include/linux/compat.h

   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