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authorRicardo Cerqueira <devnull@localhost>2005-11-07 20:22:20 +0000
committerRicardo Cerqueira <devnull@localhost>2005-11-07 20:22:20 +0000
commitbe3a0bcb5e7157b662e7123c64b28a50d9f53b56 (patch)
treec64fa5ef4a0817587a679b9b034e776ed9ed4edb /linux/drivers/media/video/saa7134/saa7134-alsa.c
parentb883927fb0ec0c04fc94a1e4907b2d36688d9fdc (diff)
downloadmediapointer-dvb-s2-be3a0bcb5e7157b662e7123c64b28a50d9f53b56.tar.gz
mediapointer-dvb-s2-be3a0bcb5e7157b662e7123c64b28a50d9f53b56.tar.bz2
- DMA sound struct has been renamed from "oss" to "dmasound" to better
reflect the fact that it is common to both OSS and ALSA Signed-off-by: Ricardo Cerqueira <v4l@cerqueira.org>
Diffstat (limited to 'linux/drivers/media/video/saa7134/saa7134-alsa.c')
-rw-r--r--linux/drivers/media/video/saa7134/saa7134-alsa.c130
1 files changed, 65 insertions, 65 deletions
diff --git a/linux/drivers/media/video/saa7134/saa7134-alsa.c b/linux/drivers/media/video/saa7134/saa7134-alsa.c
index 51bb1e259..a65ac4be1 100644
--- a/linux/drivers/media/video/saa7134/saa7134-alsa.c
+++ b/linux/drivers/media/video/saa7134/saa7134-alsa.c
@@ -1,7 +1,7 @@
/*
* SAA713x ALSA support for V4L
*
- * $Id: saa7134-alsa.c,v 1.13 2005/11/07 20:16:51 rmcc Exp $
+ * $Id: saa7134-alsa.c,v 1.14 2005/11/07 20:22:20 rmcc Exp $
*
* Caveats:
* - Volume doesn't work (it's always at max)
@@ -118,8 +118,8 @@ static snd_card_t *snd_saa7134_cards[SNDRV_CARDS];
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);
}
@@ -135,8 +135,8 @@ 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);
}
@@ -156,7 +156,7 @@ 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;
}
@@ -164,11 +164,11 @@ 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) {
@@ -177,31 +177,31 @@ 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);
- snd_pcm_stop(dev->oss.substream,SNDRV_PCM_STATE_XRUN);
+ 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:
@@ -301,9 +301,9 @@ 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);
@@ -325,11 +325,11 @@ 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;
@@ -362,7 +362,7 @@ 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;
@@ -382,13 +382,13 @@ 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;
@@ -438,10 +438,10 @@ 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;
@@ -453,7 +453,7 @@ 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;
@@ -465,7 +465,7 @@ 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;
@@ -473,20 +473,20 @@ 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;
+ 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;
@@ -511,14 +511,14 @@ 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);
}
/*
@@ -601,14 +601,14 @@ 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;
}
@@ -629,8 +629,8 @@ static int snd_card_saa7134_capture_close(snd_pcm_substream_t * substream)
struct saa7134_dev *dev = chip->saadev;
/* 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;
@@ -654,14 +654,14 @@ 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 = kzalloc(sizeof(*saapcm), GFP_KERNEL);
if (saapcm == NULL)
@@ -817,7 +817,7 @@ 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);
@@ -833,7 +833,7 @@ 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);