236 lines
5.9 KiB
C
236 lines
5.9 KiB
C
/*
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* Rockchip machine ASoC driver for boards using a DA7219 CODEC.
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*
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* Copyright (c) 2016, Rockchip Electronics Co., Ltd. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <linux/gpio.h>
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#include <linux/of_gpio.h>
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#include <linux/delay.h>
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#include <sound/core.h>
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#include <sound/jack.h>
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#include <sound/pcm.h>
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#include <sound/pcm_params.h>
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#include <sound/soc.h>
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#include "rockchip_i2s.h"
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#include "../codecs/da7219.h"
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#include "../codecs/da7219-aad.h"
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#define DRV_NAME "rockchip-snd-da7219"
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static struct snd_soc_jack mach_da7219_jack;
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static const struct snd_soc_dapm_widget rk_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphones", NULL),
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SND_SOC_DAPM_SPK("Speakers", NULL),
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SND_SOC_DAPM_MIC("Headset Mic", NULL),
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SND_SOC_DAPM_MIC("Int Mic", NULL),
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};
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static const struct snd_soc_dapm_route rk_audio_map[] = {
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/* Input Lines */
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{"MIC", NULL, "Headset Mic"},
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/* Output Lines */
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{"Headphones", NULL, "HPL"},
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{"Headphones", NULL, "HPR"},
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};
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static const struct snd_kcontrol_new rk_mc_controls[] = {
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SOC_DAPM_PIN_SWITCH("Headphones"),
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SOC_DAPM_PIN_SWITCH("Speakers"),
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SOC_DAPM_PIN_SWITCH("Headset Mic"),
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SOC_DAPM_PIN_SWITCH("Int Mic"),
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};
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static int rk_aif1_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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int mclk;
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int ret = 0;
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switch (params_rate(params)) {
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case 8000:
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case 16000:
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case 32000:
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case 48000:
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case 96000:
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mclk = 12288000;
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break;
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case 11025:
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case 22050:
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case 44100:
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mclk = 11289600;
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break;
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default:
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return -EINVAL;
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}
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ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
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SND_SOC_CLOCK_OUT);
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if (ret < 0) {
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dev_err(codec_dai->dev, "Can't set cpu clock out %d\n", ret);
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return ret;
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}
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ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
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SND_SOC_CLOCK_IN);
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if (ret < 0) {
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dev_err(codec_dai->dev, "Can't set codec clock in %d\n", ret);
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return ret;
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}
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ret = snd_soc_dai_set_pll(codec_dai, 0, DA7219_SYSCLK_MCLK, 0, 0);
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if (ret < 0) {
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dev_err(codec_dai->dev, "Can't set pll sysclk mclk %d\n", ret);
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return ret;
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}
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return ret;
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}
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static int rk_init(struct snd_soc_pcm_runtime *runtime)
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{
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struct snd_soc_card *card = runtime->card;
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struct snd_soc_dapm_context *dapm = &card->dapm;
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int ret = 0;
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card->dapm.idle_bias_off = true;
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snd_soc_dapm_enable_pin(dapm, "Headphones");
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snd_soc_dapm_enable_pin(dapm, "Speakers");
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snd_soc_dapm_enable_pin(dapm, "Headset Mic");
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snd_soc_dapm_enable_pin(dapm, "Int Mic");
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snd_soc_dapm_sync(dapm);
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/* Enable Headset and 4 Buttons Jack detection */
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ret = snd_soc_card_jack_new(card, "Headset Jack",
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SND_JACK_HEADSET |
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SND_JACK_BTN_0 | SND_JACK_BTN_1 |
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SND_JACK_BTN_2 | SND_JACK_BTN_3,
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&mach_da7219_jack, NULL, 0);
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if (ret) {
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dev_err(card->dev, "New Headset Jack failed! (%d)\n", ret);
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return ret;
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}
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da7219_aad_jack_det(runtime->codec, &mach_da7219_jack);
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return ret;
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}
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static struct snd_soc_ops rk_aif1_ops = {
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.hw_params = rk_aif1_hw_params,
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};
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static struct snd_soc_dai_link rk_dailink = {
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.name = "da7219",
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.stream_name = "da7219 PCM",
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.codec_dai_name = "da7219-hifi",
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.init = rk_init,
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.ops = &rk_aif1_ops,
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/* set da7219 as slave */
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS,
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};
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static struct snd_soc_card snd_soc_card_rk = {
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.name = "audio-da7219",
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.dai_link = &rk_dailink,
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.num_links = 1,
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.dapm_widgets = rk_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets),
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.dapm_routes = rk_audio_map,
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.num_dapm_routes = ARRAY_SIZE(rk_audio_map),
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.controls = rk_mc_controls,
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.num_controls = ARRAY_SIZE(rk_mc_controls),
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};
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static int snd_rk_mc_probe(struct platform_device *pdev)
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{
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int ret = 0;
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struct snd_soc_card *card = &snd_soc_card_rk;
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struct device_node *np = pdev->dev.of_node;
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/* register the soc card */
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card->dev = &pdev->dev;
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platform_set_drvdata(pdev, card);
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rk_dailink.codec_of_node = of_parse_phandle(np,
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"rockchip,audio-codec", 0);
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if (!rk_dailink.codec_of_node) {
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dev_err(&pdev->dev,
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"Property 'rockchip,audio-codec' missing or invalid\n");
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return -EINVAL;
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}
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rk_dailink.cpu_of_node = of_parse_phandle(np,
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"rockchip,i2s-controller", 0);
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if (!rk_dailink.cpu_of_node) {
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dev_err(&pdev->dev,
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"Property 'rockchip,i2s-controller' missing or invalid\n");
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return -EINVAL;
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}
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rk_dailink.platform_of_node = rk_dailink.cpu_of_node;
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ret = snd_soc_of_parse_card_name(card, "rockchip,model");
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if (ret) {
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dev_err(&pdev->dev,
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"snd_soc_of_parse_card_name failed %d\n", ret);
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return ret;
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}
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ret = devm_snd_soc_register_card(&pdev->dev, card);
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if (ret) {
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dev_err(&pdev->dev,
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"snd_soc_register_card failed %d\n", ret);
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return ret;
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}
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return ret;
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}
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static const struct of_device_id rockchip_da7219_of_match[] = {
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{ .compatible = "rockchip,rockchip-audio-da7219", },
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{},
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};
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static struct platform_driver snd_rk_mc_driver = {
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.probe = snd_rk_mc_probe,
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.driver = {
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.name = DRV_NAME,
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.pm = &snd_soc_pm_ops,
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.of_match_table = rockchip_da7219_of_match,
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},
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};
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module_platform_driver(snd_rk_mc_driver);
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MODULE_AUTHOR("Xing Zheng <zhengxing@rock-chips.com>");
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MODULE_DESCRIPTION("Rockchip da7219 machine ASoC driver");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:" DRV_NAME);
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MODULE_DEVICE_TABLE(of, rockchip_da7219_of_match);
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