diff options
Diffstat (limited to 'drivers/media/video/saa7134/saa7134-oss.c')
| -rw-r--r-- | drivers/media/video/saa7134/saa7134-oss.c | 1046 |
1 files changed, 0 insertions, 1046 deletions
diff --git a/drivers/media/video/saa7134/saa7134-oss.c b/drivers/media/video/saa7134/saa7134-oss.c deleted file mode 100644 index aedf04653e0e..000000000000 --- a/drivers/media/video/saa7134/saa7134-oss.c +++ /dev/null @@ -1,1046 +0,0 @@ -/* - * - * 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: - */ |