2 * drivers/net/wireless/mwl8k.c
3 * Driver for Marvell TOPDOG 802.11 Wireless cards
5 * Copyright (C) 2008, 2009, 2010 Marvell Semiconductor Inc.
7 * This file is licensed under the terms of the GNU General Public
8 * License version 2. This program is licensed "as is" without any
9 * warranty of any kind, whether express or implied.
12 #include <linux/init.h>
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/sched.h>
16 #include <linux/spinlock.h>
17 #include <linux/list.h>
18 #include <linux/pci.h>
19 #include <linux/delay.h>
20 #include <linux/completion.h>
21 #include <linux/etherdevice.h>
22 #include <linux/slab.h>
23 #include <net/mac80211.h>
24 #include <linux/moduleparam.h>
25 #include <linux/firmware.h>
26 #include <linux/workqueue.h>
28 #define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver"
29 #define MWL8K_NAME KBUILD_MODNAME
30 #define MWL8K_VERSION "0.12"
32 /* Module parameters */
33 static unsigned ap_mode_default;
34 module_param(ap_mode_default, bool, 0);
35 MODULE_PARM_DESC(ap_mode_default,
36 "Set to 1 to make ap mode the default instead of sta mode");
38 /* Register definitions */
39 #define MWL8K_HIU_GEN_PTR 0x00000c10
40 #define MWL8K_MODE_STA 0x0000005a
41 #define MWL8K_MODE_AP 0x000000a5
42 #define MWL8K_HIU_INT_CODE 0x00000c14
43 #define MWL8K_FWSTA_READY 0xf0f1f2f4
44 #define MWL8K_FWAP_READY 0xf1f2f4a5
45 #define MWL8K_INT_CODE_CMD_FINISHED 0x00000005
46 #define MWL8K_HIU_SCRATCH 0x00000c40
48 /* Host->device communications */
49 #define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18
50 #define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c
51 #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20
52 #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24
53 #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28
54 #define MWL8K_H2A_INT_DUMMY (1 << 20)
55 #define MWL8K_H2A_INT_RESET (1 << 15)
56 #define MWL8K_H2A_INT_DOORBELL (1 << 1)
57 #define MWL8K_H2A_INT_PPA_READY (1 << 0)
59 /* Device->host communications */
60 #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c
61 #define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30
62 #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34
63 #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38
64 #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c
65 #define MWL8K_A2H_INT_DUMMY (1 << 20)
66 #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11)
67 #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10)
68 #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7)
69 #define MWL8K_A2H_INT_RADIO_ON (1 << 6)
70 #define MWL8K_A2H_INT_RADIO_OFF (1 << 5)
71 #define MWL8K_A2H_INT_MAC_EVENT (1 << 3)
72 #define MWL8K_A2H_INT_OPC_DONE (1 << 2)
73 #define MWL8K_A2H_INT_RX_READY (1 << 1)
74 #define MWL8K_A2H_INT_TX_DONE (1 << 0)
76 #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \
77 MWL8K_A2H_INT_CHNL_SWITCHED | \
78 MWL8K_A2H_INT_QUEUE_EMPTY | \
79 MWL8K_A2H_INT_RADAR_DETECT | \
80 MWL8K_A2H_INT_RADIO_ON | \
81 MWL8K_A2H_INT_RADIO_OFF | \
82 MWL8K_A2H_INT_MAC_EVENT | \
83 MWL8K_A2H_INT_OPC_DONE | \
84 MWL8K_A2H_INT_RX_READY | \
85 MWL8K_A2H_INT_TX_DONE)
87 #define MWL8K_RX_QUEUES 1
88 #define MWL8K_TX_QUEUES 4
92 void (*rxd_init)(void *rxd, dma_addr_t next_dma_addr);
93 void (*rxd_refill)(void *rxd, dma_addr_t addr, int len);
94 int (*rxd_process)(void *rxd, struct ieee80211_rx_status *status,
95 __le16 *qos, s8 *noise);
98 struct mwl8k_device_info {
103 struct rxd_ops *ap_rxd_ops;
107 struct mwl8k_rx_queue {
110 /* hw receives here */
113 /* refill descs here */
120 DEFINE_DMA_UNMAP_ADDR(dma);
124 struct mwl8k_tx_queue {
125 /* hw transmits here */
128 /* sw appends here */
132 struct mwl8k_tx_desc *txd;
134 struct sk_buff **skb;
138 struct ieee80211_hw *hw;
139 struct pci_dev *pdev;
141 struct mwl8k_device_info *device_info;
147 const struct firmware *fw_helper;
148 const struct firmware *fw_ucode;
150 /* hardware/firmware parameters */
152 struct rxd_ops *rxd_ops;
153 struct ieee80211_supported_band band_24;
154 struct ieee80211_channel channels_24[14];
155 struct ieee80211_rate rates_24[14];
156 struct ieee80211_supported_band band_50;
157 struct ieee80211_channel channels_50[4];
158 struct ieee80211_rate rates_50[9];
159 u32 ap_macids_supported;
160 u32 sta_macids_supported;
162 /* firmware access */
163 struct mutex fw_mutex;
164 struct task_struct *fw_mutex_owner;
166 struct completion *hostcmd_wait;
168 /* lock held over TX and TX reap */
171 /* TX quiesce completion, protected by fw_mutex and tx_lock */
172 struct completion *tx_wait;
174 /* List of interfaces. */
176 struct list_head vif_list;
178 /* power management status cookie from firmware */
180 dma_addr_t cookie_dma;
187 * Running count of TX packets in flight, to avoid
188 * iterating over the transmit rings each time.
192 struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES];
193 struct mwl8k_tx_queue txq[MWL8K_TX_QUEUES];
196 bool radio_short_preamble;
197 bool sniffer_enabled;
200 /* XXX need to convert this to handle multiple interfaces */
202 u8 capture_bssid[ETH_ALEN];
203 struct sk_buff *beacon_skb;
206 * This FJ worker has to be global as it is scheduled from the
207 * RX handler. At this point we don't know which interface it
208 * belongs to until the list of bssids waiting to complete join
211 struct work_struct finalize_join_worker;
213 /* Tasklet to perform TX reclaim. */
214 struct tasklet_struct poll_tx_task;
216 /* Tasklet to perform RX. */
217 struct tasklet_struct poll_rx_task;
219 /* Most recently reported noise in dBm */
223 * preserve the queue configurations so they can be restored if/when
224 * the firmware image is swapped.
226 struct ieee80211_tx_queue_params wmm_params[MWL8K_TX_QUEUES];
228 /* async firmware loading state */
232 struct completion firmware_loading_complete;
235 #define MAX_WEP_KEY_LEN 13
236 #define NUM_WEP_KEYS 4
238 /* Per interface specific private data */
240 struct list_head list;
241 struct ieee80211_vif *vif;
243 /* Firmware macid for this vif. */
246 /* Non AMPDU sequence number assigned by driver. */
252 u8 key[sizeof(struct ieee80211_key_conf) + MAX_WEP_KEY_LEN];
253 } wep_key_conf[NUM_WEP_KEYS];
258 /* A flag to indicate is HW crypto is enabled for this bssid */
259 bool is_hw_crypto_enabled;
261 #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv))
262 #define IEEE80211_KEY_CONF(_u8) ((struct ieee80211_key_conf *)(_u8))
265 /* Index into station database. Returned by UPDATE_STADB. */
268 #define MWL8K_STA(_sta) ((struct mwl8k_sta *)&((_sta)->drv_priv))
270 static const struct ieee80211_channel mwl8k_channels_24[] = {
271 { .center_freq = 2412, .hw_value = 1, },
272 { .center_freq = 2417, .hw_value = 2, },
273 { .center_freq = 2422, .hw_value = 3, },
274 { .center_freq = 2427, .hw_value = 4, },
275 { .center_freq = 2432, .hw_value = 5, },
276 { .center_freq = 2437, .hw_value = 6, },
277 { .center_freq = 2442, .hw_value = 7, },
278 { .center_freq = 2447, .hw_value = 8, },
279 { .center_freq = 2452, .hw_value = 9, },
280 { .center_freq = 2457, .hw_value = 10, },
281 { .center_freq = 2462, .hw_value = 11, },
282 { .center_freq = 2467, .hw_value = 12, },
283 { .center_freq = 2472, .hw_value = 13, },
284 { .center_freq = 2484, .hw_value = 14, },
287 static const struct ieee80211_rate mwl8k_rates_24[] = {
288 { .bitrate = 10, .hw_value = 2, },
289 { .bitrate = 20, .hw_value = 4, },
290 { .bitrate = 55, .hw_value = 11, },
291 { .bitrate = 110, .hw_value = 22, },
292 { .bitrate = 220, .hw_value = 44, },
293 { .bitrate = 60, .hw_value = 12, },
294 { .bitrate = 90, .hw_value = 18, },
295 { .bitrate = 120, .hw_value = 24, },
296 { .bitrate = 180, .hw_value = 36, },
297 { .bitrate = 240, .hw_value = 48, },
298 { .bitrate = 360, .hw_value = 72, },
299 { .bitrate = 480, .hw_value = 96, },
300 { .bitrate = 540, .hw_value = 108, },
301 { .bitrate = 720, .hw_value = 144, },
304 static const struct ieee80211_channel mwl8k_channels_50[] = {
305 { .center_freq = 5180, .hw_value = 36, },
306 { .center_freq = 5200, .hw_value = 40, },
307 { .center_freq = 5220, .hw_value = 44, },
308 { .center_freq = 5240, .hw_value = 48, },
311 static const struct ieee80211_rate mwl8k_rates_50[] = {
312 { .bitrate = 60, .hw_value = 12, },
313 { .bitrate = 90, .hw_value = 18, },
314 { .bitrate = 120, .hw_value = 24, },
315 { .bitrate = 180, .hw_value = 36, },
316 { .bitrate = 240, .hw_value = 48, },
317 { .bitrate = 360, .hw_value = 72, },
318 { .bitrate = 480, .hw_value = 96, },
319 { .bitrate = 540, .hw_value = 108, },
320 { .bitrate = 720, .hw_value = 144, },
323 /* Set or get info from Firmware */
324 #define MWL8K_CMD_GET 0x0000
325 #define MWL8K_CMD_SET 0x0001
326 #define MWL8K_CMD_SET_LIST 0x0002
328 /* Firmware command codes */
329 #define MWL8K_CMD_CODE_DNLD 0x0001
330 #define MWL8K_CMD_GET_HW_SPEC 0x0003
331 #define MWL8K_CMD_SET_HW_SPEC 0x0004
332 #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010
333 #define MWL8K_CMD_GET_STAT 0x0014
334 #define MWL8K_CMD_RADIO_CONTROL 0x001c
335 #define MWL8K_CMD_RF_TX_POWER 0x001e
336 #define MWL8K_CMD_TX_POWER 0x001f
337 #define MWL8K_CMD_RF_ANTENNA 0x0020
338 #define MWL8K_CMD_SET_BEACON 0x0100 /* per-vif */
339 #define MWL8K_CMD_SET_PRE_SCAN 0x0107
340 #define MWL8K_CMD_SET_POST_SCAN 0x0108
341 #define MWL8K_CMD_SET_RF_CHANNEL 0x010a
342 #define MWL8K_CMD_SET_AID 0x010d
343 #define MWL8K_CMD_SET_RATE 0x0110
344 #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111
345 #define MWL8K_CMD_RTS_THRESHOLD 0x0113
346 #define MWL8K_CMD_SET_SLOT 0x0114
347 #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115
348 #define MWL8K_CMD_SET_WMM_MODE 0x0123
349 #define MWL8K_CMD_MIMO_CONFIG 0x0125
350 #define MWL8K_CMD_USE_FIXED_RATE 0x0126
351 #define MWL8K_CMD_ENABLE_SNIFFER 0x0150
352 #define MWL8K_CMD_SET_MAC_ADDR 0x0202 /* per-vif */
353 #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203
354 #define MWL8K_CMD_BSS_START 0x1100 /* per-vif */
355 #define MWL8K_CMD_SET_NEW_STN 0x1111 /* per-vif */
356 #define MWL8K_CMD_UPDATE_ENCRYPTION 0x1122 /* per-vif */
357 #define MWL8K_CMD_UPDATE_STADB 0x1123
359 static const char *mwl8k_cmd_name(__le16 cmd, char *buf, int bufsize)
361 u16 command = le16_to_cpu(cmd);
363 #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\
364 snprintf(buf, bufsize, "%s", #x);\
367 switch (command & ~0x8000) {
368 MWL8K_CMDNAME(CODE_DNLD);
369 MWL8K_CMDNAME(GET_HW_SPEC);
370 MWL8K_CMDNAME(SET_HW_SPEC);
371 MWL8K_CMDNAME(MAC_MULTICAST_ADR);
372 MWL8K_CMDNAME(GET_STAT);
373 MWL8K_CMDNAME(RADIO_CONTROL);
374 MWL8K_CMDNAME(RF_TX_POWER);
375 MWL8K_CMDNAME(TX_POWER);
376 MWL8K_CMDNAME(RF_ANTENNA);
377 MWL8K_CMDNAME(SET_BEACON);
378 MWL8K_CMDNAME(SET_PRE_SCAN);
379 MWL8K_CMDNAME(SET_POST_SCAN);
380 MWL8K_CMDNAME(SET_RF_CHANNEL);
381 MWL8K_CMDNAME(SET_AID);
382 MWL8K_CMDNAME(SET_RATE);
383 MWL8K_CMDNAME(SET_FINALIZE_JOIN);
384 MWL8K_CMDNAME(RTS_THRESHOLD);
385 MWL8K_CMDNAME(SET_SLOT);
386 MWL8K_CMDNAME(SET_EDCA_PARAMS);
387 MWL8K_CMDNAME(SET_WMM_MODE);
388 MWL8K_CMDNAME(MIMO_CONFIG);
389 MWL8K_CMDNAME(USE_FIXED_RATE);
390 MWL8K_CMDNAME(ENABLE_SNIFFER);
391 MWL8K_CMDNAME(SET_MAC_ADDR);
392 MWL8K_CMDNAME(SET_RATEADAPT_MODE);
393 MWL8K_CMDNAME(BSS_START);
394 MWL8K_CMDNAME(SET_NEW_STN);
395 MWL8K_CMDNAME(UPDATE_ENCRYPTION);
396 MWL8K_CMDNAME(UPDATE_STADB);
398 snprintf(buf, bufsize, "0x%x", cmd);
405 /* Hardware and firmware reset */
406 static void mwl8k_hw_reset(struct mwl8k_priv *priv)
408 iowrite32(MWL8K_H2A_INT_RESET,
409 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
410 iowrite32(MWL8K_H2A_INT_RESET,
411 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
415 /* Release fw image */
416 static void mwl8k_release_fw(const struct firmware **fw)
420 release_firmware(*fw);
424 static void mwl8k_release_firmware(struct mwl8k_priv *priv)
426 mwl8k_release_fw(&priv->fw_ucode);
427 mwl8k_release_fw(&priv->fw_helper);
430 /* states for asynchronous f/w loading */
431 static void mwl8k_fw_state_machine(const struct firmware *fw, void *context);
434 FW_STATE_LOADING_PREF,
435 FW_STATE_LOADING_ALT,
439 /* Request fw image */
440 static int mwl8k_request_fw(struct mwl8k_priv *priv,
441 const char *fname, const struct firmware **fw,
444 /* release current image */
446 mwl8k_release_fw(fw);
449 return request_firmware_nowait(THIS_MODULE, 1, fname,
450 &priv->pdev->dev, GFP_KERNEL,
451 priv, mwl8k_fw_state_machine);
453 return request_firmware(fw, fname, &priv->pdev->dev);
456 static int mwl8k_request_firmware(struct mwl8k_priv *priv, char *fw_image,
459 struct mwl8k_device_info *di = priv->device_info;
462 if (di->helper_image != NULL) {
464 rc = mwl8k_request_fw(priv, di->helper_image,
465 &priv->fw_helper, true);
467 rc = mwl8k_request_fw(priv, di->helper_image,
468 &priv->fw_helper, false);
470 printk(KERN_ERR "%s: Error requesting helper fw %s\n",
471 pci_name(priv->pdev), di->helper_image);
479 * if we get here, no helper image is needed. Skip the
480 * FW_STATE_INIT state.
482 priv->fw_state = FW_STATE_LOADING_PREF;
483 rc = mwl8k_request_fw(priv, fw_image,
487 rc = mwl8k_request_fw(priv, fw_image,
488 &priv->fw_ucode, false);
490 printk(KERN_ERR "%s: Error requesting firmware file %s\n",
491 pci_name(priv->pdev), fw_image);
492 mwl8k_release_fw(&priv->fw_helper);
499 struct mwl8k_cmd_pkt {
512 mwl8k_send_fw_load_cmd(struct mwl8k_priv *priv, void *data, int length)
514 void __iomem *regs = priv->regs;
518 dma_addr = pci_map_single(priv->pdev, data, length, PCI_DMA_TODEVICE);
519 if (pci_dma_mapping_error(priv->pdev, dma_addr))
522 iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
523 iowrite32(0, regs + MWL8K_HIU_INT_CODE);
524 iowrite32(MWL8K_H2A_INT_DOORBELL,
525 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
526 iowrite32(MWL8K_H2A_INT_DUMMY,
527 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
533 int_code = ioread32(regs + MWL8K_HIU_INT_CODE);
534 if (int_code == MWL8K_INT_CODE_CMD_FINISHED) {
535 iowrite32(0, regs + MWL8K_HIU_INT_CODE);
543 pci_unmap_single(priv->pdev, dma_addr, length, PCI_DMA_TODEVICE);
545 return loops ? 0 : -ETIMEDOUT;
548 static int mwl8k_load_fw_image(struct mwl8k_priv *priv,
549 const u8 *data, size_t length)
551 struct mwl8k_cmd_pkt *cmd;
555 cmd = kmalloc(sizeof(*cmd) + 256, GFP_KERNEL);
559 cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD);
566 int block_size = length > 256 ? 256 : length;
568 memcpy(cmd->payload, data + done, block_size);
569 cmd->length = cpu_to_le16(block_size);
571 rc = mwl8k_send_fw_load_cmd(priv, cmd,
572 sizeof(*cmd) + block_size);
577 length -= block_size;
582 rc = mwl8k_send_fw_load_cmd(priv, cmd, sizeof(*cmd));
590 static int mwl8k_feed_fw_image(struct mwl8k_priv *priv,
591 const u8 *data, size_t length)
593 unsigned char *buffer;
594 int may_continue, rc = 0;
595 u32 done, prev_block_size;
597 buffer = kmalloc(1024, GFP_KERNEL);
604 while (may_continue > 0) {
607 block_size = ioread32(priv->regs + MWL8K_HIU_SCRATCH);
608 if (block_size & 1) {
612 done += prev_block_size;
613 length -= prev_block_size;
616 if (block_size > 1024 || block_size > length) {
626 if (block_size == 0) {
633 prev_block_size = block_size;
634 memcpy(buffer, data + done, block_size);
636 rc = mwl8k_send_fw_load_cmd(priv, buffer, block_size);
641 if (!rc && length != 0)
649 static int mwl8k_load_firmware(struct ieee80211_hw *hw)
651 struct mwl8k_priv *priv = hw->priv;
652 const struct firmware *fw = priv->fw_ucode;
656 if (!memcmp(fw->data, "\x01\x00\x00\x00", 4)) {
657 const struct firmware *helper = priv->fw_helper;
659 if (helper == NULL) {
660 printk(KERN_ERR "%s: helper image needed but none "
661 "given\n", pci_name(priv->pdev));
665 rc = mwl8k_load_fw_image(priv, helper->data, helper->size);
667 printk(KERN_ERR "%s: unable to load firmware "
668 "helper image\n", pci_name(priv->pdev));
673 rc = mwl8k_feed_fw_image(priv, fw->data, fw->size);
675 rc = mwl8k_load_fw_image(priv, fw->data, fw->size);
679 printk(KERN_ERR "%s: unable to load firmware image\n",
680 pci_name(priv->pdev));
684 iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR);
690 ready_code = ioread32(priv->regs + MWL8K_HIU_INT_CODE);
691 if (ready_code == MWL8K_FWAP_READY) {
694 } else if (ready_code == MWL8K_FWSTA_READY) {
703 return loops ? 0 : -ETIMEDOUT;
707 /* DMA header used by firmware and hardware. */
708 struct mwl8k_dma_data {
710 struct ieee80211_hdr wh;
714 /* Routines to add/remove DMA header from skb. */
715 static inline void mwl8k_remove_dma_header(struct sk_buff *skb, __le16 qos)
717 struct mwl8k_dma_data *tr;
720 tr = (struct mwl8k_dma_data *)skb->data;
721 hdrlen = ieee80211_hdrlen(tr->wh.frame_control);
723 if (hdrlen != sizeof(tr->wh)) {
724 if (ieee80211_is_data_qos(tr->wh.frame_control)) {
725 memmove(tr->data - hdrlen, &tr->wh, hdrlen - 2);
726 *((__le16 *)(tr->data - 2)) = qos;
728 memmove(tr->data - hdrlen, &tr->wh, hdrlen);
732 if (hdrlen != sizeof(*tr))
733 skb_pull(skb, sizeof(*tr) - hdrlen);
737 mwl8k_add_dma_header(struct sk_buff *skb, int tail_pad)
739 struct ieee80211_hdr *wh;
742 struct mwl8k_dma_data *tr;
745 * Add a firmware DMA header; the firmware requires that we
746 * present a 2-byte payload length followed by a 4-address
747 * header (without QoS field), followed (optionally) by any
748 * WEP/ExtIV header (but only filled in for CCMP).
750 wh = (struct ieee80211_hdr *)skb->data;
752 hdrlen = ieee80211_hdrlen(wh->frame_control);
753 reqd_hdrlen = sizeof(*tr);
755 if (hdrlen != reqd_hdrlen)
756 skb_push(skb, reqd_hdrlen - hdrlen);
758 if (ieee80211_is_data_qos(wh->frame_control))
759 hdrlen -= IEEE80211_QOS_CTL_LEN;
761 tr = (struct mwl8k_dma_data *)skb->data;
763 memmove(&tr->wh, wh, hdrlen);
764 if (hdrlen != sizeof(tr->wh))
765 memset(((void *)&tr->wh) + hdrlen, 0, sizeof(tr->wh) - hdrlen);
768 * Firmware length is the length of the fully formed "802.11
769 * payload". That is, everything except for the 802.11 header.
770 * This includes all crypto material including the MIC.
772 tr->fwlen = cpu_to_le16(skb->len - sizeof(*tr) + tail_pad);
775 static void mwl8k_encapsulate_tx_frame(struct sk_buff *skb)
777 struct ieee80211_hdr *wh;
778 struct ieee80211_tx_info *tx_info;
779 struct ieee80211_key_conf *key_conf;
782 wh = (struct ieee80211_hdr *)skb->data;
784 tx_info = IEEE80211_SKB_CB(skb);
787 if (ieee80211_is_data(wh->frame_control))
788 key_conf = tx_info->control.hw_key;
791 * Make sure the packet header is in the DMA header format (4-address
792 * without QoS), the necessary crypto padding between the header and the
793 * payload has already been provided by mac80211, but it doesn't add tail
794 * padding when HW crypto is enabled.
796 * We have the following trailer padding requirements:
797 * - WEP: 4 trailer bytes (ICV)
798 * - TKIP: 12 trailer bytes (8 MIC + 4 ICV)
799 * - CCMP: 8 trailer bytes (MIC)
802 if (key_conf != NULL) {
803 switch (key_conf->cipher) {
804 case WLAN_CIPHER_SUITE_WEP40:
805 case WLAN_CIPHER_SUITE_WEP104:
808 case WLAN_CIPHER_SUITE_TKIP:
811 case WLAN_CIPHER_SUITE_CCMP:
816 mwl8k_add_dma_header(skb, data_pad);
820 * Packet reception for 88w8366 AP firmware.
822 struct mwl8k_rxd_8366_ap {
826 __le32 pkt_phys_addr;
827 __le32 next_rxd_phys_addr;
831 __le32 hw_noise_floor_info;
840 #define MWL8K_8366_AP_RATE_INFO_MCS_FORMAT 0x80
841 #define MWL8K_8366_AP_RATE_INFO_40MHZ 0x40
842 #define MWL8K_8366_AP_RATE_INFO_RATEID(x) ((x) & 0x3f)
844 #define MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST 0x80
846 /* 8366 AP rx_status bits */
847 #define MWL8K_8366_AP_RXSTAT_DECRYPT_ERR_MASK 0x80
848 #define MWL8K_8366_AP_RXSTAT_GENERAL_DECRYPT_ERR 0xFF
849 #define MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR 0x02
850 #define MWL8K_8366_AP_RXSTAT_WEP_DECRYPT_ICV_ERR 0x04
851 #define MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_ICV_ERR 0x08
853 static void mwl8k_rxd_8366_ap_init(void *_rxd, dma_addr_t next_dma_addr)
855 struct mwl8k_rxd_8366_ap *rxd = _rxd;
857 rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr);
858 rxd->rx_ctrl = MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST;
861 static void mwl8k_rxd_8366_ap_refill(void *_rxd, dma_addr_t addr, int len)
863 struct mwl8k_rxd_8366_ap *rxd = _rxd;
865 rxd->pkt_len = cpu_to_le16(len);
866 rxd->pkt_phys_addr = cpu_to_le32(addr);
872 mwl8k_rxd_8366_ap_process(void *_rxd, struct ieee80211_rx_status *status,
873 __le16 *qos, s8 *noise)
875 struct mwl8k_rxd_8366_ap *rxd = _rxd;
877 if (!(rxd->rx_ctrl & MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST))
881 memset(status, 0, sizeof(*status));
883 status->signal = -rxd->rssi;
884 *noise = -rxd->noise_floor;
886 if (rxd->rate & MWL8K_8366_AP_RATE_INFO_MCS_FORMAT) {
887 status->flag |= RX_FLAG_HT;
888 if (rxd->rate & MWL8K_8366_AP_RATE_INFO_40MHZ)
889 status->flag |= RX_FLAG_40MHZ;
890 status->rate_idx = MWL8K_8366_AP_RATE_INFO_RATEID(rxd->rate);
894 for (i = 0; i < ARRAY_SIZE(mwl8k_rates_24); i++) {
895 if (mwl8k_rates_24[i].hw_value == rxd->rate) {
896 status->rate_idx = i;
902 if (rxd->channel > 14) {
903 status->band = IEEE80211_BAND_5GHZ;
904 if (!(status->flag & RX_FLAG_HT))
905 status->rate_idx -= 5;
907 status->band = IEEE80211_BAND_2GHZ;
909 status->freq = ieee80211_channel_to_frequency(rxd->channel,
912 *qos = rxd->qos_control;
914 if ((rxd->rx_status != MWL8K_8366_AP_RXSTAT_GENERAL_DECRYPT_ERR) &&
915 (rxd->rx_status & MWL8K_8366_AP_RXSTAT_DECRYPT_ERR_MASK) &&
916 (rxd->rx_status & MWL8K_8366_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR))
917 status->flag |= RX_FLAG_MMIC_ERROR;
919 return le16_to_cpu(rxd->pkt_len);
922 static struct rxd_ops rxd_8366_ap_ops = {
923 .rxd_size = sizeof(struct mwl8k_rxd_8366_ap),
924 .rxd_init = mwl8k_rxd_8366_ap_init,
925 .rxd_refill = mwl8k_rxd_8366_ap_refill,
926 .rxd_process = mwl8k_rxd_8366_ap_process,
930 * Packet reception for STA firmware.
932 struct mwl8k_rxd_sta {
936 __le32 pkt_phys_addr;
937 __le32 next_rxd_phys_addr;
949 #define MWL8K_STA_RATE_INFO_SHORTPRE 0x8000
950 #define MWL8K_STA_RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3)
951 #define MWL8K_STA_RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f)
952 #define MWL8K_STA_RATE_INFO_40MHZ 0x0004
953 #define MWL8K_STA_RATE_INFO_SHORTGI 0x0002
954 #define MWL8K_STA_RATE_INFO_MCS_FORMAT 0x0001
956 #define MWL8K_STA_RX_CTRL_OWNED_BY_HOST 0x02
957 #define MWL8K_STA_RX_CTRL_DECRYPT_ERROR 0x04
959 #define MWL8K_STA_RX_CTRL_DEC_ERR_TYPE 0x08
960 /* Key is uploaded only in failure case */
961 #define MWL8K_STA_RX_CTRL_KEY_INDEX 0x30
963 static void mwl8k_rxd_sta_init(void *_rxd, dma_addr_t next_dma_addr)
965 struct mwl8k_rxd_sta *rxd = _rxd;
967 rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr);
968 rxd->rx_ctrl = MWL8K_STA_RX_CTRL_OWNED_BY_HOST;
971 static void mwl8k_rxd_sta_refill(void *_rxd, dma_addr_t addr, int len)
973 struct mwl8k_rxd_sta *rxd = _rxd;
975 rxd->pkt_len = cpu_to_le16(len);
976 rxd->pkt_phys_addr = cpu_to_le32(addr);
982 mwl8k_rxd_sta_process(void *_rxd, struct ieee80211_rx_status *status,
983 __le16 *qos, s8 *noise)
985 struct mwl8k_rxd_sta *rxd = _rxd;
988 if (!(rxd->rx_ctrl & MWL8K_STA_RX_CTRL_OWNED_BY_HOST))
992 rate_info = le16_to_cpu(rxd->rate_info);
994 memset(status, 0, sizeof(*status));
996 status->signal = -rxd->rssi;
997 *noise = -rxd->noise_level;
998 status->antenna = MWL8K_STA_RATE_INFO_ANTSELECT(rate_info);
999 status->rate_idx = MWL8K_STA_RATE_INFO_RATEID(rate_info);
1001 if (rate_info & MWL8K_STA_RATE_INFO_SHORTPRE)
1002 status->flag |= RX_FLAG_SHORTPRE;
1003 if (rate_info & MWL8K_STA_RATE_INFO_40MHZ)
1004 status->flag |= RX_FLAG_40MHZ;
1005 if (rate_info & MWL8K_STA_RATE_INFO_SHORTGI)
1006 status->flag |= RX_FLAG_SHORT_GI;
1007 if (rate_info & MWL8K_STA_RATE_INFO_MCS_FORMAT)
1008 status->flag |= RX_FLAG_HT;
1010 if (rxd->channel > 14) {
1011 status->band = IEEE80211_BAND_5GHZ;
1012 if (!(status->flag & RX_FLAG_HT))
1013 status->rate_idx -= 5;
1015 status->band = IEEE80211_BAND_2GHZ;
1017 status->freq = ieee80211_channel_to_frequency(rxd->channel,
1020 *qos = rxd->qos_control;
1021 if ((rxd->rx_ctrl & MWL8K_STA_RX_CTRL_DECRYPT_ERROR) &&
1022 (rxd->rx_ctrl & MWL8K_STA_RX_CTRL_DEC_ERR_TYPE))
1023 status->flag |= RX_FLAG_MMIC_ERROR;
1025 return le16_to_cpu(rxd->pkt_len);
1028 static struct rxd_ops rxd_sta_ops = {
1029 .rxd_size = sizeof(struct mwl8k_rxd_sta),
1030 .rxd_init = mwl8k_rxd_sta_init,
1031 .rxd_refill = mwl8k_rxd_sta_refill,
1032 .rxd_process = mwl8k_rxd_sta_process,
1036 #define MWL8K_RX_DESCS 256
1037 #define MWL8K_RX_MAXSZ 3800
1039 static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index)
1041 struct mwl8k_priv *priv = hw->priv;
1042 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1050 size = MWL8K_RX_DESCS * priv->rxd_ops->rxd_size;
1052 rxq->rxd = pci_alloc_consistent(priv->pdev, size, &rxq->rxd_dma);
1053 if (rxq->rxd == NULL) {
1054 wiphy_err(hw->wiphy, "failed to alloc RX descriptors\n");
1057 memset(rxq->rxd, 0, size);
1059 rxq->buf = kcalloc(MWL8K_RX_DESCS, sizeof(*rxq->buf), GFP_KERNEL);
1060 if (rxq->buf == NULL) {
1061 wiphy_err(hw->wiphy, "failed to alloc RX skbuff list\n");
1062 pci_free_consistent(priv->pdev, size, rxq->rxd, rxq->rxd_dma);
1066 for (i = 0; i < MWL8K_RX_DESCS; i++) {
1070 dma_addr_t next_dma_addr;
1072 desc_size = priv->rxd_ops->rxd_size;
1073 rxd = rxq->rxd + (i * priv->rxd_ops->rxd_size);
1076 if (nexti == MWL8K_RX_DESCS)
1078 next_dma_addr = rxq->rxd_dma + (nexti * desc_size);
1080 priv->rxd_ops->rxd_init(rxd, next_dma_addr);
1086 static int rxq_refill(struct ieee80211_hw *hw, int index, int limit)
1088 struct mwl8k_priv *priv = hw->priv;
1089 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1093 while (rxq->rxd_count < MWL8K_RX_DESCS && limit--) {
1094 struct sk_buff *skb;
1099 skb = dev_alloc_skb(MWL8K_RX_MAXSZ);
1103 addr = pci_map_single(priv->pdev, skb->data,
1104 MWL8K_RX_MAXSZ, DMA_FROM_DEVICE);
1108 if (rxq->tail == MWL8K_RX_DESCS)
1110 rxq->buf[rx].skb = skb;
1111 dma_unmap_addr_set(&rxq->buf[rx], dma, addr);
1113 rxd = rxq->rxd + (rx * priv->rxd_ops->rxd_size);
1114 priv->rxd_ops->rxd_refill(rxd, addr, MWL8K_RX_MAXSZ);
1122 /* Must be called only when the card's reception is completely halted */
1123 static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index)
1125 struct mwl8k_priv *priv = hw->priv;
1126 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1129 for (i = 0; i < MWL8K_RX_DESCS; i++) {
1130 if (rxq->buf[i].skb != NULL) {
1131 pci_unmap_single(priv->pdev,
1132 dma_unmap_addr(&rxq->buf[i], dma),
1133 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1134 dma_unmap_addr_set(&rxq->buf[i], dma, 0);
1136 kfree_skb(rxq->buf[i].skb);
1137 rxq->buf[i].skb = NULL;
1144 pci_free_consistent(priv->pdev,
1145 MWL8K_RX_DESCS * priv->rxd_ops->rxd_size,
1146 rxq->rxd, rxq->rxd_dma);
1152 * Scan a list of BSSIDs to process for finalize join.
1153 * Allows for extension to process multiple BSSIDs.
1156 mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh)
1158 return priv->capture_beacon &&
1159 ieee80211_is_beacon(wh->frame_control) &&
1160 !compare_ether_addr(wh->addr3, priv->capture_bssid);
1163 static inline void mwl8k_save_beacon(struct ieee80211_hw *hw,
1164 struct sk_buff *skb)
1166 struct mwl8k_priv *priv = hw->priv;
1168 priv->capture_beacon = false;
1169 memset(priv->capture_bssid, 0, ETH_ALEN);
1172 * Use GFP_ATOMIC as rxq_process is called from
1173 * the primary interrupt handler, memory allocation call
1176 priv->beacon_skb = skb_copy(skb, GFP_ATOMIC);
1177 if (priv->beacon_skb != NULL)
1178 ieee80211_queue_work(hw, &priv->finalize_join_worker);
1181 static inline struct mwl8k_vif *mwl8k_find_vif_bss(struct list_head *vif_list,
1184 struct mwl8k_vif *mwl8k_vif;
1186 list_for_each_entry(mwl8k_vif,
1188 if (memcmp(bssid, mwl8k_vif->bssid,
1196 static int rxq_process(struct ieee80211_hw *hw, int index, int limit)
1198 struct mwl8k_priv *priv = hw->priv;
1199 struct mwl8k_vif *mwl8k_vif = NULL;
1200 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1204 while (rxq->rxd_count && limit--) {
1205 struct sk_buff *skb;
1208 struct ieee80211_rx_status status;
1209 struct ieee80211_hdr *wh;
1212 skb = rxq->buf[rxq->head].skb;
1216 rxd = rxq->rxd + (rxq->head * priv->rxd_ops->rxd_size);
1218 pkt_len = priv->rxd_ops->rxd_process(rxd, &status, &qos,
1223 rxq->buf[rxq->head].skb = NULL;
1225 pci_unmap_single(priv->pdev,
1226 dma_unmap_addr(&rxq->buf[rxq->head], dma),
1227 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1228 dma_unmap_addr_set(&rxq->buf[rxq->head], dma, 0);
1231 if (rxq->head == MWL8K_RX_DESCS)
1236 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1239 * Check for a pending join operation. Save a
1240 * copy of the beacon and schedule a tasklet to
1241 * send a FINALIZE_JOIN command to the firmware.
1243 if (mwl8k_capture_bssid(priv, (void *)skb->data))
1244 mwl8k_save_beacon(hw, skb);
1246 if (ieee80211_has_protected(wh->frame_control)) {
1248 /* Check if hw crypto has been enabled for
1249 * this bss. If yes, set the status flags
1252 mwl8k_vif = mwl8k_find_vif_bss(&priv->vif_list,
1255 if (mwl8k_vif != NULL &&
1256 mwl8k_vif->is_hw_crypto_enabled == true) {
1258 * When MMIC ERROR is encountered
1259 * by the firmware, payload is
1260 * dropped and only 32 bytes of
1261 * mwl8k Firmware header is sent
1264 * We need to add four bytes of
1265 * key information. In it
1266 * MAC80211 expects keyidx set to
1267 * 0 for triggering Counter
1268 * Measure of MMIC failure.
1270 if (status.flag & RX_FLAG_MMIC_ERROR) {
1271 struct mwl8k_dma_data *tr;
1272 tr = (struct mwl8k_dma_data *)skb->data;
1273 memset((void *)&(tr->data), 0, 4);
1277 if (!ieee80211_is_auth(wh->frame_control))
1278 status.flag |= RX_FLAG_IV_STRIPPED |
1280 RX_FLAG_MMIC_STRIPPED;
1284 skb_put(skb, pkt_len);
1285 mwl8k_remove_dma_header(skb, qos);
1286 memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
1287 ieee80211_rx_irqsafe(hw, skb);
1297 * Packet transmission.
1300 #define MWL8K_TXD_STATUS_OK 0x00000001
1301 #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002
1302 #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004
1303 #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008
1304 #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000
1306 #define MWL8K_QOS_QLEN_UNSPEC 0xff00
1307 #define MWL8K_QOS_ACK_POLICY_MASK 0x0060
1308 #define MWL8K_QOS_ACK_POLICY_NORMAL 0x0000
1309 #define MWL8K_QOS_ACK_POLICY_BLOCKACK 0x0060
1310 #define MWL8K_QOS_EOSP 0x0010
1312 struct mwl8k_tx_desc {
1317 __le32 pkt_phys_addr;
1319 __u8 dest_MAC_addr[ETH_ALEN];
1320 __le32 next_txd_phys_addr;
1327 #define MWL8K_TX_DESCS 128
1329 static int mwl8k_txq_init(struct ieee80211_hw *hw, int index)
1331 struct mwl8k_priv *priv = hw->priv;
1332 struct mwl8k_tx_queue *txq = priv->txq + index;
1340 size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc);
1342 txq->txd = pci_alloc_consistent(priv->pdev, size, &txq->txd_dma);
1343 if (txq->txd == NULL) {
1344 wiphy_err(hw->wiphy, "failed to alloc TX descriptors\n");
1347 memset(txq->txd, 0, size);
1349 txq->skb = kcalloc(MWL8K_TX_DESCS, sizeof(*txq->skb), GFP_KERNEL);
1350 if (txq->skb == NULL) {
1351 wiphy_err(hw->wiphy, "failed to alloc TX skbuff list\n");
1352 pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma);
1356 for (i = 0; i < MWL8K_TX_DESCS; i++) {
1357 struct mwl8k_tx_desc *tx_desc;
1360 tx_desc = txq->txd + i;
1361 nexti = (i + 1) % MWL8K_TX_DESCS;
1363 tx_desc->status = 0;
1364 tx_desc->next_txd_phys_addr =
1365 cpu_to_le32(txq->txd_dma + nexti * sizeof(*tx_desc));
1371 static inline void mwl8k_tx_start(struct mwl8k_priv *priv)
1373 iowrite32(MWL8K_H2A_INT_PPA_READY,
1374 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1375 iowrite32(MWL8K_H2A_INT_DUMMY,
1376 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1377 ioread32(priv->regs + MWL8K_HIU_INT_CODE);
1380 static void mwl8k_dump_tx_rings(struct ieee80211_hw *hw)
1382 struct mwl8k_priv *priv = hw->priv;
1385 for (i = 0; i < MWL8K_TX_QUEUES; i++) {
1386 struct mwl8k_tx_queue *txq = priv->txq + i;
1392 for (desc = 0; desc < MWL8K_TX_DESCS; desc++) {
1393 struct mwl8k_tx_desc *tx_desc = txq->txd + desc;
1396 status = le32_to_cpu(tx_desc->status);
1397 if (status & MWL8K_TXD_STATUS_FW_OWNED)
1402 if (tx_desc->pkt_len == 0)
1406 wiphy_err(hw->wiphy,
1407 "txq[%d] len=%d head=%d tail=%d "
1408 "fw_owned=%d drv_owned=%d unused=%d\n",
1410 txq->len, txq->head, txq->tail,
1411 fw_owned, drv_owned, unused);
1416 * Must be called with priv->fw_mutex held and tx queues stopped.
1418 #define MWL8K_TX_WAIT_TIMEOUT_MS 5000
1420 static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw)
1422 struct mwl8k_priv *priv = hw->priv;
1423 DECLARE_COMPLETION_ONSTACK(tx_wait);
1430 * The TX queues are stopped at this point, so this test
1431 * doesn't need to take ->tx_lock.
1433 if (!priv->pending_tx_pkts)
1439 spin_lock_bh(&priv->tx_lock);
1440 priv->tx_wait = &tx_wait;
1443 unsigned long timeout;
1445 oldcount = priv->pending_tx_pkts;
1447 spin_unlock_bh(&priv->tx_lock);
1448 timeout = wait_for_completion_timeout(&tx_wait,
1449 msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS));
1450 spin_lock_bh(&priv->tx_lock);
1453 WARN_ON(priv->pending_tx_pkts);
1455 wiphy_notice(hw->wiphy, "tx rings drained\n");
1460 if (priv->pending_tx_pkts < oldcount) {
1461 wiphy_notice(hw->wiphy,
1462 "waiting for tx rings to drain (%d -> %d pkts)\n",
1463 oldcount, priv->pending_tx_pkts);
1468 priv->tx_wait = NULL;
1470 wiphy_err(hw->wiphy, "tx rings stuck for %d ms\n",
1471 MWL8K_TX_WAIT_TIMEOUT_MS);
1472 mwl8k_dump_tx_rings(hw);
1476 spin_unlock_bh(&priv->tx_lock);
1481 #define MWL8K_TXD_SUCCESS(status) \
1482 ((status) & (MWL8K_TXD_STATUS_OK | \
1483 MWL8K_TXD_STATUS_OK_RETRY | \
1484 MWL8K_TXD_STATUS_OK_MORE_RETRY))
1487 mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force)
1489 struct mwl8k_priv *priv = hw->priv;
1490 struct mwl8k_tx_queue *txq = priv->txq + index;
1494 while (txq->len > 0 && limit--) {
1496 struct mwl8k_tx_desc *tx_desc;
1499 struct sk_buff *skb;
1500 struct ieee80211_tx_info *info;
1504 tx_desc = txq->txd + tx;
1506 status = le32_to_cpu(tx_desc->status);
1508 if (status & MWL8K_TXD_STATUS_FW_OWNED) {
1512 ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED);
1515 txq->head = (tx + 1) % MWL8K_TX_DESCS;
1516 BUG_ON(txq->len == 0);
1518 priv->pending_tx_pkts--;
1520 addr = le32_to_cpu(tx_desc->pkt_phys_addr);
1521 size = le16_to_cpu(tx_desc->pkt_len);
1523 txq->skb[tx] = NULL;
1525 BUG_ON(skb == NULL);
1526 pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE);
1528 mwl8k_remove_dma_header(skb, tx_desc->qos_control);
1530 /* Mark descriptor as unused */
1531 tx_desc->pkt_phys_addr = 0;
1532 tx_desc->pkt_len = 0;
1534 info = IEEE80211_SKB_CB(skb);
1535 ieee80211_tx_info_clear_status(info);
1537 /* Rate control is happening in the firmware.
1538 * Ensure no tx rate is being reported.
1540 info->status.rates[0].idx = -1;
1541 info->status.rates[0].count = 1;
1543 if (MWL8K_TXD_SUCCESS(status))
1544 info->flags |= IEEE80211_TX_STAT_ACK;
1546 ieee80211_tx_status_irqsafe(hw, skb);
1551 if (processed && priv->radio_on && !mutex_is_locked(&priv->fw_mutex))
1552 ieee80211_wake_queue(hw, index);
1557 /* must be called only when the card's transmit is completely halted */
1558 static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index)
1560 struct mwl8k_priv *priv = hw->priv;
1561 struct mwl8k_tx_queue *txq = priv->txq + index;
1563 mwl8k_txq_reclaim(hw, index, INT_MAX, 1);
1568 pci_free_consistent(priv->pdev,
1569 MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc),
1570 txq->txd, txq->txd_dma);
1575 mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb)
1577 struct mwl8k_priv *priv = hw->priv;
1578 struct ieee80211_tx_info *tx_info;
1579 struct mwl8k_vif *mwl8k_vif;
1580 struct ieee80211_hdr *wh;
1581 struct mwl8k_tx_queue *txq;
1582 struct mwl8k_tx_desc *tx;
1588 wh = (struct ieee80211_hdr *)skb->data;
1589 if (ieee80211_is_data_qos(wh->frame_control))
1590 qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh)));
1595 mwl8k_encapsulate_tx_frame(skb);
1597 mwl8k_add_dma_header(skb, 0);
1599 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1601 tx_info = IEEE80211_SKB_CB(skb);
1602 mwl8k_vif = MWL8K_VIF(tx_info->control.vif);
1604 if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
1605 wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
1606 wh->seq_ctrl |= cpu_to_le16(mwl8k_vif->seqno);
1607 mwl8k_vif->seqno += 0x10;
1610 /* Setup firmware control bit fields for each frame type. */
1613 if (ieee80211_is_mgmt(wh->frame_control) ||
1614 ieee80211_is_ctl(wh->frame_control)) {
1616 qos |= MWL8K_QOS_QLEN_UNSPEC | MWL8K_QOS_EOSP;
1617 } else if (ieee80211_is_data(wh->frame_control)) {
1619 if (is_multicast_ether_addr(wh->addr1))
1620 txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX;
1622 qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
1623 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
1624 qos |= MWL8K_QOS_ACK_POLICY_BLOCKACK;
1626 qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
1629 dma = pci_map_single(priv->pdev, skb->data,
1630 skb->len, PCI_DMA_TODEVICE);
1632 if (pci_dma_mapping_error(priv->pdev, dma)) {
1633 wiphy_debug(hw->wiphy,
1634 "failed to dma map skb, dropping TX frame.\n");
1639 spin_lock_bh(&priv->tx_lock);
1641 txq = priv->txq + index;
1643 BUG_ON(txq->skb[txq->tail] != NULL);
1644 txq->skb[txq->tail] = skb;
1646 tx = txq->txd + txq->tail;
1647 tx->data_rate = txdatarate;
1648 tx->tx_priority = index;
1649 tx->qos_control = cpu_to_le16(qos);
1650 tx->pkt_phys_addr = cpu_to_le32(dma);
1651 tx->pkt_len = cpu_to_le16(skb->len);
1653 if (!priv->ap_fw && tx_info->control.sta != NULL)
1654 tx->peer_id = MWL8K_STA(tx_info->control.sta)->peer_id;
1658 tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus);
1661 priv->pending_tx_pkts++;
1664 if (txq->tail == MWL8K_TX_DESCS)
1667 if (txq->head == txq->tail)
1668 ieee80211_stop_queue(hw, index);
1670 mwl8k_tx_start(priv);
1672 spin_unlock_bh(&priv->tx_lock);
1679 * We have the following requirements for issuing firmware commands:
1680 * - Some commands require that the packet transmit path is idle when
1681 * the command is issued. (For simplicity, we'll just quiesce the
1682 * transmit path for every command.)
1683 * - There are certain sequences of commands that need to be issued to
1684 * the hardware sequentially, with no other intervening commands.
1686 * This leads to an implementation of a "firmware lock" as a mutex that
1687 * can be taken recursively, and which is taken by both the low-level
1688 * command submission function (mwl8k_post_cmd) as well as any users of
1689 * that function that require issuing of an atomic sequence of commands,
1690 * and quiesces the transmit path whenever it's taken.
1692 static int mwl8k_fw_lock(struct ieee80211_hw *hw)
1694 struct mwl8k_priv *priv = hw->priv;
1696 if (priv->fw_mutex_owner != current) {
1699 mutex_lock(&priv->fw_mutex);
1700 ieee80211_stop_queues(hw);
1702 rc = mwl8k_tx_wait_empty(hw);
1704 ieee80211_wake_queues(hw);
1705 mutex_unlock(&priv->fw_mutex);
1710 priv->fw_mutex_owner = current;
1713 priv->fw_mutex_depth++;
1718 static void mwl8k_fw_unlock(struct ieee80211_hw *hw)
1720 struct mwl8k_priv *priv = hw->priv;
1722 if (!--priv->fw_mutex_depth) {
1723 ieee80211_wake_queues(hw);
1724 priv->fw_mutex_owner = NULL;
1725 mutex_unlock(&priv->fw_mutex);
1731 * Command processing.
1734 /* Timeout firmware commands after 10s */
1735 #define MWL8K_CMD_TIMEOUT_MS 10000
1737 static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd)
1739 DECLARE_COMPLETION_ONSTACK(cmd_wait);
1740 struct mwl8k_priv *priv = hw->priv;
1741 void __iomem *regs = priv->regs;
1742 dma_addr_t dma_addr;
1743 unsigned int dma_size;
1745 unsigned long timeout = 0;
1748 cmd->result = (__force __le16) 0xffff;
1749 dma_size = le16_to_cpu(cmd->length);
1750 dma_addr = pci_map_single(priv->pdev, cmd, dma_size,
1751 PCI_DMA_BIDIRECTIONAL);
1752 if (pci_dma_mapping_error(priv->pdev, dma_addr))
1755 rc = mwl8k_fw_lock(hw);
1757 pci_unmap_single(priv->pdev, dma_addr, dma_size,
1758 PCI_DMA_BIDIRECTIONAL);
1762 priv->hostcmd_wait = &cmd_wait;
1763 iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
1764 iowrite32(MWL8K_H2A_INT_DOORBELL,
1765 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1766 iowrite32(MWL8K_H2A_INT_DUMMY,
1767 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1769 timeout = wait_for_completion_timeout(&cmd_wait,
1770 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS));
1772 priv->hostcmd_wait = NULL;
1774 mwl8k_fw_unlock(hw);
1776 pci_unmap_single(priv->pdev, dma_addr, dma_size,
1777 PCI_DMA_BIDIRECTIONAL);
1780 wiphy_err(hw->wiphy, "Command %s timeout after %u ms\n",
1781 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
1782 MWL8K_CMD_TIMEOUT_MS);
1787 ms = MWL8K_CMD_TIMEOUT_MS - jiffies_to_msecs(timeout);
1789 rc = cmd->result ? -EINVAL : 0;
1791 wiphy_err(hw->wiphy, "Command %s error 0x%x\n",
1792 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
1793 le16_to_cpu(cmd->result));
1795 wiphy_notice(hw->wiphy, "Command %s took %d ms\n",
1796 mwl8k_cmd_name(cmd->code,
1804 static int mwl8k_post_pervif_cmd(struct ieee80211_hw *hw,
1805 struct ieee80211_vif *vif,
1806 struct mwl8k_cmd_pkt *cmd)
1809 cmd->macid = MWL8K_VIF(vif)->macid;
1810 return mwl8k_post_cmd(hw, cmd);
1814 * Setup code shared between STA and AP firmware images.
1816 static void mwl8k_setup_2ghz_band(struct ieee80211_hw *hw)
1818 struct mwl8k_priv *priv = hw->priv;
1820 BUILD_BUG_ON(sizeof(priv->channels_24) != sizeof(mwl8k_channels_24));
1821 memcpy(priv->channels_24, mwl8k_channels_24, sizeof(mwl8k_channels_24));
1823 BUILD_BUG_ON(sizeof(priv->rates_24) != sizeof(mwl8k_rates_24));
1824 memcpy(priv->rates_24, mwl8k_rates_24, sizeof(mwl8k_rates_24));
1826 priv->band_24.band = IEEE80211_BAND_2GHZ;
1827 priv->band_24.channels = priv->channels_24;
1828 priv->band_24.n_channels = ARRAY_SIZE(mwl8k_channels_24);
1829 priv->band_24.bitrates = priv->rates_24;
1830 priv->band_24.n_bitrates = ARRAY_SIZE(mwl8k_rates_24);
1832 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band_24;
1835 static void mwl8k_setup_5ghz_band(struct ieee80211_hw *hw)
1837 struct mwl8k_priv *priv = hw->priv;
1839 BUILD_BUG_ON(sizeof(priv->channels_50) != sizeof(mwl8k_channels_50));
1840 memcpy(priv->channels_50, mwl8k_channels_50, sizeof(mwl8k_channels_50));
1842 BUILD_BUG_ON(sizeof(priv->rates_50) != sizeof(mwl8k_rates_50));
1843 memcpy(priv->rates_50, mwl8k_rates_50, sizeof(mwl8k_rates_50));
1845 priv->band_50.band = IEEE80211_BAND_5GHZ;
1846 priv->band_50.channels = priv->channels_50;
1847 priv->band_50.n_channels = ARRAY_SIZE(mwl8k_channels_50);
1848 priv->band_50.bitrates = priv->rates_50;
1849 priv->band_50.n_bitrates = ARRAY_SIZE(mwl8k_rates_50);
1851 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &priv->band_50;
1855 * CMD_GET_HW_SPEC (STA version).
1857 struct mwl8k_cmd_get_hw_spec_sta {
1858 struct mwl8k_cmd_pkt header;
1860 __u8 host_interface;
1862 __u8 perm_addr[ETH_ALEN];
1867 __u8 mcs_bitmap[16];
1868 __le32 rx_queue_ptr;
1869 __le32 num_tx_queues;
1870 __le32 tx_queue_ptrs[MWL8K_TX_QUEUES];
1872 __le32 num_tx_desc_per_queue;
1876 #define MWL8K_CAP_MAX_AMSDU 0x20000000
1877 #define MWL8K_CAP_GREENFIELD 0x08000000
1878 #define MWL8K_CAP_AMPDU 0x04000000
1879 #define MWL8K_CAP_RX_STBC 0x01000000
1880 #define MWL8K_CAP_TX_STBC 0x00800000
1881 #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000
1882 #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000
1883 #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000
1884 #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000
1885 #define MWL8K_CAP_DELAY_BA 0x00003000
1886 #define MWL8K_CAP_MIMO 0x00000200
1887 #define MWL8K_CAP_40MHZ 0x00000100
1888 #define MWL8K_CAP_BAND_MASK 0x00000007
1889 #define MWL8K_CAP_5GHZ 0x00000004
1890 #define MWL8K_CAP_2GHZ4 0x00000001
1893 mwl8k_set_ht_caps(struct ieee80211_hw *hw,
1894 struct ieee80211_supported_band *band, u32 cap)
1899 band->ht_cap.ht_supported = 1;
1901 if (cap & MWL8K_CAP_MAX_AMSDU)
1902 band->ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
1903 if (cap & MWL8K_CAP_GREENFIELD)
1904 band->ht_cap.cap |= IEEE80211_HT_CAP_GRN_FLD;
1905 if (cap & MWL8K_CAP_AMPDU) {
1906 hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
1907 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1908 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1910 if (cap & MWL8K_CAP_RX_STBC)
1911 band->ht_cap.cap |= IEEE80211_HT_CAP_RX_STBC;
1912 if (cap & MWL8K_CAP_TX_STBC)
1913 band->ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
1914 if (cap & MWL8K_CAP_SHORTGI_40MHZ)
1915 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
1916 if (cap & MWL8K_CAP_SHORTGI_20MHZ)
1917 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
1918 if (cap & MWL8K_CAP_DELAY_BA)
1919 band->ht_cap.cap |= IEEE80211_HT_CAP_DELAY_BA;
1920 if (cap & MWL8K_CAP_40MHZ)
1921 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1923 rx_streams = hweight32(cap & MWL8K_CAP_RX_ANTENNA_MASK);
1924 tx_streams = hweight32(cap & MWL8K_CAP_TX_ANTENNA_MASK);
1926 band->ht_cap.mcs.rx_mask[0] = 0xff;
1927 if (rx_streams >= 2)
1928 band->ht_cap.mcs.rx_mask[1] = 0xff;
1929 if (rx_streams >= 3)
1930 band->ht_cap.mcs.rx_mask[2] = 0xff;
1931 band->ht_cap.mcs.rx_mask[4] = 0x01;
1932 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1934 if (rx_streams != tx_streams) {
1935 band->ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
1936 band->ht_cap.mcs.tx_params |= (tx_streams - 1) <<
1937 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
1942 mwl8k_set_caps(struct ieee80211_hw *hw, u32 caps)
1944 struct mwl8k_priv *priv = hw->priv;
1946 if ((caps & MWL8K_CAP_2GHZ4) || !(caps & MWL8K_CAP_BAND_MASK)) {
1947 mwl8k_setup_2ghz_band(hw);
1948 if (caps & MWL8K_CAP_MIMO)
1949 mwl8k_set_ht_caps(hw, &priv->band_24, caps);
1952 if (caps & MWL8K_CAP_5GHZ) {
1953 mwl8k_setup_5ghz_band(hw);
1954 if (caps & MWL8K_CAP_MIMO)
1955 mwl8k_set_ht_caps(hw, &priv->band_50, caps);
1959 static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw *hw)
1961 struct mwl8k_priv *priv = hw->priv;
1962 struct mwl8k_cmd_get_hw_spec_sta *cmd;
1966 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1970 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
1971 cmd->header.length = cpu_to_le16(sizeof(*cmd));
1973 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
1974 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
1975 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
1976 cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES);
1977 for (i = 0; i < MWL8K_TX_QUEUES; i++)
1978 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma);
1979 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
1980 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
1982 rc = mwl8k_post_cmd(hw, &cmd->header);
1985 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
1986 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
1987 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
1988 priv->hw_rev = cmd->hw_rev;
1989 mwl8k_set_caps(hw, le32_to_cpu(cmd->caps));
1990 priv->ap_macids_supported = 0x00000000;
1991 priv->sta_macids_supported = 0x00000001;
1999 * CMD_GET_HW_SPEC (AP version).
2001 struct mwl8k_cmd_get_hw_spec_ap {
2002 struct mwl8k_cmd_pkt header;
2004 __u8 host_interface;
2007 __u8 perm_addr[ETH_ALEN];
2018 __le32 fw_api_version;
2021 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw)
2023 struct mwl8k_priv *priv = hw->priv;
2024 struct mwl8k_cmd_get_hw_spec_ap *cmd;
2028 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2032 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
2033 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2035 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
2036 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2038 rc = mwl8k_post_cmd(hw, &cmd->header);
2043 api_version = le32_to_cpu(cmd->fw_api_version);
2044 if (priv->device_info->fw_api_ap != api_version) {
2045 printk(KERN_ERR "%s: Unsupported fw API version for %s."
2046 " Expected %d got %d.\n", MWL8K_NAME,
2047 priv->device_info->part_name,
2048 priv->device_info->fw_api_ap,
2053 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
2054 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
2055 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
2056 priv->hw_rev = cmd->hw_rev;
2057 mwl8k_setup_2ghz_band(hw);
2058 priv->ap_macids_supported = 0x000000ff;
2059 priv->sta_macids_supported = 0x00000000;
2061 off = le32_to_cpu(cmd->wcbbase0) & 0xffff;
2062 iowrite32(priv->txq[0].txd_dma, priv->sram + off);
2064 off = le32_to_cpu(cmd->rxwrptr) & 0xffff;
2065 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2067 off = le32_to_cpu(cmd->rxrdptr) & 0xffff;
2068 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2070 off = le32_to_cpu(cmd->wcbbase1) & 0xffff;
2071 iowrite32(priv->txq[1].txd_dma, priv->sram + off);
2073 off = le32_to_cpu(cmd->wcbbase2) & 0xffff;
2074 iowrite32(priv->txq[2].txd_dma, priv->sram + off);
2076 off = le32_to_cpu(cmd->wcbbase3) & 0xffff;
2077 iowrite32(priv->txq[3].txd_dma, priv->sram + off);
2088 struct mwl8k_cmd_set_hw_spec {
2089 struct mwl8k_cmd_pkt header;
2091 __u8 host_interface;
2093 __u8 perm_addr[ETH_ALEN];
2098 __le32 rx_queue_ptr;
2099 __le32 num_tx_queues;
2100 __le32 tx_queue_ptrs[MWL8K_TX_QUEUES];
2102 __le32 num_tx_desc_per_queue;
2106 #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
2107 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
2108 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
2110 static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw *hw)
2112 struct mwl8k_priv *priv = hw->priv;
2113 struct mwl8k_cmd_set_hw_spec *cmd;
2117 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2121 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_HW_SPEC);
2122 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2124 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2125 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
2126 cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES);
2129 * Mac80211 stack has Q0 as highest priority and Q3 as lowest in
2130 * that order. Firmware has Q3 as highest priority and Q0 as lowest
2131 * in that order. Map Q3 of mac80211 to Q0 of firmware so that the
2132 * priority is interpreted the right way in firmware.
2134 for (i = 0; i < MWL8K_TX_QUEUES; i++) {
2135 int j = MWL8K_TX_QUEUES - 1 - i;
2136 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[j].txd_dma);
2139 cmd->flags = cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT |
2140 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP |
2141 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON);
2142 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
2143 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
2145 rc = mwl8k_post_cmd(hw, &cmd->header);
2152 * CMD_MAC_MULTICAST_ADR.
2154 struct mwl8k_cmd_mac_multicast_adr {
2155 struct mwl8k_cmd_pkt header;
2158 __u8 addr[0][ETH_ALEN];
2161 #define MWL8K_ENABLE_RX_DIRECTED 0x0001
2162 #define MWL8K_ENABLE_RX_MULTICAST 0x0002
2163 #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
2164 #define MWL8K_ENABLE_RX_BROADCAST 0x0008
2166 static struct mwl8k_cmd_pkt *
2167 __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti,
2168 struct netdev_hw_addr_list *mc_list)
2170 struct mwl8k_priv *priv = hw->priv;
2171 struct mwl8k_cmd_mac_multicast_adr *cmd;
2176 mc_count = netdev_hw_addr_list_count(mc_list);
2178 if (allmulti || mc_count > priv->num_mcaddrs) {
2183 size = sizeof(*cmd) + mc_count * ETH_ALEN;
2185 cmd = kzalloc(size, GFP_ATOMIC);
2189 cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR);
2190 cmd->header.length = cpu_to_le16(size);
2191 cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED |
2192 MWL8K_ENABLE_RX_BROADCAST);
2195 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST);
2196 } else if (mc_count) {
2197 struct netdev_hw_addr *ha;
2200 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST);
2201 cmd->numaddr = cpu_to_le16(mc_count);
2202 netdev_hw_addr_list_for_each(ha, mc_list) {
2203 memcpy(cmd->addr[i], ha->addr, ETH_ALEN);
2207 return &cmd->header;
2213 struct mwl8k_cmd_get_stat {
2214 struct mwl8k_cmd_pkt header;
2218 #define MWL8K_STAT_ACK_FAILURE 9
2219 #define MWL8K_STAT_RTS_FAILURE 12
2220 #define MWL8K_STAT_FCS_ERROR 24
2221 #define MWL8K_STAT_RTS_SUCCESS 11
2223 static int mwl8k_cmd_get_stat(struct ieee80211_hw *hw,
2224 struct ieee80211_low_level_stats *stats)
2226 struct mwl8k_cmd_get_stat *cmd;
2229 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2233 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT);
2234 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2236 rc = mwl8k_post_cmd(hw, &cmd->header);
2238 stats->dot11ACKFailureCount =
2239 le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]);
2240 stats->dot11RTSFailureCount =
2241 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]);
2242 stats->dot11FCSErrorCount =
2243 le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]);
2244 stats->dot11RTSSuccessCount =
2245 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]);
2253 * CMD_RADIO_CONTROL.
2255 struct mwl8k_cmd_radio_control {
2256 struct mwl8k_cmd_pkt header;
2263 mwl8k_cmd_radio_control(struct ieee80211_hw *hw, bool enable, bool force)
2265 struct mwl8k_priv *priv = hw->priv;
2266 struct mwl8k_cmd_radio_control *cmd;
2269 if (enable == priv->radio_on && !force)
2272 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2276 cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL);
2277 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2278 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2279 cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1);
2280 cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000);
2282 rc = mwl8k_post_cmd(hw, &cmd->header);
2286 priv->radio_on = enable;
2291 static int mwl8k_cmd_radio_disable(struct ieee80211_hw *hw)
2293 return mwl8k_cmd_radio_control(hw, 0, 0);
2296 static int mwl8k_cmd_radio_enable(struct ieee80211_hw *hw)
2298 return mwl8k_cmd_radio_control(hw, 1, 0);
2302 mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble)
2304 struct mwl8k_priv *priv = hw->priv;
2306 priv->radio_short_preamble = short_preamble;
2308 return mwl8k_cmd_radio_control(hw, 1, 1);
2314 #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8
2316 struct mwl8k_cmd_rf_tx_power {
2317 struct mwl8k_cmd_pkt header;
2319 __le16 support_level;
2320 __le16 current_level;
2322 __le16 power_level_list[MWL8K_RF_TX_POWER_LEVEL_TOTAL];
2325 static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw *hw, int dBm)
2327 struct mwl8k_cmd_rf_tx_power *cmd;
2330 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2334 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER);
2335 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2336 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2337 cmd->support_level = cpu_to_le16(dBm);
2339 rc = mwl8k_post_cmd(hw, &cmd->header);
2348 #define MWL8K_TX_POWER_LEVEL_TOTAL 12
2350 struct mwl8k_cmd_tx_power {
2351 struct mwl8k_cmd_pkt header;
2357 __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL];
2358 } __attribute__((packed));
2360 static int mwl8k_cmd_tx_power(struct ieee80211_hw *hw,
2361 struct ieee80211_conf *conf,
2364 struct ieee80211_channel *channel = conf->channel;
2365 struct mwl8k_cmd_tx_power *cmd;
2369 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2373 cmd->header.code = cpu_to_le16(MWL8K_CMD_TX_POWER);
2374 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2375 cmd->action = cpu_to_le16(MWL8K_CMD_SET_LIST);
2377 if (channel->band == IEEE80211_BAND_2GHZ)
2378 cmd->band = cpu_to_le16(0x1);
2379 else if (channel->band == IEEE80211_BAND_5GHZ)
2380 cmd->band = cpu_to_le16(0x4);
2382 cmd->channel = channel->hw_value;
2384 if (conf->channel_type == NL80211_CHAN_NO_HT ||
2385 conf->channel_type == NL80211_CHAN_HT20) {
2386 cmd->bw = cpu_to_le16(0x2);
2388 cmd->bw = cpu_to_le16(0x4);
2389 if (conf->channel_type == NL80211_CHAN_HT40MINUS)
2390 cmd->sub_ch = cpu_to_le16(0x3);
2391 else if (conf->channel_type == NL80211_CHAN_HT40PLUS)
2392 cmd->sub_ch = cpu_to_le16(0x1);
2395 for (i = 0; i < MWL8K_TX_POWER_LEVEL_TOTAL; i++)
2396 cmd->power_level_list[i] = cpu_to_le16(pwr);
2398 rc = mwl8k_post_cmd(hw, &cmd->header);
2407 struct mwl8k_cmd_rf_antenna {
2408 struct mwl8k_cmd_pkt header;
2413 #define MWL8K_RF_ANTENNA_RX 1
2414 #define MWL8K_RF_ANTENNA_TX 2
2417 mwl8k_cmd_rf_antenna(struct ieee80211_hw *hw, int antenna, int mask)
2419 struct mwl8k_cmd_rf_antenna *cmd;
2422 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2426 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_ANTENNA);
2427 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2428 cmd->antenna = cpu_to_le16(antenna);
2429 cmd->mode = cpu_to_le16(mask);
2431 rc = mwl8k_post_cmd(hw, &cmd->header);
2440 struct mwl8k_cmd_set_beacon {
2441 struct mwl8k_cmd_pkt header;
2446 static int mwl8k_cmd_set_beacon(struct ieee80211_hw *hw,
2447 struct ieee80211_vif *vif, u8 *beacon, int len)
2449 struct mwl8k_cmd_set_beacon *cmd;
2452 cmd = kzalloc(sizeof(*cmd) + len, GFP_KERNEL);
2456 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_BEACON);
2457 cmd->header.length = cpu_to_le16(sizeof(*cmd) + len);
2458 cmd->beacon_len = cpu_to_le16(len);
2459 memcpy(cmd->beacon, beacon, len);
2461 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
2470 struct mwl8k_cmd_set_pre_scan {
2471 struct mwl8k_cmd_pkt header;
2474 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw)
2476 struct mwl8k_cmd_set_pre_scan *cmd;
2479 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2483 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN);
2484 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2486 rc = mwl8k_post_cmd(hw, &cmd->header);
2493 * CMD_SET_POST_SCAN.
2495 struct mwl8k_cmd_set_post_scan {
2496 struct mwl8k_cmd_pkt header;
2498 __u8 bssid[ETH_ALEN];
2502 mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, const __u8 *mac)
2504 struct mwl8k_cmd_set_post_scan *cmd;
2507 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2511 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN);
2512 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2514 memcpy(cmd->bssid, mac, ETH_ALEN);
2516 rc = mwl8k_post_cmd(hw, &cmd->header);
2523 * CMD_SET_RF_CHANNEL.
2525 struct mwl8k_cmd_set_rf_channel {
2526 struct mwl8k_cmd_pkt header;
2528 __u8 current_channel;
2529 __le32 channel_flags;
2532 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw,
2533 struct ieee80211_conf *conf)
2535 struct ieee80211_channel *channel = conf->channel;
2536 struct mwl8k_cmd_set_rf_channel *cmd;
2539 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2543 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL);
2544 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2545 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2546 cmd->current_channel = channel->hw_value;
2548 if (channel->band == IEEE80211_BAND_2GHZ)
2549 cmd->channel_flags |= cpu_to_le32(0x00000001);
2550 else if (channel->band == IEEE80211_BAND_5GHZ)
2551 cmd->channel_flags |= cpu_to_le32(0x00000004);
2553 if (conf->channel_type == NL80211_CHAN_NO_HT ||
2554 conf->channel_type == NL80211_CHAN_HT20)
2555 cmd->channel_flags |= cpu_to_le32(0x00000080);
2556 else if (conf->channel_type == NL80211_CHAN_HT40MINUS)
2557 cmd->channel_flags |= cpu_to_le32(0x000001900);
2558 else if (conf->channel_type == NL80211_CHAN_HT40PLUS)
2559 cmd->channel_flags |= cpu_to_le32(0x000000900);
2561 rc = mwl8k_post_cmd(hw, &cmd->header);
2570 #define MWL8K_FRAME_PROT_DISABLED 0x00
2571 #define MWL8K_FRAME_PROT_11G 0x07
2572 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
2573 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
2575 struct mwl8k_cmd_update_set_aid {
2576 struct mwl8k_cmd_pkt header;
2579 /* AP's MAC address (BSSID) */
2580 __u8 bssid[ETH_ALEN];
2581 __le16 protection_mode;
2582 __u8 supp_rates[14];
2585 static void legacy_rate_mask_to_array(u8 *rates, u32 mask)
2591 * Clear nonstandard rates 4 and 13.
2595 for (i = 0, j = 0; i < 14; i++) {
2596 if (mask & (1 << i))
2597 rates[j++] = mwl8k_rates_24[i].hw_value;
2602 mwl8k_cmd_set_aid(struct ieee80211_hw *hw,
2603 struct ieee80211_vif *vif, u32 legacy_rate_mask)
2605 struct mwl8k_cmd_update_set_aid *cmd;
2609 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2613 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID);
2614 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2615 cmd->aid = cpu_to_le16(vif->bss_conf.aid);
2616 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
2618 if (vif->bss_conf.use_cts_prot) {
2619 prot_mode = MWL8K_FRAME_PROT_11G;
2621 switch (vif->bss_conf.ht_operation_mode &
2622 IEEE80211_HT_OP_MODE_PROTECTION) {
2623 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
2624 prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY;
2626 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
2627 prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL;
2630 prot_mode = MWL8K_FRAME_PROT_DISABLED;
2634 cmd->protection_mode = cpu_to_le16(prot_mode);
2636 legacy_rate_mask_to_array(cmd->supp_rates, legacy_rate_mask);
2638 rc = mwl8k_post_cmd(hw, &cmd->header);
2647 struct mwl8k_cmd_set_rate {
2648 struct mwl8k_cmd_pkt header;
2649 __u8 legacy_rates[14];
2651 /* Bitmap for supported MCS codes. */
2657 mwl8k_cmd_set_rate(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
2658 u32 legacy_rate_mask, u8 *mcs_rates)
2660 struct mwl8k_cmd_set_rate *cmd;
2663 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2667 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE);
2668 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2669 legacy_rate_mask_to_array(cmd->legacy_rates, legacy_rate_mask);
2670 memcpy(cmd->mcs_set, mcs_rates, 16);
2672 rc = mwl8k_post_cmd(hw, &cmd->header);
2679 * CMD_FINALIZE_JOIN.
2681 #define MWL8K_FJ_BEACON_MAXLEN 128
2683 struct mwl8k_cmd_finalize_join {
2684 struct mwl8k_cmd_pkt header;
2685 __le32 sleep_interval; /* Number of beacon periods to sleep */
2686 __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN];
2689 static int mwl8k_cmd_finalize_join(struct ieee80211_hw *hw, void *frame,
2690 int framelen, int dtim)
2692 struct mwl8k_cmd_finalize_join *cmd;
2693 struct ieee80211_mgmt *payload = frame;
2697 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2701 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN);
2702 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2703 cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1);
2705 payload_len = framelen - ieee80211_hdrlen(payload->frame_control);
2706 if (payload_len < 0)
2708 else if (payload_len > MWL8K_FJ_BEACON_MAXLEN)
2709 payload_len = MWL8K_FJ_BEACON_MAXLEN;
2711 memcpy(cmd->beacon_data, &payload->u.beacon, payload_len);
2713 rc = mwl8k_post_cmd(hw, &cmd->header);
2720 * CMD_SET_RTS_THRESHOLD.
2722 struct mwl8k_cmd_set_rts_threshold {
2723 struct mwl8k_cmd_pkt header;
2729 mwl8k_cmd_set_rts_threshold(struct ieee80211_hw *hw, int rts_thresh)
2731 struct mwl8k_cmd_set_rts_threshold *cmd;
2734 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2738 cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD);
2739 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2740 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2741 cmd->threshold = cpu_to_le16(rts_thresh);
2743 rc = mwl8k_post_cmd(hw, &cmd->header);
2752 struct mwl8k_cmd_set_slot {
2753 struct mwl8k_cmd_pkt header;
2758 static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time)
2760 struct mwl8k_cmd_set_slot *cmd;
2763 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2767 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT);
2768 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2769 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2770 cmd->short_slot = short_slot_time;
2772 rc = mwl8k_post_cmd(hw, &cmd->header);
2779 * CMD_SET_EDCA_PARAMS.
2781 struct mwl8k_cmd_set_edca_params {
2782 struct mwl8k_cmd_pkt header;
2784 /* See MWL8K_SET_EDCA_XXX below */
2787 /* TX opportunity in units of 32 us */
2792 /* Log exponent of max contention period: 0...15 */
2795 /* Log exponent of min contention period: 0...15 */
2798 /* Adaptive interframe spacing in units of 32us */
2801 /* TX queue to configure */
2805 /* Log exponent of max contention period: 0...15 */
2808 /* Log exponent of min contention period: 0...15 */
2811 /* Adaptive interframe spacing in units of 32us */
2814 /* TX queue to configure */
2820 #define MWL8K_SET_EDCA_CW 0x01
2821 #define MWL8K_SET_EDCA_TXOP 0x02
2822 #define MWL8K_SET_EDCA_AIFS 0x04
2824 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
2825 MWL8K_SET_EDCA_TXOP | \
2826 MWL8K_SET_EDCA_AIFS)
2829 mwl8k_cmd_set_edca_params(struct ieee80211_hw *hw, __u8 qnum,
2830 __u16 cw_min, __u16 cw_max,
2831 __u8 aifs, __u16 txop)
2833 struct mwl8k_priv *priv = hw->priv;
2834 struct mwl8k_cmd_set_edca_params *cmd;
2837 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2841 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS);
2842 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2843 cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL);
2844 cmd->txop = cpu_to_le16(txop);
2846 cmd->ap.log_cw_max = cpu_to_le32(ilog2(cw_max + 1));
2847 cmd->ap.log_cw_min = cpu_to_le32(ilog2(cw_min + 1));
2848 cmd->ap.aifs = aifs;
2851 cmd->sta.log_cw_max = (u8)ilog2(cw_max + 1);
2852 cmd->sta.log_cw_min = (u8)ilog2(cw_min + 1);
2853 cmd->sta.aifs = aifs;
2854 cmd->sta.txq = qnum;
2857 rc = mwl8k_post_cmd(hw, &cmd->header);
2866 struct mwl8k_cmd_set_wmm_mode {
2867 struct mwl8k_cmd_pkt header;
2871 static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw *hw, bool enable)
2873 struct mwl8k_priv *priv = hw->priv;
2874 struct mwl8k_cmd_set_wmm_mode *cmd;
2877 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2881 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE);
2882 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2883 cmd->action = cpu_to_le16(!!enable);
2885 rc = mwl8k_post_cmd(hw, &cmd->header);
2889 priv->wmm_enabled = enable;
2897 struct mwl8k_cmd_mimo_config {
2898 struct mwl8k_cmd_pkt header;
2900 __u8 rx_antenna_map;
2901 __u8 tx_antenna_map;
2904 static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx)
2906 struct mwl8k_cmd_mimo_config *cmd;
2909 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2913 cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG);
2914 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2915 cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET);
2916 cmd->rx_antenna_map = rx;
2917 cmd->tx_antenna_map = tx;
2919 rc = mwl8k_post_cmd(hw, &cmd->header);
2926 * CMD_USE_FIXED_RATE (STA version).
2928 struct mwl8k_cmd_use_fixed_rate_sta {
2929 struct mwl8k_cmd_pkt header;
2931 __le32 allow_rate_drop;
2935 __le32 enable_retry;
2944 #define MWL8K_USE_AUTO_RATE 0x0002
2945 #define MWL8K_UCAST_RATE 0
2947 static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw *hw)
2949 struct mwl8k_cmd_use_fixed_rate_sta *cmd;
2952 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2956 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
2957 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2958 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
2959 cmd->rate_type = cpu_to_le32(MWL8K_UCAST_RATE);
2961 rc = mwl8k_post_cmd(hw, &cmd->header);
2968 * CMD_USE_FIXED_RATE (AP version).
2970 struct mwl8k_cmd_use_fixed_rate_ap {
2971 struct mwl8k_cmd_pkt header;
2973 __le32 allow_rate_drop;
2975 struct mwl8k_rate_entry_ap {
2977 __le32 enable_retry;
2982 u8 multicast_rate_type;
2987 mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw *hw, int mcast, int mgmt)
2989 struct mwl8k_cmd_use_fixed_rate_ap *cmd;
2992 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2996 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
2997 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2998 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
2999 cmd->multicast_rate = mcast;
3000 cmd->management_rate = mgmt;
3002 rc = mwl8k_post_cmd(hw, &cmd->header);
3009 * CMD_ENABLE_SNIFFER.
3011 struct mwl8k_cmd_enable_sniffer {
3012 struct mwl8k_cmd_pkt header;
3016 static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw *hw, bool enable)
3018 struct mwl8k_cmd_enable_sniffer *cmd;
3021 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3025 cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER);
3026 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3027 cmd->action = cpu_to_le32(!!enable);
3029 rc = mwl8k_post_cmd(hw, &cmd->header);
3038 struct mwl8k_cmd_set_mac_addr {
3039 struct mwl8k_cmd_pkt header;
3043 __u8 mac_addr[ETH_ALEN];
3045 __u8 mac_addr[ETH_ALEN];
3049 #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0
3050 #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1
3051 #define MWL8K_MAC_TYPE_PRIMARY_AP 2
3052 #define MWL8K_MAC_TYPE_SECONDARY_AP 3
3054 static int mwl8k_cmd_set_mac_addr(struct ieee80211_hw *hw,
3055 struct ieee80211_vif *vif, u8 *mac)
3057 struct mwl8k_priv *priv = hw->priv;
3058 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3059 struct mwl8k_cmd_set_mac_addr *cmd;
3063 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3064 if (vif != NULL && vif->type == NL80211_IFTYPE_STATION) {
3065 if (mwl8k_vif->macid + 1 == ffs(priv->sta_macids_supported))
3066 mac_type = MWL8K_MAC_TYPE_PRIMARY_CLIENT;
3068 mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT;
3069 } else if (vif != NULL && vif->type == NL80211_IFTYPE_AP) {
3070 if (mwl8k_vif->macid + 1 == ffs(priv->ap_macids_supported))
3071 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3073 mac_type = MWL8K_MAC_TYPE_SECONDARY_AP;
3076 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3080 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR);
3081 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3083 cmd->mbss.mac_type = cpu_to_le16(mac_type);
3084 memcpy(cmd->mbss.mac_addr, mac, ETH_ALEN);
3086 memcpy(cmd->mac_addr, mac, ETH_ALEN);
3089 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3096 * CMD_SET_RATEADAPT_MODE.
3098 struct mwl8k_cmd_set_rate_adapt_mode {
3099 struct mwl8k_cmd_pkt header;
3104 static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw *hw, __u16 mode)
3106 struct mwl8k_cmd_set_rate_adapt_mode *cmd;
3109 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3113 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE);
3114 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3115 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3116 cmd->mode = cpu_to_le16(mode);
3118 rc = mwl8k_post_cmd(hw, &cmd->header);
3127 struct mwl8k_cmd_bss_start {
3128 struct mwl8k_cmd_pkt header;
3132 static int mwl8k_cmd_bss_start(struct ieee80211_hw *hw,
3133 struct ieee80211_vif *vif, int enable)
3135 struct mwl8k_cmd_bss_start *cmd;
3138 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3142 cmd->header.code = cpu_to_le16(MWL8K_CMD_BSS_START);
3143 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3144 cmd->enable = cpu_to_le32(enable);
3146 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3155 struct mwl8k_cmd_set_new_stn {
3156 struct mwl8k_cmd_pkt header;
3162 __le32 legacy_rates;
3165 __le16 ht_capabilities_info;
3166 __u8 mac_ht_param_info;
3168 __u8 control_channel;
3177 #define MWL8K_STA_ACTION_ADD 0
3178 #define MWL8K_STA_ACTION_REMOVE 2
3180 static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw *hw,
3181 struct ieee80211_vif *vif,
3182 struct ieee80211_sta *sta)
3184 struct mwl8k_cmd_set_new_stn *cmd;
3188 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3192 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
3193 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3194 cmd->aid = cpu_to_le16(sta->aid);
3195 memcpy(cmd->mac_addr, sta->addr, ETH_ALEN);
3196 cmd->stn_id = cpu_to_le16(sta->aid);
3197 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_ADD);
3198 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ)
3199 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
3201 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
3202 cmd->legacy_rates = cpu_to_le32(rates);
3203 if (sta->ht_cap.ht_supported) {
3204 cmd->ht_rates[0] = sta->ht_cap.mcs.rx_mask[0];
3205 cmd->ht_rates[1] = sta->ht_cap.mcs.rx_mask[1];
3206 cmd->ht_rates[2] = sta->ht_cap.mcs.rx_mask[2];
3207 cmd->ht_rates[3] = sta->ht_cap.mcs.rx_mask[3];
3208 cmd->ht_capabilities_info = cpu_to_le16(sta->ht_cap.cap);
3209 cmd->mac_ht_param_info = (sta->ht_cap.ampdu_factor & 3) |
3210 ((sta->ht_cap.ampdu_density & 7) << 2);
3211 cmd->is_qos_sta = 1;
3214 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3220 static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw *hw,
3221 struct ieee80211_vif *vif)
3223 struct mwl8k_cmd_set_new_stn *cmd;
3226 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3230 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
3231 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3232 memcpy(cmd->mac_addr, vif->addr, ETH_ALEN);
3234 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3240 static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw *hw,
3241 struct ieee80211_vif *vif, u8 *addr)
3243 struct mwl8k_cmd_set_new_stn *cmd;
3246 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3250 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
3251 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3252 memcpy(cmd->mac_addr, addr, ETH_ALEN);
3253 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_REMOVE);
3255 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3262 * CMD_UPDATE_ENCRYPTION.
3265 #define MAX_ENCR_KEY_LENGTH 16
3266 #define MIC_KEY_LENGTH 8
3268 struct mwl8k_cmd_update_encryption {
3269 struct mwl8k_cmd_pkt header;
3276 } __attribute__((packed));
3278 struct mwl8k_cmd_set_key {
3279 struct mwl8k_cmd_pkt header;
3288 __u8 key_material[MAX_ENCR_KEY_LENGTH];
3289 __u8 tkip_tx_mic_key[MIC_KEY_LENGTH];
3290 __u8 tkip_rx_mic_key[MIC_KEY_LENGTH];
3291 __le16 tkip_rsc_low;
3292 __le32 tkip_rsc_high;
3293 __le16 tkip_tsc_low;
3294 __le32 tkip_tsc_high;
3296 } __attribute__((packed));
3301 MWL8K_ENCR_REMOVE_KEY,
3302 MWL8K_ENCR_SET_GROUP_KEY,
3305 #define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0
3306 #define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1
3307 #define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4
3308 #define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7
3309 #define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8
3317 #define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004
3318 #define MWL8K_KEY_FLAG_PAIRWISE 0x00000008
3319 #define MWL8K_KEY_FLAG_TSC_VALID 0x00000040
3320 #define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000
3321 #define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000
3323 static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw *hw,
3324 struct ieee80211_vif *vif,
3328 struct mwl8k_cmd_update_encryption *cmd;
3331 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3335 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
3336 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3337 cmd->action = cpu_to_le32(MWL8K_ENCR_ENABLE);
3338 memcpy(cmd->mac_addr, addr, ETH_ALEN);
3339 cmd->encr_type = encr_type;
3341 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3347 static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key *cmd,
3349 struct ieee80211_key_conf *key)
3351 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
3352 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3353 cmd->length = cpu_to_le16(sizeof(*cmd) -
3354 offsetof(struct mwl8k_cmd_set_key, length));
3355 cmd->key_id = cpu_to_le32(key->keyidx);
3356 cmd->key_len = cpu_to_le16(key->keylen);
3357 memcpy(cmd->mac_addr, addr, ETH_ALEN);
3359 switch (key->cipher) {
3360 case WLAN_CIPHER_SUITE_WEP40:
3361 case WLAN_CIPHER_SUITE_WEP104:
3362 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_WEP);
3363 if (key->keyidx == 0)
3364 cmd->key_info = cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY);
3367 case WLAN_CIPHER_SUITE_TKIP:
3368 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_TKIP);
3369 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
3370 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
3371 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
3372 cmd->key_info |= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID
3373 | MWL8K_KEY_FLAG_TSC_VALID);
3375 case WLAN_CIPHER_SUITE_CCMP:
3376 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_CCMP);
3377 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
3378 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
3379 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
3388 static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw *hw,
3389 struct ieee80211_vif *vif,
3391 struct ieee80211_key_conf *key)
3393 struct mwl8k_cmd_set_key *cmd;
3398 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3400 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3404 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
3410 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
3411 action = MWL8K_ENCR_SET_KEY;
3413 action = MWL8K_ENCR_SET_GROUP_KEY;
3415 switch (key->cipher) {
3416 case WLAN_CIPHER_SUITE_WEP40:
3417 case WLAN_CIPHER_SUITE_WEP104:
3418 if (!mwl8k_vif->wep_key_conf[idx].enabled) {
3419 memcpy(mwl8k_vif->wep_key_conf[idx].key, key,
3420 sizeof(*key) + key->keylen);
3421 mwl8k_vif->wep_key_conf[idx].enabled = 1;
3425 action = MWL8K_ENCR_SET_KEY;
3427 case WLAN_CIPHER_SUITE_TKIP:
3428 keymlen = MAX_ENCR_KEY_LENGTH + 2 * MIC_KEY_LENGTH;
3430 case WLAN_CIPHER_SUITE_CCMP:
3431 keymlen = key->keylen;
3438 memcpy(cmd->key_material, key->key, keymlen);
3439 cmd->action = cpu_to_le32(action);
3441 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3448 static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw *hw,
3449 struct ieee80211_vif *vif,
3451 struct ieee80211_key_conf *key)
3453 struct mwl8k_cmd_set_key *cmd;
3455 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3457 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3461 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
3465 if (key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
3466 WLAN_CIPHER_SUITE_WEP104)
3467 mwl8k_vif->wep_key_conf[key->keyidx].enabled = 0;
3469 cmd->action = cpu_to_le32(MWL8K_ENCR_REMOVE_KEY);
3471 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3478 static int mwl8k_set_key(struct ieee80211_hw *hw,
3479 enum set_key_cmd cmd_param,
3480 struct ieee80211_vif *vif,
3481 struct ieee80211_sta *sta,
3482 struct ieee80211_key_conf *key)
3487 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3489 if (vif->type == NL80211_IFTYPE_STATION)
3493 addr = hw->wiphy->perm_addr;
3497 if (cmd_param == SET_KEY) {
3498 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
3499 rc = mwl8k_cmd_encryption_set_key(hw, vif, addr, key);
3503 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40)
3504 || (key->cipher == WLAN_CIPHER_SUITE_WEP104))
3505 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_WEP;
3507 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED;
3509 rc = mwl8k_cmd_update_encryption_enable(hw, vif, addr,
3514 mwl8k_vif->is_hw_crypto_enabled = true;
3517 rc = mwl8k_cmd_encryption_remove_key(hw, vif, addr, key);
3522 mwl8k_vif->is_hw_crypto_enabled = false;
3532 struct ewc_ht_info {
3538 struct peer_capability_info {
3539 /* Peer type - AP vs. STA. */
3542 /* Basic 802.11 capabilities from assoc resp. */
3545 /* Set if peer supports 802.11n high throughput (HT). */
3548 /* Valid if HT is supported. */
3550 __u8 extended_ht_caps;
3551 struct ewc_ht_info ewc_info;
3553 /* Legacy rate table. Intersection of our rates and peer rates. */
3554 __u8 legacy_rates[12];
3556 /* HT rate table. Intersection of our rates and peer rates. */
3560 /* If set, interoperability mode, no proprietary extensions. */
3564 __le16 amsdu_enabled;
3567 struct mwl8k_cmd_update_stadb {
3568 struct mwl8k_cmd_pkt header;
3570 /* See STADB_ACTION_TYPE */
3573 /* Peer MAC address */
3574 __u8 peer_addr[ETH_ALEN];
3578 /* Peer info - valid during add/update. */
3579 struct peer_capability_info peer_info;
3582 #define MWL8K_STA_DB_MODIFY_ENTRY 1
3583 #define MWL8K_STA_DB_DEL_ENTRY 2
3585 /* Peer Entry flags - used to define the type of the peer node */
3586 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
3588 static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw,
3589 struct ieee80211_vif *vif,
3590 struct ieee80211_sta *sta)
3592 struct mwl8k_cmd_update_stadb *cmd;
3593 struct peer_capability_info *p;
3597 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3601 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
3602 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3603 cmd->action = cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY);
3604 memcpy(cmd->peer_addr, sta->addr, ETH_ALEN);
3606 p = &cmd->peer_info;
3607 p->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT;
3608 p->basic_caps = cpu_to_le16(vif->bss_conf.assoc_capability);
3609 p->ht_support = sta->ht_cap.ht_supported;
3610 p->ht_caps = cpu_to_le16(sta->ht_cap.cap);
3611 p->extended_ht_caps = (sta->ht_cap.ampdu_factor & 3) |
3612 ((sta->ht_cap.ampdu_density & 7) << 2);
3613 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ)
3614 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
3616 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
3617 legacy_rate_mask_to_array(p->legacy_rates, rates);
3618 memcpy(p->ht_rates, sta->ht_cap.mcs.rx_mask, 16);
3620 p->amsdu_enabled = 0;
3622 rc = mwl8k_post_cmd(hw, &cmd->header);
3625 return rc ? rc : p->station_id;
3628 static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw *hw,
3629 struct ieee80211_vif *vif, u8 *addr)
3631 struct mwl8k_cmd_update_stadb *cmd;
3634 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3638 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
3639 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3640 cmd->action = cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY);
3641 memcpy(cmd->peer_addr, addr, ETH_ALEN);
3643 rc = mwl8k_post_cmd(hw, &cmd->header);
3651 * Interrupt handling.
3653 static irqreturn_t mwl8k_interrupt(int irq, void *dev_id)
3655 struct ieee80211_hw *hw = dev_id;
3656 struct mwl8k_priv *priv = hw->priv;
3659 status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
3663 if (status & MWL8K_A2H_INT_TX_DONE) {
3664 status &= ~MWL8K_A2H_INT_TX_DONE;
3665 tasklet_schedule(&priv->poll_tx_task);
3668 if (status & MWL8K_A2H_INT_RX_READY) {
3669 status &= ~MWL8K_A2H_INT_RX_READY;
3670 tasklet_schedule(&priv->poll_rx_task);
3674 iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
3676 if (status & MWL8K_A2H_INT_OPC_DONE) {
3677 if (priv->hostcmd_wait != NULL)
3678 complete(priv->hostcmd_wait);
3681 if (status & MWL8K_A2H_INT_QUEUE_EMPTY) {
3682 if (!mutex_is_locked(&priv->fw_mutex) &&
3683 priv->radio_on && priv->pending_tx_pkts)
3684 mwl8k_tx_start(priv);
3690 static void mwl8k_tx_poll(unsigned long data)
3692 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
3693 struct mwl8k_priv *priv = hw->priv;
3699 spin_lock_bh(&priv->tx_lock);
3701 for (i = 0; i < MWL8K_TX_QUEUES; i++)
3702 limit -= mwl8k_txq_reclaim(hw, i, limit, 0);
3704 if (!priv->pending_tx_pkts && priv->tx_wait != NULL) {
3705 complete(priv->tx_wait);
3706 priv->tx_wait = NULL;
3709 spin_unlock_bh(&priv->tx_lock);
3712 writel(~MWL8K_A2H_INT_TX_DONE,
3713 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
3715 tasklet_schedule(&priv->poll_tx_task);
3719 static void mwl8k_rx_poll(unsigned long data)
3721 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
3722 struct mwl8k_priv *priv = hw->priv;
3726 limit -= rxq_process(hw, 0, limit);
3727 limit -= rxq_refill(hw, 0, limit);
3730 writel(~MWL8K_A2H_INT_RX_READY,
3731 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
3733 tasklet_schedule(&priv->poll_rx_task);
3739 * Core driver operations.
3741 static void mwl8k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
3743 struct mwl8k_priv *priv = hw->priv;
3744 int index = skb_get_queue_mapping(skb);
3746 if (!priv->radio_on) {
3747 wiphy_debug(hw->wiphy,
3748 "dropped TX frame since radio disabled\n");
3753 mwl8k_txq_xmit(hw, index, skb);
3756 static int mwl8k_start(struct ieee80211_hw *hw)
3758 struct mwl8k_priv *priv = hw->priv;
3761 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
3762 IRQF_SHARED, MWL8K_NAME, hw);
3764 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
3768 /* Enable TX reclaim and RX tasklets. */
3769 tasklet_enable(&priv->poll_tx_task);
3770 tasklet_enable(&priv->poll_rx_task);
3772 /* Enable interrupts */
3773 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
3775 rc = mwl8k_fw_lock(hw);
3777 rc = mwl8k_cmd_radio_enable(hw);
3781 rc = mwl8k_cmd_enable_sniffer(hw, 0);
3784 rc = mwl8k_cmd_set_pre_scan(hw);
3787 rc = mwl8k_cmd_set_post_scan(hw,
3788 "\x00\x00\x00\x00\x00\x00");
3792 rc = mwl8k_cmd_set_rateadapt_mode(hw, 0);
3795 rc = mwl8k_cmd_set_wmm_mode(hw, 0);
3797 mwl8k_fw_unlock(hw);
3801 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
3802 free_irq(priv->pdev->irq, hw);
3803 tasklet_disable(&priv->poll_tx_task);
3804 tasklet_disable(&priv->poll_rx_task);
3810 static void mwl8k_stop(struct ieee80211_hw *hw)
3812 struct mwl8k_priv *priv = hw->priv;
3815 mwl8k_cmd_radio_disable(hw);
3817 ieee80211_stop_queues(hw);
3819 /* Disable interrupts */
3820 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
3821 free_irq(priv->pdev->irq, hw);
3823 /* Stop finalize join worker */
3824 cancel_work_sync(&priv->finalize_join_worker);
3825 if (priv->beacon_skb != NULL)
3826 dev_kfree_skb(priv->beacon_skb);
3828 /* Stop TX reclaim and RX tasklets. */
3829 tasklet_disable(&priv->poll_tx_task);
3830 tasklet_disable(&priv->poll_rx_task);
3832 /* Return all skbs to mac80211 */
3833 for (i = 0; i < MWL8K_TX_QUEUES; i++)
3834 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
3837 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image);
3839 static int mwl8k_add_interface(struct ieee80211_hw *hw,
3840 struct ieee80211_vif *vif)
3842 struct mwl8k_priv *priv = hw->priv;
3843 struct mwl8k_vif *mwl8k_vif;
3844 u32 macids_supported;
3846 struct mwl8k_device_info *di;
3849 * Reject interface creation if sniffer mode is active, as
3850 * STA operation is mutually exclusive with hardware sniffer
3851 * mode. (Sniffer mode is only used on STA firmware.)
3853 if (priv->sniffer_enabled) {
3854 wiphy_info(hw->wiphy,
3855 "unable to create STA interface because sniffer mode is enabled\n");
3859 di = priv->device_info;
3860 switch (vif->type) {
3861 case NL80211_IFTYPE_AP:
3862 if (!priv->ap_fw && di->fw_image_ap) {
3863 /* we must load the ap fw to meet this request */
3864 if (!list_empty(&priv->vif_list))
3866 rc = mwl8k_reload_firmware(hw, di->fw_image_ap);
3870 macids_supported = priv->ap_macids_supported;
3872 case NL80211_IFTYPE_STATION:
3873 if (priv->ap_fw && di->fw_image_sta) {
3874 /* we must load the sta fw to meet this request */
3875 if (!list_empty(&priv->vif_list))
3877 rc = mwl8k_reload_firmware(hw, di->fw_image_sta);
3881 macids_supported = priv->sta_macids_supported;
3887 macid = ffs(macids_supported & ~priv->macids_used);
3891 /* Setup driver private area. */
3892 mwl8k_vif = MWL8K_VIF(vif);
3893 memset(mwl8k_vif, 0, sizeof(*mwl8k_vif));
3894 mwl8k_vif->vif = vif;
3895 mwl8k_vif->macid = macid;
3896 mwl8k_vif->seqno = 0;
3897 memcpy(mwl8k_vif->bssid, vif->addr, ETH_ALEN);
3898 mwl8k_vif->is_hw_crypto_enabled = false;
3900 /* Set the mac address. */
3901 mwl8k_cmd_set_mac_addr(hw, vif, vif->addr);
3904 mwl8k_cmd_set_new_stn_add_self(hw, vif);
3906 priv->macids_used |= 1 << mwl8k_vif->macid;
3907 list_add_tail(&mwl8k_vif->list, &priv->vif_list);
3912 static void mwl8k_remove_interface(struct ieee80211_hw *hw,
3913 struct ieee80211_vif *vif)
3915 struct mwl8k_priv *priv = hw->priv;
3916 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3919 mwl8k_cmd_set_new_stn_del(hw, vif, vif->addr);
3921 mwl8k_cmd_set_mac_addr(hw, vif, "\x00\x00\x00\x00\x00\x00");
3923 priv->macids_used &= ~(1 << mwl8k_vif->macid);
3924 list_del(&mwl8k_vif->list);
3927 static int mwl8k_config(struct ieee80211_hw *hw, u32 changed)
3929 struct ieee80211_conf *conf = &hw->conf;
3930 struct mwl8k_priv *priv = hw->priv;
3933 if (conf->flags & IEEE80211_CONF_IDLE) {
3934 mwl8k_cmd_radio_disable(hw);
3938 rc = mwl8k_fw_lock(hw);
3942 rc = mwl8k_cmd_radio_enable(hw);
3946 rc = mwl8k_cmd_set_rf_channel(hw, conf);
3950 if (conf->power_level > 18)
3951 conf->power_level = 18;
3954 rc = mwl8k_cmd_tx_power(hw, conf, conf->power_level);
3958 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_RX, 0x3);
3960 wiphy_warn(hw->wiphy, "failed to set # of RX antennas");
3961 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_TX, 0x7);
3963 wiphy_warn(hw->wiphy, "failed to set # of TX antennas");
3966 rc = mwl8k_cmd_rf_tx_power(hw, conf->power_level);
3969 rc = mwl8k_cmd_mimo_config(hw, 0x7, 0x7);
3973 mwl8k_fw_unlock(hw);
3979 mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3980 struct ieee80211_bss_conf *info, u32 changed)
3982 struct mwl8k_priv *priv = hw->priv;
3983 u32 ap_legacy_rates;
3984 u8 ap_mcs_rates[16];
3987 if (mwl8k_fw_lock(hw))
3991 * No need to capture a beacon if we're no longer associated.
3993 if ((changed & BSS_CHANGED_ASSOC) && !vif->bss_conf.assoc)
3994 priv->capture_beacon = false;
3997 * Get the AP's legacy and MCS rates.
3999 if (vif->bss_conf.assoc) {
4000 struct ieee80211_sta *ap;
4004 ap = ieee80211_find_sta(vif, vif->bss_conf.bssid);
4010 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ) {
4011 ap_legacy_rates = ap->supp_rates[IEEE80211_BAND_2GHZ];
4014 ap->supp_rates[IEEE80211_BAND_5GHZ] << 5;
4016 memcpy(ap_mcs_rates, ap->ht_cap.mcs.rx_mask, 16);
4021 if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc) {
4022 rc = mwl8k_cmd_set_rate(hw, vif, ap_legacy_rates, ap_mcs_rates);
4026 rc = mwl8k_cmd_use_fixed_rate_sta(hw);
4031 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
4032 rc = mwl8k_set_radio_preamble(hw,
4033 vif->bss_conf.use_short_preamble);
4038 if (changed & BSS_CHANGED_ERP_SLOT) {
4039 rc = mwl8k_cmd_set_slot(hw, vif->bss_conf.use_short_slot);
4044 if (vif->bss_conf.assoc &&
4045 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_ERP_CTS_PROT |
4047 rc = mwl8k_cmd_set_aid(hw, vif, ap_legacy_rates);
4052 if (vif->bss_conf.assoc &&
4053 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INT))) {
4055 * Finalize the join. Tell rx handler to process
4056 * next beacon from our BSSID.
4058 memcpy(priv->capture_bssid, vif->bss_conf.bssid, ETH_ALEN);
4059 priv->capture_beacon = true;
4063 mwl8k_fw_unlock(hw);
4067 mwl8k_bss_info_changed_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4068 struct ieee80211_bss_conf *info, u32 changed)
4072 if (mwl8k_fw_lock(hw))
4075 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
4076 rc = mwl8k_set_radio_preamble(hw,
4077 vif->bss_conf.use_short_preamble);
4082 if (changed & BSS_CHANGED_BASIC_RATES) {
4087 * Use lowest supported basic rate for multicasts
4088 * and management frames (such as probe responses --
4089 * beacons will always go out at 1 Mb/s).
4091 idx = ffs(vif->bss_conf.basic_rates);
4095 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ)
4096 rate = mwl8k_rates_24[idx].hw_value;
4098 rate = mwl8k_rates_50[idx].hw_value;
4100 mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate);
4103 if (changed & (BSS_CHANGED_BEACON_INT | BSS_CHANGED_BEACON)) {
4104 struct sk_buff *skb;
4106 skb = ieee80211_beacon_get(hw, vif);
4108 mwl8k_cmd_set_beacon(hw, vif, skb->data, skb->len);
4113 if (changed & BSS_CHANGED_BEACON_ENABLED)
4114 mwl8k_cmd_bss_start(hw, vif, info->enable_beacon);
4117 mwl8k_fw_unlock(hw);
4121 mwl8k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4122 struct ieee80211_bss_conf *info, u32 changed)
4124 struct mwl8k_priv *priv = hw->priv;
4127 mwl8k_bss_info_changed_sta(hw, vif, info, changed);
4129 mwl8k_bss_info_changed_ap(hw, vif, info, changed);
4132 static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw,
4133 struct netdev_hw_addr_list *mc_list)
4135 struct mwl8k_cmd_pkt *cmd;
4138 * Synthesize and return a command packet that programs the
4139 * hardware multicast address filter. At this point we don't
4140 * know whether FIF_ALLMULTI is being requested, but if it is,
4141 * we'll end up throwing this packet away and creating a new
4142 * one in mwl8k_configure_filter().
4144 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_list);
4146 return (unsigned long)cmd;
4150 mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw,
4151 unsigned int changed_flags,
4152 unsigned int *total_flags)
4154 struct mwl8k_priv *priv = hw->priv;
4157 * Hardware sniffer mode is mutually exclusive with STA
4158 * operation, so refuse to enable sniffer mode if a STA
4159 * interface is active.
4161 if (!list_empty(&priv->vif_list)) {
4162 if (net_ratelimit())
4163 wiphy_info(hw->wiphy,
4164 "not enabling sniffer mode because STA interface is active\n");
4168 if (!priv->sniffer_enabled) {
4169 if (mwl8k_cmd_enable_sniffer(hw, 1))
4171 priv->sniffer_enabled = true;
4174 *total_flags &= FIF_PROMISC_IN_BSS | FIF_ALLMULTI |
4175 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL |
4181 static struct mwl8k_vif *mwl8k_first_vif(struct mwl8k_priv *priv)
4183 if (!list_empty(&priv->vif_list))
4184 return list_entry(priv->vif_list.next, struct mwl8k_vif, list);
4189 static void mwl8k_configure_filter(struct ieee80211_hw *hw,
4190 unsigned int changed_flags,
4191 unsigned int *total_flags,
4194 struct mwl8k_priv *priv = hw->priv;
4195 struct mwl8k_cmd_pkt *cmd = (void *)(unsigned long)multicast;
4198 * AP firmware doesn't allow fine-grained control over
4199 * the receive filter.
4202 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
4208 * Enable hardware sniffer mode if FIF_CONTROL or
4209 * FIF_OTHER_BSS is requested.
4211 if (*total_flags & (FIF_CONTROL | FIF_OTHER_BSS) &&
4212 mwl8k_configure_filter_sniffer(hw, changed_flags, total_flags)) {
4217 /* Clear unsupported feature flags */
4218 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
4220 if (mwl8k_fw_lock(hw)) {
4225 if (priv->sniffer_enabled) {
4226 mwl8k_cmd_enable_sniffer(hw, 0);
4227 priv->sniffer_enabled = false;
4230 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
4231 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
4233 * Disable the BSS filter.
4235 mwl8k_cmd_set_pre_scan(hw);
4237 struct mwl8k_vif *mwl8k_vif;
4241 * Enable the BSS filter.
4243 * If there is an active STA interface, use that
4244 * interface's BSSID, otherwise use a dummy one
4245 * (where the OUI part needs to be nonzero for
4246 * the BSSID to be accepted by POST_SCAN).
4248 mwl8k_vif = mwl8k_first_vif(priv);
4249 if (mwl8k_vif != NULL)
4250 bssid = mwl8k_vif->vif->bss_conf.bssid;
4252 bssid = "\x01\x00\x00\x00\x00\x00";
4254 mwl8k_cmd_set_post_scan(hw, bssid);
4259 * If FIF_ALLMULTI is being requested, throw away the command
4260 * packet that ->prepare_multicast() built and replace it with
4261 * a command packet that enables reception of all multicast
4264 if (*total_flags & FIF_ALLMULTI) {
4266 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, NULL);
4270 mwl8k_post_cmd(hw, cmd);
4274 mwl8k_fw_unlock(hw);
4277 static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
4279 return mwl8k_cmd_set_rts_threshold(hw, value);
4282 static int mwl8k_sta_remove(struct ieee80211_hw *hw,
4283 struct ieee80211_vif *vif,
4284 struct ieee80211_sta *sta)
4286 struct mwl8k_priv *priv = hw->priv;
4289 return mwl8k_cmd_set_new_stn_del(hw, vif, sta->addr);
4291 return mwl8k_cmd_update_stadb_del(hw, vif, sta->addr);
4294 static int mwl8k_sta_add(struct ieee80211_hw *hw,
4295 struct ieee80211_vif *vif,
4296 struct ieee80211_sta *sta)
4298 struct mwl8k_priv *priv = hw->priv;
4301 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4302 struct ieee80211_key_conf *key;
4305 ret = mwl8k_cmd_update_stadb_add(hw, vif, sta);
4307 MWL8K_STA(sta)->peer_id = ret;
4312 ret = mwl8k_cmd_set_new_stn_add(hw, vif, sta);
4315 for (i = 0; i < NUM_WEP_KEYS; i++) {
4316 key = IEEE80211_KEY_CONF(mwl8k_vif->wep_key_conf[i].key);
4317 if (mwl8k_vif->wep_key_conf[i].enabled)
4318 mwl8k_set_key(hw, SET_KEY, vif, sta, key);
4323 static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue,
4324 const struct ieee80211_tx_queue_params *params)
4326 struct mwl8k_priv *priv = hw->priv;
4329 rc = mwl8k_fw_lock(hw);
4331 BUG_ON(queue > MWL8K_TX_QUEUES - 1);
4332 memcpy(&priv->wmm_params[queue], params, sizeof(*params));
4334 if (!priv->wmm_enabled)
4335 rc = mwl8k_cmd_set_wmm_mode(hw, 1);
4338 int q = MWL8K_TX_QUEUES - 1 - queue;
4339 rc = mwl8k_cmd_set_edca_params(hw, q,
4346 mwl8k_fw_unlock(hw);
4352 static int mwl8k_get_stats(struct ieee80211_hw *hw,
4353 struct ieee80211_low_level_stats *stats)
4355 return mwl8k_cmd_get_stat(hw, stats);
4358 static int mwl8k_get_survey(struct ieee80211_hw *hw, int idx,
4359 struct survey_info *survey)
4361 struct mwl8k_priv *priv = hw->priv;
4362 struct ieee80211_conf *conf = &hw->conf;
4367 survey->channel = conf->channel;
4368 survey->filled = SURVEY_INFO_NOISE_DBM;
4369 survey->noise = priv->noise;
4375 mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4376 enum ieee80211_ampdu_mlme_action action,
4377 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
4381 case IEEE80211_AMPDU_RX_START:
4382 case IEEE80211_AMPDU_RX_STOP:
4383 if (!(hw->flags & IEEE80211_HW_AMPDU_AGGREGATION))
4391 static const struct ieee80211_ops mwl8k_ops = {
4393 .start = mwl8k_start,
4395 .add_interface = mwl8k_add_interface,
4396 .remove_interface = mwl8k_remove_interface,
4397 .config = mwl8k_config,
4398 .bss_info_changed = mwl8k_bss_info_changed,
4399 .prepare_multicast = mwl8k_prepare_multicast,
4400 .configure_filter = mwl8k_configure_filter,
4401 .set_key = mwl8k_set_key,
4402 .set_rts_threshold = mwl8k_set_rts_threshold,
4403 .sta_add = mwl8k_sta_add,
4404 .sta_remove = mwl8k_sta_remove,
4405 .conf_tx = mwl8k_conf_tx,
4406 .get_stats = mwl8k_get_stats,
4407 .get_survey = mwl8k_get_survey,
4408 .ampdu_action = mwl8k_ampdu_action,
4411 static void mwl8k_finalize_join_worker(struct work_struct *work)
4413 struct mwl8k_priv *priv =
4414 container_of(work, struct mwl8k_priv, finalize_join_worker);
4415 struct sk_buff *skb = priv->beacon_skb;
4416 struct ieee80211_mgmt *mgmt = (void *)skb->data;
4417 int len = skb->len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
4418 const u8 *tim = cfg80211_find_ie(WLAN_EID_TIM,
4419 mgmt->u.beacon.variable, len);
4420 int dtim_period = 1;
4422 if (tim && tim[1] >= 2)
4423 dtim_period = tim[3];
4425 mwl8k_cmd_finalize_join(priv->hw, skb->data, skb->len, dtim_period);
4428 priv->beacon_skb = NULL;
4437 #define MWL8K_8366_AP_FW_API 1
4438 #define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw"
4439 #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
4441 static struct mwl8k_device_info mwl8k_info_tbl[] __devinitdata = {
4443 .part_name = "88w8363",
4444 .helper_image = "mwl8k/helper_8363.fw",
4445 .fw_image_sta = "mwl8k/fmimage_8363.fw",
4448 .part_name = "88w8687",
4449 .helper_image = "mwl8k/helper_8687.fw",
4450 .fw_image_sta = "mwl8k/fmimage_8687.fw",
4453 .part_name = "88w8366",
4454 .helper_image = "mwl8k/helper_8366.fw",
4455 .fw_image_sta = "mwl8k/fmimage_8366.fw",
4456 .fw_image_ap = MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API),
4457 .fw_api_ap = MWL8K_8366_AP_FW_API,
4458 .ap_rxd_ops = &rxd_8366_ap_ops,
4462 MODULE_FIRMWARE("mwl8k/helper_8363.fw");
4463 MODULE_FIRMWARE("mwl8k/fmimage_8363.fw");
4464 MODULE_FIRMWARE("mwl8k/helper_8687.fw");
4465 MODULE_FIRMWARE("mwl8k/fmimage_8687.fw");
4466 MODULE_FIRMWARE("mwl8k/helper_8366.fw");
4467 MODULE_FIRMWARE("mwl8k/fmimage_8366.fw");
4468 MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API));
4470 static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = {
4471 { PCI_VDEVICE(MARVELL, 0x2a0a), .driver_data = MWL8363, },
4472 { PCI_VDEVICE(MARVELL, 0x2a0c), .driver_data = MWL8363, },
4473 { PCI_VDEVICE(MARVELL, 0x2a24), .driver_data = MWL8363, },
4474 { PCI_VDEVICE(MARVELL, 0x2a2b), .driver_data = MWL8687, },
4475 { PCI_VDEVICE(MARVELL, 0x2a30), .driver_data = MWL8687, },
4476 { PCI_VDEVICE(MARVELL, 0x2a40), .driver_data = MWL8366, },
4477 { PCI_VDEVICE(MARVELL, 0x2a43), .driver_data = MWL8366, },
4480 MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table);
4482 static int mwl8k_request_alt_fw(struct mwl8k_priv *priv)
4485 printk(KERN_ERR "%s: Error requesting preferred fw %s.\n"
4486 "Trying alternative firmware %s\n", pci_name(priv->pdev),
4487 priv->fw_pref, priv->fw_alt);
4488 rc = mwl8k_request_fw(priv, priv->fw_alt, &priv->fw_ucode, true);
4490 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
4491 pci_name(priv->pdev), priv->fw_alt);
4497 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv);
4498 static void mwl8k_fw_state_machine(const struct firmware *fw, void *context)
4500 struct mwl8k_priv *priv = context;
4501 struct mwl8k_device_info *di = priv->device_info;
4504 switch (priv->fw_state) {
4507 printk(KERN_ERR "%s: Error requesting helper fw %s\n",
4508 pci_name(priv->pdev), di->helper_image);
4511 priv->fw_helper = fw;
4512 rc = mwl8k_request_fw(priv, priv->fw_pref, &priv->fw_ucode,
4514 if (rc && priv->fw_alt) {
4515 rc = mwl8k_request_alt_fw(priv);
4518 priv->fw_state = FW_STATE_LOADING_ALT;
4522 priv->fw_state = FW_STATE_LOADING_PREF;
4525 case FW_STATE_LOADING_PREF:
4528 rc = mwl8k_request_alt_fw(priv);
4531 priv->fw_state = FW_STATE_LOADING_ALT;
4535 priv->fw_ucode = fw;
4536 rc = mwl8k_firmware_load_success(priv);
4540 complete(&priv->firmware_loading_complete);
4544 case FW_STATE_LOADING_ALT:
4546 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
4547 pci_name(priv->pdev), di->helper_image);
4550 priv->fw_ucode = fw;
4551 rc = mwl8k_firmware_load_success(priv);
4555 complete(&priv->firmware_loading_complete);
4559 printk(KERN_ERR "%s: Unexpected firmware loading state: %d\n",
4560 MWL8K_NAME, priv->fw_state);
4567 priv->fw_state = FW_STATE_ERROR;
4568 complete(&priv->firmware_loading_complete);
4569 device_release_driver(&priv->pdev->dev);
4570 mwl8k_release_firmware(priv);
4573 static int mwl8k_init_firmware(struct ieee80211_hw *hw, char *fw_image,
4576 struct mwl8k_priv *priv = hw->priv;
4579 /* Reset firmware and hardware */
4580 mwl8k_hw_reset(priv);
4582 /* Ask userland hotplug daemon for the device firmware */
4583 rc = mwl8k_request_firmware(priv, fw_image, nowait);
4585 wiphy_err(hw->wiphy, "Firmware files not found\n");
4592 /* Load firmware into hardware */
4593 rc = mwl8k_load_firmware(hw);
4595 wiphy_err(hw->wiphy, "Cannot start firmware\n");
4597 /* Reclaim memory once firmware is successfully loaded */
4598 mwl8k_release_firmware(priv);
4603 /* initialize hw after successfully loading a firmware image */
4604 static int mwl8k_probe_hw(struct ieee80211_hw *hw)
4606 struct mwl8k_priv *priv = hw->priv;
4611 priv->rxd_ops = priv->device_info->ap_rxd_ops;
4612 if (priv->rxd_ops == NULL) {
4613 wiphy_err(hw->wiphy,
4614 "Driver does not have AP firmware image support for this hardware\n");
4615 goto err_stop_firmware;
4618 priv->rxd_ops = &rxd_sta_ops;
4621 priv->sniffer_enabled = false;
4622 priv->wmm_enabled = false;
4623 priv->pending_tx_pkts = 0;
4625 rc = mwl8k_rxq_init(hw, 0);
4627 goto err_stop_firmware;
4628 rxq_refill(hw, 0, INT_MAX);
4630 for (i = 0; i < MWL8K_TX_QUEUES; i++) {
4631 rc = mwl8k_txq_init(hw, i);
4633 goto err_free_queues;
4636 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4637 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4638 iowrite32(MWL8K_A2H_INT_TX_DONE | MWL8K_A2H_INT_RX_READY,
4639 priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL);
4640 iowrite32(0xffffffff, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
4642 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
4643 IRQF_SHARED, MWL8K_NAME, hw);
4645 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
4646 goto err_free_queues;
4650 * Temporarily enable interrupts. Initial firmware host
4651 * commands use interrupts and avoid polling. Disable
4652 * interrupts when done.
4654 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4656 /* Get config data, mac addrs etc */
4658 rc = mwl8k_cmd_get_hw_spec_ap(hw);
4660 rc = mwl8k_cmd_set_hw_spec(hw);
4662 rc = mwl8k_cmd_get_hw_spec_sta(hw);
4665 wiphy_err(hw->wiphy, "Cannot initialise firmware\n");
4669 /* Turn radio off */
4670 rc = mwl8k_cmd_radio_disable(hw);
4672 wiphy_err(hw->wiphy, "Cannot disable\n");
4676 /* Clear MAC address */
4677 rc = mwl8k_cmd_set_mac_addr(hw, NULL, "\x00\x00\x00\x00\x00\x00");
4679 wiphy_err(hw->wiphy, "Cannot clear MAC address\n");
4683 /* Disable interrupts */
4684 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4685 free_irq(priv->pdev->irq, hw);
4687 wiphy_info(hw->wiphy, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
4688 priv->device_info->part_name,
4689 priv->hw_rev, hw->wiphy->perm_addr,
4690 priv->ap_fw ? "AP" : "STA",
4691 (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff,
4692 (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff);
4697 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4698 free_irq(priv->pdev->irq, hw);
4701 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4702 mwl8k_txq_deinit(hw, i);
4703 mwl8k_rxq_deinit(hw, 0);
4706 mwl8k_hw_reset(priv);
4712 * invoke mwl8k_reload_firmware to change the firmware image after the device
4713 * has already been registered
4715 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image)
4718 struct mwl8k_priv *priv = hw->priv;
4721 mwl8k_rxq_deinit(hw, 0);
4723 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4724 mwl8k_txq_deinit(hw, i);
4726 rc = mwl8k_init_firmware(hw, fw_image, false);
4730 rc = mwl8k_probe_hw(hw);
4734 rc = mwl8k_start(hw);
4738 rc = mwl8k_config(hw, ~0);
4742 for (i = 0; i < MWL8K_TX_QUEUES; i++) {
4743 rc = mwl8k_conf_tx(hw, i, &priv->wmm_params[i]);
4751 printk(KERN_WARNING "mwl8k: Failed to reload firmware image.\n");
4755 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv)
4757 struct ieee80211_hw *hw = priv->hw;
4760 rc = mwl8k_load_firmware(hw);
4761 mwl8k_release_firmware(priv);
4763 wiphy_err(hw->wiphy, "Cannot start firmware\n");
4768 * Extra headroom is the size of the required DMA header
4769 * minus the size of the smallest 802.11 frame (CTS frame).
4771 hw->extra_tx_headroom =
4772 sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts);
4774 hw->channel_change_time = 10;
4776 hw->queues = MWL8K_TX_QUEUES;
4778 /* Set rssi values to dBm */
4779 hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_HAS_RATE_CONTROL;
4780 hw->vif_data_size = sizeof(struct mwl8k_vif);
4781 hw->sta_data_size = sizeof(struct mwl8k_sta);
4783 priv->macids_used = 0;
4784 INIT_LIST_HEAD(&priv->vif_list);
4786 /* Set default radio state and preamble */
4788 priv->radio_short_preamble = 0;
4790 /* Finalize join worker */
4791 INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker);
4793 /* TX reclaim and RX tasklets. */
4794 tasklet_init(&priv->poll_tx_task, mwl8k_tx_poll, (unsigned long)hw);
4795 tasklet_disable(&priv->poll_tx_task);
4796 tasklet_init(&priv->poll_rx_task, mwl8k_rx_poll, (unsigned long)hw);
4797 tasklet_disable(&priv->poll_rx_task);
4799 /* Power management cookie */
4800 priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma);
4801 if (priv->cookie == NULL)
4804 mutex_init(&priv->fw_mutex);
4805 priv->fw_mutex_owner = NULL;
4806 priv->fw_mutex_depth = 0;
4807 priv->hostcmd_wait = NULL;
4809 spin_lock_init(&priv->tx_lock);
4811 priv->tx_wait = NULL;
4813 rc = mwl8k_probe_hw(hw);
4815 goto err_free_cookie;
4817 hw->wiphy->interface_modes = 0;
4818 if (priv->ap_macids_supported || priv->device_info->fw_image_ap)
4819 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP);
4820 if (priv->sta_macids_supported || priv->device_info->fw_image_sta)
4821 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION);
4823 rc = ieee80211_register_hw(hw);
4825 wiphy_err(hw->wiphy, "Cannot register device\n");
4826 goto err_unprobe_hw;
4832 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4833 mwl8k_txq_deinit(hw, i);
4834 mwl8k_rxq_deinit(hw, 0);
4837 if (priv->cookie != NULL)
4838 pci_free_consistent(priv->pdev, 4,
4839 priv->cookie, priv->cookie_dma);
4843 static int __devinit mwl8k_probe(struct pci_dev *pdev,
4844 const struct pci_device_id *id)
4846 static int printed_version;
4847 struct ieee80211_hw *hw;
4848 struct mwl8k_priv *priv;
4849 struct mwl8k_device_info *di;
4852 if (!printed_version) {
4853 printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION);
4854 printed_version = 1;
4858 rc = pci_enable_device(pdev);
4860 printk(KERN_ERR "%s: Cannot enable new PCI device\n",
4865 rc = pci_request_regions(pdev, MWL8K_NAME);
4867 printk(KERN_ERR "%s: Cannot obtain PCI resources\n",
4869 goto err_disable_device;
4872 pci_set_master(pdev);
4875 hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops);
4877 printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME);
4882 SET_IEEE80211_DEV(hw, &pdev->dev);
4883 pci_set_drvdata(pdev, hw);
4888 priv->device_info = &mwl8k_info_tbl[id->driver_data];
4891 priv->sram = pci_iomap(pdev, 0, 0x10000);
4892 if (priv->sram == NULL) {
4893 wiphy_err(hw->wiphy, "Cannot map device SRAM\n");
4898 * If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
4899 * If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
4901 priv->regs = pci_iomap(pdev, 1, 0x10000);
4902 if (priv->regs == NULL) {
4903 priv->regs = pci_iomap(pdev, 2, 0x10000);
4904 if (priv->regs == NULL) {
4905 wiphy_err(hw->wiphy, "Cannot map device registers\n");
4911 * Choose the initial fw image depending on user input. If a second
4912 * image is available, make it the alternative image that will be
4913 * loaded if the first one fails.
4915 init_completion(&priv->firmware_loading_complete);
4916 di = priv->device_info;
4917 if (ap_mode_default && di->fw_image_ap) {
4918 priv->fw_pref = di->fw_image_ap;
4919 priv->fw_alt = di->fw_image_sta;
4920 } else if (!ap_mode_default && di->fw_image_sta) {
4921 priv->fw_pref = di->fw_image_sta;
4922 priv->fw_alt = di->fw_image_ap;
4923 } else if (ap_mode_default && !di->fw_image_ap && di->fw_image_sta) {
4924 printk(KERN_WARNING "AP fw is unavailable. Using STA fw.");
4925 priv->fw_pref = di->fw_image_sta;
4926 } else if (!ap_mode_default && !di->fw_image_sta && di->fw_image_ap) {
4927 printk(KERN_WARNING "STA fw is unavailable. Using AP fw.");
4928 priv->fw_pref = di->fw_image_ap;
4930 rc = mwl8k_init_firmware(hw, priv->fw_pref, true);
4932 goto err_stop_firmware;
4936 mwl8k_hw_reset(priv);
4939 if (priv->regs != NULL)
4940 pci_iounmap(pdev, priv->regs);
4942 if (priv->sram != NULL)
4943 pci_iounmap(pdev, priv->sram);
4945 pci_set_drvdata(pdev, NULL);
4946 ieee80211_free_hw(hw);
4949 pci_release_regions(pdev);
4952 pci_disable_device(pdev);
4957 static void __devexit mwl8k_shutdown(struct pci_dev *pdev)
4959 printk(KERN_ERR "===>%s(%u)\n", __func__, __LINE__);
4962 static void __devexit mwl8k_remove(struct pci_dev *pdev)
4964 struct ieee80211_hw *hw = pci_get_drvdata(pdev);
4965 struct mwl8k_priv *priv;
4972 wait_for_completion(&priv->firmware_loading_complete);
4974 if (priv->fw_state == FW_STATE_ERROR) {
4975 mwl8k_hw_reset(priv);
4979 ieee80211_stop_queues(hw);
4981 ieee80211_unregister_hw(hw);
4983 /* Remove TX reclaim and RX tasklets. */
4984 tasklet_kill(&priv->poll_tx_task);
4985 tasklet_kill(&priv->poll_rx_task);
4988 mwl8k_hw_reset(priv);
4990 /* Return all skbs to mac80211 */
4991 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4992 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
4994 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4995 mwl8k_txq_deinit(hw, i);
4997 mwl8k_rxq_deinit(hw, 0);
4999 pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma);
5002 pci_iounmap(pdev, priv->regs);
5003 pci_iounmap(pdev, priv->sram);
5004 pci_set_drvdata(pdev, NULL);
5005 ieee80211_free_hw(hw);
5006 pci_release_regions(pdev);
5007 pci_disable_device(pdev);
5010 static struct pci_driver mwl8k_driver = {
5012 .id_table = mwl8k_pci_id_table,
5013 .probe = mwl8k_probe,
5014 .remove = __devexit_p(mwl8k_remove),
5015 .shutdown = __devexit_p(mwl8k_shutdown),
5018 static int __init mwl8k_init(void)
5020 return pci_register_driver(&mwl8k_driver);
5023 static void __exit mwl8k_exit(void)
5025 pci_unregister_driver(&mwl8k_driver);
5028 module_init(mwl8k_init);
5029 module_exit(mwl8k_exit);
5031 MODULE_DESCRIPTION(MWL8K_DESC);
5032 MODULE_VERSION(MWL8K_VERSION);
5033 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
5034 MODULE_LICENSE("GPL");