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yaml --- r: 47072 b: refs/heads/master c: 6e24dd9 h: refs/heads/master v: v3
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Liam Girdwood
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Jaroslav Kysela
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Feb 9, 2007
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| @@ -1,2 +1,2 @@ | ||
| --- | ||
| refs/heads/master: 1b49cb987030c09ca763c1dabd5c5e33f669e530 | ||
| refs/heads/master: 6e24dd9310b66d6f500a81ee320a8babec529573 |
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| /* | ||
| * poodle.c -- SoC audio for Poodle | ||
| * | ||
| * 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. | ||
| * | ||
| */ | ||
|
|
||
| #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/locomo.h> | ||
| #include <asm/arch/pxa-regs.h> | ||
| #include <asm/arch/hardware.h> | ||
| #include <asm/arch/poodle.h> | ||
| #include <asm/arch/audio.h> | ||
|
|
||
| #include "../codecs/wm8731.h" | ||
| #include "pxa2xx-pcm.h" | ||
|
|
||
| #define POODLE_HP 1 | ||
| #define POODLE_HP_OFF 0 | ||
| #define POODLE_SPK_ON 1 | ||
| #define POODLE_SPK_OFF 0 | ||
|
|
||
| /* audio clock in Hz - rounded from 12.235MHz */ | ||
| #define POODLE_AUDIO_CLOCK 12288000 | ||
|
|
||
| static int poodle_jack_func; | ||
| static int poodle_spk_func; | ||
|
|
||
| static void poodle_ext_control(struct snd_soc_codec *codec) | ||
| { | ||
| int spk = 0; | ||
|
|
||
| /* set up jack connection */ | ||
| if (poodle_jack_func == POODLE_HP) { | ||
| /* set = unmute headphone */ | ||
| locomo_gpio_write(&poodle_locomo_device.dev, | ||
| POODLE_LOCOMO_GPIO_MUTE_L, 1); | ||
| locomo_gpio_write(&poodle_locomo_device.dev, | ||
| POODLE_LOCOMO_GPIO_MUTE_R, 1); | ||
| snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 1); | ||
| } else { | ||
| locomo_gpio_write(&poodle_locomo_device.dev, | ||
| POODLE_LOCOMO_GPIO_MUTE_L, 0); | ||
| locomo_gpio_write(&poodle_locomo_device.dev, | ||
| POODLE_LOCOMO_GPIO_MUTE_R, 0); | ||
| snd_soc_dapm_set_endpoint(codec, "Headphone Jack", 0); | ||
| } | ||
|
|
||
| if (poodle_spk_func == POODLE_SPK_ON) | ||
| spk = 1; | ||
|
|
||
| /* set the enpoints to their new connetion states */ | ||
| snd_soc_dapm_set_endpoint(codec, "Ext Spk", spk); | ||
|
|
||
| /* signal a DAPM event */ | ||
| snd_soc_dapm_sync_endpoints(codec); | ||
| } | ||
|
|
||
| static int poodle_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 */ | ||
| poodle_ext_control(codec); | ||
| return 0; | ||
| } | ||
|
|
||
| /* we need to unmute the HP at shutdown as the mute burns power on poodle */ | ||
| static int poodle_shutdown(struct snd_pcm_substream *substream) | ||
| { | ||
| struct snd_soc_pcm_runtime *rtd = substream->private_data; | ||
| struct snd_soc_codec *codec = rtd->socdev->codec; | ||
|
|
||
| /* set = unmute headphone */ | ||
| locomo_gpio_write(&poodle_locomo_device.dev, | ||
| POODLE_LOCOMO_GPIO_MUTE_L, 1); | ||
| locomo_gpio_write(&poodle_locomo_device.dev, | ||
| POODLE_LOCOMO_GPIO_MUTE_R, 1); | ||
| return 0; | ||
| } | ||
|
|
||
| static struct snd_soc_ops poodle_ops = { | ||
| .startup = poodle_startup, | ||
| .shutdown = poodle_shutdown, | ||
| }; | ||
|
|
||
| static int poodle_get_jack(struct snd_kcontrol *kcontrol, | ||
| struct snd_ctl_elem_value *ucontrol) | ||
| { | ||
| ucontrol->value.integer.value[0] = poodle_jack_func; | ||
| return 0; | ||
| } | ||
|
|
||
| static int poodle_set_jack(struct snd_kcontrol *kcontrol, | ||
| struct snd_ctl_elem_value *ucontrol) | ||
| { | ||
| struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | ||
|
|
||
| if (poodle_jack_func == ucontrol->value.integer.value[0]) | ||
| return 0; | ||
|
|
||
| poodle_jack_func = ucontrol->value.integer.value[0]; | ||
| poodle_ext_control(codec); | ||
| return 1; | ||
| } | ||
|
|
||
| static int poodle_get_spk(struct snd_kcontrol *kcontrol, | ||
| struct snd_ctl_elem_value *ucontrol) | ||
| { | ||
| ucontrol->value.integer.value[0] = poodle_spk_func; | ||
| return 0; | ||
| } | ||
|
|
||
| static int poodle_set_spk(struct snd_kcontrol *kcontrol, | ||
| struct snd_ctl_elem_value *ucontrol) | ||
| { | ||
| struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol); | ||
|
|
||
| if (poodle_spk_func == ucontrol->value.integer.value[0]) | ||
| return 0; | ||
|
|
||
| poodle_spk_func = ucontrol->value.integer.value[0]; | ||
| poodle_ext_control(codec); | ||
| return 1; | ||
| } | ||
|
|
||
| static int poodle_amp_event(struct snd_soc_dapm_widget *w, int event) | ||
| { | ||
| if (SND_SOC_DAPM_EVENT_ON(event)) | ||
| locomo_gpio_write(&poodle_locomo_device.dev, | ||
| POODLE_LOCOMO_GPIO_AMP_ON, 0); | ||
| else | ||
| locomo_gpio_write(&poodle_locomo_device.dev, | ||
| POODLE_LOCOMO_GPIO_AMP_ON, 1); | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| /* poodle machine dapm widgets */ | ||
| static const struct snd_soc_dapm_widget wm8731_dapm_widgets[] = { | ||
| SND_SOC_DAPM_HP("Headphone Jack", NULL), | ||
| SND_SOC_DAPM_SPK("Ext Spk", poodle_amp_event), | ||
| }; | ||
|
|
||
| /* Corgi machine audio_mapnections to the codec pins */ | ||
| static const char *audio_map[][3] = { | ||
|
|
||
| /* headphone connected to LHPOUT1, RHPOUT1 */ | ||
| {"Headphone Jack", NULL, "LHPOUT"}, | ||
| {"Headphone Jack", NULL, "RHPOUT"}, | ||
|
|
||
| /* speaker connected to LOUT, ROUT */ | ||
| {"Ext Spk", NULL, "ROUT"}, | ||
| {"Ext Spk", NULL, "LOUT"}, | ||
|
|
||
| {NULL, NULL, NULL}, | ||
| }; | ||
|
|
||
| static const char *jack_function[] = {"Off", "Headphone"}; | ||
| static const char *spk_function[] = {"Off", "On"}; | ||
| static const struct soc_enum poodle_enum[] = { | ||
| SOC_ENUM_SINGLE_EXT(2, jack_function), | ||
| SOC_ENUM_SINGLE_EXT(2, spk_function), | ||
| }; | ||
|
|
||
| static const snd_kcontrol_new_t wm8731_poodle_controls[] = { | ||
| SOC_ENUM_EXT("Jack Function", poodle_enum[0], poodle_get_jack, | ||
| poodle_set_jack), | ||
| SOC_ENUM_EXT("Speaker Function", poodle_enum[1], poodle_get_spk, | ||
| poodle_set_spk), | ||
| }; | ||
|
|
||
| /* | ||
| * Logic for a wm8731 as connected on a Sharp SL-C7x0 Device | ||
| */ | ||
| static int poodle_wm8731_init(struct snd_soc_codec *codec) | ||
| { | ||
| int i, err; | ||
|
|
||
| snd_soc_dapm_set_endpoint(codec, "LLINEIN", 0); | ||
| snd_soc_dapm_set_endpoint(codec, "RLINEIN", 0); | ||
| snd_soc_dapm_set_endpoint(codec, "MICIN", 1); | ||
|
|
||
| /* Add poodle specific controls */ | ||
| for (i = 0; i < ARRAY_SIZE(wm8731_poodle_controls); i++) { | ||
| err = snd_ctl_add(codec->card, | ||
| snd_soc_cnew(&wm8731_poodle_controls[i],codec, NULL)); | ||
| if (err < 0) | ||
| return err; | ||
| } | ||
|
|
||
| /* Add poodle specific widgets */ | ||
| for (i = 0; i < ARRAY_SIZE(wm8731_dapm_widgets); i++) { | ||
| snd_soc_dapm_new_control(codec, &wm8731_dapm_widgets[i]); | ||
| } | ||
|
|
||
| /* Set up poodle 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 poodle_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 44100: | ||
| case 88200: | ||
| /* configure codec digital filters for 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, | ||
| POODLE_AUDIO_CLOCK); | ||
| break; | ||
| } | ||
| return rtd->cpu_dai->config_sysclk(rtd->cpu_dai, info, | ||
| POODLE_AUDIO_CLOCK); | ||
| } else { | ||
| /* codec is i2s master - | ||
| * only configure codec DAI clock and filters */ | ||
| return rtd->codec_dai->config_sysclk(rtd->codec_dai, info, | ||
| POODLE_AUDIO_CLOCK); | ||
| } | ||
| } | ||
|
|
||
| /* poodle digital audio interface glue - connects codec <--> CPU */ | ||
| static struct snd_soc_dai_link poodle_dai = { | ||
| .name = "WM8731", | ||
| .stream_name = "WM8731", | ||
| .cpu_dai = &pxa_i2s_dai, | ||
| .codec_dai = &wm8731_dai, | ||
| .init = poodle_wm8731_init, | ||
| .config_sysclk = poodle_config_sysclk, | ||
| }; | ||
|
|
||
| /* poodle audio machine driver */ | ||
| static struct snd_soc_machine snd_soc_machine_poodle = { | ||
| .name = "Poodle", | ||
| .dai_link = &poodle_dai, | ||
| .num_links = 1, | ||
| .ops = &poodle_ops, | ||
| }; | ||
|
|
||
| /* poodle audio private data */ | ||
| static struct wm8731_setup_data poodle_wm8731_setup = { | ||
| .i2c_address = 0x1b, | ||
| }; | ||
|
|
||
| /* poodle audio subsystem */ | ||
| static struct snd_soc_device poodle_snd_devdata = { | ||
| .machine = &snd_soc_machine_poodle, | ||
| .platform = &pxa2xx_soc_platform, | ||
| .codec_dev = &soc_codec_dev_wm8731, | ||
| .codec_data = &poodle_wm8731_setup, | ||
| }; | ||
|
|
||
| static struct platform_device *poodle_snd_device; | ||
|
|
||
| static int __init poodle_init(void) | ||
| { | ||
| int ret; | ||
|
|
||
| if (!machine_is_poodle()) | ||
| return -ENODEV; | ||
|
|
||
| locomo_gpio_set_dir(&poodle_locomo_device.dev, | ||
| POODLE_LOCOMO_GPIO_AMP_ON, 0); | ||
| /* should we mute HP at startup - burning power ?*/ | ||
| locomo_gpio_set_dir(&poodle_locomo_device.dev, | ||
| POODLE_LOCOMO_GPIO_MUTE_L, 0); | ||
| locomo_gpio_set_dir(&poodle_locomo_device.dev, | ||
| POODLE_LOCOMO_GPIO_MUTE_R, 0); | ||
|
|
||
| poodle_snd_device = platform_device_alloc("soc-audio", -1); | ||
| if (!poodle_snd_device) | ||
| return -ENOMEM; | ||
|
|
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| platform_set_drvdata(poodle_snd_device, &poodle_snd_devdata); | ||
| poodle_snd_devdata.dev = &poodle_snd_device->dev; | ||
| ret = platform_device_add(poodle_snd_device); | ||
|
|
||
| if (ret) | ||
| platform_device_put(poodle_snd_device); | ||
|
|
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| return ret; | ||
| } | ||
|
|
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| static void __exit poodle_exit(void) | ||
| { | ||
| platform_device_unregister(poodle_snd_device); | ||
| } | ||
|
|
||
| module_init(poodle_init); | ||
| module_exit(poodle_exit); | ||
|
|
||
| /* Module information */ | ||
| MODULE_AUTHOR("Richard Purdie"); | ||
| MODULE_DESCRIPTION("ALSA SoC Poodle"); | ||
| MODULE_LICENSE("GPL"); |