* published by the Free Software Foundation.
*/
+#include <linux/module.h>
#include <linux/clk.h>
#include <linux/gpio.h>
#include <linux/io.h>
+#include <linux/slab.h>
#include <sound/soc.h>
-#include <mach/gpio-bank-d.h>
-#include <mach/gpio-bank-e.h>
-#include <plat/gpio-cfg.h>
+#include <plat/audio.h>
#include <mach/map.h>
#include <mach/dma.h>
static struct s3c_dma_params s3c64xx_i2s_pcm_stereo_in[MAX_I2SV3];
static struct s3c_i2sv2_info s3c64xx_i2s[MAX_I2SV3];
-struct snd_soc_dai s3c64xx_i2s_dai[MAX_I2SV3];
-EXPORT_SYMBOL_GPL(s3c64xx_i2s_dai);
-
-static inline struct s3c_i2sv2_info *to_info(struct snd_soc_dai *cpu_dai)
+struct clk *s3c64xx_i2s_get_clock(struct snd_soc_dai *dai)
{
- return cpu_dai->private_data;
+ struct s3c_i2sv2_info *i2s = snd_soc_dai_get_drvdata(dai);
+ u32 iismod = readl(i2s->regs + S3C2412_IISMOD);
+
+ if (iismod & S3C2412_IISMOD_IMS_SYSMUX)
+ return i2s->iis_cclk;
+ else
+ return i2s->iis_pclk;
}
+EXPORT_SYMBOL_GPL(s3c64xx_i2s_get_clock);
-static int s3c64xx_i2s_probe(struct platform_device *pdev,
- struct snd_soc_dai *dai)
+static int s3c64xx_i2s_probe(struct snd_soc_dai *dai)
{
- /* configure GPIO for i2s port */
- switch (dai->id) {
- case 0:
- s3c_gpio_cfgpin(S3C64XX_GPD(0), S3C64XX_GPD0_I2S0_CLK);
- s3c_gpio_cfgpin(S3C64XX_GPD(1), S3C64XX_GPD1_I2S0_CDCLK);
- s3c_gpio_cfgpin(S3C64XX_GPD(2), S3C64XX_GPD2_I2S0_LRCLK);
- s3c_gpio_cfgpin(S3C64XX_GPD(3), S3C64XX_GPD3_I2S0_DI);
- s3c_gpio_cfgpin(S3C64XX_GPD(4), S3C64XX_GPD4_I2S0_D0);
- break;
- case 1:
- s3c_gpio_cfgpin(S3C64XX_GPE(0), S3C64XX_GPE0_I2S1_CLK);
- s3c_gpio_cfgpin(S3C64XX_GPE(1), S3C64XX_GPE1_I2S1_CDCLK);
- s3c_gpio_cfgpin(S3C64XX_GPE(2), S3C64XX_GPE2_I2S1_LRCLK);
- s3c_gpio_cfgpin(S3C64XX_GPE(3), S3C64XX_GPE3_I2S1_DI);
- s3c_gpio_cfgpin(S3C64XX_GPE(4), S3C64XX_GPE4_I2S1_D0);
+ struct s3c_i2sv2_info *i2s;
+ int ret;
+
+ if (dai->id >= MAX_I2SV3) {
+ dev_err(dai->dev, "id %d out of range\n", dai->id);
+ return -EINVAL;
+ }
+
+ i2s = &s3c64xx_i2s[dai->id];
+ snd_soc_dai_set_drvdata(dai, i2s);
+
+ i2s->iis_cclk = clk_get(dai->dev, "audio-bus");
+ if (IS_ERR(i2s->iis_cclk)) {
+ dev_err(dai->dev, "failed to get audio-bus\n");
+ ret = PTR_ERR(i2s->iis_cclk);
+ goto err;
}
+ clk_enable(i2s->iis_cclk);
+
+ ret = s3c_i2sv2_probe(dai, i2s, i2s->base);
+ if (ret)
+ goto err_clk;
+
return 0;
+
+err_clk:
+ clk_disable(i2s->iis_cclk);
+ clk_put(i2s->iis_cclk);
+err:
+ kfree(i2s);
+ return ret;
}
+static int s3c64xx_i2s_remove(struct snd_soc_dai *dai)
+{
+ struct s3c_i2sv2_info *i2s = snd_soc_dai_get_drvdata(dai);
+
+ clk_disable(i2s->iis_cclk);
+ clk_put(i2s->iis_cclk);
+ kfree(i2s);
+ return 0;
+}
static struct snd_soc_dai_ops s3c64xx_i2s_dai_ops;
+static struct snd_soc_dai_driver s3c64xx_i2s_dai[MAX_I2SV3] = {
+{
+ .name = "s3c64xx-i2s-0",
+ .probe = s3c64xx_i2s_probe,
+ .remove = s3c64xx_i2s_remove,
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = S3C64XX_I2S_RATES,
+ .formats = S3C64XX_I2S_FMTS,},
+ .capture = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = S3C64XX_I2S_RATES,
+ .formats = S3C64XX_I2S_FMTS,},
+ .ops = &s3c64xx_i2s_dai_ops,
+ .symmetric_rates = 1,
+}, {
+ .name = "s3c64xx-i2s-1",
+ .probe = s3c64xx_i2s_probe,
+ .remove = s3c64xx_i2s_remove,
+ .playback = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = S3C64XX_I2S_RATES,
+ .formats = S3C64XX_I2S_FMTS,},
+ .capture = {
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = S3C64XX_I2S_RATES,
+ .formats = S3C64XX_I2S_FMTS,},
+ .ops = &s3c64xx_i2s_dai_ops,
+ .symmetric_rates = 1,
+},};
+
static __devinit int s3c64xx_iis_dev_probe(struct platform_device *pdev)
{
+ struct s3c_audio_pdata *i2s_pdata;
struct s3c_i2sv2_info *i2s;
- struct snd_soc_dai *dai;
- int ret;
+ struct resource *res;
+ int i, ret;
if (pdev->id >= MAX_I2SV3) {
dev_err(&pdev->dev, "id %d out of range\n", pdev->id);
}
i2s = &s3c64xx_i2s[pdev->id];
- dai = &s3c64xx_i2s_dai[pdev->id];
- dai->dev = &pdev->dev;
- dai->name = "s3c64xx-i2s";
- dai->id = pdev->id;
- dai->symmetric_rates = 1;
- dai->playback.channels_min = 2;
- dai->playback.channels_max = 2;
- dai->playback.rates = S3C64XX_I2S_RATES;
- dai->playback.formats = S3C64XX_I2S_FMTS;
- dai->capture.channels_min = 2;
- dai->capture.channels_max = 2;
- dai->capture.rates = S3C64XX_I2S_RATES;
- dai->capture.formats = S3C64XX_I2S_FMTS;
- dai->probe = s3c64xx_i2s_probe;
- dai->ops = &s3c64xx_i2s_dai_ops;
-
- i2s->feature |= S3C_FEATURE_CDCLKCON;
i2s->dma_capture = &s3c64xx_i2s_pcm_stereo_in[pdev->id];
i2s->dma_playback = &s3c64xx_i2s_pcm_stereo_out[pdev->id];
- if (pdev->id == 0) {
- i2s->dma_capture->channel = DMACH_I2S0_IN;
- i2s->dma_capture->dma_addr = S3C64XX_PA_IIS0 + S3C2412_IISRXD;
- i2s->dma_playback->channel = DMACH_I2S0_OUT;
- i2s->dma_playback->dma_addr = S3C64XX_PA_IIS0 + S3C2412_IISTXD;
- } else {
- i2s->dma_capture->channel = DMACH_I2S1_IN;
- i2s->dma_capture->dma_addr = S3C64XX_PA_IIS1 + S3C2412_IISRXD;
- i2s->dma_playback->channel = DMACH_I2S1_OUT;
- i2s->dma_playback->dma_addr = S3C64XX_PA_IIS1 + S3C2412_IISTXD;
+ res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "Unable to get I2S-TX dma resource\n");
+ return -ENXIO;
+ }
+ i2s->dma_playback->channel = res->start;
+
+ res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+ if (!res) {
+ dev_err(&pdev->dev, "Unable to get I2S-RX dma resource\n");
+ return -ENXIO;
+ }
+ i2s->dma_capture->channel = res->start;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(&pdev->dev, "Unable to get I2S SFR address\n");
+ return -ENXIO;
}
+ if (!request_mem_region(res->start, resource_size(res),
+ "s3c64xx-i2s")) {
+ dev_err(&pdev->dev, "Unable to request SFR region\n");
+ return -EBUSY;
+ }
+ i2s->base = res->start;
+
+ i2s_pdata = pdev->dev.platform_data;
+ if (i2s_pdata && i2s_pdata->cfg_gpio && i2s_pdata->cfg_gpio(pdev)) {
+ dev_err(&pdev->dev, "Unable to configure gpio\n");
+ return -EINVAL;
+ }
+ i2s->dma_capture->dma_addr = res->start + S3C2412_IISRXD;
+ i2s->dma_playback->dma_addr = res->start + S3C2412_IISTXD;
+
i2s->dma_capture->client = &s3c64xx_dma_client_in;
i2s->dma_capture->dma_size = 4;
i2s->dma_playback->client = &s3c64xx_dma_client_out;
i2s->dma_playback->dma_size = 4;
- i2s->iis_cclk = clk_get(&pdev->dev, "audio-bus");
- if (IS_ERR(i2s->iis_cclk)) {
- dev_err(&pdev->dev, "failed to get audio-bus\n");
- ret = PTR_ERR(i2s->iis_cclk);
- goto err;
+ for (i = 0; i < ARRAY_SIZE(s3c64xx_i2s_dai); i++) {
+ ret = s3c_i2sv2_register_dai(&pdev->dev, i,
+ &s3c64xx_i2s_dai[i]);
+ if (ret != 0)
+ return ret;
}
- clk_enable(i2s->iis_cclk);
-
- ret = s3c_i2sv2_probe(pdev, dai, i2s, 0);
- if (ret)
- goto err_clk;
-
- ret = s3c_i2sv2_register_dai(dai);
- if (ret != 0)
- goto err_i2sv2;
-
return 0;
-
-err_i2sv2:
- /* Not implemented for I2Sv2 core yet */
-err_clk:
- clk_put(i2s->iis_cclk);
-err:
- return ret;
}
static __devexit int s3c64xx_iis_dev_remove(struct platform_device *pdev)
{
- dev_err(&pdev->dev, "Device removal not yet supported\n");
+ snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(s3c64xx_i2s_dai));
return 0;
}
projects / mcf548x / linux.git / blobdiff