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Commit 002b40d8 authored by Alan Cox's avatar Alan Cox Committed by Linus Torvalds
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[PATCH] cpia driver update from maintainer

parent 4a142aba
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Showing with 1179 additions and 391 deletions
drivers/media/video/cpia.c
View file @ 002b40d8
......@@ -6,6 +6,7 @@
* (C) Copyright 1999-2000 Peter Pregler
* (C) Copyright 1999-2000 Scott J. Bertin
* (C) Copyright 1999-2000 Johannes Erdfelt <johannes@erdfelt.com>
* (C) Copyright 2000 STMicroelectronics
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
......@@ -30,7 +31,6 @@
#include <linux/init.h>
#include <linux/fs.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/proc_fs.h>
#include <linux/ctype.h>
......@@ -101,6 +101,7 @@ MODULE_SUPPORTED_DEVICE("video");
#define CPIA_COMMAND_I2CRead (INPUT | CPIA_MODULE_SYSTEM | 13)
#define CPIA_COMMAND_GetVPVersion (INPUT | CPIA_MODULE_VP_CTRL | 1)
#define CPIA_COMMAND_ResetFrameCounter (INPUT | CPIA_MODULE_VP_CTRL | 2)
#define CPIA_COMMAND_SetColourParams (OUTPUT | CPIA_MODULE_VP_CTRL | 3)
#define CPIA_COMMAND_SetExposure (OUTPUT | CPIA_MODULE_VP_CTRL | 4)
#define CPIA_COMMAND_SetColourBalance (OUTPUT | CPIA_MODULE_VP_CTRL | 6)
......@@ -131,6 +132,7 @@ MODULE_SUPPORTED_DEVICE("video");
#define CPIA_COMMAND_SetYUVThresh (OUTPUT | CPIA_MODULE_CAPTURE | 12)
#define CPIA_COMMAND_SetCompressionParams (OUTPUT | CPIA_MODULE_CAPTURE | 13)
#define CPIA_COMMAND_DiscardFrame (OUTPUT | CPIA_MODULE_CAPTURE | 14)
#define CPIA_COMMAND_GrabReset (OUTPUT | CPIA_MODULE_CAPTURE | 15)
#define CPIA_COMMAND_OutputRS232 (OUTPUT | CPIA_MODULE_DEBUG | 1)
#define CPIA_COMMAND_AbortProcess (OUTPUT | CPIA_MODULE_DEBUG | 4)
......@@ -139,6 +141,7 @@ MODULE_SUPPORTED_DEVICE("video");
#define CPIA_COMMAND_StartDummyDtream (OUTPUT | CPIA_MODULE_DEBUG | 8)
#define CPIA_COMMAND_AbortStream (OUTPUT | CPIA_MODULE_DEBUG | 9)
#define CPIA_COMMAND_DownloadDRAM (OUTPUT | CPIA_MODULE_DEBUG | 10)
#define CPIA_COMMAND_Null (OUTPUT | CPIA_MODULE_DEBUG | 11)
enum {
FRAME_READY, /* Ready to grab into */
......@@ -164,6 +167,25 @@ enum {
#define COMMAND_SETFLICKERCTRL 0x2000
#define COMMAND_SETVLOFFSET 0x4000
#define COMMAND_SETLIGHTS 0x8000
#define ROUND_UP_EXP_FOR_FLICKER 15
/* Constants for automatic frame rate adjustment */
#define MAX_EXP 302
#define MAX_EXP_102 255
#define LOW_EXP 140
#define VERY_LOW_EXP 70
#define TC 94
#define EXP_ACC_DARK 50
#define EXP_ACC_LIGHT 90
#define HIGH_COMP_102 160
#define MAX_COMP 239
#define DARK_TIME 3
#define LIGHT_TIME 3
/* Maximum number of 10ms loops to wait for the stream to become ready */
#define READY_TIMEOUT 100
/* Developer's Guide Table 5 p 3-34
* indexed by [mains][sensorFps.baserate][sensorFps.divisor]*/
static u8 flicker_jumps[2][2][4] =
......@@ -173,6 +195,10 @@ static u8 flicker_jumps[2][2][4] =
/* forward declaration of local function */
static void reset_camera_struct(struct cam_data *cam);
static int find_over_exposure(int brightness);
static void set_flicker(struct cam_params *params, volatile u32 *command_flags,
int on);
/**********************************************************************
*
......@@ -291,12 +317,6 @@ static int cpia_read_proc(char *page, char **start, off_t off,
out += sprintf(out, "video_size: %s\n",
cam->params.format.videoSize == VIDEOSIZE_CIF ?
"CIF " : "QCIF");
out += sprintf(out, "sub_sample: %s\n",
cam->params.format.subSample == SUBSAMPLE_420 ?
"420" : "422");
out += sprintf(out, "yuv_order: %s\n",
cam->params.format.yuvOrder == YUVORDER_YUYV ?
"YUYV" : "UYVY");
out += sprintf(out, "roi: (%3d, %3d) to (%3d, %3d)\n",
cam->params.roi.colStart*8,
cam->params.roi.rowStart*4,
......@@ -331,11 +351,17 @@ static int cpia_read_proc(char *page, char **start, off_t off,
2*cam->params.streamStartLine, 0,
cam->params.format.videoSize == VIDEOSIZE_CIF ? 288:144,
cam->params.format.videoSize == VIDEOSIZE_CIF ? 240:120);
out += sprintf(out, "sub_sample: %8s %8s %8s %8s\n",
cam->params.format.subSample == SUBSAMPLE_420 ?
"420" : "422", "420", "422", "422");
out += sprintf(out, "yuv_order: %8s %8s %8s %8s\n",
cam->params.format.yuvOrder == YUVORDER_YUYV ?
"YUYV" : "UYVY", "YUYV" , "UYVY", "YUYV");
out += sprintf(out, "ecp_timing: %8s %8s %8s %8s\n",
cam->params.ecpTiming ? "slow" : "normal", "slow",
"normal", "normal");
if (cam->params.colourBalance.balanceModeIsAuto) {
if (cam->params.colourBalance.balanceMode == 2) {
sprintf(tmpstr, "auto");
} else {
sprintf(tmpstr, "manual");
......@@ -385,31 +411,33 @@ static int cpia_read_proc(char *page, char **start, off_t off,
1<<cam->params.exposure.gain, 1, 1);
if (cam->params.version.firmwareVersion == 1 &&
cam->params.version.firmwareRevision == 2)
/* 1-02 firmware limits fineExp to 127 */
tmp = 255;
/* 1-02 firmware limits fineExp/2 to 127 */
tmp = 254;
else
tmp = 511;
tmp = 510;
out += sprintf(out, "fine_exp: %8d %8d %8d %8d\n",
cam->params.exposure.fineExp*2, 0, tmp, 0);
if (cam->params.version.firmwareVersion == 1 &&
cam->params.version.firmwareRevision == 2)
/* 1-02 firmware limits coarseExpHi to 0 */
tmp = 255;
tmp = MAX_EXP_102;
else
tmp = 65535;
tmp = MAX_EXP;
out += sprintf(out, "coarse_exp: %8d %8d %8d"
" %8d\n", cam->params.exposure.coarseExpLo+
256*cam->params.exposure.coarseExpHi, 0, tmp, 185);
out += sprintf(out, "red_comp: %8d %8d %8d %8d\n",
cam->params.exposure.redComp, 220, 255, 220);
cam->params.exposure.redComp, COMP_RED, 255, COMP_RED);
out += sprintf(out, "green1_comp: %8d %8d %8d %8d\n",
cam->params.exposure.green1Comp, 214, 255, 214);
cam->params.exposure.green1Comp, COMP_GREEN1, 255,
COMP_GREEN1);
out += sprintf(out, "green2_comp: %8d %8d %8d %8d\n",
cam->params.exposure.green2Comp, 214, 255, 214);
cam->params.exposure.green2Comp, COMP_GREEN2, 255,
COMP_GREEN2);
out += sprintf(out, "blue_comp: %8d %8d %8d %8d\n",
cam->params.exposure.blueComp, 230, 255, 230);
cam->params.exposure.blueComp, COMP_BLUE, 255, COMP_BLUE);
out += sprintf(out, "apcor_gain1: %#8x %#8x %#8x %#8x\n",
cam->params.apcor.gain1, 0, 0xff, 0x1c);
......@@ -433,9 +461,14 @@ static int cpia_read_proc(char *page, char **start, off_t off,
out += sprintf(out, "mains_frequency: %8d %8d %8d %8d"
" only 50/60\n",
cam->mainsFreq ? 60 : 50, 50, 60, 50);
out += sprintf(out, "allowable_overexposure: %8d %8d %8d %8d\n",
cam->params.flickerControl.allowableOverExposure, 0,
255, 0);
if(cam->params.flickerControl.allowableOverExposure < 0)
out += sprintf(out, "allowable_overexposure: %4dauto auto %8d auto\n",
-cam->params.flickerControl.allowableOverExposure,
255);
else
out += sprintf(out, "allowable_overexposure: %8d auto %8d auto\n",
cam->params.flickerControl.allowableOverExposure,
255);
out += sprintf(out, "compression_mode: ");
switch(cam->params.compression.mode) {
case CPIA_COMPRESSION_NONE:
......@@ -454,7 +487,7 @@ static int cpia_read_proc(char *page, char **start, off_t off,
out += sprintf(out, " none,auto,manual auto\n");
out += sprintf(out, "decimation_enable: %8s %8s %8s %8s\n",
cam->params.compression.decimation ==
DECIMATION_ENAB ? "on":"off", "off", "off",
DECIMATION_ENAB ? "on":"off", "off", "on",
"off");
out += sprintf(out, "compression_target: %9s %9s %9s %9s\n",
cam->params.compressionTarget.frTargeting ==
......@@ -462,13 +495,13 @@ static int cpia_read_proc(char *page, char **start, off_t off,
"framerate":"quality",
"framerate", "quality", "quality");
out += sprintf(out, "target_framerate: %8d %8d %8d %8d\n",
cam->params.compressionTarget.targetFR, 0, 30, 7);
cam->params.compressionTarget.targetFR, 1, 30, 15);
out += sprintf(out, "target_quality: %8d %8d %8d %8d\n",
cam->params.compressionTarget.targetQ, 0, 255, 10);
cam->params.compressionTarget.targetQ, 1, 64, 5);
out += sprintf(out, "y_threshold: %8d %8d %8d %8d\n",
cam->params.yuvThreshold.yThreshold, 0, 31, 15);
cam->params.yuvThreshold.yThreshold, 0, 31, 6);
out += sprintf(out, "uv_threshold: %8d %8d %8d %8d\n",
cam->params.yuvThreshold.uvThreshold, 0, 31, 15);
cam->params.yuvThreshold.uvThreshold, 0, 31, 6);
out += sprintf(out, "hysteresis: %8d %8d %8d %8d\n",
cam->params.compressionParams.hysteresis, 0, 255, 3);
out += sprintf(out, "threshold_max: %8d %8d %8d %8d\n",
......@@ -511,6 +544,47 @@ static int cpia_read_proc(char *page, char **start, off_t off,
return len;
}
static int match(char *checkstr, char **buffer, unsigned long *count,
int *find_colon, int *err)
{
int ret, colon_found = 1;
int len = strlen(checkstr);
ret = (len <= *count && strncmp(*buffer, checkstr, len) == 0);
if (ret) {
*buffer += len;
*count -= len;
if (*find_colon) {
colon_found = 0;
while (*count && (**buffer == ' ' || **buffer == '\t' ||
(!colon_found && **buffer == ':'))) {
if (**buffer == ':')
colon_found = 1;
--*count;
++*buffer;
}
if (!*count || !colon_found)
*err = -EINVAL;
*find_colon = 0;
}
}
return ret;
}
static unsigned long int value(char **buffer, unsigned long *count, int *err)
{
char *p;
unsigned long int ret;
ret = simple_strtoul(*buffer, &p, 0);
if (p == *buffer)
*err = -EINVAL;
else {
*count -= p - *buffer;
*buffer = p;
}
return ret;
}
static int cpia_write_proc(struct file *file, const char *buf,
unsigned long count, void *data)
{
......@@ -565,44 +639,10 @@ static int cpia_write_proc(struct file *file, const char *buf,
memcpy(&new_params, &cam->params, sizeof(struct cam_params));
new_mains = cam->mainsFreq;
#define MATCH(x) \
({ \
int _len = strlen(x), _ret, _colon_found; \
_ret = (_len <= count && strncmp(buffer, x, _len) == 0); \
if (_ret) { \
buffer += _len; \
count -= _len; \
if (find_colon) { \
_colon_found = 0; \
while (count && (*buffer == ' ' || *buffer == '\t' || \
(!_colon_found && *buffer == ':'))) { \
if (*buffer == ':') \
_colon_found = 1; \
--count; \
++buffer; \
} \
if (!count || !_colon_found) \
retval = -EINVAL; \
find_colon = 0; \
} \
} \
_ret; \
})
#define MATCH(x) (match(x, &buffer, &count, &find_colon, &retval))
#define VALUE (value(&buffer,&count, &retval))
#define FIRMWARE_VERSION(x,y) (new_params.version.firmwareVersion == (x) && \
new_params.version.firmwareRevision == (y))
#define VALUE \
({ \
char *_p; \
unsigned long int _ret; \
_ret = simple_strtoul(buffer, &_p, 0); \
if (_p == buffer) \
retval = -EINVAL; \
else { \
count -= _p - buffer; \
buffer = _p; \
} \
_ret; \
})
retval = 0;
while (count && !retval) {
......@@ -618,6 +658,12 @@ static int cpia_write_proc(struct file *file, const char *buf,
retval = -EINVAL;
}
command_flags |= COMMAND_SETCOLOURPARAMS;
if(new_params.flickerControl.allowableOverExposure < 0)
new_params.flickerControl.allowableOverExposure =
-find_over_exposure(new_params.colourParams.brightness);
if(new_params.flickerControl.flickerMode != 0)
command_flags |= COMMAND_SETFLICKERCTRL;
} else if (MATCH("contrast")) {
if (!retval)
val = VALUE;
......@@ -686,6 +732,7 @@ static int cpia_write_proc(struct file *file, const char *buf,
command_flags |= COMMAND_SETFLICKERCTRL;
}
command_flags |= COMMAND_SETSENSORFPS;
cam->exposure_status = EXPOSURE_NORMAL;
} else if (MATCH("stream_start_line")) {
if (!retval)
val = VALUE;
......@@ -700,6 +747,24 @@ static int cpia_write_proc(struct file *file, const char *buf,
else
retval = -EINVAL;
}
} else if (MATCH("sub_sample")) {
if (!retval && MATCH("420"))
new_params.format.subSample = SUBSAMPLE_420;
else if (!retval && MATCH("422"))
new_params.format.subSample = SUBSAMPLE_422;
else
retval = -EINVAL;
command_flags |= COMMAND_SETFORMAT;
} else if (MATCH("yuv_order")) {
if (!retval && MATCH("YUYV"))
new_params.format.yuvOrder = YUVORDER_YUYV;
else if (!retval && MATCH("UYVY"))
new_params.format.yuvOrder = YUVORDER_UYVY;
else
retval = -EINVAL;
command_flags |= COMMAND_SETFORMAT;
} else if (MATCH("ecp_timing")) {
if (!retval && MATCH("normal"))
new_params.ecpTiming = 0;
......@@ -711,9 +776,9 @@ static int cpia_write_proc(struct file *file, const char *buf,
command_flags |= COMMAND_SETECPTIMING;
} else if (MATCH("color_balance_mode")) {
if (!retval && MATCH("manual"))
new_params.colourBalance.balanceModeIsAuto = 0;
new_params.colourBalance.balanceMode = 3;
else if (!retval && MATCH("auto"))
new_params.colourBalance.balanceModeIsAuto = 1;
new_params.colourBalance.balanceMode = 2;
else
retval = -EINVAL;
......@@ -723,9 +788,10 @@ static int cpia_write_proc(struct file *file, const char *buf,
val = VALUE;
if (!retval) {
if (val <= 212)
if (val <= 212) {
new_params.colourBalance.redGain = val;
else
new_params.colourBalance.balanceMode = 1;
} else
retval = -EINVAL;
}
command_flags |= COMMAND_SETCOLOURBALANCE;
......@@ -734,9 +800,10 @@ static int cpia_write_proc(struct file *file, const char *buf,
val = VALUE;
if (!retval) {
if (val <= 212)
if (val <= 212) {
new_params.colourBalance.greenGain = val;
else
new_params.colourBalance.balanceMode = 1;
} else
retval = -EINVAL;
}
command_flags |= COMMAND_SETCOLOURBALANCE;
......@@ -745,9 +812,10 @@ static int cpia_write_proc(struct file *file, const char *buf,
val = VALUE;
if (!retval) {
if (val <= 212)
if (val <= 212) {
new_params.colourBalance.blueGain = val;
else
new_params.colourBalance.balanceMode = 1;
} else
retval = -EINVAL;
}
command_flags |= COMMAND_SETCOLOURBALANCE;
......@@ -784,8 +852,9 @@ static int cpia_write_proc(struct file *file, const char *buf,
else if (!retval && MATCH("manual")) {
if (new_params.exposure.expMode == 2)
new_params.exposure.expMode = 3;
new_params.flickerControl.flickerMode = 0;
if(new_params.flickerControl.flickerMode != 0)
command_flags |= COMMAND_SETFLICKERCTRL;
new_params.flickerControl.flickerMode = 0;
} else
retval = -EINVAL;
......@@ -807,32 +876,24 @@ static int cpia_write_proc(struct file *file, const char *buf,
switch(val) {
case 1:
new_params.exposure.gain = 0;
new_params.exposure.expMode = 1;
new_params.flickerControl.flickerMode = 0;
command_flags |= COMMAND_SETFLICKERCTRL;
break;
case 2:
new_params.exposure.gain = 1;
new_params.exposure.expMode = 1;
new_params.flickerControl.flickerMode = 0;
command_flags |= COMMAND_SETFLICKERCTRL;
break;
case 4:
new_params.exposure.gain = 2;
new_params.exposure.expMode = 1;
new_params.flickerControl.flickerMode = 0;
command_flags |= COMMAND_SETFLICKERCTRL;
break;
case 8:
new_params.exposure.gain = 3;
new_params.exposure.expMode = 1;
new_params.flickerControl.flickerMode = 0;
command_flags |= COMMAND_SETFLICKERCTRL;
break;
default:
retval = -EINVAL;
break;
}
new_params.exposure.expMode = 1;
if(new_params.flickerControl.flickerMode != 0)
command_flags |= COMMAND_SETFLICKERCTRL;
new_params.flickerControl.flickerMode = 0;
command_flags |= COMMAND_SETEXPOSURE;
if (new_params.exposure.gain >
new_params.exposure.gainMode-1)
......@@ -840,16 +901,18 @@ static int cpia_write_proc(struct file *file, const char *buf,
}
} else if (MATCH("fine_exp")) {
if (!retval)
val = VALUE;
val = VALUE/2;
if (!retval) {
if (val < 256) {
/* 1-02 firmware limits fineExp to 127*/
/* 1-02 firmware limits fineExp/2 to 127*/
if (FIRMWARE_VERSION(1,2) && val > 127)
val = 127;
new_params.exposure.fineExp = val;
new_params.exposure.expMode = 1;
command_flags |= COMMAND_SETEXPOSURE;
if(new_params.flickerControl.flickerMode != 0)
command_flags |= COMMAND_SETFLICKERCTRL;
new_params.flickerControl.flickerMode = 0;
command_flags |= COMMAND_SETFLICKERCTRL;
} else
......@@ -860,17 +923,18 @@ static int cpia_write_proc(struct file *file, const char *buf,
val = VALUE;
if (!retval) {
if (val < 65536) {
/* 1-02 firmware limits
* coarseExp to 255 */
if (FIRMWARE_VERSION(1,2) && val > 255)
val = 255;
if (val <= MAX_EXP) {
if (FIRMWARE_VERSION(1,2) &&
val > MAX_EXP_102)
val = MAX_EXP_102;
new_params.exposure.coarseExpLo =
val & 0xff;
new_params.exposure.coarseExpHi =
val >> 8;
new_params.exposure.expMode = 1;
command_flags |= COMMAND_SETEXPOSURE;
if(new_params.flickerControl.flickerMode != 0)
command_flags |= COMMAND_SETFLICKERCTRL;
new_params.flickerControl.flickerMode = 0;
command_flags |= COMMAND_SETFLICKERCTRL;
} else
......@@ -881,8 +945,9 @@ static int cpia_write_proc(struct file *file, const char *buf,
val = VALUE;
if (!retval) {
if (val >= 220 && val <= 255) {
if (val >= COMP_RED && val <= 255) {
new_params.exposure.redComp = val;
new_params.exposure.compMode = 1;
command_flags |= COMMAND_SETEXPOSURE;
} else
retval = -EINVAL;
......@@ -892,8 +957,9 @@ static int cpia_write_proc(struct file *file, const char *buf,
val = VALUE;
if (!retval) {
if (val >= 214 && val <= 255) {
if (val >= COMP_GREEN1 && val <= 255) {
new_params.exposure.green1Comp = val;
new_params.exposure.compMode = 1;
command_flags |= COMMAND_SETEXPOSURE;
} else
retval = -EINVAL;
......@@ -903,8 +969,9 @@ static int cpia_write_proc(struct file *file, const char *buf,
val = VALUE;
if (!retval) {
if (val >= 214 && val <= 255) {
if (val >= COMP_GREEN2 && val <= 255) {
new_params.exposure.green2Comp = val;
new_params.exposure.compMode = 1;
command_flags |= COMMAND_SETEXPOSURE;
} else
retval = -EINVAL;
......@@ -914,8 +981,9 @@ static int cpia_write_proc(struct file *file, const char *buf,
val = VALUE;
if (!retval) {
if (val >= 230 && val <= 255) {
if (val >= COMP_BLUE && val <= 255) {
new_params.exposure.blueComp = val;
new_params.exposure.compMode = 1;
command_flags |= COMMAND_SETEXPOSURE;
} else
retval = -EINVAL;
......@@ -1010,12 +1078,10 @@ static int cpia_write_proc(struct file *file, const char *buf,
command_flags |= COMMAND_SETVLOFFSET;
} else if (MATCH("flicker_control")) {
if (!retval && MATCH("on")) {
new_params.flickerControl.flickerMode = 1;
new_params.exposure.expMode = 2;
command_flags |= COMMAND_SETEXPOSURE;
} else if (!retval && MATCH("off"))
new_params.flickerControl.flickerMode = 0;
else
set_flicker(&new_params, &command_flags, 1);
} else if (!retval && MATCH("off")) {
set_flicker(&new_params, &command_flags, 0);
} else
retval = -EINVAL;
command_flags |= COMMAND_SETFLICKERCTRL;
......@@ -1039,6 +1105,12 @@ static int cpia_write_proc(struct file *file, const char *buf,
} else
retval = -EINVAL;
} else if (MATCH("allowable_overexposure")) {
if (!retval && MATCH("auto")) {
new_params.flickerControl.allowableOverExposure =
-find_over_exposure(new_params.colourParams.brightness);
if(new_params.flickerControl.flickerMode != 0)
command_flags |= COMMAND_SETFLICKERCTRL;
} else {
if (!retval)
val = VALUE;
......@@ -1046,10 +1118,12 @@ static int cpia_write_proc(struct file *file, const char *buf,
if (val <= 0xff) {
new_params.flickerControl.
allowableOverExposure = val;
if(new_params.flickerControl.flickerMode != 0)
command_flags |= COMMAND_SETFLICKERCTRL;
} else
retval = -EINVAL;
}
}
} else if (MATCH("compression_mode")) {
if (!retval && MATCH("none"))
new_params.compression.mode =
......@@ -1067,6 +1141,8 @@ static int cpia_write_proc(struct file *file, const char *buf,
} else if (MATCH("decimation_enable")) {
if (!retval && MATCH("off"))
new_params.compression.decimation = 0;
else if (!retval && MATCH("on"))
new_params.compression.decimation = 1;
else
retval = -EINVAL;
......@@ -1086,16 +1162,23 @@ static int cpia_write_proc(struct file *file, const char *buf,
if (!retval)
val = VALUE;
if (!retval)
if (!retval) {
if(val > 0 && val <= 30)
new_params.compressionTarget.targetFR = val;
else
retval = -EINVAL;
}
command_flags |= COMMAND_SETCOMPRESSIONTARGET;
} else if (MATCH("target_quality")) {
if (!retval)
val = VALUE;
if (!retval)
if (!retval) {
if(val > 0 && val <= 64)
new_params.compressionTarget.targetQ = val;
else
retval = -EINVAL;
}
command_flags |= COMMAND_SETCOMPRESSIONTARGET;
} else if (MATCH("y_threshold")) {
if (!retval)
......@@ -1247,10 +1330,8 @@ static int cpia_write_proc(struct file *file, const char *buf,
}
}
#undef MATCH
#undef FIRMWARE_VERSION
#undef VALUE
#undef FIND_VALUE
#undef FIND_END
#undef FIRMWARE_VERSION
if (!retval) {
if (command_flags & COMMAND_SETCOLOURPARAMS) {
/* Adjust cam->vp to reflect these changes */
......@@ -1261,6 +1342,9 @@ static int cpia_write_proc(struct file *file, const char *buf,
cam->vp.colour =
new_params.colourParams.saturation*65535/100;
}
if((command_flags & COMMAND_SETEXPOSURE) &&
new_params.exposure.expMode == 2)
cam->exposure_status = EXPOSURE_NORMAL;
memcpy(&cam->params, &new_params, sizeof(struct cam_params));
cam->mainsFreq = new_mains;
......@@ -1294,11 +1378,11 @@ static void create_proc_cpia_cam(struct cam_data *cam)
ent->read_proc = cpia_read_proc;
ent->write_proc = cpia_write_proc;
/*
size of the proc entry is 3672 bytes for the standard webcam;
the extra features of the QX3 microscope add 188 bytes.
size of the proc entry is 3736 bytes for the standard webcam;
the extra features of the QX3 microscope add 189 bytes.
(we have not yet probed the camera to see which type it is).
*/
ent->size = 3672 + 188;
ent->size = 3736 + 189;
cam->proc_entry = ent;
}
......@@ -1324,10 +1408,12 @@ static void proc_cpia_create(void)
LOG("Unable to initialise /proc/cpia\n");
}
#ifdef MODULE
static void proc_cpia_destroy(void)
{
remove_proc_entry("cpia", 0);
}
#endif /*MODULE*/
#endif /* CONFIG_PROC_FS */
/* ----------------------- debug functions ---------------------- */
......@@ -1410,9 +1496,7 @@ static void set_vw_size(struct cam_data *cam)
cam->vw.height = 288;
cam->params.format.videoSize=VIDEOSIZE_CIF;
cam->params.roi.colStart=0;
cam->params.roi.colEnd=44;
cam->params.roi.rowStart=0;
cam->params.roi.rowEnd=72;
cam->params.streamStartLine = 120;
break;
case VIDEOSIZE_SIF:
......@@ -1420,9 +1504,7 @@ static void set_vw_size(struct cam_data *cam)
cam->vw.height = 240;
cam->params.format.videoSize=VIDEOSIZE_CIF;
cam->params.roi.colStart=2;
cam->params.roi.colEnd=42;
cam->params.roi.rowStart=6;
cam->params.roi.rowEnd=66;
cam->params.streamStartLine = 120;
break;
case VIDEOSIZE_288_216:
......@@ -1430,9 +1512,7 @@ static void set_vw_size(struct cam_data *cam)
cam->vw.height = 216;
cam->params.format.videoSize=VIDEOSIZE_CIF;
cam->params.roi.colStart=4;
cam->params.roi.colEnd=40;
cam->params.roi.rowStart=9;
cam->params.roi.rowEnd=63;
cam->params.streamStartLine = 120;
break;
case VIDEOSIZE_256_192:
......@@ -1440,9 +1520,7 @@ static void set_vw_size(struct cam_data *cam)
cam->vw.height = 192;
cam->params.format.videoSize=VIDEOSIZE_CIF;
cam->params.roi.colStart=6;
cam->params.roi.colEnd=38;
cam->params.roi.rowStart=12;
cam->params.roi.rowEnd=60;
cam->params.streamStartLine = 120;
break;
case VIDEOSIZE_224_168:
......@@ -1450,9 +1528,7 @@ static void set_vw_size(struct cam_data *cam)
cam->vw.height = 168;
cam->params.format.videoSize=VIDEOSIZE_CIF;
cam->params.roi.colStart=8;
cam->params.roi.colEnd=36;
cam->params.roi.rowStart=15;
cam->params.roi.rowEnd=57;
cam->params.streamStartLine = 120;
break;
case VIDEOSIZE_192_144:
......@@ -1460,9 +1536,7 @@ static void set_vw_size(struct cam_data *cam)
cam->vw.height = 144;
cam->params.format.videoSize=VIDEOSIZE_CIF;
cam->params.roi.colStart=10;
cam->params.roi.colEnd=34;
cam->params.roi.rowStart=18;
cam->params.roi.rowEnd=54;
cam->params.streamStartLine = 120;
break;
case VIDEOSIZE_QCIF:
......@@ -1470,9 +1544,7 @@ static void set_vw_size(struct cam_data *cam)
cam->vw.height = 144;
cam->params.format.videoSize=VIDEOSIZE_QCIF;
cam->params.roi.colStart=0;
cam->params.roi.colEnd=22;
cam->params.roi.rowStart=0;
cam->params.roi.rowEnd=36;
cam->params.streamStartLine = 60;
break;
case VIDEOSIZE_QSIF:
......@@ -1480,9 +1552,7 @@ static void set_vw_size(struct cam_data *cam)
cam->vw.height = 120;
cam->params.format.videoSize=VIDEOSIZE_QCIF;
cam->params.roi.colStart=1;
cam->params.roi.colEnd=21;
cam->params.roi.rowStart=3;
cam->params.roi.rowEnd=33;
cam->params.streamStartLine = 60;
break;
case VIDEOSIZE_128_96:
......@@ -1490,9 +1560,7 @@ static void set_vw_size(struct cam_data *cam)
cam->vw.height = 96;
cam->params.format.videoSize=VIDEOSIZE_QCIF;
cam->params.roi.colStart=3;
cam->params.roi.colEnd=19;
cam->params.roi.rowStart=6;
cam->params.roi.rowEnd=30;
cam->params.streamStartLine = 60;
break;
case VIDEOSIZE_88_72:
......@@ -1500,9 +1568,7 @@ static void set_vw_size(struct cam_data *cam)
cam->vw.height = 72;
cam->params.format.videoSize=VIDEOSIZE_QCIF;
cam->params.roi.colStart=5;
cam->params.roi.colEnd=16;
cam->params.roi.rowStart=9;
cam->params.roi.rowEnd=27;
cam->params.streamStartLine = 60;
break;
case VIDEOSIZE_64_48:
......@@ -1510,9 +1576,7 @@ static void set_vw_size(struct cam_data *cam)
cam->vw.height = 48;
cam->params.format.videoSize=VIDEOSIZE_QCIF;
cam->params.roi.colStart=7;
cam->params.roi.colEnd=15;
cam->params.roi.rowStart=12;
cam->params.roi.rowEnd=24;
cam->params.streamStartLine = 60;
break;
case VIDEOSIZE_48_48:
......@@ -1520,15 +1584,26 @@ static void set_vw_size(struct cam_data *cam)
cam->vw.height = 48;
cam->params.format.videoSize=VIDEOSIZE_QCIF;
cam->params.roi.colStart=8;
cam->params.roi.colEnd=14;
cam->params.roi.rowStart=6;
cam->params.roi.rowEnd=30;
cam->params.streamStartLine = 60;
break;
default:
LOG("bad videosize value: %d\n", cam->video_size);
return;
}
if(cam->vc.width == 0)
cam->vc.width = cam->vw.width;
if(cam->vc.height == 0)
cam->vc.height = cam->vw.height;
cam->params.roi.colStart += cam->vc.x >> 3;
cam->params.roi.colEnd = cam->params.roi.colStart +
(cam->vc.width >> 3);
cam->params.roi.rowStart += cam->vc.y >> 2;
cam->params.roi.rowEnd = cam->params.roi.rowStart +
(cam->vc.height >> 2);
return;
}
......@@ -1668,29 +1743,6 @@ static int do_command(struct cam_data *cam, u16 command, u8 a, u8 b, u8 c, u8 d)
cam->params.exposure.green1Comp = data[5];
cam->params.exposure.green2Comp = data[6];
cam->params.exposure.blueComp = data[7];
/* If the *Comp parameters are wacko, generate
* a warning, and reset them back to default
* values. - rich@annexia.org
*/
if (cam->params.exposure.redComp < 220 ||
cam->params.exposure.redComp > 255 ||
cam->params.exposure.green1Comp < 214 ||
cam->params.exposure.green1Comp > 255 ||
cam->params.exposure.green2Comp < 214 ||
cam->params.exposure.green2Comp > 255 ||
cam->params.exposure.blueComp < 230 ||
cam->params.exposure.blueComp > 255)
{
printk (KERN_WARNING "*_comp parameters have gone AWOL (%d/%d/%d/%d) - reseting them\n",
cam->params.exposure.redComp,
cam->params.exposure.green1Comp,
cam->params.exposure.green2Comp,
cam->params.exposure.blueComp);
cam->params.exposure.redComp = 220;
cam->params.exposure.green1Comp = 214;
cam->params.exposure.green2Comp = 214;
cam->params.exposure.blueComp = 230;
}
up(&cam->param_lock);
break;
......@@ -1756,6 +1808,122 @@ static int do_command_extended(struct cam_data *cam, u16 command,
**********************************************************************/
#define LIMIT(x) ((((x)>0xffffff)?0xff0000:(((x)<=0xffff)?0:(x)&0xff0000))>>16)
static int convert420(unsigned char *yuv, unsigned char *rgb, int out_fmt,
int linesize, int mmap_kludge)
{
int y, u, v, r, g, b, y1;
/* Odd lines use the same u and v as the previous line.
* Because of compression, it is necessary to get this
* information from the decoded image. */
switch(out_fmt) {
case VIDEO_PALETTE_RGB555:
y = (*yuv++ - 16) * 76310;
y1 = (*yuv - 16) * 76310;
r = ((*(rgb+1-linesize)) & 0x7c) << 1;
g = ((*(rgb-linesize)) & 0xe0) >> 4 |
((*(rgb+1-linesize)) & 0x03) << 6;
b = ((*(rgb-linesize)) & 0x1f) << 3;
u = (-53294 * r - 104635 * g + 157929 * b) / 5756495;
v = (157968 * r - 132278 * g - 25690 * b) / 5366159;
r = 104635 * v;
g = -25690 * u - 53294 * v;
b = 132278 * u;
*rgb++ = ((LIMIT(g+y) & 0xf8) << 2) | (LIMIT(b+y) >> 3);
*rgb++ = ((LIMIT(r+y) & 0xf8) >> 1) | (LIMIT(g+y) >> 6);
*rgb++ = ((LIMIT(g+y1) & 0xf8) << 2) | (LIMIT(b+y1) >> 3);
*rgb = ((LIMIT(r+y1) & 0xf8) >> 1) | (LIMIT(g+y1) >> 6);
return 4;
case VIDEO_PALETTE_RGB565:
y = (*yuv++ - 16) * 76310;
y1 = (*yuv - 16) * 76310;
r = (*(rgb+1-linesize)) & 0xf8;
g = ((*(rgb-linesize)) & 0xe0) >> 3 |
((*(rgb+1-linesize)) & 0x07) << 5;
b = ((*(rgb-linesize)) & 0x1f) << 3;
u = (-53294 * r - 104635 * g + 157929 * b) / 5756495;
v = (157968 * r - 132278 * g - 25690 * b) / 5366159;
r = 104635 * v;
g = -25690 * u - 53294 * v;
b = 132278 * u;
*rgb++ = ((LIMIT(g+y) & 0xfc) << 3) | (LIMIT(b+y) >> 3);
*rgb++ = (LIMIT(r+y) & 0xf8) | (LIMIT(g+y) >> 5);
*rgb++ = ((LIMIT(g+y1) & 0xfc) << 3) | (LIMIT(b+y1) >> 3);
*rgb = (LIMIT(r+y1) & 0xf8) | (LIMIT(g+y1) >> 5);
return 4;
break;
case VIDEO_PALETTE_RGB24:
case VIDEO_PALETTE_RGB32:
y = (*yuv++ - 16) * 76310;
y1 = (*yuv - 16) * 76310;
if (mmap_kludge) {
r = *(rgb+2-linesize);
g = *(rgb+1-linesize);
b = *(rgb-linesize);
} else {
r = *(rgb-linesize);
g = *(rgb+1-linesize);
b = *(rgb+2-linesize);
}
u = (-53294 * r - 104635 * g + 157929 * b) / 5756495;
v = (157968 * r - 132278 * g - 25690 * b) / 5366159;
r = 104635 * v;
g = -25690 * u + -53294 * v;
b = 132278 * u;
if (mmap_kludge) {
*rgb++ = LIMIT(b+y);
*rgb++ = LIMIT(g+y);
*rgb++ = LIMIT(r+y);
if(out_fmt == VIDEO_PALETTE_RGB32)
rgb++;
*rgb++ = LIMIT(b+y1);
*rgb++ = LIMIT(g+y1);
*rgb = LIMIT(r+y1);
} else {
*rgb++ = LIMIT(r+y);
*rgb++ = LIMIT(g+y);
*rgb++ = LIMIT(b+y);
if(out_fmt == VIDEO_PALETTE_RGB32)
rgb++;
*rgb++ = LIMIT(r+y1);
*rgb++ = LIMIT(g+y1);
*rgb = LIMIT(b+y1);
}
if(out_fmt == VIDEO_PALETTE_RGB32)
return 8;
return 6;
case VIDEO_PALETTE_YUV422:
case VIDEO_PALETTE_YUYV:
y = *yuv++;
u = *(rgb+1-linesize);
y1 = *yuv;
v = *(rgb+3-linesize);
*rgb++ = y;
*rgb++ = u;
*rgb++ = y1;
*rgb = v;
return 4;
case VIDEO_PALETTE_UYVY:
u = *(rgb-linesize);
y = *yuv++;
v = *(rgb+2-linesize);
y1 = *yuv;
*rgb++ = u;
*rgb++ = y;
*rgb++ = v;
*rgb = y1;
return 4;
case VIDEO_PALETTE_GREY:
*rgb++ = *yuv++;
*rgb = *yuv;
return 2;
default:
DBG("Empty: %d\n", out_fmt);
return 0;
}
}
static int yuvconvert(unsigned char *yuv, unsigned char *rgb, int out_fmt,
int in_uyvy, int mmap_kludge)
{
......@@ -1887,7 +2055,8 @@ static int skipcount(int count, int fmt)
static int parse_picture(struct cam_data *cam, int size)
{
u8 *obuf, *ibuf, *end_obuf;
int ll, in_uyvy, compressed, origsize, out_fmt;
int ll, in_uyvy, compressed, decimation, even_line, origsize, out_fmt;
int rows, cols, linesize, subsample_422;
/* make sure params don't change while we are decoding */
down(&cam->param_lock);
......@@ -1910,11 +2079,12 @@ static int parse_picture(struct cam_data *cam, int size)
return -1;
}
if (ibuf[17] != SUBSAMPLE_422) {
if (ibuf[17] != SUBSAMPLE_420 && ibuf[17] != SUBSAMPLE_422) {
LOG("illegal subtype %d\n",ibuf[17]);
up(&cam->param_lock);
return -1;
}
subsample_422 = ibuf[17] == SUBSAMPLE_422;
if (ibuf[18] != YUVORDER_YUYV && ibuf[18] != YUVORDER_UYVY) {
LOG("illegal yuvorder %d\n",ibuf[18]);
......@@ -1923,8 +2093,6 @@ static int parse_picture(struct cam_data *cam, int size)
}
in_uyvy = ibuf[18] == YUVORDER_UYVY;
#if 0
/* FIXME: ROI mismatch occurs when switching capture sizes */
if ((ibuf[24] != cam->params.roi.colStart) ||
(ibuf[25] != cam->params.roi.colEnd) ||
(ibuf[26] != cam->params.roi.rowStart) ||
......@@ -1933,7 +2101,9 @@ static int parse_picture(struct cam_data *cam, int size)
up(&cam->param_lock);
return -1;
}
#endif
cols = 8*(ibuf[25] - ibuf[24]);
rows = 4*(ibuf[27] - ibuf[26]);
if ((ibuf[28] != NOT_COMPRESSED) && (ibuf[28] != COMPRESSED)) {
LOG("illegal compression %d\n",ibuf[28]);
......@@ -1942,11 +2112,12 @@ static int parse_picture(struct cam_data *cam, int size)
}
compressed = (ibuf[28] == COMPRESSED);
if (ibuf[29] != NO_DECIMATION) {
LOG("decimation not supported\n");
if (ibuf[29] != NO_DECIMATION && ibuf[29] != DECIMATION_ENAB) {
LOG("illegal decimation %d\n",ibuf[29]);
up(&cam->param_lock);
return -1;
}
decimation = (ibuf[29] == DECIMATION_ENAB);
cam->params.yuvThreshold.yThreshold = ibuf[30];
cam->params.yuvThreshold.uvThreshold = ibuf[31];
......@@ -1961,10 +2132,12 @@ static int parse_picture(struct cam_data *cam, int size)
cam->fps = ibuf[41];
up(&cam->param_lock);
linesize = skipcount(cols, out_fmt);
ibuf += FRAME_HEADER_SIZE;
size -= FRAME_HEADER_SIZE;
ll = ibuf[0] | (ibuf[1] << 8);
ibuf += 2;
even_line = 1;
while (size > 0) {
size -= (ll+2);
......@@ -1975,16 +2148,24 @@ static int parse_picture(struct cam_data *cam, int size)
while (ll > 1) {
if (!compressed || (compressed && !(*ibuf & 1))) {
if(subsample_422 || even_line) {
obuf += yuvconvert(ibuf, obuf, out_fmt,
in_uyvy, cam->mmap_kludge);
ibuf += 4;
ll -= 4;
} else {
/* SUBSAMPLE_420 on an odd line */
obuf += convert420(ibuf, obuf,
out_fmt, linesize,
cam->mmap_kludge);
ibuf += 2;
ll -= 2;
}
} else {
/*skip compressed interval from previous frame*/
int skipsize = skipcount(*ibuf >> 1, out_fmt);
obuf += skipsize;
obuf += skipcount(*ibuf >> 1, out_fmt);
if (obuf > end_obuf) {
LOG("Insufficient data in buffer\n");
LOG("Insufficient buffer size\n");
return -1;
}
++ibuf;
......@@ -1998,7 +2179,7 @@ static int parse_picture(struct cam_data *cam, int size)
return -1;
}
ibuf++; /* skip over EOL */
++ibuf; /* skip over EOL */
if ((size > 3) && (ibuf[0] == EOI) && (ibuf[1] == EOI) &&
(ibuf[2] == EOI) && (ibuf[3] == EOI)) {
......@@ -2006,10 +2187,17 @@ static int parse_picture(struct cam_data *cam, int size)
break;
}
if(decimation) {
/* skip the odd lines for now */
obuf += linesize;
}
if (size > 1) {
ll = ibuf[0] | (ibuf[1] << 8);
ibuf += 2; /* skip over line length */
}
if(!decimation)
even_line = !even_line;
} else {
LOG("line length was not 1 but %d after %d/%d bytes\n",
ll, origsize-size, origsize);
......@@ -2017,6 +2205,25 @@ static int parse_picture(struct cam_data *cam, int size)
}
}
if(decimation) {
/* interpolate odd rows */
int i, j;
u8 *prev, *next;
prev = cam->decompressed_frame.data;
obuf = prev+linesize;
next = obuf+linesize;
for(i=1; i<rows-1; i+=2) {
for(j=0; j<linesize; ++j) {
*obuf++ = ((int)*prev++ + *next++) / 2;
}
prev += linesize;
obuf += linesize;
next += linesize;
}
/* last row is odd, just copy previous row */
memcpy(obuf, prev, linesize);
}
cam->decompressed_frame.count = obuf-cam->decompressed_frame.data;
return cam->decompressed_frame.count;
......@@ -2029,6 +2236,38 @@ static inline int init_stream_cap(struct cam_data *cam)
0, cam->params.streamStartLine, 0, 0);
}
/* find_over_exposure
* Finds a suitable value of OverExposure for use with SetFlickerCtrl
* Some calculation is required because this value changes with the brightness
* set with SetColourParameters
*
* Parameters: Brightness - last brightness value set with SetColourParameters
*
* Returns: OverExposure value to use with SetFlickerCtrl
*/
#define FLICKER_MAX_EXPOSURE 250
#define FLICKER_ALLOWABLE_OVER_EXPOSURE 146
#define FLICKER_BRIGHTNESS_CONSTANT 59
static int find_over_exposure(int brightness)
{
int MaxAllowableOverExposure, OverExposure;
MaxAllowableOverExposure = FLICKER_MAX_EXPOSURE - brightness -
FLICKER_BRIGHTNESS_CONSTANT;
if (MaxAllowableOverExposure < FLICKER_ALLOWABLE_OVER_EXPOSURE) {
OverExposure = MaxAllowableOverExposure;
} else {
OverExposure = FLICKER_ALLOWABLE_OVER_EXPOSURE;
}
return OverExposure;
}
#undef FLICKER_MAX_EXPOSURE
#undef FLICKER_ALLOWABLE_OVER_EXPOSURE
#undef FLICKER_BRIGHTNESS_CONSTANT
/* update various camera modes and settings */
static void dispatch_commands(struct cam_data *cam)
{
......@@ -2039,17 +2278,6 @@ static void dispatch_commands(struct cam_data *cam)
}
DEB_BYTE(cam->cmd_queue);
DEB_BYTE(cam->cmd_queue>>8);
if (cam->cmd_queue & COMMAND_SETCOLOURPARAMS)
do_command(cam, CPIA_COMMAND_SetColourParams,
cam->params.colourParams.brightness,
cam->params.colourParams.contrast,
cam->params.colourParams.saturation, 0);
if (cam->cmd_queue & COMMAND_SETCOMPRESSION)
do_command(cam, CPIA_COMMAND_SetCompression,
cam->params.compression.mode,
cam->params.compression.decimation, 0, 0);
if (cam->cmd_queue & COMMAND_SETFORMAT) {
do_command(cam, CPIA_COMMAND_SetFormat,
cam->params.format.videoSize,
......@@ -2061,37 +2289,30 @@ static void dispatch_commands(struct cam_data *cam)
cam->first_frame = 1;
}
if (cam->cmd_queue & COMMAND_SETCOMPRESSIONTARGET)
do_command(cam, CPIA_COMMAND_SetCompressionTarget,
cam->params.compressionTarget.frTargeting,
cam->params.compressionTarget.targetFR,
cam->params.compressionTarget.targetQ, 0);
if (cam->cmd_queue & COMMAND_SETYUVTHRESH)
do_command(cam, CPIA_COMMAND_SetYUVThresh,
cam->params.yuvThreshold.yThreshold,
cam->params.yuvThreshold.uvThreshold, 0, 0);
if (cam->cmd_queue & COMMAND_SETCOLOURPARAMS)
do_command(cam, CPIA_COMMAND_SetColourParams,
cam->params.colourParams.brightness,
cam->params.colourParams.contrast,
cam->params.colourParams.saturation, 0);
if (cam->cmd_queue & COMMAND_SETECPTIMING)
do_command(cam, CPIA_COMMAND_SetECPTiming,
cam->params.ecpTiming, 0, 0, 0);
if (cam->cmd_queue & COMMAND_SETAPCOR)
do_command(cam, CPIA_COMMAND_SetApcor,
cam->params.apcor.gain1,
cam->params.apcor.gain2,
cam->params.apcor.gain4,
cam->params.apcor.gain8);
if (cam->cmd_queue & COMMAND_SETCOMPRESSIONPARAMS)
do_command_extended(cam, CPIA_COMMAND_SetCompressionParams,
0, 0, 0, 0,
cam->params.compressionParams.hysteresis,
cam->params.compressionParams.threshMax,
cam->params.compressionParams.smallStep,
cam->params.compressionParams.largeStep,
cam->params.compressionParams.decimationHysteresis,
cam->params.compressionParams.frDiffStepThresh,
cam->params.compressionParams.qDiffStepThresh,
cam->params.compressionParams.decimationThreshMod);
if (cam->cmd_queue & COMMAND_SETVLOFFSET)
do_command(cam, CPIA_COMMAND_SetVLOffset,
cam->params.vlOffset.gain1,
cam->params.vlOffset.gain2,
cam->params.vlOffset.gain4,
cam->params.vlOffset.gain8);
if (cam->cmd_queue & COMMAND_SETEXPOSURE)
if (cam->cmd_queue & COMMAND_SETEXPOSURE) {
do_command_extended(cam, CPIA_COMMAND_SetExposure,
cam->params.exposure.gainMode,
cam->params.exposure.expMode,
1,
cam->params.exposure.compMode,
cam->params.exposure.centreWeight,
cam->params.exposure.gain,
......@@ -2102,12 +2323,21 @@ static void dispatch_commands(struct cam_data *cam)
cam->params.exposure.green1Comp,
cam->params.exposure.green2Comp,
cam->params.exposure.blueComp);
if(cam->params.exposure.expMode != 1) {
do_command_extended(cam, CPIA_COMMAND_SetExposure,
0,
cam->params.exposure.expMode,
0, 0,
cam->params.exposure.gain,
cam->params.exposure.fineExp,
cam->params.exposure.coarseExpLo,
cam->params.exposure.coarseExpHi,
0, 0, 0, 0);
}
}
if (cam->cmd_queue & COMMAND_SETCOLOURBALANCE) {
if (cam->params.colourBalance.balanceModeIsAuto) {
do_command(cam, CPIA_COMMAND_SetColourBalance,
2, 0, 0, 0);
} else {
if (cam->params.colourBalance.balanceMode == 1) {
do_command(cam, CPIA_COMMAND_SetColourBalance,
1,
cam->params.colourBalance.redGain,
......@@ -2116,32 +2346,59 @@ static void dispatch_commands(struct cam_data *cam)
do_command(cam, CPIA_COMMAND_SetColourBalance,
3, 0, 0, 0);
}
if (cam->params.colourBalance.balanceMode == 2) {
do_command(cam, CPIA_COMMAND_SetColourBalance,
2, 0, 0, 0);
}
if (cam->params.colourBalance.balanceMode == 3) {
do_command(cam, CPIA_COMMAND_SetColourBalance,
3, 0, 0, 0);
}
}
if (cam->cmd_queue & COMMAND_SETCOMPRESSIONTARGET)
do_command(cam, CPIA_COMMAND_SetCompressionTarget,
cam->params.compressionTarget.frTargeting,
cam->params.compressionTarget.targetFR,
cam->params.compressionTarget.targetQ, 0);
if (cam->cmd_queue & COMMAND_SETYUVTHRESH)
do_command(cam, CPIA_COMMAND_SetYUVThresh,
cam->params.yuvThreshold.yThreshold,
cam->params.yuvThreshold.uvThreshold, 0, 0);
if (cam->cmd_queue & COMMAND_SETCOMPRESSIONPARAMS)
do_command_extended(cam, CPIA_COMMAND_SetCompressionParams,
0, 0, 0, 0,
cam->params.compressionParams.hysteresis,
cam->params.compressionParams.threshMax,
cam->params.compressionParams.smallStep,
cam->params.compressionParams.largeStep,
cam->params.compressionParams.decimationHysteresis,
cam->params.compressionParams.frDiffStepThresh,
cam->params.compressionParams.qDiffStepThresh,
cam->params.compressionParams.decimationThreshMod);
if (cam->cmd_queue & COMMAND_SETCOMPRESSION)
do_command(cam, CPIA_COMMAND_SetCompression,
cam->params.compression.mode,
cam->params.compression.decimation, 0, 0);
if (cam->cmd_queue & COMMAND_SETSENSORFPS)
do_command(cam, CPIA_COMMAND_SetSensorFPS,
cam->params.sensorFps.divisor,
cam->params.sensorFps.baserate, 0, 0);
if (cam->cmd_queue & COMMAND_SETAPCOR)
do_command(cam, CPIA_COMMAND_SetApcor,
cam->params.apcor.gain1,
cam->params.apcor.gain2,
cam->params.apcor.gain4,
cam->params.apcor.gain8);
if (cam->cmd_queue & COMMAND_SETFLICKERCTRL)
do_command(cam, CPIA_COMMAND_SetFlickerCtrl,
cam->params.flickerControl.flickerMode,
cam->params.flickerControl.coarseJump,
cam->params.flickerControl.allowableOverExposure, 0);
abs(cam->params.flickerControl.allowableOverExposure),
0);
if (cam->cmd_queue & COMMAND_SETVLOFFSET)
do_command(cam, CPIA_COMMAND_SetVLOffset,
cam->params.vlOffset.gain1,
cam->params.vlOffset.gain2,
cam->params.vlOffset.gain4,
cam->params.vlOffset.gain8);
if (cam->cmd_queue & COMMAND_SETECPTIMING)
do_command(cam, CPIA_COMMAND_SetECPTiming,
cam->params.ecpTiming, 0, 0, 0);
if (cam->cmd_queue & COMMAND_PAUSE)
do_command(cam, CPIA_COMMAND_EndStreamCap, 0, 0, 0, 0);
......@@ -2149,20 +2406,416 @@ static void dispatch_commands(struct cam_data *cam)
if (cam->cmd_queue & COMMAND_RESUME)
init_stream_cap(cam);
if (cam->cmd_queue & COMMAND_SETLIGHTS && cam->params.qx3.qx3_detected) {
if (cam->cmd_queue & COMMAND_SETLIGHTS && cam->params.qx3.qx3_detected)
{
int p1 = (cam->params.qx3.bottomlight == 0) << 1;
int p2 = (cam->params.qx3.toplight == 0) << 3;
do_command(cam, CPIA_COMMAND_WriteVCReg, 0x90, 0x8F, 0x50, 0);
do_command(cam, CPIA_COMMAND_WriteMCPort, 2, 0, (p1|p2|0xE0), 0);
}
up(&cam->param_lock);
cam->cmd_queue = COMMAND_NONE;
up(&cam->param_lock);
return;
}
static void set_flicker(struct cam_params *params, volatile u32 *command_flags,
int on)
{
/* Everything in here is from the Windows driver */
#define FIRMWARE_VERSION(x,y) (params->version.firmwareVersion == (x) && \
params->version.firmwareRevision == (y))
/* define for compgain calculation */
#define COMPGAIN(base, curexp, newexp) \
(u8) ((((float) base - 128.0) * ((float) curexp / (float) newexp)) + 128.5)
#define EXP_FROM_COMP(basecomp, curcomp, curexp) \
(u16)((float)curexp * (float)(u8)(curcomp + 128) / (float)(u8)(basecomp - 128))
int currentexp = params->exposure.coarseExpLo +
params->exposure.coarseExpHi*256;
int startexp;
if (on) {
int cj = params->flickerControl.coarseJump;
params->flickerControl.flickerMode = 1;
params->flickerControl.disabled = 0;
if(params->exposure.expMode != 2)
*command_flags |= COMMAND_SETEXPOSURE;
params->exposure.expMode = 2;
currentexp = currentexp << params->exposure.gain;
params->exposure.gain = 0;
/* round down current exposure to nearest value */
startexp = (currentexp + ROUND_UP_EXP_FOR_FLICKER) / cj;
if(startexp < 1)
startexp = 1;
startexp = (startexp * cj) - 1;
if(FIRMWARE_VERSION(1,2))
while(startexp > MAX_EXP_102)
startexp -= cj;
else
while(startexp > MAX_EXP)
startexp -= cj;
params->exposure.coarseExpLo = startexp & 0xff;
params->exposure.coarseExpHi = startexp >> 8;
if (currentexp > startexp) {
if (currentexp > (2 * startexp))
currentexp = 2 * startexp;
params->exposure.redComp = COMPGAIN (COMP_RED, currentexp, startexp);
params->exposure.green1Comp = COMPGAIN (COMP_GREEN1, currentexp, startexp);
params->exposure.green2Comp = COMPGAIN (COMP_GREEN2, currentexp, startexp);
params->exposure.blueComp = COMPGAIN (COMP_BLUE, currentexp, startexp);
} else {
params->exposure.redComp = COMP_RED;
params->exposure.green1Comp = COMP_GREEN1;
params->exposure.green2Comp = COMP_GREEN2;
params->exposure.blueComp = COMP_BLUE;
}
if(FIRMWARE_VERSION(1,2))
params->exposure.compMode = 0;
else
params->exposure.compMode = 1;
params->apcor.gain1 = 0x18;
params->apcor.gain2 = 0x18;
params->apcor.gain4 = 0x16;
params->apcor.gain8 = 0x14;
*command_flags |= COMMAND_SETAPCOR;
} else {
params->flickerControl.flickerMode = 0;
params->flickerControl.disabled = 1;
/* Coarse = average of equivalent coarse for each comp channel */
startexp = EXP_FROM_COMP(COMP_RED, params->exposure.redComp, currentexp);
startexp += EXP_FROM_COMP(COMP_GREEN1, params->exposure.green1Comp, currentexp);
startexp += EXP_FROM_COMP(COMP_GREEN2, params->exposure.green2Comp, currentexp);
startexp += EXP_FROM_COMP(COMP_BLUE, params->exposure.blueComp, currentexp);
startexp = startexp >> 2;
while(startexp > MAX_EXP &&
params->exposure.gain < params->exposure.gainMode-1) {
startexp = startexp >> 1;
++params->exposure.gain;
}
if(FIRMWARE_VERSION(1,2) && startexp > MAX_EXP_102)
startexp = MAX_EXP_102;
if(startexp > MAX_EXP)
startexp = MAX_EXP;
params->exposure.coarseExpLo = startexp&0xff;
params->exposure.coarseExpHi = startexp >> 8;
params->exposure.redComp = COMP_RED;
params->exposure.green1Comp = COMP_GREEN1;
params->exposure.green2Comp = COMP_GREEN2;
params->exposure.blueComp = COMP_BLUE;
params->exposure.compMode = 1;
*command_flags |= COMMAND_SETEXPOSURE;
params->apcor.gain1 = 0x18;
params->apcor.gain2 = 0x16;
params->apcor.gain4 = 0x24;
params->apcor.gain8 = 0x34;
*command_flags |= COMMAND_SETAPCOR;
}
params->vlOffset.gain1 = 20;
params->vlOffset.gain2 = 24;
params->vlOffset.gain4 = 26;
params->vlOffset.gain8 = 26;
*command_flags |= COMMAND_SETVLOFFSET;
#undef FIRMWARE_VERSION
#undef EXP_FROM_COMP
#undef COMPGAIN
}
#define FIRMWARE_VERSION(x,y) (cam->params.version.firmwareVersion == (x) && \
cam->params.version.firmwareRevision == (y))
/* monitor the exposure and adjust the sensor frame rate if needed */
static void monitor_exposure(struct cam_data *cam)
{
u8 exp_acc, bcomp, gain, coarseL, cmd[8], data[8];
int retval, light_exp, dark_exp, very_dark_exp;
int old_exposure, new_exposure, framerate;
/* get necessary stats and register settings from camera */
/* do_command can't handle this, so do it ourselves */
cmd[0] = CPIA_COMMAND_ReadVPRegs>>8;
cmd[1] = CPIA_COMMAND_ReadVPRegs&0xff;
cmd[2] = 30;
cmd[3] = 4;
cmd[4] = 9;
cmd[5] = 8;
cmd[6] = 8;
cmd[7] = 0;
retval = cam->ops->transferCmd(cam->lowlevel_data, cmd, data);
if (retval) {
LOG("ReadVPRegs(30,4,9,8) - failed, retval=%d\n",
retval);
return;
}
exp_acc = data[0];
bcomp = data[1];
gain = data[2];
coarseL = data[3];
down(&cam->param_lock);
light_exp = cam->params.colourParams.brightness +
TC - 50 + EXP_ACC_LIGHT;
if(light_exp > 255)
light_exp = 255;
dark_exp = cam->params.colourParams.brightness +
TC - 50 - EXP_ACC_DARK;
if(dark_exp < 0)
dark_exp = 0;
very_dark_exp = dark_exp/2;
old_exposure = cam->params.exposure.coarseExpHi * 256 +
cam->params.exposure.coarseExpLo;
if(!cam->params.flickerControl.disabled) {
/* Flicker control on */
int max_comp = FIRMWARE_VERSION(1,2) ? MAX_COMP : HIGH_COMP_102;
bcomp += 128; /* decode */
if(bcomp >= max_comp && exp_acc < dark_exp) {
/* dark */
if(exp_acc < very_dark_exp) {
/* very dark */
if(cam->exposure_status == EXPOSURE_VERY_DARK)
++cam->exposure_count;
else {
cam->exposure_status = EXPOSURE_VERY_DARK;
cam->exposure_count = 1;
}
} else {
/* just dark */
if(cam->exposure_status == EXPOSURE_DARK)
++cam->exposure_count;
else {
cam->exposure_status = EXPOSURE_DARK;
cam->exposure_count = 1;
}
}
} else if(old_exposure <= LOW_EXP || exp_acc > light_exp) {
/* light */
if(old_exposure <= VERY_LOW_EXP) {
/* very light */
if(cam->exposure_status == EXPOSURE_VERY_LIGHT)
++cam->exposure_count;
else {
cam->exposure_status = EXPOSURE_VERY_LIGHT;
cam->exposure_count = 1;
}
} else {
/* just light */
if(cam->exposure_status == EXPOSURE_LIGHT)
++cam->exposure_count;
else {
cam->exposure_status = EXPOSURE_LIGHT;
cam->exposure_count = 1;
}
}
} else {
/* not dark or light */
cam->exposure_status = EXPOSURE_NORMAL;
}
} else {
/* Flicker control off */
if(old_exposure >= MAX_EXP && exp_acc < dark_exp) {
/* dark */
if(exp_acc < very_dark_exp) {
/* very dark */
if(cam->exposure_status == EXPOSURE_VERY_DARK)
++cam->exposure_count;
else {
cam->exposure_status = EXPOSURE_VERY_DARK;
cam->exposure_count = 1;
}
} else {
/* just dark */
if(cam->exposure_status == EXPOSURE_DARK)
++cam->exposure_count;
else {
cam->exposure_status = EXPOSURE_DARK;
cam->exposure_count = 1;
}
}
} else if(old_exposure <= LOW_EXP || exp_acc > light_exp) {
/* light */
if(old_exposure <= VERY_LOW_EXP) {
/* very light */
if(cam->exposure_status == EXPOSURE_VERY_LIGHT)
++cam->exposure_count;
else {
cam->exposure_status = EXPOSURE_VERY_LIGHT;
cam->exposure_count = 1;
}
} else {
/* just light */
if(cam->exposure_status == EXPOSURE_LIGHT)
++cam->exposure_count;
else {
cam->exposure_status = EXPOSURE_LIGHT;
cam->exposure_count = 1;
}
}
} else {
/* not dark or light */
cam->exposure_status = EXPOSURE_NORMAL;
}
}
framerate = cam->fps;
if(framerate > 30 || framerate < 1)
framerate = 1;
if(!cam->params.flickerControl.disabled) {
/* Flicker control on */
if((cam->exposure_status == EXPOSURE_VERY_DARK ||
cam->exposure_status == EXPOSURE_DARK) &&
cam->exposure_count >= DARK_TIME*framerate &&
cam->params.sensorFps.divisor < 3) {
/* dark for too long */
++cam->params.sensorFps.divisor;
cam->cmd_queue |= COMMAND_SETSENSORFPS;
cam->params.flickerControl.coarseJump =
flicker_jumps[cam->mainsFreq]
[cam->params.sensorFps.baserate]
[cam->params.sensorFps.divisor];
cam->cmd_queue |= COMMAND_SETFLICKERCTRL;
new_exposure = cam->params.flickerControl.coarseJump-1;
while(new_exposure < old_exposure/2)
new_exposure += cam->params.flickerControl.coarseJump;
cam->params.exposure.coarseExpLo = new_exposure & 0xff;
cam->params.exposure.coarseExpHi = new_exposure >> 8;
cam->cmd_queue |= COMMAND_SETEXPOSURE;
cam->exposure_status = EXPOSURE_NORMAL;
LOG("Automatically decreasing sensor_fps\n");
} else if((cam->exposure_status == EXPOSURE_VERY_LIGHT ||
cam->exposure_status == EXPOSURE_LIGHT) &&
cam->exposure_count >= LIGHT_TIME*framerate &&
cam->params.sensorFps.divisor > 0) {
/* light for too long */
int max_exp = FIRMWARE_VERSION(1,2) ? MAX_EXP_102 : MAX_EXP ;
--cam->params.sensorFps.divisor;
cam->cmd_queue |= COMMAND_SETSENSORFPS;
cam->params.flickerControl.coarseJump =
flicker_jumps[cam->mainsFreq]
[cam->params.sensorFps.baserate]
[cam->params.sensorFps.divisor];
cam->cmd_queue |= COMMAND_SETFLICKERCTRL;
new_exposure = cam->params.flickerControl.coarseJump-1;
while(new_exposure < 2*old_exposure &&
new_exposure+
cam->params.flickerControl.coarseJump < max_exp)
new_exposure += cam->params.flickerControl.coarseJump;
cam->params.exposure.coarseExpLo = new_exposure & 0xff;
cam->params.exposure.coarseExpHi = new_exposure >> 8;
cam->cmd_queue |= COMMAND_SETEXPOSURE;
cam->exposure_status = EXPOSURE_NORMAL;
LOG("Automatically increasing sensor_fps\n");
}
} else {
/* Flicker control off */
if((cam->exposure_status == EXPOSURE_VERY_DARK ||
cam->exposure_status == EXPOSURE_DARK) &&
cam->exposure_count >= DARK_TIME*framerate &&
cam->params.sensorFps.divisor < 3) {
/* dark for too long */
++cam->params.sensorFps.divisor;
cam->cmd_queue |= COMMAND_SETSENSORFPS;
if(cam->params.exposure.gain > 0) {
--cam->params.exposure.gain;
cam->cmd_queue |= COMMAND_SETEXPOSURE;
}
cam->exposure_status = EXPOSURE_NORMAL;
LOG("Automatically decreasing sensor_fps\n");
} else if((cam->exposure_status == EXPOSURE_VERY_LIGHT ||
cam->exposure_status == EXPOSURE_LIGHT) &&
cam->exposure_count >= LIGHT_TIME*framerate &&
cam->params.sensorFps.divisor > 0) {
/* light for too long */
--cam->params.sensorFps.divisor;
cam->cmd_queue |= COMMAND_SETSENSORFPS;
if(cam->params.exposure.gain <
cam->params.exposure.gainMode-1) {
++cam->params.exposure.gain;
cam->cmd_queue |= COMMAND_SETEXPOSURE;
}
cam->exposure_status = EXPOSURE_NORMAL;
LOG("Automatically increasing sensor_fps\n");
}
}
up(&cam->param_lock);
}
/*-----------------------------------------------------------------*/
/* if flicker is switched off, this function switches it back on.It checks,
however, that conditions are suitable before restarting it.
This should only be called for firmware version 1.2.
It also adjust the colour balance when an exposure step is detected - as
long as flicker is running
*/
static void restart_flicker(struct cam_data *cam)
{
int cam_exposure, old_exp;
if(!FIRMWARE_VERSION(1,2))
return;
down(&cam->param_lock);
if(cam->params.flickerControl.flickerMode == 0 ||
cam->raw_image[39] == 0) {
up(&cam->param_lock);
return;
}
cam_exposure = cam->raw_image[39]*2;
old_exp = cam->params.exposure.coarseExpLo +
cam->params.exposure.coarseExpHi*256;
/*
see how far away camera exposure is from a valid
flicker exposure value
*/
cam_exposure %= cam->params.flickerControl.coarseJump;
if(!cam->params.flickerControl.disabled &&
cam_exposure <= cam->params.flickerControl.coarseJump - 3) {
/* Flicker control auto-disabled */
cam->params.flickerControl.disabled = 1;
}
if(cam->params.flickerControl.disabled &&
cam->params.flickerControl.flickerMode &&
old_exp > cam->params.flickerControl.coarseJump +
ROUND_UP_EXP_FOR_FLICKER) {
/* exposure is now high enough to switch
flicker control back on */
set_flicker(&cam->params, &cam->cmd_queue, 1);
if((cam->cmd_queue & COMMAND_SETEXPOSURE) &&
cam->params.exposure.expMode == 2)
cam->exposure_status = EXPOSURE_NORMAL;
}
up(&cam->param_lock);
}
#undef FIRMWARE_VERSION
static int clear_stall(struct cam_data *cam)
{
/* FIXME: Does this actually work? */
LOG("Clearing stall\n");
cam->ops->streamRead(cam->lowlevel_data, cam->raw_image, 0);
do_command(cam, CPIA_COMMAND_GetCameraStatus,0,0,0,0);
return cam->params.status.streamState != STREAM_PAUSED;
}
/* kernel thread function to read image from camera */
static void fetch_frame(void *data)
static int fetch_frame(void *data)
{
int image_size, retry;
struct cam_data *cam = (struct cam_data *)data;
......@@ -2179,41 +2832,54 @@ static void fetch_frame(void *data)
/* load first frame always uncompressed */
if (cam->first_frame &&
cam->params.compression.mode != CPIA_COMPRESSION_NONE)
cam->params.compression.mode != CPIA_COMPRESSION_NONE) {
do_command(cam, CPIA_COMMAND_SetCompression,
CPIA_COMPRESSION_NONE,
NO_DECIMATION, 0, 0);
/* Trial & error - Discarding a frame prevents the
first frame from having an error in the data. */
do_command(cam, CPIA_COMMAND_DiscardFrame, 0, 0, 0, 0);
}
/* init camera upload */
if (do_command(cam, CPIA_COMMAND_SetGrabMode,
CPIA_GRAB_CONTINUOUS, 0, 0, 0))
continue;
if (do_command(cam, CPIA_COMMAND_GrabFrame, 0,
cam->params.streamStartLine, 0, 0))
continue;
if (cam->ops->wait_for_stream_ready) {
/* loop until image ready */
int count = 0;
do_command(cam, CPIA_COMMAND_GetCameraStatus,0,0,0,0);
while (cam->params.status.streamState != STREAM_READY) {
if(++count > READY_TIMEOUT)
break;
if(cam->params.status.streamState ==
STREAM_PAUSED) {
/* Bad news */
if(!clear_stall(cam))
return -EIO;
}
cond_resched();
/* sleep for 10 ms, hopefully ;) */
current->state = TASK_INTERRUPTIBLE;
/* sleep for 10 ms, hopefully ;) */
schedule_timeout(10*HZ/1000);
if (signal_pending(current))
return;
return -EINTR;
do_command(cam, CPIA_COMMAND_GetCameraStatus,
0, 0, 0, 0);
}
if(cam->params.status.streamState != STREAM_READY) {
continue;
}
}
/* grab image from camera */
cond_resched();
/* grab image from camera */
oldjif = jiffies;
image_size = cam->ops->streamRead(cam->lowlevel_data,
cam->raw_image, 0);
......@@ -2227,6 +2893,14 @@ static void fetch_frame(void *data)
cam->transfer_rate = diff==0 ? rate : rate/diff;
/* diff==0 ? unlikely but possible */
/* Switch flicker control back on if it got turned off */
restart_flicker(cam);
/* If AEC is enabled, monitor the exposure and
adjust the sensor frame rate if needed */
if(cam->params.exposure.expMode == 2)
monitor_exposure(cam);
/* camera idle now so dispatch queued commands */
dispatch_commands(cam);
......@@ -2238,12 +2912,28 @@ static void fetch_frame(void *data)
/* decompress and convert image to by copying it from
* raw_image to decompressed_frame
*/
cond_resched();
cam->image_size = parse_picture(cam, image_size);
if (cam->image_size <= 0)
if (cam->image_size <= 0) {
DBG("parse_picture failed %d\n", cam->image_size);
else
if(cam->params.compression.mode !=
CPIA_COMPRESSION_NONE) {
/* Compression may not work right if we
had a bad frame, get the next one
uncompressed. */
cam->first_frame = 1;
do_command(cam, CPIA_COMMAND_SetGrabMode,
CPIA_GRAB_SINGLE, 0, 0, 0);
/* FIXME: Trial & error - need up to 70ms for
the grab mode change to complete ? */
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(70*HZ / 1000);
if (signal_pending(current))
return -EINTR;
}
} else
break;
}
......@@ -2257,66 +2947,51 @@ static void fetch_frame(void *data)
} else
cam->decompressed_frame.state = FRAME_DONE;
#if 0
if (cam->first_frame &&
cam->params.compression.mode != CPIA_COMPRESSION_NONE) {
cam->first_frame = 0;
cam->cmd_queue |= COMMAND_SETCOMPRESSION;
}
#else
if (cam->first_frame) {
cam->first_frame = 0;
cam->cmd_queue |= COMMAND_SETCOMPRESSION;
cam->cmd_queue |= COMMAND_SETEXPOSURE;
do_command(cam, CPIA_COMMAND_SetCompression,
cam->params.compression.mode,
cam->params.compression.decimation, 0, 0);
/* Switch from single-grab to continuous grab */
do_command(cam, CPIA_COMMAND_SetGrabMode,
CPIA_GRAB_CONTINUOUS, 0, 0, 0);
}
#endif
return 0;
}
return -EIO;
}
static int capture_frame(struct cam_data *cam, struct video_mmap *vm)
{
int retval = 0;
if (!cam->frame_buf) {
/* we do lazy allocation */
if ((retval = allocate_frame_buf(cam)))
return retval;
int err;
if ((err = allocate_frame_buf(cam)))
return err;
}
/* FIXME: the first frame seems to be captured by the camera
without regards to any initial settings, so we throw away
that one, the next one is generated with our settings
(exposure, color balance, ...)
*/
if (cam->first_frame) {
cam->curframe = vm->frame;
cam->frame[cam->curframe].state = FRAME_READY;
fetch_frame(cam);
if (cam->frame[cam->curframe].state != FRAME_DONE)
retval = -EIO;
}
cam->curframe = vm->frame;
cam->frame[cam->curframe].state = FRAME_READY;
fetch_frame(cam);
if (cam->frame[cam->curframe].state != FRAME_DONE)
retval=-EIO;
return retval;
return fetch_frame(cam);
}
static int goto_high_power(struct cam_data *cam)
{
if (do_command(cam, CPIA_COMMAND_GotoHiPower, 0, 0, 0, 0))
return -1;
mdelay(100); /* windows driver does it too */
return -EIO;
current->state = TASK_INTERRUPTIBLE;
schedule_timeout(40*HZ/1000); /* windows driver does it too */
if(signal_pending(current))
return -EINTR;
if (do_command(cam, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0))
return -1;
return -EIO;
if (cam->params.status.systemState == HI_POWER_STATE) {
DBG("camera now in HIGH power state\n");
return 0;
}
printstatus(cam);
return -1;
return -EIO;
}
static int goto_low_power(struct cam_data *cam)
......@@ -2335,7 +3010,9 @@ static int goto_low_power(struct cam_data *cam)
static void save_camera_state(struct cam_data *cam)
{
if(!(cam->cmd_queue & COMMAND_SETCOLOURBALANCE))
do_command(cam, CPIA_COMMAND_GetColourBalance, 0, 0, 0, 0);
if(!(cam->cmd_queue & COMMAND_SETEXPOSURE))
do_command(cam, CPIA_COMMAND_GetExposure, 0, 0, 0, 0);
DBG("%d/%d/%d/%d/%d/%d/%d/%d\n",
......@@ -2353,44 +3030,8 @@ static void save_camera_state(struct cam_data *cam)
cam->params.colourBalance.blueGain);
}
static void set_camera_state(struct cam_data *cam)
static int set_camera_state(struct cam_data *cam)
{
if(cam->params.colourBalance.balanceModeIsAuto) {
do_command(cam, CPIA_COMMAND_SetColourBalance,
2, 0, 0, 0);
} else {
do_command(cam, CPIA_COMMAND_SetColourBalance,
1,
cam->params.colourBalance.redGain,
cam->params.colourBalance.greenGain,
cam->params.colourBalance.blueGain);
do_command(cam, CPIA_COMMAND_SetColourBalance,
3, 0, 0, 0);
}
do_command_extended(cam, CPIA_COMMAND_SetExposure,
cam->params.exposure.gainMode, 1, 1,
cam->params.exposure.centreWeight,
cam->params.exposure.gain,
cam->params.exposure.fineExp,
cam->params.exposure.coarseExpLo,
cam->params.exposure.coarseExpHi,
cam->params.exposure.redComp,
cam->params.exposure.green1Comp,
cam->params.exposure.green2Comp,
cam->params.exposure.blueComp);
do_command_extended(cam, CPIA_COMMAND_SetExposure,
0, 3, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0);
if (!cam->params.exposure.gainMode)
cam->params.exposure.gainMode = 2;
if (!cam->params.exposure.expMode)
cam->params.exposure.expMode = 2;
if (!cam->params.exposure.centreWeight)
cam->params.exposure.centreWeight = 1;
cam->cmd_queue = COMMAND_SETCOMPRESSION |
COMMAND_SETCOMPRESSIONTARGET |
COMMAND_SETCOLOURPARAMS |
......@@ -2398,18 +3039,29 @@ static void set_camera_state(struct cam_data *cam)
COMMAND_SETYUVTHRESH |
COMMAND_SETECPTIMING |
COMMAND_SETCOMPRESSIONPARAMS |
#if 0
COMMAND_SETEXPOSURE |
#endif
COMMAND_SETCOLOURBALANCE |
COMMAND_SETSENSORFPS |
COMMAND_SETAPCOR |
COMMAND_SETFLICKERCTRL |
COMMAND_SETVLOFFSET;
do_command(cam, CPIA_COMMAND_SetGrabMode, CPIA_GRAB_SINGLE,0,0,0);
dispatch_commands(cam);
/* Wait 6 frames for the sensor to get all settings and
AEC/ACB to settle */
current->state = TASK_INTERRUPTIBLE;
schedule_timeout((6*(cam->params.sensorFps.baserate ? 33 : 40) *
(1 << cam->params.sensorFps.divisor) + 10) *
HZ / 1000);
if(signal_pending(current))
return -EINTR;
save_camera_state(cam);
return;
return 0;
}
static void get_version_information(struct cam_data *cam)
......@@ -2424,14 +3076,16 @@ static void get_version_information(struct cam_data *cam)
/* initialize camera */
static int reset_camera(struct cam_data *cam)
{
int err;
/* Start the camera in low power mode */
if (goto_low_power(cam)) {
if (cam->params.status.systemState != WARM_BOOT_STATE)
return -ENODEV;
/* FIXME: this is just dirty trial and error */
reset_camera_struct(cam);
goto_high_power(cam);
err = goto_high_power(cam);
if(err)
return err;
do_command(cam, CPIA_COMMAND_DiscardFrame, 0, 0, 0, 0);
if (goto_low_power(cam))
return -ENODEV;
......@@ -2439,12 +3093,18 @@ static int reset_camera(struct cam_data *cam)
/* procedure described in developer's guide p3-28 */
/* Check the firmware version FIXME: should we check PNPID? */
/* Check the firmware version. */
cam->params.version.firmwareVersion = 0;
get_version_information(cam);
if (cam->params.version.firmwareVersion != 1)
return -ENODEV;
/* A bug in firmware 1-02 limits gainMode to 2 */
if(cam->params.version.firmwareRevision <= 2 &&
cam->params.exposure.gainMode > 2) {
cam->params.exposure.gainMode = 2;
}
/* set QX3 detected flag */
cam->params.qx3.qx3_detected = (cam->params.pnpID.vendor == 0x0813 &&
cam->params.pnpID.product == 0x0001);
......@@ -2458,8 +3118,9 @@ static int reset_camera(struct cam_data *cam)
STREAM_NOT_READY, 0);
/* GotoHiPower */
if (goto_high_power(cam))
return -ENODEV;
err = goto_high_power(cam);
if (err)
return err;
/* Check the camera status */
if (do_command(cam, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0))
......@@ -2492,9 +3153,13 @@ static int reset_camera(struct cam_data *cam)
do_command(cam, CPIA_COMMAND_GetVPVersion, 0, 0, 0, 0);
/* set camera to a known state */
set_camera_state(cam);
return set_camera_state(cam);
}
return 0;
static void put_cam(struct cpia_camera_ops* ops)
{
if (ops->owner)
__MOD_DEC_USE_COUNT(ops->owner);
}
/* ------------------------- V4L interface --------------------- */
......@@ -2509,6 +3174,9 @@ static int cpia_open(struct inode *inode, struct file *file)
return -ENODEV;
}
if (!try_inc_mod_count(cam->ops->owner))
return -ENODEV;
down(&cam->busy_lock);
err = -EBUSY;
if (cam->open_count > 0) {
......@@ -2540,6 +3208,9 @@ static int cpia_open(struct inode *inode, struct file *file)
goto oops;
}
if(signal_pending(current))
return -EINTR;
/* Set ownership of /proc/cpia/videoX to current user */
if(cam->proc_entry)
cam->proc_entry->uid = current->uid;
......@@ -2552,6 +3223,7 @@ static int cpia_open(struct inode *inode, struct file *file)
++cam->open_count;
file->private_data = dev;
up(&cam->busy_lock);
return 0;
oops:
......@@ -2564,6 +3236,7 @@ static int cpia_open(struct inode *inode, struct file *file)
cam->raw_image = NULL;
}
up(&cam->busy_lock);
put_cam(cam->ops);
return err;
}
......@@ -2591,6 +3264,8 @@ static int cpia_close(struct inode *inode, struct file *file)
/* close cpia */
cam->ops->close(cam->lowlevel_data);
put_cam(cam->ops);
}
if (--cam->open_count == 0) {
......@@ -2621,6 +3296,7 @@ static int cpia_read(struct file *file, char *buf,
{
struct video_device *dev = file->private_data;
struct cam_data *cam = dev->priv;
int err;
/* make this _really_ smp and multithread-safe */
if (down_interruptible(&cam->busy_lock))
......@@ -2647,19 +3323,17 @@ static int cpia_read(struct file *file, char *buf,
/* upload frame */
cam->decompressed_frame.state = FRAME_READY;
cam->mmap_kludge=0;
fetch_frame(cam);
if (cam->decompressed_frame.state != FRAME_DONE) {
DBG("upload failed %d/%d\n", cam->decompressed_frame.count,
cam->decompressed_frame.state);
if((err = fetch_frame(cam)) != 0) {
DBG("ERROR from fetch_frame: %d\n", err);
up(&cam->busy_lock);
return -EIO;
return err;
}
cam->decompressed_frame.state = FRAME_UNUSED;
/* copy data to user space */
if (cam->decompressed_frame.count > count) {
DBG("count wrong: %d, %lu\n", cam->decompressed_frame.count,
count);
(unsigned long) count);
up(&cam->busy_lock);
return -EFAULT;
}
......@@ -2698,7 +3372,7 @@ static int cpia_do_ioctl(struct inode *inode, struct file *file,
DBG("VIDIOCGCAP\n");
strcpy(b->name, "CPiA Camera");
b->type = VID_TYPE_CAPTURE;
b->type = VID_TYPE_CAPTURE | VID_TYPE_SUBCAPTURE;
b->channels = 1;
b->audios = 0;
b->maxwidth = 352; /* VIDEOSIZE_CIF */
......@@ -2754,8 +3428,8 @@ static int cpia_do_ioctl(struct inode *inode, struct file *file,
DBG("VIDIOCSPICT\n");
/* check validity */
DBG("palette: %d\n", vp.palette);
DBG("depth: %d\n", vp.depth);
DBG("palette: %d\n", vp->palette);
DBG("depth: %d\n", vp->depth);
if (!valid_mode(vp->palette, vp->depth)) {
retval = -EINVAL;
break;
......@@ -2825,6 +3499,10 @@ static int cpia_do_ioctl(struct inode *inode, struct file *file,
break;
}
cam->video_size = video_size;
/* video size is changing, reset the subcapture area */
memset(&cam->vc, 0, sizeof(cam->vc));
set_vw_size(cam);
DBG("%d / %d\n", cam->vw.width, cam->vw.height);
cam->cmd_queue |= COMMAND_SETFORMAT;
......@@ -2904,6 +3582,10 @@ static int cpia_do_ioctl(struct inode *inode, struct file *file,
}
if (video_size != cam->video_size) {
cam->video_size = video_size;
/* video size is changing, reset the subcapture area */
memset(&cam->vc, 0, sizeof(cam->vc));
set_vw_size(cam);
cam->cmd_queue |= COMMAND_SETFORMAT;
dispatch_commands(cam);
......@@ -2946,6 +3628,77 @@ static int cpia_do_ioctl(struct inode *inode, struct file *file,
break;
}
case VIDIOCGCAPTURE:
DBG("VIDIOCGCAPTURE\n");
if (copy_to_user(arg, &cam->vc, sizeof(struct video_capture)))
retval = -EFAULT;
break;
case VIDIOCSCAPTURE:
{
struct video_capture vc;
DBG("VIDIOCSCAPTURE\n");
if (copy_from_user(&vc, arg, sizeof(vc))) {
retval = -EFAULT;
break;
}
if (vc.decimation != 0) { /* How should this be used? */
retval = -EINVAL;
break;
}
if (vc.flags != 0) { /* Even/odd grab not supported */
retval = -EINVAL;
break;
}
/* Clip to the resolution we can set for the ROI
(every 8 columns and 4 rows) */
vc.x = vc.x & ~(__u32)7;
vc.y = vc.y & ~(__u32)3;
vc.width = vc.width & ~(__u32)7;
vc.height = vc.height & ~(__u32)3;
if(vc.width == 0 || vc.height == 0 ||
vc.x + vc.width > cam->vw.width ||
vc.y + vc.height > cam->vw.height) {
retval = -EINVAL;
break;
}
DBG("%d,%d/%dx%d\n", vc.x,vc.y,vc.width, vc.height);
down(&cam->param_lock);
cam->vc.x = vc.x;
cam->vc.y = vc.y;
cam->vc.width = vc.width;
cam->vc.height = vc.height;
set_vw_size(cam);
cam->cmd_queue |= COMMAND_SETFORMAT;
up(&cam->param_lock);
/* setformat ignored by camera during streaming,
* so stop/dispatch/start */
dispatch_commands(cam);
break;
}
case VIDIOCGUNIT:
{
struct video_unit vu;
vu.video = cam->vdev.minor;
vu.vbi = VIDEO_NO_UNIT;
vu.radio = VIDEO_NO_UNIT;
vu.audio = VIDEO_NO_UNIT;
vu.teletext = VIDEO_NO_UNIT;
break;
}
/* pointless to implement overlay with this camera */
case VIDIOCCAPTURE:
case VIDIOCGFBUF:
......@@ -2966,7 +3719,6 @@ static int cpia_do_ioctl(struct inode *inode, struct file *file,
break;
}
up(&cam->param_lock);
up(&cam->busy_lock);
return retval;
}
......@@ -3057,7 +3809,7 @@ static void reset_camera_struct(struct cam_data *cam)
cam->params.colourParams.brightness = 50;
cam->params.colourParams.contrast = 48;
cam->params.colourParams.saturation = 50;
cam->params.exposure.gainMode = 2;
cam->params.exposure.gainMode = 4;
cam->params.exposure.expMode = 2; /* AEC */
cam->params.exposure.compMode = 1;
cam->params.exposure.centreWeight = 1;
......@@ -3065,27 +3817,31 @@ static void reset_camera_struct(struct cam_data *cam)
cam->params.exposure.fineExp = 0;
cam->params.exposure.coarseExpLo = 185;
cam->params.exposure.coarseExpHi = 0;
cam->params.exposure.redComp = 220;
cam->params.exposure.green1Comp = 214;
cam->params.exposure.green2Comp = 214;
cam->params.exposure.blueComp = 230;
cam->params.colourBalance.balanceModeIsAuto = 1;
cam->params.exposure.redComp = COMP_RED;
cam->params.exposure.green1Comp = COMP_GREEN1;
cam->params.exposure.green2Comp = COMP_GREEN2;
cam->params.exposure.blueComp = COMP_BLUE;
cam->params.colourBalance.balanceMode = 2; /* ACB */
cam->params.colourBalance.redGain = 32;
cam->params.colourBalance.greenGain = 6;
cam->params.colourBalance.blueGain = 92;
cam->params.apcor.gain1 = 0x1c;
cam->params.apcor.gain2 = 0x1a;
cam->params.apcor.gain4 = 0x2d;
cam->params.apcor.gain8 = 0x2a;
cam->params.apcor.gain1 = 0x18;
cam->params.apcor.gain2 = 0x16;
cam->params.apcor.gain4 = 0x24;
cam->params.apcor.gain8 = 0x34;
cam->params.flickerControl.flickerMode = 0;
cam->params.flickerControl.disabled = 1;
cam->params.flickerControl.coarseJump =
flicker_jumps[cam->mainsFreq]
[cam->params.sensorFps.baserate]
[cam->params.sensorFps.divisor];
cam->params.vlOffset.gain1 = 24;
cam->params.vlOffset.gain2 = 28;
cam->params.vlOffset.gain4 = 30;
cam->params.vlOffset.gain8 = 30;
cam->params.flickerControl.allowableOverExposure =
-find_over_exposure(cam->params.colourParams.brightness);
cam->params.vlOffset.gain1 = 20;
cam->params.vlOffset.gain2 = 24;
cam->params.vlOffset.gain4 = 26;
cam->params.vlOffset.gain8 = 26;
cam->params.compressionParams.hysteresis = 3;
cam->params.compressionParams.threshMax = 11;
cam->params.compressionParams.smallStep = 1;
......@@ -3097,6 +3853,7 @@ static void reset_camera_struct(struct cam_data *cam)
/* End of default values from Software Developer's Guide */
cam->transfer_rate = 0;
cam->exposure_status = EXPOSURE_NORMAL;
/* Set Sensor FPS to 15fps. This seems better than 30fps
* for indoor lighting. */
......@@ -3131,17 +3888,21 @@ static void reset_camera_struct(struct cam_data *cam)
cam->vp.depth = 24; /* to be set by user */
cam->vp.palette = VIDEO_PALETTE_RGB24; /* to be set by user */
cam->vc.x = 0;
cam->vc.y = 0;
cam->vc.width = 0;
cam->vc.height = 0;
cam->vw.x = 0;
cam->vw.y = 0;
set_vw_size(cam);
cam->vw.chromakey = 0;
/* PP NOTE: my extension to use vw.flags for this, bear it! */
cam->vw.flags = 0;
cam->vw.clipcount = 0;
cam->vw.clips = NULL;
cam->cmd_queue = COMMAND_NONE;
cam->first_frame = 0;
cam->first_frame = 1;
return;
}
......
drivers/media/video/cpia.h
View file @ 002b40d8
......@@ -26,13 +26,13 @@
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#define CPIA_MAJ_VER 0
#define CPIA_MIN_VER 8
#define CPIA_PATCH_VER 1
#define CPIA_MAJ_VER 1
#define CPIA_MIN_VER 2
#define CPIA_PATCH_VER 2
#define CPIA_PP_MAJ_VER 0
#define CPIA_PP_MIN_VER 8
#define CPIA_PP_PATCH_VER 1
#define CPIA_PP_MAJ_VER 1
#define CPIA_PP_MIN_VER 2
#define CPIA_PP_PATCH_VER 2
#define CPIA_MAX_FRAME_SIZE_UNALIGNED (352 * 288 * 4) /* CIF at RGB32 */
#define CPIA_MAX_FRAME_SIZE ((CPIA_MAX_FRAME_SIZE_UNALIGNED + PAGE_SIZE - 1) & ~(PAGE_SIZE - 1)) /* align above to PAGE_SIZE */
......@@ -93,6 +93,11 @@ struct cpia_camera_ops
* is STREAM_READY before calling streamRead.
*/
int wait_for_stream_ready;
/*
* Used to maintain lowlevel module usage counts
*/
struct module *owner;
};
struct cpia_frame {
......@@ -150,7 +155,7 @@ struct cam_params {
u8 blueComp;
} exposure;
struct {
u8 balanceModeIsAuto;
u8 balanceMode;
u8 redGain;
u8 greenGain;
u8 blueGain;
......@@ -166,9 +171,10 @@ struct cam_params {
u8 gain8;
} apcor;
struct {
u8 disabled;
u8 flickerMode;
u8 coarseJump;
u8 allowableOverExposure;
int allowableOverExposure;
} flickerControl;
struct {
u8 gain1;
......@@ -261,6 +267,7 @@ struct cam_data {
struct video_device vdev; /* v4l videodev */
struct video_picture vp; /* v4l camera settings */
struct video_window vw; /* v4l capture area */
struct video_capture vc; /* v4l subcapture area */
/* mmap interface */
int curframe; /* the current frame to grab into */
......@@ -271,6 +278,8 @@ struct cam_data {
int first_frame;
int mmap_kludge; /* 'wrong' byte order for mmap */
volatile u32 cmd_queue; /* queued commands */
int exposure_status; /* EXPOSURE_* */
int exposure_count; /* number of frames at this status */
};
/* cpia_register_camera is called by low level driver for each camera.
......@@ -382,15 +391,27 @@ void cpia_unregister_camera(struct cam_data *cam);
#define VP_STATE_ACB_RMAX 0x40
#define VP_STATE_ACB_GMAX 0x80
/* default (minimum) compensation values */
#define COMP_RED 220
#define COMP_GREEN1 214
#define COMP_GREEN2 COMP_GREEN1
#define COMP_BLUE 230
/* exposure status */
#define EXPOSURE_VERY_LIGHT 0
#define EXPOSURE_LIGHT 1
#define EXPOSURE_NORMAL 2
#define EXPOSURE_DARK 3
#define EXPOSURE_VERY_DARK 4
/* ErrorCode */
#define ERROR_FLICKER_BELOW_MIN_EXP 0x01 /*flicker exposure got below minimum exposure */
#define ALOG(fmt,args...) printk(fmt, ##args)
#define LOG(fmt,args...) ALOG(KERN_INFO __FILE__ ":%s(%d):" fmt, __FUNCTION__ , __LINE__ , ##args)
#ifdef _CPIA_DEBUG_
#define ADBG(lineno,fmt,args...) printk(fmt, jiffies, lineno, ##args)
#define DBG(fmt,args...) ADBG((__LINE__), KERN_DEBUG __FILE__" (%ld):" __FUNCTION__ "(%d):" fmt, ##args)
#define ADBG(fmt,args...) printk(fmt, jiffies, ##args)
#define DBG(fmt,args...) ADBG(KERN_DEBUG __FILE__" (%ld):%s(%d):" fmt, __FUNCTION__, __LINE__ , ##args)
#else
#define DBG(fmn,args...) do {} while(0)
#endif
......@@ -400,15 +421,19 @@ void cpia_unregister_camera(struct cam_data *cam);
(p)&0x80?1:0, (p)&0x40?1:0, (p)&0x20?1:0, (p)&0x10?1:0,\
(p)&0x08?1:0, (p)&0x04?1:0, (p)&0x02?1:0, (p)&0x01?1:0);
static inline void cpia_add_to_list(struct cam_data* l, struct cam_data* drv)
static inline void cpia_add_to_list(struct cam_data** l, struct cam_data** drv_p)
{
drv->next = l;
drv->previous = &l;
l = drv;
struct cam_data* drv;
drv = *drv_p;
drv->next = *l;
drv->previous = l;
*l = drv;
}
static inline void cpia_remove_from_list(struct cam_data* drv)
static inline void cpia_remove_from_list(struct cam_data** drv_p)
{
struct cam_data* drv;
drv = *drv_p;
if (drv->previous != NULL) {
if (drv->next != NULL)
drv->next->previous = drv->previous;
......
drivers/media/video/cpia_pp.c
View file @ 002b40d8
......@@ -157,7 +157,8 @@ static struct cpia_camera_ops cpia_pp_ops =
cpia_pp_streamStop,
cpia_pp_streamRead,
cpia_pp_close,
1
1,
THIS_MODULE
};
static struct cam_data *cam_list;
......@@ -565,7 +566,7 @@ static int cpia_pp_register(struct parport *port)
return -ENXIO;
}
spin_lock( &cam_list_lock_pp );
cpia_add_to_list(cam_list, cpia);
cpia_add_to_list(&cam_list, &cpia);
spin_unlock( &cam_list_lock_pp );
return 0;
......@@ -575,11 +576,11 @@ static void cpia_pp_detach (struct parport *port)
{
struct cam_data *cpia;
spin_lock( &cam_list_lock_pp );
for(cpia = cam_list; cpia != NULL; cpia = cpia->next) {
struct pp_cam_entry *cam = cpia->lowlevel_data;
if (cam && cam->port->number == port->number) {
cpia_remove_from_list(cpia);
spin_lock( &cam_list_lock_pp );
cpia_remove_from_list(&cpia);
spin_unlock( &cam_list_lock_pp );
cpia_unregister_camera(cpia);
......
drivers/media/video/cpia_usb.c
View file @ 002b40d8
......@@ -100,7 +100,8 @@ static struct cpia_camera_ops cpia_usb_ops = {
cpia_usb_streamStop,
cpia_usb_streamRead,
cpia_usb_close,
0
0,
THIS_MODULE
};
static struct cam_data *cam_list;
......@@ -548,7 +549,7 @@ static int cpia_probe(struct usb_interface *intf,
}
spin_lock( &cam_list_lock_usb );
cpia_add_to_list(cam_list, cam);
cpia_add_to_list(&cam_list, &cam);
spin_unlock( &cam_list_lock_usb );
dev_set_drvdata(&intf->dev, cam);
......@@ -602,7 +603,7 @@ static void cpia_disconnect(struct usb_interface *intf)
ucpia = (struct usb_cpia *) cam->lowlevel_data;
spin_lock( &cam_list_lock_usb );
cpia_remove_from_list(cam);
cpia_remove_from_list(&cam);
spin_unlock( &cam_list_lock_usb );
/* Don't even try to reset the altsetting if we're disconnected */
......
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