From: sai <sai@sai-desktop.(none)>
---
drivers/staging/cx25821/cx25821-alsa.c | 76 +++++++++++++++++---------------
1 files changed, 41 insertions(+), 35 deletions(-)
diff --git a/drivers/staging/cx25821/cx25821-alsa.c b/drivers/staging/cx25821/cx25821-alsa.c
index e0eef12..e004efd 100644
--- a/drivers/staging/cx25821/cx25821-alsa.c
+++ b/drivers/staging/cx25821/cx25821-alsa.c
@@ -28,7 +28,7 @@
#include <linux/dma-mapping.h>
#include <linux/pci.h>
-#include <asm/delay.h>
+#include <linux/delay.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@@ -41,10 +41,10 @@
#define AUDIO_SRAM_CHANNEL SRAM_CH08
-#define dprintk(level,fmt, arg...) if (debug >= level) \
+#define dprintk(level, fmt, arg...) if (debug >= level) \
printk(KERN_INFO "%s/1: " fmt, chip->dev->name , ## arg)
-#define dprintk_core(level,fmt, arg...) if (debug >= level) \
+#define dprintk_core(level, fmt, arg...) if (debug >= level) \
printk(KERN_DEBUG "%s/1: " fmt, chip->dev->name , ## arg)
/****************************************************************************
@@ -104,7 +104,7 @@ MODULE_PARM_DESC(index, "Index value for cx25821 capture interface(s).");
MODULE_DESCRIPTION("ALSA driver module for cx25821 based capture cards");
MODULE_AUTHOR("Hiep Huynh");
MODULE_LICENSE("GPL");
-MODULE_SUPPORTED_DEVICE("{{Conexant,25821}"); //"{{Conexant,23881},"
+MODULE_SUPPORTED_DEVICE("{{Conexant,25821}"); /* "{{Conexant,23881}," */
static unsigned int debug;
module_param(debug, int, 0644);
@@ -134,7 +134,7 @@ MODULE_PARM_DESC(debug, "enable debug messages");
* BOARD Specific: Sets audio DMA
*/
-static int _cx25821_start_audio_dma(snd_cx25821_card_t * chip)
+static int _cx25821_start_audio_dma(snd_cx25821_card_t *chip)
{
struct cx25821_buffer *buf = chip->buf;
struct cx25821_dev *dev = chip->dev;
@@ -142,7 +142,7 @@ static int _cx25821_start_audio_dma(snd_cx25821_card_t * chip)
&cx25821_sram_channels[AUDIO_SRAM_CHANNEL];
u32 tmp = 0;
- // enable output on the GPIO 0 for the MCLK ADC (Audio)
+ /* enable output on the GPIO 0 for the MCLK ADC (Audio) */
cx25821_set_gpiopin_direction(chip->dev, 0, 0);
/* Make sure RISC/FIFO are off before changing FIFO/RISC settings */
@@ -157,18 +157,22 @@ static int _cx25821_start_audio_dma(snd_cx25821_card_t * chip)
cx_write(AUD_A_LNGTH, buf->bpl);
/* reset counter */
- cx_write(AUD_A_GPCNT_CTL, GP_COUNT_CONTROL_RESET); //GP_COUNT_CONTROL_RESET = 0x3
+ /* GP_COUNT_CONTROL_RESET = 0x3 */
+ cx_write(AUD_A_GPCNT_CTL, GP_COUNT_CONTROL_RESET);
atomic_set(&chip->count, 0);
- //Set the input mode to 16-bit
+ /* Set the input mode to 16-bit */
tmp = cx_read(AUD_A_CFG);
cx_write(AUD_A_CFG,
tmp | FLD_AUD_DST_PK_MODE | FLD_AUD_DST_ENABLE |
FLD_AUD_CLK_ENABLE);
- //printk(KERN_INFO "DEBUG: Start audio DMA, %d B/line, cmds_start(0x%x)= %d lines/FIFO, %d periods, %d "
- // "byte buffer\n", buf->bpl, audio_ch->cmds_start, cx_read(audio_ch->cmds_start + 12)>>1,
- // chip->num_periods, buf->bpl * chip->num_periods);
+ /* printk(KERN_INFO "DEBUG: Start audio DMA, %d B/line,
+ * cmds_start(0x%x)= %d lines/FIFO, %d periods, %d " "byte buffer\n",
+ * buf->bpl, audio_ch->cmds_start,
+ * cx_read(audio_ch->cmds_start + 12)>>1,
+ * chip->num_periods, buf->bpl * chip->num_periods);
+ */
/* Enables corresponding bits at AUD_INT_STAT */
cx_write(AUD_A_INT_MSK,
@@ -181,7 +185,7 @@ static int _cx25821_start_audio_dma(snd_cx25821_card_t * chip)
/* enable audio irqs */
cx_set(PCI_INT_MSK, chip->dev->pci_irqmask | PCI_MSK_AUD_INT);
- // Turn on audio downstream fifo and risc enable 0x101
+ /* Turn on audio downstream fifo and risc enable 0x101 */
tmp = cx_read(AUD_INT_DMA_CTL);
cx_set(AUD_INT_DMA_CTL,
tmp | (FLD_AUD_DST_A_RISC_EN | FLD_AUD_DST_A_FIFO_EN));
@@ -193,7 +197,7 @@ static int _cx25821_start_audio_dma(snd_cx25821_card_t * chip)
/*
* BOARD Specific: Resets audio DMA
*/
-static int _cx25821_stop_audio_dma(snd_cx25821_card_t * chip)
+static int _cx25821_stop_audio_dma(snd_cx25821_card_t *chip)
{
struct cx25821_dev *dev = chip->dev;
@@ -231,13 +235,13 @@ static char *cx25821_aud_irqs[32] = {
/*
* BOARD Specific: Threats IRQ audio specific calls
*/
-static void cx25821_aud_irq(snd_cx25821_card_t * chip, u32 status, u32 mask)
+static void cx25821_aud_irq(snd_cx25821_card_t *chip, u32 status, u32 mask)
{
struct cx25821_dev *dev = chip->dev;
- if (0 == (status & mask)) {
+ if (0 == (status & mask))
return;
- }
+
cx_write(AUD_A_INT_STAT, status);
if (debug > 1 || (status & mask & ~0xff))
@@ -317,11 +321,11 @@ static irqreturn_t cx25821_irq(int irq, void *dev_id)
if (handled)
cx_write(PCI_INT_STAT, pci_status);
- out:
+out:
return IRQ_RETVAL(handled);
}
-static int dsp_buffer_free(snd_cx25821_card_t * chip)
+static int dsp_buffer_free(snd_cx25821_card_t *chip)
{
BUG_ON(!chip->dma_size);
@@ -362,7 +366,8 @@ static struct snd_pcm_hardware snd_cx25821_digital_hw = {
.period_bytes_max = DEFAULT_FIFO_SIZE / 3,
.periods_min = 1,
.periods_max = AUDIO_LINE_SIZE,
- .buffer_bytes_max = (AUDIO_LINE_SIZE * AUDIO_LINE_SIZE), //128*128 = 16384 = 1024 * 16
+ /* 128*128 = 16384 = 1024 * 16 */
+ .buffer_bytes_max = (AUDIO_LINE_SIZE * AUDIO_LINE_SIZE),
};
/*
@@ -392,18 +397,19 @@ static int snd_cx25821_pcm_open(struct snd_pcm_substream *substream)
if (cx25821_sram_channels[AUDIO_SRAM_CHANNEL].fifo_size !=
DEFAULT_FIFO_SIZE) {
- bpl = cx25821_sram_channels[AUDIO_SRAM_CHANNEL].fifo_size / 3; //since there are 3 audio Clusters
+ /*since there are 3 audio Clusters */
+ bpl = cx25821_sram_channels[AUDIO_SRAM_CHANNEL].fifo_size / 3;
bpl &= ~7; /* must be multiple of 8 */
- if (bpl > AUDIO_LINE_SIZE) {
+ if (bpl > AUDIO_LINE_SIZE)
bpl = AUDIO_LINE_SIZE;
- }
+
runtime->hw.period_bytes_min = bpl;
runtime->hw.period_bytes_max = bpl;
}
return 0;
- _error:
+_error:
dprintk(1, "Error opening PCM!\n");
return err;
}
@@ -444,9 +450,8 @@ static int snd_cx25821_hw_params(struct snd_pcm_substream *substream,
if (NULL == buf)
return -ENOMEM;
- if (chip->period_size > AUDIO_LINE_SIZE) {
+ if (chip->period_size > AUDIO_LINE_SIZE)
chip->period_size = AUDIO_LINE_SIZE;
- }
buf->vb.memory = V4L2_MEMORY_MMAP;
buf->vb.field = V4L2_FIELD_NONE;
@@ -473,7 +478,7 @@ static int snd_cx25821_hw_params(struct snd_pcm_substream *substream,
buf->vb.width, buf->vb.height, 1);
if (ret < 0) {
printk(KERN_INFO
- "DEBUG: ERROR after cx25821_risc_databuffer_audio() \n");
+ "DEBUG:ERROR after cx25821_risc_databuffer_audio()\n");
goto error;
}
@@ -493,7 +498,7 @@ static int snd_cx25821_hw_params(struct snd_pcm_substream *substream,
return 0;
- error:
+error:
kfree(buf);
return ret;
}
@@ -592,10 +597,10 @@ static struct snd_pcm_ops snd_cx25821_pcm_ops = {
};
/*
- * ALSA create a PCM device: Called when initializing the board. Sets up the name and hooks up
- * the callbacks
+ * ALSA create a PCM device: Called when initializing the board. Sets up the
+ * name and hooks up the callbacks
*/
-static int snd_cx25821_pcm(snd_cx25821_card_t * chip, int device, char *name)
+static int snd_cx25821_pcm(snd_cx25821_card_t *chip, int device, char *name)
{
struct snd_pcm *pcm;
int err;
@@ -654,7 +659,7 @@ static void snd_cx25821_dev_free(struct snd_card *card)
{
snd_cx25821_card_t *chip = card->private_data;
- //snd_cx25821_free(chip);
+ /*snd_cx25821_free(chip);*/
snd_card_free(chip->card);
}
@@ -670,13 +675,13 @@ static int cx25821_audio_initdev(struct cx25821_dev *dev)
if (devno >= SNDRV_CARDS) {
printk(KERN_INFO "DEBUG ERROR: devno >= SNDRV_CARDS %s\n",
__func__);
- return (-ENODEV);
+ return -ENODEV;
}
if (!enable[devno]) {
++devno;
printk(KERN_INFO "DEBUG ERROR: !enable[devno] %s\n", __func__);
- return (-ENOENT);
+ return -ENOENT;
}
err = snd_card_create(index[devno], id[devno], THIS_MODULE,
@@ -711,7 +716,8 @@ static int cx25821_audio_initdev(struct cx25821_dev *dev)
goto error;
}
- if ((err = snd_cx25821_pcm(chip, 0, "cx25821 Digital")) < 0) {
+ err = snd_cx25821_pcm(chip, 0, "cx25821 Digital");
+ if (err < 0) {
printk(KERN_INFO
"DEBUG ERROR: cannot create snd_cx25821_pcm %s\n",
__func__);
@@ -740,7 +746,7 @@ static int cx25821_audio_initdev(struct cx25821_dev *dev)
devno++;
return 0;
- error:
+error:
snd_card_free(card);
return err;
}
--
1.6.3.3
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