ASoC: fsl: Add machine driver for i2s xtor
Add I2S XTOR machine driver. Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com> Signed-off-by: Viorel Suman <viorel.suman@nxp.com>pull/10/head
Viorel Suman
Jason Liu
parent
7d355c77ce
commit
099352d8d8
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@ -0,0 +1,30 @@
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Freescale i.MX audio complex with Freescale DAI transceiver.
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Currently supports Freescale SAI or ESAI digital audio interface.
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Required properties:
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- compatible : "fsl,imx-audio-xtor"
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- model : The user-visible name of this sound complex
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- cpu-dai : The phandle of the i.MX DAI, currently supports
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SAI or ESAI controller
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Optional properties:
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- asrc-controller : The phandle of the i.MX ASRC controller associated with DAI.
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Examples:
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sound-xtor-sai {
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compatible = "fsl,imx-audio-xtor";
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model = "xtor-audio-sai";
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cpu-dai = <&sai0>;
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asrc-controller = <&asrc0>;
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};
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sound-xtor-esai {
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compatible = "fsl,imx-audio-xtor";
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model = "xtor-audio-esai";
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cpu-dai = <&esai0>;
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};
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@ -354,6 +354,17 @@ config SND_SOC_IMX_ES8328
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Say Y if you want to add support for the ES8328 audio codec connected
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via SSI/I2S over either SPI or I2C.
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config SND_SOC_IMX_XTOR
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tristate "SoC Audio support for i.MX boards with xtor codec"
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select SND_SOC_IMX_PCM_DMA
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select SND_SOC_FSL_ESAI
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select SND_SOC_FSL_SAI
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select SND_SOC_FSL_UTILS
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help
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SoC Audio support for i.MX boards with xtor codec
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Say Y if you want to add support for SoC audio on
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an i.MX board with a xtor codec.
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config SND_SOC_IMX_SGTL5000
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tristate "SoC Audio support for i.MX boards with sgtl5000"
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depends on OF && I2C
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@ -67,6 +67,7 @@ snd-soc-imx-sgtl5000-objs := imx-sgtl5000.o
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snd-soc-imx-wm8958-objs := imx-wm8958.o
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snd-soc-imx-wm8960-objs := imx-wm8960.o
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snd-soc-imx-wm8962-objs := imx-wm8962.o
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snd-soc-imx-xtor-objs := imx-xtor.o
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snd-soc-imx-sii902x-objs := imx-sii902x.o
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snd-soc-imx-spdif-objs := imx-spdif.o
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snd-soc-imx-mc13783-objs := imx-mc13783.o
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@ -85,6 +86,7 @@ obj-$(CONFIG_SND_SOC_IMX_SGTL5000) += snd-soc-imx-sgtl5000.o
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obj-${CONFIG_SND_SOC_IMX_WM8958} += snd-soc-imx-wm8958.o
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obj-$(CONFIG_SND_SOC_IMX_WM8960) += snd-soc-imx-wm8960.o
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obj-$(CONFIG_SND_SOC_IMX_WM8962) += snd-soc-imx-wm8962.o
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obj-$(CONFIG_SND_SOC_IMX_XTOR) += snd-soc-imx-xtor.o
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obj-$(CONFIG_SND_SOC_IMX_RPMSG) += snd-soc-imx-rpmsg.o
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obj-$(CONFIG_SND_SOC_IMX_SII902X) += snd-soc-imx-sii902x.o
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obj-$(CONFIG_SND_SOC_IMX_SPDIF) += snd-soc-imx-spdif.o
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@ -0,0 +1,320 @@
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/*
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* Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
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* Copyright 2017 NXP
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*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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#include <linux/module.h>
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#include <linux/of_platform.h>
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#include <linux/i2c.h>
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#include <linux/of_gpio.h>
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#include <linux/slab.h>
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#include <linux/gpio.h>
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#include <linux/clk.h>
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#include <sound/soc.h>
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#include <sound/jack.h>
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#include <sound/control.h>
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#include <sound/pcm_params.h>
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#include <sound/soc-dapm.h>
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#include <linux/pinctrl/consumer.h>
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#include "fsl_sai.h"
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#include "fsl_esai.h"
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#define RX 0
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#define TX 1
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/**
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* CPU private data
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*
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* @sysclk_id[2]: SYSCLK ids for set_sysclk()
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* @slots: number of slots supported by DAI
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*
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* Note: [0] for rx and [1] for tx
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*/
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struct cpu_priv {
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u32 sysclk_id[2];
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u32 slots;
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};
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struct imx_xtor_data {
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struct snd_soc_dai_link dai[3];
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struct snd_soc_card card;
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struct cpu_priv cpu_priv;
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bool is_stream_opened[2];
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struct platform_device *asrc_pdev;
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u32 asrc_rate;
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u32 asrc_format;
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};
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static int imx_xtor_startup(struct snd_pcm_substream *substream)
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{
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struct snd_pcm_runtime *runtime = substream->runtime;
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static struct snd_pcm_hw_constraint_list constraint_rates;
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int ret;
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static u32 support_rates[] = { 8000, 32000, 48000, 96000, 192000, };
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constraint_rates.list = support_rates;
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constraint_rates.count = ARRAY_SIZE(support_rates);
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ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
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&constraint_rates);
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if (ret)
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return ret;
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return 0;
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}
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static int imx_xtor_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 imx_xtor_data *data = snd_soc_card_get_drvdata(rtd->card);
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bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
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struct cpu_priv *cpu_priv = &data->cpu_priv;
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struct device *dev = rtd->card->dev;
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unsigned int fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF;
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int ret, dir;
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u32 freq;
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/* For playback the XTOR is slave, and for record is master */
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fmt |= tx ? SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBM_CFM;
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dir = tx ? SND_SOC_CLOCK_OUT : SND_SOC_CLOCK_IN;
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/* set cpu DAI configuration */
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ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt);
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if (ret) {
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dev_err(dev, "failed to set cpu dai fmt: %d\n", ret);
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return ret;
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}
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/* Specific configurations of DAIs starts from here */
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freq = params_rate(params) * params_width(params) * cpu_priv->slots;
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ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, cpu_priv->sysclk_id[tx],
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freq, dir);
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if (ret) {
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dev_err(dev, "failed to set cpu sysclk: %d\n", ret);
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return ret;
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}
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ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, cpu_priv->slots,
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params_width(params));
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if (ret) {
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dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret);
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return ret;
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}
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return 0;
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}
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static int imx_xtor_hw_free(struct snd_pcm_substream *substream)
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{
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return 0;
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}
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static void imx_xtor_shutdown(struct snd_pcm_substream *substream)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_card *card = rtd->card;
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struct imx_xtor_data *data = snd_soc_card_get_drvdata(card);
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bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
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data->is_stream_opened[tx] = false;
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}
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static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_card *card = rtd->card;
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struct imx_xtor_data *data = snd_soc_card_get_drvdata(card);
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struct snd_interval *rate;
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struct snd_mask *mask;
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if (!data->asrc_pdev)
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return -EINVAL;
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rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
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rate->max = rate->min = data->asrc_rate;
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mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
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snd_mask_none(mask);
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snd_mask_set(mask, data->asrc_format);
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return 0;
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}
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static const struct snd_soc_dapm_route audio_map[] = {
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/* Line out jack */
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{"CPU-Playback", NULL, "ASRC-Playback"},
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{"Playback", NULL, "CPU-Playback"},/* dai route for be and fe */
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{"ASRC-Capture", NULL, "CPU-Capture"},
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{"CPU-Capture", NULL, "Capture"},
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};
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static struct snd_soc_ops imx_xtor_ops = {
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.startup = imx_xtor_startup,
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.shutdown = imx_xtor_shutdown,
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.hw_params = imx_xtor_hw_params,
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.hw_free = imx_xtor_hw_free,
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};
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static struct snd_soc_ops imx_xtor_be_ops = {
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.hw_params = imx_xtor_hw_params,
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.hw_free = imx_xtor_hw_free,
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};
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static int imx_xtor_probe(struct platform_device *pdev)
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{
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struct device_node *cpu_np, *xtor_np = NULL;
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struct device_node *asrc_np = NULL;
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struct platform_device *asrc_pdev = NULL;
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struct platform_device *cpu_pdev;
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struct imx_xtor_data *data;
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int ret;
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u32 width;
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cpu_np = of_parse_phandle(pdev->dev.of_node, "cpu-dai", 0);
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if (!cpu_np) {
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dev_err(&pdev->dev, "cpu dai phandle missing or invalid\n");
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ret = -EINVAL;
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goto fail;
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}
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data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
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if (!data) {
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ret = -ENOMEM;
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goto fail;
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}
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asrc_np = of_parse_phandle(pdev->dev.of_node, "asrc-controller", 0);
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if (asrc_np) {
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asrc_pdev = of_find_device_by_node(asrc_np);
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data->asrc_pdev = asrc_pdev;
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}
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cpu_pdev = of_find_device_by_node(cpu_np);
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if (!cpu_pdev) {
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dev_err(&pdev->dev, "failed to find SAI platform device\n");
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ret = -EINVAL;
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goto fail;
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}
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if (strstr(cpu_np->name, "esai")) {
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data->cpu_priv.sysclk_id[TX] = ESAI_HCKT_EXTAL;
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data->cpu_priv.sysclk_id[RX] = ESAI_HCKR_EXTAL;
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} else if (strstr(cpu_np->name, "sai")) {
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data->cpu_priv.sysclk_id[TX] = FSL_SAI_CLK_MAST1;
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data->cpu_priv.sysclk_id[RX] = FSL_SAI_CLK_MAST1;
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}
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data->cpu_priv.slots = 2;
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data->dai[0].name = "xtor hifi";
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data->dai[0].stream_name = "xtor hifi";
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data->dai[0].codec_dai_name = "snd-soc-dummy-dai";
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data->dai[0].codec_name = "snd-soc-dummy";
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data->dai[0].cpu_dai_name = dev_name(&cpu_pdev->dev);
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data->dai[0].platform_of_node = cpu_np;
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data->dai[0].ops = &imx_xtor_ops;
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data->dai[0].playback_only = false;
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data->dai[0].capture_only = false;
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data->card.num_links = 1;
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data->card.dai_link = data->dai;
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/*if there is no asrc controller, we only enable one device*/
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if (asrc_pdev) {
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data->dai[1].name = "HiFi-ASRC-FE";
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data->dai[1].stream_name = "HiFi-ASRC-FE";
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data->dai[1].codec_dai_name = "snd-soc-dummy-dai";
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data->dai[1].codec_name = "snd-soc-dummy";
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data->dai[1].cpu_of_node = asrc_np;
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data->dai[1].platform_of_node = asrc_np;
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data->dai[1].dynamic = 1;
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data->dai[1].dpcm_playback = 1;
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data->dai[1].dpcm_capture = 1;
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data->dai[2].name = "HiFi-ASRC-BE";
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data->dai[2].stream_name = "HiFi-ASRC-BE";
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data->dai[2].codec_dai_name = "snd-soc-dummy-dai";
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data->dai[2].codec_name = "snd-soc-dummy";
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data->dai[2].cpu_of_node = cpu_np;
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data->dai[2].platform_name = "snd-soc-dummy";
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data->dai[2].no_pcm = 1;
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data->dai[2].dpcm_playback = 1;
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data->dai[2].dpcm_capture = 1;
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data->dai[2].ops = &imx_xtor_be_ops,
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data->dai[2].be_hw_params_fixup = be_hw_params_fixup,
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data->card.num_links = 3;
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data->card.dai_link = &data->dai[0];
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ret = of_property_read_u32(asrc_np, "fsl,asrc-rate",
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&data->asrc_rate);
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if (ret) {
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dev_err(&pdev->dev, "failed to get output rate\n");
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ret = -EINVAL;
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goto fail;
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}
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ret = of_property_read_u32(asrc_np, "fsl,asrc-width", &width);
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if (ret) {
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dev_err(&pdev->dev, "failed to get output rate\n");
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ret = -EINVAL;
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goto fail;
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}
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if (width == 24)
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data->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
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else
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data->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
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}
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data->card.dapm_routes = audio_map,
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data->card.num_dapm_routes = ARRAY_SIZE(audio_map),
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data->card.dev = &pdev->dev;
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data->card.owner = THIS_MODULE;
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ret = snd_soc_of_parse_card_name(&data->card, "model");
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if (ret)
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goto fail;
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platform_set_drvdata(pdev, &data->card);
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snd_soc_card_set_drvdata(&data->card, data);
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ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
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if (ret) {
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dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
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goto fail;
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}
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fail:
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if (cpu_np)
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of_node_put(cpu_np);
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if (xtor_np)
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of_node_put(xtor_np);
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return ret;
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}
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static const struct of_device_id imx_xtor_dt_ids[] = {
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{ .compatible = "fsl,imx-audio-xtor", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, imx_xtor_dt_ids);
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static struct platform_driver imx_xtor_driver = {
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.driver = {
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.name = "imx-xtor",
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.owner = THIS_MODULE,
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.pm = &snd_soc_pm_ops,
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.of_match_table = imx_xtor_dt_ids,
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},
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.probe = imx_xtor_probe,
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};
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module_platform_driver(imx_xtor_driver);
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MODULE_AUTHOR("Freescale Semiconductor, Inc.");
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MODULE_DESCRIPTION("Freescale i.MX Dummy audio ASoC machine driver");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:imx-xtor");
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