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> | |
5a0e3ad6 | 9 | #include <linux/slab.h> |
7dfba00d MCC |
10 | #include <linux/videodev2.h> |
11 | #include <linux/delay.h> | |
e11206e6 | 12 | #include <asm/div64.h> |
7dfba00d MCC |
13 | #include <media/v4l2-device.h> |
14 | #include "mt9v011.h" | |
15 | #include <media/v4l2-i2c-drv.h> | |
16 | #include <media/v4l2-chip-ident.h> | |
17 | ||
18 | MODULE_DESCRIPTION("Micron mt9v011 sensor driver"); | |
19 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>"); | |
20 | MODULE_LICENSE("GPL"); | |
21 | ||
22 | ||
23 | static int debug; | |
24 | module_param(debug, int, 0); | |
25 | MODULE_PARM_DESC(debug, "Debug level (0-2)"); | |
26 | ||
27 | /* supported controls */ | |
28 | static struct v4l2_queryctrl mt9v011_qctrl[] = { | |
29 | { | |
30 | .id = V4L2_CID_GAIN, | |
31 | .type = V4L2_CTRL_TYPE_INTEGER, | |
32 | .name = "Gain", | |
33 | .minimum = 0, | |
34 | .maximum = (1 << 10) - 1, | |
35 | .step = 1, | |
36 | .default_value = 0x0020, | |
37 | .flags = 0, | |
38 | }, { | |
39 | .id = V4L2_CID_RED_BALANCE, | |
40 | .type = V4L2_CTRL_TYPE_INTEGER, | |
41 | .name = "Red Balance", | |
42 | .minimum = -1 << 9, | |
43 | .maximum = (1 << 9) - 1, | |
44 | .step = 1, | |
45 | .default_value = 0, | |
46 | .flags = 0, | |
47 | }, { | |
48 | .id = V4L2_CID_BLUE_BALANCE, | |
49 | .type = V4L2_CTRL_TYPE_INTEGER, | |
50 | .name = "Blue Balance", | |
51 | .minimum = -1 << 9, | |
52 | .maximum = (1 << 9) - 1, | |
53 | .step = 1, | |
54 | .default_value = 0, | |
55 | .flags = 0, | |
2526ea6e MCC |
56 | }, { |
57 | .id = V4L2_CID_HFLIP, | |
58 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
59 | .name = "Mirror", | |
60 | .minimum = 0, | |
61 | .maximum = 1, | |
62 | .step = 1, | |
63 | .default_value = 0, | |
64 | .flags = 0, | |
65 | }, { | |
66 | .id = V4L2_CID_VFLIP, | |
67 | .type = V4L2_CTRL_TYPE_BOOLEAN, | |
68 | .name = "Vflip", | |
69 | .minimum = 0, | |
70 | .maximum = 1, | |
71 | .step = 1, | |
72 | .default_value = 0, | |
73 | .flags = 0, | |
74 | }, { | |
75 | } | |
7dfba00d MCC |
76 | }; |
77 | ||
78 | struct mt9v011 { | |
79 | struct v4l2_subdev sd; | |
27fe4a30 | 80 | unsigned width, height; |
e11206e6 | 81 | unsigned xtal; |
2526ea6e MCC |
82 | unsigned hflip:1; |
83 | unsigned vflip:1; | |
7dfba00d MCC |
84 | |
85 | u16 global_gain, red_bal, blue_bal; | |
86 | }; | |
87 | ||
88 | static inline struct mt9v011 *to_mt9v011(struct v4l2_subdev *sd) | |
89 | { | |
90 | return container_of(sd, struct mt9v011, sd); | |
91 | } | |
92 | ||
93 | static int mt9v011_read(struct v4l2_subdev *sd, unsigned char addr) | |
94 | { | |
95 | struct i2c_client *c = v4l2_get_subdevdata(sd); | |
96 | __be16 buffer; | |
97 | int rc, val; | |
98 | ||
fbe2800c MCC |
99 | rc = i2c_master_send(c, &addr, 1); |
100 | if (rc != 1) | |
7dfba00d MCC |
101 | v4l2_dbg(0, debug, sd, |
102 | "i2c i/o error: rc == %d (should be 1)\n", rc); | |
103 | ||
104 | msleep(10); | |
105 | ||
fbe2800c MCC |
106 | rc = i2c_master_recv(c, (char *)&buffer, 2); |
107 | if (rc != 2) | |
7dfba00d | 108 | v4l2_dbg(0, debug, sd, |
fbe2800c | 109 | "i2c i/o error: rc == %d (should be 2)\n", rc); |
7dfba00d MCC |
110 | |
111 | val = be16_to_cpu(buffer); | |
112 | ||
113 | v4l2_dbg(2, debug, sd, "mt9v011: read 0x%02x = 0x%04x\n", addr, val); | |
114 | ||
115 | return val; | |
116 | } | |
117 | ||
118 | static void mt9v011_write(struct v4l2_subdev *sd, unsigned char addr, | |
119 | u16 value) | |
120 | { | |
121 | struct i2c_client *c = v4l2_get_subdevdata(sd); | |
122 | unsigned char buffer[3]; | |
123 | int rc; | |
124 | ||
125 | buffer[0] = addr; | |
126 | buffer[1] = value >> 8; | |
127 | buffer[2] = value & 0xff; | |
128 | ||
129 | v4l2_dbg(2, debug, sd, | |
130 | "mt9v011: writing 0x%02x 0x%04x\n", buffer[0], value); | |
27fe4a30 | 131 | rc = i2c_master_send(c, buffer, 3); |
fbe2800c | 132 | if (rc != 3) |
7dfba00d MCC |
133 | v4l2_dbg(0, debug, sd, |
134 | "i2c i/o error: rc == %d (should be 3)\n", rc); | |
135 | } | |
136 | ||
137 | ||
138 | struct i2c_reg_value { | |
139 | unsigned char reg; | |
140 | u16 value; | |
141 | }; | |
142 | ||
143 | /* | |
144 | * Values used at the original driver | |
145 | * Some values are marked as Reserved at the datasheet | |
146 | */ | |
147 | static const struct i2c_reg_value mt9v011_init_default[] = { | |
7dfba00d MCC |
148 | { R0D_MT9V011_RESET, 0x0001 }, |
149 | { R0D_MT9V011_RESET, 0x0000 }, | |
afe09f82 | 150 | |
afe09f82 | 151 | { R0C_MT9V011_SHUTTER_DELAY, 0x0000 }, |
6934e6ff MCC |
152 | { R09_MT9V011_SHUTTER_WIDTH, 0x1fc }, |
153 | ||
154 | { R0A_MT9V011_CLK_SPEED, 0x0000 }, | |
afe09f82 | 155 | { R1E_MT9V011_DIGITAL_ZOOM, 0x0000 }, |
afe09f82 | 156 | |
e11206e6 | 157 | { R07_MT9V011_OUT_CTRL, 0x0002 }, /* chip enable */ |
7dfba00d MCC |
158 | }; |
159 | ||
160 | static void set_balance(struct v4l2_subdev *sd) | |
161 | { | |
162 | struct mt9v011 *core = to_mt9v011(sd); | |
163 | u16 green1_gain, green2_gain, blue_gain, red_gain; | |
164 | ||
165 | green1_gain = core->global_gain; | |
166 | green2_gain = core->global_gain; | |
167 | ||
168 | blue_gain = core->global_gain + | |
169 | core->global_gain * core->blue_bal / (1 << 9); | |
170 | ||
171 | red_gain = core->global_gain + | |
172 | core->global_gain * core->blue_bal / (1 << 9); | |
173 | ||
174 | mt9v011_write(sd, R2B_MT9V011_GREEN_1_GAIN, green1_gain); | |
175 | mt9v011_write(sd, R2E_MT9V011_GREEN_2_GAIN, green1_gain); | |
176 | mt9v011_write(sd, R2C_MT9V011_BLUE_GAIN, blue_gain); | |
177 | mt9v011_write(sd, R2D_MT9V011_RED_GAIN, red_gain); | |
178 | } | |
179 | ||
83053f7f | 180 | static void calc_fps(struct v4l2_subdev *sd, u32 *numerator, u32 *denominator) |
e11206e6 MCC |
181 | { |
182 | struct mt9v011 *core = to_mt9v011(sd); | |
183 | unsigned height, width, hblank, vblank, speed; | |
184 | unsigned row_time, t_time; | |
185 | u64 frames_per_ms; | |
186 | unsigned tmp; | |
187 | ||
188 | height = mt9v011_read(sd, R03_MT9V011_HEIGHT); | |
189 | width = mt9v011_read(sd, R04_MT9V011_WIDTH); | |
190 | hblank = mt9v011_read(sd, R05_MT9V011_HBLANK); | |
191 | vblank = mt9v011_read(sd, R06_MT9V011_VBLANK); | |
192 | speed = mt9v011_read(sd, R0A_MT9V011_CLK_SPEED); | |
193 | ||
194 | row_time = (width + 113 + hblank) * (speed + 2); | |
195 | t_time = row_time * (height + vblank + 1); | |
196 | ||
197 | frames_per_ms = core->xtal * 1000l; | |
198 | do_div(frames_per_ms, t_time); | |
199 | tmp = frames_per_ms; | |
200 | ||
201 | v4l2_dbg(1, debug, sd, "Programmed to %u.%03u fps (%d pixel clcks)\n", | |
202 | tmp / 1000, tmp % 1000, t_time); | |
83053f7f MCC |
203 | |
204 | if (numerator && denominator) { | |
205 | *numerator = 1000; | |
206 | *denominator = (u32)frames_per_ms; | |
207 | } | |
208 | } | |
209 | ||
210 | static u16 calc_speed(struct v4l2_subdev *sd, u32 numerator, u32 denominator) | |
211 | { | |
212 | struct mt9v011 *core = to_mt9v011(sd); | |
213 | unsigned height, width, hblank, vblank; | |
214 | unsigned row_time, line_time; | |
215 | u64 t_time, speed; | |
216 | ||
217 | /* Avoid bogus calculus */ | |
218 | if (!numerator || !denominator) | |
219 | return 0; | |
220 | ||
221 | height = mt9v011_read(sd, R03_MT9V011_HEIGHT); | |
222 | width = mt9v011_read(sd, R04_MT9V011_WIDTH); | |
223 | hblank = mt9v011_read(sd, R05_MT9V011_HBLANK); | |
224 | vblank = mt9v011_read(sd, R06_MT9V011_VBLANK); | |
225 | ||
226 | row_time = width + 113 + hblank; | |
227 | line_time = height + vblank + 1; | |
228 | ||
229 | t_time = core->xtal * ((u64)numerator); | |
230 | /* round to the closest value */ | |
231 | t_time += denominator / 2; | |
232 | do_div(t_time, denominator); | |
233 | ||
234 | speed = t_time; | |
235 | do_div(speed, row_time * line_time); | |
236 | ||
237 | /* Avoid having a negative value for speed */ | |
238 | if (speed < 2) | |
239 | speed = 0; | |
240 | else | |
241 | speed -= 2; | |
242 | ||
243 | /* Avoid speed overflow */ | |
244 | if (speed > 15) | |
245 | return 15; | |
246 | ||
247 | return (u16)speed; | |
e11206e6 MCC |
248 | } |
249 | ||
27fe4a30 MCC |
250 | static void set_res(struct v4l2_subdev *sd) |
251 | { | |
252 | struct mt9v011 *core = to_mt9v011(sd); | |
253 | unsigned vstart, hstart; | |
254 | ||
255 | /* | |
256 | * The mt9v011 doesn't have scaling. So, in order to select the desired | |
257 | * resolution, we're cropping at the middle of the sensor. | |
258 | * hblank and vblank should be adjusted, in order to warrant that | |
259 | * we'll preserve the line timings for 30 fps, no matter what resolution | |
260 | * is selected. | |
6934e6ff MCC |
261 | * NOTE: datasheet says that width (and height) should be filled with |
262 | * width-1. However, this doesn't work, since one pixel per line will | |
263 | * be missing. | |
27fe4a30 MCC |
264 | */ |
265 | ||
266 | hstart = 14 + (640 - core->width) / 2; | |
267 | mt9v011_write(sd, R02_MT9V011_COLSTART, hstart); | |
268 | mt9v011_write(sd, R04_MT9V011_WIDTH, core->width); | |
269 | mt9v011_write(sd, R05_MT9V011_HBLANK, 771 - core->width); | |
270 | ||
c180604a | 271 | vstart = 8 + (480 - core->height) / 2; |
27fe4a30 MCC |
272 | mt9v011_write(sd, R01_MT9V011_ROWSTART, vstart); |
273 | mt9v011_write(sd, R03_MT9V011_HEIGHT, core->height); | |
274 | mt9v011_write(sd, R06_MT9V011_VBLANK, 508 - core->height); | |
e11206e6 | 275 | |
83053f7f | 276 | calc_fps(sd, NULL, NULL); |
27fe4a30 MCC |
277 | }; |
278 | ||
2526ea6e MCC |
279 | static void set_read_mode(struct v4l2_subdev *sd) |
280 | { | |
281 | struct mt9v011 *core = to_mt9v011(sd); | |
282 | unsigned mode = 0x1000; | |
283 | ||
284 | if (core->hflip) | |
285 | mode |= 0x4000; | |
286 | ||
287 | if (core->vflip) | |
288 | mode |= 0x8000; | |
289 | ||
290 | mt9v011_write(sd, R20_MT9V011_READ_MODE, mode); | |
291 | } | |
292 | ||
7dfba00d MCC |
293 | static int mt9v011_reset(struct v4l2_subdev *sd, u32 val) |
294 | { | |
7dfba00d MCC |
295 | int i; |
296 | ||
7dfba00d MCC |
297 | for (i = 0; i < ARRAY_SIZE(mt9v011_init_default); i++) |
298 | mt9v011_write(sd, mt9v011_init_default[i].reg, | |
299 | mt9v011_init_default[i].value); | |
300 | ||
301 | set_balance(sd); | |
27fe4a30 | 302 | set_res(sd); |
2526ea6e | 303 | set_read_mode(sd); |
7dfba00d MCC |
304 | |
305 | return 0; | |
306 | }; | |
307 | ||
308 | static int mt9v011_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) | |
309 | { | |
310 | struct mt9v011 *core = to_mt9v011(sd); | |
311 | ||
312 | v4l2_dbg(1, debug, sd, "g_ctrl called\n"); | |
313 | ||
314 | switch (ctrl->id) { | |
315 | case V4L2_CID_GAIN: | |
316 | ctrl->value = core->global_gain; | |
317 | return 0; | |
318 | case V4L2_CID_RED_BALANCE: | |
319 | ctrl->value = core->red_bal; | |
320 | return 0; | |
321 | case V4L2_CID_BLUE_BALANCE: | |
322 | ctrl->value = core->blue_bal; | |
323 | return 0; | |
2526ea6e MCC |
324 | case V4L2_CID_HFLIP: |
325 | ctrl->value = core->hflip ? 1 : 0; | |
326 | return 0; | |
327 | case V4L2_CID_VFLIP: | |
328 | ctrl->value = core->vflip ? 1 : 0; | |
329 | return 0; | |
7dfba00d MCC |
330 | } |
331 | return -EINVAL; | |
332 | } | |
333 | ||
9873740b MCC |
334 | static int mt9v011_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc) |
335 | { | |
336 | int i; | |
337 | ||
338 | v4l2_dbg(1, debug, sd, "queryctrl called\n"); | |
339 | ||
340 | for (i = 0; i < ARRAY_SIZE(mt9v011_qctrl); i++) | |
341 | if (qc->id && qc->id == mt9v011_qctrl[i].id) { | |
342 | memcpy(qc, &(mt9v011_qctrl[i]), | |
343 | sizeof(*qc)); | |
344 | return 0; | |
345 | } | |
346 | ||
347 | return -EINVAL; | |
348 | } | |
349 | ||
350 | ||
7dfba00d MCC |
351 | static int mt9v011_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl) |
352 | { | |
353 | struct mt9v011 *core = to_mt9v011(sd); | |
354 | u8 i, n; | |
355 | n = ARRAY_SIZE(mt9v011_qctrl); | |
356 | ||
357 | for (i = 0; i < n; i++) { | |
358 | if (ctrl->id != mt9v011_qctrl[i].id) | |
359 | continue; | |
360 | if (ctrl->value < mt9v011_qctrl[i].minimum || | |
361 | ctrl->value > mt9v011_qctrl[i].maximum) | |
362 | return -ERANGE; | |
363 | v4l2_dbg(1, debug, sd, "s_ctrl: id=%d, value=%d\n", | |
364 | ctrl->id, ctrl->value); | |
365 | break; | |
366 | } | |
367 | ||
368 | switch (ctrl->id) { | |
369 | case V4L2_CID_GAIN: | |
370 | core->global_gain = ctrl->value; | |
371 | break; | |
372 | case V4L2_CID_RED_BALANCE: | |
373 | core->red_bal = ctrl->value; | |
374 | break; | |
375 | case V4L2_CID_BLUE_BALANCE: | |
376 | core->blue_bal = ctrl->value; | |
377 | break; | |
2526ea6e MCC |
378 | case V4L2_CID_HFLIP: |
379 | core->hflip = ctrl->value; | |
380 | set_read_mode(sd); | |
381 | return 0; | |
382 | case V4L2_CID_VFLIP: | |
383 | core->vflip = ctrl->value; | |
384 | set_read_mode(sd); | |
385 | return 0; | |
7dfba00d MCC |
386 | default: |
387 | return -EINVAL; | |
388 | } | |
389 | ||
390 | set_balance(sd); | |
391 | ||
392 | return 0; | |
393 | } | |
394 | ||
27fe4a30 MCC |
395 | static int mt9v011_enum_fmt(struct v4l2_subdev *sd, struct v4l2_fmtdesc *fmt) |
396 | { | |
397 | if (fmt->index > 0) | |
398 | return -EINVAL; | |
399 | ||
400 | fmt->flags = 0; | |
401 | strcpy(fmt->description, "8 bpp Bayer GRGR..BGBG"); | |
402 | fmt->pixelformat = V4L2_PIX_FMT_SGRBG8; | |
403 | ||
404 | return 0; | |
405 | } | |
406 | ||
407 | static int mt9v011_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt) | |
408 | { | |
409 | struct v4l2_pix_format *pix = &fmt->fmt.pix; | |
410 | ||
411 | if (pix->pixelformat != V4L2_PIX_FMT_SGRBG8) | |
412 | return -EINVAL; | |
413 | ||
414 | v4l_bound_align_image(&pix->width, 48, 639, 1, | |
415 | &pix->height, 32, 480, 1, 0); | |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
83053f7f MCC |
420 | static int mt9v011_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) |
421 | { | |
422 | struct v4l2_captureparm *cp = &parms->parm.capture; | |
423 | ||
424 | if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
425 | return -EINVAL; | |
426 | ||
427 | memset(cp, 0, sizeof(struct v4l2_captureparm)); | |
428 | cp->capability = V4L2_CAP_TIMEPERFRAME; | |
429 | calc_fps(sd, | |
430 | &cp->timeperframe.numerator, | |
431 | &cp->timeperframe.denominator); | |
432 | ||
433 | return 0; | |
434 | } | |
435 | ||
436 | static int mt9v011_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms) | |
437 | { | |
438 | struct v4l2_captureparm *cp = &parms->parm.capture; | |
439 | struct v4l2_fract *tpf = &cp->timeperframe; | |
440 | u16 speed; | |
441 | ||
442 | if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) | |
443 | return -EINVAL; | |
444 | if (cp->extendedmode != 0) | |
445 | return -EINVAL; | |
446 | ||
447 | speed = calc_speed(sd, tpf->numerator, tpf->denominator); | |
448 | ||
449 | mt9v011_write(sd, R0A_MT9V011_CLK_SPEED, speed); | |
450 | v4l2_dbg(1, debug, sd, "Setting speed to %d\n", speed); | |
451 | ||
452 | /* Recalculate and update fps info */ | |
453 | calc_fps(sd, &tpf->numerator, &tpf->denominator); | |
454 | ||
455 | return 0; | |
456 | } | |
457 | ||
27fe4a30 MCC |
458 | static int mt9v011_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt) |
459 | { | |
460 | struct v4l2_pix_format *pix = &fmt->fmt.pix; | |
461 | struct mt9v011 *core = to_mt9v011(sd); | |
462 | int rc; | |
463 | ||
464 | rc = mt9v011_try_fmt(sd, fmt); | |
465 | if (rc < 0) | |
466 | return -EINVAL; | |
467 | ||
468 | core->width = pix->width; | |
469 | core->height = pix->height; | |
470 | ||
471 | set_res(sd); | |
472 | ||
473 | return 0; | |
474 | } | |
475 | ||
2ea472ff MCC |
476 | static int mt9v011_s_config(struct v4l2_subdev *sd, int dumb, void *data) |
477 | { | |
478 | struct mt9v011 *core = to_mt9v011(sd); | |
479 | unsigned *xtal = data; | |
480 | ||
481 | v4l2_dbg(1, debug, sd, "s_config called\n"); | |
482 | ||
483 | if (xtal) { | |
484 | core->xtal = *xtal; | |
485 | v4l2_dbg(1, debug, sd, "xtal set to %d.%03d MHz\n", | |
486 | *xtal / 1000000, (*xtal / 1000) % 1000); | |
487 | } | |
488 | ||
489 | return 0; | |
490 | } | |
491 | ||
27fe4a30 | 492 | |
7dfba00d MCC |
493 | #ifdef CONFIG_VIDEO_ADV_DEBUG |
494 | static int mt9v011_g_register(struct v4l2_subdev *sd, | |
495 | struct v4l2_dbg_register *reg) | |
496 | { | |
497 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
498 | ||
499 | if (!v4l2_chip_match_i2c_client(client, ®->match)) | |
500 | return -EINVAL; | |
501 | if (!capable(CAP_SYS_ADMIN)) | |
502 | return -EPERM; | |
503 | ||
504 | reg->val = mt9v011_read(sd, reg->reg & 0xff); | |
505 | reg->size = 2; | |
506 | ||
507 | return 0; | |
508 | } | |
509 | ||
510 | static int mt9v011_s_register(struct v4l2_subdev *sd, | |
511 | struct v4l2_dbg_register *reg) | |
512 | { | |
513 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
514 | ||
515 | if (!v4l2_chip_match_i2c_client(client, ®->match)) | |
516 | return -EINVAL; | |
517 | if (!capable(CAP_SYS_ADMIN)) | |
518 | return -EPERM; | |
519 | ||
520 | mt9v011_write(sd, reg->reg & 0xff, reg->val & 0xffff); | |
521 | ||
522 | return 0; | |
523 | } | |
524 | #endif | |
525 | ||
526 | static int mt9v011_g_chip_ident(struct v4l2_subdev *sd, | |
527 | struct v4l2_dbg_chip_ident *chip) | |
528 | { | |
296544e1 | 529 | u16 version; |
7dfba00d MCC |
530 | struct i2c_client *client = v4l2_get_subdevdata(sd); |
531 | ||
296544e1 MCC |
532 | version = mt9v011_read(sd, R00_MT9V011_CHIP_VERSION); |
533 | ||
7dfba00d | 534 | return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_MT9V011, |
296544e1 | 535 | version); |
7dfba00d MCC |
536 | } |
537 | ||
538 | static const struct v4l2_subdev_core_ops mt9v011_core_ops = { | |
9873740b | 539 | .queryctrl = mt9v011_queryctrl, |
7dfba00d MCC |
540 | .g_ctrl = mt9v011_g_ctrl, |
541 | .s_ctrl = mt9v011_s_ctrl, | |
542 | .reset = mt9v011_reset, | |
2ea472ff | 543 | .s_config = mt9v011_s_config, |
7dfba00d MCC |
544 | .g_chip_ident = mt9v011_g_chip_ident, |
545 | #ifdef CONFIG_VIDEO_ADV_DEBUG | |
546 | .g_register = mt9v011_g_register, | |
547 | .s_register = mt9v011_s_register, | |
548 | #endif | |
549 | }; | |
550 | ||
27fe4a30 MCC |
551 | static const struct v4l2_subdev_video_ops mt9v011_video_ops = { |
552 | .enum_fmt = mt9v011_enum_fmt, | |
553 | .try_fmt = mt9v011_try_fmt, | |
554 | .s_fmt = mt9v011_s_fmt, | |
83053f7f MCC |
555 | .g_parm = mt9v011_g_parm, |
556 | .s_parm = mt9v011_s_parm, | |
27fe4a30 MCC |
557 | }; |
558 | ||
7dfba00d | 559 | static const struct v4l2_subdev_ops mt9v011_ops = { |
27fe4a30 MCC |
560 | .core = &mt9v011_core_ops, |
561 | .video = &mt9v011_video_ops, | |
7dfba00d MCC |
562 | }; |
563 | ||
564 | ||
565 | /**************************************************************************** | |
566 | I2C Client & Driver | |
567 | ****************************************************************************/ | |
568 | ||
569 | static int mt9v011_probe(struct i2c_client *c, | |
570 | const struct i2c_device_id *id) | |
571 | { | |
27fe4a30 | 572 | u16 version; |
7dfba00d MCC |
573 | struct mt9v011 *core; |
574 | struct v4l2_subdev *sd; | |
575 | ||
576 | /* Check if the adapter supports the needed features */ | |
577 | if (!i2c_check_functionality(c->adapter, | |
578 | I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA)) | |
579 | return -EIO; | |
580 | ||
581 | core = kzalloc(sizeof(struct mt9v011), GFP_KERNEL); | |
582 | if (!core) | |
583 | return -ENOMEM; | |
584 | ||
7dfba00d MCC |
585 | sd = &core->sd; |
586 | v4l2_i2c_subdev_init(sd, c, &mt9v011_ops); | |
27fe4a30 MCC |
587 | |
588 | /* Check if the sensor is really a MT9V011 */ | |
589 | version = mt9v011_read(sd, R00_MT9V011_CHIP_VERSION); | |
296544e1 MCC |
590 | if ((version != MT9V011_VERSION) && |
591 | (version != MT9V011_REV_B_VERSION)) { | |
592 | v4l2_info(sd, "*** unknown micron chip detected (0x%04x).\n", | |
27fe4a30 MCC |
593 | version); |
594 | kfree(core); | |
595 | return -EINVAL; | |
596 | } | |
597 | ||
598 | core->global_gain = 0x0024; | |
599 | core->width = 640; | |
600 | core->height = 480; | |
e11206e6 | 601 | core->xtal = 27000000; /* Hz */ |
27fe4a30 | 602 | |
296544e1 MCC |
603 | v4l_info(c, "chip found @ 0x%02x (%s - chip version 0x%04x)\n", |
604 | c->addr << 1, c->adapter->name, version); | |
7dfba00d MCC |
605 | |
606 | return 0; | |
607 | } | |
608 | ||
609 | static int mt9v011_remove(struct i2c_client *c) | |
610 | { | |
611 | struct v4l2_subdev *sd = i2c_get_clientdata(c); | |
612 | ||
613 | v4l2_dbg(1, debug, sd, | |
614 | "mt9v011.c: removing mt9v011 adapter on address 0x%x\n", | |
615 | c->addr << 1); | |
616 | ||
617 | v4l2_device_unregister_subdev(sd); | |
618 | kfree(to_mt9v011(sd)); | |
619 | return 0; | |
620 | } | |
621 | ||
622 | /* ----------------------------------------------------------------------- */ | |
623 | ||
624 | static const struct i2c_device_id mt9v011_id[] = { | |
625 | { "mt9v011", 0 }, | |
626 | { } | |
627 | }; | |
628 | MODULE_DEVICE_TABLE(i2c, mt9v011_id); | |
629 | ||
630 | static struct v4l2_i2c_driver_data v4l2_i2c_data = { | |
631 | .name = "mt9v011", | |
632 | .probe = mt9v011_probe, | |
633 | .remove = mt9v011_remove, | |
634 | .id_table = mt9v011_id, | |
635 | }; |