1459ee17cSMauro Carvalho Chehab // SPDX-License-Identifier: GPL-2.0 2459ee17cSMauro Carvalho Chehab // 3459ee17cSMauro Carvalho Chehab // mt9v011 -Micron 1/4-Inch VGA Digital Image Sensor 4459ee17cSMauro Carvalho Chehab // 5459ee17cSMauro Carvalho Chehab // Copyright (c) 2009 Mauro Carvalho Chehab <mchehab@kernel.org> 6cb7a01acSMauro Carvalho Chehab 7cb7a01acSMauro Carvalho Chehab #include <linux/i2c.h> 8cb7a01acSMauro Carvalho Chehab #include <linux/slab.h> 9cb7a01acSMauro Carvalho Chehab #include <linux/videodev2.h> 10cb7a01acSMauro Carvalho Chehab #include <linux/delay.h> 11cb7a01acSMauro Carvalho Chehab #include <linux/module.h> 12cb7a01acSMauro Carvalho Chehab #include <asm/div64.h> 13cb7a01acSMauro Carvalho Chehab #include <media/v4l2-device.h> 14ea01a83dSHans Verkuil #include <media/v4l2-ctrls.h> 15b5dcee22SMauro Carvalho Chehab #include <media/i2c/mt9v011.h> 16cb7a01acSMauro Carvalho Chehab 17cb7a01acSMauro Carvalho Chehab MODULE_DESCRIPTION("Micron mt9v011 sensor driver"); 1837e59f87SMauro Carvalho Chehab MODULE_AUTHOR("Mauro Carvalho Chehab"); 19459ee17cSMauro Carvalho Chehab MODULE_LICENSE("GPL v2"); 20cb7a01acSMauro Carvalho Chehab 21cb7a01acSMauro Carvalho Chehab static int debug; 22cb7a01acSMauro Carvalho Chehab module_param(debug, int, 0); 23cb7a01acSMauro Carvalho Chehab MODULE_PARM_DESC(debug, "Debug level (0-2)"); 24cb7a01acSMauro Carvalho Chehab 25cb7a01acSMauro Carvalho Chehab #define R00_MT9V011_CHIP_VERSION 0x00 26cb7a01acSMauro Carvalho Chehab #define R01_MT9V011_ROWSTART 0x01 27cb7a01acSMauro Carvalho Chehab #define R02_MT9V011_COLSTART 0x02 28cb7a01acSMauro Carvalho Chehab #define R03_MT9V011_HEIGHT 0x03 29cb7a01acSMauro Carvalho Chehab #define R04_MT9V011_WIDTH 0x04 30cb7a01acSMauro Carvalho Chehab #define R05_MT9V011_HBLANK 0x05 31cb7a01acSMauro Carvalho Chehab #define R06_MT9V011_VBLANK 0x06 32cb7a01acSMauro Carvalho Chehab #define R07_MT9V011_OUT_CTRL 0x07 33cb7a01acSMauro Carvalho Chehab #define R09_MT9V011_SHUTTER_WIDTH 0x09 34cb7a01acSMauro Carvalho Chehab #define R0A_MT9V011_CLK_SPEED 0x0a 35cb7a01acSMauro Carvalho Chehab #define R0B_MT9V011_RESTART 0x0b 36cb7a01acSMauro Carvalho Chehab #define R0C_MT9V011_SHUTTER_DELAY 0x0c 37cb7a01acSMauro Carvalho Chehab #define R0D_MT9V011_RESET 0x0d 38cb7a01acSMauro Carvalho Chehab #define R1E_MT9V011_DIGITAL_ZOOM 0x1e 39cb7a01acSMauro Carvalho Chehab #define R20_MT9V011_READ_MODE 0x20 40cb7a01acSMauro Carvalho Chehab #define R2B_MT9V011_GREEN_1_GAIN 0x2b 41cb7a01acSMauro Carvalho Chehab #define R2C_MT9V011_BLUE_GAIN 0x2c 42cb7a01acSMauro Carvalho Chehab #define R2D_MT9V011_RED_GAIN 0x2d 43cb7a01acSMauro Carvalho Chehab #define R2E_MT9V011_GREEN_2_GAIN 0x2e 44cb7a01acSMauro Carvalho Chehab #define R35_MT9V011_GLOBAL_GAIN 0x35 45cb7a01acSMauro Carvalho Chehab #define RF1_MT9V011_CHIP_ENABLE 0xf1 46cb7a01acSMauro Carvalho Chehab 47cb7a01acSMauro Carvalho Chehab #define MT9V011_VERSION 0x8232 48cb7a01acSMauro Carvalho Chehab #define MT9V011_REV_B_VERSION 0x8243 49cb7a01acSMauro Carvalho Chehab 50cb7a01acSMauro Carvalho Chehab struct mt9v011 { 51cb7a01acSMauro Carvalho Chehab struct v4l2_subdev sd; 52ac88fce9SMauro Carvalho Chehab #ifdef CONFIG_MEDIA_CONTROLLER 53ac88fce9SMauro Carvalho Chehab struct media_pad pad; 54ac88fce9SMauro Carvalho Chehab #endif 55ea01a83dSHans Verkuil struct v4l2_ctrl_handler ctrls; 56cb7a01acSMauro Carvalho Chehab unsigned width, height; 57cb7a01acSMauro Carvalho Chehab unsigned xtal; 58cb7a01acSMauro Carvalho Chehab unsigned hflip:1; 59cb7a01acSMauro Carvalho Chehab unsigned vflip:1; 60cb7a01acSMauro Carvalho Chehab 61cb7a01acSMauro Carvalho Chehab u16 global_gain, exposure; 62cb7a01acSMauro Carvalho Chehab s16 red_bal, blue_bal; 63cb7a01acSMauro Carvalho Chehab }; 64cb7a01acSMauro Carvalho Chehab 65cb7a01acSMauro Carvalho Chehab static inline struct mt9v011 *to_mt9v011(struct v4l2_subdev *sd) 66cb7a01acSMauro Carvalho Chehab { 67cb7a01acSMauro Carvalho Chehab return container_of(sd, struct mt9v011, sd); 68cb7a01acSMauro Carvalho Chehab } 69cb7a01acSMauro Carvalho Chehab 70cb7a01acSMauro Carvalho Chehab static int mt9v011_read(struct v4l2_subdev *sd, unsigned char addr) 71cb7a01acSMauro Carvalho Chehab { 72cb7a01acSMauro Carvalho Chehab struct i2c_client *c = v4l2_get_subdevdata(sd); 73cb7a01acSMauro Carvalho Chehab __be16 buffer; 74cb7a01acSMauro Carvalho Chehab int rc, val; 75cb7a01acSMauro Carvalho Chehab 76cb7a01acSMauro Carvalho Chehab rc = i2c_master_send(c, &addr, 1); 77cb7a01acSMauro Carvalho Chehab if (rc != 1) 78cb7a01acSMauro Carvalho Chehab v4l2_dbg(0, debug, sd, 79cb7a01acSMauro Carvalho Chehab "i2c i/o error: rc == %d (should be 1)\n", rc); 80cb7a01acSMauro Carvalho Chehab 81cb7a01acSMauro Carvalho Chehab msleep(10); 82cb7a01acSMauro Carvalho Chehab 83cb7a01acSMauro Carvalho Chehab rc = i2c_master_recv(c, (char *)&buffer, 2); 84cb7a01acSMauro Carvalho Chehab if (rc != 2) 85cb7a01acSMauro Carvalho Chehab v4l2_dbg(0, debug, sd, 86cb7a01acSMauro Carvalho Chehab "i2c i/o error: rc == %d (should be 2)\n", rc); 87cb7a01acSMauro Carvalho Chehab 88cb7a01acSMauro Carvalho Chehab val = be16_to_cpu(buffer); 89cb7a01acSMauro Carvalho Chehab 90cb7a01acSMauro Carvalho Chehab v4l2_dbg(2, debug, sd, "mt9v011: read 0x%02x = 0x%04x\n", addr, val); 91cb7a01acSMauro Carvalho Chehab 92cb7a01acSMauro Carvalho Chehab return val; 93cb7a01acSMauro Carvalho Chehab } 94cb7a01acSMauro Carvalho Chehab 95cb7a01acSMauro Carvalho Chehab static void mt9v011_write(struct v4l2_subdev *sd, unsigned char addr, 96cb7a01acSMauro Carvalho Chehab u16 value) 97cb7a01acSMauro Carvalho Chehab { 98cb7a01acSMauro Carvalho Chehab struct i2c_client *c = v4l2_get_subdevdata(sd); 99cb7a01acSMauro Carvalho Chehab unsigned char buffer[3]; 100cb7a01acSMauro Carvalho Chehab int rc; 101cb7a01acSMauro Carvalho Chehab 102cb7a01acSMauro Carvalho Chehab buffer[0] = addr; 103cb7a01acSMauro Carvalho Chehab buffer[1] = value >> 8; 104cb7a01acSMauro Carvalho Chehab buffer[2] = value & 0xff; 105cb7a01acSMauro Carvalho Chehab 106cb7a01acSMauro Carvalho Chehab v4l2_dbg(2, debug, sd, 107cb7a01acSMauro Carvalho Chehab "mt9v011: writing 0x%02x 0x%04x\n", buffer[0], value); 108cb7a01acSMauro Carvalho Chehab rc = i2c_master_send(c, buffer, 3); 109cb7a01acSMauro Carvalho Chehab if (rc != 3) 110cb7a01acSMauro Carvalho Chehab v4l2_dbg(0, debug, sd, 111cb7a01acSMauro Carvalho Chehab "i2c i/o error: rc == %d (should be 3)\n", rc); 112cb7a01acSMauro Carvalho Chehab } 113cb7a01acSMauro Carvalho Chehab 114cb7a01acSMauro Carvalho Chehab 115cb7a01acSMauro Carvalho Chehab struct i2c_reg_value { 116cb7a01acSMauro Carvalho Chehab unsigned char reg; 117cb7a01acSMauro Carvalho Chehab u16 value; 118cb7a01acSMauro Carvalho Chehab }; 119cb7a01acSMauro Carvalho Chehab 120cb7a01acSMauro Carvalho Chehab /* 121cb7a01acSMauro Carvalho Chehab * Values used at the original driver 122cb7a01acSMauro Carvalho Chehab * Some values are marked as Reserved at the datasheet 123cb7a01acSMauro Carvalho Chehab */ 124cb7a01acSMauro Carvalho Chehab static const struct i2c_reg_value mt9v011_init_default[] = { 125cb7a01acSMauro Carvalho Chehab { R0D_MT9V011_RESET, 0x0001 }, 126cb7a01acSMauro Carvalho Chehab { R0D_MT9V011_RESET, 0x0000 }, 127cb7a01acSMauro Carvalho Chehab 128cb7a01acSMauro Carvalho Chehab { R0C_MT9V011_SHUTTER_DELAY, 0x0000 }, 129cb7a01acSMauro Carvalho Chehab { R09_MT9V011_SHUTTER_WIDTH, 0x1fc }, 130cb7a01acSMauro Carvalho Chehab 131cb7a01acSMauro Carvalho Chehab { R0A_MT9V011_CLK_SPEED, 0x0000 }, 132cb7a01acSMauro Carvalho Chehab { R1E_MT9V011_DIGITAL_ZOOM, 0x0000 }, 133cb7a01acSMauro Carvalho Chehab 134cb7a01acSMauro Carvalho Chehab { R07_MT9V011_OUT_CTRL, 0x0002 }, /* chip enable */ 135cb7a01acSMauro Carvalho Chehab }; 136cb7a01acSMauro Carvalho Chehab 137cb7a01acSMauro Carvalho Chehab 138cb7a01acSMauro Carvalho Chehab static u16 calc_mt9v011_gain(s16 lineargain) 139cb7a01acSMauro Carvalho Chehab { 140cb7a01acSMauro Carvalho Chehab 141cb7a01acSMauro Carvalho Chehab u16 digitalgain = 0; 142cb7a01acSMauro Carvalho Chehab u16 analogmult = 0; 143cb7a01acSMauro Carvalho Chehab u16 analoginit = 0; 144cb7a01acSMauro Carvalho Chehab 145cb7a01acSMauro Carvalho Chehab if (lineargain < 0) 146cb7a01acSMauro Carvalho Chehab lineargain = 0; 147cb7a01acSMauro Carvalho Chehab 148cb7a01acSMauro Carvalho Chehab /* recommended minimum */ 149cb7a01acSMauro Carvalho Chehab lineargain += 0x0020; 150cb7a01acSMauro Carvalho Chehab 151cb7a01acSMauro Carvalho Chehab if (lineargain > 2047) 152cb7a01acSMauro Carvalho Chehab lineargain = 2047; 153cb7a01acSMauro Carvalho Chehab 154cb7a01acSMauro Carvalho Chehab if (lineargain > 1023) { 155cb7a01acSMauro Carvalho Chehab digitalgain = 3; 156cb7a01acSMauro Carvalho Chehab analogmult = 3; 157cb7a01acSMauro Carvalho Chehab analoginit = lineargain / 16; 158cb7a01acSMauro Carvalho Chehab } else if (lineargain > 511) { 159cb7a01acSMauro Carvalho Chehab digitalgain = 1; 160cb7a01acSMauro Carvalho Chehab analogmult = 3; 161cb7a01acSMauro Carvalho Chehab analoginit = lineargain / 8; 162cb7a01acSMauro Carvalho Chehab } else if (lineargain > 255) { 163cb7a01acSMauro Carvalho Chehab analogmult = 3; 164cb7a01acSMauro Carvalho Chehab analoginit = lineargain / 4; 165cb7a01acSMauro Carvalho Chehab } else if (lineargain > 127) { 166cb7a01acSMauro Carvalho Chehab analogmult = 1; 167cb7a01acSMauro Carvalho Chehab analoginit = lineargain / 2; 168cb7a01acSMauro Carvalho Chehab } else 169cb7a01acSMauro Carvalho Chehab analoginit = lineargain; 170cb7a01acSMauro Carvalho Chehab 171cb7a01acSMauro Carvalho Chehab return analoginit + (analogmult << 7) + (digitalgain << 9); 172cb7a01acSMauro Carvalho Chehab 173cb7a01acSMauro Carvalho Chehab } 174cb7a01acSMauro Carvalho Chehab 175cb7a01acSMauro Carvalho Chehab static void set_balance(struct v4l2_subdev *sd) 176cb7a01acSMauro Carvalho Chehab { 177cb7a01acSMauro Carvalho Chehab struct mt9v011 *core = to_mt9v011(sd); 178cb7a01acSMauro Carvalho Chehab u16 green_gain, blue_gain, red_gain; 179cb7a01acSMauro Carvalho Chehab u16 exposure; 180cb7a01acSMauro Carvalho Chehab s16 bal; 181cb7a01acSMauro Carvalho Chehab 182cb7a01acSMauro Carvalho Chehab exposure = core->exposure; 183cb7a01acSMauro Carvalho Chehab 184cb7a01acSMauro Carvalho Chehab green_gain = calc_mt9v011_gain(core->global_gain); 185cb7a01acSMauro Carvalho Chehab 186cb7a01acSMauro Carvalho Chehab bal = core->global_gain; 187cb7a01acSMauro Carvalho Chehab bal += (core->blue_bal * core->global_gain / (1 << 7)); 188cb7a01acSMauro Carvalho Chehab blue_gain = calc_mt9v011_gain(bal); 189cb7a01acSMauro Carvalho Chehab 190cb7a01acSMauro Carvalho Chehab bal = core->global_gain; 191cb7a01acSMauro Carvalho Chehab bal += (core->red_bal * core->global_gain / (1 << 7)); 192cb7a01acSMauro Carvalho Chehab red_gain = calc_mt9v011_gain(bal); 193cb7a01acSMauro Carvalho Chehab 194cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, R2B_MT9V011_GREEN_1_GAIN, green_gain); 195cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, R2E_MT9V011_GREEN_2_GAIN, green_gain); 196cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, R2C_MT9V011_BLUE_GAIN, blue_gain); 197cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, R2D_MT9V011_RED_GAIN, red_gain); 198cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, R09_MT9V011_SHUTTER_WIDTH, exposure); 199cb7a01acSMauro Carvalho Chehab } 200cb7a01acSMauro Carvalho Chehab 201cb7a01acSMauro Carvalho Chehab static void calc_fps(struct v4l2_subdev *sd, u32 *numerator, u32 *denominator) 202cb7a01acSMauro Carvalho Chehab { 203cb7a01acSMauro Carvalho Chehab struct mt9v011 *core = to_mt9v011(sd); 204cb7a01acSMauro Carvalho Chehab unsigned height, width, hblank, vblank, speed; 205cb7a01acSMauro Carvalho Chehab unsigned row_time, t_time; 206cb7a01acSMauro Carvalho Chehab u64 frames_per_ms; 207cb7a01acSMauro Carvalho Chehab unsigned tmp; 208cb7a01acSMauro Carvalho Chehab 209cb7a01acSMauro Carvalho Chehab height = mt9v011_read(sd, R03_MT9V011_HEIGHT); 210cb7a01acSMauro Carvalho Chehab width = mt9v011_read(sd, R04_MT9V011_WIDTH); 211cb7a01acSMauro Carvalho Chehab hblank = mt9v011_read(sd, R05_MT9V011_HBLANK); 212cb7a01acSMauro Carvalho Chehab vblank = mt9v011_read(sd, R06_MT9V011_VBLANK); 213cb7a01acSMauro Carvalho Chehab speed = mt9v011_read(sd, R0A_MT9V011_CLK_SPEED); 214cb7a01acSMauro Carvalho Chehab 215cb7a01acSMauro Carvalho Chehab row_time = (width + 113 + hblank) * (speed + 2); 216cb7a01acSMauro Carvalho Chehab t_time = row_time * (height + vblank + 1); 217cb7a01acSMauro Carvalho Chehab 218cb7a01acSMauro Carvalho Chehab frames_per_ms = core->xtal * 1000l; 219cb7a01acSMauro Carvalho Chehab do_div(frames_per_ms, t_time); 220cb7a01acSMauro Carvalho Chehab tmp = frames_per_ms; 221cb7a01acSMauro Carvalho Chehab 222cb7a01acSMauro Carvalho Chehab v4l2_dbg(1, debug, sd, "Programmed to %u.%03u fps (%d pixel clcks)\n", 223cb7a01acSMauro Carvalho Chehab tmp / 1000, tmp % 1000, t_time); 224cb7a01acSMauro Carvalho Chehab 225cb7a01acSMauro Carvalho Chehab if (numerator && denominator) { 226cb7a01acSMauro Carvalho Chehab *numerator = 1000; 227cb7a01acSMauro Carvalho Chehab *denominator = (u32)frames_per_ms; 228cb7a01acSMauro Carvalho Chehab } 229cb7a01acSMauro Carvalho Chehab } 230cb7a01acSMauro Carvalho Chehab 231cb7a01acSMauro Carvalho Chehab static u16 calc_speed(struct v4l2_subdev *sd, u32 numerator, u32 denominator) 232cb7a01acSMauro Carvalho Chehab { 233cb7a01acSMauro Carvalho Chehab struct mt9v011 *core = to_mt9v011(sd); 234cb7a01acSMauro Carvalho Chehab unsigned height, width, hblank, vblank; 235cb7a01acSMauro Carvalho Chehab unsigned row_time, line_time; 236cb7a01acSMauro Carvalho Chehab u64 t_time, speed; 237cb7a01acSMauro Carvalho Chehab 238cb7a01acSMauro Carvalho Chehab /* Avoid bogus calculus */ 239cb7a01acSMauro Carvalho Chehab if (!numerator || !denominator) 240cb7a01acSMauro Carvalho Chehab return 0; 241cb7a01acSMauro Carvalho Chehab 242cb7a01acSMauro Carvalho Chehab height = mt9v011_read(sd, R03_MT9V011_HEIGHT); 243cb7a01acSMauro Carvalho Chehab width = mt9v011_read(sd, R04_MT9V011_WIDTH); 244cb7a01acSMauro Carvalho Chehab hblank = mt9v011_read(sd, R05_MT9V011_HBLANK); 245cb7a01acSMauro Carvalho Chehab vblank = mt9v011_read(sd, R06_MT9V011_VBLANK); 246cb7a01acSMauro Carvalho Chehab 247cb7a01acSMauro Carvalho Chehab row_time = width + 113 + hblank; 248cb7a01acSMauro Carvalho Chehab line_time = height + vblank + 1; 249cb7a01acSMauro Carvalho Chehab 250cb7a01acSMauro Carvalho Chehab t_time = core->xtal * ((u64)numerator); 251cb7a01acSMauro Carvalho Chehab /* round to the closest value */ 252cb7a01acSMauro Carvalho Chehab t_time += denominator / 2; 253cb7a01acSMauro Carvalho Chehab do_div(t_time, denominator); 254cb7a01acSMauro Carvalho Chehab 255cb7a01acSMauro Carvalho Chehab speed = t_time; 256cb7a01acSMauro Carvalho Chehab do_div(speed, row_time * line_time); 257cb7a01acSMauro Carvalho Chehab 258cb7a01acSMauro Carvalho Chehab /* Avoid having a negative value for speed */ 259cb7a01acSMauro Carvalho Chehab if (speed < 2) 260cb7a01acSMauro Carvalho Chehab speed = 0; 261cb7a01acSMauro Carvalho Chehab else 262cb7a01acSMauro Carvalho Chehab speed -= 2; 263cb7a01acSMauro Carvalho Chehab 264cb7a01acSMauro Carvalho Chehab /* Avoid speed overflow */ 265cb7a01acSMauro Carvalho Chehab if (speed > 15) 266cb7a01acSMauro Carvalho Chehab return 15; 267cb7a01acSMauro Carvalho Chehab 268cb7a01acSMauro Carvalho Chehab return (u16)speed; 269cb7a01acSMauro Carvalho Chehab } 270cb7a01acSMauro Carvalho Chehab 271cb7a01acSMauro Carvalho Chehab static void set_res(struct v4l2_subdev *sd) 272cb7a01acSMauro Carvalho Chehab { 273cb7a01acSMauro Carvalho Chehab struct mt9v011 *core = to_mt9v011(sd); 274cb7a01acSMauro Carvalho Chehab unsigned vstart, hstart; 275cb7a01acSMauro Carvalho Chehab 276cb7a01acSMauro Carvalho Chehab /* 277cb7a01acSMauro Carvalho Chehab * The mt9v011 doesn't have scaling. So, in order to select the desired 278cb7a01acSMauro Carvalho Chehab * resolution, we're cropping at the middle of the sensor. 279cb7a01acSMauro Carvalho Chehab * hblank and vblank should be adjusted, in order to warrant that 280cb7a01acSMauro Carvalho Chehab * we'll preserve the line timings for 30 fps, no matter what resolution 281cb7a01acSMauro Carvalho Chehab * is selected. 282cb7a01acSMauro Carvalho Chehab * NOTE: datasheet says that width (and height) should be filled with 283cb7a01acSMauro Carvalho Chehab * width-1. However, this doesn't work, since one pixel per line will 284cb7a01acSMauro Carvalho Chehab * be missing. 285cb7a01acSMauro Carvalho Chehab */ 286cb7a01acSMauro Carvalho Chehab 287cb7a01acSMauro Carvalho Chehab hstart = 20 + (640 - core->width) / 2; 288cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, R02_MT9V011_COLSTART, hstart); 289cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, R04_MT9V011_WIDTH, core->width); 290cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, R05_MT9V011_HBLANK, 771 - core->width); 291cb7a01acSMauro Carvalho Chehab 292cb7a01acSMauro Carvalho Chehab vstart = 8 + (480 - core->height) / 2; 293cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, R01_MT9V011_ROWSTART, vstart); 294cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, R03_MT9V011_HEIGHT, core->height); 295cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, R06_MT9V011_VBLANK, 508 - core->height); 296cb7a01acSMauro Carvalho Chehab 297cb7a01acSMauro Carvalho Chehab calc_fps(sd, NULL, NULL); 298cb7a01acSMauro Carvalho Chehab }; 299cb7a01acSMauro Carvalho Chehab 300cb7a01acSMauro Carvalho Chehab static void set_read_mode(struct v4l2_subdev *sd) 301cb7a01acSMauro Carvalho Chehab { 302cb7a01acSMauro Carvalho Chehab struct mt9v011 *core = to_mt9v011(sd); 303cb7a01acSMauro Carvalho Chehab unsigned mode = 0x1000; 304cb7a01acSMauro Carvalho Chehab 305cb7a01acSMauro Carvalho Chehab if (core->hflip) 306cb7a01acSMauro Carvalho Chehab mode |= 0x4000; 307cb7a01acSMauro Carvalho Chehab 308cb7a01acSMauro Carvalho Chehab if (core->vflip) 309cb7a01acSMauro Carvalho Chehab mode |= 0x8000; 310cb7a01acSMauro Carvalho Chehab 311cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, R20_MT9V011_READ_MODE, mode); 312cb7a01acSMauro Carvalho Chehab } 313cb7a01acSMauro Carvalho Chehab 314cb7a01acSMauro Carvalho Chehab static int mt9v011_reset(struct v4l2_subdev *sd, u32 val) 315cb7a01acSMauro Carvalho Chehab { 316cb7a01acSMauro Carvalho Chehab int i; 317cb7a01acSMauro Carvalho Chehab 318cb7a01acSMauro Carvalho Chehab for (i = 0; i < ARRAY_SIZE(mt9v011_init_default); i++) 319cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, mt9v011_init_default[i].reg, 320cb7a01acSMauro Carvalho Chehab mt9v011_init_default[i].value); 321cb7a01acSMauro Carvalho Chehab 322cb7a01acSMauro Carvalho Chehab set_balance(sd); 323cb7a01acSMauro Carvalho Chehab set_res(sd); 324cb7a01acSMauro Carvalho Chehab set_read_mode(sd); 325cb7a01acSMauro Carvalho Chehab 326cb7a01acSMauro Carvalho Chehab return 0; 327cb7a01acSMauro Carvalho Chehab } 328cb7a01acSMauro Carvalho Chehab 329ebcff5fcSHans Verkuil static int mt9v011_enum_mbus_code(struct v4l2_subdev *sd, 330*0d346d2aSTomi Valkeinen struct v4l2_subdev_state *sd_state, 331ebcff5fcSHans Verkuil struct v4l2_subdev_mbus_code_enum *code) 332cb7a01acSMauro Carvalho Chehab { 333ebcff5fcSHans Verkuil if (code->pad || code->index > 0) 334cb7a01acSMauro Carvalho Chehab return -EINVAL; 335cb7a01acSMauro Carvalho Chehab 336ebcff5fcSHans Verkuil code->code = MEDIA_BUS_FMT_SGRBG8_1X8; 337cb7a01acSMauro Carvalho Chehab return 0; 338cb7a01acSMauro Carvalho Chehab } 339cb7a01acSMauro Carvalho Chehab 340717fd5b4SHans Verkuil static int mt9v011_set_fmt(struct v4l2_subdev *sd, 341*0d346d2aSTomi Valkeinen struct v4l2_subdev_state *sd_state, 342717fd5b4SHans Verkuil struct v4l2_subdev_format *format) 343cb7a01acSMauro Carvalho Chehab { 344717fd5b4SHans Verkuil struct v4l2_mbus_framefmt *fmt = &format->format; 345717fd5b4SHans Verkuil struct mt9v011 *core = to_mt9v011(sd); 346717fd5b4SHans Verkuil 347717fd5b4SHans Verkuil if (format->pad || fmt->code != MEDIA_BUS_FMT_SGRBG8_1X8) 348cb7a01acSMauro Carvalho Chehab return -EINVAL; 349cb7a01acSMauro Carvalho Chehab 350cb7a01acSMauro Carvalho Chehab v4l_bound_align_image(&fmt->width, 48, 639, 1, 351cb7a01acSMauro Carvalho Chehab &fmt->height, 32, 480, 1, 0); 352cb7a01acSMauro Carvalho Chehab fmt->field = V4L2_FIELD_NONE; 353cb7a01acSMauro Carvalho Chehab fmt->colorspace = V4L2_COLORSPACE_SRGB; 354cb7a01acSMauro Carvalho Chehab 355717fd5b4SHans Verkuil if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) { 356717fd5b4SHans Verkuil core->width = fmt->width; 357717fd5b4SHans Verkuil core->height = fmt->height; 358717fd5b4SHans Verkuil 359717fd5b4SHans Verkuil set_res(sd); 360717fd5b4SHans Verkuil } else { 361*0d346d2aSTomi Valkeinen sd_state->pads->try_fmt = *fmt; 362717fd5b4SHans Verkuil } 363717fd5b4SHans Verkuil 364cb7a01acSMauro Carvalho Chehab return 0; 365cb7a01acSMauro Carvalho Chehab } 366cb7a01acSMauro Carvalho Chehab 3674471109eSHans Verkuil static int mt9v011_g_frame_interval(struct v4l2_subdev *sd, 3684471109eSHans Verkuil struct v4l2_subdev_frame_interval *ival) 369cb7a01acSMauro Carvalho Chehab { 370cb7a01acSMauro Carvalho Chehab calc_fps(sd, 3714471109eSHans Verkuil &ival->interval.numerator, 3724471109eSHans Verkuil &ival->interval.denominator); 373cb7a01acSMauro Carvalho Chehab 374cb7a01acSMauro Carvalho Chehab return 0; 375cb7a01acSMauro Carvalho Chehab } 376cb7a01acSMauro Carvalho Chehab 3774471109eSHans Verkuil static int mt9v011_s_frame_interval(struct v4l2_subdev *sd, 3784471109eSHans Verkuil struct v4l2_subdev_frame_interval *ival) 379cb7a01acSMauro Carvalho Chehab { 3804471109eSHans Verkuil struct v4l2_fract *tpf = &ival->interval; 381cb7a01acSMauro Carvalho Chehab u16 speed; 382cb7a01acSMauro Carvalho Chehab 383cb7a01acSMauro Carvalho Chehab speed = calc_speed(sd, tpf->numerator, tpf->denominator); 384cb7a01acSMauro Carvalho Chehab 385cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, R0A_MT9V011_CLK_SPEED, speed); 386cb7a01acSMauro Carvalho Chehab v4l2_dbg(1, debug, sd, "Setting speed to %d\n", speed); 387cb7a01acSMauro Carvalho Chehab 388cb7a01acSMauro Carvalho Chehab /* Recalculate and update fps info */ 389cb7a01acSMauro Carvalho Chehab calc_fps(sd, &tpf->numerator, &tpf->denominator); 390cb7a01acSMauro Carvalho Chehab 391cb7a01acSMauro Carvalho Chehab return 0; 392cb7a01acSMauro Carvalho Chehab } 393cb7a01acSMauro Carvalho Chehab 394cb7a01acSMauro Carvalho Chehab #ifdef CONFIG_VIDEO_ADV_DEBUG 395cb7a01acSMauro Carvalho Chehab static int mt9v011_g_register(struct v4l2_subdev *sd, 396cb7a01acSMauro Carvalho Chehab struct v4l2_dbg_register *reg) 397cb7a01acSMauro Carvalho Chehab { 398cb7a01acSMauro Carvalho Chehab reg->val = mt9v011_read(sd, reg->reg & 0xff); 399cb7a01acSMauro Carvalho Chehab reg->size = 2; 400cb7a01acSMauro Carvalho Chehab 401cb7a01acSMauro Carvalho Chehab return 0; 402cb7a01acSMauro Carvalho Chehab } 403cb7a01acSMauro Carvalho Chehab 404cb7a01acSMauro Carvalho Chehab static int mt9v011_s_register(struct v4l2_subdev *sd, 405977ba3b1SHans Verkuil const struct v4l2_dbg_register *reg) 406cb7a01acSMauro Carvalho Chehab { 407cb7a01acSMauro Carvalho Chehab mt9v011_write(sd, reg->reg & 0xff, reg->val & 0xffff); 408cb7a01acSMauro Carvalho Chehab 409cb7a01acSMauro Carvalho Chehab return 0; 410cb7a01acSMauro Carvalho Chehab } 411cb7a01acSMauro Carvalho Chehab #endif 412cb7a01acSMauro Carvalho Chehab 413ea01a83dSHans Verkuil static int mt9v011_s_ctrl(struct v4l2_ctrl *ctrl) 414ea01a83dSHans Verkuil { 415ea01a83dSHans Verkuil struct mt9v011 *core = 416ea01a83dSHans Verkuil container_of(ctrl->handler, struct mt9v011, ctrls); 417ea01a83dSHans Verkuil struct v4l2_subdev *sd = &core->sd; 418ea01a83dSHans Verkuil 419ea01a83dSHans Verkuil switch (ctrl->id) { 420ea01a83dSHans Verkuil case V4L2_CID_GAIN: 421ea01a83dSHans Verkuil core->global_gain = ctrl->val; 422ea01a83dSHans Verkuil break; 423ea01a83dSHans Verkuil case V4L2_CID_EXPOSURE: 424ea01a83dSHans Verkuil core->exposure = ctrl->val; 425ea01a83dSHans Verkuil break; 426ea01a83dSHans Verkuil case V4L2_CID_RED_BALANCE: 427ea01a83dSHans Verkuil core->red_bal = ctrl->val; 428ea01a83dSHans Verkuil break; 429ea01a83dSHans Verkuil case V4L2_CID_BLUE_BALANCE: 430ea01a83dSHans Verkuil core->blue_bal = ctrl->val; 431ea01a83dSHans Verkuil break; 432ea01a83dSHans Verkuil case V4L2_CID_HFLIP: 433ea01a83dSHans Verkuil core->hflip = ctrl->val; 434ea01a83dSHans Verkuil set_read_mode(sd); 435ea01a83dSHans Verkuil return 0; 436ea01a83dSHans Verkuil case V4L2_CID_VFLIP: 437ea01a83dSHans Verkuil core->vflip = ctrl->val; 438ea01a83dSHans Verkuil set_read_mode(sd); 439ea01a83dSHans Verkuil return 0; 440ea01a83dSHans Verkuil default: 441ea01a83dSHans Verkuil return -EINVAL; 442ea01a83dSHans Verkuil } 443ea01a83dSHans Verkuil 444ea01a83dSHans Verkuil set_balance(sd); 445ea01a83dSHans Verkuil return 0; 446ea01a83dSHans Verkuil } 447ea01a83dSHans Verkuil 448217bdb07SJulia Lawall static const struct v4l2_ctrl_ops mt9v011_ctrl_ops = { 449cb7a01acSMauro Carvalho Chehab .s_ctrl = mt9v011_s_ctrl, 450ea01a83dSHans Verkuil }; 451ea01a83dSHans Verkuil 452ea01a83dSHans Verkuil static const struct v4l2_subdev_core_ops mt9v011_core_ops = { 453cb7a01acSMauro Carvalho Chehab .reset = mt9v011_reset, 454cb7a01acSMauro Carvalho Chehab #ifdef CONFIG_VIDEO_ADV_DEBUG 455cb7a01acSMauro Carvalho Chehab .g_register = mt9v011_g_register, 456cb7a01acSMauro Carvalho Chehab .s_register = mt9v011_s_register, 457cb7a01acSMauro Carvalho Chehab #endif 458cb7a01acSMauro Carvalho Chehab }; 459cb7a01acSMauro Carvalho Chehab 460cb7a01acSMauro Carvalho Chehab static const struct v4l2_subdev_video_ops mt9v011_video_ops = { 4614471109eSHans Verkuil .g_frame_interval = mt9v011_g_frame_interval, 4624471109eSHans Verkuil .s_frame_interval = mt9v011_s_frame_interval, 463cb7a01acSMauro Carvalho Chehab }; 464cb7a01acSMauro Carvalho Chehab 465ebcff5fcSHans Verkuil static const struct v4l2_subdev_pad_ops mt9v011_pad_ops = { 466ebcff5fcSHans Verkuil .enum_mbus_code = mt9v011_enum_mbus_code, 467717fd5b4SHans Verkuil .set_fmt = mt9v011_set_fmt, 468ebcff5fcSHans Verkuil }; 469ebcff5fcSHans Verkuil 470cb7a01acSMauro Carvalho Chehab static const struct v4l2_subdev_ops mt9v011_ops = { 471cb7a01acSMauro Carvalho Chehab .core = &mt9v011_core_ops, 472cb7a01acSMauro Carvalho Chehab .video = &mt9v011_video_ops, 473ebcff5fcSHans Verkuil .pad = &mt9v011_pad_ops, 474cb7a01acSMauro Carvalho Chehab }; 475cb7a01acSMauro Carvalho Chehab 476cb7a01acSMauro Carvalho Chehab 477cb7a01acSMauro Carvalho Chehab /**************************************************************************** 478cb7a01acSMauro Carvalho Chehab I2C Client & Driver 479cb7a01acSMauro Carvalho Chehab ****************************************************************************/ 480cb7a01acSMauro Carvalho Chehab 481cb7a01acSMauro Carvalho Chehab static int mt9v011_probe(struct i2c_client *c, 482cb7a01acSMauro Carvalho Chehab const struct i2c_device_id *id) 483cb7a01acSMauro Carvalho Chehab { 484cb7a01acSMauro Carvalho Chehab u16 version; 485cb7a01acSMauro Carvalho Chehab struct mt9v011 *core; 486cb7a01acSMauro Carvalho Chehab struct v4l2_subdev *sd; 487ac88fce9SMauro Carvalho Chehab #ifdef CONFIG_MEDIA_CONTROLLER 488ac88fce9SMauro Carvalho Chehab int ret; 489ac88fce9SMauro Carvalho Chehab #endif 490cb7a01acSMauro Carvalho Chehab 491cb7a01acSMauro Carvalho Chehab /* Check if the adapter supports the needed features */ 492cb7a01acSMauro Carvalho Chehab if (!i2c_check_functionality(c->adapter, 493cb7a01acSMauro Carvalho Chehab I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) 494cb7a01acSMauro Carvalho Chehab return -EIO; 495cb7a01acSMauro Carvalho Chehab 496c02b211dSLaurent Pinchart core = devm_kzalloc(&c->dev, sizeof(struct mt9v011), GFP_KERNEL); 497cb7a01acSMauro Carvalho Chehab if (!core) 498cb7a01acSMauro Carvalho Chehab return -ENOMEM; 499cb7a01acSMauro Carvalho Chehab 500cb7a01acSMauro Carvalho Chehab sd = &core->sd; 501cb7a01acSMauro Carvalho Chehab v4l2_i2c_subdev_init(sd, c, &mt9v011_ops); 502cb7a01acSMauro Carvalho Chehab 503ac88fce9SMauro Carvalho Chehab #ifdef CONFIG_MEDIA_CONTROLLER 504ac88fce9SMauro Carvalho Chehab core->pad.flags = MEDIA_PAD_FL_SOURCE; 505ac88fce9SMauro Carvalho Chehab sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; 506ac88fce9SMauro Carvalho Chehab 507ac88fce9SMauro Carvalho Chehab ret = media_entity_pads_init(&sd->entity, 1, &core->pad); 508ac88fce9SMauro Carvalho Chehab if (ret < 0) 509ac88fce9SMauro Carvalho Chehab return ret; 510ac88fce9SMauro Carvalho Chehab #endif 511ac88fce9SMauro Carvalho Chehab 512cb7a01acSMauro Carvalho Chehab /* Check if the sensor is really a MT9V011 */ 513cb7a01acSMauro Carvalho Chehab version = mt9v011_read(sd, R00_MT9V011_CHIP_VERSION); 514cb7a01acSMauro Carvalho Chehab if ((version != MT9V011_VERSION) && 515cb7a01acSMauro Carvalho Chehab (version != MT9V011_REV_B_VERSION)) { 516cb7a01acSMauro Carvalho Chehab v4l2_info(sd, "*** unknown micron chip detected (0x%04x).\n", 517cb7a01acSMauro Carvalho Chehab version); 518cb7a01acSMauro Carvalho Chehab return -EINVAL; 519cb7a01acSMauro Carvalho Chehab } 520cb7a01acSMauro Carvalho Chehab 521ea01a83dSHans Verkuil v4l2_ctrl_handler_init(&core->ctrls, 5); 522ea01a83dSHans Verkuil v4l2_ctrl_new_std(&core->ctrls, &mt9v011_ctrl_ops, 523ea01a83dSHans Verkuil V4L2_CID_GAIN, 0, (1 << 12) - 1 - 0x20, 1, 0x20); 524ea01a83dSHans Verkuil v4l2_ctrl_new_std(&core->ctrls, &mt9v011_ctrl_ops, 525ea01a83dSHans Verkuil V4L2_CID_EXPOSURE, 0, 2047, 1, 0x01fc); 526ea01a83dSHans Verkuil v4l2_ctrl_new_std(&core->ctrls, &mt9v011_ctrl_ops, 527ea01a83dSHans Verkuil V4L2_CID_RED_BALANCE, -(1 << 9), (1 << 9) - 1, 1, 0); 528ea01a83dSHans Verkuil v4l2_ctrl_new_std(&core->ctrls, &mt9v011_ctrl_ops, 529ea01a83dSHans Verkuil V4L2_CID_BLUE_BALANCE, -(1 << 9), (1 << 9) - 1, 1, 0); 530ea01a83dSHans Verkuil v4l2_ctrl_new_std(&core->ctrls, &mt9v011_ctrl_ops, 531ea01a83dSHans Verkuil V4L2_CID_HFLIP, 0, 1, 1, 0); 532ea01a83dSHans Verkuil v4l2_ctrl_new_std(&core->ctrls, &mt9v011_ctrl_ops, 533ea01a83dSHans Verkuil V4L2_CID_VFLIP, 0, 1, 1, 0); 534ea01a83dSHans Verkuil 535ea01a83dSHans Verkuil if (core->ctrls.error) { 536ea01a83dSHans Verkuil int ret = core->ctrls.error; 537ea01a83dSHans Verkuil 538ea01a83dSHans Verkuil v4l2_err(sd, "control initialization error %d\n", ret); 539ea01a83dSHans Verkuil v4l2_ctrl_handler_free(&core->ctrls); 540ea01a83dSHans Verkuil return ret; 541ea01a83dSHans Verkuil } 542ea01a83dSHans Verkuil core->sd.ctrl_handler = &core->ctrls; 543ea01a83dSHans Verkuil 544cb7a01acSMauro Carvalho Chehab core->global_gain = 0x0024; 545cb7a01acSMauro Carvalho Chehab core->exposure = 0x01fc; 546cb7a01acSMauro Carvalho Chehab core->width = 640; 547cb7a01acSMauro Carvalho Chehab core->height = 480; 548cb7a01acSMauro Carvalho Chehab core->xtal = 27000000; /* Hz */ 549cb7a01acSMauro Carvalho Chehab 550cb7a01acSMauro Carvalho Chehab if (c->dev.platform_data) { 551cb7a01acSMauro Carvalho Chehab struct mt9v011_platform_data *pdata = c->dev.platform_data; 552cb7a01acSMauro Carvalho Chehab 553cb7a01acSMauro Carvalho Chehab core->xtal = pdata->xtal; 554cb7a01acSMauro Carvalho Chehab v4l2_dbg(1, debug, sd, "xtal set to %d.%03d MHz\n", 555cb7a01acSMauro Carvalho Chehab core->xtal / 1000000, (core->xtal / 1000) % 1000); 556cb7a01acSMauro Carvalho Chehab } 557cb7a01acSMauro Carvalho Chehab 558cb7a01acSMauro Carvalho Chehab v4l_info(c, "chip found @ 0x%02x (%s - chip version 0x%04x)\n", 559cb7a01acSMauro Carvalho Chehab c->addr << 1, c->adapter->name, version); 560cb7a01acSMauro Carvalho Chehab 561cb7a01acSMauro Carvalho Chehab return 0; 562cb7a01acSMauro Carvalho Chehab } 563cb7a01acSMauro Carvalho Chehab 564cb7a01acSMauro Carvalho Chehab static int mt9v011_remove(struct i2c_client *c) 565cb7a01acSMauro Carvalho Chehab { 566cb7a01acSMauro Carvalho Chehab struct v4l2_subdev *sd = i2c_get_clientdata(c); 567ea01a83dSHans Verkuil struct mt9v011 *core = to_mt9v011(sd); 568cb7a01acSMauro Carvalho Chehab 569cb7a01acSMauro Carvalho Chehab v4l2_dbg(1, debug, sd, 570cb7a01acSMauro Carvalho Chehab "mt9v011.c: removing mt9v011 adapter on address 0x%x\n", 571cb7a01acSMauro Carvalho Chehab c->addr << 1); 572cb7a01acSMauro Carvalho Chehab 573cb7a01acSMauro Carvalho Chehab v4l2_device_unregister_subdev(sd); 574ea01a83dSHans Verkuil v4l2_ctrl_handler_free(&core->ctrls); 575c02b211dSLaurent Pinchart 576cb7a01acSMauro Carvalho Chehab return 0; 577cb7a01acSMauro Carvalho Chehab } 578cb7a01acSMauro Carvalho Chehab 579cb7a01acSMauro Carvalho Chehab /* ----------------------------------------------------------------------- */ 580cb7a01acSMauro Carvalho Chehab 581cb7a01acSMauro Carvalho Chehab static const struct i2c_device_id mt9v011_id[] = { 582cb7a01acSMauro Carvalho Chehab { "mt9v011", 0 }, 583cb7a01acSMauro Carvalho Chehab { } 584cb7a01acSMauro Carvalho Chehab }; 585cb7a01acSMauro Carvalho Chehab MODULE_DEVICE_TABLE(i2c, mt9v011_id); 586cb7a01acSMauro Carvalho Chehab 587cb7a01acSMauro Carvalho Chehab static struct i2c_driver mt9v011_driver = { 588cb7a01acSMauro Carvalho Chehab .driver = { 589cb7a01acSMauro Carvalho Chehab .name = "mt9v011", 590cb7a01acSMauro Carvalho Chehab }, 591cb7a01acSMauro Carvalho Chehab .probe = mt9v011_probe, 592cb7a01acSMauro Carvalho Chehab .remove = mt9v011_remove, 593cb7a01acSMauro Carvalho Chehab .id_table = mt9v011_id, 594cb7a01acSMauro Carvalho Chehab }; 595cb7a01acSMauro Carvalho Chehab 596cb7a01acSMauro Carvalho Chehab module_i2c_driver(mt9v011_driver); 597