From patchwork Mon Dec 15 02:11:32 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yakir Yang X-Patchwork-Id: 5489791 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id A6A94BEEA8 for ; Mon, 15 Dec 2014 02:16:58 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 865BB20A03 for ; Mon, 15 Dec 2014 02:16:57 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 62D6920A01 for ; Mon, 15 Dec 2014 02:16:56 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1Y0LBX-0003bD-Ho; Mon, 15 Dec 2014 02:14:55 +0000 Received: from regular1.263xmail.com ([211.150.99.133]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Y0LBT-0003Wq-HR; Mon, 15 Dec 2014 02:14:53 +0000 Received: from ykk?rock-chips.com (unknown [192.168.167.153]) by regular1.263xmail.com (Postfix) with SMTP id 888D07339; Mon, 15 Dec 2014 10:14:20 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id 25098246B8; Mon, 15 Dec 2014 10:14:14 +0800 (CST) X-RL-SENDER: ykk@rock-chips.com X-SENDER-IP: 104.167.231.7 X-LOGIN-NAME: ykk@rock-chips.com X-UNIQUE-TAG: <5d49df41fe2e2dea888133f0f1dd3213> X-ATTACHMENT-NUM: 0 X-SENDER: ykk@rock-chips.com X-DNS-TYPE: 0 Received: from unknown (unknown [104.167.231.7]) by smtp.263.net (Postfix) whith SMTP id 6366GNBHJ4; Mon, 15 Dec 2014 10:14:18 +0800 (CST) From: Yakir Yang To: Yakir Yang Subject: [PATCH 4/6] ASoC: rockchip-hdmi-audio: add sound driver for hdmi audio Date: Mon, 15 Dec 2014 10:11:32 +0800 Message-Id: <1418609494-15820-5-git-send-email-ykk@rock-chips.com> X-Mailer: git-send-email 2.1.2 In-Reply-To: <1418609494-15820-1-git-send-email-ykk@rock-chips.com> References: <1418609494-15820-1-git-send-email-ykk@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141214_181452_244613_FCF7B156 X-CRM114-Status: GOOD ( 14.89 ) X-Spam-Score: -0.0 (/) Cc: alsa-devel@alsa-project.org, Heiko Stuebner , devicetree@vger.kernel.org, Takashi Iwai , dri-devel@lists.freedesktop.org, Liam Girdwood , Max Filippov , Bard Liao , Lars-Peter Clausen , linux-rockchip@lists.infradead.org, Grant Likely , Dylan Reid , Xu Jianqun , Oder Chiou , Zubair.Kakakhel@imgtec.com, Mark Brown , Daniel Kurtz , =?UTF-8?q?St=C3=A9phane=20Marchesin?= , Jaroslav Kysela , Sonny Rao , linux-arm-kernel@lists.infradead.org, Fabio Estevam , Brian Austin , linux-kernel@vger.kernel.org, Rob Herring , Philipp Zabel , Shawn Guo X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Adds a sound driver that combines rockchip-i2s cpu_dai and dw-hdmi-codec as codec_dai to provide hdmi audio output on rk3288 platforms. Signed-off-by: Yakir Yang --- sound/soc/rockchip/Kconfig | 9 ++ sound/soc/rockchip/Makefile | 2 + sound/soc/rockchip/rockchip_hdmi_audio.c | 208 +++++++++++++++++++++++++++++++ 3 files changed, 219 insertions(+) create mode 100644 sound/soc/rockchip/rockchip_hdmi_audio.c diff --git a/sound/soc/rockchip/Kconfig b/sound/soc/rockchip/Kconfig index e181826..ed2b7f0 100644 --- a/sound/soc/rockchip/Kconfig +++ b/sound/soc/rockchip/Kconfig @@ -14,3 +14,12 @@ config SND_SOC_ROCKCHIP_I2S Say Y or M if you want to add support for I2S driver for Rockchip I2S device. The device supports upto maximum of 8 channels each for play and record. + +config SND_SOC_ROCKCHIP_HDMI_AUDIO + tristate "ASoC support for Rockchip HDMI audio" + depends on SND_SOC_ROCKCHIP + select SND_SOC_ROCKCHIP_I2S + select SND_SOC_DW_HDMI_AUDIO + help + Say Y or M here if you want to add support for SoC audio on Rockchip + HDMI, such as rk3288 hdmi. diff --git a/sound/soc/rockchip/Makefile b/sound/soc/rockchip/Makefile index b921909..b9185b3 100644 --- a/sound/soc/rockchip/Makefile +++ b/sound/soc/rockchip/Makefile @@ -1,4 +1,6 @@ # ROCKCHIP Platform Support snd-soc-i2s-objs := rockchip_i2s.o +snd-soc-rockchip-hdmi-audio-objs := rockchip_hdmi_audio.o obj-$(CONFIG_SND_SOC_ROCKCHIP_I2S) += snd-soc-i2s.o +obj-$(CONFIG_SND_SOC_ROCKCHIP_HDMI_AUDIO) += snd-soc-rockchip-hdmi-audio.o diff --git a/sound/soc/rockchip/rockchip_hdmi_audio.c b/sound/soc/rockchip/rockchip_hdmi_audio.c new file mode 100644 index 0000000..a1a9c75 --- /dev/null +++ b/sound/soc/rockchip/rockchip_hdmi_audio.c @@ -0,0 +1,208 @@ +/* + * rockchip-hdmi-card.c + * + * ROCKCHIP ALSA SoC DAI driver for HDMI audio on rockchip processors. + * Copyright (c) 2014, ROCKCHIP CORPORATION. All rights reserved. + * Authors: Yakir Yang + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see .* + * + */ +#include +#include + +#include +#include +#include +#include +#include + +#include "rockchip_i2s.h" +#include "../codecs/dw-hdmi-audio.h" + +#define DRV_NAME "rockchip-hdmi-audio" + +struct hdmi_audio_private { + struct snd_soc_jack hdmi_jack; +}; + +static int rockchip_hdmi_audio_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + unsigned int dai_fmt = rtd->dai_link->dai_fmt; + int mclk, ret; + + switch (params_rate(params)) { + case 8000: + case 16000: + case 24000: + case 32000: + case 48000: + case 64000: + case 96000: + mclk = 12288000; + break; + case 11025: + case 22050: + case 44100: + case 88200: + mclk = 11289600; + break; + default: + return -EINVAL; + } + + ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); + if (ret < 0) { + dev_err(cpu_dai->dev, "failed to set cpu_dai fmt.\n"); + return ret; + } + + ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, SND_SOC_CLOCK_OUT); + if (ret < 0) { + dev_err(cpu_dai->dev, "failed to set cpu_dai sysclk.\n"); + return ret; + } + + return 0; +} + +static int hdmi_audio_dai_init(struct snd_soc_pcm_runtime *runtime) +{ + struct snd_soc_codec *codec = runtime->codec; + struct snd_soc_card *card = runtime->card; + struct hdmi_audio_private *drv = snd_soc_card_get_drvdata(card); + + /* Enable headphone jack detection */ + snd_soc_jack_new(codec, "HDMI Jack", SND_JACK_LINEOUT, + &drv->hdmi_jack); + + return dw_hdmi_jack_detect(codec, &drv->hdmi_jack); +} + +static struct snd_soc_ops hdmi_audio_dai_ops = { + .hw_params = rockchip_hdmi_audio_hw_params, +}; + +static struct snd_soc_dai_link hdmi_audio_dai = { + .name = "RockchipHDMI", + .stream_name = "RockchipHDMI", + .init = hdmi_audio_dai_init, + .ops = &hdmi_audio_dai_ops, + .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | + SND_SOC_DAIFMT_CBS_CFS, +}; + +static struct snd_soc_card rockchip_hdmi_audio_card = { + .name = "RockchipHDMI", + .owner = THIS_MODULE, + .dai_link = &hdmi_audio_dai, + .num_links = 1, +}; + +static int rockchip_hdmi_audio_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &rockchip_hdmi_audio_card; + struct device_node *np = pdev->dev.of_node; + struct hdmi_audio_private *drv; + int ret; + + drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL); + if (!drv) + return -ENOMEM; + + card->dev = &pdev->dev; + platform_set_drvdata(pdev, &card); + snd_soc_card_set_drvdata(card, drv); + + of_property_read_string(np, "codec-name", &hdmi_audio_dai.codec_name); + if (!hdmi_audio_dai.codec_name) { + dev_err(&pdev->dev, "Property 'codec-name' missing !\n"); + goto free_priv_data; + } + + of_property_read_string(np, "codec-dai-name", + &hdmi_audio_dai.codec_dai_name); + if (!hdmi_audio_dai.codec_dai_name) { + dev_err(&pdev->dev, "Property 'codec-dai-name' missing !\n"); + goto free_codec_name; + } + + hdmi_audio_dai.cpu_of_node = of_parse_phandle(np, "cpu-of-node", 0); + if (!hdmi_audio_dai.cpu_of_node) { + dev_err(&pdev->dev, "Property 'cpu-of-node' missing !\n"); + goto free_codec_dai_name; + } + + hdmi_audio_dai.platform_of_node = hdmi_audio_dai.cpu_of_node; + + ret = snd_soc_register_card(card); + if (ret) { + dev_err(&pdev->dev, "register card failed (%d)\n", ret); + card->dev = NULL; + goto free_cpu_of_node; + } + + dev_info(&pdev->dev, "hdmi audio init success.\n"); + + return 0; + +free_cpu_of_node: + hdmi_audio_dai.cpu_of_node = NULL; + hdmi_audio_dai.platform_of_node = NULL; +free_codec_dai_name: + hdmi_audio_dai.codec_dai_name = NULL; +free_codec_name: + hdmi_audio_dai.codec_name = NULL; +free_priv_data: + platform_set_drvdata(pdev, NULL); + devm_kfree(&pdev->dev, drv); + card->dev = NULL; + + return ret; +} + +static int rockchip_hdmi_audio_remove(struct platform_device *pdev) +{ + struct snd_soc_card *card = platform_get_drvdata(pdev); + + snd_soc_unregister_card(card); + platform_set_drvdata(pdev, NULL); + card->dev = NULL; + + return 0; +} + +static const struct of_device_id rockchip_hdmi_audio_of_match[] = { + { .compatible = "rockchip,rk3288-hdmi-audio", }, + {}, +}; + +static struct platform_driver rockchip_hdmi_audio_driver = { + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .of_match_table = rockchip_hdmi_audio_of_match, + }, + .probe = rockchip_hdmi_audio_probe, + .remove = rockchip_hdmi_audio_remove, +}; +module_platform_driver(rockchip_hdmi_audio_driver); + +MODULE_AUTHOR("Yakir Yang "); +MODULE_DESCRIPTION("Rockchip HDMI Audio ASoC Interface"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRV_NAME); +MODULE_DEVICE_TABLE(of, rockchip_hdmi_audio_of_match);