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path: root/drivers/media/common/tuners/fc0013.c
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Diffstat (limited to 'drivers/media/common/tuners/fc0013.c')
-rw-r--r--drivers/media/common/tuners/fc0013.c634
1 files changed, 0 insertions, 634 deletions
diff --git a/drivers/media/common/tuners/fc0013.c b/drivers/media/common/tuners/fc0013.c
deleted file mode 100644
index bd8f0f1e8f3..00000000000
--- a/drivers/media/common/tuners/fc0013.c
+++ /dev/null
@@ -1,634 +0,0 @@
-/*
- * Fitipower FC0013 tuner driver
- *
- * Copyright (C) 2012 Hans-Frieder Vogt <hfvogt@gmx.net>
- * partially based on driver code from Fitipower
- * Copyright (C) 2010 Fitipower Integrated Technology Inc
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- */
-
-#include "fc0013.h"
-#include "fc0013-priv.h"
-
-static int fc0013_writereg(struct fc0013_priv *priv, u8 reg, u8 val)
-{
- u8 buf[2] = {reg, val};
- struct i2c_msg msg = {
- .addr = priv->addr, .flags = 0, .buf = buf, .len = 2
- };
-
- if (i2c_transfer(priv->i2c, &msg, 1) != 1) {
- err("I2C write reg failed, reg: %02x, val: %02x", reg, val);
- return -EREMOTEIO;
- }
- return 0;
-}
-
-static int fc0013_readreg(struct fc0013_priv *priv, u8 reg, u8 *val)
-{
- struct i2c_msg msg[2] = {
- { .addr = priv->addr, .flags = 0, .buf = &reg, .len = 1 },
- { .addr = priv->addr, .flags = I2C_M_RD, .buf = val, .len = 1 },
- };
-
- if (i2c_transfer(priv->i2c, msg, 2) != 2) {
- err("I2C read reg failed, reg: %02x", reg);
- return -EREMOTEIO;
- }
- return 0;
-}
-
-static int fc0013_release(struct dvb_frontend *fe)
-{
- kfree(fe->tuner_priv);
- fe->tuner_priv = NULL;
- return 0;
-}
-
-static int fc0013_init(struct dvb_frontend *fe)
-{
- struct fc0013_priv *priv = fe->tuner_priv;
- int i, ret = 0;
- unsigned char reg[] = {
- 0x00, /* reg. 0x00: dummy */
- 0x09, /* reg. 0x01 */
- 0x16, /* reg. 0x02 */
- 0x00, /* reg. 0x03 */
- 0x00, /* reg. 0x04 */
- 0x17, /* reg. 0x05 */
- 0x02, /* reg. 0x06 */
- 0x0a, /* reg. 0x07: CHECK */
- 0xff, /* reg. 0x08: AGC Clock divide by 256, AGC gain 1/256,
- Loop Bw 1/8 */
- 0x6f, /* reg. 0x09: enable LoopThrough */
- 0xb8, /* reg. 0x0a: Disable LO Test Buffer */
- 0x82, /* reg. 0x0b: CHECK */
- 0xfc, /* reg. 0x0c: depending on AGC Up-Down mode, may need 0xf8 */
- 0x01, /* reg. 0x0d: AGC Not Forcing & LNA Forcing, may need 0x02 */
- 0x00, /* reg. 0x0e */
- 0x00, /* reg. 0x0f */
- 0x00, /* reg. 0x10 */
- 0x00, /* reg. 0x11 */
- 0x00, /* reg. 0x12 */
- 0x00, /* reg. 0x13 */
- 0x50, /* reg. 0x14: DVB-t High Gain, UHF.
- Middle Gain: 0x48, Low Gain: 0x40 */
- 0x01, /* reg. 0x15 */
- };
-
- switch (priv->xtal_freq) {
- case FC_XTAL_27_MHZ:
- case FC_XTAL_28_8_MHZ:
- reg[0x07] |= 0x20;
- break;
- case FC_XTAL_36_MHZ:
- default:
- break;
- }
-
- if (priv->dual_master)
- reg[0x0c] |= 0x02;
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */
-
- for (i = 1; i < sizeof(reg); i++) {
- ret = fc0013_writereg(priv, i, reg[i]);
- if (ret)
- break;
- }
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
-
- if (ret)
- err("fc0013_writereg failed: %d", ret);
-
- return ret;
-}
-
-static int fc0013_sleep(struct dvb_frontend *fe)
-{
- /* nothing to do here */
- return 0;
-}
-
-int fc0013_rc_cal_add(struct dvb_frontend *fe, int rc_val)
-{
- struct fc0013_priv *priv = fe->tuner_priv;
- int ret;
- u8 rc_cal;
- int val;
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */
-
- /* push rc_cal value, get rc_cal value */
- ret = fc0013_writereg(priv, 0x10, 0x00);
- if (ret)
- goto error_out;
-
- /* get rc_cal value */
- ret = fc0013_readreg(priv, 0x10, &rc_cal);
- if (ret)
- goto error_out;
-
- rc_cal &= 0x0f;
-
- val = (int)rc_cal + rc_val;
-
- /* forcing rc_cal */
- ret = fc0013_writereg(priv, 0x0d, 0x11);
- if (ret)
- goto error_out;
-
- /* modify rc_cal value */
- if (val > 15)
- ret = fc0013_writereg(priv, 0x10, 0x0f);
- else if (val < 0)
- ret = fc0013_writereg(priv, 0x10, 0x00);
- else
- ret = fc0013_writereg(priv, 0x10, (u8)val);
-
-error_out:
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
-
- return ret;
-}
-EXPORT_SYMBOL(fc0013_rc_cal_add);
-
-int fc0013_rc_cal_reset(struct dvb_frontend *fe)
-{
- struct fc0013_priv *priv = fe->tuner_priv;
- int ret;
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */
-
- ret = fc0013_writereg(priv, 0x0d, 0x01);
- if (!ret)
- ret = fc0013_writereg(priv, 0x10, 0x00);
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
-
- return ret;
-}
-EXPORT_SYMBOL(fc0013_rc_cal_reset);
-
-static int fc0013_set_vhf_track(struct fc0013_priv *priv, u32 freq)
-{
- int ret;
- u8 tmp;
-
- ret = fc0013_readreg(priv, 0x1d, &tmp);
- if (ret)
- goto error_out;
- tmp &= 0xe3;
- if (freq <= 177500) { /* VHF Track: 7 */
- ret = fc0013_writereg(priv, 0x1d, tmp | 0x1c);
- } else if (freq <= 184500) { /* VHF Track: 6 */
- ret = fc0013_writereg(priv, 0x1d, tmp | 0x18);
- } else if (freq <= 191500) { /* VHF Track: 5 */
- ret = fc0013_writereg(priv, 0x1d, tmp | 0x14);
- } else if (freq <= 198500) { /* VHF Track: 4 */
- ret = fc0013_writereg(priv, 0x1d, tmp | 0x10);
- } else if (freq <= 205500) { /* VHF Track: 3 */
- ret = fc0013_writereg(priv, 0x1d, tmp | 0x0c);
- } else if (freq <= 219500) { /* VHF Track: 2 */
- ret = fc0013_writereg(priv, 0x1d, tmp | 0x08);
- } else if (freq < 300000) { /* VHF Track: 1 */
- ret = fc0013_writereg(priv, 0x1d, tmp | 0x04);
- } else { /* UHF and GPS */
- ret = fc0013_writereg(priv, 0x1d, tmp | 0x1c);
- }
- if (ret)
- goto error_out;
-error_out:
- return ret;
-}
-
-static int fc0013_set_params(struct dvb_frontend *fe)
-{
- struct fc0013_priv *priv = fe->tuner_priv;
- int i, ret = 0;
- struct dtv_frontend_properties *p = &fe->dtv_property_cache;
- u32 freq = p->frequency / 1000;
- u32 delsys = p->delivery_system;
- unsigned char reg[7], am, pm, multi, tmp;
- unsigned long f_vco;
- unsigned short xtal_freq_khz_2, xin, xdiv;
- int vco_select = false;
-
- if (fe->callback) {
- ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
- FC_FE_CALLBACK_VHF_ENABLE, (freq > 300000 ? 0 : 1));
- if (ret)
- goto exit;
- }
-
- switch (priv->xtal_freq) {
- case FC_XTAL_27_MHZ:
- xtal_freq_khz_2 = 27000 / 2;
- break;
- case FC_XTAL_36_MHZ:
- xtal_freq_khz_2 = 36000 / 2;
- break;
- case FC_XTAL_28_8_MHZ:
- default:
- xtal_freq_khz_2 = 28800 / 2;
- break;
- }
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */
-
- /* set VHF track */
- ret = fc0013_set_vhf_track(priv, freq);
- if (ret)
- goto exit;
-
- if (freq < 300000) {
- /* enable VHF filter */
- ret = fc0013_readreg(priv, 0x07, &tmp);
- if (ret)
- goto exit;
- ret = fc0013_writereg(priv, 0x07, tmp | 0x10);
- if (ret)
- goto exit;
-
- /* disable UHF & disable GPS */
- ret = fc0013_readreg(priv, 0x14, &tmp);
- if (ret)
- goto exit;
- ret = fc0013_writereg(priv, 0x14, tmp & 0x1f);
- if (ret)
- goto exit;
- } else if (freq <= 862000) {
- /* disable VHF filter */
- ret = fc0013_readreg(priv, 0x07, &tmp);
- if (ret)
- goto exit;
- ret = fc0013_writereg(priv, 0x07, tmp & 0xef);
- if (ret)
- goto exit;
-
- /* enable UHF & disable GPS */
- ret = fc0013_readreg(priv, 0x14, &tmp);
- if (ret)
- goto exit;
- ret = fc0013_writereg(priv, 0x14, (tmp & 0x1f) | 0x40);
- if (ret)
- goto exit;
- } else {
- /* disable VHF filter */
- ret = fc0013_readreg(priv, 0x07, &tmp);
- if (ret)
- goto exit;
- ret = fc0013_writereg(priv, 0x07, tmp & 0xef);
- if (ret)
- goto exit;
-
- /* disable UHF & enable GPS */
- ret = fc0013_readreg(priv, 0x14, &tmp);
- if (ret)
- goto exit;
- ret = fc0013_writereg(priv, 0x14, (tmp & 0x1f) | 0x20);
- if (ret)
- goto exit;
- }
-
- /* select frequency divider and the frequency of VCO */
- if (freq < 37084) { /* freq * 96 < 3560000 */
- multi = 96;
- reg[5] = 0x82;
- reg[6] = 0x00;
- } else if (freq < 55625) { /* freq * 64 < 3560000 */
- multi = 64;
- reg[5] = 0x02;
- reg[6] = 0x02;
- } else if (freq < 74167) { /* freq * 48 < 3560000 */
- multi = 48;
- reg[5] = 0x42;
- reg[6] = 0x00;
- } else if (freq < 111250) { /* freq * 32 < 3560000 */
- multi = 32;
- reg[5] = 0x82;
- reg[6] = 0x02;
- } else if (freq < 148334) { /* freq * 24 < 3560000 */
- multi = 24;
- reg[5] = 0x22;
- reg[6] = 0x00;
- } else if (freq < 222500) { /* freq * 16 < 3560000 */
- multi = 16;
- reg[5] = 0x42;
- reg[6] = 0x02;
- } else if (freq < 296667) { /* freq * 12 < 3560000 */
- multi = 12;
- reg[5] = 0x12;
- reg[6] = 0x00;
- } else if (freq < 445000) { /* freq * 8 < 3560000 */
- multi = 8;
- reg[5] = 0x22;
- reg[6] = 0x02;
- } else if (freq < 593334) { /* freq * 6 < 3560000 */
- multi = 6;
- reg[5] = 0x0a;
- reg[6] = 0x00;
- } else if (freq < 950000) { /* freq * 4 < 3800000 */
- multi = 4;
- reg[5] = 0x12;
- reg[6] = 0x02;
- } else {
- multi = 2;
- reg[5] = 0x0a;
- reg[6] = 0x02;
- }
-
- f_vco = freq * multi;
-
- if (f_vco >= 3060000) {
- reg[6] |= 0x08;
- vco_select = true;
- }
-
- if (freq >= 45000) {
- /* From divided value (XDIV) determined the FA and FP value */
- xdiv = (unsigned short)(f_vco / xtal_freq_khz_2);
- if ((f_vco - xdiv * xtal_freq_khz_2) >= (xtal_freq_khz_2 / 2))
- xdiv++;
-
- pm = (unsigned char)(xdiv / 8);
- am = (unsigned char)(xdiv - (8 * pm));
-
- if (am < 2) {
- reg[1] = am + 8;
- reg[2] = pm - 1;
- } else {
- reg[1] = am;
- reg[2] = pm;
- }
- } else {
- /* fix for frequency less than 45 MHz */
- reg[1] = 0x06;
- reg[2] = 0x11;
- }
-
- /* fix clock out */
- reg[6] |= 0x20;
-
- /* From VCO frequency determines the XIN ( fractional part of Delta
- Sigma PLL) and divided value (XDIV) */
- xin = (unsigned short)(f_vco - (f_vco / xtal_freq_khz_2) * xtal_freq_khz_2);
- xin = (xin << 15) / xtal_freq_khz_2;
- if (xin >= 16384)
- xin += 32768;
-
- reg[3] = xin >> 8;
- reg[4] = xin & 0xff;
-
- if (delsys == SYS_DVBT) {
- reg[6] &= 0x3f; /* bits 6 and 7 describe the bandwidth */
- switch (p->bandwidth_hz) {
- case 6000000:
- reg[6] |= 0x80;
- break;
- case 7000000:
- reg[6] |= 0x40;
- break;
- case 8000000:
- default:
- break;
- }
- } else {
- err("%s: modulation type not supported!", __func__);
- return -EINVAL;
- }
-
- /* modified for Realtek demod */
- reg[5] |= 0x07;
-
- for (i = 1; i <= 6; i++) {
- ret = fc0013_writereg(priv, i, reg[i]);
- if (ret)
- goto exit;
- }
-
- ret = fc0013_readreg(priv, 0x11, &tmp);
- if (ret)
- goto exit;
- if (multi == 64)
- ret = fc0013_writereg(priv, 0x11, tmp | 0x04);
- else
- ret = fc0013_writereg(priv, 0x11, tmp & 0xfb);
- if (ret)
- goto exit;
-
- /* VCO Calibration */
- ret = fc0013_writereg(priv, 0x0e, 0x80);
- if (!ret)
- ret = fc0013_writereg(priv, 0x0e, 0x00);
-
- /* VCO Re-Calibration if needed */
- if (!ret)
- ret = fc0013_writereg(priv, 0x0e, 0x00);
-
- if (!ret) {
- msleep(10);
- ret = fc0013_readreg(priv, 0x0e, &tmp);
- }
- if (ret)
- goto exit;
-
- /* vco selection */
- tmp &= 0x3f;
-
- if (vco_select) {
- if (tmp > 0x3c) {
- reg[6] &= ~0x08;
- ret = fc0013_writereg(priv, 0x06, reg[6]);
- if (!ret)
- ret = fc0013_writereg(priv, 0x0e, 0x80);
- if (!ret)
- ret = fc0013_writereg(priv, 0x0e, 0x00);
- }
- } else {
- if (tmp < 0x02) {
- reg[6] |= 0x08;
- ret = fc0013_writereg(priv, 0x06, reg[6]);
- if (!ret)
- ret = fc0013_writereg(priv, 0x0e, 0x80);
- if (!ret)
- ret = fc0013_writereg(priv, 0x0e, 0x00);
- }
- }
-
- priv->frequency = p->frequency;
- priv->bandwidth = p->bandwidth_hz;
-
-exit:
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
- if (ret)
- warn("%s: failed: %d", __func__, ret);
- return ret;
-}
-
-static int fc0013_get_frequency(struct dvb_frontend *fe, u32 *frequency)
-{
- struct fc0013_priv *priv = fe->tuner_priv;
- *frequency = priv->frequency;
- return 0;
-}
-
-static int fc0013_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
-{
- /* always ? */
- *frequency = 0;
- return 0;
-}
-
-static int fc0013_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
-{
- struct fc0013_priv *priv = fe->tuner_priv;
- *bandwidth = priv->bandwidth;
- return 0;
-}
-
-#define INPUT_ADC_LEVEL -8
-
-static int fc0013_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
-{
- struct fc0013_priv *priv = fe->tuner_priv;
- int ret;
- unsigned char tmp;
- int int_temp, lna_gain, int_lna, tot_agc_gain, power;
- const int fc0013_lna_gain_table[] = {
- /* low gain */
- -63, -58, -99, -73,
- -63, -65, -54, -60,
- /* middle gain */
- 71, 70, 68, 67,
- 65, 63, 61, 58,
- /* high gain */
- 197, 191, 188, 186,
- 184, 182, 181, 179,
- };
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 1); /* open I2C-gate */
-
- ret = fc0013_writereg(priv, 0x13, 0x00);
- if (ret)
- goto err;
-
- ret = fc0013_readreg(priv, 0x13, &tmp);
- if (ret)
- goto err;
- int_temp = tmp;
-
- ret = fc0013_readreg(priv, 0x14, &tmp);
- if (ret)
- goto err;
- lna_gain = tmp & 0x1f;
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
-
- if (lna_gain < ARRAY_SIZE(fc0013_lna_gain_table)) {
- int_lna = fc0013_lna_gain_table[lna_gain];
- tot_agc_gain = (abs((int_temp >> 5) - 7) - 2 +
- (int_temp & 0x1f)) * 2;
- power = INPUT_ADC_LEVEL - tot_agc_gain - int_lna / 10;
-
- if (power >= 45)
- *strength = 255; /* 100% */
- else if (power < -95)
- *strength = 0;
- else
- *strength = (power + 95) * 255 / 140;
-
- *strength |= *strength << 8;
- } else {
- ret = -1;
- }
-
- goto exit;
-
-err:
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0); /* close I2C-gate */
-exit:
- if (ret)
- warn("%s: failed: %d", __func__, ret);
- return ret;
-}
-
-static const struct dvb_tuner_ops fc0013_tuner_ops = {
- .info = {
- .name = "Fitipower FC0013",
-
- .frequency_min = 37000000, /* estimate */
- .frequency_max = 1680000000, /* CHECK */
- .frequency_step = 0,
- },
-
- .release = fc0013_release,
-
- .init = fc0013_init,
- .sleep = fc0013_sleep,
-
- .set_params = fc0013_set_params,
-
- .get_frequency = fc0013_get_frequency,
- .get_if_frequency = fc0013_get_if_frequency,
- .get_bandwidth = fc0013_get_bandwidth,
-
- .get_rf_strength = fc0013_get_rf_strength,
-};
-
-struct dvb_frontend *fc0013_attach(struct dvb_frontend *fe,
- struct i2c_adapter *i2c, u8 i2c_address, int dual_master,
- enum fc001x_xtal_freq xtal_freq)
-{
- struct fc0013_priv *priv = NULL;
-
- priv = kzalloc(sizeof(struct fc0013_priv), GFP_KERNEL);
- if (priv == NULL)
- return NULL;
-
- priv->i2c = i2c;
- priv->dual_master = dual_master;
- priv->addr = i2c_address;
- priv->xtal_freq = xtal_freq;
-
- info("Fitipower FC0013 successfully attached.");
-
- fe->tuner_priv = priv;
-
- memcpy(&fe->ops.tuner_ops, &fc0013_tuner_ops,
- sizeof(struct dvb_tuner_ops));
-
- return fe;
-}
-EXPORT_SYMBOL(fc0013_attach);
-
-MODULE_DESCRIPTION("Fitipower FC0013 silicon tuner driver");
-MODULE_AUTHOR("Hans-Frieder Vogt <hfvogt@gmx.net>");
-MODULE_LICENSE("GPL");
-MODULE_VERSION("0.2");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-10-16 12:27:03 +0000