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Diffstat (limited to 'sound/soc/samsung/ac97.c')
-rw-r--r--sound/soc/samsung/ac97.c174
1 files changed, 70 insertions, 104 deletions
diff --git a/sound/soc/samsung/ac97.c b/sound/soc/samsung/ac97.c
index f97110e72e8..68d9303047e 100644
--- a/sound/soc/samsung/ac97.c
+++ b/sound/soc/samsung/ac97.c
@@ -4,7 +4,7 @@
* Evolved from s3c2443-ac97.c
*
* Copyright (c) 2010 Samsung Electronics Co. Ltd
- * Author: Jaswinder Singh <jassi.brar@samsung.com>
+ * Author: Jaswinder Singh <jassisinghbrar@gmail.com>
* Credits: Graeme Gregory, Sean Choi
*
* This program is free software; you can redistribute it and/or modify
@@ -15,12 +15,13 @@
#include <linux/io.h>
#include <linux/delay.h>
#include <linux/clk.h>
+#include <linux/module.h>
#include <sound/soc.h>
#include <mach/dma.h>
-#include <plat/regs-ac97.h>
-#include <plat/audio.h>
+#include "regs-ac97.h"
+#include <linux/platform_data/asoc-s3c.h>
#include "dma.h"
@@ -38,15 +39,15 @@ struct s3c_ac97_info {
};
static struct s3c_ac97_info s3c_ac97;
-static struct s3c2410_dma_client s3c_dma_client_out = {
+static struct s3c_dma_client s3c_dma_client_out = {
.name = "AC97 PCMOut"
};
-static struct s3c2410_dma_client s3c_dma_client_in = {
+static struct s3c_dma_client s3c_dma_client_in = {
.name = "AC97 PCMIn"
};
-static struct s3c2410_dma_client s3c_dma_client_micin = {
+static struct s3c_dma_client s3c_dma_client_micin = {
.name = "AC97 MicIn"
};
@@ -73,7 +74,7 @@ static void s3c_ac97_activate(struct snd_ac97 *ac97)
if (stat == S3C_AC97_GLBSTAT_MAINSTATE_ACTIVE)
return; /* Return if already active */
- INIT_COMPLETION(s3c_ac97.done);
+ reinit_completion(&s3c_ac97.done);
ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
ac_glbctrl = S3C_AC97_GLBCTRL_ACLINKON;
@@ -102,7 +103,7 @@ static unsigned short s3c_ac97_read(struct snd_ac97 *ac97,
s3c_ac97_activate(ac97);
- INIT_COMPLETION(s3c_ac97.done);
+ reinit_completion(&s3c_ac97.done);
ac_codec_cmd = readl(s3c_ac97.regs + S3C_AC97_CODEC_CMD);
ac_codec_cmd = S3C_AC97_CODEC_CMD_READ | AC_CMD_ADDR(reg);
@@ -139,7 +140,7 @@ static void s3c_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
s3c_ac97_activate(ac97);
- INIT_COMPLETION(s3c_ac97.done);
+ reinit_completion(&s3c_ac97.done);
ac_codec_cmd = readl(s3c_ac97.regs + S3C_AC97_CODEC_CMD);
ac_codec_cmd = AC_CMD_ADDR(reg) | AC_CMD_DATA(val);
@@ -213,31 +214,12 @@ static irqreturn_t s3c_ac97_irq(int irq, void *dev_id)
return IRQ_HANDLED;
}
-struct snd_ac97_bus_ops soc_ac97_ops = {
+static struct snd_ac97_bus_ops s3c_ac97_ops = {
.read = s3c_ac97_read,
.write = s3c_ac97_write,
.warm_reset = s3c_ac97_warm_reset,
.reset = s3c_ac97_cold_reset,
};
-EXPORT_SYMBOL_GPL(soc_ac97_ops);
-
-static int s3c_ac97_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
- struct s3c_dma_params *dma_data;
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- dma_data = &s3c_ac97_pcm_out;
- else
- dma_data = &s3c_ac97_pcm_in;
-
- snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
-
- return 0;
-}
static int s3c_ac97_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
@@ -271,22 +253,10 @@ static int s3c_ac97_trigger(struct snd_pcm_substream *substream, int cmd,
writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
- s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
+ if (!dma_data->ops)
+ dma_data->ops = samsung_dma_get_ops();
- return 0;
-}
-
-static int s3c_ac97_hw_mic_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- return -ENODEV;
- else
- snd_soc_dai_set_dma_data(cpu_dai, substream, &s3c_ac97_mic_in);
+ dma_data->ops->started(dma_data->channel);
return 0;
}
@@ -317,21 +287,36 @@ static int s3c_ac97_mic_trigger(struct snd_pcm_substream *substream,
writel(ac_glbctrl, s3c_ac97.regs + S3C_AC97_GLBCTRL);
- s3c2410_dma_ctrl(dma_data->channel, S3C2410_DMAOP_STARTED);
+ if (!dma_data->ops)
+ dma_data->ops = samsung_dma_get_ops();
+
+ dma_data->ops->started(dma_data->channel);
return 0;
}
-static struct snd_soc_dai_ops s3c_ac97_dai_ops = {
- .hw_params = s3c_ac97_hw_params,
+static const struct snd_soc_dai_ops s3c_ac97_dai_ops = {
.trigger = s3c_ac97_trigger,
};
-static struct snd_soc_dai_ops s3c_ac97_mic_dai_ops = {
- .hw_params = s3c_ac97_hw_mic_params,
+static const struct snd_soc_dai_ops s3c_ac97_mic_dai_ops = {
.trigger = s3c_ac97_mic_trigger,
};
+static int s3c_ac97_dai_probe(struct snd_soc_dai *dai)
+{
+ samsung_asoc_init_dma_data(dai, &s3c_ac97_pcm_out, &s3c_ac97_pcm_in);
+
+ return 0;
+}
+
+static int s3c_ac97_mic_dai_probe(struct snd_soc_dai *dai)
+{
+ samsung_asoc_init_dma_data(dai, NULL, &s3c_ac97_mic_in);
+
+ return 0;
+}
+
static struct snd_soc_dai_driver s3c_ac97_dai[] = {
[S3C_AC97_DAI_PCM] = {
.name = "samsung-ac97",
@@ -348,6 +333,7 @@ static struct snd_soc_dai_driver s3c_ac97_dai[] = {
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
+ .probe = s3c_ac97_dai_probe,
.ops = &s3c_ac97_dai_ops,
},
[S3C_AC97_DAI_MIC] = {
@@ -359,11 +345,16 @@ static struct snd_soc_dai_driver s3c_ac97_dai[] = {
.channels_max = 1,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE,},
+ .probe = s3c_ac97_mic_dai_probe,
.ops = &s3c_ac97_mic_dai_ops,
},
};
-static __devinit int s3c_ac97_probe(struct platform_device *pdev)
+static const struct snd_soc_component_driver s3c_ac97_component = {
+ .name = "s3c-ac97",
+};
+
+static int s3c_ac97_probe(struct platform_device *pdev)
{
struct resource *mem_res, *dmatx_res, *dmarx_res, *dmamic_res, *irq_res;
struct s3c_audio_pdata *ac97_pdata;
@@ -394,23 +385,16 @@ static __devinit int s3c_ac97_probe(struct platform_device *pdev)
return -ENXIO;
}
- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!mem_res) {
- dev_err(&pdev->dev, "Unable to get register resource\n");
- return -ENXIO;
- }
-
irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!irq_res) {
dev_err(&pdev->dev, "AC97 IRQ not provided!\n");
return -ENXIO;
}
- if (!request_mem_region(mem_res->start,
- resource_size(mem_res), "ac97")) {
- dev_err(&pdev->dev, "Unable to request register region\n");
- return -EBUSY;
- }
+ mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ s3c_ac97.regs = devm_ioremap_resource(&pdev->dev, mem_res);
+ if (IS_ERR(s3c_ac97.regs))
+ return PTR_ERR(s3c_ac97.regs);
s3c_ac97_pcm_out.channel = dmatx_res->start;
s3c_ac97_pcm_out.dma_addr = mem_res->start + S3C_AC97_PCM_DATA;
@@ -422,20 +406,13 @@ static __devinit int s3c_ac97_probe(struct platform_device *pdev)
init_completion(&s3c_ac97.done);
mutex_init(&s3c_ac97.lock);
- s3c_ac97.regs = ioremap(mem_res->start, resource_size(mem_res));
- if (s3c_ac97.regs == NULL) {
- dev_err(&pdev->dev, "Unable to ioremap register region\n");
- ret = -ENXIO;
- goto err1;
- }
-
- s3c_ac97.ac97_clk = clk_get(&pdev->dev, "ac97");
+ s3c_ac97.ac97_clk = devm_clk_get(&pdev->dev, "ac97");
if (IS_ERR(s3c_ac97.ac97_clk)) {
dev_err(&pdev->dev, "ac97 failed to get ac97_clock\n");
ret = -ENODEV;
goto err2;
}
- clk_enable(s3c_ac97.ac97_clk);
+ clk_prepare_enable(s3c_ac97.ac97_clk);
if (ac97_pdata->cfg_gpio(pdev)) {
dev_err(&pdev->dev, "Unable to configure gpio\n");
@@ -444,51 +421,50 @@ static __devinit int s3c_ac97_probe(struct platform_device *pdev)
}
ret = request_irq(irq_res->start, s3c_ac97_irq,
- IRQF_DISABLED, "AC97", NULL);
+ 0, "AC97", NULL);
if (ret < 0) {
dev_err(&pdev->dev, "ac97: interrupt request failed.\n");
goto err4;
}
- ret = snd_soc_register_dais(&pdev->dev, s3c_ac97_dai,
- ARRAY_SIZE(s3c_ac97_dai));
+ ret = snd_soc_set_ac97_ops(&s3c_ac97_ops);
+ if (ret != 0) {
+ dev_err(&pdev->dev, "Failed to set AC'97 ops: %d\n", ret);
+ goto err4;
+ }
+
+ ret = devm_snd_soc_register_component(&pdev->dev, &s3c_ac97_component,
+ s3c_ac97_dai, ARRAY_SIZE(s3c_ac97_dai));
if (ret)
goto err5;
- return 0;
+ ret = samsung_asoc_dma_platform_register(&pdev->dev);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to get register DMA: %d\n", ret);
+ goto err5;
+ }
+ return 0;
err5:
free_irq(irq_res->start, NULL);
err4:
err3:
- clk_disable(s3c_ac97.ac97_clk);
- clk_put(s3c_ac97.ac97_clk);
+ clk_disable_unprepare(s3c_ac97.ac97_clk);
err2:
- iounmap(s3c_ac97.regs);
-err1:
- release_mem_region(mem_res->start, resource_size(mem_res));
-
+ snd_soc_set_ac97_ops(NULL);
return ret;
}
-static __devexit int s3c_ac97_remove(struct platform_device *pdev)
+static int s3c_ac97_remove(struct platform_device *pdev)
{
- struct resource *mem_res, *irq_res;
-
- snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(s3c_ac97_dai));
+ struct resource *irq_res;
irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (irq_res)
free_irq(irq_res->start, NULL);
- clk_disable(s3c_ac97.ac97_clk);
- clk_put(s3c_ac97.ac97_clk);
-
- iounmap(s3c_ac97.regs);
-
- mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (mem_res)
- release_mem_region(mem_res->start, resource_size(mem_res));
+ clk_disable_unprepare(s3c_ac97.ac97_clk);
+ snd_soc_set_ac97_ops(NULL);
return 0;
}
@@ -502,19 +478,9 @@ static struct platform_driver s3c_ac97_driver = {
},
};
-static int __init s3c_ac97_init(void)
-{
- return platform_driver_register(&s3c_ac97_driver);
-}
-module_init(s3c_ac97_init);
-
-static void __exit s3c_ac97_exit(void)
-{
- platform_driver_unregister(&s3c_ac97_driver);
-}
-module_exit(s3c_ac97_exit);
+module_platform_driver(s3c_ac97_driver);
-MODULE_AUTHOR("Jaswinder Singh, <jassi.brar@samsung.com>");
+MODULE_AUTHOR("Jaswinder Singh, <jassisinghbrar@gmail.com>");
MODULE_DESCRIPTION("AC97 driver for the Samsung SoC");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:samsung-ac97");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-15 20:15:45 +0000