/* * Handles the Mitac mioa701 SoC system * * Copyright (C) 2008 Robert Jarzmik * * 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 in version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * This is a little schema of the sound interconnections : * * Sagem X200 Wolfson WM9713 * +--------+ +-------------------+ Rear Speaker * | | | | /-+ * | +--->----->---+MONOIN SPKL+--->----+-+ | * | GSM | | | | | | * | +--->----->---+PCBEEP SPKR+--->----+-+ | * | CHIP | | | \-+ * | +---<-----<---+MONO | * | | | | Front Speaker * +--------+ | | /-+ * | HPL+--->----+-+ | * | | | | | * | OUT3+--->----+-+ | * | | \-+ * | | * | | Front Micro * | | + * | MIC1+-----<--+o+ * | | + * +-------------------+ --- */ #include #include #include #include #include #include #include #include #include #include #include "../codecs/wm9713.h" #define AC97_GPIO_PULL 0x58 /* Use GPIO8 for rear speaker amplifier */ static int rear_amp_power(struct snd_soc_codec *codec, int power) { unsigned short reg; if (power) { reg = snd_soc_read(codec, AC97_GPIO_CFG); snd_soc_write(codec, AC97_GPIO_CFG, reg | 0x0100); reg = snd_soc_read(codec, AC97_GPIO_PULL); snd_soc_write(codec, AC97_GPIO_PULL, reg | (1<<15)); } else { reg = snd_soc_read(codec, AC97_GPIO_CFG); snd_soc_write(codec, AC97_GPIO_CFG, reg & ~0x0100); reg = snd_soc_read(codec, AC97_GPIO_PULL); snd_soc_write(codec, AC97_GPIO_PULL, reg & ~(1<<15)); } return 0; } static int rear_amp_event(struct snd_soc_dapm_widget *widget, struct snd_kcontrol *kctl, int event) { struct snd_soc_card *card = widget->dapm->card; struct snd_soc_pcm_runtime *rtd; struct snd_soc_codec *codec; rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name); codec = rtd->codec; return rear_amp_power(codec, SND_SOC_DAPM_EVENT_ON(event)); } /* mioa701 machine dapm widgets */ static const struct snd_soc_dapm_widget mioa701_dapm_widgets[] = { SND_SOC_DAPM_SPK("Front Speaker", NULL), SND_SOC_DAPM_SPK("Rear Speaker", rear_amp_event), SND_SOC_DAPM_MIC("Headset", NULL), SND_SOC_DAPM_LINE("GSM Line Out", NULL), SND_SOC_DAPM_LINE("GSM Line In", NULL), SND_SOC_DAPM_MIC("Headset Mic", NULL), SND_SOC_DAPM_MIC("Front Mic", NULL), }; static const struct snd_soc_dapm_route audio_map[] = { /* Call Mic */ {"Mic Bias", NULL, "Front Mic"}, {"MIC1", NULL, "Mic Bias"}, /* Headset Mic */ {"LINEL", NULL, "Headset Mic"}, {"LINER", NULL, "Headset Mic"}, /* GSM Module */ {"MONOIN", NULL, "GSM Line Out"}, {"PCBEEP", NULL, "GSM Line Out"}, {"GSM Line In", NULL, "MONO"}, /* headphone connected to HPL, HPR */ {"Headset", NULL, "HPL"}, {"Headset", NULL, "HPR"}, /* front speaker connected to HPL, OUT3 */ {"Front Speaker", NULL, "HPL"}, {"Front Speaker", NULL, "OUT3"}, /* rear speaker connected to SPKL, SPKR */ {"Rear Speaker", NULL, "SPKL"}, {"Rear Speaker", NULL, "SPKR"}, }; static int mioa701_wm9713_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; /* Prepare GPIO8 for rear speaker amplifier */ snd_soc_update_bits(codec, AC97_GPIO_CFG, 0x100, 0x100); /* Prepare MIC input */ snd_soc_update_bits(codec, AC97_3D_CONTROL, 0xc000, 0xc000); return 0; } static struct snd_soc_ops mioa701_ops; static struct snd_soc_dai_link mioa701_dai[] = { { .name = "AC97", .stream_name = "AC97 HiFi", .cpu_dai_name = "pxa2xx-ac97", .codec_dai_name = "wm9713-hifi", .codec_name = "wm9713-codec", .init = mioa701_wm9713_init, .platform_name = "pxa-pcm-audio", .ops = &mioa701_ops, }, { .name = "AC97 Aux", .stream_name = "AC97 Aux", .cpu_dai_name = "pxa2xx-ac97-aux", .codec_dai_name = "wm9713-aux", .codec_name = "wm9713-codec", .platform_name = "pxa-pcm-audio", .ops = &mioa701_ops, }, }; static struct snd_soc_card mioa701 = { .name = "MioA701", .owner = THIS_MODULE, .dai_link = mioa701_dai, .num_links = ARRAY_SIZE(mioa701_dai), .dapm_widgets = mioa701_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(mioa701_dapm_widgets), .dapm_routes = audio_map, .num_dapm_routes = ARRAY_SIZE(audio_map), }; static int mioa701_wm9713_probe(struct platform_device *pdev) { int rc; if (!machine_is_mioa701()) return -ENODEV; mioa701.dev = &pdev->dev; rc = devm_snd_soc_register_card(&pdev->dev, &mioa701); if (!rc) dev_warn(&pdev->dev, "Be warned that incorrect mixers/muxes setup will " "lead to overheating and possible destruction of your device." " Do not use without a good knowledge of mio's board design!\n"); return rc; } static struct platform_driver mioa701_wm9713_driver = { .probe = mioa701_wm9713_probe, .driver = { .name = "mioa701-wm9713", .pm = &snd_soc_pm_ops, }, }; module_platform_driver(mioa701_wm9713_driver); /* Module information */ MODULE_AUTHOR("Robert Jarzmik (rjarzmik@free.fr)"); MODULE_DESCRIPTION("ALSA SoC WM9713 MIO A701"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:mioa701-wm9713");