1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. 4 * All rights reserved. 5 * 6 * File: baseband.c 7 * 8 * Purpose: Implement functions to access baseband 9 * 10 * Author: Jerry Chen 11 * 12 * Date: Jun. 5, 2002 13 * 14 * Functions: 15 * vnt_get_frame_time - Calculate data frame transmitting time 16 * vnt_get_phy_field - Calculate PhyLength, PhyService and Phy 17 * Signal parameter for baseband Tx 18 * vnt_vt3184_init - VIA VT3184 baseband chip init code 19 * 20 * Revision History: 21 * 22 * 23 */ 24 25 #include <linux/bits.h> 26 #include <linux/errno.h> 27 #include <linux/kernel.h> 28 #include "device.h" 29 #include "mac.h" 30 #include "baseband.h" 31 #include "rf.h" 32 #include "usbpipe.h" 33 34 static const u8 vnt_vt3184_agc[] = { 35 0x00, 0x00, 0x02, 0x02, 0x04, 0x04, 0x06, 0x06, 36 0x08, 0x08, 0x0a, 0x0a, 0x0c, 0x0c, 0x0e, 0x0e, /* 0x0f */ 37 0x10, 0x10, 0x12, 0x12, 0x14, 0x14, 0x16, 0x16, 38 0x18, 0x18, 0x1a, 0x1a, 0x1c, 0x1c, 0x1e, 0x1e, /* 0x1f */ 39 0x20, 0x20, 0x22, 0x22, 0x24, 0x24, 0x26, 0x26, 40 0x28, 0x28, 0x2a, 0x2a, 0x2c, 0x2c, 0x2e, 0x2e, /* 0x2f */ 41 0x30, 0x30, 0x32, 0x32, 0x34, 0x34, 0x36, 0x36, 42 0x38, 0x38, 0x3a, 0x3a, 0x3c, 0x3c, 0x3e, 0x3e /* 0x3f */ 43 }; 44 45 static u8 vnt_vt3184_al2230[] = { 46 0x31, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 47 0x70, 0x45, 0x2a, 0x76, 0x00, 0x00, 0x80, 0x00, /* 0x0f */ 48 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 49 0x00, 0x00, 0x00, 0x8e, 0x0a, 0x00, 0x00, 0x00, /* 0x1f */ 50 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00, 51 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x0c, /* 0x2f */ 52 0x26, 0x5b, 0x00, 0x00, 0x00, 0x00, 0xaa, 0xaa, 53 0xff, 0xff, 0x79, 0x00, 0x00, 0x0b, 0x48, 0x04, /* 0x3f */ 54 0x00, 0x08, 0x00, 0x08, 0x08, 0x14, 0x05, 0x09, 55 0x00, 0x00, 0x00, 0x00, 0x09, 0x73, 0x00, 0xc5, /* 0x4f */ 56 0x00, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 57 0x00, 0xd0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5f */ 58 0xe4, 0x80, 0x00, 0x00, 0x00, 0x00, 0x98, 0x0a, 59 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, /* 0x6f */ 60 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 61 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7f */ 62 0x8c, 0x01, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 63 0x08, 0x00, 0x1f, 0xb7, 0x88, 0x47, 0xaa, 0x00, /* 0x8f */ 64 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xeb, 65 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* 0x9f */ 66 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 67 0x18, 0x00, 0x00, 0x00, 0x00, 0x15, 0x00, 0x18, /* 0xaf */ 68 0x38, 0x30, 0x00, 0x00, 0xff, 0x0f, 0xe4, 0xe2, 69 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, 0x00, 0x00, /* 0xbf */ 70 0x18, 0x20, 0x07, 0x18, 0xff, 0xff, 0x0e, 0x0a, 71 0x0e, 0x00, 0x82, 0xa7, 0x3c, 0x10, 0x30, 0x05, /* 0xcf */ 72 0x40, 0x12, 0x00, 0x00, 0x10, 0x28, 0x80, 0x2a, 73 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xdf */ 74 0x00, 0xf3, 0x00, 0x00, 0x00, 0x10, 0x00, 0x12, 75 0x00, 0xf4, 0x00, 0xff, 0x79, 0x20, 0x30, 0x05, /* 0xef */ 76 0x00, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 77 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* 0xff */ 78 }; 79 80 /* {{RobertYu:20060515, new BB setting for VT3226D0 */ 81 static const u8 vnt_vt3184_vt3226d0[] = { 82 0x31, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 83 0x70, 0x45, 0x2a, 0x76, 0x00, 0x00, 0x80, 0x00, /* 0x0f */ 84 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 85 0x00, 0x00, 0x00, 0x8e, 0x0a, 0x00, 0x00, 0x00, /* 0x1f */ 86 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x00, 87 0x00, 0x00, 0x00, 0x00, 0x00, 0x4a, 0x00, 0x0c, /* 0x2f */ 88 0x26, 0x5b, 0x00, 0x00, 0x00, 0x00, 0xaa, 0xaa, 89 0xff, 0xff, 0x79, 0x00, 0x00, 0x0b, 0x48, 0x04, /* 0x3f */ 90 0x00, 0x08, 0x00, 0x08, 0x08, 0x14, 0x05, 0x09, 91 0x00, 0x00, 0x00, 0x00, 0x09, 0x73, 0x00, 0xc5, /* 0x4f */ 92 0x00, 0x19, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 93 0x00, 0xd0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x5f */ 94 0xe4, 0x80, 0x00, 0x00, 0x00, 0x00, 0x98, 0x0a, 95 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, /* 0x6f */ 96 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 97 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x7f */ 98 0x8c, 0x01, 0x09, 0x00, 0x00, 0x00, 0x00, 0x00, 99 0x08, 0x00, 0x1f, 0xb7, 0x88, 0x47, 0xaa, 0x00, /* 0x8f */ 100 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xeb, 101 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* 0x9f */ 102 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 103 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, /* 0xaf */ 104 0x38, 0x30, 0x00, 0x00, 0xff, 0x0f, 0xe4, 0xe2, 105 0x00, 0x00, 0x00, 0x03, 0x01, 0x00, 0x00, 0x00, /* 0xbf */ 106 0x18, 0x20, 0x07, 0x18, 0xff, 0xff, 0x10, 0x0a, 107 0x0e, 0x00, 0x84, 0xa7, 0x3c, 0x10, 0x24, 0x05, /* 0xcf */ 108 0x40, 0x12, 0x00, 0x00, 0x10, 0x28, 0x80, 0x2a, 109 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xdf */ 110 0x00, 0xf3, 0x00, 0x00, 0x00, 0x10, 0x00, 0x10, 111 0x00, 0xf4, 0x00, 0xff, 0x79, 0x20, 0x30, 0x08, /* 0xef */ 112 0x00, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 113 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 /* 0xff */ 114 }; 115 116 struct vnt_threshold { 117 u8 bb_pre_ed_rssi; 118 u8 cr_201; 119 u8 cr_206; 120 }; 121 122 static const struct vnt_threshold al2230_vnt_threshold[] = { 123 {0, 0x00, 0x30}, /* Max sensitivity */ 124 {68, 0x00, 0x36}, 125 {67, 0x00, 0x43}, 126 {66, 0x00, 0x51}, 127 {65, 0x00, 0x62}, 128 {64, 0x00, 0x79}, 129 {63, 0x00, 0x93}, 130 {62, 0x00, 0xb9}, 131 {61, 0x00, 0xe3}, 132 {60, 0x01, 0x18}, 133 {59, 0x01, 0x54}, 134 {58, 0x01, 0xa0}, 135 {57, 0x02, 0x20}, 136 {56, 0x02, 0xa0}, 137 {55, 0x03, 0x00}, 138 {53, 0x06, 0x00}, 139 {51, 0x09, 0x00}, 140 {49, 0x0e, 0x00}, 141 {47, 0x15, 0x00}, 142 {46, 0x1a, 0x00}, 143 {45, 0xff, 0x00} 144 }; 145 146 static const struct vnt_threshold vt3226_vnt_threshold[] = { 147 {0, 0x00, 0x24}, /* Max sensitivity */ 148 {68, 0x00, 0x2d}, 149 {67, 0x00, 0x36}, 150 {66, 0x00, 0x43}, 151 {65, 0x00, 0x52}, 152 {64, 0x00, 0x68}, 153 {63, 0x00, 0x80}, 154 {62, 0x00, 0x9c}, 155 {61, 0x00, 0xc0}, 156 {60, 0x00, 0xea}, 157 {59, 0x01, 0x30}, 158 {58, 0x01, 0x70}, 159 {57, 0x01, 0xb0}, 160 {56, 0x02, 0x30}, 161 {55, 0x02, 0xc0}, 162 {53, 0x04, 0x00}, 163 {51, 0x07, 0x00}, 164 {49, 0x0a, 0x00}, 165 {47, 0x11, 0x00}, 166 {45, 0x18, 0x00}, 167 {43, 0x26, 0x00}, 168 {42, 0x36, 0x00}, 169 {41, 0xff, 0x00} 170 }; 171 172 static const struct vnt_threshold vt3342_vnt_threshold[] = { 173 {0, 0x00, 0x38}, /* Max sensitivity */ 174 {66, 0x00, 0x43}, 175 {65, 0x00, 0x52}, 176 {64, 0x00, 0x68}, 177 {63, 0x00, 0x80}, 178 {62, 0x00, 0x9c}, 179 {61, 0x00, 0xc0}, 180 {60, 0x00, 0xea}, 181 {59, 0x01, 0x30}, 182 {58, 0x01, 0x70}, 183 {57, 0x01, 0xb0}, 184 {56, 0x02, 0x30}, 185 {55, 0x02, 0xc0}, 186 {53, 0x04, 0x00}, 187 {51, 0x07, 0x00}, 188 {49, 0x0a, 0x00}, 189 {47, 0x11, 0x00}, 190 {45, 0x18, 0x00}, 191 {43, 0x26, 0x00}, 192 {42, 0x36, 0x00}, 193 {41, 0xff, 0x00} 194 }; 195 196 /* 197 * Description: Set Antenna mode 198 * 199 * Parameters: 200 * In: 201 * priv - Device Structure 202 * antenna_mode - Antenna Mode 203 * Out: 204 * none 205 * 206 * Return Value: none 207 * 208 */ 209 int vnt_set_antenna_mode(struct vnt_private *priv, u8 antenna_mode) 210 { 211 switch (antenna_mode) { 212 case ANT_TXA: 213 case ANT_TXB: 214 break; 215 case ANT_RXA: 216 priv->bb_rx_conf &= 0xFC; 217 break; 218 case ANT_RXB: 219 priv->bb_rx_conf &= 0xFE; 220 priv->bb_rx_conf |= 0x02; 221 break; 222 } 223 224 return vnt_control_out(priv, MESSAGE_TYPE_SET_ANTMD, 225 (u16)antenna_mode, 0, 0, NULL); 226 } 227 228 /* 229 * Description: Set Antenna mode 230 * 231 * Parameters: 232 * In: 233 * pDevice - Device Structure 234 * byAntennaMode - Antenna Mode 235 * Out: 236 * none 237 * 238 * Return Value: none 239 * 240 */ 241 242 int vnt_vt3184_init(struct vnt_private *priv) 243 { 244 int ret; 245 u16 length; 246 u8 *addr = NULL; 247 const u8 *c_addr; 248 u8 data; 249 250 ret = vnt_control_in(priv, MESSAGE_TYPE_READ, 0, MESSAGE_REQUEST_EEPROM, 251 EEP_MAX_CONTEXT_SIZE, priv->eeprom); 252 if (ret) 253 goto end; 254 255 priv->rf_type = priv->eeprom[EEP_OFS_RFTYPE]; 256 257 dev_dbg(&priv->usb->dev, "RF Type %d\n", priv->rf_type); 258 259 if ((priv->rf_type == RF_AL2230) || 260 (priv->rf_type == RF_AL2230S) || 261 (priv->rf_type == RF_AIROHA7230)) { 262 priv->bb_rx_conf = vnt_vt3184_al2230[10]; 263 length = sizeof(vnt_vt3184_al2230); 264 addr = vnt_vt3184_al2230; 265 266 if (priv->rf_type == RF_AIROHA7230) 267 addr[0xd7] = 0x06; 268 269 priv->bb_vga[0] = 0x1c; 270 priv->bb_vga[1] = 0x10; 271 priv->bb_vga[2] = 0x0; 272 priv->bb_vga[3] = 0x0; 273 274 } else if ((priv->rf_type == RF_VT3226) || 275 (priv->rf_type == RF_VT3226D0) || 276 (priv->rf_type == RF_VT3342A0)) { 277 priv->bb_rx_conf = vnt_vt3184_vt3226d0[10]; 278 length = sizeof(vnt_vt3184_vt3226d0); 279 c_addr = vnt_vt3184_vt3226d0; 280 281 priv->bb_vga[0] = 0x20; 282 priv->bb_vga[1] = 0x10; 283 priv->bb_vga[2] = 0x0; 284 priv->bb_vga[3] = 0x0; 285 286 /* Fix VT3226 DFC system timing issue */ 287 ret = vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL2, 288 SOFTPWRCTL_RFLEOPT); 289 if (ret) 290 goto end; 291 } else { 292 goto end; 293 } 294 295 if (addr) 296 c_addr = addr; 297 298 ret = vnt_control_out_blocks(priv, VNT_REG_BLOCK_SIZE, 299 MESSAGE_REQUEST_BBREG, length, c_addr); 300 if (ret) 301 goto end; 302 303 ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0, 304 MESSAGE_REQUEST_BBAGC, 305 sizeof(vnt_vt3184_agc), vnt_vt3184_agc); 306 if (ret) 307 goto end; 308 309 if ((priv->rf_type == RF_VT3226) || 310 (priv->rf_type == RF_VT3342A0) || 311 (priv->rf_type == RF_VT3226D0)) { 312 data = (priv->rf_type == RF_VT3226D0) ? 0x11 : 0x23; 313 314 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG, 315 MAC_REG_ITRTMSET, data); 316 if (ret) 317 goto end; 318 319 ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, BIT(0)); 320 if (ret) 321 goto end; 322 } 323 324 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x04, 0x7f); 325 if (ret) 326 goto end; 327 328 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01); 329 if (ret) 330 goto end; 331 332 ret = vnt_rf_table_download(priv); 333 if (ret) 334 goto end; 335 336 /* Fix for TX USB resets from vendors driver */ 337 ret = vnt_control_in(priv, MESSAGE_TYPE_READ, USB_REG4, 338 MESSAGE_REQUEST_MEM, sizeof(data), &data); 339 if (ret) 340 goto end; 341 342 data |= 0x2; 343 344 ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, USB_REG4, 345 MESSAGE_REQUEST_MEM, sizeof(data), &data); 346 347 end: 348 return ret; 349 } 350 351 /* 352 * Description: Set ShortSlotTime mode 353 * 354 * Parameters: 355 * In: 356 * priv - Device Structure 357 * Out: 358 * none 359 * 360 * Return Value: none 361 * 362 */ 363 int vnt_set_short_slot_time(struct vnt_private *priv) 364 { 365 int ret = 0; 366 u8 bb_vga = 0; 367 368 if (priv->short_slot_time) 369 priv->bb_rx_conf &= 0xdf; 370 else 371 priv->bb_rx_conf |= 0x20; 372 373 ret = vnt_control_in_u8(priv, MESSAGE_REQUEST_BBREG, 0xe7, &bb_vga); 374 if (ret) 375 return ret; 376 377 if (bb_vga == priv->bb_vga[0]) 378 priv->bb_rx_conf |= 0x20; 379 380 return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0a, 381 priv->bb_rx_conf); 382 } 383 384 int vnt_set_vga_gain_offset(struct vnt_private *priv, u8 data) 385 { 386 int ret; 387 388 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xE7, data); 389 if (ret) 390 return ret; 391 392 /* patch for 3253B0 Baseband with Cardbus module */ 393 if (priv->short_slot_time) 394 priv->bb_rx_conf &= 0xdf; /* 1101 1111 */ 395 else 396 priv->bb_rx_conf |= 0x20; /* 0010 0000 */ 397 398 return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0a, 399 priv->bb_rx_conf); 400 } 401 402 /* 403 * Description: vnt_set_deep_sleep 404 * 405 * Parameters: 406 * In: 407 * priv - Device Structure 408 * Out: 409 * none 410 * 411 * Return Value: none 412 * 413 */ 414 int vnt_set_deep_sleep(struct vnt_private *priv) 415 { 416 int ret = 0; 417 418 /* CR12 */ 419 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x17); 420 if (ret) 421 return ret; 422 423 /* CR13 */ 424 return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0xB9); 425 } 426 427 int vnt_exit_deep_sleep(struct vnt_private *priv) 428 { 429 int ret = 0; 430 431 /* CR12 */ 432 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x00); 433 if (ret) 434 return ret; 435 436 /* CR13 */ 437 return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01); 438 } 439 440 int vnt_update_pre_ed_threshold(struct vnt_private *priv, int scanning) 441 { 442 const struct vnt_threshold *threshold = NULL; 443 u8 length; 444 u8 cr_201, cr_206; 445 u8 ed_inx; 446 int ret; 447 448 switch (priv->rf_type) { 449 case RF_AL2230: 450 case RF_AL2230S: 451 case RF_AIROHA7230: 452 threshold = al2230_vnt_threshold; 453 length = ARRAY_SIZE(al2230_vnt_threshold); 454 break; 455 456 case RF_VT3226: 457 case RF_VT3226D0: 458 threshold = vt3226_vnt_threshold; 459 length = ARRAY_SIZE(vt3226_vnt_threshold); 460 break; 461 462 case RF_VT3342A0: 463 threshold = vt3342_vnt_threshold; 464 length = ARRAY_SIZE(vt3342_vnt_threshold); 465 break; 466 } 467 468 if (!threshold) 469 return -EINVAL; 470 471 for (ed_inx = scanning ? 0 : length - 1; ed_inx > 0; ed_inx--) { 472 if (priv->bb_pre_ed_rssi <= threshold[ed_inx].bb_pre_ed_rssi) 473 break; 474 } 475 476 cr_201 = threshold[ed_inx].cr_201; 477 cr_206 = threshold[ed_inx].cr_206; 478 479 if (ed_inx == priv->bb_pre_ed_index && !scanning) 480 return 0; 481 482 priv->bb_pre_ed_index = ed_inx; 483 484 dev_dbg(&priv->usb->dev, "%s bb_pre_ed_rssi %d\n", 485 __func__, priv->bb_pre_ed_rssi); 486 487 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xc9, cr_201); 488 if (ret) 489 return ret; 490 491 return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xce, cr_206); 492 } 493 494