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866b8695 GKH |
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> | |
866b8695 | 20 | #include <linux/i2c.h> |
df20d69e | 21 | #include <linux/videodev2.h> |
866b8695 GKH |
22 | #include <linux/ioctl.h> |
23 | ||
24 | #include "wis-i2c.h" | |
25 | ||
26 | struct wis_saa7115 { | |
27 | int norm; | |
28 | int brightness; | |
29 | int contrast; | |
30 | int saturation; | |
31 | int hue; | |
32 | }; | |
33 | ||
34 | static u8 initial_registers[] = | |
35 | { | |
36 | 0x01, 0x08, | |
37 | 0x02, 0xc0, | |
38 | 0x03, 0x20, | |
39 | 0x04, 0x80, | |
40 | 0x05, 0x80, | |
41 | 0x06, 0xeb, | |
42 | 0x07, 0xe0, | |
43 | 0x08, 0xf0, /* always toggle FID */ | |
44 | 0x09, 0x40, | |
45 | 0x0a, 0x80, | |
46 | 0x0b, 0x40, | |
47 | 0x0c, 0x40, | |
48 | 0x0d, 0x00, | |
49 | 0x0e, 0x03, | |
50 | 0x0f, 0x2a, | |
51 | 0x10, 0x0e, | |
52 | 0x11, 0x00, | |
53 | 0x12, 0x8d, | |
54 | 0x13, 0x00, | |
55 | 0x14, 0x00, | |
56 | 0x15, 0x11, | |
57 | 0x16, 0x01, | |
58 | 0x17, 0xda, | |
59 | 0x18, 0x40, | |
60 | 0x19, 0x80, | |
61 | 0x1a, 0x00, | |
62 | 0x1b, 0x42, | |
63 | 0x1c, 0xa9, | |
64 | 0x30, 0x66, | |
65 | 0x31, 0x90, | |
66 | 0x32, 0x01, | |
67 | 0x34, 0x00, | |
68 | 0x35, 0x00, | |
69 | 0x36, 0x20, | |
70 | 0x38, 0x03, | |
71 | 0x39, 0x20, | |
72 | 0x3a, 0x88, | |
73 | 0x40, 0x00, | |
74 | 0x41, 0xff, | |
75 | 0x42, 0xff, | |
76 | 0x43, 0xff, | |
77 | 0x44, 0xff, | |
78 | 0x45, 0xff, | |
79 | 0x46, 0xff, | |
80 | 0x47, 0xff, | |
81 | 0x48, 0xff, | |
82 | 0x49, 0xff, | |
83 | 0x4a, 0xff, | |
84 | 0x4b, 0xff, | |
85 | 0x4c, 0xff, | |
86 | 0x4d, 0xff, | |
87 | 0x4e, 0xff, | |
88 | 0x4f, 0xff, | |
89 | 0x50, 0xff, | |
90 | 0x51, 0xff, | |
91 | 0x52, 0xff, | |
92 | 0x53, 0xff, | |
93 | 0x54, 0xf4 /*0xff*/, | |
94 | 0x55, 0xff, | |
95 | 0x56, 0xff, | |
96 | 0x57, 0xff, | |
97 | 0x58, 0x40, | |
98 | 0x59, 0x47, | |
99 | 0x5a, 0x06 /*0x03*/, | |
100 | 0x5b, 0x83, | |
101 | 0x5d, 0x06, | |
102 | 0x5e, 0x00, | |
103 | 0x80, 0x30, /* window defined scaler operation, task A and B enabled */ | |
104 | 0x81, 0x03, /* use scaler datapath generated V */ | |
105 | 0x83, 0x00, | |
106 | 0x84, 0x00, | |
107 | 0x85, 0x00, | |
108 | 0x86, 0x45, | |
109 | 0x87, 0x31, | |
110 | 0x88, 0xc0, | |
111 | 0x90, 0x02, /* task A process top field */ | |
112 | 0x91, 0x08, | |
113 | 0x92, 0x09, | |
114 | 0x93, 0x80, | |
115 | 0x94, 0x06, | |
116 | 0x95, 0x00, | |
117 | 0x96, 0xc0, | |
118 | 0x97, 0x02, | |
119 | 0x98, 0x12, | |
120 | 0x99, 0x00, | |
121 | 0x9a, 0xf2, | |
122 | 0x9b, 0x00, | |
123 | 0x9c, 0xd0, | |
124 | 0x9d, 0x02, | |
125 | 0x9e, 0xf2, | |
126 | 0x9f, 0x00, | |
127 | 0xa0, 0x01, | |
128 | 0xa1, 0x01, | |
129 | 0xa2, 0x01, | |
130 | 0xa4, 0x80, | |
131 | 0xa5, 0x40, | |
132 | 0xa6, 0x40, | |
133 | 0xa8, 0x00, | |
134 | 0xa9, 0x04, | |
135 | 0xaa, 0x00, | |
136 | 0xac, 0x00, | |
137 | 0xad, 0x02, | |
138 | 0xae, 0x00, | |
139 | 0xb0, 0x00, | |
140 | 0xb1, 0x04, | |
141 | 0xb2, 0x00, | |
142 | 0xb3, 0x04, | |
143 | 0xb4, 0x00, | |
144 | 0xb8, 0x00, | |
145 | 0xbc, 0x00, | |
146 | 0xc0, 0x03, /* task B process bottom field */ | |
147 | 0xc1, 0x08, | |
148 | 0xc2, 0x09, | |
149 | 0xc3, 0x80, | |
150 | 0xc4, 0x06, | |
151 | 0xc5, 0x00, | |
152 | 0xc6, 0xc0, | |
153 | 0xc7, 0x02, | |
154 | 0xc8, 0x12, | |
155 | 0xc9, 0x00, | |
156 | 0xca, 0xf2, | |
157 | 0xcb, 0x00, | |
158 | 0xcc, 0xd0, | |
159 | 0xcd, 0x02, | |
160 | 0xce, 0xf2, | |
161 | 0xcf, 0x00, | |
162 | 0xd0, 0x01, | |
163 | 0xd1, 0x01, | |
164 | 0xd2, 0x01, | |
165 | 0xd4, 0x80, | |
166 | 0xd5, 0x40, | |
167 | 0xd6, 0x40, | |
168 | 0xd8, 0x00, | |
169 | 0xd9, 0x04, | |
170 | 0xda, 0x00, | |
171 | 0xdc, 0x00, | |
172 | 0xdd, 0x02, | |
173 | 0xde, 0x00, | |
174 | 0xe0, 0x00, | |
175 | 0xe1, 0x04, | |
176 | 0xe2, 0x00, | |
177 | 0xe3, 0x04, | |
178 | 0xe4, 0x00, | |
179 | 0xe8, 0x00, | |
180 | 0x88, 0xf0, /* End of original static list */ | |
181 | 0x00, 0x00, /* Terminator (reg 0x00 is read-only) */ | |
182 | }; | |
183 | ||
184 | static int write_reg(struct i2c_client *client, u8 reg, u8 value) | |
185 | { | |
186 | return i2c_smbus_write_byte_data(client, reg, value); | |
187 | } | |
188 | ||
189 | static int write_regs(struct i2c_client *client, u8 *regs) | |
190 | { | |
191 | int i; | |
192 | ||
193 | for (i = 0; regs[i] != 0x00; i += 2) | |
194 | if (i2c_smbus_write_byte_data(client, regs[i], regs[i + 1]) < 0) | |
195 | return -1; | |
196 | return 0; | |
197 | } | |
198 | ||
199 | static int wis_saa7115_command(struct i2c_client *client, | |
200 | unsigned int cmd, void *arg) | |
201 | { | |
202 | struct wis_saa7115 *dec = i2c_get_clientdata(client); | |
203 | ||
204 | switch (cmd) { | |
df20d69e | 205 | case VIDIOC_S_INPUT: |
866b8695 GKH |
206 | { |
207 | int *input = arg; | |
208 | ||
209 | i2c_smbus_write_byte_data(client, 0x02, 0xC0 | *input); | |
210 | i2c_smbus_write_byte_data(client, 0x09, | |
211 | *input < 6 ? 0x40 : 0xC0); | |
212 | break; | |
213 | } | |
214 | case DECODER_SET_RESOLUTION: | |
215 | { | |
216 | struct video_decoder_resolution *res = arg; | |
217 | /* Course-grained scaler */ | |
218 | int h_integer_scaler = res->width < 704 ? 704 / res->width : 1; | |
219 | /* Fine-grained scaler to take care of remainder */ | |
220 | int h_scaling_increment = (704 / h_integer_scaler) * | |
221 | 1024 / res->width; | |
222 | /* Fine-grained scaler only */ | |
df20d69e | 223 | int v_scaling_increment = (dec->norm & V4L2_STD_NTSC ? |
866b8695 GKH |
224 | 240 : 288) * 1024 / res->height; |
225 | u8 regs[] = { | |
226 | 0x88, 0xc0, | |
227 | 0x9c, res->width & 0xff, | |
228 | 0x9d, res->width >> 8, | |
229 | 0x9e, res->height & 0xff, | |
230 | 0x9f, res->height >> 8, | |
231 | 0xa0, h_integer_scaler, | |
232 | 0xa1, 1, | |
233 | 0xa2, 1, | |
234 | 0xa8, h_scaling_increment & 0xff, | |
235 | 0xa9, h_scaling_increment >> 8, | |
236 | 0xac, (h_scaling_increment / 2) & 0xff, | |
237 | 0xad, (h_scaling_increment / 2) >> 8, | |
238 | 0xb0, v_scaling_increment & 0xff, | |
239 | 0xb1, v_scaling_increment >> 8, | |
240 | 0xb2, v_scaling_increment & 0xff, | |
241 | 0xb3, v_scaling_increment >> 8, | |
242 | 0xcc, res->width & 0xff, | |
243 | 0xcd, res->width >> 8, | |
244 | 0xce, res->height & 0xff, | |
245 | 0xcf, res->height >> 8, | |
246 | 0xd0, h_integer_scaler, | |
247 | 0xd1, 1, | |
248 | 0xd2, 1, | |
249 | 0xd8, h_scaling_increment & 0xff, | |
250 | 0xd9, h_scaling_increment >> 8, | |
251 | 0xdc, (h_scaling_increment / 2) & 0xff, | |
252 | 0xdd, (h_scaling_increment / 2) >> 8, | |
253 | 0xe0, v_scaling_increment & 0xff, | |
254 | 0xe1, v_scaling_increment >> 8, | |
255 | 0xe2, v_scaling_increment & 0xff, | |
256 | 0xe3, v_scaling_increment >> 8, | |
257 | 0x88, 0xf0, | |
258 | 0, 0, | |
259 | }; | |
260 | write_regs(client, regs); | |
261 | break; | |
262 | } | |
df20d69e | 263 | case VIDIOC_S_STD: |
866b8695 | 264 | { |
df20d69e | 265 | v4l2_std_id *input = arg; |
866b8695 GKH |
266 | u8 regs[] = { |
267 | 0x88, 0xc0, | |
df20d69e RC |
268 | 0x98, *input & V4L2_STD_NTSC ? 0x12 : 0x16, |
269 | 0x9a, *input & V4L2_STD_NTSC ? 0xf2 : 0x20, | |
270 | 0x9b, *input & V4L2_STD_NTSC ? 0x00 : 0x01, | |
271 | 0xc8, *input & V4L2_STD_NTSC ? 0x12 : 0x16, | |
272 | 0xca, *input & V4L2_STD_NTSC ? 0xf2 : 0x20, | |
273 | 0xcb, *input & V4L2_STD_NTSC ? 0x00 : 0x01, | |
866b8695 | 274 | 0x88, 0xf0, |
df20d69e RC |
275 | 0x30, *input & V4L2_STD_NTSC ? 0x66 : 0x00, |
276 | 0x31, *input & V4L2_STD_NTSC ? 0x90 : 0xe0, | |
866b8695 GKH |
277 | 0, 0, |
278 | }; | |
279 | write_regs(client, regs); | |
280 | dec->norm = *input; | |
281 | break; | |
282 | } | |
283 | case VIDIOC_QUERYCTRL: | |
284 | { | |
285 | struct v4l2_queryctrl *ctrl = arg; | |
286 | ||
287 | switch (ctrl->id) { | |
288 | case V4L2_CID_BRIGHTNESS: | |
289 | ctrl->type = V4L2_CTRL_TYPE_INTEGER; | |
290 | strncpy(ctrl->name, "Brightness", sizeof(ctrl->name)); | |
291 | ctrl->minimum = 0; | |
292 | ctrl->maximum = 255; | |
293 | ctrl->step = 1; | |
294 | ctrl->default_value = 128; | |
295 | ctrl->flags = 0; | |
296 | break; | |
297 | case V4L2_CID_CONTRAST: | |
298 | ctrl->type = V4L2_CTRL_TYPE_INTEGER; | |
299 | strncpy(ctrl->name, "Contrast", sizeof(ctrl->name)); | |
300 | ctrl->minimum = 0; | |
301 | ctrl->maximum = 127; | |
302 | ctrl->step = 1; | |
303 | ctrl->default_value = 64; | |
304 | ctrl->flags = 0; | |
305 | break; | |
306 | case V4L2_CID_SATURATION: | |
307 | ctrl->type = V4L2_CTRL_TYPE_INTEGER; | |
308 | strncpy(ctrl->name, "Saturation", sizeof(ctrl->name)); | |
309 | ctrl->minimum = 0; | |
310 | ctrl->maximum = 127; | |
311 | ctrl->step = 1; | |
312 | ctrl->default_value = 64; | |
313 | ctrl->flags = 0; | |
314 | break; | |
315 | case V4L2_CID_HUE: | |
316 | ctrl->type = V4L2_CTRL_TYPE_INTEGER; | |
317 | strncpy(ctrl->name, "Hue", sizeof(ctrl->name)); | |
318 | ctrl->minimum = -128; | |
319 | ctrl->maximum = 127; | |
320 | ctrl->step = 1; | |
321 | ctrl->default_value = 0; | |
322 | ctrl->flags = 0; | |
323 | break; | |
324 | } | |
325 | break; | |
326 | } | |
327 | case VIDIOC_S_CTRL: | |
328 | { | |
329 | struct v4l2_control *ctrl = arg; | |
330 | ||
331 | switch (ctrl->id) { | |
332 | case V4L2_CID_BRIGHTNESS: | |
333 | if (ctrl->value > 255) | |
334 | dec->brightness = 255; | |
335 | else if (ctrl->value < 0) | |
336 | dec->brightness = 0; | |
337 | else | |
338 | dec->brightness = ctrl->value; | |
339 | write_reg(client, 0x0a, dec->brightness); | |
340 | break; | |
341 | case V4L2_CID_CONTRAST: | |
342 | if (ctrl->value > 127) | |
343 | dec->contrast = 127; | |
344 | else if (ctrl->value < 0) | |
345 | dec->contrast = 0; | |
346 | else | |
347 | dec->contrast = ctrl->value; | |
348 | write_reg(client, 0x0b, dec->contrast); | |
349 | break; | |
350 | case V4L2_CID_SATURATION: | |
351 | if (ctrl->value > 127) | |
352 | dec->saturation = 127; | |
353 | else if (ctrl->value < 0) | |
354 | dec->saturation = 0; | |
355 | else | |
356 | dec->saturation = ctrl->value; | |
357 | write_reg(client, 0x0c, dec->saturation); | |
358 | break; | |
359 | case V4L2_CID_HUE: | |
360 | if (ctrl->value > 127) | |
361 | dec->hue = 127; | |
362 | else if (ctrl->value < -128) | |
363 | dec->hue = -128; | |
364 | else | |
365 | dec->hue = ctrl->value; | |
366 | write_reg(client, 0x0d, dec->hue); | |
367 | break; | |
368 | } | |
369 | break; | |
370 | } | |
371 | case VIDIOC_G_CTRL: | |
372 | { | |
373 | struct v4l2_control *ctrl = arg; | |
374 | ||
375 | switch (ctrl->id) { | |
376 | case V4L2_CID_BRIGHTNESS: | |
377 | ctrl->value = dec->brightness; | |
378 | break; | |
379 | case V4L2_CID_CONTRAST: | |
380 | ctrl->value = dec->contrast; | |
381 | break; | |
382 | case V4L2_CID_SATURATION: | |
383 | ctrl->value = dec->saturation; | |
384 | break; | |
385 | case V4L2_CID_HUE: | |
386 | ctrl->value = dec->hue; | |
387 | break; | |
388 | } | |
389 | break; | |
390 | } | |
391 | default: | |
392 | break; | |
393 | } | |
394 | return 0; | |
395 | } | |
396 | ||
397 | static struct i2c_driver wis_saa7115_driver; | |
398 | ||
399 | static struct i2c_client wis_saa7115_client_templ = { | |
400 | .name = "SAA7115 (WIS)", | |
401 | .driver = &wis_saa7115_driver, | |
402 | }; | |
403 | ||
404 | static int wis_saa7115_detect(struct i2c_adapter *adapter, int addr, int kind) | |
405 | { | |
406 | struct i2c_client *client; | |
407 | struct wis_saa7115 *dec; | |
408 | ||
409 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
410 | return 0; | |
411 | ||
412 | client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL); | |
413 | if (client == NULL) | |
414 | return -ENOMEM; | |
415 | memcpy(client, &wis_saa7115_client_templ, | |
416 | sizeof(wis_saa7115_client_templ)); | |
417 | client->adapter = adapter; | |
418 | client->addr = addr; | |
419 | ||
420 | dec = kmalloc(sizeof(struct wis_saa7115), GFP_KERNEL); | |
421 | if (dec == NULL) { | |
422 | kfree(client); | |
423 | return -ENOMEM; | |
424 | } | |
df20d69e | 425 | dec->norm = V4L2_STD_NTSC; |
866b8695 GKH |
426 | dec->brightness = 128; |
427 | dec->contrast = 64; | |
428 | dec->saturation = 64; | |
429 | dec->hue = 0; | |
430 | i2c_set_clientdata(client, dec); | |
431 | ||
432 | printk(KERN_DEBUG | |
433 | "wis-saa7115: initializing SAA7115 at address %d on %s\n", | |
434 | addr, adapter->name); | |
435 | ||
436 | if (write_regs(client, initial_registers) < 0) { | |
437 | printk(KERN_ERR | |
438 | "wis-saa7115: error initializing SAA7115\n"); | |
439 | kfree(client); | |
440 | kfree(dec); | |
441 | return 0; | |
442 | } | |
443 | ||
444 | i2c_attach_client(client); | |
445 | return 0; | |
446 | } | |
447 | ||
448 | static int wis_saa7115_detach(struct i2c_client *client) | |
449 | { | |
450 | struct wis_saa7115 *dec = i2c_get_clientdata(client); | |
451 | int r; | |
452 | ||
453 | r = i2c_detach_client(client); | |
454 | if (r < 0) | |
455 | return r; | |
456 | ||
457 | kfree(client); | |
458 | kfree(dec); | |
459 | return 0; | |
460 | } | |
461 | ||
462 | static struct i2c_driver wis_saa7115_driver = { | |
463 | .driver = { | |
464 | .name = "WIS SAA7115 I2C driver", | |
465 | }, | |
466 | .id = I2C_DRIVERID_WIS_SAA7115, | |
467 | .detach_client = wis_saa7115_detach, | |
468 | .command = wis_saa7115_command, | |
469 | }; | |
470 | ||
471 | static int __init wis_saa7115_init(void) | |
472 | { | |
473 | int r; | |
474 | ||
475 | r = i2c_add_driver(&wis_saa7115_driver); | |
476 | if (r < 0) | |
477 | return r; | |
478 | return wis_i2c_add_driver(wis_saa7115_driver.id, wis_saa7115_detect); | |
479 | } | |
480 | ||
481 | static void __exit wis_saa7115_cleanup(void) | |
482 | { | |
483 | wis_i2c_del_driver(wis_saa7115_detect); | |
484 | i2c_del_driver(&wis_saa7115_driver); | |
485 | } | |
486 | ||
487 | module_init(wis_saa7115_init); | |
488 | module_exit(wis_saa7115_cleanup); | |
489 | ||
490 | MODULE_LICENSE("GPL v2"); |