diff options
Diffstat (limited to 'sound/soc/blackfin/bf5xx-i2s.c')
-rw-r--r-- | sound/soc/blackfin/bf5xx-i2s.c | 172 |
1 files changed, 73 insertions, 99 deletions
diff --git a/sound/soc/blackfin/bf5xx-i2s.c b/sound/soc/blackfin/bf5xx-i2s.c index d453b1e..00cc3e0 100644 --- a/sound/soc/blackfin/bf5xx-i2s.c +++ b/sound/soc/blackfin/bf5xx-i2s.c @@ -51,59 +51,24 @@ struct bf5xx_i2s_port { int configured; }; -static struct bf5xx_i2s_port bf5xx_i2s; -static int sport_num = CONFIG_SND_BF5XX_SPORT_NUM; - -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, - } -}; - -/* - * 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; @@ -135,29 +100,35 @@ 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; 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 @@ -166,16 +137,16 @@ 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"); 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"); return -EBUSY; @@ -188,41 +159,19 @@ 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) { + struct sport_device *sport_handle = snd_soc_dai_get_drvdata(dai); + struct bf5xx_i2s_port *bf5xx_i2s = sport_handle->private_data; + pr_debug("%s enter\n", __func__); /* No active stream, SPORT is allowed to be configured again. */ if (!dai->active) - bf5xx_i2s.configured = 0; -} - -static int bf5xx_i2s_probe(struct snd_soc_dai *dai) -{ - 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; - } - - /* 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; - } - - return 0; -} - -static int bf5xx_i2s_remove(struct snd_soc_dai *dai) -{ - pr_debug("%s enter\n", __func__); - peripheral_free_list(&sport_req[sport_num][0]); - return 0; + bf5xx_i2s->configured = 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); @@ -235,19 +184,21 @@ 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); - 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"); 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"); return -EBUSY; @@ -266,8 +217,11 @@ static int bf5xx_i2s_resume(struct snd_soc_dai *dai) 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) +#define BF5XX_I2S_FORMATS \ + (SNDRV_PCM_FMTBIT_S8 | \ + 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, @@ -276,8 +230,6 @@ static struct snd_soc_dai_ops bf5xx_i2s_dai_ops = { }; static struct snd_soc_dai_driver bf5xx_i2s_dai = { - .probe = bf5xx_i2s_probe, - .remove = bf5xx_i2s_remove, .suspend = bf5xx_i2s_suspend, .resume = bf5xx_i2s_resume, .playback = { @@ -293,23 +245,45 @@ static struct snd_soc_dai_driver bf5xx_i2s_dai = { .ops = &bf5xx_i2s_dai_ops, }; -static int bfin_i2s_drv_probe(struct platform_device *pdev) +static int __devinit 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, 2 * sizeof(u32), + sizeof(struct bf5xx_i2s_port)); + if (!sport_handle) + return -ENODEV; + + /* register with the ASoC layers */ + ret = snd_soc_register_dai(&pdev->dev, &bf5xx_i2s_dai); + if (ret) { + pr_err("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 __devexit bf5xx_i2s_remove(struct platform_device *pdev) { + struct sport_device *sport_handle = platform_get_drvdata(pdev); + + pr_debug("%s enter\n", __func__); + snd_soc_unregister_dai(&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 = __devexit_p(bf5xx_i2s_remove), .driver = { - .name = "bf5xx-i2s", + .name = "bfin-i2s", .owner = THIS_MODULE, }, }; |