diff options
Diffstat (limited to 'drivers/media/dvb/dvb-usb/dtt200u-fe.c')
| -rw-r--r-- | drivers/media/dvb/dvb-usb/dtt200u-fe.c | 76 |
1 files changed, 39 insertions, 37 deletions
diff --git a/drivers/media/dvb/dvb-usb/dtt200u-fe.c b/drivers/media/dvb/dvb-usb/dtt200u-fe.c index d17d768..b032523 100644 --- a/drivers/media/dvb/dvb-usb/dtt200u-fe.c +++ b/drivers/media/dvb/dvb-usb/dtt200u-fe.c @@ -1,5 +1,5 @@ -/* Frontend part of the Linux driver for the Yakumo/Hama/Typhoon DVB-T - * USB2.0 receiver. +/* Frontend part of the Linux driver for the WideView/ Yakumo/ Hama/ + * Typhoon/ Yuan DVB-T USB2.0 receiver. * * Copyright (C) 2005 Patrick Boettcher <patrick.boettcher@desy.de> * @@ -14,61 +14,58 @@ struct dtt200u_fe_state { struct dvb_usb_device *d; + fe_status_t stat; + struct dvb_frontend_parameters fep; struct dvb_frontend frontend; }; -#define moan(which,what) info("unexpected value in '%s' for cmd '%02x' - please report to linux-dvb@linuxtv.org",which,what) - static int dtt200u_fe_read_status(struct dvb_frontend* fe, fe_status_t *stat) { struct dtt200u_fe_state *state = fe->demodulator_priv; - u8 bw = GET_TUNE_STAT; - u8 br[3] = { 0 }; -// u8 bdeb[5] = { 0 }; + u8 st = GET_TUNE_STATUS, b[3]; + + dvb_usb_generic_rw(state->d,&st,1,b,3,0); - dvb_usb_generic_rw(state->d,&bw,1,br,3,0); - switch (br[0]) { + switch (b[0]) { case 0x01: - *stat = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; + *stat = FE_HAS_SIGNAL | FE_HAS_CARRIER | + FE_HAS_VITERBI | FE_HAS_SYNC | FE_HAS_LOCK; break; - case 0x00: - *stat = 0; + case 0x00: /* pending */ + *stat = FE_TIMEDOUT; /* during set_frontend */ break; default: - moan("br[0]",GET_TUNE_STAT); + case 0x02: /* failed */ + *stat = 0; break; } - -// bw[0] = 0x88; -// dvb_usb_generic_rw(state->d,bw,1,bdeb,5,0); - -// deb_info("%02x: %02x %02x %02x %02x %02x\n",bw[0],bdeb[0],bdeb[1],bdeb[2],bdeb[3],bdeb[4]); - return 0; } + static int dtt200u_fe_read_ber(struct dvb_frontend* fe, u32 *ber) { struct dtt200u_fe_state *state = fe->demodulator_priv; - u8 bw = GET_BER; - *ber = 0; - dvb_usb_generic_rw(state->d,&bw,1,(u8*) ber,3,0); + u8 bw = GET_VIT_ERR_CNT,b[3]; + dvb_usb_generic_rw(state->d,&bw,1,b,3,0); + *ber = (b[0] << 16) | (b[1] << 8) | b[2]; return 0; } static int dtt200u_fe_read_unc_blocks(struct dvb_frontend* fe, u32 *unc) { struct dtt200u_fe_state *state = fe->demodulator_priv; - u8 bw = GET_UNK; - *unc = 0; - dvb_usb_generic_rw(state->d,&bw,1,(u8*) unc,3,0); + u8 bw = GET_RS_UNCOR_BLK_CNT,b[2]; + + dvb_usb_generic_rw(state->d,&bw,1,b,2,0); + *unc = (b[0] << 8) | b[1]; return 0; } static int dtt200u_fe_read_signal_strength(struct dvb_frontend* fe, u16 *strength) { struct dtt200u_fe_state *state = fe->demodulator_priv; - u8 bw = GET_SIG_STRENGTH, b; + u8 bw = GET_AGC, b; dvb_usb_generic_rw(state->d,&bw,1,&b,1,0); *strength = (b << 8) | b; return 0; @@ -86,7 +83,7 @@ static int dtt200u_fe_read_snr(struct dvb_frontend* fe, u16 *snr) static int dtt200u_fe_init(struct dvb_frontend* fe) { struct dtt200u_fe_state *state = fe->demodulator_priv; - u8 b = RESET_DEMOD; + u8 b = SET_INIT; return dvb_usb_generic_write(state->d,&b,1); } @@ -98,8 +95,8 @@ static int dtt200u_fe_sleep(struct dvb_frontend* fe) static int dtt200u_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune) { tune->min_delay_ms = 1500; - tune->step_size = 166667; - tune->max_drift = 166667 * 2; + tune->step_size = 0; + tune->max_drift = 0; return 0; } @@ -107,27 +104,32 @@ static int dtt200u_fe_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *fep) { struct dtt200u_fe_state *state = fe->demodulator_priv; + int i; + fe_status_t st; u16 freq = fep->frequency / 250000; - u8 bw,bwbuf[2] = { SET_BANDWIDTH, 0 }, freqbuf[3] = { SET_FREQUENCY, 0, 0 }; + u8 bwbuf[2] = { SET_BANDWIDTH, 0 },freqbuf[3] = { SET_RF_FREQ, 0, 0 }; switch (fep->u.ofdm.bandwidth) { - case BANDWIDTH_8_MHZ: bw = 8; break; - case BANDWIDTH_7_MHZ: bw = 7; break; - case BANDWIDTH_6_MHZ: bw = 6; break; + case BANDWIDTH_8_MHZ: bwbuf[1] = 8; break; + case BANDWIDTH_7_MHZ: bwbuf[1] = 7; break; + case BANDWIDTH_6_MHZ: bwbuf[1] = 6; break; case BANDWIDTH_AUTO: return -EOPNOTSUPP; default: return -EINVAL; } - deb_info("set_frontend\n"); - bwbuf[1] = bw; dvb_usb_generic_write(state->d,bwbuf,2); freqbuf[1] = freq & 0xff; freqbuf[2] = (freq >> 8) & 0xff; dvb_usb_generic_write(state->d,freqbuf,3); - memcpy(&state->fep,fep,sizeof(struct dvb_frontend_parameters)); + for (i = 0; i < 30; i++) { + msleep(20); + dtt200u_fe_read_status(fe, &st); + if (st & FE_TIMEDOUT) + continue; + } return 0; } @@ -174,7 +176,7 @@ success: static struct dvb_frontend_ops dtt200u_fe_ops = { .info = { - .name = "DTT200U (Yakumo/Typhoon/Hama) DVB-T", + .name = "WideView USB DVB-T", .type = FE_OFDM, .frequency_min = 44250000, .frequency_max = 867250000, |
