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authorRicardo Cerqueira <v4l@cerqueira.org>2005-11-09 08:38:54 +0300
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-09 18:56:32 +0300
commitb54134be53be720da423692665ec215eb14a678b (patch)
treecf9c5a895a6c657ef23317c6256e7eb284e93b95 /drivers/media/video/saa7134/saa7134-alsa.c
parent79dd0c69f05fccb0396bdcd861ad4686ce888cda (diff)
downloadlinux-b54134be53be720da423692665ec215eb14a678b.tar.xz
[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 <v4l@cerqueira.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/media/video/saa7134/saa7134-alsa.c')
-rw-r--r--drivers/media/video/saa7134/saa7134-alsa.c239
1 files changed, 114 insertions, 125 deletions
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 <sound/core.h>
#include <sound/control.h>
#include <sound/pcm.h>
-#include <sound/rawmidi.h>
#include <sound/initval.h>
#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;
}