Commit | Line | Data |
---|---|---|
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 | |
82237416 MK |
36 | #define PERROR(fmt, args...)\ |
37 | printk(KERN_ERR "smscore error: line %d- %s(): " fmt, \ | |
38 | __LINE__, __func__, ## args) | |
f17407a8 MK |
39 | |
40 | #ifdef SMSCORE_DEBUG | |
f17407a8 | 41 | #undef PWARNING |
82237416 MK |
42 | # define PWARNING(fmt, args...) printk(KERN_INFO "smscore warning: " \ |
43 | "line %d- %s(): " fmt, \ | |
44 | __LINE__, __func__, ## args) | |
f17407a8 | 45 | #undef PDEBUG /* undef it, just in case */ |
82237416 MK |
46 | # define PDEBUG(fmt, args...) printk(KERN_INFO "smscore - %s(): " fmt, \ |
47 | __func__, ## args) | |
f17407a8 | 48 | #else /*SMSCORE_DEBUG*/ |
f17407a8 MK |
49 | #define PDEBUG(fmt, args...) |
50 | #define PWARNING(fmt, args...) | |
f17407a8 MK |
51 | #endif |
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 | ||
82237416 | 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); | |
82237416 MK |
138 | for (next = g_smscore_registry.next; |
139 | next != &g_smscore_registry; | |
140 | next = next->next) { | |
2e5c1ec8 | 141 | entry = (smscore_registry_entry_t *) next; |
82237416 | 142 | if (!strcmp(entry->devpath, devpath)) { |
2e5c1ec8 | 143 | kmutex_unlock(&g_smscore_registrylock); |
f17407a8 | 144 | return entry; |
2e5c1ec8 MK |
145 | } |
146 | } | |
82237416 MK |
147 | entry = (smscore_registry_entry_t *) |
148 | kmalloc(sizeof(smscore_registry_entry_t), GFP_KERNEL); | |
149 | if (entry) { | |
2e5c1ec8 MK |
150 | entry->mode = default_mode; |
151 | strcpy(entry->devpath, devpath); | |
2e5c1ec8 | 152 | list_add(&entry->entry, &g_smscore_registry); |
82237416 MK |
153 | } else |
154 | printk(KERN_ERR "%s failed to create smscore_registry.\n", | |
155 | __func__); | |
2e5c1ec8 | 156 | kmutex_unlock(&g_smscore_registrylock); |
f17407a8 MK |
157 | return entry; |
158 | } | |
2e5c1ec8 | 159 | |
82237416 | 160 | int smscore_registry_getmode(char *devpath) |
f17407a8 MK |
161 | { |
162 | smscore_registry_entry_t *entry; | |
163 | ||
82237416 MK |
164 | entry = smscore_find_registry(devpath); |
165 | if (entry) | |
f17407a8 | 166 | return entry->mode; |
f17407a8 | 167 | else |
82237416 MK |
168 | printk(KERN_ERR "%s No registry found.\n", __func__); |
169 | ||
2e5c1ec8 MK |
170 | return default_mode; |
171 | } | |
172 | ||
82237416 | 173 | sms_device_type_st smscore_registry_gettype(char *devpath) |
2e5c1ec8 MK |
174 | { |
175 | smscore_registry_entry_t *entry; | |
2e5c1ec8 | 176 | |
82237416 MK |
177 | entry = smscore_find_registry(devpath); |
178 | if (entry) | |
f17407a8 | 179 | return entry->type; |
f17407a8 | 180 | else |
82237416 MK |
181 | printk(KERN_ERR "%s No registry found.\n", __func__); |
182 | ||
f17407a8 MK |
183 | return -1; |
184 | } | |
2e5c1ec8 | 185 | |
82237416 MK |
186 | void smscore_registry_setmode(char *devpath, int mode) |
187 | { | |
f17407a8 | 188 | smscore_registry_entry_t *entry; |
2e5c1ec8 | 189 | |
82237416 MK |
190 | entry = smscore_find_registry(devpath); |
191 | if (entry) | |
192 | entry->mode = mode; | |
f17407a8 | 193 | else |
82237416 MK |
194 | printk(KERN_ERR "%s No registry found.\n", __func__); |
195 | } | |
2e5c1ec8 | 196 | |
82237416 | 197 | void smscore_registry_settype(char *devpath, sms_device_type_st type) |
f17407a8 MK |
198 | { |
199 | smscore_registry_entry_t *entry; | |
200 | ||
82237416 MK |
201 | entry = smscore_find_registry(devpath); |
202 | if (entry) | |
f17407a8 | 203 | entry->type = type; |
f17407a8 | 204 | else |
82237416 | 205 | printk(KERN_ERR "%s No registry found.\n", __func__); |
2e5c1ec8 MK |
206 | } |
207 | ||
208 | ||
f17407a8 | 209 | |
a83ccdd6 | 210 | void list_add_locked(struct list_head *new, struct list_head *head, |
82237416 | 211 | spinlock_t *lock) |
2e5c1ec8 MK |
212 | { |
213 | unsigned long flags; | |
214 | ||
215 | spin_lock_irqsave(lock, flags); | |
216 | ||
217 | list_add(new, head); | |
218 | ||
219 | spin_unlock_irqrestore(lock, flags); | |
220 | } | |
221 | ||
222 | /** | |
223 | * register a client callback that called when device plugged in/unplugged | |
224 | * NOTE: if devices exist callback is called immediately for each device | |
225 | * | |
226 | * @param hotplug callback | |
227 | * | |
228 | * @return 0 on success, <0 on error. | |
229 | */ | |
230 | int smscore_register_hotplug(hotplug_t hotplug) | |
231 | { | |
232 | smscore_device_notifyee_t *notifyee; | |
233 | struct list_head *next, *first; | |
234 | int rc = 0; | |
235 | ||
236 | kmutex_lock(&g_smscore_deviceslock); | |
237 | ||
238 | notifyee = kmalloc(sizeof(smscore_device_notifyee_t), GFP_KERNEL); | |
82237416 MK |
239 | if (notifyee) { |
240 | /* now notify callback about existing devices */ | |
2e5c1ec8 | 241 | first = &g_smscore_devices; |
82237416 MK |
242 | for (next = first->next; |
243 | next != first && !rc; | |
244 | next = next->next) { | |
2e5c1ec8 MK |
245 | smscore_device_t *coredev = (smscore_device_t *) next; |
246 | rc = hotplug(coredev, coredev->device, 1); | |
247 | } | |
248 | ||
82237416 | 249 | if (rc >= 0) { |
2e5c1ec8 MK |
250 | notifyee->hotplug = hotplug; |
251 | list_add(¬ifyee->entry, &g_smscore_notifyees); | |
82237416 | 252 | } else |
2e5c1ec8 | 253 | kfree(notifyee); |
82237416 | 254 | } else |
2e5c1ec8 MK |
255 | rc = -ENOMEM; |
256 | ||
257 | kmutex_unlock(&g_smscore_deviceslock); | |
258 | ||
259 | return rc; | |
260 | } | |
261 | ||
262 | /** | |
263 | * unregister a client callback that called when device plugged in/unplugged | |
264 | * | |
265 | * @param hotplug callback | |
266 | * | |
267 | */ | |
268 | void smscore_unregister_hotplug(hotplug_t hotplug) | |
269 | { | |
270 | struct list_head *next, *first; | |
271 | ||
272 | kmutex_lock(&g_smscore_deviceslock); | |
273 | ||
274 | first = &g_smscore_notifyees; | |
275 | ||
82237416 MK |
276 | for (next = first->next; next != first;) { |
277 | smscore_device_notifyee_t *notifyee = | |
278 | (smscore_device_notifyee_t *) next; | |
2e5c1ec8 MK |
279 | next = next->next; |
280 | ||
82237416 | 281 | if (notifyee->hotplug == hotplug) { |
2e5c1ec8 MK |
282 | list_del(¬ifyee->entry); |
283 | kfree(notifyee); | |
284 | } | |
285 | } | |
286 | ||
287 | kmutex_unlock(&g_smscore_deviceslock); | |
288 | } | |
289 | ||
290 | void smscore_notify_clients(smscore_device_t *coredev) | |
291 | { | |
a83ccdd6 | 292 | smscore_client_t *client; |
2e5c1ec8 | 293 | |
82237416 MK |
294 | /* the client must call smscore_unregister_client from remove handler */ |
295 | while (!list_empty(&coredev->clients)) { | |
2e5c1ec8 MK |
296 | client = (smscore_client_t *) coredev->clients.next; |
297 | client->onremove_handler(client->context); | |
298 | } | |
299 | } | |
300 | ||
82237416 MK |
301 | int smscore_notify_callbacks(smscore_device_t *coredev, struct device *device, |
302 | int arrival) | |
2e5c1ec8 MK |
303 | { |
304 | struct list_head *next, *first; | |
305 | int rc = 0; | |
306 | ||
82237416 | 307 | /* note: must be called under g_deviceslock */ |
2e5c1ec8 MK |
308 | |
309 | first = &g_smscore_notifyees; | |
310 | ||
82237416 | 311 | for (next = first->next; next != first; next = next->next) { |
59bf6b8e MK |
312 | rc = ((smscore_device_notifyee_t *) next)-> |
313 | hotplug(coredev, device, arrival); | |
2e5c1ec8 MK |
314 | if (rc < 0) |
315 | break; | |
316 | } | |
317 | ||
318 | return rc; | |
319 | } | |
320 | ||
a83ccdd6 MK |
321 | smscore_buffer_t *smscore_createbuffer(u8 *buffer, void *common_buffer, |
322 | dma_addr_t common_buffer_phys) | |
2e5c1ec8 MK |
323 | { |
324 | smscore_buffer_t *cb = kmalloc(sizeof(smscore_buffer_t), GFP_KERNEL); | |
82237416 | 325 | if (!cb) { |
18658117 | 326 | printk(KERN_INFO "%s kmalloc(...) failed\n", __func__); |
2e5c1ec8 MK |
327 | return NULL; |
328 | } | |
329 | ||
330 | cb->p = buffer; | |
494d24c5 | 331 | cb->offset_in_common = buffer - (u8 *) common_buffer; |
2e5c1ec8 MK |
332 | cb->phys = common_buffer_phys + cb->offset_in_common; |
333 | ||
334 | return cb; | |
335 | } | |
336 | ||
337 | /** | |
82237416 MK |
338 | * creates coredev object for a device, prepares buffers, |
339 | * creates buffer mappings, notifies registered hotplugs about new device. | |
2e5c1ec8 | 340 | * |
59bf6b8e MK |
341 | * @param params device pointer to struct with device specific parameters |
342 | * and handlers | |
2e5c1ec8 MK |
343 | * @param coredev pointer to a value that receives created coredev object |
344 | * | |
345 | * @return 0 on success, <0 on error. | |
346 | */ | |
82237416 MK |
347 | int smscore_register_device(smsdevice_params_t *params, |
348 | smscore_device_t **coredev) | |
2e5c1ec8 | 349 | { |
a83ccdd6 | 350 | smscore_device_t *dev; |
2e5c1ec8 MK |
351 | u8 *buffer; |
352 | ||
353 | dev = kzalloc(sizeof(smscore_device_t), GFP_KERNEL); | |
82237416 | 354 | if (!dev) { |
18658117 | 355 | printk(KERN_INFO "%s kzalloc(...) failed\n", __func__); |
2e5c1ec8 MK |
356 | return -ENOMEM; |
357 | } | |
358 | ||
82237416 | 359 | /* init list entry so it could be safe in smscore_unregister_device */ |
2e5c1ec8 MK |
360 | INIT_LIST_HEAD(&dev->entry); |
361 | ||
82237416 | 362 | /* init queues */ |
2e5c1ec8 | 363 | INIT_LIST_HEAD(&dev->clients); |
2e5c1ec8 MK |
364 | INIT_LIST_HEAD(&dev->buffers); |
365 | ||
82237416 | 366 | /* init locks */ |
2e5c1ec8 MK |
367 | spin_lock_init(&dev->clientslock); |
368 | spin_lock_init(&dev->bufferslock); | |
369 | ||
82237416 | 370 | /* init completion events */ |
2e5c1ec8 MK |
371 | init_completion(&dev->version_ex_done); |
372 | init_completion(&dev->data_download_done); | |
373 | init_completion(&dev->trigger_done); | |
374 | init_completion(&dev->init_device_done); | |
375 | init_completion(&dev->reload_start_done); | |
376 | init_completion(&dev->resume_done); | |
377 | ||
82237416 | 378 | /* alloc common buffer */ |
2e5c1ec8 | 379 | dev->common_buffer_size = params->buffer_size * params->num_buffers; |
82237416 MK |
380 | dev->common_buffer = dma_alloc_coherent(NULL, dev->common_buffer_size, |
381 | &dev->common_buffer_phys, | |
382 | GFP_KERNEL | GFP_DMA); | |
383 | if (!dev->common_buffer) { | |
2e5c1ec8 MK |
384 | smscore_unregister_device(dev); |
385 | return -ENOMEM; | |
386 | } | |
387 | ||
82237416 MK |
388 | /* prepare dma buffers */ |
389 | for (buffer = dev->common_buffer; | |
390 | dev->num_buffers < params->num_buffers; | |
fa830e8a | 391 | dev->num_buffers++, buffer += params->buffer_size) { |
59bf6b8e MK |
392 | smscore_buffer_t *cb = |
393 | smscore_createbuffer(buffer, dev->common_buffer, | |
394 | dev->common_buffer_phys); | |
82237416 | 395 | if (!cb) { |
2e5c1ec8 MK |
396 | smscore_unregister_device(dev); |
397 | return -ENOMEM; | |
398 | } | |
399 | ||
400 | smscore_putbuffer(dev, cb); | |
401 | } | |
402 | ||
82237416 MK |
403 | printk(KERN_INFO "%s allocated %d buffers\n", |
404 | __func__, dev->num_buffers); | |
2e5c1ec8 MK |
405 | |
406 | dev->mode = DEVICE_MODE_NONE; | |
407 | dev->context = params->context; | |
408 | dev->device = params->device; | |
409 | dev->setmode_handler = params->setmode_handler; | |
410 | dev->detectmode_handler = params->detectmode_handler; | |
411 | dev->sendrequest_handler = params->sendrequest_handler; | |
412 | dev->preload_handler = params->preload_handler; | |
413 | dev->postload_handler = params->postload_handler; | |
414 | ||
415 | dev->device_flags = params->flags; | |
416 | strcpy(dev->devpath, params->devpath); | |
417 | ||
82237416 | 418 | smscore_registry_settype(dev->devpath, params->device_type); |
f17407a8 | 419 | |
82237416 | 420 | /* add device to devices list */ |
2e5c1ec8 MK |
421 | kmutex_lock(&g_smscore_deviceslock); |
422 | list_add(&dev->entry, &g_smscore_devices); | |
423 | kmutex_unlock(&g_smscore_deviceslock); | |
424 | ||
425 | *coredev = dev; | |
426 | ||
18658117 | 427 | printk(KERN_INFO "%s device %p created\n", __func__, dev); |
2e5c1ec8 MK |
428 | |
429 | return 0; | |
430 | } | |
431 | ||
432 | /** | |
433 | * sets initial device mode and notifies client hotplugs that device is ready | |
434 | * | |
59bf6b8e MK |
435 | * @param coredev pointer to a coredev object returned by |
436 | * smscore_register_device | |
2e5c1ec8 MK |
437 | * |
438 | * @return 0 on success, <0 on error. | |
439 | */ | |
440 | int smscore_start_device(smscore_device_t *coredev) | |
441 | { | |
59bf6b8e MK |
442 | int rc = smscore_set_device_mode( |
443 | coredev, smscore_registry_getmode(coredev->devpath)); | |
82237416 | 444 | if (rc < 0) { |
59bf6b8e MK |
445 | printk(KERN_INFO "%s set device mode faile , rc %d\n", |
446 | __func__, rc); | |
2e5c1ec8 | 447 | return rc; |
f17407a8 | 448 | } |
2e5c1ec8 MK |
449 | |
450 | kmutex_lock(&g_smscore_deviceslock); | |
451 | ||
452 | rc = smscore_notify_callbacks(coredev, coredev->device, 1); | |
453 | ||
82237416 MK |
454 | printk(KERN_INFO "%s device %p started, rc %d\n", |
455 | __func__, coredev, rc); | |
2e5c1ec8 MK |
456 | |
457 | kmutex_unlock(&g_smscore_deviceslock); | |
458 | ||
459 | return rc; | |
460 | } | |
461 | ||
a83ccdd6 | 462 | int smscore_sendrequest_and_wait(smscore_device_t *coredev, void *buffer, |
82237416 | 463 | size_t size, struct completion *completion) |
2e5c1ec8 MK |
464 | { |
465 | int rc = coredev->sendrequest_handler(coredev->context, buffer, size); | |
82237416 MK |
466 | if (rc < 0) { |
467 | printk(KERN_INFO "%s sendrequest returned error %d\n", | |
468 | __func__, rc); | |
2e5c1ec8 | 469 | return rc; |
f17407a8 | 470 | } |
2e5c1ec8 | 471 | |
82237416 MK |
472 | return wait_for_completion_timeout(completion, |
473 | msecs_to_jiffies(10000)) ? | |
474 | 0 : -ETIME; | |
2e5c1ec8 MK |
475 | } |
476 | ||
82237416 MK |
477 | int smscore_load_firmware_family2(smscore_device_t *coredev, void *buffer, |
478 | size_t size) | |
2e5c1ec8 | 479 | { |
82237416 | 480 | SmsFirmware_ST *firmware = (SmsFirmware_ST *) buffer; |
2e5c1ec8 | 481 | SmsMsgHdr_ST *msg; |
f0333e3d | 482 | u32 mem_address = firmware->StartAddress; |
a83ccdd6 | 483 | u8 *payload = firmware->Payload; |
2e5c1ec8 MK |
484 | int rc = 0; |
485 | ||
82237416 MK |
486 | printk(KERN_INFO "%s loading FW to addr 0x%x size %d\n", |
487 | __func__, mem_address, firmware->Length); | |
488 | if (coredev->preload_handler) { | |
2e5c1ec8 MK |
489 | rc = coredev->preload_handler(coredev->context); |
490 | if (rc < 0) | |
491 | return rc; | |
492 | } | |
493 | ||
82237416 | 494 | /* PAGE_SIZE buffer shall be enough and dma aligned */ |
2e5c1ec8 MK |
495 | msg = (SmsMsgHdr_ST *) kmalloc(PAGE_SIZE, GFP_KERNEL | GFP_DMA); |
496 | if (!msg) | |
497 | return -ENOMEM; | |
498 | ||
82237416 | 499 | if (coredev->mode != DEVICE_MODE_NONE) { |
f17407a8 | 500 | PDEBUG("Sending reload command\n"); |
82237416 MK |
501 | SMS_INIT_MSG(msg, MSG_SW_RELOAD_START_REQ, |
502 | sizeof(SmsMsgHdr_ST)); | |
503 | rc = smscore_sendrequest_and_wait(coredev, msg, | |
504 | msg->msgLength, | |
505 | &coredev->reload_start_done); | |
f0333e3d | 506 | mem_address = *(u32 *) &payload[20]; |
2e5c1ec8 MK |
507 | } |
508 | ||
fa830e8a | 509 | while (size && rc >= 0) { |
2e5c1ec8 MK |
510 | SmsDataDownload_ST *DataMsg = (SmsDataDownload_ST *) msg; |
511 | int payload_size = min((int) size, SMS_MAX_PAYLOAD_SIZE); | |
512 | ||
82237416 | 513 | SMS_INIT_MSG(msg, MSG_SMS_DATA_DOWNLOAD_REQ, |
f0333e3d MK |
514 | (u16)(sizeof(SmsMsgHdr_ST) + |
515 | sizeof(u32) + payload_size)); | |
2e5c1ec8 MK |
516 | |
517 | DataMsg->MemAddr = mem_address; | |
518 | memcpy(DataMsg->Payload, payload, payload_size); | |
519 | ||
82237416 MK |
520 | if ((coredev->device_flags & SMS_ROM_NO_RESPONSE) && |
521 | (coredev->mode == DEVICE_MODE_NONE)) | |
59bf6b8e MK |
522 | rc = coredev->sendrequest_handler( |
523 | coredev->context, DataMsg, | |
524 | DataMsg->xMsgHeader.msgLength); | |
2e5c1ec8 | 525 | else |
59bf6b8e MK |
526 | rc = smscore_sendrequest_and_wait( |
527 | coredev, DataMsg, | |
528 | DataMsg->xMsgHeader.msgLength, | |
529 | &coredev->data_download_done); | |
2e5c1ec8 MK |
530 | |
531 | payload += payload_size; | |
532 | size -= payload_size; | |
533 | mem_address += payload_size; | |
534 | } | |
535 | ||
82237416 MK |
536 | if (rc >= 0) { |
537 | if (coredev->mode == DEVICE_MODE_NONE) { | |
538 | SmsMsgData_ST *TriggerMsg = (SmsMsgData_ST *) msg; | |
2e5c1ec8 | 539 | |
82237416 MK |
540 | SMS_INIT_MSG(msg, MSG_SMS_SWDOWNLOAD_TRIGGER_REQ, |
541 | sizeof(SmsMsgHdr_ST) + | |
f0333e3d | 542 | sizeof(u32) * 5); |
2e5c1ec8 | 543 | |
59bf6b8e MK |
544 | TriggerMsg->msgData[0] = firmware->StartAddress; |
545 | /* Entry point */ | |
fa830e8a MK |
546 | TriggerMsg->msgData[1] = 5; /* Priority */ |
547 | TriggerMsg->msgData[2] = 0x200; /* Stack size */ | |
548 | TriggerMsg->msgData[3] = 0; /* Parameter */ | |
549 | TriggerMsg->msgData[4] = 4; /* Task ID */ | |
2e5c1ec8 | 550 | |
82237416 | 551 | if (coredev->device_flags & SMS_ROM_NO_RESPONSE) { |
59bf6b8e MK |
552 | rc = coredev->sendrequest_handler( |
553 | coredev->context, TriggerMsg, | |
554 | TriggerMsg->xMsgHeader.msgLength); | |
2e5c1ec8 | 555 | msleep(100); |
82237416 | 556 | } else |
59bf6b8e MK |
557 | rc = smscore_sendrequest_and_wait( |
558 | coredev, TriggerMsg, | |
559 | TriggerMsg->xMsgHeader.msgLength, | |
560 | &coredev->trigger_done); | |
82237416 MK |
561 | } else { |
562 | SMS_INIT_MSG(msg, MSG_SW_RELOAD_EXEC_REQ, | |
563 | sizeof(SmsMsgHdr_ST)); | |
2e5c1ec8 | 564 | |
82237416 MK |
565 | rc = coredev->sendrequest_handler(coredev->context, |
566 | msg, msg->msgLength); | |
2e5c1ec8 | 567 | } |
82237416 | 568 | msleep(500); |
2e5c1ec8 MK |
569 | } |
570 | ||
9f211397 | 571 | printk(KERN_DEBUG "%s rc=%d, postload=%p \n", __func__, rc, |
82237416 | 572 | coredev->postload_handler); |
2e5c1ec8 MK |
573 | |
574 | kfree(msg); | |
575 | ||
f17407a8 | 576 | return ((rc >= 0) && coredev->postload_handler) ? |
2e5c1ec8 MK |
577 | coredev->postload_handler(coredev->context) : |
578 | rc; | |
579 | } | |
580 | ||
581 | /** | |
582 | * loads specified firmware into a buffer and calls device loadfirmware_handler | |
583 | * | |
59bf6b8e MK |
584 | * @param coredev pointer to a coredev object returned by |
585 | * smscore_register_device | |
2e5c1ec8 MK |
586 | * @param filename null-terminated string specifies firmware file name |
587 | * @param loadfirmware_handler device handler that loads firmware | |
588 | * | |
589 | * @return 0 on success, <0 on error. | |
590 | */ | |
82237416 MK |
591 | int smscore_load_firmware_from_file(smscore_device_t *coredev, char *filename, |
592 | loadfirmware_t loadfirmware_handler) | |
2e5c1ec8 MK |
593 | { |
594 | int rc = -ENOENT; | |
595 | ||
596 | const struct firmware *fw; | |
a83ccdd6 | 597 | u8 *fw_buffer; |
2e5c1ec8 | 598 | |
82237416 MK |
599 | if (loadfirmware_handler == NULL && !(coredev->device_flags & |
600 | SMS_DEVICE_FAMILY2)) | |
2e5c1ec8 MK |
601 | return -EINVAL; |
602 | ||
603 | rc = request_firmware(&fw, filename, coredev->device); | |
82237416 MK |
604 | if (rc < 0) { |
605 | printk(KERN_INFO "%s failed to open \"%s\"\n", | |
606 | __func__, filename); | |
2e5c1ec8 MK |
607 | return rc; |
608 | } | |
82237416 MK |
609 | printk(KERN_INFO "%s read FW %s, size=%d\"\n", __func__, |
610 | filename, fw->size); | |
611 | fw_buffer = kmalloc(ALIGN(fw->size, SMS_ALLOC_ALIGNMENT), | |
612 | GFP_KERNEL | GFP_DMA); | |
613 | if (fw_buffer) { | |
2e5c1ec8 MK |
614 | memcpy(fw_buffer, fw->data, fw->size); |
615 | ||
616 | rc = (coredev->device_flags & SMS_DEVICE_FAMILY2) ? | |
59bf6b8e MK |
617 | smscore_load_firmware_family2(coredev, |
618 | fw_buffer, | |
619 | fw->size) : | |
620 | loadfirmware_handler(coredev->context, | |
621 | fw_buffer, fw->size); | |
2e5c1ec8 MK |
622 | |
623 | kfree(fw_buffer); | |
82237416 MK |
624 | } else { |
625 | printk(KERN_INFO "%s failed to allocate firmware buffer\n", | |
626 | __func__); | |
2e5c1ec8 MK |
627 | rc = -ENOMEM; |
628 | } | |
629 | ||
630 | release_firmware(fw); | |
631 | ||
632 | return rc; | |
633 | } | |
634 | ||
82237416 MK |
635 | int smscore_load_firmware_from_buffer(smscore_device_t *coredev, u8 *buffer, |
636 | int size, int new_mode) | |
f17407a8 MK |
637 | { |
638 | PERROR("Feature not implemented yet\n"); | |
639 | return -EFAULT; | |
640 | } | |
641 | ||
2e5c1ec8 | 642 | /** |
59bf6b8e MK |
643 | * notifies all clients registered with the device, notifies hotplugs, |
644 | * frees all buffers and coredev object | |
2e5c1ec8 | 645 | * |
59bf6b8e MK |
646 | * @param coredev pointer to a coredev object returned by |
647 | * smscore_register_device | |
2e5c1ec8 MK |
648 | * |
649 | * @return 0 on success, <0 on error. | |
650 | */ | |
651 | void smscore_unregister_device(smscore_device_t *coredev) | |
652 | { | |
653 | smscore_buffer_t *cb; | |
654 | int num_buffers = 0; | |
f17407a8 | 655 | int retry = 0; |
2e5c1ec8 MK |
656 | |
657 | kmutex_lock(&g_smscore_deviceslock); | |
658 | ||
659 | smscore_notify_clients(coredev); | |
660 | smscore_notify_callbacks(coredev, NULL, 0); | |
661 | ||
82237416 MK |
662 | /* at this point all buffers should be back |
663 | * onresponse must no longer be called */ | |
2e5c1ec8 | 664 | |
82237416 MK |
665 | while (1) { |
666 | while ((cb = smscore_getbuffer(coredev))) { | |
2e5c1ec8 | 667 | kfree(cb); |
fa830e8a | 668 | num_buffers++; |
2e5c1ec8 | 669 | } |
2e5c1ec8 MK |
670 | if (num_buffers == coredev->num_buffers) |
671 | break; | |
82237416 MK |
672 | if (++retry > 10) { |
673 | printk(KERN_INFO "%s exiting although " | |
674 | "not all buffers released.\n", __func__); | |
f17407a8 MK |
675 | break; |
676 | } | |
2e5c1ec8 | 677 | |
82237416 MK |
678 | printk(KERN_INFO "%s waiting for %d buffer(s)\n", __func__, |
679 | coredev->num_buffers - num_buffers); | |
2e5c1ec8 MK |
680 | msleep(100); |
681 | } | |
682 | ||
18658117 | 683 | printk(KERN_INFO "%s freed %d buffers\n", __func__, num_buffers); |
2e5c1ec8 MK |
684 | |
685 | if (coredev->common_buffer) | |
82237416 MK |
686 | dma_free_coherent(NULL, coredev->common_buffer_size, |
687 | coredev->common_buffer, | |
688 | coredev->common_buffer_phys); | |
2e5c1ec8 MK |
689 | |
690 | list_del(&coredev->entry); | |
691 | kfree(coredev); | |
692 | ||
693 | kmutex_unlock(&g_smscore_deviceslock); | |
694 | ||
18658117 | 695 | printk(KERN_INFO "%s device %p destroyed\n", __func__, coredev); |
2e5c1ec8 MK |
696 | } |
697 | ||
698 | int smscore_detect_mode(smscore_device_t *coredev) | |
699 | { | |
82237416 MK |
700 | void *buffer = kmalloc(sizeof(SmsMsgHdr_ST) + SMS_DMA_ALIGNMENT, |
701 | GFP_KERNEL | GFP_DMA); | |
2e5c1ec8 MK |
702 | SmsMsgHdr_ST *msg = (SmsMsgHdr_ST *) SMS_ALIGN_ADDRESS(buffer); |
703 | int rc; | |
704 | ||
705 | if (!buffer) | |
706 | return -ENOMEM; | |
707 | ||
708 | SMS_INIT_MSG(msg, MSG_SMS_GET_VERSION_EX_REQ, sizeof(SmsMsgHdr_ST)); | |
709 | ||
82237416 MK |
710 | rc = smscore_sendrequest_and_wait(coredev, msg, msg->msgLength, |
711 | &coredev->version_ex_done); | |
712 | if (rc == -ETIME) { | |
9f211397 MK |
713 | printk(KERN_ERR "%s: MSG_SMS_GET_VERSION_EX_REQ " |
714 | "failed first try\n", __func__); | |
2e5c1ec8 | 715 | |
82237416 MK |
716 | if (wait_for_completion_timeout(&coredev->resume_done, |
717 | msecs_to_jiffies(5000))) { | |
59bf6b8e MK |
718 | rc = smscore_sendrequest_and_wait( |
719 | coredev, msg, msg->msgLength, | |
720 | &coredev->version_ex_done); | |
2e5c1ec8 | 721 | if (rc < 0) |
9f211397 MK |
722 | printk(KERN_ERR "%s: " |
723 | "MSG_SMS_GET_VERSION_EX_REQ failed " | |
59bf6b8e | 724 | "second try, rc %d\n", __func__, rc); |
82237416 | 725 | } else |
2e5c1ec8 MK |
726 | rc = -ETIME; |
727 | } | |
728 | ||
729 | kfree(buffer); | |
730 | ||
731 | return rc; | |
732 | } | |
733 | ||
82237416 | 734 | char *smscore_fw_lkup[][SMS_NUM_OF_DEVICE_TYPES] = { |
f17407a8 | 735 | /*Stellar NOVA A0 Nova B0 VEGA*/ |
82237416 MK |
736 | /*DVBT*/ {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"}, |
737 | /*DVBH*/ {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"}, | |
738 | /*TDMB*/ {"none", "tdmb_nova_12mhz.inp", "none", "none"}, | |
739 | /*DABIP*/ {"none", "none", "none", "none"}, | |
740 | /*BDA*/ {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"}, | |
741 | /*ISDBT*/ {"none", "isdbt_nova_12mhz.inp", "dvb_nova_12mhz.inp", "none"}, | |
742 | /*ISDBTBDA*/{"none", "isdbt_nova_12mhz.inp", "isdbt_nova_12mhz_b0.inp", "none"}, | |
743 | /*CMMB*/ {"none", "none", "none", "cmmb_vega_12mhz.inp"} | |
2e5c1ec8 MK |
744 | }; |
745 | ||
f17407a8 | 746 | |
2e5c1ec8 MK |
747 | /** |
748 | * calls device handler to change mode of operation | |
749 | * NOTE: stellar/usb may disconnect when changing mode | |
750 | * | |
59bf6b8e MK |
751 | * @param coredev pointer to a coredev object returned by |
752 | * smscore_register_device | |
2e5c1ec8 MK |
753 | * @param mode requested mode of operation |
754 | * | |
755 | * @return 0 on success, <0 on error. | |
756 | */ | |
757 | int smscore_set_device_mode(smscore_device_t *coredev, int mode) | |
758 | { | |
759 | void *buffer; | |
760 | int rc = 0; | |
f17407a8 | 761 | sms_device_type_st type; |
2e5c1ec8 | 762 | |
82237416 MK |
763 | PDEBUG("set device mode to %d\n", mode); |
764 | if (coredev->device_flags & SMS_DEVICE_FAMILY2) { | |
765 | if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_RAW_TUNER) { | |
766 | printk(KERN_INFO "%s invalid mode specified %d\n", | |
767 | __func__, mode); | |
2e5c1ec8 MK |
768 | return -EINVAL; |
769 | } | |
770 | ||
f17407a8 MK |
771 | smscore_registry_setmode(coredev->devpath, mode); |
772 | ||
82237416 | 773 | if (!(coredev->device_flags & SMS_DEVICE_NOT_READY)) { |
2e5c1ec8 | 774 | rc = smscore_detect_mode(coredev); |
82237416 MK |
775 | if (rc < 0) { |
776 | printk(KERN_INFO "%s mode detect failed %d\n", | |
777 | __func__, rc); | |
2e5c1ec8 | 778 | return rc; |
82237416 | 779 | } |
f17407a8 | 780 | } |
2e5c1ec8 | 781 | |
82237416 MK |
782 | if (coredev->mode == mode) { |
783 | printk(KERN_INFO "%s device mode %d already set\n", | |
784 | __func__, mode); | |
2e5c1ec8 MK |
785 | return 0; |
786 | } | |
787 | ||
82237416 MK |
788 | if (!(coredev->modes_supported & (1 << mode))) { |
789 | type = smscore_registry_gettype(coredev->devpath); | |
59bf6b8e MK |
790 | rc = smscore_load_firmware_from_file( |
791 | coredev, smscore_fw_lkup[mode][type], NULL); | |
82237416 | 792 | if (rc < 0) { |
59bf6b8e MK |
793 | printk(KERN_INFO "%s load firmware " |
794 | "failed %d\n", __func__, rc); | |
2e5c1ec8 | 795 | return rc; |
82237416 MK |
796 | } |
797 | } else | |
59bf6b8e MK |
798 | printk(KERN_INFO "%s mode %d supported by running " |
799 | "firmware\n", __func__, mode); | |
2e5c1ec8 | 800 | |
82237416 MK |
801 | buffer = kmalloc(sizeof(SmsMsgData_ST) + SMS_DMA_ALIGNMENT, |
802 | GFP_KERNEL | GFP_DMA); | |
803 | if (buffer) { | |
59bf6b8e MK |
804 | SmsMsgData_ST *msg = |
805 | (SmsMsgData_ST *) SMS_ALIGN_ADDRESS(buffer); | |
2e5c1ec8 | 806 | |
59bf6b8e MK |
807 | SMS_INIT_MSG(&msg->xMsgHeader, MSG_SMS_INIT_DEVICE_REQ, |
808 | sizeof(SmsMsgData_ST)); | |
2e5c1ec8 MK |
809 | msg->msgData[0] = mode; |
810 | ||
59bf6b8e MK |
811 | rc = smscore_sendrequest_and_wait( |
812 | coredev, msg, msg->xMsgHeader.msgLength, | |
813 | &coredev->init_device_done); | |
2e5c1ec8 MK |
814 | |
815 | kfree(buffer); | |
82237416 | 816 | } else { |
59bf6b8e MK |
817 | printk(KERN_INFO "%s Could not allocate buffer for " |
818 | "init device message.\n", __func__); | |
2e5c1ec8 | 819 | rc = -ENOMEM; |
82237416 MK |
820 | } |
821 | } else { | |
822 | if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA) { | |
823 | printk(KERN_INFO "%s invalid mode specified %d\n", | |
824 | __func__, mode); | |
f17407a8 MK |
825 | return -EINVAL; |
826 | } | |
827 | ||
828 | smscore_registry_setmode(coredev->devpath, mode); | |
829 | ||
2e5c1ec8 | 830 | if (coredev->detectmode_handler) |
82237416 MK |
831 | coredev->detectmode_handler(coredev->context, |
832 | &coredev->mode); | |
2e5c1ec8 MK |
833 | |
834 | if (coredev->mode != mode && coredev->setmode_handler) | |
835 | rc = coredev->setmode_handler(coredev->context, mode); | |
836 | } | |
837 | ||
82237416 | 838 | if (rc >= 0) { |
2e5c1ec8 MK |
839 | coredev->mode = mode; |
840 | coredev->device_flags &= ~SMS_DEVICE_NOT_READY; | |
841 | } | |
842 | ||
f17407a8 MK |
843 | if (rc != 0) |
844 | printk(KERN_INFO "%s return error code %d.\n", __func__, rc); | |
2e5c1ec8 MK |
845 | return rc; |
846 | } | |
847 | ||
848 | /** | |
849 | * calls device handler to get current mode of operation | |
850 | * | |
59bf6b8e MK |
851 | * @param coredev pointer to a coredev object returned by |
852 | * smscore_register_device | |
2e5c1ec8 MK |
853 | * |
854 | * @return current mode | |
855 | */ | |
856 | int smscore_get_device_mode(smscore_device_t *coredev) | |
857 | { | |
858 | return coredev->mode; | |
859 | } | |
860 | ||
f17407a8 MK |
861 | /** |
862 | * find client by response id & type within the clients list. | |
863 | * return client handle or NULL. | |
864 | * | |
59bf6b8e MK |
865 | * @param coredev pointer to a coredev object returned by |
866 | * smscore_register_device | |
f17407a8 | 867 | * @param data_type client data type (SMS_DONT_CARE for all types) |
82237416 | 868 | * @param id client id (SMS_DONT_CARE for all id) |
f17407a8 MK |
869 | * |
870 | */ | |
59bf6b8e MK |
871 | smscore_client_t *smscore_find_client(smscore_device_t *coredev, |
872 | int data_type, int id) | |
2e5c1ec8 MK |
873 | { |
874 | smscore_client_t *client = NULL; | |
875 | struct list_head *next, *first; | |
876 | unsigned long flags; | |
f17407a8 | 877 | struct list_head *firstid, *nextid; |
2e5c1ec8 | 878 | |
2e5c1ec8 MK |
879 | |
880 | spin_lock_irqsave(&coredev->clientslock, flags); | |
2e5c1ec8 | 881 | first = &coredev->clients; |
82237416 MK |
882 | for (next = first->next; |
883 | (next != first) && !client; | |
884 | next = next->next) { | |
fa830e8a | 885 | firstid = &((smscore_client_t *)next)->idlist; |
82237416 MK |
886 | for (nextid = firstid->next; |
887 | nextid != firstid; | |
888 | nextid = nextid->next) { | |
fa830e8a MK |
889 | if ((((smscore_idlist_t *)nextid)->id == id) && |
890 | (((smscore_idlist_t *)nextid)->data_type == data_type || | |
891 | (((smscore_idlist_t *)nextid)->data_type == 0))) { | |
892 | client = (smscore_client_t *) next; | |
82237416 MK |
893 | break; |
894 | } | |
2e5c1ec8 MK |
895 | } |
896 | } | |
2e5c1ec8 | 897 | spin_unlock_irqrestore(&coredev->clientslock, flags); |
2e5c1ec8 MK |
898 | return client; |
899 | } | |
900 | ||
901 | /** | |
902 | * find client by response id/type, call clients onresponse handler | |
903 | * return buffer to pool on error | |
904 | * | |
59bf6b8e MK |
905 | * @param coredev pointer to a coredev object returned by |
906 | * smscore_register_device | |
2e5c1ec8 MK |
907 | * @param cb pointer to response buffer descriptor |
908 | * | |
909 | */ | |
910 | void smscore_onresponse(smscore_device_t *coredev, smscore_buffer_t *cb) | |
911 | { | |
494d24c5 | 912 | SmsMsgHdr_ST *phdr = (SmsMsgHdr_ST *)((u8 *) cb->p + cb->offset); |
59bf6b8e MK |
913 | smscore_client_t *client = |
914 | smscore_find_client(coredev, phdr->msgType, phdr->msgDstId); | |
2e5c1ec8 MK |
915 | int rc = -EBUSY; |
916 | ||
917 | static unsigned long last_sample_time = 0; | |
918 | static int data_total = 0; | |
919 | unsigned long time_now = jiffies_to_msecs(jiffies); | |
920 | ||
921 | if (!last_sample_time) | |
922 | last_sample_time = time_now; | |
923 | ||
fa830e8a | 924 | if (time_now - last_sample_time > 10000) { |
9f211397 | 925 | printk(KERN_DEBUG "\n%s data rate %d bytes/secs\n", __func__, |
82237416 MK |
926 | (int)((data_total * 1000) / |
927 | (time_now - last_sample_time))); | |
2e5c1ec8 MK |
928 | |
929 | last_sample_time = time_now; | |
930 | data_total = 0; | |
931 | } | |
932 | ||
933 | data_total += cb->size; | |
82237416 MK |
934 | /* If no client registered for type & id, |
935 | * check for control client where type is not registered */ | |
2e5c1ec8 MK |
936 | if (client) |
937 | rc = client->onresponse_handler(client->context, cb); | |
938 | ||
82237416 MK |
939 | if (rc < 0) { |
940 | switch (phdr->msgType) { | |
941 | case MSG_SMS_GET_VERSION_EX_RES: | |
2e5c1ec8 | 942 | { |
82237416 | 943 | SmsVersionRes_ST *ver = (SmsVersionRes_ST *) phdr; |
9f211397 MK |
944 | printk(KERN_DEBUG "%s: MSG_SMS_GET_VERSION_EX_RES " |
945 | "id %d prots 0x%x ver %d.%d\n", __func__, | |
82237416 MK |
946 | ver->FirmwareId, ver->SupportedProtocols, |
947 | ver->RomVersionMajor, ver->RomVersionMinor); | |
2e5c1ec8 | 948 | |
82237416 MK |
949 | coredev->mode = ver->FirmwareId == 255 ? |
950 | DEVICE_MODE_NONE : ver->FirmwareId; | |
951 | coredev->modes_supported = ver->SupportedProtocols; | |
2e5c1ec8 | 952 | |
82237416 MK |
953 | complete(&coredev->version_ex_done); |
954 | break; | |
955 | } | |
956 | case MSG_SMS_INIT_DEVICE_RES: | |
9f211397 MK |
957 | printk(KERN_DEBUG "%s: MSG_SMS_INIT_DEVICE_RES\n", |
958 | __func__); | |
82237416 MK |
959 | complete(&coredev->init_device_done); |
960 | break; | |
961 | case MSG_SW_RELOAD_START_RES: | |
9f211397 MK |
962 | printk(KERN_DEBUG "%s: MSG_SW_RELOAD_START_RES\n", |
963 | __func__); | |
82237416 MK |
964 | complete(&coredev->reload_start_done); |
965 | break; | |
966 | case MSG_SMS_DATA_DOWNLOAD_RES: | |
967 | complete(&coredev->data_download_done); | |
968 | break; | |
969 | case MSG_SW_RELOAD_EXEC_RES: | |
9f211397 MK |
970 | printk(KERN_DEBUG "%s: MSG_SW_RELOAD_EXEC_RES\n", |
971 | __func__); | |
82237416 MK |
972 | break; |
973 | case MSG_SMS_SWDOWNLOAD_TRIGGER_RES: | |
9f211397 | 974 | printk(KERN_DEBUG "%s: MSG_SMS_SWDOWNLOAD_TRIGGER_RES\n", |
82237416 MK |
975 | __func__); |
976 | complete(&coredev->trigger_done); | |
977 | break; | |
978 | case MSG_SMS_SLEEP_RESUME_COMP_IND: | |
979 | complete(&coredev->resume_done); | |
980 | break; | |
981 | default: | |
982 | break; | |
2e5c1ec8 | 983 | } |
2e5c1ec8 MK |
984 | smscore_putbuffer(coredev, cb); |
985 | } | |
986 | } | |
987 | ||
988 | /** | |
989 | * return pointer to next free buffer descriptor from core pool | |
990 | * | |
59bf6b8e MK |
991 | * @param coredev pointer to a coredev object returned by |
992 | * smscore_register_device | |
2e5c1ec8 MK |
993 | * |
994 | * @return pointer to descriptor on success, NULL on error. | |
995 | */ | |
996 | smscore_buffer_t *smscore_getbuffer(smscore_device_t *coredev) | |
997 | { | |
998 | smscore_buffer_t *cb = NULL; | |
999 | unsigned long flags; | |
1000 | ||
1001 | spin_lock_irqsave(&coredev->bufferslock, flags); | |
1002 | ||
82237416 | 1003 | if (!list_empty(&coredev->buffers)) { |
2e5c1ec8 MK |
1004 | cb = (smscore_buffer_t *) coredev->buffers.next; |
1005 | list_del(&cb->entry); | |
1006 | } | |
1007 | ||
1008 | spin_unlock_irqrestore(&coredev->bufferslock, flags); | |
1009 | ||
1010 | return cb; | |
1011 | } | |
1012 | ||
1013 | /** | |
1014 | * return buffer descriptor to a pool | |
1015 | * | |
59bf6b8e MK |
1016 | * @param coredev pointer to a coredev object returned by |
1017 | * smscore_register_device | |
2e5c1ec8 MK |
1018 | * @param cb pointer buffer descriptor |
1019 | * | |
1020 | */ | |
1021 | void smscore_putbuffer(smscore_device_t *coredev, smscore_buffer_t *cb) | |
1022 | { | |
1023 | list_add_locked(&cb->entry, &coredev->buffers, &coredev->bufferslock); | |
1024 | } | |
1025 | ||
82237416 MK |
1026 | int smscore_validate_client(smscore_device_t *coredev, |
1027 | smscore_client_t *client, int data_type, int id) | |
2e5c1ec8 | 1028 | { |
f17407a8 MK |
1029 | smscore_idlist_t *listentry; |
1030 | smscore_client_t *registered_client; | |
2e5c1ec8 | 1031 | |
82237416 | 1032 | if (!client) { |
f17407a8 MK |
1033 | PERROR("bad parameter.\n"); |
1034 | return -EFAULT; | |
1035 | } | |
1036 | registered_client = smscore_find_client(coredev, data_type, id); | |
fa830e8a | 1037 | if (registered_client == client) |
2e5c1ec8 | 1038 | return 0; |
fa830e8a | 1039 | |
82237416 | 1040 | if (registered_client) { |
f17407a8 MK |
1041 | PERROR("The msg ID already registered to another client.\n"); |
1042 | return -EEXIST; | |
1043 | } | |
82237416 MK |
1044 | listentry = kzalloc(sizeof(smscore_idlist_t), GFP_KERNEL); |
1045 | if (!listentry) { | |
f17407a8 | 1046 | PERROR("Can't allocate memory for client id.\n"); |
2e5c1ec8 | 1047 | return -ENOMEM; |
f17407a8 MK |
1048 | } |
1049 | listentry->id = id; | |
1050 | listentry->data_type = data_type; | |
82237416 MK |
1051 | list_add_locked(&listentry->entry, &client->idlist, |
1052 | &coredev->clientslock); | |
2e5c1ec8 MK |
1053 | return 0; |
1054 | } | |
1055 | ||
1056 | /** | |
1057 | * creates smsclient object, check that id is taken by another client | |
1058 | * | |
1059 | * @param coredev pointer to a coredev object from clients hotplug | |
1060 | * @param initial_id all messages with this id would be sent to this client | |
1061 | * @param data_type all messages of this type would be sent to this client | |
1062 | * @param onresponse_handler client handler that is called to process incoming messages | |
1063 | * @param onremove_handler client handler that is called when device is removed | |
1064 | * @param context client-specific context | |
1065 | * @param client pointer to a value that receives created smsclient object | |
1066 | * | |
1067 | * @return 0 on success, <0 on error. | |
1068 | */ | |
59bf6b8e MK |
1069 | int smscore_register_client(smscore_device_t *coredev, |
1070 | smsclient_params_t *params, | |
1071 | smscore_client_t **client) | |
2e5c1ec8 | 1072 | { |
a83ccdd6 | 1073 | smscore_client_t *newclient; |
82237416 MK |
1074 | /* check that no other channel with same parameters exists */ |
1075 | if (smscore_find_client(coredev, params->data_type, | |
1076 | params->initial_id)) { | |
f17407a8 | 1077 | PERROR("Client already exist.\n"); |
2e5c1ec8 | 1078 | return -EEXIST; |
f17407a8 | 1079 | } |
2e5c1ec8 MK |
1080 | |
1081 | newclient = kzalloc(sizeof(smscore_client_t), GFP_KERNEL); | |
82237416 | 1082 | if (!newclient) { |
f17407a8 MK |
1083 | PERROR("Failed to allocate memory for client.\n"); |
1084 | return -ENOMEM; | |
2e5c1ec8 MK |
1085 | } |
1086 | ||
82237416 | 1087 | INIT_LIST_HEAD(&newclient->idlist); |
2e5c1ec8 | 1088 | newclient->coredev = coredev; |
2e5c1ec8 MK |
1089 | newclient->onresponse_handler = params->onresponse_handler; |
1090 | newclient->onremove_handler = params->onremove_handler; | |
1091 | newclient->context = params->context; | |
82237416 MK |
1092 | list_add_locked(&newclient->entry, &coredev->clients, |
1093 | &coredev->clientslock); | |
1094 | smscore_validate_client(coredev, newclient, params->data_type, | |
1095 | params->initial_id); | |
2e5c1ec8 | 1096 | *client = newclient; |
82237416 MK |
1097 | PDEBUG("%p %d %d\n", params->context, params->data_type, |
1098 | params->initial_id); | |
2e5c1ec8 MK |
1099 | |
1100 | return 0; | |
1101 | } | |
1102 | ||
1103 | /** | |
1104 | * frees smsclient object and all subclients associated with it | |
1105 | * | |
59bf6b8e MK |
1106 | * @param client pointer to smsclient object returned by |
1107 | * smscore_register_client | |
2e5c1ec8 MK |
1108 | * |
1109 | */ | |
1110 | void smscore_unregister_client(smscore_client_t *client) | |
1111 | { | |
1112 | smscore_device_t *coredev = client->coredev; | |
2e5c1ec8 MK |
1113 | unsigned long flags; |
1114 | ||
1115 | spin_lock_irqsave(&coredev->clientslock, flags); | |
1116 | ||
2e5c1ec8 | 1117 | |
82237416 MK |
1118 | while (!list_empty(&client->idlist)) { |
1119 | smscore_idlist_t *identry = | |
fa830e8a | 1120 | (smscore_idlist_t *) client->idlist.next; |
82237416 MK |
1121 | list_del(&identry->entry); |
1122 | kfree(identry); | |
2e5c1ec8 MK |
1123 | } |
1124 | ||
f17407a8 | 1125 | printk(KERN_INFO "%s %p\n", __func__, client->context); |
2e5c1ec8 MK |
1126 | |
1127 | list_del(&client->entry); | |
1128 | kfree(client); | |
1129 | ||
1130 | spin_unlock_irqrestore(&coredev->clientslock, flags); | |
1131 | } | |
1132 | ||
1133 | /** | |
1134 | * verifies that source id is not taken by another client, | |
1135 | * calls device handler to send requests to the device | |
1136 | * | |
59bf6b8e MK |
1137 | * @param client pointer to smsclient object returned by |
1138 | * smscore_register_client | |
2e5c1ec8 MK |
1139 | * @param buffer pointer to a request buffer |
1140 | * @param size size (in bytes) of request buffer | |
1141 | * | |
1142 | * @return 0 on success, <0 on error. | |
1143 | */ | |
1144 | int smsclient_sendrequest(smscore_client_t *client, void *buffer, size_t size) | |
1145 | { | |
f17407a8 | 1146 | smscore_device_t *coredev; |
494d24c5 | 1147 | SmsMsgHdr_ST *phdr = (SmsMsgHdr_ST *) buffer; |
f17407a8 MK |
1148 | int rc; |
1149 | ||
82237416 MK |
1150 | if (client == NULL) { |
1151 | printk(KERN_ERR "%s Got NULL client\n", __func__); | |
f17407a8 MK |
1152 | return -EINVAL; |
1153 | } | |
1154 | ||
1155 | coredev = client->coredev; | |
2e5c1ec8 | 1156 | |
82237416 MK |
1157 | /* check that no other channel with same id exists */ |
1158 | if (coredev == NULL) { | |
1159 | printk(KERN_ERR "%s Got NULL coredev\n", __func__); | |
f17407a8 MK |
1160 | return -EINVAL; |
1161 | } | |
1162 | ||
82237416 MK |
1163 | rc = smscore_validate_client(client->coredev, client, 0, |
1164 | phdr->msgSrcId); | |
2e5c1ec8 MK |
1165 | if (rc < 0) |
1166 | return rc; | |
1167 | ||
1168 | return coredev->sendrequest_handler(coredev->context, buffer, size); | |
1169 | } | |
1170 | ||
1171 | /** | |
1172 | * return the size of large (common) buffer | |
1173 | * | |
1174 | * @param coredev pointer to a coredev object from clients hotplug | |
1175 | * | |
1176 | * @return size (in bytes) of the buffer | |
1177 | */ | |
1178 | int smscore_get_common_buffer_size(smscore_device_t *coredev) | |
1179 | { | |
1180 | return coredev->common_buffer_size; | |
1181 | } | |
1182 | ||
1183 | /** | |
1184 | * maps common buffer (if supported by platform) | |
1185 | * | |
1186 | * @param coredev pointer to a coredev object from clients hotplug | |
1187 | * @param vma pointer to vma struct from mmap handler | |
1188 | * | |
1189 | * @return 0 on success, <0 on error. | |
1190 | */ | |
a83ccdd6 MK |
1191 | int smscore_map_common_buffer(smscore_device_t *coredev, |
1192 | struct vm_area_struct *vma) | |
2e5c1ec8 | 1193 | { |
82237416 MK |
1194 | unsigned long end = vma->vm_end, |
1195 | start = vma->vm_start, | |
1196 | size = PAGE_ALIGN(coredev->common_buffer_size); | |
2e5c1ec8 | 1197 | |
82237416 MK |
1198 | if (!(vma->vm_flags & (VM_READ | VM_SHARED)) || |
1199 | (vma->vm_flags & VM_WRITE)) { | |
18658117 | 1200 | printk(KERN_INFO "%s invalid vm flags\n", __func__); |
2e5c1ec8 MK |
1201 | return -EINVAL; |
1202 | } | |
1203 | ||
82237416 MK |
1204 | if ((end - start) != size) { |
1205 | printk(KERN_INFO "%s invalid size %d expected %d\n", | |
1206 | __func__, (int)(end - start), (int) size); | |
2e5c1ec8 MK |
1207 | return -EINVAL; |
1208 | } | |
1209 | ||
82237416 MK |
1210 | if (remap_pfn_range(vma, start, |
1211 | coredev->common_buffer_phys >> PAGE_SHIFT, | |
1212 | size, pgprot_noncached(vma->vm_page_prot))) | |
2e5c1ec8 | 1213 | { |
18658117 | 1214 | printk(KERN_INFO "%s remap_page_range failed\n", __func__); |
2e5c1ec8 MK |
1215 | return -EAGAIN; |
1216 | } | |
1217 | ||
1218 | return 0; | |
1219 | } | |
1220 | ||
1221 | int smscore_module_init(void) | |
1222 | { | |
c6465799 | 1223 | int rc = 0; |
2e5c1ec8 MK |
1224 | |
1225 | INIT_LIST_HEAD(&g_smscore_notifyees); | |
1226 | INIT_LIST_HEAD(&g_smscore_devices); | |
1227 | kmutex_init(&g_smscore_deviceslock); | |
1228 | ||
1229 | INIT_LIST_HEAD(&g_smscore_registry); | |
1230 | kmutex_init(&g_smscore_registrylock); | |
1231 | ||
eae55660 ST |
1232 | /* USB Register */ |
1233 | rc = smsusb_register(); | |
1234 | ||
1235 | /* DVB Register */ | |
1236 | rc = smsdvb_register(); | |
1237 | ||
18658117 | 1238 | printk(KERN_INFO "%s, rc %d\n", __func__, rc); |
2e5c1ec8 MK |
1239 | |
1240 | return rc; | |
1241 | } | |
1242 | ||
1243 | void smscore_module_exit(void) | |
1244 | { | |
eae55660 | 1245 | |
2e5c1ec8 | 1246 | kmutex_lock(&g_smscore_deviceslock); |
82237416 MK |
1247 | while (!list_empty(&g_smscore_notifyees)) { |
1248 | smscore_device_notifyee_t *notifyee = | |
1249 | (smscore_device_notifyee_t *) g_smscore_notifyees.next; | |
2e5c1ec8 MK |
1250 | |
1251 | list_del(¬ifyee->entry); | |
1252 | kfree(notifyee); | |
1253 | } | |
1254 | kmutex_unlock(&g_smscore_deviceslock); | |
1255 | ||
1256 | kmutex_lock(&g_smscore_registrylock); | |
82237416 MK |
1257 | while (!list_empty(&g_smscore_registry)) { |
1258 | smscore_registry_entry_t *entry = | |
1259 | (smscore_registry_entry_t *) g_smscore_registry.next; | |
2e5c1ec8 MK |
1260 | |
1261 | list_del(&entry->entry); | |
1262 | kfree(entry); | |
1263 | } | |
1264 | kmutex_unlock(&g_smscore_registrylock); | |
1265 | ||
eae55660 ST |
1266 | /* DVB UnRegister */ |
1267 | smsdvb_unregister(); | |
1268 | ||
1269 | /* Unregister USB */ | |
1270 | smsusb_unregister(); | |
1271 | ||
18658117 | 1272 | printk(KERN_INFO "%s\n", __func__); |
2e5c1ec8 MK |
1273 | } |
1274 | ||
1275 | module_init(smscore_module_init); | |
1276 | module_exit(smscore_module_exit); | |
1277 | ||
1278 | MODULE_DESCRIPTION("smscore"); | |
82237416 | 1279 | MODULE_AUTHOR("Siano Mobile Silicon,,, (doronc@siano-ms.com)"); |
2e5c1ec8 | 1280 | MODULE_LICENSE("GPL"); |