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1da177e4 LT |
1 | /*************************************************************************** |
2 | * Plug-in for HV7131D image sensor connected to the SN9C10x PC Camera * | |
3 | * Controllers * | |
4 | * * | |
a966f3e7 | 5 | * Copyright (C) 2004-2006 by Luca Risolia <luca.risolia@studio.unibo.it> * |
1da177e4 LT |
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 hv7131d; | |
26 | ||
27 | ||
28 | static int hv7131d_init(struct sn9c102_device* cam) | |
29 | { | |
30 | int err = 0; | |
31 | ||
32 | err += sn9c102_write_reg(cam, 0x00, 0x10); | |
33 | err += sn9c102_write_reg(cam, 0x00, 0x11); | |
34 | err += sn9c102_write_reg(cam, 0x00, 0x14); | |
35 | err += sn9c102_write_reg(cam, 0x60, 0x17); | |
36 | err += sn9c102_write_reg(cam, 0x0e, 0x18); | |
37 | err += sn9c102_write_reg(cam, 0xf2, 0x19); | |
38 | ||
39 | err += sn9c102_i2c_write(cam, 0x01, 0x04); | |
40 | err += sn9c102_i2c_write(cam, 0x02, 0x00); | |
41 | err += sn9c102_i2c_write(cam, 0x28, 0x00); | |
42 | ||
43 | return err; | |
44 | } | |
45 | ||
46 | ||
47 | static int hv7131d_get_ctrl(struct sn9c102_device* cam, | |
48 | struct v4l2_control* ctrl) | |
49 | { | |
50 | switch (ctrl->id) { | |
51 | case V4L2_CID_EXPOSURE: | |
52 | { | |
53 | int r1 = sn9c102_i2c_read(cam, 0x26), | |
54 | r2 = sn9c102_i2c_read(cam, 0x27); | |
55 | if (r1 < 0 || r2 < 0) | |
56 | return -EIO; | |
57 | ctrl->value = (r1 << 8) | (r2 & 0xff); | |
58 | } | |
59 | return 0; | |
60 | case V4L2_CID_RED_BALANCE: | |
61 | if ((ctrl->value = sn9c102_i2c_read(cam, 0x31)) < 0) | |
62 | return -EIO; | |
63 | ctrl->value = 0x3f - (ctrl->value & 0x3f); | |
64 | return 0; | |
65 | case V4L2_CID_BLUE_BALANCE: | |
66 | if ((ctrl->value = sn9c102_i2c_read(cam, 0x33)) < 0) | |
67 | return -EIO; | |
68 | ctrl->value = 0x3f - (ctrl->value & 0x3f); | |
69 | return 0; | |
70 | case SN9C102_V4L2_CID_GREEN_BALANCE: | |
71 | if ((ctrl->value = sn9c102_i2c_read(cam, 0x32)) < 0) | |
72 | return -EIO; | |
73 | ctrl->value = 0x3f - (ctrl->value & 0x3f); | |
74 | return 0; | |
75 | case SN9C102_V4L2_CID_RESET_LEVEL: | |
76 | if ((ctrl->value = sn9c102_i2c_read(cam, 0x30)) < 0) | |
77 | return -EIO; | |
78 | ctrl->value &= 0x3f; | |
79 | return 0; | |
80 | case SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE: | |
81 | if ((ctrl->value = sn9c102_i2c_read(cam, 0x34)) < 0) | |
82 | return -EIO; | |
83 | ctrl->value &= 0x07; | |
84 | return 0; | |
85 | default: | |
86 | return -EINVAL; | |
87 | } | |
88 | } | |
89 | ||
90 | ||
91 | static int hv7131d_set_ctrl(struct sn9c102_device* cam, | |
92 | const struct v4l2_control* ctrl) | |
93 | { | |
94 | int err = 0; | |
95 | ||
96 | switch (ctrl->id) { | |
97 | case V4L2_CID_EXPOSURE: | |
98 | err += sn9c102_i2c_write(cam, 0x26, ctrl->value >> 8); | |
99 | err += sn9c102_i2c_write(cam, 0x27, ctrl->value & 0xff); | |
100 | break; | |
101 | case V4L2_CID_RED_BALANCE: | |
102 | err += sn9c102_i2c_write(cam, 0x31, 0x3f - ctrl->value); | |
103 | break; | |
104 | case V4L2_CID_BLUE_BALANCE: | |
105 | err += sn9c102_i2c_write(cam, 0x33, 0x3f - ctrl->value); | |
106 | break; | |
107 | case SN9C102_V4L2_CID_GREEN_BALANCE: | |
108 | err += sn9c102_i2c_write(cam, 0x32, 0x3f - ctrl->value); | |
109 | break; | |
110 | case SN9C102_V4L2_CID_RESET_LEVEL: | |
111 | err += sn9c102_i2c_write(cam, 0x30, ctrl->value); | |
112 | break; | |
113 | case SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE: | |
114 | err += sn9c102_i2c_write(cam, 0x34, ctrl->value); | |
115 | break; | |
116 | default: | |
117 | return -EINVAL; | |
118 | } | |
119 | ||
120 | return err ? -EIO : 0; | |
121 | } | |
122 | ||
123 | ||
124 | static int hv7131d_set_crop(struct sn9c102_device* cam, | |
125 | const struct v4l2_rect* rect) | |
126 | { | |
127 | struct sn9c102_sensor* s = &hv7131d; | |
128 | int err = 0; | |
129 | u8 h_start = (u8)(rect->left - s->cropcap.bounds.left) + 2, | |
130 | v_start = (u8)(rect->top - s->cropcap.bounds.top) + 2; | |
131 | ||
132 | err += sn9c102_write_reg(cam, h_start, 0x12); | |
133 | err += sn9c102_write_reg(cam, v_start, 0x13); | |
134 | ||
135 | return err; | |
136 | } | |
137 | ||
138 | ||
139 | static int hv7131d_set_pix_format(struct sn9c102_device* cam, | |
140 | const struct v4l2_pix_format* pix) | |
141 | { | |
142 | int err = 0; | |
143 | ||
144 | if (pix->pixelformat == V4L2_PIX_FMT_SN9C10X) | |
145 | err += sn9c102_write_reg(cam, 0x42, 0x19); | |
146 | else | |
147 | err += sn9c102_write_reg(cam, 0xf2, 0x19); | |
148 | ||
149 | return err; | |
150 | } | |
151 | ||
152 | ||
153 | static struct sn9c102_sensor hv7131d = { | |
154 | .name = "HV7131D", | |
155 | .maintainer = "Luca Risolia <luca.risolia@studio.unibo.it>", | |
156 | .sysfs_ops = SN9C102_I2C_READ | SN9C102_I2C_WRITE, | |
157 | .frequency = SN9C102_I2C_100KHZ, | |
158 | .interface = SN9C102_I2C_2WIRES, | |
159 | .i2c_slave_id = 0x11, | |
160 | .init = &hv7131d_init, | |
161 | .qctrl = { | |
162 | { | |
163 | .id = V4L2_CID_EXPOSURE, | |
164 | .type = V4L2_CTRL_TYPE_INTEGER, | |
165 | .name = "exposure", | |
166 | .minimum = 0x0250, | |
167 | .maximum = 0xffff, | |
168 | .step = 0x0001, | |
169 | .default_value = 0x0250, | |
170 | .flags = 0, | |
171 | }, | |
172 | { | |
173 | .id = V4L2_CID_RED_BALANCE, | |
174 | .type = V4L2_CTRL_TYPE_INTEGER, | |
175 | .name = "red balance", | |
176 | .minimum = 0x00, | |
177 | .maximum = 0x3f, | |
178 | .step = 0x01, | |
179 | .default_value = 0x00, | |
180 | .flags = 0, | |
181 | }, | |
182 | { | |
183 | .id = V4L2_CID_BLUE_BALANCE, | |
184 | .type = V4L2_CTRL_TYPE_INTEGER, | |
185 | .name = "blue balance", | |
186 | .minimum = 0x00, | |
187 | .maximum = 0x3f, | |
188 | .step = 0x01, | |
189 | .default_value = 0x20, | |
190 | .flags = 0, | |
191 | }, | |
192 | { | |
193 | .id = SN9C102_V4L2_CID_GREEN_BALANCE, | |
194 | .type = V4L2_CTRL_TYPE_INTEGER, | |
195 | .name = "green balance", | |
196 | .minimum = 0x00, | |
197 | .maximum = 0x3f, | |
198 | .step = 0x01, | |
199 | .default_value = 0x1e, | |
200 | .flags = 0, | |
201 | }, | |
202 | { | |
203 | .id = SN9C102_V4L2_CID_RESET_LEVEL, | |
204 | .type = V4L2_CTRL_TYPE_INTEGER, | |
205 | .name = "reset level", | |
206 | .minimum = 0x19, | |
207 | .maximum = 0x3f, | |
208 | .step = 0x01, | |
209 | .default_value = 0x30, | |
210 | .flags = 0, | |
211 | }, | |
212 | { | |
213 | .id = SN9C102_V4L2_CID_PIXEL_BIAS_VOLTAGE, | |
214 | .type = V4L2_CTRL_TYPE_INTEGER, | |
215 | .name = "pixel bias voltage", | |
216 | .minimum = 0x00, | |
217 | .maximum = 0x07, | |
218 | .step = 0x01, | |
219 | .default_value = 0x02, | |
220 | .flags = 0, | |
221 | }, | |
222 | }, | |
223 | .get_ctrl = &hv7131d_get_ctrl, | |
224 | .set_ctrl = &hv7131d_set_ctrl, | |
225 | .cropcap = { | |
226 | .bounds = { | |
227 | .left = 0, | |
228 | .top = 0, | |
229 | .width = 640, | |
230 | .height = 480, | |
231 | }, | |
232 | .defrect = { | |
233 | .left = 0, | |
234 | .top = 0, | |
235 | .width = 640, | |
236 | .height = 480, | |
237 | }, | |
238 | }, | |
239 | .set_crop = &hv7131d_set_crop, | |
240 | .pix_format = { | |
241 | .width = 640, | |
242 | .height = 480, | |
243 | .pixelformat = V4L2_PIX_FMT_SBGGR8, | |
244 | .priv = 8, | |
245 | }, | |
246 | .set_pix_format = &hv7131d_set_pix_format | |
247 | }; | |
248 | ||
249 | ||
250 | int sn9c102_probe_hv7131d(struct sn9c102_device* cam) | |
251 | { | |
252 | int r0 = 0, r1 = 0, err = 0; | |
253 | ||
254 | err += sn9c102_write_reg(cam, 0x01, 0x01); | |
255 | err += sn9c102_write_reg(cam, 0x00, 0x01); | |
256 | err += sn9c102_write_reg(cam, 0x28, 0x17); | |
257 | if (err) | |
258 | return -EIO; | |
259 | ||
260 | r0 = sn9c102_i2c_try_read(cam, &hv7131d, 0x00); | |
261 | r1 = sn9c102_i2c_try_read(cam, &hv7131d, 0x01); | |
262 | if (r0 < 0 || r1 < 0) | |
263 | return -EIO; | |
264 | ||
265 | if (r0 != 0x00 && r1 != 0x04) | |
266 | return -ENODEV; | |
267 | ||
268 | sn9c102_attach_sensor(cam, &hv7131d); | |
269 | ||
270 | return 0; | |
271 | } |