| /* |
| * 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" |
| |
| 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 *intp, u16 reg_addr, |
| u8 reg_data) |
| { |
| u8 data[3]; |
| int ret; |
| struct i2c_msg i2cmsg = { |
| .addr = intp->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(intp->i2c_adap, &i2cmsg, 1); |
| if (ret != 1) |
| dprintk("%s: i2c error %d\n", __func__, ret); |
| } |
| |
| u8 stv0900_read_reg(struct stv0900_internal *intp, u16 reg) |
| { |
| int ret; |
| u8 b0[] = { MSB(reg), LSB(reg) }; |
| u8 buf = 0; |
| struct i2c_msg msg[] = { |
| { |
| .addr = intp->i2c_addr, |
| .flags = 0, |
| .buf = b0, |
| .len = 2, |
| }, { |
| .addr = intp->i2c_addr, |
| .flags = I2C_M_RD, |
| .buf = &buf, |
| .len = 1, |
| }, |
| }; |
| |
| ret = i2c_transfer(intp->i2c_adap, msg, 2); |
| if (ret != 2) |
| dprintk("%s: i2c error %d, reg[0x%02x]\n", |
| __func__, ret, reg); |
| |
| return buf; |
| } |
| |
| 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 *intp, u32 label, u8 val) |
| { |
| u8 reg, mask, pos; |
| |
| reg = stv0900_read_reg(intp, (label >> 16) & 0xffff); |
| extract_mask_pos(label, &mask, &pos); |
| |
| val = mask & (val << pos); |
| |
| reg = (reg & (~mask)) | val; |
| stv0900_write_reg(intp, (label >> 16) & 0xffff, reg); |
| |
| } |
| |
| u8 stv0900_get_bits(struct stv0900_internal *intp, u32 label) |
| { |
| u8 val = 0xff; |
| u8 mask, pos; |
| |
| extract_mask_pos(label, &mask, &pos); |
| |
| val = stv0900_read_reg(intp, label >> 16); |
| val = (val & mask) >> pos; |
| |
| return val; |
| } |
| |
| enum fe_stv0900_error stv0900_initialize(struct stv0900_internal *intp) |
| { |
| s32 i; |
| |
| if (intp == NULL) |
| return STV0900_INVALID_HANDLE; |
| |
| intp->chip_id = stv0900_read_reg(intp, R0900_MID); |
| |
| if (intp->errs != STV0900_NO_ERROR) |
| return intp->errs; |
| |
| /*Startup sequence*/ |
| stv0900_write_reg(intp, R0900_P1_DMDISTATE, 0x5c); |
| stv0900_write_reg(intp, R0900_P2_DMDISTATE, 0x5c); |
| msleep(3); |
| stv0900_write_reg(intp, R0900_P1_TNRCFG, 0x6c); |
| stv0900_write_reg(intp, R0900_P2_TNRCFG, 0x6f); |
| stv0900_write_reg(intp, R0900_P1_I2CRPT, 0x20); |
| stv0900_write_reg(intp, R0900_P2_I2CRPT, 0x20); |
| stv0900_write_reg(intp, R0900_NCOARSE, 0x13); |
| msleep(3); |
| stv0900_write_reg(intp, R0900_I2CCFG, 0x08); |
| |
| switch (intp->clkmode) { |
| case 0: |
| case 2: |
| stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 |
| | intp->clkmode); |
| break; |
| default: |
| /* preserve SELOSCI bit */ |
| i = 0x02 & stv0900_read_reg(intp, R0900_SYNTCTRL); |
| stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | i); |
| break; |
| } |
| |
| msleep(3); |
| for (i = 0; i < 181; i++) |
| stv0900_write_reg(intp, STV0900_InitVal[i][0], |
| STV0900_InitVal[i][1]); |
| |
| if (stv0900_read_reg(intp, R0900_MID) >= 0x20) { |
| stv0900_write_reg(intp, R0900_TSGENERAL, 0x0c); |
| for (i = 0; i < 32; i++) |
| stv0900_write_reg(intp, STV0900_Cut20_AddOnVal[i][0], |
| STV0900_Cut20_AddOnVal[i][1]); |
| } |
| |
| stv0900_write_reg(intp, R0900_P1_FSPYCFG, 0x6c); |
| stv0900_write_reg(intp, R0900_P2_FSPYCFG, 0x6c); |
| |
| stv0900_write_reg(intp, R0900_P1_PDELCTRL2, 0x01); |
| stv0900_write_reg(intp, R0900_P2_PDELCTRL2, 0x21); |
| |
| stv0900_write_reg(intp, R0900_P1_PDELCTRL3, 0x20); |
| stv0900_write_reg(intp, R0900_P2_PDELCTRL3, 0x20); |
| |
| stv0900_write_reg(intp, R0900_TSTRES0, 0x80); |
| stv0900_write_reg(intp, R0900_TSTRES0, 0x00); |
| |
| return STV0900_NO_ERROR; |
| } |
| |
| u32 stv0900_get_mclk_freq(struct stv0900_internal *intp, u32 ext_clk) |
| { |
| u32 mclk = 90000000, div = 0, ad_div = 0; |
| |
| div = stv0900_get_bits(intp, F0900_M_DIV); |
| ad_div = ((stv0900_get_bits(intp, F0900_SELX1RATIO) == 1) ? 4 : 6); |
| |
| mclk = (div + 1) * ext_clk / ad_div; |
| |
| dprintk("%s: Calculated Mclk = %d\n", __func__, mclk); |
| |
| return mclk; |
| } |
| |
| enum fe_stv0900_error stv0900_set_mclk(struct stv0900_internal *intp, u32 mclk) |
| { |
| u32 m_div, clk_sel; |
| |
| dprintk("%s: Mclk set to %d, Quartz = %d\n", __func__, mclk, |
| intp->quartz); |
| |
| if (intp == NULL) |
| return STV0900_INVALID_HANDLE; |
| |
| if (intp->errs) |
| return STV0900_I2C_ERROR; |
| |
| clk_sel = ((stv0900_get_bits(intp, F0900_SELX1RATIO) == 1) ? 4 : 6); |
| m_div = ((clk_sel * mclk) / intp->quartz) - 1; |
| stv0900_write_bits(intp, F0900_M_DIV, m_div); |
| intp->mclk = stv0900_get_mclk_freq(intp, |
| intp->quartz); |
| |
| /*Set the DiseqC frequency to 22KHz */ |
| /* |
| Formula: |
| DiseqC_TX_Freq= MasterClock/(32*F22TX_Reg) |
| DiseqC_RX_Freq= MasterClock/(32*F22RX_Reg) |
| */ |
| m_div = intp->mclk / 704000; |
| stv0900_write_reg(intp, R0900_P1_F22TX, m_div); |
| stv0900_write_reg(intp, R0900_P1_F22RX, m_div); |
| |
| stv0900_write_reg(intp, R0900_P2_F22TX, m_div); |
| stv0900_write_reg(intp, R0900_P2_F22RX, m_div); |
| |
| if ((intp->errs)) |
| return STV0900_I2C_ERROR; |
| |
| return STV0900_NO_ERROR; |
| } |
| |
| u32 stv0900_get_err_count(struct stv0900_internal *intp, int cntr, |
| enum fe_stv0900_demod_num demod) |
| { |
| u32 lsb, msb, hsb, err_val; |
| |
| switch (cntr) { |
| case 0: |
| default: |
| hsb = stv0900_get_bits(intp, ERR_CNT12); |
| msb = stv0900_get_bits(intp, ERR_CNT11); |
| lsb = stv0900_get_bits(intp, ERR_CNT10); |
| break; |
| case 1: |
| hsb = stv0900_get_bits(intp, ERR_CNT22); |
| msb = stv0900_get_bits(intp, ERR_CNT21); |
| lsb = stv0900_get_bits(intp, ERR_CNT20); |
| 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 *intp = state->internal; |
| enum fe_stv0900_demod_num demod = state->demod; |
| |
| stv0900_write_bits(intp, I2CT_ON, enable); |
| |
| return 0; |
| } |
| |
| static void stv0900_set_ts_parallel_serial(struct stv0900_internal *intp, |
| enum fe_stv0900_clock_type path1_ts, |
| enum fe_stv0900_clock_type path2_ts) |
| { |
| |
| dprintk("%s\n", __func__); |
| |
| if (intp->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(intp, R0900_TSGENERAL, |
| 0x00); |
| break; |
| case STV0900_PARALLEL_PUNCT_CLOCK: |
| case STV0900_DVBCI_CLOCK: |
| stv0900_write_reg(intp, R0900_TSGENERAL, |
| 0x06); |
| stv0900_write_bits(intp, |
| F0900_P1_TSFIFO_MANSPEED, 3); |
| stv0900_write_bits(intp, |
| F0900_P2_TSFIFO_MANSPEED, 0); |
| stv0900_write_reg(intp, |
| R0900_P1_TSSPEED, 0x14); |
| stv0900_write_reg(intp, |
| 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(intp, |
| R0900_TSGENERAL, 0x0C); |
| break; |
| case STV0900_PARALLEL_PUNCT_CLOCK: |
| case STV0900_DVBCI_CLOCK: |
| stv0900_write_reg(intp, |
| R0900_TSGENERAL, 0x0A); |
| dprintk("%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(intp, R0900_TSGENERAL1X, |
| 0x10); |
| break; |
| case STV0900_PARALLEL_PUNCT_CLOCK: |
| case STV0900_DVBCI_CLOCK: |
| stv0900_write_reg(intp, R0900_TSGENERAL1X, |
| 0x16); |
| stv0900_write_bits(intp, |
| F0900_P1_TSFIFO_MANSPEED, 3); |
| stv0900_write_bits(intp, |
| F0900_P2_TSFIFO_MANSPEED, 0); |
| stv0900_write_reg(intp, R0900_P1_TSSPEED, |
| 0x14); |
| stv0900_write_reg(intp, 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(intp, R0900_TSGENERAL1X, |
| 0x14); |
| break; |
| case STV0900_PARALLEL_PUNCT_CLOCK: |
| case STV0900_DVBCI_CLOCK: |
| stv0900_write_reg(intp, R0900_TSGENERAL1X, |
| 0x12); |
| dprintk("%s: 0x12\n", __func__); |
| break; |
| } |
| |
| break; |
| } |
| } |
| |
| switch (path1_ts) { |
| case STV0900_PARALLEL_PUNCT_CLOCK: |
| stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x00); |
| stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x00); |
| break; |
| case STV0900_DVBCI_CLOCK: |
| stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x00); |
| stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x01); |
| break; |
| case STV0900_SERIAL_PUNCT_CLOCK: |
| stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x01); |
| stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x00); |
| break; |
| case STV0900_SERIAL_CONT_CLOCK: |
| stv0900_write_bits(intp, F0900_P1_TSFIFO_SERIAL, 0x01); |
| stv0900_write_bits(intp, F0900_P1_TSFIFO_DVBCI, 0x01); |
| break; |
| default: |
| break; |
| } |
| |
| switch (path2_ts) { |
| case STV0900_PARALLEL_PUNCT_CLOCK: |
| stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x00); |
| stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x00); |
| break; |
| case STV0900_DVBCI_CLOCK: |
| stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x00); |
| stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x01); |
| break; |
| case STV0900_SERIAL_PUNCT_CLOCK: |
| stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x01); |
| stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x00); |
| break; |
| case STV0900_SERIAL_CONT_CLOCK: |
| stv0900_write_bits(intp, F0900_P2_TSFIFO_SERIAL, 0x01); |
| stv0900_write_bits(intp, F0900_P2_TSFIFO_DVBCI, 0x01); |
| break; |
| default: |
| break; |
| } |
| |
| stv0900_write_bits(intp, F0900_P2_RST_HWARE, 1); |
| stv0900_write_bits(intp, F0900_P2_RST_HWARE, 0); |
| stv0900_write_bits(intp, F0900_P1_RST_HWARE, 1); |
| stv0900_write_bits(intp, 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 *intp, |
| const struct stv0900_table *lookup, |
| enum fe_stv0900_demod_num demod) |
| { |
| s32 agc_gain = 0, |
| imin, |
| imax, |
| i, |
| rf_lvl = 0; |
| |
| dprintk("%s\n", __func__); |
| |
| if ((lookup == NULL) || (lookup->size <= 0)) |
| return 0; |
| |
| agc_gain = MAKEWORD(stv0900_get_bits(intp, AGCIQ_VALUE1), |
| stv0900_get_bits(intp, AGCIQ_VALUE0)); |
| |
| 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; |
| rf_lvl *= (lookup->table[imax].realval - |
| lookup->table[imin].realval); |
| rf_lvl /= (lookup->table[imax].regval - |
| lookup->table[imin].regval); |
| rf_lvl += 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("%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); |
| |
| rflevel = (rflevel + 100) * (65535 / 70); |
| if (rflevel < 0) |
| rflevel = 0; |
| |
| if (rflevel > 65535) |
| rflevel = 65535; |
| |
| *strength = rflevel; |
| |
| 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 *intp = state->internal; |
| enum fe_stv0900_demod_num demod = state->demod; |
| |
| s32 c_n = -100, |
| regval, |
| imin, |
| imax, |
| i, |
| noise_field1, |
| noise_field0; |
| |
| dprintk("%s\n", __func__); |
| |
| if (stv0900_get_standard(fe, demod) == STV0900_DVBS2_STANDARD) { |
| noise_field1 = NOSPLHT_NORMED1; |
| noise_field0 = NOSPLHT_NORMED0; |
| } else { |
| noise_field1 = NOSDATAT_NORMED1; |
| noise_field0 = NOSDATAT_NORMED0; |
| } |
| |
| if (stv0900_get_bits(intp, LOCK_DEFINITIF)) { |
| if ((lookup != NULL) && lookup->size) { |
| regval = 0; |
| msleep(5); |
| for (i = 0; i < 16; i++) { |
| regval += MAKEWORD(stv0900_get_bits(intp, |
| noise_field1), |
| stv0900_get_bits(intp, |
| 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_ucblocks(struct dvb_frontend *fe, u32 * ucblocks) |
| { |
| struct stv0900_state *state = fe->demodulator_priv; |
| struct stv0900_internal *intp = state->internal; |
| enum fe_stv0900_demod_num demod = state->demod; |
| u8 err_val1, err_val0; |
| u32 header_err_val = 0; |
| |
| *ucblocks = 0x0; |
| if (stv0900_get_standard(fe, demod) == STV0900_DVBS2_STANDARD) { |
| /* DVB-S2 delineator errors count */ |
| |
| /* retreiving number for errnous headers */ |
| err_val1 = stv0900_read_reg(intp, BBFCRCKO1); |
| err_val0 = stv0900_read_reg(intp, BBFCRCKO0); |
| header_err_val = (err_val1 << 8) | err_val0; |
| |
| /* retreiving number for errnous packets */ |
| err_val1 = stv0900_read_reg(intp, UPCRCKO1); |
| err_val0 = stv0900_read_reg(intp, UPCRCKO0); |
| *ucblocks = (err_val1 << 8) | err_val0; |
| *ucblocks += header_err_val; |
| } |
| |
| return 0; |
| } |
| |
| static int stv0900_read_snr(struct dvb_frontend *fe, u16 *snr) |
| { |
| s32 snrlcl = stv0900_carr_get_quality(fe, |
| (const struct stv0900_table *)&stv0900_s2_cn); |
| snrlcl = (snrlcl + 30) * 384; |
| if (snrlcl < 0) |
| snrlcl = 0; |
| |
| if (snrlcl > 65535) |
| snrlcl = 65535; |
| |
| *snr = snrlcl; |
| |
| return 0; |
| } |
| |
| static u32 stv0900_get_ber(struct stv0900_internal *intp, |
| enum fe_stv0900_demod_num demod) |
| { |
| u32 ber = 10000000, i; |
| s32 demod_state; |
| |
| demod_state = stv0900_get_bits(intp, HEADER_MODE); |
| |
| 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(intp, 0, demod); |
| } |
| |
| ber /= 5; |
| if (stv0900_get_bits(intp, PRFVIT)) { |
| 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(intp, 0, demod); |
| } |
| |
| ber /= 5; |
| if (stv0900_get_bits(intp, PKTDELIN_LOCK)) { |
| 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 *intp, |
| enum fe_stv0900_demod_num demod, s32 time_out) |
| { |
| s32 timer = 0, |
| lock = 0; |
| |
| enum fe_stv0900_search_state dmd_state; |
| |
| while ((timer < time_out) && (lock == 0)) { |
| dmd_state = stv0900_get_bits(intp, HEADER_MODE); |
| 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(intp, LOCK_DEFINITIF); |
| 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 *intp, |
| enum fe_stv0900_demod_num demod) |
| { |
| s32 regflist, |
| i; |
| |
| dprintk("%s\n", __func__); |
| |
| regflist = MODCODLST0; |
| |
| for (i = 0; i < 16; i++) |
| stv0900_write_reg(intp, regflist + i, 0xff); |
| } |
| |
| void stv0900_activate_s2_modcod(struct stv0900_internal *intp, |
| enum fe_stv0900_demod_num demod) |
| { |
| u32 matype, |
| mod_code, |
| fmod, |
| reg_index, |
| field_index; |
| |
| dprintk("%s\n", __func__); |
| |
| if (intp->chip_id <= 0x11) { |
| msleep(5); |
| |
| mod_code = stv0900_read_reg(intp, PLHMODCOD); |
| matype = mod_code & 0x3; |
| mod_code = (mod_code & 0x7f) >> 2; |
| |
| reg_index = MODCODLSTF - mod_code / 2; |
| field_index = mod_code % 2; |
| |
| 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(intp, reg_index, |
| 0xf0 | fmod); |
| else |
| stv0900_write_reg(intp, reg_index, |
| (fmod << 4) | 0xf); |
| } |
| |
| } else if (intp->chip_id >= 0x12) { |
| for (reg_index = 0; reg_index < 7; reg_index++) |
| stv0900_write_reg(intp, MODCODLST0 + reg_index, 0xff); |
| |
| stv0900_write_reg(intp, MODCODLSTE, 0xff); |
| stv0900_write_reg(intp, MODCODLSTF, 0xcf); |
| for (reg_index = 0; reg_index < 8; reg_index++) |
| stv0900_write_reg(intp, MODCODLST7 + reg_index, 0xcc); |
| |
| |
| } |
| } |
| |
| void stv0900_activate_s2_modcod_single(struct stv0900_internal *intp, |
| enum fe_stv0900_demod_num demod) |
| { |
| u32 reg_index; |
| |
| dprintk("%s\n", __func__); |
| |
| stv0900_write_reg(intp, MODCODLST0, 0xff); |
| stv0900_write_reg(intp, MODCODLST1, 0xf0); |
| stv0900_write_reg(intp, MODCODLSTF, 0x0f); |
| for (reg_index = 0; reg_index < 13; reg_index++) |
| stv0900_write_reg(intp, MODCODLST2 + reg_index, 0); |
| |
| } |
| |
| 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("%s(..)\n", __func__); |
| |
| return 0; |
| } |
| |
| static int stb0900_get_property(struct dvb_frontend *fe, |
| struct dtv_property *tvp) |
| { |
| dprintk("%s(..)\n", __func__); |
| |
| return 0; |
| } |
| |
| void stv0900_start_search(struct stv0900_internal *intp, |
| enum fe_stv0900_demod_num demod) |
| { |
| u32 freq; |
| s16 freq_s16 ; |
| |
| stv0900_write_bits(intp, DEMOD_MODE, 0x1f); |
| if (intp->chip_id == 0x10) |
| stv0900_write_reg(intp, CORRELEXP, 0xaa); |
| |
| if (intp->chip_id < 0x20) |
| stv0900_write_reg(intp, CARHDR, 0x55); |
| |
| if (intp->chip_id <= 0x20) { |
| if (intp->symbol_rate[0] <= 5000000) { |
| stv0900_write_reg(intp, CARCFG, 0x44); |
| stv0900_write_reg(intp, CFRUP1, 0x0f); |
| stv0900_write_reg(intp, CFRUP0, 0xff); |
| stv0900_write_reg(intp, CFRLOW1, 0xf0); |
| stv0900_write_reg(intp, CFRLOW0, 0x00); |
| stv0900_write_reg(intp, RTCS2, 0x68); |
| } else { |
| stv0900_write_reg(intp, CARCFG, 0xc4); |
| stv0900_write_reg(intp, RTCS2, 0x44); |
| } |
| |
| } else { /*cut 3.0 above*/ |
| if (intp->symbol_rate[demod] <= 5000000) |
| stv0900_write_reg(intp, RTCS2, 0x68); |
| else |
| stv0900_write_reg(intp, RTCS2, 0x44); |
| |
| stv0900_write_reg(intp, CARCFG, 0x46); |
| if (intp->srch_algo[demod] == STV0900_WARM_START) { |
| freq = 1000 << 16; |
| freq /= (intp->mclk / 1000); |
| freq_s16 = (s16)freq; |
| } else { |
| freq = (intp->srch_range[demod] / 2000); |
| if (intp->symbol_rate[demod] <= 5000000) |
| freq += 80; |
| else |
| freq += 600; |
| |
| freq = freq << 16; |
| freq /= (intp->mclk / 1000); |
| freq_s16 = (s16)freq; |
| } |
| |
| stv0900_write_bits(intp, CFR_UP1, MSB(freq_s16)); |
| stv0900_write_bits(intp, CFR_UP0, LSB(freq_s16)); |
| freq_s16 *= (-1); |
| stv0900_write_bits(intp, CFR_LOW1, MSB(freq_s16)); |
| stv0900_write_bits(intp, CFR_LOW0, LSB(freq_s16)); |
| } |
| |
| stv0900_write_reg(intp, CFRINIT1, 0); |
| stv0900_write_reg(intp, CFRINIT0, 0); |
| |
| if (intp->chip_id >= 0x20) { |
| stv0900_write_reg(intp, EQUALCFG, 0x41); |
| stv0900_write_reg(intp, FFECFG, 0x41); |
| |
| if ((intp->srch_standard[demod] == STV0900_SEARCH_DVBS1) || |
| (intp->srch_standard[demod] == STV0900_SEARCH_DSS) || |
| (intp->srch_standard[demod] == STV0900_AUTO_SEARCH)) { |
| stv0900_write_reg(intp, VITSCALE, |
| 0x82); |
| stv0900_write_reg(intp, VAVSRVIT, 0x0); |
| } |
| } |
| |
| stv0900_write_reg(intp, SFRSTEP, 0x00); |
| stv0900_write_reg(intp, TMGTHRISE, 0xe0); |
| stv0900_write_reg(intp, TMGTHFALL, 0xc0); |
| stv0900_write_bits(intp, SCAN_ENABLE, 0); |
| stv0900_write_bits(intp, CFR_AUTOSCAN, 0); |
| stv0900_write_bits(intp, S1S2_SEQUENTIAL, 0); |
| stv0900_write_reg(intp, RTC, 0x88); |
| if (intp->chip_id >= 0x20) { |
| if (intp->symbol_rate[demod] < 2000000) { |
| if (intp->chip_id <= 0x20) |
| stv0900_write_reg(intp, CARFREQ, 0x39); |
| else /*cut 3.0*/ |
| stv0900_write_reg(intp, CARFREQ, 0x89); |
| |
| stv0900_write_reg(intp, CARHDR, 0x40); |
| } else if (intp->symbol_rate[demod] < 10000000) { |
| stv0900_write_reg(intp, CARFREQ, 0x4c); |
| stv0900_write_reg(intp, CARHDR, 0x20); |
| } else { |
| stv0900_write_reg(intp, CARFREQ, 0x4b); |
| stv0900_write_reg(intp, CARHDR, 0x20); |
| } |
| |
| } else { |
| if (intp->symbol_rate[demod] < 10000000) |
| stv0900_write_reg(intp, CARFREQ, 0xef); |
| else |
| stv0900_write_reg(intp, CARFREQ, 0xed); |
| } |
| |
| switch (intp->srch_algo[demod]) { |
| case STV0900_WARM_START: |
| stv0900_write_reg(intp, DMDISTATE, 0x1f); |
| stv0900_write_reg(intp, DMDISTATE, 0x18); |
| break; |
| case STV0900_COLD_START: |
| stv0900_write_reg(intp, DMDISTATE, 0x1f); |
| stv0900_write_reg(intp, DMDISTATE, 0x15); |
| break; |
| default: |
| 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 *cls2, *cllqs2, *cllas2; |
| |
| dprintk("%s\n", __func__); |
| |
| if (chip_id <= 0x12) { |
| cls2 = FE_STV0900_S2CarLoop; |
| cllqs2 = FE_STV0900_S2LowQPCarLoopCut30; |
| cllas2 = FE_STV0900_S2APSKCarLoopCut30; |
| } else if (chip_id == 0x20) { |
| cls2 = FE_STV0900_S2CarLoopCut20; |
| cllqs2 = FE_STV0900_S2LowQPCarLoopCut20; |
| cllas2 = FE_STV0900_S2APSKCarLoopCut20; |
| } else { |
| cls2 = FE_STV0900_S2CarLoopCut30; |
| cllqs2 = FE_STV0900_S2LowQPCarLoopCut30; |
| cllas2 = FE_STV0900_S2APSKCarLoopCut30; |
| } |
| |
| if (modcode < STV0900_QPSK_12) { |
| i = 0; |
| while ((i < 3) && (modcode != cllqs2[i].modcode)) |
| i++; |
| |
| if (i >= 3) |
| i = 2; |
| } else { |
| i = 0; |
| while ((i < 14) && (modcode != cls2[i].modcode)) |
| i++; |
| |
| if (i >= 14) { |
| i = 0; |
| while ((i < 11) && (modcode != cllas2[i].modcode)) |
| i++; |
| |
| if (i >= 11) |
| i = 10; |
| } |
| } |
| |
| if (modcode <= STV0900_QPSK_25) { |
| if (pilot) { |
| if (srate <= 3000000) |
| aclc_value = cllqs2[i].car_loop_pilots_on_2; |
| else if (srate <= 7000000) |
| aclc_value = cllqs2[i].car_loop_pilots_on_5; |
| else if (srate <= 15000000) |
| aclc_value = cllqs2[i].car_loop_pilots_on_10; |
| else if (srate <= 25000000) |
| aclc_value = cllqs2[i].car_loop_pilots_on_20; |
| else |
| aclc_value = cllqs2[i].car_loop_pilots_on_30; |
| } else { |
| if (srate <= 3000000) |
| aclc_value = cllqs2[i].car_loop_pilots_off_2; |
| else if (srate <= 7000000) |
| aclc_value = cllqs2[i].car_loop_pilots_off_5; |
| else if (srate <= 15000000) |
| aclc_value = cllqs2[i].car_loop_pilots_off_10; |
| else if (srate <= 25000000) |
| aclc_value = cllqs2[i].car_loop_pilots_off_20; |
| else |
| aclc_value = cllqs2[i].car_loop_pilots_off_30; |
| } |
| |
| } else if (modcode <= STV0900_8PSK_910) { |
| if (pilot) { |
| if (srate <= 3000000) |
| aclc_value = cls2[i].car_loop_pilots_on_2; |
| else if (srate <= 7000000) |
| aclc_value = cls2[i].car_loop_pilots_on_5; |
| else if (srate <= 15000000) |
| aclc_value = cls2[i].car_loop_pilots_on_10; |
| else if (srate <= 25000000) |
| aclc_value = cls2[i].car_loop_pilots_on_20; |
| else |
| aclc_value = cls2[i].car_loop_pilots_on_30; |
| } else { |
| if (srate <= 3000000) |
| aclc_value = cls2[i].car_loop_pilots_off_2; |
| else if (srate <= 7000000) |
| aclc_value = cls2[i].car_loop_pilots_off_5; |
| else if (srate <= 15000000) |
| aclc_value = cls2[i].car_loop_pilots_off_10; |
| else if (srate <= 25000000) |
| aclc_value = cls2[i].car_loop_pilots_off_20; |
| else |
| aclc_value = cls2[i].car_loop_pilots_off_30; |
| } |
| |
| } else { |
| if (srate <= 3000000) |
| aclc_value = cllas2[i].car_loop_pilots_on_2; |
| else if (srate <= 7000000) |
| aclc_value = cllas2[i].car_loop_pilots_on_5; |
| else if (srate <= 15000000) |
| aclc_value = cllas2[i].car_loop_pilots_on_10; |
| else if (srate <= 25000000) |
| aclc_value = cllas2[i].car_loop_pilots_on_20; |
| else |
| aclc_value = cllas2[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) |
| { |
| const struct stv0900_short_frames_car_loop_optim *s2scl; |
| const struct stv0900_short_frames_car_loop_optim_vs_mod *s2sclc30; |
| s32 mod_index = 0; |
| u8 aclc_value = 0x0b; |
| |
| dprintk("%s\n", __func__); |
| |
| s2scl = FE_STV0900_S2ShortCarLoop; |
| s2sclc30 = FE_STV0900_S2ShortCarLoopCut30; |
| |
| 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; |
| } |
| |
| if (chip_id >= 0x30) { |
| if (srate <= 3000000) |
| aclc_value = s2sclc30[mod_index].car_loop_2; |
| else if (srate <= 7000000) |
| aclc_value = s2sclc30[mod_index].car_loop_5; |
| else if (srate <= 15000000) |
| aclc_value = s2sclc30[mod_index].car_loop_10; |
| else if (srate <= 25000000) |
| aclc_value = s2sclc30[mod_index].car_loop_20; |
| else |
| aclc_value = s2sclc30[mod_index].car_loop_30; |
| |
| } else if (chip_id >= 0x20) { |
| if (srate <= 3000000) |
| aclc_value = s2scl[mod_index].car_loop_cut20_2; |
| else if (srate <= 7000000) |
| aclc_value = s2scl[mod_index].car_loop_cut20_5; |
| else if (srate <= 15000000) |
| aclc_value = s2scl[mod_index].car_loop_cut20_10; |
| else if (srate <= 25000000) |
| aclc_value = s2scl[mod_index].car_loop_cut20_20; |
| else |
| aclc_value = s2scl[mod_index].car_loop_cut20_30; |
| |
| } else { |
| if (srate <= 3000000) |
| aclc_value = s2scl[mod_index].car_loop_cut12_2; |
| else if (srate <= 7000000) |
| aclc_value = s2scl[mod_index].car_loop_cut12_5; |
| else if (srate <= 15000000) |
| aclc_value = s2scl[mod_index].car_loop_cut12_10; |
| else if (srate <= 25000000) |
| aclc_value = s2scl[mod_index].car_loop_cut12_20; |
| else |
| aclc_value = s2scl[mod_index].car_loop_cut12_30; |
| |
| } |
| |
| return aclc_value; |
| } |
| |
| static |
| enum fe_stv0900_error stv0900_st_dvbs2_single(struct stv0900_internal *intp, |
| enum fe_stv0900_demod_mode LDPC_Mode, |
| enum fe_stv0900_demod_num demod) |
| { |
| enum fe_stv0900_error error = STV0900_NO_ERROR; |
| s32 reg_ind; |
| |
| dprintk("%s\n", __func__); |
| |
| switch (LDPC_Mode) { |
| case STV0900_DUAL: |
| default: |
| if ((intp->demod_mode != STV0900_DUAL) |
| || (stv0900_get_bits(intp, F0900_DDEMOD) != 1)) { |
| stv0900_write_reg(intp, R0900_GENCFG, 0x1d); |
| |
| intp->demod_mode = STV0900_DUAL; |
| |
| stv0900_write_bits(intp, F0900_FRESFEC, 1); |
| stv0900_write_bits(intp, F0900_FRESFEC, 0); |
| |
| for (reg_ind = 0; reg_ind < 7; reg_ind++) |
| stv0900_write_reg(intp, |
| R0900_P1_MODCODLST0 + reg_ind, |
| 0xff); |
| for (reg_ind = 0; reg_ind < 8; reg_ind++) |
| stv0900_write_reg(intp, |
| R0900_P1_MODCODLST7 + reg_ind, |
| 0xcc); |
| |
| stv0900_write_reg(intp, R0900_P1_MODCODLSTE, 0xff); |
| stv0900_write_reg(intp, R0900_P1_MODCODLSTF, 0xcf); |
| |
| for (reg_ind = 0; reg_ind < 7; reg_ind++) |
| stv0900_write_reg(intp, |
| R0900_P2_MODCODLST0 + reg_ind, |
| 0xff); |
| for (reg_ind = 0; reg_ind < 8; reg_ind++) |
| stv0900_write_reg(intp, |
| R0900_P2_MODCODLST7 + reg_ind, |
| 0xcc); |
| |
| stv0900_write_reg(intp, R0900_P2_MODCODLSTE, 0xff); |
| stv0900_write_reg(intp, R0900_P2_MODCODLSTF, 0xcf); |
| } |
| |
| break; |
| case STV0900_SINGLE: |
| if (demod == STV0900_DEMOD_2) { |
| stv0900_stop_all_s2_modcod(intp, STV0900_DEMOD_1); |
| stv0900_activate_s2_modcod_single(intp, |
| STV0900_DEMOD_2); |
| stv0900_write_reg(intp, R0900_GENCFG, 0x06); |
| } else { |
| stv0900_stop_all_s2_modcod(intp, STV0900_DEMOD_2); |
| stv0900_activate_s2_modcod_single(intp, |
| STV0900_DEMOD_1); |
| stv0900_write_reg(intp, R0900_GENCFG, 0x04); |
| } |
| |
| intp->demod_mode = STV0900_SINGLE; |
| |
| stv0900_write_bits(intp, F0900_FRESFEC, 1); |
| stv0900_write_bits(intp, F0900_FRESFEC, 0); |
| stv0900_write_bits(intp, F0900_P1_ALGOSWRST, 1); |
| stv0900_write_bits(intp, F0900_P1_ALGOSWRST, 0); |
| stv0900_write_bits(intp, F0900_P2_ALGOSWRST, 1); |
| stv0900_write_bits(intp, 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; |
| struct stv0900_internal *intp = NULL; |
| |
| int selosci, i; |
| |
| struct stv0900_inode *temp_int = find_inode(state->i2c_adap, |
| state->config->demod_address); |
| |
| dprintk("%s\n", __func__); |
| |
| if ((temp_int != NULL) && (p_init->demod_mode == STV0900_DUAL)) { |
| state->internal = temp_int->internal; |
| (state->internal->dmds_used)++; |
| dprintk("%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("%s: Create New Internal Structure!\n", __func__); |
| } |
| |
| if (state->internal == NULL) { |
| error = STV0900_INVALID_HANDLE; |
| return error; |
| } |
| |
| 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; |
| |
| return error; |
| } |
| |
| if (state->internal == NULL) { |
| error = STV0900_INVALID_HANDLE; |
| return error; |
| } |
| |
| intp = state->internal; |
| |
| intp->demod_mode = p_init->demod_mode; |
| stv0900_st_dvbs2_single(intp, intp->demod_mode, STV0900_DEMOD_1); |
| intp->chip_id = stv0900_read_reg(intp, R0900_MID); |
| intp->rolloff = p_init->rolloff; |
| intp->quartz = p_init->dmd_ref_clk; |
| |
| stv0900_write_bits(intp, F0900_P1_ROLLOFF_CONTROL, p_init->rolloff); |
| stv0900_write_bits(intp, F0900_P2_ROLLOFF_CONTROL, p_init->rolloff); |
| |
| intp->ts_config = p_init->ts_config; |
| if (intp->ts_config == NULL) |
| stv0900_set_ts_parallel_serial(intp, |
| p_init->path1_ts_clock, |
| p_init->path2_ts_clock); |
| else { |
| for (i = 0; intp->ts_config[i].addr != 0xffff; i++) |
| stv0900_write_reg(intp, |
| intp->ts_config[i].addr, |
| intp->ts_config[i].val); |
| |
| stv0900_write_bits(intp, F0900_P2_RST_HWARE, 1); |
| stv0900_write_bits(intp, F0900_P2_RST_HWARE, 0); |
| stv0900_write_bits(intp, F0900_P1_RST_HWARE, 1); |
| stv0900_write_bits(intp, F0900_P1_RST_HWARE, 0); |
| } |
| |
| stv0900_write_bits(intp, F0900_P1_TUN_MADDRESS, p_init->tun1_maddress); |
| switch (p_init->tuner1_adc) { |
| case 1: |
| stv0900_write_reg(intp, R0900_TSTTNR1, 0x26); |
| break; |
| default: |
| break; |
| } |
| |
| stv0900_write_bits(intp, F0900_P2_TUN_MADDRESS, p_init->tun2_maddress); |
| switch (p_init->tuner2_adc) { |
| case 1: |
| stv0900_write_reg(intp, R0900_TSTTNR3, 0x26); |
| break; |
| default: |
| break; |
| } |
| |
| stv0900_write_bits(intp, F0900_P1_TUN_IQSWAP, p_init->tun1_iq_inv); |
| stv0900_write_bits(intp, F0900_P2_TUN_IQSWAP, p_init->tun2_iq_inv); |
| stv0900_set_mclk(intp, 135000000); |
| msleep(3); |
| |
| switch (intp->clkmode) { |
| case 0: |
| case 2: |
| stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | intp->clkmode); |
| break; |
| default: |
| selosci = 0x02 & stv0900_read_reg(intp, R0900_SYNTCTRL); |
| stv0900_write_reg(intp, R0900_SYNTCTRL, 0x20 | selosci); |
| break; |
| } |
| msleep(3); |
| |
| intp->mclk = stv0900_get_mclk_freq(intp, intp->quartz); |
| if (intp->errs) |
| error = STV0900_I2C_ERROR; |
| |
| return error; |
| } |
| |
| static int stv0900_status(struct stv0900_internal *intp, |
| enum fe_stv0900_demod_num demod) |
| { |
| enum fe_stv0900_search_state demod_state; |
| int locked = FALSE; |
| u8 tsbitrate0_val, tsbitrate1_val; |
| s32 bitrate; |
| |
| demod_state = stv0900_get_bits(intp, HEADER_MODE); |
| switch (demod_state) { |
| case STV0900_SEARCH: |
| case STV0900_PLH_DETECTED: |
| default: |
| locked = FALSE; |
| break; |
| case STV0900_DVBS2_FOUND: |
| locked = stv0900_get_bits(intp, LOCK_DEFINITIF) && |
| stv0900_get_bits(intp, PKTDELIN_LOCK) && |
| stv0900_get_bits(intp, TSFIFO_LINEOK); |
| break; |
| case STV0900_DVBS_FOUND: |
| locked = stv0900_get_bits(intp, LOCK_DEFINITIF) && |
| stv0900_get_bits(intp, LOCKEDVIT) && |
| stv0900_get_bits(intp, TSFIFO_LINEOK); |
| break; |
| } |
| |
| dprintk("%s: locked = %d\n", __func__, locked); |
| |
| if (stvdebug) { |
| /* Print TS bitrate */ |
| tsbitrate0_val = stv0900_read_reg(intp, TSBITRATE0); |
| tsbitrate1_val = stv0900_read_reg(intp, TSBITRATE1); |
| /* Formula Bit rate = Mclk * px_tsfifo_bitrate / 16384 */ |
| bitrate = (stv0900_get_mclk_freq(intp, intp->quartz)/1000000) |
| * (tsbitrate1_val << 8 | tsbitrate0_val); |
| bitrate /= 16384; |
| dprintk("TS bitrate = %d Mbit/sec \n", bitrate); |
| }; |
| |
| 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 *intp = state->internal; |
| enum fe_stv0900_demod_num demod = state->demod; |
| 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("%s: ", __func__); |
| |
| if (!(INRANGE(100000, c->symbol_rate, 70000000))) |
| return DVBFE_ALGO_SEARCH_FAILED; |
| |
| if (state->config->set_ts_params) |
| state->config->set_ts_params(fe, 0); |
| |
| p_result.locked = FALSE; |
| p_search.path = 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; |
| |
| intp->srch_standard[demod] = p_search.standard; |
| intp->symbol_rate[demod] = p_search.symbol_rate; |
| intp->srch_range[demod] = p_search.search_range; |
| intp->freq[demod] = p_search.frequency; |
| intp->srch_algo[demod] = p_search.search_algo; |
| intp->srch_iq_inv[demod] = p_search.iq_inversion; |
| intp->fec[demod] = p_search.fec; |
| if ((stv0900_algo(fe) == STV0900_RANGEOK) && |
| (intp->errs == STV0900_NO_ERROR)) { |
| p_result.locked = intp->result[demod].locked; |
| p_result.standard = intp->result[demod].standard; |
| p_result.frequency = intp->result[demod].frequency; |
| p_result.symbol_rate = intp->result[demod].symbol_rate; |
| p_result.fec = intp->result[demod].fec; |
| p_result.modcode = intp->result[demod].modcode; |
| p_result.pilot = intp->result[demod].pilot; |
| p_result.frame_len = intp->result[demod].frame_len; |
| p_result.spectrum = intp->result[demod].spectrum; |
| p_result.rolloff = intp->result[demod].rolloff; |
| p_result.modulation = intp->result[demod].modulation; |
| } else { |
| p_result.locked = FALSE; |
| switch (intp->err[demod]) { |
| case STV0900_I2C_ERROR: |
| error = STV0900_I2C_ERROR; |
| break; |
| case STV0900_NO_ERROR: |
| default: |
| error = STV0900_SEARCH_FAILED; |
| break; |
| } |
| } |
| |
| if ((p_result.locked == TRUE) && (error == STV0900_NO_ERROR)) { |
| dprintk("Search Success\n"); |
| return DVBFE_ALGO_SEARCH_SUCCESS; |
| } else { |
| dprintk("Search Fail\n"); |
| return DVBFE_ALGO_SEARCH_FAILED; |
| } |
| |
| } |
| |
| 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 *intp = state->internal; |
| enum fe_stv0900_demod_num demod = state->demod; |
| |
| if (stop_ts == TRUE) |
| stv0900_write_bits(intp, RST_HWARE, 1); |
| else |
| stv0900_write_bits(intp, RST_HWARE, 0); |
| |
| return 0; |
| } |
| |
| static int stv0900_diseqc_init(struct dvb_frontend *fe) |
| { |
| struct stv0900_state *state = fe->demodulator_priv; |
| struct stv0900_internal *intp = state->internal; |
| enum fe_stv0900_demod_num demod = state->demod; |
| |
| stv0900_write_bits(intp, DISTX_MODE, state->config->diseqc_mode); |
| stv0900_write_bits(intp, DISEQC_RESET, 1); |
| stv0900_write_bits(intp, DISEQC_RESET, 0); |
| |
| return 0; |
| } |
| |
| static int stv0900_init(struct dvb_frontend *fe) |
| { |
| dprintk("%s\n", __func__); |
| |
| stv0900_stop_ts(fe, 1); |
| stv0900_diseqc_init(fe); |
| |
| return 0; |
| } |
| |
| static int stv0900_diseqc_send(struct stv0900_internal *intp , u8 *data, |
| u32 NbData, enum fe_stv0900_demod_num demod) |
| { |
| s32 i = 0; |
| |
| stv0900_write_bits(intp, DIS_PRECHARGE, 1); |
| while (i < NbData) { |
| while (stv0900_get_bits(intp, FIFO_FULL)) |
| ;/* checkpatch complains */ |
| stv0900_write_reg(intp, DISTXDATA, data[i]); |
| i++; |
| } |
| |
| stv0900_write_bits(intp, DIS_PRECHARGE, 0); |
| i = 0; |
| while ((stv0900_get_bits(intp, TX_IDLE) != 1) && (i < 10)) { |
| msleep(10); |
| i++; |
| } |
| |
| 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 *intp = state->internal; |
| enum fe_stv0900_demod_num demod = state->demod; |
| u8 data; |
| |
| |
| switch (burst) { |
| case SEC_MINI_A: |
| stv0900_write_bits(intp, DISTX_MODE, 3);/* Unmodulated */ |
| data = 0x00; |
| stv0900_diseqc_send(intp, &data, 1, state->demod); |
| break; |
| case SEC_MINI_B: |
| stv0900_write_bits(intp, DISTX_MODE, 2);/* Modulated */ |
| data = 0xff; |
| stv0900_diseqc_send(intp, &data, 1, state->demod); |
| 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 *intp = state->internal; |
| enum fe_stv0900_demod_num demod = state->demod; |
| s32 i = 0; |
| |
| reply->msg_len = 0; |
| |
| while ((stv0900_get_bits(intp, RX_END) != 1) && (i < 10)) { |
| msleep(10); |
| i++; |
| } |
| |
| if (stv0900_get_bits(intp, RX_END)) { |
| reply->msg_len = stv0900_get_bits(intp, FIFO_BYTENBR); |
| |
| for (i = 0; i < reply->msg_len; i++) |
| reply->msg[i] = stv0900_read_reg(intp, DISRXDATA); |
| } |
| |
| return 0; |
| } |
| |
| static int stv0900_set_tone(struct dvb_frontend *fe, fe_sec_tone_mode_t toneoff) |
| { |
| struct stv0900_state *state = fe->demodulator_priv; |
| struct stv0900_internal *intp = state->internal; |
| enum fe_stv0900_demod_num demod = state->demod; |
| |
| dprintk("%s: %s\n", __func__, ((toneoff == 0) ? "On" : "Off")); |
| |
| switch (toneoff) { |
| case SEC_TONE_ON: |
| /*Set the DiseqC mode to 22Khz _continues_ tone*/ |
| stv0900_write_bits(intp, DISTX_MODE, 0); |
| stv0900_write_bits(intp, DISEQC_RESET, 1); |
| /*release DiseqC reset to enable the 22KHz tone*/ |
| stv0900_write_bits(intp, DISEQC_RESET, 0); |
| break; |
| case SEC_TONE_OFF: |
| /*return diseqc mode to config->diseqc_mode. |
| Usually it's without _continues_ tone */ |
| stv0900_write_bits(intp, DISTX_MODE, |
| state->config->diseqc_mode); |
| /*maintain the DiseqC reset to disable the 22KHz tone*/ |
| stv0900_write_bits(intp, DISEQC_RESET, 1); |
| stv0900_write_bits(intp, DISEQC_RESET, 0); |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| static void stv0900_release(struct dvb_frontend *fe) |
| { |
| struct stv0900_state *state = fe->demodulator_priv; |
| |
| dprintk("%s\n", __func__); |
| |
| if ((--(state->internal->dmds_used)) <= 0) { |
| |
| dprintk("%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, |
| .read_ucblocks = stv0900_read_ucblocks, |
| }; |
| |
| 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 = config->demod_mode; |
| init_params.rolloff = STV0900_35; |
| init_params.path1_ts_clock = config->path1_mode; |
| init_params.tun1_maddress = config->tun1_maddress; |
| init_params.tun1_iq_inv = STV0900_IQ_NORMAL; |
| init_params.tuner1_adc = config->tun1_adc; |
| init_params.path2_ts_clock = config->path2_mode; |
| init_params.ts_config = config->ts_config_regs; |
| init_params.tun2_maddress = config->tun2_maddress; |
| init_params.tuner2_adc = config->tun2_adc; |
| init_params.tun2_iq_inv = 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"); |
