Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 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> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame^] | 29 | #include <linux/slab.h> |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 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 "tvp7002_reg.h" |
| 36 | |
| 37 | MODULE_DESCRIPTION("TI TVP7002 Video and Graphics Digitizer driver"); |
| 38 | MODULE_AUTHOR("Santiago Nunez-Corrales <santiago.nunez@ridgerun.com>"); |
| 39 | MODULE_LICENSE("GPL"); |
| 40 | |
| 41 | /* Module Name */ |
| 42 | #define TVP7002_MODULE_NAME "tvp7002" |
| 43 | |
| 44 | /* I2C retry attempts */ |
| 45 | #define I2C_RETRY_COUNT (5) |
| 46 | |
| 47 | /* End of registers */ |
| 48 | #define TVP7002_EOR 0x5c |
| 49 | |
| 50 | /* Read write definition for registers */ |
| 51 | #define TVP7002_READ 0 |
| 52 | #define TVP7002_WRITE 1 |
| 53 | #define TVP7002_RESERVED 2 |
| 54 | |
| 55 | /* Interlaced vs progressive mask and shift */ |
| 56 | #define TVP7002_IP_SHIFT 5 |
| 57 | #define TVP7002_INPR_MASK (0x01 << TVP7002_IP_SHIFT) |
| 58 | |
| 59 | /* Shift for CPL and LPF registers */ |
| 60 | #define TVP7002_CL_SHIFT 8 |
| 61 | #define TVP7002_CL_MASK 0x0f |
| 62 | |
| 63 | /* Debug functions */ |
| 64 | static int debug; |
| 65 | module_param(debug, bool, 0644); |
| 66 | MODULE_PARM_DESC(debug, "Debug level (0-2)"); |
| 67 | |
| 68 | /* Structure for register values */ |
| 69 | struct i2c_reg_value { |
| 70 | u8 reg; |
| 71 | u8 value; |
| 72 | u8 type; |
| 73 | }; |
| 74 | |
| 75 | /* |
| 76 | * Register default values (according to tvp7002 datasheet) |
| 77 | * In the case of read-only registers, the value (0xff) is |
| 78 | * never written. R/W functionality is controlled by the |
| 79 | * writable bit in the register struct definition. |
| 80 | */ |
| 81 | static const struct i2c_reg_value tvp7002_init_default[] = { |
| 82 | { TVP7002_CHIP_REV, 0xff, TVP7002_READ }, |
| 83 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE }, |
| 84 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x20, TVP7002_WRITE }, |
| 85 | { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE }, |
| 86 | { TVP7002_HPLL_PHASE_SEL, 0x80, TVP7002_WRITE }, |
| 87 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, |
| 88 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, |
| 89 | { TVP7002_HSYNC_OUT_W, 0x60, TVP7002_WRITE }, |
| 90 | { TVP7002_B_FINE_GAIN, 0x00, TVP7002_WRITE }, |
| 91 | { TVP7002_G_FINE_GAIN, 0x00, TVP7002_WRITE }, |
| 92 | { TVP7002_R_FINE_GAIN, 0x00, TVP7002_WRITE }, |
| 93 | { TVP7002_B_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, |
| 94 | { TVP7002_G_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, |
| 95 | { TVP7002_R_FINE_OFF_MSBS, 0x80, TVP7002_WRITE }, |
| 96 | { TVP7002_SYNC_CTL_1, 0x20, TVP7002_WRITE }, |
| 97 | { TVP7002_HPLL_AND_CLAMP_CTL, 0x2e, TVP7002_WRITE }, |
| 98 | { TVP7002_SYNC_ON_G_THRS, 0x5d, TVP7002_WRITE }, |
| 99 | { TVP7002_SYNC_SEPARATOR_THRS, 0x47, TVP7002_WRITE }, |
| 100 | { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE }, |
| 101 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, |
| 102 | { TVP7002_SYNC_DETECT_STAT, 0xff, TVP7002_READ }, |
| 103 | { TVP7002_OUT_FORMATTER, 0x47, TVP7002_WRITE }, |
| 104 | { TVP7002_MISC_CTL_1, 0x01, TVP7002_WRITE }, |
| 105 | { TVP7002_MISC_CTL_2, 0x00, TVP7002_WRITE }, |
| 106 | { TVP7002_MISC_CTL_3, 0x01, TVP7002_WRITE }, |
| 107 | { TVP7002_IN_MUX_SEL_1, 0x00, TVP7002_WRITE }, |
| 108 | { TVP7002_IN_MUX_SEL_2, 0x67, TVP7002_WRITE }, |
| 109 | { TVP7002_B_AND_G_COARSE_GAIN, 0x77, TVP7002_WRITE }, |
| 110 | { TVP7002_R_COARSE_GAIN, 0x07, TVP7002_WRITE }, |
| 111 | { TVP7002_FINE_OFF_LSBS, 0x00, TVP7002_WRITE }, |
| 112 | { TVP7002_B_COARSE_OFF, 0x10, TVP7002_WRITE }, |
| 113 | { TVP7002_G_COARSE_OFF, 0x10, TVP7002_WRITE }, |
| 114 | { TVP7002_R_COARSE_OFF, 0x10, TVP7002_WRITE }, |
| 115 | { TVP7002_HSOUT_OUT_START, 0x08, TVP7002_WRITE }, |
| 116 | { TVP7002_MISC_CTL_4, 0x00, TVP7002_WRITE }, |
| 117 | { TVP7002_B_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, |
| 118 | { TVP7002_G_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, |
| 119 | { TVP7002_R_DGTL_ALC_OUT_LSBS, 0xff, TVP7002_READ }, |
| 120 | { TVP7002_AUTO_LVL_CTL_ENABLE, 0x80, TVP7002_WRITE }, |
| 121 | { TVP7002_DGTL_ALC_OUT_MSBS, 0xff, TVP7002_READ }, |
| 122 | { TVP7002_AUTO_LVL_CTL_FILTER, 0x53, TVP7002_WRITE }, |
| 123 | { 0x29, 0x08, TVP7002_RESERVED }, |
| 124 | { TVP7002_FINE_CLAMP_CTL, 0x07, TVP7002_WRITE }, |
| 125 | /* PWR_CTL is controlled only by the probe and reset functions */ |
| 126 | { TVP7002_PWR_CTL, 0x00, TVP7002_RESERVED }, |
| 127 | { TVP7002_ADC_SETUP, 0x50, TVP7002_WRITE }, |
| 128 | { TVP7002_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE }, |
| 129 | { TVP7002_SOG_CLAMP, 0x80, TVP7002_WRITE }, |
| 130 | { TVP7002_RGB_COARSE_CLAMP_CTL, 0x00, TVP7002_WRITE }, |
| 131 | { TVP7002_SOG_COARSE_CLAMP_CTL, 0x04, TVP7002_WRITE }, |
| 132 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, |
| 133 | { 0x32, 0x18, TVP7002_RESERVED }, |
| 134 | { 0x33, 0x60, TVP7002_RESERVED }, |
| 135 | { TVP7002_MVIS_STRIPPER_W, 0xff, TVP7002_RESERVED }, |
| 136 | { TVP7002_VSYNC_ALGN, 0x10, TVP7002_WRITE }, |
| 137 | { TVP7002_SYNC_BYPASS, 0x00, TVP7002_WRITE }, |
| 138 | { TVP7002_L_FRAME_STAT_LSBS, 0xff, TVP7002_READ }, |
| 139 | { TVP7002_L_FRAME_STAT_MSBS, 0xff, TVP7002_READ }, |
| 140 | { TVP7002_CLK_L_STAT_LSBS, 0xff, TVP7002_READ }, |
| 141 | { TVP7002_CLK_L_STAT_MSBS, 0xff, TVP7002_READ }, |
| 142 | { TVP7002_HSYNC_W, 0xff, TVP7002_READ }, |
| 143 | { TVP7002_VSYNC_W, 0xff, TVP7002_READ }, |
| 144 | { TVP7002_L_LENGTH_TOL, 0x03, TVP7002_WRITE }, |
| 145 | { 0x3e, 0x60, TVP7002_RESERVED }, |
| 146 | { TVP7002_VIDEO_BWTH_CTL, 0x01, TVP7002_WRITE }, |
| 147 | { TVP7002_AVID_START_PIXEL_LSBS, 0x01, TVP7002_WRITE }, |
| 148 | { TVP7002_AVID_START_PIXEL_MSBS, 0x2c, TVP7002_WRITE }, |
| 149 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x06, TVP7002_WRITE }, |
| 150 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x2c, TVP7002_WRITE }, |
| 151 | { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, |
| 152 | { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 153 | { TVP7002_VBLK_F_0_DURATION, 0x1e, TVP7002_WRITE }, |
| 154 | { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, |
| 155 | { TVP7002_FBIT_F_0_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 156 | { TVP7002_FBIT_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 157 | { TVP7002_YUV_Y_G_COEF_LSBS, 0xe3, TVP7002_WRITE }, |
| 158 | { TVP7002_YUV_Y_G_COEF_MSBS, 0x16, TVP7002_WRITE }, |
| 159 | { TVP7002_YUV_Y_B_COEF_LSBS, 0x4f, TVP7002_WRITE }, |
| 160 | { TVP7002_YUV_Y_B_COEF_MSBS, 0x02, TVP7002_WRITE }, |
| 161 | { TVP7002_YUV_Y_R_COEF_LSBS, 0xce, TVP7002_WRITE }, |
| 162 | { TVP7002_YUV_Y_R_COEF_MSBS, 0x06, TVP7002_WRITE }, |
| 163 | { TVP7002_YUV_U_G_COEF_LSBS, 0xab, TVP7002_WRITE }, |
| 164 | { TVP7002_YUV_U_G_COEF_MSBS, 0xf3, TVP7002_WRITE }, |
| 165 | { TVP7002_YUV_U_B_COEF_LSBS, 0x00, TVP7002_WRITE }, |
| 166 | { TVP7002_YUV_U_B_COEF_MSBS, 0x10, TVP7002_WRITE }, |
| 167 | { TVP7002_YUV_U_R_COEF_LSBS, 0x55, TVP7002_WRITE }, |
| 168 | { TVP7002_YUV_U_R_COEF_MSBS, 0xfc, TVP7002_WRITE }, |
| 169 | { TVP7002_YUV_V_G_COEF_LSBS, 0x78, TVP7002_WRITE }, |
| 170 | { TVP7002_YUV_V_G_COEF_MSBS, 0xf1, TVP7002_WRITE }, |
| 171 | { TVP7002_YUV_V_B_COEF_LSBS, 0x88, TVP7002_WRITE }, |
| 172 | { TVP7002_YUV_V_B_COEF_MSBS, 0xfe, TVP7002_WRITE }, |
| 173 | { TVP7002_YUV_V_R_COEF_LSBS, 0x00, TVP7002_WRITE }, |
| 174 | { TVP7002_YUV_V_R_COEF_MSBS, 0x10, TVP7002_WRITE }, |
| 175 | /* This signals end of register values */ |
| 176 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 177 | }; |
| 178 | |
| 179 | /* Register parameters for 480P */ |
| 180 | static const struct i2c_reg_value tvp7002_parms_480P[] = { |
| 181 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x35, TVP7002_WRITE }, |
| 182 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x0a, TVP7002_WRITE }, |
| 183 | { TVP7002_HPLL_CRTL, 0x02, TVP7002_WRITE }, |
| 184 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, |
| 185 | { TVP7002_AVID_START_PIXEL_LSBS, 0x91, TVP7002_WRITE }, |
| 186 | { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE }, |
| 187 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0B, TVP7002_WRITE }, |
| 188 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE }, |
| 189 | { TVP7002_VBLK_F_0_START_L_OFF, 0x03, TVP7002_WRITE }, |
| 190 | { TVP7002_VBLK_F_1_START_L_OFF, 0x01, TVP7002_WRITE }, |
| 191 | { TVP7002_VBLK_F_0_DURATION, 0x13, TVP7002_WRITE }, |
| 192 | { TVP7002_VBLK_F_1_DURATION, 0x13, TVP7002_WRITE }, |
| 193 | { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE }, |
| 194 | { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE }, |
| 195 | { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE }, |
| 196 | { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE }, |
| 197 | { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE }, |
| 198 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 199 | }; |
| 200 | |
| 201 | /* Register parameters for 576P */ |
| 202 | static const struct i2c_reg_value tvp7002_parms_576P[] = { |
| 203 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x36, TVP7002_WRITE }, |
| 204 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE }, |
| 205 | { TVP7002_HPLL_CRTL, 0x18, TVP7002_WRITE }, |
| 206 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, |
| 207 | { TVP7002_AVID_START_PIXEL_LSBS, 0x9B, TVP7002_WRITE }, |
| 208 | { TVP7002_AVID_START_PIXEL_MSBS, 0x00, TVP7002_WRITE }, |
| 209 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x0F, TVP7002_WRITE }, |
| 210 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x00, TVP7002_WRITE }, |
| 211 | { TVP7002_VBLK_F_0_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 212 | { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 213 | { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, |
| 214 | { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, |
| 215 | { TVP7002_ALC_PLACEMENT, 0x18, TVP7002_WRITE }, |
| 216 | { TVP7002_CLAMP_START, 0x06, TVP7002_WRITE }, |
| 217 | { TVP7002_CLAMP_W, 0x10, TVP7002_WRITE }, |
| 218 | { TVP7002_HPLL_PRE_COAST, 0x03, TVP7002_WRITE }, |
| 219 | { TVP7002_HPLL_POST_COAST, 0x03, TVP7002_WRITE }, |
| 220 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 221 | }; |
| 222 | |
| 223 | /* Register parameters for 1080I60 */ |
| 224 | static const struct i2c_reg_value tvp7002_parms_1080I60[] = { |
| 225 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE }, |
| 226 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x08, TVP7002_WRITE }, |
| 227 | { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, |
| 228 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, |
| 229 | { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, |
| 230 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, |
| 231 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, |
| 232 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, |
| 233 | { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, |
| 234 | { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, |
| 235 | { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, |
| 236 | { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, |
| 237 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, |
| 238 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, |
| 239 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, |
| 240 | { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, |
| 241 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, |
| 242 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 243 | }; |
| 244 | |
| 245 | /* Register parameters for 1080P60 */ |
| 246 | static const struct i2c_reg_value tvp7002_parms_1080P60[] = { |
| 247 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x89, TVP7002_WRITE }, |
| 248 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x08, TVP7002_WRITE }, |
| 249 | { TVP7002_HPLL_CRTL, 0xE0, TVP7002_WRITE }, |
| 250 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, |
| 251 | { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, |
| 252 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, |
| 253 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, |
| 254 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, |
| 255 | { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, |
| 256 | { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, |
| 257 | { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, |
| 258 | { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, |
| 259 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, |
| 260 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, |
| 261 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, |
| 262 | { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, |
| 263 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, |
| 264 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 265 | }; |
| 266 | |
| 267 | /* Register parameters for 1080I50 */ |
| 268 | static const struct i2c_reg_value tvp7002_parms_1080I50[] = { |
| 269 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0xa5, TVP7002_WRITE }, |
| 270 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x00, TVP7002_WRITE }, |
| 271 | { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, |
| 272 | { TVP7002_HPLL_PHASE_SEL, 0x14, TVP7002_WRITE }, |
| 273 | { TVP7002_AVID_START_PIXEL_LSBS, 0x06, TVP7002_WRITE }, |
| 274 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, |
| 275 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x8a, TVP7002_WRITE }, |
| 276 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x08, TVP7002_WRITE }, |
| 277 | { TVP7002_VBLK_F_0_START_L_OFF, 0x02, TVP7002_WRITE }, |
| 278 | { TVP7002_VBLK_F_1_START_L_OFF, 0x02, TVP7002_WRITE }, |
| 279 | { TVP7002_VBLK_F_0_DURATION, 0x16, TVP7002_WRITE }, |
| 280 | { TVP7002_VBLK_F_1_DURATION, 0x17, TVP7002_WRITE }, |
| 281 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, |
| 282 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, |
| 283 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, |
| 284 | { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, |
| 285 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, |
| 286 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 287 | }; |
| 288 | |
| 289 | /* Register parameters for 720P60 */ |
| 290 | static const struct i2c_reg_value tvp7002_parms_720P60[] = { |
| 291 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x67, TVP7002_WRITE }, |
| 292 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x02, TVP7002_WRITE }, |
| 293 | { TVP7002_HPLL_CRTL, 0xa0, TVP7002_WRITE }, |
| 294 | { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE }, |
| 295 | { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE }, |
| 296 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, |
| 297 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE }, |
| 298 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE }, |
| 299 | { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, |
| 300 | { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 301 | { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, |
| 302 | { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, |
| 303 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, |
| 304 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, |
| 305 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, |
| 306 | { TVP7002_HPLL_PRE_COAST, 0x00, TVP7002_WRITE }, |
| 307 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, |
| 308 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 309 | }; |
| 310 | |
| 311 | /* Register parameters for 720P50 */ |
| 312 | static const struct i2c_reg_value tvp7002_parms_720P50[] = { |
| 313 | { TVP7002_HPLL_FDBK_DIV_MSBS, 0x7b, TVP7002_WRITE }, |
| 314 | { TVP7002_HPLL_FDBK_DIV_LSBS, 0x0c, TVP7002_WRITE }, |
| 315 | { TVP7002_HPLL_CRTL, 0x98, TVP7002_WRITE }, |
| 316 | { TVP7002_HPLL_PHASE_SEL, 0x16, TVP7002_WRITE }, |
| 317 | { TVP7002_AVID_START_PIXEL_LSBS, 0x47, TVP7002_WRITE }, |
| 318 | { TVP7002_AVID_START_PIXEL_MSBS, 0x01, TVP7002_WRITE }, |
| 319 | { TVP7002_AVID_STOP_PIXEL_LSBS, 0x4B, TVP7002_WRITE }, |
| 320 | { TVP7002_AVID_STOP_PIXEL_MSBS, 0x06, TVP7002_WRITE }, |
| 321 | { TVP7002_VBLK_F_0_START_L_OFF, 0x05, TVP7002_WRITE }, |
| 322 | { TVP7002_VBLK_F_1_START_L_OFF, 0x00, TVP7002_WRITE }, |
| 323 | { TVP7002_VBLK_F_0_DURATION, 0x2D, TVP7002_WRITE }, |
| 324 | { TVP7002_VBLK_F_1_DURATION, 0x00, TVP7002_WRITE }, |
| 325 | { TVP7002_ALC_PLACEMENT, 0x5a, TVP7002_WRITE }, |
| 326 | { TVP7002_CLAMP_START, 0x32, TVP7002_WRITE }, |
| 327 | { TVP7002_CLAMP_W, 0x20, TVP7002_WRITE }, |
| 328 | { TVP7002_HPLL_PRE_COAST, 0x01, TVP7002_WRITE }, |
| 329 | { TVP7002_HPLL_POST_COAST, 0x00, TVP7002_WRITE }, |
| 330 | { TVP7002_EOR, 0xff, TVP7002_RESERVED } |
| 331 | }; |
| 332 | |
| 333 | /* Struct list for available formats */ |
| 334 | static const struct v4l2_fmtdesc tvp7002_fmt_list[] = { |
| 335 | { |
| 336 | .index = 0, |
| 337 | .type = V4L2_BUF_TYPE_VIDEO_CAPTURE, |
| 338 | .flags = 0, |
| 339 | .description = "8-bit UYVY 4:2:2 Format", |
| 340 | .pixelformat = V4L2_PIX_FMT_UYVY, |
| 341 | }, |
| 342 | }; |
| 343 | |
| 344 | #define NUM_FORMATS ARRAY_SIZE(tvp7002_fmt_list) |
| 345 | |
| 346 | /* Preset definition for handling device operation */ |
| 347 | struct tvp7002_preset_definition { |
| 348 | u32 preset; |
| 349 | const struct i2c_reg_value *p_settings; |
| 350 | enum v4l2_colorspace color_space; |
| 351 | enum v4l2_field scanmode; |
| 352 | u16 progressive; |
| 353 | u16 lines_per_frame; |
| 354 | u16 cpl_min; |
| 355 | u16 cpl_max; |
| 356 | }; |
| 357 | |
| 358 | /* Struct list for digital video presets */ |
| 359 | static const struct tvp7002_preset_definition tvp7002_presets[] = { |
| 360 | { |
| 361 | V4L2_DV_720P60, |
| 362 | tvp7002_parms_720P60, |
| 363 | V4L2_COLORSPACE_REC709, |
| 364 | V4L2_FIELD_NONE, |
| 365 | 1, |
| 366 | 0x2EE, |
| 367 | 135, |
| 368 | 153 |
| 369 | }, |
| 370 | { |
| 371 | V4L2_DV_1080I60, |
| 372 | tvp7002_parms_1080I60, |
| 373 | V4L2_COLORSPACE_REC709, |
| 374 | V4L2_FIELD_INTERLACED, |
| 375 | 0, |
| 376 | 0x465, |
| 377 | 181, |
| 378 | 205 |
| 379 | }, |
| 380 | { |
| 381 | V4L2_DV_1080I50, |
| 382 | tvp7002_parms_1080I50, |
| 383 | V4L2_COLORSPACE_REC709, |
| 384 | V4L2_FIELD_INTERLACED, |
| 385 | 0, |
| 386 | 0x465, |
| 387 | 217, |
| 388 | 245 |
| 389 | }, |
| 390 | { |
| 391 | V4L2_DV_720P50, |
| 392 | tvp7002_parms_720P50, |
| 393 | V4L2_COLORSPACE_REC709, |
| 394 | V4L2_FIELD_NONE, |
| 395 | 1, |
| 396 | 0x2EE, |
| 397 | 163, |
| 398 | 183 |
| 399 | }, |
| 400 | { |
| 401 | V4L2_DV_1080P60, |
| 402 | tvp7002_parms_1080P60, |
| 403 | V4L2_COLORSPACE_REC709, |
| 404 | V4L2_FIELD_NONE, |
| 405 | 1, |
| 406 | 0x465, |
| 407 | 90, |
| 408 | 102 |
| 409 | }, |
| 410 | { |
| 411 | V4L2_DV_480P59_94, |
| 412 | tvp7002_parms_480P, |
| 413 | V4L2_COLORSPACE_SMPTE170M, |
| 414 | V4L2_FIELD_NONE, |
| 415 | 1, |
| 416 | 0x20D, |
| 417 | 0xffff, |
| 418 | 0xffff |
| 419 | }, |
| 420 | { |
| 421 | V4L2_DV_576P50, |
| 422 | tvp7002_parms_576P, |
| 423 | V4L2_COLORSPACE_SMPTE170M, |
| 424 | V4L2_FIELD_NONE, |
| 425 | 1, |
| 426 | 0x271, |
| 427 | 0xffff, |
| 428 | 0xffff |
| 429 | } |
| 430 | }; |
| 431 | |
| 432 | #define NUM_PRESETS ARRAY_SIZE(tvp7002_presets) |
| 433 | |
| 434 | /* Device definition */ |
| 435 | struct tvp7002 { |
| 436 | struct v4l2_subdev sd; |
| 437 | const struct tvp7002_config *pdata; |
| 438 | |
| 439 | int ver; |
| 440 | int streaming; |
| 441 | |
| 442 | struct v4l2_pix_format pix; |
| 443 | const struct tvp7002_preset_definition *current_preset; |
| 444 | u8 gain; |
| 445 | }; |
| 446 | |
| 447 | /* |
| 448 | * to_tvp7002 - Obtain device handler TVP7002 |
| 449 | * @sd: ptr to v4l2_subdev struct |
| 450 | * |
| 451 | * Returns device handler tvp7002. |
| 452 | */ |
| 453 | static inline struct tvp7002 *to_tvp7002(struct v4l2_subdev *sd) |
| 454 | { |
| 455 | return container_of(sd, struct tvp7002, sd); |
| 456 | } |
| 457 | |
| 458 | /* |
| 459 | * tvp7002_read - Read a value from a register in an TVP7002 |
| 460 | * @sd: ptr to v4l2_subdev struct |
| 461 | * @reg: TVP7002 register address |
| 462 | * @dst: pointer to 8-bit destination |
| 463 | * |
| 464 | * Returns value read if successful, or non-zero (-1) otherwise. |
| 465 | */ |
| 466 | static int tvp7002_read(struct v4l2_subdev *sd, u8 addr, u8 *dst) |
| 467 | { |
| 468 | struct i2c_client *c = v4l2_get_subdevdata(sd); |
| 469 | int retry; |
| 470 | int error; |
| 471 | |
| 472 | for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { |
| 473 | error = i2c_smbus_read_byte_data(c, addr); |
| 474 | |
| 475 | if (error >= 0) { |
| 476 | *dst = (u8)error; |
| 477 | return 0; |
| 478 | } |
| 479 | |
| 480 | msleep_interruptible(10); |
| 481 | } |
| 482 | v4l2_err(sd, "TVP7002 read error %d\n", error); |
| 483 | return error; |
| 484 | } |
| 485 | |
| 486 | /* |
| 487 | * tvp7002_read_err() - Read a register value with error code |
| 488 | * @sd: pointer to standard V4L2 sub-device structure |
| 489 | * @reg: destination register |
| 490 | * @val: value to be read |
| 491 | * @error: pointer to error value |
| 492 | * |
| 493 | * Read a value in a register and save error value in pointer. |
| 494 | * Also update the register table if successful |
| 495 | */ |
| 496 | static inline void tvp7002_read_err(struct v4l2_subdev *sd, u8 reg, |
| 497 | u8 *dst, int *err) |
| 498 | { |
| 499 | if (!*err) |
| 500 | *err = tvp7002_read(sd, reg, dst); |
| 501 | } |
| 502 | |
| 503 | /* |
| 504 | * tvp7002_write() - Write a value to a register in TVP7002 |
| 505 | * @sd: ptr to v4l2_subdev struct |
| 506 | * @addr: TVP7002 register address |
| 507 | * @value: value to be written to the register |
| 508 | * |
| 509 | * Write a value to a register in an TVP7002 decoder device. |
| 510 | * Returns zero if successful, or non-zero otherwise. |
| 511 | */ |
| 512 | static int tvp7002_write(struct v4l2_subdev *sd, u8 addr, u8 value) |
| 513 | { |
| 514 | struct i2c_client *c; |
| 515 | int retry; |
| 516 | int error; |
| 517 | |
| 518 | c = v4l2_get_subdevdata(sd); |
| 519 | |
| 520 | for (retry = 0; retry < I2C_RETRY_COUNT; retry++) { |
| 521 | error = i2c_smbus_write_byte_data(c, addr, value); |
| 522 | |
| 523 | if (error >= 0) |
| 524 | return 0; |
| 525 | |
| 526 | v4l2_warn(sd, "Write: retry ... %d\n", retry); |
| 527 | msleep_interruptible(10); |
| 528 | } |
| 529 | v4l2_err(sd, "TVP7002 write error %d\n", error); |
| 530 | return error; |
| 531 | } |
| 532 | |
| 533 | /* |
| 534 | * tvp7002_write_err() - Write a register value with error code |
| 535 | * @sd: pointer to standard V4L2 sub-device structure |
| 536 | * @reg: destination register |
| 537 | * @val: value to be written |
| 538 | * @error: pointer to error value |
| 539 | * |
| 540 | * Write a value in a register and save error value in pointer. |
| 541 | * Also update the register table if successful |
| 542 | */ |
| 543 | static inline void tvp7002_write_err(struct v4l2_subdev *sd, u8 reg, |
| 544 | u8 val, int *err) |
| 545 | { |
| 546 | if (!*err) |
| 547 | *err = tvp7002_write(sd, reg, val); |
| 548 | } |
| 549 | |
| 550 | /* |
| 551 | * tvp7002_g_chip_ident() - Get chip identification number |
| 552 | * @sd: ptr to v4l2_subdev struct |
| 553 | * @chip: ptr to v4l2_dbg_chip_ident struct |
| 554 | * |
| 555 | * Obtains the chip's identification number. |
| 556 | * Returns zero or -EINVAL if read operation fails. |
| 557 | */ |
| 558 | static int tvp7002_g_chip_ident(struct v4l2_subdev *sd, |
| 559 | struct v4l2_dbg_chip_ident *chip) |
| 560 | { |
| 561 | u8 rev; |
| 562 | int error; |
| 563 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
| 564 | |
| 565 | error = tvp7002_read(sd, TVP7002_CHIP_REV, &rev); |
| 566 | |
| 567 | if (error < 0) |
| 568 | return error; |
| 569 | |
| 570 | return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_TVP7002, rev); |
| 571 | } |
| 572 | |
| 573 | /* |
| 574 | * tvp7002_write_inittab() - Write initialization values |
| 575 | * @sd: ptr to v4l2_subdev struct |
| 576 | * @regs: ptr to i2c_reg_value struct |
| 577 | * |
| 578 | * Write initialization values. |
| 579 | * Returns zero or -EINVAL if read operation fails. |
| 580 | */ |
| 581 | static int tvp7002_write_inittab(struct v4l2_subdev *sd, |
| 582 | const struct i2c_reg_value *regs) |
| 583 | { |
| 584 | int error = 0; |
| 585 | |
| 586 | /* Initialize the first (defined) registers */ |
| 587 | while (TVP7002_EOR != regs->reg) { |
| 588 | if (TVP7002_WRITE == regs->type) |
| 589 | tvp7002_write_err(sd, regs->reg, regs->value, &error); |
| 590 | regs++; |
| 591 | } |
| 592 | |
| 593 | return error; |
| 594 | } |
| 595 | |
| 596 | /* |
| 597 | * tvp7002_s_dv_preset() - Set digital video preset |
| 598 | * @sd: ptr to v4l2_subdev struct |
| 599 | * @std: ptr to v4l2_dv_preset struct |
| 600 | * |
| 601 | * Set the digital video preset for a TVP7002 decoder device. |
| 602 | * Returns zero when successful or -EINVAL if register access fails. |
| 603 | */ |
| 604 | static int tvp7002_s_dv_preset(struct v4l2_subdev *sd, |
| 605 | struct v4l2_dv_preset *dv_preset) |
| 606 | { |
| 607 | struct tvp7002 *device = to_tvp7002(sd); |
| 608 | u32 preset; |
| 609 | int i; |
| 610 | |
| 611 | for (i = 0; i < NUM_PRESETS; i++) { |
| 612 | preset = tvp7002_presets[i].preset; |
| 613 | if (preset == dv_preset->preset) { |
| 614 | device->current_preset = &tvp7002_presets[i]; |
| 615 | return tvp7002_write_inittab(sd, tvp7002_presets[i].p_settings); |
| 616 | } |
| 617 | } |
| 618 | |
| 619 | return -EINVAL; |
| 620 | } |
| 621 | |
| 622 | /* |
| 623 | * tvp7002_g_ctrl() - Get a control |
| 624 | * @sd: ptr to v4l2_subdev struct |
| 625 | * @ctrl: ptr to v4l2_control struct |
| 626 | * |
| 627 | * Get a control for a TVP7002 decoder device. |
| 628 | * Returns zero when successful or -EINVAL if register access fails. |
| 629 | */ |
| 630 | static int tvp7002_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
| 631 | { |
| 632 | struct tvp7002 *device = to_tvp7002(sd); |
| 633 | |
| 634 | switch (ctrl->id) { |
| 635 | case V4L2_CID_GAIN: |
| 636 | ctrl->value = device->gain; |
| 637 | return 0; |
| 638 | default: |
| 639 | return -EINVAL; |
| 640 | } |
| 641 | } |
| 642 | |
| 643 | /* |
| 644 | * tvp7002_s_ctrl() - Set a control |
| 645 | * @sd: ptr to v4l2_subdev struct |
| 646 | * @ctrl: ptr to v4l2_control struct |
| 647 | * |
| 648 | * Set a control in TVP7002 decoder device. |
| 649 | * Returns zero when successful or -EINVAL if register access fails. |
| 650 | */ |
| 651 | static int tvp7002_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
| 652 | { |
| 653 | struct tvp7002 *device = to_tvp7002(sd); |
| 654 | int error = 0; |
| 655 | |
| 656 | switch (ctrl->id) { |
| 657 | case V4L2_CID_GAIN: |
| 658 | tvp7002_write_err(sd, TVP7002_R_FINE_GAIN, |
| 659 | ctrl->value & 0xff, &error); |
| 660 | tvp7002_write_err(sd, TVP7002_G_FINE_GAIN, |
| 661 | ctrl->value & 0xff, &error); |
| 662 | tvp7002_write_err(sd, TVP7002_B_FINE_GAIN, |
| 663 | ctrl->value & 0xff, &error); |
| 664 | |
| 665 | if (error < 0) |
| 666 | return error; |
| 667 | |
| 668 | /* Set only after knowing there is no error */ |
| 669 | device->gain = ctrl->value & 0xff; |
| 670 | return 0; |
| 671 | default: |
| 672 | return -EINVAL; |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | /* |
| 677 | * tvp7002_queryctrl() - Query a control |
| 678 | * @sd: ptr to v4l2_subdev struct |
| 679 | * @ctrl: ptr to v4l2_queryctrl struct |
| 680 | * |
| 681 | * Query a control of a TVP7002 decoder device. |
| 682 | * Returns zero when successful or -EINVAL if register read fails. |
| 683 | */ |
| 684 | static int tvp7002_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) |
| 685 | { |
| 686 | switch (qc->id) { |
| 687 | case V4L2_CID_GAIN: |
| 688 | /* |
| 689 | * Gain is supported [0-255, default=0, step=1] |
| 690 | */ |
| 691 | return v4l2_ctrl_query_fill(qc, 0, 255, 1, 0); |
| 692 | default: |
| 693 | return -EINVAL; |
| 694 | } |
| 695 | } |
| 696 | |
| 697 | /* |
| 698 | * tvp7002_try_fmt_cap() - V4L2 decoder interface handler for try_fmt |
| 699 | * @sd: pointer to standard V4L2 sub-device structure |
| 700 | * @f: pointer to standard V4L2 VIDIOC_TRY_FMT ioctl structure |
| 701 | * |
| 702 | * Implement the VIDIOC_TRY_FMT ioctl for the CAPTURE buffer type. This |
| 703 | * ioctl is used to negotiate the image capture size and pixel format |
| 704 | * without actually making it take effect. |
| 705 | */ |
| 706 | static int tvp7002_try_fmt_cap(struct v4l2_subdev *sd, struct v4l2_format *f) |
| 707 | { |
| 708 | struct tvp7002 *device = to_tvp7002(sd); |
| 709 | struct v4l2_dv_enum_preset e_preset; |
| 710 | struct v4l2_pix_format *pix; |
| 711 | int error = 0; |
| 712 | |
| 713 | pix = &f->fmt.pix; |
| 714 | |
| 715 | /* Calculate height and width based on current standard */ |
| 716 | error = v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset); |
| 717 | if (error) |
| 718 | return -EINVAL; |
| 719 | |
| 720 | pix->width = e_preset.width; |
| 721 | pix->height = e_preset.height; |
| 722 | pix->pixelformat = V4L2_PIX_FMT_UYVY; |
| 723 | pix->field = device->current_preset->scanmode; |
| 724 | pix->bytesperline = pix->width * 2; |
| 725 | pix->sizeimage = pix->bytesperline * pix->height; |
| 726 | pix->colorspace = device->current_preset->color_space; |
| 727 | pix->priv = 0; |
| 728 | |
| 729 | v4l2_dbg(1, debug, sd, "Try FMT: pixelformat - %s, bytesperline - %d" |
| 730 | "Width - %d, Height - %d", "8-bit UYVY 4:2:2 Format", |
| 731 | pix->bytesperline, pix->width, pix->height); |
| 732 | return error; |
| 733 | } |
| 734 | |
| 735 | /* |
| 736 | * tvp7002_s_fmt() - V4L2 decoder interface handler for s_fmt |
| 737 | * @sd: pointer to standard V4L2 sub-device structure |
| 738 | * @f: pointer to standard V4L2 VIDIOC_S_FMT ioctl structure |
| 739 | * |
| 740 | * If the requested format is supported, configures the HW to use that |
| 741 | * format, returns error code if format not supported or HW can't be |
| 742 | * correctly configured. |
| 743 | */ |
| 744 | static int tvp7002_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *f) |
| 745 | { |
| 746 | struct tvp7002 *decoder = to_tvp7002(sd); |
| 747 | int rval; |
| 748 | |
| 749 | rval = tvp7002_try_fmt_cap(sd, f); |
| 750 | if (!rval) |
| 751 | decoder->pix = f->fmt.pix; |
| 752 | return rval; |
| 753 | } |
| 754 | |
| 755 | /* |
| 756 | * tvp7002_g_fmt() - V4L2 decoder interface handler for tvp7002_g_fmt |
| 757 | * @sd: pointer to standard V4L2 sub-device structure |
| 758 | * @f: pointer to standard V4L2 v4l2_format structure |
| 759 | * |
| 760 | * Returns the decoder's current pixel format in the v4l2_format |
| 761 | * parameter. |
| 762 | */ |
| 763 | static int tvp7002_g_fmt(struct v4l2_subdev *sd, struct v4l2_format *f) |
| 764 | { |
| 765 | struct tvp7002 *decoder = to_tvp7002(sd); |
| 766 | |
| 767 | f->fmt.pix = decoder->pix; |
| 768 | |
| 769 | v4l2_dbg(1, debug, sd, "Current FMT: bytesperline - %d" |
| 770 | "Width - %d, Height - %d", |
| 771 | decoder->pix.bytesperline, |
| 772 | decoder->pix.width, decoder->pix.height); |
| 773 | return 0; |
| 774 | } |
| 775 | |
| 776 | /* |
| 777 | * tvp7002_query_dv_preset() - query DV preset |
| 778 | * @sd: pointer to standard V4L2 sub-device structure |
| 779 | * @std_id: standard V4L2 v4l2_dv_preset |
| 780 | * |
| 781 | * Returns the current DV preset by TVP7002. If no active input is |
| 782 | * detected, returns -EINVAL |
| 783 | */ |
| 784 | static int tvp7002_query_dv_preset(struct v4l2_subdev *sd, |
| 785 | struct v4l2_dv_preset *qpreset) |
| 786 | { |
| 787 | const struct tvp7002_preset_definition *presets = tvp7002_presets; |
| 788 | struct v4l2_dv_enum_preset e_preset; |
| 789 | struct tvp7002 *device; |
| 790 | u8 progressive; |
| 791 | u32 lpfr; |
| 792 | u32 cpln; |
| 793 | int error = 0; |
| 794 | u8 lpf_lsb; |
| 795 | u8 lpf_msb; |
| 796 | u8 cpl_lsb; |
| 797 | u8 cpl_msb; |
| 798 | int index; |
| 799 | |
| 800 | device = to_tvp7002(sd); |
| 801 | |
| 802 | /* Read standards from device registers */ |
| 803 | tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_LSBS, &lpf_lsb, &error); |
| 804 | tvp7002_read_err(sd, TVP7002_L_FRAME_STAT_MSBS, &lpf_msb, &error); |
| 805 | |
| 806 | if (error < 0) |
| 807 | return error; |
| 808 | |
| 809 | tvp7002_read_err(sd, TVP7002_CLK_L_STAT_LSBS, &cpl_lsb, &error); |
| 810 | tvp7002_read_err(sd, TVP7002_CLK_L_STAT_MSBS, &cpl_msb, &error); |
| 811 | |
| 812 | if (error < 0) |
| 813 | return error; |
| 814 | |
| 815 | /* Get lines per frame, clocks per line and interlaced/progresive */ |
| 816 | lpfr = lpf_lsb | ((TVP7002_CL_MASK & lpf_msb) << TVP7002_CL_SHIFT); |
| 817 | cpln = cpl_lsb | ((TVP7002_CL_MASK & cpl_msb) << TVP7002_CL_SHIFT); |
| 818 | progressive = (lpf_msb & TVP7002_INPR_MASK) >> TVP7002_IP_SHIFT; |
| 819 | |
| 820 | /* Do checking of video modes */ |
| 821 | for (index = 0; index < NUM_PRESETS; index++, presets++) |
| 822 | if (lpfr == presets->lines_per_frame && |
| 823 | progressive == presets->progressive) { |
| 824 | if (presets->cpl_min == 0xffff) |
| 825 | break; |
| 826 | if (cpln >= presets->cpl_min && cpln <= presets->cpl_max) |
| 827 | break; |
| 828 | } |
| 829 | |
| 830 | if (index == NUM_PRESETS) { |
| 831 | v4l2_err(sd, "querystd error, lpf = %x, cpl = %x\n", |
| 832 | lpfr, cpln); |
| 833 | return -EINVAL; |
| 834 | } |
| 835 | |
| 836 | if (v4l_fill_dv_preset_info(presets->preset, &e_preset)) |
| 837 | return -EINVAL; |
| 838 | |
| 839 | /* Set values in found preset */ |
| 840 | qpreset->preset = presets->preset; |
| 841 | |
| 842 | /* Update lines per frame and clocks per line info */ |
| 843 | v4l2_dbg(1, debug, sd, "Current preset: %d %d", |
| 844 | e_preset.width, e_preset.height); |
| 845 | return 0; |
| 846 | } |
| 847 | |
| 848 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
| 849 | /* |
| 850 | * tvp7002_g_register() - Get the value of a register |
| 851 | * @sd: ptr to v4l2_subdev struct |
| 852 | * @vreg: ptr to v4l2_dbg_register struct |
| 853 | * |
| 854 | * Get the value of a TVP7002 decoder device register. |
| 855 | * Returns zero when successful, -EINVAL if register read fails or |
| 856 | * access to I2C client fails, -EPERM if the call is not allowed |
| 857 | * by diabled CAP_SYS_ADMIN. |
| 858 | */ |
| 859 | static int tvp7002_g_register(struct v4l2_subdev *sd, |
| 860 | struct v4l2_dbg_register *reg) |
| 861 | { |
| 862 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Hans Verkuil | dfbd5d4 | 2010-02-25 17:34:09 -0300 | [diff] [blame] | 863 | u8 val; |
| 864 | int ret; |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 865 | |
| 866 | if (!v4l2_chip_match_i2c_client(client, ®->match)) |
| 867 | return -EINVAL; |
| 868 | if (!capable(CAP_SYS_ADMIN)) |
| 869 | return -EPERM; |
| 870 | |
Hans Verkuil | dfbd5d4 | 2010-02-25 17:34:09 -0300 | [diff] [blame] | 871 | ret = tvp7002_read(sd, reg->reg & 0xff, &val); |
| 872 | reg->val = val; |
| 873 | return ret; |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 874 | } |
| 875 | |
| 876 | /* |
| 877 | * tvp7002_s_register() - set a control |
| 878 | * @sd: ptr to v4l2_subdev struct |
| 879 | * @ctrl: ptr to v4l2_control struct |
| 880 | * |
| 881 | * Get the value of a TVP7002 decoder device register. |
| 882 | * Returns zero when successful, -EINVAL if register read fails or |
| 883 | * -EPERM if call not allowed. |
| 884 | */ |
| 885 | static int tvp7002_s_register(struct v4l2_subdev *sd, |
| 886 | struct v4l2_dbg_register *reg) |
| 887 | { |
| 888 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 889 | |
| 890 | if (!v4l2_chip_match_i2c_client(client, ®->match)) |
| 891 | return -EINVAL; |
| 892 | if (!capable(CAP_SYS_ADMIN)) |
| 893 | return -EPERM; |
| 894 | |
Hans Verkuil | dfbd5d4 | 2010-02-25 17:34:09 -0300 | [diff] [blame] | 895 | return tvp7002_write(sd, reg->reg & 0xff, reg->val & 0xff); |
Santiago Nunez-Corrales | 0b67553 | 2009-12-21 16:14:04 -0300 | [diff] [blame] | 896 | } |
| 897 | #endif |
| 898 | |
| 899 | /* |
| 900 | * tvp7002_enum_fmt() - Enum supported formats |
| 901 | * @sd: pointer to standard V4L2 sub-device structure |
| 902 | * @enable: pointer to format struct |
| 903 | * |
| 904 | * Enumerate supported formats. |
| 905 | */ |
| 906 | |
| 907 | static int tvp7002_enum_fmt(struct v4l2_subdev *sd, |
| 908 | struct v4l2_fmtdesc *fmtdesc) |
| 909 | { |
| 910 | /* Check requested format index is within range */ |
| 911 | if (fmtdesc->index < 0 || fmtdesc->index >= NUM_FORMATS) |
| 912 | return -EINVAL; |
| 913 | *fmtdesc = tvp7002_fmt_list[fmtdesc->index]; |
| 914 | |
| 915 | return 0; |
| 916 | } |
| 917 | |
| 918 | /* |
| 919 | * tvp7002_s_stream() - V4L2 decoder i/f handler for s_stream |
| 920 | * @sd: pointer to standard V4L2 sub-device structure |
| 921 | * @enable: streaming enable or disable |
| 922 | * |
| 923 | * Sets streaming to enable or disable, if possible. |
| 924 | */ |
| 925 | static int tvp7002_s_stream(struct v4l2_subdev *sd, int enable) |
| 926 | { |
| 927 | struct tvp7002 *device = to_tvp7002(sd); |
| 928 | int error = 0; |
| 929 | |
| 930 | if (device->streaming == enable) |
| 931 | return 0; |
| 932 | |
| 933 | if (enable) { |
| 934 | /* Set output state on (low impedance means stream on) */ |
| 935 | error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x00); |
| 936 | device->streaming = enable; |
| 937 | } else { |
| 938 | /* Set output state off (high impedance means stream off) */ |
| 939 | error = tvp7002_write(sd, TVP7002_MISC_CTL_2, 0x03); |
| 940 | if (error) |
| 941 | v4l2_dbg(1, debug, sd, "Unable to stop streaming\n"); |
| 942 | |
| 943 | device->streaming = enable; |
| 944 | } |
| 945 | |
| 946 | return error; |
| 947 | } |
| 948 | |
| 949 | /* |
| 950 | * tvp7002_log_status() - Print information about register settings |
| 951 | * @sd: ptr to v4l2_subdev struct |
| 952 | * |
| 953 | * Log register values of a TVP7002 decoder device. |
| 954 | * Returns zero or -EINVAL if read operation fails. |
| 955 | */ |
| 956 | static int tvp7002_log_status(struct v4l2_subdev *sd) |
| 957 | { |
| 958 | const struct tvp7002_preset_definition *presets = tvp7002_presets; |
| 959 | struct tvp7002 *device = to_tvp7002(sd); |
| 960 | struct v4l2_dv_enum_preset e_preset; |
| 961 | struct v4l2_dv_preset detected; |
| 962 | int i; |
| 963 | |
| 964 | detected.preset = V4L2_DV_INVALID; |
| 965 | /* Find my current standard*/ |
| 966 | tvp7002_query_dv_preset(sd, &detected); |
| 967 | |
| 968 | /* Print standard related code values */ |
| 969 | for (i = 0; i < NUM_PRESETS; i++, presets++) |
| 970 | if (presets->preset == detected.preset) |
| 971 | break; |
| 972 | |
| 973 | if (v4l_fill_dv_preset_info(device->current_preset->preset, &e_preset)) |
| 974 | return -EINVAL; |
| 975 | |
| 976 | v4l2_info(sd, "Selected DV Preset: %s\n", e_preset.name); |
| 977 | v4l2_info(sd, " Pixels per line: %u\n", e_preset.width); |
| 978 | v4l2_info(sd, " Lines per frame: %u\n\n", e_preset.height); |
| 979 | if (i == NUM_PRESETS) { |
| 980 | v4l2_info(sd, "Detected DV Preset: None\n"); |
| 981 | } else { |
| 982 | if (v4l_fill_dv_preset_info(presets->preset, &e_preset)) |
| 983 | return -EINVAL; |
| 984 | v4l2_info(sd, "Detected DV Preset: %s\n", e_preset.name); |
| 985 | v4l2_info(sd, " Pixels per line: %u\n", e_preset.width); |
| 986 | v4l2_info(sd, " Lines per frame: %u\n\n", e_preset.height); |
| 987 | } |
| 988 | v4l2_info(sd, "Streaming enabled: %s\n", |
| 989 | device->streaming ? "yes" : "no"); |
| 990 | |
| 991 | /* Print the current value of the gain control */ |
| 992 | v4l2_info(sd, "Gain: %u\n", device->gain); |
| 993 | |
| 994 | return 0; |
| 995 | } |
| 996 | |
| 997 | /* V4L2 core operation handlers */ |
| 998 | static const struct v4l2_subdev_core_ops tvp7002_core_ops = { |
| 999 | .g_chip_ident = tvp7002_g_chip_ident, |
| 1000 | .log_status = tvp7002_log_status, |
| 1001 | .g_ctrl = tvp7002_g_ctrl, |
| 1002 | .s_ctrl = tvp7002_s_ctrl, |
| 1003 | .queryctrl = tvp7002_queryctrl, |
| 1004 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
| 1005 | .g_register = tvp7002_g_register, |
| 1006 | .s_register = tvp7002_s_register, |
| 1007 | #endif |
| 1008 | }; |
| 1009 | |
| 1010 | /* Specific video subsystem operation handlers */ |
| 1011 | static const struct v4l2_subdev_video_ops tvp7002_video_ops = { |
| 1012 | .s_dv_preset = tvp7002_s_dv_preset, |
| 1013 | .query_dv_preset = tvp7002_query_dv_preset, |
| 1014 | .s_stream = tvp7002_s_stream, |
| 1015 | .g_fmt = tvp7002_g_fmt, |
| 1016 | .s_fmt = tvp7002_s_fmt, |
| 1017 | .enum_fmt = tvp7002_enum_fmt, |
| 1018 | }; |
| 1019 | |
| 1020 | /* V4L2 top level operation handlers */ |
| 1021 | static const struct v4l2_subdev_ops tvp7002_ops = { |
| 1022 | .core = &tvp7002_core_ops, |
| 1023 | .video = &tvp7002_video_ops, |
| 1024 | }; |
| 1025 | |
| 1026 | static struct tvp7002 tvp7002_dev = { |
| 1027 | .streaming = 0, |
| 1028 | |
| 1029 | .pix = { |
| 1030 | .width = 1280, |
| 1031 | .height = 720, |
| 1032 | .pixelformat = V4L2_PIX_FMT_UYVY, |
| 1033 | .field = V4L2_FIELD_NONE, |
| 1034 | .bytesperline = 1280 * 2, |
| 1035 | .sizeimage = 1280 * 2 * 720, |
| 1036 | .colorspace = V4L2_COLORSPACE_REC709, |
| 1037 | }, |
| 1038 | |
| 1039 | .current_preset = tvp7002_presets, |
| 1040 | .gain = 0, |
| 1041 | }; |
| 1042 | |
| 1043 | /* |
| 1044 | * tvp7002_probe - Probe a TVP7002 device |
| 1045 | * @sd: ptr to v4l2_subdev struct |
| 1046 | * @ctrl: ptr to i2c_device_id struct |
| 1047 | * |
| 1048 | * Initialize the TVP7002 device |
| 1049 | * Returns zero when successful, -EINVAL if register read fails or |
| 1050 | * -EIO if i2c access is not available. |
| 1051 | */ |
| 1052 | static int tvp7002_probe(struct i2c_client *c, const struct i2c_device_id *id) |
| 1053 | { |
| 1054 | struct v4l2_subdev *sd; |
| 1055 | struct tvp7002 *device; |
| 1056 | struct v4l2_dv_preset preset; |
| 1057 | int polarity_a; |
| 1058 | int polarity_b; |
| 1059 | u8 revision; |
| 1060 | |
| 1061 | int error; |
| 1062 | |
| 1063 | /* Check if the adapter supports the needed features */ |
| 1064 | if (!i2c_check_functionality(c->adapter, |
| 1065 | I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) |
| 1066 | return -EIO; |
| 1067 | |
| 1068 | if (!c->dev.platform_data) { |
| 1069 | v4l_err(c, "No platform data!!\n"); |
| 1070 | return -ENODEV; |
| 1071 | } |
| 1072 | |
| 1073 | device = kmalloc(sizeof(struct tvp7002), GFP_KERNEL); |
| 1074 | |
| 1075 | if (!device) |
| 1076 | return -ENOMEM; |
| 1077 | |
| 1078 | *device = tvp7002_dev; |
| 1079 | sd = &device->sd; |
| 1080 | device->pdata = c->dev.platform_data; |
| 1081 | |
| 1082 | /* Tell v4l2 the device is ready */ |
| 1083 | v4l2_i2c_subdev_init(sd, c, &tvp7002_ops); |
| 1084 | v4l_info(c, "tvp7002 found @ 0x%02x (%s)\n", |
| 1085 | c->addr, c->adapter->name); |
| 1086 | |
| 1087 | error = tvp7002_read(sd, TVP7002_CHIP_REV, &revision); |
| 1088 | if (error < 0) |
| 1089 | goto found_error; |
| 1090 | |
| 1091 | /* Get revision number */ |
| 1092 | v4l2_info(sd, "Rev. %02x detected.\n", revision); |
| 1093 | if (revision != 0x02) |
| 1094 | v4l2_info(sd, "Unknown revision detected.\n"); |
| 1095 | |
| 1096 | /* Initializes TVP7002 to its default values */ |
| 1097 | error = tvp7002_write_inittab(sd, tvp7002_init_default); |
| 1098 | |
| 1099 | if (error < 0) |
| 1100 | goto found_error; |
| 1101 | |
| 1102 | /* Set polarity information after registers have been set */ |
| 1103 | polarity_a = 0x20 | device->pdata->hs_polarity << 5 |
| 1104 | | device->pdata->vs_polarity << 2; |
| 1105 | error = tvp7002_write(sd, TVP7002_SYNC_CTL_1, polarity_a); |
| 1106 | if (error < 0) |
| 1107 | goto found_error; |
| 1108 | |
| 1109 | polarity_b = 0x01 | device->pdata->fid_polarity << 2 |
| 1110 | | device->pdata->sog_polarity << 1 |
| 1111 | | device->pdata->clk_polarity; |
| 1112 | error = tvp7002_write(sd, TVP7002_MISC_CTL_3, polarity_b); |
| 1113 | if (error < 0) |
| 1114 | goto found_error; |
| 1115 | |
| 1116 | /* Set registers according to default video mode */ |
| 1117 | preset.preset = device->current_preset->preset; |
| 1118 | error = tvp7002_s_dv_preset(sd, &preset); |
| 1119 | |
| 1120 | found_error: |
| 1121 | if (error < 0) |
| 1122 | kfree(device); |
| 1123 | |
| 1124 | return error; |
| 1125 | } |
| 1126 | |
| 1127 | /* |
| 1128 | * tvp7002_remove - Remove TVP7002 device support |
| 1129 | * @c: ptr to i2c_client struct |
| 1130 | * |
| 1131 | * Reset the TVP7002 device |
| 1132 | * Returns zero. |
| 1133 | */ |
| 1134 | static int tvp7002_remove(struct i2c_client *c) |
| 1135 | { |
| 1136 | struct v4l2_subdev *sd = i2c_get_clientdata(c); |
| 1137 | struct tvp7002 *device = to_tvp7002(sd); |
| 1138 | |
| 1139 | v4l2_dbg(1, debug, sd, "Removing tvp7002 adapter" |
| 1140 | "on address 0x%x\n", c->addr); |
| 1141 | |
| 1142 | v4l2_device_unregister_subdev(sd); |
| 1143 | kfree(device); |
| 1144 | return 0; |
| 1145 | } |
| 1146 | |
| 1147 | /* I2C Device ID table */ |
| 1148 | static const struct i2c_device_id tvp7002_id[] = { |
| 1149 | { "tvp7002", 0 }, |
| 1150 | { } |
| 1151 | }; |
| 1152 | MODULE_DEVICE_TABLE(i2c, tvp7002_id); |
| 1153 | |
| 1154 | /* I2C driver data */ |
| 1155 | static struct i2c_driver tvp7002_driver = { |
| 1156 | .driver = { |
| 1157 | .owner = THIS_MODULE, |
| 1158 | .name = TVP7002_MODULE_NAME, |
| 1159 | }, |
| 1160 | .probe = tvp7002_probe, |
| 1161 | .remove = tvp7002_remove, |
| 1162 | .id_table = tvp7002_id, |
| 1163 | }; |
| 1164 | |
| 1165 | /* |
| 1166 | * tvp7002_init - Initialize driver via I2C interface |
| 1167 | * |
| 1168 | * Register the TVP7002 driver. |
| 1169 | * Return 0 on success or error code on failure. |
| 1170 | */ |
| 1171 | static int __init tvp7002_init(void) |
| 1172 | { |
| 1173 | return i2c_add_driver(&tvp7002_driver); |
| 1174 | } |
| 1175 | |
| 1176 | /* |
| 1177 | * tvp7002_exit - Remove driver via I2C interface |
| 1178 | * |
| 1179 | * Unregister the TVP7002 driver. |
| 1180 | * Returns nothing. |
| 1181 | */ |
| 1182 | static void __exit tvp7002_exit(void) |
| 1183 | { |
| 1184 | i2c_del_driver(&tvp7002_driver); |
| 1185 | } |
| 1186 | |
| 1187 | module_init(tvp7002_init); |
| 1188 | module_exit(tvp7002_exit); |