| /* |
| * 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" |
| |
| #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 struct snd_soc_ops spitz_ops = { |
| .startup = spitz_startup, |
| }; |
| |
| 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; |
| } |
| |
| static unsigned int spitz_config_sysclk(struct snd_soc_pcm_runtime *rtd, |
| struct snd_soc_clock_info *info) |
| { |
| if (info->bclk_master & SND_SOC_DAIFMT_CBS_CFS) { |
| /* pxa2xx is i2s master */ |
| switch (info->rate) { |
| case 11025: |
| case 22050: |
| case 44100: |
| case 88200: |
| /* configure codec digital filters |
| * for 11.025, 22.05, 44.1, 88.2 */ |
| rtd->codec_dai->config_sysclk(rtd->codec_dai, info, |
| 11289600); |
| break; |
| default: |
| /* configure codec digital filters for all other rates */ |
| rtd->codec_dai->config_sysclk(rtd->codec_dai, info, |
| SPITZ_AUDIO_CLOCK); |
| break; |
| } |
| /* configure pxa2xx i2s interface clocks as master */ |
| return rtd->cpu_dai->config_sysclk(rtd->cpu_dai, info, |
| SPITZ_AUDIO_CLOCK); |
| } else { |
| /* codec is i2s master - only configure codec DAI clock */ |
| return rtd->codec_dai->config_sysclk(rtd->codec_dai, info, |
| SPITZ_AUDIO_CLOCK); |
| } |
| } |
| |
| /* 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, |
| .config_sysclk = spitz_config_sysclk, |
| }; |
| |
| /* spitz audio machine driver */ |
| static struct snd_soc_machine snd_soc_machine_spitz = { |
| .name = "Spitz", |
| .dai_link = &spitz_dai, |
| .num_links = 1, |
| .ops = &spitz_ops, |
| }; |
| |
| /* 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"); |