/* * * (c) 2005 Hartmut Hackmann * (c) 2007 Michael Krufky * * 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 <linux/module.h> #include <linux/slab.h> #include <asm/types.h> #include <linux/dvb/frontend.h> #include <linux/videodev2.h> #include "tda827x.h" static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off)."); #define dprintk(args...) \ do { \ if (debug) printk(KERN_DEBUG "tda827x: " args); \ } while (0) struct tda827x_priv { int i2c_addr; struct i2c_adapter *i2c_adap; struct tda827x_config *cfg; unsigned int sgIF; unsigned char lpsel; u32 frequency; u32 bandwidth; }; static void tda827x_set_std(struct dvb_frontend *fe, struct analog_parameters *params) { struct tda827x_priv *priv = fe->tuner_priv; char *mode; priv->lpsel = 0; if (params->std & V4L2_STD_MN) { priv->sgIF = 92; priv->lpsel = 1; mode = "MN"; } else if (params->std & V4L2_STD_B) { priv->sgIF = 108; mode = "B"; } else if (params->std & V4L2_STD_GH) { priv->sgIF = 124; mode = "GH"; } else if (params->std & V4L2_STD_PAL_I) { priv->sgIF = 124; mode = "I"; } else if (params->std & V4L2_STD_DK) { priv->sgIF = 124; mode = "DK"; } else if (params->std & V4L2_STD_SECAM_L) { priv->sgIF = 124; mode = "L"; } else if (params->std & V4L2_STD_SECAM_LC) { priv->sgIF = 20; mode = "LC"; } else { priv->sgIF = 124; mode = "xx"; } if (params->mode == V4L2_TUNER_RADIO) { priv->sgIF = 88; /* if frequency is 5.5 MHz */ dprintk("setting tda827x to radio FM\n"); } else dprintk("setting tda827x to system %s\n", mode); } /* ------------------------------------------------------------------ */ struct tda827x_data { u32 lomax; u8 spd; u8 bs; u8 bp; u8 cp; u8 gc3; u8 div1p5; }; static const struct tda827x_data tda827x_table[] = { { .lomax = 62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, { .lomax = 66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, { .lomax = 76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, { .lomax = 84000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, { .lomax = 93000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, { .lomax = 98000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, { .lomax = 109000000, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, { .lomax = 123000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, { .lomax = 133000000, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, { .lomax = 151000000, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, { .lomax = 154000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, { .lomax = 181000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0}, { .lomax = 185000000, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, { .lomax = 217000000, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, { .lomax = 244000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, { .lomax = 265000000, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, { .lomax = 302000000, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, { .lomax = 324000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, { .lomax = 370000000, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, { .lomax = 454000000, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, { .lomax = 493000000, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, { .lomax = 530000000, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, { .lomax = 554000000, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, { .lomax = 604000000, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, { .lomax = 696000000, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, { .lomax = 740000000, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, { .lomax = 820000000, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, { .lomax = 865000000, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, { .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0} }; static int tuner_transfer(struct dvb_frontend *fe, struct i2c_msg *msg, const int size) { int rc; struct tda827x_priv *priv = fe->tuner_priv; if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 1); rc = i2c_transfer(priv->i2c_adap, msg, size); if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0); if (rc >= 0 && rc != size) return -EIO; return rc; } static int tda827xo_set_params(struct dvb_frontend *fe) { struct dtv_frontend_properties *c = &fe->dtv_property_cache; struct tda827x_priv *priv = fe->tuner_priv; u8 buf[14]; int rc; struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, .buf = buf, .len = sizeof(buf) }; int i, tuner_freq, if_freq; u32 N; dprintk("%s:\n", __func__); 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; i = 0; while (tda827x_table[i].lomax < tuner_freq) { if (tda827x_table[i + 1].lomax == 0) break; i++; } tuner_freq += if_freq; N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2); buf[0] = 0; buf[1] = (N>>8) | 0x40; buf[2] = N & 0xff; buf[3] = 0; buf[4] = 0x52; buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) + (tda827x_table[i].bs << 3) + tda827x_table[i].bp; buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f; buf[7] = 0xbf; buf[8] = 0x2a; buf[9] = 0x05; buf[10] = 0xff; buf[11] = 0x00; buf[12] = 0x00; buf[13] = 0x40; msg.len = 14; rc = tuner_transfer(fe, &msg, 1); if (rc < 0) goto err; msleep(500); /* correct CP value */ buf[0] = 0x30; buf[1] = 0x50 + tda827x_table[i].cp; msg.len = 2; 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 tda827xo_sleep(struct dvb_frontend *fe) { struct tda827x_priv *priv = fe->tuner_priv; static u8 buf[] = { 0x30, 0xd0 }; 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 int tda827xo_set_analog_params(struct dvb_frontend *fe, struct analog_parameters *params) { unsigned char tuner_reg[8]; unsigned char reg2[2]; u32 N; int i; struct tda827x_priv *priv = fe->tuner_priv; struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 }; unsigned int freq = params->frequency; tda827x_set_std(fe, params); if (params->mode == V4L2_TUNER_RADIO) freq = freq / 1000; N = freq + priv->sgIF; i = 0; while (tda827x_table[i].lomax < N * 62500) { if (tda827x_table[i + 1].lomax == 0) break; i++; } N = N << tda827x_table[i].spd; tuner_reg[0] = 0; tuner_reg[1] = (unsigned char)(N>>8); tuner_reg[2] = (unsigned char) N; tuner_reg[3] = 0x40; tuner_reg[4] = 0x52 + (priv->lpsel << 5); tuner_reg[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) + (tda827x_table[i].bs << 3) + tda827x_table[i].bp; tuner_reg[6] = 0x8f + (tda827x_table[i].gc3 << 4); tuner_reg[7] = 0x8f; msg.buf = tuner_reg; msg.len = 8; tuner_transfer(fe, &msg, 1); msg.buf = reg2; msg.len = 2; reg2[0] = 0x80; reg2[1] = 0; tuner_transfer(fe, &msg, 1); reg2[0] = 0x60; reg2[1] = 0xbf; tuner_transfer(fe, &msg, 1); reg2[0] = 0x30; reg2[1] = tuner_reg[4] + 0x80; tuner_transfer(fe, &msg, 1); msleep(1); reg2[0] = 0x30; reg2[1] = tuner_reg[4] + 4; tuner_transfer(fe, &msg, 1); msleep(1); reg2[0] = 0x30; reg2[1] = tuner_reg[4]; tuner_transfer(fe, &msg, 1); msleep(550); reg2[0] = 0x30; reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp; tuner_transfer(fe, &msg, 1); reg2[0] = 0x60; reg2[1] = 0x3f; tuner_transfer(fe, &msg, 1); reg2[0] = 0x80; reg2[1] = 0x08; /* Vsync en */ tuner_transfer(fe, &msg, 1); priv->frequency = params->frequency; return 0; } static void tda827xo_agcf(struct dvb_frontend *fe) { struct tda827x_priv *priv = fe->tuner_priv; unsigned char data[] = { 0x80, 0x0c }; struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0, .buf = data, .len = 2}; tuner_transfer(fe, &msg, 1); } /* ------------------------------------------------------------------ */ struct tda827xa_data { u32 lomax; u8 svco; u8 spd; u8 scr; u8 sbs; u8 gc3; }; static struct tda827xa_data tda827xa_dvbt[] = { { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1}, { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1}, { .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 = 1}, { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1}, { .lomax = 290000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1}, { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1}, { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1}, { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1}, { .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 = 550000000, .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 struct tda827xa_data tda827xa_dvbc[] = { { .lomax = 50125000, .svco = 2, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3}, { .lomax = 58500000, .svco = 3, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3}, { .lomax = 69250000, .svco = 0, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3}, { .lomax = 83625000, .svco = 1, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3}, { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3}, { .lomax = 100250000, .svco = 2, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1}, { .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 0: /* no LNA */ break; case 1: /* switch is GPIO 0 of tda8290 */ case 2: 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 == 2) buf[1] = high ? 1 : 0; tuner_transfer(fe, &msg, 1); break; case 3: /* 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 int tda827x_release(struct dvb_frontend *fe) { kfree(fe->tuner_priv); fe->tuner_priv = NULL; return 0; } 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) { int ret; ret = tda827x_probe_version(fe); if (ret) return ret; return fe->ops.tuner_ops.init(fe); } static int tda827x_initial_sleep(struct dvb_frontend *fe) { int ret; ret = tda827x_probe_version(fe); if (ret) return ret; return fe->ops.tuner_ops.sleep(fe); } static struct dvb_tuner_ops tda827xo_tuner_ops = { .info = { .name = "Philips TDA827X", .frequency_min = 55000000, .frequency_max = 860000000, .frequency_step = 250000 }, .release = tda827x_release, .init = tda827x_initial_init, .sleep = tda827x_initial_sleep, .set_params = tda827xo_set_params, .set_analog_params = tda827xo_set_analog_params, .get_frequency = tda827x_get_frequency, .get_bandwidth = tda827x_get_bandwidth, }; static struct dvb_tuner_ops tda827xa_tuner_ops = { .info = { .name = "Philips TDA827XA", .frequency_min = 44000000, .frequency_max = 906000000, .frequency_step = 62500 }, .release = tda827x_release, .init = tda827x_init, .sleep = tda827xa_sleep, .set_params = tda827xa_set_params, .set_analog_params = tda827xa_set_analog_params, .get_frequency = tda827x_get_frequency, .get_bandwidth = tda827x_get_bandwidth, }; static int tda827x_probe_version(struct dvb_frontend *fe) { u8 data; int rc; struct tda827x_priv *priv = fe->tuner_priv; struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD, .buf = &data, .len = 1 }; rc = tuner_transfer(fe, &msg, 1); if (rc < 0) { printk("%s: could not read from tuner at addr: 0x%02x\n", __func__, msg.addr << 1); return rc; } if ((data & 0x3c) == 0) { dprintk("tda827x tuner found\n"); fe->ops.tuner_ops.init = tda827x_init; fe->ops.tuner_ops.sleep = tda827xo_sleep; if (priv->cfg) priv->cfg->agcf = tda827xo_agcf; } else { dprintk("tda827xa tuner found\n"); memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops)); if (priv->cfg) priv->cfg->agcf = tda827xa_agcf; } return 0; } struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr, struct i2c_adapter *i2c, struct tda827x_config *cfg) { struct tda827x_priv *priv = NULL; dprintk("%s:\n", __func__); priv = kzalloc(sizeof(struct tda827x_priv), GFP_KERNEL); if (priv == NULL) return NULL; priv->i2c_addr = addr; priv->i2c_adap = i2c; priv->cfg = cfg; memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops)); fe->tuner_priv = priv; dprintk("type set to %s\n", fe->ops.tuner_ops.info.name); return fe; } EXPORT_SYMBOL_GPL(tda827x_attach); MODULE_DESCRIPTION("DVB TDA827x driver"); MODULE_AUTHOR("Hartmut Hackmann <hartmut.hackmann@t-online.de>"); MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>"); MODULE_LICENSE("GPL"); /* * Overrides for Emacs so that we follow Linus's tabbing style. * --------------------------------------------------------------------------- * Local variables: * c-basic-offset: 8 * End: */