drm_test: Add drm_test package

Add drm_test Signed-off-by: arvin.zhu <arvin.zhu@starfivetech.com>
2022-08-05 09:57:29 +08:00
parent 6b8cb8042a
commit 4691306abf
16 changed files with 4397 additions and 0 deletions
@@ -0,0 +1,116 @@
+#define _GNU_SOURCE
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/mman.h>
+#include <time.h>
+#include <unistd.h>
+#include <xf86drm.h>
+#include <xf86drmMode.h>
+
+#define DRM_MODULE_NAME "starfive"
+#define DRM_BUSID NULL
+
+struct buffer_object {
+    uint32_t width;
+    uint32_t height;
+    uint32_t pitch;
+    uint32_t handle;
+    uint32_t size;
+    uint8_t *vaddr;
+    uint32_t fb_id;
+};
+
+struct buffer_object buf;
+
+static int modeset_create_fb(int fd, struct buffer_object *bo)
+{
+    struct drm_mode_create_dumb create = {};
+    struct drm_mode_map_dumb map = {};
+
+    create.width = bo->width;
+    create.height = bo->height;
+    create.bpp = 32;
+    drmIoctl(fd, DRM_IOCTL_MODE_CREATE_DUMB, &create);
+
+    bo->pitch = create.pitch;
+    bo->size = create.size;
+    bo->handle = create.handle;
+    // {24, 32}
+    drmModeAddFB(fd, bo->width, bo->height, 32, 32, bo->pitch,
+               bo->handle, &bo->fb_id);
+
+    map.handle = create.handle;
+    drmIoctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &map);
+
+    bo->vaddr = mmap(0, create.size, PROT_READ | PROT_WRITE,
+            MAP_SHARED, fd, map.offset);
+
+    memset(bo->vaddr, 0x55, bo->size);
+
+    return 0;
+}
+
+static void modeset_destroy_fb(int fd, struct buffer_object *bo)
+{
+    struct drm_mode_destroy_dumb destroy = {};
+
+    drmModeRmFB(fd, bo->fb_id);
+
+    munmap(bo->vaddr, bo->size);
+
+    destroy.handle = bo->handle;
+    drmIoctl(fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy);
+}
+
+int main(int argc, char **argv)
+{
+    int fd;
+    drmModeConnector *conn;
+    drmModeRes *res;
+    drmModePlaneRes *plane_res;
+    uint32_t conn_id;
+    uint32_t crtc_id;
+    uint32_t plane_id;
+
+    fd = drmOpen(DRM_MODULE_NAME, DRM_BUSID);
+
+    res = drmModeGetResources(fd);
+    crtc_id = res->crtcs[0];
+    conn_id = res->connectors[0];
+
+    drmSetClientCap(fd, DRM_CLIENT_CAP_UNIVERSAL_PLANES, 1);
+    plane_res = drmModeGetPlaneResources(fd);
+    plane_id = plane_res->planes[0];
+
+    conn = drmModeGetConnector(fd, conn_id);
+    buf.width = conn->modes[0].hdisplay;
+    buf.height = conn->modes[0].vdisplay;
+
+    modeset_create_fb(fd, &buf);
+
+    drmModeSetCrtc(fd, crtc_id, buf.fb_id,
+            0, 0, &conn_id, 1, &conn->modes[0]);
+
+    getchar();
+
+    drmModeSetPlane(fd, plane_id, crtc_id, buf.fb_id, 0,
+            50, 50, 320, 320,
+            100, 150, 320 << 16, 320 << 16);
+
+    getchar();
+
+    modeset_destroy_fb(fd, &buf);
+
+    drmModeFreeConnector(conn);
+    drmModeFreePlaneResources(plane_res);
+    drmModeFreeResources(res);
+
+    close(fd);
+
+    return 0;
+}