diff options
Diffstat (limited to 'drivers/media/dvb/frontends/stv0900_core.c')
| -rw-r--r-- | drivers/media/dvb/frontends/stv0900_core.c | 1949 |
1 files changed, 1949 insertions, 0 deletions
diff --git a/drivers/media/dvb/frontends/stv0900_core.c b/drivers/media/dvb/frontends/stv0900_core.c new file mode 100644 index 00000000000..8499bcf7f25 --- /dev/null +++ b/drivers/media/dvb/frontends/stv0900_core.c @@ -0,0 +1,1949 @@ +/* + * stv0900_core.c + * + * Driver for ST STV0900 satellite demodulator IC. + * + * Copyright (C) ST Microelectronics. + * Copyright (C) 2009 NetUP Inc. + * Copyright (C) 2009 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/string.h> +#include <linux/slab.h> +#include <linux/i2c.h> + +#include "stv0900.h" +#include "stv0900_reg.h" +#include "stv0900_priv.h" +#include "stv0900_init.h" + +static int stvdebug = 1; +module_param_named(debug, stvdebug, int, 0644); + +/* internal params node */ +struct stv0900_inode { + /* pointer for internal params, one for each pair of demods */ + struct stv0900_internal *internal; + struct stv0900_inode *next_inode; +}; + +/* first internal params */ +static struct stv0900_inode *stv0900_first_inode; + +/* find chip by i2c adapter and i2c address */ +static struct stv0900_inode *find_inode(struct i2c_adapter *i2c_adap, + u8 i2c_addr) +{ + struct stv0900_inode *temp_chip = stv0900_first_inode; + + if (temp_chip != NULL) { + /* + Search of the last stv0900 chip or + find it by i2c adapter and i2c address */ + while ((temp_chip != NULL) && + ((temp_chip->internal->i2c_adap != i2c_adap) || + (temp_chip->internal->i2c_addr != i2c_addr))) + + temp_chip = temp_chip->next_inode; + + } + + return temp_chip; +} + +/* deallocating chip */ +static void remove_inode(struct stv0900_internal *internal) +{ + struct stv0900_inode *prev_node = stv0900_first_inode; + struct stv0900_inode *del_node = find_inode(internal->i2c_adap, + internal->i2c_addr); + + if (del_node != NULL) { + if (del_node == stv0900_first_inode) { + stv0900_first_inode = del_node->next_inode; + } else { + while (prev_node->next_inode != del_node) + prev_node = prev_node->next_inode; + + if (del_node->next_inode == NULL) + prev_node->next_inode = NULL; + else + prev_node->next_inode = + prev_node->next_inode->next_inode; + } + + kfree(del_node); + } +} + +/* allocating new chip */ +static struct stv0900_inode *append_internal(struct stv0900_internal *internal) +{ + struct stv0900_inode *new_node = stv0900_first_inode; + + if (new_node == NULL) { + new_node = kmalloc(sizeof(struct stv0900_inode), GFP_KERNEL); + stv0900_first_inode = new_node; + } else { + while (new_node->next_inode != NULL) + new_node = new_node->next_inode; + + new_node->next_inode = kmalloc(sizeof(struct stv0900_inode), GFP_KERNEL); + if (new_node->next_inode != NULL) + new_node = new_node->next_inode; + else + new_node = NULL; + } + + if (new_node != NULL) { + new_node->internal = internal; + new_node->next_inode = NULL; + } + + return new_node; +} + +s32 ge2comp(s32 a, s32 width) +{ + if (width == 32) + return a; + else + return (a >= (1 << (width - 1))) ? (a - (1 << width)) : a; +} + +void stv0900_write_reg(struct stv0900_internal *i_params, u16 reg_addr, + u8 reg_data) +{ + u8 data[3]; + int ret; + struct i2c_msg i2cmsg = { + .addr = i_params->i2c_addr, + .flags = 0, + .len = 3, + .buf = data, + }; + + data[0] = MSB(reg_addr); + data[1] = LSB(reg_addr); + data[2] = reg_data; + + ret = i2c_transfer(i_params->i2c_adap, &i2cmsg, 1); + if (ret != 1) + dprintk(KERN_ERR "%s: i2c error %d\n", __func__, ret); +} + +u8 stv0900_read_reg(struct stv0900_internal *i_params, u16 reg_addr) +{ + u8 data[2]; + int ret; + struct i2c_msg i2cmsg = { + .addr = i_params->i2c_addr, + .flags = 0, + .len = 2, + .buf = data, + }; + + data[0] = MSB(reg_addr); + data[1] = LSB(reg_addr); + + ret = i2c_transfer(i_params->i2c_adap, &i2cmsg, 1); + if (ret != 1) + dprintk(KERN_ERR "%s: i2c error %d\n", __func__, ret); + + i2cmsg.flags = I2C_M_RD; + i2cmsg.len = 1; + ret = i2c_transfer(i_params->i2c_adap, &i2cmsg, 1); + if (ret != 1) + dprintk(KERN_ERR "%s: i2c error %d\n", __func__, ret); + + return data[0]; +} + +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); +} + +void stv0900_write_bits(struct stv0900_internal *i_params, u32 label, u8 val) +{ + u8 reg, mask, pos; + + reg = stv0900_read_reg(i_params, (label >> 16) & 0xffff); + extract_mask_pos(label, &mask, &pos); + + val = mask & (val << pos); + + reg = (reg & (~mask)) | val; + stv0900_write_reg(i_params, (label >> 16) & 0xffff, reg); + +} + +u8 stv0900_get_bits(struct stv0900_internal *i_params, u32 label) +{ + u8 val = 0xff; + u8 mask, pos; + + extract_mask_pos(label, &mask, &pos); + + val = stv0900_read_reg(i_params, label >> 16); + val = (val & mask) >> pos; + + return val; +} + +enum fe_stv0900_error stv0900_initialize(struct stv0900_internal *i_params) +{ + s32 i; + enum fe_stv0900_error error; + + if (i_params != NULL) { + i_params->chip_id = stv0900_read_reg(i_params, R0900_MID); + if (i_params->errs == STV0900_NO_ERROR) { + /*Startup sequence*/ + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x5c); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x5c); + stv0900_write_reg(i_params, R0900_P1_TNRCFG, 0x6c); + stv0900_write_reg(i_params, R0900_P2_TNRCFG, 0x6f); + stv0900_write_reg(i_params, R0900_P1_I2CRPT, 0x24); + stv0900_write_reg(i_params, R0900_P2_I2CRPT, 0x24); + stv0900_write_reg(i_params, R0900_NCOARSE, 0x13); + msleep(3); + stv0900_write_reg(i_params, R0900_I2CCFG, 0x08); + + switch (i_params->clkmode) { + case 0: + case 2: + stv0900_write_reg(i_params, R0900_SYNTCTRL, 0x20 + | i_params->clkmode); + break; + default: + /* preserve SELOSCI bit */ + i = 0x02 & stv0900_read_reg(i_params, R0900_SYNTCTRL); + stv0900_write_reg(i_params, R0900_SYNTCTRL, 0x20 | i); + break; + } + + msleep(3); + for (i = 0; i < 182; i++) + stv0900_write_reg(i_params, STV0900_InitVal[i][0], STV0900_InitVal[i][1]); + + if (stv0900_read_reg(i_params, R0900_MID) >= 0x20) { + stv0900_write_reg(i_params, R0900_TSGENERAL, 0x0c); + for (i = 0; i < 32; i++) + stv0900_write_reg(i_params, STV0900_Cut20_AddOnVal[i][0], STV0900_Cut20_AddOnVal[i][1]); + } + + stv0900_write_reg(i_params, R0900_P1_FSPYCFG, 0x6c); + stv0900_write_reg(i_params, R0900_P2_FSPYCFG, 0x6c); + stv0900_write_reg(i_params, R0900_TSTRES0, 0x80); + stv0900_write_reg(i_params, R0900_TSTRES0, 0x00); + } + error = i_params->errs; + } else + error = STV0900_INVALID_HANDLE; + + return error; + +} + +u32 stv0900_get_mclk_freq(struct stv0900_internal *i_params, u32 ext_clk) +{ + u32 mclk = 90000000, div = 0, ad_div = 0; + + div = stv0900_get_bits(i_params, F0900_M_DIV); + ad_div = ((stv0900_get_bits(i_params, F0900_SELX1RATIO) == 1) ? 4 : 6); + + mclk = (div + 1) * ext_clk / ad_div; + + dprintk(KERN_INFO "%s: Calculated Mclk = %d\n", __func__, mclk); + + return mclk; +} + +enum fe_stv0900_error stv0900_set_mclk(struct stv0900_internal *i_params, u32 mclk) +{ + enum fe_stv0900_error error = STV0900_NO_ERROR; + u32 m_div, clk_sel; + + dprintk(KERN_INFO "%s: Mclk set to %d, Quartz = %d\n", __func__, mclk, + i_params->quartz); + + if (i_params == NULL) + error = STV0900_INVALID_HANDLE; + else { + if (i_params->errs) + error = STV0900_I2C_ERROR; + else { + clk_sel = ((stv0900_get_bits(i_params, F0900_SELX1RATIO) == 1) ? 4 : 6); + m_div = ((clk_sel * mclk) / i_params->quartz) - 1; + stv0900_write_bits(i_params, F0900_M_DIV, m_div); + i_params->mclk = stv0900_get_mclk_freq(i_params, + i_params->quartz); + + /*Set the DiseqC frequency to 22KHz */ + /* + Formula: + DiseqC_TX_Freq= MasterClock/(32*F22TX_Reg) + DiseqC_RX_Freq= MasterClock/(32*F22RX_Reg) + */ + m_div = i_params->mclk / 704000; + stv0900_write_reg(i_params, R0900_P1_F22TX, m_div); + stv0900_write_reg(i_params, R0900_P1_F22RX, m_div); + + stv0900_write_reg(i_params, R0900_P2_F22TX, m_div); + stv0900_write_reg(i_params, R0900_P2_F22RX, m_div); + + if ((i_params->errs)) + error = STV0900_I2C_ERROR; + } + } + + return error; +} + +u32 stv0900_get_err_count(struct stv0900_internal *i_params, int cntr, + enum fe_stv0900_demod_num demod) +{ + u32 lsb, msb, hsb, err_val; + s32 err1field_hsb, err1field_msb, err1field_lsb; + s32 err2field_hsb, err2field_msb, err2field_lsb; + + dmd_reg(err1field_hsb, F0900_P1_ERR_CNT12, F0900_P2_ERR_CNT12); + dmd_reg(err1field_msb, F0900_P1_ERR_CNT11, F0900_P2_ERR_CNT11); + dmd_reg(err1field_lsb, F0900_P1_ERR_CNT10, F0900_P2_ERR_CNT10); + + dmd_reg(err2field_hsb, F0900_P1_ERR_CNT22, F0900_P2_ERR_CNT22); + dmd_reg(err2field_msb, F0900_P1_ERR_CNT21, F0900_P2_ERR_CNT21); + dmd_reg(err2field_lsb, F0900_P1_ERR_CNT20, F0900_P2_ERR_CNT20); + + switch (cntr) { + case 0: + default: + hsb = stv0900_get_bits(i_params, err1field_hsb); + msb = stv0900_get_bits(i_params, err1field_msb); + lsb = stv0900_get_bits(i_params, err1field_lsb); + break; + case 1: + hsb = stv0900_get_bits(i_params, err2field_hsb); + msb = stv0900_get_bits(i_params, err2field_msb); + lsb = stv0900_get_bits(i_params, err2field_lsb); + break; + } + + err_val = (hsb << 16) + (msb << 8) + (lsb); + + return err_val; +} + +static int stv0900_i2c_gate_ctrl(struct dvb_frontend *fe, int enable) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + + u32 fi2c; + + dmd_reg(fi2c, F0900_P1_I2CT_ON, F0900_P2_I2CT_ON); + if (enable) + stv0900_write_bits(i_params, fi2c, 1); + + return 0; +} + +static void stv0900_set_ts_parallel_serial(struct stv0900_internal *i_params, + enum fe_stv0900_clock_type path1_ts, + enum fe_stv0900_clock_type path2_ts) +{ + + dprintk(KERN_INFO "%s\n", __func__); + + if (i_params->chip_id >= 0x20) { + switch (path1_ts) { + case STV0900_PARALLEL_PUNCT_CLOCK: + case STV0900_DVBCI_CLOCK: + switch (path2_ts) { + case STV0900_SERIAL_PUNCT_CLOCK: + case STV0900_SERIAL_CONT_CLOCK: + default: + stv0900_write_reg(i_params, R0900_TSGENERAL, + 0x00); + break; + case STV0900_PARALLEL_PUNCT_CLOCK: + case STV0900_DVBCI_CLOCK: + stv0900_write_reg(i_params, R0900_TSGENERAL, + 0x06); + stv0900_write_bits(i_params, + F0900_P1_TSFIFO_MANSPEED, 3); + stv0900_write_bits(i_params, + F0900_P2_TSFIFO_MANSPEED, 0); + stv0900_write_reg(i_params, + R0900_P1_TSSPEED, 0x14); + stv0900_write_reg(i_params, + R0900_P2_TSSPEED, 0x28); + break; + } + break; + case STV0900_SERIAL_PUNCT_CLOCK: + case STV0900_SERIAL_CONT_CLOCK: + default: + switch (path2_ts) { + case STV0900_SERIAL_PUNCT_CLOCK: + case STV0900_SERIAL_CONT_CLOCK: + default: + stv0900_write_reg(i_params, + R0900_TSGENERAL, 0x0C); + break; + case STV0900_PARALLEL_PUNCT_CLOCK: + case STV0900_DVBCI_CLOCK: + stv0900_write_reg(i_params, + R0900_TSGENERAL, 0x0A); + dprintk(KERN_INFO "%s: 0x0a\n", __func__); + break; + } + break; + } + } else { + switch (path1_ts) { + case STV0900_PARALLEL_PUNCT_CLOCK: + case STV0900_DVBCI_CLOCK: + switch (path2_ts) { + case STV0900_SERIAL_PUNCT_CLOCK: + case STV0900_SERIAL_CONT_CLOCK: + default: + stv0900_write_reg(i_params, R0900_TSGENERAL1X, + 0x10); + break; + case STV0900_PARALLEL_PUNCT_CLOCK: + case STV0900_DVBCI_CLOCK: + stv0900_write_reg(i_params, R0900_TSGENERAL1X, + 0x16); + stv0900_write_bits(i_params, + F0900_P1_TSFIFO_MANSPEED, 3); + stv0900_write_bits(i_params, + F0900_P2_TSFIFO_MANSPEED, 0); + stv0900_write_reg(i_params, R0900_P1_TSSPEED, + 0x14); + stv0900_write_reg(i_params, R0900_P2_TSSPEED, + 0x28); + break; + } + + break; + case STV0900_SERIAL_PUNCT_CLOCK: + case STV0900_SERIAL_CONT_CLOCK: + default: + switch (path2_ts) { + case STV0900_SERIAL_PUNCT_CLOCK: + case STV0900_SERIAL_CONT_CLOCK: + default: + stv0900_write_reg(i_params, R0900_TSGENERAL1X, + 0x14); + break; + case STV0900_PARALLEL_PUNCT_CLOCK: + case STV0900_DVBCI_CLOCK: + stv0900_write_reg(i_params, R0900_TSGENERAL1X, + 0x12); + dprintk(KERN_INFO "%s: 0x12\n", __func__); + break; + } + + break; + } + } + + switch (path1_ts) { + case STV0900_PARALLEL_PUNCT_CLOCK: + stv0900_write_bits(i_params, F0900_P1_TSFIFO_SERIAL, 0x00); + stv0900_write_bits(i_params, F0900_P1_TSFIFO_DVBCI, 0x00); + break; + case STV0900_DVBCI_CLOCK: + stv0900_write_bits(i_params, F0900_P1_TSFIFO_SERIAL, 0x00); + stv0900_write_bits(i_params, F0900_P1_TSFIFO_DVBCI, 0x01); + break; + case STV0900_SERIAL_PUNCT_CLOCK: + stv0900_write_bits(i_params, F0900_P1_TSFIFO_SERIAL, 0x01); + stv0900_write_bits(i_params, F0900_P1_TSFIFO_DVBCI, 0x00); + break; + case STV0900_SERIAL_CONT_CLOCK: + stv0900_write_bits(i_params, F0900_P1_TSFIFO_SERIAL, 0x01); + stv0900_write_bits(i_params, F0900_P1_TSFIFO_DVBCI, 0x01); + break; + default: + break; + } + + switch (path2_ts) { + case STV0900_PARALLEL_PUNCT_CLOCK: + stv0900_write_bits(i_params, F0900_P2_TSFIFO_SERIAL, 0x00); + stv0900_write_bits(i_params, F0900_P2_TSFIFO_DVBCI, 0x00); + break; + case STV0900_DVBCI_CLOCK: + stv0900_write_bits(i_params, F0900_P2_TSFIFO_SERIAL, 0x00); + stv0900_write_bits(i_params, F0900_P2_TSFIFO_DVBCI, 0x01); + break; + case STV0900_SERIAL_PUNCT_CLOCK: + stv0900_write_bits(i_params, F0900_P2_TSFIFO_SERIAL, 0x01); + stv0900_write_bits(i_params, F0900_P2_TSFIFO_DVBCI, 0x00); + break; + case STV0900_SERIAL_CONT_CLOCK: + stv0900_write_bits(i_params, F0900_P2_TSFIFO_SERIAL, 0x01); + stv0900_write_bits(i_params, F0900_P2_TSFIFO_DVBCI, 0x01); + break; + default: + break; + } + + stv0900_write_bits(i_params, F0900_P2_RST_HWARE, 1); + stv0900_write_bits(i_params, F0900_P2_RST_HWARE, 0); + stv0900_write_bits(i_params, F0900_P1_RST_HWARE, 1); + stv0900_write_bits(i_params, F0900_P1_RST_HWARE, 0); +} + +void stv0900_set_tuner(struct dvb_frontend *fe, u32 frequency, + u32 bandwidth) +{ + struct dvb_frontend_ops *frontend_ops = NULL; + struct dvb_tuner_ops *tuner_ops = NULL; + + if (&fe->ops) + frontend_ops = &fe->ops; + + if (&frontend_ops->tuner_ops) + tuner_ops = &frontend_ops->tuner_ops; + + if (tuner_ops->set_frequency) { + if ((tuner_ops->set_frequency(fe, frequency)) < 0) + dprintk("%s: Invalid parameter\n", __func__); + else + dprintk("%s: Frequency=%d\n", __func__, frequency); + + } + + if (tuner_ops->set_bandwidth) { + if ((tuner_ops->set_bandwidth(fe, bandwidth)) < 0) + dprintk("%s: Invalid parameter\n", __func__); + else + dprintk("%s: Bandwidth=%d\n", __func__, bandwidth); + + } +} + +void stv0900_set_bandwidth(struct dvb_frontend *fe, u32 bandwidth) +{ + struct dvb_frontend_ops *frontend_ops = NULL; + struct dvb_tuner_ops *tuner_ops = NULL; + + if (&fe->ops) + frontend_ops = &fe->ops; + + if (&frontend_ops->tuner_ops) + tuner_ops = &frontend_ops->tuner_ops; + + if (tuner_ops->set_bandwidth) { + if ((tuner_ops->set_bandwidth(fe, bandwidth)) < 0) + dprintk("%s: Invalid parameter\n", __func__); + else + dprintk("%s: Bandwidth=%d\n", __func__, bandwidth); + + } +} + +static s32 stv0900_get_rf_level(struct stv0900_internal *i_params, + const struct stv0900_table *lookup, + enum fe_stv0900_demod_num demod) +{ + s32 agc_gain = 0, + imin, + imax, + i, + rf_lvl = 0; + + dprintk(KERN_INFO "%s\n", __func__); + + if ((lookup != NULL) && lookup->size) { + switch (demod) { + case STV0900_DEMOD_1: + default: + agc_gain = MAKEWORD(stv0900_get_bits(i_params, F0900_P1_AGCIQ_VALUE1), + stv0900_get_bits(i_params, F0900_P1_AGCIQ_VALUE0)); + break; + case STV0900_DEMOD_2: + agc_gain = MAKEWORD(stv0900_get_bits(i_params, F0900_P2_AGCIQ_VALUE1), + stv0900_get_bits(i_params, F0900_P2_AGCIQ_VALUE0)); + break; + } + + imin = 0; + imax = lookup->size - 1; + if (INRANGE(lookup->table[imin].regval, agc_gain, lookup->table[imax].regval)) { + while ((imax - imin) > 1) { + i = (imax + imin) >> 1; + + if (INRANGE(lookup->table[imin].regval, agc_gain, lookup->table[i].regval)) + imax = i; + else + imin = i; + } + + rf_lvl = (((s32)agc_gain - lookup->table[imin].regval) + * (lookup->table[imax].realval - lookup->table[imin].realval) + / (lookup->table[imax].regval - lookup->table[imin].regval)) + + lookup->table[imin].realval; + } else if (agc_gain > lookup->table[0].regval) + rf_lvl = 5; + else if (agc_gain < lookup->table[lookup->size-1].regval) + rf_lvl = -100; + + } + + dprintk(KERN_INFO "%s: RFLevel = %d\n", __func__, rf_lvl); + + return rf_lvl; +} + +static int stv0900_read_signal_strength(struct dvb_frontend *fe, u16 *strength) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *internal = state->internal; + s32 rflevel = stv0900_get_rf_level(internal, &stv0900_rf, + state->demod); + + *strength = (rflevel + 100) * (16383 / 105); + + return 0; +} + + +static s32 stv0900_carr_get_quality(struct dvb_frontend *fe, + const struct stv0900_table *lookup) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + + s32 c_n = -100, + regval, imin, imax, + i, + lock_flag_field, + noise_field1, + noise_field0; + + dprintk(KERN_INFO "%s\n", __func__); + + dmd_reg(lock_flag_field, F0900_P1_LOCK_DEFINITIF, + F0900_P2_LOCK_DEFINITIF); + if (stv0900_get_standard(fe, demod) == STV0900_DVBS2_STANDARD) { + dmd_reg(noise_field1, F0900_P1_NOSPLHT_NORMED1, + F0900_P2_NOSPLHT_NORMED1); + dmd_reg(noise_field0, F0900_P1_NOSPLHT_NORMED0, + F0900_P2_NOSPLHT_NORMED0); + } else { + dmd_reg(noise_field1, F0900_P1_NOSDATAT_NORMED1, + F0900_P2_NOSDATAT_NORMED1); + dmd_reg(noise_field0, F0900_P1_NOSDATAT_NORMED0, + F0900_P2_NOSDATAT_NORMED0); + } + + if (stv0900_get_bits(i_params, lock_flag_field)) { + if ((lookup != NULL) && lookup->size) { + regval = 0; + msleep(5); + for (i = 0; i < 16; i++) { + regval += MAKEWORD(stv0900_get_bits(i_params, + noise_field1), + stv0900_get_bits(i_params, + noise_field0)); + msleep(1); + } + + regval /= 16; + imin = 0; + imax = lookup->size - 1; + if (INRANGE(lookup->table[imin].regval, + regval, + lookup->table[imax].regval)) { + while ((imax - imin) > 1) { + i = (imax + imin) >> 1; + if (INRANGE(lookup->table[imin].regval, + regval, + lookup->table[i].regval)) + imax = i; + else + imin = i; + } + + c_n = ((regval - lookup->table[imin].regval) + * (lookup->table[imax].realval + - lookup->table[imin].realval) + / (lookup->table[imax].regval + - lookup->table[imin].regval)) + + lookup->table[imin].realval; + } else if (regval < lookup->table[imin].regval) + c_n = 1000; + } + } + + return c_n; +} + +static int stv0900_read_snr(struct dvb_frontend *fe, u16 *snr) +{ + *snr = stv0900_carr_get_quality(fe, + (const struct stv0900_table *)&stv0900_s2_cn); + *snr += 30; + *snr *= (16383 / 1030); + + return 0; +} + +static u32 stv0900_get_ber(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + u32 ber = 10000000, i; + s32 dmd_state_reg; + s32 demod_state; + s32 vstatus_reg; + s32 prvit_field; + s32 pdel_status_reg; + s32 pdel_lock_field; + + dmd_reg(dmd_state_reg, F0900_P1_HEADER_MODE, F0900_P2_HEADER_MODE); + dmd_reg(vstatus_reg, R0900_P1_VSTATUSVIT, R0900_P2_VSTATUSVIT); + dmd_reg(prvit_field, F0900_P1_PRFVIT, F0900_P2_PRFVIT); + dmd_reg(pdel_status_reg, R0900_P1_PDELSTATUS1, R0900_P2_PDELSTATUS1); + dmd_reg(pdel_lock_field, F0900_P1_PKTDELIN_LOCK, + F0900_P2_PKTDELIN_LOCK); + + demod_state = stv0900_get_bits(i_params, dmd_state_reg); + + switch (demod_state) { + case STV0900_SEARCH: + case STV0900_PLH_DETECTED: + default: + ber = 10000000; + break; + case STV0900_DVBS_FOUND: + ber = 0; + for (i = 0; i < 5; i++) { + msleep(5); + ber += stv0900_get_err_count(i_params, 0, demod); + } + + ber /= 5; + if (stv0900_get_bits(i_params, prvit_field)) { + ber *= 9766; + ber = ber >> 13; + } + + break; + case STV0900_DVBS2_FOUND: + ber = 0; + for (i = 0; i < 5; i++) { + msleep(5); + ber += stv0900_get_err_count(i_params, 0, demod); + } + + ber /= 5; + if (stv0900_get_bits(i_params, pdel_lock_field)) { + ber *= 9766; + ber = ber >> 13; + } + + break; + } + + return ber; +} + +static int stv0900_read_ber(struct dvb_frontend *fe, u32 *ber) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *internal = state->internal; + + *ber = stv0900_get_ber(internal, state->demod); + + return 0; +} + +int stv0900_get_demod_lock(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod, s32 time_out) +{ + s32 timer = 0, + lock = 0, + header_field, + lock_field; + + enum fe_stv0900_search_state dmd_state; + + dmd_reg(header_field, F0900_P1_HEADER_MODE, F0900_P2_HEADER_MODE); + dmd_reg(lock_field, F0900_P1_LOCK_DEFINITIF, F0900_P2_LOCK_DEFINITIF); + while ((timer < time_out) && (lock == 0)) { + dmd_state = stv0900_get_bits(i_params, header_field); + dprintk("Demod State = %d\n", dmd_state); + switch (dmd_state) { + case STV0900_SEARCH: + case STV0900_PLH_DETECTED: + default: + lock = 0; + break; + case STV0900_DVBS2_FOUND: + case STV0900_DVBS_FOUND: + lock = stv0900_get_bits(i_params, lock_field); + break; + } + + if (lock == 0) + msleep(10); + + timer += 10; + } + + if (lock) + dprintk("DEMOD LOCK OK\n"); + else + dprintk("DEMOD LOCK FAIL\n"); + + return lock; +} + +void stv0900_stop_all_s2_modcod(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + s32 regflist, + i; + + dprintk(KERN_INFO "%s\n", __func__); + + dmd_reg(regflist, R0900_P1_MODCODLST0, R0900_P2_MODCODLST0); + + for (i = 0; i < 16; i++) + stv0900_write_reg(i_params, regflist + i, 0xff); +} + +void stv0900_activate_s2_modcode(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + u32 matype, + mod_code, + fmod, + reg_index, + field_index; + + dprintk(KERN_INFO "%s\n", __func__); + + if (i_params->chip_id <= 0x11) { + msleep(5); + + switch (demod) { + case STV0900_DEMOD_1: + default: + mod_code = stv0900_read_reg(i_params, + R0900_P1_PLHMODCOD); + matype = mod_code & 0x3; + mod_code = (mod_code & 0x7f) >> 2; + + reg_index = R0900_P1_MODCODLSTF - mod_code / 2; + field_index = mod_code % 2; + break; + case STV0900_DEMOD_2: + mod_code = stv0900_read_reg(i_params, + R0900_P2_PLHMODCOD); + matype = mod_code & 0x3; + mod_code = (mod_code & 0x7f) >> 2; + + reg_index = R0900_P2_MODCODLSTF - mod_code / 2; + field_index = mod_code % 2; + break; + } + + + switch (matype) { + case 0: + default: + fmod = 14; + break; + case 1: + fmod = 13; + break; + case 2: + fmod = 11; + break; + case 3: + fmod = 7; + break; + } + + if ((INRANGE(STV0900_QPSK_12, mod_code, STV0900_8PSK_910)) + && (matype <= 1)) { + if (field_index == 0) + stv0900_write_reg(i_params, reg_index, + 0xf0 | fmod); + else + stv0900_write_reg(i_params, reg_index, + (fmod << 4) | 0xf); + } + } else if (i_params->chip_id >= 0x12) { + switch (demod) { + case STV0900_DEMOD_1: + default: + for (reg_index = 0; reg_index < 7; reg_index++) + stv0900_write_reg(i_params, R0900_P1_MODCODLST0 + reg_index, 0xff); + + stv0900_write_reg(i_params, R0900_P1_MODCODLSTE, 0xff); + stv0900_write_reg(i_params, R0900_P1_MODCODLSTF, 0xcf); + for (reg_index = 0; reg_index < 8; reg_index++) + stv0900_write_reg(i_params, R0900_P1_MODCODLST7 + reg_index, 0xcc); + + break; + case STV0900_DEMOD_2: + for (reg_index = 0; reg_index < 7; reg_index++) + stv0900_write_reg(i_params, R0900_P2_MODCODLST0 + reg_index, 0xff); + + stv0900_write_reg(i_params, R0900_P2_MODCODLSTE, 0xff); + stv0900_write_reg(i_params, R0900_P2_MODCODLSTF, 0xcf); + for (reg_index = 0; reg_index < 8; reg_index++) + stv0900_write_reg(i_params, R0900_P2_MODCODLST7 + reg_index, 0xcc); + + break; + } + + } +} + +void stv0900_activate_s2_modcode_single(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + u32 reg_index; + + dprintk(KERN_INFO "%s\n", __func__); + + switch (demod) { + case STV0900_DEMOD_1: + default: + stv0900_write_reg(i_params, R0900_P1_MODCODLST0, 0xff); + stv0900_write_reg(i_params, R0900_P1_MODCODLST1, 0xf0); + stv0900_write_reg(i_params, R0900_P1_MODCODLSTF, 0x0f); + for (reg_index = 0; reg_index < 13; reg_index++) + stv0900_write_reg(i_params, + R0900_P1_MODCODLST2 + reg_index, 0); + + break; + case STV0900_DEMOD_2: + stv0900_write_reg(i_params, R0900_P2_MODCODLST0, 0xff); + stv0900_write_reg(i_params, R0900_P2_MODCODLST1, 0xf0); + stv0900_write_reg(i_params, R0900_P2_MODCODLSTF, 0x0f); + for (reg_index = 0; reg_index < 13; reg_index++) + stv0900_write_reg(i_params, + R0900_P2_MODCODLST2 + reg_index, 0); + + break; + } +} + +static enum dvbfe_algo stv0900_frontend_algo(struct dvb_frontend *fe) +{ + return DVBFE_ALGO_CUSTOM; +} + +static int stb0900_set_property(struct dvb_frontend *fe, + struct dtv_property *tvp) +{ + dprintk(KERN_INFO "%s(..)\n", __func__); + + return 0; +} + +static int stb0900_get_property(struct dvb_frontend *fe, + struct dtv_property *tvp) +{ + dprintk(KERN_INFO "%s(..)\n", __func__); + + return 0; +} + +void stv0900_start_search(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + + switch (demod) { + case STV0900_DEMOD_1: + default: + stv0900_write_bits(i_params, F0900_P1_I2C_DEMOD_MODE, 0x1f); + + if (i_params->chip_id == 0x10) + stv0900_write_reg(i_params, R0900_P1_CORRELEXP, 0xaa); + + if (i_params->chip_id < 0x20) + stv0900_write_reg(i_params, R0900_P1_CARHDR, 0x55); + + if (i_params->dmd1_symbol_rate <= 5000000) { + stv0900_write_reg(i_params, R0900_P1_CARCFG, 0x44); + stv0900_write_reg(i_params, R0900_P1_CFRUP1, 0x0f); + stv0900_write_reg(i_params, R0900_P1_CFRUP0, 0xff); + stv0900_write_reg(i_params, R0900_P1_CFRLOW1, 0xf0); + stv0900_write_reg(i_params, R0900_P1_CFRLOW0, 0x00); + stv0900_write_reg(i_params, R0900_P1_RTCS2, 0x68); + } else { + stv0900_write_reg(i_params, R0900_P1_CARCFG, 0xc4); + stv0900_write_reg(i_params, R0900_P1_RTCS2, 0x44); + } + + stv0900_write_reg(i_params, R0900_P1_CFRINIT1, 0); + stv0900_write_reg(i_params, R0900_P1_CFRINIT0, 0); + + if (i_params->chip_id >= 0x20) { + stv0900_write_reg(i_params, R0900_P1_EQUALCFG, 0x41); + stv0900_write_reg(i_params, R0900_P1_FFECFG, 0x41); + + if ((i_params->dmd1_srch_standard == STV0900_SEARCH_DVBS1) || (i_params->dmd1_srch_standard == STV0900_SEARCH_DSS) || (i_params->dmd1_srch_standard == STV0900_AUTO_SEARCH)) { + stv0900_write_reg(i_params, R0900_P1_VITSCALE, 0x82); + stv0900_write_reg(i_params, R0900_P1_VAVSRVIT, 0x0); + } + } + + stv0900_write_reg(i_params, R0900_P1_SFRSTEP, 0x00); + stv0900_write_reg(i_params, R0900_P1_TMGTHRISE, 0xe0); + stv0900_write_reg(i_params, R0900_P1_TMGTHFALL, 0xc0); + stv0900_write_bits(i_params, F0900_P1_SCAN_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P1_CFR_AUTOSCAN, 0); + stv0900_write_bits(i_params, F0900_P1_S1S2_SEQUENTIAL, 0); + stv0900_write_reg(i_params, R0900_P1_RTC, 0x88); + if (i_params->chip_id >= 0x20) { + if (i_params->dmd1_symbol_rate < 2000000) { + stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0x39); + stv0900_write_reg(i_params, R0900_P1_CARHDR, 0x40); + } + + if (i_params->dmd1_symbol_rate < 10000000) { + stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0x4c); + stv0900_write_reg(i_params, R0900_P1_CARHDR, 0x20); + } else { + stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0x4b); + stv0900_write_reg(i_params, R0900_P1_CARHDR, 0x20); + } + + } else { + if (i_params->dmd1_symbol_rate < 10000000) + stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0xef); + else + stv0900_write_reg(i_params, R0900_P1_CARFREQ, 0xed); + } + + switch (i_params->dmd1_srch_algo) { + case STV0900_WARM_START: + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x1f); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x18); + break; + case STV0900_COLD_START: + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x1f); + stv0900_write_reg(i_params, R0900_P1_DMDISTATE, 0x15); + break; + default: + break; + } + + break; + case STV0900_DEMOD_2: + stv0900_write_bits(i_params, F0900_P2_I2C_DEMOD_MODE, 0x1f); + if (i_params->chip_id == 0x10) + stv0900_write_reg(i_params, R0900_P2_CORRELEXP, 0xaa); + + if (i_params->chip_id < 0x20) + stv0900_write_reg(i_params, R0900_P2_CARHDR, 0x55); + + if (i_params->dmd2_symbol_rate <= 5000000) { + stv0900_write_reg(i_params, R0900_P2_CARCFG, 0x44); + stv0900_write_reg(i_params, R0900_P2_CFRUP1, 0x0f); + stv0900_write_reg(i_params, R0900_P2_CFRUP0, 0xff); + stv0900_write_reg(i_params, R0900_P2_CFRLOW1, 0xf0); + stv0900_write_reg(i_params, R0900_P2_CFRLOW0, 0x00); + stv0900_write_reg(i_params, R0900_P2_RTCS2, 0x68); + } else { + stv0900_write_reg(i_params, R0900_P2_CARCFG, 0xc4); + stv0900_write_reg(i_params, R0900_P2_RTCS2, 0x44); + } + + stv0900_write_reg(i_params, R0900_P2_CFRINIT1, 0); + stv0900_write_reg(i_params, R0900_P2_CFRINIT0, 0); + + if (i_params->chip_id >= 0x20) { + stv0900_write_reg(i_params, R0900_P2_EQUALCFG, 0x41); + stv0900_write_reg(i_params, R0900_P2_FFECFG, 0x41); + if ((i_params->dmd2_srch_stndrd == STV0900_SEARCH_DVBS1) || (i_params->dmd2_srch_stndrd == STV0900_SEARCH_DSS) || (i_params->dmd2_srch_stndrd == STV0900_AUTO_SEARCH)) { + stv0900_write_reg(i_params, R0900_P2_VITSCALE, 0x82); + stv0900_write_reg(i_params, R0900_P2_VAVSRVIT, 0x0); + } + } + + stv0900_write_reg(i_params, R0900_P2_SFRSTEP, 0x00); + stv0900_write_reg(i_params, R0900_P2_TMGTHRISE, 0xe0); + stv0900_write_reg(i_params, R0900_P2_TMGTHFALL, 0xc0); + stv0900_write_bits(i_params, F0900_P2_SCAN_ENABLE, 0); + stv0900_write_bits(i_params, F0900_P2_CFR_AUTOSCAN, 0); + stv0900_write_bits(i_params, F0900_P2_S1S2_SEQUENTIAL, 0); + stv0900_write_reg(i_params, R0900_P2_RTC, 0x88); + if (i_params->chip_id >= 0x20) { + if (i_params->dmd2_symbol_rate < 2000000) { + stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0x39); + stv0900_write_reg(i_params, R0900_P2_CARHDR, 0x40); + } + + if (i_params->dmd2_symbol_rate < 10000000) { + stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0x4c); + stv0900_write_reg(i_params, R0900_P2_CARHDR, 0x20); + } else { + stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0x4b); + stv0900_write_reg(i_params, R0900_P2_CARHDR, 0x20); + } + + } else { + if (i_params->dmd2_symbol_rate < 10000000) + stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0xef); + else + stv0900_write_reg(i_params, R0900_P2_CARFREQ, 0xed); + } + + switch (i_params->dmd2_srch_algo) { + case STV0900_WARM_START: + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x1f); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x18); + break; + case STV0900_COLD_START: + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x1f); + stv0900_write_reg(i_params, R0900_P2_DMDISTATE, 0x15); + break; + default: + break; + } + + break; + } +} + +u8 stv0900_get_optim_carr_loop(s32 srate, enum fe_stv0900_modcode modcode, + s32 pilot, u8 chip_id) +{ + u8 aclc_value = 0x29; + s32 i; + const struct stv0900_car_loop_optim *car_loop_s2; + + dprintk(KERN_INFO "%s\n", __func__); + + if (chip_id <= 0x12) + car_loop_s2 = FE_STV0900_S2CarLoop; + else if (chip_id == 0x20) + car_loop_s2 = FE_STV0900_S2CarLoopCut20; + else + car_loop_s2 = FE_STV0900_S2CarLoop; + + if (modcode < STV0900_QPSK_12) { + i = 0; + while ((i < 3) && (modcode != FE_STV0900_S2LowQPCarLoopCut20[i].modcode)) + i++; + + if (i >= 3) + i = 2; + } else { + i = 0; + while ((i < 14) && (modcode != car_loop_s2[i].modcode)) + i++; + + if (i >= 14) { + i = 0; + while ((i < 11) && (modcode != FE_STV0900_S2APSKCarLoopCut20[i].modcode)) + i++; + + if (i >= 11) + i = 10; + } + } + + if (modcode <= STV0900_QPSK_25) { + if (pilot) { + if (srate <= 3000000) + aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_on_2; + else if (srate <= 7000000) + aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_on_5; + else if (srate <= 15000000) + aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_on_10; + else if (srate <= 25000000) + aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_on_20; + else + aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_on_30; + } else { + if (srate <= 3000000) + aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_off_2; + else if (srate <= 7000000) + aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_off_5; + else if (srate <= 15000000) + aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_off_10; + else if (srate <= 25000000) + aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_off_20; + else + aclc_value = FE_STV0900_S2LowQPCarLoopCut20[i].car_loop_pilots_off_30; + } + + } else if (modcode <= STV0900_8PSK_910) { + if (pilot) { + if (srate <= 3000000) + aclc_value = car_loop_s2[i].car_loop_pilots_on_2; + else if (srate <= 7000000) + aclc_value = car_loop_s2[i].car_loop_pilots_on_5; + else if (srate <= 15000000) + aclc_value = car_loop_s2[i].car_loop_pilots_on_10; + else if (srate <= 25000000) + aclc_value = car_loop_s2[i].car_loop_pilots_on_20; + else + aclc_value = car_loop_s2[i].car_loop_pilots_on_30; + } else { + if (srate <= 3000000) + aclc_value = car_loop_s2[i].car_loop_pilots_off_2; + else if (srate <= 7000000) + aclc_value = car_loop_s2[i].car_loop_pilots_off_5; + else if (srate <= 15000000) + aclc_value = car_loop_s2[i].car_loop_pilots_off_10; + else if (srate <= 25000000) + aclc_value = car_loop_s2[i].car_loop_pilots_off_20; + else + aclc_value = car_loop_s2[i].car_loop_pilots_off_30; + } + + } else { + if (srate <= 3000000) + aclc_value = FE_STV0900_S2APSKCarLoopCut20[i].car_loop_pilots_on_2; + else if (srate <= 7000000) + aclc_value = FE_STV0900_S2APSKCarLoopCut20[i].car_loop_pilots_on_5; + else if (srate <= 15000000) + aclc_value = FE_STV0900_S2APSKCarLoopCut20[i].car_loop_pilots_on_10; + else if (srate <= 25000000) + aclc_value = FE_STV0900_S2APSKCarLoopCut20[i].car_loop_pilots_on_20; + else + aclc_value = FE_STV0900_S2APSKCarLoopCut20[i].car_loop_pilots_on_30; + } + + return aclc_value; +} + +u8 stv0900_get_optim_short_carr_loop(s32 srate, enum fe_stv0900_modulation modulation, u8 chip_id) +{ + s32 mod_index = 0; + + u8 aclc_value = 0x0b; + + dprintk(KERN_INFO "%s\n", __func__); + + switch (modulation) { + case STV0900_QPSK: + default: + mod_index = 0; + break; + case STV0900_8PSK: + mod_index = 1; + break; + case STV0900_16APSK: + mod_index = 2; + break; + case STV0900_32APSK: + mod_index = 3; + break; + } + + switch (chip_id) { + case 0x20: + if (srate <= 3000000) + aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut20_2; + else if (srate <= 7000000) + aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut20_5; + else if (srate <= 15000000) + aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut20_10; + else if (srate <= 25000000) + aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut20_20; + else + aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut20_30; + + break; + case 0x12: + default: + if (srate <= 3000000) + aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut12_2; + else if (srate <= 7000000) + aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut12_5; + else if (srate <= 15000000) + aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut12_10; + else if (srate <= 25000000) + aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut12_20; + else + aclc_value = FE_STV0900_S2ShortCarLoop[mod_index].car_loop_cut12_30; + + break; + } + + return aclc_value; +} + +static enum fe_stv0900_error stv0900_st_dvbs2_single(struct stv0900_internal *i_params, + enum fe_stv0900_demod_mode LDPC_Mode, + enum fe_stv0900_demod_num demod) +{ + enum fe_stv0900_error error = STV0900_NO_ERROR; + + dprintk(KERN_INFO "%s\n", __func__); + + switch (LDPC_Mode) { + case STV0900_DUAL: + default: + if ((i_params->demod_mode != STV0900_DUAL) + || (stv0900_get_bits(i_params, F0900_DDEMOD) != 1)) { + stv0900_write_reg(i_params, R0900_GENCFG, 0x1d); + + i_params->demod_mode = STV0900_DUAL; + + stv0900_write_bits(i_params, F0900_FRESFEC, 1); + stv0900_write_bits(i_params, F0900_FRESFEC, 0); + } + + break; + case STV0900_SINGLE: + if (demod == STV0900_DEMOD_2) + stv0900_write_reg(i_params, R0900_GENCFG, 0x06); + else + stv0900_write_reg(i_params, R0900_GENCFG, 0x04); + + i_params->demod_mode = STV0900_SINGLE; + + stv0900_write_bits(i_params, F0900_FRESFEC, 1); + stv0900_write_bits(i_params, F0900_FRESFEC, 0); + stv0900_write_bits(i_params, F0900_P1_ALGOSWRST, 1); + stv0900_write_bits(i_params, F0900_P1_ALGOSWRST, 0); + stv0900_write_bits(i_params, F0900_P2_ALGOSWRST, 1); + stv0900_write_bits(i_params, F0900_P2_ALGOSWRST, 0); + break; + } + + return error; +} + +static enum fe_stv0900_error stv0900_init_internal(struct dvb_frontend *fe, + struct stv0900_init_params *p_init) +{ + struct stv0900_state *state = fe->demodulator_priv; + enum fe_stv0900_error error = STV0900_NO_ERROR; + enum fe_stv0900_error demodError = STV0900_NO_ERROR; + int selosci; + + struct stv0900_inode *temp_int = find_inode(state->i2c_adap, + state->config->demod_address); + + dprintk(KERN_INFO "%s\n", __func__); + + if (temp_int != NULL) { + state->internal = temp_int->internal; + (state->internal->dmds_used)++; + dprintk(KERN_INFO "%s: Find Internal Structure!\n", __func__); + return STV0900_NO_ERROR; + } else { + state->internal = kmalloc(sizeof(struct stv0900_internal), GFP_KERNEL); + temp_int = append_internal(state->internal); + state->internal->dmds_used = 1; + state->internal->i2c_adap = state->i2c_adap; + state->internal->i2c_addr = state->config->demod_address; + state->internal->clkmode = state->config->clkmode; + state->internal->errs = STV0900_NO_ERROR; + dprintk(KERN_INFO "%s: Create New Internal Structure!\n", __func__); + } + + if (state->internal != NULL) { + demodError = stv0900_initialize(state->internal); + if (demodError == STV0900_NO_ERROR) { + error = STV0900_NO_ERROR; + } else { + if (demodError == STV0900_INVALID_HANDLE) + error = STV0900_INVALID_HANDLE; + else + error = STV0900_I2C_ERROR; + } + + if (state->internal != NULL) { + if (error == STV0900_NO_ERROR) { + state->internal->demod_mode = p_init->demod_mode; + + stv0900_st_dvbs2_single(state->internal, state->internal->demod_mode, STV0900_DEMOD_1); + + state->internal->chip_id = stv0900_read_reg(state->internal, R0900_MID); + state->internal->rolloff = p_init->rolloff; + state->internal->quartz = p_init->dmd_ref_clk; + + stv0900_write_bits(state->internal, F0900_P1_ROLLOFF_CONTROL, p_init->rolloff); + stv0900_write_bits(state->internal, F0900_P2_ROLLOFF_CONTROL, p_init->rolloff); + + stv0900_set_ts_parallel_serial(state->internal, p_init->path1_ts_clock, p_init->path2_ts_clock); + stv0900_write_bits(state->internal, F0900_P1_TUN_MADDRESS, p_init->tun1_maddress); + switch (p_init->tuner1_adc) { + case 1: + stv0900_write_reg(state->internal, R0900_TSTTNR1, 0x26); + break; + default: + break; + } + + stv0900_write_bits(state->internal, F0900_P2_TUN_MADDRESS, p_init->tun2_maddress); + switch (p_init->tuner2_adc) { + case 1: + stv0900_write_reg(state->internal, R0900_TSTTNR3, 0x26); + break; + default: + break; + } + + stv0900_write_bits(state->internal, F0900_P1_TUN_IQSWAP, p_init->tun1_iq_inversion); + stv0900_write_bits(state->internal, F0900_P2_TUN_IQSWAP, p_init->tun2_iq_inversion); + stv0900_set_mclk(state->internal, 135000000); + msleep(3); + + switch (state->internal->clkmode) { + case 0: + case 2: + stv0900_write_reg(state->internal, R0900_SYNTCTRL, 0x20 | state->internal->clkmode); + break; + default: + selosci = 0x02 & stv0900_read_reg(state->internal, R0900_SYNTCTRL); + stv0900_write_reg(state->internal, R0900_SYNTCTRL, 0x20 | selosci); + break; + } + msleep(3); + + state->internal->mclk = stv0900_get_mclk_freq(state->internal, state->internal->quartz); + if (state->internal->errs) + error = STV0900_I2C_ERROR; + } + } else { + error = STV0900_INVALID_HANDLE; + } + } + + return error; +} + +static int stv0900_status(struct stv0900_internal *i_params, + enum fe_stv0900_demod_num demod) +{ + enum fe_stv0900_search_state demod_state; + s32 mode_field, delin_field, lock_field, fifo_field, lockedvit_field; + int locked = FALSE; + + dmd_reg(mode_field, F0900_P1_HEADER_MODE, F0900_P2_HEADER_MODE); + dmd_reg(lock_field, F0900_P1_LOCK_DEFINITIF, F0900_P2_LOCK_DEFINITIF); + dmd_reg(delin_field, F0900_P1_PKTDELIN_LOCK, F0900_P2_PKTDELIN_LOCK); + dmd_reg(fifo_field, F0900_P1_TSFIFO_LINEOK, F0900_P2_TSFIFO_LINEOK); + dmd_reg(lockedvit_field, F0900_P1_LOCKEDVIT, F0900_P2_LOCKEDVIT); + + demod_state = stv0900_get_bits(i_params, mode_field); + switch (demod_state) { + case STV0900_SEARCH: + case STV0900_PLH_DETECTED: + default: + locked = FALSE; + break; + case STV0900_DVBS2_FOUND: + locked = stv0900_get_bits(i_params, lock_field) && + stv0900_get_bits(i_params, delin_field) && + stv0900_get_bits(i_params, fifo_field); + break; + case STV0900_DVBS_FOUND: + locked = stv0900_get_bits(i_params, lock_field) && + stv0900_get_bits(i_params, lockedvit_field) && + stv0900_get_bits(i_params, fifo_field); + break; + } + + return locked; +} + +static enum dvbfe_search stv0900_search(struct dvb_frontend *fe, + struct dvb_frontend_parameters *params) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + struct dtv_frontend_properties *c = &fe->dtv_property_cache; + + struct stv0900_search_params p_search; + struct stv0900_signal_info p_result; + + enum fe_stv0900_error error = STV0900_NO_ERROR; + + dprintk(KERN_INFO "%s: ", __func__); + + p_result.locked = FALSE; + p_search.path = state->demod; + p_search.frequency = c->frequency; + p_search.symbol_rate = c->symbol_rate; + p_search.search_range = 10000000; + p_search.fec = STV0900_FEC_UNKNOWN; + p_search.standard = STV0900_AUTO_SEARCH; + p_search.iq_inversion = STV0900_IQ_AUTO; + p_search.search_algo = STV0900_BLIND_SEARCH; + + if ((INRANGE(100000, p_search.symbol_rate, 70000000)) && + (INRANGE(100000, p_search.search_range, 50000000))) { + switch (p_search.path) { + case STV0900_DEMOD_1: + default: + i_params->dmd1_srch_standard = p_search.standard; + i_params->dmd1_symbol_rate = p_search.symbol_rate; + i_params->dmd1_srch_range = p_search.search_range; + i_params->tuner1_freq = p_search.frequency; + i_params->dmd1_srch_algo = p_search.search_algo; + i_params->dmd1_srch_iq_inv = p_search.iq_inversion; + i_params->dmd1_fec = p_search.fec; + break; + + case STV0900_DEMOD_2: + i_params->dmd2_srch_stndrd = p_search.standard; + i_params->dmd2_symbol_rate = p_search.symbol_rate; + i_params->dmd2_srch_range = p_search.search_range; + i_params->tuner2_freq = p_search.frequency; + i_params->dmd2_srch_algo = p_search.search_algo; + i_params->dmd2_srch_iq_inv = p_search.iq_inversion; + i_params->dmd2_fec = p_search.fec; + break; + } + + if ((stv0900_algo(fe) == STV0900_RANGEOK) && + (i_params->errs == STV0900_NO_ERROR)) { + switch (p_search.path) { + case STV0900_DEMOD_1: + default: + p_result.locked = i_params->dmd1_rslts.locked; + p_result.standard = i_params->dmd1_rslts.standard; + p_result.frequency = i_params->dmd1_rslts.frequency; + p_result.symbol_rate = i_params->dmd1_rslts.symbol_rate; + p_result.fec = i_params->dmd1_rslts.fec; + p_result.modcode = i_params->dmd1_rslts.modcode; + p_result.pilot = i_params->dmd1_rslts.pilot; + p_result.frame_length = i_params->dmd1_rslts.frame_length; + p_result.spectrum = i_params->dmd1_rslts.spectrum; + p_result.rolloff = i_params->dmd1_rslts.rolloff; + p_result.modulation = i_params->dmd1_rslts.modulation; + break; + case STV0900_DEMOD_2: + p_result.locked = i_params->dmd2_rslts.locked; + p_result.standard = i_params->dmd2_rslts.standard; + p_result.frequency = i_params->dmd2_rslts.frequency; + p_result.symbol_rate = i_params->dmd2_rslts.symbol_rate; + p_result.fec = i_params->dmd2_rslts.fec; + p_result.modcode = i_params->dmd2_rslts.modcode; + p_result.pilot = i_params->dmd2_rslts.pilot; + p_result.frame_length = i_params->dmd2_rslts.frame_length; + p_result.spectrum = i_params->dmd2_rslts.spectrum; + p_result.rolloff = i_params->dmd2_rslts.rolloff; + p_result.modulation = i_params->dmd2_rslts.modulation; + break; + } + + } else { + p_result.locked = FALSE; + switch (p_search.path) { + case STV0900_DEMOD_1: + switch (i_params->dmd1_err) { + case STV0900_I2C_ERROR: + error = STV0900_I2C_ERROR; + break; + case STV0900_NO_ERROR: + default: + error = STV0900_SEARCH_FAILED; + break; + } + break; + case STV0900_DEMOD_2: + switch (i_params->dmd2_err) { + case STV0900_I2C_ERROR: + error = STV0900_I2C_ERROR; + break; + case STV0900_NO_ERROR: + default: + error = STV0900_SEARCH_FAILED; + break; + } + break; + } + } + + } else + error = STV0900_BAD_PARAMETER; + + if ((p_result.locked == TRUE) && (error == STV0900_NO_ERROR)) { + dprintk(KERN_INFO "Search Success\n"); + return DVBFE_ALGO_SEARCH_SUCCESS; + } else { + dprintk(KERN_INFO "Search Fail\n"); + return DVBFE_ALGO_SEARCH_FAILED; + } + + return DVBFE_ALGO_SEARCH_ERROR; +} + +static int stv0900_read_status(struct dvb_frontend *fe, enum fe_status *status) +{ + struct stv0900_state *state = fe->demodulator_priv; + + dprintk("%s: ", __func__); + + if ((stv0900_status(state->internal, state->demod)) == TRUE) { + dprintk("DEMOD LOCK OK\n"); + *status = FE_HAS_CARRIER + | FE_HAS_VITERBI + | FE_HAS_SYNC + | FE_HAS_LOCK; + } else + dprintk("DEMOD LOCK FAIL\n"); + + return 0; +} + +static int stv0900_track(struct dvb_frontend *fe, + struct dvb_frontend_parameters *p) +{ + return 0; +} + +static int stv0900_stop_ts(struct dvb_frontend *fe, int stop_ts) +{ + + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + s32 rst_field; + + dmd_reg(rst_field, F0900_P1_RST_HWARE, F0900_P2_RST_HWARE); + + if (stop_ts == TRUE) + stv0900_write_bits(i_params, rst_field, 1); + else + stv0900_write_bits(i_params, rst_field, 0); + + return 0; +} + +static int stv0900_diseqc_init(struct dvb_frontend *fe) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + s32 mode_field, reset_field; + + dmd_reg(mode_field, F0900_P1_DISTX_MODE, F0900_P2_DISTX_MODE); + dmd_reg(reset_field, F0900_P1_DISEQC_RESET, F0900_P2_DISEQC_RESET); + + stv0900_write_bits(i_params, mode_field, state->config->diseqc_mode); + stv0900_write_bits(i_params, reset_field, 1); + stv0900_write_bits(i_params, reset_field, 0); + + return 0; +} + +static int stv0900_init(struct dvb_frontend *fe) +{ + dprintk(KERN_INFO "%s\n", __func__); + + stv0900_stop_ts(fe, 1); + stv0900_diseqc_init(fe); + + return 0; +} + +static int stv0900_diseqc_send(struct stv0900_internal *i_params , u8 *Data, + u32 NbData, enum fe_stv0900_demod_num demod) +{ + s32 i = 0; + + switch (demod) { + case STV0900_DEMOD_1: + default: + stv0900_write_bits(i_params, F0900_P1_DIS_PRECHARGE, 1); + while (i < NbData) { + while (stv0900_get_bits(i_params, F0900_P1_FIFO_FULL)) + ;/* checkpatch complains */ + stv0900_write_reg(i_params, R0900_P1_DISTXDATA, Data[i]); + i++; + } + + stv0900_write_bits(i_params, F0900_P1_DIS_PRECHARGE, 0); + i = 0; + while ((stv0900_get_bits(i_params, F0900_P1_TX_IDLE) != 1) && (i < 10)) { + msleep(10); + i++; + } + + break; + case STV0900_DEMOD_2: + stv0900_write_bits(i_params, F0900_P2_DIS_PRECHARGE, 1); + + while (i < NbData) { + while (stv0900_get_bits(i_params, F0900_P2_FIFO_FULL)) + ;/* checkpatch complains */ + stv0900_write_reg(i_params, R0900_P2_DISTXDATA, Data[i]); + i++; + } + + stv0900_write_bits(i_params, F0900_P2_DIS_PRECHARGE, 0); + i = 0; + while ((stv0900_get_bits(i_params, F0900_P2_TX_IDLE) != 1) && (i < 10)) { + msleep(10); + i++; + } + + break; + } + + return 0; +} + +static int stv0900_send_master_cmd(struct dvb_frontend *fe, + struct dvb_diseqc_master_cmd *cmd) +{ + struct stv0900_state *state = fe->demodulator_priv; + + return stv0900_diseqc_send(state->internal, + cmd->msg, + cmd->msg_len, + state->demod); +} + +static int stv0900_send_burst(struct dvb_frontend *fe, fe_sec_mini_cmd_t burst) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + s32 mode_field; + u32 diseqc_fifo; + + dmd_reg(mode_field, F0900_P1_DISTX_MODE, F0900_P2_DISTX_MODE); + dmd_reg(diseqc_fifo, R0900_P1_DISTXDATA, R0900_P2_DISTXDATA); + + switch (burst) { + case SEC_MINI_A: + stv0900_write_bits(i_params, mode_field, 3);/* Unmodulated */ + stv0900_write_reg(i_params, diseqc_fifo, 0x00); + break; + case SEC_MINI_B: + stv0900_write_bits(i_params, mode_field, 2);/* Modulated */ + stv0900_write_reg(i_params, diseqc_fifo, 0xff); + break; + } + + return 0; +} + +static int stv0900_recv_slave_reply(struct dvb_frontend *fe, + struct dvb_diseqc_slave_reply *reply) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + s32 i = 0; + + switch (state->demod) { + case STV0900_DEMOD_1: + default: + reply->msg_len = 0; + + while ((stv0900_get_bits(i_params, F0900_P1_RX_END) != 1) && (i < 10)) { + msleep(10); + i++; + } + + if (stv0900_get_bits(i_params, F0900_P1_RX_END)) { + reply->msg_len = stv0900_get_bits(i_params, F0900_P1_FIFO_BYTENBR); + + for (i = 0; i < reply->msg_len; i++) + reply->msg[i] = stv0900_read_reg(i_params, R0900_P1_DISRXDATA); + } + break; + case STV0900_DEMOD_2: + reply->msg_len = 0; + + while ((stv0900_get_bits(i_params, F0900_P2_RX_END) != 1) && (i < 10)) { + msleep(10); + i++; + } + + if (stv0900_get_bits(i_params, F0900_P2_RX_END)) { + reply->msg_len = stv0900_get_bits(i_params, F0900_P2_FIFO_BYTENBR); + + for (i = 0; i < reply->msg_len; i++) + reply->msg[i] = stv0900_read_reg(i_params, R0900_P2_DISRXDATA); + } + break; + } + + return 0; +} + +static int stv0900_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t tone) +{ + struct stv0900_state *state = fe->demodulator_priv; + struct stv0900_internal *i_params = state->internal; + enum fe_stv0900_demod_num demod = state->demod; + s32 mode_field, reset_field; + + dprintk(KERN_INFO "%s: %s\n", __func__, ((tone == 0) ? "Off" : "On")); + + dmd_reg(mode_field, F0900_P1_DISTX_MODE, F0900_P2_DISTX_MODE); + dmd_reg(reset_field, F0900_P1_DISEQC_RESET, F0900_P2_DISEQC_RESET); + + if (tone) { + /*Set the DiseqC mode to 22Khz continues tone*/ + stv0900_write_bits(i_params, mode_field, 0); + stv0900_write_bits(i_params, reset_field, 1); + /*release DiseqC reset to enable the 22KHz tone*/ + stv0900_write_bits(i_params, reset_field, 0); + } else { + stv0900_write_bits(i_params, mode_field, 0); + /*maintain the DiseqC reset to disable the 22KHz tone*/ + stv0900_write_bits(i_params, reset_field, 1); + } + + return 0; +} + +static void stv0900_release(struct dvb_frontend *fe) +{ + struct stv0900_state *state = fe->demodulator_priv; + + dprintk(KERN_INFO "%s\n", __func__); + + if ((--(state->internal->dmds_used)) <= 0) { + + dprintk(KERN_INFO "%s: Actually removing\n", __func__); + + remove_inode(state->internal); + kfree(state->internal); + } + + kfree(state); +} + +static struct dvb_frontend_ops stv0900_ops = { + + .info = { + .name = "STV0900 frontend", + .type = FE_QPSK, + .frequency_min = 950000, + .frequency_max = 2150000, + .frequency_stepsize = 125, + .frequency_tolerance = 0, + .symbol_rate_min = 1000000, + .symbol_rate_max = 45000000, + .symbol_rate_tolerance = 500, + .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_QPSK | + FE_CAN_2G_MODULATION | + FE_CAN_FEC_AUTO + }, + .release = stv0900_release, + .init = stv0900_init, + .get_frontend_algo = stv0900_frontend_algo, + .i2c_gate_ctrl = stv0900_i2c_gate_ctrl, + .diseqc_send_master_cmd = stv0900_send_master_cmd, + .diseqc_send_burst = stv0900_send_burst, + .diseqc_recv_slave_reply = stv0900_recv_slave_reply, + .set_tone = stv0900_set_tone, + .set_property = stb0900_set_property, + .get_property = stb0900_get_property, + .search = stv0900_search, + .track = stv0900_track, + .read_status = stv0900_read_status, + .read_ber = stv0900_read_ber, + .read_signal_strength = stv0900_read_signal_strength, + .read_snr = stv0900_read_snr, +}; + +struct dvb_frontend *stv0900_attach(const struct stv0900_config *config, + struct i2c_adapter *i2c, + int demod) +{ + struct stv0900_state *state = NULL; + struct stv0900_init_params init_params; + enum fe_stv0900_error err_stv0900; + + state = kzalloc(sizeof(struct stv0900_state), GFP_KERNEL); + if (state == NULL) + goto error; + + state->demod = demod; + state->config = config; + state->i2c_adap = i2c; + + memcpy(&state->frontend.ops, &stv0900_ops, + sizeof(struct dvb_frontend_ops)); + state->frontend.demodulator_priv = state; + + switch (demod) { + case 0: + case 1: + init_params.dmd_ref_clk = config->xtal; + init_params.demod_mode = STV0900_DUAL; + init_params.rolloff = STV0900_35; + init_params.path1_ts_clock = config->path1_mode; + init_params.tun1_maddress = config->tun1_maddress; + init_params.tun1_iq_inversion = STV0900_IQ_NORMAL; + init_params.tuner1_adc = config->tun1_adc; + init_params.path2_ts_clock = config->path2_mode; + init_params.tun2_maddress = config->tun2_maddress; + init_params.tuner2_adc = config->tun2_adc; + init_params.tun2_iq_inversion = STV0900_IQ_SWAPPED; + + err_stv0900 = stv0900_init_internal(&state->frontend, + &init_params); + + if (err_stv0900) + goto error; + + break; + default: + goto error; + break; + } + + dprintk("%s: Attaching STV0900 demodulator(%d) \n", __func__, demod); + return &state->frontend; + +error: + dprintk("%s: Failed to attach STV0900 demodulator(%d) \n", + __func__, demod); + kfree(state); + return NULL; +} +EXPORT_SYMBOL(stv0900_attach); + +MODULE_PARM_DESC(debug, "Set debug"); + +MODULE_AUTHOR("Igor M. Liplianin"); +MODULE_DESCRIPTION("ST STV0900 frontend"); +MODULE_LICENSE("GPL"); |