Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 1 | /* |
| 2 | * Driver for MT9M001 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/log2.h> |
| 15 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 16 | #include <media/v4l2-subdev.h> |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 17 | #include <media/v4l2-chip-ident.h> |
| 18 | #include <media/soc_camera.h> |
| 19 | |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 20 | /* |
| 21 | * mt9m001 i2c address 0x5d |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 22 | * 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] | 23 | * from struct soc_camera_link |
| 24 | */ |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 25 | |
| 26 | /* mt9m001 selected register addresses */ |
| 27 | #define MT9M001_CHIP_VERSION 0x00 |
| 28 | #define MT9M001_ROW_START 0x01 |
| 29 | #define MT9M001_COLUMN_START 0x02 |
| 30 | #define MT9M001_WINDOW_HEIGHT 0x03 |
| 31 | #define MT9M001_WINDOW_WIDTH 0x04 |
| 32 | #define MT9M001_HORIZONTAL_BLANKING 0x05 |
| 33 | #define MT9M001_VERTICAL_BLANKING 0x06 |
| 34 | #define MT9M001_OUTPUT_CONTROL 0x07 |
| 35 | #define MT9M001_SHUTTER_WIDTH 0x09 |
| 36 | #define MT9M001_FRAME_RESTART 0x0b |
| 37 | #define MT9M001_SHUTTER_DELAY 0x0c |
| 38 | #define MT9M001_RESET 0x0d |
| 39 | #define MT9M001_READ_OPTIONS1 0x1e |
| 40 | #define MT9M001_READ_OPTIONS2 0x20 |
| 41 | #define MT9M001_GLOBAL_GAIN 0x35 |
| 42 | #define MT9M001_CHIP_ENABLE 0xF1 |
| 43 | |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 44 | #define MT9M001_MAX_WIDTH 1280 |
| 45 | #define MT9M001_MAX_HEIGHT 1024 |
| 46 | #define MT9M001_MIN_WIDTH 48 |
| 47 | #define MT9M001_MIN_HEIGHT 32 |
| 48 | #define MT9M001_COLUMN_SKIP 20 |
| 49 | #define MT9M001_ROW_SKIP 12 |
| 50 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 51 | /* MT9M001 has only one fixed colorspace per pixelcode */ |
| 52 | struct mt9m001_datafmt { |
| 53 | enum v4l2_mbus_pixelcode code; |
| 54 | enum v4l2_colorspace colorspace; |
| 55 | }; |
| 56 | |
| 57 | /* Find a data format by a pixel code in an array */ |
| 58 | static const struct mt9m001_datafmt *mt9m001_find_datafmt( |
| 59 | enum v4l2_mbus_pixelcode code, const struct mt9m001_datafmt *fmt, |
| 60 | int n) |
| 61 | { |
| 62 | int i; |
| 63 | for (i = 0; i < n; i++) |
| 64 | if (fmt[i].code == code) |
| 65 | return fmt + i; |
| 66 | |
| 67 | return NULL; |
| 68 | } |
| 69 | |
| 70 | static const struct mt9m001_datafmt mt9m001_colour_fmts[] = { |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 71 | /* |
| 72 | * Order important: first natively supported, |
| 73 | * second supported with a GPIO extender |
| 74 | */ |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 75 | {V4L2_MBUS_FMT_SBGGR10_1X10, V4L2_COLORSPACE_SRGB}, |
| 76 | {V4L2_MBUS_FMT_SBGGR8_1X8, V4L2_COLORSPACE_SRGB}, |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 77 | }; |
| 78 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 79 | static const struct mt9m001_datafmt mt9m001_monochrome_fmts[] = { |
Guennadi Liakhovetski | bb55de3 | 2008-04-22 14:45:13 -0300 | [diff] [blame] | 80 | /* Order important - see above */ |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 81 | {V4L2_MBUS_FMT_Y10_1X10, V4L2_COLORSPACE_JPEG}, |
Laurent Pinchart | 07670433 | 2010-09-28 07:01:44 -0300 | [diff] [blame] | 82 | {V4L2_MBUS_FMT_Y8_1X8, V4L2_COLORSPACE_JPEG}, |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 83 | }; |
| 84 | |
| 85 | struct mt9m001 { |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 86 | struct v4l2_subdev subdev; |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 87 | struct v4l2_rect rect; /* Sensor window */ |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 88 | const struct mt9m001_datafmt *fmt; |
| 89 | const struct mt9m001_datafmt *fmts; |
| 90 | int num_fmts; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 91 | int model; /* V4L2_IDENT_MT9M001* codes from v4l2-chip-ident.h */ |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 92 | unsigned int gain; |
| 93 | unsigned int exposure; |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 94 | unsigned short y_skip_top; /* Lines to skip at the top */ |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 95 | unsigned char autoexposure; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 96 | }; |
| 97 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 98 | static struct mt9m001 *to_mt9m001(const struct i2c_client *client) |
| 99 | { |
| 100 | return container_of(i2c_get_clientdata(client), struct mt9m001, subdev); |
| 101 | } |
| 102 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 103 | static int reg_read(struct i2c_client *client, const u8 reg) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 104 | { |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 105 | s32 data = i2c_smbus_read_word_data(client, reg); |
| 106 | return data < 0 ? data : swab16(data); |
| 107 | } |
| 108 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 109 | static int reg_write(struct i2c_client *client, const u8 reg, |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 110 | const u16 data) |
| 111 | { |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 112 | return i2c_smbus_write_word_data(client, reg, swab16(data)); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 113 | } |
| 114 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 115 | static int reg_set(struct i2c_client *client, const u8 reg, |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 116 | const u16 data) |
| 117 | { |
| 118 | int ret; |
| 119 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 120 | ret = reg_read(client, reg); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 121 | if (ret < 0) |
| 122 | return ret; |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 123 | return reg_write(client, reg, ret | data); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 124 | } |
| 125 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 126 | static int reg_clear(struct i2c_client *client, const u8 reg, |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 127 | const u16 data) |
| 128 | { |
| 129 | int ret; |
| 130 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 131 | ret = reg_read(client, reg); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 132 | if (ret < 0) |
| 133 | return ret; |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 134 | return reg_write(client, reg, ret & ~data); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 135 | } |
| 136 | |
Guennadi Liakhovetski | a4c56fd | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 137 | static int mt9m001_init(struct i2c_client *client) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 138 | { |
| 139 | int ret; |
| 140 | |
Guennadi Liakhovetski | 85f8be6 | 2009-08-25 11:47:00 -0300 | [diff] [blame] | 141 | dev_dbg(&client->dev, "%s\n", __func__); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 142 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 143 | /* |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 144 | * We don't know, whether platform provides reset, issue a soft reset |
| 145 | * too. This returns all registers to their default values. |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 146 | */ |
| 147 | ret = reg_write(client, MT9M001_RESET, 1); |
| 148 | if (!ret) |
| 149 | ret = reg_write(client, MT9M001_RESET, 0); |
Stefan Herbrechtsmeier | 8103466 | 2008-08-14 12:04:11 -0300 | [diff] [blame] | 150 | |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 151 | /* Disable chip, synchronous option update */ |
| 152 | if (!ret) |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 153 | ret = reg_write(client, MT9M001_OUTPUT_CONTROL, 0); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 154 | |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 155 | return ret; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 156 | } |
| 157 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 158 | static int mt9m001_s_stream(struct v4l2_subdev *sd, int enable) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 159 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 160 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 161 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 162 | /* Switch to master "normal" mode or stop sensor readout */ |
| 163 | if (reg_write(client, MT9M001_OUTPUT_CONTROL, enable ? 2 : 0) < 0) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 164 | return -EIO; |
| 165 | return 0; |
| 166 | } |
| 167 | |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 168 | static int mt9m001_set_bus_param(struct soc_camera_device *icd, |
| 169 | unsigned long flags) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 170 | { |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 171 | struct soc_camera_link *icl = to_soc_camera_link(icd); |
Sascha Hauer | 36034dc | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 172 | unsigned long width_flag = flags & SOCAM_DATAWIDTH_MASK; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 173 | |
Sascha Hauer | 36034dc | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 174 | /* Only one width bit may be set */ |
| 175 | if (!is_power_of_2(width_flag)) |
| 176 | return -EINVAL; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 177 | |
Sascha Hauer | 36034dc | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 178 | if (icl->set_bus_param) |
| 179 | return icl->set_bus_param(icl, width_flag); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 180 | |
Sascha Hauer | 36034dc | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 181 | /* |
| 182 | * Without board specific bus width settings we only support the |
| 183 | * sensors native bus width |
| 184 | */ |
| 185 | if (width_flag == SOCAM_DATAWIDTH_10) |
| 186 | return 0; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 187 | |
Sascha Hauer | 36034dc | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 188 | return -EINVAL; |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 189 | } |
| 190 | |
| 191 | static unsigned long mt9m001_query_bus_param(struct soc_camera_device *icd) |
| 192 | { |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 193 | struct soc_camera_link *icl = to_soc_camera_link(icd); |
Guennadi Liakhovetski | bd73b36 | 2008-12-23 05:54:45 -0300 | [diff] [blame] | 194 | /* MT9M001 has all capture_format parameters fixed */ |
Guennadi Liakhovetski | e951cbf | 2009-03-31 03:44:22 -0300 | [diff] [blame] | 195 | unsigned long flags = SOCAM_PCLK_SAMPLE_FALLING | |
Guennadi Liakhovetski | bd73b36 | 2008-12-23 05:54:45 -0300 | [diff] [blame] | 196 | SOCAM_HSYNC_ACTIVE_HIGH | SOCAM_VSYNC_ACTIVE_HIGH | |
Guennadi Liakhovetski | 2d9329f | 2009-02-23 12:12:58 -0300 | [diff] [blame] | 197 | SOCAM_DATA_ACTIVE_HIGH | SOCAM_MASTER; |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 198 | |
Sascha Hauer | 36034dc | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 199 | if (icl->query_bus_param) |
| 200 | flags |= icl->query_bus_param(icl) & SOCAM_DATAWIDTH_MASK; |
| 201 | else |
| 202 | flags |= SOCAM_DATAWIDTH_10; |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 203 | |
Guennadi Liakhovetski | bd73b36 | 2008-12-23 05:54:45 -0300 | [diff] [blame] | 204 | return soc_camera_apply_sensor_flags(icl, flags); |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 205 | } |
| 206 | |
Guennadi Liakhovetski | 08590b9 | 2009-08-25 11:46:54 -0300 | [diff] [blame] | 207 | static int mt9m001_s_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 208 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 209 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 210 | struct mt9m001 *mt9m001 = to_mt9m001(client); |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 211 | struct v4l2_rect rect = a->c; |
Guennadi Liakhovetski | 08590b9 | 2009-08-25 11:46:54 -0300 | [diff] [blame] | 212 | struct soc_camera_device *icd = client->dev.platform_data; |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 213 | int ret; |
| 214 | const u16 hblank = 9, vblank = 25; |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 215 | unsigned int total_h; |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 216 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 217 | if (mt9m001->fmts == mt9m001_colour_fmts) |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 218 | /* |
| 219 | * Bayer format - even number of rows for simplicity, |
| 220 | * but let the user play with the top row. |
| 221 | */ |
| 222 | rect.height = ALIGN(rect.height, 2); |
| 223 | |
| 224 | /* Datasheet requirement: see register description */ |
| 225 | rect.width = ALIGN(rect.width, 2); |
| 226 | rect.left = ALIGN(rect.left, 2); |
| 227 | |
| 228 | soc_camera_limit_side(&rect.left, &rect.width, |
| 229 | MT9M001_COLUMN_SKIP, MT9M001_MIN_WIDTH, MT9M001_MAX_WIDTH); |
| 230 | |
| 231 | soc_camera_limit_side(&rect.top, &rect.height, |
| 232 | MT9M001_ROW_SKIP, MT9M001_MIN_HEIGHT, MT9M001_MAX_HEIGHT); |
| 233 | |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 234 | total_h = rect.height + mt9m001->y_skip_top + vblank; |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 235 | |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 236 | /* Blanking and start values - default... */ |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 237 | ret = reg_write(client, MT9M001_HORIZONTAL_BLANKING, hblank); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 238 | if (!ret) |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 239 | ret = reg_write(client, MT9M001_VERTICAL_BLANKING, vblank); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 240 | |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 241 | /* |
| 242 | * The caller provides a supported format, as verified per |
| 243 | * call to icd->try_fmt() |
| 244 | */ |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 245 | if (!ret) |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 246 | ret = reg_write(client, MT9M001_COLUMN_START, rect.left); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 247 | if (!ret) |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 248 | ret = reg_write(client, MT9M001_ROW_START, rect.top); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 249 | if (!ret) |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 250 | ret = reg_write(client, MT9M001_WINDOW_WIDTH, rect.width - 1); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 251 | if (!ret) |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 252 | ret = reg_write(client, MT9M001_WINDOW_HEIGHT, |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 253 | rect.height + mt9m001->y_skip_top - 1); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 254 | if (!ret && mt9m001->autoexposure) { |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 255 | ret = reg_write(client, MT9M001_SHUTTER_WIDTH, total_h); |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 256 | if (!ret) { |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 257 | const struct v4l2_queryctrl *qctrl = |
| 258 | soc_camera_find_qctrl(icd->ops, |
| 259 | V4L2_CID_EXPOSURE); |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 260 | mt9m001->exposure = (524 + (total_h - 1) * |
| 261 | (qctrl->maximum - qctrl->minimum)) / |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 262 | 1048 + qctrl->minimum; |
| 263 | } |
| 264 | } |
| 265 | |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 266 | if (!ret) |
| 267 | mt9m001->rect = rect; |
| 268 | |
Guennadi Liakhovetski | 1121164 | 2008-08-14 12:03:18 -0300 | [diff] [blame] | 269 | return ret; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 270 | } |
| 271 | |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 272 | static int mt9m001_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) |
| 273 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 274 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 275 | struct mt9m001 *mt9m001 = to_mt9m001(client); |
| 276 | |
| 277 | a->c = mt9m001->rect; |
| 278 | a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 279 | |
| 280 | return 0; |
| 281 | } |
| 282 | |
| 283 | static int mt9m001_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a) |
| 284 | { |
| 285 | a->bounds.left = MT9M001_COLUMN_SKIP; |
| 286 | a->bounds.top = MT9M001_ROW_SKIP; |
| 287 | a->bounds.width = MT9M001_MAX_WIDTH; |
| 288 | a->bounds.height = MT9M001_MAX_HEIGHT; |
| 289 | a->defrect = a->bounds; |
| 290 | a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; |
| 291 | a->pixelaspect.numerator = 1; |
| 292 | a->pixelaspect.denominator = 1; |
| 293 | |
| 294 | return 0; |
| 295 | } |
| 296 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 297 | static int mt9m001_g_fmt(struct v4l2_subdev *sd, |
| 298 | struct v4l2_mbus_framefmt *mf) |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 299 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 300 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 301 | struct mt9m001 *mt9m001 = to_mt9m001(client); |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 302 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 303 | mf->width = mt9m001->rect.width; |
| 304 | mf->height = mt9m001->rect.height; |
| 305 | mf->code = mt9m001->fmt->code; |
| 306 | mf->colorspace = mt9m001->fmt->colorspace; |
| 307 | mf->field = V4L2_FIELD_NONE; |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 308 | |
| 309 | return 0; |
| 310 | } |
| 311 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 312 | static int mt9m001_s_fmt(struct v4l2_subdev *sd, |
| 313 | struct v4l2_mbus_framefmt *mf) |
Guennadi Liakhovetski | 09e231b | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 314 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 315 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 316 | struct mt9m001 *mt9m001 = to_mt9m001(client); |
Guennadi Liakhovetski | 08590b9 | 2009-08-25 11:46:54 -0300 | [diff] [blame] | 317 | struct v4l2_crop a = { |
| 318 | .c = { |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 319 | .left = mt9m001->rect.left, |
| 320 | .top = mt9m001->rect.top, |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 321 | .width = mf->width, |
| 322 | .height = mf->height, |
Guennadi Liakhovetski | 08590b9 | 2009-08-25 11:46:54 -0300 | [diff] [blame] | 323 | }, |
Guennadi Liakhovetski | 09e231b | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 324 | }; |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 325 | int ret; |
Guennadi Liakhovetski | 09e231b | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 326 | |
| 327 | /* No support for scaling so far, just crop. TODO: use skipping */ |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 328 | ret = mt9m001_s_crop(sd, &a); |
| 329 | if (!ret) { |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 330 | mf->width = mt9m001->rect.width; |
| 331 | mf->height = mt9m001->rect.height; |
| 332 | mt9m001->fmt = mt9m001_find_datafmt(mf->code, |
| 333 | mt9m001->fmts, mt9m001->num_fmts); |
| 334 | mf->colorspace = mt9m001->fmt->colorspace; |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 335 | } |
| 336 | |
| 337 | return ret; |
Guennadi Liakhovetski | 09e231b | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 338 | } |
| 339 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 340 | static int mt9m001_try_fmt(struct v4l2_subdev *sd, |
| 341 | struct v4l2_mbus_framefmt *mf) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 342 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 343 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 344 | struct mt9m001 *mt9m001 = to_mt9m001(client); |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 345 | const struct mt9m001_datafmt *fmt; |
Guennadi Liakhovetski | 64f5905 | 2008-12-18 11:51:55 -0300 | [diff] [blame] | 346 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 347 | v4l_bound_align_image(&mf->width, MT9M001_MIN_WIDTH, |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 348 | MT9M001_MAX_WIDTH, 1, |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 349 | &mf->height, MT9M001_MIN_HEIGHT + mt9m001->y_skip_top, |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 350 | MT9M001_MAX_HEIGHT + mt9m001->y_skip_top, 0, 0); |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 351 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 352 | if (mt9m001->fmts == mt9m001_colour_fmts) |
| 353 | mf->height = ALIGN(mf->height - 1, 2); |
| 354 | |
| 355 | fmt = mt9m001_find_datafmt(mf->code, mt9m001->fmts, |
| 356 | mt9m001->num_fmts); |
| 357 | if (!fmt) { |
| 358 | fmt = mt9m001->fmt; |
| 359 | mf->code = fmt->code; |
| 360 | } |
| 361 | |
| 362 | mf->colorspace = fmt->colorspace; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 363 | |
| 364 | return 0; |
| 365 | } |
| 366 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 367 | static int mt9m001_g_chip_ident(struct v4l2_subdev *sd, |
| 368 | struct v4l2_dbg_chip_ident *id) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 369 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 370 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 371 | struct mt9m001 *mt9m001 = to_mt9m001(client); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 372 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 373 | if (id->match.type != V4L2_CHIP_MATCH_I2C_ADDR) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 374 | return -EINVAL; |
| 375 | |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 376 | if (id->match.addr != client->addr) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 377 | return -ENODEV; |
| 378 | |
| 379 | id->ident = mt9m001->model; |
| 380 | id->revision = 0; |
| 381 | |
| 382 | return 0; |
| 383 | } |
| 384 | |
| 385 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 386 | static int mt9m001_g_register(struct v4l2_subdev *sd, |
| 387 | struct v4l2_dbg_register *reg) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 388 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 389 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 390 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 391 | if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 392 | return -EINVAL; |
| 393 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 394 | if (reg->match.addr != client->addr) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 395 | return -ENODEV; |
| 396 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 397 | reg->size = 2; |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 398 | reg->val = reg_read(client, reg->reg); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 399 | |
| 400 | if (reg->val > 0xffff) |
| 401 | return -EIO; |
| 402 | |
| 403 | return 0; |
| 404 | } |
| 405 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 406 | static int mt9m001_s_register(struct v4l2_subdev *sd, |
| 407 | struct v4l2_dbg_register *reg) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 408 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 409 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 410 | |
Hans Verkuil | aecde8b5 | 2008-12-30 07:14:19 -0300 | [diff] [blame] | 411 | if (reg->match.type != V4L2_CHIP_MATCH_I2C_ADDR || reg->reg > 0xff) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 412 | return -EINVAL; |
| 413 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 414 | if (reg->match.addr != client->addr) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 415 | return -ENODEV; |
| 416 | |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 417 | if (reg_write(client, reg->reg, reg->val) < 0) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 418 | return -EIO; |
| 419 | |
| 420 | return 0; |
| 421 | } |
| 422 | #endif |
| 423 | |
Adrian Bunk | 4407a46 | 2008-04-28 17:13:51 -0300 | [diff] [blame] | 424 | static const struct v4l2_queryctrl mt9m001_controls[] = { |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 425 | { |
| 426 | .id = V4L2_CID_VFLIP, |
| 427 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 428 | .name = "Flip Vertically", |
| 429 | .minimum = 0, |
| 430 | .maximum = 1, |
| 431 | .step = 1, |
| 432 | .default_value = 0, |
| 433 | }, { |
| 434 | .id = V4L2_CID_GAIN, |
| 435 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 436 | .name = "Gain", |
| 437 | .minimum = 0, |
| 438 | .maximum = 127, |
| 439 | .step = 1, |
| 440 | .default_value = 64, |
| 441 | .flags = V4L2_CTRL_FLAG_SLIDER, |
| 442 | }, { |
| 443 | .id = V4L2_CID_EXPOSURE, |
| 444 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 445 | .name = "Exposure", |
| 446 | .minimum = 1, |
| 447 | .maximum = 255, |
| 448 | .step = 1, |
| 449 | .default_value = 255, |
| 450 | .flags = V4L2_CTRL_FLAG_SLIDER, |
| 451 | }, { |
| 452 | .id = V4L2_CID_EXPOSURE_AUTO, |
| 453 | .type = V4L2_CTRL_TYPE_BOOLEAN, |
| 454 | .name = "Automatic Exposure", |
| 455 | .minimum = 0, |
| 456 | .maximum = 1, |
| 457 | .step = 1, |
| 458 | .default_value = 1, |
| 459 | } |
| 460 | }; |
| 461 | |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 462 | static struct soc_camera_ops mt9m001_ops = { |
Guennadi Liakhovetski | ad5f2e8 | 2008-03-07 21:57:18 -0300 | [diff] [blame] | 463 | .set_bus_param = mt9m001_set_bus_param, |
| 464 | .query_bus_param = mt9m001_query_bus_param, |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 465 | .controls = mt9m001_controls, |
| 466 | .num_controls = ARRAY_SIZE(mt9m001_controls), |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 467 | }; |
| 468 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 469 | static int mt9m001_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 470 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 471 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 472 | struct mt9m001 *mt9m001 = to_mt9m001(client); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 473 | int data; |
| 474 | |
| 475 | switch (ctrl->id) { |
| 476 | case V4L2_CID_VFLIP: |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 477 | data = reg_read(client, MT9M001_READ_OPTIONS2); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 478 | if (data < 0) |
| 479 | return -EIO; |
| 480 | ctrl->value = !!(data & 0x8000); |
| 481 | break; |
| 482 | case V4L2_CID_EXPOSURE_AUTO: |
| 483 | ctrl->value = mt9m001->autoexposure; |
| 484 | break; |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 485 | case V4L2_CID_GAIN: |
| 486 | ctrl->value = mt9m001->gain; |
| 487 | break; |
| 488 | case V4L2_CID_EXPOSURE: |
| 489 | ctrl->value = mt9m001->exposure; |
| 490 | break; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 491 | } |
| 492 | return 0; |
| 493 | } |
| 494 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 495 | static int mt9m001_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 496 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 497 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 498 | struct mt9m001 *mt9m001 = to_mt9m001(client); |
| 499 | struct soc_camera_device *icd = client->dev.platform_data; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 500 | const struct v4l2_queryctrl *qctrl; |
| 501 | int data; |
| 502 | |
| 503 | qctrl = soc_camera_find_qctrl(&mt9m001_ops, ctrl->id); |
| 504 | |
| 505 | if (!qctrl) |
| 506 | return -EINVAL; |
| 507 | |
| 508 | switch (ctrl->id) { |
| 509 | case V4L2_CID_VFLIP: |
| 510 | if (ctrl->value) |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 511 | data = reg_set(client, MT9M001_READ_OPTIONS2, 0x8000); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 512 | else |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 513 | data = reg_clear(client, MT9M001_READ_OPTIONS2, 0x8000); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 514 | if (data < 0) |
| 515 | return -EIO; |
| 516 | break; |
| 517 | case V4L2_CID_GAIN: |
| 518 | if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum) |
| 519 | return -EINVAL; |
| 520 | /* See Datasheet Table 7, Gain settings. */ |
| 521 | if (ctrl->value <= qctrl->default_value) { |
| 522 | /* Pack it into 0..1 step 0.125, register values 0..8 */ |
| 523 | unsigned long range = qctrl->default_value - qctrl->minimum; |
| 524 | data = ((ctrl->value - qctrl->minimum) * 8 + range / 2) / range; |
| 525 | |
Guennadi Liakhovetski | 85f8be6 | 2009-08-25 11:47:00 -0300 | [diff] [blame] | 526 | dev_dbg(&client->dev, "Setting gain %d\n", data); |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 527 | data = reg_write(client, MT9M001_GLOBAL_GAIN, data); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 528 | if (data < 0) |
| 529 | return -EIO; |
| 530 | } else { |
| 531 | /* Pack it into 1.125..15 variable step, register values 9..67 */ |
| 532 | /* We assume qctrl->maximum - qctrl->default_value - 1 > 0 */ |
| 533 | unsigned long range = qctrl->maximum - qctrl->default_value - 1; |
| 534 | unsigned long gain = ((ctrl->value - qctrl->default_value - 1) * |
| 535 | 111 + range / 2) / range + 9; |
| 536 | |
| 537 | if (gain <= 32) |
| 538 | data = gain; |
| 539 | else if (gain <= 64) |
| 540 | data = ((gain - 32) * 16 + 16) / 32 + 80; |
| 541 | else |
| 542 | data = ((gain - 64) * 7 + 28) / 56 + 96; |
| 543 | |
Guennadi Liakhovetski | 85f8be6 | 2009-08-25 11:47:00 -0300 | [diff] [blame] | 544 | dev_dbg(&client->dev, "Setting gain from %d to %d\n", |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 545 | reg_read(client, MT9M001_GLOBAL_GAIN), data); |
| 546 | data = reg_write(client, MT9M001_GLOBAL_GAIN, data); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 547 | if (data < 0) |
| 548 | return -EIO; |
| 549 | } |
| 550 | |
| 551 | /* Success */ |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 552 | mt9m001->gain = ctrl->value; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 553 | break; |
| 554 | case V4L2_CID_EXPOSURE: |
| 555 | /* mt9m001 has maximum == default */ |
| 556 | if (ctrl->value > qctrl->maximum || ctrl->value < qctrl->minimum) |
| 557 | return -EINVAL; |
| 558 | else { |
| 559 | unsigned long range = qctrl->maximum - qctrl->minimum; |
| 560 | unsigned long shutter = ((ctrl->value - qctrl->minimum) * 1048 + |
| 561 | range / 2) / range + 1; |
| 562 | |
Guennadi Liakhovetski | 85f8be6 | 2009-08-25 11:47:00 -0300 | [diff] [blame] | 563 | dev_dbg(&client->dev, |
| 564 | "Setting shutter width from %d to %lu\n", |
| 565 | reg_read(client, MT9M001_SHUTTER_WIDTH), |
| 566 | shutter); |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 567 | if (reg_write(client, MT9M001_SHUTTER_WIDTH, shutter) < 0) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 568 | return -EIO; |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 569 | mt9m001->exposure = ctrl->value; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 570 | mt9m001->autoexposure = 0; |
| 571 | } |
| 572 | break; |
| 573 | case V4L2_CID_EXPOSURE_AUTO: |
| 574 | if (ctrl->value) { |
| 575 | const u16 vblank = 25; |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 576 | unsigned int total_h = mt9m001->rect.height + |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 577 | mt9m001->y_skip_top + vblank; |
Guennadi Liakhovetski | a0705b0 | 2009-08-25 11:46:17 -0300 | [diff] [blame] | 578 | if (reg_write(client, MT9M001_SHUTTER_WIDTH, |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 579 | total_h) < 0) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 580 | return -EIO; |
| 581 | qctrl = soc_camera_find_qctrl(icd->ops, V4L2_CID_EXPOSURE); |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 582 | mt9m001->exposure = (524 + (total_h - 1) * |
| 583 | (qctrl->maximum - qctrl->minimum)) / |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 584 | 1048 + qctrl->minimum; |
| 585 | mt9m001->autoexposure = 1; |
| 586 | } else |
| 587 | mt9m001->autoexposure = 0; |
| 588 | break; |
| 589 | } |
| 590 | return 0; |
| 591 | } |
| 592 | |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 593 | /* |
| 594 | * Interface active, can use i2c. If it fails, it can indeed mean, that |
| 595 | * this wasn't our capture interface, so, we wait for the right one |
| 596 | */ |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 597 | static int mt9m001_video_probe(struct soc_camera_device *icd, |
| 598 | struct i2c_client *client) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 599 | { |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 600 | struct mt9m001 *mt9m001 = to_mt9m001(client); |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 601 | struct soc_camera_link *icl = to_soc_camera_link(icd); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 602 | s32 data; |
Sascha Hauer | 36034dc | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 603 | unsigned long flags; |
Guennadi Liakhovetski | a4c56fd | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 604 | int ret; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 605 | |
Guennadi Liakhovetski | 7dfff95 | 2011-07-15 20:03:38 -0300 | [diff] [blame] | 606 | /* We must have a parent by now. And it cannot be a wrong one. */ |
| 607 | BUG_ON(!icd->parent || |
| 608 | to_soc_camera_host(icd->parent)->nr != icd->iface); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 609 | |
| 610 | /* Enable the chip */ |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 611 | data = reg_write(client, MT9M001_CHIP_ENABLE, 1); |
Guennadi Liakhovetski | 85f8be6 | 2009-08-25 11:47:00 -0300 | [diff] [blame] | 612 | dev_dbg(&client->dev, "write: %d\n", data); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 613 | |
| 614 | /* Read out the chip version register */ |
Guennadi Liakhovetski | 9538e1c | 2009-04-24 12:57:01 -0300 | [diff] [blame] | 615 | data = reg_read(client, MT9M001_CHIP_VERSION); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 616 | |
| 617 | /* must be 0x8411 or 0x8421 for colour sensor and 8431 for bw */ |
| 618 | switch (data) { |
| 619 | case 0x8411: |
| 620 | case 0x8421: |
| 621 | mt9m001->model = V4L2_IDENT_MT9M001C12ST; |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 622 | mt9m001->fmts = mt9m001_colour_fmts; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 623 | break; |
| 624 | case 0x8431: |
| 625 | mt9m001->model = V4L2_IDENT_MT9M001C12STM; |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 626 | mt9m001->fmts = mt9m001_monochrome_fmts; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 627 | break; |
| 628 | default: |
Guennadi Liakhovetski | 85f8be6 | 2009-08-25 11:47:00 -0300 | [diff] [blame] | 629 | dev_err(&client->dev, |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 630 | "No MT9M001 chip detected, register read %x\n", data); |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 631 | return -ENODEV; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 632 | } |
| 633 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 634 | mt9m001->num_fmts = 0; |
Sascha Hauer | 36034dc | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 635 | |
| 636 | /* |
| 637 | * This is a 10bit sensor, so by default we only allow 10bit. |
| 638 | * The platform may support different bus widths due to |
| 639 | * different routing of the data lines. |
| 640 | */ |
| 641 | if (icl->query_bus_param) |
| 642 | flags = icl->query_bus_param(icl); |
| 643 | else |
| 644 | flags = SOCAM_DATAWIDTH_10; |
| 645 | |
| 646 | if (flags & SOCAM_DATAWIDTH_10) |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 647 | mt9m001->num_fmts++; |
Sascha Hauer | 36034dc | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 648 | else |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 649 | mt9m001->fmts++; |
Sascha Hauer | 36034dc | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 650 | |
| 651 | if (flags & SOCAM_DATAWIDTH_8) |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 652 | mt9m001->num_fmts++; |
Sascha Hauer | 36034dc | 2009-03-13 06:08:20 -0300 | [diff] [blame] | 653 | |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 654 | mt9m001->fmt = &mt9m001->fmts[0]; |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 655 | |
Guennadi Liakhovetski | 85f8be6 | 2009-08-25 11:47:00 -0300 | [diff] [blame] | 656 | dev_info(&client->dev, "Detected a MT9M001 chip ID %x (%s)\n", data, |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 657 | data == 0x8431 ? "C12STM" : "C12ST"); |
| 658 | |
Guennadi Liakhovetski | a4c56fd | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 659 | ret = mt9m001_init(client); |
| 660 | if (ret < 0) |
| 661 | dev_err(&client->dev, "Failed to initialise the camera\n"); |
| 662 | |
Guennadi Liakhovetski | 96c7539 | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 663 | /* mt9m001_init() has reset the chip, returning registers to defaults */ |
| 664 | mt9m001->gain = 64; |
| 665 | mt9m001->exposure = 255; |
| 666 | |
Guennadi Liakhovetski | a4c56fd | 2009-08-25 11:53:23 -0300 | [diff] [blame] | 667 | return ret; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 668 | } |
| 669 | |
| 670 | static void mt9m001_video_remove(struct soc_camera_device *icd) |
| 671 | { |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 672 | struct soc_camera_link *icl = to_soc_camera_link(icd); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 673 | |
Guennadi Liakhovetski | 7dfff95 | 2011-07-15 20:03:38 -0300 | [diff] [blame] | 674 | dev_dbg(icd->pdev, "Video removed: %p, %p\n", |
| 675 | icd->parent, icd->vdev); |
Guennadi Liakhovetski | 594bb46 | 2009-04-24 12:53:51 -0300 | [diff] [blame] | 676 | if (icl->free_bus) |
| 677 | icl->free_bus(icl); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 678 | } |
| 679 | |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 680 | static int mt9m001_g_skip_top_lines(struct v4l2_subdev *sd, u32 *lines) |
| 681 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 682 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 683 | struct mt9m001 *mt9m001 = to_mt9m001(client); |
| 684 | |
| 685 | *lines = mt9m001->y_skip_top; |
| 686 | |
| 687 | return 0; |
| 688 | } |
| 689 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 690 | static struct v4l2_subdev_core_ops mt9m001_subdev_core_ops = { |
| 691 | .g_ctrl = mt9m001_g_ctrl, |
| 692 | .s_ctrl = mt9m001_s_ctrl, |
| 693 | .g_chip_ident = mt9m001_g_chip_ident, |
| 694 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
| 695 | .g_register = mt9m001_g_register, |
| 696 | .s_register = mt9m001_s_register, |
| 697 | #endif |
| 698 | }; |
| 699 | |
Hans Verkuil | 3805f20 | 2010-05-08 17:55:00 -0300 | [diff] [blame] | 700 | static int mt9m001_enum_fmt(struct v4l2_subdev *sd, unsigned int index, |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 701 | enum v4l2_mbus_pixelcode *code) |
| 702 | { |
Laurent Pinchart | c4ce6d1 | 2010-07-30 17:24:54 -0300 | [diff] [blame] | 703 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 704 | struct mt9m001 *mt9m001 = to_mt9m001(client); |
| 705 | |
Hans Verkuil | 3805f20 | 2010-05-08 17:55:00 -0300 | [diff] [blame] | 706 | if (index >= mt9m001->num_fmts) |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 707 | return -EINVAL; |
| 708 | |
| 709 | *code = mt9m001->fmts[index].code; |
| 710 | return 0; |
| 711 | } |
| 712 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 713 | static struct v4l2_subdev_video_ops mt9m001_subdev_video_ops = { |
| 714 | .s_stream = mt9m001_s_stream, |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 715 | .s_mbus_fmt = mt9m001_s_fmt, |
| 716 | .g_mbus_fmt = mt9m001_g_fmt, |
| 717 | .try_mbus_fmt = mt9m001_try_fmt, |
Guennadi Liakhovetski | 08590b9 | 2009-08-25 11:46:54 -0300 | [diff] [blame] | 718 | .s_crop = mt9m001_s_crop, |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 719 | .g_crop = mt9m001_g_crop, |
| 720 | .cropcap = mt9m001_cropcap, |
Guennadi Liakhovetski | 760697b | 2009-12-11 11:46:49 -0300 | [diff] [blame] | 721 | .enum_mbus_fmt = mt9m001_enum_fmt, |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 722 | }; |
| 723 | |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 724 | static struct v4l2_subdev_sensor_ops mt9m001_subdev_sensor_ops = { |
| 725 | .g_skip_top_lines = mt9m001_g_skip_top_lines, |
| 726 | }; |
| 727 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 728 | static struct v4l2_subdev_ops mt9m001_subdev_ops = { |
| 729 | .core = &mt9m001_subdev_core_ops, |
| 730 | .video = &mt9m001_subdev_video_ops, |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 731 | .sensor = &mt9m001_subdev_sensor_ops, |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 732 | }; |
| 733 | |
Jean Delvare | d2653e9 | 2008-04-29 23:11:39 +0200 | [diff] [blame] | 734 | static int mt9m001_probe(struct i2c_client *client, |
| 735 | const struct i2c_device_id *did) |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 736 | { |
| 737 | struct mt9m001 *mt9m001; |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 738 | struct soc_camera_device *icd = client->dev.platform_data; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 739 | struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 740 | struct soc_camera_link *icl; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 741 | int ret; |
| 742 | |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 743 | if (!icd) { |
| 744 | dev_err(&client->dev, "MT9M001: missing soc-camera data!\n"); |
| 745 | return -EINVAL; |
| 746 | } |
| 747 | |
| 748 | icl = to_soc_camera_link(icd); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 749 | if (!icl) { |
| 750 | dev_err(&client->dev, "MT9M001 driver needs platform data\n"); |
| 751 | return -EINVAL; |
| 752 | } |
| 753 | |
| 754 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA)) { |
| 755 | dev_warn(&adapter->dev, |
| 756 | "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n"); |
| 757 | return -EIO; |
| 758 | } |
| 759 | |
| 760 | mt9m001 = kzalloc(sizeof(struct mt9m001), GFP_KERNEL); |
| 761 | if (!mt9m001) |
| 762 | return -ENOMEM; |
| 763 | |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 764 | v4l2_i2c_subdev_init(&mt9m001->subdev, client, &mt9m001_subdev_ops); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 765 | |
| 766 | /* Second stage probe - when a capture adapter is there */ |
Guennadi Liakhovetski | a0705b0 | 2009-08-25 11:46:17 -0300 | [diff] [blame] | 767 | icd->ops = &mt9m001_ops; |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 768 | |
Guennadi Liakhovetski | 3253610 | 2009-12-11 11:14:46 -0300 | [diff] [blame] | 769 | mt9m001->y_skip_top = 0; |
Guennadi Liakhovetski | 6a6c878 | 2009-08-25 11:50:46 -0300 | [diff] [blame] | 770 | mt9m001->rect.left = MT9M001_COLUMN_SKIP; |
| 771 | mt9m001->rect.top = MT9M001_ROW_SKIP; |
| 772 | mt9m001->rect.width = MT9M001_MAX_WIDTH; |
| 773 | mt9m001->rect.height = MT9M001_MAX_HEIGHT; |
| 774 | |
Guennadi Liakhovetski | 5d28d52 | 2009-12-11 11:15:05 -0300 | [diff] [blame] | 775 | /* |
| 776 | * Simulated autoexposure. If enabled, we calculate shutter width |
| 777 | * ourselves in the driver based on vertical blanking and frame width |
| 778 | */ |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 779 | mt9m001->autoexposure = 1; |
| 780 | |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 781 | ret = mt9m001_video_probe(icd, client); |
| 782 | if (ret) { |
| 783 | icd->ops = NULL; |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 784 | kfree(mt9m001); |
| 785 | } |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 786 | |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 787 | return ret; |
| 788 | } |
| 789 | |
| 790 | static int mt9m001_remove(struct i2c_client *client) |
| 791 | { |
Guennadi Liakhovetski | 979ea1d | 2009-08-25 11:43:33 -0300 | [diff] [blame] | 792 | struct mt9m001 *mt9m001 = to_mt9m001(client); |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 793 | struct soc_camera_device *icd = client->dev.platform_data; |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 794 | |
Guennadi Liakhovetski | 40e2e09 | 2009-08-25 11:28:22 -0300 | [diff] [blame] | 795 | icd->ops = NULL; |
| 796 | mt9m001_video_remove(icd); |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 797 | kfree(mt9m001); |
| 798 | |
| 799 | return 0; |
| 800 | } |
| 801 | |
Jean Delvare | 3760f73 | 2008-04-29 23:11:40 +0200 | [diff] [blame] | 802 | static const struct i2c_device_id mt9m001_id[] = { |
| 803 | { "mt9m001", 0 }, |
| 804 | { } |
| 805 | }; |
| 806 | MODULE_DEVICE_TABLE(i2c, mt9m001_id); |
| 807 | |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 808 | static struct i2c_driver mt9m001_i2c_driver = { |
| 809 | .driver = { |
| 810 | .name = "mt9m001", |
| 811 | }, |
| 812 | .probe = mt9m001_probe, |
| 813 | .remove = mt9m001_remove, |
Jean Delvare | 3760f73 | 2008-04-29 23:11:40 +0200 | [diff] [blame] | 814 | .id_table = mt9m001_id, |
Guennadi Liakhovetski | f523dd0 | 2008-04-22 14:42:04 -0300 | [diff] [blame] | 815 | }; |
| 816 | |
| 817 | static int __init mt9m001_mod_init(void) |
| 818 | { |
| 819 | return i2c_add_driver(&mt9m001_i2c_driver); |
| 820 | } |
| 821 | |
| 822 | static void __exit mt9m001_mod_exit(void) |
| 823 | { |
| 824 | i2c_del_driver(&mt9m001_i2c_driver); |
| 825 | } |
| 826 | |
| 827 | module_init(mt9m001_mod_init); |
| 828 | module_exit(mt9m001_mod_exit); |
| 829 | |
| 830 | MODULE_DESCRIPTION("Micron MT9M001 Camera driver"); |
| 831 | MODULE_AUTHOR("Guennadi Liakhovetski <kernel@pengutronix.de>"); |
| 832 | MODULE_LICENSE("GPL"); |