3 * Linux device driver for RTL8180 / RTL8185
5 * Copyright 2007 Michael Wu <flamingice@sourmilk.net>
6 * Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
8 * Modified for iPXE, June 2009, by Joshua Oreman <oremanj@rwcr.net>
10 * Based on the r8180 driver, which is:
11 * Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al.
13 * Thanks to Realtek for their support!
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License version 2 as
17 * published by the Free Software Foundation.
20 FILE_LICENCE(GPL2_ONLY);
27 #include <ipxe/iobuf.h>
28 #include <ipxe/malloc.h>
30 #include <ipxe/net80211.h>
31 #include <ipxe/netdevice.h>
32 #include <ipxe/threewire.h>
36 /* rtl818x_rates[hw rate number] = rate in 100kbps units */
37 static const u16 rtl818x_rates[] = {
38 10, 20, 55, 110, /* 802.11b */
39 60, 90, 120, 180, 240, 360, 480, 540, /* 802.11g */
40 0, 0, 0, 0, /* index safely using a value masked with 0xF */
42 #define RTL818X_NR_B_RATES 4
43 #define RTL818X_NR_RATES 12
45 /* used by RF drivers */
46 void rtl818x_write_phy(struct net80211_device *dev, u8 addr, u32 data)
48 struct rtl818x_priv *priv = dev->priv;
52 buf = (data << 8) | addr;
54 rtl818x_iowrite32(priv, (u32 *)&priv->map->PHY[0], buf | 0x80);
56 rtl818x_iowrite32(priv, (u32 *)&priv->map->PHY[0], buf);
57 if (rtl818x_ioread8(priv, &priv->map->PHY[2]) == (data & 0xFF))
62 static void rtl818x_handle_rx(struct net80211_device *dev)
64 struct rtl818x_priv *priv = dev->priv;
65 unsigned int count = RTL818X_RX_RING_SIZE;
68 struct rtl818x_rx_desc *entry = &priv->rx_ring[priv->rx_idx];
69 struct io_buffer *iob = priv->rx_buf[priv->rx_idx];
70 u32 flags = le32_to_cpu(entry->flags);
72 if (flags & RTL818X_RX_DESC_FLAG_OWN)
75 if (flags & (RTL818X_RX_DESC_FLAG_DMA_FAIL |
76 RTL818X_RX_DESC_FLAG_FOF |
77 RTL818X_RX_DESC_FLAG_RX_ERR)) {
78 /* This is crappy hardware. The Linux driver
79 doesn't even log these. */
81 } else if (flags & RTL818X_RX_DESC_FLAG_CRC32_ERR) {
82 /* This is actually a corrupt packet. */
83 DBG2("rtl818x RX:%d CRC fail: flags %08x\n",
85 net80211_rx_err(dev, NULL, EIO);
87 u32 flags2 = le32_to_cpu(entry->flags2);
88 struct io_buffer *new_iob = alloc_iob(MAX_RX_SIZE);
90 net80211_rx_err(dev, NULL, ENOMEM);
94 DBGP("rtl818x RX:%d success: flags %08x %08x\n",
95 priv->rx_idx, flags, flags2);
97 iob_put(iob, flags & 0xFFF);
99 net80211_rx(dev, iob, (flags2 >> 8) & 0x7f,
100 rtl818x_rates[(flags >> 20) & 0xf]);
103 priv->rx_buf[priv->rx_idx] = iob;
107 entry->rx_buf = cpu_to_le32(virt_to_bus(iob->data));
108 entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN | MAX_RX_SIZE);
110 if (priv->rx_idx == RTL818X_RX_RING_SIZE - 1)
111 entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
113 priv->rx_idx = (priv->rx_idx + 1) % RTL818X_RX_RING_SIZE;
117 static void rtl818x_handle_tx(struct net80211_device *dev)
119 struct rtl818x_priv *priv = dev->priv;
120 unsigned int count = RTL818X_TX_RING_SIZE;
123 struct rtl818x_tx_desc *entry = &priv->tx_ring[priv->tx_cons];
124 struct io_buffer *iob = priv->tx_buf[priv->tx_cons];
125 u32 flags = le32_to_cpu(entry->flags);
128 if ((flags & RTL818X_TX_DESC_FLAG_OWN) || !iob)
132 if (!(flags & RTL818X_TX_DESC_FLAG_TX_OK)) {
133 /* our packet was not ACKed properly */
137 net80211_tx_complete(dev, iob, flags & 0xFF, rc);
139 priv->tx_buf[priv->tx_cons] = NULL;
140 priv->tx_cons = (priv->tx_cons + 1) % RTL818X_TX_RING_SIZE;
144 static void rtl818x_poll(struct net80211_device *dev)
146 struct rtl818x_priv *priv = dev->priv;
147 u16 reg = rtl818x_ioread16(priv, &priv->map->INT_STATUS);
152 rtl818x_iowrite16(priv, &priv->map->INT_STATUS, reg);
154 if (reg & (RTL818X_INT_TXN_OK | RTL818X_INT_TXN_ERR))
155 rtl818x_handle_tx(dev);
157 if (reg & (RTL818X_INT_RX_OK | RTL818X_INT_RX_ERR))
158 rtl818x_handle_rx(dev);
161 #define DIV_ROUND_UP(n,d) (((n)+(d)-1)/(d))
163 static int rtl818x_tx(struct net80211_device *dev, struct io_buffer *iob)
165 struct rtl818x_priv *priv = dev->priv;
166 struct rtl818x_tx_desc *entry;
169 int len = iob_len(iob);
171 tx_flags = RTL818X_TX_DESC_FLAG_OWN | RTL818X_TX_DESC_FLAG_FS |
172 RTL818X_TX_DESC_FLAG_LS | (priv->hw_rate << 24) | len;
175 tx_flags |= RTL818X_TX_DESC_FLAG_DMA |
176 RTL818X_TX_DESC_FLAG_NO_ENC;
178 unsigned int remainder;
180 plcp_len = DIV_ROUND_UP(16 * (len + 4),
181 (dev->rates[dev->rate] * 2) / 10);
182 remainder = (16 * (len + 4)) %
183 ((dev->rates[dev->rate] * 2) / 10);
185 if (remainder > 0 && remainder <= 6)
189 entry = &priv->tx_ring[priv->tx_prod];
191 if (dev->phy_flags & NET80211_PHY_USE_PROTECTION) {
192 tx_flags |= RTL818X_TX_DESC_FLAG_CTS;
193 tx_flags |= priv->hw_rtscts_rate << 19;
194 entry->rts_duration = net80211_cts_duration(dev, len);
196 entry->rts_duration = 0;
199 if (entry->flags & RTL818X_TX_DESC_FLAG_OWN) {
200 /* card hasn't processed the old packet yet! */
204 priv->tx_buf[priv->tx_prod] = iob;
205 priv->tx_prod = (priv->tx_prod + 1) % RTL818X_TX_RING_SIZE;
207 entry->plcp_len = cpu_to_le16(plcp_len);
208 entry->tx_buf = cpu_to_le32(virt_to_bus(iob->data));
209 entry->frame_len = cpu_to_le32(len);
210 entry->flags2 = /* alternate retry rate in 100kbps << 4 */ 0;
211 entry->retry_limit = RTL818X_MAX_RETRIES;
212 entry->flags = cpu_to_le32(tx_flags);
214 rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, (1 << 5));
219 void rtl818x_set_anaparam(struct rtl818x_priv *priv, u32 anaparam)
223 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
224 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
225 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
226 reg | RTL818X_CONFIG3_ANAPARAM_WRITE);
227 rtl818x_iowrite32(priv, &priv->map->ANAPARAM, anaparam);
228 rtl818x_iowrite8(priv, &priv->map->CONFIG3,
229 reg & ~RTL818X_CONFIG3_ANAPARAM_WRITE);
230 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
233 static int rtl818x_init_hw(struct net80211_device *dev)
235 struct rtl818x_priv *priv = dev->priv;
238 rtl818x_iowrite8(priv, &priv->map->CMD, 0);
239 rtl818x_ioread8(priv, &priv->map->CMD);
243 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
244 rtl818x_ioread8(priv, &priv->map->CMD);
246 reg = rtl818x_ioread8(priv, &priv->map->CMD);
248 reg |= RTL818X_CMD_RESET;
249 rtl818x_iowrite8(priv, &priv->map->CMD, RTL818X_CMD_RESET);
250 rtl818x_ioread8(priv, &priv->map->CMD);
253 /* check success of reset */
254 if (rtl818x_ioread8(priv, &priv->map->CMD) & RTL818X_CMD_RESET) {
255 DBG("rtl818x %s: reset timeout!\n", dev->netdev->name);
259 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_LOAD);
260 rtl818x_ioread8(priv, &priv->map->CMD);
263 if (rtl818x_ioread8(priv, &priv->map->CONFIG3) & (1 << 3)) {
265 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
267 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg);
268 reg = rtl818x_ioread16(priv, &priv->map->FEMR);
269 reg |= (1 << 15) | (1 << 14) | (1 << 4);
270 rtl818x_iowrite16(priv, &priv->map->FEMR, reg);
273 rtl818x_iowrite8(priv, &priv->map->MSR, 0);
276 rtl818x_set_anaparam(priv, priv->anaparam);
278 rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma);
279 rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring_dma);
281 /* TODO: necessary? specs indicate not */
282 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
283 reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
284 rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg & ~(1 << 3));
286 reg = rtl818x_ioread8(priv, &priv->map->CONFIG2);
287 rtl818x_iowrite8(priv, &priv->map->CONFIG2, reg | (1 << 4));
289 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
291 /* TODO: set CONFIG5 for calibrating AGC on rtl8180 + philips radio? */
293 /* TODO: turn off hw wep on rtl8180 */
295 rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
298 rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
299 rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
300 rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
302 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
304 /* TODO: set ClkRun enable? necessary? */
305 reg = rtl818x_ioread8(priv, &priv->map->GP_ENABLE);
306 rtl818x_iowrite8(priv, &priv->map->GP_ENABLE, reg & ~(1 << 6));
307 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
308 reg = rtl818x_ioread8(priv, &priv->map->CONFIG3);
309 rtl818x_iowrite8(priv, &priv->map->CONFIG3, reg | (1 << 2));
310 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
312 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x1);
313 rtl818x_iowrite8(priv, &priv->map->SECURITY, 0);
315 rtl818x_iowrite8(priv, &priv->map->PHY_DELAY, 0x6);
316 rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, 0x4C);
321 rtl818x_iowrite16(priv, &priv->map->BRSR, 0x01F3);
325 static int rtl818x_init_rx_ring(struct net80211_device *dev)
327 struct rtl818x_priv *priv = dev->priv;
328 struct rtl818x_rx_desc *entry;
331 priv->rx_ring = malloc_dma(sizeof(*priv->rx_ring) * RTL818X_RX_RING_SIZE,
333 priv->rx_ring_dma = virt_to_bus(priv->rx_ring);
334 if (!priv->rx_ring) {
335 DBG("rtl818x %s: cannot allocate RX ring\n", dev->netdev->name);
339 memset(priv->rx_ring, 0, sizeof(*priv->rx_ring) * RTL818X_RX_RING_SIZE);
342 for (i = 0; i < RTL818X_RX_RING_SIZE; i++) {
343 struct io_buffer *iob = alloc_iob(MAX_RX_SIZE);
344 entry = &priv->rx_ring[i];
348 priv->rx_buf[i] = iob;
349 entry->rx_buf = cpu_to_le32(virt_to_bus(iob->data));
350 entry->flags = cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN |
353 entry->flags |= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR);
357 static void rtl818x_free_rx_ring(struct net80211_device *dev)
359 struct rtl818x_priv *priv = dev->priv;
362 for (i = 0; i < RTL818X_RX_RING_SIZE; i++) {
363 free_iob(priv->rx_buf[i]);
364 priv->rx_buf[i] = NULL;
367 free_dma(priv->rx_ring, sizeof(*priv->rx_ring) * RTL818X_RX_RING_SIZE);
368 priv->rx_ring = NULL;
371 static int rtl818x_init_tx_ring(struct net80211_device *dev)
373 struct rtl818x_priv *priv = dev->priv;
376 priv->tx_ring = malloc_dma(sizeof(*priv->tx_ring) * RTL818X_TX_RING_SIZE,
378 priv->tx_ring_dma = virt_to_bus(priv->tx_ring);
379 if (!priv->tx_ring) {
380 DBG("rtl818x %s: cannot allocate TX ring\n", dev->netdev->name);
384 memset(priv->tx_ring, 0, sizeof(*priv->tx_ring) * RTL818X_TX_RING_SIZE);
385 priv->tx_prod = priv->tx_cons = 0;
387 for (i = 0; i < RTL818X_TX_RING_SIZE; i++)
388 priv->tx_ring[i].next_tx_desc = cpu_to_le32(priv->tx_ring_dma +
389 ((i + 1) % RTL818X_TX_RING_SIZE) * sizeof(*priv->tx_ring));
394 static void rtl818x_free_tx_ring(struct net80211_device *dev)
396 struct rtl818x_priv *priv = dev->priv;
399 for (i = 0; i < RTL818X_TX_RING_SIZE; i++) {
401 net80211_tx_complete(dev, priv->tx_buf[i], 0, ECANCELED);
402 priv->tx_buf[i] = NULL;
405 free_dma(priv->tx_ring, sizeof(*priv->tx_ring) * RTL818X_TX_RING_SIZE);
406 priv->tx_ring = NULL;
409 static void rtl818x_irq(struct net80211_device *dev, int enable)
411 struct rtl818x_priv *priv = dev->priv;
412 rtl818x_iowrite16(priv, &priv->map->INT_MASK, enable? 0xFFFF : 0);
415 /* Sets the MAC address of the card. */
416 static void rtl818x_set_hwaddr(struct net80211_device *dev, u8 *hwaddr)
418 struct rtl818x_priv *priv = dev->priv;
419 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
420 rtl818x_iowrite32(priv, (u32 *)&priv->map->MAC[0],
421 le32_to_cpu(*(u32 *)hwaddr));
422 rtl818x_iowrite16(priv, (u16 *)&priv->map->MAC[4],
423 le16_to_cpu(*(u16 *)(hwaddr + 4)));
424 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
427 static int rtl818x_start(struct net80211_device *dev)
429 struct rtl818x_priv *priv = dev->priv;
433 ret = rtl818x_init_rx_ring(dev);
437 ret = rtl818x_init_tx_ring(dev);
441 ret = rtl818x_init_hw(dev);
445 rtl818x_set_hwaddr(dev, dev->netdev->ll_addr);
447 rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma);
448 rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring_dma);
450 rtl818x_iowrite16(priv, &priv->map->INT_MASK, 0);
452 rtl818x_iowrite32(priv, &priv->map->MAR[0], ~0);
453 rtl818x_iowrite32(priv, &priv->map->MAR[1], ~0);
455 reg = RTL818X_RX_CONF_ONLYERLPKT |
456 RTL818X_RX_CONF_RX_AUTORESETPHY |
457 RTL818X_RX_CONF_MGMT |
458 RTL818X_RX_CONF_DATA |
459 (7 << 8 /* MAX RX DMA */) |
460 RTL818X_RX_CONF_BROADCAST |
461 RTL818X_RX_CONF_NICMAC;
464 reg |= RTL818X_RX_CONF_CSDM1 | RTL818X_RX_CONF_CSDM2;
466 reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE1)
467 ? RTL818X_RX_CONF_CSDM1 : 0;
468 reg |= (priv->rfparam & RF_PARAM_CARRIERSENSE2)
469 ? RTL818X_RX_CONF_CSDM2 : 0;
473 rtl818x_iowrite32(priv, &priv->map->RX_CONF, reg);
476 reg = rtl818x_ioread8(priv, &priv->map->CW_CONF);
477 reg &= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT;
478 reg |= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT;
479 rtl818x_iowrite8(priv, &priv->map->CW_CONF, reg);
481 reg = rtl818x_ioread8(priv, &priv->map->TX_AGC_CTL);
482 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT;
483 reg &= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT;
484 reg |= RTL818X_TX_AGC_CTL_FEEDBACK_ANT;
485 rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
487 /* disable early TX */
488 rtl818x_iowrite8(priv, (u8 *)priv->map + 0xec, 0x3f);
491 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
492 reg |= (6 << 21 /* MAX TX DMA */) |
493 RTL818X_TX_CONF_NO_ICV;
496 reg &= ~RTL818X_TX_CONF_PROBE_DTS;
498 reg &= ~RTL818X_TX_CONF_HW_SEQNUM;
500 /* different meaning, same value on both rtl8185 and rtl8180 */
501 reg &= ~RTL818X_TX_CONF_SAT_HWPLCP;
503 rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg);
505 reg = rtl818x_ioread8(priv, &priv->map->CMD);
506 reg |= RTL818X_CMD_RX_ENABLE;
507 reg |= RTL818X_CMD_TX_ENABLE;
508 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
510 DBG("%s rtl818x: started\n", dev->netdev->name);
515 rtl818x_free_rx_ring(dev);
517 rtl818x_free_tx_ring(dev);
519 DBG("%s rtl818x: failed to start\n", dev->netdev->name);
524 static void rtl818x_stop(struct net80211_device *dev)
526 struct rtl818x_priv *priv = dev->priv;
531 reg = rtl818x_ioread8(priv, &priv->map->CMD);
532 reg &= ~RTL818X_CMD_TX_ENABLE;
533 reg &= ~RTL818X_CMD_RX_ENABLE;
534 rtl818x_iowrite8(priv, &priv->map->CMD, reg);
538 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
539 reg = rtl818x_ioread8(priv, &priv->map->CONFIG4);
540 rtl818x_iowrite8(priv, &priv->map->CONFIG4, reg | RTL818X_CONFIG4_VCOOFF);
541 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
543 rtl818x_free_rx_ring(dev);
544 rtl818x_free_tx_ring(dev);
547 static int rtl818x_config(struct net80211_device *dev, int changed)
549 struct rtl818x_priv *priv = dev->priv;
552 if (changed & NET80211_CFG_CHANNEL)
553 priv->rf->set_chan(dev, &dev->channels[dev->channel]);
555 if (changed & NET80211_CFG_ASSOC) {
556 for (i = 0; i < ETH_ALEN; i++)
557 rtl818x_iowrite8(priv, &priv->map->BSSID[i], dev->bssid[i]);
558 rtl818x_iowrite8(priv, &priv->map->MSR,
559 dev->state & NET80211_ASSOCIATED?
560 RTL818X_MSR_INFRA : RTL818X_MSR_NO_LINK);
563 if (changed & NET80211_CFG_PHY_PARAMS)
564 priv->rf->conf_erp(dev);
566 if (changed & NET80211_CFG_RATE) {
567 /* figure out the hardware rate number for the new
570 for (hw_rate = 0; hw_rate < RTL818X_NR_RATES &&
571 rtl818x_rates[hw_rate] != dev->rates[dev->rate];
574 if (hw_rate >= RTL818X_NR_RATES)
577 priv->hw_rate = hw_rate;
579 /* and the RTS/CTS rate */
580 for (hw_rate = 0; hw_rate < RTL818X_NR_RATES &&
581 rtl818x_rates[hw_rate] !=
582 dev->rates[dev->rtscts_rate];
585 if (hw_rate >= RTL818X_NR_RATES)
586 hw_rate = priv->hw_rate;
588 priv->hw_rtscts_rate = hw_rate;
594 static const u8 rtl818x_eeprom_bits[] = {
595 [SPI_BIT_SCLK] = RTL818X_EEPROM_CMD_CK,
596 [SPI_BIT_MISO] = RTL818X_EEPROM_CMD_READ,
597 [SPI_BIT_MOSI] = RTL818X_EEPROM_CMD_WRITE,
598 [SPI_BIT_SS(0)] = RTL818X_EEPROM_CMD_CS,
601 static int rtl818x_spi_read_bit(struct bit_basher *basher, unsigned int bit_id)
603 struct rtl818x_priv *priv = container_of(basher, struct rtl818x_priv,
606 u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
607 return reg & rtl818x_eeprom_bits[bit_id];
610 static void rtl818x_spi_write_bit(struct bit_basher *basher,
611 unsigned int bit_id, unsigned long data)
613 struct rtl818x_priv *priv = container_of(basher, struct rtl818x_priv,
616 u8 reg = rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
617 u8 mask = rtl818x_eeprom_bits[bit_id];
618 reg = (reg & ~mask) | (data & mask);
620 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, reg);
622 rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
626 static struct bit_basher_operations rtl818x_basher_ops = {
627 .read = rtl818x_spi_read_bit,
628 .write = rtl818x_spi_write_bit,
632 static const char *rtl818x_rf_names[] = {
634 "Intersil", "RFMD", /* unsupported 1-2 */
635 "SA2400", "max2820", "GRF5101", /* supported 3-5 */
636 NULL, NULL, NULL, /* no 6-8 */
637 "RTL8225", /* supported 9 */
638 "RTL8255", /* unsupported 10 */
640 #define RTL818X_NR_RF_NAMES 11
643 struct net80211_device_operations rtl818x_operations = {
644 .open = rtl818x_start,
645 .close = rtl818x_stop,
646 .transmit = rtl818x_tx,
647 .poll = rtl818x_poll,
649 .config = rtl818x_config,
652 int rtl818x_probe(struct pci_device *pdev )
654 struct net80211_device *dev;
655 struct rtl818x_priv *priv;
656 struct rtl818x_rf_ops *rf;
658 const char *chip_name;
661 struct net80211_hw_info *hwinfo;
663 hwinfo = zalloc(sizeof(*hwinfo));
665 DBG("rtl818x: hwinfo alloc failed\n");
669 adjust_pci_device(pdev);
671 dev = net80211_alloc(sizeof(*priv));
673 DBG("rtl818x: net80211 alloc failed\n");
679 dev->netdev->dev = &pdev->dev;
681 priv->map = (struct rtl818x_csr *)pdev->ioaddr;
683 DBG("rtl818x: cannot find device memory\n");
688 reg = rtl818x_ioread32(priv, &priv->map->TX_CONF);
689 reg &= RTL818X_TX_CONF_HWVER_MASK;
691 case RTL818X_TX_CONF_R8180_ABCD:
694 case RTL818X_TX_CONF_R8180_F:
697 case RTL818X_TX_CONF_R8185_ABC:
700 case RTL818X_TX_CONF_R8185_D:
704 DBG("rtl818x: Unknown chip! (0x%x)\n", reg >> 25);
709 priv->r8185 = reg & RTL818X_TX_CONF_R8185_ABC;
711 hwinfo->bands = NET80211_BAND_BIT_2GHZ;
712 hwinfo->flags = NET80211_HW_RX_HAS_FCS;
713 hwinfo->signal_type = NET80211_SIGNAL_ARBITRARY;
714 hwinfo->signal_max = 65;
715 hwinfo->channel_change_time = 1000;
717 memcpy(hwinfo->rates[NET80211_BAND_2GHZ], rtl818x_rates,
718 sizeof(*rtl818x_rates) * RTL818X_NR_RATES);
721 hwinfo->modes = NET80211_MODE_B | NET80211_MODE_G;
722 hwinfo->nr_rates[NET80211_BAND_2GHZ] = RTL818X_NR_RATES;
724 hwinfo->modes = NET80211_MODE_B;
725 hwinfo->nr_rates[NET80211_BAND_2GHZ] = RTL818X_NR_B_RATES;
728 priv->spibit.basher.op = &rtl818x_basher_ops;
729 priv->spibit.bus.mode = SPI_MODE_THREEWIRE;
730 init_spi_bit_basher(&priv->spibit);
732 DBG2("rtl818x RX_CONF: %08x\n", rtl818x_ioread32(priv, &priv->map->RX_CONF));
734 if (rtl818x_ioread32(priv, &priv->map->RX_CONF) & (1 << 6))
735 init_at93c66(&priv->eeprom, 16);
737 init_at93c46(&priv->eeprom, 16);
738 priv->eeprom.bus = &priv->spibit.bus;
740 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_PROGRAM);
741 rtl818x_ioread8(priv, &priv->map->EEPROM_CMD);
744 nvs_read(&priv->eeprom.nvs, 0x06, &eeprom_val, 2);
745 DBG2("rtl818x eeprom val = %04x\n", eeprom_val);
749 for_each_table_entry(rf, RTL818X_RF_DRIVERS) {
750 if (rf->id == eeprom_val) {
758 if (eeprom_val < RTL818X_NR_RF_NAMES &&
759 rtl818x_rf_names[eeprom_val] != NULL)
760 DBG("rtl818x: %s RF frontend not supported!\n",
761 rtl818x_rf_names[eeprom_val]);
763 DBG("rtl818x: RF frontend #%d not recognized!\n",
771 nvs_read(&priv->eeprom.nvs, 0x17, &eeprom_val, 2);
772 priv->csthreshold = eeprom_val >> 8;
774 nvs_read(&priv->eeprom.nvs, 0xD, &priv->anaparam, 4);
775 nvs_read(&priv->eeprom.nvs, 0x19, &priv->rfparam, 2);
776 priv->anaparam = le32_to_cpu(priv->anaparam);
777 priv->rfparam = le16_to_cpu(priv->rfparam);
780 /* read the MAC address */
781 nvs_read(&priv->eeprom.nvs, 0x7, hwinfo->hwaddr, 6);
784 for (i = 0; i < 14; i += 2) {
786 nvs_read(&priv->eeprom.nvs, 0x10 + (i >> 1), &txpwr, 2);
787 priv->txpower[i] = txpwr & 0xFF;
788 priv->txpower[i + 1] = txpwr >> 8;
793 for (i = 0; i < 14; i += 2) {
795 nvs_read(&priv->eeprom.nvs, 0x20 + (i >> 1), &txpwr, 2);
796 priv->txpower[i] |= (txpwr & 0xFF) << 8;
797 priv->txpower[i + 1] |= txpwr & 0xFF00;
801 rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
803 err = net80211_register(dev, &rtl818x_operations, hwinfo);
805 DBG("rtl818x: cannot register device\n");
811 DBG("rtl818x: Realtek RTL818%s (RF chip %s) with address %s\n",
812 chip_name, priv->rf->name, netdev_addr(dev->netdev));
817 pci_set_drvdata(pdev, NULL);
823 void rtl818x_remove(struct pci_device *pdev)
825 struct net80211_device *dev = pci_get_drvdata(pdev);
830 net80211_unregister(dev);