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V4L/DVB (7073): DiB7070: Reception quality improved

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Removing two bugs to improve sensitivity for DiB7070 and Dib7000P with MT2266.

Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Patrick Boettcher 2008-01-25 07:25:20 -03:00 committed by Mauro Carvalho Chehab
parent c52344fdc4
commit 3cb2c39ded
2 changed files with 17 additions and 2 deletions
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6
drivers/media/dvb/dvb-usb/dib0700_devices.c
View File

@ -781,6 +781,8 @@ static struct dib7000p_config dib7070p_dib7000p_config = {
.agc_config_count = 1,
.agc = &dib7070_agc_config,
.bw = &dib7070_bw_config_12_mhz,
.tuner_is_baseband = 1,
.spur_protect = 1,
.gpio_dir = DIB7000P_GPIO_DEFAULT_DIRECTIONS,
.gpio_val = DIB7000P_GPIO_DEFAULT_VALUES,
@ -820,6 +822,8 @@ static struct dib7000p_config stk7070pd_dib7000p_config[2] = {
.agc_config_count = 1,
.agc = &dib7070_agc_config,
.bw = &dib7070_bw_config_12_mhz,
.tuner_is_baseband = 1,
.spur_protect = 1,
.gpio_dir = DIB7000P_GPIO_DEFAULT_DIRECTIONS,
.gpio_val = DIB7000P_GPIO_DEFAULT_VALUES,
@ -832,6 +836,8 @@ static struct dib7000p_config stk7070pd_dib7000p_config[2] = {
.agc_config_count = 1,
.agc = &dib7070_agc_config,
.bw = &dib7070_bw_config_12_mhz,
.tuner_is_baseband = 1,
.spur_protect = 1,
.gpio_dir = DIB7000P_GPIO_DEFAULT_DIRECTIONS,
.gpio_val = DIB7000P_GPIO_DEFAULT_VALUES,

13
drivers/media/dvb/frontends/dib0070.c
View File

@ -434,9 +434,14 @@ static u16 dib0070_p1f_defaults[] =
0,
};
static void dib0070_wbd_calibration(struct dib0070_state *state)
static void dib0070_wbd_calibration(struct dvb_frontend *fe)
{
u16 wbd_offs;
struct dib0070_state *state = fe->tuner_priv;
if (state->cfg->sleep)
state->cfg->sleep(fe, 0);
dib0070_write_reg(state, 0x0f, 0x6d81);
dib0070_write_reg(state, 0x20, 0x0040 | 0x0020 | 0x0010 | 0x0008 | 0x0002 | 0x0001);
msleep(9);
@ -444,6 +449,10 @@ static void dib0070_wbd_calibration(struct dib0070_state *state)
dib0070_write_reg(state, 0x20, 0);
state->wbd_ff_offset = ((wbd_offs * 8 * 18 / 33 + 1) / 2);
dprintk( "WBDStart = %d (Vargen) - FF = %hd", (u32) wbd_offs * 1800/1024, state->wbd_ff_offset);
if (state->cfg->sleep)
state->cfg->sleep(fe, 1);
}
u16 dib0070_wbd_offset(struct dvb_frontend *fe)
@ -560,7 +569,7 @@ struct dvb_frontend * dib0070_attach(struct dvb_frontend *fe, struct i2c_adapter
if (dib0070_reset(state) != 0)
goto free_mem;
dib0070_wbd_calibration(state);
dib0070_wbd_calibration(fe);
printk(KERN_INFO "DiB0070: successfully identified\n");
memcpy(&fe->ops.tuner_ops, &dib0070_ops, sizeof(struct dvb_tuner_ops));