2 * Copyright (c) 2014 Redpine Signals Inc.
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.
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.
17 #include <linux/etherdevice.h>
19 #include "rsi_common.h"
21 static struct bootup_params boot_params_20
= {
22 .magic_number
= cpu_to_le16(0x5aa5),
23 .crystal_good_time
= 0x0,
24 .valid
= cpu_to_le32(VALID_20
),
25 .reserved_for_valids
= 0x0,
26 .bootup_mode_info
= 0x0,
27 .digital_loop_back_params
= 0x0,
28 .rtls_timestamp_en
= 0x0,
29 .host_spi_intr_cfg
= 0x0,
33 .pll_reg_1
= cpu_to_le16((TA_PLL_N_VAL_20
<< 8)|
35 .pll_reg_2
= cpu_to_le16(TA_PLL_P_VAL_20
),
38 .pll_reg_1
= cpu_to_le16((PLL960_P_VAL_20
<< 8)|
40 .pll_reg_2
= cpu_to_le16(PLL960_M_VAL_20
),
44 .pll_reg
= cpu_to_le16(0x9f0),
48 .switch_clk_info
= cpu_to_le16(BIT(3)),
49 .bbp_lmac_clk_reg_val
= cpu_to_le16(0x121),
50 .umac_clock_reg_config
= 0x0,
51 .qspi_uart_clock_reg_config
= 0x0
57 .pll_reg_1
= cpu_to_le16((TA_PLL_N_VAL_20
<< 8)|
59 .pll_reg_2
= cpu_to_le16(TA_PLL_P_VAL_20
),
62 .pll_reg_1
= cpu_to_le16((PLL960_P_VAL_20
<< 8)|
64 .pll_reg_2
= cpu_to_le16(PLL960_M_VAL_20
),
68 .pll_reg
= cpu_to_le16(0x9f0),
72 .switch_clk_info
= 0x0,
73 .bbp_lmac_clk_reg_val
= 0x0,
74 .umac_clock_reg_config
= 0x0,
75 .qspi_uart_clock_reg_config
= 0x0
81 .pll_reg_1
= cpu_to_le16((TA_PLL_N_VAL_20
<< 8)|
83 .pll_reg_2
= cpu_to_le16(TA_PLL_P_VAL_20
),
86 .pll_reg_1
= cpu_to_le16((PLL960_P_VAL_20
<< 8)|
88 .pll_reg_2
= cpu_to_le16(PLL960_M_VAL_20
),
92 .pll_reg
= cpu_to_le16(0x9f0),
96 .switch_clk_info
= 0x0,
97 .bbp_lmac_clk_reg_val
= 0x0,
98 .umac_clock_reg_config
= 0x0,
99 .qspi_uart_clock_reg_config
= 0x0
102 .buckboost_wakeup_cnt
= 0x0,
103 .pmu_wakeup_wait
= 0x0,
104 .shutdown_wait_time
= 0x0,
105 .pmu_slp_clkout_sel
= 0x0,
106 .wdt_prog_value
= 0x0,
107 .wdt_soc_rst_delay
= 0x0,
108 .dcdc_operation_mode
= 0x0,
109 .soc_reset_wait_cnt
= 0x0
112 static struct bootup_params boot_params_40
= {
113 .magic_number
= cpu_to_le16(0x5aa5),
114 .crystal_good_time
= 0x0,
115 .valid
= cpu_to_le32(VALID_40
),
116 .reserved_for_valids
= 0x0,
117 .bootup_mode_info
= 0x0,
118 .digital_loop_back_params
= 0x0,
119 .rtls_timestamp_en
= 0x0,
120 .host_spi_intr_cfg
= 0x0,
121 .device_clk_info
= {{
124 .pll_reg_1
= cpu_to_le16((TA_PLL_N_VAL_40
<< 8)|
126 .pll_reg_2
= cpu_to_le16(TA_PLL_P_VAL_40
),
129 .pll_reg_1
= cpu_to_le16((PLL960_P_VAL_40
<< 8)|
131 .pll_reg_2
= cpu_to_le16(PLL960_M_VAL_40
),
135 .pll_reg
= cpu_to_le16(0x9f0),
139 .switch_clk_info
= cpu_to_le16(0x09),
140 .bbp_lmac_clk_reg_val
= cpu_to_le16(0x1121),
141 .umac_clock_reg_config
= cpu_to_le16(0x48),
142 .qspi_uart_clock_reg_config
= 0x0
148 .pll_reg_1
= cpu_to_le16((TA_PLL_N_VAL_40
<< 8)|
150 .pll_reg_2
= cpu_to_le16(TA_PLL_P_VAL_40
),
153 .pll_reg_1
= cpu_to_le16((PLL960_P_VAL_40
<< 8)|
155 .pll_reg_2
= cpu_to_le16(PLL960_M_VAL_40
),
159 .pll_reg
= cpu_to_le16(0x9f0),
163 .switch_clk_info
= 0x0,
164 .bbp_lmac_clk_reg_val
= 0x0,
165 .umac_clock_reg_config
= 0x0,
166 .qspi_uart_clock_reg_config
= 0x0
172 .pll_reg_1
= cpu_to_le16((TA_PLL_N_VAL_40
<< 8)|
174 .pll_reg_2
= cpu_to_le16(TA_PLL_P_VAL_40
),
177 .pll_reg_1
= cpu_to_le16((PLL960_P_VAL_40
<< 8)|
179 .pll_reg_2
= cpu_to_le16(PLL960_M_VAL_40
),
183 .pll_reg
= cpu_to_le16(0x9f0),
187 .switch_clk_info
= 0x0,
188 .bbp_lmac_clk_reg_val
= 0x0,
189 .umac_clock_reg_config
= 0x0,
190 .qspi_uart_clock_reg_config
= 0x0
193 .buckboost_wakeup_cnt
= 0x0,
194 .pmu_wakeup_wait
= 0x0,
195 .shutdown_wait_time
= 0x0,
196 .pmu_slp_clkout_sel
= 0x0,
197 .wdt_prog_value
= 0x0,
198 .wdt_soc_rst_delay
= 0x0,
199 .dcdc_operation_mode
= 0x0,
200 .soc_reset_wait_cnt
= 0x0
203 static u16 mcs
[] = {13, 26, 39, 52, 78, 104, 117, 130};
206 * rsi_set_default_parameters() - This function sets default parameters.
207 * @common: Pointer to the driver private structure.
211 static void rsi_set_default_parameters(struct rsi_common
*common
)
213 common
->band
= IEEE80211_BAND_2GHZ
;
214 common
->channel_width
= BW_20MHZ
;
215 common
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
217 common
->min_rate
= 0xffff;
218 common
->fsm_state
= FSM_CARD_NOT_READY
;
219 common
->iface_down
= true;
223 * rsi_set_contention_vals() - This function sets the contention values for the
225 * @common: Pointer to the driver private structure.
229 static void rsi_set_contention_vals(struct rsi_common
*common
)
233 for (; ii
< NUM_EDCA_QUEUES
; ii
++) {
234 common
->tx_qinfo
[ii
].wme_params
=
235 (((common
->edca_params
[ii
].cw_min
/ 2) +
236 (common
->edca_params
[ii
].aifs
)) *
237 WMM_SHORT_SLOT_TIME
+ SIFS_DURATION
);
238 common
->tx_qinfo
[ii
].weight
= common
->tx_qinfo
[ii
].wme_params
;
239 common
->tx_qinfo
[ii
].pkt_contended
= 0;
244 * rsi_send_internal_mgmt_frame() - This function sends management frames to
245 * firmware.Also schedules packet to queue
247 * @common: Pointer to the driver private structure.
248 * @skb: Pointer to the socket buffer structure.
250 * Return: 0 on success, -1 on failure.
252 static int rsi_send_internal_mgmt_frame(struct rsi_common
*common
,
255 struct skb_info
*tx_params
;
258 rsi_dbg(ERR_ZONE
, "%s: Unable to allocate skb\n", __func__
);
261 tx_params
= (struct skb_info
*)&IEEE80211_SKB_CB(skb
)->driver_data
;
262 tx_params
->flags
|= INTERNAL_MGMT_PKT
;
263 skb_queue_tail(&common
->tx_queue
[MGMT_SOFT_Q
], skb
);
264 rsi_set_event(&common
->tx_thread
.event
);
269 * rsi_load_radio_caps() - This function is used to send radio capabilities
270 * values to firmware.
271 * @common: Pointer to the driver private structure.
273 * Return: 0 on success, corresponding negative error code on failure.
275 static int rsi_load_radio_caps(struct rsi_common
*common
)
277 struct rsi_radio_caps
*radio_caps
;
278 struct rsi_hw
*adapter
= common
->priv
;
279 struct ieee80211_hw
*hw
= adapter
->hw
;
283 u16 gc
[20] = {0xf0, 0xf0, 0xf0, 0xf0,
284 0xf0, 0xf0, 0xf0, 0xf0,
285 0xf0, 0xf0, 0xf0, 0xf0,
286 0xf0, 0xf0, 0xf0, 0xf0,
287 0xf0, 0xf0, 0xf0, 0xf0};
288 struct ieee80211_conf
*conf
= &hw
->conf
;
291 rsi_dbg(INFO_ZONE
, "%s: Sending rate symbol req frame\n", __func__
);
293 skb
= dev_alloc_skb(sizeof(struct rsi_radio_caps
));
296 rsi_dbg(ERR_ZONE
, "%s: Failed in allocation of skb\n",
301 memset(skb
->data
, 0, sizeof(struct rsi_radio_caps
));
302 radio_caps
= (struct rsi_radio_caps
*)skb
->data
;
304 radio_caps
->desc_word
[1] = cpu_to_le16(RADIO_CAPABILITIES
);
305 radio_caps
->desc_word
[4] = cpu_to_le16(RSI_RF_TYPE
<< 8);
307 if (common
->channel_width
== BW_40MHZ
) {
308 radio_caps
->desc_word
[7] |= cpu_to_le16(RSI_LMAC_CLOCK_80MHZ
);
309 radio_caps
->desc_word
[7] |= cpu_to_le16(RSI_ENABLE_40MHZ
);
310 if (common
->channel_width
) {
311 radio_caps
->desc_word
[5] =
312 cpu_to_le16(common
->channel_width
<< 12);
313 radio_caps
->desc_word
[5] |= cpu_to_le16(FULL40M_ENABLE
);
316 if (conf_is_ht40_minus(conf
)) {
317 radio_caps
->desc_word
[5] = 0;
318 radio_caps
->desc_word
[5] |=
319 cpu_to_le16(LOWER_20_ENABLE
);
320 radio_caps
->desc_word
[5] |=
321 cpu_to_le16(LOWER_20_ENABLE
>> 12);
324 if (conf_is_ht40_plus(conf
)) {
325 radio_caps
->desc_word
[5] = 0;
326 radio_caps
->desc_word
[5] |=
327 cpu_to_le16(UPPER_20_ENABLE
);
328 radio_caps
->desc_word
[5] |=
329 cpu_to_le16(UPPER_20_ENABLE
>> 12);
333 radio_caps
->desc_word
[7] |= cpu_to_le16(radio_id
<< 8);
335 for (ii
= 0; ii
< MAX_HW_QUEUES
; ii
++) {
336 radio_caps
->qos_params
[ii
].cont_win_min_q
= cpu_to_le16(3);
337 radio_caps
->qos_params
[ii
].cont_win_max_q
= cpu_to_le16(0x3f);
338 radio_caps
->qos_params
[ii
].aifsn_val_q
= cpu_to_le16(2);
339 radio_caps
->qos_params
[ii
].txop_q
= 0;
342 for (ii
= 0; ii
< MAX_HW_QUEUES
- 4; ii
++) {
343 radio_caps
->qos_params
[ii
].cont_win_min_q
=
344 cpu_to_le16(common
->edca_params
[ii
].cw_min
);
345 radio_caps
->qos_params
[ii
].cont_win_max_q
=
346 cpu_to_le16(common
->edca_params
[ii
].cw_max
);
347 radio_caps
->qos_params
[ii
].aifsn_val_q
=
348 cpu_to_le16((common
->edca_params
[ii
].aifs
) << 8);
349 radio_caps
->qos_params
[ii
].txop_q
=
350 cpu_to_le16(common
->edca_params
[ii
].txop
);
353 memcpy(&common
->rate_pwr
[0], &gc
[0], 40);
354 for (ii
= 0; ii
< 20; ii
++)
355 radio_caps
->gcpd_per_rate
[inx
++] =
356 cpu_to_le16(common
->rate_pwr
[ii
] & 0x00FF);
358 radio_caps
->desc_word
[0] = cpu_to_le16((sizeof(struct rsi_radio_caps
) -
360 (RSI_WIFI_MGMT_Q
<< 12));
363 skb_put(skb
, (sizeof(struct rsi_radio_caps
)));
365 return rsi_send_internal_mgmt_frame(common
, skb
);
369 * rsi_mgmt_pkt_to_core() - This function is the entry point for Mgmt module.
370 * @common: Pointer to the driver private structure.
371 * @msg: Pointer to received packet.
372 * @msg_len: Length of the recieved packet.
373 * @type: Type of recieved packet.
375 * Return: 0 on success, -1 on failure.
377 static int rsi_mgmt_pkt_to_core(struct rsi_common
*common
,
382 struct rsi_hw
*adapter
= common
->priv
;
383 struct ieee80211_tx_info
*info
;
384 struct skb_info
*rx_params
;
385 u8 pad_bytes
= msg
[4];
390 if (type
== RX_DOT11_MGMT
) {
391 if (!adapter
->sc_nvifs
)
394 msg_len
-= pad_bytes
;
395 if ((msg_len
<= 0) || (!msg
)) {
396 rsi_dbg(MGMT_RX_ZONE
,
397 "%s: Invalid rx msg of len = %d\n",
402 skb
= dev_alloc_skb(msg_len
);
404 rsi_dbg(ERR_ZONE
, "%s: Failed to allocate skb\n",
409 buffer
= skb_put(skb
, msg_len
);
412 (u8
*)(msg
+ FRAME_DESC_SZ
+ pad_bytes
),
415 pkt_recv
= buffer
[0];
417 info
= IEEE80211_SKB_CB(skb
);
418 rx_params
= (struct skb_info
*)info
->driver_data
;
419 rx_params
->rssi
= rsi_get_rssi(msg
);
420 rx_params
->channel
= rsi_get_channel(msg
);
421 rsi_indicate_pkt_to_os(common
, skb
);
423 rsi_dbg(MGMT_TX_ZONE
, "%s: Internal Packet\n", __func__
);
430 * rsi_hal_send_sta_notify_frame() - This function sends the station notify
432 * @common: Pointer to the driver private structure.
433 * @opmode: Operating mode of device.
434 * @notify_event: Notification about station connection.
436 * @qos_enable: Qos is enabled.
437 * @aid: Aid (unique for all STA).
439 * Return: status: 0 on success, corresponding negative error code on failure.
441 static int rsi_hal_send_sta_notify_frame(struct rsi_common
*common
,
444 const unsigned char *bssid
,
448 struct sk_buff
*skb
= NULL
;
449 struct rsi_peer_notify
*peer_notify
;
453 rsi_dbg(MGMT_TX_ZONE
, "%s: Sending sta notify frame\n", __func__
);
455 skb
= dev_alloc_skb(sizeof(struct rsi_peer_notify
));
458 rsi_dbg(ERR_ZONE
, "%s: Failed in allocation of skb\n",
463 memset(skb
->data
, 0, sizeof(struct rsi_peer_notify
));
464 peer_notify
= (struct rsi_peer_notify
*)skb
->data
;
466 peer_notify
->command
= cpu_to_le16(opmode
<< 1);
468 switch (notify_event
) {
470 peer_notify
->command
|= cpu_to_le16(RSI_ADD_PEER
);
472 case STA_DISCONNECTED
:
473 peer_notify
->command
|= cpu_to_le16(RSI_DELETE_PEER
);
479 peer_notify
->command
|= cpu_to_le16((aid
& 0xfff) << 4);
480 ether_addr_copy(peer_notify
->mac_addr
, bssid
);
482 peer_notify
->sta_flags
= cpu_to_le32((qos_enable
) ? 1 : 0);
484 peer_notify
->desc_word
[0] =
485 cpu_to_le16((sizeof(struct rsi_peer_notify
) - FRAME_DESC_SZ
) |
486 (RSI_WIFI_MGMT_Q
<< 12));
487 peer_notify
->desc_word
[1] = cpu_to_le16(PEER_NOTIFY
);
488 peer_notify
->desc_word
[7] |= cpu_to_le16(vap_id
<< 8);
490 skb_put(skb
, sizeof(struct rsi_peer_notify
));
492 status
= rsi_send_internal_mgmt_frame(common
, skb
);
494 if (!status
&& qos_enable
) {
495 rsi_set_contention_vals(common
);
496 status
= rsi_load_radio_caps(common
);
502 * rsi_send_aggregation_params_frame() - This function sends the ampdu
503 * indication frame to firmware.
504 * @common: Pointer to the driver private structure.
505 * @tid: traffic identifier.
507 * @buf_size: buffer size.
508 * @event: notification about station connection.
510 * Return: 0 on success, corresponding negative error code on failure.
512 int rsi_send_aggregation_params_frame(struct rsi_common
*common
,
518 struct sk_buff
*skb
= NULL
;
519 struct rsi_mac_frame
*mgmt_frame
;
522 skb
= dev_alloc_skb(FRAME_DESC_SZ
);
525 rsi_dbg(ERR_ZONE
, "%s: Failed in allocation of skb\n",
530 memset(skb
->data
, 0, FRAME_DESC_SZ
);
531 mgmt_frame
= (struct rsi_mac_frame
*)skb
->data
;
533 rsi_dbg(MGMT_TX_ZONE
, "%s: Sending AMPDU indication frame\n", __func__
);
535 mgmt_frame
->desc_word
[0] = cpu_to_le16(RSI_WIFI_MGMT_Q
<< 12);
536 mgmt_frame
->desc_word
[1] = cpu_to_le16(AMPDU_IND
);
538 if (event
== STA_TX_ADDBA_DONE
) {
539 mgmt_frame
->desc_word
[4] = cpu_to_le16(ssn
);
540 mgmt_frame
->desc_word
[5] = cpu_to_le16(buf_size
);
541 mgmt_frame
->desc_word
[7] =
542 cpu_to_le16((tid
| (START_AMPDU_AGGR
<< 4) | (peer_id
<< 8)));
543 } else if (event
== STA_RX_ADDBA_DONE
) {
544 mgmt_frame
->desc_word
[4] = cpu_to_le16(ssn
);
545 mgmt_frame
->desc_word
[7] = cpu_to_le16(tid
|
546 (START_AMPDU_AGGR
<< 4) |
547 (RX_BA_INDICATION
<< 5) |
549 } else if (event
== STA_TX_DELBA
) {
550 mgmt_frame
->desc_word
[7] = cpu_to_le16(tid
|
551 (STOP_AMPDU_AGGR
<< 4) |
553 } else if (event
== STA_RX_DELBA
) {
554 mgmt_frame
->desc_word
[7] = cpu_to_le16(tid
|
555 (STOP_AMPDU_AGGR
<< 4) |
556 (RX_BA_INDICATION
<< 5) |
560 skb_put(skb
, FRAME_DESC_SZ
);
562 return rsi_send_internal_mgmt_frame(common
, skb
);
566 * rsi_program_bb_rf() - This function starts base band and RF programming.
567 * This is called after initial configurations are done.
568 * @common: Pointer to the driver private structure.
570 * Return: 0 on success, corresponding negative error code on failure.
572 static int rsi_program_bb_rf(struct rsi_common
*common
)
575 struct rsi_mac_frame
*mgmt_frame
;
577 rsi_dbg(MGMT_TX_ZONE
, "%s: Sending program BB/RF frame\n", __func__
);
579 skb
= dev_alloc_skb(FRAME_DESC_SZ
);
581 rsi_dbg(ERR_ZONE
, "%s: Failed in allocation of skb\n",
586 memset(skb
->data
, 0, FRAME_DESC_SZ
);
587 mgmt_frame
= (struct rsi_mac_frame
*)skb
->data
;
589 mgmt_frame
->desc_word
[0] = cpu_to_le16(RSI_WIFI_MGMT_Q
<< 12);
590 mgmt_frame
->desc_word
[1] = cpu_to_le16(BBP_PROG_IN_TA
);
591 mgmt_frame
->desc_word
[4] = cpu_to_le16(common
->endpoint
<< 8);
593 if (common
->rf_reset
) {
594 mgmt_frame
->desc_word
[7] = cpu_to_le16(RF_RESET_ENABLE
);
595 rsi_dbg(MGMT_TX_ZONE
, "%s: ===> RF RESET REQUEST SENT <===\n",
597 common
->rf_reset
= 0;
599 common
->bb_rf_prog_count
= 1;
600 mgmt_frame
->desc_word
[7] |= cpu_to_le16(PUT_BBP_RESET
|
601 BBP_REG_WRITE
| (RSI_RF_TYPE
<< 4));
602 skb_put(skb
, FRAME_DESC_SZ
);
604 return rsi_send_internal_mgmt_frame(common
, skb
);
608 * rsi_set_vap_capabilities() - This function send vap capability to firmware.
609 * @common: Pointer to the driver private structure.
610 * @opmode: Operating mode of device.
612 * Return: 0 on success, corresponding negative error code on failure.
614 int rsi_set_vap_capabilities(struct rsi_common
*common
, enum opmode mode
)
616 struct sk_buff
*skb
= NULL
;
617 struct rsi_vap_caps
*vap_caps
;
620 rsi_dbg(MGMT_TX_ZONE
, "%s: Sending VAP capabilities frame\n", __func__
);
622 skb
= dev_alloc_skb(sizeof(struct rsi_vap_caps
));
624 rsi_dbg(ERR_ZONE
, "%s: Failed in allocation of skb\n",
629 memset(skb
->data
, 0, sizeof(struct rsi_vap_caps
));
630 vap_caps
= (struct rsi_vap_caps
*)skb
->data
;
632 vap_caps
->desc_word
[0] = cpu_to_le16((sizeof(struct rsi_vap_caps
) -
634 (RSI_WIFI_MGMT_Q
<< 12));
635 vap_caps
->desc_word
[1] = cpu_to_le16(VAP_CAPABILITIES
);
636 vap_caps
->desc_word
[4] = cpu_to_le16(mode
|
637 (common
->channel_width
<< 8));
638 vap_caps
->desc_word
[7] = cpu_to_le16((vap_id
<< 8) |
639 (common
->mac_id
<< 4) |
642 memcpy(vap_caps
->mac_addr
, common
->mac_addr
, IEEE80211_ADDR_LEN
);
643 vap_caps
->keep_alive_period
= cpu_to_le16(90);
644 vap_caps
->frag_threshold
= cpu_to_le16(IEEE80211_MAX_FRAG_THRESHOLD
);
646 vap_caps
->rts_threshold
= cpu_to_le16(common
->rts_threshold
);
647 vap_caps
->default_mgmt_rate
= 0;
648 if (conf_is_ht40(&common
->priv
->hw
->conf
)) {
649 vap_caps
->default_ctrl_rate
=
650 cpu_to_le32(RSI_RATE_6
| FULL40M_ENABLE
<< 16);
652 vap_caps
->default_ctrl_rate
= cpu_to_le32(RSI_RATE_6
);
654 vap_caps
->default_data_rate
= 0;
655 vap_caps
->beacon_interval
= cpu_to_le16(200);
656 vap_caps
->dtim_period
= cpu_to_le16(4);
658 skb_put(skb
, sizeof(*vap_caps
));
660 return rsi_send_internal_mgmt_frame(common
, skb
);
664 * rsi_hal_load_key() - This function is used to load keys within the firmware.
665 * @common: Pointer to the driver private structure.
666 * @data: Pointer to the key data.
667 * @key_len: Key length to be loaded.
668 * @key_type: Type of key: GROUP/PAIRWISE.
669 * @key_id: Key index.
670 * @cipher: Type of cipher used.
672 * Return: 0 on success, -1 on failure.
674 int rsi_hal_load_key(struct rsi_common
*common
,
681 struct sk_buff
*skb
= NULL
;
682 struct rsi_set_key
*set_key
;
683 u16 key_descriptor
= 0;
685 rsi_dbg(MGMT_TX_ZONE
, "%s: Sending load key frame\n", __func__
);
687 skb
= dev_alloc_skb(sizeof(struct rsi_set_key
));
689 rsi_dbg(ERR_ZONE
, "%s: Failed in allocation of skb\n",
694 memset(skb
->data
, 0, sizeof(struct rsi_set_key
));
695 set_key
= (struct rsi_set_key
*)skb
->data
;
697 if ((cipher
== WLAN_CIPHER_SUITE_WEP40
) ||
698 (cipher
== WLAN_CIPHER_SUITE_WEP104
)) {
700 key_descriptor
|= BIT(2);
702 key_descriptor
|= BIT(3);
703 } else if (cipher
!= KEY_TYPE_CLEAR
) {
704 key_descriptor
|= BIT(4);
705 if (key_type
== RSI_PAIRWISE_KEY
)
707 if (cipher
== WLAN_CIPHER_SUITE_TKIP
)
708 key_descriptor
|= BIT(5);
710 key_descriptor
|= (key_type
| BIT(13) | (key_id
<< 14));
712 set_key
->desc_word
[0] = cpu_to_le16((sizeof(struct rsi_set_key
) -
714 (RSI_WIFI_MGMT_Q
<< 12));
715 set_key
->desc_word
[1] = cpu_to_le16(SET_KEY_REQ
);
716 set_key
->desc_word
[4] = cpu_to_le16(key_descriptor
);
718 if ((cipher
== WLAN_CIPHER_SUITE_WEP40
) ||
719 (cipher
== WLAN_CIPHER_SUITE_WEP104
)) {
720 memcpy(&set_key
->key
[key_id
][1],
724 memcpy(&set_key
->key
[0][0], data
, key_len
);
727 memcpy(set_key
->tx_mic_key
, &data
[16], 8);
728 memcpy(set_key
->rx_mic_key
, &data
[24], 8);
730 skb_put(skb
, sizeof(struct rsi_set_key
));
732 return rsi_send_internal_mgmt_frame(common
, skb
);
736 * rsi_load_bootup_params() - This function send bootup params to the firmware.
737 * @common: Pointer to the driver private structure.
739 * Return: 0 on success, corresponding error code on failure.
741 static int rsi_load_bootup_params(struct rsi_common
*common
)
744 struct rsi_boot_params
*boot_params
;
746 rsi_dbg(MGMT_TX_ZONE
, "%s: Sending boot params frame\n", __func__
);
747 skb
= dev_alloc_skb(sizeof(struct rsi_boot_params
));
749 rsi_dbg(ERR_ZONE
, "%s: Failed in allocation of skb\n",
754 memset(skb
->data
, 0, sizeof(struct rsi_boot_params
));
755 boot_params
= (struct rsi_boot_params
*)skb
->data
;
757 rsi_dbg(MGMT_TX_ZONE
, "%s:\n", __func__
);
759 if (common
->channel_width
== BW_40MHZ
) {
760 memcpy(&boot_params
->bootup_params
,
762 sizeof(struct bootup_params
));
763 rsi_dbg(MGMT_TX_ZONE
, "%s: Packet 40MHZ <=== %d\n", __func__
,
765 boot_params
->desc_word
[7] = cpu_to_le16(UMAC_CLK_40BW
);
767 memcpy(&boot_params
->bootup_params
,
769 sizeof(struct bootup_params
));
770 if (boot_params_20
.valid
!= cpu_to_le32(VALID_20
)) {
771 boot_params
->desc_word
[7] = cpu_to_le16(UMAC_CLK_20BW
);
772 rsi_dbg(MGMT_TX_ZONE
,
773 "%s: Packet 20MHZ <=== %d\n", __func__
,
776 boot_params
->desc_word
[7] = cpu_to_le16(UMAC_CLK_40MHZ
);
777 rsi_dbg(MGMT_TX_ZONE
,
778 "%s: Packet 20MHZ <=== %d\n", __func__
,
784 * Bit{0:11} indicates length of the Packet
785 * Bit{12:15} indicates host queue number
787 boot_params
->desc_word
[0] = cpu_to_le16(sizeof(struct bootup_params
) |
788 (RSI_WIFI_MGMT_Q
<< 12));
789 boot_params
->desc_word
[1] = cpu_to_le16(BOOTUP_PARAMS_REQUEST
);
791 skb_put(skb
, sizeof(struct rsi_boot_params
));
793 return rsi_send_internal_mgmt_frame(common
, skb
);
797 * rsi_send_reset_mac() - This function prepares reset MAC request and sends an
798 * internal management frame to indicate it to firmware.
799 * @common: Pointer to the driver private structure.
801 * Return: 0 on success, corresponding error code on failure.
803 static int rsi_send_reset_mac(struct rsi_common
*common
)
806 struct rsi_mac_frame
*mgmt_frame
;
808 rsi_dbg(MGMT_TX_ZONE
, "%s: Sending reset MAC frame\n", __func__
);
810 skb
= dev_alloc_skb(FRAME_DESC_SZ
);
812 rsi_dbg(ERR_ZONE
, "%s: Failed in allocation of skb\n",
817 memset(skb
->data
, 0, FRAME_DESC_SZ
);
818 mgmt_frame
= (struct rsi_mac_frame
*)skb
->data
;
820 mgmt_frame
->desc_word
[0] = cpu_to_le16(RSI_WIFI_MGMT_Q
<< 12);
821 mgmt_frame
->desc_word
[1] = cpu_to_le16(RESET_MAC_REQ
);
822 mgmt_frame
->desc_word
[4] = cpu_to_le16(RETRY_COUNT
<< 8);
824 skb_put(skb
, FRAME_DESC_SZ
);
826 return rsi_send_internal_mgmt_frame(common
, skb
);
830 * rsi_set_channel() - This function programs the channel.
831 * @common: Pointer to the driver private structure.
832 * @channel: Channel value to be set.
834 * Return: 0 on success, corresponding error code on failure.
836 int rsi_set_channel(struct rsi_common
*common
, u16 channel
)
838 struct sk_buff
*skb
= NULL
;
839 struct rsi_mac_frame
*mgmt_frame
;
841 rsi_dbg(MGMT_TX_ZONE
,
842 "%s: Sending scan req frame\n", __func__
);
844 if (common
->band
== IEEE80211_BAND_5GHZ
) {
845 if ((channel
>= 36) && (channel
<= 64))
846 channel
= ((channel
- 32) / 4);
847 else if ((channel
> 64) && (channel
<= 140))
848 channel
= ((channel
- 102) / 4) + 8;
849 else if (channel
>= 149)
850 channel
= ((channel
- 151) / 4) + 18;
855 rsi_dbg(ERR_ZONE
, "%s: Invalid chno %d, band = %d\n",
856 __func__
, channel
, common
->band
);
861 skb
= dev_alloc_skb(FRAME_DESC_SZ
);
863 rsi_dbg(ERR_ZONE
, "%s: Failed in allocation of skb\n",
868 memset(skb
->data
, 0, FRAME_DESC_SZ
);
869 mgmt_frame
= (struct rsi_mac_frame
*)skb
->data
;
871 mgmt_frame
->desc_word
[0] = cpu_to_le16(RSI_WIFI_MGMT_Q
<< 12);
872 mgmt_frame
->desc_word
[1] = cpu_to_le16(SCAN_REQUEST
);
873 mgmt_frame
->desc_word
[4] = cpu_to_le16(channel
);
875 mgmt_frame
->desc_word
[7] = cpu_to_le16(PUT_BBP_RESET
|
879 mgmt_frame
->desc_word
[5] = cpu_to_le16(0x01);
881 if (common
->channel_width
== BW_40MHZ
)
882 mgmt_frame
->desc_word
[5] |= cpu_to_le16(0x1 << 8);
884 common
->channel
= channel
;
886 skb_put(skb
, FRAME_DESC_SZ
);
888 return rsi_send_internal_mgmt_frame(common
, skb
);
892 * rsi_compare() - This function is used to compare two integers
893 * @a: pointer to the first integer
894 * @b: pointer to the second integer
896 * Return: 0 if both are equal, -1 if the first is smaller, else 1
898 static int rsi_compare(const void *a
, const void *b
)
900 u16 _a
= *(const u16
*)(a
);
901 u16 _b
= *(const u16
*)(b
);
913 * rsi_map_rates() - This function is used to map selected rates to hw rates.
914 * @rate: The standard rate to be mapped.
915 * @offset: Offset that will be returned.
917 * Return: 0 if it is a mcs rate, else 1
919 static bool rsi_map_rates(u16 rate
, int *offset
)
922 for (kk
= 0; kk
< ARRAY_SIZE(rsi_mcsrates
); kk
++) {
923 if (rate
== mcs
[kk
]) {
929 for (kk
= 0; kk
< ARRAY_SIZE(rsi_rates
); kk
++) {
930 if (rate
== rsi_rates
[kk
].bitrate
/ 5) {
939 * rsi_send_auto_rate_request() - This function is to set rates for connection
940 * and send autorate request to firmware.
941 * @common: Pointer to the driver private structure.
943 * Return: 0 on success, corresponding error code on failure.
945 static int rsi_send_auto_rate_request(struct rsi_common
*common
)
948 struct rsi_auto_rate
*auto_rate
;
949 int ii
= 0, jj
= 0, kk
= 0;
950 struct ieee80211_hw
*hw
= common
->priv
->hw
;
951 u8 band
= hw
->conf
.chandef
.chan
->band
;
952 u8 num_supported_rates
= 0;
954 u32 rate_bitmap
= common
->bitrate_mask
[band
];
956 u16
*selected_rates
, min_rate
;
958 skb
= dev_alloc_skb(sizeof(struct rsi_auto_rate
));
960 rsi_dbg(ERR_ZONE
, "%s: Failed in allocation of skb\n",
965 selected_rates
= kmalloc(2 * RSI_TBL_SZ
, GFP_KERNEL
);
966 if (!selected_rates
) {
967 rsi_dbg(ERR_ZONE
, "%s: Failed in allocation of mem\n",
973 memset(skb
->data
, 0, sizeof(struct rsi_auto_rate
));
974 memset(selected_rates
, 0, 2 * RSI_TBL_SZ
);
976 auto_rate
= (struct rsi_auto_rate
*)skb
->data
;
978 auto_rate
->aarf_rssi
= cpu_to_le16(((u16
)3 << 6) | (u16
)(18 & 0x3f));
979 auto_rate
->collision_tolerance
= cpu_to_le16(3);
980 auto_rate
->failure_limit
= cpu_to_le16(3);
981 auto_rate
->initial_boundary
= cpu_to_le16(3);
982 auto_rate
->max_threshold_limt
= cpu_to_le16(27);
984 auto_rate
->desc_word
[1] = cpu_to_le16(AUTO_RATE_IND
);
986 if (common
->channel_width
== BW_40MHZ
)
987 auto_rate
->desc_word
[7] |= cpu_to_le16(1);
989 if (band
== IEEE80211_BAND_2GHZ
)
990 min_rate
= STD_RATE_01
;
992 min_rate
= STD_RATE_06
;
994 for (ii
= 0, jj
= 0; ii
< ARRAY_SIZE(rsi_rates
); ii
++) {
995 if (rate_bitmap
& BIT(ii
)) {
996 selected_rates
[jj
++] = (rsi_rates
[ii
].bitrate
/ 5);
1000 num_supported_rates
= jj
;
1002 if (common
->vif_info
[0].is_ht
) {
1003 for (ii
= 0; ii
< ARRAY_SIZE(mcs
); ii
++)
1004 selected_rates
[jj
++] = mcs
[ii
];
1005 num_supported_rates
+= ARRAY_SIZE(mcs
);
1006 rate_offset
+= ARRAY_SIZE(mcs
);
1009 if (rate_offset
< (RSI_TBL_SZ
/ 2) - 1) {
1010 for (ii
= jj
; ii
< (RSI_TBL_SZ
/ 2); ii
++) {
1011 selected_rates
[jj
++] = min_rate
;
1016 sort(selected_rates
, jj
, sizeof(u16
), &rsi_compare
, NULL
);
1018 /* mapping the rates to RSI rates */
1019 for (ii
= 0; ii
< jj
; ii
++) {
1020 if (rsi_map_rates(selected_rates
[ii
], &kk
)) {
1021 auto_rate
->supported_rates
[ii
] =
1022 cpu_to_le16(rsi_rates
[kk
].hw_value
);
1024 auto_rate
->supported_rates
[ii
] =
1025 cpu_to_le16(rsi_mcsrates
[kk
]);
1029 /* loading HT rates in the bottom half of the auto rate table */
1030 if (common
->vif_info
[0].is_ht
) {
1031 if (common
->vif_info
[0].sgi
)
1032 auto_rate
->supported_rates
[rate_offset
++] =
1033 cpu_to_le16(RSI_RATE_MCS7_SG
);
1035 for (ii
= rate_offset
, kk
= ARRAY_SIZE(rsi_mcsrates
) - 1;
1036 ii
< rate_offset
+ 2 * ARRAY_SIZE(rsi_mcsrates
); ii
++) {
1037 if (common
->vif_info
[0].sgi
)
1038 auto_rate
->supported_rates
[ii
++] =
1039 cpu_to_le16(rsi_mcsrates
[kk
] | BIT(9));
1040 auto_rate
->supported_rates
[ii
] =
1041 cpu_to_le16(rsi_mcsrates
[kk
--]);
1044 for (; ii
< RSI_TBL_SZ
; ii
++) {
1045 auto_rate
->supported_rates
[ii
] =
1046 cpu_to_le16(rsi_mcsrates
[0]);
1050 auto_rate
->num_supported_rates
= cpu_to_le16(num_supported_rates
* 2);
1051 auto_rate
->moderate_rate_inx
= cpu_to_le16(num_supported_rates
/ 2);
1052 auto_rate
->desc_word
[7] |= cpu_to_le16(0 << 8);
1053 num_supported_rates
*= 2;
1055 auto_rate
->desc_word
[0] = cpu_to_le16((sizeof(*auto_rate
) -
1057 (RSI_WIFI_MGMT_Q
<< 12));
1060 sizeof(struct rsi_auto_rate
));
1061 kfree(selected_rates
);
1063 return rsi_send_internal_mgmt_frame(common
, skb
);
1067 * rsi_inform_bss_status() - This function informs about bss status with the
1068 * help of sta notify params by sending an internal
1069 * management frame to firmware.
1070 * @common: Pointer to the driver private structure.
1071 * @status: Bss status type.
1073 * @qos_enable: Qos is enabled.
1074 * @aid: Aid (unique for all STAs).
1078 void rsi_inform_bss_status(struct rsi_common
*common
,
1080 const unsigned char *bssid
,
1085 rsi_hal_send_sta_notify_frame(common
,
1086 NL80211_IFTYPE_STATION
,
1091 if (common
->min_rate
== 0xffff)
1092 rsi_send_auto_rate_request(common
);
1094 rsi_hal_send_sta_notify_frame(common
,
1095 NL80211_IFTYPE_STATION
,
1104 * rsi_eeprom_read() - This function sends a frame to read the mac address
1106 * @common: Pointer to the driver private structure.
1108 * Return: 0 on success, -1 on failure.
1110 static int rsi_eeprom_read(struct rsi_common
*common
)
1112 struct rsi_mac_frame
*mgmt_frame
;
1113 struct sk_buff
*skb
;
1115 rsi_dbg(MGMT_TX_ZONE
, "%s: Sending EEPROM read req frame\n", __func__
);
1117 skb
= dev_alloc_skb(FRAME_DESC_SZ
);
1119 rsi_dbg(ERR_ZONE
, "%s: Failed in allocation of skb\n",
1124 memset(skb
->data
, 0, FRAME_DESC_SZ
);
1125 mgmt_frame
= (struct rsi_mac_frame
*)skb
->data
;
1128 mgmt_frame
->desc_word
[1] = cpu_to_le16(EEPROM_READ_TYPE
);
1129 mgmt_frame
->desc_word
[0] = cpu_to_le16(RSI_WIFI_MGMT_Q
<< 12);
1130 /* Number of bytes to read */
1131 mgmt_frame
->desc_word
[3] = cpu_to_le16(ETH_ALEN
+
1132 WLAN_MAC_MAGIC_WORD_LEN
+
1133 WLAN_HOST_MODE_LEN
+
1134 WLAN_FW_VERSION_LEN
);
1135 /* Address to read */
1136 mgmt_frame
->desc_word
[4] = cpu_to_le16(WLAN_MAC_EEPROM_ADDR
);
1138 skb_put(skb
, FRAME_DESC_SZ
);
1140 return rsi_send_internal_mgmt_frame(common
, skb
);
1144 * rsi_handle_ta_confirm_type() - This function handles the confirm frames.
1145 * @common: Pointer to the driver private structure.
1146 * @msg: Pointer to received packet.
1148 * Return: 0 on success, -1 on failure.
1150 static int rsi_handle_ta_confirm_type(struct rsi_common
*common
,
1153 u8 sub_type
= (msg
[15] & 0xff);
1156 case BOOTUP_PARAMS_REQUEST
:
1157 rsi_dbg(FSM_ZONE
, "%s: Boot up params confirm received\n",
1159 if (common
->fsm_state
== FSM_BOOT_PARAMS_SENT
) {
1160 if (rsi_eeprom_read(common
)) {
1161 common
->fsm_state
= FSM_CARD_NOT_READY
;
1164 common
->fsm_state
= FSM_EEPROM_READ_MAC_ADDR
;
1168 "%s: Received bootup params cfm in %d state\n",
1169 __func__
, common
->fsm_state
);
1174 case EEPROM_READ_TYPE
:
1175 if (common
->fsm_state
== FSM_EEPROM_READ_MAC_ADDR
) {
1176 if (msg
[16] == MAGIC_WORD
) {
1177 u8 offset
= (FRAME_DESC_SZ
+ WLAN_HOST_MODE_LEN
1178 + WLAN_MAC_MAGIC_WORD_LEN
);
1179 memcpy(common
->mac_addr
,
1182 memcpy(&common
->fw_ver
,
1183 &msg
[offset
+ ETH_ALEN
],
1184 sizeof(struct version_info
));
1187 common
->fsm_state
= FSM_CARD_NOT_READY
;
1190 if (rsi_send_reset_mac(common
))
1193 common
->fsm_state
= FSM_RESET_MAC_SENT
;
1196 "%s: Received eeprom mac addr in %d state\n",
1197 __func__
, common
->fsm_state
);
1203 if (common
->fsm_state
== FSM_RESET_MAC_SENT
) {
1204 rsi_dbg(FSM_ZONE
, "%s: Reset MAC cfm received\n",
1207 if (rsi_load_radio_caps(common
))
1210 common
->fsm_state
= FSM_RADIO_CAPS_SENT
;
1213 "%s: Received reset mac cfm in %d state\n",
1214 __func__
, common
->fsm_state
);
1219 case RADIO_CAPABILITIES
:
1220 if (common
->fsm_state
== FSM_RADIO_CAPS_SENT
) {
1221 common
->rf_reset
= 1;
1222 if (rsi_program_bb_rf(common
)) {
1225 common
->fsm_state
= FSM_BB_RF_PROG_SENT
;
1226 rsi_dbg(FSM_ZONE
, "%s: Radio cap cfm received\n",
1231 "%s: Received radio caps cfm in %d state\n",
1232 __func__
, common
->fsm_state
);
1237 case BB_PROG_VALUES_REQUEST
:
1238 case RF_PROG_VALUES_REQUEST
:
1239 case BBP_PROG_IN_TA
:
1240 rsi_dbg(FSM_ZONE
, "%s: BB/RF cfm received\n", __func__
);
1241 if (common
->fsm_state
== FSM_BB_RF_PROG_SENT
) {
1242 common
->bb_rf_prog_count
--;
1243 if (!common
->bb_rf_prog_count
) {
1244 common
->fsm_state
= FSM_MAC_INIT_DONE
;
1245 return rsi_mac80211_attach(common
);
1253 rsi_dbg(INFO_ZONE
, "%s: Invalid TA confirm pkt received\n",
1259 rsi_dbg(ERR_ZONE
, "%s: Unable to send pkt/Invalid frame received\n",
1265 * rsi_mgmt_pkt_recv() - This function processes the management packets
1266 * recieved from the hardware.
1267 * @common: Pointer to the driver private structure.
1268 * @msg: Pointer to the received packet.
1270 * Return: 0 on success, -1 on failure.
1272 int rsi_mgmt_pkt_recv(struct rsi_common
*common
, u8
*msg
)
1274 s32 msg_len
= (le16_to_cpu(*(__le16
*)&msg
[0]) & 0x0fff);
1275 u16 msg_type
= (msg
[2]);
1278 rsi_dbg(FSM_ZONE
, "%s: Msg Len: %d, Msg Type: %4x\n",
1279 __func__
, msg_len
, msg_type
);
1281 if (msg_type
== TA_CONFIRM_TYPE
) {
1282 return rsi_handle_ta_confirm_type(common
, msg
);
1283 } else if (msg_type
== CARD_READY_IND
) {
1284 rsi_dbg(FSM_ZONE
, "%s: Card ready indication received\n",
1286 if (common
->fsm_state
== FSM_CARD_NOT_READY
) {
1287 rsi_set_default_parameters(common
);
1289 ret
= rsi_load_bootup_params(common
);
1293 common
->fsm_state
= FSM_BOOT_PARAMS_SENT
;
1297 } else if (msg_type
== TX_STATUS_IND
) {
1298 if (msg
[15] == PROBEREQ_CONFIRM
) {
1299 common
->mgmt_q_block
= false;
1300 rsi_dbg(FSM_ZONE
, "%s: Probe confirm received\n",
1304 return rsi_mgmt_pkt_to_core(common
, msg
, msg_len
, msg_type
);