From 7a1b4f6ec2379717bab198b1b4ec65c04f3b13d9 Mon Sep 17 00:00:00 2001 From: Viorel Suman Date: Thu, 20 Apr 2017 11:40:40 +0300 Subject: [PATCH] ASoC: fsl: Add machine driver for i2s xtor Add I2S XTOR machine driver. Signed-off-by: Shengjiu Wang Signed-off-by: Viorel Suman --- .../bindings/sound/imx-audio-xtor.txt | 30 ++ sound/soc/fsl/Kconfig | 11 + sound/soc/fsl/Makefile | 2 + sound/soc/fsl/imx-xtor.c | 320 ++++++++++++++++++ 4 files changed, 363 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/imx-audio-xtor.txt create mode 100644 sound/soc/fsl/imx-xtor.c diff --git a/Documentation/devicetree/bindings/sound/imx-audio-xtor.txt b/Documentation/devicetree/bindings/sound/imx-audio-xtor.txt new file mode 100644 index 000000000000..ed55891bca96 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/imx-audio-xtor.txt @@ -0,0 +1,30 @@ +Freescale i.MX audio complex with Freescale DAI transceiver. +Currently supports Freescale SAI or ESAI digital audio interface. + +Required properties: + + - compatible : "fsl,imx-audio-xtor" + + - model : The user-visible name of this sound complex + + - cpu-dai : The phandle of the i.MX DAI, currently supports + SAI or ESAI controller + +Optional properties: + + - asrc-controller : The phandle of the i.MX ASRC controller associated with DAI. + +Examples: + +sound-xtor-sai { + compatible = "fsl,imx-audio-xtor"; + model = "xtor-audio-sai"; + cpu-dai = <&sai0>; + asrc-controller = <&asrc0>; +}; + +sound-xtor-esai { + compatible = "fsl,imx-audio-xtor"; + model = "xtor-audio-esai"; + cpu-dai = <&esai0>; +}; diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 5423cc1939d4..1ec8c55e7f79 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -353,6 +353,17 @@ config SND_SOC_IMX_ES8328 Say Y if you want to add support for the ES8328 audio codec connected via SSI/I2S over either SPI or I2C. +config SND_SOC_IMX_XTOR + tristate "SoC Audio support for i.MX boards with xtor codec" + select SND_SOC_IMX_PCM_DMA + select SND_SOC_FSL_ESAI + select SND_SOC_FSL_SAI + select SND_SOC_FSL_UTILS + help + SoC Audio support for i.MX boards with xtor codec + Say Y if you want to add support for SoC audio on + an i.MX board with a xtor codec. + config SND_SOC_IMX_SGTL5000 tristate "SoC Audio support for i.MX boards with sgtl5000" depends on OF && I2C diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index 687ed7d1edcd..0d6c5edb792e 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -66,6 +66,7 @@ snd-soc-imx-sgtl5000-objs := imx-sgtl5000.o snd-soc-imx-wm8958-objs := imx-wm8958.o snd-soc-imx-wm8960-objs := imx-wm8960.o snd-soc-imx-wm8962-objs := imx-wm8962.o +snd-soc-imx-xtor-objs := imx-xtor.o snd-soc-imx-sii902x-objs := imx-sii902x.o snd-soc-imx-spdif-objs := imx-spdif.o snd-soc-imx-mc13783-objs := imx-mc13783.o @@ -84,6 +85,7 @@ obj-$(CONFIG_SND_SOC_IMX_SGTL5000) += snd-soc-imx-sgtl5000.o obj-${CONFIG_SND_SOC_IMX_WM8958} += snd-soc-imx-wm8958.o obj-$(CONFIG_SND_SOC_IMX_WM8960) += snd-soc-imx-wm8960.o obj-$(CONFIG_SND_SOC_IMX_WM8962) += snd-soc-imx-wm8962.o +obj-$(CONFIG_SND_SOC_IMX_XTOR) += snd-soc-imx-xtor.o obj-$(CONFIG_SND_SOC_IMX_RPMSG) += snd-soc-imx-rpmsg.o obj-$(CONFIG_SND_SOC_IMX_SII902X) += snd-soc-imx-sii902x.o obj-$(CONFIG_SND_SOC_IMX_SPDIF) += snd-soc-imx-spdif.o diff --git a/sound/soc/fsl/imx-xtor.c b/sound/soc/fsl/imx-xtor.c new file mode 100644 index 000000000000..0d6f92d0285d --- /dev/null +++ b/sound/soc/fsl/imx-xtor.c @@ -0,0 +1,320 @@ +/* + * Copyright (C) 2015-2016 Freescale Semiconductor, Inc. + * Copyright 2017 NXP + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "fsl_sai.h" +#include "fsl_esai.h" + +#define RX 0 +#define TX 1 + +/** + * CPU private data + * + * @sysclk_id[2]: SYSCLK ids for set_sysclk() + * @slots: number of slots supported by DAI + * + * Note: [0] for rx and [1] for tx + */ +struct cpu_priv { + u32 sysclk_id[2]; + u32 slots; +}; + +struct imx_xtor_data { + struct snd_soc_dai_link dai[3]; + struct snd_soc_card card; + struct cpu_priv cpu_priv; + bool is_stream_opened[2]; + struct platform_device *asrc_pdev; + u32 asrc_rate; + u32 asrc_format; +}; + +static int imx_xtor_startup(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + static struct snd_pcm_hw_constraint_list constraint_rates; + int ret; + static u32 support_rates[] = { 8000, 32000, 48000, 96000, 192000, }; + + constraint_rates.list = support_rates; + constraint_rates.count = ARRAY_SIZE(support_rates); + + ret = snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + &constraint_rates); + if (ret) + return ret; + + return 0; +} + +static int imx_xtor_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct imx_xtor_data *data = snd_soc_card_get_drvdata(rtd->card); + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + struct cpu_priv *cpu_priv = &data->cpu_priv; + struct device *dev = rtd->card->dev; + unsigned int fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF; + int ret, dir; + u32 freq; + + /* For playback the XTOR is slave, and for record is master */ + fmt |= tx ? SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBM_CFM; + dir = tx ? SND_SOC_CLOCK_OUT : SND_SOC_CLOCK_IN; + + /* set cpu DAI configuration */ + ret = snd_soc_dai_set_fmt(rtd->cpu_dai, fmt); + if (ret) { + dev_err(dev, "failed to set cpu dai fmt: %d\n", ret); + return ret; + } + + /* Specific configurations of DAIs starts from here */ + freq = params_rate(params) * params_width(params) * cpu_priv->slots; + ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, cpu_priv->sysclk_id[tx], + freq, dir); + if (ret) { + dev_err(dev, "failed to set cpu sysclk: %d\n", ret); + return ret; + } + + ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, cpu_priv->slots, + params_width(params)); + if (ret) { + dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret); + return ret; + } + + return 0; +} + +static int imx_xtor_hw_free(struct snd_pcm_substream *substream) +{ + return 0; +} + +static void imx_xtor_shutdown(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_card *card = rtd->card; + struct imx_xtor_data *data = snd_soc_card_get_drvdata(card); + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + + data->is_stream_opened[tx] = false; +} + +static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_card *card = rtd->card; + struct imx_xtor_data *data = snd_soc_card_get_drvdata(card); + struct snd_interval *rate; + struct snd_mask *mask; + + if (!data->asrc_pdev) + return -EINVAL; + + rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + rate->max = rate->min = data->asrc_rate; + + mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); + snd_mask_none(mask); + snd_mask_set(mask, data->asrc_format); + + return 0; +} + +static const struct snd_soc_dapm_route audio_map[] = { + /* Line out jack */ + {"CPU-Playback", NULL, "ASRC-Playback"}, + {"Playback", NULL, "CPU-Playback"},/* dai route for be and fe */ + {"ASRC-Capture", NULL, "CPU-Capture"}, + {"CPU-Capture", NULL, "Capture"}, +}; + + +static struct snd_soc_ops imx_xtor_ops = { + .startup = imx_xtor_startup, + .shutdown = imx_xtor_shutdown, + .hw_params = imx_xtor_hw_params, + .hw_free = imx_xtor_hw_free, +}; + +static struct snd_soc_ops imx_xtor_be_ops = { + .hw_params = imx_xtor_hw_params, + .hw_free = imx_xtor_hw_free, +}; + +static int imx_xtor_probe(struct platform_device *pdev) +{ + struct device_node *cpu_np, *xtor_np = NULL; + struct device_node *asrc_np = NULL; + struct platform_device *asrc_pdev = NULL; + struct platform_device *cpu_pdev; + struct imx_xtor_data *data; + int ret; + u32 width; + + cpu_np = of_parse_phandle(pdev->dev.of_node, "cpu-dai", 0); + if (!cpu_np) { + dev_err(&pdev->dev, "cpu dai phandle missing or invalid\n"); + ret = -EINVAL; + goto fail; + } + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) { + ret = -ENOMEM; + goto fail; + } + + asrc_np = of_parse_phandle(pdev->dev.of_node, "asrc-controller", 0); + if (asrc_np) { + asrc_pdev = of_find_device_by_node(asrc_np); + data->asrc_pdev = asrc_pdev; + } + + cpu_pdev = of_find_device_by_node(cpu_np); + if (!cpu_pdev) { + dev_err(&pdev->dev, "failed to find SAI platform device\n"); + ret = -EINVAL; + goto fail; + } + + if (strstr(cpu_np->name, "esai")) { + data->cpu_priv.sysclk_id[TX] = ESAI_HCKT_EXTAL; + data->cpu_priv.sysclk_id[RX] = ESAI_HCKR_EXTAL; + } else if (strstr(cpu_np->name, "sai")) { + data->cpu_priv.sysclk_id[TX] = FSL_SAI_CLK_MAST1; + data->cpu_priv.sysclk_id[RX] = FSL_SAI_CLK_MAST1; + } + data->cpu_priv.slots = 2; + + data->dai[0].name = "xtor hifi"; + data->dai[0].stream_name = "xtor hifi"; + data->dai[0].codec_dai_name = "snd-soc-dummy-dai"; + data->dai[0].codec_name = "snd-soc-dummy"; + data->dai[0].cpu_dai_name = dev_name(&cpu_pdev->dev); + data->dai[0].platform_of_node = cpu_np; + data->dai[0].ops = &imx_xtor_ops; + data->dai[0].playback_only = false; + data->dai[0].capture_only = false; + data->card.num_links = 1; + data->card.dai_link = data->dai; + + /*if there is no asrc controller, we only enable one device*/ + if (asrc_pdev) { + data->dai[1].name = "HiFi-ASRC-FE"; + data->dai[1].stream_name = "HiFi-ASRC-FE"; + data->dai[1].codec_dai_name = "snd-soc-dummy-dai"; + data->dai[1].codec_name = "snd-soc-dummy"; + data->dai[1].cpu_of_node = asrc_np; + data->dai[1].platform_of_node = asrc_np; + data->dai[1].dynamic = 1; + data->dai[1].dpcm_playback = 1; + data->dai[1].dpcm_capture = 1; + + data->dai[2].name = "HiFi-ASRC-BE"; + data->dai[2].stream_name = "HiFi-ASRC-BE"; + data->dai[2].codec_dai_name = "snd-soc-dummy-dai"; + data->dai[2].codec_name = "snd-soc-dummy"; + data->dai[2].cpu_of_node = cpu_np; + data->dai[2].platform_name = "snd-soc-dummy"; + data->dai[2].no_pcm = 1; + data->dai[2].dpcm_playback = 1; + data->dai[2].dpcm_capture = 1; + data->dai[2].ops = &imx_xtor_be_ops, + data->dai[2].be_hw_params_fixup = be_hw_params_fixup, + data->card.num_links = 3; + data->card.dai_link = &data->dai[0]; + + ret = of_property_read_u32(asrc_np, "fsl,asrc-rate", + &data->asrc_rate); + if (ret) { + dev_err(&pdev->dev, "failed to get output rate\n"); + ret = -EINVAL; + goto fail; + } + + ret = of_property_read_u32(asrc_np, "fsl,asrc-width", &width); + if (ret) { + dev_err(&pdev->dev, "failed to get output rate\n"); + ret = -EINVAL; + goto fail; + } + + if (width == 24) + data->asrc_format = SNDRV_PCM_FORMAT_S24_LE; + else + data->asrc_format = SNDRV_PCM_FORMAT_S16_LE; + } + + data->card.dapm_routes = audio_map, + data->card.num_dapm_routes = ARRAY_SIZE(audio_map), + data->card.dev = &pdev->dev; + data->card.owner = THIS_MODULE; + ret = snd_soc_of_parse_card_name(&data->card, "model"); + if (ret) + goto fail; + + platform_set_drvdata(pdev, &data->card); + snd_soc_card_set_drvdata(&data->card, data); + ret = devm_snd_soc_register_card(&pdev->dev, &data->card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); + goto fail; + } + +fail: + if (cpu_np) + of_node_put(cpu_np); + if (xtor_np) + of_node_put(xtor_np); + return ret; +} + +static const struct of_device_id imx_xtor_dt_ids[] = { + { .compatible = "fsl,imx-audio-xtor", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx_xtor_dt_ids); + +static struct platform_driver imx_xtor_driver = { + .driver = { + .name = "imx-xtor", + .owner = THIS_MODULE, + .pm = &snd_soc_pm_ops, + .of_match_table = imx_xtor_dt_ids, + }, + .probe = imx_xtor_probe, +}; +module_platform_driver(imx_xtor_driver); + +MODULE_AUTHOR("Freescale Semiconductor, Inc."); +MODULE_DESCRIPTION("Freescale i.MX Dummy audio ASoC machine driver"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:imx-xtor"); -- 2.17.1