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1 | /* |
1 | /* |
2 | * Copyright (c) 2007 Josef Cejka |
2 | * Copyright (c) 2007 Josef Cejka |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** |
29 | /** |
30 | * @defgroup devmap Device mapper. |
30 | * @defgroup devmap Device mapper. |
31 | * @brief HelenOS device mapper. |
31 | * @brief HelenOS device mapper. |
32 | * @{ |
32 | * @{ |
33 | */ |
33 | */ |
34 | 34 | ||
35 | /** @file |
35 | /** @file |
36 | */ |
36 | */ |
37 | 37 | ||
38 | #include <ipc/services.h> |
38 | #include <ipc/services.h> |
39 | #include <ipc/ns.h> |
39 | #include <ipc/ns.h> |
40 | #include <async.h> |
40 | #include <async.h> |
41 | #include <stdio.h> |
41 | #include <stdio.h> |
42 | #include <errno.h> |
42 | #include <errno.h> |
43 | #include <bool.h> |
43 | #include <bool.h> |
44 | #include <futex.h> |
44 | #include <futex.h> |
45 | #include <stdlib.h> |
45 | #include <stdlib.h> |
46 | #include <string.h> |
46 | #include <string.h> |
47 | 47 | ||
48 | #include "devmap.h" |
48 | #include "devmap.h" |
49 | 49 | ||
50 | 50 | ||
51 | LIST_INITIALIZE(devices_list); |
51 | LIST_INITIALIZE(devices_list); |
52 | LIST_INITIALIZE(drivers_list); |
52 | LIST_INITIALIZE(drivers_list); |
53 | 53 | ||
54 | /* order of locking: |
54 | /* order of locking: |
55 | * drivers_list_futex |
55 | * drivers_list_futex |
56 | * devices_list_futex |
56 | * devices_list_futex |
57 | * (devmap_driver_t *)->devices_futex |
57 | * (devmap_driver_t *)->devices_futex |
58 | * create_handle_futex |
58 | * create_handle_futex |
59 | **/ |
59 | **/ |
60 | 60 | ||
61 | static atomic_t devices_list_futex = FUTEX_INITIALIZER; |
61 | static atomic_t devices_list_futex = FUTEX_INITIALIZER; |
62 | static atomic_t drivers_list_futex = FUTEX_INITIALIZER; |
62 | static atomic_t drivers_list_futex = FUTEX_INITIALIZER; |
63 | static atomic_t create_handle_futex = FUTEX_INITIALIZER; |
63 | static atomic_t create_handle_futex = FUTEX_INITIALIZER; |
64 | 64 | ||
65 | 65 | ||
66 | static int devmap_create_handle(void) |
66 | static int devmap_create_handle(void) |
67 | { |
67 | { |
68 | static int last_handle = 0; |
68 | static int last_handle = 0; |
69 | int handle; |
69 | int handle; |
70 | 70 | ||
71 | /* TODO: allow reusing old handles after their unregistration |
71 | /* TODO: allow reusing old handles after their unregistration |
72 | and implement some version of LRU algorithm */ |
72 | and implement some version of LRU algorithm */ |
73 | /* FIXME: overflow */ |
73 | /* FIXME: overflow */ |
74 | futex_down(&create_handle_futex); |
74 | futex_down(&create_handle_futex); |
75 | 75 | ||
76 | last_handle += 1; |
76 | last_handle += 1; |
77 | handle = last_handle; |
77 | handle = last_handle; |
78 | 78 | ||
79 | futex_up(&create_handle_futex); |
79 | futex_up(&create_handle_futex); |
80 | 80 | ||
81 | return handle; |
81 | return handle; |
82 | } |
82 | } |
83 | 83 | ||
84 | 84 | ||
85 | /** Initialize device mapper. |
85 | /** Initialize device mapper. |
86 | * |
86 | * |
87 | * |
87 | * |
88 | */ |
88 | */ |
89 | static int devmap_init() |
89 | static int devmap_init() |
90 | { |
90 | { |
91 | /* TODO: */ |
91 | /* TODO: */ |
92 | 92 | ||
93 | return EOK; |
93 | return EOK; |
94 | } |
94 | } |
95 | 95 | ||
96 | /** Find device with given name. |
96 | /** Find device with given name. |
97 | * |
97 | * |
98 | */ |
98 | */ |
99 | static devmap_device_t *devmap_device_find_name(const char *name) |
99 | static devmap_device_t *devmap_device_find_name(const char *name) |
100 | { |
100 | { |
101 | link_t *item; |
101 | link_t *item; |
102 | devmap_device_t *device = NULL; |
102 | devmap_device_t *device = NULL; |
103 | 103 | ||
104 | item = devices_list.next; |
104 | item = devices_list.next; |
105 | 105 | ||
106 | while (item != &devices_list) { |
106 | while (item != &devices_list) { |
107 | 107 | ||
108 | device = list_get_instance(item, devmap_device_t, devices); |
108 | device = list_get_instance(item, devmap_device_t, devices); |
109 | if (0 == strcmp(device->name, name)) { |
109 | if (0 == strcmp(device->name, name)) { |
110 | break; |
110 | break; |
111 | } |
111 | } |
112 | item = item->next; |
112 | item = item->next; |
113 | } |
113 | } |
114 | 114 | ||
115 | if (item == &devices_list) { |
115 | if (item == &devices_list) { |
116 | printf("DEVMAP: no device named %s.\n", name); |
116 | printf("DEVMAP: no device named %s.\n", name); |
117 | return NULL; |
117 | return NULL; |
118 | } |
118 | } |
119 | 119 | ||
120 | device = list_get_instance(item, devmap_device_t, devices); |
120 | device = list_get_instance(item, devmap_device_t, devices); |
121 | return device; |
121 | return device; |
122 | } |
122 | } |
123 | 123 | ||
124 | /** Find device with given handle. |
124 | /** Find device with given handle. |
125 | * @todo: use hash table |
125 | * @todo: use hash table |
126 | */ |
126 | */ |
127 | static devmap_device_t *devmap_device_find_handle(int handle) |
127 | static devmap_device_t *devmap_device_find_handle(int handle) |
128 | { |
128 | { |
129 | link_t *item; |
129 | link_t *item; |
130 | devmap_device_t *device = NULL; |
130 | devmap_device_t *device = NULL; |
131 | 131 | ||
132 | futex_down(&devices_list_futex); |
132 | futex_down(&devices_list_futex); |
133 | 133 | ||
134 | item = (&devices_list)->next; |
134 | item = (&devices_list)->next; |
135 | 135 | ||
136 | while (item != &devices_list) { |
136 | while (item != &devices_list) { |
137 | 137 | ||
138 | device = list_get_instance(item, devmap_device_t, devices); |
138 | device = list_get_instance(item, devmap_device_t, devices); |
139 | if (device->handle == handle) { |
139 | if (device->handle == handle) { |
140 | break; |
140 | break; |
141 | } |
141 | } |
142 | item = item->next; |
142 | item = item->next; |
143 | } |
143 | } |
144 | 144 | ||
145 | if (item == &devices_list) { |
145 | if (item == &devices_list) { |
146 | futex_up(&devices_list_futex); |
146 | futex_up(&devices_list_futex); |
147 | return NULL; |
147 | return NULL; |
148 | } |
148 | } |
149 | 149 | ||
150 | device = list_get_instance(item, devmap_device_t, devices); |
150 | device = list_get_instance(item, devmap_device_t, devices); |
151 | 151 | ||
152 | futex_up(&devices_list_futex); |
152 | futex_up(&devices_list_futex); |
153 | 153 | ||
154 | return device; |
154 | return device; |
155 | } |
155 | } |
156 | 156 | ||
157 | /** |
157 | /** |
158 | * Unregister device and free it. It's assumed that driver's device list is |
158 | * Unregister device and free it. It's assumed that driver's device list is |
159 | * already locked. |
159 | * already locked. |
160 | */ |
160 | */ |
161 | static int devmap_device_unregister_core(devmap_device_t *device) |
161 | static int devmap_device_unregister_core(devmap_device_t *device) |
162 | { |
162 | { |
163 | 163 | ||
164 | list_remove(&(device->devices)); |
164 | list_remove(&(device->devices)); |
165 | list_remove(&(device->driver_devices)); |
165 | list_remove(&(device->driver_devices)); |
166 | 166 | ||
167 | free(device->name); |
167 | free(device->name); |
168 | free(device); |
168 | free(device); |
169 | 169 | ||
170 | 170 | ||
171 | return EOK; |
171 | return EOK; |
172 | } |
172 | } |
173 | 173 | ||
174 | /** |
174 | /** |
175 | * Read info about new driver and add it into linked list of registered |
175 | * Read info about new driver and add it into linked list of registered |
176 | * drivers. |
176 | * drivers. |
177 | */ |
177 | */ |
178 | static void devmap_driver_register(devmap_driver_t **odriver) |
178 | static void devmap_driver_register(devmap_driver_t **odriver) |
179 | { |
179 | { |
180 | size_t name_size; |
180 | size_t name_size; |
181 | ipc_callid_t callid; |
181 | ipc_callid_t callid; |
182 | ipc_call_t call; |
182 | ipc_call_t call; |
183 | devmap_driver_t *driver; |
183 | devmap_driver_t *driver; |
184 | ipc_callid_t iid; |
184 | ipc_callid_t iid; |
185 | ipc_call_t icall; |
185 | ipc_call_t icall; |
186 | 186 | ||
187 | *odriver = NULL; |
187 | *odriver = NULL; |
188 | 188 | ||
189 | iid = async_get_call(&icall); |
189 | iid = async_get_call(&icall); |
190 | 190 | ||
191 | if (IPC_GET_METHOD(icall) != DEVMAP_DRIVER_REGISTER) { |
191 | if (IPC_GET_METHOD(icall) != DEVMAP_DRIVER_REGISTER) { |
192 | ipc_answer_0(iid, EREFUSED); |
192 | ipc_answer_0(iid, EREFUSED); |
193 | return; |
193 | return; |
194 | } |
194 | } |
195 | 195 | ||
196 | if (NULL == |
196 | if (NULL == |
197 | (driver = (devmap_driver_t *)malloc(sizeof(devmap_driver_t)))) { |
197 | (driver = (devmap_driver_t *)malloc(sizeof(devmap_driver_t)))) { |
198 | ipc_answer_0(iid, ENOMEM); |
198 | ipc_answer_0(iid, ENOMEM); |
199 | return; |
199 | return; |
200 | } |
200 | } |
201 | 201 | ||
202 | /* |
202 | /* |
203 | * Get driver name |
203 | * Get driver name |
204 | */ |
204 | */ |
205 | if (!ipc_data_write_receive(&callid, &name_size)) { |
205 | if (!ipc_data_write_receive(&callid, &name_size)) { |
206 | printf("Unexpected request.\n"); |
206 | printf("Unexpected request.\n"); |
207 | free(driver); |
207 | free(driver); |
208 | ipc_answer_0(callid, EREFUSED); |
208 | ipc_answer_0(callid, EREFUSED); |
209 | ipc_answer_0(iid, EREFUSED); |
209 | ipc_answer_0(iid, EREFUSED); |
210 | return; |
210 | return; |
211 | } |
211 | } |
212 | 212 | ||
213 | if (name_size > DEVMAP_NAME_MAXLEN) { |
213 | if (name_size > DEVMAP_NAME_MAXLEN) { |
214 | printf("Too logn name: %u: maximum is %u.\n", name_size, |
214 | printf("Too logn name: %u: maximum is %u.\n", name_size, |
215 | DEVMAP_NAME_MAXLEN); |
215 | DEVMAP_NAME_MAXLEN); |
216 | free(driver); |
216 | free(driver); |
217 | ipc_answer_0(callid, EINVAL); |
217 | ipc_answer_0(callid, EINVAL); |
218 | ipc_answer_0(iid, EREFUSED); |
218 | ipc_answer_0(iid, EREFUSED); |
219 | return; |
219 | return; |
220 | } |
220 | } |
221 | 221 | ||
222 | /* |
222 | /* |
223 | * Allocate buffer for device name. |
223 | * Allocate buffer for device name. |
224 | */ |
224 | */ |
225 | if (NULL == (driver->name = (char *)malloc(name_size + 1))) { |
225 | if (NULL == (driver->name = (char *)malloc(name_size + 1))) { |
226 | printf("Cannot allocate space for driver name.\n"); |
226 | printf("Cannot allocate space for driver name.\n"); |
227 | free(driver); |
227 | free(driver); |
228 | ipc_answer_0(callid, ENOMEM); |
228 | ipc_answer_0(callid, ENOMEM); |
229 | ipc_answer_0(iid, EREFUSED); |
229 | ipc_answer_0(iid, EREFUSED); |
230 | return; |
230 | return; |
231 | } |
231 | } |
232 | 232 | ||
233 | /* |
233 | /* |
234 | * Send confirmation to sender and get data into buffer. |
234 | * Send confirmation to sender and get data into buffer. |
235 | */ |
235 | */ |
236 | if (EOK != ipc_data_write_finalize(callid, driver->name, name_size)) { |
236 | if (EOK != ipc_data_write_finalize(callid, driver->name, name_size)) { |
237 | printf("Cannot read driver name.\n"); |
237 | printf("Cannot read driver name.\n"); |
238 | free(driver->name); |
238 | free(driver->name); |
239 | free(driver); |
239 | free(driver); |
240 | ipc_answer_0(iid, EREFUSED); |
240 | ipc_answer_0(iid, EREFUSED); |
241 | return; |
241 | return; |
242 | } |
242 | } |
243 | 243 | ||
244 | driver->name[name_size] = 0; |
244 | driver->name[name_size] = 0; |
245 | 245 | ||
246 | printf("Read driver name: '%s'.\n", driver->name); |
246 | printf("Read driver name: '%s'.\n", driver->name); |
247 | 247 | ||
248 | /* Initialize futex for list of devices owned by this driver */ |
248 | /* Initialize futex for list of devices owned by this driver */ |
249 | futex_initialize(&(driver->devices_futex), 1); |
249 | futex_initialize(&(driver->devices_futex), 1); |
250 | 250 | ||
251 | /* |
251 | /* |
252 | * Initialize list of asociated devices |
252 | * Initialize list of asociated devices |
253 | */ |
253 | */ |
254 | list_initialize(&(driver->devices)); |
254 | list_initialize(&(driver->devices)); |
255 | 255 | ||
256 | /* |
256 | /* |
257 | * Create connection to the driver |
257 | * Create connection to the driver |
258 | */ |
258 | */ |
259 | callid = async_get_call(&call); |
259 | callid = async_get_call(&call); |
260 | 260 | ||
261 | if (IPC_M_CONNECT_TO_ME != IPC_GET_METHOD(call)) { |
261 | if (IPC_M_CONNECT_TO_ME != IPC_GET_METHOD(call)) { |
262 | printf("DEVMAP: Unexpected method: %u.\n", |
262 | printf("DEVMAP: Unexpected method: %u.\n", |
263 | IPC_GET_METHOD(call)); |
263 | IPC_GET_METHOD(call)); |
264 | ipc_answer_0(callid, ENOTSUP); |
264 | ipc_answer_0(callid, ENOTSUP); |
265 | 265 | ||
266 | free(driver->name); |
266 | free(driver->name); |
267 | free(driver); |
267 | free(driver); |
268 | ipc_answer_0(iid, ENOTSUP); |
268 | ipc_answer_0(iid, ENOTSUP); |
269 | return; |
269 | return; |
270 | } |
270 | } |
271 | 271 | ||
272 | driver->phone = IPC_GET_ARG5(call); |
272 | driver->phone = IPC_GET_ARG5(call); |
273 | 273 | ||
274 | ipc_answer_0(callid, EOK); |
274 | ipc_answer_0(callid, EOK); |
275 | 275 | ||
276 | list_initialize(&(driver->drivers)); |
276 | list_initialize(&(driver->drivers)); |
277 | 277 | ||
278 | futex_down(&drivers_list_futex); |
278 | futex_down(&drivers_list_futex); |
279 | 279 | ||
280 | /* TODO: |
280 | /* TODO: |
281 | * check that no driver with name equal to driver->name is registered |
281 | * check that no driver with name equal to driver->name is registered |
282 | */ |
282 | */ |
283 | 283 | ||
284 | /* |
284 | /* |
285 | * Insert new driver into list of registered drivers |
285 | * Insert new driver into list of registered drivers |
286 | */ |
286 | */ |
287 | list_append(&(driver->drivers), &drivers_list); |
287 | list_append(&(driver->drivers), &drivers_list); |
288 | futex_up(&drivers_list_futex); |
288 | futex_up(&drivers_list_futex); |
289 | 289 | ||
290 | ipc_answer_0(iid, EOK); |
290 | ipc_answer_0(iid, EOK); |
291 | printf("Driver registered.\n"); |
291 | printf("Driver registered.\n"); |
292 | 292 | ||
293 | *odriver = driver; |
293 | *odriver = driver; |
294 | return; |
294 | return; |
295 | } |
295 | } |
296 | 296 | ||
297 | /** Unregister device driver, unregister all its devices and free driver |
297 | /** Unregister device driver, unregister all its devices and free driver |
298 | * structure. |
298 | * structure. |
299 | */ |
299 | */ |
300 | static int devmap_driver_unregister(devmap_driver_t *driver) |
300 | static int devmap_driver_unregister(devmap_driver_t *driver) |
301 | { |
301 | { |
302 | devmap_device_t *device; |
302 | devmap_device_t *device; |
303 | 303 | ||
304 | if (NULL == driver) { |
304 | if (NULL == driver) { |
305 | printf("Error: driver == NULL.\n"); |
305 | printf("Error: driver == NULL.\n"); |
306 | return EEXISTS; |
306 | return EEXISTS; |
307 | } |
307 | } |
308 | 308 | ||
309 | printf("Unregister driver '%s'.\n", driver->name); |
309 | printf("Unregister driver '%s'.\n", driver->name); |
310 | futex_down(&drivers_list_futex); |
310 | futex_down(&drivers_list_futex); |
311 | 311 | ||
312 | ipc_hangup(driver->phone); |
312 | ipc_hangup(driver->phone); |
313 | 313 | ||
314 | /* remove it from list of drivers */ |
314 | /* remove it from list of drivers */ |
315 | list_remove(&(driver->drivers)); |
315 | list_remove(&(driver->drivers)); |
316 | 316 | ||
317 | /* unregister all its devices */ |
317 | /* unregister all its devices */ |
318 | 318 | ||
319 | futex_down(&devices_list_futex); |
319 | futex_down(&devices_list_futex); |
320 | futex_down(&(driver->devices_futex)); |
320 | futex_down(&(driver->devices_futex)); |
321 | 321 | ||
322 | while (!list_empty(&(driver->devices))) { |
322 | while (!list_empty(&(driver->devices))) { |
323 | device = list_get_instance(driver->devices.next, |
323 | device = list_get_instance(driver->devices.next, |
324 | devmap_device_t, driver_devices); |
324 | devmap_device_t, driver_devices); |
325 | printf("Unregister device '%s'.\n", device->name); |
325 | printf("Unregister device '%s'.\n", device->name); |
326 | devmap_device_unregister_core(device); |
326 | devmap_device_unregister_core(device); |
327 | } |
327 | } |
328 | 328 | ||
329 | futex_up(&(driver->devices_futex)); |
329 | futex_up(&(driver->devices_futex)); |
330 | futex_up(&devices_list_futex); |
330 | futex_up(&devices_list_futex); |
331 | futex_up(&drivers_list_futex); |
331 | futex_up(&drivers_list_futex); |
332 | 332 | ||
333 | /* free name and driver */ |
333 | /* free name and driver */ |
334 | if (NULL != driver->name) { |
334 | if (NULL != driver->name) { |
335 | free(driver->name); |
335 | free(driver->name); |
336 | } |
336 | } |
337 | 337 | ||
338 | free(driver); |
338 | free(driver); |
339 | 339 | ||
340 | printf("Driver unregistered.\n"); |
340 | printf("Driver unregistered.\n"); |
341 | 341 | ||
342 | return EOK; |
342 | return EOK; |
343 | } |
343 | } |
344 | 344 | ||
345 | 345 | ||
346 | /** Register instance of device |
346 | /** Register instance of device |
347 | * |
347 | * |
348 | */ |
348 | */ |
349 | static void devmap_device_register(ipc_callid_t iid, ipc_call_t *icall, |
349 | static void devmap_device_register(ipc_callid_t iid, ipc_call_t *icall, |
350 | devmap_driver_t *driver) |
350 | devmap_driver_t *driver) |
351 | { |
351 | { |
352 | ipc_callid_t callid; |
352 | ipc_callid_t callid; |
353 | size_t size; |
353 | size_t size; |
354 | devmap_device_t *device; |
354 | devmap_device_t *device; |
355 | 355 | ||
356 | if (NULL == driver) { |
356 | if (NULL == driver) { |
357 | printf("Invalid driver registration.\n"); |
357 | printf("Invalid driver registration.\n"); |
358 | ipc_answer_0(iid, EREFUSED); |
358 | ipc_answer_0(iid, EREFUSED); |
359 | return; |
359 | return; |
360 | } |
360 | } |
361 | 361 | ||
362 | /* Create new device entry */ |
362 | /* Create new device entry */ |
363 | if (NULL == |
363 | if (NULL == |
364 | (device = (devmap_device_t *)malloc(sizeof(devmap_device_t)))) { |
364 | (device = (devmap_device_t *)malloc(sizeof(devmap_device_t)))) { |
365 | printf("Cannot allocate new device.\n"); |
365 | printf("Cannot allocate new device.\n"); |
366 | ipc_answer_0(iid, ENOMEM); |
366 | ipc_answer_0(iid, ENOMEM); |
367 | return; |
367 | return; |
368 | } |
368 | } |
369 | 369 | ||
370 | /* Get device name */ |
370 | /* Get device name */ |
371 | if (!ipc_data_write_receive(&callid, &size)) { |
371 | if (!ipc_data_write_receive(&callid, &size)) { |
372 | free(device); |
372 | free(device); |
373 | printf("Cannot read device name.\n"); |
373 | printf("Cannot read device name.\n"); |
374 | ipc_answer_0(iid, EREFUSED); |
374 | ipc_answer_0(iid, EREFUSED); |
375 | return; |
375 | return; |
376 | } |
376 | } |
377 | 377 | ||
378 | if (size > DEVMAP_NAME_MAXLEN) { |
378 | if (size > DEVMAP_NAME_MAXLEN) { |
379 | printf("Too long device name: %u.\n", size); |
379 | printf("Too long device name: %u.\n", size); |
380 | free(device); |
380 | free(device); |
381 | ipc_answer_0(callid, EINVAL); |
381 | ipc_answer_0(callid, EINVAL); |
382 | ipc_answer_0(iid, EREFUSED); |
382 | ipc_answer_0(iid, EREFUSED); |
383 | return; |
383 | return; |
384 | } |
384 | } |
385 | 385 | ||
386 | /* +1 for terminating \0 */ |
386 | /* +1 for terminating \0 */ |
387 | device->name = (char *)malloc(size + 1); |
387 | device->name = (char *)malloc(size + 1); |
388 | 388 | ||
389 | if (NULL == device->name) { |
389 | if (NULL == device->name) { |
390 | printf("Cannot read device name.\n"); |
390 | printf("Cannot read device name.\n"); |
391 | free(device); |
391 | free(device); |
392 | ipc_answer_0(callid, ENOMEM); |
392 | ipc_answer_0(callid, ENOMEM); |
393 | ipc_answer_0(iid, EREFUSED); |
393 | ipc_answer_0(iid, EREFUSED); |
394 | return; |
394 | return; |
395 | } |
395 | } |
396 | 396 | ||
397 | ipc_data_write_finalize(callid, device->name, size); |
397 | ipc_data_write_finalize(callid, device->name, size); |
398 | device->name[size] = 0; |
398 | device->name[size] = 0; |
399 | 399 | ||
400 | list_initialize(&(device->devices)); |
400 | list_initialize(&(device->devices)); |
401 | list_initialize(&(device->driver_devices)); |
401 | list_initialize(&(device->driver_devices)); |
402 | 402 | ||
403 | futex_down(&devices_list_futex); |
403 | futex_down(&devices_list_futex); |
404 | 404 | ||
405 | /* Check that device with such name is not already registered */ |
405 | /* Check that device with such name is not already registered */ |
406 | if (NULL != devmap_device_find_name(device->name)) { |
406 | if (NULL != devmap_device_find_name(device->name)) { |
407 | printf("Device '%s' already registered.\n", device->name); |
407 | printf("Device '%s' already registered.\n", device->name); |
408 | futex_up(&devices_list_futex); |
408 | futex_up(&devices_list_futex); |
409 | free(device->name); |
409 | free(device->name); |
410 | free(device); |
410 | free(device); |
411 | ipc_answer_0(iid, EEXISTS); |
411 | ipc_answer_0(iid, EEXISTS); |
412 | return; |
412 | return; |
413 | } |
413 | } |
414 | 414 | ||
415 | /* Get unique device handle */ |
415 | /* Get unique device handle */ |
416 | device->handle = devmap_create_handle(); |
416 | device->handle = devmap_create_handle(); |
417 | 417 | ||
418 | device->driver = driver; |
418 | device->driver = driver; |
419 | 419 | ||
420 | /* Insert device into list of all devices */ |
420 | /* Insert device into list of all devices */ |
421 | list_append(&device->devices, &devices_list); |
421 | list_append(&device->devices, &devices_list); |
422 | 422 | ||
423 | /* Insert device into list of devices that belog to one driver */ |
423 | /* Insert device into list of devices that belog to one driver */ |
424 | futex_down(&device->driver->devices_futex); |
424 | futex_down(&device->driver->devices_futex); |
425 | 425 | ||
426 | list_append(&device->driver_devices, &device->driver->devices); |
426 | list_append(&device->driver_devices, &device->driver->devices); |
427 | 427 | ||
428 | futex_up(&device->driver->devices_futex); |
428 | futex_up(&device->driver->devices_futex); |
429 | futex_up(&devices_list_futex); |
429 | futex_up(&devices_list_futex); |
430 | 430 | ||
431 | printf("Device '%s' registered.\n", device->name); |
431 | printf("Device '%s' registered.\n", device->name); |
432 | ipc_answer_1(iid, EOK, device->handle); |
432 | ipc_answer_1(iid, EOK, device->handle); |
433 | 433 | ||
434 | return; |
434 | return; |
435 | } |
435 | } |
436 | 436 | ||
437 | /** |
437 | /** |
438 | * |
438 | * |
439 | */ |
439 | */ |
440 | static int devmap_device_unregister(ipc_callid_t iid, ipc_call_t *icall, |
440 | static int devmap_device_unregister(ipc_callid_t iid, ipc_call_t *icall, |
441 | devmap_driver_t *driver) |
441 | devmap_driver_t *driver) |
442 | { |
442 | { |
443 | /* TODO */ |
443 | /* TODO */ |
444 | 444 | ||
445 | return EOK; |
445 | return EOK; |
446 | } |
446 | } |
447 | 447 | ||
448 | /** Connect client to the device. |
448 | /** Connect client to the device. |
449 | * Find device driver owning requested device and forward |
449 | * Find device driver owning requested device and forward |
450 | * the message to it. |
450 | * the message to it. |
451 | */ |
451 | */ |
452 | static void devmap_forward(ipc_callid_t callid, ipc_call_t *call) |
452 | static void devmap_forward(ipc_callid_t callid, ipc_call_t *call) |
453 | { |
453 | { |
454 | devmap_device_t *dev; |
454 | devmap_device_t *dev; |
455 | int handle; |
455 | int handle; |
456 | 456 | ||
457 | /* |
457 | /* |
458 | * Get handle from request |
458 | * Get handle from request |
459 | */ |
459 | */ |
460 | handle = IPC_GET_ARG2(*call); |
460 | handle = IPC_GET_ARG2(*call); |
461 | dev = devmap_device_find_handle(handle); |
461 | dev = devmap_device_find_handle(handle); |
462 | 462 | ||
463 | if (NULL == dev) { |
463 | if (NULL == dev) { |
464 | printf("DEVMAP: No registered device with handle %d.\n", |
464 | printf("DEVMAP: No registered device with handle %d.\n", |
465 | handle); |
465 | handle); |
466 | ipc_answer_0(callid, ENOENT); |
466 | ipc_answer_0(callid, ENOENT); |
467 | return; |
467 | return; |
468 | } |
468 | } |
469 | 469 | ||
470 | ipc_forward_fast(callid, dev->driver->phone, (ipcarg_t)(dev->handle), |
470 | ipc_forward_fast(callid, dev->driver->phone, (ipcarg_t)(dev->handle), |
471 | IPC_GET_ARG3(*call), 0, IPC_FF_NONE); |
471 | IPC_GET_ARG3(*call), 0, IPC_FF_NONE); |
472 | return; |
472 | return; |
473 | } |
473 | } |
474 | 474 | ||
475 | /** Find handle for device instance identified by name. |
475 | /** Find handle for device instance identified by name. |
476 | * In answer will be send EOK and device handle in arg1 or a error |
476 | * In answer will be send EOK and device handle in arg1 or a error |
477 | * code from errno.h. |
477 | * code from errno.h. |
478 | */ |
478 | */ |
479 | static void devmap_get_handle(ipc_callid_t iid, ipc_call_t *icall) |
479 | static void devmap_get_handle(ipc_callid_t iid, ipc_call_t *icall) |
480 | { |
480 | { |
481 | char *name = NULL; |
481 | char *name = NULL; |
482 | size_t name_size; |
482 | size_t name_size; |
483 | const devmap_device_t *dev; |
483 | const devmap_device_t *dev; |
484 | ipc_callid_t callid; |
484 | ipc_callid_t callid; |
485 | ipcarg_t retval; |
485 | ipcarg_t retval; |
486 | 486 | ||
487 | 487 | ||
488 | /* |
488 | /* |
489 | * Wait for incoming message with device name (but do not |
489 | * Wait for incoming message with device name (but do not |
490 | * read the name itself until the buffer is allocated). |
490 | * read the name itself until the buffer is allocated). |
491 | */ |
491 | */ |
492 | if (!ipc_data_write_receive(&callid, &name_size)) { |
492 | if (!ipc_data_write_receive(&callid, &name_size)) { |
493 | ipc_answer_0(callid, EREFUSED); |
493 | ipc_answer_0(callid, EREFUSED); |
494 | ipc_answer_0(iid, EREFUSED); |
494 | ipc_answer_0(iid, EREFUSED); |
495 | return; |
495 | return; |
496 | } |
496 | } |
497 | 497 | ||
498 | if (name_size > DEVMAP_NAME_MAXLEN) { |
498 | if (name_size > DEVMAP_NAME_MAXLEN) { |
499 | ipc_answer_0(callid, EINVAL); |
499 | ipc_answer_0(callid, EINVAL); |
500 | ipc_answer_0(iid, EREFUSED); |
500 | ipc_answer_0(iid, EREFUSED); |
501 | return; |
501 | return; |
502 | } |
502 | } |
503 | 503 | ||
504 | /* |
504 | /* |
505 | * Allocate buffer for device name. |
505 | * Allocate buffer for device name. |
506 | */ |
506 | */ |
507 | if (NULL == (name = (char *)malloc(name_size))) { |
507 | if (NULL == (name = (char *)malloc(name_size))) { |
508 | ipc_answer_0(callid, ENOMEM); |
508 | ipc_answer_0(callid, ENOMEM); |
509 | ipc_answer_0(iid, EREFUSED); |
509 | ipc_answer_0(iid, EREFUSED); |
510 | return; |
510 | return; |
511 | } |
511 | } |
512 | 512 | ||
513 | /* |
513 | /* |
514 | * Send confirmation to sender and get data into buffer. |
514 | * Send confirmation to sender and get data into buffer. |
515 | */ |
515 | */ |
516 | if (EOK != (retval = ipc_data_write_finalize(callid, name, |
516 | if (EOK != (retval = ipc_data_write_finalize(callid, name, |
517 | name_size))) { |
517 | name_size))) { |
518 | ipc_answer_0(iid, EREFUSED); |
518 | ipc_answer_0(iid, EREFUSED); |
519 | return; |
519 | return; |
520 | } |
520 | } |
521 | 521 | ||
522 | /* |
522 | /* |
523 | * Find device name in linked list of known devices. |
523 | * Find device name in linked list of known devices. |
524 | */ |
524 | */ |
525 | dev = devmap_device_find_name(name); |
525 | dev = devmap_device_find_name(name); |
526 | 526 | ||
527 | /* |
527 | /* |
528 | * Device was not found. |
528 | * Device was not found. |
529 | */ |
529 | */ |
530 | if (NULL == dev) { |
530 | if (NULL == dev) { |
531 | printf("DEVMAP: device %s has not been registered.\n", name); |
531 | printf("DEVMAP: device %s has not been registered.\n", name); |
532 | ipc_answer_0(iid, ENOENT); |
532 | ipc_answer_0(iid, ENOENT); |
533 | return; |
533 | return; |
534 | } |
534 | } |
535 | 535 | ||
536 | printf("DEVMAP: device %s has handler %d.\n", name, dev->handle); |
536 | printf("DEVMAP: device %s has handler %d.\n", name, dev->handle); |
537 | 537 | ||
538 | ipc_answer_1(iid, EOK, dev->handle); |
538 | ipc_answer_1(iid, EOK, dev->handle); |
539 | 539 | ||
540 | return; |
540 | return; |
541 | } |
541 | } |
542 | 542 | ||
543 | /** Find name of device identified by id and send it to caller. |
543 | /** Find name of device identified by id and send it to caller. |
544 | * |
544 | * |
545 | */ |
545 | */ |
546 | static void devmap_get_name(ipc_callid_t iid, ipc_call_t *icall) |
546 | static void devmap_get_name(ipc_callid_t iid, ipc_call_t *icall) |
547 | { |
547 | { |
548 | const devmap_device_t *device; |
548 | const devmap_device_t *device; |
549 | size_t name_size; |
549 | size_t name_size; |
550 | 550 | ||
551 | device = devmap_device_find_handle(IPC_GET_ARG1(*icall)); |
551 | device = devmap_device_find_handle(IPC_GET_ARG1(*icall)); |
552 | 552 | ||
553 | /* |
553 | /* |
554 | * Device not found. |
554 | * Device not found. |
555 | */ |
555 | */ |
556 | if (NULL == device) { |
556 | if (NULL == device) { |
557 | ipc_answer_0(iid, ENOENT); |
557 | ipc_answer_0(iid, ENOENT); |
558 | return; |
558 | return; |
559 | } |
559 | } |
560 | 560 | ||
561 | ipc_answer_0(iid, EOK); |
561 | ipc_answer_0(iid, EOK); |
562 | 562 | ||
563 | name_size = strlen(device->name); |
563 | name_size = strlen(device->name); |
564 | 564 | ||
565 | 565 | ||
566 | /* FIXME: |
566 | /* FIXME: |
567 | we have no channel from DEVMAP to client -> |
567 | we have no channel from DEVMAP to client -> |
568 | sending must be initiated by client |
568 | sending must be initiated by client |
569 | 569 | ||
570 | int rc = ipc_data_write_send(phone, device->name, name_size); |
570 | int rc = ipc_data_write_send(phone, device->name, name_size); |
571 | if (rc != EOK) { |
571 | if (rc != EOK) { |
572 | async_wait_for(req, NULL); |
572 | async_wait_for(req, NULL); |
573 | return rc; |
573 | return rc; |
574 | } |
574 | } |
575 | */ |
575 | */ |
576 | /* TODO: send name in response */ |
576 | /* TODO: send name in response */ |
577 | 577 | ||
578 | return; |
578 | return; |
579 | } |
579 | } |
580 | 580 | ||
581 | /** Handle connection with device driver. |
581 | /** Handle connection with device driver. |
582 | * |
582 | * |
583 | */ |
583 | */ |
584 | static void |
584 | static void |
585 | devmap_connection_driver(ipc_callid_t iid, ipc_call_t *icall) |
585 | devmap_connection_driver(ipc_callid_t iid, ipc_call_t *icall) |
586 | { |
586 | { |
587 | ipc_callid_t callid; |
587 | ipc_callid_t callid; |
588 | ipc_call_t call; |
588 | ipc_call_t call; |
589 | bool cont = true; |
589 | bool cont = true; |
590 | devmap_driver_t *driver = NULL; |
590 | devmap_driver_t *driver = NULL; |
591 | 591 | ||
592 | ipc_answer_0(iid, EOK); |
592 | ipc_answer_0(iid, EOK); |
593 | 593 | ||
594 | devmap_driver_register(&driver); |
594 | devmap_driver_register(&driver); |
595 | 595 | ||
596 | if (NULL == driver) { |
596 | if (NULL == driver) { |
597 | printf("DEVMAP: driver registration failed.\n"); |
597 | printf("DEVMAP: driver registration failed.\n"); |
598 | return; |
598 | return; |
599 | } |
599 | } |
600 | 600 | ||
601 | while (cont) { |
601 | while (cont) { |
602 | callid = async_get_call(&call); |
602 | callid = async_get_call(&call); |
603 | 603 | ||
604 | switch (IPC_GET_METHOD(call)) { |
604 | switch (IPC_GET_METHOD(call)) { |
605 | case IPC_M_PHONE_HUNGUP: |
605 | case IPC_M_PHONE_HUNGUP: |
606 | printf("DEVMAP: connection hung up.\n"); |
606 | printf("DEVMAP: connection hung up.\n"); |
607 | cont = false; |
607 | cont = false; |
608 | continue; /* Exit thread */ |
608 | continue; /* Exit thread */ |
609 | case DEVMAP_DRIVER_UNREGISTER: |
609 | case DEVMAP_DRIVER_UNREGISTER: |
610 | printf("DEVMAP: unregister driver.\n"); |
610 | printf("DEVMAP: unregister driver.\n"); |
611 | if (NULL == driver) { |
611 | if (NULL == driver) { |
612 | printf("DEVMAP: driver was not registered!\n"); |
612 | printf("DEVMAP: driver was not registered!\n"); |
613 | ipc_answer_0(callid, ENOENT); |
613 | ipc_answer_0(callid, ENOENT); |
614 | } else { |
614 | } else { |
615 | ipc_answer_0(callid, EOK); |
615 | ipc_answer_0(callid, EOK); |
616 | } |
616 | } |
617 | break; |
617 | break; |
618 | case DEVMAP_DEVICE_REGISTER: |
618 | case DEVMAP_DEVICE_REGISTER: |
619 | /* Register one instance of device */ |
619 | /* Register one instance of device */ |
620 | devmap_device_register(callid, &call, driver); |
620 | devmap_device_register(callid, &call, driver); |
621 | break; |
621 | break; |
622 | case DEVMAP_DEVICE_UNREGISTER: |
622 | case DEVMAP_DEVICE_UNREGISTER: |
623 | /* Remove instance of device identified by handler */ |
623 | /* Remove instance of device identified by handler */ |
624 | devmap_device_unregister(callid, &call, driver); |
624 | devmap_device_unregister(callid, &call, driver); |
625 | break; |
625 | break; |
626 | case DEVMAP_DEVICE_GET_HANDLE: |
626 | case DEVMAP_DEVICE_GET_HANDLE: |
627 | devmap_get_handle(callid, &call); |
627 | devmap_get_handle(callid, &call); |
628 | break; |
628 | break; |
629 | case DEVMAP_DEVICE_GET_NAME: |
629 | case DEVMAP_DEVICE_GET_NAME: |
630 | devmap_get_handle(callid, &call); |
630 | devmap_get_handle(callid, &call); |
631 | break; |
631 | break; |
632 | default: |
632 | default: |
633 | if (!(callid & IPC_CALLID_NOTIFICATION)) { |
633 | if (!(callid & IPC_CALLID_NOTIFICATION)) { |
634 | ipc_answer_0(callid, ENOENT); |
634 | ipc_answer_0(callid, ENOENT); |
635 | } |
635 | } |
636 | } |
636 | } |
637 | } |
637 | } |
638 | 638 | ||
639 | if (NULL != driver) { |
639 | if (NULL != driver) { |
640 | /* |
640 | /* |
641 | * Unregister the device driver and all its devices. |
641 | * Unregister the device driver and all its devices. |
642 | */ |
642 | */ |
643 | devmap_driver_unregister(driver); |
643 | devmap_driver_unregister(driver); |
644 | driver = NULL; |
644 | driver = NULL; |
645 | } |
645 | } |
646 | 646 | ||
647 | } |
647 | } |
648 | 648 | ||
649 | /** Handle connection with device client. |
649 | /** Handle connection with device client. |
650 | * |
650 | * |
651 | */ |
651 | */ |
652 | static void |
652 | static void |
653 | devmap_connection_client(ipc_callid_t iid, ipc_call_t *icall) |
653 | devmap_connection_client(ipc_callid_t iid, ipc_call_t *icall) |
654 | { |
654 | { |
655 | ipc_callid_t callid; |
655 | ipc_callid_t callid; |
656 | ipc_call_t call; |
656 | ipc_call_t call; |
657 | bool cont = true; |
657 | bool cont = true; |
658 | 658 | ||
659 | ipc_answer_0(iid, EOK); /* Accept connection */ |
659 | ipc_answer_0(iid, EOK); /* Accept connection */ |
660 | 660 | ||
661 | while (cont) { |
661 | while (cont) { |
662 | callid = async_get_call(&call); |
662 | callid = async_get_call(&call); |
663 | 663 | ||
664 | switch (IPC_GET_METHOD(call)) { |
664 | switch (IPC_GET_METHOD(call)) { |
665 | case IPC_M_PHONE_HUNGUP: |
665 | case IPC_M_PHONE_HUNGUP: |
666 | printf("DEVMAP: connection hung up.\n"); |
666 | printf("DEVMAP: connection hung up.\n"); |
667 | cont = false; |
667 | cont = false; |
668 | continue; /* Exit thread */ |
668 | continue; /* Exit thread */ |
669 | 669 | ||
670 | case DEVMAP_DEVICE_GET_HANDLE: |
670 | case DEVMAP_DEVICE_GET_HANDLE: |
671 | devmap_get_handle(callid, &call); |
671 | devmap_get_handle(callid, &call); |
672 | 672 | ||
673 | break; |
673 | break; |
674 | case DEVMAP_DEVICE_GET_NAME: |
674 | case DEVMAP_DEVICE_GET_NAME: |
675 | /* TODO */ |
675 | /* TODO */ |
676 | devmap_get_name(callid, &call); |
676 | devmap_get_name(callid, &call); |
677 | break; |
677 | break; |
678 | default: |
678 | default: |
679 | if (!(callid & IPC_CALLID_NOTIFICATION)) { |
679 | if (!(callid & IPC_CALLID_NOTIFICATION)) { |
680 | ipc_answer_0(callid, ENOENT); |
680 | ipc_answer_0(callid, ENOENT); |
681 | } |
681 | } |
682 | } |
682 | } |
683 | } |
683 | } |
684 | } |
684 | } |
685 | 685 | ||
686 | /** Function for handling connections to devmap |
686 | /** Function for handling connections to devmap |
687 | * |
687 | * |
688 | */ |
688 | */ |
689 | static void |
689 | static void |
690 | devmap_connection(ipc_callid_t iid, ipc_call_t *icall) |
690 | devmap_connection(ipc_callid_t iid, ipc_call_t *icall) |
691 | { |
691 | { |
692 | 692 | ||
693 | printf("DEVMAP: new connection.\n"); |
693 | printf("DEVMAP: new connection.\n"); |
694 | 694 | ||
695 | /* Select interface */ |
695 | /* Select interface */ |
696 | switch ((ipcarg_t)(IPC_GET_ARG1(*icall))) { |
696 | switch ((ipcarg_t)(IPC_GET_ARG1(*icall))) { |
697 | case DEVMAP_DRIVER: |
697 | case DEVMAP_DRIVER: |
698 | devmap_connection_driver(iid, icall); |
698 | devmap_connection_driver(iid, icall); |
699 | break; |
699 | break; |
700 | case DEVMAP_CLIENT: |
700 | case DEVMAP_CLIENT: |
701 | devmap_connection_client(iid, icall); |
701 | devmap_connection_client(iid, icall); |
702 | break; |
702 | break; |
703 | case DEVMAP_CONNECT_TO_DEVICE: |
703 | case DEVMAP_CONNECT_TO_DEVICE: |
704 | /* Connect client to selected device */ |
704 | /* Connect client to selected device */ |
705 | printf("DEVMAP: connect to device %d.\n", |
705 | printf("DEVMAP: connect to device %d.\n", |
706 | IPC_GET_ARG2(*icall)); |
706 | IPC_GET_ARG2(*icall)); |
707 | devmap_forward(iid, icall); |
707 | devmap_forward(iid, icall); |
708 | break; |
708 | break; |
709 | default: |
709 | default: |
710 | ipc_answer_0(iid, ENOENT); /* No such interface */ |
710 | ipc_answer_0(iid, ENOENT); /* No such interface */ |
711 | printf("DEVMAP: Unknown interface %u.\n", |
711 | printf("DEVMAP: Unknown interface %u.\n", |
712 | (ipcarg_t)(IPC_GET_ARG1(*icall))); |
712 | (ipcarg_t)(IPC_GET_ARG1(*icall))); |
713 | } |
713 | } |
714 | 714 | ||
715 | /* Cleanup */ |
715 | /* Cleanup */ |
716 | 716 | ||
717 | printf("DEVMAP: connection closed.\n"); |
717 | printf("DEVMAP: connection closed.\n"); |
718 | return; |
718 | return; |
719 | } |
719 | } |
720 | 720 | ||
721 | /** |
721 | /** |
722 | * |
722 | * |
723 | */ |
723 | */ |
724 | int main(int argc, char *argv[]) |
724 | int main(int argc, char *argv[]) |
725 | { |
725 | { |
726 | ipcarg_t phonead; |
726 | ipcarg_t phonead; |
727 | 727 | ||
728 | printf("DEVMAP: HelenOS device mapper.\n"); |
728 | printf("DEVMAP: HelenOS device mapper.\n"); |
729 | 729 | ||
730 | if (devmap_init() != 0) { |
730 | if (devmap_init() != 0) { |
731 | printf("Error while initializing DEVMAP service.\n"); |
731 | printf("Error while initializing DEVMAP service.\n"); |
732 | return -1; |
732 | return -1; |
733 | } |
733 | } |
734 | 734 | ||
735 | /* Set a handler of incomming connections */ |
735 | /* Set a handler of incomming connections */ |
736 | async_set_client_connection(devmap_connection); |
736 | async_set_client_connection(devmap_connection); |
737 | 737 | ||
738 | /* Register device mapper at naming service */ |
738 | /* Register device mapper at naming service */ |
739 | if (ipc_connect_to_me(PHONE_NS, SERVICE_DEVMAP, 0, 0, &phonead) != 0) |
739 | if (ipc_connect_to_me(PHONE_NS, SERVICE_DEVMAP, 0, 0, &phonead) != 0) |
740 | return -1; |
740 | return -1; |
741 | 741 | ||
742 | async_manager(); |
742 | async_manager(); |
743 | /* Never reached */ |
743 | /* Never reached */ |
744 | return 0; |
744 | return 0; |
745 | } |
745 | } |
746 | 746 | ||
747 | /** |
747 | /** |
748 | * @} |
748 | * @} |
749 | */ |
749 | */ |
750 | 750 | ||
751 | 751 |