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Diffstat (limited to 'sound/soc/codecs/wm8753.c')
-rw-r--r--sound/soc/codecs/wm8753.c114
1 files changed, 94 insertions, 20 deletions
diff --git a/sound/soc/codecs/wm8753.c b/sound/soc/codecs/wm8753.c
index 8c4df44f334..6c21b50c937 100644
--- a/sound/soc/codecs/wm8753.c
+++ b/sound/soc/codecs/wm8753.c
@@ -2,8 +2,7 @@
* wm8753.c -- WM8753 ALSA Soc Audio driver
*
* Copyright 2003 Wolfson Microelectronics PLC.
- * Author: Liam Girdwood
- * liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -40,6 +39,7 @@
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
@@ -51,7 +51,6 @@
#include "wm8753.h"
-#define AUDIO_NAME "wm8753"
#define WM8753_VERSION "0.16"
static int caps_charge = 2000;
@@ -923,7 +922,8 @@ static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_dai *codec_dai,
* Set PCM DAI bit size and sample rate.
*/
static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
@@ -1156,7 +1156,8 @@ static int wm8753_i2s_set_dai_fmt(struct snd_soc_dai *codec_dai,
* Set PCM DAI bit size and sample rate.
*/
static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_device *socdev = rtd->socdev;
@@ -1324,16 +1325,15 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
.channels_min = 1,
.channels_max = 2,
.rates = WM8753_RATES,
- .formats = WM8753_FORMATS,},
+ .formats = WM8753_FORMATS},
.capture = { /* dummy for fast DAI switching */
.stream_name = "Capture",
.channels_min = 1,
.channels_max = 2,
.rates = WM8753_RATES,
- .formats = WM8753_FORMATS,},
+ .formats = WM8753_FORMATS},
.ops = {
- .hw_params = wm8753_i2s_hw_params,},
- .dai_ops = {
+ .hw_params = wm8753_i2s_hw_params,
.digital_mute = wm8753_mute,
.set_fmt = wm8753_mode1h_set_dai_fmt,
.set_clkdiv = wm8753_set_dai_clkdiv,
@@ -1357,8 +1357,7 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
.rates = WM8753_RATES,
.formats = WM8753_FORMATS,},
.ops = {
- .hw_params = wm8753_pcm_hw_params,},
- .dai_ops = {
+ .hw_params = wm8753_pcm_hw_params,
.digital_mute = wm8753_mute,
.set_fmt = wm8753_mode1v_set_dai_fmt,
.set_clkdiv = wm8753_set_dai_clkdiv,
@@ -1386,8 +1385,7 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
.rates = WM8753_RATES,
.formats = WM8753_FORMATS,},
.ops = {
- .hw_params = wm8753_pcm_hw_params,},
- .dai_ops = {
+ .hw_params = wm8753_pcm_hw_params,
.digital_mute = wm8753_mute,
.set_fmt = wm8753_mode2_set_dai_fmt,
.set_clkdiv = wm8753_set_dai_clkdiv,
@@ -1411,8 +1409,7 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
.rates = WM8753_RATES,
.formats = WM8753_FORMATS,},
.ops = {
- .hw_params = wm8753_i2s_hw_params,},
- .dai_ops = {
+ .hw_params = wm8753_i2s_hw_params,
.digital_mute = wm8753_mute,
.set_fmt = wm8753_mode3_4_set_dai_fmt,
.set_clkdiv = wm8753_set_dai_clkdiv,
@@ -1440,8 +1437,7 @@ static const struct snd_soc_dai wm8753_all_dai[] = {
.rates = WM8753_RATES,
.formats = WM8753_FORMATS,},
.ops = {
- .hw_params = wm8753_i2s_hw_params,},
- .dai_ops = {
+ .hw_params = wm8753_i2s_hw_params,
.digital_mute = wm8753_mute,
.set_fmt = wm8753_mode3_4_set_dai_fmt,
.set_clkdiv = wm8753_set_dai_clkdiv,
@@ -1609,7 +1605,7 @@ static int wm8753_init(struct snd_soc_device *socdev)
wm8753_add_controls(codec);
wm8753_add_widgets(codec);
- ret = snd_soc_register_card(socdev);
+ ret = snd_soc_init_card(socdev);
if (ret < 0) {
printk(KERN_ERR "wm8753: failed to register card\n");
goto card_err;
@@ -1719,6 +1715,63 @@ err_driver:
}
#endif
+#if defined(CONFIG_SPI_MASTER)
+static int __devinit wm8753_spi_probe(struct spi_device *spi)
+{
+ struct snd_soc_device *socdev = wm8753_socdev;
+ struct snd_soc_codec *codec = socdev->codec;
+ int ret;
+
+ codec->control_data = spi;
+
+ ret = wm8753_init(socdev);
+ if (ret < 0)
+ dev_err(&spi->dev, "failed to initialise WM8753\n");
+
+ return ret;
+}
+
+static int __devexit wm8753_spi_remove(struct spi_device *spi)
+{
+ return 0;
+}
+
+static struct spi_driver wm8753_spi_driver = {
+ .driver = {
+ .name = "wm8753",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ },
+ .probe = wm8753_spi_probe,
+ .remove = __devexit_p(wm8753_spi_remove),
+};
+
+static int wm8753_spi_write(struct spi_device *spi, const char *data, int len)
+{
+ struct spi_transfer t;
+ struct spi_message m;
+ u8 msg[2];
+
+ if (len <= 0)
+ return 0;
+
+ msg[0] = data[0];
+ msg[1] = data[1];
+
+ spi_message_init(&m);
+ memset(&t, 0, (sizeof t));
+
+ t.tx_buf = &msg[0];
+ t.len = len;
+
+ spi_message_add_tail(&t, &m);
+ spi_sync(spi, &m);
+
+ return len;
+}
+#endif
+
+
static int wm8753_probe(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
@@ -1753,8 +1806,14 @@ static int wm8753_probe(struct platform_device *pdev)
codec->hw_write = (hw_write_t)i2c_master_send;
ret = wm8753_add_i2c_device(pdev, setup);
}
-#else
- /* Add other interfaces here */
+#endif
+#if defined(CONFIG_SPI_MASTER)
+ if (setup->spi) {
+ codec->hw_write = (hw_write_t)wm8753_spi_write;
+ ret = spi_register_driver(&wm8753_spi_driver);
+ if (ret != 0)
+ printk(KERN_ERR "can't add spi driver");
+ }
#endif
if (ret != 0) {
@@ -1798,6 +1857,9 @@ static int wm8753_remove(struct platform_device *pdev)
i2c_unregister_device(codec->control_data);
i2c_del_driver(&wm8753_i2c_driver);
#endif
+#if defined(CONFIG_SPI_MASTER)
+ spi_unregister_driver(&wm8753_spi_driver);
+#endif
kfree(codec->private_data);
kfree(codec);
@@ -1812,6 +1874,18 @@ struct snd_soc_codec_device soc_codec_dev_wm8753 = {
};
EXPORT_SYMBOL_GPL(soc_codec_dev_wm8753);
+static int __init wm8753_modinit(void)
+{
+ return snd_soc_register_dais(wm8753_dai, ARRAY_SIZE(wm8753_dai));
+}
+module_init(wm8753_modinit);
+
+static void __exit wm8753_exit(void)
+{
+ snd_soc_unregister_dais(wm8753_dai, ARRAY_SIZE(wm8753_dai));
+}
+module_exit(wm8753_exit);
+
MODULE_DESCRIPTION("ASoC WM8753 driver");
MODULE_AUTHOR("Liam Girdwood");
MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-01-20 00:07:44 +0000