From patchwork Sun Mar 1 03:04:30 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yakir Yang X-Patchwork-Id: 5906881 Return-Path: X-Original-To: patchwork-linux-rockchip@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 8C972BF440 for ; Sun, 1 Mar 2015 03:07:00 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 767D3202E5 for ; Sun, 1 Mar 2015 03:06:59 +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 7367820279 for ; Sun, 1 Mar 2015 03:06:58 +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 1YRuDZ-0005lJ-33; Sun, 01 Mar 2015 03:06:57 +0000 Received: from regular1.263xmail.com ([211.150.99.140]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YRuDX-0005hE-Dg for linux-rockchip@lists.infradead.org; Sun, 01 Mar 2015 03:06:56 +0000 Received: from ykk?rock-chips.com (unknown [192.168.167.128]) by regular1.263xmail.com (Postfix) with SMTP id E222F4A9F; Sun, 1 Mar 2015 11:06:29 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 X-ADDR-CHECKED: 0 Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id 379DF1F1B5; Sun, 1 Mar 2015 11:06:25 +0800 (CST) X-RL-SENDER: ykk@rock-chips.com X-FST-TO: lgirdwood@gmail.com X-SENDER-IP: 58.22.7.114 X-LOGIN-NAME: ykk@rock-chips.com X-UNIQUE-TAG: X-ATTACHMENT-NUM: 0 X-SENDER: ykk@rock-chips.com X-DNS-TYPE: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (Postfix) whith ESMTP id 796395L7I8; Sun, 01 Mar 2015 11:06:27 +0800 (CST) From: Yakir Yang To: Liam Girdwood , djkurtz@chromium.org, dianders@chromium.org, linux-rockchip@lists.infradead.org Subject: [PATCH v4 14/15] ASoC: rockchip/rockchip-hdmi-audio: add sound driver for hdmi audio Date: Sat, 28 Feb 2015 22:04:30 -0500 Message-Id: <1425179070-2736-1-git-send-email-ykk@rock-chips.com> X-Mailer: git-send-email 2.1.2 In-Reply-To: <1425175834-24661-1-git-send-email-ykk@rock-chips.com> References: <1425175834-24661-1-git-send-email-ykk@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150228_190655_988039_C6AD9F63 X-CRM114-Status: GOOD ( 13.65 ) X-Spam-Score: -0.0 (/) Cc: alsa-devel@alsa-project.org, David Airlie , dri-devel@lists.freedesktop.org, Jaroslav Kysela , Max Filippov , Yakir Yang , Bard Liao , mmind00@googlemail.com, Lars-Peter Clausen , Axel Lin , Takashi Iwai , Russell King , Sean Cross , Oder Chiou , Arnd Bergmann , Jyri Sarha , Ben Zhang , Mark Brown , marcheu@chromium.org, mark.yao@rock-chips.com, Fabio Estevam , Brian Austin , Greg Kroah-Hartman , linux-kernel@vger.kernel.org, Philipp Zabel , Andy Yan X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=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 Add 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 --- Changes in v4: - Add ".pm = &snd_soc_pm_ops," Changes in v3: - Delete the operation of jack in rockchip-hdmi-audio driver, get ready to switch to simple-audio-card driver. Changes in v2: - give "codec-name" & "codec-dai-name" an const name sound/soc/rockchip/Kconfig | 9 ++ sound/soc/rockchip/Makefile | 2 + sound/soc/rockchip/rockchip_hdmi_audio.c | 169 +++++++++++++++++++++++++++++++ 3 files changed, 180 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..cf95037 --- /dev/null +++ b/sound/soc/rockchip/rockchip_hdmi_audio.c @@ -0,0 +1,169 @@ +/* + * 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 "rockchip_i2s.h" + +#define DRV_NAME "rockchip-hdmi-audio" + +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 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", + .codec_name = "dw-hdmi-audio", + .codec_dai_name = "dw-hdmi-hifi", + .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; + int ret; + + card->dev = &pdev->dev; + platform_set_drvdata(pdev, card); + + hdmi_audio_dai.cpu_of_node = of_parse_phandle(np, "i2s-controller", 0); + if (!hdmi_audio_dai.cpu_of_node) { + dev_err(&pdev->dev, "Property 'i2s-controller' missing !\n"); + goto free_priv_data; + } + + 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_priv_data: + snd_soc_card_set_drvdata(card, NULL); + platform_set_drvdata(pdev, NULL); + 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); + snd_soc_card_set_drvdata(card, NULL); + 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, + .pm = &snd_soc_pm_ops, + .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);