Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * cpia CPiA driver | |
3 | * | |
4 | * Supports CPiA based Video Camera's. | |
5 | * | |
6 | * (C) Copyright 1999-2000 Peter Pregler | |
7 | * (C) Copyright 1999-2000 Scott J. Bertin | |
8 | * (C) Copyright 1999-2000 Johannes Erdfelt <johannes@erdfelt.com> | |
9 | * (C) Copyright 2000 STMicroelectronics | |
10 | * | |
11 | * This program is free software; you can redistribute it and/or modify | |
12 | * it under the terms of the GNU General Public License as published by | |
13 | * the Free Software Foundation; either version 2 of the License, or | |
14 | * (at your option) any later version. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, | |
17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | * GNU General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 | */ | |
25 | ||
26 | /* define _CPIA_DEBUG_ for verbose debug output (see cpia.h) */ | |
d56410e0 | 27 | /* #define _CPIA_DEBUG_ 1 */ |
1da177e4 | 28 | |
1da177e4 LT |
29 | |
30 | #include <linux/module.h> | |
1da177e4 LT |
31 | #include <linux/init.h> |
32 | #include <linux/fs.h> | |
33 | #include <linux/vmalloc.h> | |
34 | #include <linux/slab.h> | |
35 | #include <linux/proc_fs.h> | |
36 | #include <linux/ctype.h> | |
37 | #include <linux/pagemap.h> | |
38 | #include <linux/delay.h> | |
39 | #include <asm/io.h> | |
3593cab5 | 40 | #include <linux/mutex.h> |
1da177e4 LT |
41 | |
42 | #ifdef CONFIG_KMOD | |
43 | #include <linux/kmod.h> | |
44 | #endif | |
45 | ||
46 | #include "cpia.h" | |
47 | ||
1da177e4 LT |
48 | static int video_nr = -1; |
49 | ||
50 | #ifdef MODULE | |
51 | module_param(video_nr, int, 0); | |
2f8de1a1 | 52 | MODULE_AUTHOR("Scott J. Bertin <sbertin@securenym.net> & Peter Pregler <Peter_Pregler@email.com> & Johannes Erdfelt <johannes@erdfelt.com>"); |
1da177e4 LT |
53 | MODULE_DESCRIPTION("V4L-driver for Vision CPiA based cameras"); |
54 | MODULE_LICENSE("GPL"); | |
55 | MODULE_SUPPORTED_DEVICE("video"); | |
56 | #endif | |
57 | ||
9419045f | 58 | static unsigned short colorspace_conv; |
1da177e4 LT |
59 | module_param(colorspace_conv, ushort, 0444); |
60 | MODULE_PARM_DESC(colorspace_conv, | |
4286c6f6 MCC |
61 | " Colorspace conversion:" |
62 | "\n 0 = disable, 1 = enable" | |
63 | "\n Default value is 0" | |
64 | ); | |
1da177e4 LT |
65 | |
66 | #define ABOUT "V4L-Driver for Vision CPiA based cameras" | |
67 | ||
1da177e4 LT |
68 | #define CPIA_MODULE_CPIA (0<<5) |
69 | #define CPIA_MODULE_SYSTEM (1<<5) | |
70 | #define CPIA_MODULE_VP_CTRL (5<<5) | |
71 | #define CPIA_MODULE_CAPTURE (6<<5) | |
72 | #define CPIA_MODULE_DEBUG (7<<5) | |
73 | ||
74 | #define INPUT (DATA_IN << 8) | |
75 | #define OUTPUT (DATA_OUT << 8) | |
76 | ||
77 | #define CPIA_COMMAND_GetCPIAVersion (INPUT | CPIA_MODULE_CPIA | 1) | |
78 | #define CPIA_COMMAND_GetPnPID (INPUT | CPIA_MODULE_CPIA | 2) | |
79 | #define CPIA_COMMAND_GetCameraStatus (INPUT | CPIA_MODULE_CPIA | 3) | |
80 | #define CPIA_COMMAND_GotoHiPower (OUTPUT | CPIA_MODULE_CPIA | 4) | |
81 | #define CPIA_COMMAND_GotoLoPower (OUTPUT | CPIA_MODULE_CPIA | 5) | |
82 | #define CPIA_COMMAND_GotoSuspend (OUTPUT | CPIA_MODULE_CPIA | 7) | |
83 | #define CPIA_COMMAND_GotoPassThrough (OUTPUT | CPIA_MODULE_CPIA | 8) | |
84 | #define CPIA_COMMAND_ModifyCameraStatus (OUTPUT | CPIA_MODULE_CPIA | 10) | |
85 | ||
86 | #define CPIA_COMMAND_ReadVCRegs (INPUT | CPIA_MODULE_SYSTEM | 1) | |
87 | #define CPIA_COMMAND_WriteVCReg (OUTPUT | CPIA_MODULE_SYSTEM | 2) | |
88 | #define CPIA_COMMAND_ReadMCPorts (INPUT | CPIA_MODULE_SYSTEM | 3) | |
89 | #define CPIA_COMMAND_WriteMCPort (OUTPUT | CPIA_MODULE_SYSTEM | 4) | |
90 | #define CPIA_COMMAND_SetBaudRate (OUTPUT | CPIA_MODULE_SYSTEM | 5) | |
91 | #define CPIA_COMMAND_SetECPTiming (OUTPUT | CPIA_MODULE_SYSTEM | 6) | |
92 | #define CPIA_COMMAND_ReadIDATA (INPUT | CPIA_MODULE_SYSTEM | 7) | |
93 | #define CPIA_COMMAND_WriteIDATA (OUTPUT | CPIA_MODULE_SYSTEM | 8) | |
94 | #define CPIA_COMMAND_GenericCall (OUTPUT | CPIA_MODULE_SYSTEM | 9) | |
95 | #define CPIA_COMMAND_I2CStart (OUTPUT | CPIA_MODULE_SYSTEM | 10) | |
96 | #define CPIA_COMMAND_I2CStop (OUTPUT | CPIA_MODULE_SYSTEM | 11) | |
97 | #define CPIA_COMMAND_I2CWrite (OUTPUT | CPIA_MODULE_SYSTEM | 12) | |
98 | #define CPIA_COMMAND_I2CRead (INPUT | CPIA_MODULE_SYSTEM | 13) | |
99 | ||
100 | #define CPIA_COMMAND_GetVPVersion (INPUT | CPIA_MODULE_VP_CTRL | 1) | |
101 | #define CPIA_COMMAND_ResetFrameCounter (INPUT | CPIA_MODULE_VP_CTRL | 2) | |
102 | #define CPIA_COMMAND_SetColourParams (OUTPUT | CPIA_MODULE_VP_CTRL | 3) | |
103 | #define CPIA_COMMAND_SetExposure (OUTPUT | CPIA_MODULE_VP_CTRL | 4) | |
104 | #define CPIA_COMMAND_SetColourBalance (OUTPUT | CPIA_MODULE_VP_CTRL | 6) | |
105 | #define CPIA_COMMAND_SetSensorFPS (OUTPUT | CPIA_MODULE_VP_CTRL | 7) | |
106 | #define CPIA_COMMAND_SetVPDefaults (OUTPUT | CPIA_MODULE_VP_CTRL | 8) | |
107 | #define CPIA_COMMAND_SetApcor (OUTPUT | CPIA_MODULE_VP_CTRL | 9) | |
108 | #define CPIA_COMMAND_SetFlickerCtrl (OUTPUT | CPIA_MODULE_VP_CTRL | 10) | |
109 | #define CPIA_COMMAND_SetVLOffset (OUTPUT | CPIA_MODULE_VP_CTRL | 11) | |
110 | #define CPIA_COMMAND_GetColourParams (INPUT | CPIA_MODULE_VP_CTRL | 16) | |
111 | #define CPIA_COMMAND_GetColourBalance (INPUT | CPIA_MODULE_VP_CTRL | 17) | |
112 | #define CPIA_COMMAND_GetExposure (INPUT | CPIA_MODULE_VP_CTRL | 18) | |
113 | #define CPIA_COMMAND_SetSensorMatrix (OUTPUT | CPIA_MODULE_VP_CTRL | 19) | |
114 | #define CPIA_COMMAND_ColourBars (OUTPUT | CPIA_MODULE_VP_CTRL | 25) | |
115 | #define CPIA_COMMAND_ReadVPRegs (INPUT | CPIA_MODULE_VP_CTRL | 30) | |
116 | #define CPIA_COMMAND_WriteVPReg (OUTPUT | CPIA_MODULE_VP_CTRL | 31) | |
117 | ||
118 | #define CPIA_COMMAND_GrabFrame (OUTPUT | CPIA_MODULE_CAPTURE | 1) | |
119 | #define CPIA_COMMAND_UploadFrame (OUTPUT | CPIA_MODULE_CAPTURE | 2) | |
120 | #define CPIA_COMMAND_SetGrabMode (OUTPUT | CPIA_MODULE_CAPTURE | 3) | |
121 | #define CPIA_COMMAND_InitStreamCap (OUTPUT | CPIA_MODULE_CAPTURE | 4) | |
122 | #define CPIA_COMMAND_FiniStreamCap (OUTPUT | CPIA_MODULE_CAPTURE | 5) | |
123 | #define CPIA_COMMAND_StartStreamCap (OUTPUT | CPIA_MODULE_CAPTURE | 6) | |
124 | #define CPIA_COMMAND_EndStreamCap (OUTPUT | CPIA_MODULE_CAPTURE | 7) | |
125 | #define CPIA_COMMAND_SetFormat (OUTPUT | CPIA_MODULE_CAPTURE | 8) | |
126 | #define CPIA_COMMAND_SetROI (OUTPUT | CPIA_MODULE_CAPTURE | 9) | |
127 | #define CPIA_COMMAND_SetCompression (OUTPUT | CPIA_MODULE_CAPTURE | 10) | |
128 | #define CPIA_COMMAND_SetCompressionTarget (OUTPUT | CPIA_MODULE_CAPTURE | 11) | |
129 | #define CPIA_COMMAND_SetYUVThresh (OUTPUT | CPIA_MODULE_CAPTURE | 12) | |
130 | #define CPIA_COMMAND_SetCompressionParams (OUTPUT | CPIA_MODULE_CAPTURE | 13) | |
131 | #define CPIA_COMMAND_DiscardFrame (OUTPUT | CPIA_MODULE_CAPTURE | 14) | |
132 | #define CPIA_COMMAND_GrabReset (OUTPUT | CPIA_MODULE_CAPTURE | 15) | |
133 | ||
134 | #define CPIA_COMMAND_OutputRS232 (OUTPUT | CPIA_MODULE_DEBUG | 1) | |
135 | #define CPIA_COMMAND_AbortProcess (OUTPUT | CPIA_MODULE_DEBUG | 4) | |
136 | #define CPIA_COMMAND_SetDramPage (OUTPUT | CPIA_MODULE_DEBUG | 5) | |
137 | #define CPIA_COMMAND_StartDramUpload (OUTPUT | CPIA_MODULE_DEBUG | 6) | |
138 | #define CPIA_COMMAND_StartDummyDtream (OUTPUT | CPIA_MODULE_DEBUG | 8) | |
139 | #define CPIA_COMMAND_AbortStream (OUTPUT | CPIA_MODULE_DEBUG | 9) | |
140 | #define CPIA_COMMAND_DownloadDRAM (OUTPUT | CPIA_MODULE_DEBUG | 10) | |
141 | #define CPIA_COMMAND_Null (OUTPUT | CPIA_MODULE_DEBUG | 11) | |
142 | ||
143 | enum { | |
144 | FRAME_READY, /* Ready to grab into */ | |
145 | FRAME_GRABBING, /* In the process of being grabbed into */ | |
146 | FRAME_DONE, /* Finished grabbing, but not been synced yet */ | |
147 | FRAME_UNUSED, /* Unused (no MCAPTURE) */ | |
148 | }; | |
149 | ||
150 | #define COMMAND_NONE 0x0000 | |
151 | #define COMMAND_SETCOMPRESSION 0x0001 | |
152 | #define COMMAND_SETCOMPRESSIONTARGET 0x0002 | |
153 | #define COMMAND_SETCOLOURPARAMS 0x0004 | |
154 | #define COMMAND_SETFORMAT 0x0008 | |
155 | #define COMMAND_PAUSE 0x0010 | |
156 | #define COMMAND_RESUME 0x0020 | |
157 | #define COMMAND_SETYUVTHRESH 0x0040 | |
158 | #define COMMAND_SETECPTIMING 0x0080 | |
159 | #define COMMAND_SETCOMPRESSIONPARAMS 0x0100 | |
160 | #define COMMAND_SETEXPOSURE 0x0200 | |
161 | #define COMMAND_SETCOLOURBALANCE 0x0400 | |
162 | #define COMMAND_SETSENSORFPS 0x0800 | |
163 | #define COMMAND_SETAPCOR 0x1000 | |
164 | #define COMMAND_SETFLICKERCTRL 0x2000 | |
165 | #define COMMAND_SETVLOFFSET 0x4000 | |
166 | #define COMMAND_SETLIGHTS 0x8000 | |
167 | ||
168 | #define ROUND_UP_EXP_FOR_FLICKER 15 | |
169 | ||
170 | /* Constants for automatic frame rate adjustment */ | |
171 | #define MAX_EXP 302 | |
172 | #define MAX_EXP_102 255 | |
173 | #define LOW_EXP 140 | |
174 | #define VERY_LOW_EXP 70 | |
175 | #define TC 94 | |
176 | #define EXP_ACC_DARK 50 | |
177 | #define EXP_ACC_LIGHT 90 | |
d56410e0 MCC |
178 | #define HIGH_COMP_102 160 |
179 | #define MAX_COMP 239 | |
1da177e4 LT |
180 | #define DARK_TIME 3 |
181 | #define LIGHT_TIME 3 | |
182 | ||
183 | /* Maximum number of 10ms loops to wait for the stream to become ready */ | |
184 | #define READY_TIMEOUT 100 | |
185 | ||
186 | /* Developer's Guide Table 5 p 3-34 | |
187 | * indexed by [mains][sensorFps.baserate][sensorFps.divisor]*/ | |
188 | static u8 flicker_jumps[2][2][4] = | |
189 | { { { 76, 38, 19, 9 }, { 92, 46, 23, 11 } }, | |
190 | { { 64, 32, 16, 8 }, { 76, 38, 19, 9} } | |
191 | }; | |
192 | ||
193 | /* forward declaration of local function */ | |
194 | static void reset_camera_struct(struct cam_data *cam); | |
195 | static int find_over_exposure(int brightness); | |
196 | static void set_flicker(struct cam_params *params, volatile u32 *command_flags, | |
d56410e0 | 197 | int on); |
1da177e4 LT |
198 | |
199 | ||
200 | /********************************************************************** | |
201 | * | |
202 | * Memory management | |
203 | * | |
204 | **********************************************************************/ | |
205 | static void *rvmalloc(unsigned long size) | |
206 | { | |
207 | void *mem; | |
208 | unsigned long adr; | |
209 | ||
210 | size = PAGE_ALIGN(size); | |
211 | mem = vmalloc_32(size); | |
212 | if (!mem) | |
213 | return NULL; | |
214 | ||
215 | memset(mem, 0, size); /* Clear the ram out, no junk to the user */ | |
216 | adr = (unsigned long) mem; | |
217 | while (size > 0) { | |
218 | SetPageReserved(vmalloc_to_page((void *)adr)); | |
219 | adr += PAGE_SIZE; | |
220 | size -= PAGE_SIZE; | |
221 | } | |
222 | ||
223 | return mem; | |
224 | } | |
225 | ||
226 | static void rvfree(void *mem, unsigned long size) | |
227 | { | |
228 | unsigned long adr; | |
229 | ||
230 | if (!mem) | |
231 | return; | |
232 | ||
233 | adr = (unsigned long) mem; | |
234 | while ((long) size > 0) { | |
235 | ClearPageReserved(vmalloc_to_page((void *)adr)); | |
236 | adr += PAGE_SIZE; | |
237 | size -= PAGE_SIZE; | |
238 | } | |
239 | vfree(mem); | |
240 | } | |
241 | ||
242 | /********************************************************************** | |
243 | * | |
244 | * /proc interface | |
245 | * | |
246 | **********************************************************************/ | |
247 | #ifdef CONFIG_PROC_FS | |
248 | static struct proc_dir_entry *cpia_proc_root=NULL; | |
249 | ||
250 | static int cpia_read_proc(char *page, char **start, off_t off, | |
d56410e0 | 251 | int count, int *eof, void *data) |
1da177e4 LT |
252 | { |
253 | char *out = page; | |
254 | int len, tmp; | |
255 | struct cam_data *cam = data; | |
256 | char tmpstr[29]; | |
257 | ||
258 | /* IMPORTANT: This output MUST be kept under PAGE_SIZE | |
259 | * or we need to get more sophisticated. */ | |
260 | ||
261 | out += sprintf(out, "read-only\n-----------------------\n"); | |
262 | out += sprintf(out, "V4L Driver version: %d.%d.%d\n", | |
263 | CPIA_MAJ_VER, CPIA_MIN_VER, CPIA_PATCH_VER); | |
264 | out += sprintf(out, "CPIA Version: %d.%02d (%d.%d)\n", | |
d56410e0 MCC |
265 | cam->params.version.firmwareVersion, |
266 | cam->params.version.firmwareRevision, | |
267 | cam->params.version.vcVersion, | |
268 | cam->params.version.vcRevision); | |
1da177e4 | 269 | out += sprintf(out, "CPIA PnP-ID: %04x:%04x:%04x\n", |
d56410e0 MCC |
270 | cam->params.pnpID.vendor, cam->params.pnpID.product, |
271 | cam->params.pnpID.deviceRevision); | |
1da177e4 | 272 | out += sprintf(out, "VP-Version: %d.%d %04x\n", |
d56410e0 MCC |
273 | cam->params.vpVersion.vpVersion, |
274 | cam->params.vpVersion.vpRevision, | |
275 | cam->params.vpVersion.cameraHeadID); | |
276 | ||
1da177e4 | 277 | out += sprintf(out, "system_state: %#04x\n", |
d56410e0 | 278 | cam->params.status.systemState); |
1da177e4 | 279 | out += sprintf(out, "grab_state: %#04x\n", |
d56410e0 | 280 | cam->params.status.grabState); |
1da177e4 | 281 | out += sprintf(out, "stream_state: %#04x\n", |
d56410e0 | 282 | cam->params.status.streamState); |
1da177e4 | 283 | out += sprintf(out, "fatal_error: %#04x\n", |
d56410e0 | 284 | cam->params.status.fatalError); |
1da177e4 | 285 | out += sprintf(out, "cmd_error: %#04x\n", |
d56410e0 | 286 | cam->params.status.cmdError); |
1da177e4 | 287 | out += sprintf(out, "debug_flags: %#04x\n", |
d56410e0 | 288 | cam->params.status.debugFlags); |
1da177e4 | 289 | out += sprintf(out, "vp_status: %#04x\n", |
d56410e0 | 290 | cam->params.status.vpStatus); |
1da177e4 | 291 | out += sprintf(out, "error_code: %#04x\n", |
d56410e0 | 292 | cam->params.status.errorCode); |
1da177e4 LT |
293 | /* QX3 specific entries */ |
294 | if (cam->params.qx3.qx3_detected) { | |
295 | out += sprintf(out, "button: %4d\n", | |
d56410e0 | 296 | cam->params.qx3.button); |
1da177e4 | 297 | out += sprintf(out, "cradled: %4d\n", |
d56410e0 | 298 | cam->params.qx3.cradled); |
1da177e4 LT |
299 | } |
300 | out += sprintf(out, "video_size: %s\n", | |
d56410e0 | 301 | cam->params.format.videoSize == VIDEOSIZE_CIF ? |
1da177e4 LT |
302 | "CIF " : "QCIF"); |
303 | out += sprintf(out, "roi: (%3d, %3d) to (%3d, %3d)\n", | |
d56410e0 MCC |
304 | cam->params.roi.colStart*8, |
305 | cam->params.roi.rowStart*4, | |
306 | cam->params.roi.colEnd*8, | |
307 | cam->params.roi.rowEnd*4); | |
1da177e4 LT |
308 | out += sprintf(out, "actual_fps: %3d\n", cam->fps); |
309 | out += sprintf(out, "transfer_rate: %4dkB/s\n", | |
d56410e0 MCC |
310 | cam->transfer_rate); |
311 | ||
1da177e4 LT |
312 | out += sprintf(out, "\nread-write\n"); |
313 | out += sprintf(out, "----------------------- current min" | |
d56410e0 | 314 | " max default comment\n"); |
1da177e4 | 315 | out += sprintf(out, "brightness: %8d %8d %8d %8d\n", |
d56410e0 | 316 | cam->params.colourParams.brightness, 0, 100, 50); |
1da177e4 LT |
317 | if (cam->params.version.firmwareVersion == 1 && |
318 | cam->params.version.firmwareRevision == 2) | |
319 | /* 1-02 firmware limits contrast to 80 */ | |
320 | tmp = 80; | |
321 | else | |
322 | tmp = 96; | |
323 | ||
324 | out += sprintf(out, "contrast: %8d %8d %8d %8d" | |
d56410e0 MCC |
325 | " steps of 8\n", |
326 | cam->params.colourParams.contrast, 0, tmp, 48); | |
1da177e4 | 327 | out += sprintf(out, "saturation: %8d %8d %8d %8d\n", |
d56410e0 | 328 | cam->params.colourParams.saturation, 0, 100, 50); |
1da177e4 LT |
329 | tmp = (25000+5000*cam->params.sensorFps.baserate)/ |
330 | (1<<cam->params.sensorFps.divisor); | |
331 | out += sprintf(out, "sensor_fps: %4d.%03d %8d %8d %8d\n", | |
d56410e0 | 332 | tmp/1000, tmp%1000, 3, 30, 15); |
1da177e4 | 333 | out += sprintf(out, "stream_start_line: %8d %8d %8d %8d\n", |
d56410e0 | 334 | 2*cam->params.streamStartLine, 0, |
1da177e4 LT |
335 | cam->params.format.videoSize == VIDEOSIZE_CIF ? 288:144, |
336 | cam->params.format.videoSize == VIDEOSIZE_CIF ? 240:120); | |
337 | out += sprintf(out, "sub_sample: %8s %8s %8s %8s\n", | |
d56410e0 | 338 | cam->params.format.subSample == SUBSAMPLE_420 ? |
1da177e4 LT |
339 | "420" : "422", "420", "422", "422"); |
340 | out += sprintf(out, "yuv_order: %8s %8s %8s %8s\n", | |
d56410e0 | 341 | cam->params.format.yuvOrder == YUVORDER_YUYV ? |
1da177e4 LT |
342 | "YUYV" : "UYVY", "YUYV" , "UYVY", "YUYV"); |
343 | out += sprintf(out, "ecp_timing: %8s %8s %8s %8s\n", | |
d56410e0 | 344 | cam->params.ecpTiming ? "slow" : "normal", "slow", |
1da177e4 LT |
345 | "normal", "normal"); |
346 | ||
347 | if (cam->params.colourBalance.balanceMode == 2) { | |
348 | sprintf(tmpstr, "auto"); | |
349 | } else { | |
350 | sprintf(tmpstr, "manual"); | |
351 | } | |
352 | out += sprintf(out, "color_balance_mode: %8s %8s %8s" | |
353 | " %8s\n", tmpstr, "manual", "auto", "auto"); | |
354 | out += sprintf(out, "red_gain: %8d %8d %8d %8d\n", | |
d56410e0 | 355 | cam->params.colourBalance.redGain, 0, 212, 32); |
1da177e4 | 356 | out += sprintf(out, "green_gain: %8d %8d %8d %8d\n", |
d56410e0 | 357 | cam->params.colourBalance.greenGain, 0, 212, 6); |
1da177e4 | 358 | out += sprintf(out, "blue_gain: %8d %8d %8d %8d\n", |
d56410e0 | 359 | cam->params.colourBalance.blueGain, 0, 212, 92); |
1da177e4 LT |
360 | |
361 | if (cam->params.version.firmwareVersion == 1 && | |
362 | cam->params.version.firmwareRevision == 2) | |
363 | /* 1-02 firmware limits gain to 2 */ | |
364 | sprintf(tmpstr, "%8d %8d %8d", 1, 2, 2); | |
365 | else | |
366 | sprintf(tmpstr, "%8d %8d %8d", 1, 8, 2); | |
367 | ||
368 | if (cam->params.exposure.gainMode == 0) | |
369 | out += sprintf(out, "max_gain: unknown %28s" | |
d56410e0 | 370 | " powers of 2\n", tmpstr); |
1da177e4 LT |
371 | else |
372 | out += sprintf(out, "max_gain: %8d %28s" | |
373 | " 1,2,4 or 8 \n", | |
d56410e0 | 374 | 1<<(cam->params.exposure.gainMode-1), tmpstr); |
1da177e4 LT |
375 | |
376 | switch(cam->params.exposure.expMode) { | |
377 | case 1: | |
378 | case 3: | |
379 | sprintf(tmpstr, "manual"); | |
380 | break; | |
381 | case 2: | |
382 | sprintf(tmpstr, "auto"); | |
383 | break; | |
384 | default: | |
385 | sprintf(tmpstr, "unknown"); | |
386 | break; | |
387 | } | |
388 | out += sprintf(out, "exposure_mode: %8s %8s %8s" | |
389 | " %8s\n", tmpstr, "manual", "auto", "auto"); | |
390 | out += sprintf(out, "centre_weight: %8s %8s %8s %8s\n", | |
d56410e0 MCC |
391 | (2-cam->params.exposure.centreWeight) ? "on" : "off", |
392 | "off", "on", "on"); | |
1da177e4 | 393 | out += sprintf(out, "gain: %8d %8d max_gain %8d 1,2,4,8 possible\n", |
d56410e0 | 394 | 1<<cam->params.exposure.gain, 1, 1); |
1da177e4 LT |
395 | if (cam->params.version.firmwareVersion == 1 && |
396 | cam->params.version.firmwareRevision == 2) | |
397 | /* 1-02 firmware limits fineExp/2 to 127 */ | |
398 | tmp = 254; | |
399 | else | |
400 | tmp = 510; | |
401 | ||
402 | out += sprintf(out, "fine_exp: %8d %8d %8d %8d\n", | |
d56410e0 | 403 | cam->params.exposure.fineExp*2, 0, tmp, 0); |
1da177e4 LT |
404 | if (cam->params.version.firmwareVersion == 1 && |
405 | cam->params.version.firmwareRevision == 2) | |
406 | /* 1-02 firmware limits coarseExpHi to 0 */ | |
407 | tmp = MAX_EXP_102; | |
408 | else | |
409 | tmp = MAX_EXP; | |
410 | ||
411 | out += sprintf(out, "coarse_exp: %8d %8d %8d" | |
412 | " %8d\n", cam->params.exposure.coarseExpLo+ | |
413 | 256*cam->params.exposure.coarseExpHi, 0, tmp, 185); | |
414 | out += sprintf(out, "red_comp: %8d %8d %8d %8d\n", | |
d56410e0 | 415 | cam->params.exposure.redComp, COMP_RED, 255, COMP_RED); |
1da177e4 | 416 | out += sprintf(out, "green1_comp: %8d %8d %8d %8d\n", |
d56410e0 | 417 | cam->params.exposure.green1Comp, COMP_GREEN1, 255, |
1da177e4 LT |
418 | COMP_GREEN1); |
419 | out += sprintf(out, "green2_comp: %8d %8d %8d %8d\n", | |
d56410e0 | 420 | cam->params.exposure.green2Comp, COMP_GREEN2, 255, |
1da177e4 LT |
421 | COMP_GREEN2); |
422 | out += sprintf(out, "blue_comp: %8d %8d %8d %8d\n", | |
d56410e0 MCC |
423 | cam->params.exposure.blueComp, COMP_BLUE, 255, COMP_BLUE); |
424 | ||
1da177e4 | 425 | out += sprintf(out, "apcor_gain1: %#8x %#8x %#8x %#8x\n", |
d56410e0 | 426 | cam->params.apcor.gain1, 0, 0xff, 0x1c); |
1da177e4 | 427 | out += sprintf(out, "apcor_gain2: %#8x %#8x %#8x %#8x\n", |
d56410e0 | 428 | cam->params.apcor.gain2, 0, 0xff, 0x1a); |
1da177e4 | 429 | out += sprintf(out, "apcor_gain4: %#8x %#8x %#8x %#8x\n", |
d56410e0 | 430 | cam->params.apcor.gain4, 0, 0xff, 0x2d); |
1da177e4 | 431 | out += sprintf(out, "apcor_gain8: %#8x %#8x %#8x %#8x\n", |
d56410e0 | 432 | cam->params.apcor.gain8, 0, 0xff, 0x2a); |
1da177e4 | 433 | out += sprintf(out, "vl_offset_gain1: %8d %8d %8d %8d\n", |
d56410e0 | 434 | cam->params.vlOffset.gain1, 0, 255, 24); |
1da177e4 | 435 | out += sprintf(out, "vl_offset_gain2: %8d %8d %8d %8d\n", |
d56410e0 | 436 | cam->params.vlOffset.gain2, 0, 255, 28); |
1da177e4 | 437 | out += sprintf(out, "vl_offset_gain4: %8d %8d %8d %8d\n", |
d56410e0 | 438 | cam->params.vlOffset.gain4, 0, 255, 30); |
1da177e4 | 439 | out += sprintf(out, "vl_offset_gain8: %8d %8d %8d %8d\n", |
d56410e0 | 440 | cam->params.vlOffset.gain8, 0, 255, 30); |
1da177e4 | 441 | out += sprintf(out, "flicker_control: %8s %8s %8s %8s\n", |
d56410e0 | 442 | cam->params.flickerControl.flickerMode ? "on" : "off", |
1da177e4 LT |
443 | "off", "on", "off"); |
444 | out += sprintf(out, "mains_frequency: %8d %8d %8d %8d" | |
d56410e0 MCC |
445 | " only 50/60\n", |
446 | cam->mainsFreq ? 60 : 50, 50, 60, 50); | |
1da177e4 LT |
447 | if(cam->params.flickerControl.allowableOverExposure < 0) |
448 | out += sprintf(out, "allowable_overexposure: %4dauto auto %8d auto\n", | |
d56410e0 MCC |
449 | -cam->params.flickerControl.allowableOverExposure, |
450 | 255); | |
1da177e4 LT |
451 | else |
452 | out += sprintf(out, "allowable_overexposure: %8d auto %8d auto\n", | |
d56410e0 MCC |
453 | cam->params.flickerControl.allowableOverExposure, |
454 | 255); | |
1da177e4 LT |
455 | out += sprintf(out, "compression_mode: "); |
456 | switch(cam->params.compression.mode) { | |
457 | case CPIA_COMPRESSION_NONE: | |
458 | out += sprintf(out, "%8s", "none"); | |
459 | break; | |
460 | case CPIA_COMPRESSION_AUTO: | |
461 | out += sprintf(out, "%8s", "auto"); | |
462 | break; | |
463 | case CPIA_COMPRESSION_MANUAL: | |
464 | out += sprintf(out, "%8s", "manual"); | |
465 | break; | |
466 | default: | |
467 | out += sprintf(out, "%8s", "unknown"); | |
468 | break; | |
469 | } | |
470 | out += sprintf(out, " none,auto,manual auto\n"); | |
471 | out += sprintf(out, "decimation_enable: %8s %8s %8s %8s\n", | |
d56410e0 MCC |
472 | cam->params.compression.decimation == |
473 | DECIMATION_ENAB ? "on":"off", "off", "on", | |
1da177e4 LT |
474 | "off"); |
475 | out += sprintf(out, "compression_target: %9s %9s %9s %9s\n", | |
d56410e0 | 476 | cam->params.compressionTarget.frTargeting == |
1da177e4 LT |
477 | CPIA_COMPRESSION_TARGET_FRAMERATE ? |
478 | "framerate":"quality", | |
479 | "framerate", "quality", "quality"); | |
480 | out += sprintf(out, "target_framerate: %8d %8d %8d %8d\n", | |
d56410e0 | 481 | cam->params.compressionTarget.targetFR, 1, 30, 15); |
1da177e4 | 482 | out += sprintf(out, "target_quality: %8d %8d %8d %8d\n", |
d56410e0 | 483 | cam->params.compressionTarget.targetQ, 1, 64, 5); |
1da177e4 | 484 | out += sprintf(out, "y_threshold: %8d %8d %8d %8d\n", |
d56410e0 | 485 | cam->params.yuvThreshold.yThreshold, 0, 31, 6); |
1da177e4 | 486 | out += sprintf(out, "uv_threshold: %8d %8d %8d %8d\n", |
d56410e0 | 487 | cam->params.yuvThreshold.uvThreshold, 0, 31, 6); |
1da177e4 | 488 | out += sprintf(out, "hysteresis: %8d %8d %8d %8d\n", |
d56410e0 | 489 | cam->params.compressionParams.hysteresis, 0, 255, 3); |
1da177e4 | 490 | out += sprintf(out, "threshold_max: %8d %8d %8d %8d\n", |
d56410e0 | 491 | cam->params.compressionParams.threshMax, 0, 255, 11); |
1da177e4 | 492 | out += sprintf(out, "small_step: %8d %8d %8d %8d\n", |
d56410e0 | 493 | cam->params.compressionParams.smallStep, 0, 255, 1); |
1da177e4 | 494 | out += sprintf(out, "large_step: %8d %8d %8d %8d\n", |
d56410e0 | 495 | cam->params.compressionParams.largeStep, 0, 255, 3); |
1da177e4 | 496 | out += sprintf(out, "decimation_hysteresis: %8d %8d %8d %8d\n", |
d56410e0 | 497 | cam->params.compressionParams.decimationHysteresis, |
1da177e4 LT |
498 | 0, 255, 2); |
499 | out += sprintf(out, "fr_diff_step_thresh: %8d %8d %8d %8d\n", | |
d56410e0 | 500 | cam->params.compressionParams.frDiffStepThresh, |
1da177e4 LT |
501 | 0, 255, 5); |
502 | out += sprintf(out, "q_diff_step_thresh: %8d %8d %8d %8d\n", | |
d56410e0 | 503 | cam->params.compressionParams.qDiffStepThresh, |
1da177e4 LT |
504 | 0, 255, 3); |
505 | out += sprintf(out, "decimation_thresh_mod: %8d %8d %8d %8d\n", | |
d56410e0 | 506 | cam->params.compressionParams.decimationThreshMod, |
1da177e4 LT |
507 | 0, 255, 2); |
508 | /* QX3 specific entries */ | |
509 | if (cam->params.qx3.qx3_detected) { | |
d56410e0 MCC |
510 | out += sprintf(out, "toplight: %8s %8s %8s %8s\n", |
511 | cam->params.qx3.toplight ? "on" : "off", | |
1da177e4 | 512 | "off", "on", "off"); |
d56410e0 MCC |
513 | out += sprintf(out, "bottomlight: %8s %8s %8s %8s\n", |
514 | cam->params.qx3.bottomlight ? "on" : "off", | |
1da177e4 LT |
515 | "off", "on", "off"); |
516 | } | |
d56410e0 | 517 | |
1da177e4 LT |
518 | len = out - page; |
519 | len -= off; | |
520 | if (len < count) { | |
521 | *eof = 1; | |
522 | if (len <= 0) return 0; | |
523 | } else | |
524 | len = count; | |
525 | ||
526 | *start = page + off; | |
527 | return len; | |
528 | } | |
529 | ||
530 | ||
531 | static int match(char *checkstr, char **buffer, unsigned long *count, | |
d56410e0 | 532 | int *find_colon, int *err) |
1da177e4 LT |
533 | { |
534 | int ret, colon_found = 1; | |
535 | int len = strlen(checkstr); | |
536 | ret = (len <= *count && strncmp(*buffer, checkstr, len) == 0); | |
537 | if (ret) { | |
538 | *buffer += len; | |
539 | *count -= len; | |
540 | if (*find_colon) { | |
541 | colon_found = 0; | |
542 | while (*count && (**buffer == ' ' || **buffer == '\t' || | |
543 | (!colon_found && **buffer == ':'))) { | |
544 | if (**buffer == ':') | |
545 | colon_found = 1; | |
546 | --*count; | |
547 | ++*buffer; | |
548 | } | |
549 | if (!*count || !colon_found) | |
550 | *err = -EINVAL; | |
551 | *find_colon = 0; | |
552 | } | |
553 | } | |
554 | return ret; | |
555 | } | |
556 | ||
557 | static unsigned long int value(char **buffer, unsigned long *count, int *err) | |
558 | { | |
559 | char *p; | |
560 | unsigned long int ret; | |
561 | ret = simple_strtoul(*buffer, &p, 0); | |
562 | if (p == *buffer) | |
563 | *err = -EINVAL; | |
564 | else { | |
565 | *count -= p - *buffer; | |
566 | *buffer = p; | |
567 | } | |
568 | return ret; | |
569 | } | |
570 | ||
571 | static int cpia_write_proc(struct file *file, const char __user *buf, | |
d56410e0 | 572 | unsigned long count, void *data) |
1da177e4 LT |
573 | { |
574 | struct cam_data *cam = data; | |
575 | struct cam_params new_params; | |
576 | char *page, *buffer; | |
577 | int retval, find_colon; | |
578 | int size = count; | |
579 | unsigned long val = 0; | |
580 | u32 command_flags = 0; | |
581 | u8 new_mains; | |
582 | ||
583 | /* | |
584 | * This code to copy from buf to page is shamelessly copied | |
585 | * from the comx driver | |
586 | */ | |
587 | if (count > PAGE_SIZE) { | |
588 | printk(KERN_ERR "count is %lu > %d!!!\n", count, (int)PAGE_SIZE); | |
589 | return -ENOSPC; | |
590 | } | |
591 | ||
592 | if (!(page = (char *)__get_free_page(GFP_KERNEL))) return -ENOMEM; | |
593 | ||
594 | if(copy_from_user(page, buf, count)) | |
595 | { | |
596 | retval = -EFAULT; | |
597 | goto out; | |
598 | } | |
599 | ||
600 | if (page[count-1] == '\n') | |
601 | page[count-1] = '\0'; | |
602 | else if (count < PAGE_SIZE) | |
603 | page[count] = '\0'; | |
604 | else if (page[count]) { | |
605 | retval = -EINVAL; | |
606 | goto out; | |
607 | } | |
d56410e0 | 608 | |
1da177e4 | 609 | buffer = page; |
d56410e0 | 610 | |
3593cab5 | 611 | if (mutex_lock_interruptible(&cam->param_lock)) |
1da177e4 | 612 | return -ERESTARTSYS; |
d56410e0 | 613 | |
1da177e4 LT |
614 | /* |
615 | * Skip over leading whitespace | |
616 | */ | |
617 | while (count && isspace(*buffer)) { | |
618 | --count; | |
619 | ++buffer; | |
620 | } | |
d56410e0 | 621 | |
1da177e4 LT |
622 | memcpy(&new_params, &cam->params, sizeof(struct cam_params)); |
623 | new_mains = cam->mainsFreq; | |
d56410e0 | 624 | |
1da177e4 LT |
625 | #define MATCH(x) (match(x, &buffer, &count, &find_colon, &retval)) |
626 | #define VALUE (value(&buffer,&count, &retval)) | |
627 | #define FIRMWARE_VERSION(x,y) (new_params.version.firmwareVersion == (x) && \ | |
d56410e0 MCC |
628 | new_params.version.firmwareRevision == (y)) |
629 | ||
1da177e4 LT |
630 | retval = 0; |
631 | while (count && !retval) { | |
632 | find_colon = 1; | |
633 | if (MATCH("brightness")) { | |
634 | if (!retval) | |
635 | val = VALUE; | |
636 | ||
637 | if (!retval) { | |
638 | if (val <= 100) | |
639 | new_params.colourParams.brightness = val; | |
640 | else | |
641 | retval = -EINVAL; | |
642 | } | |
643 | command_flags |= COMMAND_SETCOLOURPARAMS; | |
644 | if(new_params.flickerControl.allowableOverExposure < 0) | |
d56410e0 | 645 | new_params.flickerControl.allowableOverExposure = |
1da177e4 LT |
646 | -find_over_exposure(new_params.colourParams.brightness); |
647 | if(new_params.flickerControl.flickerMode != 0) | |
648 | command_flags |= COMMAND_SETFLICKERCTRL; | |
649 | ||
650 | } else if (MATCH("contrast")) { | |
651 | if (!retval) | |
652 | val = VALUE; | |
653 | ||
654 | if (!retval) { | |
655 | if (val <= 100) { | |
656 | /* contrast is in steps of 8, so round*/ | |
657 | val = ((val + 3) / 8) * 8; | |
658 | /* 1-02 firmware limits contrast to 80*/ | |
659 | if (FIRMWARE_VERSION(1,2) && val > 80) | |
660 | val = 80; | |
661 | ||
662 | new_params.colourParams.contrast = val; | |
663 | } else | |
664 | retval = -EINVAL; | |
665 | } | |
666 | command_flags |= COMMAND_SETCOLOURPARAMS; | |
667 | } else if (MATCH("saturation")) { | |
668 | if (!retval) | |
669 | val = VALUE; | |
670 | ||
671 | if (!retval) { | |
672 | if (val <= 100) | |
673 | new_params.colourParams.saturation = val; | |
674 | else | |
675 | retval = -EINVAL; | |
676 | } | |
677 | command_flags |= COMMAND_SETCOLOURPARAMS; | |
678 | } else if (MATCH("sensor_fps")) { | |
679 | if (!retval) | |
680 | val = VALUE; | |
681 | ||
682 | if (!retval) { | |
683 | /* find values so that sensorFPS is minimized, | |
684 | * but >= val */ | |
685 | if (val > 30) | |
686 | retval = -EINVAL; | |
687 | else if (val > 25) { | |
688 | new_params.sensorFps.divisor = 0; | |
689 | new_params.sensorFps.baserate = 1; | |
690 | } else if (val > 15) { | |
691 | new_params.sensorFps.divisor = 0; | |
692 | new_params.sensorFps.baserate = 0; | |
693 | } else if (val > 12) { | |
694 | new_params.sensorFps.divisor = 1; | |
695 | new_params.sensorFps.baserate = 1; | |
696 | } else if (val > 7) { | |
697 | new_params.sensorFps.divisor = 1; | |
698 | new_params.sensorFps.baserate = 0; | |
699 | } else if (val > 6) { | |
700 | new_params.sensorFps.divisor = 2; | |
701 | new_params.sensorFps.baserate = 1; | |
702 | } else if (val > 3) { | |
703 | new_params.sensorFps.divisor = 2; | |
704 | new_params.sensorFps.baserate = 0; | |
705 | } else { | |
706 | new_params.sensorFps.divisor = 3; | |
707 | /* Either base rate would work here */ | |
708 | new_params.sensorFps.baserate = 1; | |
709 | } | |
d56410e0 | 710 | new_params.flickerControl.coarseJump = |
1da177e4 LT |
711 | flicker_jumps[new_mains] |
712 | [new_params.sensorFps.baserate] | |
713 | [new_params.sensorFps.divisor]; | |
714 | if (new_params.flickerControl.flickerMode) | |
715 | command_flags |= COMMAND_SETFLICKERCTRL; | |
716 | } | |
717 | command_flags |= COMMAND_SETSENSORFPS; | |
718 | cam->exposure_status = EXPOSURE_NORMAL; | |
719 | } else if (MATCH("stream_start_line")) { | |
720 | if (!retval) | |
721 | val = VALUE; | |
722 | ||
723 | if (!retval) { | |
724 | int max_line = 288; | |
725 | ||
726 | if (new_params.format.videoSize == VIDEOSIZE_QCIF) | |
727 | max_line = 144; | |
728 | if (val <= max_line) | |
729 | new_params.streamStartLine = val/2; | |
730 | else | |
731 | retval = -EINVAL; | |
732 | } | |
733 | } else if (MATCH("sub_sample")) { | |
734 | if (!retval && MATCH("420")) | |
735 | new_params.format.subSample = SUBSAMPLE_420; | |
736 | else if (!retval && MATCH("422")) | |
737 | new_params.format.subSample = SUBSAMPLE_422; | |
738 | else | |
739 | retval = -EINVAL; | |
740 | ||
741 | command_flags |= COMMAND_SETFORMAT; | |
742 | } else if (MATCH("yuv_order")) { | |
743 | if (!retval && MATCH("YUYV")) | |
744 | new_params.format.yuvOrder = YUVORDER_YUYV; | |
745 | else if (!retval && MATCH("UYVY")) | |
746 | new_params.format.yuvOrder = YUVORDER_UYVY; | |
747 | else | |
748 | retval = -EINVAL; | |
749 | ||
750 | command_flags |= COMMAND_SETFORMAT; | |
751 | } else if (MATCH("ecp_timing")) { | |
752 | if (!retval && MATCH("normal")) | |
753 | new_params.ecpTiming = 0; | |
754 | else if (!retval && MATCH("slow")) | |
755 | new_params.ecpTiming = 1; | |
756 | else | |
757 | retval = -EINVAL; | |
758 | ||
759 | command_flags |= COMMAND_SETECPTIMING; | |
760 | } else if (MATCH("color_balance_mode")) { | |
761 | if (!retval && MATCH("manual")) | |
762 | new_params.colourBalance.balanceMode = 3; | |
763 | else if (!retval && MATCH("auto")) | |
764 | new_params.colourBalance.balanceMode = 2; | |
765 | else | |
766 | retval = -EINVAL; | |
767 | ||
768 | command_flags |= COMMAND_SETCOLOURBALANCE; | |
769 | } else if (MATCH("red_gain")) { | |
770 | if (!retval) | |
771 | val = VALUE; | |
772 | ||
773 | if (!retval) { | |
774 | if (val <= 212) { | |
775 | new_params.colourBalance.redGain = val; | |
776 | new_params.colourBalance.balanceMode = 1; | |
777 | } else | |
778 | retval = -EINVAL; | |
779 | } | |
780 | command_flags |= COMMAND_SETCOLOURBALANCE; | |
781 | } else if (MATCH("green_gain")) { | |
782 | if (!retval) | |
783 | val = VALUE; | |
784 | ||
785 | if (!retval) { | |
786 | if (val <= 212) { | |
787 | new_params.colourBalance.greenGain = val; | |
788 | new_params.colourBalance.balanceMode = 1; | |
789 | } else | |
790 | retval = -EINVAL; | |
791 | } | |
792 | command_flags |= COMMAND_SETCOLOURBALANCE; | |
793 | } else if (MATCH("blue_gain")) { | |
794 | if (!retval) | |
795 | val = VALUE; | |
796 | ||
797 | if (!retval) { | |
798 | if (val <= 212) { | |
799 | new_params.colourBalance.blueGain = val; | |
800 | new_params.colourBalance.balanceMode = 1; | |
801 | } else | |
802 | retval = -EINVAL; | |
803 | } | |
804 | command_flags |= COMMAND_SETCOLOURBALANCE; | |
805 | } else if (MATCH("max_gain")) { | |
806 | if (!retval) | |
807 | val = VALUE; | |
808 | ||
809 | if (!retval) { | |
810 | /* 1-02 firmware limits gain to 2 */ | |
811 | if (FIRMWARE_VERSION(1,2) && val > 2) | |
812 | val = 2; | |
813 | switch(val) { | |
814 | case 1: | |
815 | new_params.exposure.gainMode = 1; | |
816 | break; | |
817 | case 2: | |
818 | new_params.exposure.gainMode = 2; | |
819 | break; | |
820 | case 4: | |
821 | new_params.exposure.gainMode = 3; | |
822 | break; | |
823 | case 8: | |
824 | new_params.exposure.gainMode = 4; | |
825 | break; | |
826 | default: | |
827 | retval = -EINVAL; | |
828 | break; | |
829 | } | |
830 | } | |
831 | command_flags |= COMMAND_SETEXPOSURE; | |
832 | } else if (MATCH("exposure_mode")) { | |
833 | if (!retval && MATCH("auto")) | |
834 | new_params.exposure.expMode = 2; | |
835 | else if (!retval && MATCH("manual")) { | |
836 | if (new_params.exposure.expMode == 2) | |
837 | new_params.exposure.expMode = 3; | |
838 | if(new_params.flickerControl.flickerMode != 0) | |
839 | command_flags |= COMMAND_SETFLICKERCTRL; | |
840 | new_params.flickerControl.flickerMode = 0; | |
841 | } else | |
842 | retval = -EINVAL; | |
843 | ||
844 | command_flags |= COMMAND_SETEXPOSURE; | |
845 | } else if (MATCH("centre_weight")) { | |
846 | if (!retval && MATCH("on")) | |
847 | new_params.exposure.centreWeight = 1; | |
848 | else if (!retval && MATCH("off")) | |
849 | new_params.exposure.centreWeight = 2; | |
850 | else | |
851 | retval = -EINVAL; | |
852 | ||
853 | command_flags |= COMMAND_SETEXPOSURE; | |
854 | } else if (MATCH("gain")) { | |
855 | if (!retval) | |
856 | val = VALUE; | |
857 | ||
858 | if (!retval) { | |
859 | switch(val) { | |
860 | case 1: | |
861 | new_params.exposure.gain = 0; | |
862 | break; | |
863 | case 2: | |
864 | new_params.exposure.gain = 1; | |
865 | break; | |
866 | case 4: | |
867 | new_params.exposure.gain = 2; | |
868 | break; | |
869 | case 8: | |
870 | new_params.exposure.gain = 3; | |
871 | break; | |
872 | default: | |
873 | retval = -EINVAL; | |
874 | break; | |
875 | } | |
876 | new_params.exposure.expMode = 1; | |
877 | if(new_params.flickerControl.flickerMode != 0) | |
878 | command_flags |= COMMAND_SETFLICKERCTRL; | |
879 | new_params.flickerControl.flickerMode = 0; | |
880 | command_flags |= COMMAND_SETEXPOSURE; | |
881 | if (new_params.exposure.gain > | |
882 | new_params.exposure.gainMode-1) | |
883 | retval = -EINVAL; | |
884 | } | |
885 | } else if (MATCH("fine_exp")) { | |
886 | if (!retval) | |
887 | val = VALUE/2; | |
888 | ||
889 | if (!retval) { | |
890 | if (val < 256) { | |
891 | /* 1-02 firmware limits fineExp/2 to 127*/ | |
892 | if (FIRMWARE_VERSION(1,2) && val > 127) | |
893 | val = 127; | |
894 | new_params.exposure.fineExp = val; | |
895 | new_params.exposure.expMode = 1; | |
896 | command_flags |= COMMAND_SETEXPOSURE; | |
897 | if(new_params.flickerControl.flickerMode != 0) | |
898 | command_flags |= COMMAND_SETFLICKERCTRL; | |
899 | new_params.flickerControl.flickerMode = 0; | |
900 | command_flags |= COMMAND_SETFLICKERCTRL; | |
901 | } else | |
902 | retval = -EINVAL; | |
903 | } | |
904 | } else if (MATCH("coarse_exp")) { | |
905 | if (!retval) | |
906 | val = VALUE; | |
907 | ||
908 | if (!retval) { | |
909 | if (val <= MAX_EXP) { | |
910 | if (FIRMWARE_VERSION(1,2) && | |
911 | val > MAX_EXP_102) | |
912 | val = MAX_EXP_102; | |
913 | new_params.exposure.coarseExpLo = | |
914 | val & 0xff; | |
915 | new_params.exposure.coarseExpHi = | |
916 | val >> 8; | |
917 | new_params.exposure.expMode = 1; | |
918 | command_flags |= COMMAND_SETEXPOSURE; | |
919 | if(new_params.flickerControl.flickerMode != 0) | |
920 | command_flags |= COMMAND_SETFLICKERCTRL; | |
921 | new_params.flickerControl.flickerMode = 0; | |
922 | command_flags |= COMMAND_SETFLICKERCTRL; | |
923 | } else | |
924 | retval = -EINVAL; | |
925 | } | |
926 | } else if (MATCH("red_comp")) { | |
927 | if (!retval) | |
928 | val = VALUE; | |
929 | ||
930 | if (!retval) { | |
931 | if (val >= COMP_RED && val <= 255) { | |
932 | new_params.exposure.redComp = val; | |
933 | new_params.exposure.compMode = 1; | |
934 | command_flags |= COMMAND_SETEXPOSURE; | |
935 | } else | |
936 | retval = -EINVAL; | |
937 | } | |
938 | } else if (MATCH("green1_comp")) { | |
939 | if (!retval) | |
940 | val = VALUE; | |
941 | ||
942 | if (!retval) { | |
943 | if (val >= COMP_GREEN1 && val <= 255) { | |
944 | new_params.exposure.green1Comp = val; | |
945 | new_params.exposure.compMode = 1; | |
946 | command_flags |= COMMAND_SETEXPOSURE; | |
947 | } else | |
948 | retval = -EINVAL; | |
949 | } | |
950 | } else if (MATCH("green2_comp")) { | |
951 | if (!retval) | |
952 | val = VALUE; | |
953 | ||
954 | if (!retval) { | |
955 | if (val >= COMP_GREEN2 && val <= 255) { | |
956 | new_params.exposure.green2Comp = val; | |
957 | new_params.exposure.compMode = 1; | |
958 | command_flags |= COMMAND_SETEXPOSURE; | |
959 | } else | |
960 | retval = -EINVAL; | |
961 | } | |
962 | } else if (MATCH("blue_comp")) { | |
963 | if (!retval) | |
964 | val = VALUE; | |
965 | ||
966 | if (!retval) { | |
967 | if (val >= COMP_BLUE && val <= 255) { | |
968 | new_params.exposure.blueComp = val; | |
969 | new_params.exposure.compMode = 1; | |
970 | command_flags |= COMMAND_SETEXPOSURE; | |
971 | } else | |
972 | retval = -EINVAL; | |
973 | } | |
974 | } else if (MATCH("apcor_gain1")) { | |
975 | if (!retval) | |
976 | val = VALUE; | |
977 | ||
978 | if (!retval) { | |
979 | command_flags |= COMMAND_SETAPCOR; | |
980 | if (val <= 0xff) | |
981 | new_params.apcor.gain1 = val; | |
982 | else | |
983 | retval = -EINVAL; | |
984 | } | |
985 | } else if (MATCH("apcor_gain2")) { | |
986 | if (!retval) | |
987 | val = VALUE; | |
988 | ||
989 | if (!retval) { | |
990 | command_flags |= COMMAND_SETAPCOR; | |
991 | if (val <= 0xff) | |
992 | new_params.apcor.gain2 = val; | |
993 | else | |
994 | retval = -EINVAL; | |
995 | } | |
996 | } else if (MATCH("apcor_gain4")) { | |
997 | if (!retval) | |
998 | val = VALUE; | |
999 | ||
1000 | if (!retval) { | |
1001 | command_flags |= COMMAND_SETAPCOR; | |
1002 | if (val <= 0xff) | |
1003 | new_params.apcor.gain4 = val; | |
1004 | else | |
1005 | retval = -EINVAL; | |
1006 | } | |
1007 | } else if (MATCH("apcor_gain8")) { | |
1008 | if (!retval) | |
1009 | val = VALUE; | |
1010 | ||
1011 | if (!retval) { | |
1012 | command_flags |= COMMAND_SETAPCOR; | |
1013 | if (val <= 0xff) | |
1014 | new_params.apcor.gain8 = val; | |
1015 | else | |
1016 | retval = -EINVAL; | |
1017 | } | |
1018 | } else if (MATCH("vl_offset_gain1")) { | |
1019 | if (!retval) | |
1020 | val = VALUE; | |
1021 | ||
1022 | if (!retval) { | |
1023 | if (val <= 0xff) | |
1024 | new_params.vlOffset.gain1 = val; | |
1025 | else | |
1026 | retval = -EINVAL; | |
1027 | } | |
1028 | command_flags |= COMMAND_SETVLOFFSET; | |
1029 | } else if (MATCH("vl_offset_gain2")) { | |
1030 | if (!retval) | |
1031 | val = VALUE; | |
1032 | ||
1033 | if (!retval) { | |
1034 | if (val <= 0xff) | |
1035 | new_params.vlOffset.gain2 = val; | |
1036 | else | |
1037 | retval = -EINVAL; | |
1038 | } | |
1039 | command_flags |= COMMAND_SETVLOFFSET; | |
1040 | } else if (MATCH("vl_offset_gain4")) { | |
1041 | if (!retval) | |
1042 | val = VALUE; | |
1043 | ||
1044 | if (!retval) { | |
1045 | if (val <= 0xff) | |
1046 | new_params.vlOffset.gain4 = val; | |
1047 | else | |
1048 | retval = -EINVAL; | |
1049 | } | |
1050 | command_flags |= COMMAND_SETVLOFFSET; | |
1051 | } else if (MATCH("vl_offset_gain8")) { | |
1052 | if (!retval) | |
1053 | val = VALUE; | |
1054 | ||
1055 | if (!retval) { | |
1056 | if (val <= 0xff) | |
1057 | new_params.vlOffset.gain8 = val; | |
1058 | else | |
1059 | retval = -EINVAL; | |
1060 | } | |
1061 | command_flags |= COMMAND_SETVLOFFSET; | |
1062 | } else if (MATCH("flicker_control")) { | |
1063 | if (!retval && MATCH("on")) { | |
1064 | set_flicker(&new_params, &command_flags, 1); | |
1065 | } else if (!retval && MATCH("off")) { | |
1066 | set_flicker(&new_params, &command_flags, 0); | |
1067 | } else | |
1068 | retval = -EINVAL; | |
1069 | ||
1070 | command_flags |= COMMAND_SETFLICKERCTRL; | |
1071 | } else if (MATCH("mains_frequency")) { | |
1072 | if (!retval && MATCH("50")) { | |
1073 | new_mains = 0; | |
d56410e0 | 1074 | new_params.flickerControl.coarseJump = |
1da177e4 LT |
1075 | flicker_jumps[new_mains] |
1076 | [new_params.sensorFps.baserate] | |
1077 | [new_params.sensorFps.divisor]; | |
1078 | if (new_params.flickerControl.flickerMode) | |
1079 | command_flags |= COMMAND_SETFLICKERCTRL; | |
1080 | } else if (!retval && MATCH("60")) { | |
1081 | new_mains = 1; | |
d56410e0 | 1082 | new_params.flickerControl.coarseJump = |
1da177e4 LT |
1083 | flicker_jumps[new_mains] |
1084 | [new_params.sensorFps.baserate] | |
1085 | [new_params.sensorFps.divisor]; | |
1086 | if (new_params.flickerControl.flickerMode) | |
1087 | command_flags |= COMMAND_SETFLICKERCTRL; | |
1088 | } else | |
1089 | retval = -EINVAL; | |
1090 | } else if (MATCH("allowable_overexposure")) { | |
1091 | if (!retval && MATCH("auto")) { | |
d56410e0 | 1092 | new_params.flickerControl.allowableOverExposure = |
1da177e4 LT |
1093 | -find_over_exposure(new_params.colourParams.brightness); |
1094 | if(new_params.flickerControl.flickerMode != 0) | |
1095 | command_flags |= COMMAND_SETFLICKERCTRL; | |
1096 | } else { | |
1097 | if (!retval) | |
1098 | val = VALUE; | |
1099 | ||
1100 | if (!retval) { | |
1101 | if (val <= 0xff) { | |
1102 | new_params.flickerControl. | |
1103 | allowableOverExposure = val; | |
1104 | if(new_params.flickerControl.flickerMode != 0) | |
1105 | command_flags |= COMMAND_SETFLICKERCTRL; | |
1106 | } else | |
1107 | retval = -EINVAL; | |
1108 | } | |
1109 | } | |
1110 | } else if (MATCH("compression_mode")) { | |
1111 | if (!retval && MATCH("none")) | |
1112 | new_params.compression.mode = | |
1113 | CPIA_COMPRESSION_NONE; | |
1114 | else if (!retval && MATCH("auto")) | |
1115 | new_params.compression.mode = | |
1116 | CPIA_COMPRESSION_AUTO; | |
1117 | else if (!retval && MATCH("manual")) | |
1118 | new_params.compression.mode = | |
1119 | CPIA_COMPRESSION_MANUAL; | |
1120 | else | |
1121 | retval = -EINVAL; | |
1122 | ||
1123 | command_flags |= COMMAND_SETCOMPRESSION; | |
1124 | } else if (MATCH("decimation_enable")) { | |
1125 | if (!retval && MATCH("off")) | |
1126 | new_params.compression.decimation = 0; | |
1127 | else if (!retval && MATCH("on")) | |
1128 | new_params.compression.decimation = 1; | |
1129 | else | |
1130 | retval = -EINVAL; | |
1131 | ||
1132 | command_flags |= COMMAND_SETCOMPRESSION; | |
1133 | } else if (MATCH("compression_target")) { | |
1134 | if (!retval && MATCH("quality")) | |
d56410e0 | 1135 | new_params.compressionTarget.frTargeting = |
1da177e4 LT |
1136 | CPIA_COMPRESSION_TARGET_QUALITY; |
1137 | else if (!retval && MATCH("framerate")) | |
d56410e0 | 1138 | new_params.compressionTarget.frTargeting = |
1da177e4 LT |
1139 | CPIA_COMPRESSION_TARGET_FRAMERATE; |
1140 | else | |
1141 | retval = -EINVAL; | |
1142 | ||
1143 | command_flags |= COMMAND_SETCOMPRESSIONTARGET; | |
1144 | } else if (MATCH("target_framerate")) { | |
1145 | if (!retval) | |
1146 | val = VALUE; | |
1147 | ||
1148 | if (!retval) { | |
1149 | if(val > 0 && val <= 30) | |
1150 | new_params.compressionTarget.targetFR = val; | |
1151 | else | |
1152 | retval = -EINVAL; | |
1153 | } | |
1154 | command_flags |= COMMAND_SETCOMPRESSIONTARGET; | |
1155 | } else if (MATCH("target_quality")) { | |
1156 | if (!retval) | |
1157 | val = VALUE; | |
1158 | ||
1159 | if (!retval) { | |
1160 | if(val > 0 && val <= 64) | |
1161 | new_params.compressionTarget.targetQ = val; | |
d56410e0 | 1162 | else |
1da177e4 LT |
1163 | retval = -EINVAL; |
1164 | } | |
1165 | command_flags |= COMMAND_SETCOMPRESSIONTARGET; | |
1166 | } else if (MATCH("y_threshold")) { | |
1167 | if (!retval) | |
1168 | val = VALUE; | |
1169 | ||
1170 | if (!retval) { | |
1171 | if (val < 32) | |
1172 | new_params.yuvThreshold.yThreshold = val; | |
1173 | else | |
1174 | retval = -EINVAL; | |
1175 | } | |
1176 | command_flags |= COMMAND_SETYUVTHRESH; | |
1177 | } else if (MATCH("uv_threshold")) { | |
1178 | if (!retval) | |
1179 | val = VALUE; | |
1180 | ||
1181 | if (!retval) { | |
1182 | if (val < 32) | |
1183 | new_params.yuvThreshold.uvThreshold = val; | |
1184 | else | |
1185 | retval = -EINVAL; | |
1186 | } | |
1187 | command_flags |= COMMAND_SETYUVTHRESH; | |
1188 | } else if (MATCH("hysteresis")) { | |
1189 | if (!retval) | |
1190 | val = VALUE; | |
1191 | ||
1192 | if (!retval) { | |
1193 | if (val <= 0xff) | |
1194 | new_params.compressionParams.hysteresis = val; | |
1195 | else | |
1196 | retval = -EINVAL; | |
1197 | } | |
1198 | command_flags |= COMMAND_SETCOMPRESSIONPARAMS; | |
1199 | } else if (MATCH("threshold_max")) { | |
1200 | if (!retval) | |
1201 | val = VALUE; | |
1202 | ||
1203 | if (!retval) { | |
1204 | if (val <= 0xff) | |
1205 | new_params.compressionParams.threshMax = val; | |
1206 | else | |
1207 | retval = -EINVAL; | |
1208 | } | |
1209 | command_flags |= COMMAND_SETCOMPRESSIONPARAMS; | |
1210 | } else if (MATCH("small_step")) { | |
1211 | if (!retval) | |
1212 | val = VALUE; | |
1213 | ||
1214 | if (!retval) { | |
1215 | if (val <= 0xff) | |
1216 | new_params.compressionParams.smallStep = val; | |
1217 | else | |
1218 | retval = -EINVAL; | |
1219 | } | |
1220 | command_flags |= COMMAND_SETCOMPRESSIONPARAMS; | |
1221 | } else if (MATCH("large_step")) { | |
1222 | if (!retval) | |
1223 | val = VALUE; | |
1224 | ||
1225 | if (!retval) { | |
1226 | if (val <= 0xff) | |
1227 | new_params.compressionParams.largeStep = val; | |
1228 | else | |
1229 | retval = -EINVAL; | |
1230 | } | |
1231 | command_flags |= COMMAND_SETCOMPRESSIONPARAMS; | |
1232 | } else if (MATCH("decimation_hysteresis")) { | |
1233 | if (!retval) | |
1234 | val = VALUE; | |
1235 | ||
1236 | if (!retval) { | |
1237 | if (val <= 0xff) | |
1238 | new_params.compressionParams.decimationHysteresis = val; | |
1239 | else | |
1240 | retval = -EINVAL; | |
1241 | } | |
1242 | command_flags |= COMMAND_SETCOMPRESSIONPARAMS; | |
1243 | } else if (MATCH("fr_diff_step_thresh")) { | |
1244 | if (!retval) | |
1245 | val = VALUE; | |
1246 | ||
1247 | if (!retval) { | |
1248 | if (val <= 0xff) | |
1249 | new_params.compressionParams.frDiffStepThresh = val; | |
1250 | else | |
1251 | retval = -EINVAL; | |
1252 | } | |
1253 | command_flags |= COMMAND_SETCOMPRESSIONPARAMS; | |
1254 | } else if (MATCH("q_diff_step_thresh")) { | |
1255 | if (!retval) | |
1256 | val = VALUE; | |
1257 | ||
1258 | if (!retval) { | |
1259 | if (val <= 0xff) | |
1260 | new_params.compressionParams.qDiffStepThresh = val; | |
1261 | else | |
1262 | retval = -EINVAL; | |
1263 | } | |
1264 | command_flags |= COMMAND_SETCOMPRESSIONPARAMS; | |
1265 | } else if (MATCH("decimation_thresh_mod")) { | |
1266 | if (!retval) | |
1267 | val = VALUE; | |
1268 | ||
1269 | if (!retval) { | |
1270 | if (val <= 0xff) | |
1271 | new_params.compressionParams.decimationThreshMod = val; | |
1272 | else | |
1273 | retval = -EINVAL; | |
1274 | } | |
1275 | command_flags |= COMMAND_SETCOMPRESSIONPARAMS; | |
1276 | } else if (MATCH("toplight")) { | |
d56410e0 | 1277 | if (!retval && MATCH("on")) |
1da177e4 LT |
1278 | new_params.qx3.toplight = 1; |
1279 | else if (!retval && MATCH("off")) | |
1280 | new_params.qx3.toplight = 0; | |
d56410e0 | 1281 | else |
1da177e4 LT |
1282 | retval = -EINVAL; |
1283 | command_flags |= COMMAND_SETLIGHTS; | |
1284 | } else if (MATCH("bottomlight")) { | |
d56410e0 | 1285 | if (!retval && MATCH("on")) |
1da177e4 | 1286 | new_params.qx3.bottomlight = 1; |
d56410e0 | 1287 | else if (!retval && MATCH("off")) |
1da177e4 | 1288 | new_params.qx3.bottomlight = 0; |
d56410e0 | 1289 | else |
1da177e4 LT |
1290 | retval = -EINVAL; |
1291 | command_flags |= COMMAND_SETLIGHTS; | |
1292 | } else { | |
1293 | DBG("No match found\n"); | |
1294 | retval = -EINVAL; | |
1295 | } | |
1296 | ||
1297 | if (!retval) { | |
1298 | while (count && isspace(*buffer) && *buffer != '\n') { | |
1299 | --count; | |
1300 | ++buffer; | |
1301 | } | |
1302 | if (count) { | |
1303 | if (*buffer == '\0' && count != 1) | |
1304 | retval = -EINVAL; | |
1305 | else if (*buffer != '\n' && *buffer != ';' && | |
1306 | *buffer != '\0') | |
1307 | retval = -EINVAL; | |
1308 | else { | |
1309 | --count; | |
1310 | ++buffer; | |
1311 | } | |
1312 | } | |
1313 | } | |
1314 | } | |
d56410e0 | 1315 | #undef MATCH |
1da177e4 LT |
1316 | #undef VALUE |
1317 | #undef FIRMWARE_VERSION | |
1318 | if (!retval) { | |
1319 | if (command_flags & COMMAND_SETCOLOURPARAMS) { | |
1320 | /* Adjust cam->vp to reflect these changes */ | |
1321 | cam->vp.brightness = | |
1322 | new_params.colourParams.brightness*65535/100; | |
1323 | cam->vp.contrast = | |
1324 | new_params.colourParams.contrast*65535/100; | |
1325 | cam->vp.colour = | |
1326 | new_params.colourParams.saturation*65535/100; | |
1327 | } | |
1328 | if((command_flags & COMMAND_SETEXPOSURE) && | |
1329 | new_params.exposure.expMode == 2) | |
1330 | cam->exposure_status = EXPOSURE_NORMAL; | |
1331 | ||
1332 | memcpy(&cam->params, &new_params, sizeof(struct cam_params)); | |
1333 | cam->mainsFreq = new_mains; | |
1334 | cam->cmd_queue |= command_flags; | |
1335 | retval = size; | |
1336 | } else | |
1337 | DBG("error: %d\n", retval); | |
d56410e0 | 1338 | |
3593cab5 | 1339 | mutex_unlock(&cam->param_lock); |
d56410e0 | 1340 | |
1da177e4 LT |
1341 | out: |
1342 | free_page((unsigned long)page); | |
d56410e0 | 1343 | return retval; |
1da177e4 LT |
1344 | } |
1345 | ||
1346 | static void create_proc_cpia_cam(struct cam_data *cam) | |
1347 | { | |
13071f0a | 1348 | char name[5 + 1 + 10 + 1]; |
1da177e4 | 1349 | struct proc_dir_entry *ent; |
d56410e0 | 1350 | |
1da177e4 LT |
1351 | if (!cpia_proc_root || !cam) |
1352 | return; | |
1353 | ||
13071f0a | 1354 | snprintf(name, sizeof(name), "video%d", cam->vdev.minor); |
d56410e0 | 1355 | |
1da177e4 LT |
1356 | ent = create_proc_entry(name, S_IFREG|S_IRUGO|S_IWUSR, cpia_proc_root); |
1357 | if (!ent) | |
1358 | return; | |
1359 | ||
1360 | ent->data = cam; | |
1361 | ent->read_proc = cpia_read_proc; | |
1362 | ent->write_proc = cpia_write_proc; | |
d56410e0 | 1363 | /* |
1da177e4 | 1364 | size of the proc entry is 3736 bytes for the standard webcam; |
d56410e0 | 1365 | the extra features of the QX3 microscope add 189 bytes. |
1da177e4 LT |
1366 | (we have not yet probed the camera to see which type it is). |
1367 | */ | |
1368 | ent->size = 3736 + 189; | |
1369 | cam->proc_entry = ent; | |
1370 | } | |
1371 | ||
1372 | static void destroy_proc_cpia_cam(struct cam_data *cam) | |
1373 | { | |
13071f0a | 1374 | char name[5 + 1 + 10 + 1]; |
d56410e0 | 1375 | |
1da177e4 LT |
1376 | if (!cam || !cam->proc_entry) |
1377 | return; | |
d56410e0 | 1378 | |
13071f0a | 1379 | snprintf(name, sizeof(name), "video%d", cam->vdev.minor); |
1da177e4 LT |
1380 | remove_proc_entry(name, cpia_proc_root); |
1381 | cam->proc_entry = NULL; | |
1382 | } | |
1383 | ||
1384 | static void proc_cpia_create(void) | |
1385 | { | |
66600221 | 1386 | cpia_proc_root = proc_mkdir("cpia", NULL); |
1da177e4 LT |
1387 | |
1388 | if (cpia_proc_root) | |
1389 | cpia_proc_root->owner = THIS_MODULE; | |
1390 | else | |
1391 | LOG("Unable to initialise /proc/cpia\n"); | |
1392 | } | |
1393 | ||
1394 | static void __exit proc_cpia_destroy(void) | |
1395 | { | |
1396 | remove_proc_entry("cpia", NULL); | |
1397 | } | |
1398 | #endif /* CONFIG_PROC_FS */ | |
1399 | ||
1400 | /* ----------------------- debug functions ---------------------- */ | |
1401 | ||
1402 | #define printstatus(cam) \ | |
1403 | DBG("%02x %02x %02x %02x %02x %02x %02x %02x\n",\ | |
1404 | cam->params.status.systemState, cam->params.status.grabState, \ | |
1405 | cam->params.status.streamState, cam->params.status.fatalError, \ | |
1406 | cam->params.status.cmdError, cam->params.status.debugFlags, \ | |
1407 | cam->params.status.vpStatus, cam->params.status.errorCode); | |
1408 | ||
1409 | /* ----------------------- v4l helpers -------------------------- */ | |
1410 | ||
1411 | /* supported frame palettes and depths */ | |
1412 | static inline int valid_mode(u16 palette, u16 depth) | |
1413 | { | |
1414 | if ((palette == VIDEO_PALETTE_YUV422 && depth == 16) || | |
1415 | (palette == VIDEO_PALETTE_YUYV && depth == 16)) | |
1416 | return 1; | |
1417 | ||
1418 | if (colorspace_conv) | |
1419 | return (palette == VIDEO_PALETTE_GREY && depth == 8) || | |
1420 | (palette == VIDEO_PALETTE_RGB555 && depth == 16) || | |
1421 | (palette == VIDEO_PALETTE_RGB565 && depth == 16) || | |
1422 | (palette == VIDEO_PALETTE_RGB24 && depth == 24) || | |
1423 | (palette == VIDEO_PALETTE_RGB32 && depth == 32) || | |
1424 | (palette == VIDEO_PALETTE_UYVY && depth == 16); | |
1425 | ||
1426 | return 0; | |
1427 | } | |
1428 | ||
1429 | static int match_videosize( int width, int height ) | |
1430 | { | |
1431 | /* return the best match, where 'best' is as always | |
1432 | * the largest that is not bigger than what is requested. */ | |
1433 | if (width>=352 && height>=288) | |
1434 | return VIDEOSIZE_352_288; /* CIF */ | |
1435 | ||
1436 | if (width>=320 && height>=240) | |
1437 | return VIDEOSIZE_320_240; /* SIF */ | |
1438 | ||
1439 | if (width>=288 && height>=216) | |
1440 | return VIDEOSIZE_288_216; | |
1441 | ||
1442 | if (width>=256 && height>=192) | |
1443 | return VIDEOSIZE_256_192; | |
1444 | ||
1445 | if (width>=224 && height>=168) | |
1446 | return VIDEOSIZE_224_168; | |
1447 | ||
1448 | if (width>=192 && height>=144) | |
1449 | return VIDEOSIZE_192_144; | |
1450 | ||
1451 | if (width>=176 && height>=144) | |
1452 | return VIDEOSIZE_176_144; /* QCIF */ | |
1453 | ||
1454 | if (width>=160 && height>=120) | |
1455 | return VIDEOSIZE_160_120; /* QSIF */ | |
1456 | ||
1457 | if (width>=128 && height>=96) | |
1458 | return VIDEOSIZE_128_96; | |
1459 | ||
1460 | if (width>=88 && height>=72) | |
1461 | return VIDEOSIZE_88_72; | |
1462 | ||
1463 | if (width>=64 && height>=48) | |
1464 | return VIDEOSIZE_64_48; | |
1465 | ||
1466 | if (width>=48 && height>=48) | |
1467 | return VIDEOSIZE_48_48; | |
1468 | ||
1469 | return -1; | |
1470 | } | |
1471 | ||
1472 | /* these are the capture sizes we support */ | |
1473 | static void set_vw_size(struct cam_data *cam) | |
1474 | { | |
1475 | /* the col/row/start/end values are the result of simple math */ | |
1476 | /* study the SetROI-command in cpia developers guide p 2-22 */ | |
1477 | /* streamStartLine is set to the recommended value in the cpia */ | |
1478 | /* developers guide p 3-37 */ | |
1479 | switch(cam->video_size) { | |
1480 | case VIDEOSIZE_CIF: | |
1481 | cam->vw.width = 352; | |
1482 | cam->vw.height = 288; | |
1483 | cam->params.format.videoSize=VIDEOSIZE_CIF; | |
1484 | cam->params.roi.colStart=0; | |
1485 | cam->params.roi.rowStart=0; | |
1486 | cam->params.streamStartLine = 120; | |
1487 | break; | |
1488 | case VIDEOSIZE_SIF: | |
1489 | cam->vw.width = 320; | |
1490 | cam->vw.height = 240; | |
1491 | cam->params.format.videoSize=VIDEOSIZE_CIF; | |
1492 | cam->params.roi.colStart=2; | |
1493 | cam->params.roi.rowStart=6; | |
1494 | cam->params.streamStartLine = 120; | |
1495 | break; | |
1496 | case VIDEOSIZE_288_216: | |
1497 | cam->vw.width = 288; | |
1498 | cam->vw.height = 216; | |
1499 | cam->params.format.videoSize=VIDEOSIZE_CIF; | |
1500 | cam->params.roi.colStart=4; | |
1501 | cam->params.roi.rowStart=9; | |
1502 | cam->params.streamStartLine = 120; | |
1503 | break; | |
1504 | case VIDEOSIZE_256_192: | |
1505 | cam->vw.width = 256; | |
1506 | cam->vw.height = 192; | |
1507 | cam->params.format.videoSize=VIDEOSIZE_CIF; | |
1508 | cam->params.roi.colStart=6; | |
1509 | cam->params.roi.rowStart=12; | |
1510 | cam->params.streamStartLine = 120; | |
1511 | break; | |
1512 | case VIDEOSIZE_224_168: | |
1513 | cam->vw.width = 224; | |
1514 | cam->vw.height = 168; | |
1515 | cam->params.format.videoSize=VIDEOSIZE_CIF; | |
1516 | cam->params.roi.colStart=8; | |
1517 | cam->params.roi.rowStart=15; | |
1518 | cam->params.streamStartLine = 120; | |
1519 | break; | |
1520 | case VIDEOSIZE_192_144: | |
1521 | cam->vw.width = 192; | |
1522 | cam->vw.height = 144; | |
1523 | cam->params.format.videoSize=VIDEOSIZE_CIF; | |
1524 | cam->params.roi.colStart=10; | |
1525 | cam->params.roi.rowStart=18; | |
1526 | cam->params.streamStartLine = 120; | |
1527 | break; | |
1528 | case VIDEOSIZE_QCIF: | |
1529 | cam->vw.width = 176; | |
1530 | cam->vw.height = 144; | |
1531 | cam->params.format.videoSize=VIDEOSIZE_QCIF; | |
1532 | cam->params.roi.colStart=0; | |
1533 | cam->params.roi.rowStart=0; | |
1534 | cam->params.streamStartLine = 60; | |
1535 | break; | |
1536 | case VIDEOSIZE_QSIF: | |
1537 | cam->vw.width = 160; | |
1538 | cam->vw.height = 120; | |
1539 | cam->params.format.videoSize=VIDEOSIZE_QCIF; | |
1540 | cam->params.roi.colStart=1; | |
1541 | cam->params.roi.rowStart=3; | |
1542 | cam->params.streamStartLine = 60; | |
1543 | break; | |
1544 | case VIDEOSIZE_128_96: | |
1545 | cam->vw.width = 128; | |
1546 | cam->vw.height = 96; | |
1547 | cam->params.format.videoSize=VIDEOSIZE_QCIF; | |
1548 | cam->params.roi.colStart=3; | |
1549 | cam->params.roi.rowStart=6; | |
1550 | cam->params.streamStartLine = 60; | |
1551 | break; | |
1552 | case VIDEOSIZE_88_72: | |
1553 | cam->vw.width = 88; | |
1554 | cam->vw.height = 72; | |
1555 | cam->params.format.videoSize=VIDEOSIZE_QCIF; | |
1556 | cam->params.roi.colStart=5; | |
1557 | cam->params.roi.rowStart=9; | |
1558 | cam->params.streamStartLine = 60; | |
1559 | break; | |
1560 | case VIDEOSIZE_64_48: | |
1561 | cam->vw.width = 64; | |
1562 | cam->vw.height = 48; | |
1563 | cam->params.format.videoSize=VIDEOSIZE_QCIF; | |
1564 | cam->params.roi.colStart=7; | |
1565 | cam->params.roi.rowStart=12; | |
1566 | cam->params.streamStartLine = 60; | |
1567 | break; | |
1568 | case VIDEOSIZE_48_48: | |
1569 | cam->vw.width = 48; | |
1570 | cam->vw.height = 48; | |
1571 | cam->params.format.videoSize=VIDEOSIZE_QCIF; | |
1572 | cam->params.roi.colStart=8; | |
1573 | cam->params.roi.rowStart=6; | |
1574 | cam->params.streamStartLine = 60; | |
1575 | break; | |
1576 | default: | |
1577 | LOG("bad videosize value: %d\n", cam->video_size); | |
1578 | return; | |
1579 | } | |
1580 | ||
1581 | if(cam->vc.width == 0) | |
1582 | cam->vc.width = cam->vw.width; | |
1583 | if(cam->vc.height == 0) | |
1584 | cam->vc.height = cam->vw.height; | |
d56410e0 | 1585 | |
1da177e4 LT |
1586 | cam->params.roi.colStart += cam->vc.x >> 3; |
1587 | cam->params.roi.colEnd = cam->params.roi.colStart + | |
d56410e0 | 1588 | (cam->vc.width >> 3); |
1da177e4 LT |
1589 | cam->params.roi.rowStart += cam->vc.y >> 2; |
1590 | cam->params.roi.rowEnd = cam->params.roi.rowStart + | |
d56410e0 | 1591 | (cam->vc.height >> 2); |
1da177e4 LT |
1592 | |
1593 | return; | |
1594 | } | |
1595 | ||
1596 | static int allocate_frame_buf(struct cam_data *cam) | |
1597 | { | |
1598 | int i; | |
1599 | ||
1600 | cam->frame_buf = rvmalloc(FRAME_NUM * CPIA_MAX_FRAME_SIZE); | |
1601 | if (!cam->frame_buf) | |
1602 | return -ENOBUFS; | |
1603 | ||
1604 | for (i = 0; i < FRAME_NUM; i++) | |
1605 | cam->frame[i].data = cam->frame_buf + i * CPIA_MAX_FRAME_SIZE; | |
1606 | ||
1607 | return 0; | |
1608 | } | |
1609 | ||
1610 | static int free_frame_buf(struct cam_data *cam) | |
1611 | { | |
1612 | int i; | |
d56410e0 | 1613 | |
1da177e4 LT |
1614 | rvfree(cam->frame_buf, FRAME_NUM*CPIA_MAX_FRAME_SIZE); |
1615 | cam->frame_buf = NULL; | |
1616 | for (i=0; i < FRAME_NUM; i++) | |
1617 | cam->frame[i].data = NULL; | |
1618 | ||
1619 | return 0; | |
1620 | } | |
1621 | ||
1622 | ||
1623 | static inline void free_frames(struct cpia_frame frame[FRAME_NUM]) | |
1624 | { | |
1625 | int i; | |
1626 | ||
1627 | for (i=0; i < FRAME_NUM; i++) | |
1628 | frame[i].state = FRAME_UNUSED; | |
1629 | return; | |
1630 | } | |
1631 | ||
1632 | /********************************************************************** | |
1633 | * | |
1634 | * General functions | |
1635 | * | |
1636 | **********************************************************************/ | |
1637 | /* send an arbitrary command to the camera */ | |
1638 | static int do_command(struct cam_data *cam, u16 command, u8 a, u8 b, u8 c, u8 d) | |
1639 | { | |
1640 | int retval, datasize; | |
1641 | u8 cmd[8], data[8]; | |
1642 | ||
1643 | switch(command) { | |
1644 | case CPIA_COMMAND_GetCPIAVersion: | |
1645 | case CPIA_COMMAND_GetPnPID: | |
1646 | case CPIA_COMMAND_GetCameraStatus: | |
1647 | case CPIA_COMMAND_GetVPVersion: | |
1648 | datasize=8; | |
1649 | break; | |
1650 | case CPIA_COMMAND_GetColourParams: | |
1651 | case CPIA_COMMAND_GetColourBalance: | |
1652 | case CPIA_COMMAND_GetExposure: | |
3593cab5 | 1653 | mutex_lock(&cam->param_lock); |
1da177e4 LT |
1654 | datasize=8; |
1655 | break; | |
d56410e0 | 1656 | case CPIA_COMMAND_ReadMCPorts: |
1da177e4 LT |
1657 | case CPIA_COMMAND_ReadVCRegs: |
1658 | datasize = 4; | |
1659 | break; | |
1660 | default: | |
1661 | datasize=0; | |
1662 | break; | |
1663 | } | |
1664 | ||
1665 | cmd[0] = command>>8; | |
1666 | cmd[1] = command&0xff; | |
1667 | cmd[2] = a; | |
1668 | cmd[3] = b; | |
1669 | cmd[4] = c; | |
1670 | cmd[5] = d; | |
1671 | cmd[6] = datasize; | |
1672 | cmd[7] = 0; | |
1673 | ||
1674 | retval = cam->ops->transferCmd(cam->lowlevel_data, cmd, data); | |
1675 | if (retval) { | |
1676 | DBG("%x - failed, retval=%d\n", command, retval); | |
1677 | if (command == CPIA_COMMAND_GetColourParams || | |
1678 | command == CPIA_COMMAND_GetColourBalance || | |
1679 | command == CPIA_COMMAND_GetExposure) | |
3593cab5 | 1680 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
1681 | } else { |
1682 | switch(command) { | |
1683 | case CPIA_COMMAND_GetCPIAVersion: | |
1684 | cam->params.version.firmwareVersion = data[0]; | |
1685 | cam->params.version.firmwareRevision = data[1]; | |
1686 | cam->params.version.vcVersion = data[2]; | |
1687 | cam->params.version.vcRevision = data[3]; | |
1688 | break; | |
1689 | case CPIA_COMMAND_GetPnPID: | |
1690 | cam->params.pnpID.vendor = data[0]+(((u16)data[1])<<8); | |
1691 | cam->params.pnpID.product = data[2]+(((u16)data[3])<<8); | |
1692 | cam->params.pnpID.deviceRevision = | |
1693 | data[4]+(((u16)data[5])<<8); | |
1694 | break; | |
1695 | case CPIA_COMMAND_GetCameraStatus: | |
1696 | cam->params.status.systemState = data[0]; | |
1697 | cam->params.status.grabState = data[1]; | |
1698 | cam->params.status.streamState = data[2]; | |
1699 | cam->params.status.fatalError = data[3]; | |
1700 | cam->params.status.cmdError = data[4]; | |
1701 | cam->params.status.debugFlags = data[5]; | |
1702 | cam->params.status.vpStatus = data[6]; | |
1703 | cam->params.status.errorCode = data[7]; | |
1704 | break; | |
1705 | case CPIA_COMMAND_GetVPVersion: | |
1706 | cam->params.vpVersion.vpVersion = data[0]; | |
1707 | cam->params.vpVersion.vpRevision = data[1]; | |
1708 | cam->params.vpVersion.cameraHeadID = | |
1709 | data[2]+(((u16)data[3])<<8); | |
1710 | break; | |
1711 | case CPIA_COMMAND_GetColourParams: | |
1712 | cam->params.colourParams.brightness = data[0]; | |
1713 | cam->params.colourParams.contrast = data[1]; | |
1714 | cam->params.colourParams.saturation = data[2]; | |
3593cab5 | 1715 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
1716 | break; |
1717 | case CPIA_COMMAND_GetColourBalance: | |
1718 | cam->params.colourBalance.redGain = data[0]; | |
1719 | cam->params.colourBalance.greenGain = data[1]; | |
1720 | cam->params.colourBalance.blueGain = data[2]; | |
3593cab5 | 1721 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
1722 | break; |
1723 | case CPIA_COMMAND_GetExposure: | |
1724 | cam->params.exposure.gain = data[0]; | |
1725 | cam->params.exposure.fineExp = data[1]; | |
1726 | cam->params.exposure.coarseExpLo = data[2]; | |
1727 | cam->params.exposure.coarseExpHi = data[3]; | |
1728 | cam->params.exposure.redComp = data[4]; | |
1729 | cam->params.exposure.green1Comp = data[5]; | |
1730 | cam->params.exposure.green2Comp = data[6]; | |
1731 | cam->params.exposure.blueComp = data[7]; | |
3593cab5 | 1732 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
1733 | break; |
1734 | ||
d56410e0 MCC |
1735 | case CPIA_COMMAND_ReadMCPorts: |
1736 | if (!cam->params.qx3.qx3_detected) | |
1da177e4 | 1737 | break; |
d56410e0 | 1738 | /* test button press */ |
1da177e4 LT |
1739 | cam->params.qx3.button = ((data[1] & 0x02) == 0); |
1740 | if (cam->params.qx3.button) { | |
1741 | /* button pressed - unlock the latch */ | |
1742 | do_command(cam,CPIA_COMMAND_WriteMCPort,3,0xDF,0xDF,0); | |
1743 | do_command(cam,CPIA_COMMAND_WriteMCPort,3,0xFF,0xFF,0); | |
1744 | } | |
1745 | ||
1746 | /* test whether microscope is cradled */ | |
1747 | cam->params.qx3.cradled = ((data[2] & 0x40) == 0); | |
1748 | break; | |
1749 | ||
1750 | default: | |
1751 | break; | |
1752 | } | |
1753 | } | |
1754 | return retval; | |
1755 | } | |
1756 | ||
1757 | /* send a command to the camera with an additional data transaction */ | |
1758 | static int do_command_extended(struct cam_data *cam, u16 command, | |
d56410e0 MCC |
1759 | u8 a, u8 b, u8 c, u8 d, |
1760 | u8 e, u8 f, u8 g, u8 h, | |
1761 | u8 i, u8 j, u8 k, u8 l) | |
1da177e4 LT |
1762 | { |
1763 | int retval; | |
1764 | u8 cmd[8], data[8]; | |
1765 | ||
1766 | cmd[0] = command>>8; | |
1767 | cmd[1] = command&0xff; | |
1768 | cmd[2] = a; | |
1769 | cmd[3] = b; | |
1770 | cmd[4] = c; | |
1771 | cmd[5] = d; | |
1772 | cmd[6] = 8; | |
1773 | cmd[7] = 0; | |
1774 | data[0] = e; | |
1775 | data[1] = f; | |
1776 | data[2] = g; | |
1777 | data[3] = h; | |
1778 | data[4] = i; | |
1779 | data[5] = j; | |
1780 | data[6] = k; | |
1781 | data[7] = l; | |
1782 | ||
1783 | retval = cam->ops->transferCmd(cam->lowlevel_data, cmd, data); | |
1784 | if (retval) | |
1785 | DBG("%x - failed\n", command); | |
1786 | ||
1787 | return retval; | |
1788 | } | |
1789 | ||
1790 | /********************************************************************** | |
1791 | * | |
1792 | * Colorspace conversion | |
1793 | * | |
1794 | **********************************************************************/ | |
1795 | #define LIMIT(x) ((((x)>0xffffff)?0xff0000:(((x)<=0xffff)?0:(x)&0xff0000))>>16) | |
1796 | ||
1797 | static int convert420(unsigned char *yuv, unsigned char *rgb, int out_fmt, | |
d56410e0 | 1798 | int linesize, int mmap_kludge) |
1da177e4 LT |
1799 | { |
1800 | int y, u, v, r, g, b, y1; | |
d56410e0 | 1801 | |
1da177e4 LT |
1802 | /* Odd lines use the same u and v as the previous line. |
1803 | * Because of compression, it is necessary to get this | |
1804 | * information from the decoded image. */ | |
1805 | switch(out_fmt) { | |
1806 | case VIDEO_PALETTE_RGB555: | |
1807 | y = (*yuv++ - 16) * 76310; | |
1808 | y1 = (*yuv - 16) * 76310; | |
1809 | r = ((*(rgb+1-linesize)) & 0x7c) << 1; | |
1810 | g = ((*(rgb-linesize)) & 0xe0) >> 4 | | |
1811 | ((*(rgb+1-linesize)) & 0x03) << 6; | |
1812 | b = ((*(rgb-linesize)) & 0x1f) << 3; | |
1813 | u = (-53294 * r - 104635 * g + 157929 * b) / 5756495; | |
1814 | v = (157968 * r - 132278 * g - 25690 * b) / 5366159; | |
1815 | r = 104635 * v; | |
1816 | g = -25690 * u - 53294 * v; | |
1817 | b = 132278 * u; | |
1818 | *rgb++ = ((LIMIT(g+y) & 0xf8) << 2) | (LIMIT(b+y) >> 3); | |
1819 | *rgb++ = ((LIMIT(r+y) & 0xf8) >> 1) | (LIMIT(g+y) >> 6); | |
1820 | *rgb++ = ((LIMIT(g+y1) & 0xf8) << 2) | (LIMIT(b+y1) >> 3); | |
1821 | *rgb = ((LIMIT(r+y1) & 0xf8) >> 1) | (LIMIT(g+y1) >> 6); | |
1822 | return 4; | |
1823 | case VIDEO_PALETTE_RGB565: | |
1824 | y = (*yuv++ - 16) * 76310; | |
1825 | y1 = (*yuv - 16) * 76310; | |
1826 | r = (*(rgb+1-linesize)) & 0xf8; | |
1827 | g = ((*(rgb-linesize)) & 0xe0) >> 3 | | |
1828 | ((*(rgb+1-linesize)) & 0x07) << 5; | |
1829 | b = ((*(rgb-linesize)) & 0x1f) << 3; | |
1830 | u = (-53294 * r - 104635 * g + 157929 * b) / 5756495; | |
1831 | v = (157968 * r - 132278 * g - 25690 * b) / 5366159; | |
1832 | r = 104635 * v; | |
1833 | g = -25690 * u - 53294 * v; | |
1834 | b = 132278 * u; | |
1835 | *rgb++ = ((LIMIT(g+y) & 0xfc) << 3) | (LIMIT(b+y) >> 3); | |
1836 | *rgb++ = (LIMIT(r+y) & 0xf8) | (LIMIT(g+y) >> 5); | |
1837 | *rgb++ = ((LIMIT(g+y1) & 0xfc) << 3) | (LIMIT(b+y1) >> 3); | |
1838 | *rgb = (LIMIT(r+y1) & 0xf8) | (LIMIT(g+y1) >> 5); | |
1839 | return 4; | |
1840 | break; | |
1841 | case VIDEO_PALETTE_RGB24: | |
1842 | case VIDEO_PALETTE_RGB32: | |
1843 | y = (*yuv++ - 16) * 76310; | |
1844 | y1 = (*yuv - 16) * 76310; | |
1845 | if (mmap_kludge) { | |
1846 | r = *(rgb+2-linesize); | |
1847 | g = *(rgb+1-linesize); | |
1848 | b = *(rgb-linesize); | |
1849 | } else { | |
1850 | r = *(rgb-linesize); | |
1851 | g = *(rgb+1-linesize); | |
1852 | b = *(rgb+2-linesize); | |
1853 | } | |
1854 | u = (-53294 * r - 104635 * g + 157929 * b) / 5756495; | |
1855 | v = (157968 * r - 132278 * g - 25690 * b) / 5366159; | |
1856 | r = 104635 * v; | |
1857 | g = -25690 * u + -53294 * v; | |
1858 | b = 132278 * u; | |
1859 | if (mmap_kludge) { | |
1860 | *rgb++ = LIMIT(b+y); | |
1861 | *rgb++ = LIMIT(g+y); | |
1862 | *rgb++ = LIMIT(r+y); | |
1863 | if(out_fmt == VIDEO_PALETTE_RGB32) | |
1864 | rgb++; | |
1865 | *rgb++ = LIMIT(b+y1); | |
1866 | *rgb++ = LIMIT(g+y1); | |
1867 | *rgb = LIMIT(r+y1); | |
1868 | } else { | |
1869 | *rgb++ = LIMIT(r+y); | |
1870 | *rgb++ = LIMIT(g+y); | |
1871 | *rgb++ = LIMIT(b+y); | |
1872 | if(out_fmt == VIDEO_PALETTE_RGB32) | |
1873 | rgb++; | |
1874 | *rgb++ = LIMIT(r+y1); | |
1875 | *rgb++ = LIMIT(g+y1); | |
1876 | *rgb = LIMIT(b+y1); | |
1877 | } | |
1878 | if(out_fmt == VIDEO_PALETTE_RGB32) | |
1879 | return 8; | |
1880 | return 6; | |
1881 | case VIDEO_PALETTE_YUV422: | |
1882 | case VIDEO_PALETTE_YUYV: | |
1883 | y = *yuv++; | |
1884 | u = *(rgb+1-linesize); | |
1885 | y1 = *yuv; | |
1886 | v = *(rgb+3-linesize); | |
1887 | *rgb++ = y; | |
1888 | *rgb++ = u; | |
1889 | *rgb++ = y1; | |
1890 | *rgb = v; | |
1891 | return 4; | |
1892 | case VIDEO_PALETTE_UYVY: | |
1893 | u = *(rgb-linesize); | |
1894 | y = *yuv++; | |
1895 | v = *(rgb+2-linesize); | |
1896 | y1 = *yuv; | |
1897 | *rgb++ = u; | |
1898 | *rgb++ = y; | |
1899 | *rgb++ = v; | |
1900 | *rgb = y1; | |
1901 | return 4; | |
1902 | case VIDEO_PALETTE_GREY: | |
1903 | *rgb++ = *yuv++; | |
1904 | *rgb = *yuv; | |
1905 | return 2; | |
1906 | default: | |
1907 | DBG("Empty: %d\n", out_fmt); | |
1908 | return 0; | |
1909 | } | |
1910 | } | |
1911 | ||
1912 | ||
1913 | static int yuvconvert(unsigned char *yuv, unsigned char *rgb, int out_fmt, | |
d56410e0 | 1914 | int in_uyvy, int mmap_kludge) |
1da177e4 LT |
1915 | { |
1916 | int y, u, v, r, g, b, y1; | |
1917 | ||
1918 | switch(out_fmt) { | |
1919 | case VIDEO_PALETTE_RGB555: | |
1920 | case VIDEO_PALETTE_RGB565: | |
1921 | case VIDEO_PALETTE_RGB24: | |
1922 | case VIDEO_PALETTE_RGB32: | |
1923 | if (in_uyvy) { | |
1924 | u = *yuv++ - 128; | |
1925 | y = (*yuv++ - 16) * 76310; | |
1926 | v = *yuv++ - 128; | |
1927 | y1 = (*yuv - 16) * 76310; | |
1928 | } else { | |
1929 | y = (*yuv++ - 16) * 76310; | |
1930 | u = *yuv++ - 128; | |
1931 | y1 = (*yuv++ - 16) * 76310; | |
1932 | v = *yuv - 128; | |
1933 | } | |
1934 | r = 104635 * v; | |
1935 | g = -25690 * u + -53294 * v; | |
1936 | b = 132278 * u; | |
1937 | break; | |
1938 | default: | |
1939 | y = *yuv++; | |
1940 | u = *yuv++; | |
1941 | y1 = *yuv++; | |
1942 | v = *yuv; | |
1943 | /* Just to avoid compiler warnings */ | |
1944 | r = 0; | |
1945 | g = 0; | |
1946 | b = 0; | |
1947 | break; | |
1948 | } | |
1949 | switch(out_fmt) { | |
1950 | case VIDEO_PALETTE_RGB555: | |
1951 | *rgb++ = ((LIMIT(g+y) & 0xf8) << 2) | (LIMIT(b+y) >> 3); | |
1952 | *rgb++ = ((LIMIT(r+y) & 0xf8) >> 1) | (LIMIT(g+y) >> 6); | |
1953 | *rgb++ = ((LIMIT(g+y1) & 0xf8) << 2) | (LIMIT(b+y1) >> 3); | |
1954 | *rgb = ((LIMIT(r+y1) & 0xf8) >> 1) | (LIMIT(g+y1) >> 6); | |
1955 | return 4; | |
1956 | case VIDEO_PALETTE_RGB565: | |
1957 | *rgb++ = ((LIMIT(g+y) & 0xfc) << 3) | (LIMIT(b+y) >> 3); | |
1958 | *rgb++ = (LIMIT(r+y) & 0xf8) | (LIMIT(g+y) >> 5); | |
1959 | *rgb++ = ((LIMIT(g+y1) & 0xfc) << 3) | (LIMIT(b+y1) >> 3); | |
1960 | *rgb = (LIMIT(r+y1) & 0xf8) | (LIMIT(g+y1) >> 5); | |
1961 | return 4; | |
1962 | case VIDEO_PALETTE_RGB24: | |
1963 | if (mmap_kludge) { | |
1964 | *rgb++ = LIMIT(b+y); | |
1965 | *rgb++ = LIMIT(g+y); | |
1966 | *rgb++ = LIMIT(r+y); | |
1967 | *rgb++ = LIMIT(b+y1); | |
1968 | *rgb++ = LIMIT(g+y1); | |
1969 | *rgb = LIMIT(r+y1); | |
1970 | } else { | |
1971 | *rgb++ = LIMIT(r+y); | |
1972 | *rgb++ = LIMIT(g+y); | |
1973 | *rgb++ = LIMIT(b+y); | |
1974 | *rgb++ = LIMIT(r+y1); | |
1975 | *rgb++ = LIMIT(g+y1); | |
1976 | *rgb = LIMIT(b+y1); | |
1977 | } | |
1978 | return 6; | |
1979 | case VIDEO_PALETTE_RGB32: | |
1980 | if (mmap_kludge) { | |
1981 | *rgb++ = LIMIT(b+y); | |
1982 | *rgb++ = LIMIT(g+y); | |
1983 | *rgb++ = LIMIT(r+y); | |
1984 | rgb++; | |
1985 | *rgb++ = LIMIT(b+y1); | |
1986 | *rgb++ = LIMIT(g+y1); | |
1987 | *rgb = LIMIT(r+y1); | |
1988 | } else { | |
1989 | *rgb++ = LIMIT(r+y); | |
1990 | *rgb++ = LIMIT(g+y); | |
1991 | *rgb++ = LIMIT(b+y); | |
1992 | rgb++; | |
1993 | *rgb++ = LIMIT(r+y1); | |
1994 | *rgb++ = LIMIT(g+y1); | |
1995 | *rgb = LIMIT(b+y1); | |
1996 | } | |
1997 | return 8; | |
1998 | case VIDEO_PALETTE_GREY: | |
1999 | *rgb++ = y; | |
2000 | *rgb = y1; | |
2001 | return 2; | |
2002 | case VIDEO_PALETTE_YUV422: | |
2003 | case VIDEO_PALETTE_YUYV: | |
2004 | *rgb++ = y; | |
2005 | *rgb++ = u; | |
2006 | *rgb++ = y1; | |
2007 | *rgb = v; | |
2008 | return 4; | |
2009 | case VIDEO_PALETTE_UYVY: | |
2010 | *rgb++ = u; | |
2011 | *rgb++ = y; | |
2012 | *rgb++ = v; | |
2013 | *rgb = y1; | |
2014 | return 4; | |
2015 | default: | |
2016 | DBG("Empty: %d\n", out_fmt); | |
2017 | return 0; | |
2018 | } | |
2019 | } | |
2020 | ||
2021 | static int skipcount(int count, int fmt) | |
2022 | { | |
2023 | switch(fmt) { | |
2024 | case VIDEO_PALETTE_GREY: | |
2025 | return count; | |
2026 | case VIDEO_PALETTE_RGB555: | |
2027 | case VIDEO_PALETTE_RGB565: | |
2028 | case VIDEO_PALETTE_YUV422: | |
2029 | case VIDEO_PALETTE_YUYV: | |
2030 | case VIDEO_PALETTE_UYVY: | |
2031 | return 2*count; | |
2032 | case VIDEO_PALETTE_RGB24: | |
2033 | return 3*count; | |
2034 | case VIDEO_PALETTE_RGB32: | |
2035 | return 4*count; | |
2036 | default: | |
2037 | return 0; | |
2038 | } | |
2039 | } | |
2040 | ||
2041 | static int parse_picture(struct cam_data *cam, int size) | |
2042 | { | |
2043 | u8 *obuf, *ibuf, *end_obuf; | |
2044 | int ll, in_uyvy, compressed, decimation, even_line, origsize, out_fmt; | |
2045 | int rows, cols, linesize, subsample_422; | |
2046 | ||
2047 | /* make sure params don't change while we are decoding */ | |
3593cab5 | 2048 | mutex_lock(&cam->param_lock); |
1da177e4 LT |
2049 | |
2050 | obuf = cam->decompressed_frame.data; | |
2051 | end_obuf = obuf+CPIA_MAX_FRAME_SIZE; | |
2052 | ibuf = cam->raw_image; | |
2053 | origsize = size; | |
2054 | out_fmt = cam->vp.palette; | |
2055 | ||
2056 | if ((ibuf[0] != MAGIC_0) || (ibuf[1] != MAGIC_1)) { | |
2057 | LOG("header not found\n"); | |
3593cab5 | 2058 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
2059 | return -1; |
2060 | } | |
2061 | ||
2062 | if ((ibuf[16] != VIDEOSIZE_QCIF) && (ibuf[16] != VIDEOSIZE_CIF)) { | |
2063 | LOG("wrong video size\n"); | |
3593cab5 | 2064 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
2065 | return -1; |
2066 | } | |
d56410e0 | 2067 | |
1da177e4 LT |
2068 | if (ibuf[17] != SUBSAMPLE_420 && ibuf[17] != SUBSAMPLE_422) { |
2069 | LOG("illegal subtype %d\n",ibuf[17]); | |
3593cab5 | 2070 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
2071 | return -1; |
2072 | } | |
2073 | subsample_422 = ibuf[17] == SUBSAMPLE_422; | |
d56410e0 | 2074 | |
1da177e4 LT |
2075 | if (ibuf[18] != YUVORDER_YUYV && ibuf[18] != YUVORDER_UYVY) { |
2076 | LOG("illegal yuvorder %d\n",ibuf[18]); | |
3593cab5 | 2077 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
2078 | return -1; |
2079 | } | |
2080 | in_uyvy = ibuf[18] == YUVORDER_UYVY; | |
d56410e0 | 2081 | |
1da177e4 LT |
2082 | if ((ibuf[24] != cam->params.roi.colStart) || |
2083 | (ibuf[25] != cam->params.roi.colEnd) || | |
2084 | (ibuf[26] != cam->params.roi.rowStart) || | |
2085 | (ibuf[27] != cam->params.roi.rowEnd)) { | |
2086 | LOG("ROI mismatch\n"); | |
3593cab5 | 2087 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
2088 | return -1; |
2089 | } | |
2090 | cols = 8*(ibuf[25] - ibuf[24]); | |
2091 | rows = 4*(ibuf[27] - ibuf[26]); | |
2092 | ||
d56410e0 | 2093 | |
1da177e4 LT |
2094 | if ((ibuf[28] != NOT_COMPRESSED) && (ibuf[28] != COMPRESSED)) { |
2095 | LOG("illegal compression %d\n",ibuf[28]); | |
3593cab5 | 2096 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
2097 | return -1; |
2098 | } | |
2099 | compressed = (ibuf[28] == COMPRESSED); | |
d56410e0 | 2100 | |
1da177e4 LT |
2101 | if (ibuf[29] != NO_DECIMATION && ibuf[29] != DECIMATION_ENAB) { |
2102 | LOG("illegal decimation %d\n",ibuf[29]); | |
3593cab5 | 2103 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
2104 | return -1; |
2105 | } | |
d56410e0 | 2106 | decimation = (ibuf[29] == DECIMATION_ENAB); |
1da177e4 LT |
2107 | |
2108 | cam->params.yuvThreshold.yThreshold = ibuf[30]; | |
2109 | cam->params.yuvThreshold.uvThreshold = ibuf[31]; | |
2110 | cam->params.status.systemState = ibuf[32]; | |
2111 | cam->params.status.grabState = ibuf[33]; | |
2112 | cam->params.status.streamState = ibuf[34]; | |
2113 | cam->params.status.fatalError = ibuf[35]; | |
2114 | cam->params.status.cmdError = ibuf[36]; | |
2115 | cam->params.status.debugFlags = ibuf[37]; | |
2116 | cam->params.status.vpStatus = ibuf[38]; | |
2117 | cam->params.status.errorCode = ibuf[39]; | |
2118 | cam->fps = ibuf[41]; | |
3593cab5 | 2119 | mutex_unlock(&cam->param_lock); |
d56410e0 | 2120 | |
1da177e4 LT |
2121 | linesize = skipcount(cols, out_fmt); |
2122 | ibuf += FRAME_HEADER_SIZE; | |
2123 | size -= FRAME_HEADER_SIZE; | |
2124 | ll = ibuf[0] | (ibuf[1] << 8); | |
2125 | ibuf += 2; | |
2126 | even_line = 1; | |
2127 | ||
2128 | while (size > 0) { | |
2129 | size -= (ll+2); | |
2130 | if (size < 0) { | |
2131 | LOG("Insufficient data in buffer\n"); | |
2132 | return -1; | |
2133 | } | |
2134 | ||
2135 | while (ll > 1) { | |
2136 | if (!compressed || (compressed && !(*ibuf & 1))) { | |
2137 | if(subsample_422 || even_line) { | |
2138 | obuf += yuvconvert(ibuf, obuf, out_fmt, | |
d56410e0 | 2139 | in_uyvy, cam->mmap_kludge); |
1da177e4 LT |
2140 | ibuf += 4; |
2141 | ll -= 4; | |
2142 | } else { | |
2143 | /* SUBSAMPLE_420 on an odd line */ | |
2144 | obuf += convert420(ibuf, obuf, | |
d56410e0 MCC |
2145 | out_fmt, linesize, |
2146 | cam->mmap_kludge); | |
1da177e4 LT |
2147 | ibuf += 2; |
2148 | ll -= 2; | |
2149 | } | |
2150 | } else { | |
2151 | /*skip compressed interval from previous frame*/ | |
2152 | obuf += skipcount(*ibuf >> 1, out_fmt); | |
2153 | if (obuf > end_obuf) { | |
2154 | LOG("Insufficient buffer size\n"); | |
2155 | return -1; | |
2156 | } | |
2157 | ++ibuf; | |
2158 | ll--; | |
2159 | } | |
2160 | } | |
2161 | if (ll == 1) { | |
2162 | if (*ibuf != EOL) { | |
2163 | DBG("EOL not found giving up after %d/%d" | |
2164 | " bytes\n", origsize-size, origsize); | |
2165 | return -1; | |
2166 | } | |
2167 | ||
2168 | ++ibuf; /* skip over EOL */ | |
2169 | ||
2170 | if ((size > 3) && (ibuf[0] == EOI) && (ibuf[1] == EOI) && | |
2171 | (ibuf[2] == EOI) && (ibuf[3] == EOI)) { | |
d56410e0 | 2172 | size -= 4; |
1da177e4 LT |
2173 | break; |
2174 | } | |
2175 | ||
2176 | if(decimation) { | |
2177 | /* skip the odd lines for now */ | |
2178 | obuf += linesize; | |
2179 | } | |
2180 | ||
2181 | if (size > 1) { | |
2182 | ll = ibuf[0] | (ibuf[1] << 8); | |
2183 | ibuf += 2; /* skip over line length */ | |
2184 | } | |
2185 | if(!decimation) | |
2186 | even_line = !even_line; | |
2187 | } else { | |
2188 | LOG("line length was not 1 but %d after %d/%d bytes\n", | |
2189 | ll, origsize-size, origsize); | |
2190 | return -1; | |
2191 | } | |
2192 | } | |
d56410e0 | 2193 | |
1da177e4 LT |
2194 | if(decimation) { |
2195 | /* interpolate odd rows */ | |
2196 | int i, j; | |
2197 | u8 *prev, *next; | |
2198 | prev = cam->decompressed_frame.data; | |
2199 | obuf = prev+linesize; | |
2200 | next = obuf+linesize; | |
2201 | for(i=1; i<rows-1; i+=2) { | |
2202 | for(j=0; j<linesize; ++j) { | |
2203 | *obuf++ = ((int)*prev++ + *next++) / 2; | |
2204 | } | |
2205 | prev += linesize; | |
2206 | obuf += linesize; | |
2207 | next += linesize; | |
2208 | } | |
2209 | /* last row is odd, just copy previous row */ | |
2210 | memcpy(obuf, prev, linesize); | |
2211 | } | |
2212 | ||
2213 | cam->decompressed_frame.count = obuf-cam->decompressed_frame.data; | |
2214 | ||
2215 | return cam->decompressed_frame.count; | |
2216 | } | |
2217 | ||
2218 | /* InitStreamCap wrapper to select correct start line */ | |
2219 | static inline int init_stream_cap(struct cam_data *cam) | |
2220 | { | |
2221 | return do_command(cam, CPIA_COMMAND_InitStreamCap, | |
d56410e0 | 2222 | 0, cam->params.streamStartLine, 0, 0); |
1da177e4 LT |
2223 | } |
2224 | ||
2225 | ||
2226 | /* find_over_exposure | |
2227 | * Finds a suitable value of OverExposure for use with SetFlickerCtrl | |
2228 | * Some calculation is required because this value changes with the brightness | |
2229 | * set with SetColourParameters | |
2230 | * | |
2231 | * Parameters: Brightness - last brightness value set with SetColourParameters | |
2232 | * | |
2233 | * Returns: OverExposure value to use with SetFlickerCtrl | |
2234 | */ | |
2235 | #define FLICKER_MAX_EXPOSURE 250 | |
2236 | #define FLICKER_ALLOWABLE_OVER_EXPOSURE 146 | |
2237 | #define FLICKER_BRIGHTNESS_CONSTANT 59 | |
2238 | static int find_over_exposure(int brightness) | |
2239 | { | |
2240 | int MaxAllowableOverExposure, OverExposure; | |
2241 | ||
2242 | MaxAllowableOverExposure = FLICKER_MAX_EXPOSURE - brightness - | |
d56410e0 | 2243 | FLICKER_BRIGHTNESS_CONSTANT; |
1da177e4 LT |
2244 | |
2245 | if (MaxAllowableOverExposure < FLICKER_ALLOWABLE_OVER_EXPOSURE) { | |
2246 | OverExposure = MaxAllowableOverExposure; | |
2247 | } else { | |
2248 | OverExposure = FLICKER_ALLOWABLE_OVER_EXPOSURE; | |
2249 | } | |
2250 | ||
2251 | return OverExposure; | |
2252 | } | |
2253 | #undef FLICKER_MAX_EXPOSURE | |
2254 | #undef FLICKER_ALLOWABLE_OVER_EXPOSURE | |
2255 | #undef FLICKER_BRIGHTNESS_CONSTANT | |
2256 | ||
2257 | /* update various camera modes and settings */ | |
2258 | static void dispatch_commands(struct cam_data *cam) | |
2259 | { | |
3593cab5 | 2260 | mutex_lock(&cam->param_lock); |
1da177e4 | 2261 | if (cam->cmd_queue==COMMAND_NONE) { |
3593cab5 | 2262 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
2263 | return; |
2264 | } | |
2265 | DEB_BYTE(cam->cmd_queue); | |
2266 | DEB_BYTE(cam->cmd_queue>>8); | |
2267 | if (cam->cmd_queue & COMMAND_SETFORMAT) { | |
2268 | do_command(cam, CPIA_COMMAND_SetFormat, | |
d56410e0 MCC |
2269 | cam->params.format.videoSize, |
2270 | cam->params.format.subSample, | |
2271 | cam->params.format.yuvOrder, 0); | |
1da177e4 | 2272 | do_command(cam, CPIA_COMMAND_SetROI, |
d56410e0 MCC |
2273 | cam->params.roi.colStart, cam->params.roi.colEnd, |
2274 | cam->params.roi.rowStart, cam->params.roi.rowEnd); | |
1da177e4 LT |
2275 | cam->first_frame = 1; |
2276 | } | |
2277 | ||
2278 | if (cam->cmd_queue & COMMAND_SETCOLOURPARAMS) | |
2279 | do_command(cam, CPIA_COMMAND_SetColourParams, | |
d56410e0 MCC |
2280 | cam->params.colourParams.brightness, |
2281 | cam->params.colourParams.contrast, | |
2282 | cam->params.colourParams.saturation, 0); | |
1da177e4 LT |
2283 | |
2284 | if (cam->cmd_queue & COMMAND_SETAPCOR) | |
2285 | do_command(cam, CPIA_COMMAND_SetApcor, | |
d56410e0 MCC |
2286 | cam->params.apcor.gain1, |
2287 | cam->params.apcor.gain2, | |
2288 | cam->params.apcor.gain4, | |
2289 | cam->params.apcor.gain8); | |
1da177e4 LT |
2290 | |
2291 | if (cam->cmd_queue & COMMAND_SETVLOFFSET) | |
2292 | do_command(cam, CPIA_COMMAND_SetVLOffset, | |
d56410e0 MCC |
2293 | cam->params.vlOffset.gain1, |
2294 | cam->params.vlOffset.gain2, | |
2295 | cam->params.vlOffset.gain4, | |
2296 | cam->params.vlOffset.gain8); | |
1da177e4 LT |
2297 | |
2298 | if (cam->cmd_queue & COMMAND_SETEXPOSURE) { | |
2299 | do_command_extended(cam, CPIA_COMMAND_SetExposure, | |
d56410e0 MCC |
2300 | cam->params.exposure.gainMode, |
2301 | 1, | |
2302 | cam->params.exposure.compMode, | |
2303 | cam->params.exposure.centreWeight, | |
2304 | cam->params.exposure.gain, | |
2305 | cam->params.exposure.fineExp, | |
2306 | cam->params.exposure.coarseExpLo, | |
2307 | cam->params.exposure.coarseExpHi, | |
2308 | cam->params.exposure.redComp, | |
2309 | cam->params.exposure.green1Comp, | |
2310 | cam->params.exposure.green2Comp, | |
2311 | cam->params.exposure.blueComp); | |
1da177e4 LT |
2312 | if(cam->params.exposure.expMode != 1) { |
2313 | do_command_extended(cam, CPIA_COMMAND_SetExposure, | |
d56410e0 MCC |
2314 | 0, |
2315 | cam->params.exposure.expMode, | |
2316 | 0, 0, | |
2317 | cam->params.exposure.gain, | |
2318 | cam->params.exposure.fineExp, | |
2319 | cam->params.exposure.coarseExpLo, | |
2320 | cam->params.exposure.coarseExpHi, | |
2321 | 0, 0, 0, 0); | |
1da177e4 LT |
2322 | } |
2323 | } | |
d56410e0 | 2324 | |
1da177e4 LT |
2325 | if (cam->cmd_queue & COMMAND_SETCOLOURBALANCE) { |
2326 | if (cam->params.colourBalance.balanceMode == 1) { | |
2327 | do_command(cam, CPIA_COMMAND_SetColourBalance, | |
2328 | 1, | |
2329 | cam->params.colourBalance.redGain, | |
2330 | cam->params.colourBalance.greenGain, | |
2331 | cam->params.colourBalance.blueGain); | |
2332 | do_command(cam, CPIA_COMMAND_SetColourBalance, | |
2333 | 3, 0, 0, 0); | |
2334 | } | |
2335 | if (cam->params.colourBalance.balanceMode == 2) { | |
2336 | do_command(cam, CPIA_COMMAND_SetColourBalance, | |
2337 | 2, 0, 0, 0); | |
2338 | } | |
2339 | if (cam->params.colourBalance.balanceMode == 3) { | |
2340 | do_command(cam, CPIA_COMMAND_SetColourBalance, | |
2341 | 3, 0, 0, 0); | |
2342 | } | |
2343 | } | |
2344 | ||
2345 | if (cam->cmd_queue & COMMAND_SETCOMPRESSIONTARGET) | |
2346 | do_command(cam, CPIA_COMMAND_SetCompressionTarget, | |
d56410e0 MCC |
2347 | cam->params.compressionTarget.frTargeting, |
2348 | cam->params.compressionTarget.targetFR, | |
2349 | cam->params.compressionTarget.targetQ, 0); | |
1da177e4 LT |
2350 | |
2351 | if (cam->cmd_queue & COMMAND_SETYUVTHRESH) | |
2352 | do_command(cam, CPIA_COMMAND_SetYUVThresh, | |
d56410e0 MCC |
2353 | cam->params.yuvThreshold.yThreshold, |
2354 | cam->params.yuvThreshold.uvThreshold, 0, 0); | |
1da177e4 LT |
2355 | |
2356 | if (cam->cmd_queue & COMMAND_SETCOMPRESSIONPARAMS) | |
2357 | do_command_extended(cam, CPIA_COMMAND_SetCompressionParams, | |
d56410e0 MCC |
2358 | 0, 0, 0, 0, |
2359 | cam->params.compressionParams.hysteresis, | |
2360 | cam->params.compressionParams.threshMax, | |
2361 | cam->params.compressionParams.smallStep, | |
2362 | cam->params.compressionParams.largeStep, | |
2363 | cam->params.compressionParams.decimationHysteresis, | |
2364 | cam->params.compressionParams.frDiffStepThresh, | |
2365 | cam->params.compressionParams.qDiffStepThresh, | |
2366 | cam->params.compressionParams.decimationThreshMod); | |
1da177e4 LT |
2367 | |
2368 | if (cam->cmd_queue & COMMAND_SETCOMPRESSION) | |
2369 | do_command(cam, CPIA_COMMAND_SetCompression, | |
d56410e0 | 2370 | cam->params.compression.mode, |
1da177e4 LT |
2371 | cam->params.compression.decimation, 0, 0); |
2372 | ||
2373 | if (cam->cmd_queue & COMMAND_SETSENSORFPS) | |
2374 | do_command(cam, CPIA_COMMAND_SetSensorFPS, | |
d56410e0 MCC |
2375 | cam->params.sensorFps.divisor, |
2376 | cam->params.sensorFps.baserate, 0, 0); | |
1da177e4 LT |
2377 | |
2378 | if (cam->cmd_queue & COMMAND_SETFLICKERCTRL) | |
2379 | do_command(cam, CPIA_COMMAND_SetFlickerCtrl, | |
d56410e0 MCC |
2380 | cam->params.flickerControl.flickerMode, |
2381 | cam->params.flickerControl.coarseJump, | |
2382 | abs(cam->params.flickerControl.allowableOverExposure), | |
2383 | 0); | |
1da177e4 LT |
2384 | |
2385 | if (cam->cmd_queue & COMMAND_SETECPTIMING) | |
2386 | do_command(cam, CPIA_COMMAND_SetECPTiming, | |
d56410e0 | 2387 | cam->params.ecpTiming, 0, 0, 0); |
1da177e4 LT |
2388 | |
2389 | if (cam->cmd_queue & COMMAND_PAUSE) | |
2390 | do_command(cam, CPIA_COMMAND_EndStreamCap, 0, 0, 0, 0); | |
2391 | ||
2392 | if (cam->cmd_queue & COMMAND_RESUME) | |
2393 | init_stream_cap(cam); | |
2394 | ||
2395 | if (cam->cmd_queue & COMMAND_SETLIGHTS && cam->params.qx3.qx3_detected) | |
2396 | { | |
2397 | int p1 = (cam->params.qx3.bottomlight == 0) << 1; | |
d56410e0 MCC |
2398 | int p2 = (cam->params.qx3.toplight == 0) << 3; |
2399 | do_command(cam, CPIA_COMMAND_WriteVCReg, 0x90, 0x8F, 0x50, 0); | |
2400 | do_command(cam, CPIA_COMMAND_WriteMCPort, 2, 0, (p1|p2|0xE0), 0); | |
1da177e4 LT |
2401 | } |
2402 | ||
2403 | cam->cmd_queue = COMMAND_NONE; | |
3593cab5 | 2404 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
2405 | return; |
2406 | } | |
2407 | ||
2408 | ||
2409 | ||
2410 | static void set_flicker(struct cam_params *params, volatile u32 *command_flags, | |
d56410e0 | 2411 | int on) |
1da177e4 LT |
2412 | { |
2413 | /* Everything in here is from the Windows driver */ | |
2414 | #define FIRMWARE_VERSION(x,y) (params->version.firmwareVersion == (x) && \ | |
d56410e0 | 2415 | params->version.firmwareRevision == (y)) |
1da177e4 LT |
2416 | /* define for compgain calculation */ |
2417 | #if 0 | |
2418 | #define COMPGAIN(base, curexp, newexp) \ | |
2419 | (u8) ((((float) base - 128.0) * ((float) curexp / (float) newexp)) + 128.5) | |
2420 | #define EXP_FROM_COMP(basecomp, curcomp, curexp) \ | |
2421 | (u16)((float)curexp * (float)(u8)(curcomp + 128) / (float)(u8)(basecomp - 128)) | |
2422 | #else | |
2423 | /* equivalent functions without floating point math */ | |
2424 | #define COMPGAIN(base, curexp, newexp) \ | |
2425 | (u8)(128 + (((u32)(2*(base-128)*curexp + newexp)) / (2* newexp)) ) | |
2426 | #define EXP_FROM_COMP(basecomp, curcomp, curexp) \ | |
2427 | (u16)(((u32)(curexp * (u8)(curcomp + 128)) / (u8)(basecomp - 128))) | |
2428 | #endif | |
2429 | ||
d56410e0 | 2430 | |
1da177e4 LT |
2431 | int currentexp = params->exposure.coarseExpLo + |
2432 | params->exposure.coarseExpHi*256; | |
2433 | int startexp; | |
2434 | if (on) { | |
2435 | int cj = params->flickerControl.coarseJump; | |
2436 | params->flickerControl.flickerMode = 1; | |
2437 | params->flickerControl.disabled = 0; | |
2438 | if(params->exposure.expMode != 2) | |
2439 | *command_flags |= COMMAND_SETEXPOSURE; | |
2440 | params->exposure.expMode = 2; | |
2441 | currentexp = currentexp << params->exposure.gain; | |
2442 | params->exposure.gain = 0; | |
2443 | /* round down current exposure to nearest value */ | |
2444 | startexp = (currentexp + ROUND_UP_EXP_FOR_FLICKER) / cj; | |
2445 | if(startexp < 1) | |
2446 | startexp = 1; | |
2447 | startexp = (startexp * cj) - 1; | |
2448 | if(FIRMWARE_VERSION(1,2)) | |
2449 | while(startexp > MAX_EXP_102) | |
2450 | startexp -= cj; | |
2451 | else | |
2452 | while(startexp > MAX_EXP) | |
2453 | startexp -= cj; | |
2454 | params->exposure.coarseExpLo = startexp & 0xff; | |
2455 | params->exposure.coarseExpHi = startexp >> 8; | |
2456 | if (currentexp > startexp) { | |
2457 | if (currentexp > (2 * startexp)) | |
2458 | currentexp = 2 * startexp; | |
2459 | params->exposure.redComp = COMPGAIN (COMP_RED, currentexp, startexp); | |
2460 | params->exposure.green1Comp = COMPGAIN (COMP_GREEN1, currentexp, startexp); | |
2461 | params->exposure.green2Comp = COMPGAIN (COMP_GREEN2, currentexp, startexp); | |
2462 | params->exposure.blueComp = COMPGAIN (COMP_BLUE, currentexp, startexp); | |
2463 | } else { | |
2464 | params->exposure.redComp = COMP_RED; | |
2465 | params->exposure.green1Comp = COMP_GREEN1; | |
2466 | params->exposure.green2Comp = COMP_GREEN2; | |
2467 | params->exposure.blueComp = COMP_BLUE; | |
2468 | } | |
2469 | if(FIRMWARE_VERSION(1,2)) | |
2470 | params->exposure.compMode = 0; | |
d56410e0 | 2471 | else |
1da177e4 LT |
2472 | params->exposure.compMode = 1; |
2473 | ||
2474 | params->apcor.gain1 = 0x18; | |
2475 | params->apcor.gain2 = 0x18; | |
2476 | params->apcor.gain4 = 0x16; | |
2477 | params->apcor.gain8 = 0x14; | |
2478 | *command_flags |= COMMAND_SETAPCOR; | |
2479 | } else { | |
2480 | params->flickerControl.flickerMode = 0; | |
2481 | params->flickerControl.disabled = 1; | |
2482 | /* Coarse = average of equivalent coarse for each comp channel */ | |
2483 | startexp = EXP_FROM_COMP(COMP_RED, params->exposure.redComp, currentexp); | |
2484 | startexp += EXP_FROM_COMP(COMP_GREEN1, params->exposure.green1Comp, currentexp); | |
2485 | startexp += EXP_FROM_COMP(COMP_GREEN2, params->exposure.green2Comp, currentexp); | |
2486 | startexp += EXP_FROM_COMP(COMP_BLUE, params->exposure.blueComp, currentexp); | |
2487 | startexp = startexp >> 2; | |
2488 | while(startexp > MAX_EXP && | |
2489 | params->exposure.gain < params->exposure.gainMode-1) { | |
2490 | startexp = startexp >> 1; | |
2491 | ++params->exposure.gain; | |
2492 | } | |
2493 | if(FIRMWARE_VERSION(1,2) && startexp > MAX_EXP_102) | |
2494 | startexp = MAX_EXP_102; | |
2495 | if(startexp > MAX_EXP) | |
2496 | startexp = MAX_EXP; | |
2497 | params->exposure.coarseExpLo = startexp&0xff; | |
2498 | params->exposure.coarseExpHi = startexp >> 8; | |
2499 | params->exposure.redComp = COMP_RED; | |
2500 | params->exposure.green1Comp = COMP_GREEN1; | |
2501 | params->exposure.green2Comp = COMP_GREEN2; | |
2502 | params->exposure.blueComp = COMP_BLUE; | |
2503 | params->exposure.compMode = 1; | |
2504 | *command_flags |= COMMAND_SETEXPOSURE; | |
2505 | params->apcor.gain1 = 0x18; | |
2506 | params->apcor.gain2 = 0x16; | |
2507 | params->apcor.gain4 = 0x24; | |
2508 | params->apcor.gain8 = 0x34; | |
2509 | *command_flags |= COMMAND_SETAPCOR; | |
2510 | } | |
2511 | params->vlOffset.gain1 = 20; | |
2512 | params->vlOffset.gain2 = 24; | |
2513 | params->vlOffset.gain4 = 26; | |
2514 | params->vlOffset.gain8 = 26; | |
2515 | *command_flags |= COMMAND_SETVLOFFSET; | |
2516 | #undef FIRMWARE_VERSION | |
2517 | #undef EXP_FROM_COMP | |
2518 | #undef COMPGAIN | |
2519 | } | |
2520 | ||
2521 | #define FIRMWARE_VERSION(x,y) (cam->params.version.firmwareVersion == (x) && \ | |
d56410e0 | 2522 | cam->params.version.firmwareRevision == (y)) |
1da177e4 LT |
2523 | /* monitor the exposure and adjust the sensor frame rate if needed */ |
2524 | static void monitor_exposure(struct cam_data *cam) | |
2525 | { | |
2526 | u8 exp_acc, bcomp, gain, coarseL, cmd[8], data[8]; | |
2527 | int retval, light_exp, dark_exp, very_dark_exp; | |
2528 | int old_exposure, new_exposure, framerate; | |
d56410e0 | 2529 | |
1da177e4 LT |
2530 | /* get necessary stats and register settings from camera */ |
2531 | /* do_command can't handle this, so do it ourselves */ | |
2532 | cmd[0] = CPIA_COMMAND_ReadVPRegs>>8; | |
2533 | cmd[1] = CPIA_COMMAND_ReadVPRegs&0xff; | |
2534 | cmd[2] = 30; | |
2535 | cmd[3] = 4; | |
2536 | cmd[4] = 9; | |
2537 | cmd[5] = 8; | |
2538 | cmd[6] = 8; | |
2539 | cmd[7] = 0; | |
2540 | retval = cam->ops->transferCmd(cam->lowlevel_data, cmd, data); | |
2541 | if (retval) { | |
2542 | LOG("ReadVPRegs(30,4,9,8) - failed, retval=%d\n", | |
2543 | retval); | |
2544 | return; | |
2545 | } | |
2546 | exp_acc = data[0]; | |
2547 | bcomp = data[1]; | |
2548 | gain = data[2]; | |
2549 | coarseL = data[3]; | |
2550 | ||
3593cab5 | 2551 | mutex_lock(&cam->param_lock); |
1da177e4 | 2552 | light_exp = cam->params.colourParams.brightness + |
d56410e0 | 2553 | TC - 50 + EXP_ACC_LIGHT; |
1da177e4 LT |
2554 | if(light_exp > 255) |
2555 | light_exp = 255; | |
2556 | dark_exp = cam->params.colourParams.brightness + | |
d56410e0 | 2557 | TC - 50 - EXP_ACC_DARK; |
1da177e4 LT |
2558 | if(dark_exp < 0) |
2559 | dark_exp = 0; | |
2560 | very_dark_exp = dark_exp/2; | |
d56410e0 | 2561 | |
1da177e4 | 2562 | old_exposure = cam->params.exposure.coarseExpHi * 256 + |
d56410e0 | 2563 | cam->params.exposure.coarseExpLo; |
1da177e4 LT |
2564 | |
2565 | if(!cam->params.flickerControl.disabled) { | |
2566 | /* Flicker control on */ | |
2567 | int max_comp = FIRMWARE_VERSION(1,2) ? MAX_COMP : HIGH_COMP_102; | |
2568 | bcomp += 128; /* decode */ | |
2569 | if(bcomp >= max_comp && exp_acc < dark_exp) { | |
2570 | /* dark */ | |
2571 | if(exp_acc < very_dark_exp) { | |
2572 | /* very dark */ | |
2573 | if(cam->exposure_status == EXPOSURE_VERY_DARK) | |
2574 | ++cam->exposure_count; | |
2575 | else { | |
2576 | cam->exposure_status = EXPOSURE_VERY_DARK; | |
2577 | cam->exposure_count = 1; | |
2578 | } | |
2579 | } else { | |
2580 | /* just dark */ | |
2581 | if(cam->exposure_status == EXPOSURE_DARK) | |
2582 | ++cam->exposure_count; | |
2583 | else { | |
2584 | cam->exposure_status = EXPOSURE_DARK; | |
2585 | cam->exposure_count = 1; | |
2586 | } | |
2587 | } | |
2588 | } else if(old_exposure <= LOW_EXP || exp_acc > light_exp) { | |
2589 | /* light */ | |
2590 | if(old_exposure <= VERY_LOW_EXP) { | |
2591 | /* very light */ | |
2592 | if(cam->exposure_status == EXPOSURE_VERY_LIGHT) | |
2593 | ++cam->exposure_count; | |
2594 | else { | |
2595 | cam->exposure_status = EXPOSURE_VERY_LIGHT; | |
2596 | cam->exposure_count = 1; | |
2597 | } | |
2598 | } else { | |
2599 | /* just light */ | |
2600 | if(cam->exposure_status == EXPOSURE_LIGHT) | |
2601 | ++cam->exposure_count; | |
2602 | else { | |
2603 | cam->exposure_status = EXPOSURE_LIGHT; | |
2604 | cam->exposure_count = 1; | |
2605 | } | |
2606 | } | |
2607 | } else { | |
2608 | /* not dark or light */ | |
2609 | cam->exposure_status = EXPOSURE_NORMAL; | |
2610 | } | |
2611 | } else { | |
2612 | /* Flicker control off */ | |
2613 | if(old_exposure >= MAX_EXP && exp_acc < dark_exp) { | |
2614 | /* dark */ | |
2615 | if(exp_acc < very_dark_exp) { | |
2616 | /* very dark */ | |
2617 | if(cam->exposure_status == EXPOSURE_VERY_DARK) | |
2618 | ++cam->exposure_count; | |
2619 | else { | |
2620 | cam->exposure_status = EXPOSURE_VERY_DARK; | |
2621 | cam->exposure_count = 1; | |
2622 | } | |
2623 | } else { | |
2624 | /* just dark */ | |
2625 | if(cam->exposure_status == EXPOSURE_DARK) | |
2626 | ++cam->exposure_count; | |
2627 | else { | |
2628 | cam->exposure_status = EXPOSURE_DARK; | |
2629 | cam->exposure_count = 1; | |
2630 | } | |
2631 | } | |
2632 | } else if(old_exposure <= LOW_EXP || exp_acc > light_exp) { | |
2633 | /* light */ | |
2634 | if(old_exposure <= VERY_LOW_EXP) { | |
2635 | /* very light */ | |
2636 | if(cam->exposure_status == EXPOSURE_VERY_LIGHT) | |
2637 | ++cam->exposure_count; | |
2638 | else { | |
2639 | cam->exposure_status = EXPOSURE_VERY_LIGHT; | |
2640 | cam->exposure_count = 1; | |
2641 | } | |
2642 | } else { | |
2643 | /* just light */ | |
2644 | if(cam->exposure_status == EXPOSURE_LIGHT) | |
2645 | ++cam->exposure_count; | |
2646 | else { | |
2647 | cam->exposure_status = EXPOSURE_LIGHT; | |
2648 | cam->exposure_count = 1; | |
2649 | } | |
2650 | } | |
2651 | } else { | |
2652 | /* not dark or light */ | |
2653 | cam->exposure_status = EXPOSURE_NORMAL; | |
2654 | } | |
2655 | } | |
d56410e0 | 2656 | |
1da177e4 LT |
2657 | framerate = cam->fps; |
2658 | if(framerate > 30 || framerate < 1) | |
2659 | framerate = 1; | |
d56410e0 | 2660 | |
1da177e4 LT |
2661 | if(!cam->params.flickerControl.disabled) { |
2662 | /* Flicker control on */ | |
2663 | if((cam->exposure_status == EXPOSURE_VERY_DARK || | |
2664 | cam->exposure_status == EXPOSURE_DARK) && | |
2665 | cam->exposure_count >= DARK_TIME*framerate && | |
2666 | cam->params.sensorFps.divisor < 3) { | |
2667 | ||
2668 | /* dark for too long */ | |
2669 | ++cam->params.sensorFps.divisor; | |
2670 | cam->cmd_queue |= COMMAND_SETSENSORFPS; | |
2671 | ||
d56410e0 | 2672 | cam->params.flickerControl.coarseJump = |
1da177e4 | 2673 | flicker_jumps[cam->mainsFreq] |
d56410e0 MCC |
2674 | [cam->params.sensorFps.baserate] |
2675 | [cam->params.sensorFps.divisor]; | |
1da177e4 LT |
2676 | cam->cmd_queue |= COMMAND_SETFLICKERCTRL; |
2677 | ||
2678 | new_exposure = cam->params.flickerControl.coarseJump-1; | |
2679 | while(new_exposure < old_exposure/2) | |
2680 | new_exposure += cam->params.flickerControl.coarseJump; | |
2681 | cam->params.exposure.coarseExpLo = new_exposure & 0xff; | |
2682 | cam->params.exposure.coarseExpHi = new_exposure >> 8; | |
2683 | cam->cmd_queue |= COMMAND_SETEXPOSURE; | |
2684 | cam->exposure_status = EXPOSURE_NORMAL; | |
2685 | LOG("Automatically decreasing sensor_fps\n"); | |
2686 | ||
2687 | } else if((cam->exposure_status == EXPOSURE_VERY_LIGHT || | |
2688 | cam->exposure_status == EXPOSURE_LIGHT) && | |
2689 | cam->exposure_count >= LIGHT_TIME*framerate && | |
2690 | cam->params.sensorFps.divisor > 0) { | |
2691 | ||
2692 | /* light for too long */ | |
d56410e0 | 2693 | int max_exp = FIRMWARE_VERSION(1,2) ? MAX_EXP_102 : MAX_EXP ; |
1da177e4 LT |
2694 | |
2695 | --cam->params.sensorFps.divisor; | |
2696 | cam->cmd_queue |= COMMAND_SETSENSORFPS; | |
2697 | ||
d56410e0 | 2698 | cam->params.flickerControl.coarseJump = |
1da177e4 | 2699 | flicker_jumps[cam->mainsFreq] |
d56410e0 MCC |
2700 | [cam->params.sensorFps.baserate] |
2701 | [cam->params.sensorFps.divisor]; | |
1da177e4 LT |
2702 | cam->cmd_queue |= COMMAND_SETFLICKERCTRL; |
2703 | ||
2704 | new_exposure = cam->params.flickerControl.coarseJump-1; | |
2705 | while(new_exposure < 2*old_exposure && | |
2706 | new_exposure+ | |
2707 | cam->params.flickerControl.coarseJump < max_exp) | |
2708 | new_exposure += cam->params.flickerControl.coarseJump; | |
2709 | cam->params.exposure.coarseExpLo = new_exposure & 0xff; | |
2710 | cam->params.exposure.coarseExpHi = new_exposure >> 8; | |
2711 | cam->cmd_queue |= COMMAND_SETEXPOSURE; | |
2712 | cam->exposure_status = EXPOSURE_NORMAL; | |
2713 | LOG("Automatically increasing sensor_fps\n"); | |
2714 | } | |
2715 | } else { | |
2716 | /* Flicker control off */ | |
2717 | if((cam->exposure_status == EXPOSURE_VERY_DARK || | |
2718 | cam->exposure_status == EXPOSURE_DARK) && | |
2719 | cam->exposure_count >= DARK_TIME*framerate && | |
2720 | cam->params.sensorFps.divisor < 3) { | |
2721 | ||
2722 | /* dark for too long */ | |
2723 | ++cam->params.sensorFps.divisor; | |
2724 | cam->cmd_queue |= COMMAND_SETSENSORFPS; | |
2725 | ||
2726 | if(cam->params.exposure.gain > 0) { | |
2727 | --cam->params.exposure.gain; | |
2728 | cam->cmd_queue |= COMMAND_SETEXPOSURE; | |
2729 | } | |
2730 | cam->exposure_status = EXPOSURE_NORMAL; | |
2731 | LOG("Automatically decreasing sensor_fps\n"); | |
2732 | ||
2733 | } else if((cam->exposure_status == EXPOSURE_VERY_LIGHT || | |
2734 | cam->exposure_status == EXPOSURE_LIGHT) && | |
2735 | cam->exposure_count >= LIGHT_TIME*framerate && | |
2736 | cam->params.sensorFps.divisor > 0) { | |
2737 | ||
2738 | /* light for too long */ | |
2739 | --cam->params.sensorFps.divisor; | |
2740 | cam->cmd_queue |= COMMAND_SETSENSORFPS; | |
2741 | ||
2742 | if(cam->params.exposure.gain < | |
2743 | cam->params.exposure.gainMode-1) { | |
2744 | ++cam->params.exposure.gain; | |
2745 | cam->cmd_queue |= COMMAND_SETEXPOSURE; | |
2746 | } | |
2747 | cam->exposure_status = EXPOSURE_NORMAL; | |
2748 | LOG("Automatically increasing sensor_fps\n"); | |
2749 | } | |
2750 | } | |
3593cab5 | 2751 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
2752 | } |
2753 | ||
2754 | /*-----------------------------------------------------------------*/ | |
2755 | /* if flicker is switched off, this function switches it back on.It checks, | |
2756 | however, that conditions are suitable before restarting it. | |
2757 | This should only be called for firmware version 1.2. | |
2758 | ||
2759 | It also adjust the colour balance when an exposure step is detected - as | |
2760 | long as flicker is running | |
d56410e0 | 2761 | */ |
1da177e4 LT |
2762 | static void restart_flicker(struct cam_data *cam) |
2763 | { | |
2764 | int cam_exposure, old_exp; | |
2765 | if(!FIRMWARE_VERSION(1,2)) | |
2766 | return; | |
3593cab5 | 2767 | mutex_lock(&cam->param_lock); |
1da177e4 LT |
2768 | if(cam->params.flickerControl.flickerMode == 0 || |
2769 | cam->raw_image[39] == 0) { | |
3593cab5 | 2770 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
2771 | return; |
2772 | } | |
2773 | cam_exposure = cam->raw_image[39]*2; | |
2774 | old_exp = cam->params.exposure.coarseExpLo + | |
d56410e0 MCC |
2775 | cam->params.exposure.coarseExpHi*256; |
2776 | /* | |
2777 | see how far away camera exposure is from a valid | |
2778 | flicker exposure value | |
2779 | */ | |
2780 | cam_exposure %= cam->params.flickerControl.coarseJump; | |
1da177e4 | 2781 | if(!cam->params.flickerControl.disabled && |
d56410e0 | 2782 | cam_exposure <= cam->params.flickerControl.coarseJump - 3) { |
1da177e4 LT |
2783 | /* Flicker control auto-disabled */ |
2784 | cam->params.flickerControl.disabled = 1; | |
2785 | } | |
d56410e0 | 2786 | |
1da177e4 LT |
2787 | if(cam->params.flickerControl.disabled && |
2788 | cam->params.flickerControl.flickerMode && | |
2789 | old_exp > cam->params.flickerControl.coarseJump + | |
d56410e0 | 2790 | ROUND_UP_EXP_FOR_FLICKER) { |
1da177e4 LT |
2791 | /* exposure is now high enough to switch |
2792 | flicker control back on */ | |
2793 | set_flicker(&cam->params, &cam->cmd_queue, 1); | |
2794 | if((cam->cmd_queue & COMMAND_SETEXPOSURE) && | |
2795 | cam->params.exposure.expMode == 2) | |
2796 | cam->exposure_status = EXPOSURE_NORMAL; | |
2797 | ||
2798 | } | |
3593cab5 | 2799 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
2800 | } |
2801 | #undef FIRMWARE_VERSION | |
2802 | ||
2803 | static int clear_stall(struct cam_data *cam) | |
2804 | { | |
2805 | /* FIXME: Does this actually work? */ | |
2806 | LOG("Clearing stall\n"); | |
d56410e0 | 2807 | |
1da177e4 LT |
2808 | cam->ops->streamRead(cam->lowlevel_data, cam->raw_image, 0); |
2809 | do_command(cam, CPIA_COMMAND_GetCameraStatus,0,0,0,0); | |
2810 | return cam->params.status.streamState != STREAM_PAUSED; | |
2811 | } | |
2812 | ||
2813 | /* kernel thread function to read image from camera */ | |
2814 | static int fetch_frame(void *data) | |
2815 | { | |
2816 | int image_size, retry; | |
2817 | struct cam_data *cam = (struct cam_data *)data; | |
2818 | unsigned long oldjif, rate, diff; | |
2819 | ||
2820 | /* Allow up to two bad images in a row to be read and | |
2821 | * ignored before an error is reported */ | |
2822 | for (retry = 0; retry < 3; ++retry) { | |
2823 | if (retry) | |
2824 | DBG("retry=%d\n", retry); | |
2825 | ||
2826 | if (!cam->ops) | |
2827 | continue; | |
2828 | ||
2829 | /* load first frame always uncompressed */ | |
2830 | if (cam->first_frame && | |
2831 | cam->params.compression.mode != CPIA_COMPRESSION_NONE) { | |
2832 | do_command(cam, CPIA_COMMAND_SetCompression, | |
2833 | CPIA_COMPRESSION_NONE, | |
2834 | NO_DECIMATION, 0, 0); | |
2835 | /* Trial & error - Discarding a frame prevents the | |
2836 | first frame from having an error in the data. */ | |
2837 | do_command(cam, CPIA_COMMAND_DiscardFrame, 0, 0, 0, 0); | |
2838 | } | |
2839 | ||
2840 | /* init camera upload */ | |
2841 | if (do_command(cam, CPIA_COMMAND_GrabFrame, 0, | |
2842 | cam->params.streamStartLine, 0, 0)) | |
2843 | continue; | |
2844 | ||
2845 | if (cam->ops->wait_for_stream_ready) { | |
2846 | /* loop until image ready */ | |
2847 | int count = 0; | |
2848 | do_command(cam, CPIA_COMMAND_GetCameraStatus,0,0,0,0); | |
2849 | while (cam->params.status.streamState != STREAM_READY) { | |
2850 | if(++count > READY_TIMEOUT) | |
2851 | break; | |
2852 | if(cam->params.status.streamState == | |
2853 | STREAM_PAUSED) { | |
2854 | /* Bad news */ | |
2855 | if(!clear_stall(cam)) | |
2856 | return -EIO; | |
2857 | } | |
2858 | ||
2859 | cond_resched(); | |
2860 | ||
2861 | /* sleep for 10 ms, hopefully ;) */ | |
2862 | msleep_interruptible(10); | |
2863 | if (signal_pending(current)) | |
2864 | return -EINTR; | |
2865 | ||
2866 | do_command(cam, CPIA_COMMAND_GetCameraStatus, | |
d56410e0 | 2867 | 0, 0, 0, 0); |
1da177e4 LT |
2868 | } |
2869 | if(cam->params.status.streamState != STREAM_READY) { | |
2870 | continue; | |
2871 | } | |
2872 | } | |
2873 | ||
2874 | cond_resched(); | |
2875 | ||
2876 | /* grab image from camera */ | |
2877 | oldjif = jiffies; | |
2878 | image_size = cam->ops->streamRead(cam->lowlevel_data, | |
2879 | cam->raw_image, 0); | |
2880 | if (image_size <= 0) { | |
2881 | DBG("streamRead failed: %d\n", image_size); | |
2882 | continue; | |
2883 | } | |
2884 | ||
2885 | rate = image_size * HZ / 1024; | |
2886 | diff = jiffies-oldjif; | |
2887 | cam->transfer_rate = diff==0 ? rate : rate/diff; | |
2888 | /* diff==0 ? unlikely but possible */ | |
2889 | ||
2890 | /* Switch flicker control back on if it got turned off */ | |
2891 | restart_flicker(cam); | |
d56410e0 | 2892 | |
1da177e4 LT |
2893 | /* If AEC is enabled, monitor the exposure and |
2894 | adjust the sensor frame rate if needed */ | |
2895 | if(cam->params.exposure.expMode == 2) | |
2896 | monitor_exposure(cam); | |
d56410e0 | 2897 | |
1da177e4 LT |
2898 | /* camera idle now so dispatch queued commands */ |
2899 | dispatch_commands(cam); | |
2900 | ||
2901 | /* Update our knowledge of the camera state */ | |
d56410e0 MCC |
2902 | do_command(cam, CPIA_COMMAND_GetColourBalance, 0, 0, 0, 0); |
2903 | do_command(cam, CPIA_COMMAND_GetExposure, 0, 0, 0, 0); | |
1da177e4 LT |
2904 | do_command(cam, CPIA_COMMAND_ReadMCPorts, 0, 0, 0, 0); |
2905 | ||
2906 | /* decompress and convert image to by copying it from | |
2907 | * raw_image to decompressed_frame | |
2908 | */ | |
2909 | ||
2910 | cond_resched(); | |
2911 | ||
2912 | cam->image_size = parse_picture(cam, image_size); | |
2913 | if (cam->image_size <= 0) { | |
2914 | DBG("parse_picture failed %d\n", cam->image_size); | |
2915 | if(cam->params.compression.mode != | |
2916 | CPIA_COMPRESSION_NONE) { | |
2917 | /* Compression may not work right if we | |
2918 | had a bad frame, get the next one | |
2919 | uncompressed. */ | |
2920 | cam->first_frame = 1; | |
2921 | do_command(cam, CPIA_COMMAND_SetGrabMode, | |
d56410e0 | 2922 | CPIA_GRAB_SINGLE, 0, 0, 0); |
1da177e4 LT |
2923 | /* FIXME: Trial & error - need up to 70ms for |
2924 | the grab mode change to complete ? */ | |
2925 | msleep_interruptible(70); | |
2926 | if (signal_pending(current)) | |
2927 | return -EINTR; | |
2928 | } | |
2929 | } else | |
2930 | break; | |
2931 | } | |
2932 | ||
2933 | if (retry < 3) { | |
2934 | /* FIXME: this only works for double buffering */ | |
2935 | if (cam->frame[cam->curframe].state == FRAME_READY) { | |
2936 | memcpy(cam->frame[cam->curframe].data, | |
2937 | cam->decompressed_frame.data, | |
2938 | cam->decompressed_frame.count); | |
2939 | cam->frame[cam->curframe].state = FRAME_DONE; | |
2940 | } else | |
2941 | cam->decompressed_frame.state = FRAME_DONE; | |
2942 | ||
2943 | if (cam->first_frame) { | |
2944 | cam->first_frame = 0; | |
2945 | do_command(cam, CPIA_COMMAND_SetCompression, | |
d56410e0 | 2946 | cam->params.compression.mode, |
1da177e4 LT |
2947 | cam->params.compression.decimation, 0, 0); |
2948 | ||
2949 | /* Switch from single-grab to continuous grab */ | |
2950 | do_command(cam, CPIA_COMMAND_SetGrabMode, | |
d56410e0 | 2951 | CPIA_GRAB_CONTINUOUS, 0, 0, 0); |
1da177e4 LT |
2952 | } |
2953 | return 0; | |
2954 | } | |
2955 | return -EIO; | |
2956 | } | |
2957 | ||
2958 | static int capture_frame(struct cam_data *cam, struct video_mmap *vm) | |
2959 | { | |
2960 | if (!cam->frame_buf) { | |
2961 | /* we do lazy allocation */ | |
2962 | int err; | |
2963 | if ((err = allocate_frame_buf(cam))) | |
2964 | return err; | |
2965 | } | |
d56410e0 | 2966 | |
1da177e4 LT |
2967 | cam->curframe = vm->frame; |
2968 | cam->frame[cam->curframe].state = FRAME_READY; | |
2969 | return fetch_frame(cam); | |
2970 | } | |
d56410e0 | 2971 | |
1da177e4 LT |
2972 | static int goto_high_power(struct cam_data *cam) |
2973 | { | |
2974 | if (do_command(cam, CPIA_COMMAND_GotoHiPower, 0, 0, 0, 0)) | |
2975 | return -EIO; | |
2976 | msleep_interruptible(40); /* windows driver does it too */ | |
2977 | if(signal_pending(current)) | |
2978 | return -EINTR; | |
2979 | if (do_command(cam, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0)) | |
2980 | return -EIO; | |
2981 | if (cam->params.status.systemState == HI_POWER_STATE) { | |
2982 | DBG("camera now in HIGH power state\n"); | |
2983 | return 0; | |
2984 | } | |
2985 | printstatus(cam); | |
2986 | return -EIO; | |
2987 | } | |
2988 | ||
2989 | static int goto_low_power(struct cam_data *cam) | |
2990 | { | |
2991 | if (do_command(cam, CPIA_COMMAND_GotoLoPower, 0, 0, 0, 0)) | |
2992 | return -1; | |
2993 | if (do_command(cam, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0)) | |
2994 | return -1; | |
2995 | if (cam->params.status.systemState == LO_POWER_STATE) { | |
2996 | DBG("camera now in LOW power state\n"); | |
2997 | return 0; | |
2998 | } | |
2999 | printstatus(cam); | |
3000 | return -1; | |
3001 | } | |
3002 | ||
3003 | static void save_camera_state(struct cam_data *cam) | |
3004 | { | |
3005 | if(!(cam->cmd_queue & COMMAND_SETCOLOURBALANCE)) | |
3006 | do_command(cam, CPIA_COMMAND_GetColourBalance, 0, 0, 0, 0); | |
3007 | if(!(cam->cmd_queue & COMMAND_SETEXPOSURE)) | |
3008 | do_command(cam, CPIA_COMMAND_GetExposure, 0, 0, 0, 0); | |
3009 | ||
3010 | DBG("%d/%d/%d/%d/%d/%d/%d/%d\n", | |
3011 | cam->params.exposure.gain, | |
3012 | cam->params.exposure.fineExp, | |
3013 | cam->params.exposure.coarseExpLo, | |
3014 | cam->params.exposure.coarseExpHi, | |
3015 | cam->params.exposure.redComp, | |
3016 | cam->params.exposure.green1Comp, | |
3017 | cam->params.exposure.green2Comp, | |
3018 | cam->params.exposure.blueComp); | |
3019 | DBG("%d/%d/%d\n", | |
3020 | cam->params.colourBalance.redGain, | |
3021 | cam->params.colourBalance.greenGain, | |
3022 | cam->params.colourBalance.blueGain); | |
3023 | } | |
3024 | ||
3025 | static int set_camera_state(struct cam_data *cam) | |
3026 | { | |
3027 | cam->cmd_queue = COMMAND_SETCOMPRESSION | | |
d56410e0 MCC |
3028 | COMMAND_SETCOMPRESSIONTARGET | |
3029 | COMMAND_SETCOLOURPARAMS | | |
3030 | COMMAND_SETFORMAT | | |
3031 | COMMAND_SETYUVTHRESH | | |
3032 | COMMAND_SETECPTIMING | | |
3033 | COMMAND_SETCOMPRESSIONPARAMS | | |
3034 | COMMAND_SETEXPOSURE | | |
3035 | COMMAND_SETCOLOURBALANCE | | |
3036 | COMMAND_SETSENSORFPS | | |
3037 | COMMAND_SETAPCOR | | |
3038 | COMMAND_SETFLICKERCTRL | | |
3039 | COMMAND_SETVLOFFSET; | |
1da177e4 LT |
3040 | |
3041 | do_command(cam, CPIA_COMMAND_SetGrabMode, CPIA_GRAB_SINGLE,0,0,0); | |
3042 | dispatch_commands(cam); | |
d56410e0 | 3043 | |
1da177e4 LT |
3044 | /* Wait 6 frames for the sensor to get all settings and |
3045 | AEC/ACB to settle */ | |
3046 | msleep_interruptible(6*(cam->params.sensorFps.baserate ? 33 : 40) * | |
3047 | (1 << cam->params.sensorFps.divisor) + 10); | |
3048 | ||
3049 | if(signal_pending(current)) | |
3050 | return -EINTR; | |
d56410e0 | 3051 | |
1da177e4 LT |
3052 | save_camera_state(cam); |
3053 | ||
3054 | return 0; | |
3055 | } | |
3056 | ||
3057 | static void get_version_information(struct cam_data *cam) | |
3058 | { | |
3059 | /* GetCPIAVersion */ | |
3060 | do_command(cam, CPIA_COMMAND_GetCPIAVersion, 0, 0, 0, 0); | |
3061 | ||
3062 | /* GetPnPID */ | |
3063 | do_command(cam, CPIA_COMMAND_GetPnPID, 0, 0, 0, 0); | |
3064 | } | |
3065 | ||
3066 | /* initialize camera */ | |
3067 | static int reset_camera(struct cam_data *cam) | |
3068 | { | |
3069 | int err; | |
3070 | /* Start the camera in low power mode */ | |
3071 | if (goto_low_power(cam)) { | |
3072 | if (cam->params.status.systemState != WARM_BOOT_STATE) | |
3073 | return -ENODEV; | |
3074 | ||
3075 | /* FIXME: this is just dirty trial and error */ | |
3076 | err = goto_high_power(cam); | |
3077 | if(err) | |
3078 | return err; | |
3079 | do_command(cam, CPIA_COMMAND_DiscardFrame, 0, 0, 0, 0); | |
3080 | if (goto_low_power(cam)) | |
3081 | return -ENODEV; | |
3082 | } | |
d56410e0 | 3083 | |
1da177e4 | 3084 | /* procedure described in developer's guide p3-28 */ |
d56410e0 | 3085 | |
1da177e4 LT |
3086 | /* Check the firmware version. */ |
3087 | cam->params.version.firmwareVersion = 0; | |
3088 | get_version_information(cam); | |
3089 | if (cam->params.version.firmwareVersion != 1) | |
3090 | return -ENODEV; | |
3091 | ||
3092 | /* A bug in firmware 1-02 limits gainMode to 2 */ | |
3093 | if(cam->params.version.firmwareRevision <= 2 && | |
3094 | cam->params.exposure.gainMode > 2) { | |
3095 | cam->params.exposure.gainMode = 2; | |
3096 | } | |
3097 | ||
3098 | /* set QX3 detected flag */ | |
3099 | cam->params.qx3.qx3_detected = (cam->params.pnpID.vendor == 0x0813 && | |
3100 | cam->params.pnpID.product == 0x0001); | |
3101 | ||
d56410e0 | 3102 | /* The fatal error checking should be done after |
1da177e4 LT |
3103 | * the camera powers up (developer's guide p 3-38) */ |
3104 | ||
3105 | /* Set streamState before transition to high power to avoid bug | |
3106 | * in firmware 1-02 */ | |
3107 | do_command(cam, CPIA_COMMAND_ModifyCameraStatus, STREAMSTATE, 0, | |
d56410e0 MCC |
3108 | STREAM_NOT_READY, 0); |
3109 | ||
1da177e4 LT |
3110 | /* GotoHiPower */ |
3111 | err = goto_high_power(cam); | |
3112 | if (err) | |
3113 | return err; | |
3114 | ||
3115 | /* Check the camera status */ | |
3116 | if (do_command(cam, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0)) | |
3117 | return -EIO; | |
3118 | ||
3119 | if (cam->params.status.fatalError) { | |
3120 | DBG("fatal_error: %#04x\n", | |
3121 | cam->params.status.fatalError); | |
3122 | DBG("vp_status: %#04x\n", | |
3123 | cam->params.status.vpStatus); | |
3124 | if (cam->params.status.fatalError & ~(COM_FLAG|CPIA_FLAG)) { | |
3125 | /* Fatal error in camera */ | |
3126 | return -EIO; | |
3127 | } else if (cam->params.status.fatalError & (COM_FLAG|CPIA_FLAG)) { | |
3128 | /* Firmware 1-02 may do this for parallel port cameras, | |
3129 | * just clear the flags (developer's guide p 3-38) */ | |
3130 | do_command(cam, CPIA_COMMAND_ModifyCameraStatus, | |
d56410e0 | 3131 | FATALERROR, ~(COM_FLAG|CPIA_FLAG), 0, 0); |
1da177e4 LT |
3132 | } |
3133 | } | |
d56410e0 | 3134 | |
1da177e4 LT |
3135 | /* Check the camera status again */ |
3136 | if (cam->params.status.fatalError) { | |
3137 | if (cam->params.status.fatalError) | |
3138 | return -EIO; | |
3139 | } | |
d56410e0 | 3140 | |
1da177e4 LT |
3141 | /* VPVersion can't be retrieved before the camera is in HiPower, |
3142 | * so get it here instead of in get_version_information. */ | |
3143 | do_command(cam, CPIA_COMMAND_GetVPVersion, 0, 0, 0, 0); | |
3144 | ||
3145 | /* set camera to a known state */ | |
3146 | return set_camera_state(cam); | |
3147 | } | |
3148 | ||
3149 | static void put_cam(struct cpia_camera_ops* ops) | |
3150 | { | |
ac328989 | 3151 | module_put(ops->owner); |
1da177e4 LT |
3152 | } |
3153 | ||
3154 | /* ------------------------- V4L interface --------------------- */ | |
3155 | static int cpia_open(struct inode *inode, struct file *file) | |
3156 | { | |
3157 | struct video_device *dev = video_devdata(file); | |
3158 | struct cam_data *cam = dev->priv; | |
3159 | int err; | |
3160 | ||
3161 | if (!cam) { | |
3162 | DBG("Internal error, cam_data not found!\n"); | |
3163 | return -ENODEV; | |
3164 | } | |
3165 | ||
3166 | if (cam->open_count > 0) { | |
3167 | DBG("Camera already open\n"); | |
3168 | return -EBUSY; | |
3169 | } | |
3170 | ||
3171 | if (!try_module_get(cam->ops->owner)) | |
3172 | return -ENODEV; | |
3173 | ||
3593cab5 | 3174 | mutex_lock(&cam->busy_lock); |
1da177e4 LT |
3175 | err = -ENOMEM; |
3176 | if (!cam->raw_image) { | |
3177 | cam->raw_image = rvmalloc(CPIA_MAX_IMAGE_SIZE); | |
3178 | if (!cam->raw_image) | |
3179 | goto oops; | |
3180 | } | |
d56410e0 | 3181 | |
1da177e4 LT |
3182 | if (!cam->decompressed_frame.data) { |
3183 | cam->decompressed_frame.data = rvmalloc(CPIA_MAX_FRAME_SIZE); | |
3184 | if (!cam->decompressed_frame.data) | |
3185 | goto oops; | |
3186 | } | |
d56410e0 | 3187 | |
1da177e4 LT |
3188 | /* open cpia */ |
3189 | err = -ENODEV; | |
3190 | if (cam->ops->open(cam->lowlevel_data)) | |
3191 | goto oops; | |
d56410e0 | 3192 | |
1da177e4 LT |
3193 | /* reset the camera */ |
3194 | if ((err = reset_camera(cam)) != 0) { | |
3195 | cam->ops->close(cam->lowlevel_data); | |
3196 | goto oops; | |
3197 | } | |
d56410e0 | 3198 | |
1da177e4 LT |
3199 | err = -EINTR; |
3200 | if(signal_pending(current)) | |
3201 | goto oops; | |
3202 | ||
3203 | /* Set ownership of /proc/cpia/videoX to current user */ | |
3204 | if(cam->proc_entry) | |
3205 | cam->proc_entry->uid = current->uid; | |
3206 | ||
3207 | /* set mark for loading first frame uncompressed */ | |
3208 | cam->first_frame = 1; | |
3209 | ||
3210 | /* init it to something */ | |
3211 | cam->mmap_kludge = 0; | |
d56410e0 | 3212 | |
1da177e4 LT |
3213 | ++cam->open_count; |
3214 | file->private_data = dev; | |
3593cab5 | 3215 | mutex_unlock(&cam->busy_lock); |
1da177e4 LT |
3216 | return 0; |
3217 | ||
3218 | oops: | |
3219 | if (cam->decompressed_frame.data) { | |
3220 | rvfree(cam->decompressed_frame.data, CPIA_MAX_FRAME_SIZE); | |
3221 | cam->decompressed_frame.data = NULL; | |
3222 | } | |
3223 | if (cam->raw_image) { | |
3224 | rvfree(cam->raw_image, CPIA_MAX_IMAGE_SIZE); | |
3225 | cam->raw_image = NULL; | |
3226 | } | |
3593cab5 | 3227 | mutex_unlock(&cam->busy_lock); |
1da177e4 LT |
3228 | put_cam(cam->ops); |
3229 | return err; | |
3230 | } | |
3231 | ||
3232 | static int cpia_close(struct inode *inode, struct file *file) | |
3233 | { | |
3234 | struct video_device *dev = file->private_data; | |
3235 | struct cam_data *cam = dev->priv; | |
3236 | ||
3237 | if (cam->ops) { | |
d56410e0 | 3238 | /* Return ownership of /proc/cpia/videoX to root */ |
1da177e4 LT |
3239 | if(cam->proc_entry) |
3240 | cam->proc_entry->uid = 0; | |
d56410e0 | 3241 | |
1da177e4 LT |
3242 | /* save camera state for later open (developers guide ch 3.5.3) */ |
3243 | save_camera_state(cam); | |
3244 | ||
3245 | /* GotoLoPower */ | |
3246 | goto_low_power(cam); | |
3247 | ||
3248 | /* Update the camera status */ | |
3249 | do_command(cam, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0); | |
3250 | ||
3251 | /* cleanup internal state stuff */ | |
3252 | free_frames(cam->frame); | |
3253 | ||
3254 | /* close cpia */ | |
3255 | cam->ops->close(cam->lowlevel_data); | |
3256 | ||
3257 | put_cam(cam->ops); | |
3258 | } | |
3259 | ||
3260 | if (--cam->open_count == 0) { | |
3261 | /* clean up capture-buffers */ | |
3262 | if (cam->raw_image) { | |
3263 | rvfree(cam->raw_image, CPIA_MAX_IMAGE_SIZE); | |
3264 | cam->raw_image = NULL; | |
3265 | } | |
3266 | ||
3267 | if (cam->decompressed_frame.data) { | |
3268 | rvfree(cam->decompressed_frame.data, CPIA_MAX_FRAME_SIZE); | |
3269 | cam->decompressed_frame.data = NULL; | |
3270 | } | |
3271 | ||
3272 | if (cam->frame_buf) | |
3273 | free_frame_buf(cam); | |
3274 | ||
3275 | if (!cam->ops) | |
3276 | kfree(cam); | |
3277 | } | |
3278 | file->private_data = NULL; | |
3279 | ||
3280 | return 0; | |
3281 | } | |
3282 | ||
3283 | static ssize_t cpia_read(struct file *file, char __user *buf, | |
3284 | size_t count, loff_t *ppos) | |
3285 | { | |
3286 | struct video_device *dev = file->private_data; | |
3287 | struct cam_data *cam = dev->priv; | |
3288 | int err; | |
3289 | ||
3290 | /* make this _really_ smp and multithread-safe */ | |
3593cab5 | 3291 | if (mutex_lock_interruptible(&cam->busy_lock)) |
1da177e4 LT |
3292 | return -EINTR; |
3293 | ||
3294 | if (!buf) { | |
3295 | DBG("buf NULL\n"); | |
3593cab5 | 3296 | mutex_unlock(&cam->busy_lock); |
1da177e4 LT |
3297 | return -EINVAL; |
3298 | } | |
3299 | ||
3300 | if (!count) { | |
3301 | DBG("count 0\n"); | |
3593cab5 | 3302 | mutex_unlock(&cam->busy_lock); |
1da177e4 LT |
3303 | return 0; |
3304 | } | |
3305 | ||
3306 | if (!cam->ops) { | |
3307 | DBG("ops NULL\n"); | |
3593cab5 | 3308 | mutex_unlock(&cam->busy_lock); |
1da177e4 LT |
3309 | return -ENODEV; |
3310 | } | |
3311 | ||
3312 | /* upload frame */ | |
3313 | cam->decompressed_frame.state = FRAME_READY; | |
3314 | cam->mmap_kludge=0; | |
3315 | if((err = fetch_frame(cam)) != 0) { | |
3316 | DBG("ERROR from fetch_frame: %d\n", err); | |
3593cab5 | 3317 | mutex_unlock(&cam->busy_lock); |
1da177e4 LT |
3318 | return err; |
3319 | } | |
3320 | cam->decompressed_frame.state = FRAME_UNUSED; | |
3321 | ||
3322 | /* copy data to user space */ | |
3323 | if (cam->decompressed_frame.count > count) { | |
3324 | DBG("count wrong: %d, %lu\n", cam->decompressed_frame.count, | |
3325 | (unsigned long) count); | |
3593cab5 | 3326 | mutex_unlock(&cam->busy_lock); |
1da177e4 LT |
3327 | return -EFAULT; |
3328 | } | |
3329 | if (copy_to_user(buf, cam->decompressed_frame.data, | |
d56410e0 | 3330 | cam->decompressed_frame.count)) { |
1da177e4 | 3331 | DBG("copy_to_user failed\n"); |
3593cab5 | 3332 | mutex_unlock(&cam->busy_lock); |
1da177e4 LT |
3333 | return -EFAULT; |
3334 | } | |
3335 | ||
3593cab5 | 3336 | mutex_unlock(&cam->busy_lock); |
1da177e4 LT |
3337 | return cam->decompressed_frame.count; |
3338 | } | |
3339 | ||
3340 | static int cpia_do_ioctl(struct inode *inode, struct file *file, | |
3341 | unsigned int ioctlnr, void *arg) | |
3342 | { | |
3343 | struct video_device *dev = file->private_data; | |
3344 | struct cam_data *cam = dev->priv; | |
3345 | int retval = 0; | |
3346 | ||
3347 | if (!cam || !cam->ops) | |
3348 | return -ENODEV; | |
d56410e0 | 3349 | |
1da177e4 | 3350 | /* make this _really_ smp-safe */ |
3593cab5 | 3351 | if (mutex_lock_interruptible(&cam->busy_lock)) |
1da177e4 LT |
3352 | return -EINTR; |
3353 | ||
3354 | //DBG("cpia_ioctl: %u\n", ioctlnr); | |
3355 | ||
3356 | switch (ioctlnr) { | |
be787ace | 3357 | /* query capabilities */ |
1da177e4 LT |
3358 | case VIDIOCGCAP: |
3359 | { | |
3360 | struct video_capability *b = arg; | |
3361 | ||
3362 | DBG("VIDIOCGCAP\n"); | |
3363 | strcpy(b->name, "CPiA Camera"); | |
3364 | b->type = VID_TYPE_CAPTURE | VID_TYPE_SUBCAPTURE; | |
3365 | b->channels = 1; | |
3366 | b->audios = 0; | |
3367 | b->maxwidth = 352; /* VIDEOSIZE_CIF */ | |
3368 | b->maxheight = 288; | |
3369 | b->minwidth = 48; /* VIDEOSIZE_48_48 */ | |
3370 | b->minheight = 48; | |
3371 | break; | |
3372 | } | |
3373 | ||
3374 | /* get/set video source - we are a camera and nothing else */ | |
3375 | case VIDIOCGCHAN: | |
3376 | { | |
3377 | struct video_channel *v = arg; | |
3378 | ||
3379 | DBG("VIDIOCGCHAN\n"); | |
3380 | if (v->channel != 0) { | |
3381 | retval = -EINVAL; | |
3382 | break; | |
3383 | } | |
3384 | ||
3385 | v->channel = 0; | |
3386 | strcpy(v->name, "Camera"); | |
3387 | v->tuners = 0; | |
3388 | v->flags = 0; | |
3389 | v->type = VIDEO_TYPE_CAMERA; | |
3390 | v->norm = 0; | |
3391 | break; | |
3392 | } | |
d56410e0 | 3393 | |
1da177e4 LT |
3394 | case VIDIOCSCHAN: |
3395 | { | |
3396 | struct video_channel *v = arg; | |
3397 | ||
3398 | DBG("VIDIOCSCHAN\n"); | |
3399 | if (v->channel != 0) | |
3400 | retval = -EINVAL; | |
3401 | break; | |
3402 | } | |
3403 | ||
3404 | /* image properties */ | |
3405 | case VIDIOCGPICT: | |
3406 | { | |
3407 | struct video_picture *pic = arg; | |
3408 | DBG("VIDIOCGPICT\n"); | |
3409 | *pic = cam->vp; | |
3410 | break; | |
3411 | } | |
d56410e0 | 3412 | |
1da177e4 LT |
3413 | case VIDIOCSPICT: |
3414 | { | |
3415 | struct video_picture *vp = arg; | |
3416 | ||
3417 | DBG("VIDIOCSPICT\n"); | |
3418 | ||
3419 | /* check validity */ | |
3420 | DBG("palette: %d\n", vp->palette); | |
3421 | DBG("depth: %d\n", vp->depth); | |
3422 | if (!valid_mode(vp->palette, vp->depth)) { | |
3423 | retval = -EINVAL; | |
3424 | break; | |
3425 | } | |
3426 | ||
3593cab5 | 3427 | mutex_lock(&cam->param_lock); |
1da177e4 LT |
3428 | /* brightness, colour, contrast need no check 0-65535 */ |
3429 | cam->vp = *vp; | |
3430 | /* update cam->params.colourParams */ | |
3431 | cam->params.colourParams.brightness = vp->brightness*100/65535; | |
3432 | cam->params.colourParams.contrast = vp->contrast*100/65535; | |
3433 | cam->params.colourParams.saturation = vp->colour*100/65535; | |
3434 | /* contrast is in steps of 8, so round */ | |
3435 | cam->params.colourParams.contrast = | |
3436 | ((cam->params.colourParams.contrast + 3) / 8) * 8; | |
3437 | if (cam->params.version.firmwareVersion == 1 && | |
3438 | cam->params.version.firmwareRevision == 2 && | |
3439 | cam->params.colourParams.contrast > 80) { | |
3440 | /* 1-02 firmware limits contrast to 80 */ | |
3441 | cam->params.colourParams.contrast = 80; | |
3442 | } | |
3443 | ||
3444 | /* Adjust flicker control if necessary */ | |
3445 | if(cam->params.flickerControl.allowableOverExposure < 0) | |
d56410e0 | 3446 | cam->params.flickerControl.allowableOverExposure = |
1da177e4 LT |
3447 | -find_over_exposure(cam->params.colourParams.brightness); |
3448 | if(cam->params.flickerControl.flickerMode != 0) | |
3449 | cam->cmd_queue |= COMMAND_SETFLICKERCTRL; | |
d56410e0 | 3450 | |
1da177e4 LT |
3451 | |
3452 | /* queue command to update camera */ | |
3453 | cam->cmd_queue |= COMMAND_SETCOLOURPARAMS; | |
3593cab5 | 3454 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
3455 | DBG("VIDIOCSPICT: %d / %d // %d / %d / %d / %d\n", |
3456 | vp->depth, vp->palette, vp->brightness, vp->hue, vp->colour, | |
3457 | vp->contrast); | |
3458 | break; | |
3459 | } | |
3460 | ||
3461 | /* get/set capture window */ | |
3462 | case VIDIOCGWIN: | |
3463 | { | |
3464 | struct video_window *vw = arg; | |
3465 | DBG("VIDIOCGWIN\n"); | |
3466 | ||
3467 | *vw = cam->vw; | |
3468 | break; | |
3469 | } | |
d56410e0 | 3470 | |
1da177e4 LT |
3471 | case VIDIOCSWIN: |
3472 | { | |
3473 | /* copy_from_user, check validity, copy to internal structure */ | |
3474 | struct video_window *vw = arg; | |
3475 | DBG("VIDIOCSWIN\n"); | |
3476 | ||
3477 | if (vw->clipcount != 0) { /* clipping not supported */ | |
3478 | retval = -EINVAL; | |
3479 | break; | |
3480 | } | |
3481 | if (vw->clips != NULL) { /* clipping not supported */ | |
3482 | retval = -EINVAL; | |
3483 | break; | |
3484 | } | |
3485 | ||
3486 | /* we set the video window to something smaller or equal to what | |
3487 | * is requested by the user??? | |
3488 | */ | |
3593cab5 | 3489 | mutex_lock(&cam->param_lock); |
1da177e4 LT |
3490 | if (vw->width != cam->vw.width || vw->height != cam->vw.height) { |
3491 | int video_size = match_videosize(vw->width, vw->height); | |
3492 | ||
3493 | if (video_size < 0) { | |
3494 | retval = -EINVAL; | |
3593cab5 | 3495 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
3496 | break; |
3497 | } | |
3498 | cam->video_size = video_size; | |
3499 | ||
3500 | /* video size is changing, reset the subcapture area */ | |
3501 | memset(&cam->vc, 0, sizeof(cam->vc)); | |
d56410e0 | 3502 | |
1da177e4 LT |
3503 | set_vw_size(cam); |
3504 | DBG("%d / %d\n", cam->vw.width, cam->vw.height); | |
3505 | cam->cmd_queue |= COMMAND_SETFORMAT; | |
3506 | } | |
3507 | ||
3593cab5 | 3508 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
3509 | |
3510 | /* setformat ignored by camera during streaming, | |
3511 | * so stop/dispatch/start */ | |
3512 | if (cam->cmd_queue & COMMAND_SETFORMAT) { | |
3513 | DBG("\n"); | |
3514 | dispatch_commands(cam); | |
3515 | } | |
3516 | DBG("%d/%d:%d\n", cam->video_size, | |
3517 | cam->vw.width, cam->vw.height); | |
3518 | break; | |
3519 | } | |
3520 | ||
3521 | /* mmap interface */ | |
3522 | case VIDIOCGMBUF: | |
3523 | { | |
3524 | struct video_mbuf *vm = arg; | |
3525 | int i; | |
3526 | ||
3527 | DBG("VIDIOCGMBUF\n"); | |
3528 | memset(vm, 0, sizeof(*vm)); | |
3529 | vm->size = CPIA_MAX_FRAME_SIZE*FRAME_NUM; | |
3530 | vm->frames = FRAME_NUM; | |
3531 | for (i = 0; i < FRAME_NUM; i++) | |
3532 | vm->offsets[i] = CPIA_MAX_FRAME_SIZE * i; | |
3533 | break; | |
3534 | } | |
d56410e0 | 3535 | |
1da177e4 LT |
3536 | case VIDIOCMCAPTURE: |
3537 | { | |
3538 | struct video_mmap *vm = arg; | |
3539 | int video_size; | |
3540 | ||
3541 | DBG("VIDIOCMCAPTURE: %d / %d / %dx%d\n", vm->format, vm->frame, | |
3542 | vm->width, vm->height); | |
3543 | if (vm->frame<0||vm->frame>=FRAME_NUM) { | |
3544 | retval = -EINVAL; | |
3545 | break; | |
3546 | } | |
3547 | ||
3548 | /* set video format */ | |
3549 | cam->vp.palette = vm->format; | |
3550 | switch(vm->format) { | |
3551 | case VIDEO_PALETTE_GREY: | |
3552 | cam->vp.depth=8; | |
3553 | break; | |
3554 | case VIDEO_PALETTE_RGB555: | |
3555 | case VIDEO_PALETTE_RGB565: | |
3556 | case VIDEO_PALETTE_YUV422: | |
3557 | case VIDEO_PALETTE_YUYV: | |
3558 | case VIDEO_PALETTE_UYVY: | |
3559 | cam->vp.depth = 16; | |
3560 | break; | |
3561 | case VIDEO_PALETTE_RGB24: | |
3562 | cam->vp.depth = 24; | |
3563 | break; | |
3564 | case VIDEO_PALETTE_RGB32: | |
3565 | cam->vp.depth = 32; | |
3566 | break; | |
3567 | default: | |
3568 | retval = -EINVAL; | |
3569 | break; | |
3570 | } | |
3571 | if (retval) | |
3572 | break; | |
3573 | ||
3574 | /* set video size */ | |
3575 | video_size = match_videosize(vm->width, vm->height); | |
3576 | if (video_size < 0) { | |
3577 | retval = -EINVAL; | |
3578 | break; | |
3579 | } | |
3580 | if (video_size != cam->video_size) { | |
3581 | cam->video_size = video_size; | |
3582 | ||
3583 | /* video size is changing, reset the subcapture area */ | |
3584 | memset(&cam->vc, 0, sizeof(cam->vc)); | |
d56410e0 | 3585 | |
1da177e4 LT |
3586 | set_vw_size(cam); |
3587 | cam->cmd_queue |= COMMAND_SETFORMAT; | |
3588 | dispatch_commands(cam); | |
3589 | } | |
3590 | /* according to v4l-spec we must start streaming here */ | |
3591 | cam->mmap_kludge = 1; | |
3592 | retval = capture_frame(cam, vm); | |
3593 | ||
3594 | break; | |
3595 | } | |
d56410e0 | 3596 | |
1da177e4 LT |
3597 | case VIDIOCSYNC: |
3598 | { | |
3599 | int *frame = arg; | |
3600 | ||
3601 | //DBG("VIDIOCSYNC: %d\n", *frame); | |
3602 | ||
3603 | if (*frame<0 || *frame >= FRAME_NUM) { | |
3604 | retval = -EINVAL; | |
3605 | break; | |
3606 | } | |
3607 | ||
3608 | switch (cam->frame[*frame].state) { | |
3609 | case FRAME_UNUSED: | |
3610 | case FRAME_READY: | |
3611 | case FRAME_GRABBING: | |
3612 | DBG("sync to unused frame %d\n", *frame); | |
3613 | retval = -EINVAL; | |
3614 | break; | |
3615 | ||
3616 | case FRAME_DONE: | |
3617 | cam->frame[*frame].state = FRAME_UNUSED; | |
3618 | //DBG("VIDIOCSYNC: %d synced\n", *frame); | |
3619 | break; | |
3620 | } | |
3621 | if (retval == -EINTR) { | |
3622 | /* FIXME - xawtv does not handle this nice */ | |
3623 | retval = 0; | |
3624 | } | |
3625 | break; | |
3626 | } | |
3627 | ||
3628 | case VIDIOCGCAPTURE: | |
3629 | { | |
3630 | struct video_capture *vc = arg; | |
3631 | ||
3632 | DBG("VIDIOCGCAPTURE\n"); | |
3633 | ||
3634 | *vc = cam->vc; | |
3635 | ||
3636 | break; | |
d56410e0 | 3637 | } |
1da177e4 LT |
3638 | |
3639 | case VIDIOCSCAPTURE: | |
3640 | { | |
3641 | struct video_capture *vc = arg; | |
3642 | ||
3643 | DBG("VIDIOCSCAPTURE\n"); | |
3644 | ||
3645 | if (vc->decimation != 0) { /* How should this be used? */ | |
3646 | retval = -EINVAL; | |
3647 | break; | |
3648 | } | |
3649 | if (vc->flags != 0) { /* Even/odd grab not supported */ | |
3650 | retval = -EINVAL; | |
3651 | break; | |
3652 | } | |
d56410e0 | 3653 | |
1da177e4 LT |
3654 | /* Clip to the resolution we can set for the ROI |
3655 | (every 8 columns and 4 rows) */ | |
3656 | vc->x = vc->x & ~(__u32)7; | |
3657 | vc->y = vc->y & ~(__u32)3; | |
3658 | vc->width = vc->width & ~(__u32)7; | |
3659 | vc->height = vc->height & ~(__u32)3; | |
3660 | ||
3661 | if(vc->width == 0 || vc->height == 0 || | |
3662 | vc->x + vc->width > cam->vw.width || | |
3663 | vc->y + vc->height > cam->vw.height) { | |
3664 | retval = -EINVAL; | |
3665 | break; | |
3666 | } | |
3667 | ||
3668 | DBG("%d,%d/%dx%d\n", vc->x,vc->y,vc->width, vc->height); | |
d56410e0 | 3669 | |
3593cab5 | 3670 | mutex_lock(&cam->param_lock); |
d56410e0 | 3671 | |
1da177e4 LT |
3672 | cam->vc.x = vc->x; |
3673 | cam->vc.y = vc->y; | |
3674 | cam->vc.width = vc->width; | |
3675 | cam->vc.height = vc->height; | |
d56410e0 | 3676 | |
1da177e4 LT |
3677 | set_vw_size(cam); |
3678 | cam->cmd_queue |= COMMAND_SETFORMAT; | |
3679 | ||
3593cab5 | 3680 | mutex_unlock(&cam->param_lock); |
1da177e4 LT |
3681 | |
3682 | /* setformat ignored by camera during streaming, | |
3683 | * so stop/dispatch/start */ | |
3684 | dispatch_commands(cam); | |
3685 | break; | |
3686 | } | |
d56410e0 | 3687 | |
1da177e4 LT |
3688 | case VIDIOCGUNIT: |
3689 | { | |
3690 | struct video_unit *vu = arg; | |
3691 | ||
3692 | DBG("VIDIOCGUNIT\n"); | |
3693 | ||
3694 | vu->video = cam->vdev.minor; | |
3695 | vu->vbi = VIDEO_NO_UNIT; | |
3696 | vu->radio = VIDEO_NO_UNIT; | |
3697 | vu->audio = VIDEO_NO_UNIT; | |
3698 | vu->teletext = VIDEO_NO_UNIT; | |
3699 | ||
3700 | break; | |
3701 | } | |
3702 | ||
d56410e0 | 3703 | |
1da177e4 LT |
3704 | /* pointless to implement overlay with this camera */ |
3705 | case VIDIOCCAPTURE: | |
3706 | case VIDIOCGFBUF: | |
3707 | case VIDIOCSFBUF: | |
3708 | case VIDIOCKEY: | |
3709 | /* tuner interface - we have none */ | |
3710 | case VIDIOCGTUNER: | |
3711 | case VIDIOCSTUNER: | |
3712 | case VIDIOCGFREQ: | |
3713 | case VIDIOCSFREQ: | |
3714 | /* audio interface - we have none */ | |
3715 | case VIDIOCGAUDIO: | |
3716 | case VIDIOCSAUDIO: | |
3717 | retval = -EINVAL; | |
3718 | break; | |
3719 | default: | |
3720 | retval = -ENOIOCTLCMD; | |
3721 | break; | |
3722 | } | |
3723 | ||
3593cab5 | 3724 | mutex_unlock(&cam->busy_lock); |
1da177e4 | 3725 | return retval; |
d56410e0 | 3726 | } |
1da177e4 LT |
3727 | |
3728 | static int cpia_ioctl(struct inode *inode, struct file *file, | |
3729 | unsigned int cmd, unsigned long arg) | |
3730 | { | |
3731 | return video_usercopy(inode, file, cmd, arg, cpia_do_ioctl); | |
3732 | } | |
3733 | ||
3734 | ||
3735 | /* FIXME */ | |
3736 | static int cpia_mmap(struct file *file, struct vm_area_struct *vma) | |
3737 | { | |
3738 | struct video_device *dev = file->private_data; | |
3739 | unsigned long start = vma->vm_start; | |
3740 | unsigned long size = vma->vm_end - vma->vm_start; | |
3741 | unsigned long page, pos; | |
3742 | struct cam_data *cam = dev->priv; | |
3743 | int retval; | |
3744 | ||
3745 | if (!cam || !cam->ops) | |
3746 | return -ENODEV; | |
d56410e0 | 3747 | |
1da177e4 LT |
3748 | DBG("cpia_mmap: %ld\n", size); |
3749 | ||
3750 | if (size > FRAME_NUM*CPIA_MAX_FRAME_SIZE) | |
3751 | return -EINVAL; | |
3752 | ||
3753 | if (!cam || !cam->ops) | |
3754 | return -ENODEV; | |
d56410e0 | 3755 | |
1da177e4 | 3756 | /* make this _really_ smp-safe */ |
3593cab5 | 3757 | if (mutex_lock_interruptible(&cam->busy_lock)) |
1da177e4 LT |
3758 | return -EINTR; |
3759 | ||
3760 | if (!cam->frame_buf) { /* we do lazy allocation */ | |
3761 | if ((retval = allocate_frame_buf(cam))) { | |
3593cab5 | 3762 | mutex_unlock(&cam->busy_lock); |
1da177e4 LT |
3763 | return retval; |
3764 | } | |
3765 | } | |
3766 | ||
3767 | pos = (unsigned long)(cam->frame_buf); | |
3768 | while (size > 0) { | |
3769 | page = vmalloc_to_pfn((void *)pos); | |
3770 | if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) { | |
3593cab5 | 3771 | mutex_unlock(&cam->busy_lock); |
1da177e4 LT |
3772 | return -EAGAIN; |
3773 | } | |
3774 | start += PAGE_SIZE; | |
3775 | pos += PAGE_SIZE; | |
3776 | if (size > PAGE_SIZE) | |
3777 | size -= PAGE_SIZE; | |
3778 | else | |
3779 | size = 0; | |
3780 | } | |
3781 | ||
3782 | DBG("cpia_mmap: %ld\n", size); | |
3593cab5 | 3783 | mutex_unlock(&cam->busy_lock); |
1da177e4 LT |
3784 | |
3785 | return 0; | |
3786 | } | |
3787 | ||
fa027c2a | 3788 | static const struct file_operations cpia_fops = { |
1da177e4 LT |
3789 | .owner = THIS_MODULE, |
3790 | .open = cpia_open, | |
3791 | .release = cpia_close, | |
3792 | .read = cpia_read, | |
3793 | .mmap = cpia_mmap, | |
3794 | .ioctl = cpia_ioctl, | |
078ff795 | 3795 | #ifdef CONFIG_COMPAT |
0d0fbf81 | 3796 | .compat_ioctl = v4l_compat_ioctl32, |
078ff795 | 3797 | #endif |
1da177e4 LT |
3798 | .llseek = no_llseek, |
3799 | }; | |
3800 | ||
3801 | static struct video_device cpia_template = { | |
1da177e4 | 3802 | .name = "CPiA Camera", |
1da177e4 | 3803 | .fops = &cpia_fops, |
aa5e90af | 3804 | .release = video_device_release_empty, |
1da177e4 LT |
3805 | }; |
3806 | ||
3807 | /* initialise cam_data structure */ | |
3808 | static void reset_camera_struct(struct cam_data *cam) | |
3809 | { | |
3810 | /* The following parameter values are the defaults from | |
3811 | * "Software Developer's Guide for CPiA Cameras". Any changes | |
3812 | * to the defaults are noted in comments. */ | |
3813 | cam->params.colourParams.brightness = 50; | |
3814 | cam->params.colourParams.contrast = 48; | |
3815 | cam->params.colourParams.saturation = 50; | |
3816 | cam->params.exposure.gainMode = 4; | |
3817 | cam->params.exposure.expMode = 2; /* AEC */ | |
3818 | cam->params.exposure.compMode = 1; | |
3819 | cam->params.exposure.centreWeight = 1; | |
3820 | cam->params.exposure.gain = 0; | |
3821 | cam->params.exposure.fineExp = 0; | |
3822 | cam->params.exposure.coarseExpLo = 185; | |
3823 | cam->params.exposure.coarseExpHi = 0; | |
3824 | cam->params.exposure.redComp = COMP_RED; | |
3825 | cam->params.exposure.green1Comp = COMP_GREEN1; | |
3826 | cam->params.exposure.green2Comp = COMP_GREEN2; | |
3827 | cam->params.exposure.blueComp = COMP_BLUE; | |
3828 | cam->params.colourBalance.balanceMode = 2; /* ACB */ | |
3829 | cam->params.colourBalance.redGain = 32; | |
3830 | cam->params.colourBalance.greenGain = 6; | |
3831 | cam->params.colourBalance.blueGain = 92; | |
3832 | cam->params.apcor.gain1 = 0x18; | |
3833 | cam->params.apcor.gain2 = 0x16; | |
3834 | cam->params.apcor.gain4 = 0x24; | |
3835 | cam->params.apcor.gain8 = 0x34; | |
3836 | cam->params.flickerControl.flickerMode = 0; | |
3837 | cam->params.flickerControl.disabled = 1; | |
3838 | ||
d56410e0 | 3839 | cam->params.flickerControl.coarseJump = |
1da177e4 | 3840 | flicker_jumps[cam->mainsFreq] |
d56410e0 MCC |
3841 | [cam->params.sensorFps.baserate] |
3842 | [cam->params.sensorFps.divisor]; | |
3843 | cam->params.flickerControl.allowableOverExposure = | |
1da177e4 LT |
3844 | -find_over_exposure(cam->params.colourParams.brightness); |
3845 | cam->params.vlOffset.gain1 = 20; | |
3846 | cam->params.vlOffset.gain2 = 24; | |
3847 | cam->params.vlOffset.gain4 = 26; | |
3848 | cam->params.vlOffset.gain8 = 26; | |
3849 | cam->params.compressionParams.hysteresis = 3; | |
3850 | cam->params.compressionParams.threshMax = 11; | |
3851 | cam->params.compressionParams.smallStep = 1; | |
3852 | cam->params.compressionParams.largeStep = 3; | |
3853 | cam->params.compressionParams.decimationHysteresis = 2; | |
3854 | cam->params.compressionParams.frDiffStepThresh = 5; | |
3855 | cam->params.compressionParams.qDiffStepThresh = 3; | |
3856 | cam->params.compressionParams.decimationThreshMod = 2; | |
3857 | /* End of default values from Software Developer's Guide */ | |
d56410e0 | 3858 | |
1da177e4 LT |
3859 | cam->transfer_rate = 0; |
3860 | cam->exposure_status = EXPOSURE_NORMAL; | |
d56410e0 | 3861 | |
1da177e4 LT |
3862 | /* Set Sensor FPS to 15fps. This seems better than 30fps |
3863 | * for indoor lighting. */ | |
3864 | cam->params.sensorFps.divisor = 1; | |
3865 | cam->params.sensorFps.baserate = 1; | |
d56410e0 | 3866 | |
1da177e4 LT |
3867 | cam->params.yuvThreshold.yThreshold = 6; /* From windows driver */ |
3868 | cam->params.yuvThreshold.uvThreshold = 6; /* From windows driver */ | |
d56410e0 | 3869 | |
1da177e4 LT |
3870 | cam->params.format.subSample = SUBSAMPLE_422; |
3871 | cam->params.format.yuvOrder = YUVORDER_YUYV; | |
d56410e0 | 3872 | |
1da177e4 LT |
3873 | cam->params.compression.mode = CPIA_COMPRESSION_AUTO; |
3874 | cam->params.compressionTarget.frTargeting = | |
3875 | CPIA_COMPRESSION_TARGET_QUALITY; | |
3876 | cam->params.compressionTarget.targetFR = 15; /* From windows driver */ | |
3877 | cam->params.compressionTarget.targetQ = 5; /* From windows driver */ | |
3878 | ||
3879 | cam->params.qx3.qx3_detected = 0; | |
3880 | cam->params.qx3.toplight = 0; | |
3881 | cam->params.qx3.bottomlight = 0; | |
3882 | cam->params.qx3.button = 0; | |
3883 | cam->params.qx3.cradled = 0; | |
3884 | ||
3885 | cam->video_size = VIDEOSIZE_CIF; | |
d56410e0 | 3886 | |
1da177e4 LT |
3887 | cam->vp.colour = 32768; /* 50% */ |
3888 | cam->vp.hue = 32768; /* 50% */ | |
3889 | cam->vp.brightness = 32768; /* 50% */ | |
3890 | cam->vp.contrast = 32768; /* 50% */ | |
3891 | cam->vp.whiteness = 0; /* not used -> grayscale only */ | |
3892 | cam->vp.depth = 24; /* to be set by user */ | |
3893 | cam->vp.palette = VIDEO_PALETTE_RGB24; /* to be set by user */ | |
3894 | ||
3895 | cam->vc.x = 0; | |
3896 | cam->vc.y = 0; | |
3897 | cam->vc.width = 0; | |
3898 | cam->vc.height = 0; | |
d56410e0 | 3899 | |
1da177e4 LT |
3900 | cam->vw.x = 0; |
3901 | cam->vw.y = 0; | |
3902 | set_vw_size(cam); | |
3903 | cam->vw.chromakey = 0; | |
3904 | cam->vw.flags = 0; | |
3905 | cam->vw.clipcount = 0; | |
3906 | cam->vw.clips = NULL; | |
3907 | ||
3908 | cam->cmd_queue = COMMAND_NONE; | |
3909 | cam->first_frame = 1; | |
3910 | ||
3911 | return; | |
3912 | } | |
3913 | ||
3914 | /* initialize cam_data structure */ | |
3915 | static void init_camera_struct(struct cam_data *cam, | |
d56410e0 | 3916 | struct cpia_camera_ops *ops ) |
1da177e4 LT |
3917 | { |
3918 | int i; | |
3919 | ||
3920 | /* Default everything to 0 */ | |
3921 | memset(cam, 0, sizeof(struct cam_data)); | |
3922 | ||
3923 | cam->ops = ops; | |
3593cab5 IM |
3924 | mutex_init(&cam->param_lock); |
3925 | mutex_init(&cam->busy_lock); | |
1da177e4 LT |
3926 | |
3927 | reset_camera_struct(cam); | |
3928 | ||
3929 | cam->proc_entry = NULL; | |
3930 | ||
3931 | memcpy(&cam->vdev, &cpia_template, sizeof(cpia_template)); | |
3932 | cam->vdev.priv = cam; | |
d56410e0 | 3933 | |
1da177e4 LT |
3934 | cam->curframe = 0; |
3935 | for (i = 0; i < FRAME_NUM; i++) { | |
3936 | cam->frame[i].width = 0; | |
3937 | cam->frame[i].height = 0; | |
3938 | cam->frame[i].state = FRAME_UNUSED; | |
3939 | cam->frame[i].data = NULL; | |
3940 | } | |
3941 | cam->decompressed_frame.width = 0; | |
3942 | cam->decompressed_frame.height = 0; | |
3943 | cam->decompressed_frame.state = FRAME_UNUSED; | |
3944 | cam->decompressed_frame.data = NULL; | |
3945 | } | |
3946 | ||
3947 | struct cam_data *cpia_register_camera(struct cpia_camera_ops *ops, void *lowlevel) | |
3948 | { | |
d56410e0 MCC |
3949 | struct cam_data *camera; |
3950 | ||
1da177e4 LT |
3951 | if ((camera = kmalloc(sizeof(struct cam_data), GFP_KERNEL)) == NULL) |
3952 | return NULL; | |
3953 | ||
d56410e0 | 3954 | |
1da177e4 LT |
3955 | init_camera_struct( camera, ops ); |
3956 | camera->lowlevel_data = lowlevel; | |
d56410e0 | 3957 | |
1da177e4 | 3958 | /* register v4l device */ |
dc60de33 | 3959 | if (video_register_device(&camera->vdev, VFL_TYPE_GRABBER, video_nr) < 0) { |
1da177e4 LT |
3960 | kfree(camera); |
3961 | printk(KERN_DEBUG "video_register_device failed\n"); | |
3962 | return NULL; | |
3963 | } | |
3964 | ||
3965 | /* get version information from camera: open/reset/close */ | |
3966 | ||
3967 | /* open cpia */ | |
3968 | if (camera->ops->open(camera->lowlevel_data)) | |
3969 | return camera; | |
d56410e0 | 3970 | |
1da177e4 LT |
3971 | /* reset the camera */ |
3972 | if (reset_camera(camera) != 0) { | |
3973 | camera->ops->close(camera->lowlevel_data); | |
3974 | return camera; | |
3975 | } | |
3976 | ||
3977 | /* close cpia */ | |
3978 | camera->ops->close(camera->lowlevel_data); | |
3979 | ||
3980 | #ifdef CONFIG_PROC_FS | |
3981 | create_proc_cpia_cam(camera); | |
3982 | #endif | |
3983 | ||
3984 | printk(KERN_INFO " CPiA Version: %d.%02d (%d.%d)\n", | |
3985 | camera->params.version.firmwareVersion, | |
3986 | camera->params.version.firmwareRevision, | |
3987 | camera->params.version.vcVersion, | |
3988 | camera->params.version.vcRevision); | |
3989 | printk(KERN_INFO " CPiA PnP-ID: %04x:%04x:%04x\n", | |
3990 | camera->params.pnpID.vendor, | |
3991 | camera->params.pnpID.product, | |
3992 | camera->params.pnpID.deviceRevision); | |
3993 | printk(KERN_INFO " VP-Version: %d.%d %04x\n", | |
3994 | camera->params.vpVersion.vpVersion, | |
3995 | camera->params.vpVersion.vpRevision, | |
3996 | camera->params.vpVersion.cameraHeadID); | |
3997 | ||
3998 | return camera; | |
3999 | } | |
4000 | ||
4001 | void cpia_unregister_camera(struct cam_data *cam) | |
4002 | { | |
4003 | DBG("unregistering video\n"); | |
4004 | video_unregister_device(&cam->vdev); | |
4005 | if (cam->open_count) { | |
4006 | put_cam(cam->ops); | |
4007 | DBG("camera open -- setting ops to NULL\n"); | |
4008 | cam->ops = NULL; | |
4009 | } | |
d56410e0 | 4010 | |
1da177e4 LT |
4011 | #ifdef CONFIG_PROC_FS |
4012 | DBG("destroying /proc/cpia/video%d\n", cam->vdev.minor); | |
4013 | destroy_proc_cpia_cam(cam); | |
d56410e0 | 4014 | #endif |
1da177e4 LT |
4015 | if (!cam->open_count) { |
4016 | DBG("freeing camera\n"); | |
4017 | kfree(cam); | |
4018 | } | |
4019 | } | |
4020 | ||
4021 | static int __init cpia_init(void) | |
4022 | { | |
4023 | printk(KERN_INFO "%s v%d.%d.%d\n", ABOUT, | |
4024 | CPIA_MAJ_VER, CPIA_MIN_VER, CPIA_PATCH_VER); | |
4025 | ||
4026 | printk(KERN_WARNING "Since in-kernel colorspace conversion is not " | |
4027 | "allowed, it is disabled by default now. Users should fix the " | |
4028 | "applications in case they don't work without conversion " | |
4029 | "reenabled by setting the 'colorspace_conv' module " | |
9419045f | 4030 | "parameter to 1\n"); |
1da177e4 LT |
4031 | |
4032 | #ifdef CONFIG_PROC_FS | |
4033 | proc_cpia_create(); | |
4034 | #endif | |
4035 | ||
1da177e4 LT |
4036 | return 0; |
4037 | } | |
4038 | ||
4039 | static void __exit cpia_exit(void) | |
4040 | { | |
4041 | #ifdef CONFIG_PROC_FS | |
4042 | proc_cpia_destroy(); | |
4043 | #endif | |
4044 | } | |
4045 | ||
4046 | module_init(cpia_init); | |
4047 | module_exit(cpia_exit); | |
4048 | ||
4049 | /* Exported symbols for modules. */ | |
4050 | ||
4051 | EXPORT_SYMBOL(cpia_register_camera); | |
4052 | EXPORT_SYMBOL(cpia_unregister_camera); |