+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0+
-//
-// wm1133-ev1.c - Audio for WM1133-EV1 on i.MX31ADS
-//
-// Copyright (c) 2010 Wolfson Microelectronics plc
-// Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
-//
-// Based on an earlier driver for the same hardware by Liam Girdwood.
-
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-#include <linux/module.h>
-#include <sound/core.h>
-#include <sound/jack.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/soc.h>
-
-#include "imx-ssi.h"
-#include "../codecs/wm8350.h"
-#include "imx-audmux.h"
-
-/* There is a silicon mic on the board optionally connected via a solder pad
- * SP1. Define this to enable it.
- */
-#undef USE_SIMIC
-
-struct _wm8350_audio {
- unsigned int channels;
- snd_pcm_format_t format;
- unsigned int rate;
- unsigned int sysclk;
- unsigned int bclkdiv;
- unsigned int clkdiv;
- unsigned int lr_rate;
-};
-
-/* in order of power consumption per rate (lowest first) */
-static const struct _wm8350_audio wm8350_audio[] = {
- /* 16bit mono modes */
- {1, SNDRV_PCM_FORMAT_S16_LE, 8000, 12288000 >> 1,
- WM8350_BCLK_DIV_48, WM8350_DACDIV_3, 16,},
-
- /* 16 bit stereo modes */
- {2, SNDRV_PCM_FORMAT_S16_LE, 8000, 12288000,
- WM8350_BCLK_DIV_48, WM8350_DACDIV_6, 32,},
- {2, SNDRV_PCM_FORMAT_S16_LE, 16000, 12288000,
- WM8350_BCLK_DIV_24, WM8350_DACDIV_3, 32,},
- {2, SNDRV_PCM_FORMAT_S16_LE, 32000, 12288000,
- WM8350_BCLK_DIV_12, WM8350_DACDIV_1_5, 32,},
- {2, SNDRV_PCM_FORMAT_S16_LE, 48000, 12288000,
- WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,},
- {2, SNDRV_PCM_FORMAT_S16_LE, 96000, 24576000,
- WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,},
- {2, SNDRV_PCM_FORMAT_S16_LE, 11025, 11289600,
- WM8350_BCLK_DIV_32, WM8350_DACDIV_4, 32,},
- {2, SNDRV_PCM_FORMAT_S16_LE, 22050, 11289600,
- WM8350_BCLK_DIV_16, WM8350_DACDIV_2, 32,},
- {2, SNDRV_PCM_FORMAT_S16_LE, 44100, 11289600,
- WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,},
- {2, SNDRV_PCM_FORMAT_S16_LE, 88200, 22579200,
- WM8350_BCLK_DIV_8, WM8350_DACDIV_1, 32,},
-
- /* 24bit stereo modes */
- {2, SNDRV_PCM_FORMAT_S24_LE, 48000, 12288000,
- WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,},
- {2, SNDRV_PCM_FORMAT_S24_LE, 96000, 24576000,
- WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,},
- {2, SNDRV_PCM_FORMAT_S24_LE, 44100, 11289600,
- WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,},
- {2, SNDRV_PCM_FORMAT_S24_LE, 88200, 22579200,
- WM8350_BCLK_DIV_4, WM8350_DACDIV_1, 64,},
-};
-
-static int wm1133_ev1_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
-{
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
- struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
- int i, found = 0;
- snd_pcm_format_t format = params_format(params);
- unsigned int rate = params_rate(params);
- unsigned int channels = params_channels(params);
-
- /* find the correct audio parameters */
- for (i = 0; i < ARRAY_SIZE(wm8350_audio); i++) {
- if (rate == wm8350_audio[i].rate &&
- format == wm8350_audio[i].format &&
- channels == wm8350_audio[i].channels) {
- found = 1;
- break;
- }
- }
- if (!found)
- return -EINVAL;
-
- /* codec FLL input is 14.75 MHz from MCLK */
- snd_soc_dai_set_pll(codec_dai, 0, 0, 14750000, wm8350_audio[i].sysclk);
-
- /* TODO: The SSI driver should figure this out for us */
- switch (channels) {
- case 2:
- snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 0);
- break;
- case 1:
- snd_soc_dai_set_tdm_slot(cpu_dai, 0x1, 0x1, 1, 0);
- break;
- default:
- return -EINVAL;
- }
-
- /* set MCLK as the codec system clock for DAC and ADC */
- snd_soc_dai_set_sysclk(codec_dai, WM8350_MCLK_SEL_PLL_MCLK,
- wm8350_audio[i].sysclk, SND_SOC_CLOCK_IN);
-
- /* set codec BCLK division for sample rate */
- snd_soc_dai_set_clkdiv(codec_dai, WM8350_BCLK_CLKDIV,
- wm8350_audio[i].bclkdiv);
-
- /* DAI is synchronous and clocked with DAC LRCLK & ADC LRC */
- snd_soc_dai_set_clkdiv(codec_dai,
- WM8350_DACLR_CLKDIV, wm8350_audio[i].lr_rate);
- snd_soc_dai_set_clkdiv(codec_dai,
- WM8350_ADCLR_CLKDIV, wm8350_audio[i].lr_rate);
-
- /* now configure DAC and ADC clocks */
- snd_soc_dai_set_clkdiv(codec_dai,
- WM8350_DAC_CLKDIV, wm8350_audio[i].clkdiv);
-
- snd_soc_dai_set_clkdiv(codec_dai,
- WM8350_ADC_CLKDIV, wm8350_audio[i].clkdiv);
-
- return 0;
-}
-
-static const struct snd_soc_ops wm1133_ev1_ops = {
- .hw_params = wm1133_ev1_hw_params,
-};
-
-static const struct snd_soc_dapm_widget wm1133_ev1_widgets[] = {
-#ifdef USE_SIMIC
- SND_SOC_DAPM_MIC("SiMIC", NULL),
-#endif
- SND_SOC_DAPM_MIC("Mic1 Jack", NULL),
- SND_SOC_DAPM_MIC("Mic2 Jack", NULL),
- SND_SOC_DAPM_LINE("Line In Jack", NULL),
- SND_SOC_DAPM_LINE("Line Out Jack", NULL),
- SND_SOC_DAPM_HP("Headphone Jack", NULL),
-};
-
-/* imx32ads soc_card audio map */
-static const struct snd_soc_dapm_route wm1133_ev1_map[] = {
-
-#ifdef USE_SIMIC
- /* SiMIC --> IN1LN (with automatic bias) via SP1 */
- { "IN1LN", NULL, "Mic Bias" },
- { "Mic Bias", NULL, "SiMIC" },
-#endif
-
- /* Mic 1 Jack --> IN1LN and IN1LP (with automatic bias) */
- { "IN1LN", NULL, "Mic Bias" },
- { "IN1LP", NULL, "Mic1 Jack" },
- { "Mic Bias", NULL, "Mic1 Jack" },
-
- /* Mic 2 Jack --> IN1RN and IN1RP (with automatic bias) */
- { "IN1RN", NULL, "Mic Bias" },
- { "IN1RP", NULL, "Mic2 Jack" },
- { "Mic Bias", NULL, "Mic2 Jack" },
-
- /* Line in Jack --> AUX (L+R) */
- { "IN3R", NULL, "Line In Jack" },
- { "IN3L", NULL, "Line In Jack" },
-
- /* Out1 --> Headphone Jack */
- { "Headphone Jack", NULL, "OUT1R" },
- { "Headphone Jack", NULL, "OUT1L" },
-
- /* Out1 --> Line Out Jack */
- { "Line Out Jack", NULL, "OUT2R" },
- { "Line Out Jack", NULL, "OUT2L" },
-};
-
-static struct snd_soc_jack hp_jack;
-
-static struct snd_soc_jack_pin hp_jack_pins[] = {
- { .pin = "Headphone Jack", .mask = SND_JACK_HEADPHONE },
-};
-
-static struct snd_soc_jack mic_jack;
-
-static struct snd_soc_jack_pin mic_jack_pins[] = {
- { .pin = "Mic1 Jack", .mask = SND_JACK_MICROPHONE },
- { .pin = "Mic2 Jack", .mask = SND_JACK_MICROPHONE },
-};
-
-static int wm1133_ev1_init(struct snd_soc_pcm_runtime *rtd)
-{
- struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
-
- /* Headphone jack detection */
- snd_soc_card_jack_new(rtd->card, "Headphone", SND_JACK_HEADPHONE,
- &hp_jack, hp_jack_pins, ARRAY_SIZE(hp_jack_pins));
- wm8350_hp_jack_detect(component, WM8350_JDR, &hp_jack, SND_JACK_HEADPHONE);
-
- /* Microphone jack detection */
- snd_soc_card_jack_new(rtd->card, "Microphone",
- SND_JACK_MICROPHONE | SND_JACK_BTN_0, &mic_jack,
- mic_jack_pins, ARRAY_SIZE(mic_jack_pins));
- wm8350_mic_jack_detect(component, &mic_jack, SND_JACK_MICROPHONE,
- SND_JACK_BTN_0);
-
- snd_soc_dapm_force_enable_pin(&rtd->card->dapm, "Mic Bias");
-
- return 0;
-}
-
-
-SND_SOC_DAILINK_DEFS(ev1,
- DAILINK_COMP_ARRAY(COMP_CPU("imx-ssi.0")),
- DAILINK_COMP_ARRAY(COMP_CODEC("wm8350-codec.0-0x1a", "wm8350-hifi")),
- DAILINK_COMP_ARRAY(COMP_PLATFORM("imx-ssi.0")));
-
-static struct snd_soc_dai_link wm1133_ev1_dai = {
- .name = "WM1133-EV1",
- .stream_name = "Audio",
- .init = wm1133_ev1_init,
- .ops = &wm1133_ev1_ops,
- .symmetric_rates = 1,
- .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
- SND_SOC_DAIFMT_CBM_CFM,
- SND_SOC_DAILINK_REG(ev1),
-};
-
-static struct snd_soc_card wm1133_ev1 = {
- .name = "WM1133-EV1",
- .owner = THIS_MODULE,
- .dai_link = &wm1133_ev1_dai,
- .num_links = 1,
-
- .dapm_widgets = wm1133_ev1_widgets,
- .num_dapm_widgets = ARRAY_SIZE(wm1133_ev1_widgets),
- .dapm_routes = wm1133_ev1_map,
- .num_dapm_routes = ARRAY_SIZE(wm1133_ev1_map),
-};
-
-static struct platform_device *wm1133_ev1_snd_device;
-
-static int __init wm1133_ev1_audio_init(void)
-{
- int ret;
- unsigned int ptcr, pdcr;
-
- /* SSI0 mastered by port 5 */
- ptcr = IMX_AUDMUX_V2_PTCR_SYN |
- IMX_AUDMUX_V2_PTCR_TFSDIR |
- IMX_AUDMUX_V2_PTCR_TFSEL(MX31_AUDMUX_PORT5_SSI_PINS_5) |
- IMX_AUDMUX_V2_PTCR_TCLKDIR |
- IMX_AUDMUX_V2_PTCR_TCSEL(MX31_AUDMUX_PORT5_SSI_PINS_5);
- pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT5_SSI_PINS_5);
- imx_audmux_v2_configure_port(MX31_AUDMUX_PORT1_SSI0, ptcr, pdcr);
-
- ptcr = IMX_AUDMUX_V2_PTCR_SYN;
- pdcr = IMX_AUDMUX_V2_PDCR_RXDSEL(MX31_AUDMUX_PORT1_SSI0);
- imx_audmux_v2_configure_port(MX31_AUDMUX_PORT5_SSI_PINS_5, ptcr, pdcr);
-
- wm1133_ev1_snd_device = platform_device_alloc("soc-audio", -1);
- if (!wm1133_ev1_snd_device)
- return -ENOMEM;
-
- platform_set_drvdata(wm1133_ev1_snd_device, &wm1133_ev1);
- ret = platform_device_add(wm1133_ev1_snd_device);
-
- if (ret)
- platform_device_put(wm1133_ev1_snd_device);
-
- return ret;
-}
-module_init(wm1133_ev1_audio_init);
-
-static void __exit wm1133_ev1_audio_exit(void)
-{
- platform_device_unregister(wm1133_ev1_snd_device);
-}
-module_exit(wm1133_ev1_audio_exit);
-
-MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
-MODULE_DESCRIPTION("Audio for WM1133-EV1 on i.MX31ADS");
-MODULE_LICENSE("GPL");
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