/* * mx27vis-aic32x4.c * * Copyright 2011 Vista Silicon S.L. * * Author: Javier Martin * * 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. * * 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., 51 Franklin Street, Fifth Floor, Boston, * MA 02110-1301, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include "../codecs/tlv320aic32x4.h" #include "imx-ssi.h" #define MX27VIS_AMP_GAIN 0 #define MX27VIS_AMP_MUTE 1 #define MX27VIS_PIN_G0 (GPIO_PORTF + 9) #define MX27VIS_PIN_G1 (GPIO_PORTF + 8) #define MX27VIS_PIN_SDL (GPIO_PORTE + 5) #define MX27VIS_PIN_SDR (GPIO_PORTF + 7) static int mx27vis_amp_gain; static int mx27vis_amp_mute; static const int mx27vis_amp_pins[] = { MX27VIS_PIN_G0 | GPIO_GPIO | GPIO_OUT, MX27VIS_PIN_G1 | GPIO_GPIO | GPIO_OUT, MX27VIS_PIN_SDL | GPIO_GPIO | GPIO_OUT, MX27VIS_PIN_SDR | GPIO_GPIO | GPIO_OUT, }; static int mx27vis_aic32x4_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_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; int ret; u32 dai_format; dai_format = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBM_CFM; /* set codec DAI configuration */ snd_soc_dai_set_fmt(codec_dai, dai_format); /* set cpu DAI configuration */ snd_soc_dai_set_fmt(cpu_dai, dai_format); ret = snd_soc_dai_set_sysclk(codec_dai, 0, 25000000, SND_SOC_CLOCK_OUT); if (ret) { pr_err("%s: failed setting codec sysclk\n", __func__); return ret; } ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0, SND_SOC_CLOCK_IN); if (ret) { pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n"); return ret; } return 0; } static struct snd_soc_ops mx27vis_aic32x4_snd_ops = { .hw_params = mx27vis_aic32x4_hw_params, }; static int mx27vis_amp_set(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; int value = ucontrol->value.integer.value[0]; unsigned int reg = mc->reg; int max = mc->max; if (value > max) return -EINVAL; switch (reg) { case MX27VIS_AMP_GAIN: gpio_set_value(MX27VIS_PIN_G0, value & 1); gpio_set_value(MX27VIS_PIN_G1, value >> 1); mx27vis_amp_gain = value; break; case MX27VIS_AMP_MUTE: gpio_set_value(MX27VIS_PIN_SDL, value & 1); gpio_set_value(MX27VIS_PIN_SDR, value >> 1); mx27vis_amp_mute = value; break; } return 0; } static int mx27vis_amp_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct soc_mixer_control *mc = (struct soc_mixer_control *)kcontrol->private_value; unsigned int reg = mc->reg; switch (reg) { case MX27VIS_AMP_GAIN: ucontrol->value.integer.value[0] = mx27vis_amp_gain; break; case MX27VIS_AMP_MUTE: ucontrol->value.integer.value[0] = mx27vis_amp_mute; break; } return 0; } /* From 6dB to 24dB in steps of 6dB */ static const DECLARE_TLV_DB_SCALE(mx27vis_amp_tlv, 600, 600, 0); static const struct snd_kcontrol_new mx27vis_aic32x4_controls[] = { SOC_DAPM_PIN_SWITCH("External Mic"), SOC_SINGLE_EXT_TLV("LO Ext Boost", MX27VIS_AMP_GAIN, 0, 3, 0, mx27vis_amp_get, mx27vis_amp_set, mx27vis_amp_tlv), SOC_DOUBLE_EXT("LO Ext Mute Switch", MX27VIS_AMP_MUTE, 0, 1, 1, 0, mx27vis_amp_get, mx27vis_amp_set), }; static const struct snd_soc_dapm_widget aic32x4_dapm_widgets[] = { SND_SOC_DAPM_MIC("External Mic", NULL), }; static const struct snd_soc_dapm_route aic32x4_dapm_routes[] = { {"Mic Bias", NULL, "External Mic"}, {"IN1_R", NULL, "Mic Bias"}, {"IN2_R", NULL, "Mic Bias"}, {"IN3_R", NULL, "Mic Bias"}, {"IN1_L", NULL, "Mic Bias"}, {"IN2_L", NULL, "Mic Bias"}, {"IN3_L", NULL, "Mic Bias"}, }; static struct snd_soc_dai_link mx27vis_aic32x4_dai = { .name = "tlv320aic32x4", .stream_name = "TLV320AIC32X4", .codec_dai_name = "tlv320aic32x4-hifi", .platform_name = "imx-pcm-audio.0", .codec_name = "tlv320aic32x4.0-0018", .cpu_dai_name = "imx-ssi.0", .ops = &mx27vis_aic32x4_snd_ops, }; static struct snd_soc_card mx27vis_aic32x4 = { .name = "visstrim_m10-audio", .owner = THIS_MODULE, .dai_link = &mx27vis_aic32x4_dai, .num_links = 1, .controls = mx27vis_aic32x4_controls, .num_controls = ARRAY_SIZE(mx27vis_aic32x4_controls), .dapm_widgets = aic32x4_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(aic32x4_dapm_widgets), .dapm_routes = aic32x4_dapm_routes, .num_dapm_routes = ARRAY_SIZE(aic32x4_dapm_routes), }; static struct platform_device *mx27vis_aic32x4_snd_device; static int __init mx27vis_aic32x4_init(void) { int ret; mx27vis_aic32x4_snd_device = platform_device_alloc("soc-audio", -1); if (!mx27vis_aic32x4_snd_device) return -ENOMEM; platform_set_drvdata(mx27vis_aic32x4_snd_device, &mx27vis_aic32x4); ret = platform_device_add(mx27vis_aic32x4_snd_device); if (ret) { printk(KERN_ERR "ASoC: Platform device allocation failed\n"); platform_device_put(mx27vis_aic32x4_snd_device); } /* Connect SSI0 as clock slave to SSI1 external pins */ mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0, MXC_AUDMUX_V1_PCR_SYN | MXC_AUDMUX_V1_PCR_TFSDIR | MXC_AUDMUX_V1_PCR_TCLKDIR | MXC_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) | MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_PPCR1_SSI_PINS_1) ); mxc_audmux_v1_configure_port(MX27_AUDMUX_PPCR1_SSI_PINS_1, MXC_AUDMUX_V1_PCR_SYN | MXC_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0) ); ret = mxc_gpio_setup_multiple_pins(mx27vis_amp_pins, ARRAY_SIZE(mx27vis_amp_pins), "MX27VIS_AMP"); if (ret) { printk(KERN_ERR "ASoC: unable to setup gpios\n"); platform_device_put(mx27vis_aic32x4_snd_device); } return ret; } static void __exit mx27vis_aic32x4_exit(void) { platform_device_unregister(mx27vis_aic32x4_snd_device); } module_init(mx27vis_aic32x4_init); module_exit(mx27vis_aic32x4_exit); MODULE_AUTHOR("Javier Martin "); MODULE_DESCRIPTION("ALSA SoC AIC32X4 mx27 visstrim"); MODULE_LICENSE("GPL");