+++ /dev/null
-/*
- *
- * 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:
- */
projects / GitHub / LineageOS / android_kernel_samsung_universal7580.git / commitdiff