/* 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. * * see Documentation/media/dvb-drivers/dvb-usb.rst 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; enum fe_status 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; if ((ret = af9005_write_ofdm_register(d, reglo, (u8) (value & 0xff)))) return ret; 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 = 0; 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 modulation 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 modulation 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, enum fe_status *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 modulation 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, u32 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 6000000: 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 7000000: 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 8000000: 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 bandwidth %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, u32 bw) { u8 temp; switch (bw) { case 6000000: temp = 0; break; case 7000000: temp = 1; break; case 8000000: temp = 2; break; default: err("Invalid bandwidth %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 bandwidth */ deb_info("program cfoe\n"); ret = af9005_fe_program_cfoe(state->d, 6000000); if (ret) return ret; /* set read-update bit for modulation */ deb_info("set read-update bit for modulation\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 modulation */ deb_info("set read-update bit 1 for DCA modulation\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 dtv_frontend_properties *fep = &fe->dtv_property_cache; 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->bandwidth_hz); 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 bandwidth */ deb_info("select bandwidth"); ret = af9005_fe_select_bw(state->d, fep->bandwidth_hz); if (ret) return ret; ret = af9005_fe_program_cfoe(state->d, fep->bandwidth_hz); 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); 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 dtv_frontend_properties *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_legacy = =============\n"); deb_info("CONSTELLATION "); switch (temp) { case 0: fep->modulation = QPSK; deb_info("QPSK\n"); break; case 1: fep->modulation = QAM_16; deb_info("QAM_16\n"); break; case 2: fep->modulation = 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->hierarchy = HIERARCHY_NONE; deb_info("NONE\n"); break; case 1: fep->hierarchy = HIERARCHY_1; deb_info("1\n"); break; case 2: fep->hierarchy = HIERARCHY_2; deb_info("2\n"); break; case 3: fep->hierarchy = 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->code_rate_HP = FEC_1_2; deb_info("FEC_1_2\n"); break; case 1: fep->code_rate_HP = FEC_2_3; deb_info("FEC_2_3\n"); break; case 2: fep->code_rate_HP = FEC_3_4; deb_info("FEC_3_4\n"); break; case 3: fep->code_rate_HP = FEC_5_6; deb_info("FEC_5_6\n"); break; case 4: fep->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->code_rate_LP = FEC_1_2; deb_info("FEC_1_2\n"); break; case 1: fep->code_rate_LP = FEC_2_3; deb_info("FEC_2_3\n"); break; case 2: fep->code_rate_LP = FEC_3_4; deb_info("FEC_3_4\n"); break; case 3: fep->code_rate_LP = FEC_5_6; deb_info("FEC_5_6\n"); break; case 4: fep->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->guard_interval = GUARD_INTERVAL_1_32; deb_info("1_32\n"); break; case 1: fep->guard_interval = GUARD_INTERVAL_1_16; deb_info("1_16\n"); break; case 2: fep->guard_interval = GUARD_INTERVAL_1_8; deb_info("1_8\n"); break; case 3: fep->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->transmission_mode = TRANSMISSION_MODE_2K; deb_info("2K\n"); break; case 1: fep->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->bandwidth_hz = 6000000; deb_info("6\n"); break; case 1: fep->bandwidth_hz = 7000000; deb_info("7\n"); break; case 2: fep->bandwidth_hz = 8000000; 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 const 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 const struct dvb_frontend_ops af9005_fe_ops = { .delsys = { SYS_DVBT }, .info = { .name = "AF9005 USB DVB-T", .frequency_min_hz = 44250 * kHz, .frequency_max_hz = 867250 * kHz, .frequency_stepsize_hz = 250 * kHz, .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, };