| /* DVB USB compliant Linux driver for the |
| * - GENPIX 8pks/qpsk/DCII USB2.0 DVB-S module |
| * |
| * Copyright (C) 2006,2007 Alan Nisota (alannisota@gmail.com) |
| * Copyright (C) 2006,2007 Genpix Electronics (genpix@genpix-electronics.com) |
| * |
| * Thanks to GENPIX for the sample code used to implement this module. |
| * |
| * This module is based off the vp7045 and vp702x modules |
| * |
| * 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, version 2. |
| * |
| * see Documentation/dvb/README.dvb-usb for more information |
| */ |
| #include "gp8psk.h" |
| |
| struct gp8psk_fe_state { |
| struct dvb_frontend fe; |
| struct dvb_usb_device *d; |
| u8 lock; |
| u16 snr; |
| unsigned long next_status_check; |
| unsigned long status_check_interval; |
| }; |
| |
| static int gp8psk_tuned_to_DCII(struct dvb_frontend *fe) |
| { |
| struct gp8psk_fe_state *st = fe->demodulator_priv; |
| u8 status; |
| gp8psk_usb_in_op(st->d, GET_8PSK_CONFIG, 0, 0, &status, 1); |
| return status & bmDCtuned; |
| } |
| |
| static int gp8psk_set_tuner_mode(struct dvb_frontend *fe, int mode) |
| { |
| struct gp8psk_fe_state *state = fe->demodulator_priv; |
| return gp8psk_usb_out_op(state->d, SET_8PSK_CONFIG, mode, 0, NULL, 0); |
| } |
| |
| static int gp8psk_fe_update_status(struct gp8psk_fe_state *st) |
| { |
| u8 buf[6]; |
| if (time_after(jiffies,st->next_status_check)) { |
| gp8psk_usb_in_op(st->d, GET_SIGNAL_LOCK, 0,0,&st->lock,1); |
| gp8psk_usb_in_op(st->d, GET_SIGNAL_STRENGTH, 0,0,buf,6); |
| st->snr = (buf[1]) << 8 | buf[0]; |
| st->next_status_check = jiffies + (st->status_check_interval*HZ)/1000; |
| } |
| return 0; |
| } |
| |
| static int gp8psk_fe_read_status(struct dvb_frontend* fe, fe_status_t *status) |
| { |
| struct gp8psk_fe_state *st = fe->demodulator_priv; |
| gp8psk_fe_update_status(st); |
| |
| if (st->lock) |
| *status = FE_HAS_LOCK | FE_HAS_SYNC | FE_HAS_VITERBI | FE_HAS_SIGNAL | FE_HAS_CARRIER; |
| else |
| *status = 0; |
| |
| if (*status & FE_HAS_LOCK) |
| st->status_check_interval = 1000; |
| else |
| st->status_check_interval = 100; |
| return 0; |
| } |
| |
| /* not supported by this Frontend */ |
| static int gp8psk_fe_read_ber(struct dvb_frontend* fe, u32 *ber) |
| { |
| (void) fe; |
| *ber = 0; |
| return 0; |
| } |
| |
| /* not supported by this Frontend */ |
| static int gp8psk_fe_read_unc_blocks(struct dvb_frontend* fe, u32 *unc) |
| { |
| (void) fe; |
| *unc = 0; |
| return 0; |
| } |
| |
| static int gp8psk_fe_read_snr(struct dvb_frontend* fe, u16 *snr) |
| { |
| struct gp8psk_fe_state *st = fe->demodulator_priv; |
| gp8psk_fe_update_status(st); |
| /* snr is reported in dBu*256 */ |
| *snr = st->snr; |
| return 0; |
| } |
| |
| static int gp8psk_fe_read_signal_strength(struct dvb_frontend* fe, u16 *strength) |
| { |
| struct gp8psk_fe_state *st = fe->demodulator_priv; |
| gp8psk_fe_update_status(st); |
| /* snr is reported in dBu*256 */ |
| /* snr / 38.4 ~= 100% strength */ |
| /* snr * 17 returns 100% strength as 65535 */ |
| if (st->snr > 0xf00) |
| *strength = 0xffff; |
| else |
| *strength = (st->snr << 4) + st->snr; /* snr*17 */ |
| return 0; |
| } |
| |
| static int gp8psk_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune) |
| { |
| tune->min_delay_ms = 200; |
| return 0; |
| } |
| |
| static int gp8psk_fe_set_property(struct dvb_frontend *fe, |
| struct dtv_property *tvp) |
| { |
| deb_fe("%s(..)\n", __func__); |
| return 0; |
| } |
| |
| static int gp8psk_fe_get_property(struct dvb_frontend *fe, |
| struct dtv_property *tvp) |
| { |
| deb_fe("%s(..)\n", __func__); |
| return 0; |
| } |
| |
| |
| static int gp8psk_fe_set_frontend(struct dvb_frontend* fe, |
| struct dvb_frontend_parameters *fep) |
| { |
| struct gp8psk_fe_state *state = fe->demodulator_priv; |
| struct dtv_frontend_properties *c = &fe->dtv_property_cache; |
| u8 cmd[10]; |
| u32 freq = fep->frequency * 1000; |
| int gp_product_id = le16_to_cpu(state->d->udev->descriptor.idProduct); |
| |
| deb_fe("%s()\n", __func__); |
| |
| cmd[4] = freq & 0xff; |
| cmd[5] = (freq >> 8) & 0xff; |
| cmd[6] = (freq >> 16) & 0xff; |
| cmd[7] = (freq >> 24) & 0xff; |
| |
| switch (c->delivery_system) { |
| case SYS_DVBS: |
| /* Allow QPSK and 8PSK (even for DVB-S) */ |
| if (c->modulation != QPSK && c->modulation != PSK_8) { |
| deb_fe("%s: unsupported modulation selected (%d)\n", |
| __func__, c->modulation); |
| return -EOPNOTSUPP; |
| } |
| c->fec_inner = FEC_AUTO; |
| break; |
| case SYS_DVBS2: |
| deb_fe("%s: DVB-S2 delivery system selected\n", __func__); |
| break; |
| |
| default: |
| deb_fe("%s: unsupported delivery system selected (%d)\n", |
| __func__, c->delivery_system); |
| return -EOPNOTSUPP; |
| } |
| |
| cmd[0] = c->symbol_rate & 0xff; |
| cmd[1] = (c->symbol_rate >> 8) & 0xff; |
| cmd[2] = (c->symbol_rate >> 16) & 0xff; |
| cmd[3] = (c->symbol_rate >> 24) & 0xff; |
| switch (c->modulation) { |
| case QPSK: |
| if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM) |
| if (gp8psk_tuned_to_DCII(fe)) |
| gp8psk_bcm4500_reload(state->d); |
| switch (c->fec_inner) { |
| case FEC_1_2: |
| cmd[9] = 0; break; |
| case FEC_2_3: |
| cmd[9] = 1; break; |
| case FEC_3_4: |
| cmd[9] = 2; break; |
| case FEC_5_6: |
| cmd[9] = 3; break; |
| case FEC_7_8: |
| cmd[9] = 4; break; |
| case FEC_AUTO: |
| cmd[9] = 5; break; |
| default: |
| cmd[9] = 5; break; |
| } |
| cmd[8] = ADV_MOD_DVB_QPSK; |
| break; |
| case PSK_8: /* PSK_8 is for compatibility with DN */ |
| cmd[8] = ADV_MOD_TURBO_8PSK; |
| switch (c->fec_inner) { |
| case FEC_2_3: |
| cmd[9] = 0; break; |
| case FEC_3_4: |
| cmd[9] = 1; break; |
| case FEC_3_5: |
| cmd[9] = 2; break; |
| case FEC_5_6: |
| cmd[9] = 3; break; |
| case FEC_8_9: |
| cmd[9] = 4; break; |
| default: |
| cmd[9] = 0; break; |
| } |
| break; |
| case QAM_16: /* QAM_16 is for compatibility with DN */ |
| cmd[8] = ADV_MOD_TURBO_16QAM; |
| cmd[9] = 0; |
| break; |
| default: /* Unknown modulation */ |
| deb_fe("%s: unsupported modulation selected (%d)\n", |
| __func__, c->modulation); |
| return -EOPNOTSUPP; |
| } |
| |
| if (gp_product_id == USB_PID_GENPIX_8PSK_REV_1_WARM) |
| gp8psk_set_tuner_mode(fe, 0); |
| gp8psk_usb_out_op(state->d, TUNE_8PSK, 0, 0, cmd, 10); |
| |
| state->lock = 0; |
| state->next_status_check = jiffies; |
| state->status_check_interval = 200; |
| |
| return 0; |
| } |
| |
| static int gp8psk_fe_send_diseqc_msg (struct dvb_frontend* fe, |
| struct dvb_diseqc_master_cmd *m) |
| { |
| struct gp8psk_fe_state *st = fe->demodulator_priv; |
| |
| deb_fe("%s\n",__func__); |
| |
| if (gp8psk_usb_out_op(st->d,SEND_DISEQC_COMMAND, m->msg[0], 0, |
| m->msg, m->msg_len)) { |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static int gp8psk_fe_send_diseqc_burst (struct dvb_frontend* fe, |
| fe_sec_mini_cmd_t burst) |
| { |
| struct gp8psk_fe_state *st = fe->demodulator_priv; |
| u8 cmd; |
| |
| deb_fe("%s\n",__func__); |
| |
| /* These commands are certainly wrong */ |
| cmd = (burst == SEC_MINI_A) ? 0x00 : 0x01; |
| |
| if (gp8psk_usb_out_op(st->d,SEND_DISEQC_COMMAND, cmd, 0, |
| &cmd, 0)) { |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static int gp8psk_fe_set_tone (struct dvb_frontend* fe, fe_sec_tone_mode_t tone) |
| { |
| struct gp8psk_fe_state* state = fe->demodulator_priv; |
| |
| if (gp8psk_usb_out_op(state->d,SET_22KHZ_TONE, |
| (tone == SEC_TONE_ON), 0, NULL, 0)) { |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static int gp8psk_fe_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltage) |
| { |
| struct gp8psk_fe_state* state = fe->demodulator_priv; |
| |
| if (gp8psk_usb_out_op(state->d,SET_LNB_VOLTAGE, |
| voltage == SEC_VOLTAGE_18, 0, NULL, 0)) { |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| static int gp8psk_fe_enable_high_lnb_voltage(struct dvb_frontend* fe, long onoff) |
| { |
| struct gp8psk_fe_state* state = fe->demodulator_priv; |
| return gp8psk_usb_out_op(state->d, USE_EXTRA_VOLT, onoff, 0,NULL,0); |
| } |
| |
| static int gp8psk_fe_send_legacy_dish_cmd (struct dvb_frontend* fe, unsigned long sw_cmd) |
| { |
| struct gp8psk_fe_state* state = fe->demodulator_priv; |
| u8 cmd = sw_cmd & 0x7f; |
| |
| if (gp8psk_usb_out_op(state->d,SET_DN_SWITCH, cmd, 0, |
| NULL, 0)) { |
| return -EINVAL; |
| } |
| if (gp8psk_usb_out_op(state->d,SET_LNB_VOLTAGE, !!(sw_cmd & 0x80), |
| 0, NULL, 0)) { |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static void gp8psk_fe_release(struct dvb_frontend* fe) |
| { |
| struct gp8psk_fe_state *state = fe->demodulator_priv; |
| kfree(state); |
| } |
| |
| static struct dvb_frontend_ops gp8psk_fe_ops; |
| |
| struct dvb_frontend * gp8psk_fe_attach(struct dvb_usb_device *d) |
| { |
| struct gp8psk_fe_state *s = kzalloc(sizeof(struct gp8psk_fe_state), GFP_KERNEL); |
| if (s == NULL) |
| goto error; |
| |
| s->d = d; |
| memcpy(&s->fe.ops, &gp8psk_fe_ops, sizeof(struct dvb_frontend_ops)); |
| s->fe.demodulator_priv = s; |
| |
| goto success; |
| error: |
| return NULL; |
| success: |
| return &s->fe; |
| } |
| |
| |
| static struct dvb_frontend_ops gp8psk_fe_ops = { |
| .info = { |
| .name = "Genpix 8psk-to-USB2 DVB-S", |
| .type = FE_QPSK, |
| .frequency_min = 800000, |
| .frequency_max = 2250000, |
| .frequency_stepsize = 100, |
| .symbol_rate_min = 1000000, |
| .symbol_rate_max = 45000000, |
| .symbol_rate_tolerance = 500, /* ppm */ |
| .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_QAM_16 is for compatibility |
| * (Myth incorrectly detects Turbo-QPSK as plain QAM-16) |
| */ |
| FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_TURBO_FEC |
| }, |
| |
| .release = gp8psk_fe_release, |
| |
| .init = NULL, |
| .sleep = NULL, |
| |
| .set_property = gp8psk_fe_set_property, |
| .get_property = gp8psk_fe_get_property, |
| .set_frontend = gp8psk_fe_set_frontend, |
| |
| .get_tune_settings = gp8psk_fe_get_tune_settings, |
| |
| .read_status = gp8psk_fe_read_status, |
| .read_ber = gp8psk_fe_read_ber, |
| .read_signal_strength = gp8psk_fe_read_signal_strength, |
| .read_snr = gp8psk_fe_read_snr, |
| .read_ucblocks = gp8psk_fe_read_unc_blocks, |
| |
| .diseqc_send_master_cmd = gp8psk_fe_send_diseqc_msg, |
| .diseqc_send_burst = gp8psk_fe_send_diseqc_burst, |
| .set_tone = gp8psk_fe_set_tone, |
| .set_voltage = gp8psk_fe_set_voltage, |
| .dishnetwork_send_legacy_command = gp8psk_fe_send_legacy_dish_cmd, |
| .enable_high_lnb_voltage = gp8psk_fe_enable_high_lnb_voltage |
| }; |