--- /dev/null
+/*
+ * Bells audio support
+ *
+ * Copyright 2012 Wolfson Microelectronics
+ *
+ * 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
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/jack.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+
+#include "../codecs/wm5102.h"
+#include "../codecs/wm9081.h"
+
+/* BCLK2 is fixed at this currently */
+#define BCLK2_RATE (64 * 8000)
+
+/*
+ * Expect a 24.576MHz crystal if one is fitted (the driver will function
+ * if this is not fitted).
+ */
+#define MCLK_RATE 24576000
+
+#define SYS_AUDIO_RATE 44100
+#define SYS_MCLK_RATE (SYS_AUDIO_RATE * 512)
+
+#define DAI_AP_DSP 0
+#define DAI_DSP_CODEC 1
+#define DAI_CODEC_CP 2
+#define DAI_CODEC_SUB 3
+
+struct bells_drvdata {
+ int sysclk_rate;
+ int asyncclk_rate;
+};
+
+static struct bells_drvdata wm2200_drvdata = {
+ .sysclk_rate = 22579200,
+};
+
+static struct bells_drvdata wm5102_drvdata = {
+ .sysclk_rate = 45158400,
+ .asyncclk_rate = 49152000,
+};
+
+static struct bells_drvdata wm5110_drvdata = {
+ .sysclk_rate = 135475200,
+ .asyncclk_rate = 147456000,
+};
+
+static int bells_set_bias_level(struct snd_soc_card *card,
+ struct snd_soc_dapm_context *dapm,
+ enum snd_soc_bias_level level)
+{
+ struct snd_soc_dai *codec_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct bells_drvdata *bells = card->drvdata;
+ int ret;
+
+ if (dapm->dev != codec_dai->dev)
+ return 0;
+
+ switch (level) {
+ case SND_SOC_BIAS_PREPARE:
+ if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
+ break;
+
+ ret = snd_soc_codec_set_pll(codec, WM5102_FLL1,
+ ARIZONA_FLL_SRC_MCLK1,
+ MCLK_RATE,
+ bells->sysclk_rate);
+ if (ret < 0)
+ pr_err("Failed to start FLL: %d\n", ret);
+
+ if (bells->asyncclk_rate) {
+ ret = snd_soc_codec_set_pll(codec, WM5102_FLL2,
+ ARIZONA_FLL_SRC_AIF2BCLK,
+ BCLK2_RATE,
+ bells->asyncclk_rate);
+ if (ret < 0)
+ pr_err("Failed to start FLL: %d\n", ret);
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return 0;
+}
+
+static int bells_set_bias_level_post(struct snd_soc_card *card,
+ struct snd_soc_dapm_context *dapm,
+ enum snd_soc_bias_level level)
+{
+ struct snd_soc_dai *codec_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
+ struct snd_soc_codec *codec = codec_dai->codec;
+ struct bells_drvdata *bells = card->drvdata;
+ int ret;
+
+ if (dapm->dev != codec_dai->dev)
+ return 0;
+
+ switch (level) {
+ case SND_SOC_BIAS_STANDBY:
+ ret = snd_soc_codec_set_pll(codec, WM5102_FLL1, 0, 0, 0);
+ if (ret < 0) {
+ pr_err("Failed to stop FLL: %d\n", ret);
+ return ret;
+ }
+
+ if (bells->asyncclk_rate) {
+ ret = snd_soc_codec_set_pll(codec, WM5102_FLL2,
+ 0, 0, 0);
+ if (ret < 0) {
+ pr_err("Failed to stop FLL: %d\n", ret);
+ return ret;
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ dapm->bias_level = level;
+
+ return 0;
+}
+
+static int bells_late_probe(struct snd_soc_card *card)
+{
+ struct bells_drvdata *bells = card->drvdata;
+ struct snd_soc_codec *wm0010 = card->rtd[DAI_AP_DSP].codec;
+ struct snd_soc_codec *codec = card->rtd[DAI_DSP_CODEC].codec;
+ struct snd_soc_dai *aif1_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
+ struct snd_soc_dai *aif2_dai;
+ struct snd_soc_dai *aif3_dai;
+ struct snd_soc_dai *wm9081_dai;
+ int ret;
+
+ ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK,
+ ARIZONA_CLK_SRC_FLL1,
+ bells->sysclk_rate,
+ SND_SOC_CLOCK_IN);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to set SYSCLK: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_codec_set_sysclk(wm0010, 0, 0, SYS_MCLK_RATE, 0);
+ if (ret != 0) {
+ dev_err(wm0010->dev, "Failed to set WM0010 clock: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0);
+ if (ret != 0)
+ dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
+
+ ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_OPCLK, 0,
+ SYS_MCLK_RATE, SND_SOC_CLOCK_OUT);
+ if (ret != 0)
+ dev_err(codec->dev, "Failed to set OPCLK: %d\n", ret);
+
+ if (card->num_rtd == DAI_CODEC_CP)
+ return 0;
+
+ ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_ASYNCCLK,
+ ARIZONA_CLK_SRC_FLL2,
+ bells->asyncclk_rate,
+ SND_SOC_CLOCK_IN);
+ if (ret != 0) {
+ dev_err(codec->dev, "Failed to set ASYNCCLK: %d\n", ret);
+ return ret;
+ }
+
+ aif2_dai = card->rtd[DAI_CODEC_CP].cpu_dai;
+
+ ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0);
+ if (ret != 0) {
+ dev_err(aif2_dai->dev, "Failed to set AIF2 clock: %d\n", ret);
+ return ret;
+ }
+
+ if (card->num_rtd == DAI_CODEC_SUB)
+ return 0;
+
+ aif3_dai = card->rtd[DAI_CODEC_SUB].cpu_dai;
+ wm9081_dai = card->rtd[DAI_CODEC_SUB].codec_dai;
+
+ ret = snd_soc_dai_set_sysclk(aif3_dai, ARIZONA_CLK_SYSCLK, 0, 0);
+ if (ret != 0) {
+ dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
+ return ret;
+ }
+
+ ret = snd_soc_codec_set_sysclk(wm9081_dai->codec, WM9081_SYSCLK_MCLK,
+ 0, SYS_MCLK_RATE, 0);
+ if (ret != 0) {
+ dev_err(wm9081_dai->dev, "Failed to set MCLK: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_pcm_stream baseband_params = {
+ .formats = SNDRV_PCM_FMTBIT_S32_LE,
+ .rate_min = 8000,
+ .rate_max = 8000,
+ .channels_min = 2,
+ .channels_max = 2,
+};
+
+static const struct snd_soc_pcm_stream sub_params = {
+ .formats = SNDRV_PCM_FMTBIT_S32_LE,
+ .rate_min = SYS_AUDIO_RATE,
+ .rate_max = SYS_AUDIO_RATE,
+ .channels_min = 2,
+ .channels_max = 2,
+};
+
+static struct snd_soc_dai_link bells_dai_wm2200[] = {
+ {
+ .name = "CPU-DSP",
+ .stream_name = "CPU-DSP",
+ .cpu_dai_name = "samsung-i2s.0",
+ .codec_dai_name = "wm0010-sdi1",
+ .platform_name = "samsung-i2s.0",
+ .codec_name = "spi0.0",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ },
+ {
+ .name = "DSP-CODEC",
+ .stream_name = "DSP-CODEC",
+ .cpu_dai_name = "wm0010-sdi2",
+ .codec_dai_name = "wm2200",
+ .codec_name = "wm2200.1-003a",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ .params = &sub_params,
+ .ignore_suspend = 1,
+ },
+};
+
+static struct snd_soc_dai_link bells_dai_wm5102[] = {
+ {
+ .name = "CPU-DSP",
+ .stream_name = "CPU-DSP",
+ .cpu_dai_name = "samsung-i2s.0",
+ .codec_dai_name = "wm0010-sdi1",
+ .platform_name = "samsung-i2s.0",
+ .codec_name = "spi0.0",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ },
+ {
+ .name = "DSP-CODEC",
+ .stream_name = "DSP-CODEC",
+ .cpu_dai_name = "wm0010-sdi2",
+ .codec_dai_name = "wm5102-aif1",
+ .codec_name = "wm5102-codec",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ .params = &sub_params,
+ .ignore_suspend = 1,
+ },
+ {
+ .name = "Baseband",
+ .stream_name = "Baseband",
+ .cpu_dai_name = "wm5102-aif2",
+ .codec_dai_name = "wm1250-ev1",
+ .codec_name = "wm1250-ev1.1-0027",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ .ignore_suspend = 1,
+ .params = &baseband_params,
+ },
+ {
+ .name = "Sub",
+ .stream_name = "Sub",
+ .cpu_dai_name = "wm5102-aif3",
+ .codec_dai_name = "wm9081-hifi",
+ .codec_name = "wm9081.1-006c",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBS_CFS,
+ .ignore_suspend = 1,
+ .params = &sub_params,
+ },
+};
+
+static struct snd_soc_dai_link bells_dai_wm5110[] = {
+ {
+ .name = "CPU-DSP",
+ .stream_name = "CPU-DSP",
+ .cpu_dai_name = "samsung-i2s.0",
+ .codec_dai_name = "wm0010-sdi1",
+ .platform_name = "samsung-i2s.0",
+ .codec_name = "spi0.0",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ },
+ {
+ .name = "DSP-CODEC",
+ .stream_name = "DSP-CODEC",
+ .cpu_dai_name = "wm0010-sdi2",
+ .codec_dai_name = "wm5110-aif1",
+ .codec_name = "wm5110-codec",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ .params = &sub_params,
+ .ignore_suspend = 1,
+ },
+ {
+ .name = "Baseband",
+ .stream_name = "Baseband",
+ .cpu_dai_name = "wm5110-aif2",
+ .codec_dai_name = "wm1250-ev1",
+ .codec_name = "wm1250-ev1.1-0027",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBM_CFM,
+ .ignore_suspend = 1,
+ .params = &baseband_params,
+ },
+ {
+ .name = "Sub",
+ .stream_name = "Sub",
+ .cpu_dai_name = "wm5110-aif3",
+ .codec_dai_name = "wm9081-hifi",
+ .codec_name = "wm9081.1-006c",
+ .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+ | SND_SOC_DAIFMT_CBS_CFS,
+ .ignore_suspend = 1,
+ .params = &sub_params,
+ },
+};
+
+static struct snd_soc_codec_conf bells_codec_conf[] = {
+ {
+ .dev_name = "wm9081.1-006c",
+ .name_prefix = "Sub",
+ },
+};
+
+static struct snd_soc_dapm_widget bells_widgets[] = {
+ SND_SOC_DAPM_MIC("DMIC", NULL),
+};
+
+static struct snd_soc_dapm_route bells_routes[] = {
+ { "Sub CLK_SYS", NULL, "OPCLK" },
+ { "CLKIN", NULL, "OPCLK" },
+
+ { "DMIC", NULL, "MICBIAS2" },
+ { "IN2L", NULL, "DMIC" },
+ { "IN2R", NULL, "DMIC" },
+};
+
+static struct snd_soc_card bells_cards[] = {
+ {
+ .name = "Bells WM2200",
+ .owner = THIS_MODULE,
+ .dai_link = bells_dai_wm2200,
+ .num_links = ARRAY_SIZE(bells_dai_wm2200),
+ .codec_conf = bells_codec_conf,
+ .num_configs = ARRAY_SIZE(bells_codec_conf),
+
+ .late_probe = bells_late_probe,
+
+ .dapm_widgets = bells_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(bells_widgets),
+ .dapm_routes = bells_routes,
+ .num_dapm_routes = ARRAY_SIZE(bells_routes),
+
+ .set_bias_level = bells_set_bias_level,
+ .set_bias_level_post = bells_set_bias_level_post,
+
+ .drvdata = &wm2200_drvdata,
+ },
+ {
+ .name = "Bells WM5102",
+ .owner = THIS_MODULE,
+ .dai_link = bells_dai_wm5102,
+ .num_links = ARRAY_SIZE(bells_dai_wm5102),
+ .codec_conf = bells_codec_conf,
+ .num_configs = ARRAY_SIZE(bells_codec_conf),
+
+ .late_probe = bells_late_probe,
+
+ .dapm_widgets = bells_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(bells_widgets),
+ .dapm_routes = bells_routes,
+ .num_dapm_routes = ARRAY_SIZE(bells_routes),
+
+ .set_bias_level = bells_set_bias_level,
+ .set_bias_level_post = bells_set_bias_level_post,
+
+ .drvdata = &wm5102_drvdata,
+ },
+ {
+ .name = "Bells WM5110",
+ .owner = THIS_MODULE,
+ .dai_link = bells_dai_wm5110,
+ .num_links = ARRAY_SIZE(bells_dai_wm5110),
+ .codec_conf = bells_codec_conf,
+ .num_configs = ARRAY_SIZE(bells_codec_conf),
+
+ .late_probe = bells_late_probe,
+
+ .dapm_widgets = bells_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(bells_widgets),
+ .dapm_routes = bells_routes,
+ .num_dapm_routes = ARRAY_SIZE(bells_routes),
+
+ .set_bias_level = bells_set_bias_level,
+ .set_bias_level_post = bells_set_bias_level_post,
+
+ .drvdata = &wm5110_drvdata,
+ },
+};
+
+
+static int bells_probe(struct platform_device *pdev)
+{
+ int ret;
+
+ bells_cards[pdev->id].dev = &pdev->dev;
+
+ ret = devm_snd_soc_register_card(&pdev->dev, &bells_cards[pdev->id]);
+ if (ret)
+ dev_err(&pdev->dev,
+ "snd_soc_register_card(%s) failed: %d\n",
+ bells_cards[pdev->id].name, ret);
+
+ return ret;
+}
+
+static struct platform_driver bells_driver = {
+ .driver = {
+ .name = "bells",
+ .pm = &snd_soc_pm_ops,
+ },
+ .probe = bells_probe,
+};
+
+module_platform_driver(bells_driver);
+
+MODULE_DESCRIPTION("Bells audio support");
+MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:bells");
Code Review / kvmfornfv.git / blobdiff