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,
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56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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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>
76 #include "iwl-debug.h"
79 #include "iwl-testmode.h"
80 #include "iwl-trans.h"
83 /* The TLVs used in the gnl message policy between the kernel module and
84 * user space application. iwl_testmode_gnl_msg_policy is to be carried
85 * through the NL80211_CMD_TESTMODE channel regulated by nl80211.
89 struct nla_policy iwl_testmode_gnl_msg_policy[IWL_TM_ATTR_MAX] = {
90 [IWL_TM_ATTR_COMMAND] = { .type = NLA_U32, },
92 [IWL_TM_ATTR_UCODE_CMD_ID] = { .type = NLA_U8, },
93 [IWL_TM_ATTR_UCODE_CMD_DATA] = { .type = NLA_UNSPEC, },
95 [IWL_TM_ATTR_REG_OFFSET] = { .type = NLA_U32, },
96 [IWL_TM_ATTR_REG_VALUE8] = { .type = NLA_U8, },
97 [IWL_TM_ATTR_REG_VALUE32] = { .type = NLA_U32, },
99 [IWL_TM_ATTR_SYNC_RSP] = { .type = NLA_UNSPEC, },
100 [IWL_TM_ATTR_UCODE_RX_PKT] = { .type = NLA_UNSPEC, },
102 [IWL_TM_ATTR_EEPROM] = { .type = NLA_UNSPEC, },
104 [IWL_TM_ATTR_TRACE_ADDR] = { .type = NLA_UNSPEC, },
105 [IWL_TM_ATTR_TRACE_DUMP] = { .type = NLA_UNSPEC, },
106 [IWL_TM_ATTR_TRACE_SIZE] = { .type = NLA_U32, },
108 [IWL_TM_ATTR_FIXRATE] = { .type = NLA_U32, },
110 [IWL_TM_ATTR_UCODE_OWNER] = { .type = NLA_U8, },
112 [IWL_TM_ATTR_SRAM_ADDR] = { .type = NLA_U32, },
113 [IWL_TM_ATTR_SRAM_SIZE] = { .type = NLA_U32, },
114 [IWL_TM_ATTR_SRAM_DUMP] = { .type = NLA_UNSPEC, },
116 [IWL_TM_ATTR_FW_VERSION] = { .type = NLA_U32, },
117 [IWL_TM_ATTR_DEVICE_ID] = { .type = NLA_U32, },
118 [IWL_TM_ATTR_FW_TYPE] = { .type = NLA_U32, },
119 [IWL_TM_ATTR_FW_INST_SIZE] = { .type = NLA_U32, },
120 [IWL_TM_ATTR_FW_DATA_SIZE] = { .type = NLA_U32, },
124 * See the struct iwl_rx_packet in iwl-commands.h for the format of the
125 * received events from the device
127 static inline int get_event_length(struct iwl_rx_mem_buffer *rxb)
129 struct iwl_rx_packet *pkt = rxb_addr(rxb);
131 return le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
138 * This function multicasts the spontaneous messages from the device to the
139 * user space. It is invoked whenever there is a received messages
140 * from the device. This function is called within the ISR of the rx handlers
143 * The parsing of the message content is left to the user space application,
144 * The message content is treated as unattacked raw data and is encapsulated
145 * with IWL_TM_ATTR_UCODE_RX_PKT multicasting to the user space.
147 * @priv: the instance of iwlwifi device
148 * @rxb: pointer to rx data content received by the ISR
150 * See the message policies and TLVs in iwl_testmode_gnl_msg_policy[].
151 * For the messages multicasting to the user application, the mandatory
153 * IWL_TM_ATTR_COMMAND must be IWL_TM_CMD_DEV2APP_UCODE_RX_PKT
154 * IWL_TM_ATTR_UCODE_RX_PKT for carrying the message content
157 static void iwl_testmode_ucode_rx_pkt(struct iwl_priv *priv,
158 struct iwl_rx_mem_buffer *rxb)
160 struct ieee80211_hw *hw = priv->hw;
165 data = (void *)rxb_addr(rxb);
166 length = get_event_length(rxb);
168 if (!data || length == 0)
171 skb = cfg80211_testmode_alloc_event_skb(hw->wiphy, 20 + length,
175 "Run out of memory for messages to user space ?\n");
178 NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, IWL_TM_CMD_DEV2APP_UCODE_RX_PKT);
179 NLA_PUT(skb, IWL_TM_ATTR_UCODE_RX_PKT, length, data);
180 cfg80211_testmode_event(skb, GFP_ATOMIC);
185 IWL_DEBUG_INFO(priv, "Ouch, overran buffer, check allocation!\n");
188 void iwl_testmode_init(struct iwl_priv *priv)
190 priv->pre_rx_handler = iwl_testmode_ucode_rx_pkt;
191 priv->testmode_trace.trace_enabled = false;
192 priv->testmode_sram.sram_readed = false;
195 static void iwl_sram_cleanup(struct iwl_priv *priv)
197 if (priv->testmode_sram.sram_readed) {
198 kfree(priv->testmode_sram.buff_addr);
199 priv->testmode_sram.buff_addr = NULL;
200 priv->testmode_sram.buff_size = 0;
201 priv->testmode_sram.num_chunks = 0;
202 priv->testmode_sram.sram_readed = false;
206 static void iwl_trace_cleanup(struct iwl_priv *priv)
208 if (priv->testmode_trace.trace_enabled) {
209 if (priv->testmode_trace.cpu_addr &&
210 priv->testmode_trace.dma_addr)
211 dma_free_coherent(trans(priv)->dev,
212 priv->testmode_trace.total_size,
213 priv->testmode_trace.cpu_addr,
214 priv->testmode_trace.dma_addr);
215 priv->testmode_trace.trace_enabled = false;
216 priv->testmode_trace.cpu_addr = NULL;
217 priv->testmode_trace.trace_addr = NULL;
218 priv->testmode_trace.dma_addr = 0;
219 priv->testmode_trace.buff_size = 0;
220 priv->testmode_trace.total_size = 0;
225 void iwl_testmode_cleanup(struct iwl_priv *priv)
227 iwl_trace_cleanup(priv);
228 iwl_sram_cleanup(priv);
232 * This function handles the user application commands to the ucode.
234 * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_CMD_ID and
235 * IWL_TM_ATTR_UCODE_CMD_DATA and calls to the handler to send the
236 * host command to the ucode.
238 * If any mandatory field is missing, -ENOMSG is replied to the user space
239 * application; otherwise, the actual execution result of the host command to
242 * @hw: ieee80211_hw object that represents the device
243 * @tb: gnl message fields from the user space
245 static int iwl_testmode_ucode(struct ieee80211_hw *hw, struct nlattr **tb)
247 struct iwl_priv *priv = hw->priv;
248 struct iwl_host_cmd cmd;
250 memset(&cmd, 0, sizeof(struct iwl_host_cmd));
252 if (!tb[IWL_TM_ATTR_UCODE_CMD_ID] ||
253 !tb[IWL_TM_ATTR_UCODE_CMD_DATA]) {
255 "Error finding ucode command mandatory fields\n");
259 cmd.flags = CMD_ON_DEMAND;
260 cmd.id = nla_get_u8(tb[IWL_TM_ATTR_UCODE_CMD_ID]);
261 cmd.data[0] = nla_data(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
262 cmd.len[0] = nla_len(tb[IWL_TM_ATTR_UCODE_CMD_DATA]);
263 cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
264 IWL_INFO(priv, "testmode ucode command ID 0x%x, flags 0x%x,"
265 " len %d\n", cmd.id, cmd.flags, cmd.len[0]);
266 /* ok, let's submit the command to ucode */
267 return iwl_trans_send_cmd(trans(priv), &cmd);
272 * This function handles the user application commands for register access.
274 * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
275 * handlers respectively.
277 * If it's an unknown commdn ID, -ENOSYS is returned; or -ENOMSG if the
278 * mandatory fields(IWL_TM_ATTR_REG_OFFSET,IWL_TM_ATTR_REG_VALUE32,
279 * IWL_TM_ATTR_REG_VALUE8) are missing; Otherwise 0 is replied indicating
280 * the success of the command execution.
282 * If IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_READ32, the register read
283 * value is returned with IWL_TM_ATTR_REG_VALUE32.
285 * @hw: ieee80211_hw object that represents the device
286 * @tb: gnl message fields from the user space
288 static int iwl_testmode_reg(struct ieee80211_hw *hw, struct nlattr **tb)
290 struct iwl_priv *priv = hw->priv;
296 if (!tb[IWL_TM_ATTR_REG_OFFSET]) {
297 IWL_DEBUG_INFO(priv, "Error finding register offset\n");
300 ofs = nla_get_u32(tb[IWL_TM_ATTR_REG_OFFSET]);
301 IWL_INFO(priv, "testmode register access command offset 0x%x\n", ofs);
303 switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
304 case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32:
305 val32 = iwl_read_direct32(trans(priv), ofs);
306 IWL_INFO(priv, "32bit value to read 0x%x\n", val32);
308 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20);
310 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
313 NLA_PUT_U32(skb, IWL_TM_ATTR_REG_VALUE32, val32);
314 status = cfg80211_testmode_reply(skb);
317 "Error sending msg : %d\n", status);
319 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32:
320 if (!tb[IWL_TM_ATTR_REG_VALUE32]) {
322 "Error finding value to write\n");
325 val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]);
326 IWL_INFO(priv, "32bit value to write 0x%x\n", val32);
327 iwl_write_direct32(trans(priv), ofs, val32);
330 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8:
331 if (!tb[IWL_TM_ATTR_REG_VALUE8]) {
332 IWL_DEBUG_INFO(priv, "Error finding value to write\n");
335 val8 = nla_get_u8(tb[IWL_TM_ATTR_REG_VALUE8]);
336 IWL_INFO(priv, "8bit value to write 0x%x\n", val8);
337 iwl_write8(trans(priv), ofs, val8);
340 case IWL_TM_CMD_APP2DEV_INDIRECT_REG_READ32:
341 val32 = iwl_read_prph(trans(priv), ofs);
342 IWL_INFO(priv, "32bit value to read 0x%x\n", val32);
344 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20);
346 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
349 NLA_PUT_U32(skb, IWL_TM_ATTR_REG_VALUE32, val32);
350 status = cfg80211_testmode_reply(skb);
353 "Error sending msg : %d\n", status);
355 case IWL_TM_CMD_APP2DEV_INDIRECT_REG_WRITE32:
356 if (!tb[IWL_TM_ATTR_REG_VALUE32]) {
358 "Error finding value to write\n");
361 val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]);
362 IWL_INFO(priv, "32bit value to write 0x%x\n", val32);
363 iwl_write_prph(trans(priv), ofs, val32);
367 IWL_DEBUG_INFO(priv, "Unknown testmode register command ID\n");
379 static int iwl_testmode_cfg_init_calib(struct iwl_priv *priv)
381 struct iwl_notification_wait calib_wait;
384 iwl_init_notification_wait(priv->shrd, &calib_wait,
385 CALIBRATION_COMPLETE_NOTIFICATION,
387 ret = iwl_init_alive_start(trans(priv));
390 "Error configuring init calibration: %d\n", ret);
391 goto cfg_init_calib_error;
394 ret = iwl_wait_notification(priv->shrd, &calib_wait, 2 * HZ);
396 IWL_DEBUG_INFO(priv, "Error detecting"
397 " CALIBRATION_COMPLETE_NOTIFICATION: %d\n", ret);
400 cfg_init_calib_error:
401 iwl_remove_notification(priv->shrd, &calib_wait);
406 * This function handles the user application commands for driver.
408 * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
409 * handlers respectively.
411 * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned
412 * value of the actual command execution is replied to the user application.
414 * If there's any message responding to the user space, IWL_TM_ATTR_SYNC_RSP
415 * is used for carry the message while IWL_TM_ATTR_COMMAND must set to
416 * IWL_TM_CMD_DEV2APP_SYNC_RSP.
418 * @hw: ieee80211_hw object that represents the device
419 * @tb: gnl message fields from the user space
421 static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb)
423 struct iwl_priv *priv = hw->priv;
424 struct iwl_trans *trans = trans(priv);
426 unsigned char *rsp_data_ptr = NULL;
427 int status = 0, rsp_data_len = 0;
428 u32 devid, inst_size = 0, data_size = 0;
430 switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
431 case IWL_TM_CMD_APP2DEV_GET_DEVICENAME:
432 rsp_data_ptr = (unsigned char *)cfg(priv)->name;
433 rsp_data_len = strlen(cfg(priv)->name);
434 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
438 "Error allocating memory\n");
441 NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND,
442 IWL_TM_CMD_DEV2APP_SYNC_RSP);
443 NLA_PUT(skb, IWL_TM_ATTR_SYNC_RSP,
444 rsp_data_len, rsp_data_ptr);
445 status = cfg80211_testmode_reply(skb);
447 IWL_DEBUG_INFO(priv, "Error sending msg : %d\n",
451 case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW:
452 status = iwl_load_ucode_wait_alive(trans, IWL_UCODE_INIT);
455 "Error loading init ucode: %d\n", status);
458 case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB:
459 iwl_testmode_cfg_init_calib(priv);
460 iwl_trans_stop_device(trans);
463 case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW:
464 status = iwl_load_ucode_wait_alive(trans, IWL_UCODE_REGULAR);
467 "Error loading runtime ucode: %d\n", status);
470 status = iwl_alive_start(priv);
473 "Error starting the device: %d\n", status);
476 case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW:
477 iwl_scan_cancel_timeout(priv, 200);
478 iwl_trans_stop_device(trans);
479 status = iwl_load_ucode_wait_alive(trans, IWL_UCODE_WOWLAN);
482 "Error loading WOWLAN ucode: %d\n", status);
485 status = iwl_alive_start(priv);
488 "Error starting the device: %d\n", status);
491 case IWL_TM_CMD_APP2DEV_GET_EEPROM:
492 if (priv->shrd->eeprom) {
493 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
494 cfg(priv)->base_params->eeprom_size + 20);
497 "Error allocating memory\n");
500 NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND,
501 IWL_TM_CMD_DEV2APP_EEPROM_RSP);
502 NLA_PUT(skb, IWL_TM_ATTR_EEPROM,
503 cfg(priv)->base_params->eeprom_size,
505 status = cfg80211_testmode_reply(skb);
508 "Error sending msg : %d\n",
514 case IWL_TM_CMD_APP2DEV_FIXRATE_REQ:
515 if (!tb[IWL_TM_ATTR_FIXRATE]) {
517 "Error finding fixrate setting\n");
520 priv->tm_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]);
523 case IWL_TM_CMD_APP2DEV_GET_FW_VERSION:
524 IWL_INFO(priv, "uCode version raw: 0x%x\n", priv->ucode_ver);
526 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20);
528 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
531 NLA_PUT_U32(skb, IWL_TM_ATTR_FW_VERSION, priv->ucode_ver);
532 status = cfg80211_testmode_reply(skb);
535 "Error sending msg : %d\n", status);
538 case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID:
539 devid = trans(priv)->hw_id;
540 IWL_INFO(priv, "hw version: 0x%x\n", devid);
542 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20);
544 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
547 NLA_PUT_U32(skb, IWL_TM_ATTR_DEVICE_ID, devid);
548 status = cfg80211_testmode_reply(skb);
551 "Error sending msg : %d\n", status);
554 case IWL_TM_CMD_APP2DEV_GET_FW_INFO:
555 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20 + 8);
557 IWL_DEBUG_INFO(priv, "Error allocating memory\n");
560 switch (priv->shrd->ucode_type) {
561 case IWL_UCODE_REGULAR:
562 inst_size = trans(priv)->ucode_rt.code.len;
563 data_size = trans(priv)->ucode_rt.data.len;
566 inst_size = trans(priv)->ucode_init.code.len;
567 data_size = trans(priv)->ucode_init.data.len;
569 case IWL_UCODE_WOWLAN:
570 inst_size = trans(priv)->ucode_wowlan.code.len;
571 data_size = trans(priv)->ucode_wowlan.data.len;
574 IWL_DEBUG_INFO(priv, "The uCode has not been loaded\n");
577 IWL_DEBUG_INFO(priv, "Unsupported uCode type\n");
580 NLA_PUT_U32(skb, IWL_TM_ATTR_FW_TYPE, priv->shrd->ucode_type);
581 NLA_PUT_U32(skb, IWL_TM_ATTR_FW_INST_SIZE, inst_size);
582 NLA_PUT_U32(skb, IWL_TM_ATTR_FW_DATA_SIZE, data_size);
583 status = cfg80211_testmode_reply(skb);
586 "Error sending msg : %d\n", status);
590 IWL_DEBUG_INFO(priv, "Unknown testmode driver command ID\n");
602 * This function handles the user application commands for uCode trace
604 * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the
605 * handlers respectively.
607 * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned
608 * value of the actual command execution is replied to the user application.
610 * @hw: ieee80211_hw object that represents the device
611 * @tb: gnl message fields from the user space
613 static int iwl_testmode_trace(struct ieee80211_hw *hw, struct nlattr **tb)
615 struct iwl_priv *priv = hw->priv;
618 struct device *dev = trans(priv)->dev;
620 switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
621 case IWL_TM_CMD_APP2DEV_BEGIN_TRACE:
622 if (priv->testmode_trace.trace_enabled)
625 if (!tb[IWL_TM_ATTR_TRACE_SIZE])
626 priv->testmode_trace.buff_size = TRACE_BUFF_SIZE_DEF;
628 priv->testmode_trace.buff_size =
629 nla_get_u32(tb[IWL_TM_ATTR_TRACE_SIZE]);
630 if (!priv->testmode_trace.buff_size)
632 if (priv->testmode_trace.buff_size < TRACE_BUFF_SIZE_MIN ||
633 priv->testmode_trace.buff_size > TRACE_BUFF_SIZE_MAX)
636 priv->testmode_trace.total_size =
637 priv->testmode_trace.buff_size + TRACE_BUFF_PADD;
638 priv->testmode_trace.cpu_addr =
639 dma_alloc_coherent(dev,
640 priv->testmode_trace.total_size,
641 &priv->testmode_trace.dma_addr,
643 if (!priv->testmode_trace.cpu_addr)
645 priv->testmode_trace.trace_enabled = true;
646 priv->testmode_trace.trace_addr = (u8 *)PTR_ALIGN(
647 priv->testmode_trace.cpu_addr, 0x100);
648 memset(priv->testmode_trace.trace_addr, 0x03B,
649 priv->testmode_trace.buff_size);
650 skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
651 sizeof(priv->testmode_trace.dma_addr) + 20);
654 "Error allocating memory\n");
655 iwl_trace_cleanup(priv);
658 NLA_PUT(skb, IWL_TM_ATTR_TRACE_ADDR,
659 sizeof(priv->testmode_trace.dma_addr),
660 (u64 *)&priv->testmode_trace.dma_addr);
661 status = cfg80211_testmode_reply(skb);
664 "Error sending msg : %d\n",
667 priv->testmode_trace.num_chunks =
668 DIV_ROUND_UP(priv->testmode_trace.buff_size,
672 case IWL_TM_CMD_APP2DEV_END_TRACE:
673 iwl_trace_cleanup(priv);
676 IWL_DEBUG_INFO(priv, "Unknown testmode mem command ID\n");
683 if (nla_get_u32(tb[IWL_TM_ATTR_COMMAND]) ==
684 IWL_TM_CMD_APP2DEV_BEGIN_TRACE)
685 iwl_trace_cleanup(priv);
689 static int iwl_testmode_trace_dump(struct ieee80211_hw *hw, struct nlattr **tb,
691 struct netlink_callback *cb)
693 struct iwl_priv *priv = hw->priv;
696 if (priv->testmode_trace.trace_enabled &&
697 priv->testmode_trace.trace_addr) {
699 if (idx >= priv->testmode_trace.num_chunks)
701 length = DUMP_CHUNK_SIZE;
702 if (((idx + 1) == priv->testmode_trace.num_chunks) &&
703 (priv->testmode_trace.buff_size % DUMP_CHUNK_SIZE))
704 length = priv->testmode_trace.buff_size %
707 NLA_PUT(skb, IWL_TM_ATTR_TRACE_DUMP, length,
708 priv->testmode_trace.trace_addr +
709 (DUMP_CHUNK_SIZE * idx));
721 * This function handles the user application switch ucode ownership.
723 * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_OWNER and
724 * decide who the current owner of the uCode
726 * If the current owner is OWNERSHIP_TM, then the only host command
727 * can deliver to uCode is from testmode, all the other host commands
730 * default driver is the owner of uCode in normal operational mode
732 * @hw: ieee80211_hw object that represents the device
733 * @tb: gnl message fields from the user space
735 static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb)
737 struct iwl_priv *priv = hw->priv;
740 if (!tb[IWL_TM_ATTR_UCODE_OWNER]) {
741 IWL_DEBUG_INFO(priv, "Error finding ucode owner\n");
745 owner = nla_get_u8(tb[IWL_TM_ATTR_UCODE_OWNER]);
746 if ((owner == IWL_OWNERSHIP_DRIVER) || (owner == IWL_OWNERSHIP_TM))
747 priv->shrd->ucode_owner = owner;
749 IWL_DEBUG_INFO(priv, "Invalid owner\n");
756 * This function handles the user application commands for SRAM data dump
758 * It retrieves the mandatory fields IWL_TM_ATTR_SRAM_ADDR and
759 * IWL_TM_ATTR_SRAM_SIZE to decide the memory area for SRAM data reading
761 * Several error will be retured, -EBUSY if the SRAM data retrieved by
762 * previous command has not been delivered to userspace, or -ENOMSG if
763 * the mandatory fields (IWL_TM_ATTR_SRAM_ADDR,IWL_TM_ATTR_SRAM_SIZE)
764 * are missing, or -ENOMEM if the buffer allocation fails.
766 * Otherwise 0 is replied indicating the success of the SRAM reading.
768 * @hw: ieee80211_hw object that represents the device
769 * @tb: gnl message fields from the user space
771 static int iwl_testmode_sram(struct ieee80211_hw *hw, struct nlattr **tb)
773 struct iwl_priv *priv = hw->priv;
774 u32 ofs, size, maxsize;
776 if (priv->testmode_sram.sram_readed)
779 if (!tb[IWL_TM_ATTR_SRAM_ADDR]) {
780 IWL_DEBUG_INFO(priv, "Error finding SRAM offset address\n");
783 ofs = nla_get_u32(tb[IWL_TM_ATTR_SRAM_ADDR]);
784 if (!tb[IWL_TM_ATTR_SRAM_SIZE]) {
785 IWL_DEBUG_INFO(priv, "Error finding size for SRAM reading\n");
788 size = nla_get_u32(tb[IWL_TM_ATTR_SRAM_SIZE]);
789 switch (priv->shrd->ucode_type) {
790 case IWL_UCODE_REGULAR:
791 maxsize = trans(priv)->ucode_rt.data.len;
794 maxsize = trans(priv)->ucode_init.data.len;
796 case IWL_UCODE_WOWLAN:
797 maxsize = trans(priv)->ucode_wowlan.data.len;
800 IWL_ERR(priv, "Error, uCode does not been loaded\n");
803 IWL_ERR(priv, "Error, unsupported uCode type\n");
806 if ((ofs + size) > (maxsize + SRAM_DATA_SEG_OFFSET)) {
807 IWL_ERR(priv, "Invalid offset/size: out of range\n");
810 priv->testmode_sram.buff_size = (size / 4) * 4;
811 priv->testmode_sram.buff_addr =
812 kmalloc(priv->testmode_sram.buff_size, GFP_KERNEL);
813 if (priv->testmode_sram.buff_addr == NULL) {
814 IWL_ERR(priv, "Error allocating memory\n");
817 _iwl_read_targ_mem_words(trans(priv), ofs,
818 priv->testmode_sram.buff_addr,
819 priv->testmode_sram.buff_size / 4);
820 priv->testmode_sram.num_chunks =
821 DIV_ROUND_UP(priv->testmode_sram.buff_size, DUMP_CHUNK_SIZE);
822 priv->testmode_sram.sram_readed = true;
826 static int iwl_testmode_sram_dump(struct ieee80211_hw *hw, struct nlattr **tb,
828 struct netlink_callback *cb)
830 struct iwl_priv *priv = hw->priv;
833 if (priv->testmode_sram.sram_readed) {
835 if (idx >= priv->testmode_sram.num_chunks) {
836 iwl_sram_cleanup(priv);
839 length = DUMP_CHUNK_SIZE;
840 if (((idx + 1) == priv->testmode_sram.num_chunks) &&
841 (priv->testmode_sram.buff_size % DUMP_CHUNK_SIZE))
842 length = priv->testmode_sram.buff_size %
845 NLA_PUT(skb, IWL_TM_ATTR_SRAM_DUMP, length,
846 priv->testmode_sram.buff_addr +
847 (DUMP_CHUNK_SIZE * idx));
859 /* The testmode gnl message handler that takes the gnl message from the
860 * user space and parses it per the policy iwl_testmode_gnl_msg_policy, then
861 * invoke the corresponding handlers.
863 * This function is invoked when there is user space application sending
864 * gnl message through the testmode tunnel NL80211_CMD_TESTMODE regulated
867 * It retrieves the mandatory field, IWL_TM_ATTR_COMMAND, before
868 * dispatching it to the corresponding handler.
870 * If IWL_TM_ATTR_COMMAND is missing, -ENOMSG is replied to user application;
871 * -ENOSYS is replied to the user application if the command is unknown;
872 * Otherwise, the command is dispatched to the respective handler.
874 * @hw: ieee80211_hw object that represents the device
875 * @data: pointer to user space message
876 * @len: length in byte of @data
878 int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len)
880 struct nlattr *tb[IWL_TM_ATTR_MAX];
881 struct iwl_priv *priv = hw->priv;
884 result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len,
885 iwl_testmode_gnl_msg_policy);
888 "Error parsing the gnl message : %d\n", result);
892 /* IWL_TM_ATTR_COMMAND is absolutely mandatory */
893 if (!tb[IWL_TM_ATTR_COMMAND]) {
894 IWL_DEBUG_INFO(priv, "Error finding testmode command type\n");
897 /* in case multiple accesses to the device happens */
898 mutex_lock(&priv->shrd->mutex);
900 switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) {
901 case IWL_TM_CMD_APP2DEV_UCODE:
902 IWL_DEBUG_INFO(priv, "testmode cmd to uCode\n");
903 result = iwl_testmode_ucode(hw, tb);
905 case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32:
906 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32:
907 case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8:
908 case IWL_TM_CMD_APP2DEV_INDIRECT_REG_READ32:
909 case IWL_TM_CMD_APP2DEV_INDIRECT_REG_WRITE32:
910 IWL_DEBUG_INFO(priv, "testmode cmd to register\n");
911 result = iwl_testmode_reg(hw, tb);
913 case IWL_TM_CMD_APP2DEV_GET_DEVICENAME:
914 case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW:
915 case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB:
916 case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW:
917 case IWL_TM_CMD_APP2DEV_GET_EEPROM:
918 case IWL_TM_CMD_APP2DEV_FIXRATE_REQ:
919 case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW:
920 case IWL_TM_CMD_APP2DEV_GET_FW_VERSION:
921 case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID:
922 case IWL_TM_CMD_APP2DEV_GET_FW_INFO:
923 IWL_DEBUG_INFO(priv, "testmode cmd to driver\n");
924 result = iwl_testmode_driver(hw, tb);
927 case IWL_TM_CMD_APP2DEV_BEGIN_TRACE:
928 case IWL_TM_CMD_APP2DEV_END_TRACE:
929 case IWL_TM_CMD_APP2DEV_READ_TRACE:
930 IWL_DEBUG_INFO(priv, "testmode uCode trace cmd to driver\n");
931 result = iwl_testmode_trace(hw, tb);
934 case IWL_TM_CMD_APP2DEV_OWNERSHIP:
935 IWL_DEBUG_INFO(priv, "testmode change uCode ownership\n");
936 result = iwl_testmode_ownership(hw, tb);
939 case IWL_TM_CMD_APP2DEV_READ_SRAM:
940 IWL_DEBUG_INFO(priv, "testmode sram read cmd to driver\n");
941 result = iwl_testmode_sram(hw, tb);
945 IWL_DEBUG_INFO(priv, "Unknown testmode command\n");
950 mutex_unlock(&priv->shrd->mutex);
954 int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb,
955 struct netlink_callback *cb,
958 struct nlattr *tb[IWL_TM_ATTR_MAX];
959 struct iwl_priv *priv = hw->priv;
964 /* offset by 1 since commands start at 0 */
965 cmd = cb->args[3] - 1;
967 result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len,
968 iwl_testmode_gnl_msg_policy);
971 "Error parsing the gnl message : %d\n", result);
975 /* IWL_TM_ATTR_COMMAND is absolutely mandatory */
976 if (!tb[IWL_TM_ATTR_COMMAND]) {
978 "Error finding testmode command type\n");
981 cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]);
982 cb->args[3] = cmd + 1;
985 /* in case multiple accesses to the device happens */
986 mutex_lock(&priv->shrd->mutex);
988 case IWL_TM_CMD_APP2DEV_READ_TRACE:
989 IWL_DEBUG_INFO(priv, "uCode trace cmd to driver\n");
990 result = iwl_testmode_trace_dump(hw, tb, skb, cb);
992 case IWL_TM_CMD_APP2DEV_DUMP_SRAM:
993 IWL_DEBUG_INFO(priv, "testmode sram dump cmd to driver\n");
994 result = iwl_testmode_sram_dump(hw, tb, skb, cb);
1001 mutex_unlock(&priv->shrd->mutex);