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LeafOS / LeafOS-Devices / android_kernel_samsung_universal7904 / 5740f4e75f713015067e2667a52bd3b35ef91e07 / . / drivers / media / pci / tw68 / tw68-video.c
blob: ca08ca38d3bdfc7564369446c4d8de02c29714ff [file] [log] [blame]
/*
* tw68 functions to handle video data
*
* Much of this code is derived from the cx88 and sa7134 drivers, which
* were in turn derived from the bt87x driver. The original work was by
* Gerd Knorr; more recently the code was enhanced by Mauro Carvalho Chehab,
* Hans Verkuil, Andy Walls and many others. Their work is gratefully
* acknowledged. Full credit goes to them - any problems within this code
* are mine.
*
* Copyright (C) 2009 William M. Brack <wbrack@mmm.com.hk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <linux/module.h>
#include <media/v4l2-common.h>
#include <linux/sort.h>
#include "tw68.h"
#include "tw68-reg.h"
unsigned int video_debug;
static unsigned int gbuffers = 8;
static unsigned int noninterlaced; /* 0 */
static unsigned int gbufsz = 768*576*4;
static unsigned int gbufsz_max = 768*576*4;
static char secam[] = "--";
module_param(video_debug, int, 0644);
MODULE_PARM_DESC(video_debug, "enable debug messages [video]");
module_param(gbuffers, int, 0444);
MODULE_PARM_DESC(gbuffers, "number of capture buffers, range 2-32");
module_param(noninterlaced, int, 0644);
MODULE_PARM_DESC(noninterlaced, "capture non interlaced video");
module_param_string(secam, secam, sizeof(secam), 0644);
MODULE_PARM_DESC(secam, "force SECAM variant, either DK,L or Lc");
#define dprintk(level, fmt, arg...) if (video_debug & (level)) \
printk(KERN_DEBUG "%s/0: " fmt, dev->name , ## arg)
/* ------------------------------------------------------------------ */
/* data structs for video */
/*
* FIXME -
* Note that the saa7134 has formats, e.g. YUV420, which are classified
* as "planar". These affect overlay mode, and are flagged with a field
* ".planar" in the format. Do we need to implement this in this driver?
*/
static struct tw68_format formats[] = {
{
.name = "15 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_RGB555,
.depth = 16,
.twformat = ColorFormatRGB15,
}, {
.name = "15 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB555X,
.depth = 16,
.twformat = ColorFormatRGB15 | ColorFormatBSWAP,
}, {
.name = "16 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_RGB565,
.depth = 16,
.twformat = ColorFormatRGB16,
}, {
.name = "16 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB565X,
.depth = 16,
.twformat = ColorFormatRGB16 | ColorFormatBSWAP,
}, {
.name = "24 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_BGR24,
.depth = 24,
.twformat = ColorFormatRGB24,
}, {
.name = "24 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB24,
.depth = 24,
.twformat = ColorFormatRGB24 | ColorFormatBSWAP,
}, {
.name = "32 bpp RGB, le",
.fourcc = V4L2_PIX_FMT_BGR32,
.depth = 32,
.twformat = ColorFormatRGB32,
}, {
.name = "32 bpp RGB, be",
.fourcc = V4L2_PIX_FMT_RGB32,
.depth = 32,
.twformat = ColorFormatRGB32 | ColorFormatBSWAP |
ColorFormatWSWAP,
}, {
.name = "4:2:2 packed, YUYV",
.fourcc = V4L2_PIX_FMT_YUYV,
.depth = 16,
.twformat = ColorFormatYUY2,
}, {
.name = "4:2:2 packed, UYVY",
.fourcc = V4L2_PIX_FMT_UYVY,
.depth = 16,
.twformat = ColorFormatYUY2 | ColorFormatBSWAP,
}
};
#define FORMATS ARRAY_SIZE(formats)
#define NORM_625_50 \
.h_delay = 3, \
.h_delay0 = 133, \
.h_start = 0, \
.h_stop = 719, \
.v_delay = 24, \
.vbi_v_start_0 = 7, \
.vbi_v_stop_0 = 22, \
.video_v_start = 24, \
.video_v_stop = 311, \
.vbi_v_start_1 = 319
#define NORM_525_60 \
.h_delay = 8, \
.h_delay0 = 138, \
.h_start = 0, \
.h_stop = 719, \
.v_delay = 22, \
.vbi_v_start_0 = 10, \
.vbi_v_stop_0 = 21, \
.video_v_start = 22, \
.video_v_stop = 262, \
.vbi_v_start_1 = 273
/*
* The following table is searched by tw68_s_std, first for a specific
* match, then for an entry which contains the desired id. The table
* entries should therefore be ordered in ascending order of specificity.
*/
static struct tw68_tvnorm tvnorms[] = {
{
.name = "PAL-BG",
.id = V4L2_STD_PAL_BG,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0x81,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
.format = VideoFormatPALBDGHI,
}, {
.name = "PAL-I",
.id = V4L2_STD_PAL_I,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0x81,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
.format = VideoFormatPALBDGHI,
}, {
.name = "PAL-DK",
.id = V4L2_STD_PAL_DK,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0x81,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
.format = VideoFormatPALBDGHI,
}, {
.name = "PAL", /* autodetect */
.id = V4L2_STD_PAL,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0x81,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
.format = VideoFormatPALBDGHI,
}, {
.name = "NTSC",
.id = V4L2_STD_NTSC,
NORM_525_60,
.sync_control = 0x59,
.luma_control = 0x40,
.chroma_ctrl1 = 0x89,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x0e,
.vgate_misc = 0x18,
.format = VideoFormatNTSC,
}, {
.name = "SECAM-DK",
.id = V4L2_STD_SECAM_DK,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x1b,
.chroma_ctrl1 = 0xd1,
.chroma_gain = 0x80,
.chroma_ctrl2 = 0x00,
.vgate_misc = 0x1c,
.format = VideoFormatSECAM,
}, {
.name = "SECAM-L",
.id = V4L2_STD_SECAM_L,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x1b,
.chroma_ctrl1 = 0xd1,
.chroma_gain = 0x80,
.chroma_ctrl2 = 0x00,
.vgate_misc = 0x1c,
.format = VideoFormatSECAM,
}, {
.name = "SECAM-LC",
.id = V4L2_STD_SECAM_LC,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x1b,
.chroma_ctrl1 = 0xd1,
.chroma_gain = 0x80,
.chroma_ctrl2 = 0x00,
.vgate_misc = 0x1c,
.format = VideoFormatSECAM,
}, {
.name = "SECAM",
.id = V4L2_STD_SECAM,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x1b,
.chroma_ctrl1 = 0xd1,
.chroma_gain = 0x80,
.chroma_ctrl2 = 0x00,
.vgate_misc = 0x1c,
.format = VideoFormatSECAM,
}, {
.name = "PAL-M",
.id = V4L2_STD_PAL_M,
NORM_525_60,
.sync_control = 0x59,
.luma_control = 0x40,
.chroma_ctrl1 = 0xb9,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x0e,
.vgate_misc = 0x18,
.format = VideoFormatPALM,
}, {
.name = "PAL-Nc",
.id = V4L2_STD_PAL_Nc,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0xa1,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
.format = VideoFormatPALNC,
}, {
.name = "PAL-60",
.id = V4L2_STD_PAL_60,
.h_delay = 186,
.h_start = 0,
.h_stop = 719,
.v_delay = 26,
.video_v_start = 23,
.video_v_stop = 262,
.vbi_v_start_0 = 10,
.vbi_v_stop_0 = 21,
.vbi_v_start_1 = 273,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0x81,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
.format = VideoFormatPAL60,
}, {
/*
* FIXME: The following are meant to be "catch-all", and need
* to be further thought out!
*/
.name = "STD-525-60",
.id = V4L2_STD_525_60,
NORM_525_60,
.sync_control = 0x59,
.luma_control = 0x40,
.chroma_ctrl1 = 0x89,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x0e,
.vgate_misc = 0x18,
.format = VideoFormatNTSC,
}, {
.name = "STD-625-50",
.id = V4L2_STD_625_50,
NORM_625_50,
.sync_control = 0x18,
.luma_control = 0x40,
.chroma_ctrl1 = 0x81,
.chroma_gain = 0x2a,
.chroma_ctrl2 = 0x06,
.vgate_misc = 0x1c,
.format = VideoFormatPALBDGHI,
}
};
#define TVNORMS ARRAY_SIZE(tvnorms)
static const struct v4l2_queryctrl no_ctrl = {
.name = "42",
.flags = V4L2_CTRL_FLAG_DISABLED,
};
static const struct v4l2_queryctrl video_ctrls[] = {
/* --- video --- */
{
.id = V4L2_CID_BRIGHTNESS,
.name = "Brightness",
.minimum = -128,
.maximum = 127,
.step = 1,
.default_value = 20,
.type = V4L2_CTRL_TYPE_INTEGER,
}, {
.id = V4L2_CID_CONTRAST,
.name = "Contrast",
.minimum = 0,
.maximum = 255,
.step = 1,
.default_value = 100,
.type = V4L2_CTRL_TYPE_INTEGER,
}, {
.id = V4L2_CID_SATURATION,
.name = "Saturation",
.minimum = 0,
.maximum = 255,
.step = 1,
.default_value = 128,
.type = V4L2_CTRL_TYPE_INTEGER,
}, {
.id = V4L2_CID_HUE,
.name = "Hue",
.minimum = -128,
.maximum = 127,
.step = 1,
.default_value = 0,
.type = V4L2_CTRL_TYPE_INTEGER,
}, {
.id = V4L2_CID_COLOR_KILLER,
.name = "Color Killer",
.minimum = 0,
.maximum = 1,
.default_value = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
}, {
.id = V4L2_CID_CHROMA_AGC,
.name = "Chroma AGC",
.minimum = 0,
.maximum = 1,
.default_value = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
},
/* --- audio --- */
{
.id = V4L2_CID_AUDIO_MUTE,
.name = "Mute",
.minimum = 0,
.maximum = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
}, {
.id = V4L2_CID_AUDIO_VOLUME,
.name = "Volume",
.minimum = -15,
.maximum = 15,
.step = 1,
.default_value = 0,
.type = V4L2_CTRL_TYPE_INTEGER,
}
};
static const unsigned int CTRLS = ARRAY_SIZE(video_ctrls);
/*
* Routine to lookup a control by its ID, and return a pointer
* to the entry in the video_ctrls array for that control.
*/
static const struct v4l2_queryctrl *ctrl_by_id(unsigned int id)
{
unsigned int i;
for (i = 0; i < CTRLS; i++)
if (video_ctrls[i].id == id)
return video_ctrls+i;
return NULL;
}
static struct tw68_format *format_by_fourcc(unsigned int fourcc)
{
unsigned int i;
for (i = 0; i < FORMATS; i++)
if (formats[i].fourcc == fourcc)
return formats+i;
return NULL;
}
/* ----------------------------------------------------------------------- */
/* resource management */
static int res_get(struct tw68_fh *fh, unsigned int bit)
{
struct tw68_dev *dev = fh->dev;
if (fh->resources & bit)
/* have it already allocated */
return 1;
/* is it free? */
mutex_lock(&dev->lock);
if (dev->resources & bit) {
/* no, someone else uses it */
mutex_unlock(&fh->dev->lock);
return 0;
}
/* it's free, grab it */
fh->resources |= bit;
dev->resources |= bit;
dprintk(DBG_FLOW, "%s: %d\n", __func__, bit);
mutex_unlock(&dev->lock);
return 1;
}
static int res_check(struct tw68_fh *fh, unsigned int bit)
{
return fh->resources & bit;
}
static int res_locked(struct tw68_dev *dev, unsigned int bit)
{
return dev->resources & bit;
}
static void res_free(struct tw68_fh *fh,
unsigned int bits)
{
struct tw68_dev *dev = fh->dev;
BUG_ON((fh->resources & bits) != bits);
mutex_lock(&fh->dev->lock);
fh->resources &= ~bits;
fh->dev->resources &= ~bits;
dprintk(DBG_FLOW, "%s: %d\n", __func__, bits);
mutex_unlock(&fh->dev->lock);
}
/* ------------------------------------------------------------------ */
/*
* Note that the cropping rectangles are described in terms of a single
* frame, i.e. line positions are only 1/2 the interlaced equivalent
*/
static void set_tvnorm(struct tw68_dev *dev, struct tw68_tvnorm *norm)
{
dprintk(DBG_FLOW, "%s: %s\n", __func__, norm->name);
dev->tvnorm = norm;
/* setup cropping */
dev->crop_bounds.left = norm->h_start;
dev->crop_defrect.left = norm->h_start;
dev->crop_bounds.width = norm->h_stop - norm->h_start + 1;
dev->crop_defrect.width = norm->h_stop - norm->h_start + 1;
dev->crop_bounds.top = norm->video_v_start;
dev->crop_defrect.top = norm->video_v_start;
dev->crop_bounds.height = (((norm->id & V4L2_STD_525_60) ?
524 : 624)) / 2 - dev->crop_bounds.top;
dev->crop_defrect.height = (norm->video_v_stop -
norm->video_v_start + 1);
dev->crop_current = dev->crop_defrect;
if (norm != dev->tvnorm) {
dev->tvnorm = norm;
tw68_set_tvnorm_hw(dev);
}
}
static void video_mux(struct tw68_dev *dev, int input)
{
dprintk(DBG_FLOW, "%s: input = %d [%s]\n", __func__, input,
card_in(dev, input).name);
/*
* dev->input shows current application request,
* dev->hw_input shows current hardware setting
*/
dev->input = &card_in(dev, input);
tw68_tvaudio_setinput(dev, &card_in(dev, input));
}
/*
* tw68_set_scale
*
* Scaling and Cropping for video decoding
*
* We are working with 3 values for horizontal and vertical - scale,
* delay and active.
*
* HACTIVE represent the actual number of pixels in the "usable" image,
* before scaling. HDELAY represents the number of pixels skipped
* between the start of the horizontal sync and the start of the image.
* HSCALE is calculated using the formula
* HSCALE = (HACTIVE / (#pixels desired)) * 256
*
* The vertical registers are similar, except based upon the total number
* of lines in the image, and the first line of the image (i.e. ignoring
* vertical sync and VBI).
*
* Note that the number of bytes reaching the FIFO (and hence needing
* to be processed by the DMAP program) is completely dependent upon
* these values, especially HSCALE.
*
* Parameters:
* @dev pointer to the device structure, needed for
* getting current norm (as well as debug print)
* @width actual image width (from user buffer)
* @height actual image height
* @field indicates Top, Bottom or Interlaced
*/
static int tw68_set_scale(struct tw68_dev *dev, unsigned int width,
unsigned int height, enum v4l2_field field)
{
/* set individually for debugging clarity */
int hactive, hdelay, hscale;
int vactive, vdelay, vscale;
int comb;
if (V4L2_FIELD_HAS_BOTH(field)) /* if field is interlaced */
height /= 2; /* we must set for 1-frame */
dprintk(DBG_FLOW, "%s: width=%d, height=%d, both=%d\n Crop rect: "
"top=%d, left=%d, width=%d height=%d\n"
" tvnorm h_delay=%d, h_start=%d, h_stop=%d, "
"v_delay=%d, v_start=%d, v_stop=%d\n" , __func__,
width, height, V4L2_FIELD_HAS_BOTH(field),
dev->crop_bounds.top, dev->crop_bounds.left,
dev->crop_bounds.width, dev->crop_bounds.height,
dev->tvnorm->h_delay, dev->tvnorm->h_start, dev->tvnorm->h_stop,
dev->tvnorm->v_delay, dev->tvnorm->video_v_start,
dev->tvnorm->video_v_stop);
switch (dev->vdecoder) {
case TW6800:
hdelay = dev->tvnorm->h_delay0;
break;
default:
hdelay = dev->tvnorm->h_delay;
break;
}
hdelay += dev->crop_bounds.left;
hactive = dev->crop_bounds.width;
hscale = (hactive * 256) / (width);
vdelay = dev->tvnorm->v_delay + dev->crop_bounds.top -
dev->crop_defrect.top;
vactive = dev->crop_bounds.height;
vscale = (vactive * 256) / height;
dprintk(DBG_FLOW, "%s: %dx%d [%s%s,%s]\n", __func__,
width, height,
V4L2_FIELD_HAS_TOP(field) ? "T" : "",
V4L2_FIELD_HAS_BOTTOM(field) ? "B" : "",
v4l2_norm_to_name(dev->tvnorm->id));
dprintk(DBG_FLOW, "%s: hactive=%d, hdelay=%d, hscale=%d; "
"vactive=%d, vdelay=%d, vscale=%d\n", __func__,
hactive, hdelay, hscale, vactive, vdelay, vscale);
comb = ((vdelay & 0x300) >> 2) |
((vactive & 0x300) >> 4) |
((hdelay & 0x300) >> 6) |
((hactive & 0x300) >> 8);
dprintk(DBG_FLOW, "%s: setting CROP_HI=%02x, VDELAY_LO=%02x, "
"VACTIVE_LO=%02x, HDELAY_LO=%02x, HACTIVE_LO=%02x\n",
__func__, comb, vdelay, vactive, hdelay, hactive);
tw_writeb(TW68_CROP_HI, comb);
tw_writeb(TW68_VDELAY_LO, vdelay & 0xff);
tw_writeb(TW68_VACTIVE_LO, vactive & 0xff);
tw_writeb(TW68_HDELAY_LO, hdelay & 0xff);
tw_writeb(TW68_HACTIVE_LO, hactive & 0xff);
comb = ((vscale & 0xf00) >> 4) | ((hscale & 0xf00) >> 8);
dprintk(DBG_FLOW, "%s: setting SCALE_HI=%02x, VSCALE_LO=%02x, "
"HSCALE_LO=%02x\n", __func__, comb, vscale, hscale);
tw_writeb(TW68_SCALE_HI, comb);
tw_writeb(TW68_VSCALE_LO, vscale);
tw_writeb(TW68_HSCALE_LO, hscale);
return 0;
}
/* ------------------------------------------------------------------ */
static int tw68_video_start_dma(struct tw68_dev *dev, struct tw68_dmaqueue *q,
struct tw68_buf *buf) {
dprintk(DBG_FLOW, "%s: Starting risc program\n", __func__);
/* Assure correct input */
if (dev->hw_input != dev->input) {
dev->hw_input = dev->input;
tw_andorb(TW68_INFORM, 0x03 << 2, dev->input->vmux << 2);
}
/* Set cropping and scaling */
tw68_set_scale(dev, buf->vb.width, buf->vb.height, buf->vb.field);
/*
* Set start address for RISC program. Note that if the DMAP
* processor is currently running, it must be stopped before
* a new address can be set.
*/
tw_clearl(TW68_DMAC, TW68_DMAP_EN);
tw_writel(TW68_DMAP_SA, cpu_to_le32(buf->risc.dma));
/* Clear any pending interrupts */
tw_writel(TW68_INTSTAT, dev->board_virqmask);
/* Enable the risc engine and the fifo */
tw_andorl(TW68_DMAC, 0xff, buf->fmt->twformat |
ColorFormatGamma | TW68_DMAP_EN | TW68_FIFO_EN);
dev->pci_irqmask |= dev->board_virqmask;
tw_setl(TW68_INTMASK, dev->pci_irqmask);
return 0;
}
/* ------------------------------------------------------------------ */
/* videobuf queue operations */
/*
* check_buf_fmt
*
* callback from tw68-core buffer_queue to determine whether the
* current buffer and the previous one are "compatible" (i.e. the
* risc programs can be chained without requiring a format change)
*/
static int tw68_check_video_fmt(struct tw68_buf *prev, struct tw68_buf *buf)
{
return (prev->vb.width == buf->vb.width &&
prev->vb.height == buf->vb.height &&
prev->fmt == buf->fmt);
}
/*
* buffer_setup
*
* Calculate required size of buffer and maximum number allowed
*/
static int
buffer_setup(struct videobuf_queue *q, unsigned int *count,
unsigned int *size)
{
struct tw68_fh *fh = q->priv_data;
*size = fh->fmt->depth * fh->width * fh->height >> 3;
if (0 == *count)
*count = gbuffers;
*count = tw68_buffer_count(*size, *count);
return 0;
}
static int buffer_activate(struct tw68_dev *dev, struct tw68_buf *buf,
struct tw68_buf *next)
{
dprintk(DBG_BUFF, "%s: dev=%p, buf=%p, next=%p\n",
__func__, dev, buf, next);
if (dev->hw_input != dev->input) {
dev->hw_input = dev->input;
tw_andorb(TW68_INFORM, 0x03 << 2,
dev->hw_input->vmux << 2);
}
buf->vb.state = VIDEOBUF_ACTIVE;
/* TODO - need to assure scaling/cropping are set correctly */
mod_timer(&dev->video_q.timeout, jiffies+BUFFER_TIMEOUT);
return 0;
}
/*
* buffer_prepare
*
* Set the ancilliary information into the buffer structure. This
* includes generating the necessary risc program if it hasn't already
* been done for the current buffer format.
* The structure fh contains the details of the format requested by the
* user - type, width, height and #fields. This is compared with the
* last format set for the current buffer. If they differ, the risc
* code (which controls the filling of the buffer) is (re-)generated.
*/
static int
buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
enum v4l2_field field)
{
struct tw68_fh *fh = q->priv_data;
struct tw68_dev *dev = fh->dev;
struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
int rc, init_buffer = 0;
unsigned int maxw, maxh;
BUG_ON(NULL == fh->fmt);
maxw = dev->tvnorm->h_stop - dev->tvnorm->h_start + 1;
maxh = 2*(dev->tvnorm->video_v_stop - dev->tvnorm->video_v_start + 1);
if (fh->width < 48 || fh->width > maxw || fh->height > maxh
|| fh->height < 16) {
dprintk(DBG_UNEXPECTED, "%s: invalid dimensions - "
"fh->width=%d, fh->height=%d, maxw=%d, maxh=%d\n",
__func__, fh->width, fh->height, maxw, maxh);
return -EINVAL;
}
buf->vb.size = (fh->width * fh->height * (fh->fmt->depth)) >> 3;
if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
return -EINVAL;
if (buf->fmt != fh->fmt ||
buf->vb.width != fh->width ||
buf->vb.height != fh->height ||
buf->vb.field != field) {
dprintk(DBG_BUFF, "%s: buf - fmt=%p, width=%3d, height=%3d, "
"field=%d\n%s: fh - fmt=%p, width=%3d, height=%3d, "
"field=%d\n", __func__, buf->fmt, buf->vb.width,
buf->vb.height, buf->vb.field, __func__, fh->fmt,
fh->width, fh->height, field);
buf->fmt = fh->fmt;
buf->vb.width = fh->width;
buf->vb.height = fh->height;
buf->vb.field = field;
init_buffer = 1; /* force risc code re-generation */
}
buf->input = dev->input;
if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
rc = videobuf_iolock(q, &buf->vb, NULL);
if (0 != rc)
goto fail;
init_buffer = 1; /* force risc code re-generation */
}
dprintk(DBG_BUFF, "%s: q=%p, vb=%p, init_buffer=%d\n",
__func__, q, vb, init_buffer);
if (init_buffer) {
buf->bpl = buf->vb.width * (buf->fmt->depth) >> 3;
dprintk(DBG_TESTING, "%s: Generating new risc code "
"[%dx%dx%d](%d)\n", __func__, buf->vb.width,
buf->vb.height, buf->fmt->depth, buf->bpl);
switch (buf->vb.field) {
case V4L2_FIELD_TOP:
tw68_risc_buffer(dev->pci, &buf->risc,
dma->sglist,
0, UNSET,
buf->bpl, 0,
buf->vb.height);
break;
case V4L2_FIELD_BOTTOM:
tw68_risc_buffer(dev->pci, &buf->risc,
dma->sglist,
UNSET, 0,
buf->bpl, 0,
buf->vb.height);
break;
case V4L2_FIELD_INTERLACED:
tw68_risc_buffer(dev->pci, &buf->risc,
dma->sglist,
0, buf->bpl,
buf->bpl, buf->bpl,
buf->vb.height >> 1);
break;
case V4L2_FIELD_SEQ_TB:
tw68_risc_buffer(dev->pci, &buf->risc,
dma->sglist,
0, buf->bpl * (buf->vb.height >> 1),
buf->bpl, 0,
buf->vb.height >> 1);
break;
case V4L2_FIELD_SEQ_BT:
tw68_risc_buffer(dev->pci, &buf->risc,
dma->sglist,
buf->bpl * (buf->vb.height >> 1), 0,
buf->bpl, 0,
buf->vb.height >> 1);
break;
default:
BUG();
}
}
dprintk(DBG_BUFF, "%s: [%p/%d] - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
__func__, buf, buf->vb.i, fh->width, fh->height,
fh->fmt->depth, fh->fmt->name, (unsigned long)buf->risc.dma);
buf->vb.state = VIDEOBUF_PREPARED;
buf->activate = buffer_activate;
return 0;
fail:
tw68_dma_free(q, buf);
return rc;
}
/*
* buffer_queue
*
* Callback whenever a buffer has been requested (by read() or QBUF)
*/
static void
buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
{
struct tw68_fh *fh = q->priv_data;
struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
tw68_buffer_queue(fh->dev, &fh->dev->video_q, buf);
}
/*
* buffer_release
*
* Free a buffer previously allocated.
*/
static void buffer_release(struct videobuf_queue *q,
struct videobuf_buffer *vb)
{
struct tw68_buf *buf = container_of(vb, struct tw68_buf, vb);
tw68_dma_free(q, buf);
}
static struct videobuf_queue_ops video_qops = {
.buf_setup = buffer_setup,
.buf_prepare = buffer_prepare,
.buf_queue = buffer_queue,
.buf_release = buffer_release,
};
/* ------------------------------------------------------------------ */
static int tw68_g_ctrl_internal(struct tw68_dev *dev, struct tw68_fh *fh,
struct v4l2_control *c)
{
const struct v4l2_queryctrl *ctrl;
dprintk(DBG_FLOW, "%s\n", __func__);
ctrl = ctrl_by_id(c->id);
if (NULL == ctrl)
return -EINVAL;
switch (c->id) {
case V4L2_CID_BRIGHTNESS:
c->value = (char)tw_readb(TW68_BRIGHT);
break;
case V4L2_CID_HUE:
c->value = (char)tw_readb(TW68_HUE);
break;
case V4L2_CID_CONTRAST:
c->value = tw_readb(TW68_CONTRAST);
break;
case V4L2_CID_SATURATION:
c->value = tw_readb(TW68_SAT_U);
break;
case V4L2_CID_COLOR_KILLER:
c->value = 0 != (tw_readb(TW68_MISC2) & 0xe0);
break;
case V4L2_CID_CHROMA_AGC:
c->value = 0 != (tw_readb(TW68_LOOP) & 0x30);
break;
case V4L2_CID_AUDIO_MUTE:
/*hack to suppresss tvtime complaint */
c->value = 0;
break;
#if 0
case V4L2_CID_AUDIO_VOLUME:
c->value = dev->ctl_volume;
break;
#endif
default:
return -EINVAL;
}
return 0;
}
static int tw68_g_ctrl(struct file *file, void *priv, struct v4l2_control *c)
{
struct tw68_fh *fh = priv;
return tw68_g_ctrl_internal(fh->dev, fh, c);
}
static int tw68_s_ctrl_value(struct tw68_dev *dev, __u32 id, int val)
{
int err = 0;
dprintk(DBG_FLOW, "%s\n", __func__);
switch (id) {
case V4L2_CID_BRIGHTNESS:
tw_writeb(TW68_BRIGHT, val);
break;
case V4L2_CID_HUE:
tw_writeb(TW68_HUE, val);
break;
case V4L2_CID_CONTRAST:
tw_writeb(TW68_CONTRAST, val);
break;
case V4L2_CID_SATURATION:
tw_writeb(TW68_SAT_U, val);
tw_writeb(TW68_SAT_V, val);
break;
case V4L2_CID_COLOR_KILLER:
if (val)
tw_andorb(TW68_MISC2, 0xe0, 0xe0);
else
tw_andorb(TW68_MISC2, 0xe0, 0x00);
break;
case V4L2_CID_CHROMA_AGC:
if (val)
tw_andorb(TW68_LOOP, 0x30, 0x20);
else
tw_andorb(TW68_LOOP, 0x30, 0x00);
break;
case V4L2_CID_AUDIO_MUTE:
/* hack to suppress tvtime complaint */
break;
#if 0
case V4L2_CID_AUDIO_VOLUME:
dev->ctl_volume = val;
tw68_tvaudio_setvolume(dev, dev->ctl_volume);
break;
case V4L2_CID_HFLIP:
dev->ctl_mirror = val;
break;
case V4L2_CID_PRIVATE_AUTOMUTE:
{
struct v4l2_priv_tun_config tda9887_cfg;
tda9887_cfg.tuner = TUNER_TDA9887;
tda9887_cfg.priv = &dev->tda9887_conf;
dev->ctl_automute = val;
if (dev->tda9887_conf) {
if (dev->ctl_automute)
dev->tda9887_conf |= TDA9887_AUTOMUTE;
else
dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
tw_call_all(dev, tuner, s_config, &tda9887_cfg);
}
break;
}
#endif
default:
err = -EINVAL;
}
return err;
}
static int tw68_s_ctrl_internal(struct tw68_dev *dev, struct tw68_fh *fh,
struct v4l2_control *c)
{
const struct v4l2_queryctrl *ctrl;
int err;
dprintk(DBG_FLOW, "%s\n", __func__);
if (fh) {
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
err = v4l2_prio_check(&dev->prio, &fh->prio);
#else
err = v4l2_prio_check(&dev->prio, fh->prio);
#endif
if (0 != err)
return err;
}
mutex_lock(&dev->lock);
ctrl = ctrl_by_id(c->id);
if (NULL == ctrl) {
err = -EINVAL;
goto error;
}
dprintk(DBG_BUFF, "%s: name=%s val=%d\n", __func__,
ctrl->name, c->value);
switch (ctrl->type) {
case V4L2_CTRL_TYPE_BOOLEAN:
case V4L2_CTRL_TYPE_MENU:
case V4L2_CTRL_TYPE_INTEGER:
if (c->value < ctrl->minimum)
c->value = ctrl->minimum;
if (c->value > ctrl->maximum)
c->value = ctrl->maximum;
break;
default:
/* nothing */;
};
err = tw68_s_ctrl_value(dev, c->id, c->value);
error:
mutex_unlock(&dev->lock);
return err;
}
static int tw68_s_ctrl(struct file *file, void *f, struct v4l2_control *c)
{
struct tw68_fh *fh = f;
return tw68_s_ctrl_internal(fh->dev, fh, c);
}
/* ------------------------------------------------------------------ */
/*
* Returns a pointer to the currently used queue (e.g. video, vbi, etc.)
*/
static struct videobuf_queue *tw68_queue(struct tw68_fh *fh)
{
struct videobuf_queue *q = NULL;
switch (fh->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
q = &fh->cap;
break;
case V4L2_BUF_TYPE_VBI_CAPTURE:
q = &fh->vbi;
break;
default:
BUG();
}
return q;
}
static int tw68_resource(struct tw68_fh *fh)
{
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
return RESOURCE_VIDEO;
if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
return RESOURCE_VBI;
BUG();
return 0;
}
static int video_open(struct file *file)
{
int minor = video_devdata(file)->minor;
struct tw68_dev *dev;
struct tw68_fh *fh;
enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
int radio = 0;
mutex_lock(&tw68_devlist_lock);
list_for_each_entry(dev, &tw68_devlist, devlist) {
if (dev->video_dev && (dev->video_dev->minor == minor))
goto found;
if (dev->radio_dev && (dev->radio_dev->minor == minor)) {
radio = 1;
goto found;
}
if (dev->vbi_dev && (dev->vbi_dev->minor == minor)) {
type = V4L2_BUF_TYPE_VBI_CAPTURE;
goto found;
}
}
mutex_unlock(&tw68_devlist_lock);
return -ENODEV;
found:
mutex_unlock(&tw68_devlist_lock);
dprintk(DBG_FLOW, "%s: minor=%d radio=%d type=%s\n", __func__, minor,
radio, v4l2_type_names[type]);
/* allocate + initialize per filehandle data */
fh = kzalloc(sizeof(*fh), GFP_KERNEL);
if (NULL == fh)
return -ENOMEM;
file->private_data = fh;
fh->dev = dev;
fh->radio = radio;
fh->type = type;
fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
fh->width = 720;
fh->height = 576;
v4l2_prio_open(&dev->prio, &fh->prio);
videobuf_queue_sg_init(&fh->cap, &video_qops,
&dev->pci->dev, &dev->slock,
V4L2_BUF_TYPE_VIDEO_CAPTURE,
V4L2_FIELD_INTERLACED,
sizeof(struct tw68_buf),
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,37)
fh
#else
fh, &dev->lock
#endif
);
videobuf_queue_sg_init(&fh->vbi, &tw68_vbi_qops,
&dev->pci->dev, &dev->slock,
V4L2_BUF_TYPE_VBI_CAPTURE,
V4L2_FIELD_SEQ_TB,
sizeof(struct tw68_buf),
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,37)
fh
#else
fh, &dev->lock
#endif
);
if (fh->radio) {
/* switch to radio mode */
tw68_tvaudio_setinput(dev, &card(dev).radio);
tw_call_all(dev, tuner, s_radio);
} else {
/* switch to video/vbi mode */
tw68_tvaudio_setinput(dev, dev->input);
}
return 0;
}
static ssize_t
video_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
{
struct tw68_fh *fh = file->private_data;
switch (fh->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
if (res_locked(fh->dev, RESOURCE_VIDEO))
return -EBUSY;
return videobuf_read_one(tw68_queue(fh),
data, count, ppos,
file->f_flags & O_NONBLOCK);
case V4L2_BUF_TYPE_VBI_CAPTURE:
if (!res_get(fh, RESOURCE_VBI))
return -EBUSY;
return videobuf_read_stream(tw68_queue(fh),
data, count, ppos, 1,
file->f_flags & O_NONBLOCK);
break;
default:
BUG();
return 0;
}
}
static unsigned int
video_poll(struct file *file, struct poll_table_struct *wait)
{
struct tw68_fh *fh = file->private_data;
struct videobuf_buffer *buf = NULL;
if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)
return videobuf_poll_stream(file, &fh->vbi, wait);
if (res_check(fh, RESOURCE_VIDEO)) {
if (!list_empty(&fh->cap.stream))
buf = list_entry(fh->cap.stream.next,
struct videobuf_buffer, stream);
} else {
mutex_lock(&fh->cap.vb_lock);
if (UNSET == fh->cap.read_off) {
/* need to capture a new frame */
if (res_locked(fh->dev, RESOURCE_VIDEO))
goto err;
if (0 != fh->cap.ops->buf_prepare(&fh->cap,
fh->cap.read_buf, fh->cap.field))
goto err;
fh->cap.ops->buf_queue(&fh->cap, fh->cap.read_buf);
fh->cap.read_off = 0;
}
mutex_unlock(&fh->cap.vb_lock);
buf = fh->cap.read_buf;
}
if (!buf)
return POLLERR;
poll_wait(file, &buf->done, wait);
if (buf->state == VIDEOBUF_DONE ||
buf->state == VIDEOBUF_ERROR)
return POLLIN | POLLRDNORM;
return 0;
err:
mutex_unlock(&fh->cap.vb_lock);
return POLLERR;
}
static int video_release(struct file *file)
{
struct tw68_fh *fh = file->private_data;
struct tw68_dev *dev = fh->dev;
/* stop video capture */
if (res_check(fh, RESOURCE_VIDEO)) {
videobuf_streamoff(&fh->cap);
res_free(fh , RESOURCE_VIDEO);
}
if (fh->cap.read_buf) {
buffer_release(&fh->cap, fh->cap.read_buf);
kfree(fh->cap.read_buf);
}
/* stop vbi capture */
if (res_check(fh, RESOURCE_VBI)) {
videobuf_stop(&fh->vbi);
res_free(fh, RESOURCE_VBI);
}
#if 0
tw_call_all(dev, core, s_standby, 0);
#endif
/* free stuff */
videobuf_mmap_free(&fh->cap);
videobuf_mmap_free(&fh->vbi);
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
v4l2_prio_close(&dev->prio, &fh->prio);
#else
v4l2_prio_close(&dev->prio, fh->prio);
#endif
file->private_data = NULL;
kfree(fh);
return 0;
}
static int video_mmap(struct file *file, struct vm_area_struct * vma)
{
struct tw68_fh *fh = file->private_data;
return videobuf_mmap_mapper(tw68_queue(fh), vma);
}
/* ------------------------------------------------------------------ */
#if 0
static int tw68_try_get_set_fmt_vbi_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
struct tw68_tvnorm *norm = dev->tvnorm;
f->fmt.vbi.sampling_rate = 6750000 * 4;
f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
f->fmt.vbi.offset = 64 * 4;
f->fmt.vbi.start[0] = norm->vbi_v_start_0;
f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 + 1;
f->fmt.vbi.start[1] = norm->vbi_v_start_1;
f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
#if 0
if (V4L2_STD_PAL == norm->id) {
/* FIXME */
f->fmt.vbi.start[0] += 3;
f->fmt.vbi.start[1] += 3*2;
}
#endif
return 0;
}
#endif
/*
* Note that this routine returns what is stored in the fh structure, and
* does not interrogate any of the device registers.
*/
static int tw68_g_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
dprintk(DBG_FLOW, "%s\n", __func__);
f->fmt.pix.width = fh->width;
f->fmt.pix.height = fh->height;
f->fmt.pix.field = fh->cap.field;
f->fmt.pix.pixelformat = fh->fmt->fourcc;
f->fmt.pix.bytesperline =
(f->fmt.pix.width * (fh->fmt->depth)) >> 3;
f->fmt.pix.sizeimage =
f->fmt.pix.height * f->fmt.pix.bytesperline;
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
return 0;
}
static int tw68_try_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
struct tw68_format *fmt;
enum v4l2_field field;
unsigned int maxw, maxh;
dprintk(DBG_FLOW, "%s\n", __func__);
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
if (NULL == fmt)
return -EINVAL;
field = f->fmt.pix.field;
maxw = min(dev->crop_current.width*4, dev->crop_bounds.width);
maxh = min(dev->crop_current.height*4, dev->crop_bounds.height);
if (V4L2_FIELD_ANY == field) {
field = (f->fmt.pix.height > maxh/2)
? V4L2_FIELD_INTERLACED
: V4L2_FIELD_BOTTOM;
}
switch (field) {
case V4L2_FIELD_TOP:
case V4L2_FIELD_BOTTOM:
break;
case V4L2_FIELD_INTERLACED:
maxh = maxh * 2;
break;
default:
return -EINVAL;
}
f->fmt.pix.field = field;
if (f->fmt.pix.width < 48)
f->fmt.pix.width = 48;
if (f->fmt.pix.height < 32)
f->fmt.pix.height = 32;
if (f->fmt.pix.width > maxw)
f->fmt.pix.width = maxw;
if (f->fmt.pix.height > maxh)
f->fmt.pix.height = maxh;
f->fmt.pix.width &= ~0x03;
f->fmt.pix.bytesperline =
(f->fmt.pix.width * (fmt->depth)) >> 3;
f->fmt.pix.sizeimage =
f->fmt.pix.height * f->fmt.pix.bytesperline;
return 0;
}
/*
* Note that tw68_s_fmt_vid_cap sets the information into the fh structure,
* and it will be used for all future new buffers. However, there could be
* some number of buffers on the "active" chain which will be filled before
* the change takes place.
*/
static int tw68_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
int err;
dprintk(DBG_FLOW, "%s\n", __func__);
err = tw68_try_fmt_vid_cap(file, priv, f);
if (0 != err)
return err;
fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
fh->width = f->fmt.pix.width;
fh->height = f->fmt.pix.height;
fh->cap.field = f->fmt.pix.field;
/*
* The following lines are to make v4l2-test program happy.
* The docs should be checked to assure they make sense.
*/
f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
f->fmt.pix.priv = 0;
return 0;
}
static int tw68_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *c)
{
const struct v4l2_queryctrl *ctrl;
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
dprintk(DBG_FLOW, "%s\n", __func__);
if ((c->id < V4L2_CID_BASE || c->id >= V4L2_CID_LASTP1)
#if 0
&& (c->id < V4L2_CID_PRIVATE_BASE ||
c->id >= V4L2_CID_PRIVATE_LASTP1)
#endif
)
return -EINVAL;
ctrl = ctrl_by_id(c->id);
if (NULL == ctrl)
return -EINVAL;
*c = *ctrl;
return 0;
}
static int tw68_enum_input(struct file *file, void *priv,
struct v4l2_input *i)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
unsigned int n;
n = i->index;
dprintk(DBG_FLOW, "%s: index is %d\n", __func__, n);
if (n >= TW68_INPUT_MAX) {
dprintk(DBG_FLOW, "%s: INPUT_MAX reached\n", __func__);
return -EINVAL;
}
if (NULL == card_in(dev, n).name) {
dprintk(DBG_FLOW, "%s: End of list\n", __func__);
return -EINVAL;
}
memset(i, 0, sizeof(*i));
i->index = n;
i->type = V4L2_INPUT_TYPE_CAMERA;
strcpy(i->name, card_in(dev, n).name);
if (card_in(dev, n).tv)
i->type = V4L2_INPUT_TYPE_TUNER;
i->audioset = 1;
/* If the query is for the current input, get live data */
if (n == dev->hw_input->vmux) {
int v1 = tw_readb(TW68_STATUS1);
int v2 = tw_readb(TW68_MVSN);
if (0 != (v1 & (1 << 7)))
i->status |= V4L2_IN_ST_NO_SYNC;
if (0 != (v1 & (1 << 6)))
i->status |= V4L2_IN_ST_NO_H_LOCK;
if (0 != (v1 & (1 << 2)))
i->status |= V4L2_IN_ST_NO_SIGNAL;
if (0 != (v1 & 1 << 1))
i->status |= V4L2_IN_ST_NO_COLOR;
if (0 != (v2 & (1 << 2)))
i->status |= V4L2_IN_ST_MACROVISION;
}
i->std = TW68_NORMS;
return 0;
}
static int tw68_g_input(struct file *file, void *priv, unsigned int *i)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
dprintk(DBG_FLOW, "%s\n", __func__);
*i = dev->input->vmux;
return 0;
}
static int tw68_s_input(struct file *file, void *priv, unsigned int i)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
int err;
dprintk(DBG_FLOW, "%s\n", __func__);
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
err = v4l2_prio_check(&dev->prio, &fh->prio);
#else
err = v4l2_prio_check(&dev->prio, fh->prio);
#endif
if (0 != err)
if (0 != err)
return err;
if (i < 0 || i >= TW68_INPUT_MAX)
return -EINVAL;
if (NULL == card_in(dev, i).name)
return -EINVAL;
mutex_lock(&dev->lock);
video_mux(dev, i);
mutex_unlock(&dev->lock);
return 0;
}
static int tw68_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
unsigned int tuner_type = dev->tuner_type;
dprintk(DBG_FLOW, "%s\n", __func__);
strcpy(cap->driver, "tw68");
strlcpy(cap->card, tw68_boards[dev->board].name,
sizeof(cap->card));
sprintf(cap->bus_info, "PCI:%s", pci_name(dev->pci));
cap->version = TW68_VERSION_CODE;
cap->capabilities =
V4L2_CAP_VIDEO_CAPTURE |
V4L2_CAP_VBI_CAPTURE |
V4L2_CAP_READWRITE |
V4L2_CAP_STREAMING |
V4L2_CAP_TUNER;
if ((tuner_type == TUNER_ABSENT) || (tuner_type == UNSET))
cap->capabilities &= ~V4L2_CAP_TUNER;
return 0;
}
static int tw68_s_std_internal(struct tw68_dev *dev, struct tw68_fh *fh,
v4l2_std_id *id)
{
/* unsigned long flags; */
unsigned int i;
v4l2_std_id fixup;
int err;
dprintk(DBG_FLOW, "%s\n", __func__);
if (fh) {
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
err = v4l2_prio_check(&dev->prio, &fh->prio);
#else
err = v4l2_prio_check(&dev->prio, fh->prio);
#endif
if (0 != err)
if (0 != err)
return err;
}
/* Look for match on complete norm id (may have mult bits) */
for (i = 0; i < TVNORMS; i++) {
if (*id == tvnorms[i].id)
break;
}
/* If no exact match, look for norm which contains this one */
if (i == TVNORMS)
for (i = 0; i < TVNORMS; i++) {
if (*id & tvnorms[i].id)
break;
}
/* If still not matched, give up */
if (i == TVNORMS)
return -EINVAL;
/* TODO - verify this additional work with SECAM applies to TW */
if ((*id & V4L2_STD_SECAM) && (secam[0] != '-')) {
if (secam[0] == 'L' || secam[0] == 'l') {
if (secam[1] == 'C' || secam[1] == 'c')
fixup = V4L2_STD_SECAM_LC;
else
fixup = V4L2_STD_SECAM_L;
} else {
if (secam[0] == 'D' || secam[0] == 'd')
fixup = V4L2_STD_SECAM_DK;
else
fixup = V4L2_STD_SECAM;
}
for (i = 0; i < TVNORMS; i++)
if (fixup == tvnorms[i].id)
break;
}
*id = tvnorms[i].id;
mutex_lock(&dev->lock);
set_tvnorm(dev, &tvnorms[i]); /* do the actual setting */
tw68_tvaudio_do_scan(dev);
mutex_unlock(&dev->lock);
return 0;
}
static int tw68_s_std(struct file *file, void *priv, v4l2_std_id *id)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
dprintk(DBG_FLOW, "%s\n", __func__);
return tw68_s_std_internal(fh->dev, fh, id);
}
static int tw68_g_std(struct file *file, void *priv, v4l2_std_id *id)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
dprintk(DBG_FLOW, "%s\n", __func__);
*id = dev->tvnorm->id;
return 0;
}
static int tw68_g_tuner(struct file *file, void *priv,
struct v4l2_tuner *t)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
int n;
if (unlikely(UNSET == dev->tuner_type))
return -EINVAL;
if (0 != t->index)
return -EINVAL;
memset(t, 0, sizeof(*t));
for (n = 0; n < TW68_INPUT_MAX; n++)
if (card_in(dev, n).tv)
break;
if (n == TW68_INPUT_MAX)
return -EINVAL;
#if 0
if (NULL != card_in(dev, n).name) {
strcpy(t->name, "Television");
t->type = V4L2_TUNER_ANALOG_TV;
t->capability = V4L2_TUNER_CAP_NORM |
V4L2_TUNER_CAP_STEREO |
V4L2_TUNER_CAP_LANG1 |
V4L2_TUNER_CAP_LANG2;
t->rangehigh = 0xffffffffUL;
t->rxsubchans = tw68_tvaudio_getstereo(dev);
t->audmode = tw68_tvaudio_rx2mode(t->rxsubchans);
}
if (0 != (saa_readb(TW68_STATUS_VIDEO1) & 0x03))
t->signal = 0xffff;
#endif
return 0;
}
static int tw68_s_tuner(struct file *file, void *priv,
struct v4l2_tuner *t)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
int err;
#if 0
int rx, mode
#endif
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
err = v4l2_prio_check(&dev->prio, &fh->prio);
#else
err = v4l2_prio_check(&dev->prio, fh->prio);
#endif
if (0 != err)
if (0 != err)
return err;
#if 0
mode = dev->thread.mode;
if (UNSET == mode) {
rx = tw68_tvaudio_getstereo(dev);
mode = tw68_tvaudio_rx2mode(t->rxsubchans);
}
if (mode != t->audmode)
dev->thread.mode = t->audmode;
#endif
return 0;
}
static int tw68_g_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
if (unlikely(dev->tuner_type))
return -EINVAL;
f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
/* f->frequency = dev->ctl_freq; */
return 0;
}
static int tw68_s_frequency(struct file *file, void *priv,
struct v4l2_frequency *f)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
int err;
if (unlikely(UNSET == dev->tuner_type))
return -EINVAL;
#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,34)
err = v4l2_prio_check(&dev->prio, &fh->prio);
#else
err = v4l2_prio_check(&dev->prio, fh->prio);
#endif
if (0 != err)
if (0 != err)
return err;
if (0 != f->tuner)
return -EINVAL;
if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
return -EINVAL;
if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
return -EINVAL;
mutex_lock(&dev->lock);
/* dev->ctl_freq = f->frequency; */
tw_call_all(dev, tuner, s_frequency, f);
tw68_tvaudio_do_scan(dev);
mutex_unlock(&dev->lock);
return 0;
}
static int tw68_g_audio(struct file *file, void *priv, struct v4l2_audio *a)
{
strcpy(a->name, "audio");
return 0;
}
static int tw68_s_audio(struct file *file, void *priv, struct v4l2_audio *a)
{
return 0;
}
static int tw68_g_priority(struct file *file, void *f, enum v4l2_priority *p)
{
struct tw68_fh *fh = f;
struct tw68_dev *dev = fh->dev;
dprintk(DBG_FLOW, "%s\n", __func__);
*p = v4l2_prio_max(&dev->prio);
return 0;
}
static int tw68_s_priority(struct file *file, void *f,
enum v4l2_priority prio)
{
struct tw68_fh *fh = f;
struct tw68_dev *dev = fh->dev;
dprintk(DBG_FLOW, "%s\n", __func__);
return v4l2_prio_change(&dev->prio, &fh->prio, prio);
}
static int tw68_enum_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_fmtdesc *f)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
dprintk(DBG_FLOW, "%s\n", __func__);
if (f->index >= FORMATS)
return -EINVAL;
strlcpy(f->description, formats[f->index].name,
sizeof(f->description));
f->pixelformat = formats[f->index].fourcc;
return 0;
}
static int tw68_cropcap(struct file *file, void *priv,
struct v4l2_cropcap *cap)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
dprintk(DBG_FLOW, "%s\n", __func__);
if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
cap->bounds = dev->crop_bounds;
cap->defrect = dev->crop_defrect;
cap->pixelaspect.numerator = 1;
cap->pixelaspect.denominator = 1;
if (dev->tvnorm->id & V4L2_STD_525_60) {
cap->pixelaspect.numerator = 11;
cap->pixelaspect.denominator = 10;
}
if (dev->tvnorm->id & V4L2_STD_625_50) {
cap->pixelaspect.numerator = 54;
cap->pixelaspect.denominator = 59;
}
return 0;
}
static int tw68_g_crop(struct file *file, void *f, struct v4l2_crop *crop)
{
struct tw68_fh *fh = f;
struct tw68_dev *dev = fh->dev;
dprintk(DBG_FLOW, "%s\n", __func__);
if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
return -EINVAL;
crop->c = dev->crop_current;
return 0;
}
static int tw68_s_crop(struct file *file, void *f, struct v4l2_crop *crop)
{
struct tw68_fh *fh = f;
struct tw68_dev *dev = fh->dev;
struct v4l2_rect *b = &dev->crop_bounds;
dprintk(DBG_FLOW, "%s\n", __func__);
if (res_locked(fh->dev, RESOURCE_VIDEO))
return -EBUSY;
if ((crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) ||
(crop->c.height < 0) || (crop->c.width < 0)) {
dprintk(DBG_UNEXPECTED, "%s: invalid request\n", __func__);
return -EINVAL;
}
if (crop->c.top < b->top)
crop->c.top = b->top;
if (crop->c.top > b->top + b->height)
crop->c.top = b->top + b->height;
if (crop->c.height > b->top - crop->c.top + b->height)
crop->c.height = b->top - crop->c.top + b->height;
if (crop->c.left < b->left)
crop->c.left = b->left;
if (crop->c.left > b->left + b->width)
crop->c.left = b->left + b->width;
if (crop->c.width > b->left - crop->c.left + b->width)
crop->c.width = b->left - crop->c.left + b->width;
dprintk(DBG_FLOW, "%s: setting cropping rectangle: top=%d, left=%d, "
"width=%d, height=%d\n", __func__, crop->c.top,
crop->c.left, crop->c.width, crop->c.height);
dev->crop_current = crop->c;
return 0;
}
/*
* Wrappers for the v4l2_ioctl_ops functions
*/
#ifdef CONFIG_VIDEO_V4L1_COMPAT
static int vidiocgmbuf(struct file *file, void *priv, struct video_mbuf *mbuf)
{
struct tw68_fh *fh = file->private_data;
return videobuf_cgmbuf(tw68_queue(fh), mbuf, 8);
}
#endif
static int tw68_reqbufs(struct file *file, void *priv,
struct v4l2_requestbuffers *p)
{
struct tw68_fh *fh = priv;
return videobuf_reqbufs(tw68_queue(fh), p);
}
static int tw68_querybuf(struct file *file, void *priv,
struct v4l2_buffer *b)
{
struct tw68_fh *fh = priv;
return videobuf_querybuf(tw68_queue(fh), b);
}
static int tw68_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
{
struct tw68_fh *fh = priv;
return videobuf_qbuf(tw68_queue(fh), b);
}
static int tw68_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
{
struct tw68_fh *fh = priv;
return videobuf_dqbuf(tw68_queue(fh), b,
file->f_flags & O_NONBLOCK);
}
static int tw68_streamon(struct file *file, void *priv,
enum v4l2_buf_type type)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
int res = tw68_resource(fh);
dprintk(DBG_FLOW, "%s\n", __func__);
if (!res_get(fh, res))
return -EBUSY;
tw68_buffer_requeue(dev, &dev->video_q);
return videobuf_streamon(tw68_queue(fh));
}
static int tw68_streamoff(struct file *file, void *priv,
enum v4l2_buf_type type)
{
int err;
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
int res = tw68_resource(fh);
dprintk(DBG_FLOW, "%s\n", __func__);
err = videobuf_streamoff(tw68_queue(fh));
if (err < 0)
return err;
res_free(fh, res);
return 0;
}
#ifdef CONFIG_VIDEO_ADV_DEBUG
/*
* Used strictly for internal development and debugging, this routine
* prints out the current register contents for the tw68xx device.
*/
static void tw68_dump_regs(struct tw68_dev *dev)
{
unsigned char line[80];
int i, j, k;
unsigned char *cptr;
printk(KERN_DEBUG "Full dump of TW68 registers:\n");
/* First we do the PCI regs, 8 4-byte regs per line */
for (i = 0; i < 0x100; i += 32) {
cptr = line;
cptr += sprintf(cptr, "%03x ", i);
/* j steps through the next 4 words */
for (j = i; j < i + 16; j += 4)
cptr += sprintf(cptr, "%08x ", tw_readl(j));
*cptr++ = ' ';
for (; j < i + 32; j += 4)
cptr += sprintf(cptr, "%08x ", tw_readl(j));
*cptr++ = '\n';
*cptr = 0;
printk(KERN_DEBUG "%s", line);
}
/* Next the control regs, which are single-byte, address mod 4 */
while (i < 0x400) {
cptr = line;
cptr += sprintf(cptr, "%03x ", i);
/* Print out 4 groups of 4 bytes */
for (j = 0; j < 4; j++) {
for (k = 0; k < 4; k++) {
cptr += sprintf(cptr, "%02x ",
tw_readb(i));
i += 4;
}
*cptr++ = ' ';
}
*cptr++ = '\n';
*cptr = 0;
printk(KERN_DEBUG "%s", line);
}
}
static int vidioc_log_status(struct file *file, void *priv)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev;
tw68_dump_regs(dev);
return 0;
}
static int vidioc_g_register(struct file *file, void *priv,
struct v4l2_dbg_register *reg)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev; /* needed for tw_readb */
dprintk(DBG_FLOW, "%s\n", __func__);
if (!v4l2_chip_match_host(&reg->match))
dprintk(DBG_UNEXPECTED, "%s: match failed\n", __func__);
return -EINVAL;
if (reg->size == 1)
reg->val = tw_readb(reg->reg);
else
reg->val = tw_readl(reg->reg);
return 0;
}
static int vidioc_s_register(struct file *file, void *priv,
struct v4l2_dbg_register *reg)
{
struct tw68_fh *fh = priv;
struct tw68_dev *dev = fh->dev; /* needed for tw_writeb */
dprintk(DBG_FLOW, "%s: request to set reg 0x%04x to 0x%02x\n",
__func__, (unsigned int)reg->reg, (unsigned int)reg->val);
if (!v4l2_chip_match_host(&reg->match)) {
dprintk(DBG_UNEXPECTED, "%s: match failed\n", __func__);
return -EINVAL;
}
if (reg->size == 1)
tw_writeb(reg->reg, reg->val);
else
tw_writel(reg->reg & 0xffff, reg->val);
return 0;
}
#endif
static const struct v4l2_file_operations video_fops = {
.owner = THIS_MODULE,
.open = video_open,
.release = video_release,
.read = video_read,
.poll = video_poll,
.mmap = video_mmap,
.ioctl = video_ioctl2,
};
static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_querycap = tw68_querycap,
.vidioc_enum_fmt_vid_cap = tw68_enum_fmt_vid_cap,
.vidioc_reqbufs = tw68_reqbufs,
.vidioc_querybuf = tw68_querybuf,
.vidioc_qbuf = tw68_qbuf,
.vidioc_dqbuf = tw68_dqbuf,
.vidioc_s_std = tw68_s_std,
.vidioc_g_std = tw68_g_std,
.vidioc_enum_input = tw68_enum_input,
.vidioc_g_input = tw68_g_input,
.vidioc_s_input = tw68_s_input,
.vidioc_queryctrl = tw68_queryctrl,
.vidioc_g_ctrl = tw68_g_ctrl,
.vidioc_s_ctrl = tw68_s_ctrl,
.vidioc_streamon = tw68_streamon,
.vidioc_streamoff = tw68_streamoff,
.vidioc_g_priority = tw68_g_priority,
.vidioc_s_priority = tw68_s_priority,
.vidioc_g_fmt_vid_cap = tw68_g_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = tw68_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = tw68_s_fmt_vid_cap,
.vidioc_cropcap = tw68_cropcap,
.vidioc_g_crop = tw68_g_crop,
.vidioc_s_crop = tw68_s_crop,
/*
* Functions not yet implemented / not yet passing tests.
*/
#if 0
.vidioc_g_fmt_vbi_cap = tw68_try_get_set_fmt_vbi_cap,
.vidioc_try_fmt_vbi_cap = tw68_try_get_set_fmt_vbi_cap,
.vidioc_s_fmt_vbi_cap = tw68_try_get_set_fmt_vbi_cap,
#endif
.vidioc_g_audio = tw68_g_audio,
.vidioc_s_audio = tw68_s_audio,
.vidioc_g_tuner = tw68_g_tuner,
.vidioc_s_tuner = tw68_s_tuner,
.vidioc_g_frequency = tw68_g_frequency,
.vidioc_s_frequency = tw68_s_frequency,
#ifdef CONFIG_VIDEO_V4L1_COMPAT
.vidiocgmbuf = vidiocgmbuf,
#endif
#ifdef CONFIG_VIDEO_ADV_DEBUG
.vidioc_log_status = vidioc_log_status,
.vidioc_g_register = vidioc_g_register,
.vidioc_s_register = vidioc_s_register,
#endif
};
/* ------------------------------------------------------------------ */
/* exported stuff */
struct video_device tw68_video_template = {
.name = "tw68_video",
.fops = &video_fops,
.ioctl_ops = &video_ioctl_ops,
.minor = -1,
.tvnorms = TW68_NORMS,
.current_norm = V4L2_STD_PAL,
};
struct video_device tw68_radio_template = {
.name = "tw68_radio",
};
int tw68_videoport_init(struct tw68_dev *dev)
{
return 0;
}
void tw68_set_tvnorm_hw(struct tw68_dev *dev)
{
tw_andorb(TW68_SDT, 0x07, dev->tvnorm->format);
return;
}
int tw68_video_init1(struct tw68_dev *dev)
{
int i;
dprintk(DBG_FLOW, "%s\n", __func__);
/* sanitycheck insmod options */
if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
gbuffers = 2;
if (gbufsz < 0 || gbufsz > gbufsz_max)
gbufsz = gbufsz_max;
gbufsz = (gbufsz + PAGE_SIZE - 1) & PAGE_MASK;
/* put some sensible defaults into the data structures ... */
for (i = 0; i < CTRLS; i++)
tw68_s_ctrl_value(dev, video_ctrls[i].id,
video_ctrls[i].default_value);
#if 0
if (dev->tda9887_conf && dev->ctl_automute)
dev->tda9887_conf |= TDA9887_AUTOMUTE;
dev->automute = 0;
#endif
INIT_LIST_HEAD(&dev->video_q.queued);
INIT_LIST_HEAD(&dev->video_q.active);
init_timer(&dev->video_q.timeout);
dev->video_q.timeout.function = tw68_buffer_timeout;
dev->video_q.timeout.data = (unsigned long)(&dev->video_q);
dev->video_q.dev = dev;
dev->video_q.buf_compat = tw68_check_video_fmt;
dev->video_q.start_dma = tw68_video_start_dma;
tw68_risc_stopper(dev->pci, &dev->video_q.stopper);
if (tw68_boards[dev->board].video_out)
tw68_videoport_init(dev);
return 0;
}
int tw68_video_init2(struct tw68_dev *dev)
{
dprintk(DBG_FLOW, "%s\n", __func__);
set_tvnorm(dev, &tvnorms[0]);
video_mux(dev, 0);
/*
tw68_tvaudio_setmut(dev);
tw68_tvaudio_setvolume(dev, dev->ctl_volume);
*/
return 0;
}
/*
* tw68_irq_video_signalchange
*
* TODO:
* Check for presence of video signal. If not present, mute audio.
* If present, log type of signal present.
*/
void tw68_irq_video_signalchange(struct tw68_dev *dev)
{
return;
}
/*
* tw68_irq_video_done
*/
void tw68_irq_video_done(struct tw68_dev *dev, unsigned long status)
{
__u32 reg;
/* reset interrupts handled by this routine */
tw_writel(TW68_INTSTAT, status);
/*
* Check most likely first
*
* DMAPI shows we have reached the end of the risc code
* for the current buffer.
*/
if (status & TW68_DMAPI) {
struct tw68_dmaqueue *q = &dev->video_q;
dprintk(DBG_FLOW | DBG_TESTING, "DMAPI interrupt\n");
spin_lock(&dev->slock);
/*
* tw68_wakeup will take care of the buffer handling,
* plus any non-video requirements.
*/
tw68_wakeup(q, &dev->video_fieldcount);
spin_unlock(&dev->slock);
/* Check whether we have gotten into 'stopper' code */
reg = tw_readl(TW68_DMAP_PP);
if ((reg >= q->stopper.dma) &&
(reg < q->stopper.dma + q->stopper.size)) {
/* Yes - log the information */
dprintk(DBG_FLOW | DBG_TESTING,
"%s: stopper risc code entered\n", __func__);
}
status &= ~(TW68_DMAPI);
if (0 == status)
return;
}
if (status & (TW68_VLOCK | TW68_HLOCK)) { /* lost sync */
dprintk(DBG_UNUSUAL, "Lost sync\n");
}
if (status & TW68_PABORT) { /* TODO - what should we do? */
dprintk(DBG_UNEXPECTED, "PABORT interrupt\n");
}
if (status & TW68_DMAPERR) {
dprintk(DBG_UNEXPECTED, "DMAPERR interrupt\n");
#if 0
/* Stop risc & fifo */
tw_clearl(TW68_DMAC, TW68_DMAP_EN | TW68_FIFO_EN);
tw_clearl(TW68_INTMASK, dev->board_virqmask);
dev->pci_irqmask &= ~dev->board_virqmask;
#endif
}
/*
* On TW6800, FDMIS is apparently generated if video input is switched
* during operation. Therefore, it is not enabled for that chip.
*/
if (status & TW68_FDMIS) { /* logic error somewhere */
dprintk(DBG_UNEXPECTED, "FDMIS interrupt\n");
/* Stop risc & fifo */
// tw_clearl(TW68_DMAC, TW68_DMAP_EN | TW68_FIFO_EN);
// tw_clearl(TW68_INTMASK, dev->board_virqmask);
// dev->pci_irqmask &= ~dev->board_virqmask;
}
if (status & TW68_FFOF) { /* probably a logic error */
reg = tw_readl(TW68_DMAC) & TW68_FIFO_EN;
tw_clearl(TW68_DMAC, TW68_FIFO_EN);
dprintk(DBG_UNUSUAL, "FFOF interrupt\n");
tw_setl(TW68_DMAC, reg);
}
if (status & TW68_FFERR)
dprintk(DBG_UNEXPECTED, "FFERR interrupt\n");
return;
}