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path: root/drivers/media/dvb/frontends/af9013.c
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Diffstat (limited to 'drivers/media/dvb/frontends/af9013.c')
-rw-r--r--drivers/media/dvb/frontends/af9013.c1577
1 files changed, 0 insertions, 1577 deletions
diff --git a/drivers/media/dvb/frontends/af9013.c b/drivers/media/dvb/frontends/af9013.c
deleted file mode 100644
index e2a95c07bab..00000000000
--- a/drivers/media/dvb/frontends/af9013.c
+++ /dev/null
@@ -1,1577 +0,0 @@
-/*
- * Afatech AF9013 demodulator driver
- *
- * Copyright (C) 2007 Antti Palosaari <crope@iki.fi>
- *
- * Thanks to Afatech who kindly provided information.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/firmware.h>
-
-#include "dvb_frontend.h"
-#include "af9013_priv.h"
-#include "af9013.h"
-
-int af9013_debug;
-
-struct af9013_state {
- struct i2c_adapter *i2c;
- struct dvb_frontend frontend;
-
- struct af9013_config config;
-
- /* tuner/demod RF and IF AGC limits used for signal strength calc */
- u8 signal_strength_en, rf_50, rf_80, if_50, if_80;
- u16 signal_strength;
- u32 ber;
- u32 ucblocks;
- u16 snr;
- u32 frequency;
- unsigned long next_statistics_check;
-};
-
-static u8 regmask[8] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f, 0x7f, 0xff };
-
-static int af9013_write_regs(struct af9013_state *state, u8 mbox, u16 reg,
- u8 *val, u8 len)
-{
- u8 buf[3+len];
- struct i2c_msg msg = {
- .addr = state->config.demod_address,
- .flags = 0,
- .len = sizeof(buf),
- .buf = buf };
-
- buf[0] = reg >> 8;
- buf[1] = reg & 0xff;
- buf[2] = mbox;
- memcpy(&buf[3], val, len);
-
- if (i2c_transfer(state->i2c, &msg, 1) != 1) {
- warn("I2C write failed reg:%04x len:%d", reg, len);
- return -EREMOTEIO;
- }
- return 0;
-}
-
-static int af9013_write_ofdm_regs(struct af9013_state *state, u16 reg, u8 *val,
- u8 len)
-{
- u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(0 << 6)|(0 << 7);
- return af9013_write_regs(state, mbox, reg, val, len);
-}
-
-static int af9013_write_ofsm_regs(struct af9013_state *state, u16 reg, u8 *val,
- u8 len)
-{
- u8 mbox = (1 << 0)|(1 << 1)|((len - 1) << 2)|(1 << 6)|(1 << 7);
- return af9013_write_regs(state, mbox, reg, val, len);
-}
-
-/* write single register */
-static int af9013_write_reg(struct af9013_state *state, u16 reg, u8 val)
-{
- return af9013_write_ofdm_regs(state, reg, &val, 1);
-}
-
-/* read single register */
-static int af9013_read_reg(struct af9013_state *state, u16 reg, u8 *val)
-{
- u8 obuf[3] = { reg >> 8, reg & 0xff, 0 };
- u8 ibuf[1];
- struct i2c_msg msg[2] = {
- {
- .addr = state->config.demod_address,
- .flags = 0,
- .len = sizeof(obuf),
- .buf = obuf
- }, {
- .addr = state->config.demod_address,
- .flags = I2C_M_RD,
- .len = sizeof(ibuf),
- .buf = ibuf
- }
- };
-
- if (i2c_transfer(state->i2c, msg, 2) != 2) {
- warn("I2C read failed reg:%04x", reg);
- return -EREMOTEIO;
- }
- *val = ibuf[0];
- return 0;
-}
-
-static int af9013_write_reg_bits(struct af9013_state *state, u16 reg, u8 pos,
- u8 len, u8 val)
-{
- int ret;
- u8 tmp, mask;
-
- ret = af9013_read_reg(state, reg, &tmp);
- if (ret)
- return ret;
-
- mask = regmask[len - 1] << pos;
- tmp = (tmp & ~mask) | ((val << pos) & mask);
-
- return af9013_write_reg(state, reg, tmp);
-}
-
-static int af9013_read_reg_bits(struct af9013_state *state, u16 reg, u8 pos,
- u8 len, u8 *val)
-{
- int ret;
- u8 tmp;
-
- ret = af9013_read_reg(state, reg, &tmp);
- if (ret)
- return ret;
- *val = (tmp >> pos) & regmask[len - 1];
- return 0;
-}
-
-static int af9013_set_gpio(struct af9013_state *state, u8 gpio, u8 gpioval)
-{
- int ret;
- u8 pos;
- u16 addr;
- deb_info("%s: gpio:%d gpioval:%02x\n", __func__, gpio, gpioval);
-
-/* GPIO0 & GPIO1 0xd735
- GPIO2 & GPIO3 0xd736 */
-
- switch (gpio) {
- case 0:
- case 1:
- addr = 0xd735;
- break;
- case 2:
- case 3:
- addr = 0xd736;
- break;
-
- default:
- err("invalid gpio:%d\n", gpio);
- ret = -EINVAL;
- goto error;
- };
-
- switch (gpio) {
- case 0:
- case 2:
- pos = 0;
- break;
- case 1:
- case 3:
- default:
- pos = 4;
- break;
- };
-
- ret = af9013_write_reg_bits(state, addr, pos, 4, gpioval);
-
-error:
- return ret;
-}
-
-static u32 af913_div(u32 a, u32 b, u32 x)
-{
- u32 r = 0, c = 0, i;
- deb_info("%s: a:%d b:%d x:%d\n", __func__, a, b, x);
-
- if (a > b) {
- c = a / b;
- a = a - c * b;
- }
-
- for (i = 0; i < x; i++) {
- if (a >= b) {
- r += 1;
- a -= b;
- }
- a <<= 1;
- r <<= 1;
- }
- r = (c << (u32)x) + r;
-
- deb_info("%s: a:%d b:%d x:%d r:%d r:%x\n", __func__, a, b, x, r, r);
- return r;
-}
-
-static int af9013_set_coeff(struct af9013_state *state, fe_bandwidth_t bw)
-{
- int ret, i, j, found;
- deb_info("%s: adc_clock:%d bw:%d\n", __func__,
- state->config.adc_clock, bw);
-
- /* lookup coeff from table */
- for (i = 0, found = 0; i < ARRAY_SIZE(coeff_table); i++) {
- if (coeff_table[i].adc_clock == state->config.adc_clock &&
- coeff_table[i].bw == bw) {
- found = 1;
- break;
- }
- }
-
- if (!found) {
- err("invalid bw or clock");
- ret = -EINVAL;
- goto error;
- }
-
- deb_info("%s: coeff: ", __func__);
- debug_dump(coeff_table[i].val, sizeof(coeff_table[i].val), deb_info);
-
- /* program */
- for (j = 0; j < sizeof(coeff_table[i].val); j++) {
- ret = af9013_write_reg(state, 0xae00 + j,
- coeff_table[i].val[j]);
- if (ret)
- break;
- }
-
-error:
- return ret;
-}
-
-static int af9013_set_adc_ctrl(struct af9013_state *state)
-{
- int ret;
- u8 buf[3], tmp, i;
- u32 adc_cw;
-
- deb_info("%s: adc_clock:%d\n", __func__, state->config.adc_clock);
-
- /* adc frequency type */
- switch (state->config.adc_clock) {
- case 28800: /* 28.800 MHz */
- tmp = 0;
- break;
- case 20480: /* 20.480 MHz */
- tmp = 1;
- break;
- case 28000: /* 28.000 MHz */
- tmp = 2;
- break;
- case 25000: /* 25.000 MHz */
- tmp = 3;
- break;
- default:
- err("invalid xtal");
- return -EINVAL;
- }
-
- adc_cw = af913_div(state->config.adc_clock*1000, 1000000ul, 19ul);
-
- buf[0] = (u8) ((adc_cw & 0x000000ff));
- buf[1] = (u8) ((adc_cw & 0x0000ff00) >> 8);
- buf[2] = (u8) ((adc_cw & 0x00ff0000) >> 16);
-
- deb_info("%s: adc_cw:", __func__);
- debug_dump(buf, sizeof(buf), deb_info);
-
- /* program */
- for (i = 0; i < sizeof(buf); i++) {
- ret = af9013_write_reg(state, 0xd180 + i, buf[i]);
- if (ret)
- goto error;
- }
- ret = af9013_write_reg_bits(state, 0x9bd2, 0, 4, tmp);
-error:
- return ret;
-}
-
-static int af9013_set_freq_ctrl(struct af9013_state *state, fe_bandwidth_t bw)
-{
- int ret;
- u16 addr;
- u8 buf[3], i, j;
- u32 adc_freq, freq_cw;
- s8 bfs_spec_inv;
- int if_sample_freq;
-
- for (j = 0; j < 3; j++) {
- if (j == 0) {
- addr = 0xd140; /* fcw normal */
- bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1;
- } else if (j == 1) {
- addr = 0x9be7; /* fcw dummy ram */
- bfs_spec_inv = state->config.rf_spec_inv ? -1 : 1;
- } else {
- addr = 0x9bea; /* fcw inverted */
- bfs_spec_inv = state->config.rf_spec_inv ? 1 : -1;
- }
-
- adc_freq = state->config.adc_clock * 1000;
- if_sample_freq = state->config.tuner_if * 1000;
-
- /* TDA18271 uses different sampling freq for every bw */
- if (state->config.tuner == AF9013_TUNER_TDA18271) {
- switch (bw) {
- case BANDWIDTH_6_MHZ:
- if_sample_freq = 3300000; /* 3.3 MHz */
- break;
- case BANDWIDTH_7_MHZ:
- if_sample_freq = 3800000; /* 3.8 MHz */
- break;
- case BANDWIDTH_8_MHZ:
- default:
- if_sample_freq = 4300000; /* 4.3 MHz */
- break;
- }
- } else if (state->config.tuner == AF9013_TUNER_TDA18218) {
- switch (bw) {
- case BANDWIDTH_6_MHZ:
- if_sample_freq = 3000000; /* 3 MHz */
- break;
- case BANDWIDTH_7_MHZ:
- if_sample_freq = 3500000; /* 3.5 MHz */
- break;
- case BANDWIDTH_8_MHZ:
- default:
- if_sample_freq = 4000000; /* 4 MHz */
- break;
- }
- }
-
- while (if_sample_freq > (adc_freq / 2))
- if_sample_freq = if_sample_freq - adc_freq;
-
- if (if_sample_freq >= 0)
- bfs_spec_inv = bfs_spec_inv * (-1);
- else
- if_sample_freq = if_sample_freq * (-1);
-
- freq_cw = af913_div(if_sample_freq, adc_freq, 23ul);
-
- if (bfs_spec_inv == -1)
- freq_cw = 0x00800000 - freq_cw;
-
- buf[0] = (u8) ((freq_cw & 0x000000ff));
- buf[1] = (u8) ((freq_cw & 0x0000ff00) >> 8);
- buf[2] = (u8) ((freq_cw & 0x007f0000) >> 16);
-
-
- deb_info("%s: freq_cw:", __func__);
- debug_dump(buf, sizeof(buf), deb_info);
-
- /* program */
- for (i = 0; i < sizeof(buf); i++) {
- ret = af9013_write_reg(state, addr++, buf[i]);
- if (ret)
- goto error;
- }
- }
-error:
- return ret;
-}
-
-static int af9013_set_ofdm_params(struct af9013_state *state,
- struct dvb_ofdm_parameters *params, u8 *auto_mode)
-{
- int ret;
- u8 i, buf[3] = {0, 0, 0};
- *auto_mode = 0; /* set if parameters are requested to auto set */
-
- /* Try auto-detect transmission parameters in case of AUTO requested or
- garbage parameters given by application for compatibility.
- MPlayer seems to provide garbage parameters currently. */
-
- switch (params->transmission_mode) {
- case TRANSMISSION_MODE_AUTO:
- *auto_mode = 1;
- case TRANSMISSION_MODE_2K:
- break;
- case TRANSMISSION_MODE_8K:
- buf[0] |= (1 << 0);
- break;
- default:
- deb_info("%s: invalid transmission_mode\n", __func__);
- *auto_mode = 1;
- }
-
- switch (params->guard_interval) {
- case GUARD_INTERVAL_AUTO:
- *auto_mode = 1;
- case GUARD_INTERVAL_1_32:
- break;
- case GUARD_INTERVAL_1_16:
- buf[0] |= (1 << 2);
- break;
- case GUARD_INTERVAL_1_8:
- buf[0] |= (2 << 2);
- break;
- case GUARD_INTERVAL_1_4:
- buf[0] |= (3 << 2);
- break;
- default:
- deb_info("%s: invalid guard_interval\n", __func__);
- *auto_mode = 1;
- }
-
- switch (params->hierarchy_information) {
- case HIERARCHY_AUTO:
- *auto_mode = 1;
- case HIERARCHY_NONE:
- break;
- case HIERARCHY_1:
- buf[0] |= (1 << 4);
- break;
- case HIERARCHY_2:
- buf[0] |= (2 << 4);
- break;
- case HIERARCHY_4:
- buf[0] |= (3 << 4);
- break;
- default:
- deb_info("%s: invalid hierarchy_information\n", __func__);
- *auto_mode = 1;
- };
-
- switch (params->constellation) {
- case QAM_AUTO:
- *auto_mode = 1;
- case QPSK:
- break;
- case QAM_16:
- buf[1] |= (1 << 6);
- break;
- case QAM_64:
- buf[1] |= (2 << 6);
- break;
- default:
- deb_info("%s: invalid constellation\n", __func__);
- *auto_mode = 1;
- }
-
- /* Use HP. How and which case we can switch to LP? */
- buf[1] |= (1 << 4);
-
- switch (params->code_rate_HP) {
- case FEC_AUTO:
- *auto_mode = 1;
- case FEC_1_2:
- break;
- case FEC_2_3:
- buf[2] |= (1 << 0);
- break;
- case FEC_3_4:
- buf[2] |= (2 << 0);
- break;
- case FEC_5_6:
- buf[2] |= (3 << 0);
- break;
- case FEC_7_8:
- buf[2] |= (4 << 0);
- break;
- default:
- deb_info("%s: invalid code_rate_HP\n", __func__);
- *auto_mode = 1;
- }
-
- switch (params->code_rate_LP) {
- case FEC_AUTO:
- /* if HIERARCHY_NONE and FEC_NONE then LP FEC is set to FEC_AUTO
- by dvb_frontend.c for compatibility */
- if (params->hierarchy_information != HIERARCHY_NONE)
- *auto_mode = 1;
- case FEC_1_2:
- break;
- case FEC_2_3:
- buf[2] |= (1 << 3);
- break;
- case FEC_3_4:
- buf[2] |= (2 << 3);
- break;
- case FEC_5_6:
- buf[2] |= (3 << 3);
- break;
- case FEC_7_8:
- buf[2] |= (4 << 3);
- break;
- case FEC_NONE:
- if (params->hierarchy_information == HIERARCHY_AUTO)
- break;
- default:
- deb_info("%s: invalid code_rate_LP\n", __func__);
- *auto_mode = 1;
- }
-
- switch (params->bandwidth) {
- case BANDWIDTH_6_MHZ:
- break;
- case BANDWIDTH_7_MHZ:
- buf[1] |= (1 << 2);
- break;
- case BANDWIDTH_8_MHZ:
- buf[1] |= (2 << 2);
- break;
- default:
- deb_info("%s: invalid bandwidth\n", __func__);
- buf[1] |= (2 << 2); /* cannot auto-detect BW, try 8 MHz */
- }
-
- /* program */
- for (i = 0; i < sizeof(buf); i++) {
- ret = af9013_write_reg(state, 0xd3c0 + i, buf[i]);
- if (ret)
- break;
- }
-
- return ret;
-}
-
-static int af9013_reset(struct af9013_state *state, u8 sleep)
-{
- int ret;
- u8 tmp, i;
- deb_info("%s\n", __func__);
-
- /* enable OFDM reset */
- ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 1);
- if (ret)
- goto error;
-
- /* start reset mechanism */
- ret = af9013_write_reg(state, 0xaeff, 1);
- if (ret)
- goto error;
-
- /* reset is done when bit 1 is set */
- for (i = 0; i < 150; i++) {
- ret = af9013_read_reg_bits(state, 0xd417, 1, 1, &tmp);
- if (ret)
- goto error;
- if (tmp)
- break; /* reset done */
- msleep(10);
- }
- if (!tmp)
- return -ETIMEDOUT;
-
- /* don't clear reset when going to sleep */
- if (!sleep) {
- /* clear OFDM reset */
- ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0);
- if (ret)
- goto error;
-
- /* disable OFDM reset */
- ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0);
- }
-error:
- return ret;
-}
-
-static int af9013_power_ctrl(struct af9013_state *state, u8 onoff)
-{
- int ret;
- deb_info("%s: onoff:%d\n", __func__, onoff);
-
- if (onoff) {
- /* power on */
- ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 0);
- if (ret)
- goto error;
- ret = af9013_write_reg_bits(state, 0xd417, 1, 1, 0);
- if (ret)
- goto error;
- ret = af9013_write_reg_bits(state, 0xd417, 4, 1, 0);
- } else {
- /* power off */
- ret = af9013_reset(state, 1);
- if (ret)
- goto error;
- ret = af9013_write_reg_bits(state, 0xd73a, 3, 1, 1);
- }
-error:
- return ret;
-}
-
-static int af9013_lock_led(struct af9013_state *state, u8 onoff)
-{
- deb_info("%s: onoff:%d\n", __func__, onoff);
-
- return af9013_write_reg_bits(state, 0xd730, 0, 1, onoff);
-}
-
-static int af9013_set_frontend(struct dvb_frontend *fe,
- struct dvb_frontend_parameters *params)
-{
- struct af9013_state *state = fe->demodulator_priv;
- int ret;
- u8 auto_mode; /* auto set TPS */
-
- deb_info("%s: freq:%d bw:%d\n", __func__, params->frequency,
- params->u.ofdm.bandwidth);
-
- state->frequency = params->frequency;
-
- /* program tuner */
- if (fe->ops.tuner_ops.set_params)
- fe->ops.tuner_ops.set_params(fe, params);
-
- /* program CFOE coefficients */
- ret = af9013_set_coeff(state, params->u.ofdm.bandwidth);
- if (ret)
- goto error;
-
- /* program frequency control */
- ret = af9013_set_freq_ctrl(state, params->u.ofdm.bandwidth);
- if (ret)
- goto error;
-
- /* clear TPS lock flag (inverted flag) */
- ret = af9013_write_reg_bits(state, 0xd330, 3, 1, 1);
- if (ret)
- goto error;
-
- /* clear MPEG2 lock flag */
- ret = af9013_write_reg_bits(state, 0xd507, 6, 1, 0);
- if (ret)
- goto error;
-
- /* empty channel function */
- ret = af9013_write_reg_bits(state, 0x9bfe, 0, 1, 0);
- if (ret)
- goto error;
-
- /* empty DVB-T channel function */
- ret = af9013_write_reg_bits(state, 0x9bc2, 0, 1, 0);
- if (ret)
- goto error;
-
- /* program TPS and bandwidth, check if auto mode needed */
- ret = af9013_set_ofdm_params(state, &params->u.ofdm, &auto_mode);
- if (ret)
- goto error;
-
- if (auto_mode) {
- /* clear easy mode flag */
- ret = af9013_write_reg(state, 0xaefd, 0);
- deb_info("%s: auto TPS\n", __func__);
- } else {
- /* set easy mode flag */
- ret = af9013_write_reg(state, 0xaefd, 1);
- if (ret)
- goto error;
- ret = af9013_write_reg(state, 0xaefe, 0);
- deb_info("%s: manual TPS\n", __func__);
- }
- if (ret)
- goto error;
-
- /* everything is set, lets try to receive channel - OFSM GO! */
- ret = af9013_write_reg(state, 0xffff, 0);
- if (ret)
- goto error;
-
-error:
- return ret;
-}
-
-static int af9013_get_frontend(struct dvb_frontend *fe,
- struct dvb_frontend_parameters *p)
-{
- struct af9013_state *state = fe->demodulator_priv;
- int ret;
- u8 i, buf[3];
- deb_info("%s\n", __func__);
-
- /* read TPS registers */
- for (i = 0; i < 3; i++) {
- ret = af9013_read_reg(state, 0xd3c0 + i, &buf[i]);
- if (ret)
- goto error;
- }
-
- switch ((buf[1] >> 6) & 3) {
- case 0:
- p->u.ofdm.constellation = QPSK;
- break;
- case 1:
- p->u.ofdm.constellation = QAM_16;
- break;
- case 2:
- p->u.ofdm.constellation = QAM_64;
- break;
- }
-
- switch ((buf[0] >> 0) & 3) {
- case 0:
- p->u.ofdm.transmission_mode = TRANSMISSION_MODE_2K;
- break;
- case 1:
- p->u.ofdm.transmission_mode = TRANSMISSION_MODE_8K;
- }
-
- switch ((buf[0] >> 2) & 3) {
- case 0:
- p->u.ofdm.guard_interval = GUARD_INTERVAL_1_32;
- break;
- case 1:
- p->u.ofdm.guard_interval = GUARD_INTERVAL_1_16;
- break;
- case 2:
- p->u.ofdm.guard_interval = GUARD_INTERVAL_1_8;
- break;
- case 3:
- p->u.ofdm.guard_interval = GUARD_INTERVAL_1_4;
- break;
- }
-
- switch ((buf[0] >> 4) & 7) {
- case 0:
- p->u.ofdm.hierarchy_information = HIERARCHY_NONE;
- break;
- case 1:
- p->u.ofdm.hierarchy_information = HIERARCHY_1;
- break;
- case 2:
- p->u.ofdm.hierarchy_information = HIERARCHY_2;
- break;
- case 3:
- p->u.ofdm.hierarchy_information = HIERARCHY_4;
- break;
- }
-
- switch ((buf[2] >> 0) & 7) {
- case 0:
- p->u.ofdm.code_rate_HP = FEC_1_2;
- break;
- case 1:
- p->u.ofdm.code_rate_HP = FEC_2_3;
- break;
- case 2:
- p->u.ofdm.code_rate_HP = FEC_3_4;
- break;
- case 3:
- p->u.ofdm.code_rate_HP = FEC_5_6;
- break;
- case 4:
- p->u.ofdm.code_rate_HP = FEC_7_8;
- break;
- }
-
- switch ((buf[2] >> 3) & 7) {
- case 0:
- p->u.ofdm.code_rate_LP = FEC_1_2;
- break;
- case 1:
- p->u.ofdm.code_rate_LP = FEC_2_3;
- break;
- case 2:
- p->u.ofdm.code_rate_LP = FEC_3_4;
- break;
- case 3:
- p->u.ofdm.code_rate_LP = FEC_5_6;
- break;
- case 4:
- p->u.ofdm.code_rate_LP = FEC_7_8;
- break;
- }
-
- switch ((buf[1] >> 2) & 3) {
- case 0:
- p->u.ofdm.bandwidth = BANDWIDTH_6_MHZ;
- break;
- case 1:
- p->u.ofdm.bandwidth = BANDWIDTH_7_MHZ;
- break;
- case 2:
- p->u.ofdm.bandwidth = BANDWIDTH_8_MHZ;
- break;
- }
-
- p->inversion = INVERSION_AUTO;
- p->frequency = state->frequency;
-
-error:
- return ret;
-}
-
-static int af9013_update_ber_unc(struct dvb_frontend *fe)
-{
- struct af9013_state *state = fe->demodulator_priv;
- int ret;
- u8 buf[3], i;
- u32 error_bit_count = 0;
- u32 total_bit_count = 0;
- u32 abort_packet_count = 0;
-
- state->ber = 0;
-
- /* check if error bit count is ready */
- ret = af9013_read_reg_bits(state, 0xd391, 4, 1, &buf[0]);
- if (ret)
- goto error;
- if (!buf[0])
- goto exit;
-
- /* get RSD packet abort count */
- for (i = 0; i < 2; i++) {
- ret = af9013_read_reg(state, 0xd38a + i, &buf[i]);
- if (ret)
- goto error;
- }
- abort_packet_count = (buf[1] << 8) + buf[0];
-
- /* get error bit count */
- for (i = 0; i < 3; i++) {
- ret = af9013_read_reg(state, 0xd387 + i, &buf[i]);
- if (ret)
- goto error;
- }
- error_bit_count = (buf[2] << 16) + (buf[1] << 8) + buf[0];
- error_bit_count = error_bit_count - abort_packet_count * 8 * 8;
-
- /* get used RSD counting period (10000 RSD packets used) */
- for (i = 0; i < 2; i++) {
- ret = af9013_read_reg(state, 0xd385 + i, &buf[i]);
- if (ret)
- goto error;
- }
- total_bit_count = (buf[1] << 8) + buf[0];
- total_bit_count = total_bit_count - abort_packet_count;
- total_bit_count = total_bit_count * 204 * 8;
-
- if (total_bit_count)
- state->ber = error_bit_count * 1000000000 / total_bit_count;
-
- state->ucblocks += abort_packet_count;
-
- deb_info("%s: err bits:%d total bits:%d abort count:%d\n", __func__,
- error_bit_count, total_bit_count, abort_packet_count);
-
- /* set BER counting range */
- ret = af9013_write_reg(state, 0xd385, 10000 & 0xff);
- if (ret)
- goto error;
- ret = af9013_write_reg(state, 0xd386, 10000 >> 8);
- if (ret)
- goto error;
- /* reset and start BER counter */
- ret = af9013_write_reg_bits(state, 0xd391, 4, 1, 1);
- if (ret)
- goto error;
-
-exit:
-error:
- return ret;
-}
-
-static int af9013_update_snr(struct dvb_frontend *fe)
-{
- struct af9013_state *state = fe->demodulator_priv;
- int ret;
- u8 buf[3], i, len;
- u32 quant = 0;
- struct snr_table *uninitialized_var(snr_table);
-
- /* check if quantizer ready (for snr) */
- ret = af9013_read_reg_bits(state, 0xd2e1, 3, 1, &buf[0]);
- if (ret)
- goto error;
- if (buf[0]) {
- /* quantizer ready - read it */
- for (i = 0; i < 3; i++) {
- ret = af9013_read_reg(state, 0xd2e3 + i, &buf[i]);
- if (ret)
- goto error;
- }
- quant = (buf[2] << 16) + (buf[1] << 8) + buf[0];
-
- /* read current constellation */
- ret = af9013_read_reg(state, 0xd3c1, &buf[0]);
- if (ret)
- goto error;
-
- switch ((buf[0] >> 6) & 3) {
- case 0:
- len = ARRAY_SIZE(qpsk_snr_table);
- snr_table = qpsk_snr_table;
- break;
- case 1:
- len = ARRAY_SIZE(qam16_snr_table);
- snr_table = qam16_snr_table;
- break;
- case 2:
- len = ARRAY_SIZE(qam64_snr_table);
- snr_table = qam64_snr_table;
- break;
- default:
- len = 0;
- break;
- }
-
- if (len) {
- for (i = 0; i < len; i++) {
- if (quant < snr_table[i].val) {
- state->snr = snr_table[i].snr * 10;
- break;
- }
- }
- }
-
- /* set quantizer super frame count */
- ret = af9013_write_reg(state, 0xd2e2, 1);
- if (ret)
- goto error;
-
- /* check quantizer availability */
- for (i = 0; i < 10; i++) {
- msleep(10);
- ret = af9013_read_reg_bits(state, 0xd2e6, 0, 1,
- &buf[0]);
- if (ret)
- goto error;
- if (!buf[0])
- break;
- }
-
- /* reset quantizer */
- ret = af9013_write_reg_bits(state, 0xd2e1, 3, 1, 1);
- if (ret)
- goto error;
- }
-
-error:
- return ret;
-}
-
-static int af9013_update_signal_strength(struct dvb_frontend *fe)
-{
- struct af9013_state *state = fe->demodulator_priv;
- int ret;
- u8 rf_gain, if_gain;
- int signal_strength;
-
- deb_info("%s\n", __func__);
-
- if (state->signal_strength_en) {
- ret = af9013_read_reg(state, 0xd07c, &rf_gain);
- if (ret)
- goto error;
- ret = af9013_read_reg(state, 0xd07d, &if_gain);
- if (ret)
- goto error;
- signal_strength = (0xffff / \
- (9 * (state->rf_50 + state->if_50) - \
- 11 * (state->rf_80 + state->if_80))) * \
- (10 * (rf_gain + if_gain) - \
- 11 * (state->rf_80 + state->if_80));
- if (signal_strength < 0)
- signal_strength = 0;
- else if (signal_strength > 0xffff)
- signal_strength = 0xffff;
-
- state->signal_strength = signal_strength;
- } else {
- state->signal_strength = 0;
- }
-
-error:
- return ret;
-}
-
-static int af9013_update_statistics(struct dvb_frontend *fe)
-{
- struct af9013_state *state = fe->demodulator_priv;
- int ret;
-
- if (time_before(jiffies, state->next_statistics_check))
- return 0;
-
- /* set minimum statistic update interval */
- state->next_statistics_check = jiffies + msecs_to_jiffies(1200);
-
- ret = af9013_update_signal_strength(fe);
- if (ret)
- goto error;
- ret = af9013_update_snr(fe);
- if (ret)
- goto error;
- ret = af9013_update_ber_unc(fe);
- if (ret)
- goto error;
-
-error:
- return ret;
-}
-
-static int af9013_get_tune_settings(struct dvb_frontend *fe,
- struct dvb_frontend_tune_settings *fesettings)
-{
- fesettings->min_delay_ms = 800;
- fesettings->step_size = 0;
- fesettings->max_drift = 0;
-
- return 0;
-}
-
-static int af9013_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
- struct af9013_state *state = fe->demodulator_priv;
- int ret = 0;
- u8 tmp;
- *status = 0;
-
- /* MPEG2 lock */
- ret = af9013_read_reg_bits(state, 0xd507, 6, 1, &tmp);
- if (ret)
- goto error;
- if (tmp)
- *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
- FE_HAS_SYNC | FE_HAS_LOCK;
-
- if (!*status) {
- /* TPS lock */
- ret = af9013_read_reg_bits(state, 0xd330, 3, 1, &tmp);
- if (ret)
- goto error;
- if (tmp)
- *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER |
- FE_HAS_VITERBI;
- }
-
- if (!*status) {
- /* CFO lock */
- ret = af9013_read_reg_bits(state, 0xd333, 7, 1, &tmp);
- if (ret)
- goto error;
- if (tmp)
- *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER;
- }
-
- if (!*status) {
- /* SFOE lock */
- ret = af9013_read_reg_bits(state, 0xd334, 6, 1, &tmp);
- if (ret)
- goto error;
- if (tmp)
- *status |= FE_HAS_SIGNAL | FE_HAS_CARRIER;
- }
-
- if (!*status) {
- /* AGC lock */
- ret = af9013_read_reg_bits(state, 0xd1a0, 6, 1, &tmp);
- if (ret)
- goto error;
- if (tmp)
- *status |= FE_HAS_SIGNAL;
- }
-
- ret = af9013_update_statistics(fe);
-
-error:
- return ret;
-}
-
-
-static int af9013_read_ber(struct dvb_frontend *fe, u32 *ber)
-{
- struct af9013_state *state = fe->demodulator_priv;
- int ret;
- ret = af9013_update_statistics(fe);
- *ber = state->ber;
- return ret;
-}
-
-static int af9013_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
-{
- struct af9013_state *state = fe->demodulator_priv;
- int ret;
- ret = af9013_update_statistics(fe);
- *strength = state->signal_strength;
- return ret;
-}
-
-static int af9013_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
- struct af9013_state *state = fe->demodulator_priv;
- int ret;
- ret = af9013_update_statistics(fe);
- *snr = state->snr;
- return ret;
-}
-
-static int af9013_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
-{
- struct af9013_state *state = fe->demodulator_priv;
- int ret;
- ret = af9013_update_statistics(fe);
- *ucblocks = state->ucblocks;
- return ret;
-}
-
-static int af9013_sleep(struct dvb_frontend *fe)
-{
- struct af9013_state *state = fe->demodulator_priv;
- int ret;
- deb_info("%s\n", __func__);
-
- ret = af9013_lock_led(state, 0);
- if (ret)
- goto error;
-
- ret = af9013_power_ctrl(state, 0);
-error:
- return ret;
-}
-
-static int af9013_init(struct dvb_frontend *fe)
-{
- struct af9013_state *state = fe->demodulator_priv;
- int ret, i, len;
- u8 tmp0, tmp1;
- struct regdesc *init;
- deb_info("%s\n", __func__);
-
- /* reset OFDM */
- ret = af9013_reset(state, 0);
- if (ret)
- goto error;
-
- /* power on */
- ret = af9013_power_ctrl(state, 1);
- if (ret)
- goto error;
-
- /* enable ADC */
- ret = af9013_write_reg(state, 0xd73a, 0xa4);
- if (ret)
- goto error;
-
- /* write API version to firmware */
- for (i = 0; i < sizeof(state->config.api_version); i++) {
- ret = af9013_write_reg(state, 0x9bf2 + i,
- state->config.api_version[i]);
- if (ret)
- goto error;
- }
-
- /* program ADC control */
- ret = af9013_set_adc_ctrl(state);
- if (ret)
- goto error;
-
- /* set I2C master clock */
- ret = af9013_write_reg(state, 0xd416, 0x14);
- if (ret)
- goto error;
-
- /* set 16 embx */
- ret = af9013_write_reg_bits(state, 0xd700, 1, 1, 1);
- if (ret)
- goto error;
-
- /* set no trigger */
- ret = af9013_write_reg_bits(state, 0xd700, 2, 1, 0);
- if (ret)
- goto error;
-
- /* set read-update bit for constellation */
- ret = af9013_write_reg_bits(state, 0xd371, 1, 1, 1);
- if (ret)
- goto error;
-
- /* enable FEC monitor */
- ret = af9013_write_reg_bits(state, 0xd392, 1, 1, 1);
- if (ret)
- goto error;
-
- /* load OFSM settings */
- deb_info("%s: load ofsm settings\n", __func__);
- len = ARRAY_SIZE(ofsm_init);
- init = ofsm_init;
- for (i = 0; i < len; i++) {
- ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos,
- init[i].len, init[i].val);
- if (ret)
- goto error;
- }
-
- /* load tuner specific settings */
- deb_info("%s: load tuner specific settings\n", __func__);
- switch (state->config.tuner) {
- case AF9013_TUNER_MXL5003D:
- len = ARRAY_SIZE(tuner_init_mxl5003d);
- init = tuner_init_mxl5003d;
- break;
- case AF9013_TUNER_MXL5005D:
- case AF9013_TUNER_MXL5005R:
- case AF9013_TUNER_MXL5007T:
- len = ARRAY_SIZE(tuner_init_mxl5005);
- init = tuner_init_mxl5005;
- break;
- case AF9013_TUNER_ENV77H11D5:
- len = ARRAY_SIZE(tuner_init_env77h11d5);
- init = tuner_init_env77h11d5;
- break;
- case AF9013_TUNER_MT2060:
- len = ARRAY_SIZE(tuner_init_mt2060);
- init = tuner_init_mt2060;
- break;
- case AF9013_TUNER_MC44S803:
- len = ARRAY_SIZE(tuner_init_mc44s803);
- init = tuner_init_mc44s803;
- break;
- case AF9013_TUNER_QT1010:
- case AF9013_TUNER_QT1010A:
- len = ARRAY_SIZE(tuner_init_qt1010);
- init = tuner_init_qt1010;
- break;
- case AF9013_TUNER_MT2060_2:
- len = ARRAY_SIZE(tuner_init_mt2060_2);
- init = tuner_init_mt2060_2;
- break;
- case AF9013_TUNER_TDA18271:
- case AF9013_TUNER_TDA18218:
- len = ARRAY_SIZE(tuner_init_tda18271);
- init = tuner_init_tda18271;
- break;
- case AF9013_TUNER_UNKNOWN:
- default:
- len = ARRAY_SIZE(tuner_init_unknown);
- init = tuner_init_unknown;
- break;
- }
-
- for (i = 0; i < len; i++) {
- ret = af9013_write_reg_bits(state, init[i].addr, init[i].pos,
- init[i].len, init[i].val);
- if (ret)
- goto error;
- }
-
- /* set TS mode */
- deb_info("%s: setting ts mode\n", __func__);
- tmp0 = 0; /* parallel mode */
- tmp1 = 0; /* serial mode */
- switch (state->config.output_mode) {
- case AF9013_OUTPUT_MODE_PARALLEL:
- tmp0 = 1;
- break;
- case AF9013_OUTPUT_MODE_SERIAL:
- tmp1 = 1;
- break;
- case AF9013_OUTPUT_MODE_USB:
- /* usb mode for AF9015 */
- default:
- break;
- }
- ret = af9013_write_reg_bits(state, 0xd500, 1, 1, tmp0); /* parallel */
- if (ret)
- goto error;
- ret = af9013_write_reg_bits(state, 0xd500, 2, 1, tmp1); /* serial */
- if (ret)
- goto error;
-
- /* enable lock led */
- ret = af9013_lock_led(state, 1);
- if (ret)
- goto error;
-
- /* read values needed for signal strength calculation */
- ret = af9013_read_reg_bits(state, 0x9bee, 0, 1,
- &state->signal_strength_en);
- if (ret)
- goto error;
-
- if (state->signal_strength_en) {
- ret = af9013_read_reg(state, 0x9bbd, &state->rf_50);
- if (ret)
- goto error;
- ret = af9013_read_reg(state, 0x9bd0, &state->rf_80);
- if (ret)
- goto error;
- ret = af9013_read_reg(state, 0x9be2, &state->if_50);
- if (ret)
- goto error;
- ret = af9013_read_reg(state, 0x9be4, &state->if_80);
- if (ret)
- goto error;
- }
-
-error:
- return ret;
-}
-
-static struct dvb_frontend_ops af9013_ops;
-
-static int af9013_download_firmware(struct af9013_state *state)
-{
- int i, len, packets, remainder, ret;
- const struct firmware *fw;
- u16 addr = 0x5100; /* firmware start address */
- u16 checksum = 0;
- u8 val;
- u8 fw_params[4];
- u8 *data;
- u8 *fw_file = AF9013_DEFAULT_FIRMWARE;
-
- msleep(100);
- /* check whether firmware is already running */
- ret = af9013_read_reg(state, 0x98be, &val);
- if (ret)
- goto error;
- else
- deb_info("%s: firmware status:%02x\n", __func__, val);
-
- if (val == 0x0c) /* fw is running, no need for download */
- goto exit;
-
- info("found a '%s' in cold state, will try to load a firmware",
- af9013_ops.info.name);
-
- /* request the firmware, this will block and timeout */
- ret = request_firmware(&fw, fw_file, state->i2c->dev.parent);
- if (ret) {
- err("did not find the firmware file. (%s) "
- "Please see linux/Documentation/dvb/ for more details" \
- " on firmware-problems. (%d)",
- fw_file, ret);
- goto error;
- }
-
- info("downloading firmware from file '%s'", fw_file);
-
- /* calc checksum */
- for (i = 0; i < fw->size; i++)
- checksum += fw->data[i];
-
- fw_params[0] = checksum >> 8;
- fw_params[1] = checksum & 0xff;
- fw_params[2] = fw->size >> 8;
- fw_params[3] = fw->size & 0xff;
-
- /* write fw checksum & size */
- ret = af9013_write_ofsm_regs(state, 0x50fc,
- fw_params, sizeof(fw_params));
- if (ret)
- goto error_release;
-
- #define FW_PACKET_MAX_DATA 16
-
- packets = fw->size / FW_PACKET_MAX_DATA;
- remainder = fw->size % FW_PACKET_MAX_DATA;
- len = FW_PACKET_MAX_DATA;
- for (i = 0; i <= packets; i++) {
- if (i == packets) /* set size of the last packet */
- len = remainder;
-
- data = (u8 *)(fw->data + i * FW_PACKET_MAX_DATA);
- ret = af9013_write_ofsm_regs(state, addr, data, len);
- addr += FW_PACKET_MAX_DATA;
-
- if (ret) {
- err("firmware download failed at %d with %d", i, ret);
- goto error_release;
- }
- }
-
- /* request boot firmware */
- ret = af9013_write_reg(state, 0xe205, 1);
- if (ret)
- goto error_release;
-
- for (i = 0; i < 15; i++) {
- msleep(100);
-
- /* check firmware status */
- ret = af9013_read_reg(state, 0x98be, &val);
- if (ret)
- goto error_release;
-
- deb_info("%s: firmware status:%02x\n", __func__, val);
-
- if (val == 0x0c || val == 0x04) /* success or fail */
- break;
- }
-
- if (val == 0x04) {
- err("firmware did not run");
- ret = -1;
- } else if (val != 0x0c) {
- err("firmware boot timeout");
- ret = -1;
- }
-
-error_release:
- release_firmware(fw);
-error:
-exit:
- if (!ret)
- info("found a '%s' in warm state.", af9013_ops.info.name);
- return ret;
-}
-
-static int af9013_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
-{
- int ret;
- struct af9013_state *state = fe->demodulator_priv;
- deb_info("%s: enable:%d\n", __func__, enable);
-
- if (state->config.output_mode == AF9013_OUTPUT_MODE_USB)
- ret = af9013_write_reg_bits(state, 0xd417, 3, 1, enable);
- else
- ret = af9013_write_reg_bits(state, 0xd607, 2, 1, enable);
-
- return ret;
-}
-
-static void af9013_release(struct dvb_frontend *fe)
-{
- struct af9013_state *state = fe->demodulator_priv;
- kfree(state);
-}
-
-static struct dvb_frontend_ops af9013_ops;
-
-struct dvb_frontend *af9013_attach(const struct af9013_config *config,
- struct i2c_adapter *i2c)
-{
- int ret;
- struct af9013_state *state = NULL;
- u8 buf[4], i;
-
- /* allocate memory for the internal state */
- state = kzalloc(sizeof(struct af9013_state), GFP_KERNEL);
- if (state == NULL)
- goto error;
-
- /* setup the state */
- state->i2c = i2c;
- memcpy(&state->config, config, sizeof(struct af9013_config));
-
- /* chip version */
- ret = af9013_read_reg_bits(state, 0xd733, 4, 4, &buf[2]);
- if (ret)
- goto error;
-
- /* ROM version */
- for (i = 0; i < 2; i++) {
- ret = af9013_read_reg(state, 0x116b + i, &buf[i]);
- if (ret)
- goto error;
- }
- deb_info("%s: chip version:%d ROM version:%d.%d\n", __func__,
- buf[2], buf[0], buf[1]);
-
- /* download firmware */
- if (state->config.output_mode != AF9013_OUTPUT_MODE_USB) {
- ret = af9013_download_firmware(state);
- if (ret)
- goto error;
- }
-
- /* firmware version */
- for (i = 0; i < 4; i++) {
- ret = af9013_read_reg(state, 0x5103 + i, &buf[i]);
- if (ret)
- goto error;
- }
- info("firmware version:%d.%d.%d.%d", buf[0], buf[1], buf[2], buf[3]);
-
- /* settings for mp2if */
- if (state->config.output_mode == AF9013_OUTPUT_MODE_USB) {
- /* AF9015 split PSB to 1.5k + 0.5k */
- ret = af9013_write_reg_bits(state, 0xd50b, 2, 1, 1);
- } else {
- /* AF9013 change the output bit to data7 */
- ret = af9013_write_reg_bits(state, 0xd500, 3, 1, 1);
- if (ret)
- goto error;
- /* AF9013 set mpeg to full speed */
- ret = af9013_write_reg_bits(state, 0xd502, 4, 1, 1);
- }
- if (ret)
- goto error;
- ret = af9013_write_reg_bits(state, 0xd520, 4, 1, 1);
- if (ret)
- goto error;
-
- /* set GPIOs */
- for (i = 0; i < sizeof(state->config.gpio); i++) {
- ret = af9013_set_gpio(state, i, state->config.gpio[i]);
- if (ret)
- goto error;
- }
-
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &af9013_ops,
- sizeof(struct dvb_frontend_ops));
- state->frontend.demodulator_priv = state;
-
- return &state->frontend;
-error:
- kfree(state);
- return NULL;
-}
-EXPORT_SYMBOL(af9013_attach);
-
-static struct dvb_frontend_ops af9013_ops = {
- .info = {
- .name = "Afatech AF9013 DVB-T",
- .type = FE_OFDM,
- .frequency_min = 174000000,
- .frequency_max = 862000000,
- .frequency_stepsize = 250000,
- .frequency_tolerance = 0,
- .caps =
- 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_HIERARCHY_AUTO |
- FE_CAN_RECOVER |
- FE_CAN_MUTE_TS
- },
-
- .release = af9013_release,
- .init = af9013_init,
- .sleep = af9013_sleep,
- .i2c_gate_ctrl = af9013_i2c_gate_ctrl,
-
- .set_frontend = af9013_set_frontend,
- .get_frontend = af9013_get_frontend,
-
- .get_tune_settings = af9013_get_tune_settings,
-
- .read_status = af9013_read_status,
- .read_ber = af9013_read_ber,
- .read_signal_strength = af9013_read_signal_strength,
- .read_snr = af9013_read_snr,
- .read_ucblocks = af9013_read_ucblocks,
-};
-
-module_param_named(debug, af9013_debug, int, 0644);
-MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
-
-MODULE_AUTHOR("Antti Palosaari <crope@iki.fi>");
-MODULE_DESCRIPTION("Afatech AF9013 DVB-T demodulator driver");
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 08:25:07 +0000