drivers/media/video/tvp7002.c

   1 /* Texas Instruments Triple 8-/10-BIT 165-/110-MSPS Video and Graphics
   2  * Digitizer with Horizontal PLL registers
   3  *
   4  * Copyright (C) 2009 Texas Instruments Inc
   5  * Author: Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>
   6  *
   7  * This code is partially based upon the TVP5150 driver
   8  * written by Mauro Carvalho Chehab (mchehab@infradead.org),
   9  * the TVP514x driver written by Vaibhav Hiremath <hvaibhav@ti.com>
  10  * and the TVP7002 driver in the TI LSP 2.10.00.14. Revisions by
  11  * Muralidharan Karicheri and Snehaprabha Narnakaje (TI).
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  26  */
  27 #include <linux/delay.h>
  28 #include <linux/i2c.h>
  29 #include <linux/slab.h>
  30 #include <linux/videodev2.h>
  31 #include <media/tvp7002.h>
  32 #include <media/v4l2-device.h>
  33 #include <media/v4l2-chip-ident.h>
  34 #include <media/v4l2-common.h>
  35 #include <media/v4l2-ctrls.h>
  36 #include "tvp7002_reg.h"
  37
  38 MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver");
  39 MODULE_AUTHOR("Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>");
  40 MODULE_LICENSE("GPL");
  41
  42 /* Module Name */
  43 #define TVP7002_MODULE_NAME     "tvp7002"
  44
  45 /* I2C retry attempts */
  46 #define I2C_RETRY_COUNT         (5)
  47
  48 /* End of registers */
  49 #define TVP7002_EOR             0x5c
  50
  51 /* Read write definition for registers */
  52 #define TVP7002_READ            0
  53 #define TVP7002_WRITE           1
  54 #define TVP7002_RESERVED        2
  55
  56 /* Interlaced vs progressive mask and shift */
  57 #define TVP7002_IP_SHIFT        5
  58 #define TVP7002_INPR_MASK       (0x01 << TVP7002_IP_SHIFT)
  59
  60 /* Shift for CPL and LPF registers */
  61 #define TVP7002_CL_SHIFT        8
  62 #define TVP7002_CL_MASK         0x0f
  63
  64 /* Debug functions */
  65 static int debug;
  66 module_param(debug, bool, 0644);
  67 MODULE_PARM_DESC(debug, "Debug level (0-2)");
  68
  69 /* Structure for register values */
  70 struct i2c_reg_value {
  71         u8 reg;
  72         u8 value;
  73         u8 type;
  74 };
  75
  76 /*
  77  * Register default values (according to tvp7002 datasheet)
  78  * In the case of read-only registers, the value (0xff) is
  79  * never written. R/W functionality is controlled by the
  80  * writable bit in the register struct definition.
  81  */
  82 static const struct i2c_reg_value tvp7002_init_default[] = {
  83         { TVP7002_CHIP_REV, 0xff, TVP7002_READ },
  84         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE },
  85         { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE },
  86         { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE },
  87         { TVP7002_HPLL_PHASE_SEL, 0x80, TVP7002_WRITE },
  88         { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
  89         { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
  90         { TVP7002_HSYNC_OUT_W, 0x60, TVP7002_WRITE },
  91         { TVP7002_B_FINE_GAIN, 0x00, TVP7002_WRITE },
  92         { TVP7002_G_FINE_GAIN, 0x00, TVP7002_WRITE },
  93         { TVP7002_R_FINE_GAIN, 0x00, TVP7002_WRITE },
  94         { TVP7002_B_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
  95         { TVP7002_G_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
  96         { TVP7002_R_FINE_OFF_MSBS, 0x80, TVP7002_WRITE },
  97         { TVP7002_SYNC_CTL_1, 0x20, TVP7002_WRITE },
  98         { TVP7002_HPLL_AND_CLAMP_CTL, 0x2e, TVP7002_WRITE },
  99         { TVP7002_SYNC_ON_G_THRS, 0x5d, TVP7002_WRITE },
 100         { TVP7002_SYNC_SEPARATOR_THRS, 0x47, TVP7002_WRITE },
 101         { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE },
 102         { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
 103         { TVP7002_SYNC_DETECT_STAT, 0xff, TVP7002_READ },
 104         { TVP7002_OUT_FORMATTER, 0x47, TVP7002_WRITE },
 105         { TVP7002_MISC_CTL_1, 0x01, TVP7002_WRITE },
 106         { TVP7002_MISC_CTL_2, 0x00, TVP7002_WRITE },
 107         { TVP7002_MISC_CTL_3, 0x01, TVP7002_WRITE },
 108         { TVP7002_IN_MUX_SEL_1, 0x00, TVP7002_WRITE },
 109         { TVP7002_IN_MUX_SEL_2, 0x67, TVP7002_WRITE },
 110         { TVP7002_B_AND_G_COARSE_GAIN, 0x77, TVP7002_WRITE },
 111         { TVP7002_R_COARSE_GAIN, 0x07, TVP7002_WRITE },
 112         { TVP7002_FINE_OFF_LSBS, 0x00, TVP7002_WRITE },
 113         { TVP7002_B_COARSE_OFF, 0x10, TVP7002_WRITE },
 114         { TVP7002_G_COARSE_OFF, 0x10, TVP7002_WRITE },
 115         { TVP7002_R_COARSE_OFF, 0x10, TVP7002_WRITE },
 116         { TVP7002_HSOUT_OUT_START, 0x08, TVP7002_WRITE },
 117         { TVP7002_MISC_CTL_4, 0x00, TVP7002_WRITE },
 118         { TVP7002_B_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
 119         { TVP7002_G_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
 120         { TVP7002_R_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ },
 121         { TVP7002_AUTO_LVL_CTL_ENABLE, 0x80, TVP7002_WRITE },
 122         { TVP7002_DGTL_ALC_OUT_MSBS, 0xff, TVP7002_READ },
 123         { TVP7002_AUTO_LVL_CTL_FILTER, 0x53, TVP7002_WRITE },
 124         { 0x29, 0x08, TVP7002_RESERVED },
 125         { TVP7002_FINE_CLAMP_CTL, 0x07, TVP7002_WRITE },
 126         /* PWR_CTL is controlled only by the probe and reset functions */
 127         { TVP7002_PWR_CTL, 0x00, TVP7002_RESERVED },
 128         { TVP7002_ADC_SETUP, 0x50, TVP7002_WRITE },
 129         { TVP7002_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE },
 130         { TVP7002_SOG_CLAMP, 0x80, TVP7002_WRITE },
 131         { TVP7002_RGB_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE },
 132         { TVP7002_SOG_COARSE_CLAMP_CTL, 0x04, TVP7002_WRITE },
 133         { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
 134         { 0x32, 0x18, TVP7002_RESERVED },
 135         { 0x33, 0x60, TVP7002_RESERVED },
 136         { TVP7002_MVIS_STRIPPER_W, 0xff, TVP7002_RESERVED },
 137         { TVP7002_VSYNC_ALGN, 0x10, TVP7002_WRITE },
 138         { TVP7002_SYNC_BYPASS, 0x00, TVP7002_WRITE },
 139         { TVP7002_L_FRAME_STAT_LSBS, 0xff, TVP7002_READ },
 140         { TVP7002_L_FRAME_STAT_MSBS, 0xff, TVP7002_READ },
 141         { TVP7002_CLK_L_STAT_LSBS, 0xff, TVP7002_READ },
 142         { TVP7002_CLK_L_STAT_MSBS, 0xff, TVP7002_READ },
 143         { TVP7002_HSYNC_W, 0xff, TVP7002_READ },
 144         { TVP7002_VSYNC_W, 0xff, TVP7002_READ },
 145         { TVP7002_L_LENGTH_TOL, 0x03, TVP7002_WRITE },
 146         { 0x3e, 0x60, TVP7002_RESERVED },
 147         { TVP7002_VIDEO_BWTH_CTL, 0x01, TVP7002_WRITE },
 148         { TVP7002_AVID_START_PIXEL_LSBS, 0x01, TVP7002_WRITE },
 149         { TVP7002_AVID_START_PIXEL_MSBS, 0x2c, TVP7002_WRITE },
 150         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x06, TVP7002_WRITE },
 151         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x2c, TVP7002_WRITE },
 152         { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
 153         { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
 154         { TVP7002_VBLK_F_0_DURATION, 0x1e, TVP7002_WRITE },
 155         { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
 156         { TVP7002_FBIT_F_0_START_L_OFF, 0x00, TVP7002_WRITE },
 157         { TVP7002_FBIT_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
 158         { TVP7002_YUV_Y_G_COEF_LSBS, 0xe3, TVP7002_WRITE },
 159         { TVP7002_YUV_Y_G_COEF_MSBS, 0x16, TVP7002_WRITE },
 160         { TVP7002_YUV_Y_B_COEF_LSBS, 0x4f, TVP7002_WRITE },
 161         { TVP7002_YUV_Y_B_COEF_MSBS, 0x02, TVP7002_WRITE },
 162         { TVP7002_YUV_Y_R_COEF_LSBS, 0xce, TVP7002_WRITE },
 163         { TVP7002_YUV_Y_R_COEF_MSBS, 0x06, TVP7002_WRITE },
 164         { TVP7002_YUV_U_G_COEF_LSBS, 0xab, TVP7002_WRITE },
 165         { TVP7002_YUV_U_G_COEF_MSBS, 0xf3, TVP7002_WRITE },
 166         { TVP7002_YUV_U_B_COEF_LSBS, 0x00, TVP7002_WRITE },
 167         { TVP7002_YUV_U_B_COEF_MSBS, 0x10, TVP7002_WRITE },
 168         { TVP7002_YUV_U_R_COEF_LSBS, 0x55, TVP7002_WRITE },
 169         { TVP7002_YUV_U_R_COEF_MSBS, 0xfc, TVP7002_WRITE },
 170         { TVP7002_YUV_V_G_COEF_LSBS, 0x78, TVP7002_WRITE },
 171         { TVP7002_YUV_V_G_COEF_MSBS, 0xf1, TVP7002_WRITE },
 172         { TVP7002_YUV_V_B_COEF_LSBS, 0x88, TVP7002_WRITE },
 173         { TVP7002_YUV_V_B_COEF_MSBS, 0xfe, TVP7002_WRITE },
 174         { TVP7002_YUV_V_R_COEF_LSBS, 0x00, TVP7002_WRITE },
 175         { TVP7002_YUV_V_R_COEF_MSBS, 0x10, TVP7002_WRITE },
 176         /* This signals end of register values */
 177         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 178 };
 179
 180 /* Register parameters for 480P */
 181 static const struct i2c_reg_value tvp7002_parms_480P[] = {
 182         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x35, TVP7002_WRITE },
 183         { TVP7002_HPLL_FDBK_DIV_LSBS, 0xa0, TVP7002_WRITE },
 184         { TVP7002_HPLL_CRTL, 0x02, TVP7002_WRITE },
 185         { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
 186         { TVP7002_AVID_START_PIXEL_LSBS, 0x91, TVP7002_WRITE },
 187         { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
 188         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0B, TVP7002_WRITE },
 189         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE },
 190         { TVP7002_VBLK_F_0_START_L_OFF, 0x03, TVP7002_WRITE },
 191         { TVP7002_VBLK_F_1_START_L_OFF, 0x01, TVP7002_WRITE },
 192         { TVP7002_VBLK_F_0_DURATION, 0x13, TVP7002_WRITE },
 193         { TVP7002_VBLK_F_1_DURATION, 0x13, TVP7002_WRITE },
 194         { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE },
 195         { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE },
 196         { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE },
 197         { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE },
 198         { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE },
 199         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 200 };
 201
 202 /* Register parameters for 576P */
 203 static const struct i2c_reg_value tvp7002_parms_576P[] = {
 204         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x36, TVP7002_WRITE },
 205         { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
 206         { TVP7002_HPLL_CRTL, 0x18, TVP7002_WRITE },
 207         { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
 208         { TVP7002_AVID_START_PIXEL_LSBS, 0x9B, TVP7002_WRITE },
 209         { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE },
 210         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0F, TVP7002_WRITE },
 211         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE },
 212         { TVP7002_VBLK_F_0_START_L_OFF, 0x00, TVP7002_WRITE },
 213         { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
 214         { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
 215         { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
 216         { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE },
 217         { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE },
 218         { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE },
 219         { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE },
 220         { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE },
 221         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 222 };
 223
 224 /* Register parameters for 1080I60 */
 225 static const struct i2c_reg_value tvp7002_parms_1080I60[] = {
 226         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
 227         { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE },
 228         { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
 229         { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
 230         { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
 231         { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
 232         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
 233         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
 234         { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
 235         { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
 236         { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
 237         { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
 238         { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
 239         { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
 240         { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
 241         { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
 242         { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
 243         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 244 };
 245
 246 /* Register parameters for 1080P60 */
 247 static const struct i2c_reg_value tvp7002_parms_1080P60[] = {
 248         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE },
 249         { TVP7002_HPLL_FDBK_DIV_LSBS, 0x80, TVP7002_WRITE },
 250         { TVP7002_HPLL_CRTL, 0xE0, TVP7002_WRITE },
 251         { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
 252         { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
 253         { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
 254         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
 255         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
 256         { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
 257         { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
 258         { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
 259         { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
 260         { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
 261         { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
 262         { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
 263         { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
 264         { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
 265         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 266 };
 267
 268 /* Register parameters for 1080I50 */
 269 static const struct i2c_reg_value tvp7002_parms_1080I50[] = {
 270         { TVP7002_HPLL_FDBK_DIV_MSBS, 0xa5, TVP7002_WRITE },
 271         { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE },
 272         { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
 273         { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE },
 274         { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE },
 275         { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
 276         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE },
 277         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE },
 278         { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE },
 279         { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE },
 280         { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE },
 281         { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE },
 282         { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
 283         { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
 284         { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
 285         { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
 286         { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
 287         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 288 };
 289
 290 /* Register parameters for 720P60 */
 291 static const struct i2c_reg_value tvp7002_parms_720P60[] = {
 292         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE },
 293         { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE },
 294         { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE },
 295         { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE },
 296         { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE },
 297         { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
 298         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE },
 299         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE },
 300         { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
 301         { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
 302         { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
 303         { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
 304         { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
 305         { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
 306         { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
 307         { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE },
 308         { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
 309         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 310 };
 311
 312 /* Register parameters for 720P50 */
 313 static const struct i2c_reg_value tvp7002_parms_720P50[] = {
 314         { TVP7002_HPLL_FDBK_DIV_MSBS, 0x7b, TVP7002_WRITE },
 315         { TVP7002_HPLL_FDBK_DIV_LSBS, 0xc0, TVP7002_WRITE },
 316         { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE },
 317         { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE },
 318         { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE },
 319         { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE },
 320         { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE },
 321         { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE },
 322         { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE },
 323         { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE },
 324         { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE },
 325         { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE },
 326         { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE },
 327         { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE },
 328         { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE },
 329         { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE },
 330         { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE },
 331         { TVP7002_EOR, 0xff, TVP7002_RESERVED }
 332 };
 333
 334 /* Preset definition for handling device operation */
 335 struct tvp7002_preset_definition {
 336         u32 preset;
 337         const struct i2c_reg_value *p_settings;
 338         enum v4l2_colorspace color_space;
 339         enum v4l2_field scanmode;
 340         u16 progressive;
 341         u16 lines_per_frame;
 342         u16 cpl_min;
 343         u16 cpl_max;
 344 };
 345
 346 /* Struct list for digital video presets */
 347 static const struct tvp7002_preset_definition tvp7002_presets[] = {
 348         {
 349                 V4L2_DV_720P60,
 350                 tvp7002_parms_720P60,
 351                 V4L2_COLORSPACE_REC709,
 352                 V4L2_FIELD_NONE,
 353                 1,
 354                 0x2EE,
 355                 135,
 356                 153
 357         },
 358         {
 359                 V4L2_DV_1080I60,
 360                 tvp7002_parms_1080I60,
 361                 V4L2_COLORSPACE_REC709,
 362                 V4L2_FIELD_INTERLACED,
 363                 0,
 364                 0x465,
 365                 181,
 366                 205
 367         },
 368         {
 369                 V4L2_DV_1080I50,
 370                 tvp7002_parms_1080I50,
 371                 V4L2_COLORSPACE_REC709,
 372                 V4L2_FIELD_INTERLACED,
 373                 0,
 374                 0x465,
 375                 217,
 376                 245
 377         },
 378         {
 379                 V4L2_DV_720P50,
 380                 tvp7002_parms_720P50,
 381                 V4L2_COLORSPACE_REC709,
 382                 V4L2_FIELD_NONE,
 383                 1,
 384                 0x2EE,
 385                 163,
 386                 183
 387         },
 388         {
 389                 V4L2_DV_1080P60,
 390                 tvp7002_parms_1080P60,
 391                 V4L2_COLORSPACE_REC709,
 392                 V4L2_FIELD_NONE,
 393                 1,
 394                 0x465,
 395                 90,
 396                 102
 397         },
 398         {
 399                 V4L2_DV_480P59_94,
 400                 tvp7002_parms_480P,
 401                 V4L2_COLORSPACE_SMPTE170M,
 402                 V4L2_FIELD_NONE,
 403                 1,
 404                 0x20D,
 405                 0xffff,
 406                 0xffff
 407         },
 408         {
 409                 V4L2_DV_576P50,
 410                 tvp7002_parms_576P,
 411                 V4L2_COLORSPACE_SMPTE170M,
 412                 V4L2_FIELD_NONE,
 413                 1,
 414                 0x271,
 415                 0xffff,
 416                 0xffff
 417         }
 418 };
 419
 420 #define NUM_PRESETS     ARRAY_SIZE(tvp7002_presets)
 421
 422 /* Device definition */
 423 struct tvp7002 {
 424         struct v4l2_subdev sd;
 425         struct v4l2_ctrl_handler hdl;
 426         const struct tvp7002_config *pdata;
 427
 428         int ver;
 429         int streaming;
 430
 431         const struct tvp7002_preset_definition *current_preset;
 432 };
 433
 434 /*
 435  * to_tvp7002 - Obtain device handler TVP7002
 436  * @sd: ptr to v4l2_subdev struct
 437  *
 438  * Returns device handler tvp7002.
 439  */
 440 static inline struct tvp7002 *to_tvp7002(struct v4l2_subdev *sd)
 441 {
 442         return container_of(sd, struct tvp7002, sd);
 443 }
 444
 445 static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
 446 {
 447         return &container_of(ctrl->handler, struct tvp7002, hdl)->sd;
 448 }
 449
 450 /*
 451  * tvp7002_read - Read a value from a register in an TVP7002
 452  * @sd: ptr to v4l2_subdev struct
 453  * @addr: TVP7002 register address
 454  * @dst: pointer to 8-bit destination
 455  *
 456  * Returns value read if successful, or non-zero (-1) otherwise.
 457  */
 458 static int tvp7002_read(struct v4l2_subdev *sd, u8 addr, u8 *dst)
 459 {
 460         struct i2c_client *c = v4l2_get_subdevdata(sd);
 461         int retry;
 462         int error;
 463
 464         for (retry = 0; retry < I2C_RETRY_COUNT; retry++) {
 465                 error = i2c_smbus_read_byte_data(c, addr);
 466
 467                 if (error >= 0) {
 468                         *dst = (u8)error;
 469                         return 0;
 470                 }
 471
 472                 msleep_interruptible(10);
 473         }
 474         v4l2_err(sd, "TVP7002 read error %d\n", error);
 475         return error;
 476 }
 477
 478 /*
 479  * tvp7002_read_err() - Read a register value with error code
 480  * @sd: pointer to standard V4L2 sub-device structure
 481  * @reg: destination register
 482  * @val: value to be read
 483  * @err: pointer to error value
 484  *
 485  * Read a value in a register and save error value in pointer.
 486  * Also update the register table if successful
 487  */
 488 static inline void tvp7002_read_err(struct v4l2_subdev *sd, u8 reg,
 489                                                         u8 *dst, int *err)
 490 {
 491         if (!*err)
 492                 *err = tvp7002_read(sd, reg, dst);
 493 }
 494
 495 /*
 496  * tvp7002_write() - Write a value to a register in TVP7002
 497  * @sd: ptr to v4l2_subdev struct
 498  * @addr: TVP7002 register address
 499  * @value: value to be written to the register
 500  *
 501  * Write a value to a register in an TVP7002 decoder device.
 502  * Returns zero if successful, or non-zero otherwise.
 503  */
 504 static int tvp7002_write(struct v4l2_subdev *sd, u8 addr, u8 value)
 505 {
 506         struct i2c_client *c;
 507         int retry;
 508         int error;
 509
 510         c = v4l2_get_subdevdata(sd);
 511
 512         for (retry = 0; retry < I2C_RETRY_COUNT; retry++) {
 513                 error = i2c_smbus_write_byte_data(c, addr, value);
 514
 515                 if (error >= 0)
 516                         return 0;
 517
 518                 v4l2_warn(sd, "Write: retry ... %d\n", retry);
 519                 msleep_interruptible(10);
 520         }
 521         v4l2_err(sd, "TVP7002 write error %d\n", error);
 522         return error;
 523 }
 524
 525 /*
 526  * tvp7002_write_err() - Write a register value with error code
 527  * @sd: pointer to standard V4L2 sub-device structure
 528  * @reg: destination register
 529  * @val: value to be written
 530  * @err: pointer to error value
 531  *
 532  * Write a value in a register and save error value in pointer.
 533  * Also update the register table if successful
 534  */
 535 static inline void tvp7002_write_err(struct v4l2_subdev *sd, u8 reg,
 536                                                         u8 val, int *err)
 537 {
 538         if (!*err)
 539                 *err = tvp7002_write(sd, reg, val);
 540 }
 541
 542 /*
 543  * tvp7002_g_chip_ident() - Get chip identification number
 544  * @sd: ptr to v4l2_subdev struct
 545  * @chip: ptr to v4l2_dbg_chip_ident struct
 546  *
 547  * Obtains the chip's identification number.
 548  * Returns zero or -EINVAL if read operation fails.
 549  */
 550 static int tvp7002_g_chip_ident(struct v4l2_subdev *sd,
 551                                         struct v4l2_dbg_chip_ident *chip)
 552 {
 553         u8 rev;
 554         int error;
 555         struct i2c_client *client = v4l2_get_subdevdata(sd);
 556
 557         error = tvp7002_read(sd, TVP7002_CHIP_REV, &rev);
 558
 559         if (error < 0)
 560                 return error;
 561
 562         return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVP7002, rev);
 563 }
 564
 565 /*
 566  * tvp7002_write_inittab() - Write initialization values
 567  * @sd: ptr to v4l2_subdev struct
 568  * @regs: ptr to i2c_reg_value struct
 569  *
 570  * Write initialization values.
 571  * Returns zero or -EINVAL if read operation fails.
 572  */
 573 static int tvp7002_write_inittab(struct v4l2_subdev *sd,
 574                                         const struct i2c_reg_value *regs)
 575 {
 576         int error = 0;
 577
 578         /* Initialize the first (defined) registers */
 579         while (TVP7002_EOR != regs->reg) {
 580                 if (TVP7002_WRITE == regs->type)
 581                         tvp7002_write_err(sd, regs->reg, regs->value, &error);
 582                 regs++;
 583         }
 584
 585         return error;
 586 }
 587
 588 /*
 589  * tvp7002_s_dv_preset() - Set digital video preset
 590  * @sd: ptr to v4l2_subdev struct
 591  * @dv_preset: ptr to v4l2_dv_preset struct
 592  *
 593  * Set the digital video preset for a TVP7002 decoder device.
 594  * Returns zero when successful or -EINVAL if register access fails.
 595  */
 596 static int tvp7002_s_dv_preset(struct v4l2_subdev *sd,
 597                                         struct v4l2_dv_preset *dv_preset)
 598 {
 599         struct tvp7002 *device = to_tvp7002(sd);
 600         u32 preset;
 601         int i;
 602
 603         for (i = 0; i < NUM_PRESETS; i++) {
 604                 preset = tvp7002_presets[i].preset;
 605                 if (preset == dv_preset->preset) {
 606                         device->current_preset = &tvp7002_presets[i];
 607                         return tvp7002_write_inittab(sd, tvp7002_presets[i].p_settings);
 608                 }
 609         }
 610
 611         return -EINVAL;
 612 }
 613
 614 /*
 615  * tvp7002_s_ctrl() - Set a control
 616  * @ctrl: ptr to v4l2_ctrl struct
 617  *
 618  * Set a control in TVP7002 decoder device.
 619  * Returns zero when successful or -EINVAL if register access fails.
 620  */
 621 static int tvp7002_s_ctrl(struct v4l2_ctrl *ctrl)
 622 {
 623         struct v4l2_subdev *sd = to_sd(ctrl);
 624         int error = 0;
 625
 626         switch (ctrl->id) {
 627         case V4L2_CID_GAIN:
 628                 tvp7002_write_err(sd, TVP7002_R_FINE_GAIN, ctrl->val, &error);
 629                 tvp7002_write_err(sd, TVP7002_G_FINE_GAIN, ctrl->val, &error);
 630                 tvp7002_write_err(sd, TVP7002_B_FINE_GAIN, ctrl->val, &error);
 631                 return error;
 632         }
 633         return -EINVAL;
 634 }
 635
 636 /*
 637  * tvp7002_mbus_fmt() - V4L2 decoder interface handler for try/s/g_mbus_fmt
 638  * @sd: pointer to standard V4L2 sub-device structure
 639  * @f: pointer to mediabus format structure
 640  *
 641  * Negotiate the image capture size and mediabus format.
 642  * There is only one possible format, so this single function works for
 643  * get, set and try.
 644  */
 645 static int tvp7002_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *f)
 646 {
 647         struct tvp7002 *device = to_tvp7002(sd);
 648         struct v4l2_dv_enum_preset e_preset;
 649         int error;
 650
 651         /* Calculate height and width based on current standard */
 652         error = v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset);
 653         if (error)
 654                 return error;
 655
 656         f->width = e_preset.width;
 657         f->height = e_preset.height;
 658         f->code = V4L2_MBUS_FMT_YUYV10_1X20;
 659         f->field = device->current_preset->scanmode;
 660         f->colorspace = device->current_preset->color_space;
 661
 662         v4l2_dbg(1, debug, sd, "MBUS_FMT: Width - %d, Height - %d",
 663                         f->width, f->height);
 664         return 0;
 665 }
 666
 667 /*
 668  * tvp7002_query_dv_preset() - query DV preset
 669  * @sd: pointer to standard V4L2 sub-device structure
 670  * @qpreset: standard V4L2 v4l2_dv_preset structure
 671  *
 672  * Returns the current DV preset by TVP7002. If no active input is
 673  * detected, returns -EINVAL
 674  */
 675 static int tvp7002_query_dv_preset(struct v4l2_subdev *sd,
 676                                                 struct v4l2_dv_preset *qpreset)
 677 {
 678         const struct tvp7002_preset_definition *presets = tvp7002_presets;
 679         struct tvp7002 *device;
 680         u8 progressive;
 681         u32 lpfr;
 682         u32 cpln;
 683         int error = 0;
 684         u8 lpf_lsb;
 685         u8 lpf_msb;
 686         u8 cpl_lsb;
 687         u8 cpl_msb;
 688         int index;
 689
 690         device = to_tvp7002(sd);
 691
 692         /* Read standards from device registers */
 693         tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb, &error);
 694         tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_MSBS, &lpf_msb, &error);
 695
 696         if (error < 0)
 697                 return error;
 698
 699         tvp7002_read_err(sd, TVP7002_CLK_L_STAT_LSBS, &cpl_lsb, &error);
 700         tvp7002_read_err(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb, &error);
 701
 702         if (error < 0)
 703                 return error;
 704
 705         /* Get lines per frame, clocks per line and interlaced/progresive */
 706         lpfr = lpf_lsb | ((TVP7002_CL_MASK & lpf_msb) << TVP7002_CL_SHIFT);
 707         cpln = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) << TVP7002_CL_SHIFT);
 708         progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT;
 709
 710         /* Do checking of video modes */
 711         for (index = 0; index < NUM_PRESETS; index++, presets++)
 712                 if (lpfr  == presets->lines_per_frame &&
 713                         progressive == presets->progressive) {
 714                         if (presets->cpl_min == 0xffff)
 715                                 break;
 716                         if (cpln >= presets->cpl_min && cpln <= presets->cpl_max)
 717                                 break;
 718                 }
 719
 720         if (index == NUM_PRESETS) {
 721                 v4l2_dbg(1, debug, sd, "detection failed: lpf = %x, cpl = %x\n",
 722                                                                 lpfr, cpln);
 723                 /* Could not detect a signal, so return the 'invalid' preset */
 724                 qpreset->preset = V4L2_DV_INVALID;
 725                 return 0;
 726         }
 727
 728         /* Set values in found preset */
 729         qpreset->preset = presets->preset;
 730
 731         /* Update lines per frame and clocks per line info */
 732         v4l2_dbg(1, debug, sd, "detected preset: %d\n", presets->preset);
 733         return 0;
 734 }
 735
 736 #ifdef CONFIG_VIDEO_ADV_DEBUG
 737 /*
 738  * tvp7002_g_register() - Get the value of a register
 739  * @sd: ptr to v4l2_subdev struct
 740  * @reg: ptr to v4l2_dbg_register struct
 741  *
 742  * Get the value of a TVP7002 decoder device register.
 743  * Returns zero when successful, -EINVAL if register read fails or
 744  * access to I2C client fails, -EPERM if the call is not allowed
 745  * by disabled CAP_SYS_ADMIN.
 746  */
 747 static int tvp7002_g_register(struct v4l2_subdev *sd,
 748                                                 struct v4l2_dbg_register *reg)
 749 {
 750         struct i2c_client *client = v4l2_get_subdevdata(sd);
 751         u8 val;
 752         int ret;
 753
 754         if (!v4l2_chip_match_i2c_client(client, &reg->match))
 755                 return -EINVAL;
 756         if (!capable(CAP_SYS_ADMIN))
 757                 return -EPERM;
 758
 759         ret = tvp7002_read(sd, reg->reg & 0xff, &val);
 760         reg->val = val;
 761         return ret;
 762 }
 763
 764 /*
 765  * tvp7002_s_register() - set a control
 766  * @sd: ptr to v4l2_subdev struct
 767  * @reg: ptr to v4l2_dbg_register struct
 768  *
 769  * Get the value of a TVP7002 decoder device register.
 770  * Returns zero when successful, -EINVAL if register read fails or
 771  * -EPERM if call not allowed.
 772  */
 773 static int tvp7002_s_register(struct v4l2_subdev *sd,
 774                                                 struct v4l2_dbg_register *reg)
 775 {
 776         struct i2c_client *client = v4l2_get_subdevdata(sd);
 777
 778         if (!v4l2_chip_match_i2c_client(client, &reg->match))
 779                 return -EINVAL;
 780         if (!capable(CAP_SYS_ADMIN))
 781                 return -EPERM;
 782
 783         return tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff);
 784 }
 785 #endif
 786
 787 /*
 788  * tvp7002_enum_mbus_fmt() - Enum supported mediabus formats
 789  * @sd: pointer to standard V4L2 sub-device structure
 790  * @index: format index
 791  * @code: pointer to mediabus format
 792  *
 793  * Enumerate supported mediabus formats.
 794  */
 795
 796 static int tvp7002_enum_mbus_fmt(struct v4l2_subdev *sd, unsigned index,
 797                                         enum v4l2_mbus_pixelcode *code)
 798 {
 799         /* Check requested format index is within range */
 800         if (index)
 801                 return -EINVAL;
 802         *code = V4L2_MBUS_FMT_YUYV10_1X20;
 803         return 0;
 804 }
 805
 806 /*
 807  * tvp7002_s_stream() - V4L2 decoder i/f handler for s_stream
 808  * @sd: pointer to standard V4L2 sub-device structure
 809  * @enable: streaming enable or disable
 810  *
 811  * Sets streaming to enable or disable, if possible.
 812  */
 813 static int tvp7002_s_stream(struct v4l2_subdev *sd, int enable)
 814 {
 815         struct tvp7002 *device = to_tvp7002(sd);
 816         int error = 0;
 817
 818         if (device->streaming == enable)
 819                 return 0;
 820
 821         if (enable) {
 822                 /* Set output state on (low impedance means stream on) */
 823                 error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x00);
 824                 device->streaming = enable;
 825         } else {
 826                 /* Set output state off (high impedance means stream off) */
 827                 error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x03);
 828                 if (error)
 829                         v4l2_dbg(1, debug, sd, "Unable to stop streaming\n");
 830
 831                 device->streaming = enable;
 832         }
 833
 834         return error;
 835 }
 836
 837 /*
 838  * tvp7002_log_status() - Print information about register settings
 839  * @sd: ptr to v4l2_subdev struct
 840  *
 841  * Log register values of a TVP7002 decoder device.
 842  * Returns zero or -EINVAL if read operation fails.
 843  */
 844 static int tvp7002_log_status(struct v4l2_subdev *sd)
 845 {
 846         const struct tvp7002_preset_definition *presets = tvp7002_presets;
 847         struct tvp7002 *device = to_tvp7002(sd);
 848         struct v4l2_dv_enum_preset e_preset;
 849         struct v4l2_dv_preset detected;
 850         int i;
 851
 852         detected.preset = V4L2_DV_INVALID;
 853         /* Find my current standard*/
 854         tvp7002_query_dv_preset(sd, &detected);
 855
 856         /* Print standard related code values */
 857         for (i = 0; i < NUM_PRESETS; i++, presets++)
 858                 if (presets->preset == detected.preset)
 859                         break;
 860
 861         if (v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset))
 862                 return -EINVAL;
 863
 864         v4l2_info(sd, "Selected DV Preset: %s\n", e_preset.name);
 865         v4l2_info(sd, "   Pixels per line: %u\n", e_preset.width);
 866         v4l2_info(sd, "   Lines per frame: %u\n\n", e_preset.height);
 867         if (i == NUM_PRESETS) {
 868                 v4l2_info(sd, "Detected DV Preset: None\n");
 869         } else {
 870                 if (v4l_fill_dv_preset_info(presets->preset, &e_preset))
 871                         return -EINVAL;
 872                 v4l2_info(sd, "Detected DV Preset: %s\n", e_preset.name);
 873                 v4l2_info(sd, "  Pixels per line: %u\n", e_preset.width);
 874                 v4l2_info(sd, "  Lines per frame: %u\n\n", e_preset.height);
 875         }
 876         v4l2_info(sd, "Streaming enabled: %s\n",
 877                                         device->streaming ? "yes" : "no");
 878
 879         /* Print the current value of the gain control */
 880         v4l2_ctrl_handler_log_status(&device->hdl, sd->name);
 881
 882         return 0;
 883 }
 884
 885 /*
 886  * tvp7002_enum_dv_presets() - Enum supported digital video formats
 887  * @sd: pointer to standard V4L2 sub-device structure
 888  * @preset: pointer to format struct
 889  *
 890  * Enumerate supported digital video formats.
 891  */
 892 static int tvp7002_enum_dv_presets(struct v4l2_subdev *sd,
 893                 struct v4l2_dv_enum_preset *preset)
 894 {
 895         /* Check requested format index is within range */
 896         if (preset->index >= NUM_PRESETS)
 897                 return -EINVAL;
 898
 899         return v4l_fill_dv_preset_info(tvp7002_presets[preset->index].preset, preset);
 900 }
 901
 902 static const struct v4l2_ctrl_ops tvp7002_ctrl_ops = {
 903         .s_ctrl = tvp7002_s_ctrl,
 904 };
 905
 906 /* V4L2 core operation handlers */
 907 static const struct v4l2_subdev_core_ops tvp7002_core_ops = {
 908         .g_chip_ident = tvp7002_g_chip_ident,
 909         .log_status = tvp7002_log_status,
 910         .g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
 911         .try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
 912         .s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
 913         .g_ctrl = v4l2_subdev_g_ctrl,
 914         .s_ctrl = v4l2_subdev_s_ctrl,
 915         .queryctrl = v4l2_subdev_queryctrl,
 916         .querymenu = v4l2_subdev_querymenu,
 917 #ifdef CONFIG_VIDEO_ADV_DEBUG
 918         .g_register = tvp7002_g_register,
 919         .s_register = tvp7002_s_register,
 920 #endif
 921 };
 922
 923 /* Specific video subsystem operation handlers */
 924 static const struct v4l2_subdev_video_ops tvp7002_video_ops = {
 925         .enum_dv_presets = tvp7002_enum_dv_presets,
 926         .s_dv_preset = tvp7002_s_dv_preset,
 927         .query_dv_preset = tvp7002_query_dv_preset,
 928         .s_stream = tvp7002_s_stream,
 929         .g_mbus_fmt = tvp7002_mbus_fmt,
 930         .try_mbus_fmt = tvp7002_mbus_fmt,
 931         .s_mbus_fmt = tvp7002_mbus_fmt,
 932         .enum_mbus_fmt = tvp7002_enum_mbus_fmt,
 933 };
 934
 935 /* V4L2 top level operation handlers */
 936 static const struct v4l2_subdev_ops tvp7002_ops = {
 937         .core = &tvp7002_core_ops,
 938         .video = &tvp7002_video_ops,
 939 };
 940
 941 /*
 942  * tvp7002_probe - Probe a TVP7002 device
 943  * @c: ptr to i2c_client struct
 944  * @id: ptr to i2c_device_id struct
 945  *
 946  * Initialize the TVP7002 device
 947  * Returns zero when successful, -EINVAL if register read fails or
 948  * -EIO if i2c access is not available.
 949  */
 950 static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id)
 951 {
 952         struct v4l2_subdev *sd;
 953         struct tvp7002 *device;
 954         struct v4l2_dv_preset preset;
 955         int polarity_a;
 956         int polarity_b;
 957         u8 revision;
 958
 959         int error;
 960
 961         /* Check if the adapter supports the needed features */
 962         if (!i2c_check_functionality(c->adapter,
 963                 I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
 964                 return -EIO;
 965
 966         if (!c->dev.platform_data) {
 967                 v4l_err(c, "No platform data!!\n");
 968                 return -ENODEV;
 969         }
 970
 971         device = kzalloc(sizeof(struct tvp7002), GFP_KERNEL);
 972
 973         if (!device)
 974                 return -ENOMEM;
 975
 976         sd = &device->sd;
 977         device->pdata = c->dev.platform_data;
 978         device->current_preset = tvp7002_presets;
 979
 980         /* Tell v4l2 the device is ready */
 981         v4l2_i2c_subdev_init(sd, c, &tvp7002_ops);
 982         v4l_info(c, "tvp7002 found @ 0x%02x (%s)\n",
 983                                         c->addr, c->adapter->name);
 984
 985         error = tvp7002_read(sd, TVP7002_CHIP_REV, &revision);
 986         if (error < 0)
 987                 goto found_error;
 988
 989         /* Get revision number */
 990         v4l2_info(sd, "Rev. %02x detected.\n", revision);
 991         if (revision != 0x02)
 992                 v4l2_info(sd, "Unknown revision detected.\n");
 993
 994         /* Initializes TVP7002 to its default values */
 995         error = tvp7002_write_inittab(sd, tvp7002_init_default);
 996
 997         if (error < 0)
 998                 goto found_error;
 999
1000         /* Set polarity information after registers have been set */
1001         polarity_a = 0x20 | device->pdata->hs_polarity << 5
1002                         | device->pdata->vs_polarity << 2;
1003         error = tvp7002_write(sd, TVP7002_SYNC_CTL_1, polarity_a);
1004         if (error < 0)
1005                 goto found_error;
1006
1007         polarity_b = 0x01  | device->pdata->fid_polarity << 2
1008                         | device->pdata->sog_polarity << 1
1009                         | device->pdata->clk_polarity;
1010         error = tvp7002_write(sd, TVP7002_MISC_CTL_3, polarity_b);
1011         if (error < 0)
1012                 goto found_error;
1013
1014         /* Set registers according to default video mode */
1015         preset.preset = device->current_preset->preset;
1016         error = tvp7002_s_dv_preset(sd, &preset);
1017
1018         v4l2_ctrl_handler_init(&device->hdl, 1);
1019         v4l2_ctrl_new_std(&device->hdl, &tvp7002_ctrl_ops,
1020                         V4L2_CID_GAIN, 0, 255, 1, 0);
1021         sd->ctrl_handler = &device->hdl;
1022         if (device->hdl.error) {
1023                 int err = device->hdl.error;
1024
1025                 v4l2_ctrl_handler_free(&device->hdl);
1026                 kfree(device);
1027                 return err;
1028         }
1029         v4l2_ctrl_handler_setup(&device->hdl);
1030
1031 found_error:
1032         if (error < 0)
1033                 kfree(device);
1034
1035         return error;
1036 }
1037
1038 /*
1039  * tvp7002_remove - Remove TVP7002 device support
1040  * @c: ptr to i2c_client struct
1041  *
1042  * Reset the TVP7002 device
1043  * Returns zero.
1044  */
1045 static int tvp7002_remove(struct i2c_client *c)
1046 {
1047         struct v4l2_subdev *sd = i2c_get_clientdata(c);
1048         struct tvp7002 *device = to_tvp7002(sd);
1049
1050         v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter"
1051                                 "on address 0x%x\n", c->addr);
1052
1053         v4l2_device_unregister_subdev(sd);
1054         v4l2_ctrl_handler_free(&device->hdl);
1055         kfree(device);
1056         return 0;
1057 }
1058
1059 /* I2C Device ID table */
1060 static const struct i2c_device_id tvp7002_id[] = {
1061         { "tvp7002", 0 },
1062         { }
1063 };
1064 MODULE_DEVICE_TABLE(i2c, tvp7002_id);
1065
1066 /* I2C driver data */
1067 static struct i2c_driver tvp7002_driver = {
1068         .driver = {
1069                 .owner = THIS_MODULE,
1070                 .name = TVP7002_MODULE_NAME,
1071         },
1072         .probe = tvp7002_probe,
1073         .remove = tvp7002_remove,
1074         .id_table = tvp7002_id,
1075 };
1076
1077 /*
1078  * tvp7002_init - Initialize driver via I2C interface
1079  *
1080  * Register the TVP7002 driver.
1081  * Return 0 on success or error code on failure.
1082  */
1083 static int __init tvp7002_init(void)
1084 {
1085         return i2c_add_driver(&tvp7002_driver);
1086 }
1087
1088 /*
1089  * tvp7002_exit - Remove driver via I2C interface
1090  *
1091  * Unregister the TVP7002 driver.
1092  * Returns nothing.
1093  */
1094 static void __exit tvp7002_exit(void)
1095 {
1096         i2c_del_driver(&tvp7002_driver);
1097 }
1098
1099 module_init(tvp7002_init);
1100 module_exit(tvp7002_exit);