Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /*************************************************************************** |
| 2 | * Plug-in for TAS5110C1B image sensor connected to the SN9C10x PC Camera * |
| 3 | * Controllers * |
| 4 | * * |
| 5 | * Copyright (C) 2004-2005 by Luca Risolia <luca.risolia@studio.unibo.it> * |
| 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" |
| 23 | |
| 24 | |
| 25 | static struct sn9c102_sensor tas5110c1b; |
| 26 | |
| 27 | static struct v4l2_control tas5110c1b_gain; |
| 28 | |
| 29 | |
| 30 | static int tas5110c1b_init(struct sn9c102_device* cam) |
| 31 | { |
| 32 | int err = 0; |
| 33 | |
| 34 | err += sn9c102_write_reg(cam, 0x01, 0x01); |
| 35 | err += sn9c102_write_reg(cam, 0x44, 0x01); |
| 36 | err += sn9c102_write_reg(cam, 0x00, 0x10); |
| 37 | err += sn9c102_write_reg(cam, 0x00, 0x11); |
| 38 | err += sn9c102_write_reg(cam, 0x0a, 0x14); |
| 39 | err += sn9c102_write_reg(cam, 0x60, 0x17); |
| 40 | err += sn9c102_write_reg(cam, 0x06, 0x18); |
| 41 | err += sn9c102_write_reg(cam, 0xfb, 0x19); |
| 42 | |
| 43 | err += sn9c102_i2c_write(cam, 0xc0, 0x80); |
| 44 | |
| 45 | return err; |
| 46 | } |
| 47 | |
| 48 | |
| 49 | static int tas5110c1b_get_ctrl(struct sn9c102_device* cam, |
| 50 | struct v4l2_control* ctrl) |
| 51 | { |
| 52 | switch (ctrl->id) { |
| 53 | case V4L2_CID_GAIN: |
| 54 | ctrl->value = tas5110c1b_gain.value; |
| 55 | break; |
| 56 | default: |
| 57 | return -EINVAL; |
| 58 | } |
| 59 | |
| 60 | return 0; |
| 61 | } |
| 62 | |
| 63 | |
| 64 | static int tas5110c1b_set_ctrl(struct sn9c102_device* cam, |
| 65 | const struct v4l2_control* ctrl) |
| 66 | { |
| 67 | int err = 0; |
| 68 | |
| 69 | switch (ctrl->id) { |
| 70 | case V4L2_CID_GAIN: |
| 71 | if (!(err += sn9c102_i2c_write(cam, 0x20, 0xf6 - ctrl->value))) |
| 72 | tas5110c1b_gain.value = ctrl->value; |
| 73 | break; |
| 74 | default: |
| 75 | return -EINVAL; |
| 76 | } |
| 77 | |
| 78 | return err ? -EIO : 0; |
| 79 | } |
| 80 | |
| 81 | |
| 82 | static int tas5110c1b_set_crop(struct sn9c102_device* cam, |
| 83 | const struct v4l2_rect* rect) |
| 84 | { |
| 85 | struct sn9c102_sensor* s = &tas5110c1b; |
| 86 | int err = 0; |
| 87 | u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 69, |
| 88 | v_start = (u8)(rect->top - s->cropcap.bounds.top) + 9; |
| 89 | |
| 90 | err += sn9c102_write_reg(cam, h_start, 0x12); |
| 91 | err += sn9c102_write_reg(cam, v_start, 0x13); |
| 92 | |
| 93 | /* Don't change ! */ |
| 94 | err += sn9c102_write_reg(cam, 0x14, 0x1a); |
| 95 | err += sn9c102_write_reg(cam, 0x0a, 0x1b); |
| 96 | err += sn9c102_write_reg(cam, sn9c102_pread_reg(cam, 0x19), 0x19); |
| 97 | |
| 98 | return err; |
| 99 | } |
| 100 | |
| 101 | |
| 102 | static int tas5110c1b_set_pix_format(struct sn9c102_device* cam, |
| 103 | const struct v4l2_pix_format* pix) |
| 104 | { |
| 105 | int err = 0; |
| 106 | |
| 107 | if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X) |
| 108 | err += sn9c102_write_reg(cam, 0x2b, 0x19); |
| 109 | else |
| 110 | err += sn9c102_write_reg(cam, 0xfb, 0x19); |
| 111 | |
| 112 | return err; |
| 113 | } |
| 114 | |
| 115 | |
| 116 | static struct sn9c102_sensor tas5110c1b = { |
| 117 | .name = "TAS5110C1B", |
| 118 | .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>", |
| 119 | .sysfs_ops = SN9C102_I2C_WRITE, |
| 120 | .frequency = SN9C102_I2C_100KHZ, |
| 121 | .interface = SN9C102_I2C_3WIRES, |
| 122 | .init = &tas5110c1b_init, |
| 123 | .qctrl = { |
| 124 | { |
| 125 | .id = V4L2_CID_GAIN, |
| 126 | .type = V4L2_CTRL_TYPE_INTEGER, |
| 127 | .name = "global gain", |
| 128 | .minimum = 0x00, |
| 129 | .maximum = 0xf6, |
| 130 | .step = 0x01, |
| 131 | .default_value = 0x40, |
| 132 | .flags = 0, |
| 133 | }, |
| 134 | }, |
| 135 | .set_ctrl = &tas5110c1b_set_ctrl, |
| 136 | .cropcap = { |
| 137 | .bounds = { |
| 138 | .left = 0, |
| 139 | .top = 0, |
| 140 | .width = 352, |
| 141 | .height = 288, |
| 142 | }, |
| 143 | .defrect = { |
| 144 | .left = 0, |
| 145 | .top = 0, |
| 146 | .width = 352, |
| 147 | .height = 288, |
| 148 | }, |
| 149 | }, |
| 150 | .get_ctrl = &tas5110c1b_get_ctrl, |
| 151 | .set_crop = &tas5110c1b_set_crop, |
| 152 | .pix_format = { |
| 153 | .width = 352, |
| 154 | .height = 288, |
| 155 | .pixelformat = V4L2_PIX_FMT_SBGGR8, |
| 156 | .priv = 8, |
| 157 | }, |
| 158 | .set_pix_format = &tas5110c1b_set_pix_format |
| 159 | }; |
| 160 | |
| 161 | |
| 162 | int sn9c102_probe_tas5110c1b(struct sn9c102_device* cam) |
| 163 | { |
| 164 | /* This sensor has no identifiers, so let's attach it anyway */ |
| 165 | sn9c102_attach_sensor(cam, &tas5110c1b); |
| 166 | |
| 167 | /* Sensor detection is based on USB pid/vid */ |
| 168 | if (le16_to_cpu(tas5110c1b.usbdev->descriptor.idProduct) != 0x6001 && |
| 169 | le16_to_cpu(tas5110c1b.usbdev->descriptor.idProduct) != 0x6005 && |
| 170 | le16_to_cpu(tas5110c1b.usbdev->descriptor.idProduct) != 0x60ab) |
| 171 | return -ENODEV; |
| 172 | |
| 173 | return 0; |
| 174 | } |