Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758108Ab2HHMcP (ORCPT ); Wed, 8 Aug 2012 08:32:15 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:41561 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758087Ab2HHMb5 (ORCPT ); Wed, 8 Aug 2012 08:31:57 -0400 From: Prabhakar Lad To: LMML , LAK CC: dlos , Hans Verkuil , , Sekhar Nori , Mauro Carvalho Chehab , Manjunath Hadli , "Lad, Prabhakar" Subject: [PATCH 2/2] ths7303: enable THS7303 for HD modes Date: Wed, 8 Aug 2012 18:00:20 +0530 Message-ID: <1344429020-27616-3-git-send-email-prabhakar.lad@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1344429020-27616-1-git-send-email-prabhakar.lad@ti.com> References: <1344429020-27616-1-git-send-email-prabhakar.lad@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4969 Lines: 172 From: Manjunath Hadli add filter settings for high def modes like 1080i, 1080p,720p and others and implementing dv_timings. Signed-off-by: Manjunath Hadli Signed-off-by: Lad, Prabhakar --- drivers/media/video/ths7303.c | 107 ++++++++++++++++++++++++++++++++++------ 1 files changed, 91 insertions(+), 16 deletions(-) diff --git a/drivers/media/video/ths7303.c b/drivers/media/video/ths7303.c index e5c0eed..d997583 100644 --- a/drivers/media/video/ths7303.c +++ b/drivers/media/video/ths7303.c @@ -28,6 +28,18 @@ #include #include +#define THS7303_CHANNEL_1 1 +#define THS7303_CHANNEL_2 2 +#define THS7303_CHANNEL_3 3 + +enum ths7303_filter_mode { + THS7303_FILTER_MODE_480I_576I, + THS7303_FILTER_MODE_480P_576P, + THS7303_FILTER_MODE_720P_1080I, + THS7303_FILTER_MODE_1080P, + THS7303_FILTER_MODE_DISABLE +}; + MODULE_DESCRIPTION("TI THS7303 video amplifier driver"); MODULE_AUTHOR("Chaithrika U S"); MODULE_LICENSE("GPL"); @@ -37,35 +49,97 @@ module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Debug level 0-1"); /* following function is used to set ths7303 */ -static int ths7303_setvalue(struct v4l2_subdev *sd, v4l2_std_id std) +int ths7303_setval(struct v4l2_subdev *sd, enum ths7303_filter_mode mode) { + u8 input_bias_chroma = 3; + u8 input_bias_luma = 3; + int disable = 0; int err = 0; - u8 val; - struct i2c_client *client; + u8 val = 0; + u8 temp; - client = v4l2_get_subdevdata(sd); + struct i2c_client *client = v4l2_get_subdevdata(sd); - if (std & (V4L2_STD_ALL & ~V4L2_STD_SECAM)) { - val = 0x02; - v4l2_dbg(1, debug, sd, "setting value for SDTV format\n"); - } else { - val = 0x00; - v4l2_dbg(1, debug, sd, "disabling all channels\n"); + if (!client) + return -EINVAL; + + + switch (mode) { + case THS7303_FILTER_MODE_1080P: + val = (3 << 6); + val |= (3 << 3); + break; + case THS7303_FILTER_MODE_720P_1080I: + val = (2 << 6); + val |= (2 << 3); + break; + case THS7303_FILTER_MODE_480P_576P: + val = (1 << 6); + val |= (1 << 3); + break; + case THS7303_FILTER_MODE_480I_576I: + break; + case THS7303_FILTER_MODE_DISABLE: + pr_info("mode disabled\n"); + /* disable all channels */ + disable = 1; + default: + /* disable all channels */ + disable = 1; } + /* Setup channel 2 - Luma - Green */ + temp = val; + if (!disable) + val |= input_bias_luma; + err = i2c_smbus_write_byte_data(client, THS7303_CHANNEL_2, val); + if (err) + goto out; - err |= i2c_smbus_write_byte_data(client, 0x01, val); - err |= i2c_smbus_write_byte_data(client, 0x02, val); - err |= i2c_smbus_write_byte_data(client, 0x03, val); + /* setup two chroma channels */ + if (!disable) + temp |= input_bias_chroma; + err = i2c_smbus_write_byte_data(client, THS7303_CHANNEL_1, temp); if (err) - v4l2_err(sd, "write failed\n"); + goto out; + err = i2c_smbus_write_byte_data(client, THS7303_CHANNEL_3, temp); + if (err) + goto out; + return err; +out: + pr_info("write byte data failed\n"); return err; } static int ths7303_s_std_output(struct v4l2_subdev *sd, v4l2_std_id norm) { - return ths7303_setvalue(sd, norm); + if (norm & (V4L2_STD_ALL & ~V4L2_STD_SECAM)) + return ths7303_setval(sd, THS7303_FILTER_MODE_480I_576I); + else + return ths7303_setval(sd, THS7303_FILTER_MODE_DISABLE); +} + +/* for setting filter for HD output */ +static int ths7303_s_dv_timings(struct v4l2_subdev *sd, + struct v4l2_dv_timings *dv_timings) +{ + u32 height = dv_timings->bt.height; + int interlaced = dv_timings->bt.interlaced; + int res = 0; + + if (height == 1080 && !interlaced) + res = ths7303_setval(sd, THS7303_FILTER_MODE_1080P); + else if ((height == 720 && !interlaced) || + (height == 1080 && interlaced)) + res = ths7303_setval(sd, THS7303_FILTER_MODE_720P_1080I); + else if ((height == 480 || height == 576) && !interlaced) + res = ths7303_setval(sd, THS7303_FILTER_MODE_480P_576P); + else + /* disable all channels */ + res = ths7303_setval(sd, THS7303_FILTER_MODE_DISABLE); + + return res; } static int ths7303_g_chip_ident(struct v4l2_subdev *sd, @@ -78,6 +152,7 @@ static int ths7303_g_chip_ident(struct v4l2_subdev *sd, static const struct v4l2_subdev_video_ops ths7303_video_ops = { .s_std_output = ths7303_s_std_output, + .s_dv_timings = ths7303_s_dv_timings, }; static const struct v4l2_subdev_core_ops ths7303_core_ops = { @@ -107,7 +182,7 @@ static int ths7303_probe(struct i2c_client *client, v4l2_i2c_subdev_init(sd, client, &ths7303_ops); - return ths7303_setvalue(sd, std_id); + return ths7303_s_std_output(sd, std_id); } static int ths7303_remove(struct i2c_client *client) -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/