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V4L/DVB (4652): Misc fixes for DiB3000MC and Nova-T 500 

- make the timing frequency update work.
- fix AGC calibration for Nova-T 500

Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Patrick Boettcher 2006-09-19 12:51:53 -03:00 committed by Mauro Carvalho Chehab
parent d535cfa776
commit 01b4bf31ce
2 changed files with 34 additions and 47 deletions
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2
drivers/media/dvb/dvb-usb/dib0700_devices.c
View File

@ -25,7 +25,7 @@ static struct mt2060_config bristol_mt2060_config[2] = {
static struct dibx000_agc_config bristol_dib3000p_mt2060_agc_config = {
.band_caps = BAND_VHF | BAND_UHF,
.setup = (0 << 15) | (0 << 14) | (0 << 13) | (0 << 12) | (29 << 0),
.setup = (1 << 8) | (5 << 5) | (0 << 4) | (0 << 3) | (0 << 2) | (2 << 0),
.agc1_max = 42598,
.agc1_min = 17694,

79
drivers/media/dvb/frontends/dib3000mc.c
View File

@ -37,6 +37,8 @@ struct dib3000mc_state {
struct dibx000_i2c_master i2c_master;
u32 timf;
fe_bandwidth_t current_bandwidth;
u16 dev_id;
@ -92,50 +94,31 @@ static int dib3000mc_identify(struct dib3000mc_state *state)
static int dib3000mc_set_timing(struct dib3000mc_state *state, s16 nfft, u8 bw, u8 update_offset)
{
/*
u32 timf_msb, timf_lsb, i;
int tim_sgn ;
LUInt comp1, comp2, comp ;
// u32 tim_offset ;
comp = 27700 * BW_INDEX_TO_KHZ(bw) / 1000;
timf_msb = (comp >> 16) & 0x00FF;
timf_lsb = comp & 0xFFFF;
u32 timf;
if (state->timf == 0) {
timf = 1384402; // default value for 8MHz
if (update_offset)
msleep(200); // first time we do an update
} else
timf = state->timf;
timf *= (BW_INDEX_TO_KHZ(bw) / 1000);
// Update the timing offset ;
if (update_offset) {
if (state->timing_offset_comp_done == 0) {
usleep(200000);
state->timing_offset_comp_done = 1;
}
tim_offset = dib3000mc_read_word(state, 416);
if ((tim_offset & 0x2000) == 0x2000)
tim_offset |= 0xC000; // PB: This only works if tim_offset is s16 - weird
s16 tim_offs = dib3000mc_read_word(state, 416);
if (tim_offs & 0x2000)
tim_offs -= 0x4000;
if (nfft == 0)
tim_offset = tim_offset << 2; // PB: Do not store the offset for different things in one variable
state->timing_offset += tim_offset;
tim_offs *= 4;
timf += tim_offs;
state->timf = timf / (BW_INDEX_TO_KHZ(bw) / 1000);
}
tim_offset = state->timing_offset;
if (tim_offset < 0) {
tim_sgn = 1;
tim_offset = -tim_offset;
} else
tim_sgn = 0;
comp1 = tim_offset * timf_lsb;
comp2 = tim_offset * timf_msb;
comp = ((comp1 >> 16) + comp2) >> 7;
if (tim_sgn == 0)
comp = timf_msb * (1<<16) + timf_lsb + comp;
else
comp = timf_msb * (1<<16) + timf_lsb - comp;
timf_msb = (comp>>16)&0xFF ;
timf_lsb = comp&0xFFFF;
*/
u32 timf = 1384402 * (BW_INDEX_TO_KHZ(bw) / 1000);
dprintk("timf: %d\n", timf);
dib3000mc_write_word(state, 23, timf >> 16);
dib3000mc_write_word(state, 24, timf & 0xffff);
@ -143,15 +126,18 @@ static int dib3000mc_set_timing(struct dib3000mc_state *state, s16 nfft, u8 bw,
return 0;
}
static int dib3000mc_setup_pwm3_state(struct dib3000mc_state *state)
static int dib3000mc_setup_pwm_state(struct dib3000mc_state *state)
{
u16 reg_51, reg_52 = state->cfg->agc->setup & 0xfefb;
if (state->cfg->pwm3_inversion) {
dib3000mc_write_word(state, 51, (2 << 14) | (0 << 10) | (7 << 6) | (2 << 2) | (2 << 0));
dib3000mc_write_word(state, 52, (0 << 8) | (5 << 5) | (1 << 4) | (1 << 3) | (1 << 2) | (2 << 0));
reg_51 = (2 << 14) | (0 << 10) | (7 << 6) | (2 << 2) | (2 << 0);
reg_52 |= (1 << 2);
} else {
dib3000mc_write_word(state, 51, (2 << 14) | (4 << 10) | (7 << 6) | (2 << 2) | (2 << 0));
dib3000mc_write_word(state, 52, (1 << 8) | (5 << 5) | (1 << 4) | (1 << 3) | (0 << 2) | (2 << 0));
reg_51 = (2 << 14) | (4 << 10) | (7 << 6) | (2 << 2) | (2 << 0);
reg_52 |= (1 << 8);
}
dib3000mc_write_word(state, 51, reg_51);
dib3000mc_write_word(state, 52, reg_52);
if (state->cfg->use_pwm3)
dib3000mc_write_word(state, 245, (1 << 3) | (1 << 0));
@ -350,7 +336,7 @@ static int dib3000mc_init(struct dvb_frontend *demod)
dib3000mc_write_word(state, 50, 0x8000);
// agc setup misc
dib3000mc_setup_pwm3_state(state);
dib3000mc_setup_pwm_state(state);
// P_agc_counter_lock
dib3000mc_write_word(state, 53, 0x87);
@ -539,6 +525,7 @@ static int dib3000mc_autosearch_start(struct dvb_frontend *demod, struct dibx000
reg = dib3000mc_read_word(state, 0);
dib3000mc_write_word(state, 0, reg | (1 << 8));
dib3000mc_read_word(state, 511);
dib3000mc_write_word(state, 0, reg);
return 0;
@ -578,8 +565,8 @@ static int dib3000mc_tune(struct dvb_frontend *demod, struct dibx000_ofdm_channe
dib3000mc_write_word(state, 33, 6);
}
// if (lock)
// dib3000mc_set_timing(state, ch->nfft, ch->Bw, 1);
if (dib3000mc_read_word(state, 509) & 0x80)
dib3000mc_set_timing(state, ch->nfft, ch->Bw, 1);
return 0;
}