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.
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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.
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43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
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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
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58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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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);