wlan_compat.h

uClinux2.6上兼容PRISM2.0芯片组的USB设备驱动程序.

/* src/include/wlan/wlan_compat.h
*
* Types and macros to aid in portability
*
* Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.
* --------------------------------------------------------------------
*
* linux-wlan
*
*   The contents of this file are subject to the Mozilla Public
*   License Version 1.1 (the "License"); you may not use this file
*   except in compliance with the License. You may obtain a copy of
*   the License at http://www.mozilla.org/MPL/
*
*   Software distributed under the License is distributed on an "AS
*   IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
*   implied. See the License for the specific language governing
*   rights and limitations under the License.
*
*   Alternatively, the contents of this file may be used under the
*   terms of the GNU Public License version 2 (the "GPL"), in which
*   case the provisions of the GPL are applicable instead of the
*   above.  If you wish to allow the use of your version of this file
*   only under the terms of the GPL and not to allow others to use
*   your version of this file under the MPL, indicate your decision
*   by deleting the provisions above and replace them with the notice
*   and other provisions required by the GPL.  If you do not delete
*   the provisions above, a recipient may use your version of this
*   file under either the MPL or the GPL.
*
* --------------------------------------------------------------------
*
* Inquiries regarding the linux-wlan Open Source project can be
* made directly to:
*
* AbsoluteValue Systems Inc.
* [e-mail]
* http://www.linux-wlan.com
*
* --------------------------------------------------------------------
*
* Portions of the development of this software were funded by 
* Intersil Corporation as part of PRISM(R) chipset product development.
*
* --------------------------------------------------------------------
*/

#ifndef _WLAN_COMPAT_H
#define _WLAN_COMPAT_H

/*=============================================================*/
/*------ Establish Platform Identity --------------------------*/
/*=============================================================*/
/* Key macros: */
/* WLAN_CPU_FAMILY */
	#define WLAN_Ix86			1
	#define WLAN_PPC			2
	#define WLAN_Ix96			3
	#define WLAN_ARM			4
	#define WLAN_ALPHA			5
	#define WLAN_MIPS			6
	#define WLAN_HPPA			7
	#define WLAN_SPARC			8
	#define WLAN_SH    			9
	#define WLAN_x86_64                     10
/* WLAN_SYSARCH */
	#define WLAN_PCAT			1
	#define WLAN_MBX			2
	#define WLAN_RPX			3
	#define WLAN_LWARCH			4
	#define WLAN_PMAC			5
	#define WLAN_SKIFF			6
	#define WLAN_BITSY			7
	#define WLAN_ALPHAARCH			7
	#define WLAN_MIPSARCH			9
	#define WLAN_HPPAARCH			10
	#define WLAN_SPARCARCH			11
	#define WLAN_SHARCH   			12

/* Note: the PLX HOSTIF above refers to some vendors implementations for */
/*       PCI.  It's a PLX chip that is a PCI to PCMCIA adapter, but it   */
/*       isn't a real PCMCIA host interface adapter providing all the    */
/*       card&socket services.                                           */

#ifndef __arm__
#define __arm__
#endif



#if (defined(CONFIG_PPC) || defined(CONFIG_8xx) || defined(__powerpc__))
#ifndef __ppc__
#define __ppc__
#endif
#endif

#if defined(__KERNEL__)
#if defined(__x86_64__)
	#define WLAN_CPU_FAMILY		WLAN_x86_64
	#define WLAN_SYSARCH		WLAN_PCAT
#elif defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__)
	#define WLAN_CPU_FAMILY		WLAN_Ix86
	#define WLAN_SYSARCH		WLAN_PCAT
#elif defined(__ppc__)
	#define WLAN_CPU_FAMILY		WLAN_PPC
	#if defined(CONFIG_MBX)
		#define WLAN_SYSARCH	WLAN_MBX
	#elif defined(CONFIG_RPXLITE)
		#define WLAN_SYSARCH	WLAN_RPX
	#elif defined(CONFIG_RPXCLASSIC)
		#define WLAN_SYSARCH	WLAN_RPX
	#else
		#define WLAN_SYSARCH	WLAN_PMAC
	#endif
#elif defined(__arm__)
	#define WLAN_CPU_FAMILY		WLAN_ARM
	#define WLAN_SYSARCH		WLAN_SKIFF
#elif defined(__alpha__)
	#define WLAN_CPU_FAMILY		WLAN_ALPHA
	#define WLAN_SYSARCH		WLAN_ALPHAARCH
#elif defined(__mips__)
	#define WLAN_CPU_FAMILY		WLAN_MIPS
	#define WLAN_SYSARCH		WLAN_MIPSARCH
#elif defined(__hppa__)
	#define WLAN_CPU_FAMILY		WLAN_HPPA
	#define WLAN_SYSARCH		WLAN_HPPAARCH
#elif defined(__sparc__)
        #define WLAN_CPU_FAMILY         WLAN_SPARC
        #define WLAN_SYSARCH            WLAN_SPARC
#elif defined(__sh__)
        #define WLAN_CPU_FAMILY         WLAN_SH    
        #define WLAN_SYSARCH            WLAN_SHARCH
        #ifndef __LITTLE_ENDIAN__
        #define __LITTLE_ENDIAN__
        #endif
#else
	#error "No CPU identified!"
#endif
#endif /* __KERNEL__ */

/*
   Some big endian machines implicitly do all I/O in little endian mode.

   In particular:
          Linux/PPC on PowerMacs (PCI)
	  Arm/Intel Xscale (PCI)

   This may also affect PLX boards and other BE &| PPC platforms; 
   as new ones are discovered, add them below. 
*/

#if ((WLAN_HOSTIF == WLAN_PCI) || (WLAN_HOSTIF == WLAN_PLX))
#if ((WLAN_SYSARCH == WLAN_SKIFF) || (WLAN_SYSARCH == WLAN_PMAC) || (WLAN_SYSARCH == WLAN_SPARC))
#define REVERSE_ENDIAN
#endif
#endif

/*=============================================================*/
/*------ Bit settings -----------------------------------------*/
/*=============================================================*/

#define BIT0	0x00000001
#define BIT1	0x00000002
#define BIT2	0x00000004
#define BIT3	0x00000008
#define BIT4	0x00000010
#define BIT5	0x00000020
#define BIT6	0x00000040
#define BIT7	0x00000080
#define BIT8	0x00000100
#define BIT9	0x00000200
#define BIT10	0x00000400
#define BIT11	0x00000800
#define BIT12	0x00001000
#define BIT13	0x00002000
#define BIT14	0x00004000
#define BIT15	0x00008000
#define BIT16	0x00010000
#define BIT17	0x00020000
#define BIT18	0x00040000
#define BIT19	0x00080000
#define BIT20	0x00100000
#define BIT21	0x00200000
#define BIT22	0x00400000
#define BIT23	0x00800000
#define BIT24	0x01000000
#define BIT25	0x02000000
#define BIT26	0x04000000
#define BIT27	0x08000000
#define BIT28	0x10000000
#define BIT29	0x20000000
#define BIT30	0x40000000
#define BIT31	0x80000000

#include <linux/types.h>

typedef u_int8_t	UINT8;
typedef u_int16_t	UINT16;
typedef u_int32_t	UINT32;

typedef int8_t		INT8;
typedef int16_t		INT16;
typedef int32_t		INT32;

typedef unsigned int    UINT;
typedef signed int      INT;

typedef u_int64_t	UINT64;
typedef int64_t		INT64;

#define UINT8_MAX	(0xffUL)
#define UINT16_MAX	(0xffffUL)
#define UINT32_MAX	(0xffffffffUL)

#define INT8_MAX	(0x7fL)
#define INT16_MAX	(0x7fffL)
#define INT32_MAX	(0x7fffffffL)

/*=============================================================*/
/*------ Compiler Portability Macros --------------------------*/
/*=============================================================*/
#define __WLAN_ATTRIB_PACK__		__attribute__ ((packed))

/*=============================================================*/
/*------ OS Portability Macros --------------------------------*/
/*=============================================================*/

#ifndef WLAN_DBVAR
#define WLAN_DBVAR	wlan_debug
#endif

#ifndef KERNEL_VERSION
#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
#endif

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
#  if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,8))
#    include <linux/hardirq.h>
#  else 
#    include <asm/hardirq.h>
#  endif
#elif defined(__KERNEL__)
#  define PREEMPT_MASK  (0x000000FFUL)
#  define preempt_count() (0UL)
#endif

#define WLAN_LOG_ERROR(x,args...) printk(KERN_ERR "%s: " x , __FUNCTION__ , ##args);

#define WLAN_LOG_WARNING(x,args...) printk(KERN_WARNING "%s: " x , __FUNCTION__ , ##args);

#define WLAN_LOG_NOTICE(x,args...) printk(KERN_NOTICE "%s: " x , __FUNCTION__ , ##args);

#define WLAN_LOG_INFO(args... ) printk(KERN_INFO args)

#if defined(WLAN_INCLUDE_DEBUG)
	#define WLAN_ASSERT(c) if ((!(c)) && WLAN_DBVAR >= 1) { \
		WLAN_LOG_DEBUG(1, "Assertion failure!\n"); }
	#define WLAN_HEX_DUMP( l, x, p, n)	if( WLAN_DBVAR >= (l) ){ \
		int __i__; \
		printk(KERN_DEBUG x ":"); \
		for( __i__=0; __i__ < (n); __i__++) \
			printk( " %02x", ((UINT8*)(p))[__i__]); \
		printk("\n"); }
	#define DBFENTER { if ( WLAN_DBVAR >= 5 ){ WLAN_LOG_DEBUG(3,"---->\n"); } }
	#define DBFEXIT  { if ( WLAN_DBVAR >= 5 ){ WLAN_LOG_DEBUG(3,"<----\n"); } }

	#define WLAN_LOG_DEBUG(l,x,args...) if ( WLAN_DBVAR >= (l)) printk(KERN_DEBUG "%s(%lu): " x ,  __FUNCTION__, (preempt_count() & PREEMPT_MASK), ##args );
#else
	#define WLAN_ASSERT(c) 
	#define WLAN_HEX_DUMP( l, s, p, n)
	#define DBFENTER 
	#define DBFEXIT 

	#define WLAN_LOG_DEBUG(l, s, args...)
#endif

#ifdef CONFIG_SMP
#define __SMP__			1
#endif	

#if defined(__KERNEL__)

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,7))
#  define del_singleshot_timer_sync(a)  del_timer_sync(a)
#endif

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,17))
#define CONFIG_NETLINK		1
#endif

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0))
#define kfree_s(a, b)	kfree((a))
#endif

#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,2,18))
#ifndef init_waitqueue_head
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,0,16))
#define init_waitqueue_head(p)  (*(p) = NULL)
#else
#define init_waitqueue_head(p)  init_waitqueue(p)
#endif
typedef struct wait_queue *wait_queue_head_t;
typedef struct wait_queue wait_queue_t;
#define set_current_state(b)  { current->state = (b); mb(); }
#define init_waitqueue_entry(a, b) { (a)->task = current; }
#endif
#endif

#ifndef wait_event_interruptible_timeout
// retval == 0; signal met; we're good.
// retval < 0; interrupted by signal.
// retval > 0; timed out.

#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0))  // fixme?

#define __wait_event_interruptible_timeout(wq, condition, ret)            \
do {                                                                      \
          wait_queue_t __wait;                                            \
          init_waitqueue_entry(&__wait, current);                         \
	                                                                  \
          add_wait_queue(&wq, &__wait);                                   \
          for (;;) {                                                      \
                  set_current_state(TASK_INTERRUPTIBLE);                  \
                  if (condition)                                          \
                          break;                                          \
                  if (!signal_pending(current)) {                         \
                          ret = schedule_timeout(ret)    ;                \
                          if (!ret)                                       \
                                 break;                                   \
                          continue;                                       \
                  }                                                       \
                  ret = -ERESTARTSYS;                                     \
                  break;                                                  \
          }                                                               \
          set_current_state(TASK_RUNNING);                                \
          remove_wait_queue(&wq, &__wait);                                \
} while (0)

#else // 2.2


#define __wait_event_interruptible_timeout(wq, condition, ret)          \
do {                                                                    \
        struct wait_queue __wait;                                       \
                                                                        \
        __wait.task = current;                                          \
        add_wait_queue(&wq, &__wait);                                   \
        for (;;) {                                                      \
                current->state = TASK_INTERRUPTIBLE;                    \
                if (condition)                                          \
                        break;                                          \
                if (!signal_pending(current)) {                         \
                        ret = schedule_timeout(ret);                    \
                        if (!ret)                                       \
                               break;                                   \
                        continue;                                       \
                }                                                       \
                ret = -ERESTARTSYS;                                     \
                break;                                                  \
        }                                                               \
        current->state = TASK_RUNNING;                                  \
        remove_wait_queue(&wq, &__wait);                                \
} while (0)

#endif  // version >= 2.4

#define wait_event_interruptible_timeout(wq, condition, timeout)	  \