diff options
Diffstat (limited to 'drivers/sound/lowlevel/awe_compat.h')
| -rw-r--r-- | drivers/sound/lowlevel/awe_compat.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/drivers/sound/lowlevel/awe_compat.h b/drivers/sound/lowlevel/awe_compat.h new file mode 100644 index 000000000..d0c34a1fa --- /dev/null +++ b/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 + |