Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Driver for MT9V022 CMOS Image Sensor from Micron |
| 3 | * |
| 4 | * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | */ |
| 10 | |
| 11 | #include <linux/videodev2.h> |
| 12 | #include <linux/slab.h> |
| 13 | #include <linux/i2c.h> |
| 14 | #include <linux/delay.h> |
| 15 | #include <linux/log2.h> |
| 16 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 17 | #include <media/v4l2-subdev.h> |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 18 | #include <media/v4l2-chip-ident.h> |
| 19 | #include <media/soc_camera.h> |
| 20 | |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 21 | /* |
| 22 | * mt9v022 i2c address 0x48, 0x4c, 0x58, 0x5c |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 23 | * The platform has to define ctruct i2c_board_info objects and link to them |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 24 | * from struct soc_camera_link |
| 25 | */ |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 26 | |
| 27 | static char *sensor_type; |
| 28 | module_param(sensor_type, charp, S_IRUGO); |
Niels de Vos | 61a2d07 | 2008-07-31 00:07:23 -0700 | [diff] [blame] | 29 | MODULE_PARM_DESC(sensor_type, "Sensor type: \"colour\" or \"monochrome\""); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 30 | |
| 31 | /* mt9v022 selected register addresses */ |
| 32 | #define MT9V022_CHIP_VERSION 0x00 |
| 33 | #define MT9V022_COLUMN_START 0x01 |
| 34 | #define MT9V022_ROW_START 0x02 |
| 35 | #define MT9V022_WINDOW_HEIGHT 0x03 |
| 36 | #define MT9V022_WINDOW_WIDTH 0x04 |
| 37 | #define MT9V022_HORIZONTAL_BLANKING 0x05 |
| 38 | #define MT9V022_VERTICAL_BLANKING 0x06 |
| 39 | #define MT9V022_CHIP_CONTROL 0x07 |
| 40 | #define MT9V022_SHUTTER_WIDTH1 0x08 |
| 41 | #define MT9V022_SHUTTER_WIDTH2 0x09 |
| 42 | #define MT9V022_SHUTTER_WIDTH_CTRL 0x0a |
| 43 | #define MT9V022_TOTAL_SHUTTER_WIDTH 0x0b |
| 44 | #define MT9V022_RESET 0x0c |
| 45 | #define MT9V022_READ_MODE 0x0d |
| 46 | #define MT9V022_MONITOR_MODE 0x0e |
| 47 | #define MT9V022_PIXEL_OPERATION_MODE 0x0f |
| 48 | #define MT9V022_LED_OUT_CONTROL 0x1b |
| 49 | #define MT9V022_ADC_MODE_CONTROL 0x1c |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 50 | #define MT9V022_ANALOG_GAIN 0x35 |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 51 | #define MT9V022_BLACK_LEVEL_CALIB_CTRL 0x47 |
| 52 | #define MT9V022_PIXCLK_FV_LV 0x74 |
| 53 | #define MT9V022_DIGITAL_TEST_PATTERN 0x7f |
| 54 | #define MT9V022_AEC_AGC_ENABLE 0xAF |
| 55 | #define MT9V022_MAX_TOTAL_SHUTTER_WIDTH 0xBD |
| 56 | |
| 57 | /* Progressive scan, master, defaults */ |
| 58 | #define MT9V022_CHIP_CONTROL_DEFAULT 0x188 |
| 59 | |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 60 | #define MT9V022_MAX_WIDTH 752 |
| 61 | #define MT9V022_MAX_HEIGHT 480 |
| 62 | #define MT9V022_MIN_WIDTH 48 |
| 63 | #define MT9V022_MIN_HEIGHT 32 |
| 64 | #define MT9V022_COLUMN_SKIP 1 |
| 65 | #define MT9V022_ROW_SKIP 4 |
| 66 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 67 | /* MT9V022 has only one fixed colorspace per pixelcode */ |
| 68 | struct mt9v022_datafmt { |
| 69 | enum v4l2_mbus_pixelcode code; |
| 70 | enum v4l2_colorspace colorspace; |
| 71 | }; |
| 72 | |
| 73 | /* Find a data format by a pixel code in an array */ |
| 74 | static const struct mt9v022_datafmt *mt9v022_find_datafmt( |
| 75 | enum v4l2_mbus_pixelcode code, const struct mt9v022_datafmt *fmt, |
| 76 | int n) |
| 77 | { |
| 78 | int i; |
| 79 | for (i = 0; i < n; i++) |
| 80 | if (fmt[i].code == code) |
| 81 | return fmt + i; |
| 82 | |
| 83 | return NULL; |
| 84 | } |
| 85 | |
| 86 | static const struct mt9v022_datafmt mt9v022_colour_fmts[] = { |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 87 | /* |
| 88 | * Order important: first natively supported, |
| 89 | * second supported with a GPIO extender |
| 90 | */ |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 91 | {V4L2_MBUS_FMT_SBGGR10_1X10, V4L2_COLORSPACE_SRGB}, |
| 92 | {V4L2_MBUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB}, |
Guennadi Liakhovetski | bb55de3 | 2008-04-22 14:45:13 -0300 | [diff] [blame] | 93 | }; |
| 94 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 95 | static const struct mt9v022_datafmt mt9v022_monochrome_fmts[] = { |
Guennadi Liakhovetski | bb55de3 | 2008-04-22 14:45:13 -0300 | [diff] [blame] | 96 | /* Order important - see above */ |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 97 | {V4L2_MBUS_FMT_Y10_1X10, V4L2_COLORSPACE_JPEG}, |
Laurent Pinchart | 07670433 | 2010-09-28 07:01:44 -0300 | [diff] [blame] | 98 | {V4L2_MBUS_FMT_Y8_1X8, V4L2_COLORSPACE_JPEG}, |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 99 | }; |
| 100 | |
| 101 | struct mt9v022 { |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 102 | struct v4l2_subdev subdev; |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 103 | struct v4l2_rect rect; /* Sensor window */ |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 104 | const struct mt9v022_datafmt *fmt; |
| 105 | const struct mt9v022_datafmt *fmts; |
| 106 | int num_fmts; |
Guennadi Liakhovetski | 7fb0fd0 | 2008-05-05 14:12:30 -0300 | [diff] [blame] | 107 | int model; /* V4L2_IDENT_MT9V022* codes from v4l2-chip-ident.h */ |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 108 | u16 chip_control; |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 109 | unsigned short y_skip_top; /* Lines to skip at the top */ |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 110 | }; |
| 111 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 112 | static struct mt9v022 *to_mt9v022(const struct i2c_client *client) |
| 113 | { |
| 114 | return container_of(i2c_get_clientdata(client), struct mt9v022, subdev); |
| 115 | } |
| 116 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 117 | static int reg_read(struct i2c_client *client, const u8 reg) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 118 | { |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 119 | s32 data = i2c_smbus_read_word_data(client, reg); |
| 120 | return data < 0 ? data : swab16(data); |
| 121 | } |
| 122 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 123 | static int reg_write(struct i2c_client *client, const u8 reg, |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 124 | const u16 data) |
| 125 | { |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 126 | return i2c_smbus_write_word_data(client, reg, swab16(data)); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 127 | } |
| 128 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 129 | static int reg_set(struct i2c_client *client, const u8 reg, |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 130 | const u16 data) |
| 131 | { |
| 132 | int ret; |
| 133 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 134 | ret = reg_read(client, reg); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 135 | if (ret < 0) |
| 136 | return ret; |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 137 | return reg_write(client, reg, ret | data); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 138 | } |
| 139 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 140 | static int reg_clear(struct i2c_client *client, const u8 reg, |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 141 | const u16 data) |
| 142 | { |
| 143 | int ret; |
| 144 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 145 | ret = reg_read(client, reg); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 146 | if (ret < 0) |
| 147 | return ret; |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 148 | return reg_write(client, reg, ret & ~data); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 149 | } |
| 150 | |
Guennadi Liakhovetski | a4c56fd | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 151 | static int mt9v022_init(struct i2c_client *client) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 152 | { |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 153 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 154 | int ret; |
| 155 | |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 156 | /* |
| 157 | * Almost the default mode: master, parallel, simultaneous, and an |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 158 | * undocumented bit 0x200, which is present in table 7, but not in 8, |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 159 | * plus snapshot mode to disable scan for now |
| 160 | */ |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 161 | mt9v022->chip_control |= 0x10; |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 162 | ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 163 | if (!ret) |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 164 | ret = reg_write(client, MT9V022_READ_MODE, 0x300); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 165 | |
| 166 | /* All defaults */ |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 167 | if (!ret) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 168 | /* AEC, AGC on */ |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 169 | ret = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x3); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 170 | if (!ret) |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 171 | ret = reg_write(client, MT9V022_ANALOG_GAIN, 16); |
| 172 | if (!ret) |
| 173 | ret = reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH, 480); |
| 174 | if (!ret) |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 175 | ret = reg_write(client, MT9V022_MAX_TOTAL_SHUTTER_WIDTH, 480); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 176 | if (!ret) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 177 | /* default - auto */ |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 178 | ret = reg_clear(client, MT9V022_BLACK_LEVEL_CALIB_CTRL, 1); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 179 | if (!ret) |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 180 | ret = reg_write(client, MT9V022_DIGITAL_TEST_PATTERN, 0); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 181 | |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 182 | return ret; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 183 | } |
| 184 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 185 | static int mt9v022_s_stream(struct v4l2_subdev *sd, int enable) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 186 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 187 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 188 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
Stefan Herbrechtsmeier | 8103466 | 2008-08-14 12:04:11 -0300 | [diff] [blame] | 189 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 190 | if (enable) |
| 191 | /* Switch to master "normal" mode */ |
| 192 | mt9v022->chip_control &= ~0x10; |
| 193 | else |
| 194 | /* Switch to snapshot mode */ |
| 195 | mt9v022->chip_control |= 0x10; |
Stefan Herbrechtsmeier | 8103466 | 2008-08-14 12:04:11 -0300 | [diff] [blame] | 196 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 197 | if (reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control) < 0) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 198 | return -EIO; |
| 199 | return 0; |
| 200 | } |
| 201 | |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 202 | static int mt9v022_set_bus_param(struct soc_camera_device *icd, |
| 203 | unsigned long flags) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 204 | { |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 205 | struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd)); |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 206 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 207 | struct soc_camera_link *icl = to_soc_camera_link(icd); |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 208 | unsigned int width_flag = flags & SOCAM_DATAWIDTH_MASK; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 209 | int ret; |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 210 | u16 pixclk = 0; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 211 | |
| 212 | /* Only one width bit may be set */ |
| 213 | if (!is_power_of_2(width_flag)) |
| 214 | return -EINVAL; |
| 215 | |
Sascha Hauer | e958e27 | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 216 | if (icl->set_bus_param) { |
| 217 | ret = icl->set_bus_param(icl, width_flag); |
| 218 | if (ret) |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 219 | return ret; |
Sascha Hauer | e958e27 | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 220 | } else { |
| 221 | /* |
| 222 | * Without board specific bus width settings we only support the |
| 223 | * sensors native bus width |
| 224 | */ |
| 225 | if (width_flag != SOCAM_DATAWIDTH_10) |
| 226 | return -EINVAL; |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 227 | } |
| 228 | |
Guennadi Liakhovetski | bd73b36 | 2008-12-23 05:54:45 -0300 | [diff] [blame] | 229 | flags = soc_camera_apply_sensor_flags(icl, flags); |
| 230 | |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 231 | if (flags & SOCAM_PCLK_SAMPLE_RISING) |
| 232 | pixclk |= 0x10; |
| 233 | |
| 234 | if (!(flags & SOCAM_HSYNC_ACTIVE_HIGH)) |
| 235 | pixclk |= 0x1; |
| 236 | |
| 237 | if (!(flags & SOCAM_VSYNC_ACTIVE_HIGH)) |
| 238 | pixclk |= 0x2; |
| 239 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 240 | ret = reg_write(client, MT9V022_PIXCLK_FV_LV, pixclk); |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 241 | if (ret < 0) |
| 242 | return ret; |
| 243 | |
| 244 | if (!(flags & SOCAM_MASTER)) |
| 245 | mt9v022->chip_control &= ~0x8; |
| 246 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 247 | ret = reg_write(client, MT9V022_CHIP_CONTROL, mt9v022->chip_control); |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 248 | if (ret < 0) |
| 249 | return ret; |
| 250 | |
Guennadi Liakhovetski | 85f8be6 | 2009-08-25 11:47:00 -0300 | [diff] [blame] | 251 | dev_dbg(&client->dev, "Calculated pixclk 0x%x, chip control 0x%x\n", |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 252 | pixclk, mt9v022->chip_control); |
| 253 | |
| 254 | return 0; |
| 255 | } |
| 256 | |
| 257 | static unsigned long mt9v022_query_bus_param(struct soc_camera_device *icd) |
| 258 | { |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 259 | struct soc_camera_link *icl = to_soc_camera_link(icd); |
Guennadi Liakhovetski | 4a9ce75 | 2010-02-04 11:17:48 +0100 | [diff] [blame] | 260 | unsigned int flags = SOCAM_MASTER | SOCAM_SLAVE | |
| 261 | SOCAM_PCLK_SAMPLE_RISING | SOCAM_PCLK_SAMPLE_FALLING | |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 262 | SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_HSYNC_ACTIVE_LOW | |
| 263 | SOCAM_VSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_LOW | |
Guennadi Liakhovetski | 4a9ce75 | 2010-02-04 11:17:48 +0100 | [diff] [blame] | 264 | SOCAM_DATA_ACTIVE_HIGH; |
| 265 | |
| 266 | if (icl->query_bus_param) |
| 267 | flags |= icl->query_bus_param(icl) & SOCAM_DATAWIDTH_MASK; |
| 268 | else |
| 269 | flags |= SOCAM_DATAWIDTH_10; |
| 270 | |
| 271 | return soc_camera_apply_sensor_flags(icl, flags); |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 272 | } |
| 273 | |
Guennadi Liakhovetski | 08590b9 | 2009-08-25 11:46:54 -0300 | [diff] [blame] | 274 | static int mt9v022_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 275 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 276 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 277 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
| 278 | struct v4l2_rect rect = a->c; |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 279 | int ret; |
| 280 | |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 281 | /* Bayer format - even size lengths */ |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 282 | if (mt9v022->fmts == mt9v022_colour_fmts) { |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 283 | rect.width = ALIGN(rect.width, 2); |
| 284 | rect.height = ALIGN(rect.height, 2); |
| 285 | /* Let the user play with the starting pixel */ |
| 286 | } |
| 287 | |
| 288 | soc_camera_limit_side(&rect.left, &rect.width, |
| 289 | MT9V022_COLUMN_SKIP, MT9V022_MIN_WIDTH, MT9V022_MAX_WIDTH); |
| 290 | |
| 291 | soc_camera_limit_side(&rect.top, &rect.height, |
| 292 | MT9V022_ROW_SKIP, MT9V022_MIN_HEIGHT, MT9V022_MAX_HEIGHT); |
| 293 | |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 294 | /* Like in example app. Contradicts the datasheet though */ |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 295 | ret = reg_read(client, MT9V022_AEC_AGC_ENABLE); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 296 | if (ret >= 0) { |
| 297 | if (ret & 1) /* Autoexposure */ |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 298 | ret = reg_write(client, MT9V022_MAX_TOTAL_SHUTTER_WIDTH, |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 299 | rect.height + mt9v022->y_skip_top + 43); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 300 | else |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 301 | ret = reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH, |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 302 | rect.height + mt9v022->y_skip_top + 43); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 303 | } |
| 304 | /* Setup frame format: defaults apart from width and height */ |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 305 | if (!ret) |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 306 | ret = reg_write(client, MT9V022_COLUMN_START, rect.left); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 307 | if (!ret) |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 308 | ret = reg_write(client, MT9V022_ROW_START, rect.top); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 309 | if (!ret) |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 310 | /* |
| 311 | * Default 94, Phytec driver says: |
| 312 | * "width + horizontal blank >= 660" |
| 313 | */ |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 314 | ret = reg_write(client, MT9V022_HORIZONTAL_BLANKING, |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 315 | rect.width > 660 - 43 ? 43 : |
| 316 | 660 - rect.width); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 317 | if (!ret) |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 318 | ret = reg_write(client, MT9V022_VERTICAL_BLANKING, 45); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 319 | if (!ret) |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 320 | ret = reg_write(client, MT9V022_WINDOW_WIDTH, rect.width); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 321 | if (!ret) |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 322 | ret = reg_write(client, MT9V022_WINDOW_HEIGHT, |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 323 | rect.height + mt9v022->y_skip_top); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 324 | |
| 325 | if (ret < 0) |
| 326 | return ret; |
| 327 | |
Márton Németh | e26b314 | 2010-02-24 17:13:29 -0300 | [diff] [blame] | 328 | dev_dbg(&client->dev, "Frame %dx%d pixel\n", rect.width, rect.height); |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 329 | |
| 330 | mt9v022->rect = rect; |
| 331 | |
| 332 | return 0; |
| 333 | } |
| 334 | |
| 335 | static int mt9v022_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) |
| 336 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 337 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 338 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
| 339 | |
| 340 | a->c = mt9v022->rect; |
| 341 | a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 342 | |
| 343 | return 0; |
| 344 | } |
| 345 | |
| 346 | static int mt9v022_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a) |
| 347 | { |
| 348 | a->bounds.left = MT9V022_COLUMN_SKIP; |
| 349 | a->bounds.top = MT9V022_ROW_SKIP; |
| 350 | a->bounds.width = MT9V022_MAX_WIDTH; |
| 351 | a->bounds.height = MT9V022_MAX_HEIGHT; |
| 352 | a->defrect = a->bounds; |
| 353 | a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 354 | a->pixelaspect.numerator = 1; |
| 355 | a->pixelaspect.denominator = 1; |
| 356 | |
| 357 | return 0; |
| 358 | } |
| 359 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 360 | static int mt9v022_g_fmt(struct v4l2_subdev *sd, |
| 361 | struct v4l2_mbus_framefmt *mf) |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 362 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 363 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 364 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 365 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 366 | mf->width = mt9v022->rect.width; |
| 367 | mf->height = mt9v022->rect.height; |
| 368 | mf->code = mt9v022->fmt->code; |
| 369 | mf->colorspace = mt9v022->fmt->colorspace; |
| 370 | mf->field = V4L2_FIELD_NONE; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 371 | |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 372 | return 0; |
| 373 | } |
| 374 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 375 | static int mt9v022_s_fmt(struct v4l2_subdev *sd, |
| 376 | struct v4l2_mbus_framefmt *mf) |
Guennadi Liakhovetski | 09e231b | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 377 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 378 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 379 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
Guennadi Liakhovetski | 08590b9 | 2009-08-25 11:46:54 -0300 | [diff] [blame] | 380 | struct v4l2_crop a = { |
| 381 | .c = { |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 382 | .left = mt9v022->rect.left, |
| 383 | .top = mt9v022->rect.top, |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 384 | .width = mf->width, |
| 385 | .height = mf->height, |
Guennadi Liakhovetski | 08590b9 | 2009-08-25 11:46:54 -0300 | [diff] [blame] | 386 | }, |
Guennadi Liakhovetski | 09e231b | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 387 | }; |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 388 | int ret; |
Guennadi Liakhovetski | 09e231b | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 389 | |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 390 | /* |
| 391 | * The caller provides a supported format, as verified per call to |
| 392 | * icd->try_fmt(), datawidth is from our supported format list |
| 393 | */ |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 394 | switch (mf->code) { |
Laurent Pinchart | 07670433 | 2010-09-28 07:01:44 -0300 | [diff] [blame] | 395 | case V4L2_MBUS_FMT_Y8_1X8: |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 396 | case V4L2_MBUS_FMT_Y10_1X10: |
Guennadi Liakhovetski | 09e231b | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 397 | if (mt9v022->model != V4L2_IDENT_MT9V022IX7ATM) |
| 398 | return -EINVAL; |
| 399 | break; |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 400 | case V4L2_MBUS_FMT_SBGGR8_1X8: |
| 401 | case V4L2_MBUS_FMT_SBGGR10_1X10: |
Guennadi Liakhovetski | 09e231b | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 402 | if (mt9v022->model != V4L2_IDENT_MT9V022IX7ATC) |
| 403 | return -EINVAL; |
| 404 | break; |
Guennadi Liakhovetski | 09e231b | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 405 | default: |
| 406 | return -EINVAL; |
| 407 | } |
| 408 | |
| 409 | /* No support for scaling on this camera, just crop. */ |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 410 | ret = mt9v022_s_crop(sd, &a); |
| 411 | if (!ret) { |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 412 | mf->width = mt9v022->rect.width; |
| 413 | mf->height = mt9v022->rect.height; |
| 414 | mt9v022->fmt = mt9v022_find_datafmt(mf->code, |
| 415 | mt9v022->fmts, mt9v022->num_fmts); |
| 416 | mf->colorspace = mt9v022->fmt->colorspace; |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 417 | } |
| 418 | |
| 419 | return ret; |
Guennadi Liakhovetski | 09e231b | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 420 | } |
| 421 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 422 | static int mt9v022_try_fmt(struct v4l2_subdev *sd, |
| 423 | struct v4l2_mbus_framefmt *mf) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 424 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 425 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 426 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 427 | const struct mt9v022_datafmt *fmt; |
| 428 | int align = mf->code == V4L2_MBUS_FMT_SBGGR8_1X8 || |
| 429 | mf->code == V4L2_MBUS_FMT_SBGGR10_1X10; |
Guennadi Liakhovetski | 64f5905 | 2008-12-18 11:51:55 -0300 | [diff] [blame] | 430 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 431 | v4l_bound_align_image(&mf->width, MT9V022_MIN_WIDTH, |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 432 | MT9V022_MAX_WIDTH, align, |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 433 | &mf->height, MT9V022_MIN_HEIGHT + mt9v022->y_skip_top, |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 434 | MT9V022_MAX_HEIGHT + mt9v022->y_skip_top, align, 0); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 435 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 436 | fmt = mt9v022_find_datafmt(mf->code, mt9v022->fmts, |
| 437 | mt9v022->num_fmts); |
| 438 | if (!fmt) { |
| 439 | fmt = mt9v022->fmt; |
| 440 | mf->code = fmt->code; |
| 441 | } |
| 442 | |
| 443 | mf->colorspace = fmt->colorspace; |
| 444 | |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 445 | return 0; |
| 446 | } |
| 447 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 448 | static int mt9v022_g_chip_ident(struct v4l2_subdev *sd, |
| 449 | struct v4l2_dbg_chip_ident *id) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 450 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 451 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 452 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 453 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 454 | if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 455 | return -EINVAL; |
| 456 | |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 457 | if (id->match.addr != client->addr) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 458 | return -ENODEV; |
| 459 | |
| 460 | id->ident = mt9v022->model; |
| 461 | id->revision = 0; |
| 462 | |
| 463 | return 0; |
| 464 | } |
| 465 | |
| 466 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 467 | static int mt9v022_g_register(struct v4l2_subdev *sd, |
| 468 | struct v4l2_dbg_register *reg) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 469 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 470 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 471 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 472 | if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 473 | return -EINVAL; |
| 474 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 475 | if (reg->match.addr != client->addr) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 476 | return -ENODEV; |
| 477 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 478 | reg->size = 2; |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 479 | reg->val = reg_read(client, reg->reg); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 480 | |
| 481 | if (reg->val > 0xffff) |
| 482 | return -EIO; |
| 483 | |
| 484 | return 0; |
| 485 | } |
| 486 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 487 | static int mt9v022_s_register(struct v4l2_subdev *sd, |
| 488 | struct v4l2_dbg_register *reg) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 489 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 490 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 491 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 492 | if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 493 | return -EINVAL; |
| 494 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 495 | if (reg->match.addr != client->addr) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 496 | return -ENODEV; |
| 497 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 498 | if (reg_write(client, reg->reg, reg->val) < 0) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 499 | return -EIO; |
| 500 | |
| 501 | return 0; |
| 502 | } |
| 503 | #endif |
| 504 | |
Adrian Bunk | 4407a46 | 2008-04-28 17:13:51 -0300 | [diff] [blame] | 505 | static const struct v4l2_queryctrl mt9v022_controls[] = { |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 506 | { |
| 507 | .id = V4L2_CID_VFLIP, |
| 508 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 509 | .name = "Flip Vertically", |
| 510 | .minimum = 0, |
| 511 | .maximum = 1, |
| 512 | .step = 1, |
| 513 | .default_value = 0, |
| 514 | }, { |
| 515 | .id = V4L2_CID_HFLIP, |
| 516 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 517 | .name = "Flip Horizontally", |
| 518 | .minimum = 0, |
| 519 | .maximum = 1, |
| 520 | .step = 1, |
| 521 | .default_value = 0, |
| 522 | }, { |
| 523 | .id = V4L2_CID_GAIN, |
| 524 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 525 | .name = "Analog Gain", |
| 526 | .minimum = 64, |
| 527 | .maximum = 127, |
| 528 | .step = 1, |
| 529 | .default_value = 64, |
| 530 | .flags = V4L2_CTRL_FLAG_SLIDER, |
| 531 | }, { |
| 532 | .id = V4L2_CID_EXPOSURE, |
| 533 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 534 | .name = "Exposure", |
| 535 | .minimum = 1, |
| 536 | .maximum = 255, |
| 537 | .step = 1, |
| 538 | .default_value = 255, |
| 539 | .flags = V4L2_CTRL_FLAG_SLIDER, |
| 540 | }, { |
| 541 | .id = V4L2_CID_AUTOGAIN, |
| 542 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 543 | .name = "Automatic Gain", |
| 544 | .minimum = 0, |
| 545 | .maximum = 1, |
| 546 | .step = 1, |
| 547 | .default_value = 1, |
| 548 | }, { |
| 549 | .id = V4L2_CID_EXPOSURE_AUTO, |
| 550 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 551 | .name = "Automatic Exposure", |
| 552 | .minimum = 0, |
| 553 | .maximum = 1, |
| 554 | .step = 1, |
| 555 | .default_value = 1, |
| 556 | } |
| 557 | }; |
| 558 | |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 559 | static struct soc_camera_ops mt9v022_ops = { |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 560 | .set_bus_param = mt9v022_set_bus_param, |
| 561 | .query_bus_param = mt9v022_query_bus_param, |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 562 | .controls = mt9v022_controls, |
| 563 | .num_controls = ARRAY_SIZE(mt9v022_controls), |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 564 | }; |
| 565 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 566 | static int mt9v022_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 567 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 568 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 569 | const struct v4l2_queryctrl *qctrl; |
| 570 | unsigned long range; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 571 | int data; |
| 572 | |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 573 | qctrl = soc_camera_find_qctrl(&mt9v022_ops, ctrl->id); |
| 574 | |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 575 | switch (ctrl->id) { |
| 576 | case V4L2_CID_VFLIP: |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 577 | data = reg_read(client, MT9V022_READ_MODE); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 578 | if (data < 0) |
| 579 | return -EIO; |
| 580 | ctrl->value = !!(data & 0x10); |
| 581 | break; |
| 582 | case V4L2_CID_HFLIP: |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 583 | data = reg_read(client, MT9V022_READ_MODE); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 584 | if (data < 0) |
| 585 | return -EIO; |
| 586 | ctrl->value = !!(data & 0x20); |
| 587 | break; |
| 588 | case V4L2_CID_EXPOSURE_AUTO: |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 589 | data = reg_read(client, MT9V022_AEC_AGC_ENABLE); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 590 | if (data < 0) |
| 591 | return -EIO; |
| 592 | ctrl->value = !!(data & 0x1); |
| 593 | break; |
| 594 | case V4L2_CID_AUTOGAIN: |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 595 | data = reg_read(client, MT9V022_AEC_AGC_ENABLE); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 596 | if (data < 0) |
| 597 | return -EIO; |
| 598 | ctrl->value = !!(data & 0x2); |
| 599 | break; |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 600 | case V4L2_CID_GAIN: |
| 601 | data = reg_read(client, MT9V022_ANALOG_GAIN); |
| 602 | if (data < 0) |
| 603 | return -EIO; |
| 604 | |
| 605 | range = qctrl->maximum - qctrl->minimum; |
| 606 | ctrl->value = ((data - 16) * range + 24) / 48 + qctrl->minimum; |
| 607 | |
| 608 | break; |
| 609 | case V4L2_CID_EXPOSURE: |
| 610 | data = reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH); |
| 611 | if (data < 0) |
| 612 | return -EIO; |
| 613 | |
| 614 | range = qctrl->maximum - qctrl->minimum; |
| 615 | ctrl->value = ((data - 1) * range + 239) / 479 + qctrl->minimum; |
| 616 | |
| 617 | break; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 618 | } |
| 619 | return 0; |
| 620 | } |
| 621 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 622 | static int mt9v022_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 623 | { |
| 624 | int data; |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 625 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 626 | const struct v4l2_queryctrl *qctrl; |
| 627 | |
| 628 | qctrl = soc_camera_find_qctrl(&mt9v022_ops, ctrl->id); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 629 | if (!qctrl) |
| 630 | return -EINVAL; |
| 631 | |
| 632 | switch (ctrl->id) { |
| 633 | case V4L2_CID_VFLIP: |
| 634 | if (ctrl->value) |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 635 | data = reg_set(client, MT9V022_READ_MODE, 0x10); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 636 | else |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 637 | data = reg_clear(client, MT9V022_READ_MODE, 0x10); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 638 | if (data < 0) |
| 639 | return -EIO; |
| 640 | break; |
| 641 | case V4L2_CID_HFLIP: |
| 642 | if (ctrl->value) |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 643 | data = reg_set(client, MT9V022_READ_MODE, 0x20); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 644 | else |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 645 | data = reg_clear(client, MT9V022_READ_MODE, 0x20); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 646 | if (data < 0) |
| 647 | return -EIO; |
| 648 | break; |
| 649 | case V4L2_CID_GAIN: |
| 650 | /* mt9v022 has minimum == default */ |
| 651 | if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum) |
| 652 | return -EINVAL; |
| 653 | else { |
| 654 | unsigned long range = qctrl->maximum - qctrl->minimum; |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 655 | /* Valid values 16 to 64, 32 to 64 must be even. */ |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 656 | unsigned long gain = ((ctrl->value - qctrl->minimum) * |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 657 | 48 + range / 2) / range + 16; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 658 | if (gain >= 32) |
| 659 | gain &= ~1; |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 660 | /* |
| 661 | * The user wants to set gain manually, hope, she |
| 662 | * knows, what she's doing... Switch AGC off. |
| 663 | */ |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 664 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 665 | if (reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x2) < 0) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 666 | return -EIO; |
| 667 | |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 668 | dev_dbg(&client->dev, "Setting gain from %d to %lu\n", |
| 669 | reg_read(client, MT9V022_ANALOG_GAIN), gain); |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 670 | if (reg_write(client, MT9V022_ANALOG_GAIN, gain) < 0) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 671 | return -EIO; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 672 | } |
| 673 | break; |
| 674 | case V4L2_CID_EXPOSURE: |
| 675 | /* mt9v022 has maximum == default */ |
| 676 | if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum) |
| 677 | return -EINVAL; |
| 678 | else { |
| 679 | unsigned long range = qctrl->maximum - qctrl->minimum; |
| 680 | unsigned long shutter = ((ctrl->value - qctrl->minimum) * |
| 681 | 479 + range / 2) / range + 1; |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 682 | /* |
| 683 | * The user wants to set shutter width manually, hope, |
| 684 | * she knows, what she's doing... Switch AEC off. |
| 685 | */ |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 686 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 687 | if (reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1) < 0) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 688 | return -EIO; |
| 689 | |
Guennadi Liakhovetski | 85f8be6 | 2009-08-25 11:47:00 -0300 | [diff] [blame] | 690 | dev_dbg(&client->dev, "Shutter width from %d to %lu\n", |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 691 | reg_read(client, MT9V022_TOTAL_SHUTTER_WIDTH), |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 692 | shutter); |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 693 | if (reg_write(client, MT9V022_TOTAL_SHUTTER_WIDTH, |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 694 | shutter) < 0) |
| 695 | return -EIO; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 696 | } |
| 697 | break; |
| 698 | case V4L2_CID_AUTOGAIN: |
| 699 | if (ctrl->value) |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 700 | data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x2); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 701 | else |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 702 | data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x2); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 703 | if (data < 0) |
| 704 | return -EIO; |
| 705 | break; |
| 706 | case V4L2_CID_EXPOSURE_AUTO: |
| 707 | if (ctrl->value) |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 708 | data = reg_set(client, MT9V022_AEC_AGC_ENABLE, 0x1); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 709 | else |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 710 | data = reg_clear(client, MT9V022_AEC_AGC_ENABLE, 0x1); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 711 | if (data < 0) |
| 712 | return -EIO; |
| 713 | break; |
| 714 | } |
| 715 | return 0; |
| 716 | } |
| 717 | |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 718 | /* |
| 719 | * Interface active, can use i2c. If it fails, it can indeed mean, that |
| 720 | * this wasn't our capture interface, so, we wait for the right one |
| 721 | */ |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 722 | static int mt9v022_video_probe(struct soc_camera_device *icd, |
| 723 | struct i2c_client *client) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 724 | { |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 725 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 726 | struct soc_camera_link *icl = to_soc_camera_link(icd); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 727 | s32 data; |
| 728 | int ret; |
Sascha Hauer | e958e27 | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 729 | unsigned long flags; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 730 | |
| 731 | if (!icd->dev.parent || |
| 732 | to_soc_camera_host(icd->dev.parent)->nr != icd->iface) |
| 733 | return -ENODEV; |
| 734 | |
| 735 | /* Read out the chip version register */ |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 736 | data = reg_read(client, MT9V022_CHIP_VERSION); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 737 | |
| 738 | /* must be 0x1311 or 0x1313 */ |
| 739 | if (data != 0x1311 && data != 0x1313) { |
| 740 | ret = -ENODEV; |
Guennadi Liakhovetski | 85f8be6 | 2009-08-25 11:47:00 -0300 | [diff] [blame] | 741 | dev_info(&client->dev, "No MT9V022 found, ID register 0x%x\n", |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 742 | data); |
| 743 | goto ei2c; |
| 744 | } |
| 745 | |
| 746 | /* Soft reset */ |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 747 | ret = reg_write(client, MT9V022_RESET, 1); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 748 | if (ret < 0) |
| 749 | goto ei2c; |
| 750 | /* 15 clock cycles */ |
| 751 | udelay(200); |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 752 | if (reg_read(client, MT9V022_RESET)) { |
Guennadi Liakhovetski | 85f8be6 | 2009-08-25 11:47:00 -0300 | [diff] [blame] | 753 | dev_err(&client->dev, "Resetting MT9V022 failed!\n"); |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 754 | if (ret > 0) |
| 755 | ret = -EIO; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 756 | goto ei2c; |
| 757 | } |
| 758 | |
| 759 | /* Set monochrome or colour sensor type */ |
| 760 | if (sensor_type && (!strcmp("colour", sensor_type) || |
| 761 | !strcmp("color", sensor_type))) { |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 762 | ret = reg_write(client, MT9V022_PIXEL_OPERATION_MODE, 4 | 0x11); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 763 | mt9v022->model = V4L2_IDENT_MT9V022IX7ATC; |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 764 | mt9v022->fmts = mt9v022_colour_fmts; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 765 | } else { |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 766 | ret = reg_write(client, MT9V022_PIXEL_OPERATION_MODE, 0x11); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 767 | mt9v022->model = V4L2_IDENT_MT9V022IX7ATM; |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 768 | mt9v022->fmts = mt9v022_monochrome_fmts; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 769 | } |
| 770 | |
Sascha Hauer | e958e27 | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 771 | if (ret < 0) |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 772 | goto ei2c; |
Sascha Hauer | e958e27 | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 773 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 774 | mt9v022->num_fmts = 0; |
Sascha Hauer | e958e27 | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 775 | |
| 776 | /* |
| 777 | * This is a 10bit sensor, so by default we only allow 10bit. |
| 778 | * The platform may support different bus widths due to |
| 779 | * different routing of the data lines. |
| 780 | */ |
| 781 | if (icl->query_bus_param) |
| 782 | flags = icl->query_bus_param(icl); |
| 783 | else |
| 784 | flags = SOCAM_DATAWIDTH_10; |
| 785 | |
| 786 | if (flags & SOCAM_DATAWIDTH_10) |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 787 | mt9v022->num_fmts++; |
Sascha Hauer | e958e27 | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 788 | else |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 789 | mt9v022->fmts++; |
Sascha Hauer | e958e27 | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 790 | |
| 791 | if (flags & SOCAM_DATAWIDTH_8) |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 792 | mt9v022->num_fmts++; |
Sascha Hauer | e958e27 | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 793 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 794 | mt9v022->fmt = &mt9v022->fmts[0]; |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 795 | |
Guennadi Liakhovetski | 85f8be6 | 2009-08-25 11:47:00 -0300 | [diff] [blame] | 796 | dev_info(&client->dev, "Detected a MT9V022 chip ID %x, %s sensor\n", |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 797 | data, mt9v022->model == V4L2_IDENT_MT9V022IX7ATM ? |
| 798 | "monochrome" : "colour"); |
| 799 | |
Guennadi Liakhovetski | a4c56fd | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 800 | ret = mt9v022_init(client); |
| 801 | if (ret < 0) |
| 802 | dev_err(&client->dev, "Failed to initialise the camera\n"); |
| 803 | |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 804 | ei2c: |
| 805 | return ret; |
| 806 | } |
| 807 | |
| 808 | static void mt9v022_video_remove(struct soc_camera_device *icd) |
| 809 | { |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 810 | struct soc_camera_link *icl = to_soc_camera_link(icd); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 811 | |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 812 | dev_dbg(&icd->dev, "Video removed: %p, %p\n", |
Guennadi Liakhovetski | a85bdac | 2008-12-18 12:54:33 -0300 | [diff] [blame] | 813 | icd->dev.parent, icd->vdev); |
Guennadi Liakhovetski | 594bb46 | 2009-04-24 12:53:51 -0300 | [diff] [blame] | 814 | if (icl->free_bus) |
| 815 | icl->free_bus(icl); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 816 | } |
| 817 | |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 818 | static int mt9v022_g_skip_top_lines(struct v4l2_subdev *sd, u32 *lines) |
| 819 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 820 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 821 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
| 822 | |
| 823 | *lines = mt9v022->y_skip_top; |
| 824 | |
| 825 | return 0; |
| 826 | } |
| 827 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 828 | static struct v4l2_subdev_core_ops mt9v022_subdev_core_ops = { |
| 829 | .g_ctrl = mt9v022_g_ctrl, |
| 830 | .s_ctrl = mt9v022_s_ctrl, |
| 831 | .g_chip_ident = mt9v022_g_chip_ident, |
| 832 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
| 833 | .g_register = mt9v022_g_register, |
| 834 | .s_register = mt9v022_s_register, |
| 835 | #endif |
| 836 | }; |
| 837 | |
Hans Verkuil | 3805f20 | 2010-05-08 17:55:00 -0300 | [diff] [blame] | 838 | static int mt9v022_enum_fmt(struct v4l2_subdev *sd, unsigned int index, |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 839 | enum v4l2_mbus_pixelcode *code) |
| 840 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 841 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 842 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
| 843 | |
Hans Verkuil | 3805f20 | 2010-05-08 17:55:00 -0300 | [diff] [blame] | 844 | if (index >= mt9v022->num_fmts) |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 845 | return -EINVAL; |
| 846 | |
| 847 | *code = mt9v022->fmts[index].code; |
| 848 | return 0; |
| 849 | } |
| 850 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 851 | static struct v4l2_subdev_video_ops mt9v022_subdev_video_ops = { |
| 852 | .s_stream = mt9v022_s_stream, |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 853 | .s_mbus_fmt = mt9v022_s_fmt, |
| 854 | .g_mbus_fmt = mt9v022_g_fmt, |
| 855 | .try_mbus_fmt = mt9v022_try_fmt, |
Guennadi Liakhovetski | 08590b9 | 2009-08-25 11:46:54 -0300 | [diff] [blame] | 856 | .s_crop = mt9v022_s_crop, |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 857 | .g_crop = mt9v022_g_crop, |
| 858 | .cropcap = mt9v022_cropcap, |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 859 | .enum_mbus_fmt = mt9v022_enum_fmt, |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 860 | }; |
| 861 | |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 862 | static struct v4l2_subdev_sensor_ops mt9v022_subdev_sensor_ops = { |
| 863 | .g_skip_top_lines = mt9v022_g_skip_top_lines, |
| 864 | }; |
| 865 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 866 | static struct v4l2_subdev_ops mt9v022_subdev_ops = { |
| 867 | .core = &mt9v022_subdev_core_ops, |
| 868 | .video = &mt9v022_subdev_video_ops, |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 869 | .sensor = &mt9v022_subdev_sensor_ops, |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 870 | }; |
| 871 | |
Jean Delvare | d2653e9 | 2008-04-29 23:11:39 +0200 | [diff] [blame] | 872 | static int mt9v022_probe(struct i2c_client *client, |
| 873 | const struct i2c_device_id *did) |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 874 | { |
| 875 | struct mt9v022 *mt9v022; |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 876 | struct soc_camera_device *icd = client->dev.platform_data; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 877 | struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 878 | struct soc_camera_link *icl; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 879 | int ret; |
| 880 | |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 881 | if (!icd) { |
| 882 | dev_err(&client->dev, "MT9V022: missing soc-camera data!\n"); |
| 883 | return -EINVAL; |
| 884 | } |
| 885 | |
| 886 | icl = to_soc_camera_link(icd); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 887 | if (!icl) { |
| 888 | dev_err(&client->dev, "MT9V022 driver needs platform data\n"); |
| 889 | return -EINVAL; |
| 890 | } |
| 891 | |
| 892 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) { |
| 893 | dev_warn(&adapter->dev, |
| 894 | "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n"); |
| 895 | return -EIO; |
| 896 | } |
| 897 | |
| 898 | mt9v022 = kzalloc(sizeof(struct mt9v022), GFP_KERNEL); |
| 899 | if (!mt9v022) |
| 900 | return -ENOMEM; |
| 901 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 902 | v4l2_i2c_subdev_init(&mt9v022->subdev, client, &mt9v022_subdev_ops); |
| 903 | |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 904 | mt9v022->chip_control = MT9V022_CHIP_CONTROL_DEFAULT; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 905 | |
Guennadi Liakhovetski | a0705b0 | 2009-08-25 11:46:17 -0300 | [diff] [blame] | 906 | icd->ops = &mt9v022_ops; |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 907 | /* |
| 908 | * MT9V022 _really_ corrupts the first read out line. |
| 909 | * TODO: verify on i.MX31 |
| 910 | */ |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 911 | mt9v022->y_skip_top = 1; |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 912 | mt9v022->rect.left = MT9V022_COLUMN_SKIP; |
| 913 | mt9v022->rect.top = MT9V022_ROW_SKIP; |
| 914 | mt9v022->rect.width = MT9V022_MAX_WIDTH; |
| 915 | mt9v022->rect.height = MT9V022_MAX_HEIGHT; |
| 916 | |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 917 | ret = mt9v022_video_probe(icd, client); |
| 918 | if (ret) { |
| 919 | icd->ops = NULL; |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 920 | kfree(mt9v022); |
| 921 | } |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 922 | |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 923 | return ret; |
| 924 | } |
| 925 | |
| 926 | static int mt9v022_remove(struct i2c_client *client) |
| 927 | { |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 928 | struct mt9v022 *mt9v022 = to_mt9v022(client); |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 929 | struct soc_camera_device *icd = client->dev.platform_data; |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 930 | |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 931 | icd->ops = NULL; |
| 932 | mt9v022_video_remove(icd); |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 933 | kfree(mt9v022); |
| 934 | |
| 935 | return 0; |
| 936 | } |
Jean Delvare | 3760f73 | 2008-04-29 23:11:40 +0200 | [diff] [blame] | 937 | static const struct i2c_device_id mt9v022_id[] = { |
| 938 | { "mt9v022", 0 }, |
| 939 | { } |
| 940 | }; |
| 941 | MODULE_DEVICE_TABLE(i2c, mt9v022_id); |
| 942 | |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 943 | static struct i2c_driver mt9v022_i2c_driver = { |
| 944 | .driver = { |
| 945 | .name = "mt9v022", |
| 946 | }, |
| 947 | .probe = mt9v022_probe, |
| 948 | .remove = mt9v022_remove, |
Jean Delvare | 3760f73 | 2008-04-29 23:11:40 +0200 | [diff] [blame] | 949 | .id_table = mt9v022_id, |
Guennadi Liakhovetski | 7397bfbe | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 950 | }; |
| 951 | |
| 952 | static int __init mt9v022_mod_init(void) |
| 953 | { |
| 954 | return i2c_add_driver(&mt9v022_i2c_driver); |
| 955 | } |
| 956 | |
| 957 | static void __exit mt9v022_mod_exit(void) |
| 958 | { |
| 959 | i2c_del_driver(&mt9v022_i2c_driver); |
| 960 | } |
| 961 | |
| 962 | module_init(mt9v022_mod_init); |
| 963 | module_exit(mt9v022_mod_exit); |
| 964 | |
| 965 | MODULE_DESCRIPTION("Micron MT9V022 Camera driver"); |
| 966 | MODULE_AUTHOR("Guennadi Liakhovetski <kernel@pengutronix.de>"); |
| 967 | MODULE_LICENSE("GPL"); |