2 * Siano core API module
4 * This file contains implementation for the interface to sms core component
6 * author: Anatoly Greenblat
8 * Copyright (c), 2005-2008 Siano Mobile Silicon, Inc.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 3 as
12 * published by the Free Software Foundation;
14 * Software distributed under the License is distributed on an "AS IS"
15 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
17 * See the GNU General Public License for more details.
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.
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>
32 #include <linux/firmware.h>
34 #include "smscoreapi.h"
37 module_param_named(debug, sms_debug, int, 0644);
38 MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
40 struct smscore_device_notifyee_t {
41 struct list_head entry;
45 struct smscore_idlist_t {
46 struct list_head entry;
51 struct smscore_client_t {
52 struct list_head entry;
53 struct smscore_device_t *coredev;
55 struct list_head idlist;
56 onresponse_t onresponse_handler;
57 onremove_t onremove_handler;
60 struct smscore_device_t {
61 struct list_head entry;
63 struct list_head clients;
64 struct list_head subclients;
65 spinlock_t clientslock;
67 struct list_head buffers;
68 spinlock_t bufferslock;
72 int common_buffer_size;
73 dma_addr_t common_buffer_phys;
76 struct device *device;
79 unsigned long device_flags;
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;
87 int mode, modes_supported;
89 struct completion version_ex_done, data_download_done, trigger_done;
90 struct completion init_device_done, reload_start_done, resume_done;
95 void smscore_set_board_id(struct smscore_device_t *core, int id)
100 int smscore_get_board_id(struct smscore_device_t *core)
102 return core->board_id;
105 struct smscore_registry_entry_t {
106 struct list_head entry;
109 enum sms_device_type_st type;
112 struct list_head g_smscore_notifyees;
113 struct list_head g_smscore_devices;
114 kmutex_t g_smscore_deviceslock;
116 struct list_head g_smscore_registry;
117 kmutex_t g_smscore_registrylock;
119 static int default_mode = 4;
121 module_param(default_mode, int, 0644);
122 MODULE_PARM_DESC(default_mode, "default firmware id (device mode)");
124 static struct smscore_registry_entry_t *smscore_find_registry(char *devpath)
126 struct smscore_registry_entry_t *entry;
127 struct list_head *next;
129 kmutex_lock(&g_smscore_registrylock);
130 for (next = g_smscore_registry.next;
131 next != &g_smscore_registry;
133 entry = (struct smscore_registry_entry_t *) next;
134 if (!strcmp(entry->devpath, devpath)) {
135 kmutex_unlock(&g_smscore_registrylock);
139 entry = (struct smscore_registry_entry_t *)
140 kmalloc(sizeof(struct smscore_registry_entry_t),
143 entry->mode = default_mode;
144 strcpy(entry->devpath, devpath);
145 list_add(&entry->entry, &g_smscore_registry);
147 sms_err("failed to create smscore_registry.");
148 kmutex_unlock(&g_smscore_registrylock);
152 int smscore_registry_getmode(char *devpath)
154 struct smscore_registry_entry_t *entry;
156 entry = smscore_find_registry(devpath);
160 sms_err("No registry found.");
165 static enum sms_device_type_st smscore_registry_gettype(char *devpath)
167 struct smscore_registry_entry_t *entry;
169 entry = smscore_find_registry(devpath);
173 sms_err("No registry found.");
178 void smscore_registry_setmode(char *devpath, int mode)
180 struct smscore_registry_entry_t *entry;
182 entry = smscore_find_registry(devpath);
186 sms_err("No registry found.");
189 static void smscore_registry_settype(char *devpath,
190 enum sms_device_type_st type)
192 struct smscore_registry_entry_t *entry;
194 entry = smscore_find_registry(devpath);
198 sms_err("No registry found.");
202 static void list_add_locked(struct list_head *new, struct list_head *head,
207 spin_lock_irqsave(lock, flags);
211 spin_unlock_irqrestore(lock, flags);
215 * register a client callback that called when device plugged in/unplugged
216 * NOTE: if devices exist callback is called immediately for each device
218 * @param hotplug callback
220 * @return 0 on success, <0 on error.
222 int smscore_register_hotplug(hotplug_t hotplug)
224 struct smscore_device_notifyee_t *notifyee;
225 struct list_head *next, *first;
228 kmutex_lock(&g_smscore_deviceslock);
230 notifyee = kmalloc(sizeof(struct smscore_device_notifyee_t),
233 /* now notify callback about existing devices */
234 first = &g_smscore_devices;
235 for (next = first->next;
236 next != first && !rc;
238 struct smscore_device_t *coredev =
239 (struct smscore_device_t *) next;
240 rc = hotplug(coredev, coredev->device, 1);
244 notifyee->hotplug = hotplug;
245 list_add(¬ifyee->entry, &g_smscore_notifyees);
251 kmutex_unlock(&g_smscore_deviceslock);
257 * unregister a client callback that called when device plugged in/unplugged
259 * @param hotplug callback
262 void smscore_unregister_hotplug(hotplug_t hotplug)
264 struct list_head *next, *first;
266 kmutex_lock(&g_smscore_deviceslock);
268 first = &g_smscore_notifyees;
270 for (next = first->next; next != first;) {
271 struct smscore_device_notifyee_t *notifyee =
272 (struct smscore_device_notifyee_t *) next;
275 if (notifyee->hotplug == hotplug) {
276 list_del(¬ifyee->entry);
281 kmutex_unlock(&g_smscore_deviceslock);
284 static void smscore_notify_clients(struct smscore_device_t *coredev)
286 struct smscore_client_t *client;
288 /* the client must call smscore_unregister_client from remove handler */
289 while (!list_empty(&coredev->clients)) {
290 client = (struct smscore_client_t *) coredev->clients.next;
291 client->onremove_handler(client->context);
295 static int smscore_notify_callbacks(struct smscore_device_t *coredev,
296 struct device *device, int arrival)
298 struct list_head *next, *first;
301 /* note: must be called under g_deviceslock */
303 first = &g_smscore_notifyees;
305 for (next = first->next; next != first; next = next->next) {
306 rc = ((struct smscore_device_notifyee_t *) next)->
307 hotplug(coredev, device, arrival);
316 smscore_buffer_t *smscore_createbuffer(u8 *buffer, void *common_buffer,
317 dma_addr_t common_buffer_phys)
319 struct smscore_buffer_t *cb =
320 kmalloc(sizeof(struct smscore_buffer_t), GFP_KERNEL);
322 sms_info("kmalloc(...) failed");
327 cb->offset_in_common = buffer - (u8 *) common_buffer;
328 cb->phys = common_buffer_phys + cb->offset_in_common;
334 * creates coredev object for a device, prepares buffers,
335 * creates buffer mappings, notifies registered hotplugs about new device.
337 * @param params device pointer to struct with device specific parameters
339 * @param coredev pointer to a value that receives created coredev object
341 * @return 0 on success, <0 on error.
343 int smscore_register_device(struct smsdevice_params_t *params,
344 struct smscore_device_t **coredev)
346 struct smscore_device_t *dev;
349 dev = kzalloc(sizeof(struct smscore_device_t), GFP_KERNEL);
351 sms_info("kzalloc(...) failed");
355 /* init list entry so it could be safe in smscore_unregister_device */
356 INIT_LIST_HEAD(&dev->entry);
359 INIT_LIST_HEAD(&dev->clients);
360 INIT_LIST_HEAD(&dev->buffers);
363 spin_lock_init(&dev->clientslock);
364 spin_lock_init(&dev->bufferslock);
366 /* init completion events */
367 init_completion(&dev->version_ex_done);
368 init_completion(&dev->data_download_done);
369 init_completion(&dev->trigger_done);
370 init_completion(&dev->init_device_done);
371 init_completion(&dev->reload_start_done);
372 init_completion(&dev->resume_done);
374 /* alloc common buffer */
375 dev->common_buffer_size = params->buffer_size * params->num_buffers;
376 dev->common_buffer = dma_alloc_coherent(NULL, dev->common_buffer_size,
377 &dev->common_buffer_phys,
378 GFP_KERNEL | GFP_DMA);
379 if (!dev->common_buffer) {
380 smscore_unregister_device(dev);
384 /* prepare dma buffers */
385 for (buffer = dev->common_buffer;
386 dev->num_buffers < params->num_buffers;
387 dev->num_buffers++, buffer += params->buffer_size) {
388 struct smscore_buffer_t *cb =
389 smscore_createbuffer(buffer, dev->common_buffer,
390 dev->common_buffer_phys);
392 smscore_unregister_device(dev);
396 smscore_putbuffer(dev, cb);
399 sms_info("allocated %d buffers", dev->num_buffers);
401 dev->mode = DEVICE_MODE_NONE;
402 dev->context = params->context;
403 dev->device = params->device;
404 dev->setmode_handler = params->setmode_handler;
405 dev->detectmode_handler = params->detectmode_handler;
406 dev->sendrequest_handler = params->sendrequest_handler;
407 dev->preload_handler = params->preload_handler;
408 dev->postload_handler = params->postload_handler;
410 dev->device_flags = params->flags;
411 strcpy(dev->devpath, params->devpath);
413 smscore_registry_settype(dev->devpath, params->device_type);
415 /* add device to devices list */
416 kmutex_lock(&g_smscore_deviceslock);
417 list_add(&dev->entry, &g_smscore_devices);
418 kmutex_unlock(&g_smscore_deviceslock);
422 sms_info("device %p created", dev);
428 * sets initial device mode and notifies client hotplugs that device is ready
430 * @param coredev pointer to a coredev object returned by
431 * smscore_register_device
433 * @return 0 on success, <0 on error.
435 int smscore_start_device(struct smscore_device_t *coredev)
437 int rc = smscore_set_device_mode(
438 coredev, smscore_registry_getmode(coredev->devpath));
440 sms_info("set device mode faile , rc %d", rc);
444 kmutex_lock(&g_smscore_deviceslock);
446 rc = smscore_notify_callbacks(coredev, coredev->device, 1);
448 sms_info("device %p started, rc %d", coredev, rc);
450 kmutex_unlock(&g_smscore_deviceslock);
455 static int smscore_sendrequest_and_wait(struct smscore_device_t *coredev,
456 void *buffer, size_t size,
457 struct completion *completion)
459 int rc = coredev->sendrequest_handler(coredev->context, buffer, size);
461 sms_info("sendrequest returned error %d", rc);
465 return wait_for_completion_timeout(completion,
466 msecs_to_jiffies(10000)) ?
470 static int smscore_load_firmware_family2(struct smscore_device_t *coredev,
471 void *buffer, size_t size)
473 struct SmsFirmware_ST *firmware = (struct SmsFirmware_ST *) buffer;
474 struct SmsMsgHdr_ST *msg;
475 u32 mem_address = firmware->StartAddress;
476 u8 *payload = firmware->Payload;
479 sms_info("loading FW to addr 0x%x size %d",
480 mem_address, firmware->Length);
481 if (coredev->preload_handler) {
482 rc = coredev->preload_handler(coredev->context);
487 /* PAGE_SIZE buffer shall be enough and dma aligned */
488 msg = kmalloc(PAGE_SIZE, GFP_KERNEL | GFP_DMA);
492 if (coredev->mode != DEVICE_MODE_NONE) {
493 sms_debug("sending reload command.");
494 SMS_INIT_MSG(msg, MSG_SW_RELOAD_START_REQ,
495 sizeof(struct SmsMsgHdr_ST));
496 rc = smscore_sendrequest_and_wait(coredev, msg,
498 &coredev->reload_start_done);
499 mem_address = *(u32 *) &payload[20];
502 while (size && rc >= 0) {
503 struct SmsDataDownload_ST *DataMsg =
504 (struct SmsDataDownload_ST *) msg;
505 int payload_size = min((int) size, SMS_MAX_PAYLOAD_SIZE);
507 SMS_INIT_MSG(msg, MSG_SMS_DATA_DOWNLOAD_REQ,
508 (u16)(sizeof(struct SmsMsgHdr_ST) +
509 sizeof(u32) + payload_size));
511 DataMsg->MemAddr = mem_address;
512 memcpy(DataMsg->Payload, payload, payload_size);
514 if ((coredev->device_flags & SMS_ROM_NO_RESPONSE) &&
515 (coredev->mode == DEVICE_MODE_NONE))
516 rc = coredev->sendrequest_handler(
517 coredev->context, DataMsg,
518 DataMsg->xMsgHeader.msgLength);
520 rc = smscore_sendrequest_and_wait(
522 DataMsg->xMsgHeader.msgLength,
523 &coredev->data_download_done);
525 payload += payload_size;
526 size -= payload_size;
527 mem_address += payload_size;
531 if (coredev->mode == DEVICE_MODE_NONE) {
532 struct SmsMsgData_ST *TriggerMsg =
533 (struct SmsMsgData_ST *) msg;
535 SMS_INIT_MSG(msg, MSG_SMS_SWDOWNLOAD_TRIGGER_REQ,
536 sizeof(struct SmsMsgHdr_ST) +
539 TriggerMsg->msgData[0] = firmware->StartAddress;
541 TriggerMsg->msgData[1] = 5; /* Priority */
542 TriggerMsg->msgData[2] = 0x200; /* Stack size */
543 TriggerMsg->msgData[3] = 0; /* Parameter */
544 TriggerMsg->msgData[4] = 4; /* Task ID */
546 if (coredev->device_flags & SMS_ROM_NO_RESPONSE) {
547 rc = coredev->sendrequest_handler(
548 coredev->context, TriggerMsg,
549 TriggerMsg->xMsgHeader.msgLength);
552 rc = smscore_sendrequest_and_wait(
554 TriggerMsg->xMsgHeader.msgLength,
555 &coredev->trigger_done);
557 SMS_INIT_MSG(msg, MSG_SW_RELOAD_EXEC_REQ,
558 sizeof(struct SmsMsgHdr_ST));
560 rc = coredev->sendrequest_handler(coredev->context,
561 msg, msg->msgLength);
566 sms_debug("rc=%d, postload=%p ", rc,
567 coredev->postload_handler);
571 return ((rc >= 0) && coredev->postload_handler) ?
572 coredev->postload_handler(coredev->context) :
577 * loads specified firmware into a buffer and calls device loadfirmware_handler
579 * @param coredev pointer to a coredev object returned by
580 * smscore_register_device
581 * @param filename null-terminated string specifies firmware file name
582 * @param loadfirmware_handler device handler that loads firmware
584 * @return 0 on success, <0 on error.
586 static int smscore_load_firmware_from_file(struct smscore_device_t *coredev,
588 loadfirmware_t loadfirmware_handler)
591 const struct firmware *fw;
594 if (loadfirmware_handler == NULL && !(coredev->device_flags &
598 rc = request_firmware(&fw, filename, coredev->device);
600 sms_info("failed to open \"%s\"", filename);
603 sms_info("read FW %s, size=%d\"", filename, fw->size);
604 fw_buffer = kmalloc(ALIGN(fw->size, SMS_ALLOC_ALIGNMENT),
605 GFP_KERNEL | GFP_DMA);
607 memcpy(fw_buffer, fw->data, fw->size);
609 rc = (coredev->device_flags & SMS_DEVICE_FAMILY2) ?
610 smscore_load_firmware_family2(coredev,
613 loadfirmware_handler(coredev->context,
614 fw_buffer, fw->size);
618 sms_info("failed to allocate firmware buffer");
622 release_firmware(fw);
628 * notifies all clients registered with the device, notifies hotplugs,
629 * frees all buffers and coredev object
631 * @param coredev pointer to a coredev object returned by
632 * smscore_register_device
634 * @return 0 on success, <0 on error.
636 void smscore_unregister_device(struct smscore_device_t *coredev)
638 struct smscore_buffer_t *cb;
642 kmutex_lock(&g_smscore_deviceslock);
644 smscore_notify_clients(coredev);
645 smscore_notify_callbacks(coredev, NULL, 0);
647 /* at this point all buffers should be back
648 * onresponse must no longer be called */
651 while ((cb = smscore_getbuffer(coredev))) {
655 if (num_buffers == coredev->num_buffers)
658 sms_info("exiting although "
659 "not all buffers released.");
663 sms_info("waiting for %d buffer(s)",
664 coredev->num_buffers - num_buffers);
668 sms_info("freed %d buffers", num_buffers);
670 if (coredev->common_buffer)
671 dma_free_coherent(NULL, coredev->common_buffer_size,
672 coredev->common_buffer,
673 coredev->common_buffer_phys);
675 list_del(&coredev->entry);
678 kmutex_unlock(&g_smscore_deviceslock);
680 sms_info("device %p destroyed", coredev);
683 static int smscore_detect_mode(struct smscore_device_t *coredev)
685 void *buffer = kmalloc(sizeof(struct SmsMsgHdr_ST) + SMS_DMA_ALIGNMENT,
686 GFP_KERNEL | GFP_DMA);
687 struct SmsMsgHdr_ST *msg =
688 (struct SmsMsgHdr_ST *) SMS_ALIGN_ADDRESS(buffer);
694 SMS_INIT_MSG(msg, MSG_SMS_GET_VERSION_EX_REQ,
695 sizeof(struct SmsMsgHdr_ST));
697 rc = smscore_sendrequest_and_wait(coredev, msg, msg->msgLength,
698 &coredev->version_ex_done);
700 sms_err("MSG_SMS_GET_VERSION_EX_REQ failed first try");
702 if (wait_for_completion_timeout(&coredev->resume_done,
703 msecs_to_jiffies(5000))) {
704 rc = smscore_sendrequest_and_wait(
705 coredev, msg, msg->msgLength,
706 &coredev->version_ex_done);
708 sms_err("MSG_SMS_GET_VERSION_EX_REQ failed "
709 "second try, rc %d", rc);
719 static char *smscore_fw_lkup[][SMS_NUM_OF_DEVICE_TYPES] = {
720 /*Stellar NOVA A0 Nova B0 VEGA*/
722 {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"},
724 {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"},
726 {"none", "tdmb_nova_12mhz.inp", "none", "none"},
728 {"none", "none", "none", "none"},
730 {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"},
732 {"none", "isdbt_nova_12mhz.inp", "dvb_nova_12mhz.inp", "none"},
734 {"none", "isdbt_nova_12mhz.inp", "isdbt_nova_12mhz_b0.inp", "none"},
736 {"none", "none", "none", "cmmb_vega_12mhz.inp"}
741 * calls device handler to change mode of operation
742 * NOTE: stellar/usb may disconnect when changing mode
744 * @param coredev pointer to a coredev object returned by
745 * smscore_register_device
746 * @param mode requested mode of operation
748 * @return 0 on success, <0 on error.
750 int smscore_set_device_mode(struct smscore_device_t *coredev, int mode)
754 enum sms_device_type_st type;
756 sms_debug("set device mode to %d", mode);
757 if (coredev->device_flags & SMS_DEVICE_FAMILY2) {
758 if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_RAW_TUNER) {
759 sms_err("invalid mode specified %d", mode);
763 smscore_registry_setmode(coredev->devpath, mode);
765 if (!(coredev->device_flags & SMS_DEVICE_NOT_READY)) {
766 rc = smscore_detect_mode(coredev);
768 sms_err("mode detect failed %d", rc);
773 if (coredev->mode == mode) {
774 sms_info("device mode %d already set", mode);
778 if (!(coredev->modes_supported & (1 << mode))) {
779 type = smscore_registry_gettype(coredev->devpath);
780 rc = smscore_load_firmware_from_file(
781 coredev, smscore_fw_lkup[mode][type], NULL);
783 sms_err("load firmware failed %d", rc);
787 sms_info("mode %d supported by running "
790 buffer = kmalloc(sizeof(struct SmsMsgData_ST) +
791 SMS_DMA_ALIGNMENT, GFP_KERNEL | GFP_DMA);
793 struct SmsMsgData_ST *msg =
794 (struct SmsMsgData_ST *)
795 SMS_ALIGN_ADDRESS(buffer);
797 SMS_INIT_MSG(&msg->xMsgHeader, MSG_SMS_INIT_DEVICE_REQ,
798 sizeof(struct SmsMsgData_ST));
799 msg->msgData[0] = mode;
801 rc = smscore_sendrequest_and_wait(
802 coredev, msg, msg->xMsgHeader.msgLength,
803 &coredev->init_device_done);
807 sms_err("Could not allocate buffer for "
808 "init device message.");
812 if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA) {
813 sms_err("invalid mode specified %d", mode);
817 smscore_registry_setmode(coredev->devpath, mode);
819 if (coredev->detectmode_handler)
820 coredev->detectmode_handler(coredev->context,
823 if (coredev->mode != mode && coredev->setmode_handler)
824 rc = coredev->setmode_handler(coredev->context, mode);
828 coredev->mode = mode;
829 coredev->device_flags &= ~SMS_DEVICE_NOT_READY;
833 sms_err("return error code %d.", rc);
838 * calls device handler to get current mode of operation
840 * @param coredev pointer to a coredev object returned by
841 * smscore_register_device
843 * @return current mode
845 int smscore_get_device_mode(struct smscore_device_t *coredev)
847 return coredev->mode;
851 * find client by response id & type within the clients list.
852 * return client handle or NULL.
854 * @param coredev pointer to a coredev object returned by
855 * smscore_register_device
856 * @param data_type client data type (SMS_DONT_CARE for all types)
857 * @param id client id (SMS_DONT_CARE for all id)
861 smscore_client_t *smscore_find_client(struct smscore_device_t *coredev,
862 int data_type, int id)
864 struct smscore_client_t *client = NULL;
865 struct list_head *next, *first;
867 struct list_head *firstid, *nextid;
870 spin_lock_irqsave(&coredev->clientslock, flags);
871 first = &coredev->clients;
872 for (next = first->next;
873 (next != first) && !client;
875 firstid = &((struct smscore_client_t *)next)->idlist;
876 for (nextid = firstid->next;
878 nextid = nextid->next) {
879 if ((((struct smscore_idlist_t *)nextid)->id == id) &&
880 (((struct smscore_idlist_t *)nextid)->data_type == data_type ||
881 (((struct smscore_idlist_t *)nextid)->data_type == 0))) {
882 client = (struct smscore_client_t *) next;
887 spin_unlock_irqrestore(&coredev->clientslock, flags);
892 * find client by response id/type, call clients onresponse handler
893 * return buffer to pool on error
895 * @param coredev pointer to a coredev object returned by
896 * smscore_register_device
897 * @param cb pointer to response buffer descriptor
900 void smscore_onresponse(struct smscore_device_t *coredev,
901 struct smscore_buffer_t *cb)
903 struct SmsMsgHdr_ST *phdr =
904 (struct SmsMsgHdr_ST *)((u8 *) cb->p + cb->offset);
905 struct smscore_client_t *client =
906 smscore_find_client(coredev, phdr->msgType, phdr->msgDstId);
909 static unsigned long last_sample_time; /* = 0; */
910 static int data_total; /* = 0; */
911 unsigned long time_now = jiffies_to_msecs(jiffies);
913 if (!last_sample_time)
914 last_sample_time = time_now;
916 if (time_now - last_sample_time > 10000) {
917 sms_debug("\ndata rate %d bytes/secs",
918 (int)((data_total * 1000) /
919 (time_now - last_sample_time)));
921 last_sample_time = time_now;
925 data_total += cb->size;
926 /* If no client registered for type & id,
927 * check for control client where type is not registered */
929 rc = client->onresponse_handler(client->context, cb);
932 switch (phdr->msgType) {
933 case MSG_SMS_GET_VERSION_EX_RES:
935 struct SmsVersionRes_ST *ver =
936 (struct SmsVersionRes_ST *) phdr;
937 sms_debug("MSG_SMS_GET_VERSION_EX_RES "
938 "id %d prots 0x%x ver %d.%d",
939 ver->FirmwareId, ver->SupportedProtocols,
940 ver->RomVersionMajor, ver->RomVersionMinor);
942 coredev->mode = ver->FirmwareId == 255 ?
943 DEVICE_MODE_NONE : ver->FirmwareId;
944 coredev->modes_supported = ver->SupportedProtocols;
946 complete(&coredev->version_ex_done);
949 case MSG_SMS_INIT_DEVICE_RES:
950 sms_debug("MSG_SMS_INIT_DEVICE_RES");
951 complete(&coredev->init_device_done);
953 case MSG_SW_RELOAD_START_RES:
954 sms_debug("MSG_SW_RELOAD_START_RES");
955 complete(&coredev->reload_start_done);
957 case MSG_SMS_DATA_DOWNLOAD_RES:
958 complete(&coredev->data_download_done);
960 case MSG_SW_RELOAD_EXEC_RES:
961 sms_debug("MSG_SW_RELOAD_EXEC_RES");
963 case MSG_SMS_SWDOWNLOAD_TRIGGER_RES:
964 sms_debug("MSG_SMS_SWDOWNLOAD_TRIGGER_RES");
965 complete(&coredev->trigger_done);
967 case MSG_SMS_SLEEP_RESUME_COMP_IND:
968 complete(&coredev->resume_done);
973 smscore_putbuffer(coredev, cb);
978 * return pointer to next free buffer descriptor from core pool
980 * @param coredev pointer to a coredev object returned by
981 * smscore_register_device
983 * @return pointer to descriptor on success, NULL on error.
985 struct smscore_buffer_t *smscore_getbuffer(struct smscore_device_t *coredev)
987 struct smscore_buffer_t *cb = NULL;
990 spin_lock_irqsave(&coredev->bufferslock, flags);
992 if (!list_empty(&coredev->buffers)) {
993 cb = (struct smscore_buffer_t *) coredev->buffers.next;
994 list_del(&cb->entry);
997 spin_unlock_irqrestore(&coredev->bufferslock, flags);
1003 * return buffer descriptor to a pool
1005 * @param coredev pointer to a coredev object returned by
1006 * smscore_register_device
1007 * @param cb pointer buffer descriptor
1010 void smscore_putbuffer(struct smscore_device_t *coredev,
1011 struct smscore_buffer_t *cb)
1013 list_add_locked(&cb->entry, &coredev->buffers, &coredev->bufferslock);
1016 static int smscore_validate_client(struct smscore_device_t *coredev,
1017 struct smscore_client_t *client,
1018 int data_type, int id)
1020 struct smscore_idlist_t *listentry;
1021 struct smscore_client_t *registered_client;
1024 sms_err("bad parameter.");
1027 registered_client = smscore_find_client(coredev, data_type, id);
1028 if (registered_client == client)
1031 if (registered_client) {
1032 sms_err("The msg ID already registered to another client.");
1035 listentry = kzalloc(sizeof(struct smscore_idlist_t), GFP_KERNEL);
1037 sms_err("Can't allocate memory for client id.");
1041 listentry->data_type = data_type;
1042 list_add_locked(&listentry->entry, &client->idlist,
1043 &coredev->clientslock);
1048 * creates smsclient object, check that id is taken by another client
1050 * @param coredev pointer to a coredev object from clients hotplug
1051 * @param initial_id all messages with this id would be sent to this client
1052 * @param data_type all messages of this type would be sent to this client
1053 * @param onresponse_handler client handler that is called to
1054 * process incoming messages
1055 * @param onremove_handler client handler that is called when device is removed
1056 * @param context client-specific context
1057 * @param client pointer to a value that receives created smsclient object
1059 * @return 0 on success, <0 on error.
1061 int smscore_register_client(struct smscore_device_t *coredev,
1062 struct smsclient_params_t *params,
1063 struct smscore_client_t **client)
1065 struct smscore_client_t *newclient;
1066 /* check that no other channel with same parameters exists */
1067 if (smscore_find_client(coredev, params->data_type,
1068 params->initial_id)) {
1069 sms_err("Client already exist.");
1073 newclient = kzalloc(sizeof(struct smscore_client_t), GFP_KERNEL);
1075 sms_err("Failed to allocate memory for client.");
1079 INIT_LIST_HEAD(&newclient->idlist);
1080 newclient->coredev = coredev;
1081 newclient->onresponse_handler = params->onresponse_handler;
1082 newclient->onremove_handler = params->onremove_handler;
1083 newclient->context = params->context;
1084 list_add_locked(&newclient->entry, &coredev->clients,
1085 &coredev->clientslock);
1086 smscore_validate_client(coredev, newclient, params->data_type,
1087 params->initial_id);
1088 *client = newclient;
1089 sms_debug("%p %d %d", params->context, params->data_type,
1090 params->initial_id);
1096 * frees smsclient object and all subclients associated with it
1098 * @param client pointer to smsclient object returned by
1099 * smscore_register_client
1102 void smscore_unregister_client(struct smscore_client_t *client)
1104 struct smscore_device_t *coredev = client->coredev;
1105 unsigned long flags;
1107 spin_lock_irqsave(&coredev->clientslock, flags);
1110 while (!list_empty(&client->idlist)) {
1111 struct smscore_idlist_t *identry =
1112 (struct smscore_idlist_t *) client->idlist.next;
1113 list_del(&identry->entry);
1117 sms_info("%p", client->context);
1119 list_del(&client->entry);
1122 spin_unlock_irqrestore(&coredev->clientslock, flags);
1126 * verifies that source id is not taken by another client,
1127 * calls device handler to send requests to the device
1129 * @param client pointer to smsclient object returned by
1130 * smscore_register_client
1131 * @param buffer pointer to a request buffer
1132 * @param size size (in bytes) of request buffer
1134 * @return 0 on success, <0 on error.
1136 int smsclient_sendrequest(struct smscore_client_t *client,
1137 void *buffer, size_t size)
1139 struct smscore_device_t *coredev;
1140 struct SmsMsgHdr_ST *phdr = (struct SmsMsgHdr_ST *) buffer;
1143 if (client == NULL) {
1144 sms_err("Got NULL client");
1148 coredev = client->coredev;
1150 /* check that no other channel with same id exists */
1151 if (coredev == NULL) {
1152 sms_err("Got NULL coredev");
1156 rc = smscore_validate_client(client->coredev, client, 0,
1161 return coredev->sendrequest_handler(coredev->context, buffer, size);
1165 int smscore_module_init(void)
1169 INIT_LIST_HEAD(&g_smscore_notifyees);
1170 INIT_LIST_HEAD(&g_smscore_devices);
1171 kmutex_init(&g_smscore_deviceslock);
1173 INIT_LIST_HEAD(&g_smscore_registry);
1174 kmutex_init(&g_smscore_registrylock);
1177 rc = smsusb_register();
1180 rc = smsdvb_register();
1182 sms_debug("rc %d", rc);
1187 void smscore_module_exit(void)
1190 kmutex_lock(&g_smscore_deviceslock);
1191 while (!list_empty(&g_smscore_notifyees)) {
1192 struct smscore_device_notifyee_t *notifyee =
1193 (struct smscore_device_notifyee_t *)
1194 g_smscore_notifyees.next;
1196 list_del(¬ifyee->entry);
1199 kmutex_unlock(&g_smscore_deviceslock);
1201 kmutex_lock(&g_smscore_registrylock);
1202 while (!list_empty(&g_smscore_registry)) {
1203 struct smscore_registry_entry_t *entry =
1204 (struct smscore_registry_entry_t *)
1205 g_smscore_registry.next;
1207 list_del(&entry->entry);
1210 kmutex_unlock(&g_smscore_registrylock);
1212 /* DVB UnRegister */
1213 smsdvb_unregister();
1215 /* Unregister USB */
1216 smsusb_unregister();
1221 module_init(smscore_module_init);
1222 module_exit(smscore_module_exit);
1224 MODULE_DESCRIPTION("smscore");
1225 MODULE_AUTHOR("Siano Mobile Silicon,,, (doronc@siano-ms.com)");
1226 MODULE_LICENSE("GPL");