diff options
Diffstat (limited to 'drivers/media/dvb-frontends/m88ds3103.c')
| -rw-r--r-- | drivers/media/dvb-frontends/m88ds3103.c | 1524 |
1 files changed, 1524 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/m88ds3103.c b/drivers/media/dvb-frontends/m88ds3103.c new file mode 100644 index 000000000..c25c92797 --- /dev/null +++ b/drivers/media/dvb-frontends/m88ds3103.c @@ -0,0 +1,1524 @@ +/* + * Montage Technology M88DS3103/M88RS6000 demodulator driver + * + * Copyright (C) 2013 Antti Palosaari <crope@iki.fi> + * + * 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. + */ + +#include "m88ds3103_priv.h" + +static const struct dvb_frontend_ops m88ds3103_ops; + +/* write single register with mask */ +static int m88ds3103_update_bits(struct m88ds3103_dev *dev, + u8 reg, u8 mask, u8 val) +{ + int ret; + u8 tmp; + + /* no need for read if whole reg is written */ + if (mask != 0xff) { + ret = regmap_bulk_read(dev->regmap, reg, &tmp, 1); + if (ret) + return ret; + + val &= mask; + tmp &= ~mask; + val |= tmp; + } + + return regmap_bulk_write(dev->regmap, reg, &val, 1); +} + +/* write reg val table using reg addr auto increment */ +static int m88ds3103_wr_reg_val_tab(struct m88ds3103_dev *dev, + const struct m88ds3103_reg_val *tab, int tab_len) +{ + struct i2c_client *client = dev->client; + int ret, i, j; + u8 buf[83]; + + dev_dbg(&client->dev, "tab_len=%d\n", tab_len); + + if (tab_len > 86) { + ret = -EINVAL; + goto err; + } + + for (i = 0, j = 0; i < tab_len; i++, j++) { + buf[j] = tab[i].val; + + if (i == tab_len - 1 || tab[i].reg != tab[i + 1].reg - 1 || + !((j + 1) % (dev->cfg->i2c_wr_max - 1))) { + ret = regmap_bulk_write(dev->regmap, tab[i].reg - j, buf, j + 1); + if (ret) + goto err; + + j = -1; + } + } + + return 0; +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +/* + * Get the demodulator AGC PWM voltage setting supplied to the tuner. + */ +int m88ds3103_get_agc_pwm(struct dvb_frontend *fe, u8 *_agc_pwm) +{ + struct m88ds3103_dev *dev = fe->demodulator_priv; + unsigned tmp; + int ret; + + ret = regmap_read(dev->regmap, 0x3f, &tmp); + if (ret == 0) + *_agc_pwm = tmp; + return ret; +} +EXPORT_SYMBOL(m88ds3103_get_agc_pwm); + +static int m88ds3103_read_status(struct dvb_frontend *fe, + enum fe_status *status) +{ + struct m88ds3103_dev *dev = fe->demodulator_priv; + struct i2c_client *client = dev->client; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret, i, itmp; + unsigned int utmp; + u8 buf[3]; + + *status = 0; + + if (!dev->warm) { + ret = -EAGAIN; + goto err; + } + + switch (c->delivery_system) { + case SYS_DVBS: + ret = regmap_read(dev->regmap, 0xd1, &utmp); + if (ret) + goto err; + + if ((utmp & 0x07) == 0x07) + *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | + FE_HAS_VITERBI | FE_HAS_SYNC | + FE_HAS_LOCK; + break; + case SYS_DVBS2: + ret = regmap_read(dev->regmap, 0x0d, &utmp); + if (ret) + goto err; + + if ((utmp & 0x8f) == 0x8f) + *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | + FE_HAS_VITERBI | FE_HAS_SYNC | + FE_HAS_LOCK; + break; + default: + dev_dbg(&client->dev, "invalid delivery_system\n"); + ret = -EINVAL; + goto err; + } + + dev->fe_status = *status; + dev_dbg(&client->dev, "lock=%02x status=%02x\n", utmp, *status); + + /* CNR */ + if (dev->fe_status & FE_HAS_VITERBI) { + unsigned int cnr, noise, signal, noise_tot, signal_tot; + + cnr = 0; + /* more iterations for more accurate estimation */ + #define M88DS3103_SNR_ITERATIONS 3 + + switch (c->delivery_system) { + case SYS_DVBS: + itmp = 0; + + for (i = 0; i < M88DS3103_SNR_ITERATIONS; i++) { + ret = regmap_read(dev->regmap, 0xff, &utmp); + if (ret) + goto err; + + itmp += utmp; + } + + /* use of single register limits max value to 15 dB */ + /* SNR(X) dB = 10 * ln(X) / ln(10) dB */ + itmp = DIV_ROUND_CLOSEST(itmp, 8 * M88DS3103_SNR_ITERATIONS); + if (itmp) + cnr = div_u64((u64) 10000 * intlog2(itmp), intlog2(10)); + break; + case SYS_DVBS2: + noise_tot = 0; + signal_tot = 0; + + for (i = 0; i < M88DS3103_SNR_ITERATIONS; i++) { + ret = regmap_bulk_read(dev->regmap, 0x8c, buf, 3); + if (ret) + goto err; + + noise = buf[1] << 6; /* [13:6] */ + noise |= buf[0] & 0x3f; /* [5:0] */ + noise >>= 2; + signal = buf[2] * buf[2]; + signal >>= 1; + + noise_tot += noise; + signal_tot += signal; + } + + noise = noise_tot / M88DS3103_SNR_ITERATIONS; + signal = signal_tot / M88DS3103_SNR_ITERATIONS; + + /* SNR(X) dB = 10 * log10(X) dB */ + if (signal > noise) { + itmp = signal / noise; + cnr = div_u64((u64) 10000 * intlog10(itmp), (1 << 24)); + } + break; + default: + dev_dbg(&client->dev, "invalid delivery_system\n"); + ret = -EINVAL; + goto err; + } + + if (cnr) { + c->cnr.stat[0].scale = FE_SCALE_DECIBEL; + c->cnr.stat[0].svalue = cnr; + } else { + c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + } + } else { + c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + } + + /* BER */ + if (dev->fe_status & FE_HAS_LOCK) { + unsigned int utmp, post_bit_error, post_bit_count; + + switch (c->delivery_system) { + case SYS_DVBS: + ret = regmap_write(dev->regmap, 0xf9, 0x04); + if (ret) + goto err; + + ret = regmap_read(dev->regmap, 0xf8, &utmp); + if (ret) + goto err; + + /* measurement ready? */ + if (!(utmp & 0x10)) { + ret = regmap_bulk_read(dev->regmap, 0xf6, buf, 2); + if (ret) + goto err; + + post_bit_error = buf[1] << 8 | buf[0] << 0; + post_bit_count = 0x800000; + dev->post_bit_error += post_bit_error; + dev->post_bit_count += post_bit_count; + dev->dvbv3_ber = post_bit_error; + + /* restart measurement */ + utmp |= 0x10; + ret = regmap_write(dev->regmap, 0xf8, utmp); + if (ret) + goto err; + } + break; + case SYS_DVBS2: + ret = regmap_bulk_read(dev->regmap, 0xd5, buf, 3); + if (ret) + goto err; + + utmp = buf[2] << 16 | buf[1] << 8 | buf[0] << 0; + + /* enough data? */ + if (utmp > 4000) { + ret = regmap_bulk_read(dev->regmap, 0xf7, buf, 2); + if (ret) + goto err; + + post_bit_error = buf[1] << 8 | buf[0] << 0; + post_bit_count = 32 * utmp; /* TODO: FEC */ + dev->post_bit_error += post_bit_error; + dev->post_bit_count += post_bit_count; + dev->dvbv3_ber = post_bit_error; + + /* restart measurement */ + ret = regmap_write(dev->regmap, 0xd1, 0x01); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, 0xf9, 0x01); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, 0xf9, 0x00); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, 0xd1, 0x00); + if (ret) + goto err; + } + break; + default: + dev_dbg(&client->dev, "invalid delivery_system\n"); + ret = -EINVAL; + goto err; + } + + c->post_bit_error.stat[0].scale = FE_SCALE_COUNTER; + c->post_bit_error.stat[0].uvalue = dev->post_bit_error; + c->post_bit_count.stat[0].scale = FE_SCALE_COUNTER; + c->post_bit_count.stat[0].uvalue = dev->post_bit_count; + } else { + c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + } + + return 0; +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int m88ds3103_set_frontend(struct dvb_frontend *fe) +{ + struct m88ds3103_dev *dev = fe->demodulator_priv; + struct i2c_client *client = dev->client; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret, len; + const struct m88ds3103_reg_val *init; + u8 u8tmp, u8tmp1 = 0, u8tmp2 = 0; /* silence compiler warning */ + u8 buf[3]; + u16 u16tmp; + u32 tuner_frequency_khz, target_mclk; + s32 s32tmp; + static const struct reg_sequence reset_buf[] = { + {0x07, 0x80}, {0x07, 0x00} + }; + + dev_dbg(&client->dev, + "delivery_system=%d modulation=%d frequency=%u symbol_rate=%d inversion=%d pilot=%d rolloff=%d\n", + c->delivery_system, c->modulation, c->frequency, c->symbol_rate, + c->inversion, c->pilot, c->rolloff); + + if (!dev->warm) { + ret = -EAGAIN; + goto err; + } + + /* reset */ + ret = regmap_multi_reg_write(dev->regmap, reset_buf, 2); + if (ret) + goto err; + + /* Disable demod clock path */ + if (dev->chip_id == M88RS6000_CHIP_ID) { + ret = regmap_write(dev->regmap, 0x06, 0xe0); + if (ret) + goto err; + } + + /* program tuner */ + if (fe->ops.tuner_ops.set_params) { + ret = fe->ops.tuner_ops.set_params(fe); + if (ret) + goto err; + } + + if (fe->ops.tuner_ops.get_frequency) { + ret = fe->ops.tuner_ops.get_frequency(fe, &tuner_frequency_khz); + if (ret) + goto err; + } else { + /* + * Use nominal target frequency as tuner driver does not provide + * actual frequency used. Carrier offset calculation is not + * valid. + */ + tuner_frequency_khz = c->frequency; + } + + /* select M88RS6000 demod main mclk and ts mclk from tuner die. */ + if (dev->chip_id == M88RS6000_CHIP_ID) { + if (c->symbol_rate > 45010000) + dev->mclk = 110250000; + else + dev->mclk = 96000000; + + if (c->delivery_system == SYS_DVBS) + target_mclk = 96000000; + else + target_mclk = 144000000; + + /* Enable demod clock path */ + ret = regmap_write(dev->regmap, 0x06, 0x00); + if (ret) + goto err; + usleep_range(10000, 20000); + } else { + /* set M88DS3103 mclk and ts mclk. */ + dev->mclk = 96000000; + + switch (dev->cfg->ts_mode) { + case M88DS3103_TS_SERIAL: + case M88DS3103_TS_SERIAL_D7: + target_mclk = dev->cfg->ts_clk; + break; + case M88DS3103_TS_PARALLEL: + case M88DS3103_TS_CI: + if (c->delivery_system == SYS_DVBS) + target_mclk = 96000000; + else { + if (c->symbol_rate < 18000000) + target_mclk = 96000000; + else if (c->symbol_rate < 28000000) + target_mclk = 144000000; + else + target_mclk = 192000000; + } + break; + default: + dev_dbg(&client->dev, "invalid ts_mode\n"); + ret = -EINVAL; + goto err; + } + + switch (target_mclk) { + case 96000000: + u8tmp1 = 0x02; /* 0b10 */ + u8tmp2 = 0x01; /* 0b01 */ + break; + case 144000000: + u8tmp1 = 0x00; /* 0b00 */ + u8tmp2 = 0x01; /* 0b01 */ + break; + case 192000000: + u8tmp1 = 0x03; /* 0b11 */ + u8tmp2 = 0x00; /* 0b00 */ + break; + } + ret = m88ds3103_update_bits(dev, 0x22, 0xc0, u8tmp1 << 6); + if (ret) + goto err; + ret = m88ds3103_update_bits(dev, 0x24, 0xc0, u8tmp2 << 6); + if (ret) + goto err; + } + + ret = regmap_write(dev->regmap, 0xb2, 0x01); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, 0x00, 0x01); + if (ret) + goto err; + + switch (c->delivery_system) { + case SYS_DVBS: + if (dev->chip_id == M88RS6000_CHIP_ID) { + len = ARRAY_SIZE(m88rs6000_dvbs_init_reg_vals); + init = m88rs6000_dvbs_init_reg_vals; + } else { + len = ARRAY_SIZE(m88ds3103_dvbs_init_reg_vals); + init = m88ds3103_dvbs_init_reg_vals; + } + break; + case SYS_DVBS2: + if (dev->chip_id == M88RS6000_CHIP_ID) { + len = ARRAY_SIZE(m88rs6000_dvbs2_init_reg_vals); + init = m88rs6000_dvbs2_init_reg_vals; + } else { + len = ARRAY_SIZE(m88ds3103_dvbs2_init_reg_vals); + init = m88ds3103_dvbs2_init_reg_vals; + } + break; + default: + dev_dbg(&client->dev, "invalid delivery_system\n"); + ret = -EINVAL; + goto err; + } + + /* program init table */ + if (c->delivery_system != dev->delivery_system) { + ret = m88ds3103_wr_reg_val_tab(dev, init, len); + if (ret) + goto err; + } + + if (dev->chip_id == M88RS6000_CHIP_ID) { + if (c->delivery_system == SYS_DVBS2 && + c->symbol_rate <= 5000000) { + ret = regmap_write(dev->regmap, 0xc0, 0x04); + if (ret) + goto err; + buf[0] = 0x09; + buf[1] = 0x22; + buf[2] = 0x88; + ret = regmap_bulk_write(dev->regmap, 0x8a, buf, 3); + if (ret) + goto err; + } + ret = m88ds3103_update_bits(dev, 0x9d, 0x08, 0x08); + if (ret) + goto err; + ret = regmap_write(dev->regmap, 0xf1, 0x01); + if (ret) + goto err; + ret = m88ds3103_update_bits(dev, 0x30, 0x80, 0x80); + if (ret) + goto err; + } + + switch (dev->cfg->ts_mode) { + case M88DS3103_TS_SERIAL: + u8tmp1 = 0x00; + u8tmp = 0x06; + break; + case M88DS3103_TS_SERIAL_D7: + u8tmp1 = 0x20; + u8tmp = 0x06; + break; + case M88DS3103_TS_PARALLEL: + u8tmp = 0x02; + break; + case M88DS3103_TS_CI: + u8tmp = 0x03; + break; + default: + dev_dbg(&client->dev, "invalid ts_mode\n"); + ret = -EINVAL; + goto err; + } + + if (dev->cfg->ts_clk_pol) + u8tmp |= 0x40; + + /* TS mode */ + ret = regmap_write(dev->regmap, 0xfd, u8tmp); + if (ret) + goto err; + + switch (dev->cfg->ts_mode) { + case M88DS3103_TS_SERIAL: + case M88DS3103_TS_SERIAL_D7: + ret = m88ds3103_update_bits(dev, 0x29, 0x20, u8tmp1); + if (ret) + goto err; + u16tmp = 0; + u8tmp1 = 0x3f; + u8tmp2 = 0x3f; + break; + default: + u16tmp = DIV_ROUND_UP(target_mclk, dev->cfg->ts_clk); + u8tmp1 = u16tmp / 2 - 1; + u8tmp2 = DIV_ROUND_UP(u16tmp, 2) - 1; + } + + dev_dbg(&client->dev, "target_mclk=%u ts_clk=%u ts_clk_divide_ratio=%u\n", + target_mclk, dev->cfg->ts_clk, u16tmp); + + /* u8tmp1[5:2] => fe[3:0], u8tmp1[1:0] => ea[7:6] */ + /* u8tmp2[5:0] => ea[5:0] */ + u8tmp = (u8tmp1 >> 2) & 0x0f; + ret = regmap_update_bits(dev->regmap, 0xfe, 0x0f, u8tmp); + if (ret) + goto err; + u8tmp = ((u8tmp1 & 0x03) << 6) | u8tmp2 >> 0; + ret = regmap_write(dev->regmap, 0xea, u8tmp); + if (ret) + goto err; + + if (c->symbol_rate <= 3000000) + u8tmp = 0x20; + else if (c->symbol_rate <= 10000000) + u8tmp = 0x10; + else + u8tmp = 0x06; + + ret = regmap_write(dev->regmap, 0xc3, 0x08); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, 0xc8, u8tmp); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, 0xc4, 0x08); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, 0xc7, 0x00); + if (ret) + goto err; + + u16tmp = DIV_ROUND_CLOSEST_ULL((u64)c->symbol_rate * 0x10000, dev->mclk); + buf[0] = (u16tmp >> 0) & 0xff; + buf[1] = (u16tmp >> 8) & 0xff; + ret = regmap_bulk_write(dev->regmap, 0x61, buf, 2); + if (ret) + goto err; + + ret = m88ds3103_update_bits(dev, 0x4d, 0x02, dev->cfg->spec_inv << 1); + if (ret) + goto err; + + ret = m88ds3103_update_bits(dev, 0x30, 0x10, dev->cfg->agc_inv << 4); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, 0x33, dev->cfg->agc); + if (ret) + goto err; + + dev_dbg(&client->dev, "carrier offset=%d\n", + (tuner_frequency_khz - c->frequency)); + + /* Use 32-bit calc as there is no s64 version of DIV_ROUND_CLOSEST() */ + s32tmp = 0x10000 * (tuner_frequency_khz - c->frequency); + s32tmp = DIV_ROUND_CLOSEST(s32tmp, dev->mclk / 1000); + buf[0] = (s32tmp >> 0) & 0xff; + buf[1] = (s32tmp >> 8) & 0xff; + ret = regmap_bulk_write(dev->regmap, 0x5e, buf, 2); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, 0x00, 0x00); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, 0xb2, 0x00); + if (ret) + goto err; + + dev->delivery_system = c->delivery_system; + + return 0; +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int m88ds3103_init(struct dvb_frontend *fe) +{ + struct m88ds3103_dev *dev = fe->demodulator_priv; + struct i2c_client *client = dev->client; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + int ret, len, rem; + unsigned int utmp; + const struct firmware *firmware; + const char *name; + + dev_dbg(&client->dev, "\n"); + + /* set cold state by default */ + dev->warm = false; + + /* wake up device from sleep */ + ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x01); + if (ret) + goto err; + ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x00); + if (ret) + goto err; + ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x00); + if (ret) + goto err; + + /* firmware status */ + ret = regmap_read(dev->regmap, 0xb9, &utmp); + if (ret) + goto err; + + dev_dbg(&client->dev, "firmware=%02x\n", utmp); + + if (utmp) + goto warm; + + /* global reset, global diseqc reset, golbal fec reset */ + ret = regmap_write(dev->regmap, 0x07, 0xe0); + if (ret) + goto err; + ret = regmap_write(dev->regmap, 0x07, 0x00); + if (ret) + goto err; + + /* cold state - try to download firmware */ + dev_info(&client->dev, "found a '%s' in cold state\n", + m88ds3103_ops.info.name); + + if (dev->chip_id == M88RS6000_CHIP_ID) + name = M88RS6000_FIRMWARE; + else + name = M88DS3103_FIRMWARE; + /* request the firmware, this will block and timeout */ + ret = request_firmware(&firmware, name, &client->dev); + if (ret) { + dev_err(&client->dev, "firmware file '%s' not found\n", name); + goto err; + } + + dev_info(&client->dev, "downloading firmware from file '%s'\n", name); + + ret = regmap_write(dev->regmap, 0xb2, 0x01); + if (ret) + goto err_release_firmware; + + for (rem = firmware->size; rem > 0; rem -= (dev->cfg->i2c_wr_max - 1)) { + len = min(dev->cfg->i2c_wr_max - 1, rem); + ret = regmap_bulk_write(dev->regmap, 0xb0, + &firmware->data[firmware->size - rem], + len); + if (ret) { + dev_err(&client->dev, "firmware download failed %d\n", + ret); + goto err_release_firmware; + } + } + + ret = regmap_write(dev->regmap, 0xb2, 0x00); + if (ret) + goto err_release_firmware; + + release_firmware(firmware); + + ret = regmap_read(dev->regmap, 0xb9, &utmp); + if (ret) + goto err; + + if (!utmp) { + ret = -EINVAL; + dev_info(&client->dev, "firmware did not run\n"); + goto err; + } + + dev_info(&client->dev, "found a '%s' in warm state\n", + m88ds3103_ops.info.name); + dev_info(&client->dev, "firmware version: %X.%X\n", + (utmp >> 4) & 0xf, (utmp >> 0 & 0xf)); + +warm: + /* warm state */ + dev->warm = true; + + /* init stats here in order signal app which stats are supported */ + c->cnr.len = 1; + c->cnr.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->post_bit_error.len = 1; + c->post_bit_error.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + c->post_bit_count.len = 1; + c->post_bit_count.stat[0].scale = FE_SCALE_NOT_AVAILABLE; + + return 0; +err_release_firmware: + release_firmware(firmware); +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int m88ds3103_sleep(struct dvb_frontend *fe) +{ + struct m88ds3103_dev *dev = fe->demodulator_priv; + struct i2c_client *client = dev->client; + int ret; + unsigned int utmp; + + dev_dbg(&client->dev, "\n"); + + dev->fe_status = 0; + dev->delivery_system = SYS_UNDEFINED; + + /* TS Hi-Z */ + if (dev->chip_id == M88RS6000_CHIP_ID) + utmp = 0x29; + else + utmp = 0x27; + ret = m88ds3103_update_bits(dev, utmp, 0x01, 0x00); + if (ret) + goto err; + + /* sleep */ + ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x00); + if (ret) + goto err; + ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x01); + if (ret) + goto err; + ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x10); + if (ret) + goto err; + + return 0; +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int m88ds3103_get_frontend(struct dvb_frontend *fe, + struct dtv_frontend_properties *c) +{ + struct m88ds3103_dev *dev = fe->demodulator_priv; + struct i2c_client *client = dev->client; + int ret; + u8 buf[3]; + + dev_dbg(&client->dev, "\n"); + + if (!dev->warm || !(dev->fe_status & FE_HAS_LOCK)) { + ret = 0; + goto err; + } + + switch (c->delivery_system) { + case SYS_DVBS: + ret = regmap_bulk_read(dev->regmap, 0xe0, &buf[0], 1); + if (ret) + goto err; + + ret = regmap_bulk_read(dev->regmap, 0xe6, &buf[1], 1); + if (ret) + goto err; + + switch ((buf[0] >> 2) & 0x01) { + case 0: + c->inversion = INVERSION_OFF; + break; + case 1: + c->inversion = INVERSION_ON; + break; + } + + switch ((buf[1] >> 5) & 0x07) { + case 0: + c->fec_inner = FEC_7_8; + break; + case 1: + c->fec_inner = FEC_5_6; + break; + case 2: + c->fec_inner = FEC_3_4; + break; + case 3: + c->fec_inner = FEC_2_3; + break; + case 4: + c->fec_inner = FEC_1_2; + break; + default: + dev_dbg(&client->dev, "invalid fec_inner\n"); + } + + c->modulation = QPSK; + + break; + case SYS_DVBS2: + ret = regmap_bulk_read(dev->regmap, 0x7e, &buf[0], 1); + if (ret) + goto err; + + ret = regmap_bulk_read(dev->regmap, 0x89, &buf[1], 1); + if (ret) + goto err; + + ret = regmap_bulk_read(dev->regmap, 0xf2, &buf[2], 1); + if (ret) + goto err; + + switch ((buf[0] >> 0) & 0x0f) { + case 2: + c->fec_inner = FEC_2_5; + break; + case 3: + c->fec_inner = FEC_1_2; + break; + case 4: + c->fec_inner = FEC_3_5; + break; + case 5: + c->fec_inner = FEC_2_3; + break; + case 6: + c->fec_inner = FEC_3_4; + break; + case 7: + c->fec_inner = FEC_4_5; + break; + case 8: + c->fec_inner = FEC_5_6; + break; + case 9: + c->fec_inner = FEC_8_9; + break; + case 10: + c->fec_inner = FEC_9_10; + break; + default: + dev_dbg(&client->dev, "invalid fec_inner\n"); + } + + switch ((buf[0] >> 5) & 0x01) { + case 0: + c->pilot = PILOT_OFF; + break; + case 1: + c->pilot = PILOT_ON; + break; + } + + switch ((buf[0] >> 6) & 0x07) { + case 0: + c->modulation = QPSK; + break; + case 1: + c->modulation = PSK_8; + break; + case 2: + c->modulation = APSK_16; + break; + case 3: + c->modulation = APSK_32; + break; + default: + dev_dbg(&client->dev, "invalid modulation\n"); + } + + switch ((buf[1] >> 7) & 0x01) { + case 0: + c->inversion = INVERSION_OFF; + break; + case 1: + c->inversion = INVERSION_ON; + break; + } + + switch ((buf[2] >> 0) & 0x03) { + case 0: + c->rolloff = ROLLOFF_35; + break; + case 1: + c->rolloff = ROLLOFF_25; + break; + case 2: + c->rolloff = ROLLOFF_20; + break; + default: + dev_dbg(&client->dev, "invalid rolloff\n"); + } + break; + default: + dev_dbg(&client->dev, "invalid delivery_system\n"); + ret = -EINVAL; + goto err; + } + + ret = regmap_bulk_read(dev->regmap, 0x6d, buf, 2); + if (ret) + goto err; + + c->symbol_rate = DIV_ROUND_CLOSEST_ULL((u64)(buf[1] << 8 | buf[0] << 0) * dev->mclk, 0x10000); + + return 0; +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int m88ds3103_read_snr(struct dvb_frontend *fe, u16 *snr) +{ + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + + if (c->cnr.stat[0].scale == FE_SCALE_DECIBEL) + *snr = div_s64(c->cnr.stat[0].svalue, 100); + else + *snr = 0; + + return 0; +} + +static int m88ds3103_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + struct m88ds3103_dev *dev = fe->demodulator_priv; + + *ber = dev->dvbv3_ber; + + return 0; +} + +static int m88ds3103_set_tone(struct dvb_frontend *fe, + enum fe_sec_tone_mode fe_sec_tone_mode) +{ + struct m88ds3103_dev *dev = fe->demodulator_priv; + struct i2c_client *client = dev->client; + int ret; + unsigned int utmp, tone, reg_a1_mask; + + dev_dbg(&client->dev, "fe_sec_tone_mode=%d\n", fe_sec_tone_mode); + + if (!dev->warm) { + ret = -EAGAIN; + goto err; + } + + switch (fe_sec_tone_mode) { + case SEC_TONE_ON: + tone = 0; + reg_a1_mask = 0x47; + break; + case SEC_TONE_OFF: + tone = 1; + reg_a1_mask = 0x00; + break; + default: + dev_dbg(&client->dev, "invalid fe_sec_tone_mode\n"); + ret = -EINVAL; + goto err; + } + + utmp = tone << 7 | dev->cfg->envelope_mode << 5; + ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp); + if (ret) + goto err; + + utmp = 1 << 2; + ret = m88ds3103_update_bits(dev, 0xa1, reg_a1_mask, utmp); + if (ret) + goto err; + + return 0; +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int m88ds3103_set_voltage(struct dvb_frontend *fe, + enum fe_sec_voltage fe_sec_voltage) +{ + struct m88ds3103_dev *dev = fe->demodulator_priv; + struct i2c_client *client = dev->client; + int ret; + unsigned int utmp; + bool voltage_sel, voltage_dis; + + dev_dbg(&client->dev, "fe_sec_voltage=%d\n", fe_sec_voltage); + + if (!dev->warm) { + ret = -EAGAIN; + goto err; + } + + switch (fe_sec_voltage) { + case SEC_VOLTAGE_18: + voltage_sel = true; + voltage_dis = false; + break; + case SEC_VOLTAGE_13: + voltage_sel = false; + voltage_dis = false; + break; + case SEC_VOLTAGE_OFF: + voltage_sel = false; + voltage_dis = true; + break; + default: + dev_dbg(&client->dev, "invalid fe_sec_voltage\n"); + ret = -EINVAL; + goto err; + } + + /* output pin polarity */ + voltage_sel ^= dev->cfg->lnb_hv_pol; + voltage_dis ^= dev->cfg->lnb_en_pol; + + utmp = voltage_dis << 1 | voltage_sel << 0; + ret = m88ds3103_update_bits(dev, 0xa2, 0x03, utmp); + if (ret) + goto err; + + return 0; +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int m88ds3103_diseqc_send_master_cmd(struct dvb_frontend *fe, + struct dvb_diseqc_master_cmd *diseqc_cmd) +{ + struct m88ds3103_dev *dev = fe->demodulator_priv; + struct i2c_client *client = dev->client; + int ret; + unsigned int utmp; + unsigned long timeout; + + dev_dbg(&client->dev, "msg=%*ph\n", + diseqc_cmd->msg_len, diseqc_cmd->msg); + + if (!dev->warm) { + ret = -EAGAIN; + goto err; + } + + if (diseqc_cmd->msg_len < 3 || diseqc_cmd->msg_len > 6) { + ret = -EINVAL; + goto err; + } + + utmp = dev->cfg->envelope_mode << 5; + ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp); + if (ret) + goto err; + + ret = regmap_bulk_write(dev->regmap, 0xa3, diseqc_cmd->msg, + diseqc_cmd->msg_len); + if (ret) + goto err; + + ret = regmap_write(dev->regmap, 0xa1, + (diseqc_cmd->msg_len - 1) << 3 | 0x07); + if (ret) + goto err; + + /* wait DiSEqC TX ready */ + #define SEND_MASTER_CMD_TIMEOUT 120 + timeout = jiffies + msecs_to_jiffies(SEND_MASTER_CMD_TIMEOUT); + + /* DiSEqC message period is 13.5 ms per byte */ + utmp = diseqc_cmd->msg_len * 13500; + usleep_range(utmp - 4000, utmp); + + for (utmp = 1; !time_after(jiffies, timeout) && utmp;) { + ret = regmap_read(dev->regmap, 0xa1, &utmp); + if (ret) + goto err; + utmp = (utmp >> 6) & 0x1; + } + + if (utmp == 0) { + dev_dbg(&client->dev, "diseqc tx took %u ms\n", + jiffies_to_msecs(jiffies) - + (jiffies_to_msecs(timeout) - SEND_MASTER_CMD_TIMEOUT)); + } else { + dev_dbg(&client->dev, "diseqc tx timeout\n"); + + ret = m88ds3103_update_bits(dev, 0xa1, 0xc0, 0x40); + if (ret) + goto err; + } + + ret = m88ds3103_update_bits(dev, 0xa2, 0xc0, 0x80); + if (ret) + goto err; + + if (utmp == 1) { + ret = -ETIMEDOUT; + goto err; + } + + return 0; +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int m88ds3103_diseqc_send_burst(struct dvb_frontend *fe, + enum fe_sec_mini_cmd fe_sec_mini_cmd) +{ + struct m88ds3103_dev *dev = fe->demodulator_priv; + struct i2c_client *client = dev->client; + int ret; + unsigned int utmp, burst; + unsigned long timeout; + + dev_dbg(&client->dev, "fe_sec_mini_cmd=%d\n", fe_sec_mini_cmd); + + if (!dev->warm) { + ret = -EAGAIN; + goto err; + } + + utmp = dev->cfg->envelope_mode << 5; + ret = m88ds3103_update_bits(dev, 0xa2, 0xe0, utmp); + if (ret) + goto err; + + switch (fe_sec_mini_cmd) { + case SEC_MINI_A: + burst = 0x02; + break; + case SEC_MINI_B: + burst = 0x01; + break; + default: + dev_dbg(&client->dev, "invalid fe_sec_mini_cmd\n"); + ret = -EINVAL; + goto err; + } + + ret = regmap_write(dev->regmap, 0xa1, burst); + if (ret) + goto err; + + /* wait DiSEqC TX ready */ + #define SEND_BURST_TIMEOUT 40 + timeout = jiffies + msecs_to_jiffies(SEND_BURST_TIMEOUT); + + /* DiSEqC ToneBurst period is 12.5 ms */ + usleep_range(8500, 12500); + + for (utmp = 1; !time_after(jiffies, timeout) && utmp;) { + ret = regmap_read(dev->regmap, 0xa1, &utmp); + if (ret) + goto err; + utmp = (utmp >> 6) & 0x1; + } + + if (utmp == 0) { + dev_dbg(&client->dev, "diseqc tx took %u ms\n", + jiffies_to_msecs(jiffies) - + (jiffies_to_msecs(timeout) - SEND_BURST_TIMEOUT)); + } else { + dev_dbg(&client->dev, "diseqc tx timeout\n"); + + ret = m88ds3103_update_bits(dev, 0xa1, 0xc0, 0x40); + if (ret) + goto err; + } + + ret = m88ds3103_update_bits(dev, 0xa2, 0xc0, 0x80); + if (ret) + goto err; + + if (utmp == 1) { + ret = -ETIMEDOUT; + goto err; + } + + return 0; +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int m88ds3103_get_tune_settings(struct dvb_frontend *fe, + struct dvb_frontend_tune_settings *s) +{ + s->min_delay_ms = 3000; + + return 0; +} + +static void m88ds3103_release(struct dvb_frontend *fe) +{ + struct m88ds3103_dev *dev = fe->demodulator_priv; + struct i2c_client *client = dev->client; + + i2c_unregister_device(client); +} + +static int m88ds3103_select(struct i2c_mux_core *muxc, u32 chan) +{ + struct m88ds3103_dev *dev = i2c_mux_priv(muxc); + struct i2c_client *client = dev->client; + int ret; + struct i2c_msg msg = { + .addr = client->addr, + .flags = 0, + .len = 2, + .buf = "\x03\x11", + }; + + /* Open tuner I2C repeater for 1 xfer, closes automatically */ + ret = __i2c_transfer(client->adapter, &msg, 1); + if (ret != 1) { + dev_warn(&client->dev, "i2c wr failed=%d\n", ret); + if (ret >= 0) + ret = -EREMOTEIO; + return ret; + } + + return 0; +} + +/* + * XXX: That is wrapper to m88ds3103_probe() via driver core in order to provide + * proper I2C client for legacy media attach binding. + * New users must use I2C client binding directly! + */ +struct dvb_frontend *m88ds3103_attach(const struct m88ds3103_config *cfg, + struct i2c_adapter *i2c, + struct i2c_adapter **tuner_i2c_adapter) +{ + struct i2c_client *client; + struct i2c_board_info board_info; + struct m88ds3103_platform_data pdata = {}; + + pdata.clk = cfg->clock; + pdata.i2c_wr_max = cfg->i2c_wr_max; + pdata.ts_mode = cfg->ts_mode; + pdata.ts_clk = cfg->ts_clk; + pdata.ts_clk_pol = cfg->ts_clk_pol; + pdata.spec_inv = cfg->spec_inv; + pdata.agc = cfg->agc; + pdata.agc_inv = cfg->agc_inv; + pdata.clk_out = cfg->clock_out; + pdata.envelope_mode = cfg->envelope_mode; + pdata.lnb_hv_pol = cfg->lnb_hv_pol; + pdata.lnb_en_pol = cfg->lnb_en_pol; + pdata.attach_in_use = true; + + memset(&board_info, 0, sizeof(board_info)); + strlcpy(board_info.type, "m88ds3103", I2C_NAME_SIZE); + board_info.addr = cfg->i2c_addr; + board_info.platform_data = &pdata; + client = i2c_new_device(i2c, &board_info); + if (!client || !client->dev.driver) + return NULL; + + *tuner_i2c_adapter = pdata.get_i2c_adapter(client); + return pdata.get_dvb_frontend(client); +} +EXPORT_SYMBOL(m88ds3103_attach); + +static const struct dvb_frontend_ops m88ds3103_ops = { + .delsys = {SYS_DVBS, SYS_DVBS2}, + .info = { + .name = "Montage Technology M88DS3103", + .frequency_min_hz = 950 * MHz, + .frequency_max_hz = 2150 * MHz, + .frequency_tolerance_hz = 5 * MHz, + .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 = m88ds3103_release, + + .get_tune_settings = m88ds3103_get_tune_settings, + + .init = m88ds3103_init, + .sleep = m88ds3103_sleep, + + .set_frontend = m88ds3103_set_frontend, + .get_frontend = m88ds3103_get_frontend, + + .read_status = m88ds3103_read_status, + .read_snr = m88ds3103_read_snr, + .read_ber = m88ds3103_read_ber, + + .diseqc_send_master_cmd = m88ds3103_diseqc_send_master_cmd, + .diseqc_send_burst = m88ds3103_diseqc_send_burst, + + .set_tone = m88ds3103_set_tone, + .set_voltage = m88ds3103_set_voltage, +}; + +static struct dvb_frontend *m88ds3103_get_dvb_frontend(struct i2c_client *client) +{ + struct m88ds3103_dev *dev = i2c_get_clientdata(client); + + dev_dbg(&client->dev, "\n"); + + return &dev->fe; +} + +static struct i2c_adapter *m88ds3103_get_i2c_adapter(struct i2c_client *client) +{ + struct m88ds3103_dev *dev = i2c_get_clientdata(client); + + dev_dbg(&client->dev, "\n"); + + return dev->muxc->adapter[0]; +} + +static int m88ds3103_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct m88ds3103_dev *dev; + struct m88ds3103_platform_data *pdata = client->dev.platform_data; + int ret; + unsigned int utmp; + + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) { + ret = -ENOMEM; + goto err; + } + + dev->client = client; + dev->config.clock = pdata->clk; + dev->config.i2c_wr_max = pdata->i2c_wr_max; + dev->config.ts_mode = pdata->ts_mode; + dev->config.ts_clk = pdata->ts_clk * 1000; + dev->config.ts_clk_pol = pdata->ts_clk_pol; + dev->config.spec_inv = pdata->spec_inv; + dev->config.agc_inv = pdata->agc_inv; + dev->config.clock_out = pdata->clk_out; + dev->config.envelope_mode = pdata->envelope_mode; + dev->config.agc = pdata->agc; + dev->config.lnb_hv_pol = pdata->lnb_hv_pol; + dev->config.lnb_en_pol = pdata->lnb_en_pol; + dev->cfg = &dev->config; + /* create regmap */ + dev->regmap_config.reg_bits = 8, + dev->regmap_config.val_bits = 8, + dev->regmap_config.lock_arg = dev, + dev->regmap = devm_regmap_init_i2c(client, &dev->regmap_config); + if (IS_ERR(dev->regmap)) { + ret = PTR_ERR(dev->regmap); + goto err_kfree; + } + + /* 0x00: chip id[6:0], 0x01: chip ver[7:0], 0x02: chip ver[15:8] */ + ret = regmap_read(dev->regmap, 0x00, &utmp); + if (ret) + goto err_kfree; + + dev->chip_id = utmp >> 1; + dev_dbg(&client->dev, "chip_id=%02x\n", dev->chip_id); + + switch (dev->chip_id) { + case M88RS6000_CHIP_ID: + case M88DS3103_CHIP_ID: + break; + default: + ret = -ENODEV; + dev_err(&client->dev, "Unknown device. Chip_id=%02x\n", dev->chip_id); + goto err_kfree; + } + + switch (dev->cfg->clock_out) { + case M88DS3103_CLOCK_OUT_DISABLED: + utmp = 0x80; + break; + case M88DS3103_CLOCK_OUT_ENABLED: + utmp = 0x00; + break; + case M88DS3103_CLOCK_OUT_ENABLED_DIV2: + utmp = 0x10; + break; + default: + ret = -EINVAL; + goto err_kfree; + } + + if (!pdata->ts_clk) { + ret = -EINVAL; + goto err_kfree; + } + + /* 0x29 register is defined differently for m88rs6000. */ + /* set internal tuner address to 0x21 */ + if (dev->chip_id == M88RS6000_CHIP_ID) + utmp = 0x00; + + ret = regmap_write(dev->regmap, 0x29, utmp); + if (ret) + goto err_kfree; + + /* sleep */ + ret = m88ds3103_update_bits(dev, 0x08, 0x01, 0x00); + if (ret) + goto err_kfree; + ret = m88ds3103_update_bits(dev, 0x04, 0x01, 0x01); + if (ret) + goto err_kfree; + ret = m88ds3103_update_bits(dev, 0x23, 0x10, 0x10); + if (ret) + goto err_kfree; + + /* create mux i2c adapter for tuner */ + dev->muxc = i2c_mux_alloc(client->adapter, &client->dev, 1, 0, 0, + m88ds3103_select, NULL); + if (!dev->muxc) { + ret = -ENOMEM; + goto err_kfree; + } + dev->muxc->priv = dev; + ret = i2c_mux_add_adapter(dev->muxc, 0, 0, 0); + if (ret) + goto err_kfree; + + /* create dvb_frontend */ + memcpy(&dev->fe.ops, &m88ds3103_ops, sizeof(struct dvb_frontend_ops)); + if (dev->chip_id == M88RS6000_CHIP_ID) + strncpy(dev->fe.ops.info.name, "Montage Technology M88RS6000", + sizeof(dev->fe.ops.info.name)); + if (!pdata->attach_in_use) + dev->fe.ops.release = NULL; + dev->fe.demodulator_priv = dev; + i2c_set_clientdata(client, dev); + + /* setup callbacks */ + pdata->get_dvb_frontend = m88ds3103_get_dvb_frontend; + pdata->get_i2c_adapter = m88ds3103_get_i2c_adapter; + return 0; +err_kfree: + kfree(dev); +err: + dev_dbg(&client->dev, "failed=%d\n", ret); + return ret; +} + +static int m88ds3103_remove(struct i2c_client *client) +{ + struct m88ds3103_dev *dev = i2c_get_clientdata(client); + + dev_dbg(&client->dev, "\n"); + + i2c_mux_del_adapters(dev->muxc); + + kfree(dev); + return 0; +} + +static const struct i2c_device_id m88ds3103_id_table[] = { + {"m88ds3103", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, m88ds3103_id_table); + +static struct i2c_driver m88ds3103_driver = { + .driver = { + .name = "m88ds3103", + .suppress_bind_attrs = true, + }, + .probe = m88ds3103_probe, + .remove = m88ds3103_remove, + .id_table = m88ds3103_id_table, +}; + +module_i2c_driver(m88ds3103_driver); + +MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>"); +MODULE_DESCRIPTION("Montage Technology M88DS3103 DVB-S/S2 demodulator driver"); +MODULE_LICENSE("GPL"); +MODULE_FIRMWARE(M88DS3103_FIRMWARE); +MODULE_FIRMWARE(M88RS6000_FIRMWARE); |