Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2 | * Driver for the VINO (Video In No Out) system found in SGI Indys. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
| 4 | * This file is subject to the terms and conditions of the GNU General Public |
| 5 | * License version 2 as published by the Free Software Foundation. |
| 6 | * |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 7 | * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi> |
| 8 | * |
| 9 | * Based on the previous version of the driver for 2.4 kernels by: |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 10 | * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org> |
| 11 | */ |
| 12 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 13 | /* |
| 14 | * TODO: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 15 | * - remove "mark pages reserved-hacks" from memory allocation code |
Nick Piggin | 3c18ddd | 2008-04-28 02:12:10 -0700 | [diff] [blame] | 16 | * and implement fault() |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 17 | * - check decimation, calculating and reporting image size when |
| 18 | * using decimation |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 19 | * - implement read(), user mode buffers and overlay (?) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 20 | */ |
| 21 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 22 | #include <linux/init.h> |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 23 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | #include <linux/delay.h> |
Ladislav Michl | 495515b | 2005-09-23 10:52:27 +0000 | [diff] [blame] | 25 | #include <linux/dma-mapping.h> |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 26 | #include <linux/errno.h> |
| 27 | #include <linux/fs.h> |
Ladislav Michl | 495515b | 2005-09-23 10:52:27 +0000 | [diff] [blame] | 28 | #include <linux/interrupt.h> |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 29 | #include <linux/kernel.h> |
| 30 | #include <linux/mm.h> |
Ladislav Michl | 495515b | 2005-09-23 10:52:27 +0000 | [diff] [blame] | 31 | #include <linux/time.h> |
| 32 | #include <linux/version.h> |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 33 | #include <linux/kmod.h> |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 34 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | #include <linux/i2c.h> |
| 36 | #include <linux/i2c-algo-sgi.h> |
| 37 | |
Hans Verkuil | 33b687c | 2008-07-25 05:32:50 -0300 | [diff] [blame] | 38 | #include <linux/videodev2.h> |
Mauro Carvalho Chehab | 5e87efa | 2006-06-05 10:26:32 -0300 | [diff] [blame] | 39 | #include <media/v4l2-common.h> |
Yoichi Yuasa | c2cfcf7 | 2008-07-29 05:30:58 -0300 | [diff] [blame] | 40 | #include <media/v4l2-ioctl.h> |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 41 | #include <linux/video_decoder.h> |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 42 | #include <linux/mutex.h> |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 43 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | #include <asm/paccess.h> |
| 45 | #include <asm/io.h> |
| 46 | #include <asm/sgi/ip22.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 47 | #include <asm/sgi/mc.h> |
| 48 | |
| 49 | #include "vino.h" |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 50 | #include "saa7191.h" |
| 51 | #include "indycam.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 53 | /* Uncomment the following line to get lots and lots of (mostly useless) |
| 54 | * debug info. |
| 55 | * Note that the debug output also slows down the driver significantly */ |
| 56 | // #define VINO_DEBUG |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 57 | // #define VINO_DEBUG_INT |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 58 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 59 | #define VINO_MODULE_VERSION "0.0.5" |
| 60 | #define VINO_VERSION_CODE KERNEL_VERSION(0, 0, 5) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 61 | |
| 62 | MODULE_DESCRIPTION("SGI VINO Video4Linux2 driver"); |
| 63 | MODULE_VERSION(VINO_MODULE_VERSION); |
| 64 | MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>"); |
| 65 | MODULE_LICENSE("GPL"); |
| 66 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 67 | #ifdef VINO_DEBUG |
| 68 | #define dprintk(x...) printk("VINO: " x); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 69 | #else |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 70 | #define dprintk(x...) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 71 | #endif |
| 72 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 73 | #define VINO_NO_CHANNEL 0 |
| 74 | #define VINO_CHANNEL_A 1 |
| 75 | #define VINO_CHANNEL_B 2 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 76 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 77 | #define VINO_PAL_WIDTH 768 |
| 78 | #define VINO_PAL_HEIGHT 576 |
| 79 | #define VINO_NTSC_WIDTH 640 |
| 80 | #define VINO_NTSC_HEIGHT 480 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 82 | #define VINO_MIN_WIDTH 32 |
| 83 | #define VINO_MIN_HEIGHT 32 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 85 | #define VINO_CLIPPING_START_ODD_D1 1 |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 86 | #define VINO_CLIPPING_START_ODD_PAL 15 |
| 87 | #define VINO_CLIPPING_START_ODD_NTSC 12 |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 88 | |
| 89 | #define VINO_CLIPPING_START_EVEN_D1 2 |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 90 | #define VINO_CLIPPING_START_EVEN_PAL 15 |
| 91 | #define VINO_CLIPPING_START_EVEN_NTSC 12 |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 92 | |
| 93 | #define VINO_INPUT_CHANNEL_COUNT 3 |
| 94 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 95 | /* the number is the index for vino_inputs */ |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 96 | #define VINO_INPUT_NONE -1 |
| 97 | #define VINO_INPUT_COMPOSITE 0 |
| 98 | #define VINO_INPUT_SVIDEO 1 |
| 99 | #define VINO_INPUT_D1 2 |
| 100 | |
| 101 | #define VINO_PAGE_RATIO (PAGE_SIZE / VINO_PAGE_SIZE) |
| 102 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 103 | #define VINO_FIFO_THRESHOLD_DEFAULT 16 |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 104 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 105 | #define VINO_FRAMEBUFFER_SIZE ((VINO_PAL_WIDTH \ |
| 106 | * VINO_PAL_HEIGHT * 4 \ |
| 107 | + 3 * PAGE_SIZE) & ~(PAGE_SIZE - 1)) |
| 108 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 109 | #define VINO_FRAMEBUFFER_COUNT_MAX 8 |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 110 | |
| 111 | #define VINO_FRAMEBUFFER_UNUSED 0 |
| 112 | #define VINO_FRAMEBUFFER_IN_USE 1 |
| 113 | #define VINO_FRAMEBUFFER_READY 2 |
| 114 | |
| 115 | #define VINO_QUEUE_ERROR -1 |
| 116 | #define VINO_QUEUE_MAGIC 0x20050125 |
| 117 | |
| 118 | #define VINO_MEMORY_NONE 0 |
| 119 | #define VINO_MEMORY_MMAP 1 |
| 120 | #define VINO_MEMORY_USERPTR 2 |
| 121 | |
| 122 | #define VINO_DUMMY_DESC_COUNT 4 |
| 123 | #define VINO_DESC_FETCH_DELAY 5 /* microseconds */ |
| 124 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 125 | #define VINO_MAX_FRAME_SKIP_COUNT 128 |
| 126 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 127 | /* the number is the index for vino_data_formats */ |
| 128 | #define VINO_DATA_FMT_NONE -1 |
| 129 | #define VINO_DATA_FMT_GREY 0 |
| 130 | #define VINO_DATA_FMT_RGB332 1 |
| 131 | #define VINO_DATA_FMT_RGB32 2 |
| 132 | #define VINO_DATA_FMT_YUV 3 |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 133 | |
| 134 | #define VINO_DATA_FMT_COUNT 4 |
| 135 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 136 | /* the number is the index for vino_data_norms */ |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 137 | #define VINO_DATA_NORM_NONE -1 |
| 138 | #define VINO_DATA_NORM_NTSC 0 |
| 139 | #define VINO_DATA_NORM_PAL 1 |
| 140 | #define VINO_DATA_NORM_SECAM 2 |
| 141 | #define VINO_DATA_NORM_D1 3 |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 142 | /* The following are special entries that can be used to |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 143 | * autodetect the norm. */ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 144 | #define VINO_DATA_NORM_AUTO 0xfe |
| 145 | #define VINO_DATA_NORM_AUTO_EXT 0xff |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 146 | |
| 147 | #define VINO_DATA_NORM_COUNT 4 |
| 148 | |
| 149 | /* Internal data structure definitions */ |
| 150 | |
| 151 | struct vino_input { |
| 152 | char *name; |
| 153 | v4l2_std_id std; |
| 154 | }; |
| 155 | |
| 156 | struct vino_clipping { |
| 157 | unsigned int left, right, top, bottom; |
| 158 | }; |
| 159 | |
| 160 | struct vino_data_format { |
| 161 | /* the description */ |
| 162 | char *description; |
| 163 | /* bytes per pixel */ |
| 164 | unsigned int bpp; |
| 165 | /* V4L2 fourcc code */ |
| 166 | __u32 pixelformat; |
| 167 | /* V4L2 colorspace (duh!) */ |
| 168 | enum v4l2_colorspace colorspace; |
| 169 | }; |
| 170 | |
| 171 | struct vino_data_norm { |
| 172 | char *description; |
| 173 | unsigned int width, height; |
| 174 | struct vino_clipping odd; |
| 175 | struct vino_clipping even; |
| 176 | |
| 177 | v4l2_std_id std; |
| 178 | unsigned int fps_min, fps_max; |
| 179 | __u32 framelines; |
| 180 | }; |
| 181 | |
| 182 | struct vino_descriptor_table { |
| 183 | /* the number of PAGE_SIZE sized pages in the buffer */ |
| 184 | unsigned int page_count; |
| 185 | /* virtual (kmalloc'd) pointers to the actual data |
| 186 | * (in PAGE_SIZE chunks, used with mmap streaming) */ |
| 187 | unsigned long *virtual; |
| 188 | |
| 189 | /* cpu address for the VINO descriptor table |
| 190 | * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ |
| 191 | unsigned long *dma_cpu; |
| 192 | /* dma address for the VINO descriptor table |
| 193 | * (contains DMA addresses, VINO_PAGE_SIZE chunks) */ |
| 194 | dma_addr_t dma; |
| 195 | }; |
| 196 | |
| 197 | struct vino_framebuffer { |
| 198 | /* identifier nubmer */ |
| 199 | unsigned int id; |
| 200 | /* the length of the whole buffer */ |
| 201 | unsigned int size; |
| 202 | /* the length of actual data in buffer */ |
| 203 | unsigned int data_size; |
| 204 | /* the data format */ |
| 205 | unsigned int data_format; |
| 206 | /* the state of buffer data */ |
| 207 | unsigned int state; |
| 208 | /* is the buffer mapped in user space? */ |
| 209 | unsigned int map_count; |
| 210 | /* memory offset for mmap() */ |
| 211 | unsigned int offset; |
| 212 | /* frame counter */ |
| 213 | unsigned int frame_counter; |
| 214 | /* timestamp (written when image capture finishes) */ |
| 215 | struct timeval timestamp; |
| 216 | |
| 217 | struct vino_descriptor_table desc_table; |
| 218 | |
| 219 | spinlock_t state_lock; |
| 220 | }; |
| 221 | |
| 222 | struct vino_framebuffer_fifo { |
| 223 | unsigned int length; |
| 224 | |
| 225 | unsigned int used; |
| 226 | unsigned int head; |
| 227 | unsigned int tail; |
| 228 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 229 | unsigned int data[VINO_FRAMEBUFFER_COUNT_MAX]; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 230 | }; |
| 231 | |
| 232 | struct vino_framebuffer_queue { |
| 233 | unsigned int magic; |
| 234 | |
| 235 | /* VINO_MEMORY_NONE, VINO_MEMORY_MMAP or VINO_MEMORY_USERPTR */ |
| 236 | unsigned int type; |
| 237 | unsigned int length; |
| 238 | |
| 239 | /* data field of in and out contain index numbers for buffer */ |
| 240 | struct vino_framebuffer_fifo in; |
| 241 | struct vino_framebuffer_fifo out; |
| 242 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 243 | struct vino_framebuffer *buffer[VINO_FRAMEBUFFER_COUNT_MAX]; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 244 | |
| 245 | spinlock_t queue_lock; |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 246 | struct mutex queue_mutex; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 247 | wait_queue_head_t frame_wait_queue; |
| 248 | }; |
| 249 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 250 | struct vino_interrupt_data { |
| 251 | struct timeval timestamp; |
| 252 | unsigned int frame_counter; |
| 253 | unsigned int skip_count; |
| 254 | unsigned int skip; |
| 255 | }; |
| 256 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 257 | struct vino_channel_settings { |
| 258 | unsigned int channel; |
| 259 | |
| 260 | int input; |
| 261 | unsigned int data_format; |
| 262 | unsigned int data_norm; |
| 263 | struct vino_clipping clipping; |
| 264 | unsigned int decimation; |
| 265 | unsigned int line_size; |
| 266 | unsigned int alpha; |
| 267 | unsigned int fps; |
| 268 | unsigned int framert_reg; |
| 269 | |
| 270 | unsigned int fifo_threshold; |
| 271 | |
| 272 | struct vino_framebuffer_queue fb_queue; |
| 273 | |
| 274 | /* number of the current field */ |
| 275 | unsigned int field; |
| 276 | |
| 277 | /* read in progress */ |
| 278 | int reading; |
| 279 | /* streaming is active */ |
| 280 | int streaming; |
| 281 | /* the driver is currently processing the queue */ |
| 282 | int capturing; |
| 283 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 284 | struct mutex mutex; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 285 | spinlock_t capture_lock; |
| 286 | |
| 287 | unsigned int users; |
| 288 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 289 | struct vino_interrupt_data int_data; |
| 290 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 291 | /* V4L support */ |
| 292 | struct video_device *v4l_device; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 293 | }; |
| 294 | |
| 295 | struct vino_client { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 296 | /* the channel which owns this client: |
| 297 | * VINO_NO_CHANNEL, VINO_CHANNEL_A or VINO_CHANNEL_B */ |
| 298 | unsigned int owner; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 299 | struct i2c_client *driver; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 300 | }; |
| 301 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 302 | struct vino_settings { |
| 303 | struct vino_channel_settings a; |
| 304 | struct vino_channel_settings b; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 305 | |
| 306 | struct vino_client decoder; |
| 307 | struct vino_client camera; |
| 308 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 309 | /* a lock for vino register access */ |
| 310 | spinlock_t vino_lock; |
| 311 | /* a lock for channel input changes */ |
| 312 | spinlock_t input_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 313 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 314 | unsigned long dummy_page; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 315 | struct vino_descriptor_table dummy_desc_table; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 316 | }; |
| 317 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 318 | /* Module parameters */ |
| 319 | |
| 320 | /* |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 321 | * Using vino_pixel_conversion the ABGR32-format pixels supplied |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 322 | * by the VINO chip can be converted to more common formats |
| 323 | * like RGBA32 (or probably RGB24 in the future). This way we |
| 324 | * can give out data that can be specified correctly with |
| 325 | * the V4L2-definitions. |
| 326 | * |
| 327 | * The pixel format is specified as RGBA32 when no conversion |
| 328 | * is used. |
| 329 | * |
| 330 | * Note that this only affects the 32-bit bit depth. |
| 331 | * |
| 332 | * Use non-zero value to enable conversion. |
| 333 | */ |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 334 | static int vino_pixel_conversion; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 335 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 336 | module_param_named(pixelconv, vino_pixel_conversion, int, 0); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 337 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 338 | MODULE_PARM_DESC(pixelconv, |
| 339 | "enable pixel conversion (non-zero value enables)"); |
| 340 | |
| 341 | /* Internal data structures */ |
| 342 | |
| 343 | static struct sgi_vino *vino; |
| 344 | |
| 345 | static struct vino_settings *vino_drvdata; |
| 346 | |
| 347 | static const char *vino_driver_name = "vino"; |
| 348 | static const char *vino_driver_description = "SGI VINO"; |
| 349 | static const char *vino_bus_name = "GIO64 bus"; |
| 350 | static const char *vino_v4l_device_name_a = "SGI VINO Channel A"; |
| 351 | static const char *vino_v4l_device_name_b = "SGI VINO Channel B"; |
| 352 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 353 | static void vino_capture_tasklet(unsigned long channel); |
| 354 | |
| 355 | DECLARE_TASKLET(vino_tasklet_a, vino_capture_tasklet, VINO_CHANNEL_A); |
| 356 | DECLARE_TASKLET(vino_tasklet_b, vino_capture_tasklet, VINO_CHANNEL_B); |
| 357 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 358 | static const struct vino_input vino_inputs[] = { |
| 359 | { |
| 360 | .name = "Composite", |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 361 | .std = V4L2_STD_NTSC | V4L2_STD_PAL |
| 362 | | V4L2_STD_SECAM, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 363 | },{ |
| 364 | .name = "S-Video", |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 365 | .std = V4L2_STD_NTSC | V4L2_STD_PAL |
| 366 | | V4L2_STD_SECAM, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 367 | },{ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 368 | .name = "D1/IndyCam", |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 369 | .std = V4L2_STD_NTSC, |
| 370 | } |
| 371 | }; |
| 372 | |
| 373 | static const struct vino_data_format vino_data_formats[] = { |
| 374 | { |
| 375 | .description = "8-bit greyscale", |
| 376 | .bpp = 1, |
| 377 | .pixelformat = V4L2_PIX_FMT_GREY, |
| 378 | .colorspace = V4L2_COLORSPACE_SMPTE170M, |
| 379 | },{ |
| 380 | .description = "8-bit dithered RGB 3-3-2", |
| 381 | .bpp = 1, |
| 382 | .pixelformat = V4L2_PIX_FMT_RGB332, |
| 383 | .colorspace = V4L2_COLORSPACE_SRGB, |
| 384 | },{ |
| 385 | .description = "32-bit RGB", |
| 386 | .bpp = 4, |
| 387 | .pixelformat = V4L2_PIX_FMT_RGB32, |
| 388 | .colorspace = V4L2_COLORSPACE_SRGB, |
| 389 | },{ |
| 390 | .description = "YUV 4:2:2", |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 391 | .bpp = 2, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 392 | .pixelformat = V4L2_PIX_FMT_YUYV, // XXX: swapped? |
| 393 | .colorspace = V4L2_COLORSPACE_SMPTE170M, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 394 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 395 | }; |
| 396 | |
| 397 | static const struct vino_data_norm vino_data_norms[] = { |
| 398 | { |
| 399 | .description = "NTSC", |
| 400 | .std = V4L2_STD_NTSC, |
| 401 | .fps_min = 6, |
| 402 | .fps_max = 30, |
| 403 | .framelines = 525, |
| 404 | .width = VINO_NTSC_WIDTH, |
| 405 | .height = VINO_NTSC_HEIGHT, |
| 406 | .odd = { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 407 | .top = VINO_CLIPPING_START_ODD_NTSC, |
| 408 | .left = 0, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 409 | .bottom = VINO_CLIPPING_START_ODD_NTSC |
| 410 | + VINO_NTSC_HEIGHT / 2 - 1, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 411 | .right = VINO_NTSC_WIDTH, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 412 | }, |
| 413 | .even = { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 414 | .top = VINO_CLIPPING_START_EVEN_NTSC, |
| 415 | .left = 0, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 416 | .bottom = VINO_CLIPPING_START_EVEN_NTSC |
| 417 | + VINO_NTSC_HEIGHT / 2 - 1, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 418 | .right = VINO_NTSC_WIDTH, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 419 | }, |
| 420 | },{ |
| 421 | .description = "PAL", |
| 422 | .std = V4L2_STD_PAL, |
| 423 | .fps_min = 5, |
| 424 | .fps_max = 25, |
| 425 | .framelines = 625, |
| 426 | .width = VINO_PAL_WIDTH, |
| 427 | .height = VINO_PAL_HEIGHT, |
| 428 | .odd = { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 429 | .top = VINO_CLIPPING_START_ODD_PAL, |
| 430 | .left = 0, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 431 | .bottom = VINO_CLIPPING_START_ODD_PAL |
| 432 | + VINO_PAL_HEIGHT / 2 - 1, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 433 | .right = VINO_PAL_WIDTH, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 434 | }, |
| 435 | .even = { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 436 | .top = VINO_CLIPPING_START_EVEN_PAL, |
| 437 | .left = 0, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 438 | .bottom = VINO_CLIPPING_START_EVEN_PAL |
| 439 | + VINO_PAL_HEIGHT / 2 - 1, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 440 | .right = VINO_PAL_WIDTH, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 441 | }, |
| 442 | },{ |
| 443 | .description = "SECAM", |
| 444 | .std = V4L2_STD_SECAM, |
| 445 | .fps_min = 5, |
| 446 | .fps_max = 25, |
| 447 | .framelines = 625, |
| 448 | .width = VINO_PAL_WIDTH, |
| 449 | .height = VINO_PAL_HEIGHT, |
| 450 | .odd = { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 451 | .top = VINO_CLIPPING_START_ODD_PAL, |
| 452 | .left = 0, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 453 | .bottom = VINO_CLIPPING_START_ODD_PAL |
| 454 | + VINO_PAL_HEIGHT / 2 - 1, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 455 | .right = VINO_PAL_WIDTH, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 456 | }, |
| 457 | .even = { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 458 | .top = VINO_CLIPPING_START_EVEN_PAL, |
| 459 | .left = 0, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 460 | .bottom = VINO_CLIPPING_START_EVEN_PAL |
| 461 | + VINO_PAL_HEIGHT / 2 - 1, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 462 | .right = VINO_PAL_WIDTH, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 463 | }, |
| 464 | },{ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 465 | .description = "NTSC/D1", |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 466 | .std = V4L2_STD_NTSC, |
| 467 | .fps_min = 6, |
| 468 | .fps_max = 30, |
| 469 | .framelines = 525, |
| 470 | .width = VINO_NTSC_WIDTH, |
| 471 | .height = VINO_NTSC_HEIGHT, |
| 472 | .odd = { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 473 | .top = VINO_CLIPPING_START_ODD_D1, |
| 474 | .left = 0, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 475 | .bottom = VINO_CLIPPING_START_ODD_D1 |
| 476 | + VINO_NTSC_HEIGHT / 2 - 1, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 477 | .right = VINO_NTSC_WIDTH, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 478 | }, |
| 479 | .even = { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 480 | .top = VINO_CLIPPING_START_EVEN_D1, |
| 481 | .left = 0, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 482 | .bottom = VINO_CLIPPING_START_EVEN_D1 |
| 483 | + VINO_NTSC_HEIGHT / 2 - 1, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 484 | .right = VINO_NTSC_WIDTH, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 485 | }, |
| 486 | } |
| 487 | }; |
| 488 | |
| 489 | #define VINO_INDYCAM_V4L2_CONTROL_COUNT 9 |
| 490 | |
| 491 | struct v4l2_queryctrl vino_indycam_v4l2_controls[] = { |
| 492 | { |
| 493 | .id = V4L2_CID_AUTOGAIN, |
| 494 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 495 | .name = "Automatic Gain Control", |
| 496 | .minimum = 0, |
| 497 | .maximum = 1, |
| 498 | .step = 1, |
| 499 | .default_value = INDYCAM_AGC_DEFAULT, |
| 500 | .flags = 0, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 501 | .reserved = { INDYCAM_CONTROL_AGC, 0 }, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 502 | },{ |
| 503 | .id = V4L2_CID_AUTO_WHITE_BALANCE, |
| 504 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 505 | .name = "Automatic White Balance", |
| 506 | .minimum = 0, |
| 507 | .maximum = 1, |
| 508 | .step = 1, |
| 509 | .default_value = INDYCAM_AWB_DEFAULT, |
| 510 | .flags = 0, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 511 | .reserved = { INDYCAM_CONTROL_AWB, 0 }, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 512 | },{ |
| 513 | .id = V4L2_CID_GAIN, |
| 514 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 515 | .name = "Gain", |
| 516 | .minimum = INDYCAM_GAIN_MIN, |
| 517 | .maximum = INDYCAM_GAIN_MAX, |
| 518 | .step = 1, |
| 519 | .default_value = INDYCAM_GAIN_DEFAULT, |
| 520 | .flags = 0, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 521 | .reserved = { INDYCAM_CONTROL_GAIN, 0 }, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 522 | },{ |
| 523 | .id = V4L2_CID_PRIVATE_BASE, |
| 524 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 525 | .name = "Red Saturation", |
| 526 | .minimum = INDYCAM_RED_SATURATION_MIN, |
| 527 | .maximum = INDYCAM_RED_SATURATION_MAX, |
| 528 | .step = 1, |
| 529 | .default_value = INDYCAM_RED_SATURATION_DEFAULT, |
| 530 | .flags = 0, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 531 | .reserved = { INDYCAM_CONTROL_RED_SATURATION, 0 }, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 532 | },{ |
| 533 | .id = V4L2_CID_PRIVATE_BASE + 1, |
| 534 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 535 | .name = "Blue Saturation", |
| 536 | .minimum = INDYCAM_BLUE_SATURATION_MIN, |
| 537 | .maximum = INDYCAM_BLUE_SATURATION_MAX, |
| 538 | .step = 1, |
| 539 | .default_value = INDYCAM_BLUE_SATURATION_DEFAULT, |
| 540 | .flags = 0, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 541 | .reserved = { INDYCAM_CONTROL_BLUE_SATURATION, 0 }, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 542 | },{ |
| 543 | .id = V4L2_CID_RED_BALANCE, |
| 544 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 545 | .name = "Red Balance", |
| 546 | .minimum = INDYCAM_RED_BALANCE_MIN, |
| 547 | .maximum = INDYCAM_RED_BALANCE_MAX, |
| 548 | .step = 1, |
| 549 | .default_value = INDYCAM_RED_BALANCE_DEFAULT, |
| 550 | .flags = 0, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 551 | .reserved = { INDYCAM_CONTROL_RED_BALANCE, 0 }, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 552 | },{ |
| 553 | .id = V4L2_CID_BLUE_BALANCE, |
| 554 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 555 | .name = "Blue Balance", |
| 556 | .minimum = INDYCAM_BLUE_BALANCE_MIN, |
| 557 | .maximum = INDYCAM_BLUE_BALANCE_MAX, |
| 558 | .step = 1, |
| 559 | .default_value = INDYCAM_BLUE_BALANCE_DEFAULT, |
| 560 | .flags = 0, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 561 | .reserved = { INDYCAM_CONTROL_BLUE_BALANCE, 0 }, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 562 | },{ |
| 563 | .id = V4L2_CID_EXPOSURE, |
| 564 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 565 | .name = "Shutter Control", |
| 566 | .minimum = INDYCAM_SHUTTER_MIN, |
| 567 | .maximum = INDYCAM_SHUTTER_MAX, |
| 568 | .step = 1, |
| 569 | .default_value = INDYCAM_SHUTTER_DEFAULT, |
| 570 | .flags = 0, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 571 | .reserved = { INDYCAM_CONTROL_SHUTTER, 0 }, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 572 | },{ |
| 573 | .id = V4L2_CID_GAMMA, |
| 574 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 575 | .name = "Gamma", |
| 576 | .minimum = INDYCAM_GAMMA_MIN, |
| 577 | .maximum = INDYCAM_GAMMA_MAX, |
| 578 | .step = 1, |
| 579 | .default_value = INDYCAM_GAMMA_DEFAULT, |
| 580 | .flags = 0, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 581 | .reserved = { INDYCAM_CONTROL_GAMMA, 0 }, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 582 | } |
| 583 | }; |
| 584 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 585 | #define VINO_SAA7191_V4L2_CONTROL_COUNT 9 |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 586 | |
| 587 | struct v4l2_queryctrl vino_saa7191_v4l2_controls[] = { |
| 588 | { |
| 589 | .id = V4L2_CID_HUE, |
| 590 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 591 | .name = "Hue", |
| 592 | .minimum = SAA7191_HUE_MIN, |
| 593 | .maximum = SAA7191_HUE_MAX, |
| 594 | .step = 1, |
| 595 | .default_value = SAA7191_HUE_DEFAULT, |
| 596 | .flags = 0, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 597 | .reserved = { SAA7191_CONTROL_HUE, 0 }, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 598 | },{ |
| 599 | .id = V4L2_CID_PRIVATE_BASE, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 600 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 601 | .name = "Luminance Bandpass", |
| 602 | .minimum = SAA7191_BANDPASS_MIN, |
| 603 | .maximum = SAA7191_BANDPASS_MAX, |
| 604 | .step = 1, |
| 605 | .default_value = SAA7191_BANDPASS_DEFAULT, |
| 606 | .flags = 0, |
| 607 | .reserved = { SAA7191_CONTROL_BANDPASS, 0 }, |
| 608 | },{ |
| 609 | .id = V4L2_CID_PRIVATE_BASE + 1, |
| 610 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 611 | .name = "Luminance Bandpass Weight", |
| 612 | .minimum = SAA7191_BANDPASS_WEIGHT_MIN, |
| 613 | .maximum = SAA7191_BANDPASS_WEIGHT_MAX, |
| 614 | .step = 1, |
| 615 | .default_value = SAA7191_BANDPASS_WEIGHT_DEFAULT, |
| 616 | .flags = 0, |
| 617 | .reserved = { SAA7191_CONTROL_BANDPASS_WEIGHT, 0 }, |
| 618 | },{ |
| 619 | .id = V4L2_CID_PRIVATE_BASE + 2, |
| 620 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 621 | .name = "HF Luminance Coring", |
| 622 | .minimum = SAA7191_CORING_MIN, |
| 623 | .maximum = SAA7191_CORING_MAX, |
| 624 | .step = 1, |
| 625 | .default_value = SAA7191_CORING_DEFAULT, |
| 626 | .flags = 0, |
| 627 | .reserved = { SAA7191_CONTROL_CORING, 0 }, |
| 628 | },{ |
| 629 | .id = V4L2_CID_PRIVATE_BASE + 3, |
| 630 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 631 | .name = "Force Colour", |
| 632 | .minimum = SAA7191_FORCE_COLOUR_MIN, |
| 633 | .maximum = SAA7191_FORCE_COLOUR_MAX, |
| 634 | .step = 1, |
| 635 | .default_value = SAA7191_FORCE_COLOUR_DEFAULT, |
| 636 | .flags = 0, |
| 637 | .reserved = { SAA7191_CONTROL_FORCE_COLOUR, 0 }, |
| 638 | },{ |
| 639 | .id = V4L2_CID_PRIVATE_BASE + 4, |
| 640 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 641 | .name = "Chrominance Gain Control", |
| 642 | .minimum = SAA7191_CHROMA_GAIN_MIN, |
| 643 | .maximum = SAA7191_CHROMA_GAIN_MAX, |
| 644 | .step = 1, |
| 645 | .default_value = SAA7191_CHROMA_GAIN_DEFAULT, |
| 646 | .flags = 0, |
| 647 | .reserved = { SAA7191_CONTROL_CHROMA_GAIN, 0 }, |
| 648 | },{ |
| 649 | .id = V4L2_CID_PRIVATE_BASE + 5, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 650 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 651 | .name = "VTR Time Constant", |
| 652 | .minimum = SAA7191_VTRC_MIN, |
| 653 | .maximum = SAA7191_VTRC_MAX, |
| 654 | .step = 1, |
| 655 | .default_value = SAA7191_VTRC_DEFAULT, |
| 656 | .flags = 0, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 657 | .reserved = { SAA7191_CONTROL_VTRC, 0 }, |
| 658 | },{ |
| 659 | .id = V4L2_CID_PRIVATE_BASE + 6, |
| 660 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 661 | .name = "Luminance Delay Compensation", |
| 662 | .minimum = SAA7191_LUMA_DELAY_MIN, |
| 663 | .maximum = SAA7191_LUMA_DELAY_MAX, |
| 664 | .step = 1, |
| 665 | .default_value = SAA7191_LUMA_DELAY_DEFAULT, |
| 666 | .flags = 0, |
| 667 | .reserved = { SAA7191_CONTROL_LUMA_DELAY, 0 }, |
| 668 | },{ |
| 669 | .id = V4L2_CID_PRIVATE_BASE + 7, |
| 670 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 671 | .name = "Vertical Noise Reduction", |
| 672 | .minimum = SAA7191_VNR_MIN, |
| 673 | .maximum = SAA7191_VNR_MAX, |
| 674 | .step = 1, |
| 675 | .default_value = SAA7191_VNR_DEFAULT, |
| 676 | .flags = 0, |
| 677 | .reserved = { SAA7191_CONTROL_VNR, 0 }, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 678 | } |
| 679 | }; |
| 680 | |
| 681 | /* VINO I2C bus functions */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 682 | |
| 683 | unsigned i2c_vino_getctrl(void *data) |
| 684 | { |
| 685 | return vino->i2c_control; |
| 686 | } |
| 687 | |
| 688 | void i2c_vino_setctrl(void *data, unsigned val) |
| 689 | { |
| 690 | vino->i2c_control = val; |
| 691 | } |
| 692 | |
| 693 | unsigned i2c_vino_rdata(void *data) |
| 694 | { |
| 695 | return vino->i2c_data; |
| 696 | } |
| 697 | |
| 698 | void i2c_vino_wdata(void *data, unsigned val) |
| 699 | { |
| 700 | vino->i2c_data = val; |
| 701 | } |
| 702 | |
| 703 | static struct i2c_algo_sgi_data i2c_sgi_vino_data = |
| 704 | { |
| 705 | .getctrl = &i2c_vino_getctrl, |
| 706 | .setctrl = &i2c_vino_setctrl, |
| 707 | .rdata = &i2c_vino_rdata, |
| 708 | .wdata = &i2c_vino_wdata, |
| 709 | .xfer_timeout = 200, |
| 710 | .ack_timeout = 1000, |
| 711 | }; |
| 712 | |
| 713 | /* |
| 714 | * There are two possible clients on VINO I2C bus, so we limit usage only |
| 715 | * to them. |
| 716 | */ |
| 717 | static int i2c_vino_client_reg(struct i2c_client *client) |
| 718 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 719 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 720 | int ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 721 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 722 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 723 | switch (client->driver->id) { |
| 724 | case I2C_DRIVERID_SAA7191: |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 725 | if (vino_drvdata->decoder.driver) |
| 726 | ret = -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 727 | else |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 728 | vino_drvdata->decoder.driver = client; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 729 | break; |
| 730 | case I2C_DRIVERID_INDYCAM: |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 731 | if (vino_drvdata->camera.driver) |
| 732 | ret = -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 733 | else |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 734 | vino_drvdata->camera.driver = client; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 735 | break; |
| 736 | default: |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 737 | ret = -ENODEV; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 738 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 739 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 741 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 742 | } |
| 743 | |
| 744 | static int i2c_vino_client_unreg(struct i2c_client *client) |
| 745 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 746 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 747 | int ret = 0; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 749 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 750 | if (client == vino_drvdata->decoder.driver) { |
| 751 | if (vino_drvdata->decoder.owner != VINO_NO_CHANNEL) |
| 752 | ret = -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | else |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 754 | vino_drvdata->decoder.driver = NULL; |
| 755 | } else if (client == vino_drvdata->camera.driver) { |
| 756 | if (vino_drvdata->camera.owner != VINO_NO_CHANNEL) |
| 757 | ret = -EBUSY; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 758 | else |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 759 | vino_drvdata->camera.driver = NULL; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 760 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 761 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 762 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 763 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 764 | } |
| 765 | |
| 766 | static struct i2c_adapter vino_i2c_adapter = |
| 767 | { |
| 768 | .name = "VINO I2C bus", |
| 769 | .id = I2C_HW_SGI_VINO, |
| 770 | .algo_data = &i2c_sgi_vino_data, |
| 771 | .client_register = &i2c_vino_client_reg, |
| 772 | .client_unregister = &i2c_vino_client_unreg, |
| 773 | }; |
| 774 | |
| 775 | static int vino_i2c_add_bus(void) |
| 776 | { |
| 777 | return i2c_sgi_add_bus(&vino_i2c_adapter); |
| 778 | } |
| 779 | |
| 780 | static int vino_i2c_del_bus(void) |
| 781 | { |
Jean Delvare | 3269711 | 2006-12-10 21:21:33 +0100 | [diff] [blame] | 782 | return i2c_del_adapter(&vino_i2c_adapter); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 783 | } |
| 784 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 785 | static int i2c_camera_command(unsigned int cmd, void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 786 | { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 787 | return vino_drvdata->camera.driver-> |
| 788 | driver->command(vino_drvdata->camera.driver, |
| 789 | cmd, arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 790 | } |
| 791 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 792 | static int i2c_decoder_command(unsigned int cmd, void *arg) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 793 | { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 794 | return vino_drvdata->decoder.driver-> |
| 795 | driver->command(vino_drvdata->decoder.driver, |
| 796 | cmd, arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 797 | } |
| 798 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 799 | /* VINO framebuffer/DMA descriptor management */ |
| 800 | |
| 801 | static void vino_free_buffer_with_count(struct vino_framebuffer *fb, |
| 802 | unsigned int count) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 803 | { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 804 | unsigned int i; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 805 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 806 | dprintk("vino_free_buffer_with_count(): count = %d\n", count); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 807 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 808 | for (i = 0; i < count; i++) { |
Hans Verkuil | eda9e4e | 2008-08-22 17:12:08 -0300 | [diff] [blame] | 809 | ClearPageReserved(virt_to_page((void *)fb->desc_table.virtual[i])); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 810 | dma_unmap_single(NULL, |
| 811 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], |
| 812 | PAGE_SIZE, DMA_FROM_DEVICE); |
| 813 | free_page(fb->desc_table.virtual[i]); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 814 | } |
| 815 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 816 | dma_free_coherent(NULL, |
| 817 | VINO_PAGE_RATIO * (fb->desc_table.page_count + 4) * |
| 818 | sizeof(dma_addr_t), (void *)fb->desc_table.dma_cpu, |
| 819 | fb->desc_table.dma); |
| 820 | kfree(fb->desc_table.virtual); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 821 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 822 | memset(fb, 0, sizeof(struct vino_framebuffer)); |
| 823 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 824 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 825 | static void vino_free_buffer(struct vino_framebuffer *fb) |
| 826 | { |
| 827 | vino_free_buffer_with_count(fb, fb->desc_table.page_count); |
| 828 | } |
| 829 | |
| 830 | static int vino_allocate_buffer(struct vino_framebuffer *fb, |
| 831 | unsigned int size) |
| 832 | { |
| 833 | unsigned int count, i, j; |
| 834 | int ret = 0; |
| 835 | |
| 836 | dprintk("vino_allocate_buffer():\n"); |
| 837 | |
| 838 | if (size < 1) |
| 839 | return -EINVAL; |
| 840 | |
| 841 | memset(fb, 0, sizeof(struct vino_framebuffer)); |
| 842 | |
| 843 | count = ((size / PAGE_SIZE) + 4) & ~3; |
| 844 | |
| 845 | dprintk("vino_allocate_buffer(): size = %d, count = %d\n", |
| 846 | size, count); |
| 847 | |
| 848 | /* allocate memory for table with virtual (page) addresses */ |
| 849 | fb->desc_table.virtual = (unsigned long *) |
| 850 | kmalloc(count * sizeof(unsigned long), GFP_KERNEL); |
| 851 | if (!fb->desc_table.virtual) |
| 852 | return -ENOMEM; |
| 853 | |
| 854 | /* allocate memory for table with dma addresses |
| 855 | * (has space for four extra descriptors) */ |
| 856 | fb->desc_table.dma_cpu = |
| 857 | dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * |
| 858 | sizeof(dma_addr_t), &fb->desc_table.dma, |
| 859 | GFP_KERNEL | GFP_DMA); |
| 860 | if (!fb->desc_table.dma_cpu) { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 861 | ret = -ENOMEM; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 862 | goto out_free_virtual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 863 | } |
| 864 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 865 | /* allocate pages for the buffer and acquire the according |
| 866 | * dma addresses */ |
| 867 | for (i = 0; i < count; i++) { |
| 868 | dma_addr_t dma_data_addr; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 869 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 870 | fb->desc_table.virtual[i] = |
| 871 | get_zeroed_page(GFP_KERNEL | GFP_DMA); |
| 872 | if (!fb->desc_table.virtual[i]) { |
| 873 | ret = -ENOBUFS; |
| 874 | break; |
| 875 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 876 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 877 | dma_data_addr = |
| 878 | dma_map_single(NULL, |
| 879 | (void *)fb->desc_table.virtual[i], |
| 880 | PAGE_SIZE, DMA_FROM_DEVICE); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 881 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 882 | for (j = 0; j < VINO_PAGE_RATIO; j++) { |
| 883 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = |
| 884 | dma_data_addr + VINO_PAGE_SIZE * j; |
| 885 | } |
| 886 | |
Hans Verkuil | eda9e4e | 2008-08-22 17:12:08 -0300 | [diff] [blame] | 887 | SetPageReserved(virt_to_page((void *)fb->desc_table.virtual[i])); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 888 | } |
| 889 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 890 | /* page_count needs to be set anyway, because the descriptor table has |
| 891 | * been allocated according to this number */ |
| 892 | fb->desc_table.page_count = count; |
| 893 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 894 | if (ret) { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 895 | /* the descriptor with index i doesn't contain |
| 896 | * a valid address yet */ |
| 897 | vino_free_buffer_with_count(fb, i); |
| 898 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 899 | } |
| 900 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 901 | //fb->size = size; |
| 902 | fb->size = count * PAGE_SIZE; |
| 903 | fb->data_format = VINO_DATA_FMT_NONE; |
| 904 | |
| 905 | /* set the dma stop-bit for the last (count+1)th descriptor */ |
| 906 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; |
| 907 | return 0; |
| 908 | |
| 909 | out_free_virtual: |
| 910 | kfree(fb->desc_table.virtual); |
| 911 | return ret; |
| 912 | } |
| 913 | |
| 914 | #if 0 |
| 915 | /* user buffers not fully implemented yet */ |
| 916 | static int vino_prepare_user_buffer(struct vino_framebuffer *fb, |
| 917 | void *user, |
| 918 | unsigned int size) |
| 919 | { |
| 920 | unsigned int count, i, j; |
| 921 | int ret = 0; |
| 922 | |
| 923 | dprintk("vino_prepare_user_buffer():\n"); |
| 924 | |
| 925 | if (size < 1) |
| 926 | return -EINVAL; |
| 927 | |
| 928 | memset(fb, 0, sizeof(struct vino_framebuffer)); |
| 929 | |
| 930 | count = ((size / PAGE_SIZE)) & ~3; |
| 931 | |
| 932 | dprintk("vino_prepare_user_buffer(): size = %d, count = %d\n", |
| 933 | size, count); |
| 934 | |
| 935 | /* allocate memory for table with virtual (page) addresses */ |
| 936 | fb->desc_table.virtual = (unsigned long *) |
| 937 | kmalloc(count * sizeof(unsigned long), GFP_KERNEL); |
| 938 | if (!fb->desc_table.virtual) |
| 939 | return -ENOMEM; |
| 940 | |
| 941 | /* allocate memory for table with dma addresses |
| 942 | * (has space for four extra descriptors) */ |
| 943 | fb->desc_table.dma_cpu = |
| 944 | dma_alloc_coherent(NULL, VINO_PAGE_RATIO * (count + 4) * |
| 945 | sizeof(dma_addr_t), &fb->desc_table.dma, |
| 946 | GFP_KERNEL | GFP_DMA); |
| 947 | if (!fb->desc_table.dma_cpu) { |
| 948 | ret = -ENOMEM; |
| 949 | goto out_free_virtual; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 950 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 951 | |
| 952 | /* allocate pages for the buffer and acquire the according |
| 953 | * dma addresses */ |
| 954 | for (i = 0; i < count; i++) { |
| 955 | dma_addr_t dma_data_addr; |
| 956 | |
| 957 | fb->desc_table.virtual[i] = |
| 958 | get_zeroed_page(GFP_KERNEL | GFP_DMA); |
| 959 | if (!fb->desc_table.virtual[i]) { |
| 960 | ret = -ENOBUFS; |
| 961 | break; |
| 962 | } |
| 963 | |
| 964 | dma_data_addr = |
| 965 | dma_map_single(NULL, |
| 966 | (void *)fb->desc_table.virtual[i], |
| 967 | PAGE_SIZE, DMA_FROM_DEVICE); |
| 968 | |
| 969 | for (j = 0; j < VINO_PAGE_RATIO; j++) { |
| 970 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i + j] = |
| 971 | dma_data_addr + VINO_PAGE_SIZE * j; |
| 972 | } |
| 973 | |
Hans Verkuil | eda9e4e | 2008-08-22 17:12:08 -0300 | [diff] [blame] | 974 | SetPageReserved(virt_to_page((void *)fb->desc_table.virtual[i])); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 975 | } |
| 976 | |
| 977 | /* page_count needs to be set anyway, because the descriptor table has |
| 978 | * been allocated according to this number */ |
| 979 | fb->desc_table.page_count = count; |
| 980 | |
| 981 | if (ret) { |
| 982 | /* the descriptor with index i doesn't contain |
| 983 | * a valid address yet */ |
| 984 | vino_free_buffer_with_count(fb, i); |
| 985 | return ret; |
| 986 | } |
| 987 | |
| 988 | //fb->size = size; |
| 989 | fb->size = count * PAGE_SIZE; |
| 990 | |
| 991 | /* set the dma stop-bit for the last (count+1)th descriptor */ |
| 992 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * count] = VINO_DESC_STOP; |
| 993 | return 0; |
| 994 | |
| 995 | out_free_virtual: |
| 996 | kfree(fb->desc_table.virtual); |
| 997 | return ret; |
| 998 | } |
| 999 | #endif |
| 1000 | |
| 1001 | static void vino_sync_buffer(struct vino_framebuffer *fb) |
| 1002 | { |
| 1003 | int i; |
| 1004 | |
| 1005 | dprintk("vino_sync_buffer():\n"); |
| 1006 | |
| 1007 | for (i = 0; i < fb->desc_table.page_count; i++) |
| 1008 | dma_sync_single(NULL, |
| 1009 | fb->desc_table.dma_cpu[VINO_PAGE_RATIO * i], |
| 1010 | PAGE_SIZE, DMA_FROM_DEVICE); |
| 1011 | } |
| 1012 | |
| 1013 | /* Framebuffer fifo functions (need to be locked externally) */ |
| 1014 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1015 | static inline void vino_fifo_init(struct vino_framebuffer_fifo *f, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1016 | unsigned int length) |
| 1017 | { |
| 1018 | f->length = 0; |
| 1019 | f->used = 0; |
| 1020 | f->head = 0; |
| 1021 | f->tail = 0; |
| 1022 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1023 | if (length > VINO_FRAMEBUFFER_COUNT_MAX) |
| 1024 | length = VINO_FRAMEBUFFER_COUNT_MAX; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1025 | |
| 1026 | f->length = length; |
| 1027 | } |
| 1028 | |
| 1029 | /* returns true/false */ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1030 | static inline int vino_fifo_has_id(struct vino_framebuffer_fifo *f, |
| 1031 | unsigned int id) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1032 | { |
| 1033 | unsigned int i; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1034 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1035 | for (i = f->head; i == (f->tail - 1); i = (i + 1) % f->length) { |
| 1036 | if (f->data[i] == id) |
| 1037 | return 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1038 | } |
| 1039 | |
| 1040 | return 0; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1041 | } |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1042 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1043 | #if 0 |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1044 | /* returns true/false */ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1045 | static inline int vino_fifo_full(struct vino_framebuffer_fifo *f) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1046 | { |
| 1047 | return (f->used == f->length); |
| 1048 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1049 | #endif |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1050 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1051 | static inline unsigned int vino_fifo_get_used(struct vino_framebuffer_fifo *f) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1052 | { |
| 1053 | return f->used; |
| 1054 | } |
| 1055 | |
| 1056 | static int vino_fifo_enqueue(struct vino_framebuffer_fifo *f, unsigned int id) |
| 1057 | { |
| 1058 | if (id >= f->length) { |
| 1059 | return VINO_QUEUE_ERROR; |
| 1060 | } |
| 1061 | |
| 1062 | if (vino_fifo_has_id(f, id)) { |
| 1063 | return VINO_QUEUE_ERROR; |
| 1064 | } |
| 1065 | |
| 1066 | if (f->used < f->length) { |
| 1067 | f->data[f->tail] = id; |
| 1068 | f->tail = (f->tail + 1) % f->length; |
| 1069 | f->used++; |
| 1070 | } else { |
| 1071 | return VINO_QUEUE_ERROR; |
| 1072 | } |
| 1073 | |
| 1074 | return 0; |
| 1075 | } |
| 1076 | |
| 1077 | static int vino_fifo_peek(struct vino_framebuffer_fifo *f, unsigned int *id) |
| 1078 | { |
| 1079 | if (f->used > 0) { |
| 1080 | *id = f->data[f->head]; |
| 1081 | } else { |
| 1082 | return VINO_QUEUE_ERROR; |
| 1083 | } |
| 1084 | |
| 1085 | return 0; |
| 1086 | } |
| 1087 | |
| 1088 | static int vino_fifo_dequeue(struct vino_framebuffer_fifo *f, unsigned int *id) |
| 1089 | { |
| 1090 | if (f->used > 0) { |
| 1091 | *id = f->data[f->head]; |
| 1092 | f->head = (f->head + 1) % f->length; |
| 1093 | f->used--; |
| 1094 | } else { |
| 1095 | return VINO_QUEUE_ERROR; |
| 1096 | } |
| 1097 | |
| 1098 | return 0; |
| 1099 | } |
| 1100 | |
| 1101 | /* Framebuffer queue functions */ |
| 1102 | |
| 1103 | /* execute with queue_lock locked */ |
| 1104 | static void vino_queue_free_with_count(struct vino_framebuffer_queue *q, |
| 1105 | unsigned int length) |
| 1106 | { |
| 1107 | unsigned int i; |
| 1108 | |
| 1109 | q->length = 0; |
| 1110 | memset(&q->in, 0, sizeof(struct vino_framebuffer_fifo)); |
| 1111 | memset(&q->out, 0, sizeof(struct vino_framebuffer_fifo)); |
| 1112 | for (i = 0; i < length; i++) { |
| 1113 | dprintk("vino_queue_free_with_count(): freeing buffer %d\n", |
| 1114 | i); |
| 1115 | vino_free_buffer(q->buffer[i]); |
| 1116 | kfree(q->buffer[i]); |
| 1117 | } |
| 1118 | |
| 1119 | q->type = VINO_MEMORY_NONE; |
| 1120 | q->magic = 0; |
| 1121 | } |
| 1122 | |
| 1123 | static void vino_queue_free(struct vino_framebuffer_queue *q) |
| 1124 | { |
| 1125 | dprintk("vino_queue_free():\n"); |
| 1126 | |
| 1127 | if (q->magic != VINO_QUEUE_MAGIC) |
| 1128 | return; |
| 1129 | if (q->type != VINO_MEMORY_MMAP) |
| 1130 | return; |
| 1131 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1132 | mutex_lock(&q->queue_mutex); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1133 | |
| 1134 | vino_queue_free_with_count(q, q->length); |
| 1135 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1136 | mutex_unlock(&q->queue_mutex); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1137 | } |
| 1138 | |
| 1139 | static int vino_queue_init(struct vino_framebuffer_queue *q, |
| 1140 | unsigned int *length) |
| 1141 | { |
| 1142 | unsigned int i; |
| 1143 | int ret = 0; |
| 1144 | |
| 1145 | dprintk("vino_queue_init(): length = %d\n", *length); |
| 1146 | |
| 1147 | if (q->magic == VINO_QUEUE_MAGIC) { |
| 1148 | dprintk("vino_queue_init(): queue already initialized!\n"); |
| 1149 | return -EINVAL; |
| 1150 | } |
| 1151 | |
| 1152 | if (q->type != VINO_MEMORY_NONE) { |
| 1153 | dprintk("vino_queue_init(): queue already initialized!\n"); |
| 1154 | return -EINVAL; |
| 1155 | } |
| 1156 | |
| 1157 | if (*length < 1) |
| 1158 | return -EINVAL; |
| 1159 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1160 | mutex_lock(&q->queue_mutex); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1161 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1162 | if (*length > VINO_FRAMEBUFFER_COUNT_MAX) |
| 1163 | *length = VINO_FRAMEBUFFER_COUNT_MAX; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1164 | |
| 1165 | q->length = 0; |
| 1166 | |
| 1167 | for (i = 0; i < *length; i++) { |
| 1168 | dprintk("vino_queue_init(): allocating buffer %d\n", i); |
| 1169 | q->buffer[i] = kmalloc(sizeof(struct vino_framebuffer), |
| 1170 | GFP_KERNEL); |
| 1171 | if (!q->buffer[i]) { |
| 1172 | dprintk("vino_queue_init(): kmalloc() failed\n"); |
| 1173 | ret = -ENOMEM; |
| 1174 | break; |
| 1175 | } |
| 1176 | |
| 1177 | ret = vino_allocate_buffer(q->buffer[i], |
| 1178 | VINO_FRAMEBUFFER_SIZE); |
| 1179 | if (ret) { |
| 1180 | kfree(q->buffer[i]); |
| 1181 | dprintk("vino_queue_init(): " |
| 1182 | "vino_allocate_buffer() failed\n"); |
| 1183 | break; |
| 1184 | } |
| 1185 | |
| 1186 | q->buffer[i]->id = i; |
| 1187 | if (i > 0) { |
| 1188 | q->buffer[i]->offset = q->buffer[i - 1]->offset + |
| 1189 | q->buffer[i - 1]->size; |
| 1190 | } else { |
| 1191 | q->buffer[i]->offset = 0; |
| 1192 | } |
| 1193 | |
| 1194 | spin_lock_init(&q->buffer[i]->state_lock); |
| 1195 | |
| 1196 | dprintk("vino_queue_init(): buffer = %d, offset = %d, " |
| 1197 | "size = %d\n", i, q->buffer[i]->offset, |
| 1198 | q->buffer[i]->size); |
| 1199 | } |
| 1200 | |
| 1201 | if (ret) { |
| 1202 | vino_queue_free_with_count(q, i); |
| 1203 | *length = 0; |
| 1204 | } else { |
| 1205 | q->length = *length; |
| 1206 | vino_fifo_init(&q->in, q->length); |
| 1207 | vino_fifo_init(&q->out, q->length); |
| 1208 | q->type = VINO_MEMORY_MMAP; |
| 1209 | q->magic = VINO_QUEUE_MAGIC; |
| 1210 | } |
| 1211 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 1212 | mutex_unlock(&q->queue_mutex); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1213 | |
| 1214 | return ret; |
| 1215 | } |
| 1216 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1217 | static struct vino_framebuffer *vino_queue_add(struct |
| 1218 | vino_framebuffer_queue *q, |
| 1219 | unsigned int id) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1220 | { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1221 | struct vino_framebuffer *ret = NULL; |
| 1222 | unsigned int total; |
| 1223 | unsigned long flags; |
| 1224 | |
| 1225 | dprintk("vino_queue_add(): id = %d\n", id); |
| 1226 | |
| 1227 | if (q->magic != VINO_QUEUE_MAGIC) { |
| 1228 | return ret; |
| 1229 | } |
| 1230 | |
| 1231 | spin_lock_irqsave(&q->queue_lock, flags); |
| 1232 | |
| 1233 | if (q->length == 0) |
| 1234 | goto out; |
| 1235 | |
| 1236 | if (id >= q->length) |
| 1237 | goto out; |
| 1238 | |
| 1239 | /* not needed?: if (vino_fifo_full(&q->out)) { |
| 1240 | goto out; |
| 1241 | }*/ |
| 1242 | /* check that outgoing queue isn't already full |
| 1243 | * (or that it won't become full) */ |
| 1244 | total = vino_fifo_get_used(&q->in) + |
| 1245 | vino_fifo_get_used(&q->out); |
| 1246 | if (total >= q->length) |
| 1247 | goto out; |
| 1248 | |
| 1249 | if (vino_fifo_enqueue(&q->in, id)) |
| 1250 | goto out; |
| 1251 | |
| 1252 | ret = q->buffer[id]; |
| 1253 | |
| 1254 | out: |
| 1255 | spin_unlock_irqrestore(&q->queue_lock, flags); |
| 1256 | |
| 1257 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1258 | } |
| 1259 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1260 | static struct vino_framebuffer *vino_queue_transfer(struct |
| 1261 | vino_framebuffer_queue *q) |
| 1262 | { |
| 1263 | struct vino_framebuffer *ret = NULL; |
| 1264 | struct vino_framebuffer *fb; |
| 1265 | int id; |
| 1266 | unsigned long flags; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1267 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1268 | dprintk("vino_queue_transfer():\n"); |
| 1269 | |
| 1270 | if (q->magic != VINO_QUEUE_MAGIC) { |
| 1271 | return ret; |
| 1272 | } |
| 1273 | |
| 1274 | spin_lock_irqsave(&q->queue_lock, flags); |
| 1275 | |
| 1276 | if (q->length == 0) |
| 1277 | goto out; |
| 1278 | |
| 1279 | // now this actually removes an entry from the incoming queue |
| 1280 | if (vino_fifo_dequeue(&q->in, &id)) { |
| 1281 | goto out; |
| 1282 | } |
| 1283 | |
| 1284 | dprintk("vino_queue_transfer(): id = %d\n", id); |
| 1285 | fb = q->buffer[id]; |
| 1286 | |
| 1287 | // we have already checked that the outgoing queue is not full, but... |
| 1288 | if (vino_fifo_enqueue(&q->out, id)) { |
| 1289 | printk(KERN_ERR "vino_queue_transfer(): " |
| 1290 | "outgoing queue is full, this shouldn't happen!\n"); |
| 1291 | goto out; |
| 1292 | } |
| 1293 | |
| 1294 | ret = fb; |
| 1295 | out: |
| 1296 | spin_unlock_irqrestore(&q->queue_lock, flags); |
| 1297 | |
| 1298 | return ret; |
| 1299 | } |
| 1300 | |
| 1301 | /* returns true/false */ |
| 1302 | static int vino_queue_incoming_contains(struct vino_framebuffer_queue *q, |
| 1303 | unsigned int id) |
| 1304 | { |
| 1305 | int ret = 0; |
| 1306 | unsigned long flags; |
| 1307 | |
| 1308 | if (q->magic != VINO_QUEUE_MAGIC) { |
| 1309 | return ret; |
| 1310 | } |
| 1311 | |
| 1312 | spin_lock_irqsave(&q->queue_lock, flags); |
| 1313 | |
| 1314 | if (q->length == 0) |
| 1315 | goto out; |
| 1316 | |
| 1317 | ret = vino_fifo_has_id(&q->in, id); |
| 1318 | |
| 1319 | out: |
| 1320 | spin_unlock_irqrestore(&q->queue_lock, flags); |
| 1321 | |
| 1322 | return ret; |
| 1323 | } |
| 1324 | |
| 1325 | /* returns true/false */ |
| 1326 | static int vino_queue_outgoing_contains(struct vino_framebuffer_queue *q, |
| 1327 | unsigned int id) |
| 1328 | { |
| 1329 | int ret = 0; |
| 1330 | unsigned long flags; |
| 1331 | |
| 1332 | if (q->magic != VINO_QUEUE_MAGIC) { |
| 1333 | return ret; |
| 1334 | } |
| 1335 | |
| 1336 | spin_lock_irqsave(&q->queue_lock, flags); |
| 1337 | |
| 1338 | if (q->length == 0) |
| 1339 | goto out; |
| 1340 | |
| 1341 | ret = vino_fifo_has_id(&q->out, id); |
| 1342 | |
| 1343 | out: |
| 1344 | spin_unlock_irqrestore(&q->queue_lock, flags); |
| 1345 | |
| 1346 | return ret; |
| 1347 | } |
| 1348 | |
| 1349 | static int vino_queue_get_incoming(struct vino_framebuffer_queue *q, |
| 1350 | unsigned int *used) |
| 1351 | { |
| 1352 | int ret = 0; |
| 1353 | unsigned long flags; |
| 1354 | |
| 1355 | if (q->magic != VINO_QUEUE_MAGIC) { |
| 1356 | return VINO_QUEUE_ERROR; |
| 1357 | } |
| 1358 | |
| 1359 | spin_lock_irqsave(&q->queue_lock, flags); |
| 1360 | |
| 1361 | if (q->length == 0) { |
| 1362 | ret = VINO_QUEUE_ERROR; |
| 1363 | goto out; |
| 1364 | } |
| 1365 | |
| 1366 | *used = vino_fifo_get_used(&q->in); |
| 1367 | |
| 1368 | out: |
| 1369 | spin_unlock_irqrestore(&q->queue_lock, flags); |
| 1370 | |
| 1371 | return ret; |
| 1372 | } |
| 1373 | |
| 1374 | static int vino_queue_get_outgoing(struct vino_framebuffer_queue *q, |
| 1375 | unsigned int *used) |
| 1376 | { |
| 1377 | int ret = 0; |
| 1378 | unsigned long flags; |
| 1379 | |
| 1380 | if (q->magic != VINO_QUEUE_MAGIC) { |
| 1381 | return VINO_QUEUE_ERROR; |
| 1382 | } |
| 1383 | |
| 1384 | spin_lock_irqsave(&q->queue_lock, flags); |
| 1385 | |
| 1386 | if (q->length == 0) { |
| 1387 | ret = VINO_QUEUE_ERROR; |
| 1388 | goto out; |
| 1389 | } |
| 1390 | |
| 1391 | *used = vino_fifo_get_used(&q->out); |
| 1392 | |
| 1393 | out: |
| 1394 | spin_unlock_irqrestore(&q->queue_lock, flags); |
| 1395 | |
| 1396 | return ret; |
| 1397 | } |
| 1398 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1399 | #if 0 |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1400 | static int vino_queue_get_total(struct vino_framebuffer_queue *q, |
| 1401 | unsigned int *total) |
| 1402 | { |
| 1403 | int ret = 0; |
| 1404 | unsigned long flags; |
| 1405 | |
| 1406 | if (q->magic != VINO_QUEUE_MAGIC) { |
| 1407 | return VINO_QUEUE_ERROR; |
| 1408 | } |
| 1409 | |
| 1410 | spin_lock_irqsave(&q->queue_lock, flags); |
| 1411 | |
| 1412 | if (q->length == 0) { |
| 1413 | ret = VINO_QUEUE_ERROR; |
| 1414 | goto out; |
| 1415 | } |
| 1416 | |
| 1417 | *total = vino_fifo_get_used(&q->in) + |
| 1418 | vino_fifo_get_used(&q->out); |
| 1419 | |
| 1420 | out: |
| 1421 | spin_unlock_irqrestore(&q->queue_lock, flags); |
| 1422 | |
| 1423 | return ret; |
| 1424 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1425 | #endif |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1426 | |
| 1427 | static struct vino_framebuffer *vino_queue_peek(struct |
| 1428 | vino_framebuffer_queue *q, |
| 1429 | unsigned int *id) |
| 1430 | { |
| 1431 | struct vino_framebuffer *ret = NULL; |
| 1432 | unsigned long flags; |
| 1433 | |
| 1434 | if (q->magic != VINO_QUEUE_MAGIC) { |
| 1435 | return ret; |
| 1436 | } |
| 1437 | |
| 1438 | spin_lock_irqsave(&q->queue_lock, flags); |
| 1439 | |
| 1440 | if (q->length == 0) |
| 1441 | goto out; |
| 1442 | |
| 1443 | if (vino_fifo_peek(&q->in, id)) { |
| 1444 | goto out; |
| 1445 | } |
| 1446 | |
| 1447 | ret = q->buffer[*id]; |
| 1448 | out: |
| 1449 | spin_unlock_irqrestore(&q->queue_lock, flags); |
| 1450 | |
| 1451 | return ret; |
| 1452 | } |
| 1453 | |
| 1454 | static struct vino_framebuffer *vino_queue_remove(struct |
| 1455 | vino_framebuffer_queue *q, |
| 1456 | unsigned int *id) |
| 1457 | { |
| 1458 | struct vino_framebuffer *ret = NULL; |
| 1459 | unsigned long flags; |
| 1460 | dprintk("vino_queue_remove():\n"); |
| 1461 | |
| 1462 | if (q->magic != VINO_QUEUE_MAGIC) { |
| 1463 | return ret; |
| 1464 | } |
| 1465 | |
| 1466 | spin_lock_irqsave(&q->queue_lock, flags); |
| 1467 | |
| 1468 | if (q->length == 0) |
| 1469 | goto out; |
| 1470 | |
| 1471 | if (vino_fifo_dequeue(&q->out, id)) { |
| 1472 | goto out; |
| 1473 | } |
| 1474 | |
| 1475 | dprintk("vino_queue_remove(): id = %d\n", *id); |
| 1476 | ret = q->buffer[*id]; |
| 1477 | out: |
| 1478 | spin_unlock_irqrestore(&q->queue_lock, flags); |
| 1479 | |
| 1480 | return ret; |
| 1481 | } |
| 1482 | |
| 1483 | static struct |
| 1484 | vino_framebuffer *vino_queue_get_buffer(struct vino_framebuffer_queue *q, |
| 1485 | unsigned int id) |
| 1486 | { |
| 1487 | struct vino_framebuffer *ret = NULL; |
| 1488 | unsigned long flags; |
| 1489 | |
| 1490 | if (q->magic != VINO_QUEUE_MAGIC) { |
| 1491 | return ret; |
| 1492 | } |
| 1493 | |
| 1494 | spin_lock_irqsave(&q->queue_lock, flags); |
| 1495 | |
| 1496 | if (q->length == 0) |
| 1497 | goto out; |
| 1498 | |
| 1499 | if (id >= q->length) |
| 1500 | goto out; |
| 1501 | |
| 1502 | ret = q->buffer[id]; |
| 1503 | out: |
| 1504 | spin_unlock_irqrestore(&q->queue_lock, flags); |
| 1505 | |
| 1506 | return ret; |
| 1507 | } |
| 1508 | |
| 1509 | static unsigned int vino_queue_get_length(struct vino_framebuffer_queue *q) |
| 1510 | { |
| 1511 | unsigned int length = 0; |
| 1512 | unsigned long flags; |
| 1513 | |
| 1514 | if (q->magic != VINO_QUEUE_MAGIC) { |
| 1515 | return length; |
| 1516 | } |
| 1517 | |
| 1518 | spin_lock_irqsave(&q->queue_lock, flags); |
| 1519 | length = q->length; |
| 1520 | spin_unlock_irqrestore(&q->queue_lock, flags); |
| 1521 | |
| 1522 | return length; |
| 1523 | } |
| 1524 | |
| 1525 | static int vino_queue_has_mapped_buffers(struct vino_framebuffer_queue *q) |
| 1526 | { |
| 1527 | unsigned int i; |
| 1528 | int ret = 0; |
| 1529 | unsigned long flags; |
| 1530 | |
| 1531 | if (q->magic != VINO_QUEUE_MAGIC) { |
| 1532 | return ret; |
| 1533 | } |
| 1534 | |
| 1535 | spin_lock_irqsave(&q->queue_lock, flags); |
| 1536 | for (i = 0; i < q->length; i++) { |
| 1537 | if (q->buffer[i]->map_count > 0) { |
| 1538 | ret = 1; |
| 1539 | break; |
| 1540 | } |
| 1541 | } |
| 1542 | spin_unlock_irqrestore(&q->queue_lock, flags); |
| 1543 | |
| 1544 | return ret; |
| 1545 | } |
| 1546 | |
| 1547 | /* VINO functions */ |
| 1548 | |
| 1549 | /* execute with input_lock locked */ |
| 1550 | static void vino_update_line_size(struct vino_channel_settings *vcs) |
| 1551 | { |
| 1552 | unsigned int w = vcs->clipping.right - vcs->clipping.left; |
| 1553 | unsigned int d = vcs->decimation; |
| 1554 | unsigned int bpp = vino_data_formats[vcs->data_format].bpp; |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 1555 | unsigned int lsize; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1556 | |
| 1557 | dprintk("update_line_size(): before: w = %d, d = %d, " |
| 1558 | "line_size = %d\n", w, d, vcs->line_size); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1559 | |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 1560 | /* line size must be multiple of 8 bytes */ |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1561 | lsize = (bpp * (w / d)) & ~7; |
| 1562 | w = (lsize / bpp) * d; |
| 1563 | |
| 1564 | vcs->clipping.right = vcs->clipping.left + w; |
| 1565 | vcs->line_size = lsize; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1566 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1567 | dprintk("update_line_size(): after: w = %d, d = %d, " |
| 1568 | "line_size = %d\n", w, d, vcs->line_size); |
| 1569 | } |
| 1570 | |
| 1571 | /* execute with input_lock locked */ |
| 1572 | static void vino_set_clipping(struct vino_channel_settings *vcs, |
| 1573 | unsigned int x, unsigned int y, |
| 1574 | unsigned int w, unsigned int h) |
| 1575 | { |
| 1576 | unsigned int maxwidth, maxheight; |
| 1577 | unsigned int d; |
| 1578 | |
| 1579 | maxwidth = vino_data_norms[vcs->data_norm].width; |
| 1580 | maxheight = vino_data_norms[vcs->data_norm].height; |
| 1581 | d = vcs->decimation; |
| 1582 | |
| 1583 | y &= ~1; /* odd/even fields */ |
| 1584 | |
| 1585 | if (x > maxwidth) { |
| 1586 | x = 0; |
| 1587 | } |
| 1588 | if (y > maxheight) { |
| 1589 | y = 0; |
| 1590 | } |
| 1591 | |
| 1592 | if (((w / d) < VINO_MIN_WIDTH) |
| 1593 | || ((h / d) < VINO_MIN_HEIGHT)) { |
| 1594 | w = VINO_MIN_WIDTH * d; |
| 1595 | h = VINO_MIN_HEIGHT * d; |
| 1596 | } |
| 1597 | |
| 1598 | if ((x + w) > maxwidth) { |
| 1599 | w = maxwidth - x; |
| 1600 | if ((w / d) < VINO_MIN_WIDTH) |
| 1601 | x = maxwidth - VINO_MIN_WIDTH * d; |
| 1602 | } |
| 1603 | if ((y + h) > maxheight) { |
| 1604 | h = maxheight - y; |
| 1605 | if ((h / d) < VINO_MIN_HEIGHT) |
| 1606 | y = maxheight - VINO_MIN_HEIGHT * d; |
| 1607 | } |
| 1608 | |
| 1609 | vcs->clipping.left = x; |
| 1610 | vcs->clipping.top = y; |
| 1611 | vcs->clipping.right = x + w; |
| 1612 | vcs->clipping.bottom = y + h; |
| 1613 | |
| 1614 | vino_update_line_size(vcs); |
| 1615 | |
| 1616 | dprintk("clipping %d, %d, %d, %d / %d - %d\n", |
| 1617 | vcs->clipping.left, vcs->clipping.top, vcs->clipping.right, |
| 1618 | vcs->clipping.bottom, vcs->decimation, vcs->line_size); |
| 1619 | } |
| 1620 | |
| 1621 | /* execute with input_lock locked */ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1622 | static inline void vino_set_default_clipping(struct vino_channel_settings *vcs) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1623 | { |
| 1624 | vino_set_clipping(vcs, 0, 0, vino_data_norms[vcs->data_norm].width, |
| 1625 | vino_data_norms[vcs->data_norm].height); |
| 1626 | } |
| 1627 | |
| 1628 | /* execute with input_lock locked */ |
| 1629 | static void vino_set_scaling(struct vino_channel_settings *vcs, |
| 1630 | unsigned int w, unsigned int h) |
| 1631 | { |
| 1632 | unsigned int x, y, curw, curh, d; |
| 1633 | |
| 1634 | x = vcs->clipping.left; |
| 1635 | y = vcs->clipping.top; |
| 1636 | curw = vcs->clipping.right - vcs->clipping.left; |
| 1637 | curh = vcs->clipping.bottom - vcs->clipping.top; |
| 1638 | |
| 1639 | d = max(curw / w, curh / h); |
| 1640 | |
| 1641 | dprintk("scaling w: %d, h: %d, curw: %d, curh: %d, d: %d\n", |
| 1642 | w, h, curw, curh, d); |
| 1643 | |
| 1644 | if (d < 1) { |
| 1645 | d = 1; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1646 | } else if (d > 8) { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1647 | d = 8; |
| 1648 | } |
| 1649 | |
| 1650 | vcs->decimation = d; |
| 1651 | vino_set_clipping(vcs, x, y, w * d, h * d); |
| 1652 | |
| 1653 | dprintk("scaling %d, %d, %d, %d / %d - %d\n", vcs->clipping.left, |
| 1654 | vcs->clipping.top, vcs->clipping.right, vcs->clipping.bottom, |
| 1655 | vcs->decimation, vcs->line_size); |
| 1656 | } |
| 1657 | |
| 1658 | /* execute with input_lock locked */ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1659 | static inline void vino_set_default_scaling(struct vino_channel_settings *vcs) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1660 | { |
| 1661 | vino_set_scaling(vcs, vcs->clipping.right - vcs->clipping.left, |
| 1662 | vcs->clipping.bottom - vcs->clipping.top); |
| 1663 | } |
| 1664 | |
| 1665 | /* execute with input_lock locked */ |
| 1666 | static void vino_set_framerate(struct vino_channel_settings *vcs, |
| 1667 | unsigned int fps) |
| 1668 | { |
| 1669 | unsigned int mask; |
| 1670 | |
| 1671 | switch (vcs->data_norm) { |
| 1672 | case VINO_DATA_NORM_NTSC: |
| 1673 | case VINO_DATA_NORM_D1: |
| 1674 | fps = (unsigned int)(fps / 6) * 6; // FIXME: round! |
| 1675 | |
| 1676 | if (fps < vino_data_norms[vcs->data_norm].fps_min) |
| 1677 | fps = vino_data_norms[vcs->data_norm].fps_min; |
| 1678 | if (fps > vino_data_norms[vcs->data_norm].fps_max) |
| 1679 | fps = vino_data_norms[vcs->data_norm].fps_max; |
| 1680 | |
| 1681 | switch (fps) { |
| 1682 | case 6: |
| 1683 | mask = 0x003; |
| 1684 | break; |
| 1685 | case 12: |
| 1686 | mask = 0x0c3; |
| 1687 | break; |
| 1688 | case 18: |
| 1689 | mask = 0x333; |
| 1690 | break; |
| 1691 | case 24: |
| 1692 | mask = 0x3ff; |
| 1693 | break; |
| 1694 | case 30: |
| 1695 | mask = 0xfff; |
| 1696 | break; |
| 1697 | default: |
| 1698 | mask = VINO_FRAMERT_FULL; |
| 1699 | } |
| 1700 | vcs->framert_reg = VINO_FRAMERT_RT(mask); |
| 1701 | break; |
| 1702 | case VINO_DATA_NORM_PAL: |
| 1703 | case VINO_DATA_NORM_SECAM: |
| 1704 | fps = (unsigned int)(fps / 5) * 5; // FIXME: round! |
| 1705 | |
| 1706 | if (fps < vino_data_norms[vcs->data_norm].fps_min) |
| 1707 | fps = vino_data_norms[vcs->data_norm].fps_min; |
| 1708 | if (fps > vino_data_norms[vcs->data_norm].fps_max) |
| 1709 | fps = vino_data_norms[vcs->data_norm].fps_max; |
| 1710 | |
| 1711 | switch (fps) { |
| 1712 | case 5: |
| 1713 | mask = 0x003; |
| 1714 | break; |
| 1715 | case 10: |
| 1716 | mask = 0x0c3; |
| 1717 | break; |
| 1718 | case 15: |
| 1719 | mask = 0x333; |
| 1720 | break; |
| 1721 | case 20: |
| 1722 | mask = 0x0ff; |
| 1723 | break; |
| 1724 | case 25: |
| 1725 | mask = 0x3ff; |
| 1726 | break; |
| 1727 | default: |
| 1728 | mask = VINO_FRAMERT_FULL; |
| 1729 | } |
| 1730 | vcs->framert_reg = VINO_FRAMERT_RT(mask) | VINO_FRAMERT_PAL; |
| 1731 | break; |
| 1732 | } |
| 1733 | |
| 1734 | vcs->fps = fps; |
| 1735 | } |
| 1736 | |
| 1737 | /* execute with input_lock locked */ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1738 | static inline void vino_set_default_framerate(struct |
| 1739 | vino_channel_settings *vcs) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1740 | { |
| 1741 | vino_set_framerate(vcs, vino_data_norms[vcs->data_norm].fps_max); |
| 1742 | } |
| 1743 | |
| 1744 | /* |
| 1745 | * Prepare VINO for DMA transfer... |
| 1746 | * (execute only with vino_lock and input_lock locked) |
| 1747 | */ |
| 1748 | static int vino_dma_setup(struct vino_channel_settings *vcs, |
| 1749 | struct vino_framebuffer *fb) |
| 1750 | { |
| 1751 | u32 ctrl, intr; |
| 1752 | struct sgi_vino_channel *ch; |
| 1753 | const struct vino_data_norm *norm; |
| 1754 | |
| 1755 | dprintk("vino_dma_setup():\n"); |
| 1756 | |
| 1757 | vcs->field = 0; |
| 1758 | fb->frame_counter = 0; |
| 1759 | |
| 1760 | ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; |
| 1761 | norm = &vino_data_norms[vcs->data_norm]; |
| 1762 | |
| 1763 | ch->page_index = 0; |
| 1764 | ch->line_count = 0; |
| 1765 | |
| 1766 | /* VINO line size register is set 8 bytes less than actual */ |
| 1767 | ch->line_size = vcs->line_size - 8; |
| 1768 | |
| 1769 | /* let VINO know where to transfer data */ |
| 1770 | ch->start_desc_tbl = fb->desc_table.dma; |
| 1771 | ch->next_4_desc = fb->desc_table.dma; |
| 1772 | |
| 1773 | /* give vino time to fetch the first four descriptors, 5 usec |
| 1774 | * should be more than enough time */ |
| 1775 | udelay(VINO_DESC_FETCH_DELAY); |
| 1776 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1777 | dprintk("vino_dma_setup(): start desc = %08x, next 4 desc = %08x\n", |
| 1778 | ch->start_desc_tbl, ch->next_4_desc); |
| 1779 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1780 | /* set the alpha register */ |
| 1781 | ch->alpha = vcs->alpha; |
| 1782 | |
| 1783 | /* set clipping registers */ |
| 1784 | ch->clip_start = VINO_CLIP_ODD(norm->odd.top + vcs->clipping.top / 2) | |
| 1785 | VINO_CLIP_EVEN(norm->even.top + |
| 1786 | vcs->clipping.top / 2) | |
| 1787 | VINO_CLIP_X(vcs->clipping.left); |
| 1788 | ch->clip_end = VINO_CLIP_ODD(norm->odd.top + |
| 1789 | vcs->clipping.bottom / 2 - 1) | |
| 1790 | VINO_CLIP_EVEN(norm->even.top + |
| 1791 | vcs->clipping.bottom / 2 - 1) | |
| 1792 | VINO_CLIP_X(vcs->clipping.right); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1793 | |
| 1794 | /* set the size of actual content in the buffer (DECIMATION !) */ |
| 1795 | fb->data_size = ((vcs->clipping.right - vcs->clipping.left) / |
| 1796 | vcs->decimation) * |
| 1797 | ((vcs->clipping.bottom - vcs->clipping.top) / |
| 1798 | vcs->decimation) * |
| 1799 | vino_data_formats[vcs->data_format].bpp; |
| 1800 | |
| 1801 | ch->frame_rate = vcs->framert_reg; |
| 1802 | |
| 1803 | ctrl = vino->control; |
| 1804 | intr = vino->intr_status; |
| 1805 | |
| 1806 | if (vcs->channel == VINO_CHANNEL_A) { |
| 1807 | /* All interrupt conditions for this channel was cleared |
| 1808 | * so clear the interrupt status register and enable |
| 1809 | * interrupts */ |
| 1810 | intr &= ~VINO_INTSTAT_A; |
| 1811 | ctrl |= VINO_CTRL_A_INT; |
| 1812 | |
| 1813 | /* enable synchronization */ |
| 1814 | ctrl |= VINO_CTRL_A_SYNC_ENBL; |
| 1815 | |
| 1816 | /* enable frame assembly */ |
| 1817 | ctrl |= VINO_CTRL_A_INTERLEAVE_ENBL; |
| 1818 | |
| 1819 | /* set decimation used */ |
| 1820 | if (vcs->decimation < 2) |
| 1821 | ctrl &= ~VINO_CTRL_A_DEC_ENBL; |
| 1822 | else { |
| 1823 | ctrl |= VINO_CTRL_A_DEC_ENBL; |
| 1824 | ctrl &= ~VINO_CTRL_A_DEC_SCALE_MASK; |
| 1825 | ctrl |= (vcs->decimation - 1) << |
| 1826 | VINO_CTRL_A_DEC_SCALE_SHIFT; |
| 1827 | } |
| 1828 | |
| 1829 | /* select input interface */ |
| 1830 | if (vcs->input == VINO_INPUT_D1) |
| 1831 | ctrl |= VINO_CTRL_A_SELECT; |
| 1832 | else |
| 1833 | ctrl &= ~VINO_CTRL_A_SELECT; |
| 1834 | |
| 1835 | /* palette */ |
| 1836 | ctrl &= ~(VINO_CTRL_A_LUMA_ONLY | VINO_CTRL_A_RGB | |
| 1837 | VINO_CTRL_A_DITHER); |
| 1838 | } else { |
| 1839 | intr &= ~VINO_INTSTAT_B; |
| 1840 | ctrl |= VINO_CTRL_B_INT; |
| 1841 | |
| 1842 | ctrl |= VINO_CTRL_B_SYNC_ENBL; |
| 1843 | ctrl |= VINO_CTRL_B_INTERLEAVE_ENBL; |
| 1844 | |
| 1845 | if (vcs->decimation < 2) |
| 1846 | ctrl &= ~VINO_CTRL_B_DEC_ENBL; |
| 1847 | else { |
| 1848 | ctrl |= VINO_CTRL_B_DEC_ENBL; |
| 1849 | ctrl &= ~VINO_CTRL_B_DEC_SCALE_MASK; |
| 1850 | ctrl |= (vcs->decimation - 1) << |
| 1851 | VINO_CTRL_B_DEC_SCALE_SHIFT; |
| 1852 | |
| 1853 | } |
| 1854 | if (vcs->input == VINO_INPUT_D1) |
| 1855 | ctrl |= VINO_CTRL_B_SELECT; |
| 1856 | else |
| 1857 | ctrl &= ~VINO_CTRL_B_SELECT; |
| 1858 | |
| 1859 | ctrl &= ~(VINO_CTRL_B_LUMA_ONLY | VINO_CTRL_B_RGB | |
| 1860 | VINO_CTRL_B_DITHER); |
| 1861 | } |
| 1862 | |
| 1863 | /* set palette */ |
| 1864 | fb->data_format = vcs->data_format; |
| 1865 | |
| 1866 | switch (vcs->data_format) { |
| 1867 | case VINO_DATA_FMT_GREY: |
| 1868 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? |
| 1869 | VINO_CTRL_A_LUMA_ONLY : VINO_CTRL_B_LUMA_ONLY; |
| 1870 | break; |
| 1871 | case VINO_DATA_FMT_RGB32: |
| 1872 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? |
| 1873 | VINO_CTRL_A_RGB : VINO_CTRL_B_RGB; |
| 1874 | break; |
| 1875 | case VINO_DATA_FMT_YUV: |
| 1876 | /* nothing needs to be done */ |
| 1877 | break; |
| 1878 | case VINO_DATA_FMT_RGB332: |
| 1879 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? |
| 1880 | VINO_CTRL_A_RGB | VINO_CTRL_A_DITHER : |
| 1881 | VINO_CTRL_B_RGB | VINO_CTRL_B_DITHER; |
| 1882 | break; |
| 1883 | } |
| 1884 | |
| 1885 | vino->intr_status = intr; |
| 1886 | vino->control = ctrl; |
| 1887 | |
| 1888 | return 0; |
| 1889 | } |
| 1890 | |
| 1891 | /* (execute only with vino_lock locked) */ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1892 | static inline void vino_dma_start(struct vino_channel_settings *vcs) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1893 | { |
| 1894 | u32 ctrl = vino->control; |
| 1895 | |
| 1896 | dprintk("vino_dma_start():\n"); |
| 1897 | ctrl |= (vcs->channel == VINO_CHANNEL_A) ? |
| 1898 | VINO_CTRL_A_DMA_ENBL : VINO_CTRL_B_DMA_ENBL; |
| 1899 | vino->control = ctrl; |
| 1900 | } |
| 1901 | |
| 1902 | /* (execute only with vino_lock locked) */ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1903 | static inline void vino_dma_stop(struct vino_channel_settings *vcs) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1904 | { |
| 1905 | u32 ctrl = vino->control; |
| 1906 | |
| 1907 | ctrl &= (vcs->channel == VINO_CHANNEL_A) ? |
| 1908 | ~VINO_CTRL_A_DMA_ENBL : ~VINO_CTRL_B_DMA_ENBL; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1909 | ctrl &= (vcs->channel == VINO_CHANNEL_A) ? |
| 1910 | ~VINO_CTRL_A_INT : ~VINO_CTRL_B_INT; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1911 | vino->control = ctrl; |
| 1912 | dprintk("vino_dma_stop():\n"); |
| 1913 | } |
| 1914 | |
| 1915 | /* |
| 1916 | * Load dummy page to descriptor registers. This prevents generating of |
| 1917 | * spurious interrupts. (execute only with vino_lock locked) |
| 1918 | */ |
| 1919 | static void vino_clear_interrupt(struct vino_channel_settings *vcs) |
| 1920 | { |
| 1921 | struct sgi_vino_channel *ch; |
| 1922 | |
| 1923 | ch = (vcs->channel == VINO_CHANNEL_A) ? &vino->a : &vino->b; |
| 1924 | |
| 1925 | ch->page_index = 0; |
| 1926 | ch->line_count = 0; |
| 1927 | |
| 1928 | ch->start_desc_tbl = vino_drvdata->dummy_desc_table.dma; |
| 1929 | ch->next_4_desc = vino_drvdata->dummy_desc_table.dma; |
| 1930 | |
| 1931 | udelay(VINO_DESC_FETCH_DELAY); |
| 1932 | dprintk("channel %c clear interrupt condition\n", |
| 1933 | (vcs->channel == VINO_CHANNEL_A) ? 'A':'B'); |
| 1934 | } |
| 1935 | |
| 1936 | static int vino_capture(struct vino_channel_settings *vcs, |
| 1937 | struct vino_framebuffer *fb) |
| 1938 | { |
| 1939 | int err = 0; |
| 1940 | unsigned long flags, flags2; |
| 1941 | |
| 1942 | spin_lock_irqsave(&fb->state_lock, flags); |
| 1943 | |
| 1944 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) |
| 1945 | err = -EBUSY; |
| 1946 | fb->state = VINO_FRAMEBUFFER_IN_USE; |
| 1947 | |
| 1948 | spin_unlock_irqrestore(&fb->state_lock, flags); |
| 1949 | |
| 1950 | if (err) |
| 1951 | return err; |
| 1952 | |
| 1953 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); |
| 1954 | spin_lock_irqsave(&vino_drvdata->input_lock, flags2); |
| 1955 | |
| 1956 | vino_dma_setup(vcs, fb); |
| 1957 | vino_dma_start(vcs); |
| 1958 | |
| 1959 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags2); |
| 1960 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); |
| 1961 | |
| 1962 | return err; |
| 1963 | } |
| 1964 | |
| 1965 | static |
| 1966 | struct vino_framebuffer *vino_capture_enqueue(struct |
| 1967 | vino_channel_settings *vcs, |
| 1968 | unsigned int index) |
| 1969 | { |
| 1970 | struct vino_framebuffer *fb; |
| 1971 | unsigned long flags; |
| 1972 | |
| 1973 | dprintk("vino_capture_enqueue():\n"); |
| 1974 | |
| 1975 | spin_lock_irqsave(&vcs->capture_lock, flags); |
| 1976 | |
| 1977 | fb = vino_queue_add(&vcs->fb_queue, index); |
| 1978 | if (fb == NULL) { |
| 1979 | dprintk("vino_capture_enqueue(): vino_queue_add() failed, " |
| 1980 | "queue full?\n"); |
| 1981 | goto out; |
| 1982 | } |
| 1983 | out: |
| 1984 | spin_unlock_irqrestore(&vcs->capture_lock, flags); |
| 1985 | |
| 1986 | return fb; |
| 1987 | } |
| 1988 | |
| 1989 | static int vino_capture_next(struct vino_channel_settings *vcs, int start) |
| 1990 | { |
| 1991 | struct vino_framebuffer *fb; |
| 1992 | unsigned int incoming, id; |
| 1993 | int err = 0; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 1994 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1995 | |
| 1996 | dprintk("vino_capture_next():\n"); |
| 1997 | |
| 1998 | spin_lock_irqsave(&vcs->capture_lock, flags); |
| 1999 | |
| 2000 | if (start) { |
| 2001 | /* start capture only if capture isn't in progress already */ |
| 2002 | if (vcs->capturing) { |
| 2003 | spin_unlock_irqrestore(&vcs->capture_lock, flags); |
| 2004 | return 0; |
| 2005 | } |
| 2006 | |
| 2007 | } else { |
| 2008 | /* capture next frame: |
| 2009 | * stop capture if capturing is not set */ |
| 2010 | if (!vcs->capturing) { |
| 2011 | spin_unlock_irqrestore(&vcs->capture_lock, flags); |
| 2012 | return 0; |
| 2013 | } |
| 2014 | } |
| 2015 | |
| 2016 | err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); |
| 2017 | if (err) { |
| 2018 | dprintk("vino_capture_next(): vino_queue_get_incoming() " |
| 2019 | "failed\n"); |
| 2020 | err = -EINVAL; |
| 2021 | goto out; |
| 2022 | } |
| 2023 | if (incoming == 0) { |
| 2024 | dprintk("vino_capture_next(): no buffers available\n"); |
| 2025 | goto out; |
| 2026 | } |
| 2027 | |
| 2028 | fb = vino_queue_peek(&vcs->fb_queue, &id); |
| 2029 | if (fb == NULL) { |
| 2030 | dprintk("vino_capture_next(): vino_queue_peek() failed\n"); |
| 2031 | err = -EINVAL; |
| 2032 | goto out; |
| 2033 | } |
| 2034 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2035 | if (start) { |
| 2036 | vcs->capturing = 1; |
| 2037 | } |
| 2038 | |
| 2039 | spin_unlock_irqrestore(&vcs->capture_lock, flags); |
| 2040 | |
| 2041 | err = vino_capture(vcs, fb); |
| 2042 | |
| 2043 | return err; |
| 2044 | |
| 2045 | out: |
| 2046 | vcs->capturing = 0; |
| 2047 | spin_unlock_irqrestore(&vcs->capture_lock, flags); |
| 2048 | |
| 2049 | return err; |
| 2050 | } |
| 2051 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2052 | static inline int vino_is_capturing(struct vino_channel_settings *vcs) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2053 | { |
| 2054 | int ret; |
| 2055 | unsigned long flags; |
| 2056 | |
| 2057 | spin_lock_irqsave(&vcs->capture_lock, flags); |
| 2058 | |
| 2059 | ret = vcs->capturing; |
| 2060 | |
| 2061 | spin_unlock_irqrestore(&vcs->capture_lock, flags); |
| 2062 | |
| 2063 | return ret; |
| 2064 | } |
| 2065 | |
| 2066 | /* waits until a frame is captured */ |
| 2067 | static int vino_wait_for_frame(struct vino_channel_settings *vcs) |
| 2068 | { |
| 2069 | wait_queue_t wait; |
| 2070 | int err = 0; |
| 2071 | |
| 2072 | dprintk("vino_wait_for_frame():\n"); |
| 2073 | |
| 2074 | init_waitqueue_entry(&wait, current); |
| 2075 | /* add ourselves into wait queue */ |
| 2076 | add_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2077 | |
| 2078 | /* to ensure that schedule_timeout will return immediately |
Robert P. J. Day | f3a43d3 | 2007-07-16 10:46:42 -0300 | [diff] [blame] | 2079 | * if VINO interrupt was triggered meanwhile */ |
Mauro Carvalho Chehab | 818ca47 | 2007-07-17 16:29:07 -0300 | [diff] [blame] | 2080 | schedule_timeout_interruptible(msecs_to_jiffies(100)); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2081 | |
| 2082 | if (signal_pending(current)) |
| 2083 | err = -EINTR; |
| 2084 | |
| 2085 | remove_wait_queue(&vcs->fb_queue.frame_wait_queue, &wait); |
| 2086 | |
| 2087 | dprintk("vino_wait_for_frame(): waiting for frame %s\n", |
| 2088 | err ? "failed" : "ok"); |
| 2089 | |
| 2090 | return err; |
| 2091 | } |
| 2092 | |
| 2093 | /* the function assumes that PAGE_SIZE % 4 == 0 */ |
| 2094 | static void vino_convert_to_rgba(struct vino_framebuffer *fb) { |
| 2095 | unsigned char *pageptr; |
| 2096 | unsigned int page, i; |
| 2097 | unsigned char a; |
| 2098 | |
| 2099 | for (page = 0; page < fb->desc_table.page_count; page++) { |
| 2100 | pageptr = (unsigned char *)fb->desc_table.virtual[page]; |
| 2101 | |
| 2102 | for (i = 0; i < PAGE_SIZE; i += 4) { |
| 2103 | a = pageptr[0]; |
| 2104 | pageptr[0] = pageptr[3]; |
| 2105 | pageptr[1] = pageptr[2]; |
| 2106 | pageptr[2] = pageptr[1]; |
| 2107 | pageptr[3] = a; |
| 2108 | pageptr += 4; |
| 2109 | } |
| 2110 | } |
| 2111 | } |
| 2112 | |
| 2113 | /* checks if the buffer is in correct state and syncs data */ |
| 2114 | static int vino_check_buffer(struct vino_channel_settings *vcs, |
| 2115 | struct vino_framebuffer *fb) |
| 2116 | { |
| 2117 | int err = 0; |
| 2118 | unsigned long flags; |
| 2119 | |
| 2120 | dprintk("vino_check_buffer():\n"); |
| 2121 | |
| 2122 | spin_lock_irqsave(&fb->state_lock, flags); |
| 2123 | switch (fb->state) { |
| 2124 | case VINO_FRAMEBUFFER_IN_USE: |
| 2125 | err = -EIO; |
| 2126 | break; |
| 2127 | case VINO_FRAMEBUFFER_READY: |
| 2128 | vino_sync_buffer(fb); |
| 2129 | fb->state = VINO_FRAMEBUFFER_UNUSED; |
| 2130 | break; |
| 2131 | default: |
| 2132 | err = -EINVAL; |
| 2133 | } |
| 2134 | spin_unlock_irqrestore(&fb->state_lock, flags); |
| 2135 | |
| 2136 | if (!err) { |
| 2137 | if (vino_pixel_conversion |
| 2138 | && (fb->data_format == VINO_DATA_FMT_RGB32)) { |
| 2139 | vino_convert_to_rgba(fb); |
| 2140 | } |
| 2141 | } else if (err && (err != -EINVAL)) { |
| 2142 | dprintk("vino_check_buffer(): buffer not ready\n"); |
| 2143 | |
| 2144 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); |
| 2145 | vino_dma_stop(vcs); |
| 2146 | vino_clear_interrupt(vcs); |
| 2147 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); |
| 2148 | } |
| 2149 | |
| 2150 | return err; |
| 2151 | } |
| 2152 | |
| 2153 | /* forcefully terminates capture */ |
| 2154 | static void vino_capture_stop(struct vino_channel_settings *vcs) |
| 2155 | { |
| 2156 | unsigned int incoming = 0, outgoing = 0, id; |
| 2157 | unsigned long flags, flags2; |
| 2158 | |
| 2159 | dprintk("vino_capture_stop():\n"); |
| 2160 | |
| 2161 | spin_lock_irqsave(&vcs->capture_lock, flags); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2162 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2163 | /* unset capturing to stop queue processing */ |
| 2164 | vcs->capturing = 0; |
| 2165 | |
| 2166 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags2); |
| 2167 | |
| 2168 | vino_dma_stop(vcs); |
| 2169 | vino_clear_interrupt(vcs); |
| 2170 | |
| 2171 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags2); |
| 2172 | |
| 2173 | /* remove all items from the queue */ |
| 2174 | if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { |
| 2175 | dprintk("vino_capture_stop(): " |
| 2176 | "vino_queue_get_incoming() failed\n"); |
| 2177 | goto out; |
| 2178 | } |
| 2179 | while (incoming > 0) { |
| 2180 | vino_queue_transfer(&vcs->fb_queue); |
| 2181 | |
| 2182 | if (vino_queue_get_incoming(&vcs->fb_queue, &incoming)) { |
| 2183 | dprintk("vino_capture_stop(): " |
| 2184 | "vino_queue_get_incoming() failed\n"); |
| 2185 | goto out; |
| 2186 | } |
| 2187 | } |
| 2188 | |
| 2189 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { |
| 2190 | dprintk("vino_capture_stop(): " |
| 2191 | "vino_queue_get_outgoing() failed\n"); |
| 2192 | goto out; |
| 2193 | } |
| 2194 | while (outgoing > 0) { |
| 2195 | vino_queue_remove(&vcs->fb_queue, &id); |
| 2196 | |
| 2197 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { |
| 2198 | dprintk("vino_capture_stop(): " |
| 2199 | "vino_queue_get_outgoing() failed\n"); |
| 2200 | goto out; |
| 2201 | } |
| 2202 | } |
| 2203 | |
| 2204 | out: |
| 2205 | spin_unlock_irqrestore(&vcs->capture_lock, flags); |
| 2206 | } |
| 2207 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2208 | #if 0 |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2209 | static int vino_capture_failed(struct vino_channel_settings *vcs) |
| 2210 | { |
| 2211 | struct vino_framebuffer *fb; |
| 2212 | unsigned long flags; |
| 2213 | unsigned int i; |
| 2214 | int ret; |
| 2215 | |
| 2216 | dprintk("vino_capture_failed():\n"); |
| 2217 | |
| 2218 | spin_lock_irqsave(&vino_drvdata->vino_lock, flags); |
| 2219 | |
| 2220 | vino_dma_stop(vcs); |
| 2221 | vino_clear_interrupt(vcs); |
| 2222 | |
| 2223 | spin_unlock_irqrestore(&vino_drvdata->vino_lock, flags); |
| 2224 | |
| 2225 | ret = vino_queue_get_incoming(&vcs->fb_queue, &i); |
| 2226 | if (ret == VINO_QUEUE_ERROR) { |
| 2227 | dprintk("vino_queue_get_incoming() failed\n"); |
| 2228 | return -EINVAL; |
| 2229 | } |
| 2230 | if (i == 0) { |
| 2231 | /* no buffers to process */ |
| 2232 | return 0; |
| 2233 | } |
| 2234 | |
| 2235 | fb = vino_queue_peek(&vcs->fb_queue, &i); |
| 2236 | if (fb == NULL) { |
| 2237 | dprintk("vino_queue_peek() failed\n"); |
| 2238 | return -EINVAL; |
| 2239 | } |
| 2240 | |
| 2241 | spin_lock_irqsave(&fb->state_lock, flags); |
| 2242 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) { |
| 2243 | fb->state = VINO_FRAMEBUFFER_UNUSED; |
| 2244 | vino_queue_transfer(&vcs->fb_queue); |
| 2245 | vino_queue_remove(&vcs->fb_queue, &i); |
| 2246 | /* we should actually discard the newest frame, |
| 2247 | * but who cares ... */ |
| 2248 | } |
| 2249 | spin_unlock_irqrestore(&fb->state_lock, flags); |
| 2250 | |
| 2251 | return 0; |
| 2252 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2253 | #endif |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2254 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2255 | static void vino_skip_frame(struct vino_channel_settings *vcs) |
| 2256 | { |
| 2257 | struct vino_framebuffer *fb; |
| 2258 | unsigned long flags; |
| 2259 | unsigned int id; |
| 2260 | |
| 2261 | spin_lock_irqsave(&vcs->capture_lock, flags); |
| 2262 | fb = vino_queue_peek(&vcs->fb_queue, &id); |
| 2263 | if (!fb) { |
| 2264 | spin_unlock_irqrestore(&vcs->capture_lock, flags); |
| 2265 | dprintk("vino_skip_frame(): vino_queue_peek() failed!\n"); |
| 2266 | return; |
| 2267 | } |
| 2268 | spin_unlock_irqrestore(&vcs->capture_lock, flags); |
| 2269 | |
| 2270 | spin_lock_irqsave(&fb->state_lock, flags); |
| 2271 | fb->state = VINO_FRAMEBUFFER_UNUSED; |
| 2272 | spin_unlock_irqrestore(&fb->state_lock, flags); |
| 2273 | |
| 2274 | vino_capture_next(vcs, 0); |
| 2275 | } |
| 2276 | |
| 2277 | static void vino_frame_done(struct vino_channel_settings *vcs) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2278 | { |
| 2279 | struct vino_framebuffer *fb; |
| 2280 | unsigned long flags; |
| 2281 | |
| 2282 | spin_lock_irqsave(&vcs->capture_lock, flags); |
| 2283 | fb = vino_queue_transfer(&vcs->fb_queue); |
| 2284 | if (!fb) { |
| 2285 | spin_unlock_irqrestore(&vcs->capture_lock, flags); |
| 2286 | dprintk("vino_frame_done(): vino_queue_transfer() failed!\n"); |
| 2287 | return; |
| 2288 | } |
| 2289 | spin_unlock_irqrestore(&vcs->capture_lock, flags); |
| 2290 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2291 | fb->frame_counter = vcs->int_data.frame_counter; |
| 2292 | memcpy(&fb->timestamp, &vcs->int_data.timestamp, |
| 2293 | sizeof(struct timeval)); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2294 | |
| 2295 | spin_lock_irqsave(&fb->state_lock, flags); |
| 2296 | if (fb->state == VINO_FRAMEBUFFER_IN_USE) |
| 2297 | fb->state = VINO_FRAMEBUFFER_READY; |
| 2298 | spin_unlock_irqrestore(&fb->state_lock, flags); |
| 2299 | |
| 2300 | wake_up(&vcs->fb_queue.frame_wait_queue); |
| 2301 | |
| 2302 | vino_capture_next(vcs, 0); |
| 2303 | } |
| 2304 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2305 | static void vino_capture_tasklet(unsigned long channel) { |
| 2306 | struct vino_channel_settings *vcs; |
| 2307 | |
| 2308 | vcs = (channel == VINO_CHANNEL_A) |
| 2309 | ? &vino_drvdata->a : &vino_drvdata->b; |
| 2310 | |
| 2311 | if (vcs->int_data.skip) |
| 2312 | vcs->int_data.skip_count++; |
| 2313 | |
| 2314 | if (vcs->int_data.skip && (vcs->int_data.skip_count |
| 2315 | <= VINO_MAX_FRAME_SKIP_COUNT)) { |
| 2316 | vino_skip_frame(vcs); |
| 2317 | } else { |
| 2318 | vcs->int_data.skip_count = 0; |
| 2319 | vino_frame_done(vcs); |
| 2320 | } |
| 2321 | } |
| 2322 | |
David Howells | 7d12e78 | 2006-10-05 14:55:46 +0100 | [diff] [blame] | 2323 | static irqreturn_t vino_interrupt(int irq, void *dev_id) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2324 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2325 | u32 ctrl, intr; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2326 | unsigned int fc_a, fc_b; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2327 | int handled_a = 0, skip_a = 0, done_a = 0; |
| 2328 | int handled_b = 0, skip_b = 0, done_b = 0; |
| 2329 | |
| 2330 | #ifdef VINO_DEBUG_INT |
| 2331 | int loop = 0; |
| 2332 | unsigned int line_count = vino->a.line_count, |
| 2333 | page_index = vino->a.page_index, |
| 2334 | field_counter = vino->a.field_counter, |
| 2335 | start_desc_tbl = vino->a.start_desc_tbl, |
| 2336 | next_4_desc = vino->a.next_4_desc; |
| 2337 | unsigned int line_count_2, |
| 2338 | page_index_2, |
| 2339 | field_counter_2, |
| 2340 | start_desc_tbl_2, |
| 2341 | next_4_desc_2; |
| 2342 | #endif |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2343 | |
| 2344 | spin_lock(&vino_drvdata->vino_lock); |
| 2345 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2346 | while ((intr = vino->intr_status)) { |
| 2347 | fc_a = vino->a.field_counter >> 1; |
| 2348 | fc_b = vino->b.field_counter >> 1; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2349 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2350 | /* handle error-interrupts in some special way ? |
| 2351 | * --> skips frames */ |
| 2352 | if (intr & VINO_INTSTAT_A) { |
| 2353 | if (intr & VINO_INTSTAT_A_EOF) { |
| 2354 | vino_drvdata->a.field++; |
| 2355 | if (vino_drvdata->a.field > 1) { |
| 2356 | vino_dma_stop(&vino_drvdata->a); |
| 2357 | vino_clear_interrupt(&vino_drvdata->a); |
| 2358 | vino_drvdata->a.field = 0; |
| 2359 | done_a = 1; |
| 2360 | } else { |
| 2361 | if (vino->a.page_index |
| 2362 | != vino_drvdata->a.line_size) { |
| 2363 | vino->a.line_count = 0; |
| 2364 | vino->a.page_index = |
| 2365 | vino_drvdata-> |
| 2366 | a.line_size; |
| 2367 | vino->a.next_4_desc = |
| 2368 | vino->a.start_desc_tbl; |
| 2369 | } |
| 2370 | } |
| 2371 | dprintk("channel A end-of-field " |
| 2372 | "interrupt: %04x\n", intr); |
| 2373 | } else { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2374 | vino_dma_stop(&vino_drvdata->a); |
| 2375 | vino_clear_interrupt(&vino_drvdata->a); |
| 2376 | vino_drvdata->a.field = 0; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2377 | skip_a = 1; |
| 2378 | dprintk("channel A error interrupt: %04x\n", |
| 2379 | intr); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2380 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2381 | |
| 2382 | #ifdef VINO_DEBUG_INT |
| 2383 | line_count_2 = vino->a.line_count; |
| 2384 | page_index_2 = vino->a.page_index; |
| 2385 | field_counter_2 = vino->a.field_counter; |
| 2386 | start_desc_tbl_2 = vino->a.start_desc_tbl; |
| 2387 | next_4_desc_2 = vino->a.next_4_desc; |
| 2388 | |
| 2389 | printk("intr = %04x, loop = %d, field = %d\n", |
| 2390 | intr, loop, vino_drvdata->a.field); |
| 2391 | printk("1- line count = %04d, page index = %04d, " |
| 2392 | "start = %08x, next = %08x\n" |
| 2393 | " fieldc = %d, framec = %d\n", |
| 2394 | line_count, page_index, start_desc_tbl, |
| 2395 | next_4_desc, field_counter, fc_a); |
| 2396 | printk("12-line count = %04d, page index = %04d, " |
| 2397 | " start = %08x, next = %08x\n", |
| 2398 | line_count_2, page_index_2, start_desc_tbl_2, |
| 2399 | next_4_desc_2); |
| 2400 | |
| 2401 | if (done_a) |
| 2402 | printk("\n"); |
| 2403 | #endif |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2404 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2405 | |
| 2406 | if (intr & VINO_INTSTAT_B) { |
| 2407 | if (intr & VINO_INTSTAT_B_EOF) { |
| 2408 | vino_drvdata->b.field++; |
| 2409 | if (vino_drvdata->b.field > 1) { |
| 2410 | vino_dma_stop(&vino_drvdata->b); |
| 2411 | vino_clear_interrupt(&vino_drvdata->b); |
| 2412 | vino_drvdata->b.field = 0; |
| 2413 | done_b = 1; |
| 2414 | } |
| 2415 | dprintk("channel B end-of-field " |
| 2416 | "interrupt: %04x\n", intr); |
| 2417 | } else { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2418 | vino_dma_stop(&vino_drvdata->b); |
| 2419 | vino_clear_interrupt(&vino_drvdata->b); |
| 2420 | vino_drvdata->b.field = 0; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2421 | skip_b = 1; |
| 2422 | dprintk("channel B error interrupt: %04x\n", |
| 2423 | intr); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2424 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2425 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2426 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2427 | /* Always remember to clear interrupt status. |
| 2428 | * Disable VINO interrupts while we do this. */ |
| 2429 | ctrl = vino->control; |
| 2430 | vino->control = ctrl & ~(VINO_CTRL_A_INT | VINO_CTRL_B_INT); |
| 2431 | vino->intr_status = ~intr; |
| 2432 | vino->control = ctrl; |
| 2433 | |
| 2434 | spin_unlock(&vino_drvdata->vino_lock); |
| 2435 | |
| 2436 | if ((!handled_a) && (done_a || skip_a)) { |
| 2437 | if (!skip_a) { |
| 2438 | do_gettimeofday(&vino_drvdata-> |
| 2439 | a.int_data.timestamp); |
| 2440 | vino_drvdata->a.int_data.frame_counter = fc_a; |
| 2441 | } |
| 2442 | vino_drvdata->a.int_data.skip = skip_a; |
| 2443 | |
| 2444 | dprintk("channel A %s, interrupt: %d\n", |
| 2445 | skip_a ? "skipping frame" : "frame done", |
| 2446 | intr); |
| 2447 | tasklet_hi_schedule(&vino_tasklet_a); |
| 2448 | handled_a = 1; |
| 2449 | } |
| 2450 | |
| 2451 | if ((!handled_b) && (done_b || skip_b)) { |
| 2452 | if (!skip_b) { |
| 2453 | do_gettimeofday(&vino_drvdata-> |
| 2454 | b.int_data.timestamp); |
| 2455 | vino_drvdata->b.int_data.frame_counter = fc_b; |
| 2456 | } |
| 2457 | vino_drvdata->b.int_data.skip = skip_b; |
| 2458 | |
| 2459 | dprintk("channel B %s, interrupt: %d\n", |
| 2460 | skip_b ? "skipping frame" : "frame done", |
| 2461 | intr); |
| 2462 | tasklet_hi_schedule(&vino_tasklet_b); |
| 2463 | handled_b = 1; |
| 2464 | } |
| 2465 | |
| 2466 | #ifdef VINO_DEBUG_INT |
| 2467 | loop++; |
| 2468 | #endif |
| 2469 | spin_lock(&vino_drvdata->vino_lock); |
| 2470 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2471 | |
| 2472 | spin_unlock(&vino_drvdata->vino_lock); |
| 2473 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2474 | return IRQ_HANDLED; |
| 2475 | } |
| 2476 | |
| 2477 | /* VINO video input management */ |
| 2478 | |
| 2479 | static int vino_get_saa7191_input(int input) |
| 2480 | { |
| 2481 | switch (input) { |
| 2482 | case VINO_INPUT_COMPOSITE: |
| 2483 | return SAA7191_INPUT_COMPOSITE; |
| 2484 | case VINO_INPUT_SVIDEO: |
| 2485 | return SAA7191_INPUT_SVIDEO; |
| 2486 | default: |
| 2487 | printk(KERN_ERR "VINO: vino_get_saa7191_input(): " |
| 2488 | "invalid input!\n"); |
| 2489 | return -1; |
| 2490 | } |
| 2491 | } |
| 2492 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2493 | static int vino_get_saa7191_norm(unsigned int data_norm) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2494 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2495 | switch (data_norm) { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2496 | case VINO_DATA_NORM_AUTO: |
| 2497 | return SAA7191_NORM_AUTO; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2498 | case VINO_DATA_NORM_AUTO_EXT: |
| 2499 | return SAA7191_NORM_AUTO_EXT; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2500 | case VINO_DATA_NORM_PAL: |
| 2501 | return SAA7191_NORM_PAL; |
| 2502 | case VINO_DATA_NORM_NTSC: |
| 2503 | return SAA7191_NORM_NTSC; |
| 2504 | case VINO_DATA_NORM_SECAM: |
| 2505 | return SAA7191_NORM_SECAM; |
| 2506 | default: |
| 2507 | printk(KERN_ERR "VINO: vino_get_saa7191_norm(): " |
| 2508 | "invalid norm!\n"); |
| 2509 | return -1; |
| 2510 | } |
| 2511 | } |
| 2512 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2513 | static int vino_get_from_saa7191_norm(int saa7191_norm) |
| 2514 | { |
| 2515 | switch (saa7191_norm) { |
| 2516 | case SAA7191_NORM_PAL: |
| 2517 | return VINO_DATA_NORM_PAL; |
| 2518 | case SAA7191_NORM_NTSC: |
| 2519 | return VINO_DATA_NORM_NTSC; |
| 2520 | case SAA7191_NORM_SECAM: |
| 2521 | return VINO_DATA_NORM_SECAM; |
| 2522 | default: |
| 2523 | printk(KERN_ERR "VINO: vino_get_from_saa7191_norm(): " |
| 2524 | "invalid norm!\n"); |
| 2525 | return VINO_DATA_NORM_NONE; |
| 2526 | } |
| 2527 | } |
| 2528 | |
| 2529 | static int vino_saa7191_set_norm(unsigned int *data_norm) |
| 2530 | { |
| 2531 | int saa7191_norm, new_data_norm; |
| 2532 | int err = 0; |
| 2533 | |
| 2534 | saa7191_norm = vino_get_saa7191_norm(*data_norm); |
| 2535 | |
| 2536 | err = i2c_decoder_command(DECODER_SAA7191_SET_NORM, |
| 2537 | &saa7191_norm); |
| 2538 | if (err) |
| 2539 | goto out; |
| 2540 | |
| 2541 | if ((*data_norm == VINO_DATA_NORM_AUTO) |
| 2542 | || (*data_norm == VINO_DATA_NORM_AUTO_EXT)) { |
| 2543 | struct saa7191_status status; |
| 2544 | |
| 2545 | err = i2c_decoder_command(DECODER_SAA7191_GET_STATUS, |
| 2546 | &status); |
| 2547 | if (err) |
| 2548 | goto out; |
| 2549 | |
| 2550 | new_data_norm = |
| 2551 | vino_get_from_saa7191_norm(status.norm); |
| 2552 | if (new_data_norm == VINO_DATA_NORM_NONE) { |
| 2553 | err = -EINVAL; |
| 2554 | goto out; |
| 2555 | } |
| 2556 | |
| 2557 | *data_norm = (unsigned int)new_data_norm; |
| 2558 | } |
| 2559 | |
| 2560 | out: |
| 2561 | return err; |
| 2562 | } |
| 2563 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2564 | /* execute with input_lock locked */ |
| 2565 | static int vino_is_input_owner(struct vino_channel_settings *vcs) |
| 2566 | { |
| 2567 | switch(vcs->input) { |
| 2568 | case VINO_INPUT_COMPOSITE: |
| 2569 | case VINO_INPUT_SVIDEO: |
| 2570 | return (vino_drvdata->decoder.owner == vcs->channel); |
| 2571 | case VINO_INPUT_D1: |
| 2572 | return (vino_drvdata->camera.owner == vcs->channel); |
| 2573 | default: |
| 2574 | return 0; |
| 2575 | } |
| 2576 | } |
| 2577 | |
| 2578 | static int vino_acquire_input(struct vino_channel_settings *vcs) |
| 2579 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2580 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2581 | int ret = 0; |
| 2582 | |
| 2583 | dprintk("vino_acquire_input():\n"); |
| 2584 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2585 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2586 | |
| 2587 | /* First try D1 and then SAA7191 */ |
| 2588 | if (vino_drvdata->camera.driver |
| 2589 | && (vino_drvdata->camera.owner == VINO_NO_CHANNEL)) { |
Jean Delvare | e48d331 | 2008-01-27 18:14:48 +0100 | [diff] [blame] | 2590 | i2c_use_client(vino_drvdata->camera.driver); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2591 | vino_drvdata->camera.owner = vcs->channel; |
| 2592 | vcs->input = VINO_INPUT_D1; |
| 2593 | vcs->data_norm = VINO_DATA_NORM_D1; |
| 2594 | } else if (vino_drvdata->decoder.driver |
| 2595 | && (vino_drvdata->decoder.owner == VINO_NO_CHANNEL)) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2596 | int input, data_norm; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2597 | int saa7191_input; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2598 | |
Jean Delvare | e48d331 | 2008-01-27 18:14:48 +0100 | [diff] [blame] | 2599 | i2c_use_client(vino_drvdata->decoder.driver); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2600 | input = VINO_INPUT_COMPOSITE; |
| 2601 | |
| 2602 | saa7191_input = vino_get_saa7191_input(input); |
| 2603 | ret = i2c_decoder_command(DECODER_SET_INPUT, |
| 2604 | &saa7191_input); |
| 2605 | if (ret) { |
| 2606 | ret = -EINVAL; |
| 2607 | goto out; |
| 2608 | } |
| 2609 | |
| 2610 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
| 2611 | |
| 2612 | /* Don't hold spinlocks while auto-detecting norm |
| 2613 | * as it may take a while... */ |
| 2614 | |
| 2615 | data_norm = VINO_DATA_NORM_AUTO_EXT; |
| 2616 | |
| 2617 | ret = vino_saa7191_set_norm(&data_norm); |
| 2618 | if ((ret == -EBUSY) || (ret == -EAGAIN)) { |
| 2619 | data_norm = VINO_DATA_NORM_PAL; |
| 2620 | ret = vino_saa7191_set_norm(&data_norm); |
| 2621 | } |
| 2622 | |
| 2623 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
| 2624 | |
| 2625 | if (ret) { |
| 2626 | ret = -EINVAL; |
| 2627 | goto out; |
| 2628 | } |
| 2629 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2630 | vino_drvdata->decoder.owner = vcs->channel; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2631 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2632 | vcs->input = input; |
| 2633 | vcs->data_norm = data_norm; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2634 | } else { |
| 2635 | vcs->input = (vcs->channel == VINO_CHANNEL_A) ? |
| 2636 | vino_drvdata->b.input : vino_drvdata->a.input; |
| 2637 | vcs->data_norm = (vcs->channel == VINO_CHANNEL_A) ? |
| 2638 | vino_drvdata->b.data_norm : vino_drvdata->a.data_norm; |
| 2639 | } |
| 2640 | |
| 2641 | if (vcs->input == VINO_INPUT_NONE) { |
| 2642 | ret = -ENODEV; |
| 2643 | goto out; |
| 2644 | } |
| 2645 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2646 | vino_set_default_clipping(vcs); |
| 2647 | vino_set_default_scaling(vcs); |
| 2648 | vino_set_default_framerate(vcs); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2649 | |
| 2650 | dprintk("vino_acquire_input(): %s\n", vino_inputs[vcs->input].name); |
| 2651 | |
| 2652 | out: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2653 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2654 | |
| 2655 | return ret; |
| 2656 | } |
| 2657 | |
| 2658 | static int vino_set_input(struct vino_channel_settings *vcs, int input) |
| 2659 | { |
| 2660 | struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? |
| 2661 | &vino_drvdata->b : &vino_drvdata->a; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2662 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2663 | int ret = 0; |
| 2664 | |
| 2665 | dprintk("vino_set_input():\n"); |
| 2666 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2667 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2668 | |
| 2669 | if (vcs->input == input) |
| 2670 | goto out; |
| 2671 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2672 | switch (input) { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2673 | case VINO_INPUT_COMPOSITE: |
| 2674 | case VINO_INPUT_SVIDEO: |
| 2675 | if (!vino_drvdata->decoder.driver) { |
| 2676 | ret = -EINVAL; |
| 2677 | goto out; |
| 2678 | } |
| 2679 | |
| 2680 | if (vino_drvdata->decoder.owner == VINO_NO_CHANNEL) { |
Jean Delvare | e48d331 | 2008-01-27 18:14:48 +0100 | [diff] [blame] | 2681 | i2c_use_client(vino_drvdata->decoder.driver); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2682 | vino_drvdata->decoder.owner = vcs->channel; |
| 2683 | } |
| 2684 | |
| 2685 | if (vino_drvdata->decoder.owner == vcs->channel) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2686 | int data_norm; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2687 | int saa7191_input; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2688 | |
| 2689 | saa7191_input = vino_get_saa7191_input(input); |
| 2690 | ret = i2c_decoder_command(DECODER_SET_INPUT, |
| 2691 | &saa7191_input); |
| 2692 | if (ret) { |
| 2693 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; |
| 2694 | ret = -EINVAL; |
| 2695 | goto out; |
| 2696 | } |
| 2697 | |
| 2698 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
| 2699 | |
| 2700 | /* Don't hold spinlocks while auto-detecting norm |
| 2701 | * as it may take a while... */ |
| 2702 | |
| 2703 | data_norm = VINO_DATA_NORM_AUTO_EXT; |
| 2704 | |
| 2705 | ret = vino_saa7191_set_norm(&data_norm); |
| 2706 | if ((ret == -EBUSY) || (ret == -EAGAIN)) { |
| 2707 | data_norm = VINO_DATA_NORM_PAL; |
| 2708 | ret = vino_saa7191_set_norm(&data_norm); |
| 2709 | } |
| 2710 | |
| 2711 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
| 2712 | |
| 2713 | if (ret) { |
| 2714 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; |
| 2715 | ret = -EINVAL; |
| 2716 | goto out; |
| 2717 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2718 | |
| 2719 | vcs->input = input; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2720 | vcs->data_norm = data_norm; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2721 | } else { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2722 | if (input != vcs2->input) { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2723 | ret = -EBUSY; |
| 2724 | goto out; |
| 2725 | } |
| 2726 | |
| 2727 | vcs->input = input; |
| 2728 | vcs->data_norm = vcs2->data_norm; |
| 2729 | } |
| 2730 | |
| 2731 | if (vino_drvdata->camera.owner == vcs->channel) { |
| 2732 | /* Transfer the ownership or release the input */ |
| 2733 | if (vcs2->input == VINO_INPUT_D1) { |
| 2734 | vino_drvdata->camera.owner = vcs2->channel; |
| 2735 | } else { |
| 2736 | i2c_release_client(vino_drvdata-> |
| 2737 | camera.driver); |
| 2738 | vino_drvdata->camera.owner = VINO_NO_CHANNEL; |
| 2739 | } |
| 2740 | } |
| 2741 | break; |
| 2742 | case VINO_INPUT_D1: |
| 2743 | if (!vino_drvdata->camera.driver) { |
| 2744 | ret = -EINVAL; |
| 2745 | goto out; |
| 2746 | } |
| 2747 | |
| 2748 | if (vino_drvdata->camera.owner == VINO_NO_CHANNEL) { |
Jean Delvare | e48d331 | 2008-01-27 18:14:48 +0100 | [diff] [blame] | 2749 | i2c_use_client(vino_drvdata->camera.driver); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2750 | vino_drvdata->camera.owner = vcs->channel; |
| 2751 | } |
| 2752 | |
| 2753 | if (vino_drvdata->decoder.owner == vcs->channel) { |
| 2754 | /* Transfer the ownership or release the input */ |
| 2755 | if ((vcs2->input == VINO_INPUT_COMPOSITE) || |
| 2756 | (vcs2->input == VINO_INPUT_SVIDEO)) { |
| 2757 | vino_drvdata->decoder.owner = vcs2->channel; |
| 2758 | } else { |
| 2759 | i2c_release_client(vino_drvdata-> |
| 2760 | decoder.driver); |
| 2761 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; |
| 2762 | } |
| 2763 | } |
| 2764 | |
| 2765 | vcs->input = input; |
| 2766 | vcs->data_norm = VINO_DATA_NORM_D1; |
| 2767 | break; |
| 2768 | default: |
| 2769 | ret = -EINVAL; |
| 2770 | goto out; |
| 2771 | } |
| 2772 | |
| 2773 | vino_set_default_clipping(vcs); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2774 | vino_set_default_scaling(vcs); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2775 | vino_set_default_framerate(vcs); |
| 2776 | |
| 2777 | dprintk("vino_set_input(): %s\n", vino_inputs[vcs->input].name); |
| 2778 | |
| 2779 | out: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2780 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2781 | |
| 2782 | return ret; |
| 2783 | } |
| 2784 | |
| 2785 | static void vino_release_input(struct vino_channel_settings *vcs) |
| 2786 | { |
| 2787 | struct vino_channel_settings *vcs2 = (vcs->channel == VINO_CHANNEL_A) ? |
| 2788 | &vino_drvdata->b : &vino_drvdata->a; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2789 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2790 | |
| 2791 | dprintk("vino_release_input():\n"); |
| 2792 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2793 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2794 | |
| 2795 | /* Release ownership of the channel |
| 2796 | * and if the other channel takes input from |
| 2797 | * the same source, transfer the ownership */ |
| 2798 | if (vino_drvdata->camera.owner == vcs->channel) { |
| 2799 | if (vcs2->input == VINO_INPUT_D1) { |
| 2800 | vino_drvdata->camera.owner = vcs2->channel; |
| 2801 | } else { |
| 2802 | i2c_release_client(vino_drvdata->camera.driver); |
| 2803 | vino_drvdata->camera.owner = VINO_NO_CHANNEL; |
| 2804 | } |
| 2805 | } else if (vino_drvdata->decoder.owner == vcs->channel) { |
| 2806 | if ((vcs2->input == VINO_INPUT_COMPOSITE) || |
| 2807 | (vcs2->input == VINO_INPUT_SVIDEO)) { |
| 2808 | vino_drvdata->decoder.owner = vcs2->channel; |
| 2809 | } else { |
| 2810 | i2c_release_client(vino_drvdata->decoder.driver); |
| 2811 | vino_drvdata->decoder.owner = VINO_NO_CHANNEL; |
| 2812 | } |
| 2813 | } |
| 2814 | vcs->input = VINO_INPUT_NONE; |
| 2815 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2816 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2817 | } |
| 2818 | |
| 2819 | /* execute with input_lock locked */ |
| 2820 | static int vino_set_data_norm(struct vino_channel_settings *vcs, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2821 | unsigned int data_norm, |
| 2822 | unsigned long *flags) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2823 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2824 | int err = 0; |
| 2825 | |
| 2826 | if (data_norm == vcs->data_norm) |
| 2827 | return 0; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2828 | |
| 2829 | switch (vcs->input) { |
| 2830 | case VINO_INPUT_D1: |
| 2831 | /* only one "norm" supported */ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2832 | if ((data_norm != VINO_DATA_NORM_D1) |
| 2833 | && (data_norm != VINO_DATA_NORM_AUTO) |
| 2834 | && (data_norm != VINO_DATA_NORM_AUTO_EXT)) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2835 | return -EINVAL; |
| 2836 | break; |
| 2837 | case VINO_INPUT_COMPOSITE: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2838 | case VINO_INPUT_SVIDEO: { |
| 2839 | if ((data_norm != VINO_DATA_NORM_PAL) |
| 2840 | && (data_norm != VINO_DATA_NORM_NTSC) |
| 2841 | && (data_norm != VINO_DATA_NORM_SECAM) |
| 2842 | && (data_norm != VINO_DATA_NORM_AUTO) |
| 2843 | && (data_norm != VINO_DATA_NORM_AUTO_EXT)) |
| 2844 | return -EINVAL; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2845 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2846 | spin_unlock_irqrestore(&vino_drvdata->input_lock, *flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2847 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2848 | /* Don't hold spinlocks while setting norm |
| 2849 | * as it may take a while... */ |
| 2850 | |
| 2851 | err = vino_saa7191_set_norm(&data_norm); |
| 2852 | |
| 2853 | spin_lock_irqsave(&vino_drvdata->input_lock, *flags); |
| 2854 | |
| 2855 | if (err) |
| 2856 | goto out; |
| 2857 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2858 | vcs->data_norm = data_norm; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2859 | |
| 2860 | vino_set_default_clipping(vcs); |
| 2861 | vino_set_default_scaling(vcs); |
| 2862 | vino_set_default_framerate(vcs); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2863 | break; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2864 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2865 | default: |
| 2866 | return -EINVAL; |
| 2867 | } |
| 2868 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2869 | out: |
| 2870 | return err; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2871 | } |
| 2872 | |
| 2873 | /* V4L2 helper functions */ |
| 2874 | |
| 2875 | static int vino_find_data_format(__u32 pixelformat) |
| 2876 | { |
| 2877 | int i; |
| 2878 | |
| 2879 | for (i = 0; i < VINO_DATA_FMT_COUNT; i++) { |
| 2880 | if (vino_data_formats[i].pixelformat == pixelformat) |
| 2881 | return i; |
| 2882 | } |
| 2883 | |
| 2884 | return VINO_DATA_FMT_NONE; |
| 2885 | } |
| 2886 | |
| 2887 | static int vino_enum_data_norm(struct vino_channel_settings *vcs, __u32 index) |
| 2888 | { |
| 2889 | int data_norm = VINO_DATA_NORM_NONE; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2890 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2891 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2892 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2893 | switch(vcs->input) { |
| 2894 | case VINO_INPUT_COMPOSITE: |
| 2895 | case VINO_INPUT_SVIDEO: |
| 2896 | if (index == 0) { |
| 2897 | data_norm = VINO_DATA_NORM_PAL; |
| 2898 | } else if (index == 1) { |
| 2899 | data_norm = VINO_DATA_NORM_NTSC; |
| 2900 | } else if (index == 2) { |
| 2901 | data_norm = VINO_DATA_NORM_SECAM; |
| 2902 | } |
| 2903 | break; |
| 2904 | case VINO_INPUT_D1: |
| 2905 | if (index == 0) { |
| 2906 | data_norm = VINO_DATA_NORM_D1; |
| 2907 | } |
| 2908 | break; |
| 2909 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2910 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2911 | |
| 2912 | return data_norm; |
| 2913 | } |
| 2914 | |
| 2915 | static int vino_enum_input(struct vino_channel_settings *vcs, __u32 index) |
| 2916 | { |
| 2917 | int input = VINO_INPUT_NONE; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2918 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2919 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2920 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2921 | if (vino_drvdata->decoder.driver && vino_drvdata->camera.driver) { |
| 2922 | switch (index) { |
| 2923 | case 0: |
| 2924 | input = VINO_INPUT_COMPOSITE; |
| 2925 | break; |
| 2926 | case 1: |
| 2927 | input = VINO_INPUT_SVIDEO; |
| 2928 | break; |
| 2929 | case 2: |
| 2930 | input = VINO_INPUT_D1; |
| 2931 | break; |
| 2932 | } |
| 2933 | } else if (vino_drvdata->decoder.driver) { |
| 2934 | switch (index) { |
| 2935 | case 0: |
| 2936 | input = VINO_INPUT_COMPOSITE; |
| 2937 | break; |
| 2938 | case 1: |
| 2939 | input = VINO_INPUT_SVIDEO; |
| 2940 | break; |
| 2941 | } |
| 2942 | } else if (vino_drvdata->camera.driver) { |
| 2943 | switch (index) { |
| 2944 | case 0: |
| 2945 | input = VINO_INPUT_D1; |
| 2946 | break; |
| 2947 | } |
| 2948 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 2949 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 2950 | |
| 2951 | return input; |
| 2952 | } |
| 2953 | |
| 2954 | /* execute with input_lock locked */ |
| 2955 | static __u32 vino_find_input_index(struct vino_channel_settings *vcs) |
| 2956 | { |
| 2957 | __u32 index = 0; |
| 2958 | // FIXME: detect when no inputs available |
| 2959 | |
| 2960 | if (vino_drvdata->decoder.driver && vino_drvdata->camera.driver) { |
| 2961 | switch (vcs->input) { |
| 2962 | case VINO_INPUT_COMPOSITE: |
| 2963 | index = 0; |
| 2964 | break; |
| 2965 | case VINO_INPUT_SVIDEO: |
| 2966 | index = 1; |
| 2967 | break; |
| 2968 | case VINO_INPUT_D1: |
| 2969 | index = 2; |
| 2970 | break; |
| 2971 | } |
| 2972 | } else if (vino_drvdata->decoder.driver) { |
| 2973 | switch (vcs->input) { |
| 2974 | case VINO_INPUT_COMPOSITE: |
| 2975 | index = 0; |
| 2976 | break; |
| 2977 | case VINO_INPUT_SVIDEO: |
| 2978 | index = 1; |
| 2979 | break; |
| 2980 | } |
| 2981 | } else if (vino_drvdata->camera.driver) { |
| 2982 | switch (vcs->input) { |
| 2983 | case VINO_INPUT_D1: |
| 2984 | index = 0; |
| 2985 | break; |
| 2986 | } |
| 2987 | } |
| 2988 | |
| 2989 | return index; |
| 2990 | } |
| 2991 | |
| 2992 | /* V4L2 ioctls */ |
| 2993 | |
| 2994 | static void vino_v4l2_querycap(struct v4l2_capability *cap) |
| 2995 | { |
| 2996 | memset(cap, 0, sizeof(struct v4l2_capability)); |
| 2997 | |
| 2998 | strcpy(cap->driver, vino_driver_name); |
| 2999 | strcpy(cap->card, vino_driver_description); |
| 3000 | strcpy(cap->bus_info, vino_bus_name); |
| 3001 | cap->version = VINO_VERSION_CODE; |
| 3002 | cap->capabilities = |
| 3003 | V4L2_CAP_VIDEO_CAPTURE | |
| 3004 | V4L2_CAP_STREAMING; |
| 3005 | // V4L2_CAP_OVERLAY, V4L2_CAP_READWRITE |
| 3006 | } |
| 3007 | |
| 3008 | static int vino_v4l2_enuminput(struct vino_channel_settings *vcs, |
| 3009 | struct v4l2_input *i) |
| 3010 | { |
| 3011 | __u32 index = i->index; |
| 3012 | int input; |
| 3013 | dprintk("requested index = %d\n", index); |
| 3014 | |
| 3015 | input = vino_enum_input(vcs, index); |
| 3016 | if (input == VINO_INPUT_NONE) |
| 3017 | return -EINVAL; |
| 3018 | |
| 3019 | memset(i, 0, sizeof(struct v4l2_input)); |
| 3020 | |
| 3021 | i->index = index; |
| 3022 | i->type = V4L2_INPUT_TYPE_CAMERA; |
| 3023 | i->std = vino_inputs[input].std; |
| 3024 | strcpy(i->name, vino_inputs[input].name); |
| 3025 | |
| 3026 | if ((input == VINO_INPUT_COMPOSITE) |
| 3027 | || (input == VINO_INPUT_SVIDEO)) { |
| 3028 | struct saa7191_status status; |
| 3029 | i2c_decoder_command(DECODER_SAA7191_GET_STATUS, &status); |
| 3030 | i->status |= status.signal ? 0 : V4L2_IN_ST_NO_SIGNAL; |
| 3031 | i->status |= status.color ? 0 : V4L2_IN_ST_NO_COLOR; |
| 3032 | } |
| 3033 | |
| 3034 | return 0; |
| 3035 | } |
| 3036 | |
| 3037 | static int vino_v4l2_g_input(struct vino_channel_settings *vcs, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3038 | unsigned int *i) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3039 | { |
| 3040 | __u32 index; |
| 3041 | int input; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3042 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3043 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3044 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3045 | input = vcs->input; |
| 3046 | index = vino_find_input_index(vcs); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3047 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3048 | |
| 3049 | dprintk("input = %d\n", input); |
| 3050 | |
| 3051 | if (input == VINO_INPUT_NONE) { |
| 3052 | return -EINVAL; |
| 3053 | } |
| 3054 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3055 | *i = index; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3056 | |
| 3057 | return 0; |
| 3058 | } |
| 3059 | |
| 3060 | static int vino_v4l2_s_input(struct vino_channel_settings *vcs, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3061 | unsigned int *i) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3062 | { |
| 3063 | int input; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3064 | dprintk("requested input = %d\n", *i); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3065 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3066 | input = vino_enum_input(vcs, *i); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3067 | if (input == VINO_INPUT_NONE) |
| 3068 | return -EINVAL; |
| 3069 | |
| 3070 | return vino_set_input(vcs, input); |
| 3071 | } |
| 3072 | |
| 3073 | static int vino_v4l2_enumstd(struct vino_channel_settings *vcs, |
| 3074 | struct v4l2_standard *s) |
| 3075 | { |
| 3076 | int index = s->index; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3077 | int data_norm; |
| 3078 | |
| 3079 | data_norm = vino_enum_data_norm(vcs, index); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3080 | dprintk("standard index = %d\n", index); |
| 3081 | |
| 3082 | if (data_norm == VINO_DATA_NORM_NONE) |
| 3083 | return -EINVAL; |
| 3084 | |
| 3085 | dprintk("standard name = %s\n", |
| 3086 | vino_data_norms[data_norm].description); |
| 3087 | |
| 3088 | memset(s, 0, sizeof(struct v4l2_standard)); |
| 3089 | s->index = index; |
| 3090 | |
| 3091 | s->id = vino_data_norms[data_norm].std; |
| 3092 | s->frameperiod.numerator = 1; |
| 3093 | s->frameperiod.denominator = |
| 3094 | vino_data_norms[data_norm].fps_max; |
| 3095 | s->framelines = |
| 3096 | vino_data_norms[data_norm].framelines; |
| 3097 | strcpy(s->name, |
| 3098 | vino_data_norms[data_norm].description); |
| 3099 | |
| 3100 | return 0; |
| 3101 | } |
| 3102 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3103 | static int vino_v4l2_querystd(struct vino_channel_settings *vcs, |
| 3104 | v4l2_std_id *std) |
| 3105 | { |
| 3106 | unsigned long flags; |
| 3107 | int err = 0; |
| 3108 | |
| 3109 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
| 3110 | |
| 3111 | switch (vcs->input) { |
| 3112 | case VINO_INPUT_D1: |
| 3113 | *std = vino_inputs[vcs->input].std; |
| 3114 | break; |
| 3115 | case VINO_INPUT_COMPOSITE: |
| 3116 | case VINO_INPUT_SVIDEO: { |
| 3117 | struct saa7191_status status; |
| 3118 | |
| 3119 | i2c_decoder_command(DECODER_SAA7191_GET_STATUS, &status); |
| 3120 | |
| 3121 | if (status.signal) { |
| 3122 | if (status.signal_60hz) { |
| 3123 | *std = V4L2_STD_NTSC; |
| 3124 | } else { |
| 3125 | *std = V4L2_STD_PAL | V4L2_STD_SECAM; |
| 3126 | } |
| 3127 | } else { |
| 3128 | *std = vino_inputs[vcs->input].std; |
| 3129 | } |
| 3130 | break; |
| 3131 | } |
| 3132 | default: |
| 3133 | err = -EINVAL; |
| 3134 | } |
| 3135 | |
| 3136 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
| 3137 | |
| 3138 | return err; |
| 3139 | } |
| 3140 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3141 | static int vino_v4l2_g_std(struct vino_channel_settings *vcs, |
| 3142 | v4l2_std_id *std) |
| 3143 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3144 | unsigned long flags; |
| 3145 | |
| 3146 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
| 3147 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3148 | *std = vino_data_norms[vcs->data_norm].std; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3149 | dprintk("current standard = %d\n", vcs->data_norm); |
| 3150 | |
| 3151 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3152 | |
| 3153 | return 0; |
| 3154 | } |
| 3155 | |
| 3156 | static int vino_v4l2_s_std(struct vino_channel_settings *vcs, |
| 3157 | v4l2_std_id *std) |
| 3158 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3159 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3160 | int ret = 0; |
| 3161 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3162 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
| 3163 | |
| 3164 | if (!vino_is_input_owner(vcs)) { |
| 3165 | ret = -EBUSY; |
| 3166 | goto out; |
| 3167 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3168 | |
| 3169 | /* check if the standard is valid for the current input */ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3170 | if ((*std) & vino_inputs[vcs->input].std) { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3171 | dprintk("standard accepted\n"); |
| 3172 | |
| 3173 | /* change the video norm for SAA7191 |
| 3174 | * and accept NTSC for D1 (do nothing) */ |
| 3175 | |
| 3176 | if (vcs->input == VINO_INPUT_D1) |
| 3177 | goto out; |
| 3178 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3179 | if (((*std) & V4L2_STD_PAL) |
| 3180 | && ((*std) & V4L2_STD_NTSC) |
| 3181 | && ((*std) & V4L2_STD_SECAM)) { |
| 3182 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_AUTO_EXT, |
| 3183 | &flags); |
| 3184 | } else if ((*std) & V4L2_STD_PAL) { |
| 3185 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_PAL, |
| 3186 | &flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3187 | } else if ((*std) & V4L2_STD_NTSC) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3188 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_NTSC, |
| 3189 | &flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3190 | } else if ((*std) & V4L2_STD_SECAM) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3191 | ret = vino_set_data_norm(vcs, VINO_DATA_NORM_SECAM, |
| 3192 | &flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3193 | } else { |
| 3194 | ret = -EINVAL; |
| 3195 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3196 | |
| 3197 | if (ret) { |
| 3198 | ret = -EINVAL; |
| 3199 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3200 | } else { |
| 3201 | ret = -EINVAL; |
| 3202 | } |
| 3203 | |
| 3204 | out: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3205 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3206 | |
| 3207 | return ret; |
| 3208 | } |
| 3209 | |
| 3210 | static int vino_v4l2_enum_fmt(struct vino_channel_settings *vcs, |
| 3211 | struct v4l2_fmtdesc *fd) |
| 3212 | { |
| 3213 | enum v4l2_buf_type type = fd->type; |
| 3214 | int index = fd->index; |
| 3215 | dprintk("format index = %d\n", index); |
| 3216 | |
| 3217 | switch (fd->type) { |
| 3218 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
| 3219 | if ((fd->index < 0) || |
| 3220 | (fd->index >= VINO_DATA_FMT_COUNT)) |
| 3221 | return -EINVAL; |
| 3222 | dprintk("format name = %s\n", |
| 3223 | vino_data_formats[index].description); |
| 3224 | |
| 3225 | memset(fd, 0, sizeof(struct v4l2_fmtdesc)); |
| 3226 | fd->index = index; |
| 3227 | fd->type = type; |
| 3228 | fd->pixelformat = vino_data_formats[index].pixelformat; |
| 3229 | strcpy(fd->description, vino_data_formats[index].description); |
| 3230 | break; |
| 3231 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 3232 | default: |
| 3233 | return -EINVAL; |
| 3234 | } |
| 3235 | |
| 3236 | return 0; |
| 3237 | } |
| 3238 | |
| 3239 | static int vino_v4l2_try_fmt(struct vino_channel_settings *vcs, |
| 3240 | struct v4l2_format *f) |
| 3241 | { |
| 3242 | struct vino_channel_settings tempvcs; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3243 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3244 | |
| 3245 | switch (f->type) { |
| 3246 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { |
| 3247 | struct v4l2_pix_format *pf = &f->fmt.pix; |
| 3248 | |
| 3249 | dprintk("requested: w = %d, h = %d\n", |
| 3250 | pf->width, pf->height); |
| 3251 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3252 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3253 | memcpy(&tempvcs, vcs, sizeof(struct vino_channel_settings)); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3254 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3255 | |
| 3256 | tempvcs.data_format = vino_find_data_format(pf->pixelformat); |
| 3257 | if (tempvcs.data_format == VINO_DATA_FMT_NONE) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3258 | tempvcs.data_format = VINO_DATA_FMT_GREY; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3259 | pf->pixelformat = |
| 3260 | vino_data_formats[tempvcs.data_format]. |
| 3261 | pixelformat; |
| 3262 | } |
| 3263 | |
| 3264 | /* data format must be set before clipping/scaling */ |
| 3265 | vino_set_scaling(&tempvcs, pf->width, pf->height); |
| 3266 | |
| 3267 | dprintk("data format = %s\n", |
| 3268 | vino_data_formats[tempvcs.data_format].description); |
| 3269 | |
| 3270 | pf->width = (tempvcs.clipping.right - tempvcs.clipping.left) / |
| 3271 | tempvcs.decimation; |
| 3272 | pf->height = (tempvcs.clipping.bottom - tempvcs.clipping.top) / |
| 3273 | tempvcs.decimation; |
| 3274 | |
| 3275 | pf->field = V4L2_FIELD_INTERLACED; |
| 3276 | pf->bytesperline = tempvcs.line_size; |
| 3277 | pf->sizeimage = tempvcs.line_size * |
| 3278 | (tempvcs.clipping.bottom - tempvcs.clipping.top) / |
| 3279 | tempvcs.decimation; |
| 3280 | pf->colorspace = |
| 3281 | vino_data_formats[tempvcs.data_format].colorspace; |
| 3282 | |
| 3283 | pf->priv = 0; |
| 3284 | break; |
| 3285 | } |
| 3286 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 3287 | default: |
| 3288 | return -EINVAL; |
| 3289 | } |
| 3290 | |
| 3291 | return 0; |
| 3292 | } |
| 3293 | |
| 3294 | static int vino_v4l2_g_fmt(struct vino_channel_settings *vcs, |
| 3295 | struct v4l2_format *f) |
| 3296 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3297 | unsigned long flags; |
| 3298 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3299 | switch (f->type) { |
| 3300 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { |
| 3301 | struct v4l2_pix_format *pf = &f->fmt.pix; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3302 | |
| 3303 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3304 | |
| 3305 | pf->width = (vcs->clipping.right - vcs->clipping.left) / |
| 3306 | vcs->decimation; |
| 3307 | pf->height = (vcs->clipping.bottom - vcs->clipping.top) / |
| 3308 | vcs->decimation; |
| 3309 | pf->pixelformat = |
| 3310 | vino_data_formats[vcs->data_format].pixelformat; |
| 3311 | |
| 3312 | pf->field = V4L2_FIELD_INTERLACED; |
| 3313 | pf->bytesperline = vcs->line_size; |
| 3314 | pf->sizeimage = vcs->line_size * |
| 3315 | (vcs->clipping.bottom - vcs->clipping.top) / |
| 3316 | vcs->decimation; |
| 3317 | pf->colorspace = |
| 3318 | vino_data_formats[vcs->data_format].colorspace; |
| 3319 | |
| 3320 | pf->priv = 0; |
| 3321 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3322 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3323 | break; |
| 3324 | } |
| 3325 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 3326 | default: |
| 3327 | return -EINVAL; |
| 3328 | } |
| 3329 | |
| 3330 | return 0; |
| 3331 | } |
| 3332 | |
| 3333 | static int vino_v4l2_s_fmt(struct vino_channel_settings *vcs, |
| 3334 | struct v4l2_format *f) |
| 3335 | { |
| 3336 | int data_format; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3337 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3338 | |
| 3339 | switch (f->type) { |
| 3340 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { |
| 3341 | struct v4l2_pix_format *pf = &f->fmt.pix; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3342 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3343 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3344 | |
| 3345 | data_format = vino_find_data_format(pf->pixelformat); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3346 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3347 | if (data_format == VINO_DATA_FMT_NONE) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3348 | vcs->data_format = VINO_DATA_FMT_GREY; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3349 | pf->pixelformat = |
| 3350 | vino_data_formats[vcs->data_format]. |
| 3351 | pixelformat; |
| 3352 | } else { |
| 3353 | vcs->data_format = data_format; |
| 3354 | } |
| 3355 | |
| 3356 | /* data format must be set before clipping/scaling */ |
| 3357 | vino_set_scaling(vcs, pf->width, pf->height); |
| 3358 | |
| 3359 | dprintk("data format = %s\n", |
| 3360 | vino_data_formats[vcs->data_format].description); |
| 3361 | |
| 3362 | pf->width = vcs->clipping.right - vcs->clipping.left; |
| 3363 | pf->height = vcs->clipping.bottom - vcs->clipping.top; |
| 3364 | |
| 3365 | pf->field = V4L2_FIELD_INTERLACED; |
| 3366 | pf->bytesperline = vcs->line_size; |
| 3367 | pf->sizeimage = vcs->line_size * |
| 3368 | (vcs->clipping.bottom - vcs->clipping.top) / |
| 3369 | vcs->decimation; |
| 3370 | pf->colorspace = |
| 3371 | vino_data_formats[vcs->data_format].colorspace; |
| 3372 | |
| 3373 | pf->priv = 0; |
| 3374 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3375 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3376 | break; |
| 3377 | } |
| 3378 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 3379 | default: |
| 3380 | return -EINVAL; |
| 3381 | } |
| 3382 | |
| 3383 | return 0; |
| 3384 | } |
| 3385 | |
| 3386 | static int vino_v4l2_cropcap(struct vino_channel_settings *vcs, |
| 3387 | struct v4l2_cropcap *ccap) |
| 3388 | { |
| 3389 | const struct vino_data_norm *norm; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3390 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3391 | |
| 3392 | switch (ccap->type) { |
| 3393 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3394 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
| 3395 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3396 | norm = &vino_data_norms[vcs->data_norm]; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3397 | |
| 3398 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3399 | |
| 3400 | ccap->bounds.left = 0; |
| 3401 | ccap->bounds.top = 0; |
| 3402 | ccap->bounds.width = norm->width; |
| 3403 | ccap->bounds.height = norm->height; |
| 3404 | memcpy(&ccap->defrect, &ccap->bounds, |
| 3405 | sizeof(struct v4l2_rect)); |
| 3406 | |
| 3407 | ccap->pixelaspect.numerator = 1; |
| 3408 | ccap->pixelaspect.denominator = 1; |
| 3409 | break; |
| 3410 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 3411 | default: |
| 3412 | return -EINVAL; |
| 3413 | } |
| 3414 | |
| 3415 | return 0; |
| 3416 | } |
| 3417 | |
| 3418 | static int vino_v4l2_g_crop(struct vino_channel_settings *vcs, |
| 3419 | struct v4l2_crop *c) |
| 3420 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3421 | unsigned long flags; |
| 3422 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3423 | switch (c->type) { |
| 3424 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3425 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3426 | |
| 3427 | c->c.left = vcs->clipping.left; |
| 3428 | c->c.top = vcs->clipping.top; |
| 3429 | c->c.width = vcs->clipping.right - vcs->clipping.left; |
| 3430 | c->c.height = vcs->clipping.bottom - vcs->clipping.top; |
| 3431 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3432 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3433 | break; |
| 3434 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 3435 | default: |
| 3436 | return -EINVAL; |
| 3437 | } |
| 3438 | |
| 3439 | return 0; |
| 3440 | } |
| 3441 | |
| 3442 | static int vino_v4l2_s_crop(struct vino_channel_settings *vcs, |
| 3443 | struct v4l2_crop *c) |
| 3444 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3445 | unsigned long flags; |
| 3446 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3447 | switch (c->type) { |
| 3448 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3449 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3450 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3451 | vino_set_clipping(vcs, c->c.left, c->c.top, |
| 3452 | c->c.width, c->c.height); |
| 3453 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3454 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3455 | break; |
| 3456 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 3457 | default: |
| 3458 | return -EINVAL; |
| 3459 | } |
| 3460 | |
| 3461 | return 0; |
| 3462 | } |
| 3463 | |
| 3464 | static int vino_v4l2_g_parm(struct vino_channel_settings *vcs, |
| 3465 | struct v4l2_streamparm *sp) |
| 3466 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3467 | unsigned long flags; |
| 3468 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3469 | switch (sp->type) { |
| 3470 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { |
| 3471 | struct v4l2_captureparm *cp = &sp->parm.capture; |
| 3472 | memset(cp, 0, sizeof(struct v4l2_captureparm)); |
| 3473 | |
| 3474 | cp->capability = V4L2_CAP_TIMEPERFRAME; |
| 3475 | cp->timeperframe.numerator = 1; |
| 3476 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3477 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
| 3478 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3479 | cp->timeperframe.denominator = vcs->fps; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3480 | |
| 3481 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3482 | |
| 3483 | // TODO: cp->readbuffers = xxx; |
| 3484 | break; |
| 3485 | } |
| 3486 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 3487 | default: |
| 3488 | return -EINVAL; |
| 3489 | } |
| 3490 | |
| 3491 | return 0; |
| 3492 | } |
| 3493 | |
| 3494 | static int vino_v4l2_s_parm(struct vino_channel_settings *vcs, |
| 3495 | struct v4l2_streamparm *sp) |
| 3496 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3497 | unsigned long flags; |
| 3498 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3499 | switch (sp->type) { |
| 3500 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { |
| 3501 | struct v4l2_captureparm *cp = &sp->parm.capture; |
| 3502 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3503 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3504 | |
| 3505 | if ((cp->timeperframe.numerator == 0) || |
| 3506 | (cp->timeperframe.denominator == 0)) { |
| 3507 | /* reset framerate */ |
| 3508 | vino_set_default_framerate(vcs); |
| 3509 | } else { |
| 3510 | vino_set_framerate(vcs, cp->timeperframe.denominator / |
| 3511 | cp->timeperframe.numerator); |
| 3512 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3513 | |
| 3514 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3515 | |
| 3516 | // TODO: set buffers according to cp->readbuffers |
| 3517 | break; |
| 3518 | } |
| 3519 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 3520 | default: |
| 3521 | return -EINVAL; |
| 3522 | } |
| 3523 | |
| 3524 | return 0; |
| 3525 | } |
| 3526 | |
| 3527 | static int vino_v4l2_reqbufs(struct vino_channel_settings *vcs, |
| 3528 | struct v4l2_requestbuffers *rb) |
| 3529 | { |
| 3530 | if (vcs->reading) |
| 3531 | return -EBUSY; |
| 3532 | |
| 3533 | switch (rb->type) { |
| 3534 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { |
| 3535 | // TODO: check queue type |
| 3536 | if (rb->memory != V4L2_MEMORY_MMAP) { |
| 3537 | dprintk("type not mmap\n"); |
| 3538 | return -EINVAL; |
| 3539 | } |
| 3540 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3541 | dprintk("count = %d\n", rb->count); |
| 3542 | if (rb->count > 0) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3543 | if (vino_is_capturing(vcs)) { |
| 3544 | dprintk("busy, capturing\n"); |
| 3545 | return -EBUSY; |
| 3546 | } |
| 3547 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3548 | if (vino_queue_has_mapped_buffers(&vcs->fb_queue)) { |
| 3549 | dprintk("busy, buffers still mapped\n"); |
| 3550 | return -EBUSY; |
| 3551 | } else { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3552 | vcs->streaming = 0; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3553 | vino_queue_free(&vcs->fb_queue); |
| 3554 | vino_queue_init(&vcs->fb_queue, &rb->count); |
| 3555 | } |
| 3556 | } else { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3557 | vcs->streaming = 0; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3558 | vino_capture_stop(vcs); |
| 3559 | vino_queue_free(&vcs->fb_queue); |
| 3560 | } |
| 3561 | break; |
| 3562 | } |
| 3563 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 3564 | default: |
| 3565 | return -EINVAL; |
| 3566 | } |
| 3567 | |
| 3568 | return 0; |
| 3569 | } |
| 3570 | |
| 3571 | static void vino_v4l2_get_buffer_status(struct vino_channel_settings *vcs, |
| 3572 | struct vino_framebuffer *fb, |
| 3573 | struct v4l2_buffer *b) |
| 3574 | { |
| 3575 | if (vino_queue_outgoing_contains(&vcs->fb_queue, |
| 3576 | fb->id)) { |
| 3577 | b->flags &= ~V4L2_BUF_FLAG_QUEUED; |
| 3578 | b->flags |= V4L2_BUF_FLAG_DONE; |
| 3579 | } else if (vino_queue_incoming_contains(&vcs->fb_queue, |
| 3580 | fb->id)) { |
| 3581 | b->flags &= ~V4L2_BUF_FLAG_DONE; |
| 3582 | b->flags |= V4L2_BUF_FLAG_QUEUED; |
| 3583 | } else { |
| 3584 | b->flags &= ~(V4L2_BUF_FLAG_DONE | |
| 3585 | V4L2_BUF_FLAG_QUEUED); |
| 3586 | } |
| 3587 | |
| 3588 | b->flags &= ~(V4L2_BUF_FLAG_TIMECODE); |
| 3589 | |
| 3590 | if (fb->map_count > 0) |
| 3591 | b->flags |= V4L2_BUF_FLAG_MAPPED; |
| 3592 | |
| 3593 | b->index = fb->id; |
| 3594 | b->memory = (vcs->fb_queue.type == VINO_MEMORY_MMAP) ? |
| 3595 | V4L2_MEMORY_MMAP : V4L2_MEMORY_USERPTR; |
| 3596 | b->m.offset = fb->offset; |
| 3597 | b->bytesused = fb->data_size; |
| 3598 | b->length = fb->size; |
| 3599 | b->field = V4L2_FIELD_INTERLACED; |
| 3600 | b->sequence = fb->frame_counter; |
| 3601 | memcpy(&b->timestamp, &fb->timestamp, |
| 3602 | sizeof(struct timeval)); |
| 3603 | // b->input ? |
| 3604 | |
| 3605 | dprintk("buffer %d: length = %d, bytesused = %d, offset = %d\n", |
| 3606 | fb->id, fb->size, fb->data_size, fb->offset); |
| 3607 | } |
| 3608 | |
| 3609 | static int vino_v4l2_querybuf(struct vino_channel_settings *vcs, |
| 3610 | struct v4l2_buffer *b) |
| 3611 | { |
| 3612 | if (vcs->reading) |
| 3613 | return -EBUSY; |
| 3614 | |
| 3615 | switch (b->type) { |
| 3616 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { |
| 3617 | struct vino_framebuffer *fb; |
| 3618 | |
| 3619 | // TODO: check queue type |
| 3620 | if (b->index >= vino_queue_get_length(&vcs->fb_queue)) { |
| 3621 | dprintk("invalid index = %d\n", |
| 3622 | b->index); |
| 3623 | return -EINVAL; |
| 3624 | } |
| 3625 | |
| 3626 | fb = vino_queue_get_buffer(&vcs->fb_queue, |
| 3627 | b->index); |
| 3628 | if (fb == NULL) { |
| 3629 | dprintk("vino_queue_get_buffer() failed"); |
| 3630 | return -EINVAL; |
| 3631 | } |
| 3632 | |
| 3633 | vino_v4l2_get_buffer_status(vcs, fb, b); |
| 3634 | break; |
| 3635 | } |
| 3636 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 3637 | default: |
| 3638 | return -EINVAL; |
| 3639 | } |
| 3640 | |
| 3641 | return 0; |
| 3642 | } |
| 3643 | |
| 3644 | static int vino_v4l2_qbuf(struct vino_channel_settings *vcs, |
| 3645 | struct v4l2_buffer *b) |
| 3646 | { |
| 3647 | if (vcs->reading) |
| 3648 | return -EBUSY; |
| 3649 | |
| 3650 | switch (b->type) { |
| 3651 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { |
| 3652 | struct vino_framebuffer *fb; |
| 3653 | int ret; |
| 3654 | |
| 3655 | // TODO: check queue type |
| 3656 | if (b->memory != V4L2_MEMORY_MMAP) { |
| 3657 | dprintk("type not mmap\n"); |
| 3658 | return -EINVAL; |
| 3659 | } |
| 3660 | |
| 3661 | fb = vino_capture_enqueue(vcs, b->index); |
| 3662 | if (fb == NULL) |
| 3663 | return -EINVAL; |
| 3664 | |
| 3665 | vino_v4l2_get_buffer_status(vcs, fb, b); |
| 3666 | |
| 3667 | if (vcs->streaming) { |
| 3668 | ret = vino_capture_next(vcs, 1); |
| 3669 | if (ret) |
| 3670 | return ret; |
| 3671 | } |
| 3672 | break; |
| 3673 | } |
| 3674 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 3675 | default: |
| 3676 | return -EINVAL; |
| 3677 | } |
| 3678 | |
| 3679 | return 0; |
| 3680 | } |
| 3681 | |
| 3682 | static int vino_v4l2_dqbuf(struct vino_channel_settings *vcs, |
| 3683 | struct v4l2_buffer *b, |
| 3684 | unsigned int nonblocking) |
| 3685 | { |
| 3686 | if (vcs->reading) |
| 3687 | return -EBUSY; |
| 3688 | |
| 3689 | switch (b->type) { |
| 3690 | case V4L2_BUF_TYPE_VIDEO_CAPTURE: { |
| 3691 | struct vino_framebuffer *fb; |
| 3692 | unsigned int incoming, outgoing; |
| 3693 | int err; |
| 3694 | |
| 3695 | // TODO: check queue type |
| 3696 | |
| 3697 | err = vino_queue_get_incoming(&vcs->fb_queue, &incoming); |
| 3698 | if (err) { |
| 3699 | dprintk("vino_queue_get_incoming() failed\n"); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3700 | return -EINVAL; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3701 | } |
| 3702 | err = vino_queue_get_outgoing(&vcs->fb_queue, &outgoing); |
| 3703 | if (err) { |
| 3704 | dprintk("vino_queue_get_outgoing() failed\n"); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3705 | return -EINVAL; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3706 | } |
| 3707 | |
| 3708 | dprintk("incoming = %d, outgoing = %d\n", incoming, outgoing); |
| 3709 | |
| 3710 | if (outgoing == 0) { |
| 3711 | if (incoming == 0) { |
| 3712 | dprintk("no incoming or outgoing buffers\n"); |
| 3713 | return -EINVAL; |
| 3714 | } |
| 3715 | if (nonblocking) { |
| 3716 | dprintk("non-blocking I/O was selected and " |
| 3717 | "there are no buffers to dequeue\n"); |
| 3718 | return -EAGAIN; |
| 3719 | } |
| 3720 | |
| 3721 | err = vino_wait_for_frame(vcs); |
| 3722 | if (err) { |
| 3723 | err = vino_wait_for_frame(vcs); |
| 3724 | if (err) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3725 | /* interrupted or |
| 3726 | * no frames captured because |
| 3727 | * of frame skipping */ |
| 3728 | // vino_capture_failed(vcs); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3729 | return -EIO; |
| 3730 | } |
| 3731 | } |
| 3732 | } |
| 3733 | |
| 3734 | fb = vino_queue_remove(&vcs->fb_queue, &b->index); |
| 3735 | if (fb == NULL) { |
| 3736 | dprintk("vino_queue_remove() failed\n"); |
| 3737 | return -EINVAL; |
| 3738 | } |
| 3739 | |
| 3740 | err = vino_check_buffer(vcs, fb); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3741 | |
| 3742 | vino_v4l2_get_buffer_status(vcs, fb, b); |
| 3743 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3744 | if (err) |
| 3745 | return -EIO; |
| 3746 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3747 | break; |
| 3748 | } |
| 3749 | case V4L2_BUF_TYPE_VIDEO_OVERLAY: |
| 3750 | default: |
| 3751 | return -EINVAL; |
| 3752 | } |
| 3753 | |
| 3754 | return 0; |
| 3755 | } |
| 3756 | |
| 3757 | static int vino_v4l2_streamon(struct vino_channel_settings *vcs) |
| 3758 | { |
| 3759 | unsigned int incoming; |
| 3760 | int ret; |
| 3761 | if (vcs->reading) |
| 3762 | return -EBUSY; |
| 3763 | |
| 3764 | if (vcs->streaming) |
| 3765 | return 0; |
| 3766 | |
| 3767 | // TODO: check queue type |
| 3768 | |
| 3769 | if (vino_queue_get_length(&vcs->fb_queue) < 1) { |
| 3770 | dprintk("no buffers allocated\n"); |
| 3771 | return -EINVAL; |
| 3772 | } |
| 3773 | |
| 3774 | ret = vino_queue_get_incoming(&vcs->fb_queue, &incoming); |
| 3775 | if (ret) { |
| 3776 | dprintk("vino_queue_get_incoming() failed\n"); |
| 3777 | return -EINVAL; |
| 3778 | } |
| 3779 | |
| 3780 | vcs->streaming = 1; |
| 3781 | |
| 3782 | if (incoming > 0) { |
| 3783 | ret = vino_capture_next(vcs, 1); |
| 3784 | if (ret) { |
| 3785 | vcs->streaming = 0; |
| 3786 | |
| 3787 | dprintk("couldn't start capture\n"); |
| 3788 | return -EINVAL; |
| 3789 | } |
| 3790 | } |
| 3791 | |
| 3792 | return 0; |
| 3793 | } |
| 3794 | |
| 3795 | static int vino_v4l2_streamoff(struct vino_channel_settings *vcs) |
| 3796 | { |
| 3797 | if (vcs->reading) |
| 3798 | return -EBUSY; |
| 3799 | |
| 3800 | if (!vcs->streaming) |
| 3801 | return 0; |
| 3802 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3803 | vcs->streaming = 0; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3804 | vino_capture_stop(vcs); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3805 | |
| 3806 | return 0; |
| 3807 | } |
| 3808 | |
| 3809 | static int vino_v4l2_queryctrl(struct vino_channel_settings *vcs, |
| 3810 | struct v4l2_queryctrl *queryctrl) |
| 3811 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3812 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3813 | int i; |
| 3814 | int err = 0; |
| 3815 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3816 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3817 | |
| 3818 | switch (vcs->input) { |
| 3819 | case VINO_INPUT_D1: |
| 3820 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { |
| 3821 | if (vino_indycam_v4l2_controls[i].id == |
| 3822 | queryctrl->id) { |
| 3823 | memcpy(queryctrl, |
| 3824 | &vino_indycam_v4l2_controls[i], |
| 3825 | sizeof(struct v4l2_queryctrl)); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3826 | queryctrl->reserved[0] = 0; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3827 | goto found; |
| 3828 | } |
| 3829 | } |
| 3830 | |
| 3831 | err = -EINVAL; |
| 3832 | break; |
| 3833 | case VINO_INPUT_COMPOSITE: |
| 3834 | case VINO_INPUT_SVIDEO: |
| 3835 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { |
| 3836 | if (vino_saa7191_v4l2_controls[i].id == |
| 3837 | queryctrl->id) { |
| 3838 | memcpy(queryctrl, |
| 3839 | &vino_saa7191_v4l2_controls[i], |
| 3840 | sizeof(struct v4l2_queryctrl)); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3841 | queryctrl->reserved[0] = 0; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3842 | goto found; |
| 3843 | } |
| 3844 | } |
| 3845 | |
| 3846 | err = -EINVAL; |
| 3847 | break; |
| 3848 | default: |
| 3849 | err = -EINVAL; |
| 3850 | } |
| 3851 | |
| 3852 | found: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3853 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3854 | |
| 3855 | return err; |
| 3856 | } |
| 3857 | |
| 3858 | static int vino_v4l2_g_ctrl(struct vino_channel_settings *vcs, |
| 3859 | struct v4l2_control *control) |
| 3860 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3861 | unsigned long flags; |
| 3862 | int i; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3863 | int err = 0; |
| 3864 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3865 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3866 | |
| 3867 | switch (vcs->input) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3868 | case VINO_INPUT_D1: { |
| 3869 | struct indycam_control indycam_ctrl; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3870 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3871 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { |
| 3872 | if (vino_indycam_v4l2_controls[i].id == |
| 3873 | control->id) { |
| 3874 | goto found1; |
| 3875 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3876 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3877 | |
| 3878 | err = -EINVAL; |
| 3879 | goto out; |
| 3880 | |
| 3881 | found1: |
| 3882 | indycam_ctrl.type = vino_indycam_v4l2_controls[i].reserved[0]; |
| 3883 | |
| 3884 | err = i2c_camera_command(DECODER_INDYCAM_GET_CONTROL, |
| 3885 | &indycam_ctrl); |
| 3886 | if (err) { |
| 3887 | err = -EINVAL; |
| 3888 | goto out; |
| 3889 | } |
| 3890 | |
| 3891 | control->value = indycam_ctrl.value; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3892 | break; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3893 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3894 | case VINO_INPUT_COMPOSITE: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3895 | case VINO_INPUT_SVIDEO: { |
| 3896 | struct saa7191_control saa7191_ctrl; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3897 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3898 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { |
| 3899 | if (vino_saa7191_v4l2_controls[i].id == |
| 3900 | control->id) { |
| 3901 | goto found2; |
| 3902 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3903 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3904 | |
| 3905 | err = -EINVAL; |
| 3906 | goto out; |
| 3907 | |
| 3908 | found2: |
| 3909 | saa7191_ctrl.type = vino_saa7191_v4l2_controls[i].reserved[0]; |
| 3910 | |
| 3911 | err = i2c_decoder_command(DECODER_SAA7191_GET_CONTROL, |
| 3912 | &saa7191_ctrl); |
| 3913 | if (err) { |
| 3914 | err = -EINVAL; |
| 3915 | goto out; |
| 3916 | } |
| 3917 | |
| 3918 | control->value = saa7191_ctrl.value; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3919 | break; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3920 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3921 | default: |
| 3922 | err = -EINVAL; |
| 3923 | } |
| 3924 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3925 | out: |
| 3926 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3927 | |
| 3928 | return err; |
| 3929 | } |
| 3930 | |
| 3931 | static int vino_v4l2_s_ctrl(struct vino_channel_settings *vcs, |
| 3932 | struct v4l2_control *control) |
| 3933 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3934 | unsigned long flags; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3935 | int i; |
| 3936 | int err = 0; |
| 3937 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3938 | spin_lock_irqsave(&vino_drvdata->input_lock, flags); |
| 3939 | |
| 3940 | if (!vino_is_input_owner(vcs)) { |
| 3941 | err = -EBUSY; |
| 3942 | goto out; |
| 3943 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3944 | |
| 3945 | switch (vcs->input) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3946 | case VINO_INPUT_D1: { |
| 3947 | struct indycam_control indycam_ctrl; |
| 3948 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3949 | for (i = 0; i < VINO_INDYCAM_V4L2_CONTROL_COUNT; i++) { |
| 3950 | if (vino_indycam_v4l2_controls[i].id == |
| 3951 | control->id) { |
| 3952 | if ((control->value >= |
| 3953 | vino_indycam_v4l2_controls[i].minimum) |
| 3954 | && (control->value <= |
| 3955 | vino_indycam_v4l2_controls[i]. |
| 3956 | maximum)) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3957 | goto found1; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3958 | } else { |
| 3959 | err = -ERANGE; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3960 | goto out; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3961 | } |
| 3962 | } |
| 3963 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3964 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3965 | err = -EINVAL; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3966 | goto out; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3967 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3968 | found1: |
| 3969 | indycam_ctrl.type = vino_indycam_v4l2_controls[i].reserved[0]; |
| 3970 | indycam_ctrl.value = control->value; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3971 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3972 | err = i2c_camera_command(DECODER_INDYCAM_SET_CONTROL, |
| 3973 | &indycam_ctrl); |
| 3974 | if (err) |
| 3975 | err = -EINVAL; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3976 | break; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3977 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3978 | case VINO_INPUT_COMPOSITE: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3979 | case VINO_INPUT_SVIDEO: { |
| 3980 | struct saa7191_control saa7191_ctrl; |
| 3981 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3982 | for (i = 0; i < VINO_SAA7191_V4L2_CONTROL_COUNT; i++) { |
| 3983 | if (vino_saa7191_v4l2_controls[i].id == |
| 3984 | control->id) { |
| 3985 | if ((control->value >= |
| 3986 | vino_saa7191_v4l2_controls[i].minimum) |
| 3987 | && (control->value <= |
| 3988 | vino_saa7191_v4l2_controls[i]. |
| 3989 | maximum)) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3990 | goto found2; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3991 | } else { |
| 3992 | err = -ERANGE; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3993 | goto out; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3994 | } |
| 3995 | } |
| 3996 | } |
| 3997 | err = -EINVAL; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 3998 | goto out; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 3999 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 4000 | found2: |
| 4001 | saa7191_ctrl.type = vino_saa7191_v4l2_controls[i].reserved[0]; |
| 4002 | saa7191_ctrl.value = control->value; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4003 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 4004 | err = i2c_decoder_command(DECODER_SAA7191_SET_CONTROL, |
| 4005 | &saa7191_ctrl); |
| 4006 | if (err) |
| 4007 | err = -EINVAL; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4008 | break; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 4009 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4010 | default: |
| 4011 | err = -EINVAL; |
| 4012 | } |
| 4013 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 4014 | out: |
| 4015 | spin_unlock_irqrestore(&vino_drvdata->input_lock, flags); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4016 | |
| 4017 | return err; |
| 4018 | } |
| 4019 | |
| 4020 | /* File operations */ |
| 4021 | |
Hans Verkuil | bec4366 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 4022 | static int vino_open(struct file *file) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4023 | { |
Hans Verkuil | c170ecf | 2008-08-23 08:32:09 -0300 | [diff] [blame] | 4024 | struct vino_channel_settings *vcs = video_drvdata(file); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4025 | int ret = 0; |
| 4026 | dprintk("open(): channel = %c\n", |
| 4027 | (vcs->channel == VINO_CHANNEL_A) ? 'A' : 'B'); |
| 4028 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 4029 | mutex_lock(&vcs->mutex); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4030 | |
| 4031 | if (vcs->users) { |
| 4032 | dprintk("open(): driver busy\n"); |
| 4033 | ret = -EBUSY; |
| 4034 | goto out; |
| 4035 | } |
| 4036 | |
| 4037 | ret = vino_acquire_input(vcs); |
| 4038 | if (ret) { |
| 4039 | dprintk("open(): vino_acquire_input() failed\n"); |
| 4040 | goto out; |
| 4041 | } |
| 4042 | |
| 4043 | vcs->users++; |
| 4044 | |
| 4045 | out: |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 4046 | mutex_unlock(&vcs->mutex); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4047 | |
| 4048 | dprintk("open(): %s!\n", ret ? "failed" : "complete"); |
| 4049 | |
| 4050 | return ret; |
| 4051 | } |
| 4052 | |
Hans Verkuil | bec4366 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 4053 | static int vino_close(struct file *file) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4054 | { |
Hans Verkuil | c170ecf | 2008-08-23 08:32:09 -0300 | [diff] [blame] | 4055 | struct vino_channel_settings *vcs = video_drvdata(file); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4056 | dprintk("close():\n"); |
| 4057 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 4058 | mutex_lock(&vcs->mutex); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4059 | |
| 4060 | vcs->users--; |
| 4061 | |
| 4062 | if (!vcs->users) { |
| 4063 | vino_release_input(vcs); |
| 4064 | |
| 4065 | /* stop DMA and free buffers */ |
| 4066 | vino_capture_stop(vcs); |
| 4067 | vino_queue_free(&vcs->fb_queue); |
| 4068 | } |
| 4069 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 4070 | mutex_unlock(&vcs->mutex); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4071 | |
| 4072 | return 0; |
| 4073 | } |
| 4074 | |
| 4075 | static void vino_vm_open(struct vm_area_struct *vma) |
| 4076 | { |
| 4077 | struct vino_framebuffer *fb = vma->vm_private_data; |
| 4078 | |
| 4079 | fb->map_count++; |
| 4080 | dprintk("vino_vm_open(): count = %d\n", fb->map_count); |
| 4081 | } |
| 4082 | |
| 4083 | static void vino_vm_close(struct vm_area_struct *vma) |
| 4084 | { |
| 4085 | struct vino_framebuffer *fb = vma->vm_private_data; |
| 4086 | |
| 4087 | fb->map_count--; |
| 4088 | dprintk("vino_vm_close(): count = %d\n", fb->map_count); |
| 4089 | } |
| 4090 | |
| 4091 | static struct vm_operations_struct vino_vm_ops = { |
| 4092 | .open = vino_vm_open, |
| 4093 | .close = vino_vm_close, |
| 4094 | }; |
| 4095 | |
| 4096 | static int vino_mmap(struct file *file, struct vm_area_struct *vma) |
| 4097 | { |
Hans Verkuil | c170ecf | 2008-08-23 08:32:09 -0300 | [diff] [blame] | 4098 | struct vino_channel_settings *vcs = video_drvdata(file); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4099 | |
| 4100 | unsigned long start = vma->vm_start; |
| 4101 | unsigned long size = vma->vm_end - vma->vm_start; |
| 4102 | unsigned long offset = vma->vm_pgoff << PAGE_SHIFT; |
| 4103 | |
| 4104 | struct vino_framebuffer *fb = NULL; |
| 4105 | unsigned int i, length; |
| 4106 | int ret = 0; |
| 4107 | |
| 4108 | dprintk("mmap():\n"); |
| 4109 | |
| 4110 | // TODO: reject mmap if already mapped |
| 4111 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 4112 | if (mutex_lock_interruptible(&vcs->mutex)) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4113 | return -EINTR; |
| 4114 | |
| 4115 | if (vcs->reading) { |
| 4116 | ret = -EBUSY; |
| 4117 | goto out; |
| 4118 | } |
| 4119 | |
| 4120 | // TODO: check queue type |
| 4121 | |
| 4122 | if (!(vma->vm_flags & VM_WRITE)) { |
| 4123 | dprintk("mmap(): app bug: PROT_WRITE please\n"); |
| 4124 | ret = -EINVAL; |
| 4125 | goto out; |
| 4126 | } |
| 4127 | if (!(vma->vm_flags & VM_SHARED)) { |
| 4128 | dprintk("mmap(): app bug: MAP_SHARED please\n"); |
| 4129 | ret = -EINVAL; |
| 4130 | goto out; |
| 4131 | } |
| 4132 | |
| 4133 | /* find the correct buffer using offset */ |
| 4134 | length = vino_queue_get_length(&vcs->fb_queue); |
| 4135 | if (length == 0) { |
| 4136 | dprintk("mmap(): queue not initialized\n"); |
| 4137 | ret = -EINVAL; |
| 4138 | goto out; |
| 4139 | } |
| 4140 | |
| 4141 | for (i = 0; i < length; i++) { |
| 4142 | fb = vino_queue_get_buffer(&vcs->fb_queue, i); |
| 4143 | if (fb == NULL) { |
| 4144 | dprintk("mmap(): vino_queue_get_buffer() failed\n"); |
| 4145 | ret = -EINVAL; |
| 4146 | goto out; |
| 4147 | } |
| 4148 | |
| 4149 | if (fb->offset == offset) |
| 4150 | goto found; |
| 4151 | } |
| 4152 | |
| 4153 | dprintk("mmap(): invalid offset = %lu\n", offset); |
| 4154 | ret = -EINVAL; |
| 4155 | goto out; |
| 4156 | |
| 4157 | found: |
| 4158 | dprintk("mmap(): buffer = %d\n", i); |
| 4159 | |
| 4160 | if (size > (fb->desc_table.page_count * PAGE_SIZE)) { |
| 4161 | dprintk("mmap(): failed: size = %lu > %lu\n", |
| 4162 | size, fb->desc_table.page_count * PAGE_SIZE); |
| 4163 | ret = -EINVAL; |
| 4164 | goto out; |
| 4165 | } |
| 4166 | |
| 4167 | for (i = 0; i < fb->desc_table.page_count; i++) { |
| 4168 | unsigned long pfn = |
| 4169 | virt_to_phys((void *)fb->desc_table.virtual[i]) >> |
| 4170 | PAGE_SHIFT; |
| 4171 | |
| 4172 | if (size < PAGE_SIZE) |
| 4173 | break; |
| 4174 | |
| 4175 | // protection was: PAGE_READONLY |
| 4176 | if (remap_pfn_range(vma, start, pfn, PAGE_SIZE, |
| 4177 | vma->vm_page_prot)) { |
| 4178 | dprintk("mmap(): remap_pfn_range() failed\n"); |
| 4179 | ret = -EAGAIN; |
| 4180 | goto out; |
| 4181 | } |
| 4182 | |
| 4183 | start += PAGE_SIZE; |
| 4184 | size -= PAGE_SIZE; |
| 4185 | } |
| 4186 | |
| 4187 | fb->map_count = 1; |
| 4188 | |
| 4189 | vma->vm_flags |= VM_DONTEXPAND | VM_RESERVED; |
| 4190 | vma->vm_flags &= ~VM_IO; |
| 4191 | vma->vm_private_data = fb; |
| 4192 | vma->vm_file = file; |
| 4193 | vma->vm_ops = &vino_vm_ops; |
| 4194 | |
| 4195 | out: |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 4196 | mutex_unlock(&vcs->mutex); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4197 | |
| 4198 | return ret; |
| 4199 | } |
| 4200 | |
| 4201 | static unsigned int vino_poll(struct file *file, poll_table *pt) |
| 4202 | { |
Hans Verkuil | c170ecf | 2008-08-23 08:32:09 -0300 | [diff] [blame] | 4203 | struct vino_channel_settings *vcs = video_drvdata(file); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4204 | unsigned int outgoing; |
| 4205 | unsigned int ret = 0; |
| 4206 | |
| 4207 | // lock mutex (?) |
| 4208 | // TODO: this has to be corrected for different read modes |
| 4209 | |
| 4210 | dprintk("poll():\n"); |
| 4211 | |
| 4212 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { |
| 4213 | dprintk("poll(): vino_queue_get_outgoing() failed\n"); |
| 4214 | ret = POLLERR; |
| 4215 | goto error; |
| 4216 | } |
| 4217 | if (outgoing > 0) |
| 4218 | goto over; |
| 4219 | |
| 4220 | poll_wait(file, &vcs->fb_queue.frame_wait_queue, pt); |
| 4221 | |
| 4222 | if (vino_queue_get_outgoing(&vcs->fb_queue, &outgoing)) { |
| 4223 | dprintk("poll(): vino_queue_get_outgoing() failed\n"); |
| 4224 | ret = POLLERR; |
| 4225 | goto error; |
| 4226 | } |
| 4227 | |
| 4228 | over: |
| 4229 | dprintk("poll(): data %savailable\n", |
| 4230 | (outgoing > 0) ? "" : "not "); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 4231 | |
| 4232 | if (outgoing > 0) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4233 | ret = POLLIN | POLLRDNORM; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4234 | |
| 4235 | error: |
| 4236 | |
| 4237 | return ret; |
| 4238 | } |
| 4239 | |
Hans Verkuil | 069b747 | 2008-12-30 07:04:34 -0300 | [diff] [blame] | 4240 | static long vino_do_ioctl(struct file *file, unsigned int cmd, void *arg) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4241 | { |
Hans Verkuil | c170ecf | 2008-08-23 08:32:09 -0300 | [diff] [blame] | 4242 | struct vino_channel_settings *vcs = video_drvdata(file); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4243 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 4244 | #ifdef VINO_DEBUG |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4245 | switch (_IOC_TYPE(cmd)) { |
| 4246 | case 'v': |
| 4247 | dprintk("ioctl(): V4L1 unsupported (0x%08x)\n", cmd); |
| 4248 | break; |
| 4249 | case 'V': |
| 4250 | dprintk("ioctl(): V4L2 %s (0x%08x)\n", |
| 4251 | v4l2_ioctl_names[_IOC_NR(cmd)], cmd); |
| 4252 | break; |
| 4253 | default: |
| 4254 | dprintk("ioctl(): unsupported command 0x%08x\n", cmd); |
| 4255 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 4256 | #endif |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4257 | |
| 4258 | switch (cmd) { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4259 | /* V4L2 interface */ |
| 4260 | case VIDIOC_QUERYCAP: { |
| 4261 | vino_v4l2_querycap(arg); |
| 4262 | break; |
| 4263 | } |
| 4264 | case VIDIOC_ENUMINPUT: { |
| 4265 | return vino_v4l2_enuminput(vcs, arg); |
| 4266 | } |
| 4267 | case VIDIOC_G_INPUT: { |
| 4268 | return vino_v4l2_g_input(vcs, arg); |
| 4269 | } |
| 4270 | case VIDIOC_S_INPUT: { |
| 4271 | return vino_v4l2_s_input(vcs, arg); |
| 4272 | } |
| 4273 | case VIDIOC_ENUMSTD: { |
| 4274 | return vino_v4l2_enumstd(vcs, arg); |
| 4275 | } |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 4276 | case VIDIOC_QUERYSTD: { |
| 4277 | return vino_v4l2_querystd(vcs, arg); |
| 4278 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4279 | case VIDIOC_G_STD: { |
| 4280 | return vino_v4l2_g_std(vcs, arg); |
| 4281 | } |
| 4282 | case VIDIOC_S_STD: { |
| 4283 | return vino_v4l2_s_std(vcs, arg); |
| 4284 | } |
| 4285 | case VIDIOC_ENUM_FMT: { |
| 4286 | return vino_v4l2_enum_fmt(vcs, arg); |
| 4287 | } |
| 4288 | case VIDIOC_TRY_FMT: { |
| 4289 | return vino_v4l2_try_fmt(vcs, arg); |
| 4290 | } |
| 4291 | case VIDIOC_G_FMT: { |
| 4292 | return vino_v4l2_g_fmt(vcs, arg); |
| 4293 | } |
| 4294 | case VIDIOC_S_FMT: { |
| 4295 | return vino_v4l2_s_fmt(vcs, arg); |
| 4296 | } |
| 4297 | case VIDIOC_CROPCAP: { |
| 4298 | return vino_v4l2_cropcap(vcs, arg); |
| 4299 | } |
| 4300 | case VIDIOC_G_CROP: { |
| 4301 | return vino_v4l2_g_crop(vcs, arg); |
| 4302 | } |
| 4303 | case VIDIOC_S_CROP: { |
| 4304 | return vino_v4l2_s_crop(vcs, arg); |
| 4305 | } |
| 4306 | case VIDIOC_G_PARM: { |
| 4307 | return vino_v4l2_g_parm(vcs, arg); |
| 4308 | } |
| 4309 | case VIDIOC_S_PARM: { |
| 4310 | return vino_v4l2_s_parm(vcs, arg); |
| 4311 | } |
| 4312 | case VIDIOC_REQBUFS: { |
| 4313 | return vino_v4l2_reqbufs(vcs, arg); |
| 4314 | } |
| 4315 | case VIDIOC_QUERYBUF: { |
| 4316 | return vino_v4l2_querybuf(vcs, arg); |
| 4317 | } |
| 4318 | case VIDIOC_QBUF: { |
| 4319 | return vino_v4l2_qbuf(vcs, arg); |
| 4320 | } |
| 4321 | case VIDIOC_DQBUF: { |
| 4322 | return vino_v4l2_dqbuf(vcs, arg, file->f_flags & O_NONBLOCK); |
| 4323 | } |
| 4324 | case VIDIOC_STREAMON: { |
| 4325 | return vino_v4l2_streamon(vcs); |
| 4326 | } |
| 4327 | case VIDIOC_STREAMOFF: { |
| 4328 | return vino_v4l2_streamoff(vcs); |
| 4329 | } |
| 4330 | case VIDIOC_QUERYCTRL: { |
| 4331 | return vino_v4l2_queryctrl(vcs, arg); |
| 4332 | } |
| 4333 | case VIDIOC_G_CTRL: { |
| 4334 | return vino_v4l2_g_ctrl(vcs, arg); |
| 4335 | } |
| 4336 | case VIDIOC_S_CTRL: { |
| 4337 | return vino_v4l2_s_ctrl(vcs, arg); |
| 4338 | } |
| 4339 | default: |
| 4340 | return -ENOIOCTLCMD; |
| 4341 | } |
| 4342 | |
| 4343 | return 0; |
| 4344 | } |
| 4345 | |
Hans Verkuil | 069b747 | 2008-12-30 07:04:34 -0300 | [diff] [blame] | 4346 | static long vino_ioctl(struct file *file, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4347 | unsigned int cmd, unsigned long arg) |
| 4348 | { |
Hans Verkuil | c170ecf | 2008-08-23 08:32:09 -0300 | [diff] [blame] | 4349 | struct vino_channel_settings *vcs = video_drvdata(file); |
Hans Verkuil | 069b747 | 2008-12-30 07:04:34 -0300 | [diff] [blame] | 4350 | long ret; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4351 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 4352 | if (mutex_lock_interruptible(&vcs->mutex)) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4353 | return -EINTR; |
| 4354 | |
Hans Verkuil | f473bf7 | 2008-11-01 08:25:11 -0300 | [diff] [blame] | 4355 | ret = video_usercopy(file, cmd, arg, vino_do_ioctl); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4356 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 4357 | mutex_unlock(&vcs->mutex); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4358 | |
| 4359 | return ret; |
| 4360 | } |
| 4361 | |
| 4362 | /* Initialization and cleanup */ |
| 4363 | |
Douglas Schilling Landgraf | ff699e6 | 2008-04-22 14:41:48 -0300 | [diff] [blame] | 4364 | /* __initdata */ |
| 4365 | static int vino_init_stage; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4366 | |
Hans Verkuil | bec4366 | 2008-12-30 06:58:20 -0300 | [diff] [blame] | 4367 | static const struct v4l2_file_operations vino_fops = { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4368 | .owner = THIS_MODULE, |
| 4369 | .open = vino_open, |
| 4370 | .release = vino_close, |
| 4371 | .ioctl = vino_ioctl, |
| 4372 | .mmap = vino_mmap, |
| 4373 | .poll = vino_poll, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4374 | }; |
| 4375 | |
| 4376 | static struct video_device v4l_device_template = { |
| 4377 | .name = "NOT SET", |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4378 | .fops = &vino_fops, |
| 4379 | .minor = -1, |
| 4380 | }; |
| 4381 | |
| 4382 | static void vino_module_cleanup(int stage) |
| 4383 | { |
| 4384 | switch(stage) { |
| 4385 | case 10: |
| 4386 | video_unregister_device(vino_drvdata->b.v4l_device); |
| 4387 | vino_drvdata->b.v4l_device = NULL; |
| 4388 | case 9: |
| 4389 | video_unregister_device(vino_drvdata->a.v4l_device); |
| 4390 | vino_drvdata->a.v4l_device = NULL; |
| 4391 | case 8: |
| 4392 | vino_i2c_del_bus(); |
| 4393 | case 7: |
| 4394 | free_irq(SGI_VINO_IRQ, NULL); |
| 4395 | case 6: |
| 4396 | if (vino_drvdata->b.v4l_device) { |
| 4397 | video_device_release(vino_drvdata->b.v4l_device); |
| 4398 | vino_drvdata->b.v4l_device = NULL; |
| 4399 | } |
| 4400 | case 5: |
| 4401 | if (vino_drvdata->a.v4l_device) { |
| 4402 | video_device_release(vino_drvdata->a.v4l_device); |
| 4403 | vino_drvdata->a.v4l_device = NULL; |
| 4404 | } |
| 4405 | case 4: |
| 4406 | /* all entries in dma_cpu dummy table have the same address */ |
| 4407 | dma_unmap_single(NULL, |
| 4408 | vino_drvdata->dummy_desc_table.dma_cpu[0], |
| 4409 | PAGE_SIZE, DMA_FROM_DEVICE); |
| 4410 | dma_free_coherent(NULL, VINO_DUMMY_DESC_COUNT |
| 4411 | * sizeof(dma_addr_t), |
| 4412 | (void *)vino_drvdata-> |
| 4413 | dummy_desc_table.dma_cpu, |
| 4414 | vino_drvdata->dummy_desc_table.dma); |
| 4415 | case 3: |
| 4416 | free_page(vino_drvdata->dummy_page); |
| 4417 | case 2: |
| 4418 | kfree(vino_drvdata); |
| 4419 | case 1: |
| 4420 | iounmap(vino); |
| 4421 | case 0: |
| 4422 | break; |
| 4423 | default: |
| 4424 | dprintk("vino_module_cleanup(): invalid cleanup stage = %d\n", |
| 4425 | stage); |
| 4426 | } |
| 4427 | } |
| 4428 | |
| 4429 | static int vino_probe(void) |
| 4430 | { |
| 4431 | unsigned long rev_id; |
| 4432 | |
| 4433 | if (ip22_is_fullhouse()) { |
| 4434 | printk(KERN_ERR "VINO doesn't exist in IP22 Fullhouse\n"); |
| 4435 | return -ENODEV; |
| 4436 | } |
| 4437 | |
| 4438 | if (!(sgimc->systemid & SGIMC_SYSID_EPRESENT)) { |
| 4439 | printk(KERN_ERR "VINO is not found (EISA BUS not present)\n"); |
| 4440 | return -ENODEV; |
| 4441 | } |
| 4442 | |
| 4443 | vino = (struct sgi_vino *)ioremap(VINO_BASE, sizeof(struct sgi_vino)); |
| 4444 | if (!vino) { |
| 4445 | printk(KERN_ERR "VINO: ioremap() failed\n"); |
| 4446 | return -EIO; |
| 4447 | } |
| 4448 | vino_init_stage++; |
| 4449 | |
| 4450 | if (get_dbe(rev_id, &(vino->rev_id))) { |
| 4451 | printk(KERN_ERR "Failed to read VINO revision register\n"); |
| 4452 | vino_module_cleanup(vino_init_stage); |
| 4453 | return -ENODEV; |
| 4454 | } |
| 4455 | |
| 4456 | if (VINO_ID_VALUE(rev_id) != VINO_CHIP_ID) { |
| 4457 | printk(KERN_ERR "Unknown VINO chip ID (Rev/ID: 0x%02lx)\n", |
| 4458 | rev_id); |
| 4459 | vino_module_cleanup(vino_init_stage); |
| 4460 | return -ENODEV; |
| 4461 | } |
| 4462 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 4463 | printk(KERN_INFO "VINO revision %ld found\n", VINO_REV_NUM(rev_id)); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4464 | |
| 4465 | return 0; |
| 4466 | } |
| 4467 | |
| 4468 | static int vino_init(void) |
| 4469 | { |
| 4470 | dma_addr_t dma_dummy_address; |
| 4471 | int i; |
| 4472 | |
Panagiotis Issaris | 7408187 | 2006-01-11 19:40:56 -0200 | [diff] [blame] | 4473 | vino_drvdata = kzalloc(sizeof(struct vino_settings), GFP_KERNEL); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4474 | if (!vino_drvdata) { |
| 4475 | vino_module_cleanup(vino_init_stage); |
| 4476 | return -ENOMEM; |
| 4477 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4478 | vino_init_stage++; |
| 4479 | |
| 4480 | /* create a dummy dma descriptor */ |
| 4481 | vino_drvdata->dummy_page = get_zeroed_page(GFP_KERNEL | GFP_DMA); |
| 4482 | if (!vino_drvdata->dummy_page) { |
| 4483 | vino_module_cleanup(vino_init_stage); |
| 4484 | return -ENOMEM; |
| 4485 | } |
| 4486 | vino_init_stage++; |
| 4487 | |
| 4488 | // TODO: use page_count in dummy_desc_table |
| 4489 | |
| 4490 | vino_drvdata->dummy_desc_table.dma_cpu = |
| 4491 | dma_alloc_coherent(NULL, |
| 4492 | VINO_DUMMY_DESC_COUNT * sizeof(dma_addr_t), |
| 4493 | &vino_drvdata->dummy_desc_table.dma, |
| 4494 | GFP_KERNEL | GFP_DMA); |
| 4495 | if (!vino_drvdata->dummy_desc_table.dma_cpu) { |
| 4496 | vino_module_cleanup(vino_init_stage); |
| 4497 | return -ENOMEM; |
| 4498 | } |
| 4499 | vino_init_stage++; |
| 4500 | |
| 4501 | dma_dummy_address = dma_map_single(NULL, |
| 4502 | (void *)vino_drvdata->dummy_page, |
| 4503 | PAGE_SIZE, DMA_FROM_DEVICE); |
| 4504 | for (i = 0; i < VINO_DUMMY_DESC_COUNT; i++) { |
| 4505 | vino_drvdata->dummy_desc_table.dma_cpu[i] = dma_dummy_address; |
| 4506 | } |
| 4507 | |
| 4508 | /* initialize VINO */ |
| 4509 | |
| 4510 | vino->control = 0; |
| 4511 | vino->a.next_4_desc = vino_drvdata->dummy_desc_table.dma; |
| 4512 | vino->b.next_4_desc = vino_drvdata->dummy_desc_table.dma; |
| 4513 | udelay(VINO_DESC_FETCH_DELAY); |
| 4514 | |
| 4515 | vino->intr_status = 0; |
| 4516 | |
| 4517 | vino->a.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; |
| 4518 | vino->b.fifo_thres = VINO_FIFO_THRESHOLD_DEFAULT; |
| 4519 | |
| 4520 | return 0; |
| 4521 | } |
| 4522 | |
| 4523 | static int vino_init_channel_settings(struct vino_channel_settings *vcs, |
| 4524 | unsigned int channel, const char *name) |
| 4525 | { |
| 4526 | vcs->channel = channel; |
| 4527 | vcs->input = VINO_INPUT_NONE; |
| 4528 | vcs->alpha = 0; |
| 4529 | vcs->users = 0; |
| 4530 | vcs->data_format = VINO_DATA_FMT_GREY; |
| 4531 | vcs->data_norm = VINO_DATA_NORM_NTSC; |
| 4532 | vcs->decimation = 1; |
| 4533 | vino_set_default_clipping(vcs); |
| 4534 | vino_set_default_framerate(vcs); |
| 4535 | |
| 4536 | vcs->capturing = 0; |
| 4537 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 4538 | mutex_init(&vcs->mutex); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4539 | spin_lock_init(&vcs->capture_lock); |
| 4540 | |
Ingo Molnar | 3593cab | 2006-02-07 06:49:14 -0200 | [diff] [blame] | 4541 | mutex_init(&vcs->fb_queue.queue_mutex); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4542 | spin_lock_init(&vcs->fb_queue.queue_lock); |
| 4543 | init_waitqueue_head(&vcs->fb_queue.frame_wait_queue); |
| 4544 | |
| 4545 | vcs->v4l_device = video_device_alloc(); |
| 4546 | if (!vcs->v4l_device) { |
| 4547 | vino_module_cleanup(vino_init_stage); |
| 4548 | return -ENOMEM; |
| 4549 | } |
| 4550 | vino_init_stage++; |
| 4551 | |
| 4552 | memcpy(vcs->v4l_device, &v4l_device_template, |
| 4553 | sizeof(struct video_device)); |
| 4554 | strcpy(vcs->v4l_device->name, name); |
| 4555 | vcs->v4l_device->release = video_device_release; |
| 4556 | |
| 4557 | video_set_drvdata(vcs->v4l_device, vcs); |
| 4558 | |
| 4559 | return 0; |
| 4560 | } |
| 4561 | |
| 4562 | static int __init vino_module_init(void) |
| 4563 | { |
| 4564 | int ret; |
| 4565 | |
| 4566 | printk(KERN_INFO "SGI VINO driver version %s\n", |
| 4567 | VINO_MODULE_VERSION); |
| 4568 | |
| 4569 | ret = vino_probe(); |
| 4570 | if (ret) |
| 4571 | return ret; |
| 4572 | |
| 4573 | ret = vino_init(); |
| 4574 | if (ret) |
| 4575 | return ret; |
| 4576 | |
| 4577 | /* initialize data structures */ |
| 4578 | |
| 4579 | spin_lock_init(&vino_drvdata->vino_lock); |
| 4580 | spin_lock_init(&vino_drvdata->input_lock); |
| 4581 | |
| 4582 | ret = vino_init_channel_settings(&vino_drvdata->a, VINO_CHANNEL_A, |
| 4583 | vino_v4l_device_name_a); |
| 4584 | if (ret) |
| 4585 | return ret; |
| 4586 | |
| 4587 | ret = vino_init_channel_settings(&vino_drvdata->b, VINO_CHANNEL_B, |
| 4588 | vino_v4l_device_name_b); |
| 4589 | if (ret) |
| 4590 | return ret; |
| 4591 | |
| 4592 | /* initialize hardware and register V4L devices */ |
| 4593 | |
| 4594 | ret = request_irq(SGI_VINO_IRQ, vino_interrupt, 0, |
| 4595 | vino_driver_description, NULL); |
| 4596 | if (ret) { |
| 4597 | printk(KERN_ERR "VINO: requesting IRQ %02d failed\n", |
| 4598 | SGI_VINO_IRQ); |
| 4599 | vino_module_cleanup(vino_init_stage); |
| 4600 | return -EAGAIN; |
| 4601 | } |
| 4602 | vino_init_stage++; |
| 4603 | |
| 4604 | ret = vino_i2c_add_bus(); |
| 4605 | if (ret) { |
| 4606 | printk(KERN_ERR "VINO I2C bus registration failed\n"); |
| 4607 | vino_module_cleanup(vino_init_stage); |
| 4608 | return ret; |
| 4609 | } |
| 4610 | vino_init_stage++; |
| 4611 | |
| 4612 | ret = video_register_device(vino_drvdata->a.v4l_device, |
| 4613 | VFL_TYPE_GRABBER, -1); |
| 4614 | if (ret < 0) { |
| 4615 | printk(KERN_ERR "VINO channel A Video4Linux-device " |
| 4616 | "registration failed\n"); |
| 4617 | vino_module_cleanup(vino_init_stage); |
| 4618 | return -EINVAL; |
| 4619 | } |
| 4620 | vino_init_stage++; |
| 4621 | |
| 4622 | ret = video_register_device(vino_drvdata->b.v4l_device, |
| 4623 | VFL_TYPE_GRABBER, -1); |
| 4624 | if (ret < 0) { |
| 4625 | printk(KERN_ERR "VINO channel B Video4Linux-device " |
| 4626 | "registration failed\n"); |
| 4627 | vino_module_cleanup(vino_init_stage); |
| 4628 | return -EINVAL; |
| 4629 | } |
| 4630 | vino_init_stage++; |
| 4631 | |
Johannes Berg | a65e5d7 | 2008-07-09 10:28:38 +0200 | [diff] [blame] | 4632 | #ifdef MODULE |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 4633 | request_module("saa7191"); |
| 4634 | request_module("indycam"); |
| 4635 | #endif |
| 4636 | |
| 4637 | dprintk("init complete!\n"); |
| 4638 | |
| 4639 | return 0; |
| 4640 | } |
| 4641 | |
| 4642 | static void __exit vino_module_exit(void) |
| 4643 | { |
| 4644 | dprintk("exiting, stage = %d ...\n", vino_init_stage); |
| 4645 | vino_module_cleanup(vino_init_stage); |
| 4646 | dprintk("cleanup complete, exit!\n"); |
| 4647 | } |
| 4648 | |
| 4649 | module_init(vino_module_init); |
| 4650 | module_exit(vino_module_exit); |