From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joonyoung Shim Subject: [PATCH] ASoC: Factor out I2C 8 bit address 8 bit data I/O Date: Mon, 07 Sep 2009 12:04:37 +0900 Message-ID: <4AA47845.8070403@samsung.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mailout3.samsung.com (mailout3.samsung.com [203.254.224.33]) by alsa0.perex.cz (Postfix) with ESMTP id 0194224390 for ; Mon, 7 Sep 2009 05:06:41 +0200 (CEST) Received: from epmmp2 (mailout3.samsung.com [203.254.224.33]) by mailout1.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTP id <0KPK0072DZ7PK1@mailout1.samsung.com> for alsa-devel@alsa-project.org; Mon, 07 Sep 2009 12:04:38 +0900 (KST) Received: from TNRNDGASPAPP1.tn.corp.samsungelectronics.net ([165.213.149.150]) by mmp2.samsung.com (iPlanet Messaging Server 5.2 Patch 2 (built Jul 14 2004)) with ESMTPA id <0KPK002IWZ7Q2L@mmp2.samsung.com> for alsa-devel@alsa-project.org; Mon, 07 Sep 2009 12:04:38 +0900 (KST) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: broonie@opensource.wolfsonmicro.com Cc: alsa-devel@alsa-project.org, kyungmin.park@samsung.com List-Id: alsa-devel@alsa-project.org This patch is for the AK4671 codec driver using this format. Signed-off-by: Joonyoung Shim --- sound/soc/soc-cache.c | 30 ++++++++++++++++++++++++++++++ 1 files changed, 30 insertions(+), 0 deletions(-) diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c index c8ceddc..404231e 100644 --- a/sound/soc/soc-cache.c +++ b/sound/soc/soc-cache.c @@ -77,6 +77,35 @@ static int snd_soc_7_9_spi_write(void *control_data, const char *data, #define snd_soc_7_9_spi_write NULL #endif +static int snd_soc_8_8_write(struct snd_soc_codec *codec, unsigned int reg, + unsigned int value) +{ + u8 *cache = codec->reg_cache; + u8 data[2]; + + BUG_ON(codec->volatile_register); + + data[0] = reg & 0xff; + data[1] = value & 0xff; + + if (reg < codec->reg_cache_size) + cache[reg] = value; + + if (codec->hw_write(codec->control_data, data, 2) == 2) + return 0; + else + return -EIO; +} + +static unsigned int snd_soc_8_8_read(struct snd_soc_codec *codec, + unsigned int reg) +{ + u8 *cache = codec->reg_cache; + if (reg >= codec->reg_cache_size) + return -1; + return cache[reg]; +} + static int snd_soc_8_16_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int value) { @@ -151,6 +180,7 @@ static struct { unsigned int (*i2c_read)(struct snd_soc_codec *, unsigned int); } io_types[] = { { 7, 9, snd_soc_7_9_write, snd_soc_7_9_spi_write, snd_soc_7_9_read }, + { 8, 8, snd_soc_8_8_write, NULL, snd_soc_8_8_read, NULL }, { 8, 16, snd_soc_8_16_write, NULL, snd_soc_8_16_read, snd_soc_8_16_read_i2c }, }; -- 1.6.0.4