diff options
Diffstat (limited to 'drivers/staging/media/go7007/wis-tw9903.c')
-rw-r--r-- | drivers/staging/media/go7007/wis-tw9903.c | 341 |
1 files changed, 341 insertions, 0 deletions
diff --git a/drivers/staging/media/go7007/wis-tw9903.c b/drivers/staging/media/go7007/wis-tw9903.c new file mode 100644 index 00000000000..9230f4a8052 --- /dev/null +++ b/drivers/staging/media/go7007/wis-tw9903.c | |||
@@ -0,0 +1,341 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2005-2006 Micronas USA Inc. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify | ||
5 | * it under the terms of the GNU General Public License (Version 2) as | ||
6 | * published by the Free Software Foundation. | ||
7 | * | ||
8 | * This program is distributed in the hope that it will be useful, | ||
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
11 | * GNU General Public License for more details. | ||
12 | * | ||
13 | * You should have received a copy of the GNU General Public License | ||
14 | * along with this program; if not, write to the Free Software Foundation, | ||
15 | * Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. | ||
16 | */ | ||
17 | |||
18 | #include <linux/module.h> | ||
19 | #include <linux/init.h> | ||
20 | #include <linux/i2c.h> | ||
21 | #include <linux/videodev2.h> | ||
22 | #include <linux/ioctl.h> | ||
23 | #include <linux/slab.h> | ||
24 | |||
25 | #include "wis-i2c.h" | ||
26 | |||
27 | struct wis_tw9903 { | ||
28 | int norm; | ||
29 | int brightness; | ||
30 | int contrast; | ||
31 | int hue; | ||
32 | }; | ||
33 | |||
34 | static u8 initial_registers[] = | ||
35 | { | ||
36 | 0x02, 0x44, /* input 1, composite */ | ||
37 | 0x03, 0x92, /* correct digital format */ | ||
38 | 0x04, 0x00, | ||
39 | 0x05, 0x80, /* or 0x00 for PAL */ | ||
40 | 0x06, 0x40, /* second internal current reference */ | ||
41 | 0x07, 0x02, /* window */ | ||
42 | 0x08, 0x14, /* window */ | ||
43 | 0x09, 0xf0, /* window */ | ||
44 | 0x0a, 0x81, /* window */ | ||
45 | 0x0b, 0xd0, /* window */ | ||
46 | 0x0c, 0x8c, | ||
47 | 0x0d, 0x00, /* scaling */ | ||
48 | 0x0e, 0x11, /* scaling */ | ||
49 | 0x0f, 0x00, /* scaling */ | ||
50 | 0x10, 0x00, /* brightness */ | ||
51 | 0x11, 0x60, /* contrast */ | ||
52 | 0x12, 0x01, /* sharpness */ | ||
53 | 0x13, 0x7f, /* U gain */ | ||
54 | 0x14, 0x5a, /* V gain */ | ||
55 | 0x15, 0x00, /* hue */ | ||
56 | 0x16, 0xc3, /* sharpness */ | ||
57 | 0x18, 0x00, | ||
58 | 0x19, 0x58, /* vbi */ | ||
59 | 0x1a, 0x80, | ||
60 | 0x1c, 0x0f, /* video norm */ | ||
61 | 0x1d, 0x7f, /* video norm */ | ||
62 | 0x20, 0xa0, /* clamping gain (working 0x50) */ | ||
63 | 0x21, 0x22, | ||
64 | 0x22, 0xf0, | ||
65 | 0x23, 0xfe, | ||
66 | 0x24, 0x3c, | ||
67 | 0x25, 0x38, | ||
68 | 0x26, 0x44, | ||
69 | 0x27, 0x20, | ||
70 | 0x28, 0x00, | ||
71 | 0x29, 0x15, | ||
72 | 0x2a, 0xa0, | ||
73 | 0x2b, 0x44, | ||
74 | 0x2c, 0x37, | ||
75 | 0x2d, 0x00, | ||
76 | 0x2e, 0xa5, /* burst PLL control (working: a9) */ | ||
77 | 0x2f, 0xe0, /* 0xea is blue test frame -- 0xe0 for normal */ | ||
78 | 0x31, 0x00, | ||
79 | 0x33, 0x22, | ||
80 | 0x34, 0x11, | ||
81 | 0x35, 0x35, | ||
82 | 0x3b, 0x05, | ||
83 | 0x06, 0xc0, /* reset device */ | ||
84 | 0x00, 0x00, /* Terminator (reg 0x00 is read-only) */ | ||
85 | }; | ||
86 | |||
87 | static int write_reg(struct i2c_client *client, u8 reg, u8 value) | ||
88 | { | ||
89 | return i2c_smbus_write_byte_data(client, reg, value); | ||
90 | } | ||
91 | |||
92 | static int write_regs(struct i2c_client *client, u8 *regs) | ||
93 | { | ||
94 | int i; | ||
95 | |||
96 | for (i = 0; regs[i] != 0x00; i += 2) | ||
97 | if (i2c_smbus_write_byte_data(client, regs[i], regs[i + 1]) < 0) | ||
98 | return -1; | ||
99 | return 0; | ||
100 | } | ||
101 | |||
102 | static int wis_tw9903_command(struct i2c_client *client, | ||
103 | unsigned int cmd, void *arg) | ||
104 | { | ||
105 | struct wis_tw9903 *dec = i2c_get_clientdata(client); | ||
106 | |||
107 | switch (cmd) { | ||
108 | case VIDIOC_S_INPUT: | ||
109 | { | ||
110 | int *input = arg; | ||
111 | |||
112 | i2c_smbus_write_byte_data(client, 0x02, 0x40 | (*input << 1)); | ||
113 | break; | ||
114 | } | ||
115 | #if 0 | ||
116 | /* The scaler on this thing seems to be horribly broken */ | ||
117 | case DECODER_SET_RESOLUTION: | ||
118 | { | ||
119 | struct video_decoder_resolution *res = arg; | ||
120 | /*int hscale = 256 * 720 / res->width;*/ | ||
121 | int hscale = 256 * 720 / (res->width - (res->width > 704 ? 0 : 8)); | ||
122 | int vscale = 256 * (dec->norm & V4L2_STD_NTSC ? 240 : 288) | ||
123 | / res->height; | ||
124 | u8 regs[] = { | ||
125 | 0x0d, vscale & 0xff, | ||
126 | 0x0f, hscale & 0xff, | ||
127 | 0x0e, ((vscale & 0xf00) >> 4) | ((hscale & 0xf00) >> 8), | ||
128 | 0x06, 0xc0, /* reset device */ | ||
129 | 0, 0, | ||
130 | }; | ||
131 | printk(KERN_DEBUG "vscale is %04x, hscale is %04x\n", | ||
132 | vscale, hscale); | ||
133 | /*write_regs(client, regs);*/ | ||
134 | break; | ||
135 | } | ||
136 | #endif | ||
137 | case VIDIOC_S_STD: | ||
138 | { | ||
139 | v4l2_std_id *input = arg; | ||
140 | u8 regs[] = { | ||
141 | 0x05, *input & V4L2_STD_NTSC ? 0x80 : 0x00, | ||
142 | 0x07, *input & V4L2_STD_NTSC ? 0x02 : 0x12, | ||
143 | 0x08, *input & V4L2_STD_NTSC ? 0x14 : 0x18, | ||
144 | 0x09, *input & V4L2_STD_NTSC ? 0xf0 : 0x20, | ||
145 | 0, 0, | ||
146 | }; | ||
147 | write_regs(client, regs); | ||
148 | dec->norm = *input; | ||
149 | break; | ||
150 | } | ||
151 | case VIDIOC_QUERYCTRL: | ||
152 | { | ||
153 | struct v4l2_queryctrl *ctrl = arg; | ||
154 | |||
155 | switch (ctrl->id) { | ||
156 | case V4L2_CID_BRIGHTNESS: | ||
157 | ctrl->type = V4L2_CTRL_TYPE_INTEGER; | ||
158 | strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)); | ||
159 | ctrl->minimum = -128; | ||
160 | ctrl->maximum = 127; | ||
161 | ctrl->step = 1; | ||
162 | ctrl->default_value = 0x00; | ||
163 | ctrl->flags = 0; | ||
164 | break; | ||
165 | case V4L2_CID_CONTRAST: | ||
166 | ctrl->type = V4L2_CTRL_TYPE_INTEGER; | ||
167 | strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)); | ||
168 | ctrl->minimum = 0; | ||
169 | ctrl->maximum = 255; | ||
170 | ctrl->step = 1; | ||
171 | ctrl->default_value = 0x60; | ||
172 | ctrl->flags = 0; | ||
173 | break; | ||
174 | #if 0 | ||
175 | /* I don't understand how the Chroma Gain registers work... */ | ||
176 | case V4L2_CID_SATURATION: | ||
177 | ctrl->type = V4L2_CTRL_TYPE_INTEGER; | ||
178 | strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)); | ||
179 | ctrl->minimum = 0; | ||
180 | ctrl->maximum = 127; | ||
181 | ctrl->step = 1; | ||
182 | ctrl->default_value = 64; | ||
183 | ctrl->flags = 0; | ||
184 | break; | ||
185 | #endif | ||
186 | case V4L2_CID_HUE: | ||
187 | ctrl->type = V4L2_CTRL_TYPE_INTEGER; | ||
188 | strncpy(ctrl->name, "Hue", sizeof(ctrl->name)); | ||
189 | ctrl->minimum = -128; | ||
190 | ctrl->maximum = 127; | ||
191 | ctrl->step = 1; | ||
192 | ctrl->default_value = 0; | ||
193 | ctrl->flags = 0; | ||
194 | break; | ||
195 | } | ||
196 | break; | ||
197 | } | ||
198 | case VIDIOC_S_CTRL: | ||
199 | { | ||
200 | struct v4l2_control *ctrl = arg; | ||
201 | |||
202 | switch (ctrl->id) { | ||
203 | case V4L2_CID_BRIGHTNESS: | ||
204 | if (ctrl->value > 127) | ||
205 | dec->brightness = 127; | ||
206 | else if (ctrl->value < -128) | ||
207 | dec->brightness = -128; | ||
208 | else | ||
209 | dec->brightness = ctrl->value; | ||
210 | write_reg(client, 0x10, dec->brightness); | ||
211 | break; | ||
212 | case V4L2_CID_CONTRAST: | ||
213 | if (ctrl->value > 255) | ||
214 | dec->contrast = 255; | ||
215 | else if (ctrl->value < 0) | ||
216 | dec->contrast = 0; | ||
217 | else | ||
218 | dec->contrast = ctrl->value; | ||
219 | write_reg(client, 0x11, dec->contrast); | ||
220 | break; | ||
221 | #if 0 | ||
222 | case V4L2_CID_SATURATION: | ||
223 | if (ctrl->value > 127) | ||
224 | dec->saturation = 127; | ||
225 | else if (ctrl->value < 0) | ||
226 | dec->saturation = 0; | ||
227 | else | ||
228 | dec->saturation = ctrl->value; | ||
229 | /*write_reg(client, 0x0c, dec->saturation);*/ | ||
230 | break; | ||
231 | #endif | ||
232 | case V4L2_CID_HUE: | ||
233 | if (ctrl->value > 127) | ||
234 | dec->hue = 127; | ||
235 | else if (ctrl->value < -128) | ||
236 | dec->hue = -128; | ||
237 | else | ||
238 | dec->hue = ctrl->value; | ||
239 | write_reg(client, 0x15, dec->hue); | ||
240 | break; | ||
241 | } | ||
242 | break; | ||
243 | } | ||
244 | case VIDIOC_G_CTRL: | ||
245 | { | ||
246 | struct v4l2_control *ctrl = arg; | ||
247 | |||
248 | switch (ctrl->id) { | ||
249 | case V4L2_CID_BRIGHTNESS: | ||
250 | ctrl->value = dec->brightness; | ||
251 | break; | ||
252 | case V4L2_CID_CONTRAST: | ||
253 | ctrl->value = dec->contrast; | ||
254 | break; | ||
255 | #if 0 | ||
256 | case V4L2_CID_SATURATION: | ||
257 | ctrl->value = dec->saturation; | ||
258 | break; | ||
259 | #endif | ||
260 | case V4L2_CID_HUE: | ||
261 | ctrl->value = dec->hue; | ||
262 | break; | ||
263 | } | ||
264 | break; | ||
265 | } | ||
266 | default: | ||
267 | break; | ||
268 | } | ||
269 | return 0; | ||
270 | } | ||
271 | |||
272 | static int wis_tw9903_probe(struct i2c_client *client, | ||
273 | const struct i2c_device_id *id) | ||
274 | { | ||
275 | struct i2c_adapter *adapter = client->adapter; | ||
276 | struct wis_tw9903 *dec; | ||
277 | |||
278 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | ||
279 | return -ENODEV; | ||
280 | |||
281 | dec = kmalloc(sizeof(struct wis_tw9903), GFP_KERNEL); | ||
282 | if (dec == NULL) | ||
283 | return -ENOMEM; | ||
284 | |||
285 | dec->norm = V4L2_STD_NTSC; | ||
286 | dec->brightness = 0; | ||
287 | dec->contrast = 0x60; | ||
288 | dec->hue = 0; | ||
289 | i2c_set_clientdata(client, dec); | ||
290 | |||
291 | printk(KERN_DEBUG | ||
292 | "wis-tw9903: initializing TW9903 at address %d on %s\n", | ||
293 | client->addr, adapter->name); | ||
294 | |||
295 | if (write_regs(client, initial_registers) < 0) { | ||
296 | printk(KERN_ERR "wis-tw9903: error initializing TW9903\n"); | ||
297 | kfree(dec); | ||
298 | return -ENODEV; | ||
299 | } | ||
300 | |||
301 | return 0; | ||
302 | } | ||
303 | |||
304 | static int wis_tw9903_remove(struct i2c_client *client) | ||
305 | { | ||
306 | struct wis_tw9903 *dec = i2c_get_clientdata(client); | ||
307 | |||
308 | kfree(dec); | ||
309 | return 0; | ||
310 | } | ||
311 | |||
312 | static const struct i2c_device_id wis_tw9903_id[] = { | ||
313 | { "wis_tw9903", 0 }, | ||
314 | { } | ||
315 | }; | ||
316 | MODULE_DEVICE_TABLE(i2c, wis_tw9903_id); | ||
317 | |||
318 | static struct i2c_driver wis_tw9903_driver = { | ||
319 | .driver = { | ||
320 | .name = "WIS TW9903 I2C driver", | ||
321 | }, | ||
322 | .probe = wis_tw9903_probe, | ||
323 | .remove = wis_tw9903_remove, | ||
324 | .command = wis_tw9903_command, | ||
325 | .id_table = wis_tw9903_id, | ||
326 | }; | ||
327 | |||
328 | static int __init wis_tw9903_init(void) | ||
329 | { | ||
330 | return i2c_add_driver(&wis_tw9903_driver); | ||
331 | } | ||
332 | |||
333 | static void __exit wis_tw9903_cleanup(void) | ||
334 | { | ||
335 | i2c_del_driver(&wis_tw9903_driver); | ||
336 | } | ||
337 | |||
338 | module_init(wis_tw9903_init); | ||
339 | module_exit(wis_tw9903_cleanup); | ||
340 | |||
341 | MODULE_LICENSE("GPL v2"); | ||