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1802d0be | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
0afd7ad9 | 2 | /* |
3 | * IEEE802.15.4-2003 specification | |
4 | * | |
5 | * Copyright (C) 2007-2012 Siemens AG | |
0afd7ad9 | 6 | */ |
7 | #ifndef NET_MAC802154_H | |
8 | #define NET_MAC802154_H | |
9 | ||
f1608920 | 10 | #include <asm/unaligned.h> |
0afd7ad9 | 11 | #include <net/af_ieee802154.h> |
239a84a9 | 12 | #include <linux/ieee802154.h> |
94b4f6c2 | 13 | #include <linux/skbuff.h> |
0afd7ad9 | 14 | |
7fe9a388 AA |
15 | #include <net/cfg802154.h> |
16 | ||
6b70a43c AA |
17 | /** |
18 | * enum ieee802154_hw_addr_filt_flags - hardware address filtering flags | |
19 | * | |
20 | * The following flags are used to indicate changed address settings from | |
0afd7ad9 | 21 | * the stack to the hardware. |
6b70a43c AA |
22 | * |
23 | * @IEEE802154_AFILT_SADDR_CHANGED: Indicates that the short address will be | |
24 | * change. | |
25 | * | |
26 | * @IEEE802154_AFILT_IEEEADDR_CHANGED: Indicates that the extended address | |
27 | * will be change. | |
28 | * | |
29 | * @IEEE802154_AFILT_PANID_CHANGED: Indicates that the pan id will be change. | |
30 | * | |
31 | * @IEEE802154_AFILT_PANC_CHANGED: Indicates that the address filter will | |
32 | * do frame address filtering as a pan coordinator. | |
0afd7ad9 | 33 | */ |
6b70a43c | 34 | enum ieee802154_hw_addr_filt_flags { |
70f36507 AA |
35 | IEEE802154_AFILT_SADDR_CHANGED = BIT(0), |
36 | IEEE802154_AFILT_IEEEADDR_CHANGED = BIT(1), | |
37 | IEEE802154_AFILT_PANID_CHANGED = BIT(2), | |
38 | IEEE802154_AFILT_PANC_CHANGED = BIT(3), | |
6b70a43c | 39 | }; |
0afd7ad9 | 40 | |
a0825b03 AA |
41 | /** |
42 | * struct ieee802154_hw_addr_filt - hardware address filtering settings | |
43 | * | |
44 | * @pan_id: pan_id which should be set to the hardware address filter. | |
45 | * | |
46 | * @short_addr: short_addr which should be set to the hardware address filter. | |
47 | * | |
48 | * @ieee_addr: extended address which should be set to the hardware address | |
49 | * filter. | |
50 | * | |
51 | * @pan_coord: boolean if hardware filtering should be operate as coordinator. | |
52 | */ | |
0afd7ad9 | 53 | struct ieee802154_hw_addr_filt { |
a0825b03 | 54 | __le16 pan_id; |
0afd7ad9 | 55 | __le16 short_addr; |
b70ab2e8 | 56 | __le64 ieee_addr; |
623c1234 | 57 | bool pan_coord; |
0afd7ad9 | 58 | }; |
59 | ||
a0825b03 AA |
60 | /** |
61 | * struct ieee802154_hw - ieee802154 hardware | |
62 | * | |
63 | * @extra_tx_headroom: headroom to reserve in each transmit skb for use by the | |
64 | * driver (e.g. for transmit headers.) | |
65 | * | |
66 | * @flags: hardware flags, see &enum ieee802154_hw_flags | |
67 | * | |
68 | * @parent: parent device of the hardware. | |
69 | * | |
70 | * @priv: pointer to private area that was allocated for driver use along with | |
71 | * this structure. | |
72 | * | |
73 | * @phy: This points to the &struct wpan_phy allocated for this 802.15.4 PHY. | |
74 | */ | |
5a504397 | 75 | struct ieee802154_hw { |
0afd7ad9 | 76 | /* filled by the driver */ |
77 | int extra_tx_headroom; | |
78 | u32 flags; | |
79 | struct device *parent; | |
af69a345 | 80 | void *priv; |
0afd7ad9 | 81 | |
82 | /* filled by mac802154 core */ | |
0afd7ad9 | 83 | struct wpan_phy *phy; |
84 | }; | |
85 | ||
bcbfd207 AA |
86 | /** |
87 | * enum ieee802154_hw_flags - hardware flags | |
0afd7ad9 | 88 | * |
bcbfd207 | 89 | * These flags are used to indicate hardware capabilities to |
0afd7ad9 | 90 | * the stack. Generally, flags here should have their meaning |
91 | * done in a way that the simplest hardware doesn't need setting | |
92 | * any particular flags. There are some exceptions to this rule, | |
93 | * however, so you are advised to review these flags carefully. | |
bcbfd207 AA |
94 | * |
95 | * @IEEE802154_HW_TX_OMIT_CKSUM: Indicates that xmitter will add FCS on it's | |
96 | * own. | |
97 | * | |
98 | * @IEEE802154_HW_LBT: Indicates that transceiver will support listen before | |
99 | * transmit. | |
100 | * | |
101 | * @IEEE802154_HW_CSMA_PARAMS: Indicates that transceiver will support csma | |
102 | * parameters (max_be, min_be, backoff exponents). | |
103 | * | |
104 | * @IEEE802154_HW_FRAME_RETRIES: Indicates that transceiver will support ARET | |
105 | * frame retries setting. | |
106 | * | |
107 | * @IEEE802154_HW_AFILT: Indicates that transceiver will support hardware | |
108 | * address filter setting. | |
109 | * | |
110 | * @IEEE802154_HW_PROMISCUOUS: Indicates that transceiver will support | |
111 | * promiscuous mode setting. | |
112 | * | |
113 | * @IEEE802154_HW_RX_OMIT_CKSUM: Indicates that receiver omits FCS. | |
114 | * | |
115 | * @IEEE802154_HW_RX_DROP_BAD_CKSUM: Indicates that receiver will not filter | |
116 | * frames with bad checksum. | |
0afd7ad9 | 117 | */ |
bcbfd207 | 118 | enum ieee802154_hw_flags { |
70f36507 AA |
119 | IEEE802154_HW_TX_OMIT_CKSUM = BIT(0), |
120 | IEEE802154_HW_LBT = BIT(1), | |
121 | IEEE802154_HW_CSMA_PARAMS = BIT(2), | |
122 | IEEE802154_HW_FRAME_RETRIES = BIT(3), | |
123 | IEEE802154_HW_AFILT = BIT(4), | |
124 | IEEE802154_HW_PROMISCUOUS = BIT(5), | |
125 | IEEE802154_HW_RX_OMIT_CKSUM = BIT(6), | |
126 | IEEE802154_HW_RX_DROP_BAD_CKSUM = BIT(7), | |
bcbfd207 | 127 | }; |
90386a7e AA |
128 | |
129 | /* Indicates that receiver omits FCS and xmitter will add FCS on it's own. */ | |
130 | #define IEEE802154_HW_OMIT_CKSUM (IEEE802154_HW_TX_OMIT_CKSUM | \ | |
131 | IEEE802154_HW_RX_OMIT_CKSUM) | |
640985ec | 132 | |
0afd7ad9 | 133 | /* struct ieee802154_ops - callbacks from mac802154 to the driver |
134 | * | |
135 | * This structure contains various callbacks that the driver may | |
136 | * handle or, in some cases, must handle, for example to transmit | |
137 | * a frame. | |
138 | * | |
139 | * start: Handler that 802.15.4 module calls for device initialization. | |
140 | * This function is called before the first interface is attached. | |
141 | * | |
142 | * stop: Handler that 802.15.4 module calls for device cleanup. | |
143 | * This function is called after the last interface is removed. | |
144 | * | |
ed0a5dce AA |
145 | * xmit_sync: |
146 | * Handler that 802.15.4 module calls for each transmitted frame. | |
147 | * skb cntains the buffer starting from the IEEE 802.15.4 header. | |
148 | * The low-level driver should send the frame based on available | |
149 | * configuration. This is called by a workqueue and useful for | |
150 | * synchronous 802.15.4 drivers. | |
151 | * This function should return zero or negative errno. | |
152 | * | |
1e7283a2 AA |
153 | * WARNING: |
154 | * This will be deprecated soon. We don't accept synced xmit callbacks | |
155 | * drivers anymore. | |
156 | * | |
ed0a5dce AA |
157 | * xmit_async: |
158 | * Handler that 802.15.4 module calls for each transmitted frame. | |
0afd7ad9 | 159 | * skb cntains the buffer starting from the IEEE 802.15.4 header. |
160 | * The low-level driver should send the frame based on available | |
161 | * configuration. | |
dc67c6b3 | 162 | * This function should return zero or negative errno. |
0afd7ad9 | 163 | * |
164 | * ed: Handler that 802.15.4 module calls for Energy Detection. | |
165 | * This function should place the value for detected energy | |
166 | * (usually device-dependant) in the level pointer and return | |
167 | * either zero or negative errno. Called with pib_lock held. | |
168 | * | |
169 | * set_channel: | |
170 | * Set radio for listening on specific channel. | |
171 | * Set the device for listening on specified channel. | |
172 | * Returns either zero, or negative errno. Called with pib_lock held. | |
173 | * | |
174 | * set_hw_addr_filt: | |
175 | * Set radio for listening on specific address. | |
176 | * Set the device for listening on specified address. | |
177 | * Returns either zero, or negative errno. | |
9b2777d6 PB |
178 | * |
179 | * set_txpower: | |
e2eb173a | 180 | * Set radio transmit power in mBm. Called with pib_lock held. |
9b2777d6 | 181 | * Returns either zero, or negative errno. |
84dda3c6 PB |
182 | * |
183 | * set_lbt | |
184 | * Enables or disables listen before talk on the device. Called with | |
185 | * pib_lock held. | |
186 | * Returns either zero, or negative errno. | |
ba08fea5 PB |
187 | * |
188 | * set_cca_mode | |
189 | * Sets the CCA mode used by the device. Called with pib_lock held. | |
190 | * Returns either zero, or negative errno. | |
6ca00197 PB |
191 | * |
192 | * set_cca_ed_level | |
32b23550 | 193 | * Sets the CCA energy detection threshold in mBm. Called with pib_lock |
6ca00197 PB |
194 | * held. |
195 | * Returns either zero, or negative errno. | |
4244db1b PB |
196 | * |
197 | * set_csma_params | |
198 | * Sets the CSMA parameter set for the PHY. Called with pib_lock held. | |
199 | * Returns either zero, or negative errno. | |
200 | * | |
201 | * set_frame_retries | |
202 | * Sets the retransmission attempt limit. Called with pib_lock held. | |
203 | * Returns either zero, or negative errno. | |
94b79222 AA |
204 | * |
205 | * set_promiscuous_mode | |
206 | * Enables or disable promiscuous mode. | |
0afd7ad9 | 207 | */ |
208 | struct ieee802154_ops { | |
209 | struct module *owner; | |
5a504397 AA |
210 | int (*start)(struct ieee802154_hw *hw); |
211 | void (*stop)(struct ieee802154_hw *hw); | |
ed0a5dce AA |
212 | int (*xmit_sync)(struct ieee802154_hw *hw, |
213 | struct sk_buff *skb); | |
214 | int (*xmit_async)(struct ieee802154_hw *hw, | |
215 | struct sk_buff *skb); | |
5a504397 | 216 | int (*ed)(struct ieee802154_hw *hw, u8 *level); |
e37d2ec8 AA |
217 | int (*set_channel)(struct ieee802154_hw *hw, u8 page, |
218 | u8 channel); | |
5a504397 AA |
219 | int (*set_hw_addr_filt)(struct ieee802154_hw *hw, |
220 | struct ieee802154_hw_addr_filt *filt, | |
0afd7ad9 | 221 | unsigned long changed); |
e2eb173a | 222 | int (*set_txpower)(struct ieee802154_hw *hw, s32 mbm); |
5a504397 | 223 | int (*set_lbt)(struct ieee802154_hw *hw, bool on); |
7fe9a388 AA |
224 | int (*set_cca_mode)(struct ieee802154_hw *hw, |
225 | const struct wpan_phy_cca *cca); | |
32b23550 | 226 | int (*set_cca_ed_level)(struct ieee802154_hw *hw, s32 mbm); |
5a504397 | 227 | int (*set_csma_params)(struct ieee802154_hw *hw, |
4244db1b | 228 | u8 min_be, u8 max_be, u8 retries); |
5a504397 | 229 | int (*set_frame_retries)(struct ieee802154_hw *hw, |
4244db1b | 230 | s8 retries); |
94b79222 AA |
231 | int (*set_promiscuous_mode)(struct ieee802154_hw *hw, |
232 | const bool on); | |
0afd7ad9 | 233 | }; |
234 | ||
54552d03 AA |
235 | /** |
236 | * ieee802154_get_fc_from_skb - get the frame control field from an skb | |
237 | * @skb: skb where the frame control field will be get from | |
238 | */ | |
239 | static inline __le16 ieee802154_get_fc_from_skb(const struct sk_buff *skb) | |
240 | { | |
aaa7088e AA |
241 | __le16 fc; |
242 | ||
07b0188a | 243 | /* check if we can fc at skb_mac_header of sk buffer */ |
048e7f7e AA |
244 | if (WARN_ON(!skb_mac_header_was_set(skb) || |
245 | (skb_tail_pointer(skb) - | |
246 | skb_mac_header(skb)) < IEEE802154_FC_LEN)) | |
54552d03 | 247 | return cpu_to_le16(0); |
54552d03 | 248 | |
aaa7088e AA |
249 | memcpy(&fc, skb_mac_header(skb), IEEE802154_FC_LEN); |
250 | return fc; | |
54552d03 AA |
251 | } |
252 | ||
9cc577dd AA |
253 | /** |
254 | * ieee802154_skb_dst_pan - get the pointer to destination pan field | |
255 | * @fc: mac header frame control field | |
256 | * @skb: skb where the destination pan pointer will be get from | |
257 | */ | |
258 | static inline unsigned char *ieee802154_skb_dst_pan(__le16 fc, | |
259 | const struct sk_buff *skb) | |
260 | { | |
261 | unsigned char *dst_pan; | |
262 | ||
263 | switch (ieee802154_daddr_mode(fc)) { | |
264 | case cpu_to_le16(IEEE802154_FCTL_ADDR_NONE): | |
265 | dst_pan = NULL; | |
266 | break; | |
267 | case cpu_to_le16(IEEE802154_FCTL_DADDR_SHORT): | |
268 | case cpu_to_le16(IEEE802154_FCTL_DADDR_EXTENDED): | |
269 | dst_pan = skb_mac_header(skb) + | |
270 | IEEE802154_FC_LEN + | |
271 | IEEE802154_SEQ_LEN; | |
272 | break; | |
273 | default: | |
274 | WARN_ONCE(1, "invalid addr mode detected"); | |
275 | dst_pan = NULL; | |
276 | break; | |
277 | } | |
278 | ||
279 | return dst_pan; | |
280 | } | |
281 | ||
19580cc1 AA |
282 | /** |
283 | * ieee802154_skb_src_pan - get the pointer to source pan field | |
284 | * @fc: mac header frame control field | |
285 | * @skb: skb where the source pan pointer will be get from | |
286 | */ | |
287 | static inline unsigned char *ieee802154_skb_src_pan(__le16 fc, | |
288 | const struct sk_buff *skb) | |
289 | { | |
290 | unsigned char *src_pan; | |
291 | ||
292 | switch (ieee802154_saddr_mode(fc)) { | |
293 | case cpu_to_le16(IEEE802154_FCTL_ADDR_NONE): | |
294 | src_pan = NULL; | |
295 | break; | |
296 | case cpu_to_le16(IEEE802154_FCTL_SADDR_SHORT): | |
297 | case cpu_to_le16(IEEE802154_FCTL_SADDR_EXTENDED): | |
298 | /* if intra-pan and source addr mode is non none, | |
299 | * then source pan id is equal destination pan id. | |
300 | */ | |
301 | if (ieee802154_is_intra_pan(fc)) { | |
302 | src_pan = ieee802154_skb_dst_pan(fc, skb); | |
303 | break; | |
304 | } | |
305 | ||
306 | switch (ieee802154_daddr_mode(fc)) { | |
307 | case cpu_to_le16(IEEE802154_FCTL_ADDR_NONE): | |
308 | src_pan = skb_mac_header(skb) + | |
309 | IEEE802154_FC_LEN + | |
310 | IEEE802154_SEQ_LEN; | |
311 | break; | |
312 | case cpu_to_le16(IEEE802154_FCTL_DADDR_SHORT): | |
313 | src_pan = skb_mac_header(skb) + | |
314 | IEEE802154_FC_LEN + | |
315 | IEEE802154_SEQ_LEN + | |
316 | IEEE802154_PAN_ID_LEN + | |
317 | IEEE802154_SHORT_ADDR_LEN; | |
318 | break; | |
319 | case cpu_to_le16(IEEE802154_FCTL_DADDR_EXTENDED): | |
320 | src_pan = skb_mac_header(skb) + | |
321 | IEEE802154_FC_LEN + | |
322 | IEEE802154_SEQ_LEN + | |
323 | IEEE802154_PAN_ID_LEN + | |
324 | IEEE802154_EXTENDED_ADDR_LEN; | |
325 | break; | |
326 | default: | |
327 | WARN_ONCE(1, "invalid addr mode detected"); | |
328 | src_pan = NULL; | |
329 | break; | |
330 | } | |
331 | break; | |
332 | default: | |
333 | WARN_ONCE(1, "invalid addr mode detected"); | |
334 | src_pan = NULL; | |
335 | break; | |
336 | } | |
337 | ||
338 | return src_pan; | |
339 | } | |
340 | ||
0ea0b9af AA |
341 | /** |
342 | * ieee802154_skb_is_intra_pan_addressing - checks whenever the mac addressing | |
343 | * is an intra pan communication | |
344 | * @fc: mac header frame control field | |
345 | * @skb: skb where the source and destination pan should be get from | |
346 | */ | |
347 | static inline bool ieee802154_skb_is_intra_pan_addressing(__le16 fc, | |
348 | const struct sk_buff *skb) | |
349 | { | |
350 | unsigned char *dst_pan = ieee802154_skb_dst_pan(fc, skb), | |
351 | *src_pan = ieee802154_skb_src_pan(fc, skb); | |
352 | ||
353 | /* if one is NULL is no intra pan addressing */ | |
354 | if (!dst_pan || !src_pan) | |
355 | return false; | |
356 | ||
357 | return !memcmp(dst_pan, src_pan, IEEE802154_PAN_ID_LEN); | |
358 | } | |
359 | ||
ab24f50f | 360 | /** |
705cbbbe AA |
361 | * ieee802154_be64_to_le64 - copies and convert be64 to le64 |
362 | * @le64_dst: le64 destination pointer | |
363 | * @be64_src: be64 source pointer | |
ab24f50f | 364 | */ |
705cbbbe | 365 | static inline void ieee802154_be64_to_le64(void *le64_dst, const void *be64_src) |
ab24f50f | 366 | { |
f1608920 | 367 | put_unaligned_le64(get_unaligned_be64(be64_src), le64_dst); |
ab24f50f AA |
368 | } |
369 | ||
239a84a9 AA |
370 | /** |
371 | * ieee802154_le64_to_be64 - copies and convert le64 to be64 | |
372 | * @be64_dst: be64 destination pointer | |
373 | * @le64_src: le64 source pointer | |
374 | */ | |
375 | static inline void ieee802154_le64_to_be64(void *be64_dst, const void *le64_src) | |
376 | { | |
f1608920 | 377 | put_unaligned_be64(get_unaligned_le64(le64_src), be64_dst); |
239a84a9 AA |
378 | } |
379 | ||
8911d774 AA |
380 | /** |
381 | * ieee802154_le16_to_be16 - copies and convert le16 to be16 | |
382 | * @be16_dst: be16 destination pointer | |
383 | * @le16_src: le16 source pointer | |
384 | */ | |
385 | static inline void ieee802154_le16_to_be16(void *be16_dst, const void *le16_src) | |
386 | { | |
f1608920 | 387 | put_unaligned_be16(get_unaligned_le16(le16_src), be16_dst); |
8911d774 AA |
388 | } |
389 | ||
118a5cf8 AA |
390 | /** |
391 | * ieee802154_be16_to_le16 - copies and convert be16 to le16 | |
392 | * @le16_dst: le16 destination pointer | |
393 | * @be16_src: be16 source pointer | |
394 | */ | |
395 | static inline void ieee802154_be16_to_le16(void *le16_dst, const void *be16_src) | |
396 | { | |
397 | put_unaligned_le16(get_unaligned_be16(be16_src), le16_dst); | |
398 | } | |
399 | ||
42fb23e2 VB |
400 | /** |
401 | * ieee802154_alloc_hw - Allocate a new hardware device | |
402 | * | |
403 | * This must be called once for each hardware device. The returned pointer | |
404 | * must be used to refer to this device when calling other functions. | |
405 | * mac802154 allocates a private data area for the driver pointed to by | |
406 | * @priv in &struct ieee802154_hw, the size of this area is given as | |
407 | * @priv_data_len. | |
408 | * | |
409 | * @priv_data_len: length of private data | |
410 | * @ops: callbacks for this device | |
411 | * | |
412 | * Return: A pointer to the new hardware device, or %NULL on error. | |
413 | */ | |
5a504397 | 414 | struct ieee802154_hw * |
16301861 | 415 | ieee802154_alloc_hw(size_t priv_data_len, const struct ieee802154_ops *ops); |
42fb23e2 VB |
416 | |
417 | /** | |
418 | * ieee802154_free_hw - free hardware descriptor | |
419 | * | |
420 | * This function frees everything that was allocated, including the | |
421 | * private data for the driver. You must call ieee802154_unregister_hw() | |
422 | * before calling this function. | |
423 | * | |
424 | * @hw: the hardware to free | |
425 | */ | |
5a504397 | 426 | void ieee802154_free_hw(struct ieee802154_hw *hw); |
42fb23e2 VB |
427 | |
428 | /** | |
429 | * ieee802154_register_hw - Register hardware device | |
430 | * | |
431 | * You must call this function before any other functions in | |
432 | * mac802154. Note that before a hardware can be registered, you | |
433 | * need to fill the contained wpan_phy's information. | |
434 | * | |
435 | * @hw: the device to register as returned by ieee802154_alloc_hw() | |
436 | * | |
437 | * Return: 0 on success. An error code otherwise. | |
438 | */ | |
5a504397 | 439 | int ieee802154_register_hw(struct ieee802154_hw *hw); |
42fb23e2 VB |
440 | |
441 | /** | |
442 | * ieee802154_unregister_hw - Unregister a hardware device | |
443 | * | |
444 | * This function instructs mac802154 to free allocated resources | |
445 | * and unregister netdevices from the networking subsystem. | |
446 | * | |
447 | * @hw: the hardware to unregister | |
448 | */ | |
5a504397 | 449 | void ieee802154_unregister_hw(struct ieee802154_hw *hw); |
1010f540 | 450 | |
42fb23e2 VB |
451 | /** |
452 | * ieee802154_rx_irqsafe - receive frame | |
453 | * | |
454 | * Like ieee802154_rx() but can be called in IRQ context | |
455 | * (internally defers to a tasklet.) | |
456 | * | |
457 | * @hw: the hardware this frame came in on | |
458 | * @skb: the buffer to receive, owned by mac802154 after this call | |
459 | * @lqi: link quality indicator | |
460 | */ | |
5a504397 | 461 | void ieee802154_rx_irqsafe(struct ieee802154_hw *hw, struct sk_buff *skb, |
1cd829c8 | 462 | u8 lqi); |
42fb23e2 VB |
463 | /** |
464 | * ieee802154_wake_queue - wake ieee802154 queue | |
465 | * @hw: pointer as obtained from ieee802154_alloc_hw(). | |
466 | * | |
c265a3a6 MR |
467 | * Tranceivers usually have either one transmit framebuffer or one framebuffer |
468 | * for both transmitting and receiving. Hence, the core currently only handles | |
469 | * one frame at a time for each phy, which means we had to stop the queue to | |
470 | * avoid new skb to come during the transmission. The queue then needs to be | |
471 | * woken up after the operation. | |
472 | * | |
42fb23e2 VB |
473 | * Drivers should use this function instead of netif_wake_queue. |
474 | */ | |
c2085103 | 475 | void ieee802154_wake_queue(struct ieee802154_hw *hw); |
42fb23e2 VB |
476 | |
477 | /** | |
478 | * ieee802154_stop_queue - stop ieee802154 queue | |
479 | * @hw: pointer as obtained from ieee802154_alloc_hw(). | |
480 | * | |
c265a3a6 MR |
481 | * Tranceivers usually have either one transmit framebuffer or one framebuffer |
482 | * for both transmitting and receiving. Hence, the core currently only handles | |
483 | * one frame at a time for each phy, which means we need to tell upper layers to | |
484 | * stop giving us new skbs while we are busy with the transmitted one. The queue | |
485 | * must then be stopped before transmitting. | |
486 | * | |
42fb23e2 VB |
487 | * Drivers should use this function instead of netif_stop_queue. |
488 | */ | |
c2085103 | 489 | void ieee802154_stop_queue(struct ieee802154_hw *hw); |
42fb23e2 VB |
490 | |
491 | /** | |
492 | * ieee802154_xmit_complete - frame transmission complete | |
493 | * | |
494 | * @hw: pointer as obtained from ieee802154_alloc_hw(). | |
495 | * @skb: buffer for transmission | |
496 | * @ifs_handling: indicate interframe space handling | |
497 | */ | |
61f2dcba AA |
498 | void ieee802154_xmit_complete(struct ieee802154_hw *hw, struct sk_buff *skb, |
499 | bool ifs_handling); | |
c2085103 | 500 | |
30ca44eb MR |
501 | /** |
502 | * ieee802154_xmit_error - offloaded frame transmission failed | |
503 | * | |
504 | * @hw: pointer as obtained from ieee802154_alloc_hw(). | |
505 | * @skb: buffer for transmission | |
506 | * @reason: error code | |
507 | */ | |
508 | void ieee802154_xmit_error(struct ieee802154_hw *hw, struct sk_buff *skb, | |
509 | int reason); | |
510 | ||
5a1b57c0 MR |
511 | /** |
512 | * ieee802154_xmit_hw_error - frame could not be offloaded to the transmitter | |
513 | * because of a hardware error (bus error, timeout, etc) | |
514 | * | |
515 | * @hw: pointer as obtained from ieee802154_alloc_hw(). | |
516 | * @skb: buffer for transmission | |
517 | */ | |
518 | void ieee802154_xmit_hw_error(struct ieee802154_hw *hw, struct sk_buff *skb); | |
519 | ||
0afd7ad9 | 520 | #endif /* NET_MAC802154_H */ |