896 строки
25 KiB
C
896 строки
25 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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*
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* (c) 2005 Hartmut Hackmann
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* (c) 2007 Michael Krufky
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <asm/types.h>
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#include <linux/dvb/frontend.h>
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#include <linux/videodev2.h>
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#include "tda827x.h"
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static int debug;
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module_param(debug, int, 0644);
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MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
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#define dprintk(args...) \
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do { \
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if (debug) printk(KERN_DEBUG "tda827x: " args); \
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} while (0)
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struct tda827x_priv {
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int i2c_addr;
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struct i2c_adapter *i2c_adap;
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struct tda827x_config *cfg;
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unsigned int sgIF;
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unsigned char lpsel;
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u32 frequency;
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u32 bandwidth;
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};
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static void tda827x_set_std(struct dvb_frontend *fe,
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struct analog_parameters *params)
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{
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struct tda827x_priv *priv = fe->tuner_priv;
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char *mode;
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priv->lpsel = 0;
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if (params->std & V4L2_STD_MN) {
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priv->sgIF = 92;
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priv->lpsel = 1;
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mode = "MN";
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} else if (params->std & V4L2_STD_B) {
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priv->sgIF = 108;
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mode = "B";
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} else if (params->std & V4L2_STD_GH) {
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priv->sgIF = 124;
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mode = "GH";
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} else if (params->std & V4L2_STD_PAL_I) {
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priv->sgIF = 124;
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mode = "I";
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} else if (params->std & V4L2_STD_DK) {
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priv->sgIF = 124;
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mode = "DK";
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} else if (params->std & V4L2_STD_SECAM_L) {
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priv->sgIF = 124;
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mode = "L";
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} else if (params->std & V4L2_STD_SECAM_LC) {
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priv->sgIF = 20;
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mode = "LC";
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} else {
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priv->sgIF = 124;
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mode = "xx";
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}
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if (params->mode == V4L2_TUNER_RADIO) {
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priv->sgIF = 88; /* if frequency is 5.5 MHz */
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dprintk("setting tda827x to radio FM\n");
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} else
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dprintk("setting tda827x to system %s\n", mode);
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}
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/* ------------------------------------------------------------------ */
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struct tda827x_data {
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u32 lomax;
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u8 spd;
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u8 bs;
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u8 bp;
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u8 cp;
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u8 gc3;
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u8 div1p5;
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};
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static const struct tda827x_data tda827x_table[] = {
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{ .lomax = 62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
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{ .lomax = 66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},
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{ .lomax = 76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
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{ .lomax = 84000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},
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{ .lomax = 93000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
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{ .lomax = 98000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},
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{ .lomax = 109000000, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
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{ .lomax = 123000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
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{ .lomax = 133000000, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},
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{ .lomax = 151000000, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
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{ .lomax = 154000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},
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{ .lomax = 181000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0},
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{ .lomax = 185000000, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
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{ .lomax = 217000000, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
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{ .lomax = 244000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
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{ .lomax = 265000000, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},
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{ .lomax = 302000000, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
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{ .lomax = 324000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},
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{ .lomax = 370000000, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
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{ .lomax = 454000000, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
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{ .lomax = 493000000, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
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{ .lomax = 530000000, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},
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{ .lomax = 554000000, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},
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{ .lomax = 604000000, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
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{ .lomax = 696000000, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
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{ .lomax = 740000000, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
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{ .lomax = 820000000, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},
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{ .lomax = 865000000, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},
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{ .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0}
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};
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static int tuner_transfer(struct dvb_frontend *fe,
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struct i2c_msg *msg,
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const int size)
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{
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int rc;
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struct tda827x_priv *priv = fe->tuner_priv;
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 1);
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rc = i2c_transfer(priv->i2c_adap, msg, size);
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if (fe->ops.i2c_gate_ctrl)
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fe->ops.i2c_gate_ctrl(fe, 0);
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if (rc >= 0 && rc != size)
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return -EIO;
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return rc;
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}
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static int tda827xo_set_params(struct dvb_frontend *fe)
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{
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struct dtv_frontend_properties *c = &fe->dtv_property_cache;
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struct tda827x_priv *priv = fe->tuner_priv;
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u8 buf[14];
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int rc;
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struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
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.buf = buf, .len = sizeof(buf) };
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int i, tuner_freq, if_freq;
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u32 N;
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dprintk("%s:\n", __func__);
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if (c->bandwidth_hz == 0) {
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if_freq = 5000000;
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} else if (c->bandwidth_hz <= 6000000) {
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if_freq = 4000000;
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} else if (c->bandwidth_hz <= 7000000) {
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if_freq = 4500000;
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} else { /* 8 MHz */
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if_freq = 5000000;
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}
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tuner_freq = c->frequency;
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i = 0;
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while (tda827x_table[i].lomax < tuner_freq) {
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if (tda827x_table[i + 1].lomax == 0)
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break;
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i++;
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}
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tuner_freq += if_freq;
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N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2);
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buf[0] = 0;
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buf[1] = (N>>8) | 0x40;
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buf[2] = N & 0xff;
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buf[3] = 0;
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buf[4] = 0x52;
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buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) +
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(tda827x_table[i].bs << 3) +
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tda827x_table[i].bp;
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buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f;
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buf[7] = 0xbf;
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buf[8] = 0x2a;
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buf[9] = 0x05;
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buf[10] = 0xff;
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buf[11] = 0x00;
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buf[12] = 0x00;
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buf[13] = 0x40;
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msg.len = 14;
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rc = tuner_transfer(fe, &msg, 1);
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if (rc < 0)
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goto err;
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msleep(500);
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/* correct CP value */
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buf[0] = 0x30;
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buf[1] = 0x50 + tda827x_table[i].cp;
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msg.len = 2;
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rc = tuner_transfer(fe, &msg, 1);
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if (rc < 0)
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goto err;
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priv->frequency = c->frequency;
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priv->bandwidth = c->bandwidth_hz;
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return 0;
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err:
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printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",
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__func__, priv->i2c_addr << 1);
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return rc;
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}
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static int tda827xo_sleep(struct dvb_frontend *fe)
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{
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struct tda827x_priv *priv = fe->tuner_priv;
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static u8 buf[] = { 0x30, 0xd0 };
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struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
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.buf = buf, .len = sizeof(buf) };
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dprintk("%s:\n", __func__);
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tuner_transfer(fe, &msg, 1);
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if (priv->cfg && priv->cfg->sleep)
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priv->cfg->sleep(fe);
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return 0;
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}
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/* ------------------------------------------------------------------ */
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static int tda827xo_set_analog_params(struct dvb_frontend *fe,
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struct analog_parameters *params)
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{
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unsigned char tuner_reg[8];
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unsigned char reg2[2];
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u32 N;
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int i;
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struct tda827x_priv *priv = fe->tuner_priv;
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struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 };
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unsigned int freq = params->frequency;
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tda827x_set_std(fe, params);
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if (params->mode == V4L2_TUNER_RADIO)
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freq = freq / 1000;
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N = freq + priv->sgIF;
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i = 0;
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while (tda827x_table[i].lomax < N * 62500) {
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if (tda827x_table[i + 1].lomax == 0)
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break;
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i++;
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}
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N = N << tda827x_table[i].spd;
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tuner_reg[0] = 0;
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tuner_reg[1] = (unsigned char)(N>>8);
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tuner_reg[2] = (unsigned char) N;
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tuner_reg[3] = 0x40;
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tuner_reg[4] = 0x52 + (priv->lpsel << 5);
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tuner_reg[5] = (tda827x_table[i].spd << 6) +
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(tda827x_table[i].div1p5 << 5) +
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(tda827x_table[i].bs << 3) + tda827x_table[i].bp;
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tuner_reg[6] = 0x8f + (tda827x_table[i].gc3 << 4);
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tuner_reg[7] = 0x8f;
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msg.buf = tuner_reg;
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msg.len = 8;
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tuner_transfer(fe, &msg, 1);
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msg.buf = reg2;
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msg.len = 2;
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reg2[0] = 0x80;
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reg2[1] = 0;
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tuner_transfer(fe, &msg, 1);
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reg2[0] = 0x60;
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reg2[1] = 0xbf;
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tuner_transfer(fe, &msg, 1);
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reg2[0] = 0x30;
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reg2[1] = tuner_reg[4] + 0x80;
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tuner_transfer(fe, &msg, 1);
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msleep(1);
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reg2[0] = 0x30;
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reg2[1] = tuner_reg[4] + 4;
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tuner_transfer(fe, &msg, 1);
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msleep(1);
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reg2[0] = 0x30;
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reg2[1] = tuner_reg[4];
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tuner_transfer(fe, &msg, 1);
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msleep(550);
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reg2[0] = 0x30;
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reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp;
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tuner_transfer(fe, &msg, 1);
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reg2[0] = 0x60;
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reg2[1] = 0x3f;
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tuner_transfer(fe, &msg, 1);
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reg2[0] = 0x80;
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reg2[1] = 0x08; /* Vsync en */
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tuner_transfer(fe, &msg, 1);
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priv->frequency = params->frequency;
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return 0;
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}
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static void tda827xo_agcf(struct dvb_frontend *fe)
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{
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struct tda827x_priv *priv = fe->tuner_priv;
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unsigned char data[] = { 0x80, 0x0c };
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struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
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.buf = data, .len = 2};
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tuner_transfer(fe, &msg, 1);
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}
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/* ------------------------------------------------------------------ */
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struct tda827xa_data {
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u32 lomax;
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u8 svco;
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u8 spd;
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u8 scr;
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u8 sbs;
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u8 gc3;
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};
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static struct tda827xa_data tda827xa_dvbt[] = {
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{ .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1},
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{ .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
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{ .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
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{ .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},
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{ .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
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{ .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
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{ .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
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{ .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
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{ .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
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{ .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
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{ .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
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{ .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
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{ .lomax = 290000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
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{ .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
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{ .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
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{ .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},
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{ .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
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{ .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
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{ .lomax = 550000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
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{ .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
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{ .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
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{ .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
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{ .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
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{ .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
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{ .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
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{ .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
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{ .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
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};
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static struct tda827xa_data tda827xa_dvbc[] = {
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{ .lomax = 50125000, .svco = 2, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},
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{ .lomax = 58500000, .svco = 3, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},
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{ .lomax = 69250000, .svco = 0, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
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{ .lomax = 83625000, .svco = 1, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
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{ .lomax = 97500000, .svco = 2, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},
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{ .lomax = 100250000, .svco = 2, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},
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{ .lomax = 117000000, .svco = 3, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},
|
|
{ .lomax = 138500000, .svco = 0, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
|
|
{ .lomax = 167250000, .svco = 1, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
|
|
{ .lomax = 187000000, .svco = 2, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},
|
|
{ .lomax = 200500000, .svco = 2, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 1},
|
|
{ .lomax = 234000000, .svco = 3, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 3},
|
|
{ .lomax = 277000000, .svco = 0, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 3},
|
|
{ .lomax = 325000000, .svco = 1, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 1},
|
|
{ .lomax = 334500000, .svco = 1, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},
|
|
{ .lomax = 401000000, .svco = 2, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},
|
|
{ .lomax = 468000000, .svco = 3, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 1},
|
|
{ .lomax = 535000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
|
|
{ .lomax = 554000000, .svco = 0, .spd = 0, .scr = 2, .sbs = 3, .gc3 = 1},
|
|
{ .lomax = 638000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
|
|
{ .lomax = 669000000, .svco = 1, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
|
|
{ .lomax = 720000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
|
|
{ .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
|
|
{ .lomax = 835000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
|
|
{ .lomax = 885000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
|
|
{ .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
|
|
{ .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
|
|
};
|
|
|
|
static struct tda827xa_data tda827xa_analog[] = {
|
|
{ .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3},
|
|
{ .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
|
|
{ .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
|
|
{ .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},
|
|
{ .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},
|
|
{ .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
|
|
{ .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
|
|
{ .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
|
|
{ .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},
|
|
{ .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},
|
|
{ .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3},
|
|
{ .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3},
|
|
{ .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},
|
|
{ .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
|
|
{ .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},
|
|
{ .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
|
|
{ .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},
|
|
{ .lomax = 554000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},
|
|
{ .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
|
|
{ .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
|
|
{ .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
|
|
{ .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
|
|
{ .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},
|
|
{ .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},
|
|
{ .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},
|
|
{ .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}
|
|
};
|
|
|
|
static int tda827xa_sleep(struct dvb_frontend *fe)
|
|
{
|
|
struct tda827x_priv *priv = fe->tuner_priv;
|
|
static u8 buf[] = { 0x30, 0x90 };
|
|
struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
|
|
.buf = buf, .len = sizeof(buf) };
|
|
|
|
dprintk("%s:\n", __func__);
|
|
|
|
tuner_transfer(fe, &msg, 1);
|
|
|
|
if (priv->cfg && priv->cfg->sleep)
|
|
priv->cfg->sleep(fe);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void tda827xa_lna_gain(struct dvb_frontend *fe, int high,
|
|
struct analog_parameters *params)
|
|
{
|
|
struct tda827x_priv *priv = fe->tuner_priv;
|
|
unsigned char buf[] = {0x22, 0x01};
|
|
int arg;
|
|
int gp_func;
|
|
struct i2c_msg msg = { .flags = 0, .buf = buf, .len = sizeof(buf) };
|
|
|
|
if (NULL == priv->cfg) {
|
|
dprintk("tda827x_config not defined, cannot set LNA gain!\n");
|
|
return;
|
|
}
|
|
msg.addr = priv->cfg->switch_addr;
|
|
if (priv->cfg->config) {
|
|
if (high)
|
|
dprintk("setting LNA to high gain\n");
|
|
else
|
|
dprintk("setting LNA to low gain\n");
|
|
}
|
|
switch (priv->cfg->config) {
|
|
case TDA8290_LNA_OFF: /* no LNA */
|
|
break;
|
|
case TDA8290_LNA_GP0_HIGH_ON: /* switch is GPIO 0 of tda8290 */
|
|
case TDA8290_LNA_GP0_HIGH_OFF:
|
|
if (params == NULL) {
|
|
gp_func = 0;
|
|
arg = 0;
|
|
} else {
|
|
/* turn Vsync on */
|
|
gp_func = 1;
|
|
if (params->std & V4L2_STD_MN)
|
|
arg = 1;
|
|
else
|
|
arg = 0;
|
|
}
|
|
if (fe->callback)
|
|
fe->callback(priv->i2c_adap->algo_data,
|
|
DVB_FRONTEND_COMPONENT_TUNER,
|
|
gp_func, arg);
|
|
buf[1] = high ? 0 : 1;
|
|
if (priv->cfg->config == TDA8290_LNA_GP0_HIGH_OFF)
|
|
buf[1] = high ? 1 : 0;
|
|
tuner_transfer(fe, &msg, 1);
|
|
break;
|
|
case TDA8290_LNA_ON_BRIDGE: /* switch with GPIO of saa713x */
|
|
if (fe->callback)
|
|
fe->callback(priv->i2c_adap->algo_data,
|
|
DVB_FRONTEND_COMPONENT_TUNER, 0, high);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int tda827xa_set_params(struct dvb_frontend *fe)
|
|
{
|
|
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
|
|
struct tda827x_priv *priv = fe->tuner_priv;
|
|
struct tda827xa_data *frequency_map = tda827xa_dvbt;
|
|
u8 buf[11];
|
|
|
|
struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
|
|
.buf = buf, .len = sizeof(buf) };
|
|
|
|
int i, tuner_freq, if_freq, rc;
|
|
u32 N;
|
|
|
|
dprintk("%s:\n", __func__);
|
|
|
|
tda827xa_lna_gain(fe, 1, NULL);
|
|
msleep(20);
|
|
|
|
if (c->bandwidth_hz == 0) {
|
|
if_freq = 5000000;
|
|
} else if (c->bandwidth_hz <= 6000000) {
|
|
if_freq = 4000000;
|
|
} else if (c->bandwidth_hz <= 7000000) {
|
|
if_freq = 4500000;
|
|
} else { /* 8 MHz */
|
|
if_freq = 5000000;
|
|
}
|
|
tuner_freq = c->frequency;
|
|
|
|
switch (c->delivery_system) {
|
|
case SYS_DVBC_ANNEX_A:
|
|
case SYS_DVBC_ANNEX_C:
|
|
dprintk("%s select tda827xa_dvbc\n", __func__);
|
|
frequency_map = tda827xa_dvbc;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
i = 0;
|
|
while (frequency_map[i].lomax < tuner_freq) {
|
|
if (frequency_map[i + 1].lomax == 0)
|
|
break;
|
|
i++;
|
|
}
|
|
|
|
tuner_freq += if_freq;
|
|
|
|
N = ((tuner_freq + 31250) / 62500) << frequency_map[i].spd;
|
|
buf[0] = 0; // subaddress
|
|
buf[1] = N >> 8;
|
|
buf[2] = N & 0xff;
|
|
buf[3] = 0;
|
|
buf[4] = 0x16;
|
|
buf[5] = (frequency_map[i].spd << 5) + (frequency_map[i].svco << 3) +
|
|
frequency_map[i].sbs;
|
|
buf[6] = 0x4b + (frequency_map[i].gc3 << 4);
|
|
buf[7] = 0x1c;
|
|
buf[8] = 0x06;
|
|
buf[9] = 0x24;
|
|
buf[10] = 0x00;
|
|
msg.len = 11;
|
|
rc = tuner_transfer(fe, &msg, 1);
|
|
if (rc < 0)
|
|
goto err;
|
|
|
|
buf[0] = 0x90;
|
|
buf[1] = 0xff;
|
|
buf[2] = 0x60;
|
|
buf[3] = 0x00;
|
|
buf[4] = 0x59; // lpsel, for 6MHz + 2
|
|
msg.len = 5;
|
|
rc = tuner_transfer(fe, &msg, 1);
|
|
if (rc < 0)
|
|
goto err;
|
|
|
|
buf[0] = 0xa0;
|
|
buf[1] = 0x40;
|
|
msg.len = 2;
|
|
rc = tuner_transfer(fe, &msg, 1);
|
|
if (rc < 0)
|
|
goto err;
|
|
|
|
msleep(11);
|
|
msg.flags = I2C_M_RD;
|
|
rc = tuner_transfer(fe, &msg, 1);
|
|
if (rc < 0)
|
|
goto err;
|
|
msg.flags = 0;
|
|
|
|
buf[1] >>= 4;
|
|
dprintk("tda8275a AGC2 gain is: %d\n", buf[1]);
|
|
if ((buf[1]) < 2) {
|
|
tda827xa_lna_gain(fe, 0, NULL);
|
|
buf[0] = 0x60;
|
|
buf[1] = 0x0c;
|
|
rc = tuner_transfer(fe, &msg, 1);
|
|
if (rc < 0)
|
|
goto err;
|
|
}
|
|
|
|
buf[0] = 0xc0;
|
|
buf[1] = 0x99; // lpsel, for 6MHz + 2
|
|
rc = tuner_transfer(fe, &msg, 1);
|
|
if (rc < 0)
|
|
goto err;
|
|
|
|
buf[0] = 0x60;
|
|
buf[1] = 0x3c;
|
|
rc = tuner_transfer(fe, &msg, 1);
|
|
if (rc < 0)
|
|
goto err;
|
|
|
|
/* correct CP value */
|
|
buf[0] = 0x30;
|
|
buf[1] = 0x10 + frequency_map[i].scr;
|
|
rc = tuner_transfer(fe, &msg, 1);
|
|
if (rc < 0)
|
|
goto err;
|
|
|
|
msleep(163);
|
|
buf[0] = 0xc0;
|
|
buf[1] = 0x39; // lpsel, for 6MHz + 2
|
|
rc = tuner_transfer(fe, &msg, 1);
|
|
if (rc < 0)
|
|
goto err;
|
|
|
|
msleep(3);
|
|
/* freeze AGC1 */
|
|
buf[0] = 0x50;
|
|
buf[1] = 0x4f + (frequency_map[i].gc3 << 4);
|
|
rc = tuner_transfer(fe, &msg, 1);
|
|
if (rc < 0)
|
|
goto err;
|
|
|
|
priv->frequency = c->frequency;
|
|
priv->bandwidth = c->bandwidth_hz;
|
|
|
|
return 0;
|
|
|
|
err:
|
|
printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",
|
|
__func__, priv->i2c_addr << 1);
|
|
return rc;
|
|
}
|
|
|
|
|
|
static int tda827xa_set_analog_params(struct dvb_frontend *fe,
|
|
struct analog_parameters *params)
|
|
{
|
|
unsigned char tuner_reg[11];
|
|
u32 N;
|
|
int i;
|
|
struct tda827x_priv *priv = fe->tuner_priv;
|
|
struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,
|
|
.buf = tuner_reg, .len = sizeof(tuner_reg) };
|
|
unsigned int freq = params->frequency;
|
|
|
|
tda827x_set_std(fe, params);
|
|
|
|
tda827xa_lna_gain(fe, 1, params);
|
|
msleep(10);
|
|
|
|
if (params->mode == V4L2_TUNER_RADIO)
|
|
freq = freq / 1000;
|
|
|
|
N = freq + priv->sgIF;
|
|
|
|
i = 0;
|
|
while (tda827xa_analog[i].lomax < N * 62500) {
|
|
if (tda827xa_analog[i + 1].lomax == 0)
|
|
break;
|
|
i++;
|
|
}
|
|
|
|
N = N << tda827xa_analog[i].spd;
|
|
|
|
tuner_reg[0] = 0;
|
|
tuner_reg[1] = (unsigned char)(N>>8);
|
|
tuner_reg[2] = (unsigned char) N;
|
|
tuner_reg[3] = 0;
|
|
tuner_reg[4] = 0x16;
|
|
tuner_reg[5] = (tda827xa_analog[i].spd << 5) +
|
|
(tda827xa_analog[i].svco << 3) +
|
|
tda827xa_analog[i].sbs;
|
|
tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4);
|
|
tuner_reg[7] = 0x1c;
|
|
tuner_reg[8] = 4;
|
|
tuner_reg[9] = 0x20;
|
|
tuner_reg[10] = 0x00;
|
|
msg.len = 11;
|
|
tuner_transfer(fe, &msg, 1);
|
|
|
|
tuner_reg[0] = 0x90;
|
|
tuner_reg[1] = 0xff;
|
|
tuner_reg[2] = 0xe0;
|
|
tuner_reg[3] = 0;
|
|
tuner_reg[4] = 0x99 + (priv->lpsel << 1);
|
|
msg.len = 5;
|
|
tuner_transfer(fe, &msg, 1);
|
|
|
|
tuner_reg[0] = 0xa0;
|
|
tuner_reg[1] = 0xc0;
|
|
msg.len = 2;
|
|
tuner_transfer(fe, &msg, 1);
|
|
|
|
tuner_reg[0] = 0x30;
|
|
tuner_reg[1] = 0x10 + tda827xa_analog[i].scr;
|
|
tuner_transfer(fe, &msg, 1);
|
|
|
|
msg.flags = I2C_M_RD;
|
|
tuner_transfer(fe, &msg, 1);
|
|
msg.flags = 0;
|
|
tuner_reg[1] >>= 4;
|
|
dprintk("AGC2 gain is: %d\n", tuner_reg[1]);
|
|
if (tuner_reg[1] < 1)
|
|
tda827xa_lna_gain(fe, 0, params);
|
|
|
|
msleep(100);
|
|
tuner_reg[0] = 0x60;
|
|
tuner_reg[1] = 0x3c;
|
|
tuner_transfer(fe, &msg, 1);
|
|
|
|
msleep(163);
|
|
tuner_reg[0] = 0x50;
|
|
tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);
|
|
tuner_transfer(fe, &msg, 1);
|
|
|
|
tuner_reg[0] = 0x80;
|
|
tuner_reg[1] = 0x28;
|
|
tuner_transfer(fe, &msg, 1);
|
|
|
|
tuner_reg[0] = 0xb0;
|
|
tuner_reg[1] = 0x01;
|
|
tuner_transfer(fe, &msg, 1);
|
|
|
|
tuner_reg[0] = 0xc0;
|
|
tuner_reg[1] = 0x19 + (priv->lpsel << 1);
|
|
tuner_transfer(fe, &msg, 1);
|
|
|
|
priv->frequency = params->frequency;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void tda827xa_agcf(struct dvb_frontend *fe)
|
|
{
|
|
struct tda827x_priv *priv = fe->tuner_priv;
|
|
unsigned char data[] = {0x80, 0x2c};
|
|
struct i2c_msg msg = {.addr = priv->i2c_addr, .flags = 0,
|
|
.buf = data, .len = 2};
|
|
tuner_transfer(fe, &msg, 1);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------ */
|
|
|
|
static void tda827x_release(struct dvb_frontend *fe)
|
|
{
|
|
kfree(fe->tuner_priv);
|
|
fe->tuner_priv = NULL;
|
|
}
|
|
|
|
static int tda827x_get_frequency(struct dvb_frontend *fe, u32 *frequency)
|
|
{
|
|
struct tda827x_priv *priv = fe->tuner_priv;
|
|
*frequency = priv->frequency;
|
|
return 0;
|
|
}
|
|
|
|
static int tda827x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
|
|
{
|
|
struct tda827x_priv *priv = fe->tuner_priv;
|
|
*bandwidth = priv->bandwidth;
|
|
return 0;
|
|
}
|
|
|
|
static int tda827x_init(struct dvb_frontend *fe)
|
|
{
|
|
struct tda827x_priv *priv = fe->tuner_priv;
|
|
dprintk("%s:\n", __func__);
|
|
if (priv->cfg && priv->cfg->init)
|
|
priv->cfg->init(fe);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tda827x_probe_version(struct dvb_frontend *fe);
|
|
|
|
static int tda827x_initial_init(struct dvb_frontend *fe)
|
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{
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int ret;
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ret = tda827x_probe_version(fe);
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if (ret)
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return ret;
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return fe->ops.tuner_ops.init(fe);
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}
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static int tda827x_initial_sleep(struct dvb_frontend *fe)
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{
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int ret;
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ret = tda827x_probe_version(fe);
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if (ret)
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return ret;
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return fe->ops.tuner_ops.sleep(fe);
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}
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static const struct dvb_tuner_ops tda827xo_tuner_ops = {
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.info = {
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.name = "Philips TDA827X",
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.frequency_min_hz = 55 * MHz,
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.frequency_max_hz = 860 * MHz,
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.frequency_step_hz = 250 * kHz
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},
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.release = tda827x_release,
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.init = tda827x_initial_init,
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.sleep = tda827x_initial_sleep,
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.set_params = tda827xo_set_params,
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.set_analog_params = tda827xo_set_analog_params,
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.get_frequency = tda827x_get_frequency,
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.get_bandwidth = tda827x_get_bandwidth,
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};
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static const struct dvb_tuner_ops tda827xa_tuner_ops = {
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.info = {
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.name = "Philips TDA827XA",
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.frequency_min_hz = 44 * MHz,
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.frequency_max_hz = 906 * MHz,
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.frequency_step_hz = 62500
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},
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.release = tda827x_release,
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.init = tda827x_init,
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.sleep = tda827xa_sleep,
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.set_params = tda827xa_set_params,
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.set_analog_params = tda827xa_set_analog_params,
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.get_frequency = tda827x_get_frequency,
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.get_bandwidth = tda827x_get_bandwidth,
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};
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static int tda827x_probe_version(struct dvb_frontend *fe)
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{
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u8 data;
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int rc;
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struct tda827x_priv *priv = fe->tuner_priv;
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struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD,
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.buf = &data, .len = 1 };
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rc = tuner_transfer(fe, &msg, 1);
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if (rc < 0) {
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printk("%s: could not read from tuner at addr: 0x%02x\n",
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__func__, msg.addr << 1);
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return rc;
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}
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if ((data & 0x3c) == 0) {
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dprintk("tda827x tuner found\n");
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fe->ops.tuner_ops.init = tda827x_init;
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fe->ops.tuner_ops.sleep = tda827xo_sleep;
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if (priv->cfg)
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priv->cfg->agcf = tda827xo_agcf;
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} else {
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dprintk("tda827xa tuner found\n");
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memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops));
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if (priv->cfg)
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priv->cfg->agcf = tda827xa_agcf;
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}
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return 0;
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}
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struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr,
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struct i2c_adapter *i2c,
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struct tda827x_config *cfg)
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{
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struct tda827x_priv *priv = NULL;
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dprintk("%s:\n", __func__);
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priv = kzalloc(sizeof(struct tda827x_priv), GFP_KERNEL);
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if (priv == NULL)
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return NULL;
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priv->i2c_addr = addr;
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priv->i2c_adap = i2c;
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priv->cfg = cfg;
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memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops));
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fe->tuner_priv = priv;
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dprintk("type set to %s\n", fe->ops.tuner_ops.info.name);
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return fe;
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}
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EXPORT_SYMBOL_GPL(tda827x_attach);
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MODULE_DESCRIPTION("DVB TDA827x driver");
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MODULE_AUTHOR("Hartmut Hackmann <hartmut.hackmann@t-online.de>");
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MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
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MODULE_LICENSE("GPL");
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