diff --git a/libion/Android.mk b/libion/Android.mk
index 5121fee..42e6f07 100644
--- a/libion/Android.mk
+++ b/libion/Android.mk
@@ -5,11 +5,14 @@
 LOCAL_MODULE := libion
 LOCAL_MODULE_TAGS := optional
 LOCAL_SHARED_LIBRARIES := liblog
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/include $(LOCAL_PATH)/kernel-headers
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)/include $(LOCAL_PATH)/kernel-headers
 include $(BUILD_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)
 LOCAL_SRC_FILES := ion.c ion_test.c
 LOCAL_MODULE := iontest
 LOCAL_MODULE_TAGS := optional tests
+LOCAL_C_INCLUDES := $(LOCAL_PATH)/include $(LOCAL_PATH)/kernel-headers
 LOCAL_SHARED_LIBRARIES := liblog
 include $(BUILD_EXECUTABLE)
diff --git a/include/ion/ion.h b/libion/include/ion/ion.h
similarity index 90%
rename from include/ion/ion.h
rename to libion/include/ion/ion.h
index 0451b5a..f47793d 100644
--- a/include/ion/ion.h
+++ b/libion/include/ion/ion.h
@@ -21,6 +21,7 @@
 #ifndef __SYS_CORE_ION_H
 #define __SYS_CORE_ION_H
 
+#include <sys/types.h>
 #include <linux/ion.h>
 
 __BEGIN_DECLS
@@ -30,9 +31,9 @@
 int ion_open();
 int ion_close(int fd);
 int ion_alloc(int fd, size_t len, size_t align, unsigned int heap_mask,
-	      unsigned int flags, ion_user_handle_t *handle);
+              unsigned int flags, ion_user_handle_t *handle);
 int ion_alloc_fd(int fd, size_t len, size_t align, unsigned int heap_mask,
-		 unsigned int flags, int *handle_fd);
+              unsigned int flags, int *handle_fd);
 int ion_sync_fd(int fd, int handle_fd);
 int ion_free(int fd, ion_user_handle_t handle);
 int ion_map(int fd, ion_user_handle_t handle, size_t length, int prot,
diff --git a/libion/ion.c b/libion/ion.c
index 5fd35fe..80bdc2a 100644
--- a/libion/ion.c
+++ b/libion/ion.c
@@ -32,119 +32,139 @@
 
 int ion_open()
 {
-        int fd = open("/dev/ion", O_RDWR);
-        if (fd < 0)
-                ALOGE("open /dev/ion failed!\n");
-        return fd;
+    int fd = open("/dev/ion", O_RDWR);
+    if (fd < 0)
+        ALOGE("open /dev/ion failed!\n");
+    return fd;
 }
 
 int ion_close(int fd)
 {
-        return close(fd);
+    int ret = close(fd);
+    if (ret < 0)
+        return -errno;
+    return ret;
 }
 
 static int ion_ioctl(int fd, int req, void *arg)
 {
-        int ret = ioctl(fd, req, arg);
-        if (ret < 0) {
-                ALOGE("ioctl %x failed with code %d: %s\n", req,
-                       ret, strerror(errno));
-                return -errno;
-        }
-        return ret;
+    int ret = ioctl(fd, req, arg);
+    if (ret < 0) {
+        ALOGE("ioctl %x failed with code %d: %s\n", req,
+              ret, strerror(errno));
+        return -errno;
+    }
+    return ret;
 }
 
 int ion_alloc(int fd, size_t len, size_t align, unsigned int heap_mask,
-	      unsigned int flags, ion_user_handle_t *handle)
+              unsigned int flags, ion_user_handle_t *handle)
 {
-        int ret;
-        struct ion_allocation_data data = {
-                .len = len,
-                .align = align,
-		.heap_id_mask = heap_mask,
-                .flags = flags,
-        };
+    int ret;
+    struct ion_allocation_data data = {
+        .len = len,
+        .align = align,
+        .heap_id_mask = heap_mask,
+        .flags = flags,
+    };
 
-        ret = ion_ioctl(fd, ION_IOC_ALLOC, &data);
-        if (ret < 0)
-                return ret;
-        *handle = data.handle;
+    if (handle == NULL)
+        return -EINVAL;
+
+    ret = ion_ioctl(fd, ION_IOC_ALLOC, &data);
+    if (ret < 0)
         return ret;
+    *handle = data.handle;
+    return ret;
 }
 
 int ion_free(int fd, ion_user_handle_t handle)
 {
-        struct ion_handle_data data = {
-                .handle = handle,
-        };
-        return ion_ioctl(fd, ION_IOC_FREE, &data);
+    struct ion_handle_data data = {
+        .handle = handle,
+    };
+    return ion_ioctl(fd, ION_IOC_FREE, &data);
 }
 
 int ion_map(int fd, ion_user_handle_t handle, size_t length, int prot,
             int flags, off_t offset, unsigned char **ptr, int *map_fd)
 {
-        struct ion_fd_data data = {
-                .handle = handle,
-        };
+    int ret;
+    struct ion_fd_data data = {
+        .handle = handle,
+    };
 
-        int ret = ion_ioctl(fd, ION_IOC_MAP, &data);
-        if (ret < 0)
-                return ret;
-        *map_fd = data.fd;
-        if (*map_fd < 0) {
-                ALOGE("map ioctl returned negative fd\n");
-                return -EINVAL;
-        }
-        *ptr = mmap(NULL, length, prot, flags, *map_fd, offset);
-        if (*ptr == MAP_FAILED) {
-                ALOGE("mmap failed: %s\n", strerror(errno));
-                return -errno;
-        }
+    if (map_fd == NULL)
+        return -EINVAL;
+    if (ptr == NULL)
+        return -EINVAL;
+
+    ret = ion_ioctl(fd, ION_IOC_MAP, &data);
+    if (ret < 0)
         return ret;
+    *map_fd = data.fd;
+    if (*map_fd < 0) {
+        ALOGE("map ioctl returned negative fd\n");
+        return -EINVAL;
+    }
+    *ptr = mmap(NULL, length, prot, flags, *map_fd, offset);
+    if (*ptr == MAP_FAILED) {
+        ALOGE("mmap failed: %s\n", strerror(errno));
+        return -errno;
+    }
+    return ret;
 }
 
 int ion_share(int fd, ion_user_handle_t handle, int *share_fd)
 {
-        int map_fd;
-        struct ion_fd_data data = {
-                .handle = handle,
-        };
+    int map_fd;
+    int ret;
+    struct ion_fd_data data = {
+        .handle = handle,
+    };
 
-        int ret = ion_ioctl(fd, ION_IOC_SHARE, &data);
-        if (ret < 0)
-                return ret;
-        *share_fd = data.fd;
-        if (*share_fd < 0) {
-                ALOGE("share ioctl returned negative fd\n");
-                return -EINVAL;
-        }
+    if (share_fd == NULL)
+        return -EINVAL;
+
+    ret = ion_ioctl(fd, ION_IOC_SHARE, &data);
+    if (ret < 0)
         return ret;
+    *share_fd = data.fd;
+    if (*share_fd < 0) {
+        ALOGE("share ioctl returned negative fd\n");
+        return -EINVAL;
+    }
+    return ret;
 }
 
 int ion_alloc_fd(int fd, size_t len, size_t align, unsigned int heap_mask,
-		 unsigned int flags, int *handle_fd) {
-	ion_user_handle_t handle;
-	int ret;
+                 unsigned int flags, int *handle_fd) {
+    ion_user_handle_t handle;
+    int ret;
 
-	ret = ion_alloc(fd, len, align, heap_mask, flags, &handle);
-	if (ret < 0)
-		return ret;
-	ret = ion_share(fd, handle, handle_fd);
-	ion_free(fd, handle);
-	return ret;
+    ret = ion_alloc(fd, len, align, heap_mask, flags, &handle);
+    if (ret < 0)
+        return ret;
+    ret = ion_share(fd, handle, handle_fd);
+    ion_free(fd, handle);
+    return ret;
 }
 
 int ion_import(int fd, int share_fd, ion_user_handle_t *handle)
 {
-        struct ion_fd_data data = {
-                .fd = share_fd,
-        };
+    int ret;
+    struct ion_fd_data data = {
+        .fd = share_fd,
+    };
 
-        int ret = ion_ioctl(fd, ION_IOC_IMPORT, &data);
-        if (ret < 0)
-                return ret;
-        *handle = data.handle;
+    if (handle == NULL)
+        return -EINVAL;
+
+    ret = ion_ioctl(fd, ION_IOC_IMPORT, &data);
+    if (ret < 0)
         return ret;
+    *handle = data.handle;
+    return ret;
 }
 
 int ion_sync_fd(int fd, int handle_fd)
diff --git a/libion/ion_test.c b/libion/ion_test.c
index becae42..95e020a 100644
--- a/libion/ion_test.c
+++ b/libion/ion_test.c
@@ -24,254 +24,248 @@
 
 int _ion_alloc_test(int *fd, ion_user_handle_t *handle)
 {
-	int ret;
+    int ret;
 
-	*fd = ion_open();
-	if (*fd < 0)
-		return *fd;
+    *fd = ion_open();
+    if (*fd < 0)
+        return *fd;
 
-	ret = ion_alloc(*fd, len, align, heap_mask, alloc_flags, handle);
+    ret = ion_alloc(*fd, len, align, heap_mask, alloc_flags, handle);
 
-	if (ret)
-		printf("%s failed: %s\n", __func__, strerror(ret));
-	return ret;
+    if (ret)
+        printf("%s failed: %s\n", __func__, strerror(ret));
+    return ret;
 }
 
 void ion_alloc_test()
 {
-	int fd, ret;
-	ion_user_handle_t handle;
+    int fd, ret;
+    ion_user_handle_t handle;
 
-	if(_ion_alloc_test(&fd, &handle))
-			return;
+    if(_ion_alloc_test(&fd, &handle))
+        return;
 
-	ret = ion_free(fd, handle);
-	if (ret) {
-		printf("%s failed: %s %p\n", __func__, strerror(ret), handle);
-		return;
-	}
-	ion_close(fd);
-	printf("ion alloc test: passed\n");
+    ret = ion_free(fd, handle);
+    if (ret) {
+        printf("%s failed: %s %p\n", __func__, strerror(ret), handle);
+        return;
+    }
+    ion_close(fd);
+    printf("ion alloc test: passed\n");
 }
 
 void ion_map_test()
 {
-	int fd, map_fd, ret;
-	size_t i;
-	ion_user_handle_t handle;
-	unsigned char *ptr;
+    int fd, map_fd, ret;
+    size_t i;
+    ion_user_handle_t handle;
+    unsigned char *ptr;
 
-	if(_ion_alloc_test(&fd, &handle))
-		return;
+    if(_ion_alloc_test(&fd, &handle))
+        return;
 
-	ret = ion_map(fd, handle, len, prot, map_flags, 0, &ptr, &map_fd);
-	if (ret)
-		return;
+    ret = ion_map(fd, handle, len, prot, map_flags, 0, &ptr, &map_fd);
+    if (ret)
+        return;
 
-	for (i = 0; i < len; i++) {
-		ptr[i] = (unsigned char)i;
-	}
-	for (i = 0; i < len; i++)
-		if (ptr[i] != (unsigned char)i)
-			printf("%s failed wrote %zu read %d from mapped "
-			       "memory\n", __func__, i, ptr[i]);
-	/* clean up properly */
-	ret = ion_free(fd, handle);
-	ion_close(fd);
-	munmap(ptr, len);
-	close(map_fd);
+    for (i = 0; i < len; i++) {
+        ptr[i] = (unsigned char)i;
+    }
+    for (i = 0; i < len; i++)
+        if (ptr[i] != (unsigned char)i)
+            printf("%s failed wrote %zu read %d from mapped "
+                   "memory\n", __func__, i, ptr[i]);
+    /* clean up properly */
+    ret = ion_free(fd, handle);
+    ion_close(fd);
+    munmap(ptr, len);
+    close(map_fd);
 
-	_ion_alloc_test(&fd, &handle);
-	close(fd);
+    _ion_alloc_test(&fd, &handle);
+    close(fd);
 
 #if 0
-	munmap(ptr, len);
-	close(map_fd);
-	ion_close(fd);
+    munmap(ptr, len);
+    close(map_fd);
+    ion_close(fd);
 
-	_ion_alloc_test(len, align, flags, &fd, &handle);
-	close(map_fd);
-	ret = ion_map(fd, handle, len, prot, flags, 0, &ptr, &map_fd);
-	/* don't clean up */
+    _ion_alloc_test(len, align, flags, &fd, &handle);
+    close(map_fd);
+    ret = ion_map(fd, handle, len, prot, flags, 0, &ptr, &map_fd);
+    /* don't clean up */
 #endif
 }
 
 void ion_share_test()
 
 {
-	ion_user_handle_t handle;
-	int sd[2];
-	int num_fd = 1;
-	struct iovec count_vec = {
-		.iov_base = &num_fd,
-		.iov_len = sizeof num_fd,
-	};
-	char buf[CMSG_SPACE(sizeof(int))];
-	socketpair(AF_UNIX, SOCK_STREAM, 0, sd);
-	if (fork()) {
-		struct msghdr msg = {
-			.msg_control = buf,
-			.msg_controllen = sizeof buf,
-			.msg_iov = &count_vec,
-			.msg_iovlen = 1,
-		};
+    ion_user_handle_t handle;
+    int sd[2];
+    int num_fd = 1;
+    struct iovec count_vec = {
+        .iov_base = &num_fd,
+        .iov_len = sizeof num_fd,
+    };
+    char buf[CMSG_SPACE(sizeof(int))];
+    socketpair(AF_UNIX, SOCK_STREAM, 0, sd);
+    if (fork()) {
+        struct msghdr msg = {
+            .msg_control = buf,
+            .msg_controllen = sizeof buf,
+            .msg_iov = &count_vec,
+            .msg_iovlen = 1,
+        };
 
-		struct cmsghdr *cmsg;
-		int fd, share_fd, ret;
-		char *ptr;
-		/* parent */
-		if(_ion_alloc_test(&fd, &handle))
-			return;
-		ret = ion_share(fd, handle, &share_fd);
-		if (ret)
-			printf("share failed %s\n", strerror(errno));
-		ptr = mmap(NULL, len, prot, map_flags, share_fd, 0);
-		if (ptr == MAP_FAILED) {
-			return;
-		}
-		strcpy(ptr, "master");
-		cmsg = CMSG_FIRSTHDR(&msg);
-		cmsg->cmsg_level = SOL_SOCKET;
-		cmsg->cmsg_type = SCM_RIGHTS;
-		cmsg->cmsg_len = CMSG_LEN(sizeof(int));
-		*(int *)CMSG_DATA(cmsg) = share_fd;
-		/* send the fd */
-		printf("master? [%10s] should be [master]\n", ptr);
-		printf("master sending msg 1\n");
-		sendmsg(sd[0], &msg, 0);
-		if (recvmsg(sd[0], &msg, 0) < 0)
-			perror("master recv msg 2");
-		printf("master? [%10s] should be [child]\n", ptr);
+        struct cmsghdr *cmsg;
+        int fd, share_fd, ret;
+        char *ptr;
+        /* parent */
+        if(_ion_alloc_test(&fd, &handle))
+            return;
+        ret = ion_share(fd, handle, &share_fd);
+        if (ret)
+            printf("share failed %s\n", strerror(errno));
+        ptr = mmap(NULL, len, prot, map_flags, share_fd, 0);
+        if (ptr == MAP_FAILED) {
+            return;
+        }
+        strcpy(ptr, "master");
+        cmsg = CMSG_FIRSTHDR(&msg);
+        cmsg->cmsg_level = SOL_SOCKET;
+        cmsg->cmsg_type = SCM_RIGHTS;
+        cmsg->cmsg_len = CMSG_LEN(sizeof(int));
+        *(int *)CMSG_DATA(cmsg) = share_fd;
+        /* send the fd */
+        printf("master? [%10s] should be [master]\n", ptr);
+        printf("master sending msg 1\n");
+        sendmsg(sd[0], &msg, 0);
+        if (recvmsg(sd[0], &msg, 0) < 0)
+            perror("master recv msg 2");
+        printf("master? [%10s] should be [child]\n", ptr);
 
-		/* send ping */
-		sendmsg(sd[0], &msg, 0);
-		printf("master->master? [%10s]\n", ptr);
-		if (recvmsg(sd[0], &msg, 0) < 0)
-			perror("master recv 1");
-	} else {
-		struct msghdr msg;
-		struct cmsghdr *cmsg;
-		char* ptr;
-		int fd, recv_fd;
-		char* child_buf[100];
-		/* child */
-		struct iovec count_vec = {
-			.iov_base = child_buf,
-			.iov_len = sizeof child_buf,
-		};
+        /* send ping */
+        sendmsg(sd[0], &msg, 0);
+        printf("master->master? [%10s]\n", ptr);
+        if (recvmsg(sd[0], &msg, 0) < 0)
+            perror("master recv 1");
+    } else {
+        struct msghdr msg;
+        struct cmsghdr *cmsg;
+        char* ptr;
+        int fd, recv_fd;
+        char* child_buf[100];
+        /* child */
+        struct iovec count_vec = {
+            .iov_base = child_buf,
+            .iov_len = sizeof child_buf,
+        };
 
-		struct msghdr child_msg = {
-			.msg_control = buf,
-			.msg_controllen = sizeof buf,
-			.msg_iov = &count_vec,
-			.msg_iovlen = 1,
-		};
+        struct msghdr child_msg = {
+            .msg_control = buf,
+            .msg_controllen = sizeof buf,
+            .msg_iov = &count_vec,
+            .msg_iovlen = 1,
+        };
 
-		if (recvmsg(sd[1], &child_msg, 0) < 0)
-			perror("child recv msg 1");
-		cmsg = CMSG_FIRSTHDR(&child_msg);
-		if (cmsg == NULL) {
-			printf("no cmsg rcvd in child");
-			return;
-		}
-		recv_fd = *(int*)CMSG_DATA(cmsg);
-		if (recv_fd < 0) {
-			printf("could not get recv_fd from socket");
-			return;
-		}
-		printf("child %d\n", recv_fd);
-		fd = ion_open();
-		ptr = mmap(NULL, len, prot, map_flags, recv_fd, 0);
-		if (ptr == MAP_FAILED) {
-			return;
-		}
-		printf("child? [%10s] should be [master]\n", ptr);
-		strcpy(ptr, "child");
-		printf("child sending msg 2\n");
-		sendmsg(sd[1], &child_msg, 0);
-	}
+        if (recvmsg(sd[1], &child_msg, 0) < 0)
+            perror("child recv msg 1");
+        cmsg = CMSG_FIRSTHDR(&child_msg);
+        if (cmsg == NULL) {
+            printf("no cmsg rcvd in child");
+            return;
+        }
+        recv_fd = *(int*)CMSG_DATA(cmsg);
+        if (recv_fd < 0) {
+            printf("could not get recv_fd from socket");
+            return;
+        }
+        printf("child %d\n", recv_fd);
+        fd = ion_open();
+        ptr = mmap(NULL, len, prot, map_flags, recv_fd, 0);
+        if (ptr == MAP_FAILED) {
+            return;
+        }
+        printf("child? [%10s] should be [master]\n", ptr);
+        strcpy(ptr, "child");
+        printf("child sending msg 2\n");
+        sendmsg(sd[1], &child_msg, 0);
+    }
 }
 
 int main(int argc, char* argv[]) {
-	int c;
-	enum tests {
-		ALLOC_TEST = 0, MAP_TEST, SHARE_TEST,
-	};
+    int c;
+    enum tests {
+        ALLOC_TEST = 0, MAP_TEST, SHARE_TEST,
+    };
 
-	while (1) {
-		static struct option opts[] = {
-			{"alloc", no_argument, 0, 'a'},
-			{"alloc_flags", required_argument, 0, 'f'},
-			{"heap_mask", required_argument, 0, 'h'},
-			{"map", no_argument, 0, 'm'},
-			{"share", no_argument, 0, 's'},
-			{"len", required_argument, 0, 'l'},
-			{"align", required_argument, 0, 'g'},
-			{"map_flags", required_argument, 0, 'z'},
-			{"prot", required_argument, 0, 'p'},
-		};
-		int i = 0;
-		c = getopt_long(argc, argv, "af:h:l:mr:st", opts, &i);
-		if (c == -1)
-			break;
+    while (1) {
+        static struct option opts[] = {
+            {"alloc", no_argument, 0, 'a'},
+            {"alloc_flags", required_argument, 0, 'f'},
+            {"heap_mask", required_argument, 0, 'h'},
+            {"map", no_argument, 0, 'm'},
+            {"share", no_argument, 0, 's'},
+            {"len", required_argument, 0, 'l'},
+            {"align", required_argument, 0, 'g'},
+            {"map_flags", required_argument, 0, 'z'},
+            {"prot", required_argument, 0, 'p'},
+        };
+        int i = 0;
+        c = getopt_long(argc, argv, "af:h:l:mr:st", opts, &i);
+        if (c == -1)
+            break;
 
-		switch (c) {
-		case 'l':
-			len = atol(optarg);
-			break;
-		case 'g':
-			align = atol(optarg);
-			break;
-		case 'z':
-			map_flags = 0;
-			map_flags |= strstr(optarg, "PROT_EXEC") ?
-				PROT_EXEC : 0;
-			map_flags |= strstr(optarg, "PROT_READ") ?
-				PROT_READ: 0;
-			map_flags |= strstr(optarg, "PROT_WRITE") ?
-				PROT_WRITE: 0;
-			map_flags |= strstr(optarg, "PROT_NONE") ?
-				PROT_NONE: 0;
-			break;
-		case 'p':
-			prot = 0;
-			prot |= strstr(optarg, "MAP_PRIVATE") ?
-				MAP_PRIVATE	 : 0;
-			prot |= strstr(optarg, "MAP_SHARED") ?
-				MAP_PRIVATE	 : 0;
-			break;
-		case 'f':
-			alloc_flags = atol(optarg);
-			break;
-		case 'h':
-			heap_mask = atol(optarg);
-			break;
-		case 'a':
-			test = ALLOC_TEST;
-			break;
-		case 'm':
-			test = MAP_TEST;
-			break;
-		case 's':
-			test = SHARE_TEST;
-			break;
-		}
-	}
-	printf("test %d, len %zu, align %zu, map_flags %d, prot %d, heap_mask %d,"
-	       " alloc_flags %d\n", test, len, align, map_flags, prot,
-	       heap_mask, alloc_flags);
-	switch (test) {
-		case ALLOC_TEST:
-			ion_alloc_test();
-			break;
-		case MAP_TEST:
-			ion_map_test();
-			break;
-		case SHARE_TEST:
-			ion_share_test();
-			break;
-		default:
-			printf("must specify a test (alloc, map, share)\n");
-	}
-	return 0;
+        switch (c) {
+        case 'l':
+            len = atol(optarg);
+            break;
+        case 'g':
+            align = atol(optarg);
+            break;
+        case 'z':
+            map_flags = 0;
+            map_flags |= strstr(optarg, "PROT_EXEC") ? PROT_EXEC : 0;
+            map_flags |= strstr(optarg, "PROT_READ") ? PROT_READ: 0;
+            map_flags |= strstr(optarg, "PROT_WRITE") ? PROT_WRITE: 0;
+            map_flags |= strstr(optarg, "PROT_NONE") ? PROT_NONE: 0;
+            break;
+        case 'p':
+            prot = 0;
+            prot |= strstr(optarg, "MAP_PRIVATE") ? MAP_PRIVATE : 0;
+            prot |= strstr(optarg, "MAP_SHARED") ? MAP_PRIVATE : 0;
+            break;
+        case 'f':
+            alloc_flags = atol(optarg);
+            break;
+        case 'h':
+            heap_mask = atol(optarg);
+            break;
+        case 'a':
+            test = ALLOC_TEST;
+            break;
+        case 'm':
+            test = MAP_TEST;
+            break;
+        case 's':
+            test = SHARE_TEST;
+            break;
+        }
+    }
+    printf("test %d, len %zu, align %zu, map_flags %d, prot %d, heap_mask %d,"
+           " alloc_flags %d\n", test, len, align, map_flags, prot,
+           heap_mask, alloc_flags);
+    switch (test) {
+        case ALLOC_TEST:
+            ion_alloc_test();
+            break;
+        case MAP_TEST:
+            ion_map_test();
+            break;
+        case SHARE_TEST:
+            ion_share_test();
+            break;
+        default:
+            printf("must specify a test (alloc, map, share)\n");
+    }
+    return 0;
 }
diff --git a/libion/kernel-headers/linux/ion.h b/libion/kernel-headers/linux/ion.h
new file mode 100644
index 0000000..5af39d0
--- /dev/null
+++ b/libion/kernel-headers/linux/ion.h
@@ -0,0 +1,78 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _UAPI_LINUX_ION_H
+#define _UAPI_LINUX_ION_H
+#include <linux/ioctl.h>
+#include <linux/types.h>
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+typedef int ion_user_handle_t;
+enum ion_heap_type {
+ ION_HEAP_TYPE_SYSTEM,
+ ION_HEAP_TYPE_SYSTEM_CONTIG,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ ION_HEAP_TYPE_CARVEOUT,
+ ION_HEAP_TYPE_CHUNK,
+ ION_HEAP_TYPE_DMA,
+ ION_HEAP_TYPE_CUSTOM,
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ ION_NUM_HEAPS = 16,
+};
+#define ION_HEAP_SYSTEM_MASK (1 << ION_HEAP_TYPE_SYSTEM)
+#define ION_HEAP_SYSTEM_CONTIG_MASK (1 << ION_HEAP_TYPE_SYSTEM_CONTIG)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define ION_HEAP_CARVEOUT_MASK (1 << ION_HEAP_TYPE_CARVEOUT)
+#define ION_HEAP_TYPE_DMA_MASK (1 << ION_HEAP_TYPE_DMA)
+#define ION_NUM_HEAP_IDS sizeof(unsigned int) * 8
+#define ION_FLAG_CACHED 1
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define ION_FLAG_CACHED_NEEDS_SYNC 2
+struct ion_allocation_data {
+ size_t len;
+ size_t align;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ unsigned int heap_id_mask;
+ unsigned int flags;
+ ion_user_handle_t handle;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct ion_fd_data {
+ ion_user_handle_t handle;
+ int fd;
+};
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct ion_handle_data {
+ ion_user_handle_t handle;
+};
+struct ion_custom_data {
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ unsigned int cmd;
+ unsigned long arg;
+};
+#define ION_IOC_MAGIC 'I'
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define ION_IOC_ALLOC _IOWR(ION_IOC_MAGIC, 0,   struct ion_allocation_data)
+#define ION_IOC_FREE _IOWR(ION_IOC_MAGIC, 1, struct ion_handle_data)
+#define ION_IOC_MAP _IOWR(ION_IOC_MAGIC, 2, struct ion_fd_data)
+#define ION_IOC_SHARE _IOWR(ION_IOC_MAGIC, 4, struct ion_fd_data)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define ION_IOC_IMPORT _IOWR(ION_IOC_MAGIC, 5, struct ion_fd_data)
+#define ION_IOC_SYNC _IOWR(ION_IOC_MAGIC, 7, struct ion_fd_data)
+#define ION_IOC_CUSTOM _IOWR(ION_IOC_MAGIC, 6, struct ion_custom_data)
+#endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
diff --git a/libion/kernel-headers/linux/ion_test.h b/libion/kernel-headers/linux/ion_test.h
new file mode 100644
index 0000000..2b0f062
--- /dev/null
+++ b/libion/kernel-headers/linux/ion_test.h
@@ -0,0 +1,36 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ***   To edit the content of this header, modify the corresponding
+ ***   source file (e.g. under external/kernel-headers/original/) then
+ ***   run bionic/libc/kernel/tools/update_all.py
+ ***
+ ***   Any manual change here will be lost the next time this script will
+ ***   be run. You've been warned!
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef _UAPI_LINUX_ION_TEST_H
+#define _UAPI_LINUX_ION_TEST_H
+#include <linux/ioctl.h>
+#include <linux/types.h>
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+struct ion_test_rw_data {
+ __u64 ptr;
+ __u64 offset;
+ __u64 size;
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+ int write;
+};
+#define ION_IOC_MAGIC 'I'
+#define ION_IOC_TEST_SET_FD   _IO(ION_IOC_MAGIC, 0xf0)
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#define ION_IOC_TEST_DMA_MAPPING   _IOW(ION_IOC_MAGIC, 0xf1, struct ion_test_rw_data)
+#define ION_IOC_TEST_KERNEL_MAPPING   _IOW(ION_IOC_MAGIC, 0xf2, struct ion_test_rw_data)
+#endif
diff --git a/libion/original-kernel-headers/linux/ion.h b/libion/original-kernel-headers/linux/ion.h
new file mode 100644
index 0000000..f09e7c1
--- /dev/null
+++ b/libion/original-kernel-headers/linux/ion.h
@@ -0,0 +1,196 @@
+/*
+ * drivers/staging/android/uapi/ion.h
+ *
+ * Copyright (C) 2011 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _UAPI_LINUX_ION_H
+#define _UAPI_LINUX_ION_H
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+typedef int ion_user_handle_t;
+
+/**
+ * enum ion_heap_types - list of all possible types of heaps
+ * @ION_HEAP_TYPE_SYSTEM:	 memory allocated via vmalloc
+ * @ION_HEAP_TYPE_SYSTEM_CONTIG: memory allocated via kmalloc
+ * @ION_HEAP_TYPE_CARVEOUT:	 memory allocated from a prereserved
+ * 				 carveout heap, allocations are physically
+ * 				 contiguous
+ * @ION_HEAP_TYPE_DMA:		 memory allocated via DMA API
+ * @ION_NUM_HEAPS:		 helper for iterating over heaps, a bit mask
+ * 				 is used to identify the heaps, so only 32
+ * 				 total heap types are supported
+ */
+enum ion_heap_type {
+	ION_HEAP_TYPE_SYSTEM,
+	ION_HEAP_TYPE_SYSTEM_CONTIG,
+	ION_HEAP_TYPE_CARVEOUT,
+	ION_HEAP_TYPE_CHUNK,
+	ION_HEAP_TYPE_DMA,
+	ION_HEAP_TYPE_CUSTOM, /* must be last so device specific heaps always
+				 are at the end of this enum */
+	ION_NUM_HEAPS = 16,
+};
+
+#define ION_HEAP_SYSTEM_MASK		(1 << ION_HEAP_TYPE_SYSTEM)
+#define ION_HEAP_SYSTEM_CONTIG_MASK	(1 << ION_HEAP_TYPE_SYSTEM_CONTIG)
+#define ION_HEAP_CARVEOUT_MASK		(1 << ION_HEAP_TYPE_CARVEOUT)
+#define ION_HEAP_TYPE_DMA_MASK		(1 << ION_HEAP_TYPE_DMA)
+
+#define ION_NUM_HEAP_IDS		sizeof(unsigned int) * 8
+
+/**
+ * allocation flags - the lower 16 bits are used by core ion, the upper 16
+ * bits are reserved for use by the heaps themselves.
+ */
+#define ION_FLAG_CACHED 1		/* mappings of this buffer should be
+					   cached, ion will do cache
+					   maintenance when the buffer is
+					   mapped for dma */
+#define ION_FLAG_CACHED_NEEDS_SYNC 2	/* mappings of this buffer will created
+					   at mmap time, if this is set
+					   caches must be managed manually */
+
+/**
+ * DOC: Ion Userspace API
+ *
+ * create a client by opening /dev/ion
+ * most operations handled via following ioctls
+ *
+ */
+
+/**
+ * struct ion_allocation_data - metadata passed from userspace for allocations
+ * @len:		size of the allocation
+ * @align:		required alignment of the allocation
+ * @heap_id_mask:	mask of heap ids to allocate from
+ * @flags:		flags passed to heap
+ * @handle:		pointer that will be populated with a cookie to use to 
+ *			refer to this allocation
+ *
+ * Provided by userspace as an argument to the ioctl
+ */
+struct ion_allocation_data {
+	size_t len;
+	size_t align;
+	unsigned int heap_id_mask;
+	unsigned int flags;
+	ion_user_handle_t handle;
+};
+
+/**
+ * struct ion_fd_data - metadata passed to/from userspace for a handle/fd pair
+ * @handle:	a handle
+ * @fd:		a file descriptor representing that handle
+ *
+ * For ION_IOC_SHARE or ION_IOC_MAP userspace populates the handle field with
+ * the handle returned from ion alloc, and the kernel returns the file
+ * descriptor to share or map in the fd field.  For ION_IOC_IMPORT, userspace
+ * provides the file descriptor and the kernel returns the handle.
+ */
+struct ion_fd_data {
+	ion_user_handle_t handle;
+	int fd;
+};
+
+/**
+ * struct ion_handle_data - a handle passed to/from the kernel
+ * @handle:	a handle
+ */
+struct ion_handle_data {
+	ion_user_handle_t handle;
+};
+
+/**
+ * struct ion_custom_data - metadata passed to/from userspace for a custom ioctl
+ * @cmd:	the custom ioctl function to call
+ * @arg:	additional data to pass to the custom ioctl, typically a user
+ *		pointer to a predefined structure
+ *
+ * This works just like the regular cmd and arg fields of an ioctl.
+ */
+struct ion_custom_data {
+	unsigned int cmd;
+	unsigned long arg;
+};
+
+#define ION_IOC_MAGIC		'I'
+
+/**
+ * DOC: ION_IOC_ALLOC - allocate memory
+ *
+ * Takes an ion_allocation_data struct and returns it with the handle field
+ * populated with the opaque handle for the allocation.
+ */
+#define ION_IOC_ALLOC		_IOWR(ION_IOC_MAGIC, 0, \
+				      struct ion_allocation_data)
+
+/**
+ * DOC: ION_IOC_FREE - free memory
+ *
+ * Takes an ion_handle_data struct and frees the handle.
+ */
+#define ION_IOC_FREE		_IOWR(ION_IOC_MAGIC, 1, struct ion_handle_data)
+
+/**
+ * DOC: ION_IOC_MAP - get a file descriptor to mmap
+ *
+ * Takes an ion_fd_data struct with the handle field populated with a valid
+ * opaque handle.  Returns the struct with the fd field set to a file
+ * descriptor open in the current address space.  This file descriptor
+ * can then be used as an argument to mmap.
+ */
+#define ION_IOC_MAP		_IOWR(ION_IOC_MAGIC, 2, struct ion_fd_data)
+
+/**
+ * DOC: ION_IOC_SHARE - creates a file descriptor to use to share an allocation
+ *
+ * Takes an ion_fd_data struct with the handle field populated with a valid
+ * opaque handle.  Returns the struct with the fd field set to a file
+ * descriptor open in the current address space.  This file descriptor
+ * can then be passed to another process.  The corresponding opaque handle can
+ * be retrieved via ION_IOC_IMPORT.
+ */
+#define ION_IOC_SHARE		_IOWR(ION_IOC_MAGIC, 4, struct ion_fd_data)
+
+/**
+ * DOC: ION_IOC_IMPORT - imports a shared file descriptor
+ *
+ * Takes an ion_fd_data struct with the fd field populated with a valid file
+ * descriptor obtained from ION_IOC_SHARE and returns the struct with the handle
+ * filed set to the corresponding opaque handle.
+ */
+#define ION_IOC_IMPORT		_IOWR(ION_IOC_MAGIC, 5, struct ion_fd_data)
+
+/**
+ * DOC: ION_IOC_SYNC - syncs a shared file descriptors to memory
+ *
+ * Deprecated in favor of using the dma_buf api's correctly (syncing
+ * will happend automatically when the buffer is mapped to a device).
+ * If necessary should be used after touching a cached buffer from the cpu,
+ * this will make the buffer in memory coherent.
+ */
+#define ION_IOC_SYNC		_IOWR(ION_IOC_MAGIC, 7, struct ion_fd_data)
+
+/**
+ * DOC: ION_IOC_CUSTOM - call architecture specific ion ioctl
+ *
+ * Takes the argument of the architecture specific ioctl to call and
+ * passes appropriate userdata for that ioctl
+ */
+#define ION_IOC_CUSTOM		_IOWR(ION_IOC_MAGIC, 6, struct ion_custom_data)
+
+#endif /* _UAPI_LINUX_ION_H */
diff --git a/libion/original-kernel-headers/linux/ion_test.h b/libion/original-kernel-headers/linux/ion_test.h
new file mode 100644
index 0000000..614d1e3
--- /dev/null
+++ b/libion/original-kernel-headers/linux/ion_test.h
@@ -0,0 +1,69 @@
+/*
+ * drivers/staging/android/uapi/ion.h
+ *
+ * Copyright (C) 2011 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _UAPI_LINUX_ION_TEST_H
+#define _UAPI_LINUX_ION_TEST_H
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+
+/**
+ * struct ion_test_rw_data - metadata passed to the kernel to read handle
+ * @ptr:	a pointer to an area at least as large as size
+ * @offset:	offset into the ion buffer to start reading
+ * @size:	size to read or write
+ * @write:	1 to write, 0 to read
+ */
+struct ion_test_rw_data {
+	__u64 ptr;
+	__u64 offset;
+	__u64 size;
+	int write;
+};
+
+#define ION_IOC_MAGIC		'I'
+
+/**
+ * DOC: ION_IOC_TEST_SET_DMA_BUF - attach a dma buf to the test driver
+ *
+ * Attaches a dma buf fd to the test driver.  Passing a second fd or -1 will
+ * release the first fd.
+ */
+#define ION_IOC_TEST_SET_FD \
+			_IO(ION_IOC_MAGIC, 0xf0)
+
+/**
+ * DOC: ION_IOC_TEST_DMA_MAPPING - read or write memory from a handle as DMA
+ *
+ * Reads or writes the memory from a handle using an uncached mapping.  Can be
+ * used by unit tests to emulate a DMA engine as close as possible.  Only
+ * expected to be used for debugging and testing, may not always be available.
+ */
+#define ION_IOC_TEST_DMA_MAPPING \
+			_IOW(ION_IOC_MAGIC, 0xf1, struct ion_test_rw_data)
+
+/**
+ * DOC: ION_IOC_TEST_KERNEL_MAPPING - read or write memory from a handle
+ *
+ * Reads or writes the memory from a handle using a kernel mapping.  Can be
+ * used by unit tests to test heap map_kernel functions.  Only expected to be
+ * used for debugging and testing, may not always be available.
+ */
+#define ION_IOC_TEST_KERNEL_MAPPING \
+			_IOW(ION_IOC_MAGIC, 0xf2, struct ion_test_rw_data)
+
+
+#endif /* _UAPI_LINUX_ION_H */