From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: AndrĂ© Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- drivers/media/dvb-frontends/tda10071.c | 1319 ++++++++++++++++++++++++++++++++ 1 file changed, 1319 insertions(+) create mode 100644 drivers/media/dvb-frontends/tda10071.c (limited to 'drivers/media/dvb-frontends/tda10071.c') diff --git a/drivers/media/dvb-frontends/tda10071.c b/drivers/media/dvb-frontends/tda10071.c new file mode 100644 index 000000000..c6708d472 --- /dev/null +++ b/drivers/media/dvb-frontends/tda10071.c @@ -0,0 +1,1319 @@ +/* + * NXP TDA10071 + Conexant CX24118A DVB-S/S2 demodulator + tuner driver + * + * Copyright (C) 2011 Antti Palosaari + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "tda10071_priv.h" + +/* Max transfer size done by I2C transfer functions */ +#define MAX_XFER_SIZE 64 + +static struct dvb_frontend_ops tda10071_ops; + +/* write multiple registers */ +static int tda10071_wr_regs(struct tda10071_priv *priv, u8 reg, u8 *val, + int len) +{ + int ret; + u8 buf[MAX_XFER_SIZE]; + struct i2c_msg msg[1] = { + { + .addr = priv->cfg.demod_i2c_addr, + .flags = 0, + .len = 1 + len, + .buf = buf, + } + }; + + if (1 + len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + + buf[0] = reg; + memcpy(&buf[1], val, len); + + ret = i2c_transfer(priv->i2c, msg, 1); + if (ret == 1) { + ret = 0; + } else { + dev_warn(&priv->i2c->dev, + "%s: i2c wr failed=%d reg=%02x len=%d\n", + KBUILD_MODNAME, ret, reg, len); + ret = -EREMOTEIO; + } + return ret; +} + +/* read multiple registers */ +static int tda10071_rd_regs(struct tda10071_priv *priv, u8 reg, u8 *val, + int len) +{ + int ret; + u8 buf[MAX_XFER_SIZE]; + struct i2c_msg msg[2] = { + { + .addr = priv->cfg.demod_i2c_addr, + .flags = 0, + .len = 1, + .buf = ®, + }, { + .addr = priv->cfg.demod_i2c_addr, + .flags = I2C_M_RD, + .len = len, + .buf = buf, + } + }; + + if (len > sizeof(buf)) { + dev_warn(&priv->i2c->dev, + "%s: i2c wr reg=%04x: len=%d is too big!\n", + KBUILD_MODNAME, reg, len); + return -EINVAL; + } + + ret = i2c_transfer(priv->i2c, msg, 2); + if (ret == 2) { + memcpy(val, buf, len); + ret = 0; + } else { + dev_warn(&priv->i2c->dev, + "%s: i2c rd failed=%d reg=%02x len=%d\n", + KBUILD_MODNAME, ret, reg, len); + ret = -EREMOTEIO; + } + return ret; +} + +/* write single register */ +static int tda10071_wr_reg(struct tda10071_priv *priv, u8 reg, u8 val) +{ + return tda10071_wr_regs(priv, reg, &val, 1); +} + +/* read single register */ +static int tda10071_rd_reg(struct tda10071_priv *priv, u8 reg, u8 *val) +{ + return tda10071_rd_regs(priv, reg, val, 1); +} + +/* write single register with mask */ +static int tda10071_wr_reg_mask(struct tda10071_priv *priv, + u8 reg, u8 val, u8 mask) +{ + int ret; + u8 tmp; + + /* no need for read if whole reg is written */ + if (mask != 0xff) { + ret = tda10071_rd_regs(priv, reg, &tmp, 1); + if (ret) + return ret; + + val &= mask; + tmp &= ~mask; + val |= tmp; + } + + return tda10071_wr_regs(priv, reg, &val, 1); +} + +/* read single register with mask */ +static int tda10071_rd_reg_mask(struct tda10071_priv *priv, + u8 reg, u8 *val, u8 mask) +{ + int ret, i; + u8 tmp; + + ret = tda10071_rd_regs(priv, reg, &tmp, 1); + if (ret) + return ret; + + tmp &= mask; + + /* find position of the first bit */ + for (i = 0; i < 8; i++) { + if ((mask >> i) & 0x01) + break; + } + *val = tmp >> i; + + return 0; +} + +/* execute firmware command */ +static int tda10071_cmd_execute(struct tda10071_priv *priv, + struct tda10071_cmd *cmd) +{ + int ret, i; + u8 tmp; + + if (!priv->warm) { + ret = -EFAULT; + goto error; + } + + /* write cmd and args for firmware */ + ret = tda10071_wr_regs(priv, 0x00, cmd->args, cmd->len); + if (ret) + goto error; + + /* start cmd execution */ + ret = tda10071_wr_reg(priv, 0x1f, 1); + if (ret) + goto error; + + /* wait cmd execution terminate */ + for (i = 1000, tmp = 1; i && tmp; i--) { + ret = tda10071_rd_reg(priv, 0x1f, &tmp); + if (ret) + goto error; + + usleep_range(200, 5000); + } + + dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i); + + if (i == 0) { + ret = -ETIMEDOUT; + goto error; + } + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_set_tone(struct dvb_frontend *fe, + fe_sec_tone_mode_t fe_sec_tone_mode) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + struct tda10071_cmd cmd; + int ret; + u8 tone; + + if (!priv->warm) { + ret = -EFAULT; + goto error; + } + + dev_dbg(&priv->i2c->dev, "%s: tone_mode=%d\n", __func__, + fe_sec_tone_mode); + + switch (fe_sec_tone_mode) { + case SEC_TONE_ON: + tone = 1; + break; + case SEC_TONE_OFF: + tone = 0; + break; + default: + dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_tone_mode\n", + __func__); + ret = -EINVAL; + goto error; + } + + cmd.args[0] = CMD_LNB_PCB_CONFIG; + cmd.args[1] = 0; + cmd.args[2] = 0x00; + cmd.args[3] = 0x00; + cmd.args[4] = tone; + cmd.len = 5; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_set_voltage(struct dvb_frontend *fe, + fe_sec_voltage_t fe_sec_voltage) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + struct tda10071_cmd cmd; + int ret; + u8 voltage; + + if (!priv->warm) { + ret = -EFAULT; + goto error; + } + + dev_dbg(&priv->i2c->dev, "%s: voltage=%d\n", __func__, fe_sec_voltage); + + switch (fe_sec_voltage) { + case SEC_VOLTAGE_13: + voltage = 0; + break; + case SEC_VOLTAGE_18: + voltage = 1; + break; + case SEC_VOLTAGE_OFF: + voltage = 0; + break; + default: + dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_voltage\n", + __func__); + ret = -EINVAL; + goto error; + } + + cmd.args[0] = CMD_LNB_SET_DC_LEVEL; + cmd.args[1] = 0; + cmd.args[2] = voltage; + cmd.len = 3; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_diseqc_send_master_cmd(struct dvb_frontend *fe, + struct dvb_diseqc_master_cmd *diseqc_cmd) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + struct tda10071_cmd cmd; + int ret, i; + u8 tmp; + + if (!priv->warm) { + ret = -EFAULT; + goto error; + } + + dev_dbg(&priv->i2c->dev, "%s: msg_len=%d\n", __func__, + diseqc_cmd->msg_len); + + if (diseqc_cmd->msg_len < 3 || diseqc_cmd->msg_len > 6) { + ret = -EINVAL; + goto error; + } + + /* wait LNB TX */ + for (i = 500, tmp = 0; i && !tmp; i--) { + ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01); + if (ret) + goto error; + + usleep_range(10000, 20000); + } + + dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i); + + if (i == 0) { + ret = -ETIMEDOUT; + goto error; + } + + ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01); + if (ret) + goto error; + + cmd.args[0] = CMD_LNB_SEND_DISEQC; + cmd.args[1] = 0; + cmd.args[2] = 0; + cmd.args[3] = 0; + cmd.args[4] = 2; + cmd.args[5] = 0; + cmd.args[6] = diseqc_cmd->msg_len; + memcpy(&cmd.args[7], diseqc_cmd->msg, diseqc_cmd->msg_len); + cmd.len = 7 + diseqc_cmd->msg_len; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_diseqc_recv_slave_reply(struct dvb_frontend *fe, + struct dvb_diseqc_slave_reply *reply) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + struct tda10071_cmd cmd; + int ret, i; + u8 tmp; + + if (!priv->warm) { + ret = -EFAULT; + goto error; + } + + dev_dbg(&priv->i2c->dev, "%s:\n", __func__); + + /* wait LNB RX */ + for (i = 500, tmp = 0; i && !tmp; i--) { + ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x02); + if (ret) + goto error; + + usleep_range(10000, 20000); + } + + dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i); + + if (i == 0) { + ret = -ETIMEDOUT; + goto error; + } + + /* reply len */ + ret = tda10071_rd_reg(priv, 0x46, &tmp); + if (ret) + goto error; + + reply->msg_len = tmp & 0x1f; /* [4:0] */ + if (reply->msg_len > sizeof(reply->msg)) + reply->msg_len = sizeof(reply->msg); /* truncate API max */ + + /* read reply */ + cmd.args[0] = CMD_LNB_UPDATE_REPLY; + cmd.args[1] = 0; + cmd.len = 2; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + ret = tda10071_rd_regs(priv, cmd.len, reply->msg, reply->msg_len); + if (ret) + goto error; + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_diseqc_send_burst(struct dvb_frontend *fe, + fe_sec_mini_cmd_t fe_sec_mini_cmd) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + struct tda10071_cmd cmd; + int ret, i; + u8 tmp, burst; + + if (!priv->warm) { + ret = -EFAULT; + goto error; + } + + dev_dbg(&priv->i2c->dev, "%s: fe_sec_mini_cmd=%d\n", __func__, + fe_sec_mini_cmd); + + switch (fe_sec_mini_cmd) { + case SEC_MINI_A: + burst = 0; + break; + case SEC_MINI_B: + burst = 1; + break; + default: + dev_dbg(&priv->i2c->dev, "%s: invalid fe_sec_mini_cmd\n", + __func__); + ret = -EINVAL; + goto error; + } + + /* wait LNB TX */ + for (i = 500, tmp = 0; i && !tmp; i--) { + ret = tda10071_rd_reg_mask(priv, 0x47, &tmp, 0x01); + if (ret) + goto error; + + usleep_range(10000, 20000); + } + + dev_dbg(&priv->i2c->dev, "%s: loop=%d\n", __func__, i); + + if (i == 0) { + ret = -ETIMEDOUT; + goto error; + } + + ret = tda10071_wr_reg_mask(priv, 0x47, 0x00, 0x01); + if (ret) + goto error; + + cmd.args[0] = CMD_LNB_SEND_TONEBURST; + cmd.args[1] = 0; + cmd.args[2] = burst; + cmd.len = 3; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_read_status(struct dvb_frontend *fe, fe_status_t *status) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + int ret; + u8 tmp; + + *status = 0; + + if (!priv->warm) { + ret = 0; + goto error; + } + + ret = tda10071_rd_reg(priv, 0x39, &tmp); + if (ret) + goto error; + + /* 0x39[0] tuner PLL */ + if (tmp & 0x02) /* demod PLL */ + *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER; + if (tmp & 0x04) /* viterbi or LDPC*/ + *status |= FE_HAS_VITERBI; + if (tmp & 0x08) /* RS or BCH */ + *status |= FE_HAS_SYNC | FE_HAS_LOCK; + + priv->fe_status = *status; + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_read_snr(struct dvb_frontend *fe, u16 *snr) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + int ret; + u8 buf[2]; + + if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) { + *snr = 0; + ret = 0; + goto error; + } + + ret = tda10071_rd_regs(priv, 0x3a, buf, 2); + if (ret) + goto error; + + /* Es/No dBx10 */ + *snr = buf[0] << 8 | buf[1]; + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_read_signal_strength(struct dvb_frontend *fe, u16 *strength) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + struct tda10071_cmd cmd; + int ret; + u8 tmp; + + if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) { + *strength = 0; + ret = 0; + goto error; + } + + cmd.args[0] = CMD_GET_AGCACC; + cmd.args[1] = 0; + cmd.len = 2; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + /* input power estimate dBm */ + ret = tda10071_rd_reg(priv, 0x50, &tmp); + if (ret) + goto error; + + if (tmp < 181) + tmp = 181; /* -75 dBm */ + else if (tmp > 236) + tmp = 236; /* -20 dBm */ + + /* scale value to 0x0000-0xffff */ + *strength = (tmp-181) * 0xffff / (236-181); + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + struct tda10071_cmd cmd; + int ret, i, len; + u8 tmp, reg, buf[8]; + + if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) { + *ber = priv->ber = 0; + ret = 0; + goto error; + } + + switch (priv->delivery_system) { + case SYS_DVBS: + reg = 0x4c; + len = 8; + i = 1; + break; + case SYS_DVBS2: + reg = 0x4d; + len = 4; + i = 0; + break; + default: + *ber = priv->ber = 0; + return 0; + } + + ret = tda10071_rd_reg(priv, reg, &tmp); + if (ret) + goto error; + + if (priv->meas_count[i] == tmp) { + dev_dbg(&priv->i2c->dev, "%s: meas not ready=%02x\n", __func__, + tmp); + *ber = priv->ber; + return 0; + } else { + priv->meas_count[i] = tmp; + } + + cmd.args[0] = CMD_BER_UPDATE_COUNTERS; + cmd.args[1] = 0; + cmd.args[2] = i; + cmd.len = 3; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + ret = tda10071_rd_regs(priv, cmd.len, buf, len); + if (ret) + goto error; + + if (priv->delivery_system == SYS_DVBS) { + *ber = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; + priv->ucb += (buf[4] << 8) | buf[5]; + } else { + *ber = (buf[0] << 8) | buf[1]; + } + priv->ber = *ber; + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + int ret = 0; + + if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) { + *ucblocks = 0; + goto error; + } + + /* UCB is updated when BER is read. Assume BER is read anyway. */ + + *ucblocks = priv->ucb; + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_set_frontend(struct dvb_frontend *fe) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + struct tda10071_cmd cmd; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret, i; + u8 mode, rolloff, pilot, inversion, div; + fe_modulation_t modulation; + + dev_dbg(&priv->i2c->dev, + "%s: delivery_system=%d modulation=%d frequency=%d symbol_rate=%d inversion=%d pilot=%d rolloff=%d\n", + __func__, c->delivery_system, c->modulation, + c->frequency, c->symbol_rate, c->inversion, c->pilot, + c->rolloff); + + priv->delivery_system = SYS_UNDEFINED; + + if (!priv->warm) { + ret = -EFAULT; + goto error; + } + + switch (c->inversion) { + case INVERSION_OFF: + inversion = 1; + break; + case INVERSION_ON: + inversion = 0; + break; + case INVERSION_AUTO: + /* 2 = auto; try first on then off + * 3 = auto; try first off then on */ + inversion = 3; + break; + default: + dev_dbg(&priv->i2c->dev, "%s: invalid inversion\n", __func__); + ret = -EINVAL; + goto error; + } + + switch (c->delivery_system) { + case SYS_DVBS: + modulation = QPSK; + rolloff = 0; + pilot = 2; + break; + case SYS_DVBS2: + modulation = c->modulation; + + switch (c->rolloff) { + case ROLLOFF_20: + rolloff = 2; + break; + case ROLLOFF_25: + rolloff = 1; + break; + case ROLLOFF_35: + rolloff = 0; + break; + case ROLLOFF_AUTO: + default: + dev_dbg(&priv->i2c->dev, "%s: invalid rolloff\n", + __func__); + ret = -EINVAL; + goto error; + } + + switch (c->pilot) { + case PILOT_OFF: + pilot = 0; + break; + case PILOT_ON: + pilot = 1; + break; + case PILOT_AUTO: + pilot = 2; + break; + default: + dev_dbg(&priv->i2c->dev, "%s: invalid pilot\n", + __func__); + ret = -EINVAL; + goto error; + } + break; + default: + dev_dbg(&priv->i2c->dev, "%s: invalid delivery_system\n", + __func__); + ret = -EINVAL; + goto error; + } + + for (i = 0, mode = 0xff; i < ARRAY_SIZE(TDA10071_MODCOD); i++) { + if (c->delivery_system == TDA10071_MODCOD[i].delivery_system && + modulation == TDA10071_MODCOD[i].modulation && + c->fec_inner == TDA10071_MODCOD[i].fec) { + mode = TDA10071_MODCOD[i].val; + dev_dbg(&priv->i2c->dev, "%s: mode found=%02x\n", + __func__, mode); + break; + } + } + + if (mode == 0xff) { + dev_dbg(&priv->i2c->dev, "%s: invalid parameter combination\n", + __func__); + ret = -EINVAL; + goto error; + } + + if (c->symbol_rate <= 5000000) + div = 14; + else + div = 4; + + ret = tda10071_wr_reg(priv, 0x81, div); + if (ret) + goto error; + + ret = tda10071_wr_reg(priv, 0xe3, div); + if (ret) + goto error; + + cmd.args[0] = CMD_CHANGE_CHANNEL; + cmd.args[1] = 0; + cmd.args[2] = mode; + cmd.args[3] = (c->frequency >> 16) & 0xff; + cmd.args[4] = (c->frequency >> 8) & 0xff; + cmd.args[5] = (c->frequency >> 0) & 0xff; + cmd.args[6] = ((c->symbol_rate / 1000) >> 8) & 0xff; + cmd.args[7] = ((c->symbol_rate / 1000) >> 0) & 0xff; + cmd.args[8] = (tda10071_ops.info.frequency_tolerance >> 8) & 0xff; + cmd.args[9] = (tda10071_ops.info.frequency_tolerance >> 0) & 0xff; + cmd.args[10] = rolloff; + cmd.args[11] = inversion; + cmd.args[12] = pilot; + cmd.args[13] = 0x00; + cmd.args[14] = 0x00; + cmd.len = 15; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + priv->delivery_system = c->delivery_system; + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_get_frontend(struct dvb_frontend *fe) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret, i; + u8 buf[5], tmp; + + if (!priv->warm || !(priv->fe_status & FE_HAS_LOCK)) { + ret = -EFAULT; + goto error; + } + + ret = tda10071_rd_regs(priv, 0x30, buf, 5); + if (ret) + goto error; + + tmp = buf[0] & 0x3f; + for (i = 0; i < ARRAY_SIZE(TDA10071_MODCOD); i++) { + if (tmp == TDA10071_MODCOD[i].val) { + c->modulation = TDA10071_MODCOD[i].modulation; + c->fec_inner = TDA10071_MODCOD[i].fec; + c->delivery_system = TDA10071_MODCOD[i].delivery_system; + } + } + + switch ((buf[1] >> 0) & 0x01) { + case 0: + c->inversion = INVERSION_ON; + break; + case 1: + c->inversion = INVERSION_OFF; + break; + } + + switch ((buf[1] >> 7) & 0x01) { + case 0: + c->pilot = PILOT_OFF; + break; + case 1: + c->pilot = PILOT_ON; + break; + } + + c->frequency = (buf[2] << 16) | (buf[3] << 8) | (buf[4] << 0); + + ret = tda10071_rd_regs(priv, 0x52, buf, 3); + if (ret) + goto error; + + c->symbol_rate = ((buf[0] << 16) | (buf[1] << 8) | (buf[2] << 0)) * 1000; + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_init(struct dvb_frontend *fe) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + struct tda10071_cmd cmd; + int ret, i, len, remaining, fw_size; + const struct firmware *fw; + u8 *fw_file = TDA10071_FIRMWARE; + u8 tmp, buf[4]; + struct tda10071_reg_val_mask tab[] = { + { 0xcd, 0x00, 0x07 }, + { 0x80, 0x00, 0x02 }, + { 0xcd, 0x00, 0xc0 }, + { 0xce, 0x00, 0x1b }, + { 0x9d, 0x00, 0x01 }, + { 0x9d, 0x00, 0x02 }, + { 0x9e, 0x00, 0x01 }, + { 0x87, 0x00, 0x80 }, + { 0xce, 0x00, 0x08 }, + { 0xce, 0x00, 0x10 }, + }; + struct tda10071_reg_val_mask tab2[] = { + { 0xf1, 0x70, 0xff }, + { 0x88, priv->cfg.pll_multiplier, 0x3f }, + { 0x89, 0x00, 0x10 }, + { 0x89, 0x10, 0x10 }, + { 0xc0, 0x01, 0x01 }, + { 0xc0, 0x00, 0x01 }, + { 0xe0, 0xff, 0xff }, + { 0xe0, 0x00, 0xff }, + { 0x96, 0x1e, 0x7e }, + { 0x8b, 0x08, 0x08 }, + { 0x8b, 0x00, 0x08 }, + { 0x8f, 0x1a, 0x7e }, + { 0x8c, 0x68, 0xff }, + { 0x8d, 0x08, 0xff }, + { 0x8e, 0x4c, 0xff }, + { 0x8f, 0x01, 0x01 }, + { 0x8b, 0x04, 0x04 }, + { 0x8b, 0x00, 0x04 }, + { 0x87, 0x05, 0x07 }, + { 0x80, 0x00, 0x20 }, + { 0xc8, 0x01, 0xff }, + { 0xb4, 0x47, 0xff }, + { 0xb5, 0x9c, 0xff }, + { 0xb6, 0x7d, 0xff }, + { 0xba, 0x00, 0x03 }, + { 0xb7, 0x47, 0xff }, + { 0xb8, 0x9c, 0xff }, + { 0xb9, 0x7d, 0xff }, + { 0xba, 0x00, 0x0c }, + { 0xc8, 0x00, 0xff }, + { 0xcd, 0x00, 0x04 }, + { 0xcd, 0x00, 0x20 }, + { 0xe8, 0x02, 0xff }, + { 0xcf, 0x20, 0xff }, + { 0x9b, 0xd7, 0xff }, + { 0x9a, 0x01, 0x03 }, + { 0xa8, 0x05, 0x0f }, + { 0xa8, 0x65, 0xf0 }, + { 0xa6, 0xa0, 0xf0 }, + { 0x9d, 0x50, 0xfc }, + { 0x9e, 0x20, 0xe0 }, + { 0xa3, 0x1c, 0x7c }, + { 0xd5, 0x03, 0x03 }, + }; + + if (priv->warm) { + /* warm state - wake up device from sleep */ + + for (i = 0; i < ARRAY_SIZE(tab); i++) { + ret = tda10071_wr_reg_mask(priv, tab[i].reg, + tab[i].val, tab[i].mask); + if (ret) + goto error; + } + + cmd.args[0] = CMD_SET_SLEEP_MODE; + cmd.args[1] = 0; + cmd.args[2] = 0; + cmd.len = 3; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + } else { + /* cold state - try to download firmware */ + + /* request the firmware, this will block and timeout */ + ret = reject_firmware(&fw, fw_file, priv->i2c->dev.parent); + if (ret) { + dev_err(&priv->i2c->dev, + "%s: did not find the firmware file. (%s) Please see linux/Documentation/dvb/ for more details on firmware-problems. (%d)\n", + KBUILD_MODNAME, fw_file, ret); + goto error; + } + + /* init */ + for (i = 0; i < ARRAY_SIZE(tab2); i++) { + ret = tda10071_wr_reg_mask(priv, tab2[i].reg, + tab2[i].val, tab2[i].mask); + if (ret) + goto error_release_firmware; + } + + /* download firmware */ + ret = tda10071_wr_reg(priv, 0xe0, 0x7f); + if (ret) + goto error_release_firmware; + + ret = tda10071_wr_reg(priv, 0xf7, 0x81); + if (ret) + goto error_release_firmware; + + ret = tda10071_wr_reg(priv, 0xf8, 0x00); + if (ret) + goto error_release_firmware; + + ret = tda10071_wr_reg(priv, 0xf9, 0x00); + if (ret) + goto error_release_firmware; + + dev_info(&priv->i2c->dev, + "%s: found a '%s' in cold state, will try to load a firmware\n", + KBUILD_MODNAME, tda10071_ops.info.name); + dev_info(&priv->i2c->dev, + "%s: downloading firmware from file '%s'\n", + KBUILD_MODNAME, fw_file); + + /* do not download last byte */ + fw_size = fw->size - 1; + + for (remaining = fw_size; remaining > 0; + remaining -= (priv->cfg.i2c_wr_max - 1)) { + len = remaining; + if (len > (priv->cfg.i2c_wr_max - 1)) + len = (priv->cfg.i2c_wr_max - 1); + + ret = tda10071_wr_regs(priv, 0xfa, + (u8 *) &fw->data[fw_size - remaining], len); + if (ret) { + dev_err(&priv->i2c->dev, + "%s: firmware download failed=%d\n", + KBUILD_MODNAME, ret); + goto error_release_firmware; + } + } + release_firmware(fw); + + ret = tda10071_wr_reg(priv, 0xf7, 0x0c); + if (ret) + goto error; + + ret = tda10071_wr_reg(priv, 0xe0, 0x00); + if (ret) + goto error; + + /* wait firmware start */ + msleep(250); + + /* firmware status */ + ret = tda10071_rd_reg(priv, 0x51, &tmp); + if (ret) + goto error; + + if (tmp) { + dev_info(&priv->i2c->dev, "%s: firmware did not run\n", + KBUILD_MODNAME); + ret = -EFAULT; + goto error; + } else { + priv->warm = true; + } + + cmd.args[0] = CMD_GET_FW_VERSION; + cmd.len = 1; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + ret = tda10071_rd_regs(priv, cmd.len, buf, 4); + if (ret) + goto error; + + dev_info(&priv->i2c->dev, "%s: firmware version %d.%d.%d.%d\n", + KBUILD_MODNAME, buf[0], buf[1], buf[2], buf[3]); + dev_info(&priv->i2c->dev, "%s: found a '%s' in warm state\n", + KBUILD_MODNAME, tda10071_ops.info.name); + + ret = tda10071_rd_regs(priv, 0x81, buf, 2); + if (ret) + goto error; + + cmd.args[0] = CMD_DEMOD_INIT; + cmd.args[1] = ((priv->cfg.xtal / 1000) >> 8) & 0xff; + cmd.args[2] = ((priv->cfg.xtal / 1000) >> 0) & 0xff; + cmd.args[3] = buf[0]; + cmd.args[4] = buf[1]; + cmd.args[5] = priv->cfg.pll_multiplier; + cmd.args[6] = priv->cfg.spec_inv; + cmd.args[7] = 0x00; + cmd.len = 8; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + if (priv->cfg.tuner_i2c_addr) + tmp = priv->cfg.tuner_i2c_addr; + else + tmp = 0x14; + + cmd.args[0] = CMD_TUNER_INIT; + cmd.args[1] = 0x00; + cmd.args[2] = 0x00; + cmd.args[3] = 0x00; + cmd.args[4] = 0x00; + cmd.args[5] = tmp; + cmd.args[6] = 0x00; + cmd.args[7] = 0x03; + cmd.args[8] = 0x02; + cmd.args[9] = 0x02; + cmd.args[10] = 0x00; + cmd.args[11] = 0x00; + cmd.args[12] = 0x00; + cmd.args[13] = 0x00; + cmd.args[14] = 0x00; + cmd.len = 15; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + cmd.args[0] = CMD_MPEG_CONFIG; + cmd.args[1] = 0; + cmd.args[2] = priv->cfg.ts_mode; + cmd.args[3] = 0x00; + cmd.args[4] = 0x04; + cmd.args[5] = 0x00; + cmd.len = 6; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + ret = tda10071_wr_reg_mask(priv, 0xf0, 0x01, 0x01); + if (ret) + goto error; + + cmd.args[0] = CMD_LNB_CONFIG; + cmd.args[1] = 0; + cmd.args[2] = 150; + cmd.args[3] = 3; + cmd.args[4] = 22; + cmd.args[5] = 1; + cmd.args[6] = 1; + cmd.args[7] = 30; + cmd.args[8] = 30; + cmd.args[9] = 30; + cmd.args[10] = 30; + cmd.len = 11; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + cmd.args[0] = CMD_BER_CONTROL; + cmd.args[1] = 0; + cmd.args[2] = 14; + cmd.args[3] = 14; + cmd.len = 4; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + } + + return ret; +error_release_firmware: + release_firmware(fw); +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_sleep(struct dvb_frontend *fe) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + struct tda10071_cmd cmd; + int ret, i; + struct tda10071_reg_val_mask tab[] = { + { 0xcd, 0x07, 0x07 }, + { 0x80, 0x02, 0x02 }, + { 0xcd, 0xc0, 0xc0 }, + { 0xce, 0x1b, 0x1b }, + { 0x9d, 0x01, 0x01 }, + { 0x9d, 0x02, 0x02 }, + { 0x9e, 0x01, 0x01 }, + { 0x87, 0x80, 0x80 }, + { 0xce, 0x08, 0x08 }, + { 0xce, 0x10, 0x10 }, + }; + + if (!priv->warm) { + ret = -EFAULT; + goto error; + } + + cmd.args[0] = CMD_SET_SLEEP_MODE; + cmd.args[1] = 0; + cmd.args[2] = 1; + cmd.len = 3; + ret = tda10071_cmd_execute(priv, &cmd); + if (ret) + goto error; + + for (i = 0; i < ARRAY_SIZE(tab); i++) { + ret = tda10071_wr_reg_mask(priv, tab[i].reg, tab[i].val, + tab[i].mask); + if (ret) + goto error; + } + + return ret; +error: + dev_dbg(&priv->i2c->dev, "%s: failed=%d\n", __func__, ret); + return ret; +} + +static int tda10071_get_tune_settings(struct dvb_frontend *fe, + struct dvb_frontend_tune_settings *s) +{ + s->min_delay_ms = 8000; + s->step_size = 0; + s->max_drift = 0; + + return 0; +} + +static void tda10071_release(struct dvb_frontend *fe) +{ + struct tda10071_priv *priv = fe->demodulator_priv; + kfree(priv); +} + +struct dvb_frontend *tda10071_attach(const struct tda10071_config *config, + struct i2c_adapter *i2c) +{ + int ret; + struct tda10071_priv *priv = NULL; + u8 tmp; + + /* allocate memory for the internal priv */ + priv = kzalloc(sizeof(struct tda10071_priv), GFP_KERNEL); + if (priv == NULL) { + ret = -ENOMEM; + goto error; + } + + /* make sure demod i2c address is specified */ + if (!config->demod_i2c_addr) { + dev_dbg(&i2c->dev, "%s: invalid demod i2c address\n", __func__); + ret = -EINVAL; + goto error; + } + + /* make sure tuner i2c address is specified */ + if (!config->tuner_i2c_addr) { + dev_dbg(&i2c->dev, "%s: invalid tuner i2c address\n", __func__); + ret = -EINVAL; + goto error; + } + + /* setup the priv */ + priv->i2c = i2c; + memcpy(&priv->cfg, config, sizeof(struct tda10071_config)); + + /* chip ID */ + ret = tda10071_rd_reg(priv, 0xff, &tmp); + if (ret || tmp != 0x0f) + goto error; + + /* chip type */ + ret = tda10071_rd_reg(priv, 0xdd, &tmp); + if (ret || tmp != 0x00) + goto error; + + /* chip version */ + ret = tda10071_rd_reg(priv, 0xfe, &tmp); + if (ret || tmp != 0x01) + goto error; + + /* create dvb_frontend */ + memcpy(&priv->fe.ops, &tda10071_ops, sizeof(struct dvb_frontend_ops)); + priv->fe.demodulator_priv = priv; + + return &priv->fe; +error: + dev_dbg(&i2c->dev, "%s: failed=%d\n", __func__, ret); + kfree(priv); + return NULL; +} +EXPORT_SYMBOL(tda10071_attach); + +static struct dvb_frontend_ops tda10071_ops = { + .delsys = { SYS_DVBS, SYS_DVBS2 }, + .info = { + .name = "NXP TDA10071", + .frequency_min = 950000, + .frequency_max = 2150000, + .frequency_tolerance = 5000, + .symbol_rate_min = 1000000, + .symbol_rate_max = 45000000, + .caps = FE_CAN_INVERSION_AUTO | + FE_CAN_FEC_1_2 | + FE_CAN_FEC_2_3 | + FE_CAN_FEC_3_4 | + FE_CAN_FEC_4_5 | + FE_CAN_FEC_5_6 | + FE_CAN_FEC_6_7 | + FE_CAN_FEC_7_8 | + FE_CAN_FEC_8_9 | + FE_CAN_FEC_AUTO | + FE_CAN_QPSK | + FE_CAN_RECOVER | + FE_CAN_2G_MODULATION + }, + + .release = tda10071_release, + + .get_tune_settings = tda10071_get_tune_settings, + + .init = tda10071_init, + .sleep = tda10071_sleep, + + .set_frontend = tda10071_set_frontend, + .get_frontend = tda10071_get_frontend, + + .read_status = tda10071_read_status, + .read_snr = tda10071_read_snr, + .read_signal_strength = tda10071_read_signal_strength, + .read_ber = tda10071_read_ber, + .read_ucblocks = tda10071_read_ucblocks, + + .diseqc_send_master_cmd = tda10071_diseqc_send_master_cmd, + .diseqc_recv_slave_reply = tda10071_diseqc_recv_slave_reply, + .diseqc_send_burst = tda10071_diseqc_send_burst, + + .set_tone = tda10071_set_tone, + .set_voltage = tda10071_set_voltage, +}; + +MODULE_AUTHOR("Antti Palosaari "); +MODULE_DESCRIPTION("NXP TDA10071 DVB-S/S2 demodulator driver"); +MODULE_LICENSE("GPL"); +/*(DEBLOBBED)*/ -- cgit v1.2.3-54-g00ecf