| /* |
| * |
| * device driver for philips saa7134 based TV cards |
| * oss dsp interface |
| * |
| * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs] |
| * 2005 conversion to standalone module: |
| * Ricardo Cerqueira <v4l@cerqueira.org> |
| * |
| * 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., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #include <linux/init.h> |
| #include <linux/list.h> |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/interrupt.h> |
| #include <linux/slab.h> |
| #include <linux/sound.h> |
| #include <linux/soundcard.h> |
| |
| #include "saa7134-reg.h" |
| #include "saa7134.h" |
| |
| /* ------------------------------------------------------------------ */ |
| |
| static unsigned int debug = 0; |
| module_param(debug, int, 0644); |
| MODULE_PARM_DESC(debug,"enable debug messages [oss]"); |
| |
| static unsigned int rate = 0; |
| module_param(rate, int, 0444); |
| MODULE_PARM_DESC(rate,"sample rate (valid are: 32000,48000)"); |
| |
| static unsigned int dsp_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET }; |
| MODULE_PARM_DESC(dsp_nr, "device numbers for SAA7134 capture interface(s)."); |
| module_param_array(dsp_nr, int, NULL, 0444); |
| |
| static unsigned int mixer_nr[] = {[0 ... (SAA7134_MAXBOARDS - 1)] = UNSET }; |
| MODULE_PARM_DESC(mixer_nr, "mixer numbers for SAA7134 capture interface(s)."); |
| module_param_array(mixer_nr, int, NULL, 0444); |
| |
| #define dprintk(fmt, arg...) if (debug) \ |
| printk(KERN_DEBUG "%s/oss: " fmt, dev->name , ## arg) |
| |
| |
| /* ------------------------------------------------------------------ */ |
| |
| static int dsp_buffer_conf(struct saa7134_dev *dev, int blksize, int blocks) |
| { |
| if (blksize < 0x100) |
| blksize = 0x100; |
| if (blksize > 0x10000) |
| blksize = 0x10000; |
| |
| if (blocks < 2) |
| blocks = 2; |
| if ((blksize * blocks) > 1024*1024) |
| blocks = 1024*1024 / blksize; |
| |
| dev->dmasound.blocks = blocks; |
| dev->dmasound.blksize = blksize; |
| dev->dmasound.bufsize = blksize * blocks; |
| |
| dprintk("buffer config: %d blocks / %d bytes, %d kB total\n", |
| blocks,blksize,blksize * blocks / 1024); |
| return 0; |
| } |
| |
| static int dsp_buffer_init(struct saa7134_dev *dev) |
| { |
| int err; |
| |
| BUG_ON(!dev->dmasound.bufsize); |
| videobuf_dma_init(&dev->dmasound.dma); |
| err = videobuf_dma_init_kernel(&dev->dmasound.dma, PCI_DMA_FROMDEVICE, |
| (dev->dmasound.bufsize + PAGE_SIZE) >> PAGE_SHIFT); |
| if (0 != err) |
| return err; |
| return 0; |
| } |
| |
| static int dsp_buffer_free(struct saa7134_dev *dev) |
| { |
| BUG_ON(!dev->dmasound.blksize); |
| videobuf_dma_free(&dev->dmasound.dma); |
| dev->dmasound.blocks = 0; |
| dev->dmasound.blksize = 0; |
| dev->dmasound.bufsize = 0; |
| return 0; |
| } |
| |
| static void dsp_dma_start(struct saa7134_dev *dev) |
| { |
| dev->dmasound.dma_blk = 0; |
| dev->dmasound.dma_running = 1; |
| saa7134_set_dmabits(dev); |
| } |
| |
| static void dsp_dma_stop(struct saa7134_dev *dev) |
| { |
| dev->dmasound.dma_blk = -1; |
| dev->dmasound.dma_running = 0; |
| saa7134_set_dmabits(dev); |
| } |
| |
| static int dsp_rec_start(struct saa7134_dev *dev) |
| { |
| int err, bswap, sign; |
| u32 fmt, control; |
| unsigned long flags; |
| |
| /* prepare buffer */ |
| if (0 != (err = videobuf_pci_dma_map(dev->pci,&dev->dmasound.dma))) |
| return err; |
| if (0 != (err = saa7134_pgtable_alloc(dev->pci,&dev->dmasound.pt))) |
| goto fail1; |
| if (0 != (err = saa7134_pgtable_build(dev->pci,&dev->dmasound.pt, |
| dev->dmasound.dma.sglist, |
| dev->dmasound.dma.sglen, |
| 0))) |
| goto fail2; |
| |
| /* sample format */ |
| switch (dev->dmasound.afmt) { |
| case AFMT_U8: |
| case AFMT_S8: fmt = 0x00; break; |
| case AFMT_U16_LE: |
| case AFMT_U16_BE: |
| case AFMT_S16_LE: |
| case AFMT_S16_BE: fmt = 0x01; break; |
| default: |
| err = -EINVAL; |
| goto fail2; |
| } |
| |
| switch (dev->dmasound.afmt) { |
| case AFMT_S8: |
| case AFMT_S16_LE: |
| case AFMT_S16_BE: sign = 1; break; |
| default: sign = 0; break; |
| } |
| |
| switch (dev->dmasound.afmt) { |
| case AFMT_U16_BE: |
| case AFMT_S16_BE: bswap = 1; break; |
| default: bswap = 0; break; |
| } |
| |
| switch (dev->pci->device) { |
| case PCI_DEVICE_ID_PHILIPS_SAA7134: |
| if (1 == dev->dmasound.channels) |
| fmt |= (1 << 3); |
| if (2 == dev->dmasound.channels) |
| fmt |= (3 << 3); |
| if (sign) |
| fmt |= 0x04; |
| fmt |= (TV == dev->dmasound.input) ? 0xc0 : 0x80; |
| |
| saa_writeb(SAA7134_NUM_SAMPLES0, ((dev->dmasound.blksize - 1) & 0x0000ff)); |
| saa_writeb(SAA7134_NUM_SAMPLES1, ((dev->dmasound.blksize - 1) & 0x00ff00) >> 8); |
| saa_writeb(SAA7134_NUM_SAMPLES2, ((dev->dmasound.blksize - 1) & 0xff0000) >> 16); |
| saa_writeb(SAA7134_AUDIO_FORMAT_CTRL, fmt); |
| |
| break; |
| case PCI_DEVICE_ID_PHILIPS_SAA7133: |
| case PCI_DEVICE_ID_PHILIPS_SAA7135: |
| if (1 == dev->dmasound.channels) |
| fmt |= (1 << 4); |
| if (2 == dev->dmasound.channels) |
| fmt |= (2 << 4); |
| if (!sign) |
| fmt |= 0x04; |
| saa_writel(SAA7133_NUM_SAMPLES, dev->dmasound.blksize -4); |
| saa_writel(SAA7133_AUDIO_CHANNEL, 0x543210 | (fmt << 24)); |
| break; |
| } |
| dprintk("rec_start: afmt=%d ch=%d => fmt=0x%x swap=%c\n", |
| dev->dmasound.afmt, dev->dmasound.channels, fmt, |
| bswap ? 'b' : '-'); |
| |
| /* dma: setup channel 6 (= AUDIO) */ |
| control = SAA7134_RS_CONTROL_BURST_16 | |
| SAA7134_RS_CONTROL_ME | |
| (dev->dmasound.pt.dma >> 12); |
| if (bswap) |
| control |= SAA7134_RS_CONTROL_BSWAP; |
| saa_writel(SAA7134_RS_BA1(6),0); |
| saa_writel(SAA7134_RS_BA2(6),dev->dmasound.blksize); |
| saa_writel(SAA7134_RS_PITCH(6),0); |
| saa_writel(SAA7134_RS_CONTROL(6),control); |
| |
| /* start dma */ |
| dev->dmasound.recording_on = 1; |
| spin_lock_irqsave(&dev->slock,flags); |
| dsp_dma_start(dev); |
| spin_unlock_irqrestore(&dev->slock,flags); |
| return 0; |
| |
| fail2: |
| saa7134_pgtable_free(dev->pci,&dev->dmasound.pt); |
| fail1: |
| videobuf_pci_dma_unmap(dev->pci,&dev->dmasound.dma); |
| return err; |
| } |
| |
| static int dsp_rec_stop(struct saa7134_dev *dev) |
| { |
| unsigned long flags; |
| |
| dprintk("rec_stop dma_blk=%d\n",dev->dmasound.dma_blk); |
| |
| /* stop dma */ |
| dev->dmasound.recording_on = 0; |
| spin_lock_irqsave(&dev->slock,flags); |
| dsp_dma_stop(dev); |
| spin_unlock_irqrestore(&dev->slock,flags); |
| |
| /* unlock buffer */ |
| saa7134_pgtable_free(dev->pci,&dev->dmasound.pt); |
| videobuf_pci_dma_unmap(dev->pci,&dev->dmasound.dma); |
| return 0; |
| } |
| |
| /* ------------------------------------------------------------------ */ |
| |
| static int dsp_open(struct inode *inode, struct file *file) |
| { |
| int minor = iminor(inode); |
| struct saa7134_dev *dev; |
| int err; |
| |
| list_for_each_entry(dev, &saa7134_devlist, devlist) |
| if (dev->dmasound.minor_dsp == minor) |
| goto found; |
| return -ENODEV; |
| found: |
| |
| mutex_lock(&dev->dmasound.lock); |
| err = -EBUSY; |
| if (dev->dmasound.users_dsp) |
| goto fail1; |
| dev->dmasound.users_dsp++; |
| file->private_data = dev; |
| |
| dev->dmasound.afmt = AFMT_U8; |
| dev->dmasound.channels = 1; |
| dev->dmasound.read_count = 0; |
| dev->dmasound.read_offset = 0; |
| dsp_buffer_conf(dev,PAGE_SIZE,64); |
| err = dsp_buffer_init(dev); |
| if (0 != err) |
| goto fail2; |
| |
| mutex_unlock(&dev->dmasound.lock); |
| return 0; |
| |
| fail2: |
| dev->dmasound.users_dsp--; |
| fail1: |
| mutex_unlock(&dev->dmasound.lock); |
| return err; |
| } |
| |
| static int dsp_release(struct inode *inode, struct file *file) |
| { |
| struct saa7134_dev *dev = file->private_data; |
| |
| mutex_lock(&dev->dmasound.lock); |
| if (dev->dmasound.recording_on) |
| dsp_rec_stop(dev); |
| dsp_buffer_free(dev); |
| dev->dmasound.users_dsp--; |
| file->private_data = NULL; |
| mutex_unlock(&dev->dmasound.lock); |
| return 0; |
| } |
| |
| static ssize_t dsp_read(struct file *file, char __user *buffer, |
| size_t count, loff_t *ppos) |
| { |
| struct saa7134_dev *dev = file->private_data; |
| DECLARE_WAITQUEUE(wait, current); |
| unsigned int bytes; |
| unsigned long flags; |
| int err,ret = 0; |
| |
| add_wait_queue(&dev->dmasound.wq, &wait); |
| mutex_lock(&dev->dmasound.lock); |
| while (count > 0) { |
| /* wait for data if needed */ |
| if (0 == dev->dmasound.read_count) { |
| if (!dev->dmasound.recording_on) { |
| err = dsp_rec_start(dev); |
| if (err < 0) { |
| if (0 == ret) |
| ret = err; |
| break; |
| } |
| } |
| if (dev->dmasound.recording_on && |
| !dev->dmasound.dma_running) { |
| /* recover from overruns */ |
| spin_lock_irqsave(&dev->slock,flags); |
| dsp_dma_start(dev); |
| spin_unlock_irqrestore(&dev->slock,flags); |
| } |
| if (file->f_flags & O_NONBLOCK) { |
| if (0 == ret) |
| ret = -EAGAIN; |
| break; |
| } |
| mutex_unlock(&dev->dmasound.lock); |
| set_current_state(TASK_INTERRUPTIBLE); |
| if (0 == dev->dmasound.read_count) |
| schedule(); |
| set_current_state(TASK_RUNNING); |
| mutex_lock(&dev->dmasound.lock); |
| if (signal_pending(current)) { |
| if (0 == ret) |
| ret = -EINTR; |
| break; |
| } |
| } |
| |
| /* copy data to userspace */ |
| bytes = count; |
| if (bytes > dev->dmasound.read_count) |
| bytes = dev->dmasound.read_count; |
| if (bytes > dev->dmasound.bufsize - dev->dmasound.read_offset) |
| bytes = dev->dmasound.bufsize - dev->dmasound.read_offset; |
| if (copy_to_user(buffer + ret, |
| dev->dmasound.dma.vmalloc + dev->dmasound.read_offset, |
| bytes)) { |
| if (0 == ret) |
| ret = -EFAULT; |
| break; |
| } |
| |
| ret += bytes; |
| count -= bytes; |
| dev->dmasound.read_count -= bytes; |
| dev->dmasound.read_offset += bytes; |
| if (dev->dmasound.read_offset == dev->dmasound.bufsize) |
| dev->dmasound.read_offset = 0; |
| } |
| mutex_unlock(&dev->dmasound.lock); |
| remove_wait_queue(&dev->dmasound.wq, &wait); |
| return ret; |
| } |
| |
| static ssize_t dsp_write(struct file *file, const char __user *buffer, |
| size_t count, loff_t *ppos) |
| { |
| return -EINVAL; |
| } |
| |
| static const char *osspcm_ioctls[] = { |
| "RESET", "SYNC", "SPEED", "STEREO", "GETBLKSIZE", "SETFMT", |
| "CHANNELS", "?", "POST", "SUBDIVIDE", "SETFRAGMENT", "GETFMTS", |
| "GETOSPACE", "GETISPACE", "NONBLOCK", "GETCAPS", "GET/SETTRIGGER", |
| "GETIPTR", "GETOPTR", "MAPINBUF", "MAPOUTBUF", "SETSYNCRO", |
| "SETDUPLEX", "GETODELAY" |
| }; |
| #define OSSPCM_IOCTLS ARRAY_SIZE(osspcm_ioctls) |
| |
| static void saa7134_oss_print_ioctl(char *name, unsigned int cmd) |
| { |
| char *dir; |
| |
| switch (_IOC_DIR(cmd)) { |
| case _IOC_NONE: dir = "--"; break; |
| case _IOC_READ: dir = "r-"; break; |
| case _IOC_WRITE: dir = "-w"; break; |
| case _IOC_READ | _IOC_WRITE: dir = "rw"; break; |
| default: dir = "??"; break; |
| } |
| switch (_IOC_TYPE(cmd)) { |
| case 'P': |
| printk(KERN_DEBUG "%s: ioctl 0x%08x (oss dsp, %s, SNDCTL_DSP_%s)\n", |
| name, cmd, dir, (_IOC_NR(cmd) < OSSPCM_IOCTLS) ? |
| osspcm_ioctls[_IOC_NR(cmd)] : "???"); |
| break; |
| case 'M': |
| printk(KERN_DEBUG "%s: ioctl 0x%08x (oss mixer, %s, #%d)\n", |
| name, cmd, dir, _IOC_NR(cmd)); |
| break; |
| default: |
| printk(KERN_DEBUG "%s: ioctl 0x%08x (???, %s, #%d)\n", |
| name, cmd, dir, _IOC_NR(cmd)); |
| } |
| } |
| |
| static int dsp_ioctl(struct inode *inode, struct file *file, |
| unsigned int cmd, unsigned long arg) |
| { |
| struct saa7134_dev *dev = file->private_data; |
| void __user *argp = (void __user *) arg; |
| int __user *p = argp; |
| int val = 0; |
| |
| if (debug > 1) |
| saa7134_oss_print_ioctl(dev->name,cmd); |
| switch (cmd) { |
| case OSS_GETVERSION: |
| return put_user(SOUND_VERSION, p); |
| case SNDCTL_DSP_GETCAPS: |
| return 0; |
| |
| case SNDCTL_DSP_SPEED: |
| if (get_user(val, p)) |
| return -EFAULT; |
| /* fall through */ |
| case SOUND_PCM_READ_RATE: |
| return put_user(dev->dmasound.rate, p); |
| |
| case SNDCTL_DSP_STEREO: |
| if (get_user(val, p)) |
| return -EFAULT; |
| mutex_lock(&dev->dmasound.lock); |
| dev->dmasound.channels = val ? 2 : 1; |
| if (dev->dmasound.recording_on) { |
| dsp_rec_stop(dev); |
| dsp_rec_start(dev); |
| } |
| mutex_unlock(&dev->dmasound.lock); |
| return put_user(dev->dmasound.channels-1, p); |
| |
| case SNDCTL_DSP_CHANNELS: |
| if (get_user(val, p)) |
| return -EFAULT; |
| if (val != 1 && val != 2) |
| return -EINVAL; |
| mutex_lock(&dev->dmasound.lock); |
| dev->dmasound.channels = val; |
| if (dev->dmasound.recording_on) { |
| dsp_rec_stop(dev); |
| dsp_rec_start(dev); |
| } |
| mutex_unlock(&dev->dmasound.lock); |
| /* fall through */ |
| case SOUND_PCM_READ_CHANNELS: |
| return put_user(dev->dmasound.channels, p); |
| |
| case SNDCTL_DSP_GETFMTS: /* Returns a mask */ |
| return put_user(AFMT_U8 | AFMT_S8 | |
| AFMT_U16_LE | AFMT_U16_BE | |
| AFMT_S16_LE | AFMT_S16_BE, p); |
| |
| case SNDCTL_DSP_SETFMT: /* Selects ONE fmt */ |
| if (get_user(val, p)) |
| return -EFAULT; |
| switch (val) { |
| case AFMT_QUERY: |
| /* nothing to do */ |
| break; |
| case AFMT_U8: |
| case AFMT_S8: |
| case AFMT_U16_LE: |
| case AFMT_U16_BE: |
| case AFMT_S16_LE: |
| case AFMT_S16_BE: |
| mutex_lock(&dev->dmasound.lock); |
| dev->dmasound.afmt = val; |
| if (dev->dmasound.recording_on) { |
| dsp_rec_stop(dev); |
| dsp_rec_start(dev); |
| } |
| mutex_unlock(&dev->dmasound.lock); |
| return put_user(dev->dmasound.afmt, p); |
| default: |
| return -EINVAL; |
| } |
| |
| case SOUND_PCM_READ_BITS: |
| switch (dev->dmasound.afmt) { |
| case AFMT_U8: |
| case AFMT_S8: |
| return put_user(8, p); |
| case AFMT_U16_LE: |
| case AFMT_U16_BE: |
| case AFMT_S16_LE: |
| case AFMT_S16_BE: |
| return put_user(16, p); |
| default: |
| return -EINVAL; |
| } |
| |
| case SNDCTL_DSP_NONBLOCK: |
| file->f_flags |= O_NONBLOCK; |
| return 0; |
| |
| case SNDCTL_DSP_RESET: |
| mutex_lock(&dev->dmasound.lock); |
| if (dev->dmasound.recording_on) |
| dsp_rec_stop(dev); |
| mutex_unlock(&dev->dmasound.lock); |
| return 0; |
| case SNDCTL_DSP_GETBLKSIZE: |
| return put_user(dev->dmasound.blksize, p); |
| |
| case SNDCTL_DSP_SETFRAGMENT: |
| if (get_user(val, p)) |
| return -EFAULT; |
| if (dev->dmasound.recording_on) |
| return -EBUSY; |
| dsp_buffer_free(dev); |
| /* used to be arg >> 16 instead of val >> 16; fixed */ |
| dsp_buffer_conf(dev,1 << (val & 0xffff), (val >> 16) & 0xffff); |
| dsp_buffer_init(dev); |
| return 0; |
| |
| case SNDCTL_DSP_SYNC: |
| /* NOP */ |
| return 0; |
| |
| case SNDCTL_DSP_GETISPACE: |
| { |
| audio_buf_info info; |
| info.fragsize = dev->dmasound.blksize; |
| info.fragstotal = dev->dmasound.blocks; |
| info.bytes = dev->dmasound.read_count; |
| info.fragments = info.bytes / info.fragsize; |
| if (copy_to_user(argp, &info, sizeof(info))) |
| return -EFAULT; |
| return 0; |
| } |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| static unsigned int dsp_poll(struct file *file, struct poll_table_struct *wait) |
| { |
| struct saa7134_dev *dev = file->private_data; |
| unsigned int mask = 0; |
| |
| poll_wait(file, &dev->dmasound.wq, wait); |
| |
| if (0 == dev->dmasound.read_count) { |
| mutex_lock(&dev->dmasound.lock); |
| if (!dev->dmasound.recording_on) |
| dsp_rec_start(dev); |
| mutex_unlock(&dev->dmasound.lock); |
| } else |
| mask |= (POLLIN | POLLRDNORM); |
| return mask; |
| } |
| |
| const struct file_operations saa7134_dsp_fops = { |
| .owner = THIS_MODULE, |
| .open = dsp_open, |
| .release = dsp_release, |
| .read = dsp_read, |
| .write = dsp_write, |
| .ioctl = dsp_ioctl, |
| .poll = dsp_poll, |
| .llseek = no_llseek, |
| }; |
| |
| /* ------------------------------------------------------------------ */ |
| |
| static int |
| mixer_recsrc_7134(struct saa7134_dev *dev) |
| { |
| int analog_io,rate; |
| |
| switch (dev->dmasound.input) { |
| case TV: |
| saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0xc0); |
| saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, 0x00); |
| break; |
| case LINE1: |
| case LINE2: |
| case LINE2_LEFT: |
| analog_io = (LINE1 == dev->dmasound.input) ? 0x00 : 0x08; |
| rate = (32000 == dev->dmasound.rate) ? 0x01 : 0x03; |
| saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x08, analog_io); |
| saa_andorb(SAA7134_AUDIO_FORMAT_CTRL, 0xc0, 0x80); |
| saa_andorb(SAA7134_SIF_SAMPLE_FREQ, 0x03, rate); |
| break; |
| } |
| return 0; |
| } |
| |
| static int |
| mixer_recsrc_7133(struct saa7134_dev *dev) |
| { |
| u32 anabar, xbarin; |
| |
| xbarin = 0x03; // adc |
| anabar = 0; |
| switch (dev->dmasound.input) { |
| case TV: |
| xbarin = 0; // Demodulator |
| anabar = 2; // DACs |
| break; |
| case LINE1: |
| anabar = 0; // aux1, aux1 |
| break; |
| case LINE2: |
| case LINE2_LEFT: |
| anabar = 9; // aux2, aux2 |
| break; |
| } |
| /* output xbar always main channel */ |
| saa_dsp_writel(dev, 0x46c >> 2, 0xbbbb10); |
| saa_dsp_writel(dev, 0x464 >> 2, xbarin); |
| saa_writel(0x594 >> 2, anabar); |
| |
| return 0; |
| } |
| |
| static int |
| mixer_recsrc(struct saa7134_dev *dev, enum saa7134_audio_in src) |
| { |
| static const char *iname[] = { "Oops", "TV", "LINE1", "LINE2" }; |
| |
| dev->dmasound.count++; |
| dev->dmasound.input = src; |
| dprintk("mixer input = %s\n",iname[dev->dmasound.input]); |
| |
| switch (dev->pci->device) { |
| case PCI_DEVICE_ID_PHILIPS_SAA7134: |
| mixer_recsrc_7134(dev); |
| break; |
| case PCI_DEVICE_ID_PHILIPS_SAA7133: |
| case PCI_DEVICE_ID_PHILIPS_SAA7135: |
| mixer_recsrc_7133(dev); |
| break; |
| } |
| return 0; |
| } |
| |
| static int |
| mixer_level(struct saa7134_dev *dev, enum saa7134_audio_in src, int level) |
| { |
| switch (dev->pci->device) { |
| case PCI_DEVICE_ID_PHILIPS_SAA7134: |
| switch (src) { |
| case TV: |
| /* nothing */ |
| break; |
| case LINE1: |
| saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x10, |
| (100 == level) ? 0x00 : 0x10); |
| break; |
| case LINE2: |
| case LINE2_LEFT: |
| saa_andorb(SAA7134_ANALOG_IO_SELECT, 0x20, |
| (100 == level) ? 0x00 : 0x20); |
| break; |
| } |
| break; |
| case PCI_DEVICE_ID_PHILIPS_SAA7133: |
| case PCI_DEVICE_ID_PHILIPS_SAA7135: |
| /* nothing */ |
| break; |
| } |
| return 0; |
| } |
| |
| /* ------------------------------------------------------------------ */ |
| |
| static int mixer_open(struct inode *inode, struct file *file) |
| { |
| int minor = iminor(inode); |
| struct saa7134_dev *dev; |
| |
| list_for_each_entry(dev, &saa7134_devlist, devlist) |
| if (dev->dmasound.minor_mixer == minor) { |
| file->private_data = dev; |
| return 0; |
| } |
| return -ENODEV; |
| } |
| |
| static int mixer_release(struct inode *inode, struct file *file) |
| { |
| file->private_data = NULL; |
| return 0; |
| } |
| |
| static int mixer_ioctl(struct inode *inode, struct file *file, |
| unsigned int cmd, unsigned long arg) |
| { |
| struct saa7134_dev *dev = file->private_data; |
| enum saa7134_audio_in input; |
| int val,ret; |
| void __user *argp = (void __user *) arg; |
| int __user *p = argp; |
| |
| if (debug > 1) |
| saa7134_oss_print_ioctl(dev->name,cmd); |
| switch (cmd) { |
| case OSS_GETVERSION: |
| return put_user(SOUND_VERSION, p); |
| case SOUND_MIXER_INFO: |
| { |
| mixer_info info; |
| memset(&info,0,sizeof(info)); |
| strlcpy(info.id, "TV audio", sizeof(info.id)); |
| strlcpy(info.name, dev->name, sizeof(info.name)); |
| info.modify_counter = dev->dmasound.count; |
| if (copy_to_user(argp, &info, sizeof(info))) |
| return -EFAULT; |
| return 0; |
| } |
| case SOUND_OLD_MIXER_INFO: |
| { |
| _old_mixer_info info; |
| memset(&info,0,sizeof(info)); |
| strlcpy(info.id, "TV audio", sizeof(info.id)); |
| strlcpy(info.name, dev->name, sizeof(info.name)); |
| if (copy_to_user(argp, &info, sizeof(info))) |
| return -EFAULT; |
| return 0; |
| } |
| case MIXER_READ(SOUND_MIXER_CAPS): |
| return put_user(SOUND_CAP_EXCL_INPUT, p); |
| case MIXER_READ(SOUND_MIXER_STEREODEVS): |
| return put_user(0, p); |
| case MIXER_READ(SOUND_MIXER_RECMASK): |
| case MIXER_READ(SOUND_MIXER_DEVMASK): |
| val = SOUND_MASK_LINE1 | SOUND_MASK_LINE2; |
| if (32000 == dev->dmasound.rate) |
| val |= SOUND_MASK_VIDEO; |
| return put_user(val, p); |
| |
| case MIXER_WRITE(SOUND_MIXER_RECSRC): |
| if (get_user(val, p)) |
| return -EFAULT; |
| input = dev->dmasound.input; |
| if (32000 == dev->dmasound.rate && |
| val & SOUND_MASK_VIDEO && dev->dmasound.input != TV) |
| input = TV; |
| if (val & SOUND_MASK_LINE1 && dev->dmasound.input != LINE1) |
| input = LINE1; |
| if (val & SOUND_MASK_LINE2 && dev->dmasound.input != LINE2) |
| input = LINE2; |
| if (input != dev->dmasound.input) |
| mixer_recsrc(dev,input); |
| /* fall throuth */ |
| case MIXER_READ(SOUND_MIXER_RECSRC): |
| switch (dev->dmasound.input) { |
| case TV: ret = SOUND_MASK_VIDEO; break; |
| case LINE1: ret = SOUND_MASK_LINE1; break; |
| case LINE2: ret = SOUND_MASK_LINE2; break; |
| default: ret = 0; |
| } |
| return put_user(ret, p); |
| |
| case MIXER_WRITE(SOUND_MIXER_VIDEO): |
| case MIXER_READ(SOUND_MIXER_VIDEO): |
| if (32000 != dev->dmasound.rate) |
| return -EINVAL; |
| return put_user(100 | 100 << 8, p); |
| |
| case MIXER_WRITE(SOUND_MIXER_LINE1): |
| if (get_user(val, p)) |
| return -EFAULT; |
| val &= 0xff; |
| val = (val <= 50) ? 50 : 100; |
| dev->dmasound.line1 = val; |
| mixer_level(dev,LINE1,dev->dmasound.line1); |
| /* fall throuth */ |
| case MIXER_READ(SOUND_MIXER_LINE1): |
| return put_user(dev->dmasound.line1 | dev->dmasound.line1 << 8, p); |
| |
| case MIXER_WRITE(SOUND_MIXER_LINE2): |
| if (get_user(val, p)) |
| return -EFAULT; |
| val &= 0xff; |
| val = (val <= 50) ? 50 : 100; |
| dev->dmasound.line2 = val; |
| mixer_level(dev,LINE2,dev->dmasound.line2); |
| /* fall throuth */ |
| case MIXER_READ(SOUND_MIXER_LINE2): |
| return put_user(dev->dmasound.line2 | dev->dmasound.line2 << 8, p); |
| |
| default: |
| return -EINVAL; |
| } |
| } |
| |
| const struct file_operations saa7134_mixer_fops = { |
| .owner = THIS_MODULE, |
| .open = mixer_open, |
| .release = mixer_release, |
| .ioctl = mixer_ioctl, |
| .llseek = no_llseek, |
| }; |
| |
| /* ------------------------------------------------------------------ */ |
| |
| static irqreturn_t saa7134_oss_irq(int irq, void *dev_id) |
| { |
| struct saa7134_dmasound *dmasound = dev_id; |
| struct saa7134_dev *dev = dmasound->priv_data; |
| unsigned long report, status; |
| int loop, handled = 0; |
| |
| for (loop = 0; loop < 10; loop++) { |
| report = saa_readl(SAA7134_IRQ_REPORT); |
| status = saa_readl(SAA7134_IRQ_STATUS); |
| |
| if (report & SAA7134_IRQ_REPORT_DONE_RA3) { |
| handled = 1; |
| saa_writel(SAA7134_IRQ_REPORT,report); |
| saa7134_irq_oss_done(dev, status); |
| } else { |
| goto out; |
| } |
| } |
| |
| if (loop == 10) { |
| dprintk("error! looping IRQ!"); |
| } |
| out: |
| return IRQ_RETVAL(handled); |
| } |
| |
| int saa7134_oss_init1(struct saa7134_dev *dev) |
| { |
| |
| if ((request_irq(dev->pci->irq, saa7134_oss_irq, |
| IRQF_SHARED | IRQF_DISABLED, dev->name, |
| (void*) &dev->dmasound)) < 0) |
| return -1; |
| |
| /* general */ |
| mutex_init(&dev->dmasound.lock); |
| init_waitqueue_head(&dev->dmasound.wq); |
| |
| switch (dev->pci->device) { |
| case PCI_DEVICE_ID_PHILIPS_SAA7133: |
| case PCI_DEVICE_ID_PHILIPS_SAA7135: |
| saa_writel(0x588 >> 2, 0x00000fff); |
| saa_writel(0x58c >> 2, 0x00543210); |
| saa_dsp_writel(dev, 0x46c >> 2, 0xbbbbbb); |
| break; |
| } |
| |
| /* dsp */ |
| dev->dmasound.rate = 32000; |
| if (rate) |
| dev->dmasound.rate = rate; |
| dev->dmasound.rate = (dev->dmasound.rate > 40000) ? 48000 : 32000; |
| |
| /* mixer */ |
| dev->dmasound.line1 = 50; |
| dev->dmasound.line2 = 50; |
| mixer_level(dev,LINE1,dev->dmasound.line1); |
| mixer_level(dev,LINE2,dev->dmasound.line2); |
| mixer_recsrc(dev, (dev->dmasound.rate == 32000) ? TV : LINE2); |
| |
| return 0; |
| } |
| |
| int saa7134_oss_fini(struct saa7134_dev *dev) |
| { |
| /* nothing */ |
| return 0; |
| } |
| |
| void saa7134_irq_oss_done(struct saa7134_dev *dev, unsigned long status) |
| { |
| int next_blk, reg = 0; |
| |
| spin_lock(&dev->slock); |
| if (UNSET == dev->dmasound.dma_blk) { |
| dprintk("irq: recording stopped\n"); |
| goto done; |
| } |
| if (0 != (status & 0x0f000000)) |
| dprintk("irq: lost %ld\n", (status >> 24) & 0x0f); |
| if (0 == (status & 0x10000000)) { |
| /* odd */ |
| if (0 == (dev->dmasound.dma_blk & 0x01)) |
| reg = SAA7134_RS_BA1(6); |
| } else { |
| /* even */ |
| if (1 == (dev->dmasound.dma_blk & 0x01)) |
| reg = SAA7134_RS_BA2(6); |
| } |
| if (0 == reg) { |
| dprintk("irq: field oops [%s]\n", |
| (status & 0x10000000) ? "even" : "odd"); |
| goto done; |
| } |
| if (dev->dmasound.read_count >= dev->dmasound.blksize * (dev->dmasound.blocks-2)) { |
| dprintk("irq: overrun [full=%d/%d]\n",dev->dmasound.read_count, |
| dev->dmasound.bufsize); |
| dsp_dma_stop(dev); |
| goto done; |
| } |
| |
| /* next block addr */ |
| next_blk = (dev->dmasound.dma_blk + 2) % dev->dmasound.blocks; |
| saa_writel(reg,next_blk * dev->dmasound.blksize); |
| if (debug > 2) |
| dprintk("irq: ok, %s, next_blk=%d, addr=%x\n", |
| (status & 0x10000000) ? "even" : "odd ", next_blk, |
| next_blk * dev->dmasound.blksize); |
| |
| /* update status & wake waiting readers */ |
| dev->dmasound.dma_blk = (dev->dmasound.dma_blk + 1) % dev->dmasound.blocks; |
| dev->dmasound.read_count += dev->dmasound.blksize; |
| wake_up(&dev->dmasound.wq); |
| |
| done: |
| spin_unlock(&dev->slock); |
| } |
| |
| static int saa7134_dsp_create(struct saa7134_dev *dev) |
| { |
| int err; |
| |
| err = dev->dmasound.minor_dsp = |
| register_sound_dsp(&saa7134_dsp_fops, |
| dsp_nr[dev->nr]); |
| if (err < 0) { |
| goto fail; |
| } |
| printk(KERN_INFO "%s: registered device dsp%d\n", |
| dev->name,dev->dmasound.minor_dsp >> 4); |
| |
| err = dev->dmasound.minor_mixer = |
| register_sound_mixer(&saa7134_mixer_fops, |
| mixer_nr[dev->nr]); |
| if (err < 0) |
| goto fail; |
| printk(KERN_INFO "%s: registered device mixer%d\n", |
| dev->name,dev->dmasound.minor_mixer >> 4); |
| |
| return 0; |
| |
| fail: |
| unregister_sound_dsp(dev->dmasound.minor_dsp); |
| return 0; |
| |
| |
| } |
| |
| static int oss_device_init(struct saa7134_dev *dev) |
| { |
| dev->dmasound.priv_data = dev; |
| saa7134_oss_init1(dev); |
| saa7134_dsp_create(dev); |
| return 1; |
| } |
| |
| static int oss_device_exit(struct saa7134_dev *dev) |
| { |
| |
| unregister_sound_mixer(dev->dmasound.minor_mixer); |
| unregister_sound_dsp(dev->dmasound.minor_dsp); |
| |
| saa7134_oss_fini(dev); |
| |
| if (dev->pci->irq > 0) { |
| synchronize_irq(dev->pci->irq); |
| free_irq(dev->pci->irq,&dev->dmasound); |
| } |
| |
| dev->dmasound.priv_data = NULL; |
| return 1; |
| } |
| |
| static int saa7134_oss_init(void) |
| { |
| struct saa7134_dev *dev = NULL; |
| struct list_head *list; |
| |
| if (!saa7134_dmasound_init && !saa7134_dmasound_exit) { |
| saa7134_dmasound_init = oss_device_init; |
| saa7134_dmasound_exit = oss_device_exit; |
| } else { |
| printk(KERN_WARNING "saa7134 OSS: can't load, DMA sound handler already assigned (probably to ALSA)\n"); |
| return -EBUSY; |
| } |
| |
| printk(KERN_INFO "saa7134 OSS driver for DMA sound loaded\n"); |
| |
| |
| list_for_each(list,&saa7134_devlist) { |
| dev = list_entry(list, struct saa7134_dev, devlist); |
| if (dev->dmasound.priv_data == NULL) { |
| oss_device_init(dev); |
| } else { |
| printk(KERN_ERR "saa7134 OSS: DMA sound is being handled by ALSA, ignoring %s\n",dev->name); |
| return -EBUSY; |
| } |
| } |
| |
| if (dev == NULL) |
| printk(KERN_INFO "saa7134 OSS: no saa7134 cards found\n"); |
| |
| return 0; |
| |
| } |
| |
| static void saa7134_oss_exit(void) |
| { |
| struct saa7134_dev *dev; |
| |
| list_for_each_entry(dev, &saa7134_devlist, devlist) { |
| /* Device isn't registered by OSS, probably ALSA's */ |
| if (!dev->dmasound.minor_dsp) |
| continue; |
| |
| oss_device_exit(dev); |
| } |
| |
| saa7134_dmasound_init = NULL; |
| saa7134_dmasound_exit = NULL; |
| |
| printk(KERN_INFO "saa7134 OSS driver for DMA sound unloaded\n"); |
| |
| return; |
| } |
| |
| /* We initialize this late, to make sure the sound system is up and running */ |
| late_initcall(saa7134_oss_init); |
| module_exit(saa7134_oss_exit); |
| MODULE_LICENSE("GPL"); |
| MODULE_AUTHOR("Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]"); |
| |
| /* ----------------------------------------------------------- */ |
| /* |
| * Local variables: |
| * c-basic-offset: 8 |
| * End: |
| */ |