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[media] gspca-conex: convert to the control framework

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Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
2012-05-14 04:09:17 -03:00
committed by Mauro Carvalho Chehab
parent 1bd7d6adc6
commit cbc1c94cc5
1 changed files with 62 additions and 136 deletions
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198
drivers/media/video/gspca/conex.c
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@@ -31,74 +31,21 @@ MODULE_AUTHOR("Michel Xhaard <mxhaard@users.sourceforge.net>");
MODULE_DESCRIPTION("GSPCA USB Conexant Camera Driver"); MODULE_DESCRIPTION("GSPCA USB Conexant Camera Driver");
MODULE_LICENSE("GPL"); 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_MIN 30
#define QUALITY_MAX 60 #define QUALITY_MAX 60
#define QUALITY_DEF 40 #define QUALITY_DEF 40
/* 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;
u8 jpeg_hdr[JPEG_HDR_SZ]; u8 jpeg_hdr[JPEG_HDR_SZ];
}; };
/* 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,
},
};
static const struct v4l2_pix_format vga_mode[] = { static const struct v4l2_pix_format vga_mode[] = {
{176, 144, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE, {176, 144, V4L2_PIX_FMT_JPEG, V4L2_FIELD_NONE,
.bytesperline = 176, .bytesperline = 176,
@@ -817,17 +764,11 @@ static void cx11646_init1(struct gspca_dev *gspca_dev)
static int sd_config(struct gspca_dev *gspca_dev, static int sd_config(struct gspca_dev *gspca_dev,
const struct usb_device_id *id) const struct usb_device_id *id)
{ {
struct sd *sd = (struct sd *) gspca_dev;
struct cam *cam; struct cam *cam;
cam = &gspca_dev->cam; cam = &gspca_dev->cam;
cam->cam_mode = vga_mode; cam->cam_mode = vga_mode;
cam->nmodes = ARRAY_SIZE(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; return 0;
} }
@@ -849,7 +790,6 @@ static int sd_start(struct gspca_dev *gspca_dev)
/* create the JPEG header */ /* create the JPEG header */
jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width, jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
0x22); /* JPEG 411 */ 0x22); /* JPEG 411 */
jpeg_set_qual(sd->jpeg_hdr, sd->quality);
cx11646_initsize(gspca_dev); cx11646_initsize(gspca_dev);
cx11646_fw(gspca_dev); cx11646_fw(gspca_dev);
@@ -903,99 +843,93 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
gspca_frame_add(gspca_dev, INTER_PACKET, data, len); 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 regE5cbx[] = { 0x88, 0x00, 0xd4, 0x01, 0x88, 0x01, 0x01, 0x01 };
__u8 reg51c[2]; __u8 reg51c[2];
__u8 bright;
__u8 colors;
bright = sd->brightness; regE5cbx[2] = val;
regE5cbx[2] = bright;
reg_w(gspca_dev, 0x00e5, regE5cbx, 8); reg_w(gspca_dev, 0x00e5, regE5cbx, 8);
reg_r(gspca_dev, 0x00e8, 8); reg_r(gspca_dev, 0x00e8, 8);
reg_w(gspca_dev, 0x00e5, regE5c, 4); reg_w(gspca_dev, 0x00e5, regE5c, 4);
reg_r(gspca_dev, 0x00e8, 1); /* 0x00 */ reg_r(gspca_dev, 0x00e8, 1); /* 0x00 */
colors = sd->colors;
reg51c[0] = 0x77; reg51c[0] = 0x77;
reg51c[1] = colors; reg51c[1] = sat;
reg_w(gspca_dev, 0x0051, reg51c, 2); reg_w(gspca_dev, 0x0051, reg51c, 2);
reg_w(gspca_dev, 0x0010, reg10, 2); reg_w(gspca_dev, 0x0010, reg10, 2);
reg_w_val(gspca_dev, 0x0070, reg70); 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 regE5acx[] = { 0x88, 0x0a, 0x0c, 0x01 }; /* seem MSB */
/* __u8 regE5bcx[] = { 0x88, 0x0b, 0x12, 0x01}; * LSB */ /* __u8 regE5bcx[] = { 0x88, 0x0b, 0x12, 0x01}; * LSB */
__u8 reg51c[2]; __u8 reg51c[2];
regE5acx[2] = sd->contrast; regE5acx[2] = val;
reg_w(gspca_dev, 0x00e5, regE5acx, 4); reg_w(gspca_dev, 0x00e5, regE5acx, 4);
reg_r(gspca_dev, 0x00e8, 1); /* 0x00 */ reg_r(gspca_dev, 0x00e8, 1); /* 0x00 */
reg51c[0] = 0x77; reg51c[0] = 0x77;
reg51c[1] = sd->colors; reg51c[1] = sat;
reg_w(gspca_dev, 0x0051, reg51c, 2); reg_w(gspca_dev, 0x0051, reg51c, 2);
reg_w(gspca_dev, 0x0010, reg10, 2); reg_w(gspca_dev, 0x0010, reg10, 2);
reg_w_val(gspca_dev, 0x0070, reg70); 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; gspca_dev->usb_err = 0;
if (gspca_dev->streaming)
setbrightness(gspca_dev); if (!gspca_dev->streaming)
return 0; return 0;
}
static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val) switch (ctrl->id) {
{ case V4L2_CID_BRIGHTNESS:
struct sd *sd = (struct sd *) gspca_dev; setbrightness(gspca_dev, ctrl->val, sd->sat->cur.val);
break;
*val = sd->brightness; case V4L2_CID_CONTRAST:
return 0; setcontrast(gspca_dev, ctrl->val, sd->sat->cur.val);
} break;
case V4L2_CID_SATURATION:
static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val) setbrightness(gspca_dev, sd->brightness->cur.val, ctrl->val);
{ setcontrast(gspca_dev, sd->contrast->cur.val, ctrl->val);
struct sd *sd = (struct sd *) gspca_dev; break;
case V4L2_CID_JPEG_COMPRESSION_QUALITY:
sd->contrast = val; jpeg_set_qual(sd->jpeg_hdr, ctrl->val);
if (gspca_dev->streaming) break;
setcontrast(gspca_dev);
return 0;
}
static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
{
struct sd *sd = (struct sd *) gspca_dev;
*val = sd->contrast;
return 0;
}
static int sd_setcolors(struct gspca_dev *gspca_dev, __s32 val)
{
struct sd *sd = (struct sd *) gspca_dev;
sd->colors = val;
if (gspca_dev->streaming) {
setbrightness(gspca_dev);
setcontrast(gspca_dev);
} }
return 0; return gspca_dev->usb_err;
} }
static int sd_getcolors(struct gspca_dev *gspca_dev, __s32 *val) static const struct v4l2_ctrl_ops sd_ctrl_ops = {
{ .s_ctrl = sd_s_ctrl,
struct sd *sd = (struct sd *) gspca_dev; };
*val = sd->colors; static int sd_init_controls(struct gspca_dev *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; return 0;
} }
@@ -1004,14 +938,7 @@ static int sd_set_jcomp(struct gspca_dev *gspca_dev,
{ {
struct sd *sd = (struct sd *) gspca_dev; struct sd *sd = (struct sd *) gspca_dev;
if (jcomp->quality < QUALITY_MIN) v4l2_ctrl_s_ctrl(sd->jpegqual, jcomp->quality);
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; return 0;
} }
@@ -1021,7 +948,7 @@ static int sd_get_jcomp(struct gspca_dev *gspca_dev,
struct sd *sd = (struct sd *) gspca_dev; struct sd *sd = (struct sd *) gspca_dev;
memset(jcomp, 0, sizeof *jcomp); memset(jcomp, 0, sizeof *jcomp);
jcomp->quality = sd->quality; jcomp->quality = v4l2_ctrl_g_ctrl(sd->jpegqual);
jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT jcomp->jpeg_markers = V4L2_JPEG_MARKER_DHT
| V4L2_JPEG_MARKER_DQT; | V4L2_JPEG_MARKER_DQT;
return 0; return 0;
@@ -1030,10 +957,9 @@ static int sd_get_jcomp(struct gspca_dev *gspca_dev,
/* sub-driver description */ /* sub-driver description */
static const struct sd_desc sd_desc = { static const struct sd_desc sd_desc = {
.name = MODULE_NAME, .name = MODULE_NAME,
.ctrls = sd_ctrls,
.nctrls = ARRAY_SIZE(sd_ctrls),
.config = sd_config, .config = sd_config,
.init = sd_init, .init = sd_init,
.init_controls = sd_init_controls,
.start = sd_start, .start = sd_start,
.stop0 = sd_stop0, .stop0 = sd_stop0,
.pkt_scan = sd_pkt_scan, .pkt_scan = sd_pkt_scan,