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 = kmalloc(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);
1065 memset(rxq->buf, 0, MWL8K_RX_DESCS * sizeof(*rxq->buf));
1067 for (i = 0; i < MWL8K_RX_DESCS; i++) {
1071 dma_addr_t next_dma_addr;
1073 desc_size = priv->rxd_ops->rxd_size;
1074 rxd = rxq->rxd + (i * priv->rxd_ops->rxd_size);
1077 if (nexti == MWL8K_RX_DESCS)
1079 next_dma_addr = rxq->rxd_dma + (nexti * desc_size);
1081 priv->rxd_ops->rxd_init(rxd, next_dma_addr);
1087 static int rxq_refill(struct ieee80211_hw *hw, int index, int limit)
1089 struct mwl8k_priv *priv = hw->priv;
1090 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1094 while (rxq->rxd_count < MWL8K_RX_DESCS && limit--) {
1095 struct sk_buff *skb;
1100 skb = dev_alloc_skb(MWL8K_RX_MAXSZ);
1104 addr = pci_map_single(priv->pdev, skb->data,
1105 MWL8K_RX_MAXSZ, DMA_FROM_DEVICE);
1109 if (rxq->tail == MWL8K_RX_DESCS)
1111 rxq->buf[rx].skb = skb;
1112 dma_unmap_addr_set(&rxq->buf[rx], dma, addr);
1114 rxd = rxq->rxd + (rx * priv->rxd_ops->rxd_size);
1115 priv->rxd_ops->rxd_refill(rxd, addr, MWL8K_RX_MAXSZ);
1123 /* Must be called only when the card's reception is completely halted */
1124 static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index)
1126 struct mwl8k_priv *priv = hw->priv;
1127 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1130 for (i = 0; i < MWL8K_RX_DESCS; i++) {
1131 if (rxq->buf[i].skb != NULL) {
1132 pci_unmap_single(priv->pdev,
1133 dma_unmap_addr(&rxq->buf[i], dma),
1134 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1135 dma_unmap_addr_set(&rxq->buf[i], dma, 0);
1137 kfree_skb(rxq->buf[i].skb);
1138 rxq->buf[i].skb = NULL;
1145 pci_free_consistent(priv->pdev,
1146 MWL8K_RX_DESCS * priv->rxd_ops->rxd_size,
1147 rxq->rxd, rxq->rxd_dma);
1153 * Scan a list of BSSIDs to process for finalize join.
1154 * Allows for extension to process multiple BSSIDs.
1157 mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh)
1159 return priv->capture_beacon &&
1160 ieee80211_is_beacon(wh->frame_control) &&
1161 !compare_ether_addr(wh->addr3, priv->capture_bssid);
1164 static inline void mwl8k_save_beacon(struct ieee80211_hw *hw,
1165 struct sk_buff *skb)
1167 struct mwl8k_priv *priv = hw->priv;
1169 priv->capture_beacon = false;
1170 memset(priv->capture_bssid, 0, ETH_ALEN);
1173 * Use GFP_ATOMIC as rxq_process is called from
1174 * the primary interrupt handler, memory allocation call
1177 priv->beacon_skb = skb_copy(skb, GFP_ATOMIC);
1178 if (priv->beacon_skb != NULL)
1179 ieee80211_queue_work(hw, &priv->finalize_join_worker);
1182 static inline struct mwl8k_vif *mwl8k_find_vif_bss(struct list_head *vif_list,
1185 struct mwl8k_vif *mwl8k_vif;
1187 list_for_each_entry(mwl8k_vif,
1189 if (memcmp(bssid, mwl8k_vif->bssid,
1197 static int rxq_process(struct ieee80211_hw *hw, int index, int limit)
1199 struct mwl8k_priv *priv = hw->priv;
1200 struct mwl8k_vif *mwl8k_vif = NULL;
1201 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1205 while (rxq->rxd_count && limit--) {
1206 struct sk_buff *skb;
1209 struct ieee80211_rx_status status;
1210 struct ieee80211_hdr *wh;
1213 skb = rxq->buf[rxq->head].skb;
1217 rxd = rxq->rxd + (rxq->head * priv->rxd_ops->rxd_size);
1219 pkt_len = priv->rxd_ops->rxd_process(rxd, &status, &qos,
1224 rxq->buf[rxq->head].skb = NULL;
1226 pci_unmap_single(priv->pdev,
1227 dma_unmap_addr(&rxq->buf[rxq->head], dma),
1228 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1229 dma_unmap_addr_set(&rxq->buf[rxq->head], dma, 0);
1232 if (rxq->head == MWL8K_RX_DESCS)
1237 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1240 * Check for a pending join operation. Save a
1241 * copy of the beacon and schedule a tasklet to
1242 * send a FINALIZE_JOIN command to the firmware.
1244 if (mwl8k_capture_bssid(priv, (void *)skb->data))
1245 mwl8k_save_beacon(hw, skb);
1247 if (ieee80211_has_protected(wh->frame_control)) {
1249 /* Check if hw crypto has been enabled for
1250 * this bss. If yes, set the status flags
1253 mwl8k_vif = mwl8k_find_vif_bss(&priv->vif_list,
1256 if (mwl8k_vif != NULL &&
1257 mwl8k_vif->is_hw_crypto_enabled == true) {
1259 * When MMIC ERROR is encountered
1260 * by the firmware, payload is
1261 * dropped and only 32 bytes of
1262 * mwl8k Firmware header is sent
1265 * We need to add four bytes of
1266 * key information. In it
1267 * MAC80211 expects keyidx set to
1268 * 0 for triggering Counter
1269 * Measure of MMIC failure.
1271 if (status.flag & RX_FLAG_MMIC_ERROR) {
1272 struct mwl8k_dma_data *tr;
1273 tr = (struct mwl8k_dma_data *)skb->data;
1274 memset((void *)&(tr->data), 0, 4);
1278 if (!ieee80211_is_auth(wh->frame_control))
1279 status.flag |= RX_FLAG_IV_STRIPPED |
1281 RX_FLAG_MMIC_STRIPPED;
1285 skb_put(skb, pkt_len);
1286 mwl8k_remove_dma_header(skb, qos);
1287 memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
1288 ieee80211_rx_irqsafe(hw, skb);
1298 * Packet transmission.
1301 #define MWL8K_TXD_STATUS_OK 0x00000001
1302 #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002
1303 #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004
1304 #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008
1305 #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000
1307 #define MWL8K_QOS_QLEN_UNSPEC 0xff00
1308 #define MWL8K_QOS_ACK_POLICY_MASK 0x0060
1309 #define MWL8K_QOS_ACK_POLICY_NORMAL 0x0000
1310 #define MWL8K_QOS_ACK_POLICY_BLOCKACK 0x0060
1311 #define MWL8K_QOS_EOSP 0x0010
1313 struct mwl8k_tx_desc {
1318 __le32 pkt_phys_addr;
1320 __u8 dest_MAC_addr[ETH_ALEN];
1321 __le32 next_txd_phys_addr;
1328 #define MWL8K_TX_DESCS 128
1330 static int mwl8k_txq_init(struct ieee80211_hw *hw, int index)
1332 struct mwl8k_priv *priv = hw->priv;
1333 struct mwl8k_tx_queue *txq = priv->txq + index;
1341 size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc);
1343 txq->txd = pci_alloc_consistent(priv->pdev, size, &txq->txd_dma);
1344 if (txq->txd == NULL) {
1345 wiphy_err(hw->wiphy, "failed to alloc TX descriptors\n");
1348 memset(txq->txd, 0, size);
1350 txq->skb = kmalloc(MWL8K_TX_DESCS * sizeof(*txq->skb), GFP_KERNEL);
1351 if (txq->skb == NULL) {
1352 wiphy_err(hw->wiphy, "failed to alloc TX skbuff list\n");
1353 pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma);
1356 memset(txq->skb, 0, MWL8K_TX_DESCS * sizeof(*txq->skb));
1358 for (i = 0; i < MWL8K_TX_DESCS; i++) {
1359 struct mwl8k_tx_desc *tx_desc;
1362 tx_desc = txq->txd + i;
1363 nexti = (i + 1) % MWL8K_TX_DESCS;
1365 tx_desc->status = 0;
1366 tx_desc->next_txd_phys_addr =
1367 cpu_to_le32(txq->txd_dma + nexti * sizeof(*tx_desc));
1373 static inline void mwl8k_tx_start(struct mwl8k_priv *priv)
1375 iowrite32(MWL8K_H2A_INT_PPA_READY,
1376 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1377 iowrite32(MWL8K_H2A_INT_DUMMY,
1378 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1379 ioread32(priv->regs + MWL8K_HIU_INT_CODE);
1382 static void mwl8k_dump_tx_rings(struct ieee80211_hw *hw)
1384 struct mwl8k_priv *priv = hw->priv;
1387 for (i = 0; i < MWL8K_TX_QUEUES; i++) {
1388 struct mwl8k_tx_queue *txq = priv->txq + i;
1394 for (desc = 0; desc < MWL8K_TX_DESCS; desc++) {
1395 struct mwl8k_tx_desc *tx_desc = txq->txd + desc;
1398 status = le32_to_cpu(tx_desc->status);
1399 if (status & MWL8K_TXD_STATUS_FW_OWNED)
1404 if (tx_desc->pkt_len == 0)
1408 wiphy_err(hw->wiphy,
1409 "txq[%d] len=%d head=%d tail=%d "
1410 "fw_owned=%d drv_owned=%d unused=%d\n",
1412 txq->len, txq->head, txq->tail,
1413 fw_owned, drv_owned, unused);
1418 * Must be called with priv->fw_mutex held and tx queues stopped.
1420 #define MWL8K_TX_WAIT_TIMEOUT_MS 5000
1422 static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw)
1424 struct mwl8k_priv *priv = hw->priv;
1425 DECLARE_COMPLETION_ONSTACK(tx_wait);
1432 * The TX queues are stopped at this point, so this test
1433 * doesn't need to take ->tx_lock.
1435 if (!priv->pending_tx_pkts)
1441 spin_lock_bh(&priv->tx_lock);
1442 priv->tx_wait = &tx_wait;
1445 unsigned long timeout;
1447 oldcount = priv->pending_tx_pkts;
1449 spin_unlock_bh(&priv->tx_lock);
1450 timeout = wait_for_completion_timeout(&tx_wait,
1451 msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS));
1452 spin_lock_bh(&priv->tx_lock);
1455 WARN_ON(priv->pending_tx_pkts);
1457 wiphy_notice(hw->wiphy, "tx rings drained\n");
1462 if (priv->pending_tx_pkts < oldcount) {
1463 wiphy_notice(hw->wiphy,
1464 "waiting for tx rings to drain (%d -> %d pkts)\n",
1465 oldcount, priv->pending_tx_pkts);
1470 priv->tx_wait = NULL;
1472 wiphy_err(hw->wiphy, "tx rings stuck for %d ms\n",
1473 MWL8K_TX_WAIT_TIMEOUT_MS);
1474 mwl8k_dump_tx_rings(hw);
1478 spin_unlock_bh(&priv->tx_lock);
1483 #define MWL8K_TXD_SUCCESS(status) \
1484 ((status) & (MWL8K_TXD_STATUS_OK | \
1485 MWL8K_TXD_STATUS_OK_RETRY | \
1486 MWL8K_TXD_STATUS_OK_MORE_RETRY))
1489 mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force)
1491 struct mwl8k_priv *priv = hw->priv;
1492 struct mwl8k_tx_queue *txq = priv->txq + index;
1496 while (txq->len > 0 && limit--) {
1498 struct mwl8k_tx_desc *tx_desc;
1501 struct sk_buff *skb;
1502 struct ieee80211_tx_info *info;
1506 tx_desc = txq->txd + tx;
1508 status = le32_to_cpu(tx_desc->status);
1510 if (status & MWL8K_TXD_STATUS_FW_OWNED) {
1514 ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED);
1517 txq->head = (tx + 1) % MWL8K_TX_DESCS;
1518 BUG_ON(txq->len == 0);
1520 priv->pending_tx_pkts--;
1522 addr = le32_to_cpu(tx_desc->pkt_phys_addr);
1523 size = le16_to_cpu(tx_desc->pkt_len);
1525 txq->skb[tx] = NULL;
1527 BUG_ON(skb == NULL);
1528 pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE);
1530 mwl8k_remove_dma_header(skb, tx_desc->qos_control);
1532 /* Mark descriptor as unused */
1533 tx_desc->pkt_phys_addr = 0;
1534 tx_desc->pkt_len = 0;
1536 info = IEEE80211_SKB_CB(skb);
1537 ieee80211_tx_info_clear_status(info);
1539 /* Rate control is happening in the firmware.
1540 * Ensure no tx rate is being reported.
1542 info->status.rates[0].idx = -1;
1543 info->status.rates[0].count = 1;
1545 if (MWL8K_TXD_SUCCESS(status))
1546 info->flags |= IEEE80211_TX_STAT_ACK;
1548 ieee80211_tx_status_irqsafe(hw, skb);
1553 if (processed && priv->radio_on && !mutex_is_locked(&priv->fw_mutex))
1554 ieee80211_wake_queue(hw, index);
1559 /* must be called only when the card's transmit is completely halted */
1560 static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index)
1562 struct mwl8k_priv *priv = hw->priv;
1563 struct mwl8k_tx_queue *txq = priv->txq + index;
1565 mwl8k_txq_reclaim(hw, index, INT_MAX, 1);
1570 pci_free_consistent(priv->pdev,
1571 MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc),
1572 txq->txd, txq->txd_dma);
1577 mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb)
1579 struct mwl8k_priv *priv = hw->priv;
1580 struct ieee80211_tx_info *tx_info;
1581 struct mwl8k_vif *mwl8k_vif;
1582 struct ieee80211_hdr *wh;
1583 struct mwl8k_tx_queue *txq;
1584 struct mwl8k_tx_desc *tx;
1590 wh = (struct ieee80211_hdr *)skb->data;
1591 if (ieee80211_is_data_qos(wh->frame_control))
1592 qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh)));
1597 mwl8k_encapsulate_tx_frame(skb);
1599 mwl8k_add_dma_header(skb, 0);
1601 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1603 tx_info = IEEE80211_SKB_CB(skb);
1604 mwl8k_vif = MWL8K_VIF(tx_info->control.vif);
1606 if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
1607 wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
1608 wh->seq_ctrl |= cpu_to_le16(mwl8k_vif->seqno);
1609 mwl8k_vif->seqno += 0x10;
1612 /* Setup firmware control bit fields for each frame type. */
1615 if (ieee80211_is_mgmt(wh->frame_control) ||
1616 ieee80211_is_ctl(wh->frame_control)) {
1618 qos |= MWL8K_QOS_QLEN_UNSPEC | MWL8K_QOS_EOSP;
1619 } else if (ieee80211_is_data(wh->frame_control)) {
1621 if (is_multicast_ether_addr(wh->addr1))
1622 txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX;
1624 qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
1625 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
1626 qos |= MWL8K_QOS_ACK_POLICY_BLOCKACK;
1628 qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
1631 dma = pci_map_single(priv->pdev, skb->data,
1632 skb->len, PCI_DMA_TODEVICE);
1634 if (pci_dma_mapping_error(priv->pdev, dma)) {
1635 wiphy_debug(hw->wiphy,
1636 "failed to dma map skb, dropping TX frame.\n");
1641 spin_lock_bh(&priv->tx_lock);
1643 txq = priv->txq + index;
1645 BUG_ON(txq->skb[txq->tail] != NULL);
1646 txq->skb[txq->tail] = skb;
1648 tx = txq->txd + txq->tail;
1649 tx->data_rate = txdatarate;
1650 tx->tx_priority = index;
1651 tx->qos_control = cpu_to_le16(qos);
1652 tx->pkt_phys_addr = cpu_to_le32(dma);
1653 tx->pkt_len = cpu_to_le16(skb->len);
1655 if (!priv->ap_fw && tx_info->control.sta != NULL)
1656 tx->peer_id = MWL8K_STA(tx_info->control.sta)->peer_id;
1660 tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus);
1663 priv->pending_tx_pkts++;
1666 if (txq->tail == MWL8K_TX_DESCS)
1669 if (txq->head == txq->tail)
1670 ieee80211_stop_queue(hw, index);
1672 mwl8k_tx_start(priv);
1674 spin_unlock_bh(&priv->tx_lock);
1681 * We have the following requirements for issuing firmware commands:
1682 * - Some commands require that the packet transmit path is idle when
1683 * the command is issued. (For simplicity, we'll just quiesce the
1684 * transmit path for every command.)
1685 * - There are certain sequences of commands that need to be issued to
1686 * the hardware sequentially, with no other intervening commands.
1688 * This leads to an implementation of a "firmware lock" as a mutex that
1689 * can be taken recursively, and which is taken by both the low-level
1690 * command submission function (mwl8k_post_cmd) as well as any users of
1691 * that function that require issuing of an atomic sequence of commands,
1692 * and quiesces the transmit path whenever it's taken.
1694 static int mwl8k_fw_lock(struct ieee80211_hw *hw)
1696 struct mwl8k_priv *priv = hw->priv;
1698 if (priv->fw_mutex_owner != current) {
1701 mutex_lock(&priv->fw_mutex);
1702 ieee80211_stop_queues(hw);
1704 rc = mwl8k_tx_wait_empty(hw);
1706 ieee80211_wake_queues(hw);
1707 mutex_unlock(&priv->fw_mutex);
1712 priv->fw_mutex_owner = current;
1715 priv->fw_mutex_depth++;
1720 static void mwl8k_fw_unlock(struct ieee80211_hw *hw)
1722 struct mwl8k_priv *priv = hw->priv;
1724 if (!--priv->fw_mutex_depth) {
1725 ieee80211_wake_queues(hw);
1726 priv->fw_mutex_owner = NULL;
1727 mutex_unlock(&priv->fw_mutex);
1733 * Command processing.
1736 /* Timeout firmware commands after 10s */
1737 #define MWL8K_CMD_TIMEOUT_MS 10000
1739 static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd)
1741 DECLARE_COMPLETION_ONSTACK(cmd_wait);
1742 struct mwl8k_priv *priv = hw->priv;
1743 void __iomem *regs = priv->regs;
1744 dma_addr_t dma_addr;
1745 unsigned int dma_size;
1747 unsigned long timeout = 0;
1750 cmd->result = (__force __le16) 0xffff;
1751 dma_size = le16_to_cpu(cmd->length);
1752 dma_addr = pci_map_single(priv->pdev, cmd, dma_size,
1753 PCI_DMA_BIDIRECTIONAL);
1754 if (pci_dma_mapping_error(priv->pdev, dma_addr))
1757 rc = mwl8k_fw_lock(hw);
1759 pci_unmap_single(priv->pdev, dma_addr, dma_size,
1760 PCI_DMA_BIDIRECTIONAL);
1764 priv->hostcmd_wait = &cmd_wait;
1765 iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
1766 iowrite32(MWL8K_H2A_INT_DOORBELL,
1767 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1768 iowrite32(MWL8K_H2A_INT_DUMMY,
1769 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1771 timeout = wait_for_completion_timeout(&cmd_wait,
1772 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS));
1774 priv->hostcmd_wait = NULL;
1776 mwl8k_fw_unlock(hw);
1778 pci_unmap_single(priv->pdev, dma_addr, dma_size,
1779 PCI_DMA_BIDIRECTIONAL);
1782 wiphy_err(hw->wiphy, "Command %s timeout after %u ms\n",
1783 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
1784 MWL8K_CMD_TIMEOUT_MS);
1789 ms = MWL8K_CMD_TIMEOUT_MS - jiffies_to_msecs(timeout);
1791 rc = cmd->result ? -EINVAL : 0;
1793 wiphy_err(hw->wiphy, "Command %s error 0x%x\n",
1794 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
1795 le16_to_cpu(cmd->result));
1797 wiphy_notice(hw->wiphy, "Command %s took %d ms\n",
1798 mwl8k_cmd_name(cmd->code,
1806 static int mwl8k_post_pervif_cmd(struct ieee80211_hw *hw,
1807 struct ieee80211_vif *vif,
1808 struct mwl8k_cmd_pkt *cmd)
1811 cmd->macid = MWL8K_VIF(vif)->macid;
1812 return mwl8k_post_cmd(hw, cmd);
1816 * Setup code shared between STA and AP firmware images.
1818 static void mwl8k_setup_2ghz_band(struct ieee80211_hw *hw)
1820 struct mwl8k_priv *priv = hw->priv;
1822 BUILD_BUG_ON(sizeof(priv->channels_24) != sizeof(mwl8k_channels_24));
1823 memcpy(priv->channels_24, mwl8k_channels_24, sizeof(mwl8k_channels_24));
1825 BUILD_BUG_ON(sizeof(priv->rates_24) != sizeof(mwl8k_rates_24));
1826 memcpy(priv->rates_24, mwl8k_rates_24, sizeof(mwl8k_rates_24));
1828 priv->band_24.band = IEEE80211_BAND_2GHZ;
1829 priv->band_24.channels = priv->channels_24;
1830 priv->band_24.n_channels = ARRAY_SIZE(mwl8k_channels_24);
1831 priv->band_24.bitrates = priv->rates_24;
1832 priv->band_24.n_bitrates = ARRAY_SIZE(mwl8k_rates_24);
1834 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band_24;
1837 static void mwl8k_setup_5ghz_band(struct ieee80211_hw *hw)
1839 struct mwl8k_priv *priv = hw->priv;
1841 BUILD_BUG_ON(sizeof(priv->channels_50) != sizeof(mwl8k_channels_50));
1842 memcpy(priv->channels_50, mwl8k_channels_50, sizeof(mwl8k_channels_50));
1844 BUILD_BUG_ON(sizeof(priv->rates_50) != sizeof(mwl8k_rates_50));
1845 memcpy(priv->rates_50, mwl8k_rates_50, sizeof(mwl8k_rates_50));
1847 priv->band_50.band = IEEE80211_BAND_5GHZ;
1848 priv->band_50.channels = priv->channels_50;
1849 priv->band_50.n_channels = ARRAY_SIZE(mwl8k_channels_50);
1850 priv->band_50.bitrates = priv->rates_50;
1851 priv->band_50.n_bitrates = ARRAY_SIZE(mwl8k_rates_50);
1853 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &priv->band_50;
1857 * CMD_GET_HW_SPEC (STA version).
1859 struct mwl8k_cmd_get_hw_spec_sta {
1860 struct mwl8k_cmd_pkt header;
1862 __u8 host_interface;
1864 __u8 perm_addr[ETH_ALEN];
1869 __u8 mcs_bitmap[16];
1870 __le32 rx_queue_ptr;
1871 __le32 num_tx_queues;
1872 __le32 tx_queue_ptrs[MWL8K_TX_QUEUES];
1874 __le32 num_tx_desc_per_queue;
1878 #define MWL8K_CAP_MAX_AMSDU 0x20000000
1879 #define MWL8K_CAP_GREENFIELD 0x08000000
1880 #define MWL8K_CAP_AMPDU 0x04000000
1881 #define MWL8K_CAP_RX_STBC 0x01000000
1882 #define MWL8K_CAP_TX_STBC 0x00800000
1883 #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000
1884 #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000
1885 #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000
1886 #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000
1887 #define MWL8K_CAP_DELAY_BA 0x00003000
1888 #define MWL8K_CAP_MIMO 0x00000200
1889 #define MWL8K_CAP_40MHZ 0x00000100
1890 #define MWL8K_CAP_BAND_MASK 0x00000007
1891 #define MWL8K_CAP_5GHZ 0x00000004
1892 #define MWL8K_CAP_2GHZ4 0x00000001
1895 mwl8k_set_ht_caps(struct ieee80211_hw *hw,
1896 struct ieee80211_supported_band *band, u32 cap)
1901 band->ht_cap.ht_supported = 1;
1903 if (cap & MWL8K_CAP_MAX_AMSDU)
1904 band->ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
1905 if (cap & MWL8K_CAP_GREENFIELD)
1906 band->ht_cap.cap |= IEEE80211_HT_CAP_GRN_FLD;
1907 if (cap & MWL8K_CAP_AMPDU) {
1908 hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
1909 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1910 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1912 if (cap & MWL8K_CAP_RX_STBC)
1913 band->ht_cap.cap |= IEEE80211_HT_CAP_RX_STBC;
1914 if (cap & MWL8K_CAP_TX_STBC)
1915 band->ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
1916 if (cap & MWL8K_CAP_SHORTGI_40MHZ)
1917 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
1918 if (cap & MWL8K_CAP_SHORTGI_20MHZ)
1919 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
1920 if (cap & MWL8K_CAP_DELAY_BA)
1921 band->ht_cap.cap |= IEEE80211_HT_CAP_DELAY_BA;
1922 if (cap & MWL8K_CAP_40MHZ)
1923 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1925 rx_streams = hweight32(cap & MWL8K_CAP_RX_ANTENNA_MASK);
1926 tx_streams = hweight32(cap & MWL8K_CAP_TX_ANTENNA_MASK);
1928 band->ht_cap.mcs.rx_mask[0] = 0xff;
1929 if (rx_streams >= 2)
1930 band->ht_cap.mcs.rx_mask[1] = 0xff;
1931 if (rx_streams >= 3)
1932 band->ht_cap.mcs.rx_mask[2] = 0xff;
1933 band->ht_cap.mcs.rx_mask[4] = 0x01;
1934 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1936 if (rx_streams != tx_streams) {
1937 band->ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
1938 band->ht_cap.mcs.tx_params |= (tx_streams - 1) <<
1939 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
1944 mwl8k_set_caps(struct ieee80211_hw *hw, u32 caps)
1946 struct mwl8k_priv *priv = hw->priv;
1948 if ((caps & MWL8K_CAP_2GHZ4) || !(caps & MWL8K_CAP_BAND_MASK)) {
1949 mwl8k_setup_2ghz_band(hw);
1950 if (caps & MWL8K_CAP_MIMO)
1951 mwl8k_set_ht_caps(hw, &priv->band_24, caps);
1954 if (caps & MWL8K_CAP_5GHZ) {
1955 mwl8k_setup_5ghz_band(hw);
1956 if (caps & MWL8K_CAP_MIMO)
1957 mwl8k_set_ht_caps(hw, &priv->band_50, caps);
1961 static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw *hw)
1963 struct mwl8k_priv *priv = hw->priv;
1964 struct mwl8k_cmd_get_hw_spec_sta *cmd;
1968 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1972 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
1973 cmd->header.length = cpu_to_le16(sizeof(*cmd));
1975 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
1976 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
1977 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
1978 cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES);
1979 for (i = 0; i < MWL8K_TX_QUEUES; i++)
1980 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma);
1981 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
1982 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
1984 rc = mwl8k_post_cmd(hw, &cmd->header);
1987 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
1988 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
1989 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
1990 priv->hw_rev = cmd->hw_rev;
1991 mwl8k_set_caps(hw, le32_to_cpu(cmd->caps));
1992 priv->ap_macids_supported = 0x00000000;
1993 priv->sta_macids_supported = 0x00000001;
2001 * CMD_GET_HW_SPEC (AP version).
2003 struct mwl8k_cmd_get_hw_spec_ap {
2004 struct mwl8k_cmd_pkt header;
2006 __u8 host_interface;
2009 __u8 perm_addr[ETH_ALEN];
2020 __le32 fw_api_version;
2023 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw)
2025 struct mwl8k_priv *priv = hw->priv;
2026 struct mwl8k_cmd_get_hw_spec_ap *cmd;
2030 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2034 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
2035 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2037 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
2038 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2040 rc = mwl8k_post_cmd(hw, &cmd->header);
2045 api_version = le32_to_cpu(cmd->fw_api_version);
2046 if (priv->device_info->fw_api_ap != api_version) {
2047 printk(KERN_ERR "%s: Unsupported fw API version for %s."
2048 " Expected %d got %d.\n", MWL8K_NAME,
2049 priv->device_info->part_name,
2050 priv->device_info->fw_api_ap,
2055 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
2056 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
2057 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
2058 priv->hw_rev = cmd->hw_rev;
2059 mwl8k_setup_2ghz_band(hw);
2060 priv->ap_macids_supported = 0x000000ff;
2061 priv->sta_macids_supported = 0x00000000;
2063 off = le32_to_cpu(cmd->wcbbase0) & 0xffff;
2064 iowrite32(priv->txq[0].txd_dma, priv->sram + off);
2066 off = le32_to_cpu(cmd->rxwrptr) & 0xffff;
2067 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2069 off = le32_to_cpu(cmd->rxrdptr) & 0xffff;
2070 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2072 off = le32_to_cpu(cmd->wcbbase1) & 0xffff;
2073 iowrite32(priv->txq[1].txd_dma, priv->sram + off);
2075 off = le32_to_cpu(cmd->wcbbase2) & 0xffff;
2076 iowrite32(priv->txq[2].txd_dma, priv->sram + off);
2078 off = le32_to_cpu(cmd->wcbbase3) & 0xffff;
2079 iowrite32(priv->txq[3].txd_dma, priv->sram + off);
2090 struct mwl8k_cmd_set_hw_spec {
2091 struct mwl8k_cmd_pkt header;
2093 __u8 host_interface;
2095 __u8 perm_addr[ETH_ALEN];
2100 __le32 rx_queue_ptr;
2101 __le32 num_tx_queues;
2102 __le32 tx_queue_ptrs[MWL8K_TX_QUEUES];
2104 __le32 num_tx_desc_per_queue;
2108 #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
2109 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
2110 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
2112 static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw *hw)
2114 struct mwl8k_priv *priv = hw->priv;
2115 struct mwl8k_cmd_set_hw_spec *cmd;
2119 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2123 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_HW_SPEC);
2124 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2126 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2127 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
2128 cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES);
2131 * Mac80211 stack has Q0 as highest priority and Q3 as lowest in
2132 * that order. Firmware has Q3 as highest priority and Q0 as lowest
2133 * in that order. Map Q3 of mac80211 to Q0 of firmware so that the
2134 * priority is interpreted the right way in firmware.
2136 for (i = 0; i < MWL8K_TX_QUEUES; i++) {
2137 int j = MWL8K_TX_QUEUES - 1 - i;
2138 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[j].txd_dma);
2141 cmd->flags = cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT |
2142 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP |
2143 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON);
2144 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
2145 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
2147 rc = mwl8k_post_cmd(hw, &cmd->header);
2154 * CMD_MAC_MULTICAST_ADR.
2156 struct mwl8k_cmd_mac_multicast_adr {
2157 struct mwl8k_cmd_pkt header;
2160 __u8 addr[0][ETH_ALEN];
2163 #define MWL8K_ENABLE_RX_DIRECTED 0x0001
2164 #define MWL8K_ENABLE_RX_MULTICAST 0x0002
2165 #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
2166 #define MWL8K_ENABLE_RX_BROADCAST 0x0008
2168 static struct mwl8k_cmd_pkt *
2169 __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti,
2170 struct netdev_hw_addr_list *mc_list)
2172 struct mwl8k_priv *priv = hw->priv;
2173 struct mwl8k_cmd_mac_multicast_adr *cmd;
2178 mc_count = netdev_hw_addr_list_count(mc_list);
2180 if (allmulti || mc_count > priv->num_mcaddrs) {
2185 size = sizeof(*cmd) + mc_count * ETH_ALEN;
2187 cmd = kzalloc(size, GFP_ATOMIC);
2191 cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR);
2192 cmd->header.length = cpu_to_le16(size);
2193 cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED |
2194 MWL8K_ENABLE_RX_BROADCAST);
2197 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST);
2198 } else if (mc_count) {
2199 struct netdev_hw_addr *ha;
2202 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST);
2203 cmd->numaddr = cpu_to_le16(mc_count);
2204 netdev_hw_addr_list_for_each(ha, mc_list) {
2205 memcpy(cmd->addr[i], ha->addr, ETH_ALEN);
2209 return &cmd->header;
2215 struct mwl8k_cmd_get_stat {
2216 struct mwl8k_cmd_pkt header;
2220 #define MWL8K_STAT_ACK_FAILURE 9
2221 #define MWL8K_STAT_RTS_FAILURE 12
2222 #define MWL8K_STAT_FCS_ERROR 24
2223 #define MWL8K_STAT_RTS_SUCCESS 11
2225 static int mwl8k_cmd_get_stat(struct ieee80211_hw *hw,
2226 struct ieee80211_low_level_stats *stats)
2228 struct mwl8k_cmd_get_stat *cmd;
2231 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2235 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT);
2236 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2238 rc = mwl8k_post_cmd(hw, &cmd->header);
2240 stats->dot11ACKFailureCount =
2241 le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]);
2242 stats->dot11RTSFailureCount =
2243 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]);
2244 stats->dot11FCSErrorCount =
2245 le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]);
2246 stats->dot11RTSSuccessCount =
2247 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]);
2255 * CMD_RADIO_CONTROL.
2257 struct mwl8k_cmd_radio_control {
2258 struct mwl8k_cmd_pkt header;
2265 mwl8k_cmd_radio_control(struct ieee80211_hw *hw, bool enable, bool force)
2267 struct mwl8k_priv *priv = hw->priv;
2268 struct mwl8k_cmd_radio_control *cmd;
2271 if (enable == priv->radio_on && !force)
2274 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2278 cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL);
2279 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2280 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2281 cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1);
2282 cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000);
2284 rc = mwl8k_post_cmd(hw, &cmd->header);
2288 priv->radio_on = enable;
2293 static int mwl8k_cmd_radio_disable(struct ieee80211_hw *hw)
2295 return mwl8k_cmd_radio_control(hw, 0, 0);
2298 static int mwl8k_cmd_radio_enable(struct ieee80211_hw *hw)
2300 return mwl8k_cmd_radio_control(hw, 1, 0);
2304 mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble)
2306 struct mwl8k_priv *priv = hw->priv;
2308 priv->radio_short_preamble = short_preamble;
2310 return mwl8k_cmd_radio_control(hw, 1, 1);
2316 #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8
2318 struct mwl8k_cmd_rf_tx_power {
2319 struct mwl8k_cmd_pkt header;
2321 __le16 support_level;
2322 __le16 current_level;
2324 __le16 power_level_list[MWL8K_RF_TX_POWER_LEVEL_TOTAL];
2327 static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw *hw, int dBm)
2329 struct mwl8k_cmd_rf_tx_power *cmd;
2332 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2336 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER);
2337 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2338 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2339 cmd->support_level = cpu_to_le16(dBm);
2341 rc = mwl8k_post_cmd(hw, &cmd->header);
2350 #define MWL8K_TX_POWER_LEVEL_TOTAL 12
2352 struct mwl8k_cmd_tx_power {
2353 struct mwl8k_cmd_pkt header;
2359 __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL];
2360 } __attribute__((packed));
2362 static int mwl8k_cmd_tx_power(struct ieee80211_hw *hw,
2363 struct ieee80211_conf *conf,
2366 struct ieee80211_channel *channel = conf->channel;
2367 struct mwl8k_cmd_tx_power *cmd;
2371 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2375 cmd->header.code = cpu_to_le16(MWL8K_CMD_TX_POWER);
2376 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2377 cmd->action = cpu_to_le16(MWL8K_CMD_SET_LIST);
2379 if (channel->band == IEEE80211_BAND_2GHZ)
2380 cmd->band = cpu_to_le16(0x1);
2381 else if (channel->band == IEEE80211_BAND_5GHZ)
2382 cmd->band = cpu_to_le16(0x4);
2384 cmd->channel = channel->hw_value;
2386 if (conf->channel_type == NL80211_CHAN_NO_HT ||
2387 conf->channel_type == NL80211_CHAN_HT20) {
2388 cmd->bw = cpu_to_le16(0x2);
2390 cmd->bw = cpu_to_le16(0x4);
2391 if (conf->channel_type == NL80211_CHAN_HT40MINUS)
2392 cmd->sub_ch = cpu_to_le16(0x3);
2393 else if (conf->channel_type == NL80211_CHAN_HT40PLUS)
2394 cmd->sub_ch = cpu_to_le16(0x1);
2397 for (i = 0; i < MWL8K_TX_POWER_LEVEL_TOTAL; i++)
2398 cmd->power_level_list[i] = cpu_to_le16(pwr);
2400 rc = mwl8k_post_cmd(hw, &cmd->header);
2409 struct mwl8k_cmd_rf_antenna {
2410 struct mwl8k_cmd_pkt header;
2415 #define MWL8K_RF_ANTENNA_RX 1
2416 #define MWL8K_RF_ANTENNA_TX 2
2419 mwl8k_cmd_rf_antenna(struct ieee80211_hw *hw, int antenna, int mask)
2421 struct mwl8k_cmd_rf_antenna *cmd;
2424 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2428 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_ANTENNA);
2429 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2430 cmd->antenna = cpu_to_le16(antenna);
2431 cmd->mode = cpu_to_le16(mask);
2433 rc = mwl8k_post_cmd(hw, &cmd->header);
2442 struct mwl8k_cmd_set_beacon {
2443 struct mwl8k_cmd_pkt header;
2448 static int mwl8k_cmd_set_beacon(struct ieee80211_hw *hw,
2449 struct ieee80211_vif *vif, u8 *beacon, int len)
2451 struct mwl8k_cmd_set_beacon *cmd;
2454 cmd = kzalloc(sizeof(*cmd) + len, GFP_KERNEL);
2458 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_BEACON);
2459 cmd->header.length = cpu_to_le16(sizeof(*cmd) + len);
2460 cmd->beacon_len = cpu_to_le16(len);
2461 memcpy(cmd->beacon, beacon, len);
2463 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
2472 struct mwl8k_cmd_set_pre_scan {
2473 struct mwl8k_cmd_pkt header;
2476 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw)
2478 struct mwl8k_cmd_set_pre_scan *cmd;
2481 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2485 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN);
2486 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2488 rc = mwl8k_post_cmd(hw, &cmd->header);
2495 * CMD_SET_POST_SCAN.
2497 struct mwl8k_cmd_set_post_scan {
2498 struct mwl8k_cmd_pkt header;
2500 __u8 bssid[ETH_ALEN];
2504 mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, const __u8 *mac)
2506 struct mwl8k_cmd_set_post_scan *cmd;
2509 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2513 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN);
2514 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2516 memcpy(cmd->bssid, mac, ETH_ALEN);
2518 rc = mwl8k_post_cmd(hw, &cmd->header);
2525 * CMD_SET_RF_CHANNEL.
2527 struct mwl8k_cmd_set_rf_channel {
2528 struct mwl8k_cmd_pkt header;
2530 __u8 current_channel;
2531 __le32 channel_flags;
2534 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw,
2535 struct ieee80211_conf *conf)
2537 struct ieee80211_channel *channel = conf->channel;
2538 struct mwl8k_cmd_set_rf_channel *cmd;
2541 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2545 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL);
2546 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2547 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2548 cmd->current_channel = channel->hw_value;
2550 if (channel->band == IEEE80211_BAND_2GHZ)
2551 cmd->channel_flags |= cpu_to_le32(0x00000001);
2552 else if (channel->band == IEEE80211_BAND_5GHZ)
2553 cmd->channel_flags |= cpu_to_le32(0x00000004);
2555 if (conf->channel_type == NL80211_CHAN_NO_HT ||
2556 conf->channel_type == NL80211_CHAN_HT20)
2557 cmd->channel_flags |= cpu_to_le32(0x00000080);
2558 else if (conf->channel_type == NL80211_CHAN_HT40MINUS)
2559 cmd->channel_flags |= cpu_to_le32(0x000001900);
2560 else if (conf->channel_type == NL80211_CHAN_HT40PLUS)
2561 cmd->channel_flags |= cpu_to_le32(0x000000900);
2563 rc = mwl8k_post_cmd(hw, &cmd->header);
2572 #define MWL8K_FRAME_PROT_DISABLED 0x00
2573 #define MWL8K_FRAME_PROT_11G 0x07
2574 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
2575 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
2577 struct mwl8k_cmd_update_set_aid {
2578 struct mwl8k_cmd_pkt header;
2581 /* AP's MAC address (BSSID) */
2582 __u8 bssid[ETH_ALEN];
2583 __le16 protection_mode;
2584 __u8 supp_rates[14];
2587 static void legacy_rate_mask_to_array(u8 *rates, u32 mask)
2593 * Clear nonstandard rates 4 and 13.
2597 for (i = 0, j = 0; i < 14; i++) {
2598 if (mask & (1 << i))
2599 rates[j++] = mwl8k_rates_24[i].hw_value;
2604 mwl8k_cmd_set_aid(struct ieee80211_hw *hw,
2605 struct ieee80211_vif *vif, u32 legacy_rate_mask)
2607 struct mwl8k_cmd_update_set_aid *cmd;
2611 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2615 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID);
2616 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2617 cmd->aid = cpu_to_le16(vif->bss_conf.aid);
2618 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
2620 if (vif->bss_conf.use_cts_prot) {
2621 prot_mode = MWL8K_FRAME_PROT_11G;
2623 switch (vif->bss_conf.ht_operation_mode &
2624 IEEE80211_HT_OP_MODE_PROTECTION) {
2625 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
2626 prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY;
2628 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
2629 prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL;
2632 prot_mode = MWL8K_FRAME_PROT_DISABLED;
2636 cmd->protection_mode = cpu_to_le16(prot_mode);
2638 legacy_rate_mask_to_array(cmd->supp_rates, legacy_rate_mask);
2640 rc = mwl8k_post_cmd(hw, &cmd->header);
2649 struct mwl8k_cmd_set_rate {
2650 struct mwl8k_cmd_pkt header;
2651 __u8 legacy_rates[14];
2653 /* Bitmap for supported MCS codes. */
2659 mwl8k_cmd_set_rate(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
2660 u32 legacy_rate_mask, u8 *mcs_rates)
2662 struct mwl8k_cmd_set_rate *cmd;
2665 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2669 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE);
2670 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2671 legacy_rate_mask_to_array(cmd->legacy_rates, legacy_rate_mask);
2672 memcpy(cmd->mcs_set, mcs_rates, 16);
2674 rc = mwl8k_post_cmd(hw, &cmd->header);
2681 * CMD_FINALIZE_JOIN.
2683 #define MWL8K_FJ_BEACON_MAXLEN 128
2685 struct mwl8k_cmd_finalize_join {
2686 struct mwl8k_cmd_pkt header;
2687 __le32 sleep_interval; /* Number of beacon periods to sleep */
2688 __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN];
2691 static int mwl8k_cmd_finalize_join(struct ieee80211_hw *hw, void *frame,
2692 int framelen, int dtim)
2694 struct mwl8k_cmd_finalize_join *cmd;
2695 struct ieee80211_mgmt *payload = frame;
2699 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2703 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN);
2704 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2705 cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1);
2707 payload_len = framelen - ieee80211_hdrlen(payload->frame_control);
2708 if (payload_len < 0)
2710 else if (payload_len > MWL8K_FJ_BEACON_MAXLEN)
2711 payload_len = MWL8K_FJ_BEACON_MAXLEN;
2713 memcpy(cmd->beacon_data, &payload->u.beacon, payload_len);
2715 rc = mwl8k_post_cmd(hw, &cmd->header);
2722 * CMD_SET_RTS_THRESHOLD.
2724 struct mwl8k_cmd_set_rts_threshold {
2725 struct mwl8k_cmd_pkt header;
2731 mwl8k_cmd_set_rts_threshold(struct ieee80211_hw *hw, int rts_thresh)
2733 struct mwl8k_cmd_set_rts_threshold *cmd;
2736 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2740 cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD);
2741 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2742 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2743 cmd->threshold = cpu_to_le16(rts_thresh);
2745 rc = mwl8k_post_cmd(hw, &cmd->header);
2754 struct mwl8k_cmd_set_slot {
2755 struct mwl8k_cmd_pkt header;
2760 static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time)
2762 struct mwl8k_cmd_set_slot *cmd;
2765 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2769 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT);
2770 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2771 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2772 cmd->short_slot = short_slot_time;
2774 rc = mwl8k_post_cmd(hw, &cmd->header);
2781 * CMD_SET_EDCA_PARAMS.
2783 struct mwl8k_cmd_set_edca_params {
2784 struct mwl8k_cmd_pkt header;
2786 /* See MWL8K_SET_EDCA_XXX below */
2789 /* TX opportunity in units of 32 us */
2794 /* Log exponent of max contention period: 0...15 */
2797 /* Log exponent of min contention period: 0...15 */
2800 /* Adaptive interframe spacing in units of 32us */
2803 /* TX queue to configure */
2807 /* Log exponent of max contention period: 0...15 */
2810 /* Log exponent of min contention period: 0...15 */
2813 /* Adaptive interframe spacing in units of 32us */
2816 /* TX queue to configure */
2822 #define MWL8K_SET_EDCA_CW 0x01
2823 #define MWL8K_SET_EDCA_TXOP 0x02
2824 #define MWL8K_SET_EDCA_AIFS 0x04
2826 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
2827 MWL8K_SET_EDCA_TXOP | \
2828 MWL8K_SET_EDCA_AIFS)
2831 mwl8k_cmd_set_edca_params(struct ieee80211_hw *hw, __u8 qnum,
2832 __u16 cw_min, __u16 cw_max,
2833 __u8 aifs, __u16 txop)
2835 struct mwl8k_priv *priv = hw->priv;
2836 struct mwl8k_cmd_set_edca_params *cmd;
2839 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2843 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS);
2844 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2845 cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL);
2846 cmd->txop = cpu_to_le16(txop);
2848 cmd->ap.log_cw_max = cpu_to_le32(ilog2(cw_max + 1));
2849 cmd->ap.log_cw_min = cpu_to_le32(ilog2(cw_min + 1));
2850 cmd->ap.aifs = aifs;
2853 cmd->sta.log_cw_max = (u8)ilog2(cw_max + 1);
2854 cmd->sta.log_cw_min = (u8)ilog2(cw_min + 1);
2855 cmd->sta.aifs = aifs;
2856 cmd->sta.txq = qnum;
2859 rc = mwl8k_post_cmd(hw, &cmd->header);
2868 struct mwl8k_cmd_set_wmm_mode {
2869 struct mwl8k_cmd_pkt header;
2873 static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw *hw, bool enable)
2875 struct mwl8k_priv *priv = hw->priv;
2876 struct mwl8k_cmd_set_wmm_mode *cmd;
2879 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2883 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE);
2884 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2885 cmd->action = cpu_to_le16(!!enable);
2887 rc = mwl8k_post_cmd(hw, &cmd->header);
2891 priv->wmm_enabled = enable;
2899 struct mwl8k_cmd_mimo_config {
2900 struct mwl8k_cmd_pkt header;
2902 __u8 rx_antenna_map;
2903 __u8 tx_antenna_map;
2906 static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx)
2908 struct mwl8k_cmd_mimo_config *cmd;
2911 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2915 cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG);
2916 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2917 cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET);
2918 cmd->rx_antenna_map = rx;
2919 cmd->tx_antenna_map = tx;
2921 rc = mwl8k_post_cmd(hw, &cmd->header);
2928 * CMD_USE_FIXED_RATE (STA version).
2930 struct mwl8k_cmd_use_fixed_rate_sta {
2931 struct mwl8k_cmd_pkt header;
2933 __le32 allow_rate_drop;
2937 __le32 enable_retry;
2946 #define MWL8K_USE_AUTO_RATE 0x0002
2947 #define MWL8K_UCAST_RATE 0
2949 static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw *hw)
2951 struct mwl8k_cmd_use_fixed_rate_sta *cmd;
2954 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2958 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
2959 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2960 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
2961 cmd->rate_type = cpu_to_le32(MWL8K_UCAST_RATE);
2963 rc = mwl8k_post_cmd(hw, &cmd->header);
2970 * CMD_USE_FIXED_RATE (AP version).
2972 struct mwl8k_cmd_use_fixed_rate_ap {
2973 struct mwl8k_cmd_pkt header;
2975 __le32 allow_rate_drop;
2977 struct mwl8k_rate_entry_ap {
2979 __le32 enable_retry;
2984 u8 multicast_rate_type;
2989 mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw *hw, int mcast, int mgmt)
2991 struct mwl8k_cmd_use_fixed_rate_ap *cmd;
2994 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2998 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
2999 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3000 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
3001 cmd->multicast_rate = mcast;
3002 cmd->management_rate = mgmt;
3004 rc = mwl8k_post_cmd(hw, &cmd->header);
3011 * CMD_ENABLE_SNIFFER.
3013 struct mwl8k_cmd_enable_sniffer {
3014 struct mwl8k_cmd_pkt header;
3018 static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw *hw, bool enable)
3020 struct mwl8k_cmd_enable_sniffer *cmd;
3023 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3027 cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER);
3028 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3029 cmd->action = cpu_to_le32(!!enable);
3031 rc = mwl8k_post_cmd(hw, &cmd->header);
3040 struct mwl8k_cmd_set_mac_addr {
3041 struct mwl8k_cmd_pkt header;
3045 __u8 mac_addr[ETH_ALEN];
3047 __u8 mac_addr[ETH_ALEN];
3051 #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0
3052 #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1
3053 #define MWL8K_MAC_TYPE_PRIMARY_AP 2
3054 #define MWL8K_MAC_TYPE_SECONDARY_AP 3
3056 static int mwl8k_cmd_set_mac_addr(struct ieee80211_hw *hw,
3057 struct ieee80211_vif *vif, u8 *mac)
3059 struct mwl8k_priv *priv = hw->priv;
3060 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3061 struct mwl8k_cmd_set_mac_addr *cmd;
3065 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3066 if (vif != NULL && vif->type == NL80211_IFTYPE_STATION) {
3067 if (mwl8k_vif->macid + 1 == ffs(priv->sta_macids_supported))
3068 mac_type = MWL8K_MAC_TYPE_PRIMARY_CLIENT;
3070 mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT;
3071 } else if (vif != NULL && vif->type == NL80211_IFTYPE_AP) {
3072 if (mwl8k_vif->macid + 1 == ffs(priv->ap_macids_supported))
3073 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3075 mac_type = MWL8K_MAC_TYPE_SECONDARY_AP;
3078 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3082 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR);
3083 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3085 cmd->mbss.mac_type = cpu_to_le16(mac_type);
3086 memcpy(cmd->mbss.mac_addr, mac, ETH_ALEN);
3088 memcpy(cmd->mac_addr, mac, ETH_ALEN);
3091 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3098 * CMD_SET_RATEADAPT_MODE.
3100 struct mwl8k_cmd_set_rate_adapt_mode {
3101 struct mwl8k_cmd_pkt header;
3106 static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw *hw, __u16 mode)
3108 struct mwl8k_cmd_set_rate_adapt_mode *cmd;
3111 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3115 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE);
3116 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3117 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3118 cmd->mode = cpu_to_le16(mode);
3120 rc = mwl8k_post_cmd(hw, &cmd->header);
3129 struct mwl8k_cmd_bss_start {
3130 struct mwl8k_cmd_pkt header;
3134 static int mwl8k_cmd_bss_start(struct ieee80211_hw *hw,
3135 struct ieee80211_vif *vif, int enable)
3137 struct mwl8k_cmd_bss_start *cmd;
3140 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3144 cmd->header.code = cpu_to_le16(MWL8K_CMD_BSS_START);
3145 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3146 cmd->enable = cpu_to_le32(enable);
3148 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3157 struct mwl8k_cmd_set_new_stn {
3158 struct mwl8k_cmd_pkt header;
3164 __le32 legacy_rates;
3167 __le16 ht_capabilities_info;
3168 __u8 mac_ht_param_info;
3170 __u8 control_channel;
3179 #define MWL8K_STA_ACTION_ADD 0
3180 #define MWL8K_STA_ACTION_REMOVE 2
3182 static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw *hw,
3183 struct ieee80211_vif *vif,
3184 struct ieee80211_sta *sta)
3186 struct mwl8k_cmd_set_new_stn *cmd;
3190 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3194 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
3195 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3196 cmd->aid = cpu_to_le16(sta->aid);
3197 memcpy(cmd->mac_addr, sta->addr, ETH_ALEN);
3198 cmd->stn_id = cpu_to_le16(sta->aid);
3199 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_ADD);
3200 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ)
3201 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
3203 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
3204 cmd->legacy_rates = cpu_to_le32(rates);
3205 if (sta->ht_cap.ht_supported) {
3206 cmd->ht_rates[0] = sta->ht_cap.mcs.rx_mask[0];
3207 cmd->ht_rates[1] = sta->ht_cap.mcs.rx_mask[1];
3208 cmd->ht_rates[2] = sta->ht_cap.mcs.rx_mask[2];
3209 cmd->ht_rates[3] = sta->ht_cap.mcs.rx_mask[3];
3210 cmd->ht_capabilities_info = cpu_to_le16(sta->ht_cap.cap);
3211 cmd->mac_ht_param_info = (sta->ht_cap.ampdu_factor & 3) |
3212 ((sta->ht_cap.ampdu_density & 7) << 2);
3213 cmd->is_qos_sta = 1;
3216 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3222 static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw *hw,
3223 struct ieee80211_vif *vif)
3225 struct mwl8k_cmd_set_new_stn *cmd;
3228 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3232 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
3233 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3234 memcpy(cmd->mac_addr, vif->addr, ETH_ALEN);
3236 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3242 static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw *hw,
3243 struct ieee80211_vif *vif, u8 *addr)
3245 struct mwl8k_cmd_set_new_stn *cmd;
3248 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3252 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
3253 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3254 memcpy(cmd->mac_addr, addr, ETH_ALEN);
3255 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_REMOVE);
3257 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3264 * CMD_UPDATE_ENCRYPTION.
3267 #define MAX_ENCR_KEY_LENGTH 16
3268 #define MIC_KEY_LENGTH 8
3270 struct mwl8k_cmd_update_encryption {
3271 struct mwl8k_cmd_pkt header;
3278 } __attribute__((packed));
3280 struct mwl8k_cmd_set_key {
3281 struct mwl8k_cmd_pkt header;
3290 __u8 key_material[MAX_ENCR_KEY_LENGTH];
3291 __u8 tkip_tx_mic_key[MIC_KEY_LENGTH];
3292 __u8 tkip_rx_mic_key[MIC_KEY_LENGTH];
3293 __le16 tkip_rsc_low;
3294 __le32 tkip_rsc_high;
3295 __le16 tkip_tsc_low;
3296 __le32 tkip_tsc_high;
3298 } __attribute__((packed));
3303 MWL8K_ENCR_REMOVE_KEY,
3304 MWL8K_ENCR_SET_GROUP_KEY,
3307 #define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0
3308 #define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1
3309 #define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4
3310 #define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7
3311 #define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8
3319 #define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004
3320 #define MWL8K_KEY_FLAG_PAIRWISE 0x00000008
3321 #define MWL8K_KEY_FLAG_TSC_VALID 0x00000040
3322 #define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000
3323 #define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000
3325 static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw *hw,
3326 struct ieee80211_vif *vif,
3330 struct mwl8k_cmd_update_encryption *cmd;
3333 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3337 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
3338 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3339 cmd->action = cpu_to_le32(MWL8K_ENCR_ENABLE);
3340 memcpy(cmd->mac_addr, addr, ETH_ALEN);
3341 cmd->encr_type = encr_type;
3343 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3349 static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key *cmd,
3351 struct ieee80211_key_conf *key)
3353 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
3354 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3355 cmd->length = cpu_to_le16(sizeof(*cmd) -
3356 offsetof(struct mwl8k_cmd_set_key, length));
3357 cmd->key_id = cpu_to_le32(key->keyidx);
3358 cmd->key_len = cpu_to_le16(key->keylen);
3359 memcpy(cmd->mac_addr, addr, ETH_ALEN);
3361 switch (key->cipher) {
3362 case WLAN_CIPHER_SUITE_WEP40:
3363 case WLAN_CIPHER_SUITE_WEP104:
3364 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_WEP);
3365 if (key->keyidx == 0)
3366 cmd->key_info = cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY);
3369 case WLAN_CIPHER_SUITE_TKIP:
3370 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_TKIP);
3371 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
3372 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
3373 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
3374 cmd->key_info |= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID
3375 | MWL8K_KEY_FLAG_TSC_VALID);
3377 case WLAN_CIPHER_SUITE_CCMP:
3378 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_CCMP);
3379 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
3380 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
3381 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
3390 static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw *hw,
3391 struct ieee80211_vif *vif,
3393 struct ieee80211_key_conf *key)
3395 struct mwl8k_cmd_set_key *cmd;
3400 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3402 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3406 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
3412 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
3413 action = MWL8K_ENCR_SET_KEY;
3415 action = MWL8K_ENCR_SET_GROUP_KEY;
3417 switch (key->cipher) {
3418 case WLAN_CIPHER_SUITE_WEP40:
3419 case WLAN_CIPHER_SUITE_WEP104:
3420 if (!mwl8k_vif->wep_key_conf[idx].enabled) {
3421 memcpy(mwl8k_vif->wep_key_conf[idx].key, key,
3422 sizeof(*key) + key->keylen);
3423 mwl8k_vif->wep_key_conf[idx].enabled = 1;
3427 action = MWL8K_ENCR_SET_KEY;
3429 case WLAN_CIPHER_SUITE_TKIP:
3430 keymlen = MAX_ENCR_KEY_LENGTH + 2 * MIC_KEY_LENGTH;
3432 case WLAN_CIPHER_SUITE_CCMP:
3433 keymlen = key->keylen;
3440 memcpy(cmd->key_material, key->key, keymlen);
3441 cmd->action = cpu_to_le32(action);
3443 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3450 static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw *hw,
3451 struct ieee80211_vif *vif,
3453 struct ieee80211_key_conf *key)
3455 struct mwl8k_cmd_set_key *cmd;
3457 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3459 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3463 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
3467 if (key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
3468 WLAN_CIPHER_SUITE_WEP104)
3469 mwl8k_vif->wep_key_conf[key->keyidx].enabled = 0;
3471 cmd->action = cpu_to_le32(MWL8K_ENCR_REMOVE_KEY);
3473 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3480 static int mwl8k_set_key(struct ieee80211_hw *hw,
3481 enum set_key_cmd cmd_param,
3482 struct ieee80211_vif *vif,
3483 struct ieee80211_sta *sta,
3484 struct ieee80211_key_conf *key)
3489 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3491 if (vif->type == NL80211_IFTYPE_STATION)
3495 addr = hw->wiphy->perm_addr;
3499 if (cmd_param == SET_KEY) {
3500 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
3501 rc = mwl8k_cmd_encryption_set_key(hw, vif, addr, key);
3505 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40)
3506 || (key->cipher == WLAN_CIPHER_SUITE_WEP104))
3507 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_WEP;
3509 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED;
3511 rc = mwl8k_cmd_update_encryption_enable(hw, vif, addr,
3516 mwl8k_vif->is_hw_crypto_enabled = true;
3519 rc = mwl8k_cmd_encryption_remove_key(hw, vif, addr, key);
3524 mwl8k_vif->is_hw_crypto_enabled = false;
3534 struct ewc_ht_info {
3540 struct peer_capability_info {
3541 /* Peer type - AP vs. STA. */
3544 /* Basic 802.11 capabilities from assoc resp. */
3547 /* Set if peer supports 802.11n high throughput (HT). */
3550 /* Valid if HT is supported. */
3552 __u8 extended_ht_caps;
3553 struct ewc_ht_info ewc_info;
3555 /* Legacy rate table. Intersection of our rates and peer rates. */
3556 __u8 legacy_rates[12];
3558 /* HT rate table. Intersection of our rates and peer rates. */
3562 /* If set, interoperability mode, no proprietary extensions. */
3566 __le16 amsdu_enabled;
3569 struct mwl8k_cmd_update_stadb {
3570 struct mwl8k_cmd_pkt header;
3572 /* See STADB_ACTION_TYPE */
3575 /* Peer MAC address */
3576 __u8 peer_addr[ETH_ALEN];
3580 /* Peer info - valid during add/update. */
3581 struct peer_capability_info peer_info;
3584 #define MWL8K_STA_DB_MODIFY_ENTRY 1
3585 #define MWL8K_STA_DB_DEL_ENTRY 2
3587 /* Peer Entry flags - used to define the type of the peer node */
3588 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
3590 static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw,
3591 struct ieee80211_vif *vif,
3592 struct ieee80211_sta *sta)
3594 struct mwl8k_cmd_update_stadb *cmd;
3595 struct peer_capability_info *p;
3599 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3603 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
3604 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3605 cmd->action = cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY);
3606 memcpy(cmd->peer_addr, sta->addr, ETH_ALEN);
3608 p = &cmd->peer_info;
3609 p->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT;
3610 p->basic_caps = cpu_to_le16(vif->bss_conf.assoc_capability);
3611 p->ht_support = sta->ht_cap.ht_supported;
3612 p->ht_caps = cpu_to_le16(sta->ht_cap.cap);
3613 p->extended_ht_caps = (sta->ht_cap.ampdu_factor & 3) |
3614 ((sta->ht_cap.ampdu_density & 7) << 2);
3615 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ)
3616 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
3618 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
3619 legacy_rate_mask_to_array(p->legacy_rates, rates);
3620 memcpy(p->ht_rates, sta->ht_cap.mcs.rx_mask, 16);
3622 p->amsdu_enabled = 0;
3624 rc = mwl8k_post_cmd(hw, &cmd->header);
3627 return rc ? rc : p->station_id;
3630 static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw *hw,
3631 struct ieee80211_vif *vif, u8 *addr)
3633 struct mwl8k_cmd_update_stadb *cmd;
3636 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3640 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
3641 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3642 cmd->action = cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY);
3643 memcpy(cmd->peer_addr, addr, ETH_ALEN);
3645 rc = mwl8k_post_cmd(hw, &cmd->header);
3653 * Interrupt handling.
3655 static irqreturn_t mwl8k_interrupt(int irq, void *dev_id)
3657 struct ieee80211_hw *hw = dev_id;
3658 struct mwl8k_priv *priv = hw->priv;
3661 status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
3665 if (status & MWL8K_A2H_INT_TX_DONE) {
3666 status &= ~MWL8K_A2H_INT_TX_DONE;
3667 tasklet_schedule(&priv->poll_tx_task);
3670 if (status & MWL8K_A2H_INT_RX_READY) {
3671 status &= ~MWL8K_A2H_INT_RX_READY;
3672 tasklet_schedule(&priv->poll_rx_task);
3676 iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
3678 if (status & MWL8K_A2H_INT_OPC_DONE) {
3679 if (priv->hostcmd_wait != NULL)
3680 complete(priv->hostcmd_wait);
3683 if (status & MWL8K_A2H_INT_QUEUE_EMPTY) {
3684 if (!mutex_is_locked(&priv->fw_mutex) &&
3685 priv->radio_on && priv->pending_tx_pkts)
3686 mwl8k_tx_start(priv);
3692 static void mwl8k_tx_poll(unsigned long data)
3694 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
3695 struct mwl8k_priv *priv = hw->priv;
3701 spin_lock_bh(&priv->tx_lock);
3703 for (i = 0; i < MWL8K_TX_QUEUES; i++)
3704 limit -= mwl8k_txq_reclaim(hw, i, limit, 0);
3706 if (!priv->pending_tx_pkts && priv->tx_wait != NULL) {
3707 complete(priv->tx_wait);
3708 priv->tx_wait = NULL;
3711 spin_unlock_bh(&priv->tx_lock);
3714 writel(~MWL8K_A2H_INT_TX_DONE,
3715 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
3717 tasklet_schedule(&priv->poll_tx_task);
3721 static void mwl8k_rx_poll(unsigned long data)
3723 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
3724 struct mwl8k_priv *priv = hw->priv;
3728 limit -= rxq_process(hw, 0, limit);
3729 limit -= rxq_refill(hw, 0, limit);
3732 writel(~MWL8K_A2H_INT_RX_READY,
3733 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
3735 tasklet_schedule(&priv->poll_rx_task);
3741 * Core driver operations.
3743 static void mwl8k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
3745 struct mwl8k_priv *priv = hw->priv;
3746 int index = skb_get_queue_mapping(skb);
3748 if (!priv->radio_on) {
3749 wiphy_debug(hw->wiphy,
3750 "dropped TX frame since radio disabled\n");
3755 mwl8k_txq_xmit(hw, index, skb);
3758 static int mwl8k_start(struct ieee80211_hw *hw)
3760 struct mwl8k_priv *priv = hw->priv;
3763 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
3764 IRQF_SHARED, MWL8K_NAME, hw);
3766 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
3770 /* Enable TX reclaim and RX tasklets. */
3771 tasklet_enable(&priv->poll_tx_task);
3772 tasklet_enable(&priv->poll_rx_task);
3774 /* Enable interrupts */
3775 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
3777 rc = mwl8k_fw_lock(hw);
3779 rc = mwl8k_cmd_radio_enable(hw);
3783 rc = mwl8k_cmd_enable_sniffer(hw, 0);
3786 rc = mwl8k_cmd_set_pre_scan(hw);
3789 rc = mwl8k_cmd_set_post_scan(hw,
3790 "\x00\x00\x00\x00\x00\x00");
3794 rc = mwl8k_cmd_set_rateadapt_mode(hw, 0);
3797 rc = mwl8k_cmd_set_wmm_mode(hw, 0);
3799 mwl8k_fw_unlock(hw);
3803 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
3804 free_irq(priv->pdev->irq, hw);
3805 tasklet_disable(&priv->poll_tx_task);
3806 tasklet_disable(&priv->poll_rx_task);
3812 static void mwl8k_stop(struct ieee80211_hw *hw)
3814 struct mwl8k_priv *priv = hw->priv;
3817 mwl8k_cmd_radio_disable(hw);
3819 ieee80211_stop_queues(hw);
3821 /* Disable interrupts */
3822 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
3823 free_irq(priv->pdev->irq, hw);
3825 /* Stop finalize join worker */
3826 cancel_work_sync(&priv->finalize_join_worker);
3827 if (priv->beacon_skb != NULL)
3828 dev_kfree_skb(priv->beacon_skb);
3830 /* Stop TX reclaim and RX tasklets. */
3831 tasklet_disable(&priv->poll_tx_task);
3832 tasklet_disable(&priv->poll_rx_task);
3834 /* Return all skbs to mac80211 */
3835 for (i = 0; i < MWL8K_TX_QUEUES; i++)
3836 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
3839 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image);
3841 static int mwl8k_add_interface(struct ieee80211_hw *hw,
3842 struct ieee80211_vif *vif)
3844 struct mwl8k_priv *priv = hw->priv;
3845 struct mwl8k_vif *mwl8k_vif;
3846 u32 macids_supported;
3848 struct mwl8k_device_info *di;
3851 * Reject interface creation if sniffer mode is active, as
3852 * STA operation is mutually exclusive with hardware sniffer
3853 * mode. (Sniffer mode is only used on STA firmware.)
3855 if (priv->sniffer_enabled) {
3856 wiphy_info(hw->wiphy,
3857 "unable to create STA interface because sniffer mode is enabled\n");
3861 di = priv->device_info;
3862 switch (vif->type) {
3863 case NL80211_IFTYPE_AP:
3864 if (!priv->ap_fw && di->fw_image_ap) {
3865 /* we must load the ap fw to meet this request */
3866 if (!list_empty(&priv->vif_list))
3868 rc = mwl8k_reload_firmware(hw, di->fw_image_ap);
3872 macids_supported = priv->ap_macids_supported;
3874 case NL80211_IFTYPE_STATION:
3875 if (priv->ap_fw && di->fw_image_sta) {
3876 /* we must load the sta fw to meet this request */
3877 if (!list_empty(&priv->vif_list))
3879 rc = mwl8k_reload_firmware(hw, di->fw_image_sta);
3883 macids_supported = priv->sta_macids_supported;
3889 macid = ffs(macids_supported & ~priv->macids_used);
3893 /* Setup driver private area. */
3894 mwl8k_vif = MWL8K_VIF(vif);
3895 memset(mwl8k_vif, 0, sizeof(*mwl8k_vif));
3896 mwl8k_vif->vif = vif;
3897 mwl8k_vif->macid = macid;
3898 mwl8k_vif->seqno = 0;
3899 memcpy(mwl8k_vif->bssid, vif->addr, ETH_ALEN);
3900 mwl8k_vif->is_hw_crypto_enabled = false;
3902 /* Set the mac address. */
3903 mwl8k_cmd_set_mac_addr(hw, vif, vif->addr);
3906 mwl8k_cmd_set_new_stn_add_self(hw, vif);
3908 priv->macids_used |= 1 << mwl8k_vif->macid;
3909 list_add_tail(&mwl8k_vif->list, &priv->vif_list);
3914 static void mwl8k_remove_interface(struct ieee80211_hw *hw,
3915 struct ieee80211_vif *vif)
3917 struct mwl8k_priv *priv = hw->priv;
3918 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3921 mwl8k_cmd_set_new_stn_del(hw, vif, vif->addr);
3923 mwl8k_cmd_set_mac_addr(hw, vif, "\x00\x00\x00\x00\x00\x00");
3925 priv->macids_used &= ~(1 << mwl8k_vif->macid);
3926 list_del(&mwl8k_vif->list);
3929 static int mwl8k_config(struct ieee80211_hw *hw, u32 changed)
3931 struct ieee80211_conf *conf = &hw->conf;
3932 struct mwl8k_priv *priv = hw->priv;
3935 if (conf->flags & IEEE80211_CONF_IDLE) {
3936 mwl8k_cmd_radio_disable(hw);
3940 rc = mwl8k_fw_lock(hw);
3944 rc = mwl8k_cmd_radio_enable(hw);
3948 rc = mwl8k_cmd_set_rf_channel(hw, conf);
3952 if (conf->power_level > 18)
3953 conf->power_level = 18;
3956 rc = mwl8k_cmd_tx_power(hw, conf, conf->power_level);
3960 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_RX, 0x3);
3962 wiphy_warn(hw->wiphy, "failed to set # of RX antennas");
3963 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_TX, 0x7);
3965 wiphy_warn(hw->wiphy, "failed to set # of TX antennas");
3968 rc = mwl8k_cmd_rf_tx_power(hw, conf->power_level);
3971 rc = mwl8k_cmd_mimo_config(hw, 0x7, 0x7);
3975 mwl8k_fw_unlock(hw);
3981 mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3982 struct ieee80211_bss_conf *info, u32 changed)
3984 struct mwl8k_priv *priv = hw->priv;
3985 u32 ap_legacy_rates;
3986 u8 ap_mcs_rates[16];
3989 if (mwl8k_fw_lock(hw))
3993 * No need to capture a beacon if we're no longer associated.
3995 if ((changed & BSS_CHANGED_ASSOC) && !vif->bss_conf.assoc)
3996 priv->capture_beacon = false;
3999 * Get the AP's legacy and MCS rates.
4001 if (vif->bss_conf.assoc) {
4002 struct ieee80211_sta *ap;
4006 ap = ieee80211_find_sta(vif, vif->bss_conf.bssid);
4012 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ) {
4013 ap_legacy_rates = ap->supp_rates[IEEE80211_BAND_2GHZ];
4016 ap->supp_rates[IEEE80211_BAND_5GHZ] << 5;
4018 memcpy(ap_mcs_rates, ap->ht_cap.mcs.rx_mask, 16);
4023 if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc) {
4024 rc = mwl8k_cmd_set_rate(hw, vif, ap_legacy_rates, ap_mcs_rates);
4028 rc = mwl8k_cmd_use_fixed_rate_sta(hw);
4033 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
4034 rc = mwl8k_set_radio_preamble(hw,
4035 vif->bss_conf.use_short_preamble);
4040 if (changed & BSS_CHANGED_ERP_SLOT) {
4041 rc = mwl8k_cmd_set_slot(hw, vif->bss_conf.use_short_slot);
4046 if (vif->bss_conf.assoc &&
4047 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_ERP_CTS_PROT |
4049 rc = mwl8k_cmd_set_aid(hw, vif, ap_legacy_rates);
4054 if (vif->bss_conf.assoc &&
4055 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INT))) {
4057 * Finalize the join. Tell rx handler to process
4058 * next beacon from our BSSID.
4060 memcpy(priv->capture_bssid, vif->bss_conf.bssid, ETH_ALEN);
4061 priv->capture_beacon = true;
4065 mwl8k_fw_unlock(hw);
4069 mwl8k_bss_info_changed_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4070 struct ieee80211_bss_conf *info, u32 changed)
4074 if (mwl8k_fw_lock(hw))
4077 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
4078 rc = mwl8k_set_radio_preamble(hw,
4079 vif->bss_conf.use_short_preamble);
4084 if (changed & BSS_CHANGED_BASIC_RATES) {
4089 * Use lowest supported basic rate for multicasts
4090 * and management frames (such as probe responses --
4091 * beacons will always go out at 1 Mb/s).
4093 idx = ffs(vif->bss_conf.basic_rates);
4097 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ)
4098 rate = mwl8k_rates_24[idx].hw_value;
4100 rate = mwl8k_rates_50[idx].hw_value;
4102 mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate);
4105 if (changed & (BSS_CHANGED_BEACON_INT | BSS_CHANGED_BEACON)) {
4106 struct sk_buff *skb;
4108 skb = ieee80211_beacon_get(hw, vif);
4110 mwl8k_cmd_set_beacon(hw, vif, skb->data, skb->len);
4115 if (changed & BSS_CHANGED_BEACON_ENABLED)
4116 mwl8k_cmd_bss_start(hw, vif, info->enable_beacon);
4119 mwl8k_fw_unlock(hw);
4123 mwl8k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4124 struct ieee80211_bss_conf *info, u32 changed)
4126 struct mwl8k_priv *priv = hw->priv;
4129 mwl8k_bss_info_changed_sta(hw, vif, info, changed);
4131 mwl8k_bss_info_changed_ap(hw, vif, info, changed);
4134 static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw,
4135 struct netdev_hw_addr_list *mc_list)
4137 struct mwl8k_cmd_pkt *cmd;
4140 * Synthesize and return a command packet that programs the
4141 * hardware multicast address filter. At this point we don't
4142 * know whether FIF_ALLMULTI is being requested, but if it is,
4143 * we'll end up throwing this packet away and creating a new
4144 * one in mwl8k_configure_filter().
4146 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_list);
4148 return (unsigned long)cmd;
4152 mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw,
4153 unsigned int changed_flags,
4154 unsigned int *total_flags)
4156 struct mwl8k_priv *priv = hw->priv;
4159 * Hardware sniffer mode is mutually exclusive with STA
4160 * operation, so refuse to enable sniffer mode if a STA
4161 * interface is active.
4163 if (!list_empty(&priv->vif_list)) {
4164 if (net_ratelimit())
4165 wiphy_info(hw->wiphy,
4166 "not enabling sniffer mode because STA interface is active\n");
4170 if (!priv->sniffer_enabled) {
4171 if (mwl8k_cmd_enable_sniffer(hw, 1))
4173 priv->sniffer_enabled = true;
4176 *total_flags &= FIF_PROMISC_IN_BSS | FIF_ALLMULTI |
4177 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL |
4183 static struct mwl8k_vif *mwl8k_first_vif(struct mwl8k_priv *priv)
4185 if (!list_empty(&priv->vif_list))
4186 return list_entry(priv->vif_list.next, struct mwl8k_vif, list);
4191 static void mwl8k_configure_filter(struct ieee80211_hw *hw,
4192 unsigned int changed_flags,
4193 unsigned int *total_flags,
4196 struct mwl8k_priv *priv = hw->priv;
4197 struct mwl8k_cmd_pkt *cmd = (void *)(unsigned long)multicast;
4200 * AP firmware doesn't allow fine-grained control over
4201 * the receive filter.
4204 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
4210 * Enable hardware sniffer mode if FIF_CONTROL or
4211 * FIF_OTHER_BSS is requested.
4213 if (*total_flags & (FIF_CONTROL | FIF_OTHER_BSS) &&
4214 mwl8k_configure_filter_sniffer(hw, changed_flags, total_flags)) {
4219 /* Clear unsupported feature flags */
4220 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
4222 if (mwl8k_fw_lock(hw)) {
4227 if (priv->sniffer_enabled) {
4228 mwl8k_cmd_enable_sniffer(hw, 0);
4229 priv->sniffer_enabled = false;
4232 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
4233 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
4235 * Disable the BSS filter.
4237 mwl8k_cmd_set_pre_scan(hw);
4239 struct mwl8k_vif *mwl8k_vif;
4243 * Enable the BSS filter.
4245 * If there is an active STA interface, use that
4246 * interface's BSSID, otherwise use a dummy one
4247 * (where the OUI part needs to be nonzero for
4248 * the BSSID to be accepted by POST_SCAN).
4250 mwl8k_vif = mwl8k_first_vif(priv);
4251 if (mwl8k_vif != NULL)
4252 bssid = mwl8k_vif->vif->bss_conf.bssid;
4254 bssid = "\x01\x00\x00\x00\x00\x00";
4256 mwl8k_cmd_set_post_scan(hw, bssid);
4261 * If FIF_ALLMULTI is being requested, throw away the command
4262 * packet that ->prepare_multicast() built and replace it with
4263 * a command packet that enables reception of all multicast
4266 if (*total_flags & FIF_ALLMULTI) {
4268 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, NULL);
4272 mwl8k_post_cmd(hw, cmd);
4276 mwl8k_fw_unlock(hw);
4279 static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
4281 return mwl8k_cmd_set_rts_threshold(hw, value);
4284 static int mwl8k_sta_remove(struct ieee80211_hw *hw,
4285 struct ieee80211_vif *vif,
4286 struct ieee80211_sta *sta)
4288 struct mwl8k_priv *priv = hw->priv;
4291 return mwl8k_cmd_set_new_stn_del(hw, vif, sta->addr);
4293 return mwl8k_cmd_update_stadb_del(hw, vif, sta->addr);
4296 static int mwl8k_sta_add(struct ieee80211_hw *hw,
4297 struct ieee80211_vif *vif,
4298 struct ieee80211_sta *sta)
4300 struct mwl8k_priv *priv = hw->priv;
4303 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4304 struct ieee80211_key_conf *key;
4307 ret = mwl8k_cmd_update_stadb_add(hw, vif, sta);
4309 MWL8K_STA(sta)->peer_id = ret;
4314 ret = mwl8k_cmd_set_new_stn_add(hw, vif, sta);
4317 for (i = 0; i < NUM_WEP_KEYS; i++) {
4318 key = IEEE80211_KEY_CONF(mwl8k_vif->wep_key_conf[i].key);
4319 if (mwl8k_vif->wep_key_conf[i].enabled)
4320 mwl8k_set_key(hw, SET_KEY, vif, sta, key);
4325 static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue,
4326 const struct ieee80211_tx_queue_params *params)
4328 struct mwl8k_priv *priv = hw->priv;
4331 rc = mwl8k_fw_lock(hw);
4333 BUG_ON(queue > MWL8K_TX_QUEUES - 1);
4334 memcpy(&priv->wmm_params[queue], params, sizeof(*params));
4336 if (!priv->wmm_enabled)
4337 rc = mwl8k_cmd_set_wmm_mode(hw, 1);
4340 int q = MWL8K_TX_QUEUES - 1 - queue;
4341 rc = mwl8k_cmd_set_edca_params(hw, q,
4348 mwl8k_fw_unlock(hw);
4354 static int mwl8k_get_stats(struct ieee80211_hw *hw,
4355 struct ieee80211_low_level_stats *stats)
4357 return mwl8k_cmd_get_stat(hw, stats);
4360 static int mwl8k_get_survey(struct ieee80211_hw *hw, int idx,
4361 struct survey_info *survey)
4363 struct mwl8k_priv *priv = hw->priv;
4364 struct ieee80211_conf *conf = &hw->conf;
4369 survey->channel = conf->channel;
4370 survey->filled = SURVEY_INFO_NOISE_DBM;
4371 survey->noise = priv->noise;
4377 mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4378 enum ieee80211_ampdu_mlme_action action,
4379 struct ieee80211_sta *sta, u16 tid, u16 *ssn,
4383 case IEEE80211_AMPDU_RX_START:
4384 case IEEE80211_AMPDU_RX_STOP:
4385 if (!(hw->flags & IEEE80211_HW_AMPDU_AGGREGATION))
4393 static const struct ieee80211_ops mwl8k_ops = {
4395 .start = mwl8k_start,
4397 .add_interface = mwl8k_add_interface,
4398 .remove_interface = mwl8k_remove_interface,
4399 .config = mwl8k_config,
4400 .bss_info_changed = mwl8k_bss_info_changed,
4401 .prepare_multicast = mwl8k_prepare_multicast,
4402 .configure_filter = mwl8k_configure_filter,
4403 .set_key = mwl8k_set_key,
4404 .set_rts_threshold = mwl8k_set_rts_threshold,
4405 .sta_add = mwl8k_sta_add,
4406 .sta_remove = mwl8k_sta_remove,
4407 .conf_tx = mwl8k_conf_tx,
4408 .get_stats = mwl8k_get_stats,
4409 .get_survey = mwl8k_get_survey,
4410 .ampdu_action = mwl8k_ampdu_action,
4413 static void mwl8k_finalize_join_worker(struct work_struct *work)
4415 struct mwl8k_priv *priv =
4416 container_of(work, struct mwl8k_priv, finalize_join_worker);
4417 struct sk_buff *skb = priv->beacon_skb;
4418 struct ieee80211_mgmt *mgmt = (void *)skb->data;
4419 int len = skb->len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
4420 const u8 *tim = cfg80211_find_ie(WLAN_EID_TIM,
4421 mgmt->u.beacon.variable, len);
4422 int dtim_period = 1;
4424 if (tim && tim[1] >= 2)
4425 dtim_period = tim[3];
4427 mwl8k_cmd_finalize_join(priv->hw, skb->data, skb->len, dtim_period);
4430 priv->beacon_skb = NULL;
4439 #define MWL8K_8366_AP_FW_API 1
4440 #define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw"
4441 #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
4443 static struct mwl8k_device_info mwl8k_info_tbl[] __devinitdata = {
4445 .part_name = "88w8363",
4446 .helper_image = "mwl8k/helper_8363.fw",
4447 .fw_image_sta = "mwl8k/fmimage_8363.fw",
4450 .part_name = "88w8687",
4451 .helper_image = "mwl8k/helper_8687.fw",
4452 .fw_image_sta = "mwl8k/fmimage_8687.fw",
4455 .part_name = "88w8366",
4456 .helper_image = "mwl8k/helper_8366.fw",
4457 .fw_image_sta = "mwl8k/fmimage_8366.fw",
4458 .fw_image_ap = MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API),
4459 .fw_api_ap = MWL8K_8366_AP_FW_API,
4460 .ap_rxd_ops = &rxd_8366_ap_ops,
4464 MODULE_FIRMWARE("mwl8k/helper_8363.fw");
4465 MODULE_FIRMWARE("mwl8k/fmimage_8363.fw");
4466 MODULE_FIRMWARE("mwl8k/helper_8687.fw");
4467 MODULE_FIRMWARE("mwl8k/fmimage_8687.fw");
4468 MODULE_FIRMWARE("mwl8k/helper_8366.fw");
4469 MODULE_FIRMWARE("mwl8k/fmimage_8366.fw");
4470 MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API));
4472 static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = {
4473 { PCI_VDEVICE(MARVELL, 0x2a0a), .driver_data = MWL8363, },
4474 { PCI_VDEVICE(MARVELL, 0x2a0c), .driver_data = MWL8363, },
4475 { PCI_VDEVICE(MARVELL, 0x2a24), .driver_data = MWL8363, },
4476 { PCI_VDEVICE(MARVELL, 0x2a2b), .driver_data = MWL8687, },
4477 { PCI_VDEVICE(MARVELL, 0x2a30), .driver_data = MWL8687, },
4478 { PCI_VDEVICE(MARVELL, 0x2a40), .driver_data = MWL8366, },
4479 { PCI_VDEVICE(MARVELL, 0x2a43), .driver_data = MWL8366, },
4482 MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table);
4484 static int mwl8k_request_alt_fw(struct mwl8k_priv *priv)
4487 printk(KERN_ERR "%s: Error requesting preferred fw %s.\n"
4488 "Trying alternative firmware %s\n", pci_name(priv->pdev),
4489 priv->fw_pref, priv->fw_alt);
4490 rc = mwl8k_request_fw(priv, priv->fw_alt, &priv->fw_ucode, true);
4492 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
4493 pci_name(priv->pdev), priv->fw_alt);
4499 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv);
4500 static void mwl8k_fw_state_machine(const struct firmware *fw, void *context)
4502 struct mwl8k_priv *priv = context;
4503 struct mwl8k_device_info *di = priv->device_info;
4506 switch (priv->fw_state) {
4509 printk(KERN_ERR "%s: Error requesting helper fw %s\n",
4510 pci_name(priv->pdev), di->helper_image);
4513 priv->fw_helper = fw;
4514 rc = mwl8k_request_fw(priv, priv->fw_pref, &priv->fw_ucode,
4516 if (rc && priv->fw_alt) {
4517 rc = mwl8k_request_alt_fw(priv);
4520 priv->fw_state = FW_STATE_LOADING_ALT;
4524 priv->fw_state = FW_STATE_LOADING_PREF;
4527 case FW_STATE_LOADING_PREF:
4530 rc = mwl8k_request_alt_fw(priv);
4533 priv->fw_state = FW_STATE_LOADING_ALT;
4537 priv->fw_ucode = fw;
4538 rc = mwl8k_firmware_load_success(priv);
4542 complete(&priv->firmware_loading_complete);
4546 case FW_STATE_LOADING_ALT:
4548 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
4549 pci_name(priv->pdev), di->helper_image);
4552 priv->fw_ucode = fw;
4553 rc = mwl8k_firmware_load_success(priv);
4557 complete(&priv->firmware_loading_complete);
4561 printk(KERN_ERR "%s: Unexpected firmware loading state: %d\n",
4562 MWL8K_NAME, priv->fw_state);
4569 priv->fw_state = FW_STATE_ERROR;
4570 complete(&priv->firmware_loading_complete);
4571 device_release_driver(&priv->pdev->dev);
4572 mwl8k_release_firmware(priv);
4575 static int mwl8k_init_firmware(struct ieee80211_hw *hw, char *fw_image,
4578 struct mwl8k_priv *priv = hw->priv;
4581 /* Reset firmware and hardware */
4582 mwl8k_hw_reset(priv);
4584 /* Ask userland hotplug daemon for the device firmware */
4585 rc = mwl8k_request_firmware(priv, fw_image, nowait);
4587 wiphy_err(hw->wiphy, "Firmware files not found\n");
4594 /* Load firmware into hardware */
4595 rc = mwl8k_load_firmware(hw);
4597 wiphy_err(hw->wiphy, "Cannot start firmware\n");
4599 /* Reclaim memory once firmware is successfully loaded */
4600 mwl8k_release_firmware(priv);
4605 /* initialize hw after successfully loading a firmware image */
4606 static int mwl8k_probe_hw(struct ieee80211_hw *hw)
4608 struct mwl8k_priv *priv = hw->priv;
4613 priv->rxd_ops = priv->device_info->ap_rxd_ops;
4614 if (priv->rxd_ops == NULL) {
4615 wiphy_err(hw->wiphy,
4616 "Driver does not have AP firmware image support for this hardware\n");
4617 goto err_stop_firmware;
4620 priv->rxd_ops = &rxd_sta_ops;
4623 priv->sniffer_enabled = false;
4624 priv->wmm_enabled = false;
4625 priv->pending_tx_pkts = 0;
4627 rc = mwl8k_rxq_init(hw, 0);
4629 goto err_stop_firmware;
4630 rxq_refill(hw, 0, INT_MAX);
4632 for (i = 0; i < MWL8K_TX_QUEUES; i++) {
4633 rc = mwl8k_txq_init(hw, i);
4635 goto err_free_queues;
4638 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4639 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4640 iowrite32(MWL8K_A2H_INT_TX_DONE | MWL8K_A2H_INT_RX_READY,
4641 priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL);
4642 iowrite32(0xffffffff, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
4644 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
4645 IRQF_SHARED, MWL8K_NAME, hw);
4647 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
4648 goto err_free_queues;
4652 * Temporarily enable interrupts. Initial firmware host
4653 * commands use interrupts and avoid polling. Disable
4654 * interrupts when done.
4656 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4658 /* Get config data, mac addrs etc */
4660 rc = mwl8k_cmd_get_hw_spec_ap(hw);
4662 rc = mwl8k_cmd_set_hw_spec(hw);
4664 rc = mwl8k_cmd_get_hw_spec_sta(hw);
4667 wiphy_err(hw->wiphy, "Cannot initialise firmware\n");
4671 /* Turn radio off */
4672 rc = mwl8k_cmd_radio_disable(hw);
4674 wiphy_err(hw->wiphy, "Cannot disable\n");
4678 /* Clear MAC address */
4679 rc = mwl8k_cmd_set_mac_addr(hw, NULL, "\x00\x00\x00\x00\x00\x00");
4681 wiphy_err(hw->wiphy, "Cannot clear MAC address\n");
4685 /* Disable interrupts */
4686 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4687 free_irq(priv->pdev->irq, hw);
4689 wiphy_info(hw->wiphy, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
4690 priv->device_info->part_name,
4691 priv->hw_rev, hw->wiphy->perm_addr,
4692 priv->ap_fw ? "AP" : "STA",
4693 (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff,
4694 (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff);
4699 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4700 free_irq(priv->pdev->irq, hw);
4703 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4704 mwl8k_txq_deinit(hw, i);
4705 mwl8k_rxq_deinit(hw, 0);
4708 mwl8k_hw_reset(priv);
4714 * invoke mwl8k_reload_firmware to change the firmware image after the device
4715 * has already been registered
4717 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image)
4720 struct mwl8k_priv *priv = hw->priv;
4723 mwl8k_rxq_deinit(hw, 0);
4725 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4726 mwl8k_txq_deinit(hw, i);
4728 rc = mwl8k_init_firmware(hw, fw_image, false);
4732 rc = mwl8k_probe_hw(hw);
4736 rc = mwl8k_start(hw);
4740 rc = mwl8k_config(hw, ~0);
4744 for (i = 0; i < MWL8K_TX_QUEUES; i++) {
4745 rc = mwl8k_conf_tx(hw, i, &priv->wmm_params[i]);
4753 printk(KERN_WARNING "mwl8k: Failed to reload firmware image.\n");
4757 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv)
4759 struct ieee80211_hw *hw = priv->hw;
4762 rc = mwl8k_load_firmware(hw);
4763 mwl8k_release_firmware(priv);
4765 wiphy_err(hw->wiphy, "Cannot start firmware\n");
4770 * Extra headroom is the size of the required DMA header
4771 * minus the size of the smallest 802.11 frame (CTS frame).
4773 hw->extra_tx_headroom =
4774 sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts);
4776 hw->channel_change_time = 10;
4778 hw->queues = MWL8K_TX_QUEUES;
4780 /* Set rssi values to dBm */
4781 hw->flags |= IEEE80211_HW_SIGNAL_DBM | IEEE80211_HW_HAS_RATE_CONTROL;
4782 hw->vif_data_size = sizeof(struct mwl8k_vif);
4783 hw->sta_data_size = sizeof(struct mwl8k_sta);
4785 priv->macids_used = 0;
4786 INIT_LIST_HEAD(&priv->vif_list);
4788 /* Set default radio state and preamble */
4790 priv->radio_short_preamble = 0;
4792 /* Finalize join worker */
4793 INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker);
4795 /* TX reclaim and RX tasklets. */
4796 tasklet_init(&priv->poll_tx_task, mwl8k_tx_poll, (unsigned long)hw);
4797 tasklet_disable(&priv->poll_tx_task);
4798 tasklet_init(&priv->poll_rx_task, mwl8k_rx_poll, (unsigned long)hw);
4799 tasklet_disable(&priv->poll_rx_task);
4801 /* Power management cookie */
4802 priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma);
4803 if (priv->cookie == NULL)
4806 mutex_init(&priv->fw_mutex);
4807 priv->fw_mutex_owner = NULL;
4808 priv->fw_mutex_depth = 0;
4809 priv->hostcmd_wait = NULL;
4811 spin_lock_init(&priv->tx_lock);
4813 priv->tx_wait = NULL;
4815 rc = mwl8k_probe_hw(hw);
4817 goto err_free_cookie;
4819 hw->wiphy->interface_modes = 0;
4820 if (priv->ap_macids_supported || priv->device_info->fw_image_ap)
4821 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP);
4822 if (priv->sta_macids_supported || priv->device_info->fw_image_sta)
4823 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION);
4825 rc = ieee80211_register_hw(hw);
4827 wiphy_err(hw->wiphy, "Cannot register device\n");
4828 goto err_unprobe_hw;
4834 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4835 mwl8k_txq_deinit(hw, i);
4836 mwl8k_rxq_deinit(hw, 0);
4839 if (priv->cookie != NULL)
4840 pci_free_consistent(priv->pdev, 4,
4841 priv->cookie, priv->cookie_dma);
4845 static int __devinit mwl8k_probe(struct pci_dev *pdev,
4846 const struct pci_device_id *id)
4848 static int printed_version;
4849 struct ieee80211_hw *hw;
4850 struct mwl8k_priv *priv;
4851 struct mwl8k_device_info *di;
4854 if (!printed_version) {
4855 printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION);
4856 printed_version = 1;
4860 rc = pci_enable_device(pdev);
4862 printk(KERN_ERR "%s: Cannot enable new PCI device\n",
4867 rc = pci_request_regions(pdev, MWL8K_NAME);
4869 printk(KERN_ERR "%s: Cannot obtain PCI resources\n",
4871 goto err_disable_device;
4874 pci_set_master(pdev);
4877 hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops);
4879 printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME);
4884 SET_IEEE80211_DEV(hw, &pdev->dev);
4885 pci_set_drvdata(pdev, hw);
4890 priv->device_info = &mwl8k_info_tbl[id->driver_data];
4893 priv->sram = pci_iomap(pdev, 0, 0x10000);
4894 if (priv->sram == NULL) {
4895 wiphy_err(hw->wiphy, "Cannot map device SRAM\n");
4900 * If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
4901 * If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
4903 priv->regs = pci_iomap(pdev, 1, 0x10000);
4904 if (priv->regs == NULL) {
4905 priv->regs = pci_iomap(pdev, 2, 0x10000);
4906 if (priv->regs == NULL) {
4907 wiphy_err(hw->wiphy, "Cannot map device registers\n");
4913 * Choose the initial fw image depending on user input. If a second
4914 * image is available, make it the alternative image that will be
4915 * loaded if the first one fails.
4917 init_completion(&priv->firmware_loading_complete);
4918 di = priv->device_info;
4919 if (ap_mode_default && di->fw_image_ap) {
4920 priv->fw_pref = di->fw_image_ap;
4921 priv->fw_alt = di->fw_image_sta;
4922 } else if (!ap_mode_default && di->fw_image_sta) {
4923 priv->fw_pref = di->fw_image_sta;
4924 priv->fw_alt = di->fw_image_ap;
4925 } else if (ap_mode_default && !di->fw_image_ap && di->fw_image_sta) {
4926 printk(KERN_WARNING "AP fw is unavailable. Using STA fw.");
4927 priv->fw_pref = di->fw_image_sta;
4928 } else if (!ap_mode_default && !di->fw_image_sta && di->fw_image_ap) {
4929 printk(KERN_WARNING "STA fw is unavailable. Using AP fw.");
4930 priv->fw_pref = di->fw_image_ap;
4932 rc = mwl8k_init_firmware(hw, priv->fw_pref, true);
4934 goto err_stop_firmware;
4938 mwl8k_hw_reset(priv);
4941 if (priv->regs != NULL)
4942 pci_iounmap(pdev, priv->regs);
4944 if (priv->sram != NULL)
4945 pci_iounmap(pdev, priv->sram);
4947 pci_set_drvdata(pdev, NULL);
4948 ieee80211_free_hw(hw);
4951 pci_release_regions(pdev);
4954 pci_disable_device(pdev);
4959 static void __devexit mwl8k_shutdown(struct pci_dev *pdev)
4961 printk(KERN_ERR "===>%s(%u)\n", __func__, __LINE__);
4964 static void __devexit mwl8k_remove(struct pci_dev *pdev)
4966 struct ieee80211_hw *hw = pci_get_drvdata(pdev);
4967 struct mwl8k_priv *priv;
4974 wait_for_completion(&priv->firmware_loading_complete);
4976 if (priv->fw_state == FW_STATE_ERROR) {
4977 mwl8k_hw_reset(priv);
4981 ieee80211_stop_queues(hw);
4983 ieee80211_unregister_hw(hw);
4985 /* Remove TX reclaim and RX tasklets. */
4986 tasklet_kill(&priv->poll_tx_task);
4987 tasklet_kill(&priv->poll_rx_task);
4990 mwl8k_hw_reset(priv);
4992 /* Return all skbs to mac80211 */
4993 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4994 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
4996 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4997 mwl8k_txq_deinit(hw, i);
4999 mwl8k_rxq_deinit(hw, 0);
5001 pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma);
5004 pci_iounmap(pdev, priv->regs);
5005 pci_iounmap(pdev, priv->sram);
5006 pci_set_drvdata(pdev, NULL);
5007 ieee80211_free_hw(hw);
5008 pci_release_regions(pdev);
5009 pci_disable_device(pdev);
5012 static struct pci_driver mwl8k_driver = {
5014 .id_table = mwl8k_pci_id_table,
5015 .probe = mwl8k_probe,
5016 .remove = __devexit_p(mwl8k_remove),
5017 .shutdown = __devexit_p(mwl8k_shutdown),
5020 static int __init mwl8k_init(void)
5022 return pci_register_driver(&mwl8k_driver);
5025 static void __exit mwl8k_exit(void)
5027 pci_unregister_driver(&mwl8k_driver);
5030 module_init(mwl8k_init);
5031 module_exit(mwl8k_exit);
5033 MODULE_DESCRIPTION(MWL8K_DESC);
5034 MODULE_VERSION(MWL8K_VERSION);
5035 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
5036 MODULE_LICENSE("GPL");