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path: root/sound/soc/blackfin/bf5xx-i2s.c
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Diffstat (limited to 'sound/soc/blackfin/bf5xx-i2s.c')
-rw-r--r--sound/soc/blackfin/bf5xx-i2s.c296
1 files changed, 177 insertions, 119 deletions
diff --git a/sound/soc/blackfin/bf5xx-i2s.c b/sound/soc/blackfin/bf5xx-i2s.c
index d453b1e9d60..39d774839b3 100644
--- a/sound/soc/blackfin/bf5xx-i2s.c
+++ b/sound/soc/blackfin/bf5xx-i2s.c
@@ -42,6 +42,7 @@
#include <linux/gpio.h>
#include "bf5xx-sport.h"
+#include "bf5xx-i2s-pcm.h"
struct bf5xx_i2s_port {
u16 tcr1;
@@ -49,67 +50,40 @@ struct bf5xx_i2s_port {
u16 tcr2;
u16 rcr2;
int configured;
-};
-static struct bf5xx_i2s_port bf5xx_i2s;
-static int sport_num = CONFIG_SND_BF5XX_SPORT_NUM;
+ unsigned int slots;
+ unsigned int tx_mask;
+ unsigned int rx_mask;
-static struct sport_param sport_params[2] = {
- {
- .dma_rx_chan = CH_SPORT0_RX,
- .dma_tx_chan = CH_SPORT0_TX,
- .err_irq = IRQ_SPORT0_ERROR,
- .regs = (struct sport_register *)SPORT0_TCR1,
- },
- {
- .dma_rx_chan = CH_SPORT1_RX,
- .dma_tx_chan = CH_SPORT1_TX,
- .err_irq = IRQ_SPORT1_ERROR,
- .regs = (struct sport_register *)SPORT1_TCR1,
- }
+ struct bf5xx_i2s_pcm_data tx_dma_data;
+ struct bf5xx_i2s_pcm_data rx_dma_data;
};
-/*
- * Setting the TFS pin selector for SPORT 0 based on whether the selected
- * port id F or G. If the port is F then no conflict should exist for the
- * TFS. When Port G is selected and EMAC then there is a conflict between
- * the PHY interrupt line and TFS. Current settings prevent the conflict
- * by ignoring the TFS pin when Port G is selected. This allows both
- * codecs and EMAC using Port G concurrently.
- */
-#ifdef CONFIG_BF527_SPORT0_PORTG
-#define LOCAL_SPORT0_TFS (0)
-#else
-#define LOCAL_SPORT0_TFS (P_SPORT0_TFS)
-#endif
-
-static u16 sport_req[][7] = { {P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
- P_SPORT0_DRPRI, P_SPORT0_RSCLK, LOCAL_SPORT0_TFS, 0},
- {P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS, P_SPORT1_DRPRI,
- P_SPORT1_RSCLK, P_SPORT1_TFS, 0} };
-
static int bf5xx_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
unsigned int fmt)
{
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(cpu_dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
int ret = 0;
/* interface format:support I2S,slave mode */
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
- bf5xx_i2s.tcr1 |= TFSR | TCKFE;
- bf5xx_i2s.rcr1 |= RFSR | RCKFE;
- bf5xx_i2s.tcr2 |= TSFSE;
- bf5xx_i2s.rcr2 |= RSFSE;
+ bf5xx_i2s->tcr1 |= TFSR | TCKFE;
+ bf5xx_i2s->rcr1 |= RFSR | RCKFE;
+ bf5xx_i2s->tcr2 |= TSFSE;
+ bf5xx_i2s->rcr2 |= RSFSE;
break;
case SND_SOC_DAIFMT_DSP_A:
- bf5xx_i2s.tcr1 |= TFSR;
- bf5xx_i2s.rcr1 |= RFSR;
+ bf5xx_i2s->tcr1 |= TFSR;
+ bf5xx_i2s->rcr1 |= RFSR;
break;
case SND_SOC_DAIFMT_LEFT_J:
ret = -EINVAL;
break;
default:
- printk(KERN_ERR "%s: Unknown DAI format type\n", __func__);
+ dev_err(cpu_dai->dev, "%s: Unknown DAI format type\n",
+ __func__);
ret = -EINVAL;
break;
}
@@ -123,7 +97,8 @@ static int bf5xx_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
ret = -EINVAL;
break;
default:
- printk(KERN_ERR "%s: Unknown DAI master type\n", __func__);
+ dev_err(cpu_dai->dev, "%s: Unknown DAI master type\n",
+ __func__);
ret = -EINVAL;
break;
}
@@ -135,29 +110,36 @@ static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
int ret = 0;
- bf5xx_i2s.tcr2 &= ~0x1f;
- bf5xx_i2s.rcr2 &= ~0x1f;
+ bf5xx_i2s->tcr2 &= ~0x1f;
+ bf5xx_i2s->rcr2 &= ~0x1f;
switch (params_format(params)) {
+ case SNDRV_PCM_FORMAT_S8:
+ bf5xx_i2s->tcr2 |= 7;
+ bf5xx_i2s->rcr2 |= 7;
+ sport_handle->wdsize = 1;
+ break;
case SNDRV_PCM_FORMAT_S16_LE:
- bf5xx_i2s.tcr2 |= 15;
- bf5xx_i2s.rcr2 |= 15;
+ bf5xx_i2s->tcr2 |= 15;
+ bf5xx_i2s->rcr2 |= 15;
sport_handle->wdsize = 2;
break;
case SNDRV_PCM_FORMAT_S24_LE:
- bf5xx_i2s.tcr2 |= 23;
- bf5xx_i2s.rcr2 |= 23;
+ bf5xx_i2s->tcr2 |= 23;
+ bf5xx_i2s->rcr2 |= 23;
sport_handle->wdsize = 3;
break;
case SNDRV_PCM_FORMAT_S32_LE:
- bf5xx_i2s.tcr2 |= 31;
- bf5xx_i2s.rcr2 |= 31;
+ bf5xx_i2s->tcr2 |= 31;
+ bf5xx_i2s->rcr2 |= 31;
sport_handle->wdsize = 4;
break;
}
- if (!bf5xx_i2s.configured) {
+ if (!bf5xx_i2s->configured) {
/*
* TX and RX are not independent,they are enabled at the
* same time, even if only one side is running. So, we
@@ -166,18 +148,18 @@ static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream,
*
* CPU DAI:slave mode.
*/
- bf5xx_i2s.configured = 1;
- ret = sport_config_rx(sport_handle, bf5xx_i2s.rcr1,
- bf5xx_i2s.rcr2, 0, 0);
+ bf5xx_i2s->configured = 1;
+ ret = sport_config_rx(sport_handle, bf5xx_i2s->rcr1,
+ bf5xx_i2s->rcr2, 0, 0);
if (ret) {
- pr_err("SPORT is busy!\n");
+ dev_err(dai->dev, "SPORT is busy!\n");
return -EBUSY;
}
- ret = sport_config_tx(sport_handle, bf5xx_i2s.tcr1,
- bf5xx_i2s.tcr2, 0, 0);
+ ret = sport_config_tx(sport_handle, bf5xx_i2s->tcr1,
+ bf5xx_i2s->tcr2, 0, 0);
if (ret) {
- pr_err("SPORT is busy!\n");
+ dev_err(dai->dev, "SPORT is busy!\n");
return -EBUSY;
}
}
@@ -188,43 +170,79 @@ static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream,
static void bf5xx_i2s_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
- pr_debug("%s enter\n", __func__);
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
+
+ dev_dbg(dai->dev, "%s enter\n", __func__);
/* No active stream, SPORT is allowed to be configured again. */
if (!dai->active)
- bf5xx_i2s.configured = 0;
+ bf5xx_i2s->configured = 0;
}
-static int bf5xx_i2s_probe(struct snd_soc_dai *dai)
+static int bf5xx_i2s_set_channel_map(struct snd_soc_dai *dai,
+ unsigned int tx_num, unsigned int *tx_slot,
+ unsigned int rx_num, unsigned int *rx_slot)
{
- pr_debug("%s enter\n", __func__);
- if (peripheral_request_list(&sport_req[sport_num][0], "soc-audio")) {
- pr_err("Requesting Peripherals failed\n");
- return -EFAULT;
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
+ unsigned int tx_mapped = 0, rx_mapped = 0;
+ unsigned int slot;
+ int i;
+
+ if ((tx_num > BFIN_TDM_DAI_MAX_SLOTS) ||
+ (rx_num > BFIN_TDM_DAI_MAX_SLOTS))
+ return -EINVAL;
+
+ for (i = 0; i < tx_num; i++) {
+ slot = tx_slot[i];
+ if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
+ (!(tx_mapped & (1 << slot)))) {
+ bf5xx_i2s->tx_dma_data.map[i] = slot;
+ tx_mapped |= 1 << slot;
+ } else
+ return -EINVAL;
}
-
- /* request DMA for SPORT */
- sport_handle = sport_init(&sport_params[sport_num], 4, \
- 2 * sizeof(u32), NULL);
- if (!sport_handle) {
- peripheral_free_list(&sport_req[sport_num][0]);
- return -ENODEV;
+ for (i = 0; i < rx_num; i++) {
+ slot = rx_slot[i];
+ if ((slot < BFIN_TDM_DAI_MAX_SLOTS) &&
+ (!(rx_mapped & (1 << slot)))) {
+ bf5xx_i2s->rx_dma_data.map[i] = slot;
+ rx_mapped |= 1 << slot;
+ } else
+ return -EINVAL;
}
return 0;
}
-static int bf5xx_i2s_remove(struct snd_soc_dai *dai)
+static int bf5xx_i2s_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
+ unsigned int rx_mask, int slots, int width)
{
- pr_debug("%s enter\n", __func__);
- peripheral_free_list(&sport_req[sport_num][0]);
- return 0;
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
+
+ if (slots % 8 != 0 || slots > 8)
+ return -EINVAL;
+
+ if (width != 32)
+ return -EINVAL;
+
+ bf5xx_i2s->slots = slots;
+ bf5xx_i2s->tx_mask = tx_mask;
+ bf5xx_i2s->rx_mask = rx_mask;
+
+ bf5xx_i2s->tx_dma_data.tdm_mode = slots != 0;
+ bf5xx_i2s->rx_dma_data.tdm_mode = slots != 0;
+
+ return sport_set_multichannel(sport_handle, slots, tx_mask, rx_mask, 0);
}
#ifdef CONFIG_PM
static int bf5xx_i2s_suspend(struct snd_soc_dai *dai)
{
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
- pr_debug("%s : sport %d\n", __func__, dai->id);
+ dev_dbg(dai->dev, "%s : sport %d\n", __func__, dai->id);
if (dai->capture_active)
sport_rx_stop(sport_handle);
@@ -235,25 +253,28 @@ static int bf5xx_i2s_suspend(struct snd_soc_dai *dai)
static int bf5xx_i2s_resume(struct snd_soc_dai *dai)
{
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
int ret;
- pr_debug("%s : sport %d\n", __func__, dai->id);
+ dev_dbg(dai->dev, "%s : sport %d\n", __func__, dai->id);
- ret = sport_config_rx(sport_handle, bf5xx_i2s.rcr1,
- bf5xx_i2s.rcr2, 0, 0);
+ ret = sport_config_rx(sport_handle, bf5xx_i2s->rcr1,
+ bf5xx_i2s->rcr2, 0, 0);
if (ret) {
- pr_err("SPORT is busy!\n");
+ dev_err(dai->dev, "SPORT is busy!\n");
return -EBUSY;
}
- ret = sport_config_tx(sport_handle, bf5xx_i2s.tcr1,
- bf5xx_i2s.tcr2, 0, 0);
+ ret = sport_config_tx(sport_handle, bf5xx_i2s->tcr1,
+ bf5xx_i2s->tcr2, 0, 0);
if (ret) {
- pr_err("SPORT is busy!\n");
+ dev_err(dai->dev, "SPORT is busy!\n");
return -EBUSY;
}
- return 0;
+ return sport_set_multichannel(sport_handle, bf5xx_i2s->slots,
+ bf5xx_i2s->tx_mask, bf5xx_i2s->rx_mask, 0);
}
#else
@@ -261,71 +282,108 @@ static int bf5xx_i2s_resume(struct snd_soc_dai *dai)
#define bf5xx_i2s_resume NULL
#endif
+static int bf5xx_i2s_dai_probe(struct snd_soc_dai *dai)
+{
+ struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai);
+ struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data;
+ unsigned int i;
+
+ for (i = 0; i < BFIN_TDM_DAI_MAX_SLOTS; i++) {
+ bf5xx_i2s->tx_dma_data.map[i] = i;
+ bf5xx_i2s->rx_dma_data.map[i] = i;
+ }
+
+ dai->playback_dma_data = &bf5xx_i2s->tx_dma_data;
+ dai->capture_dma_data = &bf5xx_i2s->rx_dma_data;
+
+ return 0;
+}
+
#define BF5XX_I2S_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \
SNDRV_PCM_RATE_96000)
-#define BF5XX_I2S_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\
- SNDRV_PCM_FMTBIT_S32_LE)
-
-static struct snd_soc_dai_ops bf5xx_i2s_dai_ops = {
- .shutdown = bf5xx_i2s_shutdown,
- .hw_params = bf5xx_i2s_hw_params,
- .set_fmt = bf5xx_i2s_set_dai_fmt,
+#define BF5XX_I2S_FORMATS \
+ (SNDRV_PCM_FMTBIT_S8 | \
+ SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S24_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE)
+
+static const struct snd_soc_dai_ops bf5xx_i2s_dai_ops = {
+ .shutdown = bf5xx_i2s_shutdown,
+ .hw_params = bf5xx_i2s_hw_params,
+ .set_fmt = bf5xx_i2s_set_dai_fmt,
+ .set_tdm_slot = bf5xx_i2s_set_tdm_slot,
+ .set_channel_map = bf5xx_i2s_set_channel_map,
};
static struct snd_soc_dai_driver bf5xx_i2s_dai = {
- .probe = bf5xx_i2s_probe,
- .remove = bf5xx_i2s_remove,
+ .probe = bf5xx_i2s_dai_probe,
.suspend = bf5xx_i2s_suspend,
.resume = bf5xx_i2s_resume,
.playback = {
- .channels_min = 1,
- .channels_max = 2,
+ .channels_min = 2,
+ .channels_max = 8,
.rates = BF5XX_I2S_RATES,
.formats = BF5XX_I2S_FORMATS,},
.capture = {
- .channels_min = 1,
- .channels_max = 2,
+ .channels_min = 2,
+ .channels_max = 8,
.rates = BF5XX_I2S_RATES,
.formats = BF5XX_I2S_FORMATS,},
.ops = &bf5xx_i2s_dai_ops,
};
-static int bfin_i2s_drv_probe(struct platform_device *pdev)
+static const struct snd_soc_component_driver bf5xx_i2s_component = {
+ .name = "bf5xx-i2s",
+};
+
+static int bf5xx_i2s_probe(struct platform_device *pdev)
{
- return snd_soc_register_dai(&pdev->dev, &bf5xx_i2s_dai);
+ struct sport_device *sport_handle;
+ int ret;
+
+ /* configure SPORT for I2S */
+ sport_handle = sport_init(pdev, 4, 8 * sizeof(u32),
+ sizeof(struct bf5xx_i2s_port));
+ if (!sport_handle)
+ return -ENODEV;
+
+ /* register with the ASoC layers */
+ ret = snd_soc_register_component(&pdev->dev, &bf5xx_i2s_component,
+ &bf5xx_i2s_dai, 1);
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to register DAI: %d\n", ret);
+ sport_done(sport_handle);
+ return ret;
+ }
+
+ return 0;
}
-static int __devexit bfin_i2s_drv_remove(struct platform_device *pdev)
+static int bf5xx_i2s_remove(struct platform_device *pdev)
{
- snd_soc_unregister_dai(&pdev->dev);
+ struct sport_device *sport_handle = platform_get_drvdata(pdev);
+
+ dev_dbg(&pdev->dev, "%s enter\n", __func__);
+
+ snd_soc_unregister_component(&pdev->dev);
+ sport_done(sport_handle);
+
return 0;
}
static struct platform_driver bfin_i2s_driver = {
- .probe = bfin_i2s_drv_probe,
- .remove = __devexit_p(bfin_i2s_drv_remove),
-
+ .probe = bf5xx_i2s_probe,
+ .remove = bf5xx_i2s_remove,
.driver = {
- .name = "bf5xx-i2s",
+ .name = "bfin-i2s",
.owner = THIS_MODULE,
},
};
-static int __init bfin_i2s_init(void)
-{
- return platform_driver_register(&bfin_i2s_driver);
-}
-
-static void __exit bfin_i2s_exit(void)
-{
- platform_driver_unregister(&bfin_i2s_driver);
-}
-
-module_init(bfin_i2s_init);
-module_exit(bfin_i2s_exit);
+module_platform_driver(bfin_i2s_driver);
/* Module information */
MODULE_AUTHOR("Cliff Cai");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 03:47:48 +0000