| | 1 | /* tuner-xc2028 |
| | 2 | * |
| | 3 | * Copyright (c) 2007-2008 Mauro Carvalho Chehab (mchehab@infradead.org) |
| | 4 | * |
| | 5 | * Copyright (c) 2007 Michel Ludwig (michel.ludwig@gmail.com) |
| | 6 | * - frontend interface |
| | 7 | * |
| | 8 | * This code is placed under the terms of the GNU General Public License v2 |
| | 9 | */ |
| | 10 | |
| | 11 | #include <linux/i2c.h> |
| | 12 | #include <asm/div64.h> |
| | 13 | #include <linux/firmware.h> |
| | 14 | #include <linux/videodev2.h> |
| | 15 | #include <linux/delay.h> |
| | 16 | #include <media/tuner.h> |
| | 17 | #include <linux/mutex.h> |
| | 18 | #include <asm/unaligned.h> |
| | 19 | #include "tuner-i2c.h" |
| | 20 | #include "tuner-xc2028.h" |
| | 21 | #include "tuner-xc2028-types.h" |
| | 22 | |
| | 23 | #include <linux/dvb/frontend.h> |
| | 24 | #include "dvb_frontend.h" |
| | 25 | |
| | 26 | |
| | 27 | static int debug; |
| | 28 | module_param(debug, int, 0644); |
| | 29 | MODULE_PARM_DESC(debug, "enable verbose debug messages"); |
| | 30 | |
| | 31 | static int no_poweroff; |
| | 32 | module_param(no_poweroff, int, 0644); |
| | 33 | MODULE_PARM_DESC(debug, "0 (default) powers device off when not used.\n" |
| | 34 | "1 keep device energized and with tuner ready all the times.\n" |
| | 35 | " Faster, but consumes more power and keeps the device hotter\n"); |
| | 36 | |
| | 37 | static char audio_std[8]; |
| | 38 | module_param_string(audio_std, audio_std, sizeof(audio_std), 0); |
| | 39 | MODULE_PARM_DESC(audio_std, |
| | 40 | "Audio standard. XC3028 audio decoder explicitly " |
| | 41 | "needs to know what audio\n" |
| | 42 | "standard is needed for some video standards with audio A2 or NICAM.\n" |
| | 43 | "The valid values are:\n" |
| | 44 | "A2\n" |
| | 45 | "A2/A\n" |
| | 46 | "A2/B\n" |
| | 47 | "NICAM\n" |
| | 48 | "NICAM/A\n" |
| | 49 | "NICAM/B\n"); |
| | 50 | |
| | 51 | static char firmware_name[FIRMWARE_NAME_MAX]; |
| | 52 | module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0); |
| | 53 | MODULE_PARM_DESC(firmware_name, "Firmware file name. Allows overriding the " |
| | 54 | "default firmware name\n"); |
| | 55 | |
| | 56 | static LIST_HEAD(hybrid_tuner_instance_list); |
| | 57 | static DEFINE_MUTEX(xc2028_list_mutex); |
| | 58 | |
| | 59 | /* struct for storing firmware table */ |
| | 60 | struct firmware_description { |
| | 61 | unsigned int type; |
| | 62 | v4l2_std_id id; |
| | 63 | __u16 int_freq; |
| | 64 | unsigned char *ptr; |
| | 65 | unsigned int size; |
| | 66 | }; |
| | 67 | |
| | 68 | struct firmware_properties { |
| | 69 | unsigned int type; |
| | 70 | v4l2_std_id id; |
| | 71 | v4l2_std_id std_req; |
| | 72 | __u16 int_freq; |
| | 73 | unsigned int scode_table; |
| | 74 | int scode_nr; |
| | 75 | }; |
| | 76 | |
| | 77 | struct xc2028_data { |
| | 78 | struct list_head hybrid_tuner_instance_list; |
| | 79 | struct tuner_i2c_props i2c_props; |
| | 80 | __u32 frequency; |
| | 81 | |
| | 82 | struct firmware_description *firm; |
| | 83 | int firm_size; |
| | 84 | __u16 firm_version; |
| | 85 | |
| | 86 | __u16 hwmodel; |
| | 87 | __u16 hwvers; |
| | 88 | |
| | 89 | struct xc2028_ctrl ctrl; |
| | 90 | |
| | 91 | struct firmware_properties cur_fw; |
| | 92 | |
| | 93 | struct mutex lock; |
| | 94 | }; |
| | 95 | |
| | 96 | #define i2c_send(priv, buf, size) ({ \ |
| | 97 | int _rc; \ |
| | 98 | _rc = tuner_i2c_xfer_send(&priv->i2c_props, buf, size); \ |
| | 99 | if (size != _rc) \ |
| | 100 | tuner_info("i2c output error: rc = %d (should be %d)\n",\ |
| | 101 | _rc, (int)size); \ |
| | 102 | _rc; \ |
| | 103 | }) |
| | 104 | |
| | 105 | #define i2c_rcv(priv, buf, size) ({ \ |
| | 106 | int _rc; \ |
| | 107 | _rc = tuner_i2c_xfer_recv(&priv->i2c_props, buf, size); \ |
| | 108 | if (size != _rc) \ |
| | 109 | tuner_err("i2c input error: rc = %d (should be %d)\n", \ |
| | 110 | _rc, (int)size); \ |
| | 111 | _rc; \ |
| | 112 | }) |
| | 113 | |
| | 114 | #define i2c_send_recv(priv, obuf, osize, ibuf, isize) ({ \ |
| | 115 | int _rc; \ |
| | 116 | _rc = tuner_i2c_xfer_send_recv(&priv->i2c_props, obuf, osize, \ |
| | 117 | ibuf, isize); \ |
| | 118 | if (isize != _rc) \ |
| | 119 | tuner_err("i2c input error: rc = %d (should be %d)\n", \ |
| | 120 | _rc, (int)isize); \ |
| | 121 | _rc; \ |
| | 122 | }) |
| | 123 | |
| | 124 | #define send_seq(priv, data...) ({ \ |
| | 125 | static u8 _val[] = data; \ |
| | 126 | int _rc; \ |
| | 127 | if (sizeof(_val) != \ |
| | 128 | (_rc = tuner_i2c_xfer_send(&priv->i2c_props, \ |
| | 129 | _val, sizeof(_val)))) { \ |
| | 130 | tuner_err("Error on line %d: %d\n", __LINE__, _rc); \ |
| | 131 | } else \ |
| | 132 | msleep(10); \ |
| | 133 | _rc; \ |
| | 134 | }) |
| | 135 | |
| | 136 | static int xc2028_get_reg(struct xc2028_data *priv, u16 reg, u16 *val) |
| | 137 | { |
| | 138 | unsigned char buf[2]; |
| | 139 | unsigned char ibuf[2]; |
| | 140 | |
| | 141 | tuner_dbg("%s %04x called\n", __func__, reg); |
| | 142 | |
| | 143 | buf[0] = reg >> 8; |
| | 144 | buf[1] = (unsigned char) reg; |
| | 145 | |
| | 146 | if (i2c_send_recv(priv, buf, 2, ibuf, 2) != 2) |
| | 147 | return -EIO; |
| | 148 | |
| | 149 | *val = (ibuf[1]) | (ibuf[0] << 8); |
| | 150 | return 0; |
| | 151 | } |
| | 152 | |
| | 153 | #define dump_firm_type(t) dump_firm_type_and_int_freq(t, 0) |
| | 154 | static void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq) |
| | 155 | { |
| | 156 | if (type & BASE) |
| | 157 | printk("BASE "); |
| | 158 | if (type & INIT1) |
| | 159 | printk("INIT1 "); |
| | 160 | if (type & F8MHZ) |
| | 161 | printk("F8MHZ "); |
| | 162 | if (type & MTS) |
| | 163 | printk("MTS "); |
| | 164 | if (type & D2620) |
| | 165 | printk("D2620 "); |
| | 166 | if (type & D2633) |
| | 167 | printk("D2633 "); |
| | 168 | if (type & DTV6) |
| | 169 | printk("DTV6 "); |
| | 170 | if (type & QAM) |
| | 171 | printk("QAM "); |
| | 172 | if (type & DTV7) |
| | 173 | printk("DTV7 "); |
| | 174 | if (type & DTV78) |
| | 175 | printk("DTV78 "); |
| | 176 | if (type & DTV8) |
| | 177 | printk("DTV8 "); |
| | 178 | if (type & FM) |
| | 179 | printk("FM "); |
| | 180 | if (type & INPUT1) |
| | 181 | printk("INPUT1 "); |
| | 182 | if (type & LCD) |
| | 183 | printk("LCD "); |
| | 184 | if (type & NOGD) |
| | 185 | printk("NOGD "); |
| | 186 | if (type & MONO) |
| | 187 | printk("MONO "); |
| | 188 | if (type & ATSC) |
| | 189 | printk("ATSC "); |
| | 190 | if (type & IF) |
| | 191 | printk("IF "); |
| | 192 | if (type & LG60) |
| | 193 | printk("LG60 "); |
| | 194 | if (type & ATI638) |
| | 195 | printk("ATI638 "); |
| | 196 | if (type & OREN538) |
| | 197 | printk("OREN538 "); |
| | 198 | if (type & OREN36) |
| | 199 | printk("OREN36 "); |
| | 200 | if (type & TOYOTA388) |
| | 201 | printk("TOYOTA388 "); |
| | 202 | if (type & TOYOTA794) |
| | 203 | printk("TOYOTA794 "); |
| | 204 | if (type & DIBCOM52) |
| | 205 | printk("DIBCOM52 "); |
| | 206 | if (type & ZARLINK456) |
| | 207 | printk("ZARLINK456 "); |
| | 208 | if (type & CHINA) |
| | 209 | printk("CHINA "); |
| | 210 | if (type & F6MHZ) |
| | 211 | printk("F6MHZ "); |
| | 212 | if (type & INPUT2) |
| | 213 | printk("INPUT2 "); |
| | 214 | if (type & SCODE) |
| | 215 | printk("SCODE "); |
| | 216 | if (type & HAS_IF) |
| | 217 | printk("HAS_IF_%d ", int_freq); |
| | 218 | } |
| | 219 | |
| | 220 | static v4l2_std_id parse_audio_std_option(void) |
| | 221 | { |
| | 222 | if (strcasecmp(audio_std, "A2") == 0) |
| | 223 | return V4L2_STD_A2; |
| | 224 | if (strcasecmp(audio_std, "A2/A") == 0) |
| | 225 | return V4L2_STD_A2_A; |
| | 226 | if (strcasecmp(audio_std, "A2/B") == 0) |
| | 227 | return V4L2_STD_A2_B; |
| | 228 | if (strcasecmp(audio_std, "NICAM") == 0) |
| | 229 | return V4L2_STD_NICAM; |
| | 230 | if (strcasecmp(audio_std, "NICAM/A") == 0) |
| | 231 | return V4L2_STD_NICAM_A; |
| | 232 | if (strcasecmp(audio_std, "NICAM/B") == 0) |
| | 233 | return V4L2_STD_NICAM_B; |
| | 234 | |
| | 235 | return 0; |
| | 236 | } |
| | 237 | |
| | 238 | static void free_firmware(struct xc2028_data *priv) |
| | 239 | { |
| | 240 | int i; |
| | 241 | tuner_dbg("%s called\n", __func__); |
| | 242 | |
| | 243 | if (!priv->firm) |
| | 244 | return; |
| | 245 | |
| | 246 | for (i = 0; i < priv->firm_size; i++) |
| | 247 | kfree(priv->firm[i].ptr); |
| | 248 | |
| | 249 | kfree(priv->firm); |
| | 250 | |
| | 251 | priv->firm = NULL; |
| | 252 | priv->firm_size = 0; |
| | 253 | |
| | 254 | memset(&priv->cur_fw, 0, sizeof(priv->cur_fw)); |
| | 255 | } |
| | 256 | |
| | 257 | static int load_all_firmwares(struct dvb_frontend *fe) |
| | 258 | { |
| | 259 | struct xc2028_data *priv = fe->tuner_priv; |
| | 260 | const struct firmware *fw = NULL; |
| | 261 | const unsigned char *p, *endp; |
| | 262 | int rc = 0; |
| | 263 | int n, n_array; |
| | 264 | char name[33]; |
| | 265 | char *fname; |
| | 266 | |
| | 267 | tuner_dbg("%s called\n", __func__); |
| | 268 | |
| | 269 | if (!firmware_name[0]) |
| | 270 | fname = priv->ctrl.fname; |
| | 271 | else |
| | 272 | fname = firmware_name; |
| | 273 | |
| | 274 | tuner_dbg("Reading firmware %s\n", fname); |
| | 275 | rc = request_firmware(&fw, fname, &priv->i2c_props.adap->dev); |
| | 276 | if (rc < 0) { |
| | 277 | if (rc == -ENOENT) |
| | 278 | tuner_err("Error: firmware %s not found.\n", |
| | 279 | fname); |
| | 280 | else |
| | 281 | tuner_err("Error %d while requesting firmware %s \n", |
| | 282 | rc, fname); |
| | 283 | |
| | 284 | return rc; |
| | 285 | } |
| | 286 | p = fw->data; |
| | 287 | endp = p + fw->size; |
| | 288 | |
| | 289 | if (fw->size < sizeof(name) - 1 + 2 + 2) { |
| | 290 | tuner_err("Error: firmware file %s has invalid size!\n", |
| | 291 | fname); |
| | 292 | goto corrupt; |
| | 293 | } |
| | 294 | |
| | 295 | memcpy(name, p, sizeof(name) - 1); |
| | 296 | name[sizeof(name) - 1] = 0; |
| | 297 | p += sizeof(name) - 1; |
| | 298 | |
| | 299 | priv->firm_version = get_unaligned_le16(p); |
| | 300 | p += 2; |
| | 301 | |
| | 302 | n_array = get_unaligned_le16(p); |
| | 303 | p += 2; |
| | 304 | |
| | 305 | tuner_info("Loading %d firmware images from %s, type: %s, ver %d.%d\n", |
| | 306 | n_array, fname, name, |
| | 307 | priv->firm_version >> 8, priv->firm_version & 0xff); |
| | 308 | |
| | 309 | priv->firm = kzalloc(sizeof(*priv->firm) * n_array, GFP_KERNEL); |
| | 310 | if (priv->firm == NULL) { |
| | 311 | tuner_err("Not enough memory to load firmware file.\n"); |
| | 312 | rc = -ENOMEM; |
| | 313 | goto err; |
| | 314 | } |
| | 315 | priv->firm_size = n_array; |
| | 316 | |
| | 317 | n = -1; |
| | 318 | while (p < endp) { |
| | 319 | __u32 type, size; |
| | 320 | v4l2_std_id id; |
| | 321 | __u16 int_freq = 0; |
| | 322 | |
| | 323 | n++; |
| | 324 | if (n >= n_array) { |
| | 325 | tuner_err("More firmware images in file than " |
| | 326 | "were expected!\n"); |
| | 327 | goto corrupt; |
| | 328 | } |
| | 329 | |
| | 330 | /* Checks if there's enough bytes to read */ |
| | 331 | if (endp - p < sizeof(type) + sizeof(id) + sizeof(size)) |
| | 332 | goto header; |
| | 333 | |
| | 334 | type = get_unaligned_le32(p); |
| | 335 | p += sizeof(type); |
| | 336 | |
| | 337 | id = get_unaligned_le64(p); |
| | 338 | p += sizeof(id); |
| | 339 | |
| | 340 | if (type & HAS_IF) { |
| | 341 | int_freq = get_unaligned_le16(p); |
| | 342 | p += sizeof(int_freq); |
| | 343 | if (endp - p < sizeof(size)) |
| | 344 | goto header; |
| | 345 | } |
| | 346 | |
| | 347 | size = get_unaligned_le32(p); |
| | 348 | p += sizeof(size); |
| | 349 | |
| | 350 | if (!size || size > endp - p) { |
| | 351 | tuner_err("Firmware type "); |
| | 352 | dump_firm_type(type); |
| | 353 | printk("(%x), id %llx is corrupted " |
| | 354 | "(size=%d, expected %d)\n", |
| | 355 | type, (unsigned long long)id, |
| | 356 | (unsigned)(endp - p), size); |
| | 357 | goto corrupt; |
| | 358 | } |
| | 359 | |
| | 360 | priv->firm[n].ptr = kzalloc(size, GFP_KERNEL); |
| | 361 | if (priv->firm[n].ptr == NULL) { |
| | 362 | tuner_err("Not enough memory to load firmware file.\n"); |
| | 363 | rc = -ENOMEM; |
| | 364 | goto err; |
| | 365 | } |
| | 366 | tuner_dbg("Reading firmware type "); |
| | 367 | if (debug) { |
| | 368 | dump_firm_type_and_int_freq(type, int_freq); |
| | 369 | printk("(%x), id %llx, size=%d.\n", |
| | 370 | type, (unsigned long long)id, size); |
| | 371 | } |
| | 372 | |
| | 373 | memcpy(priv->firm[n].ptr, p, size); |
| | 374 | priv->firm[n].type = type; |
| | 375 | priv->firm[n].id = id; |
| | 376 | priv->firm[n].size = size; |
| | 377 | priv->firm[n].int_freq = int_freq; |
| | 378 | |
| | 379 | p += size; |
| | 380 | } |
| | 381 | |
| | 382 | if (n + 1 != priv->firm_size) { |
| | 383 | tuner_err("Firmware file is incomplete!\n"); |
| | 384 | goto corrupt; |
| | 385 | } |
| | 386 | |
| | 387 | goto done; |
| | 388 | |
| | 389 | header: |
| | 390 | tuner_err("Firmware header is incomplete!\n"); |
| | 391 | corrupt: |
| | 392 | rc = -EINVAL; |
| | 393 | tuner_err("Error: firmware file is corrupted!\n"); |
| | 394 | |
| | 395 | err: |
| | 396 | tuner_info("Releasing partially loaded firmware file.\n"); |
| | 397 | free_firmware(priv); |
| | 398 | |
| | 399 | done: |
| | 400 | release_firmware(fw); |
| | 401 | if (rc == 0) |
| | 402 | tuner_dbg("Firmware files loaded.\n"); |
| | 403 | |
| | 404 | return rc; |
| | 405 | } |
| | 406 | |
| | 407 | static int seek_firmware(struct dvb_frontend *fe, unsigned int type, |
| | 408 | v4l2_std_id *id) |
| | 409 | { |
| | 410 | struct xc2028_data *priv = fe->tuner_priv; |
| | 411 | int i, best_i = -1, best_nr_matches = 0; |
| | 412 | unsigned int type_mask = 0; |
| | 413 | |
| | 414 | tuner_dbg("%s called, want type=", __func__); |
| | 415 | if (debug) { |
| | 416 | dump_firm_type(type); |
| | 417 | printk("(%x), id %016llx.\n", type, (unsigned long long)*id); |
| | 418 | } |
| | 419 | |
| | 420 | if (!priv->firm) { |
| | 421 | tuner_err("Error! firmware not loaded\n"); |
| | 422 | return -EINVAL; |
| | 423 | } |
| | 424 | |
| | 425 | if (((type & ~SCODE) == 0) && (*id == 0)) |
| | 426 | *id = V4L2_STD_PAL; |
| | 427 | |
| | 428 | if (type & BASE) |
| | 429 | type_mask = BASE_TYPES; |
| | 430 | else if (type & SCODE) { |
| | 431 | type &= SCODE_TYPES; |
| | 432 | type_mask = SCODE_TYPES & ~HAS_IF; |
| | 433 | } else if (type & DTV_TYPES) |
| | 434 | type_mask = DTV_TYPES; |
| | 435 | else if (type & STD_SPECIFIC_TYPES) |
| | 436 | type_mask = STD_SPECIFIC_TYPES; |
| | 437 | |
| | 438 | type &= type_mask; |
| | 439 | |
| | 440 | if (!(type & SCODE)) |
| | 441 | type_mask = ~0; |
| | 442 | |
| | 443 | /* Seek for exact match */ |
| | 444 | for (i = 0; i < priv->firm_size; i++) { |
| | 445 | if ((type == (priv->firm[i].type & type_mask)) && |
| | 446 | (*id == priv->firm[i].id)) |
| | 447 | goto found; |
| | 448 | } |
| | 449 | |
| | 450 | /* Seek for generic video standard match */ |
| | 451 | for (i = 0; i < priv->firm_size; i++) { |
| | 452 | v4l2_std_id match_mask; |
| | 453 | int nr_matches; |
| | 454 | |
| | 455 | if (type != (priv->firm[i].type & type_mask)) |
| | 456 | continue; |
| | 457 | |
| | 458 | match_mask = *id & priv->firm[i].id; |
| | 459 | if (!match_mask) |
| | 460 | continue; |
| | 461 | |
| | 462 | if ((*id & match_mask) == *id) |
| | 463 | goto found; /* Supports all the requested standards */ |
| | 464 | |
| | 465 | nr_matches = hweight64(match_mask); |
| | 466 | if (nr_matches > best_nr_matches) { |
| | 467 | best_nr_matches = nr_matches; |
| | 468 | best_i = i; |
| | 469 | } |
| | 470 | } |
| | 471 | |
| | 472 | if (best_nr_matches > 0) { |
| | 473 | tuner_dbg("Selecting best matching firmware (%d bits) for " |
| | 474 | "type=", best_nr_matches); |
| | 475 | dump_firm_type(type); |
| | 476 | printk("(%x), id %016llx:\n", type, (unsigned long long)*id); |
| | 477 | i = best_i; |
| | 478 | goto found; |
| | 479 | } |
| | 480 | |
| | 481 | /*FIXME: Would make sense to seek for type "hint" match ? */ |
| | 482 | |
| | 483 | i = -ENOENT; |
| | 484 | goto ret; |
| | 485 | |
| | 486 | found: |
| | 487 | *id = priv->firm[i].id; |
| | 488 | |
| | 489 | ret: |
| | 490 | tuner_dbg("%s firmware for type=", (i < 0) ? "Can't find" : "Found"); |
| | 491 | if (debug) { |
| | 492 | dump_firm_type(type); |
| | 493 | printk("(%x), id %016llx.\n", type, (unsigned long long)*id); |
| | 494 | } |
| | 495 | return i; |
| | 496 | } |
| | 497 | |
| | 498 | static inline int do_tuner_callback(struct dvb_frontend *fe, int cmd, int arg) |
| | 499 | { |
| | 500 | struct xc2028_data *priv = fe->tuner_priv; |
| | 501 | |
| | 502 | /* analog side (tuner-core) uses i2c_adap->algo_data. |
| | 503 | * digital side is not guaranteed to have algo_data defined. |
| | 504 | * |
| | 505 | * digital side will always have fe->dvb defined. |
| | 506 | * analog side (tuner-core) doesn't (yet) define fe->dvb. |
| | 507 | */ |
| | 508 | |
| | 509 | return (!fe->callback) ? -EINVAL : |
| | 510 | fe->callback(((fe->dvb) && (fe->dvb->priv)) ? |
| | 511 | fe->dvb->priv : priv->i2c_props.adap->algo_data, |
| | 512 | DVB_FRONTEND_COMPONENT_TUNER, cmd, arg); |
| | 513 | } |
| | 514 | |
| | 515 | static int load_firmware(struct dvb_frontend *fe, unsigned int type, |
| | 516 | v4l2_std_id *id) |
| | 517 | { |
| | 518 | struct xc2028_data *priv = fe->tuner_priv; |
| | 519 | int pos, rc; |
| | 520 | unsigned char *p, *endp, buf[priv->ctrl.max_len]; |
| | 521 | |
| | 522 | tuner_dbg("%s called\n", __func__); |
| | 523 | |
| | 524 | pos = seek_firmware(fe, type, id); |
| | 525 | if (pos < 0) |
| | 526 | return pos; |
| | 527 | |
| | 528 | tuner_info("Loading firmware for type="); |
| | 529 | dump_firm_type(priv->firm[pos].type); |
| | 530 | printk("(%x), id %016llx.\n", priv->firm[pos].type, |
| | 531 | (unsigned long long)*id); |
| | 532 | |
| | 533 | p = priv->firm[pos].ptr; |
| | 534 | endp = p + priv->firm[pos].size; |
| | 535 | |
| | 536 | while (p < endp) { |
| | 537 | __u16 size; |
| | 538 | |
| | 539 | /* Checks if there's enough bytes to read */ |
| | 540 | if (p + sizeof(size) > endp) { |
| | 541 | tuner_err("Firmware chunk size is wrong\n"); |
| | 542 | return -EINVAL; |
| | 543 | } |
| | 544 | |
| | 545 | size = le16_to_cpu(*(__u16 *) p); |
| | 546 | p += sizeof(size); |
| | 547 | |
| | 548 | if (size == 0xffff) |
| | 549 | return 0; |
| | 550 | |
| | 551 | if (!size) { |
| | 552 | /* Special callback command received */ |
| | 553 | rc = do_tuner_callback(fe, XC2028_TUNER_RESET, 0); |
| | 554 | if (rc < 0) { |
| | 555 | tuner_err("Error at RESET code %d\n", |
| | 556 | (*p) & 0x7f); |
| | 557 | return -EINVAL; |
| | 558 | } |
| | 559 | continue; |
| | 560 | } |
| | 561 | if (size >= 0xff00) { |
| | 562 | switch (size) { |
| | 563 | case 0xff00: |
| | 564 | rc = do_tuner_callback(fe, XC2028_RESET_CLK, 0); |
| | 565 | if (rc < 0) { |
| | 566 | tuner_err("Error at RESET code %d\n", |
| | 567 | (*p) & 0x7f); |
| | 568 | return -EINVAL; |
| | 569 | } |
| | 570 | break; |
| | 571 | default: |
| | 572 | tuner_info("Invalid RESET code %d\n", |
| | 573 | size & 0x7f); |
| | 574 | return -EINVAL; |
| | 575 | |
| | 576 | } |
| | 577 | continue; |
| | 578 | } |
| | 579 | |
| | 580 | /* Checks for a sleep command */ |
| | 581 | if (size & 0x8000) { |
| | 582 | msleep(size & 0x7fff); |
| | 583 | continue; |
| | 584 | } |
| | 585 | |
| | 586 | if ((size + p > endp)) { |
| | 587 | tuner_err("missing bytes: need %d, have %d\n", |
| | 588 | size, (int)(endp - p)); |
| | 589 | return -EINVAL; |
| | 590 | } |
| | 591 | |
| | 592 | buf[0] = *p; |
| | 593 | p++; |
| | 594 | size--; |
| | 595 | |
| | 596 | /* Sends message chunks */ |
| | 597 | while (size > 0) { |
| | 598 | int len = (size < priv->ctrl.max_len - 1) ? |
| | 599 | size : priv->ctrl.max_len - 1; |
| | 600 | |
| | 601 | memcpy(buf + 1, p, len); |
| | 602 | |
| | 603 | rc = i2c_send(priv, buf, len + 1); |
| | 604 | if (rc < 0) { |
| | 605 | tuner_err("%d returned from send\n", rc); |
| | 606 | return -EINVAL; |
| | 607 | } |
| | 608 | |
| | 609 | p += len; |
| | 610 | size -= len; |
| | 611 | } |
| | 612 | } |
| | 613 | return 0; |
| | 614 | } |
| | 615 | |
| | 616 | static int load_scode(struct dvb_frontend *fe, unsigned int type, |
| | 617 | v4l2_std_id *id, __u16 int_freq, int scode) |
| | 618 | { |
| | 619 | struct xc2028_data *priv = fe->tuner_priv; |
| | 620 | int pos, rc; |
| | 621 | unsigned char *p; |
| | 622 | |
| | 623 | tuner_dbg("%s called\n", __func__); |
| | 624 | |
| | 625 | if (!int_freq) { |
| | 626 | pos = seek_firmware(fe, type, id); |
| | 627 | if (pos < 0) |
| | 628 | return pos; |
| | 629 | } else { |
| | 630 | for (pos = 0; pos < priv->firm_size; pos++) { |
| | 631 | if ((priv->firm[pos].int_freq == int_freq) && |
| | 632 | (priv->firm[pos].type & HAS_IF)) |
| | 633 | break; |
| | 634 | } |
| | 635 | if (pos == priv->firm_size) |
| | 636 | return -ENOENT; |
| | 637 | } |
| | 638 | |
| | 639 | p = priv->firm[pos].ptr; |
| | 640 | |
| | 641 | if (priv->firm[pos].type & HAS_IF) { |
| | 642 | if (priv->firm[pos].size != 12 * 16 || scode >= 16) |
| | 643 | return -EINVAL; |
| | 644 | p += 12 * scode; |
| | 645 | } else { |
| | 646 | /* 16 SCODE entries per file; each SCODE entry is 12 bytes and |
| | 647 | * has a 2-byte size header in the firmware format. */ |
| | 648 | if (priv->firm[pos].size != 14 * 16 || scode >= 16 || |
| | 649 | le16_to_cpu(*(__u16 *)(p + 14 * scode)) != 12) |
| | 650 | return -EINVAL; |
| | 651 | p += 14 * scode + 2; |
| | 652 | } |
| | 653 | |
| | 654 | tuner_info("Loading SCODE for type="); |
| | 655 | dump_firm_type_and_int_freq(priv->firm[pos].type, |
| | 656 | priv->firm[pos].int_freq); |
| | 657 | printk("(%x), id %016llx.\n", priv->firm[pos].type, |
| | 658 | (unsigned long long)*id); |
| | 659 | |
| | 660 | if (priv->firm_version < 0x0202) |
| | 661 | rc = send_seq(priv, {0x20, 0x00, 0x00, 0x00}); |
| | 662 | else |
| | 663 | rc = send_seq(priv, {0xa0, 0x00, 0x00, 0x00}); |
| | 664 | if (rc < 0) |
| | 665 | return -EIO; |
| | 666 | |
| | 667 | rc = i2c_send(priv, p, 12); |
| | 668 | if (rc < 0) |
| | 669 | return -EIO; |
| | 670 | |
| | 671 | rc = send_seq(priv, {0x00, 0x8c}); |
| | 672 | if (rc < 0) |
| | 673 | return -EIO; |
| | 674 | |
| | 675 | return 0; |
| | 676 | } |
| | 677 | |
| | 678 | static int check_firmware(struct dvb_frontend *fe, unsigned int type, |
| | 679 | v4l2_std_id std, __u16 int_freq) |
| | 680 | { |
| | 681 | struct xc2028_data *priv = fe->tuner_priv; |
| | 682 | struct firmware_properties new_fw; |
| | 683 | int rc = 0, is_retry = 0; |
| | 684 | u16 version, hwmodel; |
| | 685 | v4l2_std_id std0; |
| | 686 | |
| | 687 | tuner_dbg("%s called\n", __func__); |
| | 688 | |
| | 689 | if (!priv->firm) { |
| | 690 | if (!priv->ctrl.fname) { |
| | 691 | tuner_info("xc2028/3028 firmware name not set!\n"); |
| | 692 | return -EINVAL; |
| | 693 | } |
| | 694 | |
| | 695 | rc = load_all_firmwares(fe); |
| | 696 | if (rc < 0) |
| | 697 | return rc; |
| | 698 | } |
| | 699 | |
| | 700 | if (priv->ctrl.mts && !(type & FM)) |
| | 701 | type |= MTS; |
| | 702 | |
| | 703 | retry: |
| | 704 | new_fw.type = type; |
| | 705 | new_fw.id = std; |
| | 706 | new_fw.std_req = std; |
| | 707 | new_fw.scode_table = SCODE | priv->ctrl.scode_table; |
| | 708 | new_fw.scode_nr = 0; |
| | 709 | new_fw.int_freq = int_freq; |
| | 710 | |
| | 711 | tuner_dbg("checking firmware, user requested type="); |
| | 712 | if (debug) { |
| | 713 | dump_firm_type(new_fw.type); |
| | 714 | printk("(%x), id %016llx, ", new_fw.type, |
| | 715 | (unsigned long long)new_fw.std_req); |
| | 716 | if (!int_freq) { |
| | 717 | printk("scode_tbl "); |
| | 718 | dump_firm_type(priv->ctrl.scode_table); |
| | 719 | printk("(%x), ", priv->ctrl.scode_table); |
| | 720 | } else |
| | 721 | printk("int_freq %d, ", new_fw.int_freq); |
| | 722 | printk("scode_nr %d\n", new_fw.scode_nr); |
| | 723 | } |
| | 724 | |
| | 725 | /* No need to reload base firmware if it matches */ |
| | 726 | if (((BASE | new_fw.type) & BASE_TYPES) == |
| | 727 | (priv->cur_fw.type & BASE_TYPES)) { |
| | 728 | tuner_dbg("BASE firmware not changed.\n"); |
| | 729 | goto skip_base; |
| | 730 | } |
| | 731 | |
| | 732 | /* Updating BASE - forget about all currently loaded firmware */ |
| | 733 | memset(&priv->cur_fw, 0, sizeof(priv->cur_fw)); |
| | 734 | |
| | 735 | /* Reset is needed before loading firmware */ |
| | 736 | rc = do_tuner_callback(fe, XC2028_TUNER_RESET, 0); |
| | 737 | if (rc < 0) |
| | 738 | goto fail; |
| | 739 | |
| | 740 | /* BASE firmwares are all std0 */ |
| | 741 | std0 = 0; |
| | 742 | rc = load_firmware(fe, BASE | new_fw.type, &std0); |
| | 743 | if (rc < 0) { |
| | 744 | tuner_err("Error %d while loading base firmware\n", |
| | 745 | rc); |
| | 746 | goto fail; |
| | 747 | } |
| | 748 | |
| | 749 | /* Load INIT1, if needed */ |
| | 750 | tuner_dbg("Load init1 firmware, if exists\n"); |
| | 751 | |
| | 752 | rc = load_firmware(fe, BASE | INIT1 | new_fw.type, &std0); |
| | 753 | if (rc == -ENOENT) |
| | 754 | rc = load_firmware(fe, (BASE | INIT1 | new_fw.type) & ~F8MHZ, |
| | 755 | &std0); |
| | 756 | if (rc < 0 && rc != -ENOENT) { |
| | 757 | tuner_err("Error %d while loading init1 firmware\n", |
| | 758 | rc); |
| | 759 | goto fail; |
| | 760 | } |
| | 761 | |
| | 762 | skip_base: |
| | 763 | /* |
| | 764 | * No need to reload standard specific firmware if base firmware |
| | 765 | * was not reloaded and requested video standards have not changed. |
| | 766 | */ |
| | 767 | if (priv->cur_fw.type == (BASE | new_fw.type) && |
| | 768 | priv->cur_fw.std_req == std) { |
| | 769 | tuner_dbg("Std-specific firmware already loaded.\n"); |
| | 770 | goto skip_std_specific; |
| | 771 | } |
| | 772 | |
| | 773 | /* Reloading std-specific firmware forces a SCODE update */ |
| | 774 | priv->cur_fw.scode_table = 0; |
| | 775 | |
| | 776 | rc = load_firmware(fe, new_fw.type, &new_fw.id); |
| | 777 | if (rc == -ENOENT) |
| | 778 | rc = load_firmware(fe, new_fw.type & ~F8MHZ, &new_fw.id); |
| | 779 | |
| | 780 | if (rc < 0) |
| | 781 | goto fail; |
| | 782 | |
| | 783 | skip_std_specific: |
| | 784 | if (priv->cur_fw.scode_table == new_fw.scode_table && |
| | 785 | priv->cur_fw.scode_nr == new_fw.scode_nr) { |
| | 786 | tuner_dbg("SCODE firmware already loaded.\n"); |
| | 787 | goto check_device; |
| | 788 | } |
| | 789 | |
| | 790 | if (new_fw.type & FM) |
| | 791 | goto check_device; |
| | 792 | |
| | 793 | /* Load SCODE firmware, if exists */ |
| | 794 | tuner_dbg("Trying to load scode %d\n", new_fw.scode_nr); |
| | 795 | |
| | 796 | rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id, |
| | 797 | new_fw.int_freq, new_fw.scode_nr); |
| | 798 | |
| | 799 | check_device: |
| | 800 | if (xc2028_get_reg(priv, 0x0004, &version) < 0 || |
| | 801 | xc2028_get_reg(priv, 0x0008, &hwmodel) < 0) { |
| | 802 | tuner_err("Unable to read tuner registers.\n"); |
| | 803 | goto fail; |
| | 804 | } |
| | 805 | |
| | 806 | tuner_dbg("Device is Xceive %d version %d.%d, " |
| | 807 | "firmware version %d.%d\n", |
| | 808 | hwmodel, (version & 0xf000) >> 12, (version & 0xf00) >> 8, |
| | 809 | (version & 0xf0) >> 4, version & 0xf); |
| | 810 | |
| | 811 | /* Check firmware version against what we downloaded. */ |
| | 812 | if (priv->firm_version != ((version & 0xf0) << 4 | (version & 0x0f))) { |
| | 813 | tuner_err("Incorrect readback of firmware version.\n"); |
| | 814 | goto fail; |
| | 815 | } |
| | 816 | |
| | 817 | /* Check that the tuner hardware model remains consistent over time. */ |
| | 818 | if (priv->hwmodel == 0 && (hwmodel == 2028 || hwmodel == 3028)) { |
| | 819 | priv->hwmodel = hwmodel; |
| | 820 | priv->hwvers = version & 0xff00; |
| | 821 | } else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel || |
| | 822 | priv->hwvers != (version & 0xff00)) { |
| | 823 | tuner_err("Read invalid device hardware information - tuner " |
| | 824 | "hung?\n"); |
| | 825 | goto fail; |
| | 826 | } |
| | 827 | |
| | 828 | memcpy(&priv->cur_fw, &new_fw, sizeof(priv->cur_fw)); |
| | 829 | |
| | 830 | /* |
| | 831 | * By setting BASE in cur_fw.type only after successfully loading all |
| | 832 | * firmwares, we can: |
| | 833 | * 1. Identify that BASE firmware with type=0 has been loaded; |
| | 834 | * 2. Tell whether BASE firmware was just changed the next time through. |
| | 835 | */ |
| | 836 | priv->cur_fw.type |= BASE; |
| | 837 | |
| | 838 | return 0; |
| | 839 | |
| | 840 | fail: |
| | 841 | memset(&priv->cur_fw, 0, sizeof(priv->cur_fw)); |
| | 842 | if (!is_retry) { |
| | 843 | msleep(50); |
| | 844 | is_retry = 1; |
| | 845 | tuner_dbg("Retrying firmware load\n"); |
| | 846 | goto retry; |
| | 847 | } |
| | 848 | |
| | 849 | if (rc == -ENOENT) |
| | 850 | rc = -EINVAL; |
| | 851 | return rc; |
| | 852 | } |
| | 853 | |
| | 854 | static int xc2028_signal(struct dvb_frontend *fe, u16 *strength) |
| | 855 | { |
| | 856 | struct xc2028_data *priv = fe->tuner_priv; |
| | 857 | u16 frq_lock, signal = 0; |
| | 858 | int rc; |
| | 859 | |
| | 860 | tuner_dbg("%s called\n", __func__); |
| | 861 | |
| | 862 | mutex_lock(&priv->lock); |
| | 863 | |
| | 864 | /* Sync Lock Indicator */ |
| | 865 | rc = xc2028_get_reg(priv, 0x0002, &frq_lock); |
| | 866 | if (rc < 0) |
| | 867 | goto ret; |
| | 868 | |
| | 869 | /* Frequency is locked */ |
| | 870 | if (frq_lock == 1) |
| | 871 | signal = 32768; |
| | 872 | |
| | 873 | /* Get SNR of the video signal */ |
| | 874 | rc = xc2028_get_reg(priv, 0x0040, &signal); |
| | 875 | if (rc < 0) |
| | 876 | goto ret; |
| | 877 | |
| | 878 | /* Use both frq_lock and signal to generate the result */ |
| | 879 | signal = signal || ((signal & 0x07) << 12); |
| | 880 | |
| | 881 | ret: |
| | 882 | mutex_unlock(&priv->lock); |
| | 883 | |
| | 884 | *strength = signal; |
| | 885 | |
| | 886 | tuner_dbg("signal strength is %d\n", signal); |
| | 887 | |
| | 888 | return rc; |
| | 889 | } |
| | 890 | |
| | 891 | #define DIV 15625 |
| | 892 | |
| | 893 | static int generic_set_freq(struct dvb_frontend *fe, u32 freq /* in HZ */, |
| | 894 | enum tuner_mode new_mode, |
| | 895 | unsigned int type, |
| | 896 | v4l2_std_id std, |
| | 897 | u16 int_freq) |
| | 898 | { |
| | 899 | struct xc2028_data *priv = fe->tuner_priv; |
| | 900 | int rc = -EINVAL; |
| | 901 | unsigned char buf[4]; |
| | 902 | u32 div, offset = 0; |
| | 903 | |
| | 904 | tuner_dbg("%s called\n", __func__); |
| | 905 | |
| | 906 | mutex_lock(&priv->lock); |
| | 907 | |
| | 908 | tuner_dbg("should set frequency %d kHz\n", freq / 1000); |
| | 909 | |
| | 910 | if (check_firmware(fe, type, std, int_freq) < 0) |
| | 911 | goto ret; |
| | 912 | |
| | 913 | /* On some cases xc2028 can disable video output, if |
| | 914 | * very weak signals are received. By sending a soft |
| | 915 | * reset, this is re-enabled. So, it is better to always |
| | 916 | * send a soft reset before changing channels, to be sure |
| | 917 | * that xc2028 will be in a safe state. |
| | 918 | * Maybe this might also be needed for DTV. |
| | 919 | */ |
| | 920 | if (new_mode == T_ANALOG_TV) { |
| | 921 | rc = send_seq(priv, {0x00, 0x00}); |
| | 922 | } else if (priv->cur_fw.type & ATSC) { |
| | 923 | offset = 1750000; |
| | 924 | } else { |
| | 925 | offset = 2750000; |
| | 926 | /* |
| | 927 | * We must adjust the offset by 500kHz in two cases in order |
| | 928 | * to correctly center the IF output: |
| | 929 | * 1) When the ZARLINK456 or DIBCOM52 tables were explicitly |
| | 930 | * selected and a 7MHz channel is tuned; |
| | 931 | * 2) When tuning a VHF channel with DTV78 firmware. |
| | 932 | */ |
| | 933 | if (((priv->cur_fw.type & DTV7) && |
| | 934 | (priv->cur_fw.scode_table & (ZARLINK456 | DIBCOM52))) || |
| | 935 | ((priv->cur_fw.type & DTV78) && freq < 470000000)) |
| | 936 | offset -= 500000; |
| | 937 | } |
| | 938 | |
| | 939 | div = (freq - offset + DIV / 2) / DIV; |
| | 940 | |
| | 941 | /* CMD= Set frequency */ |
| | 942 | if (priv->firm_version < 0x0202) |
| | 943 | rc = send_seq(priv, {0x00, 0x02, 0x00, 0x00}); |
| | 944 | else |
| | 945 | rc = send_seq(priv, {0x80, 0x02, 0x00, 0x00}); |
| | 946 | if (rc < 0) |
| | 947 | goto ret; |
| | 948 | |
| | 949 | /* Return code shouldn't be checked. |
| | 950 | The reset CLK is needed only with tm6000. |
| | 951 | Driver should work fine even if this fails. |
| | 952 | */ |
| | 953 | do_tuner_callback(fe, XC2028_RESET_CLK, 1); |
| | 954 | |
| | 955 | msleep(10); |
| | 956 | |
| | 957 | buf[0] = 0xff & (div >> 24); |
| | 958 | buf[1] = 0xff & (div >> 16); |
| | 959 | buf[2] = 0xff & (div >> 8); |
| | 960 | buf[3] = 0xff & (div); |
| | 961 | |
| | 962 | rc = i2c_send(priv, buf, sizeof(buf)); |
| | 963 | if (rc < 0) |
| | 964 | goto ret; |
| | 965 | msleep(100); |
| | 966 | |
| | 967 | priv->frequency = freq; |
| | 968 | |
| | 969 | tuner_dbg("divisor= %02x %02x %02x %02x (freq=%d.%03d)\n", |
| | 970 | buf[0], buf[1], buf[2], buf[3], |
| | 971 | freq / 1000000, (freq % 1000000) / 1000); |
| | 972 | |
| | 973 | rc = 0; |
| | 974 | |
| | 975 | ret: |
| | 976 | mutex_unlock(&priv->lock); |
| | 977 | |
| | 978 | return rc; |
| | 979 | } |
| | 980 | |
| | 981 | static int xc2028_set_analog_freq(struct dvb_frontend *fe, |
| | 982 | struct analog_parameters *p) |
| | 983 | { |
| | 984 | struct xc2028_data *priv = fe->tuner_priv; |
| | 985 | unsigned int type=0; |
| | 986 | |
| | 987 | tuner_dbg("%s called\n", __func__); |
| | 988 | |
| | 989 | if (p->mode == V4L2_TUNER_RADIO) { |
| | 990 | type |= FM; |
| | 991 | if (priv->ctrl.input1) |
| | 992 | type |= INPUT1; |
| | 993 | return generic_set_freq(fe, (625l * p->frequency) / 10, |
| | 994 | T_ANALOG_TV, type, 0, 0); |
| | 995 | } |
| | 996 | |
| | 997 | /* if std is not defined, choose one */ |
| | 998 | if (!p->std) |
| | 999 | p->std = V4L2_STD_MN; |
| | 1000 | |
| | 1001 | /* PAL/M, PAL/N, PAL/Nc and NTSC variants should use 6MHz firmware */ |
| | 1002 | if (!(p->std & V4L2_STD_MN)) |
| | 1003 | type |= F8MHZ; |
| | 1004 | |
| | 1005 | /* Add audio hack to std mask */ |
| | 1006 | p->std |= parse_audio_std_option(); |
| | 1007 | |
| | 1008 | return generic_set_freq(fe, 62500l * p->frequency, |
| | 1009 | T_ANALOG_TV, type, p->std, 0); |
| | 1010 | } |
| | 1011 | |
| | 1012 | static int xc2028_set_params(struct dvb_frontend *fe, |
| | 1013 | struct dvb_frontend_parameters *p) |
| | 1014 | { |
| | 1015 | struct xc2028_data *priv = fe->tuner_priv; |
| | 1016 | unsigned int type=0; |
| | 1017 | fe_bandwidth_t bw = BANDWIDTH_8_MHZ; |
| | 1018 | u16 demod = 0; |
| | 1019 | |
| | 1020 | tuner_dbg("%s called\n", __func__); |
| | 1021 | |
| | 1022 | switch(fe->ops.info.type) { |
| | 1023 | case FE_OFDM: |
| | 1024 | bw = p->u.ofdm.bandwidth; |
| | 1025 | break; |
| | 1026 | case FE_QAM: |
| | 1027 | tuner_info("WARN: There are some reports that " |
| | 1028 | "QAM 6 MHz doesn't work.\n" |
| | 1029 | "If this works for you, please report by " |
| | 1030 | "e-mail to: v4l-dvb-maintainer@linuxtv.org\n"); |
| | 1031 | bw = BANDWIDTH_6_MHZ; |
| | 1032 | type |= QAM; |
| | 1033 | break; |
| | 1034 | case FE_ATSC: |
| | 1035 | bw = BANDWIDTH_6_MHZ; |
| | 1036 | /* The only ATSC firmware (at least on v2.7) is D2633 */ |
| | 1037 | type |= ATSC | D2633; |
| | 1038 | break; |
| | 1039 | /* DVB-S is not supported */ |
| | 1040 | default: |
| | 1041 | return -EINVAL; |
| | 1042 | } |
| | 1043 | |
| | 1044 | switch (bw) { |
| | 1045 | case BANDWIDTH_8_MHZ: |
| | 1046 | if (p->frequency < 470000000) |
| | 1047 | priv->ctrl.vhfbw7 = 0; |
| | 1048 | else |
| | 1049 | priv->ctrl.uhfbw8 = 1; |
| | 1050 | type |= (priv->ctrl.vhfbw7 && priv->ctrl.uhfbw8) ? DTV78 : DTV8; |
| | 1051 | type |= F8MHZ; |
| | 1052 | break; |
| | 1053 | case BANDWIDTH_7_MHZ: |
| | 1054 | if (p->frequency < 470000000) |
| | 1055 | priv->ctrl.vhfbw7 = 1; |
| | 1056 | else |
| | 1057 | priv->ctrl.uhfbw8 = 0; |
| | 1058 | type |= (priv->ctrl.vhfbw7 && priv->ctrl.uhfbw8) ? DTV78 : DTV7; |
| | 1059 | type |= F8MHZ; |
| | 1060 | break; |
| | 1061 | case BANDWIDTH_6_MHZ: |
| | 1062 | type |= DTV6; |
| | 1063 | priv->ctrl.vhfbw7 = 0; |
| | 1064 | priv->ctrl.uhfbw8 = 0; |
| | 1065 | break; |
| | 1066 | default: |
| | 1067 | tuner_err("error: bandwidth not supported.\n"); |
| | 1068 | }; |
| | 1069 | |
| | 1070 | /* |
| | 1071 | Selects between D2633 or D2620 firmware. |
| | 1072 | It doesn't make sense for ATSC, since it should be D2633 on all cases |
| | 1073 | */ |
| | 1074 | if (fe->ops.info.type != FE_ATSC) { |
| | 1075 | switch (priv->ctrl.type) { |
| | 1076 | case XC2028_D2633: |
| | 1077 | type |= D2633; |
| | 1078 | break; |
| | 1079 | case XC2028_D2620: |
| | 1080 | type |= D2620; |
| | 1081 | break; |
| | 1082 | case XC2028_AUTO: |
| | 1083 | default: |
| | 1084 | /* Zarlink seems to need D2633 */ |
| | 1085 | if (priv->ctrl.demod == XC3028_FE_ZARLINK456) |
| | 1086 | type |= D2633; |
| | 1087 | else |
| | 1088 | type |= D2620; |
| | 1089 | } |
| | 1090 | } |
| | 1091 | |
| | 1092 | /* All S-code tables need a 200kHz shift */ |
| | 1093 | if (priv->ctrl.demod) |
| | 1094 | demod = priv->ctrl.demod + 200; |
| | 1095 | |
| | 1096 | return generic_set_freq(fe, p->frequency, |
| | 1097 | T_DIGITAL_TV, type, 0, demod); |
| | 1098 | } |
| | 1099 | |
| | 1100 | static int xc2028_sleep(struct dvb_frontend *fe) |
| | 1101 | { |
| | 1102 | struct xc2028_data *priv = fe->tuner_priv; |
| | 1103 | int rc = 0; |
| | 1104 | |
| | 1105 | /* Avoid firmware reload on slow devices */ |
| | 1106 | if (no_poweroff) |
| | 1107 | return; |
| | 1108 | |
| | 1109 | tuner_dbg("Putting xc2028/3028 into poweroff mode.\n"); |
| | 1110 | |
| | 1111 | mutex_lock(&priv->lock); |
| | 1112 | |
| | 1113 | if (priv->firm_version < 0x0202) |
| | 1114 | rc = send_seq(priv, {0x00, 0x08, 0x00, 0x00}); |
| | 1115 | else |
| | 1116 | rc = send_seq(priv, {0x80, 0x08, 0x00, 0x00}); |
| | 1117 | |
| | 1118 | priv->cur_fw.type = 0; /* need firmware reload */ |
| | 1119 | |
| | 1120 | mutex_unlock(&priv->lock); |
| | 1121 | |
| | 1122 | return rc; |
| | 1123 | } |
| | 1124 | |
| | 1125 | static int xc2028_dvb_release(struct dvb_frontend *fe) |
| | 1126 | { |
| | 1127 | struct xc2028_data *priv = fe->tuner_priv; |
| | 1128 | |
| | 1129 | tuner_dbg("%s called\n", __func__); |
| | 1130 | |
| | 1131 | mutex_lock(&xc2028_list_mutex); |
| | 1132 | |
| | 1133 | /* only perform final cleanup if this is the last instance */ |
| | 1134 | if (hybrid_tuner_report_instance_count(priv) == 1) { |
| | 1135 | kfree(priv->ctrl.fname); |
| | 1136 | free_firmware(priv); |
| | 1137 | } |
| | 1138 | |
| | 1139 | if (priv) |
| | 1140 | hybrid_tuner_release_state(priv); |
| | 1141 | |
| | 1142 | mutex_unlock(&xc2028_list_mutex); |
| | 1143 | |
| | 1144 | fe->tuner_priv = NULL; |
| | 1145 | |
| | 1146 | return 0; |
| | 1147 | } |
| | 1148 | |
| | 1149 | static int xc2028_get_frequency(struct dvb_frontend *fe, u32 *frequency) |
| | 1150 | { |
| | 1151 | struct xc2028_data *priv = fe->tuner_priv; |
| | 1152 | |
| | 1153 | tuner_dbg("%s called\n", __func__); |
| | 1154 | |
| | 1155 | *frequency = priv->frequency; |
| | 1156 | |
| | 1157 | return 0; |
| | 1158 | } |
| | 1159 | |
| | 1160 | static int xc2028_set_config(struct dvb_frontend *fe, void *priv_cfg) |
| | 1161 | { |
| | 1162 | struct xc2028_data *priv = fe->tuner_priv; |
| | 1163 | struct xc2028_ctrl *p = priv_cfg; |
| | 1164 | int rc = 0; |
| | 1165 | |
| | 1166 | tuner_dbg("%s called\n", __func__); |
| | 1167 | |
| | 1168 | mutex_lock(&priv->lock); |
| | 1169 | |
| | 1170 | memcpy(&priv->ctrl, p, sizeof(priv->ctrl)); |
| | 1171 | if (priv->ctrl.max_len < 9) |
| | 1172 | priv->ctrl.max_len = 13; |
| | 1173 | |
| | 1174 | if (p->fname) { |
| | 1175 | if (priv->ctrl.fname && strcmp(p->fname, priv->ctrl.fname)) { |
| | 1176 | kfree(priv->ctrl.fname); |
| | 1177 | free_firmware(priv); |
| | 1178 | } |
| | 1179 | |
| | 1180 | priv->ctrl.fname = kstrdup(p->fname, GFP_KERNEL); |
| | 1181 | if (priv->ctrl.fname == NULL) |
| | 1182 | rc = -ENOMEM; |
| | 1183 | } |
| | 1184 | |
| | 1185 | mutex_unlock(&priv->lock); |
| | 1186 | |
| | 1187 | return rc; |
| | 1188 | } |
| | 1189 | |
| | 1190 | static const struct dvb_tuner_ops xc2028_dvb_tuner_ops = { |
| | 1191 | .info = { |
| | 1192 | .name = "Xceive XC3028", |
| | 1193 | .frequency_min = 42000000, |
| | 1194 | .frequency_max = 864000000, |
| | 1195 | .frequency_step = 50000, |
| | 1196 | }, |
| | 1197 | |
| | 1198 | .set_config = xc2028_set_config, |
| | 1199 | .set_analog_params = xc2028_set_analog_freq, |
| | 1200 | .release = xc2028_dvb_release, |
| | 1201 | .get_frequency = xc2028_get_frequency, |
| | 1202 | .get_rf_strength = xc2028_signal, |
| | 1203 | .set_params = xc2028_set_params, |
| | 1204 | .sleep = xc2028_sleep, |
| | 1205 | }; |
| | 1206 | |
| | 1207 | struct dvb_frontend *xc2028_attach(struct dvb_frontend *fe, |
| | 1208 | struct xc2028_config *cfg) |
| | 1209 | { |
| | 1210 | struct xc2028_data *priv; |
| | 1211 | int instance; |
| | 1212 | |
| | 1213 | if (debug) |
| | 1214 | printk(KERN_DEBUG "xc2028: Xcv2028/3028 init called!\n"); |
| | 1215 | |
| | 1216 | if (NULL == cfg) |
| | 1217 | return NULL; |
| | 1218 | |
| | 1219 | if (!fe) { |
| | 1220 | printk(KERN_ERR "xc2028: No frontend!\n"); |
| | 1221 | return NULL; |
| | 1222 | } |
| | 1223 | |
| | 1224 | mutex_lock(&xc2028_list_mutex); |
| | 1225 | |
| | 1226 | instance = hybrid_tuner_request_state(struct xc2028_data, priv, |
| | 1227 | hybrid_tuner_instance_list, |
| | 1228 | cfg->i2c_adap, cfg->i2c_addr, |
| | 1229 | "xc2028"); |
| | 1230 | switch (instance) { |
| | 1231 | case 0: |
| | 1232 | /* memory allocation failure */ |
| | 1233 | goto fail; |
| | 1234 | break; |
| | 1235 | case 1: |
| | 1236 | /* new tuner instance */ |
| | 1237 | priv->ctrl.max_len = 13; |
| | 1238 | |
| | 1239 | mutex_init(&priv->lock); |
| | 1240 | |
| | 1241 | fe->tuner_priv = priv; |
| | 1242 | break; |
| | 1243 | case 2: |
| | 1244 | /* existing tuner instance */ |
| | 1245 | fe->tuner_priv = priv; |
| | 1246 | break; |
| | 1247 | } |
| | 1248 | |
| | 1249 | memcpy(&fe->ops.tuner_ops, &xc2028_dvb_tuner_ops, |
| | 1250 | sizeof(xc2028_dvb_tuner_ops)); |
| | 1251 | |
| | 1252 | tuner_info("type set to %s\n", "XCeive xc2028/xc3028 tuner"); |
| | 1253 | |
| | 1254 | if (cfg->ctrl) |
| | 1255 | xc2028_set_config(fe, cfg->ctrl); |
| | 1256 | |
| | 1257 | mutex_unlock(&xc2028_list_mutex); |
| | 1258 | |
| | 1259 | return fe; |
| | 1260 | fail: |
| | 1261 | mutex_unlock(&xc2028_list_mutex); |
| | 1262 | |
| | 1263 | xc2028_dvb_release(fe); |
| | 1264 | return NULL; |
| | 1265 | } |
| | 1266 | |
| | 1267 | EXPORT_SYMBOL(xc2028_attach); |
| | 1268 | |
| | 1269 | MODULE_DESCRIPTION("Xceive xc2028/xc3028 tuner driver"); |
| | 1270 | MODULE_AUTHOR("Michel Ludwig <michel.ludwig@gmail.com>"); |
| | 1271 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>"); |
| | 1272 | MODULE_LICENSE("GPL"); |
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame_incremental