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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 | |
f14d56a9 MK |
36 | int sms_debug; |
37 | module_param_named(debug, sms_debug, int, 0644); | |
38 | MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))"); | |
39 | ||
18245e18 | 40 | struct smscore_device_notifyee_t { |
2e5c1ec8 MK |
41 | struct list_head entry; |
42 | hotplug_t hotplug; | |
18245e18 | 43 | }; |
2e5c1ec8 | 44 | |
18245e18 | 45 | struct smscore_idlist_t { |
f17407a8 MK |
46 | struct list_head entry; |
47 | int id; | |
48 | int data_type; | |
18245e18 | 49 | }; |
f17407a8 | 50 | |
18245e18 | 51 | struct smscore_client_t { |
2e5c1ec8 | 52 | struct list_head entry; |
18245e18 | 53 | struct smscore_device_t *coredev; |
2e5c1ec8 | 54 | void *context; |
f17407a8 | 55 | struct list_head idlist; |
2e5c1ec8 MK |
56 | onresponse_t onresponse_handler; |
57 | onremove_t onremove_handler; | |
18245e18 | 58 | }; |
2e5c1ec8 | 59 | |
18245e18 | 60 | struct smscore_device_t { |
2e5c1ec8 MK |
61 | struct list_head entry; |
62 | ||
63 | struct list_head clients; | |
64 | struct list_head subclients; | |
65 | spinlock_t clientslock; | |
66 | ||
67 | struct list_head buffers; | |
68 | spinlock_t bufferslock; | |
69 | int num_buffers; | |
70 | ||
71 | void *common_buffer; | |
72 | int common_buffer_size; | |
73 | dma_addr_t common_buffer_phys; | |
74 | ||
75 | void *context; | |
76 | struct device *device; | |
77 | ||
78 | char devpath[32]; | |
79 | unsigned long device_flags; | |
80 | ||
81 | setmode_t setmode_handler; | |
82 | detectmode_t detectmode_handler; | |
83 | sendrequest_t sendrequest_handler; | |
84 | preload_t preload_handler; | |
85 | postload_t postload_handler; | |
86 | ||
87 | int mode, modes_supported; | |
88 | ||
89 | struct completion version_ex_done, data_download_done, trigger_done; | |
90 | struct completion init_device_done, reload_start_done, resume_done; | |
1c11d546 MK |
91 | |
92 | int board_id; | |
18245e18 | 93 | }; |
2e5c1ec8 | 94 | |
1c11d546 MK |
95 | void smscore_set_board_id(struct smscore_device_t *core, int id) |
96 | { | |
97 | core->board_id = id; | |
98 | } | |
99 | ||
100 | int smscore_get_board_id(struct smscore_device_t *core) | |
101 | { | |
102 | return core->board_id; | |
103 | } | |
104 | ||
18245e18 | 105 | struct smscore_registry_entry_t { |
2e5c1ec8 MK |
106 | struct list_head entry; |
107 | char devpath[32]; | |
108 | int mode; | |
18245e18 MK |
109 | enum sms_device_type_st type; |
110 | }; | |
2e5c1ec8 MK |
111 | |
112 | struct list_head g_smscore_notifyees; | |
113 | struct list_head g_smscore_devices; | |
114 | kmutex_t g_smscore_deviceslock; | |
115 | ||
116 | struct list_head g_smscore_registry; | |
117 | kmutex_t g_smscore_registrylock; | |
118 | ||
dd5b2a5c | 119 | static int default_mode = 4; |
f17407a8 | 120 | |
2e5c1ec8 MK |
121 | module_param(default_mode, int, 0644); |
122 | MODULE_PARM_DESC(default_mode, "default firmware id (device mode)"); | |
123 | ||
18245e18 | 124 | static struct smscore_registry_entry_t *smscore_find_registry(char *devpath) |
2e5c1ec8 | 125 | { |
18245e18 | 126 | struct smscore_registry_entry_t *entry; |
2e5c1ec8 MK |
127 | struct list_head *next; |
128 | ||
129 | kmutex_lock(&g_smscore_registrylock); | |
82237416 MK |
130 | for (next = g_smscore_registry.next; |
131 | next != &g_smscore_registry; | |
132 | next = next->next) { | |
18245e18 | 133 | entry = (struct smscore_registry_entry_t *) next; |
82237416 | 134 | if (!strcmp(entry->devpath, devpath)) { |
2e5c1ec8 | 135 | kmutex_unlock(&g_smscore_registrylock); |
f17407a8 | 136 | return entry; |
2e5c1ec8 MK |
137 | } |
138 | } | |
18245e18 MK |
139 | entry = (struct smscore_registry_entry_t *) |
140 | kmalloc(sizeof(struct smscore_registry_entry_t), | |
141 | GFP_KERNEL); | |
82237416 | 142 | if (entry) { |
2e5c1ec8 MK |
143 | entry->mode = default_mode; |
144 | strcpy(entry->devpath, devpath); | |
2e5c1ec8 | 145 | list_add(&entry->entry, &g_smscore_registry); |
82237416 | 146 | } else |
a0c0abcb | 147 | sms_err("failed to create smscore_registry."); |
2e5c1ec8 | 148 | kmutex_unlock(&g_smscore_registrylock); |
f17407a8 MK |
149 | return entry; |
150 | } | |
2e5c1ec8 | 151 | |
82237416 | 152 | int smscore_registry_getmode(char *devpath) |
f17407a8 | 153 | { |
18245e18 | 154 | struct smscore_registry_entry_t *entry; |
f17407a8 | 155 | |
82237416 MK |
156 | entry = smscore_find_registry(devpath); |
157 | if (entry) | |
f17407a8 | 158 | return entry->mode; |
f17407a8 | 159 | else |
a0c0abcb | 160 | sms_err("No registry found."); |
82237416 | 161 | |
2e5c1ec8 MK |
162 | return default_mode; |
163 | } | |
164 | ||
18245e18 | 165 | enum sms_device_type_st smscore_registry_gettype(char *devpath) |
2e5c1ec8 | 166 | { |
18245e18 | 167 | struct smscore_registry_entry_t *entry; |
2e5c1ec8 | 168 | |
82237416 MK |
169 | entry = smscore_find_registry(devpath); |
170 | if (entry) | |
f17407a8 | 171 | return entry->type; |
f17407a8 | 172 | else |
a0c0abcb | 173 | sms_err("No registry found."); |
82237416 | 174 | |
f17407a8 MK |
175 | return -1; |
176 | } | |
2e5c1ec8 | 177 | |
82237416 MK |
178 | void smscore_registry_setmode(char *devpath, int mode) |
179 | { | |
18245e18 | 180 | struct smscore_registry_entry_t *entry; |
2e5c1ec8 | 181 | |
82237416 MK |
182 | entry = smscore_find_registry(devpath); |
183 | if (entry) | |
184 | entry->mode = mode; | |
f17407a8 | 185 | else |
a0c0abcb | 186 | sms_err("No registry found."); |
82237416 | 187 | } |
2e5c1ec8 | 188 | |
18245e18 | 189 | void smscore_registry_settype(char *devpath, enum sms_device_type_st type) |
f17407a8 | 190 | { |
18245e18 | 191 | struct smscore_registry_entry_t *entry; |
f17407a8 | 192 | |
82237416 MK |
193 | entry = smscore_find_registry(devpath); |
194 | if (entry) | |
f17407a8 | 195 | entry->type = type; |
f17407a8 | 196 | else |
a0c0abcb | 197 | sms_err("No registry found."); |
2e5c1ec8 MK |
198 | } |
199 | ||
200 | ||
a83ccdd6 | 201 | void list_add_locked(struct list_head *new, struct list_head *head, |
82237416 | 202 | spinlock_t *lock) |
2e5c1ec8 MK |
203 | { |
204 | unsigned long flags; | |
205 | ||
206 | spin_lock_irqsave(lock, flags); | |
207 | ||
208 | list_add(new, head); | |
209 | ||
210 | spin_unlock_irqrestore(lock, flags); | |
211 | } | |
212 | ||
213 | /** | |
214 | * register a client callback that called when device plugged in/unplugged | |
215 | * NOTE: if devices exist callback is called immediately for each device | |
216 | * | |
217 | * @param hotplug callback | |
218 | * | |
219 | * @return 0 on success, <0 on error. | |
220 | */ | |
221 | int smscore_register_hotplug(hotplug_t hotplug) | |
222 | { | |
18245e18 | 223 | struct smscore_device_notifyee_t *notifyee; |
2e5c1ec8 MK |
224 | struct list_head *next, *first; |
225 | int rc = 0; | |
226 | ||
227 | kmutex_lock(&g_smscore_deviceslock); | |
228 | ||
18245e18 MK |
229 | notifyee = kmalloc(sizeof(struct smscore_device_notifyee_t), |
230 | GFP_KERNEL); | |
82237416 MK |
231 | if (notifyee) { |
232 | /* now notify callback about existing devices */ | |
2e5c1ec8 | 233 | first = &g_smscore_devices; |
82237416 MK |
234 | for (next = first->next; |
235 | next != first && !rc; | |
236 | next = next->next) { | |
18245e18 MK |
237 | struct smscore_device_t *coredev = |
238 | (struct smscore_device_t *) next; | |
2e5c1ec8 MK |
239 | rc = hotplug(coredev, coredev->device, 1); |
240 | } | |
241 | ||
82237416 | 242 | if (rc >= 0) { |
2e5c1ec8 MK |
243 | notifyee->hotplug = hotplug; |
244 | list_add(¬ifyee->entry, &g_smscore_notifyees); | |
82237416 | 245 | } else |
2e5c1ec8 | 246 | kfree(notifyee); |
82237416 | 247 | } else |
2e5c1ec8 MK |
248 | rc = -ENOMEM; |
249 | ||
250 | kmutex_unlock(&g_smscore_deviceslock); | |
251 | ||
252 | return rc; | |
253 | } | |
254 | ||
255 | /** | |
256 | * unregister a client callback that called when device plugged in/unplugged | |
257 | * | |
258 | * @param hotplug callback | |
259 | * | |
260 | */ | |
261 | void smscore_unregister_hotplug(hotplug_t hotplug) | |
262 | { | |
263 | struct list_head *next, *first; | |
264 | ||
265 | kmutex_lock(&g_smscore_deviceslock); | |
266 | ||
267 | first = &g_smscore_notifyees; | |
268 | ||
82237416 | 269 | for (next = first->next; next != first;) { |
18245e18 MK |
270 | struct smscore_device_notifyee_t *notifyee = |
271 | (struct smscore_device_notifyee_t *) next; | |
2e5c1ec8 MK |
272 | next = next->next; |
273 | ||
82237416 | 274 | if (notifyee->hotplug == hotplug) { |
2e5c1ec8 MK |
275 | list_del(¬ifyee->entry); |
276 | kfree(notifyee); | |
277 | } | |
278 | } | |
279 | ||
280 | kmutex_unlock(&g_smscore_deviceslock); | |
281 | } | |
282 | ||
18245e18 | 283 | void smscore_notify_clients(struct smscore_device_t *coredev) |
2e5c1ec8 | 284 | { |
18245e18 | 285 | struct smscore_client_t *client; |
2e5c1ec8 | 286 | |
82237416 MK |
287 | /* the client must call smscore_unregister_client from remove handler */ |
288 | while (!list_empty(&coredev->clients)) { | |
18245e18 | 289 | client = (struct smscore_client_t *) coredev->clients.next; |
2e5c1ec8 MK |
290 | client->onremove_handler(client->context); |
291 | } | |
292 | } | |
293 | ||
18245e18 MK |
294 | int smscore_notify_callbacks(struct smscore_device_t *coredev, |
295 | struct device *device, int arrival) | |
2e5c1ec8 MK |
296 | { |
297 | struct list_head *next, *first; | |
298 | int rc = 0; | |
299 | ||
82237416 | 300 | /* note: must be called under g_deviceslock */ |
2e5c1ec8 MK |
301 | |
302 | first = &g_smscore_notifyees; | |
303 | ||
82237416 | 304 | for (next = first->next; next != first; next = next->next) { |
18245e18 | 305 | rc = ((struct smscore_device_notifyee_t *) next)-> |
59bf6b8e | 306 | hotplug(coredev, device, arrival); |
2e5c1ec8 MK |
307 | if (rc < 0) |
308 | break; | |
309 | } | |
310 | ||
311 | return rc; | |
312 | } | |
313 | ||
18245e18 | 314 | struct smscore_buffer_t *smscore_createbuffer(u8 *buffer, void *common_buffer, |
a83ccdd6 | 315 | dma_addr_t common_buffer_phys) |
2e5c1ec8 | 316 | { |
18245e18 MK |
317 | struct smscore_buffer_t *cb = |
318 | kmalloc(sizeof(struct smscore_buffer_t), GFP_KERNEL); | |
82237416 | 319 | if (!cb) { |
a0c0abcb | 320 | sms_info("kmalloc(...) failed"); |
2e5c1ec8 MK |
321 | return NULL; |
322 | } | |
323 | ||
324 | cb->p = buffer; | |
494d24c5 | 325 | cb->offset_in_common = buffer - (u8 *) common_buffer; |
2e5c1ec8 MK |
326 | cb->phys = common_buffer_phys + cb->offset_in_common; |
327 | ||
328 | return cb; | |
329 | } | |
330 | ||
331 | /** | |
82237416 MK |
332 | * creates coredev object for a device, prepares buffers, |
333 | * creates buffer mappings, notifies registered hotplugs about new device. | |
2e5c1ec8 | 334 | * |
59bf6b8e MK |
335 | * @param params device pointer to struct with device specific parameters |
336 | * and handlers | |
2e5c1ec8 MK |
337 | * @param coredev pointer to a value that receives created coredev object |
338 | * | |
339 | * @return 0 on success, <0 on error. | |
340 | */ | |
18245e18 MK |
341 | int smscore_register_device(struct smsdevice_params_t *params, |
342 | struct smscore_device_t **coredev) | |
2e5c1ec8 | 343 | { |
18245e18 | 344 | struct smscore_device_t *dev; |
2e5c1ec8 MK |
345 | u8 *buffer; |
346 | ||
18245e18 | 347 | dev = kzalloc(sizeof(struct smscore_device_t), GFP_KERNEL); |
82237416 | 348 | if (!dev) { |
a0c0abcb | 349 | sms_info("kzalloc(...) failed"); |
2e5c1ec8 MK |
350 | return -ENOMEM; |
351 | } | |
352 | ||
82237416 | 353 | /* init list entry so it could be safe in smscore_unregister_device */ |
2e5c1ec8 MK |
354 | INIT_LIST_HEAD(&dev->entry); |
355 | ||
82237416 | 356 | /* init queues */ |
2e5c1ec8 | 357 | INIT_LIST_HEAD(&dev->clients); |
2e5c1ec8 MK |
358 | INIT_LIST_HEAD(&dev->buffers); |
359 | ||
82237416 | 360 | /* init locks */ |
2e5c1ec8 MK |
361 | spin_lock_init(&dev->clientslock); |
362 | spin_lock_init(&dev->bufferslock); | |
363 | ||
82237416 | 364 | /* init completion events */ |
2e5c1ec8 MK |
365 | init_completion(&dev->version_ex_done); |
366 | init_completion(&dev->data_download_done); | |
367 | init_completion(&dev->trigger_done); | |
368 | init_completion(&dev->init_device_done); | |
369 | init_completion(&dev->reload_start_done); | |
370 | init_completion(&dev->resume_done); | |
371 | ||
82237416 | 372 | /* alloc common buffer */ |
2e5c1ec8 | 373 | dev->common_buffer_size = params->buffer_size * params->num_buffers; |
82237416 MK |
374 | dev->common_buffer = dma_alloc_coherent(NULL, dev->common_buffer_size, |
375 | &dev->common_buffer_phys, | |
376 | GFP_KERNEL | GFP_DMA); | |
377 | if (!dev->common_buffer) { | |
2e5c1ec8 MK |
378 | smscore_unregister_device(dev); |
379 | return -ENOMEM; | |
380 | } | |
381 | ||
82237416 MK |
382 | /* prepare dma buffers */ |
383 | for (buffer = dev->common_buffer; | |
384 | dev->num_buffers < params->num_buffers; | |
fa830e8a | 385 | dev->num_buffers++, buffer += params->buffer_size) { |
18245e18 | 386 | struct smscore_buffer_t *cb = |
59bf6b8e MK |
387 | smscore_createbuffer(buffer, dev->common_buffer, |
388 | dev->common_buffer_phys); | |
82237416 | 389 | if (!cb) { |
2e5c1ec8 MK |
390 | smscore_unregister_device(dev); |
391 | return -ENOMEM; | |
392 | } | |
393 | ||
394 | smscore_putbuffer(dev, cb); | |
395 | } | |
396 | ||
a0c0abcb | 397 | sms_info("allocated %d buffers", dev->num_buffers); |
2e5c1ec8 MK |
398 | |
399 | dev->mode = DEVICE_MODE_NONE; | |
400 | dev->context = params->context; | |
401 | dev->device = params->device; | |
402 | dev->setmode_handler = params->setmode_handler; | |
403 | dev->detectmode_handler = params->detectmode_handler; | |
404 | dev->sendrequest_handler = params->sendrequest_handler; | |
405 | dev->preload_handler = params->preload_handler; | |
406 | dev->postload_handler = params->postload_handler; | |
407 | ||
408 | dev->device_flags = params->flags; | |
409 | strcpy(dev->devpath, params->devpath); | |
410 | ||
82237416 | 411 | smscore_registry_settype(dev->devpath, params->device_type); |
f17407a8 | 412 | |
82237416 | 413 | /* add device to devices list */ |
2e5c1ec8 MK |
414 | kmutex_lock(&g_smscore_deviceslock); |
415 | list_add(&dev->entry, &g_smscore_devices); | |
416 | kmutex_unlock(&g_smscore_deviceslock); | |
417 | ||
418 | *coredev = dev; | |
419 | ||
a0c0abcb | 420 | sms_info("device %p created", dev); |
2e5c1ec8 MK |
421 | |
422 | return 0; | |
423 | } | |
424 | ||
425 | /** | |
426 | * sets initial device mode and notifies client hotplugs that device is ready | |
427 | * | |
59bf6b8e MK |
428 | * @param coredev pointer to a coredev object returned by |
429 | * smscore_register_device | |
2e5c1ec8 MK |
430 | * |
431 | * @return 0 on success, <0 on error. | |
432 | */ | |
18245e18 | 433 | int smscore_start_device(struct smscore_device_t *coredev) |
2e5c1ec8 | 434 | { |
59bf6b8e MK |
435 | int rc = smscore_set_device_mode( |
436 | coredev, smscore_registry_getmode(coredev->devpath)); | |
82237416 | 437 | if (rc < 0) { |
a0c0abcb | 438 | sms_info("set device mode faile , rc %d", rc); |
2e5c1ec8 | 439 | return rc; |
f17407a8 | 440 | } |
2e5c1ec8 MK |
441 | |
442 | kmutex_lock(&g_smscore_deviceslock); | |
443 | ||
444 | rc = smscore_notify_callbacks(coredev, coredev->device, 1); | |
445 | ||
a0c0abcb | 446 | sms_info("device %p started, rc %d", coredev, rc); |
2e5c1ec8 MK |
447 | |
448 | kmutex_unlock(&g_smscore_deviceslock); | |
449 | ||
450 | return rc; | |
451 | } | |
452 | ||
18245e18 | 453 | int smscore_sendrequest_and_wait(struct smscore_device_t *coredev, void *buffer, |
82237416 | 454 | size_t size, struct completion *completion) |
2e5c1ec8 MK |
455 | { |
456 | int rc = coredev->sendrequest_handler(coredev->context, buffer, size); | |
82237416 | 457 | if (rc < 0) { |
a0c0abcb | 458 | sms_info("sendrequest returned error %d", rc); |
2e5c1ec8 | 459 | return rc; |
f17407a8 | 460 | } |
2e5c1ec8 | 461 | |
82237416 MK |
462 | return wait_for_completion_timeout(completion, |
463 | msecs_to_jiffies(10000)) ? | |
464 | 0 : -ETIME; | |
2e5c1ec8 MK |
465 | } |
466 | ||
18245e18 MK |
467 | int smscore_load_firmware_family2(struct smscore_device_t *coredev, |
468 | void *buffer, size_t size) | |
2e5c1ec8 | 469 | { |
18245e18 MK |
470 | struct SmsFirmware_ST *firmware = (struct SmsFirmware_ST *) buffer; |
471 | struct SmsMsgHdr_ST *msg; | |
f0333e3d | 472 | u32 mem_address = firmware->StartAddress; |
a83ccdd6 | 473 | u8 *payload = firmware->Payload; |
2e5c1ec8 MK |
474 | int rc = 0; |
475 | ||
a0c0abcb MK |
476 | sms_info("loading FW to addr 0x%x size %d", |
477 | mem_address, firmware->Length); | |
82237416 | 478 | if (coredev->preload_handler) { |
2e5c1ec8 MK |
479 | rc = coredev->preload_handler(coredev->context); |
480 | if (rc < 0) | |
481 | return rc; | |
482 | } | |
483 | ||
82237416 | 484 | /* PAGE_SIZE buffer shall be enough and dma aligned */ |
e080842c | 485 | msg = kmalloc(PAGE_SIZE, GFP_KERNEL | GFP_DMA); |
2e5c1ec8 MK |
486 | if (!msg) |
487 | return -ENOMEM; | |
488 | ||
82237416 | 489 | if (coredev->mode != DEVICE_MODE_NONE) { |
2522dc13 | 490 | sms_debug("sending reload command."); |
82237416 | 491 | SMS_INIT_MSG(msg, MSG_SW_RELOAD_START_REQ, |
18245e18 | 492 | sizeof(struct SmsMsgHdr_ST)); |
82237416 MK |
493 | rc = smscore_sendrequest_and_wait(coredev, msg, |
494 | msg->msgLength, | |
495 | &coredev->reload_start_done); | |
f0333e3d | 496 | mem_address = *(u32 *) &payload[20]; |
2e5c1ec8 MK |
497 | } |
498 | ||
fa830e8a | 499 | while (size && rc >= 0) { |
18245e18 MK |
500 | struct SmsDataDownload_ST *DataMsg = |
501 | (struct SmsDataDownload_ST *) msg; | |
2e5c1ec8 MK |
502 | int payload_size = min((int) size, SMS_MAX_PAYLOAD_SIZE); |
503 | ||
82237416 | 504 | SMS_INIT_MSG(msg, MSG_SMS_DATA_DOWNLOAD_REQ, |
18245e18 | 505 | (u16)(sizeof(struct SmsMsgHdr_ST) + |
f0333e3d | 506 | sizeof(u32) + payload_size)); |
2e5c1ec8 MK |
507 | |
508 | DataMsg->MemAddr = mem_address; | |
509 | memcpy(DataMsg->Payload, payload, payload_size); | |
510 | ||
82237416 MK |
511 | if ((coredev->device_flags & SMS_ROM_NO_RESPONSE) && |
512 | (coredev->mode == DEVICE_MODE_NONE)) | |
59bf6b8e MK |
513 | rc = coredev->sendrequest_handler( |
514 | coredev->context, DataMsg, | |
515 | DataMsg->xMsgHeader.msgLength); | |
2e5c1ec8 | 516 | else |
59bf6b8e MK |
517 | rc = smscore_sendrequest_and_wait( |
518 | coredev, DataMsg, | |
519 | DataMsg->xMsgHeader.msgLength, | |
520 | &coredev->data_download_done); | |
2e5c1ec8 MK |
521 | |
522 | payload += payload_size; | |
523 | size -= payload_size; | |
524 | mem_address += payload_size; | |
525 | } | |
526 | ||
82237416 MK |
527 | if (rc >= 0) { |
528 | if (coredev->mode == DEVICE_MODE_NONE) { | |
18245e18 MK |
529 | struct SmsMsgData_ST *TriggerMsg = |
530 | (struct SmsMsgData_ST *) msg; | |
2e5c1ec8 | 531 | |
82237416 | 532 | SMS_INIT_MSG(msg, MSG_SMS_SWDOWNLOAD_TRIGGER_REQ, |
18245e18 | 533 | sizeof(struct SmsMsgHdr_ST) + |
f0333e3d | 534 | sizeof(u32) * 5); |
2e5c1ec8 | 535 | |
59bf6b8e MK |
536 | TriggerMsg->msgData[0] = firmware->StartAddress; |
537 | /* Entry point */ | |
fa830e8a MK |
538 | TriggerMsg->msgData[1] = 5; /* Priority */ |
539 | TriggerMsg->msgData[2] = 0x200; /* Stack size */ | |
540 | TriggerMsg->msgData[3] = 0; /* Parameter */ | |
541 | TriggerMsg->msgData[4] = 4; /* Task ID */ | |
2e5c1ec8 | 542 | |
82237416 | 543 | if (coredev->device_flags & SMS_ROM_NO_RESPONSE) { |
59bf6b8e MK |
544 | rc = coredev->sendrequest_handler( |
545 | coredev->context, TriggerMsg, | |
546 | TriggerMsg->xMsgHeader.msgLength); | |
2e5c1ec8 | 547 | msleep(100); |
82237416 | 548 | } else |
59bf6b8e MK |
549 | rc = smscore_sendrequest_and_wait( |
550 | coredev, TriggerMsg, | |
551 | TriggerMsg->xMsgHeader.msgLength, | |
552 | &coredev->trigger_done); | |
82237416 MK |
553 | } else { |
554 | SMS_INIT_MSG(msg, MSG_SW_RELOAD_EXEC_REQ, | |
18245e18 | 555 | sizeof(struct SmsMsgHdr_ST)); |
2e5c1ec8 | 556 | |
82237416 MK |
557 | rc = coredev->sendrequest_handler(coredev->context, |
558 | msg, msg->msgLength); | |
2e5c1ec8 | 559 | } |
82237416 | 560 | msleep(500); |
2e5c1ec8 MK |
561 | } |
562 | ||
a0c0abcb | 563 | sms_debug("rc=%d, postload=%p ", rc, |
068d6c0f | 564 | coredev->postload_handler); |
2e5c1ec8 MK |
565 | |
566 | kfree(msg); | |
567 | ||
f17407a8 | 568 | return ((rc >= 0) && coredev->postload_handler) ? |
2e5c1ec8 MK |
569 | coredev->postload_handler(coredev->context) : |
570 | rc; | |
571 | } | |
572 | ||
573 | /** | |
574 | * loads specified firmware into a buffer and calls device loadfirmware_handler | |
575 | * | |
59bf6b8e MK |
576 | * @param coredev pointer to a coredev object returned by |
577 | * smscore_register_device | |
2e5c1ec8 MK |
578 | * @param filename null-terminated string specifies firmware file name |
579 | * @param loadfirmware_handler device handler that loads firmware | |
580 | * | |
581 | * @return 0 on success, <0 on error. | |
582 | */ | |
18245e18 MK |
583 | int smscore_load_firmware_from_file(struct smscore_device_t *coredev, |
584 | char *filename, | |
82237416 | 585 | loadfirmware_t loadfirmware_handler) |
2e5c1ec8 MK |
586 | { |
587 | int rc = -ENOENT; | |
2e5c1ec8 | 588 | const struct firmware *fw; |
a83ccdd6 | 589 | u8 *fw_buffer; |
2e5c1ec8 | 590 | |
82237416 MK |
591 | if (loadfirmware_handler == NULL && !(coredev->device_flags & |
592 | SMS_DEVICE_FAMILY2)) | |
2e5c1ec8 MK |
593 | return -EINVAL; |
594 | ||
595 | rc = request_firmware(&fw, filename, coredev->device); | |
82237416 | 596 | if (rc < 0) { |
a0c0abcb | 597 | sms_info("failed to open \"%s\"", filename); |
2e5c1ec8 MK |
598 | return rc; |
599 | } | |
a0c0abcb | 600 | sms_info("read FW %s, size=%d\"", filename, fw->size); |
82237416 MK |
601 | fw_buffer = kmalloc(ALIGN(fw->size, SMS_ALLOC_ALIGNMENT), |
602 | GFP_KERNEL | GFP_DMA); | |
603 | if (fw_buffer) { | |
2e5c1ec8 MK |
604 | memcpy(fw_buffer, fw->data, fw->size); |
605 | ||
606 | rc = (coredev->device_flags & SMS_DEVICE_FAMILY2) ? | |
59bf6b8e MK |
607 | smscore_load_firmware_family2(coredev, |
608 | fw_buffer, | |
609 | fw->size) : | |
610 | loadfirmware_handler(coredev->context, | |
611 | fw_buffer, fw->size); | |
2e5c1ec8 MK |
612 | |
613 | kfree(fw_buffer); | |
82237416 | 614 | } else { |
a0c0abcb | 615 | sms_info("failed to allocate firmware buffer"); |
2e5c1ec8 MK |
616 | rc = -ENOMEM; |
617 | } | |
618 | ||
619 | release_firmware(fw); | |
620 | ||
621 | return rc; | |
622 | } | |
623 | ||
18245e18 MK |
624 | int smscore_load_firmware_from_buffer(struct smscore_device_t *coredev, |
625 | u8 *buffer, int size, int new_mode) | |
f17407a8 | 626 | { |
2522dc13 | 627 | sms_err("feature not yet implemented."); |
f17407a8 MK |
628 | return -EFAULT; |
629 | } | |
630 | ||
2e5c1ec8 | 631 | /** |
59bf6b8e MK |
632 | * notifies all clients registered with the device, notifies hotplugs, |
633 | * frees all buffers and coredev object | |
2e5c1ec8 | 634 | * |
59bf6b8e MK |
635 | * @param coredev pointer to a coredev object returned by |
636 | * smscore_register_device | |
2e5c1ec8 MK |
637 | * |
638 | * @return 0 on success, <0 on error. | |
639 | */ | |
18245e18 | 640 | void smscore_unregister_device(struct smscore_device_t *coredev) |
2e5c1ec8 | 641 | { |
18245e18 | 642 | struct smscore_buffer_t *cb; |
2e5c1ec8 | 643 | int num_buffers = 0; |
f17407a8 | 644 | int retry = 0; |
2e5c1ec8 MK |
645 | |
646 | kmutex_lock(&g_smscore_deviceslock); | |
647 | ||
648 | smscore_notify_clients(coredev); | |
649 | smscore_notify_callbacks(coredev, NULL, 0); | |
650 | ||
82237416 MK |
651 | /* at this point all buffers should be back |
652 | * onresponse must no longer be called */ | |
2e5c1ec8 | 653 | |
82237416 MK |
654 | while (1) { |
655 | while ((cb = smscore_getbuffer(coredev))) { | |
2e5c1ec8 | 656 | kfree(cb); |
fa830e8a | 657 | num_buffers++; |
2e5c1ec8 | 658 | } |
2e5c1ec8 MK |
659 | if (num_buffers == coredev->num_buffers) |
660 | break; | |
82237416 | 661 | if (++retry > 10) { |
a0c0abcb MK |
662 | sms_info("exiting although " |
663 | "not all buffers released."); | |
f17407a8 MK |
664 | break; |
665 | } | |
2e5c1ec8 | 666 | |
a0c0abcb | 667 | sms_info("waiting for %d buffer(s)", |
068d6c0f | 668 | coredev->num_buffers - num_buffers); |
2e5c1ec8 MK |
669 | msleep(100); |
670 | } | |
671 | ||
a0c0abcb | 672 | sms_info("freed %d buffers", num_buffers); |
2e5c1ec8 MK |
673 | |
674 | if (coredev->common_buffer) | |
82237416 MK |
675 | dma_free_coherent(NULL, coredev->common_buffer_size, |
676 | coredev->common_buffer, | |
677 | coredev->common_buffer_phys); | |
2e5c1ec8 MK |
678 | |
679 | list_del(&coredev->entry); | |
680 | kfree(coredev); | |
681 | ||
682 | kmutex_unlock(&g_smscore_deviceslock); | |
683 | ||
a0c0abcb | 684 | sms_info("device %p destroyed", coredev); |
2e5c1ec8 MK |
685 | } |
686 | ||
18245e18 | 687 | int smscore_detect_mode(struct smscore_device_t *coredev) |
2e5c1ec8 | 688 | { |
18245e18 | 689 | void *buffer = kmalloc(sizeof(struct SmsMsgHdr_ST) + SMS_DMA_ALIGNMENT, |
82237416 | 690 | GFP_KERNEL | GFP_DMA); |
18245e18 MK |
691 | struct SmsMsgHdr_ST *msg = |
692 | (struct SmsMsgHdr_ST *) SMS_ALIGN_ADDRESS(buffer); | |
2e5c1ec8 MK |
693 | int rc; |
694 | ||
695 | if (!buffer) | |
696 | return -ENOMEM; | |
697 | ||
18245e18 MK |
698 | SMS_INIT_MSG(msg, MSG_SMS_GET_VERSION_EX_REQ, |
699 | sizeof(struct SmsMsgHdr_ST)); | |
2e5c1ec8 | 700 | |
82237416 MK |
701 | rc = smscore_sendrequest_and_wait(coredev, msg, msg->msgLength, |
702 | &coredev->version_ex_done); | |
703 | if (rc == -ETIME) { | |
a0c0abcb | 704 | sms_err("MSG_SMS_GET_VERSION_EX_REQ failed first try"); |
2e5c1ec8 | 705 | |
82237416 MK |
706 | if (wait_for_completion_timeout(&coredev->resume_done, |
707 | msecs_to_jiffies(5000))) { | |
59bf6b8e MK |
708 | rc = smscore_sendrequest_and_wait( |
709 | coredev, msg, msg->msgLength, | |
710 | &coredev->version_ex_done); | |
2e5c1ec8 | 711 | if (rc < 0) |
a0c0abcb MK |
712 | sms_err("MSG_SMS_GET_VERSION_EX_REQ failed " |
713 | "second try, rc %d", rc); | |
82237416 | 714 | } else |
2e5c1ec8 MK |
715 | rc = -ETIME; |
716 | } | |
717 | ||
718 | kfree(buffer); | |
719 | ||
720 | return rc; | |
721 | } | |
722 | ||
82237416 | 723 | char *smscore_fw_lkup[][SMS_NUM_OF_DEVICE_TYPES] = { |
fbd05c82 MK |
724 | /*Stellar NOVA A0 Nova B0 VEGA*/ |
725 | /*DVBT*/ | |
726 | {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"}, | |
727 | /*DVBH*/ | |
728 | {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"}, | |
729 | /*TDMB*/ | |
730 | {"none", "tdmb_nova_12mhz.inp", "none", "none"}, | |
731 | /*DABIP*/ | |
732 | {"none", "none", "none", "none"}, | |
733 | /*BDA*/ | |
734 | {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"}, | |
735 | /*ISDBT*/ | |
736 | {"none", "isdbt_nova_12mhz.inp", "dvb_nova_12mhz.inp", "none"}, | |
737 | /*ISDBTBDA*/ | |
738 | {"none", "isdbt_nova_12mhz.inp", "isdbt_nova_12mhz_b0.inp", "none"}, | |
739 | /*CMMB*/ | |
740 | {"none", "none", "none", "cmmb_vega_12mhz.inp"} | |
2e5c1ec8 MK |
741 | }; |
742 | ||
f17407a8 | 743 | |
2e5c1ec8 MK |
744 | /** |
745 | * calls device handler to change mode of operation | |
746 | * NOTE: stellar/usb may disconnect when changing mode | |
747 | * | |
59bf6b8e MK |
748 | * @param coredev pointer to a coredev object returned by |
749 | * smscore_register_device | |
2e5c1ec8 MK |
750 | * @param mode requested mode of operation |
751 | * | |
752 | * @return 0 on success, <0 on error. | |
753 | */ | |
18245e18 | 754 | int smscore_set_device_mode(struct smscore_device_t *coredev, int mode) |
2e5c1ec8 MK |
755 | { |
756 | void *buffer; | |
757 | int rc = 0; | |
18245e18 | 758 | enum sms_device_type_st type; |
2e5c1ec8 | 759 | |
2522dc13 | 760 | sms_debug("set device mode to %d", mode); |
82237416 MK |
761 | if (coredev->device_flags & SMS_DEVICE_FAMILY2) { |
762 | if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_RAW_TUNER) { | |
eb250942 | 763 | sms_err("invalid mode specified %d", mode); |
2e5c1ec8 MK |
764 | return -EINVAL; |
765 | } | |
766 | ||
f17407a8 MK |
767 | smscore_registry_setmode(coredev->devpath, mode); |
768 | ||
82237416 | 769 | if (!(coredev->device_flags & SMS_DEVICE_NOT_READY)) { |
2e5c1ec8 | 770 | rc = smscore_detect_mode(coredev); |
82237416 | 771 | if (rc < 0) { |
eb250942 | 772 | sms_err("mode detect failed %d", rc); |
2e5c1ec8 | 773 | return rc; |
82237416 | 774 | } |
f17407a8 | 775 | } |
2e5c1ec8 | 776 | |
82237416 | 777 | if (coredev->mode == mode) { |
a0c0abcb | 778 | sms_info("device mode %d already set", mode); |
2e5c1ec8 MK |
779 | return 0; |
780 | } | |
781 | ||
82237416 MK |
782 | if (!(coredev->modes_supported & (1 << mode))) { |
783 | type = smscore_registry_gettype(coredev->devpath); | |
59bf6b8e MK |
784 | rc = smscore_load_firmware_from_file( |
785 | coredev, smscore_fw_lkup[mode][type], NULL); | |
82237416 | 786 | if (rc < 0) { |
eb250942 | 787 | sms_err("load firmware failed %d", rc); |
2e5c1ec8 | 788 | return rc; |
82237416 MK |
789 | } |
790 | } else | |
a0c0abcb MK |
791 | sms_info("mode %d supported by running " |
792 | "firmware", mode); | |
2e5c1ec8 | 793 | |
18245e18 MK |
794 | buffer = kmalloc(sizeof(struct SmsMsgData_ST) + |
795 | SMS_DMA_ALIGNMENT, GFP_KERNEL | GFP_DMA); | |
82237416 | 796 | if (buffer) { |
18245e18 MK |
797 | struct SmsMsgData_ST *msg = |
798 | (struct SmsMsgData_ST *) | |
799 | SMS_ALIGN_ADDRESS(buffer); | |
2e5c1ec8 | 800 | |
59bf6b8e | 801 | SMS_INIT_MSG(&msg->xMsgHeader, MSG_SMS_INIT_DEVICE_REQ, |
18245e18 | 802 | sizeof(struct SmsMsgData_ST)); |
2e5c1ec8 MK |
803 | msg->msgData[0] = mode; |
804 | ||
59bf6b8e MK |
805 | rc = smscore_sendrequest_and_wait( |
806 | coredev, msg, msg->xMsgHeader.msgLength, | |
807 | &coredev->init_device_done); | |
2e5c1ec8 MK |
808 | |
809 | kfree(buffer); | |
82237416 | 810 | } else { |
eb250942 MK |
811 | sms_err("Could not allocate buffer for " |
812 | "init device message."); | |
2e5c1ec8 | 813 | rc = -ENOMEM; |
82237416 MK |
814 | } |
815 | } else { | |
816 | if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA) { | |
eb250942 | 817 | sms_err("invalid mode specified %d", mode); |
f17407a8 MK |
818 | return -EINVAL; |
819 | } | |
820 | ||
821 | smscore_registry_setmode(coredev->devpath, mode); | |
822 | ||
2e5c1ec8 | 823 | if (coredev->detectmode_handler) |
82237416 MK |
824 | coredev->detectmode_handler(coredev->context, |
825 | &coredev->mode); | |
2e5c1ec8 MK |
826 | |
827 | if (coredev->mode != mode && coredev->setmode_handler) | |
828 | rc = coredev->setmode_handler(coredev->context, mode); | |
829 | } | |
830 | ||
82237416 | 831 | if (rc >= 0) { |
2e5c1ec8 MK |
832 | coredev->mode = mode; |
833 | coredev->device_flags &= ~SMS_DEVICE_NOT_READY; | |
834 | } | |
835 | ||
f17407a8 | 836 | if (rc != 0) |
eb250942 | 837 | sms_err("return error code %d.", rc); |
2e5c1ec8 MK |
838 | return rc; |
839 | } | |
840 | ||
841 | /** | |
842 | * calls device handler to get current mode of operation | |
843 | * | |
59bf6b8e MK |
844 | * @param coredev pointer to a coredev object returned by |
845 | * smscore_register_device | |
2e5c1ec8 MK |
846 | * |
847 | * @return current mode | |
848 | */ | |
18245e18 | 849 | int smscore_get_device_mode(struct smscore_device_t *coredev) |
2e5c1ec8 MK |
850 | { |
851 | return coredev->mode; | |
852 | } | |
853 | ||
f17407a8 MK |
854 | /** |
855 | * find client by response id & type within the clients list. | |
856 | * return client handle or NULL. | |
857 | * | |
59bf6b8e MK |
858 | * @param coredev pointer to a coredev object returned by |
859 | * smscore_register_device | |
f17407a8 | 860 | * @param data_type client data type (SMS_DONT_CARE for all types) |
82237416 | 861 | * @param id client id (SMS_DONT_CARE for all id) |
f17407a8 MK |
862 | * |
863 | */ | |
18245e18 | 864 | struct smscore_client_t *smscore_find_client(struct smscore_device_t *coredev, |
59bf6b8e | 865 | int data_type, int id) |
2e5c1ec8 | 866 | { |
18245e18 | 867 | struct smscore_client_t *client = NULL; |
2e5c1ec8 MK |
868 | struct list_head *next, *first; |
869 | unsigned long flags; | |
f17407a8 | 870 | struct list_head *firstid, *nextid; |
2e5c1ec8 | 871 | |
2e5c1ec8 MK |
872 | |
873 | spin_lock_irqsave(&coredev->clientslock, flags); | |
2e5c1ec8 | 874 | first = &coredev->clients; |
82237416 MK |
875 | for (next = first->next; |
876 | (next != first) && !client; | |
877 | next = next->next) { | |
18245e18 | 878 | firstid = &((struct smscore_client_t *)next)->idlist; |
82237416 MK |
879 | for (nextid = firstid->next; |
880 | nextid != firstid; | |
881 | nextid = nextid->next) { | |
18245e18 MK |
882 | if ((((struct smscore_idlist_t *)nextid)->id == id) && |
883 | (((struct smscore_idlist_t *)nextid)->data_type == data_type || | |
884 | (((struct smscore_idlist_t *)nextid)->data_type == 0))) { | |
885 | client = (struct smscore_client_t *) next; | |
82237416 MK |
886 | break; |
887 | } | |
2e5c1ec8 MK |
888 | } |
889 | } | |
2e5c1ec8 | 890 | spin_unlock_irqrestore(&coredev->clientslock, flags); |
2e5c1ec8 MK |
891 | return client; |
892 | } | |
893 | ||
894 | /** | |
895 | * find client by response id/type, call clients onresponse handler | |
896 | * return buffer to pool on error | |
897 | * | |
59bf6b8e MK |
898 | * @param coredev pointer to a coredev object returned by |
899 | * smscore_register_device | |
2e5c1ec8 MK |
900 | * @param cb pointer to response buffer descriptor |
901 | * | |
902 | */ | |
18245e18 MK |
903 | void smscore_onresponse(struct smscore_device_t *coredev, |
904 | struct smscore_buffer_t *cb) | |
2e5c1ec8 | 905 | { |
18245e18 MK |
906 | struct SmsMsgHdr_ST *phdr = |
907 | (struct SmsMsgHdr_ST *)((u8 *) cb->p + cb->offset); | |
908 | struct smscore_client_t *client = | |
59bf6b8e | 909 | smscore_find_client(coredev, phdr->msgType, phdr->msgDstId); |
2e5c1ec8 MK |
910 | int rc = -EBUSY; |
911 | ||
fbd05c82 MK |
912 | static unsigned long last_sample_time; /* = 0; */ |
913 | static int data_total; /* = 0; */ | |
2e5c1ec8 MK |
914 | unsigned long time_now = jiffies_to_msecs(jiffies); |
915 | ||
916 | if (!last_sample_time) | |
917 | last_sample_time = time_now; | |
918 | ||
fa830e8a | 919 | if (time_now - last_sample_time > 10000) { |
a0c0abcb | 920 | sms_debug("\ndata rate %d bytes/secs", |
068d6c0f MK |
921 | (int)((data_total * 1000) / |
922 | (time_now - last_sample_time))); | |
2e5c1ec8 MK |
923 | |
924 | last_sample_time = time_now; | |
925 | data_total = 0; | |
926 | } | |
927 | ||
928 | data_total += cb->size; | |
82237416 MK |
929 | /* If no client registered for type & id, |
930 | * check for control client where type is not registered */ | |
2e5c1ec8 MK |
931 | if (client) |
932 | rc = client->onresponse_handler(client->context, cb); | |
933 | ||
82237416 MK |
934 | if (rc < 0) { |
935 | switch (phdr->msgType) { | |
936 | case MSG_SMS_GET_VERSION_EX_RES: | |
2e5c1ec8 | 937 | { |
18245e18 MK |
938 | struct SmsVersionRes_ST *ver = |
939 | (struct SmsVersionRes_ST *) phdr; | |
a0c0abcb MK |
940 | sms_debug("MSG_SMS_GET_VERSION_EX_RES " |
941 | "id %d prots 0x%x ver %d.%d", | |
068d6c0f MK |
942 | ver->FirmwareId, ver->SupportedProtocols, |
943 | ver->RomVersionMajor, ver->RomVersionMinor); | |
2e5c1ec8 | 944 | |
82237416 MK |
945 | coredev->mode = ver->FirmwareId == 255 ? |
946 | DEVICE_MODE_NONE : ver->FirmwareId; | |
947 | coredev->modes_supported = ver->SupportedProtocols; | |
2e5c1ec8 | 948 | |
82237416 MK |
949 | complete(&coredev->version_ex_done); |
950 | break; | |
951 | } | |
952 | case MSG_SMS_INIT_DEVICE_RES: | |
a0c0abcb | 953 | sms_debug("MSG_SMS_INIT_DEVICE_RES"); |
82237416 MK |
954 | complete(&coredev->init_device_done); |
955 | break; | |
956 | case MSG_SW_RELOAD_START_RES: | |
a0c0abcb | 957 | sms_debug("MSG_SW_RELOAD_START_RES"); |
82237416 MK |
958 | complete(&coredev->reload_start_done); |
959 | break; | |
960 | case MSG_SMS_DATA_DOWNLOAD_RES: | |
961 | complete(&coredev->data_download_done); | |
962 | break; | |
963 | case MSG_SW_RELOAD_EXEC_RES: | |
a0c0abcb | 964 | sms_debug("MSG_SW_RELOAD_EXEC_RES"); |
82237416 MK |
965 | break; |
966 | case MSG_SMS_SWDOWNLOAD_TRIGGER_RES: | |
a0c0abcb | 967 | sms_debug("MSG_SMS_SWDOWNLOAD_TRIGGER_RES"); |
82237416 MK |
968 | complete(&coredev->trigger_done); |
969 | break; | |
970 | case MSG_SMS_SLEEP_RESUME_COMP_IND: | |
971 | complete(&coredev->resume_done); | |
972 | break; | |
973 | default: | |
974 | break; | |
2e5c1ec8 | 975 | } |
2e5c1ec8 MK |
976 | smscore_putbuffer(coredev, cb); |
977 | } | |
978 | } | |
979 | ||
980 | /** | |
981 | * return pointer to next free buffer descriptor from core pool | |
982 | * | |
59bf6b8e MK |
983 | * @param coredev pointer to a coredev object returned by |
984 | * smscore_register_device | |
2e5c1ec8 MK |
985 | * |
986 | * @return pointer to descriptor on success, NULL on error. | |
987 | */ | |
18245e18 | 988 | struct smscore_buffer_t *smscore_getbuffer(struct smscore_device_t *coredev) |
2e5c1ec8 | 989 | { |
18245e18 | 990 | struct smscore_buffer_t *cb = NULL; |
2e5c1ec8 MK |
991 | unsigned long flags; |
992 | ||
993 | spin_lock_irqsave(&coredev->bufferslock, flags); | |
994 | ||
82237416 | 995 | if (!list_empty(&coredev->buffers)) { |
18245e18 | 996 | cb = (struct smscore_buffer_t *) coredev->buffers.next; |
2e5c1ec8 MK |
997 | list_del(&cb->entry); |
998 | } | |
999 | ||
1000 | spin_unlock_irqrestore(&coredev->bufferslock, flags); | |
1001 | ||
1002 | return cb; | |
1003 | } | |
1004 | ||
1005 | /** | |
1006 | * return buffer descriptor to a pool | |
1007 | * | |
59bf6b8e MK |
1008 | * @param coredev pointer to a coredev object returned by |
1009 | * smscore_register_device | |
2e5c1ec8 MK |
1010 | * @param cb pointer buffer descriptor |
1011 | * | |
1012 | */ | |
18245e18 MK |
1013 | void smscore_putbuffer(struct smscore_device_t *coredev, |
1014 | struct smscore_buffer_t *cb) | |
2e5c1ec8 MK |
1015 | { |
1016 | list_add_locked(&cb->entry, &coredev->buffers, &coredev->bufferslock); | |
1017 | } | |
1018 | ||
18245e18 MK |
1019 | int smscore_validate_client(struct smscore_device_t *coredev, |
1020 | struct smscore_client_t *client, | |
1021 | int data_type, int id) | |
2e5c1ec8 | 1022 | { |
18245e18 MK |
1023 | struct smscore_idlist_t *listentry; |
1024 | struct smscore_client_t *registered_client; | |
2e5c1ec8 | 1025 | |
82237416 | 1026 | if (!client) { |
2522dc13 | 1027 | sms_err("bad parameter."); |
f17407a8 MK |
1028 | return -EFAULT; |
1029 | } | |
1030 | registered_client = smscore_find_client(coredev, data_type, id); | |
fa830e8a | 1031 | if (registered_client == client) |
2e5c1ec8 | 1032 | return 0; |
fa830e8a | 1033 | |
82237416 | 1034 | if (registered_client) { |
2522dc13 | 1035 | sms_err("The msg ID already registered to another client."); |
f17407a8 MK |
1036 | return -EEXIST; |
1037 | } | |
18245e18 | 1038 | listentry = kzalloc(sizeof(struct smscore_idlist_t), GFP_KERNEL); |
82237416 | 1039 | if (!listentry) { |
2522dc13 | 1040 | sms_err("Can't allocate memory for client id."); |
2e5c1ec8 | 1041 | return -ENOMEM; |
f17407a8 MK |
1042 | } |
1043 | listentry->id = id; | |
1044 | listentry->data_type = data_type; | |
82237416 MK |
1045 | list_add_locked(&listentry->entry, &client->idlist, |
1046 | &coredev->clientslock); | |
2e5c1ec8 MK |
1047 | return 0; |
1048 | } | |
1049 | ||
1050 | /** | |
1051 | * creates smsclient object, check that id is taken by another client | |
1052 | * | |
1053 | * @param coredev pointer to a coredev object from clients hotplug | |
1054 | * @param initial_id all messages with this id would be sent to this client | |
1055 | * @param data_type all messages of this type would be sent to this client | |
ca783736 MK |
1056 | * @param onresponse_handler client handler that is called to |
1057 | * process incoming messages | |
2e5c1ec8 MK |
1058 | * @param onremove_handler client handler that is called when device is removed |
1059 | * @param context client-specific context | |
1060 | * @param client pointer to a value that receives created smsclient object | |
1061 | * | |
1062 | * @return 0 on success, <0 on error. | |
1063 | */ | |
18245e18 MK |
1064 | int smscore_register_client(struct smscore_device_t *coredev, |
1065 | struct smsclient_params_t *params, | |
1066 | struct smscore_client_t **client) | |
2e5c1ec8 | 1067 | { |
18245e18 | 1068 | struct smscore_client_t *newclient; |
82237416 MK |
1069 | /* check that no other channel with same parameters exists */ |
1070 | if (smscore_find_client(coredev, params->data_type, | |
1071 | params->initial_id)) { | |
2522dc13 | 1072 | sms_err("Client already exist."); |
2e5c1ec8 | 1073 | return -EEXIST; |
f17407a8 | 1074 | } |
2e5c1ec8 | 1075 | |
18245e18 | 1076 | newclient = kzalloc(sizeof(struct smscore_client_t), GFP_KERNEL); |
82237416 | 1077 | if (!newclient) { |
2522dc13 | 1078 | sms_err("Failed to allocate memory for client."); |
f17407a8 | 1079 | return -ENOMEM; |
2e5c1ec8 MK |
1080 | } |
1081 | ||
82237416 | 1082 | INIT_LIST_HEAD(&newclient->idlist); |
2e5c1ec8 | 1083 | newclient->coredev = coredev; |
2e5c1ec8 MK |
1084 | newclient->onresponse_handler = params->onresponse_handler; |
1085 | newclient->onremove_handler = params->onremove_handler; | |
1086 | newclient->context = params->context; | |
82237416 MK |
1087 | list_add_locked(&newclient->entry, &coredev->clients, |
1088 | &coredev->clientslock); | |
1089 | smscore_validate_client(coredev, newclient, params->data_type, | |
1090 | params->initial_id); | |
2e5c1ec8 | 1091 | *client = newclient; |
2522dc13 MK |
1092 | sms_debug("%p %d %d", params->context, params->data_type, |
1093 | params->initial_id); | |
2e5c1ec8 MK |
1094 | |
1095 | return 0; | |
1096 | } | |
1097 | ||
1098 | /** | |
1099 | * frees smsclient object and all subclients associated with it | |
1100 | * | |
59bf6b8e MK |
1101 | * @param client pointer to smsclient object returned by |
1102 | * smscore_register_client | |
2e5c1ec8 MK |
1103 | * |
1104 | */ | |
18245e18 | 1105 | void smscore_unregister_client(struct smscore_client_t *client) |
2e5c1ec8 | 1106 | { |
18245e18 | 1107 | struct smscore_device_t *coredev = client->coredev; |
2e5c1ec8 MK |
1108 | unsigned long flags; |
1109 | ||
1110 | spin_lock_irqsave(&coredev->clientslock, flags); | |
1111 | ||
2e5c1ec8 | 1112 | |
82237416 | 1113 | while (!list_empty(&client->idlist)) { |
18245e18 MK |
1114 | struct smscore_idlist_t *identry = |
1115 | (struct smscore_idlist_t *) client->idlist.next; | |
82237416 MK |
1116 | list_del(&identry->entry); |
1117 | kfree(identry); | |
2e5c1ec8 MK |
1118 | } |
1119 | ||
a0c0abcb | 1120 | sms_info("%p", client->context); |
2e5c1ec8 MK |
1121 | |
1122 | list_del(&client->entry); | |
1123 | kfree(client); | |
1124 | ||
1125 | spin_unlock_irqrestore(&coredev->clientslock, flags); | |
1126 | } | |
1127 | ||
1128 | /** | |
1129 | * verifies that source id is not taken by another client, | |
1130 | * calls device handler to send requests to the device | |
1131 | * | |
59bf6b8e MK |
1132 | * @param client pointer to smsclient object returned by |
1133 | * smscore_register_client | |
2e5c1ec8 MK |
1134 | * @param buffer pointer to a request buffer |
1135 | * @param size size (in bytes) of request buffer | |
1136 | * | |
1137 | * @return 0 on success, <0 on error. | |
1138 | */ | |
18245e18 MK |
1139 | int smsclient_sendrequest(struct smscore_client_t *client, |
1140 | void *buffer, size_t size) | |
2e5c1ec8 | 1141 | { |
18245e18 MK |
1142 | struct smscore_device_t *coredev; |
1143 | struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *) buffer; | |
f17407a8 MK |
1144 | int rc; |
1145 | ||
82237416 | 1146 | if (client == NULL) { |
a0c0abcb | 1147 | sms_err("Got NULL client"); |
f17407a8 MK |
1148 | return -EINVAL; |
1149 | } | |
1150 | ||
1151 | coredev = client->coredev; | |
2e5c1ec8 | 1152 | |
82237416 MK |
1153 | /* check that no other channel with same id exists */ |
1154 | if (coredev == NULL) { | |
a0c0abcb | 1155 | sms_err("Got NULL coredev"); |
f17407a8 MK |
1156 | return -EINVAL; |
1157 | } | |
1158 | ||
82237416 MK |
1159 | rc = smscore_validate_client(client->coredev, client, 0, |
1160 | phdr->msgSrcId); | |
2e5c1ec8 MK |
1161 | if (rc < 0) |
1162 | return rc; | |
1163 | ||
1164 | return coredev->sendrequest_handler(coredev->context, buffer, size); | |
1165 | } | |
1166 | ||
1167 | /** | |
1168 | * return the size of large (common) buffer | |
1169 | * | |
1170 | * @param coredev pointer to a coredev object from clients hotplug | |
1171 | * | |
1172 | * @return size (in bytes) of the buffer | |
1173 | */ | |
18245e18 | 1174 | int smscore_get_common_buffer_size(struct smscore_device_t *coredev) |
2e5c1ec8 MK |
1175 | { |
1176 | return coredev->common_buffer_size; | |
1177 | } | |
1178 | ||
1179 | /** | |
1180 | * maps common buffer (if supported by platform) | |
1181 | * | |
1182 | * @param coredev pointer to a coredev object from clients hotplug | |
1183 | * @param vma pointer to vma struct from mmap handler | |
1184 | * | |
1185 | * @return 0 on success, <0 on error. | |
1186 | */ | |
18245e18 | 1187 | int smscore_map_common_buffer(struct smscore_device_t *coredev, |
a83ccdd6 | 1188 | struct vm_area_struct *vma) |
2e5c1ec8 | 1189 | { |
82237416 MK |
1190 | unsigned long end = vma->vm_end, |
1191 | start = vma->vm_start, | |
1192 | size = PAGE_ALIGN(coredev->common_buffer_size); | |
2e5c1ec8 | 1193 | |
82237416 MK |
1194 | if (!(vma->vm_flags & (VM_READ | VM_SHARED)) || |
1195 | (vma->vm_flags & VM_WRITE)) { | |
eb250942 | 1196 | sms_err("invalid vm flags"); |
2e5c1ec8 MK |
1197 | return -EINVAL; |
1198 | } | |
1199 | ||
82237416 | 1200 | if ((end - start) != size) { |
eb250942 | 1201 | sms_err("invalid size %d expected %d", |
a0c0abcb | 1202 | (int)(end - start), (int) size); |
2e5c1ec8 MK |
1203 | return -EINVAL; |
1204 | } | |
1205 | ||
82237416 MK |
1206 | if (remap_pfn_range(vma, start, |
1207 | coredev->common_buffer_phys >> PAGE_SHIFT, | |
df0462e7 | 1208 | size, pgprot_noncached(vma->vm_page_prot))) { |
eb250942 | 1209 | sms_err("remap_page_range failed"); |
2e5c1ec8 MK |
1210 | return -EAGAIN; |
1211 | } | |
1212 | ||
1213 | return 0; | |
1214 | } | |
1215 | ||
1216 | int smscore_module_init(void) | |
1217 | { | |
c6465799 | 1218 | int rc = 0; |
2e5c1ec8 MK |
1219 | |
1220 | INIT_LIST_HEAD(&g_smscore_notifyees); | |
1221 | INIT_LIST_HEAD(&g_smscore_devices); | |
1222 | kmutex_init(&g_smscore_deviceslock); | |
1223 | ||
1224 | INIT_LIST_HEAD(&g_smscore_registry); | |
1225 | kmutex_init(&g_smscore_registrylock); | |
1226 | ||
eae55660 ST |
1227 | /* USB Register */ |
1228 | rc = smsusb_register(); | |
1229 | ||
1230 | /* DVB Register */ | |
1231 | rc = smsdvb_register(); | |
1232 | ||
a0c0abcb | 1233 | sms_debug("rc %d", rc); |
2e5c1ec8 MK |
1234 | |
1235 | return rc; | |
1236 | } | |
1237 | ||
1238 | void smscore_module_exit(void) | |
1239 | { | |
eae55660 | 1240 | |
2e5c1ec8 | 1241 | kmutex_lock(&g_smscore_deviceslock); |
82237416 | 1242 | while (!list_empty(&g_smscore_notifyees)) { |
18245e18 MK |
1243 | struct smscore_device_notifyee_t *notifyee = |
1244 | (struct smscore_device_notifyee_t *) | |
1245 | g_smscore_notifyees.next; | |
2e5c1ec8 MK |
1246 | |
1247 | list_del(¬ifyee->entry); | |
1248 | kfree(notifyee); | |
1249 | } | |
1250 | kmutex_unlock(&g_smscore_deviceslock); | |
1251 | ||
1252 | kmutex_lock(&g_smscore_registrylock); | |
82237416 | 1253 | while (!list_empty(&g_smscore_registry)) { |
18245e18 MK |
1254 | struct smscore_registry_entry_t *entry = |
1255 | (struct smscore_registry_entry_t *) | |
1256 | g_smscore_registry.next; | |
2e5c1ec8 MK |
1257 | |
1258 | list_del(&entry->entry); | |
1259 | kfree(entry); | |
1260 | } | |
1261 | kmutex_unlock(&g_smscore_registrylock); | |
1262 | ||
eae55660 ST |
1263 | /* DVB UnRegister */ |
1264 | smsdvb_unregister(); | |
1265 | ||
1266 | /* Unregister USB */ | |
1267 | smsusb_unregister(); | |
1268 | ||
a0c0abcb | 1269 | sms_debug(""); |
2e5c1ec8 MK |
1270 | } |
1271 | ||
1272 | module_init(smscore_module_init); | |
1273 | module_exit(smscore_module_exit); | |
1274 | ||
1275 | MODULE_DESCRIPTION("smscore"); | |
82237416 | 1276 | MODULE_AUTHOR("Siano Mobile Silicon,,, (doronc@siano-ms.com)"); |
2e5c1ec8 | 1277 | MODULE_LICENSE("GPL"); |