Steven Toth | 8d4f9d0 | 2008-05-22 18:05:26 -0300 | [diff] [blame] | 1 | /* |
Michael Krufky | 8544706 | 2008-05-22 18:29:20 -0300 | [diff] [blame] | 2 | * Siano core API module |
Steven Toth | 8d4f9d0 | 2008-05-22 18:05:26 -0300 | [diff] [blame] | 3 | * |
Michael Krufky | 8544706 | 2008-05-22 18:29:20 -0300 | [diff] [blame] | 4 | * This file contains implementation for the interface to sms core component |
| 5 | * |
| 6 | * author: Anatoly Greenblat |
| 7 | * |
| 8 | * Copyright (c), 2005-2008 Siano Mobile Silicon, Inc. |
Steven Toth | 8d4f9d0 | 2008-05-22 18:05:26 -0300 | [diff] [blame] | 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
Michael Krufky | 8544706 | 2008-05-22 18:29:20 -0300 | [diff] [blame] | 11 | * it under the terms of the GNU General Public License version 3 as |
| 12 | * published by the Free Software Foundation; |
Steven Toth | 8d4f9d0 | 2008-05-22 18:05:26 -0300 | [diff] [blame] | 13 | * |
Michael Krufky | 8544706 | 2008-05-22 18:29:20 -0300 | [diff] [blame] | 14 | * Software distributed under the License is distributed on an "AS IS" |
| 15 | * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. |
Steven Toth | 8d4f9d0 | 2008-05-22 18:05:26 -0300 | [diff] [blame] | 16 | * |
Michael Krufky | 8544706 | 2008-05-22 18:29:20 -0300 | [diff] [blame] | 17 | * See the GNU General Public License for more details. |
Steven Toth | 8d4f9d0 | 2008-05-22 18:05:26 -0300 | [diff] [blame] | 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 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 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 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 32 | #include <linux/firmware.h> |
| 33 | |
| 34 | #include "smscoreapi.h" |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 35 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 36 | #define PERROR(fmt, args...) printk( KERN_ERR "smscore error: line %d- %s(): " fmt,__LINE__, __func__, ## args) |
| 37 | |
| 38 | #ifdef SMSCORE_DEBUG |
| 39 | |
| 40 | #undef PWARNING |
| 41 | # define PWARNING(fmt, args...) printk( KERN_INFO "smscore warning: line %d- %s(): " fmt,__LINE__, __func__, ## args) |
| 42 | #undef PDEBUG /* undef it, just in case */ |
| 43 | # define PDEBUG(fmt, args...) printk( KERN_INFO "smscore - %s(): " fmt, __func__, ## args) |
| 44 | |
| 45 | #else /*SMSCORE_DEBUG*/ |
| 46 | |
| 47 | #define PDEBUG(fmt, args...) |
| 48 | #define PWARNING(fmt, args...) |
| 49 | |
| 50 | #endif |
| 51 | |
| 52 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 53 | typedef struct _smscore_device_notifyee |
| 54 | { |
| 55 | struct list_head entry; |
| 56 | hotplug_t hotplug; |
| 57 | } smscore_device_notifyee_t; |
| 58 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 59 | typedef struct _smscore_subclient |
| 60 | { |
| 61 | struct list_head entry; |
| 62 | int id; |
| 63 | int data_type; |
| 64 | } smscore_idlist_t; |
| 65 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 66 | typedef struct _smscore_client |
| 67 | { |
| 68 | struct list_head entry; |
| 69 | smscore_device_t *coredev; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 70 | void *context; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 71 | struct list_head idlist; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 72 | onresponse_t onresponse_handler; |
| 73 | onremove_t onremove_handler; |
| 74 | } *psmscore_client_t; |
| 75 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 76 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 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; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 117 | sms_device_type_st type; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 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; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 128 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 129 | module_param(default_mode, int, 0644); |
| 130 | MODULE_PARM_DESC(default_mode, "default firmware id (device mode)"); |
| 131 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 132 | static smscore_registry_entry_t *smscore_find_registry ( char *devpath ) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 133 | { |
| 134 | smscore_registry_entry_t *entry; |
| 135 | struct list_head *next; |
| 136 | |
| 137 | kmutex_lock(&g_smscore_registrylock); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 138 | for (next = g_smscore_registry.next; next != &g_smscore_registry; next = next->next) |
| 139 | { |
| 140 | entry = (smscore_registry_entry_t *) next; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 141 | if (!strcmp(entry->devpath, devpath)) |
| 142 | { |
| 143 | kmutex_unlock(&g_smscore_registrylock); |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 144 | return entry; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 145 | } |
| 146 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 147 | entry = (smscore_registry_entry_t *) kmalloc(sizeof(smscore_registry_entry_t), GFP_KERNEL); |
| 148 | if (entry) |
| 149 | { |
| 150 | entry->mode = default_mode; |
| 151 | strcpy(entry->devpath, devpath); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 152 | list_add(&entry->entry, &g_smscore_registry); |
| 153 | } |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 154 | else |
| 155 | printk ( KERN_ERR "%s failed to create smscore_registry.\n", __func__ ); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 156 | kmutex_unlock(&g_smscore_registrylock); |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 157 | return entry; |
| 158 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 159 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 160 | int smscore_registry_getmode ( char *devpath ) |
| 161 | { |
| 162 | smscore_registry_entry_t *entry; |
| 163 | |
| 164 | entry = smscore_find_registry ( devpath ); |
| 165 | if ( entry ) |
| 166 | { |
| 167 | return entry->mode; |
| 168 | } |
| 169 | else |
| 170 | { |
| 171 | printk ( KERN_ERR "%s No registry found.\n", __func__ ); |
| 172 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 173 | return default_mode; |
| 174 | } |
| 175 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 176 | sms_device_type_st smscore_registry_gettype ( char *devpath ) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 177 | { |
| 178 | smscore_registry_entry_t *entry; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 179 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 180 | entry = smscore_find_registry ( devpath ); |
| 181 | if ( entry ) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 182 | { |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 183 | return entry->type; |
| 184 | } |
| 185 | else |
| 186 | { |
| 187 | printk ( KERN_ERR "%s No registry found.\n", __func__ ); |
| 188 | } |
| 189 | return -1; |
| 190 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 191 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 192 | void smscore_registry_setmode ( char *devpath, int mode ) |
| 193 | { |
| 194 | smscore_registry_entry_t *entry; |
| 195 | |
| 196 | entry = smscore_find_registry ( devpath ); |
| 197 | if ( entry ) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 198 | { |
| 199 | entry->mode = mode; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 200 | } |
| 201 | else |
| 202 | { |
| 203 | printk ( KERN_ERR "%s No registry found.\n", __func__ ); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 204 | } |
| 205 | } |
| 206 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 207 | void smscore_registry_settype ( char *devpath, sms_device_type_st type ) |
| 208 | { |
| 209 | smscore_registry_entry_t *entry; |
| 210 | |
| 211 | entry = smscore_find_registry ( devpath ); |
| 212 | if ( entry ) |
| 213 | { |
| 214 | entry->type = type; |
| 215 | } |
| 216 | else |
| 217 | { |
| 218 | printk ( KERN_ERR "%s No registry found.\n", __func__ ); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 219 | } |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 220 | } |
| 221 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 222 | |
| 223 | |
Michael Krufky | a83ccdd | 2008-05-06 03:11:51 -0300 | [diff] [blame] | 224 | void list_add_locked(struct list_head *new, struct list_head *head, |
| 225 | spinlock_t *lock) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 226 | { |
| 227 | unsigned long flags; |
| 228 | |
| 229 | spin_lock_irqsave(lock, flags); |
| 230 | |
| 231 | list_add(new, head); |
| 232 | |
| 233 | spin_unlock_irqrestore(lock, flags); |
| 234 | } |
| 235 | |
| 236 | /** |
| 237 | * register a client callback that called when device plugged in/unplugged |
| 238 | * NOTE: if devices exist callback is called immediately for each device |
| 239 | * |
| 240 | * @param hotplug callback |
| 241 | * |
| 242 | * @return 0 on success, <0 on error. |
| 243 | */ |
| 244 | int smscore_register_hotplug(hotplug_t hotplug) |
| 245 | { |
| 246 | smscore_device_notifyee_t *notifyee; |
| 247 | struct list_head *next, *first; |
| 248 | int rc = 0; |
| 249 | |
| 250 | kmutex_lock(&g_smscore_deviceslock); |
| 251 | |
| 252 | notifyee = kmalloc(sizeof(smscore_device_notifyee_t), GFP_KERNEL); |
| 253 | if (notifyee) |
| 254 | { |
| 255 | // now notify callback about existing devices |
| 256 | first = &g_smscore_devices; |
| 257 | for (next = first->next; next != first && !rc; next = next->next) |
| 258 | { |
| 259 | smscore_device_t *coredev = (smscore_device_t *) next; |
| 260 | rc = hotplug(coredev, coredev->device, 1); |
| 261 | } |
| 262 | |
| 263 | if (rc >= 0) |
| 264 | { |
| 265 | notifyee->hotplug = hotplug; |
| 266 | list_add(¬ifyee->entry, &g_smscore_notifyees); |
| 267 | } |
| 268 | else |
| 269 | kfree(notifyee); |
| 270 | } |
| 271 | else |
| 272 | rc = -ENOMEM; |
| 273 | |
| 274 | kmutex_unlock(&g_smscore_deviceslock); |
| 275 | |
| 276 | return rc; |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * unregister a client callback that called when device plugged in/unplugged |
| 281 | * |
| 282 | * @param hotplug callback |
| 283 | * |
| 284 | */ |
| 285 | void smscore_unregister_hotplug(hotplug_t hotplug) |
| 286 | { |
| 287 | struct list_head *next, *first; |
| 288 | |
| 289 | kmutex_lock(&g_smscore_deviceslock); |
| 290 | |
| 291 | first = &g_smscore_notifyees; |
| 292 | |
| 293 | for (next = first->next; next != first;) |
| 294 | { |
| 295 | smscore_device_notifyee_t *notifyee = (smscore_device_notifyee_t *) next; |
| 296 | next = next->next; |
| 297 | |
| 298 | if (notifyee->hotplug == hotplug) |
| 299 | { |
| 300 | list_del(¬ifyee->entry); |
| 301 | kfree(notifyee); |
| 302 | } |
| 303 | } |
| 304 | |
| 305 | kmutex_unlock(&g_smscore_deviceslock); |
| 306 | } |
| 307 | |
| 308 | void smscore_notify_clients(smscore_device_t *coredev) |
| 309 | { |
Michael Krufky | a83ccdd | 2008-05-06 03:11:51 -0300 | [diff] [blame] | 310 | smscore_client_t *client; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 311 | |
| 312 | // the client must call smscore_unregister_client from remove handler |
| 313 | while (!list_empty(&coredev->clients)) |
| 314 | { |
| 315 | client = (smscore_client_t *) coredev->clients.next; |
| 316 | client->onremove_handler(client->context); |
| 317 | } |
| 318 | } |
| 319 | |
| 320 | int smscore_notify_callbacks(smscore_device_t *coredev, struct device *device, int arrival) |
| 321 | { |
| 322 | struct list_head *next, *first; |
| 323 | int rc = 0; |
| 324 | |
| 325 | // note: must be called under g_deviceslock |
| 326 | |
| 327 | first = &g_smscore_notifyees; |
| 328 | |
| 329 | for (next = first->next; next != first; next = next->next) |
| 330 | { |
| 331 | rc = ((smscore_device_notifyee_t *) next)->hotplug(coredev, device, arrival); |
| 332 | if (rc < 0) |
| 333 | break; |
| 334 | } |
| 335 | |
| 336 | return rc; |
| 337 | } |
| 338 | |
Michael Krufky | a83ccdd | 2008-05-06 03:11:51 -0300 | [diff] [blame] | 339 | smscore_buffer_t *smscore_createbuffer(u8 *buffer, void *common_buffer, |
| 340 | dma_addr_t common_buffer_phys) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 341 | { |
| 342 | smscore_buffer_t *cb = kmalloc(sizeof(smscore_buffer_t), GFP_KERNEL); |
| 343 | if (!cb) |
| 344 | { |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 345 | printk(KERN_INFO "%s kmalloc(...) failed\n", __func__); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 346 | return NULL; |
| 347 | } |
| 348 | |
| 349 | cb->p = buffer; |
Michael Krufky | 494d24c | 2008-06-14 07:40:41 -0300 | [diff] [blame^] | 350 | cb->offset_in_common = buffer - (u8 *) common_buffer; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 351 | cb->phys = common_buffer_phys + cb->offset_in_common; |
| 352 | |
| 353 | return cb; |
| 354 | } |
| 355 | |
| 356 | /** |
| 357 | * creates coredev object for a device, prepares buffers, creates buffer mappings, notifies |
| 358 | * registered hotplugs about new device. |
| 359 | * |
| 360 | * @param params device pointer to struct with device specific parameters and handlers |
| 361 | * @param coredev pointer to a value that receives created coredev object |
| 362 | * |
| 363 | * @return 0 on success, <0 on error. |
| 364 | */ |
| 365 | int smscore_register_device(smsdevice_params_t *params, smscore_device_t **coredev) |
| 366 | { |
Michael Krufky | a83ccdd | 2008-05-06 03:11:51 -0300 | [diff] [blame] | 367 | smscore_device_t *dev; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 368 | u8 *buffer; |
| 369 | |
| 370 | dev = kzalloc(sizeof(smscore_device_t), GFP_KERNEL); |
| 371 | if (!dev) |
| 372 | { |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 373 | printk(KERN_INFO "%s kzalloc(...) failed\n", __func__); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 374 | return -ENOMEM; |
| 375 | } |
| 376 | |
| 377 | // init list entry so it could be safe in smscore_unregister_device |
| 378 | INIT_LIST_HEAD(&dev->entry); |
| 379 | |
| 380 | // init queues |
| 381 | INIT_LIST_HEAD(&dev->clients); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 382 | INIT_LIST_HEAD(&dev->buffers); |
| 383 | |
| 384 | // init locks |
| 385 | spin_lock_init(&dev->clientslock); |
| 386 | spin_lock_init(&dev->bufferslock); |
| 387 | |
| 388 | // init completion events |
| 389 | init_completion(&dev->version_ex_done); |
| 390 | init_completion(&dev->data_download_done); |
| 391 | init_completion(&dev->trigger_done); |
| 392 | init_completion(&dev->init_device_done); |
| 393 | init_completion(&dev->reload_start_done); |
| 394 | init_completion(&dev->resume_done); |
| 395 | |
| 396 | // alloc common buffer |
| 397 | dev->common_buffer_size = params->buffer_size * params->num_buffers; |
| 398 | dev->common_buffer = dma_alloc_coherent(NULL, dev->common_buffer_size, &dev->common_buffer_phys, GFP_KERNEL | GFP_DMA); |
| 399 | if (!dev->common_buffer) |
| 400 | { |
| 401 | smscore_unregister_device(dev); |
| 402 | return -ENOMEM; |
| 403 | } |
| 404 | |
| 405 | // prepare dma buffers |
| 406 | for (buffer = dev->common_buffer; dev->num_buffers < params->num_buffers; dev->num_buffers ++, buffer += params->buffer_size) |
| 407 | { |
| 408 | smscore_buffer_t *cb = smscore_createbuffer(buffer, dev->common_buffer, dev->common_buffer_phys); |
| 409 | if (!cb) |
| 410 | { |
| 411 | smscore_unregister_device(dev); |
| 412 | return -ENOMEM; |
| 413 | } |
| 414 | |
| 415 | smscore_putbuffer(dev, cb); |
| 416 | } |
| 417 | |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 418 | printk(KERN_INFO "%s allocated %d buffers\n", __func__, dev->num_buffers); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 419 | |
| 420 | dev->mode = DEVICE_MODE_NONE; |
| 421 | dev->context = params->context; |
| 422 | dev->device = params->device; |
| 423 | dev->setmode_handler = params->setmode_handler; |
| 424 | dev->detectmode_handler = params->detectmode_handler; |
| 425 | dev->sendrequest_handler = params->sendrequest_handler; |
| 426 | dev->preload_handler = params->preload_handler; |
| 427 | dev->postload_handler = params->postload_handler; |
| 428 | |
| 429 | dev->device_flags = params->flags; |
| 430 | strcpy(dev->devpath, params->devpath); |
| 431 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 432 | smscore_registry_settype ( dev->devpath, params->device_type ); |
| 433 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 434 | // add device to devices list |
| 435 | kmutex_lock(&g_smscore_deviceslock); |
| 436 | list_add(&dev->entry, &g_smscore_devices); |
| 437 | kmutex_unlock(&g_smscore_deviceslock); |
| 438 | |
| 439 | *coredev = dev; |
| 440 | |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 441 | printk(KERN_INFO "%s device %p created\n", __func__, dev); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 442 | |
| 443 | return 0; |
| 444 | } |
| 445 | |
| 446 | /** |
| 447 | * sets initial device mode and notifies client hotplugs that device is ready |
| 448 | * |
| 449 | * @param coredev pointer to a coredev object returned by smscore_register_device |
| 450 | * |
| 451 | * @return 0 on success, <0 on error. |
| 452 | */ |
| 453 | int smscore_start_device(smscore_device_t *coredev) |
| 454 | { |
| 455 | int rc = smscore_set_device_mode(coredev, smscore_registry_getmode(coredev->devpath)); |
| 456 | if (rc < 0) |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 457 | { |
| 458 | printk ( KERN_INFO "%s set device mode faile , rc %d\n", __func__, rc ); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 459 | return rc; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 460 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 461 | |
| 462 | kmutex_lock(&g_smscore_deviceslock); |
| 463 | |
| 464 | rc = smscore_notify_callbacks(coredev, coredev->device, 1); |
| 465 | |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 466 | printk(KERN_INFO "%s device %p started, rc %d\n", __func__, coredev, rc); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 467 | |
| 468 | kmutex_unlock(&g_smscore_deviceslock); |
| 469 | |
| 470 | return rc; |
| 471 | } |
| 472 | |
Michael Krufky | a83ccdd | 2008-05-06 03:11:51 -0300 | [diff] [blame] | 473 | int smscore_sendrequest_and_wait(smscore_device_t *coredev, void *buffer, |
| 474 | size_t size, struct completion *completion) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 475 | { |
| 476 | int rc = coredev->sendrequest_handler(coredev->context, buffer, size); |
| 477 | if (rc < 0) |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 478 | { |
| 479 | printk(KERN_INFO "%s sendrequest returned error %d\n", __func__, rc); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 480 | return rc; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 481 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 482 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 483 | return wait_for_completion_timeout(completion, msecs_to_jiffies(10000)) ? 0 : -ETIME; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 484 | } |
| 485 | |
| 486 | int smscore_load_firmware_family2(smscore_device_t *coredev, void *buffer, size_t size) |
| 487 | { |
| 488 | SmsFirmware_ST* firmware = (SmsFirmware_ST*) buffer; |
| 489 | SmsMsgHdr_ST *msg; |
| 490 | UINT32 mem_address = firmware->StartAddress; |
Michael Krufky | a83ccdd | 2008-05-06 03:11:51 -0300 | [diff] [blame] | 491 | u8 *payload = firmware->Payload; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 492 | int rc = 0; |
| 493 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 494 | printk(KERN_INFO "%s loading FW to addr 0x%x size %d\n", __func__, mem_address,firmware->Length); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 495 | if (coredev->preload_handler) |
| 496 | { |
| 497 | rc = coredev->preload_handler(coredev->context); |
| 498 | if (rc < 0) |
| 499 | return rc; |
| 500 | } |
| 501 | |
| 502 | // PAGE_SIZE buffer shall be enough and dma aligned |
| 503 | msg = (SmsMsgHdr_ST *) kmalloc(PAGE_SIZE, GFP_KERNEL | GFP_DMA); |
| 504 | if (!msg) |
| 505 | return -ENOMEM; |
| 506 | |
| 507 | if (coredev->mode != DEVICE_MODE_NONE) |
| 508 | { |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 509 | PDEBUG("Sending reload command\n"); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 510 | SMS_INIT_MSG(msg, MSG_SW_RELOAD_START_REQ, sizeof(SmsMsgHdr_ST)); |
| 511 | rc = smscore_sendrequest_and_wait(coredev, msg, msg->msgLength, &coredev->reload_start_done); |
| 512 | mem_address = *(UINT32*) &payload[20]; |
| 513 | } |
| 514 | |
| 515 | while (size && rc >= 0) |
| 516 | { |
| 517 | SmsDataDownload_ST *DataMsg = (SmsDataDownload_ST *) msg; |
| 518 | int payload_size = min((int) size, SMS_MAX_PAYLOAD_SIZE); |
| 519 | |
| 520 | SMS_INIT_MSG(msg, MSG_SMS_DATA_DOWNLOAD_REQ, (UINT16)(sizeof(SmsMsgHdr_ST) + sizeof(UINT32) + payload_size)); |
| 521 | |
| 522 | DataMsg->MemAddr = mem_address; |
| 523 | memcpy(DataMsg->Payload, payload, payload_size); |
| 524 | |
| 525 | if (coredev->device_flags & SMS_ROM_NO_RESPONSE && coredev->mode == DEVICE_MODE_NONE) |
| 526 | rc = coredev->sendrequest_handler(coredev->context, DataMsg, DataMsg->xMsgHeader.msgLength); |
| 527 | else |
| 528 | rc = smscore_sendrequest_and_wait(coredev, DataMsg, DataMsg->xMsgHeader.msgLength, &coredev->data_download_done); |
| 529 | |
| 530 | payload += payload_size; |
| 531 | size -= payload_size; |
| 532 | mem_address += payload_size; |
| 533 | } |
| 534 | |
| 535 | if (rc >= 0) |
| 536 | { |
| 537 | if (coredev->mode == DEVICE_MODE_NONE) |
| 538 | { |
| 539 | SmsMsgData_ST* TriggerMsg = (SmsMsgData_ST*) msg; |
| 540 | |
| 541 | SMS_INIT_MSG(msg, MSG_SMS_SWDOWNLOAD_TRIGGER_REQ, sizeof(SmsMsgHdr_ST) + sizeof(UINT32) * 5); |
| 542 | |
| 543 | TriggerMsg->msgData[0] = firmware->StartAddress; // Entry point |
| 544 | TriggerMsg->msgData[1] = 5; // Priority |
| 545 | TriggerMsg->msgData[2] = 0x200; // Stack size |
| 546 | TriggerMsg->msgData[3] = 0; // Parameter |
| 547 | TriggerMsg->msgData[4] = 4; // Task ID |
| 548 | |
| 549 | if (coredev->device_flags & SMS_ROM_NO_RESPONSE) |
| 550 | { |
| 551 | rc = coredev->sendrequest_handler(coredev->context, TriggerMsg, TriggerMsg->xMsgHeader.msgLength); |
| 552 | msleep(100); |
| 553 | } |
| 554 | else |
| 555 | rc = smscore_sendrequest_and_wait(coredev, TriggerMsg, TriggerMsg->xMsgHeader.msgLength, &coredev->trigger_done); |
| 556 | } |
| 557 | else |
| 558 | { |
| 559 | SMS_INIT_MSG(msg, MSG_SW_RELOAD_EXEC_REQ, sizeof(SmsMsgHdr_ST)); |
| 560 | |
| 561 | rc = coredev->sendrequest_handler(coredev->context, msg, msg->msgLength); |
| 562 | } |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 563 | msleep ( 500 ); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 564 | } |
| 565 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 566 | printk("%s rc=%d, postload=%p \n", __func__, rc, coredev->postload_handler); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 567 | |
| 568 | kfree(msg); |
| 569 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 570 | return ((rc >= 0) && coredev->postload_handler) ? |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 571 | coredev->postload_handler(coredev->context) : |
| 572 | rc; |
| 573 | } |
| 574 | |
| 575 | /** |
| 576 | * loads specified firmware into a buffer and calls device loadfirmware_handler |
| 577 | * |
| 578 | * @param coredev pointer to a coredev object returned by smscore_register_device |
| 579 | * @param filename null-terminated string specifies firmware file name |
| 580 | * @param loadfirmware_handler device handler that loads firmware |
| 581 | * |
| 582 | * @return 0 on success, <0 on error. |
| 583 | */ |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 584 | int smscore_load_firmware_from_file(smscore_device_t *coredev, char *filename, loadfirmware_t loadfirmware_handler) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 585 | { |
| 586 | int rc = -ENOENT; |
| 587 | |
| 588 | const struct firmware *fw; |
Michael Krufky | a83ccdd | 2008-05-06 03:11:51 -0300 | [diff] [blame] | 589 | u8 *fw_buffer; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 590 | |
| 591 | if (loadfirmware_handler == NULL && !(coredev->device_flags & SMS_DEVICE_FAMILY2)) |
| 592 | return -EINVAL; |
| 593 | |
| 594 | rc = request_firmware(&fw, filename, coredev->device); |
| 595 | if (rc < 0) |
| 596 | { |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 597 | printk(KERN_INFO "%s failed to open \"%s\"\n", __func__, filename); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 598 | return rc; |
| 599 | } |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 600 | printk(KERN_INFO "%s read FW %s, size=%d\"\n", __func__, filename, fw->size); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 601 | fw_buffer = kmalloc(ALIGN(fw->size, SMS_ALLOC_ALIGNMENT), GFP_KERNEL | GFP_DMA); |
| 602 | if (fw_buffer) |
| 603 | { |
| 604 | memcpy(fw_buffer, fw->data, fw->size); |
| 605 | |
| 606 | rc = (coredev->device_flags & SMS_DEVICE_FAMILY2) ? |
| 607 | smscore_load_firmware_family2(coredev, fw_buffer, fw->size) : |
| 608 | loadfirmware_handler(coredev->context, fw_buffer, fw->size); |
| 609 | |
| 610 | kfree(fw_buffer); |
| 611 | } |
| 612 | else |
| 613 | { |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 614 | printk(KERN_INFO "%s failed to allocate firmware buffer\n", __func__); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 615 | rc = -ENOMEM; |
| 616 | } |
| 617 | |
| 618 | release_firmware(fw); |
| 619 | |
| 620 | return rc; |
| 621 | } |
| 622 | |
Michael Krufky | 494d24c | 2008-06-14 07:40:41 -0300 | [diff] [blame^] | 623 | int smscore_load_firmware_from_buffer(smscore_device_t *coredev, u8 *buffer, int size, int new_mode) |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 624 | { |
| 625 | PERROR("Feature not implemented yet\n"); |
| 626 | return -EFAULT; |
| 627 | } |
| 628 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 629 | /** |
| 630 | * notifies all clients registered with the device, notifies hotplugs, frees all buffers and coredev object |
| 631 | * |
| 632 | * @param coredev pointer to a coredev object returned by smscore_register_device |
| 633 | * |
| 634 | * @return 0 on success, <0 on error. |
| 635 | */ |
| 636 | void smscore_unregister_device(smscore_device_t *coredev) |
| 637 | { |
| 638 | smscore_buffer_t *cb; |
| 639 | int num_buffers = 0; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 640 | int retry = 0; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 641 | |
| 642 | kmutex_lock(&g_smscore_deviceslock); |
| 643 | |
| 644 | smscore_notify_clients(coredev); |
| 645 | smscore_notify_callbacks(coredev, NULL, 0); |
| 646 | |
| 647 | // at this point all buffers should be back |
| 648 | // onresponse must no longer be called |
| 649 | |
| 650 | while (1) |
| 651 | { |
| 652 | while ((cb = smscore_getbuffer(coredev))) |
| 653 | { |
| 654 | kfree(cb); |
| 655 | num_buffers ++; |
| 656 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 657 | if (num_buffers == coredev->num_buffers) |
| 658 | break; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 659 | if (++retry > 10) |
| 660 | { |
| 661 | printk(KERN_INFO "%s exiting although not all buffers released.\n", __func__); |
| 662 | break; |
| 663 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 664 | |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 665 | printk(KERN_INFO "%s waiting for %d buffer(s)\n", __func__, coredev->num_buffers - num_buffers); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 666 | msleep(100); |
| 667 | } |
| 668 | |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 669 | printk(KERN_INFO "%s freed %d buffers\n", __func__, num_buffers); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 670 | |
| 671 | if (coredev->common_buffer) |
| 672 | dma_free_coherent(NULL, coredev->common_buffer_size, coredev->common_buffer, coredev->common_buffer_phys); |
| 673 | |
| 674 | list_del(&coredev->entry); |
| 675 | kfree(coredev); |
| 676 | |
| 677 | kmutex_unlock(&g_smscore_deviceslock); |
| 678 | |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 679 | printk(KERN_INFO "%s device %p destroyed\n", __func__, coredev); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 680 | } |
| 681 | |
| 682 | int smscore_detect_mode(smscore_device_t *coredev) |
| 683 | { |
| 684 | void *buffer = kmalloc(sizeof(SmsMsgHdr_ST) + SMS_DMA_ALIGNMENT, GFP_KERNEL | GFP_DMA); |
| 685 | SmsMsgHdr_ST *msg = (SmsMsgHdr_ST *) SMS_ALIGN_ADDRESS(buffer); |
| 686 | int rc; |
| 687 | |
| 688 | if (!buffer) |
| 689 | return -ENOMEM; |
| 690 | |
| 691 | SMS_INIT_MSG(msg, MSG_SMS_GET_VERSION_EX_REQ, sizeof(SmsMsgHdr_ST)); |
| 692 | |
| 693 | rc = smscore_sendrequest_and_wait(coredev, msg, msg->msgLength, &coredev->version_ex_done); |
| 694 | if (rc == -ETIME) |
| 695 | { |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 696 | printk("%s: MSG_SMS_GET_VERSION_EX_REQ failed first try\n", __func__); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 697 | |
| 698 | if (wait_for_completion_timeout(&coredev->resume_done, msecs_to_jiffies(5000))) |
| 699 | { |
| 700 | rc = smscore_sendrequest_and_wait(coredev, msg, msg->msgLength, &coredev->version_ex_done); |
| 701 | if (rc < 0) |
| 702 | { |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 703 | printk("%s: MSG_SMS_GET_VERSION_EX_REQ failed second try, rc %d\n", __func__, rc); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 704 | } |
| 705 | } |
| 706 | else |
| 707 | rc = -ETIME; |
| 708 | } |
| 709 | |
| 710 | kfree(buffer); |
| 711 | |
| 712 | return rc; |
| 713 | } |
| 714 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 715 | char *smscore_fw_lkup[][SMS_NUM_OF_DEVICE_TYPES] = |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 716 | { |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 717 | /*Stellar NOVA A0 Nova B0 VEGA*/ |
| 718 | /*DVBT*/ {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"}, |
| 719 | /*DVBH*/ {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"}, |
| 720 | /*TDMB*/ {"none", "tdmb_nova_12mhz.inp", "none" "none"}, |
| 721 | /*DABIP*/ {"none", "none", "none", "none"}, |
| 722 | /*BDA*/ {"none", "dvb_nova_12mhz.inp", "dvb_nova_12mhz_b0.inp", "none"}, |
| 723 | /*ISDBT*/ {"none", "isdbt_nova_12mhz.inp", "dvb_nova_12mhz.inp", "none"}, |
| 724 | /*ISDBTBDA*/{"none", "isdbt_nova_12mhz.inp", "isdbt_nova_12mhz_b0.inp", "none"}, |
| 725 | /*CMMB*/ {"none", "none", "none", "cmmb_vega_12mhz.inp"} |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 726 | }; |
| 727 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 728 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 729 | /** |
| 730 | * calls device handler to change mode of operation |
| 731 | * NOTE: stellar/usb may disconnect when changing mode |
| 732 | * |
| 733 | * @param coredev pointer to a coredev object returned by smscore_register_device |
| 734 | * @param mode requested mode of operation |
| 735 | * |
| 736 | * @return 0 on success, <0 on error. |
| 737 | */ |
| 738 | int smscore_set_device_mode(smscore_device_t *coredev, int mode) |
| 739 | { |
| 740 | void *buffer; |
| 741 | int rc = 0; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 742 | sms_device_type_st type; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 743 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 744 | PDEBUG("set device mode to %d\n", mode ); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 745 | if (coredev->device_flags & SMS_DEVICE_FAMILY2) |
| 746 | { |
| 747 | if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_RAW_TUNER) |
| 748 | { |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 749 | printk(KERN_INFO "%s invalid mode specified %d\n", __func__, mode); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 750 | return -EINVAL; |
| 751 | } |
| 752 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 753 | smscore_registry_setmode(coredev->devpath, mode); |
| 754 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 755 | if (!(coredev->device_flags & SMS_DEVICE_NOT_READY)) |
| 756 | { |
| 757 | rc = smscore_detect_mode(coredev); |
| 758 | if (rc < 0) |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 759 | { |
| 760 | printk(KERN_INFO "%s mode detect failed %d\n", __func__, rc); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 761 | return rc; |
| 762 | } |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 763 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 764 | |
| 765 | if (coredev->mode == mode) |
| 766 | { |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 767 | printk(KERN_INFO "%s device mode %d already set\n", __func__, mode); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 768 | return 0; |
| 769 | } |
| 770 | |
| 771 | if (!(coredev->modes_supported & (1 << mode))) |
| 772 | { |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 773 | type = smscore_registry_gettype ( coredev->devpath ); |
| 774 | rc = smscore_load_firmware_from_file ( coredev, smscore_fw_lkup[mode][type], NULL ); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 775 | if (rc < 0) |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 776 | { |
| 777 | printk(KERN_INFO "%s load firmware failed %d\n", __func__, rc); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 778 | return rc; |
| 779 | } |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 780 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 781 | else |
| 782 | { |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 783 | printk(KERN_INFO "%s mode %d supported by running firmware\n", __func__, mode); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 784 | } |
| 785 | |
| 786 | buffer = kmalloc(sizeof(SmsMsgData_ST) + SMS_DMA_ALIGNMENT, GFP_KERNEL | GFP_DMA); |
| 787 | if (buffer) |
| 788 | { |
| 789 | SmsMsgData_ST *msg = (SmsMsgData_ST *) SMS_ALIGN_ADDRESS(buffer); |
| 790 | |
| 791 | SMS_INIT_MSG(&msg->xMsgHeader, MSG_SMS_INIT_DEVICE_REQ, sizeof(SmsMsgData_ST)); |
| 792 | msg->msgData[0] = mode; |
| 793 | |
| 794 | rc = smscore_sendrequest_and_wait(coredev, msg, msg->xMsgHeader.msgLength, &coredev->init_device_done); |
| 795 | |
| 796 | kfree(buffer); |
| 797 | } |
| 798 | else |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 799 | { |
| 800 | printk(KERN_INFO "%s Could not allocate buffer for init device message.\n", __func__); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 801 | rc = -ENOMEM; |
| 802 | } |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 803 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 804 | else |
| 805 | { |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 806 | if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA) |
| 807 | { |
| 808 | printk(KERN_INFO "%s invalid mode specified %d\n", __func__, mode); |
| 809 | return -EINVAL; |
| 810 | } |
| 811 | |
| 812 | smscore_registry_setmode(coredev->devpath, mode); |
| 813 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 814 | if (coredev->detectmode_handler) |
| 815 | coredev->detectmode_handler(coredev->context, &coredev->mode); |
| 816 | |
| 817 | if (coredev->mode != mode && coredev->setmode_handler) |
| 818 | rc = coredev->setmode_handler(coredev->context, mode); |
| 819 | } |
| 820 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 821 | if (rc >= 0) |
| 822 | { |
| 823 | coredev->mode = mode; |
| 824 | coredev->device_flags &= ~SMS_DEVICE_NOT_READY; |
| 825 | } |
| 826 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 827 | if (rc != 0) |
| 828 | printk(KERN_INFO "%s return error code %d.\n", __func__, rc); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 829 | return rc; |
| 830 | } |
| 831 | |
| 832 | /** |
| 833 | * calls device handler to get current mode of operation |
| 834 | * |
| 835 | * @param coredev pointer to a coredev object returned by smscore_register_device |
| 836 | * |
| 837 | * @return current mode |
| 838 | */ |
| 839 | int smscore_get_device_mode(smscore_device_t *coredev) |
| 840 | { |
| 841 | return coredev->mode; |
| 842 | } |
| 843 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 844 | /** |
| 845 | * find client by response id & type within the clients list. |
| 846 | * return client handle or NULL. |
| 847 | * |
| 848 | * @param coredev pointer to a coredev object returned by smscore_register_device |
| 849 | * @param data_type client data type (SMS_DONT_CARE for all types) |
| 850 | * @param id client id (SMS_DONT_CARE for all id ) |
| 851 | * |
| 852 | */ |
| 853 | smscore_client_t *smscore_find_client(smscore_device_t *coredev, int data_type, int id) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 854 | { |
| 855 | smscore_client_t *client = NULL; |
| 856 | struct list_head *next, *first; |
| 857 | unsigned long flags; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 858 | struct list_head *firstid, *nextid; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 859 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 860 | |
| 861 | spin_lock_irqsave(&coredev->clientslock, flags); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 862 | first = &coredev->clients; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 863 | for (next = first->next; (next != first) && !client; next = next->next) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 864 | { |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 865 | firstid = &((smscore_client_t*)next )->idlist; |
| 866 | for (nextid = firstid->next ; nextid != firstid ; nextid = nextid->next) |
| 867 | { |
| 868 | if ((((smscore_idlist_t*)nextid)->id == id) && |
| 869 | (((smscore_idlist_t*)nextid)->data_type == data_type || |
| 870 | (((smscore_idlist_t*)nextid)->data_type == 0))) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 871 | { |
| 872 | client = (smscore_client_t*) next; |
| 873 | break; |
| 874 | } |
| 875 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 876 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 877 | spin_unlock_irqrestore(&coredev->clientslock, flags); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 878 | return client; |
| 879 | } |
| 880 | |
| 881 | /** |
| 882 | * find client by response id/type, call clients onresponse handler |
| 883 | * return buffer to pool on error |
| 884 | * |
| 885 | * @param coredev pointer to a coredev object returned by smscore_register_device |
| 886 | * @param cb pointer to response buffer descriptor |
| 887 | * |
| 888 | */ |
| 889 | void smscore_onresponse(smscore_device_t *coredev, smscore_buffer_t *cb) |
| 890 | { |
Michael Krufky | 494d24c | 2008-06-14 07:40:41 -0300 | [diff] [blame^] | 891 | SmsMsgHdr_ST *phdr = (SmsMsgHdr_ST *)((u8 *) cb->p + cb->offset); |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 892 | smscore_client_t *client = smscore_find_client(coredev, phdr->msgType, phdr->msgDstId); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 893 | int rc = -EBUSY; |
| 894 | |
| 895 | static unsigned long last_sample_time = 0; |
| 896 | static int data_total = 0; |
| 897 | unsigned long time_now = jiffies_to_msecs(jiffies); |
| 898 | |
| 899 | if (!last_sample_time) |
| 900 | last_sample_time = time_now; |
| 901 | |
| 902 | if (time_now - last_sample_time > 10000) |
| 903 | { |
| 904 | printk("\n%s data rate %d bytes/secs\n", __func__, (int)((data_total * 1000) / (time_now - last_sample_time))); |
| 905 | |
| 906 | last_sample_time = time_now; |
| 907 | data_total = 0; |
| 908 | } |
| 909 | |
| 910 | data_total += cb->size; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 911 | /* If no client registered for type & id, check for control client where type is not registered*/ |
| 912 | // if (!client) |
| 913 | // client = smscore_find_client( coredev, 0, phdr->msgDstId); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 914 | if (client) |
| 915 | rc = client->onresponse_handler(client->context, cb); |
| 916 | |
| 917 | if (rc < 0) |
| 918 | { |
| 919 | switch (phdr->msgType) |
| 920 | { |
| 921 | case MSG_SMS_GET_VERSION_EX_RES: |
| 922 | { |
| 923 | SmsVersionRes_ST *ver = (SmsVersionRes_ST*) phdr; |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 924 | printk("%s: MSG_SMS_GET_VERSION_EX_RES id %d prots 0x%x ver %d.%d\n", __func__, ver->FirmwareId, ver->SupportedProtocols, ver->RomVersionMajor, ver->RomVersionMinor); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 925 | |
| 926 | coredev->mode = ver->FirmwareId == 255 ? DEVICE_MODE_NONE : ver->FirmwareId; |
| 927 | coredev->modes_supported = ver->SupportedProtocols; |
| 928 | |
| 929 | complete(&coredev->version_ex_done); |
| 930 | break; |
| 931 | } |
| 932 | |
| 933 | case MSG_SMS_INIT_DEVICE_RES: |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 934 | printk("%s: MSG_SMS_INIT_DEVICE_RES\n", __func__); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 935 | complete(&coredev->init_device_done); |
| 936 | break; |
| 937 | |
| 938 | case MSG_SW_RELOAD_START_RES: |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 939 | printk("%s: MSG_SW_RELOAD_START_RES\n", __func__); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 940 | complete(&coredev->reload_start_done); |
| 941 | break; |
| 942 | |
| 943 | case MSG_SMS_DATA_DOWNLOAD_RES: |
| 944 | complete(&coredev->data_download_done); |
| 945 | break; |
| 946 | |
| 947 | case MSG_SW_RELOAD_EXEC_RES: |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 948 | printk("%s: MSG_SW_RELOAD_EXEC_RES\n", __func__); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 949 | break; |
| 950 | |
| 951 | case MSG_SMS_SWDOWNLOAD_TRIGGER_RES: |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 952 | printk("%s: MSG_SMS_SWDOWNLOAD_TRIGGER_RES\n", __func__); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 953 | complete(&coredev->trigger_done); |
| 954 | break; |
| 955 | |
| 956 | case MSG_SMS_SLEEP_RESUME_COMP_IND: |
| 957 | complete(&coredev->resume_done); |
| 958 | break; |
| 959 | |
| 960 | default: |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 961 | //printk(KERN_INFO "%s no client (%p) or error (%d), type:%d dstid:%d\n", __func__, client, rc, phdr->msgType, phdr->msgDstId); |
| 962 | break; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 963 | } |
| 964 | |
| 965 | smscore_putbuffer(coredev, cb); |
| 966 | } |
| 967 | } |
| 968 | |
| 969 | /** |
| 970 | * return pointer to next free buffer descriptor from core pool |
| 971 | * |
| 972 | * @param coredev pointer to a coredev object returned by smscore_register_device |
| 973 | * |
| 974 | * @return pointer to descriptor on success, NULL on error. |
| 975 | */ |
| 976 | smscore_buffer_t *smscore_getbuffer(smscore_device_t *coredev) |
| 977 | { |
| 978 | smscore_buffer_t *cb = NULL; |
| 979 | unsigned long flags; |
| 980 | |
| 981 | spin_lock_irqsave(&coredev->bufferslock, flags); |
| 982 | |
| 983 | if (!list_empty(&coredev->buffers)) |
| 984 | { |
| 985 | cb = (smscore_buffer_t *) coredev->buffers.next; |
| 986 | list_del(&cb->entry); |
| 987 | } |
| 988 | |
| 989 | spin_unlock_irqrestore(&coredev->bufferslock, flags); |
| 990 | |
| 991 | return cb; |
| 992 | } |
| 993 | |
| 994 | /** |
| 995 | * return buffer descriptor to a pool |
| 996 | * |
| 997 | * @param coredev pointer to a coredev object returned by smscore_register_device |
| 998 | * @param cb pointer buffer descriptor |
| 999 | * |
| 1000 | */ |
| 1001 | void smscore_putbuffer(smscore_device_t *coredev, smscore_buffer_t *cb) |
| 1002 | { |
| 1003 | list_add_locked(&cb->entry, &coredev->buffers, &coredev->bufferslock); |
| 1004 | } |
| 1005 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1006 | int smscore_validate_client(smscore_device_t *coredev, smscore_client_t *client, int data_type, int id) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1007 | { |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1008 | smscore_idlist_t *listentry; |
| 1009 | smscore_client_t *registered_client; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1010 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1011 | if ( !client ) |
| 1012 | { |
| 1013 | PERROR("bad parameter.\n"); |
| 1014 | return -EFAULT; |
| 1015 | } |
| 1016 | registered_client = smscore_find_client(coredev, data_type, id); |
| 1017 | if (registered_client == client) |
| 1018 | { |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1019 | return 0; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1020 | } |
| 1021 | if (registered_client) |
| 1022 | { |
| 1023 | PERROR("The msg ID already registered to another client.\n"); |
| 1024 | return -EEXIST; |
| 1025 | } |
| 1026 | listentry = kzalloc ( sizeof ( smscore_idlist_t ), GFP_KERNEL ); |
| 1027 | if ( !listentry ) |
| 1028 | { |
| 1029 | PERROR("Can't allocate memory for client id.\n"); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1030 | return -ENOMEM; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1031 | } |
| 1032 | listentry->id = id; |
| 1033 | listentry->data_type = data_type; |
| 1034 | list_add_locked ( &listentry->entry, &client->idlist, &coredev->clientslock ); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1035 | return 0; |
| 1036 | } |
| 1037 | |
| 1038 | /** |
| 1039 | * creates smsclient object, check that id is taken by another client |
| 1040 | * |
| 1041 | * @param coredev pointer to a coredev object from clients hotplug |
| 1042 | * @param initial_id all messages with this id would be sent to this client |
| 1043 | * @param data_type all messages of this type would be sent to this client |
| 1044 | * @param onresponse_handler client handler that is called to process incoming messages |
| 1045 | * @param onremove_handler client handler that is called when device is removed |
| 1046 | * @param context client-specific context |
| 1047 | * @param client pointer to a value that receives created smsclient object |
| 1048 | * |
| 1049 | * @return 0 on success, <0 on error. |
| 1050 | */ |
| 1051 | int smscore_register_client(smscore_device_t *coredev, smsclient_params_t *params, smscore_client_t **client) |
| 1052 | { |
Michael Krufky | a83ccdd | 2008-05-06 03:11:51 -0300 | [diff] [blame] | 1053 | smscore_client_t *newclient; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1054 | // check that no other channel with same parameters exists |
| 1055 | if (smscore_find_client(coredev, params->data_type, params->initial_id)) |
| 1056 | { |
| 1057 | PERROR("Client already exist.\n"); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1058 | return -EEXIST; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1059 | } |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1060 | |
| 1061 | newclient = kzalloc(sizeof(smscore_client_t), GFP_KERNEL); |
| 1062 | if (!newclient) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1063 | { |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1064 | PERROR("Failed to allocate memory for client.\n"); |
| 1065 | return -ENOMEM; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1066 | } |
| 1067 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1068 | INIT_LIST_HEAD ( &newclient->idlist); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1069 | newclient->coredev = coredev; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1070 | newclient->onresponse_handler = params->onresponse_handler; |
| 1071 | newclient->onremove_handler = params->onremove_handler; |
| 1072 | newclient->context = params->context; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1073 | list_add_locked(&newclient->entry, &coredev->clients, &coredev->clientslock); |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1074 | smscore_validate_client(coredev, newclient, params->data_type, params->initial_id); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1075 | *client = newclient; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1076 | PDEBUG ( "%p %d %d\n", params->context, params->data_type, params->initial_id ); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1077 | |
| 1078 | return 0; |
| 1079 | } |
| 1080 | |
| 1081 | /** |
| 1082 | * frees smsclient object and all subclients associated with it |
| 1083 | * |
| 1084 | * @param client pointer to smsclient object returned by smscore_register_client |
| 1085 | * |
| 1086 | */ |
| 1087 | void smscore_unregister_client(smscore_client_t *client) |
| 1088 | { |
| 1089 | smscore_device_t *coredev = client->coredev; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1090 | unsigned long flags; |
| 1091 | |
| 1092 | spin_lock_irqsave(&coredev->clientslock, flags); |
| 1093 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1094 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1095 | while (!list_empty( &client->idlist)) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1096 | { |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1097 | smscore_idlist_t *identry = (smscore_idlist_t*)client->idlist.next; |
| 1098 | list_del ( &identry->entry ); |
| 1099 | kfree ( identry ); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1100 | } |
| 1101 | |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1102 | printk(KERN_INFO "%s %p\n", __func__, client->context); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1103 | |
| 1104 | list_del(&client->entry); |
| 1105 | kfree(client); |
| 1106 | |
| 1107 | spin_unlock_irqrestore(&coredev->clientslock, flags); |
| 1108 | } |
| 1109 | |
| 1110 | /** |
| 1111 | * verifies that source id is not taken by another client, |
| 1112 | * calls device handler to send requests to the device |
| 1113 | * |
| 1114 | * @param client pointer to smsclient object returned by smscore_register_client |
| 1115 | * @param buffer pointer to a request buffer |
| 1116 | * @param size size (in bytes) of request buffer |
| 1117 | * |
| 1118 | * @return 0 on success, <0 on error. |
| 1119 | */ |
| 1120 | int smsclient_sendrequest(smscore_client_t *client, void *buffer, size_t size) |
| 1121 | { |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1122 | smscore_device_t *coredev; |
Michael Krufky | 494d24c | 2008-06-14 07:40:41 -0300 | [diff] [blame^] | 1123 | SmsMsgHdr_ST *phdr = (SmsMsgHdr_ST *) buffer; |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1124 | int rc; |
| 1125 | |
| 1126 | if ( client == NULL ) |
| 1127 | { |
| 1128 | printk(KERN_ERR "%s Got NULL client\n", __func__ ); |
| 1129 | return -EINVAL; |
| 1130 | } |
| 1131 | |
| 1132 | coredev = client->coredev; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1133 | |
| 1134 | // check that no other channel with same id exists |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1135 | if ( coredev == NULL ) |
| 1136 | { |
| 1137 | printk(KERN_ERR "%s Got NULL coredev\n", __func__ ); |
| 1138 | return -EINVAL; |
| 1139 | } |
| 1140 | |
| 1141 | rc = smscore_validate_client(client->coredev, client, 0, phdr->msgSrcId); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1142 | if (rc < 0) |
| 1143 | return rc; |
| 1144 | |
| 1145 | return coredev->sendrequest_handler(coredev->context, buffer, size); |
| 1146 | } |
| 1147 | |
| 1148 | /** |
| 1149 | * return the size of large (common) buffer |
| 1150 | * |
| 1151 | * @param coredev pointer to a coredev object from clients hotplug |
| 1152 | * |
| 1153 | * @return size (in bytes) of the buffer |
| 1154 | */ |
| 1155 | int smscore_get_common_buffer_size(smscore_device_t *coredev) |
| 1156 | { |
| 1157 | return coredev->common_buffer_size; |
| 1158 | } |
| 1159 | |
| 1160 | /** |
| 1161 | * maps common buffer (if supported by platform) |
| 1162 | * |
| 1163 | * @param coredev pointer to a coredev object from clients hotplug |
| 1164 | * @param vma pointer to vma struct from mmap handler |
| 1165 | * |
| 1166 | * @return 0 on success, <0 on error. |
| 1167 | */ |
Michael Krufky | a83ccdd | 2008-05-06 03:11:51 -0300 | [diff] [blame] | 1168 | int smscore_map_common_buffer(smscore_device_t *coredev, |
| 1169 | struct vm_area_struct *vma) |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1170 | { |
| 1171 | unsigned long end = vma->vm_end, start = vma->vm_start, size = PAGE_ALIGN(coredev->common_buffer_size); |
| 1172 | |
| 1173 | if (!(vma->vm_flags & (VM_READ | VM_SHARED)) || (vma->vm_flags & VM_WRITE)) |
| 1174 | { |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 1175 | printk(KERN_INFO "%s invalid vm flags\n", __func__); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1176 | return -EINVAL; |
| 1177 | } |
| 1178 | |
| 1179 | if ((end - start) != size) |
| 1180 | { |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 1181 | printk(KERN_INFO "%s invalid size %d expected %d\n", __func__, (int)(end - start), (int) size); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1182 | return -EINVAL; |
| 1183 | } |
| 1184 | |
| 1185 | if (remap_pfn_range(vma, start, coredev->common_buffer_phys >> PAGE_SHIFT, size, pgprot_noncached(vma->vm_page_prot))) |
| 1186 | { |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 1187 | printk(KERN_INFO "%s remap_page_range failed\n", __func__); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1188 | return -EAGAIN; |
| 1189 | } |
| 1190 | |
| 1191 | return 0; |
| 1192 | } |
| 1193 | |
| 1194 | int smscore_module_init(void) |
| 1195 | { |
Steven Toth | c646579 | 2008-05-19 19:09:21 -0300 | [diff] [blame] | 1196 | int rc = 0; |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1197 | |
| 1198 | INIT_LIST_HEAD(&g_smscore_notifyees); |
| 1199 | INIT_LIST_HEAD(&g_smscore_devices); |
| 1200 | kmutex_init(&g_smscore_deviceslock); |
| 1201 | |
| 1202 | INIT_LIST_HEAD(&g_smscore_registry); |
| 1203 | kmutex_init(&g_smscore_registrylock); |
| 1204 | |
Steven Toth | eae5566 | 2008-05-22 18:04:36 -0300 | [diff] [blame] | 1205 | /* USB Register */ |
| 1206 | rc = smsusb_register(); |
| 1207 | |
| 1208 | /* DVB Register */ |
| 1209 | rc = smsdvb_register(); |
| 1210 | |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 1211 | printk(KERN_INFO "%s, rc %d\n", __func__, rc); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1212 | |
| 1213 | return rc; |
| 1214 | } |
| 1215 | |
| 1216 | void smscore_module_exit(void) |
| 1217 | { |
Steven Toth | eae5566 | 2008-05-22 18:04:36 -0300 | [diff] [blame] | 1218 | |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1219 | kmutex_lock(&g_smscore_deviceslock); |
| 1220 | while (!list_empty(&g_smscore_notifyees)) |
| 1221 | { |
| 1222 | smscore_device_notifyee_t *notifyee = (smscore_device_notifyee_t *) g_smscore_notifyees.next; |
| 1223 | |
| 1224 | list_del(¬ifyee->entry); |
| 1225 | kfree(notifyee); |
| 1226 | } |
| 1227 | kmutex_unlock(&g_smscore_deviceslock); |
| 1228 | |
| 1229 | kmutex_lock(&g_smscore_registrylock); |
| 1230 | while (!list_empty(&g_smscore_registry)) |
| 1231 | { |
| 1232 | smscore_registry_entry_t *entry = (smscore_registry_entry_t *) g_smscore_registry.next; |
| 1233 | |
| 1234 | list_del(&entry->entry); |
| 1235 | kfree(entry); |
| 1236 | } |
| 1237 | kmutex_unlock(&g_smscore_registrylock); |
| 1238 | |
Steven Toth | eae5566 | 2008-05-22 18:04:36 -0300 | [diff] [blame] | 1239 | /* DVB UnRegister */ |
| 1240 | smsdvb_unregister(); |
| 1241 | |
| 1242 | /* Unregister USB */ |
| 1243 | smsusb_unregister(); |
| 1244 | |
Michael Krufky | 1865811 | 2008-05-22 18:30:17 -0300 | [diff] [blame] | 1245 | printk(KERN_INFO "%s\n", __func__); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1246 | } |
| 1247 | |
| 1248 | module_init(smscore_module_init); |
| 1249 | module_exit(smscore_module_exit); |
| 1250 | |
| 1251 | MODULE_DESCRIPTION("smscore"); |
Michael Krufky | f17407a | 2008-06-14 00:43:26 -0300 | [diff] [blame] | 1252 | MODULE_AUTHOR ( "Siano Mobile Silicon,,, (doronc@siano-ms.com)" ); |
Michael Krufky | 2e5c1ec8 | 2008-05-19 18:56:13 -0300 | [diff] [blame] | 1253 | MODULE_LICENSE("GPL"); |
| 1254 | |