From cbc1c94cc573d8e355447191ba88ede99d12594f Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 14 May 2012 04:09:17 -0300 Subject: [PATCH] [media] gspca-conex: convert to the control framework Signed-off-by: Hans Verkuil Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/conex.c | 196 ++++++++++-------------------- 1 file changed, 61 insertions(+), 135 deletions(-) diff --git a/drivers/media/video/gspca/conex.c b/drivers/media/video/gspca/conex.c index f39fee0fd10f..c66688a1d3a3 100644 --- a/drivers/media/video/gspca/conex.c +++ b/drivers/media/video/gspca/conex.c @@ -31,72 +31,19 @@ MODULE_AUTHOR("Michel Xhaard "); MODULE_DESCRIPTION("GSPCA USB Conexant Camera Driver"); MODULE_LICENSE("GPL"); -/* specific webcam descriptor */ -struct sd { - struct gspca_dev gspca_dev; /* !! must be the first item */ - - unsigned char brightness; - unsigned char contrast; - unsigned char colors; - u8 quality; #define QUALITY_MIN 30 #define QUALITY_MAX 60 #define QUALITY_DEF 40 - u8 jpeg_hdr[JPEG_HDR_SZ]; -}; +/* specific webcam descriptor */ +struct sd { + struct gspca_dev gspca_dev; /* !! must be the first item */ + struct v4l2_ctrl *brightness; + struct v4l2_ctrl *contrast; + struct v4l2_ctrl *sat; + struct v4l2_ctrl *jpegqual; -/* V4L2 controls supported by the driver */ -static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val); -static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val); -static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val); -static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val); -static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val); -static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val); - -static const struct ctrl sd_ctrls[] = { - { - { - .id = V4L2_CID_BRIGHTNESS, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Brightness", - .minimum = 0, - .maximum = 255, - .step = 1, -#define BRIGHTNESS_DEF 0xd4 - .default_value = BRIGHTNESS_DEF, - }, - .set = sd_setbrightness, - .get = sd_getbrightness, - }, - { - { - .id = V4L2_CID_CONTRAST, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Contrast", - .minimum = 0x0a, - .maximum = 0x1f, - .step = 1, -#define CONTRAST_DEF 0x0c - .default_value = CONTRAST_DEF, - }, - .set = sd_setcontrast, - .get = sd_getcontrast, - }, - { - { - .id = V4L2_CID_SATURATION, - .type = V4L2_CTRL_TYPE_INTEGER, - .name = "Color", - .minimum = 0, - .maximum = 7, - .step = 1, -#define COLOR_DEF 3 - .default_value = COLOR_DEF, - }, - .set = sd_setcolors, - .get = sd_getcolors, - }, + u8 jpeg_hdr[JPEG_HDR_SZ]; }; static const struct v4l2_pix_format vga_mode[] = { @@ -817,17 +764,11 @@ static void cx11646_init1(struct gspca_dev *gspca_dev) static int sd_config(struct gspca_dev *gspca_dev, const struct usb_device_id *id) { - struct sd *sd = (struct sd *) gspca_dev; struct cam *cam; cam = &gspca_dev->cam; cam->cam_mode = vga_mode; cam->nmodes = ARRAY_SIZE(vga_mode); - - sd->brightness = BRIGHTNESS_DEF; - sd->contrast = CONTRAST_DEF; - sd->colors = COLOR_DEF; - sd->quality = QUALITY_DEF; return 0; } @@ -849,7 +790,6 @@ static int sd_start(struct gspca_dev *gspca_dev) /* create the JPEG header */ jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, 0x22); /* JPEG 411 */ - jpeg_set_qual(sd->jpeg_hdr, sd->quality); cx11646_initsize(gspca_dev); cx11646_fw(gspca_dev); @@ -903,115 +843,102 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev, gspca_frame_add(gspca_dev, INTER_PACKET, data, len); } -static void setbrightness(struct gspca_dev *gspca_dev) +static void setbrightness(struct gspca_dev *gspca_dev, s32 val, s32 sat) { - struct sd *sd = (struct sd *) gspca_dev; __u8 regE5cbx[] = { 0x88, 0x00, 0xd4, 0x01, 0x88, 0x01, 0x01, 0x01 }; __u8 reg51c[2]; - __u8 bright; - __u8 colors; - bright = sd->brightness; - regE5cbx[2] = bright; + regE5cbx[2] = val; reg_w(gspca_dev, 0x00e5, regE5cbx, 8); reg_r(gspca_dev, 0x00e8, 8); reg_w(gspca_dev, 0x00e5, regE5c, 4); reg_r(gspca_dev, 0x00e8, 1); /* 0x00 */ - colors = sd->colors; reg51c[0] = 0x77; - reg51c[1] = colors; + reg51c[1] = sat; reg_w(gspca_dev, 0x0051, reg51c, 2); reg_w(gspca_dev, 0x0010, reg10, 2); reg_w_val(gspca_dev, 0x0070, reg70); } -static void setcontrast(struct gspca_dev *gspca_dev) +static void setcontrast(struct gspca_dev *gspca_dev, s32 val, s32 sat) { - struct sd *sd = (struct sd *) gspca_dev; __u8 regE5acx[] = { 0x88, 0x0a, 0x0c, 0x01 }; /* seem MSB */ /* __u8 regE5bcx[] = { 0x88, 0x0b, 0x12, 0x01}; * LSB */ __u8 reg51c[2]; - regE5acx[2] = sd->contrast; + regE5acx[2] = val; reg_w(gspca_dev, 0x00e5, regE5acx, 4); reg_r(gspca_dev, 0x00e8, 1); /* 0x00 */ reg51c[0] = 0x77; - reg51c[1] = sd->colors; + reg51c[1] = sat; reg_w(gspca_dev, 0x0051, reg51c, 2); reg_w(gspca_dev, 0x0010, reg10, 2); reg_w_val(gspca_dev, 0x0070, reg70); } -static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val) +static int sd_s_ctrl(struct v4l2_ctrl *ctrl) { - struct sd *sd = (struct sd *) gspca_dev; + struct gspca_dev *gspca_dev = + container_of(ctrl->handler, struct gspca_dev, ctrl_handler); + struct sd *sd = (struct sd *)gspca_dev; - sd->brightness = val; - if (gspca_dev->streaming) - setbrightness(gspca_dev); - return 0; -} + gspca_dev->usb_err = 0; -static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val) -{ - struct sd *sd = (struct sd *) gspca_dev; + if (!gspca_dev->streaming) + return 0; - *val = sd->brightness; - return 0; -} - -static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val) -{ - struct sd *sd = (struct sd *) gspca_dev; - - sd->contrast = val; - if (gspca_dev->streaming) - setcontrast(gspca_dev); - return 0; + switch (ctrl->id) { + case V4L2_CID_BRIGHTNESS: + setbrightness(gspca_dev, ctrl->val, sd->sat->cur.val); + break; + case V4L2_CID_CONTRAST: + setcontrast(gspca_dev, ctrl->val, sd->sat->cur.val); + break; + case V4L2_CID_SATURATION: + setbrightness(gspca_dev, sd->brightness->cur.val, ctrl->val); + setcontrast(gspca_dev, sd->contrast->cur.val, ctrl->val); + break; + case V4L2_CID_JPEG_COMPRESSION_QUALITY: + jpeg_set_qual(sd->jpeg_hdr, ctrl->val); + break; + } + return gspca_dev->usb_err; } -static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val) -{ - struct sd *sd = (struct sd *) gspca_dev; - - *val = sd->contrast; - return 0; -} +static const struct v4l2_ctrl_ops sd_ctrl_ops = { + .s_ctrl = sd_s_ctrl, +}; -static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val) +static int sd_init_controls(struct gspca_dev *gspca_dev) { - struct sd *sd = (struct sd *) gspca_dev; - - sd->colors = val; - if (gspca_dev->streaming) { - setbrightness(gspca_dev); - setcontrast(gspca_dev); + struct sd *sd = (struct sd *)gspca_dev; + struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; + + gspca_dev->vdev.ctrl_handler = hdl; + v4l2_ctrl_handler_init(hdl, 4); + sd->brightness = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_BRIGHTNESS, 0, 255, 1, 0xd4); + sd->contrast = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_CONTRAST, 0x0a, 0x1f, 1, 0x0c); + sd->sat = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_SATURATION, 0, 7, 1, 3); + sd->jpegqual = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_JPEG_COMPRESSION_QUALITY, + QUALITY_MIN, QUALITY_MAX, 1, QUALITY_DEF); + if (hdl->error) { + pr_err("Could not initialize controls\n"); + return hdl->error; } return 0; } -static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val) -{ - struct sd *sd = (struct sd *) gspca_dev; - - *val = sd->colors; - 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); + v4l2_ctrl_s_ctrl(sd->jpegqual, jcomp->quality); return 0; } @@ -1021,7 +948,7 @@ static int sd_get_jcomp(struct gspca_dev *gspca_dev, struct sd *sd = (struct sd *) gspca_dev; memset(jcomp, 0, sizeof *jcomp); - jcomp->quality = sd->quality; + jcomp->quality = v4l2_ctrl_g_ctrl(sd->jpegqual); jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT | V4L2_JPEG_MARKER_DQT; return 0; @@ -1030,10 +957,9 @@ static int sd_get_jcomp(struct gspca_dev *gspca_dev, /* sub-driver description */ static const struct sd_desc sd_desc = { .name = MODULE_NAME, - .ctrls = sd_ctrls, - .nctrls = ARRAY_SIZE(sd_ctrls), .config = sd_config, .init = sd_init, + .init_controls = sd_init_controls, .start = sd_start, .stop0 = sd_stop0, .pkt_scan = sd_pkt_scan, -- 2.30.2