diff options
Diffstat (limited to 'drivers/media/video/gspca/pac207.c')
| -rw-r--r-- | drivers/media/video/gspca/pac207.c | 87 |
1 files changed, 23 insertions, 64 deletions
diff --git a/drivers/media/video/gspca/pac207.c b/drivers/media/video/gspca/pac207.c index 7ef18d57881..83b5f740c94 100644 --- a/drivers/media/video/gspca/pac207.c +++ b/drivers/media/video/gspca/pac207.c @@ -56,12 +56,6 @@ MODULE_LICENSE("GPL"); #define PAC207_GAIN_KNEE 20 #define PAC207_AUTOGAIN_DEADZONE 30 -/* We calculating the autogain at the end of the transfer of a frame, at this - moment a frame with the old settings is being transmitted, and a frame is - being captured with the old settings. So if we adjust the autogain we must - ignore atleast the 2 next frames for the new settings to come into effect - before doing any other adjustments */ -#define PAC207_AUTOGAIN_IGNORE_FRAMES 3 /* specific webcam descriptor */ struct sd { @@ -131,7 +125,8 @@ static struct ctrl sd_ctrls[] = { .minimum = 0, .maximum = 1, .step = 1, - .default_value = 1, +#define AUTOGAIN_DEF 1 + .default_value = AUTOGAIN_DEF, .flags = 0, }, .set = sd_setautogain, @@ -181,9 +176,6 @@ static const __u8 pac207_sensor_init[][8] = { /* 48 reg_72 Rate Control end BalSize_4a =0x36 */ static const __u8 PacReg72[] = { 0x00, 0x00, 0x36, 0x00 }; -static const unsigned char pac207_sof_marker[5] = - { 0xff, 0xff, 0x00, 0xff, 0x96 }; - static int pac207_write_regs(struct gspca_dev *gspca_dev, u16 index, const u8 *buffer, u16 length) { @@ -259,35 +251,32 @@ static int sd_config(struct gspca_dev *gspca_dev, return -ENODEV; } - pac207_write_reg(gspca_dev, 0x41, 0x00); - /* Bit_0=Image Format, - * Bit_1=LED, - * Bit_2=Compression test mode enable */ - pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */ - pac207_write_reg(gspca_dev, 0x11, 0x30); /* Analog Bias */ - PDEBUG(D_PROBE, "Pixart PAC207BCA Image Processor and Control Chip detected" " (vid/pid 0x%04X:0x%04X)", id->idVendor, id->idProduct); cam = &gspca_dev->cam; - cam->dev_name = (char *) id->driver_info; cam->epaddr = 0x05; cam->cam_mode = sif_mode; cam->nmodes = ARRAY_SIZE(sif_mode); sd->brightness = PAC207_BRIGHTNESS_DEFAULT; sd->exposure = PAC207_EXPOSURE_DEFAULT; sd->gain = PAC207_GAIN_DEFAULT; + sd->autogain = AUTOGAIN_DEF; return 0; } -/* this function is called at open time */ -static int sd_open(struct gspca_dev *gspca_dev) +/* this function is called at probe and resume time */ +static int sd_init(struct gspca_dev *gspca_dev) { - struct sd *sd = (struct sd *) gspca_dev; + pac207_write_reg(gspca_dev, 0x41, 0x00); + /* Bit_0=Image Format, + * Bit_1=LED, + * Bit_2=Compression test mode enable */ + pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */ + pac207_write_reg(gspca_dev, 0x11, 0x30); /* Analog Bias */ - sd->autogain = 1; return 0; } @@ -343,14 +332,8 @@ static void sd_stopN(struct gspca_dev *gspca_dev) pac207_write_reg(gspca_dev, 0x0f, 0x00); /* Power Control */ } -static void sd_stop0(struct gspca_dev *gspca_dev) -{ -} - -/* this function is called at close time */ -static void sd_close(struct gspca_dev *gspca_dev) -{ -} +/* Include pac common sof detection functions */ +#include "pac_common.h" static void pac207_do_auto_gain(struct gspca_dev *gspca_dev) { @@ -365,33 +348,7 @@ static void pac207_do_auto_gain(struct gspca_dev *gspca_dev) else if (gspca_auto_gain_n_exposure(gspca_dev, avg_lum, 100 + sd->brightness / 2, PAC207_AUTOGAIN_DEADZONE, PAC207_GAIN_KNEE, PAC207_EXPOSURE_KNEE)) - sd->autogain_ignore_frames = PAC207_AUTOGAIN_IGNORE_FRAMES; -} - -static unsigned char *pac207_find_sof(struct gspca_dev *gspca_dev, - unsigned char *m, int len) -{ - struct sd *sd = (struct sd *) gspca_dev; - int i; - - /* Search for the SOF marker (fixed part) in the header */ - for (i = 0; i < len; i++) { - if (m[i] == pac207_sof_marker[sd->sof_read]) { - sd->sof_read++; - if (sd->sof_read == sizeof(pac207_sof_marker)) { - PDEBUG(D_STREAM, - "SOF found, bytes to analyze: %u." - " Frame starts at byte #%u", - len, i + 1); - sd->sof_read = 0; - return m + i + 1; - } - } else { - sd->sof_read = 0; - } - } - - return NULL; + sd->autogain_ignore_frames = PAC_AUTOGAIN_IGNORE_FRAMES; } static void sd_pkt_scan(struct gspca_dev *gspca_dev, @@ -402,14 +359,14 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, struct sd *sd = (struct sd *) gspca_dev; unsigned char *sof; - sof = pac207_find_sof(gspca_dev, data, len); + sof = pac_find_sof(gspca_dev, data, len); if (sof) { int n; /* finish decoding current frame */ n = sof - data; - if (n > sizeof pac207_sof_marker) - n -= sizeof pac207_sof_marker; + if (n > sizeof pac_sof_marker) + n -= sizeof pac_sof_marker; else n = 0; frame = gspca_frame_add(gspca_dev, LAST_PACKET, frame, @@ -537,7 +494,7 @@ static int sd_setautogain(struct gspca_dev *gspca_dev, __s32 val) sd->gain = PAC207_GAIN_DEFAULT; if (gspca_dev->streaming) { sd->autogain_ignore_frames = - PAC207_AUTOGAIN_IGNORE_FRAMES; + PAC_AUTOGAIN_IGNORE_FRAMES; setexposure(gspca_dev); setgain(gspca_dev); } @@ -560,11 +517,9 @@ static const struct sd_desc sd_desc = { .ctrls = sd_ctrls, .nctrls = ARRAY_SIZE(sd_ctrls), .config = sd_config, - .open = sd_open, + .init = sd_init, .start = sd_start, .stopN = sd_stopN, - .stop0 = sd_stop0, - .close = sd_close, .dq_callback = pac207_do_auto_gain, .pkt_scan = sd_pkt_scan, }; @@ -597,6 +552,10 @@ static struct usb_driver sd_driver = { .id_table = device_table, .probe = sd_probe, .disconnect = gspca_disconnect, +#ifdef CONFIG_PM + .suspend = gspca_suspend, + .resume = gspca_resume, +#endif }; /* -- module insert / remove -- */ |