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authorMauro Carvalho Chehab <mchehab@brturbo.com.br>2006-01-09 15:25:26 -0200
committerMauro Carvalho Chehab <mchehab@brturbo.com.br>2006-01-09 15:25:26 -0200
commit70f00044a2107a2c7d654bf1d3e0494f77777f47 (patch)
tree929354504de7bbcfab5530d7edd1c190bafa6ffc /drivers/media/video/cx88/cx88-video.c
parent5ea892f156310132a1bd37c45c3ca09663cfb9fb (diff)
V4L/DVB (3162): Some fixes at cx88 controls
- Now, default control values at cx88_cx8800_ctls are honored - default value for contrast/saturation were changed to be in line with available documentation for the chipset; - Removed some bad coding at set_control; - U/V Saturation now changes proportionally Signed-off-by: Michael Krufky <mkrufky@m1k.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Diffstat (limited to 'drivers/media/video/cx88/cx88-video.c')
-rw-r--r--drivers/media/video/cx88/cx88-video.c85
1 files changed, 39 insertions, 46 deletions
diff --git a/drivers/media/video/cx88/cx88-video.c b/drivers/media/video/cx88/cx88-video.c
index bc025c46aed..b76abb9b896 100644
--- a/drivers/media/video/cx88/cx88-video.c
+++ b/drivers/media/video/cx88/cx88-video.c
@@ -240,7 +240,7 @@ static struct cx88_ctrl cx8800_ctls[] = {
.minimum = 0,
.maximum = 0xff,
.step = 1,
- .default_value = 0,
+ .default_value = 0x3f,
.type = V4L2_CTRL_TYPE_INTEGER,
},
.off = 0,
@@ -271,7 +271,7 @@ static struct cx88_ctrl cx8800_ctls[] = {
.minimum = 0,
.maximum = 0xff,
.step = 1,
- .default_value = 0,
+ .default_value = 0x7f,
.type = V4L2_CTRL_TYPE_INTEGER,
},
.off = 0,
@@ -285,6 +285,7 @@ static struct cx88_ctrl cx8800_ctls[] = {
.name = "Mute",
.minimum = 0,
.maximum = 1,
+ .default_value = 1,
.type = V4L2_CTRL_TYPE_BOOLEAN,
},
.reg = AUD_VOL_CTL,
@@ -298,7 +299,7 @@ static struct cx88_ctrl cx8800_ctls[] = {
.minimum = 0,
.maximum = 0x3f,
.step = 1,
- .default_value = 0,
+ .default_value = 0x1f,
.type = V4L2_CTRL_TYPE_INTEGER,
},
.reg = AUD_VOL_CTL,
@@ -917,6 +918,9 @@ static int get_control(struct cx88_core *core, struct v4l2_control *ctl)
ctl->value = ((value + (c->off << c->shift)) & c->mask) >> c->shift;
break;
}
+ printk("get_control id=0x%X reg=0x%02x val=0x%02x (mask 0x%02x)%s\n",
+ ctl->id, c->reg, ctl->value,
+ c->mask, c->sreg ? " [shadowed]" : "");
return 0;
}
@@ -925,13 +929,13 @@ static int set_control(struct cx88_core *core, struct v4l2_control *ctl)
{
/* struct cx88_core *core = dev->core; */
struct cx88_ctrl *c = NULL;
- u32 v_sat_value;
- u32 value;
+ u32 value,mask;
int i;
-
- for (i = 0; i < CX8800_CTLS; i++)
- if (cx8800_ctls[i].v.id == ctl->id)
+ for (i = 0; i < CX8800_CTLS; i++) {
+ if (cx8800_ctls[i].v.id == ctl->id) {
c = &cx8800_ctls[i];
+ }
+ }
if (NULL == c)
return -EINVAL;
@@ -939,6 +943,7 @@ static int set_control(struct cx88_core *core, struct v4l2_control *ctl)
ctl->value = c->v.minimum;
if (ctl->value > c->v.maximum)
ctl->value = c->v.maximum;
+ mask=c->mask;
switch (ctl->id) {
case V4L2_CID_AUDIO_BALANCE:
value = (ctl->value < 0x40) ? (0x40 - ctl->value) : ctl->value;
@@ -948,56 +953,44 @@ static int set_control(struct cx88_core *core, struct v4l2_control *ctl)
break;
case V4L2_CID_SATURATION:
/* special v_sat handling */
- v_sat_value = ctl->value - (0x7f - 0x5a);
- if (v_sat_value > 0xff)
- v_sat_value = 0xff;
- if (v_sat_value < 0x00)
- v_sat_value = 0x00;
- cx_andor(MO_UV_SATURATION, 0xff00, v_sat_value << 8);
- /* fall through to default route for u_sat */
+
+ value = ((ctl->value - c->off) << c->shift) & c->mask;
+
+ if (core->tvnorm->id & V4L2_STD_SECAM) {
+ /* For SECAM, both U and V sat should be equal */
+ value=value<<8|value;
+ } else {
+ /* Keeps U Saturation proportional to V Sat */
+ value=(value*0x5a)/0x7f<<8|value;
+ }
+ mask=0xffff;
+ break;
default:
value = ((ctl->value - c->off) << c->shift) & c->mask;
break;
}
- dprintk(1,"set_control id=0x%X reg=0x%x val=0x%x%s\n",
- ctl->id, c->reg, value, c->sreg ? " [shadowed]" : "");
+ printk("set_control id=0x%X reg=0x%02x val=0x%02x (mask 0x%02x)%s\n",
+ ctl->id, c->reg, value,
+ mask, c->sreg ? " [shadowed]" : "");
if (c->sreg) {
- cx_sandor(c->sreg, c->reg, c->mask, value);
+ cx_sandor(c->sreg, c->reg, mask, value);
} else {
- cx_andor(c->reg, c->mask, value);
+ cx_andor(c->reg, mask, value);
}
return 0;
}
-/* static void init_controls(struct cx8800_dev *dev) */
static void init_controls(struct cx88_core *core)
{
- static struct v4l2_control mute = {
- .id = V4L2_CID_AUDIO_MUTE,
- .value = 1,
- };
- static struct v4l2_control volume = {
- .id = V4L2_CID_AUDIO_VOLUME,
- .value = 0x3f,
- };
- static struct v4l2_control hue = {
- .id = V4L2_CID_HUE,
- .value = 0x80,
- };
- static struct v4l2_control contrast = {
- .id = V4L2_CID_CONTRAST,
- .value = 0x80,
- };
- static struct v4l2_control brightness = {
- .id = V4L2_CID_BRIGHTNESS,
- .value = 0x80,
- };
+ struct v4l2_control ctrl;
+ int i;
- set_control(core,&mute);
- set_control(core,&volume);
- set_control(core,&hue);
- set_control(core,&contrast);
- set_control(core,&brightness);
+ for (i = 0; i < CX8800_CTLS; i++) {
+ ctrl.id=cx8800_ctls[i].v.id;
+ ctrl.value=cx8800_ctls[i].v.default_value
+ +cx8800_ctls[i].off;
+ set_control(core, &ctrl);
+ }
}
/* ------------------------------------------------------------------ */
@@ -1930,8 +1923,8 @@ static int __devinit cx8800_initdev(struct pci_dev *pci_dev,
/* initial device configuration */
down(&core->lock);
- init_controls(core);
cx88_set_tvnorm(core,tvnorms);
+ init_controls(core);
video_mux(core,0);
up(&core->lock);