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1/**
2 * Copyright (c) 2014 Redpine Signals Inc.
3 *
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
7 *
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15 */
16
17#include <linux/etherdevice.h>
18#include "rsi_mgmt.h"
19#include "rsi_common.h"
20#include "rsi_ps.h"
21#include "rsi_hal.h"
22
23static struct bootup_params boot_params_20 = {
24 .magic_number = cpu_to_le16(0x5aa5),
25 .crystal_good_time = 0x0,
26 .valid = cpu_to_le32(VALID_20),
27 .reserved_for_valids = 0x0,
28 .bootup_mode_info = 0x0,
29 .digital_loop_back_params = 0x0,
30 .rtls_timestamp_en = 0x0,
31 .host_spi_intr_cfg = 0x0,
32 .device_clk_info = {{
33 .pll_config_g = {
34 .tapll_info_g = {
35 .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_20 << 8)|
36 (TA_PLL_M_VAL_20)),
37 .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_20),
38 },
39 .pll960_info_g = {
40 .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_20 << 8)|
41 (PLL960_N_VAL_20)),
42 .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_20),
43 .pll_reg_3 = 0x0,
44 },
45 .afepll_info_g = {
46 .pll_reg = cpu_to_le16(0x9f0),
47 }
48 },
49 .switch_clk_g = {
50 .switch_clk_info = cpu_to_le16(0xb),
51 .bbp_lmac_clk_reg_val = cpu_to_le16(0x111),
52 .umac_clock_reg_config = cpu_to_le16(0x48),
53 .qspi_uart_clock_reg_config = cpu_to_le16(0x1211)
54 }
55 },
56 {
57 .pll_config_g = {
58 .tapll_info_g = {
59 .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_20 << 8)|
60 (TA_PLL_M_VAL_20)),
61 .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_20),
62 },
63 .pll960_info_g = {
64 .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_20 << 8)|
65 (PLL960_N_VAL_20)),
66 .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_20),
67 .pll_reg_3 = 0x0,
68 },
69 .afepll_info_g = {
70 .pll_reg = cpu_to_le16(0x9f0),
71 }
72 },
73 .switch_clk_g = {
74 .switch_clk_info = 0x0,
75 .bbp_lmac_clk_reg_val = 0x0,
76 .umac_clock_reg_config = 0x0,
77 .qspi_uart_clock_reg_config = 0x0
78 }
79 },
80 {
81 .pll_config_g = {
82 .tapll_info_g = {
83 .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_20 << 8)|
84 (TA_PLL_M_VAL_20)),
85 .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_20),
86 },
87 .pll960_info_g = {
88 .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_20 << 8)|
89 (PLL960_N_VAL_20)),
90 .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_20),
91 .pll_reg_3 = 0x0,
92 },
93 .afepll_info_g = {
94 .pll_reg = cpu_to_le16(0x9f0),
95 }
96 },
97 .switch_clk_g = {
98 .switch_clk_info = 0x0,
99 .bbp_lmac_clk_reg_val = 0x0,
100 .umac_clock_reg_config = 0x0,
101 .qspi_uart_clock_reg_config = 0x0
102 }
103 } },
104 .buckboost_wakeup_cnt = 0x0,
105 .pmu_wakeup_wait = 0x0,
106 .shutdown_wait_time = 0x0,
107 .pmu_slp_clkout_sel = 0x0,
108 .wdt_prog_value = 0x0,
109 .wdt_soc_rst_delay = 0x0,
110 .dcdc_operation_mode = 0x0,
111 .soc_reset_wait_cnt = 0x0,
112 .waiting_time_at_fresh_sleep = 0x0,
113 .max_threshold_to_avoid_sleep = 0x0,
114 .beacon_resedue_alg_en = 0,
115};
116
117static struct bootup_params boot_params_40 = {
118 .magic_number = cpu_to_le16(0x5aa5),
119 .crystal_good_time = 0x0,
120 .valid = cpu_to_le32(VALID_40),
121 .reserved_for_valids = 0x0,
122 .bootup_mode_info = 0x0,
123 .digital_loop_back_params = 0x0,
124 .rtls_timestamp_en = 0x0,
125 .host_spi_intr_cfg = 0x0,
126 .device_clk_info = {{
127 .pll_config_g = {
128 .tapll_info_g = {
129 .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_40 << 8)|
130 (TA_PLL_M_VAL_40)),
131 .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_40),
132 },
133 .pll960_info_g = {
134 .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_40 << 8)|
135 (PLL960_N_VAL_40)),
136 .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_40),
137 .pll_reg_3 = 0x0,
138 },
139 .afepll_info_g = {
140 .pll_reg = cpu_to_le16(0x9f0),
141 }
142 },
143 .switch_clk_g = {
144 .switch_clk_info = cpu_to_le16(0x09),
145 .bbp_lmac_clk_reg_val = cpu_to_le16(0x1121),
146 .umac_clock_reg_config = cpu_to_le16(0x48),
147 .qspi_uart_clock_reg_config = cpu_to_le16(0x1211)
148 }
149 },
150 {
151 .pll_config_g = {
152 .tapll_info_g = {
153 .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_40 << 8)|
154 (TA_PLL_M_VAL_40)),
155 .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_40),
156 },
157 .pll960_info_g = {
158 .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_40 << 8)|
159 (PLL960_N_VAL_40)),
160 .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_40),
161 .pll_reg_3 = 0x0,
162 },
163 .afepll_info_g = {
164 .pll_reg = cpu_to_le16(0x9f0),
165 }
166 },
167 .switch_clk_g = {
168 .switch_clk_info = 0x0,
169 .bbp_lmac_clk_reg_val = 0x0,
170 .umac_clock_reg_config = 0x0,
171 .qspi_uart_clock_reg_config = 0x0
172 }
173 },
174 {
175 .pll_config_g = {
176 .tapll_info_g = {
177 .pll_reg_1 = cpu_to_le16((TA_PLL_N_VAL_40 << 8)|
178 (TA_PLL_M_VAL_40)),
179 .pll_reg_2 = cpu_to_le16(TA_PLL_P_VAL_40),
180 },
181 .pll960_info_g = {
182 .pll_reg_1 = cpu_to_le16((PLL960_P_VAL_40 << 8)|
183 (PLL960_N_VAL_40)),
184 .pll_reg_2 = cpu_to_le16(PLL960_M_VAL_40),
185 .pll_reg_3 = 0x0,
186 },
187 .afepll_info_g = {
188 .pll_reg = cpu_to_le16(0x9f0),
189 }
190 },
191 .switch_clk_g = {
192 .switch_clk_info = 0x0,
193 .bbp_lmac_clk_reg_val = 0x0,
194 .umac_clock_reg_config = 0x0,
195 .qspi_uart_clock_reg_config = 0x0
196 }
197 } },
198 .buckboost_wakeup_cnt = 0x0,
199 .pmu_wakeup_wait = 0x0,
200 .shutdown_wait_time = 0x0,
201 .pmu_slp_clkout_sel = 0x0,
202 .wdt_prog_value = 0x0,
203 .wdt_soc_rst_delay = 0x0,
204 .dcdc_operation_mode = 0x0,
205 .soc_reset_wait_cnt = 0x0,
206 .waiting_time_at_fresh_sleep = 0x0,
207 .max_threshold_to_avoid_sleep = 0x0,
208 .beacon_resedue_alg_en = 0,
209};
210
211static u16 mcs[] = {13, 26, 39, 52, 78, 104, 117, 130};
212
213/**
214 * rsi_set_default_parameters() - This function sets default parameters.
215 * @common: Pointer to the driver private structure.
216 *
217 * Return: none
218 */
219static void rsi_set_default_parameters(struct rsi_common *common)
220{
221 common->band = NL80211_BAND_2GHZ;
222 common->channel_width = BW_20MHZ;
223 common->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
224 common->channel = 1;
225 common->min_rate = 0xffff;
226 common->fsm_state = FSM_CARD_NOT_READY;
227 common->iface_down = true;
228 common->endpoint = EP_2GHZ_20MHZ;
229 common->driver_mode = 1; /* End to end mode */
230 common->lp_ps_handshake_mode = 0; /* Default no handShake mode*/
231 common->ulp_ps_handshake_mode = 2; /* Default PKT handShake mode*/
232 common->rf_power_val = 0; /* Default 1.9V */
233 common->wlan_rf_power_mode = 0;
234 common->obm_ant_sel_val = 2;
235 common->beacon_interval = RSI_BEACON_INTERVAL;
236 common->dtim_cnt = RSI_DTIM_COUNT;
237}
238
239/**
240 * rsi_set_contention_vals() - This function sets the contention values for the
241 * backoff procedure.
242 * @common: Pointer to the driver private structure.
243 *
244 * Return: None.
245 */
246static void rsi_set_contention_vals(struct rsi_common *common)
247{
248 u8 ii = 0;
249
250 for (; ii < NUM_EDCA_QUEUES; ii++) {
251 common->tx_qinfo[ii].wme_params =
252 (((common->edca_params[ii].cw_min / 2) +
253 (common->edca_params[ii].aifs)) *
254 WMM_SHORT_SLOT_TIME + SIFS_DURATION);
255 common->tx_qinfo[ii].weight = common->tx_qinfo[ii].wme_params;
256 common->tx_qinfo[ii].pkt_contended = 0;
257 }
258}
259
260/**
261 * rsi_send_internal_mgmt_frame() - This function sends management frames to
262 * firmware.Also schedules packet to queue
263 * for transmission.
264 * @common: Pointer to the driver private structure.
265 * @skb: Pointer to the socket buffer structure.
266 *
267 * Return: 0 on success, -1 on failure.
268 */
269static int rsi_send_internal_mgmt_frame(struct rsi_common *common,
270 struct sk_buff *skb)
271{
272 struct skb_info *tx_params;
273 struct rsi_cmd_desc *desc;
274
275 if (skb == NULL) {
276 rsi_dbg(ERR_ZONE, "%s: Unable to allocate skb\n", __func__);
277 return -ENOMEM;
278 }
279 desc = (struct rsi_cmd_desc *)skb->data;
280 desc->desc_dword0.len_qno |= cpu_to_le16(DESC_IMMEDIATE_WAKEUP);
281 skb->priority = MGMT_SOFT_Q;
282 tx_params = (struct skb_info *)&IEEE80211_SKB_CB(skb)->driver_data;
283 tx_params->flags |= INTERNAL_MGMT_PKT;
284 skb_queue_tail(&common->tx_queue[MGMT_SOFT_Q], skb);
285 rsi_set_event(&common->tx_thread.event);
286 return 0;
287}
288
289/**
290 * rsi_load_radio_caps() - This function is used to send radio capabilities
291 * values to firmware.
292 * @common: Pointer to the driver private structure.
293 *
294 * Return: 0 on success, corresponding negative error code on failure.
295 */
296static int rsi_load_radio_caps(struct rsi_common *common)
297{
298 struct rsi_radio_caps *radio_caps;
299 struct rsi_hw *adapter = common->priv;
300 u16 inx = 0;
301 u8 ii;
302 u8 radio_id = 0;
303 u16 gc[20] = {0xf0, 0xf0, 0xf0, 0xf0,
304 0xf0, 0xf0, 0xf0, 0xf0,
305 0xf0, 0xf0, 0xf0, 0xf0,
306 0xf0, 0xf0, 0xf0, 0xf0,
307 0xf0, 0xf0, 0xf0, 0xf0};
308 struct sk_buff *skb;
309 u16 frame_len = sizeof(struct rsi_radio_caps);
310
311 rsi_dbg(INFO_ZONE, "%s: Sending rate symbol req frame\n", __func__);
312
313 skb = dev_alloc_skb(frame_len);
314
315 if (!skb) {
316 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
317 __func__);
318 return -ENOMEM;
319 }
320
321 memset(skb->data, 0, frame_len);
322 radio_caps = (struct rsi_radio_caps *)skb->data;
323
324 radio_caps->desc_dword0.frame_type = RADIO_CAPABILITIES;
325 radio_caps->channel_num = common->channel;
326 radio_caps->rf_model = RSI_RF_TYPE;
327
328 if (common->channel_width == BW_40MHZ) {
329 radio_caps->radio_cfg_info = RSI_LMAC_CLOCK_80MHZ;
330 radio_caps->radio_cfg_info |= RSI_ENABLE_40MHZ;
331
332 if (common->fsm_state == FSM_MAC_INIT_DONE) {
333 struct ieee80211_hw *hw = adapter->hw;
334 struct ieee80211_conf *conf = &hw->conf;
335
336 if (conf_is_ht40_plus(conf)) {
337 radio_caps->radio_cfg_info =
338 RSI_CMDDESC_LOWER_20_ENABLE;
339 radio_caps->radio_info =
340 RSI_CMDDESC_LOWER_20_ENABLE;
341 } else if (conf_is_ht40_minus(conf)) {
342 radio_caps->radio_cfg_info =
343 RSI_CMDDESC_UPPER_20_ENABLE;
344 radio_caps->radio_info =
345 RSI_CMDDESC_UPPER_20_ENABLE;
346 } else {
347 radio_caps->radio_cfg_info =
348 RSI_CMDDESC_40MHZ;
349 radio_caps->radio_info =
350 RSI_CMDDESC_FULL_40_ENABLE;
351 }
352 }
353 }
354 radio_caps->radio_info |= radio_id;
355
356 radio_caps->sifs_tx_11n = cpu_to_le16(SIFS_TX_11N_VALUE);
357 radio_caps->sifs_tx_11b = cpu_to_le16(SIFS_TX_11B_VALUE);
358 radio_caps->slot_rx_11n = cpu_to_le16(SHORT_SLOT_VALUE);
359 radio_caps->ofdm_ack_tout = cpu_to_le16(OFDM_ACK_TOUT_VALUE);
360 radio_caps->cck_ack_tout = cpu_to_le16(CCK_ACK_TOUT_VALUE);
361 radio_caps->preamble_type = cpu_to_le16(LONG_PREAMBLE);
362
363 for (ii = 0; ii < MAX_HW_QUEUES; ii++) {
364 radio_caps->qos_params[ii].cont_win_min_q = cpu_to_le16(3);
365 radio_caps->qos_params[ii].cont_win_max_q = cpu_to_le16(0x3f);
366 radio_caps->qos_params[ii].aifsn_val_q = cpu_to_le16(2);
367 radio_caps->qos_params[ii].txop_q = 0;
368 }
369
370 for (ii = 0; ii < NUM_EDCA_QUEUES; ii++) {
371 radio_caps->qos_params[ii].cont_win_min_q =
372 cpu_to_le16(common->edca_params[ii].cw_min);
373 radio_caps->qos_params[ii].cont_win_max_q =
374 cpu_to_le16(common->edca_params[ii].cw_max);
375 radio_caps->qos_params[ii].aifsn_val_q =
376 cpu_to_le16((common->edca_params[ii].aifs) << 8);
377 radio_caps->qos_params[ii].txop_q =
378 cpu_to_le16(common->edca_params[ii].txop);
379 }
380
381 radio_caps->qos_params[BROADCAST_HW_Q].txop_q = cpu_to_le16(0xffff);
382 radio_caps->qos_params[MGMT_HW_Q].txop_q = 0;
383 radio_caps->qos_params[BEACON_HW_Q].txop_q = cpu_to_le16(0xffff);
384
385 memcpy(&common->rate_pwr[0], &gc[0], 40);
386 for (ii = 0; ii < 20; ii++)
387 radio_caps->gcpd_per_rate[inx++] =
388 cpu_to_le16(common->rate_pwr[ii] & 0x00FF);
389
390 rsi_set_len_qno(&radio_caps->desc_dword0.len_qno,
391 (frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q);
392
393 skb_put(skb, frame_len);
394
395 return rsi_send_internal_mgmt_frame(common, skb);
396}
397
398/**
399 * rsi_mgmt_pkt_to_core() - This function is the entry point for Mgmt module.
400 * @common: Pointer to the driver private structure.
401 * @msg: Pointer to received packet.
402 * @msg_len: Length of the recieved packet.
403 * @type: Type of recieved packet.
404 *
405 * Return: 0 on success, -1 on failure.
406 */
407static int rsi_mgmt_pkt_to_core(struct rsi_common *common,
408 u8 *msg,
409 s32 msg_len)
410{
411 struct rsi_hw *adapter = common->priv;
412 struct ieee80211_tx_info *info;
413 struct skb_info *rx_params;
414 u8 pad_bytes = msg[4];
415 struct sk_buff *skb;
416
417 if (!adapter->sc_nvifs)
418 return -ENOLINK;
419
420 msg_len -= pad_bytes;
421 if (msg_len <= 0) {
422 rsi_dbg(MGMT_RX_ZONE,
423 "%s: Invalid rx msg of len = %d\n",
424 __func__, msg_len);
425 return -EINVAL;
426 }
427
428 skb = dev_alloc_skb(msg_len);
429 if (!skb)
430 return -ENOMEM;
431
432 skb_put_data(skb,
433 (u8 *)(msg + FRAME_DESC_SZ + pad_bytes),
434 msg_len);
435
436 info = IEEE80211_SKB_CB(skb);
437 rx_params = (struct skb_info *)info->driver_data;
438 rx_params->rssi = rsi_get_rssi(msg);
439 rx_params->channel = rsi_get_channel(msg);
440 rsi_indicate_pkt_to_os(common, skb);
441
442 return 0;
443}
444
445/**
446 * rsi_hal_send_sta_notify_frame() - This function sends the station notify
447 * frame to firmware.
448 * @common: Pointer to the driver private structure.
449 * @opmode: Operating mode of device.
450 * @notify_event: Notification about station connection.
451 * @bssid: bssid.
452 * @qos_enable: Qos is enabled.
453 * @aid: Aid (unique for all STA).
454 *
455 * Return: status: 0 on success, corresponding negative error code on failure.
456 */
457static int rsi_hal_send_sta_notify_frame(struct rsi_common *common,
458 enum opmode opmode,
459 u8 notify_event,
460 const unsigned char *bssid,
461 u8 qos_enable,
462 u16 aid,
463 u16 sta_id,
464 struct ieee80211_vif *vif)
465{
466 struct sk_buff *skb = NULL;
467 struct rsi_peer_notify *peer_notify;
468 u16 vap_id = ((struct vif_priv *)vif->drv_priv)->vap_id;
469 int status;
470 u16 frame_len = sizeof(struct rsi_peer_notify);
471
472 rsi_dbg(MGMT_TX_ZONE, "%s: Sending sta notify frame\n", __func__);
473
474 skb = dev_alloc_skb(frame_len);
475
476 if (!skb) {
477 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
478 __func__);
479 return -ENOMEM;
480 }
481
482 memset(skb->data, 0, frame_len);
483 peer_notify = (struct rsi_peer_notify *)skb->data;
484
485 if (opmode == RSI_OPMODE_STA)
486 peer_notify->command = cpu_to_le16(PEER_TYPE_AP << 1);
487 else if (opmode == RSI_OPMODE_AP)
488 peer_notify->command = cpu_to_le16(PEER_TYPE_STA << 1);
489
490 switch (notify_event) {
491 case STA_CONNECTED:
492 peer_notify->command |= cpu_to_le16(RSI_ADD_PEER);
493 break;
494 case STA_DISCONNECTED:
495 peer_notify->command |= cpu_to_le16(RSI_DELETE_PEER);
496 break;
497 default:
498 break;
499 }
500
501 peer_notify->command |= cpu_to_le16((aid & 0xfff) << 4);
502 ether_addr_copy(peer_notify->mac_addr, bssid);
503 peer_notify->mpdu_density = cpu_to_le16(RSI_MPDU_DENSITY);
504 peer_notify->sta_flags = cpu_to_le32((qos_enable) ? 1 : 0);
505
506 rsi_set_len_qno(&peer_notify->desc.desc_dword0.len_qno,
507 (frame_len - FRAME_DESC_SZ),
508 RSI_WIFI_MGMT_Q);
509 peer_notify->desc.desc_dword0.frame_type = PEER_NOTIFY;
510 peer_notify->desc.desc_dword3.qid_tid = sta_id;
511 peer_notify->desc.desc_dword3.sta_id = vap_id;
512
513 skb_put(skb, frame_len);
514
515 status = rsi_send_internal_mgmt_frame(common, skb);
516
517 if ((vif->type == NL80211_IFTYPE_STATION) &&
518 (!status && qos_enable)) {
519 rsi_set_contention_vals(common);
520 status = rsi_load_radio_caps(common);
521 }
522 return status;
523}
524
525/**
526 * rsi_send_aggregation_params_frame() - This function sends the ampdu
527 * indication frame to firmware.
528 * @common: Pointer to the driver private structure.
529 * @tid: traffic identifier.
530 * @ssn: ssn.
531 * @buf_size: buffer size.
532 * @event: notification about station connection.
533 *
534 * Return: 0 on success, corresponding negative error code on failure.
535 */
536int rsi_send_aggregation_params_frame(struct rsi_common *common,
537 u16 tid,
538 u16 ssn,
539 u8 buf_size,
540 u8 event,
541 u8 sta_id)
542{
543 struct sk_buff *skb = NULL;
544 struct rsi_aggr_params *aggr_params;
545 u16 frame_len = sizeof(struct rsi_aggr_params);
546
547 skb = dev_alloc_skb(frame_len);
548
549 if (!skb) {
550 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
551 __func__);
552 return -ENOMEM;
553 }
554
555 memset(skb->data, 0, frame_len);
556 aggr_params = (struct rsi_aggr_params *)skb->data;
557
558 rsi_dbg(MGMT_TX_ZONE, "%s: Sending AMPDU indication frame\n", __func__);
559
560 rsi_set_len_qno(&aggr_params->desc_dword0.len_qno, 0, RSI_WIFI_MGMT_Q);
561 aggr_params->desc_dword0.frame_type = AMPDU_IND;
562
563 aggr_params->aggr_params = tid & RSI_AGGR_PARAMS_TID_MASK;
564 aggr_params->peer_id = sta_id;
565 if (event == STA_TX_ADDBA_DONE) {
566 aggr_params->seq_start = cpu_to_le16(ssn);
567 aggr_params->baw_size = cpu_to_le16(buf_size);
568 aggr_params->aggr_params |= RSI_AGGR_PARAMS_START;
569 } else if (event == STA_RX_ADDBA_DONE) {
570 aggr_params->seq_start = cpu_to_le16(ssn);
571 aggr_params->aggr_params |= (RSI_AGGR_PARAMS_START |
572 RSI_AGGR_PARAMS_RX_AGGR);
573 } else if (event == STA_RX_DELBA) {
574 aggr_params->aggr_params |= RSI_AGGR_PARAMS_RX_AGGR;
575 }
576
577 skb_put(skb, frame_len);
578
579 return rsi_send_internal_mgmt_frame(common, skb);
580}
581
582/**
583 * rsi_program_bb_rf() - This function starts base band and RF programming.
584 * This is called after initial configurations are done.
585 * @common: Pointer to the driver private structure.
586 *
587 * Return: 0 on success, corresponding negative error code on failure.
588 */
589static int rsi_program_bb_rf(struct rsi_common *common)
590{
591 struct sk_buff *skb;
592 struct rsi_bb_rf_prog *bb_rf_prog;
593 u16 frame_len = sizeof(struct rsi_bb_rf_prog);
594
595 rsi_dbg(MGMT_TX_ZONE, "%s: Sending program BB/RF frame\n", __func__);
596
597 skb = dev_alloc_skb(frame_len);
598 if (!skb) {
599 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
600 __func__);
601 return -ENOMEM;
602 }
603
604 memset(skb->data, 0, frame_len);
605 bb_rf_prog = (struct rsi_bb_rf_prog *)skb->data;
606
607 rsi_set_len_qno(&bb_rf_prog->desc_dword0.len_qno, 0, RSI_WIFI_MGMT_Q);
608 bb_rf_prog->desc_dword0.frame_type = BBP_PROG_IN_TA;
609 bb_rf_prog->endpoint = common->endpoint;
610 bb_rf_prog->rf_power_mode = common->wlan_rf_power_mode;
611
612 if (common->rf_reset) {
613 bb_rf_prog->flags = cpu_to_le16(RF_RESET_ENABLE);
614 rsi_dbg(MGMT_TX_ZONE, "%s: ===> RF RESET REQUEST SENT <===\n",
615 __func__);
616 common->rf_reset = 0;
617 }
618 common->bb_rf_prog_count = 1;
619 bb_rf_prog->flags |= cpu_to_le16(PUT_BBP_RESET | BBP_REG_WRITE |
620 (RSI_RF_TYPE << 4));
621 skb_put(skb, frame_len);
622
623 return rsi_send_internal_mgmt_frame(common, skb);
624}
625
626/**
627 * rsi_set_vap_capabilities() - This function send vap capability to firmware.
628 * @common: Pointer to the driver private structure.
629 * @opmode: Operating mode of device.
630 *
631 * Return: 0 on success, corresponding negative error code on failure.
632 */
633int rsi_set_vap_capabilities(struct rsi_common *common,
634 enum opmode mode,
635 u8 *mac_addr,
636 u8 vap_id,
637 u8 vap_status)
638{
639 struct sk_buff *skb = NULL;
640 struct rsi_vap_caps *vap_caps;
641 struct rsi_hw *adapter = common->priv;
642 struct ieee80211_hw *hw = adapter->hw;
643 struct ieee80211_conf *conf = &hw->conf;
644 u16 frame_len = sizeof(struct rsi_vap_caps);
645
646 rsi_dbg(MGMT_TX_ZONE, "%s: Sending VAP capabilities frame\n", __func__);
647
648 skb = dev_alloc_skb(frame_len);
649 if (!skb) {
650 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
651 __func__);
652 return -ENOMEM;
653 }
654
655 memset(skb->data, 0, frame_len);
656 vap_caps = (struct rsi_vap_caps *)skb->data;
657
658 rsi_set_len_qno(&vap_caps->desc_dword0.len_qno,
659 (frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q);
660 vap_caps->desc_dword0.frame_type = VAP_CAPABILITIES;
661 vap_caps->status = vap_status;
662 vap_caps->vif_type = mode;
663 vap_caps->channel_bw = common->channel_width;
664 vap_caps->vap_id = vap_id;
665 vap_caps->radioid_macid = ((common->mac_id & 0xf) << 4) |
666 (common->radio_id & 0xf);
667
668 memcpy(vap_caps->mac_addr, mac_addr, IEEE80211_ADDR_LEN);
669 vap_caps->keep_alive_period = cpu_to_le16(90);
670 vap_caps->frag_threshold = cpu_to_le16(IEEE80211_MAX_FRAG_THRESHOLD);
671
672 vap_caps->rts_threshold = cpu_to_le16(common->rts_threshold);
673
674 if (common->band == NL80211_BAND_5GHZ) {
675 vap_caps->default_ctrl_rate = cpu_to_le16(RSI_RATE_6);
676 vap_caps->default_mgmt_rate = cpu_to_le32(RSI_RATE_6);
677 } else {
678 vap_caps->default_ctrl_rate = cpu_to_le16(RSI_RATE_1);
679 vap_caps->default_mgmt_rate = cpu_to_le32(RSI_RATE_1);
680 }
681 if (conf_is_ht40(conf)) {
682 if (conf_is_ht40_minus(conf))
683 vap_caps->ctrl_rate_flags =
684 cpu_to_le16(UPPER_20_ENABLE);
685 else if (conf_is_ht40_plus(conf))
686 vap_caps->ctrl_rate_flags =
687 cpu_to_le16(LOWER_20_ENABLE);
688 else
689 vap_caps->ctrl_rate_flags =
690 cpu_to_le16(FULL40M_ENABLE);
691 }
692
693 vap_caps->default_data_rate = 0;
694 vap_caps->beacon_interval = cpu_to_le16(common->beacon_interval);
695 vap_caps->dtim_period = cpu_to_le16(common->dtim_cnt);
696
697 skb_put(skb, frame_len);
698
699 return rsi_send_internal_mgmt_frame(common, skb);
700}
701
702/**
703 * rsi_hal_load_key() - This function is used to load keys within the firmware.
704 * @common: Pointer to the driver private structure.
705 * @data: Pointer to the key data.
706 * @key_len: Key length to be loaded.
707 * @key_type: Type of key: GROUP/PAIRWISE.
708 * @key_id: Key index.
709 * @cipher: Type of cipher used.
710 *
711 * Return: 0 on success, -1 on failure.
712 */
713int rsi_hal_load_key(struct rsi_common *common,
714 u8 *data,
715 u16 key_len,
716 u8 key_type,
717 u8 key_id,
718 u32 cipher,
719 s16 sta_id,
720 struct ieee80211_vif *vif)
721{
722 struct sk_buff *skb = NULL;
723 struct rsi_set_key *set_key;
724 u16 key_descriptor = 0;
725 u16 frame_len = sizeof(struct rsi_set_key);
726
727 rsi_dbg(MGMT_TX_ZONE, "%s: Sending load key frame\n", __func__);
728
729 skb = dev_alloc_skb(frame_len);
730 if (!skb) {
731 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
732 __func__);
733 return -ENOMEM;
734 }
735
736 memset(skb->data, 0, frame_len);
737 set_key = (struct rsi_set_key *)skb->data;
738
739 if (key_type == RSI_GROUP_KEY) {
740 key_descriptor = RSI_KEY_TYPE_BROADCAST;
741 if (vif->type == NL80211_IFTYPE_AP)
742 key_descriptor |= RSI_KEY_MODE_AP;
743 }
744 if ((cipher == WLAN_CIPHER_SUITE_WEP40) ||
745 (cipher == WLAN_CIPHER_SUITE_WEP104)) {
746 key_id = 0;
747 key_descriptor |= RSI_WEP_KEY;
748 if (key_len >= 13)
749 key_descriptor |= RSI_WEP_KEY_104;
750 } else if (cipher != KEY_TYPE_CLEAR) {
751 key_descriptor |= RSI_CIPHER_WPA;
752 if (cipher == WLAN_CIPHER_SUITE_TKIP)
753 key_descriptor |= RSI_CIPHER_TKIP;
754 }
755 key_descriptor |= RSI_PROTECT_DATA_FRAMES;
756 key_descriptor |= ((key_id << RSI_KEY_ID_OFFSET) & RSI_KEY_ID_MASK);
757
758 rsi_set_len_qno(&set_key->desc_dword0.len_qno,
759 (frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q);
760 set_key->desc_dword0.frame_type = SET_KEY_REQ;
761 set_key->key_desc = cpu_to_le16(key_descriptor);
762 set_key->sta_id = sta_id;
763
764 if (data) {
765 if ((cipher == WLAN_CIPHER_SUITE_WEP40) ||
766 (cipher == WLAN_CIPHER_SUITE_WEP104)) {
767 memcpy(&set_key->key[key_id][1], data, key_len * 2);
768 } else {
769 memcpy(&set_key->key[0][0], data, key_len);
770 }
771 memcpy(set_key->tx_mic_key, &data[16], 8);
772 memcpy(set_key->rx_mic_key, &data[24], 8);
773 } else {
774 memset(&set_key[FRAME_DESC_SZ], 0, frame_len - FRAME_DESC_SZ);
775 }
776
777 skb_put(skb, frame_len);
778
779 return rsi_send_internal_mgmt_frame(common, skb);
780}
781
782/*
783 * This function sends the common device configuration parameters to device.
784 * This frame includes the useful information to make device works on
785 * specific operating mode.
786 */
787static int rsi_send_common_dev_params(struct rsi_common *common)
788{
789 struct sk_buff *skb;
790 u16 frame_len;
791 struct rsi_config_vals *dev_cfgs;
792
793 frame_len = sizeof(struct rsi_config_vals);
794
795 rsi_dbg(MGMT_TX_ZONE, "Sending common device config params\n");
796 skb = dev_alloc_skb(frame_len);
797 if (!skb) {
798 rsi_dbg(ERR_ZONE, "%s: Unable to allocate skb\n", __func__);
799 return -ENOMEM;
800 }
801
802 memset(skb->data, 0, frame_len);
803
804 dev_cfgs = (struct rsi_config_vals *)skb->data;
805 memset(dev_cfgs, 0, (sizeof(struct rsi_config_vals)));
806
807 rsi_set_len_qno(&dev_cfgs->len_qno, (frame_len - FRAME_DESC_SZ),
808 RSI_COEX_Q);
809 dev_cfgs->pkt_type = COMMON_DEV_CONFIG;
810
811 dev_cfgs->lp_ps_handshake = common->lp_ps_handshake_mode;
812 dev_cfgs->ulp_ps_handshake = common->ulp_ps_handshake_mode;
813
814 dev_cfgs->unused_ulp_gpio = RSI_UNUSED_ULP_GPIO_BITMAP;
815 dev_cfgs->unused_soc_gpio_bitmap =
816 cpu_to_le32(RSI_UNUSED_SOC_GPIO_BITMAP);
817
818 dev_cfgs->opermode = common->oper_mode;
819 dev_cfgs->wlan_rf_pwr_mode = common->wlan_rf_power_mode;
820 dev_cfgs->driver_mode = common->driver_mode;
821 dev_cfgs->region_code = NL80211_DFS_FCC;
822 dev_cfgs->antenna_sel_val = common->obm_ant_sel_val;
823
824 skb_put(skb, frame_len);
825
826 return rsi_send_internal_mgmt_frame(common, skb);
827}
828
829/*
830 * rsi_load_bootup_params() - This function send bootup params to the firmware.
831 * @common: Pointer to the driver private structure.
832 *
833 * Return: 0 on success, corresponding error code on failure.
834 */
835static int rsi_load_bootup_params(struct rsi_common *common)
836{
837 struct sk_buff *skb;
838 struct rsi_boot_params *boot_params;
839
840 rsi_dbg(MGMT_TX_ZONE, "%s: Sending boot params frame\n", __func__);
841 skb = dev_alloc_skb(sizeof(struct rsi_boot_params));
842 if (!skb) {
843 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
844 __func__);
845 return -ENOMEM;
846 }
847
848 memset(skb->data, 0, sizeof(struct rsi_boot_params));
849 boot_params = (struct rsi_boot_params *)skb->data;
850
851 rsi_dbg(MGMT_TX_ZONE, "%s:\n", __func__);
852
853 if (common->channel_width == BW_40MHZ) {
854 memcpy(&boot_params->bootup_params,
855 &boot_params_40,
856 sizeof(struct bootup_params));
857 rsi_dbg(MGMT_TX_ZONE, "%s: Packet 40MHZ <=== %d\n", __func__,
858 UMAC_CLK_40BW);
859 boot_params->desc_word[7] = cpu_to_le16(UMAC_CLK_40BW);
860 } else {
861 memcpy(&boot_params->bootup_params,
862 &boot_params_20,
863 sizeof(struct bootup_params));
864 if (boot_params_20.valid != cpu_to_le32(VALID_20)) {
865 boot_params->desc_word[7] = cpu_to_le16(UMAC_CLK_20BW);
866 rsi_dbg(MGMT_TX_ZONE,
867 "%s: Packet 20MHZ <=== %d\n", __func__,
868 UMAC_CLK_20BW);
869 } else {
870 boot_params->desc_word[7] = cpu_to_le16(UMAC_CLK_40MHZ);
871 rsi_dbg(MGMT_TX_ZONE,
872 "%s: Packet 20MHZ <=== %d\n", __func__,
873 UMAC_CLK_40MHZ);
874 }
875 }
876
877 /**
878 * Bit{0:11} indicates length of the Packet
879 * Bit{12:15} indicates host queue number
880 */
881 boot_params->desc_word[0] = cpu_to_le16(sizeof(struct bootup_params) |
882 (RSI_WIFI_MGMT_Q << 12));
883 boot_params->desc_word[1] = cpu_to_le16(BOOTUP_PARAMS_REQUEST);
884
885 skb_put(skb, sizeof(struct rsi_boot_params));
886
887 return rsi_send_internal_mgmt_frame(common, skb);
888}
889
890/**
891 * rsi_send_reset_mac() - This function prepares reset MAC request and sends an
892 * internal management frame to indicate it to firmware.
893 * @common: Pointer to the driver private structure.
894 *
895 * Return: 0 on success, corresponding error code on failure.
896 */
897static int rsi_send_reset_mac(struct rsi_common *common)
898{
899 struct sk_buff *skb;
900 struct rsi_mac_frame *mgmt_frame;
901
902 rsi_dbg(MGMT_TX_ZONE, "%s: Sending reset MAC frame\n", __func__);
903
904 skb = dev_alloc_skb(FRAME_DESC_SZ);
905 if (!skb) {
906 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
907 __func__);
908 return -ENOMEM;
909 }
910
911 memset(skb->data, 0, FRAME_DESC_SZ);
912 mgmt_frame = (struct rsi_mac_frame *)skb->data;
913
914 mgmt_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12);
915 mgmt_frame->desc_word[1] = cpu_to_le16(RESET_MAC_REQ);
916 mgmt_frame->desc_word[4] = cpu_to_le16(RETRY_COUNT << 8);
917
918 skb_put(skb, FRAME_DESC_SZ);
919
920 return rsi_send_internal_mgmt_frame(common, skb);
921}
922
923/**
924 * rsi_band_check() - This function programs the band
925 * @common: Pointer to the driver private structure.
926 *
927 * Return: 0 on success, corresponding error code on failure.
928 */
929int rsi_band_check(struct rsi_common *common,
930 struct ieee80211_channel *curchan)
931{
932 struct rsi_hw *adapter = common->priv;
933 struct ieee80211_hw *hw = adapter->hw;
934 u8 prev_bw = common->channel_width;
935 u8 prev_ep = common->endpoint;
936 int status = 0;
937
938 if (common->band != curchan->band) {
939 common->rf_reset = 1;
940 common->band = curchan->band;
941 }
942
943 if ((hw->conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) ||
944 (hw->conf.chandef.width == NL80211_CHAN_WIDTH_20))
945 common->channel_width = BW_20MHZ;
946 else
947 common->channel_width = BW_40MHZ;
948
949 if (common->band == NL80211_BAND_2GHZ) {
950 if (common->channel_width)
951 common->endpoint = EP_2GHZ_40MHZ;
952 else
953 common->endpoint = EP_2GHZ_20MHZ;
954 } else {
955 if (common->channel_width)
956 common->endpoint = EP_5GHZ_40MHZ;
957 else
958 common->endpoint = EP_5GHZ_20MHZ;
959 }
960
961 if (common->endpoint != prev_ep) {
962 status = rsi_program_bb_rf(common);
963 if (status)
964 return status;
965 }
966
967 if (common->channel_width != prev_bw) {
968 status = rsi_load_bootup_params(common);
969 if (status)
970 return status;
971
972 status = rsi_load_radio_caps(common);
973 if (status)
974 return status;
975 }
976
977 return status;
978}
979
980/**
981 * rsi_set_channel() - This function programs the channel.
982 * @common: Pointer to the driver private structure.
983 * @channel: Channel value to be set.
984 *
985 * Return: 0 on success, corresponding error code on failure.
986 */
987int rsi_set_channel(struct rsi_common *common,
988 struct ieee80211_channel *channel)
989{
990 struct sk_buff *skb = NULL;
991 struct rsi_chan_config *chan_cfg;
992 u16 frame_len = sizeof(struct rsi_chan_config);
993
994 rsi_dbg(MGMT_TX_ZONE,
995 "%s: Sending scan req frame\n", __func__);
996
997 skb = dev_alloc_skb(frame_len);
998 if (!skb) {
999 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
1000 __func__);
1001 return -ENOMEM;
1002 }
1003
1004 if (!channel) {
1005 dev_kfree_skb(skb);
1006 return 0;
1007 }
1008 memset(skb->data, 0, frame_len);
1009 chan_cfg = (struct rsi_chan_config *)skb->data;
1010
1011 rsi_set_len_qno(&chan_cfg->desc_dword0.len_qno, 0, RSI_WIFI_MGMT_Q);
1012 chan_cfg->desc_dword0.frame_type = SCAN_REQUEST;
1013 chan_cfg->channel_number = channel->hw_value;
1014 chan_cfg->antenna_gain_offset_2g = channel->max_antenna_gain;
1015 chan_cfg->antenna_gain_offset_5g = channel->max_antenna_gain;
1016 chan_cfg->region_rftype = (RSI_RF_TYPE & 0xf) << 4;
1017
1018 if ((channel->flags & IEEE80211_CHAN_NO_IR) ||
1019 (channel->flags & IEEE80211_CHAN_RADAR)) {
1020 chan_cfg->antenna_gain_offset_2g |= RSI_CHAN_RADAR;
1021 } else {
1022 if (common->tx_power < channel->max_power)
1023 chan_cfg->tx_power = cpu_to_le16(common->tx_power);
1024 else
1025 chan_cfg->tx_power = cpu_to_le16(channel->max_power);
1026 }
1027 chan_cfg->region_rftype |= (common->priv->dfs_region & 0xf);
1028
1029 if (common->channel_width == BW_40MHZ)
1030 chan_cfg->channel_width = 0x1;
1031
1032 common->channel = channel->hw_value;
1033
1034 skb_put(skb, frame_len);
1035
1036 return rsi_send_internal_mgmt_frame(common, skb);
1037}
1038
1039/**
1040 * rsi_send_radio_params_update() - This function sends the radio
1041 * parameters update to device
1042 * @common: Pointer to the driver private structure.
1043 * @channel: Channel value to be set.
1044 *
1045 * Return: 0 on success, corresponding error code on failure.
1046 */
1047int rsi_send_radio_params_update(struct rsi_common *common)
1048{
1049 struct rsi_mac_frame *cmd_frame;
1050 struct sk_buff *skb = NULL;
1051
1052 rsi_dbg(MGMT_TX_ZONE,
1053 "%s: Sending Radio Params update frame\n", __func__);
1054
1055 skb = dev_alloc_skb(FRAME_DESC_SZ);
1056 if (!skb) {
1057 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
1058 __func__);
1059 return -ENOMEM;
1060 }
1061
1062 memset(skb->data, 0, FRAME_DESC_SZ);
1063 cmd_frame = (struct rsi_mac_frame *)skb->data;
1064
1065 cmd_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12);
1066 cmd_frame->desc_word[1] = cpu_to_le16(RADIO_PARAMS_UPDATE);
1067 cmd_frame->desc_word[3] = cpu_to_le16(BIT(0));
1068
1069 cmd_frame->desc_word[3] |= cpu_to_le16(common->tx_power << 8);
1070
1071 skb_put(skb, FRAME_DESC_SZ);
1072
1073 return rsi_send_internal_mgmt_frame(common, skb);
1074}
1075
1076/* This function programs the threshold. */
1077int rsi_send_vap_dynamic_update(struct rsi_common *common)
1078{
1079 struct sk_buff *skb;
1080 struct rsi_dynamic_s *dynamic_frame;
1081
1082 rsi_dbg(MGMT_TX_ZONE,
1083 "%s: Sending vap update indication frame\n", __func__);
1084
1085 skb = dev_alloc_skb(sizeof(struct rsi_dynamic_s));
1086 if (!skb)
1087 return -ENOMEM;
1088
1089 memset(skb->data, 0, sizeof(struct rsi_dynamic_s));
1090 dynamic_frame = (struct rsi_dynamic_s *)skb->data;
1091 rsi_set_len_qno(&dynamic_frame->desc_dword0.len_qno,
1092 sizeof(dynamic_frame->frame_body), RSI_WIFI_MGMT_Q);
1093
1094 dynamic_frame->desc_dword0.frame_type = VAP_DYNAMIC_UPDATE;
1095 dynamic_frame->desc_dword2.pkt_info =
1096 cpu_to_le32(common->rts_threshold);
1097
1098 if (common->wow_flags & RSI_WOW_ENABLED) {
1099 /* Beacon miss threshold */
1100 dynamic_frame->desc_dword3.token =
1101 cpu_to_le16(RSI_BCN_MISS_THRESHOLD);
1102 dynamic_frame->frame_body.keep_alive_period =
1103 cpu_to_le16(RSI_WOW_KEEPALIVE);
1104 } else {
1105 dynamic_frame->frame_body.keep_alive_period =
1106 cpu_to_le16(RSI_DEF_KEEPALIVE);
1107 }
1108
1109 dynamic_frame->desc_dword3.sta_id = 0; /* vap id */
1110
1111 skb_put(skb, sizeof(struct rsi_dynamic_s));
1112
1113 return rsi_send_internal_mgmt_frame(common, skb);
1114}
1115
1116/**
1117 * rsi_compare() - This function is used to compare two integers
1118 * @a: pointer to the first integer
1119 * @b: pointer to the second integer
1120 *
1121 * Return: 0 if both are equal, -1 if the first is smaller, else 1
1122 */
1123static int rsi_compare(const void *a, const void *b)
1124{
1125 u16 _a = *(const u16 *)(a);
1126 u16 _b = *(const u16 *)(b);
1127
1128 if (_a > _b)
1129 return -1;
1130
1131 if (_a < _b)
1132 return 1;
1133
1134 return 0;
1135}
1136
1137/**
1138 * rsi_map_rates() - This function is used to map selected rates to hw rates.
1139 * @rate: The standard rate to be mapped.
1140 * @offset: Offset that will be returned.
1141 *
1142 * Return: 0 if it is a mcs rate, else 1
1143 */
1144static bool rsi_map_rates(u16 rate, int *offset)
1145{
1146 int kk;
1147 for (kk = 0; kk < ARRAY_SIZE(rsi_mcsrates); kk++) {
1148 if (rate == mcs[kk]) {
1149 *offset = kk;
1150 return false;
1151 }
1152 }
1153
1154 for (kk = 0; kk < ARRAY_SIZE(rsi_rates); kk++) {
1155 if (rate == rsi_rates[kk].bitrate / 5) {
1156 *offset = kk;
1157 break;
1158 }
1159 }
1160 return true;
1161}
1162
1163/**
1164 * rsi_send_auto_rate_request() - This function is to set rates for connection
1165 * and send autorate request to firmware.
1166 * @common: Pointer to the driver private structure.
1167 *
1168 * Return: 0 on success, corresponding error code on failure.
1169 */
1170static int rsi_send_auto_rate_request(struct rsi_common *common,
1171 struct ieee80211_sta *sta,
1172 u16 sta_id,
1173 struct ieee80211_vif *vif)
1174{
1175 struct sk_buff *skb;
1176 struct rsi_auto_rate *auto_rate;
1177 int ii = 0, jj = 0, kk = 0;
1178 struct ieee80211_hw *hw = common->priv->hw;
1179 u8 band = hw->conf.chandef.chan->band;
1180 u8 num_supported_rates = 0;
1181 u8 rate_table_offset, rate_offset = 0;
1182 u32 rate_bitmap;
1183 u16 *selected_rates, min_rate;
1184 bool is_ht = false, is_sgi = false;
1185 u16 frame_len = sizeof(struct rsi_auto_rate);
1186
1187 rsi_dbg(MGMT_TX_ZONE,
1188 "%s: Sending auto rate request frame\n", __func__);
1189
1190 skb = dev_alloc_skb(frame_len);
1191 if (!skb) {
1192 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
1193 __func__);
1194 return -ENOMEM;
1195 }
1196
1197 selected_rates = kzalloc(2 * RSI_TBL_SZ, GFP_KERNEL);
1198 if (!selected_rates) {
1199 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of mem\n",
1200 __func__);
1201 dev_kfree_skb(skb);
1202 return -ENOMEM;
1203 }
1204
1205 auto_rate = (struct rsi_auto_rate *)skb->data;
1206
1207 auto_rate->aarf_rssi = cpu_to_le16(((u16)3 << 6) | (u16)(18 & 0x3f));
1208 auto_rate->collision_tolerance = cpu_to_le16(3);
1209 auto_rate->failure_limit = cpu_to_le16(3);
1210 auto_rate->initial_boundary = cpu_to_le16(3);
1211 auto_rate->max_threshold_limt = cpu_to_le16(27);
1212
1213 auto_rate->desc.desc_dword0.frame_type = AUTO_RATE_IND;
1214
1215 if (common->channel_width == BW_40MHZ)
1216 auto_rate->desc.desc_dword3.qid_tid = BW_40MHZ;
1217 auto_rate->desc.desc_dword3.sta_id = sta_id;
1218
1219 if (vif->type == NL80211_IFTYPE_STATION) {
1220 rate_bitmap = common->bitrate_mask[band];
1221 is_ht = common->vif_info[0].is_ht;
1222 is_sgi = common->vif_info[0].sgi;
1223 } else {
1224 rate_bitmap = sta->supp_rates[band];
1225 is_ht = sta->ht_cap.ht_supported;
1226 if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20) ||
1227 (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40))
1228 is_sgi = true;
1229 }
1230
1231 if (band == NL80211_BAND_2GHZ) {
1232 if ((rate_bitmap == 0) && (is_ht))
1233 min_rate = RSI_RATE_MCS0;
1234 else
1235 min_rate = RSI_RATE_1;
1236 rate_table_offset = 0;
1237 } else {
1238 if ((rate_bitmap == 0) && (is_ht))
1239 min_rate = RSI_RATE_MCS0;
1240 else
1241 min_rate = RSI_RATE_6;
1242 rate_table_offset = 4;
1243 }
1244
1245 for (ii = 0, jj = 0;
1246 ii < (ARRAY_SIZE(rsi_rates) - rate_table_offset); ii++) {
1247 if (rate_bitmap & BIT(ii)) {
1248 selected_rates[jj++] =
1249 (rsi_rates[ii + rate_table_offset].bitrate / 5);
1250 rate_offset++;
1251 }
1252 }
1253 num_supported_rates = jj;
1254
1255 if (is_ht) {
1256 for (ii = 0; ii < ARRAY_SIZE(mcs); ii++)
1257 selected_rates[jj++] = mcs[ii];
1258 num_supported_rates += ARRAY_SIZE(mcs);
1259 rate_offset += ARRAY_SIZE(mcs);
1260 }
1261
1262 sort(selected_rates, jj, sizeof(u16), &rsi_compare, NULL);
1263
1264 /* mapping the rates to RSI rates */
1265 for (ii = 0; ii < jj; ii++) {
1266 if (rsi_map_rates(selected_rates[ii], &kk)) {
1267 auto_rate->supported_rates[ii] =
1268 cpu_to_le16(rsi_rates[kk].hw_value);
1269 } else {
1270 auto_rate->supported_rates[ii] =
1271 cpu_to_le16(rsi_mcsrates[kk]);
1272 }
1273 }
1274
1275 /* loading HT rates in the bottom half of the auto rate table */
1276 if (is_ht) {
1277 for (ii = rate_offset, kk = ARRAY_SIZE(rsi_mcsrates) - 1;
1278 ii < rate_offset + 2 * ARRAY_SIZE(rsi_mcsrates); ii++) {
1279 if (is_sgi || conf_is_ht40(&common->priv->hw->conf))
1280 auto_rate->supported_rates[ii++] =
1281 cpu_to_le16(rsi_mcsrates[kk] | BIT(9));
1282 else
1283 auto_rate->supported_rates[ii++] =
1284 cpu_to_le16(rsi_mcsrates[kk]);
1285 auto_rate->supported_rates[ii] =
1286 cpu_to_le16(rsi_mcsrates[kk--]);
1287 }
1288
1289 for (; ii < (RSI_TBL_SZ - 1); ii++) {
1290 auto_rate->supported_rates[ii] =
1291 cpu_to_le16(rsi_mcsrates[0]);
1292 }
1293 }
1294
1295 for (; ii < RSI_TBL_SZ; ii++)
1296 auto_rate->supported_rates[ii] = cpu_to_le16(min_rate);
1297
1298 auto_rate->num_supported_rates = cpu_to_le16(num_supported_rates * 2);
1299 auto_rate->moderate_rate_inx = cpu_to_le16(num_supported_rates / 2);
1300 num_supported_rates *= 2;
1301
1302 rsi_set_len_qno(&auto_rate->desc.desc_dword0.len_qno,
1303 (frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q);
1304
1305 skb_put(skb, frame_len);
1306 kfree(selected_rates);
1307
1308 return rsi_send_internal_mgmt_frame(common, skb);
1309}
1310
1311/**
1312 * rsi_inform_bss_status() - This function informs about bss status with the
1313 * help of sta notify params by sending an internal
1314 * management frame to firmware.
1315 * @common: Pointer to the driver private structure.
1316 * @status: Bss status type.
1317 * @bssid: Bssid.
1318 * @qos_enable: Qos is enabled.
1319 * @aid: Aid (unique for all STAs).
1320 *
1321 * Return: None.
1322 */
1323void rsi_inform_bss_status(struct rsi_common *common,
1324 enum opmode opmode,
1325 u8 status,
1326 const u8 *addr,
1327 u8 qos_enable,
1328 u16 aid,
1329 struct ieee80211_sta *sta,
1330 u16 sta_id,
1331 struct ieee80211_vif *vif)
1332{
1333 if (status) {
1334 if (opmode == RSI_OPMODE_STA)
1335 common->hw_data_qs_blocked = true;
1336 rsi_hal_send_sta_notify_frame(common,
1337 opmode,
1338 STA_CONNECTED,
1339 addr,
1340 qos_enable,
1341 aid, sta_id,
1342 vif);
1343 if (common->min_rate == 0xffff)
1344 rsi_send_auto_rate_request(common, sta, sta_id, vif);
1345 if (opmode == RSI_OPMODE_STA) {
1346 if (!rsi_send_block_unblock_frame(common, false))
1347 common->hw_data_qs_blocked = false;
1348 }
1349 } else {
1350 if (opmode == RSI_OPMODE_STA)
1351 common->hw_data_qs_blocked = true;
1352
1353 if (!(common->wow_flags & RSI_WOW_ENABLED))
1354 rsi_hal_send_sta_notify_frame(common, opmode,
1355 STA_DISCONNECTED, addr,
1356 qos_enable, aid, sta_id,
1357 vif);
1358 if (opmode == RSI_OPMODE_STA)
1359 rsi_send_block_unblock_frame(common, true);
1360 }
1361}
1362
1363/**
1364 * rsi_eeprom_read() - This function sends a frame to read the mac address
1365 * from the eeprom.
1366 * @common: Pointer to the driver private structure.
1367 *
1368 * Return: 0 on success, -1 on failure.
1369 */
1370static int rsi_eeprom_read(struct rsi_common *common)
1371{
1372 struct rsi_eeprom_read_frame *mgmt_frame;
1373 struct rsi_hw *adapter = common->priv;
1374 struct sk_buff *skb;
1375
1376 rsi_dbg(MGMT_TX_ZONE, "%s: Sending EEPROM read req frame\n", __func__);
1377
1378 skb = dev_alloc_skb(FRAME_DESC_SZ);
1379 if (!skb) {
1380 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
1381 __func__);
1382 return -ENOMEM;
1383 }
1384
1385 memset(skb->data, 0, FRAME_DESC_SZ);
1386 mgmt_frame = (struct rsi_eeprom_read_frame *)skb->data;
1387
1388 /* FrameType */
1389 rsi_set_len_qno(&mgmt_frame->len_qno, 0, RSI_WIFI_MGMT_Q);
1390 mgmt_frame->pkt_type = EEPROM_READ;
1391
1392 /* Number of bytes to read */
1393 mgmt_frame->pkt_info =
1394 cpu_to_le32((adapter->eeprom.length << RSI_EEPROM_LEN_OFFSET) &
1395 RSI_EEPROM_LEN_MASK);
1396 mgmt_frame->pkt_info |= cpu_to_le32((3 << RSI_EEPROM_HDR_SIZE_OFFSET) &
1397 RSI_EEPROM_HDR_SIZE_MASK);
1398
1399 /* Address to read */
1400 mgmt_frame->eeprom_offset = cpu_to_le32(adapter->eeprom.offset);
1401
1402 skb_put(skb, FRAME_DESC_SZ);
1403
1404 return rsi_send_internal_mgmt_frame(common, skb);
1405}
1406
1407/**
1408 * This function sends a frame to block/unblock
1409 * data queues in the firmware
1410 *
1411 * @param common Pointer to the driver private structure.
1412 * @param block event - block if true, unblock if false
1413 * @return 0 on success, -1 on failure.
1414 */
1415int rsi_send_block_unblock_frame(struct rsi_common *common, bool block_event)
1416{
1417 struct rsi_block_unblock_data *mgmt_frame;
1418 struct sk_buff *skb;
1419
1420 rsi_dbg(MGMT_TX_ZONE, "%s: Sending block/unblock frame\n", __func__);
1421
1422 skb = dev_alloc_skb(FRAME_DESC_SZ);
1423 if (!skb) {
1424 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
1425 __func__);
1426 return -ENOMEM;
1427 }
1428
1429 memset(skb->data, 0, FRAME_DESC_SZ);
1430 mgmt_frame = (struct rsi_block_unblock_data *)skb->data;
1431
1432 rsi_set_len_qno(&mgmt_frame->desc_dword0.len_qno, 0, RSI_WIFI_MGMT_Q);
1433 mgmt_frame->desc_dword0.frame_type = BLOCK_HW_QUEUE;
1434 mgmt_frame->host_quiet_info = QUIET_INFO_VALID;
1435
1436 if (block_event) {
1437 rsi_dbg(INFO_ZONE, "blocking the data qs\n");
1438 mgmt_frame->block_q_bitmap = cpu_to_le16(0xf);
1439 mgmt_frame->block_q_bitmap |= cpu_to_le16(0xf << 4);
1440 } else {
1441 rsi_dbg(INFO_ZONE, "unblocking the data qs\n");
1442 mgmt_frame->unblock_q_bitmap = cpu_to_le16(0xf);
1443 mgmt_frame->unblock_q_bitmap |= cpu_to_le16(0xf << 4);
1444 }
1445
1446 skb_put(skb, FRAME_DESC_SZ);
1447
1448 return rsi_send_internal_mgmt_frame(common, skb);
1449}
1450
1451/**
1452 * rsi_send_rx_filter_frame() - Sends a frame to filter the RX packets
1453 *
1454 * @common: Pointer to the driver private structure.
1455 * @rx_filter_word: Flags of filter packets
1456 *
1457 * @Return: 0 on success, -1 on failure.
1458 */
1459int rsi_send_rx_filter_frame(struct rsi_common *common, u16 rx_filter_word)
1460{
1461 struct rsi_mac_frame *cmd_frame;
1462 struct sk_buff *skb;
1463
1464 rsi_dbg(MGMT_TX_ZONE, "Sending RX filter frame\n");
1465
1466 skb = dev_alloc_skb(FRAME_DESC_SZ);
1467 if (!skb) {
1468 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
1469 __func__);
1470 return -ENOMEM;
1471 }
1472
1473 memset(skb->data, 0, FRAME_DESC_SZ);
1474 cmd_frame = (struct rsi_mac_frame *)skb->data;
1475
1476 cmd_frame->desc_word[0] = cpu_to_le16(RSI_WIFI_MGMT_Q << 12);
1477 cmd_frame->desc_word[1] = cpu_to_le16(SET_RX_FILTER);
1478 cmd_frame->desc_word[4] = cpu_to_le16(rx_filter_word);
1479
1480 skb_put(skb, FRAME_DESC_SZ);
1481
1482 return rsi_send_internal_mgmt_frame(common, skb);
1483}
1484
1485int rsi_send_ps_request(struct rsi_hw *adapter, bool enable,
1486 struct ieee80211_vif *vif)
1487{
1488 struct rsi_common *common = adapter->priv;
1489 struct ieee80211_bss_conf *bss = &vif->bss_conf;
1490 struct rsi_request_ps *ps;
1491 struct rsi_ps_info *ps_info;
1492 struct sk_buff *skb;
1493 int frame_len = sizeof(*ps);
1494
1495 skb = dev_alloc_skb(frame_len);
1496 if (!skb)
1497 return -ENOMEM;
1498 memset(skb->data, 0, frame_len);
1499
1500 ps = (struct rsi_request_ps *)skb->data;
1501 ps_info = &adapter->ps_info;
1502
1503 rsi_set_len_qno(&ps->desc.desc_dword0.len_qno,
1504 (frame_len - FRAME_DESC_SZ), RSI_WIFI_MGMT_Q);
1505 ps->desc.desc_dword0.frame_type = WAKEUP_SLEEP_REQUEST;
1506 if (enable) {
1507 ps->ps_sleep.enable = RSI_PS_ENABLE;
1508 ps->desc.desc_dword3.token = cpu_to_le16(RSI_SLEEP_REQUEST);
1509 } else {
1510 ps->ps_sleep.enable = RSI_PS_DISABLE;
1511 ps->desc.desc_dword0.len_qno |= cpu_to_le16(RSI_PS_DISABLE_IND);
1512 ps->desc.desc_dword3.token = cpu_to_le16(RSI_WAKEUP_REQUEST);
1513 }
1514
1515 ps->ps_uapsd_acs = common->uapsd_bitmap;
1516
1517 ps->ps_sleep.sleep_type = ps_info->sleep_type;
1518 ps->ps_sleep.num_bcns_per_lis_int =
1519 cpu_to_le16(ps_info->num_bcns_per_lis_int);
1520 ps->ps_sleep.sleep_duration =
1521 cpu_to_le32(ps_info->deep_sleep_wakeup_period);
1522
1523 if (bss->assoc)
1524 ps->ps_sleep.connected_sleep = RSI_CONNECTED_SLEEP;
1525 else
1526 ps->ps_sleep.connected_sleep = RSI_DEEP_SLEEP;
1527
1528 ps->ps_listen_interval = cpu_to_le32(ps_info->listen_interval);
1529 ps->ps_dtim_interval_duration =
1530 cpu_to_le32(ps_info->dtim_interval_duration);
1531
1532 if (ps_info->listen_interval > ps_info->dtim_interval_duration)
1533 ps->ps_listen_interval = cpu_to_le32(RSI_PS_DISABLE);
1534
1535 ps->ps_num_dtim_intervals = cpu_to_le16(ps_info->num_dtims_per_sleep);
1536 skb_put(skb, frame_len);
1537
1538 return rsi_send_internal_mgmt_frame(common, skb);
1539}
1540
1541/**
1542 * rsi_set_antenna() - This fuction send antenna configuration request
1543 * to device
1544 *
1545 * @common: Pointer to the driver private structure.
1546 * @antenna: bitmap for tx antenna selection
1547 *
1548 * Return: 0 on Success, negative error code on failure
1549 */
1550int rsi_set_antenna(struct rsi_common *common, u8 antenna)
1551{
1552 struct rsi_ant_sel_frame *ant_sel_frame;
1553 struct sk_buff *skb;
1554
1555 skb = dev_alloc_skb(FRAME_DESC_SZ);
1556 if (!skb) {
1557 rsi_dbg(ERR_ZONE, "%s: Failed in allocation of skb\n",
1558 __func__);
1559 return -ENOMEM;
1560 }
1561
1562 memset(skb->data, 0, FRAME_DESC_SZ);
1563
1564 ant_sel_frame = (struct rsi_ant_sel_frame *)skb->data;
1565 ant_sel_frame->desc_dword0.frame_type = ANT_SEL_FRAME;
1566 ant_sel_frame->sub_frame_type = ANTENNA_SEL_TYPE;
1567 ant_sel_frame->ant_value = cpu_to_le16(antenna & ANTENNA_MASK_VALUE);
1568 rsi_set_len_qno(&ant_sel_frame->desc_dword0.len_qno,
1569 0, RSI_WIFI_MGMT_Q);
1570 skb_put(skb, FRAME_DESC_SZ);
1571
1572 return rsi_send_internal_mgmt_frame(common, skb);
1573}
1574
1575static int rsi_send_beacon(struct rsi_common *common)
1576{
1577 struct sk_buff *skb = NULL;
1578 u8 dword_align_bytes = 0;
1579
1580 skb = dev_alloc_skb(MAX_MGMT_PKT_SIZE);
1581 if (!skb)
1582 return -ENOMEM;
1583
1584 memset(skb->data, 0, MAX_MGMT_PKT_SIZE);
1585
1586 dword_align_bytes = ((unsigned long)skb->data & 0x3f);
1587 if (dword_align_bytes)
1588 skb_pull(skb, (64 - dword_align_bytes));
1589 if (rsi_prepare_beacon(common, skb)) {
1590 rsi_dbg(ERR_ZONE, "Failed to prepare beacon\n");
1591 return -EINVAL;
1592 }
1593 skb_queue_tail(&common->tx_queue[MGMT_BEACON_Q], skb);
1594 rsi_set_event(&common->tx_thread.event);
1595 rsi_dbg(DATA_TX_ZONE, "%s: Added to beacon queue\n", __func__);
1596
1597 return 0;
1598}
1599
1600#ifdef CONFIG_PM
1601int rsi_send_wowlan_request(struct rsi_common *common, u16 flags,
1602 u16 sleep_status)
1603{
1604 struct rsi_wowlan_req *cmd_frame;
1605 struct sk_buff *skb;
1606 u8 length;
1607
1608 rsi_dbg(ERR_ZONE, "%s: Sending wowlan request frame\n", __func__);
1609
1610 length = sizeof(*cmd_frame);
1611 skb = dev_alloc_skb(length);
1612 if (!skb)
1613 return -ENOMEM;
1614 memset(skb->data, 0, length);
1615 cmd_frame = (struct rsi_wowlan_req *)skb->data;
1616
1617 rsi_set_len_qno(&cmd_frame->desc.desc_dword0.len_qno,
1618 (length - FRAME_DESC_SZ),
1619 RSI_WIFI_MGMT_Q);
1620 cmd_frame->desc.desc_dword0.frame_type = WOWLAN_CONFIG_PARAMS;
1621 cmd_frame->host_sleep_status = sleep_status;
1622 if (common->secinfo.security_enable &&
1623 common->secinfo.gtk_cipher)
1624 flags |= RSI_WOW_GTK_REKEY;
1625 if (sleep_status)
1626 cmd_frame->wow_flags = flags;
1627 rsi_dbg(INFO_ZONE, "Host_Sleep_Status : %d Flags : %d\n",
1628 cmd_frame->host_sleep_status, cmd_frame->wow_flags);
1629
1630 skb_put(skb, length);
1631
1632 return rsi_send_internal_mgmt_frame(common, skb);
1633}
1634#endif
1635
1636/**
1637 * rsi_handle_ta_confirm_type() - This function handles the confirm frames.
1638 * @common: Pointer to the driver private structure.
1639 * @msg: Pointer to received packet.
1640 *
1641 * Return: 0 on success, -1 on failure.
1642 */
1643static int rsi_handle_ta_confirm_type(struct rsi_common *common,
1644 u8 *msg)
1645{
1646 struct rsi_hw *adapter = common->priv;
1647 u8 sub_type = (msg[15] & 0xff);
1648 u16 msg_len = ((u16 *)msg)[0] & 0xfff;
1649 u8 offset;
1650
1651 switch (sub_type) {
1652 case BOOTUP_PARAMS_REQUEST:
1653 rsi_dbg(FSM_ZONE, "%s: Boot up params confirm received\n",
1654 __func__);
1655 if (common->fsm_state == FSM_BOOT_PARAMS_SENT) {
1656 adapter->eeprom.length = (IEEE80211_ADDR_LEN +
1657 WLAN_MAC_MAGIC_WORD_LEN +
1658 WLAN_HOST_MODE_LEN);
1659 adapter->eeprom.offset = WLAN_MAC_EEPROM_ADDR;
1660 if (rsi_eeprom_read(common)) {
1661 common->fsm_state = FSM_CARD_NOT_READY;
1662 goto out;
1663 }
1664 common->fsm_state = FSM_EEPROM_READ_MAC_ADDR;
1665 } else {
1666 rsi_dbg(INFO_ZONE,
1667 "%s: Received bootup params cfm in %d state\n",
1668 __func__, common->fsm_state);
1669 return 0;
1670 }
1671 break;
1672
1673 case EEPROM_READ:
1674 rsi_dbg(FSM_ZONE, "EEPROM READ confirm received\n");
1675 if (msg_len <= 0) {
1676 rsi_dbg(FSM_ZONE,
1677 "%s: [EEPROM_READ] Invalid len %d\n",
1678 __func__, msg_len);
1679 goto out;
1680 }
1681 if (msg[16] != MAGIC_WORD) {
1682 rsi_dbg(FSM_ZONE,
1683 "%s: [EEPROM_READ] Invalid token\n", __func__);
1684 common->fsm_state = FSM_CARD_NOT_READY;
1685 goto out;
1686 }
1687 if (common->fsm_state == FSM_EEPROM_READ_MAC_ADDR) {
1688 offset = (FRAME_DESC_SZ + WLAN_HOST_MODE_LEN +
1689 WLAN_MAC_MAGIC_WORD_LEN);
1690 memcpy(common->mac_addr, &msg[offset], ETH_ALEN);
1691 adapter->eeprom.length =
1692 ((WLAN_MAC_MAGIC_WORD_LEN + 3) & (~3));
1693 adapter->eeprom.offset = WLAN_EEPROM_RFTYPE_ADDR;
1694 if (rsi_eeprom_read(common)) {
1695 rsi_dbg(ERR_ZONE,
1696 "%s: Failed reading RF band\n",
1697 __func__);
1698 common->fsm_state = FSM_CARD_NOT_READY;
1699 goto out;
1700 }
1701 common->fsm_state = FSM_EEPROM_READ_RF_TYPE;
1702 } else if (common->fsm_state == FSM_EEPROM_READ_RF_TYPE) {
1703 if ((msg[17] & 0x3) == 0x3) {
1704 rsi_dbg(INIT_ZONE, "Dual band supported\n");
1705 common->band = NL80211_BAND_5GHZ;
1706 common->num_supp_bands = 2;
1707 } else if ((msg[17] & 0x3) == 0x1) {
1708 rsi_dbg(INIT_ZONE,
1709 "Only 2.4Ghz band supported\n");
1710 common->band = NL80211_BAND_2GHZ;
1711 common->num_supp_bands = 1;
1712 }
1713 if (rsi_send_reset_mac(common))
1714 goto out;
1715 common->fsm_state = FSM_RESET_MAC_SENT;
1716 } else {
1717 rsi_dbg(ERR_ZONE, "%s: Invalid EEPROM read type\n",
1718 __func__);
1719 return 0;
1720 }
1721 break;
1722
1723 case RESET_MAC_REQ:
1724 if (common->fsm_state == FSM_RESET_MAC_SENT) {
1725 rsi_dbg(FSM_ZONE, "%s: Reset MAC cfm received\n",
1726 __func__);
1727
1728 if (rsi_load_radio_caps(common))
1729 goto out;
1730 else
1731 common->fsm_state = FSM_RADIO_CAPS_SENT;
1732 } else {
1733 rsi_dbg(ERR_ZONE,
1734 "%s: Received reset mac cfm in %d state\n",
1735 __func__, common->fsm_state);
1736 return 0;
1737 }
1738 break;
1739
1740 case RADIO_CAPABILITIES:
1741 if (common->fsm_state == FSM_RADIO_CAPS_SENT) {
1742 common->rf_reset = 1;
1743 if (rsi_program_bb_rf(common)) {
1744 goto out;
1745 } else {
1746 common->fsm_state = FSM_BB_RF_PROG_SENT;
1747 rsi_dbg(FSM_ZONE, "%s: Radio cap cfm received\n",
1748 __func__);
1749 }
1750 } else {
1751 rsi_dbg(INFO_ZONE,
1752 "%s: Received radio caps cfm in %d state\n",
1753 __func__, common->fsm_state);
1754 return 0;
1755 }
1756 break;
1757
1758 case BB_PROG_VALUES_REQUEST:
1759 case RF_PROG_VALUES_REQUEST:
1760 case BBP_PROG_IN_TA:
1761 rsi_dbg(FSM_ZONE, "%s: BB/RF cfm received\n", __func__);
1762 if (common->fsm_state == FSM_BB_RF_PROG_SENT) {
1763 common->bb_rf_prog_count--;
1764 if (!common->bb_rf_prog_count) {
1765 common->fsm_state = FSM_MAC_INIT_DONE;
1766 if (common->reinit_hw) {
1767 complete(&common->wlan_init_completion);
1768 } else {
1769 return rsi_mac80211_attach(common);
1770 }
1771 }
1772 } else {
1773 rsi_dbg(INFO_ZONE,
1774 "%s: Received bbb_rf cfm in %d state\n",
1775 __func__, common->fsm_state);
1776 return 0;
1777 }
1778 break;
1779 case WAKEUP_SLEEP_REQUEST:
1780 rsi_dbg(INFO_ZONE, "Wakeup/Sleep confirmation.\n");
1781 return rsi_handle_ps_confirm(adapter, msg);
1782 default:
1783 rsi_dbg(INFO_ZONE, "%s: Invalid TA confirm pkt received\n",
1784 __func__);
1785 break;
1786 }
1787 return 0;
1788out:
1789 rsi_dbg(ERR_ZONE, "%s: Unable to send pkt/Invalid frame received\n",
1790 __func__);
1791 return -EINVAL;
1792}
1793
1794int rsi_handle_card_ready(struct rsi_common *common, u8 *msg)
1795{
1796 switch (common->fsm_state) {
1797 case FSM_CARD_NOT_READY:
1798 rsi_dbg(INIT_ZONE, "Card ready indication from Common HAL\n");
1799 rsi_set_default_parameters(common);
1800 if (rsi_send_common_dev_params(common) < 0)
1801 return -EINVAL;
1802 common->fsm_state = FSM_COMMON_DEV_PARAMS_SENT;
1803 break;
1804 case FSM_COMMON_DEV_PARAMS_SENT:
1805 rsi_dbg(INIT_ZONE, "Card ready indication from WLAN HAL\n");
1806
1807 /* Get usb buffer status register address */
1808 common->priv->usb_buffer_status_reg = *(u32 *)&msg[8];
1809 rsi_dbg(INFO_ZONE, "USB buffer status register = %x\n",
1810 common->priv->usb_buffer_status_reg);
1811
1812 if (rsi_load_bootup_params(common)) {
1813 common->fsm_state = FSM_CARD_NOT_READY;
1814 return -EINVAL;
1815 }
1816 common->fsm_state = FSM_BOOT_PARAMS_SENT;
1817 break;
1818 default:
1819 rsi_dbg(ERR_ZONE,
1820 "%s: card ready indication in invalid state %d.\n",
1821 __func__, common->fsm_state);
1822 return -EINVAL;
1823 }
1824
1825 return 0;
1826}
1827
1828/**
1829 * rsi_mgmt_pkt_recv() - This function processes the management packets
1830 * recieved from the hardware.
1831 * @common: Pointer to the driver private structure.
1832 * @msg: Pointer to the received packet.
1833 *
1834 * Return: 0 on success, -1 on failure.
1835 */
1836int rsi_mgmt_pkt_recv(struct rsi_common *common, u8 *msg)
1837{
1838 s32 msg_len = (le16_to_cpu(*(__le16 *)&msg[0]) & 0x0fff);
1839 u16 msg_type = (msg[2]);
1840
1841 rsi_dbg(FSM_ZONE, "%s: Msg Len: %d, Msg Type: %4x\n",
1842 __func__, msg_len, msg_type);
1843
1844 switch (msg_type) {
1845 case TA_CONFIRM_TYPE:
1846 return rsi_handle_ta_confirm_type(common, msg);
1847 case CARD_READY_IND:
1848 common->hibernate_resume = false;
1849 rsi_dbg(FSM_ZONE, "%s: Card ready indication received\n",
1850 __func__);
1851 return rsi_handle_card_ready(common, msg);
1852 case TX_STATUS_IND:
1853 if (msg[15] == PROBEREQ_CONFIRM) {
1854 common->mgmt_q_block = false;
1855 rsi_dbg(FSM_ZONE, "%s: Probe confirm received\n",
1856 __func__);
1857 }
1858 break;
1859 case BEACON_EVENT_IND:
1860 rsi_dbg(INFO_ZONE, "Beacon event\n");
1861 if (common->fsm_state != FSM_MAC_INIT_DONE)
1862 return -1;
1863 if (common->iface_down)
1864 return -1;
1865 if (!common->beacon_enabled)
1866 return -1;
1867 rsi_send_beacon(common);
1868 break;
1869 case RX_DOT11_MGMT:
1870 return rsi_mgmt_pkt_to_core(common, msg, msg_len);
1871 default:
1872 rsi_dbg(INFO_ZONE, "Received packet type: 0x%x\n", msg_type);
1873 }
1874 return 0;
1875}