aboutsummaryrefslogtreecommitdiff
path: root/sound/soc/codecs/pcm3008.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/codecs/pcm3008.c')
-rw-r--r--sound/soc/codecs/pcm3008.c217
1 files changed, 89 insertions, 128 deletions
diff --git a/sound/soc/codecs/pcm3008.c b/sound/soc/codecs/pcm3008.c
index 5cda9e6b5a7..b6618c4a759 100644
--- a/sound/soc/codecs/pcm3008.c
+++ b/sound/soc/codecs/pcm3008.c
@@ -19,6 +19,8 @@
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/gpio.h>
+#include <linux/slab.h>
+#include <linux/module.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/initval.h>
@@ -26,13 +28,60 @@
#include "pcm3008.h"
-#define PCM3008_VERSION "0.2"
+static int pcm3008_dac_ev(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol,
+ int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ struct pcm3008_setup_data *setup = codec->dev->platform_data;
+
+ gpio_set_value_cansleep(setup->pdda_pin,
+ SND_SOC_DAPM_EVENT_ON(event));
+
+ return 0;
+}
+
+static int pcm3008_adc_ev(struct snd_soc_dapm_widget *w,
+ struct snd_kcontrol *kcontrol,
+ int event)
+{
+ struct snd_soc_codec *codec = w->codec;
+ struct pcm3008_setup_data *setup = codec->dev->platform_data;
+
+ gpio_set_value_cansleep(setup->pdad_pin,
+ SND_SOC_DAPM_EVENT_ON(event));
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget pcm3008_dapm_widgets[] = {
+SND_SOC_DAPM_INPUT("VINL"),
+SND_SOC_DAPM_INPUT("VINR"),
+
+SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, pcm3008_dac_ev,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+SND_SOC_DAPM_ADC_E("ADC", NULL, SND_SOC_NOPM, 0, 0, pcm3008_adc_ev,
+ SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
+
+SND_SOC_DAPM_OUTPUT("VOUTL"),
+SND_SOC_DAPM_OUTPUT("VOUTR"),
+};
+
+static const struct snd_soc_dapm_route pcm3008_dapm_routes[] = {
+ { "PCM3008 Capture", NULL, "ADC" },
+ { "ADC", NULL, "VINL" },
+ { "ADC", NULL, "VINR" },
+
+ { "DAC", NULL, "PCM3008 Playback" },
+ { "VOUTL", NULL, "DAC" },
+ { "VOUTR", NULL, "DAC" },
+};
#define PCM3008_RATES (SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
SNDRV_PCM_RATE_48000)
-struct snd_soc_dai pcm3008_dai = {
- .name = "PCM3008 HiFi",
+static struct snd_soc_dai_driver pcm3008_dai = {
+ .name = "pcm3008-hifi",
.playback = {
.stream_name = "PCM3008 Playback",
.channels_min = 1,
@@ -48,54 +97,21 @@ struct snd_soc_dai pcm3008_dai = {
.formats = SNDRV_PCM_FMTBIT_S16_LE,
},
};
-EXPORT_SYMBOL_GPL(pcm3008_dai);
-static void pcm3008_gpio_free(struct pcm3008_setup_data *setup)
-{
- gpio_free(setup->dem0_pin);
- gpio_free(setup->dem1_pin);
- gpio_free(setup->pdad_pin);
- gpio_free(setup->pdda_pin);
-}
+static struct snd_soc_codec_driver soc_codec_dev_pcm3008 = {
+ .dapm_widgets = pcm3008_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(pcm3008_dapm_widgets),
+ .dapm_routes = pcm3008_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(pcm3008_dapm_routes),
+};
-static int pcm3008_soc_probe(struct platform_device *pdev)
+static int pcm3008_codec_probe(struct platform_device *pdev)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec;
- struct pcm3008_setup_data *setup = socdev->codec_data;
- int ret = 0;
-
- printk(KERN_INFO "PCM3008 SoC Audio Codec %s\n", PCM3008_VERSION);
-
- socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
- if (!socdev->card->codec)
- return -ENOMEM;
-
- codec = socdev->card->codec;
- mutex_init(&codec->mutex);
-
- codec->name = "PCM3008";
- codec->owner = THIS_MODULE;
- codec->dai = &pcm3008_dai;
- codec->num_dai = 1;
- codec->write = NULL;
- codec->read = NULL;
- INIT_LIST_HEAD(&codec->dapm_widgets);
- INIT_LIST_HEAD(&codec->dapm_paths);
-
- /* Register PCMs. */
- ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
- if (ret < 0) {
- printk(KERN_ERR "pcm3008: failed to create pcms\n");
- goto pcm_err;
- }
-
- /* Register Card. */
- ret = snd_soc_init_card(socdev);
- if (ret < 0) {
- printk(KERN_ERR "pcm3008: failed to register card\n");
- goto card_err;
- }
+ struct pcm3008_setup_data *setup = pdev->dev.platform_data;
+ int ret;
+
+ if (!setup)
+ return -EINVAL;
/* DEM1 DEM0 DE-EMPHASIS_MODE
* Low Low De-emphasis 44.1 kHz ON
@@ -105,107 +121,52 @@ static int pcm3008_soc_probe(struct platform_device *pdev)
*/
/* Configure DEM0 GPIO (turning OFF DAC De-emphasis). */
- ret = gpio_request(setup->dem0_pin, "codec_dem0");
- if (ret == 0)
- ret = gpio_direction_output(setup->dem0_pin, 1);
+ ret = devm_gpio_request_one(&pdev->dev, setup->dem0_pin,
+ GPIOF_OUT_INIT_HIGH, "codec_dem0");
if (ret != 0)
- goto gpio_err;
+ return ret;
/* Configure DEM1 GPIO (turning OFF DAC De-emphasis). */
- ret = gpio_request(setup->dem1_pin, "codec_dem1");
- if (ret == 0)
- ret = gpio_direction_output(setup->dem1_pin, 0);
+ ret = devm_gpio_request_one(&pdev->dev, setup->dem1_pin,
+ GPIOF_OUT_INIT_LOW, "codec_dem1");
if (ret != 0)
- goto gpio_err;
+ return ret;
/* Configure PDAD GPIO. */
- ret = gpio_request(setup->pdad_pin, "codec_pdad");
- if (ret == 0)
- ret = gpio_direction_output(setup->pdad_pin, 1);
+ ret = devm_gpio_request_one(&pdev->dev, setup->pdad_pin,
+ GPIOF_OUT_INIT_LOW, "codec_pdad");
if (ret != 0)
- goto gpio_err;
+ return ret;
/* Configure PDDA GPIO. */
- ret = gpio_request(setup->pdda_pin, "codec_pdda");
- if (ret == 0)
- ret = gpio_direction_output(setup->pdda_pin, 1);
+ ret = devm_gpio_request_one(&pdev->dev, setup->pdda_pin,
+ GPIOF_OUT_INIT_LOW, "codec_pdda");
if (ret != 0)
- goto gpio_err;
-
- return ret;
-
-gpio_err:
- pcm3008_gpio_free(setup);
-card_err:
- snd_soc_free_pcms(socdev);
-pcm_err:
- kfree(socdev->card->codec);
+ return ret;
- return ret;
+ return snd_soc_register_codec(&pdev->dev,
+ &soc_codec_dev_pcm3008, &pcm3008_dai, 1);
}
-static int pcm3008_soc_remove(struct platform_device *pdev)
+static int pcm3008_codec_remove(struct platform_device *pdev)
{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct snd_soc_codec *codec = socdev->card->codec;
- struct pcm3008_setup_data *setup = socdev->codec_data;
-
- if (!codec)
- return 0;
-
- pcm3008_gpio_free(setup);
- snd_soc_free_pcms(socdev);
- kfree(socdev->card->codec);
+ snd_soc_unregister_codec(&pdev->dev);
return 0;
}
-#ifdef CONFIG_PM
-static int pcm3008_soc_suspend(struct platform_device *pdev, pm_message_t msg)
-{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct pcm3008_setup_data *setup = socdev->codec_data;
+MODULE_ALIAS("platform:pcm3008-codec");
- gpio_set_value(setup->pdad_pin, 0);
- gpio_set_value(setup->pdda_pin, 0);
-
- return 0;
-}
-
-static int pcm3008_soc_resume(struct platform_device *pdev)
-{
- struct snd_soc_device *socdev = platform_get_drvdata(pdev);
- struct pcm3008_setup_data *setup = socdev->codec_data;
-
- gpio_set_value(setup->pdad_pin, 1);
- gpio_set_value(setup->pdda_pin, 1);
-
- return 0;
-}
-#else
-#define pcm3008_soc_suspend NULL
-#define pcm3008_soc_resume NULL
-#endif
-
-struct snd_soc_codec_device soc_codec_dev_pcm3008 = {
- .probe = pcm3008_soc_probe,
- .remove = pcm3008_soc_remove,
- .suspend = pcm3008_soc_suspend,
- .resume = pcm3008_soc_resume,
+static struct platform_driver pcm3008_codec_driver = {
+ .probe = pcm3008_codec_probe,
+ .remove = pcm3008_codec_remove,
+ .driver = {
+ .name = "pcm3008-codec",
+ .owner = THIS_MODULE,
+ },
};
-EXPORT_SYMBOL_GPL(soc_codec_dev_pcm3008);
-static int __init pcm3008_init(void)
-{
- return snd_soc_register_dai(&pcm3008_dai);
-}
-module_init(pcm3008_init);
-
-static void __exit pcm3008_exit(void)
-{
- snd_soc_unregister_dai(&pcm3008_dai);
-}
-module_exit(pcm3008_exit);
+module_platform_driver(pcm3008_codec_driver);
MODULE_DESCRIPTION("Soc PCM3008 driver");
MODULE_AUTHOR("Hugo Villeneuve");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 20:45:28 +0000