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15c9ac0c SB |
1 | /* |
2 | * Copyright (C) ST-Ericsson AB 2010 | |
3 | * Author: Sjur Brendeland/sjur.brandeland@stericsson.com | |
4 | * License terms: GNU General Public License (GPL) version 2 | |
5 | */ | |
b31fa5ba JP |
6 | |
7 | #define pr_fmt(fmt) KBUILD_MODNAME ":%s(): " fmt, __func__ | |
8 | ||
15c9ac0c SB |
9 | #include <linux/kernel.h> |
10 | #include <linux/stddef.h> | |
6c579906 | 11 | #include <linux/slab.h> |
2aa40aef | 12 | #include <linux/netdevice.h> |
15c9ac0c SB |
13 | #include <net/caif/caif_layer.h> |
14 | #include <net/caif/cfpkt.h> | |
15 | #include <net/caif/cfcnfg.h> | |
16 | #include <net/caif/cfctrl.h> | |
17 | #include <net/caif/cfmuxl.h> | |
18 | #include <net/caif/cffrml.h> | |
19 | #include <net/caif/cfserl.h> | |
20 | #include <net/caif/cfsrvl.h> | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <asm/atomic.h> | |
24 | ||
25 | #define MAX_PHY_LAYERS 7 | |
26 | #define PHY_NAME_LEN 20 | |
27 | ||
28 | #define container_obj(layr) container_of(layr, struct cfcnfg, layer) | |
a7da1f55 | 29 | #define RFM_FRAGMENT_SIZE 4030 |
15c9ac0c SB |
30 | |
31 | /* Information about CAIF physical interfaces held by Config Module in order | |
32 | * to manage physical interfaces | |
33 | */ | |
34 | struct cfcnfg_phyinfo { | |
35 | /* Pointer to the layer below the MUX (framing layer) */ | |
36 | struct cflayer *frm_layer; | |
37 | /* Pointer to the lowest actual physical layer */ | |
38 | struct cflayer *phy_layer; | |
39 | /* Unique identifier of the physical interface */ | |
40 | unsigned int id; | |
41 | /* Preference of the physical in interface */ | |
42 | enum cfcnfg_phy_preference pref; | |
43 | ||
44 | /* Reference count, number of channels using the device */ | |
45 | int phy_ref_count; | |
46 | ||
47 | /* Information about the physical device */ | |
48 | struct dev_info dev_info; | |
2aa40aef SB |
49 | |
50 | /* Interface index */ | |
51 | int ifindex; | |
52 | ||
53 | /* Use Start of frame extension */ | |
54 | bool use_stx; | |
55 | ||
56 | /* Use Start of frame checksum */ | |
57 | bool use_fcs; | |
15c9ac0c SB |
58 | }; |
59 | ||
60 | struct cfcnfg { | |
61 | struct cflayer layer; | |
62 | struct cflayer *ctrl; | |
63 | struct cflayer *mux; | |
64 | u8 last_phyid; | |
65 | struct cfcnfg_phyinfo phy_layers[MAX_PHY_LAYERS]; | |
66 | }; | |
67 | ||
e539d83c | 68 | static void cfcnfg_linkup_rsp(struct cflayer *layer, u8 channel_id, |
15c9ac0c SB |
69 | enum cfctrl_srv serv, u8 phyid, |
70 | struct cflayer *adapt_layer); | |
8d545c8f | 71 | static void cfcnfg_linkdestroy_rsp(struct cflayer *layer, u8 channel_id); |
e539d83c | 72 | static void cfcnfg_reject_rsp(struct cflayer *layer, u8 channel_id, |
15c9ac0c SB |
73 | struct cflayer *adapt_layer); |
74 | static void cfctrl_resp_func(void); | |
75 | static void cfctrl_enum_resp(void); | |
76 | ||
77 | struct cfcnfg *cfcnfg_create(void) | |
78 | { | |
79 | struct cfcnfg *this; | |
80 | struct cfctrl_rsp *resp; | |
81 | /* Initiate this layer */ | |
49afa55b | 82 | this = kzalloc(sizeof(struct cfcnfg), GFP_ATOMIC); |
15c9ac0c | 83 | if (!this) { |
b31fa5ba | 84 | pr_warn("Out of memory\n"); |
15c9ac0c SB |
85 | return NULL; |
86 | } | |
15c9ac0c SB |
87 | this->mux = cfmuxl_create(); |
88 | if (!this->mux) | |
89 | goto out_of_mem; | |
90 | this->ctrl = cfctrl_create(); | |
91 | if (!this->ctrl) | |
92 | goto out_of_mem; | |
93 | /* Initiate response functions */ | |
94 | resp = cfctrl_get_respfuncs(this->ctrl); | |
95 | resp->enum_rsp = cfctrl_enum_resp; | |
96 | resp->linkerror_ind = cfctrl_resp_func; | |
e539d83c | 97 | resp->linkdestroy_rsp = cfcnfg_linkdestroy_rsp; |
15c9ac0c SB |
98 | resp->sleep_rsp = cfctrl_resp_func; |
99 | resp->wake_rsp = cfctrl_resp_func; | |
100 | resp->restart_rsp = cfctrl_resp_func; | |
101 | resp->radioset_rsp = cfctrl_resp_func; | |
e539d83c SB |
102 | resp->linksetup_rsp = cfcnfg_linkup_rsp; |
103 | resp->reject_rsp = cfcnfg_reject_rsp; | |
15c9ac0c SB |
104 | |
105 | this->last_phyid = 1; | |
106 | ||
107 | cfmuxl_set_uplayer(this->mux, this->ctrl, 0); | |
108 | layer_set_dn(this->ctrl, this->mux); | |
109 | layer_set_up(this->ctrl, this); | |
110 | return this; | |
111 | out_of_mem: | |
b31fa5ba | 112 | pr_warn("Out of memory\n"); |
15c9ac0c SB |
113 | kfree(this->mux); |
114 | kfree(this->ctrl); | |
115 | kfree(this); | |
116 | return NULL; | |
117 | } | |
118 | EXPORT_SYMBOL(cfcnfg_create); | |
119 | ||
120 | void cfcnfg_remove(struct cfcnfg *cfg) | |
121 | { | |
122 | if (cfg) { | |
123 | kfree(cfg->mux); | |
124 | kfree(cfg->ctrl); | |
125 | kfree(cfg); | |
126 | } | |
127 | } | |
128 | ||
129 | static void cfctrl_resp_func(void) | |
130 | { | |
131 | } | |
132 | ||
133 | static void cfctrl_enum_resp(void) | |
134 | { | |
135 | } | |
136 | ||
137 | struct dev_info *cfcnfg_get_phyid(struct cfcnfg *cnfg, | |
138 | enum cfcnfg_phy_preference phy_pref) | |
139 | { | |
140 | u16 i; | |
141 | ||
142 | /* Try to match with specified preference */ | |
143 | for (i = 1; i < MAX_PHY_LAYERS; i++) { | |
144 | if (cnfg->phy_layers[i].id == i && | |
145 | cnfg->phy_layers[i].pref == phy_pref && | |
146 | cnfg->phy_layers[i].frm_layer != NULL) { | |
147 | caif_assert(cnfg->phy_layers != NULL); | |
148 | caif_assert(cnfg->phy_layers[i].id == i); | |
149 | return &cnfg->phy_layers[i].dev_info; | |
150 | } | |
151 | } | |
152 | /* Otherwise just return something */ | |
153 | for (i = 1; i < MAX_PHY_LAYERS; i++) { | |
154 | if (cnfg->phy_layers[i].id == i) { | |
155 | caif_assert(cnfg->phy_layers != NULL); | |
156 | caif_assert(cnfg->phy_layers[i].id == i); | |
157 | return &cnfg->phy_layers[i].dev_info; | |
158 | } | |
159 | } | |
160 | ||
161 | return NULL; | |
162 | } | |
163 | ||
164 | static struct cfcnfg_phyinfo *cfcnfg_get_phyinfo(struct cfcnfg *cnfg, | |
165 | u8 phyid) | |
166 | { | |
167 | int i; | |
168 | /* Try to match with specified preference */ | |
169 | for (i = 0; i < MAX_PHY_LAYERS; i++) | |
170 | if (cnfg->phy_layers[i].frm_layer != NULL && | |
171 | cnfg->phy_layers[i].id == phyid) | |
172 | return &cnfg->phy_layers[i]; | |
173 | return NULL; | |
174 | } | |
175 | ||
176 | int cfcnfg_get_named(struct cfcnfg *cnfg, char *name) | |
177 | { | |
178 | int i; | |
179 | ||
180 | /* Try to match with specified name */ | |
181 | for (i = 0; i < MAX_PHY_LAYERS; i++) { | |
182 | if (cnfg->phy_layers[i].frm_layer != NULL | |
183 | && strcmp(cnfg->phy_layers[i].phy_layer->name, | |
184 | name) == 0) | |
185 | return cnfg->phy_layers[i].frm_layer->id; | |
186 | } | |
187 | return 0; | |
188 | } | |
189 | ||
e539d83c | 190 | int cfcnfg_disconn_adapt_layer(struct cfcnfg *cnfg, struct cflayer *adap_layer) |
15c9ac0c SB |
191 | { |
192 | u8 channel_id = 0; | |
193 | int ret = 0; | |
8d545c8f | 194 | struct cflayer *servl = NULL; |
15c9ac0c SB |
195 | struct cfcnfg_phyinfo *phyinfo = NULL; |
196 | u8 phyid = 0; | |
15c9ac0c SB |
197 | caif_assert(adap_layer != NULL); |
198 | channel_id = adap_layer->id; | |
8d545c8f | 199 | if (adap_layer->dn == NULL || channel_id == 0) { |
b04367df | 200 | pr_err("adap_layer->dn == NULL or adap_layer->id is 0\n"); |
15c9ac0c SB |
201 | ret = -ENOTCONN; |
202 | goto end; | |
203 | } | |
8d545c8f SB |
204 | servl = cfmuxl_remove_uplayer(cnfg->mux, channel_id); |
205 | if (servl == NULL) | |
15c9ac0c | 206 | goto end; |
8d545c8f SB |
207 | layer_set_up(servl, NULL); |
208 | ret = cfctrl_linkdown_req(cnfg->ctrl, channel_id, adap_layer); | |
209 | if (servl == NULL) { | |
b31fa5ba JP |
210 | pr_err("PROTOCOL ERROR - Error removing service_layer Channel_Id(%d)", |
211 | channel_id); | |
15c9ac0c SB |
212 | ret = -EINVAL; |
213 | goto end; | |
214 | } | |
8d545c8f SB |
215 | caif_assert(channel_id == servl->id); |
216 | if (adap_layer->dn != NULL) { | |
217 | phyid = cfsrvl_getphyid(adap_layer->dn); | |
15c9ac0c | 218 | |
8d545c8f SB |
219 | phyinfo = cfcnfg_get_phyinfo(cnfg, phyid); |
220 | if (phyinfo == NULL) { | |
b31fa5ba | 221 | pr_warn("No interface to send disconnect to\n"); |
8d545c8f SB |
222 | ret = -ENODEV; |
223 | goto end; | |
224 | } | |
225 | if (phyinfo->id != phyid || | |
226 | phyinfo->phy_layer->id != phyid || | |
227 | phyinfo->frm_layer->id != phyid) { | |
b31fa5ba | 228 | pr_err("Inconsistency in phy registration\n"); |
8d545c8f SB |
229 | ret = -EINVAL; |
230 | goto end; | |
231 | } | |
232 | } | |
15c9ac0c SB |
233 | if (phyinfo != NULL && --phyinfo->phy_ref_count == 0 && |
234 | phyinfo->phy_layer != NULL && | |
235 | phyinfo->phy_layer->modemcmd != NULL) { | |
236 | phyinfo->phy_layer->modemcmd(phyinfo->phy_layer, | |
237 | _CAIF_MODEMCMD_PHYIF_USELESS); | |
238 | } | |
8d545c8f SB |
239 | end: |
240 | cfsrvl_put(servl); | |
241 | cfctrl_cancel_req(cnfg->ctrl, adap_layer); | |
242 | if (adap_layer->ctrlcmd != NULL) | |
243 | adap_layer->ctrlcmd(adap_layer, CAIF_CTRLCMD_DEINIT_RSP, 0); | |
15c9ac0c SB |
244 | return ret; |
245 | ||
246 | } | |
e539d83c | 247 | EXPORT_SYMBOL(cfcnfg_disconn_adapt_layer); |
15c9ac0c | 248 | |
5b208656 SB |
249 | void cfcnfg_release_adap_layer(struct cflayer *adap_layer) |
250 | { | |
251 | if (adap_layer->dn) | |
252 | cfsrvl_put(adap_layer->dn); | |
253 | } | |
254 | EXPORT_SYMBOL(cfcnfg_release_adap_layer); | |
255 | ||
8d545c8f | 256 | static void cfcnfg_linkdestroy_rsp(struct cflayer *layer, u8 channel_id) |
15c9ac0c | 257 | { |
15c9ac0c SB |
258 | } |
259 | ||
2aa40aef SB |
260 | int protohead[CFCTRL_SRV_MASK] = { |
261 | [CFCTRL_SRV_VEI] = 4, | |
262 | [CFCTRL_SRV_DATAGRAM] = 7, | |
263 | [CFCTRL_SRV_UTIL] = 4, | |
264 | [CFCTRL_SRV_RFM] = 3, | |
265 | [CFCTRL_SRV_DBG] = 3, | |
266 | }; | |
267 | ||
8d545c8f | 268 | int cfcnfg_add_adaptation_layer(struct cfcnfg *cnfg, |
15c9ac0c | 269 | struct cfctrl_link_param *param, |
2aa40aef SB |
270 | struct cflayer *adap_layer, |
271 | int *ifindex, | |
272 | int *proto_head, | |
273 | int *proto_tail) | |
15c9ac0c SB |
274 | { |
275 | struct cflayer *frml; | |
276 | if (adap_layer == NULL) { | |
b31fa5ba | 277 | pr_err("adap_layer is zero\n"); |
15c9ac0c SB |
278 | return -EINVAL; |
279 | } | |
280 | if (adap_layer->receive == NULL) { | |
b31fa5ba | 281 | pr_err("adap_layer->receive is NULL\n"); |
15c9ac0c SB |
282 | return -EINVAL; |
283 | } | |
284 | if (adap_layer->ctrlcmd == NULL) { | |
b31fa5ba | 285 | pr_err("adap_layer->ctrlcmd == NULL\n"); |
15c9ac0c SB |
286 | return -EINVAL; |
287 | } | |
288 | frml = cnfg->phy_layers[param->phyid].frm_layer; | |
289 | if (frml == NULL) { | |
b31fa5ba | 290 | pr_err("Specified PHY type does not exist!\n"); |
15c9ac0c SB |
291 | return -ENODEV; |
292 | } | |
293 | caif_assert(param->phyid == cnfg->phy_layers[param->phyid].id); | |
294 | caif_assert(cnfg->phy_layers[param->phyid].frm_layer->id == | |
295 | param->phyid); | |
296 | caif_assert(cnfg->phy_layers[param->phyid].phy_layer->id == | |
297 | param->phyid); | |
2aa40aef SB |
298 | |
299 | *ifindex = cnfg->phy_layers[param->phyid].ifindex; | |
300 | *proto_head = | |
301 | protohead[param->linktype]+ | |
302 | (cnfg->phy_layers[param->phyid].use_stx ? 1 : 0); | |
303 | ||
304 | *proto_tail = 2; | |
305 | ||
15c9ac0c SB |
306 | /* FIXME: ENUMERATE INITIALLY WHEN ACTIVATING PHYSICAL INTERFACE */ |
307 | cfctrl_enum_req(cnfg->ctrl, param->phyid); | |
8d545c8f | 308 | return cfctrl_linkup_request(cnfg->ctrl, param, adap_layer); |
15c9ac0c SB |
309 | } |
310 | EXPORT_SYMBOL(cfcnfg_add_adaptation_layer); | |
311 | ||
e539d83c | 312 | static void cfcnfg_reject_rsp(struct cflayer *layer, u8 channel_id, |
15c9ac0c SB |
313 | struct cflayer *adapt_layer) |
314 | { | |
315 | if (adapt_layer != NULL && adapt_layer->ctrlcmd != NULL) | |
316 | adapt_layer->ctrlcmd(adapt_layer, | |
317 | CAIF_CTRLCMD_INIT_FAIL_RSP, 0); | |
318 | } | |
319 | ||
320 | static void | |
e539d83c | 321 | cfcnfg_linkup_rsp(struct cflayer *layer, u8 channel_id, enum cfctrl_srv serv, |
15c9ac0c SB |
322 | u8 phyid, struct cflayer *adapt_layer) |
323 | { | |
324 | struct cfcnfg *cnfg = container_obj(layer); | |
325 | struct cflayer *servicel = NULL; | |
326 | struct cfcnfg_phyinfo *phyinfo; | |
2aa40aef SB |
327 | struct net_device *netdev; |
328 | ||
15c9ac0c | 329 | if (adapt_layer == NULL) { |
b31fa5ba | 330 | pr_debug("link setup response but no client exist, send linkdown back\n"); |
8d545c8f | 331 | cfctrl_linkdown_req(cnfg->ctrl, channel_id, NULL); |
15c9ac0c SB |
332 | return; |
333 | } | |
334 | ||
335 | caif_assert(cnfg != NULL); | |
336 | caif_assert(phyid != 0); | |
337 | phyinfo = &cnfg->phy_layers[phyid]; | |
15c9ac0c SB |
338 | caif_assert(phyinfo->id == phyid); |
339 | caif_assert(phyinfo->phy_layer != NULL); | |
340 | caif_assert(phyinfo->phy_layer->id == phyid); | |
341 | ||
9bfca3c6 DC |
342 | phyinfo->phy_ref_count++; |
343 | if (phyinfo->phy_ref_count == 1 && | |
15c9ac0c | 344 | phyinfo->phy_layer->modemcmd != NULL) { |
15c9ac0c SB |
345 | phyinfo->phy_layer->modemcmd(phyinfo->phy_layer, |
346 | _CAIF_MODEMCMD_PHYIF_USEFULL); | |
15c9ac0c | 347 | } |
e539d83c | 348 | adapt_layer->id = channel_id; |
15c9ac0c SB |
349 | |
350 | switch (serv) { | |
351 | case CFCTRL_SRV_VEI: | |
e539d83c | 352 | servicel = cfvei_create(channel_id, &phyinfo->dev_info); |
15c9ac0c SB |
353 | break; |
354 | case CFCTRL_SRV_DATAGRAM: | |
e539d83c | 355 | servicel = cfdgml_create(channel_id, &phyinfo->dev_info); |
15c9ac0c SB |
356 | break; |
357 | case CFCTRL_SRV_RFM: | |
2aa40aef | 358 | netdev = phyinfo->dev_info.dev; |
a7da1f55 | 359 | servicel = cfrfml_create(channel_id, &phyinfo->dev_info, |
2aa40aef | 360 | netdev->mtu); |
15c9ac0c SB |
361 | break; |
362 | case CFCTRL_SRV_UTIL: | |
e539d83c | 363 | servicel = cfutill_create(channel_id, &phyinfo->dev_info); |
15c9ac0c SB |
364 | break; |
365 | case CFCTRL_SRV_VIDEO: | |
e539d83c | 366 | servicel = cfvidl_create(channel_id, &phyinfo->dev_info); |
15c9ac0c SB |
367 | break; |
368 | case CFCTRL_SRV_DBG: | |
e539d83c | 369 | servicel = cfdbgl_create(channel_id, &phyinfo->dev_info); |
15c9ac0c SB |
370 | break; |
371 | default: | |
b31fa5ba | 372 | pr_err("Protocol error. Link setup response - unknown channel type\n"); |
15c9ac0c SB |
373 | return; |
374 | } | |
375 | if (!servicel) { | |
b31fa5ba | 376 | pr_warn("Out of memory\n"); |
15c9ac0c SB |
377 | return; |
378 | } | |
379 | layer_set_dn(servicel, cnfg->mux); | |
e539d83c | 380 | cfmuxl_set_uplayer(cnfg->mux, servicel, channel_id); |
15c9ac0c SB |
381 | layer_set_up(servicel, adapt_layer); |
382 | layer_set_dn(adapt_layer, servicel); | |
8d545c8f | 383 | cfsrvl_get(servicel); |
15c9ac0c SB |
384 | servicel->ctrlcmd(servicel, CAIF_CTRLCMD_INIT_RSP, 0); |
385 | } | |
386 | ||
387 | void | |
388 | cfcnfg_add_phy_layer(struct cfcnfg *cnfg, enum cfcnfg_phy_type phy_type, | |
2aa40aef SB |
389 | struct net_device *dev, struct cflayer *phy_layer, |
390 | u16 *phyid, enum cfcnfg_phy_preference pref, | |
15c9ac0c SB |
391 | bool fcs, bool stx) |
392 | { | |
393 | struct cflayer *frml; | |
394 | struct cflayer *phy_driver = NULL; | |
395 | int i; | |
396 | ||
397 | ||
398 | if (cnfg->phy_layers[cnfg->last_phyid].frm_layer == NULL) { | |
399 | *phyid = cnfg->last_phyid; | |
400 | ||
401 | /* range: * 1..(MAX_PHY_LAYERS-1) */ | |
402 | cnfg->last_phyid = | |
403 | (cnfg->last_phyid % (MAX_PHY_LAYERS - 1)) + 1; | |
404 | } else { | |
405 | *phyid = 0; | |
406 | for (i = 1; i < MAX_PHY_LAYERS; i++) { | |
407 | if (cnfg->phy_layers[i].frm_layer == NULL) { | |
408 | *phyid = i; | |
409 | break; | |
410 | } | |
411 | } | |
412 | } | |
413 | if (*phyid == 0) { | |
b31fa5ba | 414 | pr_err("No Available PHY ID\n"); |
15c9ac0c SB |
415 | return; |
416 | } | |
417 | ||
418 | switch (phy_type) { | |
419 | case CFPHYTYPE_FRAG: | |
420 | phy_driver = | |
421 | cfserl_create(CFPHYTYPE_FRAG, *phyid, stx); | |
422 | if (!phy_driver) { | |
b31fa5ba | 423 | pr_warn("Out of memory\n"); |
15c9ac0c SB |
424 | return; |
425 | } | |
426 | ||
427 | break; | |
428 | case CFPHYTYPE_CAIF: | |
429 | phy_driver = NULL; | |
430 | break; | |
431 | default: | |
b31fa5ba | 432 | pr_err("%d\n", phy_type); |
15c9ac0c SB |
433 | return; |
434 | break; | |
435 | } | |
436 | ||
437 | phy_layer->id = *phyid; | |
438 | cnfg->phy_layers[*phyid].pref = pref; | |
439 | cnfg->phy_layers[*phyid].id = *phyid; | |
440 | cnfg->phy_layers[*phyid].dev_info.id = *phyid; | |
441 | cnfg->phy_layers[*phyid].dev_info.dev = dev; | |
442 | cnfg->phy_layers[*phyid].phy_layer = phy_layer; | |
443 | cnfg->phy_layers[*phyid].phy_ref_count = 0; | |
2aa40aef SB |
444 | cnfg->phy_layers[*phyid].ifindex = dev->ifindex; |
445 | cnfg->phy_layers[*phyid].use_stx = stx; | |
446 | cnfg->phy_layers[*phyid].use_fcs = fcs; | |
447 | ||
15c9ac0c SB |
448 | phy_layer->type = phy_type; |
449 | frml = cffrml_create(*phyid, fcs); | |
450 | if (!frml) { | |
b31fa5ba | 451 | pr_warn("Out of memory\n"); |
15c9ac0c SB |
452 | return; |
453 | } | |
454 | cnfg->phy_layers[*phyid].frm_layer = frml; | |
455 | cfmuxl_set_dnlayer(cnfg->mux, frml, *phyid); | |
456 | layer_set_up(frml, cnfg->mux); | |
457 | ||
458 | if (phy_driver != NULL) { | |
459 | phy_driver->id = *phyid; | |
460 | layer_set_dn(frml, phy_driver); | |
461 | layer_set_up(phy_driver, frml); | |
462 | layer_set_dn(phy_driver, phy_layer); | |
463 | layer_set_up(phy_layer, phy_driver); | |
464 | } else { | |
465 | layer_set_dn(frml, phy_layer); | |
466 | layer_set_up(phy_layer, frml); | |
467 | } | |
468 | } | |
469 | EXPORT_SYMBOL(cfcnfg_add_phy_layer); | |
470 | ||
471 | int cfcnfg_del_phy_layer(struct cfcnfg *cnfg, struct cflayer *phy_layer) | |
472 | { | |
473 | struct cflayer *frml, *frml_dn; | |
474 | u16 phyid; | |
475 | phyid = phy_layer->id; | |
476 | caif_assert(phyid == cnfg->phy_layers[phyid].id); | |
477 | caif_assert(phy_layer == cnfg->phy_layers[phyid].phy_layer); | |
478 | caif_assert(phy_layer->id == phyid); | |
479 | caif_assert(cnfg->phy_layers[phyid].frm_layer->id == phyid); | |
480 | ||
481 | memset(&cnfg->phy_layers[phy_layer->id], 0, | |
482 | sizeof(struct cfcnfg_phyinfo)); | |
483 | frml = cfmuxl_remove_dnlayer(cnfg->mux, phy_layer->id); | |
484 | frml_dn = frml->dn; | |
485 | cffrml_set_uplayer(frml, NULL); | |
486 | cffrml_set_dnlayer(frml, NULL); | |
487 | kfree(frml); | |
488 | ||
489 | if (phy_layer != frml_dn) { | |
490 | layer_set_up(frml_dn, NULL); | |
491 | layer_set_dn(frml_dn, NULL); | |
492 | kfree(frml_dn); | |
493 | } | |
494 | layer_set_up(phy_layer, NULL); | |
495 | return 0; | |
496 | } | |
497 | EXPORT_SYMBOL(cfcnfg_del_phy_layer); |