| /* Frontend part of the Linux driver for the Afatech 9005 |
| * USB1.1 DVB-T receiver. |
| * |
| * Copyright (C) 2007 Luca Olivetti (luca@ventoso.org) |
| * |
| * Thanks to Afatech who kindly provided information. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| * see Documentation/dvb/README.dvb-usb for more information |
| */ |
| #include "af9005.h" |
| #include "af9005-script.h" |
| #include "mt2060.h" |
| #include "qt1010.h" |
| #include <asm/div64.h> |
| |
| struct af9005_fe_state { |
| struct dvb_usb_device *d; |
| fe_status_t stat; |
| |
| /* retraining parameters */ |
| u32 original_fcw; |
| u16 original_rf_top; |
| u16 original_if_top; |
| u16 original_if_min; |
| u16 original_aci0_if_top; |
| u16 original_aci1_if_top; |
| u16 original_aci0_if_min; |
| u8 original_if_unplug_th; |
| u8 original_rf_unplug_th; |
| u8 original_dtop_if_unplug_th; |
| u8 original_dtop_rf_unplug_th; |
| |
| /* statistics */ |
| u32 pre_vit_error_count; |
| u32 pre_vit_bit_count; |
| u32 ber; |
| u32 post_vit_error_count; |
| u32 post_vit_bit_count; |
| u32 unc; |
| u16 abort_count; |
| |
| int opened; |
| int strong; |
| unsigned long next_status_check; |
| struct dvb_frontend frontend; |
| }; |
| |
| static int af9005_write_word_agc(struct dvb_usb_device *d, u16 reghi, |
| u16 reglo, u8 pos, u8 len, u16 value) |
| { |
| int ret; |
| u8 temp; |
| |
| if ((ret = af9005_write_ofdm_register(d, reglo, (u8) (value & 0xff)))) |
| return ret; |
| temp = (u8) ((value & 0x0300) >> 8); |
| return af9005_write_register_bits(d, reghi, pos, len, |
| (u8) ((value & 0x300) >> 8)); |
| } |
| |
| static int af9005_read_word_agc(struct dvb_usb_device *d, u16 reghi, |
| u16 reglo, u8 pos, u8 len, u16 * value) |
| { |
| int ret; |
| u8 temp0, temp1; |
| |
| if ((ret = af9005_read_ofdm_register(d, reglo, &temp0))) |
| return ret; |
| if ((ret = af9005_read_ofdm_register(d, reghi, &temp1))) |
| return ret; |
| switch (pos) { |
| case 0: |
| *value = ((u16) (temp1 & 0x03) << 8) + (u16) temp0; |
| break; |
| case 2: |
| *value = ((u16) (temp1 & 0x0C) << 6) + (u16) temp0; |
| break; |
| case 4: |
| *value = ((u16) (temp1 & 0x30) << 4) + (u16) temp0; |
| break; |
| case 6: |
| *value = ((u16) (temp1 & 0xC0) << 2) + (u16) temp0; |
| break; |
| default: |
| err("invalid pos in read word agc"); |
| return -EINVAL; |
| } |
| return 0; |
| |
| } |
| |
| static int af9005_is_fecmon_available(struct dvb_frontend *fe, int *available) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| int ret; |
| u8 temp; |
| |
| *available = false; |
| |
| ret = af9005_read_register_bits(state->d, xd_p_fec_vtb_rsd_mon_en, |
| fec_vtb_rsd_mon_en_pos, |
| fec_vtb_rsd_mon_en_len, &temp); |
| if (ret) |
| return ret; |
| if (temp & 1) { |
| ret = |
| af9005_read_register_bits(state->d, |
| xd_p_reg_ofsm_read_rbc_en, |
| reg_ofsm_read_rbc_en_pos, |
| reg_ofsm_read_rbc_en_len, &temp); |
| if (ret) |
| return ret; |
| if ((temp & 1) == 0) |
| *available = true; |
| |
| } |
| return 0; |
| } |
| |
| static int af9005_get_post_vit_err_cw_count(struct dvb_frontend *fe, |
| u32 * post_err_count, |
| u32 * post_cw_count, |
| u16 * abort_count) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| int ret; |
| u32 err_count; |
| u32 cw_count; |
| u8 temp, temp0, temp1, temp2; |
| u16 loc_abort_count; |
| |
| *post_err_count = 0; |
| *post_cw_count = 0; |
| |
| /* check if error bit count is ready */ |
| ret = |
| af9005_read_register_bits(state->d, xd_r_fec_rsd_ber_rdy, |
| fec_rsd_ber_rdy_pos, fec_rsd_ber_rdy_len, |
| &temp); |
| if (ret) |
| return ret; |
| if (!temp) { |
| deb_info("rsd counter not ready\n"); |
| return 100; |
| } |
| /* get abort count */ |
| ret = |
| af9005_read_ofdm_register(state->d, |
| xd_r_fec_rsd_abort_packet_cnt_7_0, |
| &temp0); |
| if (ret) |
| return ret; |
| ret = |
| af9005_read_ofdm_register(state->d, |
| xd_r_fec_rsd_abort_packet_cnt_15_8, |
| &temp1); |
| if (ret) |
| return ret; |
| loc_abort_count = ((u16) temp1 << 8) + temp0; |
| |
| /* get error count */ |
| ret = |
| af9005_read_ofdm_register(state->d, xd_r_fec_rsd_bit_err_cnt_7_0, |
| &temp0); |
| if (ret) |
| return ret; |
| ret = |
| af9005_read_ofdm_register(state->d, xd_r_fec_rsd_bit_err_cnt_15_8, |
| &temp1); |
| if (ret) |
| return ret; |
| ret = |
| af9005_read_ofdm_register(state->d, xd_r_fec_rsd_bit_err_cnt_23_16, |
| &temp2); |
| if (ret) |
| return ret; |
| err_count = ((u32) temp2 << 16) + ((u32) temp1 << 8) + temp0; |
| *post_err_count = err_count - (u32) loc_abort_count *8 * 8; |
| |
| /* get RSD packet number */ |
| ret = |
| af9005_read_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_7_0, |
| &temp0); |
| if (ret) |
| return ret; |
| ret = |
| af9005_read_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_15_8, |
| &temp1); |
| if (ret) |
| return ret; |
| cw_count = ((u32) temp1 << 8) + temp0; |
| if (cw_count == 0) { |
| err("wrong RSD packet count"); |
| return -EIO; |
| } |
| deb_info("POST abort count %d err count %d rsd packets %d\n", |
| loc_abort_count, err_count, cw_count); |
| *post_cw_count = cw_count - (u32) loc_abort_count; |
| *abort_count = loc_abort_count; |
| return 0; |
| |
| } |
| |
| static int af9005_get_post_vit_ber(struct dvb_frontend *fe, |
| u32 * post_err_count, u32 * post_cw_count, |
| u16 * abort_count) |
| { |
| u32 loc_cw_count = 0, loc_err_count; |
| u16 loc_abort_count; |
| int ret; |
| |
| ret = |
| af9005_get_post_vit_err_cw_count(fe, &loc_err_count, &loc_cw_count, |
| &loc_abort_count); |
| if (ret) |
| return ret; |
| *post_err_count = loc_err_count; |
| *post_cw_count = loc_cw_count * 204 * 8; |
| *abort_count = loc_abort_count; |
| |
| return 0; |
| } |
| |
| static int af9005_get_pre_vit_err_bit_count(struct dvb_frontend *fe, |
| u32 * pre_err_count, |
| u32 * pre_bit_count) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| u8 temp, temp0, temp1, temp2; |
| u32 super_frame_count, x, bits; |
| int ret; |
| |
| ret = |
| af9005_read_register_bits(state->d, xd_r_fec_vtb_ber_rdy, |
| fec_vtb_ber_rdy_pos, fec_vtb_ber_rdy_len, |
| &temp); |
| if (ret) |
| return ret; |
| if (!temp) { |
| deb_info("viterbi counter not ready\n"); |
| return 101; /* ERR_APO_VTB_COUNTER_NOT_READY; */ |
| } |
| ret = |
| af9005_read_ofdm_register(state->d, xd_r_fec_vtb_err_bit_cnt_7_0, |
| &temp0); |
| if (ret) |
| return ret; |
| ret = |
| af9005_read_ofdm_register(state->d, xd_r_fec_vtb_err_bit_cnt_15_8, |
| &temp1); |
| if (ret) |
| return ret; |
| ret = |
| af9005_read_ofdm_register(state->d, xd_r_fec_vtb_err_bit_cnt_23_16, |
| &temp2); |
| if (ret) |
| return ret; |
| *pre_err_count = ((u32) temp2 << 16) + ((u32) temp1 << 8) + temp0; |
| |
| ret = |
| af9005_read_ofdm_register(state->d, xd_p_fec_super_frm_unit_7_0, |
| &temp0); |
| if (ret) |
| return ret; |
| ret = |
| af9005_read_ofdm_register(state->d, xd_p_fec_super_frm_unit_15_8, |
| &temp1); |
| if (ret) |
| return ret; |
| super_frame_count = ((u32) temp1 << 8) + temp0; |
| if (super_frame_count == 0) { |
| deb_info("super frame count 0\n"); |
| return 102; |
| } |
| |
| /* read fft mode */ |
| ret = |
| af9005_read_register_bits(state->d, xd_g_reg_tpsd_txmod, |
| reg_tpsd_txmod_pos, reg_tpsd_txmod_len, |
| &temp); |
| if (ret) |
| return ret; |
| if (temp == 0) { |
| /* 2K */ |
| x = 1512; |
| } else if (temp == 1) { |
| /* 8k */ |
| x = 6048; |
| } else { |
| err("Invalid fft mode"); |
| return -EINVAL; |
| } |
| |
| /* read constellation mode */ |
| ret = |
| af9005_read_register_bits(state->d, xd_g_reg_tpsd_const, |
| reg_tpsd_const_pos, reg_tpsd_const_len, |
| &temp); |
| if (ret) |
| return ret; |
| switch (temp) { |
| case 0: /* QPSK */ |
| bits = 2; |
| break; |
| case 1: /* QAM_16 */ |
| bits = 4; |
| break; |
| case 2: /* QAM_64 */ |
| bits = 6; |
| break; |
| default: |
| err("invalid constellation mode"); |
| return -EINVAL; |
| } |
| *pre_bit_count = super_frame_count * 68 * 4 * x * bits; |
| deb_info("PRE err count %d frame count %d bit count %d\n", |
| *pre_err_count, super_frame_count, *pre_bit_count); |
| return 0; |
| } |
| |
| static int af9005_reset_pre_viterbi(struct dvb_frontend *fe) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| int ret; |
| |
| /* set super frame count to 1 */ |
| ret = |
| af9005_write_ofdm_register(state->d, xd_p_fec_super_frm_unit_7_0, |
| 1 & 0xff); |
| if (ret) |
| return ret; |
| ret = af9005_write_ofdm_register(state->d, xd_p_fec_super_frm_unit_15_8, |
| 1 >> 8); |
| if (ret) |
| return ret; |
| /* reset pre viterbi error count */ |
| ret = |
| af9005_write_register_bits(state->d, xd_p_fec_vtb_ber_rst, |
| fec_vtb_ber_rst_pos, fec_vtb_ber_rst_len, |
| 1); |
| |
| return ret; |
| } |
| |
| static int af9005_reset_post_viterbi(struct dvb_frontend *fe) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| int ret; |
| |
| /* set packet unit */ |
| ret = |
| af9005_write_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_7_0, |
| 10000 & 0xff); |
| if (ret) |
| return ret; |
| ret = |
| af9005_write_ofdm_register(state->d, xd_p_fec_rsd_packet_unit_15_8, |
| 10000 >> 8); |
| if (ret) |
| return ret; |
| /* reset post viterbi error count */ |
| ret = |
| af9005_write_register_bits(state->d, xd_p_fec_rsd_ber_rst, |
| fec_rsd_ber_rst_pos, fec_rsd_ber_rst_len, |
| 1); |
| |
| return ret; |
| } |
| |
| static int af9005_get_statistic(struct dvb_frontend *fe) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| int ret, fecavailable; |
| u64 numerator, denominator; |
| |
| deb_info("GET STATISTIC\n"); |
| ret = af9005_is_fecmon_available(fe, &fecavailable); |
| if (ret) |
| return ret; |
| if (!fecavailable) { |
| deb_info("fecmon not available\n"); |
| return 0; |
| } |
| |
| ret = af9005_get_pre_vit_err_bit_count(fe, &state->pre_vit_error_count, |
| &state->pre_vit_bit_count); |
| if (ret == 0) { |
| af9005_reset_pre_viterbi(fe); |
| if (state->pre_vit_bit_count > 0) { |
| /* according to v 0.0.4 of the dvb api ber should be a multiple |
| of 10E-9 so we have to multiply the error count by |
| 10E9=1000000000 */ |
| numerator = |
| (u64) state->pre_vit_error_count * (u64) 1000000000; |
| denominator = (u64) state->pre_vit_bit_count; |
| state->ber = do_div(numerator, denominator); |
| } else { |
| state->ber = 0xffffffff; |
| } |
| } |
| |
| ret = af9005_get_post_vit_ber(fe, &state->post_vit_error_count, |
| &state->post_vit_bit_count, |
| &state->abort_count); |
| if (ret == 0) { |
| ret = af9005_reset_post_viterbi(fe); |
| state->unc += state->abort_count; |
| if (ret) |
| return ret; |
| } |
| return 0; |
| } |
| |
| static int af9005_fe_refresh_state(struct dvb_frontend *fe) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| if (time_after(jiffies, state->next_status_check)) { |
| deb_info("REFRESH STATE\n"); |
| |
| /* statistics */ |
| if (af9005_get_statistic(fe)) |
| err("get_statistic_failed"); |
| state->next_status_check = jiffies + 250 * HZ / 1000; |
| } |
| return 0; |
| } |
| |
| static int af9005_fe_read_status(struct dvb_frontend *fe, fe_status_t * stat) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| u8 temp; |
| int ret; |
| |
| if (fe->ops.tuner_ops.release == NULL) |
| return -ENODEV; |
| |
| *stat = 0; |
| ret = af9005_read_register_bits(state->d, xd_p_agc_lock, |
| agc_lock_pos, agc_lock_len, &temp); |
| if (ret) |
| return ret; |
| if (temp) |
| *stat |= FE_HAS_SIGNAL; |
| |
| ret = af9005_read_register_bits(state->d, xd_p_fd_tpsd_lock, |
| fd_tpsd_lock_pos, fd_tpsd_lock_len, |
| &temp); |
| if (ret) |
| return ret; |
| if (temp) |
| *stat |= FE_HAS_CARRIER; |
| |
| ret = af9005_read_register_bits(state->d, |
| xd_r_mp2if_sync_byte_locked, |
| mp2if_sync_byte_locked_pos, |
| mp2if_sync_byte_locked_pos, &temp); |
| if (ret) |
| return ret; |
| if (temp) |
| *stat |= FE_HAS_SYNC | FE_HAS_VITERBI | FE_HAS_LOCK; |
| if (state->opened) |
| af9005_led_control(state->d, *stat & FE_HAS_LOCK); |
| |
| ret = |
| af9005_read_register_bits(state->d, xd_p_reg_strong_sginal_detected, |
| reg_strong_sginal_detected_pos, |
| reg_strong_sginal_detected_len, &temp); |
| if (ret) |
| return ret; |
| if (temp != state->strong) { |
| deb_info("adjust for strong signal %d\n", temp); |
| state->strong = temp; |
| } |
| return 0; |
| } |
| |
| static int af9005_fe_read_ber(struct dvb_frontend *fe, u32 * ber) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| if (fe->ops.tuner_ops.release == NULL) |
| return -ENODEV; |
| af9005_fe_refresh_state(fe); |
| *ber = state->ber; |
| return 0; |
| } |
| |
| static int af9005_fe_read_unc_blocks(struct dvb_frontend *fe, u32 * unc) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| if (fe->ops.tuner_ops.release == NULL) |
| return -ENODEV; |
| af9005_fe_refresh_state(fe); |
| *unc = state->unc; |
| return 0; |
| } |
| |
| static int af9005_fe_read_signal_strength(struct dvb_frontend *fe, |
| u16 * strength) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| int ret; |
| u8 if_gain, rf_gain; |
| |
| if (fe->ops.tuner_ops.release == NULL) |
| return -ENODEV; |
| ret = |
| af9005_read_ofdm_register(state->d, xd_r_reg_aagc_rf_gain, |
| &rf_gain); |
| if (ret) |
| return ret; |
| ret = |
| af9005_read_ofdm_register(state->d, xd_r_reg_aagc_if_gain, |
| &if_gain); |
| if (ret) |
| return ret; |
| /* this value has no real meaning, but i don't have the tables that relate |
| the rf and if gain with the dbm, so I just scale the value */ |
| *strength = (512 - rf_gain - if_gain) << 7; |
| return 0; |
| } |
| |
| static int af9005_fe_read_snr(struct dvb_frontend *fe, u16 * snr) |
| { |
| /* the snr can be derived from the ber and the constellation |
| but I don't think this kind of complex calculations belong |
| in the driver. I may be wrong.... */ |
| return -ENOSYS; |
| } |
| |
| static int af9005_fe_program_cfoe(struct dvb_usb_device *d, fe_bandwidth_t bw) |
| { |
| u8 temp0, temp1, temp2, temp3, buf[4]; |
| int ret; |
| u32 NS_coeff1_2048Nu; |
| u32 NS_coeff1_8191Nu; |
| u32 NS_coeff1_8192Nu; |
| u32 NS_coeff1_8193Nu; |
| u32 NS_coeff2_2k; |
| u32 NS_coeff2_8k; |
| |
| switch (bw) { |
| case BANDWIDTH_6_MHZ: |
| NS_coeff1_2048Nu = 0x2ADB6DC; |
| NS_coeff1_8191Nu = 0xAB7313; |
| NS_coeff1_8192Nu = 0xAB6DB7; |
| NS_coeff1_8193Nu = 0xAB685C; |
| NS_coeff2_2k = 0x156DB6E; |
| NS_coeff2_8k = 0x55B6DC; |
| break; |
| |
| case BANDWIDTH_7_MHZ: |
| NS_coeff1_2048Nu = 0x3200001; |
| NS_coeff1_8191Nu = 0xC80640; |
| NS_coeff1_8192Nu = 0xC80000; |
| NS_coeff1_8193Nu = 0xC7F9C0; |
| NS_coeff2_2k = 0x1900000; |
| NS_coeff2_8k = 0x640000; |
| break; |
| |
| case BANDWIDTH_8_MHZ: |
| NS_coeff1_2048Nu = 0x3924926; |
| NS_coeff1_8191Nu = 0xE4996E; |
| NS_coeff1_8192Nu = 0xE49249; |
| NS_coeff1_8193Nu = 0xE48B25; |
| NS_coeff2_2k = 0x1C92493; |
| NS_coeff2_8k = 0x724925; |
| break; |
| default: |
| err("Invalid bandwith %d.", bw); |
| return -EINVAL; |
| } |
| |
| /* |
| * write NS_coeff1_2048Nu |
| */ |
| |
| temp0 = (u8) (NS_coeff1_2048Nu & 0x000000FF); |
| temp1 = (u8) ((NS_coeff1_2048Nu & 0x0000FF00) >> 8); |
| temp2 = (u8) ((NS_coeff1_2048Nu & 0x00FF0000) >> 16); |
| temp3 = (u8) ((NS_coeff1_2048Nu & 0x03000000) >> 24); |
| |
| /* big endian to make 8051 happy */ |
| buf[0] = temp3; |
| buf[1] = temp2; |
| buf[2] = temp1; |
| buf[3] = temp0; |
| |
| /* cfoe_NS_2k_coeff1_25_24 */ |
| ret = af9005_write_ofdm_register(d, 0xAE00, buf[0]); |
| if (ret) |
| return ret; |
| |
| /* cfoe_NS_2k_coeff1_23_16 */ |
| ret = af9005_write_ofdm_register(d, 0xAE01, buf[1]); |
| if (ret) |
| return ret; |
| |
| /* cfoe_NS_2k_coeff1_15_8 */ |
| ret = af9005_write_ofdm_register(d, 0xAE02, buf[2]); |
| if (ret) |
| return ret; |
| |
| /* cfoe_NS_2k_coeff1_7_0 */ |
| ret = af9005_write_ofdm_register(d, 0xAE03, buf[3]); |
| if (ret) |
| return ret; |
| |
| /* |
| * write NS_coeff2_2k |
| */ |
| |
| temp0 = (u8) ((NS_coeff2_2k & 0x0000003F)); |
| temp1 = (u8) ((NS_coeff2_2k & 0x00003FC0) >> 6); |
| temp2 = (u8) ((NS_coeff2_2k & 0x003FC000) >> 14); |
| temp3 = (u8) ((NS_coeff2_2k & 0x01C00000) >> 22); |
| |
| /* big endian to make 8051 happy */ |
| buf[0] = temp3; |
| buf[1] = temp2; |
| buf[2] = temp1; |
| buf[3] = temp0; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE04, buf[0]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE05, buf[1]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE06, buf[2]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE07, buf[3]); |
| if (ret) |
| return ret; |
| |
| /* |
| * write NS_coeff1_8191Nu |
| */ |
| |
| temp0 = (u8) ((NS_coeff1_8191Nu & 0x000000FF)); |
| temp1 = (u8) ((NS_coeff1_8191Nu & 0x0000FF00) >> 8); |
| temp2 = (u8) ((NS_coeff1_8191Nu & 0x00FFC000) >> 16); |
| temp3 = (u8) ((NS_coeff1_8191Nu & 0x03000000) >> 24); |
| |
| /* big endian to make 8051 happy */ |
| buf[0] = temp3; |
| buf[1] = temp2; |
| buf[2] = temp1; |
| buf[3] = temp0; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE08, buf[0]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE09, buf[1]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE0A, buf[2]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE0B, buf[3]); |
| if (ret) |
| return ret; |
| |
| /* |
| * write NS_coeff1_8192Nu |
| */ |
| |
| temp0 = (u8) (NS_coeff1_8192Nu & 0x000000FF); |
| temp1 = (u8) ((NS_coeff1_8192Nu & 0x0000FF00) >> 8); |
| temp2 = (u8) ((NS_coeff1_8192Nu & 0x00FFC000) >> 16); |
| temp3 = (u8) ((NS_coeff1_8192Nu & 0x03000000) >> 24); |
| |
| /* big endian to make 8051 happy */ |
| buf[0] = temp3; |
| buf[1] = temp2; |
| buf[2] = temp1; |
| buf[3] = temp0; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE0C, buf[0]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE0D, buf[1]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE0E, buf[2]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE0F, buf[3]); |
| if (ret) |
| return ret; |
| |
| /* |
| * write NS_coeff1_8193Nu |
| */ |
| |
| temp0 = (u8) ((NS_coeff1_8193Nu & 0x000000FF)); |
| temp1 = (u8) ((NS_coeff1_8193Nu & 0x0000FF00) >> 8); |
| temp2 = (u8) ((NS_coeff1_8193Nu & 0x00FFC000) >> 16); |
| temp3 = (u8) ((NS_coeff1_8193Nu & 0x03000000) >> 24); |
| |
| /* big endian to make 8051 happy */ |
| buf[0] = temp3; |
| buf[1] = temp2; |
| buf[2] = temp1; |
| buf[3] = temp0; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE10, buf[0]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE11, buf[1]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE12, buf[2]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE13, buf[3]); |
| if (ret) |
| return ret; |
| |
| /* |
| * write NS_coeff2_8k |
| */ |
| |
| temp0 = (u8) ((NS_coeff2_8k & 0x0000003F)); |
| temp1 = (u8) ((NS_coeff2_8k & 0x00003FC0) >> 6); |
| temp2 = (u8) ((NS_coeff2_8k & 0x003FC000) >> 14); |
| temp3 = (u8) ((NS_coeff2_8k & 0x01C00000) >> 22); |
| |
| /* big endian to make 8051 happy */ |
| buf[0] = temp3; |
| buf[1] = temp2; |
| buf[2] = temp1; |
| buf[3] = temp0; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE14, buf[0]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE15, buf[1]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE16, buf[2]); |
| if (ret) |
| return ret; |
| |
| ret = af9005_write_ofdm_register(d, 0xAE17, buf[3]); |
| return ret; |
| |
| } |
| |
| static int af9005_fe_select_bw(struct dvb_usb_device *d, fe_bandwidth_t bw) |
| { |
| u8 temp; |
| switch (bw) { |
| case BANDWIDTH_6_MHZ: |
| temp = 0; |
| break; |
| case BANDWIDTH_7_MHZ: |
| temp = 1; |
| break; |
| case BANDWIDTH_8_MHZ: |
| temp = 2; |
| break; |
| default: |
| err("Invalid bandwith %d.", bw); |
| return -EINVAL; |
| } |
| return af9005_write_register_bits(d, xd_g_reg_bw, reg_bw_pos, |
| reg_bw_len, temp); |
| } |
| |
| static int af9005_fe_power(struct dvb_frontend *fe, int on) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| u8 temp = on; |
| int ret; |
| deb_info("power %s tuner\n", on ? "on" : "off"); |
| ret = af9005_send_command(state->d, 0x03, &temp, 1, NULL, 0); |
| return ret; |
| } |
| |
| static struct mt2060_config af9005_mt2060_config = { |
| 0xC0 |
| }; |
| |
| static struct qt1010_config af9005_qt1010_config = { |
| 0xC4 |
| }; |
| |
| static int af9005_fe_init(struct dvb_frontend *fe) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| struct dvb_usb_adapter *adap = fe->dvb->priv; |
| int ret, i, scriptlen; |
| u8 temp, temp0 = 0, temp1 = 0, temp2 = 0; |
| u8 buf[2]; |
| u16 if1; |
| |
| deb_info("in af9005_fe_init\n"); |
| |
| /* reset */ |
| deb_info("reset\n"); |
| if ((ret = |
| af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst_en, |
| 4, 1, 0x01))) |
| return ret; |
| if ((ret = af9005_write_ofdm_register(state->d, APO_REG_RESET, 0))) |
| return ret; |
| /* clear ofdm reset */ |
| deb_info("clear ofdm reset\n"); |
| for (i = 0; i < 150; i++) { |
| if ((ret = |
| af9005_read_ofdm_register(state->d, |
| xd_I2C_reg_ofdm_rst, &temp))) |
| return ret; |
| if (temp & (regmask[reg_ofdm_rst_len - 1] << reg_ofdm_rst_pos)) |
| break; |
| msleep(10); |
| } |
| if (i == 150) |
| return -ETIMEDOUT; |
| |
| /*FIXME in the dump |
| write B200 A9 |
| write xd_g_reg_ofsm_clk 7 |
| read eepr c6 (2) |
| read eepr c7 (2) |
| misc ctrl 3 -> 1 |
| read eepr ca (6) |
| write xd_g_reg_ofsm_clk 0 |
| write B200 a1 |
| */ |
| ret = af9005_write_ofdm_register(state->d, 0xb200, 0xa9); |
| if (ret) |
| return ret; |
| ret = af9005_write_ofdm_register(state->d, xd_g_reg_ofsm_clk, 0x07); |
| if (ret) |
| return ret; |
| temp = 0x01; |
| ret = af9005_send_command(state->d, 0x03, &temp, 1, NULL, 0); |
| if (ret) |
| return ret; |
| ret = af9005_write_ofdm_register(state->d, xd_g_reg_ofsm_clk, 0x00); |
| if (ret) |
| return ret; |
| ret = af9005_write_ofdm_register(state->d, 0xb200, 0xa1); |
| if (ret) |
| return ret; |
| |
| temp = regmask[reg_ofdm_rst_len - 1] << reg_ofdm_rst_pos; |
| if ((ret = |
| af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst, |
| reg_ofdm_rst_pos, reg_ofdm_rst_len, 1))) |
| return ret; |
| ret = af9005_write_register_bits(state->d, xd_I2C_reg_ofdm_rst, |
| reg_ofdm_rst_pos, reg_ofdm_rst_len, 0); |
| |
| if (ret) |
| return ret; |
| /* don't know what register aefc is, but this is what the windows driver does */ |
| ret = af9005_write_ofdm_register(state->d, 0xaefc, 0); |
| if (ret) |
| return ret; |
| |
| /* set stand alone chip */ |
| deb_info("set stand alone chip\n"); |
| if ((ret = |
| af9005_write_register_bits(state->d, xd_p_reg_dca_stand_alone, |
| reg_dca_stand_alone_pos, |
| reg_dca_stand_alone_len, 1))) |
| return ret; |
| |
| /* set dca upper & lower chip */ |
| deb_info("set dca upper & lower chip\n"); |
| if ((ret = |
| af9005_write_register_bits(state->d, xd_p_reg_dca_upper_chip, |
| reg_dca_upper_chip_pos, |
| reg_dca_upper_chip_len, 0))) |
| return ret; |
| if ((ret = |
| af9005_write_register_bits(state->d, xd_p_reg_dca_lower_chip, |
| reg_dca_lower_chip_pos, |
| reg_dca_lower_chip_len, 0))) |
| return ret; |
| |
| /* set 2wire master clock to 0x14 (for 60KHz) */ |
| deb_info("set 2wire master clock to 0x14 (for 60KHz)\n"); |
| if ((ret = |
| af9005_write_ofdm_register(state->d, xd_I2C_i2c_m_period, 0x14))) |
| return ret; |
| |
| /* clear dca enable chip */ |
| deb_info("clear dca enable chip\n"); |
| if ((ret = |
| af9005_write_register_bits(state->d, xd_p_reg_dca_en, |
| reg_dca_en_pos, reg_dca_en_len, 0))) |
| return ret; |
| /* FIXME these are register bits, but I don't know which ones */ |
| ret = af9005_write_ofdm_register(state->d, 0xa16c, 1); |
| if (ret) |
| return ret; |
| ret = af9005_write_ofdm_register(state->d, 0xa3c1, 0); |
| if (ret) |
| return ret; |
| |
| /* init other parameters: program cfoe and select bandwith */ |
| deb_info("program cfoe\n"); |
| if ((ret = af9005_fe_program_cfoe(state->d, BANDWIDTH_6_MHZ))) |
| return ret; |
| /* set read-update bit for constellation */ |
| deb_info("set read-update bit for constellation\n"); |
| if ((ret = |
| af9005_write_register_bits(state->d, xd_p_reg_feq_read_update, |
| reg_feq_read_update_pos, |
| reg_feq_read_update_len, 1))) |
| return ret; |
| |
| /* sample code has a set MPEG TS code here |
| but sniffing reveals that it doesn't do it */ |
| |
| /* set read-update bit to 1 for DCA constellation */ |
| deb_info("set read-update bit 1 for DCA constellation\n"); |
| if ((ret = |
| af9005_write_register_bits(state->d, xd_p_reg_dca_read_update, |
| reg_dca_read_update_pos, |
| reg_dca_read_update_len, 1))) |
| return ret; |
| |
| /* enable fec monitor */ |
| deb_info("enable fec monitor\n"); |
| if ((ret = |
| af9005_write_register_bits(state->d, xd_p_fec_vtb_rsd_mon_en, |
| fec_vtb_rsd_mon_en_pos, |
| fec_vtb_rsd_mon_en_len, 1))) |
| return ret; |
| |
| /* FIXME should be register bits, I don't know which ones */ |
| ret = af9005_write_ofdm_register(state->d, 0xa601, 0); |
| |
| /* set api_retrain_never_freeze */ |
| deb_info("set api_retrain_never_freeze\n"); |
| if ((ret = af9005_write_ofdm_register(state->d, 0xaefb, 0x01))) |
| return ret; |
| |
| /* load init script */ |
| deb_info("load init script\n"); |
| scriptlen = sizeof(script) / sizeof(RegDesc); |
| for (i = 0; i < scriptlen; i++) { |
| if ((ret = |
| af9005_write_register_bits(state->d, script[i].reg, |
| script[i].pos, |
| script[i].len, script[i].val))) |
| return ret; |
| /* save 3 bytes of original fcw */ |
| if (script[i].reg == 0xae18) |
| temp2 = script[i].val; |
| if (script[i].reg == 0xae19) |
| temp1 = script[i].val; |
| if (script[i].reg == 0xae1a) |
| temp0 = script[i].val; |
| |
| /* save original unplug threshold */ |
| if (script[i].reg == xd_p_reg_unplug_th) |
| state->original_if_unplug_th = script[i].val; |
| if (script[i].reg == xd_p_reg_unplug_rf_gain_th) |
| state->original_rf_unplug_th = script[i].val; |
| if (script[i].reg == xd_p_reg_unplug_dtop_if_gain_th) |
| state->original_dtop_if_unplug_th = script[i].val; |
| if (script[i].reg == xd_p_reg_unplug_dtop_rf_gain_th) |
| state->original_dtop_rf_unplug_th = script[i].val; |
| |
| } |
| state->original_fcw = |
| ((u32) temp2 << 16) + ((u32) temp1 << 8) + (u32) temp0; |
| |
| |
| /* save original TOPs */ |
| deb_info("save original TOPs\n"); |
| |
| /* RF TOP */ |
| ret = |
| af9005_read_word_agc(state->d, |
| xd_p_reg_aagc_rf_top_numerator_9_8, |
| xd_p_reg_aagc_rf_top_numerator_7_0, 0, 2, |
| &state->original_rf_top); |
| if (ret) |
| return ret; |
| |
| /* IF TOP */ |
| ret = |
| af9005_read_word_agc(state->d, |
| xd_p_reg_aagc_if_top_numerator_9_8, |
| xd_p_reg_aagc_if_top_numerator_7_0, 0, 2, |
| &state->original_if_top); |
| if (ret) |
| return ret; |
| |
| /* ACI 0 IF TOP */ |
| ret = |
| af9005_read_word_agc(state->d, 0xA60E, 0xA60A, 4, 2, |
| &state->original_aci0_if_top); |
| if (ret) |
| return ret; |
| |
| /* ACI 1 IF TOP */ |
| ret = |
| af9005_read_word_agc(state->d, 0xA60E, 0xA60B, 6, 2, |
| &state->original_aci1_if_top); |
| if (ret) |
| return ret; |
| |
| /* attach tuner and init */ |
| if (fe->ops.tuner_ops.release == NULL) { |
| /* read tuner and board id from eeprom */ |
| ret = af9005_read_eeprom(adap->dev, 0xc6, buf, 2); |
| if (ret) { |
| err("Impossible to read EEPROM\n"); |
| return ret; |
| } |
| deb_info("Tuner id %d, board id %d\n", buf[0], buf[1]); |
| switch (buf[0]) { |
| case 2: /* MT2060 */ |
| /* read if1 from eeprom */ |
| ret = af9005_read_eeprom(adap->dev, 0xc8, buf, 2); |
| if (ret) { |
| err("Impossible to read EEPROM\n"); |
| return ret; |
| } |
| if1 = (u16) (buf[0] << 8) + buf[1]; |
| if (dvb_attach(mt2060_attach, fe, &adap->dev->i2c_adap, |
| &af9005_mt2060_config, if1) == NULL) { |
| deb_info("MT2060 attach failed\n"); |
| return -ENODEV; |
| } |
| break; |
| case 3: /* QT1010 */ |
| case 9: /* QT1010B */ |
| if (dvb_attach(qt1010_attach, fe, &adap->dev->i2c_adap, |
| &af9005_qt1010_config) ==NULL) { |
| deb_info("QT1010 attach failed\n"); |
| return -ENODEV; |
| } |
| break; |
| default: |
| err("Unsupported tuner type %d", buf[0]); |
| return -ENODEV; |
| } |
| ret = fe->ops.tuner_ops.init(fe); |
| if (ret) |
| return ret; |
| } |
| |
| deb_info("profit!\n"); |
| return 0; |
| } |
| |
| static int af9005_fe_sleep(struct dvb_frontend *fe) |
| { |
| return af9005_fe_power(fe, 0); |
| } |
| |
| static int af9005_ts_bus_ctrl(struct dvb_frontend *fe, int acquire) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| |
| if (acquire) { |
| state->opened++; |
| } else { |
| |
| state->opened--; |
| if (!state->opened) |
| af9005_led_control(state->d, 0); |
| } |
| return 0; |
| } |
| |
| static int af9005_fe_set_frontend(struct dvb_frontend *fe, |
| struct dvb_frontend_parameters *fep) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| int ret; |
| u8 temp, temp0, temp1, temp2; |
| |
| deb_info("af9005_fe_set_frontend freq %d bw %d\n", fep->frequency, |
| fep->u.ofdm.bandwidth); |
| if (fe->ops.tuner_ops.release == NULL) { |
| err("Tuner not attached"); |
| return -ENODEV; |
| } |
| |
| deb_info("turn off led\n"); |
| /* not in the log */ |
| ret = af9005_led_control(state->d, 0); |
| if (ret) |
| return ret; |
| /* not sure about the bits */ |
| ret = af9005_write_register_bits(state->d, XD_MP2IF_MISC, 2, 1, 0); |
| if (ret) |
| return ret; |
| |
| /* set FCW to default value */ |
| deb_info("set FCW to default value\n"); |
| temp0 = (u8) (state->original_fcw & 0x000000ff); |
| temp1 = (u8) ((state->original_fcw & 0x0000ff00) >> 8); |
| temp2 = (u8) ((state->original_fcw & 0x00ff0000) >> 16); |
| ret = af9005_write_ofdm_register(state->d, 0xae1a, temp0); |
| if (ret) |
| return ret; |
| ret = af9005_write_ofdm_register(state->d, 0xae19, temp1); |
| if (ret) |
| return ret; |
| ret = af9005_write_ofdm_register(state->d, 0xae18, temp2); |
| if (ret) |
| return ret; |
| |
| /* restore original TOPs */ |
| deb_info("restore original TOPs\n"); |
| ret = |
| af9005_write_word_agc(state->d, |
| xd_p_reg_aagc_rf_top_numerator_9_8, |
| xd_p_reg_aagc_rf_top_numerator_7_0, 0, 2, |
| state->original_rf_top); |
| if (ret) |
| return ret; |
| ret = |
| af9005_write_word_agc(state->d, |
| xd_p_reg_aagc_if_top_numerator_9_8, |
| xd_p_reg_aagc_if_top_numerator_7_0, 0, 2, |
| state->original_if_top); |
| if (ret) |
| return ret; |
| ret = |
| af9005_write_word_agc(state->d, 0xA60E, 0xA60A, 4, 2, |
| state->original_aci0_if_top); |
| if (ret) |
| return ret; |
| ret = |
| af9005_write_word_agc(state->d, 0xA60E, 0xA60B, 6, 2, |
| state->original_aci1_if_top); |
| if (ret) |
| return ret; |
| |
| /* select bandwith */ |
| deb_info("select bandwidth"); |
| ret = af9005_fe_select_bw(state->d, fep->u.ofdm.bandwidth); |
| if (ret) |
| return ret; |
| ret = af9005_fe_program_cfoe(state->d, fep->u.ofdm.bandwidth); |
| if (ret) |
| return ret; |
| |
| /* clear easy mode flag */ |
| deb_info("clear easy mode flag\n"); |
| ret = af9005_write_ofdm_register(state->d, 0xaefd, 0); |
| if (ret) |
| return ret; |
| |
| /* set unplug threshold to original value */ |
| deb_info("set unplug threshold to original value\n"); |
| ret = |
| af9005_write_ofdm_register(state->d, xd_p_reg_unplug_th, |
| state->original_if_unplug_th); |
| if (ret) |
| return ret; |
| /* set tuner */ |
| deb_info("set tuner\n"); |
| ret = fe->ops.tuner_ops.set_params(fe, fep); |
| if (ret) |
| return ret; |
| |
| /* trigger ofsm */ |
| deb_info("trigger ofsm\n"); |
| temp = 0; |
| ret = af9005_write_tuner_registers(state->d, 0xffff, &temp, 1); |
| if (ret) |
| return ret; |
| |
| /* clear retrain and freeze flag */ |
| deb_info("clear retrain and freeze flag\n"); |
| ret = |
| af9005_write_register_bits(state->d, |
| xd_p_reg_api_retrain_request, |
| reg_api_retrain_request_pos, 2, 0); |
| if (ret) |
| return ret; |
| |
| /* reset pre viterbi and post viterbi registers and statistics */ |
| af9005_reset_pre_viterbi(fe); |
| af9005_reset_post_viterbi(fe); |
| state->pre_vit_error_count = 0; |
| state->pre_vit_bit_count = 0; |
| state->ber = 0; |
| state->post_vit_error_count = 0; |
| /* state->unc = 0; commented out since it should be ever increasing */ |
| state->abort_count = 0; |
| |
| state->next_status_check = jiffies; |
| state->strong = -1; |
| |
| return 0; |
| } |
| |
| static int af9005_fe_get_frontend(struct dvb_frontend *fe, |
| struct dvb_frontend_parameters *fep) |
| { |
| struct af9005_fe_state *state = fe->demodulator_priv; |
| int ret; |
| u8 temp; |
| |
| /* mode */ |
| ret = |
| af9005_read_register_bits(state->d, xd_g_reg_tpsd_const, |
| reg_tpsd_const_pos, reg_tpsd_const_len, |
| &temp); |
| if (ret) |
| return ret; |
| deb_info("===== fe_get_frontend ==============\n"); |
| deb_info("CONSTELLATION "); |
| switch (temp) { |
| case 0: |
| fep->u.ofdm.constellation = QPSK; |
| deb_info("QPSK\n"); |
| break; |
| case 1: |
| fep->u.ofdm.constellation = QAM_16; |
| deb_info("QAM_16\n"); |
| break; |
| case 2: |
| fep->u.ofdm.constellation = QAM_64; |
| deb_info("QAM_64\n"); |
| break; |
| } |
| |
| /* tps hierarchy and alpha value */ |
| ret = |
| af9005_read_register_bits(state->d, xd_g_reg_tpsd_hier, |
| reg_tpsd_hier_pos, reg_tpsd_hier_len, |
| &temp); |
| if (ret) |
| return ret; |
| deb_info("HIERARCHY "); |
| switch (temp) { |
| case 0: |
| fep->u.ofdm.hierarchy_information = HIERARCHY_NONE; |
| deb_info("NONE\n"); |
| break; |
| case 1: |
| fep->u.ofdm.hierarchy_information = HIERARCHY_1; |
| deb_info("1\n"); |
| break; |
| case 2: |
| fep->u.ofdm.hierarchy_information = HIERARCHY_2; |
| deb_info("2\n"); |
| break; |
| case 3: |
| fep->u.ofdm.hierarchy_information = HIERARCHY_4; |
| deb_info("4\n"); |
| break; |
| } |
| |
| /* high/low priority */ |
| ret = |
| af9005_read_register_bits(state->d, xd_g_reg_dec_pri, |
| reg_dec_pri_pos, reg_dec_pri_len, &temp); |
| if (ret) |
| return ret; |
| /* if temp is set = high priority */ |
| deb_info("PRIORITY %s\n", temp ? "high" : "low"); |
| |
| /* high coderate */ |
| ret = |
| af9005_read_register_bits(state->d, xd_g_reg_tpsd_hpcr, |
| reg_tpsd_hpcr_pos, reg_tpsd_hpcr_len, |
| &temp); |
| if (ret) |
| return ret; |
| deb_info("CODERATE HP "); |
| switch (temp) { |
| case 0: |
| fep->u.ofdm.code_rate_HP = FEC_1_2; |
| deb_info("FEC_1_2\n"); |
| break; |
| case 1: |
| fep->u.ofdm.code_rate_HP = FEC_2_3; |
| deb_info("FEC_2_3\n"); |
| break; |
| case 2: |
| fep->u.ofdm.code_rate_HP = FEC_3_4; |
| deb_info("FEC_3_4\n"); |
| break; |
| case 3: |
| fep->u.ofdm.code_rate_HP = FEC_5_6; |
| deb_info("FEC_5_6\n"); |
| break; |
| case 4: |
| fep->u.ofdm.code_rate_HP = FEC_7_8; |
| deb_info("FEC_7_8\n"); |
| break; |
| } |
| |
| /* low coderate */ |
| ret = |
| af9005_read_register_bits(state->d, xd_g_reg_tpsd_lpcr, |
| reg_tpsd_lpcr_pos, reg_tpsd_lpcr_len, |
| &temp); |
| if (ret) |
| return ret; |
| deb_info("CODERATE LP "); |
| switch (temp) { |
| case 0: |
| fep->u.ofdm.code_rate_LP = FEC_1_2; |
| deb_info("FEC_1_2\n"); |
| break; |
| case 1: |
| fep->u.ofdm.code_rate_LP = FEC_2_3; |
| deb_info("FEC_2_3\n"); |
| break; |
| case 2: |
| fep->u.ofdm.code_rate_LP = FEC_3_4; |
| deb_info("FEC_3_4\n"); |
| break; |
| case 3: |
| fep->u.ofdm.code_rate_LP = FEC_5_6; |
| deb_info("FEC_5_6\n"); |
| break; |
| case 4: |
| fep->u.ofdm.code_rate_LP = FEC_7_8; |
| deb_info("FEC_7_8\n"); |
| break; |
| } |
| |
| /* guard interval */ |
| ret = |
| af9005_read_register_bits(state->d, xd_g_reg_tpsd_gi, |
| reg_tpsd_gi_pos, reg_tpsd_gi_len, &temp); |
| if (ret) |
| return ret; |
| deb_info("GUARD INTERVAL "); |
| switch (temp) { |
| case 0: |
| fep->u.ofdm.guard_interval = GUARD_INTERVAL_1_32; |
| deb_info("1_32\n"); |
| break; |
| case 1: |
| fep->u.ofdm.guard_interval = GUARD_INTERVAL_1_16; |
| deb_info("1_16\n"); |
| break; |
| case 2: |
| fep->u.ofdm.guard_interval = GUARD_INTERVAL_1_8; |
| deb_info("1_8\n"); |
| break; |
| case 3: |
| fep->u.ofdm.guard_interval = GUARD_INTERVAL_1_4; |
| deb_info("1_4\n"); |
| break; |
| } |
| |
| /* fft */ |
| ret = |
| af9005_read_register_bits(state->d, xd_g_reg_tpsd_txmod, |
| reg_tpsd_txmod_pos, reg_tpsd_txmod_len, |
| &temp); |
| if (ret) |
| return ret; |
| deb_info("TRANSMISSION MODE "); |
| switch (temp) { |
| case 0: |
| fep->u.ofdm.transmission_mode = TRANSMISSION_MODE_2K; |
| deb_info("2K\n"); |
| break; |
| case 1: |
| fep->u.ofdm.transmission_mode = TRANSMISSION_MODE_8K; |
| deb_info("8K\n"); |
| break; |
| } |
| |
| /* bandwidth */ |
| ret = |
| af9005_read_register_bits(state->d, xd_g_reg_bw, reg_bw_pos, |
| reg_bw_len, &temp); |
| deb_info("BANDWIDTH "); |
| switch (temp) { |
| case 0: |
| fep->u.ofdm.bandwidth = BANDWIDTH_6_MHZ; |
| deb_info("6\n"); |
| break; |
| case 1: |
| fep->u.ofdm.bandwidth = BANDWIDTH_7_MHZ; |
| deb_info("7\n"); |
| break; |
| case 2: |
| fep->u.ofdm.bandwidth = BANDWIDTH_8_MHZ; |
| deb_info("8\n"); |
| break; |
| } |
| return 0; |
| } |
| |
| static void af9005_fe_release(struct dvb_frontend *fe) |
| { |
| struct af9005_fe_state *state = |
| (struct af9005_fe_state *)fe->demodulator_priv; |
| kfree(state); |
| } |
| |
| static struct dvb_frontend_ops af9005_fe_ops; |
| |
| struct dvb_frontend *af9005_fe_attach(struct dvb_usb_device *d) |
| { |
| struct af9005_fe_state *state = NULL; |
| |
| /* allocate memory for the internal state */ |
| state = kzalloc(sizeof(struct af9005_fe_state), GFP_KERNEL); |
| if (state == NULL) |
| goto error; |
| |
| deb_info("attaching frontend af9005\n"); |
| |
| state->d = d; |
| state->opened = 0; |
| |
| memcpy(&state->frontend.ops, &af9005_fe_ops, |
| sizeof(struct dvb_frontend_ops)); |
| state->frontend.demodulator_priv = state; |
| |
| return &state->frontend; |
| error: |
| return NULL; |
| } |
| |
| static struct dvb_frontend_ops af9005_fe_ops = { |
| .info = { |
| .name = "AF9005 USB DVB-T", |
| .type = FE_OFDM, |
| .frequency_min = 44250000, |
| .frequency_max = 867250000, |
| .frequency_stepsize = 250000, |
| .caps = FE_CAN_INVERSION_AUTO | |
| FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 | |
| FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO | |
| FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | |
| FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | |
| FE_CAN_GUARD_INTERVAL_AUTO | FE_CAN_RECOVER | |
| FE_CAN_HIERARCHY_AUTO, |
| }, |
| |
| .release = af9005_fe_release, |
| |
| .init = af9005_fe_init, |
| .sleep = af9005_fe_sleep, |
| .ts_bus_ctrl = af9005_ts_bus_ctrl, |
| |
| .set_frontend = af9005_fe_set_frontend, |
| .get_frontend = af9005_fe_get_frontend, |
| |
| .read_status = af9005_fe_read_status, |
| .read_ber = af9005_fe_read_ber, |
| .read_signal_strength = af9005_fe_read_signal_strength, |
| .read_snr = af9005_fe_read_snr, |
| .read_ucblocks = af9005_fe_read_unc_blocks, |
| }; |
