Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /*************************************************************************** |
Luca Risolia | f327ebb | 2007-01-08 10:43:56 -0300 | [diff] [blame] | 2 | * Plug-in for HV7131D image sensor connected to the SN9C1xx PC Camera * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * Controllers * |
| 4 | * * |
Luca Risolia | f327ebb | 2007-01-08 10:43:56 -0300 | [diff] [blame] | 5 | * Copyright (C) 2004-2007 by Luca Risolia <luca.risolia@studio.unibo.it> * |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 as published by * |
| 9 | * the Free Software Foundation; either version 2 of the License, or * |
| 10 | * (at your option) any later version. * |
| 11 | * * |
| 12 | * This program is distributed in the hope that it will be useful, * |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
| 15 | * GNU General Public License for more details. * |
| 16 | * * |
| 17 | * You should have received a copy of the GNU General Public License * |
| 18 | * along with this program; if not, write to the Free Software * |
| 19 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * |
| 20 | ***************************************************************************/ |
| 21 | |
| 22 | #include "sn9c102_sensor.h" |
Hans Verkuil | d45b9b8 | 2008-09-04 03:33:43 -0300 | [diff] [blame] | 23 | #include "sn9c102_devtable.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 24 | |
| 25 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 26 | static int hv7131d_init(struct sn9c102_device* cam) |
| 27 | { |
Trent Piepho | c680dd6 | 2007-04-04 17:11:04 -0300 | [diff] [blame] | 28 | int err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 29 | |
Trent Piepho | c680dd6 | 2007-04-04 17:11:04 -0300 | [diff] [blame] | 30 | err = sn9c102_write_const_regs(cam, {0x00, 0x10}, {0x00, 0x11}, |
| 31 | {0x00, 0x14}, {0x60, 0x17}, |
| 32 | {0x0e, 0x18}, {0xf2, 0x19}); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 33 | |
| 34 | err += sn9c102_i2c_write(cam, 0x01, 0x04); |
| 35 | err += sn9c102_i2c_write(cam, 0x02, 0x00); |
| 36 | err += sn9c102_i2c_write(cam, 0x28, 0x00); |
| 37 | |
| 38 | return err; |
| 39 | } |
| 40 | |
| 41 | |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 42 | static int hv7131d_get_ctrl(struct sn9c102_device* cam, |
| 43 | struct v4l2_control* ctrl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | { |
| 45 | switch (ctrl->id) { |
| 46 | case V4L2_CID_EXPOSURE: |
| 47 | { |
| 48 | int r1 = sn9c102_i2c_read(cam, 0x26), |
| 49 | r2 = sn9c102_i2c_read(cam, 0x27); |
| 50 | if (r1 < 0 || r2 < 0) |
| 51 | return -EIO; |
| 52 | ctrl->value = (r1 << 8) | (r2 & 0xff); |
| 53 | } |
| 54 | return 0; |
| 55 | case V4L2_CID_RED_BALANCE: |
| 56 | if ((ctrl->value = sn9c102_i2c_read(cam, 0x31)) < 0) |
| 57 | return -EIO; |
| 58 | ctrl->value = 0x3f - (ctrl->value & 0x3f); |
| 59 | return 0; |
| 60 | case V4L2_CID_BLUE_BALANCE: |
| 61 | if ((ctrl->value = sn9c102_i2c_read(cam, 0x33)) < 0) |
| 62 | return -EIO; |
| 63 | ctrl->value = 0x3f - (ctrl->value & 0x3f); |
| 64 | return 0; |
| 65 | case SN9C102_V4L2_CID_GREEN_BALANCE: |
| 66 | if ((ctrl->value = sn9c102_i2c_read(cam, 0x32)) < 0) |
| 67 | return -EIO; |
| 68 | ctrl->value = 0x3f - (ctrl->value & 0x3f); |
| 69 | return 0; |
| 70 | case SN9C102_V4L2_CID_RESET_LEVEL: |
| 71 | if ((ctrl->value = sn9c102_i2c_read(cam, 0x30)) < 0) |
| 72 | return -EIO; |
| 73 | ctrl->value &= 0x3f; |
| 74 | return 0; |
| 75 | case SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE: |
| 76 | if ((ctrl->value = sn9c102_i2c_read(cam, 0x34)) < 0) |
| 77 | return -EIO; |
| 78 | ctrl->value &= 0x07; |
| 79 | return 0; |
| 80 | default: |
| 81 | return -EINVAL; |
| 82 | } |
| 83 | } |
| 84 | |
| 85 | |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 86 | static int hv7131d_set_ctrl(struct sn9c102_device* cam, |
| 87 | const struct v4l2_control* ctrl) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 88 | { |
| 89 | int err = 0; |
| 90 | |
| 91 | switch (ctrl->id) { |
| 92 | case V4L2_CID_EXPOSURE: |
| 93 | err += sn9c102_i2c_write(cam, 0x26, ctrl->value >> 8); |
| 94 | err += sn9c102_i2c_write(cam, 0x27, ctrl->value & 0xff); |
| 95 | break; |
| 96 | case V4L2_CID_RED_BALANCE: |
| 97 | err += sn9c102_i2c_write(cam, 0x31, 0x3f - ctrl->value); |
| 98 | break; |
| 99 | case V4L2_CID_BLUE_BALANCE: |
| 100 | err += sn9c102_i2c_write(cam, 0x33, 0x3f - ctrl->value); |
| 101 | break; |
| 102 | case SN9C102_V4L2_CID_GREEN_BALANCE: |
| 103 | err += sn9c102_i2c_write(cam, 0x32, 0x3f - ctrl->value); |
| 104 | break; |
| 105 | case SN9C102_V4L2_CID_RESET_LEVEL: |
| 106 | err += sn9c102_i2c_write(cam, 0x30, ctrl->value); |
| 107 | break; |
| 108 | case SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE: |
| 109 | err += sn9c102_i2c_write(cam, 0x34, ctrl->value); |
| 110 | break; |
| 111 | default: |
| 112 | return -EINVAL; |
| 113 | } |
| 114 | |
| 115 | return err ? -EIO : 0; |
| 116 | } |
| 117 | |
| 118 | |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 119 | static int hv7131d_set_crop(struct sn9c102_device* cam, |
| 120 | const struct v4l2_rect* rect) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | { |
Luca Risolia | f327ebb | 2007-01-08 10:43:56 -0300 | [diff] [blame] | 122 | struct sn9c102_sensor* s = sn9c102_get_sensor(cam); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | int err = 0; |
| 124 | u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 2, |
| 125 | v_start = (u8)(rect->top - s->cropcap.bounds.top) + 2; |
| 126 | |
| 127 | err += sn9c102_write_reg(cam, h_start, 0x12); |
| 128 | err += sn9c102_write_reg(cam, v_start, 0x13); |
| 129 | |
| 130 | return err; |
| 131 | } |
| 132 | |
| 133 | |
Mauro Carvalho Chehab | d56410e | 2006-03-25 09:19:53 -0300 | [diff] [blame] | 134 | static int hv7131d_set_pix_format(struct sn9c102_device* cam, |
| 135 | const struct v4l2_pix_format* pix) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 136 | { |
| 137 | int err = 0; |
| 138 | |
| 139 | if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X) |
| 140 | err += sn9c102_write_reg(cam, 0x42, 0x19); |
| 141 | else |
| 142 | err += sn9c102_write_reg(cam, 0xf2, 0x19); |
| 143 | |
| 144 | return err; |
| 145 | } |
| 146 | |
| 147 | |
Luca Risolia | 480b55c2 | 2007-05-02 10:04:03 -0300 | [diff] [blame] | 148 | static const struct sn9c102_sensor hv7131d = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 149 | .name = "HV7131D", |
| 150 | .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>", |
Luca Risolia | f423b9a | 2007-03-26 16:12:04 -0300 | [diff] [blame] | 151 | .supported_bridge = BRIDGE_SN9C101 | BRIDGE_SN9C102, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 152 | .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE, |
| 153 | .frequency = SN9C102_I2C_100KHZ, |
| 154 | .interface = SN9C102_I2C_2WIRES, |
| 155 | .i2c_slave_id = 0x11, |
| 156 | .init = &hv7131d_init, |
| 157 | .qctrl = { |
| 158 | { |
| 159 | .id = V4L2_CID_EXPOSURE, |
| 160 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 161 | .name = "exposure", |
| 162 | .minimum = 0x0250, |
| 163 | .maximum = 0xffff, |
| 164 | .step = 0x0001, |
| 165 | .default_value = 0x0250, |
| 166 | .flags = 0, |
| 167 | }, |
| 168 | { |
| 169 | .id = V4L2_CID_RED_BALANCE, |
| 170 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 171 | .name = "red balance", |
| 172 | .minimum = 0x00, |
| 173 | .maximum = 0x3f, |
| 174 | .step = 0x01, |
| 175 | .default_value = 0x00, |
| 176 | .flags = 0, |
| 177 | }, |
| 178 | { |
| 179 | .id = V4L2_CID_BLUE_BALANCE, |
| 180 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 181 | .name = "blue balance", |
| 182 | .minimum = 0x00, |
| 183 | .maximum = 0x3f, |
| 184 | .step = 0x01, |
| 185 | .default_value = 0x20, |
| 186 | .flags = 0, |
| 187 | }, |
| 188 | { |
| 189 | .id = SN9C102_V4L2_CID_GREEN_BALANCE, |
| 190 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 191 | .name = "green balance", |
| 192 | .minimum = 0x00, |
| 193 | .maximum = 0x3f, |
| 194 | .step = 0x01, |
| 195 | .default_value = 0x1e, |
| 196 | .flags = 0, |
| 197 | }, |
| 198 | { |
| 199 | .id = SN9C102_V4L2_CID_RESET_LEVEL, |
| 200 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 201 | .name = "reset level", |
| 202 | .minimum = 0x19, |
| 203 | .maximum = 0x3f, |
| 204 | .step = 0x01, |
| 205 | .default_value = 0x30, |
| 206 | .flags = 0, |
| 207 | }, |
| 208 | { |
| 209 | .id = SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE, |
| 210 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 211 | .name = "pixel bias voltage", |
| 212 | .minimum = 0x00, |
| 213 | .maximum = 0x07, |
| 214 | .step = 0x01, |
| 215 | .default_value = 0x02, |
| 216 | .flags = 0, |
| 217 | }, |
| 218 | }, |
| 219 | .get_ctrl = &hv7131d_get_ctrl, |
| 220 | .set_ctrl = &hv7131d_set_ctrl, |
| 221 | .cropcap = { |
| 222 | .bounds = { |
| 223 | .left = 0, |
| 224 | .top = 0, |
| 225 | .width = 640, |
| 226 | .height = 480, |
| 227 | }, |
| 228 | .defrect = { |
| 229 | .left = 0, |
| 230 | .top = 0, |
| 231 | .width = 640, |
| 232 | .height = 480, |
| 233 | }, |
| 234 | }, |
| 235 | .set_crop = &hv7131d_set_crop, |
| 236 | .pix_format = { |
| 237 | .width = 640, |
| 238 | .height = 480, |
| 239 | .pixelformat = V4L2_PIX_FMT_SBGGR8, |
| 240 | .priv = 8, |
| 241 | }, |
| 242 | .set_pix_format = &hv7131d_set_pix_format |
| 243 | }; |
| 244 | |
| 245 | |
| 246 | int sn9c102_probe_hv7131d(struct sn9c102_device* cam) |
| 247 | { |
Trent Piepho | c680dd6 | 2007-04-04 17:11:04 -0300 | [diff] [blame] | 248 | int r0 = 0, r1 = 0, err; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 249 | |
Trent Piepho | c680dd6 | 2007-04-04 17:11:04 -0300 | [diff] [blame] | 250 | err = sn9c102_write_const_regs(cam, {0x01, 0x01}, {0x00, 0x01}, |
| 251 | {0x28, 0x17}); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 252 | |
| 253 | r0 = sn9c102_i2c_try_read(cam, &hv7131d, 0x00); |
| 254 | r1 = sn9c102_i2c_try_read(cam, &hv7131d, 0x01); |
Luca Risolia | 480b55c2 | 2007-05-02 10:04:03 -0300 | [diff] [blame] | 255 | if (err || r0 < 0 || r1 < 0) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 256 | return -EIO; |
| 257 | |
Hans de Goede | f0dbf82 | 2010-03-11 06:12:39 -0300 | [diff] [blame] | 258 | if ((r0 != 0x00 && r0 != 0x01) || r1 != 0x04) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 259 | return -ENODEV; |
| 260 | |
| 261 | sn9c102_attach_sensor(cam, &hv7131d); |
| 262 | |
| 263 | return 0; |
| 264 | } |