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Diffstat (limited to 'drivers/media/dvb/frontends/it913x-fe.c')
-rw-r--r--drivers/media/dvb/frontends/it913x-fe.c1045
1 files changed, 0 insertions, 1045 deletions
diff --git a/drivers/media/dvb/frontends/it913x-fe.c b/drivers/media/dvb/frontends/it913x-fe.c
deleted file mode 100644
index 708cbf197913..000000000000
--- a/drivers/media/dvb/frontends/it913x-fe.c
+++ /dev/null
@@ -1,1045 +0,0 @@
-/*
- * Driver for it913x-fe Frontend
- *
- * with support for on chip it9137 integral tuner
- *
- * Copyright (C) 2011 Malcolm Priestley (tvboxspy@gmail.com)
- * IT9137 Copyright (C) ITE Tech Inc.
- *
- * 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/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-
-#include "dvb_frontend.h"
-#include "it913x-fe.h"
-#include "it913x-fe-priv.h"
-
-static int it913x_debug;
-
-module_param_named(debug, it913x_debug, int, 0644);
-MODULE_PARM_DESC(debug, "set debugging level (1=info (or-able)).");
-
-#define dprintk(level, args...) do { \
- if (level & it913x_debug) \
- printk(KERN_DEBUG "it913x-fe: " args); \
-} while (0)
-
-#define deb_info(args...) dprintk(0x01, args)
-#define debug_data_snipet(level, name, p) \
- dprintk(level, name" (%02x%02x%02x%02x%02x%02x%02x%02x)", \
- *p, *(p+1), *(p+2), *(p+3), *(p+4), \
- *(p+5), *(p+6), *(p+7));
-#define info(format, arg...) \
- printk(KERN_INFO "it913x-fe: " format "\n" , ## arg)
-
-struct it913x_fe_state {
- struct dvb_frontend frontend;
- struct i2c_adapter *i2c_adap;
- struct ite_config *config;
- u8 i2c_addr;
- u32 frequency;
- fe_modulation_t constellation;
- fe_transmit_mode_t transmission_mode;
- u8 priority;
- u32 crystalFrequency;
- u32 adcFrequency;
- u8 tuner_type;
- struct adctable *table;
- fe_status_t it913x_status;
- u16 tun_xtal;
- u8 tun_fdiv;
- u8 tun_clk_mode;
- u32 tun_fn_min;
- u32 ucblocks;
-};
-
-static int it913x_read_reg(struct it913x_fe_state *state,
- u32 reg, u8 *data, u8 count)
-{
- int ret;
- u8 pro = PRO_DMOD; /* All reads from demodulator */
- u8 b[4];
- struct i2c_msg msg[2] = {
- { .addr = state->i2c_addr + (pro << 1), .flags = 0,
- .buf = b, .len = sizeof(b) },
- { .addr = state->i2c_addr + (pro << 1), .flags = I2C_M_RD,
- .buf = data, .len = count }
- };
- b[0] = (u8) reg >> 24;
- b[1] = (u8)(reg >> 16) & 0xff;
- b[2] = (u8)(reg >> 8) & 0xff;
- b[3] = (u8) reg & 0xff;
-
- ret = i2c_transfer(state->i2c_adap, msg, 2);
-
- return ret;
-}
-
-static int it913x_read_reg_u8(struct it913x_fe_state *state, u32 reg)
-{
- int ret;
- u8 b[1];
- ret = it913x_read_reg(state, reg, &b[0], sizeof(b));
- return (ret < 0) ? -ENODEV : b[0];
-}
-
-static int it913x_write(struct it913x_fe_state *state,
- u8 pro, u32 reg, u8 buf[], u8 count)
-{
- u8 b[256];
- struct i2c_msg msg[1] = {
- { .addr = state->i2c_addr + (pro << 1), .flags = 0,
- .buf = b, .len = count + 4 }
- };
- int ret;
-
- b[0] = (u8) reg >> 24;
- b[1] = (u8)(reg >> 16) & 0xff;
- b[2] = (u8)(reg >> 8) & 0xff;
- b[3] = (u8) reg & 0xff;
- memcpy(&b[4], buf, count);
-
- ret = i2c_transfer(state->i2c_adap, msg, 1);
-
- if (ret < 0)
- return -EIO;
-
- return 0;
-}
-
-static int it913x_write_reg(struct it913x_fe_state *state,
- u8 pro, u32 reg, u32 data)
-{
- int ret;
- u8 b[4];
- u8 s;
-
- b[0] = data >> 24;
- b[1] = (data >> 16) & 0xff;
- b[2] = (data >> 8) & 0xff;
- b[3] = data & 0xff;
- /* expand write as needed */
- if (data < 0x100)
- s = 3;
- else if (data < 0x1000)
- s = 2;
- else if (data < 0x100000)
- s = 1;
- else
- s = 0;
-
- ret = it913x_write(state, pro, reg, &b[s], sizeof(b) - s);
-
- return ret;
-}
-
-static int it913x_fe_script_loader(struct it913x_fe_state *state,
- struct it913xset *loadscript)
-{
- int ret, i;
- if (loadscript == NULL)
- return -EINVAL;
-
- for (i = 0; i < 1000; ++i) {
- if (loadscript[i].pro == 0xff)
- break;
- ret = it913x_write(state, loadscript[i].pro,
- loadscript[i].address,
- loadscript[i].reg, loadscript[i].count);
- if (ret < 0)
- return -ENODEV;
- }
- return 0;
-}
-
-static int it913x_init_tuner(struct it913x_fe_state *state)
-{
- int ret, i, reg;
- u8 val, nv_val;
- u8 nv[] = {48, 32, 24, 16, 12, 8, 6, 4, 2};
- u8 b[2];
-
- reg = it913x_read_reg_u8(state, 0xec86);
- switch (reg) {
- case 0:
- state->tun_clk_mode = reg;
- state->tun_xtal = 2000;
- state->tun_fdiv = 3;
- val = 16;
- break;
- case -ENODEV:
- return -ENODEV;
- case 1:
- default:
- state->tun_clk_mode = reg;
- state->tun_xtal = 640;
- state->tun_fdiv = 1;
- val = 6;
- break;
- }
-
- reg = it913x_read_reg_u8(state, 0xed03);
-
- if (reg < 0)
- return -ENODEV;
- else if (reg < sizeof(nv))
- nv_val = nv[reg];
- else
- nv_val = 2;
-
- for (i = 0; i < 50; i++) {
- ret = it913x_read_reg(state, 0xed23, &b[0], sizeof(b));
- reg = (b[1] << 8) + b[0];
- if (reg > 0)
- break;
- if (ret < 0)
- return -ENODEV;
- udelay(2000);
- }
- state->tun_fn_min = state->tun_xtal * reg;
- state->tun_fn_min /= (state->tun_fdiv * nv_val);
- deb_info("Tuner fn_min %d", state->tun_fn_min);
-
- if (state->config->chip_ver > 1)
- msleep(50);
- else {
- for (i = 0; i < 50; i++) {
- reg = it913x_read_reg_u8(state, 0xec82);
- if (reg > 0)
- break;
- if (reg < 0)
- return -ENODEV;
- udelay(2000);
- }
- }
-
- return it913x_write_reg(state, PRO_DMOD, 0xed81, val);
-}
-
-static int it9137_set_tuner(struct it913x_fe_state *state,
- u32 bandwidth, u32 frequency_m)
-{
- struct it913xset *set_tuner = set_it9137_template;
- int ret, reg;
- u32 frequency = frequency_m / 1000;
- u32 freq, temp_f, tmp;
- u16 iqik_m_cal;
- u16 n_div;
- u8 n;
- u8 l_band;
- u8 lna_band;
- u8 bw;
-
- if (state->config->firmware_ver == 1)
- set_tuner = set_it9135_template;
- else
- set_tuner = set_it9137_template;
-
- deb_info("Tuner Frequency %d Bandwidth %d", frequency, bandwidth);
-
- if (frequency >= 51000 && frequency <= 440000) {
- l_band = 0;
- lna_band = 0;
- } else if (frequency > 440000 && frequency <= 484000) {
- l_band = 1;
- lna_band = 1;
- } else if (frequency > 484000 && frequency <= 533000) {
- l_band = 1;
- lna_band = 2;
- } else if (frequency > 533000 && frequency <= 587000) {
- l_band = 1;
- lna_band = 3;
- } else if (frequency > 587000 && frequency <= 645000) {
- l_band = 1;
- lna_band = 4;
- } else if (frequency > 645000 && frequency <= 710000) {
- l_band = 1;
- lna_band = 5;
- } else if (frequency > 710000 && frequency <= 782000) {
- l_band = 1;
- lna_band = 6;
- } else if (frequency > 782000 && frequency <= 860000) {
- l_band = 1;
- lna_band = 7;
- } else if (frequency > 1450000 && frequency <= 1492000) {
- l_band = 1;
- lna_band = 0;
- } else if (frequency > 1660000 && frequency <= 1685000) {
- l_band = 1;
- lna_band = 1;
- } else
- return -EINVAL;
- set_tuner[0].reg[0] = lna_band;
-
- switch (bandwidth) {
- case 5000000:
- bw = 0;
- break;
- case 6000000:
- bw = 2;
- break;
- case 7000000:
- bw = 4;
- break;
- default:
- case 8000000:
- bw = 6;
- break;
- }
-
- set_tuner[1].reg[0] = bw;
- set_tuner[2].reg[0] = 0xa0 | (l_band << 3);
-
- if (frequency > 53000 && frequency <= 74000) {
- n_div = 48;
- n = 0;
- } else if (frequency > 74000 && frequency <= 111000) {
- n_div = 32;
- n = 1;
- } else if (frequency > 111000 && frequency <= 148000) {
- n_div = 24;
- n = 2;
- } else if (frequency > 148000 && frequency <= 222000) {
- n_div = 16;
- n = 3;
- } else if (frequency > 222000 && frequency <= 296000) {
- n_div = 12;
- n = 4;
- } else if (frequency > 296000 && frequency <= 445000) {
- n_div = 8;
- n = 5;
- } else if (frequency > 445000 && frequency <= state->tun_fn_min) {
- n_div = 6;
- n = 6;
- } else if (frequency > state->tun_fn_min && frequency <= 950000) {
- n_div = 4;
- n = 7;
- } else if (frequency > 1450000 && frequency <= 1680000) {
- n_div = 2;
- n = 0;
- } else
- return -EINVAL;
-
- reg = it913x_read_reg_u8(state, 0xed81);
- iqik_m_cal = (u16)reg * n_div;
-
- if (reg < 0x20) {
- if (state->tun_clk_mode == 0)
- iqik_m_cal = (iqik_m_cal * 9) >> 5;
- else
- iqik_m_cal >>= 1;
- } else {
- iqik_m_cal = 0x40 - iqik_m_cal;
- if (state->tun_clk_mode == 0)
- iqik_m_cal = ~((iqik_m_cal * 9) >> 5);
- else
- iqik_m_cal = ~(iqik_m_cal >> 1);
- }
-
- temp_f = frequency * (u32)n_div * (u32)state->tun_fdiv;
- freq = temp_f / state->tun_xtal;
- tmp = freq * state->tun_xtal;
-
- if ((temp_f - tmp) >= (state->tun_xtal >> 1))
- freq++;
-
- freq += (u32) n << 13;
- /* Frequency OMEGA_IQIK_M_CAL_MID*/
- temp_f = freq + (u32)iqik_m_cal;
-
- set_tuner[3].reg[0] = temp_f & 0xff;
- set_tuner[4].reg[0] = (temp_f >> 8) & 0xff;
-
- deb_info("High Frequency = %04x", temp_f);
-
- /* Lower frequency */
- set_tuner[5].reg[0] = freq & 0xff;
- set_tuner[6].reg[0] = (freq >> 8) & 0xff;
-
- deb_info("low Frequency = %04x", freq);
-
- ret = it913x_fe_script_loader(state, set_tuner);
-
- return (ret < 0) ? -ENODEV : 0;
-}
-
-static int it913x_fe_select_bw(struct it913x_fe_state *state,
- u32 bandwidth, u32 adcFrequency)
-{
- int ret, i;
- u8 buffer[256];
- u32 coeff[8];
- u16 bfsfcw_fftinx_ratio;
- u16 fftinx_bfsfcw_ratio;
- u8 count;
- u8 bw;
- u8 adcmultiplier;
-
- deb_info("Bandwidth %d Adc %d", bandwidth, adcFrequency);
-
- switch (bandwidth) {
- case 5000000:
- bw = 3;
- break;
- case 6000000:
- bw = 0;
- break;
- case 7000000:
- bw = 1;
- break;
- default:
- case 8000000:
- bw = 2;
- break;
- }
- ret = it913x_write_reg(state, PRO_DMOD, REG_BW, bw);
-
- if (state->table == NULL)
- return -EINVAL;
-
- /* In write order */
- coeff[0] = state->table[bw].coeff_1_2048;
- coeff[1] = state->table[bw].coeff_2_2k;
- coeff[2] = state->table[bw].coeff_1_8191;
- coeff[3] = state->table[bw].coeff_1_8192;
- coeff[4] = state->table[bw].coeff_1_8193;
- coeff[5] = state->table[bw].coeff_2_8k;
- coeff[6] = state->table[bw].coeff_1_4096;
- coeff[7] = state->table[bw].coeff_2_4k;
- bfsfcw_fftinx_ratio = state->table[bw].bfsfcw_fftinx_ratio;
- fftinx_bfsfcw_ratio = state->table[bw].fftinx_bfsfcw_ratio;
-
- /* ADC multiplier */
- ret = it913x_read_reg_u8(state, ADC_X_2);
- if (ret < 0)
- return -EINVAL;
-
- adcmultiplier = ret;
-
- count = 0;
-
- /* Build Buffer for COEFF Registers */
- for (i = 0; i < 8; i++) {
- if (adcmultiplier == 1)
- coeff[i] /= 2;
- buffer[count++] = (coeff[i] >> 24) & 0x3;
- buffer[count++] = (coeff[i] >> 16) & 0xff;
- buffer[count++] = (coeff[i] >> 8) & 0xff;
- buffer[count++] = coeff[i] & 0xff;
- }
-
- /* bfsfcw_fftinx_ratio register 0x21-0x22 */
- buffer[count++] = bfsfcw_fftinx_ratio & 0xff;
- buffer[count++] = (bfsfcw_fftinx_ratio >> 8) & 0xff;
- /* fftinx_bfsfcw_ratio register 0x23-0x24 */
- buffer[count++] = fftinx_bfsfcw_ratio & 0xff;
- buffer[count++] = (fftinx_bfsfcw_ratio >> 8) & 0xff;
- /* start at COEFF_1_2048 and write through to fftinx_bfsfcw_ratio*/
- ret = it913x_write(state, PRO_DMOD, COEFF_1_2048, buffer, count);
-
- for (i = 0; i < 42; i += 8)
- debug_data_snipet(0x1, "Buffer", &buffer[i]);
-
- return ret;
-}
-
-
-
-static int it913x_fe_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
- struct it913x_fe_state *state = fe->demodulator_priv;
- int ret, i;
- fe_status_t old_status = state->it913x_status;
- *status = 0;
-
- if (state->it913x_status == 0) {
- ret = it913x_read_reg_u8(state, EMPTY_CHANNEL_STATUS);
- if (ret == 0x1) {
- *status |= FE_HAS_SIGNAL;
- for (i = 0; i < 40; i++) {
- ret = it913x_read_reg_u8(state, MP2IF_SYNC_LK);
- if (ret == 0x1)
- break;
- msleep(25);
- }
- if (ret == 0x1)
- *status |= FE_HAS_CARRIER
- | FE_HAS_VITERBI
- | FE_HAS_SYNC;
- state->it913x_status = *status;
- }
- }
-
- if (state->it913x_status & FE_HAS_SYNC) {
- ret = it913x_read_reg_u8(state, TPSD_LOCK);
- if (ret == 0x1)
- *status |= FE_HAS_LOCK
- | state->it913x_status;
- else
- state->it913x_status = 0;
- if (old_status != state->it913x_status)
- ret = it913x_write_reg(state, PRO_LINK, GPIOH3_O, ret);
- }
-
- return 0;
-}
-
-/* FEC values based on fe_code_rate_t non supported values 0*/
-int it913x_qpsk_pval[] = {0, -93, -91, -90, 0, -89, -88};
-int it913x_16qam_pval[] = {0, -87, -85, -84, 0, -83, -82};
-int it913x_64qam_pval[] = {0, -82, -80, -78, 0, -77, -76};
-
-static int it913x_get_signal_strength(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct it913x_fe_state *state = fe->demodulator_priv;
- u8 code_rate;
- int ret, temp;
- u8 lna_gain_os;
-
- ret = it913x_read_reg_u8(state, VAR_P_INBAND);
- if (ret < 0)
- return ret;
-
- /* VHF/UHF gain offset */
- if (state->frequency < 300000000)
- lna_gain_os = 7;
- else
- lna_gain_os = 14;
-
- temp = (ret - 100) - lna_gain_os;
-
- if (state->priority == PRIORITY_HIGH)
- code_rate = p->code_rate_HP;
- else
- code_rate = p->code_rate_LP;
-
- if (code_rate >= ARRAY_SIZE(it913x_qpsk_pval))
- return -EINVAL;
-
- deb_info("Reg VAR_P_INBAND:%d Calc Offset Value:%d", ret, temp);
-
- /* Apply FEC offset values*/
- switch (p->modulation) {
- case QPSK:
- temp -= it913x_qpsk_pval[code_rate];
- break;
- case QAM_16:
- temp -= it913x_16qam_pval[code_rate];
- break;
- case QAM_64:
- temp -= it913x_64qam_pval[code_rate];
- break;
- default:
- return -EINVAL;
- }
-
- if (temp < -15)
- ret = 0;
- else if ((-15 <= temp) && (temp < 0))
- ret = (2 * (temp + 15)) / 3;
- else if ((0 <= temp) && (temp < 20))
- ret = 4 * temp + 10;
- else if ((20 <= temp) && (temp < 35))
- ret = (2 * (temp - 20)) / 3 + 90;
- else if (temp >= 35)
- ret = 100;
-
- deb_info("Signal Strength :%d", ret);
-
- return ret;
-}
-
-static int it913x_fe_read_signal_strength(struct dvb_frontend *fe,
- u16 *strength)
-{
- struct it913x_fe_state *state = fe->demodulator_priv;
- int ret = 0;
- if (state->config->read_slevel) {
- if (state->it913x_status & FE_HAS_SIGNAL)
- ret = it913x_read_reg_u8(state, SIGNAL_LEVEL);
- } else
- ret = it913x_get_signal_strength(fe);
-
- if (ret >= 0)
- *strength = (u16)((u32)ret * 0xffff / 0x64);
-
- return (ret < 0) ? -ENODEV : 0;
-}
-
-static int it913x_fe_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
- struct it913x_fe_state *state = fe->demodulator_priv;
- int ret;
- u8 reg[3];
- u32 snr_val, snr_min, snr_max;
- u32 temp;
-
- ret = it913x_read_reg(state, 0x2c, reg, sizeof(reg));
-
- snr_val = (u32)(reg[2] << 16) | (reg[1] << 8) | reg[0];
-
- ret |= it913x_read_reg(state, 0xf78b, reg, 1);
- if (reg[0])
- snr_val /= reg[0];
-
- if (state->transmission_mode == TRANSMISSION_MODE_2K)
- snr_val *= 4;
- else if (state->transmission_mode == TRANSMISSION_MODE_4K)
- snr_val *= 2;
-
- if (state->constellation == QPSK) {
- snr_min = 0xb4711;
- snr_max = 0x191451;
- } else if (state->constellation == QAM_16) {
- snr_min = 0x4f0d5;
- snr_max = 0xc7925;
- } else if (state->constellation == QAM_64) {
- snr_min = 0x256d0;
- snr_max = 0x626be;
- } else
- return -EINVAL;
-
- if (snr_val < snr_min)
- *snr = 0;
- else if (snr_val < snr_max) {
- temp = (snr_val - snr_min) >> 5;
- temp *= 0xffff;
- temp /= (snr_max - snr_min) >> 5;
- *snr = (u16)temp;
- } else
- *snr = 0xffff;
-
- return (ret < 0) ? -ENODEV : 0;
-}
-
-static int it913x_fe_read_ber(struct dvb_frontend *fe, u32 *ber)
-{
- struct it913x_fe_state *state = fe->demodulator_priv;
- u8 reg[5];
- /* Read Aborted Packets and Pre-Viterbi error rate 5 bytes */
- it913x_read_reg(state, RSD_ABORT_PKT_LSB, reg, sizeof(reg));
- state->ucblocks += (u32)(reg[1] << 8) | reg[0];
- *ber = (u32)(reg[4] << 16) | (reg[3] << 8) | reg[2];
- return 0;
-}
-
-static int it913x_fe_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
-{
- struct it913x_fe_state *state = fe->demodulator_priv;
- int ret;
- u8 reg[2];
- /* Aborted Packets */
- ret = it913x_read_reg(state, RSD_ABORT_PKT_LSB, reg, sizeof(reg));
- state->ucblocks += (u32)(reg[1] << 8) | reg[0];
- *ucblocks = state->ucblocks;
- return ret;
-}
-
-static int it913x_fe_get_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct it913x_fe_state *state = fe->demodulator_priv;
- u8 reg[8];
-
- it913x_read_reg(state, REG_TPSD_TX_MODE, reg, sizeof(reg));
-
- if (reg[3] < 3)
- p->modulation = fe_con[reg[3]];
-
- if (reg[0] < 3)
- p->transmission_mode = fe_mode[reg[0]];
-
- if (reg[1] < 4)
- p->guard_interval = fe_gi[reg[1]];
-
- if (reg[2] < 4)
- p->hierarchy = fe_hi[reg[2]];
-
- state->priority = reg[5];
-
- p->code_rate_HP = (reg[6] < 6) ? fe_code[reg[6]] : FEC_NONE;
- p->code_rate_LP = (reg[7] < 6) ? fe_code[reg[7]] : FEC_NONE;
-
- /* Update internal state to reflect the autodetected props */
- state->constellation = p->modulation;
- state->transmission_mode = p->transmission_mode;
-
- return 0;
-}
-
-static int it913x_fe_set_frontend(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- struct it913x_fe_state *state = fe->demodulator_priv;
- int i;
- u8 empty_ch, last_ch;
-
- state->it913x_status = 0;
-
- /* Set bw*/
- it913x_fe_select_bw(state, p->bandwidth_hz,
- state->adcFrequency);
-
- /* Training Mode Off */
- it913x_write_reg(state, PRO_LINK, TRAINING_MODE, 0x0);
-
- /* Clear Empty Channel */
- it913x_write_reg(state, PRO_DMOD, EMPTY_CHANNEL_STATUS, 0x0);
-
- /* Clear bits */
- it913x_write_reg(state, PRO_DMOD, MP2IF_SYNC_LK, 0x0);
- /* LED on */
- it913x_write_reg(state, PRO_LINK, GPIOH3_O, 0x1);
- /* Select Band*/
- if ((p->frequency >= 51000000) && (p->frequency <= 230000000))
- i = 0;
- else if ((p->frequency >= 350000000) && (p->frequency <= 900000000))
- i = 1;
- else if ((p->frequency >= 1450000000) && (p->frequency <= 1680000000))
- i = 2;
- else
- return -EOPNOTSUPP;
-
- it913x_write_reg(state, PRO_DMOD, FREE_BAND, i);
-
- deb_info("Frontend Set Tuner Type %02x", state->tuner_type);
- switch (state->tuner_type) {
- case IT9135_38:
- case IT9135_51:
- case IT9135_52:
- case IT9135_60:
- case IT9135_61:
- case IT9135_62:
- it9137_set_tuner(state,
- p->bandwidth_hz, p->frequency);
- break;
- default:
- if (fe->ops.tuner_ops.set_params) {
- fe->ops.tuner_ops.set_params(fe);
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
- }
- break;
- }
- /* LED off */
- it913x_write_reg(state, PRO_LINK, GPIOH3_O, 0x0);
- /* Trigger ofsm */
- it913x_write_reg(state, PRO_DMOD, TRIGGER_OFSM, 0x0);
- last_ch = 2;
- for (i = 0; i < 40; ++i) {
- empty_ch = it913x_read_reg_u8(state, EMPTY_CHANNEL_STATUS);
- if (last_ch == 1 && empty_ch == 1)
- break;
- if (last_ch == 2 && empty_ch == 2)
- return 0;
- last_ch = empty_ch;
- msleep(25);
- }
- for (i = 0; i < 40; ++i) {
- if (it913x_read_reg_u8(state, D_TPSD_LOCK) == 1)
- break;
- msleep(25);
- }
-
- state->frequency = p->frequency;
- return 0;
-}
-
-static int it913x_fe_suspend(struct it913x_fe_state *state)
-{
- int ret, i;
- u8 b;
-
- ret = it913x_write_reg(state, PRO_DMOD, SUSPEND_FLAG, 0x1);
-
- ret |= it913x_write_reg(state, PRO_DMOD, TRIGGER_OFSM, 0x0);
-
- for (i = 0; i < 128; i++) {
- ret = it913x_read_reg(state, SUSPEND_FLAG, &b, 1);
- if (ret < 0)
- return -ENODEV;
- if (b == 0)
- break;
-
- }
-
- ret |= it913x_write_reg(state, PRO_DMOD, AFE_MEM0, 0x8);
- /* Turn LED off */
- ret |= it913x_write_reg(state, PRO_LINK, GPIOH3_O, 0x0);
-
- ret |= it913x_fe_script_loader(state, it9137_tuner_off);
-
- return (ret < 0) ? -ENODEV : 0;
-}
-
-/* Power sequence */
-/* Power Up Tuner on -> Frontend suspend off -> Tuner clk on */
-/* Power Down Frontend suspend on -> Tuner clk off -> Tuner off */
-
-static int it913x_fe_sleep(struct dvb_frontend *fe)
-{
- struct it913x_fe_state *state = fe->demodulator_priv;
- return it913x_fe_suspend(state);
-}
-
-static u32 compute_div(u32 a, u32 b, u32 x)
-{
- u32 res = 0;
- u32 c = 0;
- u32 i = 0;
-
- if (a > b) {
- c = a / b;
- a = a - c * b;
- }
-
- for (i = 0; i < x; i++) {
- if (a >= b) {
- res += 1;
- a -= b;
- }
- a <<= 1;
- res <<= 1;
- }
-
- res = (c << x) + res;
-
- return res;
-}
-
-static int it913x_fe_start(struct it913x_fe_state *state)
-{
- struct it913xset *set_lna;
- struct it913xset *set_mode;
- int ret;
- u8 adf = (state->config->adf & 0xf);
- u32 adc, xtal;
- u8 b[4];
-
- if (state->config->chip_ver == 1)
- ret = it913x_init_tuner(state);
-
- info("ADF table value :%02x", adf);
-
- if (adf < 10) {
- state->crystalFrequency = fe_clockTable[adf].xtal ;
- state->table = fe_clockTable[adf].table;
- state->adcFrequency = state->table->adcFrequency;
-
- adc = compute_div(state->adcFrequency, 1000000ul, 19ul);
- xtal = compute_div(state->crystalFrequency, 1000000ul, 19ul);
-
- } else
- return -EINVAL;
-
- /* Set LED indicator on GPIOH3 */
- ret = it913x_write_reg(state, PRO_LINK, GPIOH3_EN, 0x1);
- ret |= it913x_write_reg(state, PRO_LINK, GPIOH3_ON, 0x1);
- ret |= it913x_write_reg(state, PRO_LINK, GPIOH3_O, 0x1);
-
- ret |= it913x_write_reg(state, PRO_LINK, 0xf641, state->tuner_type);
- ret |= it913x_write_reg(state, PRO_DMOD, 0xf5ca, 0x01);
- ret |= it913x_write_reg(state, PRO_DMOD, 0xf715, 0x01);
-
- b[0] = xtal & 0xff;
- b[1] = (xtal >> 8) & 0xff;
- b[2] = (xtal >> 16) & 0xff;
- b[3] = (xtal >> 24);
- ret |= it913x_write(state, PRO_DMOD, XTAL_CLK, b , 4);
-
- b[0] = adc & 0xff;
- b[1] = (adc >> 8) & 0xff;
- b[2] = (adc >> 16) & 0xff;
- ret |= it913x_write(state, PRO_DMOD, ADC_FREQ, b, 3);
-
- if (state->config->adc_x2)
- ret |= it913x_write_reg(state, PRO_DMOD, ADC_X_2, 0x01);
- b[0] = 0;
- b[1] = 0;
- b[2] = 0;
- ret |= it913x_write(state, PRO_DMOD, 0x0029, b, 3);
-
- info("Crystal Frequency :%d Adc Frequency :%d ADC X2: %02x",
- state->crystalFrequency, state->adcFrequency,
- state->config->adc_x2);
- deb_info("Xtal value :%04x Adc value :%04x", xtal, adc);
-
- if (ret < 0)
- return -ENODEV;
-
- /* v1 or v2 tuner script */
- if (state->config->chip_ver > 1)
- ret = it913x_fe_script_loader(state, it9135_v2);
- else
- ret = it913x_fe_script_loader(state, it9135_v1);
- if (ret < 0)
- return ret;
-
- /* LNA Scripts */
- switch (state->tuner_type) {
- case IT9135_51:
- set_lna = it9135_51;
- break;
- case IT9135_52:
- set_lna = it9135_52;
- break;
- case IT9135_60:
- set_lna = it9135_60;
- break;
- case IT9135_61:
- set_lna = it9135_61;
- break;
- case IT9135_62:
- set_lna = it9135_62;
- break;
- case IT9135_38:
- default:
- set_lna = it9135_38;
- }
- info("Tuner LNA type :%02x", state->tuner_type);
-
- ret = it913x_fe_script_loader(state, set_lna);
- if (ret < 0)
- return ret;
-
- if (state->config->chip_ver == 2) {
- ret = it913x_write_reg(state, PRO_DMOD, TRIGGER_OFSM, 0x1);
- ret |= it913x_write_reg(state, PRO_LINK, PADODPU, 0x0);
- ret |= it913x_write_reg(state, PRO_LINK, AGC_O_D, 0x0);
- ret |= it913x_init_tuner(state);
- }
- if (ret < 0)
- return -ENODEV;
-
- /* Always solo frontend */
- set_mode = set_solo_fe;
- ret |= it913x_fe_script_loader(state, set_mode);
-
- ret |= it913x_fe_suspend(state);
- return (ret < 0) ? -ENODEV : 0;
-}
-
-static int it913x_fe_init(struct dvb_frontend *fe)
-{
- struct it913x_fe_state *state = fe->demodulator_priv;
- int ret = 0;
- /* Power Up Tuner - common all versions */
- ret = it913x_write_reg(state, PRO_DMOD, 0xec40, 0x1);
-
- ret |= it913x_fe_script_loader(state, init_1);
-
- ret |= it913x_write_reg(state, PRO_DMOD, AFE_MEM0, 0x0);
-
- ret |= it913x_write_reg(state, PRO_DMOD, 0xfba8, 0x0);
-
- return (ret < 0) ? -ENODEV : 0;
-}
-
-static void it913x_fe_release(struct dvb_frontend *fe)
-{
- struct it913x_fe_state *state = fe->demodulator_priv;
- kfree(state);
-}
-
-static struct dvb_frontend_ops it913x_fe_ofdm_ops;
-
-struct dvb_frontend *it913x_fe_attach(struct i2c_adapter *i2c_adap,
- u8 i2c_addr, struct ite_config *config)
-{
- struct it913x_fe_state *state = NULL;
- int ret;
-
- /* allocate memory for the internal state */
- state = kzalloc(sizeof(struct it913x_fe_state), GFP_KERNEL);
- if (state == NULL)
- return NULL;
- if (config == NULL)
- goto error;
-
- state->i2c_adap = i2c_adap;
- state->i2c_addr = i2c_addr;
- state->config = config;
-
- switch (state->config->tuner_id_0) {
- case IT9135_51:
- case IT9135_52:
- case IT9135_60:
- case IT9135_61:
- case IT9135_62:
- state->tuner_type = state->config->tuner_id_0;
- break;
- default:
- case IT9135_38:
- state->tuner_type = IT9135_38;
- }
-
- ret = it913x_fe_start(state);
- if (ret < 0)
- goto error;
-
-
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &it913x_fe_ofdm_ops,
- sizeof(struct dvb_frontend_ops));
- state->frontend.demodulator_priv = state;
-
- return &state->frontend;
-error:
- kfree(state);
- return NULL;
-}
-EXPORT_SYMBOL(it913x_fe_attach);
-
-static struct dvb_frontend_ops it913x_fe_ofdm_ops = {
- .delsys = { SYS_DVBT },
- .info = {
- .name = "it913x-fe DVB-T",
- .frequency_min = 51000000,
- .frequency_max = 1680000000,
- .frequency_stepsize = 62500,
- .caps = 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_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
- FE_CAN_TRANSMISSION_MODE_AUTO |
- FE_CAN_GUARD_INTERVAL_AUTO |
- FE_CAN_HIERARCHY_AUTO,
- },
-
- .release = it913x_fe_release,
-
- .init = it913x_fe_init,
- .sleep = it913x_fe_sleep,
-
- .set_frontend = it913x_fe_set_frontend,
- .get_frontend = it913x_fe_get_frontend,
-
- .read_status = it913x_fe_read_status,
- .read_signal_strength = it913x_fe_read_signal_strength,
- .read_snr = it913x_fe_read_snr,
- .read_ber = it913x_fe_read_ber,
- .read_ucblocks = it913x_fe_read_ucblocks,
-};
-
-MODULE_DESCRIPTION("it913x Frontend and it9137 tuner");
-MODULE_AUTHOR("Malcolm Priestley tvboxspy@gmail.com");
-MODULE_VERSION("1.15");
-MODULE_LICENSE("GPL");