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path: root/drivers/media/dvb/frontends/dib0070.c
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Diffstat (limited to 'drivers/media/dvb/frontends/dib0070.c')
-rw-r--r--drivers/media/dvb/frontends/dib0070.c589
1 files changed, 0 insertions, 589 deletions
diff --git a/drivers/media/dvb/frontends/dib0070.c b/drivers/media/dvb/frontends/dib0070.c
deleted file mode 100644
index fe895bf7b18..00000000000
--- a/drivers/media/dvb/frontends/dib0070.c
+++ /dev/null
@@ -1,589 +0,0 @@
-/*
- * Linux-DVB Driver for DiBcom's DiB0070 base-band RF Tuner.
- *
- * 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/i2c.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;
-};
-
-static uint16_t dib0070_read_reg(struct dib0070_state *state, u8 reg)
-{
- u8 b[2];
- struct i2c_msg msg[2] = {
- { .addr = state->cfg->i2c_address, .flags = 0, .buf = &reg, .len = 1 },
- { .addr = state->cfg->i2c_address, .flags = I2C_M_RD, .buf = b, .len = 2 },
- };
- if (i2c_transfer(state->i2c, msg, 2) != 2) {
- printk(KERN_WARNING "DiB0070 I2C read failed\n");
- return 0;
- }
- return (b[0] << 8) | b[1];
-}
-
-static int dib0070_write_reg(struct dib0070_state *state, u8 reg, u16 val)
-{
- u8 b[3] = { reg, val >> 8, val & 0xff };
- struct i2c_msg msg = { .addr = state->cfg->i2c_address, .flags = 0, .buf = b, .len = 3 };
- if (i2c_transfer(state->i2c, &msg, 1) != 1) {
- printk(KERN_WARNING "DiB0070 I2C write failed\n");
- return -EREMOTEIO;
- }
- return 0;
-}
-
-#define HARD_RESET(state) do { 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 dvb_frontend_parameters *ch)
-{
- struct dib0070_state *st = fe->tuner_priv;
- u16 tmp = 0;
- tmp = dib0070_read_reg(st, 0x02) & 0x3fff;
-
- switch(BANDWIDTH_TO_KHZ(ch->u.ofdm.bandwidth)) {
- case 8000:
- tmp |= (0 << 14);
- break;
- case 7000:
- tmp |= (1 << 14);
- break;
- case 6000:
- tmp |= (2 << 14);
- break;
- case 5000:
- default:
- tmp |= (3 << 14);
- break;
- }
- dib0070_write_reg(st, 0x02, tmp);
- return 0;
-}
-
-static void dib0070_captrim(struct dib0070_state *st, u16 LO4)
-{
- int8_t captrim, fcaptrim, step_sign, step;
- u16 adc, adc_diff = 3000;
-
-
-
- dib0070_write_reg(st, 0x0f, 0xed10);
- dib0070_write_reg(st, 0x17, 0x0034);
-
- dib0070_write_reg(st, 0x18, 0x0032);
- msleep(2);
-
- step = captrim = fcaptrim = 64;
-
- do {
- step /= 2;
- dib0070_write_reg(st, 0x14, LO4 | captrim);
- msleep(1);
- adc = dib0070_read_reg(st, 0x19);
-
- dprintk( "CAPTRIM=%hd; ADC = %hd (ADC) & %dmV", 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 < adc_diff) {
- dprintk( "CAPTRIM=%hd is closer to target (%hd/%hd)", captrim, adc, adc_diff);
- adc_diff = adc;
- fcaptrim = captrim;
-
-
-
- }
- captrim += (step_sign * step);
- } while (step >= 1);
-
- dib0070_write_reg(st, 0x14, LO4 | fcaptrim);
- dib0070_write_reg(st, 0x18, 0x07ff);
-}
-
-#define LPF 100 // define for the loop filter 100kHz by default 16-07-06
-#define LO4_SET_VCO_HFDIV(l, v, h) l |= ((v) << 11) | ((h) << 7)
-#define LO4_SET_SD(l, s) l |= ((s) << 14) | ((s) << 12)
-#define LO4_SET_CTRIM(l, c) l |= (c) << 10
-static int dib0070_tune_digital(struct dvb_frontend *fe, struct dvb_frontend_parameters *ch)
-{
- struct dib0070_state *st = fe->tuner_priv;
- u32 freq = ch->frequency/1000 + (BAND_OF_FREQUENCY(ch->frequency/1000) == BAND_VHF ? st->cfg->freq_offset_khz_vhf : st->cfg->freq_offset_khz_uhf);
-
- u8 band = BAND_OF_FREQUENCY(freq), c;
-
- /*******************VCO***********************************/
- u16 lo4 = 0;
-
- u8 REFDIV, PRESC = 2;
- u32 FBDiv, Rest, FREF, VCOF_kHz;
- u16 Num, Den;
- /*******************FrontEnd******************************/
- u16 value = 0;
-
- dprintk( "Tuning for Band: %hd (%d kHz)", band, freq);
-
-
- dib0070_write_reg(st, 0x17, 0x30);
-
- dib0070_set_bandwidth(fe, ch); /* c is used as HF */
- switch (st->revision) {
- case DIB0070S_P1A:
- switch (band) {
- case BAND_LBAND:
- LO4_SET_VCO_HFDIV(lo4, 1, 1);
- c = 2;
- break;
- case BAND_SBAND:
- LO4_SET_VCO_HFDIV(lo4, 0, 0);
- LO4_SET_CTRIM(lo4, 1);;
- c = 1;
- break;
- case BAND_UHF:
- default:
- if (freq < 570000) {
- LO4_SET_VCO_HFDIV(lo4, 1, 3);
- PRESC = 6; c = 6;
- } else if (freq < 680000) {
- LO4_SET_VCO_HFDIV(lo4, 0, 2);
- c = 4;
- } else {
- LO4_SET_VCO_HFDIV(lo4, 1, 2);
- c = 4;
- }
- break;
- } break;
-
- case DIB0070_P1G:
- case DIB0070_P1F:
- default:
- switch (band) {
- case BAND_FM:
- LO4_SET_VCO_HFDIV(lo4, 0, 7);
- c = 24;
- break;
- case BAND_LBAND:
- LO4_SET_VCO_HFDIV(lo4, 1, 0);
- c = 2;
- break;
- case BAND_VHF:
- if (freq < 180000) {
- LO4_SET_VCO_HFDIV(lo4, 0, 3);
- c = 16;
- } else if (freq < 190000) {
- LO4_SET_VCO_HFDIV(lo4, 1, 3);
- c = 16;
- } else {
- LO4_SET_VCO_HFDIV(lo4, 0, 6);
- c = 12;
- }
- break;
-
- case BAND_UHF:
- default:
- if (freq < 570000) {
- LO4_SET_VCO_HFDIV(lo4, 1, 5);
- c = 6;
- } else if (freq < 700000) {
- LO4_SET_VCO_HFDIV(lo4, 0, 1);
- c = 4;
- } else {
- LO4_SET_VCO_HFDIV(lo4, 1, 1);
- c = 4;
- }
- break;
- }
- break;
- }
-
- dprintk( "HFDIV code: %hd", (lo4 >> 7) & 0xf);
- dprintk( "VCO = %hd", (lo4 >> 11) & 0x3);
-
-
- VCOF_kHz = (c * freq) * 2;
- dprintk( "VCOF in kHz: %d ((%hd*%d) << 1))",VCOF_kHz, c, freq);
-
- switch (band) {
- case BAND_VHF:
- REFDIV = (u8) ((st->cfg->clock_khz + 9999) / 10000);
- break;
- case BAND_FM:
- REFDIV = (u8) ((st->cfg->clock_khz) / 1000);
- break;
- default:
- REFDIV = (u8) ( st->cfg->clock_khz / 10000);
- break;
- }
- FREF = st->cfg->clock_khz / REFDIV;
-
- dprintk( "REFDIV: %hd, FREF: %d", REFDIV, FREF);
-
-
-
- switch (st->revision) {
- case DIB0070S_P1A:
- FBDiv = (VCOF_kHz / PRESC / FREF);
- Rest = (VCOF_kHz / 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);
- dprintk( "FBDIV: %d, Rest: %d", FBDiv, Rest);
-
- Num = 0;
- Den = 1;
-
- if (Rest > 0) {
- LO4_SET_SD(lo4, 1);
- Den = 255;
- Num = (u16)Rest;
- }
- dprintk( "Num: %hd, Den: %hd, SD: %hd",Num, Den, (lo4 >> 12) & 0x1);
-
-
-
- dib0070_write_reg(st, 0x11, (u16)FBDiv);
-
-
- dib0070_write_reg(st, 0x12, (Den << 8) | REFDIV);
-
-
- dib0070_write_reg(st, 0x13, Num);
-
-
- value = 0x0040 | 0x0020 | 0x0010 | 0x0008 | 0x0002 | 0x0001;
-
- switch (band) {
- case BAND_UHF: value |= 0x4000 | 0x0800; break;
- case BAND_LBAND: value |= 0x2000 | 0x0400; break;
- default: value |= 0x8000 | 0x1000; break;
- }
- dib0070_write_reg(st, 0x20, value);
-
- dib0070_captrim(st, lo4);
- if (st->revision == DIB0070S_P1A) {
- if (band == BAND_SBAND)
- dib0070_write_reg(st, 0x15, 0x16e2);
- else
- dib0070_write_reg(st, 0x15, 0x56e5);
- }
-
-
-
- switch (band) {
- case BAND_UHF: value = 0x7c82; break;
- case BAND_LBAND: value = 0x7c84; break;
- default: value = 0x7c81; break;
- }
- dib0070_write_reg(st, 0x0f, value);
- dib0070_write_reg(st, 0x06, 0x3fff);
-
- /* Front End */
- /* c == TUNE, value = SWITCH */
- c = 0;
- value = 0;
- switch (band) {
- case BAND_FM:
- c = 0; value = 1;
- break;
-
- case BAND_VHF:
- if (freq <= 180000) c = 0;
- else if (freq <= 188200) c = 1;
- else if (freq <= 196400) c = 2;
- else c = 3;
- value = 1;
- break;
-
- case BAND_LBAND:
- if (freq <= 1500000) c = 0;
- else if (freq <= 1600000) c = 1;
- else c = 3;
- break;
-
- case BAND_SBAND:
- c = 7;
- dib0070_write_reg(st, 0x1d,0xFFFF);
- break;
-
- case BAND_UHF:
- default:
- if (st->cfg->flip_chip) {
- if (freq <= 550000) c = 0;
- else if (freq <= 590000) c = 1;
- else if (freq <= 666000) c = 3;
- else c = 5;
- } else {
- if (freq <= 550000) c = 2;
- else if (freq <= 650000) c = 3;
- else if (freq <= 750000) c = 5;
- else if (freq <= 850000) c = 6;
- else c = 7;
- }
- value = 2;
- break;
- }
-
- /* default: LNA_MATCH=7, BIAS=3 */
- dib0070_write_reg(st, 0x07, (value << 11) | (7 << 8) | (c << 3) | (3 << 0));
- dib0070_write_reg(st, 0x08, (c << 10) | (3 << 7) | (127));
- dib0070_write_reg(st, 0x0d, 0x0d80);
-
-
- dib0070_write_reg(st, 0x18, 0x07ff);
- dib0070_write_reg(st, 0x17, 0x0033);
-
- return 0;
-}
-
-static int dib0070_wakeup(struct dvb_frontend *fe)
-{
- struct dib0070_state *st = fe->tuner_priv;
- if (st->cfg->sleep)
- st->cfg->sleep(fe, 0);
- return 0;
-}
-
-static int dib0070_sleep(struct dvb_frontend *fe)
-{
- struct dib0070_state *st = fe->tuner_priv;
- if (st->cfg->sleep)
- st->cfg->sleep(fe, 1);
- return 0;
-}
-
-static 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 void dib0070_wbd_calibration(struct dvb_frontend *fe)
-{
- u16 wbd_offs;
- struct dib0070_state *state = fe->tuner_priv;
-
- if (state->cfg->sleep)
- state->cfg->sleep(fe, 0);
-
- dib0070_write_reg(state, 0x0f, 0x6d81);
- dib0070_write_reg(state, 0x20, 0x0040 | 0x0020 | 0x0010 | 0x0008 | 0x0002 | 0x0001);
- msleep(9);
- wbd_offs = dib0070_read_reg(state, 0x19);
- dib0070_write_reg(state, 0x20, 0);
- state->wbd_ff_offset = ((wbd_offs * 8 * 18 / 33 + 1) / 2);
- dprintk( "WBDStart = %d (Vargen) - FF = %hd", (u32) wbd_offs * 1800/1024, state->wbd_ff_offset);
-
- if (state->cfg->sleep)
- state->cfg->sleep(fe, 1);
-
-}
-
-u16 dib0070_wbd_offset(struct dvb_frontend *fe)
-{
- struct dib0070_state *st = fe->tuner_priv;
- return st->wbd_ff_offset;
-}
-
-EXPORT_SYMBOL(dib0070_wbd_offset);
-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);
-}
-
-#define pgm_read_word(w) (*w)
-static int dib0070_reset(struct dib0070_state *state)
-{
- 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
-#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) << 4));
-
- 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(state->fe, 4, 7, 3, 1);
- else
- dib0070_set_ctrl_lo5(state->fe, 4, 4, 2, 0);
-
- dib0070_write_reg(state, 0x01, (54 << 9) | 0xc8);
- return 0;
-}
-
-
-static int dib0070_release(struct dvb_frontend *fe)
-{
- kfree(fe->tuner_priv);
- fe->tuner_priv = NULL;
- return 0;
-}
-
-static 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_digital,
-// .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;
- fe->tuner_priv = state;
-
- if (dib0070_reset(state) != 0)
- goto free_mem;
-
- dib0070_wbd_calibration(fe);
-
- 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 v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 22:03:30 +0000