diff options
Diffstat (limited to 'sound/soc/pxa/spitz.c')
| -rw-r--r-- | sound/soc/pxa/spitz.c | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/sound/soc/pxa/spitz.c b/sound/soc/pxa/spitz.c new file mode 100644 index 00000000000..80e82109fef --- /dev/null +++ b/sound/soc/pxa/spitz.c @@ -0,0 +1,394 @@ +/* + * spitz.c -- SoC audio for Sharp SL-Cxx00 models Spitz, Borzoi and Akita + * + * Copyright 2005 Wolfson Microelectronics PLC. + * Copyright 2005 Openedhand Ltd. + * + * Authors: Liam Girdwood <liam.girdwood@wolfsonmicro.com> + * Richard Purdie <richard@openedhand.com> + * + * 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. + * + * Revision history + * 30th Nov 2005 Initial version. + * + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/timer.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <sound/driver.h> +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> +#include <sound/soc-dapm.h> + +#include <asm/mach-types.h> +#include <asm/hardware/scoop.h> +#include <asm/arch/pxa-regs.h> +#include <asm/arch/hardware.h> +#include <asm/arch/akita.h> +#include <asm/arch/spitz.h> +#include <asm/mach-types.h> +#include "../codecs/wm8750.h" +#include "pxa2xx-pcm.h" +#include "pxa2xx-i2s.h" + +#define SPITZ_HP 0 +#define SPITZ_MIC 1 +#define SPITZ_LINE 2 +#define SPITZ_HEADSET 3 +#define SPITZ_HP_OFF 4 +#define SPITZ_SPK_ON 0 +#define SPITZ_SPK_OFF 1 + + /* audio clock in Hz - rounded from 12.235MHz */ +#define SPITZ_AUDIO_CLOCK 12288000 + +static int spitz_jack_func; +static int spitz_spk_func; + +static void spitz_ext_control(struct snd_soc_codec *codec) +{ + if (spitz_spk_func == SPITZ_SPK_ON) + snd_soc_dapm_set_endpoint(codec, "Ext Spk", 1); + else + snd_soc_dapm_set_endpoint(codec, "Ext Spk", 0); + + /* set up jack connection */ + switch (spitz_jack_func) { + case SPITZ_HP: + /* enable and unmute hp jack, disable mic bias */ + snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Line Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 1); + set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L); + set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R); + break; + case SPITZ_MIC: + /* enable mic jack and bias, mute hp */ + snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Line Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Mic Jack", 1); + reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L); + reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R); + break; + case SPITZ_LINE: + /* enable line jack, disable mic bias and mute hp */ + snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Line Jack", 1); + reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L); + reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R); + break; + case SPITZ_HEADSET: + /* enable and unmute headset jack enable mic bias, mute L hp */ + snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Mic Jack", 1); + snd_soc_dapm_set_endpoint(codec, "Line Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Headset Jack", 1); + reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L); + set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R); + break; + case SPITZ_HP_OFF: + + /* jack removed, everything off */ + snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Headset Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Mic Jack", 0); + snd_soc_dapm_set_endpoint(codec, "Line Jack", 0); + reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_L); + reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_MUTE_R); + break; + } + snd_soc_dapm_sync_endpoints(codec); +} + +static int spitz_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec *codec = rtd->socdev->codec; + + /* check the jack status at stream startup */ + spitz_ext_control(codec); + return 0; +} + +static int spitz_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai; + struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai; + unsigned int clk = 0; + int ret = 0; + + switch (params_rate(params)) { + case 8000: + case 16000: + case 48000: + case 96000: + clk = 12288000; + break; + case 11025: + case 22050: + case 44100: + clk = 11289600; + break; + } + + /* set codec DAI configuration */ + ret = codec_dai->dai_ops.set_fmt(codec_dai, SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); + if (ret < 0) + return ret; + + /* set cpu DAI configuration */ + ret = cpu_dai->dai_ops.set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S | + SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS); + if (ret < 0) + return ret; + + /* set the codec system clock for DAC and ADC */ + ret = codec_dai->dai_ops.set_sysclk(codec_dai, WM8750_SYSCLK, clk, + SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + + /* set the I2S system clock as input (unused) */ + ret = cpu_dai->dai_ops.set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0, + SND_SOC_CLOCK_IN); + if (ret < 0) + return ret; + + return 0; +} + +static struct snd_soc_ops spitz_ops = { + .startup = spitz_startup, + .hw_params = spitz_hw_params, +}; + +static int spitz_get_jack(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = spitz_jack_func; + return 0; +} + +static int spitz_set_jack(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + + if (spitz_jack_func == ucontrol->value.integer.value[0]) + return 0; + + spitz_jack_func = ucontrol->value.integer.value[0]; + spitz_ext_control(codec); + return 1; +} + +static int spitz_get_spk(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + ucontrol->value.integer.value[0] = spitz_spk_func; + return 0; +} + +static int spitz_set_spk(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); + + if (spitz_spk_func == ucontrol->value.integer.value[0]) + return 0; + + spitz_spk_func = ucontrol->value.integer.value[0]; + spitz_ext_control(codec); + return 1; +} + +static int spitz_mic_bias(struct snd_soc_dapm_widget *w, int event) +{ + if (machine_is_borzoi() || machine_is_spitz()) { + if (SND_SOC_DAPM_EVENT_ON(event)) + set_scoop_gpio(&spitzscoop2_device.dev, + SPITZ_SCP2_MIC_BIAS); + else + reset_scoop_gpio(&spitzscoop2_device.dev, + SPITZ_SCP2_MIC_BIAS); + } + + if (machine_is_akita()) { + if (SND_SOC_DAPM_EVENT_ON(event)) + akita_set_ioexp(&akitaioexp_device.dev, + AKITA_IOEXP_MIC_BIAS); + else + akita_reset_ioexp(&akitaioexp_device.dev, + AKITA_IOEXP_MIC_BIAS); + } + return 0; +} + +/* spitz machine dapm widgets */ +static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias), + SND_SOC_DAPM_SPK("Ext Spk", NULL), + SND_SOC_DAPM_LINE("Line Jack", NULL), + + /* headset is a mic and mono headphone */ + SND_SOC_DAPM_HP("Headset Jack", NULL), +}; + +/* Spitz machine audio_map */ +static const char *audio_map[][3] = { + + /* headphone connected to LOUT1, ROUT1 */ + {"Headphone Jack", NULL, "LOUT1"}, + {"Headphone Jack", NULL, "ROUT1"}, + + /* headset connected to ROUT1 and LINPUT1 with bias (def below) */ + {"Headset Jack", NULL, "ROUT1"}, + + /* ext speaker connected to LOUT2, ROUT2 */ + {"Ext Spk", NULL , "ROUT2"}, + {"Ext Spk", NULL , "LOUT2"}, + + /* mic is connected to input 1 - with bias */ + {"LINPUT1", NULL, "Mic Bias"}, + {"Mic Bias", NULL, "Mic Jack"}, + + /* line is connected to input 1 - no bias */ + {"LINPUT1", NULL, "Line Jack"}, + + {NULL, NULL, NULL}, +}; + +static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset", + "Off"}; +static const char *spk_function[] = {"On", "Off"}; +static const struct soc_enum spitz_enum[] = { + SOC_ENUM_SINGLE_EXT(5, jack_function), + SOC_ENUM_SINGLE_EXT(2, spk_function), +}; + +static const struct snd_kcontrol_new wm8750_spitz_controls[] = { + SOC_ENUM_EXT("Jack Function", spitz_enum[0], spitz_get_jack, + spitz_set_jack), + SOC_ENUM_EXT("Speaker Function", spitz_enum[1], spitz_get_spk, + spitz_set_spk), +}; + +/* + * Logic for a wm8750 as connected on a Sharp SL-Cxx00 Device + */ +static int spitz_wm8750_init(struct snd_soc_codec *codec) +{ + int i, err; + + /* NC codec pins */ + snd_soc_dapm_set_endpoint(codec, "RINPUT1", 0); + snd_soc_dapm_set_endpoint(codec, "LINPUT2", 0); + snd_soc_dapm_set_endpoint(codec, "RINPUT2", 0); + snd_soc_dapm_set_endpoint(codec, "LINPUT3", 0); + snd_soc_dapm_set_endpoint(codec, "RINPUT3", 0); + snd_soc_dapm_set_endpoint(codec, "OUT3", 0); + snd_soc_dapm_set_endpoint(codec, "MONO", 0); + + /* Add spitz specific controls */ + for (i = 0; i < ARRAY_SIZE(wm8750_spitz_controls); i++) { + err = snd_ctl_add(codec->card, + snd_soc_cnew(&wm8750_spitz_controls[i], codec, NULL)); + if (err < 0) + return err; + } + + /* Add spitz specific widgets */ + for (i = 0; i < ARRAY_SIZE(wm8750_dapm_widgets); i++) { + snd_soc_dapm_new_control(codec, &wm8750_dapm_widgets[i]); + } + + /* Set up spitz specific audio path audio_map */ + for (i = 0; audio_map[i][0] != NULL; i++) { + snd_soc_dapm_connect_input(codec, audio_map[i][0], + audio_map[i][1], audio_map[i][2]); + } + + snd_soc_dapm_sync_endpoints(codec); + return 0; +} + +/* spitz digital audio interface glue - connects codec <--> CPU */ +static struct snd_soc_dai_link spitz_dai = { + .name = "wm8750", + .stream_name = "WM8750", + .cpu_dai = &pxa_i2s_dai, + .codec_dai = &wm8750_dai, + .init = spitz_wm8750_init, + .ops = &spitz_ops, +}; + +/* spitz audio machine driver */ +static struct snd_soc_machine snd_soc_machine_spitz = { + .name = "Spitz", + .dai_link = &spitz_dai, + .num_links = 1, +}; + +/* spitz audio private data */ +static struct wm8750_setup_data spitz_wm8750_setup = { + .i2c_address = 0x1b, +}; + +/* spitz audio subsystem */ +static struct snd_soc_device spitz_snd_devdata = { + .machine = &snd_soc_machine_spitz, + .platform = &pxa2xx_soc_platform, + .codec_dev = &soc_codec_dev_wm8750, + .codec_data = &spitz_wm8750_setup, +}; + +static struct platform_device *spitz_snd_device; + +static int __init spitz_init(void) +{ + int ret; + + if (!(machine_is_spitz() || machine_is_borzoi() || machine_is_akita())) + return -ENODEV; + + spitz_snd_device = platform_device_alloc("soc-audio", -1); + if (!spitz_snd_device) + return -ENOMEM; + + platform_set_drvdata(spitz_snd_device, &spitz_snd_devdata); + spitz_snd_devdata.dev = &spitz_snd_device->dev; + ret = platform_device_add(spitz_snd_device); + + if (ret) + platform_device_put(spitz_snd_device); + + return ret; +} + +static void __exit spitz_exit(void) +{ + platform_device_unregister(spitz_snd_device); +} + +module_init(spitz_init); +module_exit(spitz_exit); + +MODULE_AUTHOR("Richard Purdie"); +MODULE_DESCRIPTION("ALSA SoC Spitz"); +MODULE_LICENSE("GPL"); |