static int ov76be_mode_init(struct i2c_client *c, struct ovcamchip_window *win)
{
int qvga = win->quarter;
ov_write(c, 0x14, qvga?0xa4:0x84);
if (win->format == VIDEO_PALETTE_GREY) {
ov_write_mask(c, 0x0e, 0x40, 0x40);
ov_write_mask(c, 0x13, 0x20, 0x20);
} else {
ov_write_mask(c, 0x0e, 0x00, 0x40);
ov_write_mask(c, 0x13, 0x00, 0x20);
}
ov_write(c, 0x11, win->clockdiv);
if (win->width == 640 && win->height == 480)
ov_write(c, 0x35, 0x9e);
else
ov_write(c, 0x35, 0x1e);
return 0;
}
static int ov76be_mode_init(struct i2c_client *c, struct ovcamchip_window *win)
{
int qvga = win->quarter;
/******** QVGA-specific regs ********/
ov_write(c, 0x14, qvga?0xa4:0x84);
/******** Palette-specific regs ********/
if (win->format == VIDEO_PALETTE_GREY) {
ov_write_mask(c, 0x0e, 0x40, 0x40);
ov_write_mask(c, 0x13, 0x20, 0x20);
} else {
ov_write_mask(c, 0x0e, 0x00, 0x40);
ov_write_mask(c, 0x13, 0x00, 0x20);
}
/******** Clock programming ********/
ov_write(c, 0x11, win->clockdiv);
/******** Resolution-specific ********/
if (win->width == 640 && win->height == 480)
ov_write(c, 0x35, 0x9e);
else
ov_write(c, 0x35, 0x1e);
return 0;
}
static int ov6x20_mode_init(struct i2c_client *c, struct ovcamchip_window *win)
{
/******** QCIF-specific regs ********/
ov_write(c, 0x14, win->quarter?0x24:0x04);
/******** Palette-specific regs ********/
/* OV518 needs 8 bit multiplexed in color mode, and 16 bit in B&W */
if (c->adapter->id == (I2C_ALGO_SMBUS | I2C_HW_SMBUS_OV518)) {
if (win->format == VIDEO_PALETTE_GREY)
ov_write_mask(c, 0x13, 0x00, 0x20);
else
ov_write_mask(c, 0x13, 0x20, 0x20);
} else {
if (win->format == VIDEO_PALETTE_GREY)
ov_write_mask(c, 0x13, 0x20, 0x20);
else
ov_write_mask(c, 0x13, 0x00, 0x20);
}
/******** Clock programming ********/
/* The OV6620 needs special handling. This prevents the
* severe banding that normally occurs */
/* Clock down */
ov_write(c, 0x2a, 0x04);
ov_write(c, 0x11, win->clockdiv);
ov_write(c, 0x2a, 0x84);
/* This next setting is critical. It seems to improve
* the gain or the contrast. The "reserved" bits seem
* to have some effect in this case. */
ov_write(c, 0x2d, 0x85); /* FIXME: This messes up banding filter */
return 0;
}
static int ov76be_set_control(struct i2c_client *c,
struct ovcamchip_control *ctl)
{
struct ovcamchip *ov = i2c_get_clientdata(c);
struct ov76be *s = ov->spriv;
int rc;
int v = ctl->value;
switch (ctl->id) {
case OVCAMCHIP_CID_BRIGHT:
rc = ov_write(c, REG_BRT, v >> 8);
break;
case OVCAMCHIP_CID_SAT:
rc = ov_write(c, REG_SAT, v >> 8);
break;
case OVCAMCHIP_CID_EXP:
rc = ov_write(c, REG_EXP, v);
break;
case OVCAMCHIP_CID_FREQ:
{
int sixty = (v == 60);
rc = ov_write_mask(c, 0x2a, sixty?0x00:0x80, 0x80);
if (rc < 0)
goto out;
rc = ov_write(c, 0x2b, sixty?0x00:0xac);
if (rc < 0)
goto out;
rc = ov_write_mask(c, 0x76, 0x01, 0x01);
break;
}
case OVCAMCHIP_CID_BANDFILT:
rc = ov_write_mask(c, 0x2d, v?0x04:0x00, 0x04);
s->bandfilt = v;
break;
case OVCAMCHIP_CID_AUTOBRIGHT:
rc = ov_write_mask(c, 0x2d, v?0x10:0x00, 0x10);
s->auto_brt = v;
break;
case OVCAMCHIP_CID_AUTOEXP:
rc = ov_write_mask(c, 0x13, v?0x01:0x00, 0x01);
s->auto_exp = v;
break;
case OVCAMCHIP_CID_MIRROR:
rc = ov_write_mask(c, 0x12, v?0x40:0x00, 0x40);
s->mirror = v;
break;
default:
DDEBUG(2, &c->dev, "control not supported: %d", ctl->id);
return -EPERM;
}
out:
DDEBUG(3, &c->dev, "id=%d, arg=%d, rc=%d", ctl->id, v, rc);
return rc;
}
