| /* |
| * stv0367.c |
| * |
| * Driver for ST STV0367 DVB-T & DVB-C demodulator IC. |
| * |
| * Copyright (C) ST Microelectronics. |
| * Copyright (C) 2010,2011 NetUP Inc. |
| * Copyright (C) 2010,2011 Igor M. Liplianin <liplianin@netup.ru> |
| * |
| * 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 <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/string.h> |
| #include <linux/slab.h> |
| #include <linux/i2c.h> |
| |
| #include <media/dvb_math.h> |
| |
| #include "stv0367.h" |
| #include "stv0367_defs.h" |
| #include "stv0367_regs.h" |
| #include "stv0367_priv.h" |
| |
| /* Max transfer size done by I2C transfer functions */ |
| #define MAX_XFER_SIZE 64 |
| |
| static int stvdebug; |
| module_param_named(debug, stvdebug, int, 0644); |
| |
| static int i2cdebug; |
| module_param_named(i2c_debug, i2cdebug, int, 0644); |
| |
| #define dprintk(args...) \ |
| do { \ |
| if (stvdebug) \ |
| printk(KERN_DEBUG args); \ |
| } while (0) |
| /* DVB-C */ |
| |
| enum active_demod_state { demod_none, demod_ter, demod_cab }; |
| |
| struct stv0367cab_state { |
| enum stv0367_cab_signal_type state; |
| u32 mclk; |
| u32 adc_clk; |
| s32 search_range; |
| s32 derot_offset; |
| /* results */ |
| int locked; /* channel found */ |
| u32 freq_khz; /* found frequency (in kHz) */ |
| u32 symbol_rate; /* found symbol rate (in Bds) */ |
| enum fe_spectral_inversion spect_inv; /* Spectrum Inversion */ |
| u32 qamfec_status_reg; /* status reg to poll for FEC Lock */ |
| }; |
| |
| struct stv0367ter_state { |
| /* DVB-T */ |
| enum stv0367_ter_signal_type state; |
| enum stv0367_ter_if_iq_mode if_iq_mode; |
| enum stv0367_ter_mode mode;/* mode 2K or 8K */ |
| enum fe_guard_interval guard; |
| enum stv0367_ter_hierarchy hierarchy; |
| u32 frequency; |
| enum fe_spectral_inversion sense; /* current search spectrum */ |
| u8 force; /* force mode/guard */ |
| u8 bw; /* channel width 6, 7 or 8 in MHz */ |
| u8 pBW; /* channel width used during previous lock */ |
| u32 pBER; |
| u32 pPER; |
| u32 ucblocks; |
| s8 echo_pos; /* echo position */ |
| u8 first_lock; |
| u8 unlock_counter; |
| u32 agc_val; |
| }; |
| |
| struct stv0367_state { |
| struct dvb_frontend fe; |
| struct i2c_adapter *i2c; |
| /* config settings */ |
| const struct stv0367_config *config; |
| u8 chip_id; |
| /* DVB-C */ |
| struct stv0367cab_state *cab_state; |
| /* DVB-T */ |
| struct stv0367ter_state *ter_state; |
| /* flags for operation control */ |
| u8 use_i2c_gatectrl; |
| u8 deftabs; |
| u8 reinit_on_setfrontend; |
| u8 auto_if_khz; |
| enum active_demod_state activedemod; |
| }; |
| |
| #define RF_LOOKUP_TABLE_SIZE 31 |
| #define RF_LOOKUP_TABLE2_SIZE 16 |
| /* RF Level (for RF AGC->AGC1) Lookup Table, depends on the board and tuner.*/ |
| static const s32 stv0367cab_RF_LookUp1[RF_LOOKUP_TABLE_SIZE][RF_LOOKUP_TABLE_SIZE] = { |
| {/*AGC1*/ |
| 48, 50, 51, 53, 54, 56, 57, 58, 60, 61, 62, 63, |
| 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, |
| 76, 77, 78, 80, 83, 85, 88, |
| }, {/*RF(dbm)*/ |
| 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, |
| 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 46, 47, |
| 49, 50, 52, 53, 54, 55, 56, |
| } |
| }; |
| /* RF Level (for IF AGC->AGC2) Lookup Table, depends on the board and tuner.*/ |
| static const s32 stv0367cab_RF_LookUp2[RF_LOOKUP_TABLE2_SIZE][RF_LOOKUP_TABLE2_SIZE] = { |
| {/*AGC2*/ |
| 28, 29, 31, 32, 34, 35, 36, 37, |
| 38, 39, 40, 41, 42, 43, 44, 45, |
| }, {/*RF(dbm)*/ |
| 57, 58, 59, 60, 61, 62, 63, 64, |
| 65, 66, 67, 68, 69, 70, 71, 72, |
| } |
| }; |
| |
| static |
| int stv0367_writeregs(struct stv0367_state *state, u16 reg, u8 *data, int len) |
| { |
| u8 buf[MAX_XFER_SIZE]; |
| struct i2c_msg msg = { |
| .addr = state->config->demod_address, |
| .flags = 0, |
| .buf = buf, |
| .len = len + 2 |
| }; |
| int ret; |
| |
| if (2 + len > sizeof(buf)) { |
| printk(KERN_WARNING |
| "%s: i2c wr reg=%04x: len=%d is too big!\n", |
| KBUILD_MODNAME, reg, len); |
| return -EINVAL; |
| } |
| |
| |
| buf[0] = MSB(reg); |
| buf[1] = LSB(reg); |
| memcpy(buf + 2, data, len); |
| |
| if (i2cdebug) |
| printk(KERN_DEBUG "%s: [%02x] %02x: %02x\n", __func__, |
| state->config->demod_address, reg, buf[2]); |
| |
| ret = i2c_transfer(state->i2c, &msg, 1); |
| if (ret != 1) |
| printk(KERN_ERR "%s: i2c write error! ([%02x] %02x: %02x)\n", |
| __func__, state->config->demod_address, reg, buf[2]); |
| |
| return (ret != 1) ? -EREMOTEIO : 0; |
| } |
| |
| static int stv0367_writereg(struct stv0367_state *state, u16 reg, u8 data) |
| { |
| u8 tmp = data; /* see gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 */ |
| |
| return stv0367_writeregs(state, reg, &tmp, 1); |
| } |
| |
| static u8 stv0367_readreg(struct stv0367_state *state, u16 reg) |
| { |
| u8 b0[] = { 0, 0 }; |
| u8 b1[] = { 0 }; |
| struct i2c_msg msg[] = { |
| { |
| .addr = state->config->demod_address, |
| .flags = 0, |
| .buf = b0, |
| .len = 2 |
| }, { |
| .addr = state->config->demod_address, |
| .flags = I2C_M_RD, |
| .buf = b1, |
| .len = 1 |
| } |
| }; |
| int ret; |
| |
| b0[0] = MSB(reg); |
| b0[1] = LSB(reg); |
| |
| ret = i2c_transfer(state->i2c, msg, 2); |
| if (ret != 2) |
| printk(KERN_ERR "%s: i2c read error ([%02x] %02x: %02x)\n", |
| __func__, state->config->demod_address, reg, b1[0]); |
| |
| if (i2cdebug) |
| printk(KERN_DEBUG "%s: [%02x] %02x: %02x\n", __func__, |
| state->config->demod_address, reg, b1[0]); |
| |
| return b1[0]; |
| } |
| |
| static void extract_mask_pos(u32 label, u8 *mask, u8 *pos) |
| { |
| u8 position = 0, i = 0; |
| |
| (*mask) = label & 0xff; |
| |
| while ((position == 0) && (i < 8)) { |
| position = ((*mask) >> i) & 0x01; |
| i++; |
| } |
| |
| (*pos) = (i - 1); |
| } |
| |
| static void stv0367_writebits(struct stv0367_state *state, u32 label, u8 val) |
| { |
| u8 reg, mask, pos; |
| |
| reg = stv0367_readreg(state, (label >> 16) & 0xffff); |
| extract_mask_pos(label, &mask, &pos); |
| |
| val = mask & (val << pos); |
| |
| reg = (reg & (~mask)) | val; |
| stv0367_writereg(state, (label >> 16) & 0xffff, reg); |
| |
| } |
| |
| static void stv0367_setbits(u8 *reg, u32 label, u8 val) |
| { |
| u8 mask, pos; |
| |
| extract_mask_pos(label, &mask, &pos); |
| |
| val = mask & (val << pos); |
| |
| (*reg) = ((*reg) & (~mask)) | val; |
| } |
| |
| static u8 stv0367_readbits(struct stv0367_state *state, u32 label) |
| { |
| u8 val = 0xff; |
| u8 mask, pos; |
| |
| extract_mask_pos(label, &mask, &pos); |
| |
| val = stv0367_readreg(state, label >> 16); |
| val = (val & mask) >> pos; |
| |
| return val; |
| } |
| |
| #if 0 /* Currently, unused */ |
| static u8 stv0367_getbits(u8 reg, u32 label) |
| { |
| u8 mask, pos; |
| |
| extract_mask_pos(label, &mask, &pos); |
| |
| return (reg & mask) >> pos; |
| } |
| #endif |
| |
| static void stv0367_write_table(struct stv0367_state *state, |
| const struct st_register *deftab) |
| { |
| int i = 0; |
| |
| while (1) { |
| if (!deftab[i].addr) |
| break; |
| stv0367_writereg(state, deftab[i].addr, deftab[i].value); |
| i++; |
| } |
| } |
| |
| static void stv0367_pll_setup(struct stv0367_state *state, |
| u32 icspeed, u32 xtal) |
| { |
| /* note on regs: R367TER_* and R367CAB_* defines each point to |
| * 0xf0d8, so just use R367TER_ for both cases |
| */ |
| |
| switch (icspeed) { |
| case STV0367_ICSPEED_58000: |
| switch (xtal) { |
| default: |
| case 27000000: |
| dprintk("STV0367 SetCLKgen for 58MHz IC and 27Mhz crystal\n"); |
| /* PLLMDIV: 27, PLLNDIV: 232 */ |
| stv0367_writereg(state, R367TER_PLLMDIV, 0x1b); |
| stv0367_writereg(state, R367TER_PLLNDIV, 0xe8); |
| break; |
| } |
| break; |
| default: |
| case STV0367_ICSPEED_53125: |
| switch (xtal) { |
| /* set internal freq to 53.125MHz */ |
| case 16000000: |
| stv0367_writereg(state, R367TER_PLLMDIV, 0x2); |
| stv0367_writereg(state, R367TER_PLLNDIV, 0x1b); |
| break; |
| case 25000000: |
| stv0367_writereg(state, R367TER_PLLMDIV, 0xa); |
| stv0367_writereg(state, R367TER_PLLNDIV, 0x55); |
| break; |
| default: |
| case 27000000: |
| dprintk("FE_STV0367TER_SetCLKgen for 27Mhz\n"); |
| stv0367_writereg(state, R367TER_PLLMDIV, 0x1); |
| stv0367_writereg(state, R367TER_PLLNDIV, 0x8); |
| break; |
| case 30000000: |
| stv0367_writereg(state, R367TER_PLLMDIV, 0xc); |
| stv0367_writereg(state, R367TER_PLLNDIV, 0x55); |
| break; |
| } |
| } |
| |
| stv0367_writereg(state, R367TER_PLLSETUP, 0x18); |
| } |
| |
| static int stv0367_get_if_khz(struct stv0367_state *state, u32 *ifkhz) |
| { |
| if (state->auto_if_khz && state->fe.ops.tuner_ops.get_if_frequency) { |
| state->fe.ops.tuner_ops.get_if_frequency(&state->fe, ifkhz); |
| *ifkhz = *ifkhz / 1000; /* hz -> khz */ |
| } else |
| *ifkhz = state->config->if_khz; |
| |
| return 0; |
| } |
| |
| static int stv0367ter_gate_ctrl(struct dvb_frontend *fe, int enable) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| u8 tmp = stv0367_readreg(state, R367TER_I2CRPT); |
| |
| dprintk("%s:\n", __func__); |
| |
| if (enable) { |
| stv0367_setbits(&tmp, F367TER_STOP_ENABLE, 0); |
| stv0367_setbits(&tmp, F367TER_I2CT_ON, 1); |
| } else { |
| stv0367_setbits(&tmp, F367TER_STOP_ENABLE, 1); |
| stv0367_setbits(&tmp, F367TER_I2CT_ON, 0); |
| } |
| |
| stv0367_writereg(state, R367TER_I2CRPT, tmp); |
| |
| return 0; |
| } |
| |
| static u32 stv0367_get_tuner_freq(struct dvb_frontend *fe) |
| { |
| struct dvb_frontend_ops *frontend_ops = &fe->ops; |
| struct dvb_tuner_ops *tuner_ops = &frontend_ops->tuner_ops; |
| u32 freq = 0; |
| int err = 0; |
| |
| dprintk("%s:\n", __func__); |
| |
| if (tuner_ops->get_frequency) { |
| err = tuner_ops->get_frequency(fe, &freq); |
| if (err < 0) { |
| printk(KERN_ERR "%s: Invalid parameter\n", __func__); |
| return err; |
| } |
| |
| dprintk("%s: frequency=%d\n", __func__, freq); |
| |
| } else |
| return -1; |
| |
| return freq; |
| } |
| |
| static u16 CellsCoeffs_8MHz_367cofdm[3][6][5] = { |
| { |
| {0x10EF, 0xE205, 0x10EF, 0xCE49, 0x6DA7}, /* CELL 1 COEFFS 27M*/ |
| {0x2151, 0xc557, 0x2151, 0xc705, 0x6f93}, /* CELL 2 COEFFS */ |
| {0x2503, 0xc000, 0x2503, 0xc375, 0x7194}, /* CELL 3 COEFFS */ |
| {0x20E9, 0xca94, 0x20e9, 0xc153, 0x7194}, /* CELL 4 COEFFS */ |
| {0x06EF, 0xF852, 0x06EF, 0xC057, 0x7207}, /* CELL 5 COEFFS */ |
| {0x0000, 0x0ECC, 0x0ECC, 0x0000, 0x3647} /* CELL 6 COEFFS */ |
| }, { |
| {0x10A0, 0xE2AF, 0x10A1, 0xCE76, 0x6D6D}, /* CELL 1 COEFFS 25M*/ |
| {0x20DC, 0xC676, 0x20D9, 0xC80A, 0x6F29}, |
| {0x2532, 0xC000, 0x251D, 0xC391, 0x706F}, |
| {0x1F7A, 0xCD2B, 0x2032, 0xC15E, 0x711F}, |
| {0x0698, 0xFA5E, 0x0568, 0xC059, 0x7193}, |
| {0x0000, 0x0918, 0x149C, 0x0000, 0x3642} /* CELL 6 COEFFS */ |
| }, { |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, /* 30M */ |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000} |
| } |
| }; |
| |
| static u16 CellsCoeffs_7MHz_367cofdm[3][6][5] = { |
| { |
| {0x12CA, 0xDDAF, 0x12CA, 0xCCEB, 0x6FB1}, /* CELL 1 COEFFS 27M*/ |
| {0x2329, 0xC000, 0x2329, 0xC6B0, 0x725F}, /* CELL 2 COEFFS */ |
| {0x2394, 0xC000, 0x2394, 0xC2C7, 0x7410}, /* CELL 3 COEFFS */ |
| {0x251C, 0xC000, 0x251C, 0xC103, 0x74D9}, /* CELL 4 COEFFS */ |
| {0x0804, 0xF546, 0x0804, 0xC040, 0x7544}, /* CELL 5 COEFFS */ |
| {0x0000, 0x0CD9, 0x0CD9, 0x0000, 0x370A} /* CELL 6 COEFFS */ |
| }, { |
| {0x1285, 0xDE47, 0x1285, 0xCD17, 0x6F76}, /*25M*/ |
| {0x234C, 0xC000, 0x2348, 0xC6DA, 0x7206}, |
| {0x23B4, 0xC000, 0x23AC, 0xC2DB, 0x73B3}, |
| {0x253D, 0xC000, 0x25B6, 0xC10B, 0x747F}, |
| {0x0721, 0xF79C, 0x065F, 0xC041, 0x74EB}, |
| {0x0000, 0x08FA, 0x1162, 0x0000, 0x36FF} |
| }, { |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, /* 30M */ |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000} |
| } |
| }; |
| |
| static u16 CellsCoeffs_6MHz_367cofdm[3][6][5] = { |
| { |
| {0x1699, 0xD5B8, 0x1699, 0xCBC3, 0x713B}, /* CELL 1 COEFFS 27M*/ |
| {0x2245, 0xC000, 0x2245, 0xC568, 0x74D5}, /* CELL 2 COEFFS */ |
| {0x227F, 0xC000, 0x227F, 0xC1FC, 0x76C6}, /* CELL 3 COEFFS */ |
| {0x235E, 0xC000, 0x235E, 0xC0A7, 0x778A}, /* CELL 4 COEFFS */ |
| {0x0ECB, 0xEA0B, 0x0ECB, 0xC027, 0x77DD}, /* CELL 5 COEFFS */ |
| {0x0000, 0x0B68, 0x0B68, 0x0000, 0xC89A}, /* CELL 6 COEFFS */ |
| }, { |
| {0x1655, 0xD64E, 0x1658, 0xCBEF, 0x70FE}, /*25M*/ |
| {0x225E, 0xC000, 0x2256, 0xC589, 0x7489}, |
| {0x2293, 0xC000, 0x2295, 0xC209, 0x767E}, |
| {0x2377, 0xC000, 0x23AA, 0xC0AB, 0x7746}, |
| {0x0DC7, 0xEBC8, 0x0D07, 0xC027, 0x7799}, |
| {0x0000, 0x0888, 0x0E9C, 0x0000, 0x3757} |
| |
| }, { |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, /* 30M */ |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000}, |
| {0x0000, 0x0000, 0x0000, 0x0000, 0x0000} |
| } |
| }; |
| |
| static u32 stv0367ter_get_mclk(struct stv0367_state *state, u32 ExtClk_Hz) |
| { |
| u32 mclk_Hz = 0; /* master clock frequency (Hz) */ |
| u32 m, n, p; |
| |
| dprintk("%s:\n", __func__); |
| |
| if (stv0367_readbits(state, F367TER_BYPASS_PLLXN) == 0) { |
| n = (u32)stv0367_readbits(state, F367TER_PLL_NDIV); |
| if (n == 0) |
| n = n + 1; |
| |
| m = (u32)stv0367_readbits(state, F367TER_PLL_MDIV); |
| if (m == 0) |
| m = m + 1; |
| |
| p = (u32)stv0367_readbits(state, F367TER_PLL_PDIV); |
| if (p > 5) |
| p = 5; |
| |
| mclk_Hz = ((ExtClk_Hz / 2) * n) / (m * (1 << p)); |
| |
| dprintk("N=%d M=%d P=%d mclk_Hz=%d ExtClk_Hz=%d\n", |
| n, m, p, mclk_Hz, ExtClk_Hz); |
| } else |
| mclk_Hz = ExtClk_Hz; |
| |
| dprintk("%s: mclk_Hz=%d\n", __func__, mclk_Hz); |
| |
| return mclk_Hz; |
| } |
| |
| static int stv0367ter_filt_coeff_init(struct stv0367_state *state, |
| u16 CellsCoeffs[3][6][5], u32 DemodXtal) |
| { |
| int i, j, k, freq; |
| |
| dprintk("%s:\n", __func__); |
| |
| freq = stv0367ter_get_mclk(state, DemodXtal); |
| |
| if (freq == 53125000) |
| k = 1; /* equivalent to Xtal 25M on 362*/ |
| else if (freq == 54000000) |
| k = 0; /* equivalent to Xtal 27M on 362*/ |
| else if (freq == 52500000) |
| k = 2; /* equivalent to Xtal 30M on 362*/ |
| else |
| return 0; |
| |
| for (i = 1; i <= 6; i++) { |
| stv0367_writebits(state, F367TER_IIR_CELL_NB, i - 1); |
| |
| for (j = 1; j <= 5; j++) { |
| stv0367_writereg(state, |
| (R367TER_IIRCX_COEFF1_MSB + 2 * (j - 1)), |
| MSB(CellsCoeffs[k][i-1][j-1])); |
| stv0367_writereg(state, |
| (R367TER_IIRCX_COEFF1_LSB + 2 * (j - 1)), |
| LSB(CellsCoeffs[k][i-1][j-1])); |
| } |
| } |
| |
| return 1; |
| |
| } |
| |
| static void stv0367ter_agc_iir_lock_detect_set(struct stv0367_state *state) |
| { |
| dprintk("%s:\n", __func__); |
| |
| stv0367_writebits(state, F367TER_LOCK_DETECT_LSB, 0x00); |
| |
| /* Lock detect 1 */ |
| stv0367_writebits(state, F367TER_LOCK_DETECT_CHOICE, 0x00); |
| stv0367_writebits(state, F367TER_LOCK_DETECT_MSB, 0x06); |
| stv0367_writebits(state, F367TER_AUT_AGC_TARGET_LSB, 0x04); |
| |
| /* Lock detect 2 */ |
| stv0367_writebits(state, F367TER_LOCK_DETECT_CHOICE, 0x01); |
| stv0367_writebits(state, F367TER_LOCK_DETECT_MSB, 0x06); |
| stv0367_writebits(state, F367TER_AUT_AGC_TARGET_LSB, 0x04); |
| |
| /* Lock detect 3 */ |
| stv0367_writebits(state, F367TER_LOCK_DETECT_CHOICE, 0x02); |
| stv0367_writebits(state, F367TER_LOCK_DETECT_MSB, 0x01); |
| stv0367_writebits(state, F367TER_AUT_AGC_TARGET_LSB, 0x00); |
| |
| /* Lock detect 4 */ |
| stv0367_writebits(state, F367TER_LOCK_DETECT_CHOICE, 0x03); |
| stv0367_writebits(state, F367TER_LOCK_DETECT_MSB, 0x01); |
| stv0367_writebits(state, F367TER_AUT_AGC_TARGET_LSB, 0x00); |
| |
| } |
| |
| static int stv0367_iir_filt_init(struct stv0367_state *state, u8 Bandwidth, |
| u32 DemodXtalValue) |
| { |
| dprintk("%s:\n", __func__); |
| |
| stv0367_writebits(state, F367TER_NRST_IIR, 0); |
| |
| switch (Bandwidth) { |
| case 6: |
| if (!stv0367ter_filt_coeff_init(state, |
| CellsCoeffs_6MHz_367cofdm, |
| DemodXtalValue)) |
| return 0; |
| break; |
| case 7: |
| if (!stv0367ter_filt_coeff_init(state, |
| CellsCoeffs_7MHz_367cofdm, |
| DemodXtalValue)) |
| return 0; |
| break; |
| case 8: |
| if (!stv0367ter_filt_coeff_init(state, |
| CellsCoeffs_8MHz_367cofdm, |
| DemodXtalValue)) |
| return 0; |
| break; |
| default: |
| return 0; |
| } |
| |
| stv0367_writebits(state, F367TER_NRST_IIR, 1); |
| |
| return 1; |
| } |
| |
| static void stv0367ter_agc_iir_rst(struct stv0367_state *state) |
| { |
| |
| u8 com_n; |
| |
| dprintk("%s:\n", __func__); |
| |
| com_n = stv0367_readbits(state, F367TER_COM_N); |
| |
| stv0367_writebits(state, F367TER_COM_N, 0x07); |
| |
| stv0367_writebits(state, F367TER_COM_SOFT_RSTN, 0x00); |
| stv0367_writebits(state, F367TER_COM_AGC_ON, 0x00); |
| |
| stv0367_writebits(state, F367TER_COM_SOFT_RSTN, 0x01); |
| stv0367_writebits(state, F367TER_COM_AGC_ON, 0x01); |
| |
| stv0367_writebits(state, F367TER_COM_N, com_n); |
| |
| } |
| |
| static int stv0367ter_duration(s32 mode, int tempo1, int tempo2, int tempo3) |
| { |
| int local_tempo = 0; |
| switch (mode) { |
| case 0: |
| local_tempo = tempo1; |
| break; |
| case 1: |
| local_tempo = tempo2; |
| break ; |
| |
| case 2: |
| local_tempo = tempo3; |
| break; |
| |
| default: |
| break; |
| } |
| /* msleep(local_tempo); */ |
| return local_tempo; |
| } |
| |
| static enum |
| stv0367_ter_signal_type stv0367ter_check_syr(struct stv0367_state *state) |
| { |
| int wd = 100; |
| unsigned short int SYR_var; |
| s32 SYRStatus; |
| |
| dprintk("%s:\n", __func__); |
| |
| SYR_var = stv0367_readbits(state, F367TER_SYR_LOCK); |
| |
| while ((!SYR_var) && (wd > 0)) { |
| usleep_range(2000, 3000); |
| wd -= 2; |
| SYR_var = stv0367_readbits(state, F367TER_SYR_LOCK); |
| } |
| |
| if (!SYR_var) |
| SYRStatus = FE_TER_NOSYMBOL; |
| else |
| SYRStatus = FE_TER_SYMBOLOK; |
| |
| dprintk("stv0367ter_check_syr SYRStatus %s\n", |
| SYR_var == 0 ? "No Symbol" : "OK"); |
| |
| return SYRStatus; |
| } |
| |
| static enum |
| stv0367_ter_signal_type stv0367ter_check_cpamp(struct stv0367_state *state, |
| s32 FFTmode) |
| { |
| |
| s32 CPAMPvalue = 0, CPAMPStatus, CPAMPMin; |
| int wd = 0; |
| |
| dprintk("%s:\n", __func__); |
| |
| switch (FFTmode) { |
| case 0: /*2k mode*/ |
| CPAMPMin = 20; |
| wd = 10; |
| break; |
| case 1: /*8k mode*/ |
| CPAMPMin = 80; |
| wd = 55; |
| break; |
| case 2: /*4k mode*/ |
| CPAMPMin = 40; |
| wd = 30; |
| break; |
| default: |
| CPAMPMin = 0xffff; /*drives to NOCPAMP */ |
| break; |
| } |
| |
| dprintk("%s: CPAMPMin=%d wd=%d\n", __func__, CPAMPMin, wd); |
| |
| CPAMPvalue = stv0367_readbits(state, F367TER_PPM_CPAMP_DIRECT); |
| while ((CPAMPvalue < CPAMPMin) && (wd > 0)) { |
| usleep_range(1000, 2000); |
| wd -= 1; |
| CPAMPvalue = stv0367_readbits(state, F367TER_PPM_CPAMP_DIRECT); |
| /*dprintk("CPAMPvalue= %d at wd=%d\n",CPAMPvalue,wd); */ |
| } |
| dprintk("******last CPAMPvalue= %d at wd=%d\n", CPAMPvalue, wd); |
| if (CPAMPvalue < CPAMPMin) { |
| CPAMPStatus = FE_TER_NOCPAMP; |
| dprintk("%s: CPAMP failed\n", __func__); |
| } else { |
| dprintk("%s: CPAMP OK !\n", __func__); |
| CPAMPStatus = FE_TER_CPAMPOK; |
| } |
| |
| return CPAMPStatus; |
| } |
| |
| static enum stv0367_ter_signal_type |
| stv0367ter_lock_algo(struct stv0367_state *state) |
| { |
| enum stv0367_ter_signal_type ret_flag; |
| short int wd, tempo; |
| u8 try, u_var1 = 0, u_var2 = 0, u_var3 = 0, u_var4 = 0, mode, guard; |
| u8 tmp, tmp2; |
| |
| dprintk("%s:\n", __func__); |
| |
| if (state == NULL) |
| return FE_TER_SWNOK; |
| |
| try = 0; |
| do { |
| ret_flag = FE_TER_LOCKOK; |
| |
| stv0367_writebits(state, F367TER_CORE_ACTIVE, 0); |
| |
| if (state->config->if_iq_mode != 0) |
| stv0367_writebits(state, F367TER_COM_N, 0x07); |
| |
| stv0367_writebits(state, F367TER_GUARD, 3);/* suggest 2k 1/4 */ |
| stv0367_writebits(state, F367TER_MODE, 0); |
| stv0367_writebits(state, F367TER_SYR_TR_DIS, 0); |
| usleep_range(5000, 10000); |
| |
| stv0367_writebits(state, F367TER_CORE_ACTIVE, 1); |
| |
| |
| if (stv0367ter_check_syr(state) == FE_TER_NOSYMBOL) |
| return FE_TER_NOSYMBOL; |
| else { /* |
| if chip locked on wrong mode first try, |
| it must lock correctly second try */ |
| mode = stv0367_readbits(state, F367TER_SYR_MODE); |
| if (stv0367ter_check_cpamp(state, mode) == |
| FE_TER_NOCPAMP) { |
| if (try == 0) |
| ret_flag = FE_TER_NOCPAMP; |
| |
| } |
| } |
| |
| try++; |
| } while ((try < 10) && (ret_flag != FE_TER_LOCKOK)); |
| |
| tmp = stv0367_readreg(state, R367TER_SYR_STAT); |
| tmp2 = stv0367_readreg(state, R367TER_STATUS); |
| dprintk("state=%p\n", state); |
| dprintk("LOCK OK! mode=%d SYR_STAT=0x%x R367TER_STATUS=0x%x\n", |
| mode, tmp, tmp2); |
| |
| tmp = stv0367_readreg(state, R367TER_PRVIT); |
| tmp2 = stv0367_readreg(state, R367TER_I2CRPT); |
| dprintk("PRVIT=0x%x I2CRPT=0x%x\n", tmp, tmp2); |
| |
| tmp = stv0367_readreg(state, R367TER_GAIN_SRC1); |
| dprintk("GAIN_SRC1=0x%x\n", tmp); |
| |
| if ((mode != 0) && (mode != 1) && (mode != 2)) |
| return FE_TER_SWNOK; |
| |
| /*guard=stv0367_readbits(state,F367TER_SYR_GUARD); */ |
| |
| /*suppress EPQ auto for SYR_GARD 1/16 or 1/32 |
| and set channel predictor in automatic */ |
| #if 0 |
| switch (guard) { |
| |
| case 0: |
| case 1: |
| stv0367_writebits(state, F367TER_AUTO_LE_EN, 0); |
| stv0367_writereg(state, R367TER_CHC_CTL, 0x01); |
| break; |
| case 2: |
| case 3: |
| stv0367_writebits(state, F367TER_AUTO_LE_EN, 1); |
| stv0367_writereg(state, R367TER_CHC_CTL, 0x11); |
| break; |
| |
| default: |
| return FE_TER_SWNOK; |
| } |
| #endif |
| |
| /*reset fec an reedsolo FOR 367 only*/ |
| stv0367_writebits(state, F367TER_RST_SFEC, 1); |
| stv0367_writebits(state, F367TER_RST_REEDSOLO, 1); |
| usleep_range(1000, 2000); |
| stv0367_writebits(state, F367TER_RST_SFEC, 0); |
| stv0367_writebits(state, F367TER_RST_REEDSOLO, 0); |
| |
| u_var1 = stv0367_readbits(state, F367TER_LK); |
| u_var2 = stv0367_readbits(state, F367TER_PRF); |
| u_var3 = stv0367_readbits(state, F367TER_TPS_LOCK); |
| /* u_var4=stv0367_readbits(state,F367TER_TSFIFO_LINEOK); */ |
| |
| wd = stv0367ter_duration(mode, 125, 500, 250); |
| tempo = stv0367ter_duration(mode, 4, 16, 8); |
| |
| /*while ( ((!u_var1)||(!u_var2)||(!u_var3)||(!u_var4)) && (wd>=0)) */ |
| while (((!u_var1) || (!u_var2) || (!u_var3)) && (wd >= 0)) { |
| usleep_range(1000 * tempo, 1000 * (tempo + 1)); |
| wd -= tempo; |
| u_var1 = stv0367_readbits(state, F367TER_LK); |
| u_var2 = stv0367_readbits(state, F367TER_PRF); |
| u_var3 = stv0367_readbits(state, F367TER_TPS_LOCK); |
| /*u_var4=stv0367_readbits(state, F367TER_TSFIFO_LINEOK); */ |
| } |
| |
| if (!u_var1) |
| return FE_TER_NOLOCK; |
| |
| |
| if (!u_var2) |
| return FE_TER_NOPRFOUND; |
| |
| if (!u_var3) |
| return FE_TER_NOTPS; |
| |
| guard = stv0367_readbits(state, F367TER_SYR_GUARD); |
| stv0367_writereg(state, R367TER_CHC_CTL, 0x11); |
| switch (guard) { |
| case 0: |
| case 1: |
| stv0367_writebits(state, F367TER_AUTO_LE_EN, 0); |
| /*stv0367_writereg(state,R367TER_CHC_CTL, 0x1);*/ |
| stv0367_writebits(state, F367TER_SYR_FILTER, 0); |
| break; |
| case 2: |
| case 3: |
| stv0367_writebits(state, F367TER_AUTO_LE_EN, 1); |
| /*stv0367_writereg(state,R367TER_CHC_CTL, 0x11);*/ |
| stv0367_writebits(state, F367TER_SYR_FILTER, 1); |
| break; |
| |
| default: |
| return FE_TER_SWNOK; |
| } |
| |
| /* apply Sfec workaround if 8K 64QAM CR!=1/2*/ |
| if ((stv0367_readbits(state, F367TER_TPS_CONST) == 2) && |
| (mode == 1) && |
| (stv0367_readbits(state, F367TER_TPS_HPCODE) != 0)) { |
| stv0367_writereg(state, R367TER_SFDLYSETH, 0xc0); |
| stv0367_writereg(state, R367TER_SFDLYSETM, 0x60); |
| stv0367_writereg(state, R367TER_SFDLYSETL, 0x0); |
| } else |
| stv0367_writereg(state, R367TER_SFDLYSETH, 0x0); |
| |
| wd = stv0367ter_duration(mode, 125, 500, 250); |
| u_var4 = stv0367_readbits(state, F367TER_TSFIFO_LINEOK); |
| |
| while ((!u_var4) && (wd >= 0)) { |
| usleep_range(1000 * tempo, 1000 * (tempo + 1)); |
| wd -= tempo; |
| u_var4 = stv0367_readbits(state, F367TER_TSFIFO_LINEOK); |
| } |
| |
| if (!u_var4) |
| return FE_TER_NOLOCK; |
| |
| /* for 367 leave COM_N at 0x7 for IQ_mode*/ |
| /*if(ter_state->if_iq_mode!=FE_TER_NORMAL_IF_TUNER) { |
| tempo=0; |
| while ((stv0367_readbits(state,F367TER_COM_USEGAINTRK)!=1) && |
| (stv0367_readbits(state,F367TER_COM_AGCLOCK)!=1)&&(tempo<100)) { |
| ChipWaitOrAbort(state,1); |
| tempo+=1; |
| } |
| |
| stv0367_writebits(state,F367TER_COM_N,0x17); |
| } */ |
| |
| stv0367_writebits(state, F367TER_SYR_TR_DIS, 1); |
| |
| dprintk("FE_TER_LOCKOK !!!\n"); |
| |
| return FE_TER_LOCKOK; |
| |
| } |
| |
| static void stv0367ter_set_ts_mode(struct stv0367_state *state, |
| enum stv0367_ts_mode PathTS) |
| { |
| |
| dprintk("%s:\n", __func__); |
| |
| if (state == NULL) |
| return; |
| |
| stv0367_writebits(state, F367TER_TS_DIS, 0); |
| switch (PathTS) { |
| default: |
| /*for removing warning :default we can assume in parallel mode*/ |
| case STV0367_PARALLEL_PUNCT_CLOCK: |
| stv0367_writebits(state, F367TER_TSFIFO_SERIAL, 0); |
| stv0367_writebits(state, F367TER_TSFIFO_DVBCI, 0); |
| break; |
| case STV0367_SERIAL_PUNCT_CLOCK: |
| stv0367_writebits(state, F367TER_TSFIFO_SERIAL, 1); |
| stv0367_writebits(state, F367TER_TSFIFO_DVBCI, 1); |
| break; |
| } |
| } |
| |
| static void stv0367ter_set_clk_pol(struct stv0367_state *state, |
| enum stv0367_clk_pol clock) |
| { |
| |
| dprintk("%s:\n", __func__); |
| |
| if (state == NULL) |
| return; |
| |
| switch (clock) { |
| case STV0367_RISINGEDGE_CLOCK: |
| stv0367_writebits(state, F367TER_TS_BYTE_CLK_INV, 1); |
| break; |
| case STV0367_FALLINGEDGE_CLOCK: |
| stv0367_writebits(state, F367TER_TS_BYTE_CLK_INV, 0); |
| break; |
| /*case FE_TER_CLOCK_POLARITY_DEFAULT:*/ |
| default: |
| stv0367_writebits(state, F367TER_TS_BYTE_CLK_INV, 0); |
| break; |
| } |
| } |
| |
| #if 0 |
| static void stv0367ter_core_sw(struct stv0367_state *state) |
| { |
| |
| dprintk("%s:\n", __func__); |
| |
| stv0367_writebits(state, F367TER_CORE_ACTIVE, 0); |
| stv0367_writebits(state, F367TER_CORE_ACTIVE, 1); |
| msleep(350); |
| } |
| #endif |
| static int stv0367ter_standby(struct dvb_frontend *fe, u8 standby_on) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| |
| dprintk("%s:\n", __func__); |
| |
| if (standby_on) { |
| stv0367_writebits(state, F367TER_STDBY, 1); |
| stv0367_writebits(state, F367TER_STDBY_FEC, 1); |
| stv0367_writebits(state, F367TER_STDBY_CORE, 1); |
| } else { |
| stv0367_writebits(state, F367TER_STDBY, 0); |
| stv0367_writebits(state, F367TER_STDBY_FEC, 0); |
| stv0367_writebits(state, F367TER_STDBY_CORE, 0); |
| } |
| |
| return 0; |
| } |
| |
| static int stv0367ter_sleep(struct dvb_frontend *fe) |
| { |
| return stv0367ter_standby(fe, 1); |
| } |
| |
| static int stv0367ter_init(struct dvb_frontend *fe) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| struct stv0367ter_state *ter_state = state->ter_state; |
| |
| dprintk("%s:\n", __func__); |
| |
| ter_state->pBER = 0; |
| |
| stv0367_write_table(state, |
| stv0367_deftabs[state->deftabs][STV0367_TAB_TER]); |
| |
| stv0367_pll_setup(state, STV0367_ICSPEED_53125, state->config->xtal); |
| |
| stv0367_writereg(state, R367TER_I2CRPT, 0xa0); |
| stv0367_writereg(state, R367TER_ANACTRL, 0x00); |
| |
| /*Set TS1 and TS2 to serial or parallel mode */ |
| stv0367ter_set_ts_mode(state, state->config->ts_mode); |
| stv0367ter_set_clk_pol(state, state->config->clk_pol); |
| |
| state->chip_id = stv0367_readreg(state, R367TER_ID); |
| ter_state->first_lock = 0; |
| ter_state->unlock_counter = 2; |
| |
| return 0; |
| } |
| |
| static int stv0367ter_algo(struct dvb_frontend *fe) |
| { |
| struct dtv_frontend_properties *p = &fe->dtv_property_cache; |
| struct stv0367_state *state = fe->demodulator_priv; |
| struct stv0367ter_state *ter_state = state->ter_state; |
| int offset = 0, tempo = 0; |
| u8 u_var; |
| u8 /*constell,*/ counter; |
| s8 step; |
| s32 timing_offset = 0; |
| u32 trl_nomrate = 0, InternalFreq = 0, temp = 0, ifkhz = 0; |
| |
| dprintk("%s:\n", __func__); |
| |
| stv0367_get_if_khz(state, &ifkhz); |
| |
| ter_state->frequency = p->frequency; |
| ter_state->force = FE_TER_FORCENONE |
| + stv0367_readbits(state, F367TER_FORCE) * 2; |
| ter_state->if_iq_mode = state->config->if_iq_mode; |
| switch (state->config->if_iq_mode) { |
| case FE_TER_NORMAL_IF_TUNER: /* Normal IF mode */ |
| dprintk("ALGO: FE_TER_NORMAL_IF_TUNER selected\n"); |
| stv0367_writebits(state, F367TER_TUNER_BB, 0); |
| stv0367_writebits(state, F367TER_LONGPATH_IF, 0); |
| stv0367_writebits(state, F367TER_DEMUX_SWAP, 0); |
| break; |
| case FE_TER_LONGPATH_IF_TUNER: /* Long IF mode */ |
| dprintk("ALGO: FE_TER_LONGPATH_IF_TUNER selected\n"); |
| stv0367_writebits(state, F367TER_TUNER_BB, 0); |
| stv0367_writebits(state, F367TER_LONGPATH_IF, 1); |
| stv0367_writebits(state, F367TER_DEMUX_SWAP, 1); |
| break; |
| case FE_TER_IQ_TUNER: /* IQ mode */ |
| dprintk("ALGO: FE_TER_IQ_TUNER selected\n"); |
| stv0367_writebits(state, F367TER_TUNER_BB, 1); |
| stv0367_writebits(state, F367TER_PPM_INVSEL, 0); |
| break; |
| default: |
| printk(KERN_ERR "ALGO: wrong TUNER type selected\n"); |
| return -EINVAL; |
| } |
| |
| usleep_range(5000, 7000); |
| |
| switch (p->inversion) { |
| case INVERSION_AUTO: |
| default: |
| dprintk("%s: inversion AUTO\n", __func__); |
| if (ter_state->if_iq_mode == FE_TER_IQ_TUNER) |
| stv0367_writebits(state, F367TER_IQ_INVERT, |
| ter_state->sense); |
| else |
| stv0367_writebits(state, F367TER_INV_SPECTR, |
| ter_state->sense); |
| |
| break; |
| case INVERSION_ON: |
| case INVERSION_OFF: |
| if (ter_state->if_iq_mode == FE_TER_IQ_TUNER) |
| stv0367_writebits(state, F367TER_IQ_INVERT, |
| p->inversion); |
| else |
| stv0367_writebits(state, F367TER_INV_SPECTR, |
| p->inversion); |
| |
| break; |
| } |
| |
| if ((ter_state->if_iq_mode != FE_TER_NORMAL_IF_TUNER) && |
| (ter_state->pBW != ter_state->bw)) { |
| stv0367ter_agc_iir_lock_detect_set(state); |
| |
| /*set fine agc target to 180 for LPIF or IQ mode*/ |
| /* set Q_AGCTarget */ |
| stv0367_writebits(state, F367TER_SEL_IQNTAR, 1); |
| stv0367_writebits(state, F367TER_AUT_AGC_TARGET_MSB, 0xB); |
| /*stv0367_writebits(state,AUT_AGC_TARGET_LSB,0x04); */ |
| |
| /* set Q_AGCTarget */ |
| stv0367_writebits(state, F367TER_SEL_IQNTAR, 0); |
| stv0367_writebits(state, F367TER_AUT_AGC_TARGET_MSB, 0xB); |
| /*stv0367_writebits(state,AUT_AGC_TARGET_LSB,0x04); */ |
| |
| if (!stv0367_iir_filt_init(state, ter_state->bw, |
| state->config->xtal)) |
| return -EINVAL; |
| /*set IIR filter once for 6,7 or 8MHz BW*/ |
| ter_state->pBW = ter_state->bw; |
| |
| stv0367ter_agc_iir_rst(state); |
| } |
| |
| if (ter_state->hierarchy == FE_TER_HIER_LOW_PRIO) |
| stv0367_writebits(state, F367TER_BDI_LPSEL, 0x01); |
| else |
| stv0367_writebits(state, F367TER_BDI_LPSEL, 0x00); |
| |
| InternalFreq = stv0367ter_get_mclk(state, state->config->xtal) / 1000; |
| temp = (int) |
| ((((ter_state->bw * 64 * (1 << 15) * 100) |
| / (InternalFreq)) * 10) / 7); |
| |
| stv0367_writebits(state, F367TER_TRL_NOMRATE_LSB, temp % 2); |
| temp = temp / 2; |
| stv0367_writebits(state, F367TER_TRL_NOMRATE_HI, temp / 256); |
| stv0367_writebits(state, F367TER_TRL_NOMRATE_LO, temp % 256); |
| |
| temp = stv0367_readbits(state, F367TER_TRL_NOMRATE_HI) * 512 + |
| stv0367_readbits(state, F367TER_TRL_NOMRATE_LO) * 2 + |
| stv0367_readbits(state, F367TER_TRL_NOMRATE_LSB); |
| temp = (int)(((1 << 17) * ter_state->bw * 1000) / (7 * (InternalFreq))); |
| stv0367_writebits(state, F367TER_GAIN_SRC_HI, temp / 256); |
| stv0367_writebits(state, F367TER_GAIN_SRC_LO, temp % 256); |
| temp = stv0367_readbits(state, F367TER_GAIN_SRC_HI) * 256 + |
| stv0367_readbits(state, F367TER_GAIN_SRC_LO); |
| |
| temp = (int) |
| ((InternalFreq - ifkhz) * (1 << 16) / (InternalFreq)); |
| |
| dprintk("DEROT temp=0x%x\n", temp); |
| stv0367_writebits(state, F367TER_INC_DEROT_HI, temp / 256); |
| stv0367_writebits(state, F367TER_INC_DEROT_LO, temp % 256); |
| |
| ter_state->echo_pos = 0; |
| ter_state->ucblocks = 0; /* liplianin */ |
| ter_state->pBER = 0; /* liplianin */ |
| stv0367_writebits(state, F367TER_LONG_ECHO, ter_state->echo_pos); |
| |
| if (stv0367ter_lock_algo(state) != FE_TER_LOCKOK) |
| return 0; |
| |
| ter_state->state = FE_TER_LOCKOK; |
| |
| ter_state->mode = stv0367_readbits(state, F367TER_SYR_MODE); |
| ter_state->guard = stv0367_readbits(state, F367TER_SYR_GUARD); |
| |
| ter_state->first_lock = 1; /* we know sense now :) */ |
| |
| ter_state->agc_val = |
| (stv0367_readbits(state, F367TER_AGC1_VAL_LO) << 16) + |
| (stv0367_readbits(state, F367TER_AGC1_VAL_HI) << 24) + |
| stv0367_readbits(state, F367TER_AGC2_VAL_LO) + |
| (stv0367_readbits(state, F367TER_AGC2_VAL_HI) << 8); |
| |
| /* Carrier offset calculation */ |
| stv0367_writebits(state, F367TER_FREEZE, 1); |
| offset = (stv0367_readbits(state, F367TER_CRL_FOFFSET_VHI) << 16) ; |
| offset += (stv0367_readbits(state, F367TER_CRL_FOFFSET_HI) << 8); |
| offset += (stv0367_readbits(state, F367TER_CRL_FOFFSET_LO)); |
| stv0367_writebits(state, F367TER_FREEZE, 0); |
| if (offset > 8388607) |
| offset -= 16777216; |
| |
| offset = offset * 2 / 16384; |
| |
| if (ter_state->mode == FE_TER_MODE_2K) |
| offset = (offset * 4464) / 1000;/*** 1 FFT BIN=4.464khz***/ |
| else if (ter_state->mode == FE_TER_MODE_4K) |
| offset = (offset * 223) / 100;/*** 1 FFT BIN=2.23khz***/ |
| else if (ter_state->mode == FE_TER_MODE_8K) |
| offset = (offset * 111) / 100;/*** 1 FFT BIN=1.1khz***/ |
| |
| if (stv0367_readbits(state, F367TER_PPM_INVSEL) == 1) { |
| if ((stv0367_readbits(state, F367TER_INV_SPECTR) == |
| (stv0367_readbits(state, |
| F367TER_STATUS_INV_SPECRUM) == 1))) |
| offset = offset * -1; |
| } |
| |
| if (ter_state->bw == 6) |
| offset = (offset * 6) / 8; |
| else if (ter_state->bw == 7) |
| offset = (offset * 7) / 8; |
| |
| ter_state->frequency += offset; |
| |
| tempo = 10; /* exit even if timing_offset stays null */ |
| while ((timing_offset == 0) && (tempo > 0)) { |
| usleep_range(10000, 20000); /*was 20ms */ |
| /* fine tuning of timing offset if required */ |
| timing_offset = stv0367_readbits(state, F367TER_TRL_TOFFSET_LO) |
| + 256 * stv0367_readbits(state, |
| F367TER_TRL_TOFFSET_HI); |
| if (timing_offset >= 32768) |
| timing_offset -= 65536; |
| trl_nomrate = (512 * stv0367_readbits(state, |
| F367TER_TRL_NOMRATE_HI) |
| + stv0367_readbits(state, F367TER_TRL_NOMRATE_LO) * 2 |
| + stv0367_readbits(state, F367TER_TRL_NOMRATE_LSB)); |
| |
| timing_offset = ((signed)(1000000 / trl_nomrate) * |
| timing_offset) / 2048; |
| tempo--; |
| } |
| |
| if (timing_offset <= 0) { |
| timing_offset = (timing_offset - 11) / 22; |
| step = -1; |
| } else { |
| timing_offset = (timing_offset + 11) / 22; |
| step = 1; |
| } |
| |
| for (counter = 0; counter < abs(timing_offset); counter++) { |
| trl_nomrate += step; |
| stv0367_writebits(state, F367TER_TRL_NOMRATE_LSB, |
| trl_nomrate % 2); |
| stv0367_writebits(state, F367TER_TRL_NOMRATE_LO, |
| trl_nomrate / 2); |
| usleep_range(1000, 2000); |
| } |
| |
| usleep_range(5000, 6000); |
| /* unlocks could happen in case of trl centring big step, |
| then a core off/on restarts demod */ |
| u_var = stv0367_readbits(state, F367TER_LK); |
| |
| if (!u_var) { |
| stv0367_writebits(state, F367TER_CORE_ACTIVE, 0); |
| msleep(20); |
| stv0367_writebits(state, F367TER_CORE_ACTIVE, 1); |
| } |
| |
| return 0; |
| } |
| |
| static int stv0367ter_set_frontend(struct dvb_frontend *fe) |
| { |
| struct dtv_frontend_properties *p = &fe->dtv_property_cache; |
| struct stv0367_state *state = fe->demodulator_priv; |
| struct stv0367ter_state *ter_state = state->ter_state; |
| |
| /*u8 trials[2]; */ |
| s8 num_trials, index; |
| u8 SenseTrials[] = { INVERSION_ON, INVERSION_OFF }; |
| |
| if (state->reinit_on_setfrontend) |
| stv0367ter_init(fe); |
| |
| if (fe->ops.tuner_ops.set_params) { |
| if (state->use_i2c_gatectrl && fe->ops.i2c_gate_ctrl) |
| fe->ops.i2c_gate_ctrl(fe, 1); |
| fe->ops.tuner_ops.set_params(fe); |
| if (state->use_i2c_gatectrl && fe->ops.i2c_gate_ctrl) |
| fe->ops.i2c_gate_ctrl(fe, 0); |
| } |
| |
| switch (p->transmission_mode) { |
| default: |
| case TRANSMISSION_MODE_AUTO: |
| case TRANSMISSION_MODE_2K: |
| ter_state->mode = FE_TER_MODE_2K; |
| break; |
| /* case TRANSMISSION_MODE_4K: |
| pLook.mode = FE_TER_MODE_4K; |
| break;*/ |
| case TRANSMISSION_MODE_8K: |
| ter_state->mode = FE_TER_MODE_8K; |
| break; |
| } |
| |
| switch (p->guard_interval) { |
| default: |
| case GUARD_INTERVAL_1_32: |
| case GUARD_INTERVAL_1_16: |
| case GUARD_INTERVAL_1_8: |
| case GUARD_INTERVAL_1_4: |
| ter_state->guard = p->guard_interval; |
| break; |
| case GUARD_INTERVAL_AUTO: |
| ter_state->guard = GUARD_INTERVAL_1_32; |
| break; |
| } |
| |
| switch (p->bandwidth_hz) { |
| case 6000000: |
| ter_state->bw = FE_TER_CHAN_BW_6M; |
| break; |
| case 7000000: |
| ter_state->bw = FE_TER_CHAN_BW_7M; |
| break; |
| case 8000000: |
| default: |
| ter_state->bw = FE_TER_CHAN_BW_8M; |
| } |
| |
| ter_state->hierarchy = FE_TER_HIER_NONE; |
| |
| switch (p->inversion) { |
| case INVERSION_OFF: |
| case INVERSION_ON: |
| num_trials = 1; |
| break; |
| default: |
| num_trials = 2; |
| if (ter_state->first_lock) |
| num_trials = 1; |
| break; |
| } |
| |
| ter_state->state = FE_TER_NOLOCK; |
| index = 0; |
| |
| while (((index) < num_trials) && (ter_state->state != FE_TER_LOCKOK)) { |
| if (!ter_state->first_lock) { |
| if (p->inversion == INVERSION_AUTO) |
| ter_state->sense = SenseTrials[index]; |
| |
| } |
| stv0367ter_algo(fe); |
| |
| if ((ter_state->state == FE_TER_LOCKOK) && |
| (p->inversion == INVERSION_AUTO) && |
| (index == 1)) { |
| /* invert spectrum sense */ |
| SenseTrials[index] = SenseTrials[0]; |
| SenseTrials[(index + 1) % 2] = (SenseTrials[1] + 1) % 2; |
| } |
| |
| index++; |
| } |
| |
| return 0; |
| } |
| |
| static int stv0367ter_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| struct stv0367ter_state *ter_state = state->ter_state; |
| u32 errs = 0; |
| |
| /*wait for counting completion*/ |
| if (stv0367_readbits(state, F367TER_SFERRC_OLDVALUE) == 0) { |
| errs = |
| ((u32)stv0367_readbits(state, F367TER_ERR_CNT1) |
| * (1 << 16)) |
| + ((u32)stv0367_readbits(state, F367TER_ERR_CNT1_HI) |
| * (1 << 8)) |
| + ((u32)stv0367_readbits(state, F367TER_ERR_CNT1_LO)); |
| ter_state->ucblocks = errs; |
| } |
| |
| (*ucblocks) = ter_state->ucblocks; |
| |
| return 0; |
| } |
| |
| static int stv0367ter_get_frontend(struct dvb_frontend *fe, |
| struct dtv_frontend_properties *p) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| struct stv0367ter_state *ter_state = state->ter_state; |
| enum stv0367_ter_mode mode; |
| int constell = 0,/* snr = 0,*/ Data = 0; |
| |
| p->frequency = stv0367_get_tuner_freq(fe); |
| if ((int)p->frequency < 0) |
| p->frequency = -p->frequency; |
| |
| constell = stv0367_readbits(state, F367TER_TPS_CONST); |
| if (constell == 0) |
| p->modulation = QPSK; |
| else if (constell == 1) |
| p->modulation = QAM_16; |
| else |
| p->modulation = QAM_64; |
| |
| p->inversion = stv0367_readbits(state, F367TER_INV_SPECTR); |
| |
| /* Get the Hierarchical mode */ |
| Data = stv0367_readbits(state, F367TER_TPS_HIERMODE); |
| |
| switch (Data) { |
| case 0: |
| p->hierarchy = HIERARCHY_NONE; |
| break; |
| case 1: |
| p->hierarchy = HIERARCHY_1; |
| break; |
| case 2: |
| p->hierarchy = HIERARCHY_2; |
| break; |
| case 3: |
| p->hierarchy = HIERARCHY_4; |
| break; |
| default: |
| p->hierarchy = HIERARCHY_AUTO; |
| break; /* error */ |
| } |
| |
| /* Get the FEC Rate */ |
| if (ter_state->hierarchy == FE_TER_HIER_LOW_PRIO) |
| Data = stv0367_readbits(state, F367TER_TPS_LPCODE); |
| else |
| Data = stv0367_readbits(state, F367TER_TPS_HPCODE); |
| |
| switch (Data) { |
| case 0: |
| p->code_rate_HP = FEC_1_2; |
| break; |
| case 1: |
| p->code_rate_HP = FEC_2_3; |
| break; |
| case 2: |
| p->code_rate_HP = FEC_3_4; |
| break; |
| case 3: |
| p->code_rate_HP = FEC_5_6; |
| break; |
| case 4: |
| p->code_rate_HP = FEC_7_8; |
| break; |
| default: |
| p->code_rate_HP = FEC_AUTO; |
| break; /* error */ |
| } |
| |
| mode = stv0367_readbits(state, F367TER_SYR_MODE); |
| |
| switch (mode) { |
| case FE_TER_MODE_2K: |
| p->transmission_mode = TRANSMISSION_MODE_2K; |
| break; |
| /* case FE_TER_MODE_4K: |
| p->transmission_mode = TRANSMISSION_MODE_4K; |
| break;*/ |
| case FE_TER_MODE_8K: |
| p->transmission_mode = TRANSMISSION_MODE_8K; |
| break; |
| default: |
| p->transmission_mode = TRANSMISSION_MODE_AUTO; |
| } |
| |
| p->guard_interval = stv0367_readbits(state, F367TER_SYR_GUARD); |
| |
| return 0; |
| } |
| |
| static u32 stv0367ter_snr_readreg(struct dvb_frontend *fe) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| u32 snru32 = 0; |
| int cpt = 0; |
| u8 cut = stv0367_readbits(state, F367TER_IDENTIFICATIONREG); |
| |
| while (cpt < 10) { |
| usleep_range(2000, 3000); |
| if (cut == 0x50) /*cut 1.0 cut 1.1*/ |
| snru32 += stv0367_readbits(state, F367TER_CHCSNR) / 4; |
| else /*cu2.0*/ |
| snru32 += 125 * stv0367_readbits(state, F367TER_CHCSNR); |
| |
| cpt++; |
| } |
| snru32 /= 10;/*average on 10 values*/ |
| |
| return snru32; |
| } |
| |
| static int stv0367ter_read_snr(struct dvb_frontend *fe, u16 *snr) |
| { |
| u32 snrval = stv0367ter_snr_readreg(fe); |
| |
| *snr = snrval / 1000; |
| |
| return 0; |
| } |
| |
| #if 0 |
| static int stv0367ter_status(struct dvb_frontend *fe) |
| { |
| |
| struct stv0367_state *state = fe->demodulator_priv; |
| struct stv0367ter_state *ter_state = state->ter_state; |
| int locked = FALSE; |
| |
| locked = (stv0367_readbits(state, F367TER_LK)); |
| if (!locked) |
| ter_state->unlock_counter += 1; |
| else |
| ter_state->unlock_counter = 0; |
| |
| if (ter_state->unlock_counter > 2) { |
| if (!stv0367_readbits(state, F367TER_TPS_LOCK) || |
| (!stv0367_readbits(state, F367TER_LK))) { |
| stv0367_writebits(state, F367TER_CORE_ACTIVE, 0); |
| usleep_range(2000, 3000); |
| stv0367_writebits(state, F367TER_CORE_ACTIVE, 1); |
| msleep(350); |
| locked = (stv0367_readbits(state, F367TER_TPS_LOCK)) && |
| (stv0367_readbits(state, F367TER_LK)); |
| } |
| |
| } |
| |
| return locked; |
| } |
| #endif |
| static int stv0367ter_read_status(struct dvb_frontend *fe, |
| enum fe_status *status) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| |
| dprintk("%s:\n", __func__); |
| |
| *status = 0; |
| |
| if (stv0367_readbits(state, F367TER_LK)) { |
| *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
| | FE_HAS_SYNC | FE_HAS_LOCK; |
| dprintk("%s: stv0367 has locked\n", __func__); |
| } |
| |
| return 0; |
| } |
| |
| static int stv0367ter_read_ber(struct dvb_frontend *fe, u32 *ber) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| struct stv0367ter_state *ter_state = state->ter_state; |
| u32 Errors = 0, tber = 0, temporary = 0; |
| int abc = 0, def = 0; |
| |
| |
| /*wait for counting completion*/ |
| if (stv0367_readbits(state, F367TER_SFERRC_OLDVALUE) == 0) |
| Errors = ((u32)stv0367_readbits(state, F367TER_SFEC_ERR_CNT) |
| * (1 << 16)) |
| + ((u32)stv0367_readbits(state, F367TER_SFEC_ERR_CNT_HI) |
| * (1 << 8)) |
| + ((u32)stv0367_readbits(state, |
| F367TER_SFEC_ERR_CNT_LO)); |
| /*measurement not completed, load previous value*/ |
| else { |
| tber = ter_state->pBER; |
| return 0; |
| } |
| |
| abc = stv0367_readbits(state, F367TER_SFEC_ERR_SOURCE); |
| def = stv0367_readbits(state, F367TER_SFEC_NUM_EVENT); |
| |
| if (Errors == 0) { |
| tber = 0; |
| } else if (abc == 0x7) { |
| if (Errors <= 4) { |
| temporary = (Errors * 1000000000) / (8 * (1 << 14)); |
| } else if (Errors <= 42) { |
| temporary = (Errors * 100000000) / (8 * (1 << 14)); |
| temporary = temporary * 10; |
| } else if (Errors <= 429) { |
| temporary = (Errors * 10000000) / (8 * (1 << 14)); |
| temporary = temporary * 100; |
| } else if (Errors <= 4294) { |
| temporary = (Errors * 1000000) / (8 * (1 << 14)); |
| temporary = temporary * 1000; |
| } else if (Errors <= 42949) { |
| temporary = (Errors * 100000) / (8 * (1 << 14)); |
| temporary = temporary * 10000; |
| } else if (Errors <= 429496) { |
| temporary = (Errors * 10000) / (8 * (1 << 14)); |
| temporary = temporary * 100000; |
| } else { /*if (Errors<4294967) 2^22 max error*/ |
| temporary = (Errors * 1000) / (8 * (1 << 14)); |
| temporary = temporary * 100000; /* still to *10 */ |
| } |
| |
| /* Byte error*/ |
| if (def == 2) |
| /*tber=Errors/(8*(1 <<14));*/ |
| tber = temporary; |
| else if (def == 3) |
| /*tber=Errors/(8*(1 <<16));*/ |
| tber = temporary / 4; |
| else if (def == 4) |
| /*tber=Errors/(8*(1 <<18));*/ |
| tber = temporary / 16; |
| else if (def == 5) |
| /*tber=Errors/(8*(1 <<20));*/ |
| tber = temporary / 64; |
| else if (def == 6) |
| /*tber=Errors/(8*(1 <<22));*/ |
| tber = temporary / 256; |
| else |
| /* should not pass here*/ |
| tber = 0; |
| |
| if ((Errors < 4294967) && (Errors > 429496)) |
| tber *= 10; |
| |
| } |
| |
| /* save actual value */ |
| ter_state->pBER = tber; |
| |
| (*ber) = tber; |
| |
| return 0; |
| } |
| #if 0 |
| static u32 stv0367ter_get_per(struct stv0367_state *state) |
| { |
| struct stv0367ter_state *ter_state = state->ter_state; |
| u32 Errors = 0, Per = 0, temporary = 0; |
| int abc = 0, def = 0, cpt = 0; |
| |
| while (((stv0367_readbits(state, F367TER_SFERRC_OLDVALUE) == 1) && |
| (cpt < 400)) || ((Errors == 0) && (cpt < 400))) { |
| usleep_range(1000, 2000); |
| Errors = ((u32)stv0367_readbits(state, F367TER_ERR_CNT1) |
| * (1 << 16)) |
| + ((u32)stv0367_readbits(state, F367TER_ERR_CNT1_HI) |
| * (1 << 8)) |
| + ((u32)stv0367_readbits(state, F367TER_ERR_CNT1_LO)); |
| cpt++; |
| } |
| abc = stv0367_readbits(state, F367TER_ERR_SRC1); |
| def = stv0367_readbits(state, F367TER_NUM_EVT1); |
| |
| if (Errors == 0) |
| Per = 0; |
| else if (abc == 0x9) { |
| if (Errors <= 4) { |
| temporary = (Errors * 1000000000) / (8 * (1 << 8)); |
| } else if (Errors <= 42) { |
| temporary = (Errors * 100000000) / (8 * (1 << 8)); |
| temporary = temporary * 10; |
| } else if (Errors <= 429) { |
| temporary = (Errors * 10000000) / (8 * (1 << 8)); |
| temporary = temporary * 100; |
| } else if (Errors <= 4294) { |
| temporary = (Errors * 1000000) / (8 * (1 << 8)); |
| temporary = temporary * 1000; |
| } else if (Errors <= 42949) { |
| temporary = (Errors * 100000) / (8 * (1 << 8)); |
| temporary = temporary * 10000; |
| } else { /*if(Errors<=429496) 2^16 errors max*/ |
| temporary = (Errors * 10000) / (8 * (1 << 8)); |
| temporary = temporary * 100000; |
| } |
| |
| /* pkt error*/ |
| if (def == 2) |
| /*Per=Errors/(1 << 8);*/ |
| Per = temporary; |
| else if (def == 3) |
| /*Per=Errors/(1 << 10);*/ |
| Per = temporary / 4; |
| else if (def == 4) |
| /*Per=Errors/(1 << 12);*/ |
| Per = temporary / 16; |
| else if (def == 5) |
| /*Per=Errors/(1 << 14);*/ |
| Per = temporary / 64; |
| else if (def == 6) |
| /*Per=Errors/(1 << 16);*/ |
| Per = temporary / 256; |
| else |
| Per = 0; |
| |
| } |
| /* save actual value */ |
| ter_state->pPER = Per; |
| |
| return Per; |
| } |
| #endif |
| static int stv0367_get_tune_settings(struct dvb_frontend *fe, |
| struct dvb_frontend_tune_settings |
| *fe_tune_settings) |
| { |
| fe_tune_settings->min_delay_ms = 1000; |
| fe_tune_settings->step_size = 0; |
| fe_tune_settings->max_drift = 0; |
| |
| return 0; |
| } |
| |
| static void stv0367_release(struct dvb_frontend *fe) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| |
| kfree(state->ter_state); |
| kfree(state->cab_state); |
| kfree(state); |
| } |
| |
| static const struct dvb_frontend_ops stv0367ter_ops = { |
| .delsys = { SYS_DVBT }, |
| .info = { |
| .name = "ST STV0367 DVB-T", |
| .frequency_min_hz = 47 * MHz, |
| .frequency_max_hz = 862 * MHz, |
| .frequency_stepsize_hz = 15625, |
| .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_128 | FE_CAN_QAM_256 | FE_CAN_QAM_AUTO | |
| FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_RECOVER | |
| FE_CAN_INVERSION_AUTO | |
| FE_CAN_MUTE_TS |
| }, |
| .release = stv0367_release, |
| .init = stv0367ter_init, |
| .sleep = stv0367ter_sleep, |
| .i2c_gate_ctrl = stv0367ter_gate_ctrl, |
| .set_frontend = stv0367ter_set_frontend, |
| .get_frontend = stv0367ter_get_frontend, |
| .get_tune_settings = stv0367_get_tune_settings, |
| .read_status = stv0367ter_read_status, |
| .read_ber = stv0367ter_read_ber,/* too slow */ |
| /* .read_signal_strength = stv0367_read_signal_strength,*/ |
| .read_snr = stv0367ter_read_snr, |
| .read_ucblocks = stv0367ter_read_ucblocks, |
| }; |
| |
| struct dvb_frontend *stv0367ter_attach(const struct stv0367_config *config, |
| struct i2c_adapter *i2c) |
| { |
| struct stv0367_state *state = NULL; |
| struct stv0367ter_state *ter_state = NULL; |
| |
| /* allocate memory for the internal state */ |
| state = kzalloc(sizeof(struct stv0367_state), GFP_KERNEL); |
| if (state == NULL) |
| goto error; |
| ter_state = kzalloc(sizeof(struct stv0367ter_state), GFP_KERNEL); |
| if (ter_state == NULL) |
| goto error; |
| |
| /* setup the state */ |
| state->i2c = i2c; |
| state->config = config; |
| state->ter_state = ter_state; |
| state->fe.ops = stv0367ter_ops; |
| state->fe.demodulator_priv = state; |
| state->chip_id = stv0367_readreg(state, 0xf000); |
| |
| /* demod operation options */ |
| state->use_i2c_gatectrl = 1; |
| state->deftabs = STV0367_DEFTAB_GENERIC; |
| state->reinit_on_setfrontend = 1; |
| state->auto_if_khz = 0; |
| |
| dprintk("%s: chip_id = 0x%x\n", __func__, state->chip_id); |
| |
| /* check if the demod is there */ |
| if ((state->chip_id != 0x50) && (state->chip_id != 0x60)) |
| goto error; |
| |
| return &state->fe; |
| |
| error: |
| kfree(ter_state); |
| kfree(state); |
| return NULL; |
| } |
| EXPORT_SYMBOL(stv0367ter_attach); |
| |
| static int stv0367cab_gate_ctrl(struct dvb_frontend *fe, int enable) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| |
| dprintk("%s:\n", __func__); |
| |
| stv0367_writebits(state, F367CAB_I2CT_ON, (enable > 0) ? 1 : 0); |
| |
| return 0; |
| } |
| |
| static u32 stv0367cab_get_mclk(struct dvb_frontend *fe, u32 ExtClk_Hz) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| u32 mclk_Hz = 0;/* master clock frequency (Hz) */ |
| u32 M, N, P; |
| |
| |
| if (stv0367_readbits(state, F367CAB_BYPASS_PLLXN) == 0) { |
| N = (u32)stv0367_readbits(state, F367CAB_PLL_NDIV); |
| if (N == 0) |
| N = N + 1; |
| |
| M = (u32)stv0367_readbits(state, F367CAB_PLL_MDIV); |
| if (M == 0) |
| M = M + 1; |
| |
| P = (u32)stv0367_readbits(state, F367CAB_PLL_PDIV); |
| |
| if (P > 5) |
| P = 5; |
| |
| mclk_Hz = ((ExtClk_Hz / 2) * N) / (M * (1 << P)); |
| dprintk("stv0367cab_get_mclk BYPASS_PLLXN mclk_Hz=%d\n", |
| mclk_Hz); |
| } else |
| mclk_Hz = ExtClk_Hz; |
| |
| dprintk("stv0367cab_get_mclk final mclk_Hz=%d\n", mclk_Hz); |
| |
| return mclk_Hz; |
| } |
| |
| static u32 stv0367cab_get_adc_freq(struct dvb_frontend *fe, u32 ExtClk_Hz) |
| { |
| u32 ADCClk_Hz = ExtClk_Hz; |
| |
| ADCClk_Hz = stv0367cab_get_mclk(fe, ExtClk_Hz); |
| |
| return ADCClk_Hz; |
| } |
| |
| static enum stv0367cab_mod stv0367cab_SetQamSize(struct stv0367_state *state, |
| u32 SymbolRate, |
| enum stv0367cab_mod QAMSize) |
| { |
| /* Set QAM size */ |
| stv0367_writebits(state, F367CAB_QAM_MODE, QAMSize); |
| |
| /* Set Registers settings specific to the QAM size */ |
| switch (QAMSize) { |
| case FE_CAB_MOD_QAM4: |
| stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x00); |
| break; |
| case FE_CAB_MOD_QAM16: |
| stv0367_writereg(state, R367CAB_AGC_PWR_REF_L, 0x64); |
| stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x00); |
| stv0367_writereg(state, R367CAB_FSM_STATE, 0x90); |
| stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xc1); |
| stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa7); |
| stv0367_writereg(state, R367CAB_EQU_CRL_LD_SEN, 0x95); |
| stv0367_writereg(state, R367CAB_EQU_CRL_LIMITER, 0x40); |
| stv0367_writereg(state, R367CAB_EQU_PNT_GAIN, 0x8a); |
| break; |
| case FE_CAB_MOD_QAM32: |
| stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x00); |
| stv0367_writereg(state, R367CAB_AGC_PWR_REF_L, 0x6e); |
| stv0367_writereg(state, R367CAB_FSM_STATE, 0xb0); |
| stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xc1); |
| stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xb7); |
| stv0367_writereg(state, R367CAB_EQU_CRL_LD_SEN, 0x9d); |
| stv0367_writereg(state, R367CAB_EQU_CRL_LIMITER, 0x7f); |
| stv0367_writereg(state, R367CAB_EQU_PNT_GAIN, 0xa7); |
| break; |
| case FE_CAB_MOD_QAM64: |
| stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x82); |
| stv0367_writereg(state, R367CAB_AGC_PWR_REF_L, 0x5a); |
| if (SymbolRate > 4500000) { |
| stv0367_writereg(state, R367CAB_FSM_STATE, 0xb0); |
| stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xc1); |
| stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa5); |
| } else if (SymbolRate > 2500000) { |
| stv0367_writereg(state, R367CAB_FSM_STATE, 0xa0); |
| stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xc1); |
| stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa6); |
| } else { |
| stv0367_writereg(state, R367CAB_FSM_STATE, 0xa0); |
| stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xd1); |
| stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa7); |
| } |
| stv0367_writereg(state, R367CAB_EQU_CRL_LD_SEN, 0x95); |
| stv0367_writereg(state, R367CAB_EQU_CRL_LIMITER, 0x40); |
| stv0367_writereg(state, R367CAB_EQU_PNT_GAIN, 0x99); |
| break; |
| case FE_CAB_MOD_QAM128: |
| stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x00); |
| stv0367_writereg(state, R367CAB_AGC_PWR_REF_L, 0x76); |
| stv0367_writereg(state, R367CAB_FSM_STATE, 0x90); |
| stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xb1); |
| if (SymbolRate > 4500000) |
| stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa7); |
| else if (SymbolRate > 2500000) |
| stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa6); |
| else |
| stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0x97); |
| |
| stv0367_writereg(state, R367CAB_EQU_CRL_LD_SEN, 0x8e); |
| stv0367_writereg(state, R367CAB_EQU_CRL_LIMITER, 0x7f); |
| stv0367_writereg(state, R367CAB_EQU_PNT_GAIN, 0xa7); |
| break; |
| case FE_CAB_MOD_QAM256: |
| stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x94); |
| stv0367_writereg(state, R367CAB_AGC_PWR_REF_L, 0x5a); |
| stv0367_writereg(state, R367CAB_FSM_STATE, 0xa0); |
| if (SymbolRate > 4500000) |
| stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xc1); |
| else if (SymbolRate > 2500000) |
| stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xc1); |
| else |
| stv0367_writereg(state, R367CAB_EQU_CTR_LPF_GAIN, 0xd1); |
| |
| stv0367_writereg(state, R367CAB_EQU_CRL_LPF_GAIN, 0xa7); |
| stv0367_writereg(state, R367CAB_EQU_CRL_LD_SEN, 0x85); |
| stv0367_writereg(state, R367CAB_EQU_CRL_LIMITER, 0x40); |
| stv0367_writereg(state, R367CAB_EQU_PNT_GAIN, 0xa7); |
| break; |
| case FE_CAB_MOD_QAM512: |
| stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x00); |
| break; |
| case FE_CAB_MOD_QAM1024: |
| stv0367_writereg(state, R367CAB_IQDEM_ADJ_AGC_REF, 0x00); |
| break; |
| default: |
| break; |
| } |
| |
| return QAMSize; |
| } |
| |
| static u32 stv0367cab_set_derot_freq(struct stv0367_state *state, |
| u32 adc_hz, s32 derot_hz) |
| { |
| u32 sampled_if = 0; |
| u32 adc_khz; |
| |
| adc_khz = adc_hz / 1000; |
| |
| dprintk("%s: adc_hz=%d derot_hz=%d\n", __func__, adc_hz, derot_hz); |
| |
| if (adc_khz != 0) { |
| if (derot_hz < 1000000) |
| derot_hz = adc_hz / 4; /* ZIF operation */ |
| if (derot_hz > adc_hz) |
| derot_hz = derot_hz - adc_hz; |
| sampled_if = (u32)derot_hz / 1000; |
| sampled_if *= 32768; |
| sampled_if /= adc_khz; |
| sampled_if *= 256; |
| } |
| |
| if (sampled_if > 8388607) |
| sampled_if = 8388607; |
| |
| dprintk("%s: sampled_if=0x%x\n", __func__, sampled_if); |
| |
| stv0367_writereg(state, R367CAB_MIX_NCO_LL, sampled_if); |
| stv0367_writereg(state, R367CAB_MIX_NCO_HL, (sampled_if >> 8)); |
| stv0367_writebits(state, F367CAB_MIX_NCO_INC_HH, (sampled_if >> 16)); |
| |
| return derot_hz; |
| } |
| |
| static u32 stv0367cab_get_derot_freq(struct stv0367_state *state, u32 adc_hz) |
| { |
| u32 sampled_if; |
| |
| sampled_if = stv0367_readbits(state, F367CAB_MIX_NCO_INC_LL) + |
| (stv0367_readbits(state, F367CAB_MIX_NCO_INC_HL) << 8) + |
| (stv0367_readbits(state, F367CAB_MIX_NCO_INC_HH) << 16); |
| |
| sampled_if /= 256; |
| sampled_if *= (adc_hz / 1000); |
| sampled_if += 1; |
| sampled_if /= 32768; |
| |
| return sampled_if; |
| } |
| |
| static u32 stv0367cab_set_srate(struct stv0367_state *state, u32 adc_hz, |
| u32 mclk_hz, u32 SymbolRate, |
| enum stv0367cab_mod QAMSize) |
| { |
| u32 QamSizeCorr = 0; |
| u32 u32_tmp = 0, u32_tmp1 = 0; |
| u32 adp_khz; |
| |
| dprintk("%s:\n", __func__); |
| |
| /* Set Correction factor of SRC gain */ |
| switch (QAMSize) { |
| case FE_CAB_MOD_QAM4: |
| QamSizeCorr = 1110; |
| break; |
| case FE_CAB_MOD_QAM16: |
| QamSizeCorr = 1032; |
| break; |
| case FE_CAB_MOD_QAM32: |
| QamSizeCorr = 954; |
| break; |
| case FE_CAB_MOD_QAM64: |
| QamSizeCorr = 983; |
| break; |
| case FE_CAB_MOD_QAM128: |
| QamSizeCorr = 957; |
| break; |
| case FE_CAB_MOD_QAM256: |
| QamSizeCorr = 948; |
| break; |
| case FE_CAB_MOD_QAM512: |
| QamSizeCorr = 0; |
| break; |
| case FE_CAB_MOD_QAM1024: |
| QamSizeCorr = 944; |
| break; |
| default: |
| break; |
| } |
| |
| /* Transfer ratio calculation */ |
| if (adc_hz != 0) { |
| u32_tmp = 256 * SymbolRate; |
| u32_tmp = u32_tmp / adc_hz; |
| } |
| stv0367_writereg(state, R367CAB_EQU_CRL_TFR, (u8)u32_tmp); |
| |
| /* Symbol rate and SRC gain calculation */ |
| adp_khz = (mclk_hz >> 1) / 1000;/* TRL works at half the system clock */ |
| if (adp_khz != 0) { |
| u32_tmp = SymbolRate; |
| u32_tmp1 = SymbolRate; |
| |
| if (u32_tmp < 2097152) { /* 2097152 = 2^21 */ |
| /* Symbol rate calculation */ |
| u32_tmp *= 2048; /* 2048 = 2^11 */ |
| u32_tmp = u32_tmp / adp_khz; |
| u32_tmp = u32_tmp * 16384; /* 16384 = 2^14 */ |
| u32_tmp /= 125 ; /* 125 = 1000/2^3 */ |
| u32_tmp = u32_tmp * 8; /* 8 = 2^3 */ |
| |
| /* SRC Gain Calculation */ |
| u32_tmp1 *= 2048; /* *2*2^10 */ |
| u32_tmp1 /= 439; /* *2/878 */ |
| u32_tmp1 *= 256; /* *2^8 */ |
| u32_tmp1 = u32_tmp1 / adp_khz; /* /(AdpClk in kHz) */ |
| u32_tmp1 *= QamSizeCorr * 9; /* *1000*corr factor */ |
| u32_tmp1 = u32_tmp1 / 10000000; |
| |
| } else if (u32_tmp < 4194304) { /* 4194304 = 2**22 */ |
| /* Symbol rate calculation */ |
| u32_tmp *= 1024 ; /* 1024 = 2**10 */ |
| u32_tmp = u32_tmp / adp_khz; |
| u32_tmp = u32_tmp * 16384; /* 16384 = 2**14 */ |
| u32_tmp /= 125 ; /* 125 = 1000/2**3 */ |
| u32_tmp = u32_tmp * 16; /* 16 = 2**4 */ |
| |
| /* SRC Gain Calculation */ |
| u32_tmp1 *= 1024; /* *2*2^9 */ |
| u32_tmp1 /= 439; /* *2/878 */ |
| u32_tmp1 *= 256; /* *2^8 */ |
| u32_tmp1 = u32_tmp1 / adp_khz; /* /(AdpClk in kHz)*/ |
| u32_tmp1 *= QamSizeCorr * 9; /* *1000*corr factor */ |
| u32_tmp1 = u32_tmp1 / 5000000; |
| } else if (u32_tmp < 8388607) { /* 8388607 = 2**23 */ |
| /* Symbol rate calculation */ |
| u32_tmp *= 512 ; /* 512 = 2**9 */ |
| u32_tmp = u32_tmp / adp_khz; |
| u32_tmp = u32_tmp * 16384; /* 16384 = 2**14 */ |
| u32_tmp /= 125 ; /* 125 = 1000/2**3 */ |
| u32_tmp = u32_tmp * 32; /* 32 = 2**5 */ |
| |
| /* SRC Gain Calculation */ |
| u32_tmp1 *= 512; /* *2*2^8 */ |
| u32_tmp1 /= 439; /* *2/878 */ |
| u32_tmp1 *= 256; /* *2^8 */ |
| u32_tmp1 = u32_tmp1 / adp_khz; /* /(AdpClk in kHz) */ |
| u32_tmp1 *= QamSizeCorr * 9; /* *1000*corr factor */ |
| u32_tmp1 = u32_tmp1 / 2500000; |
| } else { |
| /* Symbol rate calculation */ |
| u32_tmp *= 256 ; /* 256 = 2**8 */ |
| u32_tmp = u32_tmp / adp_khz; |
| u32_tmp = u32_tmp * 16384; /* 16384 = 2**13 */ |
| u32_tmp /= 125 ; /* 125 = 1000/2**3 */ |
| u32_tmp = u32_tmp * 64; /* 64 = 2**6 */ |
| |
| /* SRC Gain Calculation */ |
| u32_tmp1 *= 256; /* 2*2^7 */ |
| u32_tmp1 /= 439; /* *2/878 */ |
| u32_tmp1 *= 256; /* *2^8 */ |
| u32_tmp1 = u32_tmp1 / adp_khz; /* /(AdpClk in kHz) */ |
| u32_tmp1 *= QamSizeCorr * 9; /* *1000*corr factor */ |
| u32_tmp1 = u32_tmp1 / 1250000; |
| } |
| } |
| #if 0 |
| /* Filters' coefficients are calculated and written |
| into registers only if the filters are enabled */ |
| if (stv0367_readbits(state, F367CAB_ADJ_EN)) { |
| stv0367cab_SetIirAdjacentcoefficient(state, mclk_hz, |
| SymbolRate); |
| /* AllPass filter must be enabled |
| when the adjacents filter is used */ |
| stv0367_writebits(state, F367CAB_ALLPASSFILT_EN, 1); |
| stv0367cab_SetAllPasscoefficient(state, mclk_hz, SymbolRate); |
| } else |
| /* AllPass filter must be disabled |
| when the adjacents filter is not used */ |
| #endif |
| stv0367_writebits(state, F367CAB_ALLPASSFILT_EN, 0); |
| |
| stv0367_writereg(state, R367CAB_SRC_NCO_LL, u32_tmp); |
| stv0367_writereg(state, R367CAB_SRC_NCO_LH, (u32_tmp >> 8)); |
| stv0367_writereg(state, R367CAB_SRC_NCO_HL, (u32_tmp >> 16)); |
| stv0367_writereg(state, R367CAB_SRC_NCO_HH, (u32_tmp >> 24)); |
| |
| stv0367_writereg(state, R367CAB_IQDEM_GAIN_SRC_L, u32_tmp1 & 0x00ff); |
| stv0367_writebits(state, F367CAB_GAIN_SRC_HI, (u32_tmp1 >> 8) & 0x00ff); |
| |
| return SymbolRate ; |
| } |
| |
| static u32 stv0367cab_GetSymbolRate(struct stv0367_state *state, u32 mclk_hz) |
| { |
| u32 regsym; |
| u32 adp_khz; |
| |
| regsym = stv0367_readreg(state, R367CAB_SRC_NCO_LL) + |
| (stv0367_readreg(state, R367CAB_SRC_NCO_LH) << 8) + |
| (stv0367_readreg(state, R367CAB_SRC_NCO_HL) << 16) + |
| (stv0367_readreg(state, R367CAB_SRC_NCO_HH) << 24); |
| |
| adp_khz = (mclk_hz >> 1) / 1000;/* TRL works at half the system clock */ |
| |
| if (regsym < 134217728) { /* 134217728L = 2**27*/ |
| regsym = regsym * 32; /* 32 = 2**5 */ |
| regsym = regsym / 32768; /* 32768L = 2**15 */ |
| regsym = adp_khz * regsym; /* AdpClk in kHz */ |
| regsym = regsym / 128; /* 128 = 2**7 */ |
| regsym *= 125 ; /* 125 = 1000/2**3 */ |
| regsym /= 2048 ; /* 2048 = 2**11 */ |
| } else if (regsym < 268435456) { /* 268435456L = 2**28 */ |
| regsym = regsym * 16; /* 16 = 2**4 */ |
| regsym = regsym / 32768; /* 32768L = 2**15 */ |
| regsym = adp_khz * regsym; /* AdpClk in kHz */ |
| regsym = regsym / 128; /* 128 = 2**7 */ |
| regsym *= 125 ; /* 125 = 1000/2**3*/ |
| regsym /= 1024 ; /* 256 = 2**10*/ |
| } else if (regsym < 536870912) { /* 536870912L = 2**29*/ |
| regsym = regsym * 8; /* 8 = 2**3 */ |
| regsym = regsym / 32768; /* 32768L = 2**15 */ |
| regsym = adp_khz * regsym; /* AdpClk in kHz */ |
| regsym = regsym / 128; /* 128 = 2**7 */ |
| regsym *= 125 ; /* 125 = 1000/2**3 */ |
| regsym /= 512 ; /* 128 = 2**9 */ |
| } else { |
| regsym = regsym * 4; /* 4 = 2**2 */ |
| regsym = regsym / 32768; /* 32768L = 2**15 */ |
| regsym = adp_khz * regsym; /* AdpClk in kHz */ |
| regsym = regsym / 128; /* 128 = 2**7 */ |
| regsym *= 125 ; /* 125 = 1000/2**3 */ |
| regsym /= 256 ; /* 64 = 2**8 */ |
| } |
| |
| return regsym; |
| } |
| |
| static u32 stv0367cab_fsm_status(struct stv0367_state *state) |
| { |
| return stv0367_readbits(state, F367CAB_FSM_STATUS); |
| } |
| |
| static u32 stv0367cab_qamfec_lock(struct stv0367_state *state) |
| { |
| return stv0367_readbits(state, |
| (state->cab_state->qamfec_status_reg ? |
| state->cab_state->qamfec_status_reg : |
| F367CAB_QAMFEC_LOCK)); |
| } |
| |
| static |
| enum stv0367_cab_signal_type stv0367cab_fsm_signaltype(u32 qam_fsm_status) |
| { |
| enum stv0367_cab_signal_type signaltype = FE_CAB_NOAGC; |
| |
| switch (qam_fsm_status) { |
| case 1: |
| signaltype = FE_CAB_NOAGC; |
| break; |
| case 2: |
| signaltype = FE_CAB_NOTIMING; |
| break; |
| case 3: |
| signaltype = FE_CAB_TIMINGOK; |
| break; |
| case 4: |
| signaltype = FE_CAB_NOCARRIER; |
| break; |
| case 5: |
| signaltype = FE_CAB_CARRIEROK; |
| break; |
| case 7: |
| signaltype = FE_CAB_NOBLIND; |
| break; |
| case 8: |
| signaltype = FE_CAB_BLINDOK; |
| break; |
| case 10: |
| signaltype = FE_CAB_NODEMOD; |
| break; |
| case 11: |
| signaltype = FE_CAB_DEMODOK; |
| break; |
| case 12: |
| signaltype = FE_CAB_DEMODOK; |
| break; |
| case 13: |
| signaltype = FE_CAB_NODEMOD; |
| break; |
| case 14: |
| signaltype = FE_CAB_NOBLIND; |
| break; |
| case 15: |
| signaltype = FE_CAB_NOSIGNAL; |
| break; |
| default: |
| break; |
| } |
| |
| return signaltype; |
| } |
| |
| static int stv0367cab_read_status(struct dvb_frontend *fe, |
| enum fe_status *status) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| |
| dprintk("%s:\n", __func__); |
| |
| *status = 0; |
| |
| /* update cab_state->state from QAM_FSM_STATUS */ |
| state->cab_state->state = stv0367cab_fsm_signaltype( |
| stv0367cab_fsm_status(state)); |
| |
| if (stv0367cab_qamfec_lock(state)) { |
| *status = FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_VITERBI |
| | FE_HAS_SYNC | FE_HAS_LOCK; |
| dprintk("%s: stv0367 has locked\n", __func__); |
| } else { |
| if (state->cab_state->state > FE_CAB_NOSIGNAL) |
| *status |= FE_HAS_SIGNAL; |
| |
| if (state->cab_state->state > FE_CAB_NOCARRIER) |
| *status |= FE_HAS_CARRIER; |
| |
| if (state->cab_state->state >= FE_CAB_DEMODOK) |
| *status |= FE_HAS_VITERBI; |
| |
| if (state->cab_state->state >= FE_CAB_DATAOK) |
| *status |= FE_HAS_SYNC; |
| } |
| |
| return 0; |
| } |
| |
| static int stv0367cab_standby(struct dvb_frontend *fe, u8 standby_on) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| |
| dprintk("%s:\n", __func__); |
| |
| if (standby_on) { |
| stv0367_writebits(state, F367CAB_BYPASS_PLLXN, 0x03); |
| stv0367_writebits(state, F367CAB_STDBY_PLLXN, 0x01); |
| stv0367_writebits(state, F367CAB_STDBY, 1); |
| stv0367_writebits(state, F367CAB_STDBY_CORE, 1); |
| stv0367_writebits(state, F367CAB_EN_BUFFER_I, 0); |
| stv0367_writebits(state, F367CAB_EN_BUFFER_Q, 0); |
| stv0367_writebits(state, F367CAB_POFFQ, 1); |
| stv0367_writebits(state, F367CAB_POFFI, 1); |
| } else { |
| stv0367_writebits(state, F367CAB_STDBY_PLLXN, 0x00); |
| stv0367_writebits(state, F367CAB_BYPASS_PLLXN, 0x00); |
| stv0367_writebits(state, F367CAB_STDBY, 0); |
| stv0367_writebits(state, F367CAB_STDBY_CORE, 0); |
| stv0367_writebits(state, F367CAB_EN_BUFFER_I, 1); |
| stv0367_writebits(state, F367CAB_EN_BUFFER_Q, 1); |
| stv0367_writebits(state, F367CAB_POFFQ, 0); |
| stv0367_writebits(state, F367CAB_POFFI, 0); |
| } |
| |
| return 0; |
| } |
| |
| static int stv0367cab_sleep(struct dvb_frontend *fe) |
| { |
| return stv0367cab_standby(fe, 1); |
| } |
| |
| static int stv0367cab_init(struct dvb_frontend *fe) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| struct stv0367cab_state *cab_state = state->cab_state; |
| |
| dprintk("%s:\n", __func__); |
| |
| stv0367_write_table(state, |
| stv0367_deftabs[state->deftabs][STV0367_TAB_CAB]); |
| |
| switch (state->config->ts_mode) { |
| case STV0367_DVBCI_CLOCK: |
| dprintk("Setting TSMode = STV0367_DVBCI_CLOCK\n"); |
| stv0367_writebits(state, F367CAB_OUTFORMAT, 0x03); |
| break; |
| case STV0367_SERIAL_PUNCT_CLOCK: |
| case STV0367_SERIAL_CONT_CLOCK: |
| stv0367_writebits(state, F367CAB_OUTFORMAT, 0x01); |
| break; |
| case STV0367_PARALLEL_PUNCT_CLOCK: |
| case STV0367_OUTPUTMODE_DEFAULT: |
| stv0367_writebits(state, F367CAB_OUTFORMAT, 0x00); |
| break; |
| } |
| |
| switch (state->config->clk_pol) { |
| case STV0367_RISINGEDGE_CLOCK: |
| stv0367_writebits(state, F367CAB_CLK_POLARITY, 0x00); |
| break; |
| case STV0367_FALLINGEDGE_CLOCK: |
| case STV0367_CLOCKPOLARITY_DEFAULT: |
| stv0367_writebits(state, F367CAB_CLK_POLARITY, 0x01); |
| break; |
| } |
| |
| stv0367_writebits(state, F367CAB_SYNC_STRIP, 0x00); |
| |
| stv0367_writebits(state, F367CAB_CT_NBST, 0x01); |
| |
| stv0367_writebits(state, F367CAB_TS_SWAP, 0x01); |
| |
| stv0367_writebits(state, F367CAB_FIFO_BYPASS, 0x00); |
| |
| stv0367_writereg(state, R367CAB_ANACTRL, 0x00);/*PLL enabled and used */ |
| |
| cab_state->mclk = stv0367cab_get_mclk(fe, state->config->xtal); |
| cab_state->adc_clk = stv0367cab_get_adc_freq(fe, state->config->xtal); |
| |
| return 0; |
| } |
| static |
| enum stv0367_cab_signal_type stv0367cab_algo(struct stv0367_state *state, |
| struct dtv_frontend_properties *p) |
| { |
| struct stv0367cab_state *cab_state = state->cab_state; |
| enum stv0367_cab_signal_type signalType = FE_CAB_NOAGC; |
| u32 QAMFEC_Lock, QAM_Lock, u32_tmp, ifkhz, |
| LockTime, TRLTimeOut, AGCTimeOut, CRLSymbols, |
| CRLTimeOut, EQLTimeOut, DemodTimeOut, FECTimeOut; |
| u8 TrackAGCAccum; |
| s32 tmp; |
| |
| dprintk("%s:\n", __func__); |
| |
| stv0367_get_if_khz(state, &ifkhz); |
| |
| /* Timeouts calculation */ |
| /* A max lock time of 25 ms is allowed for delayed AGC */ |
| AGCTimeOut = 25; |
| /* 100000 symbols needed by the TRL as a maximum value */ |
| TRLTimeOut = 100000000 / p->symbol_rate; |
| /* CRLSymbols is the needed number of symbols to achieve a lock |
| within [-4%, +4%] of the symbol rate. |
| CRL timeout is calculated |
| for a lock within [-search_range, +search_range]. |
| EQL timeout can be changed depending on |
| the micro-reflections we want to handle. |
| A characterization must be performed |
| with these echoes to get new timeout values. |
| */ |
| switch (p->modulation) { |
| case QAM_16: |
| CRLSymbols = 150000; |
| EQLTimeOut = 100; |
| break; |
| case QAM_32: |
| CRLSymbols = 250000; |
| EQLTimeOut = 100; |
| break; |
| case QAM_64: |
| CRLSymbols = 200000; |
| EQLTimeOut = 100; |
| break; |
| case QAM_128: |
| CRLSymbols = 250000; |
| EQLTimeOut = 100; |
| break; |
| case QAM_256: |
| CRLSymbols = 250000; |
| EQLTimeOut = 100; |
| break; |
| default: |
| CRLSymbols = 200000; |
| EQLTimeOut = 100; |
| break; |
| } |
| #if 0 |
| if (pIntParams->search_range < 0) { |
| CRLTimeOut = (25 * CRLSymbols * |
| (-pIntParams->search_range / 1000)) / |
| (pIntParams->symbol_rate / 1000); |
| } else |
| #endif |
| CRLTimeOut = (25 * CRLSymbols * (cab_state->search_range / 1000)) / |
| (p->symbol_rate / 1000); |
| |
| CRLTimeOut = (1000 * CRLTimeOut) / p->symbol_rate; |
| /* Timeouts below 50ms are coerced */ |
| if (CRLTimeOut < 50) |
| CRLTimeOut = 50; |
| /* A maximum of 100 TS packets is needed to get FEC lock even in case |
| the spectrum inversion needs to be changed. |
| This is equal to 20 ms in case of the lowest symbol rate of 0.87Msps |
| */ |
| FECTimeOut = 20; |
| DemodTimeOut = AGCTimeOut + TRLTimeOut + CRLTimeOut + EQLTimeOut; |
| |
| dprintk("%s: DemodTimeOut=%d\n", __func__, DemodTimeOut); |
| |
| /* Reset the TRL to ensure nothing starts until the |
| AGC is stable which ensures a better lock time |
| */ |
| stv0367_writereg(state, R367CAB_CTRL_1, 0x04); |
| /* Set AGC accumulation time to minimum and lock threshold to maximum |
| in order to speed up the AGC lock */ |
| TrackAGCAccum = stv0367_readbits(state, F367CAB_AGC_ACCUMRSTSEL); |
| stv0367_writebits(state, F367CAB_AGC_ACCUMRSTSEL, 0x0); |
| /* Modulus Mapper is disabled */ |
| stv0367_writebits(state, F367CAB_MODULUSMAP_EN, 0); |
| /* Disable the sweep function */ |
| stv0367_writebits(state, F367CAB_SWEEP_EN, 0); |
| /* The sweep function is never used, Sweep rate must be set to 0 */ |
| /* Set the derotator frequency in Hz */ |
| stv0367cab_set_derot_freq(state, cab_state->adc_clk, |
| (1000 * (s32)ifkhz + cab_state->derot_offset)); |
| /* Disable the Allpass Filter when the symbol rate is out of range */ |
| if ((p->symbol_rate > 10800000) | (p->symbol_rate < 1800000)) { |
| stv0367_writebits(state, F367CAB_ADJ_EN, 0); |
| stv0367_writebits(state, F367CAB_ALLPASSFILT_EN, 0); |
| } |
| #if 0 |
| /* Check if the tuner is locked */ |
| tuner_lock = stv0367cab_tuner_get_status(fe); |
| if (tuner_lock == 0) |
| return FE_367CAB_NOTUNER; |
| #endif |
| /* Release the TRL to start demodulator acquisition */ |
| /* Wait for QAM lock */ |
| LockTime = 0; |
| stv0367_writereg(state, R367CAB_CTRL_1, 0x00); |
| do { |
| QAM_Lock = stv0367cab_fsm_status(state); |
| if ((LockTime >= (DemodTimeOut - EQLTimeOut)) && |
| (QAM_Lock == 0x04)) |
| /* |
| * We don't wait longer, the frequency/phase offset |
| * must be too big |
| */ |
| LockTime = DemodTimeOut; |
| else if ((LockTime >= (AGCTimeOut + TRLTimeOut)) && |
| (QAM_Lock == 0x02)) |
| /* |
| * We don't wait longer, either there is no signal or |
| * it is not the right symbol rate or it is an analog |
| * carrier |
| */ |
| { |
| LockTime = DemodTimeOut; |
| u32_tmp = stv0367_readbits(state, |
| F367CAB_AGC_PWR_WORD_LO) + |
| (stv0367_readbits(state, |
| F367CAB_AGC_PWR_WORD_ME) << 8) + |
| (stv0367_readbits(state, |
| F367CAB_AGC_PWR_WORD_HI) << 16); |
| if (u32_tmp >= 131072) |
| u32_tmp = 262144 - u32_tmp; |
| u32_tmp = u32_tmp / (1 << (11 - stv0367_readbits(state, |
| F367CAB_AGC_IF_BWSEL))); |
| |
| if (u32_tmp < stv0367_readbits(state, |
| F367CAB_AGC_PWRREF_LO) + |
| 256 * stv0367_readbits(state, |
| F367CAB_AGC_PWRREF_HI) - 10) |
| QAM_Lock = 0x0f; |
| } else { |
| usleep_range(10000, 20000); |
| LockTime += 10; |
| } |
| dprintk("QAM_Lock=0x%x LockTime=%d\n", QAM_Lock, LockTime); |
| tmp = stv0367_readreg(state, R367CAB_IT_STATUS1); |
| |
| dprintk("R367CAB_IT_STATUS1=0x%x\n", tmp); |
| |
| } while (((QAM_Lock != 0x0c) && (QAM_Lock != 0x0b)) && |
| (LockTime < DemodTimeOut)); |
| |
| dprintk("QAM_Lock=0x%x\n", QAM_Lock); |
| |
| tmp = stv0367_readreg(state, R367CAB_IT_STATUS1); |
| dprintk("R367CAB_IT_STATUS1=0x%x\n", tmp); |
| tmp = stv0367_readreg(state, R367CAB_IT_STATUS2); |
| dprintk("R367CAB_IT_STATUS2=0x%x\n", tmp); |
| |
| tmp = stv0367cab_get_derot_freq(state, cab_state->adc_clk); |
| dprintk("stv0367cab_get_derot_freq=0x%x\n", tmp); |
| |
| if ((QAM_Lock == 0x0c) || (QAM_Lock == 0x0b)) { |
| /* Wait for FEC lock */ |
| LockTime = 0; |
| do { |
| usleep_range(5000, 7000); |
| LockTime += 5; |
| QAMFEC_Lock = stv0367cab_qamfec_lock(state); |
| } while (!QAMFEC_Lock && (LockTime < FECTimeOut)); |
| } else |
| QAMFEC_Lock = 0; |
| |
| if (QAMFEC_Lock) { |
| signalType = FE_CAB_DATAOK; |
| cab_state->spect_inv = stv0367_readbits(state, |
| F367CAB_QUAD_INV); |
| #if 0 |
| /* not clear for me */ |
| if (ifkhz != 0) { |
| if (ifkhz > cab_state->adc_clk / 1000) { |
| cab_state->freq_khz = |
| FE_Cab_TunerGetFrequency(pIntParams->hTuner) |
| - stv0367cab_get_derot_freq(state, cab_state->adc_clk) |
| - cab_state->adc_clk / 1000 + ifkhz; |
| } else { |
| cab_state->freq_khz = |
| FE_Cab_TunerGetFrequency(pIntParams->hTuner) |
| - stv0367cab_get_derot_freq(state, cab_state->adc_clk) |
| + ifkhz; |
| } |
| } else { |
| cab_state->freq_khz = |
| FE_Cab_TunerGetFrequency(pIntParams->hTuner) + |
| stv0367cab_get_derot_freq(state, |
| cab_state->adc_clk) - |
| cab_state->adc_clk / 4000; |
| } |
| #endif |
| cab_state->symbol_rate = stv0367cab_GetSymbolRate(state, |
| cab_state->mclk); |
| cab_state->locked = 1; |
| |
| /* stv0367_setbits(state, F367CAB_AGC_ACCUMRSTSEL,7);*/ |
| } else |
| signalType = stv0367cab_fsm_signaltype(QAM_Lock); |
| |
| /* Set the AGC control values to tracking values */ |
| stv0367_writebits(state, F367CAB_AGC_ACCUMRSTSEL, TrackAGCAccum); |
| return signalType; |
| } |
| |
| static int stv0367cab_set_frontend(struct dvb_frontend *fe) |
| { |
| struct dtv_frontend_properties *p = &fe->dtv_property_cache; |
| struct stv0367_state *state = fe->demodulator_priv; |
| struct stv0367cab_state *cab_state = state->cab_state; |
| enum stv0367cab_mod QAMSize = 0; |
| |
| dprintk("%s: freq = %d, srate = %d\n", __func__, |
| p->frequency, p->symbol_rate); |
| |
| cab_state->derot_offset = 0; |
| |
| switch (p->modulation) { |
| case QAM_16: |
| QAMSize = FE_CAB_MOD_QAM16; |
| break; |
| case QAM_32: |
| QAMSize = FE_CAB_MOD_QAM32; |
| break; |
| case QAM_64: |
| QAMSize = FE_CAB_MOD_QAM64; |
| break; |
| case QAM_128: |
| QAMSize = FE_CAB_MOD_QAM128; |
| break; |
| case QAM_256: |
| QAMSize = FE_CAB_MOD_QAM256; |
| break; |
| default: |
| break; |
| } |
| |
| if (state->reinit_on_setfrontend) |
| stv0367cab_init(fe); |
| |
| /* Tuner Frequency Setting */ |
| if (fe->ops.tuner_ops.set_params) { |
| if (state->use_i2c_gatectrl && fe->ops.i2c_gate_ctrl) |
| fe->ops.i2c_gate_ctrl(fe, 1); |
| fe->ops.tuner_ops.set_params(fe); |
| if (state->use_i2c_gatectrl && fe->ops.i2c_gate_ctrl) |
| fe->ops.i2c_gate_ctrl(fe, 0); |
| } |
| |
| stv0367cab_SetQamSize( |
| state, |
| p->symbol_rate, |
| QAMSize); |
| |
| stv0367cab_set_srate(state, |
| cab_state->adc_clk, |
| cab_state->mclk, |
| p->symbol_rate, |
| QAMSize); |
| /* Search algorithm launch, [-1.1*RangeOffset, +1.1*RangeOffset] scan */ |
| cab_state->state = stv0367cab_algo(state, p); |
| return 0; |
| } |
| |
| static int stv0367cab_get_frontend(struct dvb_frontend *fe, |
| struct dtv_frontend_properties *p) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| struct stv0367cab_state *cab_state = state->cab_state; |
| u32 ifkhz = 0; |
| |
| enum stv0367cab_mod QAMSize; |
| |
| dprintk("%s:\n", __func__); |
| |
| stv0367_get_if_khz(state, &ifkhz); |
| p->symbol_rate = stv0367cab_GetSymbolRate(state, cab_state->mclk); |
| |
| QAMSize = stv0367_readbits(state, F367CAB_QAM_MODE); |
| switch (QAMSize) { |
| case FE_CAB_MOD_QAM16: |
| p->modulation = QAM_16; |
| break; |
| case FE_CAB_MOD_QAM32: |
| p->modulation = QAM_32; |
| break; |
| case FE_CAB_MOD_QAM64: |
| p->modulation = QAM_64; |
| break; |
| case FE_CAB_MOD_QAM128: |
| p->modulation = QAM_128; |
| break; |
| case FE_CAB_MOD_QAM256: |
| p->modulation = QAM_256; |
| break; |
| default: |
| break; |
| } |
| |
| p->frequency = stv0367_get_tuner_freq(fe); |
| |
| dprintk("%s: tuner frequency = %d\n", __func__, p->frequency); |
| |
| if (ifkhz == 0) { |
| p->frequency += |
| (stv0367cab_get_derot_freq(state, cab_state->adc_clk) - |
| cab_state->adc_clk / 4000); |
| return 0; |
| } |
| |
| if (ifkhz > cab_state->adc_clk / 1000) |
| p->frequency += (ifkhz |
| - stv0367cab_get_derot_freq(state, cab_state->adc_clk) |
| - cab_state->adc_clk / 1000); |
| else |
| p->frequency += (ifkhz |
| - stv0367cab_get_derot_freq(state, cab_state->adc_clk)); |
| |
| return 0; |
| } |
| |
| #if 0 |
| void stv0367cab_GetErrorCount(state, enum stv0367cab_mod QAMSize, |
| u32 symbol_rate, FE_367qam_Monitor *Monitor_results) |
| { |
| stv0367cab_OptimiseNByteAndGetBER(state, QAMSize, symbol_rate, Monitor_results); |
| stv0367cab_GetPacketsCount(state, Monitor_results); |
| |
| return; |
| } |
| |
| static int stv0367cab_read_ber(struct dvb_frontend *fe, u32 *ber) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| |
| return 0; |
| } |
| #endif |
| static s32 stv0367cab_get_rf_lvl(struct stv0367_state *state) |
| { |
| s32 rfLevel = 0; |
| s32 RfAgcPwm = 0, IfAgcPwm = 0; |
| u8 i; |
| |
| stv0367_writebits(state, F367CAB_STDBY_ADCGP, 0x0); |
| |
| RfAgcPwm = |
| (stv0367_readbits(state, F367CAB_RF_AGC1_LEVEL_LO) & 0x03) + |
| (stv0367_readbits(state, F367CAB_RF_AGC1_LEVEL_HI) << 2); |
| RfAgcPwm = 100 * RfAgcPwm / 1023; |
| |
| IfAgcPwm = |
| stv0367_readbits(state, F367CAB_AGC_IF_PWMCMD_LO) + |
| (stv0367_readbits(state, F367CAB_AGC_IF_PWMCMD_HI) << 8); |
| if (IfAgcPwm >= 2048) |
| IfAgcPwm -= 2048; |
| else |
| IfAgcPwm += 2048; |
| |
| IfAgcPwm = 100 * IfAgcPwm / 4095; |
| |
| /* For DTT75467 on NIM */ |
| if (RfAgcPwm < 90 && IfAgcPwm < 28) { |
| for (i = 0; i < RF_LOOKUP_TABLE_SIZE; i++) { |
| if (RfAgcPwm <= stv0367cab_RF_LookUp1[0][i]) { |
| rfLevel = (-1) * stv0367cab_RF_LookUp1[1][i]; |
| break; |
| } |
| } |
| if (i == RF_LOOKUP_TABLE_SIZE) |
| rfLevel = -56; |
| } else { /*if IF AGC>10*/ |
| for (i = 0; i < RF_LOOKUP_TABLE2_SIZE; i++) { |
| if (IfAgcPwm <= stv0367cab_RF_LookUp2[0][i]) { |
| rfLevel = (-1) * stv0367cab_RF_LookUp2[1][i]; |
| break; |
| } |
| } |
| if (i == RF_LOOKUP_TABLE2_SIZE) |
| rfLevel = -72; |
| } |
| return rfLevel; |
| } |
| |
| static int stv0367cab_read_strength(struct dvb_frontend *fe, u16 *strength) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| |
| s32 signal = stv0367cab_get_rf_lvl(state); |
| |
| dprintk("%s: signal=%d dBm\n", __func__, signal); |
| |
| if (signal <= -72) |
| *strength = 65535; |
| else |
| *strength = (22 + signal) * (-1311); |
| |
| dprintk("%s: strength=%d\n", __func__, (*strength)); |
| |
| return 0; |
| } |
| |
| static int stv0367cab_snr_power(struct dvb_frontend *fe) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| enum stv0367cab_mod QAMSize; |
| |
| QAMSize = stv0367_readbits(state, F367CAB_QAM_MODE); |
| switch (QAMSize) { |
| case FE_CAB_MOD_QAM4: |
| return 21904; |
| case FE_CAB_MOD_QAM16: |
| return 20480; |
| case FE_CAB_MOD_QAM32: |
| return 23040; |
| case FE_CAB_MOD_QAM64: |
| return 21504; |
| case FE_CAB_MOD_QAM128: |
| return 23616; |
| case FE_CAB_MOD_QAM256: |
| return 21760; |
| case FE_CAB_MOD_QAM1024: |
| return 21280; |
| default: |
| break; |
| } |
| |
| return 1; |
| } |
| |
| static int stv0367cab_snr_readreg(struct dvb_frontend *fe, int avgdiv) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| u32 regval = 0; |
| int i; |
| |
| for (i = 0; i < 10; i++) { |
| regval += (stv0367_readbits(state, F367CAB_SNR_LO) |
| + 256 * stv0367_readbits(state, F367CAB_SNR_HI)); |
| } |
| |
| if (avgdiv) |
| regval /= 10; |
| |
| return regval; |
| } |
| |
| static int stv0367cab_read_snr(struct dvb_frontend *fe, u16 *snr) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| u32 noisepercentage; |
| u32 regval = 0, temp = 0; |
| int power; |
| |
| power = stv0367cab_snr_power(fe); |
| regval = stv0367cab_snr_readreg(fe, 1); |
| |
| if (regval != 0) { |
| temp = power |
| * (1 << (3 + stv0367_readbits(state, F367CAB_SNR_PER))); |
| temp /= regval; |
| } |
| |
| /* table values, not needed to calculate logarithms */ |
| if (temp >= 5012) |
| noisepercentage = 100; |
| else if (temp >= 3981) |
| noisepercentage = 93; |
| else if (temp >= 3162) |
| noisepercentage = 86; |
| else if (temp >= 2512) |
| noisepercentage = 79; |
| else if (temp >= 1995) |
| noisepercentage = 72; |
| else if (temp >= 1585) |
| noisepercentage = 65; |
| else if (temp >= 1259) |
| noisepercentage = 58; |
| else if (temp >= 1000) |
| noisepercentage = 50; |
| else if (temp >= 794) |
| noisepercentage = 43; |
| else if (temp >= 501) |
| noisepercentage = 36; |
| else if (temp >= 316) |
| noisepercentage = 29; |
| else if (temp >= 200) |
| noisepercentage = 22; |
| else if (temp >= 158) |
| noisepercentage = 14; |
| else if (temp >= 126) |
| noisepercentage = 7; |
| else |
| noisepercentage = 0; |
| |
| dprintk("%s: noisepercentage=%d\n", __func__, noisepercentage); |
| |
| *snr = (noisepercentage * 65535) / 100; |
| |
| return 0; |
| } |
| |
| static int stv0367cab_read_ucblcks(struct dvb_frontend *fe, u32 *ucblocks) |
| { |
| struct stv0367_state *state = fe->demodulator_priv; |
| int corrected, tscount; |
| |
| *ucblocks = (stv0367_readreg(state, R367CAB_RS_COUNTER_5) << 8) |
| | stv0367_readreg(state, R367CAB_RS_COUNTER_4); |
| corrected = (stv0367_readreg(state, R367CAB_RS_COUNTER_3) << 8) |
| | stv0367_readreg(state, R367CAB_RS_COUNTER_2); |
| tscount = (stv0367_readreg(state, R367CAB_RS_COUNTER_2) << 8) |
| | stv0367_readreg(state, R367CAB_RS_COUNTER_1); |
| |
| dprintk("%s: uncorrected blocks=%d corrected blocks=%d tscount=%d\n", |
| __func__, *ucblocks, corrected, tscount); |
| |
| return 0; |
| }; |
| |
| static const struct dvb_frontend_ops stv0367cab_ops = { |
| .delsys = { SYS_DVBC_ANNEX_A }, |
| .info = { |
| .name = "ST STV0367 DVB-C", |
| .frequency_min_hz = 47 * MHz, |
| .frequency_max_hz = 862 * MHz, |
| .frequency_stepsize_hz = 62500, |
| .symbol_rate_min = 870000, |
| .symbol_rate_max = 11700000, |
| .caps = 0x400 |/* FE_CAN_QAM_4 */ |
| FE_CAN_QAM_16 | FE_CAN_QAM_32 | |
| FE_CAN_QAM_64 | FE_CAN_QAM_128 | |
| FE_CAN_QAM_256 | FE_CAN_FEC_AUTO |
| }, |
| .release = stv0367_release, |
| .init = stv0367cab_init, |
| .sleep = stv0367cab_sleep, |
| .i2c_gate_ctrl = stv0367cab_gate_ctrl, |
| .set_frontend = stv0367cab_set_frontend, |
| .get_frontend = stv0367cab_get_frontend, |
| .read_status = stv0367cab_read_status, |
| /* .read_ber = stv0367cab_read_ber, */ |
| .read_signal_strength = stv0367cab_read_strength, |
| .read_snr = stv0367cab_read_snr, |
| .read_ucblocks = stv0367cab_read_ucblcks, |
| .get_tune_settings = stv0367_get_tune_settings, |
| }; |
| |
| struct dvb_frontend *stv0367cab_attach(const struct stv0367_config *config, |
| struct i2c_adapter *i2c) |
| { |
| struct stv0367_state *state = NULL; |
| struct stv0367cab_state *cab_state = NULL; |
|