summaryrefslogtreecommitdiffstats
path: root/drivers/media/pci/cx88/cx88-alsa.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/pci/cx88/cx88-alsa.c')
-rw-r--r--drivers/media/pci/cx88/cx88-alsa.c79
1 files changed, 39 insertions, 40 deletions
diff --git a/drivers/media/pci/cx88/cx88-alsa.c b/drivers/media/pci/cx88/cx88-alsa.c
index d2f1880a157e..56770e84b3d5 100644
--- a/drivers/media/pci/cx88/cx88-alsa.c
+++ b/drivers/media/pci/cx88/cx88-alsa.c
@@ -1,5 +1,4 @@
/*
- *
* Support for audio capture
* PCI function #1 of the cx2388x.
*
@@ -18,10 +17,6 @@
* 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 "cx88.h"
@@ -118,8 +113,8 @@ MODULE_VERSION(CX88_VERSION);
MODULE_SUPPORTED_DEVICE("{{Conexant,23881},{{Conexant,23882},{{Conexant,23883}");
static unsigned int debug;
-module_param(debug,int,0644);
-MODULE_PARM_DESC(debug,"enable debug messages");
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable debug messages");
/****************************************************************************
Module specific funtions
@@ -132,7 +127,7 @@ MODULE_PARM_DESC(debug,"enable debug messages");
static int _cx88_start_audio_dma(snd_cx88_card_t *chip)
{
struct cx88_audio_buffer *buf = chip->buf;
- struct cx88_core *core=chip->core;
+ struct cx88_core *core = chip->core;
const struct sram_channel *audio_ch = &cx88_sram_channels[SRAM_CH25];
/* Make sure RISC/FIFO are off before changing FIFO/RISC settings */
@@ -177,7 +172,8 @@ static int _cx88_start_audio_dma(snd_cx88_card_t *chip)
*/
static int _cx88_stop_audio_dma(snd_cx88_card_t *chip)
{
- struct cx88_core *core=chip->core;
+ struct cx88_core *core = chip->core;
+
dprintk(1, "Stopping audio DMA\n");
/* stop dma */
@@ -261,7 +257,7 @@ static irqreturn_t cx8801_irq(int irq, void *dev_id)
for (loop = 0; loop < MAX_IRQ_LOOP; loop++) {
status = cx_read(MO_PCI_INTSTAT) &
(core->pci_irqmask | PCI_INT_AUDINT);
- if (0 == status)
+ if (status == 0)
goto out;
dprintk(3, "cx8801_irq loop %d/%d, status %x\n",
loop, MAX_IRQ_LOOP, status);
@@ -274,7 +270,7 @@ static irqreturn_t cx8801_irq(int irq, void *dev_id)
cx8801_aud_irq(chip);
}
- if (MAX_IRQ_LOOP == loop) {
+ if (loop == MAX_IRQ_LOOP) {
pr_err("IRQ loop detected, disabling interrupts\n");
cx_clear(MO_PCI_INTMSK, PCI_INT_AUDINT);
}
@@ -290,7 +286,7 @@ static int cx88_alsa_dma_init(struct cx88_audio_dev *chip, int nr_pages)
int i;
buf->vaddr = vmalloc_32(nr_pages << PAGE_SHIFT);
- if (NULL == buf->vaddr) {
+ if (buf->vaddr == NULL) {
dprintk(1, "vmalloc_32(%d pages) failed\n", nr_pages);
return -ENOMEM;
}
@@ -303,13 +299,13 @@ static int cx88_alsa_dma_init(struct cx88_audio_dev *chip, int nr_pages)
buf->nr_pages = nr_pages;
buf->sglist = vzalloc(buf->nr_pages * sizeof(*buf->sglist));
- if (NULL == buf->sglist)
+ if (buf->sglist == NULL)
goto vzalloc_err;
sg_init_table(buf->sglist, buf->nr_pages);
for (i = 0; i < buf->nr_pages; i++) {
pg = vmalloc_to_page(buf->vaddr + i * PAGE_SIZE);
- if (NULL == pg)
+ if (pg == NULL)
goto vmalloc_to_page_err;
sg_set_page(&buf->sglist[i], pg, PAGE_SIZE, 0);
}
@@ -331,7 +327,7 @@ static int cx88_alsa_dma_map(struct cx88_audio_dev *dev)
buf->sglen = dma_map_sg(&dev->pci->dev, buf->sglist,
buf->nr_pages, PCI_DMA_FROMDEVICE);
- if (0 == buf->sglen) {
+ if (buf->sglen == 0) {
pr_warn("%s: cx88_alsa_map_sg failed\n", __func__);
return -ENOMEM;
}
@@ -366,7 +362,7 @@ static int dsp_buffer_free(snd_cx88_card_t *chip)
BUG_ON(!chip->dma_size);
- dprintk(2,"Freeing buffer\n");
+ dprintk(2, "Freeing buffer\n");
cx88_alsa_dma_unmap(chip);
cx88_alsa_dma_free(chip->buf);
if (risc->cpu)
@@ -431,6 +427,7 @@ static int snd_cx88_pcm_open(struct snd_pcm_substream *substream)
if (cx88_sram_channels[SRAM_CH25].fifo_size != DEFAULT_FIFO_SIZE) {
unsigned int bpl = cx88_sram_channels[SRAM_CH25].fifo_size / 4;
+
bpl &= ~7; /* must be multiple of 8 */
runtime->hw.period_bytes_min = bpl;
runtime->hw.period_bytes_max = bpl;
@@ -438,7 +435,7 @@ static int snd_cx88_pcm_open(struct snd_pcm_substream *substream)
return 0;
_error:
- dprintk(1,"Error opening PCM!\n");
+ dprintk(1, "Error opening PCM!\n");
return err;
}
@@ -453,8 +450,8 @@ static int snd_cx88_close(struct snd_pcm_substream *substream)
/*
* hw_params callback
*/
-static int snd_cx88_hw_params(struct snd_pcm_substream * substream,
- struct snd_pcm_hw_params * hw_params)
+static int snd_cx88_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
{
snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
@@ -474,7 +471,7 @@ static int snd_cx88_hw_params(struct snd_pcm_substream * substream,
BUG_ON(chip->num_periods & (chip->num_periods-1));
buf = kzalloc(sizeof(*buf), GFP_KERNEL);
- if (NULL == buf)
+ if (buf == NULL)
return -ENOMEM;
chip->buf = buf;
@@ -511,7 +508,7 @@ error:
/*
* hw free callback
*/
-static int snd_cx88_hw_free(struct snd_pcm_substream * substream)
+static int snd_cx88_hw_free(struct snd_pcm_substream *substream)
{
snd_cx88_card_t *chip = snd_pcm_substream_chip(substream);
@@ -545,13 +542,13 @@ static int snd_cx88_card_trigger(struct snd_pcm_substream *substream, int cmd)
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
- err=_cx88_start_audio_dma(chip);
+ err = _cx88_start_audio_dma(chip);
break;
case SNDRV_PCM_TRIGGER_STOP:
- err=_cx88_stop_audio_dma(chip);
+ err = _cx88_stop_audio_dma(chip);
break;
default:
- err=-EINVAL;
+ err = -EINVAL;
break;
}
@@ -584,6 +581,7 @@ static struct page *snd_cx88_page(struct snd_pcm_substream *substream,
unsigned long offset)
{
void *pageptr = substream->runtime->dma_area + offset;
+
return vmalloc_to_page(pageptr);
}
@@ -638,7 +636,7 @@ static int snd_cx88_volume_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *value)
{
snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
- struct cx88_core *core=chip->core;
+ struct cx88_core *core = chip->core;
int vol = 0x3f - (cx_read(AUD_VOL_CTL) & 0x3f),
bal = cx_read(AUD_BAL_CTL);
@@ -675,7 +673,7 @@ static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *value)
{
snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
- struct cx88_core *core=chip->core;
+ struct cx88_core *core = chip->core;
int left, right, v, b;
int changed = 0;
u32 old;
@@ -814,8 +812,8 @@ static struct snd_kcontrol_new snd_cx88_alc_switch = {
*/
static const struct pci_device_id cx88_audio_pci_tbl[] = {
- {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
- {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
+ {0x14f1, 0x8801, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ {0x14f1, 0x8811, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
{0, }
};
MODULE_DEVICE_TABLE(pci, cx88_audio_pci_tbl);
@@ -830,7 +828,7 @@ static int snd_cx88_free(snd_cx88_card_t *chip)
if (chip->irq >= 0)
free_irq(chip->irq, chip);
- cx88_core_put(chip->core,chip->pci);
+ cx88_core_put(chip->core, chip->pci);
pci_disable_device(chip->pci);
return 0;
@@ -839,7 +837,7 @@ static int snd_cx88_free(snd_cx88_card_t *chip)
/*
* Component Destructor
*/
-static void snd_cx88_dev_free(struct snd_card * card)
+static void snd_cx88_dev_free(struct snd_card *card)
{
snd_cx88_card_t *chip = card->private_data;
@@ -872,14 +870,14 @@ static int snd_cx88_create(struct snd_card *card, struct pci_dev *pci,
chip = card->private_data;
core = cx88_core_get(pci);
- if (NULL == core) {
+ if (core == NULL) {
err = -EINVAL;
return err;
}
- err = pci_set_dma_mask(pci,DMA_BIT_MASK(32));
+ err = pci_set_dma_mask(pci, DMA_BIT_MASK(32));
if (err) {
- dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
+ dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n", core->name);
cx88_core_put(core, pci);
return err;
}
@@ -908,7 +906,7 @@ static int snd_cx88_create(struct snd_card *card, struct pci_dev *pci,
dprintk(1, "ALSA %s/%i: found at %s, rev: %d, irq: %d, latency: %d, mmio: 0x%llx\n",
core->name, devno,
pci_name(pci), pci->revision, pci->irq,
- pci_lat, (unsigned long long)pci_resource_start(pci,0));
+ pci_lat, (unsigned long long)pci_resource_start(pci, 0));
chip->irq = pci->irq;
synchronize_irq(chip->irq);
@@ -964,19 +962,20 @@ static int cx88_audio_initdev(struct pci_dev *pci,
if (core->sd_wm8775)
snd_ctl_add(card, snd_ctl_new1(&snd_cx88_alc_switch, chip));
- strcpy (card->driver, "CX88x");
+ strcpy(card->driver, "CX88x");
sprintf(card->shortname, "Conexant CX%x", pci->device);
sprintf(card->longname, "%s at %#llx",
- card->shortname,(unsigned long long)pci_resource_start(pci, 0));
- strcpy (card->mixername, "CX88");
+ card->shortname,
+ (unsigned long long)pci_resource_start(pci, 0));
+ strcpy(card->mixername, "CX88");
- dprintk (0, "%s/%i: ALSA support for cx2388x boards\n",
- card->driver,devno);
+ dprintk(0, "%s/%i: ALSA support for cx2388x boards\n",
+ card->driver, devno);
err = snd_card_register(card);
if (err < 0)
goto error;
- pci_set_drvdata(pci,card);
+ pci_set_drvdata(pci, card);
devno++;
return 0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-20 10:05:02 +0000