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> |
| 26 | #include <media/v4l2-chip-ident.h> |
Hans Verkuil | a0720d3 | 2009-02-18 19:23:43 -0300 | [diff] [blame] | 27 | #include <media/v4l2-i2c-drv.h> |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 28 | |
| 29 | #include "indycam.h" |
| 30 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 31 | #define INDYCAM_MODULE_VERSION "0.0.5" |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 32 | |
| 33 | MODULE_DESCRIPTION("SGI IndyCam driver"); |
| 34 | MODULE_VERSION(INDYCAM_MODULE_VERSION); |
| 35 | MODULE_AUTHOR("Mikael Nousiainen <tmnousia@cc.hut.fi>"); |
| 36 | MODULE_LICENSE("GPL"); |
| 37 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 38 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 39 | // #define INDYCAM_DEBUG |
| 40 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 41 | #ifdef INDYCAM_DEBUG |
| 42 | #define dprintk(x...) printk("IndyCam: " x); |
| 43 | #define indycam_regdump(client) indycam_regdump_debug(client) |
| 44 | #else |
| 45 | #define dprintk(x...) |
| 46 | #define indycam_regdump(client) |
| 47 | #endif |
| 48 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 49 | struct indycam { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 50 | struct v4l2_subdev sd; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 51 | u8 version; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 52 | }; |
| 53 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 54 | static inline struct indycam *to_indycam(struct v4l2_subdev *sd) |
| 55 | { |
| 56 | return container_of(sd, struct indycam, sd); |
| 57 | } |
| 58 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 59 | static const u8 initseq[] = { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 60 | INDYCAM_CONTROL_AGCENA, /* INDYCAM_CONTROL */ |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 61 | INDYCAM_SHUTTER_60, /* INDYCAM_SHUTTER */ |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 62 | INDYCAM_GAIN_DEFAULT, /* INDYCAM_GAIN */ |
| 63 | 0x00, /* INDYCAM_BRIGHTNESS (read-only) */ |
| 64 | INDYCAM_RED_BALANCE_DEFAULT, /* INDYCAM_RED_BALANCE */ |
| 65 | INDYCAM_BLUE_BALANCE_DEFAULT, /* INDYCAM_BLUE_BALANCE */ |
| 66 | INDYCAM_RED_SATURATION_DEFAULT, /* INDYCAM_RED_SATURATION */ |
| 67 | INDYCAM_BLUE_SATURATION_DEFAULT,/* INDYCAM_BLUE_SATURATION */ |
| 68 | }; |
| 69 | |
| 70 | /* IndyCam register handling */ |
| 71 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 72 | 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] | 73 | { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 74 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 75 | int ret; |
| 76 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 77 | if (reg == INDYCAM_REG_RESET) { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 78 | dprintk("indycam_read_reg(): " |
| 79 | "skipping write-only register %d\n", reg); |
| 80 | *value = 0; |
| 81 | return 0; |
| 82 | } |
| 83 | |
| 84 | ret = i2c_smbus_read_byte_data(client, reg); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 85 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 86 | if (ret < 0) { |
| 87 | printk(KERN_ERR "IndyCam: indycam_read_reg(): read failed, " |
| 88 | "register = 0x%02x\n", reg); |
| 89 | return ret; |
| 90 | } |
| 91 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 92 | *value = (u8)ret; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 93 | |
| 94 | return 0; |
| 95 | } |
| 96 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 97 | 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] | 98 | { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 99 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 100 | int err; |
| 101 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 102 | if (reg == INDYCAM_REG_BRIGHTNESS || reg == INDYCAM_REG_VERSION) { |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 103 | dprintk("indycam_write_reg(): " |
| 104 | "skipping read-only register %d\n", reg); |
| 105 | return 0; |
| 106 | } |
| 107 | |
| 108 | dprintk("Writing Reg %d = 0x%02x\n", reg, value); |
| 109 | err = i2c_smbus_write_byte_data(client, reg, value); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 110 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 111 | if (err) { |
| 112 | printk(KERN_ERR "IndyCam: indycam_write_reg(): write failed, " |
| 113 | "register = 0x%02x, value = 0x%02x\n", reg, value); |
| 114 | } |
| 115 | return err; |
| 116 | } |
| 117 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 118 | static int indycam_write_block(struct v4l2_subdev *sd, u8 reg, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 119 | u8 length, u8 *data) |
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 | int i, err; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 122 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 123 | for (i = 0; i < length; i++) { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 124 | err = indycam_write_reg(sd, reg + i, data[i]); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 125 | if (err) |
| 126 | return err; |
| 127 | } |
| 128 | |
| 129 | return 0; |
| 130 | } |
| 131 | |
| 132 | /* Helper functions */ |
| 133 | |
| 134 | #ifdef INDYCAM_DEBUG |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 135 | static void indycam_regdump_debug(struct v4l2_subdev *sd) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 136 | { |
| 137 | int i; |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 138 | u8 val; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 139 | |
| 140 | for (i = 0; i < 9; i++) { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 141 | indycam_read_reg(sd, i, &val); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 142 | dprintk("Reg %d = 0x%02x\n", i, val); |
| 143 | } |
| 144 | } |
| 145 | #endif |
| 146 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 147 | 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] | 148 | { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 149 | struct indycam *camera = to_indycam(sd); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 150 | u8 reg; |
| 151 | int ret = 0; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 152 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 153 | switch (ctrl->id) { |
| 154 | case V4L2_CID_AUTOGAIN: |
| 155 | case V4L2_CID_AUTO_WHITE_BALANCE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 156 | ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, ®); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 157 | if (ret) |
| 158 | return -EIO; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 159 | if (ctrl->id == V4L2_CID_AUTOGAIN) |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 160 | ctrl->value = (reg & INDYCAM_CONTROL_AGCENA) |
| 161 | ? 1 : 0; |
| 162 | else |
| 163 | ctrl->value = (reg & INDYCAM_CONTROL_AWBCTL) |
| 164 | ? 1 : 0; |
| 165 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 166 | case V4L2_CID_EXPOSURE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 167 | ret = indycam_read_reg(sd, INDYCAM_REG_SHUTTER, ®); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 168 | if (ret) |
| 169 | return -EIO; |
| 170 | ctrl->value = ((s32)reg == 0x00) ? 0xff : ((s32)reg - 1); |
| 171 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 172 | case V4L2_CID_GAIN: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 173 | ret = indycam_read_reg(sd, INDYCAM_REG_GAIN, ®); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 174 | if (ret) |
| 175 | return -EIO; |
| 176 | ctrl->value = (s32)reg; |
| 177 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 178 | case V4L2_CID_RED_BALANCE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 179 | ret = indycam_read_reg(sd, INDYCAM_REG_RED_BALANCE, ®); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 180 | if (ret) |
| 181 | return -EIO; |
| 182 | ctrl->value = (s32)reg; |
| 183 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 184 | case V4L2_CID_BLUE_BALANCE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 185 | ret = indycam_read_reg(sd, INDYCAM_REG_BLUE_BALANCE, ®); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 186 | if (ret) |
| 187 | return -EIO; |
| 188 | ctrl->value = (s32)reg; |
| 189 | break; |
| 190 | case INDYCAM_CONTROL_RED_SATURATION: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 191 | ret = indycam_read_reg(sd, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 192 | INDYCAM_REG_RED_SATURATION, ®); |
| 193 | if (ret) |
| 194 | return -EIO; |
| 195 | ctrl->value = (s32)reg; |
| 196 | break; |
| 197 | case INDYCAM_CONTROL_BLUE_SATURATION: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 198 | ret = indycam_read_reg(sd, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 199 | INDYCAM_REG_BLUE_SATURATION, ®); |
| 200 | if (ret) |
| 201 | return -EIO; |
| 202 | ctrl->value = (s32)reg; |
| 203 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 204 | case V4L2_CID_GAMMA: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 205 | if (camera->version == CAMERA_VERSION_MOOSE) { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 206 | ret = indycam_read_reg(sd, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 207 | INDYCAM_REG_GAMMA, ®); |
| 208 | if (ret) |
| 209 | return -EIO; |
| 210 | ctrl->value = (s32)reg; |
| 211 | } else { |
| 212 | ctrl->value = INDYCAM_GAMMA_DEFAULT; |
| 213 | } |
| 214 | break; |
| 215 | default: |
| 216 | ret = -EINVAL; |
| 217 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 218 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 219 | return ret; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 220 | } |
| 221 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 222 | 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] | 223 | { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 224 | struct indycam *camera = to_indycam(sd); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 225 | u8 reg; |
| 226 | int ret = 0; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 227 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 228 | switch (ctrl->id) { |
| 229 | case V4L2_CID_AUTOGAIN: |
| 230 | case V4L2_CID_AUTO_WHITE_BALANCE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 231 | ret = indycam_read_reg(sd, INDYCAM_REG_CONTROL, ®); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 232 | if (ret) |
| 233 | break; |
| 234 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 235 | if (ctrl->id == V4L2_CID_AUTOGAIN) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 236 | if (ctrl->value) |
| 237 | reg |= INDYCAM_CONTROL_AGCENA; |
| 238 | else |
| 239 | reg &= ~INDYCAM_CONTROL_AGCENA; |
| 240 | } else { |
| 241 | if (ctrl->value) |
| 242 | reg |= INDYCAM_CONTROL_AWBCTL; |
| 243 | else |
| 244 | reg &= ~INDYCAM_CONTROL_AWBCTL; |
| 245 | } |
| 246 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 247 | ret = indycam_write_reg(sd, INDYCAM_REG_CONTROL, reg); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 248 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 249 | case V4L2_CID_EXPOSURE: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 250 | reg = (ctrl->value == 0xff) ? 0x00 : (ctrl->value + 1); |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 251 | ret = indycam_write_reg(sd, INDYCAM_REG_SHUTTER, reg); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 252 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 253 | case V4L2_CID_GAIN: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 254 | ret = indycam_write_reg(sd, INDYCAM_REG_GAIN, ctrl->value); |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 255 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 256 | case V4L2_CID_RED_BALANCE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 257 | ret = indycam_write_reg(sd, INDYCAM_REG_RED_BALANCE, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 258 | ctrl->value); |
| 259 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 260 | case V4L2_CID_BLUE_BALANCE: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 261 | ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_BALANCE, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 262 | ctrl->value); |
| 263 | break; |
| 264 | case INDYCAM_CONTROL_RED_SATURATION: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 265 | ret = indycam_write_reg(sd, INDYCAM_REG_RED_SATURATION, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 266 | ctrl->value); |
| 267 | break; |
| 268 | case INDYCAM_CONTROL_BLUE_SATURATION: |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 269 | ret = indycam_write_reg(sd, INDYCAM_REG_BLUE_SATURATION, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 270 | ctrl->value); |
| 271 | break; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 272 | case V4L2_CID_GAMMA: |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 273 | if (camera->version == CAMERA_VERSION_MOOSE) { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 274 | ret = indycam_write_reg(sd, INDYCAM_REG_GAMMA, |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 275 | ctrl->value); |
| 276 | } |
| 277 | break; |
| 278 | default: |
| 279 | ret = -EINVAL; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 280 | } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 281 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 282 | return ret; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 283 | } |
| 284 | |
| 285 | /* I2C-interface */ |
| 286 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 287 | static int indycam_g_chip_ident(struct v4l2_subdev *sd, |
| 288 | struct v4l2_dbg_chip_ident *chip) |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 289 | { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 290 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
| 291 | struct indycam *camera = to_indycam(sd); |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 292 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 293 | return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_INDYCAM, |
| 294 | camera->version); |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 295 | } |
| 296 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 297 | /* ----------------------------------------------------------------------- */ |
| 298 | |
| 299 | static const struct v4l2_subdev_core_ops indycam_core_ops = { |
| 300 | .g_chip_ident = indycam_g_chip_ident, |
| 301 | .g_ctrl = indycam_g_ctrl, |
| 302 | .s_ctrl = indycam_s_ctrl, |
| 303 | }; |
| 304 | |
| 305 | static const struct v4l2_subdev_ops indycam_ops = { |
| 306 | .core = &indycam_core_ops, |
| 307 | }; |
| 308 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 309 | static int indycam_probe(struct i2c_client *client, |
| 310 | const struct i2c_device_id *id) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 311 | { |
| 312 | int err = 0; |
| 313 | struct indycam *camera; |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 314 | struct v4l2_subdev *sd; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 315 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 316 | v4l_info(client, "chip found @ 0x%x (%s)\n", |
| 317 | client->addr << 1, client->adapter->name); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 318 | |
Panagiotis Issaris | 7408187 | 2006-01-11 19:40:56 -0200 | [diff] [blame] | 319 | camera = kzalloc(sizeof(struct indycam), GFP_KERNEL); |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 320 | if (!camera) |
| 321 | return -ENOMEM; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 322 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 323 | sd = &camera->sd; |
| 324 | v4l2_i2c_subdev_init(sd, client, &indycam_ops); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 325 | |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 326 | camera->version = i2c_smbus_read_byte_data(client, |
| 327 | INDYCAM_REG_VERSION); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 328 | if (camera->version != CAMERA_VERSION_INDY && |
| 329 | camera->version != CAMERA_VERSION_MOOSE) { |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 330 | kfree(camera); |
| 331 | return -ENODEV; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 332 | } |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 333 | |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 334 | printk(KERN_INFO "IndyCam v%d.%d detected\n", |
| 335 | INDYCAM_VERSION_MAJOR(camera->version), |
| 336 | INDYCAM_VERSION_MINOR(camera->version)); |
| 337 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 338 | indycam_regdump(sd); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 339 | |
| 340 | // initialize |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 341 | err = indycam_write_block(sd, 0, sizeof(initseq), (u8 *)&initseq); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 342 | if (err) { |
Joe Perches | c84e603 | 2008-02-03 17:18:59 +0200 | [diff] [blame] | 343 | printk(KERN_ERR "IndyCam initialization failed\n"); |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 344 | kfree(camera); |
| 345 | return -EIO; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 346 | } |
| 347 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 348 | indycam_regdump(sd); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 349 | |
| 350 | // white balance |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 351 | err = indycam_write_reg(sd, INDYCAM_REG_CONTROL, |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 352 | INDYCAM_CONTROL_AGCENA | INDYCAM_CONTROL_AWBCTL); |
| 353 | if (err) { |
Ladislav Michl | a637a11 | 2005-09-01 15:07:34 +0000 | [diff] [blame] | 354 | printk(KERN_ERR "IndyCam: White balancing camera failed\n"); |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 355 | kfree(camera); |
| 356 | return -EIO; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 357 | } |
| 358 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 359 | indycam_regdump(sd); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 360 | |
| 361 | printk(KERN_INFO "IndyCam initialized\n"); |
| 362 | |
| 363 | return 0; |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 364 | } |
| 365 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 366 | static int indycam_remove(struct i2c_client *client) |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 367 | { |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 368 | struct v4l2_subdev *sd = i2c_get_clientdata(client); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 369 | |
Hans Verkuil | 2b80a19 | 2009-02-13 19:38:10 -0300 | [diff] [blame] | 370 | v4l2_device_unregister_subdev(sd); |
| 371 | kfree(to_indycam(sd)); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 372 | return 0; |
| 373 | } |
| 374 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 375 | static const struct i2c_device_id indycam_id[] = { |
| 376 | { "indycam", 0 }, |
| 377 | { } |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 378 | }; |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 379 | MODULE_DEVICE_TABLE(i2c, indycam_id); |
Ralf Baechle | d203a7e | 2005-09-06 15:19:37 -0700 | [diff] [blame] | 380 | |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 381 | static struct v4l2_i2c_driver_data v4l2_i2c_data = { |
| 382 | .name = "indycam", |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 383 | .probe = indycam_probe, |
| 384 | .remove = indycam_remove, |
Hans Verkuil | cf4e948 | 2009-02-27 09:05:10 -0300 | [diff] [blame] | 385 | .id_table = indycam_id, |
| 386 | }; |