From patchwork Thu Sep 3 22:52:44 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: santiago.nunez@ridgerun.com X-Patchwork-Id: 45450 Received: from comal.ext.ti.com (comal.ext.ti.com [198.47.26.152]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n83Ms4We020747 for ; Thu, 3 Sep 2009 22:54:04 GMT Received: from dlep33.itg.ti.com ([157.170.170.112]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id n83MqQOq022539; Thu, 3 Sep 2009 17:52:31 -0500 Received: from linux.omap.com (localhost [127.0.0.1]) by dlep33.itg.ti.com (8.13.7/8.13.7) with ESMTP id n83MqQ3g014157; Thu, 3 Sep 2009 17:52:26 -0500 (CDT) Received: from linux.omap.com (localhost [127.0.0.1]) by linux.omap.com (Postfix) with ESMTP id 31C478062B; Thu, 3 Sep 2009 17:52:26 -0500 (CDT) X-Original-To: davinci-linux-open-source@linux.davincidsp.com Delivered-To: davinci-linux-open-source@linux.davincidsp.com Received: from dflp53.itg.ti.com (dflp53.itg.ti.com [128.247.5.6]) by linux.omap.com (Postfix) with ESMTP id 27D7F80626 for ; Thu, 3 Sep 2009 17:52:24 -0500 (CDT) Received: from white.ext.ti.com (localhost [127.0.0.1]) by dflp53.itg.ti.com (8.13.8/8.13.8) with ESMTP id n83MqN9p024773 for ; Thu, 3 Sep 2009 17:52:23 -0500 (CDT) Received: from mail165-va3-R.bigfish.com (mail-va3.bigfish.com [216.32.180.114]) by white.ext.ti.com (8.13.7/8.13.7) with ESMTP id n83MqIOp001071 for ; Thu, 3 Sep 2009 17:52:23 -0500 Received: from mail165-va3 (localhost.localdomain [127.0.0.1]) by mail165-va3-R.bigfish.com (Postfix) with ESMTP id 4D5F820347 for ; Thu, 3 Sep 2009 22:52:18 +0000 (UTC) X-SpamScore: 1 X-BigFish: vps1(zz9370K655Na4b1oc8kzz1202hzzz2fh67h) X-Spam-TCS-SCL: 6:0 X-FB-SS: 5, X-MS-Exchange-Organization-Antispam-Report: OrigIP: 74.208.67.6; Service: EHS Received: by mail165-va3 (MessageSwitch) id 1252018331679871_14925; Thu, 3 Sep 2009 22:52:11 +0000 (UCT) Received: from mail.navvo.net (mail.navvo.net [74.208.67.6]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail165-va3.bigfish.com (Postfix) with ESMTP id 70E616B8053; Thu, 3 Sep 2009 22:52:11 +0000 (UTC) Received: from [200.122.155.113] (helo=localhost.localdomain) by mail.navvo.net with esmtpa (Exim 4.63) (envelope-from ) id 1MjL9z-00032z-29; Thu, 03 Sep 2009 17:52:10 -0500 From: santiago.nunez@ridgerun.com To: davinci-linux-open-source@linux.davincidsp.com Date: Thu, 3 Sep 2009 16:52:44 -0600 Message-Id: <1252018364-17432-1-git-send-email-santiago.nunez@ridgerun.com> X-Mailer: git-send-email 1.6.0.4 X-SA-Exim-Connect-IP: 200.122.155.113 X-SA-Exim-Mail-From: santiago.nunez@ridgerun.com X-Spam-Checker-Version: SpamAssassin 3.1.7-deb (2006-10-05) on mail.navvo.net X-Spam-Level: X-Spam-Status: No, score=-2.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00, NO_REAL_NAME autolearn=ham version=3.1.7-deb X-SA-Exim-Version: 4.2.1 (built Tue, 09 Jan 2007 17:23:22 +0000) X-SA-Exim-Scanned: Yes (on mail.navvo.net) Cc: clark.becker@ridgerun.com, Santiago Nunez-Corrales , todd.fischer@ridgerun.com Subject: [PATCH 5/6 v4] Updated TVP7002 driver for DM365 X-BeenThere: davinci-linux-open-source@linux.davincidsp.com X-Mailman-Version: 2.1.4 Precedence: list List-Id: davinci-linux-open-source.linux.davincidsp.com List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: davinci-linux-open-source-bounces@linux.davincidsp.com Errors-To: davinci-linux-open-source-bounces@linux.davincidsp.com From: Santiago Nunez-Corrales This patch provides the implementation of the TVP7002 decoder driver for DM365. Implemented revisions by Vaibhav Hiremath and Hans Verkuil. Removed most of controls, cleared up logic, cleaned up code. Tested on DM365 TI EVM. Signed-off-by: Santiago Nunez-Corrales --- drivers/media/video/tvp7002.c | 1464 +++++++++++++++++++++++++++++++++++++++++ 1 files changed, 1464 insertions(+), 0 deletions(-) create mode 100644 drivers/media/video/tvp7002.c diff --git a/drivers/media/video/tvp7002.c b/drivers/media/video/tvp7002.c new file mode 100644 index 0000000..e6f1fe1 --- /dev/null +++ b/drivers/media/video/tvp7002.c @@ -0,0 +1,1464 @@ +/* Texas Instruments Triple 8-/10-BIT 165-/110-MSPS Video and Graphics + * Digitizer with Horizontal PLL registers + * + * Copyright (C) 2009 Texas Instruments Inc + * Author: Santiago Nunez-Corrales + * + * This code is partially based upon the TVP5150 driver + * written by Mauro Carvalho Chehab (mchehab@infradead.org) + * and the TVP514x driver written by Vaibhav Hiremath + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that 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, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include +#include +#include +#include +#include +#include +#include +#include "tvp7002_reg.h" + +MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver"); +MODULE_AUTHOR("Santiago Nunez-Corrales "); +MODULE_LICENSE("GPL"); + +/* I2C retry attempts */ +#define I2C_RETRY_COUNT (5) + +/* Debugging information */ + +static int debug; +module_param(debug, int, 0); +MODULE_PARM_DESC(debug, "Debug level (0-2)"); + +/* Struct for handling resolutions and associate register values */ +struct tvp7002_resol { + v4l2_std_id id; + int hres; + int vres; + int frate; + int lrate; + int prate; + u8 reg01; + u8 reg02; + u8 reg03; + u8 reg04; +}; + +/* Struct for handling register values */ +struct i2c_reg_value { + u8 reg; + u8 value; +}; + +/* Register default values (according to tvp7002 datasheet) */ +static const struct i2c_reg_value tvp7002_init_default[] = { + /* 0x00: read only */ + { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67 }, + { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20 }, + { TVP7002_HPLL_CRTL, 0xa8 }, + { TVP7002_HPLL_PHASE_SEL, 0x80 }, + { TVP7002_CLAMP_START, 0x32 }, + { TVP7002_CLAMP_W, 0x20 }, + { TVP7002_HSYNC_OUT_W, 0x20 }, + { TVP7002_B_FINE_GAIN, 0x00 }, + { TVP7002_G_FINE_GAIN, 0x00 }, + { TVP7002_R_FINE_GAIN, 0x00 }, + { TVP7002_B_FINE_OFF_MSBS, 0x80 }, + { TVP7002_G_FINE_OFF_MSBS, 0x80 }, + { TVP7002_R_FINE_OFF_MSBS, 0x80 }, + { TVP7002_SYNC_CTL_1, 0x5b }, + { TVP7002_HPLL_AND_CLAMP_CTL, 0x2e }, + { TVP7002_SYNC_ON_G_THRS, 0x5d }, + { TVP7002_SYNC_SEPARATOR_THRS, 0x20 }, + { TVP7002_HPLL_PRE_COAST, 0x00 }, + { TVP7002_HPLL_POST_COAST, 0x00 }, + /* 0x14: read only */ + { TVP7002_OUT_FORMATTER, 0x00 }, + { TVP7002_MISC_CTL_1, 0x11 }, + { TVP7002_MISC_CTL_2, 0x03 }, + { TVP7002_MISC_CTL_3, 0x00 }, + { TVP7002_IN_MUX_SEL_1, 0x00 }, + { TVP7002_IN_MUX_SEL_2, 0xc2 }, + { TVP7002_B_AND_G_COARSE_GAIN, 0x77 }, + { TVP7002_R_COARSE_GAIN, 0x07 }, + { TVP7002_COARSE_CLAMP_CTL, 0x00 }, + { TVP7002_FINE_OFF_LSBS, 0x00 }, + { TVP7002_B_COARSE_OFF, 0x10 }, + { TVP7002_G_COARSE_OFF, 0x10 }, + { TVP7002_R_COARSE_OFF, 0x10 }, + { TVP7002_HSOUT_OUT_START, 0x0d }, + { TVP7002_MISC_CTL_4, 0x0d }, + /* 0x23: read only */ + /* 0x24: read only */ + /* 0x25: read only */ + { TVP7002_AUTO_LVL_CTL_ENABLE, 0x80 }, + /* 0x27: read only */ + { TVP7002_AUTO_LVL_CTL_FILTER, 0x53 }, + { TVP7002_FINE_CLAMP_CTL, 0x07 }, + { TVP7002_PWR_CTL, 0x00 }, + { TVP7002_ADC_SETUP, 0x50 }, + { TVP7002_COARSE_CLAMP_CTL, 0x00 }, + { TVP7002_SOG_CLAMP, 0x80 }, + { TVP7002_RGB_COARSE_CLAMP_CTL, 0x8c }, + { TVP7002_SOG_COARSE_CLAMP_CTL, 0x04 }, + { TVP7002_ALC_PLACEMENT, 0x5a }, + { TVP7002_MVIS_STRIPPER_W, 0x03 }, + { TVP7002_VSYNC_ALGN, 0x10 }, + { TVP7002_SYNC_BYPASS, 0x00 }, + /* 0x37: read only */ + /* 0x38: read only */ + /* 0x39: read only */ + /* 0x3a: read only */ + /* 0x3b: read only */ + /* 0x3c: read only */ + { TVP7002_L_LENGTH_TOL, 0x03 }, + { TVP7002_VIDEO_BWTH_CTL, 0x00 }, + { TVP7002_AVID_START_PIXEL_LSBS, 0x01 }, + { TVP7002_AVID_START_PIXEL_MSBS, 0x2c }, + { TVP7002_AVID_STOP_PIXEL_LSBS, 0x06 }, + { TVP7002_AVID_STOP_PIXEL_MSBS, 0x2c }, + { TVP7002_VBLK_F_0_START_L_OFF, 0x05 }, + { TVP7002_VBLK_F_1_START_L_OFF, 0x05 }, + { TVP7002_VBLK_F_0_DURATION, 0x1e }, + { TVP7002_VBLK_F_1_DURATION, 0x1e }, + { TVP7002_FBIT_F_0_START_L_OFF, 0x00 }, + { TVP7002_FBIT_F_1_START_L_OFF, 0x00 }, + { TVP7002_YUV_Y_G_COEF_LSBS, 0xe3 }, + { TVP7002_YUV_Y_G_COEF_MSBS, 0x16 }, + { TVP7002_YUV_Y_B_COEF_LSBS, 0x4f }, + { TVP7002_YUV_Y_B_COEF_MSBS, 0x02 }, + { TVP7002_YUV_Y_R_COEF_LSBS, 0xce }, + { TVP7002_YUV_Y_R_COEF_MSBS, 0x06 }, + { TVP7002_YUV_U_G_COEF_LSBS, 0xab }, + { TVP7002_YUV_U_G_COEF_MSBS, 0xf3 }, + { TVP7002_YUV_U_B_COEF_LSBS, 0x00 }, + { TVP7002_YUV_U_B_COEF_MSBS, 0x10 }, + { TVP7002_YUV_U_R_COEF_LSBS, 0x55 }, + { TVP7002_YUV_U_R_COEF_MSBS, 0xfc }, + { TVP7002_YUV_V_G_COEF_LSBS, 0x78 }, + { TVP7002_YUV_V_G_COEF_MSBS, 0xf1 }, + { TVP7002_YUV_V_B_COEF_LSBS, 0x88 }, + { TVP7002_YUV_V_B_COEF_MSBS, 0xfe }, + { TVP7002_YUV_V_R_COEF_LSBS, 0x00 }, + { TVP7002_YUV_V_R_COEF_MSBS, 0x10 }, + { 0x5c, 0x00 } /* end of registers */ +}; + +/* Available resolutions */ +static struct tvp7002_resol tvp7002_resolutions[] = { + { + .id = V4L2_STD_NTSC, + .hres = 720, + .vres = 480, + .frate = 30, + .lrate = 15, + .prate = 14, + .reg01 = 0x35, + .reg02 = 0xa0, + .reg03 = TVP7002_VCO_RANGE_ULOW | 0x18, + .reg04 = 0x80, + }, + { + .id = V4L2_STD_PAL, + .hres = 720, + .vres = 576, + .frate = 25, + .lrate = 16, + .prate = 14, + .reg01 = 0x36, + .reg02 = 0x00, + .reg03 = TVP7002_VCO_RANGE_ULOW | 0x18, + .reg04 = 0x80, + }, + { + .id = V4L2_STD_525P_60, + .hres = 720, + .vres = 480, + .frate = 60, + .lrate = 31, + .prate = 27, + .reg01 = 0x35, + .reg02 = 0xa0, + .reg03 = TVP7002_VCO_RANGE_ULOW | 0x18, + .reg04 = 0x80, + }, + { + .id = V4L2_STD_625P_50, + .hres = 720, + .vres = 576, + .frate = 50, + .lrate = 31, + .prate = 27, + .reg01 = 0x36, + .reg02 = 0x00, + .reg03 = TVP7002_VCO_RANGE_ULOW | 0x18, + .reg04 = 0x80, + }, + { + .id = V4L2_STD_720P_60, + .hres = 1280, + .vres = 720, + .frate = 60, + .lrate = 45, + .prate = 74, + .reg01 = 0x67, + .reg02 = 0x20, + .reg03 = TVP7002_VCO_RANGE_MED | 0x20, + .reg04 = 0x80, + }, + { + .id = V4L2_STD_720P_50, + .hres = 1280, + .vres = 720, + .frate = 50, + .lrate = 38, + .prate = 74, + .reg01 = 0x7b, + .reg02 = 0xc0, + .reg03 = TVP7002_VCO_RANGE_MED | 0x18, + .reg04 = 0x80, + }, + { + .id = V4L2_STD_1080I_60, + .hres = 1920, + .vres = 1080, + .frate = 60, + .lrate = 34, + .prate = 74, + .reg01 = 0x89, + .reg02 = 0x80, + .reg03 = TVP7002_VCO_RANGE_MED | 0x18, + .reg04 = 0x80, + }, + { + .id = V4L2_STD_1080I_50, + .hres = 1920, + .vres = 1080, + .frate = 50, + .lrate = 28, + .prate = 74, + .reg01 = 0xa5, + .reg02 = 0x00, + .reg03 = TVP7002_VCO_RANGE_MED | 0x10, + .reg04 = 0x80, + }, + { + .id = V4L2_STD_1080P_60, + .hres = 1920, + .vres = 1080, + .frate = 60, + .lrate = 68, + .prate = 149, + .reg01 = 0x89, + .reg02 = 0x80, + .reg03 = TVP7002_VCO_RANGE_HIGH | 0x20, + .reg04 = 0x80, + }, + { + .id = V4L2_STD_1080P_50, + .hres = 1920, + .vres = 1080, + .frate = 50, + .lrate = 56, + .prate = 149, + .reg01 = 0xa5, + .reg02 = 0x00, + .reg03 = TVP7002_VCO_RANGE_HIGH | 0x18, + .reg04 = 0x80, + }, +}; + +/* + * tvp7002_from_std - Map video standard to register information + * @std: v4l2_std_id (u64) integer + * + * Returns index of std or -1 in case of error. + */ +int tvp7002_from_std(v4l2_std_id std) +{ + int res; + + switch (std) { + case V4L2_STD_525P_60: + res = TVP7002_STD_480P; + break; + case V4L2_STD_NTSC: + res = TVP7002_STD_480I; + break; + case V4L2_STD_625P_50: + res = TVP7002_STD_576P; + break; + case V4L2_STD_PAL: + res = TVP7002_STD_576I; + break; + case V4L2_STD_720P_50: + res = TVP7002_STD_720P_50; + break; + case V4L2_STD_720P_60: + res = TVP7002_STD_720P_60; + break; + case V4L2_STD_1080I_50: + res = TVP7002_STD_1080I_50; + break; + case V4L2_STD_1080I_60: + res = TVP7002_STD_1080I_60; + break; + case V4L2_STD_1080P_50: + res = TVP7002_STD_1080P_50; + break; + case V4L2_STD_1080P_60: + res = TVP7002_STD_1080P_60; + break; + default: + res = -1; + break; + } + + return res; +} + +/* + * tvp7002_colorspace - Find the color space of a video format + * @std: v4l2_std_id (u64) integer + * + * Returns color space for a standard id + */ +enum v4l2_colorspace tvp7002_colorspace(v4l2_std_id std) +{ + + switch (std) { + case V4L2_STD_525P_60: + case V4L2_STD_NTSC: + case V4L2_STD_625P_50: + case V4L2_STD_PAL: + return V4L2_COLORSPACE_SMPTE170M; + case V4L2_STD_720P_50: + case V4L2_STD_720P_60: + case V4L2_STD_1080I_50: + case V4L2_STD_1080I_60: + case V4L2_STD_1080P_50: + case V4L2_STD_1080P_60: + return V4L2_COLORSPACE_REC709; + default: + return 0; + } +} + +#define NUM_ACTIVE_PIXELS(fmt) \ + tvp7002_resolutions[tvp7002_from_std((fmt))].hres + +#define NUM_ACTIVE_LINES(fmt) \ + tvp7002_resolutions[tvp7002_from_std((fmt))].vres + +/* Device definition */ +struct tvp7002 { + struct v4l2_subdev sd; + v4l2_std_id video_mode; + struct v4l2_pix_format pix; + const struct tvp7002_config *pdata; + int streaming; +}; + +/* Supported controls */ +static struct v4l2_queryctrl tvp7002_qctrl[] = { + { + /* This gain control uses fine grain in TVP7002 */ + .id = V4L2_CID_GAIN, + .type = V4L2_CTRL_TYPE_INTEGER, + .name = "Gain for RGB channels", + .minimum = 0, + .maximum = 255, + .step = 1, + .default_value = 0, + .flags = 0, + }, +}; + +/* + * to_tvp7002 - Obtain device handler TVP7002 + * @sd: ptr to v4l2_subdev struct + * + * Returns device handler tvp7002. + */ +static struct tvp7002 *to_tvp7002(struct v4l2_subdev *sd) +{ + return container_of(sd, struct tvp7002, sd); +} + +/* + * tvp7002_read - Read a value from a register in an TVP7002 + * @sd: ptr to v4l2_subdev struct + * @reg: TVP7002 register address + * + * Returns value read if successful, or non-zero (-1) otherwise. + */ +static int tvp7002_read(struct v4l2_subdev *sd, unsigned char addr) +{ + struct i2c_client *c = v4l2_get_subdevdata(sd); + int retry; + int error; + + for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { + error = i2c_smbus_read_byte_data(c, addr); + + if (error >= 0) + return 0; + msleep_interruptible(10); + } + v4l2_err(sd, "TVP7002 read error %d\n", error); + return error; +} + +/* + * tvp7002_write() - Write a value to a register in TVP7002 + * @sd: ptr to v4l2_subdev struct + * @addr: TVP7002 register address + * @value: value to be written to the register + * + * Write a value to a register in an TVP7002 decoder device. + * Returns zero if successful, or non-zero otherwise. + */ +static int tvp7002_write(struct v4l2_subdev *sd, u8 addr, u8 value) +{ + struct i2c_client *c = v4l2_get_subdevdata(sd); + int retry; + int error; + + for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { + error = i2c_smbus_write_byte_data(c, addr, value); + + if (error >= 0) + return 0; + msleep_interruptible(10); + } + v4l2_err(sd, "TVP7002 write error %d\n", error); + return error; +} + +/* + * dump_reg_range() - Dump information from TVP7002 registers + * @sd: ptr to v4l2_subdev struct + * @init: TVP7002 start address + * @end: TVP7002 end address + * + * Dump values at a specified register range + * Returns nothing. + */ +static void dump_reg_range(struct v4l2_subdev *sd, u8 init, const u8 end) +{ + int i = 0; + int result; + + while (init != (u8)(end + 1)) { + result = tvp7002_read(sd, init); + + if (result < 0) + v4l2_err(sd, "reg 0x%02x unreadable\n", i); + else + v4l2_info(sd, "@0x%02x = %02x\n", i, result); + + init++; + i++; + } +} + +/* + * tvp7002_log_chk() - Check reading the value of a register + * @sd: ptr to v4l2_subdev struct + * @reg: register to read + * @message: register name/function + * + * Check procedure for reading a register. + * Returns nothing (void). + */ +static inline void tvp7002_log_chk(struct v4l2_subdev *sd, u8 reg, + const char *message) +{ + int res; + + res = tvp7002_read(sd, reg); + + if ((res) >= 0) + v4l2_info(sd, "%s = 0x%02x\n", message, res); +} + +/* + * tvp7002_log_status() - Print information about register settings + * @sd: ptr to v4l2_subdev struct + * + * Log register values of a TVP7002 decoder device. + * Returns zero or -EINVAL if read operation fails. + */ +static int tvp7002_log_status(struct v4l2_subdev *sd) +{ + tvp7002_log_chk(sd, TVP7002_CHIP_REV, "Chip revision number"); + tvp7002_log_chk(sd, TVP7002_HPLL_FDBK_DIV_LSBS, + "H-PLL feedback div LSB"); + tvp7002_log_chk(sd, TVP7002_HPLL_FDBK_DIV_MSBS, + "H-PLL feedback div MSB"); + tvp7002_log_chk(sd, TVP7002_HPLL_FDBK_DIV_MSBS, + "VCO freq range selector"); + tvp7002_log_chk(sd, TVP7002_HPLL_PHASE_SEL, + "ADC sampling clk phase sel"); + tvp7002_log_chk(sd, TVP7002_CLAMP_START, "Clamp start"); + tvp7002_log_chk(sd, TVP7002_CLAMP_W, "Clamp width"); + tvp7002_log_chk(sd, TVP7002_HSYNC_OUT_W, "HSYNC output width"); + tvp7002_log_chk(sd, TVP7002_B_FINE_GAIN, "Digital fine grain B ch"); + tvp7002_log_chk(sd, TVP7002_G_FINE_GAIN, "Digital fine grain G ch"); + tvp7002_log_chk(sd, TVP7002_R_FINE_GAIN, "Digital fine grain R ch"); + tvp7002_log_chk(sd, TVP7002_B_FINE_OFF_MSBS, + "Digital fine grain off B ch"); + tvp7002_log_chk(sd, TVP7002_G_FINE_OFF_MSBS, + "Digital fine grain off G ch"); + tvp7002_log_chk(sd, TVP7002_R_FINE_OFF_MSBS, + "Digital fine grain off R ch"); + tvp7002_log_chk(sd, TVP7002_FINE_OFF_LSBS, "Dig fine grain off LSBs"); + tvp7002_log_chk(sd, TVP7002_SYNC_CTL_1, "Sync control 1"); + tvp7002_log_chk(sd, TVP7002_HPLL_AND_CLAMP_CTL, + "H-PLL and clamp control"); + tvp7002_log_chk(sd, TVP7002_SYNC_ON_G_THRS, "Sync-On-Green threshold"); + tvp7002_log_chk(sd, TVP7002_SYNC_SEPARATOR_THRS, + "Sync separator thrshold"); + tvp7002_log_chk(sd, TVP7002_HPLL_PRE_COAST, "H-PLL pre-coast"); + tvp7002_log_chk(sd, TVP7002_HPLL_POST_COAST, "H-PLL post-coast"); + tvp7002_log_chk(sd, TVP7002_SYNC_DETECT_STAT, "Sync detect status"); + tvp7002_log_chk(sd, TVP7002_OUT_FORMATTER, "Output formatter"); + tvp7002_log_chk(sd, TVP7002_MISC_CTL_1, "Miscelaneous control 1"); + tvp7002_log_chk(sd, TVP7002_MISC_CTL_2, "Miscelaneous control 2"); + tvp7002_log_chk(sd, TVP7002_MISC_CTL_3, "Miscelaneous control 3"); + tvp7002_log_chk(sd, TVP7002_IN_MUX_SEL_1, "Input Mux Selector 1"); + tvp7002_log_chk(sd, TVP7002_IN_MUX_SEL_2, "Input Mux Selector 2"); + tvp7002_log_chk(sd, TVP7002_B_AND_G_COARSE_GAIN, "B, G coarse gain"); + tvp7002_log_chk(sd, TVP7002_R_COARSE_GAIN, "R coarse gain"); + tvp7002_log_chk(sd, TVP7002_B_COARSE_OFF, "Coarse offset for B ch"); + tvp7002_log_chk(sd, TVP7002_G_COARSE_OFF, "Coarse offset for G ch"); + tvp7002_log_chk(sd, TVP7002_R_COARSE_OFF, "Coarse offset for R ch"); + tvp7002_log_chk(sd, TVP7002_HSOUT_OUT_START, + "HSYNC lead edge out start"); + tvp7002_log_chk(sd, TVP7002_MISC_CTL_4, "Miscelaneous control 4"); + tvp7002_log_chk(sd, TVP7002_B_DGTL_ALC_OUT_LSBS, + "Flt ALC out B ch LSBs"); + tvp7002_log_chk(sd, TVP7002_G_DGTL_ALC_OUT_LSBS, + "Flt ALC out G ch LSBs"); + tvp7002_log_chk(sd, TVP7002_R_DGTL_ALC_OUT_LSBS, + "Flt ALC out R ch LSBs"); + tvp7002_log_chk(sd, TVP7002_AUTO_LVL_CTL_ENABLE, + "Auto level ctrl enable"); + tvp7002_log_chk(sd, TVP7002_DGTL_ALC_OUT_MSBS, + "Filt ALC out RGB chs MSB"); + tvp7002_log_chk(sd, TVP7002_AUTO_LVL_CTL_FILTER, + "Auto level ctrl filter"); + tvp7002_log_chk(sd, TVP7002_FINE_CLAMP_CTL, "Fine clamp control"); + tvp7002_log_chk(sd, TVP7002_PWR_CTL, "Power control"); + tvp7002_log_chk(sd, TVP7002_ADC_SETUP, "ADC setup"); + tvp7002_log_chk(sd, TVP7002_COARSE_CLAMP_CTL, "Coarse clamp ctrl"); + tvp7002_log_chk(sd, TVP7002_SOG_CLAMP, "Sync-On-Green clamp"); + tvp7002_log_chk(sd, TVP7002_RGB_COARSE_CLAMP_CTL, + "RGB coarse clamp ctrl"); + tvp7002_log_chk(sd, TVP7002_SOG_COARSE_CLAMP_CTL, + "SOG coarse clamp ctrl"); + tvp7002_log_chk(sd, TVP7002_ALC_PLACEMENT, "ALC placement"); + tvp7002_log_chk(sd, TVP7002_MVIS_STRIPPER_W, + "Macrovision stripper width"); + tvp7002_log_chk(sd, TVP7002_SYNC_BYPASS, "Sync bypass"); + tvp7002_log_chk(sd, TVP7002_L_FRAME_STAT_LSBS, + "Lines p Frame status LSBs"); + tvp7002_log_chk(sd, TVP7002_L_FRAME_STAT_MSBS, + "Lines p Frame status MSBs"); + tvp7002_log_chk(sd, TVP7002_CLK_L_STAT_LSBS, "Clks p line stat LSBs"); + tvp7002_log_chk(sd, TVP7002_CLK_L_STAT_MSBS, "Clks p line stat MSBs"); + tvp7002_log_chk(sd, TVP7002_HSYNC_W, "HSYNC width"); + tvp7002_log_chk(sd, TVP7002_VSYNC_W, "VSYNC width"); + tvp7002_log_chk(sd, TVP7002_L_LENGTH_TOL, "Line length tolerance"); + tvp7002_log_chk(sd, TVP7002_VIDEO_BWTH_CTL, "Video bandwth control"); + tvp7002_log_chk(sd, TVP7002_AVID_START_PIXEL_LSBS, + "AVID start pixel LSBs"); + tvp7002_log_chk(sd, TVP7002_AVID_START_PIXEL_MSBS, + "AVID start pixel MSBs"); + tvp7002_log_chk(sd, TVP7002_AVID_STOP_PIXEL_LSBS, + "AVID stop pixel LSBs"); + tvp7002_log_chk(sd, TVP7002_AVID_STOP_PIXEL_MSBS, + "AVID stop pixel MSBs"); + tvp7002_log_chk(sd, TVP7002_VBLK_F_0_START_L_OFF, + "VBLK start line off 0"); + tvp7002_log_chk(sd, TVP7002_VBLK_F_1_START_L_OFF, + "VBLK start line off 1"); + tvp7002_log_chk(sd, TVP7002_VBLK_F_0_DURATION, "VBLK duration 0"); + tvp7002_log_chk(sd, TVP7002_VBLK_F_1_DURATION, "VBLK duration 1"); + tvp7002_log_chk(sd, TVP7002_FBIT_F_0_START_L_OFF, + "FBIT start line off 0"); + tvp7002_log_chk(sd, TVP7002_FBIT_F_1_START_L_OFF, + "FBIT start line off 1"); + tvp7002_log_chk(sd, TVP7002_YUV_Y_G_COEF_LSBS, "YUV Y G LSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_Y_G_COEF_MSBS, "YUV Y G MSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_Y_B_COEF_LSBS, "YUV Y B LSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_Y_B_COEF_MSBS, "YUV Y B MSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_Y_R_COEF_LSBS, "YUV Y R LSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_Y_R_COEF_MSBS, "YUV Y R MSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_U_G_COEF_LSBS, "YUV U G LSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_U_G_COEF_MSBS, "YUV U G MSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_U_B_COEF_LSBS, "YUV U B LSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_U_B_COEF_MSBS, "YUV U B MSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_U_R_COEF_LSBS, "YUV U R LSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_U_R_COEF_MSBS, "YUV U R MSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_V_G_COEF_LSBS, "YUV V G LSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_V_G_COEF_MSBS, "YUV V G MSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_V_B_COEF_LSBS, "YUV V B LSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_V_B_COEF_MSBS, "YUV V B MSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_V_R_COEF_LSBS, "YUV V R LSBs"); + tvp7002_log_chk(sd, TVP7002_YUV_V_R_COEF_MSBS, "YUV V R MSBs"); + + return 0; +} + +/* + * tvp7002_g_chip_ident() - Get chip identification number + * @sd: ptr to v4l2_subdev struct + * @chip: ptr to v4l2_dbg_chip_ident struct + * + * Obtains the chip's identification number. + * Returns zero or -EINVAL if read operation fails. + */ +static int tvp7002_g_chip_ident(struct v4l2_subdev *sd, + struct v4l2_dbg_chip_ident *chip) +{ + int rev; + struct i2c_client *client = v4l2_get_subdevdata(sd); + + rev = tvp7002_read(sd, TVP7002_CHIP_REV); + + if (rev < 0) + return -EINVAL; + + return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVP7002, + rev); +} + +/* + * tvp7002_write_inittab() - Write initialization values + * @sd: ptr to v4l2_subdev struct + * @regs: ptr to i2c_reg_value struct + * + * Write initialization values. + * Returns zero or -EINVAL if read operation fails. + */ +static int tvp7002_write_inittab(struct v4l2_subdev *sd, + const struct i2c_reg_value *regs) +{ + int i; + int error; + + /* Initialize the first (defined) registers */ + while (regs->reg != 0x5c) { + error = tvp7002_write(sd, regs->reg, regs->value); + if (error < 0) + return -EINVAL; + regs++; + } + /* Initialize the last unnamed registers */ + for (i = 0x5c; i <= 0xff; i++) { + error = tvp7002_write(sd, i, 0x00); + if (error < 0) + return -EINVAL; + regs++; + } + + return 0; +} + +/* + * tvp7002_write_err() - Write a register value with error code + * @sd: pointer to standard V4L2 sub-device structure + * @reg: destination register + * @val: value to be written + * @error: pointer to error value + * + * Write a value in a register and save error value in + */ +static inline void tvp7002_write_err(struct v4l2_subdev *sd, u8 reg, + u8 val, int *err) +{ + if (!*err) + *err = tvp7002_write(sd, reg, val); +} + +/* + * tvp7002_set_video_mode() - Set video mode + * @sd: pointer to standard V4L2 sub-device structure + * @sdf: index to structure describing format + * + * Set video standard according to index + * Returns 0 if operation is successful or -EINVAL otherwise + */ +static int tvp7002_set_video_mode(struct v4l2_subdev *sd, int sdf) +{ + int error = 0; + + if (sdf < TVP7002_STD_480I || sdf > TVP7002_STD_1080P_50) { + v4l2_err(sd, "sf out of range\n"); + return -ERANGE; + } + + /* Print specific information about current format */ + v4l2_info(sd, "Setting standard display format...\n"); + v4l2_info(sd, "hres = %d vres=%d fr=%d lr=%d prate=%d\n", + tvp7002_resolutions[sdf].hres, + tvp7002_resolutions[sdf].vres, + tvp7002_resolutions[sdf].frate, + tvp7002_resolutions[sdf].lrate, + tvp7002_resolutions[sdf].prate); + + /* Set registers accordingly */ + tvp7002_write_err(sd, TVP7002_HPLL_FDBK_DIV_MSBS, + tvp7002_resolutions[sdf].reg01, &error); + tvp7002_write_err(sd, TVP7002_HPLL_FDBK_DIV_LSBS, + tvp7002_resolutions[sdf].reg02, &error); + tvp7002_write_err(sd, TVP7002_HPLL_CRTL, + tvp7002_resolutions[sdf].reg03, &error); + tvp7002_write_err(sd, TVP7002_HPLL_PHASE_SEL, + tvp7002_resolutions[sdf].reg04, &error); + + /* Set SD/HD mode registers */ + if (sdf < TVP7002_STD_720P_60) { + tvp7002_write_err(sd, TVP7002_CLAMP_START, 0x06, &error); + tvp7002_write_err(sd, TVP7002_CLAMP_W, 0x10, &error); + tvp7002_write_err(sd, TVP7002_HPLL_PRE_COAST, 0x03, &error); + tvp7002_write_err(sd, TVP7002_HPLL_POST_COAST, 0x03, &error); + tvp7002_write_err(sd, TVP7002_IN_MUX_SEL_2, 0x17, &error); + + if (sdf < TVP7002_STD_480P) { + tvp7002_write_err(sd, TVP7002_HSOUT_OUT_START, 0x0c, + &error); + tvp7002_write_err(sd, TVP7002_MVIS_STRIPPER_W, 0x24, + &error); + } else { + tvp7002_write_err(sd, TVP7002_HSOUT_OUT_START, 0x0a, + &error); + tvp7002_write_err(sd, TVP7002_MVIS_STRIPPER_W, 0x12, + &error); + } + tvp7002_write_err(sd, TVP7002_MISC_CTL_4, 0x08, &error); + tvp7002_write_err(sd, TVP7002_ALC_PLACEMENT, 0x18, &error); + } else { + tvp7002_write_err(sd, TVP7002_CLAMP_START, 0x32, &error); + tvp7002_write_err(sd, TVP7002_CLAMP_W, 0x20, &error); + tvp7002_write_err(sd, TVP7002_HPLL_PRE_COAST, 0x01, &error); + tvp7002_write_err(sd, TVP7002_HPLL_POST_COAST, 0x00, &error); + tvp7002_write_err(sd, TVP7002_IN_MUX_SEL_2, 0xc7, &error); + + if (sdf < TVP7002_STD_1080I_60) + tvp7002_write_err(sd, TVP7002_HSOUT_OUT_START, + 0x35, &error); + else + tvp7002_write_err(sd, TVP7002_HSOUT_OUT_START, + 0x39, &error); + + tvp7002_write_err(sd, TVP7002_MISC_CTL_4, 0x00, &error); + tvp7002_write_err(sd, TVP7002_ALC_PLACEMENT, 0x5a, &error); + + if (sdf < TVP7002_STD_1080P_60) + tvp7002_write_err(sd, TVP7002_MVIS_STRIPPER_W, + 0x07, &error); + else + tvp7002_write_err(sd, TVP7002_MVIS_STRIPPER_W, + 0x03, &error); + } + if (sdf < TVP7002_STD_1080P_60) { + tvp7002_write_err(sd, TVP7002_ADC_SETUP, 0x50, &error); + tvp7002_write_err(sd, TVP7002_VIDEO_BWTH_CTL, 0x0f, &error); + } else { + tvp7002_write_err(sd, TVP7002_ADC_SETUP, 0x80, &error); + tvp7002_write_err(sd, TVP7002_VIDEO_BWTH_CTL, 0x00, &error); + } + /* Set up registers that hold the same value regardless of the + * SD mode + */ + tvp7002_write_err(sd, TVP7002_SYNC_ON_G_THRS, 0x5d, &error); + tvp7002_write_err(sd, TVP7002_SYNC_SEPARATOR_THRS, 0x40, &error); + tvp7002_write_err(sd, TVP7002_MISC_CTL_2, 0x00, &error); + tvp7002_write_err(sd, TVP7002_MISC_CTL_3, 0x01, &error); + tvp7002_write_err(sd, TVP7002_IN_MUX_SEL_1, 0x00, &error); + tvp7002_write_err(sd, TVP7002_VSYNC_ALGN, 0x00, &error); + tvp7002_write_err(sd, TVP7002_L_LENGTH_TOL, 0x06, &error); + tvp7002_write_err(sd, TVP7002_SYNC_SEPARATOR_THRS, 0x40, &error); + tvp7002_write_err(sd, TVP7002_MISC_CTL_2, 0x00, &error); + tvp7002_write_err(sd, TVP7002_MISC_CTL_3, 0x01, &error); + tvp7002_write_err(sd, TVP7002_IN_MUX_SEL_1, 0x00, &error); + tvp7002_write_err(sd, TVP7002_VSYNC_ALGN, 0x00, &error); + tvp7002_write_err(sd, TVP7002_L_LENGTH_TOL, 0x06, &error); + return error; +} + +/* + * tvp7002_get_video_mode() - V4L2 decoder interface handler for querystd + * @sd: pointer to standard V4L2 sub-device structure + * + * Returns the current standard detected by TVP7002. If no active input is + * detected, returns -1 + */ +static v4l2_std_id tvp7002_get_video_mode(struct v4l2_subdev *sd) +{ + int reg01, reg02, reg03; + + reg01 = tvp7002_read(sd, TVP7002_HPLL_FDBK_DIV_MSBS); + reg02 = tvp7002_read(sd, TVP7002_HPLL_FDBK_DIV_LSBS); + reg03 = tvp7002_read(sd, TVP7002_HPLL_CRTL); + + if (reg01 < 0 || reg02 < 0 || reg03 < 0) + return V4L2_STD_UNKNOWN; + + switch (reg01) { + case 0x35: + if (reg02 == 0xa0) + return V4L2_STD_NTSC; + else + return V4L2_STD_PAL; + case 0x36: + if (reg02 == 0xa0) + return V4L2_STD_525P_60; + else + return V4L2_STD_625P_50; + case 0x67: + return V4L2_STD_720P_60; + case 0x7b: + return V4L2_STD_720P_50; + case 0x89: + if (reg03 == 0x98) + return V4L2_STD_1080I_60; + else + return V4L2_STD_1080P_60; + break; + case 0xa5: + if (reg03 == 0x90) + return V4L2_STD_1080I_50; + else + return V4L2_STD_1080P_50; + default: + return V4L2_STD_UNKNOWN; + } +} + +/* + * tvp7002_querystd() - V4L2 decoder interface handler for querystd + * @sd: pointer to standard V4L2 sub-device structure + * @std_id: standard V4L2 std_id ioctl enum + * + * Returns the current standard detected by TVP7002. If no active input is + * detected, returns -EINVAL + */ +static int tvp7002_querystd(struct v4l2_subdev *sd, v4l2_std_id *std_id) +{ + v4l2_std_id current_std; + u8 sync_lock_status; + int res; + + if (std_id == NULL) + return -EINVAL; + + /* get the current standard */ + res = tvp7002_get_video_mode(sd); + if (res == V4L2_STD_UNKNOWN) + return -EINVAL; + current_std = res; + + /* check whether signal is locked */ + sync_lock_status = tvp7002_read(sd, TVP7002_SYNC_DETECT_STAT); + + if (0x02 != (sync_lock_status & 0xff)) + return -EINVAL; /* No input detected */ + + *std_id = current_std; + + v4l2_dbg(1, debug, sd, "Current STD: %d %d @ %d Hz\n", + tvp7002_resolutions[tvp7002_from_std(current_std)].hres, + tvp7002_resolutions[tvp7002_from_std(current_std)].vres, + tvp7002_resolutions[tvp7002_from_std(current_std)].frate); + return 0; +} + +/* + * tvp7002_try_fmt_cap() - V4L2 decoder interface handler for try_fmt + * @sd: pointer to standard V4L2 sub-device structure + * @f: pointer to standard V4L2 VIDIOC_TRY_FMT ioctl structure + * + * Implement the VIDIOC_TRY_FMT ioctl for the CAPTURE buffer type. This + * ioctl is used to negotiate the image capture size and pixel format + * without actually making it take effect. + */ +static int tvp7002_try_fmt_cap(struct v4l2_subdev *sd, struct v4l2_format *f) +{ + struct v4l2_pix_format *pix; + v4l2_std_id current_std; + int res; + + if (f == NULL) + return -EINVAL; + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + /* only capture is supported */ + return -EINVAL; + + pix = &f->fmt.pix; + + /* Calculate height and width based on current standard */ + res = tvp7002_get_video_mode(sd); + if (res < 0) + return -EINVAL; + current_std = res; + + pix->width = NUM_ACTIVE_PIXELS(current_std); + pix->height = NUM_ACTIVE_LINES(current_std); + + pix->pixelformat = V4L2_PIX_FMT_UYVY; + + pix->field = V4L2_FIELD_INTERLACED; + pix->bytesperline = pix->width * 2; + pix->sizeimage = pix->bytesperline * pix->height; + pix->colorspace = V4L2_COLORSPACE_REC709; + pix->priv = 0; + + v4l2_dbg(1, debug, sd, "Try FMT: pixelformat - %s, bytesperline - %d" + "Width - %d, Height - %d", + "8-bit UYVY 4:2:2 Format", pix->bytesperline, + pix->width, pix->height); + return 0; +} + +/** + * tvp7002_s_fmt_cap() - V4L2 decoder interface handler for s_fmt + * @sd: pointer to standard V4L2 sub-device structure + * @f: pointer to standard V4L2 VIDIOC_S_FMT ioctl structure + * + * If the requested format is supported, configures the HW to use that + * format, returns error code if format not supported or HW can't be + * correctly configured. + */ +static int tvp7002_s_fmt_cap(struct v4l2_subdev *sd, struct v4l2_format *f) +{ + struct tvp7002 *decoder = to_tvp7002(sd); + struct v4l2_pix_format *pix; + int rval; + + if (f == NULL) + return -EINVAL; + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + /* only capture is supported */ + return -EINVAL; + + pix = &f->fmt.pix; + rval = tvp7002_try_fmt_cap(sd, f); + if (rval) + return rval; + + decoder->pix = *pix; + + return rval; +} + +/* + * tvp7002_g_fmt() - V4L2 decoder interface handler for tvp7002_g_fmt + * @sd: pointer to standard V4L2 sub-device structure + * @f: pointer to standard V4L2 v4l2_format structure + * + * Returns the decoder's current pixel format in the v4l2_format + * parameter. + */ +static int tvp7002_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *f) +{ + struct tvp7002 *decoder = to_tvp7002(sd); + + if (f == NULL) + return -EINVAL; + + if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + /* only capture is supported */ + return -EINVAL; + + f->fmt.pix = decoder->pix; + + v4l2_dbg(1, debug, sd, "Current FMT: bytesperline - %d" + "Width - %d, Height - %d", + decoder->pix.bytesperline, + decoder->pix.width, decoder->pix.height); + return 0; +} + +/* + * tvp7002_s_ctrl() - Set a control + * @sd: ptr to v4l2_subdev struct + * @ctrl: ptr to v4l2_control struct + * + * Set a control for a TVP7002 decoder device. + * Returns zero when successful or -EINVAL if register access fails. + */ +static int tvp7002_s_std(struct v4l2_subdev *sd, v4l2_std_id std) +{ + struct tvp7002 *decoder = to_tvp7002(sd); + int vmd = 0; + + decoder->video_mode = std; + vmd = tvp7002_from_std(std); + + v4l2_dbg(1, debug, sd, "Set video std mode to %llx.\n", std); + + return tvp7002_set_video_mode(sd, vmd); +} + +/* + * tvp7002_g_ctrl() - Get a control + * @sd: ptr to v4l2_subdev struct + * @ctrl: ptr to v4l2_control struct + * + * Get a control for a TVP7002 decoder device. + * Returns zero when successful or -EINVAL if register access fails. + */ +static int tvp7002_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + int rval, gval, bval; + int res; + + v4l2_info(sd, "g_ctrl called\n"); + + switch (ctrl->id) { + case V4L2_CID_GAIN: + rval = tvp7002_read(sd, TVP7002_R_FINE_GAIN); + gval = tvp7002_read(sd, TVP7002_G_FINE_GAIN); + bval = tvp7002_read(sd, TVP7002_B_FINE_GAIN); + + if (rval < 0 || gval < 0 || bval < 0) { + res = -1; + } else if (rval != gval || rval != bval) { + res = -1; + } else { + ctrl->value = rval & 0x0F; + res = ctrl->value; + } + break; + default: + res = -1; + break; + } + + return res < 0 ? res : 0; +} + +/* + * tvp7002_s_ctrl() - Set a control + * @sd: ptr to v4l2_subdev struct + * @ctrl: ptr to v4l2_control struct + * + * Set a control in TVP7002 decoder device. + * Returns zero when successful or -EINVAL if register access fails. + */ +static int tvp7002_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) +{ + int rval, gval, bval; + int error; + u8 i, n; + n = ARRAY_SIZE(tvp7002_qctrl); + + for (i = 0; i < n; i++) + if (ctrl->id == tvp7002_qctrl[i].id) + break; + + if (i == n) + return -EINVAL; + + if (ctrl->value < tvp7002_qctrl[i].minimum || + ctrl->value > tvp7002_qctrl[i].maximum) + return -ERANGE; + + switch (ctrl->id) { + case V4L2_CID_GAIN: + rval = tvp7002_write(sd, TVP7002_R_FINE_GAIN, + ctrl->value & 0xff); + gval = tvp7002_write(sd, TVP7002_G_FINE_GAIN, + ctrl->value & 0xff); + bval = tvp7002_write(sd, TVP7002_B_FINE_GAIN, + ctrl->value & 0xff); + if (rval < 0 || gval < 0 || bval < 0) + error = -1; + else + error = rval; + break; + default: + error = -1; + break; + } + + return error < 0 ? -EINVAL : 0; +} + +/* + * tvp7002_g_register() - Get the value of a register + * @sd: ptr to v4l2_subdev struct + * @vreg: ptr to v4l2_dbg_register struct + * + * Get the value of a TVP7002 decoder device register. + * Returns zero when successful, -EINVAL if register read fails or + * access to I2C client fails, -EPERM if the call is not allowed + * by diabled CAP_SYS_ADMIN. + */ +#ifdef CONFIG_VIDEO_ADV_DEBUG +static int tvp7002_g_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (!v4l2_chip_match_i2c_client(client, ®->match)) + return -EINVAL; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + return reg->val < 0 ? -EINVAL : 0; +} + +/* + * tvp7002_s_register() - set a control + * @sd: ptr to v4l2_subdev struct + * @ctrl: ptr to v4l2_control struct + * + * Get the value of a TVP7002 decoder device register. + * Returns zero when successful or -EINVAL if register read fails. + */ +static int tvp7002_s_register(struct v4l2_subdev *sd, + struct v4l2_dbg_register *reg) +{ + int wres; + struct i2c_client *client = v4l2_get_subdevdata(sd); + + if (!v4l2_chip_match_i2c_client(client, ®->match)) + return -EINVAL; + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + wres = tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff); + + return wres < 0 ? -EINVAL : 0; +} +#endif + +/* + * tvp7002_queryctrl() - Query a control + * @sd: ptr to v4l2_subdev struct + * @ctrl: ptr to v4l2_queryctrl struct + * + * Query a control of a TVP7002 decoder device. + * Returns zero when successful or -EINVAL if register read fails. + */ +static int tvp7002_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) +{ + int i, error; + error = -EINVAL; + + v4l2_info(sd, "queryctrl called\n"); + + for (i = 0; i < ARRAY_SIZE(tvp7002_qctrl); i++) + if (qc->id && qc->id == tvp7002_qctrl[i].id) { + v4l2_ctrl_query_fill(qc, tvp7002_qctrl[i].minimum, + tvp7002_qctrl[i].maximum, + tvp7002_qctrl[i].step, + tvp7002_qctrl[i].default_value); + error = 0; + break; + } + + return error; +} + +/* + * tvp7002_s_stream() - V4L2 decoder i/f handler for s_stream + * @sd: pointer to standard V4L2 sub-device structure + * @enable: streaming enable or disable + * + * Sets streaming to enable or disable, if possible. + */ +static int tvp7002_s_stream(struct v4l2_subdev *sd, int enable) +{ + int err = 0; + struct tvp7002 *decoder = to_tvp7002(sd); + + if (decoder->streaming == enable) + return 0; + + if (enable) { + /* Power Up Sequence */ + err = tvp7002_write(sd, TVP7002_PWR_CTL, 0x00); + if (err) { + v4l2_err(sd, "Unable to turn on decoder\n"); + err = -EINVAL; + } + err = tvp7002_write_inittab(sd, tvp7002_init_default); + if (err < 0) { + v4l2_err(sd, "Unable to initialize\n"); + err = -EINVAL; + } + /* Detect if not already detected */ + err = tvp7002_read(sd, TVP7002_CHIP_REV); + if (err < 0) { + v4l2_err(sd, "Unable to detect decoder\n"); + err = -EINVAL; + } + decoder->streaming = enable; + } else { + /* Power Down Sequence */ + err = tvp7002_write(sd, TVP7002_PWR_CTL, 0x40); + if (err) { + v4l2_err(sd, "Unable to turn off decoder\n"); + return err; + } + decoder->streaming = enable; + } + + return err; +} + +/* Specific video subsystem operation handlers */ +static const struct v4l2_subdev_video_ops tvp7002_video_ops = { + .querystd = tvp7002_querystd, + .s_stream = tvp7002_s_stream, + .g_fmt = tvp7002_g_fmt, +}; + +/* V4L2 Operations handlers */ +static const struct v4l2_subdev_core_ops tvp7002_core_ops = { + .g_chip_ident = tvp7002_g_chip_ident, + .log_status = tvp7002_log_status, + .g_ctrl = tvp7002_g_ctrl, + .s_ctrl = tvp7002_s_ctrl, + .queryctrl = tvp7002_queryctrl, + .s_std = tvp7002_s_std, +#ifdef CONFIG_VIDEO_ADV_DEBUG + .g_register = tvp7002_g_register, + .s_register = tvp7002_s_register, +#endif +}; + +static const struct v4l2_subdev_ops tvp7002_ops = { + .core = &tvp7002_core_ops, + .video = &tvp7002_video_ops, +}; + +/* Default driver settings */ +static struct tvp7002 tvp7002_dev = { + .streaming = 0, + + .pix = { + .width = 720, + .height = 480, + .pixelformat = V4L2_PIX_FMT_UYVY, + .field = V4L2_FIELD_INTERLACED, + .bytesperline = 720 * 2, + .sizeimage = 720 * 2 * 480, + .colorspace = V4L2_COLORSPACE_SMPTE170M, + }, + + .video_mode = V4L2_STD_NTSC, +}; + +/* + * tvp7002_reset - Reset a TVP7002 device + * @sd: ptr to v4l2_subdev struct + * @val: unsigned integer (not used) + * + * Reset the TVP7002 device + * Returns zero when successful or -EINVAL if register read fails. + */ +static int tvp7002_reset(struct v4l2_subdev *sd, u32 val) +{ + struct tvp7002 *core = to_tvp7002(sd); + int polarity; + int error; + + error = tvp7002_read(sd, TVP7002_CHIP_REV); + if (error < 0) { + error = -EINVAL; + goto found_error; + } + + if (error == 0x02) { + v4l2_info(sd, "rev. %02x detected.\n", error); + } else { + v4l2_info(sd, "unknown revision detected.\n"); + v4l2_info(sd, "revision number is %02x\n", error); + } + + /* Initializes TVP7002 to its default values */ + error = tvp7002_write_inittab(sd, tvp7002_init_default); + if (error < 0) { + error = -EINVAL; + goto found_error; + } + + /* Set polarity information after registers have been set */ + polarity = 0x5b | core->pdata->hs_polarity << 5 + | core->pdata->vs_polarity << 2; + error = tvp7002_write(sd, TVP7002_SYNC_CTL_1, polarity); + if (error < 0) { + error = -EINVAL; + goto found_error; + } + + polarity = 0x0 | core->pdata->fid_polarity << 2 + | core->pdata->sog_polarity << 1 + | core->pdata->clk_polarity; + error = tvp7002_write(sd, TVP7002_MISC_CTL_3, polarity); + if (error < 0) { + error = -EINVAL; + goto found_error; + } + +found_error: + return error; +}; + +/* + * tvp7002_probe - Reset a TVP7002 device + * @sd: ptr to v4l2_subdev struct + * @ctrl: ptr to i2c_device_id struct + * + * Reset the TVP7002 device + * Returns zero when successful or -EINVAL if register read fails. + */ +static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id) +{ + struct v4l2_subdev *sd; + struct tvp7002 *core; + int polarity; + int error; + + /* Check if the adapter supports the needed features */ + if (!i2c_check_functionality(c->adapter, + I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) + return -EIO; + + if (!c->dev.platform_data) { + v4l2_err(c, "No platform data!!\n"); + return -ENODEV; + } + + core = kzalloc(sizeof(struct tvp7002), GFP_KERNEL); + + if (!core) + return -ENOMEM; + + *core = tvp7002_dev; + sd = &core->sd; + core->pdata = c->dev.platform_data; + + v4l2_i2c_subdev_init(sd, c, &tvp7002_ops); + v4l_info(c, "tvp7002 found @ 0x%02x (%s)\n", + c->addr << 1, c->adapter->name); + + /* Initializes TVP7002 to its default values */ + error = tvp7002_write_inittab(sd, tvp7002_init_default); + if (error < 0) { + error = -EINVAL; + goto found_error; + } + + /* Set polarity information after registers have been set */ + polarity = 0x5b | core->pdata->hs_polarity << 5 + | core->pdata->vs_polarity << 2; + error = tvp7002_write(sd, TVP7002_SYNC_CTL_1, polarity); + if (error < 0) { + error = -EINVAL; + goto found_error; + } + + polarity = 0x0 | core->pdata->fid_polarity << 2 + | core->pdata->sog_polarity << 1 + | core->pdata->clk_polarity; + error = tvp7002_write(sd, TVP7002_MISC_CTL_3, polarity); + if (error < 0) { + error = -EINVAL; + goto found_error; + } + + if (debug > 1) + tvp7002_log_status(sd); + +found_error: + if (error < 0) + kfree(core); + + return error; +} + +/* + * tvp7002_remove - Remove TVP7002 device support + * @c: ptr to i2c_client struct + * + * Reset the TVP7002 device + * Returns zero when successful or -EINVAL if register read fails. + */ +static int tvp7002_remove(struct i2c_client *c) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(c); + + v4l2_dbg(1, debug, sd, "removing tvp7002 adapter" + "on address 0x%x\n", c->addr << 1); + + v4l2_device_unregister_subdev(sd); + kfree(to_tvp7002(sd)); + return 0; +} + +/* I2C Device ID table */ +static const struct i2c_device_id tvp7002_id[] = { + { "tvp7002", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, tvp7002_id); + +/* I2C driver data */ +static struct i2c_driver tvp7002_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "tvp7002", + }, + .probe = tvp7002_probe, + .remove = tvp7002_remove, + .id_table = tvp7002_id, +}; + +/* + * tvp7002_init - Initialize driver via I2C interface + * + * Register the TVP7002 driver. + * Returns 0 on success or < 0 on failure. + */ +static int __init tvp7002_init(void) +{ + return i2c_add_driver(&tvp7002_driver); +} + +/* + * tvp7002_exit - Remove driver via I2C interface + * + * Unregister the TVP7002 driver. + * Returns 0 on success or < 0 on failure. + */ +static void __exit tvp7002_exit(void) +{ + i2c_del_driver(&tvp7002_driver); +} + +module_init(tvp7002_init); +module_exit(tvp7002_exit);