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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 | } | |
187 | NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, IWL_TM_CMD_DEV2APP_UCODE_RX_PKT); | |
8e81f65f AB |
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); | |
4613e72d CK |
190 | cfg80211_testmode_event(skb, GFP_ATOMIC); |
191 | return; | |
192 | ||
193 | nla_put_failure: | |
194 | kfree_skb(skb); | |
2f73d7c2 | 195 | IWL_ERR(priv, "Ouch, overran buffer, check allocation!\n"); |
4613e72d CK |
196 | } |
197 | ||
198 | void iwl_testmode_init(struct iwl_priv *priv) | |
199 | { | |
0aef8ddc | 200 | priv->pre_rx_handler = NULL; |
7a4e5281 | 201 | priv->testmode_trace.trace_enabled = false; |
6c55f5ed | 202 | priv->testmode_mem.read_in_progress = false; |
306713fd HK |
203 | } |
204 | ||
6c55f5ed | 205 | static void iwl_mem_cleanup(struct iwl_priv *priv) |
306713fd | 206 | { |
6c55f5ed AB |
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; | |
306713fd | 213 | } |
7a4e5281 WYG |
214 | } |
215 | ||
216 | static void iwl_trace_cleanup(struct iwl_priv *priv) | |
217 | { | |
7a4e5281 WYG |
218 | if (priv->testmode_trace.trace_enabled) { |
219 | if (priv->testmode_trace.cpu_addr && | |
220 | priv->testmode_trace.dma_addr) | |
1042db2a | 221 | dma_free_coherent(trans(priv)->dev, |
49b72100 | 222 | priv->testmode_trace.total_size, |
7a4e5281 WYG |
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; | |
49b72100 WYG |
229 | priv->testmode_trace.buff_size = 0; |
230 | priv->testmode_trace.total_size = 0; | |
7a4e5281 WYG |
231 | } |
232 | } | |
233 | ||
234 | ||
235 | void iwl_testmode_cleanup(struct iwl_priv *priv) | |
236 | { | |
237 | iwl_trace_cleanup(priv); | |
6c55f5ed | 238 | iwl_mem_cleanup(priv); |
4613e72d CK |
239 | } |
240 | ||
cdfef6c2 | 241 | |
4613e72d CK |
242 | /* |
243 | * This function handles the user application commands to the ucode. | |
244 | * | |
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. | |
248 | * | |
249 | * If any mandatory field is missing, -ENOMSG is replied to the user space | |
cdfef6c2 AB |
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 | |
253 | * is returned. | |
4613e72d CK |
254 | * |
255 | * @hw: ieee80211_hw object that represents the device | |
256 | * @tb: gnl message fields from the user space | |
257 | */ | |
258 | static int iwl_testmode_ucode(struct ieee80211_hw *hw, struct nlattr **tb) | |
259 | { | |
d0f76d68 | 260 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
4613e72d | 261 | struct iwl_host_cmd cmd; |
cdfef6c2 AB |
262 | struct iwl_rx_packet *pkt; |
263 | struct sk_buff *skb; | |
264 | void *reply_buf; | |
265 | u32 reply_len; | |
266 | int ret; | |
267 | bool cmd_want_skb; | |
4613e72d CK |
268 | |
269 | memset(&cmd, 0, sizeof(struct iwl_host_cmd)); | |
270 | ||
271 | if (!tb[IWL_TM_ATTR_UCODE_CMD_ID] || | |
272 | !tb[IWL_TM_ATTR_UCODE_CMD_DATA]) { | |
2f73d7c2 | 273 | IWL_ERR(priv, "Missing ucode command mandatory fields\n"); |
4613e72d CK |
274 | return -ENOMSG; |
275 | } | |
276 | ||
cdfef6c2 AB |
277 | cmd.flags = CMD_ON_DEMAND | CMD_SYNC; |
278 | cmd_want_skb = nla_get_flag(tb[IWL_TM_ATTR_UCODE_CMD_SKB]); | |
279 | if (cmd_want_skb) | |
280 | cmd.flags |= CMD_WANT_SKB; | |
281 | ||
4613e72d | 282 | cmd.id = nla_get_u8(tb[IWL_TM_ATTR_UCODE_CMD_ID]); |
3fa50738 JB |
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]); | |
4ce7cc2b | 285 | cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; |
cdfef6c2 | 286 | IWL_DEBUG_INFO(priv, "testmode ucode command ID 0x%x, flags 0x%x," |
3fa50738 | 287 | " len %d\n", cmd.id, cmd.flags, cmd.len[0]); |
cdfef6c2 | 288 | |
e10a0533 | 289 | ret = iwl_dvm_send_cmd(priv, &cmd); |
cdfef6c2 AB |
290 | if (ret) { |
291 | IWL_ERR(priv, "Failed to send hcmd\n"); | |
292 | return ret; | |
293 | } | |
294 | if (!cmd_want_skb) | |
295 | return ret; | |
296 | ||
297 | /* Handling return of SKB to the user */ | |
65b94a4a | 298 | pkt = cmd.resp_pkt; |
cdfef6c2 AB |
299 | if (!pkt) { |
300 | IWL_ERR(priv, "HCMD received a null response packet\n"); | |
301 | return ret; | |
302 | } | |
303 | ||
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) { | |
308 | kfree_skb(skb); | |
309 | kfree(reply_buf); | |
310 | return -ENOMEM; | |
311 | } | |
312 | ||
313 | /* The reply is in a page, that we cannot send to user space. */ | |
edabfa91 | 314 | memcpy(reply_buf, &(pkt->hdr), reply_len); |
65b94a4a | 315 | iwl_free_resp(&cmd); |
cdfef6c2 AB |
316 | |
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); | |
320 | ||
321 | nla_put_failure: | |
322 | IWL_DEBUG_INFO(priv, "Failed creating NL attributes\n"); | |
323 | return -ENOMSG; | |
4613e72d CK |
324 | } |
325 | ||
326 | ||
327 | /* | |
328 | * This function handles the user application commands for register access. | |
329 | * | |
330 | * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the | |
331 | * handlers respectively. | |
332 | * | |
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. | |
337 | * | |
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. | |
340 | * | |
341 | * @hw: ieee80211_hw object that represents the device | |
342 | * @tb: gnl message fields from the user space | |
343 | */ | |
344 | static int iwl_testmode_reg(struct ieee80211_hw *hw, struct nlattr **tb) | |
345 | { | |
d0f76d68 | 346 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
6fe7dd0d | 347 | u32 ofs, val32, cmd; |
4613e72d CK |
348 | u8 val8; |
349 | struct sk_buff *skb; | |
350 | int status = 0; | |
351 | ||
352 | if (!tb[IWL_TM_ATTR_REG_OFFSET]) { | |
2f73d7c2 | 353 | IWL_ERR(priv, "Missing register offset\n"); |
4613e72d CK |
354 | return -ENOMSG; |
355 | } | |
356 | ofs = nla_get_u32(tb[IWL_TM_ATTR_REG_OFFSET]); | |
357 | IWL_INFO(priv, "testmode register access command offset 0x%x\n", ofs); | |
358 | ||
6fe7dd0d AB |
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)) { | |
2f73d7c2 | 367 | IWL_ERR(priv, "offset out of segment (0x0 - 0x%x)\n", |
6fe7dd0d AB |
368 | FH_MEM_UPPER_BOUND); |
369 | return -EINVAL; | |
370 | } | |
371 | ||
372 | switch (cmd) { | |
72bcacc2 | 373 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: |
1042db2a | 374 | val32 = iwl_read_direct32(trans(priv), ofs); |
4613e72d CK |
375 | IWL_INFO(priv, "32bit value to read 0x%x\n", val32); |
376 | ||
377 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20); | |
378 | if (!skb) { | |
2f73d7c2 | 379 | IWL_ERR(priv, "Memory allocation fail\n"); |
4613e72d CK |
380 | return -ENOMEM; |
381 | } | |
382 | NLA_PUT_U32(skb, IWL_TM_ATTR_REG_VALUE32, val32); | |
383 | status = cfg80211_testmode_reply(skb); | |
384 | if (status < 0) | |
2f73d7c2 | 385 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
4613e72d | 386 | break; |
72bcacc2 | 387 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: |
4613e72d | 388 | if (!tb[IWL_TM_ATTR_REG_VALUE32]) { |
2f73d7c2 | 389 | IWL_ERR(priv, "Missing value to write\n"); |
4613e72d CK |
390 | return -ENOMSG; |
391 | } else { | |
392 | val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]); | |
393 | IWL_INFO(priv, "32bit value to write 0x%x\n", val32); | |
1042db2a | 394 | iwl_write_direct32(trans(priv), ofs, val32); |
4613e72d CK |
395 | } |
396 | break; | |
72bcacc2 | 397 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: |
4613e72d | 398 | if (!tb[IWL_TM_ATTR_REG_VALUE8]) { |
2f73d7c2 | 399 | IWL_ERR(priv, "Missing value to write\n"); |
4613e72d CK |
400 | return -ENOMSG; |
401 | } else { | |
402 | val8 = nla_get_u8(tb[IWL_TM_ATTR_REG_VALUE8]); | |
403 | IWL_INFO(priv, "8bit value to write 0x%x\n", val8); | |
1042db2a | 404 | iwl_write8(trans(priv), ofs, val8); |
4613e72d CK |
405 | } |
406 | break; | |
407 | default: | |
2f73d7c2 | 408 | IWL_ERR(priv, "Unknown testmode register command ID\n"); |
4613e72d CK |
409 | return -ENOSYS; |
410 | } | |
411 | ||
412 | return status; | |
413 | ||
414 | nla_put_failure: | |
415 | kfree_skb(skb); | |
416 | return -EMSGSIZE; | |
417 | } | |
418 | ||
419 | ||
420 | static int iwl_testmode_cfg_init_calib(struct iwl_priv *priv) | |
421 | { | |
422 | struct iwl_notification_wait calib_wait; | |
db662d47 JB |
423 | static const u8 calib_complete[] = { |
424 | CALIBRATION_COMPLETE_NOTIFICATION | |
425 | }; | |
4613e72d CK |
426 | int ret; |
427 | ||
4bd14dd5 | 428 | iwl_init_notification_wait(&priv->notif_wait, &calib_wait, |
db662d47 | 429 | calib_complete, ARRAY_SIZE(calib_complete), |
4bd14dd5 | 430 | NULL, NULL); |
e1991885 | 431 | ret = iwl_init_alive_start(priv); |
4613e72d | 432 | if (ret) { |
2f73d7c2 | 433 | IWL_ERR(priv, "Fail init calibration: %d\n", ret); |
4613e72d CK |
434 | goto cfg_init_calib_error; |
435 | } | |
436 | ||
4bd14dd5 | 437 | ret = iwl_wait_notification(&priv->notif_wait, &calib_wait, 2 * HZ); |
4613e72d | 438 | if (ret) |
2f73d7c2 | 439 | IWL_ERR(priv, "Error detecting" |
4613e72d CK |
440 | " CALIBRATION_COMPLETE_NOTIFICATION: %d\n", ret); |
441 | return ret; | |
442 | ||
443 | cfg_init_calib_error: | |
4bd14dd5 | 444 | iwl_remove_notification(&priv->notif_wait, &calib_wait); |
4613e72d CK |
445 | return ret; |
446 | } | |
447 | ||
448 | /* | |
449 | * This function handles the user application commands for driver. | |
450 | * | |
451 | * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the | |
452 | * handlers respectively. | |
453 | * | |
454 | * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned | |
455 | * value of the actual command execution is replied to the user application. | |
456 | * | |
457 | * If there's any message responding to the user space, IWL_TM_ATTR_SYNC_RSP | |
458 | * is used for carry the message while IWL_TM_ATTR_COMMAND must set to | |
459 | * IWL_TM_CMD_DEV2APP_SYNC_RSP. | |
460 | * | |
461 | * @hw: ieee80211_hw object that represents the device | |
462 | * @tb: gnl message fields from the user space | |
463 | */ | |
464 | static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb) | |
465 | { | |
d0f76d68 | 466 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
69a679b0 | 467 | struct iwl_trans *trans = trans(priv); |
4613e72d CK |
468 | struct sk_buff *skb; |
469 | unsigned char *rsp_data_ptr = NULL; | |
470 | int status = 0, rsp_data_len = 0; | |
aca9b5f3 | 471 | u32 devid, inst_size = 0, data_size = 0; |
6dfa8d01 | 472 | const struct fw_img *img; |
4613e72d CK |
473 | |
474 | switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { | |
475 | case IWL_TM_CMD_APP2DEV_GET_DEVICENAME: | |
38622419 DF |
476 | rsp_data_ptr = (unsigned char *)cfg(priv)->name; |
477 | rsp_data_len = strlen(cfg(priv)->name); | |
4613e72d CK |
478 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, |
479 | rsp_data_len + 20); | |
480 | if (!skb) { | |
2f73d7c2 | 481 | IWL_ERR(priv, "Memory allocation fail\n"); |
4613e72d CK |
482 | return -ENOMEM; |
483 | } | |
484 | NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, | |
485 | IWL_TM_CMD_DEV2APP_SYNC_RSP); | |
486 | NLA_PUT(skb, IWL_TM_ATTR_SYNC_RSP, | |
487 | rsp_data_len, rsp_data_ptr); | |
488 | status = cfg80211_testmode_reply(skb); | |
489 | if (status < 0) | |
2f73d7c2 | 490 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
4613e72d CK |
491 | break; |
492 | ||
493 | case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: | |
e1991885 | 494 | status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_INIT); |
4613e72d | 495 | if (status) |
2f73d7c2 | 496 | IWL_ERR(priv, "Error loading init ucode: %d\n", status); |
4613e72d CK |
497 | break; |
498 | ||
499 | case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: | |
500 | iwl_testmode_cfg_init_calib(priv); | |
8f7ffbe2 | 501 | priv->ucode_loaded = false; |
69a679b0 | 502 | iwl_trans_stop_device(trans); |
4613e72d CK |
503 | break; |
504 | ||
505 | case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: | |
e1991885 | 506 | status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_REGULAR); |
4613e72d | 507 | if (status) { |
2f73d7c2 | 508 | IWL_ERR(priv, |
4613e72d CK |
509 | "Error loading runtime ucode: %d\n", status); |
510 | break; | |
511 | } | |
512 | status = iwl_alive_start(priv); | |
513 | if (status) | |
2f73d7c2 | 514 | IWL_ERR(priv, |
4613e72d CK |
515 | "Error starting the device: %d\n", status); |
516 | break; | |
517 | ||
d4af19fe HK |
518 | case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: |
519 | iwl_scan_cancel_timeout(priv, 200); | |
8f7ffbe2 | 520 | priv->ucode_loaded = false; |
69a679b0 | 521 | iwl_trans_stop_device(trans); |
e1991885 | 522 | status = iwl_load_ucode_wait_alive(priv, IWL_UCODE_WOWLAN); |
d4af19fe | 523 | if (status) { |
2f73d7c2 | 524 | IWL_ERR(priv, |
d4af19fe HK |
525 | "Error loading WOWLAN ucode: %d\n", status); |
526 | break; | |
527 | } | |
528 | status = iwl_alive_start(priv); | |
529 | if (status) | |
2f73d7c2 | 530 | IWL_ERR(priv, |
d4af19fe HK |
531 | "Error starting the device: %d\n", status); |
532 | break; | |
533 | ||
4babc358 | 534 | case IWL_TM_CMD_APP2DEV_GET_EEPROM: |
ab36eab2 | 535 | if (priv->shrd->eeprom) { |
4babc358 | 536 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, |
38622419 | 537 | cfg(priv)->base_params->eeprom_size + 20); |
4babc358 | 538 | if (!skb) { |
2f73d7c2 | 539 | IWL_ERR(priv, "Memory allocation fail\n"); |
4babc358 WYG |
540 | return -ENOMEM; |
541 | } | |
542 | NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, | |
543 | IWL_TM_CMD_DEV2APP_EEPROM_RSP); | |
544 | NLA_PUT(skb, IWL_TM_ATTR_EEPROM, | |
38622419 | 545 | cfg(priv)->base_params->eeprom_size, |
ab36eab2 | 546 | priv->shrd->eeprom); |
4babc358 WYG |
547 | status = cfg80211_testmode_reply(skb); |
548 | if (status < 0) | |
2f73d7c2 WYG |
549 | IWL_ERR(priv, "Error sending msg : %d\n", |
550 | status); | |
4babc358 WYG |
551 | } else |
552 | return -EFAULT; | |
553 | break; | |
554 | ||
6489854b WYG |
555 | case IWL_TM_CMD_APP2DEV_FIXRATE_REQ: |
556 | if (!tb[IWL_TM_ATTR_FIXRATE]) { | |
2f73d7c2 | 557 | IWL_ERR(priv, "Missing fixrate setting\n"); |
6489854b WYG |
558 | return -ENOMSG; |
559 | } | |
4e308119 | 560 | priv->tm_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]); |
6489854b WYG |
561 | break; |
562 | ||
e1a38fe1 | 563 | case IWL_TM_CMD_APP2DEV_GET_FW_VERSION: |
d3596677 | 564 | IWL_INFO(priv, "uCode version raw: 0x%x\n", |
0692fe41 | 565 | priv->fw->ucode_ver); |
e1a38fe1 HK |
566 | |
567 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20); | |
568 | if (!skb) { | |
2f73d7c2 | 569 | IWL_ERR(priv, "Memory allocation fail\n"); |
e1a38fe1 HK |
570 | return -ENOMEM; |
571 | } | |
d3596677 | 572 | NLA_PUT_U32(skb, IWL_TM_ATTR_FW_VERSION, |
0692fe41 | 573 | priv->fw->ucode_ver); |
e1a38fe1 HK |
574 | status = cfg80211_testmode_reply(skb); |
575 | if (status < 0) | |
2f73d7c2 | 576 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
e1a38fe1 HK |
577 | break; |
578 | ||
0bec12b8 | 579 | case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID: |
99673ee5 | 580 | devid = trans(priv)->hw_id; |
fb6c1c6c | 581 | IWL_INFO(priv, "hw version: 0x%x\n", devid); |
0bec12b8 HK |
582 | |
583 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20); | |
584 | if (!skb) { | |
2f73d7c2 | 585 | IWL_ERR(priv, "Memory allocation fail\n"); |
0bec12b8 HK |
586 | return -ENOMEM; |
587 | } | |
588 | NLA_PUT_U32(skb, IWL_TM_ATTR_DEVICE_ID, devid); | |
589 | status = cfg80211_testmode_reply(skb); | |
590 | if (status < 0) | |
2f73d7c2 | 591 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
0bec12b8 HK |
592 | break; |
593 | ||
aca9b5f3 KH |
594 | case IWL_TM_CMD_APP2DEV_GET_FW_INFO: |
595 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20 + 8); | |
596 | if (!skb) { | |
2f73d7c2 | 597 | IWL_ERR(priv, "Memory allocation fail\n"); |
aca9b5f3 KH |
598 | return -ENOMEM; |
599 | } | |
8f7ffbe2 | 600 | if (!priv->ucode_loaded) { |
2f73d7c2 | 601 | IWL_ERR(priv, "No uCode has not been loaded\n"); |
8f7ffbe2 DS |
602 | return -EINVAL; |
603 | } else { | |
a42506eb | 604 | img = &priv->fw->img[priv->cur_ucode]; |
6dfa8d01 DS |
605 | inst_size = img->sec[IWL_UCODE_SECTION_INST].len; |
606 | data_size = img->sec[IWL_UCODE_SECTION_DATA].len; | |
aca9b5f3 | 607 | } |
a42506eb | 608 | NLA_PUT_U32(skb, IWL_TM_ATTR_FW_TYPE, priv->cur_ucode); |
aca9b5f3 KH |
609 | NLA_PUT_U32(skb, IWL_TM_ATTR_FW_INST_SIZE, inst_size); |
610 | NLA_PUT_U32(skb, IWL_TM_ATTR_FW_DATA_SIZE, data_size); | |
611 | status = cfg80211_testmode_reply(skb); | |
612 | if (status < 0) | |
2f73d7c2 | 613 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
aca9b5f3 KH |
614 | break; |
615 | ||
4613e72d | 616 | default: |
2f73d7c2 | 617 | IWL_ERR(priv, "Unknown testmode driver command ID\n"); |
4613e72d CK |
618 | return -ENOSYS; |
619 | } | |
620 | return status; | |
621 | ||
622 | nla_put_failure: | |
623 | kfree_skb(skb); | |
624 | return -EMSGSIZE; | |
625 | } | |
626 | ||
7a4e5281 WYG |
627 | |
628 | /* | |
629 | * This function handles the user application commands for uCode trace | |
630 | * | |
631 | * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the | |
632 | * handlers respectively. | |
633 | * | |
634 | * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned | |
635 | * value of the actual command execution is replied to the user application. | |
636 | * | |
637 | * @hw: ieee80211_hw object that represents the device | |
638 | * @tb: gnl message fields from the user space | |
639 | */ | |
640 | static int iwl_testmode_trace(struct ieee80211_hw *hw, struct nlattr **tb) | |
641 | { | |
d0f76d68 | 642 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
7a4e5281 WYG |
643 | struct sk_buff *skb; |
644 | int status = 0; | |
1042db2a | 645 | struct device *dev = trans(priv)->dev; |
7a4e5281 WYG |
646 | |
647 | switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { | |
648 | case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: | |
649 | if (priv->testmode_trace.trace_enabled) | |
650 | return -EBUSY; | |
651 | ||
49b72100 WYG |
652 | if (!tb[IWL_TM_ATTR_TRACE_SIZE]) |
653 | priv->testmode_trace.buff_size = TRACE_BUFF_SIZE_DEF; | |
654 | else | |
655 | priv->testmode_trace.buff_size = | |
656 | nla_get_u32(tb[IWL_TM_ATTR_TRACE_SIZE]); | |
657 | if (!priv->testmode_trace.buff_size) | |
658 | return -EINVAL; | |
659 | if (priv->testmode_trace.buff_size < TRACE_BUFF_SIZE_MIN || | |
660 | priv->testmode_trace.buff_size > TRACE_BUFF_SIZE_MAX) | |
661 | return -EINVAL; | |
662 | ||
663 | priv->testmode_trace.total_size = | |
664 | priv->testmode_trace.buff_size + TRACE_BUFF_PADD; | |
7a4e5281 WYG |
665 | priv->testmode_trace.cpu_addr = |
666 | dma_alloc_coherent(dev, | |
49b72100 | 667 | priv->testmode_trace.total_size, |
7a4e5281 WYG |
668 | &priv->testmode_trace.dma_addr, |
669 | GFP_KERNEL); | |
670 | if (!priv->testmode_trace.cpu_addr) | |
671 | return -ENOMEM; | |
672 | priv->testmode_trace.trace_enabled = true; | |
673 | priv->testmode_trace.trace_addr = (u8 *)PTR_ALIGN( | |
674 | priv->testmode_trace.cpu_addr, 0x100); | |
675 | memset(priv->testmode_trace.trace_addr, 0x03B, | |
49b72100 | 676 | priv->testmode_trace.buff_size); |
7a4e5281 WYG |
677 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, |
678 | sizeof(priv->testmode_trace.dma_addr) + 20); | |
679 | if (!skb) { | |
2f73d7c2 | 680 | IWL_ERR(priv, "Memory allocation fail\n"); |
7a4e5281 WYG |
681 | iwl_trace_cleanup(priv); |
682 | return -ENOMEM; | |
683 | } | |
684 | NLA_PUT(skb, IWL_TM_ATTR_TRACE_ADDR, | |
685 | sizeof(priv->testmode_trace.dma_addr), | |
686 | (u64 *)&priv->testmode_trace.dma_addr); | |
687 | status = cfg80211_testmode_reply(skb); | |
688 | if (status < 0) { | |
2f73d7c2 | 689 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
7a4e5281 | 690 | } |
eb64dca0 WYG |
691 | priv->testmode_trace.num_chunks = |
692 | DIV_ROUND_UP(priv->testmode_trace.buff_size, | |
e056a653 | 693 | DUMP_CHUNK_SIZE); |
7a4e5281 WYG |
694 | break; |
695 | ||
696 | case IWL_TM_CMD_APP2DEV_END_TRACE: | |
697 | iwl_trace_cleanup(priv); | |
698 | break; | |
7a4e5281 | 699 | default: |
2f73d7c2 | 700 | IWL_ERR(priv, "Unknown testmode mem command ID\n"); |
7a4e5281 WYG |
701 | return -ENOSYS; |
702 | } | |
703 | return status; | |
704 | ||
705 | nla_put_failure: | |
706 | kfree_skb(skb); | |
707 | if (nla_get_u32(tb[IWL_TM_ATTR_COMMAND]) == | |
708 | IWL_TM_CMD_APP2DEV_BEGIN_TRACE) | |
709 | iwl_trace_cleanup(priv); | |
710 | return -EMSGSIZE; | |
711 | } | |
712 | ||
c1803c94 | 713 | static int iwl_testmode_trace_dump(struct ieee80211_hw *hw, |
eb64dca0 WYG |
714 | struct sk_buff *skb, |
715 | struct netlink_callback *cb) | |
716 | { | |
d0f76d68 | 717 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
eb64dca0 WYG |
718 | int idx, length; |
719 | ||
720 | if (priv->testmode_trace.trace_enabled && | |
721 | priv->testmode_trace.trace_addr) { | |
722 | idx = cb->args[4]; | |
723 | if (idx >= priv->testmode_trace.num_chunks) | |
724 | return -ENOENT; | |
e056a653 | 725 | length = DUMP_CHUNK_SIZE; |
eb64dca0 | 726 | if (((idx + 1) == priv->testmode_trace.num_chunks) && |
e056a653 | 727 | (priv->testmode_trace.buff_size % DUMP_CHUNK_SIZE)) |
eb64dca0 | 728 | length = priv->testmode_trace.buff_size % |
e056a653 | 729 | DUMP_CHUNK_SIZE; |
eb64dca0 WYG |
730 | |
731 | NLA_PUT(skb, IWL_TM_ATTR_TRACE_DUMP, length, | |
732 | priv->testmode_trace.trace_addr + | |
e056a653 | 733 | (DUMP_CHUNK_SIZE * idx)); |
eb64dca0 WYG |
734 | idx++; |
735 | cb->args[4] = idx; | |
736 | return 0; | |
737 | } else | |
738 | return -EFAULT; | |
739 | ||
740 | nla_put_failure: | |
741 | return -ENOBUFS; | |
742 | } | |
743 | ||
e98a1939 WYG |
744 | /* |
745 | * This function handles the user application switch ucode ownership. | |
746 | * | |
747 | * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_OWNER and | |
748 | * decide who the current owner of the uCode | |
749 | * | |
750 | * If the current owner is OWNERSHIP_TM, then the only host command | |
751 | * can deliver to uCode is from testmode, all the other host commands | |
752 | * will dropped. | |
753 | * | |
754 | * default driver is the owner of uCode in normal operational mode | |
755 | * | |
756 | * @hw: ieee80211_hw object that represents the device | |
757 | * @tb: gnl message fields from the user space | |
758 | */ | |
759 | static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb) | |
760 | { | |
d0f76d68 | 761 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
e98a1939 WYG |
762 | u8 owner; |
763 | ||
764 | if (!tb[IWL_TM_ATTR_UCODE_OWNER]) { | |
2f73d7c2 | 765 | IWL_ERR(priv, "Missing ucode owner\n"); |
e98a1939 WYG |
766 | return -ENOMSG; |
767 | } | |
768 | ||
769 | owner = nla_get_u8(tb[IWL_TM_ATTR_UCODE_OWNER]); | |
0aef8ddc | 770 | if (owner == IWL_OWNERSHIP_DRIVER) { |
947a9407 | 771 | priv->ucode_owner = owner; |
0aef8ddc AB |
772 | priv->pre_rx_handler = NULL; |
773 | } else if (owner == IWL_OWNERSHIP_TM) { | |
774 | priv->pre_rx_handler = iwl_testmode_ucode_rx_pkt; | |
775 | priv->ucode_owner = owner; | |
776 | } else { | |
2f73d7c2 | 777 | IWL_ERR(priv, "Invalid owner\n"); |
e98a1939 WYG |
778 | return -EINVAL; |
779 | } | |
780 | return 0; | |
781 | } | |
782 | ||
6c55f5ed AB |
783 | static int iwl_testmode_indirect_read(struct iwl_priv *priv, u32 addr, u32 size) |
784 | { | |
785 | struct iwl_trans *trans = trans(priv); | |
786 | unsigned long flags; | |
787 | int i; | |
788 | ||
789 | if (size & 0x3) | |
790 | return -EINVAL; | |
791 | priv->testmode_mem.buff_size = size; | |
792 | priv->testmode_mem.buff_addr = | |
793 | kmalloc(priv->testmode_mem.buff_size, GFP_KERNEL); | |
794 | if (priv->testmode_mem.buff_addr == NULL) | |
795 | return -ENOMEM; | |
796 | ||
797 | /* Hard-coded periphery absolute address */ | |
798 | if (IWL_TM_ABS_PRPH_START <= addr && | |
799 | addr < IWL_TM_ABS_PRPH_START + PRPH_END) { | |
800 | spin_lock_irqsave(&trans->reg_lock, flags); | |
801 | iwl_grab_nic_access(trans); | |
858b7c74 AB |
802 | iwl_write32(trans, HBUS_TARG_PRPH_RADDR, |
803 | addr | (3 << 24)); | |
6c55f5ed | 804 | for (i = 0; i < size; i += 4) |
858b7c74 | 805 | *(u32 *)(priv->testmode_mem.buff_addr + i) = |
6c55f5ed AB |
806 | iwl_read32(trans, HBUS_TARG_PRPH_RDAT); |
807 | iwl_release_nic_access(trans); | |
808 | spin_unlock_irqrestore(&trans->reg_lock, flags); | |
809 | } else { /* target memory (SRAM) */ | |
810 | _iwl_read_targ_mem_words(trans, addr, | |
811 | priv->testmode_mem.buff_addr, | |
812 | priv->testmode_mem.buff_size / 4); | |
813 | } | |
814 | ||
815 | priv->testmode_mem.num_chunks = | |
816 | DIV_ROUND_UP(priv->testmode_mem.buff_size, DUMP_CHUNK_SIZE); | |
817 | priv->testmode_mem.read_in_progress = true; | |
818 | return 0; | |
819 | ||
820 | } | |
821 | ||
822 | static int iwl_testmode_indirect_write(struct iwl_priv *priv, u32 addr, | |
823 | u32 size, unsigned char *buf) | |
824 | { | |
825 | struct iwl_trans *trans = trans(priv); | |
826 | u32 val, i; | |
827 | unsigned long flags; | |
828 | ||
829 | if (IWL_TM_ABS_PRPH_START <= addr && | |
830 | addr < IWL_TM_ABS_PRPH_START + PRPH_END) { | |
831 | /* Periphery writes can be 1-3 bytes long, or DWORDs */ | |
832 | if (size < 4) { | |
833 | memcpy(&val, buf, size); | |
834 | spin_lock_irqsave(&trans->reg_lock, flags); | |
835 | iwl_grab_nic_access(trans); | |
836 | iwl_write32(trans, HBUS_TARG_PRPH_WADDR, | |
858b7c74 AB |
837 | (addr & 0x0000FFFF) | |
838 | ((size - 1) << 24)); | |
6c55f5ed AB |
839 | iwl_write32(trans, HBUS_TARG_PRPH_WDAT, val); |
840 | iwl_release_nic_access(trans); | |
841 | /* needed after consecutive writes w/o read */ | |
842 | mmiowb(); | |
843 | spin_unlock_irqrestore(&trans->reg_lock, flags); | |
844 | } else { | |
845 | if (size % 4) | |
846 | return -EINVAL; | |
847 | for (i = 0; i < size; i += 4) | |
848 | iwl_write_prph(trans, addr+i, | |
858b7c74 | 849 | *(u32 *)(buf+i)); |
6c55f5ed AB |
850 | } |
851 | } else if (iwlagn_hw_valid_rtc_data_addr(addr) || | |
852 | (IWLAGN_RTC_INST_LOWER_BOUND <= addr && | |
853 | addr < IWLAGN_RTC_INST_UPPER_BOUND)) { | |
854 | _iwl_write_targ_mem_words(trans, addr, buf, size/4); | |
855 | } else | |
856 | return -EINVAL; | |
857 | return 0; | |
858 | } | |
859 | ||
306713fd HK |
860 | /* |
861 | * This function handles the user application commands for SRAM data dump | |
862 | * | |
863 | * It retrieves the mandatory fields IWL_TM_ATTR_SRAM_ADDR and | |
864 | * IWL_TM_ATTR_SRAM_SIZE to decide the memory area for SRAM data reading | |
865 | * | |
866 | * Several error will be retured, -EBUSY if the SRAM data retrieved by | |
867 | * previous command has not been delivered to userspace, or -ENOMSG if | |
868 | * the mandatory fields (IWL_TM_ATTR_SRAM_ADDR,IWL_TM_ATTR_SRAM_SIZE) | |
869 | * are missing, or -ENOMEM if the buffer allocation fails. | |
870 | * | |
871 | * Otherwise 0 is replied indicating the success of the SRAM reading. | |
872 | * | |
873 | * @hw: ieee80211_hw object that represents the device | |
874 | * @tb: gnl message fields from the user space | |
875 | */ | |
6c55f5ed AB |
876 | static int iwl_testmode_indirect_mem(struct ieee80211_hw *hw, |
877 | struct nlattr **tb) | |
306713fd | 878 | { |
d0f76d68 | 879 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
6c55f5ed AB |
880 | u32 addr, size, cmd; |
881 | unsigned char *buf; | |
306713fd | 882 | |
6c55f5ed AB |
883 | /* Both read and write should be blocked, for atomicity */ |
884 | if (priv->testmode_mem.read_in_progress) | |
306713fd HK |
885 | return -EBUSY; |
886 | ||
6c55f5ed AB |
887 | cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]); |
888 | if (!tb[IWL_TM_ATTR_MEM_ADDR]) { | |
889 | IWL_ERR(priv, "Error finding memory offset address\n"); | |
306713fd HK |
890 | return -ENOMSG; |
891 | } | |
6c55f5ed AB |
892 | addr = nla_get_u32(tb[IWL_TM_ATTR_MEM_ADDR]); |
893 | if (!tb[IWL_TM_ATTR_BUFFER_SIZE]) { | |
894 | IWL_ERR(priv, "Error finding size for memory reading\n"); | |
306713fd HK |
895 | return -ENOMSG; |
896 | } | |
6c55f5ed AB |
897 | size = nla_get_u32(tb[IWL_TM_ATTR_BUFFER_SIZE]); |
898 | ||
899 | if (cmd == IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ) | |
900 | return iwl_testmode_indirect_read(priv, addr, size); | |
901 | else { | |
902 | if (!tb[IWL_TM_ATTR_BUFFER_DUMP]) | |
903 | return -EINVAL; | |
904 | buf = (unsigned char *) nla_data(tb[IWL_TM_ATTR_BUFFER_DUMP]); | |
905 | return iwl_testmode_indirect_write(priv, addr, size, buf); | |
306713fd | 906 | } |
306713fd HK |
907 | } |
908 | ||
c1803c94 JB |
909 | static int iwl_testmode_buffer_dump(struct ieee80211_hw *hw, |
910 | struct sk_buff *skb, | |
911 | struct netlink_callback *cb) | |
306713fd | 912 | { |
d0f76d68 | 913 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
306713fd HK |
914 | int idx, length; |
915 | ||
6c55f5ed | 916 | if (priv->testmode_mem.read_in_progress) { |
306713fd | 917 | idx = cb->args[4]; |
6c55f5ed AB |
918 | if (idx >= priv->testmode_mem.num_chunks) { |
919 | iwl_mem_cleanup(priv); | |
306713fd HK |
920 | return -ENOENT; |
921 | } | |
e056a653 | 922 | length = DUMP_CHUNK_SIZE; |
6c55f5ed AB |
923 | if (((idx + 1) == priv->testmode_mem.num_chunks) && |
924 | (priv->testmode_mem.buff_size % DUMP_CHUNK_SIZE)) | |
925 | length = priv->testmode_mem.buff_size % | |
e056a653 | 926 | DUMP_CHUNK_SIZE; |
306713fd | 927 | |
6c55f5ed AB |
928 | NLA_PUT(skb, IWL_TM_ATTR_BUFFER_DUMP, length, |
929 | priv->testmode_mem.buff_addr + | |
e056a653 | 930 | (DUMP_CHUNK_SIZE * idx)); |
306713fd HK |
931 | idx++; |
932 | cb->args[4] = idx; | |
933 | return 0; | |
934 | } else | |
935 | return -EFAULT; | |
936 | ||
937 | nla_put_failure: | |
938 | return -ENOBUFS; | |
939 | } | |
940 | ||
0aef8ddc AB |
941 | static int iwl_testmode_notifications(struct ieee80211_hw *hw, |
942 | struct nlattr **tb) | |
943 | { | |
944 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); | |
945 | bool enable; | |
946 | ||
947 | enable = nla_get_flag(tb[IWL_TM_ATTR_ENABLE_NOTIFICATION]); | |
948 | if (enable) | |
949 | priv->pre_rx_handler = iwl_testmode_ucode_rx_pkt; | |
950 | else | |
951 | priv->pre_rx_handler = NULL; | |
952 | return 0; | |
953 | } | |
954 | ||
e98a1939 | 955 | |
4613e72d CK |
956 | /* The testmode gnl message handler that takes the gnl message from the |
957 | * user space and parses it per the policy iwl_testmode_gnl_msg_policy, then | |
958 | * invoke the corresponding handlers. | |
959 | * | |
960 | * This function is invoked when there is user space application sending | |
961 | * gnl message through the testmode tunnel NL80211_CMD_TESTMODE regulated | |
962 | * by nl80211. | |
963 | * | |
964 | * It retrieves the mandatory field, IWL_TM_ATTR_COMMAND, before | |
965 | * dispatching it to the corresponding handler. | |
966 | * | |
967 | * If IWL_TM_ATTR_COMMAND is missing, -ENOMSG is replied to user application; | |
968 | * -ENOSYS is replied to the user application if the command is unknown; | |
969 | * Otherwise, the command is dispatched to the respective handler. | |
970 | * | |
971 | * @hw: ieee80211_hw object that represents the device | |
972 | * @data: pointer to user space message | |
973 | * @len: length in byte of @data | |
974 | */ | |
ade4c649 | 975 | int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len) |
4613e72d | 976 | { |
a6779278 | 977 | struct nlattr *tb[IWL_TM_ATTR_MAX]; |
d0f76d68 | 978 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
4613e72d CK |
979 | int result; |
980 | ||
981 | result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len, | |
982 | iwl_testmode_gnl_msg_policy); | |
983 | if (result != 0) { | |
2f73d7c2 | 984 | IWL_ERR(priv, "Error parsing the gnl message : %d\n", result); |
4613e72d CK |
985 | return result; |
986 | } | |
987 | ||
988 | /* IWL_TM_ATTR_COMMAND is absolutely mandatory */ | |
989 | if (!tb[IWL_TM_ATTR_COMMAND]) { | |
2f73d7c2 | 990 | IWL_ERR(priv, "Missing testmode command type\n"); |
4613e72d CK |
991 | return -ENOMSG; |
992 | } | |
993 | /* in case multiple accesses to the device happens */ | |
b1eea297 | 994 | mutex_lock(&priv->mutex); |
4613e72d CK |
995 | |
996 | switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { | |
997 | case IWL_TM_CMD_APP2DEV_UCODE: | |
998 | IWL_DEBUG_INFO(priv, "testmode cmd to uCode\n"); | |
999 | result = iwl_testmode_ucode(hw, tb); | |
1000 | break; | |
72bcacc2 HK |
1001 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: |
1002 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: | |
1003 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: | |
4613e72d CK |
1004 | IWL_DEBUG_INFO(priv, "testmode cmd to register\n"); |
1005 | result = iwl_testmode_reg(hw, tb); | |
1006 | break; | |
1007 | case IWL_TM_CMD_APP2DEV_GET_DEVICENAME: | |
1008 | case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: | |
1009 | case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: | |
1010 | case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: | |
4babc358 | 1011 | case IWL_TM_CMD_APP2DEV_GET_EEPROM: |
6489854b | 1012 | case IWL_TM_CMD_APP2DEV_FIXRATE_REQ: |
d4af19fe | 1013 | case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: |
e1a38fe1 | 1014 | case IWL_TM_CMD_APP2DEV_GET_FW_VERSION: |
0bec12b8 | 1015 | case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID: |
aca9b5f3 | 1016 | case IWL_TM_CMD_APP2DEV_GET_FW_INFO: |
4613e72d CK |
1017 | IWL_DEBUG_INFO(priv, "testmode cmd to driver\n"); |
1018 | result = iwl_testmode_driver(hw, tb); | |
1019 | break; | |
7a4e5281 WYG |
1020 | |
1021 | case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: | |
1022 | case IWL_TM_CMD_APP2DEV_END_TRACE: | |
1023 | case IWL_TM_CMD_APP2DEV_READ_TRACE: | |
1024 | IWL_DEBUG_INFO(priv, "testmode uCode trace cmd to driver\n"); | |
1025 | result = iwl_testmode_trace(hw, tb); | |
1026 | break; | |
1027 | ||
e98a1939 WYG |
1028 | case IWL_TM_CMD_APP2DEV_OWNERSHIP: |
1029 | IWL_DEBUG_INFO(priv, "testmode change uCode ownership\n"); | |
1030 | result = iwl_testmode_ownership(hw, tb); | |
1031 | break; | |
1032 | ||
6c55f5ed AB |
1033 | case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ: |
1034 | case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE: | |
1035 | IWL_DEBUG_INFO(priv, "testmode indirect memory cmd " | |
1036 | "to driver\n"); | |
1037 | result = iwl_testmode_indirect_mem(hw, tb); | |
306713fd HK |
1038 | break; |
1039 | ||
0aef8ddc AB |
1040 | case IWL_TM_CMD_APP2DEV_NOTIFICATIONS: |
1041 | IWL_DEBUG_INFO(priv, "testmode notifications cmd " | |
1042 | "to driver\n"); | |
1043 | result = iwl_testmode_notifications(hw, tb); | |
1044 | break; | |
1045 | ||
4613e72d | 1046 | default: |
2f73d7c2 | 1047 | IWL_ERR(priv, "Unknown testmode command\n"); |
4613e72d CK |
1048 | result = -ENOSYS; |
1049 | break; | |
1050 | } | |
1051 | ||
b1eea297 | 1052 | mutex_unlock(&priv->mutex); |
4613e72d CK |
1053 | return result; |
1054 | } | |
eb64dca0 | 1055 | |
ade4c649 | 1056 | int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb, |
eb64dca0 WYG |
1057 | struct netlink_callback *cb, |
1058 | void *data, int len) | |
1059 | { | |
1060 | struct nlattr *tb[IWL_TM_ATTR_MAX]; | |
d0f76d68 | 1061 | struct iwl_priv *priv = IWL_MAC80211_GET_DVM(hw); |
eb64dca0 WYG |
1062 | int result; |
1063 | u32 cmd; | |
1064 | ||
1065 | if (cb->args[3]) { | |
1066 | /* offset by 1 since commands start at 0 */ | |
1067 | cmd = cb->args[3] - 1; | |
1068 | } else { | |
1069 | result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len, | |
1070 | iwl_testmode_gnl_msg_policy); | |
1071 | if (result) { | |
2f73d7c2 WYG |
1072 | IWL_ERR(priv, |
1073 | "Error parsing the gnl message : %d\n", result); | |
eb64dca0 WYG |
1074 | return result; |
1075 | } | |
1076 | ||
1077 | /* IWL_TM_ATTR_COMMAND is absolutely mandatory */ | |
1078 | if (!tb[IWL_TM_ATTR_COMMAND]) { | |
2f73d7c2 | 1079 | IWL_ERR(priv, "Missing testmode command type\n"); |
eb64dca0 WYG |
1080 | return -ENOMSG; |
1081 | } | |
1082 | cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]); | |
1083 | cb->args[3] = cmd + 1; | |
1084 | } | |
1085 | ||
1086 | /* in case multiple accesses to the device happens */ | |
b1eea297 | 1087 | mutex_lock(&priv->mutex); |
eb64dca0 WYG |
1088 | switch (cmd) { |
1089 | case IWL_TM_CMD_APP2DEV_READ_TRACE: | |
1090 | IWL_DEBUG_INFO(priv, "uCode trace cmd to driver\n"); | |
c1803c94 | 1091 | result = iwl_testmode_trace_dump(hw, skb, cb); |
eb64dca0 | 1092 | break; |
6c55f5ed | 1093 | case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_DUMP: |
306713fd | 1094 | IWL_DEBUG_INFO(priv, "testmode sram dump cmd to driver\n"); |
c1803c94 | 1095 | result = iwl_testmode_buffer_dump(hw, skb, cb); |
306713fd | 1096 | break; |
eb64dca0 WYG |
1097 | default: |
1098 | result = -EINVAL; | |
1099 | break; | |
1100 | } | |
1101 | ||
b1eea297 | 1102 | mutex_unlock(&priv->mutex); |
eb64dca0 WYG |
1103 | return result; |
1104 | } |