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Linux 3.11-rc3
[cris-mirror.git] / drivers / media / usb / cpia2 / cpia2_core.c
blob187012ce444bd2aef05235335c32e8302b3d3727
1 /****************************************************************************
2 *
3 * Filename: cpia2_core.c
4 *
5 * Copyright 2001, STMicrolectronics, Inc.
6 * Contact: steve.miller@st.com
7 *
8 * Description:
9 * This is a USB driver for CPia2 based video cameras.
10 * The infrastructure of this driver is based on the cpia usb driver by
11 * Jochen Scharrlach and Johannes Erdfeldt.
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26 *
27 * Stripped of 2.4 stuff ready for main kernel submit by
28 * Alan Cox <alan@lxorguk.ukuu.org.uk>
29 *
30 ****************************************************************************/
31
32 #include "cpia2.h"
33
34 #include <linux/module.h>
35 #include <linux/slab.h>
36 #include <linux/mm.h>
37 #include <linux/vmalloc.h>
38 #include <linux/firmware.h>
39
40 #define FIRMWARE "cpia2/stv0672_vp4.bin"
41 MODULE_FIRMWARE(FIRMWARE);
42
43 /* #define _CPIA2_DEBUG_ */
44
45 #ifdef _CPIA2_DEBUG_
46
47 static const char *block_name[] = {
48 "System",
49 "VC",
50 "VP",
51 "IDATA"
52 };
53 #endif
54
55 static unsigned int debugs_on; /* default 0 - DEBUG_REG */
56
57
58 /******************************************************************************
59 *
60 * Forward Declarations
61 *
62 *****************************************************************************/
63 static int apply_vp_patch(struct camera_data *cam);
64 static int set_default_user_mode(struct camera_data *cam);
65 static int set_vw_size(struct camera_data *cam, int size);
66 static int configure_sensor(struct camera_data *cam,
67 int reqwidth, int reqheight);
68 static int config_sensor_410(struct camera_data *cam,
69 int reqwidth, int reqheight);
70 static int config_sensor_500(struct camera_data *cam,
71 int reqwidth, int reqheight);
72 static int set_all_properties(struct camera_data *cam);
73 static void wake_system(struct camera_data *cam);
74 static void set_lowlight_boost(struct camera_data *cam);
75 static void reset_camera_struct(struct camera_data *cam);
76 static int cpia2_set_high_power(struct camera_data *cam);
77
78 /* Here we want the physical address of the memory.
79 * This is used when initializing the contents of the
80 * area and marking the pages as reserved.
81 */
82 static inline unsigned long kvirt_to_pa(unsigned long adr)
83 {
84 unsigned long kva, ret;
85
86 kva = (unsigned long) page_address(vmalloc_to_page((void *)adr));
87 kva |= adr & (PAGE_SIZE-1); /* restore the offset */
88 ret = __pa(kva);
89 return ret;
90 }
91
92 static void *rvmalloc(unsigned long size)
93 {
94 void *mem;
95 unsigned long adr;
96
97 /* Round it off to PAGE_SIZE */
98 size = PAGE_ALIGN(size);
99
100 mem = vmalloc_32(size);
101 if (!mem)
102 return NULL;
103
104 memset(mem, 0, size); /* Clear the ram out, no junk to the user */
105 adr = (unsigned long) mem;
106
107 while ((long)size > 0) {
108 SetPageReserved(vmalloc_to_page((void *)adr));
109 adr += PAGE_SIZE;
110 size -= PAGE_SIZE;
111 }
112 return mem;
113 }
114
115 static void rvfree(void *mem, unsigned long size)
116 {
117 unsigned long adr;
118
119 if (!mem)
120 return;
121
122 size = PAGE_ALIGN(size);
123
124 adr = (unsigned long) mem;
125 while ((long)size > 0) {
126 ClearPageReserved(vmalloc_to_page((void *)adr));
127 adr += PAGE_SIZE;
128 size -= PAGE_SIZE;
129 }
130 vfree(mem);
131 }
132
133 /******************************************************************************
134 *
135 * cpia2_do_command
136 *
137 * Send an arbitrary command to the camera. For commands that read from
138 * the camera, copy the buffers into the proper param structures.
139 *****************************************************************************/
140 int cpia2_do_command(struct camera_data *cam,
141 u32 command, u8 direction, u8 param)
142 {
143 int retval = 0;
144 struct cpia2_command cmd;
145 unsigned int device = cam->params.pnp_id.device_type;
146
147 cmd.command = command;
148 cmd.reg_count = 2; /* default */
149 cmd.direction = direction;
150
151 /***
152 * Set up the command.
153 ***/
154 switch (command) {
155 case CPIA2_CMD_GET_VERSION:
156 cmd.req_mode =
157 CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
158 cmd.start = CPIA2_SYSTEM_DEVICE_HI;
159 break;
160 case CPIA2_CMD_GET_PNP_ID:
161 cmd.req_mode =
162 CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
163 cmd.reg_count = 8;
164 cmd.start = CPIA2_SYSTEM_DESCRIP_VID_HI;
165 break;
166 case CPIA2_CMD_GET_ASIC_TYPE:
167 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
168 cmd.start = CPIA2_VC_ASIC_ID;
169 break;
170 case CPIA2_CMD_GET_SENSOR:
171 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
172 cmd.start = CPIA2_VP_SENSOR_FLAGS;
173 break;
174 case CPIA2_CMD_GET_VP_DEVICE:
175 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
176 cmd.start = CPIA2_VP_DEVICEH;
177 break;
178 case CPIA2_CMD_SET_VP_BRIGHTNESS:
179 cmd.buffer.block_data[0] = param; /* Then fall through */
180 case CPIA2_CMD_GET_VP_BRIGHTNESS:
181 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
182 cmd.reg_count = 1;
183 if (device == DEVICE_STV_672)
184 cmd.start = CPIA2_VP4_EXPOSURE_TARGET;
185 else
186 cmd.start = CPIA2_VP5_EXPOSURE_TARGET;
187 break;
188 case CPIA2_CMD_SET_CONTRAST:
189 cmd.buffer.block_data[0] = param; /* Then fall through */
190 case CPIA2_CMD_GET_CONTRAST:
191 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
192 cmd.reg_count = 1;
193 cmd.start = CPIA2_VP_YRANGE;
194 break;
195 case CPIA2_CMD_SET_VP_SATURATION:
196 cmd.buffer.block_data[0] = param; /* Then fall through */
197 case CPIA2_CMD_GET_VP_SATURATION:
198 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
199 cmd.reg_count = 1;
200 if (device == DEVICE_STV_672)
201 cmd.start = CPIA2_VP_SATURATION;
202 else
203 cmd.start = CPIA2_VP5_MCUVSATURATION;
204 break;
205 case CPIA2_CMD_SET_VP_GPIO_DATA:
206 cmd.buffer.block_data[0] = param; /* Then fall through */
207 case CPIA2_CMD_GET_VP_GPIO_DATA:
208 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
209 cmd.reg_count = 1;
210 cmd.start = CPIA2_VP_GPIO_DATA;
211 break;
212 case CPIA2_CMD_SET_VP_GPIO_DIRECTION:
213 cmd.buffer.block_data[0] = param; /* Then fall through */
214 case CPIA2_CMD_GET_VP_GPIO_DIRECTION:
215 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
216 cmd.reg_count = 1;
217 cmd.start = CPIA2_VP_GPIO_DIRECTION;
218 break;
219 case CPIA2_CMD_SET_VC_MP_GPIO_DATA:
220 cmd.buffer.block_data[0] = param; /* Then fall through */
221 case CPIA2_CMD_GET_VC_MP_GPIO_DATA:
222 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
223 cmd.reg_count = 1;
224 cmd.start = CPIA2_VC_MP_DATA;
225 break;
226 case CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION:
227 cmd.buffer.block_data[0] = param; /* Then fall through */
228 case CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION:
229 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
230 cmd.reg_count = 1;
231 cmd.start = CPIA2_VC_MP_DIR;
232 break;
233 case CPIA2_CMD_ENABLE_PACKET_CTRL:
234 cmd.req_mode =
235 CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
236 cmd.start = CPIA2_SYSTEM_INT_PACKET_CTRL;
237 cmd.reg_count = 1;
238 cmd.buffer.block_data[0] = param;
239 break;
240 case CPIA2_CMD_SET_FLICKER_MODES:
241 cmd.buffer.block_data[0] = param; /* Then fall through */
242 case CPIA2_CMD_GET_FLICKER_MODES:
243 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
244 cmd.reg_count = 1;
245 cmd.start = CPIA2_VP_FLICKER_MODES;
246 break;
247 case CPIA2_CMD_RESET_FIFO: /* clear fifo and enable stream block */
248 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
249 cmd.reg_count = 2;
250 cmd.start = 0;
251 cmd.buffer.registers[0].index = CPIA2_VC_ST_CTRL;
252 cmd.buffer.registers[0].value = CPIA2_VC_ST_CTRL_SRC_VC |
253 CPIA2_VC_ST_CTRL_DST_USB | CPIA2_VC_ST_CTRL_EOF_DETECT;
254 cmd.buffer.registers[1].index = CPIA2_VC_ST_CTRL;
255 cmd.buffer.registers[1].value = CPIA2_VC_ST_CTRL_SRC_VC |
256 CPIA2_VC_ST_CTRL_DST_USB |
257 CPIA2_VC_ST_CTRL_EOF_DETECT |
258 CPIA2_VC_ST_CTRL_FIFO_ENABLE;
259 break;
260 case CPIA2_CMD_SET_HI_POWER:
261 cmd.req_mode =
262 CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_SYSTEM;
263 cmd.reg_count = 2;
264 cmd.buffer.registers[0].index =
265 CPIA2_SYSTEM_SYSTEM_CONTROL;
266 cmd.buffer.registers[1].index =
267 CPIA2_SYSTEM_SYSTEM_CONTROL;
268 cmd.buffer.registers[0].value = CPIA2_SYSTEM_CONTROL_CLEAR_ERR;
269 cmd.buffer.registers[1].value =
270 CPIA2_SYSTEM_CONTROL_HIGH_POWER;
271 break;
272 case CPIA2_CMD_SET_LOW_POWER:
273 cmd.req_mode =
274 CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
275 cmd.reg_count = 1;
276 cmd.start = CPIA2_SYSTEM_SYSTEM_CONTROL;
277 cmd.buffer.block_data[0] = 0;
278 break;
279 case CPIA2_CMD_CLEAR_V2W_ERR:
280 cmd.req_mode =
281 CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
282 cmd.reg_count = 1;
283 cmd.start = CPIA2_SYSTEM_SYSTEM_CONTROL;
284 cmd.buffer.block_data[0] = CPIA2_SYSTEM_CONTROL_CLEAR_ERR;
285 break;
286 case CPIA2_CMD_SET_USER_MODE: /* Then fall through */
287 cmd.buffer.block_data[0] = param;
288 case CPIA2_CMD_GET_USER_MODE:
289 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
290 cmd.reg_count = 1;
291 if (device == DEVICE_STV_672)
292 cmd.start = CPIA2_VP4_USER_MODE;
293 else
294 cmd.start = CPIA2_VP5_USER_MODE;
295 break;
296 case CPIA2_CMD_FRAMERATE_REQ:
297 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
298 cmd.reg_count = 1;
299 if (device == DEVICE_STV_672)
300 cmd.start = CPIA2_VP4_FRAMERATE_REQUEST;
301 else
302 cmd.start = CPIA2_VP5_FRAMERATE_REQUEST;
303 cmd.buffer.block_data[0] = param;
304 break;
305 case CPIA2_CMD_SET_WAKEUP:
306 cmd.buffer.block_data[0] = param; /* Then fall through */
307 case CPIA2_CMD_GET_WAKEUP:
308 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
309 cmd.reg_count = 1;
310 cmd.start = CPIA2_VC_WAKEUP;
311 break;
312 case CPIA2_CMD_SET_PW_CONTROL:
313 cmd.buffer.block_data[0] = param; /* Then fall through */
314 case CPIA2_CMD_GET_PW_CONTROL:
315 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
316 cmd.reg_count = 1;
317 cmd.start = CPIA2_VC_PW_CTRL;
318 break;
319 case CPIA2_CMD_GET_VP_SYSTEM_STATE:
320 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
321 cmd.reg_count = 1;
322 cmd.start = CPIA2_VP_SYSTEMSTATE;
323 break;
324 case CPIA2_CMD_SET_SYSTEM_CTRL:
325 cmd.buffer.block_data[0] = param; /* Then fall through */
326 case CPIA2_CMD_GET_SYSTEM_CTRL:
327 cmd.req_mode =
328 CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
329 cmd.reg_count = 1;
330 cmd.start = CPIA2_SYSTEM_SYSTEM_CONTROL;
331 break;
332 case CPIA2_CMD_SET_VP_SYSTEM_CTRL:
333 cmd.buffer.block_data[0] = param; /* Then fall through */
334 case CPIA2_CMD_GET_VP_SYSTEM_CTRL:
335 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
336 cmd.reg_count = 1;
337 cmd.start = CPIA2_VP_SYSTEMCTRL;
338 break;
339 case CPIA2_CMD_SET_VP_EXP_MODES:
340 cmd.buffer.block_data[0] = param; /* Then fall through */
341 case CPIA2_CMD_GET_VP_EXP_MODES:
342 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
343 cmd.reg_count = 1;
344 cmd.start = CPIA2_VP_EXPOSURE_MODES;
345 break;
346 case CPIA2_CMD_SET_DEVICE_CONFIG:
347 cmd.buffer.block_data[0] = param; /* Then fall through */
348 case CPIA2_CMD_GET_DEVICE_CONFIG:
349 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
350 cmd.reg_count = 1;
351 cmd.start = CPIA2_VP_DEVICE_CONFIG;
352 break;
353 case CPIA2_CMD_SET_SERIAL_ADDR:
354 cmd.buffer.block_data[0] = param;
355 cmd.req_mode =
356 CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
357 cmd.reg_count = 1;
358 cmd.start = CPIA2_SYSTEM_VP_SERIAL_ADDR;
359 break;
360 case CPIA2_CMD_SET_SENSOR_CR1:
361 cmd.buffer.block_data[0] = param;
362 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
363 cmd.reg_count = 1;
364 cmd.start = CPIA2_SENSOR_CR1;
365 break;
366 case CPIA2_CMD_SET_VC_CONTROL:
367 cmd.buffer.block_data[0] = param; /* Then fall through */
368 case CPIA2_CMD_GET_VC_CONTROL:
369 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
370 cmd.reg_count = 1;
371 cmd.start = CPIA2_VC_VC_CTRL;
372 break;
373 case CPIA2_CMD_SET_TARGET_KB:
374 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
375 cmd.reg_count = 1;
376 cmd.buffer.registers[0].index = CPIA2_VC_VC_TARGET_KB;
377 cmd.buffer.registers[0].value = param;
378 break;
379 case CPIA2_CMD_SET_DEF_JPEG_OPT:
380 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
381 cmd.reg_count = 4;
382 cmd.buffer.registers[0].index = CPIA2_VC_VC_JPEG_OPT;
383 cmd.buffer.registers[0].value =
384 CPIA2_VC_VC_JPEG_OPT_DOUBLE_SQUEEZE;
385 cmd.buffer.registers[1].index = CPIA2_VC_VC_USER_SQUEEZE;
386 cmd.buffer.registers[1].value = 20;
387 cmd.buffer.registers[2].index = CPIA2_VC_VC_CREEP_PERIOD;
388 cmd.buffer.registers[2].value = 2;
389 cmd.buffer.registers[3].index = CPIA2_VC_VC_JPEG_OPT;
390 cmd.buffer.registers[3].value = CPIA2_VC_VC_JPEG_OPT_DEFAULT;
391 break;
392 case CPIA2_CMD_REHASH_VP4:
393 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
394 cmd.reg_count = 1;
395 cmd.start = CPIA2_VP_REHASH_VALUES;
396 cmd.buffer.block_data[0] = param;
397 break;
398 case CPIA2_CMD_SET_USER_EFFECTS: /* Note: Be careful with this as
399 this register can also affect
400 flicker modes */
401 cmd.buffer.block_data[0] = param; /* Then fall through */
402 case CPIA2_CMD_GET_USER_EFFECTS:
403 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
404 cmd.reg_count = 1;
405 if (device == DEVICE_STV_672)
406 cmd.start = CPIA2_VP4_USER_EFFECTS;
407 else
408 cmd.start = CPIA2_VP5_USER_EFFECTS;
409 break;
410 default:
411 LOG("DoCommand received invalid command\n");
412 return -EINVAL;
413 }
414
415 retval = cpia2_send_command(cam, &cmd);
416 if (retval) {
417 return retval;
418 }
419
420 /***
421 * Now copy any results from a read into the appropriate param struct.
422 ***/
423 switch (command) {
424 case CPIA2_CMD_GET_VERSION:
425 cam->params.version.firmware_revision_hi =
426 cmd.buffer.block_data[0];
427 cam->params.version.firmware_revision_lo =
428 cmd.buffer.block_data[1];
429 break;
430 case CPIA2_CMD_GET_PNP_ID:
431 cam->params.pnp_id.vendor = (cmd.buffer.block_data[0] << 8) |
432 cmd.buffer.block_data[1];
433 cam->params.pnp_id.product = (cmd.buffer.block_data[2] << 8) |
434 cmd.buffer.block_data[3];
435 cam->params.pnp_id.device_revision =
436 (cmd.buffer.block_data[4] << 8) |
437 cmd.buffer.block_data[5];
438 if (cam->params.pnp_id.vendor == 0x553) {
439 if (cam->params.pnp_id.product == 0x100) {
440 cam->params.pnp_id.device_type = DEVICE_STV_672;
441 } else if (cam->params.pnp_id.product == 0x140 ||
442 cam->params.pnp_id.product == 0x151) {
443 cam->params.pnp_id.device_type = DEVICE_STV_676;
444 }
445 }
446 break;
447 case CPIA2_CMD_GET_ASIC_TYPE:
448 cam->params.version.asic_id = cmd.buffer.block_data[0];
449 cam->params.version.asic_rev = cmd.buffer.block_data[1];
450 break;
451 case CPIA2_CMD_GET_SENSOR:
452 cam->params.version.sensor_flags = cmd.buffer.block_data[0];
453 cam->params.version.sensor_rev = cmd.buffer.block_data[1];
454 break;
455 case CPIA2_CMD_GET_VP_DEVICE:
456 cam->params.version.vp_device_hi = cmd.buffer.block_data[0];
457 cam->params.version.vp_device_lo = cmd.buffer.block_data[1];
458 break;
459 case CPIA2_CMD_GET_VP_GPIO_DATA:
460 cam->params.vp_params.gpio_data = cmd.buffer.block_data[0];
461 break;
462 case CPIA2_CMD_GET_VP_GPIO_DIRECTION:
463 cam->params.vp_params.gpio_direction = cmd.buffer.block_data[0];
464 break;
465 case CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION:
466 cam->params.vc_params.vc_mp_direction =cmd.buffer.block_data[0];
467 break;
468 case CPIA2_CMD_GET_VC_MP_GPIO_DATA:
469 cam->params.vc_params.vc_mp_data = cmd.buffer.block_data[0];
470 break;
471 case CPIA2_CMD_GET_FLICKER_MODES:
472 cam->params.flicker_control.cam_register =
473 cmd.buffer.block_data[0];
474 break;
475 case CPIA2_CMD_GET_WAKEUP:
476 cam->params.vc_params.wakeup = cmd.buffer.block_data[0];
477 break;
478 case CPIA2_CMD_GET_PW_CONTROL:
479 cam->params.vc_params.pw_control = cmd.buffer.block_data[0];
480 break;
481 case CPIA2_CMD_GET_SYSTEM_CTRL:
482 cam->params.camera_state.system_ctrl = cmd.buffer.block_data[0];
483 break;
484 case CPIA2_CMD_GET_VP_SYSTEM_STATE:
485 cam->params.vp_params.system_state = cmd.buffer.block_data[0];
486 break;
487 case CPIA2_CMD_GET_VP_SYSTEM_CTRL:
488 cam->params.vp_params.system_ctrl = cmd.buffer.block_data[0];
489 break;
490 case CPIA2_CMD_GET_VP_EXP_MODES:
491 cam->params.vp_params.exposure_modes = cmd.buffer.block_data[0];
492 break;
493 case CPIA2_CMD_GET_DEVICE_CONFIG:
494 cam->params.vp_params.device_config = cmd.buffer.block_data[0];
495 break;
496 case CPIA2_CMD_GET_VC_CONTROL:
497 cam->params.vc_params.vc_control = cmd.buffer.block_data[0];
498 break;
499 case CPIA2_CMD_GET_USER_MODE:
500 cam->params.vp_params.video_mode = cmd.buffer.block_data[0];
501 break;
502 case CPIA2_CMD_GET_USER_EFFECTS:
503 cam->params.vp_params.user_effects = cmd.buffer.block_data[0];
504 break;
505 default:
506 break;
507 }
508 return retval;
509 }
510
511 /******************************************************************************
512 *
513 * cpia2_send_command
514 *
515 *****************************************************************************/
516
517 #define DIR(cmd) ((cmd->direction == TRANSFER_WRITE) ? "Write" : "Read")
518 #define BINDEX(cmd) (cmd->req_mode & 0x03)
519
520 int cpia2_send_command(struct camera_data *cam, struct cpia2_command *cmd)
521 {
522 u8 count;
523 u8 start;
524 u8 *buffer;
525 int retval;
526
527 switch (cmd->req_mode & 0x0c) {
528 case CAMERAACCESS_TYPE_RANDOM:
529 count = cmd->reg_count * sizeof(struct cpia2_register);
530 start = 0;
531 buffer = (u8 *) & cmd->buffer;
532 if (debugs_on & DEBUG_REG)
533 DBG("%s Random: Register block %s\n", DIR(cmd),
534 block_name[BINDEX(cmd)]);
535 break;
536 case CAMERAACCESS_TYPE_BLOCK:
537 count = cmd->reg_count;
538 start = cmd->start;
539 buffer = cmd->buffer.block_data;
540 if (debugs_on & DEBUG_REG)
541 DBG("%s Block: Register block %s\n", DIR(cmd),
542 block_name[BINDEX(cmd)]);
543 break;
544 case CAMERAACCESS_TYPE_MASK:
545 count = cmd->reg_count * sizeof(struct cpia2_reg_mask);
546 start = 0;
547 buffer = (u8 *) & cmd->buffer;
548 if (debugs_on & DEBUG_REG)
549 DBG("%s Mask: Register block %s\n", DIR(cmd),
550 block_name[BINDEX(cmd)]);
551 break;
552 case CAMERAACCESS_TYPE_REPEAT: /* For patch blocks only */
553 count = cmd->reg_count;
554 start = cmd->start;
555 buffer = cmd->buffer.block_data;
556 if (debugs_on & DEBUG_REG)
557 DBG("%s Repeat: Register block %s\n", DIR(cmd),
558 block_name[BINDEX(cmd)]);
559 break;
560 default:
561 LOG("%s: invalid request mode\n",__func__);
562 return -EINVAL;
563 }
564
565 retval = cpia2_usb_transfer_cmd(cam,
566 buffer,
567 cmd->req_mode,
568 start, count, cmd->direction);
569 #ifdef _CPIA2_DEBUG_
570 if (debugs_on & DEBUG_REG) {
571 int i;
572 for (i = 0; i < cmd->reg_count; i++) {
573 if((cmd->req_mode & 0x0c) == CAMERAACCESS_TYPE_BLOCK)
574 KINFO("%s Block: [0x%02X] = 0x%02X\n",
575 DIR(cmd), start + i, buffer[i]);
576 if((cmd->req_mode & 0x0c) == CAMERAACCESS_TYPE_RANDOM)
577 KINFO("%s Random: [0x%02X] = 0x%02X\n",
578 DIR(cmd), cmd->buffer.registers[i].index,
579 cmd->buffer.registers[i].value);
580 }
581 }
582 #endif
583
584 return retval;
585 };
586
587 /*************
588 * Functions to implement camera functionality
589 *************/
590 /******************************************************************************
591 *
592 * cpia2_get_version_info
593 *
594 *****************************************************************************/
595 static void cpia2_get_version_info(struct camera_data *cam)
596 {
597 cpia2_do_command(cam, CPIA2_CMD_GET_VERSION, TRANSFER_READ, 0);
598 cpia2_do_command(cam, CPIA2_CMD_GET_PNP_ID, TRANSFER_READ, 0);
599 cpia2_do_command(cam, CPIA2_CMD_GET_ASIC_TYPE, TRANSFER_READ, 0);
600 cpia2_do_command(cam, CPIA2_CMD_GET_SENSOR, TRANSFER_READ, 0);
601 cpia2_do_command(cam, CPIA2_CMD_GET_VP_DEVICE, TRANSFER_READ, 0);
602 }
603
604 /******************************************************************************
605 *
606 * cpia2_reset_camera
607 *
608 * Called at least during the open process, sets up initial params.
609 *****************************************************************************/
610 int cpia2_reset_camera(struct camera_data *cam)
611 {
612 u8 tmp_reg;
613 int retval = 0;
614 int target_kb;
615 int i;
616 struct cpia2_command cmd;
617
618 /***
619 * VC setup
620 ***/
621 retval = configure_sensor(cam,
622 cam->params.roi.width,
623 cam->params.roi.height);
624 if (retval < 0) {
625 ERR("Couldn't configure sensor, error=%d\n", retval);
626 return retval;
627 }
628
629 /* Clear FIFO and route/enable stream block */
630 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
631 cmd.direction = TRANSFER_WRITE;
632 cmd.reg_count = 2;
633 cmd.buffer.registers[0].index = CPIA2_VC_ST_CTRL;
634 cmd.buffer.registers[0].value = CPIA2_VC_ST_CTRL_SRC_VC |
635 CPIA2_VC_ST_CTRL_DST_USB | CPIA2_VC_ST_CTRL_EOF_DETECT;
636 cmd.buffer.registers[1].index = CPIA2_VC_ST_CTRL;
637 cmd.buffer.registers[1].value = CPIA2_VC_ST_CTRL_SRC_VC |
638 CPIA2_VC_ST_CTRL_DST_USB |
639 CPIA2_VC_ST_CTRL_EOF_DETECT | CPIA2_VC_ST_CTRL_FIFO_ENABLE;
640
641 cpia2_send_command(cam, &cmd);
642
643 cpia2_set_high_power(cam);
644
645 if (cam->params.pnp_id.device_type == DEVICE_STV_672) {
646 /* Enable button notification */
647 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_SYSTEM;
648 cmd.buffer.registers[0].index = CPIA2_SYSTEM_INT_PACKET_CTRL;
649 cmd.buffer.registers[0].value =
650 CPIA2_SYSTEM_INT_PACKET_CTRL_ENABLE_SW_XX;
651 cmd.reg_count = 1;
652 cpia2_send_command(cam, &cmd);
653 }
654
655 schedule_timeout_interruptible(msecs_to_jiffies(100));
656
657 if (cam->params.pnp_id.device_type == DEVICE_STV_672)
658 retval = apply_vp_patch(cam);
659
660 /* wait for vp to go to sleep */
661 schedule_timeout_interruptible(msecs_to_jiffies(100));
662
663 /***
664 * If this is a 676, apply VP5 fixes before we start streaming
665 ***/
666 if (cam->params.pnp_id.device_type == DEVICE_STV_676) {
667 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VP;
668
669 /* The following writes improve the picture */
670 cmd.buffer.registers[0].index = CPIA2_VP5_MYBLACK_LEVEL;
671 cmd.buffer.registers[0].value = 0; /* reduce from the default
672 * rec 601 pedestal of 16 */
673 cmd.buffer.registers[1].index = CPIA2_VP5_MCYRANGE;
674 cmd.buffer.registers[1].value = 0x92; /* increase from 100% to
675 * (256/256 - 31) to fill
676 * available range */
677 cmd.buffer.registers[2].index = CPIA2_VP5_MYCEILING;
678 cmd.buffer.registers[2].value = 0xFF; /* Increase from the
679 * default rec 601 ceiling
680 * of 240 */
681 cmd.buffer.registers[3].index = CPIA2_VP5_MCUVSATURATION;
682 cmd.buffer.registers[3].value = 0xFF; /* Increase from the rec
683 * 601 100% level (128)
684 * to 145-192 */
685 cmd.buffer.registers[4].index = CPIA2_VP5_ANTIFLKRSETUP;
686 cmd.buffer.registers[4].value = 0x80; /* Inhibit the
687 * anti-flicker */
688
689 /* The following 4 writes are a fix to allow QVGA to work at 30 fps */
690 cmd.buffer.registers[5].index = CPIA2_VP_RAM_ADDR_H;
691 cmd.buffer.registers[5].value = 0x01;
692 cmd.buffer.registers[6].index = CPIA2_VP_RAM_ADDR_L;
693 cmd.buffer.registers[6].value = 0xE3;
694 cmd.buffer.registers[7].index = CPIA2_VP_RAM_DATA;
695 cmd.buffer.registers[7].value = 0x02;
696 cmd.buffer.registers[8].index = CPIA2_VP_RAM_DATA;
697 cmd.buffer.registers[8].value = 0xFC;
698
699 cmd.direction = TRANSFER_WRITE;
700 cmd.reg_count = 9;
701
702 cpia2_send_command(cam, &cmd);
703 }
704
705 /* Activate all settings and start the data stream */
706 /* Set user mode */
707 set_default_user_mode(cam);
708
709 /* Give VP time to wake up */
710 schedule_timeout_interruptible(msecs_to_jiffies(100));
711
712 set_all_properties(cam);
713
714 cpia2_do_command(cam, CPIA2_CMD_GET_USER_MODE, TRANSFER_READ, 0);
715 DBG("After SetAllProperties(cam), user mode is 0x%0X\n",
716 cam->params.vp_params.video_mode);
717
718 /***
719 * Set audio regulator off. This and the code to set the compresison
720 * state are too complex to form a CPIA2_CMD_, and seem to be somewhat
721 * intertwined. This stuff came straight from the windows driver.
722 ***/
723 /* Turn AutoExposure off in VP and enable the serial bridge to the sensor */
724 cpia2_do_command(cam, CPIA2_CMD_GET_VP_SYSTEM_CTRL, TRANSFER_READ, 0);
725 tmp_reg = cam->params.vp_params.system_ctrl;
726 cmd.buffer.registers[0].value = tmp_reg &
727 (tmp_reg & (CPIA2_VP_SYSTEMCTRL_HK_CONTROL ^ 0xFF));
728
729 cpia2_do_command(cam, CPIA2_CMD_GET_DEVICE_CONFIG, TRANSFER_READ, 0);
730 cmd.buffer.registers[1].value = cam->params.vp_params.device_config |
731 CPIA2_VP_DEVICE_CONFIG_SERIAL_BRIDGE;
732 cmd.buffer.registers[0].index = CPIA2_VP_SYSTEMCTRL;
733 cmd.buffer.registers[1].index = CPIA2_VP_DEVICE_CONFIG;
734 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VP;
735 cmd.reg_count = 2;
736 cmd.direction = TRANSFER_WRITE;
737 cmd.start = 0;
738 cpia2_send_command(cam, &cmd);
739
740 /* Set the correct I2C address in the CPiA-2 system register */
741 cpia2_do_command(cam,
742 CPIA2_CMD_SET_SERIAL_ADDR,
743 TRANSFER_WRITE,
744 CPIA2_SYSTEM_VP_SERIAL_ADDR_SENSOR);
745
746 /* Now have sensor access - set bit to turn the audio regulator off */
747 cpia2_do_command(cam,
748 CPIA2_CMD_SET_SENSOR_CR1,
749 TRANSFER_WRITE, CPIA2_SENSOR_CR1_DOWN_AUDIO_REGULATOR);
750
751 /* Set the correct I2C address in the CPiA-2 system register */
752 if (cam->params.pnp_id.device_type == DEVICE_STV_672)
753 cpia2_do_command(cam,
754 CPIA2_CMD_SET_SERIAL_ADDR,
755 TRANSFER_WRITE,
756 CPIA2_SYSTEM_VP_SERIAL_ADDR_VP); // 0x88
757 else
758 cpia2_do_command(cam,
759 CPIA2_CMD_SET_SERIAL_ADDR,
760 TRANSFER_WRITE,
761 CPIA2_SYSTEM_VP_SERIAL_ADDR_676_VP); // 0x8a
762
763 /* increase signal drive strength */
764 if (cam->params.pnp_id.device_type == DEVICE_STV_676)
765 cpia2_do_command(cam,
766 CPIA2_CMD_SET_VP_EXP_MODES,
767 TRANSFER_WRITE,
768 CPIA2_VP_EXPOSURE_MODES_COMPILE_EXP);
769
770 /* Start autoexposure */
771 cpia2_do_command(cam, CPIA2_CMD_GET_DEVICE_CONFIG, TRANSFER_READ, 0);
772 cmd.buffer.registers[0].value = cam->params.vp_params.device_config &
773 (CPIA2_VP_DEVICE_CONFIG_SERIAL_BRIDGE ^ 0xFF);
774
775 cpia2_do_command(cam, CPIA2_CMD_GET_VP_SYSTEM_CTRL, TRANSFER_READ, 0);
776 cmd.buffer.registers[1].value =
777 cam->params.vp_params.system_ctrl | CPIA2_VP_SYSTEMCTRL_HK_CONTROL;
778
779 cmd.buffer.registers[0].index = CPIA2_VP_DEVICE_CONFIG;
780 cmd.buffer.registers[1].index = CPIA2_VP_SYSTEMCTRL;
781 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VP;
782 cmd.reg_count = 2;
783 cmd.direction = TRANSFER_WRITE;
784
785 cpia2_send_command(cam, &cmd);
786
787 /* Set compression state */
788 cpia2_do_command(cam, CPIA2_CMD_GET_VC_CONTROL, TRANSFER_READ, 0);
789 if (cam->params.compression.inhibit_htables) {
790 tmp_reg = cam->params.vc_params.vc_control |
791 CPIA2_VC_VC_CTRL_INHIBIT_H_TABLES;
792 } else {
793 tmp_reg = cam->params.vc_params.vc_control &
794 ~CPIA2_VC_VC_CTRL_INHIBIT_H_TABLES;
795 }
796 cpia2_do_command(cam, CPIA2_CMD_SET_VC_CONTROL, TRANSFER_WRITE,tmp_reg);
797
798 /* Set target size (kb) on vc
799 This is a heuristic based on the quality parameter and the raw
800 framesize in kB divided by 16 (the compression factor when the
801 quality is 100%) */
802 target_kb = (cam->width * cam->height * 2 / 16384) *
803 cam->params.vc_params.quality / 100;
804 if (target_kb < 1)
805 target_kb = 1;
806 cpia2_do_command(cam, CPIA2_CMD_SET_TARGET_KB,
807 TRANSFER_WRITE, target_kb);
808
809 /* Wiggle VC Reset */
810 /***
811 * First read and wait a bit.
812 ***/
813 for (i = 0; i < 50; i++) {
814 cpia2_do_command(cam, CPIA2_CMD_GET_PW_CONTROL,
815 TRANSFER_READ, 0);
816 }
817
818 tmp_reg = cam->params.vc_params.pw_control;
819 tmp_reg &= ~CPIA2_VC_PW_CTRL_VC_RESET_N;
820
821 cpia2_do_command(cam, CPIA2_CMD_SET_PW_CONTROL, TRANSFER_WRITE,tmp_reg);
822
823 tmp_reg |= CPIA2_VC_PW_CTRL_VC_RESET_N;
824 cpia2_do_command(cam, CPIA2_CMD_SET_PW_CONTROL, TRANSFER_WRITE,tmp_reg);
825
826 cpia2_do_command(cam, CPIA2_CMD_SET_DEF_JPEG_OPT, TRANSFER_WRITE, 0);
827
828 cpia2_do_command(cam, CPIA2_CMD_GET_USER_MODE, TRANSFER_READ, 0);
829 DBG("After VC RESET, user mode is 0x%0X\n",
830 cam->params.vp_params.video_mode);
831
832 return retval;
833 }
834
835 /******************************************************************************
836 *
837 * cpia2_set_high_power
838 *
839 *****************************************************************************/
840 static int cpia2_set_high_power(struct camera_data *cam)
841 {
842 int i;
843 for (i = 0; i <= 50; i++) {
844 /* Read system status */
845 cpia2_do_command(cam,CPIA2_CMD_GET_SYSTEM_CTRL,TRANSFER_READ,0);
846
847 /* If there is an error, clear it */
848 if(cam->params.camera_state.system_ctrl &
849 CPIA2_SYSTEM_CONTROL_V2W_ERR)
850 cpia2_do_command(cam, CPIA2_CMD_CLEAR_V2W_ERR,
851 TRANSFER_WRITE, 0);
852
853 /* Try to set high power mode */
854 cpia2_do_command(cam, CPIA2_CMD_SET_SYSTEM_CTRL,
855 TRANSFER_WRITE, 1);
856
857 /* Try to read something in VP to check if everything is awake */
858 cpia2_do_command(cam, CPIA2_CMD_GET_VP_SYSTEM_STATE,
859 TRANSFER_READ, 0);
860 if (cam->params.vp_params.system_state &
861 CPIA2_VP_SYSTEMSTATE_HK_ALIVE) {
862 break;
863 } else if (i == 50) {
864 cam->params.camera_state.power_mode = LO_POWER_MODE;
865 ERR("Camera did not wake up\n");
866 return -EIO;
867 }
868 }
869
870 DBG("System now in high power state\n");
871 cam->params.camera_state.power_mode = HI_POWER_MODE;
872 return 0;
873 }
874
875 /******************************************************************************
876 *
877 * cpia2_set_low_power
878 *
879 *****************************************************************************/
880 int cpia2_set_low_power(struct camera_data *cam)
881 {
882 cam->params.camera_state.power_mode = LO_POWER_MODE;
883 cpia2_do_command(cam, CPIA2_CMD_SET_SYSTEM_CTRL, TRANSFER_WRITE, 0);
884 return 0;
885 }
886
887 /******************************************************************************
888 *
889 * apply_vp_patch
890 *
891 *****************************************************************************/
892 static int cpia2_send_onebyte_command(struct camera_data *cam,
893 struct cpia2_command *cmd,
894 u8 start, u8 datum)
895 {
896 cmd->buffer.block_data[0] = datum;
897 cmd->start = start;
898 cmd->reg_count = 1;
899 return cpia2_send_command(cam, cmd);
900 }
901
902 static int apply_vp_patch(struct camera_data *cam)
903 {
904 const struct firmware *fw;
905 const char fw_name[] = FIRMWARE;
906 int i, ret;
907 struct cpia2_command cmd;
908
909 ret = request_firmware(&fw, fw_name, &cam->dev->dev);
910 if (ret) {
911 printk(KERN_ERR "cpia2: failed to load VP patch \"%s\"\n",
912 fw_name);
913 return ret;
914 }
915
916 cmd.req_mode = CAMERAACCESS_TYPE_REPEAT | CAMERAACCESS_VP;
917 cmd.direction = TRANSFER_WRITE;
918
919 /* First send the start address... */
920 cpia2_send_onebyte_command(cam, &cmd, 0x0A, fw->data[0]); /* hi */
921 cpia2_send_onebyte_command(cam, &cmd, 0x0B, fw->data[1]); /* lo */
922
923 /* ... followed by the data payload */
924 for (i = 2; i < fw->size; i += 64) {
925 cmd.start = 0x0C; /* Data */
926 cmd.reg_count = min_t(int, 64, fw->size - i);
927 memcpy(cmd.buffer.block_data, &fw->data[i], cmd.reg_count);
928 cpia2_send_command(cam, &cmd);
929 }
930
931 /* Next send the start address... */
932 cpia2_send_onebyte_command(cam, &cmd, 0x0A, fw->data[0]); /* hi */
933 cpia2_send_onebyte_command(cam, &cmd, 0x0B, fw->data[1]); /* lo */
934
935 /* ... followed by the 'goto' command */
936 cpia2_send_onebyte_command(cam, &cmd, 0x0D, 1);
937
938 release_firmware(fw);
939 return 0;
940 }
941
942 /******************************************************************************
943 *
944 * set_default_user_mode
945 *
946 *****************************************************************************/
947 static int set_default_user_mode(struct camera_data *cam)
948 {
949 unsigned char user_mode;
950 unsigned char frame_rate;
951 int width = cam->params.roi.width;
952 int height = cam->params.roi.height;
953
954 switch (cam->params.version.sensor_flags) {
955 case CPIA2_VP_SENSOR_FLAGS_404:
956 case CPIA2_VP_SENSOR_FLAGS_407:
957 case CPIA2_VP_SENSOR_FLAGS_409:
958 case CPIA2_VP_SENSOR_FLAGS_410:
959 if ((width > STV_IMAGE_QCIF_COLS)
960 || (height > STV_IMAGE_QCIF_ROWS)) {
961 user_mode = CPIA2_VP_USER_MODE_CIF;
962 } else {
963 user_mode = CPIA2_VP_USER_MODE_QCIFDS;
964 }
965 frame_rate = CPIA2_VP_FRAMERATE_30;
966 break;
967 case CPIA2_VP_SENSOR_FLAGS_500:
968 if ((width > STV_IMAGE_CIF_COLS)
969 || (height > STV_IMAGE_CIF_ROWS)) {
970 user_mode = CPIA2_VP_USER_MODE_VGA;
971 } else {
972 user_mode = CPIA2_VP_USER_MODE_QVGADS;
973 }
974 if (cam->params.pnp_id.device_type == DEVICE_STV_672)
975 frame_rate = CPIA2_VP_FRAMERATE_15;
976 else
977 frame_rate = CPIA2_VP_FRAMERATE_30;
978 break;
979 default:
980 LOG("%s: Invalid sensor flag value 0x%0X\n",__func__,
981 cam->params.version.sensor_flags);
982 return -EINVAL;
983 }
984
985 DBG("Sensor flag = 0x%0x, user mode = 0x%0x, frame rate = 0x%X\n",
986 cam->params.version.sensor_flags, user_mode, frame_rate);
987 cpia2_do_command(cam, CPIA2_CMD_SET_USER_MODE, TRANSFER_WRITE,
988 user_mode);
989 if(cam->params.vp_params.frame_rate > 0 &&
990 frame_rate > cam->params.vp_params.frame_rate)
991 frame_rate = cam->params.vp_params.frame_rate;
992
993 cpia2_set_fps(cam, frame_rate);
994
995 // if (cam->params.pnp_id.device_type == DEVICE_STV_676)
996 // cpia2_do_command(cam,
997 // CPIA2_CMD_SET_VP_SYSTEM_CTRL,
998 // TRANSFER_WRITE,
999 // CPIA2_VP_SYSTEMCTRL_HK_CONTROL |
1000 // CPIA2_VP_SYSTEMCTRL_POWER_CONTROL);
1001
1002 return 0;
1003 }
1004
1005 /******************************************************************************
1006 *
1007 * cpia2_match_video_size
1008 *
1009 * return the best match, where 'best' is as always
1010 * the largest that is not bigger than what is requested.
1011 *****************************************************************************/
1012 int cpia2_match_video_size(int width, int height)
1013 {
1014 if (width >= STV_IMAGE_VGA_COLS && height >= STV_IMAGE_VGA_ROWS)
1015 return VIDEOSIZE_VGA;
1016
1017 if (width >= STV_IMAGE_CIF_COLS && height >= STV_IMAGE_CIF_ROWS)
1018 return VIDEOSIZE_CIF;
1019
1020 if (width >= STV_IMAGE_QVGA_COLS && height >= STV_IMAGE_QVGA_ROWS)
1021 return VIDEOSIZE_QVGA;
1022
1023 if (width >= 288 && height >= 216)
1024 return VIDEOSIZE_288_216;
1025
1026 if (width >= 256 && height >= 192)
1027 return VIDEOSIZE_256_192;
1028
1029 if (width >= 224 && height >= 168)
1030 return VIDEOSIZE_224_168;
1031
1032 if (width >= 192 && height >= 144)
1033 return VIDEOSIZE_192_144;
1034
1035 if (width >= STV_IMAGE_QCIF_COLS && height >= STV_IMAGE_QCIF_ROWS)
1036 return VIDEOSIZE_QCIF;
1037
1038 return -1;
1039 }
1040
1041 /******************************************************************************
1042 *
1043 * SetVideoSize
1044 *
1045 *****************************************************************************/
1046 static int set_vw_size(struct camera_data *cam, int size)
1047 {
1048 int retval = 0;
1049
1050 cam->params.vp_params.video_size = size;
1051
1052 switch (size) {
1053 case VIDEOSIZE_VGA:
1054 DBG("Setting size to VGA\n");
1055 cam->params.roi.width = STV_IMAGE_VGA_COLS;
1056 cam->params.roi.height = STV_IMAGE_VGA_ROWS;
1057 cam->width = STV_IMAGE_VGA_COLS;
1058 cam->height = STV_IMAGE_VGA_ROWS;
1059 break;
1060 case VIDEOSIZE_CIF:
1061 DBG("Setting size to CIF\n");
1062 cam->params.roi.width = STV_IMAGE_CIF_COLS;
1063 cam->params.roi.height = STV_IMAGE_CIF_ROWS;
1064 cam->width = STV_IMAGE_CIF_COLS;
1065 cam->height = STV_IMAGE_CIF_ROWS;
1066 break;
1067 case VIDEOSIZE_QVGA:
1068 DBG("Setting size to QVGA\n");
1069 cam->params.roi.width = STV_IMAGE_QVGA_COLS;
1070 cam->params.roi.height = STV_IMAGE_QVGA_ROWS;
1071 cam->width = STV_IMAGE_QVGA_COLS;
1072 cam->height = STV_IMAGE_QVGA_ROWS;
1073 break;
1074 case VIDEOSIZE_288_216:
1075 cam->params.roi.width = 288;
1076 cam->params.roi.height = 216;
1077 cam->width = 288;
1078 cam->height = 216;
1079 break;
1080 case VIDEOSIZE_256_192:
1081 cam->width = 256;
1082 cam->height = 192;
1083 cam->params.roi.width = 256;
1084 cam->params.roi.height = 192;
1085 break;
1086 case VIDEOSIZE_224_168:
1087 cam->width = 224;
1088 cam->height = 168;
1089 cam->params.roi.width = 224;
1090 cam->params.roi.height = 168;
1091 break;
1092 case VIDEOSIZE_192_144:
1093 cam->width = 192;
1094 cam->height = 144;
1095 cam->params.roi.width = 192;
1096 cam->params.roi.height = 144;
1097 break;
1098 case VIDEOSIZE_QCIF:
1099 DBG("Setting size to QCIF\n");
1100 cam->params.roi.width = STV_IMAGE_QCIF_COLS;
1101 cam->params.roi.height = STV_IMAGE_QCIF_ROWS;
1102 cam->width = STV_IMAGE_QCIF_COLS;
1103 cam->height = STV_IMAGE_QCIF_ROWS;
1104 break;
1105 default:
1106 retval = -EINVAL;
1107 }
1108 return retval;
1109 }
1110
1111 /******************************************************************************
1112 *
1113 * configure_sensor
1114 *
1115 *****************************************************************************/
1116 static int configure_sensor(struct camera_data *cam,
1117 int req_width, int req_height)
1118 {
1119 int retval;
1120
1121 switch (cam->params.version.sensor_flags) {
1122 case CPIA2_VP_SENSOR_FLAGS_404:
1123 case CPIA2_VP_SENSOR_FLAGS_407:
1124 case CPIA2_VP_SENSOR_FLAGS_409:
1125 case CPIA2_VP_SENSOR_FLAGS_410:
1126 retval = config_sensor_410(cam, req_width, req_height);
1127 break;
1128 case CPIA2_VP_SENSOR_FLAGS_500:
1129 retval = config_sensor_500(cam, req_width, req_height);
1130 break;
1131 default:
1132 return -EINVAL;
1133 }
1134
1135 return retval;
1136 }
1137
1138 /******************************************************************************
1139 *
1140 * config_sensor_410
1141 *
1142 *****************************************************************************/
1143 static int config_sensor_410(struct camera_data *cam,
1144 int req_width, int req_height)
1145 {
1146 struct cpia2_command cmd;
1147 int i = 0;
1148 int image_size;
1149 int image_type;
1150 int width = req_width;
1151 int height = req_height;
1152
1153 /***
1154 * Make sure size doesn't exceed CIF.
1155 ***/
1156 if (width > STV_IMAGE_CIF_COLS)
1157 width = STV_IMAGE_CIF_COLS;
1158 if (height > STV_IMAGE_CIF_ROWS)
1159 height = STV_IMAGE_CIF_ROWS;
1160
1161 image_size = cpia2_match_video_size(width, height);
1162
1163 DBG("Config 410: width = %d, height = %d\n", width, height);
1164 DBG("Image size returned is %d\n", image_size);
1165 if (image_size >= 0) {
1166 set_vw_size(cam, image_size);
1167 width = cam->params.roi.width;
1168 height = cam->params.roi.height;
1169
1170 DBG("After set_vw_size(), width = %d, height = %d\n",
1171 width, height);
1172 if (width <= 176 && height <= 144) {
1173 DBG("image type = VIDEOSIZE_QCIF\n");
1174 image_type = VIDEOSIZE_QCIF;
1175 }
1176 else if (width <= 320 && height <= 240) {
1177 DBG("image type = VIDEOSIZE_QVGA\n");
1178 image_type = VIDEOSIZE_QVGA;
1179 }
1180 else {
1181 DBG("image type = VIDEOSIZE_CIF\n");
1182 image_type = VIDEOSIZE_CIF;
1183 }
1184 } else {
1185 ERR("ConfigSensor410 failed\n");
1186 return -EINVAL;
1187 }
1188
1189 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
1190 cmd.direction = TRANSFER_WRITE;
1191
1192 /* VC Format */
1193 cmd.buffer.registers[i].index = CPIA2_VC_VC_FORMAT;
1194 if (image_type == VIDEOSIZE_CIF) {
1195 cmd.buffer.registers[i++].value =
1196 (u8) (CPIA2_VC_VC_FORMAT_UFIRST |
1197 CPIA2_VC_VC_FORMAT_SHORTLINE);
1198 } else {
1199 cmd.buffer.registers[i++].value =
1200 (u8) CPIA2_VC_VC_FORMAT_UFIRST;
1201 }
1202
1203 /* VC Clocks */
1204 cmd.buffer.registers[i].index = CPIA2_VC_VC_CLOCKS;
1205 if (image_type == VIDEOSIZE_QCIF) {
1206 if (cam->params.pnp_id.device_type == DEVICE_STV_672) {
1207 cmd.buffer.registers[i++].value=
1208 (u8)(CPIA2_VC_VC_672_CLOCKS_CIF_DIV_BY_3 |
1209 CPIA2_VC_VC_672_CLOCKS_SCALING |
1210 CPIA2_VC_VC_CLOCKS_LOGDIV2);
1211 DBG("VC_Clocks (0xc4) should be B\n");
1212 }
1213 else {
1214 cmd.buffer.registers[i++].value=
1215 (u8)(CPIA2_VC_VC_676_CLOCKS_CIF_DIV_BY_3 |
1216 CPIA2_VC_VC_CLOCKS_LOGDIV2);
1217 }
1218 } else {
1219 if (cam->params.pnp_id.device_type == DEVICE_STV_672) {
1220 cmd.buffer.registers[i++].value =
1221 (u8) (CPIA2_VC_VC_672_CLOCKS_CIF_DIV_BY_3 |
1222 CPIA2_VC_VC_CLOCKS_LOGDIV0);
1223 }
1224 else {
1225 cmd.buffer.registers[i++].value =
1226 (u8) (CPIA2_VC_VC_676_CLOCKS_CIF_DIV_BY_3 |
1227 CPIA2_VC_VC_676_CLOCKS_SCALING |
1228 CPIA2_VC_VC_CLOCKS_LOGDIV0);
1229 }
1230 }
1231 DBG("VC_Clocks (0xc4) = 0x%0X\n", cmd.buffer.registers[i-1].value);
1232
1233 /* Input reqWidth from VC */
1234 cmd.buffer.registers[i].index = CPIA2_VC_VC_IHSIZE_LO;
1235 if (image_type == VIDEOSIZE_QCIF)
1236 cmd.buffer.registers[i++].value =
1237 (u8) (STV_IMAGE_QCIF_COLS / 4);
1238 else
1239 cmd.buffer.registers[i++].value =
1240 (u8) (STV_IMAGE_CIF_COLS / 4);
1241
1242 /* Timings */
1243 cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_HI;
1244 if (image_type == VIDEOSIZE_QCIF)
1245 cmd.buffer.registers[i++].value = (u8) 0;
1246 else
1247 cmd.buffer.registers[i++].value = (u8) 1;
1248
1249 cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_LO;
1250 if (image_type == VIDEOSIZE_QCIF)
1251 cmd.buffer.registers[i++].value = (u8) 208;
1252 else
1253 cmd.buffer.registers[i++].value = (u8) 160;
1254
1255 cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_HI;
1256 if (image_type == VIDEOSIZE_QCIF)
1257 cmd.buffer.registers[i++].value = (u8) 0;
1258 else
1259 cmd.buffer.registers[i++].value = (u8) 1;
1260
1261 cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_LO;
1262 if (image_type == VIDEOSIZE_QCIF)
1263 cmd.buffer.registers[i++].value = (u8) 160;
1264 else
1265 cmd.buffer.registers[i++].value = (u8) 64;
1266
1267 /* Output Image Size */
1268 cmd.buffer.registers[i].index = CPIA2_VC_VC_OHSIZE;
1269 cmd.buffer.registers[i++].value = cam->params.roi.width / 4;
1270
1271 cmd.buffer.registers[i].index = CPIA2_VC_VC_OVSIZE;
1272 cmd.buffer.registers[i++].value = cam->params.roi.height / 4;
1273
1274 /* Cropping */
1275 cmd.buffer.registers[i].index = CPIA2_VC_VC_HCROP;
1276 if (image_type == VIDEOSIZE_QCIF)
1277 cmd.buffer.registers[i++].value =
1278 (u8) (((STV_IMAGE_QCIF_COLS / 4) - (width / 4)) / 2);
1279 else
1280 cmd.buffer.registers[i++].value =
1281 (u8) (((STV_IMAGE_CIF_COLS / 4) - (width / 4)) / 2);
1282
1283 cmd.buffer.registers[i].index = CPIA2_VC_VC_VCROP;
1284 if (image_type == VIDEOSIZE_QCIF)
1285 cmd.buffer.registers[i++].value =
1286 (u8) (((STV_IMAGE_QCIF_ROWS / 4) - (height / 4)) / 2);
1287 else
1288 cmd.buffer.registers[i++].value =
1289 (u8) (((STV_IMAGE_CIF_ROWS / 4) - (height / 4)) / 2);
1290
1291 /* Scaling registers (defaults) */
1292 cmd.buffer.registers[i].index = CPIA2_VC_VC_HPHASE;
1293 cmd.buffer.registers[i++].value = (u8) 0;
1294
1295 cmd.buffer.registers[i].index = CPIA2_VC_VC_VPHASE;
1296 cmd.buffer.registers[i++].value = (u8) 0;
1297
1298 cmd.buffer.registers[i].index = CPIA2_VC_VC_HISPAN;
1299 cmd.buffer.registers[i++].value = (u8) 31;
1300
1301 cmd.buffer.registers[i].index = CPIA2_VC_VC_VISPAN;
1302 cmd.buffer.registers[i++].value = (u8) 31;
1303
1304 cmd.buffer.registers[i].index = CPIA2_VC_VC_HICROP;
1305 cmd.buffer.registers[i++].value = (u8) 0;
1306
1307 cmd.buffer.registers[i].index = CPIA2_VC_VC_VICROP;
1308 cmd.buffer.registers[i++].value = (u8) 0;
1309
1310 cmd.buffer.registers[i].index = CPIA2_VC_VC_HFRACT;
1311 cmd.buffer.registers[i++].value = (u8) 0x81; /* = 8/1 = 8 (HIBYTE/LOBYTE) */
1312
1313 cmd.buffer.registers[i].index = CPIA2_VC_VC_VFRACT;
1314 cmd.buffer.registers[i++].value = (u8) 0x81; /* = 8/1 = 8 (HIBYTE/LOBYTE) */
1315
1316 cmd.reg_count = i;
1317
1318 cpia2_send_command(cam, &cmd);
1319
1320 return i;
1321 }
1322
1323
1324 /******************************************************************************
1325 *
1326 * config_sensor_500(cam)
1327 *
1328 *****************************************************************************/
1329 static int config_sensor_500(struct camera_data *cam,
1330 int req_width, int req_height)
1331 {
1332 struct cpia2_command cmd;
1333 int i = 0;
1334 int image_size = VIDEOSIZE_CIF;
1335 int image_type = VIDEOSIZE_VGA;
1336 int width = req_width;
1337 int height = req_height;
1338 unsigned int device = cam->params.pnp_id.device_type;
1339
1340 image_size = cpia2_match_video_size(width, height);
1341
1342 if (width > STV_IMAGE_CIF_COLS || height > STV_IMAGE_CIF_ROWS)
1343 image_type = VIDEOSIZE_VGA;
1344 else if (width > STV_IMAGE_QVGA_COLS || height > STV_IMAGE_QVGA_ROWS)
1345 image_type = VIDEOSIZE_CIF;
1346 else if (width > STV_IMAGE_QCIF_COLS || height > STV_IMAGE_QCIF_ROWS)
1347 image_type = VIDEOSIZE_QVGA;
1348 else
1349 image_type = VIDEOSIZE_QCIF;
1350
1351 if (image_size >= 0) {
1352 set_vw_size(cam, image_size);
1353 width = cam->params.roi.width;
1354 height = cam->params.roi.height;
1355 } else {
1356 ERR("ConfigSensor500 failed\n");
1357 return -EINVAL;
1358 }
1359
1360 DBG("image_size = %d, width = %d, height = %d, type = %d\n",
1361 image_size, width, height, image_type);
1362
1363 cmd.req_mode = CAMERAACCESS_TYPE_RANDOM | CAMERAACCESS_VC;
1364 cmd.direction = TRANSFER_WRITE;
1365 i = 0;
1366
1367 /* VC Format */
1368 cmd.buffer.registers[i].index = CPIA2_VC_VC_FORMAT;
1369 cmd.buffer.registers[i].value = (u8) CPIA2_VC_VC_FORMAT_UFIRST;
1370 if (image_type == VIDEOSIZE_QCIF)
1371 cmd.buffer.registers[i].value |= (u8) CPIA2_VC_VC_FORMAT_DECIMATING;
1372 i++;
1373
1374 /* VC Clocks */
1375 cmd.buffer.registers[i].index = CPIA2_VC_VC_CLOCKS;
1376 if (device == DEVICE_STV_672) {
1377 if (image_type == VIDEOSIZE_VGA)
1378 cmd.buffer.registers[i].value =
1379 (u8)CPIA2_VC_VC_CLOCKS_LOGDIV1;
1380 else
1381 cmd.buffer.registers[i].value =
1382 (u8)(CPIA2_VC_VC_672_CLOCKS_SCALING |
1383 CPIA2_VC_VC_CLOCKS_LOGDIV3);
1384 } else {
1385 if (image_type == VIDEOSIZE_VGA)
1386 cmd.buffer.registers[i].value =
1387 (u8)CPIA2_VC_VC_CLOCKS_LOGDIV0;
1388 else
1389 cmd.buffer.registers[i].value =
1390 (u8)(CPIA2_VC_VC_676_CLOCKS_SCALING |
1391 CPIA2_VC_VC_CLOCKS_LOGDIV2);
1392 }
1393 i++;
1394
1395 DBG("VC_CLOCKS = 0x%X\n", cmd.buffer.registers[i-1].value);
1396
1397 /* Input width from VP */
1398 cmd.buffer.registers[i].index = CPIA2_VC_VC_IHSIZE_LO;
1399 if (image_type == VIDEOSIZE_VGA)
1400 cmd.buffer.registers[i].value =
1401 (u8) (STV_IMAGE_VGA_COLS / 4);
1402 else
1403 cmd.buffer.registers[i].value =
1404 (u8) (STV_IMAGE_QVGA_COLS / 4);
1405 i++;
1406 DBG("Input width = %d\n", cmd.buffer.registers[i-1].value);
1407
1408 /* Timings */
1409 cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_HI;
1410 if (image_type == VIDEOSIZE_VGA)
1411 cmd.buffer.registers[i++].value = (u8) 2;
1412 else
1413 cmd.buffer.registers[i++].value = (u8) 1;
1414
1415 cmd.buffer.registers[i].index = CPIA2_VC_VC_XLIM_LO;
1416 if (image_type == VIDEOSIZE_VGA)
1417 cmd.buffer.registers[i++].value = (u8) 250;
1418 else if (image_type == VIDEOSIZE_QVGA)
1419 cmd.buffer.registers[i++].value = (u8) 125;
1420 else
1421 cmd.buffer.registers[i++].value = (u8) 160;
1422
1423 cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_HI;
1424 if (image_type == VIDEOSIZE_VGA)
1425 cmd.buffer.registers[i++].value = (u8) 2;
1426 else
1427 cmd.buffer.registers[i++].value = (u8) 1;
1428
1429 cmd.buffer.registers[i].index = CPIA2_VC_VC_YLIM_LO;
1430 if (image_type == VIDEOSIZE_VGA)
1431 cmd.buffer.registers[i++].value = (u8) 12;
1432 else if (image_type == VIDEOSIZE_QVGA)
1433 cmd.buffer.registers[i++].value = (u8) 64;
1434 else
1435 cmd.buffer.registers[i++].value = (u8) 6;
1436
1437 /* Output Image Size */
1438 cmd.buffer.registers[i].index = CPIA2_VC_VC_OHSIZE;
1439 if (image_type == VIDEOSIZE_QCIF)
1440 cmd.buffer.registers[i++].value = STV_IMAGE_CIF_COLS / 4;
1441 else
1442 cmd.buffer.registers[i++].value = width / 4;
1443
1444 cmd.buffer.registers[i].index = CPIA2_VC_VC_OVSIZE;
1445 if (image_type == VIDEOSIZE_QCIF)
1446 cmd.buffer.registers[i++].value = STV_IMAGE_CIF_ROWS / 4;
1447 else
1448 cmd.buffer.registers[i++].value = height / 4;
1449
1450 /* Cropping */
1451 cmd.buffer.registers[i].index = CPIA2_VC_VC_HCROP;
1452 if (image_type == VIDEOSIZE_VGA)
1453 cmd.buffer.registers[i++].value =
1454 (u8) (((STV_IMAGE_VGA_COLS / 4) - (width / 4)) / 2);
1455 else if (image_type == VIDEOSIZE_QVGA)
1456 cmd.buffer.registers[i++].value =
1457 (u8) (((STV_IMAGE_QVGA_COLS / 4) - (width / 4)) / 2);
1458 else if (image_type == VIDEOSIZE_CIF)
1459 cmd.buffer.registers[i++].value =
1460 (u8) (((STV_IMAGE_CIF_COLS / 4) - (width / 4)) / 2);
1461 else /*if (image_type == VIDEOSIZE_QCIF)*/
1462 cmd.buffer.registers[i++].value =
1463 (u8) (((STV_IMAGE_QCIF_COLS / 4) - (width / 4)) / 2);
1464
1465 cmd.buffer.registers[i].index = CPIA2_VC_VC_VCROP;
1466 if (image_type == VIDEOSIZE_VGA)
1467 cmd.buffer.registers[i++].value =
1468 (u8) (((STV_IMAGE_VGA_ROWS / 4) - (height / 4)) / 2);
1469 else if (image_type == VIDEOSIZE_QVGA)
1470 cmd.buffer.registers[i++].value =
1471 (u8) (((STV_IMAGE_QVGA_ROWS / 4) - (height / 4)) / 2);
1472 else if (image_type == VIDEOSIZE_CIF)
1473 cmd.buffer.registers[i++].value =
1474 (u8) (((STV_IMAGE_CIF_ROWS / 4) - (height / 4)) / 2);
1475 else /*if (image_type == VIDEOSIZE_QCIF)*/
1476 cmd.buffer.registers[i++].value =
1477 (u8) (((STV_IMAGE_QCIF_ROWS / 4) - (height / 4)) / 2);
1478
1479 /* Scaling registers (defaults) */
1480 cmd.buffer.registers[i].index = CPIA2_VC_VC_HPHASE;
1481 if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
1482 cmd.buffer.registers[i++].value = (u8) 36;
1483 else
1484 cmd.buffer.registers[i++].value = (u8) 0;
1485
1486 cmd.buffer.registers[i].index = CPIA2_VC_VC_VPHASE;
1487 if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
1488 cmd.buffer.registers[i++].value = (u8) 32;
1489 else
1490 cmd.buffer.registers[i++].value = (u8) 0;
1491
1492 cmd.buffer.registers[i].index = CPIA2_VC_VC_HISPAN;
1493 if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
1494 cmd.buffer.registers[i++].value = (u8) 26;
1495 else
1496 cmd.buffer.registers[i++].value = (u8) 31;
1497
1498 cmd.buffer.registers[i].index = CPIA2_VC_VC_VISPAN;
1499 if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
1500 cmd.buffer.registers[i++].value = (u8) 21;
1501 else
1502 cmd.buffer.registers[i++].value = (u8) 31;
1503
1504 cmd.buffer.registers[i].index = CPIA2_VC_VC_HICROP;
1505 cmd.buffer.registers[i++].value = (u8) 0;
1506
1507 cmd.buffer.registers[i].index = CPIA2_VC_VC_VICROP;
1508 cmd.buffer.registers[i++].value = (u8) 0;
1509
1510 cmd.buffer.registers[i].index = CPIA2_VC_VC_HFRACT;
1511 if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
1512 cmd.buffer.registers[i++].value = (u8) 0x2B; /* 2/11 */
1513 else
1514 cmd.buffer.registers[i++].value = (u8) 0x81; /* 8/1 */
1515
1516 cmd.buffer.registers[i].index = CPIA2_VC_VC_VFRACT;
1517 if (image_type == VIDEOSIZE_CIF || image_type == VIDEOSIZE_QCIF)
1518 cmd.buffer.registers[i++].value = (u8) 0x13; /* 1/3 */
1519 else
1520 cmd.buffer.registers[i++].value = (u8) 0x81; /* 8/1 */
1521
1522 cmd.reg_count = i;
1523
1524 cpia2_send_command(cam, &cmd);
1525
1526 return i;
1527 }
1528
1529
1530 /******************************************************************************
1531 *
1532 * setallproperties
1533 *
1534 * This sets all user changeable properties to the values in cam->params.
1535 *****************************************************************************/
1536 static int set_all_properties(struct camera_data *cam)
1537 {
1538 /**
1539 * Don't set target_kb here, it will be set later.
1540 * framerate and user_mode were already set (set_default_user_mode).
1541 **/
1542
1543 cpia2_usb_change_streaming_alternate(cam,
1544 cam->params.camera_state.stream_mode);
1545
1546 cpia2_do_command(cam,
1547 CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION,
1548 TRANSFER_WRITE, cam->params.vp_params.gpio_direction);
1549 cpia2_do_command(cam, CPIA2_CMD_SET_VC_MP_GPIO_DATA, TRANSFER_WRITE,
1550 cam->params.vp_params.gpio_data);
1551
1552 v4l2_ctrl_handler_setup(&cam->hdl);
1553
1554 wake_system(cam);
1555
1556 set_lowlight_boost(cam);
1557
1558 return 0;
1559 }
1560
1561 /******************************************************************************
1562 *
1563 * cpia2_save_camera_state
1564 *
1565 *****************************************************************************/
1566 void cpia2_save_camera_state(struct camera_data *cam)
1567 {
1568 cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, TRANSFER_READ, 0);
1569 cpia2_do_command(cam, CPIA2_CMD_GET_VC_MP_GPIO_DIRECTION, TRANSFER_READ,
1570 0);
1571 cpia2_do_command(cam, CPIA2_CMD_GET_VC_MP_GPIO_DATA, TRANSFER_READ, 0);
1572 /* Don't get framerate or target_kb. Trust the values we already have */
1573 }
1574
1575
1576 /******************************************************************************
1577 *
1578 * cpia2_set_flicker_mode
1579 *
1580 *****************************************************************************/
1581 int cpia2_set_flicker_mode(struct camera_data *cam, int mode)
1582 {
1583 unsigned char cam_reg;
1584 int err = 0;
1585
1586 if(cam->params.pnp_id.device_type != DEVICE_STV_672)
1587 return -EINVAL;
1588
1589 /* Set the appropriate bits in FLICKER_MODES, preserving the rest */
1590 if((err = cpia2_do_command(cam, CPIA2_CMD_GET_FLICKER_MODES,
1591 TRANSFER_READ, 0)))
1592 return err;
1593 cam_reg = cam->params.flicker_control.cam_register;
1594
1595 switch(mode) {
1596 case NEVER_FLICKER:
1597 cam_reg |= CPIA2_VP_FLICKER_MODES_NEVER_FLICKER;
1598 cam_reg &= ~CPIA2_VP_FLICKER_MODES_50HZ;
1599 break;
1600 case FLICKER_60:
1601 cam_reg &= ~CPIA2_VP_FLICKER_MODES_NEVER_FLICKER;
1602 cam_reg &= ~CPIA2_VP_FLICKER_MODES_50HZ;
1603 break;
1604 case FLICKER_50:
1605 cam_reg &= ~CPIA2_VP_FLICKER_MODES_NEVER_FLICKER;
1606 cam_reg |= CPIA2_VP_FLICKER_MODES_50HZ;
1607 break;
1608 default:
1609 return -EINVAL;
1610 }
1611
1612 if((err = cpia2_do_command(cam, CPIA2_CMD_SET_FLICKER_MODES,
1613 TRANSFER_WRITE, cam_reg)))
1614 return err;
1615
1616 /* Set the appropriate bits in EXP_MODES, preserving the rest */
1617 if((err = cpia2_do_command(cam, CPIA2_CMD_GET_VP_EXP_MODES,
1618 TRANSFER_READ, 0)))
1619 return err;
1620 cam_reg = cam->params.vp_params.exposure_modes;
1621
1622 if (mode == NEVER_FLICKER) {
1623 cam_reg |= CPIA2_VP_EXPOSURE_MODES_INHIBIT_FLICKER;
1624 } else {
1625 cam_reg &= ~CPIA2_VP_EXPOSURE_MODES_INHIBIT_FLICKER;
1626 }
1627
1628 if((err = cpia2_do_command(cam, CPIA2_CMD_SET_VP_EXP_MODES,
1629 TRANSFER_WRITE, cam_reg)))
1630 return err;
1631
1632 if((err = cpia2_do_command(cam, CPIA2_CMD_REHASH_VP4,
1633 TRANSFER_WRITE, 1)))
1634 return err;
1635
1636 switch(mode) {
1637 case NEVER_FLICKER:
1638 case FLICKER_60:
1639 case FLICKER_50:
1640 cam->params.flicker_control.flicker_mode_req = mode;
1641 break;
1642 default:
1643 err = -EINVAL;
1644 }
1645
1646 return err;
1647 }
1648
1649 /******************************************************************************
1650 *
1651 * cpia2_set_property_flip
1652 *
1653 *****************************************************************************/
1654 void cpia2_set_property_flip(struct camera_data *cam, int prop_val)
1655 {
1656 unsigned char cam_reg;
1657
1658 cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, TRANSFER_READ, 0);
1659 cam_reg = cam->params.vp_params.user_effects;
1660
1661 if (prop_val)
1662 {
1663 cam_reg |= CPIA2_VP_USER_EFFECTS_FLIP;
1664 }
1665 else
1666 {
1667 cam_reg &= ~CPIA2_VP_USER_EFFECTS_FLIP;
1668 }
1669 cam->params.vp_params.user_effects = cam_reg;
1670 cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE,
1671 cam_reg);
1672 }
1673
1674 /******************************************************************************
1675 *
1676 * cpia2_set_property_mirror
1677 *
1678 *****************************************************************************/
1679 void cpia2_set_property_mirror(struct camera_data *cam, int prop_val)
1680 {
1681 unsigned char cam_reg;
1682
1683 cpia2_do_command(cam, CPIA2_CMD_GET_USER_EFFECTS, TRANSFER_READ, 0);
1684 cam_reg = cam->params.vp_params.user_effects;
1685
1686 if (prop_val)
1687 {
1688 cam_reg |= CPIA2_VP_USER_EFFECTS_MIRROR;
1689 }
1690 else
1691 {
1692 cam_reg &= ~CPIA2_VP_USER_EFFECTS_MIRROR;
1693 }
1694 cam->params.vp_params.user_effects = cam_reg;
1695 cpia2_do_command(cam, CPIA2_CMD_SET_USER_EFFECTS, TRANSFER_WRITE,
1696 cam_reg);
1697 }
1698
1699 /******************************************************************************
1700 *
1701 * cpia2_set_gpio
1702 *
1703 *****************************************************************************/
1704 int cpia2_set_gpio(struct camera_data *cam, unsigned char setting)
1705 {
1706 int ret;
1707
1708 /* Set the microport direction (register 0x90, should be defined
1709 * already) to 1 (user output), and set the microport data (0x91) to
1710 * the value in the ioctl argument.
1711 */
1712
1713 ret = cpia2_do_command(cam,
1714 CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION,
1715 CPIA2_VC_MP_DIR_OUTPUT,
1716 255);
1717 if (ret < 0)
1718 return ret;
1719 cam->params.vp_params.gpio_direction = 255;
1720
1721 ret = cpia2_do_command(cam,
1722 CPIA2_CMD_SET_VC_MP_GPIO_DATA,
1723 CPIA2_VC_MP_DIR_OUTPUT,
1724 setting);
1725 if (ret < 0)
1726 return ret;
1727 cam->params.vp_params.gpio_data = setting;
1728
1729 return 0;
1730 }
1731
1732 /******************************************************************************
1733 *
1734 * cpia2_set_fps
1735 *
1736 *****************************************************************************/
1737 int cpia2_set_fps(struct camera_data *cam, int framerate)
1738 {
1739 int retval;
1740
1741 switch(framerate) {
1742 case CPIA2_VP_FRAMERATE_30:
1743 case CPIA2_VP_FRAMERATE_25:
1744 if(cam->params.pnp_id.device_type == DEVICE_STV_672 &&
1745 cam->params.version.sensor_flags ==
1746 CPIA2_VP_SENSOR_FLAGS_500) {
1747 return -EINVAL;
1748 }
1749 /* Fall through */
1750 case CPIA2_VP_FRAMERATE_15:
1751 case CPIA2_VP_FRAMERATE_12_5:
1752 case CPIA2_VP_FRAMERATE_7_5:
1753 case CPIA2_VP_FRAMERATE_6_25:
1754 break;
1755 default:
1756 return -EINVAL;
1757 }
1758
1759 if (cam->params.pnp_id.device_type == DEVICE_STV_672 &&
1760 framerate == CPIA2_VP_FRAMERATE_15)
1761 framerate = 0; /* Work around bug in VP4 */
1762
1763 retval = cpia2_do_command(cam,
1764 CPIA2_CMD_FRAMERATE_REQ,
1765 TRANSFER_WRITE,
1766 framerate);
1767
1768 if(retval == 0)
1769 cam->params.vp_params.frame_rate = framerate;
1770
1771 return retval;
1772 }
1773
1774 /******************************************************************************
1775 *
1776 * cpia2_set_brightness
1777 *
1778 *****************************************************************************/
1779 void cpia2_set_brightness(struct camera_data *cam, unsigned char value)
1780 {
1781 /***
1782 * Don't let the register be set to zero - bug in VP4 - flash of full
1783 * brightness
1784 ***/
1785 if (cam->params.pnp_id.device_type == DEVICE_STV_672 && value == 0)
1786 value++;
1787 DBG("Setting brightness to %d (0x%0x)\n", value, value);
1788 cpia2_do_command(cam, CPIA2_CMD_SET_VP_BRIGHTNESS, TRANSFER_WRITE, value);
1789 }
1790
1791 /******************************************************************************
1792 *
1793 * cpia2_set_contrast
1794 *
1795 *****************************************************************************/
1796 void cpia2_set_contrast(struct camera_data *cam, unsigned char value)
1797 {
1798 DBG("Setting contrast to %d (0x%0x)\n", value, value);
1799 cpia2_do_command(cam, CPIA2_CMD_SET_CONTRAST, TRANSFER_WRITE, value);
1800 }
1801
1802 /******************************************************************************
1803 *
1804 * cpia2_set_saturation
1805 *
1806 *****************************************************************************/
1807 void cpia2_set_saturation(struct camera_data *cam, unsigned char value)
1808 {
1809 DBG("Setting saturation to %d (0x%0x)\n", value, value);
1810 cpia2_do_command(cam,CPIA2_CMD_SET_VP_SATURATION, TRANSFER_WRITE,value);
1811 }
1812
1813 /******************************************************************************
1814 *
1815 * wake_system
1816 *
1817 *****************************************************************************/
1818 static void wake_system(struct camera_data *cam)
1819 {
1820 cpia2_do_command(cam, CPIA2_CMD_SET_WAKEUP, TRANSFER_WRITE, 0);
1821 }
1822
1823 /******************************************************************************
1824 *
1825 * set_lowlight_boost
1826 *
1827 * Valid for STV500 sensor only
1828 *****************************************************************************/
1829 static void set_lowlight_boost(struct camera_data *cam)
1830 {
1831 struct cpia2_command cmd;
1832
1833 if (cam->params.pnp_id.device_type != DEVICE_STV_672 ||
1834 cam->params.version.sensor_flags != CPIA2_VP_SENSOR_FLAGS_500)
1835 return;
1836
1837 cmd.direction = TRANSFER_WRITE;
1838 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
1839 cmd.reg_count = 3;
1840 cmd.start = CPIA2_VP_RAM_ADDR_H;
1841
1842 cmd.buffer.block_data[0] = 0; /* High byte of address to write to */
1843 cmd.buffer.block_data[1] = 0x59; /* Low byte of address to write to */
1844 cmd.buffer.block_data[2] = 0; /* High byte of data to write */
1845
1846 cpia2_send_command(cam, &cmd);
1847
1848 if (cam->params.vp_params.lowlight_boost) {
1849 cmd.buffer.block_data[0] = 0x02; /* Low byte data to write */
1850 } else {
1851 cmd.buffer.block_data[0] = 0x06;
1852 }
1853 cmd.start = CPIA2_VP_RAM_DATA;
1854 cmd.reg_count = 1;
1855 cpia2_send_command(cam, &cmd);
1856
1857 /* Rehash the VP4 values */
1858 cpia2_do_command(cam, CPIA2_CMD_REHASH_VP4, TRANSFER_WRITE, 1);
1859 }
1860
1861 /******************************************************************************
1862 *
1863 * cpia2_set_format
1864 *
1865 * Assumes that new size is already set in param struct.
1866 *****************************************************************************/
1867 void cpia2_set_format(struct camera_data *cam)
1868 {
1869 cam->flush = true;
1870
1871 cpia2_usb_stream_pause(cam);
1872
1873 /* reset camera to new size */
1874 cpia2_set_low_power(cam);
1875 cpia2_reset_camera(cam);
1876 cam->flush = false;
1877
1878 cpia2_dbg_dump_registers(cam);
1879
1880 cpia2_usb_stream_resume(cam);
1881 }
1882
1883 /******************************************************************************
1884 *
1885 * cpia2_dbg_dump_registers
1886 *
1887 *****************************************************************************/
1888 void cpia2_dbg_dump_registers(struct camera_data *cam)
1889 {
1890 #ifdef _CPIA2_DEBUG_
1891 struct cpia2_command cmd;
1892
1893 if (!(debugs_on & DEBUG_DUMP_REGS))
1894 return;
1895
1896 cmd.direction = TRANSFER_READ;
1897
1898 /* Start with bank 0 (SYSTEM) */
1899 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_SYSTEM;
1900 cmd.reg_count = 3;
1901 cmd.start = 0;
1902 cpia2_send_command(cam, &cmd);
1903 printk(KERN_DEBUG "System Device Hi = 0x%X\n",
1904 cmd.buffer.block_data[0]);
1905 printk(KERN_DEBUG "System Device Lo = 0x%X\n",
1906 cmd.buffer.block_data[1]);
1907 printk(KERN_DEBUG "System_system control = 0x%X\n",
1908 cmd.buffer.block_data[2]);
1909
1910 /* Bank 1 (VC) */
1911 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VC;
1912 cmd.reg_count = 4;
1913 cmd.start = 0x80;
1914 cpia2_send_command(cam, &cmd);
1915 printk(KERN_DEBUG "ASIC_ID = 0x%X\n",
1916 cmd.buffer.block_data[0]);
1917 printk(KERN_DEBUG "ASIC_REV = 0x%X\n",
1918 cmd.buffer.block_data[1]);
1919 printk(KERN_DEBUG "PW_CONTRL = 0x%X\n",
1920 cmd.buffer.block_data[2]);
1921 printk(KERN_DEBUG "WAKEUP = 0x%X\n",
1922 cmd.buffer.block_data[3]);
1923
1924 cmd.start = 0xA0; /* ST_CTRL */
1925 cmd.reg_count = 1;
1926 cpia2_send_command(cam, &cmd);
1927 printk(KERN_DEBUG "Stream ctrl = 0x%X\n",
1928 cmd.buffer.block_data[0]);
1929
1930 cmd.start = 0xA4; /* Stream status */
1931 cpia2_send_command(cam, &cmd);
1932 printk(KERN_DEBUG "Stream status = 0x%X\n",
1933 cmd.buffer.block_data[0]);
1934
1935 cmd.start = 0xA8; /* USB status */
1936 cmd.reg_count = 3;
1937 cpia2_send_command(cam, &cmd);
1938 printk(KERN_DEBUG "USB_CTRL = 0x%X\n",
1939 cmd.buffer.block_data[0]);
1940 printk(KERN_DEBUG "USB_STRM = 0x%X\n",
1941 cmd.buffer.block_data[1]);
1942 printk(KERN_DEBUG "USB_STATUS = 0x%X\n",
1943 cmd.buffer.block_data[2]);
1944
1945 cmd.start = 0xAF; /* USB settings */
1946 cmd.reg_count = 1;
1947 cpia2_send_command(cam, &cmd);
1948 printk(KERN_DEBUG "USB settings = 0x%X\n",
1949 cmd.buffer.block_data[0]);
1950
1951 cmd.start = 0xC0; /* VC stuff */
1952 cmd.reg_count = 26;
1953 cpia2_send_command(cam, &cmd);
1954 printk(KERN_DEBUG "VC Control = 0x%0X\n",
1955 cmd.buffer.block_data[0]);
1956 printk(KERN_DEBUG "VC Format = 0x%0X\n",
1957 cmd.buffer.block_data[3]);
1958 printk(KERN_DEBUG "VC Clocks = 0x%0X\n",
1959 cmd.buffer.block_data[4]);
1960 printk(KERN_DEBUG "VC IHSize = 0x%0X\n",
1961 cmd.buffer.block_data[5]);
1962 printk(KERN_DEBUG "VC Xlim Hi = 0x%0X\n",
1963 cmd.buffer.block_data[6]);
1964 printk(KERN_DEBUG "VC XLim Lo = 0x%0X\n",
1965 cmd.buffer.block_data[7]);
1966 printk(KERN_DEBUG "VC YLim Hi = 0x%0X\n",
1967 cmd.buffer.block_data[8]);
1968 printk(KERN_DEBUG "VC YLim Lo = 0x%0X\n",
1969 cmd.buffer.block_data[9]);
1970 printk(KERN_DEBUG "VC OHSize = 0x%0X\n",
1971 cmd.buffer.block_data[10]);
1972 printk(KERN_DEBUG "VC OVSize = 0x%0X\n",
1973 cmd.buffer.block_data[11]);
1974 printk(KERN_DEBUG "VC HCrop = 0x%0X\n",
1975 cmd.buffer.block_data[12]);
1976 printk(KERN_DEBUG "VC VCrop = 0x%0X\n",
1977 cmd.buffer.block_data[13]);
1978 printk(KERN_DEBUG "VC HPhase = 0x%0X\n",
1979 cmd.buffer.block_data[14]);
1980 printk(KERN_DEBUG "VC VPhase = 0x%0X\n",
1981 cmd.buffer.block_data[15]);
1982 printk(KERN_DEBUG "VC HIspan = 0x%0X\n",
1983 cmd.buffer.block_data[16]);
1984 printk(KERN_DEBUG "VC VIspan = 0x%0X\n",
1985 cmd.buffer.block_data[17]);
1986 printk(KERN_DEBUG "VC HiCrop = 0x%0X\n",
1987 cmd.buffer.block_data[18]);
1988 printk(KERN_DEBUG "VC ViCrop = 0x%0X\n",
1989 cmd.buffer.block_data[19]);
1990 printk(KERN_DEBUG "VC HiFract = 0x%0X\n",
1991 cmd.buffer.block_data[20]);
1992 printk(KERN_DEBUG "VC ViFract = 0x%0X\n",
1993 cmd.buffer.block_data[21]);
1994 printk(KERN_DEBUG "VC JPeg Opt = 0x%0X\n",
1995 cmd.buffer.block_data[22]);
1996 printk(KERN_DEBUG "VC Creep Per = 0x%0X\n",
1997 cmd.buffer.block_data[23]);
1998 printk(KERN_DEBUG "VC User Sq. = 0x%0X\n",
1999 cmd.buffer.block_data[24]);
2000 printk(KERN_DEBUG "VC Target KB = 0x%0X\n",
2001 cmd.buffer.block_data[25]);
2002
2003 /*** VP ***/
2004 cmd.req_mode = CAMERAACCESS_TYPE_BLOCK | CAMERAACCESS_VP;
2005 cmd.reg_count = 14;
2006 cmd.start = 0;
2007 cpia2_send_command(cam, &cmd);
2008
2009 printk(KERN_DEBUG "VP Dev Hi = 0x%0X\n",
2010 cmd.buffer.block_data[0]);
2011 printk(KERN_DEBUG "VP Dev Lo = 0x%0X\n",
2012 cmd.buffer.block_data[1]);
2013 printk(KERN_DEBUG "VP Sys State = 0x%0X\n",
2014 cmd.buffer.block_data[2]);
2015 printk(KERN_DEBUG "VP Sys Ctrl = 0x%0X\n",
2016 cmd.buffer.block_data[3]);
2017 printk(KERN_DEBUG "VP Sensor flg = 0x%0X\n",
2018 cmd.buffer.block_data[5]);
2019 printk(KERN_DEBUG "VP Sensor Rev = 0x%0X\n",
2020 cmd.buffer.block_data[6]);
2021 printk(KERN_DEBUG "VP Dev Config = 0x%0X\n",
2022 cmd.buffer.block_data[7]);
2023 printk(KERN_DEBUG "VP GPIO_DIR = 0x%0X\n",
2024 cmd.buffer.block_data[8]);
2025 printk(KERN_DEBUG "VP GPIO_DATA = 0x%0X\n",
2026 cmd.buffer.block_data[9]);
2027 printk(KERN_DEBUG "VP Ram ADDR H = 0x%0X\n",
2028 cmd.buffer.block_data[10]);
2029 printk(KERN_DEBUG "VP Ram ADDR L = 0x%0X\n",
2030 cmd.buffer.block_data[11]);
2031 printk(KERN_DEBUG "VP RAM Data = 0x%0X\n",
2032 cmd.buffer.block_data[12]);
2033 printk(KERN_DEBUG "Do Call = 0x%0X\n",
2034 cmd.buffer.block_data[13]);
2035
2036 if (cam->params.pnp_id.device_type == DEVICE_STV_672) {
2037 cmd.reg_count = 9;
2038 cmd.start = 0x0E;
2039 cpia2_send_command(cam, &cmd);
2040 printk(KERN_DEBUG "VP Clock Ctrl = 0x%0X\n",
2041 cmd.buffer.block_data[0]);
2042 printk(KERN_DEBUG "VP Patch Rev = 0x%0X\n",
2043 cmd.buffer.block_data[1]);
2044 printk(KERN_DEBUG "VP Vid Mode = 0x%0X\n",
2045 cmd.buffer.block_data[2]);
2046 printk(KERN_DEBUG "VP Framerate = 0x%0X\n",
2047 cmd.buffer.block_data[3]);
2048 printk(KERN_DEBUG "VP UserEffect = 0x%0X\n",
2049 cmd.buffer.block_data[4]);
2050 printk(KERN_DEBUG "VP White Bal = 0x%0X\n",
2051 cmd.buffer.block_data[5]);
2052 printk(KERN_DEBUG "VP WB thresh = 0x%0X\n",
2053 cmd.buffer.block_data[6]);
2054 printk(KERN_DEBUG "VP Exp Modes = 0x%0X\n",
2055 cmd.buffer.block_data[7]);
2056 printk(KERN_DEBUG "VP Exp Target = 0x%0X\n",
2057 cmd.buffer.block_data[8]);
2058
2059 cmd.reg_count = 1;
2060 cmd.start = 0x1B;
2061 cpia2_send_command(cam, &cmd);
2062 printk(KERN_DEBUG "VP FlickerMds = 0x%0X\n",
2063 cmd.buffer.block_data[0]);
2064 } else {
2065 cmd.reg_count = 8 ;
2066 cmd.start = 0x0E;
2067 cpia2_send_command(cam, &cmd);
2068 printk(KERN_DEBUG "VP Clock Ctrl = 0x%0X\n",
2069 cmd.buffer.block_data[0]);
2070 printk(KERN_DEBUG "VP Patch Rev = 0x%0X\n",
2071 cmd.buffer.block_data[1]);
2072 printk(KERN_DEBUG "VP Vid Mode = 0x%0X\n",
2073 cmd.buffer.block_data[5]);
2074 printk(KERN_DEBUG "VP Framerate = 0x%0X\n",
2075 cmd.buffer.block_data[6]);
2076 printk(KERN_DEBUG "VP UserEffect = 0x%0X\n",
2077 cmd.buffer.block_data[7]);
2078
2079 cmd.reg_count = 1;
2080 cmd.start = CPIA2_VP5_EXPOSURE_TARGET;
2081 cpia2_send_command(cam, &cmd);
2082 printk(KERN_DEBUG "VP5 Exp Target= 0x%0X\n",
2083 cmd.buffer.block_data[0]);
2084
2085 cmd.reg_count = 4;
2086 cmd.start = 0x3A;
2087 cpia2_send_command(cam, &cmd);
2088 printk(KERN_DEBUG "VP5 MY Black = 0x%0X\n",
2089 cmd.buffer.block_data[0]);
2090 printk(KERN_DEBUG "VP5 MCY Range = 0x%0X\n",
2091 cmd.buffer.block_data[1]);
2092 printk(KERN_DEBUG "VP5 MYCEILING = 0x%0X\n",
2093 cmd.buffer.block_data[2]);
2094 printk(KERN_DEBUG "VP5 MCUV Sat = 0x%0X\n",
2095 cmd.buffer.block_data[3]);
2096 }
2097 #endif
2098 }
2099
2100 /******************************************************************************
2101 *
2102 * reset_camera_struct
2103 *
2104 * Sets all values to the defaults
2105 *****************************************************************************/
2106 static void reset_camera_struct(struct camera_data *cam)
2107 {
2108 /***
2109 * The following parameter values are the defaults from the register map.
2110 ***/
2111 cam->params.vp_params.lowlight_boost = 0;
2112
2113 /* FlickerModes */
2114 cam->params.flicker_control.flicker_mode_req = NEVER_FLICKER;
2115
2116 /* jpeg params */
2117 cam->params.compression.jpeg_options = CPIA2_VC_VC_JPEG_OPT_DEFAULT;
2118 cam->params.compression.creep_period = 2;
2119 cam->params.compression.user_squeeze = 20;
2120 cam->params.compression.inhibit_htables = false;
2121
2122 /* gpio params */
2123 cam->params.vp_params.gpio_direction = 0; /* write, the default safe mode */
2124 cam->params.vp_params.gpio_data = 0;
2125
2126 /* Target kb params */
2127 cam->params.vc_params.quality = 100;
2128
2129 /***
2130 * Set Sensor FPS as fast as possible.
2131 ***/
2132 if(cam->params.pnp_id.device_type == DEVICE_STV_672) {
2133 if(cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500)
2134 cam->params.vp_params.frame_rate = CPIA2_VP_FRAMERATE_15;
2135 else
2136 cam->params.vp_params.frame_rate = CPIA2_VP_FRAMERATE_30;
2137 } else {
2138 cam->params.vp_params.frame_rate = CPIA2_VP_FRAMERATE_30;
2139 }
2140
2141 /***
2142 * Set default video mode as large as possible :
2143 * for vga sensor set to vga, for cif sensor set to CIF.
2144 ***/
2145 if (cam->params.version.sensor_flags == CPIA2_VP_SENSOR_FLAGS_500) {
2146 cam->sensor_type = CPIA2_SENSOR_500;
2147 cam->video_size = VIDEOSIZE_VGA;
2148 cam->params.roi.width = STV_IMAGE_VGA_COLS;
2149 cam->params.roi.height = STV_IMAGE_VGA_ROWS;
2150 } else {
2151 cam->sensor_type = CPIA2_SENSOR_410;
2152 cam->video_size = VIDEOSIZE_CIF;
2153 cam->params.roi.width = STV_IMAGE_CIF_COLS;
2154 cam->params.roi.height = STV_IMAGE_CIF_ROWS;
2155 }
2156
2157 cam->width = cam->params.roi.width;
2158 cam->height = cam->params.roi.height;
2159 }
2160
2161 /******************************************************************************
2162 *
2163 * cpia2_init_camera_struct
2164 *
2165 * Initializes camera struct, does not call reset to fill in defaults.
2166 *****************************************************************************/
2167 struct camera_data *cpia2_init_camera_struct(struct usb_interface *intf)
2168 {
2169 struct camera_data *cam;
2170
2171 cam = kzalloc(sizeof(*cam), GFP_KERNEL);
2172
2173 if (!cam) {
2174 ERR("couldn't kmalloc cpia2 struct\n");
2175 return NULL;
2176 }
2177
2178 cam->v4l2_dev.release = cpia2_camera_release;
2179 if (v4l2_device_register(&intf->dev, &cam->v4l2_dev) < 0) {
2180 v4l2_err(&cam->v4l2_dev, "couldn't register v4l2_device\n");
2181 kfree(cam);
2182 return NULL;
2183 }
2184
2185 mutex_init(&cam->v4l2_lock);
2186 init_waitqueue_head(&cam->wq_stream);
2187
2188 return cam;
2189 }
2190
2191 /******************************************************************************
2192 *
2193 * cpia2_init_camera
2194 *
2195 * Initializes camera.
2196 *****************************************************************************/
2197 int cpia2_init_camera(struct camera_data *cam)
2198 {
2199 DBG("Start\n");
2200
2201 cam->mmapped = false;
2202
2203 /* Get sensor and asic types before reset. */
2204 cpia2_set_high_power(cam);
2205 cpia2_get_version_info(cam);
2206 if (cam->params.version.asic_id != CPIA2_ASIC_672) {
2207 ERR("Device IO error (asicID has incorrect value of 0x%X\n",
2208 cam->params.version.asic_id);
2209 return -ENODEV;
2210 }
2211
2212 /* Set GPIO direction and data to a safe state. */
2213 cpia2_do_command(cam, CPIA2_CMD_SET_VC_MP_GPIO_DIRECTION,
2214 TRANSFER_WRITE, 0);
2215 cpia2_do_command(cam, CPIA2_CMD_SET_VC_MP_GPIO_DATA,
2216 TRANSFER_WRITE, 0);
2217
2218 /* resetting struct requires version info for sensor and asic types */
2219 reset_camera_struct(cam);
2220
2221 cpia2_set_low_power(cam);
2222
2223 DBG("End\n");
2224
2225 return 0;
2226 }
2227
2228 /******************************************************************************
2229 *
2230 * cpia2_allocate_buffers
2231 *
2232 *****************************************************************************/
2233 int cpia2_allocate_buffers(struct camera_data *cam)
2234 {
2235 int i;
2236
2237 if(!cam->buffers) {
2238 u32 size = cam->num_frames*sizeof(struct framebuf);
2239 cam->buffers = kmalloc(size, GFP_KERNEL);
2240 if(!cam->buffers) {
2241 ERR("couldn't kmalloc frame buffer structures\n");
2242 return -ENOMEM;
2243 }
2244 }
2245
2246 if(!cam->frame_buffer) {
2247 cam->frame_buffer = rvmalloc(cam->frame_size*cam->num_frames);
2248 if (!cam->frame_buffer) {
2249 ERR("couldn't vmalloc frame buffer data area\n");
2250 kfree(cam->buffers);
2251 cam->buffers = NULL;
2252 return -ENOMEM;
2253 }
2254 }
2255
2256 for(i=0; i<cam->num_frames-1; ++i) {
2257 cam->buffers[i].next = &cam->buffers[i+1];
2258 cam->buffers[i].data = cam->frame_buffer +i*cam->frame_size;
2259 cam->buffers[i].status = FRAME_EMPTY;
2260 cam->buffers[i].length = 0;
2261 cam->buffers[i].max_length = 0;
2262 cam->buffers[i].num = i;
2263 }
2264 cam->buffers[i].next = cam->buffers;
2265 cam->buffers[i].data = cam->frame_buffer +i*cam->frame_size;
2266 cam->buffers[i].status = FRAME_EMPTY;
2267 cam->buffers[i].length = 0;
2268 cam->buffers[i].max_length = 0;
2269 cam->buffers[i].num = i;
2270 cam->curbuff = cam->buffers;
2271 cam->workbuff = cam->curbuff->next;
2272 DBG("buffers=%p, curbuff=%p, workbuff=%p\n", cam->buffers, cam->curbuff,
2273 cam->workbuff);
2274 return 0;
2275 }
2276
2277 /******************************************************************************
2278 *
2279 * cpia2_free_buffers
2280 *
2281 *****************************************************************************/
2282 void cpia2_free_buffers(struct camera_data *cam)
2283 {
2284 if(cam->buffers) {
2285 kfree(cam->buffers);
2286 cam->buffers = NULL;
2287 }
2288 if(cam->frame_buffer) {
2289 rvfree(cam->frame_buffer, cam->frame_size*cam->num_frames);
2290 cam->frame_buffer = NULL;
2291 }
2292 }
2293
2294 /******************************************************************************
2295 *
2296 * cpia2_read
2297 *
2298 *****************************************************************************/
2299 long cpia2_read(struct camera_data *cam,
2300 char __user *buf, unsigned long count, int noblock)
2301 {
2302 struct framebuf *frame;
2303
2304 if (!count)
2305 return 0;
2306
2307 if (!buf) {
2308 ERR("%s: buffer NULL\n",__func__);
2309 return -EINVAL;
2310 }
2311
2312 if (!cam) {
2313 ERR("%s: Internal error, camera_data NULL!\n",__func__);
2314 return -EINVAL;
2315 }
2316
2317 if (!cam->streaming) {
2318 /* Start streaming */
2319 cpia2_usb_stream_start(cam,
2320 cam->params.camera_state.stream_mode);
2321 }
2322
2323 /* Copy cam->curbuff in case it changes while we're processing */
2324 frame = cam->curbuff;
2325 if (noblock && frame->status != FRAME_READY) {
2326 return -EAGAIN;
2327 }
2328
2329 if (frame->status != FRAME_READY) {
2330 mutex_unlock(&cam->v4l2_lock);
2331 wait_event_interruptible(cam->wq_stream,
2332 !video_is_registered(&cam->vdev) ||
2333 (frame = cam->curbuff)->status == FRAME_READY);
2334 mutex_lock(&cam->v4l2_lock);
2335 if (signal_pending(current))
2336 return -ERESTARTSYS;
2337 if (!video_is_registered(&cam->vdev))
2338 return 0;
2339 }
2340
2341 /* copy data to user space */
2342 if (frame->length > count)
2343 return -EFAULT;
2344 if (copy_to_user(buf, frame->data, frame->length))
2345 return -EFAULT;
2346
2347 count = frame->length;
2348
2349 frame->status = FRAME_EMPTY;
2350
2351 return count;
2352 }
2353
2354 /******************************************************************************
2355 *
2356 * cpia2_poll
2357 *
2358 *****************************************************************************/
2359 unsigned int cpia2_poll(struct camera_data *cam, struct file *filp,
2360 poll_table *wait)
2361 {
2362 unsigned int status = v4l2_ctrl_poll(filp, wait);
2363
2364 if ((poll_requested_events(wait) & (POLLIN | POLLRDNORM)) &&
2365 !cam->streaming) {
2366 /* Start streaming */
2367 cpia2_usb_stream_start(cam,
2368 cam->params.camera_state.stream_mode);
2369 }
2370
2371 poll_wait(filp, &cam->wq_stream, wait);
2372
2373 if (cam->curbuff->status == FRAME_READY)
2374 status |= POLLIN | POLLRDNORM;
2375
2376 return status;
2377 }
2378
2379 /******************************************************************************
2380 *
2381 * cpia2_remap_buffer
2382 *
2383 *****************************************************************************/
2384 int cpia2_remap_buffer(struct camera_data *cam, struct vm_area_struct *vma)
2385 {
2386 const char *adr = (const char *)vma->vm_start;
2387 unsigned long size = vma->vm_end-vma->vm_start;
2388 unsigned long start_offset = vma->vm_pgoff << PAGE_SHIFT;
2389 unsigned long start = (unsigned long) adr;
2390 unsigned long page, pos;
2391
2392 DBG("mmap offset:%ld size:%ld\n", start_offset, size);
2393
2394 if (!video_is_registered(&cam->vdev))
2395 return -ENODEV;
2396
2397 if (size > cam->frame_size*cam->num_frames ||
2398 (start_offset % cam->frame_size) != 0 ||
2399 (start_offset+size > cam->frame_size*cam->num_frames))
2400 return -EINVAL;
2401
2402 pos = ((unsigned long) (cam->frame_buffer)) + start_offset;
2403 while (size > 0) {
2404 page = kvirt_to_pa(pos);
2405 if (remap_pfn_range(vma, start, page >> PAGE_SHIFT, PAGE_SIZE, PAGE_SHARED))
2406 return -EAGAIN;
2407 start += PAGE_SIZE;
2408 pos += PAGE_SIZE;
2409 if (size > PAGE_SIZE)
2410 size -= PAGE_SIZE;
2411 else
2412 size = 0;
2413 }
2414
2415 cam->mmapped = true;
2416 return 0;
2417 }
CRIS linux kernel tree