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Diffstat (limited to 'drivers/staging/cx25821/cx25821-alsa.c')
-rw-r--r--drivers/staging/cx25821/cx25821-alsa.c413
1 files changed, 206 insertions, 207 deletions
diff --git a/drivers/staging/cx25821/cx25821-alsa.c b/drivers/staging/cx25821/cx25821-alsa.c
index 3ab5641d298c..0e162f7c8ab8 100644
--- a/drivers/staging/cx25821/cx25821-alsa.c
+++ b/drivers/staging/cx25821/cx25821-alsa.c
@@ -1,26 +1,25 @@
-/*
- * Driver for the Conexant CX25821 PCIe bridge
- *
- * Copyright (C) 2009 Conexant Systems Inc.
- * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
- * Based on SAA713x ALSA driver and CX88 driver
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, version 2
- *
- * This program is distributed in the hope that it will be useful,
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-
+/*
+ * Driver for the Conexant CX25821 PCIe bridge
+ *
+ * Copyright (C) 2009 Conexant Systems Inc.
+ * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
+ * Based on SAA713x ALSA driver and CX88 driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 2
+ *
+ * This program is distributed in the hope that it will be useful,
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
@@ -37,7 +36,6 @@
#include <sound/initval.h>
#include <sound/tlv.h>
-
#include "cx25821.h"
#include "cx25821-reg.h"
@@ -49,52 +47,49 @@
#define dprintk_core(level,fmt, arg...) if (debug >= level) \
printk(KERN_DEBUG "%s/1: " fmt, chip->dev->name , ## arg)
-
/****************************************************************************
Data type declarations - Can be moded to a header file later
****************************************************************************/
-
static struct snd_card *snd_cx25821_cards[SNDRV_CARDS];
static int devno;
struct cx25821_audio_dev {
- struct cx25821_dev *dev;
- struct cx25821_dmaqueue q;
+ struct cx25821_dev *dev;
+ struct cx25821_dmaqueue q;
/* pci i/o */
- struct pci_dev *pci;
+ struct pci_dev *pci;
/* audio controls */
- int irq;
+ int irq;
- struct snd_card *card;
+ struct snd_card *card;
unsigned long iobase;
- spinlock_t reg_lock;
- atomic_t count;
+ spinlock_t reg_lock;
+ atomic_t count;
- unsigned int dma_size;
- unsigned int period_size;
- unsigned int num_periods;
+ unsigned int dma_size;
+ unsigned int period_size;
+ unsigned int num_periods;
- struct videobuf_dmabuf *dma_risc;
+ struct videobuf_dmabuf *dma_risc;
- struct cx25821_buffer *buf;
+ struct cx25821_buffer *buf;
- struct snd_pcm_substream *substream;
+ struct snd_pcm_substream *substream;
};
typedef struct cx25821_audio_dev snd_cx25821_card_t;
-
/****************************************************************************
Module global static vars
****************************************************************************/
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)] = 1};
+static int enable[SNDRV_CARDS] = { 1,[1...(SNDRV_CARDS - 1)] = 1 };
module_param_array(enable, bool, NULL, 0444);
MODULE_PARM_DESC(enable, "Enable cx25821 soundcard. default enabled.");
@@ -102,7 +97,6 @@ MODULE_PARM_DESC(enable, "Enable cx25821 soundcard. default enabled.");
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for cx25821 capture interface(s).");
-
/****************************************************************************
Module macros
****************************************************************************/
@@ -110,11 +104,11 @@ 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);
-MODULE_PARM_DESC(debug,"enable debug messages");
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable debug messages");
/****************************************************************************
Module specific funtions
@@ -123,7 +117,7 @@ MODULE_PARM_DESC(debug,"enable debug messages");
#define AUD_INT_DN_RISCI1 (1 << 0)
#define AUD_INT_UP_RISCI1 (1 << 1)
#define AUD_INT_RDS_DN_RISCI1 (1 << 2)
-#define AUD_INT_DN_RISCI2 (1 << 4) /* yes, 3 is skipped */
+#define AUD_INT_DN_RISCI2 (1 << 4) /* yes, 3 is skipped */
#define AUD_INT_UP_RISCI2 (1 << 5)
#define AUD_INT_RDS_DN_RISCI2 (1 << 6)
#define AUD_INT_DN_SYNC (1 << 12)
@@ -140,40 +134,46 @@ 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;
- struct sram_channel *audio_ch = &cx25821_sram_channels[AUDIO_SRAM_CHANNEL];
+ struct cx25821_buffer *buf = chip->buf;
+ struct cx25821_dev *dev = chip->dev;
+ struct sram_channel *audio_ch =
+ &cx25821_sram_channels[AUDIO_SRAM_CHANNEL];
u32 tmp = 0;
// enable output on the GPIO 0 for the MCLK ADC (Audio)
- cx25821_set_gpiopin_direction( chip->dev, 0, 0 );
+ cx25821_set_gpiopin_direction(chip->dev, 0, 0);
/* Make sure RISC/FIFO are off before changing FIFO/RISC settings */
- cx_clear(AUD_INT_DMA_CTL, FLD_AUD_DST_A_RISC_EN | FLD_AUD_DST_A_FIFO_EN );
+ cx_clear(AUD_INT_DMA_CTL,
+ FLD_AUD_DST_A_RISC_EN | FLD_AUD_DST_A_FIFO_EN);
/* setup fifo + format - out channel */
- cx25821_sram_channel_setup_audio(chip->dev, audio_ch, buf->bpl, buf->risc.dma);
+ cx25821_sram_channel_setup_audio(chip->dev, audio_ch, buf->bpl,
+ buf->risc.dma);
/* sets bpl size */
cx_write(AUD_A_LNGTH, buf->bpl);
/* reset counter */
- cx_write(AUD_A_GPCNT_CTL, GP_COUNT_CONTROL_RESET); //GP_COUNT_CONTROL_RESET = 0x3
+ cx_write(AUD_A_GPCNT_CTL, GP_COUNT_CONTROL_RESET); //GP_COUNT_CONTROL_RESET = 0x3
atomic_set(&chip->count, 0);
- //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);
+ //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);
-
+ // "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, FLD_AUD_DST_RISCI1 | FLD_AUD_DST_OF | FLD_AUD_DST_SYNC | FLD_AUD_DST_OPC_ERR );
+ cx_write(AUD_A_INT_MSK,
+ FLD_AUD_DST_RISCI1 | FLD_AUD_DST_OF | FLD_AUD_DST_SYNC |
+ FLD_AUD_DST_OPC_ERR);
/* Clean any pending interrupt bits already set */
cx_write(AUD_A_INT_STAT, ~0);
@@ -181,9 +181,10 @@ 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
- 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) );
+ // 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));
mdelay(100);
return 0;
@@ -192,16 +193,19 @@ 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;
/* stop dma */
- cx_clear(AUD_INT_DMA_CTL, FLD_AUD_DST_A_RISC_EN | FLD_AUD_DST_A_FIFO_EN );
+ cx_clear(AUD_INT_DMA_CTL,
+ FLD_AUD_DST_A_RISC_EN | FLD_AUD_DST_A_FIFO_EN);
/* disable irqs */
cx_clear(PCI_INT_MSK, PCI_MSK_AUD_INT);
- cx_clear(AUD_A_INT_MSK, AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | AUD_INT_DN_RISCI2 | AUD_INT_DN_RISCI1);
+ cx_clear(AUD_A_INT_MSK,
+ AUD_INT_OPC_ERR | AUD_INT_DN_SYNC | AUD_INT_DN_RISCI2 |
+ AUD_INT_DN_RISCI1);
return 0;
}
@@ -212,50 +216,54 @@ static int _cx25821_stop_audio_dma(snd_cx25821_card_t *chip)
* BOARD Specific: IRQ dma bits
*/
static char *cx25821_aud_irqs[32] = {
- "dn_risci1", "up_risci1", "rds_dn_risc1", /* 0-2 */
- NULL, /* reserved */
- "dn_risci2", "up_risci2", "rds_dn_risc2", /* 4-6 */
- NULL, /* reserved */
- "dnf_of", "upf_uf", "rds_dnf_uf", /* 8-10 */
- NULL, /* reserved */
- "dn_sync", "up_sync", "rds_dn_sync", /* 12-14 */
- NULL, /* reserved */
- "opc_err", "par_err", "rip_err", /* 16-18 */
- "pci_abort", "ber_irq", "mchg_irq" /* 19-21 */
+ "dn_risci1", "up_risci1", "rds_dn_risc1", /* 0-2 */
+ NULL, /* reserved */
+ "dn_risci2", "up_risci2", "rds_dn_risc2", /* 4-6 */
+ NULL, /* reserved */
+ "dnf_of", "upf_uf", "rds_dnf_uf", /* 8-10 */
+ NULL, /* reserved */
+ "dn_sync", "up_sync", "rds_dn_sync", /* 12-14 */
+ NULL, /* reserved */
+ "opc_err", "par_err", "rip_err", /* 16-18 */
+ "pci_abort", "ber_irq", "mchg_irq" /* 19-21 */
};
/*
* 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))
+ if (debug > 1 || (status & mask & ~0xff))
cx25821_print_irqbits(dev->name, "irq aud",
- cx25821_aud_irqs, ARRAY_SIZE(cx25821_aud_irqs),
- status, mask);
+ cx25821_aud_irqs,
+ ARRAY_SIZE(cx25821_aud_irqs), status,
+ mask);
/* risc op code error */
if (status & AUD_INT_OPC_ERR) {
- printk(KERN_WARNING "WARNING %s/1: Audio risc op code error\n",dev->name);
-
- cx_clear(AUD_INT_DMA_CTL, FLD_AUD_DST_A_RISC_EN | FLD_AUD_DST_A_FIFO_EN );
- cx25821_sram_channel_dump_audio(dev, &cx25821_sram_channels[AUDIO_SRAM_CHANNEL]);
+ printk(KERN_WARNING "WARNING %s/1: Audio risc op code error\n",
+ dev->name);
+
+ cx_clear(AUD_INT_DMA_CTL,
+ FLD_AUD_DST_A_RISC_EN | FLD_AUD_DST_A_FIFO_EN);
+ cx25821_sram_channel_dump_audio(dev,
+ &cx25821_sram_channels
+ [AUDIO_SRAM_CHANNEL]);
}
if (status & AUD_INT_DN_SYNC) {
- printk(KERN_WARNING "WARNING %s: Downstream sync error!\n",dev->name);
+ printk(KERN_WARNING "WARNING %s: Downstream sync error!\n",
+ dev->name);
cx_write(AUD_A_GPCNT_CTL, GP_COUNT_CONTROL_RESET);
return;
}
-
/* risc1 downstream */
if (status & AUD_INT_DN_RISCI1) {
atomic_set(&chip->count, cx_read(AUD_A_GPCNT));
@@ -263,7 +271,6 @@ static void cx25821_aud_irq(snd_cx25821_card_t *chip, u32 status, u32 mask)
}
}
-
/*
* BOARD Specific: Handles IRQ calls
*/
@@ -276,30 +283,26 @@ static irqreturn_t cx25821_irq(int irq, void *dev_id)
int loop, handled = 0;
int audint_count = 0;
-
audint_status = cx_read(AUD_A_INT_STAT);
- audint_mask = cx_read(AUD_A_INT_MSK);
+ audint_mask = cx_read(AUD_A_INT_MSK);
audint_count = cx_read(AUD_A_GPCNT);
status = cx_read(PCI_INT_STAT);
- for (loop = 0; loop < 1; loop++)
- {
+ for (loop = 0; loop < 1; loop++) {
status = cx_read(PCI_INT_STAT);
- if (0 == status)
- {
+ if (0 == status) {
status = cx_read(PCI_INT_STAT);
audint_status = cx_read(AUD_A_INT_STAT);
audint_mask = cx_read(AUD_A_INT_MSK);
- if (status)
- {
+ if (status) {
handled = 1;
cx_write(PCI_INT_STAT, status);
- cx25821_aud_irq(chip, audint_status, audint_mask);
+ cx25821_aud_irq(chip, audint_status,
+ audint_mask);
break;
- }
- else
+ } else
goto out;
}
@@ -314,19 +317,18 @@ 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);
- dprintk(2,"Freeing buffer\n");
+ dprintk(2, "Freeing buffer\n");
videobuf_sg_dma_unmap(&chip->pci->dev, chip->dma_risc);
videobuf_dma_free(chip->dma_risc);
- btcx_riscmem_free(chip->pci,&chip->buf->risc);
+ btcx_riscmem_free(chip->pci, &chip->buf->risc);
kfree(chip->buf);
chip->dma_risc = NULL;
@@ -345,27 +347,24 @@ static int dsp_buffer_free(snd_cx25821_card_t *chip)
#define DEFAULT_FIFO_SIZE 384
static struct snd_pcm_hardware snd_cx25821_digital_hw = {
.info = SNDRV_PCM_INFO_MMAP |
- SNDRV_PCM_INFO_INTERLEAVED |
- SNDRV_PCM_INFO_BLOCK_TRANSFER |
- SNDRV_PCM_INFO_MMAP_VALID,
+ SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID,
.formats = SNDRV_PCM_FMTBIT_S16_LE,
- .rates = SNDRV_PCM_RATE_48000,
- .rate_min = 48000,
- .rate_max = 48000,
+ .rates = SNDRV_PCM_RATE_48000,
+ .rate_min = 48000,
+ .rate_max = 48000,
.channels_min = 2,
.channels_max = 2,
/* Analog audio output will be full of clicks and pops if there
are not exactly four lines in the SRAM FIFO buffer. */
- .period_bytes_min = DEFAULT_FIFO_SIZE/3,
- .period_bytes_max = DEFAULT_FIFO_SIZE/3,
+ .period_bytes_min = DEFAULT_FIFO_SIZE / 3,
+ .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
+ .buffer_bytes_max = (AUDIO_LINE_SIZE * AUDIO_LINE_SIZE), //128*128 = 16384 = 1024 * 16
};
-
-
/*
* audio pcm capture open callback
*/
@@ -378,11 +377,12 @@ static int snd_cx25821_pcm_open(struct snd_pcm_substream *substream)
if (!chip) {
printk(KERN_ERR "DEBUG: cx25821 can't find device struct."
- " Can't proceed with open\n");
+ " Can't proceed with open\n");
return -ENODEV;
}
- err = snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS);
+ err =
+ snd_pcm_hw_constraint_pow2(runtime, 0, SNDRV_PCM_HW_PARAM_PERIODS);
if (err < 0)
goto _error;
@@ -390,13 +390,12 @@ static int snd_cx25821_pcm_open(struct snd_pcm_substream *substream)
runtime->hw = snd_cx25821_digital_hw;
- 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
- bpl &= ~7; /* must be multiple of 8 */
+ 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
+ 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;
@@ -404,8 +403,8 @@ static int snd_cx25821_pcm_open(struct snd_pcm_substream *substream)
}
return 0;
-_error:
- dprintk(1,"Error opening PCM!\n");
+ _error:
+ dprintk(1, "Error opening PCM!\n");
return err;
}
@@ -420,8 +419,8 @@ static int snd_cx25821_close(struct snd_pcm_substream *substream)
/*
* hw_params callback
*/
-static int snd_cx25821_hw_params(struct snd_pcm_substream * substream,
- struct snd_pcm_hw_params * hw_params)
+static int snd_cx25821_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *hw_params)
{
snd_cx25821_card_t *chip = snd_pcm_substream_chip(substream);
struct videobuf_dmabuf *dma;
@@ -434,37 +433,34 @@ static int snd_cx25821_hw_params(struct snd_pcm_substream * substream,
substream->runtime->dma_area = NULL;
}
-
chip->period_size = params_period_bytes(hw_params);
chip->num_periods = params_periods(hw_params);
chip->dma_size = chip->period_size * params_periods(hw_params);
BUG_ON(!chip->dma_size);
- BUG_ON(chip->num_periods & (chip->num_periods-1));
+ BUG_ON(chip->num_periods & (chip->num_periods - 1));
buf = videobuf_sg_alloc(sizeof(*buf));
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;
- buf->vb.width = chip->period_size;
- buf->bpl = chip->period_size;
+ buf->vb.field = V4L2_FIELD_NONE;
+ buf->vb.width = chip->period_size;
+ buf->bpl = chip->period_size;
buf->vb.height = chip->num_periods;
- buf->vb.size = chip->dma_size;
+ buf->vb.size = chip->dma_size;
dma = videobuf_to_dma(&buf->vb);
videobuf_dma_init(dma);
ret = videobuf_dma_init_kernel(dma, PCI_DMA_FROMDEVICE,
- (PAGE_ALIGN(buf->vb.size) >> PAGE_SHIFT));
+ (PAGE_ALIGN(buf->vb.size) >>
+ PAGE_SHIFT));
if (ret < 0)
goto error;
@@ -472,19 +468,19 @@ static int snd_cx25821_hw_params(struct snd_pcm_substream * substream,
if (ret < 0)
goto error;
-
- ret = cx25821_risc_databuffer_audio(chip->pci, &buf->risc, dma->sglist, buf->vb.width, buf->vb.height, 1);
- if (ret < 0)
- {
- printk(KERN_INFO "DEBUG: ERROR after cx25821_risc_databuffer_audio() \n");
+ ret =
+ cx25821_risc_databuffer_audio(chip->pci, &buf->risc, dma->sglist,
+ buf->vb.width, buf->vb.height, 1);
+ if (ret < 0) {
+ printk(KERN_INFO
+ "DEBUG: ERROR after cx25821_risc_databuffer_audio() \n");
goto error;
}
-
/* Loop back to start of program */
- buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP|RISC_IRQ1|RISC_CNT_INC);
+ buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
- buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
+ buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
buf->vb.state = VIDEOBUF_PREPARED;
@@ -497,7 +493,7 @@ static int snd_cx25821_hw_params(struct snd_pcm_substream * substream,
return 0;
-error:
+ error:
kfree(buf);
return ret;
}
@@ -505,7 +501,7 @@ error:
/*
* hw free callback
*/
-static int snd_cx25821_hw_free(struct snd_pcm_substream * substream)
+static int snd_cx25821_hw_free(struct snd_pcm_substream *substream)
{
snd_cx25821_card_t *chip = snd_pcm_substream_chip(substream);
@@ -528,7 +524,8 @@ static int snd_cx25821_prepare(struct snd_pcm_substream *substream)
/*
* trigger callback
*/
-static int snd_cx25821_card_trigger(struct snd_pcm_substream *substream, int cmd)
+static int snd_cx25821_card_trigger(struct snd_pcm_substream *substream,
+ int cmd)
{
snd_cx25821_card_t *chip = snd_pcm_substream_chip(substream);
int err = 0;
@@ -536,17 +533,16 @@ static int snd_cx25821_card_trigger(struct snd_pcm_substream *substream, int cmd
/* Local interrupts are already disabled by ALSA */
spin_lock(&chip->reg_lock);
- switch (cmd)
- {
- case SNDRV_PCM_TRIGGER_START:
- err = _cx25821_start_audio_dma(chip);
- break;
- case SNDRV_PCM_TRIGGER_STOP:
- err = _cx25821_stop_audio_dma(chip);
- break;
- default:
- err = -EINVAL;
- break;
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ err = _cx25821_start_audio_dma(chip);
+ break;
+ case SNDRV_PCM_TRIGGER_STOP:
+ err = _cx25821_stop_audio_dma(chip);
+ break;
+ default:
+ err = -EINVAL;
+ break;
}
spin_unlock(&chip->reg_lock);
@@ -557,7 +553,8 @@ static int snd_cx25821_card_trigger(struct snd_pcm_substream *substream, int cmd
/*
* pointer callback
*/
-static snd_pcm_uframes_t snd_cx25821_pointer(struct snd_pcm_substream *substream)
+static snd_pcm_uframes_t snd_cx25821_pointer(struct snd_pcm_substream
+ *substream)
{
snd_cx25821_card_t *chip = snd_pcm_substream_chip(substream);
struct snd_pcm_runtime *runtime = substream->runtime;
@@ -565,14 +562,14 @@ static snd_pcm_uframes_t snd_cx25821_pointer(struct snd_pcm_substream *substream
count = atomic_read(&chip->count);
- return runtime->period_size * (count & (runtime->periods-1));
+ return runtime->period_size * (count & (runtime->periods - 1));
}
/*
* page callback (needed for mmap)
*/
static struct page *snd_cx25821_page(struct snd_pcm_substream *substream,
- unsigned long offset)
+ unsigned long offset)
{
void *pageptr = substream->runtime->dma_area + offset;
@@ -594,20 +591,19 @@ static struct snd_pcm_ops snd_cx25821_pcm_ops = {
.page = snd_cx25821_page,
};
-
/*
* 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;
err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm);
- if (err < 0)
- {
- printk(KERN_INFO "ERROR: FAILED snd_pcm_new() in %s\n", __func__);
+ if (err < 0) {
+ printk(KERN_INFO "ERROR: FAILED snd_pcm_new() in %s\n",
+ __func__);
return err;
}
pcm->private_data = chip;
@@ -618,7 +614,6 @@ static int snd_cx25821_pcm(snd_cx25821_card_t *chip, int device, char *name)
return 0;
}
-
/****************************************************************************
Basic Flow for Sound Devices
****************************************************************************/
@@ -629,15 +624,16 @@ static int snd_cx25821_pcm(snd_cx25821_card_t *chip, int device, char *name)
*/
static struct pci_device_id cx25821_audio_pci_tbl[] __devinitdata = {
- {0x14f1,0x0920,PCI_ANY_ID,PCI_ANY_ID,0,0,0},
- {0, }
+ {0x14f1, 0x0920, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+ {0,}
};
+
MODULE_DEVICE_TABLE(pci, cx25821_audio_pci_tbl);
-/*
- * Not used in the function snd_cx25821_dev_free so removing
- * from the file.
- */
+/*
+ * Not used in the function snd_cx25821_dev_free so removing
+ * from the file.
+ */
/*
static int snd_cx25821_free(snd_cx25821_card_t *chip)
{
@@ -649,12 +645,12 @@ static int snd_cx25821_free(snd_cx25821_card_t *chip)
return 0;
}
-*/
+*/
/*
* Component Destructor
*/
-static void snd_cx25821_dev_free(struct snd_card * card)
+static void snd_cx25821_dev_free(struct snd_card *card)
{
snd_cx25821_card_t *chip = card->private_data;
@@ -662,19 +658,18 @@ static void snd_cx25821_dev_free(struct snd_card * card)
snd_card_free(chip->card);
}
-
/*
* Alsa Constructor - Component probe
*/
static int cx25821_audio_initdev(struct cx25821_dev *dev)
{
- struct snd_card *card;
- snd_cx25821_card_t *chip;
- int err;
+ struct snd_card *card;
+ snd_cx25821_card_t *chip;
+ int err;
- if (devno >= SNDRV_CARDS)
- {
- printk(KERN_INFO "DEBUG ERROR: devno >= SNDRV_CARDS %s\n", __func__);
+ if (devno >= SNDRV_CARDS) {
+ printk(KERN_INFO "DEBUG ERROR: devno >= SNDRV_CARDS %s\n",
+ __func__);
return (-ENODEV);
}
@@ -684,10 +679,13 @@ static int cx25821_audio_initdev(struct cx25821_dev *dev)
return (-ENOENT);
}
- card = snd_card_new(index[devno], id[devno], THIS_MODULE, sizeof(snd_cx25821_card_t));
- if (!card)
- {
- printk(KERN_INFO "DEBUG ERROR: cannot create snd_card_new in %s\n", __func__);
+ card =
+ snd_card_new(index[devno], id[devno], THIS_MODULE,
+ sizeof(snd_cx25821_card_t));
+ if (!card) {
+ printk(KERN_INFO
+ "DEBUG ERROR: cannot create snd_card_new in %s\n",
+ __func__);
return (-ENOMEM);
}
@@ -703,37 +701,38 @@ static int cx25821_audio_initdev(struct cx25821_dev *dev)
chip->pci = dev->pci;
chip->iobase = pci_resource_start(dev->pci, 0);
-
chip->irq = dev->pci->irq;
err = request_irq(dev->pci->irq, cx25821_irq,
IRQF_SHARED | IRQF_DISABLED, chip->dev->name, chip);
if (err < 0) {
- printk(KERN_ERR "ERROR %s: can't get IRQ %d for ALSA\n", chip->dev->name, dev->pci->irq);
+ printk(KERN_ERR "ERROR %s: can't get IRQ %d for ALSA\n",
+ chip->dev->name, dev->pci->irq);
goto error;
}
-
- if ((err = snd_cx25821_pcm(chip, 0, "cx25821 Digital")) < 0)
- {
- printk(KERN_INFO "DEBUG ERROR: cannot create snd_cx25821_pcm %s\n", __func__);
+ if ((err = snd_cx25821_pcm(chip, 0, "cx25821 Digital")) < 0) {
+ printk(KERN_INFO
+ "DEBUG ERROR: cannot create snd_cx25821_pcm %s\n",
+ __func__);
goto error;
}
snd_card_set_dev(card, &chip->pci->dev);
-
strcpy(card->shortname, "cx25821");
- sprintf(card->longname, "%s at 0x%lx irq %d", chip->dev->name, chip->iobase, chip->irq);
- strcpy (card->mixername, "CX25821");
+ sprintf(card->longname, "%s at 0x%lx irq %d", chip->dev->name,
+ chip->iobase, chip->irq);
+ strcpy(card->mixername, "CX25821");
- printk(KERN_INFO "%s/%i: ALSA support for cx25821 boards\n", card->driver, devno);
+ printk(KERN_INFO "%s/%i: ALSA support for cx25821 boards\n",
+ card->driver, devno);
err = snd_card_register(card);
- if (err < 0)
- {
- printk(KERN_INFO "DEBUG ERROR: cannot register sound card %s\n", __func__);
+ if (err < 0) {
+ printk(KERN_INFO "DEBUG ERROR: cannot register sound card %s\n",
+ __func__);
goto error;
}
@@ -742,12 +741,11 @@ static int cx25821_audio_initdev(struct cx25821_dev *dev)
devno++;
return 0;
-error:
+ error:
snd_card_free(card);
return err;
}
-
/****************************************************************************
LINUX MODULE INIT
****************************************************************************/
@@ -768,13 +766,14 @@ static int cx25821_alsa_init(void)
struct cx25821_dev *dev = NULL;
struct list_head *list;
- list_for_each(list,&cx25821_devlist) {
+ list_for_each(list, &cx25821_devlist) {
dev = list_entry(list, struct cx25821_dev, devlist);
cx25821_audio_initdev(dev);
}
if (dev == NULL)
- printk(KERN_INFO "cx25821 ERROR ALSA: no cx25821 cards found\n");
+ printk(KERN_INFO
+ "cx25821 ERROR ALSA: no cx25821 cards found\n");
return 0;
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-16 19:22:50 +0200