diff options
Diffstat (limited to 'drivers/media/dvb/frontends/dib3000mc.c')
| -rw-r--r-- | drivers/media/dvb/frontends/dib3000mc.c | 238 |
1 files changed, 96 insertions, 142 deletions
diff --git a/drivers/media/dvb/frontends/dib3000mc.c b/drivers/media/dvb/frontends/dib3000mc.c index cc28417fa33ac7..ccc813b525d6d0 100644 --- a/drivers/media/dvb/frontends/dib3000mc.c +++ b/drivers/media/dvb/frontends/dib3000mc.c @@ -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; - - // 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 - - 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_offset = state->timing_offset; + u32 timf; - if (tim_offset < 0) { - tim_sgn = 1; - tim_offset = -tim_offset; + if (state->timf == 0) { + timf = 1384402; // default value for 8MHz + if (update_offset) + msleep(200); // first time we do an update } else - tim_sgn = 0; + timf = state->timf; - comp1 = tim_offset * timf_lsb; - comp2 = tim_offset * timf_msb; - comp = ((comp1 >> 16) + comp2) >> 7; + timf *= (BW_INDEX_TO_KHZ(bw) / 1000); - if (tim_sgn == 0) - comp = timf_msb * (1<<16) + timf_lsb + comp; - else - comp = timf_msb * (1<<16) + timf_lsb - comp; + if (update_offset) { + s16 tim_offs = dib3000mc_read_word(state, 416); + + if (tim_offs & 0x2000) + tim_offs -= 0x4000; - timf_msb = (comp>>16)&0xFF ; - timf_lsb = comp&0xFFFF; -*/ - u32 timf = 1384402 * (BW_INDEX_TO_KHZ(bw) / 1000); + if (nfft == 0) + tim_offs *= 4; + + timf += tim_offs; + state->timf = timf / (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)); @@ -326,10 +312,10 @@ static int dib3000mc_init(struct dvb_frontend *demod) dib3000mc_write_word(state, 175, 0x0000); dib3000mc_write_word(state, 1032, 0x012C); } - dib3000mc_write_word(state, 1033, 0); + dib3000mc_write_word(state, 1033, 0x0000); // P_clk_cfg - dib3000mc_write_word(state, 1037, 12592); + dib3000mc_write_word(state, 1037, 0x3130); // other configurations @@ -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); @@ -426,10 +412,9 @@ static int dib3000mc_sleep(struct dvb_frontend *demod) { struct dib3000mc_state *state = demod->demodulator_priv; - dib3000mc_write_word(state, 1037, dib3000mc_read_word(state, 1037) | 0x0003); dib3000mc_write_word(state, 1031, 0xFFFF); dib3000mc_write_word(state, 1032, 0xFFFF); - dib3000mc_write_word(state, 1033, 0xFFF4); // **** Bin2 + dib3000mc_write_word(state, 1033, 0xFFF0); return 0; } @@ -539,6 +524,7 @@ 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; @@ -578,59 +564,9 @@ 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); - - return 0; -} - -static int dib3000mc_demod_output_mode(struct dvb_frontend *demod, int mode) -{ - struct dib3000mc_state *state = demod->demodulator_priv; - return dib3000mc_set_output_mode(state, mode); -} - -static int dib3000mc_i2c_enumeration(struct dvb_frontend *demod[], int no_of_demods, u8 default_addr) -{ - struct dib3000mc_state *st; - int k,ret=0; - u8 new_addr; - - static u8 DIB3000MC_I2C_ADDRESS[] = {20,22,24,26}; - - for (k = no_of_demods-1; k >= 0; k--) { - st = demod[k]->demodulator_priv; - - /* designated i2c address */ - new_addr = DIB3000MC_I2C_ADDRESS[k]; - - st->i2c_addr = new_addr; - if (dib3000mc_identify(st) != 0) { - st->i2c_addr = default_addr; - if (dib3000mc_identify(st) != 0) { - dprintk("-E- DiB3000P/MC #%d: not identified\n", k); - return -EINVAL; - } - } - - /* turn on div_out */ - dib3000mc_demod_output_mode(demod[k], OUTMODE_MPEG2_PAR_CONT_CLK); - - // set new i2c address and force divstr (Bit 1) to value 0 (Bit 0) - ret |= dib3000mc_write_word(st, 1024, (new_addr << 3) | 0x1); - st->i2c_addr = new_addr; - } - - for (k = 0; k < no_of_demods; k++) { - st = demod[k]->demodulator_priv; - - ret |= dib3000mc_write_word(st, 1024, st->i2c_addr << 3); - - /* turn off data output */ - dib3000mc_demod_output_mode(demod[k],OUTMODE_HIGH_Z); - dib3000mc_write_word(st, 769, (1 << 7) ); + if (dib3000mc_read_word(state, 509) & 0x80) + dib3000mc_set_timing(state, ch->nfft, ch->Bw, 1); - } return 0; } @@ -826,61 +762,79 @@ void dib3000mc_set_config(struct dvb_frontend *fe, struct dib3000mc_config *cfg) } EXPORT_SYMBOL(dib3000mc_set_config); -static struct dvb_frontend_ops dib3000mc_ops; - -int dib3000mc_attach(struct i2c_adapter *i2c_adap, int no_of_demods, u8 default_addr, u8 do_i2c_enum, struct dib3000mc_config cfg[], struct dvb_frontend *demod[]) +int dib3000mc_i2c_enumeration(struct i2c_adapter *i2c, int no_of_demods, u8 default_addr, struct dib3000mc_config cfg[]) { - struct dib3000mc_state *st; - int k, num=0; - - if (no_of_demods < 1) - return -EINVAL; + struct dib3000mc_state st = { .i2c_adap = i2c }; + int k; + u8 new_addr; - for (k = 0; k < no_of_demods; k++) { - st = kzalloc(sizeof(struct dib3000mc_state), GFP_KERNEL); - if (st == NULL) - goto error; + static u8 DIB3000MC_I2C_ADDRESS[] = {20,22,24,26}; - num++; + for (k = no_of_demods-1; k >= 0; k--) { + st.cfg = &cfg[k]; - st->cfg = &cfg[k]; - // st->gpio_val = cfg[k].gpio_val; - // st->gpio_dir = cfg[k].gpio_dir; - st->i2c_adap = i2c_adap; + /* designated i2c address */ + new_addr = DIB3000MC_I2C_ADDRESS[k]; + st.i2c_addr = new_addr; + if (dib3000mc_identify(&st) != 0) { + st.i2c_addr = default_addr; + if (dib3000mc_identify(&st) != 0) { + dprintk("-E- DiB3000P/MC #%d: not identified\n", k); + return -ENODEV; + } + } - demod[k] = &st->demod; - demod[k]->demodulator_priv = st; - memcpy(&st->demod.ops, &dib3000mc_ops, sizeof(struct dvb_frontend_ops)); + dib3000mc_set_output_mode(&st, OUTMODE_MPEG2_PAR_CONT_CLK); -// INIT_COMPONENT_REGISTER_ACCESS(&st->register_access, 12, 16, dib7000p_register_read, dib7000p_register_write, st); -// demod[k]->register_access = &st->register_access; + // set new i2c address and force divstr (Bit 1) to value 0 (Bit 0) + dib3000mc_write_word(&st, 1024, (new_addr << 3) | 0x1); + st.i2c_addr = new_addr; } - if (do_i2c_enum) { - if (dib3000mc_i2c_enumeration(demod,no_of_demods,default_addr) != 0) - goto error; - } else { - st = demod[0]->demodulator_priv; - st->i2c_addr = default_addr; - if (dib3000mc_identify(st) != 0) - goto error; - } + for (k = 0; k < no_of_demods; k++) { + st.cfg = &cfg[k]; + st.i2c_addr = DIB3000MC_I2C_ADDRESS[k]; - for (k = 0; k < num; k++) { - st = demod[k]->demodulator_priv; - dibx000_init_i2c_master(&st->i2c_master, DIB3000MC, st->i2c_adap, st->i2c_addr); - } + dib3000mc_write_word(&st, 1024, st.i2c_addr << 3); + /* turn off data output */ + dib3000mc_set_output_mode(&st, OUTMODE_HIGH_Z); + } return 0; +} +EXPORT_SYMBOL(dib3000mc_i2c_enumeration); + +static struct dvb_frontend_ops dib3000mc_ops; + +struct dvb_frontend * dib3000mc_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib3000mc_config *cfg) +{ + struct dvb_frontend *demod; + struct dib3000mc_state *st; + st = kzalloc(sizeof(struct dib3000mc_state), GFP_KERNEL); + if (st == NULL) + return NULL; + + st->cfg = cfg; + st->i2c_adap = i2c_adap; + st->i2c_addr = i2c_addr; + + demod = &st->demod; + demod->demodulator_priv = st; + memcpy(&st->demod.ops, &dib3000mc_ops, sizeof(struct dvb_frontend_ops)); + + if (dib3000mc_identify(st) != 0) + goto error; + + dibx000_init_i2c_master(&st->i2c_master, DIB3000MC, st->i2c_adap, st->i2c_addr); + + dib3000mc_write_word(st, 1037, 0x3130); + + return demod; error: - for (k = 0; k < num; k++) { - kfree(demod[k]->demodulator_priv); - demod[k] = NULL; - } - return -EINVAL; + kfree(st); + return NULL; } - EXPORT_SYMBOL(dib3000mc_attach); static struct dvb_frontend_ops dib3000mc_ops = { |