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/interrupt.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 "0.13"
32 /* Module parameters */
33 static bool 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_BA_WATCHDOG (1 << 14)
67 #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11)
68 #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10)
69 #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7)
70 #define MWL8K_A2H_INT_RADIO_ON (1 << 6)
71 #define MWL8K_A2H_INT_RADIO_OFF (1 << 5)
72 #define MWL8K_A2H_INT_MAC_EVENT (1 << 3)
73 #define MWL8K_A2H_INT_OPC_DONE (1 << 2)
74 #define MWL8K_A2H_INT_RX_READY (1 << 1)
75 #define MWL8K_A2H_INT_TX_DONE (1 << 0)
77 /* HW micro second timer register
78 * located at offset 0xA600. This
79 * will be used to timestamp tx
83 #define MWL8K_HW_TIMER_REGISTER 0x0000a600
84 #define BBU_RXRDY_CNT_REG 0x0000a860
85 #define NOK_CCA_CNT_REG 0x0000a6a0
86 #define BBU_AVG_NOISE_VAL 0x67
88 #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \
89 MWL8K_A2H_INT_CHNL_SWITCHED | \
90 MWL8K_A2H_INT_QUEUE_EMPTY | \
91 MWL8K_A2H_INT_RADAR_DETECT | \
92 MWL8K_A2H_INT_RADIO_ON | \
93 MWL8K_A2H_INT_RADIO_OFF | \
94 MWL8K_A2H_INT_MAC_EVENT | \
95 MWL8K_A2H_INT_OPC_DONE | \
96 MWL8K_A2H_INT_RX_READY | \
97 MWL8K_A2H_INT_TX_DONE | \
98 MWL8K_A2H_INT_BA_WATCHDOG)
100 #define MWL8K_RX_QUEUES 1
101 #define MWL8K_TX_WMM_QUEUES 4
102 #define MWL8K_MAX_AMPDU_QUEUES 8
103 #define MWL8K_MAX_TX_QUEUES (MWL8K_TX_WMM_QUEUES + MWL8K_MAX_AMPDU_QUEUES)
104 #define mwl8k_tx_queues(priv) (MWL8K_TX_WMM_QUEUES + (priv)->num_ampdu_queues)
106 /* txpriorities are mapped with hw queues.
107 * Each hw queue has a txpriority.
109 #define TOTAL_HW_TX_QUEUES 8
111 /* Each HW queue can have one AMPDU stream.
112 * But, because one of the hw queue is reserved,
113 * maximum AMPDU queues that can be created are
114 * one short of total tx queues.
116 #define MWL8K_NUM_AMPDU_STREAMS (TOTAL_HW_TX_QUEUES - 1)
118 #define MWL8K_NUM_CHANS 18
122 void (*rxd_init)(void *rxd, dma_addr_t next_dma_addr);
123 void (*rxd_refill)(void *rxd, dma_addr_t addr, int len);
124 int (*rxd_process)(void *rxd, struct ieee80211_rx_status *status,
125 __le16 *qos, s8 *noise);
128 struct mwl8k_device_info {
133 struct rxd_ops *ap_rxd_ops;
137 struct mwl8k_rx_queue {
140 /* hw receives here */
143 /* refill descs here */
150 DEFINE_DMA_UNMAP_ADDR(dma);
154 struct mwl8k_tx_queue {
155 /* hw transmits here */
158 /* sw appends here */
162 struct mwl8k_tx_desc *txd;
164 struct sk_buff **skb;
170 AMPDU_STREAM_IN_PROGRESS,
174 struct mwl8k_ampdu_stream {
175 struct ieee80211_sta *sta;
182 struct ieee80211_hw *hw;
183 struct pci_dev *pdev;
186 struct mwl8k_device_info *device_info;
192 const struct firmware *fw_helper;
193 const struct firmware *fw_ucode;
195 /* hardware/firmware parameters */
197 struct rxd_ops *rxd_ops;
198 struct ieee80211_supported_band band_24;
199 struct ieee80211_channel channels_24[14];
200 struct ieee80211_rate rates_24[13];
201 struct ieee80211_supported_band band_50;
202 struct ieee80211_channel channels_50[4];
203 struct ieee80211_rate rates_50[8];
204 u32 ap_macids_supported;
205 u32 sta_macids_supported;
207 /* Ampdu stream information */
209 spinlock_t stream_lock;
210 struct mwl8k_ampdu_stream ampdu[MWL8K_MAX_AMPDU_QUEUES];
211 struct work_struct watchdog_ba_handle;
213 /* firmware access */
214 struct mutex fw_mutex;
215 struct task_struct *fw_mutex_owner;
216 struct task_struct *hw_restart_owner;
218 struct completion *hostcmd_wait;
220 atomic_t watchdog_event_pending;
222 /* lock held over TX and TX reap */
225 /* TX quiesce completion, protected by fw_mutex and tx_lock */
226 struct completion *tx_wait;
228 /* List of interfaces. */
230 struct list_head vif_list;
232 /* power management status cookie from firmware */
234 dma_addr_t cookie_dma;
242 * Running count of TX packets in flight, to avoid
243 * iterating over the transmit rings each time.
247 struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES];
248 struct mwl8k_tx_queue txq[MWL8K_MAX_TX_QUEUES];
249 u32 txq_offset[MWL8K_MAX_TX_QUEUES];
252 bool radio_short_preamble;
253 bool sniffer_enabled;
256 /* XXX need to convert this to handle multiple interfaces */
258 u8 capture_bssid[ETH_ALEN];
259 struct sk_buff *beacon_skb;
262 * This FJ worker has to be global as it is scheduled from the
263 * RX handler. At this point we don't know which interface it
264 * belongs to until the list of bssids waiting to complete join
267 struct work_struct finalize_join_worker;
269 /* Tasklet to perform TX reclaim. */
270 struct tasklet_struct poll_tx_task;
272 /* Tasklet to perform RX. */
273 struct tasklet_struct poll_rx_task;
275 /* Most recently reported noise in dBm */
279 * preserve the queue configurations so they can be restored if/when
280 * the firmware image is swapped.
282 struct ieee80211_tx_queue_params wmm_params[MWL8K_TX_WMM_QUEUES];
284 /* To perform the task of reloading the firmware */
285 struct work_struct fw_reload;
286 bool hw_restart_in_progress;
288 /* async firmware loading state */
293 struct completion firmware_loading_complete;
295 /* bitmap of running BSSes */
300 struct ieee80211_channel *acs_chan;
301 unsigned long channel_time;
302 struct survey_info survey[MWL8K_NUM_CHANS];
305 #define MAX_WEP_KEY_LEN 13
306 #define NUM_WEP_KEYS 4
308 /* Per interface specific private data */
310 struct list_head list;
311 struct ieee80211_vif *vif;
313 /* Firmware macid for this vif. */
316 /* Non AMPDU sequence number assigned by driver. */
322 u8 key[sizeof(struct ieee80211_key_conf) + MAX_WEP_KEY_LEN];
323 } wep_key_conf[NUM_WEP_KEYS];
328 /* A flag to indicate is HW crypto is enabled for this bssid */
329 bool is_hw_crypto_enabled;
331 #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv))
332 #define IEEE80211_KEY_CONF(_u8) ((struct ieee80211_key_conf *)(_u8))
334 struct tx_traffic_info {
339 #define MWL8K_MAX_TID 8
341 /* Index into station database. Returned by UPDATE_STADB. */
344 struct tx_traffic_info tx_stats[MWL8K_MAX_TID];
346 #define MWL8K_STA(_sta) ((struct mwl8k_sta *)&((_sta)->drv_priv))
348 static const struct ieee80211_channel mwl8k_channels_24[] = {
349 { .band = NL80211_BAND_2GHZ, .center_freq = 2412, .hw_value = 1, },
350 { .band = NL80211_BAND_2GHZ, .center_freq = 2417, .hw_value = 2, },
351 { .band = NL80211_BAND_2GHZ, .center_freq = 2422, .hw_value = 3, },
352 { .band = NL80211_BAND_2GHZ, .center_freq = 2427, .hw_value = 4, },
353 { .band = NL80211_BAND_2GHZ, .center_freq = 2432, .hw_value = 5, },
354 { .band = NL80211_BAND_2GHZ, .center_freq = 2437, .hw_value = 6, },
355 { .band = NL80211_BAND_2GHZ, .center_freq = 2442, .hw_value = 7, },
356 { .band = NL80211_BAND_2GHZ, .center_freq = 2447, .hw_value = 8, },
357 { .band = NL80211_BAND_2GHZ, .center_freq = 2452, .hw_value = 9, },
358 { .band = NL80211_BAND_2GHZ, .center_freq = 2457, .hw_value = 10, },
359 { .band = NL80211_BAND_2GHZ, .center_freq = 2462, .hw_value = 11, },
360 { .band = NL80211_BAND_2GHZ, .center_freq = 2467, .hw_value = 12, },
361 { .band = NL80211_BAND_2GHZ, .center_freq = 2472, .hw_value = 13, },
362 { .band = NL80211_BAND_2GHZ, .center_freq = 2484, .hw_value = 14, },
365 static const struct ieee80211_rate mwl8k_rates_24[] = {
366 { .bitrate = 10, .hw_value = 2, },
367 { .bitrate = 20, .hw_value = 4, },
368 { .bitrate = 55, .hw_value = 11, },
369 { .bitrate = 110, .hw_value = 22, },
370 { .bitrate = 220, .hw_value = 44, },
371 { .bitrate = 60, .hw_value = 12, },
372 { .bitrate = 90, .hw_value = 18, },
373 { .bitrate = 120, .hw_value = 24, },
374 { .bitrate = 180, .hw_value = 36, },
375 { .bitrate = 240, .hw_value = 48, },
376 { .bitrate = 360, .hw_value = 72, },
377 { .bitrate = 480, .hw_value = 96, },
378 { .bitrate = 540, .hw_value = 108, },
381 static const struct ieee80211_channel mwl8k_channels_50[] = {
382 { .band = NL80211_BAND_5GHZ, .center_freq = 5180, .hw_value = 36, },
383 { .band = NL80211_BAND_5GHZ, .center_freq = 5200, .hw_value = 40, },
384 { .band = NL80211_BAND_5GHZ, .center_freq = 5220, .hw_value = 44, },
385 { .band = NL80211_BAND_5GHZ, .center_freq = 5240, .hw_value = 48, },
388 static const struct ieee80211_rate mwl8k_rates_50[] = {
389 { .bitrate = 60, .hw_value = 12, },
390 { .bitrate = 90, .hw_value = 18, },
391 { .bitrate = 120, .hw_value = 24, },
392 { .bitrate = 180, .hw_value = 36, },
393 { .bitrate = 240, .hw_value = 48, },
394 { .bitrate = 360, .hw_value = 72, },
395 { .bitrate = 480, .hw_value = 96, },
396 { .bitrate = 540, .hw_value = 108, },
399 /* Set or get info from Firmware */
400 #define MWL8K_CMD_GET 0x0000
401 #define MWL8K_CMD_SET 0x0001
402 #define MWL8K_CMD_SET_LIST 0x0002
404 /* Firmware command codes */
405 #define MWL8K_CMD_CODE_DNLD 0x0001
406 #define MWL8K_CMD_GET_HW_SPEC 0x0003
407 #define MWL8K_CMD_SET_HW_SPEC 0x0004
408 #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010
409 #define MWL8K_CMD_GET_STAT 0x0014
410 #define MWL8K_CMD_BBP_REG_ACCESS 0x001a
411 #define MWL8K_CMD_RADIO_CONTROL 0x001c
412 #define MWL8K_CMD_RF_TX_POWER 0x001e
413 #define MWL8K_CMD_TX_POWER 0x001f
414 #define MWL8K_CMD_RF_ANTENNA 0x0020
415 #define MWL8K_CMD_SET_BEACON 0x0100 /* per-vif */
416 #define MWL8K_CMD_SET_PRE_SCAN 0x0107
417 #define MWL8K_CMD_SET_POST_SCAN 0x0108
418 #define MWL8K_CMD_SET_RF_CHANNEL 0x010a
419 #define MWL8K_CMD_SET_AID 0x010d
420 #define MWL8K_CMD_SET_RATE 0x0110
421 #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111
422 #define MWL8K_CMD_RTS_THRESHOLD 0x0113
423 #define MWL8K_CMD_SET_SLOT 0x0114
424 #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115
425 #define MWL8K_CMD_SET_WMM_MODE 0x0123
426 #define MWL8K_CMD_MIMO_CONFIG 0x0125
427 #define MWL8K_CMD_USE_FIXED_RATE 0x0126
428 #define MWL8K_CMD_ENABLE_SNIFFER 0x0150
429 #define MWL8K_CMD_SET_MAC_ADDR 0x0202 /* per-vif */
430 #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203
431 #define MWL8K_CMD_GET_WATCHDOG_BITMAP 0x0205
432 #define MWL8K_CMD_DEL_MAC_ADDR 0x0206 /* per-vif */
433 #define MWL8K_CMD_BSS_START 0x1100 /* per-vif */
434 #define MWL8K_CMD_SET_NEW_STN 0x1111 /* per-vif */
435 #define MWL8K_CMD_UPDATE_ENCRYPTION 0x1122 /* per-vif */
436 #define MWL8K_CMD_UPDATE_STADB 0x1123
437 #define MWL8K_CMD_BASTREAM 0x1125
439 #define MWL8K_LEGACY_5G_RATE_OFFSET \
440 (ARRAY_SIZE(mwl8k_rates_24) - ARRAY_SIZE(mwl8k_rates_50))
442 static const char *mwl8k_cmd_name(__le16 cmd, char *buf, int bufsize)
444 u16 command = le16_to_cpu(cmd);
446 #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\
447 snprintf(buf, bufsize, "%s", #x);\
450 switch (command & ~0x8000) {
451 MWL8K_CMDNAME(CODE_DNLD);
452 MWL8K_CMDNAME(GET_HW_SPEC);
453 MWL8K_CMDNAME(SET_HW_SPEC);
454 MWL8K_CMDNAME(MAC_MULTICAST_ADR);
455 MWL8K_CMDNAME(GET_STAT);
456 MWL8K_CMDNAME(RADIO_CONTROL);
457 MWL8K_CMDNAME(RF_TX_POWER);
458 MWL8K_CMDNAME(TX_POWER);
459 MWL8K_CMDNAME(RF_ANTENNA);
460 MWL8K_CMDNAME(SET_BEACON);
461 MWL8K_CMDNAME(SET_PRE_SCAN);
462 MWL8K_CMDNAME(SET_POST_SCAN);
463 MWL8K_CMDNAME(SET_RF_CHANNEL);
464 MWL8K_CMDNAME(SET_AID);
465 MWL8K_CMDNAME(SET_RATE);
466 MWL8K_CMDNAME(SET_FINALIZE_JOIN);
467 MWL8K_CMDNAME(RTS_THRESHOLD);
468 MWL8K_CMDNAME(SET_SLOT);
469 MWL8K_CMDNAME(SET_EDCA_PARAMS);
470 MWL8K_CMDNAME(SET_WMM_MODE);
471 MWL8K_CMDNAME(MIMO_CONFIG);
472 MWL8K_CMDNAME(USE_FIXED_RATE);
473 MWL8K_CMDNAME(ENABLE_SNIFFER);
474 MWL8K_CMDNAME(SET_MAC_ADDR);
475 MWL8K_CMDNAME(SET_RATEADAPT_MODE);
476 MWL8K_CMDNAME(BSS_START);
477 MWL8K_CMDNAME(SET_NEW_STN);
478 MWL8K_CMDNAME(UPDATE_ENCRYPTION);
479 MWL8K_CMDNAME(UPDATE_STADB);
480 MWL8K_CMDNAME(BASTREAM);
481 MWL8K_CMDNAME(GET_WATCHDOG_BITMAP);
483 snprintf(buf, bufsize, "0x%x", cmd);
490 /* Hardware and firmware reset */
491 static void mwl8k_hw_reset(struct mwl8k_priv *priv)
493 iowrite32(MWL8K_H2A_INT_RESET,
494 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
495 iowrite32(MWL8K_H2A_INT_RESET,
496 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
500 /* Release fw image */
501 static void mwl8k_release_fw(const struct firmware **fw)
505 release_firmware(*fw);
509 static void mwl8k_release_firmware(struct mwl8k_priv *priv)
511 mwl8k_release_fw(&priv->fw_ucode);
512 mwl8k_release_fw(&priv->fw_helper);
515 /* states for asynchronous f/w loading */
516 static void mwl8k_fw_state_machine(const struct firmware *fw, void *context);
519 FW_STATE_LOADING_PREF,
520 FW_STATE_LOADING_ALT,
524 /* Request fw image */
525 static int mwl8k_request_fw(struct mwl8k_priv *priv,
526 const char *fname, const struct firmware **fw,
529 /* release current image */
531 mwl8k_release_fw(fw);
534 return reject_firmware_nowait(THIS_MODULE, 1, fname,
535 &priv->pdev->dev, GFP_KERNEL,
536 priv, mwl8k_fw_state_machine);
538 return reject_firmware(fw, fname, &priv->pdev->dev);
541 static int mwl8k_request_firmware(struct mwl8k_priv *priv, char *fw_image,
544 struct mwl8k_device_info *di = priv->device_info;
547 if (di->helper_image != NULL) {
549 rc = mwl8k_request_fw(priv, di->helper_image,
550 &priv->fw_helper, true);
552 rc = mwl8k_request_fw(priv, di->helper_image,
553 &priv->fw_helper, false);
555 printk(KERN_ERR "%s: Error requesting helper fw %s\n",
556 pci_name(priv->pdev), di->helper_image);
564 * if we get here, no helper image is needed. Skip the
565 * FW_STATE_INIT state.
567 priv->fw_state = FW_STATE_LOADING_PREF;
568 rc = mwl8k_request_fw(priv, fw_image,
572 rc = mwl8k_request_fw(priv, fw_image,
573 &priv->fw_ucode, false);
575 printk(KERN_ERR "%s: Error requesting firmware file %s\n",
576 pci_name(priv->pdev), fw_image);
577 mwl8k_release_fw(&priv->fw_helper);
584 struct mwl8k_cmd_pkt {
597 mwl8k_send_fw_load_cmd(struct mwl8k_priv *priv, void *data, int length)
599 void __iomem *regs = priv->regs;
603 dma_addr = pci_map_single(priv->pdev, data, length, PCI_DMA_TODEVICE);
604 if (pci_dma_mapping_error(priv->pdev, dma_addr))
607 iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
608 iowrite32(0, regs + MWL8K_HIU_INT_CODE);
609 iowrite32(MWL8K_H2A_INT_DOORBELL,
610 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
611 iowrite32(MWL8K_H2A_INT_DUMMY,
612 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
618 int_code = ioread32(regs +
619 MWL8K_HIU_H2A_INTERRUPT_STATUS);
623 int_code = ioread32(regs + MWL8K_HIU_INT_CODE);
624 if (int_code == MWL8K_INT_CODE_CMD_FINISHED) {
625 iowrite32(0, regs + MWL8K_HIU_INT_CODE);
633 pci_unmap_single(priv->pdev, dma_addr, length, PCI_DMA_TODEVICE);
635 return loops ? 0 : -ETIMEDOUT;
638 static int mwl8k_load_fw_image(struct mwl8k_priv *priv,
639 const u8 *data, size_t length)
641 struct mwl8k_cmd_pkt *cmd;
645 cmd = kmalloc(sizeof(*cmd) + 256, GFP_KERNEL);
649 cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD);
656 int block_size = length > 256 ? 256 : length;
658 memcpy(cmd->payload, data + done, block_size);
659 cmd->length = cpu_to_le16(block_size);
661 rc = mwl8k_send_fw_load_cmd(priv, cmd,
662 sizeof(*cmd) + block_size);
667 length -= block_size;
672 rc = mwl8k_send_fw_load_cmd(priv, cmd, sizeof(*cmd));
680 static int mwl8k_feed_fw_image(struct mwl8k_priv *priv,
681 const u8 *data, size_t length)
683 unsigned char *buffer;
684 int may_continue, rc = 0;
685 u32 done, prev_block_size;
687 buffer = kmalloc(1024, GFP_KERNEL);
694 while (may_continue > 0) {
697 block_size = ioread32(priv->regs + MWL8K_HIU_SCRATCH);
698 if (block_size & 1) {
702 done += prev_block_size;
703 length -= prev_block_size;
706 if (block_size > 1024 || block_size > length) {
716 if (block_size == 0) {
723 prev_block_size = block_size;
724 memcpy(buffer, data + done, block_size);
726 rc = mwl8k_send_fw_load_cmd(priv, buffer, block_size);
731 if (!rc && length != 0)
739 static int mwl8k_load_firmware(struct ieee80211_hw *hw)
741 struct mwl8k_priv *priv = hw->priv;
742 const struct firmware *fw = priv->fw_ucode;
746 if (!memcmp(fw->data, "\x01\x00\x00\x00", 4) && !priv->is_8764) {
747 const struct firmware *helper = priv->fw_helper;
749 if (helper == NULL) {
750 printk(KERN_ERR "%s: helper image needed but none "
751 "given\n", pci_name(priv->pdev));
755 rc = mwl8k_load_fw_image(priv, helper->data, helper->size);
757 printk(KERN_ERR "%s: unable to load firmware "
758 "helper image\n", pci_name(priv->pdev));
763 rc = mwl8k_feed_fw_image(priv, fw->data, fw->size);
766 rc = mwl8k_feed_fw_image(priv, fw->data, fw->size);
768 rc = mwl8k_load_fw_image(priv, fw->data, fw->size);
772 printk(KERN_ERR "%s: unable to load firmware image\n",
773 pci_name(priv->pdev));
777 iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR);
783 ready_code = ioread32(priv->regs + MWL8K_HIU_INT_CODE);
784 if (ready_code == MWL8K_FWAP_READY) {
787 } else if (ready_code == MWL8K_FWSTA_READY) {
796 return loops ? 0 : -ETIMEDOUT;
800 /* DMA header used by firmware and hardware. */
801 struct mwl8k_dma_data {
803 struct ieee80211_hdr wh;
807 /* Routines to add/remove DMA header from skb. */
808 static inline void mwl8k_remove_dma_header(struct sk_buff *skb, __le16 qos)
810 struct mwl8k_dma_data *tr;
813 tr = (struct mwl8k_dma_data *)skb->data;
814 hdrlen = ieee80211_hdrlen(tr->wh.frame_control);
816 if (hdrlen != sizeof(tr->wh)) {
817 if (ieee80211_is_data_qos(tr->wh.frame_control)) {
818 memmove(tr->data - hdrlen, &tr->wh, hdrlen - 2);
819 *((__le16 *)(tr->data - 2)) = qos;
821 memmove(tr->data - hdrlen, &tr->wh, hdrlen);
825 if (hdrlen != sizeof(*tr))
826 skb_pull(skb, sizeof(*tr) - hdrlen);
829 #define REDUCED_TX_HEADROOM 8
832 mwl8k_add_dma_header(struct mwl8k_priv *priv, struct sk_buff *skb,
833 int head_pad, int tail_pad)
835 struct ieee80211_hdr *wh;
838 struct mwl8k_dma_data *tr;
841 * Add a firmware DMA header; the firmware requires that we
842 * present a 2-byte payload length followed by a 4-address
843 * header (without QoS field), followed (optionally) by any
844 * WEP/ExtIV header (but only filled in for CCMP).
846 wh = (struct ieee80211_hdr *)skb->data;
848 hdrlen = ieee80211_hdrlen(wh->frame_control);
851 * Check if skb_resize is required because of
852 * tx_headroom adjustment.
854 if (priv->ap_fw && (hdrlen < (sizeof(struct ieee80211_cts)
855 + REDUCED_TX_HEADROOM))) {
856 if (pskb_expand_head(skb, REDUCED_TX_HEADROOM, 0, GFP_ATOMIC)) {
858 wiphy_err(priv->hw->wiphy,
859 "Failed to reallocate TX buffer\n");
862 skb->truesize += REDUCED_TX_HEADROOM;
865 reqd_hdrlen = sizeof(*tr) + head_pad;
867 if (hdrlen != reqd_hdrlen)
868 skb_push(skb, reqd_hdrlen - hdrlen);
870 if (ieee80211_is_data_qos(wh->frame_control))
871 hdrlen -= IEEE80211_QOS_CTL_LEN;
873 tr = (struct mwl8k_dma_data *)skb->data;
875 memmove(&tr->wh, wh, hdrlen);
876 if (hdrlen != sizeof(tr->wh))
877 memset(((void *)&tr->wh) + hdrlen, 0, sizeof(tr->wh) - hdrlen);
880 * Firmware length is the length of the fully formed "802.11
881 * payload". That is, everything except for the 802.11 header.
882 * This includes all crypto material including the MIC.
884 tr->fwlen = cpu_to_le16(skb->len - sizeof(*tr) + tail_pad);
887 static void mwl8k_encapsulate_tx_frame(struct mwl8k_priv *priv,
890 struct ieee80211_hdr *wh;
891 struct ieee80211_tx_info *tx_info;
892 struct ieee80211_key_conf *key_conf;
896 wh = (struct ieee80211_hdr *)skb->data;
898 tx_info = IEEE80211_SKB_CB(skb);
901 if (ieee80211_is_data(wh->frame_control))
902 key_conf = tx_info->control.hw_key;
905 * Make sure the packet header is in the DMA header format (4-address
906 * without QoS), and add head & tail padding when HW crypto is enabled.
908 * We have the following trailer padding requirements:
909 * - WEP: 4 trailer bytes (ICV)
910 * - TKIP: 12 trailer bytes (8 MIC + 4 ICV)
911 * - CCMP: 8 trailer bytes (MIC)
914 if (key_conf != NULL) {
915 head_pad = key_conf->iv_len;
916 switch (key_conf->cipher) {
917 case WLAN_CIPHER_SUITE_WEP40:
918 case WLAN_CIPHER_SUITE_WEP104:
921 case WLAN_CIPHER_SUITE_TKIP:
924 case WLAN_CIPHER_SUITE_CCMP:
929 mwl8k_add_dma_header(priv, skb, head_pad, data_pad);
933 * Packet reception for 88w8366/88w8764 AP firmware.
935 struct mwl8k_rxd_ap {
939 __le32 pkt_phys_addr;
940 __le32 next_rxd_phys_addr;
944 __le32 hw_noise_floor_info;
953 #define MWL8K_AP_RATE_INFO_MCS_FORMAT 0x80
954 #define MWL8K_AP_RATE_INFO_40MHZ 0x40
955 #define MWL8K_AP_RATE_INFO_RATEID(x) ((x) & 0x3f)
957 #define MWL8K_AP_RX_CTRL_OWNED_BY_HOST 0x80
959 /* 8366/8764 AP rx_status bits */
960 #define MWL8K_AP_RXSTAT_DECRYPT_ERR_MASK 0x80
961 #define MWL8K_AP_RXSTAT_GENERAL_DECRYPT_ERR 0xFF
962 #define MWL8K_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR 0x02
963 #define MWL8K_AP_RXSTAT_WEP_DECRYPT_ICV_ERR 0x04
964 #define MWL8K_AP_RXSTAT_TKIP_DECRYPT_ICV_ERR 0x08
966 static void mwl8k_rxd_ap_init(void *_rxd, dma_addr_t next_dma_addr)
968 struct mwl8k_rxd_ap *rxd = _rxd;
970 rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr);
971 rxd->rx_ctrl = MWL8K_AP_RX_CTRL_OWNED_BY_HOST;
974 static void mwl8k_rxd_ap_refill(void *_rxd, dma_addr_t addr, int len)
976 struct mwl8k_rxd_ap *rxd = _rxd;
978 rxd->pkt_len = cpu_to_le16(len);
979 rxd->pkt_phys_addr = cpu_to_le32(addr);
985 mwl8k_rxd_ap_process(void *_rxd, struct ieee80211_rx_status *status,
986 __le16 *qos, s8 *noise)
988 struct mwl8k_rxd_ap *rxd = _rxd;
990 if (!(rxd->rx_ctrl & MWL8K_AP_RX_CTRL_OWNED_BY_HOST))
994 memset(status, 0, sizeof(*status));
996 status->signal = -rxd->rssi;
997 *noise = -rxd->noise_floor;
999 if (rxd->rate & MWL8K_AP_RATE_INFO_MCS_FORMAT) {
1000 status->encoding = RX_ENC_HT;
1001 if (rxd->rate & MWL8K_AP_RATE_INFO_40MHZ)
1002 status->bw = RATE_INFO_BW_40;
1003 status->rate_idx = MWL8K_AP_RATE_INFO_RATEID(rxd->rate);
1007 for (i = 0; i < ARRAY_SIZE(mwl8k_rates_24); i++) {
1008 if (mwl8k_rates_24[i].hw_value == rxd->rate) {
1009 status->rate_idx = i;
1015 if (rxd->channel > 14) {
1016 status->band = NL80211_BAND_5GHZ;
1017 if (!(status->encoding == RX_ENC_HT) &&
1018 status->rate_idx >= MWL8K_LEGACY_5G_RATE_OFFSET)
1019 status->rate_idx -= MWL8K_LEGACY_5G_RATE_OFFSET;
1021 status->band = NL80211_BAND_2GHZ;
1023 status->freq = ieee80211_channel_to_frequency(rxd->channel,
1026 *qos = rxd->qos_control;
1028 if ((rxd->rx_status != MWL8K_AP_RXSTAT_GENERAL_DECRYPT_ERR) &&
1029 (rxd->rx_status & MWL8K_AP_RXSTAT_DECRYPT_ERR_MASK) &&
1030 (rxd->rx_status & MWL8K_AP_RXSTAT_TKIP_DECRYPT_MIC_ERR))
1031 status->flag |= RX_FLAG_MMIC_ERROR;
1033 return le16_to_cpu(rxd->pkt_len);
1036 static struct rxd_ops rxd_ap_ops = {
1037 .rxd_size = sizeof(struct mwl8k_rxd_ap),
1038 .rxd_init = mwl8k_rxd_ap_init,
1039 .rxd_refill = mwl8k_rxd_ap_refill,
1040 .rxd_process = mwl8k_rxd_ap_process,
1044 * Packet reception for STA firmware.
1046 struct mwl8k_rxd_sta {
1050 __le32 pkt_phys_addr;
1051 __le32 next_rxd_phys_addr;
1063 #define MWL8K_STA_RATE_INFO_SHORTPRE 0x8000
1064 #define MWL8K_STA_RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3)
1065 #define MWL8K_STA_RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f)
1066 #define MWL8K_STA_RATE_INFO_40MHZ 0x0004
1067 #define MWL8K_STA_RATE_INFO_SHORTGI 0x0002
1068 #define MWL8K_STA_RATE_INFO_MCS_FORMAT 0x0001
1070 #define MWL8K_STA_RX_CTRL_OWNED_BY_HOST 0x02
1071 #define MWL8K_STA_RX_CTRL_DECRYPT_ERROR 0x04
1072 /* ICV=0 or MIC=1 */
1073 #define MWL8K_STA_RX_CTRL_DEC_ERR_TYPE 0x08
1074 /* Key is uploaded only in failure case */
1075 #define MWL8K_STA_RX_CTRL_KEY_INDEX 0x30
1077 static void mwl8k_rxd_sta_init(void *_rxd, dma_addr_t next_dma_addr)
1079 struct mwl8k_rxd_sta *rxd = _rxd;
1081 rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr);
1082 rxd->rx_ctrl = MWL8K_STA_RX_CTRL_OWNED_BY_HOST;
1085 static void mwl8k_rxd_sta_refill(void *_rxd, dma_addr_t addr, int len)
1087 struct mwl8k_rxd_sta *rxd = _rxd;
1089 rxd->pkt_len = cpu_to_le16(len);
1090 rxd->pkt_phys_addr = cpu_to_le32(addr);
1096 mwl8k_rxd_sta_process(void *_rxd, struct ieee80211_rx_status *status,
1097 __le16 *qos, s8 *noise)
1099 struct mwl8k_rxd_sta *rxd = _rxd;
1102 if (!(rxd->rx_ctrl & MWL8K_STA_RX_CTRL_OWNED_BY_HOST))
1106 rate_info = le16_to_cpu(rxd->rate_info);
1108 memset(status, 0, sizeof(*status));
1110 status->signal = -rxd->rssi;
1111 *noise = -rxd->noise_level;
1112 status->antenna = MWL8K_STA_RATE_INFO_ANTSELECT(rate_info);
1113 status->rate_idx = MWL8K_STA_RATE_INFO_RATEID(rate_info);
1115 if (rate_info & MWL8K_STA_RATE_INFO_SHORTPRE)
1116 status->enc_flags |= RX_ENC_FLAG_SHORTPRE;
1117 if (rate_info & MWL8K_STA_RATE_INFO_40MHZ)
1118 status->bw = RATE_INFO_BW_40;
1119 if (rate_info & MWL8K_STA_RATE_INFO_SHORTGI)
1120 status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
1121 if (rate_info & MWL8K_STA_RATE_INFO_MCS_FORMAT)
1122 status->encoding = RX_ENC_HT;
1124 if (rxd->channel > 14) {
1125 status->band = NL80211_BAND_5GHZ;
1126 if (!(status->encoding == RX_ENC_HT) &&
1127 status->rate_idx >= MWL8K_LEGACY_5G_RATE_OFFSET)
1128 status->rate_idx -= MWL8K_LEGACY_5G_RATE_OFFSET;
1130 status->band = NL80211_BAND_2GHZ;
1132 status->freq = ieee80211_channel_to_frequency(rxd->channel,
1135 *qos = rxd->qos_control;
1136 if ((rxd->rx_ctrl & MWL8K_STA_RX_CTRL_DECRYPT_ERROR) &&
1137 (rxd->rx_ctrl & MWL8K_STA_RX_CTRL_DEC_ERR_TYPE))
1138 status->flag |= RX_FLAG_MMIC_ERROR;
1140 return le16_to_cpu(rxd->pkt_len);
1143 static struct rxd_ops rxd_sta_ops = {
1144 .rxd_size = sizeof(struct mwl8k_rxd_sta),
1145 .rxd_init = mwl8k_rxd_sta_init,
1146 .rxd_refill = mwl8k_rxd_sta_refill,
1147 .rxd_process = mwl8k_rxd_sta_process,
1151 #define MWL8K_RX_DESCS 256
1152 #define MWL8K_RX_MAXSZ 3800
1154 static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index)
1156 struct mwl8k_priv *priv = hw->priv;
1157 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1165 size = MWL8K_RX_DESCS * priv->rxd_ops->rxd_size;
1167 rxq->rxd = pci_zalloc_consistent(priv->pdev, size, &rxq->rxd_dma);
1168 if (rxq->rxd == NULL) {
1169 wiphy_err(hw->wiphy, "failed to alloc RX descriptors\n");
1173 rxq->buf = kcalloc(MWL8K_RX_DESCS, sizeof(*rxq->buf), GFP_KERNEL);
1174 if (rxq->buf == NULL) {
1175 pci_free_consistent(priv->pdev, size, rxq->rxd, rxq->rxd_dma);
1179 for (i = 0; i < MWL8K_RX_DESCS; i++) {
1183 dma_addr_t next_dma_addr;
1185 desc_size = priv->rxd_ops->rxd_size;
1186 rxd = rxq->rxd + (i * priv->rxd_ops->rxd_size);
1189 if (nexti == MWL8K_RX_DESCS)
1191 next_dma_addr = rxq->rxd_dma + (nexti * desc_size);
1193 priv->rxd_ops->rxd_init(rxd, next_dma_addr);
1199 static int rxq_refill(struct ieee80211_hw *hw, int index, int limit)
1201 struct mwl8k_priv *priv = hw->priv;
1202 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1206 while (rxq->rxd_count < MWL8K_RX_DESCS && limit--) {
1207 struct sk_buff *skb;
1212 skb = dev_alloc_skb(MWL8K_RX_MAXSZ);
1216 addr = pci_map_single(priv->pdev, skb->data,
1217 MWL8K_RX_MAXSZ, DMA_FROM_DEVICE);
1221 if (rxq->tail == MWL8K_RX_DESCS)
1223 rxq->buf[rx].skb = skb;
1224 dma_unmap_addr_set(&rxq->buf[rx], dma, addr);
1226 rxd = rxq->rxd + (rx * priv->rxd_ops->rxd_size);
1227 priv->rxd_ops->rxd_refill(rxd, addr, MWL8K_RX_MAXSZ);
1235 /* Must be called only when the card's reception is completely halted */
1236 static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index)
1238 struct mwl8k_priv *priv = hw->priv;
1239 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1242 if (rxq->rxd == NULL)
1245 for (i = 0; i < MWL8K_RX_DESCS; i++) {
1246 if (rxq->buf[i].skb != NULL) {
1247 pci_unmap_single(priv->pdev,
1248 dma_unmap_addr(&rxq->buf[i], dma),
1249 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1250 dma_unmap_addr_set(&rxq->buf[i], dma, 0);
1252 kfree_skb(rxq->buf[i].skb);
1253 rxq->buf[i].skb = NULL;
1260 pci_free_consistent(priv->pdev,
1261 MWL8K_RX_DESCS * priv->rxd_ops->rxd_size,
1262 rxq->rxd, rxq->rxd_dma);
1268 * Scan a list of BSSIDs to process for finalize join.
1269 * Allows for extension to process multiple BSSIDs.
1272 mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh)
1274 return priv->capture_beacon &&
1275 ieee80211_is_beacon(wh->frame_control) &&
1276 ether_addr_equal_64bits(wh->addr3, priv->capture_bssid);
1279 static inline void mwl8k_save_beacon(struct ieee80211_hw *hw,
1280 struct sk_buff *skb)
1282 struct mwl8k_priv *priv = hw->priv;
1284 priv->capture_beacon = false;
1285 eth_zero_addr(priv->capture_bssid);
1288 * Use GFP_ATOMIC as rxq_process is called from
1289 * the primary interrupt handler, memory allocation call
1292 priv->beacon_skb = skb_copy(skb, GFP_ATOMIC);
1293 if (priv->beacon_skb != NULL)
1294 ieee80211_queue_work(hw, &priv->finalize_join_worker);
1297 static inline struct mwl8k_vif *mwl8k_find_vif_bss(struct list_head *vif_list,
1300 struct mwl8k_vif *mwl8k_vif;
1302 list_for_each_entry(mwl8k_vif,
1304 if (memcmp(bssid, mwl8k_vif->bssid,
1312 static int rxq_process(struct ieee80211_hw *hw, int index, int limit)
1314 struct mwl8k_priv *priv = hw->priv;
1315 struct mwl8k_vif *mwl8k_vif = NULL;
1316 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1320 while (rxq->rxd_count && limit--) {
1321 struct sk_buff *skb;
1324 struct ieee80211_rx_status status;
1325 struct ieee80211_hdr *wh;
1328 skb = rxq->buf[rxq->head].skb;
1332 rxd = rxq->rxd + (rxq->head * priv->rxd_ops->rxd_size);
1334 pkt_len = priv->rxd_ops->rxd_process(rxd, &status, &qos,
1339 rxq->buf[rxq->head].skb = NULL;
1341 pci_unmap_single(priv->pdev,
1342 dma_unmap_addr(&rxq->buf[rxq->head], dma),
1343 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1344 dma_unmap_addr_set(&rxq->buf[rxq->head], dma, 0);
1347 if (rxq->head == MWL8K_RX_DESCS)
1352 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1355 * Check for a pending join operation. Save a
1356 * copy of the beacon and schedule a tasklet to
1357 * send a FINALIZE_JOIN command to the firmware.
1359 if (mwl8k_capture_bssid(priv, (void *)skb->data))
1360 mwl8k_save_beacon(hw, skb);
1362 if (ieee80211_has_protected(wh->frame_control)) {
1364 /* Check if hw crypto has been enabled for
1365 * this bss. If yes, set the status flags
1368 mwl8k_vif = mwl8k_find_vif_bss(&priv->vif_list,
1371 if (mwl8k_vif != NULL &&
1372 mwl8k_vif->is_hw_crypto_enabled) {
1374 * When MMIC ERROR is encountered
1375 * by the firmware, payload is
1376 * dropped and only 32 bytes of
1377 * mwl8k Firmware header is sent
1380 * We need to add four bytes of
1381 * key information. In it
1382 * MAC80211 expects keyidx set to
1383 * 0 for triggering Counter
1384 * Measure of MMIC failure.
1386 if (status.flag & RX_FLAG_MMIC_ERROR) {
1387 struct mwl8k_dma_data *tr;
1388 tr = (struct mwl8k_dma_data *)skb->data;
1389 memset((void *)&(tr->data), 0, 4);
1393 if (!ieee80211_is_auth(wh->frame_control))
1394 status.flag |= RX_FLAG_IV_STRIPPED |
1396 RX_FLAG_MMIC_STRIPPED;
1400 skb_put(skb, pkt_len);
1401 mwl8k_remove_dma_header(skb, qos);
1402 memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
1403 ieee80211_rx_irqsafe(hw, skb);
1413 * Packet transmission.
1416 #define MWL8K_TXD_STATUS_OK 0x00000001
1417 #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002
1418 #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004
1419 #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008
1420 #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000
1422 #define MWL8K_QOS_QLEN_UNSPEC 0xff00
1423 #define MWL8K_QOS_ACK_POLICY_MASK 0x0060
1424 #define MWL8K_QOS_ACK_POLICY_NORMAL 0x0000
1425 #define MWL8K_QOS_ACK_POLICY_BLOCKACK 0x0060
1426 #define MWL8K_QOS_EOSP 0x0010
1428 struct mwl8k_tx_desc {
1433 __le32 pkt_phys_addr;
1435 __u8 dest_MAC_addr[ETH_ALEN];
1436 __le32 next_txd_phys_addr;
1443 #define MWL8K_TX_DESCS 128
1445 static int mwl8k_txq_init(struct ieee80211_hw *hw, int index)
1447 struct mwl8k_priv *priv = hw->priv;
1448 struct mwl8k_tx_queue *txq = priv->txq + index;
1456 size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc);
1458 txq->txd = pci_zalloc_consistent(priv->pdev, size, &txq->txd_dma);
1459 if (txq->txd == NULL) {
1460 wiphy_err(hw->wiphy, "failed to alloc TX descriptors\n");
1464 txq->skb = kcalloc(MWL8K_TX_DESCS, sizeof(*txq->skb), GFP_KERNEL);
1465 if (txq->skb == NULL) {
1466 pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma);
1471 for (i = 0; i < MWL8K_TX_DESCS; i++) {
1472 struct mwl8k_tx_desc *tx_desc;
1475 tx_desc = txq->txd + i;
1476 nexti = (i + 1) % MWL8K_TX_DESCS;
1478 tx_desc->status = 0;
1479 tx_desc->next_txd_phys_addr =
1480 cpu_to_le32(txq->txd_dma + nexti * sizeof(*tx_desc));
1486 static inline void mwl8k_tx_start(struct mwl8k_priv *priv)
1488 iowrite32(MWL8K_H2A_INT_PPA_READY,
1489 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1490 iowrite32(MWL8K_H2A_INT_DUMMY,
1491 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1492 ioread32(priv->regs + MWL8K_HIU_INT_CODE);
1495 static void mwl8k_dump_tx_rings(struct ieee80211_hw *hw)
1497 struct mwl8k_priv *priv = hw->priv;
1500 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
1501 struct mwl8k_tx_queue *txq = priv->txq + i;
1507 for (desc = 0; desc < MWL8K_TX_DESCS; desc++) {
1508 struct mwl8k_tx_desc *tx_desc = txq->txd + desc;
1511 status = le32_to_cpu(tx_desc->status);
1512 if (status & MWL8K_TXD_STATUS_FW_OWNED)
1517 if (tx_desc->pkt_len == 0)
1521 wiphy_err(hw->wiphy,
1522 "txq[%d] len=%d head=%d tail=%d "
1523 "fw_owned=%d drv_owned=%d unused=%d\n",
1525 txq->len, txq->head, txq->tail,
1526 fw_owned, drv_owned, unused);
1531 * Must be called with priv->fw_mutex held and tx queues stopped.
1533 #define MWL8K_TX_WAIT_TIMEOUT_MS 5000
1535 static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw)
1537 struct mwl8k_priv *priv = hw->priv;
1538 DECLARE_COMPLETION_ONSTACK(tx_wait);
1544 /* Since fw restart is in progress, allow only the firmware
1545 * commands from the restart code and block the other
1546 * commands since they are going to fail in any case since
1547 * the firmware has crashed
1549 if (priv->hw_restart_in_progress) {
1550 if (priv->hw_restart_owner == current)
1556 if (atomic_read(&priv->watchdog_event_pending))
1560 * The TX queues are stopped at this point, so this test
1561 * doesn't need to take ->tx_lock.
1563 if (!priv->pending_tx_pkts)
1569 spin_lock_bh(&priv->tx_lock);
1570 priv->tx_wait = &tx_wait;
1573 unsigned long timeout;
1575 oldcount = priv->pending_tx_pkts;
1577 spin_unlock_bh(&priv->tx_lock);
1578 timeout = wait_for_completion_timeout(&tx_wait,
1579 msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS));
1581 if (atomic_read(&priv->watchdog_event_pending)) {
1582 spin_lock_bh(&priv->tx_lock);
1583 priv->tx_wait = NULL;
1584 spin_unlock_bh(&priv->tx_lock);
1588 spin_lock_bh(&priv->tx_lock);
1590 if (timeout || !priv->pending_tx_pkts) {
1591 WARN_ON(priv->pending_tx_pkts);
1593 wiphy_notice(hw->wiphy, "tx rings drained\n");
1598 mwl8k_tx_start(priv);
1603 if (priv->pending_tx_pkts < oldcount) {
1604 wiphy_notice(hw->wiphy,
1605 "waiting for tx rings to drain (%d -> %d pkts)\n",
1606 oldcount, priv->pending_tx_pkts);
1611 priv->tx_wait = NULL;
1613 wiphy_err(hw->wiphy, "tx rings stuck for %d ms\n",
1614 MWL8K_TX_WAIT_TIMEOUT_MS);
1615 mwl8k_dump_tx_rings(hw);
1616 priv->hw_restart_in_progress = true;
1617 ieee80211_queue_work(hw, &priv->fw_reload);
1621 priv->tx_wait = NULL;
1622 spin_unlock_bh(&priv->tx_lock);
1627 #define MWL8K_TXD_SUCCESS(status) \
1628 ((status) & (MWL8K_TXD_STATUS_OK | \
1629 MWL8K_TXD_STATUS_OK_RETRY | \
1630 MWL8K_TXD_STATUS_OK_MORE_RETRY))
1632 static int mwl8k_tid_queue_mapping(u8 tid)
1639 return IEEE80211_AC_BE;
1642 return IEEE80211_AC_BK;
1645 return IEEE80211_AC_VI;
1648 return IEEE80211_AC_VO;
1654 /* The firmware will fill in the rate information
1655 * for each packet that gets queued in the hardware
1656 * and these macros will interpret that info.
1659 #define RI_FORMAT(a) (a & 0x0001)
1660 #define RI_RATE_ID_MCS(a) ((a & 0x01f8) >> 3)
1663 mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force)
1665 struct mwl8k_priv *priv = hw->priv;
1666 struct mwl8k_tx_queue *txq = priv->txq + index;
1670 while (txq->len > 0 && limit--) {
1672 struct mwl8k_tx_desc *tx_desc;
1675 struct sk_buff *skb;
1676 struct ieee80211_tx_info *info;
1678 struct ieee80211_sta *sta;
1679 struct mwl8k_sta *sta_info = NULL;
1681 struct ieee80211_hdr *wh;
1684 tx_desc = txq->txd + tx;
1686 status = le32_to_cpu(tx_desc->status);
1688 if (status & MWL8K_TXD_STATUS_FW_OWNED) {
1692 ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED);
1695 txq->head = (tx + 1) % MWL8K_TX_DESCS;
1696 BUG_ON(txq->len == 0);
1698 priv->pending_tx_pkts--;
1700 addr = le32_to_cpu(tx_desc->pkt_phys_addr);
1701 size = le16_to_cpu(tx_desc->pkt_len);
1703 txq->skb[tx] = NULL;
1705 BUG_ON(skb == NULL);
1706 pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE);
1708 mwl8k_remove_dma_header(skb, tx_desc->qos_control);
1710 wh = (struct ieee80211_hdr *) skb->data;
1712 /* Mark descriptor as unused */
1713 tx_desc->pkt_phys_addr = 0;
1714 tx_desc->pkt_len = 0;
1716 info = IEEE80211_SKB_CB(skb);
1717 if (ieee80211_is_data(wh->frame_control)) {
1719 sta = ieee80211_find_sta_by_ifaddr(hw, wh->addr1,
1722 sta_info = MWL8K_STA(sta);
1723 BUG_ON(sta_info == NULL);
1724 rate_info = le16_to_cpu(tx_desc->rate_info);
1725 /* If rate is < 6.5 Mpbs for an ht station
1726 * do not form an ampdu. If the station is a
1727 * legacy station (format = 0), do not form an
1730 if (RI_RATE_ID_MCS(rate_info) < 1 ||
1731 RI_FORMAT(rate_info) == 0) {
1732 sta_info->is_ampdu_allowed = false;
1734 sta_info->is_ampdu_allowed = true;
1740 ieee80211_tx_info_clear_status(info);
1742 /* Rate control is happening in the firmware.
1743 * Ensure no tx rate is being reported.
1745 info->status.rates[0].idx = -1;
1746 info->status.rates[0].count = 1;
1748 if (MWL8K_TXD_SUCCESS(status))
1749 info->flags |= IEEE80211_TX_STAT_ACK;
1751 ieee80211_tx_status_irqsafe(hw, skb);
1759 /* must be called only when the card's transmit is completely halted */
1760 static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index)
1762 struct mwl8k_priv *priv = hw->priv;
1763 struct mwl8k_tx_queue *txq = priv->txq + index;
1765 if (txq->txd == NULL)
1768 mwl8k_txq_reclaim(hw, index, INT_MAX, 1);
1773 pci_free_consistent(priv->pdev,
1774 MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc),
1775 txq->txd, txq->txd_dma);
1779 /* caller must hold priv->stream_lock when calling the stream functions */
1780 static struct mwl8k_ampdu_stream *
1781 mwl8k_add_stream(struct ieee80211_hw *hw, struct ieee80211_sta *sta, u8 tid)
1783 struct mwl8k_ampdu_stream *stream;
1784 struct mwl8k_priv *priv = hw->priv;
1787 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
1788 stream = &priv->ampdu[i];
1789 if (stream->state == AMPDU_NO_STREAM) {
1791 stream->state = AMPDU_STREAM_NEW;
1794 wiphy_debug(hw->wiphy, "Added a new stream for %pM %d",
1803 mwl8k_start_stream(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream)
1807 /* if the stream has already been started, don't start it again */
1808 if (stream->state != AMPDU_STREAM_NEW)
1810 ret = ieee80211_start_tx_ba_session(stream->sta, stream->tid, 0);
1812 wiphy_debug(hw->wiphy, "Failed to start stream for %pM %d: "
1813 "%d\n", stream->sta->addr, stream->tid, ret);
1815 wiphy_debug(hw->wiphy, "Started stream for %pM %d\n",
1816 stream->sta->addr, stream->tid);
1821 mwl8k_remove_stream(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream)
1823 wiphy_debug(hw->wiphy, "Remove stream for %pM %d\n", stream->sta->addr,
1825 memset(stream, 0, sizeof(*stream));
1828 static struct mwl8k_ampdu_stream *
1829 mwl8k_lookup_stream(struct ieee80211_hw *hw, u8 *addr, u8 tid)
1831 struct mwl8k_priv *priv = hw->priv;
1834 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
1835 struct mwl8k_ampdu_stream *stream;
1836 stream = &priv->ampdu[i];
1837 if (stream->state == AMPDU_NO_STREAM)
1839 if (!memcmp(stream->sta->addr, addr, ETH_ALEN) &&
1846 #define MWL8K_AMPDU_PACKET_THRESHOLD 64
1847 static inline bool mwl8k_ampdu_allowed(struct ieee80211_sta *sta, u8 tid)
1849 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
1850 struct tx_traffic_info *tx_stats;
1852 BUG_ON(tid >= MWL8K_MAX_TID);
1853 tx_stats = &sta_info->tx_stats[tid];
1855 return sta_info->is_ampdu_allowed &&
1856 tx_stats->pkts > MWL8K_AMPDU_PACKET_THRESHOLD;
1859 static inline void mwl8k_tx_count_packet(struct ieee80211_sta *sta, u8 tid)
1861 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
1862 struct tx_traffic_info *tx_stats;
1864 BUG_ON(tid >= MWL8K_MAX_TID);
1865 tx_stats = &sta_info->tx_stats[tid];
1867 if (tx_stats->start_time == 0)
1868 tx_stats->start_time = jiffies;
1870 /* reset the packet count after each second elapses. If the number of
1871 * packets ever exceeds the ampdu_min_traffic threshold, we will allow
1872 * an ampdu stream to be started.
1874 if (jiffies - tx_stats->start_time > HZ) {
1876 tx_stats->start_time = 0;
1881 /* The hardware ampdu queues start from 5.
1882 * txpriorities for ampdu queues are
1883 * 5 6 7 0 1 2 3 4 ie., queue 5 is highest
1884 * and queue 3 is lowest (queue 4 is reserved)
1889 mwl8k_txq_xmit(struct ieee80211_hw *hw,
1891 struct ieee80211_sta *sta,
1892 struct sk_buff *skb)
1894 struct mwl8k_priv *priv = hw->priv;
1895 struct ieee80211_tx_info *tx_info;
1896 struct mwl8k_vif *mwl8k_vif;
1897 struct ieee80211_hdr *wh;
1898 struct mwl8k_tx_queue *txq;
1899 struct mwl8k_tx_desc *tx;
1906 struct mwl8k_ampdu_stream *stream = NULL;
1907 bool start_ba_session = false;
1908 bool mgmtframe = false;
1909 struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *)skb->data;
1910 bool eapol_frame = false;
1912 wh = (struct ieee80211_hdr *)skb->data;
1913 if (ieee80211_is_data_qos(wh->frame_control))
1914 qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh)));
1918 if (skb->protocol == cpu_to_be16(ETH_P_PAE))
1921 if (ieee80211_is_mgmt(wh->frame_control))
1925 mwl8k_encapsulate_tx_frame(priv, skb);
1927 mwl8k_add_dma_header(priv, skb, 0, 0);
1929 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1931 tx_info = IEEE80211_SKB_CB(skb);
1932 mwl8k_vif = MWL8K_VIF(tx_info->control.vif);
1934 if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
1935 wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
1936 wh->seq_ctrl |= cpu_to_le16(mwl8k_vif->seqno);
1937 mwl8k_vif->seqno += 0x10;
1940 /* Setup firmware control bit fields for each frame type. */
1943 if (ieee80211_is_mgmt(wh->frame_control) ||
1944 ieee80211_is_ctl(wh->frame_control)) {
1946 qos |= MWL8K_QOS_QLEN_UNSPEC | MWL8K_QOS_EOSP;
1947 } else if (ieee80211_is_data(wh->frame_control)) {
1949 if (is_multicast_ether_addr(wh->addr1))
1950 txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX;
1952 qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
1953 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
1954 qos |= MWL8K_QOS_ACK_POLICY_BLOCKACK;
1956 qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
1959 /* Queue ADDBA request in the respective data queue. While setting up
1960 * the ampdu stream, mac80211 queues further packets for that
1961 * particular ra/tid pair. However, packets piled up in the hardware
1962 * for that ra/tid pair will still go out. ADDBA request and the
1963 * related data packets going out from different queues asynchronously
1964 * will cause a shift in the receiver window which might result in
1965 * ampdu packets getting dropped at the receiver after the stream has
1968 if (unlikely(ieee80211_is_action(wh->frame_control) &&
1969 mgmt->u.action.category == WLAN_CATEGORY_BACK &&
1970 mgmt->u.action.u.addba_req.action_code == WLAN_ACTION_ADDBA_REQ &&
1972 u16 capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
1973 tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
1974 index = mwl8k_tid_queue_mapping(tid);
1979 if (priv->ap_fw && sta && sta->ht_cap.ht_supported && !eapol_frame &&
1980 ieee80211_is_data_qos(wh->frame_control)) {
1982 mwl8k_tx_count_packet(sta, tid);
1983 spin_lock(&priv->stream_lock);
1984 stream = mwl8k_lookup_stream(hw, sta->addr, tid);
1985 if (stream != NULL) {
1986 if (stream->state == AMPDU_STREAM_ACTIVE) {
1987 WARN_ON(!(qos & MWL8K_QOS_ACK_POLICY_BLOCKACK));
1988 txpriority = (BA_QUEUE + stream->idx) %
1990 if (stream->idx <= 1)
1991 index = stream->idx +
1992 MWL8K_TX_WMM_QUEUES;
1994 } else if (stream->state == AMPDU_STREAM_NEW) {
1995 /* We get here if the driver sends us packets
1996 * after we've initiated a stream, but before
1997 * our ampdu_action routine has been called
1998 * with IEEE80211_AMPDU_TX_START to get the SSN
1999 * for the ADDBA request. So this packet can
2000 * go out with no risk of sequence number
2001 * mismatch. No special handling is required.
2004 /* Drop packets that would go out after the
2005 * ADDBA request was sent but before the ADDBA
2006 * response is received. If we don't do this,
2007 * the recipient would probably receive it
2008 * after the ADDBA request with SSN 0. This
2009 * will cause the recipient's BA receive window
2010 * to shift, which would cause the subsequent
2011 * packets in the BA stream to be discarded.
2012 * mac80211 queues our packets for us in this
2013 * case, so this is really just a safety check.
2015 wiphy_warn(hw->wiphy,
2016 "Cannot send packet while ADDBA "
2017 "dialog is underway.\n");
2018 spin_unlock(&priv->stream_lock);
2023 /* Defer calling mwl8k_start_stream so that the current
2024 * skb can go out before the ADDBA request. This
2025 * prevents sequence number mismatch at the recepient
2026 * as described above.
2028 if (mwl8k_ampdu_allowed(sta, tid)) {
2029 stream = mwl8k_add_stream(hw, sta, tid);
2031 start_ba_session = true;
2034 spin_unlock(&priv->stream_lock);
2036 qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
2037 qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
2040 dma = pci_map_single(priv->pdev, skb->data,
2041 skb->len, PCI_DMA_TODEVICE);
2043 if (pci_dma_mapping_error(priv->pdev, dma)) {
2044 wiphy_debug(hw->wiphy,
2045 "failed to dma map skb, dropping TX frame.\n");
2046 if (start_ba_session) {
2047 spin_lock(&priv->stream_lock);
2048 mwl8k_remove_stream(hw, stream);
2049 spin_unlock(&priv->stream_lock);
2055 spin_lock_bh(&priv->tx_lock);
2057 txq = priv->txq + index;
2059 /* Mgmt frames that go out frequently are probe
2060 * responses. Other mgmt frames got out relatively
2061 * infrequently. Hence reserve 2 buffers so that
2062 * other mgmt frames do not get dropped due to an
2063 * already queued probe response in one of the
2067 if (txq->len >= MWL8K_TX_DESCS - 2) {
2068 if (!mgmtframe || txq->len == MWL8K_TX_DESCS) {
2069 if (start_ba_session) {
2070 spin_lock(&priv->stream_lock);
2071 mwl8k_remove_stream(hw, stream);
2072 spin_unlock(&priv->stream_lock);
2074 mwl8k_tx_start(priv);
2075 spin_unlock_bh(&priv->tx_lock);
2076 pci_unmap_single(priv->pdev, dma, skb->len,
2083 BUG_ON(txq->skb[txq->tail] != NULL);
2084 txq->skb[txq->tail] = skb;
2086 tx = txq->txd + txq->tail;
2087 tx->data_rate = txdatarate;
2088 tx->tx_priority = txpriority;
2089 tx->qos_control = cpu_to_le16(qos);
2090 tx->pkt_phys_addr = cpu_to_le32(dma);
2091 tx->pkt_len = cpu_to_le16(skb->len);
2093 if (!priv->ap_fw && sta != NULL)
2094 tx->peer_id = MWL8K_STA(sta)->peer_id;
2098 if (priv->ap_fw && ieee80211_is_data(wh->frame_control) && !eapol_frame)
2099 tx->timestamp = cpu_to_le32(ioread32(priv->regs +
2100 MWL8K_HW_TIMER_REGISTER));
2105 tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus);
2108 priv->pending_tx_pkts++;
2111 if (txq->tail == MWL8K_TX_DESCS)
2114 mwl8k_tx_start(priv);
2116 spin_unlock_bh(&priv->tx_lock);
2118 /* Initiate the ampdu session here */
2119 if (start_ba_session) {
2120 spin_lock(&priv->stream_lock);
2121 if (mwl8k_start_stream(hw, stream))
2122 mwl8k_remove_stream(hw, stream);
2123 spin_unlock(&priv->stream_lock);
2131 * We have the following requirements for issuing firmware commands:
2132 * - Some commands require that the packet transmit path is idle when
2133 * the command is issued. (For simplicity, we'll just quiesce the
2134 * transmit path for every command.)
2135 * - There are certain sequences of commands that need to be issued to
2136 * the hardware sequentially, with no other intervening commands.
2138 * This leads to an implementation of a "firmware lock" as a mutex that
2139 * can be taken recursively, and which is taken by both the low-level
2140 * command submission function (mwl8k_post_cmd) as well as any users of
2141 * that function that require issuing of an atomic sequence of commands,
2142 * and quiesces the transmit path whenever it's taken.
2144 static int mwl8k_fw_lock(struct ieee80211_hw *hw)
2146 struct mwl8k_priv *priv = hw->priv;
2148 if (priv->fw_mutex_owner != current) {
2151 mutex_lock(&priv->fw_mutex);
2152 ieee80211_stop_queues(hw);
2154 rc = mwl8k_tx_wait_empty(hw);
2156 if (!priv->hw_restart_in_progress)
2157 ieee80211_wake_queues(hw);
2159 mutex_unlock(&priv->fw_mutex);
2164 priv->fw_mutex_owner = current;
2167 priv->fw_mutex_depth++;
2172 static void mwl8k_fw_unlock(struct ieee80211_hw *hw)
2174 struct mwl8k_priv *priv = hw->priv;
2176 if (!--priv->fw_mutex_depth) {
2177 if (!priv->hw_restart_in_progress)
2178 ieee80211_wake_queues(hw);
2180 priv->fw_mutex_owner = NULL;
2181 mutex_unlock(&priv->fw_mutex);
2185 static void mwl8k_enable_bsses(struct ieee80211_hw *hw, bool enable,
2189 * Command processing.
2192 /* Timeout firmware commands after 10s */
2193 #define MWL8K_CMD_TIMEOUT_MS 10000
2195 static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd)
2197 DECLARE_COMPLETION_ONSTACK(cmd_wait);
2198 struct mwl8k_priv *priv = hw->priv;
2199 void __iomem *regs = priv->regs;
2200 dma_addr_t dma_addr;
2201 unsigned int dma_size;
2203 unsigned long timeout = 0;
2207 wiphy_dbg(hw->wiphy, "Posting %s [%d]\n",
2208 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)), cmd->macid);
2210 /* Before posting firmware commands that could change the hardware
2211 * characteristics, make sure that all BSSes are stopped temporary.
2212 * Enable these stopped BSSes after completion of the commands
2215 rc = mwl8k_fw_lock(hw);
2219 if (priv->ap_fw && priv->running_bsses) {
2220 switch (le16_to_cpu(cmd->code)) {
2221 case MWL8K_CMD_SET_RF_CHANNEL:
2222 case MWL8K_CMD_RADIO_CONTROL:
2223 case MWL8K_CMD_RF_TX_POWER:
2224 case MWL8K_CMD_TX_POWER:
2225 case MWL8K_CMD_RF_ANTENNA:
2226 case MWL8K_CMD_RTS_THRESHOLD:
2227 case MWL8K_CMD_MIMO_CONFIG:
2228 bitmap = priv->running_bsses;
2229 mwl8k_enable_bsses(hw, false, bitmap);
2234 cmd->result = (__force __le16) 0xffff;
2235 dma_size = le16_to_cpu(cmd->length);
2236 dma_addr = pci_map_single(priv->pdev, cmd, dma_size,
2237 PCI_DMA_BIDIRECTIONAL);
2238 if (pci_dma_mapping_error(priv->pdev, dma_addr))
2241 priv->hostcmd_wait = &cmd_wait;
2242 iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
2243 iowrite32(MWL8K_H2A_INT_DOORBELL,
2244 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
2245 iowrite32(MWL8K_H2A_INT_DUMMY,
2246 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
2248 timeout = wait_for_completion_timeout(&cmd_wait,
2249 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS));
2251 priv->hostcmd_wait = NULL;
2254 pci_unmap_single(priv->pdev, dma_addr, dma_size,
2255 PCI_DMA_BIDIRECTIONAL);
2258 wiphy_err(hw->wiphy, "Command %s timeout after %u ms\n",
2259 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
2260 MWL8K_CMD_TIMEOUT_MS);
2265 ms = MWL8K_CMD_TIMEOUT_MS - jiffies_to_msecs(timeout);
2267 rc = cmd->result ? -EINVAL : 0;
2269 wiphy_err(hw->wiphy, "Command %s error 0x%x\n",
2270 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
2271 le16_to_cpu(cmd->result));
2273 wiphy_notice(hw->wiphy, "Command %s took %d ms\n",
2274 mwl8k_cmd_name(cmd->code,
2280 mwl8k_enable_bsses(hw, true, bitmap);
2282 mwl8k_fw_unlock(hw);
2287 static int mwl8k_post_pervif_cmd(struct ieee80211_hw *hw,
2288 struct ieee80211_vif *vif,
2289 struct mwl8k_cmd_pkt *cmd)
2292 cmd->macid = MWL8K_VIF(vif)->macid;
2293 return mwl8k_post_cmd(hw, cmd);
2297 * Setup code shared between STA and AP firmware images.
2299 static void mwl8k_setup_2ghz_band(struct ieee80211_hw *hw)
2301 struct mwl8k_priv *priv = hw->priv;
2303 BUILD_BUG_ON(sizeof(priv->channels_24) != sizeof(mwl8k_channels_24));
2304 memcpy(priv->channels_24, mwl8k_channels_24, sizeof(mwl8k_channels_24));
2306 BUILD_BUG_ON(sizeof(priv->rates_24) != sizeof(mwl8k_rates_24));
2307 memcpy(priv->rates_24, mwl8k_rates_24, sizeof(mwl8k_rates_24));
2309 priv->band_24.band = NL80211_BAND_2GHZ;
2310 priv->band_24.channels = priv->channels_24;
2311 priv->band_24.n_channels = ARRAY_SIZE(mwl8k_channels_24);
2312 priv->band_24.bitrates = priv->rates_24;
2313 priv->band_24.n_bitrates = ARRAY_SIZE(mwl8k_rates_24);
2315 hw->wiphy->bands[NL80211_BAND_2GHZ] = &priv->band_24;
2318 static void mwl8k_setup_5ghz_band(struct ieee80211_hw *hw)
2320 struct mwl8k_priv *priv = hw->priv;
2322 BUILD_BUG_ON(sizeof(priv->channels_50) != sizeof(mwl8k_channels_50));
2323 memcpy(priv->channels_50, mwl8k_channels_50, sizeof(mwl8k_channels_50));
2325 BUILD_BUG_ON(sizeof(priv->rates_50) != sizeof(mwl8k_rates_50));
2326 memcpy(priv->rates_50, mwl8k_rates_50, sizeof(mwl8k_rates_50));
2328 priv->band_50.band = NL80211_BAND_5GHZ;
2329 priv->band_50.channels = priv->channels_50;
2330 priv->band_50.n_channels = ARRAY_SIZE(mwl8k_channels_50);
2331 priv->band_50.bitrates = priv->rates_50;
2332 priv->band_50.n_bitrates = ARRAY_SIZE(mwl8k_rates_50);
2334 hw->wiphy->bands[NL80211_BAND_5GHZ] = &priv->band_50;
2338 * CMD_GET_HW_SPEC (STA version).
2340 struct mwl8k_cmd_get_hw_spec_sta {
2341 struct mwl8k_cmd_pkt header;
2343 __u8 host_interface;
2345 __u8 perm_addr[ETH_ALEN];
2350 __u8 mcs_bitmap[16];
2351 __le32 rx_queue_ptr;
2352 __le32 num_tx_queues;
2353 __le32 tx_queue_ptrs[MWL8K_TX_WMM_QUEUES];
2355 __le32 num_tx_desc_per_queue;
2359 #define MWL8K_CAP_MAX_AMSDU 0x20000000
2360 #define MWL8K_CAP_GREENFIELD 0x08000000
2361 #define MWL8K_CAP_AMPDU 0x04000000
2362 #define MWL8K_CAP_RX_STBC 0x01000000
2363 #define MWL8K_CAP_TX_STBC 0x00800000
2364 #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000
2365 #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000
2366 #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000
2367 #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000
2368 #define MWL8K_CAP_DELAY_BA 0x00003000
2369 #define MWL8K_CAP_MIMO 0x00000200
2370 #define MWL8K_CAP_40MHZ 0x00000100
2371 #define MWL8K_CAP_BAND_MASK 0x00000007
2372 #define MWL8K_CAP_5GHZ 0x00000004
2373 #define MWL8K_CAP_2GHZ4 0x00000001
2376 mwl8k_set_ht_caps(struct ieee80211_hw *hw,
2377 struct ieee80211_supported_band *band, u32 cap)
2382 band->ht_cap.ht_supported = 1;
2384 if (cap & MWL8K_CAP_MAX_AMSDU)
2385 band->ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
2386 if (cap & MWL8K_CAP_GREENFIELD)
2387 band->ht_cap.cap |= IEEE80211_HT_CAP_GRN_FLD;
2388 if (cap & MWL8K_CAP_AMPDU) {
2389 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
2390 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
2391 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
2393 if (cap & MWL8K_CAP_RX_STBC)
2394 band->ht_cap.cap |= IEEE80211_HT_CAP_RX_STBC;
2395 if (cap & MWL8K_CAP_TX_STBC)
2396 band->ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
2397 if (cap & MWL8K_CAP_SHORTGI_40MHZ)
2398 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
2399 if (cap & MWL8K_CAP_SHORTGI_20MHZ)
2400 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
2401 if (cap & MWL8K_CAP_DELAY_BA)
2402 band->ht_cap.cap |= IEEE80211_HT_CAP_DELAY_BA;
2403 if (cap & MWL8K_CAP_40MHZ)
2404 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
2406 rx_streams = hweight32(cap & MWL8K_CAP_RX_ANTENNA_MASK);
2407 tx_streams = hweight32(cap & MWL8K_CAP_TX_ANTENNA_MASK);
2409 band->ht_cap.mcs.rx_mask[0] = 0xff;
2410 if (rx_streams >= 2)
2411 band->ht_cap.mcs.rx_mask[1] = 0xff;
2412 if (rx_streams >= 3)
2413 band->ht_cap.mcs.rx_mask[2] = 0xff;
2414 band->ht_cap.mcs.rx_mask[4] = 0x01;
2415 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
2417 if (rx_streams != tx_streams) {
2418 band->ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
2419 band->ht_cap.mcs.tx_params |= (tx_streams - 1) <<
2420 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
2425 mwl8k_set_caps(struct ieee80211_hw *hw, u32 caps)
2427 struct mwl8k_priv *priv = hw->priv;
2432 if ((caps & MWL8K_CAP_2GHZ4) || !(caps & MWL8K_CAP_BAND_MASK)) {
2433 mwl8k_setup_2ghz_band(hw);
2434 if (caps & MWL8K_CAP_MIMO)
2435 mwl8k_set_ht_caps(hw, &priv->band_24, caps);
2438 if (caps & MWL8K_CAP_5GHZ) {
2439 mwl8k_setup_5ghz_band(hw);
2440 if (caps & MWL8K_CAP_MIMO)
2441 mwl8k_set_ht_caps(hw, &priv->band_50, caps);
2447 static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw *hw)
2449 struct mwl8k_priv *priv = hw->priv;
2450 struct mwl8k_cmd_get_hw_spec_sta *cmd;
2454 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2458 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
2459 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2461 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
2462 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2463 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
2464 cmd->num_tx_queues = cpu_to_le32(mwl8k_tx_queues(priv));
2465 for (i = 0; i < mwl8k_tx_queues(priv); i++)
2466 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma);
2467 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
2468 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
2470 rc = mwl8k_post_cmd(hw, &cmd->header);
2473 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
2474 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
2475 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
2476 priv->hw_rev = cmd->hw_rev;
2477 mwl8k_set_caps(hw, le32_to_cpu(cmd->caps));
2478 priv->ap_macids_supported = 0x00000000;
2479 priv->sta_macids_supported = 0x00000001;
2487 * CMD_GET_HW_SPEC (AP version).
2489 struct mwl8k_cmd_get_hw_spec_ap {
2490 struct mwl8k_cmd_pkt header;
2492 __u8 host_interface;
2495 __u8 perm_addr[ETH_ALEN];
2506 __le32 fw_api_version;
2508 __le32 num_of_ampdu_queues;
2509 __le32 wcbbase_ampdu[MWL8K_MAX_AMPDU_QUEUES];
2512 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw)
2514 struct mwl8k_priv *priv = hw->priv;
2515 struct mwl8k_cmd_get_hw_spec_ap *cmd;
2519 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2523 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
2524 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2526 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
2527 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2529 rc = mwl8k_post_cmd(hw, &cmd->header);
2534 api_version = le32_to_cpu(cmd->fw_api_version);
2535 if (priv->device_info->fw_api_ap != api_version) {
2536 printk(KERN_ERR "%s: Unsupported fw API version for %s."
2537 " Expected %d got %d.\n", MWL8K_NAME,
2538 priv->device_info->part_name,
2539 priv->device_info->fw_api_ap,
2544 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
2545 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
2546 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
2547 priv->hw_rev = cmd->hw_rev;
2548 mwl8k_set_caps(hw, le32_to_cpu(cmd->caps));
2549 priv->ap_macids_supported = 0x000000ff;
2550 priv->sta_macids_supported = 0x00000100;
2551 priv->num_ampdu_queues = le32_to_cpu(cmd->num_of_ampdu_queues);
2552 if (priv->num_ampdu_queues > MWL8K_MAX_AMPDU_QUEUES) {
2553 wiphy_warn(hw->wiphy, "fw reported %d ampdu queues"
2554 " but we only support %d.\n",
2555 priv->num_ampdu_queues,
2556 MWL8K_MAX_AMPDU_QUEUES);
2557 priv->num_ampdu_queues = MWL8K_MAX_AMPDU_QUEUES;
2559 off = le32_to_cpu(cmd->rxwrptr) & 0xffff;
2560 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2562 off = le32_to_cpu(cmd->rxrdptr) & 0xffff;
2563 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
2565 priv->txq_offset[0] = le32_to_cpu(cmd->wcbbase0) & 0xffff;
2566 priv->txq_offset[1] = le32_to_cpu(cmd->wcbbase1) & 0xffff;
2567 priv->txq_offset[2] = le32_to_cpu(cmd->wcbbase2) & 0xffff;
2568 priv->txq_offset[3] = le32_to_cpu(cmd->wcbbase3) & 0xffff;
2570 for (i = 0; i < priv->num_ampdu_queues; i++)
2571 priv->txq_offset[i + MWL8K_TX_WMM_QUEUES] =
2572 le32_to_cpu(cmd->wcbbase_ampdu[i]) & 0xffff;
2583 struct mwl8k_cmd_set_hw_spec {
2584 struct mwl8k_cmd_pkt header;
2586 __u8 host_interface;
2588 __u8 perm_addr[ETH_ALEN];
2593 __le32 rx_queue_ptr;
2594 __le32 num_tx_queues;
2595 __le32 tx_queue_ptrs[MWL8K_MAX_TX_QUEUES];
2597 __le32 num_tx_desc_per_queue;
2601 /* If enabled, MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY will cause
2602 * packets to expire 500 ms after the timestamp in the tx descriptor. That is,
2603 * the packets that are queued for more than 500ms, will be dropped in the
2604 * hardware. This helps minimizing the issues caused due to head-of-line
2605 * blocking where a slow client can hog the bandwidth and affect traffic to a
2608 #define MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY 0x00000400
2609 #define MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR 0x00000200
2610 #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
2611 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
2612 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
2614 static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw *hw)
2616 struct mwl8k_priv *priv = hw->priv;
2617 struct mwl8k_cmd_set_hw_spec *cmd;
2621 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2625 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_HW_SPEC);
2626 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2628 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
2629 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
2630 cmd->num_tx_queues = cpu_to_le32(mwl8k_tx_queues(priv));
2633 * Mac80211 stack has Q0 as highest priority and Q3 as lowest in
2634 * that order. Firmware has Q3 as highest priority and Q0 as lowest
2635 * in that order. Map Q3 of mac80211 to Q0 of firmware so that the
2636 * priority is interpreted the right way in firmware.
2638 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
2639 int j = mwl8k_tx_queues(priv) - 1 - i;
2640 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[j].txd_dma);
2643 cmd->flags = cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT |
2644 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP |
2645 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON |
2646 MWL8K_SET_HW_SPEC_FLAG_ENABLE_LIFE_TIME_EXPIRY |
2647 MWL8K_SET_HW_SPEC_FLAG_GENERATE_CCMP_HDR);
2648 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
2649 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
2651 rc = mwl8k_post_cmd(hw, &cmd->header);
2658 * CMD_MAC_MULTICAST_ADR.
2660 struct mwl8k_cmd_mac_multicast_adr {
2661 struct mwl8k_cmd_pkt header;
2664 __u8 addr[0][ETH_ALEN];
2667 #define MWL8K_ENABLE_RX_DIRECTED 0x0001
2668 #define MWL8K_ENABLE_RX_MULTICAST 0x0002
2669 #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
2670 #define MWL8K_ENABLE_RX_BROADCAST 0x0008
2672 static struct mwl8k_cmd_pkt *
2673 __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti,
2674 struct netdev_hw_addr_list *mc_list)
2676 struct mwl8k_priv *priv = hw->priv;
2677 struct mwl8k_cmd_mac_multicast_adr *cmd;
2682 mc_count = netdev_hw_addr_list_count(mc_list);
2684 if (allmulti || mc_count > priv->num_mcaddrs) {
2689 size = sizeof(*cmd) + mc_count * ETH_ALEN;
2691 cmd = kzalloc(size, GFP_ATOMIC);
2695 cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR);
2696 cmd->header.length = cpu_to_le16(size);
2697 cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED |
2698 MWL8K_ENABLE_RX_BROADCAST);
2701 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST);
2702 } else if (mc_count) {
2703 struct netdev_hw_addr *ha;
2706 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST);
2707 cmd->numaddr = cpu_to_le16(mc_count);
2708 netdev_hw_addr_list_for_each(ha, mc_list) {
2709 memcpy(cmd->addr[i], ha->addr, ETH_ALEN);
2713 return &cmd->header;
2719 struct mwl8k_cmd_get_stat {
2720 struct mwl8k_cmd_pkt header;
2724 #define MWL8K_STAT_ACK_FAILURE 9
2725 #define MWL8K_STAT_RTS_FAILURE 12
2726 #define MWL8K_STAT_FCS_ERROR 24
2727 #define MWL8K_STAT_RTS_SUCCESS 11
2729 static int mwl8k_cmd_get_stat(struct ieee80211_hw *hw,
2730 struct ieee80211_low_level_stats *stats)
2732 struct mwl8k_cmd_get_stat *cmd;
2735 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2739 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT);
2740 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2742 rc = mwl8k_post_cmd(hw, &cmd->header);
2744 stats->dot11ACKFailureCount =
2745 le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]);
2746 stats->dot11RTSFailureCount =
2747 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]);
2748 stats->dot11FCSErrorCount =
2749 le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]);
2750 stats->dot11RTSSuccessCount =
2751 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]);
2759 * CMD_RADIO_CONTROL.
2761 struct mwl8k_cmd_radio_control {
2762 struct mwl8k_cmd_pkt header;
2769 mwl8k_cmd_radio_control(struct ieee80211_hw *hw, bool enable, bool force)
2771 struct mwl8k_priv *priv = hw->priv;
2772 struct mwl8k_cmd_radio_control *cmd;
2775 if (enable == priv->radio_on && !force)
2778 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2782 cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL);
2783 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2784 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2785 cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1);
2786 cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000);
2788 rc = mwl8k_post_cmd(hw, &cmd->header);
2792 priv->radio_on = enable;
2797 static int mwl8k_cmd_radio_disable(struct ieee80211_hw *hw)
2799 return mwl8k_cmd_radio_control(hw, 0, 0);
2802 static int mwl8k_cmd_radio_enable(struct ieee80211_hw *hw)
2804 return mwl8k_cmd_radio_control(hw, 1, 0);
2808 mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble)
2810 struct mwl8k_priv *priv = hw->priv;
2812 priv->radio_short_preamble = short_preamble;
2814 return mwl8k_cmd_radio_control(hw, 1, 1);
2820 #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8
2822 struct mwl8k_cmd_rf_tx_power {
2823 struct mwl8k_cmd_pkt header;
2825 __le16 support_level;
2826 __le16 current_level;
2828 __le16 power_level_list[MWL8K_RF_TX_POWER_LEVEL_TOTAL];
2831 static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw *hw, int dBm)
2833 struct mwl8k_cmd_rf_tx_power *cmd;
2836 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2840 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER);
2841 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2842 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2843 cmd->support_level = cpu_to_le16(dBm);
2845 rc = mwl8k_post_cmd(hw, &cmd->header);
2854 #define MWL8K_TX_POWER_LEVEL_TOTAL 12
2856 struct mwl8k_cmd_tx_power {
2857 struct mwl8k_cmd_pkt header;
2863 __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL];
2866 static int mwl8k_cmd_tx_power(struct ieee80211_hw *hw,
2867 struct ieee80211_conf *conf,
2870 struct ieee80211_channel *channel = conf->chandef.chan;
2871 enum nl80211_channel_type channel_type =
2872 cfg80211_get_chandef_type(&conf->chandef);
2873 struct mwl8k_cmd_tx_power *cmd;
2877 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2881 cmd->header.code = cpu_to_le16(MWL8K_CMD_TX_POWER);
2882 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2883 cmd->action = cpu_to_le16(MWL8K_CMD_SET_LIST);
2885 if (channel->band == NL80211_BAND_2GHZ)
2886 cmd->band = cpu_to_le16(0x1);
2887 else if (channel->band == NL80211_BAND_5GHZ)
2888 cmd->band = cpu_to_le16(0x4);
2890 cmd->channel = cpu_to_le16(channel->hw_value);
2892 if (channel_type == NL80211_CHAN_NO_HT ||
2893 channel_type == NL80211_CHAN_HT20) {
2894 cmd->bw = cpu_to_le16(0x2);
2896 cmd->bw = cpu_to_le16(0x4);
2897 if (channel_type == NL80211_CHAN_HT40MINUS)
2898 cmd->sub_ch = cpu_to_le16(0x3);
2899 else if (channel_type == NL80211_CHAN_HT40PLUS)
2900 cmd->sub_ch = cpu_to_le16(0x1);
2903 for (i = 0; i < MWL8K_TX_POWER_LEVEL_TOTAL; i++)
2904 cmd->power_level_list[i] = cpu_to_le16(pwr);
2906 rc = mwl8k_post_cmd(hw, &cmd->header);
2915 struct mwl8k_cmd_rf_antenna {
2916 struct mwl8k_cmd_pkt header;
2921 #define MWL8K_RF_ANTENNA_RX 1
2922 #define MWL8K_RF_ANTENNA_TX 2
2925 mwl8k_cmd_rf_antenna(struct ieee80211_hw *hw, int antenna, int mask)
2927 struct mwl8k_cmd_rf_antenna *cmd;
2930 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2934 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_ANTENNA);
2935 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2936 cmd->antenna = cpu_to_le16(antenna);
2937 cmd->mode = cpu_to_le16(mask);
2939 rc = mwl8k_post_cmd(hw, &cmd->header);
2948 struct mwl8k_cmd_set_beacon {
2949 struct mwl8k_cmd_pkt header;
2954 static int mwl8k_cmd_set_beacon(struct ieee80211_hw *hw,
2955 struct ieee80211_vif *vif, u8 *beacon, int len)
2957 struct mwl8k_cmd_set_beacon *cmd;
2960 cmd = kzalloc(sizeof(*cmd) + len, GFP_KERNEL);
2964 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_BEACON);
2965 cmd->header.length = cpu_to_le16(sizeof(*cmd) + len);
2966 cmd->beacon_len = cpu_to_le16(len);
2967 memcpy(cmd->beacon, beacon, len);
2969 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
2978 struct mwl8k_cmd_set_pre_scan {
2979 struct mwl8k_cmd_pkt header;
2982 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw)
2984 struct mwl8k_cmd_set_pre_scan *cmd;
2987 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2991 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN);
2992 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2994 rc = mwl8k_post_cmd(hw, &cmd->header);
3001 * CMD_BBP_REG_ACCESS.
3003 struct mwl8k_cmd_bbp_reg_access {
3004 struct mwl8k_cmd_pkt header;
3012 mwl8k_cmd_bbp_reg_access(struct ieee80211_hw *hw,
3017 struct mwl8k_cmd_bbp_reg_access *cmd;
3020 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3024 cmd->header.code = cpu_to_le16(MWL8K_CMD_BBP_REG_ACCESS);
3025 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3026 cmd->action = cpu_to_le16(action);
3027 cmd->offset = cpu_to_le16(offset);
3029 rc = mwl8k_post_cmd(hw, &cmd->header);
3032 *value = cmd->value;
3042 * CMD_SET_POST_SCAN.
3044 struct mwl8k_cmd_set_post_scan {
3045 struct mwl8k_cmd_pkt header;
3047 __u8 bssid[ETH_ALEN];
3051 mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, const __u8 *mac)
3053 struct mwl8k_cmd_set_post_scan *cmd;
3056 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3060 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN);
3061 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3063 memcpy(cmd->bssid, mac, ETH_ALEN);
3065 rc = mwl8k_post_cmd(hw, &cmd->header);
3071 static int freq_to_idx(struct mwl8k_priv *priv, int freq)
3073 struct ieee80211_supported_band *sband;
3074 int band, ch, idx = 0;
3076 for (band = NL80211_BAND_2GHZ; band < NUM_NL80211_BANDS; band++) {
3077 sband = priv->hw->wiphy->bands[band];
3081 for (ch = 0; ch < sband->n_channels; ch++, idx++)
3082 if (sband->channels[ch].center_freq == freq)
3090 static void mwl8k_update_survey(struct mwl8k_priv *priv,
3091 struct ieee80211_channel *channel)
3093 u32 cca_cnt, rx_rdy;
3095 struct survey_info *survey;
3097 idx = freq_to_idx(priv, priv->acs_chan->center_freq);
3098 if (idx >= MWL8K_NUM_CHANS) {
3099 wiphy_err(priv->hw->wiphy, "Failed to update survey\n");
3103 survey = &priv->survey[idx];
3105 cca_cnt = ioread32(priv->regs + NOK_CCA_CNT_REG);
3106 cca_cnt /= 1000; /* uSecs to mSecs */
3107 survey->time_busy = (u64) cca_cnt;
3109 rx_rdy = ioread32(priv->regs + BBU_RXRDY_CNT_REG);
3110 rx_rdy /= 1000; /* uSecs to mSecs */
3111 survey->time_rx = (u64) rx_rdy;
3113 priv->channel_time = jiffies - priv->channel_time;
3114 survey->time = jiffies_to_msecs(priv->channel_time);
3116 survey->channel = channel;
3118 mwl8k_cmd_bbp_reg_access(priv->hw, 0, BBU_AVG_NOISE_VAL, &nf);
3120 /* Make sure sign is negative else ACS at hostapd fails */
3121 survey->noise = nf * -1;
3123 survey->filled = SURVEY_INFO_NOISE_DBM |
3125 SURVEY_INFO_TIME_BUSY |
3126 SURVEY_INFO_TIME_RX;
3130 * CMD_SET_RF_CHANNEL.
3132 struct mwl8k_cmd_set_rf_channel {
3133 struct mwl8k_cmd_pkt header;
3135 __u8 current_channel;
3136 __le32 channel_flags;
3139 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw,
3140 struct ieee80211_conf *conf)
3142 struct ieee80211_channel *channel = conf->chandef.chan;
3143 enum nl80211_channel_type channel_type =
3144 cfg80211_get_chandef_type(&conf->chandef);
3145 struct mwl8k_cmd_set_rf_channel *cmd;
3146 struct mwl8k_priv *priv = hw->priv;
3149 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3153 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL);
3154 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3155 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3156 cmd->current_channel = channel->hw_value;
3158 if (channel->band == NL80211_BAND_2GHZ)
3159 cmd->channel_flags |= cpu_to_le32(0x00000001);
3160 else if (channel->band == NL80211_BAND_5GHZ)
3161 cmd->channel_flags |= cpu_to_le32(0x00000004);
3163 if (!priv->sw_scan_start) {
3164 if (channel_type == NL80211_CHAN_NO_HT ||
3165 channel_type == NL80211_CHAN_HT20)
3166 cmd->channel_flags |= cpu_to_le32(0x00000080);
3167 else if (channel_type == NL80211_CHAN_HT40MINUS)
3168 cmd->channel_flags |= cpu_to_le32(0x000001900);
3169 else if (channel_type == NL80211_CHAN_HT40PLUS)
3170 cmd->channel_flags |= cpu_to_le32(0x000000900);
3172 cmd->channel_flags |= cpu_to_le32(0x00000080);
3175 if (priv->sw_scan_start) {
3176 /* Store current channel stats
3177 * before switching to newer one.
3178 * This will be processed only for AP fw.
3180 if (priv->channel_time != 0)
3181 mwl8k_update_survey(priv, priv->acs_chan);
3183 priv->channel_time = jiffies;
3184 priv->acs_chan = channel;
3187 rc = mwl8k_post_cmd(hw, &cmd->header);
3196 #define MWL8K_FRAME_PROT_DISABLED 0x00
3197 #define MWL8K_FRAME_PROT_11G 0x07
3198 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
3199 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
3201 struct mwl8k_cmd_update_set_aid {
3202 struct mwl8k_cmd_pkt header;
3205 /* AP's MAC address (BSSID) */
3206 __u8 bssid[ETH_ALEN];
3207 __le16 protection_mode;
3208 __u8 supp_rates[14];
3211 static void legacy_rate_mask_to_array(u8 *rates, u32 mask)
3217 * Clear nonstandard rate 4.
3221 for (i = 0, j = 0; i < 13; i++) {
3222 if (mask & (1 << i))
3223 rates[j++] = mwl8k_rates_24[i].hw_value;
3228 mwl8k_cmd_set_aid(struct ieee80211_hw *hw,
3229 struct ieee80211_vif *vif, u32 legacy_rate_mask)
3231 struct mwl8k_cmd_update_set_aid *cmd;
3235 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3239 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID);
3240 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3241 cmd->aid = cpu_to_le16(vif->bss_conf.aid);
3242 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
3244 if (vif->bss_conf.use_cts_prot) {
3245 prot_mode = MWL8K_FRAME_PROT_11G;
3247 switch (vif->bss_conf.ht_operation_mode &
3248 IEEE80211_HT_OP_MODE_PROTECTION) {
3249 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
3250 prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY;
3252 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
3253 prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL;
3256 prot_mode = MWL8K_FRAME_PROT_DISABLED;
3260 cmd->protection_mode = cpu_to_le16(prot_mode);
3262 legacy_rate_mask_to_array(cmd->supp_rates, legacy_rate_mask);
3264 rc = mwl8k_post_cmd(hw, &cmd->header);
3273 struct mwl8k_cmd_set_rate {
3274 struct mwl8k_cmd_pkt header;
3275 __u8 legacy_rates[14];
3277 /* Bitmap for supported MCS codes. */
3283 mwl8k_cmd_set_rate(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3284 u32 legacy_rate_mask, u8 *mcs_rates)
3286 struct mwl8k_cmd_set_rate *cmd;
3289 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3293 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE);
3294 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3295 legacy_rate_mask_to_array(cmd->legacy_rates, legacy_rate_mask);
3296 memcpy(cmd->mcs_set, mcs_rates, 16);
3298 rc = mwl8k_post_cmd(hw, &cmd->header);
3305 * CMD_FINALIZE_JOIN.
3307 #define MWL8K_FJ_BEACON_MAXLEN 128
3309 struct mwl8k_cmd_finalize_join {
3310 struct mwl8k_cmd_pkt header;
3311 __le32 sleep_interval; /* Number of beacon periods to sleep */
3312 __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN];
3315 static int mwl8k_cmd_finalize_join(struct ieee80211_hw *hw, void *frame,
3316 int framelen, int dtim)
3318 struct mwl8k_cmd_finalize_join *cmd;
3319 struct ieee80211_mgmt *payload = frame;
3323 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3327 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN);
3328 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3329 cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1);
3331 payload_len = framelen - ieee80211_hdrlen(payload->frame_control);
3332 if (payload_len < 0)
3334 else if (payload_len > MWL8K_FJ_BEACON_MAXLEN)
3335 payload_len = MWL8K_FJ_BEACON_MAXLEN;
3337 memcpy(cmd->beacon_data, &payload->u.beacon, payload_len);
3339 rc = mwl8k_post_cmd(hw, &cmd->header);
3346 * CMD_SET_RTS_THRESHOLD.
3348 struct mwl8k_cmd_set_rts_threshold {
3349 struct mwl8k_cmd_pkt header;
3355 mwl8k_cmd_set_rts_threshold(struct ieee80211_hw *hw, int rts_thresh)
3357 struct mwl8k_cmd_set_rts_threshold *cmd;
3360 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3364 cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD);
3365 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3366 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3367 cmd->threshold = cpu_to_le16(rts_thresh);
3369 rc = mwl8k_post_cmd(hw, &cmd->header);
3378 struct mwl8k_cmd_set_slot {
3379 struct mwl8k_cmd_pkt header;
3384 static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time)
3386 struct mwl8k_cmd_set_slot *cmd;
3389 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3393 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT);
3394 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3395 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3396 cmd->short_slot = short_slot_time;
3398 rc = mwl8k_post_cmd(hw, &cmd->header);
3405 * CMD_SET_EDCA_PARAMS.
3407 struct mwl8k_cmd_set_edca_params {
3408 struct mwl8k_cmd_pkt header;
3410 /* See MWL8K_SET_EDCA_XXX below */
3413 /* TX opportunity in units of 32 us */
3418 /* Log exponent of max contention period: 0...15 */
3421 /* Log exponent of min contention period: 0...15 */
3424 /* Adaptive interframe spacing in units of 32us */
3427 /* TX queue to configure */
3431 /* Log exponent of max contention period: 0...15 */
3434 /* Log exponent of min contention period: 0...15 */
3437 /* Adaptive interframe spacing in units of 32us */
3440 /* TX queue to configure */
3446 #define MWL8K_SET_EDCA_CW 0x01
3447 #define MWL8K_SET_EDCA_TXOP 0x02
3448 #define MWL8K_SET_EDCA_AIFS 0x04
3450 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
3451 MWL8K_SET_EDCA_TXOP | \
3452 MWL8K_SET_EDCA_AIFS)
3455 mwl8k_cmd_set_edca_params(struct ieee80211_hw *hw, __u8 qnum,
3456 __u16 cw_min, __u16 cw_max,
3457 __u8 aifs, __u16 txop)
3459 struct mwl8k_priv *priv = hw->priv;
3460 struct mwl8k_cmd_set_edca_params *cmd;
3463 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3467 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS);
3468 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3469 cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL);
3470 cmd->txop = cpu_to_le16(txop);
3472 cmd->ap.log_cw_max = cpu_to_le32(ilog2(cw_max + 1));
3473 cmd->ap.log_cw_min = cpu_to_le32(ilog2(cw_min + 1));
3474 cmd->ap.aifs = aifs;
3477 cmd->sta.log_cw_max = (u8)ilog2(cw_max + 1);
3478 cmd->sta.log_cw_min = (u8)ilog2(cw_min + 1);
3479 cmd->sta.aifs = aifs;
3480 cmd->sta.txq = qnum;
3483 rc = mwl8k_post_cmd(hw, &cmd->header);
3492 struct mwl8k_cmd_set_wmm_mode {
3493 struct mwl8k_cmd_pkt header;
3497 static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw *hw, bool enable)
3499 struct mwl8k_priv *priv = hw->priv;
3500 struct mwl8k_cmd_set_wmm_mode *cmd;
3503 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3507 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE);
3508 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3509 cmd->action = cpu_to_le16(!!enable);
3511 rc = mwl8k_post_cmd(hw, &cmd->header);
3515 priv->wmm_enabled = enable;
3523 struct mwl8k_cmd_mimo_config {
3524 struct mwl8k_cmd_pkt header;
3526 __u8 rx_antenna_map;
3527 __u8 tx_antenna_map;
3530 static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx)
3532 struct mwl8k_cmd_mimo_config *cmd;
3535 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3539 cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG);
3540 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3541 cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET);
3542 cmd->rx_antenna_map = rx;
3543 cmd->tx_antenna_map = tx;
3545 rc = mwl8k_post_cmd(hw, &cmd->header);
3552 * CMD_USE_FIXED_RATE (STA version).
3554 struct mwl8k_cmd_use_fixed_rate_sta {
3555 struct mwl8k_cmd_pkt header;
3557 __le32 allow_rate_drop;
3561 __le32 enable_retry;
3570 #define MWL8K_USE_AUTO_RATE 0x0002
3571 #define MWL8K_UCAST_RATE 0
3573 static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw *hw)
3575 struct mwl8k_cmd_use_fixed_rate_sta *cmd;
3578 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3582 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
3583 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3584 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
3585 cmd->rate_type = cpu_to_le32(MWL8K_UCAST_RATE);
3587 rc = mwl8k_post_cmd(hw, &cmd->header);
3594 * CMD_USE_FIXED_RATE (AP version).
3596 struct mwl8k_cmd_use_fixed_rate_ap {
3597 struct mwl8k_cmd_pkt header;
3599 __le32 allow_rate_drop;
3601 struct mwl8k_rate_entry_ap {
3603 __le32 enable_retry;
3608 u8 multicast_rate_type;
3613 mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw *hw, int mcast, int mgmt)
3615 struct mwl8k_cmd_use_fixed_rate_ap *cmd;
3618 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3622 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
3623 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3624 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
3625 cmd->multicast_rate = mcast;
3626 cmd->management_rate = mgmt;
3628 rc = mwl8k_post_cmd(hw, &cmd->header);
3635 * CMD_ENABLE_SNIFFER.
3637 struct mwl8k_cmd_enable_sniffer {
3638 struct mwl8k_cmd_pkt header;
3642 static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw *hw, bool enable)
3644 struct mwl8k_cmd_enable_sniffer *cmd;
3647 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3651 cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER);
3652 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3653 cmd->action = cpu_to_le32(!!enable);
3655 rc = mwl8k_post_cmd(hw, &cmd->header);
3661 struct mwl8k_cmd_update_mac_addr {
3662 struct mwl8k_cmd_pkt header;
3666 __u8 mac_addr[ETH_ALEN];
3668 __u8 mac_addr[ETH_ALEN];
3672 #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0
3673 #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1
3674 #define MWL8K_MAC_TYPE_PRIMARY_AP 2
3675 #define MWL8K_MAC_TYPE_SECONDARY_AP 3
3677 static int mwl8k_cmd_update_mac_addr(struct ieee80211_hw *hw,
3678 struct ieee80211_vif *vif, u8 *mac, bool set)
3680 struct mwl8k_priv *priv = hw->priv;
3681 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3682 struct mwl8k_cmd_update_mac_addr *cmd;
3686 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3687 if (vif != NULL && vif->type == NL80211_IFTYPE_STATION) {
3688 if (mwl8k_vif->macid + 1 == ffs(priv->sta_macids_supported))
3690 mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT;
3692 mac_type = MWL8K_MAC_TYPE_PRIMARY_CLIENT;
3694 mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT;
3695 } else if (vif != NULL && vif->type == NL80211_IFTYPE_AP) {
3696 if (mwl8k_vif->macid + 1 == ffs(priv->ap_macids_supported))
3697 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
3699 mac_type = MWL8K_MAC_TYPE_SECONDARY_AP;
3702 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3707 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR);
3709 cmd->header.code = cpu_to_le16(MWL8K_CMD_DEL_MAC_ADDR);
3711 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3713 cmd->mbss.mac_type = cpu_to_le16(mac_type);
3714 memcpy(cmd->mbss.mac_addr, mac, ETH_ALEN);
3716 memcpy(cmd->mac_addr, mac, ETH_ALEN);
3719 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3726 * MWL8K_CMD_SET_MAC_ADDR.
3728 static inline int mwl8k_cmd_set_mac_addr(struct ieee80211_hw *hw,
3729 struct ieee80211_vif *vif, u8 *mac)
3731 return mwl8k_cmd_update_mac_addr(hw, vif, mac, true);
3735 * MWL8K_CMD_DEL_MAC_ADDR.
3737 static inline int mwl8k_cmd_del_mac_addr(struct ieee80211_hw *hw,
3738 struct ieee80211_vif *vif, u8 *mac)
3740 return mwl8k_cmd_update_mac_addr(hw, vif, mac, false);
3744 * CMD_SET_RATEADAPT_MODE.
3746 struct mwl8k_cmd_set_rate_adapt_mode {
3747 struct mwl8k_cmd_pkt header;
3752 static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw *hw, __u16 mode)
3754 struct mwl8k_cmd_set_rate_adapt_mode *cmd;
3757 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3761 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE);
3762 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3763 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
3764 cmd->mode = cpu_to_le16(mode);
3766 rc = mwl8k_post_cmd(hw, &cmd->header);
3773 * CMD_GET_WATCHDOG_BITMAP.
3775 struct mwl8k_cmd_get_watchdog_bitmap {
3776 struct mwl8k_cmd_pkt header;
3780 static int mwl8k_cmd_get_watchdog_bitmap(struct ieee80211_hw *hw, u8 *bitmap)
3782 struct mwl8k_cmd_get_watchdog_bitmap *cmd;
3785 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3789 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_WATCHDOG_BITMAP);
3790 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3792 rc = mwl8k_post_cmd(hw, &cmd->header);
3794 *bitmap = cmd->bitmap;
3801 #define MWL8K_WMM_QUEUE_NUMBER 3
3803 static void mwl8k_destroy_ba(struct ieee80211_hw *hw,
3806 static void mwl8k_watchdog_ba_events(struct work_struct *work)
3809 u8 bitmap = 0, stream_index;
3810 struct mwl8k_ampdu_stream *streams;
3811 struct mwl8k_priv *priv =
3812 container_of(work, struct mwl8k_priv, watchdog_ba_handle);
3813 struct ieee80211_hw *hw = priv->hw;
3819 rc = mwl8k_cmd_get_watchdog_bitmap(priv->hw, &bitmap);
3823 spin_lock(&priv->stream_lock);
3825 /* the bitmap is the hw queue number. Map it to the ampdu queue. */
3826 for (i = 0; i < TOTAL_HW_TX_QUEUES; i++) {
3827 if (bitmap & (1 << i)) {
3828 stream_index = (i + MWL8K_WMM_QUEUE_NUMBER) %
3830 streams = &priv->ampdu[stream_index];
3831 if (streams->state == AMPDU_STREAM_ACTIVE) {
3832 ieee80211_stop_tx_ba_session(streams->sta,
3834 spin_unlock(&priv->stream_lock);
3835 mwl8k_destroy_ba(hw, stream_index);
3836 spin_lock(&priv->stream_lock);
3841 spin_unlock(&priv->stream_lock);
3843 atomic_dec(&priv->watchdog_event_pending);
3844 status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
3845 iowrite32((status | MWL8K_A2H_INT_BA_WATCHDOG),
3846 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
3847 mwl8k_fw_unlock(hw);
3855 struct mwl8k_cmd_bss_start {
3856 struct mwl8k_cmd_pkt header;
3860 static int mwl8k_cmd_bss_start(struct ieee80211_hw *hw,
3861 struct ieee80211_vif *vif, int enable)
3863 struct mwl8k_cmd_bss_start *cmd;
3864 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3865 struct mwl8k_priv *priv = hw->priv;
3868 if (enable && (priv->running_bsses & (1 << mwl8k_vif->macid)))
3871 if (!enable && !(priv->running_bsses & (1 << mwl8k_vif->macid)))
3874 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3878 cmd->header.code = cpu_to_le16(MWL8K_CMD_BSS_START);
3879 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3880 cmd->enable = cpu_to_le32(enable);
3882 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3887 priv->running_bsses |= (1 << mwl8k_vif->macid);
3889 priv->running_bsses &= ~(1 << mwl8k_vif->macid);
3894 static void mwl8k_enable_bsses(struct ieee80211_hw *hw, bool enable, u32 bitmap)
3896 struct mwl8k_priv *priv = hw->priv;
3897 struct mwl8k_vif *mwl8k_vif, *tmp_vif;
3898 struct ieee80211_vif *vif;
3900 list_for_each_entry_safe(mwl8k_vif, tmp_vif, &priv->vif_list, list) {
3901 vif = mwl8k_vif->vif;
3903 if (!(bitmap & (1 << mwl8k_vif->macid)))
3906 if (vif->type == NL80211_IFTYPE_AP)
3907 mwl8k_cmd_bss_start(hw, vif, enable);
3915 * UPSTREAM is tx direction
3917 #define BASTREAM_FLAG_DIRECTION_UPSTREAM 0x00
3918 #define BASTREAM_FLAG_IMMEDIATE_TYPE 0x01
3920 enum ba_stream_action_type {
3929 struct mwl8k_create_ba_stream {
3934 u8 peer_mac_addr[6];
3940 u8 reset_seq_no_flag;
3942 u8 sta_src_mac_addr[6];
3945 struct mwl8k_destroy_ba_stream {
3950 struct mwl8k_cmd_bastream {
3951 struct mwl8k_cmd_pkt header;
3954 struct mwl8k_create_ba_stream create_params;
3955 struct mwl8k_destroy_ba_stream destroy_params;
3960 mwl8k_check_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream,
3961 struct ieee80211_vif *vif)
3963 struct mwl8k_cmd_bastream *cmd;
3966 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3970 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
3971 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3973 cmd->action = cpu_to_le32(MWL8K_BA_CHECK);
3975 cmd->create_params.queue_id = stream->idx;
3976 memcpy(&cmd->create_params.peer_mac_addr[0], stream->sta->addr,
3978 cmd->create_params.tid = stream->tid;
3980 cmd->create_params.flags =
3981 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE) |
3982 cpu_to_le32(BASTREAM_FLAG_DIRECTION_UPSTREAM);
3984 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3992 mwl8k_create_ba(struct ieee80211_hw *hw, struct mwl8k_ampdu_stream *stream,
3993 u8 buf_size, struct ieee80211_vif *vif)
3995 struct mwl8k_cmd_bastream *cmd;
3998 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4003 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
4004 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4006 cmd->action = cpu_to_le32(MWL8K_BA_CREATE);
4008 cmd->create_params.bar_thrs = cpu_to_le32((u32)buf_size);
4009 cmd->create_params.window_size = cpu_to_le32((u32)buf_size);
4010 cmd->create_params.queue_id = stream->idx;
4012 memcpy(cmd->create_params.peer_mac_addr, stream->sta->addr, ETH_ALEN);
4013 cmd->create_params.tid = stream->tid;
4014 cmd->create_params.curr_seq_no = cpu_to_le16(0);
4015 cmd->create_params.reset_seq_no_flag = 1;
4017 cmd->create_params.param_info =
4018 (stream->sta->ht_cap.ampdu_factor &
4019 IEEE80211_HT_AMPDU_PARM_FACTOR) |
4020 ((stream->sta->ht_cap.ampdu_density << 2) &
4021 IEEE80211_HT_AMPDU_PARM_DENSITY);
4023 cmd->create_params.flags =
4024 cpu_to_le32(BASTREAM_FLAG_IMMEDIATE_TYPE |
4025 BASTREAM_FLAG_DIRECTION_UPSTREAM);
4027 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4029 wiphy_debug(hw->wiphy, "Created a BA stream for %pM : tid %d\n",
4030 stream->sta->addr, stream->tid);
4036 static void mwl8k_destroy_ba(struct ieee80211_hw *hw,
4039 struct mwl8k_cmd_bastream *cmd;
4041 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4045 cmd->header.code = cpu_to_le16(MWL8K_CMD_BASTREAM);
4046 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4047 cmd->action = cpu_to_le32(MWL8K_BA_DESTROY);
4049 cmd->destroy_params.ba_context = cpu_to_le32(idx);
4050 mwl8k_post_cmd(hw, &cmd->header);
4052 wiphy_debug(hw->wiphy, "Deleted BA stream index %d\n", idx);
4060 struct mwl8k_cmd_set_new_stn {
4061 struct mwl8k_cmd_pkt header;
4067 __le32 legacy_rates;
4070 __le16 ht_capabilities_info;
4071 __u8 mac_ht_param_info;
4073 __u8 control_channel;
4082 #define MWL8K_STA_ACTION_ADD 0
4083 #define MWL8K_STA_ACTION_REMOVE 2
4085 static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw *hw,
4086 struct ieee80211_vif *vif,
4087 struct ieee80211_sta *sta)
4089 struct mwl8k_cmd_set_new_stn *cmd;
4093 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4097 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4098 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4099 cmd->aid = cpu_to_le16(sta->aid);
4100 memcpy(cmd->mac_addr, sta->addr, ETH_ALEN);
4101 cmd->stn_id = cpu_to_le16(sta->aid);
4102 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_ADD);
4103 if (hw->conf.chandef.chan->band == NL80211_BAND_2GHZ)
4104 rates = sta->supp_rates[NL80211_BAND_2GHZ];
4106 rates = sta->supp_rates[NL80211_BAND_5GHZ] << 5;
4107 cmd->legacy_rates = cpu_to_le32(rates);
4108 if (sta->ht_cap.ht_supported) {
4109 cmd->ht_rates[0] = sta->ht_cap.mcs.rx_mask[0];
4110 cmd->ht_rates[1] = sta->ht_cap.mcs.rx_mask[1];
4111 cmd->ht_rates[2] = sta->ht_cap.mcs.rx_mask[2];
4112 cmd->ht_rates[3] = sta->ht_cap.mcs.rx_mask[3];
4113 cmd->ht_capabilities_info = cpu_to_le16(sta->ht_cap.cap);
4114 cmd->mac_ht_param_info = (sta->ht_cap.ampdu_factor & 3) |
4115 ((sta->ht_cap.ampdu_density & 7) << 2);
4116 cmd->is_qos_sta = 1;
4119 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4125 static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw *hw,
4126 struct ieee80211_vif *vif)
4128 struct mwl8k_cmd_set_new_stn *cmd;
4131 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4135 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4136 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4137 memcpy(cmd->mac_addr, vif->addr, ETH_ALEN);
4139 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4145 static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw *hw,
4146 struct ieee80211_vif *vif, u8 *addr)
4148 struct mwl8k_cmd_set_new_stn *cmd;
4149 struct mwl8k_priv *priv = hw->priv;
4153 spin_lock(&priv->stream_lock);
4154 /* Destroy any active ampdu streams for this sta */
4155 for (i = 0; i < MWL8K_NUM_AMPDU_STREAMS; i++) {
4156 struct mwl8k_ampdu_stream *s;
4157 s = &priv->ampdu[i];
4158 if (s->state != AMPDU_NO_STREAM) {
4159 if (memcmp(s->sta->addr, addr, ETH_ALEN) == 0) {
4160 if (s->state == AMPDU_STREAM_ACTIVE) {
4162 spin_unlock(&priv->stream_lock);
4163 mwl8k_destroy_ba(hw, idx);
4164 spin_lock(&priv->stream_lock);
4165 } else if (s->state == AMPDU_STREAM_NEW) {
4166 mwl8k_remove_stream(hw, s);
4172 spin_unlock(&priv->stream_lock);
4174 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4178 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
4179 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4180 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4181 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_REMOVE);
4183 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4190 * CMD_UPDATE_ENCRYPTION.
4193 #define MAX_ENCR_KEY_LENGTH 16
4194 #define MIC_KEY_LENGTH 8
4196 struct mwl8k_cmd_update_encryption {
4197 struct mwl8k_cmd_pkt header;
4206 struct mwl8k_cmd_set_key {
4207 struct mwl8k_cmd_pkt header;
4216 __u8 key_material[MAX_ENCR_KEY_LENGTH];
4217 __u8 tkip_tx_mic_key[MIC_KEY_LENGTH];
4218 __u8 tkip_rx_mic_key[MIC_KEY_LENGTH];
4219 __le16 tkip_rsc_low;
4220 __le32 tkip_rsc_high;
4221 __le16 tkip_tsc_low;
4222 __le32 tkip_tsc_high;
4229 MWL8K_ENCR_REMOVE_KEY,
4230 MWL8K_ENCR_SET_GROUP_KEY,
4233 #define MWL8K_UPDATE_ENCRYPTION_TYPE_WEP 0
4234 #define MWL8K_UPDATE_ENCRYPTION_TYPE_DISABLE 1
4235 #define MWL8K_UPDATE_ENCRYPTION_TYPE_TKIP 4
4236 #define MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED 7
4237 #define MWL8K_UPDATE_ENCRYPTION_TYPE_AES 8
4245 #define MWL8K_KEY_FLAG_TXGROUPKEY 0x00000004
4246 #define MWL8K_KEY_FLAG_PAIRWISE 0x00000008
4247 #define MWL8K_KEY_FLAG_TSC_VALID 0x00000040
4248 #define MWL8K_KEY_FLAG_WEP_TXKEY 0x01000000
4249 #define MWL8K_KEY_FLAG_MICKEY_VALID 0x02000000
4251 static int mwl8k_cmd_update_encryption_enable(struct ieee80211_hw *hw,
4252 struct ieee80211_vif *vif,
4256 struct mwl8k_cmd_update_encryption *cmd;
4259 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4263 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
4264 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4265 cmd->action = cpu_to_le32(MWL8K_ENCR_ENABLE);
4266 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4267 cmd->encr_type = encr_type;
4269 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4275 static int mwl8k_encryption_set_cmd_info(struct mwl8k_cmd_set_key *cmd,
4277 struct ieee80211_key_conf *key)
4279 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_ENCRYPTION);
4280 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4281 cmd->length = cpu_to_le16(sizeof(*cmd) -
4282 offsetof(struct mwl8k_cmd_set_key, length));
4283 cmd->key_id = cpu_to_le32(key->keyidx);
4284 cmd->key_len = cpu_to_le16(key->keylen);
4285 memcpy(cmd->mac_addr, addr, ETH_ALEN);
4287 switch (key->cipher) {
4288 case WLAN_CIPHER_SUITE_WEP40:
4289 case WLAN_CIPHER_SUITE_WEP104:
4290 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_WEP);
4291 if (key->keyidx == 0)
4292 cmd->key_info = cpu_to_le32(MWL8K_KEY_FLAG_WEP_TXKEY);
4295 case WLAN_CIPHER_SUITE_TKIP:
4296 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_TKIP);
4297 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4298 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
4299 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
4300 cmd->key_info |= cpu_to_le32(MWL8K_KEY_FLAG_MICKEY_VALID
4301 | MWL8K_KEY_FLAG_TSC_VALID);
4303 case WLAN_CIPHER_SUITE_CCMP:
4304 cmd->key_type_id = cpu_to_le16(MWL8K_ALG_CCMP);
4305 cmd->key_info = (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4306 ? cpu_to_le32(MWL8K_KEY_FLAG_PAIRWISE)
4307 : cpu_to_le32(MWL8K_KEY_FLAG_TXGROUPKEY);
4316 static int mwl8k_cmd_encryption_set_key(struct ieee80211_hw *hw,
4317 struct ieee80211_vif *vif,
4319 struct ieee80211_key_conf *key)
4321 struct mwl8k_cmd_set_key *cmd;
4326 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4328 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4332 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
4338 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
4339 action = MWL8K_ENCR_SET_KEY;
4341 action = MWL8K_ENCR_SET_GROUP_KEY;
4343 switch (key->cipher) {
4344 case WLAN_CIPHER_SUITE_WEP40:
4345 case WLAN_CIPHER_SUITE_WEP104:
4346 if (!mwl8k_vif->wep_key_conf[idx].enabled) {
4347 memcpy(mwl8k_vif->wep_key_conf[idx].key, key,
4348 sizeof(*key) + key->keylen);
4349 mwl8k_vif->wep_key_conf[idx].enabled = 1;
4352 keymlen = key->keylen;
4353 action = MWL8K_ENCR_SET_KEY;
4355 case WLAN_CIPHER_SUITE_TKIP:
4356 keymlen = MAX_ENCR_KEY_LENGTH + 2 * MIC_KEY_LENGTH;
4358 case WLAN_CIPHER_SUITE_CCMP:
4359 keymlen = key->keylen;
4366 memcpy(cmd->key_material, key->key, keymlen);
4367 cmd->action = cpu_to_le32(action);
4369 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4376 static int mwl8k_cmd_encryption_remove_key(struct ieee80211_hw *hw,
4377 struct ieee80211_vif *vif,
4379 struct ieee80211_key_conf *key)
4381 struct mwl8k_cmd_set_key *cmd;
4383 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4385 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4389 rc = mwl8k_encryption_set_cmd_info(cmd, addr, key);
4393 if (key->cipher == WLAN_CIPHER_SUITE_WEP40 ||
4394 key->cipher == WLAN_CIPHER_SUITE_WEP104)
4395 mwl8k_vif->wep_key_conf[key->keyidx].enabled = 0;
4397 cmd->action = cpu_to_le32(MWL8K_ENCR_REMOVE_KEY);
4399 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
4406 static int mwl8k_set_key(struct ieee80211_hw *hw,
4407 enum set_key_cmd cmd_param,
4408 struct ieee80211_vif *vif,
4409 struct ieee80211_sta *sta,
4410 struct ieee80211_key_conf *key)
4415 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4416 struct mwl8k_priv *priv = hw->priv;
4418 if (vif->type == NL80211_IFTYPE_STATION && !priv->ap_fw)
4426 if (cmd_param == SET_KEY) {
4427 rc = mwl8k_cmd_encryption_set_key(hw, vif, addr, key);
4431 if ((key->cipher == WLAN_CIPHER_SUITE_WEP40)
4432 || (key->cipher == WLAN_CIPHER_SUITE_WEP104))
4433 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_WEP;
4435 encr_type = MWL8K_UPDATE_ENCRYPTION_TYPE_MIXED;
4437 rc = mwl8k_cmd_update_encryption_enable(hw, vif, addr,
4442 mwl8k_vif->is_hw_crypto_enabled = true;
4445 rc = mwl8k_cmd_encryption_remove_key(hw, vif, addr, key);
4457 struct ewc_ht_info {
4463 struct peer_capability_info {
4464 /* Peer type - AP vs. STA. */
4467 /* Basic 802.11 capabilities from assoc resp. */
4470 /* Set if peer supports 802.11n high throughput (HT). */
4473 /* Valid if HT is supported. */
4475 __u8 extended_ht_caps;
4476 struct ewc_ht_info ewc_info;
4478 /* Legacy rate table. Intersection of our rates and peer rates. */
4479 __u8 legacy_rates[12];
4481 /* HT rate table. Intersection of our rates and peer rates. */
4485 /* If set, interoperability mode, no proprietary extensions. */
4489 __le16 amsdu_enabled;
4492 struct mwl8k_cmd_update_stadb {
4493 struct mwl8k_cmd_pkt header;
4495 /* See STADB_ACTION_TYPE */
4498 /* Peer MAC address */
4499 __u8 peer_addr[ETH_ALEN];
4503 /* Peer info - valid during add/update. */
4504 struct peer_capability_info peer_info;
4507 #define MWL8K_STA_DB_MODIFY_ENTRY 1
4508 #define MWL8K_STA_DB_DEL_ENTRY 2
4510 /* Peer Entry flags - used to define the type of the peer node */
4511 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
4513 static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw,
4514 struct ieee80211_vif *vif,
4515 struct ieee80211_sta *sta)
4517 struct mwl8k_cmd_update_stadb *cmd;
4518 struct peer_capability_info *p;
4522 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4526 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
4527 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4528 cmd->action = cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY);
4529 memcpy(cmd->peer_addr, sta->addr, ETH_ALEN);
4531 p = &cmd->peer_info;
4532 p->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT;
4533 p->basic_caps = cpu_to_le16(vif->bss_conf.assoc_capability);
4534 p->ht_support = sta->ht_cap.ht_supported;
4535 p->ht_caps = cpu_to_le16(sta->ht_cap.cap);
4536 p->extended_ht_caps = (sta->ht_cap.ampdu_factor & 3) |
4537 ((sta->ht_cap.ampdu_density & 7) << 2);
4538 if (hw->conf.chandef.chan->band == NL80211_BAND_2GHZ)
4539 rates = sta->supp_rates[NL80211_BAND_2GHZ];
4541 rates = sta->supp_rates[NL80211_BAND_5GHZ] << 5;
4542 legacy_rate_mask_to_array(p->legacy_rates, rates);
4543 memcpy(p->ht_rates, sta->ht_cap.mcs.rx_mask, 16);
4545 p->amsdu_enabled = 0;
4547 rc = mwl8k_post_cmd(hw, &cmd->header);
4555 static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw *hw,
4556 struct ieee80211_vif *vif, u8 *addr)
4558 struct mwl8k_cmd_update_stadb *cmd;
4561 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
4565 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
4566 cmd->header.length = cpu_to_le16(sizeof(*cmd));
4567 cmd->action = cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY);
4568 memcpy(cmd->peer_addr, addr, ETH_ALEN);
4570 rc = mwl8k_post_cmd(hw, &cmd->header);
4578 * Interrupt handling.
4580 static irqreturn_t mwl8k_interrupt(int irq, void *dev_id)
4582 struct ieee80211_hw *hw = dev_id;
4583 struct mwl8k_priv *priv = hw->priv;
4586 status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4590 if (status & MWL8K_A2H_INT_TX_DONE) {
4591 status &= ~MWL8K_A2H_INT_TX_DONE;
4592 tasklet_schedule(&priv->poll_tx_task);
4595 if (status & MWL8K_A2H_INT_RX_READY) {
4596 status &= ~MWL8K_A2H_INT_RX_READY;
4597 tasklet_schedule(&priv->poll_rx_task);
4600 if (status & MWL8K_A2H_INT_BA_WATCHDOG) {
4601 iowrite32(~MWL8K_A2H_INT_BA_WATCHDOG,
4602 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
4604 atomic_inc(&priv->watchdog_event_pending);
4605 status &= ~MWL8K_A2H_INT_BA_WATCHDOG;
4606 ieee80211_queue_work(hw, &priv->watchdog_ba_handle);
4610 iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4612 if (status & MWL8K_A2H_INT_OPC_DONE) {
4613 if (priv->hostcmd_wait != NULL)
4614 complete(priv->hostcmd_wait);
4617 if (status & MWL8K_A2H_INT_QUEUE_EMPTY) {
4618 if (!mutex_is_locked(&priv->fw_mutex) &&
4619 priv->radio_on && priv->pending_tx_pkts)
4620 mwl8k_tx_start(priv);
4626 static void mwl8k_tx_poll(unsigned long data)
4628 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
4629 struct mwl8k_priv *priv = hw->priv;
4635 spin_lock_bh(&priv->tx_lock);
4637 for (i = 0; i < mwl8k_tx_queues(priv); i++)
4638 limit -= mwl8k_txq_reclaim(hw, i, limit, 0);
4640 if (!priv->pending_tx_pkts && priv->tx_wait != NULL) {
4641 complete(priv->tx_wait);
4642 priv->tx_wait = NULL;
4645 spin_unlock_bh(&priv->tx_lock);
4648 writel(~MWL8K_A2H_INT_TX_DONE,
4649 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4651 tasklet_schedule(&priv->poll_tx_task);
4655 static void mwl8k_rx_poll(unsigned long data)
4657 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
4658 struct mwl8k_priv *priv = hw->priv;
4662 limit -= rxq_process(hw, 0, limit);
4663 limit -= rxq_refill(hw, 0, limit);
4666 writel(~MWL8K_A2H_INT_RX_READY,
4667 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4669 tasklet_schedule(&priv->poll_rx_task);
4675 * Core driver operations.
4677 static void mwl8k_tx(struct ieee80211_hw *hw,
4678 struct ieee80211_tx_control *control,
4679 struct sk_buff *skb)
4681 struct mwl8k_priv *priv = hw->priv;
4682 int index = skb_get_queue_mapping(skb);
4684 if (!priv->radio_on) {
4685 wiphy_debug(hw->wiphy,
4686 "dropped TX frame since radio disabled\n");
4691 mwl8k_txq_xmit(hw, index, control->sta, skb);
4694 static int mwl8k_start(struct ieee80211_hw *hw)
4696 struct mwl8k_priv *priv = hw->priv;
4699 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
4700 IRQF_SHARED, MWL8K_NAME, hw);
4703 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
4706 priv->irq = priv->pdev->irq;
4708 /* Enable TX reclaim and RX tasklets. */
4709 tasklet_enable(&priv->poll_tx_task);
4710 tasklet_enable(&priv->poll_rx_task);
4712 /* Enable interrupts */
4713 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4714 iowrite32(MWL8K_A2H_EVENTS,
4715 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
4717 rc = mwl8k_fw_lock(hw);
4719 rc = mwl8k_cmd_radio_enable(hw);
4723 rc = mwl8k_cmd_enable_sniffer(hw, 0);
4726 rc = mwl8k_cmd_set_pre_scan(hw);
4729 rc = mwl8k_cmd_set_post_scan(hw,
4730 "\x00\x00\x00\x00\x00\x00");
4734 rc = mwl8k_cmd_set_rateadapt_mode(hw, 0);
4737 rc = mwl8k_cmd_set_wmm_mode(hw, 0);
4739 mwl8k_fw_unlock(hw);
4743 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4744 free_irq(priv->pdev->irq, hw);
4746 tasklet_disable(&priv->poll_tx_task);
4747 tasklet_disable(&priv->poll_rx_task);
4749 ieee80211_wake_queues(hw);
4755 static void mwl8k_stop(struct ieee80211_hw *hw)
4757 struct mwl8k_priv *priv = hw->priv;
4760 if (!priv->hw_restart_in_progress)
4761 mwl8k_cmd_radio_disable(hw);
4763 ieee80211_stop_queues(hw);
4765 /* Disable interrupts */
4766 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4767 if (priv->irq != -1) {
4768 free_irq(priv->pdev->irq, hw);
4772 /* Stop finalize join worker */
4773 cancel_work_sync(&priv->finalize_join_worker);
4774 cancel_work_sync(&priv->watchdog_ba_handle);
4775 if (priv->beacon_skb != NULL)
4776 dev_kfree_skb(priv->beacon_skb);
4778 /* Stop TX reclaim and RX tasklets. */
4779 tasklet_disable(&priv->poll_tx_task);
4780 tasklet_disable(&priv->poll_rx_task);
4782 /* Return all skbs to mac80211 */
4783 for (i = 0; i < mwl8k_tx_queues(priv); i++)
4784 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
4787 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image);
4789 static int mwl8k_add_interface(struct ieee80211_hw *hw,
4790 struct ieee80211_vif *vif)
4792 struct mwl8k_priv *priv = hw->priv;
4793 struct mwl8k_vif *mwl8k_vif;
4794 u32 macids_supported;
4796 struct mwl8k_device_info *di;
4799 * Reject interface creation if sniffer mode is active, as
4800 * STA operation is mutually exclusive with hardware sniffer
4801 * mode. (Sniffer mode is only used on STA firmware.)
4803 if (priv->sniffer_enabled) {
4804 wiphy_info(hw->wiphy,
4805 "unable to create STA interface because sniffer mode is enabled\n");
4809 di = priv->device_info;
4810 switch (vif->type) {
4811 case NL80211_IFTYPE_AP:
4812 if (!priv->ap_fw && di->fw_image_ap) {
4813 /* we must load the ap fw to meet this request */
4814 if (!list_empty(&priv->vif_list))
4816 rc = mwl8k_reload_firmware(hw, di->fw_image_ap);
4820 macids_supported = priv->ap_macids_supported;
4822 case NL80211_IFTYPE_STATION:
4823 if (priv->ap_fw && di->fw_image_sta) {
4824 if (!list_empty(&priv->vif_list)) {
4825 wiphy_warn(hw->wiphy, "AP interface is running.\n"
4826 "Adding STA interface for WDS");
4828 /* we must load the sta fw to
4829 * meet this request.
4831 rc = mwl8k_reload_firmware(hw,
4837 macids_supported = priv->sta_macids_supported;
4843 macid = ffs(macids_supported & ~priv->macids_used);
4847 /* Setup driver private area. */
4848 mwl8k_vif = MWL8K_VIF(vif);
4849 memset(mwl8k_vif, 0, sizeof(*mwl8k_vif));
4850 mwl8k_vif->vif = vif;
4851 mwl8k_vif->macid = macid;
4852 mwl8k_vif->seqno = 0;
4853 memcpy(mwl8k_vif->bssid, vif->addr, ETH_ALEN);
4854 mwl8k_vif->is_hw_crypto_enabled = false;
4856 /* Set the mac address. */
4857 mwl8k_cmd_set_mac_addr(hw, vif, vif->addr);
4859 if (vif->type == NL80211_IFTYPE_AP)
4860 mwl8k_cmd_set_new_stn_add_self(hw, vif);
4862 priv->macids_used |= 1 << mwl8k_vif->macid;
4863 list_add_tail(&mwl8k_vif->list, &priv->vif_list);
4868 static void mwl8k_remove_vif(struct mwl8k_priv *priv, struct mwl8k_vif *vif)
4870 /* Has ieee80211_restart_hw re-added the removed interfaces? */
4871 if (!priv->macids_used)
4874 priv->macids_used &= ~(1 << vif->macid);
4875 list_del(&vif->list);
4878 static void mwl8k_remove_interface(struct ieee80211_hw *hw,
4879 struct ieee80211_vif *vif)
4881 struct mwl8k_priv *priv = hw->priv;
4882 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
4884 if (vif->type == NL80211_IFTYPE_AP)
4885 mwl8k_cmd_set_new_stn_del(hw, vif, vif->addr);
4887 mwl8k_cmd_del_mac_addr(hw, vif, vif->addr);
4889 mwl8k_remove_vif(priv, mwl8k_vif);
4892 static void mwl8k_hw_restart_work(struct work_struct *work)
4894 struct mwl8k_priv *priv =
4895 container_of(work, struct mwl8k_priv, fw_reload);
4896 struct ieee80211_hw *hw = priv->hw;
4897 struct mwl8k_device_info *di;
4900 /* If some command is waiting for a response, clear it */
4901 if (priv->hostcmd_wait != NULL) {
4902 complete(priv->hostcmd_wait);
4903 priv->hostcmd_wait = NULL;
4906 priv->hw_restart_owner = current;
4907 di = priv->device_info;
4911 rc = mwl8k_reload_firmware(hw, di->fw_image_ap);
4913 rc = mwl8k_reload_firmware(hw, di->fw_image_sta);
4918 priv->hw_restart_owner = NULL;
4919 priv->hw_restart_in_progress = false;
4922 * This unlock will wake up the queues and
4923 * also opens the command path for other
4926 mwl8k_fw_unlock(hw);
4928 ieee80211_restart_hw(hw);
4930 wiphy_err(hw->wiphy, "Firmware restarted successfully\n");
4934 mwl8k_fw_unlock(hw);
4936 wiphy_err(hw->wiphy, "Firmware restart failed\n");
4939 static int mwl8k_config(struct ieee80211_hw *hw, u32 changed)
4941 struct ieee80211_conf *conf = &hw->conf;
4942 struct mwl8k_priv *priv = hw->priv;
4945 rc = mwl8k_fw_lock(hw);
4949 if (conf->flags & IEEE80211_CONF_IDLE)
4950 rc = mwl8k_cmd_radio_disable(hw);
4952 rc = mwl8k_cmd_radio_enable(hw);
4956 if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
4957 rc = mwl8k_cmd_set_rf_channel(hw, conf);
4962 if (conf->power_level > 18)
4963 conf->power_level = 18;
4967 if (conf->flags & IEEE80211_CONF_CHANGE_POWER) {
4968 rc = mwl8k_cmd_tx_power(hw, conf, conf->power_level);
4975 rc = mwl8k_cmd_rf_tx_power(hw, conf->power_level);
4978 rc = mwl8k_cmd_mimo_config(hw, 0x7, 0x7);
4982 mwl8k_fw_unlock(hw);
4988 mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
4989 struct ieee80211_bss_conf *info, u32 changed)
4991 struct mwl8k_priv *priv = hw->priv;
4992 u32 ap_legacy_rates = 0;
4993 u8 ap_mcs_rates[16];
4996 if (mwl8k_fw_lock(hw))
5000 * No need to capture a beacon if we're no longer associated.
5002 if ((changed & BSS_CHANGED_ASSOC) && !vif->bss_conf.assoc)
5003 priv->capture_beacon = false;
5006 * Get the AP's legacy and MCS rates.
5008 if (vif->bss_conf.assoc) {
5009 struct ieee80211_sta *ap;
5013 ap = ieee80211_find_sta(vif, vif->bss_conf.bssid);
5019 if (hw->conf.chandef.chan->band == NL80211_BAND_2GHZ) {
5020 ap_legacy_rates = ap->supp_rates[NL80211_BAND_2GHZ];
5023 ap->supp_rates[NL80211_BAND_5GHZ] << 5;
5025 memcpy(ap_mcs_rates, ap->ht_cap.mcs.rx_mask, 16);
5029 if (changed & BSS_CHANGED_ASSOC) {
5031 rc = mwl8k_cmd_set_rate(hw, vif,
5037 rc = mwl8k_cmd_use_fixed_rate_sta(hw);
5044 /* Use AP firmware specific rate command.
5046 idx = ffs(vif->bss_conf.basic_rates);
5050 if (hw->conf.chandef.chan->band ==
5052 rate = mwl8k_rates_24[idx].hw_value;
5054 rate = mwl8k_rates_50[idx].hw_value;
5056 mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate);
5061 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
5062 rc = mwl8k_set_radio_preamble(hw,
5063 vif->bss_conf.use_short_preamble);
5068 if ((changed & BSS_CHANGED_ERP_SLOT) && !priv->ap_fw) {
5069 rc = mwl8k_cmd_set_slot(hw, vif->bss_conf.use_short_slot);
5074 if (vif->bss_conf.assoc && !priv->ap_fw &&
5075 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_ERP_CTS_PROT |
5077 rc = mwl8k_cmd_set_aid(hw, vif, ap_legacy_rates);
5082 if (vif->bss_conf.assoc &&
5083 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INT))) {
5085 * Finalize the join. Tell rx handler to process
5086 * next beacon from our BSSID.
5088 memcpy(priv->capture_bssid, vif->bss_conf.bssid, ETH_ALEN);
5089 priv->capture_beacon = true;
5093 mwl8k_fw_unlock(hw);
5097 mwl8k_bss_info_changed_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5098 struct ieee80211_bss_conf *info, u32 changed)
5102 if (mwl8k_fw_lock(hw))
5105 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
5106 rc = mwl8k_set_radio_preamble(hw,
5107 vif->bss_conf.use_short_preamble);
5112 if (changed & BSS_CHANGED_BASIC_RATES) {
5117 * Use lowest supported basic rate for multicasts
5118 * and management frames (such as probe responses --
5119 * beacons will always go out at 1 Mb/s).
5121 idx = ffs(vif->bss_conf.basic_rates);
5125 if (hw->conf.chandef.chan->band == NL80211_BAND_2GHZ)
5126 rate = mwl8k_rates_24[idx].hw_value;
5128 rate = mwl8k_rates_50[idx].hw_value;
5130 mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate);
5133 if (changed & (BSS_CHANGED_BEACON_INT | BSS_CHANGED_BEACON)) {
5134 struct sk_buff *skb;
5136 skb = ieee80211_beacon_get(hw, vif);
5138 mwl8k_cmd_set_beacon(hw, vif, skb->data, skb->len);
5143 if (changed & BSS_CHANGED_BEACON_ENABLED)
5144 mwl8k_cmd_bss_start(hw, vif, info->enable_beacon);
5147 mwl8k_fw_unlock(hw);
5151 mwl8k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5152 struct ieee80211_bss_conf *info, u32 changed)
5154 if (vif->type == NL80211_IFTYPE_STATION)
5155 mwl8k_bss_info_changed_sta(hw, vif, info, changed);
5156 if (vif->type == NL80211_IFTYPE_AP)
5157 mwl8k_bss_info_changed_ap(hw, vif, info, changed);
5160 static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw,
5161 struct netdev_hw_addr_list *mc_list)
5163 struct mwl8k_cmd_pkt *cmd;
5166 * Synthesize and return a command packet that programs the
5167 * hardware multicast address filter. At this point we don't
5168 * know whether FIF_ALLMULTI is being requested, but if it is,
5169 * we'll end up throwing this packet away and creating a new
5170 * one in mwl8k_configure_filter().
5172 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_list);
5174 return (unsigned long)cmd;
5178 mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw,
5179 unsigned int changed_flags,
5180 unsigned int *total_flags)
5182 struct mwl8k_priv *priv = hw->priv;
5185 * Hardware sniffer mode is mutually exclusive with STA
5186 * operation, so refuse to enable sniffer mode if a STA
5187 * interface is active.
5189 if (!list_empty(&priv->vif_list)) {
5190 if (net_ratelimit())
5191 wiphy_info(hw->wiphy,
5192 "not enabling sniffer mode because STA interface is active\n");
5196 if (!priv->sniffer_enabled) {
5197 if (mwl8k_cmd_enable_sniffer(hw, 1))
5199 priv->sniffer_enabled = true;
5202 *total_flags &= FIF_ALLMULTI |
5203 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL |
5209 static struct mwl8k_vif *mwl8k_first_vif(struct mwl8k_priv *priv)
5211 if (!list_empty(&priv->vif_list))
5212 return list_entry(priv->vif_list.next, struct mwl8k_vif, list);
5217 static void mwl8k_configure_filter(struct ieee80211_hw *hw,
5218 unsigned int changed_flags,
5219 unsigned int *total_flags,
5222 struct mwl8k_priv *priv = hw->priv;
5223 struct mwl8k_cmd_pkt *cmd = (void *)(unsigned long)multicast;
5226 * AP firmware doesn't allow fine-grained control over
5227 * the receive filter.
5230 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
5236 * Enable hardware sniffer mode if FIF_CONTROL or
5237 * FIF_OTHER_BSS is requested.
5239 if (*total_flags & (FIF_CONTROL | FIF_OTHER_BSS) &&
5240 mwl8k_configure_filter_sniffer(hw, changed_flags, total_flags)) {
5245 /* Clear unsupported feature flags */
5246 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
5248 if (mwl8k_fw_lock(hw)) {
5253 if (priv->sniffer_enabled) {
5254 mwl8k_cmd_enable_sniffer(hw, 0);
5255 priv->sniffer_enabled = false;
5258 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
5259 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
5261 * Disable the BSS filter.
5263 mwl8k_cmd_set_pre_scan(hw);
5265 struct mwl8k_vif *mwl8k_vif;
5269 * Enable the BSS filter.
5271 * If there is an active STA interface, use that
5272 * interface's BSSID, otherwise use a dummy one
5273 * (where the OUI part needs to be nonzero for
5274 * the BSSID to be accepted by POST_SCAN).
5276 mwl8k_vif = mwl8k_first_vif(priv);
5277 if (mwl8k_vif != NULL)
5278 bssid = mwl8k_vif->vif->bss_conf.bssid;
5280 bssid = "\x01\x00\x00\x00\x00\x00";
5282 mwl8k_cmd_set_post_scan(hw, bssid);
5287 * If FIF_ALLMULTI is being requested, throw away the command
5288 * packet that ->prepare_multicast() built and replace it with
5289 * a command packet that enables reception of all multicast
5292 if (*total_flags & FIF_ALLMULTI) {
5294 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, NULL);
5298 mwl8k_post_cmd(hw, cmd);
5302 mwl8k_fw_unlock(hw);
5305 static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
5307 return mwl8k_cmd_set_rts_threshold(hw, value);
5310 static int mwl8k_sta_remove(struct ieee80211_hw *hw,
5311 struct ieee80211_vif *vif,
5312 struct ieee80211_sta *sta)
5314 struct mwl8k_priv *priv = hw->priv;
5317 return mwl8k_cmd_set_new_stn_del(hw, vif, sta->addr);
5319 return mwl8k_cmd_update_stadb_del(hw, vif, sta->addr);
5322 static int mwl8k_sta_add(struct ieee80211_hw *hw,
5323 struct ieee80211_vif *vif,
5324 struct ieee80211_sta *sta)
5326 struct mwl8k_priv *priv = hw->priv;
5329 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
5330 struct ieee80211_key_conf *key;
5333 ret = mwl8k_cmd_update_stadb_add(hw, vif, sta);
5335 MWL8K_STA(sta)->peer_id = ret;
5336 if (sta->ht_cap.ht_supported)
5337 MWL8K_STA(sta)->is_ampdu_allowed = true;
5342 ret = mwl8k_cmd_set_new_stn_add(hw, vif, sta);
5345 for (i = 0; i < NUM_WEP_KEYS; i++) {
5346 key = IEEE80211_KEY_CONF(mwl8k_vif->wep_key_conf[i].key);
5347 if (mwl8k_vif->wep_key_conf[i].enabled)
5348 mwl8k_set_key(hw, SET_KEY, vif, sta, key);
5353 static int mwl8k_conf_tx(struct ieee80211_hw *hw,
5354 struct ieee80211_vif *vif, u16 queue,
5355 const struct ieee80211_tx_queue_params *params)
5357 struct mwl8k_priv *priv = hw->priv;
5360 rc = mwl8k_fw_lock(hw);
5362 BUG_ON(queue > MWL8K_TX_WMM_QUEUES - 1);
5363 memcpy(&priv->wmm_params[queue], params, sizeof(*params));
5365 if (!priv->wmm_enabled)
5366 rc = mwl8k_cmd_set_wmm_mode(hw, 1);
5369 int q = MWL8K_TX_WMM_QUEUES - 1 - queue;
5370 rc = mwl8k_cmd_set_edca_params(hw, q,
5377 mwl8k_fw_unlock(hw);
5383 static int mwl8k_get_stats(struct ieee80211_hw *hw,
5384 struct ieee80211_low_level_stats *stats)
5386 return mwl8k_cmd_get_stat(hw, stats);
5389 static int mwl8k_get_survey(struct ieee80211_hw *hw, int idx,
5390 struct survey_info *survey)
5392 struct mwl8k_priv *priv = hw->priv;
5393 struct ieee80211_conf *conf = &hw->conf;
5394 struct ieee80211_supported_band *sband;
5397 sband = hw->wiphy->bands[NL80211_BAND_2GHZ];
5399 if (sband && idx >= sband->n_channels) {
5400 idx -= sband->n_channels;
5405 sband = hw->wiphy->bands[NL80211_BAND_5GHZ];
5407 if (!sband || idx >= sband->n_channels)
5410 memcpy(survey, &priv->survey[idx], sizeof(*survey));
5411 survey->channel = &sband->channels[idx];
5419 survey->channel = conf->chandef.chan;
5420 survey->filled = SURVEY_INFO_NOISE_DBM;
5421 survey->noise = priv->noise;
5426 #define MAX_AMPDU_ATTEMPTS 5
5429 mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
5430 struct ieee80211_ampdu_params *params)
5432 struct ieee80211_sta *sta = params->sta;
5433 enum ieee80211_ampdu_mlme_action action = params->action;
5434 u16 tid = params->tid;
5435 u16 *ssn = ¶ms->ssn;
5436 u8 buf_size = params->buf_size;
5438 struct mwl8k_priv *priv = hw->priv;
5439 struct mwl8k_ampdu_stream *stream;
5440 u8 *addr = sta->addr, idx;
5441 struct mwl8k_sta *sta_info = MWL8K_STA(sta);
5443 if (!ieee80211_hw_check(hw, AMPDU_AGGREGATION))
5446 spin_lock(&priv->stream_lock);
5447 stream = mwl8k_lookup_stream(hw, addr, tid);
5450 case IEEE80211_AMPDU_RX_START:
5451 case IEEE80211_AMPDU_RX_STOP:
5453 case IEEE80211_AMPDU_TX_START:
5454 /* By the time we get here the hw queues may contain outgoing
5455 * packets for this RA/TID that are not part of this BA
5456 * session. The hw will assign sequence numbers to these
5457 * packets as they go out. So if we query the hw for its next
5458 * sequence number and use that for the SSN here, it may end up
5459 * being wrong, which will lead to sequence number mismatch at
5460 * the recipient. To avoid this, we reset the sequence number
5461 * to O for the first MPDU in this BA stream.
5464 if (stream == NULL) {
5465 /* This means that somebody outside this driver called
5466 * ieee80211_start_tx_ba_session. This is unexpected
5467 * because we do our own rate control. Just warn and
5470 wiphy_warn(hw->wiphy, "Unexpected call to %s. "
5471 "Proceeding anyway.\n", __func__);
5472 stream = mwl8k_add_stream(hw, sta, tid);
5474 if (stream == NULL) {
5475 wiphy_debug(hw->wiphy, "no free AMPDU streams\n");
5479 stream->state = AMPDU_STREAM_IN_PROGRESS;
5481 /* Release the lock before we do the time consuming stuff */
5482 spin_unlock(&priv->stream_lock);
5483 for (i = 0; i < MAX_AMPDU_ATTEMPTS; i++) {
5485 /* Check if link is still valid */
5486 if (!sta_info->is_ampdu_allowed) {
5487 spin_lock(&priv->stream_lock);
5488 mwl8k_remove_stream(hw, stream);
5489 spin_unlock(&priv->stream_lock);
5493 rc = mwl8k_check_ba(hw, stream, vif);
5495 /* If HW restart is in progress mwl8k_post_cmd will
5496 * return -EBUSY. Avoid retrying mwl8k_check_ba in
5499 if (!rc || rc == -EBUSY)
5502 * HW queues take time to be flushed, give them
5508 spin_lock(&priv->stream_lock);
5510 wiphy_err(hw->wiphy, "Stream for tid %d busy after %d"
5511 " attempts\n", tid, MAX_AMPDU_ATTEMPTS);
5512 mwl8k_remove_stream(hw, stream);
5516 ieee80211_start_tx_ba_cb_irqsafe(vif, addr, tid);
5518 case IEEE80211_AMPDU_TX_STOP_CONT:
5519 case IEEE80211_AMPDU_TX_STOP_FLUSH:
5520 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
5522 if (stream->state == AMPDU_STREAM_ACTIVE) {
5524 spin_unlock(&priv->stream_lock);
5525 mwl8k_destroy_ba(hw, idx);
5526 spin_lock(&priv->stream_lock);
5528 mwl8k_remove_stream(hw, stream);
5530 ieee80211_stop_tx_ba_cb_irqsafe(vif, addr, tid);
5532 case IEEE80211_AMPDU_TX_OPERATIONAL:
5533 BUG_ON(stream == NULL);
5534 BUG_ON(stream->state != AMPDU_STREAM_IN_PROGRESS);
5535 spin_unlock(&priv->stream_lock);
5536 rc = mwl8k_create_ba(hw, stream, buf_size, vif);
5537 spin_lock(&priv->stream_lock);
5539 stream->state = AMPDU_STREAM_ACTIVE;
5542 spin_unlock(&priv->stream_lock);
5543 mwl8k_destroy_ba(hw, idx);
5544 spin_lock(&priv->stream_lock);
5545 wiphy_debug(hw->wiphy,
5546 "Failed adding stream for sta %pM tid %d\n",
5548 mwl8k_remove_stream(hw, stream);
5556 spin_unlock(&priv->stream_lock);
5560 static void mwl8k_sw_scan_start(struct ieee80211_hw *hw,
5561 struct ieee80211_vif *vif,
5564 struct mwl8k_priv *priv = hw->priv;
5570 /* clear all stats */
5571 priv->channel_time = 0;
5572 ioread32(priv->regs + BBU_RXRDY_CNT_REG);
5573 ioread32(priv->regs + NOK_CCA_CNT_REG);
5574 mwl8k_cmd_bbp_reg_access(priv->hw, 0, BBU_AVG_NOISE_VAL, &tmp);
5576 priv->sw_scan_start = true;
5579 static void mwl8k_sw_scan_complete(struct ieee80211_hw *hw,
5580 struct ieee80211_vif *vif)
5582 struct mwl8k_priv *priv = hw->priv;
5588 priv->sw_scan_start = false;
5590 /* clear all stats */
5591 priv->channel_time = 0;
5592 ioread32(priv->regs + BBU_RXRDY_CNT_REG);
5593 ioread32(priv->regs + NOK_CCA_CNT_REG);
5594 mwl8k_cmd_bbp_reg_access(priv->hw, 0, BBU_AVG_NOISE_VAL, &tmp);
5597 static const struct ieee80211_ops mwl8k_ops = {
5599 .start = mwl8k_start,
5601 .add_interface = mwl8k_add_interface,
5602 .remove_interface = mwl8k_remove_interface,
5603 .config = mwl8k_config,
5604 .bss_info_changed = mwl8k_bss_info_changed,
5605 .prepare_multicast = mwl8k_prepare_multicast,
5606 .configure_filter = mwl8k_configure_filter,
5607 .set_key = mwl8k_set_key,
5608 .set_rts_threshold = mwl8k_set_rts_threshold,
5609 .sta_add = mwl8k_sta_add,
5610 .sta_remove = mwl8k_sta_remove,
5611 .conf_tx = mwl8k_conf_tx,
5612 .get_stats = mwl8k_get_stats,
5613 .get_survey = mwl8k_get_survey,
5614 .ampdu_action = mwl8k_ampdu_action,
5615 .sw_scan_start = mwl8k_sw_scan_start,
5616 .sw_scan_complete = mwl8k_sw_scan_complete,
5619 static void mwl8k_finalize_join_worker(struct work_struct *work)
5621 struct mwl8k_priv *priv =
5622 container_of(work, struct mwl8k_priv, finalize_join_worker);
5623 struct sk_buff *skb = priv->beacon_skb;
5624 struct ieee80211_mgmt *mgmt = (void *)skb->data;
5625 int len = skb->len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
5626 const u8 *tim = cfg80211_find_ie(WLAN_EID_TIM,
5627 mgmt->u.beacon.variable, len);
5628 int dtim_period = 1;
5630 if (tim && tim[1] >= 2)
5631 dtim_period = tim[3];
5633 mwl8k_cmd_finalize_join(priv->hw, skb->data, skb->len, dtim_period);
5636 priv->beacon_skb = NULL;
5646 #define MWL8K_8366_AP_FW_API 3
5647 #define _MWL8K_8366_AP_FW(api) "/*(DEBLOBBED)*/"
5648 #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
5650 #define MWL8K_8764_AP_FW_API 1
5651 #define _MWL8K_8764_AP_FW(api) "/*(DEBLOBBED)*/"
5652 #define MWL8K_8764_AP_FW(api) _MWL8K_8764_AP_FW(api)
5654 static struct mwl8k_device_info mwl8k_info_tbl[] = {
5656 .part_name = "88w8363",
5657 .helper_image = "/*(DEBLOBBED)*/",
5658 .fw_image_sta = "/*(DEBLOBBED)*/",
5661 .part_name = "88w8687",
5662 .helper_image = "/*(DEBLOBBED)*/",
5663 .fw_image_sta = "/*(DEBLOBBED)*/",
5666 .part_name = "88w8366",
5667 .helper_image = "/*(DEBLOBBED)*/",
5668 .fw_image_sta = "/*(DEBLOBBED)*/",
5669 .fw_image_ap = MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API),
5670 .fw_api_ap = MWL8K_8366_AP_FW_API,
5671 .ap_rxd_ops = &rxd_ap_ops,
5674 .part_name = "88w8764",
5675 .fw_image_ap = MWL8K_8764_AP_FW(MWL8K_8764_AP_FW_API),
5676 .fw_api_ap = MWL8K_8764_AP_FW_API,
5677 .ap_rxd_ops = &rxd_ap_ops,
5683 static const struct pci_device_id mwl8k_pci_id_table[] = {
5684 { PCI_VDEVICE(MARVELL, 0x2a0a), .driver_data = MWL8363, },
5685 { PCI_VDEVICE(MARVELL, 0x2a0c), .driver_data = MWL8363, },
5686 { PCI_VDEVICE(MARVELL, 0x2a24), .driver_data = MWL8363, },
5687 { PCI_VDEVICE(MARVELL, 0x2a2b), .driver_data = MWL8687, },
5688 { PCI_VDEVICE(MARVELL, 0x2a30), .driver_data = MWL8687, },
5689 { PCI_VDEVICE(MARVELL, 0x2a40), .driver_data = MWL8366, },
5690 { PCI_VDEVICE(MARVELL, 0x2a41), .driver_data = MWL8366, },
5691 { PCI_VDEVICE(MARVELL, 0x2a42), .driver_data = MWL8366, },
5692 { PCI_VDEVICE(MARVELL, 0x2a43), .driver_data = MWL8366, },
5693 { PCI_VDEVICE(MARVELL, 0x2b36), .driver_data = MWL8764, },
5696 MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table);
5698 static int mwl8k_request_alt_fw(struct mwl8k_priv *priv)
5701 printk(KERN_ERR "%s: Error requesting preferred fw %s.\n"
5702 "Trying alternative firmware %s\n", pci_name(priv->pdev),
5703 priv->fw_pref, priv->fw_alt);
5704 rc = mwl8k_request_fw(priv, priv->fw_alt, &priv->fw_ucode, true);
5706 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
5707 pci_name(priv->pdev), priv->fw_alt);
5713 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv);
5714 static void mwl8k_fw_state_machine(const struct firmware *fw, void *context)
5716 struct mwl8k_priv *priv = context;
5717 struct mwl8k_device_info *di = priv->device_info;
5720 switch (priv->fw_state) {
5723 printk(KERN_ERR "%s: Error requesting helper fw %s\n",
5724 pci_name(priv->pdev), di->helper_image);
5727 priv->fw_helper = fw;
5728 rc = mwl8k_request_fw(priv, priv->fw_pref, &priv->fw_ucode,
5730 if (rc && priv->fw_alt) {
5731 rc = mwl8k_request_alt_fw(priv);
5734 priv->fw_state = FW_STATE_LOADING_ALT;
5738 priv->fw_state = FW_STATE_LOADING_PREF;
5741 case FW_STATE_LOADING_PREF:
5744 rc = mwl8k_request_alt_fw(priv);
5747 priv->fw_state = FW_STATE_LOADING_ALT;
5751 priv->fw_ucode = fw;
5752 rc = mwl8k_firmware_load_success(priv);
5756 complete(&priv->firmware_loading_complete);
5760 case FW_STATE_LOADING_ALT:
5762 printk(KERN_ERR "%s: Error requesting alt fw %s\n",
5763 pci_name(priv->pdev), di->helper_image);
5766 priv->fw_ucode = fw;
5767 rc = mwl8k_firmware_load_success(priv);
5771 complete(&priv->firmware_loading_complete);
5775 printk(KERN_ERR "%s: Unexpected firmware loading state: %d\n",
5776 MWL8K_NAME, priv->fw_state);
5783 priv->fw_state = FW_STATE_ERROR;
5784 complete(&priv->firmware_loading_complete);
5785 device_release_driver(&priv->pdev->dev);
5786 mwl8k_release_firmware(priv);
5789 #define MAX_RESTART_ATTEMPTS 1
5790 static int mwl8k_init_firmware(struct ieee80211_hw *hw, char *fw_image,
5793 struct mwl8k_priv *priv = hw->priv;
5795 int count = MAX_RESTART_ATTEMPTS;
5798 /* Reset firmware and hardware */
5799 mwl8k_hw_reset(priv);
5801 /* Ask userland hotplug daemon for the device firmware */
5802 rc = mwl8k_request_firmware(priv, fw_image, nowait);
5804 wiphy_err(hw->wiphy, "Firmware files not found\n");
5811 /* Load firmware into hardware */
5812 rc = mwl8k_load_firmware(hw);
5814 wiphy_err(hw->wiphy, "Cannot start firmware\n");
5816 /* Reclaim memory once firmware is successfully loaded */
5817 mwl8k_release_firmware(priv);
5820 /* FW did not start successfully;
5821 * lets try one more time
5824 wiphy_err(hw->wiphy, "Trying to reload the firmware again\n");
5832 static int mwl8k_init_txqs(struct ieee80211_hw *hw)
5834 struct mwl8k_priv *priv = hw->priv;
5838 for (i = 0; i < mwl8k_tx_queues(priv); i++) {
5839 rc = mwl8k_txq_init(hw, i);
5843 iowrite32(priv->txq[i].txd_dma,
5844 priv->sram + priv->txq_offset[i]);
5849 /* initialize hw after successfully loading a firmware image */
5850 static int mwl8k_probe_hw(struct ieee80211_hw *hw)
5852 struct mwl8k_priv *priv = hw->priv;
5857 priv->rxd_ops = priv->device_info->ap_rxd_ops;
5858 if (priv->rxd_ops == NULL) {
5859 wiphy_err(hw->wiphy,
5860 "Driver does not have AP firmware image support for this hardware\n");
5862 goto err_stop_firmware;
5865 priv->rxd_ops = &rxd_sta_ops;
5868 priv->sniffer_enabled = false;
5869 priv->wmm_enabled = false;
5870 priv->pending_tx_pkts = 0;
5871 atomic_set(&priv->watchdog_event_pending, 0);
5873 rc = mwl8k_rxq_init(hw, 0);
5875 goto err_stop_firmware;
5876 rxq_refill(hw, 0, INT_MAX);
5878 /* For the sta firmware, we need to know the dma addresses of tx queues
5879 * before sending MWL8K_CMD_GET_HW_SPEC. So we must initialize them
5880 * prior to issuing this command. But for the AP case, we learn the
5881 * total number of queues from the result CMD_GET_HW_SPEC, so for this
5882 * case we must initialize the tx queues after.
5884 priv->num_ampdu_queues = 0;
5886 rc = mwl8k_init_txqs(hw);
5888 goto err_free_queues;
5891 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
5892 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5893 iowrite32(MWL8K_A2H_INT_TX_DONE|MWL8K_A2H_INT_RX_READY|
5894 MWL8K_A2H_INT_BA_WATCHDOG,
5895 priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL);
5896 iowrite32(MWL8K_A2H_INT_OPC_DONE,
5897 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
5899 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
5900 IRQF_SHARED, MWL8K_NAME, hw);
5902 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
5903 goto err_free_queues;
5907 * When hw restart is requested,
5908 * mac80211 will take care of clearing
5909 * the ampdu streams, so do not clear
5910 * the ampdu state here
5912 if (!priv->hw_restart_in_progress)
5913 memset(priv->ampdu, 0, sizeof(priv->ampdu));
5916 * Temporarily enable interrupts. Initial firmware host
5917 * commands use interrupts and avoid polling. Disable
5918 * interrupts when done.
5920 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5922 /* Get config data, mac addrs etc */
5924 rc = mwl8k_cmd_get_hw_spec_ap(hw);
5926 rc = mwl8k_init_txqs(hw);
5928 rc = mwl8k_cmd_set_hw_spec(hw);
5930 rc = mwl8k_cmd_get_hw_spec_sta(hw);
5933 wiphy_err(hw->wiphy, "Cannot initialise firmware\n");
5937 /* Turn radio off */
5938 rc = mwl8k_cmd_radio_disable(hw);
5940 wiphy_err(hw->wiphy, "Cannot disable\n");
5944 /* Clear MAC address */
5945 rc = mwl8k_cmd_set_mac_addr(hw, NULL, "\x00\x00\x00\x00\x00\x00");
5947 wiphy_err(hw->wiphy, "Cannot clear MAC address\n");
5951 /* Configure Antennas */
5952 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_RX, 0x3);
5954 wiphy_warn(hw->wiphy, "failed to set # of RX antennas");
5955 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_TX, 0x7);
5957 wiphy_warn(hw->wiphy, "failed to set # of TX antennas");
5960 /* Disable interrupts */
5961 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5962 free_irq(priv->pdev->irq, hw);
5964 wiphy_info(hw->wiphy, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
5965 priv->device_info->part_name,
5966 priv->hw_rev, hw->wiphy->perm_addr,
5967 priv->ap_fw ? "AP" : "STA",
5968 (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff,
5969 (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff);
5974 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
5975 free_irq(priv->pdev->irq, hw);
5978 for (i = 0; i < mwl8k_tx_queues(priv); i++)
5979 mwl8k_txq_deinit(hw, i);
5980 mwl8k_rxq_deinit(hw, 0);
5983 mwl8k_hw_reset(priv);
5989 * invoke mwl8k_reload_firmware to change the firmware image after the device
5990 * has already been registered
5992 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image)
5995 struct mwl8k_priv *priv = hw->priv;
5996 struct mwl8k_vif *vif, *tmp_vif;
5999 mwl8k_rxq_deinit(hw, 0);
6002 * All the existing interfaces are re-added by the ieee80211_reconfig;
6003 * which means driver should remove existing interfaces before calling
6004 * ieee80211_restart_hw
6006 if (priv->hw_restart_in_progress)
6007 list_for_each_entry_safe(vif, tmp_vif, &priv->vif_list, list)
6008 mwl8k_remove_vif(priv, vif);
6010 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6011 mwl8k_txq_deinit(hw, i);
6013 rc = mwl8k_init_firmware(hw, fw_image, false);
6017 rc = mwl8k_probe_hw(hw);
6021 if (priv->hw_restart_in_progress)
6024 rc = mwl8k_start(hw);
6028 rc = mwl8k_config(hw, ~0);
6032 for (i = 0; i < MWL8K_TX_WMM_QUEUES; i++) {
6033 rc = mwl8k_conf_tx(hw, NULL, i, &priv->wmm_params[i]);
6041 printk(KERN_WARNING "mwl8k: Failed to reload firmware image.\n");
6045 static const struct ieee80211_iface_limit ap_if_limits[] = {
6046 { .max = 8, .types = BIT(NL80211_IFTYPE_AP) },
6047 { .max = 1, .types = BIT(NL80211_IFTYPE_STATION) },
6050 static const struct ieee80211_iface_combination ap_if_comb = {
6051 .limits = ap_if_limits,
6052 .n_limits = ARRAY_SIZE(ap_if_limits),
6053 .max_interfaces = 8,
6054 .num_different_channels = 1,
6058 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv)
6060 struct ieee80211_hw *hw = priv->hw;
6063 rc = mwl8k_load_firmware(hw);
6064 mwl8k_release_firmware(priv);
6066 wiphy_err(hw->wiphy, "Cannot start firmware\n");
6071 * Extra headroom is the size of the required DMA header
6072 * minus the size of the smallest 802.11 frame (CTS frame).
6074 hw->extra_tx_headroom =
6075 sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts);
6077 hw->extra_tx_headroom -= priv->ap_fw ? REDUCED_TX_HEADROOM : 0;
6079 hw->queues = MWL8K_TX_WMM_QUEUES;
6081 /* Set rssi values to dBm */
6082 ieee80211_hw_set(hw, SIGNAL_DBM);
6083 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
6086 * Ask mac80211 to not to trigger PS mode
6087 * based on PM bit of incoming frames.
6090 ieee80211_hw_set(hw, AP_LINK_PS);
6092 hw->vif_data_size = sizeof(struct mwl8k_vif);
6093 hw->sta_data_size = sizeof(struct mwl8k_sta);
6095 priv->macids_used = 0;
6096 INIT_LIST_HEAD(&priv->vif_list);
6098 /* Set default radio state and preamble */
6099 priv->radio_on = false;
6100 priv->radio_short_preamble = false;
6102 /* Finalize join worker */
6103 INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker);
6104 /* Handle watchdog ba events */
6105 INIT_WORK(&priv->watchdog_ba_handle, mwl8k_watchdog_ba_events);
6106 /* To reload the firmware if it crashes */
6107 INIT_WORK(&priv->fw_reload, mwl8k_hw_restart_work);
6109 /* TX reclaim and RX tasklets. */
6110 tasklet_init(&priv->poll_tx_task, mwl8k_tx_poll, (unsigned long)hw);
6111 tasklet_disable(&priv->poll_tx_task);
6112 tasklet_init(&priv->poll_rx_task, mwl8k_rx_poll, (unsigned long)hw);
6113 tasklet_disable(&priv->poll_rx_task);
6115 /* Power management cookie */
6116 priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma);
6117 if (priv->cookie == NULL)
6120 mutex_init(&priv->fw_mutex);
6121 priv->fw_mutex_owner = NULL;
6122 priv->fw_mutex_depth = 0;
6123 priv->hostcmd_wait = NULL;
6125 spin_lock_init(&priv->tx_lock);
6127 spin_lock_init(&priv->stream_lock);
6129 priv->tx_wait = NULL;
6131 rc = mwl8k_probe_hw(hw);
6133 goto err_free_cookie;
6135 hw->wiphy->interface_modes = 0;
6137 if (priv->ap_macids_supported || priv->device_info->fw_image_ap) {
6138 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP);
6139 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION);
6140 hw->wiphy->iface_combinations = &ap_if_comb;
6141 hw->wiphy->n_iface_combinations = 1;
6144 if (priv->sta_macids_supported || priv->device_info->fw_image_sta)
6145 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION);
6147 wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
6149 rc = ieee80211_register_hw(hw);
6151 wiphy_err(hw->wiphy, "Cannot register device\n");
6152 goto err_unprobe_hw;
6158 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6159 mwl8k_txq_deinit(hw, i);
6160 mwl8k_rxq_deinit(hw, 0);
6163 if (priv->cookie != NULL)
6164 pci_free_consistent(priv->pdev, 4,
6165 priv->cookie, priv->cookie_dma);
6169 static int mwl8k_probe(struct pci_dev *pdev,
6170 const struct pci_device_id *id)
6172 static int printed_version;
6173 struct ieee80211_hw *hw;
6174 struct mwl8k_priv *priv;
6175 struct mwl8k_device_info *di;
6178 if (!printed_version) {
6179 printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION);
6180 printed_version = 1;
6184 rc = pci_enable_device(pdev);
6186 printk(KERN_ERR "%s: Cannot enable new PCI device\n",
6191 rc = pci_request_regions(pdev, MWL8K_NAME);
6193 printk(KERN_ERR "%s: Cannot obtain PCI resources\n",
6195 goto err_disable_device;
6198 pci_set_master(pdev);
6201 hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops);
6203 printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME);
6208 SET_IEEE80211_DEV(hw, &pdev->dev);
6209 pci_set_drvdata(pdev, hw);
6214 priv->device_info = &mwl8k_info_tbl[id->driver_data];
6216 if (id->driver_data == MWL8764)
6217 priv->is_8764 = true;
6219 priv->sram = pci_iomap(pdev, 0, 0x10000);
6220 if (priv->sram == NULL) {
6221 wiphy_err(hw->wiphy, "Cannot map device SRAM\n");
6227 * If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
6228 * If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
6230 priv->regs = pci_iomap(pdev, 1, 0x10000);
6231 if (priv->regs == NULL) {
6232 priv->regs = pci_iomap(pdev, 2, 0x10000);
6233 if (priv->regs == NULL) {
6234 wiphy_err(hw->wiphy, "Cannot map device registers\n");
6241 * Choose the initial fw image depending on user input. If a second
6242 * image is available, make it the alternative image that will be
6243 * loaded if the first one fails.
6245 init_completion(&priv->firmware_loading_complete);
6246 di = priv->device_info;
6247 if (ap_mode_default && di->fw_image_ap) {
6248 priv->fw_pref = di->fw_image_ap;
6249 priv->fw_alt = di->fw_image_sta;
6250 } else if (!ap_mode_default && di->fw_image_sta) {
6251 priv->fw_pref = di->fw_image_sta;
6252 priv->fw_alt = di->fw_image_ap;
6253 } else if (ap_mode_default && !di->fw_image_ap && di->fw_image_sta) {
6254 printk(KERN_WARNING "AP fw is unavailable. Using STA fw.");
6255 priv->fw_pref = di->fw_image_sta;
6256 } else if (!ap_mode_default && !di->fw_image_sta && di->fw_image_ap) {
6257 printk(KERN_WARNING "STA fw is unavailable. Using AP fw.");
6258 priv->fw_pref = di->fw_image_ap;
6260 rc = mwl8k_init_firmware(hw, priv->fw_pref, true);
6262 goto err_stop_firmware;
6264 priv->hw_restart_in_progress = false;
6266 priv->running_bsses = 0;
6271 mwl8k_hw_reset(priv);
6274 if (priv->regs != NULL)
6275 pci_iounmap(pdev, priv->regs);
6277 if (priv->sram != NULL)
6278 pci_iounmap(pdev, priv->sram);
6280 ieee80211_free_hw(hw);
6283 pci_release_regions(pdev);
6286 pci_disable_device(pdev);
6291 static void mwl8k_remove(struct pci_dev *pdev)
6293 struct ieee80211_hw *hw = pci_get_drvdata(pdev);
6294 struct mwl8k_priv *priv;
6301 wait_for_completion(&priv->firmware_loading_complete);
6303 if (priv->fw_state == FW_STATE_ERROR) {
6304 mwl8k_hw_reset(priv);
6308 ieee80211_stop_queues(hw);
6310 ieee80211_unregister_hw(hw);
6312 /* Remove TX reclaim and RX tasklets. */
6313 tasklet_kill(&priv->poll_tx_task);
6314 tasklet_kill(&priv->poll_rx_task);
6317 mwl8k_hw_reset(priv);
6319 /* Return all skbs to mac80211 */
6320 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6321 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
6323 for (i = 0; i < mwl8k_tx_queues(priv); i++)
6324 mwl8k_txq_deinit(hw, i);
6326 mwl8k_rxq_deinit(hw, 0);
6328 pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma);
6331 pci_iounmap(pdev, priv->regs);
6332 pci_iounmap(pdev, priv->sram);
6333 ieee80211_free_hw(hw);
6334 pci_release_regions(pdev);
6335 pci_disable_device(pdev);
6338 static struct pci_driver mwl8k_driver = {
6340 .id_table = mwl8k_pci_id_table,
6341 .probe = mwl8k_probe,
6342 .remove = mwl8k_remove,
6345 module_pci_driver(mwl8k_driver);
6347 MODULE_DESCRIPTION(MWL8K_DESC);
6348 MODULE_VERSION(MWL8K_VERSION);
6349 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
6350 MODULE_LICENSE("GPL");