1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * The full GNU General Public License is included in this distribution
25 * in the file called LICENSE.GPL.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *****************************************************************************/
63 #include <net/mac80211.h>
65 #include "iwl-debug.h"
69 #include "fw-api-rs.h"
72 * Will return 0 even if the cmd failed when RFKILL is asserted unless
73 * CMD_WANT_SKB is set in cmd->flags.
75 int iwl_mvm_send_cmd(struct iwl_mvm
*mvm
, struct iwl_host_cmd
*cmd
)
80 * Synchronous commands from this op-mode must hold
81 * the mutex, this ensures we don't try to send two
82 * (or more) synchronous commands at a time.
84 if (!(cmd
->flags
& CMD_ASYNC
))
85 lockdep_assert_held(&mvm
->mutex
);
87 ret
= iwl_trans_send_cmd(mvm
->trans
, cmd
);
90 * If the caller wants the SKB, then don't hide any problems, the
91 * caller might access the response buffer which will be NULL if
94 if (cmd
->flags
& CMD_WANT_SKB
)
97 /* Silently ignore failures if RFKILL is asserted */
98 if (!ret
|| ret
== -ERFKILL
)
103 int iwl_mvm_send_cmd_pdu(struct iwl_mvm
*mvm
, u8 id
,
104 u32 flags
, u16 len
, const void *data
)
106 struct iwl_host_cmd cmd
= {
113 return iwl_mvm_send_cmd(mvm
, &cmd
);
117 * We assume that the caller set the status to the sucess value
119 int iwl_mvm_send_cmd_status(struct iwl_mvm
*mvm
, struct iwl_host_cmd
*cmd
,
122 struct iwl_rx_packet
*pkt
;
123 struct iwl_cmd_response
*resp
;
126 lockdep_assert_held(&mvm
->mutex
);
129 * Only synchronous commands can wait for status,
130 * we use WANT_SKB so the caller can't.
132 if (WARN_ONCE(cmd
->flags
& (CMD_ASYNC
| CMD_WANT_SKB
),
133 "cmd flags %x", cmd
->flags
))
136 cmd
->flags
|= CMD_SYNC
| CMD_WANT_SKB
;
138 ret
= iwl_trans_send_cmd(mvm
->trans
, cmd
);
139 if (ret
== -ERFKILL
) {
141 * The command failed because of RFKILL, don't update
142 * the status, leave it as success and return 0.
150 /* Can happen if RFKILL is asserted */
156 if (pkt
->hdr
.flags
& IWL_CMD_FAILED_MSK
) {
161 resp_len
= le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
;
162 if (WARN_ON_ONCE(resp_len
!= sizeof(pkt
->hdr
) + sizeof(*resp
))) {
167 resp
= (void *)pkt
->data
;
168 *status
= le32_to_cpu(resp
->status
);
175 * We assume that the caller set the status to the sucess value
177 int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm
*mvm
, u8 id
, u16 len
,
178 const void *data
, u32
*status
)
180 struct iwl_host_cmd cmd
= {
186 return iwl_mvm_send_cmd_status(mvm
, &cmd
, status
);
189 #define IWL_DECLARE_RATE_INFO(r) \
190 [IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP
193 * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP
195 static const u8 fw_rate_idx_to_plcp
[IWL_RATE_COUNT
] = {
196 IWL_DECLARE_RATE_INFO(1),
197 IWL_DECLARE_RATE_INFO(2),
198 IWL_DECLARE_RATE_INFO(5),
199 IWL_DECLARE_RATE_INFO(11),
200 IWL_DECLARE_RATE_INFO(6),
201 IWL_DECLARE_RATE_INFO(9),
202 IWL_DECLARE_RATE_INFO(12),
203 IWL_DECLARE_RATE_INFO(18),
204 IWL_DECLARE_RATE_INFO(24),
205 IWL_DECLARE_RATE_INFO(36),
206 IWL_DECLARE_RATE_INFO(48),
207 IWL_DECLARE_RATE_INFO(54),
210 int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags
,
211 enum ieee80211_band band
)
213 int rate
= rate_n_flags
& RATE_LEGACY_RATE_MSK
;
217 /* Legacy rate format, search for match in table */
218 if (band
== IEEE80211_BAND_5GHZ
)
219 band_offset
= IWL_FIRST_OFDM_RATE
;
220 for (idx
= band_offset
; idx
< IWL_RATE_COUNT_LEGACY
; idx
++)
221 if (fw_rate_idx_to_plcp
[idx
] == rate
)
222 return idx
- band_offset
;
227 u8
iwl_mvm_mac80211_idx_to_hwrate(int rate_idx
)
229 /* Get PLCP rate for tx_cmd->rate_n_flags */
230 return fw_rate_idx_to_plcp
[rate_idx
];
233 int iwl_mvm_rx_fw_error(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
,
234 struct iwl_device_cmd
*cmd
)
236 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
237 struct iwl_error_resp
*err_resp
= (void *)pkt
->data
;
239 IWL_ERR(mvm
, "FW Error notification: type 0x%08X cmd_id 0x%02X\n",
240 le32_to_cpu(err_resp
->error_type
), err_resp
->cmd_id
);
241 IWL_ERR(mvm
, "FW Error notification: seq 0x%04X service 0x%08X\n",
242 le16_to_cpu(err_resp
->bad_cmd_seq_num
),
243 le32_to_cpu(err_resp
->error_service
));
244 IWL_ERR(mvm
, "FW Error notification: timestamp 0x%16llX\n",
245 le64_to_cpu(err_resp
->timestamp
));
250 * Returns the first antenna as ANT_[ABC], as defined in iwl-config.h.
251 * The parameter should also be a combination of ANT_[ABC].
253 u8
first_antenna(u8 mask
)
255 BUILD_BUG_ON(ANT_A
!= BIT(0)); /* using ffs is wrong if not */
256 WARN_ON_ONCE(!mask
); /* ffs will return 0 if mask is zeroed */
257 return (u8
)(BIT(ffs(mask
)));
261 * Toggles between TX antennas to send the probe request on.
262 * Receives the bitmask of valid TX antennas and the *index* used
263 * for the last TX, and returns the next valid *index* to use.
264 * In order to set it in the tx_cmd, must do BIT(idx).
266 u8
iwl_mvm_next_antenna(struct iwl_mvm
*mvm
, u8 valid
, u8 last_idx
)
271 for (i
= 0; i
< RATE_MCS_ANT_NUM
; i
++) {
272 ind
= (ind
+ 1) % RATE_MCS_ANT_NUM
;
273 if (valid
& BIT(ind
))
277 WARN_ONCE(1, "Failed to toggle between antennas 0x%x", valid
);
284 } advanced_lookup
[] = {
285 { "NMI_INTERRUPT_WDG", 0x34 },
286 { "SYSASSERT", 0x35 },
287 { "UCODE_VERSION_MISMATCH", 0x37 },
288 { "BAD_COMMAND", 0x38 },
289 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C },
290 { "FATAL_ERROR", 0x3D },
291 { "NMI_TRM_HW_ERR", 0x46 },
292 { "NMI_INTERRUPT_TRM", 0x4C },
293 { "NMI_INTERRUPT_BREAK_POINT", 0x54 },
294 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C },
295 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 },
296 { "NMI_INTERRUPT_HOST", 0x66 },
297 { "NMI_INTERRUPT_ACTION_PT", 0x7C },
298 { "NMI_INTERRUPT_UNKNOWN", 0x84 },
299 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 },
300 { "ADVANCED_SYSASSERT", 0 },
303 static const char *desc_lookup(u32 num
)
307 for (i
= 0; i
< ARRAY_SIZE(advanced_lookup
) - 1; i
++)
308 if (advanced_lookup
[i
].num
== num
)
309 return advanced_lookup
[i
].name
;
311 /* No entry matches 'num', so it is the last: ADVANCED_SYSASSERT */
312 return advanced_lookup
[i
].name
;
316 * Note: This structure is read from the device with IO accesses,
317 * and the reading already does the endian conversion. As it is
318 * read with u32-sized accesses, any members with a different size
319 * need to be ordered correctly though!
321 struct iwl_error_event_table
{
322 u32 valid
; /* (nonzero) valid, (0) log is empty */
323 u32 error_id
; /* type of error */
324 u32 pc
; /* program counter */
325 u32 blink1
; /* branch link */
326 u32 blink2
; /* branch link */
327 u32 ilink1
; /* interrupt link */
328 u32 ilink2
; /* interrupt link */
329 u32 data1
; /* error-specific data */
330 u32 data2
; /* error-specific data */
331 u32 data3
; /* error-specific data */
332 u32 bcon_time
; /* beacon timer */
333 u32 tsf_low
; /* network timestamp function timer */
334 u32 tsf_hi
; /* network timestamp function timer */
335 u32 gp1
; /* GP1 timer register */
336 u32 gp2
; /* GP2 timer register */
337 u32 gp3
; /* GP3 timer register */
338 u32 ucode_ver
; /* uCode version */
339 u32 hw_ver
; /* HW Silicon version */
340 u32 brd_ver
; /* HW board version */
341 u32 log_pc
; /* log program counter */
342 u32 frame_ptr
; /* frame pointer */
343 u32 stack_ptr
; /* stack pointer */
344 u32 hcmd
; /* last host command header */
345 u32 isr0
; /* isr status register LMPM_NIC_ISR0:
347 u32 isr1
; /* isr status register LMPM_NIC_ISR1:
349 u32 isr2
; /* isr status register LMPM_NIC_ISR2:
351 u32 isr3
; /* isr status register LMPM_NIC_ISR3:
353 u32 isr4
; /* isr status register LMPM_NIC_ISR4:
355 u32 isr_pref
; /* isr status register LMPM_NIC_PREF_STAT */
356 u32 wait_event
; /* wait event() caller address */
357 u32 l2p_control
; /* L2pControlField */
358 u32 l2p_duration
; /* L2pDurationField */
359 u32 l2p_mhvalid
; /* L2pMhValidBits */
360 u32 l2p_addr_match
; /* L2pAddrMatchStat */
361 u32 lmpm_pmg_sel
; /* indicate which clocks are turned on
363 u32 u_timestamp
; /* indicate when the date and time of the
365 u32 flow_handler
; /* FH read/write pointers, RX credit */
368 #define ERROR_START_OFFSET (1 * sizeof(u32))
369 #define ERROR_ELEM_SIZE (7 * sizeof(u32))
371 void iwl_mvm_dump_nic_error_log(struct iwl_mvm
*mvm
)
373 struct iwl_trans
*trans
= mvm
->trans
;
374 struct iwl_error_event_table table
;
377 base
= mvm
->error_event_table
;
378 if (mvm
->cur_ucode
== IWL_UCODE_INIT
) {
380 base
= mvm
->fw
->init_errlog_ptr
;
383 base
= mvm
->fw
->inst_errlog_ptr
;
386 if (base
< 0x800000 || base
>= 0x80C000) {
388 "Not valid error log pointer 0x%08X for %s uCode\n",
390 (mvm
->cur_ucode
== IWL_UCODE_INIT
)
395 iwl_trans_read_mem_bytes(trans
, base
, &table
, sizeof(table
));
397 if (ERROR_START_OFFSET
<= table
.valid
* ERROR_ELEM_SIZE
) {
398 IWL_ERR(trans
, "Start IWL Error Log Dump:\n");
399 IWL_ERR(trans
, "Status: 0x%08lX, count: %d\n",
400 mvm
->status
, table
.valid
);
403 trace_iwlwifi_dev_ucode_error(trans
->dev
, table
.error_id
, table
.tsf_low
,
404 table
.data1
, table
.data2
, table
.data3
,
405 table
.blink1
, table
.blink2
, table
.ilink1
,
406 table
.ilink2
, table
.bcon_time
, table
.gp1
,
407 table
.gp2
, table
.gp3
, table
.ucode_ver
,
408 table
.hw_ver
, table
.brd_ver
);
409 IWL_ERR(mvm
, "0x%08X | %-28s\n", table
.error_id
,
410 desc_lookup(table
.error_id
));
411 IWL_ERR(mvm
, "0x%08X | uPc\n", table
.pc
);
412 IWL_ERR(mvm
, "0x%08X | branchlink1\n", table
.blink1
);
413 IWL_ERR(mvm
, "0x%08X | branchlink2\n", table
.blink2
);
414 IWL_ERR(mvm
, "0x%08X | interruptlink1\n", table
.ilink1
);
415 IWL_ERR(mvm
, "0x%08X | interruptlink2\n", table
.ilink2
);
416 IWL_ERR(mvm
, "0x%08X | data1\n", table
.data1
);
417 IWL_ERR(mvm
, "0x%08X | data2\n", table
.data2
);
418 IWL_ERR(mvm
, "0x%08X | data3\n", table
.data3
);
419 IWL_ERR(mvm
, "0x%08X | beacon time\n", table
.bcon_time
);
420 IWL_ERR(mvm
, "0x%08X | tsf low\n", table
.tsf_low
);
421 IWL_ERR(mvm
, "0x%08X | tsf hi\n", table
.tsf_hi
);
422 IWL_ERR(mvm
, "0x%08X | time gp1\n", table
.gp1
);
423 IWL_ERR(mvm
, "0x%08X | time gp2\n", table
.gp2
);
424 IWL_ERR(mvm
, "0x%08X | time gp3\n", table
.gp3
);
425 IWL_ERR(mvm
, "0x%08X | uCode version\n", table
.ucode_ver
);
426 IWL_ERR(mvm
, "0x%08X | hw version\n", table
.hw_ver
);
427 IWL_ERR(mvm
, "0x%08X | board version\n", table
.brd_ver
);
428 IWL_ERR(mvm
, "0x%08X | hcmd\n", table
.hcmd
);
429 IWL_ERR(mvm
, "0x%08X | isr0\n", table
.isr0
);
430 IWL_ERR(mvm
, "0x%08X | isr1\n", table
.isr1
);
431 IWL_ERR(mvm
, "0x%08X | isr2\n", table
.isr2
);
432 IWL_ERR(mvm
, "0x%08X | isr3\n", table
.isr3
);
433 IWL_ERR(mvm
, "0x%08X | isr4\n", table
.isr4
);
434 IWL_ERR(mvm
, "0x%08X | isr_pref\n", table
.isr_pref
);
435 IWL_ERR(mvm
, "0x%08X | wait_event\n", table
.wait_event
);
436 IWL_ERR(mvm
, "0x%08X | l2p_control\n", table
.l2p_control
);
437 IWL_ERR(mvm
, "0x%08X | l2p_duration\n", table
.l2p_duration
);
438 IWL_ERR(mvm
, "0x%08X | l2p_mhvalid\n", table
.l2p_mhvalid
);
439 IWL_ERR(mvm
, "0x%08X | l2p_addr_match\n", table
.l2p_addr_match
);
440 IWL_ERR(mvm
, "0x%08X | lmpm_pmg_sel\n", table
.lmpm_pmg_sel
);
441 IWL_ERR(mvm
, "0x%08X | timestamp\n", table
.u_timestamp
);
442 IWL_ERR(mvm
, "0x%08X | flow_handler\n", table
.flow_handler
);
446 * iwl_mvm_send_lq_cmd() - Send link quality command
447 * @init: This command is sent as part of station initialization right
448 * after station has been added.
450 * The link quality command is sent as the last step of station creation.
451 * This is the special case in which init is set and we call a callback in
452 * this case to clear the state indicating that station creation is in
455 int iwl_mvm_send_lq_cmd(struct iwl_mvm
*mvm
, struct iwl_lq_cmd
*lq
,
458 struct iwl_host_cmd cmd
= {
460 .len
= { sizeof(struct iwl_lq_cmd
), },
465 if (WARN_ON(lq
->sta_id
== IWL_INVALID_STATION
))
468 if (WARN_ON(init
&& (cmd
.flags
& CMD_ASYNC
)))
471 return iwl_mvm_send_cmd(mvm
, &cmd
);