456 lines · c
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 baseband7 *8 * Author: Jerry Chen9 *10 * Date: Jun. 5, 200211 *12 * Functions:13 * vnt_get_frame_time - Calculate data frame transmitting time14 * vnt_get_phy_field - Calculate PhyLength, PhyService and Phy15 * Signal parameter for baseband Tx16 * vnt_vt3184_init - VIA VT3184 baseband chip init code17 *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 32static 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 43static 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 */79static 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 114struct vnt_threshold {115 u8 bb_pre_ed_rssi;116 u8 cr_201;117 u8 cr_206;118};119 120static 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 144static 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/*171 * Description: Set Antenna mode172 *173 * Parameters:174 * In:175 * priv - Device Structure176 * antenna_mode - Antenna Mode177 * Out:178 * none179 *180 * Return Value: none181 *182 */183int vnt_set_antenna_mode(struct vnt_private *priv, u8 antenna_mode)184{185 switch (antenna_mode) {186 case ANT_TXA:187 case ANT_TXB:188 break;189 case ANT_RXA:190 priv->bb_rx_conf &= 0xFC;191 break;192 case ANT_RXB:193 priv->bb_rx_conf &= 0xFE;194 priv->bb_rx_conf |= 0x02;195 break;196 }197 198 return vnt_control_out(priv, MESSAGE_TYPE_SET_ANTMD,199 (u16)antenna_mode, 0, 0, NULL);200}201 202/*203 * Description: Set Antenna mode204 *205 * Parameters:206 * In:207 * pDevice - Device Structure208 * byAntennaMode - Antenna Mode209 * Out:210 * none211 *212 * Return Value: none213 *214 */215 216int vnt_vt3184_init(struct vnt_private *priv)217{218 int ret;219 u16 length;220 u8 *addr = NULL;221 const u8 *c_addr;222 u8 data;223 224 ret = vnt_control_in(priv, MESSAGE_TYPE_READ, 0, MESSAGE_REQUEST_EEPROM,225 EEP_MAX_CONTEXT_SIZE, priv->eeprom);226 if (ret)227 goto end;228 229 priv->rf_type = priv->eeprom[EEP_OFS_RFTYPE];230 231 dev_dbg(&priv->usb->dev, "RF Type %d\n", priv->rf_type);232 233 if ((priv->rf_type == RF_AL2230) ||234 (priv->rf_type == RF_AL2230S)) {235 priv->bb_rx_conf = vnt_vt3184_al2230[10];236 length = sizeof(vnt_vt3184_al2230);237 addr = vnt_vt3184_al2230;238 239 priv->bb_vga[0] = 0x1c;240 priv->bb_vga[1] = 0x10;241 priv->bb_vga[2] = 0x0;242 priv->bb_vga[3] = 0x0;243 244 } else if ((priv->rf_type == RF_VT3226) ||245 (priv->rf_type == RF_VT3226D0)) {246 priv->bb_rx_conf = vnt_vt3184_vt3226d0[10];247 length = sizeof(vnt_vt3184_vt3226d0);248 c_addr = vnt_vt3184_vt3226d0;249 250 priv->bb_vga[0] = 0x20;251 priv->bb_vga[1] = 0x10;252 priv->bb_vga[2] = 0x0;253 priv->bb_vga[3] = 0x0;254 255 /* Fix VT3226 DFC system timing issue */256 ret = vnt_mac_reg_bits_on(priv, MAC_REG_SOFTPWRCTL2,257 SOFTPWRCTL_RFLEOPT);258 if (ret)259 goto end;260 } else {261 goto end;262 }263 264 if (addr)265 c_addr = addr;266 267 ret = vnt_control_out_blocks(priv, VNT_REG_BLOCK_SIZE,268 MESSAGE_REQUEST_BBREG, length, c_addr);269 if (ret)270 goto end;271 272 ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, 0,273 MESSAGE_REQUEST_BBAGC,274 sizeof(vnt_vt3184_agc), vnt_vt3184_agc);275 if (ret)276 goto end;277 278 if ((priv->rf_type == RF_VT3226) ||279 (priv->rf_type == RF_VT3226D0)) {280 data = (priv->rf_type == RF_VT3226D0) ? 0x11 : 0x23;281 282 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_MACREG,283 MAC_REG_ITRTMSET, data);284 if (ret)285 goto end;286 287 ret = vnt_mac_reg_bits_on(priv, MAC_REG_PAPEDELAY, BIT(0));288 if (ret)289 goto end;290 }291 292 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x04, 0x7f);293 if (ret)294 goto end;295 296 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01);297 if (ret)298 goto end;299 300 ret = vnt_rf_table_download(priv);301 if (ret)302 goto end;303 304 /* Fix for TX USB resets from vendors driver */305 ret = vnt_control_in(priv, MESSAGE_TYPE_READ, USB_REG4,306 MESSAGE_REQUEST_MEM, sizeof(data), &data);307 if (ret)308 goto end;309 310 data |= 0x2;311 312 ret = vnt_control_out(priv, MESSAGE_TYPE_WRITE, USB_REG4,313 MESSAGE_REQUEST_MEM, sizeof(data), &data);314 315end:316 return ret;317}318 319/*320 * Description: Set ShortSlotTime mode321 *322 * Parameters:323 * In:324 * priv - Device Structure325 * Out:326 * none327 *328 * Return Value: none329 *330 */331int vnt_set_short_slot_time(struct vnt_private *priv)332{333 int ret = 0;334 u8 bb_vga = 0;335 336 if (priv->short_slot_time)337 priv->bb_rx_conf &= 0xdf;338 else339 priv->bb_rx_conf |= 0x20;340 341 ret = vnt_control_in_u8(priv, MESSAGE_REQUEST_BBREG, 0xe7, &bb_vga);342 if (ret)343 return ret;344 345 if (bb_vga == priv->bb_vga[0])346 priv->bb_rx_conf |= 0x20;347 348 return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0a,349 priv->bb_rx_conf);350}351 352int vnt_set_vga_gain_offset(struct vnt_private *priv, u8 data)353{354 int ret;355 356 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xE7, data);357 if (ret)358 return ret;359 360 /* patch for 3253B0 Baseband with Cardbus module */361 if (priv->short_slot_time)362 priv->bb_rx_conf &= 0xdf; /* 1101 1111 */363 else364 priv->bb_rx_conf |= 0x20; /* 0010 0000 */365 366 return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0a,367 priv->bb_rx_conf);368}369 370/*371 * Description: vnt_set_deep_sleep372 *373 * Parameters:374 * In:375 * priv - Device Structure376 * Out:377 * none378 *379 * Return Value: none380 *381 */382int vnt_set_deep_sleep(struct vnt_private *priv)383{384 int ret = 0;385 386 /* CR12 */387 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x17);388 if (ret)389 return ret;390 391 /* CR13 */392 return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0xB9);393}394 395int vnt_exit_deep_sleep(struct vnt_private *priv)396{397 int ret = 0;398 399 /* CR12 */400 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0c, 0x00);401 if (ret)402 return ret;403 404 /* CR13 */405 return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0x0d, 0x01);406}407 408int vnt_update_pre_ed_threshold(struct vnt_private *priv, int scanning)409{410 const struct vnt_threshold *threshold = NULL;411 u8 length;412 u8 cr_201, cr_206;413 u8 ed_inx;414 int ret;415 416 switch (priv->rf_type) {417 case RF_AL2230:418 case RF_AL2230S:419 threshold = al2230_vnt_threshold;420 length = ARRAY_SIZE(al2230_vnt_threshold);421 break;422 423 case RF_VT3226:424 case RF_VT3226D0:425 threshold = vt3226_vnt_threshold;426 length = ARRAY_SIZE(vt3226_vnt_threshold);427 break;428 }429 430 if (!threshold)431 return -EINVAL;432 433 for (ed_inx = scanning ? 0 : length - 1; ed_inx > 0; ed_inx--) {434 if (priv->bb_pre_ed_rssi <= threshold[ed_inx].bb_pre_ed_rssi)435 break;436 }437 438 cr_201 = threshold[ed_inx].cr_201;439 cr_206 = threshold[ed_inx].cr_206;440 441 if (ed_inx == priv->bb_pre_ed_index && !scanning)442 return 0;443 444 priv->bb_pre_ed_index = ed_inx;445 446 dev_dbg(&priv->usb->dev, "%s bb_pre_ed_rssi %d\n",447 __func__, priv->bb_pre_ed_rssi);448 449 ret = vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xc9, cr_201);450 if (ret)451 return ret;452 453 return vnt_control_out_u8(priv, MESSAGE_REQUEST_BBREG, 0xce, cr_206);454}455 456