/* * SoC audio driver for Toradex Colibri T20 * * Copyright (C) 2012 Toradex Inc. * * 2010-11-19: Marcel Ziswiler * initial version (note: WM9715L is fully WM9712 compatible) * * Copied from tosa.c: * Copyright 2005 Wolfson Microelectronics PLC. * Copyright 2005 Openedhand Ltd. * * Authors: Liam Girdwood * Richard Purdie * * 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 #include #include #include #include #include #include #include #include #include #include /* order crucial */ #include #include "../codecs/wm9712.h" #include "tegra_asoc_utils.h" #include "tegra_pcm.h" #include "tegra20_ac97.h" #define DRV_NAME "colibri_t20-snd-wm9715l" struct colibri_t20_wm9715l { struct tegra_asoc_utils_data util_data; }; static int colibri_t20_wm9715l_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 *codec = rtd->codec; struct snd_soc_card *card = codec->card; struct colibri_t20_wm9715l *machine = snd_soc_card_get_drvdata(card); int srate, mclk; int err; srate = params_rate(params); /* AC97 clock is really fixed */ mclk = 24576000; err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk); if (err < 0) { if (!(machine->util_data.set_mclk % mclk)) mclk = machine->util_data.set_mclk; else { dev_err(card->dev, "Can't configure clocks\n"); return err; } } tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1); //DAS AC97 DAC to DAP switching already done at probe return 0; } static int tegra_spdif_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_card *card = rtd->card; struct colibri_t20_wm9715l *machine = snd_soc_card_get_drvdata(card); int srate, mclk, min_mclk; int err; srate = params_rate(params); switch (srate) { case 11025: case 22050: case 44100: case 88200: mclk = 11289600; break; case 8000: case 16000: case 32000: case 48000: case 64000: case 96000: mclk = 12288000; break; default: return -EINVAL; } min_mclk = 128 * srate; err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk); if (err < 0) { if (!(machine->util_data.set_mclk % min_mclk)) mclk = machine->util_data.set_mclk; else { dev_err(card->dev, "Can't configure clocks\n"); return err; } } tegra_asoc_utils_lock_clk_rate(&machine->util_data, 1); return 0; } static int tegra_hw_free(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct colibri_t20_wm9715l *machine = snd_soc_card_get_drvdata(rtd->card); tegra_asoc_utils_lock_clk_rate(&machine->util_data, 0); return 0; } static struct snd_soc_ops colibri_t20_wm9715l_ops = { .hw_params = colibri_t20_wm9715l_hw_params, .hw_free = tegra_hw_free, }; static struct snd_soc_ops tegra_spdif_ops = { .hw_params = tegra_spdif_hw_params, .hw_free = tegra_hw_free, }; static const struct snd_soc_dapm_widget colibri_t20_wm9715l_dapm_widgets[] = { SND_SOC_DAPM_HP("HEADPHONE", NULL), SND_SOC_DAPM_LINE("LINEIN", NULL), SND_SOC_DAPM_MIC("MIC_IN", NULL), }; /* Currently supported audio map */ static const struct snd_soc_dapm_route colibri_t20_wm9715l_audio_map[] = { /* Colibri SODIMM pin 1 (MIC_IN) Colibri Evaluation Board: Audio jack X26 bottom pink Iris: Audio header X9 pin 2 Orchid: Audio jack X11 bottom pink MIC in */ { "MIC_IN", NULL, "MIC1" }, /* Colibri SODIMM pin 5 & 7 (LINEIN_L/R) Colibri Evaluation Board: Audio jack X26 top blue Iris: Audio header X9 pin 4 & 3 MECS Tellurium: Audio jack X11 pin 1 & 2 Orchid: Audio jack X11 top blue line in */ { "LINEIN", NULL, "LINEINL" }, { "LINEIN", NULL, "LINEINR" }, /* Colibri SODIMM pin 15 & 17 (HEADPHONE_L/R) Colibri Evaluation Board: Audio jack X26 middle green Iris: Audio jack X8 MECS Tellurium: Audio jack X11 pin 4 & 5 (HEADPHONE_LF/RF) Orchid: Audio jack X11 middle green line out Protea: Audio jack X53 line out */ { "HEADPHONE", NULL, "LOUT2" }, { "HEADPHONE", NULL, "ROUT2" }, }; static int colibri_t20_wm9715l_init(struct snd_soc_pcm_runtime *rtd) { int err; struct snd_soc_codec *codec = rtd->codec; struct snd_soc_dapm_context *dapm = &codec->dapm; pr_info("%s()\n", __func__); //GPIOs /* add Colibri T20 specific widgets */ err = snd_soc_dapm_new_controls(dapm, colibri_t20_wm9715l_dapm_widgets, ARRAY_SIZE(colibri_t20_wm9715l_dapm_widgets)); if (err) return err; /* set up Colibri T20 specific audio path audio_map */ err = snd_soc_dapm_add_routes(dapm, colibri_t20_wm9715l_audio_map, ARRAY_SIZE(colibri_t20_wm9715l_audio_map)); if (err) return err; //jack detection /* connected pins */ snd_soc_dapm_enable_pin(dapm, "HPOUTL"); snd_soc_dapm_enable_pin(dapm, "HPOUTR"); snd_soc_dapm_enable_pin(dapm, "LINEINL"); snd_soc_dapm_enable_pin(dapm, "LINEINR"); snd_soc_dapm_enable_pin(dapm, "MIC1"); /* Activate Mic Bias */ snd_soc_dapm_force_enable_pin(dapm, "Mic Bias"); /* not connected pins */ snd_soc_dapm_nc_pin(dapm, "LOUT2"); snd_soc_dapm_nc_pin(dapm, "MIC2"); snd_soc_dapm_nc_pin(dapm, "MONOOUT"); snd_soc_dapm_nc_pin(dapm, "OUT3"); snd_soc_dapm_nc_pin(dapm, "PCBEEP"); snd_soc_dapm_nc_pin(dapm, "PHONE"); snd_soc_dapm_nc_pin(dapm, "ROUT2"); err = snd_soc_dapm_sync(dapm); if (err) return err; return 0; } static struct snd_soc_dai_link colibri_t20_wm9715l_dai[] = { { .name = "AC97", // .name = "AC97 HiFi", .stream_name = "AC97 HiFi", .cpu_dai_name = "tegra20-ac97-pcm", .codec_dai_name = "wm9712-hifi", .platform_name = "tegra-pcm-audio", .codec_name = "wm9712-codec", .init = colibri_t20_wm9715l_init, .ops = &colibri_t20_wm9715l_ops, }, //order { .name = "SPDIF", .stream_name = "SPDIF PCM", .codec_name = "spdif-dit.0", .platform_name = "tegra-pcm-audio", .cpu_dai_name = "tegra20-spdif", .codec_dai_name = "dit-hifi", .ops = &tegra_spdif_ops, }, #if 0 { .name = "AC97 Aux", .stream_name = "AC97 Aux", .cpu_dai_name = "tegra20-ac97-modem", .codec_dai_name = "wm9712-aux", .platform_name = "tegra-pcm-audio", .codec_name = "wm9712-codec", }, #endif }; //power management static struct snd_soc_card snd_soc_colibri_t20_wm9715l = { .name = "colibri_t20-wm9715l", .dai_link = colibri_t20_wm9715l_dai, .num_links = ARRAY_SIZE(colibri_t20_wm9715l_dai), // .suspend_post = colibri_t20_wm9715l_suspend_post, // .resume_pre = colibri_t20_wm9715l_resume_pre, }; // static struct platform_device *colibri_t20_snd_wm9715l_device; static __devinit int colibri_t20_wm9715l_driver_probe(struct platform_device *pdev) { struct snd_soc_card *card = &snd_soc_colibri_t20_wm9715l; struct colibri_t20_wm9715l *machine; int ret; pr_info("%s()\n", __func__); if (!machine_is_colibri_t20()) return -ENODEV; //make sure tegra20-ac97 is properly loaded to avoid subsequent crash machine = kzalloc(sizeof(struct colibri_t20_wm9715l), GFP_KERNEL); if (!machine) { dev_err(&pdev->dev, "Can't allocate colibri_t20_wm9715l struct\n"); return -ENOMEM; } ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev, card); if (ret) goto err_free_machine; //regulator handling //switch handling card->dev = &pdev->dev; platform_set_drvdata(pdev, card); snd_soc_card_set_drvdata(card, machine); /* explicitly instanciate AC97 codec */ colibri_t20_snd_wm9715l_device = platform_device_alloc("wm9712-codec", -1); if (!colibri_t20_snd_wm9715l_device) { dev_err(&pdev->dev, "platform_device_alloc of wm9712-codec failed (%d)\n", ret); goto err_fini_utils; } ret = platform_device_add(colibri_t20_snd_wm9715l_device); if (ret) { dev_err(&pdev->dev, "platform_device_add of wm9712-codec failed (%d)\n", ret); goto err_device_put; } ret = snd_soc_register_card(card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); goto err_device_del; } if (!card->instantiated) { ret = -ENODEV; dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); goto err_unregister_card; } return 0; err_unregister_card: snd_soc_unregister_card(card); err_device_del: platform_device_del(colibri_t20_snd_wm9715l_device); err_device_put: platform_device_put(colibri_t20_snd_wm9715l_device); err_fini_utils: tegra_asoc_utils_fini(&machine->util_data); err_free_machine: kfree(machine); return ret; } static int __devexit colibri_t20_wm9715l_driver_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); struct colibri_t20_wm9715l *machine = snd_soc_card_get_drvdata(card); snd_soc_unregister_card(card); platform_device_unregister(colibri_t20_snd_wm9715l_device); tegra_asoc_utils_fini(&machine->util_data); kfree(machine); return 0; } static struct platform_driver colibri_t20_wm9715l_driver = { .driver = { .name = DRV_NAME, .owner = THIS_MODULE, // .pm = &snd_soc_pm_ops, }, .probe = colibri_t20_wm9715l_driver_probe, .remove = __devexit_p(colibri_t20_wm9715l_driver_remove), }; static int __init colibri_t20_wm9715l_modinit(void) { return platform_driver_register(&colibri_t20_wm9715l_driver); } static void __exit colibri_t20_wm9715l_modexit(void) { platform_driver_unregister(&colibri_t20_wm9715l_driver); } module_init(colibri_t20_wm9715l_modinit); module_exit(colibri_t20_wm9715l_modexit); /* Module information */ MODULE_AUTHOR("Marcel Ziswiler "); MODULE_DESCRIPTION("ALSA SoC WM9715L on Toradex Colibri T20"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:" DRV_NAME);