| /* |
| * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/moduleparam.h> |
| #include <linux/timer.h> |
| #include <linux/interrupt.h> |
| #include <linux/platform_device.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/soc.h> |
| #include <sound/soc-dapm.h> |
| #include <linux/gpio.h> |
| |
| #include "../codecs/jz4740.h" |
| #include "jz4740-pcm.h" |
| #include "jz4740-i2s.h" |
| |
| |
| #define QI_LB60_SND_GPIO JZ_GPIO_PORTB(29) |
| #define QI_LB60_AMP_GPIO JZ_GPIO_PORTD(4) |
| |
| static int qi_lb60_spk_event(struct snd_soc_dapm_widget *widget, |
| struct snd_kcontrol *ctrl, int event) |
| { |
| int on = 0; |
| if (event & SND_SOC_DAPM_POST_PMU) |
| on = 1; |
| else if (event & SND_SOC_DAPM_PRE_PMD) |
| on = 0; |
| |
| gpio_set_value(QI_LB60_SND_GPIO, on); |
| gpio_set_value(QI_LB60_AMP_GPIO, on); |
| |
| return 0; |
| } |
| |
| static const struct snd_soc_dapm_widget qi_lb60_widgets[] = { |
| SND_SOC_DAPM_SPK("Speaker", qi_lb60_spk_event), |
| SND_SOC_DAPM_MIC("Mic", NULL), |
| }; |
| |
| static const struct snd_soc_dapm_route qi_lb60_routes[] = { |
| {"Mic", NULL, "MIC"}, |
| {"Speaker", NULL, "LOUT"}, |
| {"Speaker", NULL, "ROUT"}, |
| }; |
| |
| #define QI_LB60_DAIFMT (SND_SOC_DAIFMT_I2S | \ |
| SND_SOC_DAIFMT_NB_NF | \ |
| SND_SOC_DAIFMT_CBM_CFM) |
| |
| static int qi_lb60_codec_init(struct snd_soc_codec *codec) |
| { |
| int ret; |
| struct snd_soc_dai *cpu_dai = codec->socdev->card->dai_link->cpu_dai; |
| |
| snd_soc_dapm_nc_pin(codec, "LIN"); |
| snd_soc_dapm_nc_pin(codec, "RIN"); |
| |
| ret = snd_soc_dai_set_fmt(cpu_dai, QI_LB60_DAIFMT); |
| if (ret < 0) { |
| dev_err(codec->dev, "Failed to set cpu dai format: %d\n", ret); |
| return ret; |
| } |
| |
| snd_soc_dapm_new_controls(codec, qi_lb60_widgets, ARRAY_SIZE(qi_lb60_widgets)); |
| snd_soc_dapm_add_routes(codec, qi_lb60_routes, ARRAY_SIZE(qi_lb60_routes)); |
| snd_soc_dapm_sync(codec); |
| |
| return 0; |
| } |
| |
| static struct snd_soc_dai_link qi_lb60_dai = { |
| .name = "jz4740", |
| .stream_name = "jz4740", |
| .cpu_dai = &jz4740_i2s_dai, |
| .codec_dai = &jz4740_codec_dai, |
| .init = qi_lb60_codec_init, |
| }; |
| |
| static struct snd_soc_card qi_lb60 = { |
| .name = "QI LB60", |
| .dai_link = &qi_lb60_dai, |
| .num_links = 1, |
| .platform = &jz4740_soc_platform, |
| }; |
| |
| static struct snd_soc_device qi_lb60_snd_devdata = { |
| .card = &qi_lb60, |
| .codec_dev = &soc_codec_dev_jz4740_codec, |
| }; |
| |
| static struct platform_device *qi_lb60_snd_device; |
| |
| static int __init qi_lb60_init(void) |
| { |
| int ret; |
| |
| qi_lb60_snd_device = platform_device_alloc("soc-audio", -1); |
| |
| if (!qi_lb60_snd_device) |
| return -ENOMEM; |
| |
| ret = gpio_request(QI_LB60_SND_GPIO, "SND"); |
| if (ret) { |
| pr_err("qi_lb60 snd: Failed to request SND GPIO(%d): %d\n", |
| QI_LB60_SND_GPIO, ret); |
| goto err_device_put; |
| } |
| |
| ret = gpio_request(QI_LB60_AMP_GPIO, "AMP"); |
| if (ret) { |
| pr_err("qi_lb60 snd: Failed to request AMP GPIO(%d): %d\n", |
| QI_LB60_AMP_GPIO, ret); |
| goto err_gpio_free_snd; |
| } |
| |
| gpio_direction_output(QI_LB60_SND_GPIO, 0); |
| gpio_direction_output(QI_LB60_AMP_GPIO, 0); |
| |
| platform_set_drvdata(qi_lb60_snd_device, &qi_lb60_snd_devdata); |
| qi_lb60_snd_devdata.dev = &qi_lb60_snd_device->dev; |
| |
| ret = platform_device_add(qi_lb60_snd_device); |
| if (ret) { |
| pr_err("qi_lb60 snd: Failed to add snd soc device: %d\n", ret); |
| goto err_unset_pdata; |
| } |
| |
| return 0; |
| |
| err_unset_pdata: |
| platform_set_drvdata(qi_lb60_snd_device, NULL); |
| /*err_gpio_free_amp:*/ |
| gpio_free(QI_LB60_AMP_GPIO); |
| err_gpio_free_snd: |
| gpio_free(QI_LB60_SND_GPIO); |
| err_device_put: |
| platform_device_put(qi_lb60_snd_device); |
| |
| return ret; |
| } |
| module_init(qi_lb60_init); |
| |
| static void __exit qi_lb60_exit(void) |
| { |
| gpio_free(QI_LB60_AMP_GPIO); |
| gpio_free(QI_LB60_SND_GPIO); |
| platform_device_unregister(qi_lb60_snd_device); |
| } |
| module_exit(qi_lb60_exit); |
| |
| MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); |
| MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support"); |
| MODULE_LICENSE("GPL v2"); |