1 #ifndef _LINUX_COMPAT_H_ 2 #define _LINUX_COMPAT_H_ 3 4 #include <malloc.h> 5 #include <linux/types.h> 6 #include <linux/err.h> 7 8 struct unused {}; 9 typedef struct unused unused_t; 10 11 struct p_current{ 12 int pid; 13 }; 14 15 extern struct p_current *current; 16 17 #define ndelay(x) udelay(1) 18 19 #define dev_dbg(dev, fmt, args...) \ 20 debug(fmt, ##args) 21 #define dev_vdbg(dev, fmt, args...) \ 22 debug(fmt, ##args) 23 #define dev_info(dev, fmt, args...) \ 24 printf(fmt, ##args) 25 #define dev_err(dev, fmt, args...) \ 26 printf(fmt, ##args) 27 #define printk printf 28 #define printk_once printf 29 30 #define KERN_EMERG 31 #define KERN_ALERT 32 #define KERN_CRIT 33 #define KERN_ERR 34 #define KERN_WARNING 35 #define KERN_NOTICE 36 #define KERN_INFO 37 #define KERN_DEBUG 38 39 void *kmalloc(size_t size, int flags); 40 void *kzalloc(size_t size, int flags); 41 #define vmalloc(size) kmalloc(size, 0) 42 #define __vmalloc(size, flags, pgsz) kmalloc(size, flags) 43 #define kfree(ptr) free(ptr) 44 #define vfree(ptr) free(ptr) 45 46 struct kmem_cache { int sz; }; 47 48 struct kmem_cache *get_mem(int element_sz); 49 #define kmem_cache_create(a, sz, c, d, e) get_mem(sz) 50 void *kmem_cache_alloc(struct kmem_cache *obj, int flag); 51 #define kmem_cache_free(obj, size) free(size) 52 #define kmem_cache_destroy(obj) free(obj) 53 54 #define DECLARE_WAITQUEUE(...) do { } while (0) 55 #define add_wait_queue(...) do { } while (0) 56 #define remove_wait_queue(...) do { } while (0) 57 58 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c)) 59 60 /* 61 * ..and if you can't take the strict 62 * types, you can specify one yourself. 63 * 64 * Or not use min/max at all, of course. 65 */ 66 #define min_t(type,x,y) \ 67 ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; }) 68 #define max_t(type,x,y) \ 69 ({ type __x = (x); type __y = (y); __x > __y ? __x: __y; }) 70 71 #ifndef BUG 72 #define BUG() do { \ 73 printf("U-Boot BUG at %s:%d!\n", __FILE__, __LINE__); \ 74 } while (0) 75 76 #define BUG_ON(condition) do { if (condition) BUG(); } while(0) 77 #endif /* BUG */ 78 79 #define WARN_ON(x) if (x) {printf("WARNING in %s line %d\n" \ 80 , __FILE__, __LINE__); } 81 82 #define PAGE_SIZE 4096 83 84 /** 85 * upper_32_bits - return MSB bits 32-63 of a number if little endian, or 86 * return MSB bits 0-31 of a number if big endian. 87 * @n: the number we're accessing 88 * 89 * A basic shift-right of a 64- or 32-bit quantity. Use this to suppress 90 * the "right shift count >= width of type" warning when that quantity is 91 * 32-bits. 92 */ 93 #define upper_32_bits(n) ((u32)(((n) >> 16) >> 16)) 94 95 /** 96 * lower_32_bits - return LSB bits 0-31 of a number if little endian, or 97 * return LSB bits 32-63 of a number if big endian. 98 * @n: the number we're accessing 99 */ 100 #define lower_32_bits(n) ((u32)(n)) 101 102 /* drivers/char/random.c */ 103 #define get_random_bytes(...) 104 105 /* idr.c */ 106 #define GFP_ATOMIC ((gfp_t) 0) 107 #define GFP_KERNEL ((gfp_t) 0) 108 #define GFP_NOFS ((gfp_t) 0) 109 #define GFP_USER ((gfp_t) 0) 110 #define __GFP_NOWARN ((gfp_t) 0) 111 112 /* include/linux/leds.h */ 113 struct led_trigger {}; 114 115 #define DEFINE_LED_TRIGGER(x) static struct led_trigger *x; 116 enum led_brightness { 117 LED_OFF = 0, 118 LED_HALF = 127, 119 LED_FULL = 255, 120 }; 121 122 static inline void led_trigger_register_simple(const char *name, 123 struct led_trigger **trigger) {} 124 static inline void led_trigger_unregister_simple(struct led_trigger *trigger) {} 125 static inline void led_trigger_event(struct led_trigger *trigger, 126 enum led_brightness event) {} 127 128 /* include/linux/log2.h */ 129 static inline int is_power_of_2(unsigned long n) 130 { 131 return (n != 0 && ((n & (n - 1)) == 0)); 132 } 133 134 /* uapi/linux/limits.h */ 135 #define XATTR_LIST_MAX 65536 /* size of extended attribute namelist (64k) */ 136 137 /** 138 * The type used for indexing onto a disc or disc partition. 139 * 140 * Linux always considers sectors to be 512 bytes long independently 141 * of the devices real block size. 142 * 143 * blkcnt_t is the type of the inode's block count. 144 */ 145 #ifdef CONFIG_LBDAF 146 typedef u64 sector_t; 147 typedef u64 blkcnt_t; 148 #else 149 typedef unsigned long sector_t; 150 typedef unsigned long blkcnt_t; 151 #endif 152 153 #define ENOTSUPP 524 /* Operation is not supported */ 154 155 /* from include/linux/kernel.h */ 156 /* 157 * This looks more complex than it should be. But we need to 158 * get the type for the ~ right in round_down (it needs to be 159 * as wide as the result!), and we want to evaluate the macro 160 * arguments just once each. 161 */ 162 #define __round_mask(x, y) ((__typeof__(x))((y)-1)) 163 #define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1) 164 #define round_down(x, y) ((x) & ~__round_mask(x, y)) 165 166 /* module */ 167 #define THIS_MODULE 0 168 #define try_module_get(...) 1 169 #define module_put(...) do { } while (0) 170 #define module_init(...) 171 #define module_exit(...) 172 #define EXPORT_SYMBOL(...) 173 #define EXPORT_SYMBOL_GPL(...) 174 #define module_param(...) 175 #define module_param_call(...) 176 #define MODULE_PARM_DESC(...) 177 #define MODULE_VERSION(...) 178 #define MODULE_DESCRIPTION(...) 179 #define MODULE_AUTHOR(...) 180 #define MODULE_LICENSE(...) 181 #define MODULE_ALIAS(...) 182 #define __module_get(...) 183 184 /* character device */ 185 #define MKDEV(...) 0 186 #define MAJOR(dev) 0 187 #define MINOR(dev) 0 188 189 #define alloc_chrdev_region(...) 0 190 #define unregister_chrdev_region(...) 191 192 #define class_create(...) __builtin_return_address(0) 193 #define class_create_file(...) 0 194 #define class_remove_file(...) 195 #define class_destroy(...) 196 #define misc_register(...) 0 197 #define misc_deregister(...) 198 199 #define blocking_notifier_call_chain(...) 0 200 201 /* 202 * Multiplies an integer by a fraction, while avoiding unnecessary 203 * overflow or loss of precision. 204 */ 205 #define mult_frac(x, numer, denom)( \ 206 { \ 207 typeof(x) quot = (x) / (denom); \ 208 typeof(x) rem = (x) % (denom); \ 209 (quot * (numer)) + ((rem * (numer)) / (denom)); \ 210 } \ 211 ) 212 213 #define __initdata 214 #define late_initcall(...) 215 216 #define dev_set_name(...) do { } while (0) 217 #define device_register(...) 0 218 #define volume_sysfs_init(...) 0 219 #define volume_sysfs_close(...) do { } while (0) 220 221 #define init_waitqueue_head(...) do { } while (0) 222 #define wait_event_interruptible(...) 0 223 #define wake_up_interruptible(...) do { } while (0) 224 #define print_hex_dump(...) do { } while (0) 225 #define dump_stack(...) do { } while (0) 226 227 #define task_pid_nr(x) 0 228 #define set_freezable(...) do { } while (0) 229 #define try_to_freeze(...) 0 230 #define set_current_state(...) do { } while (0) 231 #define kthread_should_stop(...) 0 232 #define schedule() do { } while (0) 233 234 #define setup_timer(timer, func, data) do {} while (0) 235 #define del_timer_sync(timer) do {} while (0) 236 #define schedule_work(work) do {} while (0) 237 #define INIT_WORK(work, fun) do {} while (0) 238 239 struct work_struct {}; 240 241 unsigned long copy_from_user(void *dest, const void *src, 242 unsigned long count); 243 244 void *vzalloc(unsigned long size); 245 246 typedef unused_t spinlock_t; 247 typedef int wait_queue_head_t; 248 249 #define spin_lock_init(lock) do {} while (0) 250 #define spin_lock(lock) do {} while (0) 251 #define spin_unlock(lock) do {} while (0) 252 #define spin_lock_irqsave(lock, flags) do { debug("%lu\n", flags); } while (0) 253 #define spin_unlock_irqrestore(lock, flags) do { flags = 0; } while (0) 254 255 #define DEFINE_MUTEX(...) 256 #define mutex_init(...) 257 #define mutex_lock(...) 258 #define mutex_unlock(...) 259 260 #define init_rwsem(...) do { } while (0) 261 #define down_read(...) do { } while (0) 262 #define down_write(...) do { } while (0) 263 #define down_write_trylock(...) 1 264 #define up_read(...) do { } while (0) 265 #define up_write(...) do { } while (0) 266 267 #define cond_resched() do { } while (0) 268 #define yield() do { } while (0) 269 270 #define INT_MAX ((int)(~0U>>1)) 271 272 #define __user 273 #define __init 274 #define __exit 275 #define __devinit 276 #define __devinitdata 277 #define __devinitconst 278 #define __iomem 279 280 #define kthread_create(...) __builtin_return_address(0) 281 #define kthread_stop(...) do { } while (0) 282 #define wake_up_process(...) do { } while (0) 283 284 struct rw_semaphore { int i; }; 285 #define down_write(...) do { } while (0) 286 #define up_write(...) do { } while (0) 287 #define down_read(...) do { } while (0) 288 #define up_read(...) do { } while (0) 289 struct device { 290 struct device *parent; 291 struct class *class; 292 dev_t devt; /* dev_t, creates the sysfs "dev" */ 293 void (*release)(struct device *dev); 294 /* This is used from drivers/usb/musb-new subsystem only */ 295 void *driver_data; /* data private to the driver */ 296 void *device_data; /* data private to the device */ 297 }; 298 struct mutex { int i; }; 299 struct kernel_param { int i; }; 300 301 struct cdev { 302 int owner; 303 dev_t dev; 304 }; 305 #define cdev_init(...) do { } while (0) 306 #define cdev_add(...) 0 307 #define cdev_del(...) do { } while (0) 308 309 #define MAX_ERRNO 4095 310 311 #define prandom_u32(...) 0 312 313 typedef struct { 314 uid_t val; 315 } kuid_t; 316 317 typedef struct { 318 gid_t val; 319 } kgid_t; 320 321 /* from include/linux/types.h */ 322 323 typedef int atomic_t; 324 /** 325 * struct callback_head - callback structure for use with RCU and task_work 326 * @next: next update requests in a list 327 * @func: actual update function to call after the grace period. 328 */ 329 struct callback_head { 330 struct callback_head *next; 331 void (*func)(struct callback_head *head); 332 }; 333 #define rcu_head callback_head 334 enum writeback_sync_modes { 335 WB_SYNC_NONE, /* Don't wait on anything */ 336 WB_SYNC_ALL, /* Wait on every mapping */ 337 }; 338 339 /* from include/linux/writeback.h */ 340 /* 341 * A control structure which tells the writeback code what to do. These are 342 * always on the stack, and hence need no locking. They are always initialised 343 * in a manner such that unspecified fields are set to zero. 344 */ 345 struct writeback_control { 346 long nr_to_write; /* Write this many pages, and decrement 347 this for each page written */ 348 long pages_skipped; /* Pages which were not written */ 349 350 /* 351 * For a_ops->writepages(): if start or end are non-zero then this is 352 * a hint that the filesystem need only write out the pages inside that 353 * byterange. The byte at `end' is included in the writeout request. 354 */ 355 loff_t range_start; 356 loff_t range_end; 357 358 enum writeback_sync_modes sync_mode; 359 360 unsigned for_kupdate:1; /* A kupdate writeback */ 361 unsigned for_background:1; /* A background writeback */ 362 unsigned tagged_writepages:1; /* tag-and-write to avoid livelock */ 363 unsigned for_reclaim:1; /* Invoked from the page allocator */ 364 unsigned range_cyclic:1; /* range_start is cyclic */ 365 unsigned for_sync:1; /* sync(2) WB_SYNC_ALL writeback */ 366 }; 367 368 void *kmemdup(const void *src, size_t len, gfp_t gfp); 369 370 typedef int irqreturn_t; 371 372 struct timer_list {}; 373 struct notifier_block {}; 374 375 typedef unsigned long dmaaddr_t; 376 377 #define cpu_relax() do {} while (0) 378 379 #define pm_runtime_get_sync(dev) do {} while (0) 380 #define pm_runtime_put(dev) do {} while (0) 381 #define pm_runtime_put_sync(dev) do {} while (0) 382 #define pm_runtime_use_autosuspend(dev) do {} while (0) 383 #define pm_runtime_set_autosuspend_delay(dev, delay) do {} while (0) 384 #define pm_runtime_enable(dev) do {} while (0) 385 386 #define IRQ_NONE 0 387 #define IRQ_HANDLED 1 388 389 #define dev_set_drvdata(dev, data) do {} while (0) 390 391 #define enable_irq(...) 392 #define disable_irq(...) 393 #define disable_irq_wake(irq) do {} while (0) 394 #define enable_irq_wake(irq) -EINVAL 395 #define free_irq(irq, data) do {} while (0) 396 #define request_irq(nr, f, flags, nm, data) 0 397 398 #endif 399