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Commit | Line | Data |
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8d4f9d0e | 1 | /* |
85447060 MK |
2 | * Siano core API module |
3 | * | |
4 | * This file contains implementation for the interface to sms core component | |
5 | * | |
6 | * author: Anatoly Greenblat | |
8d4f9d0e | 7 | * |
85447060 | 8 | * Copyright (c), 2005-2008 Siano Mobile Silicon, Inc. |
8d4f9d0e ST |
9 | * |
10 | * This program is free software; you can redistribute it and/or modify | |
85447060 MK |
11 | * it under the terms of the GNU General Public License version 3 as |
12 | * published by the Free Software Foundation; | |
8d4f9d0e | 13 | * |
85447060 MK |
14 | * Software distributed under the License is distributed on an "AS IS" |
15 | * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. | |
8d4f9d0e | 16 | * |
85447060 | 17 | * See the GNU General Public License for more details. |
8d4f9d0e ST |
18 | * |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | */ | |
23 | ||
2e5c1ec8 MK |
24 | #include <linux/kernel.h> |
25 | #include <linux/init.h> | |
26 | #include <linux/module.h> | |
27 | #include <linux/moduleparam.h> | |
28 | #include <linux/dma-mapping.h> | |
29 | #include <linux/delay.h> | |
30 | #include <asm/io.h> | |
31 | ||
2e5c1ec8 MK |
32 | #include <linux/firmware.h> |
33 | ||
34 | #include "smscoreapi.h" | |
2e5c1ec8 | 35 | |
f17407a8 MK |
36 | #define PERROR(fmt, args...) printk( KERN_ERR "smscore error: line %d- %s(): " fmt,__LINE__, __func__, ## args) |
37 | ||
38 | #ifdef SMSCORE_DEBUG | |
39 | ||
40 | #undef PWARNING | |
41 | # define PWARNING(fmt, args...) printk( KERN_INFO "smscore warning: line %d- %s(): " fmt,__LINE__, __func__, ## args) | |
42 | #undef PDEBUG /* undef it, just in case */ | |
43 | # define PDEBUG(fmt, args...) printk( KERN_INFO "smscore - %s(): " fmt, __func__, ## args) | |
44 | ||
45 | #else /*SMSCORE_DEBUG*/ | |
46 | ||
47 | #define PDEBUG(fmt, args...) | |
48 | #define PWARNING(fmt, args...) | |
49 | ||
50 | #endif | |
51 | ||
52 | ||
2e5c1ec8 MK |
53 | typedef struct _smscore_device_notifyee |
54 | { | |
55 | struct list_head entry; | |
56 | hotplug_t hotplug; | |
57 | } smscore_device_notifyee_t; | |
58 | ||
f17407a8 MK |
59 | typedef struct _smscore_subclient |
60 | { | |
61 | struct list_head entry; | |
62 | int id; | |
63 | int data_type; | |
64 | } smscore_idlist_t; | |
65 | ||
2e5c1ec8 MK |
66 | typedef struct _smscore_client |
67 | { | |
68 | struct list_head entry; | |
69 | smscore_device_t *coredev; | |
2e5c1ec8 | 70 | void *context; |
f17407a8 | 71 | struct list_head idlist; |
2e5c1ec8 MK |
72 | onresponse_t onresponse_handler; |
73 | onremove_t onremove_handler; | |
74 | } *psmscore_client_t; | |
75 | ||
2e5c1ec8 | 76 | |
2e5c1ec8 MK |
77 | |
78 | typedef struct _smscore_device | |
79 | { | |
80 | struct list_head entry; | |
81 | ||
82 | struct list_head clients; | |
83 | struct list_head subclients; | |
84 | spinlock_t clientslock; | |
85 | ||
86 | struct list_head buffers; | |
87 | spinlock_t bufferslock; | |
88 | int num_buffers; | |
89 | ||
90 | void *common_buffer; | |
91 | int common_buffer_size; | |
92 | dma_addr_t common_buffer_phys; | |
93 | ||
94 | void *context; | |
95 | struct device *device; | |
96 | ||
97 | char devpath[32]; | |
98 | unsigned long device_flags; | |
99 | ||
100 | setmode_t setmode_handler; | |
101 | detectmode_t detectmode_handler; | |
102 | sendrequest_t sendrequest_handler; | |
103 | preload_t preload_handler; | |
104 | postload_t postload_handler; | |
105 | ||
106 | int mode, modes_supported; | |
107 | ||
108 | struct completion version_ex_done, data_download_done, trigger_done; | |
109 | struct completion init_device_done, reload_start_done, resume_done; | |
110 | } *psmscore_device_t; | |
111 | ||
112 | typedef struct _smscore_registry_entry | |
113 | { | |
114 | struct list_head entry; | |
115 | char devpath[32]; | |
116 | int mode; | |
f17407a8 | 117 | sms_device_type_st type; |
2e5c1ec8 MK |
118 | } smscore_registry_entry_t; |
119 | ||
120 | struct list_head g_smscore_notifyees; | |
121 | struct list_head g_smscore_devices; | |
122 | kmutex_t g_smscore_deviceslock; | |
123 | ||
124 | struct list_head g_smscore_registry; | |
125 | kmutex_t g_smscore_registrylock; | |
126 | ||
127 | static int default_mode = 1; | |
f17407a8 | 128 | |
2e5c1ec8 MK |
129 | module_param(default_mode, int, 0644); |
130 | MODULE_PARM_DESC(default_mode, "default firmware id (device mode)"); | |
131 | ||
f17407a8 | 132 | static smscore_registry_entry_t *smscore_find_registry ( char *devpath ) |
2e5c1ec8 MK |
133 | { |
134 | smscore_registry_entry_t *entry; | |
135 | struct list_head *next; | |
136 | ||
137 | kmutex_lock(&g_smscore_registrylock); | |
2e5c1ec8 MK |
138 | for (next = g_smscore_registry.next; next != &g_smscore_registry; next = next->next) |
139 | { | |
140 | entry = (smscore_registry_entry_t *) next; | |
2e5c1ec8 MK |
141 | if (!strcmp(entry->devpath, devpath)) |
142 | { | |
143 | kmutex_unlock(&g_smscore_registrylock); | |
f17407a8 | 144 | return entry; |
2e5c1ec8 MK |
145 | } |
146 | } | |
2e5c1ec8 MK |
147 | entry = (smscore_registry_entry_t *) kmalloc(sizeof(smscore_registry_entry_t), GFP_KERNEL); |
148 | if (entry) | |
149 | { | |
150 | entry->mode = default_mode; | |
151 | strcpy(entry->devpath, devpath); | |
2e5c1ec8 MK |
152 | list_add(&entry->entry, &g_smscore_registry); |
153 | } | |
f17407a8 MK |
154 | else |
155 | printk ( KERN_ERR "%s failed to create smscore_registry.\n", __func__ ); | |
2e5c1ec8 | 156 | kmutex_unlock(&g_smscore_registrylock); |
f17407a8 MK |
157 | return entry; |
158 | } | |
2e5c1ec8 | 159 | |
f17407a8 MK |
160 | int smscore_registry_getmode ( char *devpath ) |
161 | { | |
162 | smscore_registry_entry_t *entry; | |
163 | ||
164 | entry = smscore_find_registry ( devpath ); | |
165 | if ( entry ) | |
166 | { | |
167 | return entry->mode; | |
168 | } | |
169 | else | |
170 | { | |
171 | printk ( KERN_ERR "%s No registry found.\n", __func__ ); | |
172 | } | |
2e5c1ec8 MK |
173 | return default_mode; |
174 | } | |
175 | ||
f17407a8 | 176 | sms_device_type_st smscore_registry_gettype ( char *devpath ) |
2e5c1ec8 MK |
177 | { |
178 | smscore_registry_entry_t *entry; | |
2e5c1ec8 | 179 | |
f17407a8 MK |
180 | entry = smscore_find_registry ( devpath ); |
181 | if ( entry ) | |
182 | { | |
183 | return entry->type; | |
184 | } | |
185 | else | |
186 | { | |
187 | printk ( KERN_ERR "%s No registry found.\n", __func__ ); | |
188 | } | |
189 | return -1; | |
190 | } | |
2e5c1ec8 | 191 | |
f17407a8 | 192 | void smscore_registry_setmode ( char *devpath, int mode ) |
2e5c1ec8 | 193 | { |
f17407a8 | 194 | smscore_registry_entry_t *entry; |
2e5c1ec8 | 195 | |
f17407a8 MK |
196 | entry = smscore_find_registry ( devpath ); |
197 | if ( entry ) | |
2e5c1ec8 MK |
198 | { |
199 | entry->mode = mode; | |
f17407a8 MK |
200 | } |
201 | else | |
202 | { | |
203 | printk ( KERN_ERR "%s No registry found.\n", __func__ ); | |
2e5c1ec8 MK |
204 | } |
205 | } | |
206 | ||
f17407a8 MK |
207 | void smscore_registry_settype ( char *devpath, sms_device_type_st type ) |
208 | { | |
209 | smscore_registry_entry_t *entry; | |
210 | ||
211 | entry = smscore_find_registry ( devpath ); | |
212 | if ( entry ) | |
213 | { | |
214 | entry->type = type; | |
215 | } | |
216 | else | |
217 | { | |
218 | printk ( KERN_ERR "%s No registry found.\n", __func__ ); | |
219 | } | |
2e5c1ec8 MK |
220 | } |
221 | ||
222 | ||
f17407a8 | 223 | |
a83ccdd6 MK |
224 | void list_add_locked(struct list_head *new, struct list_head *head, |
225 | spinlock_t *lock) | |
2e5c1ec8 MK |
226 | { |
227 | unsigned long flags; | |
228 | ||
229 | spin_lock_irqsave(lock, flags); | |
230 | ||
231 | list_add(new, head); | |
232 | ||
233 | spin_unlock_irqrestore(lock, flags); | |
234 | } | |
235 | ||
236 | /** | |
237 | * register a client callback that called when device plugged in/unplugged | |
238 | * NOTE: if devices exist callback is called immediately for each device | |
239 | * | |
240 | * @param hotplug callback | |
241 | * | |
242 | * @return 0 on success, <0 on error. | |
243 | */ | |
244 | int smscore_register_hotplug(hotplug_t hotplug) | |
245 | { | |
246 | smscore_device_notifyee_t *notifyee; | |
247 | struct list_head *next, *first; | |
248 | int rc = 0; | |
249 | ||
250 | kmutex_lock(&g_smscore_deviceslock); | |
251 | ||
252 | notifyee = kmalloc(sizeof(smscore_device_notifyee_t), GFP_KERNEL); | |
253 | if (notifyee) | |
254 | { | |
255 | // now notify callback about existing devices | |
256 | first = &g_smscore_devices; | |
257 | for (next = first->next; next != first && !rc; next = next->next) | |
258 | { | |
259 | smscore_device_t *coredev = (smscore_device_t *) next; | |
260 | rc = hotplug(coredev, coredev->device, 1); | |
261 | } | |
262 | ||
263 | if (rc >= 0) | |
264 | { | |
265 | notifyee->hotplug = hotplug; | |
266 | list_add(¬ifyee->entry, &g_smscore_notifyees); | |
267 | } | |
268 | else | |
269 | kfree(notifyee); | |
270 | } | |
271 | else | |
272 | rc = -ENOMEM; | |
273 | ||
274 | kmutex_unlock(&g_smscore_deviceslock); | |
275 | ||
276 | return rc; | |
277 | } | |
278 | ||
279 | /** | |
280 | * unregister a client callback that called when device plugged in/unplugged | |
281 | * | |
282 | * @param hotplug callback | |
283 | * | |
284 | */ | |
285 | void smscore_unregister_hotplug(hotplug_t hotplug) | |
286 | { | |
287 | struct list_head *next, *first; | |
288 | ||
289 | kmutex_lock(&g_smscore_deviceslock); | |
290 | ||
291 | first = &g_smscore_notifyees; | |
292 | ||
293 | for (next = first->next; next != first;) | |
294 | { | |
295 | smscore_device_notifyee_t *notifyee = (smscore_device_notifyee_t *) next; | |
296 | next = next->next; | |
297 | ||
298 | if (notifyee->hotplug == hotplug) | |
299 | { | |
300 | list_del(¬ifyee->entry); | |
301 | kfree(notifyee); | |
302 | } | |
303 | } | |
304 | ||
305 | kmutex_unlock(&g_smscore_deviceslock); | |
306 | } | |
307 | ||
308 | void smscore_notify_clients(smscore_device_t *coredev) | |
309 | { | |
a83ccdd6 | 310 | smscore_client_t *client; |
2e5c1ec8 MK |
311 | |
312 | // the client must call smscore_unregister_client from remove handler | |
313 | while (!list_empty(&coredev->clients)) | |
314 | { | |
315 | client = (smscore_client_t *) coredev->clients.next; | |
316 | client->onremove_handler(client->context); | |
317 | } | |
318 | } | |
319 | ||
320 | int smscore_notify_callbacks(smscore_device_t *coredev, struct device *device, int arrival) | |
321 | { | |
322 | struct list_head *next, *first; | |
323 | int rc = 0; | |
324 | ||
325 | // note: must be called under g_deviceslock | |
326 | ||
327 | first = &g_smscore_notifyees; | |
328 | ||
329 | for (next = first->next; next != first; next = next->next) | |
330 | { | |
331 | rc = ((smscore_device_notifyee_t *) next)->hotplug(coredev, device, arrival); | |
332 | if (rc < 0) | |
333 | break; | |
334 | } | |
335 | ||
336 | return rc; | |
337 | } | |
338 | ||
a83ccdd6 MK |
339 | smscore_buffer_t *smscore_createbuffer(u8 *buffer, void *common_buffer, |
340 | dma_addr_t common_buffer_phys) | |
2e5c1ec8 MK |
341 | { |
342 | smscore_buffer_t *cb = kmalloc(sizeof(smscore_buffer_t), GFP_KERNEL); | |
343 | if (!cb) | |
344 | { | |
18658117 | 345 | printk(KERN_INFO "%s kmalloc(...) failed\n", __func__); |
2e5c1ec8 MK |
346 | return NULL; |
347 | } | |
348 | ||
349 | cb->p = buffer; | |
494d24c5 | 350 | cb->offset_in_common = buffer - (u8 *) common_buffer; |
2e5c1ec8 MK |
351 | cb->phys = common_buffer_phys + cb->offset_in_common; |
352 | ||
353 | return cb; | |
354 | } | |
355 | ||
356 | /** | |
357 | * creates coredev object for a device, prepares buffers, creates buffer mappings, notifies | |
358 | * registered hotplugs about new device. | |
359 | * | |
360 | * @param params device pointer to struct with device specific parameters and handlers | |
361 | * @param coredev pointer to a value that receives created coredev object | |
362 | * | |
363 | * @return 0 on success, <0 on error. | |
364 | */ | |
365 | int smscore_register_device(smsdevice_params_t *params, smscore_device_t **coredev) | |
366 | { | |
a83ccdd6 | 367 | smscore_device_t *dev; |
2e5c1ec8 MK |
368 | u8 *buffer; |
369 | ||
370 | dev = kzalloc(sizeof(smscore_device_t), GFP_KERNEL); | |
371 | if (!dev) | |
372 | { | |
18658117 | 373 | printk(KERN_INFO "%s kzalloc(...) failed\n", __func__); |
2e5c1ec8 MK |
374 | return -ENOMEM; |
375 | } | |
376 | ||
377 | // init list entry so it could be safe in smscore_unregister_device | |
378 | INIT_LIST_HEAD(&dev->entry); | |
379 | ||
380 | // init queues | |
381 | INIT_LIST_HEAD(&dev->clients); | |
2e5c1ec8 MK |
382 | INIT_LIST_HEAD(&dev->buffers); |
383 | ||
384 | // init locks | |
385 | spin_lock_init(&dev->clientslock); | |
386 | spin_lock_init(&dev->bufferslock); | |
387 | ||
388 | // init completion events | |
389 | init_completion(&dev->version_ex_done); | |
390 | init_completion(&dev->data_download_done); | |
391 | init_completion(&dev->trigger_done); | |
392 | init_completion(&dev->init_device_done); | |
393 | init_completion(&dev->reload_start_done); | |
394 | init_completion(&dev->resume_done); | |
395 | ||
396 | // alloc common buffer | |
397 | dev->common_buffer_size = params->buffer_size * params->num_buffers; | |
398 | dev->common_buffer = dma_alloc_coherent(NULL, dev->common_buffer_size, &dev->common_buffer_phys, GFP_KERNEL | GFP_DMA); | |
399 | if (!dev->common_buffer) | |
400 | { | |
401 | smscore_unregister_device(dev); | |
402 | return -ENOMEM; | |
403 | } | |
404 | ||
405 | // prepare dma buffers | |
406 | for (buffer = dev->common_buffer; dev->num_buffers < params->num_buffers; dev->num_buffers ++, buffer += params->buffer_size) | |
407 | { | |
408 | smscore_buffer_t *cb = smscore_createbuffer(buffer, dev->common_buffer, dev->common_buffer_phys); | |
409 | if (!cb) | |
410 | { | |
411 | smscore_unregister_device(dev); | |
412 | return -ENOMEM; | |
413 | } | |
414 | ||
415 | smscore_putbuffer(dev, cb); | |
416 | } | |
417 | ||
18658117 | 418 | printk(KERN_INFO "%s allocated %d buffers\n", __func__, dev->num_buffers); |
2e5c1ec8 MK |
419 | |
420 | dev->mode = DEVICE_MODE_NONE; | |
421 | dev->context = params->context; | |
422 | dev->device = params->device; | |
423 | dev->setmode_handler = params->setmode_handler; | |
424 | dev->detectmode_handler = params->detectmode_handler; | |
425 | dev->sendrequest_handler = params->sendrequest_handler; | |
426 | dev->preload_handler = params->preload_handler; | |
427 | dev->postload_handler = params->postload_handler; | |
428 | ||
429 | dev->device_flags = params->flags; | |
430 | strcpy(dev->devpath, params->devpath); | |
431 | ||
f17407a8 MK |
432 | smscore_registry_settype ( dev->devpath, params->device_type ); |
433 | ||
2e5c1ec8 MK |
434 | // add device to devices list |
435 | kmutex_lock(&g_smscore_deviceslock); | |
436 | list_add(&dev->entry, &g_smscore_devices); | |
437 | kmutex_unlock(&g_smscore_deviceslock); | |
438 | ||
439 | *coredev = dev; | |
440 | ||
18658117 | 441 | printk(KERN_INFO "%s device %p created\n", __func__, dev); |
2e5c1ec8 MK |
442 | |
443 | return 0; | |
444 | } | |
445 | ||
446 | /** | |
447 | * sets initial device mode and notifies client hotplugs that device is ready | |
448 | * | |
449 | * @param coredev pointer to a coredev object returned by smscore_register_device | |
450 | * | |
451 | * @return 0 on success, <0 on error. | |
452 | */ | |
453 | int smscore_start_device(smscore_device_t *coredev) | |
454 | { | |
455 | int rc = smscore_set_device_mode(coredev, smscore_registry_getmode(coredev->devpath)); | |
456 | if (rc < 0) | |
f17407a8 MK |
457 | { |
458 | printk ( KERN_INFO "%s set device mode faile , rc %d\n", __func__, rc ); | |
2e5c1ec8 | 459 | return rc; |
f17407a8 | 460 | } |
2e5c1ec8 MK |
461 | |
462 | kmutex_lock(&g_smscore_deviceslock); | |
463 | ||
464 | rc = smscore_notify_callbacks(coredev, coredev->device, 1); | |
465 | ||
18658117 | 466 | printk(KERN_INFO "%s device %p started, rc %d\n", __func__, coredev, rc); |
2e5c1ec8 MK |
467 | |
468 | kmutex_unlock(&g_smscore_deviceslock); | |
469 | ||
470 | return rc; | |
471 | } | |
472 | ||
a83ccdd6 MK |
473 | int smscore_sendrequest_and_wait(smscore_device_t *coredev, void *buffer, |
474 | size_t size, struct completion *completion) | |
2e5c1ec8 MK |
475 | { |
476 | int rc = coredev->sendrequest_handler(coredev->context, buffer, size); | |
477 | if (rc < 0) | |
f17407a8 MK |
478 | { |
479 | printk(KERN_INFO "%s sendrequest returned error %d\n", __func__, rc); | |
2e5c1ec8 | 480 | return rc; |
f17407a8 | 481 | } |
2e5c1ec8 | 482 | |
f17407a8 | 483 | return wait_for_completion_timeout(completion, msecs_to_jiffies(10000)) ? 0 : -ETIME; |
2e5c1ec8 MK |
484 | } |
485 | ||
486 | int smscore_load_firmware_family2(smscore_device_t *coredev, void *buffer, size_t size) | |
487 | { | |
488 | SmsFirmware_ST* firmware = (SmsFirmware_ST*) buffer; | |
489 | SmsMsgHdr_ST *msg; | |
490 | UINT32 mem_address = firmware->StartAddress; | |
a83ccdd6 | 491 | u8 *payload = firmware->Payload; |
2e5c1ec8 MK |
492 | int rc = 0; |
493 | ||
f17407a8 | 494 | printk(KERN_INFO "%s loading FW to addr 0x%x size %d\n", __func__, mem_address,firmware->Length); |
2e5c1ec8 MK |
495 | if (coredev->preload_handler) |
496 | { | |
497 | rc = coredev->preload_handler(coredev->context); | |
498 | if (rc < 0) | |
499 | return rc; | |
500 | } | |
501 | ||
502 | // PAGE_SIZE buffer shall be enough and dma aligned | |
503 | msg = (SmsMsgHdr_ST *) kmalloc(PAGE_SIZE, GFP_KERNEL | GFP_DMA); | |
504 | if (!msg) | |
505 | return -ENOMEM; | |
506 | ||
507 | if (coredev->mode != DEVICE_MODE_NONE) | |
508 | { | |
f17407a8 | 509 | PDEBUG("Sending reload command\n"); |
2e5c1ec8 MK |
510 | SMS_INIT_MSG(msg, MSG_SW_RELOAD_START_REQ, sizeof(SmsMsgHdr_ST)); |
511 | rc = smscore_sendrequest_and_wait(coredev, msg, msg->msgLength, &coredev->reload_start_done); | |
512 | mem_address = *(UINT32*) &payload[20]; | |
513 | } | |
514 | ||
515 | while (size && rc >= 0) | |
516 | { | |
517 | SmsDataDownload_ST *DataMsg = (SmsDataDownload_ST *) msg; | |
518 | int payload_size = min((int) size, SMS_MAX_PAYLOAD_SIZE); | |
519 | ||
520 | SMS_INIT_MSG(msg, MSG_SMS_DATA_DOWNLOAD_REQ, (UINT16)(sizeof(SmsMsgHdr_ST) + sizeof(UINT32) + payload_size)); | |
521 | ||
522 | DataMsg->MemAddr = mem_address; | |
523 | memcpy(DataMsg->Payload, payload, payload_size); | |
524 | ||
525 | if (coredev->device_flags & SMS_ROM_NO_RESPONSE && coredev->mode == DEVICE_MODE_NONE) | |
526 | rc = coredev->sendrequest_handler(coredev->context, DataMsg, DataMsg->xMsgHeader.msgLength); | |
527 | else | |
528 | rc = smscore_sendrequest_and_wait(coredev, DataMsg, DataMsg->xMsgHeader.msgLength, &coredev->data_download_done); | |
529 | ||
530 | payload += payload_size; | |
531 | size -= payload_size; | |
532 | mem_address += payload_size; | |
533 | } | |
534 | ||
535 | if (rc >= 0) | |
536 | { | |
537 | if (coredev->mode == DEVICE_MODE_NONE) | |
538 | { | |
539 | SmsMsgData_ST* TriggerMsg = (SmsMsgData_ST*) msg; | |
540 | ||
541 | SMS_INIT_MSG(msg, MSG_SMS_SWDOWNLOAD_TRIGGER_REQ, sizeof(SmsMsgHdr_ST) + sizeof(UINT32) * 5); | |
542 | ||
543 | TriggerMsg->msgData[0] = firmware->StartAddress; // Entry point | |
544 | TriggerMsg->msgData[1] = 5; // Priority | |
545 | TriggerMsg->msgData[2] = 0x200; // Stack size | |
546 | TriggerMsg->msgData[3] = 0; // Parameter | |
547 | TriggerMsg->msgData[4] = 4; // Task ID | |
548 | ||
549 | if (coredev->device_flags & SMS_ROM_NO_RESPONSE) | |
550 | { | |
551 | rc = coredev->sendrequest_handler(coredev->context, TriggerMsg, TriggerMsg->xMsgHeader.msgLength); | |
552 | msleep(100); | |
553 | } | |
554 | else | |
555 | rc = smscore_sendrequest_and_wait(coredev, TriggerMsg, TriggerMsg->xMsgHeader.msgLength, &coredev->trigger_done); | |
556 | } | |
557 | else | |
558 | { | |
559 | SMS_INIT_MSG(msg, MSG_SW_RELOAD_EXEC_REQ, sizeof(SmsMsgHdr_ST)); | |
560 | ||
561 | rc = coredev->sendrequest_handler(coredev->context, msg, msg->msgLength); | |
562 | } | |
f17407a8 | 563 | msleep ( 500 ); |
2e5c1ec8 MK |
564 | } |
565 | ||
f17407a8 | 566 | printk("%s rc=%d, postload=%p \n", __func__, rc, coredev->postload_handler); |
2e5c1ec8 MK |
567 | |
568 | kfree(msg); | |
569 | ||
f17407a8 | 570 | return ((rc >= 0) && coredev->postload_handler) ? |
2e5c1ec8 MK |
571 | coredev->postload_handler(coredev->context) : |
572 | rc; | |
573 | } | |
574 | ||
575 | /** | |
576 | * loads specified firmware into a buffer and calls device loadfirmware_handler | |
577 | * | |
578 | * @param coredev pointer to a coredev object returned by smscore_register_device | |
579 | * @param filename null-terminated string specifies firmware file name | |
580 | * @param loadfirmware_handler device handler that loads firmware | |
581 | * | |
582 | * @return 0 on success, <0 on error. | |
583 | */ | |
f17407a8 | 584 | int smscore_load_firmware_from_file(smscore_device_t *coredev, char *filename, loadfirmware_t loadfirmware_handler) |
2e5c1ec8 MK |
585 | { |
586 | int rc = -ENOENT; | |
587 | ||
588 | const struct firmware *fw; | |
a83ccdd6 | 589 | u8 *fw_buffer; |
2e5c1ec8 MK |
590 | |
591 | if (loadfirmware_handler == NULL && !(coredev->device_flags & SMS_DEVICE_FAMILY2)) | |
592 | return -EINVAL; | |
593 | ||
594 | rc = request_firmware(&fw, filename, coredev->device); | |
595 | if (rc < 0) | |
596 | { | |
18658117 | 597 | printk(KERN_INFO "%s failed to open \"%s\"\n", __func__, filename); |
2e5c1ec8 MK |
598 | return rc; |
599 | } | |
f17407a8 | 600 | printk(KERN_INFO "%s read FW %s, size=%d\"\n", __func__, filename, fw->size); |
2e5c1ec8 MK |
601 | fw_buffer = kmalloc(ALIGN(fw->size, SMS_ALLOC_ALIGNMENT), GFP_KERNEL | GFP_DMA); |
602 | if (fw_buffer) | |
603 | { | |
604 | memcpy(fw_buffer, fw->data, fw->size); | |
605 | ||
606 | rc = (coredev->device_flags & SMS_DEVICE_FAMILY2) ? | |
607 | smscore_load_firmware_family2(coredev, fw_buffer, fw->size) : | |
608 | loadfirmware_handler(coredev->context, fw_buffer, fw->size); | |
609 | ||
610 | kfree(fw_buffer); | |
611 | } | |
612 | else | |
613 | { | |
18658117 | 614 | printk(KERN_INFO "%s failed to allocate firmware buffer\n", __func__); |
2e5c1ec8 MK |
615 | rc = -ENOMEM; |
616 | } | |
617 | ||
618 | release_firmware(fw); | |
619 | ||
620 | return rc; | |
621 | } | |
622 | ||
494d24c5 | 623 | int smscore_load_firmware_from_buffer(smscore_device_t *coredev, u8 *buffer, int size, int new_mode) |
f17407a8 MK |
624 | { |
625 | PERROR("Feature not implemented yet\n"); | |
626 | return -EFAULT; | |
627 | } | |
628 | ||
2e5c1ec8 MK |
629 | /** |
630 | * notifies all clients registered with the device, notifies hotplugs, frees all buffers and coredev object | |
631 | * | |
632 | * @param coredev pointer to a coredev object returned by smscore_register_device | |
633 | * | |
634 | * @return 0 on success, <0 on error. | |
635 | */ | |
636 | void smscore_unregister_device(smscore_device_t *coredev) | |
637 | { | |
638 | smscore_buffer_t *cb; | |
639 | int num_buffers = 0; | |
f17407a8 | 640 | int retry = 0; |
2e5c1ec8 MK |
641 | |
642 | kmutex_lock(&g_smscore_deviceslock); | |
643 | ||
644 | smscore_notify_clients(coredev); | |
645 | smscore_notify_callbacks(coredev, NULL, 0); | |
646 | ||
647 | // at this point all buffers should be back | |
648 | // onresponse must no longer be called | |
649 | ||
650 | while (1) | |
651 | { | |
652 | while ((cb = smscore_getbuffer(coredev))) | |
653 | { | |
654 | kfree(cb); | |
655 | num_buffers ++; | |
656 | } | |
2e5c1ec8 MK |
657 | if (num_buffers == coredev->num_buffers) |
658 | break; | |
f17407a8 MK |
659 | if (++retry > 10) |
660 | { | |
661 | printk(KERN_INFO "%s exiting although not all buffers released.\n", __func__); | |
662 | break; | |
663 | } | |
2e5c1ec8 | 664 | |
18658117 | 665 | printk(KERN_INFO "%s waiting for %d buffer(s)\n", __func__, coredev->num_buffers - num_buffers); |
2e5c1ec8 MK |
666 | msleep(100); |
667 | } | |
668 | ||
18658117 | 669 | printk(KERN_INFO "%s freed %d buffers\n", __func__, num_buffers); |
2e5c1ec8 MK |
670 | |
671 | if (coredev->common_buffer) | |
672 | dma_free_coherent(NULL, coredev->common_buffer_size, coredev->common_buffer, coredev->common_buffer_phys); | |
673 | ||
674 | list_del(&coredev->entry); | |
675 | kfree(coredev); | |
676 | ||
677 | kmutex_unlock(&g_smscore_deviceslock); | |
678 | ||
18658117 | 679 | printk(KERN_INFO "%s device %p destroyed\n", __func__, coredev); |
2e5c1ec8 MK |
680 | } |
681 | ||
682 | int smscore_detect_mode(smscore_device_t *coredev) | |
683 | { | |
684 | void *buffer = kmalloc(sizeof(SmsMsgHdr_ST) + SMS_DMA_ALIGNMENT, GFP_KERNEL | GFP_DMA); | |
685 | SmsMsgHdr_ST *msg = (SmsMsgHdr_ST *) SMS_ALIGN_ADDRESS(buffer); | |
686 | int rc; | |
687 | ||
688 | if (!buffer) | |
689 | return -ENOMEM; | |
690 | ||
691 | SMS_INIT_MSG(msg, MSG_SMS_GET_VERSION_EX_REQ, sizeof(SmsMsgHdr_ST)); | |
692 | ||
693 | rc = smscore_sendrequest_and_wait(coredev, msg, msg->msgLength, &coredev->version_ex_done); | |
694 | if (rc == -ETIME) | |
695 | { | |
18658117 | 696 | printk("%s: MSG_SMS_GET_VERSION_EX_REQ failed first try\n", __func__); |
2e5c1ec8 MK |
697 | |
698 | if (wait_for_completion_timeout(&coredev->resume_done, msecs_to_jiffies(5000))) | |
699 | { | |
700 | rc = smscore_sendrequest_and_wait(coredev, msg, msg->msgLength, &coredev->version_ex_done); | |
701 | if (rc < 0) | |
702 | { | |
18658117 | 703 | printk("%s: MSG_SMS_GET_VERSION_EX_REQ failed second try, rc %d\n", __func__, rc); |
2e5c1ec8 MK |
704 | } |
705 | } | |
706 | else | |
707 | rc = -ETIME; | |
708 | } | |
709 | ||
710 | kfree(buffer); | |
711 | ||
712 | return rc; | |
713 | } | |
714 | ||
f17407a8 | 715 | char *smscore_fw_lkup[][SMS_NUM_OF_DEVICE_TYPES] = |
2e5c1ec8 | 716 | { |
f17407a8 MK |
717 | /*Stellar NOVA A0 Nova B0 VEGA*/ |
718 | /*DVBT*/ {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"}, | |
719 | /*DVBH*/ {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"}, | |
720 | /*TDMB*/ {"none", "tdmb_nova_12mhz.inp", "none" "none"}, | |
721 | /*DABIP*/ {"none", "none", "none", "none"}, | |
722 | /*BDA*/ {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"}, | |
723 | /*ISDBT*/ {"none", "isdbt_nova_12mhz.inp", "dvb_nova_12mhz.inp", "none"}, | |
724 | /*ISDBTBDA*/{"none", "isdbt_nova_12mhz.inp", "isdbt_nova_12mhz_b0.inp", "none"}, | |
725 | /*CMMB*/ {"none", "none", "none", "cmmb_vega_12mhz.inp"} | |
2e5c1ec8 MK |
726 | }; |
727 | ||
f17407a8 | 728 | |
2e5c1ec8 MK |
729 | /** |
730 | * calls device handler to change mode of operation | |
731 | * NOTE: stellar/usb may disconnect when changing mode | |
732 | * | |
733 | * @param coredev pointer to a coredev object returned by smscore_register_device | |
734 | * @param mode requested mode of operation | |
735 | * | |
736 | * @return 0 on success, <0 on error. | |
737 | */ | |
738 | int smscore_set_device_mode(smscore_device_t *coredev, int mode) | |
739 | { | |
740 | void *buffer; | |
741 | int rc = 0; | |
f17407a8 | 742 | sms_device_type_st type; |
2e5c1ec8 | 743 | |
f17407a8 | 744 | PDEBUG("set device mode to %d\n", mode ); |
2e5c1ec8 MK |
745 | if (coredev->device_flags & SMS_DEVICE_FAMILY2) |
746 | { | |
747 | if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_RAW_TUNER) | |
748 | { | |
18658117 | 749 | printk(KERN_INFO "%s invalid mode specified %d\n", __func__, mode); |
2e5c1ec8 MK |
750 | return -EINVAL; |
751 | } | |
752 | ||
f17407a8 MK |
753 | smscore_registry_setmode(coredev->devpath, mode); |
754 | ||
2e5c1ec8 MK |
755 | if (!(coredev->device_flags & SMS_DEVICE_NOT_READY)) |
756 | { | |
757 | rc = smscore_detect_mode(coredev); | |
758 | if (rc < 0) | |
f17407a8 MK |
759 | { |
760 | printk(KERN_INFO "%s mode detect failed %d\n", __func__, rc); | |
2e5c1ec8 MK |
761 | return rc; |
762 | } | |
f17407a8 | 763 | } |
2e5c1ec8 MK |
764 | |
765 | if (coredev->mode == mode) | |
766 | { | |
18658117 | 767 | printk(KERN_INFO "%s device mode %d already set\n", __func__, mode); |
2e5c1ec8 MK |
768 | return 0; |
769 | } | |
770 | ||
771 | if (!(coredev->modes_supported & (1 << mode))) | |
772 | { | |
f17407a8 MK |
773 | type = smscore_registry_gettype ( coredev->devpath ); |
774 | rc = smscore_load_firmware_from_file ( coredev, smscore_fw_lkup[mode][type], NULL ); | |
2e5c1ec8 | 775 | if (rc < 0) |
f17407a8 MK |
776 | { |
777 | printk(KERN_INFO "%s load firmware failed %d\n", __func__, rc); | |
2e5c1ec8 MK |
778 | return rc; |
779 | } | |
f17407a8 | 780 | } |
2e5c1ec8 MK |
781 | else |
782 | { | |
18658117 | 783 | printk(KERN_INFO "%s mode %d supported by running firmware\n", __func__, mode); |
2e5c1ec8 MK |
784 | } |
785 | ||
786 | buffer = kmalloc(sizeof(SmsMsgData_ST) + SMS_DMA_ALIGNMENT, GFP_KERNEL | GFP_DMA); | |
787 | if (buffer) | |
788 | { | |
789 | SmsMsgData_ST *msg = (SmsMsgData_ST *) SMS_ALIGN_ADDRESS(buffer); | |
790 | ||
791 | SMS_INIT_MSG(&msg->xMsgHeader, MSG_SMS_INIT_DEVICE_REQ, sizeof(SmsMsgData_ST)); | |
792 | msg->msgData[0] = mode; | |
793 | ||
794 | rc = smscore_sendrequest_and_wait(coredev, msg, msg->xMsgHeader.msgLength, &coredev->init_device_done); | |
795 | ||
796 | kfree(buffer); | |
797 | } | |
798 | else | |
f17407a8 MK |
799 | { |
800 | printk(KERN_INFO "%s Could not allocate buffer for init device message.\n", __func__); | |
2e5c1ec8 MK |
801 | rc = -ENOMEM; |
802 | } | |
f17407a8 | 803 | } |
2e5c1ec8 MK |
804 | else |
805 | { | |
f17407a8 MK |
806 | if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA) |
807 | { | |
808 | printk(KERN_INFO "%s invalid mode specified %d\n", __func__, mode); | |
809 | return -EINVAL; | |
810 | } | |
811 | ||
812 | smscore_registry_setmode(coredev->devpath, mode); | |
813 | ||
2e5c1ec8 MK |
814 | if (coredev->detectmode_handler) |
815 | coredev->detectmode_handler(coredev->context, &coredev->mode); | |
816 | ||
817 | if (coredev->mode != mode && coredev->setmode_handler) | |
818 | rc = coredev->setmode_handler(coredev->context, mode); | |
819 | } | |
820 | ||
2e5c1ec8 MK |
821 | if (rc >= 0) |
822 | { | |
823 | coredev->mode = mode; | |
824 | coredev->device_flags &= ~SMS_DEVICE_NOT_READY; | |
825 | } | |
826 | ||
f17407a8 MK |
827 | if (rc != 0) |
828 | printk(KERN_INFO "%s return error code %d.\n", __func__, rc); | |
2e5c1ec8 MK |
829 | return rc; |
830 | } | |
831 | ||
832 | /** | |
833 | * calls device handler to get current mode of operation | |
834 | * | |
835 | * @param coredev pointer to a coredev object returned by smscore_register_device | |
836 | * | |
837 | * @return current mode | |
838 | */ | |
839 | int smscore_get_device_mode(smscore_device_t *coredev) | |
840 | { | |
841 | return coredev->mode; | |
842 | } | |
843 | ||
f17407a8 MK |
844 | /** |
845 | * find client by response id & type within the clients list. | |
846 | * return client handle or NULL. | |
847 | * | |
848 | * @param coredev pointer to a coredev object returned by smscore_register_device | |
849 | * @param data_type client data type (SMS_DONT_CARE for all types) | |
850 | * @param id client id (SMS_DONT_CARE for all id ) | |
851 | * | |
852 | */ | |
853 | smscore_client_t *smscore_find_client(smscore_device_t *coredev, int data_type, int id) | |
2e5c1ec8 MK |
854 | { |
855 | smscore_client_t *client = NULL; | |
856 | struct list_head *next, *first; | |
857 | unsigned long flags; | |
f17407a8 | 858 | struct list_head *firstid, *nextid; |
2e5c1ec8 | 859 | |
2e5c1ec8 MK |
860 | |
861 | spin_lock_irqsave(&coredev->clientslock, flags); | |
2e5c1ec8 | 862 | first = &coredev->clients; |
f17407a8 MK |
863 | for (next = first->next; (next != first) && !client; next = next->next) |
864 | { | |
865 | firstid = &((smscore_client_t*)next )->idlist; | |
866 | for (nextid = firstid->next ; nextid != firstid ; nextid = nextid->next) | |
2e5c1ec8 | 867 | { |
f17407a8 MK |
868 | if ((((smscore_idlist_t*)nextid)->id == id) && |
869 | (((smscore_idlist_t*)nextid)->data_type == data_type || | |
870 | (((smscore_idlist_t*)nextid)->data_type == 0))) | |
2e5c1ec8 MK |
871 | { |
872 | client = (smscore_client_t*) next; | |
873 | break; | |
874 | } | |
875 | } | |
2e5c1ec8 | 876 | } |
2e5c1ec8 | 877 | spin_unlock_irqrestore(&coredev->clientslock, flags); |
2e5c1ec8 MK |
878 | return client; |
879 | } | |
880 | ||
881 | /** | |
882 | * find client by response id/type, call clients onresponse handler | |
883 | * return buffer to pool on error | |
884 | * | |
885 | * @param coredev pointer to a coredev object returned by smscore_register_device | |
886 | * @param cb pointer to response buffer descriptor | |
887 | * | |
888 | */ | |
889 | void smscore_onresponse(smscore_device_t *coredev, smscore_buffer_t *cb) | |
890 | { | |
494d24c5 | 891 | SmsMsgHdr_ST *phdr = (SmsMsgHdr_ST *)((u8 *) cb->p + cb->offset); |
f17407a8 | 892 | smscore_client_t *client = smscore_find_client(coredev, phdr->msgType, phdr->msgDstId); |
2e5c1ec8 MK |
893 | int rc = -EBUSY; |
894 | ||
895 | static unsigned long last_sample_time = 0; | |
896 | static int data_total = 0; | |
897 | unsigned long time_now = jiffies_to_msecs(jiffies); | |
898 | ||
899 | if (!last_sample_time) | |
900 | last_sample_time = time_now; | |
901 | ||
902 | if (time_now - last_sample_time > 10000) | |
903 | { | |
904 | printk("\n%s data rate %d bytes/secs\n", __func__, (int)((data_total * 1000) / (time_now - last_sample_time))); | |
905 | ||
906 | last_sample_time = time_now; | |
907 | data_total = 0; | |
908 | } | |
909 | ||
910 | data_total += cb->size; | |
f17407a8 MK |
911 | /* If no client registered for type & id, check for control client where type is not registered*/ |
912 | // if (!client) | |
913 | // client = smscore_find_client( coredev, 0, phdr->msgDstId); | |
2e5c1ec8 MK |
914 | if (client) |
915 | rc = client->onresponse_handler(client->context, cb); | |
916 | ||
917 | if (rc < 0) | |
918 | { | |
919 | switch (phdr->msgType) | |
920 | { | |
921 | case MSG_SMS_GET_VERSION_EX_RES: | |
922 | { | |
923 | SmsVersionRes_ST *ver = (SmsVersionRes_ST*) phdr; | |
18658117 | 924 | printk("%s: MSG_SMS_GET_VERSION_EX_RES id %d prots 0x%x ver %d.%d\n", __func__, ver->FirmwareId, ver->SupportedProtocols, ver->RomVersionMajor, ver->RomVersionMinor); |
2e5c1ec8 MK |
925 | |
926 | coredev->mode = ver->FirmwareId == 255 ? DEVICE_MODE_NONE : ver->FirmwareId; | |
927 | coredev->modes_supported = ver->SupportedProtocols; | |
928 | ||
929 | complete(&coredev->version_ex_done); | |
930 | break; | |
931 | } | |
932 | ||
933 | case MSG_SMS_INIT_DEVICE_RES: | |
18658117 | 934 | printk("%s: MSG_SMS_INIT_DEVICE_RES\n", __func__); |
2e5c1ec8 MK |
935 | complete(&coredev->init_device_done); |
936 | break; | |
937 | ||
938 | case MSG_SW_RELOAD_START_RES: | |
18658117 | 939 | printk("%s: MSG_SW_RELOAD_START_RES\n", __func__); |
2e5c1ec8 MK |
940 | complete(&coredev->reload_start_done); |
941 | break; | |
942 | ||
943 | case MSG_SMS_DATA_DOWNLOAD_RES: | |
944 | complete(&coredev->data_download_done); | |
945 | break; | |
946 | ||
947 | case MSG_SW_RELOAD_EXEC_RES: | |
18658117 | 948 | printk("%s: MSG_SW_RELOAD_EXEC_RES\n", __func__); |
2e5c1ec8 MK |
949 | break; |
950 | ||
951 | case MSG_SMS_SWDOWNLOAD_TRIGGER_RES: | |
18658117 | 952 | printk("%s: MSG_SMS_SWDOWNLOAD_TRIGGER_RES\n", __func__); |
2e5c1ec8 MK |
953 | complete(&coredev->trigger_done); |
954 | break; | |
955 | ||
956 | case MSG_SMS_SLEEP_RESUME_COMP_IND: | |
957 | complete(&coredev->resume_done); | |
958 | break; | |
959 | ||
960 | default: | |
f17407a8 MK |
961 | //printk(KERN_INFO "%s no client (%p) or error (%d), type:%d dstid:%d\n", __func__, client, rc, phdr->msgType, phdr->msgDstId); |
962 | break; | |
2e5c1ec8 MK |
963 | } |
964 | ||
965 | smscore_putbuffer(coredev, cb); | |
966 | } | |
967 | } | |
968 | ||
969 | /** | |
970 | * return pointer to next free buffer descriptor from core pool | |
971 | * | |
972 | * @param coredev pointer to a coredev object returned by smscore_register_device | |
973 | * | |
974 | * @return pointer to descriptor on success, NULL on error. | |
975 | */ | |
976 | smscore_buffer_t *smscore_getbuffer(smscore_device_t *coredev) | |
977 | { | |
978 | smscore_buffer_t *cb = NULL; | |
979 | unsigned long flags; | |
980 | ||
981 | spin_lock_irqsave(&coredev->bufferslock, flags); | |
982 | ||
983 | if (!list_empty(&coredev->buffers)) | |
984 | { | |
985 | cb = (smscore_buffer_t *) coredev->buffers.next; | |
986 | list_del(&cb->entry); | |
987 | } | |
988 | ||
989 | spin_unlock_irqrestore(&coredev->bufferslock, flags); | |
990 | ||
991 | return cb; | |
992 | } | |
993 | ||
994 | /** | |
995 | * return buffer descriptor to a pool | |
996 | * | |
997 | * @param coredev pointer to a coredev object returned by smscore_register_device | |
998 | * @param cb pointer buffer descriptor | |
999 | * | |
1000 | */ | |
1001 | void smscore_putbuffer(smscore_device_t *coredev, smscore_buffer_t *cb) | |
1002 | { | |
1003 | list_add_locked(&cb->entry, &coredev->buffers, &coredev->bufferslock); | |
1004 | } | |
1005 | ||
f17407a8 | 1006 | int smscore_validate_client(smscore_device_t *coredev, smscore_client_t *client, int data_type, int id) |
2e5c1ec8 | 1007 | { |
f17407a8 MK |
1008 | smscore_idlist_t *listentry; |
1009 | smscore_client_t *registered_client; | |
2e5c1ec8 | 1010 | |
f17407a8 MK |
1011 | if ( !client ) |
1012 | { | |
1013 | PERROR("bad parameter.\n"); | |
1014 | return -EFAULT; | |
1015 | } | |
1016 | registered_client = smscore_find_client(coredev, data_type, id); | |
1017 | if (registered_client == client) | |
1018 | { | |
2e5c1ec8 | 1019 | return 0; |
f17407a8 MK |
1020 | } |
1021 | if (registered_client) | |
1022 | { | |
1023 | PERROR("The msg ID already registered to another client.\n"); | |
1024 | return -EEXIST; | |
1025 | } | |
1026 | listentry = kzalloc ( sizeof ( smscore_idlist_t ), GFP_KERNEL ); | |
1027 | if ( !listentry ) | |
1028 | { | |
1029 | PERROR("Can't allocate memory for client id.\n"); | |
2e5c1ec8 | 1030 | return -ENOMEM; |
f17407a8 MK |
1031 | } |
1032 | listentry->id = id; | |
1033 | listentry->data_type = data_type; | |
1034 | list_add_locked ( &listentry->entry, &client->idlist, &coredev->clientslock ); | |
2e5c1ec8 MK |
1035 | return 0; |
1036 | } | |
1037 | ||
1038 | /** | |
1039 | * creates smsclient object, check that id is taken by another client | |
1040 | * | |
1041 | * @param coredev pointer to a coredev object from clients hotplug | |
1042 | * @param initial_id all messages with this id would be sent to this client | |
1043 | * @param data_type all messages of this type would be sent to this client | |
1044 | * @param onresponse_handler client handler that is called to process incoming messages | |
1045 | * @param onremove_handler client handler that is called when device is removed | |
1046 | * @param context client-specific context | |
1047 | * @param client pointer to a value that receives created smsclient object | |
1048 | * | |
1049 | * @return 0 on success, <0 on error. | |
1050 | */ | |
1051 | int smscore_register_client(smscore_device_t *coredev, smsclient_params_t *params, smscore_client_t **client) | |
1052 | { | |
a83ccdd6 | 1053 | smscore_client_t *newclient; |
f17407a8 MK |
1054 | // check that no other channel with same parameters exists |
1055 | if (smscore_find_client(coredev, params->data_type, params->initial_id)) | |
1056 | { | |
1057 | PERROR("Client already exist.\n"); | |
2e5c1ec8 | 1058 | return -EEXIST; |
f17407a8 | 1059 | } |
2e5c1ec8 MK |
1060 | |
1061 | newclient = kzalloc(sizeof(smscore_client_t), GFP_KERNEL); | |
1062 | if (!newclient) | |
2e5c1ec8 | 1063 | { |
f17407a8 MK |
1064 | PERROR("Failed to allocate memory for client.\n"); |
1065 | return -ENOMEM; | |
2e5c1ec8 MK |
1066 | } |
1067 | ||
f17407a8 | 1068 | INIT_LIST_HEAD ( &newclient->idlist); |
2e5c1ec8 | 1069 | newclient->coredev = coredev; |
2e5c1ec8 MK |
1070 | newclient->onresponse_handler = params->onresponse_handler; |
1071 | newclient->onremove_handler = params->onremove_handler; | |
1072 | newclient->context = params->context; | |
2e5c1ec8 | 1073 | list_add_locked(&newclient->entry, &coredev->clients, &coredev->clientslock); |
f17407a8 | 1074 | smscore_validate_client(coredev, newclient, params->data_type, params->initial_id); |
2e5c1ec8 | 1075 | *client = newclient; |
f17407a8 | 1076 | PDEBUG ( "%p %d %d\n", params->context, params->data_type, params->initial_id ); |
2e5c1ec8 MK |
1077 | |
1078 | return 0; | |
1079 | } | |
1080 | ||
1081 | /** | |
1082 | * frees smsclient object and all subclients associated with it | |
1083 | * | |
1084 | * @param client pointer to smsclient object returned by smscore_register_client | |
1085 | * | |
1086 | */ | |
1087 | void smscore_unregister_client(smscore_client_t *client) | |
1088 | { | |
1089 | smscore_device_t *coredev = client->coredev; | |
2e5c1ec8 MK |
1090 | unsigned long flags; |
1091 | ||
1092 | spin_lock_irqsave(&coredev->clientslock, flags); | |
1093 | ||
2e5c1ec8 | 1094 | |
f17407a8 | 1095 | while (!list_empty( &client->idlist)) |
2e5c1ec8 | 1096 | { |
f17407a8 MK |
1097 | smscore_idlist_t *identry = (smscore_idlist_t*)client->idlist.next; |
1098 | list_del ( &identry->entry ); | |
1099 | kfree ( identry ); | |
2e5c1ec8 MK |
1100 | } |
1101 | ||
f17407a8 | 1102 | printk(KERN_INFO "%s %p\n", __func__, client->context); |
2e5c1ec8 MK |
1103 | |
1104 | list_del(&client->entry); | |
1105 | kfree(client); | |
1106 | ||
1107 | spin_unlock_irqrestore(&coredev->clientslock, flags); | |
1108 | } | |
1109 | ||
1110 | /** | |
1111 | * verifies that source id is not taken by another client, | |
1112 | * calls device handler to send requests to the device | |
1113 | * | |
1114 | * @param client pointer to smsclient object returned by smscore_register_client | |
1115 | * @param buffer pointer to a request buffer | |
1116 | * @param size size (in bytes) of request buffer | |
1117 | * | |
1118 | * @return 0 on success, <0 on error. | |
1119 | */ | |
1120 | int smsclient_sendrequest(smscore_client_t *client, void *buffer, size_t size) | |
1121 | { | |
f17407a8 | 1122 | smscore_device_t *coredev; |
494d24c5 | 1123 | SmsMsgHdr_ST *phdr = (SmsMsgHdr_ST *) buffer; |
f17407a8 MK |
1124 | int rc; |
1125 | ||
1126 | if ( client == NULL ) | |
1127 | { | |
1128 | printk(KERN_ERR "%s Got NULL client\n", __func__ ); | |
1129 | return -EINVAL; | |
1130 | } | |
1131 | ||
1132 | coredev = client->coredev; | |
2e5c1ec8 MK |
1133 | |
1134 | // check that no other channel with same id exists | |
f17407a8 MK |
1135 | if ( coredev == NULL ) |
1136 | { | |
1137 | printk(KERN_ERR "%s Got NULL coredev\n", __func__ ); | |
1138 | return -EINVAL; | |
1139 | } | |
1140 | ||
1141 | rc = smscore_validate_client(client->coredev, client, 0, phdr->msgSrcId); | |
2e5c1ec8 MK |
1142 | if (rc < 0) |
1143 | return rc; | |
1144 | ||
1145 | return coredev->sendrequest_handler(coredev->context, buffer, size); | |
1146 | } | |
1147 | ||
1148 | /** | |
1149 | * return the size of large (common) buffer | |
1150 | * | |
1151 | * @param coredev pointer to a coredev object from clients hotplug | |
1152 | * | |
1153 | * @return size (in bytes) of the buffer | |
1154 | */ | |
1155 | int smscore_get_common_buffer_size(smscore_device_t *coredev) | |
1156 | { | |
1157 | return coredev->common_buffer_size; | |
1158 | } | |
1159 | ||
1160 | /** | |
1161 | * maps common buffer (if supported by platform) | |
1162 | * | |
1163 | * @param coredev pointer to a coredev object from clients hotplug | |
1164 | * @param vma pointer to vma struct from mmap handler | |
1165 | * | |
1166 | * @return 0 on success, <0 on error. | |
1167 | */ | |
a83ccdd6 MK |
1168 | int smscore_map_common_buffer(smscore_device_t *coredev, |
1169 | struct vm_area_struct *vma) | |
2e5c1ec8 MK |
1170 | { |
1171 | unsigned long end = vma->vm_end, start = vma->vm_start, size = PAGE_ALIGN(coredev->common_buffer_size); | |
1172 | ||
1173 | if (!(vma->vm_flags & (VM_READ | VM_SHARED)) || (vma->vm_flags & VM_WRITE)) | |
1174 | { | |
18658117 | 1175 | printk(KERN_INFO "%s invalid vm flags\n", __func__); |
2e5c1ec8 MK |
1176 | return -EINVAL; |
1177 | } | |
1178 | ||
1179 | if ((end - start) != size) | |
1180 | { | |
18658117 | 1181 | printk(KERN_INFO "%s invalid size %d expected %d\n", __func__, (int)(end - start), (int) size); |
2e5c1ec8 MK |
1182 | return -EINVAL; |
1183 | } | |
1184 | ||
1185 | if (remap_pfn_range(vma, start, coredev->common_buffer_phys >> PAGE_SHIFT, size, pgprot_noncached(vma->vm_page_prot))) | |
1186 | { | |
18658117 | 1187 | printk(KERN_INFO "%s remap_page_range failed\n", __func__); |
2e5c1ec8 MK |
1188 | return -EAGAIN; |
1189 | } | |
1190 | ||
1191 | return 0; | |
1192 | } | |
1193 | ||
1194 | int smscore_module_init(void) | |
1195 | { | |
c6465799 | 1196 | int rc = 0; |
2e5c1ec8 MK |
1197 | |
1198 | INIT_LIST_HEAD(&g_smscore_notifyees); | |
1199 | INIT_LIST_HEAD(&g_smscore_devices); | |
1200 | kmutex_init(&g_smscore_deviceslock); | |
1201 | ||
1202 | INIT_LIST_HEAD(&g_smscore_registry); | |
1203 | kmutex_init(&g_smscore_registrylock); | |
1204 | ||
eae55660 ST |
1205 | /* USB Register */ |
1206 | rc = smsusb_register(); | |
1207 | ||
1208 | /* DVB Register */ | |
1209 | rc = smsdvb_register(); | |
1210 | ||
18658117 | 1211 | printk(KERN_INFO "%s, rc %d\n", __func__, rc); |
2e5c1ec8 MK |
1212 | |
1213 | return rc; | |
1214 | } | |
1215 | ||
1216 | void smscore_module_exit(void) | |
1217 | { | |
eae55660 | 1218 | |
2e5c1ec8 MK |
1219 | kmutex_lock(&g_smscore_deviceslock); |
1220 | while (!list_empty(&g_smscore_notifyees)) | |
1221 | { | |
1222 | smscore_device_notifyee_t *notifyee = (smscore_device_notifyee_t *) g_smscore_notifyees.next; | |
1223 | ||
1224 | list_del(¬ifyee->entry); | |
1225 | kfree(notifyee); | |
1226 | } | |
1227 | kmutex_unlock(&g_smscore_deviceslock); | |
1228 | ||
1229 | kmutex_lock(&g_smscore_registrylock); | |
1230 | while (!list_empty(&g_smscore_registry)) | |
1231 | { | |
1232 | smscore_registry_entry_t *entry = (smscore_registry_entry_t *) g_smscore_registry.next; | |
1233 | ||
1234 | list_del(&entry->entry); | |
1235 | kfree(entry); | |
1236 | } | |
1237 | kmutex_unlock(&g_smscore_registrylock); | |
1238 | ||
eae55660 ST |
1239 | /* DVB UnRegister */ |
1240 | smsdvb_unregister(); | |
1241 | ||
1242 | /* Unregister USB */ | |
1243 | smsusb_unregister(); | |
1244 | ||
18658117 | 1245 | printk(KERN_INFO "%s\n", __func__); |
2e5c1ec8 MK |
1246 | } |
1247 | ||
1248 | module_init(smscore_module_init); | |
1249 | module_exit(smscore_module_exit); | |
1250 | ||
1251 | MODULE_DESCRIPTION("smscore"); | |
f17407a8 | 1252 | MODULE_AUTHOR ( "Siano Mobile Silicon,,, (doronc@siano-ms.com)" ); |
2e5c1ec8 MK |
1253 | MODULE_LICENSE("GPL"); |
1254 |