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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 | /** Unregister device and free it. Its assumed that driver's device list |
158 | * Unregister device and free it. It's assumed that driver's device list is |
158 | * is already locked. |
159 | * already locked. |
159 | * |
- | |
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 | /** Read info about new driver and add it into linked list of registered drivers. |
175 | * Read info about new driver and add it into linked list of registered |
- | 176 | * drivers. |
|
175 | */ |
177 | */ |
176 | static void devmap_driver_register(devmap_driver_t **odriver) |
178 | static void devmap_driver_register(devmap_driver_t **odriver) |
177 | { |
179 | { |
178 | size_t name_size; |
180 | size_t name_size; |
179 | ipc_callid_t callid; |
181 | ipc_callid_t callid; |
180 | ipc_call_t call; |
182 | ipc_call_t call; |
181 | devmap_driver_t *driver; |
183 | devmap_driver_t *driver; |
182 | ipc_callid_t iid; |
184 | ipc_callid_t iid; |
183 | ipc_call_t icall; |
185 | ipc_call_t icall; |
184 | 186 | ||
185 | *odriver = NULL; |
187 | *odriver = NULL; |
186 | 188 | ||
187 | iid = async_get_call(&icall); |
189 | iid = async_get_call(&icall); |
188 | 190 | ||
189 | if (IPC_GET_METHOD(icall) != DEVMAP_DRIVER_REGISTER) { |
191 | if (IPC_GET_METHOD(icall) != DEVMAP_DRIVER_REGISTER) { |
190 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
192 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
191 | return; |
193 | return; |
192 | } |
194 | } |
193 | 195 | ||
- | 196 | if (NULL == |
|
194 | if (NULL == (driver = (devmap_driver_t *)malloc(sizeof(devmap_driver_t)))) { |
197 | (driver = (devmap_driver_t *)malloc(sizeof(devmap_driver_t)))) { |
195 | ipc_answer_fast(iid, ENOMEM, 0, 0); |
198 | ipc_answer_fast(iid, ENOMEM, 0, 0); |
196 | return; |
199 | return; |
197 | } |
200 | } |
198 | 201 | ||
199 | /* |
202 | /* |
200 | * Get driver name |
203 | * Get driver name |
201 | */ |
204 | */ |
202 | if (!ipc_data_receive(&callid, &call, NULL, &name_size)) { |
205 | if (!ipc_data_receive(&callid, &call, NULL, &name_size)) { |
203 | printf("Unexpected request: %u.\n", IPC_GET_METHOD(call)); |
206 | printf("Unexpected request: %u.\n", IPC_GET_METHOD(call)); |
204 | free(driver); |
207 | free(driver); |
205 | ipc_answer_fast(callid, EREFUSED, 0, 0); |
208 | ipc_answer_fast(callid, EREFUSED, 0, 0); |
206 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
209 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
207 | return; |
210 | return; |
208 | } |
211 | } |
209 | 212 | ||
210 | if (name_size > DEVMAP_NAME_MAXLEN) { |
213 | if (name_size > DEVMAP_NAME_MAXLEN) { |
211 | printf("Too logn name: %u: maximum is %u.\n", name_size, DEVMAP_NAME_MAXLEN); |
214 | printf("Too logn name: %u: maximum is %u.\n", name_size, |
- | 215 | DEVMAP_NAME_MAXLEN); |
|
212 | free(driver); |
216 | free(driver); |
213 | ipc_answer_fast(callid, EINVAL, 0, 0); |
217 | ipc_answer_fast(callid, EINVAL, 0, 0); |
214 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
218 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
215 | return; |
219 | return; |
216 | } |
220 | } |
217 | 221 | ||
218 | /* |
222 | /* |
219 | * Allocate buffer for device name. |
223 | * Allocate buffer for device name. |
220 | */ |
224 | */ |
221 | if (NULL == (driver->name = (char *)malloc(name_size + 1))) { |
225 | if (NULL == (driver->name = (char *)malloc(name_size + 1))) { |
222 | printf("Cannot allocate space for driver name.\n"); |
226 | printf("Cannot allocate space for driver name.\n"); |
223 | free(driver); |
227 | free(driver); |
224 | ipc_answer_fast(callid, ENOMEM, 0, 0); |
228 | ipc_answer_fast(callid, ENOMEM, 0, 0); |
225 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
229 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
226 | return; |
230 | return; |
227 | } |
231 | } |
228 | 232 | ||
229 | /* |
233 | /* |
230 | * Send confirmation to sender and get data into buffer. |
234 | * Send confirmation to sender and get data into buffer. |
231 | */ |
235 | */ |
232 | if (EOK != ipc_data_deliver(callid, &call, driver->name, name_size)) { |
236 | if (EOK != ipc_data_deliver(callid, &call, driver->name, name_size)) { |
233 | printf("Cannot read driver name.\n"); |
237 | printf("Cannot read driver name.\n"); |
234 | free(driver->name); |
238 | free(driver->name); |
235 | free(driver); |
239 | free(driver); |
236 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
240 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
237 | return; |
241 | return; |
238 | } |
242 | } |
239 | 243 | ||
240 | driver->name[name_size] = 0; |
244 | driver->name[name_size] = 0; |
241 | 245 | ||
242 | printf("Read driver name: '%s'.\n", driver->name); |
246 | printf("Read driver name: '%s'.\n", driver->name); |
243 | 247 | ||
244 | /* Initialize futex for list of devices owned by this driver */ |
248 | /* Initialize futex for list of devices owned by this driver */ |
245 | futex_initialize(&(driver->devices_futex) ,1); |
249 | futex_initialize(&(driver->devices_futex), 1); |
246 | 250 | ||
247 | /* |
251 | /* |
248 | * Initialize list of asociated devices |
252 | * Initialize list of asociated devices |
249 | */ |
253 | */ |
250 | list_initialize(&(driver->devices)); |
254 | list_initialize(&(driver->devices)); |
251 | 255 | ||
252 | /* |
256 | /* |
253 | * Create connection to the driver |
257 | * Create connection to the driver |
254 | */ |
258 | */ |
255 | callid = async_get_call(&call); |
259 | callid = async_get_call(&call); |
256 | 260 | ||
257 | if (IPC_M_CONNECT_TO_ME != IPC_GET_METHOD(call)) { |
261 | if (IPC_M_CONNECT_TO_ME != IPC_GET_METHOD(call)) { |
258 | printf("DevMap: Unexpected method: %u.\n", \ |
262 | printf("DevMap: Unexpected method: %u.\n", |
259 | IPC_GET_METHOD(call)); |
263 | IPC_GET_METHOD(call)); |
260 | ipc_answer_fast(callid, ENOTSUP, 0, 0); |
264 | ipc_answer_fast(callid, ENOTSUP, 0, 0); |
261 | 265 | ||
262 | free(driver->name); |
266 | free(driver->name); |
263 | free(driver); |
267 | free(driver); |
264 | ipc_answer_fast(iid, ENOTSUP, 0, 0); |
268 | ipc_answer_fast(iid, ENOTSUP, 0, 0); |
265 | return; |
269 | return; |
266 | } |
270 | } |
267 | 271 | ||
268 | driver->phone = IPC_GET_ARG3(call); |
272 | driver->phone = IPC_GET_ARG3(call); |
269 | 273 | ||
270 | ipc_answer_fast(callid, EOK, 0, 0); |
274 | ipc_answer_fast(callid, EOK, 0, 0); |
271 | 275 | ||
272 | list_initialize(&(driver->drivers)); |
276 | list_initialize(&(driver->drivers)); |
273 | 277 | ||
274 | futex_down(&drivers_list_futex); |
278 | futex_down(&drivers_list_futex); |
275 | 279 | ||
- | 280 | /* TODO: |
|
276 | /* TODO: check that no driver with name equals to driver->name is registered */ |
281 | * check that no driver with name equal to driver->name is registered |
- | 282 | */ |
|
277 | 283 | ||
278 | /* |
284 | /* |
279 | * Insert new driver into list of registered drivers |
285 | * Insert new driver into list of registered drivers |
280 | */ |
286 | */ |
281 | list_append(&(driver->drivers), &drivers_list); |
287 | list_append(&(driver->drivers), &drivers_list); |
282 | futex_up(&drivers_list_futex); |
288 | futex_up(&drivers_list_futex); |
283 | 289 | ||
284 | ipc_answer_fast(iid, EOK, 0, 0); |
290 | ipc_answer_fast(iid, EOK, 0, 0); |
285 | printf("Driver registered.\n"); |
291 | printf("Driver registered.\n"); |
286 | 292 | ||
287 | *odriver = driver; |
293 | *odriver = driver; |
288 | return; |
294 | return; |
289 | } |
295 | } |
290 | 296 | ||
291 | /** Unregister device driver, unregister all its devices and free driver structure. |
297 | /** Unregister device driver, unregister all its devices and free driver structure. |
292 | * |
298 | * |
293 | */ |
299 | */ |
294 | static int devmap_driver_unregister(devmap_driver_t *driver) |
300 | static int devmap_driver_unregister(devmap_driver_t *driver) |
295 | { |
301 | { |
296 | devmap_device_t *device; |
302 | devmap_device_t *device; |
297 | 303 | ||
298 | if (NULL == driver) { |
304 | if (NULL == driver) { |
299 | printf("Error: driver == NULL.\n"); |
305 | printf("Error: driver == NULL.\n"); |
300 | return EEXISTS; |
306 | return EEXISTS; |
301 | } |
307 | } |
302 | 308 | ||
303 | printf("Unregister driver '%s'.\n", driver->name); |
309 | printf("Unregister driver '%s'.\n", driver->name); |
304 | futex_down(&drivers_list_futex); |
310 | futex_down(&drivers_list_futex); |
305 | 311 | ||
306 | ipc_hangup(driver->phone); |
312 | ipc_hangup(driver->phone); |
307 | 313 | ||
308 | /* remove it from list of drivers */ |
314 | /* remove it from list of drivers */ |
309 | list_remove(&(driver->drivers)); |
315 | list_remove(&(driver->drivers)); |
310 | 316 | ||
311 | /* unregister all its devices */ |
317 | /* unregister all its devices */ |
312 | 318 | ||
313 | futex_down(&devices_list_futex); |
319 | futex_down(&devices_list_futex); |
314 | futex_down(&(driver->devices_futex)); |
320 | futex_down(&(driver->devices_futex)); |
315 | 321 | ||
316 | while (!list_empty(&(driver->devices))) { |
322 | while (!list_empty(&(driver->devices))) { |
317 | device = list_get_instance(driver->devices.next, devmap_device_t, driver_devices); |
323 | device = list_get_instance(driver->devices.next, |
- | 324 | devmap_device_t, driver_devices); |
|
318 | printf("Unregister device '%s'.\n", device->name); |
325 | printf("Unregister device '%s'.\n", device->name); |
319 | devmap_device_unregister_core(device); |
326 | devmap_device_unregister_core(device); |
320 | } |
327 | } |
321 | 328 | ||
322 | futex_up(&(driver->devices_futex)); |
329 | futex_up(&(driver->devices_futex)); |
323 | futex_up(&devices_list_futex); |
330 | futex_up(&devices_list_futex); |
324 | futex_up(&drivers_list_futex); |
331 | futex_up(&drivers_list_futex); |
325 | 332 | ||
326 | /* free name and driver */ |
333 | /* free name and driver */ |
327 | if (NULL != driver->name) { |
334 | if (NULL != driver->name) { |
328 | free(driver->name); |
335 | free(driver->name); |
329 | } |
336 | } |
330 | 337 | ||
331 | free(driver); |
338 | free(driver); |
332 | 339 | ||
333 | printf("Driver unregistered.\n"); |
340 | printf("Driver unregistered.\n"); |
334 | 341 | ||
335 | return EOK; |
342 | return EOK; |
336 | } |
343 | } |
337 | 344 | ||
338 | 345 | ||
339 | /** Register instance of device |
346 | /** Register instance of device |
340 | * |
347 | * |
341 | */ |
348 | */ |
342 | 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, |
343 | devmap_driver_t *driver) |
350 | devmap_driver_t *driver) |
344 | { |
351 | { |
345 | ipc_callid_t callid; |
352 | ipc_callid_t callid; |
346 | ipc_call_t call; |
353 | ipc_call_t call; |
347 | size_t size; |
354 | size_t size; |
348 | devmap_device_t *device; |
355 | devmap_device_t *device; |
349 | 356 | ||
350 | if (NULL == driver) { |
357 | if (NULL == driver) { |
351 | printf("Invalid driver registration.\n"); |
358 | printf("Invalid driver registration.\n"); |
352 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
359 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
353 | return; |
360 | return; |
354 | } |
361 | } |
355 | 362 | ||
356 | /* Create new device entry */ |
363 | /* Create new device entry */ |
- | 364 | if (NULL == |
|
357 | if (NULL == (device = (devmap_device_t *)malloc(sizeof(devmap_device_t)))) { |
365 | (device = (devmap_device_t *)malloc(sizeof(devmap_device_t)))) { |
358 | printf("Cannot allocate new device.\n"); |
366 | printf("Cannot allocate new device.\n"); |
359 | ipc_answer_fast(iid, ENOMEM, 0, 0); |
367 | ipc_answer_fast(iid, ENOMEM, 0, 0); |
360 | return; |
368 | return; |
361 | } |
369 | } |
362 | 370 | ||
363 | /* Get device name */ |
371 | /* Get device name */ |
364 | if (!ipc_data_receive(&callid, &call, NULL, &size)) { |
372 | if (!ipc_data_receive(&callid, &call, NULL, &size)) { |
365 | free(device); |
373 | free(device); |
366 | printf("Cannot read device name.\n"); |
374 | printf("Cannot read device name.\n"); |
367 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
375 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
368 | return; |
376 | return; |
369 | } |
377 | } |
370 | 378 | ||
371 | if (size > DEVMAP_NAME_MAXLEN) { |
379 | if (size > DEVMAP_NAME_MAXLEN) { |
372 | printf("Too long device name: %u.\n", size); |
380 | printf("Too long device name: %u.\n", size); |
373 | free(device); |
381 | free(device); |
374 | ipc_answer_fast(callid, EINVAL, 0, 0); |
382 | ipc_answer_fast(callid, EINVAL, 0, 0); |
375 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
383 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
376 | return; |
384 | return; |
377 | } |
385 | } |
378 | 386 | ||
379 | /* +1 for terminating \0 */ |
387 | /* +1 for terminating \0 */ |
380 | device->name = (char *)malloc(size + 1); |
388 | device->name = (char *)malloc(size + 1); |
381 | 389 | ||
382 | if (NULL == device->name) { |
390 | if (NULL == device->name) { |
383 | printf("Cannot read device name.\n"); |
391 | printf("Cannot read device name.\n"); |
384 | free(device); |
392 | free(device); |
385 | ipc_answer_fast(callid, ENOMEM, 0, 0); |
393 | ipc_answer_fast(callid, ENOMEM, 0, 0); |
386 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
394 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
387 | return; |
395 | return; |
388 | } |
396 | } |
389 | 397 | ||
390 | ipc_data_deliver(callid, &call, device->name, size); |
398 | ipc_data_deliver(callid, &call, device->name, size); |
391 | device->name[size] = 0; |
399 | device->name[size] = 0; |
392 | 400 | ||
393 | list_initialize(&(device->devices)); |
401 | list_initialize(&(device->devices)); |
394 | list_initialize(&(device->driver_devices)); |
402 | list_initialize(&(device->driver_devices)); |
395 | 403 | ||
396 | futex_down(&devices_list_futex); |
404 | futex_down(&devices_list_futex); |
397 | 405 | ||
398 | /* Check that device with such name is not already registered */ |
406 | /* Check that device with such name is not already registered */ |
399 | if (NULL != devmap_device_find_name(device->name)) { |
407 | if (NULL != devmap_device_find_name(device->name)) { |
400 | printf("Device '%s' already registered.\n", device->name); |
408 | printf("Device '%s' already registered.\n", device->name); |
401 | futex_up(&devices_list_futex); |
409 | futex_up(&devices_list_futex); |
402 | free(device->name); |
410 | free(device->name); |
403 | free(device); |
411 | free(device); |
404 | ipc_answer_fast(iid, EEXISTS, 0, 0); |
412 | ipc_answer_fast(iid, EEXISTS, 0, 0); |
405 | return; |
413 | return; |
406 | } |
414 | } |
407 | 415 | ||
408 | /* Get unique device handle */ |
416 | /* Get unique device handle */ |
409 | device->handle = devmap_create_handle(); |
417 | device->handle = devmap_create_handle(); |
410 | 418 | ||
411 | device->driver = driver; |
419 | device->driver = driver; |
412 | 420 | ||
413 | /* Insert device into list of all devices */ |
421 | /* Insert device into list of all devices */ |
414 | list_append(&(device->devices), &devices_list); |
422 | list_append(&(device->devices), &devices_list); |
415 | 423 | ||
416 | /* Insert device into list of devices that belog to one driver */ |
424 | /* Insert device into list of devices that belog to one driver */ |
417 | futex_down(&(device->driver->devices_futex)); |
425 | futex_down(&(device->driver->devices_futex)); |
418 | 426 | ||
419 | list_append(&(device->driver_devices), &(device->driver->devices)); |
427 | list_append(&(device->driver_devices), &(device->driver->devices)); |
420 | 428 | ||
421 | futex_up(&(device->driver->devices_futex)); |
429 | futex_up(&(device->driver->devices_futex)); |
422 | futex_up(&devices_list_futex); |
430 | futex_up(&devices_list_futex); |
423 | 431 | ||
424 | printf("Device '%s' registered.\n", device->name); |
432 | printf("Device '%s' registered.\n", device->name); |
425 | ipc_answer_fast(iid, EOK, device->handle, 0); |
433 | ipc_answer_fast(iid, EOK, device->handle, 0); |
426 | 434 | ||
427 | return; |
435 | return; |
428 | } |
436 | } |
429 | 437 | ||
430 | /** |
438 | /** |
431 | * |
439 | * |
432 | */ |
440 | */ |
433 | static int devmap_device_unregister(ipc_callid_t iid, ipc_call_t *icall, |
441 | static int devmap_device_unregister(ipc_callid_t iid, ipc_call_t *icall, |
434 | devmap_driver_t *driver) |
442 | devmap_driver_t *driver) |
435 | { |
443 | { |
436 | /* TODO */ |
444 | /* TODO */ |
437 | 445 | ||
438 | return EOK; |
446 | return EOK; |
439 | } |
447 | } |
440 | 448 | ||
441 | /** Connect client to the device. |
449 | /** Connect client to the device. |
442 | * Find device driver owning requested device and forward |
450 | * Find device driver owning requested device and forward |
443 | * the message to it. |
451 | * the message to it. |
444 | * |
452 | * |
445 | * |
453 | * |
446 | */ |
454 | */ |
447 | static void devmap_forward(ipc_callid_t callid, ipc_call_t *call) |
455 | static void devmap_forward(ipc_callid_t callid, ipc_call_t *call) |
448 | { |
456 | { |
449 | devmap_device_t *dev; |
457 | devmap_device_t *dev; |
450 | int handle; |
458 | int handle; |
451 | 459 | ||
452 | /* |
460 | /* |
453 | * Get handle from request |
461 | * Get handle from request |
454 | */ |
462 | */ |
455 | handle = IPC_GET_ARG1(*call); |
463 | handle = IPC_GET_ARG1(*call); |
456 | dev = devmap_device_find_handle(handle); |
464 | dev = devmap_device_find_handle(handle); |
457 | 465 | ||
458 | if (NULL == dev) { |
466 | if (NULL == dev) { |
459 | printf("DevMap: No registered device with handle %d.\n", handle); |
467 | printf("DevMap: No registered device with handle %d.\n", |
- | 468 | handle); |
|
460 | ipc_answer_fast(callid, ENOENT, 0, 0); |
469 | ipc_answer_fast(callid, ENOENT, 0, 0); |
461 | return; |
470 | return; |
462 | } |
471 | } |
463 | 472 | ||
464 | /* FIXME: is this correct method how to pass argument on forwarding ?*/ |
473 | /* FIXME: is this correct method how to pass argument on forwarding ?*/ |
465 | ipc_forward_fast(callid, dev->driver->phone, (ipcarg_t)(dev->handle), 0); |
474 | ipc_forward_fast(callid, dev->driver->phone, (ipcarg_t)(dev->handle), |
- | 475 | 0); |
|
466 | return; |
476 | return; |
467 | } |
477 | } |
468 | 478 | ||
469 | /** Find handle for device instance identified by name. |
479 | /** Find handle for device instance identified by name. |
470 | * In answer will be send EOK and device handle in arg1 or a error |
480 | * In answer will be send EOK and device handle in arg1 or a error |
471 | * code from errno.h. |
481 | * code from errno.h. |
472 | */ |
482 | */ |
473 | static void devmap_get_handle(ipc_callid_t iid, ipc_call_t *icall) |
483 | static void devmap_get_handle(ipc_callid_t iid, ipc_call_t *icall) |
474 | { |
484 | { |
475 | char *name = NULL; |
485 | char *name = NULL; |
476 | size_t name_size; |
486 | size_t name_size; |
477 | const devmap_device_t *dev; |
487 | const devmap_device_t *dev; |
478 | ipc_callid_t callid; |
488 | ipc_callid_t callid; |
479 | ipc_call_t call; |
489 | ipc_call_t call; |
480 | ipcarg_t retval; |
490 | ipcarg_t retval; |
481 | 491 | ||
482 | 492 | ||
483 | /* |
493 | /* |
484 | * Wait for incoming message with device name (but do not |
494 | * Wait for incoming message with device name (but do not |
485 | * read the name itself until the buffer is allocated). |
495 | * read the name itself until the buffer is allocated). |
486 | */ |
496 | */ |
487 | if (!ipc_data_receive(&callid, &call, NULL, &name_size)) { |
497 | if (!ipc_data_receive(&callid, &call, NULL, &name_size)) { |
488 | ipc_answer_fast(callid, EREFUSED, 0, 0); |
498 | ipc_answer_fast(callid, EREFUSED, 0, 0); |
489 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
499 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
490 | return; |
500 | return; |
491 | } |
501 | } |
492 | 502 | ||
493 | if (name_size > DEVMAP_NAME_MAXLEN) { |
503 | if (name_size > DEVMAP_NAME_MAXLEN) { |
494 | ipc_answer_fast(callid, EINVAL, 0, 0); |
504 | ipc_answer_fast(callid, EINVAL, 0, 0); |
495 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
505 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
496 | return; |
506 | return; |
497 | } |
507 | } |
498 | 508 | ||
499 | /* |
509 | /* |
500 | * Allocate buffer for device name. |
510 | * Allocate buffer for device name. |
501 | */ |
511 | */ |
502 | if (NULL == (name = (char *)malloc(name_size))) { |
512 | if (NULL == (name = (char *)malloc(name_size))) { |
503 | ipc_answer_fast(callid, ENOMEM, 0, 0); |
513 | ipc_answer_fast(callid, ENOMEM, 0, 0); |
504 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
514 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
505 | return; |
515 | return; |
506 | } |
516 | } |
507 | 517 | ||
508 | /* |
518 | /* |
509 | * Send confirmation to sender and get data into buffer. |
519 | * Send confirmation to sender and get data into buffer. |
510 | */ |
520 | */ |
511 | if (EOK != (retval = ipc_data_deliver(callid, &call, name, name_size))) { |
521 | if (EOK != (retval = ipc_data_deliver(callid, &call, name, |
- | 522 | name_size))) { |
|
512 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
523 | ipc_answer_fast(iid, EREFUSED, 0, 0); |
513 | return; |
524 | return; |
514 | } |
525 | } |
515 | 526 | ||
516 | /* |
527 | /* |
517 | * Find device name in linked list of known devices. |
528 | * Find device name in linked list of known devices. |
518 | */ |
529 | */ |
519 | dev = devmap_device_find_name(name); |
530 | dev = devmap_device_find_name(name); |
520 | 531 | ||
521 | /* |
532 | /* |
522 | * Device was not found. |
533 | * Device was not found. |
523 | */ |
534 | */ |
524 | if (NULL == dev) { |
535 | if (NULL == dev) { |
525 | printf("DevMap: device %s has not been registered.\n", name); |
536 | printf("DevMap: device %s has not been registered.\n", name); |
526 | ipc_answer_fast(iid, ENOENT, 0, 0); |
537 | ipc_answer_fast(iid, ENOENT, 0, 0); |
527 | return; |
538 | return; |
528 | } |
539 | } |
529 | 540 | ||
530 | printf("DevMap: device %s has handler %d.\n", name, dev->handle); |
541 | printf("DevMap: device %s has handler %d.\n", name, dev->handle); |
531 | 542 | ||
532 | ipc_answer_fast(iid, EOK, dev->handle, 0); |
543 | ipc_answer_fast(iid, EOK, dev->handle, 0); |
533 | 544 | ||
534 | return; |
545 | return; |
535 | } |
546 | } |
536 | 547 | ||
537 | /** Find name of device identified by id and send it to caller. |
548 | /** Find name of device identified by id and send it to caller. |
538 | * |
549 | * |
539 | */ |
550 | */ |
540 | static void devmap_get_name(ipc_callid_t iid, ipc_call_t *icall) |
551 | static void devmap_get_name(ipc_callid_t iid, ipc_call_t *icall) |
541 | { |
552 | { |
542 | const devmap_device_t *device; |
553 | const devmap_device_t *device; |
543 | size_t name_size; |
554 | size_t name_size; |
544 | 555 | ||
545 | device = devmap_device_find_handle(IPC_GET_ARG1(*icall)); |
556 | device = devmap_device_find_handle(IPC_GET_ARG1(*icall)); |
546 | 557 | ||
547 | /* |
558 | /* |
548 | * Device not found. |
559 | * Device not found. |
549 | */ |
560 | */ |
550 | if (NULL == device) { |
561 | if (NULL == device) { |
551 | ipc_answer_fast(iid, ENOENT, 0, 0); |
562 | ipc_answer_fast(iid, ENOENT, 0, 0); |
552 | return; |
563 | return; |
553 | } |
564 | } |
554 | 565 | ||
555 | ipc_answer_fast(iid, EOK, 0, 0); |
566 | ipc_answer_fast(iid, EOK, 0, 0); |
556 | 567 | ||
557 | name_size = strlen(device->name); |
568 | name_size = strlen(device->name); |
558 | 569 | ||
559 | 570 | ||
560 | /* FIXME: |
571 | /* FIXME: |
561 | we have no channel from DevMap to client -> |
572 | we have no channel from DevMap to client -> |
562 | sending must be initiated by client |
573 | sending must be initiated by client |
563 | 574 | ||
564 | int rc = ipc_data_send(phone, device->name, name_size); |
575 | int rc = ipc_data_send(phone, device->name, name_size); |
565 | if (rc != EOK) { |
576 | if (rc != EOK) { |
566 | async_wait_for(req, NULL); |
577 | async_wait_for(req, NULL); |
567 | return rc; |
578 | return rc; |
568 | } |
579 | } |
569 | */ |
580 | */ |
570 | /* TODO: send name in response */ |
581 | /* TODO: send name in response */ |
571 | 582 | ||
572 | return; |
583 | return; |
573 | } |
584 | } |
574 | 585 | ||
575 | /** Handle connection with device driver. |
586 | /** Handle connection with device driver. |
576 | * |
587 | * |
577 | */ |
588 | */ |
578 | static void |
589 | static void |
579 | devmap_connection_driver(ipc_callid_t iid, ipc_call_t *icall) |
590 | devmap_connection_driver(ipc_callid_t iid, ipc_call_t *icall) |
580 | { |
591 | { |
581 | ipc_callid_t callid; |
592 | ipc_callid_t callid; |
582 | ipc_call_t call; |
593 | ipc_call_t call; |
583 | bool cont = true; |
594 | bool cont = true; |
584 | devmap_driver_t *driver = NULL; |
595 | devmap_driver_t *driver = NULL; |
585 | 596 | ||
586 | ipc_answer_fast(iid, EOK, 0, 0); |
597 | ipc_answer_fast(iid, EOK, 0, 0); |
587 | 598 | ||
588 | devmap_driver_register(&driver); |
599 | devmap_driver_register(&driver); |
589 | 600 | ||
590 | if (NULL == driver) { |
601 | if (NULL == driver) { |
591 | printf("DevMap: driver registration failed.\n"); |
602 | printf("DevMap: driver registration failed.\n"); |
592 | return; |
603 | return; |
593 | } |
604 | } |
594 | 605 | ||
595 | while (cont) { |
606 | while (cont) { |
596 | callid = async_get_call(&call); |
607 | callid = async_get_call(&call); |
597 | 608 | ||
598 | switch (IPC_GET_METHOD(call)) { |
609 | switch (IPC_GET_METHOD(call)) { |
599 | case IPC_M_PHONE_HUNGUP: |
610 | case IPC_M_PHONE_HUNGUP: |
600 | printf("DevMap: connection hung up.\n"); |
611 | printf("DevMap: connection hung up.\n"); |
601 | cont = false; |
612 | cont = false; |
602 | continue; /* Exit thread */ |
613 | continue; /* Exit thread */ |
603 | case DEVMAP_DRIVER_UNREGISTER: |
614 | case DEVMAP_DRIVER_UNREGISTER: |
604 | printf("DevMap: unregister driver.\n"); |
615 | printf("DevMap: unregister driver.\n"); |
605 | if (NULL == driver) { |
616 | if (NULL == driver) { |
606 | printf("DevMap: driver was not registered!\n"); |
617 | printf("DevMap: driver was not registered!\n"); |
607 | ipc_answer_fast(callid, ENOENT, 0, 0); |
618 | ipc_answer_fast(callid, ENOENT, 0, 0); |
608 | } else { |
619 | } else { |
609 | ipc_answer_fast(callid, EOK, 0, 0); |
620 | ipc_answer_fast(callid, EOK, 0, 0); |
610 | } |
621 | } |
611 | break; |
622 | break; |
612 | case DEVMAP_DEVICE_REGISTER: |
623 | case DEVMAP_DEVICE_REGISTER: |
613 | /* Register one instance of device */ |
624 | /* Register one instance of device */ |
614 | devmap_device_register(callid, &call, driver); |
625 | devmap_device_register(callid, &call, driver); |
615 | break; |
626 | break; |
616 | case DEVMAP_DEVICE_UNREGISTER: |
627 | case DEVMAP_DEVICE_UNREGISTER: |
617 | /* Remove instance of device identified by handler */ |
628 | /* Remove instance of device identified by handler */ |
618 | devmap_device_unregister(callid, &call, driver); |
629 | devmap_device_unregister(callid, &call, driver); |
619 | break; |
630 | break; |
620 | case DEVMAP_DEVICE_GET_HANDLE: |
631 | case DEVMAP_DEVICE_GET_HANDLE: |
621 | devmap_get_handle(callid, &call); |
632 | devmap_get_handle(callid, &call); |
622 | break; |
633 | break; |
623 | case DEVMAP_DEVICE_GET_NAME: |
634 | case DEVMAP_DEVICE_GET_NAME: |
624 | devmap_get_handle(callid, &call); |
635 | devmap_get_handle(callid, &call); |
625 | break; |
636 | break; |
626 | default: |
637 | default: |
627 | if (!(callid & IPC_CALLID_NOTIFICATION)) { |
638 | if (!(callid & IPC_CALLID_NOTIFICATION)) { |
628 | ipc_answer_fast(callid, ENOENT, 0, 0); |
639 | ipc_answer_fast(callid, ENOENT, 0, 0); |
629 | } |
640 | } |
630 | } |
641 | } |
631 | } |
642 | } |
632 | 643 | ||
633 | if (NULL != driver) { |
644 | if (NULL != driver) { |
634 | /* |
645 | /* |
635 | * Unregister the device driver and all its devices. |
646 | * Unregister the device driver and all its devices. |
636 | */ |
647 | */ |
637 | devmap_driver_unregister(driver); |
648 | devmap_driver_unregister(driver); |
638 | driver = NULL; |
649 | driver = NULL; |
639 | } |
650 | } |
640 | 651 | ||
641 | } |
652 | } |
642 | 653 | ||
643 | /** Handle connection with device client. |
654 | /** Handle connection with device client. |
644 | * |
655 | * |
645 | */ |
656 | */ |
646 | static void |
657 | static void |
647 | devmap_connection_client(ipc_callid_t iid, ipc_call_t *icall) |
658 | devmap_connection_client(ipc_callid_t iid, ipc_call_t *icall) |
648 | { |
659 | { |
649 | ipc_callid_t callid; |
660 | ipc_callid_t callid; |
650 | ipc_call_t call; |
661 | ipc_call_t call; |
651 | bool cont = true; |
662 | bool cont = true; |
652 | 663 | ||
653 | ipc_answer_fast(iid, EOK, 0, 0); /* Accept connection */ |
664 | ipc_answer_fast(iid, EOK, 0, 0); /* Accept connection */ |
654 | 665 | ||
655 | while (cont) { |
666 | while (cont) { |
656 | callid = async_get_call(&call); |
667 | callid = async_get_call(&call); |
657 | 668 | ||
658 | switch (IPC_GET_METHOD(call)) { |
669 | switch (IPC_GET_METHOD(call)) { |
659 | case IPC_M_PHONE_HUNGUP: |
670 | case IPC_M_PHONE_HUNGUP: |
660 | printf("DevMap: connection hung up.\n"); |
671 | printf("DevMap: connection hung up.\n"); |
661 | cont = false; |
672 | cont = false; |
662 | continue; /* Exit thread */ |
673 | continue; /* Exit thread */ |
663 | 674 | ||
664 | case DEVMAP_DEVICE_CONNECT_ME_TO: |
675 | case DEVMAP_DEVICE_CONNECT_ME_TO: |
665 | /* Connect client to selected device */ |
676 | /* Connect client to selected device */ |
666 | printf("DevMap: connect to device %d.\n", IPC_GET_ARG1(call)); |
677 | printf("DevMap: connect to device %d.\n", |
- | 678 | IPC_GET_ARG1(call)); |
|
667 | devmap_forward(callid, &call); |
679 | devmap_forward(callid, &call); |
668 | break; |
680 | break; |
669 | 681 | ||
670 | case DEVMAP_DEVICE_GET_HANDLE: |
682 | case DEVMAP_DEVICE_GET_HANDLE: |
671 | devmap_get_handle(callid, &call); |
683 | devmap_get_handle(callid, &call); |
672 | 684 | ||
673 | break; |
685 | break; |
674 | case DEVMAP_DEVICE_GET_NAME: |
686 | case DEVMAP_DEVICE_GET_NAME: |
675 | /* TODO */ |
687 | /* TODO */ |
676 | devmap_get_name(callid, &call); |
688 | devmap_get_name(callid, &call); |
677 | break; |
689 | break; |
678 | default: |
690 | default: |
679 | if (!(callid & IPC_CALLID_NOTIFICATION)) { |
691 | if (!(callid & IPC_CALLID_NOTIFICATION)) { |
680 | ipc_answer_fast(callid, ENOENT, 0, 0); |
692 | ipc_answer_fast(callid, ENOENT, 0, 0); |
681 | } |
693 | } |
682 | } |
694 | } |
683 | } |
695 | } |
684 | } |
696 | } |
685 | 697 | ||
686 | /** Function for handling connections to devmap |
698 | /** Function for handling connections to devmap |
687 | * |
699 | * |
688 | */ |
700 | */ |
689 | static void |
701 | static void |
690 | devmap_connection(ipc_callid_t iid, ipc_call_t *icall) |
702 | devmap_connection(ipc_callid_t iid, ipc_call_t *icall) |
691 | { |
703 | { |
692 | 704 | ||
693 | printf("DevMap: new connection.\n"); |
705 | printf("DevMap: new connection.\n"); |
694 | 706 | ||
695 | /* Select interface */ |
707 | /* Select interface */ |
696 | switch ((ipcarg_t)(IPC_GET_ARG1(*icall))) { |
708 | switch ((ipcarg_t)(IPC_GET_ARG1(*icall))) { |
697 | case DEVMAP_DRIVER: |
709 | case DEVMAP_DRIVER: |
698 | devmap_connection_driver(iid, icall); |
710 | devmap_connection_driver(iid, icall); |
699 | break; |
711 | break; |
700 | case DEVMAP_CLIENT: |
712 | case DEVMAP_CLIENT: |
701 | devmap_connection_client(iid, icall); |
713 | devmap_connection_client(iid, icall); |
702 | break; |
714 | break; |
703 | default: |
715 | default: |
704 | ipc_answer_fast(iid, ENOENT, 0, 0); /* No such interface */ |
716 | ipc_answer_fast(iid, ENOENT, 0, 0); /* No such interface */ |
705 | printf("DevMap: Unknown interface %u.\n", \ |
717 | printf("DevMap: Unknown interface %u.\n", |
706 | (ipcarg_t)(IPC_GET_ARG1(*icall))); |
718 | (ipcarg_t)(IPC_GET_ARG1(*icall))); |
707 | } |
719 | } |
708 | 720 | ||
709 | /* Cleanup */ |
721 | /* Cleanup */ |
710 | 722 | ||
711 | printf("DevMap: connection closed.\n"); |
723 | printf("DevMap: connection closed.\n"); |
712 | return; |
724 | return; |
713 | } |
725 | } |
714 | 726 | ||
715 | /** |
727 | /** |
716 | * |
728 | * |
717 | */ |
729 | */ |
718 | int main(int argc, char *argv[]) |
730 | int main(int argc, char *argv[]) |
719 | { |
731 | { |
720 | ipcarg_t phonead; |
732 | ipcarg_t phonead; |
721 | 733 | ||
722 | printf("DevMap: HelenOS device mapper.\n"); |
734 | printf("DevMap: HelenOS device mapper.\n"); |
723 | 735 | ||
724 | if (devmap_init() != 0) { |
736 | if (devmap_init() != 0) { |
725 | printf("Error while initializing DevMap service.\n"); |
737 | printf("Error while initializing DevMap service.\n"); |
726 | return -1; |
738 | return -1; |
727 | } |
739 | } |
728 | 740 | ||
729 | /* Set a handler of incomming connections */ |
741 | /* Set a handler of incomming connections */ |
730 | async_set_client_connection(devmap_connection); |
742 | async_set_client_connection(devmap_connection); |
731 | 743 | ||
732 | /* Register device mapper at naming service */ |
744 | /* Register device mapper at naming service */ |
733 | if (ipc_connect_to_me(PHONE_NS, SERVICE_DEVMAP, 0, &phonead) != 0) |
745 | if (ipc_connect_to_me(PHONE_NS, SERVICE_DEVMAP, 0, &phonead) != 0) |
734 | return -1; |
746 | return -1; |
735 | 747 | ||
736 | async_manager(); |
748 | async_manager(); |
737 | /* Never reached */ |
749 | /* Never reached */ |
738 | return 0; |
750 | return 0; |
739 | } |
751 | } |
740 | 752 | ||
741 | /** |
753 | /** |
742 | * @} |
754 | * @} |
743 | */ |
755 | */ |
744 | 756 | ||
745 | 757 |