diff options
Diffstat (limited to 'linux/drivers/media/video/gspca/sunplus.c')
| -rw-r--r-- | linux/drivers/media/video/gspca/sunplus.c | 100 |
1 files changed, 76 insertions, 24 deletions
diff --git a/linux/drivers/media/video/gspca/sunplus.c b/linux/drivers/media/video/gspca/sunplus.c index fba6f98d1..270b86f24 100644 --- a/linux/drivers/media/video/gspca/sunplus.c +++ b/linux/drivers/media/video/gspca/sunplus.c @@ -22,7 +22,6 @@ #define MODULE_NAME "sunplus" #include "gspca.h" -#define QUANT_VAL 5 /* quantization table */ #include "jpeg.h" MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>"); @@ -33,13 +32,14 @@ MODULE_LICENSE("GPL"); struct sd { struct gspca_dev gspca_dev; /* !! must be the first item */ - __u8 packet[ISO_MAX_SIZE + 128]; - /* !! no more than 128 ff in an ISO packet */ - unsigned char brightness; unsigned char contrast; unsigned char colors; unsigned char autogain; + u8 quality; +#define QUALITY_MIN 70 +#define QUALITY_MAX 95 +#define QUALITY_DEF 85 char bridge; #define BRIDGE_SPCA504 0 @@ -52,6 +52,9 @@ struct sd { #define LogitechClickSmart420 2 #define LogitechClickSmart820 3 #define MegapixV4 4 +#define MegaImageVI 5 + + u8 *jpeg_hdr; }; /* V4L2 controls supported by the driver */ @@ -873,7 +876,10 @@ static int sd_config(struct gspca_dev *gspca_dev, break; case BRIDGE_SPCA533: cam->cam_mode = custom_mode; - cam->nmodes = sizeof custom_mode / sizeof custom_mode[0]; + if (sd->subtype == MegaImageVI) /* 320x240 only */ + cam->nmodes = ARRAY_SIZE(custom_mode) - 1; + else + cam->nmodes = ARRAY_SIZE(custom_mode); break; case BRIDGE_SPCA504C: cam->cam_mode = vga_mode2; @@ -883,6 +889,7 @@ static int sd_config(struct gspca_dev *gspca_dev, sd->brightness = sd_ctrls[SD_BRIGHTNESS].qctrl.default_value; sd->contrast = sd_ctrls[SD_CONTRAST].qctrl.default_value; sd->colors = sd_ctrls[SD_COLOR].qctrl.default_value; + sd->quality = QUALITY_DEF; return 0; } @@ -999,6 +1006,14 @@ static int sd_start(struct gspca_dev *gspca_dev) __u8 i; __u8 info[6]; + /* create the JPEG header */ + sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL); + if (!sd->jpeg_hdr) + return -ENOMEM; + jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, + 0x22); /* JPEG 411 */ + jpeg_set_qual(sd->jpeg_hdr, sd->quality); + if (sd->bridge == BRIDGE_SPCA504B) spca504B_setQtable(gspca_dev); spca504B_SetSizeType(gspca_dev); @@ -1008,7 +1023,8 @@ static int sd_start(struct gspca_dev *gspca_dev) /* case BRIDGE_SPCA533: */ /* case BRIDGE_SPCA536: */ if (sd->subtype == MegapixV4 || - sd->subtype == LogitechClickSmart820) { + sd->subtype == LogitechClickSmart820 || + sd->subtype == MegaImageVI) { reg_w(gspca_dev, 0xf0, 0, 0, 0); spca504B_WaitCmdStatus(gspca_dev); reg_r(gspca_dev, 0xf0, 4, 0); @@ -1108,6 +1124,13 @@ static void sd_stopN(struct gspca_dev *gspca_dev) } } +static void sd_stop0(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + + kfree(sd->jpeg_hdr); +} + static void sd_pkt_scan(struct gspca_dev *gspca_dev, struct gspca_frame *frame, /* target */ __u8 *data, /* isoc packet */ @@ -1115,7 +1138,6 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, { struct sd *sd = (struct sd *) gspca_dev; int i, sof = 0; - unsigned char *s, *d; static unsigned char ffd9[] = {0xff, 0xd9}; /* frames are jpeg 4.1.1 without 0xff escape */ @@ -1184,26 +1206,24 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, ffd9, 2); /* put the JPEG header in the new frame */ - jpeg_put_header(gspca_dev, frame, 0x22); + gspca_frame_add(gspca_dev, FIRST_PACKET, frame, + sd->jpeg_hdr, JPEG_HDR_SZ); } /* add 0x00 after 0xff */ - for (i = len; --i >= 0; ) - if (data[i] == 0xff) - break; - if (i < 0) { /* no 0xff */ - gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len); - return; - } - s = data; - d = sd->packet; - for (i = 0; i < len; i++) { - *d++ = *s++; - if (s[-1] == 0xff) - *d++ = 0x00; - } - gspca_frame_add(gspca_dev, INTER_PACKET, frame, - sd->packet, d - sd->packet); + i = 0; + do { + if (data[i] == 0xff) { + gspca_frame_add(gspca_dev, INTER_PACKET, frame, + data, i + 1); + len -= i; + data += i; + *data = 0x00; + i = 0; + } + i++; + } while (i < len); + gspca_frame_add(gspca_dev, INTER_PACKET, frame, data, len); } static void setbrightness(struct gspca_dev *gspca_dev) @@ -1333,6 +1353,34 @@ static int sd_getautogain(struct gspca_dev *gspca_dev, __s32 *val) return 0; } +static int sd_set_jcomp(struct gspca_dev *gspca_dev, + struct v4l2_jpegcompression *jcomp) +{ + struct sd *sd = (struct sd *) gspca_dev; + + if (jcomp->quality < QUALITY_MIN) + sd->quality = QUALITY_MIN; + else if (jcomp->quality > QUALITY_MAX) + sd->quality = QUALITY_MAX; + else + sd->quality = jcomp->quality; + if (gspca_dev->streaming) + jpeg_set_qual(sd->jpeg_hdr, sd->quality); + return 0; +} + +static int sd_get_jcomp(struct gspca_dev *gspca_dev, + struct v4l2_jpegcompression *jcomp) +{ + struct sd *sd = (struct sd *) gspca_dev; + + memset(jcomp, 0, sizeof *jcomp); + jcomp->quality = sd->quality; + jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT + | V4L2_JPEG_MARKER_DQT; + return 0; +} + /* sub-driver description */ static const struct sd_desc sd_desc = { .name = MODULE_NAME, @@ -1342,7 +1390,10 @@ static const struct sd_desc sd_desc = { .init = sd_init, .start = sd_start, .stopN = sd_stopN, + .stop0 = sd_stop0, .pkt_scan = sd_pkt_scan, + .get_jcomp = sd_get_jcomp, + .set_jcomp = sd_set_jcomp, }; /* -- module initialisation -- */ @@ -1369,6 +1420,7 @@ static const __devinitdata struct usb_device_id device_table[] = { {USB_DEVICE(0x04fc, 0x5360), BS(SPCA536, 0)}, {USB_DEVICE(0x04fc, 0xffff), BS(SPCA504B, 0)}, {USB_DEVICE(0x052b, 0x1513), BS(SPCA533, MegapixV4)}, + {USB_DEVICE(0x052b, 0x1803), BS(SPCA533, MegaImageVI)}, {USB_DEVICE(0x0546, 0x3155), BS(SPCA533, 0)}, {USB_DEVICE(0x0546, 0x3191), BS(SPCA504B, 0)}, {USB_DEVICE(0x0546, 0x3273), BS(SPCA504B, 0)}, |