patch-2.1.63 linux/drivers/sound/lowlevel/awe_compat.h

• Lines: 191
• Date: Tue Oct 28 02:10:50 1997
• Orig file: v2.1.62/linux/drivers/sound/lowlevel/awe_compat.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.62/linux/drivers/sound/lowlevel/awe_compat.h linux/drivers/sound/lowlevel/awe_compat.h
@@ -0,0 +1,190 @@
+/*----------------------------------------------------------------
+ * compatibility macros for AWE32 driver
+ *----------------------------------------------------------------*/
+
+/* redefine following macros */
+#undef IOCTL_IN
+#undef IOCTL_OUT
+#undef OUTW
+#undef COPY_FROM_USER
+#undef COPY_TO_USER
+#undef GET_BYTE_FROM_USER
+#undef GET_SHORT_FROM_USER
+#undef IOCTL_TO_USER
+  
+#ifdef linux
+
+/*================================================================
+ * Linux macros
+ *================================================================*/
+
+/* use inline prefix */
+#define INLINE	inline
+
+/*----------------------------------------------------------------
+ * memory management for linux
+ *----------------------------------------------------------------*/
+
+#ifdef AWE_OBSOLETE_VOXWARE
+/* old type linux system */
+
+/* i/o requests; nothing */
+#define awe_check_port()	0	/* always false */
+#define awe_request_region()	/* nothing */
+#define awe_release_region()	/* nothing */
+
+static int _mem_start;  /* memory pointer for permanent buffers */
+
+#define my_malloc_init(memptr)	_mem_start = (memptr)
+#define my_malloc_memptr()	_mem_start
+#define my_free(ptr)	/* do nothing */
+#define my_realloc(buf,oldsize,size)	NULL	/* no realloc */
+
+static void *my_malloc(int size)
+{
+	char *ptr;
+	PERMANENT_MALLOC(ptr, char*, size, _mem_start);
+	return (void*)ptr;
+}
+
+/* allocate buffer only once */
+#define INIT_TABLE(buffer,index,nums,type) {\
+buffer = my_malloc(sizeof(type) * (nums)); index = (nums);\
+}
+
+#else
+
+#define AWE_DYNAMIC_BUFFER
+
+#define my_malloc_init(ptr)	/* nothing */
+#define my_malloc_memptr()	0
+#define my_malloc(size)		vmalloc(size)
+#define my_free(ptr)		if (ptr) {vfree(ptr);}
+
+static void *my_realloc(void *buf, int oldsize, int size)
+{
+	void *ptr;
+	if ((ptr = vmalloc(size)) == NULL)
+		return NULL;
+	memcpy(ptr, buf, ((oldsize < size) ? oldsize : size) );
+	vfree(buf);
+	return ptr;
+}
+
+/* do not allocate buffer at beginning */
+#define INIT_TABLE(buffer,index,nums,type) {buffer=NULL; index=0;}
+
+/* old type macro */
+#define RET_ERROR(err)		-err
+
+#endif
+
+/*----------------------------------------------------------------
+ * i/o interfaces for linux
+ *----------------------------------------------------------------*/
+
+#define OUTW(data,addr)		outw(data, addr)
+
+#ifdef AWE_NEW_KERNEL_INTERFACE
+#define COPY_FROM_USER(target,source,offs,count) \
+	copy_from_user(target, (source)+(offs), count)
+#define GET_BYTE_FROM_USER(target,addr,offs) \
+	get_user(target, (unsigned char*)&((addr)[offs]))
+#define GET_SHORT_FROM_USER(target,addr,offs) \
+	get_user(target, (unsigned short*)&((addr)[offs]))
+#ifdef AWE_OSS38
+#define IOCTL_TO_USER(target,offs,source,count) \
+	memcpy(target, (source)+(offs), count)
+#define IO_WRITE_CHECK(cmd)	(_SIOC_DIR(cmd) & _IOC_WRITE)
+#else
+#define IOCTL_TO_USER(target,offs,source,count) \
+	copy_to_user(target, (source)+(offs), count)
+#define IO_WRITE_CHECK(cmd)	(_IOC_DIR(cmd) & _IOC_WRITE)
+#endif /* AWE_OSS38 */
+#define COPY_TO_USER	IOCTL_TO_USER
+#define IOCTL_IN(arg)	(*(int*)(arg))
+#define IOCTL_OUT(arg,val) (*(int*)(arg) = (val))
+
+#else /* old type i/o */
+#define COPY_FROM_USER(target,source,offs,count) \
+	memcpy_fromfs(target, (source)+(offs), (count))
+#define GET_BYTE_FROM_USER(target,addr,offs) \
+	*((char  *)&(target)) = get_fs_byte((addr)+(offs))
+#define GET_SHORT_FROM_USER(target,addr,offs) \
+	*((short *)&(target)) = get_fs_word((addr)+(offs))
+#define IOCTL_TO_USER(target,offs,source,count) \
+	memcpy_tofs(target, (source)+(offs), (count))
+#define COPY_TO_USER	IOCTL_TO_USER
+#define IO_WRITE_CHECK(cmd)	(cmd & IOC_IN)
+#define IOCTL_IN(arg)		get_fs_long((long *)(arg))
+#define IOCTL_OUT(arg,ret)	snd_ioctl_return((int *)arg, ret)
+
+#endif /* AWE_NEW_KERNEL_INTERFACE */
+
+#define BZERO(target,len)	memset(target, 0, len)
+#define MEMCPY(dst,src,len)	memcpy(dst, src, len)
+
+
+#elif defined(__FreeBSD__)
+
+/*================================================================
+ * FreeBSD macros
+ *================================================================*/
+
+/* inline is not checked yet.. maybe it'll work */
+#define INLINE	/*inline*/
+
+/*----------------------------------------------------------------
+ * memory management for freebsd
+ *----------------------------------------------------------------*/
+
+/* i/o requests; nothing */
+#define awe_check_port()	0	/* always false */
+#define awe_request_region()	/* nothing */
+#define awe_release_region()	/* nothing */
+
+#define AWE_DYNAMIC_BUFFER
+
+#define my_malloc_init(ptr)	/* nothing */
+#define my_malloc_memptr()	0
+#define my_malloc(size)		malloc(size, M_TEMP, M_WAITOK)
+#define my_free(ptr)		if (ptr) {free(ptr, M_TEMP);}
+
+#define INIT_TABLE(buffer,index,nums,type) {buffer=NULL; index=0;}
+
+/* it should be realloc? */
+static void *my_realloc(void *buf, int oldsize, int size)
+{
+	void *ptr;
+	if ((ptr = my_malloc(size)) == NULL)
+		return NULL;
+	memcpy(ptr, buf, ((oldsize < size) ? oldsize : size) );
+	my_free(buf);
+	return ptr;
+}
+
+/*----------------------------------------------------------------
+ * i/o interfaces for freebsd
+ *----------------------------------------------------------------*/
+
+/* according to linux rule; the arguments are swapped */
+#define OUTW(data,addr)		outw(addr, data)
+
+#define COPY_FROM_USER(target,source,offs,count) \
+	uiomove(((caddr_t)(target)),(count),((struct uio *)(source)))
+#define COPY_TO_USER(target,source,offs,count) \
+	uiomove(((caddr_t)(source)),(count),((struct uio *)(target)))
+#define GET_BYTE_FROM_USER(target,addr,offs) \
+	uiomove(((char*)&(target)), 1, ((struct uio *)(addr)))
+#define GET_SHORT_FROM_USER(target,addr,offs) \
+	uiomove(((char*)&(target)), 2, ((struct uio *)(addr)))
+#define IOCTL_TO_USER(target,offs,source,count) \
+	memcpy(&((target)[offs]), (source), (count))
+#define IO_WRITE_CHECK(cmd)	(cmd & IOC_IN)
+#define IOCTL_IN(arg)		(*(int*)(arg))
+#define IOCTL_OUT(arg,val)	(*(int*)(arg) = (val))
+#define BZERO(target,len)	bzero((caddr_t)target, len)
+#define MEMCPY(dst,src,len)	bcopy((caddr_t)src, (caddr_t)dst, len)
+
+#endif
+