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