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4613e72d CK |
1 | /****************************************************************************** |
2 | * | |
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. | |
5 | * | |
6 | * GPL LICENSE SUMMARY | |
7 | * | |
4e318262 | 8 | * Copyright(c) 2010 - 2012 Intel Corporation. All rights reserved. |
4613e72d CK |
9 | * |
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. | |
13 | * | |
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. | |
18 | * | |
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, | |
22 | * USA | |
23 | * | |
24 | * The full GNU General Public License is included in this distribution | |
25 | * in the file called LICENSE.GPL. | |
26 | * | |
27 | * Contact Information: | |
28 | * Intel Linux Wireless <ilw@linux.intel.com> | |
29 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
30 | * | |
31 | * BSD LICENSE | |
32 | * | |
4e318262 | 33 | * Copyright(c) 2010 - 2012 Intel Corporation. All rights reserved. |
4613e72d CK |
34 | * All rights reserved. |
35 | * | |
36 | * Redistribution and use in source and binary forms, with or without | |
37 | * modification, are permitted provided that the following conditions | |
38 | * are met: | |
39 | * | |
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 | |
45 | * distribution. | |
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. | |
49 | * | |
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. | |
61 | * | |
62 | *****************************************************************************/ | |
63 | #include <linux/init.h> | |
64 | #include <linux/kernel.h> | |
65 | #include <linux/module.h> | |
522376d2 | 66 | #include <linux/dma-mapping.h> |
4613e72d CK |
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> | |
72 | ||
4613e72d CK |
73 | #include "iwl-dev.h" |
74 | #include "iwl-core.h" | |
75 | #include "iwl-debug.h" | |
4613e72d CK |
76 | #include "iwl-io.h" |
77 | #include "iwl-agn.h" | |
78 | #include "iwl-testmode.h" | |
bdfbf092 | 79 | #include "iwl-trans.h" |
6fe7dd0d | 80 | #include "iwl-fh.h" |
eae63b85 | 81 | #include "iwl-prph.h" |
4613e72d | 82 | |
6c55f5ed AB |
83 | |
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. | |
87 | */ | |
88 | #define IWL_TM_ABS_PRPH_START (0xA00000) | |
89 | ||
4613e72d CK |
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. | |
93 | * See iwl-testmode.h | |
94 | */ | |
95 | static | |
96 | struct nla_policy iwl_testmode_gnl_msg_policy[IWL_TM_ATTR_MAX] = { | |
97 | [IWL_TM_ATTR_COMMAND] = { .type = NLA_U32, }, | |
98 | ||
99 | [IWL_TM_ATTR_UCODE_CMD_ID] = { .type = NLA_U8, }, | |
100 | [IWL_TM_ATTR_UCODE_CMD_DATA] = { .type = NLA_UNSPEC, }, | |
101 | ||
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, }, | |
105 | ||
106 | [IWL_TM_ATTR_SYNC_RSP] = { .type = NLA_UNSPEC, }, | |
107 | [IWL_TM_ATTR_UCODE_RX_PKT] = { .type = NLA_UNSPEC, }, | |
7a4e5281 | 108 | |
4babc358 WYG |
109 | [IWL_TM_ATTR_EEPROM] = { .type = NLA_UNSPEC, }, |
110 | ||
7a4e5281 | 111 | [IWL_TM_ATTR_TRACE_ADDR] = { .type = NLA_UNSPEC, }, |
eb64dca0 | 112 | [IWL_TM_ATTR_TRACE_DUMP] = { .type = NLA_UNSPEC, }, |
49b72100 | 113 | [IWL_TM_ATTR_TRACE_SIZE] = { .type = NLA_U32, }, |
7a4e5281 | 114 | |
6489854b | 115 | [IWL_TM_ATTR_FIXRATE] = { .type = NLA_U32, }, |
49b72100 | 116 | |
e98a1939 | 117 | [IWL_TM_ATTR_UCODE_OWNER] = { .type = NLA_U8, }, |
306713fd | 118 | |
6c55f5ed AB |
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, }, | |
e1a38fe1 HK |
122 | |
123 | [IWL_TM_ATTR_FW_VERSION] = { .type = NLA_U32, }, | |
0bec12b8 | 124 | [IWL_TM_ATTR_DEVICE_ID] = { .type = NLA_U32, }, |
aca9b5f3 KH |
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, }, | |
0aef8ddc AB |
128 | |
129 | [IWL_TM_ATTR_ENABLE_NOTIFICATION] = {.type = NLA_FLAG, }, | |
4613e72d CK |
130 | }; |
131 | ||
132 | /* | |
133 | * See the struct iwl_rx_packet in iwl-commands.h for the format of the | |
134 | * received events from the device | |
135 | */ | |
48a2d66f | 136 | static inline int get_event_length(struct iwl_rx_cmd_buffer *rxb) |
4613e72d CK |
137 | { |
138 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
139 | if (pkt) | |
140 | return le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; | |
141 | else | |
142 | return 0; | |
143 | } | |
144 | ||
145 | ||
146 | /* | |
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 | |
150 | * in iwlagn driver. | |
151 | * | |
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. | |
155 | * | |
156 | * @priv: the instance of iwlwifi device | |
157 | * @rxb: pointer to rx data content received by the ISR | |
158 | * | |
159 | * See the message policies and TLVs in iwl_testmode_gnl_msg_policy[]. | |
160 | * For the messages multicasting to the user application, the mandatory | |
161 | * TLV fields are : | |
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 | |
164 | */ | |
165 | ||
166 | static void iwl_testmode_ucode_rx_pkt(struct iwl_priv *priv, | |
48a2d66f | 167 | struct iwl_rx_cmd_buffer *rxb) |
4613e72d CK |
168 | { |
169 | struct ieee80211_hw *hw = priv->hw; | |
170 | struct sk_buff *skb; | |
171 | void *data; | |
172 | int length; | |
173 | ||
174 | data = (void *)rxb_addr(rxb); | |
175 | length = get_event_length(rxb); | |
176 | ||
177 | if (!data || length == 0) | |
178 | return; | |
179 | ||
180 | skb = cfg80211_testmode_alloc_event_skb(hw->wiphy, 20 + length, | |
181 | GFP_ATOMIC); | |
182 | if (skb == NULL) { | |
2f73d7c2 | 183 | IWL_ERR(priv, |
4613e72d CK |
184 | "Run out of memory for messages to user space ?\n"); |
185 | return; | |
186 | } | |
d33e152e DM |
187 | if (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 | goto nla_put_failure; | |
4613e72d CK |
191 | cfg80211_testmode_event(skb, GFP_ATOMIC); |
192 | return; | |
193 | ||
194 | nla_put_failure: | |
195 | kfree_skb(skb); | |
2f73d7c2 | 196 | IWL_ERR(priv, "Ouch, overran buffer, check allocation!\n"); |
4613e72d CK |
197 | } |
198 | ||
199 | void iwl_testmode_init(struct iwl_priv *priv) | |
200 | { | |
0aef8ddc | 201 | priv->pre_rx_handler = NULL; |
7a4e5281 | 202 | priv->testmode_trace.trace_enabled = false; |
6c55f5ed | 203 | priv->testmode_mem.read_in_progress = false; |
306713fd HK |
204 | } |
205 | ||
6c55f5ed | 206 | static void iwl_mem_cleanup(struct iwl_priv *priv) |
306713fd | 207 | { |
6c55f5ed AB |
208 | if (priv->testmode_mem.read_in_progress) { |
209 | kfree(priv->testmode_mem.buff_addr); | |
210 | priv->testmode_mem.buff_addr = NULL; | |
211 | priv->testmode_mem.buff_size = 0; | |
212 | priv->testmode_mem.num_chunks = 0; | |
213 | priv->testmode_mem.read_in_progress = false; | |
306713fd | 214 | } |
7a4e5281 WYG |
215 | } |
216 | ||
217 | static void iwl_trace_cleanup(struct iwl_priv *priv) | |
218 | { | |
7a4e5281 WYG |
219 | if (priv->testmode_trace.trace_enabled) { |
220 | if (priv->testmode_trace.cpu_addr && | |
221 | priv->testmode_trace.dma_addr) | |
1042db2a | 222 | dma_free_coherent(trans(priv)->dev, |
49b72100 | 223 | priv->testmode_trace.total_size, |
7a4e5281 WYG |
224 | priv->testmode_trace.cpu_addr, |
225 | priv->testmode_trace.dma_addr); | |
226 | priv->testmode_trace.trace_enabled = false; | |
227 | priv->testmode_trace.cpu_addr = NULL; | |
228 | priv->testmode_trace.trace_addr = NULL; | |
229 | priv->testmode_trace.dma_addr = 0; | |
49b72100 WYG |
230 | priv->testmode_trace.buff_size = 0; |
231 | priv->testmode_trace.total_size = 0; | |
7a4e5281 WYG |
232 | } |
233 | } | |
234 | ||
235 | ||
236 | void iwl_testmode_cleanup(struct iwl_priv *priv) | |
237 | { | |
238 | iwl_trace_cleanup(priv); | |
6c55f5ed | 239 | iwl_mem_cleanup(priv); |
4613e72d CK |
240 | } |
241 | ||
cdfef6c2 | 242 | |
4613e72d CK |
243 | /* |
244 | * This function handles the user application commands to the ucode. | |
245 | * | |
246 | * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_CMD_ID and | |
247 | * IWL_TM_ATTR_UCODE_CMD_DATA and calls to the handler to send the | |
248 | * host command to the ucode. | |
249 | * | |
250 | * If any mandatory field is missing, -ENOMSG is replied to the user space | |
cdfef6c2 AB |
251 | * application; otherwise, waits for the host command to be sent and checks |
252 | * the return code. In case or error, it is returned, otherwise a reply is | |
253 | * allocated and the reply RX packet | |
254 | * is returned. | |
4613e72d CK |
255 | * |
256 | * @hw: ieee80211_hw object that represents the device | |
257 | * @tb: gnl message fields from the user space | |
258 | */ | |
259 | static int iwl_testmode_ucode(struct ieee80211_hw *hw, struct nlattr **tb) | |
260 | { | |
d0f76d68 | 261 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
4613e72d | 262 | struct iwl_host_cmd cmd; |
cdfef6c2 AB |
263 | struct iwl_rx_packet *pkt; |
264 | struct sk_buff *skb; | |
265 | void *reply_buf; | |
266 | u32 reply_len; | |
267 | int ret; | |
268 | bool cmd_want_skb; | |
4613e72d CK |
269 | |
270 | memset(&cmd, 0, sizeof(struct iwl_host_cmd)); | |
271 | ||
272 | if (!tb[IWL_TM_ATTR_UCODE_CMD_ID] || | |
273 | !tb[IWL_TM_ATTR_UCODE_CMD_DATA]) { | |
2f73d7c2 | 274 | IWL_ERR(priv, "Missing ucode command mandatory fields\n"); |
4613e72d CK |
275 | return -ENOMSG; |
276 | } | |
277 | ||
cdfef6c2 AB |
278 | cmd.flags = CMD_ON_DEMAND | CMD_SYNC; |
279 | cmd_want_skb = nla_get_flag(tb[IWL_TM_ATTR_UCODE_CMD_SKB]); | |
280 | if (cmd_want_skb) | |
281 | cmd.flags |= CMD_WANT_SKB; | |
282 | ||
4613e72d | 283 | cmd.id = nla_get_u8(tb[IWL_TM_ATTR_UCODE_CMD_ID]); |
3fa50738 JB |
284 | cmd.data[0] = nla_data(tb[IWL_TM_ATTR_UCODE_CMD_DATA]); |
285 | cmd.len[0] = nla_len(tb[IWL_TM_ATTR_UCODE_CMD_DATA]); | |
4ce7cc2b | 286 | cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; |
cdfef6c2 | 287 | IWL_DEBUG_INFO(priv, "testmode ucode command ID 0x%x, flags 0x%x," |
3fa50738 | 288 | " len %d\n", cmd.id, cmd.flags, cmd.len[0]); |
cdfef6c2 | 289 | |
e10a0533 | 290 | ret = iwl_dvm_send_cmd(priv, &cmd); |
cdfef6c2 AB |
291 | if (ret) { |
292 | IWL_ERR(priv, "Failed to send hcmd\n"); | |
293 | return ret; | |
294 | } | |
295 | if (!cmd_want_skb) | |
296 | return ret; | |
297 | ||
298 | /* Handling return of SKB to the user */ | |
65b94a4a | 299 | pkt = cmd.resp_pkt; |
cdfef6c2 AB |
300 | if (!pkt) { |
301 | IWL_ERR(priv, "HCMD received a null response packet\n"); | |
302 | return ret; | |
303 | } | |
304 | ||
305 | reply_len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; | |
306 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, reply_len + 20); | |
307 | reply_buf = kmalloc(reply_len, GFP_KERNEL); | |
308 | if (!skb || !reply_buf) { | |
309 | kfree_skb(skb); | |
310 | kfree(reply_buf); | |
311 | return -ENOMEM; | |
312 | } | |
313 | ||
314 | /* The reply is in a page, that we cannot send to user space. */ | |
edabfa91 | 315 | memcpy(reply_buf, &(pkt->hdr), reply_len); |
65b94a4a | 316 | iwl_free_resp(&cmd); |
cdfef6c2 | 317 | |
d33e152e DM |
318 | if (nla_put_u32(skb, IWL_TM_ATTR_COMMAND, IWL_TM_CMD_DEV2APP_UCODE_RX_PKT) || |
319 | nla_put(skb, IWL_TM_ATTR_UCODE_RX_PKT, reply_len, reply_buf)) | |
320 | goto nla_put_failure; | |
cdfef6c2 AB |
321 | return cfg80211_testmode_reply(skb); |
322 | ||
323 | nla_put_failure: | |
324 | IWL_DEBUG_INFO(priv, "Failed creating NL attributes\n"); | |
325 | return -ENOMSG; | |
4613e72d CK |
326 | } |
327 | ||
328 | ||
329 | /* | |
330 | * This function handles the user application commands for register access. | |
331 | * | |
332 | * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the | |
333 | * handlers respectively. | |
334 | * | |
335 | * If it's an unknown commdn ID, -ENOSYS is returned; or -ENOMSG if the | |
336 | * mandatory fields(IWL_TM_ATTR_REG_OFFSET,IWL_TM_ATTR_REG_VALUE32, | |
337 | * IWL_TM_ATTR_REG_VALUE8) are missing; Otherwise 0 is replied indicating | |
338 | * the success of the command execution. | |
339 | * | |
340 | * If IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_READ32, the register read | |
341 | * value is returned with IWL_TM_ATTR_REG_VALUE32. | |
342 | * | |
343 | * @hw: ieee80211_hw object that represents the device | |
344 | * @tb: gnl message fields from the user space | |
345 | */ | |
346 | static int iwl_testmode_reg(struct ieee80211_hw *hw, struct nlattr **tb) | |
347 | { | |
d0f76d68 | 348 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
6fe7dd0d | 349 | u32 ofs, val32, cmd; |
4613e72d CK |
350 | u8 val8; |
351 | struct sk_buff *skb; | |
352 | int status = 0; | |
353 | ||
354 | if (!tb[IWL_TM_ATTR_REG_OFFSET]) { | |
2f73d7c2 | 355 | IWL_ERR(priv, "Missing register offset\n"); |
4613e72d CK |
356 | return -ENOMSG; |
357 | } | |
358 | ofs = nla_get_u32(tb[IWL_TM_ATTR_REG_OFFSET]); | |
359 | IWL_INFO(priv, "testmode register access command offset 0x%x\n", ofs); | |
360 | ||
6fe7dd0d AB |
361 | /* Allow access only to FH/CSR/HBUS in direct mode. |
362 | Since we don't have the upper bounds for the CSR and HBUS segments, | |
363 | we will use only the upper bound of FH for sanity check. */ | |
364 | cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]); | |
365 | if ((cmd == IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32 || | |
366 | cmd == IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32 || | |
367 | cmd == IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8) && | |
368 | (ofs >= FH_MEM_UPPER_BOUND)) { | |
2f73d7c2 | 369 | IWL_ERR(priv, "offset out of segment (0x0 - 0x%x)\n", |
6fe7dd0d AB |
370 | FH_MEM_UPPER_BOUND); |
371 | return -EINVAL; | |
372 | } | |
373 | ||
374 | switch (cmd) { | |
72bcacc2 | 375 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: |
1042db2a | 376 | val32 = iwl_read_direct32(trans(priv), ofs); |
4613e72d CK |
377 | IWL_INFO(priv, "32bit value to read 0x%x\n", val32); |
378 | ||
379 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20); | |
380 | if (!skb) { | |
2f73d7c2 | 381 | IWL_ERR(priv, "Memory allocation fail\n"); |
4613e72d CK |
382 | return -ENOMEM; |
383 | } | |
d33e152e DM |
384 | if (nla_put_u32(skb, IWL_TM_ATTR_REG_VALUE32, val32)) |
385 | goto nla_put_failure; | |
4613e72d CK |
386 | status = cfg80211_testmode_reply(skb); |
387 | if (status < 0) | |
2f73d7c2 | 388 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
4613e72d | 389 | break; |
72bcacc2 | 390 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: |
4613e72d | 391 | if (!tb[IWL_TM_ATTR_REG_VALUE32]) { |
2f73d7c2 | 392 | IWL_ERR(priv, "Missing value to write\n"); |
4613e72d CK |
393 | return -ENOMSG; |
394 | } else { | |
395 | val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]); | |
396 | IWL_INFO(priv, "32bit value to write 0x%x\n", val32); | |
1042db2a | 397 | iwl_write_direct32(trans(priv), ofs, val32); |
4613e72d CK |
398 | } |
399 | break; | |
72bcacc2 | 400 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: |
4613e72d | 401 | if (!tb[IWL_TM_ATTR_REG_VALUE8]) { |
2f73d7c2 | 402 | IWL_ERR(priv, "Missing value to write\n"); |
4613e72d CK |
403 | return -ENOMSG; |
404 | } else { | |
405 | val8 = nla_get_u8(tb[IWL_TM_ATTR_REG_VALUE8]); | |
406 | IWL_INFO(priv, "8bit value to write 0x%x\n", val8); | |
1042db2a | 407 | iwl_write8(trans(priv), ofs, val8); |
4613e72d CK |
408 | } |
409 | break; | |
410 | default: | |
2f73d7c2 | 411 | IWL_ERR(priv, "Unknown testmode register command ID\n"); |
4613e72d CK |
412 | return -ENOSYS; |
413 | } | |
414 | ||
415 | return status; | |
416 | ||
417 | nla_put_failure: | |
418 | kfree_skb(skb); | |
419 | return -EMSGSIZE; | |
420 | } | |
421 | ||
422 | ||
423 | static int iwl_testmode_cfg_init_calib(struct iwl_priv *priv) | |
424 | { | |
425 | struct iwl_notification_wait calib_wait; | |
db662d47 JB |
426 | static const u8 calib_complete[] = { |
427 | CALIBRATION_COMPLETE_NOTIFICATION | |
428 | }; | |
4613e72d CK |
429 | int ret; |
430 | ||
4bd14dd5 | 431 | iwl_init_notification_wait(&priv->notif_wait, &calib_wait, |
db662d47 | 432 | calib_complete, ARRAY_SIZE(calib_complete), |
4bd14dd5 | 433 | NULL, NULL); |
e1991885 | 434 | ret = iwl_init_alive_start(priv); |
4613e72d | 435 | if (ret) { |
2f73d7c2 | 436 | IWL_ERR(priv, "Fail init calibration: %d\n", ret); |
4613e72d CK |
437 | goto cfg_init_calib_error; |
438 | } | |
439 | ||
4bd14dd5 | 440 | ret = iwl_wait_notification(&priv->notif_wait, &calib_wait, 2 * HZ); |
4613e72d | 441 | if (ret) |
2f73d7c2 | 442 | IWL_ERR(priv, "Error detecting" |
4613e72d CK |
443 | " CALIBRATION_COMPLETE_NOTIFICATION: %d\n", ret); |
444 | return ret; | |
445 | ||
446 | cfg_init_calib_error: | |
4bd14dd5 | 447 | iwl_remove_notification(&priv->notif_wait, &calib_wait); |
4613e72d CK |
448 | return ret; |
449 | } | |
450 | ||
451 | /* | |
452 | * This function handles the user application commands for driver. | |
453 | * | |
454 | * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the | |
455 | * handlers respectively. | |
456 | * | |
457 | * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned | |
458 | * value of the actual command execution is replied to the user application. | |
459 | * | |
460 | * If there's any message responding to the user space, IWL_TM_ATTR_SYNC_RSP | |
461 | * is used for carry the message while IWL_TM_ATTR_COMMAND must set to | |
462 | * IWL_TM_CMD_DEV2APP_SYNC_RSP. | |
463 | * | |
464 | * @hw: ieee80211_hw object that represents the device | |
465 | * @tb: gnl message fields from the user space | |
466 | */ | |
467 | static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb) | |
468 | { | |
d0f76d68 | 469 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
69a679b0 | 470 | struct iwl_trans *trans = trans(priv); |
4613e72d CK |
471 | struct sk_buff *skb; |
472 | unsigned char *rsp_data_ptr = NULL; | |
473 | int status = 0, rsp_data_len = 0; | |
aca9b5f3 | 474 | u32 devid, inst_size = 0, data_size = 0; |
6dfa8d01 | 475 | const struct fw_img *img; |
4613e72d CK |
476 | |
477 | switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { | |
478 | case IWL_TM_CMD_APP2DEV_GET_DEVICENAME: | |
38622419 DF |
479 | rsp_data_ptr = (unsigned char *)cfg(priv)->name; |
480 | rsp_data_len = strlen(cfg(priv)->name); | |
4613e72d CK |
481 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, |
482 | rsp_data_len + 20); | |
483 | if (!skb) { | |
2f73d7c2 | 484 | IWL_ERR(priv, "Memory allocation fail\n"); |
4613e72d CK |
485 | return -ENOMEM; |
486 | } | |
d33e152e DM |
487 | if (nla_put_u32(skb, IWL_TM_ATTR_COMMAND, |
488 | IWL_TM_CMD_DEV2APP_SYNC_RSP) || | |
489 | nla_put(skb, IWL_TM_ATTR_SYNC_RSP, | |
490 | rsp_data_len, rsp_data_ptr)) | |
491 | goto nla_put_failure; | |
4613e72d CK |
492 | status = cfg80211_testmode_reply(skb); |
493 | if (status < 0) | |
2f73d7c2 | 494 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
4613e72d CK |
495 | break; |
496 | ||
497 | case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: | |
e1991885 | 498 | status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT); |
4613e72d | 499 | if (status) |
2f73d7c2 | 500 | IWL_ERR(priv, "Error loading init ucode: %d\n", status); |
4613e72d CK |
501 | break; |
502 | ||
503 | case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: | |
504 | iwl_testmode_cfg_init_calib(priv); | |
8f7ffbe2 | 505 | priv->ucode_loaded = false; |
69a679b0 | 506 | iwl_trans_stop_device(trans); |
4613e72d CK |
507 | break; |
508 | ||
509 | case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: | |
e1991885 | 510 | status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); |
4613e72d | 511 | if (status) { |
2f73d7c2 | 512 | IWL_ERR(priv, |
4613e72d CK |
513 | "Error loading runtime ucode: %d\n", status); |
514 | break; | |
515 | } | |
516 | status = iwl_alive_start(priv); | |
517 | if (status) | |
2f73d7c2 | 518 | IWL_ERR(priv, |
4613e72d CK |
519 | "Error starting the device: %d\n", status); |
520 | break; | |
521 | ||
d4af19fe HK |
522 | case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: |
523 | iwl_scan_cancel_timeout(priv, 200); | |
8f7ffbe2 | 524 | priv->ucode_loaded = false; |
69a679b0 | 525 | iwl_trans_stop_device(trans); |
e1991885 | 526 | status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN); |
d4af19fe | 527 | if (status) { |
2f73d7c2 | 528 | IWL_ERR(priv, |
d4af19fe HK |
529 | "Error loading WOWLAN ucode: %d\n", status); |
530 | break; | |
531 | } | |
532 | status = iwl_alive_start(priv); | |
533 | if (status) | |
2f73d7c2 | 534 | IWL_ERR(priv, |
d4af19fe HK |
535 | "Error starting the device: %d\n", status); |
536 | break; | |
537 | ||
4babc358 | 538 | case IWL_TM_CMD_APP2DEV_GET_EEPROM: |
ab36eab2 | 539 | if (priv->shrd->eeprom) { |
4babc358 | 540 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, |
38622419 | 541 | cfg(priv)->base_params->eeprom_size + 20); |
4babc358 | 542 | if (!skb) { |
2f73d7c2 | 543 | IWL_ERR(priv, "Memory allocation fail\n"); |
4babc358 WYG |
544 | return -ENOMEM; |
545 | } | |
d33e152e DM |
546 | if (nla_put_u32(skb, IWL_TM_ATTR_COMMAND, |
547 | IWL_TM_CMD_DEV2APP_EEPROM_RSP) || | |
548 | nla_put(skb, IWL_TM_ATTR_EEPROM, | |
549 | cfg(priv)->base_params->eeprom_size, | |
550 | priv->shrd->eeprom)) | |
551 | goto nla_put_failure; | |
4babc358 WYG |
552 | status = cfg80211_testmode_reply(skb); |
553 | if (status < 0) | |
2f73d7c2 WYG |
554 | IWL_ERR(priv, "Error sending msg : %d\n", |
555 | status); | |
4babc358 WYG |
556 | } else |
557 | return -EFAULT; | |
558 | break; | |
559 | ||
6489854b WYG |
560 | case IWL_TM_CMD_APP2DEV_FIXRATE_REQ: |
561 | if (!tb[IWL_TM_ATTR_FIXRATE]) { | |
2f73d7c2 | 562 | IWL_ERR(priv, "Missing fixrate setting\n"); |
6489854b WYG |
563 | return -ENOMSG; |
564 | } | |
4e308119 | 565 | priv->tm_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]); |
6489854b WYG |
566 | break; |
567 | ||
e1a38fe1 | 568 | case IWL_TM_CMD_APP2DEV_GET_FW_VERSION: |
d3596677 | 569 | IWL_INFO(priv, "uCode version raw: 0x%x\n", |
0692fe41 | 570 | priv->fw->ucode_ver); |
e1a38fe1 HK |
571 | |
572 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20); | |
573 | if (!skb) { | |
2f73d7c2 | 574 | IWL_ERR(priv, "Memory allocation fail\n"); |
e1a38fe1 HK |
575 | return -ENOMEM; |
576 | } | |
d33e152e DM |
577 | if (nla_put_u32(skb, IWL_TM_ATTR_FW_VERSION, |
578 | priv->fw->ucode_ver)) | |
579 | goto nla_put_failure; | |
e1a38fe1 HK |
580 | status = cfg80211_testmode_reply(skb); |
581 | if (status < 0) | |
2f73d7c2 | 582 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
e1a38fe1 HK |
583 | break; |
584 | ||
0bec12b8 | 585 | case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID: |
99673ee5 | 586 | devid = trans(priv)->hw_id; |
fb6c1c6c | 587 | IWL_INFO(priv, "hw version: 0x%x\n", devid); |
0bec12b8 HK |
588 | |
589 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20); | |
590 | if (!skb) { | |
2f73d7c2 | 591 | IWL_ERR(priv, "Memory allocation fail\n"); |
0bec12b8 HK |
592 | return -ENOMEM; |
593 | } | |
d33e152e DM |
594 | if (nla_put_u32(skb, IWL_TM_ATTR_DEVICE_ID, devid)) |
595 | goto nla_put_failure; | |
0bec12b8 HK |
596 | status = cfg80211_testmode_reply(skb); |
597 | if (status < 0) | |
2f73d7c2 | 598 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
0bec12b8 HK |
599 | break; |
600 | ||
aca9b5f3 KH |
601 | case IWL_TM_CMD_APP2DEV_GET_FW_INFO: |
602 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20 + 8); | |
603 | if (!skb) { | |
2f73d7c2 | 604 | IWL_ERR(priv, "Memory allocation fail\n"); |
aca9b5f3 KH |
605 | return -ENOMEM; |
606 | } | |
8f7ffbe2 | 607 | if (!priv->ucode_loaded) { |
2f73d7c2 | 608 | IWL_ERR(priv, "No uCode has not been loaded\n"); |
8f7ffbe2 DS |
609 | return -EINVAL; |
610 | } else { | |
a42506eb | 611 | img = &priv->fw->img[priv->cur_ucode]; |
6dfa8d01 DS |
612 | inst_size = img->sec[IWL_UCODE_SECTION_INST].len; |
613 | data_size = img->sec[IWL_UCODE_SECTION_DATA].len; | |
aca9b5f3 | 614 | } |
7eab0f64 | 615 | if (nla_put_u32(skb, IWL_TM_ATTR_FW_TYPE, priv->cur_ucode) || |
d33e152e DM |
616 | nla_put_u32(skb, IWL_TM_ATTR_FW_INST_SIZE, inst_size) || |
617 | nla_put_u32(skb, IWL_TM_ATTR_FW_DATA_SIZE, data_size)) | |
618 | goto nla_put_failure; | |
aca9b5f3 KH |
619 | status = cfg80211_testmode_reply(skb); |
620 | if (status < 0) | |
2f73d7c2 | 621 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
aca9b5f3 KH |
622 | break; |
623 | ||
4613e72d | 624 | default: |
2f73d7c2 | 625 | IWL_ERR(priv, "Unknown testmode driver command ID\n"); |
4613e72d CK |
626 | return -ENOSYS; |
627 | } | |
628 | return status; | |
629 | ||
630 | nla_put_failure: | |
631 | kfree_skb(skb); | |
632 | return -EMSGSIZE; | |
633 | } | |
634 | ||
7a4e5281 WYG |
635 | |
636 | /* | |
637 | * This function handles the user application commands for uCode trace | |
638 | * | |
639 | * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the | |
640 | * handlers respectively. | |
641 | * | |
642 | * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned | |
643 | * value of the actual command execution is replied to the user application. | |
644 | * | |
645 | * @hw: ieee80211_hw object that represents the device | |
646 | * @tb: gnl message fields from the user space | |
647 | */ | |
648 | static int iwl_testmode_trace(struct ieee80211_hw *hw, struct nlattr **tb) | |
649 | { | |
d0f76d68 | 650 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7a4e5281 WYG |
651 | struct sk_buff *skb; |
652 | int status = 0; | |
1042db2a | 653 | struct device *dev = trans(priv)->dev; |
7a4e5281 WYG |
654 | |
655 | switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { | |
656 | case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: | |
657 | if (priv->testmode_trace.trace_enabled) | |
658 | return -EBUSY; | |
659 | ||
49b72100 WYG |
660 | if (!tb[IWL_TM_ATTR_TRACE_SIZE]) |
661 | priv->testmode_trace.buff_size = TRACE_BUFF_SIZE_DEF; | |
662 | else | |
663 | priv->testmode_trace.buff_size = | |
664 | nla_get_u32(tb[IWL_TM_ATTR_TRACE_SIZE]); | |
665 | if (!priv->testmode_trace.buff_size) | |
666 | return -EINVAL; | |
667 | if (priv->testmode_trace.buff_size < TRACE_BUFF_SIZE_MIN || | |
668 | priv->testmode_trace.buff_size > TRACE_BUFF_SIZE_MAX) | |
669 | return -EINVAL; | |
670 | ||
671 | priv->testmode_trace.total_size = | |
672 | priv->testmode_trace.buff_size + TRACE_BUFF_PADD; | |
7a4e5281 WYG |
673 | priv->testmode_trace.cpu_addr = |
674 | dma_alloc_coherent(dev, | |
49b72100 | 675 | priv->testmode_trace.total_size, |
7a4e5281 WYG |
676 | &priv->testmode_trace.dma_addr, |
677 | GFP_KERNEL); | |
678 | if (!priv->testmode_trace.cpu_addr) | |
679 | return -ENOMEM; | |
680 | priv->testmode_trace.trace_enabled = true; | |
681 | priv->testmode_trace.trace_addr = (u8 *)PTR_ALIGN( | |
682 | priv->testmode_trace.cpu_addr, 0x100); | |
683 | memset(priv->testmode_trace.trace_addr, 0x03B, | |
49b72100 | 684 | priv->testmode_trace.buff_size); |
7a4e5281 WYG |
685 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, |
686 | sizeof(priv->testmode_trace.dma_addr) + 20); | |
687 | if (!skb) { | |
2f73d7c2 | 688 | IWL_ERR(priv, "Memory allocation fail\n"); |
7a4e5281 WYG |
689 | iwl_trace_cleanup(priv); |
690 | return -ENOMEM; | |
691 | } | |
d33e152e DM |
692 | if (nla_put(skb, IWL_TM_ATTR_TRACE_ADDR, |
693 | sizeof(priv->testmode_trace.dma_addr), | |
694 | (u64 *)&priv->testmode_trace.dma_addr)) | |
695 | goto nla_put_failure; | |
7a4e5281 WYG |
696 | status = cfg80211_testmode_reply(skb); |
697 | if (status < 0) { | |
2f73d7c2 | 698 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
7a4e5281 | 699 | } |
eb64dca0 WYG |
700 | priv->testmode_trace.num_chunks = |
701 | DIV_ROUND_UP(priv->testmode_trace.buff_size, | |
e056a653 | 702 | DUMP_CHUNK_SIZE); |
7a4e5281 WYG |
703 | break; |
704 | ||
705 | case IWL_TM_CMD_APP2DEV_END_TRACE: | |
706 | iwl_trace_cleanup(priv); | |
707 | break; | |
7a4e5281 | 708 | default: |
2f73d7c2 | 709 | IWL_ERR(priv, "Unknown testmode mem command ID\n"); |
7a4e5281 WYG |
710 | return -ENOSYS; |
711 | } | |
712 | return status; | |
713 | ||
714 | nla_put_failure: | |
715 | kfree_skb(skb); | |
716 | if (nla_get_u32(tb[IWL_TM_ATTR_COMMAND]) == | |
717 | IWL_TM_CMD_APP2DEV_BEGIN_TRACE) | |
718 | iwl_trace_cleanup(priv); | |
719 | return -EMSGSIZE; | |
720 | } | |
721 | ||
c1803c94 | 722 | static int iwl_testmode_trace_dump(struct ieee80211_hw *hw, |
eb64dca0 WYG |
723 | struct sk_buff *skb, |
724 | struct netlink_callback *cb) | |
725 | { | |
d0f76d68 | 726 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
eb64dca0 WYG |
727 | int idx, length; |
728 | ||
729 | if (priv->testmode_trace.trace_enabled && | |
730 | priv->testmode_trace.trace_addr) { | |
731 | idx = cb->args[4]; | |
732 | if (idx >= priv->testmode_trace.num_chunks) | |
733 | return -ENOENT; | |
e056a653 | 734 | length = DUMP_CHUNK_SIZE; |
eb64dca0 | 735 | if (((idx + 1) == priv->testmode_trace.num_chunks) && |
e056a653 | 736 | (priv->testmode_trace.buff_size % DUMP_CHUNK_SIZE)) |
eb64dca0 | 737 | length = priv->testmode_trace.buff_size % |
e056a653 | 738 | DUMP_CHUNK_SIZE; |
eb64dca0 | 739 | |
d33e152e DM |
740 | if (nla_put(skb, IWL_TM_ATTR_TRACE_DUMP, length, |
741 | priv->testmode_trace.trace_addr + | |
742 | (DUMP_CHUNK_SIZE * idx))) | |
743 | goto nla_put_failure; | |
eb64dca0 WYG |
744 | idx++; |
745 | cb->args[4] = idx; | |
746 | return 0; | |
747 | } else | |
748 | return -EFAULT; | |
749 | ||
750 | nla_put_failure: | |
751 | return -ENOBUFS; | |
752 | } | |
753 | ||
e98a1939 WYG |
754 | /* |
755 | * This function handles the user application switch ucode ownership. | |
756 | * | |
757 | * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_OWNER and | |
758 | * decide who the current owner of the uCode | |
759 | * | |
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 | |
762 | * will dropped. | |
763 | * | |
764 | * default driver is the owner of uCode in normal operational mode | |
765 | * | |
766 | * @hw: ieee80211_hw object that represents the device | |
767 | * @tb: gnl message fields from the user space | |
768 | */ | |
769 | static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb) | |
770 | { | |
d0f76d68 | 771 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
e98a1939 WYG |
772 | u8 owner; |
773 | ||
774 | if (!tb[IWL_TM_ATTR_UCODE_OWNER]) { | |
2f73d7c2 | 775 | IWL_ERR(priv, "Missing ucode owner\n"); |
e98a1939 WYG |
776 | return -ENOMSG; |
777 | } | |
778 | ||
779 | owner = nla_get_u8(tb[IWL_TM_ATTR_UCODE_OWNER]); | |
0aef8ddc | 780 | if (owner == IWL_OWNERSHIP_DRIVER) { |
947a9407 | 781 | priv->ucode_owner = owner; |
0aef8ddc AB |
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; | |
786 | } else { | |
2f73d7c2 | 787 | IWL_ERR(priv, "Invalid owner\n"); |
e98a1939 WYG |
788 | return -EINVAL; |
789 | } | |
790 | return 0; | |
791 | } | |
792 | ||
6c55f5ed AB |
793 | static int iwl_testmode_indirect_read(struct iwl_priv *priv, u32 addr, u32 size) |
794 | { | |
795 | struct iwl_trans *trans = trans(priv); | |
796 | unsigned long flags; | |
797 | int i; | |
798 | ||
799 | if (size & 0x3) | |
800 | return -EINVAL; | |
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) | |
805 | return -ENOMEM; | |
806 | ||
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); | |
858b7c74 AB |
812 | iwl_write32(trans, HBUS_TARG_PRPH_RADDR, |
813 | addr | (3 << 24)); | |
6c55f5ed | 814 | for (i = 0; i < size; i += 4) |
858b7c74 | 815 | *(u32 *)(priv->testmode_mem.buff_addr + i) = |
6c55f5ed AB |
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); | |
823 | } | |
824 | ||
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; | |
828 | return 0; | |
829 | ||
830 | } | |
831 | ||
832 | static int iwl_testmode_indirect_write(struct iwl_priv *priv, u32 addr, | |
833 | u32 size, unsigned char *buf) | |
834 | { | |
835 | struct iwl_trans *trans = trans(priv); | |
836 | u32 val, i; | |
837 | unsigned long flags; | |
838 | ||
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 */ | |
842 | if (size < 4) { | |
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, | |
858b7c74 AB |
847 | (addr & 0x0000FFFF) | |
848 | ((size - 1) << 24)); | |
6c55f5ed AB |
849 | iwl_write32(trans, HBUS_TARG_PRPH_WDAT, val); |
850 | iwl_release_nic_access(trans); | |
851 | /* needed after consecutive writes w/o read */ | |
852 | mmiowb(); | |
853 | spin_unlock_irqrestore(&trans->reg_lock, flags); | |
854 | } else { | |
855 | if (size % 4) | |
856 | return -EINVAL; | |
857 | for (i = 0; i < size; i += 4) | |
858 | iwl_write_prph(trans, addr+i, | |
858b7c74 | 859 | *(u32 *)(buf+i)); |
6c55f5ed AB |
860 | } |
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); | |
865 | } else | |
866 | return -EINVAL; | |
867 | return 0; | |
868 | } | |
869 | ||
306713fd HK |
870 | /* |
871 | * This function handles the user application commands for SRAM data dump | |
872 | * | |
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 | |
875 | * | |
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. | |
880 | * | |
881 | * Otherwise 0 is replied indicating the success of the SRAM reading. | |
882 | * | |
883 | * @hw: ieee80211_hw object that represents the device | |
884 | * @tb: gnl message fields from the user space | |
885 | */ | |
6c55f5ed AB |
886 | static int iwl_testmode_indirect_mem(struct ieee80211_hw *hw, |
887 | struct nlattr **tb) | |
306713fd | 888 | { |
d0f76d68 | 889 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
6c55f5ed AB |
890 | u32 addr, size, cmd; |
891 | unsigned char *buf; | |
306713fd | 892 | |
6c55f5ed AB |
893 | /* Both read and write should be blocked, for atomicity */ |
894 | if (priv->testmode_mem.read_in_progress) | |
306713fd HK |
895 | return -EBUSY; |
896 | ||
6c55f5ed AB |
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"); | |
306713fd HK |
900 | return -ENOMSG; |
901 | } | |
6c55f5ed AB |
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"); | |
306713fd HK |
905 | return -ENOMSG; |
906 | } | |
6c55f5ed AB |
907 | size = nla_get_u32(tb[IWL_TM_ATTR_BUFFER_SIZE]); |
908 | ||
909 | if (cmd == IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ) | |
910 | return iwl_testmode_indirect_read(priv, addr, size); | |
911 | else { | |
912 | if (!tb[IWL_TM_ATTR_BUFFER_DUMP]) | |
913 | return -EINVAL; | |
914 | buf = (unsigned char *) nla_data(tb[IWL_TM_ATTR_BUFFER_DUMP]); | |
915 | return iwl_testmode_indirect_write(priv, addr, size, buf); | |
306713fd | 916 | } |
306713fd HK |
917 | } |
918 | ||
c1803c94 JB |
919 | static int iwl_testmode_buffer_dump(struct ieee80211_hw *hw, |
920 | struct sk_buff *skb, | |
921 | struct netlink_callback *cb) | |
306713fd | 922 | { |
d0f76d68 | 923 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
306713fd HK |
924 | int idx, length; |
925 | ||
6c55f5ed | 926 | if (priv->testmode_mem.read_in_progress) { |
306713fd | 927 | idx = cb->args[4]; |
6c55f5ed AB |
928 | if (idx >= priv->testmode_mem.num_chunks) { |
929 | iwl_mem_cleanup(priv); | |
306713fd HK |
930 | return -ENOENT; |
931 | } | |
e056a653 | 932 | length = DUMP_CHUNK_SIZE; |
6c55f5ed AB |
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 % | |
e056a653 | 936 | DUMP_CHUNK_SIZE; |
306713fd | 937 | |
d33e152e DM |
938 | if (nla_put(skb, IWL_TM_ATTR_BUFFER_DUMP, length, |
939 | priv->testmode_mem.buff_addr + | |
940 | (DUMP_CHUNK_SIZE * idx))) | |
941 | goto nla_put_failure; | |
306713fd HK |
942 | idx++; |
943 | cb->args[4] = idx; | |
944 | return 0; | |
945 | } else | |
946 | return -EFAULT; | |
947 | ||
948 | nla_put_failure: | |
949 | return -ENOBUFS; | |
950 | } | |
951 | ||
0aef8ddc AB |
952 | static int iwl_testmode_notifications(struct ieee80211_hw *hw, |
953 | struct nlattr **tb) | |
954 | { | |
955 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
956 | bool enable; | |
957 | ||
958 | enable = nla_get_flag(tb[IWL_TM_ATTR_ENABLE_NOTIFICATION]); | |
959 | if (enable) | |
960 | priv->pre_rx_handler = iwl_testmode_ucode_rx_pkt; | |
961 | else | |
962 | priv->pre_rx_handler = NULL; | |
963 | return 0; | |
964 | } | |
965 | ||
e98a1939 | 966 | |
4613e72d CK |
967 | /* The testmode gnl message handler that takes the gnl message from the |
968 | * user space and parses it per the policy iwl_testmode_gnl_msg_policy, then | |
969 | * invoke the corresponding handlers. | |
970 | * | |
971 | * This function is invoked when there is user space application sending | |
972 | * gnl message through the testmode tunnel NL80211_CMD_TESTMODE regulated | |
973 | * by nl80211. | |
974 | * | |
975 | * It retrieves the mandatory field, IWL_TM_ATTR_COMMAND, before | |
976 | * dispatching it to the corresponding handler. | |
977 | * | |
978 | * If IWL_TM_ATTR_COMMAND is missing, -ENOMSG is replied to user application; | |
979 | * -ENOSYS is replied to the user application if the command is unknown; | |
980 | * Otherwise, the command is dispatched to the respective handler. | |
981 | * | |
982 | * @hw: ieee80211_hw object that represents the device | |
983 | * @data: pointer to user space message | |
984 | * @len: length in byte of @data | |
985 | */ | |
ade4c649 | 986 | int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len) |
4613e72d | 987 | { |
a6779278 | 988 | struct nlattr *tb[IWL_TM_ATTR_MAX]; |
d0f76d68 | 989 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
4613e72d CK |
990 | int result; |
991 | ||
992 | result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len, | |
993 | iwl_testmode_gnl_msg_policy); | |
994 | if (result != 0) { | |
2f73d7c2 | 995 | IWL_ERR(priv, "Error parsing the gnl message : %d\n", result); |
4613e72d CK |
996 | return result; |
997 | } | |
998 | ||
999 | /* IWL_TM_ATTR_COMMAND is absolutely mandatory */ | |
1000 | if (!tb[IWL_TM_ATTR_COMMAND]) { | |
2f73d7c2 | 1001 | IWL_ERR(priv, "Missing testmode command type\n"); |
4613e72d CK |
1002 | return -ENOMSG; |
1003 | } | |
1004 | /* in case multiple accesses to the device happens */ | |
b1eea297 | 1005 | mutex_lock(&priv->mutex); |
4613e72d CK |
1006 | |
1007 | switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { | |
1008 | case IWL_TM_CMD_APP2DEV_UCODE: | |
1009 | IWL_DEBUG_INFO(priv, "testmode cmd to uCode\n"); | |
1010 | result = iwl_testmode_ucode(hw, tb); | |
1011 | break; | |
72bcacc2 HK |
1012 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: |
1013 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: | |
1014 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: | |
4613e72d CK |
1015 | IWL_DEBUG_INFO(priv, "testmode cmd to register\n"); |
1016 | result = iwl_testmode_reg(hw, tb); | |
1017 | break; | |
1018 | case IWL_TM_CMD_APP2DEV_GET_DEVICENAME: | |
1019 | case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: | |
1020 | case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: | |
1021 | case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: | |
4babc358 | 1022 | case IWL_TM_CMD_APP2DEV_GET_EEPROM: |
6489854b | 1023 | case IWL_TM_CMD_APP2DEV_FIXRATE_REQ: |
d4af19fe | 1024 | case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: |
e1a38fe1 | 1025 | case IWL_TM_CMD_APP2DEV_GET_FW_VERSION: |
0bec12b8 | 1026 | case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID: |
aca9b5f3 | 1027 | case IWL_TM_CMD_APP2DEV_GET_FW_INFO: |
4613e72d CK |
1028 | IWL_DEBUG_INFO(priv, "testmode cmd to driver\n"); |
1029 | result = iwl_testmode_driver(hw, tb); | |
1030 | break; | |
7a4e5281 WYG |
1031 | |
1032 | case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: | |
1033 | case IWL_TM_CMD_APP2DEV_END_TRACE: | |
1034 | case IWL_TM_CMD_APP2DEV_READ_TRACE: | |
1035 | IWL_DEBUG_INFO(priv, "testmode uCode trace cmd to driver\n"); | |
1036 | result = iwl_testmode_trace(hw, tb); | |
1037 | break; | |
1038 | ||
e98a1939 WYG |
1039 | case IWL_TM_CMD_APP2DEV_OWNERSHIP: |
1040 | IWL_DEBUG_INFO(priv, "testmode change uCode ownership\n"); | |
1041 | result = iwl_testmode_ownership(hw, tb); | |
1042 | break; | |
1043 | ||
6c55f5ed AB |
1044 | case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ: |
1045 | case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE: | |
1046 | IWL_DEBUG_INFO(priv, "testmode indirect memory cmd " | |
1047 | "to driver\n"); | |
1048 | result = iwl_testmode_indirect_mem(hw, tb); | |
306713fd HK |
1049 | break; |
1050 | ||
0aef8ddc AB |
1051 | case IWL_TM_CMD_APP2DEV_NOTIFICATIONS: |
1052 | IWL_DEBUG_INFO(priv, "testmode notifications cmd " | |
1053 | "to driver\n"); | |
1054 | result = iwl_testmode_notifications(hw, tb); | |
1055 | break; | |
1056 | ||
4613e72d | 1057 | default: |
2f73d7c2 | 1058 | IWL_ERR(priv, "Unknown testmode command\n"); |
4613e72d CK |
1059 | result = -ENOSYS; |
1060 | break; | |
1061 | } | |
1062 | ||
b1eea297 | 1063 | mutex_unlock(&priv->mutex); |
4613e72d CK |
1064 | return result; |
1065 | } | |
eb64dca0 | 1066 | |
ade4c649 | 1067 | int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb, |
eb64dca0 WYG |
1068 | struct netlink_callback *cb, |
1069 | void *data, int len) | |
1070 | { | |
1071 | struct nlattr *tb[IWL_TM_ATTR_MAX]; | |
d0f76d68 | 1072 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
eb64dca0 WYG |
1073 | int result; |
1074 | u32 cmd; | |
1075 | ||
1076 | if (cb->args[3]) { | |
1077 | /* offset by 1 since commands start at 0 */ | |
1078 | cmd = cb->args[3] - 1; | |
1079 | } else { | |
1080 | result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len, | |
1081 | iwl_testmode_gnl_msg_policy); | |
1082 | if (result) { | |
2f73d7c2 WYG |
1083 | IWL_ERR(priv, |
1084 | "Error parsing the gnl message : %d\n", result); | |
eb64dca0 WYG |
1085 | return result; |
1086 | } | |
1087 | ||
1088 | /* IWL_TM_ATTR_COMMAND is absolutely mandatory */ | |
1089 | if (!tb[IWL_TM_ATTR_COMMAND]) { | |
2f73d7c2 | 1090 | IWL_ERR(priv, "Missing testmode command type\n"); |
eb64dca0 WYG |
1091 | return -ENOMSG; |
1092 | } | |
1093 | cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]); | |
1094 | cb->args[3] = cmd + 1; | |
1095 | } | |
1096 | ||
1097 | /* in case multiple accesses to the device happens */ | |
b1eea297 | 1098 | mutex_lock(&priv->mutex); |
eb64dca0 WYG |
1099 | switch (cmd) { |
1100 | case IWL_TM_CMD_APP2DEV_READ_TRACE: | |
1101 | IWL_DEBUG_INFO(priv, "uCode trace cmd to driver\n"); | |
c1803c94 | 1102 | result = iwl_testmode_trace_dump(hw, skb, cb); |
eb64dca0 | 1103 | break; |
6c55f5ed | 1104 | case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_DUMP: |
306713fd | 1105 | IWL_DEBUG_INFO(priv, "testmode sram dump cmd to driver\n"); |
c1803c94 | 1106 | result = iwl_testmode_buffer_dump(hw, skb, cb); |
306713fd | 1107 | break; |
eb64dca0 WYG |
1108 | default: |
1109 | result = -EINVAL; | |
1110 | break; | |
1111 | } | |
1112 | ||
b1eea297 | 1113 | mutex_unlock(&priv->mutex); |
eb64dca0 WYG |
1114 | return result; |
1115 | } |