diff options
Diffstat (limited to 'drivers/media/dvb/frontends/dib0090.c')
| -rw-r--r-- | drivers/media/dvb/frontends/dib0090.c | 1523 |
1 files changed, 0 insertions, 1523 deletions
diff --git a/drivers/media/dvb/frontends/dib0090.c b/drivers/media/dvb/frontends/dib0090.c deleted file mode 100644 index 65240b7801e..00000000000 --- a/drivers/media/dvb/frontends/dib0090.c +++ /dev/null @@ -1,1523 +0,0 @@ -/* - * Linux-DVB Driver for DiBcom's DiB0090 base-band RF Tuner. - * - * Copyright (C) 2005-9 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; 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. - * - * - * This code is more or less generated from another driver, please - * excuse some codingstyle oddities. - * - */ - -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/i2c.h> - -#include "dvb_frontend.h" - -#include "dib0090.h" -#include "dibx000_common.h" - -static int debug; -module_param(debug, int, 0644); -MODULE_PARM_DESC(debug, "turn on debugging (default: 0)"); - -#define dprintk(args...) do { \ - if (debug) { \ - printk(KERN_DEBUG "DiB0090: "); \ - printk(args); \ - printk("\n"); \ - } \ -} while (0) - -#define CONFIG_SYS_ISDBT -#define CONFIG_BAND_CBAND -#define CONFIG_BAND_VHF -#define CONFIG_BAND_UHF -#define CONFIG_DIB0090_USE_PWM_AGC - -#define EN_LNA0 0x8000 -#define EN_LNA1 0x4000 -#define EN_LNA2 0x2000 -#define EN_LNA3 0x1000 -#define EN_MIX0 0x0800 -#define EN_MIX1 0x0400 -#define EN_MIX2 0x0200 -#define EN_MIX3 0x0100 -#define EN_IQADC 0x0040 -#define EN_PLL 0x0020 -#define EN_TX 0x0010 -#define EN_BB 0x0008 -#define EN_LO 0x0004 -#define EN_BIAS 0x0001 - -#define EN_IQANA 0x0002 -#define EN_DIGCLK 0x0080 /* not in the 0x24 reg, only in 0x1b */ -#define EN_CRYSTAL 0x0002 - -#define EN_UHF 0x22E9 -#define EN_VHF 0x44E9 -#define EN_LBD 0x11E9 -#define EN_SBD 0x44E9 -#define EN_CAB 0x88E9 - -#define pgm_read_word(w) (*w) - -struct dc_calibration; - -struct dib0090_tuning { - u32 max_freq; /* for every frequency less than or equal to that field: this information is correct */ - u8 switch_trim; - u8 lna_tune; - u8 lna_bias; - u16 v2i; - u16 mix; - u16 load; - u16 tuner_enable; -}; - -struct dib0090_pll { - u32 max_freq; /* for every frequency less than or equal to that field: this information is correct */ - u8 vco_band; - u8 hfdiv_code; - u8 hfdiv; - u8 topresc; -}; - -struct dib0090_state { - struct i2c_adapter *i2c; - struct dvb_frontend *fe; - const struct dib0090_config *config; - - u8 current_band; - u16 revision; - enum frontend_tune_state tune_state; - u32 current_rf; - - u16 wbd_offset; - s16 wbd_target; /* in dB */ - - s16 rf_gain_limit; /* take-over-point: where to split between bb and rf gain */ - s16 current_gain; /* keeps the currently programmed gain */ - u8 agc_step; /* new binary search */ - - u16 gain[2]; /* for channel monitoring */ - - const u16 *rf_ramp; - const u16 *bb_ramp; - - /* for the software AGC ramps */ - u16 bb_1_def; - u16 rf_lt_def; - u16 gain_reg[4]; - - /* for the captrim/dc-offset search */ - s8 step; - s16 adc_diff; - s16 min_adc_diff; - - s8 captrim; - s8 fcaptrim; - - const struct dc_calibration *dc; - u16 bb6, bb7; - - const struct dib0090_tuning *current_tune_table_index; - const struct dib0090_pll *current_pll_table_index; - - u8 tuner_is_tuned; - u8 agc_freeze; - - u8 reset; -}; - -static u16 dib0090_read_reg(struct dib0090_state *state, u8 reg) -{ - u8 b[2]; - struct i2c_msg msg[2] = { - {.addr = state->config->i2c_address, .flags = 0, .buf = ®, .len = 1}, - {.addr = state->config->i2c_address, .flags = I2C_M_RD, .buf = b, .len = 2}, - }; - if (i2c_transfer(state->i2c, msg, 2) != 2) { - printk(KERN_WARNING "DiB0090 I2C read failed\n"); - return 0; - } - return (b[0] << 8) | b[1]; -} - -static int dib0090_write_reg(struct dib0090_state *state, u32 reg, u16 val) -{ - u8 b[3] = { reg & 0xff, val >> 8, val & 0xff }; - struct i2c_msg msg = {.addr = state->config->i2c_address, .flags = 0, .buf = b, .len = 3 }; - if (i2c_transfer(state->i2c, &msg, 1) != 1) { - printk(KERN_WARNING "DiB0090 I2C write failed\n"); - return -EREMOTEIO; - } - return 0; -} - -#define HARD_RESET(state) do { if (cfg->reset) { if (cfg->sleep) cfg->sleep(fe, 0); msleep(10); cfg->reset(fe, 1); msleep(10); cfg->reset(fe, 0); msleep(10); } } while (0) -#define ADC_TARGET -220 -#define GAIN_ALPHA 5 -#define WBD_ALPHA 6 -#define LPF 100 -static void dib0090_write_regs(struct dib0090_state *state, u8 r, const u16 * b, u8 c) -{ - do { - dib0090_write_reg(state, r++, *b++); - } while (--c); -} - -static u16 dib0090_identify(struct dvb_frontend *fe) -{ - struct dib0090_state *state = fe->tuner_priv; - u16 v; - - v = dib0090_read_reg(state, 0x1a); - -#ifdef FIRMWARE_FIREFLY - /* pll is not locked locked */ - if (!(v & 0x800)) - dprintk("FE%d : Identification : pll is not yet locked", fe->id); -#endif - - /* without PLL lock info */ - v &= 0x3ff; - dprintk("P/V: %04x:", v); - - if ((v >> 8) & 0xf) - dprintk("FE%d : Product ID = 0x%x : KROSUS", fe->id, (v >> 8) & 0xf); - else - return 0xff; - - v &= 0xff; - if (((v >> 5) & 0x7) == 0x1) - dprintk("FE%d : MP001 : 9090/8096", fe->id); - else if (((v >> 5) & 0x7) == 0x4) - dprintk("FE%d : MP005 : Single Sband", fe->id); - else if (((v >> 5) & 0x7) == 0x6) - dprintk("FE%d : MP008 : diversity VHF-UHF-LBAND", fe->id); - else if (((v >> 5) & 0x7) == 0x7) - dprintk("FE%d : MP009 : diversity 29098 CBAND-UHF-LBAND-SBAND", fe->id); - else - return 0xff; - - /* revision only */ - if ((v & 0x1f) == 0x3) - dprintk("FE%d : P1-D/E/F detected", fe->id); - else if ((v & 0x1f) == 0x1) - dprintk("FE%d : P1C detected", fe->id); - else if ((v & 0x1f) == 0x0) { -#ifdef CONFIG_TUNER_DIB0090_P1B_SUPPORT - dprintk("FE%d : P1-A/B detected: using previous driver - support will be removed soon", fe->id); - dib0090_p1b_register(fe); -#else - dprintk("FE%d : P1-A/B detected: driver is deactivated - not available", fe->id); - return 0xff; -#endif - } - - return v; -} - -static void dib0090_reset_digital(struct dvb_frontend *fe, const struct dib0090_config *cfg) -{ - struct dib0090_state *state = fe->tuner_priv; - - HARD_RESET(state); - - dib0090_write_reg(state, 0x24, EN_PLL); - dib0090_write_reg(state, 0x1b, EN_DIGCLK | EN_PLL | EN_CRYSTAL); /* PLL, DIG_CLK and CRYSTAL remain */ - - /* adcClkOutRatio=8->7, release reset */ - dib0090_write_reg(state, 0x20, ((cfg->io.adc_clock_ratio - 1) << 11) | (0 << 10) | (1 << 9) | (1 << 8) | (0 << 4) | 0); - if (cfg->clkoutdrive != 0) - dib0090_write_reg(state, 0x23, - (0 << 15) | ((!cfg->analog_output) << 14) | (1 << 10) | (1 << 9) | (0 << 8) | (cfg->clkoutdrive << 5) | (cfg-> - clkouttobamse - << 4) | (0 - << - 2) - | (0)); - else - dib0090_write_reg(state, 0x23, - (0 << 15) | ((!cfg->analog_output) << 14) | (1 << 10) | (1 << 9) | (0 << 8) | (7 << 5) | (cfg-> - clkouttobamse << 4) | (0 - << - 2) - | (0)); - - /* enable pll, de-activate reset, ratio: 2/1 = 60MHz */ - dib0090_write_reg(state, 0x21, - (cfg->io.pll_bypass << 15) | (1 << 13) | (cfg->io.pll_range << 12) | (cfg->io.pll_loopdiv << 6) | (cfg->io.pll_prediv)); - -} - -static int dib0090_wakeup(struct dvb_frontend *fe) -{ - struct dib0090_state *state = fe->tuner_priv; - if (state->config->sleep) - state->config->sleep(fe, 0); - return 0; -} - -static int dib0090_sleep(struct dvb_frontend *fe) -{ - struct dib0090_state *state = fe->tuner_priv; - if (state->config->sleep) - state->config->sleep(fe, 1); - return 0; -} - -void dib0090_dcc_freq(struct dvb_frontend *fe, u8 fast) -{ - struct dib0090_state *state = fe->tuner_priv; - if (fast) - dib0090_write_reg(state, 0x04, 0); - else - dib0090_write_reg(state, 0x04, 1); -} -EXPORT_SYMBOL(dib0090_dcc_freq); - -static const u16 rf_ramp_pwm_cband[] = { - 0, /* max RF gain in 10th of dB */ - 0, /* ramp_slope = 1dB of gain -> clock_ticks_per_db = clk_khz / ramp_slope -> 0x2b */ - 0, /* ramp_max = maximum X used on the ramp */ - (0 << 10) | 0, /* 0x2c, LNA 1 = 0dB */ - (0 << 10) | 0, /* 0x2d, LNA 1 */ - (0 << 10) | 0, /* 0x2e, LNA 2 = 0dB */ - (0 << 10) | 0, /* 0x2f, LNA 2 */ - (0 << 10) | 0, /* 0x30, LNA 3 = 0dB */ - (0 << 10) | 0, /* 0x31, LNA 3 */ - (0 << 10) | 0, /* GAIN_4_1, LNA 4 = 0dB */ - (0 << 10) | 0, /* GAIN_4_2, LNA 4 */ -}; - -static const u16 rf_ramp_vhf[] = { - 412, /* max RF gain in 10th of dB */ - 132, 307, 127, /* LNA1, 13.2dB */ - 105, 412, 255, /* LNA2, 10.5dB */ - 50, 50, 127, /* LNA3, 5dB */ - 125, 175, 127, /* LNA4, 12.5dB */ - 0, 0, 127, /* CBAND, 0dB */ -}; - -static const u16 rf_ramp_uhf[] = { - 412, /* max RF gain in 10th of dB */ - 132, 307, 127, /* LNA1 : total gain = 13.2dB, point on the ramp where this amp is full gain, value to write to get full gain */ - 105, 412, 255, /* LNA2 : 10.5 dB */ - 50, 50, 127, /* LNA3 : 5.0 dB */ - 125, 175, 127, /* LNA4 : 12.5 dB */ - 0, 0, 127, /* CBAND : 0.0 dB */ -}; - -static const u16 rf_ramp_cband[] = { - 332, /* max RF gain in 10th of dB */ - 132, 252, 127, /* LNA1, dB */ - 80, 332, 255, /* LNA2, dB */ - 0, 0, 127, /* LNA3, dB */ - 0, 0, 127, /* LNA4, dB */ - 120, 120, 127, /* LT1 CBAND */ -}; - -static const u16 rf_ramp_pwm_vhf[] = { - 404, /* max RF gain in 10th of dB */ - 25, /* ramp_slope = 1dB of gain -> clock_ticks_per_db = clk_khz / ramp_slope -> 0x2b */ - 1011, /* ramp_max = maximum X used on the ramp */ - (6 << 10) | 417, /* 0x2c, LNA 1 = 13.2dB */ - (0 << 10) | 756, /* 0x2d, LNA 1 */ - (16 << 10) | 756, /* 0x2e, LNA 2 = 10.5dB */ - (0 << 10) | 1011, /* 0x2f, LNA 2 */ - (16 << 10) | 290, /* 0x30, LNA 3 = 5dB */ - (0 << 10) | 417, /* 0x31, LNA 3 */ - (7 << 10) | 0, /* GAIN_4_1, LNA 4 = 12.5dB */ - (0 << 10) | 290, /* GAIN_4_2, LNA 4 */ -}; - -static const u16 rf_ramp_pwm_uhf[] = { - 404, /* max RF gain in 10th of dB */ - 25, /* ramp_slope = 1dB of gain -> clock_ticks_per_db = clk_khz / ramp_slope -> 0x2b */ - 1011, /* ramp_max = maximum X used on the ramp */ - (6 << 10) | 417, /* 0x2c, LNA 1 = 13.2dB */ - (0 << 10) | 756, /* 0x2d, LNA 1 */ - (16 << 10) | 756, /* 0x2e, LNA 2 = 10.5dB */ - (0 << 10) | 1011, /* 0x2f, LNA 2 */ - (16 << 10) | 0, /* 0x30, LNA 3 = 5dB */ - (0 << 10) | 127, /* 0x31, LNA 3 */ - (7 << 10) | 127, /* GAIN_4_1, LNA 4 = 12.5dB */ - (0 << 10) | 417, /* GAIN_4_2, LNA 4 */ -}; - -static const u16 bb_ramp_boost[] = { - 550, /* max BB gain in 10th of dB */ - 260, 260, 26, /* BB1, 26dB */ - 290, 550, 29, /* BB2, 29dB */ -}; - -static const u16 bb_ramp_pwm_normal[] = { - 500, /* max RF gain in 10th of dB */ - 8, /* ramp_slope = 1dB of gain -> clock_ticks_per_db = clk_khz / ramp_slope -> 0x34 */ - 400, - (2 << 9) | 0, /* 0x35 = 21dB */ - (0 << 9) | 168, /* 0x36 */ - (2 << 9) | 168, /* 0x37 = 29dB */ - (0 << 9) | 400, /* 0x38 */ -}; - -struct slope { - int16_t range; - int16_t slope; -}; -static u16 slopes_to_scale(const struct slope *slopes, u8 num, s16 val) -{ - u8 i; - u16 rest; - u16 ret = 0; - for (i = 0; i < num; i++) { - if (val > slopes[i].range) - rest = slopes[i].range; - else - rest = val; - ret += (rest * slopes[i].slope) / slopes[i].range; - val -= rest; - } - return ret; -} - -static const struct slope dib0090_wbd_slopes[3] = { - {66, 120}, /* -64,-52: offset - 65 */ - {600, 170}, /* -52,-35: 65 - 665 */ - {170, 250}, /* -45,-10: 665 - 835 */ -}; - -static s16 dib0090_wbd_to_db(struct dib0090_state *state, u16 wbd) -{ - wbd &= 0x3ff; - if (wbd < state->wbd_offset) - wbd = 0; - else - wbd -= state->wbd_offset; - /* -64dB is the floor */ - return -640 + (s16) slopes_to_scale(dib0090_wbd_slopes, ARRAY_SIZE(dib0090_wbd_slopes), wbd); -} - -static void dib0090_wbd_target(struct dib0090_state *state, u32 rf) -{ - u16 offset = 250; - - /* TODO : DAB digital N+/-1 interferer perfs : offset = 10 */ - - if (state->current_band == BAND_VHF) - offset = 650; -#ifndef FIRMWARE_FIREFLY - if (state->current_band == BAND_VHF) - offset = state->config->wbd_vhf_offset; - if (state->current_band == BAND_CBAND) - offset = state->config->wbd_cband_offset; -#endif - - state->wbd_target = dib0090_wbd_to_db(state, state->wbd_offset + offset); - dprintk("wbd-target: %d dB", (u32) state->wbd_target); -} - -static const int gain_reg_addr[4] = { - 0x08, 0x0a, 0x0f, 0x01 -}; - -static void dib0090_gain_apply(struct dib0090_state *state, s16 gain_delta, s16 top_delta, u8 force) -{ - u16 rf, bb, ref; - u16 i, v, gain_reg[4] = { 0 }, gain; - const u16 *g; - - if (top_delta < -511) - top_delta = -511; - if (top_delta > 511) - top_delta = 511; - - if (force) { - top_delta *= (1 << WBD_ALPHA); - gain_delta *= (1 << GAIN_ALPHA); - } - - if (top_delta >= ((s16) (state->rf_ramp[0] << WBD_ALPHA) - state->rf_gain_limit)) /* overflow */ - state->rf_gain_limit = state->rf_ramp[0] << WBD_ALPHA; - else - state->rf_gain_limit += top_delta; - - if (state->rf_gain_limit < 0) /*underflow */ - state->rf_gain_limit = 0; - - /* use gain as a temporary variable and correct current_gain */ - gain = ((state->rf_gain_limit >> WBD_ALPHA) + state->bb_ramp[0]) << GAIN_ALPHA; - if (gain_delta >= ((s16) gain - state->current_gain)) /* overflow */ - state->current_gain = gain; - else - state->current_gain += gain_delta; - /* cannot be less than 0 (only if gain_delta is less than 0 we can have current_gain < 0) */ - if (state->current_gain < 0) - state->current_gain = 0; - - /* now split total gain to rf and bb gain */ - gain = state->current_gain >> GAIN_ALPHA; - - /* requested gain is bigger than rf gain limit - ACI/WBD adjustment */ - if (gain > (state->rf_gain_limit >> WBD_ALPHA)) { - rf = state->rf_gain_limit >> WBD_ALPHA; - bb = gain - rf; - if (bb > state->bb_ramp[0]) - bb = state->bb_ramp[0]; - } else { /* high signal level -> all gains put on RF */ - rf = gain; - bb = 0; - } - - state->gain[0] = rf; - state->gain[1] = bb; - - /* software ramp */ - /* Start with RF gains */ - g = state->rf_ramp + 1; /* point on RF LNA1 max gain */ - ref = rf; - for (i = 0; i < 7; i++) { /* Go over all amplifiers => 5RF amps + 2 BB amps = 7 amps */ - if (g[0] == 0 || ref < (g[1] - g[0])) /* if total gain of the current amp is null or this amp is not concerned because it starts to work from an higher gain value */ - v = 0; /* force the gain to write for the current amp to be null */ - else if (ref >= g[1]) /* Gain to set is higher than the high working point of this amp */ - v = g[2]; /* force this amp to be full gain */ - else /* compute the value to set to this amp because we are somewhere in his range */ - v = ((ref - (g[1] - g[0])) * g[2]) / g[0]; - - if (i == 0) /* LNA 1 reg mapping */ - gain_reg[0] = v; - else if (i == 1) /* LNA 2 reg mapping */ - gain_reg[0] |= v << 7; - else if (i == 2) /* LNA 3 reg mapping */ - gain_reg[1] = v; - else if (i == 3) /* LNA 4 reg mapping */ - gain_reg[1] |= v << 7; - else if (i == 4) /* CBAND LNA reg mapping */ - gain_reg[2] = v | state->rf_lt_def; - else if (i == 5) /* BB gain 1 reg mapping */ - gain_reg[3] = v << 3; - else if (i == 6) /* BB gain 2 reg mapping */ - gain_reg[3] |= v << 8; - - g += 3; /* go to next gain bloc */ - - /* When RF is finished, start with BB */ - if (i == 4) { - g = state->bb_ramp + 1; /* point on BB gain 1 max gain */ - ref = bb; - } - } - gain_reg[3] |= state->bb_1_def; - gain_reg[3] |= ((bb % 10) * 100) / 125; - -#ifdef DEBUG_AGC - dprintk("GA CALC: DB: %3d(rf) + %3d(bb) = %3d gain_reg[0]=%04x gain_reg[1]=%04x gain_reg[2]=%04x gain_reg[0]=%04x", rf, bb, rf + bb, - gain_reg[0], gain_reg[1], gain_reg[2], gain_reg[3]); -#endif - - /* Write the amplifier regs */ - for (i = 0; i < 4; i++) { - v = gain_reg[i]; - if (force || state->gain_reg[i] != v) { - state->gain_reg[i] = v; - dib0090_write_reg(state, gain_reg_addr[i], v); - } - } -} - -static void dib0090_set_boost(struct dib0090_state *state, int onoff) -{ - state->bb_1_def &= 0xdfff; - state->bb_1_def |= onoff << 13; -} - -static void dib0090_set_rframp(struct dib0090_state *state, const u16 * cfg) -{ - state->rf_ramp = cfg; -} - -static void dib0090_set_rframp_pwm(struct dib0090_state *state, const u16 * cfg) -{ - state->rf_ramp = cfg; - - dib0090_write_reg(state, 0x2a, 0xffff); - - dprintk("total RF gain: %ddB, step: %d", (u32) cfg[0], dib0090_read_reg(state, 0x2a)); - - dib0090_write_regs(state, 0x2c, cfg + 3, 6); - dib0090_write_regs(state, 0x3e, cfg + 9, 2); -} - -static void dib0090_set_bbramp(struct dib0090_state *state, const u16 * cfg) -{ - state->bb_ramp = cfg; - dib0090_set_boost(state, cfg[0] > 500); /* we want the boost if the gain is higher that 50dB */ -} - -static void dib0090_set_bbramp_pwm(struct dib0090_state *state, const u16 * cfg) -{ - state->bb_ramp = cfg; - - dib0090_set_boost(state, cfg[0] > 500); /* we want the boost if the gain is higher that 50dB */ - - dib0090_write_reg(state, 0x33, 0xffff); - dprintk("total BB gain: %ddB, step: %d", (u32) cfg[0], dib0090_read_reg(state, 0x33)); - dib0090_write_regs(state, 0x35, cfg + 3, 4); -} - -void dib0090_pwm_gain_reset(struct dvb_frontend *fe) -{ - struct dib0090_state *state = fe->tuner_priv; - /* reset the AGC */ - - if (state->config->use_pwm_agc) { -#ifdef CONFIG_BAND_SBAND - if (state->current_band == BAND_SBAND) { - dib0090_set_rframp_pwm(state, rf_ramp_pwm_sband); - dib0090_set_bbramp_pwm(state, bb_ramp_pwm_boost); - } else -#endif -#ifdef CONFIG_BAND_CBAND - if (state->current_band == BAND_CBAND) { - dib0090_set_rframp_pwm(state, rf_ramp_pwm_cband); - dib0090_set_bbramp_pwm(state, bb_ramp_pwm_normal); - } else -#endif -#ifdef CONFIG_BAND_VHF - if (state->current_band == BAND_VHF) { - dib0090_set_rframp_pwm(state, rf_ramp_pwm_vhf); - dib0090_set_bbramp_pwm(state, bb_ramp_pwm_normal); - } else -#endif - { - dib0090_set_rframp_pwm(state, rf_ramp_pwm_uhf); - dib0090_set_bbramp_pwm(state, bb_ramp_pwm_normal); - } - - if (state->rf_ramp[0] != 0) - dib0090_write_reg(state, 0x32, (3 << 11)); - else - dib0090_write_reg(state, 0x32, (0 << 11)); - - dib0090_write_reg(state, 0x39, (1 << 10)); - } -} -EXPORT_SYMBOL(dib0090_pwm_gain_reset); - -int dib0090_gain_control(struct dvb_frontend *fe) -{ - struct dib0090_state *state = fe->tuner_priv; - enum frontend_tune_state *tune_state = &state->tune_state; - int ret = 10; - - u16 wbd_val = 0; - u8 apply_gain_immediatly = 1; - s16 wbd_error = 0, adc_error = 0; - - if (*tune_state == CT_AGC_START) { - state->agc_freeze = 0; - dib0090_write_reg(state, 0x04, 0x0); - -#ifdef CONFIG_BAND_SBAND - if (state->current_band == BAND_SBAND) { - dib0090_set_rframp(state, rf_ramp_sband); - dib0090_set_bbramp(state, bb_ramp_boost); - } else -#endif -#ifdef CONFIG_BAND_VHF - if (state->current_band == BAND_VHF) { - dib0090_set_rframp(state, rf_ramp_vhf); - dib0090_set_bbramp(state, bb_ramp_boost); - } else -#endif -#ifdef CONFIG_BAND_CBAND - if (state->current_band == BAND_CBAND) { - dib0090_set_rframp(state, rf_ramp_cband); - dib0090_set_bbramp(state, bb_ramp_boost); - } else -#endif - { - dib0090_set_rframp(state, rf_ramp_uhf); - dib0090_set_bbramp(state, bb_ramp_boost); - } - - dib0090_write_reg(state, 0x32, 0); - dib0090_write_reg(state, 0x39, 0); - - dib0090_wbd_target(state, state->current_rf); - - state->rf_gain_limit = state->rf_ramp[0] << WBD_ALPHA; - state->current_gain = ((state->rf_ramp[0] + state->bb_ramp[0]) / 2) << GAIN_ALPHA; - - *tune_state = CT_AGC_STEP_0; - } else if (!state->agc_freeze) { - s16 wbd; - - int adc; - wbd_val = dib0090_read_reg(state, 0x1d); - - /* read and calc the wbd power */ - wbd = dib0090_wbd_to_db(state, wbd_val); - wbd_error = state->wbd_target - wbd; - - if (*tune_state == CT_AGC_STEP_0) { - if (wbd_error < 0 && state->rf_gain_limit > 0) { -#ifdef CONFIG_BAND_CBAND - /* in case of CBAND tune reduce first the lt_gain2 before adjusting the RF gain */ - u8 ltg2 = (state->rf_lt_def >> 10) & 0x7; - if (state->current_band == BAND_CBAND && ltg2) { - ltg2 >>= 1; - state->rf_lt_def &= ltg2 << 10; /* reduce in 3 steps from 7 to 0 */ - } -#endif - } else { - state->agc_step = 0; - *tune_state = CT_AGC_STEP_1; - } - } else { - /* calc the adc power */ - adc = state->config->get_adc_power(fe); - adc = (adc * ((s32) 355774) + (((s32) 1) << 20)) >> 21; /* included in [0:-700] */ - - adc_error = (s16) (((s32) ADC_TARGET) - adc); -#ifdef CONFIG_STANDARD_DAB - if (state->fe->dtv_property_cache.delivery_system == STANDARD_DAB) - adc_error += 130; -#endif -#ifdef CONFIG_STANDARD_DVBT - if (state->fe->dtv_property_cache.delivery_system == STANDARD_DVBT && - (state->fe->dtv_property_cache.modulation == QAM_64 || state->fe->dtv_property_cache.modulation == QAM_16)) - adc_error += 60; -#endif -#ifdef CONFIG_SYS_ISDBT - if ((state->fe->dtv_property_cache.delivery_system == SYS_ISDBT) && (((state->fe->dtv_property_cache.layer[0].segment_count > - 0) - && - ((state->fe->dtv_property_cache.layer[0].modulation == - QAM_64) - || (state->fe->dtv_property_cache.layer[0]. - modulation == QAM_16))) - || - ((state->fe->dtv_property_cache.layer[1].segment_count > - 0) - && - ((state->fe->dtv_property_cache.layer[1].modulation == - QAM_64) - || (state->fe->dtv_property_cache.layer[1]. - modulation == QAM_16))) - || - ((state->fe->dtv_property_cache.layer[2].segment_count > - 0) - && - ((state->fe->dtv_property_cache.layer[2].modulation == - QAM_64) - || (state->fe->dtv_property_cache.layer[2]. - modulation == QAM_16))) - ) - ) - adc_error += 60; -#endif - - if (*tune_state == CT_AGC_STEP_1) { /* quickly go to the correct range of the ADC power */ - if (ABS(adc_error) < 50 || state->agc_step++ > 5) { - -#ifdef CONFIG_STANDARD_DAB - if (state->fe->dtv_property_cache.delivery_system == STANDARD_DAB) { - dib0090_write_reg(state, 0x02, (1 << 15) | (15 << 11) | (31 << 6) | (63)); /* cap value = 63 : narrow BB filter : Fc = 1.8MHz */ - dib0090_write_reg(state, 0x04, 0x0); - } else -#endif - { - dib0090_write_reg(state, 0x02, (1 << 15) | (3 << 11) | (6 << 6) | (32)); - dib0090_write_reg(state, 0x04, 0x01); /*0 = 1KHz ; 1 = 150Hz ; 2 = 50Hz ; 3 = 50KHz ; 4 = servo fast */ - } - - *tune_state = CT_AGC_STOP; - } - } else { - /* everything higher than or equal to CT_AGC_STOP means tracking */ - ret = 100; /* 10ms interval */ - apply_gain_immediatly = 0; - } - } -#ifdef DEBUG_AGC - dprintk - ("FE: %d, tune state %d, ADC = %3ddB (ADC err %3d) WBD %3ddB (WBD err %3d, WBD val SADC: %4d), RFGainLimit (TOP): %3d, signal: %3ddBm", - (u32) fe->id, (u32) *tune_state, (u32) adc, (u32) adc_error, (u32) wbd, (u32) wbd_error, (u32) wbd_val, - (u32) state->rf_gain_limit >> WBD_ALPHA, (s32) 200 + adc - (state->current_gain >> GAIN_ALPHA)); -#endif - } - - /* apply gain */ - if (!state->agc_freeze) - dib0090_gain_apply(state, adc_error, wbd_error, apply_gain_immediatly); - return ret; -} -EXPORT_SYMBOL(dib0090_gain_control); - -void dib0090_get_current_gain(struct dvb_frontend *fe, u16 * rf, u16 * bb, u16 * rf_gain_limit, u16 * rflt) -{ - struct dib0090_state *state = fe->tuner_priv; - if (rf) - *rf = state->gain[0]; - if (bb) - *bb = state->gain[1]; - if (rf_gain_limit) - *rf_gain_limit = state->rf_gain_limit; - if (rflt) - *rflt = (state->rf_lt_def >> 10) & 0x7; -} -EXPORT_SYMBOL(dib0090_get_current_gain); - -u16 dib0090_get_wbd_offset(struct dvb_frontend *tuner) -{ - struct dib0090_state *st = tuner->tuner_priv; - return st->wbd_offset; -} -EXPORT_SYMBOL(dib0090_get_wbd_offset); - -static const u16 dib0090_defaults[] = { - - 25, 0x01, - 0x0000, - 0x99a0, - 0x6008, - 0x0000, - 0x8acb, - 0x0000, - 0x0405, - 0x0000, - 0x0000, - 0x0000, - 0xb802, - 0x0300, - 0x2d12, - 0xbac0, - 0x7c00, - 0xdbb9, - 0x0954, - 0x0743, - 0x8000, - 0x0001, - 0x0040, - 0x0100, - 0x0000, - 0xe910, - 0x149e, - - 1, 0x1c, - 0xff2d, - - 1, 0x39, - 0x0000, - - 1, 0x1b, - EN_IQADC | EN_BB | EN_BIAS | EN_DIGCLK | EN_PLL | EN_CRYSTAL, - 2, 0x1e, - 0x07FF, - 0x0007, - - 1, 0x24, - EN_UHF | EN_CRYSTAL, - - 2, 0x3c, - 0x3ff, - 0x111, - 0 -}; - -static int dib0090_reset(struct dvb_frontend *fe) -{ - struct dib0090_state *state = fe->tuner_priv; - u16 l, r, *n; - - dib0090_reset_digital(fe, state->config); - state->revision = dib0090_identify(fe); - - /* Revision definition */ - if (state->revision == 0xff) - return -EINVAL; -#ifdef EFUSE - else if ((state->revision & 0x1f) >= 3) /* Update the efuse : Only available for KROSUS > P1C */ - dib0090_set_EFUSE(state); -#endif - -#ifdef CONFIG_TUNER_DIB0090_P1B_SUPPORT - if (!(state->revision & 0x1)) /* it is P1B - reset is already done */ - return 0; -#endif - - /* Upload the default values */ - n = (u16 *) dib0090_defaults; - l = pgm_read_word(n++); - while (l) { - r = pgm_read_word(n++); - do { - /* DEBUG_TUNER */ - /* dprintk("%d, %d, %d", l, r, pgm_read_word(n)); */ - dib0090_write_reg(state, r, pgm_read_word(n++)); - r++; - } while (--l); - l = pgm_read_word(n++); - } - - /* Congigure in function of the crystal */ - if (state->config->io.clock_khz >= 24000) - l = 1; - else - l = 2; - dib0090_write_reg(state, 0x14, l); - dprintk("Pll lock : %d", (dib0090_read_reg(state, 0x1a) >> 11) & 0x1); - - state->reset = 3; /* enable iq-offset-calibration and wbd-calibration when tuning next time */ - - return 0; -} - -#define steps(u) (((u) > 15) ? ((u)-16) : (u)) -#define INTERN_WAIT 10 -static int dib0090_get_offset(struct dib0090_state *state, enum frontend_tune_state *tune_state) -{ - int ret = INTERN_WAIT * 10; - - switch (*tune_state) { - case CT_TUNER_STEP_2: - /* Turns to positive */ - dib0090_write_reg(state, 0x1f, 0x7); - *tune_state = CT_TUNER_STEP_3; - break; - - case CT_TUNER_STEP_3: - state->adc_diff = dib0090_read_reg(state, 0x1d); - - /* Turns to negative */ - dib0090_write_reg(state, 0x1f, 0x4); - *tune_state = CT_TUNER_STEP_4; - break; - - case CT_TUNER_STEP_4: - state->adc_diff -= dib0090_read_reg(state, 0x1d); - *tune_state = CT_TUNER_STEP_5; - ret = 0; - break; - - default: - break; - } - - return ret; -} - -struct dc_calibration { - uint8_t addr; - uint8_t offset; - uint8_t pga:1; - uint16_t bb1; - uint8_t i:1; -}; - -static const struct dc_calibration dc_table[] = { - /* Step1 BB gain1= 26 with boost 1, gain 2 = 0 */ - {0x06, 5, 1, (1 << 13) | (0 << 8) | (26 << 3), 1}, - {0x07, 11, 1, (1 << 13) | (0 << 8) | (26 << 3), 0}, - /* Step 2 BB gain 1 = 26 with boost = 1 & gain 2 = 29 */ - {0x06, 0, 0, (1 << 13) | (29 << 8) | (26 << 3), 1}, - {0x06, 10, 0, (1 << 13) | (29 << 8) | (26 << 3), 0}, - {0}, -}; - -static void dib0090_set_trim(struct dib0090_state *state) -{ - u16 *val; - - if (state->dc->addr == 0x07) - val = &state->bb7; - else - val = &state->bb6; - - *val &= ~(0x1f << state->dc->offset); - *val |= state->step << state->dc->offset; - - dib0090_write_reg(state, state->dc->addr, *val); -} - -static int dib0090_dc_offset_calibration(struct dib0090_state *state, enum frontend_tune_state *tune_state) -{ - int ret = 0; - - switch (*tune_state) { - - case CT_TUNER_START: - /* init */ - dprintk("Internal DC calibration"); - - /* the LNA is off */ - dib0090_write_reg(state, 0x24, 0x02ed); - - /* force vcm2 = 0.8V */ - state->bb6 = 0; - state->bb7 = 0x040d; - - state->dc = dc_table; - - *tune_state = CT_TUNER_STEP_0; - - /* fall through */ - - case CT_TUNER_STEP_0: - dib0090_write_reg(state, 0x01, state->dc->bb1); - dib0090_write_reg(state, 0x07, state->bb7 | (state->dc->i << 7)); - - state->step = 0; - - state->min_adc_diff = 1023; - - *tune_state = CT_TUNER_STEP_1; - ret = 50; - break; - - case CT_TUNER_STEP_1: - dib0090_set_trim(state); - - *tune_state = CT_TUNER_STEP_2; - break; - - case CT_TUNER_STEP_2: - case CT_TUNER_STEP_3: - case CT_TUNER_STEP_4: - ret = dib0090_get_offset(state, tune_state); - break; - - case CT_TUNER_STEP_5: /* found an offset */ - dprintk("FE%d: IQC read=%d, current=%x", state->fe->id, (u32) state->adc_diff, state->step); - - /* first turn for this frequency */ - if (state->step == 0) { - if (state->dc->pga && state->adc_diff < 0) - state->step = 0x10; - if (state->dc->pga == 0 && state->adc_diff > 0) - state->step = 0x10; - } - - state->adc_diff = ABS(state->adc_diff); - - if (state->adc_diff < state->min_adc_diff && steps(state->step) < 15) { /* stop search when the delta to 0 is increasing */ - state->step++; - state->min_adc_diff = state->adc_diff; - *tune_state = CT_TUNER_STEP_1; - } else { - - /* the minimum was what we have seen in the step before */ - state->step--; - dib0090_set_trim(state); - - dprintk("FE%d: BB Offset Cal, BBreg=%hd,Offset=%hd,Value Set=%hd", state->fe->id, state->dc->addr, state->adc_diff, - state->step); - - state->dc++; - if (state->dc->addr == 0) /* done */ - *tune_state = CT_TUNER_STEP_6; - else - *tune_state = CT_TUNER_STEP_0; - - } - break; - - case CT_TUNER_STEP_6: - dib0090_write_reg(state, 0x07, state->bb7 & ~0x0008); - dib0090_write_reg(state, 0x1f, 0x7); - *tune_state = CT_TUNER_START; /* reset done -> real tuning can now begin */ - state->reset &= ~0x1; - default: - break; - } - return ret; -} - -static int dib0090_wbd_calibration(struct dib0090_state *state, enum frontend_tune_state *tune_state) -{ - switch (*tune_state) { - case CT_TUNER_START: - /* WBD-mode=log, Bias=2, Gain=6, Testmode=1, en=1, WBDMUX=1 */ - dib0090_write_reg(state, 0x10, 0xdb09 | (1 << 10)); - dib0090_write_reg(state, 0x24, EN_UHF & 0x0fff); - - *tune_state = CT_TUNER_STEP_0; - return 90; /* wait for the WBDMUX to switch and for the ADC to sample */ - case CT_TUNER_STEP_0: - state->wbd_offset = dib0090_read_reg(state, 0x1d); - dprintk("WBD calibration offset = %d", state->wbd_offset); - - *tune_state = CT_TUNER_START; /* reset done -> real tuning can now begin */ - state->reset &= ~0x2; - break; - default: - break; - } - return 0; -} - -static void dib0090_set_bandwidth(struct dib0090_state *state) -{ - u16 tmp; - - if (state->fe->dtv_property_cache.bandwidth_hz / 1000 <= 5000) - tmp = (3 << 14); - else if (state->fe->dtv_property_cache.bandwidth_hz / 1000 <= 6000) - tmp = (2 << 14); - else if (state->fe->dtv_property_cache.bandwidth_hz / 1000 <= 7000) - tmp = (1 << 14); - else - tmp = (0 << 14); - - state->bb_1_def &= 0x3fff; - state->bb_1_def |= tmp; - - dib0090_write_reg(state, 0x01, state->bb_1_def); /* be sure that we have the right bb-filter */ -} - -static const struct dib0090_pll dib0090_pll_table[] = { -#ifdef CONFIG_BAND_CBAND - {56000, 0, 9, 48, 6}, - {70000, 1, 9, 48, 6}, - {87000, 0, 8, 32, 4}, - {105000, 1, 8, 32, 4}, - {115000, 0, 7, 24, 6}, - {140000, 1, 7, 24, 6}, - {170000, 0, 6, 16, 4}, -#endif -#ifdef CONFIG_BAND_VHF - {200000, 1, 6, 16, 4}, - {230000, 0, 5, 12, 6}, - {280000, 1, 5, 12, 6}, - {340000, 0, 4, 8, 4}, - {380000, 1, 4, 8, 4}, - {450000, 0, 3, 6, 6}, -#endif -#ifdef CONFIG_BAND_UHF - {580000, 1, 3, 6, 6}, - {700000, 0, 2, 4, 4}, - {860000, 1, 2, 4, 4}, -#endif -#ifdef CONFIG_BAND_LBAND - {1800000, 1, 0, 2, 4}, -#endif -#ifdef CONFIG_BAND_SBAND - {2900000, 0, 14, 1, 4}, -#endif -}; - -static const struct dib0090_tuning dib0090_tuning_table_fm_vhf_on_cband[] = { - -#ifdef CONFIG_BAND_CBAND - {184000, 4, 1, 15, 0x280, 0x2912, 0xb94e, EN_CAB}, - {227000, 4, 3, 15, 0x280, 0x2912, 0xb94e, EN_CAB}, - {380000, 4, 7, 15, 0x280, 0x2912, 0xb94e, EN_CAB}, -#endif -#ifdef CONFIG_BAND_UHF - {520000, 2, 0, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF}, - {550000, 2, 2, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF}, - {650000, 2, 3, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF}, - {750000, 2, 5, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF}, - {850000, 2, 6, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF}, - {900000, 2, 7, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF}, -#endif -#ifdef CONFIG_BAND_LBAND - {1500000, 4, 0, 20, 0x300, 0x1912, 0x82c9, EN_LBD}, - {1600000, 4, 1, 20, 0x300, 0x1912, 0x82c9, EN_LBD}, - {1800000, 4, 3, 20, 0x300, 0x1912, 0x82c9, EN_LBD}, -#endif -#ifdef CONFIG_BAND_SBAND - {2300000, 1, 4, 20, 0x300, 0x2d2A, 0x82c7, EN_SBD}, - {2900000, 1, 7, 20, 0x280, 0x2deb, 0x8347, EN_SBD}, -#endif -}; - -static const struct dib0090_tuning dib0090_tuning_table[] = { - -#ifdef CONFIG_BAND_CBAND - {170000, 4, 1, 15, 0x280, 0x2912, 0xb94e, EN_CAB}, -#endif -#ifdef CONFIG_BAND_VHF - {184000, 1, 1, 15, 0x300, 0x4d12, 0xb94e, EN_VHF}, - {227000, 1, 3, 15, 0x300, 0x4d12, 0xb94e, EN_VHF}, - {380000, 1, 7, 15, 0x300, 0x4d12, 0xb94e, EN_VHF}, -#endif -#ifdef CONFIG_BAND_UHF - {520000, 2, 0, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF}, - {550000, 2, 2, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF}, - {650000, 2, 3, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF}, - {750000, 2, 5, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF}, - {850000, 2, 6, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF}, - {900000, 2, 7, 15, 0x300, 0x1d12, 0xb9ce, EN_UHF}, -#endif -#ifdef CONFIG_BAND_LBAND - {1500000, 4, 0, 20, 0x300, 0x1912, 0x82c9, EN_LBD}, - {1600000, 4, 1, 20, 0x300, 0x1912, 0x82c9, EN_LBD}, - {1800000, 4, 3, 20, 0x300, 0x1912, 0x82c9, EN_LBD}, -#endif -#ifdef CONFIG_BAND_SBAND - {2300000, 1, 4, 20, 0x300, 0x2d2A, 0x82c7, EN_SBD}, - {2900000, 1, 7, 20, 0x280, 0x2deb, 0x8347, EN_SBD}, -#endif -}; - -#define WBD 0x781 /* 1 1 1 1 0000 0 0 1 */ -static int dib0090_tune(struct dvb_frontend *fe) -{ - struct dib0090_state *state = fe->tuner_priv; - const struct dib0090_tuning *tune = state->current_tune_table_index; - const struct dib0090_pll *pll = state->current_pll_table_index; - enum frontend_tune_state *tune_state = &state->tune_state; - - u32 rf; - u16 lo4 = 0xe900, lo5, lo6, Den; - u32 FBDiv, Rest, FREF, VCOF_kHz = 0; - u16 tmp, adc; - int8_t step_sign; - int ret = 10; /* 1ms is the default delay most of the time */ - u8 c, i; - - state->current_band = (u8) BAND_OF_FREQUENCY(fe->dtv_property_cache.frequency / 1000); - rf = fe->dtv_property_cache.frequency / 1000 + (state->current_band == - BAND_UHF ? state->config->freq_offset_khz_uhf : state->config->freq_offset_khz_vhf); - /* in any case we first need to do a reset if needed */ - if (state->reset & 0x1) - return dib0090_dc_offset_calibration(state, tune_state); - else if (state->reset & 0x2) - return dib0090_wbd_calibration(state, tune_state); - - /************************* VCO ***************************/ - /* Default values for FG */ - /* from these are needed : */ - /* Cp,HFdiv,VCOband,SD,Num,Den,FB and REFDiv */ - -#ifdef CONFIG_SYS_ISDBT - if (state->fe->dtv_property_cache.delivery_system == SYS_ISDBT && state->fe->dtv_property_cache.isdbt_sb_mode == 1) - rf += 850; -#endif - - if (state->current_rf != rf) { - state->tuner_is_tuned = 0; - - tune = dib0090_tuning_table; - - tmp = (state->revision >> 5) & 0x7; - if (tmp == 0x4 || tmp == 0x7) { - /* CBAND tuner version for VHF */ - if (state->current_band == BAND_FM || state->current_band == BAND_VHF) { - /* Force CBAND */ - state->current_band = BAND_CBAND; - tune = dib0090_tuning_table_fm_vhf_on_cband; - } - } - - pll = dib0090_pll_table; - /* Look for the interval */ - while (rf > tune->max_freq) - tune++; - while (rf > pll->max_freq) - pll++; - state->current_tune_table_index = tune; - state->current_pll_table_index = pll; - } - - if (*tune_state == CT_TUNER_START) { - - if (state->tuner_is_tuned == 0) - state->current_rf = 0; - - if (state->current_rf != rf) { - - dib0090_write_reg(state, 0x0b, 0xb800 | (tune->switch_trim)); - - /* external loop filter, otherwise: - * lo5 = (0 << 15) | (0 << 12) | (0 << 11) | (3 << 9) | (4 << 6) | (3 << 4) | 4; - * lo6 = 0x0e34 */ - if (pll->vco_band) - lo5 = 0x049e; - else if (state->config->analog_output) - lo5 = 0x041d; - else - lo5 = 0x041c; - - lo5 |= (pll->hfdiv_code << 11) | (pll->vco_band << 7); /* bit 15 is the split to the slave, we do not do it here */ - - if (!state->config->io.pll_int_loop_filt) - lo6 = 0xff28; - else - lo6 = (state->config->io.pll_int_loop_filt << 3); - - VCOF_kHz = (pll->hfdiv * rf) * 2; - - FREF = state->config->io.clock_khz; - - FBDiv = (VCOF_kHz / pll->topresc / FREF); - Rest = (VCOF_kHz / pll->topresc) - FBDiv * FREF; - - if (Rest < LPF) - Rest = 0; - else if (Rest < 2 * LPF) - Rest = 2 * LPF; - else if (Rest > (FREF - LPF)) { - Rest = 0; - FBDiv += 1; - } else if (Rest > (FREF - 2 * LPF)) - Rest = FREF - 2 * LPF; - Rest = (Rest * 6528) / (FREF / 10); - - Den = 1; - - dprintk(" ***** ******* Rest value = %d", Rest); - - if (Rest > 0) { - if (state->config->analog_output) - lo6 |= (1 << 2) | 2; - else - lo6 |= (1 << 2) | 1; - Den = 255; - } -#ifdef CONFIG_BAND_SBAND - if (state->current_band == BAND_SBAND) - lo6 &= 0xfffb; -#endif - - dib0090_write_reg(state, 0x15, (u16) FBDiv); - - dib0090_write_reg(state, 0x16, (Den << 8) | 1); - - dib0090_write_reg(state, 0x17, (u16) Rest); - - dib0090_write_reg(state, 0x19, lo5); - - dib0090_write_reg(state, 0x1c, lo6); - - lo6 = tune->tuner_enable; - if (state->config->analog_output) - lo6 = (lo6 & 0xff9f) | 0x2; - - dib0090_write_reg(state, 0x24, lo6 | EN_LO -#ifdef CONFIG_DIB0090_USE_PWM_AGC - | state->config->use_pwm_agc * EN_CRYSTAL -#endif - ); - - state->current_rf = rf; - - /* prepare a complete captrim */ - state->step = state->captrim = state->fcaptrim = 64; - - } else { /* we are already tuned to this frequency - the configuration is correct */ - - /* do a minimal captrim even if the frequency has not changed */ - state->step = 4; - state->captrim = state->fcaptrim = dib0090_read_reg(state, 0x18) & 0x7f; - } - state->adc_diff = 3000; - - dib0090_write_reg(state, 0x10, 0x2B1); - - dib0090_write_reg(state, 0x1e, 0x0032); - - ret = 20; - *tune_state = CT_TUNER_STEP_1; - } else if (*tune_state == CT_TUNER_STEP_0) { - /* nothing */ - } else if (*tune_state == CT_TUNER_STEP_1) { - state->step /= 2; - dib0090_write_reg(state, 0x18, lo4 | state->captrim); - *tune_state = CT_TUNER_STEP_2; - } else if (*tune_state == CT_TUNER_STEP_2) { - - adc = dib0090_read_reg(state, 0x1d); - dprintk("FE %d CAPTRIM=%d; ADC = %d (ADC) & %dmV", (u32) fe->id, (u32) state->captrim, (u32) adc, - (u32) (adc) * (u32) 1800 / (u32) 1024); - - if (adc >= 400) { - adc -= 400; - step_sign = -1; - } else { - adc = 400 - adc; - step_sign = 1; - } - - if (adc < state->adc_diff) { - dprintk("FE %d CAPTRIM=%d is closer to target (%d/%d)", (u32) fe->id, (u32) state->captrim, (u32) adc, (u32) state->adc_diff); - state->adc_diff = adc; - state->fcaptrim = state->captrim; - - } - - state->captrim += step_sign * state->step; - if (state->step >= 1) - *tune_state = CT_TUNER_STEP_1; - else - *tune_state = CT_TUNER_STEP_3; - - ret = 15; - } else if (*tune_state == CT_TUNER_STEP_3) { - /*write the final cptrim config */ - dib0090_write_reg(state, 0x18, lo4 | state->fcaptrim); - -#ifdef CONFIG_TUNER_DIB0090_CAPTRIM_MEMORY - state->memory[state->memory_index].cap = state->fcaptrim; -#endif - - *tune_state = CT_TUNER_STEP_4; - } else if (*tune_state == CT_TUNER_STEP_4) { - dib0090_write_reg(state, 0x1e, 0x07ff); - - dprintk("FE %d Final Captrim: %d", (u32) fe->id, (u32) state->fcaptrim); - dprintk("FE %d HFDIV code: %d", (u32) fe->id, (u32) pll->hfdiv_code); - dprintk("FE %d VCO = %d", (u32) fe->id, (u32) pll->vco_band); - dprintk("FE %d VCOF in kHz: %d ((%d*%d) << 1))", (u32) fe->id, (u32) ((pll->hfdiv * rf) * 2), (u32) pll->hfdiv, (u32) rf); - dprintk("FE %d REFDIV: %d, FREF: %d", (u32) fe->id, (u32) 1, (u32) state->config->io.clock_khz); - dprintk("FE %d FBDIV: %d, Rest: %d", (u32) fe->id, (u32) dib0090_read_reg(state, 0x15), (u32) dib0090_read_reg(state, 0x17)); - dprintk("FE %d Num: %d, Den: %d, SD: %d", (u32) fe->id, (u32) dib0090_read_reg(state, 0x17), - (u32) (dib0090_read_reg(state, 0x16) >> 8), (u32) dib0090_read_reg(state, 0x1c) & 0x3); - - c = 4; - i = 3; -#if defined(CONFIG_BAND_LBAND) || defined(CONFIG_BAND_SBAND) - if ((state->current_band == BAND_LBAND) || (state->current_band == BAND_SBAND)) { - c = 2; - i = 2; - } -#endif - dib0090_write_reg(state, 0x10, (c << 13) | (i << 11) | (WBD -#ifdef CONFIG_DIB0090_USE_PWM_AGC - | (state->config->use_pwm_agc << 1) -#endif - )); - dib0090_write_reg(state, 0x09, (tune->lna_tune << 5) | (tune->lna_bias << 0)); - dib0090_write_reg(state, 0x0c, tune->v2i); - dib0090_write_reg(state, 0x0d, tune->mix); - dib0090_write_reg(state, 0x0e, tune->load); - - *tune_state = CT_TUNER_STEP_5; - } else if (*tune_state == CT_TUNER_STEP_5) { - - /* initialize the lt gain register */ - state->rf_lt_def = 0x7c00; - dib0090_write_reg(state, 0x0f, state->rf_lt_def); - - dib0090_set_bandwidth(state); - state->tuner_is_tuned = 1; - *tune_state = CT_TUNER_STOP; - } else - ret = FE_CALLBACK_TIME_NEVER; - return ret; -} - -static int dib0090_release(struct dvb_frontend *fe) -{ - kfree(fe->tuner_priv); - fe->tuner_priv = NULL; - return 0; -} - -enum frontend_tune_state dib0090_get_tune_state(struct dvb_frontend *fe) -{ - struct dib0090_state *state = fe->tuner_priv; - - return state->tune_state; -} -EXPORT_SYMBOL(dib0090_get_tune_state); - -int dib0090_set_tune_state(struct dvb_frontend *fe, enum frontend_tune_state tune_state) -{ - struct dib0090_state *state = fe->tuner_priv; - - state->tune_state = tune_state; - return 0; -} -EXPORT_SYMBOL(dib0090_set_tune_state); - -static int dib0090_get_frequency(struct dvb_frontend *fe, u32 * frequency) -{ - struct dib0090_state *state = fe->tuner_priv; - - *frequency = 1000 * state->current_rf; - return 0; -} - -static int dib0090_set_params(struct dvb_frontend *fe, struct dvb_frontend_parameters *p) -{ - struct dib0090_state *state = fe->tuner_priv; - uint32_t ret; - - state->tune_state = CT_TUNER_START; - - do { - ret = dib0090_tune(fe); - if (ret != FE_CALLBACK_TIME_NEVER) - msleep(ret / 10); - else - break; - } while (state->tune_state != CT_TUNER_STOP); - - return 0; -} - -static const struct dvb_tuner_ops dib0090_ops = { - .info = { - .name = "DiBcom DiB0090", - .frequency_min = 45000000, - .frequency_max = 860000000, - .frequency_step = 1000, - }, - .release = dib0090_release, - - .init = dib0090_wakeup, - .sleep = dib0090_sleep, - .set_params = dib0090_set_params, - .get_frequency = dib0090_get_frequency, -}; - -struct dvb_frontend *dib0090_register(struct dvb_frontend *fe, struct i2c_adapter *i2c, const struct dib0090_config *config) -{ - struct dib0090_state *st = kzalloc(sizeof(struct dib0090_state), GFP_KERNEL); - if (st == NULL) - return NULL; - - st->config = config; - st->i2c = i2c; - st->fe = fe; - fe->tuner_priv = st; - - if (dib0090_reset(fe) != 0) - goto free_mem; - - printk(KERN_INFO "DiB0090: successfully identified\n"); - memcpy(&fe->ops.tuner_ops, &dib0090_ops, sizeof(struct dvb_tuner_ops)); - - return fe; - free_mem: - kfree(st); - fe->tuner_priv = NULL; - return NULL; -} -EXPORT_SYMBOL(dib0090_register); - -MODULE_AUTHOR("Patrick Boettcher <pboettcher@dibcom.fr>"); -MODULE_AUTHOR("Olivier Grenie <olivier.grenie@dibcom.fr>"); -MODULE_DESCRIPTION("Driver for the DiBcom 0090 base-band RF Tuner"); -MODULE_LICENSE("GPL"); |