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1 | /*************************************************************************** |
2 | * Plug-in for PAS202BCA image sensor connected to the SN9C10x PC Camera * | |
3 | * Controllers * | |
4 | * * | |
5 | * Copyright (C) 2006 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 <linux/delay.h> | |
23 | #include "sn9c102_sensor.h" | |
24 | ||
25 | ||
26 | static struct sn9c102_sensor pas202bca; | |
27 | ||
28 | ||
29 | static int pas202bca_init(struct sn9c102_device* cam) | |
30 | { | |
31 | int err = 0; | |
32 | ||
33 | err += sn9c102_write_reg(cam, 0x00, 0x10); | |
34 | err += sn9c102_write_reg(cam, 0x00, 0x11); | |
35 | err += sn9c102_write_reg(cam, 0x00, 0x14); | |
36 | err += sn9c102_write_reg(cam, 0x20, 0x17); | |
37 | err += sn9c102_write_reg(cam, 0x30, 0x19); | |
38 | err += sn9c102_write_reg(cam, 0x09, 0x18); | |
39 | ||
40 | err += sn9c102_i2c_write(cam, 0x02, 0x14); | |
41 | err += sn9c102_i2c_write(cam, 0x03, 0x40); | |
42 | err += sn9c102_i2c_write(cam, 0x0d, 0x2c); | |
43 | err += sn9c102_i2c_write(cam, 0x0e, 0x01); | |
44 | err += sn9c102_i2c_write(cam, 0x0f, 0xa9); | |
45 | err += sn9c102_i2c_write(cam, 0x10, 0x08); | |
46 | err += sn9c102_i2c_write(cam, 0x13, 0x63); | |
47 | err += sn9c102_i2c_write(cam, 0x15, 0x70); | |
48 | err += sn9c102_i2c_write(cam, 0x11, 0x01); | |
49 | ||
50 | msleep(400); | |
51 | ||
52 | return err; | |
53 | } | |
54 | ||
55 | ||
56 | static int pas202bca_set_pix_format(struct sn9c102_device* cam, | |
57 | const struct v4l2_pix_format* pix) | |
58 | { | |
59 | int err = 0; | |
60 | ||
61 | if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X) | |
62 | err += sn9c102_write_reg(cam, 0x24, 0x17); | |
63 | else | |
64 | err += sn9c102_write_reg(cam, 0x20, 0x17); | |
65 | ||
66 | return err; | |
67 | } | |
68 | ||
69 | ||
70 | static int pas202bca_set_ctrl(struct sn9c102_device* cam, | |
71 | const struct v4l2_control* ctrl) | |
72 | { | |
73 | int err = 0; | |
74 | ||
75 | switch (ctrl->id) { | |
76 | case V4L2_CID_EXPOSURE: | |
77 | err += sn9c102_i2c_write(cam, 0x04, ctrl->value >> 6); | |
78 | err += sn9c102_i2c_write(cam, 0x05, ctrl->value & 0x3f); | |
79 | break; | |
80 | case V4L2_CID_RED_BALANCE: | |
81 | err += sn9c102_i2c_write(cam, 0x09, ctrl->value); | |
82 | break; | |
83 | case V4L2_CID_BLUE_BALANCE: | |
84 | err += sn9c102_i2c_write(cam, 0x07, ctrl->value); | |
85 | break; | |
86 | case V4L2_CID_GAIN: | |
87 | err += sn9c102_i2c_write(cam, 0x10, ctrl->value); | |
88 | break; | |
89 | case SN9C102_V4L2_CID_GREEN_BALANCE: | |
90 | err += sn9c102_i2c_write(cam, 0x08, ctrl->value); | |
91 | break; | |
92 | case SN9C102_V4L2_CID_DAC_MAGNITUDE: | |
93 | err += sn9c102_i2c_write(cam, 0x0c, ctrl->value); | |
94 | break; | |
95 | default: | |
96 | return -EINVAL; | |
97 | } | |
98 | err += sn9c102_i2c_write(cam, 0x11, 0x01); | |
99 | ||
100 | return err ? -EIO : 0; | |
101 | } | |
102 | ||
103 | ||
104 | static int pas202bca_set_crop(struct sn9c102_device* cam, | |
105 | const struct v4l2_rect* rect) | |
106 | { | |
107 | struct sn9c102_sensor* s = &pas202bca; | |
108 | int err = 0; | |
109 | u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 3, | |
110 | v_start = (u8)(rect->top - s->cropcap.bounds.top) + 3; | |
111 | ||
112 | err += sn9c102_write_reg(cam, h_start, 0x12); | |
113 | err += sn9c102_write_reg(cam, v_start, 0x13); | |
114 | ||
115 | return err; | |
116 | } | |
117 | ||
118 | ||
119 | static struct sn9c102_sensor pas202bca = { | |
120 | .name = "PAS202BCA", | |
121 | .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>", | |
122 | .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE, | |
123 | .frequency = SN9C102_I2C_400KHZ | SN9C102_I2C_100KHZ, | |
124 | .interface = SN9C102_I2C_2WIRES, | |
125 | .i2c_slave_id = 0x40, | |
126 | .init = &pas202bca_init, | |
127 | .qctrl = { | |
128 | { | |
129 | .id = V4L2_CID_EXPOSURE, | |
130 | .type = V4L2_CTRL_TYPE_INTEGER, | |
131 | .name = "exposure", | |
132 | .minimum = 0x01e5, | |
133 | .maximum = 0x3fff, | |
134 | .step = 0x0001, | |
135 | .default_value = 0x01e5, | |
136 | .flags = 0, | |
137 | }, | |
138 | { | |
139 | .id = V4L2_CID_GAIN, | |
140 | .type = V4L2_CTRL_TYPE_INTEGER, | |
141 | .name = "global gain", | |
142 | .minimum = 0x00, | |
143 | .maximum = 0x1f, | |
144 | .step = 0x01, | |
145 | .default_value = 0x0c, | |
146 | .flags = 0, | |
147 | }, | |
148 | { | |
149 | .id = V4L2_CID_RED_BALANCE, | |
150 | .type = V4L2_CTRL_TYPE_INTEGER, | |
151 | .name = "red balance", | |
152 | .minimum = 0x00, | |
153 | .maximum = 0x0f, | |
154 | .step = 0x01, | |
155 | .default_value = 0x01, | |
156 | .flags = 0, | |
157 | }, | |
158 | { | |
159 | .id = V4L2_CID_BLUE_BALANCE, | |
160 | .type = V4L2_CTRL_TYPE_INTEGER, | |
161 | .name = "blue balance", | |
162 | .minimum = 0x00, | |
163 | .maximum = 0x0f, | |
164 | .step = 0x01, | |
165 | .default_value = 0x05, | |
166 | .flags = 0, | |
167 | }, | |
168 | { | |
169 | .id = SN9C102_V4L2_CID_GREEN_BALANCE, | |
170 | .type = V4L2_CTRL_TYPE_INTEGER, | |
171 | .name = "green balance", | |
172 | .minimum = 0x00, | |
173 | .maximum = 0x0f, | |
174 | .step = 0x01, | |
175 | .default_value = 0x00, | |
176 | .flags = 0, | |
177 | }, | |
178 | { | |
179 | .id = SN9C102_V4L2_CID_DAC_MAGNITUDE, | |
180 | .type = V4L2_CTRL_TYPE_INTEGER, | |
181 | .name = "DAC magnitude", | |
182 | .minimum = 0x00, | |
183 | .maximum = 0xff, | |
184 | .step = 0x01, | |
185 | .default_value = 0x04, | |
186 | .flags = 0, | |
187 | }, | |
188 | }, | |
189 | .set_ctrl = &pas202bca_set_ctrl, | |
190 | .cropcap = { | |
191 | .bounds = { | |
192 | .left = 0, | |
193 | .top = 0, | |
194 | .width = 640, | |
195 | .height = 480, | |
196 | }, | |
197 | .defrect = { | |
198 | .left = 0, | |
199 | .top = 0, | |
200 | .width = 640, | |
201 | .height = 480, | |
202 | }, | |
203 | }, | |
204 | .set_crop = &pas202bca_set_crop, | |
205 | .pix_format = { | |
206 | .width = 640, | |
207 | .height = 480, | |
208 | .pixelformat = V4L2_PIX_FMT_SBGGR8, | |
209 | .priv = 8, | |
210 | }, | |
211 | .set_pix_format = &pas202bca_set_pix_format | |
212 | }; | |
213 | ||
214 | ||
215 | int sn9c102_probe_pas202bca(struct sn9c102_device* cam) | |
216 | { | |
217 | const struct usb_device_id pas202bca_id_table[] = { | |
218 | { USB_DEVICE(0x0c45, 0x60af), }, | |
219 | { } | |
220 | }; | |
221 | int err = 0; | |
222 | ||
223 | if (!sn9c102_match_id(cam,pas202bca_id_table)) | |
224 | return -ENODEV; | |
225 | ||
226 | err += sn9c102_write_reg(cam, 0x01, 0x01); | |
227 | err += sn9c102_write_reg(cam, 0x40, 0x01); | |
228 | err += sn9c102_write_reg(cam, 0x28, 0x17); | |
229 | if (err) | |
230 | return -EIO; | |
231 | ||
232 | if (sn9c102_i2c_try_write(cam, &pas202bca, 0x10, 0)) /* try to write */ | |
233 | return -ENODEV; | |
234 | ||
235 | sn9c102_attach_sensor(cam, &pas202bca); | |
236 | ||
237 | return 0; | |
238 | } |