ASoC: Blackfin: push down SPORT settings from global variables

Now that we have multi-component support, take the time to unify the
SPORT implementations a bit and make the setup dynamic.  This kills
off the global sport_handle which was shared across all the Blackfin
machine drivers.  The pin management aspect is off loaded to platform
resources, and now multiple SPORTs can be instantiated simultaneously.

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Scott Jiang <scott.jiang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 63 insertions, 96 deletions

diff --git a/sound/soc/blackfin/bf5xx-i2s.c b/sound/soc/blackfin/bf5xx-i2s.c
index dacd86c..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;
@@ -135,33 +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
@@ -170,16 +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;
@@ -192,41 +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);
 
@@ -239,19 +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;
@@ -283,8 +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 = {
@@ -300,21 +245,43 @@ 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 = "bfin-i2s",
 		.owner = THIS_MODULE,