/* i2c tv tuner chip device driver controls the philips tda8290+75 tuner chip combo. 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/i2c.h> #include <linux/videodev.h> #include <linux/delay.h> #include "tuner-driver.h" /* ---------------------------------------------------------------------- */ struct tda8290_priv { unsigned char tda8290_easy_mode; unsigned char tda827x_lpsel; unsigned char tda827x_addr; unsigned char tda827x_ver; unsigned int sgIF; }; /* ---------------------------------------------------------------------- */ struct tda827x_data { u32 lomax; u8 spd; u8 bs; u8 bp; u8 cp; u8 gc3; u8 div1p5; }; /* Note lomax entry is lo / 62500 */ static struct tda827x_data tda827x_analog[] = { { .lomax = 992, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, /* 62 MHz */ { .lomax = 1056, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1}, /* 66 MHz */ { .lomax = 1216, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, /* 76 MHz */ { .lomax = 1344, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0}, /* 84 MHz */ { .lomax = 1488, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 93 MHz */ { .lomax = 1568, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 98 MHz */ { .lomax = 1744, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 109 MHz */ { .lomax = 1968, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 123 MHz */ { .lomax = 2128, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 133 MHz */ { .lomax = 2416, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 151 MHz */ { .lomax = 2464, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 154 MHz */ { .lomax = 2896, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0}, /* 181 MHz */ { .lomax = 2960, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 185 MHz */ { .lomax = 3472, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 217 MHz */ { .lomax = 3904, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 244 MHz */ { .lomax = 4240, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 265 MHz */ { .lomax = 4832, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 302 MHz */ { .lomax = 5184, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 324 MHz */ { .lomax = 5920, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 370 MHz */ { .lomax = 7264, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 454 MHz */ { .lomax = 7888, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 493 MHz */ { .lomax = 8480, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1}, /* 530 MHz */ { .lomax = 8864, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0}, /* 554 MHz */ { .lomax = 9664, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, /* 604 MHz */ { .lomax = 11088, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, /* 696 MHz */ { .lomax = 11840, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, /* 740 MHz */ { .lomax = 13120, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0}, /* 820 MHz */ { .lomax = 13840, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0}, /* 865 MHz */ { .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0} /* End */ }; static void tda827x_tune(struct i2c_client *c, u16 ifc, unsigned int freq) { unsigned char tuner_reg[8]; unsigned char reg2[2]; u32 N; int i; struct tuner *t = i2c_get_clientdata(c); struct tda8290_priv *priv = t->priv; struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags = 0}; if (t->mode == V4L2_TUNER_RADIO) freq = freq / 1000; N = freq + ifc; i = 0; while (tda827x_analog[i].lomax < N) { if(tda827x_analog[i + 1].lomax == 0) break; i++; } N = N << tda827x_analog[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->tda827x_lpsel << 5); tuner_reg[5] = (tda827x_analog[i].spd << 6) + (tda827x_analog[i].div1p5 <<5) + (tda827x_analog[i].bs <<3) + tda827x_analog[i].bp; tuner_reg[6] = 0x8f + (tda827x_analog[i].gc3 << 4); tuner_reg[7] = 0x8f; msg.buf = tuner_reg; msg.len = 8; i2c_transfer(c->adapter, &msg, 1); msg.buf= reg2; msg.len = 2; reg2[0] = 0x80; reg2[1] = 0; i2c_transfer(c->adapter, &msg, 1); reg2[0] = 0x60; reg2[1] = 0xbf; i2c_transfer(c->adapter, &msg, 1); reg2[0] = 0x30; reg2[1] = tuner_reg[4] + 0x80; i2c_transfer(c->adapter, &msg, 1); msleep(1); reg2[0] = 0x30; reg2[1] = tuner_reg[4] + 4; i2c_transfer(c->adapter, &msg, 1); msleep(1); reg2[0] = 0x30; reg2[1] = tuner_reg[4]; i2c_transfer(c->adapter, &msg, 1); msleep(550); reg2[0] = 0x30; reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_analog[i].cp ; i2c_transfer(c->adapter, &msg, 1); reg2[0] = 0x60; reg2[1] = 0x3f; i2c_transfer(c->adapter, &msg, 1); reg2[0] = 0x80; reg2[1] = 0x08; // Vsync en i2c_transfer(c->adapter, &msg, 1); } static void tda827x_agcf(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); struct tda8290_priv *priv = t->priv; unsigned char data[] = {0x80, 0x0c}; struct i2c_msg msg = {.addr = priv->tda827x_addr, .buf = data, .flags = 0, .len = 2}; i2c_transfer(c->adapter, &msg, 1); } /* ---------------------------------------------------------------------- */ struct tda827xa_data { u32 lomax; u8 svco; u8 spd; u8 scr; u8 sbs; u8 gc3; }; static struct tda827xa_data tda827xa_analog[] = { { .lomax = 910, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3}, /* 56.875 MHz */ { .lomax = 1076, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3}, /* 67.25 MHz */ { .lomax = 1300, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3}, /* 81.25 MHz */ { .lomax = 1560, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3}, /* 97.5 MHz */ { .lomax = 1820, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1}, /* 113.75 MHz */ { .lomax = 2152, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, /* 134.5 MHz */ { .lomax = 2464, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, /* 154 MHz */ { .lomax = 2600, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, /* 162.5 MHz */ { .lomax = 2928, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1}, /* 183 MHz */ { .lomax = 3120, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1}, /* 195 MHz */ { .lomax = 3640, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3}, /* 227.5 MHz */ { .lomax = 4304, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3}, /* 269 MHz */ { .lomax = 5200, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1}, /* 325 MHz */ { .lomax = 6240, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3}, /* 390 MHz */ { .lomax = 7280, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3}, /* 455 MHz */ { .lomax = 8320, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1}, /* 520 MHz */ { .lomax = 8608, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1}, /* 538 MHz */ { .lomax = 8864, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1}, /* 554 MHz */ { .lomax = 9920, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, /* 620 MHz */ { .lomax = 10400, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, /* 650 MHz */ { .lomax = 11200, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, /* 700 MHz */ { .lomax = 12480, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, /* 780 MHz */ { .lomax = 13120, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0}, /* 820 MHz */ { .lomax = 13920, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0}, /* 870 MHz */ { .lomax = 14576, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0}, /* 911 MHz */ { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0} /* End */ }; static void tda827xa_lna_gain(struct i2c_client *c, int high) { struct tuner *t = i2c_get_clientdata(c); unsigned char buf[] = {0x22, 0x01}; int arg; struct i2c_msg msg = {.addr = c->addr, .flags = 0, .buf = buf, .len = sizeof(buf)}; if (t->config) { if (high) tuner_dbg("setting LNA to high gain\n"); else tuner_dbg("setting LNA to low gain\n"); } switch (t->config) { case 0: /* no LNA */ break; case 1: /* switch is GPIO 0 of tda8290 */ case 2: /* turn Vsync on */ if (t->std & V4L2_STD_MN) arg = 1; else arg = 0; if (t->tuner_callback) t->tuner_callback(c->adapter->algo_data, 1, arg); buf[1] = high ? 0 : 1; if (t->config == 2) buf[1] = high ? 1 : 0; i2c_transfer(c->adapter, &msg, 1); break; case 3: /* switch with GPIO of saa713x */ if (t->tuner_callback) t->tuner_callback(c->adapter->algo_data, 0, high); break; } } static void tda827xa_tune(struct i2c_client *c, u16 ifc, unsigned int freq) { unsigned char tuner_reg[11]; u32 N; int i; struct tuner *t = i2c_get_clientdata(c); struct tda8290_priv *priv = t->priv; struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags = 0, .buf = tuner_reg}; tda827xa_lna_gain( c, 1); msleep(10); if (t->mode == V4L2_TUNER_RADIO) freq = freq / 1000; N = freq + ifc; i = 0; while (tda827xa_analog[i].lomax < N) { 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(c->adapter, &msg, 1); tuner_reg[0] = 0x90; tuner_reg[1] = 0xff; tuner_reg[2] = 0xe0; tuner_reg[3] = 0; tuner_reg[4] = 0x99 + (priv->tda827x_lpsel << 1); msg.len = 5; i2c_transfer(c->adapter, &msg, 1); tuner_reg[0] = 0xa0; tuner_reg[1] = 0xc0; msg.len = 2; i2c_transfer(c->adapter, &msg, 1); tuner_reg[0] = 0x30; tuner_reg[1] = 0x10 + tda827xa_analog[i].scr; i2c_transfer(c->adapter, &msg, 1); msg.flags = I2C_M_RD; i2c_transfer(c->adapter, &msg, 1); msg.flags = 0; tuner_reg[1] >>= 4; tuner_dbg("AGC2 gain is: %d\n", tuner_reg[1]); if (tuner_reg[1] < 1) tda827xa_lna_gain( c, 0); msleep(100); tuner_reg[0] = 0x60; tuner_reg[1] = 0x3c; i2c_transfer(c->adapter, &msg, 1); msleep(163); tuner_reg[0] = 0x50; tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4); i2c_transfer(c->adapter, &msg, 1); tuner_reg[0] = 0x80; tuner_reg[1] = 0x28; i2c_transfer(c->adapter, &msg, 1); tuner_reg[0] = 0xb0; tuner_reg[1] = 0x01; i2c_transfer(c->adapter, &msg, 1); tuner_reg[0] = 0xc0; tuner_reg[1] = 0x19 + (priv->tda827x_lpsel << 1); i2c_transfer(c->adapter, &msg, 1); } static void tda827xa_agcf(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); struct tda8290_priv *priv = t->priv; unsigned char data[] = {0x80, 0x2c}; struct i2c_msg msg = {.addr = priv->tda827x_addr, .buf = data, .flags = 0, .len = 2}; i2c_transfer(c->adapter, &msg, 1); } /*---------------------------------------------------------------------*/ static void tda8290_i2c_bridge(struct i2c_client *c, int close) { unsigned char enable[2] = { 0x21, 0xC0 }; unsigned char disable[2] = { 0x21, 0x00 }; unsigned char *msg; if(close) { msg = enable; i2c_master_send(c, msg, 2); /* let the bridge stabilize */ msleep(20); } else { msg = disable; i2c_master_send(c, msg, 2); } } /*---------------------------------------------------------------------*/ static int tda8290_tune(struct i2c_client *c, u16 ifc, unsigned int freq) { struct tuner *t = i2c_get_clientdata(c); struct tda8290_priv *priv = t->priv; unsigned char soft_reset[] = { 0x00, 0x00 }; unsigned char easy_mode[] = { 0x01, priv->tda8290_easy_mode }; unsigned char expert_mode[] = { 0x01, 0x80 }; unsigned char agc_out_on[] = { 0x02, 0x00 }; unsigned char gainset_off[] = { 0x28, 0x14 }; unsigned char if_agc_spd[] = { 0x0f, 0x88 }; unsigned char adc_head_6[] = { 0x05, 0x04 }; unsigned char adc_head_9[] = { 0x05, 0x02 }; unsigned char adc_head_12[] = { 0x05, 0x01 }; unsigned char pll_bw_nom[] = { 0x0d, 0x47 }; unsigned char pll_bw_low[] = { 0x0d, 0x27 }; unsigned char gainset_2[] = { 0x28, 0x64 }; unsigned char agc_rst_on[] = { 0x0e, 0x0b }; unsigned char agc_rst_off[] = { 0x0e, 0x09 }; unsigned char if_agc_set[] = { 0x0f, 0x81 }; unsigned char addr_adc_sat = 0x1a; unsigned char addr_agc_stat = 0x1d; unsigned char addr_pll_stat = 0x1b; unsigned char adc_sat, agc_stat, pll_stat; int i; tuner_dbg("tda827xa config is 0x%02x\n", t->config); i2c_master_send(c, easy_mode, 2); i2c_master_send(c, agc_out_on, 2); i2c_master_send(c, soft_reset, 2); msleep(1); expert_mode[1] = priv->tda8290_easy_mode + 0x80; i2c_master_send(c, expert_mode, 2); i2c_master_send(c, gainset_off, 2); i2c_master_send(c, if_agc_spd, 2); if (priv->tda8290_easy_mode & 0x60) i2c_master_send(c, adc_head_9, 2); else i2c_master_send(c, adc_head_6, 2); i2c_master_send(c, pll_bw_nom, 2); tda8290_i2c_bridge(c, 1); if (priv->tda827x_ver != 0) tda827xa_tune(c, ifc, freq); else tda827x_tune(c, ifc, freq); for (i = 0; i < 3; i++) { i2c_master_send(c, &addr_pll_stat, 1); i2c_master_recv(c, &pll_stat, 1); if (pll_stat & 0x80) { i2c_master_send(c, &addr_adc_sat, 1); i2c_master_recv(c, &adc_sat, 1); i2c_master_send(c, &addr_agc_stat, 1); i2c_master_recv(c, &agc_stat, 1); tuner_dbg("tda8290 is locked, AGC: %d\n", agc_stat); break; } else { tuner_dbg("tda8290 not locked, no signal?\n"); msleep(100); } } /* adjust headroom resp. gain */ if ((agc_stat > 115) || (!(pll_stat & 0x80) && (adc_sat < 20))) { tuner_dbg("adjust gain, step 1. Agc: %d, ADC stat: %d, lock: %d\n", agc_stat, adc_sat, pll_stat & 0x80); i2c_master_send(c, gainset_2, 2); msleep(100); i2c_master_send(c, &addr_agc_stat, 1); i2c_master_recv(c, &agc_stat, 1); i2c_master_send(c, &addr_pll_stat, 1); i2c_master_recv(c, &pll_stat, 1); if ((agc_stat > 115) || !(pll_stat & 0x80)) { tuner_dbg("adjust gain, step 2. Agc: %d, lock: %d\n", agc_stat, pll_stat & 0x80); if (priv->tda827x_ver != 0) tda827xa_agcf(c); else tda827x_agcf(c); msleep(100); i2c_master_send(c, &addr_agc_stat, 1); i2c_master_recv(c, &agc_stat, 1); i2c_master_send(c, &addr_pll_stat, 1); i2c_master_recv(c, &pll_stat, 1); if((agc_stat > 115) || !(pll_stat & 0x80)) { tuner_dbg("adjust gain, step 3. Agc: %d\n", agc_stat); i2c_master_send(c, adc_head_12, 2); i2c_master_send(c, pll_bw_low, 2); msleep(100); } } } /* l/ l' deadlock? */ if(priv->tda8290_easy_mode & 0x60) { i2c_master_send(c, &addr_adc_sat, 1); i2c_master_recv(c, &adc_sat, 1); i2c_master_send(c, &addr_pll_stat, 1); i2c_master_recv(c, &pll_stat, 1); if ((adc_sat > 20) || !(pll_stat & 0x80)) { tuner_dbg("trying to resolve SECAM L deadlock\n"); i2c_master_send(c, agc_rst_on, 2); msleep(40); i2c_master_send(c, agc_rst_off, 2); } } tda8290_i2c_bridge(c, 0); i2c_master_send(c, if_agc_set, 2); return 0; } /*---------------------------------------------------------------------*/ static void set_audio(struct tuner *t) { struct tda8290_priv *priv = t->priv; char* mode; priv->tda827x_lpsel = 0; if (t->std & V4L2_STD_MN) { priv->sgIF = 92; priv->tda8290_easy_mode = 0x01; priv->tda827x_lpsel = 1; mode = "MN"; } else if (t->std & V4L2_STD_B) { priv->sgIF = 108; priv->tda8290_easy_mode = 0x02; mode = "B"; } else if (t->std & V4L2_STD_GH) { priv->sgIF = 124; priv->tda8290_easy_mode = 0x04; mode = "GH"; } else if (t->std & V4L2_STD_PAL_I) { priv->sgIF = 124; priv->tda8290_easy_mode = 0x08; mode = "I"; } else if (t->std & V4L2_STD_DK) { priv->sgIF = 124; priv->tda8290_easy_mode = 0x10; mode = "DK"; } else if (t->std & V4L2_STD_SECAM_L) { priv->sgIF = 124; priv->tda8290_easy_mode = 0x20; mode = "L"; } else if (t->std & V4L2_STD_SECAM_LC) { priv->sgIF = 20; priv->tda8290_easy_mode = 0x40; mode = "LC"; } else { priv->sgIF = 124; priv->tda8290_easy_mode = 0x10; mode = "xx"; } tuner_dbg("setting tda8290 to system %s\n", mode); } static void set_tv_freq(struct i2c_client *c, unsigned int freq) { struct tuner *t = i2c_get_clientdata(c); struct tda8290_priv *priv = t->priv; set_audio(t); tda8290_tune(c, priv->sgIF, freq); } static void set_radio_freq(struct i2c_client *c, unsigned int freq) { /* if frequency is 5.5 MHz */ tda8290_tune(c, 88, freq); } static int has_signal(struct i2c_client *c) { unsigned char i2c_get_afc[1] = { 0x1B }; unsigned char afc = 0; i2c_master_send(c, i2c_get_afc, ARRAY_SIZE(i2c_get_afc)); i2c_master_recv(c, &afc, 1); return (afc & 0x80)? 65535:0; } /*---------------------------------------------------------------------*/ static void standby(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); struct tda8290_priv *priv = t->priv; unsigned char cb1[] = { 0x30, 0xD0 }; unsigned char tda8290_standby[] = { 0x00, 0x02 }; unsigned char tda8290_agc_tri[] = { 0x02, 0x20 }; struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, .buf=cb1, .len = 2}; tda8290_i2c_bridge(c, 1); if (priv->tda827x_ver != 0) cb1[1] = 0x90; i2c_transfer(c->adapter, &msg, 1); tda8290_i2c_bridge(c, 0); i2c_master_send(c, tda8290_agc_tri, 2); i2c_master_send(c, tda8290_standby, 2); } static void tda8290_init_if(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); unsigned char set_VS[] = { 0x30, 0x6F }; unsigned char set_GP00_CF[] = { 0x20, 0x01 }; unsigned char set_GP01_CF[] = { 0x20, 0x0B }; if ((t->config == 1) || (t->config == 2)) i2c_master_send(c, set_GP00_CF, 2); else i2c_master_send(c, set_GP01_CF, 2); i2c_master_send(c, set_VS, 2); } static void tda8290_init_tuner(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); struct tda8290_priv *priv = t->priv; unsigned char tda8275_init[] = { 0x00, 0x00, 0x00, 0x40, 0xdC, 0x04, 0xAf, 0x3F, 0x2A, 0x04, 0xFF, 0x00, 0x00, 0x40 }; unsigned char tda8275a_init[] = { 0x00, 0x00, 0x00, 0x00, 0xdC, 0x05, 0x8b, 0x0c, 0x04, 0x20, 0xFF, 0x00, 0x00, 0x4b }; struct i2c_msg msg = {.addr = priv->tda827x_addr, .flags=0, .buf=tda8275_init, .len = 14}; if (priv->tda827x_ver != 0) msg.buf = tda8275a_init; tda8290_i2c_bridge(c, 1); i2c_transfer(c->adapter, &msg, 1); tda8290_i2c_bridge(c, 0); } /*---------------------------------------------------------------------*/ static void tda8290_release(struct i2c_client *c) { struct tuner *t = i2c_get_clientdata(c); kfree(t->priv); t->priv = NULL; } static struct tuner_operations tda8290_tuner_ops = { .set_tv_freq = set_tv_freq, .set_radio_freq = set_radio_freq, .has_signal = has_signal, .standby = standby, .release = tda8290_release, }; int tda8290_init(struct i2c_client *c) { struct tda8290_priv *priv = NULL; struct tuner *t = i2c_get_clientdata(c); u8 data; int i, ret, tuners_found; u32 tuner_addrs; struct i2c_msg msg = {.flags=I2C_M_RD, .buf=&data, .len = 1}; priv = kzalloc(sizeof(struct tda8290_priv), GFP_KERNEL); if (priv == NULL) return -ENOMEM; t->priv = priv; tda8290_i2c_bridge(c, 1); /* probe for tuner chip */ tuners_found = 0; tuner_addrs = 0; for (i=0x60; i<= 0x63; i++) { msg.addr = i; ret = i2c_transfer(c->adapter, &msg, 1); if (ret == 1) { tuners_found++; tuner_addrs = (tuner_addrs << 8) + i; } } /* if there is more than one tuner, we expect the right one is behind the bridge and we choose the highest address that doesn't give a response now */ tda8290_i2c_bridge(c, 0); if(tuners_found > 1) for (i = 0; i < tuners_found; i++) { msg.addr = tuner_addrs & 0xff; ret = i2c_transfer(c->adapter, &msg, 1); if(ret == 1) tuner_addrs = tuner_addrs >> 8; else break; } if (tuner_addrs == 0) { tuner_addrs = 0x61; tuner_info ("could not clearly identify tuner address, defaulting to %x\n", tuner_addrs); } else { tuner_addrs = tuner_addrs & 0xff; tuner_info ("setting tuner address to %x\n", tuner_addrs); } priv->tda827x_addr = tuner_addrs; msg.addr = tuner_addrs; tda8290_i2c_bridge(c, 1); ret = i2c_transfer(c->adapter, &msg, 1); if( ret != 1) tuner_warn ("TDA827x access failed!\n"); if ((data & 0x3c) == 0) { strlcpy(c->name, "tda8290+75", sizeof(c->name)); priv->tda827x_ver = 0; } else { strlcpy(c->name, "tda8290+75a", sizeof(c->name)); priv->tda827x_ver = 2; } tuner_info("type set to %s\n", c->name); memcpy(&t->ops, &tda8290_tuner_ops, sizeof(struct tuner_operations)); priv->tda827x_lpsel = 0; t->mode = V4L2_TUNER_ANALOG_TV; tda8290_init_tuner(c); tda8290_init_if(c); return 0; } int tda8290_probe(struct i2c_client *c) { unsigned char soft_reset[] = { 0x00, 0x00 }; unsigned char easy_mode_b[] = { 0x01, 0x02 }; unsigned char easy_mode_g[] = { 0x01, 0x04 }; unsigned char restore_9886[] = { 0x00, 0xd6, 0x30 }; unsigned char addr_dto_lsb = 0x07; unsigned char data; i2c_master_send(c, easy_mode_b, 2); i2c_master_send(c, soft_reset, 2); i2c_master_send(c, &addr_dto_lsb, 1); i2c_master_recv(c, &data, 1); if (data == 0) { i2c_master_send(c, easy_mode_g, 2); i2c_master_send(c, soft_reset, 2); i2c_master_send(c, &addr_dto_lsb, 1); i2c_master_recv(c, &data, 1); if (data == 0x7b) { return 0; } } i2c_master_send(c, restore_9886, 3); return -1; } /* * Overrides for Emacs so that we follow Linus's tabbing style. * --------------------------------------------------------------------------- * Local variables: * c-basic-offset: 8 * End: */