1 /* 2 * Linux device driver for RTL8187 3 * 4 * Copyright 2007 Michael Wu <flamingice@sourmilk.net> 5 * Copyright 2007 Andrea Merello <andrea.merello@gmail.com> 6 * 7 * Based on the r8187 driver, which is: 8 * Copyright 2005 Andrea Merello <andrea.merello@gmail.com>, et al. 9 * 10 * The driver was extended to the RTL8187B in 2008 by: 11 * Herton Ronaldo Krzesinski <herton@mandriva.com.br> 12 * Hin-Tak Leung <htl10@users.sourceforge.net> 13 * Larry Finger <Larry.Finger@lwfinger.net> 14 * 15 * Magic delays and register offsets below are taken from the original 16 * r8187 driver sources. Thanks to Realtek for their support! 17 * 18 * This program is free software; you can redistribute it and/or modify 19 * it under the terms of the GNU General Public License version 2 as 20 * published by the Free Software Foundation. 21 */ 22 23 #include <linux/usb.h> 24 #include <linux/slab.h> 25 #include <linux/delay.h> 26 #include <linux/etherdevice.h> 27 #include <linux/eeprom_93cx6.h> 28 #include <linux/module.h> 29 #include <net/mac80211.h> 30 31 #include "rtl8187.h" 32 #include "rtl8225.h" 33 #ifdef CONFIG_RTL8187_LEDS 34 #include "leds.h" 35 #endif 36 #include "rfkill.h" 37 38 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>"); 39 MODULE_AUTHOR("Andrea Merello <andrea.merello@gmail.com>"); 40 MODULE_AUTHOR("Herton Ronaldo Krzesinski <herton@mandriva.com.br>"); 41 MODULE_AUTHOR("Hin-Tak Leung <htl10@users.sourceforge.net>"); 42 MODULE_AUTHOR("Larry Finger <Larry.Finger@lwfinger.net>"); 43 MODULE_DESCRIPTION("RTL8187/RTL8187B USB wireless driver"); 44 MODULE_LICENSE("GPL"); 45 46 static const struct usb_device_id rtl8187_table[] = { 47 /* Asus */ 48 {USB_DEVICE(0x0b05, 0x171d), .driver_info = DEVICE_RTL8187}, 49 /* Belkin */ 50 {USB_DEVICE(0x050d, 0x705e), .driver_info = DEVICE_RTL8187B}, 51 /* Realtek */ 52 {USB_DEVICE(0x0bda, 0x8187), .driver_info = DEVICE_RTL8187}, 53 {USB_DEVICE(0x0bda, 0x8189), .driver_info = DEVICE_RTL8187B}, 54 {USB_DEVICE(0x0bda, 0x8197), .driver_info = DEVICE_RTL8187B}, 55 {USB_DEVICE(0x0bda, 0x8198), .driver_info = DEVICE_RTL8187B}, 56 /* Surecom */ 57 {USB_DEVICE(0x0769, 0x11F2), .driver_info = DEVICE_RTL8187}, 58 /* Logitech */ 59 {USB_DEVICE(0x0789, 0x010C), .driver_info = DEVICE_RTL8187}, 60 /* Netgear */ 61 {USB_DEVICE(0x0846, 0x6100), .driver_info = DEVICE_RTL8187}, 62 {USB_DEVICE(0x0846, 0x6a00), .driver_info = DEVICE_RTL8187}, 63 {USB_DEVICE(0x0846, 0x4260), .driver_info = DEVICE_RTL8187B}, 64 /* HP */ 65 {USB_DEVICE(0x03f0, 0xca02), .driver_info = DEVICE_RTL8187}, 66 /* Sitecom */ 67 {USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187}, 68 {USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B}, 69 {USB_DEVICE(0x0df6, 0x0029), .driver_info = DEVICE_RTL8187B}, 70 /* Sphairon Access Systems GmbH */ 71 {USB_DEVICE(0x114B, 0x0150), .driver_info = DEVICE_RTL8187}, 72 /* Dick Smith Electronics */ 73 {USB_DEVICE(0x1371, 0x9401), .driver_info = DEVICE_RTL8187}, 74 /* Abocom */ 75 {USB_DEVICE(0x13d1, 0xabe6), .driver_info = DEVICE_RTL8187}, 76 /* Qcom */ 77 {USB_DEVICE(0x18E8, 0x6232), .driver_info = DEVICE_RTL8187}, 78 /* AirLive */ 79 {USB_DEVICE(0x1b75, 0x8187), .driver_info = DEVICE_RTL8187}, 80 /* Linksys */ 81 {USB_DEVICE(0x1737, 0x0073), .driver_info = DEVICE_RTL8187B}, 82 {} 83 }; 84 85 MODULE_DEVICE_TABLE(usb, rtl8187_table); 86 87 static const struct ieee80211_rate rtl818x_rates[] = { 88 { .bitrate = 10, .hw_value = 0, }, 89 { .bitrate = 20, .hw_value = 1, }, 90 { .bitrate = 55, .hw_value = 2, }, 91 { .bitrate = 110, .hw_value = 3, }, 92 { .bitrate = 60, .hw_value = 4, }, 93 { .bitrate = 90, .hw_value = 5, }, 94 { .bitrate = 120, .hw_value = 6, }, 95 { .bitrate = 180, .hw_value = 7, }, 96 { .bitrate = 240, .hw_value = 8, }, 97 { .bitrate = 360, .hw_value = 9, }, 98 { .bitrate = 480, .hw_value = 10, }, 99 { .bitrate = 540, .hw_value = 11, }, 100 }; 101 102 static const struct ieee80211_channel rtl818x_channels[] = { 103 { .center_freq = 2412 }, 104 { .center_freq = 2417 }, 105 { .center_freq = 2422 }, 106 { .center_freq = 2427 }, 107 { .center_freq = 2432 }, 108 { .center_freq = 2437 }, 109 { .center_freq = 2442 }, 110 { .center_freq = 2447 }, 111 { .center_freq = 2452 }, 112 { .center_freq = 2457 }, 113 { .center_freq = 2462 }, 114 { .center_freq = 2467 }, 115 { .center_freq = 2472 }, 116 { .center_freq = 2484 }, 117 }; 118 119 static void rtl8187_iowrite_async_cb(struct urb *urb) 120 { 121 kfree(urb->context); 122 } 123 124 static void rtl8187_iowrite_async(struct rtl8187_priv *priv, __le16 addr, 125 void *data, u16 len) 126 { 127 struct usb_ctrlrequest *dr; 128 struct urb *urb; 129 struct rtl8187_async_write_data { 130 u8 data[4]; 131 struct usb_ctrlrequest dr; 132 } *buf; 133 int rc; 134 135 buf = kmalloc(sizeof(*buf), GFP_ATOMIC); 136 if (!buf) 137 return; 138 139 urb = usb_alloc_urb(0, GFP_ATOMIC); 140 if (!urb) { 141 kfree(buf); 142 return; 143 } 144 145 dr = &buf->dr; 146 147 dr->bRequestType = RTL8187_REQT_WRITE; 148 dr->bRequest = RTL8187_REQ_SET_REG; 149 dr->wValue = addr; 150 dr->wIndex = 0; 151 dr->wLength = cpu_to_le16(len); 152 153 memcpy(buf, data, len); 154 155 usb_fill_control_urb(urb, priv->udev, usb_sndctrlpipe(priv->udev, 0), 156 (unsigned char *)dr, buf, len, 157 rtl8187_iowrite_async_cb, buf); 158 usb_anchor_urb(urb, &priv->anchored); 159 rc = usb_submit_urb(urb, GFP_ATOMIC); 160 if (rc < 0) { 161 kfree(buf); 162 usb_unanchor_urb(urb); 163 } 164 usb_free_urb(urb); 165 } 166 167 static inline void rtl818x_iowrite32_async(struct rtl8187_priv *priv, 168 __le32 *addr, u32 val) 169 { 170 __le32 buf = cpu_to_le32(val); 171 172 rtl8187_iowrite_async(priv, cpu_to_le16((unsigned long)addr), 173 &buf, sizeof(buf)); 174 } 175 176 void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data) 177 { 178 struct rtl8187_priv *priv = dev->priv; 179 180 data <<= 8; 181 data |= addr | 0x80; 182 183 rtl818x_iowrite8(priv, &priv->map->PHY[3], (data >> 24) & 0xFF); 184 rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF); 185 rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF); 186 rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF); 187 } 188 189 static void rtl8187_tx_cb(struct urb *urb) 190 { 191 struct sk_buff *skb = (struct sk_buff *)urb->context; 192 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 193 struct ieee80211_hw *hw = info->rate_driver_data[0]; 194 struct rtl8187_priv *priv = hw->priv; 195 196 skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) : 197 sizeof(struct rtl8187_tx_hdr)); 198 ieee80211_tx_info_clear_status(info); 199 200 if (!(urb->status) && !(info->flags & IEEE80211_TX_CTL_NO_ACK)) { 201 if (priv->is_rtl8187b) { 202 skb_queue_tail(&priv->b_tx_status.queue, skb); 203 204 /* queue is "full", discard last items */ 205 while (skb_queue_len(&priv->b_tx_status.queue) > 5) { 206 struct sk_buff *old_skb; 207 208 dev_dbg(&priv->udev->dev, 209 "transmit status queue full\n"); 210 211 old_skb = skb_dequeue(&priv->b_tx_status.queue); 212 ieee80211_tx_status_irqsafe(hw, old_skb); 213 } 214 return; 215 } else { 216 info->flags |= IEEE80211_TX_STAT_ACK; 217 } 218 } 219 if (priv->is_rtl8187b) 220 ieee80211_tx_status_irqsafe(hw, skb); 221 else { 222 /* Retry information for the RTI8187 is only available by 223 * reading a register in the device. We are in interrupt mode 224 * here, thus queue the skb and finish on a work queue. */ 225 skb_queue_tail(&priv->b_tx_status.queue, skb); 226 ieee80211_queue_delayed_work(hw, &priv->work, 0); 227 } 228 } 229 230 static void rtl8187_tx(struct ieee80211_hw *dev, 231 struct ieee80211_tx_control *control, 232 struct sk_buff *skb) 233 { 234 struct rtl8187_priv *priv = dev->priv; 235 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 236 struct ieee80211_hdr *tx_hdr = (struct ieee80211_hdr *)(skb->data); 237 unsigned int ep; 238 void *buf; 239 struct urb *urb; 240 __le16 rts_dur = 0; 241 u32 flags; 242 int rc; 243 244 urb = usb_alloc_urb(0, GFP_ATOMIC); 245 if (!urb) { 246 kfree_skb(skb); 247 return; 248 } 249 250 flags = skb->len; 251 flags |= RTL818X_TX_DESC_FLAG_NO_ENC; 252 253 flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24; 254 if (ieee80211_has_morefrags(tx_hdr->frame_control)) 255 flags |= RTL818X_TX_DESC_FLAG_MOREFRAG; 256 257 /* HW will perform RTS-CTS when only RTS flags is set. 258 * HW will perform CTS-to-self when both RTS and CTS flags are set. 259 * RTS rate and RTS duration will be used also for CTS-to-self. 260 */ 261 if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { 262 flags |= RTL818X_TX_DESC_FLAG_RTS; 263 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; 264 rts_dur = ieee80211_rts_duration(dev, priv->vif, 265 skb->len, info); 266 } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { 267 flags |= RTL818X_TX_DESC_FLAG_RTS | RTL818X_TX_DESC_FLAG_CTS; 268 flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; 269 rts_dur = ieee80211_ctstoself_duration(dev, priv->vif, 270 skb->len, info); 271 } 272 273 if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { 274 if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) 275 priv->seqno += 0x10; 276 tx_hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); 277 tx_hdr->seq_ctrl |= cpu_to_le16(priv->seqno); 278 } 279 280 if (!priv->is_rtl8187b) { 281 struct rtl8187_tx_hdr *hdr = skb_push(skb, sizeof(*hdr)); 282 hdr->flags = cpu_to_le32(flags); 283 hdr->len = 0; 284 hdr->rts_duration = rts_dur; 285 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8); 286 buf = hdr; 287 288 ep = 2; 289 } else { 290 /* fc needs to be calculated before skb_push() */ 291 unsigned int epmap[4] = { 6, 7, 5, 4 }; 292 u16 fc = le16_to_cpu(tx_hdr->frame_control); 293 294 struct rtl8187b_tx_hdr *hdr = skb_push(skb, sizeof(*hdr)); 295 struct ieee80211_rate *txrate = 296 ieee80211_get_tx_rate(dev, info); 297 memset(hdr, 0, sizeof(*hdr)); 298 hdr->flags = cpu_to_le32(flags); 299 hdr->rts_duration = rts_dur; 300 hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8); 301 hdr->tx_duration = 302 ieee80211_generic_frame_duration(dev, priv->vif, 303 info->band, 304 skb->len, txrate); 305 buf = hdr; 306 307 if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) 308 ep = 12; 309 else 310 ep = epmap[skb_get_queue_mapping(skb)]; 311 } 312 313 info->rate_driver_data[0] = dev; 314 info->rate_driver_data[1] = urb; 315 316 usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep), 317 buf, skb->len, rtl8187_tx_cb, skb); 318 urb->transfer_flags |= URB_ZERO_PACKET; 319 usb_anchor_urb(urb, &priv->anchored); 320 rc = usb_submit_urb(urb, GFP_ATOMIC); 321 if (rc < 0) { 322 usb_unanchor_urb(urb); 323 kfree_skb(skb); 324 } 325 usb_free_urb(urb); 326 } 327 328 static void rtl8187_rx_cb(struct urb *urb) 329 { 330 struct sk_buff *skb = (struct sk_buff *)urb->context; 331 struct rtl8187_rx_info *info = (struct rtl8187_rx_info *)skb->cb; 332 struct ieee80211_hw *dev = info->dev; 333 struct rtl8187_priv *priv = dev->priv; 334 struct ieee80211_rx_status rx_status = { 0 }; 335 int rate, signal; 336 u32 flags; 337 unsigned long f; 338 339 spin_lock_irqsave(&priv->rx_queue.lock, f); 340 __skb_unlink(skb, &priv->rx_queue); 341 spin_unlock_irqrestore(&priv->rx_queue.lock, f); 342 skb_put(skb, urb->actual_length); 343 344 if (unlikely(urb->status)) { 345 dev_kfree_skb_irq(skb); 346 return; 347 } 348 349 if (!priv->is_rtl8187b) { 350 struct rtl8187_rx_hdr *hdr = 351 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr)); 352 flags = le32_to_cpu(hdr->flags); 353 /* As with the RTL8187B below, the AGC is used to calculate 354 * signal strength. In this case, the scaling 355 * constants are derived from the output of p54usb. 356 */ 357 signal = -4 - ((27 * hdr->agc) >> 6); 358 rx_status.antenna = (hdr->signal >> 7) & 1; 359 rx_status.mactime = le64_to_cpu(hdr->mac_time); 360 } else { 361 struct rtl8187b_rx_hdr *hdr = 362 (typeof(hdr))(skb_tail_pointer(skb) - sizeof(*hdr)); 363 /* The Realtek datasheet for the RTL8187B shows that the RX 364 * header contains the following quantities: signal quality, 365 * RSSI, AGC, the received power in dB, and the measured SNR. 366 * In testing, none of these quantities show qualitative 367 * agreement with AP signal strength, except for the AGC, 368 * which is inversely proportional to the strength of the 369 * signal. In the following, the signal strength 370 * is derived from the AGC. The arbitrary scaling constants 371 * are chosen to make the results close to the values obtained 372 * for a BCM4312 using b43 as the driver. The noise is ignored 373 * for now. 374 */ 375 flags = le32_to_cpu(hdr->flags); 376 signal = 14 - hdr->agc / 2; 377 rx_status.antenna = (hdr->rssi >> 7) & 1; 378 rx_status.mactime = le64_to_cpu(hdr->mac_time); 379 } 380 381 rx_status.signal = signal; 382 priv->signal = signal; 383 rate = (flags >> 20) & 0xF; 384 skb_trim(skb, flags & 0x0FFF); 385 rx_status.rate_idx = rate; 386 rx_status.freq = dev->conf.chandef.chan->center_freq; 387 rx_status.band = dev->conf.chandef.chan->band; 388 rx_status.flag |= RX_FLAG_MACTIME_START; 389 if (flags & RTL818X_RX_DESC_FLAG_SPLCP) 390 rx_status.enc_flags |= RX_ENC_FLAG_SHORTPRE; 391 if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR) 392 rx_status.flag |= RX_FLAG_FAILED_FCS_CRC; 393 memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); 394 ieee80211_rx_irqsafe(dev, skb); 395 396 skb = dev_alloc_skb(RTL8187_MAX_RX); 397 if (unlikely(!skb)) { 398 /* TODO check rx queue length and refill *somewhere* */ 399 return; 400 } 401 402 info = (struct rtl8187_rx_info *)skb->cb; 403 info->urb = urb; 404 info->dev = dev; 405 urb->transfer_buffer = skb_tail_pointer(skb); 406 urb->context = skb; 407 skb_queue_tail(&priv->rx_queue, skb); 408 409 usb_anchor_urb(urb, &priv->anchored); 410 if (usb_submit_urb(urb, GFP_ATOMIC)) { 411 usb_unanchor_urb(urb); 412 skb_unlink(skb, &priv->rx_queue); 413 dev_kfree_skb_irq(skb); 414 } 415 } 416 417 static int rtl8187_init_urbs(struct ieee80211_hw *dev) 418 { 419 struct rtl8187_priv *priv = dev->priv; 420 struct urb *entry = NULL; 421 struct sk_buff *skb; 422 struct rtl8187_rx_info *info; 423 int ret = 0; 424 425 while (skb_queue_len(&priv->rx_queue) < 32) { 426 skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL); 427 if (!skb) { 428 ret = -ENOMEM; 429 goto err; 430 } 431 entry = usb_alloc_urb(0, GFP_KERNEL); 432 if (!entry) { 433 ret = -ENOMEM; 434 goto err; 435 } 436 usb_fill_bulk_urb(entry, priv->udev, 437 usb_rcvbulkpipe(priv->udev, 438 priv->is_rtl8187b ? 3 : 1), 439 skb_tail_pointer(skb), 440 RTL8187_MAX_RX, rtl8187_rx_cb, skb); 441 info = (struct rtl8187_rx_info *)skb->cb; 442 info->urb = entry; 443 info->dev = dev; 444 skb_queue_tail(&priv->rx_queue, skb); 445 usb_anchor_urb(entry, &priv->anchored); 446 ret = usb_submit_urb(entry, GFP_KERNEL); 447 usb_put_urb(entry); 448 if (ret) { 449 skb_unlink(skb, &priv->rx_queue); 450 usb_unanchor_urb(entry); 451 goto err; 452 } 453 } 454 return ret; 455 456 err: 457 kfree_skb(skb); 458 usb_kill_anchored_urbs(&priv->anchored); 459 return ret; 460 } 461 462 static void rtl8187b_status_cb(struct urb *urb) 463 { 464 struct ieee80211_hw *hw = (struct ieee80211_hw *)urb->context; 465 struct rtl8187_priv *priv = hw->priv; 466 u64 val; 467 unsigned int cmd_type; 468 469 if (unlikely(urb->status)) 470 return; 471 472 /* 473 * Read from status buffer: 474 * 475 * bits [30:31] = cmd type: 476 * - 0 indicates tx beacon interrupt 477 * - 1 indicates tx close descriptor 478 * 479 * In the case of tx beacon interrupt: 480 * [0:9] = Last Beacon CW 481 * [10:29] = reserved 482 * [30:31] = 00b 483 * [32:63] = Last Beacon TSF 484 * 485 * If it's tx close descriptor: 486 * [0:7] = Packet Retry Count 487 * [8:14] = RTS Retry Count 488 * [15] = TOK 489 * [16:27] = Sequence No 490 * [28] = LS 491 * [29] = FS 492 * [30:31] = 01b 493 * [32:47] = unused (reserved?) 494 * [48:63] = MAC Used Time 495 */ 496 val = le64_to_cpu(priv->b_tx_status.buf); 497 498 cmd_type = (val >> 30) & 0x3; 499 if (cmd_type == 1) { 500 unsigned int pkt_rc, seq_no; 501 bool tok; 502 struct sk_buff *skb; 503 struct ieee80211_hdr *ieee80211hdr; 504 unsigned long flags; 505 506 pkt_rc = val & 0xFF; 507 tok = val & (1 << 15); 508 seq_no = (val >> 16) & 0xFFF; 509 510 spin_lock_irqsave(&priv->b_tx_status.queue.lock, flags); 511 skb_queue_reverse_walk(&priv->b_tx_status.queue, skb) { 512 ieee80211hdr = (struct ieee80211_hdr *)skb->data; 513 514 /* 515 * While testing, it was discovered that the seq_no 516 * doesn't actually contains the sequence number. 517 * Instead of returning just the 12 bits of sequence 518 * number, hardware is returning entire sequence control 519 * (fragment number plus sequence number) in a 12 bit 520 * only field overflowing after some time. As a 521 * workaround, just consider the lower bits, and expect 522 * it's unlikely we wrongly ack some sent data 523 */ 524 if ((le16_to_cpu(ieee80211hdr->seq_ctrl) 525 & 0xFFF) == seq_no) 526 break; 527 } 528 if (skb != (struct sk_buff *) &priv->b_tx_status.queue) { 529 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 530 531 __skb_unlink(skb, &priv->b_tx_status.queue); 532 if (tok) 533 info->flags |= IEEE80211_TX_STAT_ACK; 534 info->status.rates[0].count = pkt_rc + 1; 535 536 ieee80211_tx_status_irqsafe(hw, skb); 537 } 538 spin_unlock_irqrestore(&priv->b_tx_status.queue.lock, flags); 539 } 540 541 usb_anchor_urb(urb, &priv->anchored); 542 if (usb_submit_urb(urb, GFP_ATOMIC)) 543 usb_unanchor_urb(urb); 544 } 545 546 static int rtl8187b_init_status_urb(struct ieee80211_hw *dev) 547 { 548 struct rtl8187_priv *priv = dev->priv; 549 struct urb *entry; 550 int ret = 0; 551 552 entry = usb_alloc_urb(0, GFP_KERNEL); 553 if (!entry) 554 return -ENOMEM; 555 556 usb_fill_bulk_urb(entry, priv->udev, usb_rcvbulkpipe(priv->udev, 9), 557 &priv->b_tx_status.buf, sizeof(priv->b_tx_status.buf), 558 rtl8187b_status_cb, dev); 559 560 usb_anchor_urb(entry, &priv->anchored); 561 ret = usb_submit_urb(entry, GFP_KERNEL); 562 if (ret) 563 usb_unanchor_urb(entry); 564 usb_free_urb(entry); 565 566 return ret; 567 } 568 569 static void rtl8187_set_anaparam(struct rtl8187_priv *priv, bool rfon) 570 { 571 u32 anaparam, anaparam2; 572 u8 anaparam3, reg; 573 574 if (!priv->is_rtl8187b) { 575 if (rfon) { 576 anaparam = RTL8187_RTL8225_ANAPARAM_ON; 577 anaparam2 = RTL8187_RTL8225_ANAPARAM2_ON; 578 } else { 579 anaparam = RTL8187_RTL8225_ANAPARAM_OFF; 580 anaparam2 = RTL8187_RTL8225_ANAPARAM2_OFF; 581 } 582 } else { 583 if (rfon) { 584 anaparam = RTL8187B_RTL8225_ANAPARAM_ON; 585 anaparam2 = RTL8187B_RTL8225_ANAPARAM2_ON; 586 anaparam3 = RTL8187B_RTL8225_ANAPARAM3_ON; 587 } else { 588 anaparam = RTL8187B_RTL8225_ANAPARAM_OFF; 589 anaparam2 = RTL8187B_RTL8225_ANAPARAM2_OFF; 590 anaparam3 = RTL8187B_RTL8225_ANAPARAM3_OFF; 591 } 592 } 593 594 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, 595 RTL818X_EEPROM_CMD_CONFIG); 596 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3); 597 reg |= RTL818X_CONFIG3_ANAPARAM_WRITE; 598 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg); 599 rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam); 600 rtl818x_iowrite32(priv, &priv->map->ANAPARAM2, anaparam2); 601 if (priv->is_rtl8187b) 602 rtl818x_iowrite8(priv, &priv->map->ANAPARAM3A, anaparam3); 603 reg &= ~RTL818X_CONFIG3_ANAPARAM_WRITE; 604 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg); 605 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, 606 RTL818X_EEPROM_CMD_NORMAL); 607 } 608 609 static int rtl8187_cmd_reset(struct ieee80211_hw *dev) 610 { 611 struct rtl8187_priv *priv = dev->priv; 612 u8 reg; 613 int i; 614 615 reg = rtl818x_ioread8(priv, &priv->map->CMD); 616 reg &= (1 << 1); 617 reg |= RTL818X_CMD_RESET; 618 rtl818x_iowrite8(priv, &priv->map->CMD, reg); 619 620 i = 10; 621 do { 622 msleep(2); 623 if (!(rtl818x_ioread8(priv, &priv->map->CMD) & 624 RTL818X_CMD_RESET)) 625 break; 626 } while (--i); 627 628 if (!i) { 629 wiphy_err(dev->wiphy, "Reset timeout!\n"); 630 return -ETIMEDOUT; 631 } 632 633 /* reload registers from eeprom */ 634 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD); 635 636 i = 10; 637 do { 638 msleep(4); 639 if (!(rtl818x_ioread8(priv, &priv->map->EEPROM_CMD) & 640 RTL818X_EEPROM_CMD_CONFIG)) 641 break; 642 } while (--i); 643 644 if (!i) { 645 wiphy_err(dev->wiphy, "eeprom reset timeout!\n"); 646 return -ETIMEDOUT; 647 } 648 649 return 0; 650 } 651 652 static int rtl8187_init_hw(struct ieee80211_hw *dev) 653 { 654 struct rtl8187_priv *priv = dev->priv; 655 u8 reg; 656 int res; 657 658 /* reset */ 659 rtl8187_set_anaparam(priv, true); 660 661 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0); 662 663 msleep(200); 664 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x10); 665 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x11); 666 rtl818x_iowrite8(priv, (u8 *)0xFE18, 0x00); 667 msleep(200); 668 669 res = rtl8187_cmd_reset(dev); 670 if (res) 671 return res; 672 673 rtl8187_set_anaparam(priv, true); 674 675 /* setup card */ 676 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0); 677 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0); 678 679 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8)); 680 rtl818x_iowrite8(priv, &priv->map->GPIO0, 1); 681 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0); 682 683 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); 684 685 rtl818x_iowrite16(priv, (__le16 *)0xFFF4, 0xFFFF); 686 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1); 687 reg &= 0x3F; 688 reg |= 0x80; 689 rtl818x_iowrite8(priv, &priv->map->CONFIG1, reg); 690 691 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); 692 693 rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0); 694 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0); 695 rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0); 696 697 // TODO: set RESP_RATE and BRSR properly 698 rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0); 699 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3); 700 701 /* host_usb_init */ 702 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0); 703 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0); 704 reg = rtl818x_ioread8(priv, (u8 *)0xFE53); 705 rtl818x_iowrite8(priv, (u8 *)0xFE53, reg | (1 << 7)); 706 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, (4 << 8)); 707 rtl818x_iowrite8(priv, &priv->map->GPIO0, 0x20); 708 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, 0); 709 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x80); 710 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x80); 711 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x80); 712 msleep(100); 713 714 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x000a8008); 715 rtl818x_iowrite16(priv, &priv->map->BRSR, 0xFFFF); 716 rtl818x_iowrite32(priv, &priv->map->RF_PARA, 0x00100044); 717 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, 718 RTL818X_EEPROM_CMD_CONFIG); 719 rtl818x_iowrite8(priv, &priv->map->CONFIG3, 0x44); 720 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, 721 RTL818X_EEPROM_CMD_NORMAL); 722 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FF7); 723 msleep(100); 724 725 priv->rf->init(dev); 726 727 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3); 728 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1; 729 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1); 730 rtl818x_iowrite16(priv, (__le16 *)0xFFFE, 0x10); 731 rtl818x_iowrite8(priv, &priv->map->TALLY_SEL, 0x80); 732 rtl818x_iowrite8(priv, (u8 *)0xFFFF, 0x60); 733 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg); 734 735 return 0; 736 } 737 738 static const u8 rtl8187b_reg_table[][3] = { 739 {0xF0, 0x32, 0}, {0xF1, 0x32, 0}, {0xF2, 0x00, 0}, {0xF3, 0x00, 0}, 740 {0xF4, 0x32, 0}, {0xF5, 0x43, 0}, {0xF6, 0x00, 0}, {0xF7, 0x00, 0}, 741 {0xF8, 0x46, 0}, {0xF9, 0xA4, 0}, {0xFA, 0x00, 0}, {0xFB, 0x00, 0}, 742 {0xFC, 0x96, 0}, {0xFD, 0xA4, 0}, {0xFE, 0x00, 0}, {0xFF, 0x00, 0}, 743 744 {0x58, 0x4B, 1}, {0x59, 0x00, 1}, {0x5A, 0x4B, 1}, {0x5B, 0x00, 1}, 745 {0x60, 0x4B, 1}, {0x61, 0x09, 1}, {0x62, 0x4B, 1}, {0x63, 0x09, 1}, 746 {0xCE, 0x0F, 1}, {0xCF, 0x00, 1}, {0xF0, 0x4E, 1}, {0xF1, 0x01, 1}, 747 {0xF2, 0x02, 1}, {0xF3, 0x03, 1}, {0xF4, 0x04, 1}, {0xF5, 0x05, 1}, 748 {0xF6, 0x06, 1}, {0xF7, 0x07, 1}, {0xF8, 0x08, 1}, 749 750 {0x4E, 0x00, 2}, {0x0C, 0x04, 2}, {0x21, 0x61, 2}, {0x22, 0x68, 2}, 751 {0x23, 0x6F, 2}, {0x24, 0x76, 2}, {0x25, 0x7D, 2}, {0x26, 0x84, 2}, 752 {0x27, 0x8D, 2}, {0x4D, 0x08, 2}, {0x50, 0x05, 2}, {0x51, 0xF5, 2}, 753 {0x52, 0x04, 2}, {0x53, 0xA0, 2}, {0x54, 0x1F, 2}, {0x55, 0x23, 2}, 754 {0x56, 0x45, 2}, {0x57, 0x67, 2}, {0x58, 0x08, 2}, {0x59, 0x08, 2}, 755 {0x5A, 0x08, 2}, {0x5B, 0x08, 2}, {0x60, 0x08, 2}, {0x61, 0x08, 2}, 756 {0x62, 0x08, 2}, {0x63, 0x08, 2}, {0x64, 0xCF, 2}, 757 758 {0x5B, 0x40, 0}, {0x84, 0x88, 0}, {0x85, 0x24, 0}, {0x88, 0x54, 0}, 759 {0x8B, 0xB8, 0}, {0x8C, 0x07, 0}, {0x8D, 0x00, 0}, {0x94, 0x1B, 0}, 760 {0x95, 0x12, 0}, {0x96, 0x00, 0}, {0x97, 0x06, 0}, {0x9D, 0x1A, 0}, 761 {0x9F, 0x10, 0}, {0xB4, 0x22, 0}, {0xBE, 0x80, 0}, {0xDB, 0x00, 0}, 762 {0xEE, 0x00, 0}, {0x4C, 0x00, 2}, 763 764 {0x9F, 0x00, 3}, {0x8C, 0x01, 0}, {0x8D, 0x10, 0}, {0x8E, 0x08, 0}, 765 {0x8F, 0x00, 0} 766 }; 767 768 static int rtl8187b_init_hw(struct ieee80211_hw *dev) 769 { 770 struct rtl8187_priv *priv = dev->priv; 771 int res, i; 772 u8 reg; 773 774 rtl8187_set_anaparam(priv, true); 775 776 /* Reset PLL sequence on 8187B. Realtek note: reduces power 777 * consumption about 30 mA */ 778 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0x10); 779 reg = rtl818x_ioread8(priv, (u8 *)0xFF62); 780 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg & ~(1 << 5)); 781 rtl818x_iowrite8(priv, (u8 *)0xFF62, reg | (1 << 5)); 782 783 res = rtl8187_cmd_reset(dev); 784 if (res) 785 return res; 786 787 rtl8187_set_anaparam(priv, true); 788 789 /* BRSR (Basic Rate Set Register) on 8187B looks to be the same as 790 * RESP_RATE on 8187L in Realtek sources: each bit should be each 791 * one of the 12 rates, all are enabled */ 792 rtl818x_iowrite16(priv, (__le16 *)0xFF34, 0x0FFF); 793 794 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF); 795 reg |= RTL818X_CW_CONF_PERPACKET_RETRY; 796 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg); 797 798 /* Auto Rate Fallback Register (ARFR): 1M-54M setting */ 799 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1); 800 rtl818x_iowrite8_idx(priv, (u8 *)0xFFE2, 0x00, 1); 801 802 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFD4, 0xFFFF, 1); 803 804 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, 805 RTL818X_EEPROM_CMD_CONFIG); 806 reg = rtl818x_ioread8(priv, &priv->map->CONFIG1); 807 rtl818x_iowrite8(priv, &priv->map->CONFIG1, (reg & 0x3F) | 0x80); 808 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, 809 RTL818X_EEPROM_CMD_NORMAL); 810 811 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0); 812 for (i = 0; i < ARRAY_SIZE(rtl8187b_reg_table); i++) { 813 rtl818x_iowrite8_idx(priv, 814 (u8 *)(uintptr_t) 815 (rtl8187b_reg_table[i][0] | 0xFF00), 816 rtl8187b_reg_table[i][1], 817 rtl8187b_reg_table[i][2]); 818 } 819 820 rtl818x_iowrite16(priv, &priv->map->TID_AC_MAP, 0xFA50); 821 rtl818x_iowrite16(priv, &priv->map->INT_MIG, 0); 822 823 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF0, 0, 1); 824 rtl818x_iowrite32_idx(priv, (__le32 *)0xFFF4, 0, 1); 825 rtl818x_iowrite8_idx(priv, (u8 *)0xFFF8, 0, 1); 826 827 rtl818x_iowrite32(priv, &priv->map->RF_TIMING, 0x00004001); 828 829 /* RFSW_CTRL register */ 830 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x569A, 2); 831 832 rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480); 833 rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488); 834 rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF); 835 msleep(100); 836 837 priv->rf->init(dev); 838 839 reg = RTL818X_CMD_TX_ENABLE | RTL818X_CMD_RX_ENABLE; 840 rtl818x_iowrite8(priv, &priv->map->CMD, reg); 841 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF); 842 843 rtl818x_iowrite8(priv, (u8 *)0xFE41, 0xF4); 844 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x00); 845 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00); 846 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01); 847 rtl818x_iowrite8(priv, (u8 *)0xFE40, 0x0F); 848 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x00); 849 rtl818x_iowrite8(priv, (u8 *)0xFE42, 0x01); 850 851 reg = rtl818x_ioread8(priv, (u8 *)0xFFDB); 852 rtl818x_iowrite8(priv, (u8 *)0xFFDB, reg | (1 << 2)); 853 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF72, 0x59FA, 3); 854 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF74, 0x59D2, 3); 855 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF76, 0x59D2, 3); 856 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF78, 0x19FA, 3); 857 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7A, 0x19FA, 3); 858 rtl818x_iowrite16_idx(priv, (__le16 *)0xFF7C, 0x00D0, 3); 859 rtl818x_iowrite8(priv, (u8 *)0xFF61, 0); 860 rtl818x_iowrite8_idx(priv, (u8 *)0xFF80, 0x0F, 1); 861 rtl818x_iowrite8_idx(priv, (u8 *)0xFF83, 0x03, 1); 862 rtl818x_iowrite8(priv, (u8 *)0xFFDA, 0x10); 863 rtl818x_iowrite8_idx(priv, (u8 *)0xFF4D, 0x08, 2); 864 865 rtl818x_iowrite32(priv, &priv->map->HSSI_PARA, 0x0600321B); 866 867 rtl818x_iowrite16_idx(priv, (__le16 *)0xFFEC, 0x0800, 1); 868 869 priv->slot_time = 0x9; 870 priv->aifsn[0] = 2; /* AIFSN[AC_VO] */ 871 priv->aifsn[1] = 2; /* AIFSN[AC_VI] */ 872 priv->aifsn[2] = 7; /* AIFSN[AC_BK] */ 873 priv->aifsn[3] = 3; /* AIFSN[AC_BE] */ 874 rtl818x_iowrite8(priv, &priv->map->ACM_CONTROL, 0); 875 876 /* ENEDCA flag must always be set, transmit issues? */ 877 rtl818x_iowrite8(priv, &priv->map->MSR, RTL818X_MSR_ENEDCA); 878 879 return 0; 880 } 881 882 static void rtl8187_work(struct work_struct *work) 883 { 884 /* The RTL8187 returns the retry count through register 0xFFFA. In 885 * addition, it appears to be a cumulative retry count, not the 886 * value for the current TX packet. When multiple TX entries are 887 * waiting in the queue, the retry count will be the total for all. 888 * The "error" may matter for purposes of rate setting, but there is 889 * no other choice with this hardware. 890 */ 891 struct rtl8187_priv *priv = container_of(work, struct rtl8187_priv, 892 work.work); 893 struct ieee80211_tx_info *info; 894 struct ieee80211_hw *dev = priv->dev; 895 static u16 retry; 896 u16 tmp; 897 u16 avg_retry; 898 int length; 899 900 mutex_lock(&priv->conf_mutex); 901 tmp = rtl818x_ioread16(priv, (__le16 *)0xFFFA); 902 length = skb_queue_len(&priv->b_tx_status.queue); 903 if (unlikely(!length)) 904 length = 1; 905 if (unlikely(tmp < retry)) 906 tmp = retry; 907 avg_retry = (tmp - retry) / length; 908 while (skb_queue_len(&priv->b_tx_status.queue) > 0) { 909 struct sk_buff *old_skb; 910 911 old_skb = skb_dequeue(&priv->b_tx_status.queue); 912 info = IEEE80211_SKB_CB(old_skb); 913 info->status.rates[0].count = avg_retry + 1; 914 if (info->status.rates[0].count > RETRY_COUNT) 915 info->flags &= ~IEEE80211_TX_STAT_ACK; 916 ieee80211_tx_status_irqsafe(dev, old_skb); 917 } 918 retry = tmp; 919 mutex_unlock(&priv->conf_mutex); 920 } 921 922 static int rtl8187_start(struct ieee80211_hw *dev) 923 { 924 struct rtl8187_priv *priv = dev->priv; 925 u32 reg; 926 int ret; 927 928 mutex_lock(&priv->conf_mutex); 929 930 ret = (!priv->is_rtl8187b) ? rtl8187_init_hw(dev) : 931 rtl8187b_init_hw(dev); 932 if (ret) 933 goto rtl8187_start_exit; 934 935 init_usb_anchor(&priv->anchored); 936 priv->dev = dev; 937 938 if (priv->is_rtl8187b) { 939 reg = RTL818X_RX_CONF_MGMT | 940 RTL818X_RX_CONF_DATA | 941 RTL818X_RX_CONF_BROADCAST | 942 RTL818X_RX_CONF_NICMAC | 943 RTL818X_RX_CONF_BSSID | 944 (7 << 13 /* RX FIFO threshold NONE */) | 945 (7 << 10 /* MAX RX DMA */) | 946 RTL818X_RX_CONF_RX_AUTORESETPHY | 947 RTL818X_RX_CONF_ONLYERLPKT; 948 priv->rx_conf = reg; 949 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg); 950 951 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL); 952 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN; 953 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL; 954 reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT; 955 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg); 956 957 rtl818x_iowrite32(priv, &priv->map->TX_CONF, 958 RTL818X_TX_CONF_HW_SEQNUM | 959 RTL818X_TX_CONF_DISREQQSIZE | 960 (RETRY_COUNT << 8 /* short retry limit */) | 961 (RETRY_COUNT << 0 /* long retry limit */) | 962 (7 << 21 /* MAX TX DMA */)); 963 ret = rtl8187_init_urbs(dev); 964 if (ret) 965 goto rtl8187_start_exit; 966 ret = rtl8187b_init_status_urb(dev); 967 if (ret) 968 usb_kill_anchored_urbs(&priv->anchored); 969 goto rtl8187_start_exit; 970 } 971 972 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0xFFFF); 973 974 rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0); 975 rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0); 976 977 ret = rtl8187_init_urbs(dev); 978 if (ret) 979 goto rtl8187_start_exit; 980 981 reg = RTL818X_RX_CONF_ONLYERLPKT | 982 RTL818X_RX_CONF_RX_AUTORESETPHY | 983 RTL818X_RX_CONF_BSSID | 984 RTL818X_RX_CONF_MGMT | 985 RTL818X_RX_CONF_DATA | 986 (7 << 13 /* RX FIFO threshold NONE */) | 987 (7 << 10 /* MAX RX DMA */) | 988 RTL818X_RX_CONF_BROADCAST | 989 RTL818X_RX_CONF_NICMAC; 990 991 priv->rx_conf = reg; 992 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg); 993 994 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF); 995 reg &= ~RTL818X_CW_CONF_PERPACKET_CW; 996 reg |= RTL818X_CW_CONF_PERPACKET_RETRY; 997 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg); 998 999 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL); 1000 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN; 1001 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL; 1002 reg &= ~RTL818X_TX_AGC_CTL_FEEDBACK_ANT; 1003 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg); 1004 1005 reg = RTL818X_TX_CONF_CW_MIN | 1006 (7 << 21 /* MAX TX DMA */) | 1007 RTL818X_TX_CONF_NO_ICV; 1008 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg); 1009 1010 reg = rtl818x_ioread8(priv, &priv->map->CMD); 1011 reg |= RTL818X_CMD_TX_ENABLE; 1012 reg |= RTL818X_CMD_RX_ENABLE; 1013 rtl818x_iowrite8(priv, &priv->map->CMD, reg); 1014 INIT_DELAYED_WORK(&priv->work, rtl8187_work); 1015 1016 rtl8187_start_exit: 1017 mutex_unlock(&priv->conf_mutex); 1018 return ret; 1019 } 1020 1021 static void rtl8187_stop(struct ieee80211_hw *dev) 1022 { 1023 struct rtl8187_priv *priv = dev->priv; 1024 struct sk_buff *skb; 1025 u32 reg; 1026 1027 mutex_lock(&priv->conf_mutex); 1028 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0); 1029 1030 reg = rtl818x_ioread8(priv, &priv->map->CMD); 1031 reg &= ~RTL818X_CMD_TX_ENABLE; 1032 reg &= ~RTL818X_CMD_RX_ENABLE; 1033 rtl818x_iowrite8(priv, &priv->map->CMD, reg); 1034 1035 priv->rf->stop(dev); 1036 rtl8187_set_anaparam(priv, false); 1037 1038 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); 1039 reg = rtl818x_ioread8(priv, &priv->map->CONFIG4); 1040 rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF); 1041 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); 1042 1043 while ((skb = skb_dequeue(&priv->b_tx_status.queue))) 1044 dev_kfree_skb_any(skb); 1045 1046 usb_kill_anchored_urbs(&priv->anchored); 1047 mutex_unlock(&priv->conf_mutex); 1048 1049 if (!priv->is_rtl8187b) 1050 cancel_delayed_work_sync(&priv->work); 1051 } 1052 1053 static u64 rtl8187_get_tsf(struct ieee80211_hw *dev, struct ieee80211_vif *vif) 1054 { 1055 struct rtl8187_priv *priv = dev->priv; 1056 1057 return rtl818x_ioread32(priv, &priv->map->TSFT[0]) | 1058 (u64)(rtl818x_ioread32(priv, &priv->map->TSFT[1])) << 32; 1059 } 1060 1061 1062 static void rtl8187_beacon_work(struct work_struct *work) 1063 { 1064 struct rtl8187_vif *vif_priv = 1065 container_of(work, struct rtl8187_vif, beacon_work.work); 1066 struct ieee80211_vif *vif = 1067 container_of((void *)vif_priv, struct ieee80211_vif, drv_priv); 1068 struct ieee80211_hw *dev = vif_priv->dev; 1069 struct ieee80211_mgmt *mgmt; 1070 struct sk_buff *skb; 1071 1072 /* don't overflow the tx ring */ 1073 if (ieee80211_queue_stopped(dev, 0)) 1074 goto resched; 1075 1076 /* grab a fresh beacon */ 1077 skb = ieee80211_beacon_get(dev, vif); 1078 if (!skb) 1079 goto resched; 1080 1081 /* 1082 * update beacon timestamp w/ TSF value 1083 * TODO: make hardware update beacon timestamp 1084 */ 1085 mgmt = (struct ieee80211_mgmt *)skb->data; 1086 mgmt->u.beacon.timestamp = cpu_to_le64(rtl8187_get_tsf(dev, vif)); 1087 1088 /* TODO: use actual beacon queue */ 1089 skb_set_queue_mapping(skb, 0); 1090 1091 rtl8187_tx(dev, NULL, skb); 1092 1093 resched: 1094 /* 1095 * schedule next beacon 1096 * TODO: use hardware support for beacon timing 1097 */ 1098 schedule_delayed_work(&vif_priv->beacon_work, 1099 usecs_to_jiffies(1024 * vif->bss_conf.beacon_int)); 1100 } 1101 1102 1103 static int rtl8187_add_interface(struct ieee80211_hw *dev, 1104 struct ieee80211_vif *vif) 1105 { 1106 struct rtl8187_priv *priv = dev->priv; 1107 struct rtl8187_vif *vif_priv; 1108 int i; 1109 int ret = -EOPNOTSUPP; 1110 1111 mutex_lock(&priv->conf_mutex); 1112 if (priv->vif) 1113 goto exit; 1114 1115 switch (vif->type) { 1116 case NL80211_IFTYPE_STATION: 1117 case NL80211_IFTYPE_ADHOC: 1118 break; 1119 default: 1120 goto exit; 1121 } 1122 1123 ret = 0; 1124 priv->vif = vif; 1125 1126 /* Initialize driver private area */ 1127 vif_priv = (struct rtl8187_vif *)&vif->drv_priv; 1128 vif_priv->dev = dev; 1129 INIT_DELAYED_WORK(&vif_priv->beacon_work, rtl8187_beacon_work); 1130 vif_priv->enable_beacon = false; 1131 1132 1133 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); 1134 for (i = 0; i < ETH_ALEN; i++) 1135 rtl818x_iowrite8(priv, &priv->map->MAC[i], 1136 ((u8 *)vif->addr)[i]); 1137 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); 1138 1139 exit: 1140 mutex_unlock(&priv->conf_mutex); 1141 return ret; 1142 } 1143 1144 static void rtl8187_remove_interface(struct ieee80211_hw *dev, 1145 struct ieee80211_vif *vif) 1146 { 1147 struct rtl8187_priv *priv = dev->priv; 1148 mutex_lock(&priv->conf_mutex); 1149 priv->vif = NULL; 1150 mutex_unlock(&priv->conf_mutex); 1151 } 1152 1153 static int rtl8187_config(struct ieee80211_hw *dev, u32 changed) 1154 { 1155 struct rtl8187_priv *priv = dev->priv; 1156 struct ieee80211_conf *conf = &dev->conf; 1157 u32 reg; 1158 1159 mutex_lock(&priv->conf_mutex); 1160 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF); 1161 /* Enable TX loopback on MAC level to avoid TX during channel 1162 * changes, as this has be seen to causes problems and the 1163 * card will stop work until next reset 1164 */ 1165 rtl818x_iowrite32(priv, &priv->map->TX_CONF, 1166 reg | RTL818X_TX_CONF_LOOPBACK_MAC); 1167 priv->rf->set_chan(dev, conf); 1168 msleep(10); 1169 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg); 1170 1171 rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2); 1172 rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100); 1173 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100); 1174 rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL_TIME, 100); 1175 mutex_unlock(&priv->conf_mutex); 1176 return 0; 1177 } 1178 1179 /* 1180 * With 8187B, AC_*_PARAM clashes with FEMR definition in struct rtl818x_csr for 1181 * example. Thus we have to use raw values for AC_*_PARAM register addresses. 1182 */ 1183 static __le32 *rtl8187b_ac_addr[4] = { 1184 (__le32 *) 0xFFF0, /* AC_VO */ 1185 (__le32 *) 0xFFF4, /* AC_VI */ 1186 (__le32 *) 0xFFFC, /* AC_BK */ 1187 (__le32 *) 0xFFF8, /* AC_BE */ 1188 }; 1189 1190 #define SIFS_TIME 0xa 1191 1192 static void rtl8187_conf_erp(struct rtl8187_priv *priv, bool use_short_slot, 1193 bool use_short_preamble) 1194 { 1195 if (priv->is_rtl8187b) { 1196 u8 difs, eifs; 1197 u16 ack_timeout; 1198 int queue; 1199 1200 if (use_short_slot) { 1201 priv->slot_time = 0x9; 1202 difs = 0x1c; 1203 eifs = 0x53; 1204 } else { 1205 priv->slot_time = 0x14; 1206 difs = 0x32; 1207 eifs = 0x5b; 1208 } 1209 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22); 1210 rtl818x_iowrite8(priv, &priv->map->SLOT, priv->slot_time); 1211 rtl818x_iowrite8(priv, &priv->map->DIFS, difs); 1212 1213 /* 1214 * BRSR+1 on 8187B is in fact EIFS register 1215 * Value in units of 4 us 1216 */ 1217 rtl818x_iowrite8(priv, (u8 *)&priv->map->BRSR + 1, eifs); 1218 1219 /* 1220 * For 8187B, CARRIER_SENSE_COUNTER is in fact ack timeout 1221 * register. In units of 4 us like eifs register 1222 * ack_timeout = ack duration + plcp + difs + preamble 1223 */ 1224 ack_timeout = 112 + 48 + difs; 1225 if (use_short_preamble) 1226 ack_timeout += 72; 1227 else 1228 ack_timeout += 144; 1229 rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, 1230 DIV_ROUND_UP(ack_timeout, 4)); 1231 1232 for (queue = 0; queue < 4; queue++) 1233 rtl818x_iowrite8(priv, (u8 *) rtl8187b_ac_addr[queue], 1234 priv->aifsn[queue] * priv->slot_time + 1235 SIFS_TIME); 1236 } else { 1237 rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22); 1238 if (use_short_slot) { 1239 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9); 1240 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14); 1241 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14); 1242 } else { 1243 rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14); 1244 rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24); 1245 rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24); 1246 } 1247 } 1248 } 1249 1250 static void rtl8187_bss_info_changed(struct ieee80211_hw *dev, 1251 struct ieee80211_vif *vif, 1252 struct ieee80211_bss_conf *info, 1253 u32 changed) 1254 { 1255 struct rtl8187_priv *priv = dev->priv; 1256 struct rtl8187_vif *vif_priv; 1257 int i; 1258 u8 reg; 1259 1260 vif_priv = (struct rtl8187_vif *)&vif->drv_priv; 1261 1262 if (changed & BSS_CHANGED_BSSID) { 1263 mutex_lock(&priv->conf_mutex); 1264 for (i = 0; i < ETH_ALEN; i++) 1265 rtl818x_iowrite8(priv, &priv->map->BSSID[i], 1266 info->bssid[i]); 1267 1268 if (priv->is_rtl8187b) 1269 reg = RTL818X_MSR_ENEDCA; 1270 else 1271 reg = 0; 1272 1273 if (is_valid_ether_addr(info->bssid)) { 1274 if (vif->type == NL80211_IFTYPE_ADHOC) 1275 reg |= RTL818X_MSR_ADHOC; 1276 else 1277 reg |= RTL818X_MSR_INFRA; 1278 } 1279 else 1280 reg |= RTL818X_MSR_NO_LINK; 1281 1282 rtl818x_iowrite8(priv, &priv->map->MSR, reg); 1283 1284 mutex_unlock(&priv->conf_mutex); 1285 } 1286 1287 if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_ERP_PREAMBLE)) 1288 rtl8187_conf_erp(priv, info->use_short_slot, 1289 info->use_short_preamble); 1290 1291 if (changed & BSS_CHANGED_BEACON_ENABLED) 1292 vif_priv->enable_beacon = info->enable_beacon; 1293 1294 if (changed & (BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON)) { 1295 cancel_delayed_work_sync(&vif_priv->beacon_work); 1296 if (vif_priv->enable_beacon) 1297 schedule_work(&vif_priv->beacon_work.work); 1298 } 1299 1300 } 1301 1302 static u64 rtl8187_prepare_multicast(struct ieee80211_hw *dev, 1303 struct netdev_hw_addr_list *mc_list) 1304 { 1305 return netdev_hw_addr_list_count(mc_list); 1306 } 1307 1308 static void rtl8187_configure_filter(struct ieee80211_hw *dev, 1309 unsigned int changed_flags, 1310 unsigned int *total_flags, 1311 u64 multicast) 1312 { 1313 struct rtl8187_priv *priv = dev->priv; 1314 1315 if (changed_flags & FIF_FCSFAIL) 1316 priv->rx_conf ^= RTL818X_RX_CONF_FCS; 1317 if (changed_flags & FIF_CONTROL) 1318 priv->rx_conf ^= RTL818X_RX_CONF_CTRL; 1319 if (*total_flags & FIF_OTHER_BSS || 1320 *total_flags & FIF_ALLMULTI || multicast > 0) 1321 priv->rx_conf |= RTL818X_RX_CONF_MONITOR; 1322 else 1323 priv->rx_conf &= ~RTL818X_RX_CONF_MONITOR; 1324 1325 *total_flags = 0; 1326 1327 if (priv->rx_conf & RTL818X_RX_CONF_FCS) 1328 *total_flags |= FIF_FCSFAIL; 1329 if (priv->rx_conf & RTL818X_RX_CONF_CTRL) 1330 *total_flags |= FIF_CONTROL; 1331 if (priv->rx_conf & RTL818X_RX_CONF_MONITOR) { 1332 *total_flags |= FIF_OTHER_BSS; 1333 *total_flags |= FIF_ALLMULTI; 1334 } 1335 1336 rtl818x_iowrite32_async(priv, &priv->map->RX_CONF, priv->rx_conf); 1337 } 1338 1339 static int rtl8187_conf_tx(struct ieee80211_hw *dev, 1340 struct ieee80211_vif *vif, u16 queue, 1341 const struct ieee80211_tx_queue_params *params) 1342 { 1343 struct rtl8187_priv *priv = dev->priv; 1344 u8 cw_min, cw_max; 1345 1346 if (queue > 3) 1347 return -EINVAL; 1348 1349 cw_min = fls(params->cw_min); 1350 cw_max = fls(params->cw_max); 1351 1352 if (priv->is_rtl8187b) { 1353 priv->aifsn[queue] = params->aifs; 1354 1355 /* 1356 * This is the structure of AC_*_PARAM registers in 8187B: 1357 * - TXOP limit field, bit offset = 16 1358 * - ECWmax, bit offset = 12 1359 * - ECWmin, bit offset = 8 1360 * - AIFS, bit offset = 0 1361 */ 1362 rtl818x_iowrite32(priv, rtl8187b_ac_addr[queue], 1363 (params->txop << 16) | (cw_max << 12) | 1364 (cw_min << 8) | (params->aifs * 1365 priv->slot_time + SIFS_TIME)); 1366 } else { 1367 if (queue != 0) 1368 return -EINVAL; 1369 1370 rtl818x_iowrite8(priv, &priv->map->CW_VAL, 1371 cw_min | (cw_max << 4)); 1372 } 1373 return 0; 1374 } 1375 1376 1377 static const struct ieee80211_ops rtl8187_ops = { 1378 .tx = rtl8187_tx, 1379 .start = rtl8187_start, 1380 .stop = rtl8187_stop, 1381 .add_interface = rtl8187_add_interface, 1382 .remove_interface = rtl8187_remove_interface, 1383 .config = rtl8187_config, 1384 .bss_info_changed = rtl8187_bss_info_changed, 1385 .prepare_multicast = rtl8187_prepare_multicast, 1386 .configure_filter = rtl8187_configure_filter, 1387 .conf_tx = rtl8187_conf_tx, 1388 .rfkill_poll = rtl8187_rfkill_poll, 1389 .get_tsf = rtl8187_get_tsf, 1390 }; 1391 1392 static void rtl8187_eeprom_register_read(struct eeprom_93cx6 *eeprom) 1393 { 1394 struct ieee80211_hw *dev = eeprom->data; 1395 struct rtl8187_priv *priv = dev->priv; 1396 u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD); 1397 1398 eeprom->reg_data_in = reg & RTL818X_EEPROM_CMD_WRITE; 1399 eeprom->reg_data_out = reg & RTL818X_EEPROM_CMD_READ; 1400 eeprom->reg_data_clock = reg & RTL818X_EEPROM_CMD_CK; 1401 eeprom->reg_chip_select = reg & RTL818X_EEPROM_CMD_CS; 1402 } 1403 1404 static void rtl8187_eeprom_register_write(struct eeprom_93cx6 *eeprom) 1405 { 1406 struct ieee80211_hw *dev = eeprom->data; 1407 struct rtl8187_priv *priv = dev->priv; 1408 u8 reg = RTL818X_EEPROM_CMD_PROGRAM; 1409 1410 if (eeprom->reg_data_in) 1411 reg |= RTL818X_EEPROM_CMD_WRITE; 1412 if (eeprom->reg_data_out) 1413 reg |= RTL818X_EEPROM_CMD_READ; 1414 if (eeprom->reg_data_clock) 1415 reg |= RTL818X_EEPROM_CMD_CK; 1416 if (eeprom->reg_chip_select) 1417 reg |= RTL818X_EEPROM_CMD_CS; 1418 1419 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg); 1420 udelay(10); 1421 } 1422 1423 static int rtl8187_probe(struct usb_interface *intf, 1424 const struct usb_device_id *id) 1425 { 1426 struct usb_device *udev = interface_to_usbdev(intf); 1427 struct ieee80211_hw *dev; 1428 struct rtl8187_priv *priv; 1429 struct eeprom_93cx6 eeprom; 1430 struct ieee80211_channel *channel; 1431 const char *chip_name; 1432 u16 txpwr, reg; 1433 u16 product_id = le16_to_cpu(udev->descriptor.idProduct); 1434 int err, i; 1435 u8 mac_addr[ETH_ALEN]; 1436 1437 dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops); 1438 if (!dev) { 1439 printk(KERN_ERR "rtl8187: ieee80211 alloc failed\n"); 1440 return -ENOMEM; 1441 } 1442 1443 priv = dev->priv; 1444 priv->is_rtl8187b = (id->driver_info == DEVICE_RTL8187B); 1445 1446 /* allocate "DMA aware" buffer for register accesses */ 1447 priv->io_dmabuf = kmalloc(sizeof(*priv->io_dmabuf), GFP_KERNEL); 1448 if (!priv->io_dmabuf) { 1449 err = -ENOMEM; 1450 goto err_free_dev; 1451 } 1452 mutex_init(&priv->io_mutex); 1453 1454 SET_IEEE80211_DEV(dev, &intf->dev); 1455 usb_set_intfdata(intf, dev); 1456 priv->udev = udev; 1457 1458 usb_get_dev(udev); 1459 1460 skb_queue_head_init(&priv->rx_queue); 1461 1462 BUILD_BUG_ON(sizeof(priv->channels) != sizeof(rtl818x_channels)); 1463 BUILD_BUG_ON(sizeof(priv->rates) != sizeof(rtl818x_rates)); 1464 1465 memcpy(priv->channels, rtl818x_channels, sizeof(rtl818x_channels)); 1466 memcpy(priv->rates, rtl818x_rates, sizeof(rtl818x_rates)); 1467 priv->map = (struct rtl818x_csr *)0xFF00; 1468 1469 priv->band.band = NL80211_BAND_2GHZ; 1470 priv->band.channels = priv->channels; 1471 priv->band.n_channels = ARRAY_SIZE(rtl818x_channels); 1472 priv->band.bitrates = priv->rates; 1473 priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates); 1474 dev->wiphy->bands[NL80211_BAND_2GHZ] = &priv->band; 1475 1476 1477 ieee80211_hw_set(dev, RX_INCLUDES_FCS); 1478 ieee80211_hw_set(dev, HOST_BROADCAST_PS_BUFFERING); 1479 ieee80211_hw_set(dev, SIGNAL_DBM); 1480 /* Initialize rate-control variables */ 1481 dev->max_rates = 1; 1482 dev->max_rate_tries = RETRY_COUNT; 1483 1484 eeprom.data = dev; 1485 eeprom.register_read = rtl8187_eeprom_register_read; 1486 eeprom.register_write = rtl8187_eeprom_register_write; 1487 if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6)) 1488 eeprom.width = PCI_EEPROM_WIDTH_93C66; 1489 else 1490 eeprom.width = PCI_EEPROM_WIDTH_93C46; 1491 1492 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG); 1493 udelay(10); 1494 1495 eeprom_93cx6_multiread(&eeprom, RTL8187_EEPROM_MAC_ADDR, 1496 (__le16 __force *)mac_addr, 3); 1497 if (!is_valid_ether_addr(mac_addr)) { 1498 printk(KERN_WARNING "rtl8187: Invalid hwaddr! Using randomly " 1499 "generated MAC address\n"); 1500 eth_random_addr(mac_addr); 1501 } 1502 SET_IEEE80211_PERM_ADDR(dev, mac_addr); 1503 1504 channel = priv->channels; 1505 for (i = 0; i < 3; i++) { 1506 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_1 + i, 1507 &txpwr); 1508 (*channel++).hw_value = txpwr & 0xFF; 1509 (*channel++).hw_value = txpwr >> 8; 1510 } 1511 for (i = 0; i < 2; i++) { 1512 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_4 + i, 1513 &txpwr); 1514 (*channel++).hw_value = txpwr & 0xFF; 1515 (*channel++).hw_value = txpwr >> 8; 1516 } 1517 1518 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_BASE, 1519 &priv->txpwr_base); 1520 1521 reg = rtl818x_ioread8(priv, &priv->map->PGSELECT) & ~1; 1522 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg | 1); 1523 /* 0 means asic B-cut, we should use SW 3 wire 1524 * bit-by-bit banging for radio. 1 means we can use 1525 * USB specific request to write radio registers */ 1526 priv->asic_rev = rtl818x_ioread8(priv, (u8 *)0xFFFE) & 0x3; 1527 rtl818x_iowrite8(priv, &priv->map->PGSELECT, reg); 1528 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL); 1529 1530 if (!priv->is_rtl8187b) { 1531 u32 reg32; 1532 reg32 = rtl818x_ioread32(priv, &priv->map->TX_CONF); 1533 reg32 &= RTL818X_TX_CONF_HWVER_MASK; 1534 switch (reg32) { 1535 case RTL818X_TX_CONF_R8187vD_B: 1536 /* Some RTL8187B devices have a USB ID of 0x8187 1537 * detect them here */ 1538 chip_name = "RTL8187BvB(early)"; 1539 priv->is_rtl8187b = 1; 1540 priv->hw_rev = RTL8187BvB; 1541 break; 1542 case RTL818X_TX_CONF_R8187vD: 1543 chip_name = "RTL8187vD"; 1544 break; 1545 default: 1546 chip_name = "RTL8187vB (default)"; 1547 } 1548 } else { 1549 /* 1550 * Force USB request to write radio registers for 8187B, Realtek 1551 * only uses it in their sources 1552 */ 1553 /*if (priv->asic_rev == 0) { 1554 printk(KERN_WARNING "rtl8187: Forcing use of USB " 1555 "requests to write to radio registers\n"); 1556 priv->asic_rev = 1; 1557 }*/ 1558 switch (rtl818x_ioread8(priv, (u8 *)0xFFE1)) { 1559 case RTL818X_R8187B_B: 1560 chip_name = "RTL8187BvB"; 1561 priv->hw_rev = RTL8187BvB; 1562 break; 1563 case RTL818X_R8187B_D: 1564 chip_name = "RTL8187BvD"; 1565 priv->hw_rev = RTL8187BvD; 1566 break; 1567 case RTL818X_R8187B_E: 1568 chip_name = "RTL8187BvE"; 1569 priv->hw_rev = RTL8187BvE; 1570 break; 1571 default: 1572 chip_name = "RTL8187BvB (default)"; 1573 priv->hw_rev = RTL8187BvB; 1574 } 1575 } 1576 1577 if (!priv->is_rtl8187b) { 1578 for (i = 0; i < 2; i++) { 1579 eeprom_93cx6_read(&eeprom, 1580 RTL8187_EEPROM_TXPWR_CHAN_6 + i, 1581 &txpwr); 1582 (*channel++).hw_value = txpwr & 0xFF; 1583 (*channel++).hw_value = txpwr >> 8; 1584 } 1585 } else { 1586 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_TXPWR_CHAN_6, 1587 &txpwr); 1588 (*channel++).hw_value = txpwr & 0xFF; 1589 1590 eeprom_93cx6_read(&eeprom, 0x0A, &txpwr); 1591 (*channel++).hw_value = txpwr & 0xFF; 1592 1593 eeprom_93cx6_read(&eeprom, 0x1C, &txpwr); 1594 (*channel++).hw_value = txpwr & 0xFF; 1595 (*channel++).hw_value = txpwr >> 8; 1596 } 1597 /* Handle the differing rfkill GPIO bit in different models */ 1598 priv->rfkill_mask = RFKILL_MASK_8187_89_97; 1599 if (product_id == 0x8197 || product_id == 0x8198) { 1600 eeprom_93cx6_read(&eeprom, RTL8187_EEPROM_SELECT_GPIO, ®); 1601 if (reg & 0xFF00) 1602 priv->rfkill_mask = RFKILL_MASK_8198; 1603 } 1604 dev->vif_data_size = sizeof(struct rtl8187_vif); 1605 dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 1606 BIT(NL80211_IFTYPE_ADHOC) ; 1607 1608 wiphy_ext_feature_set(dev->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST); 1609 1610 if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b) 1611 printk(KERN_INFO "rtl8187: inconsistency between id with OEM" 1612 " info!\n"); 1613 1614 priv->rf = rtl8187_detect_rf(dev); 1615 dev->extra_tx_headroom = (!priv->is_rtl8187b) ? 1616 sizeof(struct rtl8187_tx_hdr) : 1617 sizeof(struct rtl8187b_tx_hdr); 1618 if (!priv->is_rtl8187b) 1619 dev->queues = 1; 1620 else 1621 dev->queues = 4; 1622 1623 err = ieee80211_register_hw(dev); 1624 if (err) { 1625 printk(KERN_ERR "rtl8187: Cannot register device\n"); 1626 goto err_free_dmabuf; 1627 } 1628 mutex_init(&priv->conf_mutex); 1629 skb_queue_head_init(&priv->b_tx_status.queue); 1630 1631 wiphy_info(dev->wiphy, "hwaddr %pM, %s V%d + %s, rfkill mask %d\n", 1632 mac_addr, chip_name, priv->asic_rev, priv->rf->name, 1633 priv->rfkill_mask); 1634 1635 #ifdef CONFIG_RTL8187_LEDS 1636 eeprom_93cx6_read(&eeprom, 0x3F, ®); 1637 reg &= 0xFF; 1638 rtl8187_leds_init(dev, reg); 1639 #endif 1640 rtl8187_rfkill_init(dev); 1641 1642 return 0; 1643 1644 err_free_dmabuf: 1645 kfree(priv->io_dmabuf); 1646 usb_set_intfdata(intf, NULL); 1647 usb_put_dev(udev); 1648 err_free_dev: 1649 ieee80211_free_hw(dev); 1650 return err; 1651 } 1652 1653 static void rtl8187_disconnect(struct usb_interface *intf) 1654 { 1655 struct ieee80211_hw *dev = usb_get_intfdata(intf); 1656 struct rtl8187_priv *priv; 1657 1658 if (!dev) 1659 return; 1660 1661 #ifdef CONFIG_RTL8187_LEDS 1662 rtl8187_leds_exit(dev); 1663 #endif 1664 rtl8187_rfkill_exit(dev); 1665 ieee80211_unregister_hw(dev); 1666 1667 priv = dev->priv; 1668 usb_reset_device(priv->udev); 1669 usb_put_dev(interface_to_usbdev(intf)); 1670 kfree(priv->io_dmabuf); 1671 ieee80211_free_hw(dev); 1672 } 1673 1674 static struct usb_driver rtl8187_driver = { 1675 .name = KBUILD_MODNAME, 1676 .id_table = rtl8187_table, 1677 .probe = rtl8187_probe, 1678 .disconnect = rtl8187_disconnect, 1679 .disable_hub_initiated_lpm = 1, 1680 }; 1681 1682 module_usb_driver(rtl8187_driver); 1683