From de2d1549c2083e45ed84c779b64acf438ba5bf7f Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Sat, 19 Dec 2009 07:03:43 -0300 Subject: [PATCH] V4L/DVB (13869): gspca - sn9c20x: Cleanup code. Signed-off-by: Jean-Francois Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/sn9c20x.c | 31 +++++++++++++++-------------- 1 file changed, 16 insertions(+), 15 deletions(-) diff --git a/drivers/media/video/gspca/sn9c20x.c b/drivers/media/video/gspca/sn9c20x.c index e8dd2c36f0e6..4a1bc08f82b9 100644 --- a/drivers/media/video/gspca/sn9c20x.c +++ b/drivers/media/video/gspca/sn9c20x.c @@ -1506,36 +1506,36 @@ static int set_cmatrix(struct gspca_dev *gspca_dev) struct sd *sd = (struct sd *) gspca_dev; s32 hue_coord, hue_index = 180 + sd->hue; u8 cmatrix[21]; - memset(cmatrix, 0, 21); + memset(cmatrix, 0, sizeof cmatrix); cmatrix[2] = (sd->contrast * 0x25 / 0x100) + 0x26; cmatrix[0] = 0x13 + (cmatrix[2] - 0x26) * 0x13 / 0x25; cmatrix[4] = 0x07 + (cmatrix[2] - 0x26) * 0x07 / 0x25; cmatrix[18] = sd->brightness - 0x80; hue_coord = (hsv_red_x[hue_index] * sd->saturation) >> 8; - cmatrix[6] = (unsigned char)(hue_coord & 0xff); - cmatrix[7] = (unsigned char)((hue_coord >> 8) & 0x0f); + cmatrix[6] = hue_coord; + cmatrix[7] = (hue_coord >> 8) & 0x0f; hue_coord = (hsv_red_y[hue_index] * sd->saturation) >> 8; - cmatrix[8] = (unsigned char)(hue_coord & 0xff); - cmatrix[9] = (unsigned char)((hue_coord >> 8) & 0x0f); + cmatrix[8] = hue_coord; + cmatrix[9] = (hue_coord >> 8) & 0x0f; hue_coord = (hsv_green_x[hue_index] * sd->saturation) >> 8; - cmatrix[10] = (unsigned char)(hue_coord & 0xff); - cmatrix[11] = (unsigned char)((hue_coord >> 8) & 0x0f); + cmatrix[10] = hue_coord; + cmatrix[11] = (hue_coord >> 8) & 0x0f; hue_coord = (hsv_green_y[hue_index] * sd->saturation) >> 8; - cmatrix[12] = (unsigned char)(hue_coord & 0xff); - cmatrix[13] = (unsigned char)((hue_coord >> 8) & 0x0f); + cmatrix[12] = hue_coord; + cmatrix[13] = (hue_coord >> 8) & 0x0f; hue_coord = (hsv_blue_x[hue_index] * sd->saturation) >> 8; - cmatrix[14] = (unsigned char)(hue_coord & 0xff); - cmatrix[15] = (unsigned char)((hue_coord >> 8) & 0x0f); + cmatrix[14] = hue_coord; + cmatrix[15] = (hue_coord >> 8) & 0x0f; hue_coord = (hsv_blue_y[hue_index] * sd->saturation) >> 8; - cmatrix[16] = (unsigned char)(hue_coord & 0xff); - cmatrix[17] = (unsigned char)((hue_coord >> 8) & 0x0f); + cmatrix[16] = hue_coord; + cmatrix[17] = (hue_coord >> 8) & 0x0f; return reg_w(gspca_dev, 0x10e1, cmatrix, 21); } @@ -2015,6 +2015,7 @@ static int sd_config(struct gspca_dev *gspca_dev, default: cam->cam_mode = vga_mode; cam->nmodes = ARRAY_SIZE(vga_mode); + break; } sd->old_step = 0; @@ -2319,7 +2320,7 @@ static void do_autogain(struct gspca_dev *gspca_dev, u16 avg_lum) } } if (avg_lum > MAX_AVG_LUM) { - if (sd->gain >= 1) { + if (sd->gain > 0) { sd->gain--; set_gain(gspca_dev); } @@ -2347,7 +2348,7 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, { struct sd *sd = (struct sd *) gspca_dev; int avg_lum; - static unsigned char frame_header[] = + static u8 frame_header[] = {0xff, 0xff, 0x00, 0xc4, 0xc4, 0x96}; if (len == 64 && memcmp(data, frame_header, 6) == 0) { avg_lum = ((data[35] >> 2) & 3) | -- 2.20.1