From 7c91f0624a9a2b8b9b122cf94fef34bc7f7347a6 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Tue, 29 Apr 2008 21:38:44 -0300 Subject: V4L/DVB(7767): Move tuners to common/tuners There were several issues in the past, caused by the hybrid tuner design, since now, the same tuner can be used by drivers/media/dvb and drivers/media/video. Kconfig items were rearranged, to split V4L/DVB core from their drivers. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/common/tuners/tda827x.c | 852 ++++++++++++++++++++++++++++++++++ 1 file changed, 852 insertions(+) create mode 100644 drivers/media/common/tuners/tda827x.c (limited to 'drivers/media/common/tuners/tda827x.c') diff --git a/drivers/media/common/tuners/tda827x.c b/drivers/media/common/tuners/tda827x.c new file mode 100644 index 000000000000..d30d2c9094d9 --- /dev/null +++ b/drivers/media/common/tuners/tda827x.c @@ -0,0 +1,852 @@ +/* + * + * (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 +#include +#include +#include + +#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 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 tda827xo_set_params(struct dvb_frontend *fe, + struct dvb_frontend_parameters *params) +{ + struct tda827x_priv *priv = fe->tuner_priv; + u8 buf[14]; + + 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__); + switch (params->u.ofdm.bandwidth) { + case BANDWIDTH_6_MHZ: + if_freq = 4000000; + break; + case BANDWIDTH_7_MHZ: + if_freq = 4500000; + break; + default: /* 8 MHz or Auto */ + if_freq = 5000000; + break; + } + tuner_freq = params->frequency + if_freq; + + i = 0; + while (tda827x_table[i].lomax < tuner_freq) { + if (tda827x_table[i + 1].lomax == 0) + break; + i++; + } + + 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; + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + if (i2c_transfer(priv->i2c_adap, &msg, 1) != 1) { + printk("%s: could not write to tuner at addr: 0x%02x\n", + __func__, priv->i2c_addr << 1); + return -EIO; + } + msleep(500); + /* correct CP value */ + buf[0] = 0x30; + buf[1] = 0x50 + tda827x_table[i].cp; + msg.len = 2; + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + i2c_transfer(priv->i2c_adap, &msg, 1); + + priv->frequency = tuner_freq - if_freq; // FIXME + priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0; + + return 0; +} + +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__); + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + i2c_transfer(priv->i2c_adap, &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; + i2c_transfer(priv->i2c_adap, &msg, 1); + + msg.buf = reg2; + msg.len = 2; + reg2[0] = 0x80; + reg2[1] = 0; + i2c_transfer(priv->i2c_adap, &msg, 1); + + reg2[0] = 0x60; + reg2[1] = 0xbf; + i2c_transfer(priv->i2c_adap, &msg, 1); + + reg2[0] = 0x30; + reg2[1] = tuner_reg[4] + 0x80; + i2c_transfer(priv->i2c_adap, &msg, 1); + + msleep(1); + reg2[0] = 0x30; + reg2[1] = tuner_reg[4] + 4; + i2c_transfer(priv->i2c_adap, &msg, 1); + + msleep(1); + reg2[0] = 0x30; + reg2[1] = tuner_reg[4]; + i2c_transfer(priv->i2c_adap, &msg, 1); + + msleep(550); + reg2[0] = 0x30; + reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp; + i2c_transfer(priv->i2c_adap, &msg, 1); + + reg2[0] = 0x60; + reg2[1] = 0x3f; + i2c_transfer(priv->i2c_adap, &msg, 1); + + reg2[0] = 0x80; + reg2[1] = 0x08; /* Vsync en */ + i2c_transfer(priv->i2c_adap, &msg, 1); + + priv->frequency = freq * 62500; + + 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}; + + i2c_transfer(priv->i2c_adap, &msg, 1); +} + +/* ------------------------------------------------------------------ */ + +struct tda827xa_data { + u32 lomax; + u8 svco; + u8 spd; + u8 scr; + u8 sbs; + u8 gc3; +}; + +static const 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_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__); + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + + i2c_transfer(priv->i2c_adap, &msg, 1); + + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 0); + + 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 = { .addr = priv->cfg->switch_addr, .flags = 0, + .buf = buf, .len = sizeof(buf) }; + + if (NULL == priv->cfg) { + dprintk("tda827x_config not defined, cannot set LNA gain!\n"); + return; + } + 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 (priv->cfg->tuner_callback) + priv->cfg->tuner_callback(priv->i2c_adap->algo_data, + gp_func, arg); + buf[1] = high ? 0 : 1; + if (priv->cfg->config == 2) + buf[1] = high ? 1 : 0; + i2c_transfer(priv->i2c_adap, &msg, 1); + break; + case 3: /* switch with GPIO of saa713x */ + if (priv->cfg->tuner_callback) + priv->cfg->tuner_callback(priv->i2c_adap->algo_data, 0, high); + break; + } +} + +static int tda827xa_set_params(struct dvb_frontend *fe, + struct dvb_frontend_parameters *params) +{ + struct tda827x_priv *priv = fe->tuner_priv; + u8 buf[11]; + + 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__); + + tda827xa_lna_gain(fe, 1, NULL); + msleep(20); + + switch (params->u.ofdm.bandwidth) { + case BANDWIDTH_6_MHZ: + if_freq = 4000000; + break; + case BANDWIDTH_7_MHZ: + if_freq = 4500000; + break; + default: /* 8 MHz or Auto */ + if_freq = 5000000; + break; + } + tuner_freq = params->frequency + if_freq; + + i = 0; + while (tda827xa_dvbt[i].lomax < tuner_freq) { + if(tda827xa_dvbt[i + 1].lomax == 0) + break; + i++; + } + + N = ((tuner_freq + 31250) / 62500) << tda827xa_dvbt[i].spd; + buf[0] = 0; // subaddress + buf[1] = N >> 8; + buf[2] = N & 0xff; + buf[3] = 0; + buf[4] = 0x16; + buf[5] = (tda827xa_dvbt[i].spd << 5) + (tda827xa_dvbt[i].svco << 3) + + tda827xa_dvbt[i].sbs; + buf[6] = 0x4b + (tda827xa_dvbt[i].gc3 << 4); + buf[7] = 0x1c; + buf[8] = 0x06; + buf[9] = 0x24; + buf[10] = 0x00; + msg.len = 11; + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + if (i2c_transfer(priv->i2c_adap, &msg, 1) != 1) { + printk("%s: could not write to tuner at addr: 0x%02x\n", + __func__, priv->i2c_addr << 1); + return -EIO; + } + buf[0] = 0x90; + buf[1] = 0xff; + buf[2] = 0x60; + buf[3] = 0x00; + buf[4] = 0x59; // lpsel, for 6MHz + 2 + msg.len = 5; + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + i2c_transfer(priv->i2c_adap, &msg, 1); + + buf[0] = 0xa0; + buf[1] = 0x40; + msg.len = 2; + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + i2c_transfer(priv->i2c_adap, &msg, 1); + + msleep(11); + msg.flags = I2C_M_RD; + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + i2c_transfer(priv->i2c_adap, &msg, 1); + 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; + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + i2c_transfer(priv->i2c_adap, &msg, 1); + } + + buf[0] = 0xc0; + buf[1] = 0x99; // lpsel, for 6MHz + 2 + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + i2c_transfer(priv->i2c_adap, &msg, 1); + + buf[0] = 0x60; + buf[1] = 0x3c; + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + i2c_transfer(priv->i2c_adap, &msg, 1); + + /* correct CP value */ + buf[0] = 0x30; + buf[1] = 0x10 + tda827xa_dvbt[i].scr; + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + i2c_transfer(priv->i2c_adap, &msg, 1); + + msleep(163); + buf[0] = 0xc0; + buf[1] = 0x39; // lpsel, for 6MHz + 2 + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + i2c_transfer(priv->i2c_adap, &msg, 1); + + msleep(3); + /* freeze AGC1 */ + buf[0] = 0x50; + buf[1] = 0x4f + (tda827xa_dvbt[i].gc3 << 4); + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + i2c_transfer(priv->i2c_adap, &msg, 1); + + priv->frequency = tuner_freq - if_freq; // FIXME + priv->bandwidth = (fe->ops.info.type == FE_OFDM) ? params->u.ofdm.bandwidth : 0; + + return 0; +} + + +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; + i2c_transfer(priv->i2c_adap, &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; + i2c_transfer(priv->i2c_adap, &msg, 1); + + tuner_reg[0] = 0xa0; + tuner_reg[1] = 0xc0; + msg.len = 2; + i2c_transfer(priv->i2c_adap, &msg, 1); + + tuner_reg[0] = 0x30; + tuner_reg[1] = 0x10 + tda827xa_analog[i].scr; + i2c_transfer(priv->i2c_adap, &msg, 1); + + msg.flags = I2C_M_RD; + i2c_transfer(priv->i2c_adap, &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; + i2c_transfer(priv->i2c_adap, &msg, 1); + + msleep(163); + tuner_reg[0] = 0x50; + tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4); + i2c_transfer(priv->i2c_adap, &msg, 1); + + tuner_reg[0] = 0x80; + tuner_reg[1] = 0x28; + i2c_transfer(priv->i2c_adap, &msg, 1); + + tuner_reg[0] = 0xb0; + tuner_reg[1] = 0x01; + i2c_transfer(priv->i2c_adap, &msg, 1); + + tuner_reg[0] = 0xc0; + tuner_reg[1] = 0x19 + (priv->lpsel << 1); + i2c_transfer(priv->i2c_adap, &msg, 1); + + priv->frequency = freq * 62500; + + 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}; + i2c_transfer(priv->i2c_adap, &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; + struct tda827x_priv *priv = fe->tuner_priv; + struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD, + .buf = &data, .len = 1 }; + if (fe->ops.i2c_gate_ctrl) + fe->ops.i2c_gate_ctrl(fe, 1); + if (i2c_transfer(priv->i2c_adap, &msg, 1) != 1) { + printk("%s: could not read from tuner at addr: 0x%02x\n", + __func__, msg.addr << 1); + return -EIO; + } + 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 "); +MODULE_AUTHOR("Michael Krufky "); +MODULE_LICENSE("GPL"); + +/* + * Overrides for Emacs so that we follow Linus's tabbing style. + * --------------------------------------------------------------------------- + * Local variables: + * c-basic-offset: 8 + * End: + */ -- cgit v1.2.3-59-g8ed1b