896 lines · c
1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 *4 * (c) 2005 Hartmut Hackmann5 * (c) 2007 Michael Krufky6 */7 8#include <linux/module.h>9#include <linux/slab.h>10#include <asm/types.h>11#include <linux/dvb/frontend.h>12#include <linux/videodev2.h>13 14#include "tda827x.h"15 16static int debug;17module_param(debug, int, 0644);18MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");19 20#define dprintk(args...) \21 do { \22 if (debug) printk(KERN_DEBUG "tda827x: " args); \23 } while (0)24 25struct tda827x_priv {26 int i2c_addr;27 struct i2c_adapter *i2c_adap;28 struct tda827x_config *cfg;29 30 unsigned int sgIF;31 unsigned char lpsel;32 33 u32 frequency;34 u32 bandwidth;35};36 37static void tda827x_set_std(struct dvb_frontend *fe,38 struct analog_parameters *params)39{40 struct tda827x_priv *priv = fe->tuner_priv;41 char *mode;42 43 priv->lpsel = 0;44 if (params->std & V4L2_STD_MN) {45 priv->sgIF = 92;46 priv->lpsel = 1;47 mode = "MN";48 } else if (params->std & V4L2_STD_B) {49 priv->sgIF = 108;50 mode = "B";51 } else if (params->std & V4L2_STD_GH) {52 priv->sgIF = 124;53 mode = "GH";54 } else if (params->std & V4L2_STD_PAL_I) {55 priv->sgIF = 124;56 mode = "I";57 } else if (params->std & V4L2_STD_DK) {58 priv->sgIF = 124;59 mode = "DK";60 } else if (params->std & V4L2_STD_SECAM_L) {61 priv->sgIF = 124;62 mode = "L";63 } else if (params->std & V4L2_STD_SECAM_LC) {64 priv->sgIF = 20;65 mode = "LC";66 } else {67 priv->sgIF = 124;68 mode = "xx";69 }70 71 if (params->mode == V4L2_TUNER_RADIO) {72 priv->sgIF = 88; /* if frequency is 5.5 MHz */73 dprintk("setting tda827x to radio FM\n");74 } else75 dprintk("setting tda827x to system %s\n", mode);76}77 78 79/* ------------------------------------------------------------------ */80 81struct tda827x_data {82 u32 lomax;83 u8 spd;84 u8 bs;85 u8 bp;86 u8 cp;87 u8 gc3;88 u8 div1p5;89};90 91static const struct tda827x_data tda827x_table[] = {92 { .lomax = 62000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},93 { .lomax = 66000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 1},94 { .lomax = 76000000, .spd = 3, .bs = 1, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},95 { .lomax = 84000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 3, .div1p5 = 0},96 { .lomax = 93000000, .spd = 3, .bs = 2, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},97 { .lomax = 98000000, .spd = 3, .bs = 3, .bp = 0, .cp = 0, .gc3 = 1, .div1p5 = 0},98 { .lomax = 109000000, .spd = 3, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},99 { .lomax = 123000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},100 { .lomax = 133000000, .spd = 2, .bs = 3, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 1},101 { .lomax = 151000000, .spd = 2, .bs = 1, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},102 { .lomax = 154000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 1, .div1p5 = 0},103 { .lomax = 181000000, .spd = 2, .bs = 2, .bp = 1, .cp = 0, .gc3 = 0, .div1p5 = 0},104 { .lomax = 185000000, .spd = 2, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},105 { .lomax = 217000000, .spd = 2, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},106 { .lomax = 244000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},107 { .lomax = 265000000, .spd = 1, .bs = 3, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 1},108 { .lomax = 302000000, .spd = 1, .bs = 1, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},109 { .lomax = 324000000, .spd = 1, .bs = 2, .bp = 2, .cp = 0, .gc3 = 1, .div1p5 = 0},110 { .lomax = 370000000, .spd = 1, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},111 { .lomax = 454000000, .spd = 1, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},112 { .lomax = 493000000, .spd = 0, .bs = 2, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},113 { .lomax = 530000000, .spd = 0, .bs = 3, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 1},114 { .lomax = 554000000, .spd = 0, .bs = 1, .bp = 3, .cp = 0, .gc3 = 1, .div1p5 = 0},115 { .lomax = 604000000, .spd = 0, .bs = 1, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},116 { .lomax = 696000000, .spd = 0, .bs = 2, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},117 { .lomax = 740000000, .spd = 0, .bs = 2, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},118 { .lomax = 820000000, .spd = 0, .bs = 3, .bp = 4, .cp = 0, .gc3 = 0, .div1p5 = 0},119 { .lomax = 865000000, .spd = 0, .bs = 3, .bp = 4, .cp = 1, .gc3 = 0, .div1p5 = 0},120 { .lomax = 0, .spd = 0, .bs = 0, .bp = 0, .cp = 0, .gc3 = 0, .div1p5 = 0}121};122 123static int tuner_transfer(struct dvb_frontend *fe,124 struct i2c_msg *msg,125 const int size)126{127 int rc;128 struct tda827x_priv *priv = fe->tuner_priv;129 130 if (fe->ops.i2c_gate_ctrl)131 fe->ops.i2c_gate_ctrl(fe, 1);132 rc = i2c_transfer(priv->i2c_adap, msg, size);133 if (fe->ops.i2c_gate_ctrl)134 fe->ops.i2c_gate_ctrl(fe, 0);135 136 if (rc >= 0 && rc != size)137 return -EIO;138 139 return rc;140}141 142static int tda827xo_set_params(struct dvb_frontend *fe)143{144 struct dtv_frontend_properties *c = &fe->dtv_property_cache;145 struct tda827x_priv *priv = fe->tuner_priv;146 u8 buf[14];147 int rc;148 149 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,150 .buf = buf, .len = sizeof(buf) };151 int i, tuner_freq, if_freq;152 u32 N;153 154 dprintk("%s:\n", __func__);155 if (c->bandwidth_hz == 0) {156 if_freq = 5000000;157 } else if (c->bandwidth_hz <= 6000000) {158 if_freq = 4000000;159 } else if (c->bandwidth_hz <= 7000000) {160 if_freq = 4500000;161 } else { /* 8 MHz */162 if_freq = 5000000;163 }164 tuner_freq = c->frequency;165 166 i = 0;167 while (tda827x_table[i].lomax < tuner_freq) {168 if (tda827x_table[i + 1].lomax == 0)169 break;170 i++;171 }172 173 tuner_freq += if_freq;174 175 N = ((tuner_freq + 125000) / 250000) << (tda827x_table[i].spd + 2);176 buf[0] = 0;177 buf[1] = (N>>8) | 0x40;178 buf[2] = N & 0xff;179 buf[3] = 0;180 buf[4] = 0x52;181 buf[5] = (tda827x_table[i].spd << 6) + (tda827x_table[i].div1p5 << 5) +182 (tda827x_table[i].bs << 3) +183 tda827x_table[i].bp;184 buf[6] = (tda827x_table[i].gc3 << 4) + 0x8f;185 buf[7] = 0xbf;186 buf[8] = 0x2a;187 buf[9] = 0x05;188 buf[10] = 0xff;189 buf[11] = 0x00;190 buf[12] = 0x00;191 buf[13] = 0x40;192 193 msg.len = 14;194 rc = tuner_transfer(fe, &msg, 1);195 if (rc < 0)196 goto err;197 198 msleep(500);199 /* correct CP value */200 buf[0] = 0x30;201 buf[1] = 0x50 + tda827x_table[i].cp;202 msg.len = 2;203 204 rc = tuner_transfer(fe, &msg, 1);205 if (rc < 0)206 goto err;207 208 priv->frequency = c->frequency;209 priv->bandwidth = c->bandwidth_hz;210 211 return 0;212 213err:214 printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",215 __func__, priv->i2c_addr << 1);216 return rc;217}218 219static int tda827xo_sleep(struct dvb_frontend *fe)220{221 struct tda827x_priv *priv = fe->tuner_priv;222 static u8 buf[] = { 0x30, 0xd0 };223 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,224 .buf = buf, .len = sizeof(buf) };225 226 dprintk("%s:\n", __func__);227 tuner_transfer(fe, &msg, 1);228 229 if (priv->cfg && priv->cfg->sleep)230 priv->cfg->sleep(fe);231 232 return 0;233}234 235/* ------------------------------------------------------------------ */236 237static int tda827xo_set_analog_params(struct dvb_frontend *fe,238 struct analog_parameters *params)239{240 unsigned char tuner_reg[8];241 unsigned char reg2[2];242 u32 N;243 int i;244 struct tda827x_priv *priv = fe->tuner_priv;245 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0 };246 unsigned int freq = params->frequency;247 248 tda827x_set_std(fe, params);249 250 if (params->mode == V4L2_TUNER_RADIO)251 freq = freq / 1000;252 253 N = freq + priv->sgIF;254 255 i = 0;256 while (tda827x_table[i].lomax < N * 62500) {257 if (tda827x_table[i + 1].lomax == 0)258 break;259 i++;260 }261 262 N = N << tda827x_table[i].spd;263 264 tuner_reg[0] = 0;265 tuner_reg[1] = (unsigned char)(N>>8);266 tuner_reg[2] = (unsigned char) N;267 tuner_reg[3] = 0x40;268 tuner_reg[4] = 0x52 + (priv->lpsel << 5);269 tuner_reg[5] = (tda827x_table[i].spd << 6) +270 (tda827x_table[i].div1p5 << 5) +271 (tda827x_table[i].bs << 3) + tda827x_table[i].bp;272 tuner_reg[6] = 0x8f + (tda827x_table[i].gc3 << 4);273 tuner_reg[7] = 0x8f;274 275 msg.buf = tuner_reg;276 msg.len = 8;277 tuner_transfer(fe, &msg, 1);278 279 msg.buf = reg2;280 msg.len = 2;281 reg2[0] = 0x80;282 reg2[1] = 0;283 tuner_transfer(fe, &msg, 1);284 285 reg2[0] = 0x60;286 reg2[1] = 0xbf;287 tuner_transfer(fe, &msg, 1);288 289 reg2[0] = 0x30;290 reg2[1] = tuner_reg[4] + 0x80;291 tuner_transfer(fe, &msg, 1);292 293 msleep(1);294 reg2[0] = 0x30;295 reg2[1] = tuner_reg[4] + 4;296 tuner_transfer(fe, &msg, 1);297 298 msleep(1);299 reg2[0] = 0x30;300 reg2[1] = tuner_reg[4];301 tuner_transfer(fe, &msg, 1);302 303 msleep(550);304 reg2[0] = 0x30;305 reg2[1] = (tuner_reg[4] & 0xfc) + tda827x_table[i].cp;306 tuner_transfer(fe, &msg, 1);307 308 reg2[0] = 0x60;309 reg2[1] = 0x3f;310 tuner_transfer(fe, &msg, 1);311 312 reg2[0] = 0x80;313 reg2[1] = 0x08; /* Vsync en */314 tuner_transfer(fe, &msg, 1);315 316 priv->frequency = params->frequency;317 318 return 0;319}320 321static void tda827xo_agcf(struct dvb_frontend *fe)322{323 struct tda827x_priv *priv = fe->tuner_priv;324 unsigned char data[] = { 0x80, 0x0c };325 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,326 .buf = data, .len = 2};327 328 tuner_transfer(fe, &msg, 1);329}330 331/* ------------------------------------------------------------------ */332 333struct tda827xa_data {334 u32 lomax;335 u8 svco;336 u8 spd;337 u8 scr;338 u8 sbs;339 u8 gc3;340};341 342static struct tda827xa_data tda827xa_dvbt[] = {343 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 1},344 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},345 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},346 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 1},347 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},348 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},349 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},350 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},351 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},352 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},353 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},354 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},355 { .lomax = 290000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},356 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},357 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},358 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 1},359 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},360 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},361 { .lomax = 550000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},362 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},363 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},364 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},365 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},366 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},367 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},368 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},369 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}370};371 372static struct tda827xa_data tda827xa_dvbc[] = {373 { .lomax = 50125000, .svco = 2, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},374 { .lomax = 58500000, .svco = 3, .spd = 4, .scr = 2, .sbs = 0, .gc3 = 3},375 { .lomax = 69250000, .svco = 0, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},376 { .lomax = 83625000, .svco = 1, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},377 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 2, .sbs = 0, .gc3 = 3},378 { .lomax = 100250000, .svco = 2, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},379 { .lomax = 117000000, .svco = 3, .spd = 3, .scr = 2, .sbs = 1, .gc3 = 1},380 { .lomax = 138500000, .svco = 0, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},381 { .lomax = 167250000, .svco = 1, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},382 { .lomax = 187000000, .svco = 2, .spd = 2, .scr = 2, .sbs = 1, .gc3 = 1},383 { .lomax = 200500000, .svco = 2, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 1},384 { .lomax = 234000000, .svco = 3, .spd = 2, .scr = 2, .sbs = 2, .gc3 = 3},385 { .lomax = 277000000, .svco = 0, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 3},386 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 2, .sbs = 2, .gc3 = 1},387 { .lomax = 334500000, .svco = 1, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},388 { .lomax = 401000000, .svco = 2, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 3},389 { .lomax = 468000000, .svco = 3, .spd = 1, .scr = 2, .sbs = 3, .gc3 = 1},390 { .lomax = 535000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},391 { .lomax = 554000000, .svco = 0, .spd = 0, .scr = 2, .sbs = 3, .gc3 = 1},392 { .lomax = 638000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},393 { .lomax = 669000000, .svco = 1, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},394 { .lomax = 720000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},395 { .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},396 { .lomax = 835000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},397 { .lomax = 885000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},398 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},399 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}400};401 402static struct tda827xa_data tda827xa_analog[] = {403 { .lomax = 56875000, .svco = 3, .spd = 4, .scr = 0, .sbs = 0, .gc3 = 3},404 { .lomax = 67250000, .svco = 0, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},405 { .lomax = 81250000, .svco = 1, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},406 { .lomax = 97500000, .svco = 2, .spd = 3, .scr = 0, .sbs = 0, .gc3 = 3},407 { .lomax = 113750000, .svco = 3, .spd = 3, .scr = 0, .sbs = 1, .gc3 = 1},408 { .lomax = 134500000, .svco = 0, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},409 { .lomax = 154000000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},410 { .lomax = 162500000, .svco = 1, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},411 { .lomax = 183000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 1, .gc3 = 1},412 { .lomax = 195000000, .svco = 2, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 1},413 { .lomax = 227500000, .svco = 3, .spd = 2, .scr = 0, .sbs = 2, .gc3 = 3},414 { .lomax = 269000000, .svco = 0, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 3},415 { .lomax = 325000000, .svco = 1, .spd = 1, .scr = 0, .sbs = 2, .gc3 = 1},416 { .lomax = 390000000, .svco = 2, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},417 { .lomax = 455000000, .svco = 3, .spd = 1, .scr = 0, .sbs = 3, .gc3 = 3},418 { .lomax = 520000000, .svco = 0, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},419 { .lomax = 538000000, .svco = 0, .spd = 0, .scr = 1, .sbs = 3, .gc3 = 1},420 { .lomax = 554000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 3, .gc3 = 1},421 { .lomax = 620000000, .svco = 1, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},422 { .lomax = 650000000, .svco = 1, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},423 { .lomax = 700000000, .svco = 2, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},424 { .lomax = 780000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},425 { .lomax = 820000000, .svco = 3, .spd = 0, .scr = 0, .sbs = 4, .gc3 = 0},426 { .lomax = 870000000, .svco = 3, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 0},427 { .lomax = 911000000, .svco = 3, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 0},428 { .lomax = 0, .svco = 0, .spd = 0, .scr = 0, .sbs = 0, .gc3 = 0}429};430 431static int tda827xa_sleep(struct dvb_frontend *fe)432{433 struct tda827x_priv *priv = fe->tuner_priv;434 static u8 buf[] = { 0x30, 0x90 };435 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,436 .buf = buf, .len = sizeof(buf) };437 438 dprintk("%s:\n", __func__);439 440 tuner_transfer(fe, &msg, 1);441 442 if (priv->cfg && priv->cfg->sleep)443 priv->cfg->sleep(fe);444 445 return 0;446}447 448static void tda827xa_lna_gain(struct dvb_frontend *fe, int high,449 struct analog_parameters *params)450{451 struct tda827x_priv *priv = fe->tuner_priv;452 unsigned char buf[] = {0x22, 0x01};453 int arg;454 int gp_func;455 struct i2c_msg msg = { .flags = 0, .buf = buf, .len = sizeof(buf) };456 457 if (NULL == priv->cfg) {458 dprintk("tda827x_config not defined, cannot set LNA gain!\n");459 return;460 }461 msg.addr = priv->cfg->switch_addr;462 if (priv->cfg->config) {463 if (high)464 dprintk("setting LNA to high gain\n");465 else466 dprintk("setting LNA to low gain\n");467 }468 switch (priv->cfg->config) {469 case TDA8290_LNA_OFF: /* no LNA */470 break;471 case TDA8290_LNA_GP0_HIGH_ON: /* switch is GPIO 0 of tda8290 */472 case TDA8290_LNA_GP0_HIGH_OFF:473 if (params == NULL) {474 gp_func = 0;475 arg = 0;476 } else {477 /* turn Vsync on */478 gp_func = 1;479 if (params->std & V4L2_STD_MN)480 arg = 1;481 else482 arg = 0;483 }484 if (fe->callback)485 fe->callback(priv->i2c_adap->algo_data,486 DVB_FRONTEND_COMPONENT_TUNER,487 gp_func, arg);488 buf[1] = high ? 0 : 1;489 if (priv->cfg->config == TDA8290_LNA_GP0_HIGH_OFF)490 buf[1] = high ? 1 : 0;491 tuner_transfer(fe, &msg, 1);492 break;493 case TDA8290_LNA_ON_BRIDGE: /* switch with GPIO of saa713x */494 if (fe->callback)495 fe->callback(priv->i2c_adap->algo_data,496 DVB_FRONTEND_COMPONENT_TUNER, 0, high);497 break;498 }499}500 501static int tda827xa_set_params(struct dvb_frontend *fe)502{503 struct dtv_frontend_properties *c = &fe->dtv_property_cache;504 struct tda827x_priv *priv = fe->tuner_priv;505 struct tda827xa_data *frequency_map = tda827xa_dvbt;506 u8 buf[11];507 508 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,509 .buf = buf, .len = sizeof(buf) };510 511 int i, tuner_freq, if_freq, rc;512 u32 N;513 514 dprintk("%s:\n", __func__);515 516 tda827xa_lna_gain(fe, 1, NULL);517 msleep(20);518 519 if (c->bandwidth_hz == 0) {520 if_freq = 5000000;521 } else if (c->bandwidth_hz <= 6000000) {522 if_freq = 4000000;523 } else if (c->bandwidth_hz <= 7000000) {524 if_freq = 4500000;525 } else { /* 8 MHz */526 if_freq = 5000000;527 }528 tuner_freq = c->frequency;529 530 switch (c->delivery_system) {531 case SYS_DVBC_ANNEX_A:532 case SYS_DVBC_ANNEX_C:533 dprintk("%s select tda827xa_dvbc\n", __func__);534 frequency_map = tda827xa_dvbc;535 break;536 default:537 break;538 }539 540 i = 0;541 while (frequency_map[i].lomax < tuner_freq) {542 if (frequency_map[i + 1].lomax == 0)543 break;544 i++;545 }546 547 tuner_freq += if_freq;548 549 N = ((tuner_freq + 31250) / 62500) << frequency_map[i].spd;550 buf[0] = 0; // subaddress551 buf[1] = N >> 8;552 buf[2] = N & 0xff;553 buf[3] = 0;554 buf[4] = 0x16;555 buf[5] = (frequency_map[i].spd << 5) + (frequency_map[i].svco << 3) +556 frequency_map[i].sbs;557 buf[6] = 0x4b + (frequency_map[i].gc3 << 4);558 buf[7] = 0x1c;559 buf[8] = 0x06;560 buf[9] = 0x24;561 buf[10] = 0x00;562 msg.len = 11;563 rc = tuner_transfer(fe, &msg, 1);564 if (rc < 0)565 goto err;566 567 buf[0] = 0x90;568 buf[1] = 0xff;569 buf[2] = 0x60;570 buf[3] = 0x00;571 buf[4] = 0x59; // lpsel, for 6MHz + 2572 msg.len = 5;573 rc = tuner_transfer(fe, &msg, 1);574 if (rc < 0)575 goto err;576 577 buf[0] = 0xa0;578 buf[1] = 0x40;579 msg.len = 2;580 rc = tuner_transfer(fe, &msg, 1);581 if (rc < 0)582 goto err;583 584 msleep(11);585 msg.flags = I2C_M_RD;586 rc = tuner_transfer(fe, &msg, 1);587 if (rc < 0)588 goto err;589 msg.flags = 0;590 591 buf[1] >>= 4;592 dprintk("tda8275a AGC2 gain is: %d\n", buf[1]);593 if ((buf[1]) < 2) {594 tda827xa_lna_gain(fe, 0, NULL);595 buf[0] = 0x60;596 buf[1] = 0x0c;597 rc = tuner_transfer(fe, &msg, 1);598 if (rc < 0)599 goto err;600 }601 602 buf[0] = 0xc0;603 buf[1] = 0x99; // lpsel, for 6MHz + 2604 rc = tuner_transfer(fe, &msg, 1);605 if (rc < 0)606 goto err;607 608 buf[0] = 0x60;609 buf[1] = 0x3c;610 rc = tuner_transfer(fe, &msg, 1);611 if (rc < 0)612 goto err;613 614 /* correct CP value */615 buf[0] = 0x30;616 buf[1] = 0x10 + frequency_map[i].scr;617 rc = tuner_transfer(fe, &msg, 1);618 if (rc < 0)619 goto err;620 621 msleep(163);622 buf[0] = 0xc0;623 buf[1] = 0x39; // lpsel, for 6MHz + 2624 rc = tuner_transfer(fe, &msg, 1);625 if (rc < 0)626 goto err;627 628 msleep(3);629 /* freeze AGC1 */630 buf[0] = 0x50;631 buf[1] = 0x4f + (frequency_map[i].gc3 << 4);632 rc = tuner_transfer(fe, &msg, 1);633 if (rc < 0)634 goto err;635 636 priv->frequency = c->frequency;637 priv->bandwidth = c->bandwidth_hz;638 639 return 0;640 641err:642 printk(KERN_ERR "%s: could not write to tuner at addr: 0x%02x\n",643 __func__, priv->i2c_addr << 1);644 return rc;645}646 647 648static int tda827xa_set_analog_params(struct dvb_frontend *fe,649 struct analog_parameters *params)650{651 unsigned char tuner_reg[11];652 u32 N;653 int i;654 struct tda827x_priv *priv = fe->tuner_priv;655 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = 0,656 .buf = tuner_reg, .len = sizeof(tuner_reg) };657 unsigned int freq = params->frequency;658 659 tda827x_set_std(fe, params);660 661 tda827xa_lna_gain(fe, 1, params);662 msleep(10);663 664 if (params->mode == V4L2_TUNER_RADIO)665 freq = freq / 1000;666 667 N = freq + priv->sgIF;668 669 i = 0;670 while (tda827xa_analog[i].lomax < N * 62500) {671 if (tda827xa_analog[i + 1].lomax == 0)672 break;673 i++;674 }675 676 N = N << tda827xa_analog[i].spd;677 678 tuner_reg[0] = 0;679 tuner_reg[1] = (unsigned char)(N>>8);680 tuner_reg[2] = (unsigned char) N;681 tuner_reg[3] = 0;682 tuner_reg[4] = 0x16;683 tuner_reg[5] = (tda827xa_analog[i].spd << 5) +684 (tda827xa_analog[i].svco << 3) +685 tda827xa_analog[i].sbs;686 tuner_reg[6] = 0x8b + (tda827xa_analog[i].gc3 << 4);687 tuner_reg[7] = 0x1c;688 tuner_reg[8] = 4;689 tuner_reg[9] = 0x20;690 tuner_reg[10] = 0x00;691 msg.len = 11;692 tuner_transfer(fe, &msg, 1);693 694 tuner_reg[0] = 0x90;695 tuner_reg[1] = 0xff;696 tuner_reg[2] = 0xe0;697 tuner_reg[3] = 0;698 tuner_reg[4] = 0x99 + (priv->lpsel << 1);699 msg.len = 5;700 tuner_transfer(fe, &msg, 1);701 702 tuner_reg[0] = 0xa0;703 tuner_reg[1] = 0xc0;704 msg.len = 2;705 tuner_transfer(fe, &msg, 1);706 707 tuner_reg[0] = 0x30;708 tuner_reg[1] = 0x10 + tda827xa_analog[i].scr;709 tuner_transfer(fe, &msg, 1);710 711 msg.flags = I2C_M_RD;712 tuner_transfer(fe, &msg, 1);713 msg.flags = 0;714 tuner_reg[1] >>= 4;715 dprintk("AGC2 gain is: %d\n", tuner_reg[1]);716 if (tuner_reg[1] < 1)717 tda827xa_lna_gain(fe, 0, params);718 719 msleep(100);720 tuner_reg[0] = 0x60;721 tuner_reg[1] = 0x3c;722 tuner_transfer(fe, &msg, 1);723 724 msleep(163);725 tuner_reg[0] = 0x50;726 tuner_reg[1] = 0x8f + (tda827xa_analog[i].gc3 << 4);727 tuner_transfer(fe, &msg, 1);728 729 tuner_reg[0] = 0x80;730 tuner_reg[1] = 0x28;731 tuner_transfer(fe, &msg, 1);732 733 tuner_reg[0] = 0xb0;734 tuner_reg[1] = 0x01;735 tuner_transfer(fe, &msg, 1);736 737 tuner_reg[0] = 0xc0;738 tuner_reg[1] = 0x19 + (priv->lpsel << 1);739 tuner_transfer(fe, &msg, 1);740 741 priv->frequency = params->frequency;742 743 return 0;744}745 746static void tda827xa_agcf(struct dvb_frontend *fe)747{748 struct tda827x_priv *priv = fe->tuner_priv;749 unsigned char data[] = {0x80, 0x2c};750 struct i2c_msg msg = {.addr = priv->i2c_addr, .flags = 0,751 .buf = data, .len = 2};752 tuner_transfer(fe, &msg, 1);753}754 755/* ------------------------------------------------------------------ */756 757static void tda827x_release(struct dvb_frontend *fe)758{759 kfree(fe->tuner_priv);760 fe->tuner_priv = NULL;761}762 763static int tda827x_get_frequency(struct dvb_frontend *fe, u32 *frequency)764{765 struct tda827x_priv *priv = fe->tuner_priv;766 *frequency = priv->frequency;767 return 0;768}769 770static int tda827x_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)771{772 struct tda827x_priv *priv = fe->tuner_priv;773 *bandwidth = priv->bandwidth;774 return 0;775}776 777static int tda827x_init(struct dvb_frontend *fe)778{779 struct tda827x_priv *priv = fe->tuner_priv;780 dprintk("%s:\n", __func__);781 if (priv->cfg && priv->cfg->init)782 priv->cfg->init(fe);783 784 return 0;785}786 787static int tda827x_probe_version(struct dvb_frontend *fe);788 789static int tda827x_initial_init(struct dvb_frontend *fe)790{791 int ret;792 ret = tda827x_probe_version(fe);793 if (ret)794 return ret;795 return fe->ops.tuner_ops.init(fe);796}797 798static int tda827x_initial_sleep(struct dvb_frontend *fe)799{800 int ret;801 ret = tda827x_probe_version(fe);802 if (ret)803 return ret;804 return fe->ops.tuner_ops.sleep(fe);805}806 807static const struct dvb_tuner_ops tda827xo_tuner_ops = {808 .info = {809 .name = "Philips TDA827X",810 .frequency_min_hz = 55 * MHz,811 .frequency_max_hz = 860 * MHz,812 .frequency_step_hz = 250 * kHz813 },814 .release = tda827x_release,815 .init = tda827x_initial_init,816 .sleep = tda827x_initial_sleep,817 .set_params = tda827xo_set_params,818 .set_analog_params = tda827xo_set_analog_params,819 .get_frequency = tda827x_get_frequency,820 .get_bandwidth = tda827x_get_bandwidth,821};822 823static const struct dvb_tuner_ops tda827xa_tuner_ops = {824 .info = {825 .name = "Philips TDA827XA",826 .frequency_min_hz = 44 * MHz,827 .frequency_max_hz = 906 * MHz,828 .frequency_step_hz = 62500829 },830 .release = tda827x_release,831 .init = tda827x_init,832 .sleep = tda827xa_sleep,833 .set_params = tda827xa_set_params,834 .set_analog_params = tda827xa_set_analog_params,835 .get_frequency = tda827x_get_frequency,836 .get_bandwidth = tda827x_get_bandwidth,837};838 839static int tda827x_probe_version(struct dvb_frontend *fe)840{841 u8 data;842 int rc;843 struct tda827x_priv *priv = fe->tuner_priv;844 struct i2c_msg msg = { .addr = priv->i2c_addr, .flags = I2C_M_RD,845 .buf = &data, .len = 1 };846 847 rc = tuner_transfer(fe, &msg, 1);848 849 if (rc < 0) {850 printk("%s: could not read from tuner at addr: 0x%02x\n",851 __func__, msg.addr << 1);852 return rc;853 }854 if ((data & 0x3c) == 0) {855 dprintk("tda827x tuner found\n");856 fe->ops.tuner_ops.init = tda827x_init;857 fe->ops.tuner_ops.sleep = tda827xo_sleep;858 if (priv->cfg)859 priv->cfg->agcf = tda827xo_agcf;860 } else {861 dprintk("tda827xa tuner found\n");862 memcpy(&fe->ops.tuner_ops, &tda827xa_tuner_ops, sizeof(struct dvb_tuner_ops));863 if (priv->cfg)864 priv->cfg->agcf = tda827xa_agcf;865 }866 return 0;867}868 869struct dvb_frontend *tda827x_attach(struct dvb_frontend *fe, int addr,870 struct i2c_adapter *i2c,871 struct tda827x_config *cfg)872{873 struct tda827x_priv *priv = NULL;874 875 dprintk("%s:\n", __func__);876 priv = kzalloc(sizeof(struct tda827x_priv), GFP_KERNEL);877 if (priv == NULL)878 return NULL;879 880 priv->i2c_addr = addr;881 priv->i2c_adap = i2c;882 priv->cfg = cfg;883 memcpy(&fe->ops.tuner_ops, &tda827xo_tuner_ops, sizeof(struct dvb_tuner_ops));884 fe->tuner_priv = priv;885 886 dprintk("type set to %s\n", fe->ops.tuner_ops.info.name);887 888 return fe;889}890EXPORT_SYMBOL_GPL(tda827x_attach);891 892MODULE_DESCRIPTION("DVB TDA827x driver");893MODULE_AUTHOR("Hartmut Hackmann <hartmut.hackmann@t-online.de>");894MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");895MODULE_LICENSE("GPL");896