summaryrefslogtreecommitdiff
path: root/drivers/media/dvb/frontends/dib0070.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/dvb/frontends/dib0070.c')
-rw-r--r--drivers/media/dvb/frontends/dib0070.c780
1 files changed, 0 insertions, 780 deletions
diff --git a/drivers/media/dvb/frontends/dib0070.c b/drivers/media/dvb/frontends/dib0070.c
deleted file mode 100644
index 3b024bfe980a..000000000000
--- a/drivers/media/dvb/frontends/dib0070.c
+++ /dev/null
@@ -1,780 +0,0 @@
-/*
- * Linux-DVB Driver for DiBcom's DiB0070 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 <linux/mutex.h>
-
-#include "dvb_frontend.h"
-
-#include "dib0070.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 "DiB0070: "); \
- printk(args); \
- printk("\n"); \
- } \
-} while (0)
-
-#define DIB0070_P1D 0x00
-#define DIB0070_P1F 0x01
-#define DIB0070_P1G 0x03
-#define DIB0070S_P1A 0x02
-
-struct dib0070_state {
- struct i2c_adapter *i2c;
- struct dvb_frontend *fe;
- const struct dib0070_config *cfg;
- u16 wbd_ff_offset;
- u8 revision;
-
- enum frontend_tune_state tune_state;
- u32 current_rf;
-
- /* for the captrim binary search */
- s8 step;
- u16 adc_diff;
-
- s8 captrim;
- s8 fcaptrim;
- u16 lo4;
-
- const struct dib0070_tuning *current_tune_table_index;
- const struct dib0070_lna_match *lna_match;
-
- u8 wbd_gain_current;
- u16 wbd_offset_3_3[2];
-
- /* for the I2C transfer */
- struct i2c_msg msg[2];
- u8 i2c_write_buffer[3];
- u8 i2c_read_buffer[2];
- struct mutex i2c_buffer_lock;
-};
-
-static u16 dib0070_read_reg(struct dib0070_state *state, u8 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;
-
- memset(state->msg, 0, 2 * sizeof(struct i2c_msg));
- state->msg[0].addr = state->cfg->i2c_address;
- state->msg[0].flags = 0;
- state->msg[0].buf = state->i2c_write_buffer;
- state->msg[0].len = 1;
- state->msg[1].addr = state->cfg->i2c_address;
- 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, state->msg, 2) != 2) {
- printk(KERN_WARNING "DiB0070 I2C read failed\n");
- ret = 0;
- } else
- ret = (state->i2c_read_buffer[0] << 8)
- | state->i2c_read_buffer[1];
-
- mutex_unlock(&state->i2c_buffer_lock);
- return ret;
-}
-
-static int dib0070_write_reg(struct dib0070_state *state, u8 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;
- state->i2c_write_buffer[1] = val >> 8;
- state->i2c_write_buffer[2] = val & 0xff;
-
- memset(state->msg, 0, sizeof(struct i2c_msg));
- state->msg[0].addr = state->cfg->i2c_address;
- state->msg[0].flags = 0;
- state->msg[0].buf = state->i2c_write_buffer;
- state->msg[0].len = 3;
-
- if (i2c_transfer(state->i2c, state->msg, 1) != 1) {
- printk(KERN_WARNING "DiB0070 I2C write failed\n");
- ret = -EREMOTEIO;
- } else
- ret = 0;
-
- mutex_unlock(&state->i2c_buffer_lock);
- return ret;
-}
-
-#define HARD_RESET(state) do { \
- state->cfg->sleep(state->fe, 0); \
- if (state->cfg->reset) { \
- state->cfg->reset(state->fe,1); msleep(10); \
- state->cfg->reset(state->fe,0); msleep(10); \
- } \
-} while (0)
-
-static int dib0070_set_bandwidth(struct dvb_frontend *fe)
-{
- struct dib0070_state *state = fe->tuner_priv;
- u16 tmp = dib0070_read_reg(state, 0x02) & 0x3fff;
-
- if (state->fe->dtv_property_cache.bandwidth_hz/1000 > 7000)
- tmp |= (0 << 14);
- else if (state->fe->dtv_property_cache.bandwidth_hz/1000 > 6000)
- tmp |= (1 << 14);
- else if (state->fe->dtv_property_cache.bandwidth_hz/1000 > 5000)
- tmp |= (2 << 14);
- else
- tmp |= (3 << 14);
-
- dib0070_write_reg(state, 0x02, tmp);
-
- /* sharpen the BB filter in ISDB-T to have higher immunity to adjacent channels */
- if (state->fe->dtv_property_cache.delivery_system == SYS_ISDBT) {
- u16 value = dib0070_read_reg(state, 0x17);
-
- dib0070_write_reg(state, 0x17, value & 0xfffc);
- tmp = dib0070_read_reg(state, 0x01) & 0x01ff;
- dib0070_write_reg(state, 0x01, tmp | (60 << 9));
-
- dib0070_write_reg(state, 0x17, value);
- }
- return 0;
-}
-
-static int dib0070_captrim(struct dib0070_state *state, enum frontend_tune_state *tune_state)
-{
- int8_t step_sign;
- u16 adc;
- int ret = 0;
-
- if (*tune_state == CT_TUNER_STEP_0) {
-
- dib0070_write_reg(state, 0x0f, 0xed10);
- dib0070_write_reg(state, 0x17, 0x0034);
-
- dib0070_write_reg(state, 0x18, 0x0032);
- state->step = state->captrim = state->fcaptrim = 64;
- state->adc_diff = 3000;
- ret = 20;
-
- *tune_state = CT_TUNER_STEP_1;
- } else if (*tune_state == CT_TUNER_STEP_1) {
- state->step /= 2;
- dib0070_write_reg(state, 0x14, state->lo4 | state->captrim);
- ret = 15;
-
- *tune_state = CT_TUNER_STEP_2;
- } else if (*tune_state == CT_TUNER_STEP_2) {
-
- adc = dib0070_read_reg(state, 0x19);
-
- dprintk("CAPTRIM=%hd; ADC = %hd (ADC) & %dmV", state->captrim, 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("CAPTRIM=%hd is closer to target (%hd/%hd)", state->captrim, adc, 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;
-
- } else if (*tune_state == CT_TUNER_STEP_3) {
- dib0070_write_reg(state, 0x14, state->lo4 | state->fcaptrim);
- dib0070_write_reg(state, 0x18, 0x07ff);
- *tune_state = CT_TUNER_STEP_4;
- }
-
- return ret;
-}
-
-static int dib0070_set_ctrl_lo5(struct dvb_frontend *fe, u8 vco_bias_trim, u8 hf_div_trim, u8 cp_current, u8 third_order_filt)
-{
- struct dib0070_state *state = fe->tuner_priv;
- u16 lo5 = (third_order_filt << 14) | (0 << 13) | (1 << 12) | (3 << 9) | (cp_current << 6) | (hf_div_trim << 3) | (vco_bias_trim << 0);
- dprintk("CTRL_LO5: 0x%x", lo5);
- return dib0070_write_reg(state, 0x15, lo5);
-}
-
-void dib0070_ctrl_agc_filter(struct dvb_frontend *fe, u8 open)
-{
- struct dib0070_state *state = fe->tuner_priv;
-
- if (open) {
- dib0070_write_reg(state, 0x1b, 0xff00);
- dib0070_write_reg(state, 0x1a, 0x0000);
- } else {
- dib0070_write_reg(state, 0x1b, 0x4112);
- if (state->cfg->vga_filter != 0) {
- dib0070_write_reg(state, 0x1a, state->cfg->vga_filter);
- dprintk("vga filter register is set to %x", state->cfg->vga_filter);
- } else
- dib0070_write_reg(state, 0x1a, 0x0009);
- }
-}
-
-EXPORT_SYMBOL(dib0070_ctrl_agc_filter);
-struct dib0070_tuning {
- u32 max_freq; /* for every frequency less than or equal to that field: this information is correct */
- u8 switch_trim;
- u8 vco_band;
- u8 hfdiv;
- u8 vco_multi;
- u8 presc;
- u8 wbdmux;
- u16 tuner_enable;
-};
-
-struct dib0070_lna_match {
- u32 max_freq; /* for every frequency less than or equal to that field: this information is correct */
- u8 lna_band;
-};
-
-static const struct dib0070_tuning dib0070s_tuning_table[] = {
- { 570000, 2, 1, 3, 6, 6, 2, 0x4000 | 0x0800 }, /* UHF */
- { 700000, 2, 0, 2, 4, 2, 2, 0x4000 | 0x0800 },
- { 863999, 2, 1, 2, 4, 2, 2, 0x4000 | 0x0800 },
- { 1500000, 0, 1, 1, 2, 2, 4, 0x2000 | 0x0400 }, /* LBAND */
- { 1600000, 0, 1, 1, 2, 2, 4, 0x2000 | 0x0400 },
- { 2000000, 0, 1, 1, 2, 2, 4, 0x2000 | 0x0400 },
- { 0xffffffff, 0, 0, 8, 1, 2, 1, 0x8000 | 0x1000 }, /* SBAND */
-};
-
-static const struct dib0070_tuning dib0070_tuning_table[] = {
- { 115000, 1, 0, 7, 24, 2, 1, 0x8000 | 0x1000 }, /* FM below 92MHz cannot be tuned */
- { 179500, 1, 0, 3, 16, 2, 1, 0x8000 | 0x1000 }, /* VHF */
- { 189999, 1, 1, 3, 16, 2, 1, 0x8000 | 0x1000 },
- { 250000, 1, 0, 6, 12, 2, 1, 0x8000 | 0x1000 },
- { 569999, 2, 1, 5, 6, 2, 2, 0x4000 | 0x0800 }, /* UHF */
- { 699999, 2, 0, 1, 4, 2, 2, 0x4000 | 0x0800 },
- { 863999, 2, 1, 1, 4, 2, 2, 0x4000 | 0x0800 },
- { 0xffffffff, 0, 1, 0, 2, 2, 4, 0x2000 | 0x0400 }, /* LBAND or everything higher than UHF */
-};
-
-static const struct dib0070_lna_match dib0070_lna_flip_chip[] = {
- { 180000, 0 }, /* VHF */
- { 188000, 1 },
- { 196400, 2 },
- { 250000, 3 },
- { 550000, 0 }, /* UHF */
- { 590000, 1 },
- { 666000, 3 },
- { 864000, 5 },
- { 1500000, 0 }, /* LBAND or everything higher than UHF */
- { 1600000, 1 },
- { 2000000, 3 },
- { 0xffffffff, 7 },
-};
-
-static const struct dib0070_lna_match dib0070_lna[] = {
- { 180000, 0 }, /* VHF */
- { 188000, 1 },
- { 196400, 2 },
- { 250000, 3 },
- { 550000, 2 }, /* UHF */
- { 650000, 3 },
- { 750000, 5 },
- { 850000, 6 },
- { 864000, 7 },
- { 1500000, 0 }, /* LBAND or everything higher than UHF */
- { 1600000, 1 },
- { 2000000, 3 },
- { 0xffffffff, 7 },
-};
-
-#define LPF 100
-static int dib0070_tune_digital(struct dvb_frontend *fe)
-{
- struct dib0070_state *state = fe->tuner_priv;
-
- const struct dib0070_tuning *tune;
- const struct dib0070_lna_match *lna_match;
-
- enum frontend_tune_state *tune_state = &state->tune_state;
- int ret = 10; /* 1ms is the default delay most of the time */
-
- u8 band = (u8)BAND_OF_FREQUENCY(fe->dtv_property_cache.frequency/1000);
- u32 freq = fe->dtv_property_cache.frequency/1000 + (band == BAND_VHF ? state->cfg->freq_offset_khz_vhf : state->cfg->freq_offset_khz_uhf);
-
-#ifdef CONFIG_SYS_ISDBT
- if (state->fe->dtv_property_cache.delivery_system == SYS_ISDBT && state->fe->dtv_property_cache.isdbt_sb_mode == 1)
- if (((state->fe->dtv_property_cache.isdbt_sb_segment_count % 2)
- && (state->fe->dtv_property_cache.isdbt_sb_segment_idx == ((state->fe->dtv_property_cache.isdbt_sb_segment_count / 2) + 1)))
- || (((state->fe->dtv_property_cache.isdbt_sb_segment_count % 2) == 0)
- && (state->fe->dtv_property_cache.isdbt_sb_segment_idx == (state->fe->dtv_property_cache.isdbt_sb_segment_count / 2)))
- || (((state->fe->dtv_property_cache.isdbt_sb_segment_count % 2) == 0)
- && (state->fe->dtv_property_cache.isdbt_sb_segment_idx == ((state->fe->dtv_property_cache.isdbt_sb_segment_count / 2) + 1))))
- freq += 850;
-#endif
- if (state->current_rf != freq) {
-
- switch (state->revision) {
- case DIB0070S_P1A:
- tune = dib0070s_tuning_table;
- lna_match = dib0070_lna;
- break;
- default:
- tune = dib0070_tuning_table;
- if (state->cfg->flip_chip)
- lna_match = dib0070_lna_flip_chip;
- else
- lna_match = dib0070_lna;
- break;
- }
- while (freq > tune->max_freq) /* find the right one */
- tune++;
- while (freq > lna_match->max_freq) /* find the right one */
- lna_match++;
-
- state->current_tune_table_index = tune;
- state->lna_match = lna_match;
- }
-
- if (*tune_state == CT_TUNER_START) {
- dprintk("Tuning for Band: %hd (%d kHz)", band, freq);
- if (state->current_rf != freq) {
- u8 REFDIV;
- u32 FBDiv, Rest, FREF, VCOF_kHz;
- u8 Den;
-
- state->current_rf = freq;
- state->lo4 = (state->current_tune_table_index->vco_band << 11) | (state->current_tune_table_index->hfdiv << 7);
-
-
- dib0070_write_reg(state, 0x17, 0x30);
-
-
- VCOF_kHz = state->current_tune_table_index->vco_multi * freq * 2;
-
- switch (band) {
- case BAND_VHF:
- REFDIV = (u8) ((state->cfg->clock_khz + 9999) / 10000);
- break;
- case BAND_FM:
- REFDIV = (u8) ((state->cfg->clock_khz) / 1000);
- break;
- default:
- REFDIV = (u8) (state->cfg->clock_khz / 10000);
- break;
- }
- FREF = state->cfg->clock_khz / REFDIV;
-
-
-
- switch (state->revision) {
- case DIB0070S_P1A:
- FBDiv = (VCOF_kHz / state->current_tune_table_index->presc / FREF);
- Rest = (VCOF_kHz / state->current_tune_table_index->presc) - FBDiv * FREF;
- break;
-
- case DIB0070_P1G:
- case DIB0070_P1F:
- default:
- FBDiv = (freq / (FREF / 2));
- Rest = 2 * freq - FBDiv * FREF;
- break;
- }
-
- 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;
- if (Rest > 0) {
- state->lo4 |= (1 << 14) | (1 << 12);
- Den = 255;
- }
-
-
- dib0070_write_reg(state, 0x11, (u16)FBDiv);
- dib0070_write_reg(state, 0x12, (Den << 8) | REFDIV);
- dib0070_write_reg(state, 0x13, (u16) Rest);
-
- if (state->revision == DIB0070S_P1A) {
-
- if (band == BAND_SBAND) {
- dib0070_set_ctrl_lo5(fe, 2, 4, 3, 0);
- dib0070_write_reg(state, 0x1d, 0xFFFF);
- } else
- dib0070_set_ctrl_lo5(fe, 5, 4, 3, 1);
- }
-
- dib0070_write_reg(state, 0x20,
- 0x0040 | 0x0020 | 0x0010 | 0x0008 | 0x0002 | 0x0001 | state->current_tune_table_index->tuner_enable);
-
- dprintk("REFDIV: %hd, FREF: %d", REFDIV, FREF);
- dprintk("FBDIV: %d, Rest: %d", FBDiv, Rest);
- dprintk("Num: %hd, Den: %hd, SD: %hd", (u16) Rest, Den, (state->lo4 >> 12) & 0x1);
- dprintk("HFDIV code: %hd", state->current_tune_table_index->hfdiv);
- dprintk("VCO = %hd", state->current_tune_table_index->vco_band);
- dprintk("VCOF: ((%hd*%d) << 1))", state->current_tune_table_index->vco_multi, freq);
-
- *tune_state = CT_TUNER_STEP_0;
- } else { /* we are already tuned to this frequency - the configuration is correct */
- ret = 50; /* wakeup time */
- *tune_state = CT_TUNER_STEP_5;
- }
- } else if ((*tune_state > CT_TUNER_START) && (*tune_state < CT_TUNER_STEP_4)) {
-
- ret = dib0070_captrim(state, tune_state);
-
- } else if (*tune_state == CT_TUNER_STEP_4) {
- const struct dib0070_wbd_gain_cfg *tmp = state->cfg->wbd_gain;
- if (tmp != NULL) {
- while (freq/1000 > tmp->freq) /* find the right one */
- tmp++;
- dib0070_write_reg(state, 0x0f,
- (0 << 15) | (1 << 14) | (3 << 12)
- | (tmp->wbd_gain_val << 9) | (0 << 8) | (1 << 7)
- | (state->current_tune_table_index->wbdmux << 0));
- state->wbd_gain_current = tmp->wbd_gain_val;
- } else {
- dib0070_write_reg(state, 0x0f,
- (0 << 15) | (1 << 14) | (3 << 12) | (6 << 9) | (0 << 8) | (1 << 7) | (state->current_tune_table_index->
- wbdmux << 0));
- state->wbd_gain_current = 6;
- }
-
- dib0070_write_reg(state, 0x06, 0x3fff);
- dib0070_write_reg(state, 0x07,
- (state->current_tune_table_index->switch_trim << 11) | (7 << 8) | (state->lna_match->lna_band << 3) | (3 << 0));
- dib0070_write_reg(state, 0x08, (state->lna_match->lna_band << 10) | (3 << 7) | (127));
- dib0070_write_reg(state, 0x0d, 0x0d80);
-
-
- dib0070_write_reg(state, 0x18, 0x07ff);
- dib0070_write_reg(state, 0x17, 0x0033);
-
-
- *tune_state = CT_TUNER_STEP_5;
- } else if (*tune_state == CT_TUNER_STEP_5) {
- dib0070_set_bandwidth(fe);
- *tune_state = CT_TUNER_STOP;
- } else {
- ret = FE_CALLBACK_TIME_NEVER; /* tuner finished, time to call again infinite */
- }
- return ret;
-}
-
-
-static int dib0070_tune(struct dvb_frontend *fe)
-{
- struct dib0070_state *state = fe->tuner_priv;
- uint32_t ret;
-
- state->tune_state = CT_TUNER_START;
-
- do {
- ret = dib0070_tune_digital(fe);
- if (ret != FE_CALLBACK_TIME_NEVER)
- msleep(ret/10);
- else
- break;
- } while (state->tune_state != CT_TUNER_STOP);
-
- return 0;
-}
-
-static int dib0070_wakeup(struct dvb_frontend *fe)
-{
- struct dib0070_state *state = fe->tuner_priv;
- if (state->cfg->sleep)
- state->cfg->sleep(fe, 0);
- return 0;
-}
-
-static int dib0070_sleep(struct dvb_frontend *fe)
-{
- struct dib0070_state *state = fe->tuner_priv;
- if (state->cfg->sleep)
- state->cfg->sleep(fe, 1);
- return 0;
-}
-
-u8 dib0070_get_rf_output(struct dvb_frontend *fe)
-{
- struct dib0070_state *state = fe->tuner_priv;
- return (dib0070_read_reg(state, 0x07) >> 11) & 0x3;
-}
-EXPORT_SYMBOL(dib0070_get_rf_output);
-
-int dib0070_set_rf_output(struct dvb_frontend *fe, u8 no)
-{
- struct dib0070_state *state = fe->tuner_priv;
- u16 rxrf2 = dib0070_read_reg(state, 0x07) & 0xfe7ff;
- if (no > 3)
- no = 3;
- if (no < 1)
- no = 1;
- return dib0070_write_reg(state, 0x07, rxrf2 | (no << 11));
-}
-EXPORT_SYMBOL(dib0070_set_rf_output);
-
-static const u16 dib0070_p1f_defaults[] =
-
-{
- 7, 0x02,
- 0x0008,
- 0x0000,
- 0x0000,
- 0x0000,
- 0x0000,
- 0x0002,
- 0x0100,
-
- 3, 0x0d,
- 0x0d80,
- 0x0001,
- 0x0000,
-
- 4, 0x11,
- 0x0000,
- 0x0103,
- 0x0000,
- 0x0000,
-
- 3, 0x16,
- 0x0004 | 0x0040,
- 0x0030,
- 0x07ff,
-
- 6, 0x1b,
- 0x4112,
- 0xff00,
- 0xc07f,
- 0x0000,
- 0x0180,
- 0x4000 | 0x0800 | 0x0040 | 0x0020 | 0x0010 | 0x0008 | 0x0002 | 0x0001,
-
- 0,
-};
-
-static u16 dib0070_read_wbd_offset(struct dib0070_state *state, u8 gain)
-{
- u16 tuner_en = dib0070_read_reg(state, 0x20);
- u16 offset;
-
- dib0070_write_reg(state, 0x18, 0x07ff);
- dib0070_write_reg(state, 0x20, 0x0800 | 0x4000 | 0x0040 | 0x0020 | 0x0010 | 0x0008 | 0x0002 | 0x0001);
- dib0070_write_reg(state, 0x0f, (1 << 14) | (2 << 12) | (gain << 9) | (1 << 8) | (1 << 7) | (0 << 0));
- msleep(9);
- offset = dib0070_read_reg(state, 0x19);
- dib0070_write_reg(state, 0x20, tuner_en);
- return offset;
-}
-
-static void dib0070_wbd_offset_calibration(struct dib0070_state *state)
-{
- u8 gain;
- for (gain = 6; gain < 8; gain++) {
- state->wbd_offset_3_3[gain - 6] = ((dib0070_read_wbd_offset(state, gain) * 8 * 18 / 33 + 1) / 2);
- dprintk("Gain: %d, WBDOffset (3.3V) = %hd", gain, state->wbd_offset_3_3[gain-6]);
- }
-}
-
-u16 dib0070_wbd_offset(struct dvb_frontend *fe)
-{
- struct dib0070_state *state = fe->tuner_priv;
- const struct dib0070_wbd_gain_cfg *tmp = state->cfg->wbd_gain;
- u32 freq = fe->dtv_property_cache.frequency/1000;
-
- if (tmp != NULL) {
- while (freq/1000 > tmp->freq) /* find the right one */
- tmp++;
- state->wbd_gain_current = tmp->wbd_gain_val;
- } else
- state->wbd_gain_current = 6;
-
- return state->wbd_offset_3_3[state->wbd_gain_current - 6];
-}
-EXPORT_SYMBOL(dib0070_wbd_offset);
-
-#define pgm_read_word(w) (*w)
-static int dib0070_reset(struct dvb_frontend *fe)
-{
- struct dib0070_state *state = fe->tuner_priv;
- u16 l, r, *n;
-
- HARD_RESET(state);
-
-
-#ifndef FORCE_SBAND_TUNER
- if ((dib0070_read_reg(state, 0x22) >> 9) & 0x1)
- state->revision = (dib0070_read_reg(state, 0x1f) >> 8) & 0xff;
- else
-#else
-#warning forcing SBAND
-#endif
- state->revision = DIB0070S_P1A;
-
- /* P1F or not */
- dprintk("Revision: %x", state->revision);
-
- if (state->revision == DIB0070_P1D) {
- dprintk("Error: this driver is not to be used meant for P1D or earlier");
- return -EINVAL;
- }
-
- n = (u16 *) dib0070_p1f_defaults;
- l = pgm_read_word(n++);
- while (l) {
- r = pgm_read_word(n++);
- do {
- dib0070_write_reg(state, (u8)r, pgm_read_word(n++));
- r++;
- } while (--l);
- l = pgm_read_word(n++);
- }
-
- if (state->cfg->force_crystal_mode != 0)
- r = state->cfg->force_crystal_mode;
- else if (state->cfg->clock_khz >= 24000)
- r = 1;
- else
- r = 2;
-
-
- r |= state->cfg->osc_buffer_state << 3;
-
- dib0070_write_reg(state, 0x10, r);
- dib0070_write_reg(state, 0x1f, (1 << 8) | ((state->cfg->clock_pad_drive & 0xf) << 5));
-
- if (state->cfg->invert_iq) {
- r = dib0070_read_reg(state, 0x02) & 0xffdf;
- dib0070_write_reg(state, 0x02, r | (1 << 5));
- }
-
- if (state->revision == DIB0070S_P1A)
- dib0070_set_ctrl_lo5(fe, 2, 4, 3, 0);
- else
- dib0070_set_ctrl_lo5(fe, 5, 4, state->cfg->charge_pump, state->cfg->enable_third_order_filter);
-
- dib0070_write_reg(state, 0x01, (54 << 9) | 0xc8);
-
- dib0070_wbd_offset_calibration(state);
-
- return 0;
-}
-
-static int dib0070_get_frequency(struct dvb_frontend *fe, u32 *frequency)
-{
- struct dib0070_state *state = fe->tuner_priv;
-
- *frequency = 1000 * state->current_rf;
- return 0;
-}
-
-static int dib0070_release(struct dvb_frontend *fe)
-{
- kfree(fe->tuner_priv);
- fe->tuner_priv = NULL;
- return 0;
-}
-
-static const struct dvb_tuner_ops dib0070_ops = {
- .info = {
- .name = "DiBcom DiB0070",
- .frequency_min = 45000000,
- .frequency_max = 860000000,
- .frequency_step = 1000,
- },
- .release = dib0070_release,
-
- .init = dib0070_wakeup,
- .sleep = dib0070_sleep,
- .set_params = dib0070_tune,
-
- .get_frequency = dib0070_get_frequency,
-// .get_bandwidth = dib0070_get_bandwidth
-};
-
-struct dvb_frontend *dib0070_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, struct dib0070_config *cfg)
-{
- struct dib0070_state *state = kzalloc(sizeof(struct dib0070_state), GFP_KERNEL);
- if (state == NULL)
- return NULL;
-
- state->cfg = cfg;
- state->i2c = i2c;
- state->fe = fe;
- mutex_init(&state->i2c_buffer_lock);
- fe->tuner_priv = state;
-
- if (dib0070_reset(fe) != 0)
- goto free_mem;
-
- printk(KERN_INFO "DiB0070: successfully identified\n");
- memcpy(&fe->ops.tuner_ops, &dib0070_ops, sizeof(struct dvb_tuner_ops));
-
- fe->tuner_priv = state;
- return fe;
-
-free_mem:
- kfree(state);
- fe->tuner_priv = NULL;
- return NULL;
-}
-EXPORT_SYMBOL(dib0070_attach);
-
-MODULE_AUTHOR("Patrick Boettcher <pboettcher@dibcom.fr>");
-MODULE_DESCRIPTION("Driver for the DiBcom 0070 base-band RF Tuner");
-MODULE_LICENSE("GPL");
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-02 23:02:14 +0300