From b54134be53be720da423692665ec215eb14a678b Mon Sep 17 00:00:00 2001 From: Ricardo Cerqueira Date: Tue, 8 Nov 2005 21:38:54 -0800 Subject: [PATCH] V4L: 926: Saa7134 alsa can only be autoloaded after saa7134 is active - Saa7134-alsa can only be autoloaded after saa7134 is active - Applied pertinent changes proposed by the ALSA team - dsp_nr replaced by ALSA's index[] Signed-off-by: Ricardo Cerqueira Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/video/saa7134/saa7134-alsa.c | 239 ++++++++++++++--------------- 1 file changed, 114 insertions(+), 125 deletions(-) (limited to 'drivers/media/video/saa7134/saa7134-alsa.c') diff --git a/drivers/media/video/saa7134/saa7134-alsa.c b/drivers/media/video/saa7134/saa7134-alsa.c index 7972939cb46c..4f3c42354329 100644 --- a/drivers/media/video/saa7134/saa7134-alsa.c +++ b/drivers/media/video/saa7134/saa7134-alsa.c @@ -30,7 +30,6 @@ #include #include #include -#include #include #include "saa7134.h" @@ -40,29 +39,11 @@ static unsigned int debug = 0; module_param(debug, int, 0644); MODULE_PARM_DESC(debug,"enable debug messages [alsa]"); -unsigned int dsp_nr = 0; -module_param(dsp_nr, int, 0444); -MODULE_PARM_DESC(dsp_nr, "alsa device number"); - /* * Configuration macros */ /* defaults */ -#define MAX_BUFFER_SIZE (256*1024) -#define USE_FORMATS SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE -#define USE_RATE SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000 -#define USE_RATE_MIN 32000 -#define USE_RATE_MAX 48000 -#define USE_CHANNELS_MIN 1 -#define USE_CHANNELS_MAX 2 -#ifndef USE_PERIODS_MIN -#define USE_PERIODS_MIN 2 -#endif -#ifndef USE_PERIODS_MAX -#define USE_PERIODS_MAX 1024 -#endif - #define MIXER_ADDR_TVTUNER 0 #define MIXER_ADDR_LINE1 1 #define MIXER_ADDR_LINE2 2 @@ -72,6 +53,9 @@ static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 0}; +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for SAA7134 capture interface(s)."); + #define dprintk(fmt, arg...) if (debug) \ printk(KERN_DEBUG "%s/alsa: " fmt, dev->name , ## arg) @@ -108,7 +92,7 @@ typedef struct snd_card_saa7134_pcm { snd_pcm_substream_t *substream; } snd_card_saa7134_pcm_t; -static snd_card_t *snd_saa7134_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; +static snd_card_t *snd_saa7134_cards[SNDRV_CARDS]; /* @@ -124,8 +108,8 @@ static snd_card_t *snd_saa7134_cards[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; static void saa7134_dma_stop(struct saa7134_dev *dev) { - dev->oss.dma_blk = -1; - dev->oss.dma_running = 0; + dev->dmasound.dma_blk = -1; + dev->dmasound.dma_running = 0; saa7134_set_dmabits(dev); } @@ -141,8 +125,8 @@ static void saa7134_dma_stop(struct saa7134_dev *dev) static void saa7134_dma_start(struct saa7134_dev *dev) { - dev->oss.dma_blk = 0; - dev->oss.dma_running = 1; + dev->dmasound.dma_blk = 0; + dev->dmasound.dma_running = 1; saa7134_set_dmabits(dev); } @@ -162,7 +146,7 @@ void saa7134_irq_alsa_done(struct saa7134_dev *dev, unsigned long status) int next_blk, reg = 0; spin_lock(&dev->slock); - if (UNSET == dev->oss.dma_blk) { + if (UNSET == dev->dmasound.dma_blk) { dprintk("irq: recording stopped\n"); goto done; } @@ -170,11 +154,11 @@ void saa7134_irq_alsa_done(struct saa7134_dev *dev, unsigned long status) dprintk("irq: lost %ld\n", (status >> 24) & 0x0f); if (0 == (status & 0x10000000)) { /* odd */ - if (0 == (dev->oss.dma_blk & 0x01)) + if (0 == (dev->dmasound.dma_blk & 0x01)) reg = SAA7134_RS_BA1(6); } else { /* even */ - if (1 == (dev->oss.dma_blk & 0x01)) + if (1 == (dev->dmasound.dma_blk & 0x01)) reg = SAA7134_RS_BA2(6); } if (0 == reg) { @@ -183,30 +167,31 @@ void saa7134_irq_alsa_done(struct saa7134_dev *dev, unsigned long status) goto done; } - if (dev->oss.read_count >= dev->oss.blksize * (dev->oss.blocks-2)) { - dprintk("irq: overrun [full=%d/%d] - Blocks in %d\n",dev->oss.read_count, - dev->oss.bufsize, dev->oss.blocks); + if (dev->dmasound.read_count >= dev->dmasound.blksize * (dev->dmasound.blocks-2)) { + dprintk("irq: overrun [full=%d/%d] - Blocks in %d\n",dev->dmasound.read_count, + dev->dmasound.bufsize, dev->dmasound.blocks); + snd_pcm_stop(dev->dmasound.substream,SNDRV_PCM_STATE_XRUN); saa7134_dma_stop(dev); goto done; } /* next block addr */ - next_blk = (dev->oss.dma_blk + 2) % dev->oss.blocks; - saa_writel(reg,next_blk * dev->oss.blksize); + 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, blocks=%u, size=%u, read=%u\n", (status & 0x10000000) ? "even" : "odd ", next_blk, - next_blk * dev->oss.blksize, dev->oss.blocks, dev->oss.blksize, dev->oss.read_count); + next_blk * dev->dmasound.blksize, dev->dmasound.blocks, dev->dmasound.blksize, dev->dmasound.read_count); /* update status & wake waiting readers */ - dev->oss.dma_blk = (dev->oss.dma_blk + 1) % dev->oss.blocks; - dev->oss.read_count += dev->oss.blksize; + dev->dmasound.dma_blk = (dev->dmasound.dma_blk + 1) % dev->dmasound.blocks; + dev->dmasound.read_count += dev->dmasound.blksize; - dev->oss.recording_on = reg; + dev->dmasound.recording_on = reg; - if (dev->oss.read_count >= snd_pcm_lib_period_bytes(dev->oss.substream)) { + if (dev->dmasound.read_count >= snd_pcm_lib_period_bytes(dev->dmasound.substream)) { spin_unlock(&dev->slock); - snd_pcm_period_elapsed(dev->oss.substream); + snd_pcm_period_elapsed(dev->dmasound.substream); spin_lock(&dev->slock); } done: @@ -262,7 +247,24 @@ out: static int snd_card_saa7134_capture_trigger(snd_pcm_substream_t * substream, int cmd) { - return 0; + snd_pcm_runtime_t *runtime = substream->runtime; + snd_card_saa7134_pcm_t *saapcm = runtime->private_data; + struct saa7134_dev *dev=saapcm->saadev; + int err = 0; + + spin_lock_irq(&dev->slock); + if (cmd == SNDRV_PCM_TRIGGER_START) { + /* start dma */ + saa7134_dma_start(dev); + } else if (cmd == SNDRV_PCM_TRIGGER_STOP) { + /* stop dma */ + saa7134_dma_stop(dev); + } else { + err = -EINVAL; + } + spin_unlock_irq(&dev->slock); + + return err; } /* @@ -289,9 +291,9 @@ static int dsp_buffer_conf(struct saa7134_dev *dev, int blksize, int blocks) if ((blksize * blocks) > 1024*1024) blocks = 1024*1024 / blksize; - dev->oss.blocks = blocks; - dev->oss.blksize = blksize; - dev->oss.bufsize = blksize * blocks; + 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); @@ -313,11 +315,11 @@ static int dsp_buffer_init(struct saa7134_dev *dev) { int err; - if (!dev->oss.bufsize) + if (!dev->dmasound.bufsize) BUG(); - videobuf_dma_init(&dev->oss.dma); - err = videobuf_dma_init_kernel(&dev->oss.dma, PCI_DMA_FROMDEVICE, - (dev->oss.bufsize + PAGE_SIZE) >> PAGE_SHIFT); + 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; @@ -340,7 +342,6 @@ static int snd_card_saa7134_capture_prepare(snd_pcm_substream_t * substream) snd_pcm_runtime_t *runtime = substream->runtime; int err, bswap, sign; u32 fmt, control; - unsigned long flags; snd_card_saa7134_t *saa7134 = snd_pcm_substream_chip(substream); struct saa7134_dev *dev; snd_card_saa7134_pcm_t *saapcm = runtime->private_data; @@ -351,7 +352,7 @@ static int snd_card_saa7134_capture_prepare(snd_pcm_substream_t * substream) size = snd_pcm_lib_buffer_bytes(substream); count = snd_pcm_lib_period_bytes(substream); - saapcm->saadev->oss.substream = substream; + saapcm->saadev->dmasound.substream = substream; bps = runtime->rate * runtime->channels; bps *= snd_pcm_format_width(runtime->format); bps /= 8; @@ -371,13 +372,13 @@ static int snd_card_saa7134_capture_prepare(snd_pcm_substream_t * substream) goto fail2; /* prepare buffer */ - if (0 != (err = videobuf_dma_pci_map(dev->pci,&dev->oss.dma))) + if (0 != (err = videobuf_dma_pci_map(dev->pci,&dev->dmasound.dma))) return err; - if (0 != (err = saa7134_pgtable_alloc(dev->pci,&dev->oss.pt))) + if (0 != (err = saa7134_pgtable_alloc(dev->pci,&dev->dmasound.pt))) goto fail1; - if (0 != (err = saa7134_pgtable_build(dev->pci,&dev->oss.pt, - dev->oss.dma.sglist, - dev->oss.dma.sglen, + if (0 != (err = saa7134_pgtable_build(dev->pci,&dev->dmasound.pt, + dev->dmasound.dma.sglist, + dev->dmasound.dma.sglen, 0))) goto fail2; @@ -427,10 +428,10 @@ static int snd_card_saa7134_capture_prepare(snd_pcm_substream_t * substream) if (sign) fmt |= 0x04; - fmt |= (MIXER_ADDR_TVTUNER == dev->oss.input) ? 0xc0 : 0x80; - saa_writeb(SAA7134_NUM_SAMPLES0, ((dev->oss.blksize - 1) & 0x0000ff)); - saa_writeb(SAA7134_NUM_SAMPLES1, ((dev->oss.blksize - 1) & 0x00ff00) >> 8); - saa_writeb(SAA7134_NUM_SAMPLES2, ((dev->oss.blksize - 1) & 0xff0000) >> 16); + fmt |= (MIXER_ADDR_TVTUNER == 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; @@ -442,7 +443,7 @@ static int snd_card_saa7134_capture_prepare(snd_pcm_substream_t * substream) fmt |= (2 << 4); if (!sign) fmt |= 0x04; - saa_writel(SAA7133_NUM_SAMPLES, dev->oss.blksize -1); + saa_writel(SAA7133_NUM_SAMPLES, dev->dmasound.blksize -1); saa_writel(SAA7133_AUDIO_CHANNEL, 0x543210 | (fmt << 24)); //saa_writel(SAA7133_AUDIO_CHANNEL, 0x543210); break; @@ -454,7 +455,7 @@ static int snd_card_saa7134_capture_prepare(snd_pcm_substream_t * substream) /* dma: setup channel 6 (= AUDIO) */ control = SAA7134_RS_CONTROL_BURST_16 | SAA7134_RS_CONTROL_ME | - (dev->oss.pt.dma >> 12); + (dev->dmasound.pt.dma >> 12); if (bswap) control |= SAA7134_RS_CONTROL_BSWAP; @@ -462,24 +463,20 @@ static int snd_card_saa7134_capture_prepare(snd_pcm_substream_t * substream) byte, but it doesn't work. So I allocate the DMA using the V4L functions, and force ALSA to use that as the DMA area */ - runtime->dma_area = dev->oss.dma.vmalloc; + runtime->dma_area = dev->dmasound.dma.vmalloc; saa_writel(SAA7134_RS_BA1(6),0); - saa_writel(SAA7134_RS_BA2(6),dev->oss.blksize); + saa_writel(SAA7134_RS_BA2(6),dev->dmasound.blksize); saa_writel(SAA7134_RS_PITCH(6),0); saa_writel(SAA7134_RS_CONTROL(6),control); - dev->oss.rate = runtime->rate; - /* start dma */ - spin_lock_irqsave(&dev->slock,flags); - saa7134_dma_start(dev); - spin_unlock_irqrestore(&dev->slock,flags); + dev->dmasound.rate = runtime->rate; return 0; fail2: - saa7134_pgtable_free(dev->pci,&dev->oss.pt); + saa7134_pgtable_free(dev->pci,&dev->dmasound.pt); fail1: - videobuf_dma_pci_unmap(dev->pci,&dev->oss.dma); + videobuf_dma_pci_unmap(dev->pci,&dev->dmasound.dma); return err; @@ -504,14 +501,14 @@ static snd_pcm_uframes_t snd_card_saa7134_capture_pointer(snd_pcm_substream_t * - if (dev->oss.read_count) { - dev->oss.read_count -= snd_pcm_lib_period_bytes(substream); - dev->oss.read_offset += snd_pcm_lib_period_bytes(substream); - if (dev->oss.read_offset == dev->oss.bufsize) - dev->oss.read_offset = 0; + if (dev->dmasound.read_count) { + dev->dmasound.read_count -= snd_pcm_lib_period_bytes(substream); + dev->dmasound.read_offset += snd_pcm_lib_period_bytes(substream); + if (dev->dmasound.read_offset == dev->dmasound.bufsize) + dev->dmasound.read_offset = 0; } - return bytes_to_frames(runtime, dev->oss.read_offset); + return bytes_to_frames(runtime, dev->dmasound.read_offset); } /* @@ -523,18 +520,22 @@ static snd_pcm_hardware_t snd_card_saa7134_capture = .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID), - .formats = USE_FORMATS, - .rates = USE_RATE, - .rate_min = USE_RATE_MIN, - .rate_max = USE_RATE_MAX, - .channels_min = USE_CHANNELS_MIN, - .channels_max = USE_CHANNELS_MAX, - .buffer_bytes_max = MAX_BUFFER_SIZE, + .formats = SNDRV_PCM_FMTBIT_S16_LE | \ + SNDRV_PCM_FMTBIT_S16_BE | \ + SNDRV_PCM_FMTBIT_S8 | \ + SNDRV_PCM_FMTBIT_U8 | \ + SNDRV_PCM_FMTBIT_U16_LE | \ + SNDRV_PCM_FMTBIT_U16_BE, + .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000, + .rate_min = 32000, + .rate_max = 48000, + .channels_min = 1, + .channels_max = 2, + .buffer_bytes_max = (256*1024), .period_bytes_min = 64, - .period_bytes_max = MAX_BUFFER_SIZE, - .periods_min = USE_PERIODS_MIN, - .periods_max = USE_PERIODS_MAX, - .fifo_size = 0x08070503, + .period_bytes_max = (256*1024), + .periods_min = 2, + .periods_max = 1024, }; static void snd_card_saa7134_runtime_free(snd_pcm_runtime_t *runtime) @@ -590,14 +591,14 @@ static int snd_card_saa7134_hw_free(snd_pcm_substream_t * substream) static int dsp_buffer_free(struct saa7134_dev *dev) { - if (!dev->oss.blksize) + if (!dev->dmasound.blksize) BUG(); - videobuf_dma_free(&dev->oss.dma); + videobuf_dma_free(&dev->dmasound.dma); - dev->oss.blocks = 0; - dev->oss.blksize = 0; - dev->oss.bufsize = 0; + dev->dmasound.blocks = 0; + dev->dmasound.blksize = 0; + dev->dmasound.bufsize = 0; return 0; } @@ -616,16 +617,10 @@ static int snd_card_saa7134_capture_close(snd_pcm_substream_t * substream) { snd_card_saa7134_t *chip = snd_pcm_substream_chip(substream); struct saa7134_dev *dev = chip->saadev; - unsigned long flags; - - /* stop dma */ - spin_lock_irqsave(&dev->slock,flags); - saa7134_dma_stop(dev); - spin_unlock_irqrestore(&dev->slock,flags); /* unlock buffer */ - saa7134_pgtable_free(dev->pci,&dev->oss.pt); - videobuf_dma_pci_unmap(dev->pci,&dev->oss.dma); + saa7134_pgtable_free(dev->pci,&dev->dmasound.pt); + videobuf_dma_pci_unmap(dev->pci,&dev->dmasound.dma); dsp_buffer_free(dev); return 0; @@ -649,16 +644,16 @@ static int snd_card_saa7134_capture_open(snd_pcm_substream_t * substream) struct saa7134_dev *dev = saa7134->saadev; int err; - down(&dev->oss.lock); + down(&dev->dmasound.lock); - dev->oss.afmt = SNDRV_PCM_FORMAT_U8; - dev->oss.channels = 2; - dev->oss.read_count = 0; - dev->oss.read_offset = 0; + dev->dmasound.afmt = SNDRV_PCM_FORMAT_U8; + dev->dmasound.channels = 2; + dev->dmasound.read_count = 0; + dev->dmasound.read_offset = 0; - up(&dev->oss.lock); + up(&dev->dmasound.lock); - saapcm = kcalloc(1, sizeof(*saapcm), GFP_KERNEL); + saapcm = kzalloc(sizeof(*saapcm), GFP_KERNEL); if (saapcm == NULL) return -ENOMEM; saapcm->saadev=saa7134->saadev; @@ -731,13 +726,10 @@ static int snd_saa7134_volume_info(snd_kcontrol_t * kcontrol, snd_ctl_elem_info_ static int snd_saa7134_volume_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) { snd_card_saa7134_t *chip = snd_kcontrol_chip(kcontrol); - unsigned long flags; int addr = kcontrol->private_value; - spin_lock_irqsave(&chip->mixer_lock, flags); ucontrol->value.integer.value[0] = chip->mixer_volume[addr][0]; ucontrol->value.integer.value[1] = chip->mixer_volume[addr][1]; - spin_unlock_irqrestore(&chip->mixer_lock, flags); return 0; } @@ -815,7 +807,7 @@ static int snd_saa7134_capsrc_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_ chip->capture_source[addr][1] != right; chip->capture_source[addr][0] = left; chip->capture_source[addr][1] = right; - dev->oss.input=addr; + dev->dmasound.input=addr; spin_unlock_irqrestore(&chip->mixer_lock, flags); @@ -831,7 +823,7 @@ static int snd_saa7134_capsrc_put(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_ case MIXER_ADDR_LINE1: case MIXER_ADDR_LINE2: analog_io = (MIXER_ADDR_LINE1 == addr) ? 0x00 : 0x08; - rate = (32000 == dev->oss.rate) ? 0x01 : 0x03; + 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); @@ -925,7 +917,7 @@ static int snd_saa7134_dev_free(snd_device_t *device) * */ -int alsa_card_saa7134_create (struct saa7134_dev *saadev, unsigned int devicenum) +int alsa_card_saa7134_create (struct saa7134_dev *saadev) { static int dev; @@ -942,12 +934,8 @@ int alsa_card_saa7134_create (struct saa7134_dev *saadev, unsigned int devicenum if (!enable[dev]) return -ENODEV; - if (devicenum) { - card = snd_card_new(devicenum, id[dev], THIS_MODULE, 0); - dsp_nr++; - } else { - card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); - } + card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); + if (card == NULL) return -ENOMEM; @@ -961,6 +949,7 @@ int alsa_card_saa7134_create (struct saa7134_dev *saadev, unsigned int devicenum } spin_lock_init(&chip->lock); + spin_lock_init(&chip->mixer_lock); chip->saadev = saadev; @@ -970,18 +959,17 @@ int alsa_card_saa7134_create (struct saa7134_dev *saadev, unsigned int devicenum chip->irq = saadev->pci->irq; chip->iobase = pci_resource_start(saadev->pci, 0); - err = request_irq(chip->pci->irq, saa7134_alsa_irq, + err = request_irq(saadev->pci->irq, saa7134_alsa_irq, SA_SHIRQ | SA_INTERRUPT, saadev->name, saadev); if (err < 0) { printk(KERN_ERR "%s: can't get IRQ %d for ALSA\n", saadev->name, saadev->pci->irq); - return err; + goto __nodev; } if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { - snd_saa7134_free(chip); - return err; + goto __nodev; } if ((err = snd_card_saa7134_new_mixer(chip)) < 0) @@ -990,8 +978,6 @@ int alsa_card_saa7134_create (struct saa7134_dev *saadev, unsigned int devicenum if ((err = snd_card_saa7134_pcm(chip, 0)) < 0) goto __nodev; - spin_lock_init(&chip->mixer_lock); - snd_card_set_dev(card, &chip->pci->dev); /* End of "creation" */ @@ -1007,7 +993,7 @@ int alsa_card_saa7134_create (struct saa7134_dev *saadev, unsigned int devicenum __nodev: snd_card_free(card); - kfree(card); + kfree(chip); return err; } @@ -1028,7 +1014,7 @@ static int saa7134_alsa_init(void) list_for_each(list,&saa7134_devlist) { saadev = list_entry(list, struct saa7134_dev, devlist); - alsa_card_saa7134_create(saadev,dsp_nr); + alsa_card_saa7134_create(saadev); } if (saadev == NULL) @@ -1045,10 +1031,13 @@ static int saa7134_alsa_init(void) void saa7134_alsa_exit(void) { int idx; + for (idx = 0; idx < SNDRV_CARDS; idx++) { snd_card_free(snd_saa7134_cards[idx]); } + printk(KERN_INFO "saa7134 ALSA driver for DMA sound unloaded\n"); + return; } -- cgit v1.2.2