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c85eb619 EG |
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) 2007 - 2012 Intel Corporation. All rights reserved. |
c85eb619 EG |
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) 2005 - 2012 Intel Corporation. All rights reserved. |
c85eb619 EG |
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 | *****************************************************************************/ | |
41c50542 EG |
63 | #ifndef __iwl_trans_h__ |
64 | #define __iwl_trans_h__ | |
253a634c | 65 | |
e679378d | 66 | #include <linux/ieee80211.h> |
930dfd5f | 67 | #include <linux/mm.h> /* for page_address */ |
a72b8b08 EG |
68 | |
69 | #include "iwl-shared.h" | |
69655ebf | 70 | #include "iwl-debug.h" |
87e5666c | 71 | |
60396183 EG |
72 | /** |
73 | * DOC: Transport layer - what is it ? | |
74 | * | |
75 | * The tranport layer is the layer that deals with the HW directly. It provides | |
76 | * an abstraction of the underlying HW to the upper layer. The transport layer | |
77 | * doesn't provide any policy, algorithm or anything of this kind, but only | |
78 | * mechanisms to make the HW do something.It is not completely stateless but | |
79 | * close to it. | |
80 | * We will have an implementation for each different supported bus. | |
81 | */ | |
82 | ||
83 | /** | |
84 | * DOC: Life cycle of the transport layer | |
85 | * | |
86 | * The transport layer has a very precise life cycle. | |
87 | * | |
88 | * 1) A helper function is called during the module initialization and | |
89 | * registers the bus driver's ops with the transport's alloc function. | |
90 | * 2) Bus's probe calls to the transport layer's allocation functions. | |
91 | * Of course this function is bus specific. | |
92 | * 3) This allocation functions will spawn the upper layer which will | |
93 | * register mac80211. | |
94 | * | |
95 | * 4) At some point (i.e. mac80211's start call), the op_mode will call | |
96 | * the following sequence: | |
97 | * start_hw | |
98 | * start_fw | |
99 | * | |
100 | * 5) Then when finished (or reset): | |
101 | * stop_fw (a.k.a. stop device for the moment) | |
102 | * stop_hw | |
103 | * | |
104 | * 6) Eventually, the free function will be called. | |
105 | */ | |
106 | ||
41c50542 | 107 | struct iwl_priv; |
e6bb4c9c | 108 | struct iwl_shared; |
ed277c93 | 109 | struct iwl_op_mode; |
e679378d EG |
110 | struct fw_img; |
111 | struct sk_buff; | |
112 | struct dentry; | |
522376d2 | 113 | |
60396183 EG |
114 | /** |
115 | * DOC: Host command section | |
116 | * | |
117 | * A host command is a commaned issued by the upper layer to the fw. There are | |
118 | * several versions of fw that have several APIs. The transport layer is | |
119 | * completely agnostic to these differences. | |
120 | * The transport does provide helper functionnality (i.e. SYNC / ASYNC mode), | |
121 | */ | |
522376d2 EG |
122 | #define SEQ_TO_SN(seq) (((seq) & IEEE80211_SCTL_SEQ) >> 4) |
123 | #define SN_TO_SEQ(ssn) (((ssn) << 4) & IEEE80211_SCTL_SEQ) | |
124 | #define MAX_SN ((IEEE80211_SCTL_SEQ) >> 4) | |
f8d7c1a1 JB |
125 | #define SEQ_TO_QUEUE(s) (((s) >> 8) & 0x1f) |
126 | #define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8) | |
127 | #define SEQ_TO_INDEX(s) ((s) & 0xff) | |
128 | #define INDEX_TO_SEQ(i) ((i) & 0xff) | |
129 | #define SEQ_RX_FRAME cpu_to_le16(0x8000) | |
130 | ||
131 | /** | |
132 | * struct iwl_cmd_header | |
133 | * | |
134 | * This header format appears in the beginning of each command sent from the | |
135 | * driver, and each response/notification received from uCode. | |
136 | */ | |
137 | struct iwl_cmd_header { | |
138 | u8 cmd; /* Command ID: REPLY_RXON, etc. */ | |
139 | u8 flags; /* 0:5 reserved, 6 abort, 7 internal */ | |
140 | /* | |
141 | * The driver sets up the sequence number to values of its choosing. | |
142 | * uCode does not use this value, but passes it back to the driver | |
143 | * when sending the response to each driver-originated command, so | |
144 | * the driver can match the response to the command. Since the values | |
145 | * don't get used by uCode, the driver may set up an arbitrary format. | |
146 | * | |
147 | * There is one exception: uCode sets bit 15 when it originates | |
148 | * the response/notification, i.e. when the response/notification | |
149 | * is not a direct response to a command sent by the driver. For | |
150 | * example, uCode issues REPLY_RX when it sends a received frame | |
151 | * to the driver; it is not a direct response to any driver command. | |
152 | * | |
153 | * The Linux driver uses the following format: | |
154 | * | |
155 | * 0:7 tfd index - position within TX queue | |
156 | * 8:12 TX queue id | |
157 | * 13:14 reserved | |
158 | * 15 unsolicited RX or uCode-originated notification | |
159 | */ | |
160 | __le16 sequence; | |
161 | } __packed; | |
162 | ||
163 | ||
164 | #define FH_RSCSR_FRAME_SIZE_MSK 0x00003FFF /* bits 0-13 */ | |
165 | ||
166 | struct iwl_rx_packet { | |
167 | /* | |
168 | * The first 4 bytes of the RX frame header contain both the RX frame | |
169 | * size and some flags. | |
170 | * Bit fields: | |
171 | * 31: flag flush RB request | |
172 | * 30: flag ignore TC (terminal counter) request | |
173 | * 29: flag fast IRQ request | |
174 | * 28-14: Reserved | |
175 | * 13-00: RX frame size | |
176 | */ | |
177 | __le32 len_n_flags; | |
178 | struct iwl_cmd_header hdr; | |
179 | u8 data[]; | |
180 | } __packed; | |
522376d2 | 181 | |
60396183 EG |
182 | /** |
183 | * enum CMD_MODE - how to send the host commands ? | |
184 | * | |
185 | * @CMD_SYNC: The caller will be stalled until the fw responds to the command | |
186 | * @CMD_ASYNC: Return right away and don't want for the response | |
187 | * @CMD_WANT_SKB: valid only with CMD_SYNC. The caller needs the buffer of the | |
188 | * response. | |
189 | * @CMD_ON_DEMAND: This command is sent by the test mode pipe. | |
190 | */ | |
191 | enum CMD_MODE { | |
522376d2 EG |
192 | CMD_SYNC = 0, |
193 | CMD_ASYNC = BIT(0), | |
194 | CMD_WANT_SKB = BIT(1), | |
195 | CMD_ON_DEMAND = BIT(2), | |
196 | }; | |
197 | ||
198 | #define DEF_CMD_PAYLOAD_SIZE 320 | |
199 | ||
200 | /** | |
201 | * struct iwl_device_cmd | |
202 | * | |
203 | * For allocation of the command and tx queues, this establishes the overall | |
204 | * size of the largest command we send to uCode, except for commands that | |
205 | * aren't fully copied and use other TFD space. | |
206 | */ | |
207 | struct iwl_device_cmd { | |
208 | struct iwl_cmd_header hdr; /* uCode API */ | |
132f98c2 | 209 | u8 payload[DEF_CMD_PAYLOAD_SIZE]; |
522376d2 EG |
210 | } __packed; |
211 | ||
212 | #define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd)) | |
213 | ||
214 | #define IWL_MAX_CMD_TFDS 2 | |
215 | ||
60396183 EG |
216 | /** |
217 | * struct iwl_hcmd_dataflag - flag for each one of the chunks of the command | |
218 | * | |
219 | * IWL_HCMD_DFL_NOCOPY: By default, the command is copied to the host command's | |
220 | * ring. The transport layer doesn't map the command's buffer to DMA, but | |
221 | * rather copies it to an previously allocated DMA buffer. This flag tells | |
222 | * the transport layer not to copy the command, but to map the existing | |
223 | * buffer. This can save memcpy and is worth with very big comamnds. | |
224 | */ | |
522376d2 EG |
225 | enum iwl_hcmd_dataflag { |
226 | IWL_HCMD_DFL_NOCOPY = BIT(0), | |
227 | }; | |
228 | ||
229 | /** | |
230 | * struct iwl_host_cmd - Host command to the uCode | |
60396183 | 231 | * |
522376d2 | 232 | * @data: array of chunks that composes the data of the host command |
65b94a4a JB |
233 | * @resp_pkt: response packet, if %CMD_WANT_SKB was set |
234 | * @_rx_page_order: (internally used to free response packet) | |
235 | * @_rx_page_addr: (internally used to free response packet) | |
247c61d6 EG |
236 | * @handler_status: return value of the handler of the command |
237 | * (put in setup_rx_handlers) - valid for SYNC mode only | |
60396183 | 238 | * @flags: can be CMD_* |
522376d2 | 239 | * @len: array of the lenths of the chunks in data |
60396183 | 240 | * @dataflags: IWL_HCMD_DFL_* |
522376d2 EG |
241 | * @id: id of the host command |
242 | */ | |
243 | struct iwl_host_cmd { | |
244 | const void *data[IWL_MAX_CMD_TFDS]; | |
65b94a4a JB |
245 | struct iwl_rx_packet *resp_pkt; |
246 | unsigned long _rx_page_addr; | |
247 | u32 _rx_page_order; | |
247c61d6 EG |
248 | int handler_status; |
249 | ||
522376d2 EG |
250 | u32 flags; |
251 | u16 len[IWL_MAX_CMD_TFDS]; | |
252 | u8 dataflags[IWL_MAX_CMD_TFDS]; | |
253 | u8 id; | |
254 | }; | |
41c50542 | 255 | |
65b94a4a JB |
256 | static inline void iwl_free_resp(struct iwl_host_cmd *cmd) |
257 | { | |
258 | free_pages(cmd->_rx_page_addr, cmd->_rx_page_order); | |
259 | } | |
260 | ||
930dfd5f JB |
261 | struct iwl_rx_cmd_buffer { |
262 | struct page *_page; | |
263 | }; | |
264 | ||
265 | static inline void *rxb_addr(struct iwl_rx_cmd_buffer *r) | |
266 | { | |
267 | return page_address(r->_page); | |
268 | } | |
269 | ||
270 | static inline struct page *rxb_steal_page(struct iwl_rx_cmd_buffer *r) | |
271 | { | |
272 | struct page *p = r->_page; | |
273 | r->_page = NULL; | |
274 | return p; | |
275 | } | |
276 | ||
d663ee73 JB |
277 | #define MAX_NO_RECLAIM_CMDS 6 |
278 | ||
92d743ae MV |
279 | /** |
280 | * struct iwl_trans_config - transport configuration | |
281 | * | |
282 | * @op_mode: pointer to the upper layer. | |
283 | * Must be set before any other call. | |
c6f600fc MV |
284 | * @cmd_queue: the index of the command queue. |
285 | * Must be set before start_fw. | |
d663ee73 JB |
286 | * @no_reclaim_cmds: Some devices erroneously don't set the |
287 | * SEQ_RX_FRAME bit on some notifications, this is the | |
288 | * list of such notifications to filter. Max length is | |
289 | * %MAX_NO_RECLAIM_CMDS. | |
290 | * @n_no_reclaim_cmds: # of commands in list | |
92d743ae MV |
291 | */ |
292 | struct iwl_trans_config { | |
293 | struct iwl_op_mode *op_mode; | |
c6f600fc | 294 | u8 cmd_queue; |
d663ee73 JB |
295 | const u8 *no_reclaim_cmds; |
296 | int n_no_reclaim_cmds; | |
92d743ae MV |
297 | }; |
298 | ||
41c50542 EG |
299 | /** |
300 | * struct iwl_trans_ops - transport specific operations | |
60396183 EG |
301 | * |
302 | * All the handlers MUST be implemented | |
303 | * | |
57a1dc89 | 304 | * @start_hw: starts the HW- from that point on, the HW can send interrupts |
60396183 | 305 | * May sleep |
cc56feb2 EG |
306 | * @stop_hw: stops the HW- from that point on, the HW will be in low power but |
307 | * will still issue interrupt if the HW RF kill is triggered. | |
60396183 | 308 | * May sleep |
cf614297 | 309 | * @start_fw: allocates and inits all the resources for the transport |
60396183 EG |
310 | * layer. Also kick a fw image. |
311 | * May sleep | |
ed6a3803 | 312 | * @fw_alive: called when the fw sends alive notification |
60396183 | 313 | * May sleep |
41c50542 | 314 | * @stop_device:stops the whole device (embedded CPU put to reset) |
60396183 | 315 | * May sleep |
2dd4f9f7 JB |
316 | * @wowlan_suspend: put the device into the correct mode for WoWLAN during |
317 | * suspend. This is optional, if not implemented WoWLAN will not be | |
318 | * supported. This callback may sleep. | |
41c50542 | 319 | * @send_cmd:send a host command |
60396183 | 320 | * May sleep only if CMD_SYNC is set |
41c50542 | 321 | * @tx: send an skb |
60396183 | 322 | * Must be atomic |
a0eaad71 | 323 | * @reclaim: free packet until ssn. Returns a list of freed packets. |
60396183 | 324 | * Must be atomic |
288712a6 | 325 | * @tx_agg_alloc: allocate resources for a TX BA session |
c977a33d | 326 | * Must be atomic |
c91bd124 | 327 | * @tx_agg_setup: setup a tx queue for AMPDU - will be called once the HW is |
60396183 EG |
328 | * ready and a successful ADDBA response has been received. |
329 | * May sleep | |
7f01d567 | 330 | * @tx_agg_disable: de-configure a Tx queue to send AMPDUs |
b0b46192 | 331 | * Must be atomic |
41c50542 | 332 | * @free: release all the ressource for the transport layer itself such as |
60396183 EG |
333 | * irq, tasklet etc... From this point on, the device may not issue |
334 | * any interrupt (incl. RFKILL). | |
335 | * May sleep | |
f22be624 | 336 | * @check_stuck_queue: check if a specific queue is stuck |
5f178cd2 | 337 | * @wait_tx_queue_empty: wait until all tx queues are empty |
60396183 | 338 | * May sleep |
87e5666c EG |
339 | * @dbgfs_register: add the dbgfs files under this directory. Files will be |
340 | * automatically deleted. | |
57210f7c EG |
341 | * @suspend: stop the device unless WoWLAN is configured |
342 | * @resume: resume activity of the device | |
03905495 EG |
343 | * @write8: write a u8 to a register at offset ofs from the BAR |
344 | * @write32: write a u32 to a register at offset ofs from the BAR | |
345 | * @read32: read a u32 register at offset ofs from the BAR | |
c6f600fc | 346 | * @configure: configure parameters required by the transport layer from |
3dc420be EG |
347 | * the op_mode. May be called several times before start_fw, can't be |
348 | * called after that. | |
41c50542 EG |
349 | */ |
350 | struct iwl_trans_ops { | |
351 | ||
57a1dc89 | 352 | int (*start_hw)(struct iwl_trans *iwl_trans); |
cc56feb2 | 353 | void (*stop_hw)(struct iwl_trans *iwl_trans); |
0692fe41 | 354 | int (*start_fw)(struct iwl_trans *trans, const struct fw_img *fw); |
ed6a3803 | 355 | void (*fw_alive)(struct iwl_trans *trans); |
6d8f6eeb | 356 | void (*stop_device)(struct iwl_trans *trans); |
41c50542 | 357 | |
2dd4f9f7 JB |
358 | void (*wowlan_suspend)(struct iwl_trans *trans); |
359 | ||
6d8f6eeb | 360 | int (*send_cmd)(struct iwl_trans *trans, struct iwl_host_cmd *cmd); |
41c50542 | 361 | |
e13c0c59 | 362 | int (*tx)(struct iwl_trans *trans, struct sk_buff *skb, |
14991a9d | 363 | struct iwl_device_cmd *dev_cmd, enum iwl_rxon_context_id ctx, |
34b5321e | 364 | u8 sta_id, u8 tid); |
76bc10fc | 365 | int (*reclaim)(struct iwl_trans *trans, int sta_id, int tid, |
e755f882 | 366 | int txq_id, int ssn, struct sk_buff_head *skbs); |
41c50542 | 367 | |
7f01d567 | 368 | int (*tx_agg_disable)(struct iwl_trans *trans, |
bc237730 | 369 | int sta_id, int tid); |
288712a6 | 370 | int (*tx_agg_alloc)(struct iwl_trans *trans, |
3c69b595 | 371 | int sta_id, int tid); |
c91bd124 EG |
372 | void (*tx_agg_setup)(struct iwl_trans *trans, |
373 | enum iwl_rxon_context_id ctx, int sta_id, int tid, | |
822e8b2a | 374 | int frame_limit, u16 ssn); |
41c50542 | 375 | |
6d8f6eeb | 376 | void (*free)(struct iwl_trans *trans); |
87e5666c EG |
377 | |
378 | int (*dbgfs_register)(struct iwl_trans *trans, struct dentry* dir); | |
f22be624 | 379 | int (*check_stuck_queue)(struct iwl_trans *trans, int q); |
5f178cd2 | 380 | int (*wait_tx_queue_empty)(struct iwl_trans *trans); |
c01a4047 | 381 | #ifdef CONFIG_PM_SLEEP |
57210f7c EG |
382 | int (*suspend)(struct iwl_trans *trans); |
383 | int (*resume)(struct iwl_trans *trans); | |
c01a4047 | 384 | #endif |
03905495 EG |
385 | void (*write8)(struct iwl_trans *trans, u32 ofs, u8 val); |
386 | void (*write32)(struct iwl_trans *trans, u32 ofs, u32 val); | |
387 | u32 (*read32)(struct iwl_trans *trans, u32 ofs); | |
c6f600fc MV |
388 | void (*configure)(struct iwl_trans *trans, |
389 | const struct iwl_trans_config *trans_cfg); | |
41c50542 EG |
390 | }; |
391 | ||
69655ebf EG |
392 | /** |
393 | * enum iwl_trans_state - state of the transport layer | |
394 | * | |
395 | * @IWL_TRANS_NO_FW: no fw has sent an alive response | |
396 | * @IWL_TRANS_FW_ALIVE: a fw has sent an alive response | |
397 | */ | |
398 | enum iwl_trans_state { | |
399 | IWL_TRANS_NO_FW = 0, | |
400 | IWL_TRANS_FW_ALIVE = 1, | |
401 | }; | |
402 | ||
6fbfae8e EG |
403 | /** |
404 | * struct iwl_trans - transport common data | |
60396183 | 405 | * |
6fbfae8e | 406 | * @ops - pointer to iwl_trans_ops |
ed277c93 | 407 | * @op_mode - pointer to the op_mode |
6fbfae8e | 408 | * @shrd - pointer to iwl_shared which holds shared data from the upper layer |
1042db2a | 409 | * @reg_lock - protect hw register access |
a42a1844 | 410 | * @dev - pointer to struct device * that represents the device |
99673ee5 | 411 | * @hw_id: a u32 with the ID of the device / subdevice. |
60396183 | 412 | * Set during transport allocation. |
9ca85961 | 413 | * @hw_id_str: a string with info about HW ID. Set during transport allocation. |
45c30dba | 414 | * @nvm_device_type: indicates OTP or eeprom |
f6d0e9be | 415 | * @pm_support: set to true in start_hw if link pm is supported |
6fbfae8e | 416 | */ |
41c50542 EG |
417 | struct iwl_trans { |
418 | const struct iwl_trans_ops *ops; | |
ed277c93 | 419 | struct iwl_op_mode *op_mode; |
e6bb4c9c | 420 | struct iwl_shared *shrd; |
69655ebf | 421 | enum iwl_trans_state state; |
1042db2a | 422 | spinlock_t reg_lock; |
e6bb4c9c | 423 | |
a42a1844 | 424 | struct device *dev; |
08079a49 | 425 | u32 hw_rev; |
99673ee5 | 426 | u32 hw_id; |
9ca85961 | 427 | char hw_id_str[52]; |
a42a1844 | 428 | |
97b52cfd | 429 | int nvm_device_type; |
f6d0e9be | 430 | bool pm_support; |
97b52cfd | 431 | |
e6bb4c9c EG |
432 | /* pointer to trans specific struct */ |
433 | /*Ensure that this pointer will always be aligned to sizeof pointer */ | |
cbe6ab4e | 434 | char trans_specific[0] __aligned(sizeof(void *)); |
41c50542 EG |
435 | }; |
436 | ||
ed277c93 | 437 | static inline void iwl_trans_configure(struct iwl_trans *trans, |
92d743ae | 438 | const struct iwl_trans_config *trans_cfg) |
ed277c93 EG |
439 | { |
440 | /* | |
441 | * only set the op_mode for the moment. Later on, this function will do | |
442 | * more | |
443 | */ | |
92d743ae | 444 | trans->op_mode = trans_cfg->op_mode; |
c6f600fc MV |
445 | |
446 | trans->ops->configure(trans, trans_cfg); | |
ed277c93 EG |
447 | } |
448 | ||
57a1dc89 | 449 | static inline int iwl_trans_start_hw(struct iwl_trans *trans) |
e6bb4c9c | 450 | { |
60396183 EG |
451 | might_sleep(); |
452 | ||
57a1dc89 | 453 | return trans->ops->start_hw(trans); |
e6bb4c9c EG |
454 | } |
455 | ||
cc56feb2 EG |
456 | static inline void iwl_trans_stop_hw(struct iwl_trans *trans) |
457 | { | |
60396183 EG |
458 | might_sleep(); |
459 | ||
cc56feb2 | 460 | trans->ops->stop_hw(trans); |
69655ebf EG |
461 | |
462 | trans->state = IWL_TRANS_NO_FW; | |
cc56feb2 EG |
463 | } |
464 | ||
ed6a3803 EG |
465 | static inline void iwl_trans_fw_alive(struct iwl_trans *trans) |
466 | { | |
60396183 EG |
467 | might_sleep(); |
468 | ||
ed6a3803 | 469 | trans->ops->fw_alive(trans); |
69655ebf EG |
470 | |
471 | trans->state = IWL_TRANS_FW_ALIVE; | |
ed6a3803 EG |
472 | } |
473 | ||
0692fe41 JB |
474 | static inline int iwl_trans_start_fw(struct iwl_trans *trans, |
475 | const struct fw_img *fw) | |
bdfbf092 | 476 | { |
cf614297 EG |
477 | might_sleep(); |
478 | ||
479 | return trans->ops->start_fw(trans, fw); | |
bdfbf092 EG |
480 | } |
481 | ||
e6bb4c9c | 482 | static inline void iwl_trans_stop_device(struct iwl_trans *trans) |
bdfbf092 | 483 | { |
60396183 EG |
484 | might_sleep(); |
485 | ||
6d8f6eeb | 486 | trans->ops->stop_device(trans); |
69655ebf EG |
487 | |
488 | trans->state = IWL_TRANS_NO_FW; | |
bdfbf092 EG |
489 | } |
490 | ||
2dd4f9f7 JB |
491 | static inline void iwl_trans_wowlan_suspend(struct iwl_trans *trans) |
492 | { | |
493 | might_sleep(); | |
494 | trans->ops->wowlan_suspend(trans); | |
495 | } | |
496 | ||
e6bb4c9c | 497 | static inline int iwl_trans_send_cmd(struct iwl_trans *trans, |
bdfbf092 EG |
498 | struct iwl_host_cmd *cmd) |
499 | { | |
f0d120af JB |
500 | WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, |
501 | "%s bad state = %d", __func__, trans->state); | |
69655ebf | 502 | |
6d8f6eeb | 503 | return trans->ops->send_cmd(trans, cmd); |
bdfbf092 EG |
504 | } |
505 | ||
e6bb4c9c | 506 | static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb, |
14991a9d | 507 | struct iwl_device_cmd *dev_cmd, enum iwl_rxon_context_id ctx, |
34b5321e | 508 | u8 sta_id, u8 tid) |
47c1b496 | 509 | { |
69655ebf EG |
510 | if (trans->state != IWL_TRANS_FW_ALIVE) |
511 | IWL_ERR(trans, "%s bad state = %d", __func__, trans->state); | |
512 | ||
34b5321e | 513 | return trans->ops->tx(trans, skb, dev_cmd, ctx, sta_id, tid); |
47c1b496 EG |
514 | } |
515 | ||
76bc10fc | 516 | static inline int iwl_trans_reclaim(struct iwl_trans *trans, int sta_id, |
e755f882 | 517 | int tid, int txq_id, int ssn, |
a0eaad71 EG |
518 | struct sk_buff_head *skbs) |
519 | { | |
f0d120af JB |
520 | WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, |
521 | "%s bad state = %d", __func__, trans->state); | |
69655ebf | 522 | |
e755f882 | 523 | return trans->ops->reclaim(trans, sta_id, tid, txq_id, ssn, skbs); |
a0eaad71 EG |
524 | } |
525 | ||
7f01d567 | 526 | static inline int iwl_trans_tx_agg_disable(struct iwl_trans *trans, |
7f01d567 | 527 | int sta_id, int tid) |
48d42c42 | 528 | { |
f0d120af JB |
529 | WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, |
530 | "%s bad state = %d", __func__, trans->state); | |
69655ebf | 531 | |
bc237730 | 532 | return trans->ops->tx_agg_disable(trans, sta_id, tid); |
48d42c42 EG |
533 | } |
534 | ||
288712a6 | 535 | static inline int iwl_trans_tx_agg_alloc(struct iwl_trans *trans, |
3c69b595 | 536 | int sta_id, int tid) |
288712a6 | 537 | { |
f0d120af JB |
538 | WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, |
539 | "%s bad state = %d", __func__, trans->state); | |
69655ebf | 540 | |
3c69b595 | 541 | return trans->ops->tx_agg_alloc(trans, sta_id, tid); |
288712a6 EG |
542 | } |
543 | ||
544 | ||
c91bd124 | 545 | static inline void iwl_trans_tx_agg_setup(struct iwl_trans *trans, |
ba562f71 EG |
546 | enum iwl_rxon_context_id ctx, |
547 | int sta_id, int tid, | |
822e8b2a | 548 | int frame_limit, u16 ssn) |
48d42c42 | 549 | { |
60396183 EG |
550 | might_sleep(); |
551 | ||
f0d120af JB |
552 | WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, |
553 | "%s bad state = %d", __func__, trans->state); | |
69655ebf | 554 | |
822e8b2a | 555 | trans->ops->tx_agg_setup(trans, ctx, sta_id, tid, frame_limit, ssn); |
48d42c42 EG |
556 | } |
557 | ||
e6bb4c9c | 558 | static inline void iwl_trans_free(struct iwl_trans *trans) |
34c1b7ba | 559 | { |
6d8f6eeb | 560 | trans->ops->free(trans); |
34c1b7ba EG |
561 | } |
562 | ||
5f178cd2 EG |
563 | static inline int iwl_trans_wait_tx_queue_empty(struct iwl_trans *trans) |
564 | { | |
f0d120af JB |
565 | WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, |
566 | "%s bad state = %d", __func__, trans->state); | |
69655ebf | 567 | |
5f178cd2 EG |
568 | return trans->ops->wait_tx_queue_empty(trans); |
569 | } | |
570 | ||
f22be624 EG |
571 | static inline int iwl_trans_check_stuck_queue(struct iwl_trans *trans, int q) |
572 | { | |
f0d120af JB |
573 | WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE, |
574 | "%s bad state = %d", __func__, trans->state); | |
69655ebf | 575 | |
f22be624 EG |
576 | return trans->ops->check_stuck_queue(trans, q); |
577 | } | |
87e5666c EG |
578 | static inline int iwl_trans_dbgfs_register(struct iwl_trans *trans, |
579 | struct dentry *dir) | |
580 | { | |
581 | return trans->ops->dbgfs_register(trans, dir); | |
582 | } | |
583 | ||
c01a4047 | 584 | #ifdef CONFIG_PM_SLEEP |
57210f7c EG |
585 | static inline int iwl_trans_suspend(struct iwl_trans *trans) |
586 | { | |
587 | return trans->ops->suspend(trans); | |
588 | } | |
589 | ||
590 | static inline int iwl_trans_resume(struct iwl_trans *trans) | |
591 | { | |
592 | return trans->ops->resume(trans); | |
593 | } | |
c01a4047 | 594 | #endif |
57210f7c | 595 | |
03905495 EG |
596 | static inline void iwl_trans_write8(struct iwl_trans *trans, u32 ofs, u8 val) |
597 | { | |
598 | trans->ops->write8(trans, ofs, val); | |
599 | } | |
600 | ||
601 | static inline void iwl_trans_write32(struct iwl_trans *trans, u32 ofs, u32 val) | |
602 | { | |
603 | trans->ops->write32(trans, ofs, val); | |
604 | } | |
605 | ||
606 | static inline u32 iwl_trans_read32(struct iwl_trans *trans, u32 ofs) | |
607 | { | |
608 | return trans->ops->read32(trans, ofs); | |
609 | } | |
610 | ||
b52e7ea1 EG |
611 | /***************************************************** |
612 | * Transport layers implementations + their allocation function | |
613 | ******************************************************/ | |
614 | struct pci_dev; | |
615 | struct pci_device_id; | |
616 | extern const struct iwl_trans_ops trans_ops_pcie; | |
617 | struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd, | |
618 | struct pci_dev *pdev, | |
619 | const struct pci_device_id *ent); | |
36a79223 EG |
620 | int __must_check iwl_pci_register_driver(void); |
621 | void iwl_pci_unregister_driver(void); | |
b52e7ea1 EG |
622 | |
623 | extern const struct iwl_trans_ops trans_ops_idi; | |
624 | struct iwl_trans *iwl_trans_idi_alloc(struct iwl_shared *shrd, | |
625 | void *pdev_void, | |
626 | const void *ent_void); | |
41c50542 | 627 | #endif /* __iwl_trans_h__ */ |