Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 1 | /* |
| 2 | * indycam.c - Silicon Graphics IndyCam digital camera driver |
| 3 | * |
| 4 | * Copyright (C) 2003 Ladislav Michl <ladis@linux-mips.org> |
| 5 | * Copyright (C) 2004,2005 Mikael Nousiainen <tmnousia@cc.hut.fi> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | */ |
| 11 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 12 | #include <linux/delay.h> |
| 13 | #include <linux/errno.h> |
| 14 | #include <linux/fs.h> |
Ladislav Michl | 495515b | 2005-09-23 10:52:27 +0000 | [diff] [blame] | 15 | #include <linux/init.h> |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 16 | #include <linux/kernel.h> |
| 17 | #include <linux/major.h> |
Ladislav Michl | 495515b | 2005-09-23 10:52:27 +0000 | [diff] [blame] | 18 | #include <linux/module.h> |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 19 | #include <linux/mm.h> |
Ladislav Michl | 495515b | 2005-09-23 10:52:27 +0000 | [diff] [blame] | 20 | #include <linux/slab.h> |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 21 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 22 | /* IndyCam decodes stream of photons into digital image representation ;-) */ |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 23 | #include <linux/videodev2.h> |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 24 | #include <linux/i2c.h> |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 25 | #include <media/v4l2-device.h> |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 26 | |
| 27 | #include "indycam.h" |
| 28 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 29 | #define INDYCAM_MODULE_VERSION "0.0.5" |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 30 | |
| 31 | MODULE_DESCRIPTION("SGI IndyCam driver"); |
| 32 | MODULE_VERSION(INDYCAM_MODULE_VERSION); |
| 33 | MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>"); |
| 34 | MODULE_LICENSE("GPL"); |
| 35 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 36 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 37 | // #define INDYCAM_DEBUG |
| 38 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 39 | #ifdef INDYCAM_DEBUG |
| 40 | #define dprintk(x...) printk("IndyCam: " x); |
| 41 | #define indycam_regdump(client) indycam_regdump_debug(client) |
| 42 | #else |
| 43 | #define dprintk(x...) |
| 44 | #define indycam_regdump(client) |
| 45 | #endif |
| 46 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 47 | struct indycam { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 48 | struct v4l2_subdev sd; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 49 | u8 version; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 50 | }; |
| 51 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 52 | static inline struct indycam *to_indycam(struct v4l2_subdev *sd) |
| 53 | { |
| 54 | return container_of(sd, struct indycam, sd); |
| 55 | } |
| 56 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 57 | static const u8 initseq[] = { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 58 | INDYCAM_CONTROL_AGCENA, /* INDYCAM_CONTROL */ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 59 | INDYCAM_SHUTTER_60, /* INDYCAM_SHUTTER */ |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 60 | INDYCAM_GAIN_DEFAULT, /* INDYCAM_GAIN */ |
| 61 | 0x00, /* INDYCAM_BRIGHTNESS (read-only) */ |
| 62 | INDYCAM_RED_BALANCE_DEFAULT, /* INDYCAM_RED_BALANCE */ |
| 63 | INDYCAM_BLUE_BALANCE_DEFAULT, /* INDYCAM_BLUE_BALANCE */ |
| 64 | INDYCAM_RED_SATURATION_DEFAULT, /* INDYCAM_RED_SATURATION */ |
| 65 | INDYCAM_BLUE_SATURATION_DEFAULT,/* INDYCAM_BLUE_SATURATION */ |
| 66 | }; |
| 67 | |
| 68 | /* IndyCam register handling */ |
| 69 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 70 | static int indycam_read_reg(struct v4l2_subdev *sd, u8 reg, u8 *value) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 71 | { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 72 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 73 | int ret; |
| 74 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 75 | if (reg == INDYCAM_REG_RESET) { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 76 | dprintk("indycam_read_reg(): " |
| 77 | "skipping write-only register %d\n", reg); |
| 78 | *value = 0; |
| 79 | return 0; |
| 80 | } |
| 81 | |
| 82 | ret = i2c_smbus_read_byte_data(client, reg); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 83 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 84 | if (ret < 0) { |
| 85 | printk(KERN_ERR "IndyCam: indycam_read_reg(): read failed, " |
| 86 | "register = 0x%02x\n", reg); |
| 87 | return ret; |
| 88 | } |
| 89 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 90 | *value = (u8)ret; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 91 | |
| 92 | return 0; |
| 93 | } |
| 94 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 95 | static int indycam_write_reg(struct v4l2_subdev *sd, u8 reg, u8 value) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 96 | { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 97 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 98 | int err; |
| 99 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 100 | if (reg == INDYCAM_REG_BRIGHTNESS || reg == INDYCAM_REG_VERSION) { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 101 | dprintk("indycam_write_reg(): " |
| 102 | "skipping read-only register %d\n", reg); |
| 103 | return 0; |
| 104 | } |
| 105 | |
| 106 | dprintk("Writing Reg %d = 0x%02x\n", reg, value); |
| 107 | err = i2c_smbus_write_byte_data(client, reg, value); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 108 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 109 | if (err) { |
| 110 | printk(KERN_ERR "IndyCam: indycam_write_reg(): write failed, " |
| 111 | "register = 0x%02x, value = 0x%02x\n", reg, value); |
| 112 | } |
| 113 | return err; |
| 114 | } |
| 115 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 116 | static int indycam_write_block(struct v4l2_subdev *sd, u8 reg, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 117 | u8 length, u8 *data) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 118 | { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 119 | int i, err; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 120 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 121 | for (i = 0; i < length; i++) { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 122 | err = indycam_write_reg(sd, reg + i, data[i]); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 123 | if (err) |
| 124 | return err; |
| 125 | } |
| 126 | |
| 127 | return 0; |
| 128 | } |
| 129 | |
| 130 | /* Helper functions */ |
| 131 | |
| 132 | #ifdef INDYCAM_DEBUG |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 133 | static void indycam_regdump_debug(struct v4l2_subdev *sd) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 134 | { |
| 135 | int i; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 136 | u8 val; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 137 | |
| 138 | for (i = 0; i < 9; i++) { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 139 | indycam_read_reg(sd, i, &val); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 140 | dprintk("Reg %d = 0x%02x\n", i, val); |
| 141 | } |
| 142 | } |
| 143 | #endif |
| 144 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 145 | static int indycam_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 146 | { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 147 | struct indycam *camera = to_indycam(sd); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 148 | u8 reg; |
| 149 | int ret = 0; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 150 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 151 | switch (ctrl->id) { |
| 152 | case V4L2_CID_AUTOGAIN: |
| 153 | case V4L2_CID_AUTO_WHITE_BALANCE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 154 | ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, ®); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 155 | if (ret) |
| 156 | return -EIO; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 157 | if (ctrl->id == V4L2_CID_AUTOGAIN) |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 158 | ctrl->value = (reg & INDYCAM_CONTROL_AGCENA) |
| 159 | ? 1 : 0; |
| 160 | else |
| 161 | ctrl->value = (reg & INDYCAM_CONTROL_AWBCTL) |
| 162 | ? 1 : 0; |
| 163 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 164 | case V4L2_CID_EXPOSURE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 165 | ret = indycam_read_reg(sd, INDYCAM_REG_SHUTTER, ®); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 166 | if (ret) |
| 167 | return -EIO; |
| 168 | ctrl->value = ((s32)reg == 0x00) ? 0xff : ((s32)reg - 1); |
| 169 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 170 | case V4L2_CID_GAIN: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 171 | ret = indycam_read_reg(sd, INDYCAM_REG_GAIN, ®); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 172 | if (ret) |
| 173 | return -EIO; |
| 174 | ctrl->value = (s32)reg; |
| 175 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 176 | case V4L2_CID_RED_BALANCE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 177 | ret = indycam_read_reg(sd, INDYCAM_REG_RED_BALANCE, ®); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 178 | if (ret) |
| 179 | return -EIO; |
| 180 | ctrl->value = (s32)reg; |
| 181 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 182 | case V4L2_CID_BLUE_BALANCE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 183 | ret = indycam_read_reg(sd, INDYCAM_REG_BLUE_BALANCE, ®); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 184 | if (ret) |
| 185 | return -EIO; |
| 186 | ctrl->value = (s32)reg; |
| 187 | break; |
| 188 | case INDYCAM_CONTROL_RED_SATURATION: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 189 | ret = indycam_read_reg(sd, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 190 | INDYCAM_REG_RED_SATURATION, ®); |
| 191 | if (ret) |
| 192 | return -EIO; |
| 193 | ctrl->value = (s32)reg; |
| 194 | break; |
| 195 | case INDYCAM_CONTROL_BLUE_SATURATION: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 196 | ret = indycam_read_reg(sd, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 197 | INDYCAM_REG_BLUE_SATURATION, ®); |
| 198 | if (ret) |
| 199 | return -EIO; |
| 200 | ctrl->value = (s32)reg; |
| 201 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 202 | case V4L2_CID_GAMMA: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 203 | if (camera->version == CAMERA_VERSION_MOOSE) { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 204 | ret = indycam_read_reg(sd, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 205 | INDYCAM_REG_GAMMA, ®); |
| 206 | if (ret) |
| 207 | return -EIO; |
| 208 | ctrl->value = (s32)reg; |
| 209 | } else { |
| 210 | ctrl->value = INDYCAM_GAMMA_DEFAULT; |
| 211 | } |
| 212 | break; |
| 213 | default: |
| 214 | ret = -EINVAL; |
| 215 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 216 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 217 | return ret; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 218 | } |
| 219 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 220 | static int indycam_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 221 | { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 222 | struct indycam *camera = to_indycam(sd); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 223 | u8 reg; |
| 224 | int ret = 0; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 225 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 226 | switch (ctrl->id) { |
| 227 | case V4L2_CID_AUTOGAIN: |
| 228 | case V4L2_CID_AUTO_WHITE_BALANCE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 229 | ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, ®); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 230 | if (ret) |
| 231 | break; |
| 232 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 233 | if (ctrl->id == V4L2_CID_AUTOGAIN) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 234 | if (ctrl->value) |
| 235 | reg |= INDYCAM_CONTROL_AGCENA; |
| 236 | else |
| 237 | reg &= ~INDYCAM_CONTROL_AGCENA; |
| 238 | } else { |
| 239 | if (ctrl->value) |
| 240 | reg |= INDYCAM_CONTROL_AWBCTL; |
| 241 | else |
| 242 | reg &= ~INDYCAM_CONTROL_AWBCTL; |
| 243 | } |
| 244 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 245 | ret = indycam_write_reg(sd, INDYCAM_REG_CONTROL, reg); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 246 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 247 | case V4L2_CID_EXPOSURE: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 248 | reg = (ctrl->value == 0xff) ? 0x00 : (ctrl->value + 1); |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 249 | ret = indycam_write_reg(sd, INDYCAM_REG_SHUTTER, reg); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 250 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 251 | case V4L2_CID_GAIN: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 252 | ret = indycam_write_reg(sd, INDYCAM_REG_GAIN, ctrl->value); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 253 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 254 | case V4L2_CID_RED_BALANCE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 255 | ret = indycam_write_reg(sd, INDYCAM_REG_RED_BALANCE, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 256 | ctrl->value); |
| 257 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 258 | case V4L2_CID_BLUE_BALANCE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 259 | ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_BALANCE, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 260 | ctrl->value); |
| 261 | break; |
| 262 | case INDYCAM_CONTROL_RED_SATURATION: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 263 | ret = indycam_write_reg(sd, INDYCAM_REG_RED_SATURATION, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 264 | ctrl->value); |
| 265 | break; |
| 266 | case INDYCAM_CONTROL_BLUE_SATURATION: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 267 | ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_SATURATION, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 268 | ctrl->value); |
| 269 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 270 | case V4L2_CID_GAMMA: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 271 | if (camera->version == CAMERA_VERSION_MOOSE) { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 272 | ret = indycam_write_reg(sd, INDYCAM_REG_GAMMA, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 273 | ctrl->value); |
| 274 | } |
| 275 | break; |
| 276 | default: |
| 277 | ret = -EINVAL; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 278 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 279 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 280 | return ret; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 281 | } |
| 282 | |
| 283 | /* I2C-interface */ |
| 284 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 285 | /* ----------------------------------------------------------------------- */ |
| 286 | |
| 287 | static const struct v4l2_subdev_core_ops indycam_core_ops = { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 288 | .g_ctrl = indycam_g_ctrl, |
| 289 | .s_ctrl = indycam_s_ctrl, |
| 290 | }; |
| 291 | |
| 292 | static const struct v4l2_subdev_ops indycam_ops = { |
| 293 | .core = &indycam_core_ops, |
| 294 | }; |
| 295 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 296 | static int indycam_probe(struct i2c_client *client, |
| 297 | const struct i2c_device_id *id) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 298 | { |
| 299 | int err = 0; |
| 300 | struct indycam *camera; |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 301 | struct v4l2_subdev *sd; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 302 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 303 | v4l_info(client, "chip found @ 0x%x (%s)\n", |
| 304 | client->addr << 1, client->adapter->name); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 305 | |
Panagiotis Issaris | 7408187 | 2006-01-11 19:40:56 -0200 | [diff] [blame] | 306 | camera = kzalloc(sizeof(struct indycam), GFP_KERNEL); |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 307 | if (!camera) |
| 308 | return -ENOMEM; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 309 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 310 | sd = &camera->sd; |
| 311 | v4l2_i2c_subdev_init(sd, client, &indycam_ops); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 312 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 313 | camera->version = i2c_smbus_read_byte_data(client, |
| 314 | INDYCAM_REG_VERSION); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 315 | if (camera->version != CAMERA_VERSION_INDY && |
| 316 | camera->version != CAMERA_VERSION_MOOSE) { |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 317 | kfree(camera); |
| 318 | return -ENODEV; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 319 | } |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 320 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 321 | printk(KERN_INFO "IndyCam v%d.%d detected\n", |
| 322 | INDYCAM_VERSION_MAJOR(camera->version), |
| 323 | INDYCAM_VERSION_MINOR(camera->version)); |
| 324 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 325 | indycam_regdump(sd); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 326 | |
| 327 | // initialize |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 328 | err = indycam_write_block(sd, 0, sizeof(initseq), (u8 *)&initseq); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 329 | if (err) { |
Joe Perches | c84e603 | 2008-02-03 17:18:59 +0200 | [diff] [blame] | 330 | printk(KERN_ERR "IndyCam initialization failed\n"); |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 331 | kfree(camera); |
| 332 | return -EIO; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 333 | } |
| 334 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 335 | indycam_regdump(sd); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 336 | |
| 337 | // white balance |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 338 | err = indycam_write_reg(sd, INDYCAM_REG_CONTROL, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 339 | INDYCAM_CONTROL_AGCENA | INDYCAM_CONTROL_AWBCTL); |
| 340 | if (err) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 341 | printk(KERN_ERR "IndyCam: White balancing camera failed\n"); |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 342 | kfree(camera); |
| 343 | return -EIO; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 344 | } |
| 345 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 346 | indycam_regdump(sd); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 347 | |
| 348 | printk(KERN_INFO "IndyCam initialized\n"); |
| 349 | |
| 350 | return 0; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 351 | } |
| 352 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 353 | static int indycam_remove(struct i2c_client *client) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 354 | { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 355 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 356 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 357 | v4l2_device_unregister_subdev(sd); |
| 358 | kfree(to_indycam(sd)); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 359 | return 0; |
| 360 | } |
| 361 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 362 | static const struct i2c_device_id indycam_id[] = { |
| 363 | { "indycam", 0 }, |
| 364 | { } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 365 | }; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 366 | MODULE_DEVICE_TABLE(i2c, indycam_id); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 367 | |
Hans Verkuil | 9f490cd | 2010-09-15 15:17:19 -0300 | [diff] [blame] | 368 | static struct i2c_driver indycam_driver = { |
| 369 | .driver = { |
| 370 | .owner = THIS_MODULE, |
| 371 | .name = "indycam", |
| 372 | }, |
| 373 | .probe = indycam_probe, |
| 374 | .remove = indycam_remove, |
| 375 | .id_table = indycam_id, |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 376 | }; |
Hans Verkuil | 9f490cd | 2010-09-15 15:17:19 -0300 | [diff] [blame] | 377 | |
Axel Lin | c6e8d86 | 2012-02-12 06:56:32 -0300 | [diff] [blame] | 378 | module_i2c_driver(indycam_driver); |