diff options
Diffstat (limited to 'drivers/media/video/gspca/mars.c')
| -rw-r--r-- | drivers/media/video/gspca/mars.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/drivers/media/video/gspca/mars.c b/drivers/media/video/gspca/mars.c index ce065d363e8..6eb813e7b71 100644 --- a/drivers/media/video/gspca/mars.c +++ b/drivers/media/video/gspca/mars.c @@ -22,7 +22,6 @@ #define MODULE_NAME "mars" #include "gspca.h" -#define QUANT_VAL 1 /* quantization table */ #include "jpeg.h" MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>"); @@ -37,6 +36,9 @@ struct sd { u8 colors; u8 gamma; u8 sharpness; + u8 quality; + + u8 *jpeg_hdr; }; /* V4L2 controls supported by the driver */ @@ -176,6 +178,7 @@ static int sd_config(struct gspca_dev *gspca_dev, sd->colors = COLOR_DEF; sd->gamma = GAMMA_DEF; sd->sharpness = SHARPNESS_DEF; + sd->quality = 50; gspca_dev->nbalt = 9; /* use the altsetting 08 */ return 0; } @@ -193,6 +196,12 @@ static int sd_start(struct gspca_dev *gspca_dev) u8 *data; int i; + /* create the JPEG header */ + sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL); + jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, + 0x21); /* JPEG 422 */ + jpeg_set_qual(sd->jpeg_hdr, sd->quality); + data = gspca_dev->usb_buf; data[0] = 0x01; /* address */ @@ -303,11 +312,19 @@ static void sd_stopN(struct gspca_dev *gspca_dev) PDEBUG(D_ERR, "Camera Stop failed"); } +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 */ int len) /* iso packet length */ { + struct sd *sd = (struct sd *) gspca_dev; int p; if (len < 6) { @@ -330,7 +347,8 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, frame, data, p); /* put the JPEG header */ - jpeg_put_header(gspca_dev, frame, 0x21); + gspca_frame_add(gspca_dev, FIRST_PACKET, frame, + sd->jpeg_hdr, JPEG_HDR_SZ); data += p + 16; len -= p + 16; break; @@ -436,6 +454,7 @@ static const struct sd_desc sd_desc = { .init = sd_init, .start = sd_start, .stopN = sd_stopN, + .stop0 = sd_stop0, .pkt_scan = sd_pkt_scan, }; |