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Wang" , Daniel Baluta , Cosmin Samoila Subject: [PATCH v3 3/4] ASoC: fsl: Add Audio Mixer machine driver Thread-Topic: [PATCH v3 3/4] ASoC: fsl: Add Audio Mixer machine driver Thread-Index: AQHUrmKrl15PTQw+bkiMN6LAHSdTmQ== Date: Thu, 17 Jan 2019 12:46:30 +0000 Message-ID: <1547729177-14317-4-git-send-email-viorel.suman@nxp.com> References: <1547729177-14317-1-git-send-email-viorel.suman@nxp.com> In-Reply-To: <1547729177-14317-1-git-send-email-viorel.suman@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: AM6PR05CA0036.eurprd05.prod.outlook.com (2603:10a6:20b:2e::49) To DB7PR04MB4699.eurprd04.prod.outlook.com (2603:10a6:10:14::28) authentication-results: spf=none (sender IP is ) smtp.mailfrom=viorel.suman@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.7.4 x-originating-ip: [95.76.156.53] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; DB7PR04MB4251; 6:VKgbMsz/9Cfd+0fKWBSAmra+zdcU3igCaPsPhQk340mgzLA7u5njGI3ly1FiWiefkjQ0tytT2hFBZrkb4e83EKpTBzPrps64wzdrJd+bZOCurBjZl5/lu5p9JPQSkETFekVtQOBubKqgOnbIbQxYXDA0x9GQMSj67de0iiBpXnRUog9y/a45qeqH7JbPENjzSGQQEeWiIcKcxPFVNwlfRUL+Mu09HxUrBpATeJCoXyTEQuKfC13RzzCCPHfjqEXDX6rSvlZsFEKl7u+HX5LBrT5Oi8znGvWho+nVzXenRw1+MQ/e3hLNq8acdYK7EfyEzq5e4tMnRnD5XihAJRDOVbcIcxUe0+5Gk+Fy83INbcNiDdXt+b3NxJ0gulYSnNpaPPGiZ4GQiJQGLjO3RwFY77s+p7THpFXPWOUY8/YT932LU+M8LdhMQXSaBsMI6dzLMMOdzKVy76+aiaHR7TP2EA==; 5:v/CuWIpLgI/WwFAfYPo0XEdvrsI72xlZoQp+l/OT3M+qSvCPbQtgqBkl5IyttF1k5HumlBe7dl00sxnjgsaE/LQPkzOJK5kH/JuuNyT7MRHa4RF160wXCLlaxr4uXxvdRglAqHR37Isn0bT9aC+IHZ7fbyu821VahBn9DIVO7ahlxn16MEs9sg0U+OGleYjsDY4aQa5cHiUWm+l1NfRZ5w==; 7:1993cZSWYPwUI4Cf1+ipBtyvvPD+cVrZ0XhhD+vrGFPj3VcQJ3qu9HY8JxTSZnK50t3LJi0WQnzMImb62a54vUeYqjsEr+4yUDlsRj9185rIXpTMBSRN64EbjSqSejO5NEd7Y2GSXtjoWZoTWCo7vg== x-ms-office365-filtering-correlation-id: d05d223e-471a-4d45-332c-08d67c79cde2 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0; PCL:0; RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600109)(711020)(4618075)(2017052603328)(7153060)(7193020); SRVR:DB7PR04MB4251; x-ms-traffictypediagnostic: DB7PR04MB4251: x-microsoft-antispam-prvs: x-forefront-prvs: 0920602B08 x-forefront-antispam-report: SFV:NSPM; SFS:(10009020)(136003)(39860400002)(376002)(346002)(396003)(366004)(189003)(199004)(305945005)(76176011)(6116002)(3846002)(14454004)(6512007)(6436002)(6486002)(7736002)(71200400001)(52116002)(6636002)(6506007)(966005)(6306002)(386003)(86362001)(316002)(478600001)(71190400001)(54906003)(110136005)(106356001)(97736004)(105586002)(446003)(53936002)(66066001)(476003)(2906002)(4326008)(486006)(11346002)(256004)(99286004)(81166006)(30864003)(39060400002)(8676002)(2616005)(186003)(102836004)(26005)(44832011)(25786009)(5660300001)(7416002)(81156014)(8936002)(50226002)(68736007)(36756003)(921003)(1121003); DIR:OUT; SFP:1101; SCL:1; SRVR:DB7PR04MB4251; H:DB7PR04MB4699.eurprd04.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: hWxY8pcfra2vSanrBmLpqmJMwzLG08YJwUNaDt4i2HaHmyt1bxVMCXiY55avtXUXiVKi2j10ZplZxavFHq5VoZvnTrmC4b/4CPzRkxTsdw1/zAngxDmaRWZBbI0sP4t5GinpYZN/g+SVi4QzbzMLgO6OYK7ZiOJUDL1MQB9JkZRrEONZJip79BQPrvkG8YrJUdxO5V1cNQW0D2vGMUjtowQ5hkE/cONVr2rpll3Wnt9I1l1kNsGFFaRL3zep/idevmHWSs5vlOpfN0KWEdF164brMxVkniGQQVjsd0wls7MmDhRLSCs7Ufy27QGeLhX2rpacAfqYh5yFLexDcRnpcRPdfNCK6aev/kxqO16DnwVTjRzdMKMESf+A3Zu/k8cT8gIjc5vm6dK6B4CmxechOzGBNsNDfUOCi0MR8ZdvGh0= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: d05d223e-471a-4d45-332c-08d67c79cde2 X-MS-Exchange-CrossTenant-originalarrivaltime: 17 Jan 2019 12:46:29.4044 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB7PR04MB4251 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "devicetree@vger.kernel.org" , "alsa-devel@alsa-project.org" , "linux-kernel@vger.kernel.org" , Viorel Suman , dl-linux-imx , "linuxppc-dev@lists.ozlabs.org" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" This patch implements Audio Mixer machine driver for NXP iMX8 SOCs. It connects together Audio Mixer and related SAI instances. Signed-off-by: Viorel Suman --- sound/soc/fsl/Kconfig | 9 ++ sound/soc/fsl/Makefile | 2 + sound/soc/fsl/imx-audmix.c | 334 +++++++++++++++++++++++++++++++++++++++++= ++++ 3 files changed, 345 insertions(+) create mode 100644 sound/soc/fsl/imx-audmix.c diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig index 0af2e056..d87c842 100644 --- a/sound/soc/fsl/Kconfig +++ b/sound/soc/fsl/Kconfig @@ -303,6 +303,15 @@ config SND_SOC_FSL_ASOC_CARD CS4271, CS4272 and SGTL5000. Say Y if you want to add support for Freescale Generic ASoC Sound Card. =20 +config SND_SOC_IMX_AUDMIX + tristate "SoC Audio support for i.MX boards with AUDMIX" + select SND_SOC_FSL_AUDMIX + select SND_SOC_FSL_SAI + help + SoC Audio support for i.MX boards with Audio Mixer + Say Y if you want to add support for SoC audio on an i.MX board with + an Audio Mixer. + endif # SND_IMX_SOC =20 endmenu diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile index 4172d5a..c0dd044 100644 --- a/sound/soc/fsl/Makefile +++ b/sound/soc/fsl/Makefile @@ -62,6 +62,7 @@ snd-soc-imx-es8328-objs :=3D imx-es8328.o snd-soc-imx-sgtl5000-objs :=3D imx-sgtl5000.o snd-soc-imx-spdif-objs :=3D imx-spdif.o snd-soc-imx-mc13783-objs :=3D imx-mc13783.o +snd-soc-imx-audmix-objs :=3D imx-audmix.o =20 obj-$(CONFIG_SND_SOC_EUKREA_TLV320) +=3D snd-soc-eukrea-tlv320.o obj-$(CONFIG_SND_SOC_PHYCORE_AC97) +=3D snd-soc-phycore-ac97.o @@ -71,3 +72,4 @@ obj-$(CONFIG_SND_SOC_IMX_ES8328) +=3D snd-soc-imx-es8328.= o obj-$(CONFIG_SND_SOC_IMX_SGTL5000) +=3D snd-soc-imx-sgtl5000.o obj-$(CONFIG_SND_SOC_IMX_SPDIF) +=3D snd-soc-imx-spdif.o obj-$(CONFIG_SND_SOC_IMX_MC13783) +=3D snd-soc-imx-mc13783.o +obj-$(CONFIG_SND_SOC_IMX_AUDMIX) +=3D snd-soc-imx-audmix.o diff --git a/sound/soc/fsl/imx-audmix.c b/sound/soc/fsl/imx-audmix.c new file mode 100644 index 0000000..30396e4 --- /dev/null +++ b/sound/soc/fsl/imx-audmix.c @@ -0,0 +1,334 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * 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 "fsl_sai.h" +#include "fsl_audmix.h" + +struct imx_audmix { + struct platform_device *pdev; + struct snd_soc_card card; + struct platform_device *audmix_pdev; + struct platform_device *out_pdev; + struct clk *cpu_mclk; + int num_dai; + struct snd_soc_dai_link *dai; + int num_dai_conf; + struct snd_soc_codec_conf *dai_conf; + int num_dapm_routes; + struct snd_soc_dapm_route *dapm_routes; +}; + +static const u32 imx_audmix_rates[] =3D { + 8000, 12000, 16000, 24000, 32000, 48000, 64000, 96000, +}; + +static const struct snd_pcm_hw_constraint_list imx_audmix_rate_constraints= =3D { + .count =3D ARRAY_SIZE(imx_audmix_rates), + .list =3D imx_audmix_rates, +}; + +static int imx_audmix_fe_startup(struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd =3D substream->private_data; + struct imx_audmix *priv =3D snd_soc_card_get_drvdata(rtd->card); + struct snd_pcm_runtime *runtime =3D substream->runtime; + struct device *dev =3D rtd->card->dev; + unsigned long clk_rate =3D clk_get_rate(priv->cpu_mclk); + int ret; + + if (clk_rate % 24576000 =3D=3D 0) { + ret =3D snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &imx_audmix_rate_constraints); + if (ret < 0) + return ret; + } else { + dev_warn(dev, "mclk may be not supported %lu\n", clk_rate); + } + + ret =3D snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS= , + 1, 8); + if (ret < 0) + return ret; + + return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT, + FSL_AUDMIX_FORMATS); +} + +static int imx_audmix_fe_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd =3D substream->private_data; + struct device *dev =3D rtd->card->dev; + bool tx =3D substream->stream =3D=3D SNDRV_PCM_STREAM_PLAYBACK; + unsigned int fmt =3D SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF; + u32 channels =3D params_channels(params); + int ret, dir; + + /* For playback the AUDMIX is slave, and for record is master */ + fmt |=3D tx ? SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBM_CFM; + dir =3D tx ? SND_SOC_CLOCK_OUT : SND_SOC_CLOCK_IN; + + /* set DAI configuration */ + ret =3D 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; + } + + ret =3D snd_soc_dai_set_sysclk(rtd->cpu_dai, FSL_SAI_CLK_MAST1, 0, dir); + if (ret) { + dev_err(dev, "failed to set cpu sysclk: %d\n", ret); + return ret; + } + + /* + * Per datasheet, AUDMIX expects 8 slots and 32 bits + * for every slot in TDM mode. + */ + ret =3D snd_soc_dai_set_tdm_slot(rtd->cpu_dai, BIT(channels) - 1, + BIT(channels) - 1, 8, 32); + if (ret) + dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret); + + return ret; +} + +static int imx_audmix_be_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd =3D substream->private_data; + struct device *dev =3D rtd->card->dev; + bool tx =3D substream->stream =3D=3D SNDRV_PCM_STREAM_PLAYBACK; + unsigned int fmt =3D SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF; + int ret; + + if (!tx) + return 0; + + /* For playback the AUDMIX is slave */ + fmt |=3D SND_SOC_DAIFMT_CBM_CFM; + + /* set AUDMIX DAI configuration */ + ret =3D snd_soc_dai_set_fmt(rtd->cpu_dai, fmt); + if (ret) + dev_err(dev, "failed to set AUDMIX DAI fmt: %d\n", ret); + + return ret; +} + +static struct snd_soc_ops imx_audmix_fe_ops =3D { + .startup =3D imx_audmix_fe_startup, + .hw_params =3D imx_audmix_fe_hw_params, +}; + +static struct snd_soc_ops imx_audmix_be_ops =3D { + .hw_params =3D imx_audmix_be_hw_params, +}; + +static int imx_audmix_probe(struct platform_device *pdev) +{ + struct device_node *np =3D pdev->dev.of_node; + struct device_node *audmix_np =3D NULL, *out_cpu_np =3D NULL; + struct platform_device *audmix_pdev =3D NULL; + struct platform_device *cpu_pdev; + struct of_phandle_args args; + struct imx_audmix *priv; + int i, num_dai, ret; + const char *fe_name_pref =3D "HiFi-AUDMIX-FE-"; + char *be_name, *be_pb, *be_cp, *dai_name, *capture_dai_name; + + audmix_np =3D of_parse_phandle(np, "audmix-controller", 0); + if (!audmix_np) { + dev_err(&pdev->dev, "Missing audmix-controller phandle at %s\n", + np->full_name); + return -EINVAL; + } + + audmix_pdev =3D of_find_device_by_node(audmix_np); + if (!audmix_pdev) { + dev_err(&pdev->dev, "Missing AUDMIX platform device for %s\n", + np->full_name); + return -EINVAL; + } + + num_dai =3D of_count_phandle_with_args(audmix_np, "dais", NULL); + if (num_dai !=3D FSL_AUDMIX_MAX_DAIS) { + dev_err(&pdev->dev, "Need 2 dais to be provided for %s\n", + audmix_np->full_name); + return -EINVAL; + } + + priv =3D devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->num_dai =3D 2 * num_dai; + priv->dai =3D devm_kzalloc(&pdev->dev, priv->num_dai * + sizeof(struct snd_soc_dai_link), GFP_KERNEL); + if (!priv->dai) + return -ENOMEM; + + priv->num_dai_conf =3D num_dai; + priv->dai_conf =3D devm_kzalloc(&pdev->dev, priv->num_dai_conf * + sizeof(struct snd_soc_codec_conf), + GFP_KERNEL); + if (!priv->dai_conf) + return -ENOMEM; + + priv->num_dapm_routes =3D 3 * num_dai; + priv->dapm_routes =3D devm_kzalloc(&pdev->dev, priv->num_dapm_routes * + sizeof(struct snd_soc_dapm_route), + GFP_KERNEL); + if (!priv->dapm_routes) + return -ENOMEM; + + for (i =3D 0; i < num_dai; i++) { + ret =3D of_parse_phandle_with_args(audmix_np, "dais", NULL, i, + &args); + if (ret < 0) { + dev_err(&pdev->dev, "of_parse_phandle_with_args failed\n"); + return ret; + } + + cpu_pdev =3D of_find_device_by_node(args.np); + if (!cpu_pdev) { + dev_err(&pdev->dev, "failed to find SAI platform device\n"); + return -EINVAL; + } + + dai_name =3D devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s%s", + fe_name_pref, args.np->full_name + 1); + + dev_info(&pdev->dev, "DAI FE name:%s\n", dai_name); + + if (i =3D=3D 0) { + out_cpu_np =3D args.np; + capture_dai_name =3D + devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s %s", + dai_name, "CPU-Capture"); + } + + priv->dai[i].name =3D dai_name; + priv->dai[i].stream_name =3D "HiFi-AUDMIX-FE"; + priv->dai[i].codec_dai_name =3D "snd-soc-dummy-dai"; + priv->dai[i].codec_name =3D "snd-soc-dummy"; + priv->dai[i].cpu_of_node =3D args.np; + priv->dai[i].cpu_dai_name =3D dev_name(&cpu_pdev->dev); + priv->dai[i].platform_of_node =3D args.np; + priv->dai[i].dynamic =3D 1; + priv->dai[i].dpcm_playback =3D 1; + priv->dai[i].dpcm_capture =3D (i =3D=3D 0 ? 1 : 0); + priv->dai[i].ignore_pmdown_time =3D 1; + priv->dai[i].ops =3D &imx_audmix_fe_ops; + + /* Add AUDMIX Backend */ + be_name =3D devm_kasprintf(&pdev->dev, GFP_KERNEL, + "audmix-%d", i); + be_pb =3D devm_kasprintf(&pdev->dev, GFP_KERNEL, + "AUDMIX-Playback-%d", i); + be_cp =3D devm_kasprintf(&pdev->dev, GFP_KERNEL, + "AUDMIX-Capture-%d", i); + + priv->dai[num_dai + i].name =3D be_name; + priv->dai[num_dai + i].codec_dai_name =3D "snd-soc-dummy-dai"; + priv->dai[num_dai + i].codec_name =3D "snd-soc-dummy"; + priv->dai[num_dai + i].cpu_of_node =3D audmix_np; + priv->dai[num_dai + i].cpu_dai_name =3D be_name; + priv->dai[num_dai + i].platform_name =3D "snd-soc-dummy"; + priv->dai[num_dai + i].no_pcm =3D 1; + priv->dai[num_dai + i].dpcm_playback =3D 1; + priv->dai[num_dai + i].dpcm_capture =3D 1; + priv->dai[num_dai + i].ignore_pmdown_time =3D 1; + priv->dai[num_dai + i].ops =3D &imx_audmix_be_ops; + + priv->dai_conf[i].of_node =3D args.np; + priv->dai_conf[i].name_prefix =3D dai_name; + + priv->dapm_routes[i].source =3D + devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s %s", + dai_name, "CPU-Playback"); + priv->dapm_routes[i].sink =3D be_pb; + priv->dapm_routes[num_dai + i].source =3D be_pb; + priv->dapm_routes[num_dai + i].sink =3D be_cp; + priv->dapm_routes[2 * num_dai + i].source =3D be_cp; + priv->dapm_routes[2 * num_dai + i].sink =3D capture_dai_name; + } + + cpu_pdev =3D of_find_device_by_node(out_cpu_np); + if (!cpu_pdev) { + dev_err(&pdev->dev, "failed to find SAI platform device\n"); + return -EINVAL; + } + priv->cpu_mclk =3D devm_clk_get(&cpu_pdev->dev, "mclk1"); + if (IS_ERR(priv->cpu_mclk)) { + ret =3D PTR_ERR(priv->cpu_mclk); + dev_err(&cpu_pdev->dev, "failed to get DAI mclk1: %d\n", ret); + return -EINVAL; + } + + priv->audmix_pdev =3D audmix_pdev; + priv->out_pdev =3D cpu_pdev; + + priv->card.dai_link =3D priv->dai; + priv->card.num_links =3D priv->num_dai; + priv->card.codec_conf =3D priv->dai_conf; + priv->card.num_configs =3D priv->num_dai_conf; + priv->card.dapm_routes =3D priv->dapm_routes; + priv->card.num_dapm_routes =3D priv->num_dapm_routes; + priv->card.dev =3D &pdev->dev; + priv->card.owner =3D THIS_MODULE; + + ret =3D snd_soc_of_parse_card_name(&priv->card, "model"); + if (ret) { + dev_err(&pdev->dev, "snd_soc_of_parse_card_name failed\n"); + return ret; + } + + platform_set_drvdata(pdev, &priv->card); + snd_soc_card_set_drvdata(&priv->card, priv); + + ret =3D devm_snd_soc_register_card(&pdev->dev, &priv->card); + if (ret) { + dev_err(&pdev->dev, "snd_soc_register_card failed\n"); + return ret; + } + + return ret; +} + +static const struct of_device_id imx_audmix_dt_ids[] =3D { + { .compatible =3D "fsl,imx-audmix", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, imx_audmix_dt_ids); + +static struct platform_driver imx_audmix_driver =3D { + .probe =3D imx_audmix_probe, + .driver =3D { + .name =3D "imx-audmix", + .of_match_table =3D imx_audmix_dt_ids, + .pm =3D &snd_soc_pm_ops, + }, +}; +module_platform_driver(imx_audmix_driver); + +MODULE_DESCRIPTION("NXP AUDMIX ASoC machine driver"); +MODULE_AUTHOR("Viorel Suman "); +MODULE_ALIAS("platform:imx-audmix"); +MODULE_LICENSE("GPL v2"); --=20 2.7.4