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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 | ||
69a679b0 | 73 | #include "iwl-wifi.h" |
4613e72d CK |
74 | #include "iwl-dev.h" |
75 | #include "iwl-core.h" | |
76 | #include "iwl-debug.h" | |
4613e72d CK |
77 | #include "iwl-io.h" |
78 | #include "iwl-agn.h" | |
79 | #include "iwl-testmode.h" | |
bdfbf092 | 80 | #include "iwl-trans.h" |
0bec12b8 | 81 | #include "iwl-bus.h" |
6fe7dd0d | 82 | #include "iwl-fh.h" |
4613e72d | 83 | |
6c55f5ed AB |
84 | |
85 | /* Periphery registers absolute lower bound. This is used in order to | |
86 | * differentiate registery access through HBUS_TARG_PRPH_* and | |
87 | * HBUS_TARG_MEM_* accesses. | |
88 | */ | |
89 | #define IWL_TM_ABS_PRPH_START (0xA00000) | |
90 | ||
4613e72d CK |
91 | /* The TLVs used in the gnl message policy between the kernel module and |
92 | * user space application. iwl_testmode_gnl_msg_policy is to be carried | |
93 | * through the NL80211_CMD_TESTMODE channel regulated by nl80211. | |
94 | * See iwl-testmode.h | |
95 | */ | |
96 | static | |
97 | struct nla_policy iwl_testmode_gnl_msg_policy[IWL_TM_ATTR_MAX] = { | |
98 | [IWL_TM_ATTR_COMMAND] = { .type = NLA_U32, }, | |
99 | ||
100 | [IWL_TM_ATTR_UCODE_CMD_ID] = { .type = NLA_U8, }, | |
101 | [IWL_TM_ATTR_UCODE_CMD_DATA] = { .type = NLA_UNSPEC, }, | |
102 | ||
103 | [IWL_TM_ATTR_REG_OFFSET] = { .type = NLA_U32, }, | |
104 | [IWL_TM_ATTR_REG_VALUE8] = { .type = NLA_U8, }, | |
105 | [IWL_TM_ATTR_REG_VALUE32] = { .type = NLA_U32, }, | |
106 | ||
107 | [IWL_TM_ATTR_SYNC_RSP] = { .type = NLA_UNSPEC, }, | |
108 | [IWL_TM_ATTR_UCODE_RX_PKT] = { .type = NLA_UNSPEC, }, | |
7a4e5281 | 109 | |
4babc358 WYG |
110 | [IWL_TM_ATTR_EEPROM] = { .type = NLA_UNSPEC, }, |
111 | ||
7a4e5281 | 112 | [IWL_TM_ATTR_TRACE_ADDR] = { .type = NLA_UNSPEC, }, |
eb64dca0 | 113 | [IWL_TM_ATTR_TRACE_DUMP] = { .type = NLA_UNSPEC, }, |
49b72100 | 114 | [IWL_TM_ATTR_TRACE_SIZE] = { .type = NLA_U32, }, |
7a4e5281 | 115 | |
6489854b | 116 | [IWL_TM_ATTR_FIXRATE] = { .type = NLA_U32, }, |
49b72100 | 117 | |
e98a1939 | 118 | [IWL_TM_ATTR_UCODE_OWNER] = { .type = NLA_U8, }, |
306713fd | 119 | |
6c55f5ed AB |
120 | [IWL_TM_ATTR_MEM_ADDR] = { .type = NLA_U32, }, |
121 | [IWL_TM_ATTR_BUFFER_SIZE] = { .type = NLA_U32, }, | |
122 | [IWL_TM_ATTR_BUFFER_DUMP] = { .type = NLA_UNSPEC, }, | |
e1a38fe1 HK |
123 | |
124 | [IWL_TM_ATTR_FW_VERSION] = { .type = NLA_U32, }, | |
0bec12b8 | 125 | [IWL_TM_ATTR_DEVICE_ID] = { .type = NLA_U32, }, |
aca9b5f3 KH |
126 | [IWL_TM_ATTR_FW_TYPE] = { .type = NLA_U32, }, |
127 | [IWL_TM_ATTR_FW_INST_SIZE] = { .type = NLA_U32, }, | |
128 | [IWL_TM_ATTR_FW_DATA_SIZE] = { .type = NLA_U32, }, | |
4613e72d CK |
129 | }; |
130 | ||
131 | /* | |
132 | * See the struct iwl_rx_packet in iwl-commands.h for the format of the | |
133 | * received events from the device | |
134 | */ | |
135 | static inline int get_event_length(struct iwl_rx_mem_buffer *rxb) | |
136 | { | |
137 | struct iwl_rx_packet *pkt = rxb_addr(rxb); | |
138 | if (pkt) | |
139 | return le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; | |
140 | else | |
141 | return 0; | |
142 | } | |
143 | ||
144 | ||
145 | /* | |
146 | * This function multicasts the spontaneous messages from the device to the | |
147 | * user space. It is invoked whenever there is a received messages | |
148 | * from the device. This function is called within the ISR of the rx handlers | |
149 | * in iwlagn driver. | |
150 | * | |
151 | * The parsing of the message content is left to the user space application, | |
152 | * The message content is treated as unattacked raw data and is encapsulated | |
153 | * with IWL_TM_ATTR_UCODE_RX_PKT multicasting to the user space. | |
154 | * | |
155 | * @priv: the instance of iwlwifi device | |
156 | * @rxb: pointer to rx data content received by the ISR | |
157 | * | |
158 | * See the message policies and TLVs in iwl_testmode_gnl_msg_policy[]. | |
159 | * For the messages multicasting to the user application, the mandatory | |
160 | * TLV fields are : | |
161 | * IWL_TM_ATTR_COMMAND must be IWL_TM_CMD_DEV2APP_UCODE_RX_PKT | |
162 | * IWL_TM_ATTR_UCODE_RX_PKT for carrying the message content | |
163 | */ | |
164 | ||
165 | static void iwl_testmode_ucode_rx_pkt(struct iwl_priv *priv, | |
166 | struct iwl_rx_mem_buffer *rxb) | |
167 | { | |
168 | struct ieee80211_hw *hw = priv->hw; | |
169 | struct sk_buff *skb; | |
170 | void *data; | |
171 | int length; | |
172 | ||
173 | data = (void *)rxb_addr(rxb); | |
174 | length = get_event_length(rxb); | |
175 | ||
176 | if (!data || length == 0) | |
177 | return; | |
178 | ||
179 | skb = cfg80211_testmode_alloc_event_skb(hw->wiphy, 20 + length, | |
180 | GFP_ATOMIC); | |
181 | if (skb == NULL) { | |
2f73d7c2 | 182 | IWL_ERR(priv, |
4613e72d CK |
183 | "Run out of memory for messages to user space ?\n"); |
184 | return; | |
185 | } | |
186 | NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, IWL_TM_CMD_DEV2APP_UCODE_RX_PKT); | |
187 | NLA_PUT(skb, IWL_TM_ATTR_UCODE_RX_PKT, length, data); | |
188 | cfg80211_testmode_event(skb, GFP_ATOMIC); | |
189 | return; | |
190 | ||
191 | nla_put_failure: | |
192 | kfree_skb(skb); | |
2f73d7c2 | 193 | IWL_ERR(priv, "Ouch, overran buffer, check allocation!\n"); |
4613e72d CK |
194 | } |
195 | ||
196 | void iwl_testmode_init(struct iwl_priv *priv) | |
197 | { | |
198 | priv->pre_rx_handler = iwl_testmode_ucode_rx_pkt; | |
7a4e5281 | 199 | priv->testmode_trace.trace_enabled = false; |
6c55f5ed | 200 | priv->testmode_mem.read_in_progress = false; |
306713fd HK |
201 | } |
202 | ||
6c55f5ed | 203 | static void iwl_mem_cleanup(struct iwl_priv *priv) |
306713fd | 204 | { |
6c55f5ed AB |
205 | if (priv->testmode_mem.read_in_progress) { |
206 | kfree(priv->testmode_mem.buff_addr); | |
207 | priv->testmode_mem.buff_addr = NULL; | |
208 | priv->testmode_mem.buff_size = 0; | |
209 | priv->testmode_mem.num_chunks = 0; | |
210 | priv->testmode_mem.read_in_progress = false; | |
306713fd | 211 | } |
7a4e5281 WYG |
212 | } |
213 | ||
214 | static void iwl_trace_cleanup(struct iwl_priv *priv) | |
215 | { | |
7a4e5281 WYG |
216 | if (priv->testmode_trace.trace_enabled) { |
217 | if (priv->testmode_trace.cpu_addr && | |
218 | priv->testmode_trace.dma_addr) | |
1042db2a | 219 | dma_free_coherent(trans(priv)->dev, |
49b72100 | 220 | priv->testmode_trace.total_size, |
7a4e5281 WYG |
221 | priv->testmode_trace.cpu_addr, |
222 | priv->testmode_trace.dma_addr); | |
223 | priv->testmode_trace.trace_enabled = false; | |
224 | priv->testmode_trace.cpu_addr = NULL; | |
225 | priv->testmode_trace.trace_addr = NULL; | |
226 | priv->testmode_trace.dma_addr = 0; | |
49b72100 WYG |
227 | priv->testmode_trace.buff_size = 0; |
228 | priv->testmode_trace.total_size = 0; | |
7a4e5281 WYG |
229 | } |
230 | } | |
231 | ||
232 | ||
233 | void iwl_testmode_cleanup(struct iwl_priv *priv) | |
234 | { | |
235 | iwl_trace_cleanup(priv); | |
6c55f5ed | 236 | iwl_mem_cleanup(priv); |
4613e72d CK |
237 | } |
238 | ||
cdfef6c2 | 239 | |
4613e72d CK |
240 | /* |
241 | * This function handles the user application commands to the ucode. | |
242 | * | |
243 | * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_CMD_ID and | |
244 | * IWL_TM_ATTR_UCODE_CMD_DATA and calls to the handler to send the | |
245 | * host command to the ucode. | |
246 | * | |
247 | * If any mandatory field is missing, -ENOMSG is replied to the user space | |
cdfef6c2 AB |
248 | * application; otherwise, waits for the host command to be sent and checks |
249 | * the return code. In case or error, it is returned, otherwise a reply is | |
250 | * allocated and the reply RX packet | |
251 | * is returned. | |
4613e72d CK |
252 | * |
253 | * @hw: ieee80211_hw object that represents the device | |
254 | * @tb: gnl message fields from the user space | |
255 | */ | |
256 | static int iwl_testmode_ucode(struct ieee80211_hw *hw, struct nlattr **tb) | |
257 | { | |
258 | struct iwl_priv *priv = hw->priv; | |
259 | struct iwl_host_cmd cmd; | |
cdfef6c2 AB |
260 | struct iwl_rx_packet *pkt; |
261 | struct sk_buff *skb; | |
262 | void *reply_buf; | |
263 | u32 reply_len; | |
264 | int ret; | |
265 | bool cmd_want_skb; | |
4613e72d CK |
266 | |
267 | memset(&cmd, 0, sizeof(struct iwl_host_cmd)); | |
268 | ||
269 | if (!tb[IWL_TM_ATTR_UCODE_CMD_ID] || | |
270 | !tb[IWL_TM_ATTR_UCODE_CMD_DATA]) { | |
2f73d7c2 | 271 | IWL_ERR(priv, "Missing ucode command mandatory fields\n"); |
4613e72d CK |
272 | return -ENOMSG; |
273 | } | |
274 | ||
cdfef6c2 AB |
275 | cmd.flags = CMD_ON_DEMAND | CMD_SYNC; |
276 | cmd_want_skb = nla_get_flag(tb[IWL_TM_ATTR_UCODE_CMD_SKB]); | |
277 | if (cmd_want_skb) | |
278 | cmd.flags |= CMD_WANT_SKB; | |
279 | ||
4613e72d | 280 | cmd.id = nla_get_u8(tb[IWL_TM_ATTR_UCODE_CMD_ID]); |
3fa50738 JB |
281 | cmd.data[0] = nla_data(tb[IWL_TM_ATTR_UCODE_CMD_DATA]); |
282 | cmd.len[0] = nla_len(tb[IWL_TM_ATTR_UCODE_CMD_DATA]); | |
4ce7cc2b | 283 | cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY; |
cdfef6c2 | 284 | IWL_DEBUG_INFO(priv, "testmode ucode command ID 0x%x, flags 0x%x," |
3fa50738 | 285 | " len %d\n", cmd.id, cmd.flags, cmd.len[0]); |
cdfef6c2 AB |
286 | |
287 | ret = iwl_trans_send_cmd(trans(priv), &cmd); | |
288 | if (ret) { | |
289 | IWL_ERR(priv, "Failed to send hcmd\n"); | |
290 | return ret; | |
291 | } | |
292 | if (!cmd_want_skb) | |
293 | return ret; | |
294 | ||
295 | /* Handling return of SKB to the user */ | |
296 | pkt = (struct iwl_rx_packet *)cmd.reply_page; | |
297 | if (!pkt) { | |
298 | IWL_ERR(priv, "HCMD received a null response packet\n"); | |
299 | return ret; | |
300 | } | |
301 | ||
302 | reply_len = le32_to_cpu(pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; | |
303 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, reply_len + 20); | |
304 | reply_buf = kmalloc(reply_len, GFP_KERNEL); | |
305 | if (!skb || !reply_buf) { | |
306 | kfree_skb(skb); | |
307 | kfree(reply_buf); | |
308 | return -ENOMEM; | |
309 | } | |
310 | ||
311 | /* The reply is in a page, that we cannot send to user space. */ | |
312 | memcpy(reply_buf, &(pkt->u), reply_len); | |
313 | iwl_free_pages(priv->shrd, cmd.reply_page); | |
314 | ||
315 | NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, IWL_TM_CMD_DEV2APP_UCODE_RX_PKT); | |
316 | NLA_PUT(skb, IWL_TM_ATTR_UCODE_RX_PKT, reply_len, reply_buf); | |
317 | return cfg80211_testmode_reply(skb); | |
318 | ||
319 | nla_put_failure: | |
320 | IWL_DEBUG_INFO(priv, "Failed creating NL attributes\n"); | |
321 | return -ENOMSG; | |
4613e72d CK |
322 | } |
323 | ||
324 | ||
325 | /* | |
326 | * This function handles the user application commands for register access. | |
327 | * | |
328 | * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the | |
329 | * handlers respectively. | |
330 | * | |
331 | * If it's an unknown commdn ID, -ENOSYS is returned; or -ENOMSG if the | |
332 | * mandatory fields(IWL_TM_ATTR_REG_OFFSET,IWL_TM_ATTR_REG_VALUE32, | |
333 | * IWL_TM_ATTR_REG_VALUE8) are missing; Otherwise 0 is replied indicating | |
334 | * the success of the command execution. | |
335 | * | |
336 | * If IWL_TM_ATTR_COMMAND is IWL_TM_CMD_APP2DEV_REG_READ32, the register read | |
337 | * value is returned with IWL_TM_ATTR_REG_VALUE32. | |
338 | * | |
339 | * @hw: ieee80211_hw object that represents the device | |
340 | * @tb: gnl message fields from the user space | |
341 | */ | |
342 | static int iwl_testmode_reg(struct ieee80211_hw *hw, struct nlattr **tb) | |
343 | { | |
344 | struct iwl_priv *priv = hw->priv; | |
6fe7dd0d | 345 | u32 ofs, val32, cmd; |
4613e72d CK |
346 | u8 val8; |
347 | struct sk_buff *skb; | |
348 | int status = 0; | |
349 | ||
350 | if (!tb[IWL_TM_ATTR_REG_OFFSET]) { | |
2f73d7c2 | 351 | IWL_ERR(priv, "Missing register offset\n"); |
4613e72d CK |
352 | return -ENOMSG; |
353 | } | |
354 | ofs = nla_get_u32(tb[IWL_TM_ATTR_REG_OFFSET]); | |
355 | IWL_INFO(priv, "testmode register access command offset 0x%x\n", ofs); | |
356 | ||
6fe7dd0d AB |
357 | /* Allow access only to FH/CSR/HBUS in direct mode. |
358 | Since we don't have the upper bounds for the CSR and HBUS segments, | |
359 | we will use only the upper bound of FH for sanity check. */ | |
360 | cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]); | |
361 | if ((cmd == IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32 || | |
362 | cmd == IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32 || | |
363 | cmd == IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8) && | |
364 | (ofs >= FH_MEM_UPPER_BOUND)) { | |
2f73d7c2 | 365 | IWL_ERR(priv, "offset out of segment (0x0 - 0x%x)\n", |
6fe7dd0d AB |
366 | FH_MEM_UPPER_BOUND); |
367 | return -EINVAL; | |
368 | } | |
369 | ||
370 | switch (cmd) { | |
72bcacc2 | 371 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: |
1042db2a | 372 | val32 = iwl_read_direct32(trans(priv), ofs); |
4613e72d CK |
373 | IWL_INFO(priv, "32bit value to read 0x%x\n", val32); |
374 | ||
375 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20); | |
376 | if (!skb) { | |
2f73d7c2 | 377 | IWL_ERR(priv, "Memory allocation fail\n"); |
4613e72d CK |
378 | return -ENOMEM; |
379 | } | |
380 | NLA_PUT_U32(skb, IWL_TM_ATTR_REG_VALUE32, val32); | |
381 | status = cfg80211_testmode_reply(skb); | |
382 | if (status < 0) | |
2f73d7c2 | 383 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
4613e72d | 384 | break; |
72bcacc2 | 385 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: |
4613e72d | 386 | if (!tb[IWL_TM_ATTR_REG_VALUE32]) { |
2f73d7c2 | 387 | IWL_ERR(priv, "Missing value to write\n"); |
4613e72d CK |
388 | return -ENOMSG; |
389 | } else { | |
390 | val32 = nla_get_u32(tb[IWL_TM_ATTR_REG_VALUE32]); | |
391 | IWL_INFO(priv, "32bit value to write 0x%x\n", val32); | |
1042db2a | 392 | iwl_write_direct32(trans(priv), ofs, val32); |
4613e72d CK |
393 | } |
394 | break; | |
72bcacc2 | 395 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: |
4613e72d | 396 | if (!tb[IWL_TM_ATTR_REG_VALUE8]) { |
2f73d7c2 | 397 | IWL_ERR(priv, "Missing value to write\n"); |
4613e72d CK |
398 | return -ENOMSG; |
399 | } else { | |
400 | val8 = nla_get_u8(tb[IWL_TM_ATTR_REG_VALUE8]); | |
401 | IWL_INFO(priv, "8bit value to write 0x%x\n", val8); | |
1042db2a | 402 | iwl_write8(trans(priv), ofs, val8); |
4613e72d CK |
403 | } |
404 | break; | |
405 | default: | |
2f73d7c2 | 406 | IWL_ERR(priv, "Unknown testmode register command ID\n"); |
4613e72d CK |
407 | return -ENOSYS; |
408 | } | |
409 | ||
410 | return status; | |
411 | ||
412 | nla_put_failure: | |
413 | kfree_skb(skb); | |
414 | return -EMSGSIZE; | |
415 | } | |
416 | ||
417 | ||
418 | static int iwl_testmode_cfg_init_calib(struct iwl_priv *priv) | |
419 | { | |
420 | struct iwl_notification_wait calib_wait; | |
421 | int ret; | |
422 | ||
dd5fe104 | 423 | iwl_init_notification_wait(priv->shrd, &calib_wait, |
4613e72d CK |
424 | CALIBRATION_COMPLETE_NOTIFICATION, |
425 | NULL, NULL); | |
69a679b0 | 426 | ret = iwl_init_alive_start(trans(priv)); |
4613e72d | 427 | if (ret) { |
2f73d7c2 | 428 | IWL_ERR(priv, "Fail init calibration: %d\n", ret); |
4613e72d CK |
429 | goto cfg_init_calib_error; |
430 | } | |
431 | ||
dd5fe104 | 432 | ret = iwl_wait_notification(priv->shrd, &calib_wait, 2 * HZ); |
4613e72d | 433 | if (ret) |
2f73d7c2 | 434 | IWL_ERR(priv, "Error detecting" |
4613e72d CK |
435 | " CALIBRATION_COMPLETE_NOTIFICATION: %d\n", ret); |
436 | return ret; | |
437 | ||
438 | cfg_init_calib_error: | |
dd5fe104 | 439 | iwl_remove_notification(priv->shrd, &calib_wait); |
4613e72d CK |
440 | return ret; |
441 | } | |
442 | ||
443 | /* | |
444 | * This function handles the user application commands for driver. | |
445 | * | |
446 | * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the | |
447 | * handlers respectively. | |
448 | * | |
449 | * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned | |
450 | * value of the actual command execution is replied to the user application. | |
451 | * | |
452 | * If there's any message responding to the user space, IWL_TM_ATTR_SYNC_RSP | |
453 | * is used for carry the message while IWL_TM_ATTR_COMMAND must set to | |
454 | * IWL_TM_CMD_DEV2APP_SYNC_RSP. | |
455 | * | |
456 | * @hw: ieee80211_hw object that represents the device | |
457 | * @tb: gnl message fields from the user space | |
458 | */ | |
459 | static int iwl_testmode_driver(struct ieee80211_hw *hw, struct nlattr **tb) | |
460 | { | |
461 | struct iwl_priv *priv = hw->priv; | |
69a679b0 | 462 | struct iwl_trans *trans = trans(priv); |
4613e72d CK |
463 | struct sk_buff *skb; |
464 | unsigned char *rsp_data_ptr = NULL; | |
465 | int status = 0, rsp_data_len = 0; | |
aca9b5f3 | 466 | u32 devid, inst_size = 0, data_size = 0; |
4613e72d CK |
467 | |
468 | switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { | |
469 | case IWL_TM_CMD_APP2DEV_GET_DEVICENAME: | |
38622419 DF |
470 | rsp_data_ptr = (unsigned char *)cfg(priv)->name; |
471 | rsp_data_len = strlen(cfg(priv)->name); | |
4613e72d CK |
472 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, |
473 | rsp_data_len + 20); | |
474 | if (!skb) { | |
2f73d7c2 | 475 | IWL_ERR(priv, "Memory allocation fail\n"); |
4613e72d CK |
476 | return -ENOMEM; |
477 | } | |
478 | NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, | |
479 | IWL_TM_CMD_DEV2APP_SYNC_RSP); | |
480 | NLA_PUT(skb, IWL_TM_ATTR_SYNC_RSP, | |
481 | rsp_data_len, rsp_data_ptr); | |
482 | status = cfg80211_testmode_reply(skb); | |
483 | if (status < 0) | |
2f73d7c2 | 484 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
4613e72d CK |
485 | break; |
486 | ||
487 | case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: | |
69a679b0 | 488 | status = iwl_load_ucode_wait_alive(trans, IWL_UCODE_INIT); |
4613e72d | 489 | if (status) |
2f73d7c2 | 490 | IWL_ERR(priv, "Error loading init ucode: %d\n", status); |
4613e72d CK |
491 | break; |
492 | ||
493 | case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: | |
494 | iwl_testmode_cfg_init_calib(priv); | |
69a679b0 | 495 | iwl_trans_stop_device(trans); |
4613e72d CK |
496 | break; |
497 | ||
498 | case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: | |
69a679b0 | 499 | status = iwl_load_ucode_wait_alive(trans, IWL_UCODE_REGULAR); |
4613e72d | 500 | if (status) { |
2f73d7c2 | 501 | IWL_ERR(priv, |
4613e72d CK |
502 | "Error loading runtime ucode: %d\n", status); |
503 | break; | |
504 | } | |
505 | status = iwl_alive_start(priv); | |
506 | if (status) | |
2f73d7c2 | 507 | IWL_ERR(priv, |
4613e72d CK |
508 | "Error starting the device: %d\n", status); |
509 | break; | |
510 | ||
d4af19fe HK |
511 | case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: |
512 | iwl_scan_cancel_timeout(priv, 200); | |
69a679b0 DF |
513 | iwl_trans_stop_device(trans); |
514 | status = iwl_load_ucode_wait_alive(trans, IWL_UCODE_WOWLAN); | |
d4af19fe | 515 | if (status) { |
2f73d7c2 | 516 | IWL_ERR(priv, |
d4af19fe HK |
517 | "Error loading WOWLAN ucode: %d\n", status); |
518 | break; | |
519 | } | |
520 | status = iwl_alive_start(priv); | |
521 | if (status) | |
2f73d7c2 | 522 | IWL_ERR(priv, |
d4af19fe HK |
523 | "Error starting the device: %d\n", status); |
524 | break; | |
525 | ||
4babc358 | 526 | case IWL_TM_CMD_APP2DEV_GET_EEPROM: |
ab36eab2 | 527 | if (priv->shrd->eeprom) { |
4babc358 | 528 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, |
38622419 | 529 | cfg(priv)->base_params->eeprom_size + 20); |
4babc358 | 530 | if (!skb) { |
2f73d7c2 | 531 | IWL_ERR(priv, "Memory allocation fail\n"); |
4babc358 WYG |
532 | return -ENOMEM; |
533 | } | |
534 | NLA_PUT_U32(skb, IWL_TM_ATTR_COMMAND, | |
535 | IWL_TM_CMD_DEV2APP_EEPROM_RSP); | |
536 | NLA_PUT(skb, IWL_TM_ATTR_EEPROM, | |
38622419 | 537 | cfg(priv)->base_params->eeprom_size, |
ab36eab2 | 538 | priv->shrd->eeprom); |
4babc358 WYG |
539 | status = cfg80211_testmode_reply(skb); |
540 | if (status < 0) | |
2f73d7c2 WYG |
541 | IWL_ERR(priv, "Error sending msg : %d\n", |
542 | status); | |
4babc358 WYG |
543 | } else |
544 | return -EFAULT; | |
545 | break; | |
546 | ||
6489854b WYG |
547 | case IWL_TM_CMD_APP2DEV_FIXRATE_REQ: |
548 | if (!tb[IWL_TM_ATTR_FIXRATE]) { | |
2f73d7c2 | 549 | IWL_ERR(priv, "Missing fixrate setting\n"); |
6489854b WYG |
550 | return -ENOMSG; |
551 | } | |
4e308119 | 552 | priv->tm_fixed_rate = nla_get_u32(tb[IWL_TM_ATTR_FIXRATE]); |
6489854b WYG |
553 | break; |
554 | ||
e1a38fe1 HK |
555 | case IWL_TM_CMD_APP2DEV_GET_FW_VERSION: |
556 | IWL_INFO(priv, "uCode version raw: 0x%x\n", priv->ucode_ver); | |
557 | ||
558 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20); | |
559 | if (!skb) { | |
2f73d7c2 | 560 | IWL_ERR(priv, "Memory allocation fail\n"); |
e1a38fe1 HK |
561 | return -ENOMEM; |
562 | } | |
563 | NLA_PUT_U32(skb, IWL_TM_ATTR_FW_VERSION, priv->ucode_ver); | |
564 | status = cfg80211_testmode_reply(skb); | |
565 | if (status < 0) | |
2f73d7c2 | 566 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
e1a38fe1 HK |
567 | break; |
568 | ||
0bec12b8 | 569 | case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID: |
99673ee5 | 570 | devid = trans(priv)->hw_id; |
fb6c1c6c | 571 | IWL_INFO(priv, "hw version: 0x%x\n", devid); |
0bec12b8 HK |
572 | |
573 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20); | |
574 | if (!skb) { | |
2f73d7c2 | 575 | IWL_ERR(priv, "Memory allocation fail\n"); |
0bec12b8 HK |
576 | return -ENOMEM; |
577 | } | |
578 | NLA_PUT_U32(skb, IWL_TM_ATTR_DEVICE_ID, devid); | |
579 | status = cfg80211_testmode_reply(skb); | |
580 | if (status < 0) | |
2f73d7c2 | 581 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
0bec12b8 HK |
582 | break; |
583 | ||
aca9b5f3 KH |
584 | case IWL_TM_CMD_APP2DEV_GET_FW_INFO: |
585 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, 20 + 8); | |
586 | if (!skb) { | |
2f73d7c2 | 587 | IWL_ERR(priv, "Memory allocation fail\n"); |
aca9b5f3 KH |
588 | return -ENOMEM; |
589 | } | |
590 | switch (priv->shrd->ucode_type) { | |
591 | case IWL_UCODE_REGULAR: | |
592 | inst_size = trans(priv)->ucode_rt.code.len; | |
593 | data_size = trans(priv)->ucode_rt.data.len; | |
594 | break; | |
595 | case IWL_UCODE_INIT: | |
596 | inst_size = trans(priv)->ucode_init.code.len; | |
597 | data_size = trans(priv)->ucode_init.data.len; | |
598 | break; | |
599 | case IWL_UCODE_WOWLAN: | |
600 | inst_size = trans(priv)->ucode_wowlan.code.len; | |
601 | data_size = trans(priv)->ucode_wowlan.data.len; | |
602 | break; | |
603 | case IWL_UCODE_NONE: | |
2f73d7c2 | 604 | IWL_ERR(priv, "No uCode has not been loaded\n"); |
aca9b5f3 KH |
605 | break; |
606 | default: | |
2f73d7c2 | 607 | IWL_ERR(priv, "Unsupported uCode type\n"); |
aca9b5f3 KH |
608 | break; |
609 | } | |
610 | NLA_PUT_U32(skb, IWL_TM_ATTR_FW_TYPE, priv->shrd->ucode_type); | |
611 | NLA_PUT_U32(skb, IWL_TM_ATTR_FW_INST_SIZE, inst_size); | |
612 | NLA_PUT_U32(skb, IWL_TM_ATTR_FW_DATA_SIZE, data_size); | |
613 | status = cfg80211_testmode_reply(skb); | |
614 | if (status < 0) | |
2f73d7c2 | 615 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
aca9b5f3 KH |
616 | break; |
617 | ||
4613e72d | 618 | default: |
2f73d7c2 | 619 | IWL_ERR(priv, "Unknown testmode driver command ID\n"); |
4613e72d CK |
620 | return -ENOSYS; |
621 | } | |
622 | return status; | |
623 | ||
624 | nla_put_failure: | |
625 | kfree_skb(skb); | |
626 | return -EMSGSIZE; | |
627 | } | |
628 | ||
7a4e5281 WYG |
629 | |
630 | /* | |
631 | * This function handles the user application commands for uCode trace | |
632 | * | |
633 | * It retrieves command ID carried with IWL_TM_ATTR_COMMAND and calls to the | |
634 | * handlers respectively. | |
635 | * | |
636 | * If it's an unknown commdn ID, -ENOSYS is replied; otherwise, the returned | |
637 | * value of the actual command execution is replied to the user application. | |
638 | * | |
639 | * @hw: ieee80211_hw object that represents the device | |
640 | * @tb: gnl message fields from the user space | |
641 | */ | |
642 | static int iwl_testmode_trace(struct ieee80211_hw *hw, struct nlattr **tb) | |
643 | { | |
644 | struct iwl_priv *priv = hw->priv; | |
645 | struct sk_buff *skb; | |
646 | int status = 0; | |
1042db2a | 647 | struct device *dev = trans(priv)->dev; |
7a4e5281 WYG |
648 | |
649 | switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { | |
650 | case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: | |
651 | if (priv->testmode_trace.trace_enabled) | |
652 | return -EBUSY; | |
653 | ||
49b72100 WYG |
654 | if (!tb[IWL_TM_ATTR_TRACE_SIZE]) |
655 | priv->testmode_trace.buff_size = TRACE_BUFF_SIZE_DEF; | |
656 | else | |
657 | priv->testmode_trace.buff_size = | |
658 | nla_get_u32(tb[IWL_TM_ATTR_TRACE_SIZE]); | |
659 | if (!priv->testmode_trace.buff_size) | |
660 | return -EINVAL; | |
661 | if (priv->testmode_trace.buff_size < TRACE_BUFF_SIZE_MIN || | |
662 | priv->testmode_trace.buff_size > TRACE_BUFF_SIZE_MAX) | |
663 | return -EINVAL; | |
664 | ||
665 | priv->testmode_trace.total_size = | |
666 | priv->testmode_trace.buff_size + TRACE_BUFF_PADD; | |
7a4e5281 WYG |
667 | priv->testmode_trace.cpu_addr = |
668 | dma_alloc_coherent(dev, | |
49b72100 | 669 | priv->testmode_trace.total_size, |
7a4e5281 WYG |
670 | &priv->testmode_trace.dma_addr, |
671 | GFP_KERNEL); | |
672 | if (!priv->testmode_trace.cpu_addr) | |
673 | return -ENOMEM; | |
674 | priv->testmode_trace.trace_enabled = true; | |
675 | priv->testmode_trace.trace_addr = (u8 *)PTR_ALIGN( | |
676 | priv->testmode_trace.cpu_addr, 0x100); | |
677 | memset(priv->testmode_trace.trace_addr, 0x03B, | |
49b72100 | 678 | priv->testmode_trace.buff_size); |
7a4e5281 WYG |
679 | skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy, |
680 | sizeof(priv->testmode_trace.dma_addr) + 20); | |
681 | if (!skb) { | |
2f73d7c2 | 682 | IWL_ERR(priv, "Memory allocation fail\n"); |
7a4e5281 WYG |
683 | iwl_trace_cleanup(priv); |
684 | return -ENOMEM; | |
685 | } | |
686 | NLA_PUT(skb, IWL_TM_ATTR_TRACE_ADDR, | |
687 | sizeof(priv->testmode_trace.dma_addr), | |
688 | (u64 *)&priv->testmode_trace.dma_addr); | |
689 | status = cfg80211_testmode_reply(skb); | |
690 | if (status < 0) { | |
2f73d7c2 | 691 | IWL_ERR(priv, "Error sending msg : %d\n", status); |
7a4e5281 | 692 | } |
eb64dca0 WYG |
693 | priv->testmode_trace.num_chunks = |
694 | DIV_ROUND_UP(priv->testmode_trace.buff_size, | |
e056a653 | 695 | DUMP_CHUNK_SIZE); |
7a4e5281 WYG |
696 | break; |
697 | ||
698 | case IWL_TM_CMD_APP2DEV_END_TRACE: | |
699 | iwl_trace_cleanup(priv); | |
700 | break; | |
7a4e5281 | 701 | default: |
2f73d7c2 | 702 | IWL_ERR(priv, "Unknown testmode mem command ID\n"); |
7a4e5281 WYG |
703 | return -ENOSYS; |
704 | } | |
705 | return status; | |
706 | ||
707 | nla_put_failure: | |
708 | kfree_skb(skb); | |
709 | if (nla_get_u32(tb[IWL_TM_ATTR_COMMAND]) == | |
710 | IWL_TM_CMD_APP2DEV_BEGIN_TRACE) | |
711 | iwl_trace_cleanup(priv); | |
712 | return -EMSGSIZE; | |
713 | } | |
714 | ||
eb64dca0 WYG |
715 | static int iwl_testmode_trace_dump(struct ieee80211_hw *hw, struct nlattr **tb, |
716 | struct sk_buff *skb, | |
717 | struct netlink_callback *cb) | |
718 | { | |
719 | struct iwl_priv *priv = hw->priv; | |
720 | int idx, length; | |
721 | ||
722 | if (priv->testmode_trace.trace_enabled && | |
723 | priv->testmode_trace.trace_addr) { | |
724 | idx = cb->args[4]; | |
725 | if (idx >= priv->testmode_trace.num_chunks) | |
726 | return -ENOENT; | |
e056a653 | 727 | length = DUMP_CHUNK_SIZE; |
eb64dca0 | 728 | if (((idx + 1) == priv->testmode_trace.num_chunks) && |
e056a653 | 729 | (priv->testmode_trace.buff_size % DUMP_CHUNK_SIZE)) |
eb64dca0 | 730 | length = priv->testmode_trace.buff_size % |
e056a653 | 731 | DUMP_CHUNK_SIZE; |
eb64dca0 WYG |
732 | |
733 | NLA_PUT(skb, IWL_TM_ATTR_TRACE_DUMP, length, | |
734 | priv->testmode_trace.trace_addr + | |
e056a653 | 735 | (DUMP_CHUNK_SIZE * idx)); |
eb64dca0 WYG |
736 | idx++; |
737 | cb->args[4] = idx; | |
738 | return 0; | |
739 | } else | |
740 | return -EFAULT; | |
741 | ||
742 | nla_put_failure: | |
743 | return -ENOBUFS; | |
744 | } | |
745 | ||
e98a1939 WYG |
746 | /* |
747 | * This function handles the user application switch ucode ownership. | |
748 | * | |
749 | * It retrieves the mandatory fields IWL_TM_ATTR_UCODE_OWNER and | |
750 | * decide who the current owner of the uCode | |
751 | * | |
752 | * If the current owner is OWNERSHIP_TM, then the only host command | |
753 | * can deliver to uCode is from testmode, all the other host commands | |
754 | * will dropped. | |
755 | * | |
756 | * default driver is the owner of uCode in normal operational mode | |
757 | * | |
758 | * @hw: ieee80211_hw object that represents the device | |
759 | * @tb: gnl message fields from the user space | |
760 | */ | |
761 | static int iwl_testmode_ownership(struct ieee80211_hw *hw, struct nlattr **tb) | |
762 | { | |
763 | struct iwl_priv *priv = hw->priv; | |
764 | u8 owner; | |
765 | ||
766 | if (!tb[IWL_TM_ATTR_UCODE_OWNER]) { | |
2f73d7c2 | 767 | IWL_ERR(priv, "Missing ucode owner\n"); |
e98a1939 WYG |
768 | return -ENOMSG; |
769 | } | |
770 | ||
771 | owner = nla_get_u8(tb[IWL_TM_ATTR_UCODE_OWNER]); | |
772 | if ((owner == IWL_OWNERSHIP_DRIVER) || (owner == IWL_OWNERSHIP_TM)) | |
fd656935 | 773 | priv->shrd->ucode_owner = owner; |
e98a1939 | 774 | else { |
2f73d7c2 | 775 | IWL_ERR(priv, "Invalid owner\n"); |
e98a1939 WYG |
776 | return -EINVAL; |
777 | } | |
778 | return 0; | |
779 | } | |
780 | ||
6c55f5ed AB |
781 | static int iwl_testmode_indirect_read(struct iwl_priv *priv, u32 addr, u32 size) |
782 | { | |
783 | struct iwl_trans *trans = trans(priv); | |
784 | unsigned long flags; | |
785 | int i; | |
786 | ||
787 | if (size & 0x3) | |
788 | return -EINVAL; | |
789 | priv->testmode_mem.buff_size = size; | |
790 | priv->testmode_mem.buff_addr = | |
791 | kmalloc(priv->testmode_mem.buff_size, GFP_KERNEL); | |
792 | if (priv->testmode_mem.buff_addr == NULL) | |
793 | return -ENOMEM; | |
794 | ||
795 | /* Hard-coded periphery absolute address */ | |
796 | if (IWL_TM_ABS_PRPH_START <= addr && | |
797 | addr < IWL_TM_ABS_PRPH_START + PRPH_END) { | |
798 | spin_lock_irqsave(&trans->reg_lock, flags); | |
799 | iwl_grab_nic_access(trans); | |
800 | iwl_write32(trans, HBUS_TARG_PRPH_RADDR, addr); | |
801 | for (i = 0; i < size; i += 4) | |
802 | priv->testmode_mem.buff_addr[i] = | |
803 | iwl_read32(trans, HBUS_TARG_PRPH_RDAT); | |
804 | iwl_release_nic_access(trans); | |
805 | spin_unlock_irqrestore(&trans->reg_lock, flags); | |
806 | } else { /* target memory (SRAM) */ | |
807 | _iwl_read_targ_mem_words(trans, addr, | |
808 | priv->testmode_mem.buff_addr, | |
809 | priv->testmode_mem.buff_size / 4); | |
810 | } | |
811 | ||
812 | priv->testmode_mem.num_chunks = | |
813 | DIV_ROUND_UP(priv->testmode_mem.buff_size, DUMP_CHUNK_SIZE); | |
814 | priv->testmode_mem.read_in_progress = true; | |
815 | return 0; | |
816 | ||
817 | } | |
818 | ||
819 | static int iwl_testmode_indirect_write(struct iwl_priv *priv, u32 addr, | |
820 | u32 size, unsigned char *buf) | |
821 | { | |
822 | struct iwl_trans *trans = trans(priv); | |
823 | u32 val, i; | |
824 | unsigned long flags; | |
825 | ||
826 | if (IWL_TM_ABS_PRPH_START <= addr && | |
827 | addr < IWL_TM_ABS_PRPH_START + PRPH_END) { | |
828 | /* Periphery writes can be 1-3 bytes long, or DWORDs */ | |
829 | if (size < 4) { | |
830 | memcpy(&val, buf, size); | |
831 | spin_lock_irqsave(&trans->reg_lock, flags); | |
832 | iwl_grab_nic_access(trans); | |
833 | iwl_write32(trans, HBUS_TARG_PRPH_WADDR, | |
834 | (addr & 0x0000FFFF) | (size << 24)); | |
835 | iwl_write32(trans, HBUS_TARG_PRPH_WDAT, val); | |
836 | iwl_release_nic_access(trans); | |
837 | /* needed after consecutive writes w/o read */ | |
838 | mmiowb(); | |
839 | spin_unlock_irqrestore(&trans->reg_lock, flags); | |
840 | } else { | |
841 | if (size % 4) | |
842 | return -EINVAL; | |
843 | for (i = 0; i < size; i += 4) | |
844 | iwl_write_prph(trans, addr+i, | |
845 | *(u32 *)buf+i); | |
846 | } | |
847 | } else if (iwlagn_hw_valid_rtc_data_addr(addr) || | |
848 | (IWLAGN_RTC_INST_LOWER_BOUND <= addr && | |
849 | addr < IWLAGN_RTC_INST_UPPER_BOUND)) { | |
850 | _iwl_write_targ_mem_words(trans, addr, buf, size/4); | |
851 | } else | |
852 | return -EINVAL; | |
853 | return 0; | |
854 | } | |
855 | ||
306713fd HK |
856 | /* |
857 | * This function handles the user application commands for SRAM data dump | |
858 | * | |
859 | * It retrieves the mandatory fields IWL_TM_ATTR_SRAM_ADDR and | |
860 | * IWL_TM_ATTR_SRAM_SIZE to decide the memory area for SRAM data reading | |
861 | * | |
862 | * Several error will be retured, -EBUSY if the SRAM data retrieved by | |
863 | * previous command has not been delivered to userspace, or -ENOMSG if | |
864 | * the mandatory fields (IWL_TM_ATTR_SRAM_ADDR,IWL_TM_ATTR_SRAM_SIZE) | |
865 | * are missing, or -ENOMEM if the buffer allocation fails. | |
866 | * | |
867 | * Otherwise 0 is replied indicating the success of the SRAM reading. | |
868 | * | |
869 | * @hw: ieee80211_hw object that represents the device | |
870 | * @tb: gnl message fields from the user space | |
871 | */ | |
6c55f5ed AB |
872 | static int iwl_testmode_indirect_mem(struct ieee80211_hw *hw, |
873 | struct nlattr **tb) | |
306713fd HK |
874 | { |
875 | struct iwl_priv *priv = hw->priv; | |
6c55f5ed AB |
876 | u32 addr, size, cmd; |
877 | unsigned char *buf; | |
306713fd | 878 | |
6c55f5ed AB |
879 | /* Both read and write should be blocked, for atomicity */ |
880 | if (priv->testmode_mem.read_in_progress) | |
306713fd HK |
881 | return -EBUSY; |
882 | ||
6c55f5ed AB |
883 | cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]); |
884 | if (!tb[IWL_TM_ATTR_MEM_ADDR]) { | |
885 | IWL_ERR(priv, "Error finding memory offset address\n"); | |
306713fd HK |
886 | return -ENOMSG; |
887 | } | |
6c55f5ed AB |
888 | addr = nla_get_u32(tb[IWL_TM_ATTR_MEM_ADDR]); |
889 | if (!tb[IWL_TM_ATTR_BUFFER_SIZE]) { | |
890 | IWL_ERR(priv, "Error finding size for memory reading\n"); | |
306713fd HK |
891 | return -ENOMSG; |
892 | } | |
6c55f5ed AB |
893 | size = nla_get_u32(tb[IWL_TM_ATTR_BUFFER_SIZE]); |
894 | ||
895 | if (cmd == IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ) | |
896 | return iwl_testmode_indirect_read(priv, addr, size); | |
897 | else { | |
898 | if (!tb[IWL_TM_ATTR_BUFFER_DUMP]) | |
899 | return -EINVAL; | |
900 | buf = (unsigned char *) nla_data(tb[IWL_TM_ATTR_BUFFER_DUMP]); | |
901 | return iwl_testmode_indirect_write(priv, addr, size, buf); | |
306713fd | 902 | } |
306713fd HK |
903 | } |
904 | ||
6c55f5ed | 905 | static int iwl_testmode_buffer_dump(struct ieee80211_hw *hw, struct nlattr **tb, |
306713fd HK |
906 | struct sk_buff *skb, |
907 | struct netlink_callback *cb) | |
908 | { | |
909 | struct iwl_priv *priv = hw->priv; | |
910 | int idx, length; | |
911 | ||
6c55f5ed | 912 | if (priv->testmode_mem.read_in_progress) { |
306713fd | 913 | idx = cb->args[4]; |
6c55f5ed AB |
914 | if (idx >= priv->testmode_mem.num_chunks) { |
915 | iwl_mem_cleanup(priv); | |
306713fd HK |
916 | return -ENOENT; |
917 | } | |
e056a653 | 918 | length = DUMP_CHUNK_SIZE; |
6c55f5ed AB |
919 | if (((idx + 1) == priv->testmode_mem.num_chunks) && |
920 | (priv->testmode_mem.buff_size % DUMP_CHUNK_SIZE)) | |
921 | length = priv->testmode_mem.buff_size % | |
e056a653 | 922 | DUMP_CHUNK_SIZE; |
306713fd | 923 | |
6c55f5ed AB |
924 | NLA_PUT(skb, IWL_TM_ATTR_BUFFER_DUMP, length, |
925 | priv->testmode_mem.buff_addr + | |
e056a653 | 926 | (DUMP_CHUNK_SIZE * idx)); |
306713fd HK |
927 | idx++; |
928 | cb->args[4] = idx; | |
929 | return 0; | |
930 | } else | |
931 | return -EFAULT; | |
932 | ||
933 | nla_put_failure: | |
934 | return -ENOBUFS; | |
935 | } | |
936 | ||
e98a1939 | 937 | |
4613e72d CK |
938 | /* The testmode gnl message handler that takes the gnl message from the |
939 | * user space and parses it per the policy iwl_testmode_gnl_msg_policy, then | |
940 | * invoke the corresponding handlers. | |
941 | * | |
942 | * This function is invoked when there is user space application sending | |
943 | * gnl message through the testmode tunnel NL80211_CMD_TESTMODE regulated | |
944 | * by nl80211. | |
945 | * | |
946 | * It retrieves the mandatory field, IWL_TM_ATTR_COMMAND, before | |
947 | * dispatching it to the corresponding handler. | |
948 | * | |
949 | * If IWL_TM_ATTR_COMMAND is missing, -ENOMSG is replied to user application; | |
950 | * -ENOSYS is replied to the user application if the command is unknown; | |
951 | * Otherwise, the command is dispatched to the respective handler. | |
952 | * | |
953 | * @hw: ieee80211_hw object that represents the device | |
954 | * @data: pointer to user space message | |
955 | * @len: length in byte of @data | |
956 | */ | |
ade4c649 | 957 | int iwlagn_mac_testmode_cmd(struct ieee80211_hw *hw, void *data, int len) |
4613e72d | 958 | { |
a6779278 | 959 | struct nlattr *tb[IWL_TM_ATTR_MAX]; |
4613e72d CK |
960 | struct iwl_priv *priv = hw->priv; |
961 | int result; | |
962 | ||
963 | result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len, | |
964 | iwl_testmode_gnl_msg_policy); | |
965 | if (result != 0) { | |
2f73d7c2 | 966 | IWL_ERR(priv, "Error parsing the gnl message : %d\n", result); |
4613e72d CK |
967 | return result; |
968 | } | |
969 | ||
970 | /* IWL_TM_ATTR_COMMAND is absolutely mandatory */ | |
971 | if (!tb[IWL_TM_ATTR_COMMAND]) { | |
2f73d7c2 | 972 | IWL_ERR(priv, "Missing testmode command type\n"); |
4613e72d CK |
973 | return -ENOMSG; |
974 | } | |
975 | /* in case multiple accesses to the device happens */ | |
6ac2f839 | 976 | mutex_lock(&priv->shrd->mutex); |
4613e72d CK |
977 | |
978 | switch (nla_get_u32(tb[IWL_TM_ATTR_COMMAND])) { | |
979 | case IWL_TM_CMD_APP2DEV_UCODE: | |
980 | IWL_DEBUG_INFO(priv, "testmode cmd to uCode\n"); | |
981 | result = iwl_testmode_ucode(hw, tb); | |
982 | break; | |
72bcacc2 HK |
983 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_READ32: |
984 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE32: | |
985 | case IWL_TM_CMD_APP2DEV_DIRECT_REG_WRITE8: | |
4613e72d CK |
986 | IWL_DEBUG_INFO(priv, "testmode cmd to register\n"); |
987 | result = iwl_testmode_reg(hw, tb); | |
988 | break; | |
989 | case IWL_TM_CMD_APP2DEV_GET_DEVICENAME: | |
990 | case IWL_TM_CMD_APP2DEV_LOAD_INIT_FW: | |
991 | case IWL_TM_CMD_APP2DEV_CFG_INIT_CALIB: | |
992 | case IWL_TM_CMD_APP2DEV_LOAD_RUNTIME_FW: | |
4babc358 | 993 | case IWL_TM_CMD_APP2DEV_GET_EEPROM: |
6489854b | 994 | case IWL_TM_CMD_APP2DEV_FIXRATE_REQ: |
d4af19fe | 995 | case IWL_TM_CMD_APP2DEV_LOAD_WOWLAN_FW: |
e1a38fe1 | 996 | case IWL_TM_CMD_APP2DEV_GET_FW_VERSION: |
0bec12b8 | 997 | case IWL_TM_CMD_APP2DEV_GET_DEVICE_ID: |
aca9b5f3 | 998 | case IWL_TM_CMD_APP2DEV_GET_FW_INFO: |
4613e72d CK |
999 | IWL_DEBUG_INFO(priv, "testmode cmd to driver\n"); |
1000 | result = iwl_testmode_driver(hw, tb); | |
1001 | break; | |
7a4e5281 WYG |
1002 | |
1003 | case IWL_TM_CMD_APP2DEV_BEGIN_TRACE: | |
1004 | case IWL_TM_CMD_APP2DEV_END_TRACE: | |
1005 | case IWL_TM_CMD_APP2DEV_READ_TRACE: | |
1006 | IWL_DEBUG_INFO(priv, "testmode uCode trace cmd to driver\n"); | |
1007 | result = iwl_testmode_trace(hw, tb); | |
1008 | break; | |
1009 | ||
e98a1939 WYG |
1010 | case IWL_TM_CMD_APP2DEV_OWNERSHIP: |
1011 | IWL_DEBUG_INFO(priv, "testmode change uCode ownership\n"); | |
1012 | result = iwl_testmode_ownership(hw, tb); | |
1013 | break; | |
1014 | ||
6c55f5ed AB |
1015 | case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_READ: |
1016 | case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_WRITE: | |
1017 | IWL_DEBUG_INFO(priv, "testmode indirect memory cmd " | |
1018 | "to driver\n"); | |
1019 | result = iwl_testmode_indirect_mem(hw, tb); | |
306713fd HK |
1020 | break; |
1021 | ||
4613e72d | 1022 | default: |
2f73d7c2 | 1023 | IWL_ERR(priv, "Unknown testmode command\n"); |
4613e72d CK |
1024 | result = -ENOSYS; |
1025 | break; | |
1026 | } | |
1027 | ||
6ac2f839 | 1028 | mutex_unlock(&priv->shrd->mutex); |
4613e72d CK |
1029 | return result; |
1030 | } | |
eb64dca0 | 1031 | |
ade4c649 | 1032 | int iwlagn_mac_testmode_dump(struct ieee80211_hw *hw, struct sk_buff *skb, |
eb64dca0 WYG |
1033 | struct netlink_callback *cb, |
1034 | void *data, int len) | |
1035 | { | |
1036 | struct nlattr *tb[IWL_TM_ATTR_MAX]; | |
1037 | struct iwl_priv *priv = hw->priv; | |
1038 | int result; | |
1039 | u32 cmd; | |
1040 | ||
1041 | if (cb->args[3]) { | |
1042 | /* offset by 1 since commands start at 0 */ | |
1043 | cmd = cb->args[3] - 1; | |
1044 | } else { | |
1045 | result = nla_parse(tb, IWL_TM_ATTR_MAX - 1, data, len, | |
1046 | iwl_testmode_gnl_msg_policy); | |
1047 | if (result) { | |
2f73d7c2 WYG |
1048 | IWL_ERR(priv, |
1049 | "Error parsing the gnl message : %d\n", result); | |
eb64dca0 WYG |
1050 | return result; |
1051 | } | |
1052 | ||
1053 | /* IWL_TM_ATTR_COMMAND is absolutely mandatory */ | |
1054 | if (!tb[IWL_TM_ATTR_COMMAND]) { | |
2f73d7c2 | 1055 | IWL_ERR(priv, "Missing testmode command type\n"); |
eb64dca0 WYG |
1056 | return -ENOMSG; |
1057 | } | |
1058 | cmd = nla_get_u32(tb[IWL_TM_ATTR_COMMAND]); | |
1059 | cb->args[3] = cmd + 1; | |
1060 | } | |
1061 | ||
1062 | /* in case multiple accesses to the device happens */ | |
6ac2f839 | 1063 | mutex_lock(&priv->shrd->mutex); |
eb64dca0 WYG |
1064 | switch (cmd) { |
1065 | case IWL_TM_CMD_APP2DEV_READ_TRACE: | |
1066 | IWL_DEBUG_INFO(priv, "uCode trace cmd to driver\n"); | |
1067 | result = iwl_testmode_trace_dump(hw, tb, skb, cb); | |
1068 | break; | |
6c55f5ed | 1069 | case IWL_TM_CMD_APP2DEV_INDIRECT_BUFFER_DUMP: |
306713fd | 1070 | IWL_DEBUG_INFO(priv, "testmode sram dump cmd to driver\n"); |
6c55f5ed | 1071 | result = iwl_testmode_buffer_dump(hw, tb, skb, cb); |
306713fd | 1072 | break; |
eb64dca0 WYG |
1073 | default: |
1074 | result = -EINVAL; | |
1075 | break; | |
1076 | } | |
1077 | ||
6ac2f839 | 1078 | mutex_unlock(&priv->shrd->mutex); |
eb64dca0 WYG |
1079 | return result; |
1080 | } |