Commit | Line | Data |
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7dfba00d MCC |
1 | /* |
2 | * mt9v011 -Micron 1/4-Inch VGA Digital Image Sensor | |
3 | * | |
4 | * Copyright (c) 2009 Mauro Carvalho Chehab (mchehab@redhat.com) | |
5 | * This code is placed under the terms of the GNU General Public License v2 | |
6 | */ | |
7 | ||
8 | #include <linux/i2c.h> | |
9 | #include <linux/videodev2.h> | |
10 | #include <linux/delay.h> | |
e11206e6 | 11 | #include <asm/div64.h> |
7dfba00d MCC |
12 | #include <media/v4l2-device.h> |
13 | #include "mt9v011.h" | |
14 | #include <media/v4l2-i2c-drv.h> | |
15 | #include <media/v4l2-chip-ident.h> | |
16 | ||
17 | MODULE_DESCRIPTION("Micron mt9v011 sensor driver"); | |
18 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>"); | |
19 | MODULE_LICENSE("GPL"); | |
20 | ||
21 | ||
22 | static int debug; | |
23 | module_param(debug, int, 0); | |
24 | MODULE_PARM_DESC(debug, "Debug level (0-2)"); | |
25 | ||
26 | /* supported controls */ | |
27 | static struct v4l2_queryctrl mt9v011_qctrl[] = { | |
28 | { | |
29 | .id = V4L2_CID_GAIN, | |
30 | .type = V4L2_CTRL_TYPE_INTEGER, | |
31 | .name = "Gain", | |
32 | .minimum = 0, | |
33 | .maximum = (1 << 10) - 1, | |
34 | .step = 1, | |
35 | .default_value = 0x0020, | |
36 | .flags = 0, | |
37 | }, { | |
38 | .id = V4L2_CID_RED_BALANCE, | |
39 | .type = V4L2_CTRL_TYPE_INTEGER, | |
40 | .name = "Red Balance", | |
41 | .minimum = -1 << 9, | |
42 | .maximum = (1 << 9) - 1, | |
43 | .step = 1, | |
44 | .default_value = 0, | |
45 | .flags = 0, | |
46 | }, { | |
47 | .id = V4L2_CID_BLUE_BALANCE, | |
48 | .type = V4L2_CTRL_TYPE_INTEGER, | |
49 | .name = "Blue Balance", | |
50 | .minimum = -1 << 9, | |
51 | .maximum = (1 << 9) - 1, | |
52 | .step = 1, | |
53 | .default_value = 0, | |
54 | .flags = 0, | |
2526ea6e MCC |
55 | }, { |
56 | .id = V4L2_CID_HFLIP, | |
57 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
58 | .name = "Mirror", | |
59 | .minimum = 0, | |
60 | .maximum = 1, | |
61 | .step = 1, | |
62 | .default_value = 0, | |
63 | .flags = 0, | |
64 | }, { | |
65 | .id = V4L2_CID_VFLIP, | |
66 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
67 | .name = "Vflip", | |
68 | .minimum = 0, | |
69 | .maximum = 1, | |
70 | .step = 1, | |
71 | .default_value = 0, | |
72 | .flags = 0, | |
73 | }, { | |
74 | } | |
7dfba00d MCC |
75 | }; |
76 | ||
77 | struct mt9v011 { | |
78 | struct v4l2_subdev sd; | |
27fe4a30 | 79 | unsigned width, height; |
e11206e6 | 80 | unsigned xtal; |
2526ea6e MCC |
81 | unsigned hflip:1; |
82 | unsigned vflip:1; | |
7dfba00d MCC |
83 | |
84 | u16 global_gain, red_bal, blue_bal; | |
85 | }; | |
86 | ||
87 | static inline struct mt9v011 *to_mt9v011(struct v4l2_subdev *sd) | |
88 | { | |
89 | return container_of(sd, struct mt9v011, sd); | |
90 | } | |
91 | ||
92 | static int mt9v011_read(struct v4l2_subdev *sd, unsigned char addr) | |
93 | { | |
94 | struct i2c_client *c = v4l2_get_subdevdata(sd); | |
95 | __be16 buffer; | |
96 | int rc, val; | |
97 | ||
fbe2800c MCC |
98 | rc = i2c_master_send(c, &addr, 1); |
99 | if (rc != 1) | |
7dfba00d MCC |
100 | v4l2_dbg(0, debug, sd, |
101 | "i2c i/o error: rc == %d (should be 1)\n", rc); | |
102 | ||
103 | msleep(10); | |
104 | ||
fbe2800c MCC |
105 | rc = i2c_master_recv(c, (char *)&buffer, 2); |
106 | if (rc != 2) | |
7dfba00d | 107 | v4l2_dbg(0, debug, sd, |
fbe2800c | 108 | "i2c i/o error: rc == %d (should be 2)\n", rc); |
7dfba00d MCC |
109 | |
110 | val = be16_to_cpu(buffer); | |
111 | ||
112 | v4l2_dbg(2, debug, sd, "mt9v011: read 0x%02x = 0x%04x\n", addr, val); | |
113 | ||
114 | return val; | |
115 | } | |
116 | ||
117 | static void mt9v011_write(struct v4l2_subdev *sd, unsigned char addr, | |
118 | u16 value) | |
119 | { | |
120 | struct i2c_client *c = v4l2_get_subdevdata(sd); | |
121 | unsigned char buffer[3]; | |
122 | int rc; | |
123 | ||
124 | buffer[0] = addr; | |
125 | buffer[1] = value >> 8; | |
126 | buffer[2] = value & 0xff; | |
127 | ||
128 | v4l2_dbg(2, debug, sd, | |
129 | "mt9v011: writing 0x%02x 0x%04x\n", buffer[0], value); | |
27fe4a30 | 130 | rc = i2c_master_send(c, buffer, 3); |
fbe2800c | 131 | if (rc != 3) |
7dfba00d MCC |
132 | v4l2_dbg(0, debug, sd, |
133 | "i2c i/o error: rc == %d (should be 3)\n", rc); | |
134 | } | |
135 | ||
136 | ||
137 | struct i2c_reg_value { | |
138 | unsigned char reg; | |
139 | u16 value; | |
140 | }; | |
141 | ||
142 | /* | |
143 | * Values used at the original driver | |
144 | * Some values are marked as Reserved at the datasheet | |
145 | */ | |
146 | static const struct i2c_reg_value mt9v011_init_default[] = { | |
7dfba00d MCC |
147 | { R0D_MT9V011_RESET, 0x0001 }, |
148 | { R0D_MT9V011_RESET, 0x0000 }, | |
afe09f82 | 149 | |
afe09f82 | 150 | { R0C_MT9V011_SHUTTER_DELAY, 0x0000 }, |
6934e6ff MCC |
151 | { R09_MT9V011_SHUTTER_WIDTH, 0x1fc }, |
152 | ||
153 | { R0A_MT9V011_CLK_SPEED, 0x0000 }, | |
afe09f82 | 154 | { R1E_MT9V011_DIGITAL_ZOOM, 0x0000 }, |
afe09f82 | 155 | |
e11206e6 | 156 | { R07_MT9V011_OUT_CTRL, 0x0002 }, /* chip enable */ |
7dfba00d MCC |
157 | }; |
158 | ||
159 | static void set_balance(struct v4l2_subdev *sd) | |
160 | { | |
161 | struct mt9v011 *core = to_mt9v011(sd); | |
162 | u16 green1_gain, green2_gain, blue_gain, red_gain; | |
163 | ||
164 | green1_gain = core->global_gain; | |
165 | green2_gain = core->global_gain; | |
166 | ||
167 | blue_gain = core->global_gain + | |
168 | core->global_gain * core->blue_bal / (1 << 9); | |
169 | ||
170 | red_gain = core->global_gain + | |
171 | core->global_gain * core->blue_bal / (1 << 9); | |
172 | ||
173 | mt9v011_write(sd, R2B_MT9V011_GREEN_1_GAIN, green1_gain); | |
174 | mt9v011_write(sd, R2E_MT9V011_GREEN_2_GAIN, green1_gain); | |
175 | mt9v011_write(sd, R2C_MT9V011_BLUE_GAIN, blue_gain); | |
176 | mt9v011_write(sd, R2D_MT9V011_RED_GAIN, red_gain); | |
177 | } | |
178 | ||
83053f7f | 179 | static void calc_fps(struct v4l2_subdev *sd, u32 *numerator, u32 *denominator) |
e11206e6 MCC |
180 | { |
181 | struct mt9v011 *core = to_mt9v011(sd); | |
182 | unsigned height, width, hblank, vblank, speed; | |
183 | unsigned row_time, t_time; | |
184 | u64 frames_per_ms; | |
185 | unsigned tmp; | |
186 | ||
187 | height = mt9v011_read(sd, R03_MT9V011_HEIGHT); | |
188 | width = mt9v011_read(sd, R04_MT9V011_WIDTH); | |
189 | hblank = mt9v011_read(sd, R05_MT9V011_HBLANK); | |
190 | vblank = mt9v011_read(sd, R06_MT9V011_VBLANK); | |
191 | speed = mt9v011_read(sd, R0A_MT9V011_CLK_SPEED); | |
192 | ||
193 | row_time = (width + 113 + hblank) * (speed + 2); | |
194 | t_time = row_time * (height + vblank + 1); | |
195 | ||
196 | frames_per_ms = core->xtal * 1000l; | |
197 | do_div(frames_per_ms, t_time); | |
198 | tmp = frames_per_ms; | |
199 | ||
200 | v4l2_dbg(1, debug, sd, "Programmed to %u.%03u fps (%d pixel clcks)\n", | |
201 | tmp / 1000, tmp % 1000, t_time); | |
83053f7f MCC |
202 | |
203 | if (numerator && denominator) { | |
204 | *numerator = 1000; | |
205 | *denominator = (u32)frames_per_ms; | |
206 | } | |
207 | } | |
208 | ||
209 | static u16 calc_speed(struct v4l2_subdev *sd, u32 numerator, u32 denominator) | |
210 | { | |
211 | struct mt9v011 *core = to_mt9v011(sd); | |
212 | unsigned height, width, hblank, vblank; | |
213 | unsigned row_time, line_time; | |
214 | u64 t_time, speed; | |
215 | ||
216 | /* Avoid bogus calculus */ | |
217 | if (!numerator || !denominator) | |
218 | return 0; | |
219 | ||
220 | height = mt9v011_read(sd, R03_MT9V011_HEIGHT); | |
221 | width = mt9v011_read(sd, R04_MT9V011_WIDTH); | |
222 | hblank = mt9v011_read(sd, R05_MT9V011_HBLANK); | |
223 | vblank = mt9v011_read(sd, R06_MT9V011_VBLANK); | |
224 | ||
225 | row_time = width + 113 + hblank; | |
226 | line_time = height + vblank + 1; | |
227 | ||
228 | t_time = core->xtal * ((u64)numerator); | |
229 | /* round to the closest value */ | |
230 | t_time += denominator / 2; | |
231 | do_div(t_time, denominator); | |
232 | ||
233 | speed = t_time; | |
234 | do_div(speed, row_time * line_time); | |
235 | ||
236 | /* Avoid having a negative value for speed */ | |
237 | if (speed < 2) | |
238 | speed = 0; | |
239 | else | |
240 | speed -= 2; | |
241 | ||
242 | /* Avoid speed overflow */ | |
243 | if (speed > 15) | |
244 | return 15; | |
245 | ||
246 | return (u16)speed; | |
e11206e6 MCC |
247 | } |
248 | ||
27fe4a30 MCC |
249 | static void set_res(struct v4l2_subdev *sd) |
250 | { | |
251 | struct mt9v011 *core = to_mt9v011(sd); | |
252 | unsigned vstart, hstart; | |
253 | ||
254 | /* | |
255 | * The mt9v011 doesn't have scaling. So, in order to select the desired | |
256 | * resolution, we're cropping at the middle of the sensor. | |
257 | * hblank and vblank should be adjusted, in order to warrant that | |
258 | * we'll preserve the line timings for 30 fps, no matter what resolution | |
259 | * is selected. | |
6934e6ff MCC |
260 | * NOTE: datasheet says that width (and height) should be filled with |
261 | * width-1. However, this doesn't work, since one pixel per line will | |
262 | * be missing. | |
27fe4a30 MCC |
263 | */ |
264 | ||
265 | hstart = 14 + (640 - core->width) / 2; | |
266 | mt9v011_write(sd, R02_MT9V011_COLSTART, hstart); | |
267 | mt9v011_write(sd, R04_MT9V011_WIDTH, core->width); | |
268 | mt9v011_write(sd, R05_MT9V011_HBLANK, 771 - core->width); | |
269 | ||
c180604a | 270 | vstart = 8 + (480 - core->height) / 2; |
27fe4a30 MCC |
271 | mt9v011_write(sd, R01_MT9V011_ROWSTART, vstart); |
272 | mt9v011_write(sd, R03_MT9V011_HEIGHT, core->height); | |
273 | mt9v011_write(sd, R06_MT9V011_VBLANK, 508 - core->height); | |
e11206e6 | 274 | |
83053f7f | 275 | calc_fps(sd, NULL, NULL); |
27fe4a30 MCC |
276 | }; |
277 | ||
2526ea6e MCC |
278 | static void set_read_mode(struct v4l2_subdev *sd) |
279 | { | |
280 | struct mt9v011 *core = to_mt9v011(sd); | |
281 | unsigned mode = 0x1000; | |
282 | ||
283 | if (core->hflip) | |
284 | mode |= 0x4000; | |
285 | ||
286 | if (core->vflip) | |
287 | mode |= 0x8000; | |
288 | ||
289 | mt9v011_write(sd, R20_MT9V011_READ_MODE, mode); | |
290 | } | |
291 | ||
7dfba00d MCC |
292 | static int mt9v011_reset(struct v4l2_subdev *sd, u32 val) |
293 | { | |
7dfba00d MCC |
294 | int i; |
295 | ||
7dfba00d MCC |
296 | for (i = 0; i < ARRAY_SIZE(mt9v011_init_default); i++) |
297 | mt9v011_write(sd, mt9v011_init_default[i].reg, | |
298 | mt9v011_init_default[i].value); | |
299 | ||
300 | set_balance(sd); | |
27fe4a30 | 301 | set_res(sd); |
2526ea6e | 302 | set_read_mode(sd); |
7dfba00d MCC |
303 | |
304 | return 0; | |
305 | }; | |
306 | ||
307 | static int mt9v011_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) | |
308 | { | |
309 | struct mt9v011 *core = to_mt9v011(sd); | |
310 | ||
311 | v4l2_dbg(1, debug, sd, "g_ctrl called\n"); | |
312 | ||
313 | switch (ctrl->id) { | |
314 | case V4L2_CID_GAIN: | |
315 | ctrl->value = core->global_gain; | |
316 | return 0; | |
317 | case V4L2_CID_RED_BALANCE: | |
318 | ctrl->value = core->red_bal; | |
319 | return 0; | |
320 | case V4L2_CID_BLUE_BALANCE: | |
321 | ctrl->value = core->blue_bal; | |
322 | return 0; | |
2526ea6e MCC |
323 | case V4L2_CID_HFLIP: |
324 | ctrl->value = core->hflip ? 1 : 0; | |
325 | return 0; | |
326 | case V4L2_CID_VFLIP: | |
327 | ctrl->value = core->vflip ? 1 : 0; | |
328 | return 0; | |
7dfba00d MCC |
329 | } |
330 | return -EINVAL; | |
331 | } | |
332 | ||
9873740b MCC |
333 | static int mt9v011_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) |
334 | { | |
335 | int i; | |
336 | ||
337 | v4l2_dbg(1, debug, sd, "queryctrl called\n"); | |
338 | ||
339 | for (i = 0; i < ARRAY_SIZE(mt9v011_qctrl); i++) | |
340 | if (qc->id && qc->id == mt9v011_qctrl[i].id) { | |
341 | memcpy(qc, &(mt9v011_qctrl[i]), | |
342 | sizeof(*qc)); | |
343 | return 0; | |
344 | } | |
345 | ||
346 | return -EINVAL; | |
347 | } | |
348 | ||
349 | ||
7dfba00d MCC |
350 | static int mt9v011_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
351 | { | |
352 | struct mt9v011 *core = to_mt9v011(sd); | |
353 | u8 i, n; | |
354 | n = ARRAY_SIZE(mt9v011_qctrl); | |
355 | ||
356 | for (i = 0; i < n; i++) { | |
357 | if (ctrl->id != mt9v011_qctrl[i].id) | |
358 | continue; | |
359 | if (ctrl->value < mt9v011_qctrl[i].minimum || | |
360 | ctrl->value > mt9v011_qctrl[i].maximum) | |
361 | return -ERANGE; | |
362 | v4l2_dbg(1, debug, sd, "s_ctrl: id=%d, value=%d\n", | |
363 | ctrl->id, ctrl->value); | |
364 | break; | |
365 | } | |
366 | ||
367 | switch (ctrl->id) { | |
368 | case V4L2_CID_GAIN: | |
369 | core->global_gain = ctrl->value; | |
370 | break; | |
371 | case V4L2_CID_RED_BALANCE: | |
372 | core->red_bal = ctrl->value; | |
373 | break; | |
374 | case V4L2_CID_BLUE_BALANCE: | |
375 | core->blue_bal = ctrl->value; | |
376 | break; | |
2526ea6e MCC |
377 | case V4L2_CID_HFLIP: |
378 | core->hflip = ctrl->value; | |
379 | set_read_mode(sd); | |
380 | return 0; | |
381 | case V4L2_CID_VFLIP: | |
382 | core->vflip = ctrl->value; | |
383 | set_read_mode(sd); | |
384 | return 0; | |
7dfba00d MCC |
385 | default: |
386 | return -EINVAL; | |
387 | } | |
388 | ||
389 | set_balance(sd); | |
390 | ||
391 | return 0; | |
392 | } | |
393 | ||
27fe4a30 MCC |
394 | static int mt9v011_enum_fmt(struct v4l2_subdev *sd, struct v4l2_fmtdesc *fmt) |
395 | { | |
396 | if (fmt->index > 0) | |
397 | return -EINVAL; | |
398 | ||
399 | fmt->flags = 0; | |
400 | strcpy(fmt->description, "8 bpp Bayer GRGR..BGBG"); | |
401 | fmt->pixelformat = V4L2_PIX_FMT_SGRBG8; | |
402 | ||
403 | return 0; | |
404 | } | |
405 | ||
406 | static int mt9v011_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt) | |
407 | { | |
408 | struct v4l2_pix_format *pix = &fmt->fmt.pix; | |
409 | ||
410 | if (pix->pixelformat != V4L2_PIX_FMT_SGRBG8) | |
411 | return -EINVAL; | |
412 | ||
413 | v4l_bound_align_image(&pix->width, 48, 639, 1, | |
414 | &pix->height, 32, 480, 1, 0); | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
83053f7f MCC |
419 | static int mt9v011_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) |
420 | { | |
421 | struct v4l2_captureparm *cp = &parms->parm.capture; | |
422 | ||
423 | if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
424 | return -EINVAL; | |
425 | ||
426 | memset(cp, 0, sizeof(struct v4l2_captureparm)); | |
427 | cp->capability = V4L2_CAP_TIMEPERFRAME; | |
428 | calc_fps(sd, | |
429 | &cp->timeperframe.numerator, | |
430 | &cp->timeperframe.denominator); | |
431 | ||
432 | return 0; | |
433 | } | |
434 | ||
435 | static int mt9v011_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) | |
436 | { | |
437 | struct v4l2_captureparm *cp = &parms->parm.capture; | |
438 | struct v4l2_fract *tpf = &cp->timeperframe; | |
439 | u16 speed; | |
440 | ||
441 | if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
442 | return -EINVAL; | |
443 | if (cp->extendedmode != 0) | |
444 | return -EINVAL; | |
445 | ||
446 | speed = calc_speed(sd, tpf->numerator, tpf->denominator); | |
447 | ||
448 | mt9v011_write(sd, R0A_MT9V011_CLK_SPEED, speed); | |
449 | v4l2_dbg(1, debug, sd, "Setting speed to %d\n", speed); | |
450 | ||
451 | /* Recalculate and update fps info */ | |
452 | calc_fps(sd, &tpf->numerator, &tpf->denominator); | |
453 | ||
454 | return 0; | |
455 | } | |
456 | ||
27fe4a30 MCC |
457 | static int mt9v011_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt) |
458 | { | |
459 | struct v4l2_pix_format *pix = &fmt->fmt.pix; | |
460 | struct mt9v011 *core = to_mt9v011(sd); | |
461 | int rc; | |
462 | ||
463 | rc = mt9v011_try_fmt(sd, fmt); | |
464 | if (rc < 0) | |
465 | return -EINVAL; | |
466 | ||
467 | core->width = pix->width; | |
468 | core->height = pix->height; | |
469 | ||
470 | set_res(sd); | |
471 | ||
472 | return 0; | |
473 | } | |
474 | ||
2ea472ff MCC |
475 | static int mt9v011_s_config(struct v4l2_subdev *sd, int dumb, void *data) |
476 | { | |
477 | struct mt9v011 *core = to_mt9v011(sd); | |
478 | unsigned *xtal = data; | |
479 | ||
480 | v4l2_dbg(1, debug, sd, "s_config called\n"); | |
481 | ||
482 | if (xtal) { | |
483 | core->xtal = *xtal; | |
484 | v4l2_dbg(1, debug, sd, "xtal set to %d.%03d MHz\n", | |
485 | *xtal / 1000000, (*xtal / 1000) % 1000); | |
486 | } | |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
27fe4a30 | 491 | |
7dfba00d MCC |
492 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
493 | static int mt9v011_g_register(struct v4l2_subdev *sd, | |
494 | struct v4l2_dbg_register *reg) | |
495 | { | |
496 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
497 | ||
498 | if (!v4l2_chip_match_i2c_client(client, ®->match)) | |
499 | return -EINVAL; | |
500 | if (!capable(CAP_SYS_ADMIN)) | |
501 | return -EPERM; | |
502 | ||
503 | reg->val = mt9v011_read(sd, reg->reg & 0xff); | |
504 | reg->size = 2; | |
505 | ||
506 | return 0; | |
507 | } | |
508 | ||
509 | static int mt9v011_s_register(struct v4l2_subdev *sd, | |
510 | struct v4l2_dbg_register *reg) | |
511 | { | |
512 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
513 | ||
514 | if (!v4l2_chip_match_i2c_client(client, ®->match)) | |
515 | return -EINVAL; | |
516 | if (!capable(CAP_SYS_ADMIN)) | |
517 | return -EPERM; | |
518 | ||
519 | mt9v011_write(sd, reg->reg & 0xff, reg->val & 0xffff); | |
520 | ||
521 | return 0; | |
522 | } | |
523 | #endif | |
524 | ||
525 | static int mt9v011_g_chip_ident(struct v4l2_subdev *sd, | |
526 | struct v4l2_dbg_chip_ident *chip) | |
527 | { | |
296544e1 | 528 | u16 version; |
7dfba00d MCC |
529 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
530 | ||
296544e1 MCC |
531 | version = mt9v011_read(sd, R00_MT9V011_CHIP_VERSION); |
532 | ||
7dfba00d | 533 | return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_MT9V011, |
296544e1 | 534 | version); |
7dfba00d MCC |
535 | } |
536 | ||
537 | static const struct v4l2_subdev_core_ops mt9v011_core_ops = { | |
9873740b | 538 | .queryctrl = mt9v011_queryctrl, |
7dfba00d MCC |
539 | .g_ctrl = mt9v011_g_ctrl, |
540 | .s_ctrl = mt9v011_s_ctrl, | |
541 | .reset = mt9v011_reset, | |
2ea472ff | 542 | .s_config = mt9v011_s_config, |
7dfba00d MCC |
543 | .g_chip_ident = mt9v011_g_chip_ident, |
544 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
545 | .g_register = mt9v011_g_register, | |
546 | .s_register = mt9v011_s_register, | |
547 | #endif | |
548 | }; | |
549 | ||
27fe4a30 MCC |
550 | static const struct v4l2_subdev_video_ops mt9v011_video_ops = { |
551 | .enum_fmt = mt9v011_enum_fmt, | |
552 | .try_fmt = mt9v011_try_fmt, | |
553 | .s_fmt = mt9v011_s_fmt, | |
83053f7f MCC |
554 | .g_parm = mt9v011_g_parm, |
555 | .s_parm = mt9v011_s_parm, | |
27fe4a30 MCC |
556 | }; |
557 | ||
7dfba00d | 558 | static const struct v4l2_subdev_ops mt9v011_ops = { |
27fe4a30 MCC |
559 | .core = &mt9v011_core_ops, |
560 | .video = &mt9v011_video_ops, | |
7dfba00d MCC |
561 | }; |
562 | ||
563 | ||
564 | /**************************************************************************** | |
565 | I2C Client & Driver | |
566 | ****************************************************************************/ | |
567 | ||
568 | static int mt9v011_probe(struct i2c_client *c, | |
569 | const struct i2c_device_id *id) | |
570 | { | |
27fe4a30 | 571 | u16 version; |
7dfba00d MCC |
572 | struct mt9v011 *core; |
573 | struct v4l2_subdev *sd; | |
574 | ||
575 | /* Check if the adapter supports the needed features */ | |
576 | if (!i2c_check_functionality(c->adapter, | |
577 | I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) | |
578 | return -EIO; | |
579 | ||
580 | core = kzalloc(sizeof(struct mt9v011), GFP_KERNEL); | |
581 | if (!core) | |
582 | return -ENOMEM; | |
583 | ||
7dfba00d MCC |
584 | sd = &core->sd; |
585 | v4l2_i2c_subdev_init(sd, c, &mt9v011_ops); | |
27fe4a30 MCC |
586 | |
587 | /* Check if the sensor is really a MT9V011 */ | |
588 | version = mt9v011_read(sd, R00_MT9V011_CHIP_VERSION); | |
296544e1 MCC |
589 | if ((version != MT9V011_VERSION) && |
590 | (version != MT9V011_REV_B_VERSION)) { | |
591 | v4l2_info(sd, "*** unknown micron chip detected (0x%04x).\n", | |
27fe4a30 MCC |
592 | version); |
593 | kfree(core); | |
594 | return -EINVAL; | |
595 | } | |
596 | ||
597 | core->global_gain = 0x0024; | |
598 | core->width = 640; | |
599 | core->height = 480; | |
e11206e6 | 600 | core->xtal = 27000000; /* Hz */ |
27fe4a30 | 601 | |
296544e1 MCC |
602 | v4l_info(c, "chip found @ 0x%02x (%s - chip version 0x%04x)\n", |
603 | c->addr << 1, c->adapter->name, version); | |
7dfba00d MCC |
604 | |
605 | return 0; | |
606 | } | |
607 | ||
608 | static int mt9v011_remove(struct i2c_client *c) | |
609 | { | |
610 | struct v4l2_subdev *sd = i2c_get_clientdata(c); | |
611 | ||
612 | v4l2_dbg(1, debug, sd, | |
613 | "mt9v011.c: removing mt9v011 adapter on address 0x%x\n", | |
614 | c->addr << 1); | |
615 | ||
616 | v4l2_device_unregister_subdev(sd); | |
617 | kfree(to_mt9v011(sd)); | |
618 | return 0; | |
619 | } | |
620 | ||
621 | /* ----------------------------------------------------------------------- */ | |
622 | ||
623 | static const struct i2c_device_id mt9v011_id[] = { | |
624 | { "mt9v011", 0 }, | |
625 | { } | |
626 | }; | |
627 | MODULE_DEVICE_TABLE(i2c, mt9v011_id); | |
628 | ||
629 | static struct v4l2_i2c_driver_data v4l2_i2c_data = { | |
630 | .name = "mt9v011", | |
631 | .probe = mt9v011_probe, | |
632 | .remove = mt9v011_remove, | |
633 | .id_table = mt9v011_id, | |
634 | }; |