This patch adds support for atomic modeset. Using -a option, user can
make modeset to use DRM_IOCTL_MODE_ATOMIC instead of legacy IOCTLs.
Also, by using -w option, user can set the property as before.

Signed-off-by: Hyungwon Hwang <human.hwang at samsung.com>
---
 tests/modetest/modetest.c | 221 +++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 187 insertions(+), 34 deletions(-)

diff --git a/tests/modetest/modetest.c b/tests/modetest/modetest.c
index b7f6d32..753a559 100644
--- a/tests/modetest/modetest.c
+++ b/tests/modetest/modetest.c
@@ -1444,25 +1444,32 @@ static int parse_property(struct property_arg *p, const 
char *arg)

 static void usage(char *name)
 {
-       fprintf(stderr, "usage: %s [-cDdefMPpsCvw]\n", name);
+       fprintf(stderr, "usage: %s [-acDdefMPpsCvw]\n", name);
+       fprintf(stderr, "\tA: supported in atomic modeset\n");
+       fprintf(stderr, "\tL: supported in legacy modeset\n");

-       fprintf(stderr, "\n Query options:\n\n");
+       fprintf(stderr, "\n Query options: [AL]\n\n");
        fprintf(stderr, "\t-c\tlist connectors\n");
        fprintf(stderr, "\t-e\tlist encoders\n");
        fprintf(stderr, "\t-f\tlist framebuffers\n");
        fprintf(stderr, "\t-p\tlist CRTCs and planes (pipes)\n");

-       fprintf(stderr, "\n Test options:\n\n");
+       fprintf(stderr, "\n Common Test options: [AL]\n\n");
+       fprintf(stderr, "\t-w <obj_id>:<prop_name>:<value>\tset property\n");
+
+       fprintf(stderr, "\n Atomic Test options: [A]\n\n");
+       fprintf(stderr, "\t-a\tuse atomic modeset\n");
+
+       fprintf(stderr, "\n Legacy test options: [L]\n\n");
        fprintf(stderr, "\t-P 
<crtc_id>:<w>x<h>[+<x>+<y>][*<scale>][@<format>]\tset a plane\n");
        fprintf(stderr, "\t-s 
<connector_id>[,<connector_id>][@<crtc_id>]:<mode>[-<vrefresh>][@<format>]\tset 
a mode\n");
        fprintf(stderr, "\t-C\ttest hw cursor\n");
        fprintf(stderr, "\t-v\ttest vsynced page flipping\n");
-       fprintf(stderr, "\t-w <obj_id>:<prop_name>:<value>\tset property\n");

        fprintf(stderr, "\n Generic options:\n\n");
-       fprintf(stderr, "\t-d\tdrop master after mode set\n");
-       fprintf(stderr, "\t-M module\tuse the given driver\n");
-       fprintf(stderr, "\t-D device\tuse the given device\n");
+       fprintf(stderr, "\t-d\tdrop master after mode set [L]\n");
+       fprintf(stderr, "\t-M module\tuse the given driver [AL]\n");
+       fprintf(stderr, "\t-D device\tuse the given device [AL]\n");

        fprintf(stderr, "\n\tDefault is to dump all info.\n");
        exit(0);
@@ -1495,7 +1502,132 @@ static int cursor_supported(void)
        return 1;
 }

-static char optstr[] = "cdD:efM:P:ps:Cvw:";
+static uint32_t is_obj_id_in_prop_args(struct property_arg *prop_args,
+                               unsigned int prop_count, uint32_t obj_id)
+{
+       unsigned int i;
+
+       for (i = 0; i < prop_count; i++)
+               if (obj_id == prop_args[i].obj_id)
+                       return true;
+
+       return false;
+}
+
+static int get_value_in_prop_args(struct property_arg *prop_args,
+                       unsigned int prop_count, uint32_t obj_id,
+                       const char *name)
+{
+       unsigned int i;
+
+       for (i = 0; i < prop_count; i++)
+               if (prop_args[i].obj_id == obj_id &&
+                                       !strcmp(prop_args[i].name, name))
+                       return (int)prop_args[i].value;
+
+       return -1;
+}
+
+static uint32_t get_atomic_plane_prop_id(struct resources *res, uint32_t 
obj_id,
+                                                       const char *name)
+{
+       drmModePropertyRes *props_info;
+       struct plane *plane;
+       unsigned int i, j;
+
+       for (i = 0; i < res->plane_res->count_planes; i++) {
+               plane = &res->planes[i];
+               if (plane->plane->plane_id != obj_id)
+                       continue;
+
+               for (j = 0; j < plane->props->count_props; j++) {
+                       props_info = plane->props_info[j];
+                       if (!strcmp(props_info->name, name))
+                               return props_info->prop_id;
+               }
+       }
+
+       return 0;
+}
+
+static int allocate_fb(struct device *dev, drmModeAtomicReqPtr req, struct 
resources *res,
+                       uint32_t width, uint32_t height, uint32_t pixel_format,
+                       int pattern, struct bo **bo, uint32_t *fb_id)
+{
+       uint32_t handles[4] = {0}, pitches[4] = {0}, offsets[4] = {0};
+       int ret;
+
+       *bo = bo_create(dev->fd, pixel_format, width, height,
+                       handles, pitches, offsets, pattern);
+       if (*bo == NULL) {
+               fprintf(stderr, "failed to create bo (%ux%u): %s\n",
+                               width, height, strerror(errno));
+               return -1;
+       }
+
+       ret = drmModeAddFB2(dev->fd, width, height, pixel_format,
+                       handles, pitches, offsets, fb_id, 0);
+       if (ret) {
+               fprintf(stderr, "failed to add fb (%ux%u): %s\n",
+                               width, height, strerror(errno));
+               bo_destroy(*bo);
+               return ret;
+       }
+
+       return 0;
+}
+
+static int allocate_fbs(struct device *dev, drmModeAtomicReqPtr req,
+                       struct resources *res, struct property_arg *prop_args,
+                       unsigned int prop_count)
+{
+       uint32_t plane_id, fb_obj_id, fb_id, i, width,  height, pixel_format;
+       struct bo *bo;
+       int ret;
+
+       for (i = 0; i < res->plane_res->count_planes; i++) {
+               plane_id = res->planes[i].plane->plane_id;
+               if (!is_obj_id_in_prop_args(prop_args, prop_count, plane_id))
+                       continue;
+
+               width = get_value_in_prop_args(prop_args, prop_count, plane_id,
+                                                               "SRC_W");
+               height = get_value_in_prop_args(prop_args, prop_count, plane_id,
+                                                               "SRC_H");
+               pixel_format = DRM_FORMAT_XRGB8888;
+
+               ret = allocate_fb(dev, req, res, width, height, pixel_format,
+                                               PATTERN_SMPTE, &bo, &fb_id);
+               if (ret < 0)
+                       return ret;
+
+               dev->mode.bo = bo;
+               dev->mode.fb_id = fb_id;
+
+               fb_obj_id = get_atomic_plane_prop_id(res, plane_id, "FB_ID");
+               if (!fb_obj_id)
+                       return -1;
+
+               ret = drmModeAtomicAddProperty(req, plane_id, fb_obj_id, fb_id);
+               if (ret < 0)
+                       return ret;
+       }
+
+       return 0;
+}
+
+static void atomic_modeset(struct device *dev, drmModeAtomicReqPtr req,
+                       struct resources *res, struct property_arg *prop_args,
+                       unsigned int prop_count)
+{
+       uint32_t flags = 0;
+
+       allocate_fbs(dev, req, res, prop_args, prop_count);
+
+       drmModeAtomicCommit(dev->fd, req, flags, NULL);
+}
+
+static char optstr[] = "acdD:efM:P:ps:Cvw:";

 int main(int argc, char **argv)
 {
@@ -1515,6 +1647,8 @@ int main(int argc, char **argv)
        struct pipe_arg *pipe_args = NULL;
        struct plane_arg *plane_args = NULL;
        struct property_arg *prop_args = NULL;
+       drmModeAtomicReqPtr req = NULL;
+       char *obj_type = NULL;
        unsigned int args = 0;
        int ret;

@@ -1525,6 +1659,11 @@ int main(int argc, char **argv)
                args++;

                switch (c) {
+               case 'a':
+                       if (!req)
+                               req = drmModeAtomicAlloc();
+                       args--;
+                       break;
                case 'c':
                        connectors = 1;
                        break;
@@ -1646,6 +1785,9 @@ int main(int argc, char **argv)
                return -1;
        }

+       if (req)
+               drmSetClientCap(dev.fd, DRM_CLIENT_CAP_ATOMIC, 1);
+
        dev.resources = get_resources(&dev);
        if (!dev.resources) {
                drmClose(dev.fd);
@@ -1660,46 +1802,57 @@ int main(int argc, char **argv)
        dump_resource(&dev, planes);
        dump_resource(&dev, framebuffers);

-       for (i = 0; i < prop_count; ++i)
-               set_property(&dev, &prop_args[i]);
+       if (req) {
+               for (i = 0; i < prop_count; ++i) {
+                       get_prop_info(dev.resources, &prop_args[i], obj_type);
+                       drmModeAtomicAddProperty(req, prop_args[i].obj_id,
+                               prop_args[i].prop_id, prop_args[i].value);
+               }

-       if (count || plane_count) {
-               uint64_t cap = 0;
+               atomic_modeset(&dev, req, dev.resources, prop_args, prop_count);

-               ret = drmGetCap(dev.fd, DRM_CAP_DUMB_BUFFER, &cap);
-               if (ret || cap == 0) {
-                       fprintf(stderr, "driver doesn't support the dumb buffer 
API\n");
-                       return 1;
-               }
+               getchar();
+       } else {
+               for (i = 0; i < prop_count; ++i)
+                       set_property(&dev, &prop_args[i]);

-               if (count)
-                       set_mode(&dev, pipe_args, count);
+               if (count || plane_count) {
+                       uint64_t cap = 0;

-               if (plane_count)
-                       set_planes(&dev, plane_args, plane_count);
+                       ret = drmGetCap(dev.fd, DRM_CAP_DUMB_BUFFER, &cap);
+                       if (ret || cap == 0) {
+                               fprintf(stderr, "driver doesn't support the 
dumb buffer API\n");
+                               return 1;
+                       }

-               if (test_cursor)
-                       set_cursors(&dev, pipe_args, count);
+                       if (count)
+                               set_mode(&dev, pipe_args, count);

-               if (test_vsync)
-                       test_page_flip(&dev, pipe_args, count);
+                       if (plane_count)
+                               set_planes(&dev, plane_args, plane_count);

-               if (drop_master)
-                       drmDropMaster(dev.fd);
+                       if (test_cursor)
+                               set_cursors(&dev, pipe_args, count);

-               getchar();
+                       if (test_vsync)
+                               test_page_flip(&dev, pipe_args, count);

-               if (test_cursor)
-                       clear_cursors(&dev);
+                       if (drop_master)
+                               drmDropMaster(dev.fd);

-               if (plane_count)
-                       clear_planes(&dev, plane_args, plane_count);
+                       getchar();

-               if (count)
-                       clear_mode(&dev);
+                       if (test_cursor)
+                               clear_cursors(&dev);
+
+                       if (plane_count)
+                               clear_planes(&dev, plane_args, plane_count);
+               }
        }

+       clear_mode(&dev);
        free_resources(dev.resources);
+       drmFree(req);

        return 0;
 }
-- 
2.4.3

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