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- simplify init_search_param() with new register access functions

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- add stream id 0x80000000 to set streaming mode
This commit is contained in:
Ralph Metzler 2017-12-05 19:57:08 +01:00
parent 611065f572
commit b814026565
1 changed files with 56 additions and 60 deletions
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116
frontends/stv0910.c
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@ -853,45 +853,67 @@ static int stop(struct stv *state)
return 0;
}
static int init_search_param(struct stv *state)
static void set_pls(struct stv *state, u32 val)
{
u8 tmp;
if (val == state->cur_scrambling_code)
return;
write_reg(state, RSTV0910_P2_PLROOT0 + state->regoff,
val & 0xff);
write_reg(state, RSTV0910_P2_PLROOT1 + state->regoff,
(val >> 8) & 0xff);
write_reg(state, RSTV0910_P2_PLROOT2 + state->regoff,
(val >> 16) & 0x0f);
state->cur_scrambling_code = val;
}
read_reg(state, RSTV0910_P2_PDELCTRL1 + state->regoff, &tmp);
tmp |= 0x20; // Filter_en (no effect if SIS=non-MIS
write_reg(state, RSTV0910_P2_PDELCTRL1 + state->regoff, tmp);
static void set_isi(struct stv *state, u32 isi)
{
if (isi == NO_STREAM_ID_FILTER)
return;
if (isi == 0x80000000) {
set_field(FORCE_CONTINUOUS, 1);
set_field(TSOUT_NOSYNC, 1);
} else {
set_field(FILTER_EN, 1);
write_reg(state, RSTV0910_P2_ISIENTRY + state->regoff,
isi & 0xff);
write_reg(state, RSTV0910_P2_ISIBITENA + state->regoff, 0xff);
}
set_field(ALGOSWRST, 1);
set_field(ALGOSWRST, 0);
}
read_reg(state, RSTV0910_P2_PDELCTRL2 + state->regoff, &tmp);
tmp &= ~0x02; // frame mode = 0
write_reg(state, RSTV0910_P2_PDELCTRL2 + state->regoff, tmp);
static void set_stream_modes(struct stv *state, struct dtv_frontend_properties *p)
{
u32 scrambling_code = 1;
write_reg(state, RSTV0910_P2_UPLCCST0 + state->regoff, 0xe0);
write_reg(state, RSTV0910_P2_ISIBITENA + state->regoff, 0x00);
set_isi(state, p->stream_id);
read_reg(state, RSTV0910_P2_TSSTATEM + state->regoff, &tmp);
tmp &= ~0x01; // nosync = 0, in case next signal is standard TS
write_reg(state, RSTV0910_P2_TSSTATEM + state->regoff, tmp);
read_reg(state, RSTV0910_P2_TSCFGL + state->regoff, &tmp);
tmp &= ~0x04; // embindvb = 0
write_reg(state, RSTV0910_P2_TSCFGL + state->regoff, tmp);
read_reg(state, RSTV0910_P2_TSINSDELH + state->regoff, &tmp);
tmp &= ~0x80; // syncbyte = 0
write_reg(state, RSTV0910_P2_TSINSDELH + state->regoff, tmp);
read_reg(state, RSTV0910_P2_TSINSDELM + state->regoff, &tmp);
tmp &= ~0x08; // token = 0
write_reg(state, RSTV0910_P2_TSINSDELM + state->regoff, tmp);
read_reg(state, RSTV0910_P2_TSDLYSET2 + state->regoff, &tmp);
tmp &= ~0x30; // hysteresis threshold = 0
write_reg(state, RSTV0910_P2_TSDLYSET2 + state->regoff, tmp);
read_reg(state, RSTV0910_P2_PDELCTRL0 + state->regoff, &tmp);
tmp = (tmp & ~0x30) | 0x10; // isi obs mode = 1, observe min ISI
write_reg(state, RSTV0910_P2_PDELCTRL0 + state->regoff, tmp);
/* Backwards compatibility to API in CrazyCat tree.
* PRBS X root cannot be 0, so this should always work.
*/
if ((p->stream_id != NO_STREAM_ID_FILTER) &&
(p->stream_id & 0xfffff00))
scrambling_code = 0xfffff & (p->stream_id >> 8);
/* p->pls is always gold code ! */
if (p->pls != NO_SCRAMBLING_CODE)
scrambling_code = p->pls | 0x40000;
set_pls(state, scrambling_code);
}
static int init_search_param(struct stv *state, struct dtv_frontend_properties *p)
{
set_field(FORCE_CONTINUOUS, 0);
set_field(FRAME_MODE, 0);
set_field(FILTER_EN, 0);
set_field(TSOUT_NOSYNC, 0);
set_field(TSFIFO_EMBINDVB, 0);
set_field(TSDEL_SYNCBYTE, 0);
set_reg(UPLCCST0, 0xe0);
set_field(TSINS_TOKEN, 0);
set_field(HYSTERESIS_THRESHOLD, 0);
set_field(ISIOBS_MODE, 1);
set_stream_modes(state, p);
return 0;
}
@ -974,7 +996,6 @@ static int start(struct stv *state, struct dtv_frontend_properties *p)
s32 freq;
u8 reg_dmdcfgmd;
u16 symb;
u32 scrambling_code = 1;
if (p->symbol_rate < 100000 || p->symbol_rate > 70000000)
return -EINVAL;
@ -986,32 +1007,7 @@ static int start(struct stv *state, struct dtv_frontend_properties *p)
if (state->started)
write_reg(state, RSTV0910_P2_DMDISTATE + state->regoff, 0x5C);
init_search_param(state);
if (p->stream_id != NO_STREAM_ID_FILTER) {
/* Backwards compatibility to "crazy" API.
* PRBS X root cannot be 0, so this should always work.
*/
if (p->stream_id & 0xffffff00)
scrambling_code = p->stream_id >> 8;
write_reg(state, RSTV0910_P2_ISIENTRY + state->regoff,
p->stream_id & 0xff);
write_reg(state, RSTV0910_P2_ISIBITENA + state->regoff, 0xff);
}
/* props->pls is always gold code ! */
if (p->pls != NO_SCRAMBLING_CODE)
scrambling_code = p->pls | 0x40000;
if (scrambling_code != state->cur_scrambling_code) {
write_reg(state, RSTV0910_P2_PLROOT0 + state->regoff,
scrambling_code & 0xff);
write_reg(state, RSTV0910_P2_PLROOT1 + state->regoff,
(scrambling_code >> 8) & 0xff);
write_reg(state, RSTV0910_P2_PLROOT2 + state->regoff,
(scrambling_code >> 16) & 0x0f);
state->cur_scrambling_code = scrambling_code;
}
init_search_param(state, p);
if (p->symbol_rate <= 1000000) { /*SR <=1Msps*/
state->demod_timeout = 3000;