| /* |
| * |
| * (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 <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 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 <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: |
| */ |