diff options
Diffstat (limited to 'drivers/media/dvb-frontends/dib7000p.c')
-rw-r--r-- | drivers/media/dvb-frontends/dib7000p.c | 2457 |
1 files changed, 2457 insertions, 0 deletions
diff --git a/drivers/media/dvb-frontends/dib7000p.c b/drivers/media/dvb-frontends/dib7000p.c new file mode 100644 index 000000000000..3e1eefada0e8 --- /dev/null +++ b/drivers/media/dvb-frontends/dib7000p.c @@ -0,0 +1,2457 @@ +/* + * Linux-DVB Driver for DiBcom's second generation DiB7000P (PC). + * + * Copyright (C) 2005-7 DiBcom (http://www.dibcom.fr/) + * + * 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, version 2. + */ +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/i2c.h> +#include <linux/mutex.h> + +#include "dvb_math.h" +#include "dvb_frontend.h" + +#include "dib7000p.h" + +static int debug; +module_param(debug, int, 0644); +MODULE_PARM_DESC(debug, "turn on debugging (default: 0)"); + +static int buggy_sfn_workaround; +module_param(buggy_sfn_workaround, int, 0644); +MODULE_PARM_DESC(buggy_sfn_workaround, "Enable work-around for buggy SFNs (default: 0)"); + +#define dprintk(args...) do { if (debug) { printk(KERN_DEBUG "DiB7000P: "); printk(args); printk("\n"); } } while (0) + +struct i2c_device { + struct i2c_adapter *i2c_adap; + u8 i2c_addr; +}; + +struct dib7000p_state { + struct dvb_frontend demod; + struct dib7000p_config cfg; + + u8 i2c_addr; + struct i2c_adapter *i2c_adap; + + struct dibx000_i2c_master i2c_master; + + u16 wbd_ref; + + u8 current_band; + u32 current_bandwidth; + struct dibx000_agc_config *current_agc; + u32 timf; + + u8 div_force_off:1; + u8 div_state:1; + u16 div_sync_wait; + + u8 agc_state; + + u16 gpio_dir; + u16 gpio_val; + + u8 sfn_workaround_active:1; + +#define SOC7090 0x7090 + u16 version; + + u16 tuner_enable; + struct i2c_adapter dib7090_tuner_adap; + + /* for the I2C transfer */ + struct i2c_msg msg[2]; + u8 i2c_write_buffer[4]; + u8 i2c_read_buffer[2]; + struct mutex i2c_buffer_lock; + + u8 input_mode_mpeg; +}; + +enum dib7000p_power_mode { + DIB7000P_POWER_ALL = 0, + DIB7000P_POWER_ANALOG_ADC, + DIB7000P_POWER_INTERFACE_ONLY, +}; + +/* dib7090 specific fonctions */ +static int dib7090_set_output_mode(struct dvb_frontend *fe, int mode); +static int dib7090_set_diversity_in(struct dvb_frontend *fe, int onoff); +static void dib7090_setDibTxMux(struct dib7000p_state *state, int mode); +static void dib7090_setHostBusMux(struct dib7000p_state *state, int mode); + +static u16 dib7000p_read_word(struct dib7000p_state *state, u16 reg) +{ + u16 ret; + + if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) { + dprintk("could not acquire lock"); + return 0; + } + + state->i2c_write_buffer[0] = reg >> 8; + state->i2c_write_buffer[1] = reg & 0xff; + + memset(state->msg, 0, 2 * sizeof(struct i2c_msg)); + state->msg[0].addr = state->i2c_addr >> 1; + state->msg[0].flags = 0; + state->msg[0].buf = state->i2c_write_buffer; + state->msg[0].len = 2; + state->msg[1].addr = state->i2c_addr >> 1; + state->msg[1].flags = I2C_M_RD; + state->msg[1].buf = state->i2c_read_buffer; + state->msg[1].len = 2; + + if (i2c_transfer(state->i2c_adap, state->msg, 2) != 2) + dprintk("i2c read error on %d", reg); + + ret = (state->i2c_read_buffer[0] << 8) | state->i2c_read_buffer[1]; + mutex_unlock(&state->i2c_buffer_lock); + return ret; +} + +static int dib7000p_write_word(struct dib7000p_state *state, u16 reg, u16 val) +{ + int ret; + + if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) { + dprintk("could not acquire lock"); + return -EINVAL; + } + + state->i2c_write_buffer[0] = (reg >> 8) & 0xff; + state->i2c_write_buffer[1] = reg & 0xff; + state->i2c_write_buffer[2] = (val >> 8) & 0xff; + state->i2c_write_buffer[3] = val & 0xff; + + memset(&state->msg[0], 0, sizeof(struct i2c_msg)); + state->msg[0].addr = state->i2c_addr >> 1; + state->msg[0].flags = 0; + state->msg[0].buf = state->i2c_write_buffer; + state->msg[0].len = 4; + + ret = (i2c_transfer(state->i2c_adap, state->msg, 1) != 1 ? + -EREMOTEIO : 0); + mutex_unlock(&state->i2c_buffer_lock); + return ret; +} + +static void dib7000p_write_tab(struct dib7000p_state *state, u16 * buf) +{ + u16 l = 0, r, *n; + n = buf; + l = *n++; + while (l) { + r = *n++; + + do { + dib7000p_write_word(state, r, *n++); + r++; + } while (--l); + l = *n++; + } +} + +static int dib7000p_set_output_mode(struct dib7000p_state *state, int mode) +{ + int ret = 0; + u16 outreg, fifo_threshold, smo_mode; + + outreg = 0; + fifo_threshold = 1792; + smo_mode = (dib7000p_read_word(state, 235) & 0x0050) | (1 << 1); + + dprintk("setting output mode for demod %p to %d", &state->demod, mode); + + switch (mode) { + case OUTMODE_MPEG2_PAR_GATED_CLK: + outreg = (1 << 10); /* 0x0400 */ + break; + case OUTMODE_MPEG2_PAR_CONT_CLK: + outreg = (1 << 10) | (1 << 6); /* 0x0440 */ + break; + case OUTMODE_MPEG2_SERIAL: + outreg = (1 << 10) | (2 << 6) | (0 << 1); /* 0x0480 */ + break; + case OUTMODE_DIVERSITY: + if (state->cfg.hostbus_diversity) + outreg = (1 << 10) | (4 << 6); /* 0x0500 */ + else + outreg = (1 << 11); + break; + case OUTMODE_MPEG2_FIFO: + smo_mode |= (3 << 1); + fifo_threshold = 512; + outreg = (1 << 10) | (5 << 6); + break; + case OUTMODE_ANALOG_ADC: + outreg = (1 << 10) | (3 << 6); + break; + case OUTMODE_HIGH_Z: + outreg = 0; + break; + default: + dprintk("Unhandled output_mode passed to be set for demod %p", &state->demod); + break; + } + + if (state->cfg.output_mpeg2_in_188_bytes) + smo_mode |= (1 << 5); + + ret |= dib7000p_write_word(state, 235, smo_mode); + ret |= dib7000p_write_word(state, 236, fifo_threshold); /* synchronous fread */ + if (state->version != SOC7090) + ret |= dib7000p_write_word(state, 1286, outreg); /* P_Div_active */ + + return ret; +} + +static int dib7000p_set_diversity_in(struct dvb_frontend *demod, int onoff) +{ + struct dib7000p_state *state = demod->demodulator_priv; + + if (state->div_force_off) { + dprintk("diversity combination deactivated - forced by COFDM parameters"); + onoff = 0; + dib7000p_write_word(state, 207, 0); + } else + dib7000p_write_word(state, 207, (state->div_sync_wait << 4) | (1 << 2) | (2 << 0)); + + state->div_state = (u8) onoff; + + if (onoff) { + dib7000p_write_word(state, 204, 6); + dib7000p_write_word(state, 205, 16); + /* P_dvsy_sync_mode = 0, P_dvsy_sync_enable=1, P_dvcb_comb_mode=2 */ + } else { + dib7000p_write_word(state, 204, 1); + dib7000p_write_word(state, 205, 0); + } + + return 0; +} + +static int dib7000p_set_power_mode(struct dib7000p_state *state, enum dib7000p_power_mode mode) +{ + /* by default everything is powered off */ + u16 reg_774 = 0x3fff, reg_775 = 0xffff, reg_776 = 0x0007, reg_899 = 0x0003, reg_1280 = (0xfe00) | (dib7000p_read_word(state, 1280) & 0x01ff); + + /* now, depending on the requested mode, we power on */ + switch (mode) { + /* power up everything in the demod */ + case DIB7000P_POWER_ALL: + reg_774 = 0x0000; + reg_775 = 0x0000; + reg_776 = 0x0; + reg_899 = 0x0; + if (state->version == SOC7090) + reg_1280 &= 0x001f; + else + reg_1280 &= 0x01ff; + break; + + case DIB7000P_POWER_ANALOG_ADC: + /* dem, cfg, iqc, sad, agc */ + reg_774 &= ~((1 << 15) | (1 << 14) | (1 << 11) | (1 << 10) | (1 << 9)); + /* nud */ + reg_776 &= ~((1 << 0)); + /* Dout */ + if (state->version != SOC7090) + reg_1280 &= ~((1 << 11)); + reg_1280 &= ~(1 << 6); + /* fall through wanted to enable the interfaces */ + + /* just leave power on the control-interfaces: GPIO and (I2C or SDIO) */ + case DIB7000P_POWER_INTERFACE_ONLY: /* TODO power up either SDIO or I2C */ + if (state->version == SOC7090) + reg_1280 &= ~((1 << 7) | (1 << 5)); + else + reg_1280 &= ~((1 << 14) | (1 << 13) | (1 << 12) | (1 << 10)); + break; + +/* TODO following stuff is just converted from the dib7000-driver - check when is used what */ + } + + dib7000p_write_word(state, 774, reg_774); + dib7000p_write_word(state, 775, reg_775); + dib7000p_write_word(state, 776, reg_776); + dib7000p_write_word(state, 1280, reg_1280); + if (state->version != SOC7090) + dib7000p_write_word(state, 899, reg_899); + + return 0; +} + +static void dib7000p_set_adc_state(struct dib7000p_state *state, enum dibx000_adc_states no) +{ + u16 reg_908 = 0, reg_909 = 0; + u16 reg; + + if (state->version != SOC7090) { + reg_908 = dib7000p_read_word(state, 908); + reg_909 = dib7000p_read_word(state, 909); + } + + switch (no) { + case DIBX000_SLOW_ADC_ON: + if (state->version == SOC7090) { + reg = dib7000p_read_word(state, 1925); + + dib7000p_write_word(state, 1925, reg | (1 << 4) | (1 << 2)); /* en_slowAdc = 1 & reset_sladc = 1 */ + + reg = dib7000p_read_word(state, 1925); /* read acces to make it works... strange ... */ + msleep(200); + dib7000p_write_word(state, 1925, reg & ~(1 << 4)); /* en_slowAdc = 1 & reset_sladc = 0 */ + + reg = dib7000p_read_word(state, 72) & ~((0x3 << 14) | (0x3 << 12)); + dib7000p_write_word(state, 72, reg | (1 << 14) | (3 << 12) | 524); /* ref = Vin1 => Vbg ; sel = Vin0 or Vin3 ; (Vin2 = Vcm) */ + } else { + reg_909 |= (1 << 1) | (1 << 0); + dib7000p_write_word(state, 909, reg_909); + reg_909 &= ~(1 << 1); + } + break; + + case DIBX000_SLOW_ADC_OFF: + if (state->version == SOC7090) { + reg = dib7000p_read_word(state, 1925); + dib7000p_write_word(state, 1925, (reg & ~(1 << 2)) | (1 << 4)); /* reset_sladc = 1 en_slowAdc = 0 */ + } else + reg_909 |= (1 << 1) | (1 << 0); + break; + + case DIBX000_ADC_ON: + reg_908 &= 0x0fff; + reg_909 &= 0x0003; + break; + + case DIBX000_ADC_OFF: + reg_908 |= (1 << 14) | (1 << 13) | (1 << 12); + reg_909 |= (1 << 5) | (1 << 4) | (1 << 3) | (1 << 2); + break; + + case DIBX000_VBG_ENABLE: + reg_908 &= ~(1 << 15); + break; + + case DIBX000_VBG_DISABLE: + reg_908 |= (1 << 15); + break; + + default: + break; + } + +// dprintk( "908: %x, 909: %x\n", reg_908, reg_909); + + reg_909 |= (state->cfg.disable_sample_and_hold & 1) << 4; + reg_908 |= (state->cfg.enable_current_mirror & 1) << 7; + + if (state->version != SOC7090) { + dib7000p_write_word(state, 908, reg_908); + dib7000p_write_word(state, 909, reg_909); + } +} + +static int dib7000p_set_bandwidth(struct dib7000p_state *state, u32 bw) +{ + u32 timf; + + // store the current bandwidth for later use + state->current_bandwidth = bw; + + if (state->timf == 0) { + dprintk("using default timf"); + timf = state->cfg.bw->timf; + } else { + dprintk("using updated timf"); + timf = state->timf; + } + + timf = timf * (bw / 50) / 160; + + dib7000p_write_word(state, 23, (u16) ((timf >> 16) & 0xffff)); + dib7000p_write_word(state, 24, (u16) ((timf) & 0xffff)); + + return 0; +} + +static int dib7000p_sad_calib(struct dib7000p_state *state) +{ +/* internal */ + dib7000p_write_word(state, 73, (0 << 1) | (0 << 0)); + + if (state->version == SOC7090) + dib7000p_write_word(state, 74, 2048); + else + dib7000p_write_word(state, 74, 776); + + /* do the calibration */ + dib7000p_write_word(state, 73, (1 << 0)); + dib7000p_write_word(state, 73, (0 << 0)); + + msleep(1); + + return 0; +} + +int dib7000p_set_wbd_ref(struct dvb_frontend *demod, u16 value) +{ + struct dib7000p_state *state = demod->demodulator_priv; + if (value > 4095) + value = 4095; + state->wbd_ref = value; + return dib7000p_write_word(state, 105, (dib7000p_read_word(state, 105) & 0xf000) | value); +} +EXPORT_SYMBOL(dib7000p_set_wbd_ref); + +int dib7000p_get_agc_values(struct dvb_frontend *fe, + u16 *agc_global, u16 *agc1, u16 *agc2, u16 *wbd) +{ + struct dib7000p_state *state = fe->demodulator_priv; + + if (agc_global != NULL) + *agc_global = dib7000p_read_word(state, 394); + if (agc1 != NULL) + *agc1 = dib7000p_read_word(state, 392); + if (agc2 != NULL) + *agc2 = dib7000p_read_word(state, 393); + if (wbd != NULL) + *wbd = dib7000p_read_word(state, 397); + + return 0; +} +EXPORT_SYMBOL(dib7000p_get_agc_values); + +static void dib7000p_reset_pll(struct dib7000p_state *state) +{ + struct dibx000_bandwidth_config *bw = &state->cfg.bw[0]; + u16 clk_cfg0; + + if (state->version == SOC7090) { + dib7000p_write_word(state, 1856, (!bw->pll_reset << 13) | (bw->pll_range << 12) | (bw->pll_ratio << 6) | (bw->pll_prediv)); + + while (((dib7000p_read_word(state, 1856) >> 15) & 0x1) != 1) + ; + + dib7000p_write_word(state, 1857, dib7000p_read_word(state, 1857) | (!bw->pll_bypass << 15)); + } else { + /* force PLL bypass */ + clk_cfg0 = (1 << 15) | ((bw->pll_ratio & 0x3f) << 9) | + (bw->modulo << 7) | (bw->ADClkSrc << 6) | (bw->IO_CLK_en_core << 5) | (bw->bypclk_div << 2) | (bw->enable_refdiv << 1) | (0 << 0); + + dib7000p_write_word(state, 900, clk_cfg0); + + /* P_pll_cfg */ + dib7000p_write_word(state, 903, (bw->pll_prediv << 5) | (((bw->pll_ratio >> 6) & 0x3) << 3) | (bw->pll_range << 1) | bw->pll_reset); + clk_cfg0 = (bw->pll_bypass << 15) | (clk_cfg0 & 0x7fff); + dib7000p_write_word(state, 900, clk_cfg0); + } + + dib7000p_write_word(state, 18, (u16) (((bw->internal * 1000) >> 16) & 0xffff)); + dib7000p_write_word(state, 19, (u16) ((bw->internal * 1000) & 0xffff)); + dib7000p_write_word(state, 21, (u16) ((bw->ifreq >> 16) & 0xffff)); + dib7000p_write_word(state, 22, (u16) ((bw->ifreq) & 0xffff)); + + dib7000p_write_word(state, 72, bw->sad_cfg); +} + +static u32 dib7000p_get_internal_freq(struct dib7000p_state *state) +{ + u32 internal = (u32) dib7000p_read_word(state, 18) << 16; + internal |= (u32) dib7000p_read_word(state, 19); + internal /= 1000; + + return internal; +} + +int dib7000p_update_pll(struct dvb_frontend *fe, struct dibx000_bandwidth_config *bw) +{ + struct dib7000p_state *state = fe->demodulator_priv; + u16 reg_1857, reg_1856 = dib7000p_read_word(state, 1856); + u8 loopdiv, prediv; + u32 internal, xtal; + + /* get back old values */ + prediv = reg_1856 & 0x3f; + loopdiv = (reg_1856 >> 6) & 0x3f; + + if ((bw != NULL) && (bw->pll_prediv != prediv || bw->pll_ratio != loopdiv)) { + dprintk("Updating pll (prediv: old = %d new = %d ; loopdiv : old = %d new = %d)", prediv, bw->pll_prediv, loopdiv, bw->pll_ratio); + reg_1856 &= 0xf000; + reg_1857 = dib7000p_read_word(state, 1857); + dib7000p_write_word(state, 1857, reg_1857 & ~(1 << 15)); + + dib7000p_write_word(state, 1856, reg_1856 | ((bw->pll_ratio & 0x3f) << 6) | (bw->pll_prediv & 0x3f)); + + /* write new system clk into P_sec_len */ + internal = dib7000p_get_internal_freq(state); + xtal = (internal / loopdiv) * prediv; + internal = 1000 * (xtal / bw->pll_prediv) * bw->pll_ratio; /* new internal */ + dib7000p_write_word(state, 18, (u16) ((internal >> 16) & 0xffff)); + dib7000p_write_word(state, 19, (u16) (internal & 0xffff)); + + dib7000p_write_word(state, 1857, reg_1857 | (1 << 15)); + + while (((dib7000p_read_word(state, 1856) >> 15) & 0x1) != 1) + dprintk("Waiting for PLL to lock"); + + return 0; + } + return -EIO; +} +EXPORT_SYMBOL(dib7000p_update_pll); + +static int dib7000p_reset_gpio(struct dib7000p_state *st) +{ + /* reset the GPIOs */ + dprintk("gpio dir: %x: val: %x, pwm_pos: %x", st->gpio_dir, st->gpio_val, st->cfg.gpio_pwm_pos); + + dib7000p_write_word(st, 1029, st->gpio_dir); + dib7000p_write_word(st, 1030, st->gpio_val); + + /* TODO 1031 is P_gpio_od */ + + dib7000p_write_word(st, 1032, st->cfg.gpio_pwm_pos); + + dib7000p_write_word(st, 1037, st->cfg.pwm_freq_div); + return 0; +} + +static int dib7000p_cfg_gpio(struct dib7000p_state *st, u8 num, u8 dir, u8 val) +{ + st->gpio_dir = dib7000p_read_word(st, 1029); + st->gpio_dir &= ~(1 << num); /* reset the direction bit */ + st->gpio_dir |= (dir & 0x1) << num; /* set the new direction */ + dib7000p_write_word(st, 1029, st->gpio_dir); + + st->gpio_val = dib7000p_read_word(st, 1030); + st->gpio_val &= ~(1 << num); /* reset the direction bit */ + st->gpio_val |= (val & 0x01) << num; /* set the new value */ + dib7000p_write_word(st, 1030, st->gpio_val); + + return 0; +} + +int dib7000p_set_gpio(struct dvb_frontend *demod, u8 num, u8 dir, u8 val) +{ + struct dib7000p_state *state = demod->demodulator_priv; + return dib7000p_cfg_gpio(state, num, dir, val); +} +EXPORT_SYMBOL(dib7000p_set_gpio); + +static u16 dib7000p_defaults[] = { + // auto search configuration + 3, 2, + 0x0004, + (1<<3)|(1<<11)|(1<<12)|(1<<13), + 0x0814, /* Equal Lock */ + + 12, 6, + 0x001b, + 0x7740, + 0x005b, + 0x8d80, + 0x01c9, + 0xc380, + 0x0000, + 0x0080, + 0x0000, + 0x0090, + 0x0001, + 0xd4c0, + + 1, 26, + 0x6680, + + /* set ADC level to -16 */ + 11, 79, + (1 << 13) - 825 - 117, + (1 << 13) - 837 - 117, + (1 << 13) - 811 - 117, + (1 << 13) - 766 - 117, + (1 << 13) - 737 - 117, + (1 << 13) - 693 - 117, + (1 << 13) - 648 - 117, + (1 << 13) - 619 - 117, + (1 << 13) - 575 - 117, + (1 << 13) - 531 - 117, + (1 << 13) - 501 - 117, + + 1, 142, + 0x0410, + + /* disable power smoothing */ + 8, 145, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + 0, + + 1, 154, + 1 << 13, + + 1, 168, + 0x0ccd, + + 1, 183, + 0x200f, + + 1, 212, + 0x169, + + 5, 187, + 0x023d, + 0x00a4, + 0x00a4, + 0x7ff0, + 0x3ccc, + + 1, 198, + 0x800, + + 1, 222, + 0x0010, + + 1, 235, + 0x0062, + + 0, +}; + +static int dib7000p_demod_reset(struct dib7000p_state *state) +{ + dib7000p_set_power_mode(state, DIB7000P_POWER_ALL); + + if (state->version == SOC7090) + dibx000_reset_i2c_master(&state->i2c_master); + + dib7000p_set_adc_state(state, DIBX000_VBG_ENABLE); + + /* restart all parts */ + dib7000p_write_word(state, 770, 0xffff); + dib7000p_write_word(state, 771, 0xffff); + dib7000p_write_word(state, 772, 0x001f); + dib7000p_write_word(state, 1280, 0x001f - ((1 << 4) | (1 << 3))); + + dib7000p_write_word(state, 770, 0); + dib7000p_write_word(state, 771, 0); + dib7000p_write_word(state, 772, 0); + dib7000p_write_word(state, 1280, 0); + + if (state->version != SOC7090) { + dib7000p_write_word(state, 898, 0x0003); + dib7000p_write_word(state, 898, 0); + } + + /* default */ + dib7000p_reset_pll(state); + + if (dib7000p_reset_gpio(state) != 0) + dprintk("GPIO reset was not successful."); + + if (state->version == SOC7090) { + dib7000p_write_word(state, 899, 0); + + /* impulse noise */ + dib7000p_write_word(state, 42, (1<<5) | 3); /* P_iqc_thsat_ipc = 1 ; P_iqc_win2 = 3 */ + dib7000p_write_word(state, 43, 0x2d4); /*-300 fag P_iqc_dect_min = -280 */ + dib7000p_write_word(state, 44, 300); /* 300 fag P_iqc_dect_min = +280 */ + dib7000p_write_word(state, 273, (0<<6) | 30); + } + if (dib7000p_set_output_mode(state, OUTMODE_HIGH_Z) != 0) + dprintk("OUTPUT_MODE could not be reset."); + + dib7000p_set_adc_state(state, DIBX000_SLOW_ADC_ON); + dib7000p_sad_calib(state); + dib7000p_set_adc_state(state, DIBX000_SLOW_ADC_OFF); + + /* unforce divstr regardless whether i2c enumeration was done or not */ + dib7000p_write_word(state, 1285, dib7000p_read_word(state, 1285) & ~(1 << 1)); + + dib7000p_set_bandwidth(state, 8000); + + if (state->version == SOC7090) { + dib7000p_write_word(state, 36, 0x0755);/* P_iqc_impnc_on =1 & P_iqc_corr_inh = 1 for impulsive noise */ + } else { + if (state->cfg.tuner_is_baseband) + dib7000p_write_word(state, 36, 0x0755); + else + dib7000p_write_word(state, 36, 0x1f55); + } + + dib7000p_write_tab(state, dib7000p_defaults); + if (state->version != SOC7090) { + dib7000p_write_word(state, 901, 0x0006); + dib7000p_write_word(state, 902, (3 << 10) | (1 << 6)); + dib7000p_write_word(state, 905, 0x2c8e); + } + + dib7000p_set_power_mode(state, DIB7000P_POWER_INTERFACE_ONLY); + + return 0; +} + +static void dib7000p_pll_clk_cfg(struct dib7000p_state *state) +{ + u16 tmp = 0; + tmp = dib7000p_read_word(state, 903); + dib7000p_write_word(state, 903, (tmp | 0x1)); + tmp = dib7000p_read_word(state, 900); + dib7000p_write_word(state, 900, (tmp & 0x7fff) | (1 << 6)); +} + +static void dib7000p_restart_agc(struct dib7000p_state *state) +{ + // P_restart_iqc & P_restart_agc + dib7000p_write_word(state, 770, (1 << 11) | (1 << 9)); + dib7000p_write_word(state, 770, 0x0000); +} + +static int dib7000p_update_lna(struct dib7000p_state *state) +{ + u16 dyn_gain; + + if (state->cfg.update_lna) { + dyn_gain = dib7000p_read_word(state, 394); + if (state->cfg.update_lna(&state->demod, dyn_gain)) { + dib7000p_restart_agc(state); + return 1; + } + } + + return 0; +} + +static int dib7000p_set_agc_config(struct dib7000p_state *state, u8 band) +{ + struct dibx000_agc_config *agc = NULL; + int i; + if (state->current_band == band && state->current_agc != NULL) + return 0; + state->current_band = band; + + for (i = 0; i < state->cfg.agc_config_count; i++) + if (state->cfg.agc[i].band_caps & band) { + agc = &state->cfg.agc[i]; + break; + } + + if (agc == NULL) { + dprintk("no valid AGC configuration found for band 0x%02x", band); + return -EINVAL; + } + + state->current_agc = agc; + + /* AGC */ + dib7000p_write_word(state, 75, agc->setup); + dib7000p_write_word(state, 76, agc->inv_gain); + dib7000p_write_word(state, 77, agc->time_stabiliz); + dib7000p_write_word(state, 100, (agc->alpha_level << 12) | agc->thlock); + + // Demod AGC loop configuration + dib7000p_write_word(state, 101, (agc->alpha_mant << 5) | agc->alpha_exp); + dib7000p_write_word(state, 102, (agc->beta_mant << 6) | agc->beta_exp); + + /* AGC continued */ + dprintk("WBD: ref: %d, sel: %d, active: %d, alpha: %d", + state->wbd_ref != 0 ? state->wbd_ref : agc->wbd_ref, agc->wbd_sel, !agc->perform_agc_softsplit, agc->wbd_sel); + + if (state->wbd_ref != 0) + dib7000p_write_word(state, 105, (agc->wbd_inv << 12) | state->wbd_ref); + else + dib7000p_write_word(state, 105, (agc->wbd_inv << 12) | agc->wbd_ref); + + dib7000p_write_word(state, 106, (agc->wbd_sel << 13) | (agc->wbd_alpha << 9) | (agc->perform_agc_softsplit << 8)); + + dib7000p_write_word(state, 107, agc->agc1_max); + dib7000p_write_word(state, 108, agc->agc1_min); + dib7000p_write_word(state, 109, agc->agc2_max); + dib7000p_write_word(state, 110, agc->agc2_min); + dib7000p_write_word(state, 111, (agc->agc1_pt1 << 8) | agc->agc1_pt2); + dib7000p_write_word(state, 112, agc->agc1_pt3); + dib7000p_write_word(state, 113, (agc->agc1_slope1 << 8) | agc->agc1_slope2); + dib7000p_write_word(state, 114, (agc->agc2_pt1 << 8) | agc->agc2_pt2); + dib7000p_write_word(state, 115, (agc->agc2_slope1 << 8) | agc->agc2_slope2); + return 0; +} + +static void dib7000p_set_dds(struct dib7000p_state *state, s32 offset_khz) +{ + u32 internal = dib7000p_get_internal_freq(state); + s32 unit_khz_dds_val = 67108864 / (internal); /* 2**26 / Fsampling is the unit 1KHz offset */ + u32 abs_offset_khz = ABS(offset_khz); + u32 dds = state->cfg.bw->ifreq & 0x1ffffff; + u8 invert = !!(state->cfg.bw->ifreq & (1 << 25)); + + dprintk("setting a frequency offset of %dkHz internal freq = %d invert = %d", offset_khz, internal, invert); + + if (offset_khz < 0) + unit_khz_dds_val *= -1; + + /* IF tuner */ + if (invert) + dds -= (abs_offset_khz * unit_khz_dds_val); /* /100 because of /100 on the unit_khz_dds_val line calc for better accuracy */ + else + dds += (abs_offset_khz * unit_khz_dds_val); + + if (abs_offset_khz <= (internal / 2)) { /* Max dds offset is the half of the demod freq */ + dib7000p_write_word(state, 21, (u16) (((dds >> 16) & 0x1ff) | (0 << 10) | (invert << 9))); + dib7000p_write_word(state, 22, (u16) (dds & 0xffff)); + } +} + +static int dib7000p_agc_startup(struct dvb_frontend *demod) +{ + struct dtv_frontend_properties *ch = &demod->dtv_property_cache; + struct dib7000p_state *state = demod->demodulator_priv; + int ret = -1; + u8 *agc_state = &state->agc_state; + u8 agc_split; + u16 reg; + u32 upd_demod_gain_period = 0x1000; + + switch (state->agc_state) { + case 0: + dib7000p_set_power_mode(state, DIB7000P_POWER_ALL); + if (state->version == SOC7090) { + reg = dib7000p_read_word(state, 0x79b) & 0xff00; + dib7000p_write_word(state, 0x79a, upd_demod_gain_period & 0xFFFF); /* lsb */ + dib7000p_write_word(state, 0x79b, reg | (1 << 14) | ((upd_demod_gain_period >> 16) & 0xFF)); + + /* enable adc i & q */ + reg = dib7000p_read_word(state, 0x780); + dib7000p_write_word(state, 0x780, (reg | (0x3)) & (~(1 << 7))); + } else { + dib7000p_set_adc_state(state, DIBX000_ADC_ON); + dib7000p_pll_clk_cfg(state); + } + + if (dib7000p_set_agc_config(state, BAND_OF_FREQUENCY(ch->frequency / 1000)) != 0) + return -1; + + dib7000p_set_dds(state, 0); + ret = 7; + (*agc_state)++; + break; + + case 1: + if (state->cfg.agc_control) + state->cfg.agc_control(&state->demod, 1); + + dib7000p_write_word(state, 78, 32768); + if (!state->current_agc->perform_agc_softsplit) { + /* we are using the wbd - so slow AGC startup */ + /* force 0 split on WBD and restart AGC */ + dib7000p_write_word(state, 106, (state->current_agc->wbd_sel << 13) | (state->current_agc->wbd_alpha << 9) | (1 << 8)); + (*agc_state)++; + ret = 5; + } else { + /* default AGC startup */ + (*agc_state) = 4; + /* wait AGC rough lock time */ + ret = 7; + } + + dib7000p_restart_agc(state); + break; + + case 2: /* fast split search path after 5sec */ + dib7000p_write_word(state, 75, state->current_agc->setup | (1 << 4)); /* freeze AGC loop */ + dib7000p_write_word(state, 106, (state->current_agc->wbd_sel << 13) | (2 << 9) | (0 << 8)); /* fast split search 0.25kHz */ + (*agc_state)++; + ret = 14; + break; + + case 3: /* split search ended */ + agc_split = (u8) dib7000p_read_word(state, 396); /* store the split value for the next time */ + dib7000p_write_word(state, 78, dib7000p_read_word(state, 394)); /* set AGC gain start value */ + + dib7000p_write_word(state, 75, state->current_agc->setup); /* std AGC loop */ + dib7000p_write_word(state, 106, (state->current_agc->wbd_sel << 13) | (state->current_agc->wbd_alpha << 9) | agc_split); /* standard split search */ + + dib7000p_restart_agc(state); + + dprintk("SPLIT %p: %hd", demod, agc_split); + + (*agc_state)++; + ret = 5; + break; + + case 4: /* LNA startup */ + ret = 7; + + if (dib7000p_update_lna(state)) + ret = 5; + else + (*agc_state)++; + break; + + case 5: + if (state->cfg.agc_control) + state->cfg.agc_control(&state->demod, 0); + (*agc_state)++; + break; + default: + break; + } + return ret; +} + +static void dib7000p_update_timf(struct dib7000p_state *state) +{ + u32 timf = (dib7000p_read_word(state, 427) << 16) | dib7000p_read_word(state, 428); + state->timf = timf * 160 / (state->current_bandwidth / 50); + dib7000p_write_word(state, 23, (u16) (timf >> 16)); + dib7000p_write_word(state, 24, (u16) (timf & 0xffff)); + dprintk("updated timf_frequency: %d (default: %d)", state->timf, state->cfg.bw->timf); + +} + +u32 dib7000p_ctrl_timf(struct dvb_frontend *fe, u8 op, u32 timf) +{ + struct dib7000p_state *state = fe->demodulator_priv; + switch (op) { + case DEMOD_TIMF_SET: + state->timf = timf; + break; + case DEMOD_TIMF_UPDATE: + dib7000p_update_timf(state); + break; + case DEMOD_TIMF_GET: + break; + } + dib7000p_set_bandwidth(state, state->current_bandwidth); + return state->timf; +} +EXPORT_SYMBOL(dib7000p_ctrl_timf); + +static void dib7000p_set_channel(struct dib7000p_state *state, + struct dtv_frontend_properties *ch, u8 seq) +{ + u16 value, est[4]; + + dib7000p_set_bandwidth(state, BANDWIDTH_TO_KHZ(ch->bandwidth_hz)); + + /* nfft, guard, qam, alpha */ + value = 0; + switch (ch->transmission_mode) { + case TRANSMISSION_MODE_2K: + value |= (0 << 7); + break; + case TRANSMISSION_MODE_4K: + value |= (2 << 7); + break; + default: + case TRANSMISSION_MODE_8K: + value |= (1 << 7); + break; + } + switch (ch->guard_interval) { + case GUARD_INTERVAL_1_32: + value |= (0 << 5); + break; + case GUARD_INTERVAL_1_16: + value |= (1 << 5); + break; + case GUARD_INTERVAL_1_4: + value |= (3 << 5); + break; + default: + case GUARD_INTERVAL_1_8: + value |= (2 << 5); + break; + } + switch (ch->modulation) { + case QPSK: + value |= (0 << 3); + break; + case QAM_16: + value |= (1 << 3); + break; + default: + case QAM_64: + value |= (2 << 3); + break; + } + switch (HIERARCHY_1) { + case HIERARCHY_2: + value |= 2; + break; + case HIERARCHY_4: + value |= 4; + break; + default: + case HIERARCHY_1: + value |= 1; + break; + } + dib7000p_write_word(state, 0, value); + dib7000p_write_word(state, 5, (seq << 4) | 1); /* do not force tps, search list 0 */ + + /* P_dintl_native, P_dintlv_inv, P_hrch, P_code_rate, P_select_hp */ + value = 0; + if (1 != 0) + value |= (1 << 6); + if (ch->hierarchy == 1) + value |= (1 << 4); + if (1 == 1) + value |= 1; + switch ((ch->hierarchy == 0 || 1 == 1) ? ch->code_rate_HP : ch->code_rate_LP) { + case FEC_2_3: + value |= (2 << 1); + break; + case FEC_3_4: + value |= (3 << 1); + break; + case FEC_5_6: + value |= (5 << 1); + break; + case FEC_7_8: + value |= (7 << 1); + break; + default: + case FEC_1_2: + value |= (1 << 1); + break; + } + dib7000p_write_word(state, 208, value); + + /* offset loop parameters */ + dib7000p_write_word(state, 26, 0x6680); + dib7000p_write_word(state, 32, 0x0003); + dib7000p_write_word(state, 29, 0x1273); + dib7000p_write_word(state, 33, 0x0005); + + /* P_dvsy_sync_wait */ + switch (ch->transmission_mode) { + case TRANSMISSION_MODE_8K: + value = 256; + break; + case TRANSMISSION_MODE_4K: + value = 128; + break; + case TRANSMISSION_MODE_2K: + default: + value = 64; + break; + } + switch (ch->guard_interval) { + case GUARD_INTERVAL_1_16: + value *= 2; + break; + case GUARD_INTERVAL_1_8: + value *= 4; + break; + case GUARD_INTERVAL_1_4: + value *= 8; + break; + default: + case GUARD_INTERVAL_1_32: + value *= 1; + break; + } + if (state->cfg.diversity_delay == 0) + state->div_sync_wait = (value * 3) / 2 + 48; + else + state->div_sync_wait = (value * 3) / 2 + state->cfg.diversity_delay; + + /* deactive the possibility of diversity reception if extended interleaver */ + state->div_force_off = !1 && ch->transmission_mode != TRANSMISSION_MODE_8K; + dib7000p_set_diversity_in(&state->demod, state->div_state); + + /* channel estimation fine configuration */ + switch (ch->modulation) { + case QAM_64: + est[0] = 0x0148; /* P_adp_regul_cnt 0.04 */ + est[1] = 0xfff0; /* P_adp_noise_cnt -0.002 */ + est[2] = 0x00a4; /* P_adp_regul_ext 0.02 */ + est[3] = 0xfff8; /* P_adp_noise_ext -0.001 */ + break; + case QAM_16: + est[0] = 0x023d; /* P_adp_regul_cnt 0.07 */ + est[1] = 0xffdf; /* P_adp_noise_cnt -0.004 */ + est[2] = 0x00a4; /* P_adp_regul_ext 0.02 */ + est[3] = 0xfff0; /* P_adp_noise_ext -0.002 */ + break; + default: + est[0] = 0x099a; /* P_adp_regul_cnt 0.3 */ + est[1] = 0xffae; /* P_adp_noise_cnt -0.01 */ + est[2] = 0x0333; /* P_adp_regul_ext 0.1 */ + est[3] = 0xfff8; /* P_adp_noise_ext -0.002 */ + break; + } + for (value = 0; value < 4; value++) + dib7000p_write_word(state, 187 + value, est[value]); +} + +static int dib7000p_autosearch_start(struct dvb_frontend *demod) +{ + struct dtv_frontend_properties *ch = &demod->dtv_property_cache; + struct dib7000p_state *state = demod->demodulator_priv; + struct dtv_frontend_properties schan; + u32 value, factor; + u32 internal = dib7000p_get_internal_freq(state); + + schan = *ch; + schan.modulation = QAM_64; + schan.guard_interval = GUARD_INTERVAL_1_32; + schan.transmission_mode = TRANSMISSION_MODE_8K; + schan.code_rate_HP = FEC_2_3; + schan.code_rate_LP = FEC_3_4; + schan.hierarchy = 0; + + dib7000p_set_channel(state, &schan, 7); + + factor = BANDWIDTH_TO_KHZ(ch->bandwidth_hz); + if (factor >= 5000) { + if (state->version == SOC7090) + factor = 2; + else + factor = 1; + } else + factor = 6; + + value = 30 * internal * factor; + dib7000p_write_word(state, 6, (u16) ((value >> 16) & 0xffff)); + dib7000p_write_word(state, 7, (u16) (value & 0xffff)); + value = 100 * internal * factor; + dib7000p_write_word(state, 8, (u16) ((value >> 16) & 0xffff)); + dib7000p_write_word(state, 9, (u16) (value & 0xffff)); + value = 500 * internal * factor; + dib7000p_write_word(state, 10, (u16) ((value >> 16) & 0xffff)); + dib7000p_write_word(state, 11, (u16) (value & 0xffff)); + + value = dib7000p_read_word(state, 0); + dib7000p_write_word(state, 0, (u16) ((1 << 9) | value)); + dib7000p_read_word(state, 1284); + dib7000p_write_word(state, 0, (u16) value); + + return 0; +} + +static int dib7000p_autosearch_is_irq(struct dvb_frontend *demod) +{ + struct dib7000p_state *state = demod->demodulator_priv; + u16 irq_pending = dib7000p_read_word(state, 1284); + + if (irq_pending & 0x1) + return 1; + + if (irq_pending & 0x2) + return 2; |