diff options
Diffstat (limited to 'drivers/media/dvb/frontends/stv0299.c')
| -rw-r--r-- | drivers/media/dvb/frontends/stv0299.c | 100 |
1 files changed, 19 insertions, 81 deletions
diff --git a/drivers/media/dvb/frontends/stv0299.c b/drivers/media/dvb/frontends/stv0299.c index 889d925..29c4866 100644 --- a/drivers/media/dvb/frontends/stv0299.c +++ b/drivers/media/dvb/frontends/stv0299.c @@ -64,8 +64,12 @@ struct stv0299_state { u32 tuner_frequency; u32 symbol_rate; fe_code_rate_t fec_inner; + int errmode; }; +#define STATUS_BER 0 +#define STATUS_UCBLOCKS 1 + static int debug; static int debug_legacy_dish_switch; #define dprintk(args...) \ @@ -383,36 +387,6 @@ static int stv0299_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltag }; } -static inline s32 stv0299_calc_usec_delay (struct timeval lasttime, struct timeval curtime) -{ - return ((curtime.tv_usec < lasttime.tv_usec) ? - 1000000 - lasttime.tv_usec + curtime.tv_usec : - curtime.tv_usec - lasttime.tv_usec); -} - -static void stv0299_sleep_until (struct timeval *waketime, u32 add_usec) -{ - struct timeval lasttime; - s32 delta, newdelta; - - waketime->tv_usec += add_usec; - if (waketime->tv_usec >= 1000000) { - waketime->tv_usec -= 1000000; - waketime->tv_sec++; - } - - do_gettimeofday (&lasttime); - delta = stv0299_calc_usec_delay (lasttime, *waketime); - if (delta > 2500) { - msleep ((delta - 1500) / 1000); - do_gettimeofday (&lasttime); - newdelta = stv0299_calc_usec_delay (lasttime, *waketime); - delta = (newdelta > delta) ? 0 : newdelta; - } - if (delta > 0) - udelay (delta); -} - static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, u32 cmd) { struct stv0299_state* state = fe->demodulator_priv; @@ -440,7 +414,7 @@ static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, u32 cmd) memcpy (&tv[0], &nexttime, sizeof (struct timeval)); stv0299_writeregI (state, 0x0c, reg0x0c | 0x50); /* set LNB to 18V */ - stv0299_sleep_until (&nexttime, 32000); + dvb_frontend_sleep_until(&nexttime, 32000); for (i=0; i<9; i++) { if (debug_legacy_dish_switch) @@ -454,13 +428,13 @@ static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, u32 cmd) cmd = cmd >> 1; if (i != 8) - stv0299_sleep_until (&nexttime, 8000); + dvb_frontend_sleep_until(&nexttime, 8000); } if (debug_legacy_dish_switch) { printk ("%s(%d): switch delay (should be 32k followed by all 8k\n", __FUNCTION__, fe->dvb->num); - for (i=1; i < 10; i++) - printk ("%d: %d\n", i, stv0299_calc_usec_delay (tv[i-1] , tv[i])); + for (i = 1; i < 10; i++) + printk ("%d: %d\n", i, timeval_usec_diff(tv[i-1] , tv[i])); } return 0; @@ -517,8 +491,7 @@ static int stv0299_read_ber(struct dvb_frontend* fe, u32* ber) { struct stv0299_state* state = fe->demodulator_priv; - stv0299_writeregI(state, 0x34, (stv0299_readreg(state, 0x34) & 0xcf) | 0x10); - msleep(100); + if (state->errmode != STATUS_BER) return 0; *ber = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); return 0; @@ -557,9 +530,8 @@ static int stv0299_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) { struct stv0299_state* state = fe->demodulator_priv; - stv0299_writeregI(state, 0x34, (stv0299_readreg(state, 0x34) & 0xcf) | 0x30); - msleep(100); - *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); + if (state->errmode != STATUS_UCBLOCKS) *ucblocks = 0; + else *ucblocks = (stv0299_readreg (state, 0x1d) << 8) | stv0299_readreg (state, 0x1e); return 0; } @@ -581,49 +553,14 @@ static int stv0299_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_par if (state->config->invert) invval = (~invval) & 1; stv0299_writeregI(state, 0x0c, (stv0299_readreg(state, 0x0c) & 0xfe) | invval); - if (state->config->enhanced_tuning) { - /* check if we should do a finetune */ - int frequency_delta = p->frequency - state->tuner_frequency; - int minmax = p->u.qpsk.symbol_rate / 2000; - if (minmax < 5000) minmax = 5000; - - if ((frequency_delta > -minmax) && (frequency_delta < minmax) && (frequency_delta != 0) && - (state->fec_inner == p->u.qpsk.fec_inner) && - (state->symbol_rate == p->u.qpsk.symbol_rate)) { - int Drot_freq = (frequency_delta << 16) / (state->config->mclk / 1000); - - // zap the derotator registers first - stv0299_writeregI(state, 0x22, 0x00); - stv0299_writeregI(state, 0x23, 0x00); - - // now set them as we want - stv0299_writeregI(state, 0x22, Drot_freq >> 8); - stv0299_writeregI(state, 0x23, Drot_freq); - } else { - /* A "normal" tune is requested */ - stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */ - state->config->pll_set(fe, state->i2c, p); - stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */ - - stv0299_writeregI(state, 0x32, 0x80); - stv0299_writeregI(state, 0x22, 0x00); - stv0299_writeregI(state, 0x23, 0x00); - stv0299_writeregI(state, 0x32, 0x19); - stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate); - stv0299_set_FEC (state, p->u.qpsk.fec_inner); - } - } else { - stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */ - state->config->pll_set(fe, state->i2c, p); - stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */ + stv0299_writeregI(state, 0x05, 0xb5); /* enable i2c repeater on stv0299 */ + state->config->pll_set(fe, state->i2c, p); + stv0299_writeregI(state, 0x05, 0x35); /* disable i2c repeater on stv0299 */ - stv0299_set_FEC (state, p->u.qpsk.fec_inner); - stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate); - stv0299_writeregI(state, 0x22, 0x00); - stv0299_writeregI(state, 0x23, 0x00); - stv0299_readreg (state, 0x23); - stv0299_writeregI(state, 0x12, 0xb9); - } + stv0299_set_FEC (state, p->u.qpsk.fec_inner); + stv0299_set_symbolrate (fe, p->u.qpsk.symbol_rate); + stv0299_writeregI(state, 0x22, 0x00); + stv0299_writeregI(state, 0x23, 0x00); state->tuner_frequency = p->frequency; state->fec_inner = p->u.qpsk.fec_inner; @@ -708,6 +645,7 @@ struct dvb_frontend* stv0299_attach(const struct stv0299_config* config, state->tuner_frequency = 0; state->symbol_rate = 0; state->fec_inner = 0; + state->errmode = STATUS_BER; /* check if the demod is there */ stv0299_writeregI(state, 0x02, 0x34); /* standby off */ |
