3 * Linux device driver for RTL8180 / RTL8185
5 * Copyright 2007 Michael Wu <flamingice@sourmilk.net>
6 * Copyright 2007 Andrea Merello <andreamrl@tiscali.it>
8 * Based on the r8180 driver, which is:
9 * Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al.
11 * Thanks to Realtek for their support!
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
18 #include <linux/init.h>
19 #include <linux/pci.h>
20 #include <linux/slab.h>
21 #include <linux/delay.h>
22 #include <linux/etherdevice.h>
23 #include <linux/eeprom_93cx6.h>
24 #include <net/mac80211.h>
27 #include "rtl8180_rtl8225.h"
28 #include "rtl8180_sa2400.h"
29 #include "rtl8180_max2820.h"
30 #include "rtl8180_grf5101.h"
32 MODULE_AUTHOR("Michael Wu <flamingice@sourmilk.net>");
33 MODULE_AUTHOR("Andrea Merello <andreamrl@tiscali.it>");
34 MODULE_DESCRIPTION("RTL8180 / RTL8185 PCI wireless driver");
35 MODULE_LICENSE("GPL");
37 static DEFINE_PCI_DEVICE_TABLE(rtl8180_table
) = {
39 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK
, 0x8185) },
40 { PCI_DEVICE(PCI_VENDOR_ID_BELKIN
, 0x700f) },
41 { PCI_DEVICE(PCI_VENDOR_ID_BELKIN
, 0x701f) },
44 { PCI_DEVICE(PCI_VENDOR_ID_REALTEK
, 0x8180) },
45 { PCI_DEVICE(0x1799, 0x6001) },
46 { PCI_DEVICE(0x1799, 0x6020) },
47 { PCI_DEVICE(PCI_VENDOR_ID_DLINK
, 0x3300) },
51 MODULE_DEVICE_TABLE(pci
, rtl8180_table
);
53 static const struct ieee80211_rate rtl818x_rates
[] = {
54 { .bitrate
= 10, .hw_value
= 0, },
55 { .bitrate
= 20, .hw_value
= 1, },
56 { .bitrate
= 55, .hw_value
= 2, },
57 { .bitrate
= 110, .hw_value
= 3, },
58 { .bitrate
= 60, .hw_value
= 4, },
59 { .bitrate
= 90, .hw_value
= 5, },
60 { .bitrate
= 120, .hw_value
= 6, },
61 { .bitrate
= 180, .hw_value
= 7, },
62 { .bitrate
= 240, .hw_value
= 8, },
63 { .bitrate
= 360, .hw_value
= 9, },
64 { .bitrate
= 480, .hw_value
= 10, },
65 { .bitrate
= 540, .hw_value
= 11, },
68 static const struct ieee80211_channel rtl818x_channels
[] = {
69 { .center_freq
= 2412 },
70 { .center_freq
= 2417 },
71 { .center_freq
= 2422 },
72 { .center_freq
= 2427 },
73 { .center_freq
= 2432 },
74 { .center_freq
= 2437 },
75 { .center_freq
= 2442 },
76 { .center_freq
= 2447 },
77 { .center_freq
= 2452 },
78 { .center_freq
= 2457 },
79 { .center_freq
= 2462 },
80 { .center_freq
= 2467 },
81 { .center_freq
= 2472 },
82 { .center_freq
= 2484 },
86 void rtl8180_write_phy(struct ieee80211_hw
*dev
, u8 addr
, u32 data
)
88 struct rtl8180_priv
*priv
= dev
->priv
;
92 buf
= (data
<< 8) | addr
;
94 rtl818x_iowrite32(priv
, (__le32 __iomem
*)&priv
->map
->PHY
[0], buf
| 0x80);
96 rtl818x_iowrite32(priv
, (__le32 __iomem
*)&priv
->map
->PHY
[0], buf
);
97 if (rtl818x_ioread8(priv
, &priv
->map
->PHY
[2]) == (data
& 0xFF))
102 static void rtl8180_handle_rx(struct ieee80211_hw
*dev
)
104 struct rtl8180_priv
*priv
= dev
->priv
;
105 unsigned int count
= 32;
108 struct rtl8180_rx_desc
*entry
= &priv
->rx_ring
[priv
->rx_idx
];
109 struct sk_buff
*skb
= priv
->rx_buf
[priv
->rx_idx
];
110 u32 flags
= le32_to_cpu(entry
->flags
);
112 if (flags
& RTL818X_RX_DESC_FLAG_OWN
)
115 if (unlikely(flags
& (RTL818X_RX_DESC_FLAG_DMA_FAIL
|
116 RTL818X_RX_DESC_FLAG_FOF
|
117 RTL818X_RX_DESC_FLAG_RX_ERR
)))
120 u32 flags2
= le32_to_cpu(entry
->flags2
);
121 struct ieee80211_rx_status rx_status
= {0};
122 struct sk_buff
*new_skb
= dev_alloc_skb(MAX_RX_SIZE
);
124 if (unlikely(!new_skb
))
127 pci_unmap_single(priv
->pdev
,
128 *((dma_addr_t
*)skb
->cb
),
129 MAX_RX_SIZE
, PCI_DMA_FROMDEVICE
);
130 skb_put(skb
, flags
& 0xFFF);
132 rx_status
.antenna
= (flags2
>> 15) & 1;
133 /* TODO: improve signal/rssi reporting */
134 rx_status
.signal
= (flags2
>> 8) & 0x7F;
135 /* XXX: is this correct? */
136 rx_status
.rate_idx
= (flags
>> 20) & 0xF;
137 rx_status
.freq
= dev
->conf
.channel
->center_freq
;
138 rx_status
.band
= dev
->conf
.channel
->band
;
139 rx_status
.mactime
= le64_to_cpu(entry
->tsft
);
140 rx_status
.flag
|= RX_FLAG_TSFT
;
141 if (flags
& RTL818X_RX_DESC_FLAG_CRC32_ERR
)
142 rx_status
.flag
|= RX_FLAG_FAILED_FCS_CRC
;
144 memcpy(IEEE80211_SKB_RXCB(skb
), &rx_status
, sizeof(rx_status
));
145 ieee80211_rx_irqsafe(dev
, skb
);
148 priv
->rx_buf
[priv
->rx_idx
] = skb
;
149 *((dma_addr_t
*) skb
->cb
) =
150 pci_map_single(priv
->pdev
, skb_tail_pointer(skb
),
151 MAX_RX_SIZE
, PCI_DMA_FROMDEVICE
);
155 entry
->rx_buf
= cpu_to_le32(*((dma_addr_t
*)skb
->cb
));
156 entry
->flags
= cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN
|
158 if (priv
->rx_idx
== 31)
159 entry
->flags
|= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR
);
160 priv
->rx_idx
= (priv
->rx_idx
+ 1) % 32;
164 static void rtl8180_handle_tx(struct ieee80211_hw
*dev
, unsigned int prio
)
166 struct rtl8180_priv
*priv
= dev
->priv
;
167 struct rtl8180_tx_ring
*ring
= &priv
->tx_ring
[prio
];
169 while (skb_queue_len(&ring
->queue
)) {
170 struct rtl8180_tx_desc
*entry
= &ring
->desc
[ring
->idx
];
172 struct ieee80211_tx_info
*info
;
173 u32 flags
= le32_to_cpu(entry
->flags
);
175 if (flags
& RTL818X_TX_DESC_FLAG_OWN
)
178 ring
->idx
= (ring
->idx
+ 1) % ring
->entries
;
179 skb
= __skb_dequeue(&ring
->queue
);
180 pci_unmap_single(priv
->pdev
, le32_to_cpu(entry
->tx_buf
),
181 skb
->len
, PCI_DMA_TODEVICE
);
183 info
= IEEE80211_SKB_CB(skb
);
184 ieee80211_tx_info_clear_status(info
);
186 if (!(info
->flags
& IEEE80211_TX_CTL_NO_ACK
) &&
187 (flags
& RTL818X_TX_DESC_FLAG_TX_OK
))
188 info
->flags
|= IEEE80211_TX_STAT_ACK
;
190 info
->status
.rates
[0].count
= (flags
& 0xFF) + 1;
191 info
->status
.rates
[1].idx
= -1;
193 ieee80211_tx_status_irqsafe(dev
, skb
);
194 if (ring
->entries
- skb_queue_len(&ring
->queue
) == 2)
195 ieee80211_wake_queue(dev
, prio
);
199 static irqreturn_t
rtl8180_interrupt(int irq
, void *dev_id
)
201 struct ieee80211_hw
*dev
= dev_id
;
202 struct rtl8180_priv
*priv
= dev
->priv
;
205 spin_lock(&priv
->lock
);
206 reg
= rtl818x_ioread16(priv
, &priv
->map
->INT_STATUS
);
207 if (unlikely(reg
== 0xFFFF)) {
208 spin_unlock(&priv
->lock
);
212 rtl818x_iowrite16(priv
, &priv
->map
->INT_STATUS
, reg
);
214 if (reg
& (RTL818X_INT_TXB_OK
| RTL818X_INT_TXB_ERR
))
215 rtl8180_handle_tx(dev
, 3);
217 if (reg
& (RTL818X_INT_TXH_OK
| RTL818X_INT_TXH_ERR
))
218 rtl8180_handle_tx(dev
, 2);
220 if (reg
& (RTL818X_INT_TXN_OK
| RTL818X_INT_TXN_ERR
))
221 rtl8180_handle_tx(dev
, 1);
223 if (reg
& (RTL818X_INT_TXL_OK
| RTL818X_INT_TXL_ERR
))
224 rtl8180_handle_tx(dev
, 0);
226 if (reg
& (RTL818X_INT_RX_OK
| RTL818X_INT_RX_ERR
))
227 rtl8180_handle_rx(dev
);
229 spin_unlock(&priv
->lock
);
234 static int rtl8180_tx(struct ieee80211_hw
*dev
, struct sk_buff
*skb
)
236 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
237 struct ieee80211_hdr
*hdr
= (struct ieee80211_hdr
*)skb
->data
;
238 struct rtl8180_priv
*priv
= dev
->priv
;
239 struct rtl8180_tx_ring
*ring
;
240 struct rtl8180_tx_desc
*entry
;
242 unsigned int idx
, prio
;
247 __le16 rts_duration
= 0;
249 prio
= skb_get_queue_mapping(skb
);
250 ring
= &priv
->tx_ring
[prio
];
252 mapping
= pci_map_single(priv
->pdev
, skb
->data
,
253 skb
->len
, PCI_DMA_TODEVICE
);
255 tx_flags
= RTL818X_TX_DESC_FLAG_OWN
| RTL818X_TX_DESC_FLAG_FS
|
256 RTL818X_TX_DESC_FLAG_LS
|
257 (ieee80211_get_tx_rate(dev
, info
)->hw_value
<< 24) |
261 tx_flags
|= RTL818X_TX_DESC_FLAG_DMA
|
262 RTL818X_TX_DESC_FLAG_NO_ENC
;
264 rc_flags
= info
->control
.rates
[0].flags
;
265 if (rc_flags
& IEEE80211_TX_RC_USE_RTS_CTS
) {
266 tx_flags
|= RTL818X_TX_DESC_FLAG_RTS
;
267 tx_flags
|= ieee80211_get_rts_cts_rate(dev
, info
)->hw_value
<< 19;
268 } else if (rc_flags
& IEEE80211_TX_RC_USE_CTS_PROTECT
) {
269 tx_flags
|= RTL818X_TX_DESC_FLAG_CTS
;
270 tx_flags
|= ieee80211_get_rts_cts_rate(dev
, info
)->hw_value
<< 19;
273 if (rc_flags
& IEEE80211_TX_RC_USE_RTS_CTS
)
274 rts_duration
= ieee80211_rts_duration(dev
, priv
->vif
, skb
->len
,
278 unsigned int remainder
;
280 plcp_len
= DIV_ROUND_UP(16 * (skb
->len
+ 4),
281 (ieee80211_get_tx_rate(dev
, info
)->bitrate
* 2) / 10);
282 remainder
= (16 * (skb
->len
+ 4)) %
283 ((ieee80211_get_tx_rate(dev
, info
)->bitrate
* 2) / 10);
288 spin_lock_irqsave(&priv
->lock
, flags
);
290 if (info
->flags
& IEEE80211_TX_CTL_ASSIGN_SEQ
) {
291 if (info
->flags
& IEEE80211_TX_CTL_FIRST_FRAGMENT
)
293 hdr
->seq_ctrl
&= cpu_to_le16(IEEE80211_SCTL_FRAG
);
294 hdr
->seq_ctrl
|= cpu_to_le16(priv
->seqno
);
297 idx
= (ring
->idx
+ skb_queue_len(&ring
->queue
)) % ring
->entries
;
298 entry
= &ring
->desc
[idx
];
300 entry
->rts_duration
= rts_duration
;
301 entry
->plcp_len
= cpu_to_le16(plcp_len
);
302 entry
->tx_buf
= cpu_to_le32(mapping
);
303 entry
->frame_len
= cpu_to_le32(skb
->len
);
304 entry
->flags2
= info
->control
.rates
[1].idx
>= 0 ?
305 ieee80211_get_alt_retry_rate(dev
, info
, 0)->bitrate
<< 4 : 0;
306 entry
->retry_limit
= info
->control
.rates
[0].count
;
307 entry
->flags
= cpu_to_le32(tx_flags
);
308 __skb_queue_tail(&ring
->queue
, skb
);
309 if (ring
->entries
- skb_queue_len(&ring
->queue
) < 2)
310 ieee80211_stop_queue(dev
, prio
);
312 spin_unlock_irqrestore(&priv
->lock
, flags
);
314 rtl818x_iowrite8(priv
, &priv
->map
->TX_DMA_POLLING
, (1 << (prio
+ 4)));
319 void rtl8180_set_anaparam(struct rtl8180_priv
*priv
, u32 anaparam
)
323 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, RTL818X_EEPROM_CMD_CONFIG
);
324 reg
= rtl818x_ioread8(priv
, &priv
->map
->CONFIG3
);
325 rtl818x_iowrite8(priv
, &priv
->map
->CONFIG3
,
326 reg
| RTL818X_CONFIG3_ANAPARAM_WRITE
);
327 rtl818x_iowrite32(priv
, &priv
->map
->ANAPARAM
, anaparam
);
328 rtl818x_iowrite8(priv
, &priv
->map
->CONFIG3
,
329 reg
& ~RTL818X_CONFIG3_ANAPARAM_WRITE
);
330 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, RTL818X_EEPROM_CMD_NORMAL
);
333 static int rtl8180_init_hw(struct ieee80211_hw
*dev
)
335 struct rtl8180_priv
*priv
= dev
->priv
;
338 rtl818x_iowrite8(priv
, &priv
->map
->CMD
, 0);
339 rtl818x_ioread8(priv
, &priv
->map
->CMD
);
343 rtl818x_iowrite16(priv
, &priv
->map
->INT_MASK
, 0);
344 rtl818x_ioread8(priv
, &priv
->map
->CMD
);
346 reg
= rtl818x_ioread8(priv
, &priv
->map
->CMD
);
348 reg
|= RTL818X_CMD_RESET
;
349 rtl818x_iowrite8(priv
, &priv
->map
->CMD
, RTL818X_CMD_RESET
);
350 rtl818x_ioread8(priv
, &priv
->map
->CMD
);
353 /* check success of reset */
354 if (rtl818x_ioread8(priv
, &priv
->map
->CMD
) & RTL818X_CMD_RESET
) {
355 printk(KERN_ERR
"%s: reset timeout!\n", wiphy_name(dev
->wiphy
));
359 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, RTL818X_EEPROM_CMD_LOAD
);
360 rtl818x_ioread8(priv
, &priv
->map
->CMD
);
363 if (rtl818x_ioread8(priv
, &priv
->map
->CONFIG3
) & (1 << 3)) {
365 reg
= rtl818x_ioread8(priv
, &priv
->map
->CONFIG3
);
367 rtl818x_iowrite8(priv
, &priv
->map
->CONFIG3
, reg
);
368 reg
= rtl818x_ioread16(priv
, &priv
->map
->FEMR
);
369 reg
|= (1 << 15) | (1 << 14) | (1 << 4);
370 rtl818x_iowrite16(priv
, &priv
->map
->FEMR
, reg
);
373 rtl818x_iowrite8(priv
, &priv
->map
->MSR
, 0);
376 rtl8180_set_anaparam(priv
, priv
->anaparam
);
378 rtl818x_iowrite32(priv
, &priv
->map
->RDSAR
, priv
->rx_ring_dma
);
379 rtl818x_iowrite32(priv
, &priv
->map
->TBDA
, priv
->tx_ring
[3].dma
);
380 rtl818x_iowrite32(priv
, &priv
->map
->THPDA
, priv
->tx_ring
[2].dma
);
381 rtl818x_iowrite32(priv
, &priv
->map
->TNPDA
, priv
->tx_ring
[1].dma
);
382 rtl818x_iowrite32(priv
, &priv
->map
->TLPDA
, priv
->tx_ring
[0].dma
);
384 /* TODO: necessary? specs indicate not */
385 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, RTL818X_EEPROM_CMD_CONFIG
);
386 reg
= rtl818x_ioread8(priv
, &priv
->map
->CONFIG2
);
387 rtl818x_iowrite8(priv
, &priv
->map
->CONFIG2
, reg
& ~(1 << 3));
389 reg
= rtl818x_ioread8(priv
, &priv
->map
->CONFIG2
);
390 rtl818x_iowrite8(priv
, &priv
->map
->CONFIG2
, reg
| (1 << 4));
392 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, RTL818X_EEPROM_CMD_NORMAL
);
394 /* TODO: set CONFIG5 for calibrating AGC on rtl8180 + philips radio? */
396 /* TODO: turn off hw wep on rtl8180 */
398 rtl818x_iowrite32(priv
, &priv
->map
->INT_TIMEOUT
, 0);
401 rtl818x_iowrite8(priv
, &priv
->map
->WPA_CONF
, 0);
402 rtl818x_iowrite8(priv
, &priv
->map
->RATE_FALLBACK
, 0x81);
403 rtl818x_iowrite8(priv
, &priv
->map
->RESP_RATE
, (8 << 4) | 0);
405 rtl818x_iowrite16(priv
, &priv
->map
->BRSR
, 0x01F3);
407 /* TODO: set ClkRun enable? necessary? */
408 reg
= rtl818x_ioread8(priv
, &priv
->map
->GP_ENABLE
);
409 rtl818x_iowrite8(priv
, &priv
->map
->GP_ENABLE
, reg
& ~(1 << 6));
410 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, RTL818X_EEPROM_CMD_CONFIG
);
411 reg
= rtl818x_ioread8(priv
, &priv
->map
->CONFIG3
);
412 rtl818x_iowrite8(priv
, &priv
->map
->CONFIG3
, reg
| (1 << 2));
413 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, RTL818X_EEPROM_CMD_NORMAL
);
415 rtl818x_iowrite16(priv
, &priv
->map
->BRSR
, 0x1);
416 rtl818x_iowrite8(priv
, &priv
->map
->SECURITY
, 0);
418 rtl818x_iowrite8(priv
, &priv
->map
->PHY_DELAY
, 0x6);
419 rtl818x_iowrite8(priv
, &priv
->map
->CARRIER_SENSE_COUNTER
, 0x4C);
424 rtl818x_iowrite16(priv
, &priv
->map
->BRSR
, 0x01F3);
428 static int rtl8180_init_rx_ring(struct ieee80211_hw
*dev
)
430 struct rtl8180_priv
*priv
= dev
->priv
;
431 struct rtl8180_rx_desc
*entry
;
434 priv
->rx_ring
= pci_alloc_consistent(priv
->pdev
,
435 sizeof(*priv
->rx_ring
) * 32,
438 if (!priv
->rx_ring
|| (unsigned long)priv
->rx_ring
& 0xFF) {
439 printk(KERN_ERR
"%s: Cannot allocate RX ring\n",
440 wiphy_name(dev
->wiphy
));
444 memset(priv
->rx_ring
, 0, sizeof(*priv
->rx_ring
) * 32);
447 for (i
= 0; i
< 32; i
++) {
448 struct sk_buff
*skb
= dev_alloc_skb(MAX_RX_SIZE
);
450 entry
= &priv
->rx_ring
[i
];
454 priv
->rx_buf
[i
] = skb
;
455 mapping
= (dma_addr_t
*)skb
->cb
;
456 *mapping
= pci_map_single(priv
->pdev
, skb_tail_pointer(skb
),
457 MAX_RX_SIZE
, PCI_DMA_FROMDEVICE
);
458 entry
->rx_buf
= cpu_to_le32(*mapping
);
459 entry
->flags
= cpu_to_le32(RTL818X_RX_DESC_FLAG_OWN
|
462 entry
->flags
|= cpu_to_le32(RTL818X_RX_DESC_FLAG_EOR
);
466 static void rtl8180_free_rx_ring(struct ieee80211_hw
*dev
)
468 struct rtl8180_priv
*priv
= dev
->priv
;
471 for (i
= 0; i
< 32; i
++) {
472 struct sk_buff
*skb
= priv
->rx_buf
[i
];
476 pci_unmap_single(priv
->pdev
,
477 *((dma_addr_t
*)skb
->cb
),
478 MAX_RX_SIZE
, PCI_DMA_FROMDEVICE
);
482 pci_free_consistent(priv
->pdev
, sizeof(*priv
->rx_ring
) * 32,
483 priv
->rx_ring
, priv
->rx_ring_dma
);
484 priv
->rx_ring
= NULL
;
487 static int rtl8180_init_tx_ring(struct ieee80211_hw
*dev
,
488 unsigned int prio
, unsigned int entries
)
490 struct rtl8180_priv
*priv
= dev
->priv
;
491 struct rtl8180_tx_desc
*ring
;
495 ring
= pci_alloc_consistent(priv
->pdev
, sizeof(*ring
) * entries
, &dma
);
496 if (!ring
|| (unsigned long)ring
& 0xFF) {
497 printk(KERN_ERR
"%s: Cannot allocate TX ring (prio = %d)\n",
498 wiphy_name(dev
->wiphy
), prio
);
502 memset(ring
, 0, sizeof(*ring
)*entries
);
503 priv
->tx_ring
[prio
].desc
= ring
;
504 priv
->tx_ring
[prio
].dma
= dma
;
505 priv
->tx_ring
[prio
].idx
= 0;
506 priv
->tx_ring
[prio
].entries
= entries
;
507 skb_queue_head_init(&priv
->tx_ring
[prio
].queue
);
509 for (i
= 0; i
< entries
; i
++)
510 ring
[i
].next_tx_desc
=
511 cpu_to_le32((u32
)dma
+ ((i
+ 1) % entries
) * sizeof(*ring
));
516 static void rtl8180_free_tx_ring(struct ieee80211_hw
*dev
, unsigned int prio
)
518 struct rtl8180_priv
*priv
= dev
->priv
;
519 struct rtl8180_tx_ring
*ring
= &priv
->tx_ring
[prio
];
521 while (skb_queue_len(&ring
->queue
)) {
522 struct rtl8180_tx_desc
*entry
= &ring
->desc
[ring
->idx
];
523 struct sk_buff
*skb
= __skb_dequeue(&ring
->queue
);
525 pci_unmap_single(priv
->pdev
, le32_to_cpu(entry
->tx_buf
),
526 skb
->len
, PCI_DMA_TODEVICE
);
528 ring
->idx
= (ring
->idx
+ 1) % ring
->entries
;
531 pci_free_consistent(priv
->pdev
, sizeof(*ring
->desc
)*ring
->entries
,
532 ring
->desc
, ring
->dma
);
536 static int rtl8180_start(struct ieee80211_hw
*dev
)
538 struct rtl8180_priv
*priv
= dev
->priv
;
542 ret
= rtl8180_init_rx_ring(dev
);
546 for (i
= 0; i
< 4; i
++)
547 if ((ret
= rtl8180_init_tx_ring(dev
, i
, 16)))
550 ret
= rtl8180_init_hw(dev
);
554 rtl818x_iowrite32(priv
, &priv
->map
->RDSAR
, priv
->rx_ring_dma
);
555 rtl818x_iowrite32(priv
, &priv
->map
->TBDA
, priv
->tx_ring
[3].dma
);
556 rtl818x_iowrite32(priv
, &priv
->map
->THPDA
, priv
->tx_ring
[2].dma
);
557 rtl818x_iowrite32(priv
, &priv
->map
->TNPDA
, priv
->tx_ring
[1].dma
);
558 rtl818x_iowrite32(priv
, &priv
->map
->TLPDA
, priv
->tx_ring
[0].dma
);
560 ret
= request_irq(priv
->pdev
->irq
, rtl8180_interrupt
,
561 IRQF_SHARED
, KBUILD_MODNAME
, dev
);
563 printk(KERN_ERR
"%s: failed to register IRQ handler\n",
564 wiphy_name(dev
->wiphy
));
568 rtl818x_iowrite16(priv
, &priv
->map
->INT_MASK
, 0xFFFF);
570 rtl818x_iowrite32(priv
, &priv
->map
->MAR
[0], ~0);
571 rtl818x_iowrite32(priv
, &priv
->map
->MAR
[1], ~0);
573 reg
= RTL818X_RX_CONF_ONLYERLPKT
|
574 RTL818X_RX_CONF_RX_AUTORESETPHY
|
575 RTL818X_RX_CONF_MGMT
|
576 RTL818X_RX_CONF_DATA
|
577 (7 << 8 /* MAX RX DMA */) |
578 RTL818X_RX_CONF_BROADCAST
|
579 RTL818X_RX_CONF_NICMAC
;
582 reg
|= RTL818X_RX_CONF_CSDM1
| RTL818X_RX_CONF_CSDM2
;
584 reg
|= (priv
->rfparam
& RF_PARAM_CARRIERSENSE1
)
585 ? RTL818X_RX_CONF_CSDM1
: 0;
586 reg
|= (priv
->rfparam
& RF_PARAM_CARRIERSENSE2
)
587 ? RTL818X_RX_CONF_CSDM2
: 0;
591 rtl818x_iowrite32(priv
, &priv
->map
->RX_CONF
, reg
);
594 reg
= rtl818x_ioread8(priv
, &priv
->map
->CW_CONF
);
595 reg
&= ~RTL818X_CW_CONF_PERPACKET_CW_SHIFT
;
596 reg
|= RTL818X_CW_CONF_PERPACKET_RETRY_SHIFT
;
597 rtl818x_iowrite8(priv
, &priv
->map
->CW_CONF
, reg
);
599 reg
= rtl818x_ioread8(priv
, &priv
->map
->TX_AGC_CTL
);
600 reg
&= ~RTL818X_TX_AGC_CTL_PERPACKET_GAIN_SHIFT
;
601 reg
&= ~RTL818X_TX_AGC_CTL_PERPACKET_ANTSEL_SHIFT
;
602 reg
|= RTL818X_TX_AGC_CTL_FEEDBACK_ANT
;
603 rtl818x_iowrite8(priv
, &priv
->map
->TX_AGC_CTL
, reg
);
605 /* disable early TX */
606 rtl818x_iowrite8(priv
, (u8 __iomem
*)priv
->map
+ 0xec, 0x3f);
609 reg
= rtl818x_ioread32(priv
, &priv
->map
->TX_CONF
);
610 reg
|= (6 << 21 /* MAX TX DMA */) |
611 RTL818X_TX_CONF_NO_ICV
;
614 reg
&= ~RTL818X_TX_CONF_PROBE_DTS
;
616 reg
&= ~RTL818X_TX_CONF_HW_SEQNUM
;
618 /* different meaning, same value on both rtl8185 and rtl8180 */
619 reg
&= ~RTL818X_TX_CONF_SAT_HWPLCP
;
621 rtl818x_iowrite32(priv
, &priv
->map
->TX_CONF
, reg
);
623 reg
= rtl818x_ioread8(priv
, &priv
->map
->CMD
);
624 reg
|= RTL818X_CMD_RX_ENABLE
;
625 reg
|= RTL818X_CMD_TX_ENABLE
;
626 rtl818x_iowrite8(priv
, &priv
->map
->CMD
, reg
);
631 rtl8180_free_rx_ring(dev
);
632 for (i
= 0; i
< 4; i
++)
633 if (priv
->tx_ring
[i
].desc
)
634 rtl8180_free_tx_ring(dev
, i
);
639 static void rtl8180_stop(struct ieee80211_hw
*dev
)
641 struct rtl8180_priv
*priv
= dev
->priv
;
645 rtl818x_iowrite16(priv
, &priv
->map
->INT_MASK
, 0);
647 reg
= rtl818x_ioread8(priv
, &priv
->map
->CMD
);
648 reg
&= ~RTL818X_CMD_TX_ENABLE
;
649 reg
&= ~RTL818X_CMD_RX_ENABLE
;
650 rtl818x_iowrite8(priv
, &priv
->map
->CMD
, reg
);
654 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, RTL818X_EEPROM_CMD_CONFIG
);
655 reg
= rtl818x_ioread8(priv
, &priv
->map
->CONFIG4
);
656 rtl818x_iowrite8(priv
, &priv
->map
->CONFIG4
, reg
| RTL818X_CONFIG4_VCOOFF
);
657 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, RTL818X_EEPROM_CMD_NORMAL
);
659 free_irq(priv
->pdev
->irq
, dev
);
661 rtl8180_free_rx_ring(dev
);
662 for (i
= 0; i
< 4; i
++)
663 rtl8180_free_tx_ring(dev
, i
);
666 static u64
rtl8180_get_tsf(struct ieee80211_hw
*dev
)
668 struct rtl8180_priv
*priv
= dev
->priv
;
670 return rtl818x_ioread32(priv
, &priv
->map
->TSFT
[0]) |
671 (u64
)(rtl818x_ioread32(priv
, &priv
->map
->TSFT
[1])) << 32;
674 void rtl8180_beacon_work(struct work_struct
*work
)
676 struct rtl8180_vif
*vif_priv
=
677 container_of(work
, struct rtl8180_vif
, beacon_work
.work
);
678 struct ieee80211_vif
*vif
=
679 container_of((void *)vif_priv
, struct ieee80211_vif
, drv_priv
);
680 struct ieee80211_hw
*dev
= vif_priv
->dev
;
681 struct ieee80211_mgmt
*mgmt
;
685 /* don't overflow the tx ring */
686 if (ieee80211_queue_stopped(dev
, 0))
689 /* grab a fresh beacon */
690 skb
= ieee80211_beacon_get(dev
, vif
);
693 * update beacon timestamp w/ TSF value
694 * TODO: make hardware update beacon timestamp
696 mgmt
= (struct ieee80211_mgmt
*)skb
->data
;
697 mgmt
->u
.beacon
.timestamp
= cpu_to_le64(rtl8180_get_tsf(dev
));
699 /* TODO: use actual beacon queue */
700 skb_set_queue_mapping(skb
, 0);
702 err
= rtl8180_tx(dev
, skb
);
707 * schedule next beacon
708 * TODO: use hardware support for beacon timing
710 schedule_delayed_work(&vif_priv
->beacon_work
,
711 usecs_to_jiffies(1024 * vif
->bss_conf
.beacon_int
));
714 static int rtl8180_add_interface(struct ieee80211_hw
*dev
,
715 struct ieee80211_vif
*vif
)
717 struct rtl8180_priv
*priv
= dev
->priv
;
718 struct rtl8180_vif
*vif_priv
;
721 * We only support one active interface at a time.
727 case NL80211_IFTYPE_STATION
:
728 case NL80211_IFTYPE_ADHOC
:
736 /* Initialize driver private area */
737 vif_priv
= (struct rtl8180_vif
*)&vif
->drv_priv
;
739 INIT_DELAYED_WORK(&vif_priv
->beacon_work
, rtl8180_beacon_work
);
740 vif_priv
->enable_beacon
= false;
742 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, RTL818X_EEPROM_CMD_CONFIG
);
743 rtl818x_iowrite32(priv
, (__le32 __iomem
*)&priv
->map
->MAC
[0],
744 le32_to_cpu(*(__le32
*)vif
->addr
));
745 rtl818x_iowrite16(priv
, (__le16 __iomem
*)&priv
->map
->MAC
[4],
746 le16_to_cpu(*(__le16
*)(vif
->addr
+ 4)));
747 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, RTL818X_EEPROM_CMD_NORMAL
);
752 static void rtl8180_remove_interface(struct ieee80211_hw
*dev
,
753 struct ieee80211_vif
*vif
)
755 struct rtl8180_priv
*priv
= dev
->priv
;
759 static int rtl8180_config(struct ieee80211_hw
*dev
, u32 changed
)
761 struct rtl8180_priv
*priv
= dev
->priv
;
762 struct ieee80211_conf
*conf
= &dev
->conf
;
764 priv
->rf
->set_chan(dev
, conf
);
769 static void rtl8180_bss_info_changed(struct ieee80211_hw
*dev
,
770 struct ieee80211_vif
*vif
,
771 struct ieee80211_bss_conf
*info
,
774 struct rtl8180_priv
*priv
= dev
->priv
;
775 struct rtl8180_vif
*vif_priv
;
778 vif_priv
= (struct rtl8180_vif
*)&vif
->drv_priv
;
780 if (changed
& BSS_CHANGED_BSSID
) {
781 for (i
= 0; i
< ETH_ALEN
; i
++)
782 rtl818x_iowrite8(priv
, &priv
->map
->BSSID
[i
],
785 if (is_valid_ether_addr(info
->bssid
))
786 rtl818x_iowrite8(priv
, &priv
->map
->MSR
,
789 rtl818x_iowrite8(priv
, &priv
->map
->MSR
,
790 RTL818X_MSR_NO_LINK
);
793 if (changed
& BSS_CHANGED_ERP_SLOT
&& priv
->rf
->conf_erp
)
794 priv
->rf
->conf_erp(dev
, info
);
796 if (changed
& BSS_CHANGED_BEACON_ENABLED
)
797 vif_priv
->enable_beacon
= info
->enable_beacon
;
799 if (changed
& (BSS_CHANGED_BEACON_ENABLED
| BSS_CHANGED_BEACON
)) {
800 cancel_delayed_work_sync(&vif_priv
->beacon_work
);
801 if (vif_priv
->enable_beacon
)
802 schedule_work(&vif_priv
->beacon_work
.work
);
806 static u64
rtl8180_prepare_multicast(struct ieee80211_hw
*dev
,
807 struct netdev_hw_addr_list
*mc_list
)
809 return netdev_hw_addr_list_count(mc_list
);
812 static void rtl8180_configure_filter(struct ieee80211_hw
*dev
,
813 unsigned int changed_flags
,
814 unsigned int *total_flags
,
817 struct rtl8180_priv
*priv
= dev
->priv
;
819 if (changed_flags
& FIF_FCSFAIL
)
820 priv
->rx_conf
^= RTL818X_RX_CONF_FCS
;
821 if (changed_flags
& FIF_CONTROL
)
822 priv
->rx_conf
^= RTL818X_RX_CONF_CTRL
;
823 if (changed_flags
& FIF_OTHER_BSS
)
824 priv
->rx_conf
^= RTL818X_RX_CONF_MONITOR
;
825 if (*total_flags
& FIF_ALLMULTI
|| multicast
> 0)
826 priv
->rx_conf
|= RTL818X_RX_CONF_MULTICAST
;
828 priv
->rx_conf
&= ~RTL818X_RX_CONF_MULTICAST
;
832 if (priv
->rx_conf
& RTL818X_RX_CONF_FCS
)
833 *total_flags
|= FIF_FCSFAIL
;
834 if (priv
->rx_conf
& RTL818X_RX_CONF_CTRL
)
835 *total_flags
|= FIF_CONTROL
;
836 if (priv
->rx_conf
& RTL818X_RX_CONF_MONITOR
)
837 *total_flags
|= FIF_OTHER_BSS
;
838 if (priv
->rx_conf
& RTL818X_RX_CONF_MULTICAST
)
839 *total_flags
|= FIF_ALLMULTI
;
841 rtl818x_iowrite32(priv
, &priv
->map
->RX_CONF
, priv
->rx_conf
);
844 static const struct ieee80211_ops rtl8180_ops
= {
846 .start
= rtl8180_start
,
847 .stop
= rtl8180_stop
,
848 .add_interface
= rtl8180_add_interface
,
849 .remove_interface
= rtl8180_remove_interface
,
850 .config
= rtl8180_config
,
851 .bss_info_changed
= rtl8180_bss_info_changed
,
852 .prepare_multicast
= rtl8180_prepare_multicast
,
853 .configure_filter
= rtl8180_configure_filter
,
854 .get_tsf
= rtl8180_get_tsf
,
857 static void rtl8180_eeprom_register_read(struct eeprom_93cx6
*eeprom
)
859 struct ieee80211_hw
*dev
= eeprom
->data
;
860 struct rtl8180_priv
*priv
= dev
->priv
;
861 u8 reg
= rtl818x_ioread8(priv
, &priv
->map
->EEPROM_CMD
);
863 eeprom
->reg_data_in
= reg
& RTL818X_EEPROM_CMD_WRITE
;
864 eeprom
->reg_data_out
= reg
& RTL818X_EEPROM_CMD_READ
;
865 eeprom
->reg_data_clock
= reg
& RTL818X_EEPROM_CMD_CK
;
866 eeprom
->reg_chip_select
= reg
& RTL818X_EEPROM_CMD_CS
;
869 static void rtl8180_eeprom_register_write(struct eeprom_93cx6
*eeprom
)
871 struct ieee80211_hw
*dev
= eeprom
->data
;
872 struct rtl8180_priv
*priv
= dev
->priv
;
875 if (eeprom
->reg_data_in
)
876 reg
|= RTL818X_EEPROM_CMD_WRITE
;
877 if (eeprom
->reg_data_out
)
878 reg
|= RTL818X_EEPROM_CMD_READ
;
879 if (eeprom
->reg_data_clock
)
880 reg
|= RTL818X_EEPROM_CMD_CK
;
881 if (eeprom
->reg_chip_select
)
882 reg
|= RTL818X_EEPROM_CMD_CS
;
884 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, reg
);
885 rtl818x_ioread8(priv
, &priv
->map
->EEPROM_CMD
);
889 static int __devinit
rtl8180_probe(struct pci_dev
*pdev
,
890 const struct pci_device_id
*id
)
892 struct ieee80211_hw
*dev
;
893 struct rtl8180_priv
*priv
;
894 unsigned long mem_addr
, mem_len
;
895 unsigned int io_addr
, io_len
;
897 struct eeprom_93cx6 eeprom
;
898 const char *chip_name
, *rf_name
= NULL
;
901 u8 mac_addr
[ETH_ALEN
];
903 err
= pci_enable_device(pdev
);
905 printk(KERN_ERR
"%s (rtl8180): Cannot enable new PCI device\n",
910 err
= pci_request_regions(pdev
, KBUILD_MODNAME
);
912 printk(KERN_ERR
"%s (rtl8180): Cannot obtain PCI resources\n",
917 io_addr
= pci_resource_start(pdev
, 0);
918 io_len
= pci_resource_len(pdev
, 0);
919 mem_addr
= pci_resource_start(pdev
, 1);
920 mem_len
= pci_resource_len(pdev
, 1);
922 if (mem_len
< sizeof(struct rtl818x_csr
) ||
923 io_len
< sizeof(struct rtl818x_csr
)) {
924 printk(KERN_ERR
"%s (rtl8180): Too short PCI resources\n",
930 if ((err
= pci_set_dma_mask(pdev
, DMA_BIT_MASK(32))) ||
931 (err
= pci_set_consistent_dma_mask(pdev
, DMA_BIT_MASK(32)))) {
932 printk(KERN_ERR
"%s (rtl8180): No suitable DMA available\n",
937 pci_set_master(pdev
);
939 dev
= ieee80211_alloc_hw(sizeof(*priv
), &rtl8180_ops
);
941 printk(KERN_ERR
"%s (rtl8180): ieee80211 alloc failed\n",
951 SET_IEEE80211_DEV(dev
, &pdev
->dev
);
952 pci_set_drvdata(pdev
, dev
);
954 priv
->map
= pci_iomap(pdev
, 1, mem_len
);
956 priv
->map
= pci_iomap(pdev
, 0, io_len
);
959 printk(KERN_ERR
"%s (rtl8180): Cannot map device memory\n",
964 BUILD_BUG_ON(sizeof(priv
->channels
) != sizeof(rtl818x_channels
));
965 BUILD_BUG_ON(sizeof(priv
->rates
) != sizeof(rtl818x_rates
));
967 memcpy(priv
->channels
, rtl818x_channels
, sizeof(rtl818x_channels
));
968 memcpy(priv
->rates
, rtl818x_rates
, sizeof(rtl818x_rates
));
970 priv
->band
.band
= IEEE80211_BAND_2GHZ
;
971 priv
->band
.channels
= priv
->channels
;
972 priv
->band
.n_channels
= ARRAY_SIZE(rtl818x_channels
);
973 priv
->band
.bitrates
= priv
->rates
;
974 priv
->band
.n_bitrates
= 4;
975 dev
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] = &priv
->band
;
977 dev
->flags
= IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING
|
978 IEEE80211_HW_RX_INCLUDES_FCS
|
979 IEEE80211_HW_SIGNAL_UNSPEC
;
980 dev
->vif_data_size
= sizeof(struct rtl8180_vif
);
981 dev
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
982 BIT(NL80211_IFTYPE_ADHOC
);
984 dev
->max_signal
= 65;
986 reg
= rtl818x_ioread32(priv
, &priv
->map
->TX_CONF
);
987 reg
&= RTL818X_TX_CONF_HWVER_MASK
;
989 case RTL818X_TX_CONF_R8180_ABCD
:
990 chip_name
= "RTL8180";
992 case RTL818X_TX_CONF_R8180_F
:
993 chip_name
= "RTL8180vF";
995 case RTL818X_TX_CONF_R8185_ABC
:
996 chip_name
= "RTL8185";
998 case RTL818X_TX_CONF_R8185_D
:
999 chip_name
= "RTL8185vD";
1002 printk(KERN_ERR
"%s (rtl8180): Unknown chip! (0x%x)\n",
1003 pci_name(pdev
), reg
>> 25);
1007 priv
->r8185
= reg
& RTL818X_TX_CONF_R8185_ABC
;
1009 priv
->band
.n_bitrates
= ARRAY_SIZE(rtl818x_rates
);
1010 pci_try_set_mwi(pdev
);
1014 eeprom
.register_read
= rtl8180_eeprom_register_read
;
1015 eeprom
.register_write
= rtl8180_eeprom_register_write
;
1016 if (rtl818x_ioread32(priv
, &priv
->map
->RX_CONF
) & (1 << 6))
1017 eeprom
.width
= PCI_EEPROM_WIDTH_93C66
;
1019 eeprom
.width
= PCI_EEPROM_WIDTH_93C46
;
1021 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, RTL818X_EEPROM_CMD_PROGRAM
);
1022 rtl818x_ioread8(priv
, &priv
->map
->EEPROM_CMD
);
1025 eeprom_93cx6_read(&eeprom
, 0x06, &eeprom_val
);
1027 switch (eeprom_val
) {
1028 case 1: rf_name
= "Intersil";
1030 case 2: rf_name
= "RFMD";
1032 case 3: priv
->rf
= &sa2400_rf_ops
;
1034 case 4: priv
->rf
= &max2820_rf_ops
;
1036 case 5: priv
->rf
= &grf5101_rf_ops
;
1038 case 9: priv
->rf
= rtl8180_detect_rf(dev
);
1041 rf_name
= "RTL8255";
1044 printk(KERN_ERR
"%s (rtl8180): Unknown RF! (0x%x)\n",
1045 pci_name(pdev
), eeprom_val
);
1050 printk(KERN_ERR
"%s (rtl8180): %s RF frontend not supported!\n",
1051 pci_name(pdev
), rf_name
);
1055 eeprom_93cx6_read(&eeprom
, 0x17, &eeprom_val
);
1056 priv
->csthreshold
= eeprom_val
>> 8;
1059 eeprom_93cx6_multiread(&eeprom
, 0xD, (__le16
*)&anaparam
, 2);
1060 priv
->anaparam
= le32_to_cpu(anaparam
);
1061 eeprom_93cx6_read(&eeprom
, 0x19, &priv
->rfparam
);
1064 eeprom_93cx6_multiread(&eeprom
, 0x7, (__le16
*)mac_addr
, 3);
1065 if (!is_valid_ether_addr(mac_addr
)) {
1066 printk(KERN_WARNING
"%s (rtl8180): Invalid hwaddr! Using"
1067 " randomly generated MAC addr\n", pci_name(pdev
));
1068 random_ether_addr(mac_addr
);
1070 SET_IEEE80211_PERM_ADDR(dev
, mac_addr
);
1073 for (i
= 0; i
< 14; i
+= 2) {
1075 eeprom_93cx6_read(&eeprom
, 0x10 + (i
>> 1), &txpwr
);
1076 priv
->channels
[i
].hw_value
= txpwr
& 0xFF;
1077 priv
->channels
[i
+ 1].hw_value
= txpwr
>> 8;
1082 for (i
= 0; i
< 14; i
+= 2) {
1084 eeprom_93cx6_read(&eeprom
, 0x20 + (i
>> 1), &txpwr
);
1085 priv
->channels
[i
].hw_value
|= (txpwr
& 0xFF) << 8;
1086 priv
->channels
[i
+ 1].hw_value
|= txpwr
& 0xFF00;
1090 rtl818x_iowrite8(priv
, &priv
->map
->EEPROM_CMD
, RTL818X_EEPROM_CMD_NORMAL
);
1092 spin_lock_init(&priv
->lock
);
1094 err
= ieee80211_register_hw(dev
);
1096 printk(KERN_ERR
"%s (rtl8180): Cannot register device\n",
1101 printk(KERN_INFO
"%s: hwaddr %pM, %s + %s\n",
1102 wiphy_name(dev
->wiphy
), mac_addr
,
1103 chip_name
, priv
->rf
->name
);
1111 pci_set_drvdata(pdev
, NULL
);
1112 ieee80211_free_hw(dev
);
1115 pci_release_regions(pdev
);
1116 pci_disable_device(pdev
);
1120 static void __devexit
rtl8180_remove(struct pci_dev
*pdev
)
1122 struct ieee80211_hw
*dev
= pci_get_drvdata(pdev
);
1123 struct rtl8180_priv
*priv
;
1128 ieee80211_unregister_hw(dev
);
1132 pci_iounmap(pdev
, priv
->map
);
1133 pci_release_regions(pdev
);
1134 pci_disable_device(pdev
);
1135 ieee80211_free_hw(dev
);
1139 static int rtl8180_suspend(struct pci_dev
*pdev
, pm_message_t state
)
1141 pci_save_state(pdev
);
1142 pci_set_power_state(pdev
, pci_choose_state(pdev
, state
));
1146 static int rtl8180_resume(struct pci_dev
*pdev
)
1148 pci_set_power_state(pdev
, PCI_D0
);
1149 pci_restore_state(pdev
);
1153 #endif /* CONFIG_PM */
1155 static struct pci_driver rtl8180_driver
= {
1156 .name
= KBUILD_MODNAME
,
1157 .id_table
= rtl8180_table
,
1158 .probe
= rtl8180_probe
,
1159 .remove
= __devexit_p(rtl8180_remove
),
1161 .suspend
= rtl8180_suspend
,
1162 .resume
= rtl8180_resume
,
1163 #endif /* CONFIG_PM */
1166 static int __init
rtl8180_init(void)
1168 return pci_register_driver(&rtl8180_driver
);
1171 static void __exit
rtl8180_exit(void)
1173 pci_unregister_driver(&rtl8180_driver
);
1176 module_init(rtl8180_init
);
1177 module_exit(rtl8180_exit
);