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) 2010 - 2012 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) 2010 - 2012 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 <linux/init.h>
64 #include <linux/kernel.h>
65 #include <linux/module.h>
66 #include <linux/dma-mapping.h>
67 #include <net/net_namespace.h>
68 #include <linux/netdevice.h>
69 #include <net/cfg80211.h>
70 #include <net/mac80211.h>
71 #include <net/netlink.h>
75 #include "iwl-debug.h"
78 #include "iwl-testmode.h"
79 #include "iwl-trans.h"
84 /* Periphery registers absolute lower bound. This is used in order to
85 * differentiate registery access through HBUS_TARG_PRPH_* and
86 * HBUS_TARG_MEM_* accesses.
88 #define IWL_TM_ABS_PRPH_START (0xA00000)
90 /* The TLVs used in the gnl message policy between the kernel module and
91 * user space application. iwl_testmode_gnl_msg_policy is to be carried
92 * through the NL80211_CMD_TESTMODE channel regulated by nl80211.
96 struct nla_policy iwl_testmode_gnl_msg_policy
[IWL_TM_ATTR_MAX
] = {
97 [IWL_TM_ATTR_COMMAND
] = { .type
= NLA_U32
, },
99 [IWL_TM_ATTR_UCODE_CMD_ID
] = { .type
= NLA_U8
, },
100 [IWL_TM_ATTR_UCODE_CMD_DATA
] = { .type
= NLA_UNSPEC
, },
102 [IWL_TM_ATTR_REG_OFFSET
] = { .type
= NLA_U32
, },
103 [IWL_TM_ATTR_REG_VALUE8
] = { .type
= NLA_U8
, },
104 [IWL_TM_ATTR_REG_VALUE32
] = { .type
= NLA_U32
, },
106 [IWL_TM_ATTR_SYNC_RSP
] = { .type
= NLA_UNSPEC
, },
107 [IWL_TM_ATTR_UCODE_RX_PKT
] = { .type
= NLA_UNSPEC
, },
109 [IWL_TM_ATTR_EEPROM
] = { .type
= NLA_UNSPEC
, },
111 [IWL_TM_ATTR_TRACE_ADDR
] = { .type
= NLA_UNSPEC
, },
112 [IWL_TM_ATTR_TRACE_DUMP
] = { .type
= NLA_UNSPEC
, },
113 [IWL_TM_ATTR_TRACE_SIZE
] = { .type
= NLA_U32
, },
115 [IWL_TM_ATTR_FIXRATE
] = { .type
= NLA_U32
, },
117 [IWL_TM_ATTR_UCODE_OWNER
] = { .type
= NLA_U8
, },
119 [IWL_TM_ATTR_MEM_ADDR
] = { .type
= NLA_U32
, },
120 [IWL_TM_ATTR_BUFFER_SIZE
] = { .type
= NLA_U32
, },
121 [IWL_TM_ATTR_BUFFER_DUMP
] = { .type
= NLA_UNSPEC
, },
123 [IWL_TM_ATTR_FW_VERSION
] = { .type
= NLA_U32
, },
124 [IWL_TM_ATTR_DEVICE_ID
] = { .type
= NLA_U32
, },
125 [IWL_TM_ATTR_FW_TYPE
] = { .type
= NLA_U32
, },
126 [IWL_TM_ATTR_FW_INST_SIZE
] = { .type
= NLA_U32
, },
127 [IWL_TM_ATTR_FW_DATA_SIZE
] = { .type
= NLA_U32
, },
129 [IWL_TM_ATTR_ENABLE_NOTIFICATION
] = {.type
= NLA_FLAG
, },
133 * See the struct iwl_rx_packet in iwl-commands.h for the format of the
134 * received events from the device
136 static inline int get_event_length(struct iwl_rx_cmd_buffer
*rxb
)
138 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
140 return le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
;
147 * This function multicasts the spontaneous messages from the device to the
148 * user space. It is invoked whenever there is a received messages
149 * from the device. This function is called within the ISR of the rx handlers
152 * The parsing of the message content is left to the user space application,
153 * The message content is treated as unattacked raw data and is encapsulated
154 * with IWL_TM_ATTR_UCODE_RX_PKT multicasting to the user space.
156 * @priv: the instance of iwlwifi device
157 * @rxb: pointer to rx data content received by the ISR
159 * See the message policies and TLVs in iwl_testmode_gnl_msg_policy[].
160 * For the messages multicasting to the user application, the mandatory
162 * IWL_TM_ATTR_COMMAND must be IWL_TM_CMD_DEV2APP_UCODE_RX_PKT
163 * IWL_TM_ATTR_UCODE_RX_PKT for carrying the message content
166 static void iwl_testmode_ucode_rx_pkt(struct iwl_priv
*priv
,
167 struct iwl_rx_cmd_buffer
*rxb
)
169 struct ieee80211_hw
*hw
= priv
->hw
;
174 data
= (void *)rxb_addr(rxb
);
175 length
= get_event_length(rxb
);
177 if (!data
|| length
== 0)
180 skb
= cfg80211_testmode_alloc_event_skb(hw
->wiphy
, 20 + length
,
184 "Run out of memory for messages to user space ?\n");
187 NLA_PUT_U32(skb
, IWL_TM_ATTR_COMMAND
, IWL_TM_CMD_DEV2APP_UCODE_RX_PKT
);
188 /* the length doesn't include len_n_flags field, so add it manually */
189 NLA_PUT(skb
, IWL_TM_ATTR_UCODE_RX_PKT
, length
+ sizeof(__le32
), data
);
190 cfg80211_testmode_event(skb
, GFP_ATOMIC
);
195 IWL_ERR(priv
, "Ouch, overran buffer, check allocation!\n");
198 void iwl_testmode_init(struct iwl_priv
*priv
)
200 priv
->pre_rx_handler
= NULL
;
201 priv
->testmode_trace
.trace_enabled
= false;
202 priv
->testmode_mem
.read_in_progress
= false;
205 static void iwl_mem_cleanup(struct iwl_priv
*priv
)
207 if (priv
->testmode_mem
.read_in_progress
) {
208 kfree(priv
->testmode_mem
.buff_addr
);
209 priv
->testmode_mem
.buff_addr
= NULL
;
210 priv
->testmode_mem
.buff_size
= 0;
211 priv
->testmode_mem
.num_chunks
= 0;
212 priv
->testmode_mem
.read_in_progress
= false;
216 static void iwl_trace_cleanup(struct iwl_priv
*priv
)
218 if (priv
->testmode_trace
.trace_enabled
) {
219 if (priv
->testmode_trace
.cpu_addr
&&
220 priv
->testmode_trace
.dma_addr
)
221 dma_free_coherent(trans(priv
)->dev
,
222 priv
->testmode_trace
.total_size
,
223 priv
->testmode_trace
.cpu_addr
,
224 priv
->testmode_trace
.dma_addr
);
225 priv
->testmode_trace
.trace_enabled
= false;
226 priv
->testmode_trace
.cpu_addr
= NULL
;
227 priv
->testmode_trace
.trace_addr
= NULL
;
228 priv
->testmode_trace
.dma_addr
= 0;
229 priv
->testmode_trace
.buff_size
= 0;
230 priv
->testmode_trace
.total_size
= 0;
235 void iwl_testmode_cleanup(struct iwl_priv
*priv
)
237 iwl_trace_cleanup(priv
);
238 iwl_mem_cleanup(priv
);
243 * This function handles the user application commands to the ucode.
245 * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_CMD_ID and
246 * IWL_TM_ATTR_UCODE_CMD_DATA and calls to the handler to send the
247 * host command to the ucode.
249 * If any mandatory field is missing, -ENOMSG is replied to the user space
250 * application; otherwise, waits for the host command to be sent and checks
251 * the return code. In case or error, it is returned, otherwise a reply is
252 * allocated and the reply RX packet
255 * @hw: ieee80211_hw object that represents the device
256 * @tb: gnl message fields from the user space
258 static int iwl_testmode_ucode(struct ieee80211_hw
*hw
, struct nlattr
**tb
)
260 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
261 struct iwl_host_cmd cmd
;
262 struct iwl_rx_packet
*pkt
;
269 memset(&cmd
, 0, sizeof(struct iwl_host_cmd
));
271 if (!tb
[IWL_TM_ATTR_UCODE_CMD_ID
] ||
272 !tb
[IWL_TM_ATTR_UCODE_CMD_DATA
]) {
273 IWL_ERR(priv
, "Missing ucode command mandatory fields\n");
277 cmd
.flags
= CMD_ON_DEMAND
| CMD_SYNC
;
278 cmd_want_skb
= nla_get_flag(tb
[IWL_TM_ATTR_UCODE_CMD_SKB
]);
280 cmd
.flags
|= CMD_WANT_SKB
;
282 cmd
.id
= nla_get_u8(tb
[IWL_TM_ATTR_UCODE_CMD_ID
]);
283 cmd
.data
[0] = nla_data(tb
[IWL_TM_ATTR_UCODE_CMD_DATA
]);
284 cmd
.len
[0] = nla_len(tb
[IWL_TM_ATTR_UCODE_CMD_DATA
]);
285 cmd
.dataflags
[0] = IWL_HCMD_DFL_NOCOPY
;
286 IWL_DEBUG_INFO(priv
, "testmode ucode command ID 0x%x, flags 0x%x,"
287 " len %d\n", cmd
.id
, cmd
.flags
, cmd
.len
[0]);
289 ret
= iwl_dvm_send_cmd(priv
, &cmd
);
291 IWL_ERR(priv
, "Failed to send hcmd\n");
297 /* Handling return of SKB to the user */
300 IWL_ERR(priv
, "HCMD received a null response packet\n");
304 reply_len
= le32_to_cpu(pkt
->len_n_flags
) & FH_RSCSR_FRAME_SIZE_MSK
;
305 skb
= cfg80211_testmode_alloc_reply_skb(hw
->wiphy
, reply_len
+ 20);
306 reply_buf
= kmalloc(reply_len
, GFP_KERNEL
);
307 if (!skb
|| !reply_buf
) {
313 /* The reply is in a page, that we cannot send to user space. */
314 memcpy(reply_buf
, &(pkt
->hdr
), reply_len
);
317 NLA_PUT_U32(skb
, IWL_TM_ATTR_COMMAND
, IWL_TM_CMD_DEV2APP_UCODE_RX_PKT
);
318 NLA_PUT(skb
, IWL_TM_ATTR_UCODE_RX_PKT
, reply_len
, reply_buf
);
319 return cfg80211_testmode_reply(skb
);
322 IWL_DEBUG_INFO(priv
, "Failed creating NL attributes\n");
328 * This function handles the user application commands for register access.
330 * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
331 * handlers respectively.
333 * If it's an unknown commdn ID, -ENOSYS is returned; or -ENOMSG if the
334 * mandatory fields(IWL_TM_ATTR_REG_OFFSET,IWL_TM_ATTR_REG_VALUE32,
335 * IWL_TM_ATTR_REG_VALUE8) are missing; Otherwise 0 is replied indicating
336 * the success of the command execution.
338 * If IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_READ32, the register read
339 * value is returned with IWL_TM_ATTR_REG_VALUE32.
341 * @hw: ieee80211_hw object that represents the device
342 * @tb: gnl message fields from the user space
344 static int iwl_testmode_reg(struct ieee80211_hw
*hw
, struct nlattr
**tb
)
346 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
352 if (!tb
[IWL_TM_ATTR_REG_OFFSET
]) {
353 IWL_ERR(priv
, "Missing register offset\n");
356 ofs
= nla_get_u32(tb
[IWL_TM_ATTR_REG_OFFSET
]);
357 IWL_INFO(priv
, "testmode register access command offset 0x%x\n", ofs
);
359 /* Allow access only to FH/CSR/HBUS in direct mode.
360 Since we don't have the upper bounds for the CSR and HBUS segments,
361 we will use only the upper bound of FH for sanity check. */
362 cmd
= nla_get_u32(tb
[IWL_TM_ATTR_COMMAND
]);
363 if ((cmd
== IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32
||
364 cmd
== IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32
||
365 cmd
== IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8
) &&
366 (ofs
>= FH_MEM_UPPER_BOUND
)) {
367 IWL_ERR(priv
, "offset out of segment (0x0 - 0x%x)\n",
373 case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32
:
374 val32
= iwl_read_direct32(trans(priv
), ofs
);
375 IWL_INFO(priv
, "32bit value to read 0x%x\n", val32
);
377 skb
= cfg80211_testmode_alloc_reply_skb(hw
->wiphy
, 20);
379 IWL_ERR(priv
, "Memory allocation fail\n");
382 NLA_PUT_U32(skb
, IWL_TM_ATTR_REG_VALUE32
, val32
);
383 status
= cfg80211_testmode_reply(skb
);
385 IWL_ERR(priv
, "Error sending msg : %d\n", status
);
387 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32
:
388 if (!tb
[IWL_TM_ATTR_REG_VALUE32
]) {
389 IWL_ERR(priv
, "Missing value to write\n");
392 val32
= nla_get_u32(tb
[IWL_TM_ATTR_REG_VALUE32
]);
393 IWL_INFO(priv
, "32bit value to write 0x%x\n", val32
);
394 iwl_write_direct32(trans(priv
), ofs
, val32
);
397 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8
:
398 if (!tb
[IWL_TM_ATTR_REG_VALUE8
]) {
399 IWL_ERR(priv
, "Missing value to write\n");
402 val8
= nla_get_u8(tb
[IWL_TM_ATTR_REG_VALUE8
]);
403 IWL_INFO(priv
, "8bit value to write 0x%x\n", val8
);
404 iwl_write8(trans(priv
), ofs
, val8
);
408 IWL_ERR(priv
, "Unknown testmode register command ID\n");
420 static int iwl_testmode_cfg_init_calib(struct iwl_priv
*priv
)
422 struct iwl_notification_wait calib_wait
;
425 iwl_init_notification_wait(&priv
->notif_wait
, &calib_wait
,
426 CALIBRATION_COMPLETE_NOTIFICATION
,
428 ret
= iwl_init_alive_start(priv
);
430 IWL_ERR(priv
, "Fail init calibration: %d\n", ret
);
431 goto cfg_init_calib_error
;
434 ret
= iwl_wait_notification(&priv
->notif_wait
, &calib_wait
, 2 * HZ
);
436 IWL_ERR(priv
, "Error detecting"
437 " CALIBRATION_COMPLETE_NOTIFICATION: %d\n", ret
);
440 cfg_init_calib_error
:
441 iwl_remove_notification(&priv
->notif_wait
, &calib_wait
);
446 * This function handles the user application commands for driver.
448 * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
449 * handlers respectively.
451 * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned
452 * value of the actual command execution is replied to the user application.
454 * If there's any message responding to the user space, IWL_TM_ATTR_SYNC_RSP
455 * is used for carry the message while IWL_TM_ATTR_COMMAND must set to
456 * IWL_TM_CMD_DEV2APP_SYNC_RSP.
458 * @hw: ieee80211_hw object that represents the device
459 * @tb: gnl message fields from the user space
461 static int iwl_testmode_driver(struct ieee80211_hw
*hw
, struct nlattr
**tb
)
463 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
464 struct iwl_trans
*trans
= trans(priv
);
466 unsigned char *rsp_data_ptr
= NULL
;
467 int status
= 0, rsp_data_len
= 0;
468 u32 devid
, inst_size
= 0, data_size
= 0;
470 switch (nla_get_u32(tb
[IWL_TM_ATTR_COMMAND
])) {
471 case IWL_TM_CMD_APP2DEV_GET_DEVICENAME
:
472 rsp_data_ptr
= (unsigned char *)cfg(priv
)->name
;
473 rsp_data_len
= strlen(cfg(priv
)->name
);
474 skb
= cfg80211_testmode_alloc_reply_skb(hw
->wiphy
,
477 IWL_ERR(priv
, "Memory allocation fail\n");
480 NLA_PUT_U32(skb
, IWL_TM_ATTR_COMMAND
,
481 IWL_TM_CMD_DEV2APP_SYNC_RSP
);
482 NLA_PUT(skb
, IWL_TM_ATTR_SYNC_RSP
,
483 rsp_data_len
, rsp_data_ptr
);
484 status
= cfg80211_testmode_reply(skb
);
486 IWL_ERR(priv
, "Error sending msg : %d\n", status
);
489 case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW
:
490 status
= iwl_load_ucode_wait_alive(priv
, IWL_UCODE_INIT
);
492 IWL_ERR(priv
, "Error loading init ucode: %d\n", status
);
495 case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB
:
496 iwl_testmode_cfg_init_calib(priv
);
497 priv
->ucode_loaded
= false;
498 iwl_trans_stop_device(trans
);
501 case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW
:
502 status
= iwl_load_ucode_wait_alive(priv
, IWL_UCODE_REGULAR
);
505 "Error loading runtime ucode: %d\n", status
);
508 status
= iwl_alive_start(priv
);
511 "Error starting the device: %d\n", status
);
514 case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW
:
515 iwl_scan_cancel_timeout(priv
, 200);
516 priv
->ucode_loaded
= false;
517 iwl_trans_stop_device(trans
);
518 status
= iwl_load_ucode_wait_alive(priv
, IWL_UCODE_WOWLAN
);
521 "Error loading WOWLAN ucode: %d\n", status
);
524 status
= iwl_alive_start(priv
);
527 "Error starting the device: %d\n", status
);
530 case IWL_TM_CMD_APP2DEV_GET_EEPROM
:
531 if (priv
->shrd
->eeprom
) {
532 skb
= cfg80211_testmode_alloc_reply_skb(hw
->wiphy
,
533 cfg(priv
)->base_params
->eeprom_size
+ 20);
535 IWL_ERR(priv
, "Memory allocation fail\n");
538 NLA_PUT_U32(skb
, IWL_TM_ATTR_COMMAND
,
539 IWL_TM_CMD_DEV2APP_EEPROM_RSP
);
540 NLA_PUT(skb
, IWL_TM_ATTR_EEPROM
,
541 cfg(priv
)->base_params
->eeprom_size
,
543 status
= cfg80211_testmode_reply(skb
);
545 IWL_ERR(priv
, "Error sending msg : %d\n",
551 case IWL_TM_CMD_APP2DEV_FIXRATE_REQ
:
552 if (!tb
[IWL_TM_ATTR_FIXRATE
]) {
553 IWL_ERR(priv
, "Missing fixrate setting\n");
556 priv
->tm_fixed_rate
= nla_get_u32(tb
[IWL_TM_ATTR_FIXRATE
]);
559 case IWL_TM_CMD_APP2DEV_GET_FW_VERSION
:
560 IWL_INFO(priv
, "uCode version raw: 0x%x\n",
561 priv
->fw
->ucode_ver
);
563 skb
= cfg80211_testmode_alloc_reply_skb(hw
->wiphy
, 20);
565 IWL_ERR(priv
, "Memory allocation fail\n");
568 NLA_PUT_U32(skb
, IWL_TM_ATTR_FW_VERSION
,
569 priv
->fw
->ucode_ver
);
570 status
= cfg80211_testmode_reply(skb
);
572 IWL_ERR(priv
, "Error sending msg : %d\n", status
);
575 case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID
:
576 devid
= trans(priv
)->hw_id
;
577 IWL_INFO(priv
, "hw version: 0x%x\n", devid
);
579 skb
= cfg80211_testmode_alloc_reply_skb(hw
->wiphy
, 20);
581 IWL_ERR(priv
, "Memory allocation fail\n");
584 NLA_PUT_U32(skb
, IWL_TM_ATTR_DEVICE_ID
, devid
);
585 status
= cfg80211_testmode_reply(skb
);
587 IWL_ERR(priv
, "Error sending msg : %d\n", status
);
590 case IWL_TM_CMD_APP2DEV_GET_FW_INFO
:
591 skb
= cfg80211_testmode_alloc_reply_skb(hw
->wiphy
, 20 + 8);
593 IWL_ERR(priv
, "Memory allocation fail\n");
596 if (!priv
->ucode_loaded
) {
597 IWL_ERR(priv
, "No uCode has not been loaded\n");
600 switch (priv
->shrd
->ucode_type
) {
601 case IWL_UCODE_REGULAR
:
602 inst_size
= priv
->fw
->ucode_rt
.code
.len
;
603 data_size
= priv
->fw
->ucode_rt
.data
.len
;
606 inst_size
= priv
->fw
->ucode_init
.code
.len
;
607 data_size
= priv
->fw
->ucode_init
.data
.len
;
609 case IWL_UCODE_WOWLAN
:
610 inst_size
= priv
->fw
->ucode_wowlan
.code
.len
;
611 data_size
= priv
->fw
->ucode_wowlan
.data
.len
;
614 IWL_ERR(priv
, "Unsupported uCode type\n");
618 NLA_PUT_U32(skb
, IWL_TM_ATTR_FW_TYPE
, priv
->shrd
->ucode_type
);
619 NLA_PUT_U32(skb
, IWL_TM_ATTR_FW_INST_SIZE
, inst_size
);
620 NLA_PUT_U32(skb
, IWL_TM_ATTR_FW_DATA_SIZE
, data_size
);
621 status
= cfg80211_testmode_reply(skb
);
623 IWL_ERR(priv
, "Error sending msg : %d\n", status
);
627 IWL_ERR(priv
, "Unknown testmode driver command ID\n");
639 * This function handles the user application commands for uCode trace
641 * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
642 * handlers respectively.
644 * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned
645 * value of the actual command execution is replied to the user application.
647 * @hw: ieee80211_hw object that represents the device
648 * @tb: gnl message fields from the user space
650 static int iwl_testmode_trace(struct ieee80211_hw
*hw
, struct nlattr
**tb
)
652 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
655 struct device
*dev
= trans(priv
)->dev
;
657 switch (nla_get_u32(tb
[IWL_TM_ATTR_COMMAND
])) {
658 case IWL_TM_CMD_APP2DEV_BEGIN_TRACE
:
659 if (priv
->testmode_trace
.trace_enabled
)
662 if (!tb
[IWL_TM_ATTR_TRACE_SIZE
])
663 priv
->testmode_trace
.buff_size
= TRACE_BUFF_SIZE_DEF
;
665 priv
->testmode_trace
.buff_size
=
666 nla_get_u32(tb
[IWL_TM_ATTR_TRACE_SIZE
]);
667 if (!priv
->testmode_trace
.buff_size
)
669 if (priv
->testmode_trace
.buff_size
< TRACE_BUFF_SIZE_MIN
||
670 priv
->testmode_trace
.buff_size
> TRACE_BUFF_SIZE_MAX
)
673 priv
->testmode_trace
.total_size
=
674 priv
->testmode_trace
.buff_size
+ TRACE_BUFF_PADD
;
675 priv
->testmode_trace
.cpu_addr
=
676 dma_alloc_coherent(dev
,
677 priv
->testmode_trace
.total_size
,
678 &priv
->testmode_trace
.dma_addr
,
680 if (!priv
->testmode_trace
.cpu_addr
)
682 priv
->testmode_trace
.trace_enabled
= true;
683 priv
->testmode_trace
.trace_addr
= (u8
*)PTR_ALIGN(
684 priv
->testmode_trace
.cpu_addr
, 0x100);
685 memset(priv
->testmode_trace
.trace_addr
, 0x03B,
686 priv
->testmode_trace
.buff_size
);
687 skb
= cfg80211_testmode_alloc_reply_skb(hw
->wiphy
,
688 sizeof(priv
->testmode_trace
.dma_addr
) + 20);
690 IWL_ERR(priv
, "Memory allocation fail\n");
691 iwl_trace_cleanup(priv
);
694 NLA_PUT(skb
, IWL_TM_ATTR_TRACE_ADDR
,
695 sizeof(priv
->testmode_trace
.dma_addr
),
696 (u64
*)&priv
->testmode_trace
.dma_addr
);
697 status
= cfg80211_testmode_reply(skb
);
699 IWL_ERR(priv
, "Error sending msg : %d\n", status
);
701 priv
->testmode_trace
.num_chunks
=
702 DIV_ROUND_UP(priv
->testmode_trace
.buff_size
,
706 case IWL_TM_CMD_APP2DEV_END_TRACE
:
707 iwl_trace_cleanup(priv
);
710 IWL_ERR(priv
, "Unknown testmode mem command ID\n");
717 if (nla_get_u32(tb
[IWL_TM_ATTR_COMMAND
]) ==
718 IWL_TM_CMD_APP2DEV_BEGIN_TRACE
)
719 iwl_trace_cleanup(priv
);
723 static int iwl_testmode_trace_dump(struct ieee80211_hw
*hw
,
725 struct netlink_callback
*cb
)
727 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
730 if (priv
->testmode_trace
.trace_enabled
&&
731 priv
->testmode_trace
.trace_addr
) {
733 if (idx
>= priv
->testmode_trace
.num_chunks
)
735 length
= DUMP_CHUNK_SIZE
;
736 if (((idx
+ 1) == priv
->testmode_trace
.num_chunks
) &&
737 (priv
->testmode_trace
.buff_size
% DUMP_CHUNK_SIZE
))
738 length
= priv
->testmode_trace
.buff_size
%
741 NLA_PUT(skb
, IWL_TM_ATTR_TRACE_DUMP
, length
,
742 priv
->testmode_trace
.trace_addr
+
743 (DUMP_CHUNK_SIZE
* idx
));
755 * This function handles the user application switch ucode ownership.
757 * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_OWNER and
758 * decide who the current owner of the uCode
760 * If the current owner is OWNERSHIP_TM, then the only host command
761 * can deliver to uCode is from testmode, all the other host commands
764 * default driver is the owner of uCode in normal operational mode
766 * @hw: ieee80211_hw object that represents the device
767 * @tb: gnl message fields from the user space
769 static int iwl_testmode_ownership(struct ieee80211_hw
*hw
, struct nlattr
**tb
)
771 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
774 if (!tb
[IWL_TM_ATTR_UCODE_OWNER
]) {
775 IWL_ERR(priv
, "Missing ucode owner\n");
779 owner
= nla_get_u8(tb
[IWL_TM_ATTR_UCODE_OWNER
]);
780 if (owner
== IWL_OWNERSHIP_DRIVER
) {
781 priv
->ucode_owner
= owner
;
782 priv
->pre_rx_handler
= NULL
;
783 } else if (owner
== IWL_OWNERSHIP_TM
) {
784 priv
->pre_rx_handler
= iwl_testmode_ucode_rx_pkt
;
785 priv
->ucode_owner
= owner
;
787 IWL_ERR(priv
, "Invalid owner\n");
793 static int iwl_testmode_indirect_read(struct iwl_priv
*priv
, u32 addr
, u32 size
)
795 struct iwl_trans
*trans
= trans(priv
);
801 priv
->testmode_mem
.buff_size
= size
;
802 priv
->testmode_mem
.buff_addr
=
803 kmalloc(priv
->testmode_mem
.buff_size
, GFP_KERNEL
);
804 if (priv
->testmode_mem
.buff_addr
== NULL
)
807 /* Hard-coded periphery absolute address */
808 if (IWL_TM_ABS_PRPH_START
<= addr
&&
809 addr
< IWL_TM_ABS_PRPH_START
+ PRPH_END
) {
810 spin_lock_irqsave(&trans
->reg_lock
, flags
);
811 iwl_grab_nic_access(trans
);
812 iwl_write32(trans
, HBUS_TARG_PRPH_RADDR
,
814 for (i
= 0; i
< size
; i
+= 4)
815 *(u32
*)(priv
->testmode_mem
.buff_addr
+ i
) =
816 iwl_read32(trans
, HBUS_TARG_PRPH_RDAT
);
817 iwl_release_nic_access(trans
);
818 spin_unlock_irqrestore(&trans
->reg_lock
, flags
);
819 } else { /* target memory (SRAM) */
820 _iwl_read_targ_mem_words(trans
, addr
,
821 priv
->testmode_mem
.buff_addr
,
822 priv
->testmode_mem
.buff_size
/ 4);
825 priv
->testmode_mem
.num_chunks
=
826 DIV_ROUND_UP(priv
->testmode_mem
.buff_size
, DUMP_CHUNK_SIZE
);
827 priv
->testmode_mem
.read_in_progress
= true;
832 static int iwl_testmode_indirect_write(struct iwl_priv
*priv
, u32 addr
,
833 u32 size
, unsigned char *buf
)
835 struct iwl_trans
*trans
= trans(priv
);
839 if (IWL_TM_ABS_PRPH_START
<= addr
&&
840 addr
< IWL_TM_ABS_PRPH_START
+ PRPH_END
) {
841 /* Periphery writes can be 1-3 bytes long, or DWORDs */
843 memcpy(&val
, buf
, size
);
844 spin_lock_irqsave(&trans
->reg_lock
, flags
);
845 iwl_grab_nic_access(trans
);
846 iwl_write32(trans
, HBUS_TARG_PRPH_WADDR
,
847 (addr
& 0x0000FFFF) |
849 iwl_write32(trans
, HBUS_TARG_PRPH_WDAT
, val
);
850 iwl_release_nic_access(trans
);
851 /* needed after consecutive writes w/o read */
853 spin_unlock_irqrestore(&trans
->reg_lock
, flags
);
857 for (i
= 0; i
< size
; i
+= 4)
858 iwl_write_prph(trans
, addr
+i
,
861 } else if (iwlagn_hw_valid_rtc_data_addr(addr
) ||
862 (IWLAGN_RTC_INST_LOWER_BOUND
<= addr
&&
863 addr
< IWLAGN_RTC_INST_UPPER_BOUND
)) {
864 _iwl_write_targ_mem_words(trans
, addr
, buf
, size
/4);
871 * This function handles the user application commands for SRAM data dump
873 * It retrieves the mandatory fields IWL_TM_ATTR_SRAM_ADDR and
874 * IWL_TM_ATTR_SRAM_SIZE to decide the memory area for SRAM data reading
876 * Several error will be retured, -EBUSY if the SRAM data retrieved by
877 * previous command has not been delivered to userspace, or -ENOMSG if
878 * the mandatory fields (IWL_TM_ATTR_SRAM_ADDR,IWL_TM_ATTR_SRAM_SIZE)
879 * are missing, or -ENOMEM if the buffer allocation fails.
881 * Otherwise 0 is replied indicating the success of the SRAM reading.
883 * @hw: ieee80211_hw object that represents the device
884 * @tb: gnl message fields from the user space
886 static int iwl_testmode_indirect_mem(struct ieee80211_hw
*hw
,
889 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
893 /* Both read and write should be blocked, for atomicity */
894 if (priv
->testmode_mem
.read_in_progress
)
897 cmd
= nla_get_u32(tb
[IWL_TM_ATTR_COMMAND
]);
898 if (!tb
[IWL_TM_ATTR_MEM_ADDR
]) {
899 IWL_ERR(priv
, "Error finding memory offset address\n");
902 addr
= nla_get_u32(tb
[IWL_TM_ATTR_MEM_ADDR
]);
903 if (!tb
[IWL_TM_ATTR_BUFFER_SIZE
]) {
904 IWL_ERR(priv
, "Error finding size for memory reading\n");
907 size
= nla_get_u32(tb
[IWL_TM_ATTR_BUFFER_SIZE
]);
909 if (cmd
== IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ
)
910 return iwl_testmode_indirect_read(priv
, addr
, size
);
912 if (!tb
[IWL_TM_ATTR_BUFFER_DUMP
])
914 buf
= (unsigned char *) nla_data(tb
[IWL_TM_ATTR_BUFFER_DUMP
]);
915 return iwl_testmode_indirect_write(priv
, addr
, size
, buf
);
919 static int iwl_testmode_buffer_dump(struct ieee80211_hw
*hw
,
921 struct netlink_callback
*cb
)
923 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
926 if (priv
->testmode_mem
.read_in_progress
) {
928 if (idx
>= priv
->testmode_mem
.num_chunks
) {
929 iwl_mem_cleanup(priv
);
932 length
= DUMP_CHUNK_SIZE
;
933 if (((idx
+ 1) == priv
->testmode_mem
.num_chunks
) &&
934 (priv
->testmode_mem
.buff_size
% DUMP_CHUNK_SIZE
))
935 length
= priv
->testmode_mem
.buff_size
%
938 NLA_PUT(skb
, IWL_TM_ATTR_BUFFER_DUMP
, length
,
939 priv
->testmode_mem
.buff_addr
+
940 (DUMP_CHUNK_SIZE
* idx
));
951 static int iwl_testmode_notifications(struct ieee80211_hw
*hw
,
954 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
957 enable
= nla_get_flag(tb
[IWL_TM_ATTR_ENABLE_NOTIFICATION
]);
959 priv
->pre_rx_handler
= iwl_testmode_ucode_rx_pkt
;
961 priv
->pre_rx_handler
= NULL
;
966 /* The testmode gnl message handler that takes the gnl message from the
967 * user space and parses it per the policy iwl_testmode_gnl_msg_policy, then
968 * invoke the corresponding handlers.
970 * This function is invoked when there is user space application sending
971 * gnl message through the testmode tunnel NL80211_CMD_TESTMODE regulated
974 * It retrieves the mandatory field, IWL_TM_ATTR_COMMAND, before
975 * dispatching it to the corresponding handler.
977 * If IWL_TM_ATTR_COMMAND is missing, -ENOMSG is replied to user application;
978 * -ENOSYS is replied to the user application if the command is unknown;
979 * Otherwise, the command is dispatched to the respective handler.
981 * @hw: ieee80211_hw object that represents the device
982 * @data: pointer to user space message
983 * @len: length in byte of @data
985 int iwlagn_mac_testmode_cmd(struct ieee80211_hw
*hw
, void *data
, int len
)
987 struct nlattr
*tb
[IWL_TM_ATTR_MAX
];
988 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
991 result
= nla_parse(tb
, IWL_TM_ATTR_MAX
- 1, data
, len
,
992 iwl_testmode_gnl_msg_policy
);
994 IWL_ERR(priv
, "Error parsing the gnl message : %d\n", result
);
998 /* IWL_TM_ATTR_COMMAND is absolutely mandatory */
999 if (!tb
[IWL_TM_ATTR_COMMAND
]) {
1000 IWL_ERR(priv
, "Missing testmode command type\n");
1003 /* in case multiple accesses to the device happens */
1004 mutex_lock(&priv
->mutex
);
1006 switch (nla_get_u32(tb
[IWL_TM_ATTR_COMMAND
])) {
1007 case IWL_TM_CMD_APP2DEV_UCODE
:
1008 IWL_DEBUG_INFO(priv
, "testmode cmd to uCode\n");
1009 result
= iwl_testmode_ucode(hw
, tb
);
1011 case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32
:
1012 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32
:
1013 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8
:
1014 IWL_DEBUG_INFO(priv
, "testmode cmd to register\n");
1015 result
= iwl_testmode_reg(hw
, tb
);
1017 case IWL_TM_CMD_APP2DEV_GET_DEVICENAME
:
1018 case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW
:
1019 case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB
:
1020 case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW
:
1021 case IWL_TM_CMD_APP2DEV_GET_EEPROM
:
1022 case IWL_TM_CMD_APP2DEV_FIXRATE_REQ
:
1023 case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW
:
1024 case IWL_TM_CMD_APP2DEV_GET_FW_VERSION
:
1025 case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID
:
1026 case IWL_TM_CMD_APP2DEV_GET_FW_INFO
:
1027 IWL_DEBUG_INFO(priv
, "testmode cmd to driver\n");
1028 result
= iwl_testmode_driver(hw
, tb
);
1031 case IWL_TM_CMD_APP2DEV_BEGIN_TRACE
:
1032 case IWL_TM_CMD_APP2DEV_END_TRACE
:
1033 case IWL_TM_CMD_APP2DEV_READ_TRACE
:
1034 IWL_DEBUG_INFO(priv
, "testmode uCode trace cmd to driver\n");
1035 result
= iwl_testmode_trace(hw
, tb
);
1038 case IWL_TM_CMD_APP2DEV_OWNERSHIP
:
1039 IWL_DEBUG_INFO(priv
, "testmode change uCode ownership\n");
1040 result
= iwl_testmode_ownership(hw
, tb
);
1043 case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ
:
1044 case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE
:
1045 IWL_DEBUG_INFO(priv
, "testmode indirect memory cmd "
1047 result
= iwl_testmode_indirect_mem(hw
, tb
);
1050 case IWL_TM_CMD_APP2DEV_NOTIFICATIONS
:
1051 IWL_DEBUG_INFO(priv
, "testmode notifications cmd "
1053 result
= iwl_testmode_notifications(hw
, tb
);
1057 IWL_ERR(priv
, "Unknown testmode command\n");
1062 mutex_unlock(&priv
->mutex
);
1066 int iwlagn_mac_testmode_dump(struct ieee80211_hw
*hw
, struct sk_buff
*skb
,
1067 struct netlink_callback
*cb
,
1068 void *data
, int len
)
1070 struct nlattr
*tb
[IWL_TM_ATTR_MAX
];
1071 struct iwl_priv
*priv
= IWL_MAC80211_GET_DVM(hw
);
1076 /* offset by 1 since commands start at 0 */
1077 cmd
= cb
->args
[3] - 1;
1079 result
= nla_parse(tb
, IWL_TM_ATTR_MAX
- 1, data
, len
,
1080 iwl_testmode_gnl_msg_policy
);
1083 "Error parsing the gnl message : %d\n", result
);
1087 /* IWL_TM_ATTR_COMMAND is absolutely mandatory */
1088 if (!tb
[IWL_TM_ATTR_COMMAND
]) {
1089 IWL_ERR(priv
, "Missing testmode command type\n");
1092 cmd
= nla_get_u32(tb
[IWL_TM_ATTR_COMMAND
]);
1093 cb
->args
[3] = cmd
+ 1;
1096 /* in case multiple accesses to the device happens */
1097 mutex_lock(&priv
->mutex
);
1099 case IWL_TM_CMD_APP2DEV_READ_TRACE
:
1100 IWL_DEBUG_INFO(priv
, "uCode trace cmd to driver\n");
1101 result
= iwl_testmode_trace_dump(hw
, skb
, cb
);
1103 case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_DUMP
:
1104 IWL_DEBUG_INFO(priv
, "testmode sram dump cmd to driver\n");
1105 result
= iwl_testmode_buffer_dump(hw
, skb
, cb
);
1112 mutex_unlock(&priv
->mutex
);