2 * drivers/net/wireless/mwl8k.c
3 * Driver for Marvell TOPDOG 802.11 Wireless cards
5 * Copyright (C) 2008, 2009, 2010 Marvell Semiconductor Inc.
7 * This file is licensed under the terms of the GNU General Public
8 * License version 2. This program is licensed "as is" without any
9 * warranty of any kind, whether express or implied.
12 #include <linux/init.h>
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/sched.h>
16 #include <linux/spinlock.h>
17 #include <linux/list.h>
18 #include <linux/pci.h>
19 #include <linux/delay.h>
20 #include <linux/completion.h>
21 #include <linux/etherdevice.h>
22 #include <linux/slab.h>
23 #include <net/mac80211.h>
24 #include <linux/moduleparam.h>
25 #include <linux/firmware.h>
26 #include <linux/workqueue.h>
28 #define MWL8K_DESC "Marvell TOPDOG(R) 802.11 Wireless Network Driver"
29 #define MWL8K_NAME KBUILD_MODNAME
30 #define MWL8K_VERSION "0.12"
32 /* Module parameters */
33 static unsigned ap_mode_default;
34 module_param(ap_mode_default, bool, 0);
35 MODULE_PARM_DESC(ap_mode_default,
36 "Set to 1 to make ap mode the default instead of sta mode");
38 /* Register definitions */
39 #define MWL8K_HIU_GEN_PTR 0x00000c10
40 #define MWL8K_MODE_STA 0x0000005a
41 #define MWL8K_MODE_AP 0x000000a5
42 #define MWL8K_HIU_INT_CODE 0x00000c14
43 #define MWL8K_FWSTA_READY 0xf0f1f2f4
44 #define MWL8K_FWAP_READY 0xf1f2f4a5
45 #define MWL8K_INT_CODE_CMD_FINISHED 0x00000005
46 #define MWL8K_HIU_SCRATCH 0x00000c40
48 /* Host->device communications */
49 #define MWL8K_HIU_H2A_INTERRUPT_EVENTS 0x00000c18
50 #define MWL8K_HIU_H2A_INTERRUPT_STATUS 0x00000c1c
51 #define MWL8K_HIU_H2A_INTERRUPT_MASK 0x00000c20
52 #define MWL8K_HIU_H2A_INTERRUPT_CLEAR_SEL 0x00000c24
53 #define MWL8K_HIU_H2A_INTERRUPT_STATUS_MASK 0x00000c28
54 #define MWL8K_H2A_INT_DUMMY (1 << 20)
55 #define MWL8K_H2A_INT_RESET (1 << 15)
56 #define MWL8K_H2A_INT_DOORBELL (1 << 1)
57 #define MWL8K_H2A_INT_PPA_READY (1 << 0)
59 /* Device->host communications */
60 #define MWL8K_HIU_A2H_INTERRUPT_EVENTS 0x00000c2c
61 #define MWL8K_HIU_A2H_INTERRUPT_STATUS 0x00000c30
62 #define MWL8K_HIU_A2H_INTERRUPT_MASK 0x00000c34
63 #define MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL 0x00000c38
64 #define MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK 0x00000c3c
65 #define MWL8K_A2H_INT_DUMMY (1 << 20)
66 #define MWL8K_A2H_INT_CHNL_SWITCHED (1 << 11)
67 #define MWL8K_A2H_INT_QUEUE_EMPTY (1 << 10)
68 #define MWL8K_A2H_INT_RADAR_DETECT (1 << 7)
69 #define MWL8K_A2H_INT_RADIO_ON (1 << 6)
70 #define MWL8K_A2H_INT_RADIO_OFF (1 << 5)
71 #define MWL8K_A2H_INT_MAC_EVENT (1 << 3)
72 #define MWL8K_A2H_INT_OPC_DONE (1 << 2)
73 #define MWL8K_A2H_INT_RX_READY (1 << 1)
74 #define MWL8K_A2H_INT_TX_DONE (1 << 0)
76 #define MWL8K_A2H_EVENTS (MWL8K_A2H_INT_DUMMY | \
77 MWL8K_A2H_INT_CHNL_SWITCHED | \
78 MWL8K_A2H_INT_QUEUE_EMPTY | \
79 MWL8K_A2H_INT_RADAR_DETECT | \
80 MWL8K_A2H_INT_RADIO_ON | \
81 MWL8K_A2H_INT_RADIO_OFF | \
82 MWL8K_A2H_INT_MAC_EVENT | \
83 MWL8K_A2H_INT_OPC_DONE | \
84 MWL8K_A2H_INT_RX_READY | \
85 MWL8K_A2H_INT_TX_DONE)
87 #define MWL8K_RX_QUEUES 1
88 #define MWL8K_TX_QUEUES 4
92 void (*rxd_init)(void *rxd, dma_addr_t next_dma_addr);
93 void (*rxd_refill)(void *rxd, dma_addr_t addr, int len);
94 int (*rxd_process)(void *rxd, struct ieee80211_rx_status *status,
95 __le16 *qos, s8 *noise);
98 struct mwl8k_device_info {
103 struct rxd_ops *ap_rxd_ops;
107 struct mwl8k_rx_queue {
110 /* hw receives here */
113 /* refill descs here */
120 DEFINE_DMA_UNMAP_ADDR(dma);
124 struct mwl8k_tx_queue {
125 /* hw transmits here */
128 /* sw appends here */
132 struct mwl8k_tx_desc *txd;
134 struct sk_buff **skb;
138 struct ieee80211_hw *hw;
139 struct pci_dev *pdev;
141 struct mwl8k_device_info *device_info;
147 struct firmware *fw_helper;
148 struct firmware *fw_ucode;
150 /* hardware/firmware parameters */
152 struct rxd_ops *rxd_ops;
153 struct ieee80211_supported_band band_24;
154 struct ieee80211_channel channels_24[14];
155 struct ieee80211_rate rates_24[14];
156 struct ieee80211_supported_band band_50;
157 struct ieee80211_channel channels_50[4];
158 struct ieee80211_rate rates_50[9];
159 u32 ap_macids_supported;
160 u32 sta_macids_supported;
162 /* firmware access */
163 struct mutex fw_mutex;
164 struct task_struct *fw_mutex_owner;
166 struct completion *hostcmd_wait;
168 /* lock held over TX and TX reap */
171 /* TX quiesce completion, protected by fw_mutex and tx_lock */
172 struct completion *tx_wait;
174 /* List of interfaces. */
176 struct list_head vif_list;
178 /* power management status cookie from firmware */
180 dma_addr_t cookie_dma;
187 * Running count of TX packets in flight, to avoid
188 * iterating over the transmit rings each time.
192 struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES];
193 struct mwl8k_tx_queue txq[MWL8K_TX_QUEUES];
196 bool radio_short_preamble;
197 bool sniffer_enabled;
200 /* XXX need to convert this to handle multiple interfaces */
202 u8 capture_bssid[ETH_ALEN];
203 struct sk_buff *beacon_skb;
206 * This FJ worker has to be global as it is scheduled from the
207 * RX handler. At this point we don't know which interface it
208 * belongs to until the list of bssids waiting to complete join
211 struct work_struct finalize_join_worker;
213 /* Tasklet to perform TX reclaim. */
214 struct tasklet_struct poll_tx_task;
216 /* Tasklet to perform RX. */
217 struct tasklet_struct poll_rx_task;
219 /* Most recently reported noise in dBm */
223 * preserve the queue configurations so they can be restored if/when
224 * the firmware image is swapped.
226 struct ieee80211_tx_queue_params wmm_params[MWL8K_TX_QUEUES];
229 /* Per interface specific private data */
231 struct list_head list;
232 struct ieee80211_vif *vif;
234 /* Firmware macid for this vif. */
237 /* Non AMPDU sequence number assigned by driver. */
240 #define MWL8K_VIF(_vif) ((struct mwl8k_vif *)&((_vif)->drv_priv))
243 /* Index into station database. Returned by UPDATE_STADB. */
246 #define MWL8K_STA(_sta) ((struct mwl8k_sta *)&((_sta)->drv_priv))
248 static const struct ieee80211_channel mwl8k_channels_24[] = {
249 { .center_freq = 2412, .hw_value = 1, },
250 { .center_freq = 2417, .hw_value = 2, },
251 { .center_freq = 2422, .hw_value = 3, },
252 { .center_freq = 2427, .hw_value = 4, },
253 { .center_freq = 2432, .hw_value = 5, },
254 { .center_freq = 2437, .hw_value = 6, },
255 { .center_freq = 2442, .hw_value = 7, },
256 { .center_freq = 2447, .hw_value = 8, },
257 { .center_freq = 2452, .hw_value = 9, },
258 { .center_freq = 2457, .hw_value = 10, },
259 { .center_freq = 2462, .hw_value = 11, },
260 { .center_freq = 2467, .hw_value = 12, },
261 { .center_freq = 2472, .hw_value = 13, },
262 { .center_freq = 2484, .hw_value = 14, },
265 static const struct ieee80211_rate mwl8k_rates_24[] = {
266 { .bitrate = 10, .hw_value = 2, },
267 { .bitrate = 20, .hw_value = 4, },
268 { .bitrate = 55, .hw_value = 11, },
269 { .bitrate = 110, .hw_value = 22, },
270 { .bitrate = 220, .hw_value = 44, },
271 { .bitrate = 60, .hw_value = 12, },
272 { .bitrate = 90, .hw_value = 18, },
273 { .bitrate = 120, .hw_value = 24, },
274 { .bitrate = 180, .hw_value = 36, },
275 { .bitrate = 240, .hw_value = 48, },
276 { .bitrate = 360, .hw_value = 72, },
277 { .bitrate = 480, .hw_value = 96, },
278 { .bitrate = 540, .hw_value = 108, },
279 { .bitrate = 720, .hw_value = 144, },
282 static const struct ieee80211_channel mwl8k_channels_50[] = {
283 { .center_freq = 5180, .hw_value = 36, },
284 { .center_freq = 5200, .hw_value = 40, },
285 { .center_freq = 5220, .hw_value = 44, },
286 { .center_freq = 5240, .hw_value = 48, },
289 static const struct ieee80211_rate mwl8k_rates_50[] = {
290 { .bitrate = 60, .hw_value = 12, },
291 { .bitrate = 90, .hw_value = 18, },
292 { .bitrate = 120, .hw_value = 24, },
293 { .bitrate = 180, .hw_value = 36, },
294 { .bitrate = 240, .hw_value = 48, },
295 { .bitrate = 360, .hw_value = 72, },
296 { .bitrate = 480, .hw_value = 96, },
297 { .bitrate = 540, .hw_value = 108, },
298 { .bitrate = 720, .hw_value = 144, },
301 /* Set or get info from Firmware */
302 #define MWL8K_CMD_GET 0x0000
303 #define MWL8K_CMD_SET 0x0001
304 #define MWL8K_CMD_SET_LIST 0x0002
306 /* Firmware command codes */
307 #define MWL8K_CMD_CODE_DNLD 0x0001
308 #define MWL8K_CMD_GET_HW_SPEC 0x0003
309 #define MWL8K_CMD_SET_HW_SPEC 0x0004
310 #define MWL8K_CMD_MAC_MULTICAST_ADR 0x0010
311 #define MWL8K_CMD_GET_STAT 0x0014
312 #define MWL8K_CMD_RADIO_CONTROL 0x001c
313 #define MWL8K_CMD_RF_TX_POWER 0x001e
314 #define MWL8K_CMD_TX_POWER 0x001f
315 #define MWL8K_CMD_RF_ANTENNA 0x0020
316 #define MWL8K_CMD_SET_BEACON 0x0100 /* per-vif */
317 #define MWL8K_CMD_SET_PRE_SCAN 0x0107
318 #define MWL8K_CMD_SET_POST_SCAN 0x0108
319 #define MWL8K_CMD_SET_RF_CHANNEL 0x010a
320 #define MWL8K_CMD_SET_AID 0x010d
321 #define MWL8K_CMD_SET_RATE 0x0110
322 #define MWL8K_CMD_SET_FINALIZE_JOIN 0x0111
323 #define MWL8K_CMD_RTS_THRESHOLD 0x0113
324 #define MWL8K_CMD_SET_SLOT 0x0114
325 #define MWL8K_CMD_SET_EDCA_PARAMS 0x0115
326 #define MWL8K_CMD_SET_WMM_MODE 0x0123
327 #define MWL8K_CMD_MIMO_CONFIG 0x0125
328 #define MWL8K_CMD_USE_FIXED_RATE 0x0126
329 #define MWL8K_CMD_ENABLE_SNIFFER 0x0150
330 #define MWL8K_CMD_SET_MAC_ADDR 0x0202 /* per-vif */
331 #define MWL8K_CMD_SET_RATEADAPT_MODE 0x0203
332 #define MWL8K_CMD_BSS_START 0x1100 /* per-vif */
333 #define MWL8K_CMD_SET_NEW_STN 0x1111 /* per-vif */
334 #define MWL8K_CMD_UPDATE_STADB 0x1123
336 static const char *mwl8k_cmd_name(__le16 cmd, char *buf, int bufsize)
338 u16 command = le16_to_cpu(cmd);
340 #define MWL8K_CMDNAME(x) case MWL8K_CMD_##x: do {\
341 snprintf(buf, bufsize, "%s", #x);\
344 switch (command & ~0x8000) {
345 MWL8K_CMDNAME(CODE_DNLD);
346 MWL8K_CMDNAME(GET_HW_SPEC);
347 MWL8K_CMDNAME(SET_HW_SPEC);
348 MWL8K_CMDNAME(MAC_MULTICAST_ADR);
349 MWL8K_CMDNAME(GET_STAT);
350 MWL8K_CMDNAME(RADIO_CONTROL);
351 MWL8K_CMDNAME(RF_TX_POWER);
352 MWL8K_CMDNAME(TX_POWER);
353 MWL8K_CMDNAME(RF_ANTENNA);
354 MWL8K_CMDNAME(SET_BEACON);
355 MWL8K_CMDNAME(SET_PRE_SCAN);
356 MWL8K_CMDNAME(SET_POST_SCAN);
357 MWL8K_CMDNAME(SET_RF_CHANNEL);
358 MWL8K_CMDNAME(SET_AID);
359 MWL8K_CMDNAME(SET_RATE);
360 MWL8K_CMDNAME(SET_FINALIZE_JOIN);
361 MWL8K_CMDNAME(RTS_THRESHOLD);
362 MWL8K_CMDNAME(SET_SLOT);
363 MWL8K_CMDNAME(SET_EDCA_PARAMS);
364 MWL8K_CMDNAME(SET_WMM_MODE);
365 MWL8K_CMDNAME(MIMO_CONFIG);
366 MWL8K_CMDNAME(USE_FIXED_RATE);
367 MWL8K_CMDNAME(ENABLE_SNIFFER);
368 MWL8K_CMDNAME(SET_MAC_ADDR);
369 MWL8K_CMDNAME(SET_RATEADAPT_MODE);
370 MWL8K_CMDNAME(BSS_START);
371 MWL8K_CMDNAME(SET_NEW_STN);
372 MWL8K_CMDNAME(UPDATE_STADB);
374 snprintf(buf, bufsize, "0x%x", cmd);
381 /* Hardware and firmware reset */
382 static void mwl8k_hw_reset(struct mwl8k_priv *priv)
384 iowrite32(MWL8K_H2A_INT_RESET,
385 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
386 iowrite32(MWL8K_H2A_INT_RESET,
387 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
391 /* Release fw image */
392 static void mwl8k_release_fw(struct firmware **fw)
396 release_firmware(*fw);
400 static void mwl8k_release_firmware(struct mwl8k_priv *priv)
402 mwl8k_release_fw(&priv->fw_ucode);
403 mwl8k_release_fw(&priv->fw_helper);
406 /* Request fw image */
407 static int mwl8k_request_fw(struct mwl8k_priv *priv,
408 const char *fname, struct firmware **fw)
410 /* release current image */
412 mwl8k_release_fw(fw);
414 return request_firmware((const struct firmware **)fw,
415 fname, &priv->pdev->dev);
418 static int mwl8k_request_firmware(struct mwl8k_priv *priv, char *fw_image)
420 struct mwl8k_device_info *di = priv->device_info;
423 if (di->helper_image != NULL) {
424 rc = mwl8k_request_fw(priv, di->helper_image, &priv->fw_helper);
426 printk(KERN_ERR "%s: Error requesting helper "
427 "firmware file %s\n", pci_name(priv->pdev),
433 rc = mwl8k_request_fw(priv, fw_image, &priv->fw_ucode);
435 printk(KERN_ERR "%s: Error requesting firmware file %s\n",
436 pci_name(priv->pdev), fw_image);
437 mwl8k_release_fw(&priv->fw_helper);
444 struct mwl8k_cmd_pkt {
457 mwl8k_send_fw_load_cmd(struct mwl8k_priv *priv, void *data, int length)
459 void __iomem *regs = priv->regs;
463 dma_addr = pci_map_single(priv->pdev, data, length, PCI_DMA_TODEVICE);
464 if (pci_dma_mapping_error(priv->pdev, dma_addr))
467 iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
468 iowrite32(0, regs + MWL8K_HIU_INT_CODE);
469 iowrite32(MWL8K_H2A_INT_DOORBELL,
470 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
471 iowrite32(MWL8K_H2A_INT_DUMMY,
472 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
478 int_code = ioread32(regs + MWL8K_HIU_INT_CODE);
479 if (int_code == MWL8K_INT_CODE_CMD_FINISHED) {
480 iowrite32(0, regs + MWL8K_HIU_INT_CODE);
488 pci_unmap_single(priv->pdev, dma_addr, length, PCI_DMA_TODEVICE);
490 return loops ? 0 : -ETIMEDOUT;
493 static int mwl8k_load_fw_image(struct mwl8k_priv *priv,
494 const u8 *data, size_t length)
496 struct mwl8k_cmd_pkt *cmd;
500 cmd = kmalloc(sizeof(*cmd) + 256, GFP_KERNEL);
504 cmd->code = cpu_to_le16(MWL8K_CMD_CODE_DNLD);
511 int block_size = length > 256 ? 256 : length;
513 memcpy(cmd->payload, data + done, block_size);
514 cmd->length = cpu_to_le16(block_size);
516 rc = mwl8k_send_fw_load_cmd(priv, cmd,
517 sizeof(*cmd) + block_size);
522 length -= block_size;
527 rc = mwl8k_send_fw_load_cmd(priv, cmd, sizeof(*cmd));
535 static int mwl8k_feed_fw_image(struct mwl8k_priv *priv,
536 const u8 *data, size_t length)
538 unsigned char *buffer;
539 int may_continue, rc = 0;
540 u32 done, prev_block_size;
542 buffer = kmalloc(1024, GFP_KERNEL);
549 while (may_continue > 0) {
552 block_size = ioread32(priv->regs + MWL8K_HIU_SCRATCH);
553 if (block_size & 1) {
557 done += prev_block_size;
558 length -= prev_block_size;
561 if (block_size > 1024 || block_size > length) {
571 if (block_size == 0) {
578 prev_block_size = block_size;
579 memcpy(buffer, data + done, block_size);
581 rc = mwl8k_send_fw_load_cmd(priv, buffer, block_size);
586 if (!rc && length != 0)
594 static int mwl8k_load_firmware(struct ieee80211_hw *hw)
596 struct mwl8k_priv *priv = hw->priv;
597 struct firmware *fw = priv->fw_ucode;
601 if (!memcmp(fw->data, "\x01\x00\x00\x00", 4)) {
602 struct firmware *helper = priv->fw_helper;
604 if (helper == NULL) {
605 printk(KERN_ERR "%s: helper image needed but none "
606 "given\n", pci_name(priv->pdev));
610 rc = mwl8k_load_fw_image(priv, helper->data, helper->size);
612 printk(KERN_ERR "%s: unable to load firmware "
613 "helper image\n", pci_name(priv->pdev));
618 rc = mwl8k_feed_fw_image(priv, fw->data, fw->size);
620 rc = mwl8k_load_fw_image(priv, fw->data, fw->size);
624 printk(KERN_ERR "%s: unable to load firmware image\n",
625 pci_name(priv->pdev));
629 iowrite32(MWL8K_MODE_STA, priv->regs + MWL8K_HIU_GEN_PTR);
635 ready_code = ioread32(priv->regs + MWL8K_HIU_INT_CODE);
636 if (ready_code == MWL8K_FWAP_READY) {
639 } else if (ready_code == MWL8K_FWSTA_READY) {
648 return loops ? 0 : -ETIMEDOUT;
652 /* DMA header used by firmware and hardware. */
653 struct mwl8k_dma_data {
655 struct ieee80211_hdr wh;
659 /* Routines to add/remove DMA header from skb. */
660 static inline void mwl8k_remove_dma_header(struct sk_buff *skb, __le16 qos)
662 struct mwl8k_dma_data *tr;
665 tr = (struct mwl8k_dma_data *)skb->data;
666 hdrlen = ieee80211_hdrlen(tr->wh.frame_control);
668 if (hdrlen != sizeof(tr->wh)) {
669 if (ieee80211_is_data_qos(tr->wh.frame_control)) {
670 memmove(tr->data - hdrlen, &tr->wh, hdrlen - 2);
671 *((__le16 *)(tr->data - 2)) = qos;
673 memmove(tr->data - hdrlen, &tr->wh, hdrlen);
677 if (hdrlen != sizeof(*tr))
678 skb_pull(skb, sizeof(*tr) - hdrlen);
681 static inline void mwl8k_add_dma_header(struct sk_buff *skb)
683 struct ieee80211_hdr *wh;
685 struct mwl8k_dma_data *tr;
688 * Add a firmware DMA header; the firmware requires that we
689 * present a 2-byte payload length followed by a 4-address
690 * header (without QoS field), followed (optionally) by any
691 * WEP/ExtIV header (but only filled in for CCMP).
693 wh = (struct ieee80211_hdr *)skb->data;
695 hdrlen = ieee80211_hdrlen(wh->frame_control);
696 if (hdrlen != sizeof(*tr))
697 skb_push(skb, sizeof(*tr) - hdrlen);
699 if (ieee80211_is_data_qos(wh->frame_control))
702 tr = (struct mwl8k_dma_data *)skb->data;
704 memmove(&tr->wh, wh, hdrlen);
705 if (hdrlen != sizeof(tr->wh))
706 memset(((void *)&tr->wh) + hdrlen, 0, sizeof(tr->wh) - hdrlen);
709 * Firmware length is the length of the fully formed "802.11
710 * payload". That is, everything except for the 802.11 header.
711 * This includes all crypto material including the MIC.
713 tr->fwlen = cpu_to_le16(skb->len - sizeof(*tr));
718 * Packet reception for 88w8366 AP firmware.
720 struct mwl8k_rxd_8366_ap {
724 __le32 pkt_phys_addr;
725 __le32 next_rxd_phys_addr;
729 __le32 hw_noise_floor_info;
738 #define MWL8K_8366_AP_RATE_INFO_MCS_FORMAT 0x80
739 #define MWL8K_8366_AP_RATE_INFO_40MHZ 0x40
740 #define MWL8K_8366_AP_RATE_INFO_RATEID(x) ((x) & 0x3f)
742 #define MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST 0x80
744 static void mwl8k_rxd_8366_ap_init(void *_rxd, dma_addr_t next_dma_addr)
746 struct mwl8k_rxd_8366_ap *rxd = _rxd;
748 rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr);
749 rxd->rx_ctrl = MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST;
752 static void mwl8k_rxd_8366_ap_refill(void *_rxd, dma_addr_t addr, int len)
754 struct mwl8k_rxd_8366_ap *rxd = _rxd;
756 rxd->pkt_len = cpu_to_le16(len);
757 rxd->pkt_phys_addr = cpu_to_le32(addr);
763 mwl8k_rxd_8366_ap_process(void *_rxd, struct ieee80211_rx_status *status,
764 __le16 *qos, s8 *noise)
766 struct mwl8k_rxd_8366_ap *rxd = _rxd;
768 if (!(rxd->rx_ctrl & MWL8K_8366_AP_RX_CTRL_OWNED_BY_HOST))
772 memset(status, 0, sizeof(*status));
774 status->signal = -rxd->rssi;
775 *noise = -rxd->noise_floor;
777 if (rxd->rate & MWL8K_8366_AP_RATE_INFO_MCS_FORMAT) {
778 status->flag |= RX_FLAG_HT;
779 if (rxd->rate & MWL8K_8366_AP_RATE_INFO_40MHZ)
780 status->flag |= RX_FLAG_40MHZ;
781 status->rate_idx = MWL8K_8366_AP_RATE_INFO_RATEID(rxd->rate);
785 for (i = 0; i < ARRAY_SIZE(mwl8k_rates_24); i++) {
786 if (mwl8k_rates_24[i].hw_value == rxd->rate) {
787 status->rate_idx = i;
793 if (rxd->channel > 14) {
794 status->band = IEEE80211_BAND_5GHZ;
795 if (!(status->flag & RX_FLAG_HT))
796 status->rate_idx -= 5;
798 status->band = IEEE80211_BAND_2GHZ;
800 status->freq = ieee80211_channel_to_frequency(rxd->channel);
802 *qos = rxd->qos_control;
804 return le16_to_cpu(rxd->pkt_len);
807 static struct rxd_ops rxd_8366_ap_ops = {
808 .rxd_size = sizeof(struct mwl8k_rxd_8366_ap),
809 .rxd_init = mwl8k_rxd_8366_ap_init,
810 .rxd_refill = mwl8k_rxd_8366_ap_refill,
811 .rxd_process = mwl8k_rxd_8366_ap_process,
815 * Packet reception for STA firmware.
817 struct mwl8k_rxd_sta {
821 __le32 pkt_phys_addr;
822 __le32 next_rxd_phys_addr;
834 #define MWL8K_STA_RATE_INFO_SHORTPRE 0x8000
835 #define MWL8K_STA_RATE_INFO_ANTSELECT(x) (((x) >> 11) & 0x3)
836 #define MWL8K_STA_RATE_INFO_RATEID(x) (((x) >> 3) & 0x3f)
837 #define MWL8K_STA_RATE_INFO_40MHZ 0x0004
838 #define MWL8K_STA_RATE_INFO_SHORTGI 0x0002
839 #define MWL8K_STA_RATE_INFO_MCS_FORMAT 0x0001
841 #define MWL8K_STA_RX_CTRL_OWNED_BY_HOST 0x02
843 static void mwl8k_rxd_sta_init(void *_rxd, dma_addr_t next_dma_addr)
845 struct mwl8k_rxd_sta *rxd = _rxd;
847 rxd->next_rxd_phys_addr = cpu_to_le32(next_dma_addr);
848 rxd->rx_ctrl = MWL8K_STA_RX_CTRL_OWNED_BY_HOST;
851 static void mwl8k_rxd_sta_refill(void *_rxd, dma_addr_t addr, int len)
853 struct mwl8k_rxd_sta *rxd = _rxd;
855 rxd->pkt_len = cpu_to_le16(len);
856 rxd->pkt_phys_addr = cpu_to_le32(addr);
862 mwl8k_rxd_sta_process(void *_rxd, struct ieee80211_rx_status *status,
863 __le16 *qos, s8 *noise)
865 struct mwl8k_rxd_sta *rxd = _rxd;
868 if (!(rxd->rx_ctrl & MWL8K_STA_RX_CTRL_OWNED_BY_HOST))
872 rate_info = le16_to_cpu(rxd->rate_info);
874 memset(status, 0, sizeof(*status));
876 status->signal = -rxd->rssi;
877 *noise = -rxd->noise_level;
878 status->antenna = MWL8K_STA_RATE_INFO_ANTSELECT(rate_info);
879 status->rate_idx = MWL8K_STA_RATE_INFO_RATEID(rate_info);
881 if (rate_info & MWL8K_STA_RATE_INFO_SHORTPRE)
882 status->flag |= RX_FLAG_SHORTPRE;
883 if (rate_info & MWL8K_STA_RATE_INFO_40MHZ)
884 status->flag |= RX_FLAG_40MHZ;
885 if (rate_info & MWL8K_STA_RATE_INFO_SHORTGI)
886 status->flag |= RX_FLAG_SHORT_GI;
887 if (rate_info & MWL8K_STA_RATE_INFO_MCS_FORMAT)
888 status->flag |= RX_FLAG_HT;
890 if (rxd->channel > 14) {
891 status->band = IEEE80211_BAND_5GHZ;
892 if (!(status->flag & RX_FLAG_HT))
893 status->rate_idx -= 5;
895 status->band = IEEE80211_BAND_2GHZ;
897 status->freq = ieee80211_channel_to_frequency(rxd->channel);
899 *qos = rxd->qos_control;
901 return le16_to_cpu(rxd->pkt_len);
904 static struct rxd_ops rxd_sta_ops = {
905 .rxd_size = sizeof(struct mwl8k_rxd_sta),
906 .rxd_init = mwl8k_rxd_sta_init,
907 .rxd_refill = mwl8k_rxd_sta_refill,
908 .rxd_process = mwl8k_rxd_sta_process,
912 #define MWL8K_RX_DESCS 256
913 #define MWL8K_RX_MAXSZ 3800
915 static int mwl8k_rxq_init(struct ieee80211_hw *hw, int index)
917 struct mwl8k_priv *priv = hw->priv;
918 struct mwl8k_rx_queue *rxq = priv->rxq + index;
926 size = MWL8K_RX_DESCS * priv->rxd_ops->rxd_size;
928 rxq->rxd = pci_alloc_consistent(priv->pdev, size, &rxq->rxd_dma);
929 if (rxq->rxd == NULL) {
930 wiphy_err(hw->wiphy, "failed to alloc RX descriptors\n");
933 memset(rxq->rxd, 0, size);
935 rxq->buf = kmalloc(MWL8K_RX_DESCS * sizeof(*rxq->buf), GFP_KERNEL);
936 if (rxq->buf == NULL) {
937 wiphy_err(hw->wiphy, "failed to alloc RX skbuff list\n");
938 pci_free_consistent(priv->pdev, size, rxq->rxd, rxq->rxd_dma);
941 memset(rxq->buf, 0, MWL8K_RX_DESCS * sizeof(*rxq->buf));
943 for (i = 0; i < MWL8K_RX_DESCS; i++) {
947 dma_addr_t next_dma_addr;
949 desc_size = priv->rxd_ops->rxd_size;
950 rxd = rxq->rxd + (i * priv->rxd_ops->rxd_size);
953 if (nexti == MWL8K_RX_DESCS)
955 next_dma_addr = rxq->rxd_dma + (nexti * desc_size);
957 priv->rxd_ops->rxd_init(rxd, next_dma_addr);
963 static int rxq_refill(struct ieee80211_hw *hw, int index, int limit)
965 struct mwl8k_priv *priv = hw->priv;
966 struct mwl8k_rx_queue *rxq = priv->rxq + index;
970 while (rxq->rxd_count < MWL8K_RX_DESCS && limit--) {
976 skb = dev_alloc_skb(MWL8K_RX_MAXSZ);
980 addr = pci_map_single(priv->pdev, skb->data,
981 MWL8K_RX_MAXSZ, DMA_FROM_DEVICE);
985 if (rxq->tail == MWL8K_RX_DESCS)
987 rxq->buf[rx].skb = skb;
988 dma_unmap_addr_set(&rxq->buf[rx], dma, addr);
990 rxd = rxq->rxd + (rx * priv->rxd_ops->rxd_size);
991 priv->rxd_ops->rxd_refill(rxd, addr, MWL8K_RX_MAXSZ);
999 /* Must be called only when the card's reception is completely halted */
1000 static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index)
1002 struct mwl8k_priv *priv = hw->priv;
1003 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1006 for (i = 0; i < MWL8K_RX_DESCS; i++) {
1007 if (rxq->buf[i].skb != NULL) {
1008 pci_unmap_single(priv->pdev,
1009 dma_unmap_addr(&rxq->buf[i], dma),
1010 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1011 dma_unmap_addr_set(&rxq->buf[i], dma, 0);
1013 kfree_skb(rxq->buf[i].skb);
1014 rxq->buf[i].skb = NULL;
1021 pci_free_consistent(priv->pdev,
1022 MWL8K_RX_DESCS * priv->rxd_ops->rxd_size,
1023 rxq->rxd, rxq->rxd_dma);
1029 * Scan a list of BSSIDs to process for finalize join.
1030 * Allows for extension to process multiple BSSIDs.
1033 mwl8k_capture_bssid(struct mwl8k_priv *priv, struct ieee80211_hdr *wh)
1035 return priv->capture_beacon &&
1036 ieee80211_is_beacon(wh->frame_control) &&
1037 !compare_ether_addr(wh->addr3, priv->capture_bssid);
1040 static inline void mwl8k_save_beacon(struct ieee80211_hw *hw,
1041 struct sk_buff *skb)
1043 struct mwl8k_priv *priv = hw->priv;
1045 priv->capture_beacon = false;
1046 memset(priv->capture_bssid, 0, ETH_ALEN);
1049 * Use GFP_ATOMIC as rxq_process is called from
1050 * the primary interrupt handler, memory allocation call
1053 priv->beacon_skb = skb_copy(skb, GFP_ATOMIC);
1054 if (priv->beacon_skb != NULL)
1055 ieee80211_queue_work(hw, &priv->finalize_join_worker);
1058 static int rxq_process(struct ieee80211_hw *hw, int index, int limit)
1060 struct mwl8k_priv *priv = hw->priv;
1061 struct mwl8k_rx_queue *rxq = priv->rxq + index;
1065 while (rxq->rxd_count && limit--) {
1066 struct sk_buff *skb;
1069 struct ieee80211_rx_status status;
1072 skb = rxq->buf[rxq->head].skb;
1076 rxd = rxq->rxd + (rxq->head * priv->rxd_ops->rxd_size);
1078 pkt_len = priv->rxd_ops->rxd_process(rxd, &status, &qos,
1083 rxq->buf[rxq->head].skb = NULL;
1085 pci_unmap_single(priv->pdev,
1086 dma_unmap_addr(&rxq->buf[rxq->head], dma),
1087 MWL8K_RX_MAXSZ, PCI_DMA_FROMDEVICE);
1088 dma_unmap_addr_set(&rxq->buf[rxq->head], dma, 0);
1091 if (rxq->head == MWL8K_RX_DESCS)
1096 skb_put(skb, pkt_len);
1097 mwl8k_remove_dma_header(skb, qos);
1100 * Check for a pending join operation. Save a
1101 * copy of the beacon and schedule a tasklet to
1102 * send a FINALIZE_JOIN command to the firmware.
1104 if (mwl8k_capture_bssid(priv, (void *)skb->data))
1105 mwl8k_save_beacon(hw, skb);
1107 memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
1108 ieee80211_rx_irqsafe(hw, skb);
1118 * Packet transmission.
1121 #define MWL8K_TXD_STATUS_OK 0x00000001
1122 #define MWL8K_TXD_STATUS_OK_RETRY 0x00000002
1123 #define MWL8K_TXD_STATUS_OK_MORE_RETRY 0x00000004
1124 #define MWL8K_TXD_STATUS_MULTICAST_TX 0x00000008
1125 #define MWL8K_TXD_STATUS_FW_OWNED 0x80000000
1127 #define MWL8K_QOS_QLEN_UNSPEC 0xff00
1128 #define MWL8K_QOS_ACK_POLICY_MASK 0x0060
1129 #define MWL8K_QOS_ACK_POLICY_NORMAL 0x0000
1130 #define MWL8K_QOS_ACK_POLICY_BLOCKACK 0x0060
1131 #define MWL8K_QOS_EOSP 0x0010
1133 struct mwl8k_tx_desc {
1138 __le32 pkt_phys_addr;
1140 __u8 dest_MAC_addr[ETH_ALEN];
1141 __le32 next_txd_phys_addr;
1148 #define MWL8K_TX_DESCS 128
1150 static int mwl8k_txq_init(struct ieee80211_hw *hw, int index)
1152 struct mwl8k_priv *priv = hw->priv;
1153 struct mwl8k_tx_queue *txq = priv->txq + index;
1161 size = MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc);
1163 txq->txd = pci_alloc_consistent(priv->pdev, size, &txq->txd_dma);
1164 if (txq->txd == NULL) {
1165 wiphy_err(hw->wiphy, "failed to alloc TX descriptors\n");
1168 memset(txq->txd, 0, size);
1170 txq->skb = kmalloc(MWL8K_TX_DESCS * sizeof(*txq->skb), GFP_KERNEL);
1171 if (txq->skb == NULL) {
1172 wiphy_err(hw->wiphy, "failed to alloc TX skbuff list\n");
1173 pci_free_consistent(priv->pdev, size, txq->txd, txq->txd_dma);
1176 memset(txq->skb, 0, MWL8K_TX_DESCS * sizeof(*txq->skb));
1178 for (i = 0; i < MWL8K_TX_DESCS; i++) {
1179 struct mwl8k_tx_desc *tx_desc;
1182 tx_desc = txq->txd + i;
1183 nexti = (i + 1) % MWL8K_TX_DESCS;
1185 tx_desc->status = 0;
1186 tx_desc->next_txd_phys_addr =
1187 cpu_to_le32(txq->txd_dma + nexti * sizeof(*tx_desc));
1193 static inline void mwl8k_tx_start(struct mwl8k_priv *priv)
1195 iowrite32(MWL8K_H2A_INT_PPA_READY,
1196 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1197 iowrite32(MWL8K_H2A_INT_DUMMY,
1198 priv->regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1199 ioread32(priv->regs + MWL8K_HIU_INT_CODE);
1202 static void mwl8k_dump_tx_rings(struct ieee80211_hw *hw)
1204 struct mwl8k_priv *priv = hw->priv;
1207 for (i = 0; i < MWL8K_TX_QUEUES; i++) {
1208 struct mwl8k_tx_queue *txq = priv->txq + i;
1214 for (desc = 0; desc < MWL8K_TX_DESCS; desc++) {
1215 struct mwl8k_tx_desc *tx_desc = txq->txd + desc;
1218 status = le32_to_cpu(tx_desc->status);
1219 if (status & MWL8K_TXD_STATUS_FW_OWNED)
1224 if (tx_desc->pkt_len == 0)
1228 wiphy_err(hw->wiphy,
1229 "txq[%d] len=%d head=%d tail=%d "
1230 "fw_owned=%d drv_owned=%d unused=%d\n",
1232 txq->len, txq->head, txq->tail,
1233 fw_owned, drv_owned, unused);
1238 * Must be called with priv->fw_mutex held and tx queues stopped.
1240 #define MWL8K_TX_WAIT_TIMEOUT_MS 5000
1242 static int mwl8k_tx_wait_empty(struct ieee80211_hw *hw)
1244 struct mwl8k_priv *priv = hw->priv;
1245 DECLARE_COMPLETION_ONSTACK(tx_wait);
1252 * The TX queues are stopped at this point, so this test
1253 * doesn't need to take ->tx_lock.
1255 if (!priv->pending_tx_pkts)
1261 spin_lock_bh(&priv->tx_lock);
1262 priv->tx_wait = &tx_wait;
1265 unsigned long timeout;
1267 oldcount = priv->pending_tx_pkts;
1269 spin_unlock_bh(&priv->tx_lock);
1270 timeout = wait_for_completion_timeout(&tx_wait,
1271 msecs_to_jiffies(MWL8K_TX_WAIT_TIMEOUT_MS));
1272 spin_lock_bh(&priv->tx_lock);
1275 WARN_ON(priv->pending_tx_pkts);
1277 wiphy_notice(hw->wiphy, "tx rings drained\n");
1282 if (priv->pending_tx_pkts < oldcount) {
1283 wiphy_notice(hw->wiphy,
1284 "waiting for tx rings to drain (%d -> %d pkts)\n",
1285 oldcount, priv->pending_tx_pkts);
1290 priv->tx_wait = NULL;
1292 wiphy_err(hw->wiphy, "tx rings stuck for %d ms\n",
1293 MWL8K_TX_WAIT_TIMEOUT_MS);
1294 mwl8k_dump_tx_rings(hw);
1298 spin_unlock_bh(&priv->tx_lock);
1303 #define MWL8K_TXD_SUCCESS(status) \
1304 ((status) & (MWL8K_TXD_STATUS_OK | \
1305 MWL8K_TXD_STATUS_OK_RETRY | \
1306 MWL8K_TXD_STATUS_OK_MORE_RETRY))
1309 mwl8k_txq_reclaim(struct ieee80211_hw *hw, int index, int limit, int force)
1311 struct mwl8k_priv *priv = hw->priv;
1312 struct mwl8k_tx_queue *txq = priv->txq + index;
1316 while (txq->len > 0 && limit--) {
1318 struct mwl8k_tx_desc *tx_desc;
1321 struct sk_buff *skb;
1322 struct ieee80211_tx_info *info;
1326 tx_desc = txq->txd + tx;
1328 status = le32_to_cpu(tx_desc->status);
1330 if (status & MWL8K_TXD_STATUS_FW_OWNED) {
1334 ~cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED);
1337 txq->head = (tx + 1) % MWL8K_TX_DESCS;
1338 BUG_ON(txq->len == 0);
1340 priv->pending_tx_pkts--;
1342 addr = le32_to_cpu(tx_desc->pkt_phys_addr);
1343 size = le16_to_cpu(tx_desc->pkt_len);
1345 txq->skb[tx] = NULL;
1347 BUG_ON(skb == NULL);
1348 pci_unmap_single(priv->pdev, addr, size, PCI_DMA_TODEVICE);
1350 mwl8k_remove_dma_header(skb, tx_desc->qos_control);
1352 /* Mark descriptor as unused */
1353 tx_desc->pkt_phys_addr = 0;
1354 tx_desc->pkt_len = 0;
1356 info = IEEE80211_SKB_CB(skb);
1357 ieee80211_tx_info_clear_status(info);
1358 if (MWL8K_TXD_SUCCESS(status))
1359 info->flags |= IEEE80211_TX_STAT_ACK;
1361 ieee80211_tx_status_irqsafe(hw, skb);
1366 if (processed && priv->radio_on && !mutex_is_locked(&priv->fw_mutex))
1367 ieee80211_wake_queue(hw, index);
1372 /* must be called only when the card's transmit is completely halted */
1373 static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index)
1375 struct mwl8k_priv *priv = hw->priv;
1376 struct mwl8k_tx_queue *txq = priv->txq + index;
1378 mwl8k_txq_reclaim(hw, index, INT_MAX, 1);
1383 pci_free_consistent(priv->pdev,
1384 MWL8K_TX_DESCS * sizeof(struct mwl8k_tx_desc),
1385 txq->txd, txq->txd_dma);
1390 mwl8k_txq_xmit(struct ieee80211_hw *hw, int index, struct sk_buff *skb)
1392 struct mwl8k_priv *priv = hw->priv;
1393 struct ieee80211_tx_info *tx_info;
1394 struct mwl8k_vif *mwl8k_vif;
1395 struct ieee80211_hdr *wh;
1396 struct mwl8k_tx_queue *txq;
1397 struct mwl8k_tx_desc *tx;
1403 wh = (struct ieee80211_hdr *)skb->data;
1404 if (ieee80211_is_data_qos(wh->frame_control))
1405 qos = le16_to_cpu(*((__le16 *)ieee80211_get_qos_ctl(wh)));
1409 mwl8k_add_dma_header(skb);
1410 wh = &((struct mwl8k_dma_data *)skb->data)->wh;
1412 tx_info = IEEE80211_SKB_CB(skb);
1413 mwl8k_vif = MWL8K_VIF(tx_info->control.vif);
1415 if (tx_info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
1416 wh->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
1417 wh->seq_ctrl |= cpu_to_le16(mwl8k_vif->seqno);
1418 mwl8k_vif->seqno += 0x10;
1421 /* Setup firmware control bit fields for each frame type. */
1424 if (ieee80211_is_mgmt(wh->frame_control) ||
1425 ieee80211_is_ctl(wh->frame_control)) {
1427 qos |= MWL8K_QOS_QLEN_UNSPEC | MWL8K_QOS_EOSP;
1428 } else if (ieee80211_is_data(wh->frame_control)) {
1430 if (is_multicast_ether_addr(wh->addr1))
1431 txstatus |= MWL8K_TXD_STATUS_MULTICAST_TX;
1433 qos &= ~MWL8K_QOS_ACK_POLICY_MASK;
1434 if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
1435 qos |= MWL8K_QOS_ACK_POLICY_BLOCKACK;
1437 qos |= MWL8K_QOS_ACK_POLICY_NORMAL;
1440 dma = pci_map_single(priv->pdev, skb->data,
1441 skb->len, PCI_DMA_TODEVICE);
1443 if (pci_dma_mapping_error(priv->pdev, dma)) {
1444 wiphy_debug(hw->wiphy,
1445 "failed to dma map skb, dropping TX frame.\n");
1447 return NETDEV_TX_OK;
1450 spin_lock_bh(&priv->tx_lock);
1452 txq = priv->txq + index;
1454 BUG_ON(txq->skb[txq->tail] != NULL);
1455 txq->skb[txq->tail] = skb;
1457 tx = txq->txd + txq->tail;
1458 tx->data_rate = txdatarate;
1459 tx->tx_priority = index;
1460 tx->qos_control = cpu_to_le16(qos);
1461 tx->pkt_phys_addr = cpu_to_le32(dma);
1462 tx->pkt_len = cpu_to_le16(skb->len);
1464 if (!priv->ap_fw && tx_info->control.sta != NULL)
1465 tx->peer_id = MWL8K_STA(tx_info->control.sta)->peer_id;
1469 tx->status = cpu_to_le32(MWL8K_TXD_STATUS_FW_OWNED | txstatus);
1472 priv->pending_tx_pkts++;
1475 if (txq->tail == MWL8K_TX_DESCS)
1478 if (txq->head == txq->tail)
1479 ieee80211_stop_queue(hw, index);
1481 mwl8k_tx_start(priv);
1483 spin_unlock_bh(&priv->tx_lock);
1485 return NETDEV_TX_OK;
1492 * We have the following requirements for issuing firmware commands:
1493 * - Some commands require that the packet transmit path is idle when
1494 * the command is issued. (For simplicity, we'll just quiesce the
1495 * transmit path for every command.)
1496 * - There are certain sequences of commands that need to be issued to
1497 * the hardware sequentially, with no other intervening commands.
1499 * This leads to an implementation of a "firmware lock" as a mutex that
1500 * can be taken recursively, and which is taken by both the low-level
1501 * command submission function (mwl8k_post_cmd) as well as any users of
1502 * that function that require issuing of an atomic sequence of commands,
1503 * and quiesces the transmit path whenever it's taken.
1505 static int mwl8k_fw_lock(struct ieee80211_hw *hw)
1507 struct mwl8k_priv *priv = hw->priv;
1509 if (priv->fw_mutex_owner != current) {
1512 mutex_lock(&priv->fw_mutex);
1513 ieee80211_stop_queues(hw);
1515 rc = mwl8k_tx_wait_empty(hw);
1517 ieee80211_wake_queues(hw);
1518 mutex_unlock(&priv->fw_mutex);
1523 priv->fw_mutex_owner = current;
1526 priv->fw_mutex_depth++;
1531 static void mwl8k_fw_unlock(struct ieee80211_hw *hw)
1533 struct mwl8k_priv *priv = hw->priv;
1535 if (!--priv->fw_mutex_depth) {
1536 ieee80211_wake_queues(hw);
1537 priv->fw_mutex_owner = NULL;
1538 mutex_unlock(&priv->fw_mutex);
1544 * Command processing.
1547 /* Timeout firmware commands after 10s */
1548 #define MWL8K_CMD_TIMEOUT_MS 10000
1550 static int mwl8k_post_cmd(struct ieee80211_hw *hw, struct mwl8k_cmd_pkt *cmd)
1552 DECLARE_COMPLETION_ONSTACK(cmd_wait);
1553 struct mwl8k_priv *priv = hw->priv;
1554 void __iomem *regs = priv->regs;
1555 dma_addr_t dma_addr;
1556 unsigned int dma_size;
1558 unsigned long timeout = 0;
1561 cmd->result = (__force __le16) 0xffff;
1562 dma_size = le16_to_cpu(cmd->length);
1563 dma_addr = pci_map_single(priv->pdev, cmd, dma_size,
1564 PCI_DMA_BIDIRECTIONAL);
1565 if (pci_dma_mapping_error(priv->pdev, dma_addr))
1568 rc = mwl8k_fw_lock(hw);
1570 pci_unmap_single(priv->pdev, dma_addr, dma_size,
1571 PCI_DMA_BIDIRECTIONAL);
1575 priv->hostcmd_wait = &cmd_wait;
1576 iowrite32(dma_addr, regs + MWL8K_HIU_GEN_PTR);
1577 iowrite32(MWL8K_H2A_INT_DOORBELL,
1578 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1579 iowrite32(MWL8K_H2A_INT_DUMMY,
1580 regs + MWL8K_HIU_H2A_INTERRUPT_EVENTS);
1582 timeout = wait_for_completion_timeout(&cmd_wait,
1583 msecs_to_jiffies(MWL8K_CMD_TIMEOUT_MS));
1585 priv->hostcmd_wait = NULL;
1587 mwl8k_fw_unlock(hw);
1589 pci_unmap_single(priv->pdev, dma_addr, dma_size,
1590 PCI_DMA_BIDIRECTIONAL);
1593 wiphy_err(hw->wiphy, "Command %s timeout after %u ms\n",
1594 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
1595 MWL8K_CMD_TIMEOUT_MS);
1600 ms = MWL8K_CMD_TIMEOUT_MS - jiffies_to_msecs(timeout);
1602 rc = cmd->result ? -EINVAL : 0;
1604 wiphy_err(hw->wiphy, "Command %s error 0x%x\n",
1605 mwl8k_cmd_name(cmd->code, buf, sizeof(buf)),
1606 le16_to_cpu(cmd->result));
1608 wiphy_notice(hw->wiphy, "Command %s took %d ms\n",
1609 mwl8k_cmd_name(cmd->code,
1617 static int mwl8k_post_pervif_cmd(struct ieee80211_hw *hw,
1618 struct ieee80211_vif *vif,
1619 struct mwl8k_cmd_pkt *cmd)
1622 cmd->macid = MWL8K_VIF(vif)->macid;
1623 return mwl8k_post_cmd(hw, cmd);
1627 * Setup code shared between STA and AP firmware images.
1629 static void mwl8k_setup_2ghz_band(struct ieee80211_hw *hw)
1631 struct mwl8k_priv *priv = hw->priv;
1633 BUILD_BUG_ON(sizeof(priv->channels_24) != sizeof(mwl8k_channels_24));
1634 memcpy(priv->channels_24, mwl8k_channels_24, sizeof(mwl8k_channels_24));
1636 BUILD_BUG_ON(sizeof(priv->rates_24) != sizeof(mwl8k_rates_24));
1637 memcpy(priv->rates_24, mwl8k_rates_24, sizeof(mwl8k_rates_24));
1639 priv->band_24.band = IEEE80211_BAND_2GHZ;
1640 priv->band_24.channels = priv->channels_24;
1641 priv->band_24.n_channels = ARRAY_SIZE(mwl8k_channels_24);
1642 priv->band_24.bitrates = priv->rates_24;
1643 priv->band_24.n_bitrates = ARRAY_SIZE(mwl8k_rates_24);
1645 hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &priv->band_24;
1648 static void mwl8k_setup_5ghz_band(struct ieee80211_hw *hw)
1650 struct mwl8k_priv *priv = hw->priv;
1652 BUILD_BUG_ON(sizeof(priv->channels_50) != sizeof(mwl8k_channels_50));
1653 memcpy(priv->channels_50, mwl8k_channels_50, sizeof(mwl8k_channels_50));
1655 BUILD_BUG_ON(sizeof(priv->rates_50) != sizeof(mwl8k_rates_50));
1656 memcpy(priv->rates_50, mwl8k_rates_50, sizeof(mwl8k_rates_50));
1658 priv->band_50.band = IEEE80211_BAND_5GHZ;
1659 priv->band_50.channels = priv->channels_50;
1660 priv->band_50.n_channels = ARRAY_SIZE(mwl8k_channels_50);
1661 priv->band_50.bitrates = priv->rates_50;
1662 priv->band_50.n_bitrates = ARRAY_SIZE(mwl8k_rates_50);
1664 hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &priv->band_50;
1668 * CMD_GET_HW_SPEC (STA version).
1670 struct mwl8k_cmd_get_hw_spec_sta {
1671 struct mwl8k_cmd_pkt header;
1673 __u8 host_interface;
1675 __u8 perm_addr[ETH_ALEN];
1680 __u8 mcs_bitmap[16];
1681 __le32 rx_queue_ptr;
1682 __le32 num_tx_queues;
1683 __le32 tx_queue_ptrs[MWL8K_TX_QUEUES];
1685 __le32 num_tx_desc_per_queue;
1689 #define MWL8K_CAP_MAX_AMSDU 0x20000000
1690 #define MWL8K_CAP_GREENFIELD 0x08000000
1691 #define MWL8K_CAP_AMPDU 0x04000000
1692 #define MWL8K_CAP_RX_STBC 0x01000000
1693 #define MWL8K_CAP_TX_STBC 0x00800000
1694 #define MWL8K_CAP_SHORTGI_40MHZ 0x00400000
1695 #define MWL8K_CAP_SHORTGI_20MHZ 0x00200000
1696 #define MWL8K_CAP_RX_ANTENNA_MASK 0x000e0000
1697 #define MWL8K_CAP_TX_ANTENNA_MASK 0x0001c000
1698 #define MWL8K_CAP_DELAY_BA 0x00003000
1699 #define MWL8K_CAP_MIMO 0x00000200
1700 #define MWL8K_CAP_40MHZ 0x00000100
1701 #define MWL8K_CAP_BAND_MASK 0x00000007
1702 #define MWL8K_CAP_5GHZ 0x00000004
1703 #define MWL8K_CAP_2GHZ4 0x00000001
1706 mwl8k_set_ht_caps(struct ieee80211_hw *hw,
1707 struct ieee80211_supported_band *band, u32 cap)
1712 band->ht_cap.ht_supported = 1;
1714 if (cap & MWL8K_CAP_MAX_AMSDU)
1715 band->ht_cap.cap |= IEEE80211_HT_CAP_MAX_AMSDU;
1716 if (cap & MWL8K_CAP_GREENFIELD)
1717 band->ht_cap.cap |= IEEE80211_HT_CAP_GRN_FLD;
1718 if (cap & MWL8K_CAP_AMPDU) {
1719 hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
1720 band->ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
1721 band->ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE;
1723 if (cap & MWL8K_CAP_RX_STBC)
1724 band->ht_cap.cap |= IEEE80211_HT_CAP_RX_STBC;
1725 if (cap & MWL8K_CAP_TX_STBC)
1726 band->ht_cap.cap |= IEEE80211_HT_CAP_TX_STBC;
1727 if (cap & MWL8K_CAP_SHORTGI_40MHZ)
1728 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_40;
1729 if (cap & MWL8K_CAP_SHORTGI_20MHZ)
1730 band->ht_cap.cap |= IEEE80211_HT_CAP_SGI_20;
1731 if (cap & MWL8K_CAP_DELAY_BA)
1732 band->ht_cap.cap |= IEEE80211_HT_CAP_DELAY_BA;
1733 if (cap & MWL8K_CAP_40MHZ)
1734 band->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
1736 rx_streams = hweight32(cap & MWL8K_CAP_RX_ANTENNA_MASK);
1737 tx_streams = hweight32(cap & MWL8K_CAP_TX_ANTENNA_MASK);
1739 band->ht_cap.mcs.rx_mask[0] = 0xff;
1740 if (rx_streams >= 2)
1741 band->ht_cap.mcs.rx_mask[1] = 0xff;
1742 if (rx_streams >= 3)
1743 band->ht_cap.mcs.rx_mask[2] = 0xff;
1744 band->ht_cap.mcs.rx_mask[4] = 0x01;
1745 band->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
1747 if (rx_streams != tx_streams) {
1748 band->ht_cap.mcs.tx_params |= IEEE80211_HT_MCS_TX_RX_DIFF;
1749 band->ht_cap.mcs.tx_params |= (tx_streams - 1) <<
1750 IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT;
1755 mwl8k_set_caps(struct ieee80211_hw *hw, u32 caps)
1757 struct mwl8k_priv *priv = hw->priv;
1759 if ((caps & MWL8K_CAP_2GHZ4) || !(caps & MWL8K_CAP_BAND_MASK)) {
1760 mwl8k_setup_2ghz_band(hw);
1761 if (caps & MWL8K_CAP_MIMO)
1762 mwl8k_set_ht_caps(hw, &priv->band_24, caps);
1765 if (caps & MWL8K_CAP_5GHZ) {
1766 mwl8k_setup_5ghz_band(hw);
1767 if (caps & MWL8K_CAP_MIMO)
1768 mwl8k_set_ht_caps(hw, &priv->band_50, caps);
1772 static int mwl8k_cmd_get_hw_spec_sta(struct ieee80211_hw *hw)
1774 struct mwl8k_priv *priv = hw->priv;
1775 struct mwl8k_cmd_get_hw_spec_sta *cmd;
1779 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1783 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
1784 cmd->header.length = cpu_to_le16(sizeof(*cmd));
1786 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
1787 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
1788 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
1789 cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES);
1790 for (i = 0; i < MWL8K_TX_QUEUES; i++)
1791 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma);
1792 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
1793 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
1795 rc = mwl8k_post_cmd(hw, &cmd->header);
1798 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
1799 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
1800 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
1801 priv->hw_rev = cmd->hw_rev;
1802 mwl8k_set_caps(hw, le32_to_cpu(cmd->caps));
1803 priv->ap_macids_supported = 0x00000000;
1804 priv->sta_macids_supported = 0x00000001;
1812 * CMD_GET_HW_SPEC (AP version).
1814 struct mwl8k_cmd_get_hw_spec_ap {
1815 struct mwl8k_cmd_pkt header;
1817 __u8 host_interface;
1820 __u8 perm_addr[ETH_ALEN];
1831 __le32 fw_api_version;
1834 static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw)
1836 struct mwl8k_priv *priv = hw->priv;
1837 struct mwl8k_cmd_get_hw_spec_ap *cmd;
1841 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1845 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_HW_SPEC);
1846 cmd->header.length = cpu_to_le16(sizeof(*cmd));
1848 memset(cmd->perm_addr, 0xff, sizeof(cmd->perm_addr));
1849 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
1851 rc = mwl8k_post_cmd(hw, &cmd->header);
1856 api_version = le32_to_cpu(cmd->fw_api_version);
1857 if (priv->device_info->fw_api_ap != api_version) {
1858 printk(KERN_ERR "%s: Unsupported fw API version for %s."
1859 " Expected %d got %d.\n", MWL8K_NAME,
1860 priv->device_info->part_name,
1861 priv->device_info->fw_api_ap,
1866 SET_IEEE80211_PERM_ADDR(hw, cmd->perm_addr);
1867 priv->num_mcaddrs = le16_to_cpu(cmd->num_mcaddrs);
1868 priv->fw_rev = le32_to_cpu(cmd->fw_rev);
1869 priv->hw_rev = cmd->hw_rev;
1870 mwl8k_setup_2ghz_band(hw);
1871 priv->ap_macids_supported = 0x000000ff;
1872 priv->sta_macids_supported = 0x00000000;
1874 off = le32_to_cpu(cmd->wcbbase0) & 0xffff;
1875 iowrite32(priv->txq[0].txd_dma, priv->sram + off);
1877 off = le32_to_cpu(cmd->rxwrptr) & 0xffff;
1878 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
1880 off = le32_to_cpu(cmd->rxrdptr) & 0xffff;
1881 iowrite32(priv->rxq[0].rxd_dma, priv->sram + off);
1883 off = le32_to_cpu(cmd->wcbbase1) & 0xffff;
1884 iowrite32(priv->txq[1].txd_dma, priv->sram + off);
1886 off = le32_to_cpu(cmd->wcbbase2) & 0xffff;
1887 iowrite32(priv->txq[2].txd_dma, priv->sram + off);
1889 off = le32_to_cpu(cmd->wcbbase3) & 0xffff;
1890 iowrite32(priv->txq[3].txd_dma, priv->sram + off);
1901 struct mwl8k_cmd_set_hw_spec {
1902 struct mwl8k_cmd_pkt header;
1904 __u8 host_interface;
1906 __u8 perm_addr[ETH_ALEN];
1911 __le32 rx_queue_ptr;
1912 __le32 num_tx_queues;
1913 __le32 tx_queue_ptrs[MWL8K_TX_QUEUES];
1915 __le32 num_tx_desc_per_queue;
1919 #define MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT 0x00000080
1920 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP 0x00000020
1921 #define MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON 0x00000010
1923 static int mwl8k_cmd_set_hw_spec(struct ieee80211_hw *hw)
1925 struct mwl8k_priv *priv = hw->priv;
1926 struct mwl8k_cmd_set_hw_spec *cmd;
1930 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
1934 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_HW_SPEC);
1935 cmd->header.length = cpu_to_le16(sizeof(*cmd));
1937 cmd->ps_cookie = cpu_to_le32(priv->cookie_dma);
1938 cmd->rx_queue_ptr = cpu_to_le32(priv->rxq[0].rxd_dma);
1939 cmd->num_tx_queues = cpu_to_le32(MWL8K_TX_QUEUES);
1940 for (i = 0; i < MWL8K_TX_QUEUES; i++)
1941 cmd->tx_queue_ptrs[i] = cpu_to_le32(priv->txq[i].txd_dma);
1942 cmd->flags = cpu_to_le32(MWL8K_SET_HW_SPEC_FLAG_HOST_DECR_MGMT |
1943 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_PROBERESP |
1944 MWL8K_SET_HW_SPEC_FLAG_HOSTFORM_BEACON);
1945 cmd->num_tx_desc_per_queue = cpu_to_le32(MWL8K_TX_DESCS);
1946 cmd->total_rxd = cpu_to_le32(MWL8K_RX_DESCS);
1948 rc = mwl8k_post_cmd(hw, &cmd->header);
1955 * CMD_MAC_MULTICAST_ADR.
1957 struct mwl8k_cmd_mac_multicast_adr {
1958 struct mwl8k_cmd_pkt header;
1961 __u8 addr[0][ETH_ALEN];
1964 #define MWL8K_ENABLE_RX_DIRECTED 0x0001
1965 #define MWL8K_ENABLE_RX_MULTICAST 0x0002
1966 #define MWL8K_ENABLE_RX_ALL_MULTICAST 0x0004
1967 #define MWL8K_ENABLE_RX_BROADCAST 0x0008
1969 static struct mwl8k_cmd_pkt *
1970 __mwl8k_cmd_mac_multicast_adr(struct ieee80211_hw *hw, int allmulti,
1971 struct netdev_hw_addr_list *mc_list)
1973 struct mwl8k_priv *priv = hw->priv;
1974 struct mwl8k_cmd_mac_multicast_adr *cmd;
1979 mc_count = netdev_hw_addr_list_count(mc_list);
1981 if (allmulti || mc_count > priv->num_mcaddrs) {
1986 size = sizeof(*cmd) + mc_count * ETH_ALEN;
1988 cmd = kzalloc(size, GFP_ATOMIC);
1992 cmd->header.code = cpu_to_le16(MWL8K_CMD_MAC_MULTICAST_ADR);
1993 cmd->header.length = cpu_to_le16(size);
1994 cmd->action = cpu_to_le16(MWL8K_ENABLE_RX_DIRECTED |
1995 MWL8K_ENABLE_RX_BROADCAST);
1998 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_ALL_MULTICAST);
1999 } else if (mc_count) {
2000 struct netdev_hw_addr *ha;
2003 cmd->action |= cpu_to_le16(MWL8K_ENABLE_RX_MULTICAST);
2004 cmd->numaddr = cpu_to_le16(mc_count);
2005 netdev_hw_addr_list_for_each(ha, mc_list) {
2006 memcpy(cmd->addr[i], ha->addr, ETH_ALEN);
2010 return &cmd->header;
2016 struct mwl8k_cmd_get_stat {
2017 struct mwl8k_cmd_pkt header;
2021 #define MWL8K_STAT_ACK_FAILURE 9
2022 #define MWL8K_STAT_RTS_FAILURE 12
2023 #define MWL8K_STAT_FCS_ERROR 24
2024 #define MWL8K_STAT_RTS_SUCCESS 11
2026 static int mwl8k_cmd_get_stat(struct ieee80211_hw *hw,
2027 struct ieee80211_low_level_stats *stats)
2029 struct mwl8k_cmd_get_stat *cmd;
2032 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2036 cmd->header.code = cpu_to_le16(MWL8K_CMD_GET_STAT);
2037 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2039 rc = mwl8k_post_cmd(hw, &cmd->header);
2041 stats->dot11ACKFailureCount =
2042 le32_to_cpu(cmd->stats[MWL8K_STAT_ACK_FAILURE]);
2043 stats->dot11RTSFailureCount =
2044 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_FAILURE]);
2045 stats->dot11FCSErrorCount =
2046 le32_to_cpu(cmd->stats[MWL8K_STAT_FCS_ERROR]);
2047 stats->dot11RTSSuccessCount =
2048 le32_to_cpu(cmd->stats[MWL8K_STAT_RTS_SUCCESS]);
2056 * CMD_RADIO_CONTROL.
2058 struct mwl8k_cmd_radio_control {
2059 struct mwl8k_cmd_pkt header;
2066 mwl8k_cmd_radio_control(struct ieee80211_hw *hw, bool enable, bool force)
2068 struct mwl8k_priv *priv = hw->priv;
2069 struct mwl8k_cmd_radio_control *cmd;
2072 if (enable == priv->radio_on && !force)
2075 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2079 cmd->header.code = cpu_to_le16(MWL8K_CMD_RADIO_CONTROL);
2080 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2081 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2082 cmd->control = cpu_to_le16(priv->radio_short_preamble ? 3 : 1);
2083 cmd->radio_on = cpu_to_le16(enable ? 0x0001 : 0x0000);
2085 rc = mwl8k_post_cmd(hw, &cmd->header);
2089 priv->radio_on = enable;
2094 static int mwl8k_cmd_radio_disable(struct ieee80211_hw *hw)
2096 return mwl8k_cmd_radio_control(hw, 0, 0);
2099 static int mwl8k_cmd_radio_enable(struct ieee80211_hw *hw)
2101 return mwl8k_cmd_radio_control(hw, 1, 0);
2105 mwl8k_set_radio_preamble(struct ieee80211_hw *hw, bool short_preamble)
2107 struct mwl8k_priv *priv = hw->priv;
2109 priv->radio_short_preamble = short_preamble;
2111 return mwl8k_cmd_radio_control(hw, 1, 1);
2117 #define MWL8K_RF_TX_POWER_LEVEL_TOTAL 8
2119 struct mwl8k_cmd_rf_tx_power {
2120 struct mwl8k_cmd_pkt header;
2122 __le16 support_level;
2123 __le16 current_level;
2125 __le16 power_level_list[MWL8K_RF_TX_POWER_LEVEL_TOTAL];
2128 static int mwl8k_cmd_rf_tx_power(struct ieee80211_hw *hw, int dBm)
2130 struct mwl8k_cmd_rf_tx_power *cmd;
2133 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2137 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_TX_POWER);
2138 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2139 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2140 cmd->support_level = cpu_to_le16(dBm);
2142 rc = mwl8k_post_cmd(hw, &cmd->header);
2151 #define MWL8K_TX_POWER_LEVEL_TOTAL 12
2153 struct mwl8k_cmd_tx_power {
2154 struct mwl8k_cmd_pkt header;
2160 __le16 power_level_list[MWL8K_TX_POWER_LEVEL_TOTAL];
2161 } __attribute__((packed));
2163 static int mwl8k_cmd_tx_power(struct ieee80211_hw *hw,
2164 struct ieee80211_conf *conf,
2167 struct ieee80211_channel *channel = conf->channel;
2168 struct mwl8k_cmd_tx_power *cmd;
2172 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2176 cmd->header.code = cpu_to_le16(MWL8K_CMD_TX_POWER);
2177 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2178 cmd->action = cpu_to_le16(MWL8K_CMD_SET_LIST);
2180 if (channel->band == IEEE80211_BAND_2GHZ)
2181 cmd->band = cpu_to_le16(0x1);
2182 else if (channel->band == IEEE80211_BAND_5GHZ)
2183 cmd->band = cpu_to_le16(0x4);
2185 cmd->channel = channel->hw_value;
2187 if (conf->channel_type == NL80211_CHAN_NO_HT ||
2188 conf->channel_type == NL80211_CHAN_HT20) {
2189 cmd->bw = cpu_to_le16(0x2);
2191 cmd->bw = cpu_to_le16(0x4);
2192 if (conf->channel_type == NL80211_CHAN_HT40MINUS)
2193 cmd->sub_ch = cpu_to_le16(0x3);
2194 else if (conf->channel_type == NL80211_CHAN_HT40PLUS)
2195 cmd->sub_ch = cpu_to_le16(0x1);
2198 for (i = 0; i < MWL8K_TX_POWER_LEVEL_TOTAL; i++)
2199 cmd->power_level_list[i] = cpu_to_le16(pwr);
2201 rc = mwl8k_post_cmd(hw, &cmd->header);
2210 struct mwl8k_cmd_rf_antenna {
2211 struct mwl8k_cmd_pkt header;
2216 #define MWL8K_RF_ANTENNA_RX 1
2217 #define MWL8K_RF_ANTENNA_TX 2
2220 mwl8k_cmd_rf_antenna(struct ieee80211_hw *hw, int antenna, int mask)
2222 struct mwl8k_cmd_rf_antenna *cmd;
2225 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2229 cmd->header.code = cpu_to_le16(MWL8K_CMD_RF_ANTENNA);
2230 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2231 cmd->antenna = cpu_to_le16(antenna);
2232 cmd->mode = cpu_to_le16(mask);
2234 rc = mwl8k_post_cmd(hw, &cmd->header);
2243 struct mwl8k_cmd_set_beacon {
2244 struct mwl8k_cmd_pkt header;
2249 static int mwl8k_cmd_set_beacon(struct ieee80211_hw *hw,
2250 struct ieee80211_vif *vif, u8 *beacon, int len)
2252 struct mwl8k_cmd_set_beacon *cmd;
2255 cmd = kzalloc(sizeof(*cmd) + len, GFP_KERNEL);
2259 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_BEACON);
2260 cmd->header.length = cpu_to_le16(sizeof(*cmd) + len);
2261 cmd->beacon_len = cpu_to_le16(len);
2262 memcpy(cmd->beacon, beacon, len);
2264 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
2273 struct mwl8k_cmd_set_pre_scan {
2274 struct mwl8k_cmd_pkt header;
2277 static int mwl8k_cmd_set_pre_scan(struct ieee80211_hw *hw)
2279 struct mwl8k_cmd_set_pre_scan *cmd;
2282 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2286 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_PRE_SCAN);
2287 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2289 rc = mwl8k_post_cmd(hw, &cmd->header);
2296 * CMD_SET_POST_SCAN.
2298 struct mwl8k_cmd_set_post_scan {
2299 struct mwl8k_cmd_pkt header;
2301 __u8 bssid[ETH_ALEN];
2305 mwl8k_cmd_set_post_scan(struct ieee80211_hw *hw, const __u8 *mac)
2307 struct mwl8k_cmd_set_post_scan *cmd;
2310 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2314 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_POST_SCAN);
2315 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2317 memcpy(cmd->bssid, mac, ETH_ALEN);
2319 rc = mwl8k_post_cmd(hw, &cmd->header);
2326 * CMD_SET_RF_CHANNEL.
2328 struct mwl8k_cmd_set_rf_channel {
2329 struct mwl8k_cmd_pkt header;
2331 __u8 current_channel;
2332 __le32 channel_flags;
2335 static int mwl8k_cmd_set_rf_channel(struct ieee80211_hw *hw,
2336 struct ieee80211_conf *conf)
2338 struct ieee80211_channel *channel = conf->channel;
2339 struct mwl8k_cmd_set_rf_channel *cmd;
2342 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2346 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RF_CHANNEL);
2347 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2348 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2349 cmd->current_channel = channel->hw_value;
2351 if (channel->band == IEEE80211_BAND_2GHZ)
2352 cmd->channel_flags |= cpu_to_le32(0x00000001);
2353 else if (channel->band == IEEE80211_BAND_5GHZ)
2354 cmd->channel_flags |= cpu_to_le32(0x00000004);
2356 if (conf->channel_type == NL80211_CHAN_NO_HT ||
2357 conf->channel_type == NL80211_CHAN_HT20)
2358 cmd->channel_flags |= cpu_to_le32(0x00000080);
2359 else if (conf->channel_type == NL80211_CHAN_HT40MINUS)
2360 cmd->channel_flags |= cpu_to_le32(0x000001900);
2361 else if (conf->channel_type == NL80211_CHAN_HT40PLUS)
2362 cmd->channel_flags |= cpu_to_le32(0x000000900);
2364 rc = mwl8k_post_cmd(hw, &cmd->header);
2373 #define MWL8K_FRAME_PROT_DISABLED 0x00
2374 #define MWL8K_FRAME_PROT_11G 0x07
2375 #define MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY 0x02
2376 #define MWL8K_FRAME_PROT_11N_HT_ALL 0x06
2378 struct mwl8k_cmd_update_set_aid {
2379 struct mwl8k_cmd_pkt header;
2382 /* AP's MAC address (BSSID) */
2383 __u8 bssid[ETH_ALEN];
2384 __le16 protection_mode;
2385 __u8 supp_rates[14];
2388 static void legacy_rate_mask_to_array(u8 *rates, u32 mask)
2394 * Clear nonstandard rates 4 and 13.
2398 for (i = 0, j = 0; i < 14; i++) {
2399 if (mask & (1 << i))
2400 rates[j++] = mwl8k_rates_24[i].hw_value;
2405 mwl8k_cmd_set_aid(struct ieee80211_hw *hw,
2406 struct ieee80211_vif *vif, u32 legacy_rate_mask)
2408 struct mwl8k_cmd_update_set_aid *cmd;
2412 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2416 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_AID);
2417 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2418 cmd->aid = cpu_to_le16(vif->bss_conf.aid);
2419 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
2421 if (vif->bss_conf.use_cts_prot) {
2422 prot_mode = MWL8K_FRAME_PROT_11G;
2424 switch (vif->bss_conf.ht_operation_mode &
2425 IEEE80211_HT_OP_MODE_PROTECTION) {
2426 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ:
2427 prot_mode = MWL8K_FRAME_PROT_11N_HT_40MHZ_ONLY;
2429 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED:
2430 prot_mode = MWL8K_FRAME_PROT_11N_HT_ALL;
2433 prot_mode = MWL8K_FRAME_PROT_DISABLED;
2437 cmd->protection_mode = cpu_to_le16(prot_mode);
2439 legacy_rate_mask_to_array(cmd->supp_rates, legacy_rate_mask);
2441 rc = mwl8k_post_cmd(hw, &cmd->header);
2450 struct mwl8k_cmd_set_rate {
2451 struct mwl8k_cmd_pkt header;
2452 __u8 legacy_rates[14];
2454 /* Bitmap for supported MCS codes. */
2460 mwl8k_cmd_set_rate(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
2461 u32 legacy_rate_mask, u8 *mcs_rates)
2463 struct mwl8k_cmd_set_rate *cmd;
2466 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2470 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATE);
2471 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2472 legacy_rate_mask_to_array(cmd->legacy_rates, legacy_rate_mask);
2473 memcpy(cmd->mcs_set, mcs_rates, 16);
2475 rc = mwl8k_post_cmd(hw, &cmd->header);
2482 * CMD_FINALIZE_JOIN.
2484 #define MWL8K_FJ_BEACON_MAXLEN 128
2486 struct mwl8k_cmd_finalize_join {
2487 struct mwl8k_cmd_pkt header;
2488 __le32 sleep_interval; /* Number of beacon periods to sleep */
2489 __u8 beacon_data[MWL8K_FJ_BEACON_MAXLEN];
2492 static int mwl8k_cmd_finalize_join(struct ieee80211_hw *hw, void *frame,
2493 int framelen, int dtim)
2495 struct mwl8k_cmd_finalize_join *cmd;
2496 struct ieee80211_mgmt *payload = frame;
2500 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2504 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_FINALIZE_JOIN);
2505 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2506 cmd->sleep_interval = cpu_to_le32(dtim ? dtim : 1);
2508 payload_len = framelen - ieee80211_hdrlen(payload->frame_control);
2509 if (payload_len < 0)
2511 else if (payload_len > MWL8K_FJ_BEACON_MAXLEN)
2512 payload_len = MWL8K_FJ_BEACON_MAXLEN;
2514 memcpy(cmd->beacon_data, &payload->u.beacon, payload_len);
2516 rc = mwl8k_post_cmd(hw, &cmd->header);
2523 * CMD_SET_RTS_THRESHOLD.
2525 struct mwl8k_cmd_set_rts_threshold {
2526 struct mwl8k_cmd_pkt header;
2532 mwl8k_cmd_set_rts_threshold(struct ieee80211_hw *hw, int rts_thresh)
2534 struct mwl8k_cmd_set_rts_threshold *cmd;
2537 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2541 cmd->header.code = cpu_to_le16(MWL8K_CMD_RTS_THRESHOLD);
2542 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2543 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2544 cmd->threshold = cpu_to_le16(rts_thresh);
2546 rc = mwl8k_post_cmd(hw, &cmd->header);
2555 struct mwl8k_cmd_set_slot {
2556 struct mwl8k_cmd_pkt header;
2561 static int mwl8k_cmd_set_slot(struct ieee80211_hw *hw, bool short_slot_time)
2563 struct mwl8k_cmd_set_slot *cmd;
2566 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2570 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_SLOT);
2571 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2572 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2573 cmd->short_slot = short_slot_time;
2575 rc = mwl8k_post_cmd(hw, &cmd->header);
2582 * CMD_SET_EDCA_PARAMS.
2584 struct mwl8k_cmd_set_edca_params {
2585 struct mwl8k_cmd_pkt header;
2587 /* See MWL8K_SET_EDCA_XXX below */
2590 /* TX opportunity in units of 32 us */
2595 /* Log exponent of max contention period: 0...15 */
2598 /* Log exponent of min contention period: 0...15 */
2601 /* Adaptive interframe spacing in units of 32us */
2604 /* TX queue to configure */
2608 /* Log exponent of max contention period: 0...15 */
2611 /* Log exponent of min contention period: 0...15 */
2614 /* Adaptive interframe spacing in units of 32us */
2617 /* TX queue to configure */
2623 #define MWL8K_SET_EDCA_CW 0x01
2624 #define MWL8K_SET_EDCA_TXOP 0x02
2625 #define MWL8K_SET_EDCA_AIFS 0x04
2627 #define MWL8K_SET_EDCA_ALL (MWL8K_SET_EDCA_CW | \
2628 MWL8K_SET_EDCA_TXOP | \
2629 MWL8K_SET_EDCA_AIFS)
2632 mwl8k_cmd_set_edca_params(struct ieee80211_hw *hw, __u8 qnum,
2633 __u16 cw_min, __u16 cw_max,
2634 __u8 aifs, __u16 txop)
2636 struct mwl8k_priv *priv = hw->priv;
2637 struct mwl8k_cmd_set_edca_params *cmd;
2640 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2644 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_EDCA_PARAMS);
2645 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2646 cmd->action = cpu_to_le16(MWL8K_SET_EDCA_ALL);
2647 cmd->txop = cpu_to_le16(txop);
2649 cmd->ap.log_cw_max = cpu_to_le32(ilog2(cw_max + 1));
2650 cmd->ap.log_cw_min = cpu_to_le32(ilog2(cw_min + 1));
2651 cmd->ap.aifs = aifs;
2654 cmd->sta.log_cw_max = (u8)ilog2(cw_max + 1);
2655 cmd->sta.log_cw_min = (u8)ilog2(cw_min + 1);
2656 cmd->sta.aifs = aifs;
2657 cmd->sta.txq = qnum;
2660 rc = mwl8k_post_cmd(hw, &cmd->header);
2669 struct mwl8k_cmd_set_wmm_mode {
2670 struct mwl8k_cmd_pkt header;
2674 static int mwl8k_cmd_set_wmm_mode(struct ieee80211_hw *hw, bool enable)
2676 struct mwl8k_priv *priv = hw->priv;
2677 struct mwl8k_cmd_set_wmm_mode *cmd;
2680 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2684 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_WMM_MODE);
2685 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2686 cmd->action = cpu_to_le16(!!enable);
2688 rc = mwl8k_post_cmd(hw, &cmd->header);
2692 priv->wmm_enabled = enable;
2700 struct mwl8k_cmd_mimo_config {
2701 struct mwl8k_cmd_pkt header;
2703 __u8 rx_antenna_map;
2704 __u8 tx_antenna_map;
2707 static int mwl8k_cmd_mimo_config(struct ieee80211_hw *hw, __u8 rx, __u8 tx)
2709 struct mwl8k_cmd_mimo_config *cmd;
2712 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2716 cmd->header.code = cpu_to_le16(MWL8K_CMD_MIMO_CONFIG);
2717 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2718 cmd->action = cpu_to_le32((u32)MWL8K_CMD_SET);
2719 cmd->rx_antenna_map = rx;
2720 cmd->tx_antenna_map = tx;
2722 rc = mwl8k_post_cmd(hw, &cmd->header);
2729 * CMD_USE_FIXED_RATE (STA version).
2731 struct mwl8k_cmd_use_fixed_rate_sta {
2732 struct mwl8k_cmd_pkt header;
2734 __le32 allow_rate_drop;
2738 __le32 enable_retry;
2747 #define MWL8K_USE_AUTO_RATE 0x0002
2748 #define MWL8K_UCAST_RATE 0
2750 static int mwl8k_cmd_use_fixed_rate_sta(struct ieee80211_hw *hw)
2752 struct mwl8k_cmd_use_fixed_rate_sta *cmd;
2755 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2759 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
2760 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2761 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
2762 cmd->rate_type = cpu_to_le32(MWL8K_UCAST_RATE);
2764 rc = mwl8k_post_cmd(hw, &cmd->header);
2771 * CMD_USE_FIXED_RATE (AP version).
2773 struct mwl8k_cmd_use_fixed_rate_ap {
2774 struct mwl8k_cmd_pkt header;
2776 __le32 allow_rate_drop;
2778 struct mwl8k_rate_entry_ap {
2780 __le32 enable_retry;
2785 u8 multicast_rate_type;
2790 mwl8k_cmd_use_fixed_rate_ap(struct ieee80211_hw *hw, int mcast, int mgmt)
2792 struct mwl8k_cmd_use_fixed_rate_ap *cmd;
2795 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2799 cmd->header.code = cpu_to_le16(MWL8K_CMD_USE_FIXED_RATE);
2800 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2801 cmd->action = cpu_to_le32(MWL8K_USE_AUTO_RATE);
2802 cmd->multicast_rate = mcast;
2803 cmd->management_rate = mgmt;
2805 rc = mwl8k_post_cmd(hw, &cmd->header);
2812 * CMD_ENABLE_SNIFFER.
2814 struct mwl8k_cmd_enable_sniffer {
2815 struct mwl8k_cmd_pkt header;
2819 static int mwl8k_cmd_enable_sniffer(struct ieee80211_hw *hw, bool enable)
2821 struct mwl8k_cmd_enable_sniffer *cmd;
2824 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2828 cmd->header.code = cpu_to_le16(MWL8K_CMD_ENABLE_SNIFFER);
2829 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2830 cmd->action = cpu_to_le32(!!enable);
2832 rc = mwl8k_post_cmd(hw, &cmd->header);
2841 struct mwl8k_cmd_set_mac_addr {
2842 struct mwl8k_cmd_pkt header;
2846 __u8 mac_addr[ETH_ALEN];
2848 __u8 mac_addr[ETH_ALEN];
2852 #define MWL8K_MAC_TYPE_PRIMARY_CLIENT 0
2853 #define MWL8K_MAC_TYPE_SECONDARY_CLIENT 1
2854 #define MWL8K_MAC_TYPE_PRIMARY_AP 2
2855 #define MWL8K_MAC_TYPE_SECONDARY_AP 3
2857 static int mwl8k_cmd_set_mac_addr(struct ieee80211_hw *hw,
2858 struct ieee80211_vif *vif, u8 *mac)
2860 struct mwl8k_priv *priv = hw->priv;
2861 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
2862 struct mwl8k_cmd_set_mac_addr *cmd;
2866 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
2867 if (vif != NULL && vif->type == NL80211_IFTYPE_STATION) {
2868 if (mwl8k_vif->macid + 1 == ffs(priv->sta_macids_supported))
2869 mac_type = MWL8K_MAC_TYPE_PRIMARY_CLIENT;
2871 mac_type = MWL8K_MAC_TYPE_SECONDARY_CLIENT;
2872 } else if (vif != NULL && vif->type == NL80211_IFTYPE_AP) {
2873 if (mwl8k_vif->macid + 1 == ffs(priv->ap_macids_supported))
2874 mac_type = MWL8K_MAC_TYPE_PRIMARY_AP;
2876 mac_type = MWL8K_MAC_TYPE_SECONDARY_AP;
2879 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2883 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_MAC_ADDR);
2884 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2886 cmd->mbss.mac_type = cpu_to_le16(mac_type);
2887 memcpy(cmd->mbss.mac_addr, mac, ETH_ALEN);
2889 memcpy(cmd->mac_addr, mac, ETH_ALEN);
2892 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
2899 * CMD_SET_RATEADAPT_MODE.
2901 struct mwl8k_cmd_set_rate_adapt_mode {
2902 struct mwl8k_cmd_pkt header;
2907 static int mwl8k_cmd_set_rateadapt_mode(struct ieee80211_hw *hw, __u16 mode)
2909 struct mwl8k_cmd_set_rate_adapt_mode *cmd;
2912 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2916 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_RATEADAPT_MODE);
2917 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2918 cmd->action = cpu_to_le16(MWL8K_CMD_SET);
2919 cmd->mode = cpu_to_le16(mode);
2921 rc = mwl8k_post_cmd(hw, &cmd->header);
2930 struct mwl8k_cmd_bss_start {
2931 struct mwl8k_cmd_pkt header;
2935 static int mwl8k_cmd_bss_start(struct ieee80211_hw *hw,
2936 struct ieee80211_vif *vif, int enable)
2938 struct mwl8k_cmd_bss_start *cmd;
2941 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2945 cmd->header.code = cpu_to_le16(MWL8K_CMD_BSS_START);
2946 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2947 cmd->enable = cpu_to_le32(enable);
2949 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
2958 struct mwl8k_cmd_set_new_stn {
2959 struct mwl8k_cmd_pkt header;
2965 __le32 legacy_rates;
2968 __le16 ht_capabilities_info;
2969 __u8 mac_ht_param_info;
2971 __u8 control_channel;
2980 #define MWL8K_STA_ACTION_ADD 0
2981 #define MWL8K_STA_ACTION_REMOVE 2
2983 static int mwl8k_cmd_set_new_stn_add(struct ieee80211_hw *hw,
2984 struct ieee80211_vif *vif,
2985 struct ieee80211_sta *sta)
2987 struct mwl8k_cmd_set_new_stn *cmd;
2991 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
2995 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
2996 cmd->header.length = cpu_to_le16(sizeof(*cmd));
2997 cmd->aid = cpu_to_le16(sta->aid);
2998 memcpy(cmd->mac_addr, sta->addr, ETH_ALEN);
2999 cmd->stn_id = cpu_to_le16(sta->aid);
3000 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_ADD);
3001 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ)
3002 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
3004 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
3005 cmd->legacy_rates = cpu_to_le32(rates);
3006 if (sta->ht_cap.ht_supported) {
3007 cmd->ht_rates[0] = sta->ht_cap.mcs.rx_mask[0];
3008 cmd->ht_rates[1] = sta->ht_cap.mcs.rx_mask[1];
3009 cmd->ht_rates[2] = sta->ht_cap.mcs.rx_mask[2];
3010 cmd->ht_rates[3] = sta->ht_cap.mcs.rx_mask[3];
3011 cmd->ht_capabilities_info = cpu_to_le16(sta->ht_cap.cap);
3012 cmd->mac_ht_param_info = (sta->ht_cap.ampdu_factor & 3) |
3013 ((sta->ht_cap.ampdu_density & 7) << 2);
3014 cmd->is_qos_sta = 1;
3017 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3023 static int mwl8k_cmd_set_new_stn_add_self(struct ieee80211_hw *hw,
3024 struct ieee80211_vif *vif)
3026 struct mwl8k_cmd_set_new_stn *cmd;
3029 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3033 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
3034 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3035 memcpy(cmd->mac_addr, vif->addr, ETH_ALEN);
3037 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3043 static int mwl8k_cmd_set_new_stn_del(struct ieee80211_hw *hw,
3044 struct ieee80211_vif *vif, u8 *addr)
3046 struct mwl8k_cmd_set_new_stn *cmd;
3049 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3053 cmd->header.code = cpu_to_le16(MWL8K_CMD_SET_NEW_STN);
3054 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3055 memcpy(cmd->mac_addr, addr, ETH_ALEN);
3056 cmd->action = cpu_to_le16(MWL8K_STA_ACTION_REMOVE);
3058 rc = mwl8k_post_pervif_cmd(hw, vif, &cmd->header);
3067 struct ewc_ht_info {
3073 struct peer_capability_info {
3074 /* Peer type - AP vs. STA. */
3077 /* Basic 802.11 capabilities from assoc resp. */
3080 /* Set if peer supports 802.11n high throughput (HT). */
3083 /* Valid if HT is supported. */
3085 __u8 extended_ht_caps;
3086 struct ewc_ht_info ewc_info;
3088 /* Legacy rate table. Intersection of our rates and peer rates. */
3089 __u8 legacy_rates[12];
3091 /* HT rate table. Intersection of our rates and peer rates. */
3095 /* If set, interoperability mode, no proprietary extensions. */
3099 __le16 amsdu_enabled;
3102 struct mwl8k_cmd_update_stadb {
3103 struct mwl8k_cmd_pkt header;
3105 /* See STADB_ACTION_TYPE */
3108 /* Peer MAC address */
3109 __u8 peer_addr[ETH_ALEN];
3113 /* Peer info - valid during add/update. */
3114 struct peer_capability_info peer_info;
3117 #define MWL8K_STA_DB_MODIFY_ENTRY 1
3118 #define MWL8K_STA_DB_DEL_ENTRY 2
3120 /* Peer Entry flags - used to define the type of the peer node */
3121 #define MWL8K_PEER_TYPE_ACCESSPOINT 2
3123 static int mwl8k_cmd_update_stadb_add(struct ieee80211_hw *hw,
3124 struct ieee80211_vif *vif,
3125 struct ieee80211_sta *sta)
3127 struct mwl8k_cmd_update_stadb *cmd;
3128 struct peer_capability_info *p;
3132 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3136 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
3137 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3138 cmd->action = cpu_to_le32(MWL8K_STA_DB_MODIFY_ENTRY);
3139 memcpy(cmd->peer_addr, sta->addr, ETH_ALEN);
3141 p = &cmd->peer_info;
3142 p->peer_type = MWL8K_PEER_TYPE_ACCESSPOINT;
3143 p->basic_caps = cpu_to_le16(vif->bss_conf.assoc_capability);
3144 p->ht_support = sta->ht_cap.ht_supported;
3145 p->ht_caps = cpu_to_le16(sta->ht_cap.cap);
3146 p->extended_ht_caps = (sta->ht_cap.ampdu_factor & 3) |
3147 ((sta->ht_cap.ampdu_density & 7) << 2);
3148 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ)
3149 rates = sta->supp_rates[IEEE80211_BAND_2GHZ];
3151 rates = sta->supp_rates[IEEE80211_BAND_5GHZ] << 5;
3152 legacy_rate_mask_to_array(p->legacy_rates, rates);
3153 memcpy(p->ht_rates, sta->ht_cap.mcs.rx_mask, 16);
3155 p->amsdu_enabled = 0;
3157 rc = mwl8k_post_cmd(hw, &cmd->header);
3160 return rc ? rc : p->station_id;
3163 static int mwl8k_cmd_update_stadb_del(struct ieee80211_hw *hw,
3164 struct ieee80211_vif *vif, u8 *addr)
3166 struct mwl8k_cmd_update_stadb *cmd;
3169 cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
3173 cmd->header.code = cpu_to_le16(MWL8K_CMD_UPDATE_STADB);
3174 cmd->header.length = cpu_to_le16(sizeof(*cmd));
3175 cmd->action = cpu_to_le32(MWL8K_STA_DB_DEL_ENTRY);
3176 memcpy(cmd->peer_addr, addr, ETH_ALEN);
3178 rc = mwl8k_post_cmd(hw, &cmd->header);
3186 * Interrupt handling.
3188 static irqreturn_t mwl8k_interrupt(int irq, void *dev_id)
3190 struct ieee80211_hw *hw = dev_id;
3191 struct mwl8k_priv *priv = hw->priv;
3194 status = ioread32(priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
3198 if (status & MWL8K_A2H_INT_TX_DONE) {
3199 status &= ~MWL8K_A2H_INT_TX_DONE;
3200 tasklet_schedule(&priv->poll_tx_task);
3203 if (status & MWL8K_A2H_INT_RX_READY) {
3204 status &= ~MWL8K_A2H_INT_RX_READY;
3205 tasklet_schedule(&priv->poll_rx_task);
3209 iowrite32(~status, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
3211 if (status & MWL8K_A2H_INT_OPC_DONE) {
3212 if (priv->hostcmd_wait != NULL)
3213 complete(priv->hostcmd_wait);
3216 if (status & MWL8K_A2H_INT_QUEUE_EMPTY) {
3217 if (!mutex_is_locked(&priv->fw_mutex) &&
3218 priv->radio_on && priv->pending_tx_pkts)
3219 mwl8k_tx_start(priv);
3225 static void mwl8k_tx_poll(unsigned long data)
3227 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
3228 struct mwl8k_priv *priv = hw->priv;
3234 spin_lock_bh(&priv->tx_lock);
3236 for (i = 0; i < MWL8K_TX_QUEUES; i++)
3237 limit -= mwl8k_txq_reclaim(hw, i, limit, 0);
3239 if (!priv->pending_tx_pkts && priv->tx_wait != NULL) {
3240 complete(priv->tx_wait);
3241 priv->tx_wait = NULL;
3244 spin_unlock_bh(&priv->tx_lock);
3247 writel(~MWL8K_A2H_INT_TX_DONE,
3248 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
3250 tasklet_schedule(&priv->poll_tx_task);
3254 static void mwl8k_rx_poll(unsigned long data)
3256 struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
3257 struct mwl8k_priv *priv = hw->priv;
3261 limit -= rxq_process(hw, 0, limit);
3262 limit -= rxq_refill(hw, 0, limit);
3265 writel(~MWL8K_A2H_INT_RX_READY,
3266 priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
3268 tasklet_schedule(&priv->poll_rx_task);
3274 * Core driver operations.
3276 static int mwl8k_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
3278 struct mwl8k_priv *priv = hw->priv;
3279 int index = skb_get_queue_mapping(skb);
3282 if (!priv->radio_on) {
3283 wiphy_debug(hw->wiphy,
3284 "dropped TX frame since radio disabled\n");
3286 return NETDEV_TX_OK;
3289 rc = mwl8k_txq_xmit(hw, index, skb);
3294 static int mwl8k_start(struct ieee80211_hw *hw)
3296 struct mwl8k_priv *priv = hw->priv;
3299 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
3300 IRQF_SHARED, MWL8K_NAME, hw);
3302 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
3306 /* Enable TX reclaim and RX tasklets. */
3307 tasklet_enable(&priv->poll_tx_task);
3308 tasklet_enable(&priv->poll_rx_task);
3310 /* Enable interrupts */
3311 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
3313 rc = mwl8k_fw_lock(hw);
3315 rc = mwl8k_cmd_radio_enable(hw);
3319 rc = mwl8k_cmd_enable_sniffer(hw, 0);
3322 rc = mwl8k_cmd_set_pre_scan(hw);
3325 rc = mwl8k_cmd_set_post_scan(hw,
3326 "\x00\x00\x00\x00\x00\x00");
3330 rc = mwl8k_cmd_set_rateadapt_mode(hw, 0);
3333 rc = mwl8k_cmd_set_wmm_mode(hw, 0);
3335 mwl8k_fw_unlock(hw);
3339 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
3340 free_irq(priv->pdev->irq, hw);
3341 tasklet_disable(&priv->poll_tx_task);
3342 tasklet_disable(&priv->poll_rx_task);
3348 static void mwl8k_stop(struct ieee80211_hw *hw)
3350 struct mwl8k_priv *priv = hw->priv;
3353 mwl8k_cmd_radio_disable(hw);
3355 ieee80211_stop_queues(hw);
3357 /* Disable interrupts */
3358 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
3359 free_irq(priv->pdev->irq, hw);
3361 /* Stop finalize join worker */
3362 cancel_work_sync(&priv->finalize_join_worker);
3363 if (priv->beacon_skb != NULL)
3364 dev_kfree_skb(priv->beacon_skb);
3366 /* Stop TX reclaim and RX tasklets. */
3367 tasklet_disable(&priv->poll_tx_task);
3368 tasklet_disable(&priv->poll_rx_task);
3370 /* Return all skbs to mac80211 */
3371 for (i = 0; i < MWL8K_TX_QUEUES; i++)
3372 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
3375 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image);
3377 static int mwl8k_add_interface(struct ieee80211_hw *hw,
3378 struct ieee80211_vif *vif)
3380 struct mwl8k_priv *priv = hw->priv;
3381 struct mwl8k_vif *mwl8k_vif;
3382 u32 macids_supported;
3384 struct mwl8k_device_info *di;
3387 * Reject interface creation if sniffer mode is active, as
3388 * STA operation is mutually exclusive with hardware sniffer
3389 * mode. (Sniffer mode is only used on STA firmware.)
3391 if (priv->sniffer_enabled) {
3392 wiphy_info(hw->wiphy,
3393 "unable to create STA interface because sniffer mode is enabled\n");
3397 di = priv->device_info;
3398 switch (vif->type) {
3399 case NL80211_IFTYPE_AP:
3400 if (!priv->ap_fw && di->fw_image_ap) {
3401 /* we must load the ap fw to meet this request */
3402 if (!list_empty(&priv->vif_list))
3404 rc = mwl8k_reload_firmware(hw, di->fw_image_ap);
3408 macids_supported = priv->ap_macids_supported;
3410 case NL80211_IFTYPE_STATION:
3411 if (priv->ap_fw && di->fw_image_sta) {
3412 /* we must load the sta fw to meet this request */
3413 if (!list_empty(&priv->vif_list))
3415 rc = mwl8k_reload_firmware(hw, di->fw_image_sta);
3419 macids_supported = priv->sta_macids_supported;
3425 macid = ffs(macids_supported & ~priv->macids_used);
3429 /* Setup driver private area. */
3430 mwl8k_vif = MWL8K_VIF(vif);
3431 memset(mwl8k_vif, 0, sizeof(*mwl8k_vif));
3432 mwl8k_vif->vif = vif;
3433 mwl8k_vif->macid = macid;
3434 mwl8k_vif->seqno = 0;
3436 /* Set the mac address. */
3437 mwl8k_cmd_set_mac_addr(hw, vif, vif->addr);
3440 mwl8k_cmd_set_new_stn_add_self(hw, vif);
3442 priv->macids_used |= 1 << mwl8k_vif->macid;
3443 list_add_tail(&mwl8k_vif->list, &priv->vif_list);
3448 static void mwl8k_remove_interface(struct ieee80211_hw *hw,
3449 struct ieee80211_vif *vif)
3451 struct mwl8k_priv *priv = hw->priv;
3452 struct mwl8k_vif *mwl8k_vif = MWL8K_VIF(vif);
3455 mwl8k_cmd_set_new_stn_del(hw, vif, vif->addr);
3457 mwl8k_cmd_set_mac_addr(hw, vif, "\x00\x00\x00\x00\x00\x00");
3459 priv->macids_used &= ~(1 << mwl8k_vif->macid);
3460 list_del(&mwl8k_vif->list);
3463 static int mwl8k_config(struct ieee80211_hw *hw, u32 changed)
3465 struct ieee80211_conf *conf = &hw->conf;
3466 struct mwl8k_priv *priv = hw->priv;
3469 if (conf->flags & IEEE80211_CONF_IDLE) {
3470 mwl8k_cmd_radio_disable(hw);
3474 rc = mwl8k_fw_lock(hw);
3478 rc = mwl8k_cmd_radio_enable(hw);
3482 rc = mwl8k_cmd_set_rf_channel(hw, conf);
3486 if (conf->power_level > 18)
3487 conf->power_level = 18;
3490 rc = mwl8k_cmd_tx_power(hw, conf, conf->power_level);
3494 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_RX, 0x7);
3496 rc = mwl8k_cmd_rf_antenna(hw, MWL8K_RF_ANTENNA_TX, 0x7);
3498 rc = mwl8k_cmd_rf_tx_power(hw, conf->power_level);
3501 rc = mwl8k_cmd_mimo_config(hw, 0x7, 0x7);
3505 mwl8k_fw_unlock(hw);
3511 mwl8k_bss_info_changed_sta(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3512 struct ieee80211_bss_conf *info, u32 changed)
3514 struct mwl8k_priv *priv = hw->priv;
3515 u32 ap_legacy_rates;
3516 u8 ap_mcs_rates[16];
3519 if (mwl8k_fw_lock(hw))
3523 * No need to capture a beacon if we're no longer associated.
3525 if ((changed & BSS_CHANGED_ASSOC) && !vif->bss_conf.assoc)
3526 priv->capture_beacon = false;
3529 * Get the AP's legacy and MCS rates.
3531 if (vif->bss_conf.assoc) {
3532 struct ieee80211_sta *ap;
3536 ap = ieee80211_find_sta(vif, vif->bss_conf.bssid);
3542 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ) {
3543 ap_legacy_rates = ap->supp_rates[IEEE80211_BAND_2GHZ];
3546 ap->supp_rates[IEEE80211_BAND_5GHZ] << 5;
3548 memcpy(ap_mcs_rates, ap->ht_cap.mcs.rx_mask, 16);
3553 if ((changed & BSS_CHANGED_ASSOC) && vif->bss_conf.assoc) {
3554 rc = mwl8k_cmd_set_rate(hw, vif, ap_legacy_rates, ap_mcs_rates);
3558 rc = mwl8k_cmd_use_fixed_rate_sta(hw);
3563 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
3564 rc = mwl8k_set_radio_preamble(hw,
3565 vif->bss_conf.use_short_preamble);
3570 if (changed & BSS_CHANGED_ERP_SLOT) {
3571 rc = mwl8k_cmd_set_slot(hw, vif->bss_conf.use_short_slot);
3576 if (vif->bss_conf.assoc &&
3577 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_ERP_CTS_PROT |
3579 rc = mwl8k_cmd_set_aid(hw, vif, ap_legacy_rates);
3584 if (vif->bss_conf.assoc &&
3585 (changed & (BSS_CHANGED_ASSOC | BSS_CHANGED_BEACON_INT))) {
3587 * Finalize the join. Tell rx handler to process
3588 * next beacon from our BSSID.
3590 memcpy(priv->capture_bssid, vif->bss_conf.bssid, ETH_ALEN);
3591 priv->capture_beacon = true;
3595 mwl8k_fw_unlock(hw);
3599 mwl8k_bss_info_changed_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3600 struct ieee80211_bss_conf *info, u32 changed)
3604 if (mwl8k_fw_lock(hw))
3607 if (changed & BSS_CHANGED_ERP_PREAMBLE) {
3608 rc = mwl8k_set_radio_preamble(hw,
3609 vif->bss_conf.use_short_preamble);
3614 if (changed & BSS_CHANGED_BASIC_RATES) {
3619 * Use lowest supported basic rate for multicasts
3620 * and management frames (such as probe responses --
3621 * beacons will always go out at 1 Mb/s).
3623 idx = ffs(vif->bss_conf.basic_rates);
3627 if (hw->conf.channel->band == IEEE80211_BAND_2GHZ)
3628 rate = mwl8k_rates_24[idx].hw_value;
3630 rate = mwl8k_rates_50[idx].hw_value;
3632 mwl8k_cmd_use_fixed_rate_ap(hw, rate, rate);
3635 if (changed & (BSS_CHANGED_BEACON_INT | BSS_CHANGED_BEACON)) {
3636 struct sk_buff *skb;
3638 skb = ieee80211_beacon_get(hw, vif);
3640 mwl8k_cmd_set_beacon(hw, vif, skb->data, skb->len);
3645 if (changed & BSS_CHANGED_BEACON_ENABLED)
3646 mwl8k_cmd_bss_start(hw, vif, info->enable_beacon);
3649 mwl8k_fw_unlock(hw);
3653 mwl8k_bss_info_changed(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3654 struct ieee80211_bss_conf *info, u32 changed)
3656 struct mwl8k_priv *priv = hw->priv;
3659 mwl8k_bss_info_changed_sta(hw, vif, info, changed);
3661 mwl8k_bss_info_changed_ap(hw, vif, info, changed);
3664 static u64 mwl8k_prepare_multicast(struct ieee80211_hw *hw,
3665 struct netdev_hw_addr_list *mc_list)
3667 struct mwl8k_cmd_pkt *cmd;
3670 * Synthesize and return a command packet that programs the
3671 * hardware multicast address filter. At this point we don't
3672 * know whether FIF_ALLMULTI is being requested, but if it is,
3673 * we'll end up throwing this packet away and creating a new
3674 * one in mwl8k_configure_filter().
3676 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 0, mc_list);
3678 return (unsigned long)cmd;
3682 mwl8k_configure_filter_sniffer(struct ieee80211_hw *hw,
3683 unsigned int changed_flags,
3684 unsigned int *total_flags)
3686 struct mwl8k_priv *priv = hw->priv;
3689 * Hardware sniffer mode is mutually exclusive with STA
3690 * operation, so refuse to enable sniffer mode if a STA
3691 * interface is active.
3693 if (!list_empty(&priv->vif_list)) {
3694 if (net_ratelimit())
3695 wiphy_info(hw->wiphy,
3696 "not enabling sniffer mode because STA interface is active\n");
3700 if (!priv->sniffer_enabled) {
3701 if (mwl8k_cmd_enable_sniffer(hw, 1))
3703 priv->sniffer_enabled = true;
3706 *total_flags &= FIF_PROMISC_IN_BSS | FIF_ALLMULTI |
3707 FIF_BCN_PRBRESP_PROMISC | FIF_CONTROL |
3713 static struct mwl8k_vif *mwl8k_first_vif(struct mwl8k_priv *priv)
3715 if (!list_empty(&priv->vif_list))
3716 return list_entry(priv->vif_list.next, struct mwl8k_vif, list);
3721 static void mwl8k_configure_filter(struct ieee80211_hw *hw,
3722 unsigned int changed_flags,
3723 unsigned int *total_flags,
3726 struct mwl8k_priv *priv = hw->priv;
3727 struct mwl8k_cmd_pkt *cmd = (void *)(unsigned long)multicast;
3730 * AP firmware doesn't allow fine-grained control over
3731 * the receive filter.
3734 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
3740 * Enable hardware sniffer mode if FIF_CONTROL or
3741 * FIF_OTHER_BSS is requested.
3743 if (*total_flags & (FIF_CONTROL | FIF_OTHER_BSS) &&
3744 mwl8k_configure_filter_sniffer(hw, changed_flags, total_flags)) {
3749 /* Clear unsupported feature flags */
3750 *total_flags &= FIF_ALLMULTI | FIF_BCN_PRBRESP_PROMISC;
3752 if (mwl8k_fw_lock(hw)) {
3757 if (priv->sniffer_enabled) {
3758 mwl8k_cmd_enable_sniffer(hw, 0);
3759 priv->sniffer_enabled = false;
3762 if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
3763 if (*total_flags & FIF_BCN_PRBRESP_PROMISC) {
3765 * Disable the BSS filter.
3767 mwl8k_cmd_set_pre_scan(hw);
3769 struct mwl8k_vif *mwl8k_vif;
3773 * Enable the BSS filter.
3775 * If there is an active STA interface, use that
3776 * interface's BSSID, otherwise use a dummy one
3777 * (where the OUI part needs to be nonzero for
3778 * the BSSID to be accepted by POST_SCAN).
3780 mwl8k_vif = mwl8k_first_vif(priv);
3781 if (mwl8k_vif != NULL)
3782 bssid = mwl8k_vif->vif->bss_conf.bssid;
3784 bssid = "\x01\x00\x00\x00\x00\x00";
3786 mwl8k_cmd_set_post_scan(hw, bssid);
3791 * If FIF_ALLMULTI is being requested, throw away the command
3792 * packet that ->prepare_multicast() built and replace it with
3793 * a command packet that enables reception of all multicast
3796 if (*total_flags & FIF_ALLMULTI) {
3798 cmd = __mwl8k_cmd_mac_multicast_adr(hw, 1, NULL);
3802 mwl8k_post_cmd(hw, cmd);
3806 mwl8k_fw_unlock(hw);
3809 static int mwl8k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3811 return mwl8k_cmd_set_rts_threshold(hw, value);
3814 static int mwl8k_sta_remove(struct ieee80211_hw *hw,
3815 struct ieee80211_vif *vif,
3816 struct ieee80211_sta *sta)
3818 struct mwl8k_priv *priv = hw->priv;
3821 return mwl8k_cmd_set_new_stn_del(hw, vif, sta->addr);
3823 return mwl8k_cmd_update_stadb_del(hw, vif, sta->addr);
3826 static int mwl8k_sta_add(struct ieee80211_hw *hw,
3827 struct ieee80211_vif *vif,
3828 struct ieee80211_sta *sta)
3830 struct mwl8k_priv *priv = hw->priv;
3834 ret = mwl8k_cmd_update_stadb_add(hw, vif, sta);
3836 MWL8K_STA(sta)->peer_id = ret;
3843 return mwl8k_cmd_set_new_stn_add(hw, vif, sta);
3846 static int mwl8k_conf_tx(struct ieee80211_hw *hw, u16 queue,
3847 const struct ieee80211_tx_queue_params *params)
3849 struct mwl8k_priv *priv = hw->priv;
3852 rc = mwl8k_fw_lock(hw);
3854 BUG_ON(queue > MWL8K_TX_QUEUES - 1);
3855 memcpy(&priv->wmm_params[queue], params, sizeof(*params));
3857 if (!priv->wmm_enabled)
3858 rc = mwl8k_cmd_set_wmm_mode(hw, 1);
3861 rc = mwl8k_cmd_set_edca_params(hw, queue,
3867 mwl8k_fw_unlock(hw);
3873 static int mwl8k_get_stats(struct ieee80211_hw *hw,
3874 struct ieee80211_low_level_stats *stats)
3876 return mwl8k_cmd_get_stat(hw, stats);
3879 static int mwl8k_get_survey(struct ieee80211_hw *hw, int idx,
3880 struct survey_info *survey)
3882 struct mwl8k_priv *priv = hw->priv;
3883 struct ieee80211_conf *conf = &hw->conf;
3888 survey->channel = conf->channel;
3889 survey->filled = SURVEY_INFO_NOISE_DBM;
3890 survey->noise = priv->noise;
3896 mwl8k_ampdu_action(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
3897 enum ieee80211_ampdu_mlme_action action,
3898 struct ieee80211_sta *sta, u16 tid, u16 *ssn)
3901 case IEEE80211_AMPDU_RX_START:
3902 case IEEE80211_AMPDU_RX_STOP:
3903 if (!(hw->flags & IEEE80211_HW_AMPDU_AGGREGATION))
3911 static const struct ieee80211_ops mwl8k_ops = {
3913 .start = mwl8k_start,
3915 .add_interface = mwl8k_add_interface,
3916 .remove_interface = mwl8k_remove_interface,
3917 .config = mwl8k_config,
3918 .bss_info_changed = mwl8k_bss_info_changed,
3919 .prepare_multicast = mwl8k_prepare_multicast,
3920 .configure_filter = mwl8k_configure_filter,
3921 .set_rts_threshold = mwl8k_set_rts_threshold,
3922 .sta_add = mwl8k_sta_add,
3923 .sta_remove = mwl8k_sta_remove,
3924 .conf_tx = mwl8k_conf_tx,
3925 .get_stats = mwl8k_get_stats,
3926 .get_survey = mwl8k_get_survey,
3927 .ampdu_action = mwl8k_ampdu_action,
3930 static void mwl8k_finalize_join_worker(struct work_struct *work)
3932 struct mwl8k_priv *priv =
3933 container_of(work, struct mwl8k_priv, finalize_join_worker);
3934 struct sk_buff *skb = priv->beacon_skb;
3935 struct ieee80211_mgmt *mgmt = (void *)skb->data;
3936 int len = skb->len - offsetof(struct ieee80211_mgmt, u.beacon.variable);
3937 const u8 *tim = cfg80211_find_ie(WLAN_EID_TIM,
3938 mgmt->u.beacon.variable, len);
3939 int dtim_period = 1;
3941 if (tim && tim[1] >= 2)
3942 dtim_period = tim[3];
3944 mwl8k_cmd_finalize_join(priv->hw, skb->data, skb->len, dtim_period);
3947 priv->beacon_skb = NULL;
3956 #define MWL8K_8366_AP_FW_API 1
3957 #define _MWL8K_8366_AP_FW(api) "mwl8k/fmimage_8366_ap-" #api ".fw"
3958 #define MWL8K_8366_AP_FW(api) _MWL8K_8366_AP_FW(api)
3960 static struct mwl8k_device_info mwl8k_info_tbl[] __devinitdata = {
3962 .part_name = "88w8363",
3963 .helper_image = "mwl8k/helper_8363.fw",
3964 .fw_image_sta = "mwl8k/fmimage_8363.fw",
3967 .part_name = "88w8687",
3968 .helper_image = "mwl8k/helper_8687.fw",
3969 .fw_image_sta = "mwl8k/fmimage_8687.fw",
3972 .part_name = "88w8366",
3973 .helper_image = "mwl8k/helper_8366.fw",
3974 .fw_image_sta = "mwl8k/fmimage_8366.fw",
3975 .fw_image_ap = MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API),
3976 .fw_api_ap = MWL8K_8366_AP_FW_API,
3977 .ap_rxd_ops = &rxd_8366_ap_ops,
3981 MODULE_FIRMWARE("mwl8k/helper_8363.fw");
3982 MODULE_FIRMWARE("mwl8k/fmimage_8363.fw");
3983 MODULE_FIRMWARE("mwl8k/helper_8687.fw");
3984 MODULE_FIRMWARE("mwl8k/fmimage_8687.fw");
3985 MODULE_FIRMWARE("mwl8k/helper_8366.fw");
3986 MODULE_FIRMWARE("mwl8k/fmimage_8366.fw");
3987 MODULE_FIRMWARE(MWL8K_8366_AP_FW(MWL8K_8366_AP_FW_API));
3989 static DEFINE_PCI_DEVICE_TABLE(mwl8k_pci_id_table) = {
3990 { PCI_VDEVICE(MARVELL, 0x2a0a), .driver_data = MWL8363, },
3991 { PCI_VDEVICE(MARVELL, 0x2a0c), .driver_data = MWL8363, },
3992 { PCI_VDEVICE(MARVELL, 0x2a24), .driver_data = MWL8363, },
3993 { PCI_VDEVICE(MARVELL, 0x2a2b), .driver_data = MWL8687, },
3994 { PCI_VDEVICE(MARVELL, 0x2a30), .driver_data = MWL8687, },
3995 { PCI_VDEVICE(MARVELL, 0x2a40), .driver_data = MWL8366, },
3996 { PCI_VDEVICE(MARVELL, 0x2a43), .driver_data = MWL8366, },
3999 MODULE_DEVICE_TABLE(pci, mwl8k_pci_id_table);
4001 static int mwl8k_init_firmware(struct ieee80211_hw *hw, char *fw_image)
4003 struct mwl8k_priv *priv = hw->priv;
4006 /* Reset firmware and hardware */
4007 mwl8k_hw_reset(priv);
4009 /* Ask userland hotplug daemon for the device firmware */
4010 rc = mwl8k_request_firmware(priv, fw_image);
4012 wiphy_err(hw->wiphy, "Firmware files not found\n");
4016 /* Load firmware into hardware */
4017 rc = mwl8k_load_firmware(hw);
4019 wiphy_err(hw->wiphy, "Cannot start firmware\n");
4021 /* Reclaim memory once firmware is successfully loaded */
4022 mwl8k_release_firmware(priv);
4027 /* initialize hw after successfully loading a firmware image */
4028 static int mwl8k_probe_hw(struct ieee80211_hw *hw)
4030 struct mwl8k_priv *priv = hw->priv;
4035 priv->rxd_ops = priv->device_info->ap_rxd_ops;
4036 if (priv->rxd_ops == NULL) {
4037 wiphy_err(hw->wiphy,
4038 "Driver does not have AP firmware image support for this hardware\n");
4039 goto err_stop_firmware;
4042 priv->rxd_ops = &rxd_sta_ops;
4045 priv->sniffer_enabled = false;
4046 priv->wmm_enabled = false;
4047 priv->pending_tx_pkts = 0;
4049 rc = mwl8k_rxq_init(hw, 0);
4051 goto err_stop_firmware;
4052 rxq_refill(hw, 0, INT_MAX);
4054 for (i = 0; i < MWL8K_TX_QUEUES; i++) {
4055 rc = mwl8k_txq_init(hw, i);
4057 goto err_free_queues;
4060 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS);
4061 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4062 iowrite32(MWL8K_A2H_INT_TX_DONE | MWL8K_A2H_INT_RX_READY,
4063 priv->regs + MWL8K_HIU_A2H_INTERRUPT_CLEAR_SEL);
4064 iowrite32(0xffffffff, priv->regs + MWL8K_HIU_A2H_INTERRUPT_STATUS_MASK);
4066 rc = request_irq(priv->pdev->irq, mwl8k_interrupt,
4067 IRQF_SHARED, MWL8K_NAME, hw);
4069 wiphy_err(hw->wiphy, "failed to register IRQ handler\n");
4070 goto err_free_queues;
4074 * Temporarily enable interrupts. Initial firmware host
4075 * commands use interrupts and avoid polling. Disable
4076 * interrupts when done.
4078 iowrite32(MWL8K_A2H_EVENTS, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4080 /* Get config data, mac addrs etc */
4082 rc = mwl8k_cmd_get_hw_spec_ap(hw);
4084 rc = mwl8k_cmd_set_hw_spec(hw);
4086 rc = mwl8k_cmd_get_hw_spec_sta(hw);
4089 wiphy_err(hw->wiphy, "Cannot initialise firmware\n");
4093 /* Turn radio off */
4094 rc = mwl8k_cmd_radio_disable(hw);
4096 wiphy_err(hw->wiphy, "Cannot disable\n");
4100 /* Clear MAC address */
4101 rc = mwl8k_cmd_set_mac_addr(hw, NULL, "\x00\x00\x00\x00\x00\x00");
4103 wiphy_err(hw->wiphy, "Cannot clear MAC address\n");
4107 /* Disable interrupts */
4108 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4109 free_irq(priv->pdev->irq, hw);
4111 wiphy_info(hw->wiphy, "%s v%d, %pm, %s firmware %u.%u.%u.%u\n",
4112 priv->device_info->part_name,
4113 priv->hw_rev, hw->wiphy->perm_addr,
4114 priv->ap_fw ? "AP" : "STA",
4115 (priv->fw_rev >> 24) & 0xff, (priv->fw_rev >> 16) & 0xff,
4116 (priv->fw_rev >> 8) & 0xff, priv->fw_rev & 0xff);
4121 iowrite32(0, priv->regs + MWL8K_HIU_A2H_INTERRUPT_MASK);
4122 free_irq(priv->pdev->irq, hw);
4125 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4126 mwl8k_txq_deinit(hw, i);
4127 mwl8k_rxq_deinit(hw, 0);
4130 mwl8k_hw_reset(priv);
4136 * invoke mwl8k_reload_firmware to change the firmware image after the device
4137 * has already been registered
4139 static int mwl8k_reload_firmware(struct ieee80211_hw *hw, char *fw_image)
4142 struct mwl8k_priv *priv = hw->priv;
4145 mwl8k_rxq_deinit(hw, 0);
4147 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4148 mwl8k_txq_deinit(hw, i);
4150 rc = mwl8k_init_firmware(hw, fw_image);
4154 rc = mwl8k_probe_hw(hw);
4158 rc = mwl8k_start(hw);
4162 rc = mwl8k_config(hw, ~0);
4166 for (i = 0; i < MWL8K_TX_QUEUES; i++) {
4167 rc = mwl8k_conf_tx(hw, i, &priv->wmm_params[i]);
4175 printk(KERN_WARNING "mwl8k: Failed to reload firmware image.\n");
4179 static int mwl8k_firmware_load_success(struct mwl8k_priv *priv)
4181 struct ieee80211_hw *hw = priv->hw;
4185 * Extra headroom is the size of the required DMA header
4186 * minus the size of the smallest 802.11 frame (CTS frame).
4188 hw->extra_tx_headroom =
4189 sizeof(struct mwl8k_dma_data) - sizeof(struct ieee80211_cts);
4191 hw->channel_change_time = 10;
4193 hw->queues = MWL8K_TX_QUEUES;
4195 /* Set rssi values to dBm */
4196 hw->flags |= IEEE80211_HW_SIGNAL_DBM;
4197 hw->vif_data_size = sizeof(struct mwl8k_vif);
4198 hw->sta_data_size = sizeof(struct mwl8k_sta);
4200 priv->macids_used = 0;
4201 INIT_LIST_HEAD(&priv->vif_list);
4203 /* Set default radio state and preamble */
4205 priv->radio_short_preamble = 0;
4207 /* Finalize join worker */
4208 INIT_WORK(&priv->finalize_join_worker, mwl8k_finalize_join_worker);
4210 /* TX reclaim and RX tasklets. */
4211 tasklet_init(&priv->poll_tx_task, mwl8k_tx_poll, (unsigned long)hw);
4212 tasklet_disable(&priv->poll_tx_task);
4213 tasklet_init(&priv->poll_rx_task, mwl8k_rx_poll, (unsigned long)hw);
4214 tasklet_disable(&priv->poll_rx_task);
4216 /* Power management cookie */
4217 priv->cookie = pci_alloc_consistent(priv->pdev, 4, &priv->cookie_dma);
4218 if (priv->cookie == NULL)
4221 mutex_init(&priv->fw_mutex);
4222 priv->fw_mutex_owner = NULL;
4223 priv->fw_mutex_depth = 0;
4224 priv->hostcmd_wait = NULL;
4226 spin_lock_init(&priv->tx_lock);
4228 priv->tx_wait = NULL;
4230 rc = mwl8k_probe_hw(hw);
4232 goto err_free_cookie;
4234 hw->wiphy->interface_modes = 0;
4235 if (priv->ap_macids_supported || priv->device_info->fw_image_ap)
4236 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_AP);
4237 if (priv->sta_macids_supported || priv->device_info->fw_image_sta)
4238 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_STATION);
4240 rc = ieee80211_register_hw(hw);
4242 wiphy_err(hw->wiphy, "Cannot register device\n");
4243 goto err_unprobe_hw;
4249 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4250 mwl8k_txq_deinit(hw, i);
4251 mwl8k_rxq_deinit(hw, 0);
4254 if (priv->cookie != NULL)
4255 pci_free_consistent(priv->pdev, 4,
4256 priv->cookie, priv->cookie_dma);
4260 static int __devinit mwl8k_probe(struct pci_dev *pdev,
4261 const struct pci_device_id *id)
4263 static int printed_version;
4264 struct ieee80211_hw *hw;
4265 struct mwl8k_priv *priv;
4266 struct mwl8k_device_info *di;
4269 if (!printed_version) {
4270 printk(KERN_INFO "%s version %s\n", MWL8K_DESC, MWL8K_VERSION);
4271 printed_version = 1;
4275 rc = pci_enable_device(pdev);
4277 printk(KERN_ERR "%s: Cannot enable new PCI device\n",
4282 rc = pci_request_regions(pdev, MWL8K_NAME);
4284 printk(KERN_ERR "%s: Cannot obtain PCI resources\n",
4286 goto err_disable_device;
4289 pci_set_master(pdev);
4292 hw = ieee80211_alloc_hw(sizeof(*priv), &mwl8k_ops);
4294 printk(KERN_ERR "%s: ieee80211 alloc failed\n", MWL8K_NAME);
4299 SET_IEEE80211_DEV(hw, &pdev->dev);
4300 pci_set_drvdata(pdev, hw);
4305 priv->device_info = &mwl8k_info_tbl[id->driver_data];
4308 priv->sram = pci_iomap(pdev, 0, 0x10000);
4309 if (priv->sram == NULL) {
4310 wiphy_err(hw->wiphy, "Cannot map device SRAM\n");
4315 * If BAR0 is a 32 bit BAR, the register BAR will be BAR1.
4316 * If BAR0 is a 64 bit BAR, the register BAR will be BAR2.
4318 priv->regs = pci_iomap(pdev, 1, 0x10000);
4319 if (priv->regs == NULL) {
4320 priv->regs = pci_iomap(pdev, 2, 0x10000);
4321 if (priv->regs == NULL) {
4322 wiphy_err(hw->wiphy, "Cannot map device registers\n");
4328 * Choose the initial fw image depending on user input and availability
4331 di = priv->device_info;
4332 if (ap_mode_default && di->fw_image_ap)
4333 rc = mwl8k_init_firmware(hw, di->fw_image_ap);
4334 else if (!ap_mode_default && di->fw_image_sta)
4335 rc = mwl8k_init_firmware(hw, di->fw_image_sta);
4336 else if (ap_mode_default && !di->fw_image_ap && di->fw_image_sta) {
4337 printk(KERN_WARNING "AP fw is unavailable. Using STA fw.");
4338 rc = mwl8k_init_firmware(hw, di->fw_image_sta);
4339 } else if (!ap_mode_default && !di->fw_image_sta && di->fw_image_ap) {
4340 printk(KERN_WARNING "STA fw is unavailable. Using AP fw.");
4341 rc = mwl8k_init_firmware(hw, di->fw_image_ap);
4343 rc = mwl8k_init_firmware(hw, di->fw_image_sta);
4345 goto err_stop_firmware;
4347 rc = mwl8k_firmware_load_success(priv);
4352 mwl8k_hw_reset(priv);
4355 if (priv->regs != NULL)
4356 pci_iounmap(pdev, priv->regs);
4358 if (priv->sram != NULL)
4359 pci_iounmap(pdev, priv->sram);
4361 pci_set_drvdata(pdev, NULL);
4362 ieee80211_free_hw(hw);
4365 pci_release_regions(pdev);
4368 pci_disable_device(pdev);
4373 static void __devexit mwl8k_shutdown(struct pci_dev *pdev)
4375 printk(KERN_ERR "===>%s(%u)\n", __func__, __LINE__);
4378 static void __devexit mwl8k_remove(struct pci_dev *pdev)
4380 struct ieee80211_hw *hw = pci_get_drvdata(pdev);
4381 struct mwl8k_priv *priv;
4388 ieee80211_stop_queues(hw);
4390 ieee80211_unregister_hw(hw);
4392 /* Remove TX reclaim and RX tasklets. */
4393 tasklet_kill(&priv->poll_tx_task);
4394 tasklet_kill(&priv->poll_rx_task);
4397 mwl8k_hw_reset(priv);
4399 /* Return all skbs to mac80211 */
4400 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4401 mwl8k_txq_reclaim(hw, i, INT_MAX, 1);
4403 for (i = 0; i < MWL8K_TX_QUEUES; i++)
4404 mwl8k_txq_deinit(hw, i);
4406 mwl8k_rxq_deinit(hw, 0);
4408 pci_free_consistent(priv->pdev, 4, priv->cookie, priv->cookie_dma);
4410 pci_iounmap(pdev, priv->regs);
4411 pci_iounmap(pdev, priv->sram);
4412 pci_set_drvdata(pdev, NULL);
4413 ieee80211_free_hw(hw);
4414 pci_release_regions(pdev);
4415 pci_disable_device(pdev);
4418 static struct pci_driver mwl8k_driver = {
4420 .id_table = mwl8k_pci_id_table,
4421 .probe = mwl8k_probe,
4422 .remove = __devexit_p(mwl8k_remove),
4423 .shutdown = __devexit_p(mwl8k_shutdown),
4426 static int __init mwl8k_init(void)
4428 return pci_register_driver(&mwl8k_driver);
4431 static void __exit mwl8k_exit(void)
4433 pci_unregister_driver(&mwl8k_driver);
4436 module_init(mwl8k_init);
4437 module_exit(mwl8k_exit);
4439 MODULE_DESCRIPTION(MWL8K_DESC);
4440 MODULE_VERSION(MWL8K_VERSION);
4441 MODULE_AUTHOR("Lennert Buytenhek <buytenh@marvell.com>");
4442 MODULE_LICENSE("GPL");