Instead of passing the device fd and resources as global variables group
them in a device structure and pass it explictly to all functions that
need it.

Signed-off-by: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
---
 tests/modetest/modetest.c | 201 ++++++++++++++++++++++++----------------------
 1 file changed, 103 insertions(+), 98 deletions(-)

diff --git a/tests/modetest/modetest.c b/tests/modetest/modetest.c
index 89bfc53..cfcb989 100644
--- a/tests/modetest/modetest.c
+++ b/tests/modetest/modetest.c
@@ -95,8 +95,12 @@ struct resources {
        struct plane *planes;
 };
 
-struct resources *resources;
-int fd;
+struct device {
+       int fd;
+
+       struct resources *resources;
+       struct kms_driver *kms;
+};
 
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
 
@@ -197,15 +201,15 @@ static const char *mode_flag_names[] = {
 
 static bit_name_fn(mode_flag)
 
-static void dump_encoders(void)
+static void dump_encoders(struct device *dev)
 {
        drmModeEncoder *encoder;
        int i;
 
        printf("Encoders:\n");
        printf("id\tcrtc\ttype\tpossible crtcs\tpossible clones\t\n");
-       for (i = 0; i < resources->res->count_encoders; i++) {
-               encoder = resources->encoders[i].encoder;
+       for (i = 0; i < dev->resources->res->count_encoders; i++) {
+               encoder = dev->resources->encoders[i].encoder;
                if (!encoder)
                        continue;
 
@@ -240,14 +244,13 @@ static void dump_mode(drmModeModeInfo *mode)
        printf("\n");
 }
 
-static void
-dump_blob(uint32_t blob_id)
+static void dump_blob(struct device *dev, uint32_t blob_id)
 {
        uint32_t i;
        unsigned char *blob_data;
        drmModePropertyBlobPtr blob;
 
-       blob = drmModeGetPropertyBlob(fd, blob_id);
+       blob = drmModeGetPropertyBlob(dev->fd, blob_id);
        if (!blob)
                return;
 
@@ -263,8 +266,8 @@ dump_blob(uint32_t blob_id)
        drmModeFreePropertyBlob(blob);
 }
 
-static void
-dump_prop(drmModePropertyPtr prop, uint32_t prop_id, uint64_t value)
+static void dump_prop(struct device *dev, drmModePropertyPtr prop,
+                     uint32_t prop_id, uint64_t value)
 {
        int i;
        printf("\t%d", prop_id);
@@ -316,7 +319,7 @@ dump_prop(drmModePropertyPtr prop, uint32_t prop_id, 
uint64_t value)
        if (prop->flags & DRM_MODE_PROP_BLOB) {
                printf("\t\tblobs:\n");
                for (i = 0; i < prop->count_blobs; i++)
-                       dump_blob(prop->blob_ids[i]);
+                       dump_blob(dev, prop->blob_ids[i]);
                printf("\n");
        } else {
                assert(prop->count_blobs == 0);
@@ -324,19 +327,19 @@ dump_prop(drmModePropertyPtr prop, uint32_t prop_id, 
uint64_t value)
 
        printf("\t\tvalue:");
        if (prop->flags & DRM_MODE_PROP_BLOB)
-               dump_blob(value);
+               dump_blob(dev, value);
        else
                printf(" %"PRIu64"\n", value);
 }
 
-static void dump_connectors(void)
+static void dump_connectors(struct device *dev)
 {
        int i, j;
 
        printf("Connectors:\n");
        printf("id\tencoder\tstatus\t\ttype\tsize (mm)\tmodes\tencoders\n");
-       for (i = 0; i < resources->res->count_connectors; i++) {
-               struct connector *_connector = &resources->connectors[i];
+       for (i = 0; i < dev->resources->res->count_connectors; i++) {
+               struct connector *_connector = &dev->resources->connectors[i];
                drmModeConnector *connector = _connector->connector;
                if (!connector)
                        continue;
@@ -364,7 +367,7 @@ static void dump_connectors(void)
                if (_connector->props) {
                        printf("  props:\n");
                        for (j = 0; j < (int)_connector->props->count_props; 
j++)
-                               dump_prop(_connector->props_info[j],
+                               dump_prop(dev, _connector->props_info[j],
                                          _connector->props->props[j],
                                          _connector->props->prop_values[j]);
                }
@@ -372,15 +375,15 @@ static void dump_connectors(void)
        printf("\n");
 }
 
-static void dump_crtcs(void)
+static void dump_crtcs(struct device *dev)
 {
        int i;
        uint32_t j;
 
        printf("CRTCs:\n");
        printf("id\tfb\tpos\tsize\n");
-       for (i = 0; i < resources->res->count_crtcs; i++) {
-               struct crtc *_crtc = &resources->crtcs[i];
+       for (i = 0; i < dev->resources->res->count_crtcs; i++) {
+               struct crtc *_crtc = &dev->resources->crtcs[i];
                drmModeCrtc *crtc = _crtc->crtc;
                if (!crtc)
                        continue;
@@ -395,7 +398,7 @@ static void dump_crtcs(void)
                if (_crtc->props) {
                        printf("  props:\n");
                        for (j = 0; j < _crtc->props->count_props; j++)
-                               dump_prop(_crtc->props_info[j],
+                               dump_prop(dev, _crtc->props_info[j],
                                          _crtc->props->props[j],
                                          _crtc->props->prop_values[j]);
                } else {
@@ -405,15 +408,15 @@ static void dump_crtcs(void)
        printf("\n");
 }
 
-static void dump_framebuffers(void)
+static void dump_framebuffers(struct device *dev)
 {
        drmModeFB *fb;
        int i;
 
        printf("Frame buffers:\n");
        printf("id\tsize\tpitch\n");
-       for (i = 0; i < resources->res->count_fbs; i++) {
-               fb = resources->fbs[i].fb;
+       for (i = 0; i < dev->resources->res->count_fbs; i++) {
+               fb = dev->resources->fbs[i].fb;
                if (!fb)
                        continue;
 
@@ -425,18 +428,18 @@ static void dump_framebuffers(void)
        printf("\n");
 }
 
-static void dump_planes(void)
+static void dump_planes(struct device *dev)
 {
        unsigned int i, j;
 
        printf("Planes:\n");
        printf("id\tcrtc\tfb\tCRTC x,y\tx,y\tgamma size\tpossible crtcs\n");
 
-       if (!resources->plane_res)
+       if (!dev->resources->plane_res)
                return;
 
-       for (i = 0; i < resources->plane_res->count_planes; i++) {
-               struct plane *plane = &resources->planes[i];
+       for (i = 0; i < dev->resources->plane_res->count_planes; i++) {
+               struct plane *plane = &dev->resources->planes[i];
                drmModePlane *ovr = plane->plane;
                if (!ovr)
                        continue;
@@ -457,7 +460,7 @@ static void dump_planes(void)
                if (plane->props) {
                        printf("  props:\n");
                        for (j = 0; j < plane->props->count_props; j++)
-                               dump_prop(plane->props_info[j],
+                               dump_prop(dev, plane->props_info[j],
                                          plane->props->props[j],
                                          plane->props->prop_values[j]);
                } else {
@@ -518,7 +521,7 @@ static void free_resources(struct resources *res)
        free(res);
 }
 
-static struct resources *get_resources(int fd)
+static struct resources *get_resources(struct device *dev)
 {
        struct resources *res;
 
@@ -528,7 +531,7 @@ static struct resources *get_resources(int fd)
 
        memset(res, 0, sizeof *res);
 
-       res->res = drmModeGetResources(fd);
+       res->res = drmModeGetResources(dev->fd);
        if (!res->res) {
                fprintf(stderr, "drmModeGetResources failed: %s\n",
                        strerror(errno));
@@ -553,7 +556,7 @@ static struct resources *get_resources(int fd)
                int i;                                                          
\
                for (i = 0; i < (int)(_res)->__res->count_##type##s; ++i) {     
\
                        (_res)->type##s[i].type =                               
\
-                               drmModeGet##Type(fd, 
(_res)->__res->type##s[i]); \
+                               drmModeGet##Type(dev->fd, 
(_res)->__res->type##s[i]); \
                        if (!(_res)->type##s[i].type)                           
\
                                fprintf(stderr, "could not get %s %i: %s\n",    
\
                                        #type, (_res)->__res->type##s[i],       
\
@@ -573,7 +576,7 @@ static struct resources *get_resources(int fd)
                        struct type *obj = &res->type##s[i];                    
\
                        unsigned int j;                                         
\
                        obj->props =                                            
\
-                               drmModeObjectGetProperties(fd, 
obj->type->type##_id, \
+                               drmModeObjectGetProperties(dev->fd, 
obj->type->type##_id, \
                                                           
DRM_MODE_OBJECT_##Type); \
                        if (!obj->props) {                                      
\
                                fprintf(stderr,                                 
\
@@ -588,14 +591,14 @@ static struct resources *get_resources(int fd)
                                continue;                                       
\
                        for (j = 0; j < obj->props->count_props; ++j)           
\
                                obj->props_info[j] =                            
\
-                                       drmModeGetProperty(fd, 
obj->props->props[j]); \
+                                       drmModeGetProperty(dev->fd, 
obj->props->props[j]); \
                }                                                               
\
        } while (0)
 
        get_properties(res, res, crtc, CRTC);
        get_properties(res, res, connector, CONNECTOR);
 
-       res->plane_res = drmModeGetPlaneResources(fd);
+       res->plane_res = drmModeGetPlaneResources(dev->fd);
        if (!res->plane_res) {
                fprintf(stderr, "drmModeGetPlaneResources failed: %s\n",
                        strerror(errno));
@@ -654,16 +657,15 @@ struct plane_arg {
        unsigned int fourcc;
 };
 
-static void
-connector_find_mode(struct connector_arg *c)
+static void connector_find_mode(struct device *dev, struct connector_arg *c)
 {
        drmModeConnector *connector;
        int i, j;
 
        /* First, find the connector & mode */
        c->mode = NULL;
-       for (i = 0; i < resources->res->count_connectors; i++) {
-               connector = resources->connectors[i].connector;
+       for (i = 0; i < dev->resources->res->count_connectors; i++) {
+               connector = dev->resources->connectors[i].connector;
                if (!connector)
                        continue;
 
@@ -690,8 +692,8 @@ connector_find_mode(struct connector_arg *c)
        }
 
        /* Now get the encoder */
-       for (i = 0; i < resources->res->count_encoders; i++) {
-               c->encoder = resources->encoders[i].encoder;
+       for (i = 0; i < dev->resources->res->count_encoders; i++) {
+               c->encoder = dev->resources->encoders[i].encoder;
                if (!c->encoder)
                        continue;
 
@@ -703,8 +705,8 @@ connector_find_mode(struct connector_arg *c)
                c->crtc = c->encoder->crtc_id;
 
        /* and figure out which crtc index it is: */
-       for (i = 0; i < resources->res->count_crtcs; i++) {
-               if (c->crtc == (int)resources->res->crtcs[i]) {
+       for (i = 0; i < dev->resources->res->count_crtcs; i++) {
+               if (c->crtc == (int)dev->resources->res->crtcs[i]) {
                        c->pipe = i;
                        break;
                }
@@ -724,7 +726,7 @@ struct property_arg {
        uint64_t value;
 };
 
-static void set_property(struct property_arg *p)
+static void set_property(struct device *dev, struct property_arg *p)
 {
        drmModeObjectProperties *props;
        drmModePropertyRes **props_info;
@@ -748,11 +750,11 @@ static void set_property(struct property_arg *p)
                }                                                               
\
        } while(0)                                                              
\
 
-       find_object(resources, res, crtc, CRTC);
+       find_object(dev->resources, res, crtc, CRTC);
        if (p->obj_type == 0)
-               find_object(resources, res, connector, CONNECTOR);
+               find_object(dev->resources, res, connector, CONNECTOR);
        if (p->obj_type == 0)
-               find_object(resources, plane_res, plane, PLANE);
+               find_object(dev->resources, plane_res, plane, PLANE);
        if (p->obj_type == 0) {
                fprintf(stderr, "Object %i not found, can't set property\n",
                        p->obj_id);
@@ -780,7 +782,8 @@ static void set_property(struct property_arg *p)
 
        p->prop_id = props->props[i];
 
-       ret = drmModeObjectSetProperty(fd, p->obj_id, p->obj_type, p->prop_id, 
p->value);
+       ret = drmModeObjectSetProperty(dev->fd, p->obj_id, p->obj_type,
+                                      p->prop_id, p->value);
        if (ret < 0)
                fprintf(stderr, "failed to set %s %i property %s to %" PRIu64 
": %s\n",
                        obj_type, p->obj_id, p->name, p->value, 
strerror(errno));
@@ -818,7 +821,7 @@ page_flip_handler(int fd, unsigned int frame,
 }
 
 static int
-set_plane(struct kms_driver *kms, struct connector_arg *c, struct plane_arg *p)
+set_plane(struct device *dev, struct connector_arg *c, struct plane_arg *p)
 {
        drmModePlane *ovr;
        uint32_t handles[4], pitches[4], offsets[4] = {0}; /* we only use [0] */
@@ -829,8 +832,8 @@ set_plane(struct kms_driver *kms, struct connector_arg *c, 
struct plane_arg *p)
        unsigned int i;
 
        /* find an unused plane which can be connected to our crtc */
-       for (i = 0; i < resources->plane_res->count_planes && !plane_id; i++) {
-               ovr = resources->planes[i].plane;
+       for (i = 0; i < dev->resources->plane_res->count_planes && !plane_id; 
i++) {
+               ovr = dev->resources->planes[i].plane;
                if (!ovr)
                        continue;
 
@@ -846,13 +849,13 @@ set_plane(struct kms_driver *kms, struct connector_arg 
*c, struct plane_arg *p)
        fprintf(stderr, "testing %dx%d@%s overlay plane %u\n",
                p->w, p->h, p->format_str, plane_id);
 
-       plane_bo = create_test_buffer(kms, p->fourcc, p->w, p->h, handles,
+       plane_bo = create_test_buffer(dev->kms, p->fourcc, p->w, p->h, handles,
                                      pitches, offsets, PATTERN_TILES);
        if (plane_bo == NULL)
                return -1;
 
        /* just use single plane format for now.. */
-       if (drmModeAddFB2(fd, p->w, p->h, p->fourcc,
+       if (drmModeAddFB2(dev->fd, p->w, p->h, p->fourcc,
                        handles, pitches, offsets, &p->fb_id, plane_flags)) {
                fprintf(stderr, "failed to add fb: %s\n", strerror(errno));
                return -1;
@@ -870,7 +873,7 @@ set_plane(struct kms_driver *kms, struct connector_arg *c, 
struct plane_arg *p)
        crtc_h = p->h;
 
        /* note src coords (last 4 args) are in Q16 format */
-       if (drmModeSetPlane(fd, plane_id, c->crtc, p->fb_id,
+       if (drmModeSetPlane(dev->fd, plane_id, c->crtc, p->fb_id,
                            plane_flags, crtc_x, crtc_y, crtc_w, crtc_h,
                            0, 0, p->w << 16, p->h << 16)) {
                fprintf(stderr, "failed to enable plane: %s\n",
@@ -883,11 +886,9 @@ set_plane(struct kms_driver *kms, struct connector_arg *c, 
struct plane_arg *p)
        return 0;
 }
 
-static void
-set_mode(struct connector_arg *c, int count, struct plane_arg *p, int 
plane_count,
-               int page_flip)
+static void set_mode(struct device *dev, struct connector_arg *c, int count,
+                    struct plane_arg *p, int plane_count, int page_flip)
 {
-       struct kms_driver *kms;
        struct kms_bo *bo, *other_bo;
        unsigned int fb_id, other_fb_id;
        int i, j, ret, width, height, x;
@@ -897,7 +898,7 @@ set_mode(struct connector_arg *c, int count, struct 
plane_arg *p, int plane_coun
        width = 0;
        height = 0;
        for (i = 0; i < count; i++) {
-               connector_find_mode(&c[i]);
+               connector_find_mode(dev, &c[i]);
                if (c[i].mode == NULL)
                        continue;
                width += c[i].mode->hdisplay;
@@ -905,19 +906,12 @@ set_mode(struct connector_arg *c, int count, struct 
plane_arg *p, int plane_coun
                        height = c[i].mode->vdisplay;
        }
 
-       ret = kms_create(fd, &kms);
-       if (ret) {
-               fprintf(stderr, "failed to create kms driver: %s\n",
-                       strerror(-ret));
-               return;
-       }
-
-       bo = create_test_buffer(kms, c->fourcc, width, height, handles,
+       bo = create_test_buffer(dev->kms, c->fourcc, width, height, handles,
                                pitches, offsets, PATTERN_SMPTE);
        if (bo == NULL)
                return;
 
-       ret = drmModeAddFB2(fd, width, height, c->fourcc,
+       ret = drmModeAddFB2(dev->fd, width, height, c->fourcc,
                            handles, pitches, offsets, &fb_id, 0);
        if (ret) {
                fprintf(stderr, "failed to add fb (%ux%u): %s\n",
@@ -933,11 +927,11 @@ set_mode(struct connector_arg *c, int count, struct 
plane_arg *p, int plane_coun
                printf("setting mode %s@%s on connector %d, crtc %d\n",
                       c[i].mode_str, c[i].format_str, c[i].id, c[i].crtc);
 
-               ret = drmModeSetCrtc(fd, c[i].crtc, fb_id, x, 0,
+               ret = drmModeSetCrtc(dev->fd, c[i].crtc, fb_id, x, 0,
                                     &c[i].id, 1, c[i].mode);
 
                /* XXX: Actually check if this is needed */
-               drmModeDirtyFB(fd, fb_id, NULL, 0);
+               drmModeDirtyFB(dev->fd, fb_id, NULL, 0);
 
                x += c[i].mode->hdisplay;
 
@@ -949,19 +943,19 @@ set_mode(struct connector_arg *c, int count, struct 
plane_arg *p, int plane_coun
                /* if we have a plane/overlay to show, set that up now: */
                for (j = 0; j < plane_count; j++)
                        if (p[j].con_id == c[i].id)
-                               if (set_plane(kms, &c[i], &p[j]))
+                               if (set_plane(dev, &c[i], &p[j]))
                                        return;
        }
 
        if (!page_flip)
                return;
-       
-       other_bo = create_test_buffer(kms, c->fourcc, width, height, handles,
+
+       other_bo = create_test_buffer(dev->kms, c->fourcc, width, height, 
handles,
                                      pitches, offsets, PATTERN_PLAIN);
        if (other_bo == NULL)
                return;
 
-       ret = drmModeAddFB2(fd, width, height, c->fourcc, handles, pitches, 
offsets,
+       ret = drmModeAddFB2(dev->fd, width, height, c->fourcc, handles, 
pitches, offsets,
                            &other_fb_id, 0);
        if (ret) {
                fprintf(stderr, "failed to add fb: %s\n", strerror(errno));
@@ -972,7 +966,7 @@ set_mode(struct connector_arg *c, int count, struct 
plane_arg *p, int plane_coun
                if (c[i].mode == NULL)
                        continue;
 
-               ret = drmModePageFlip(fd, c[i].crtc, other_fb_id,
+               ret = drmModePageFlip(dev->fd, c[i].crtc, other_fb_id,
                                      DRM_MODE_PAGE_FLIP_EVENT, &c[i]);
                if (ret) {
                        fprintf(stderr, "failed to page flip: %s\n", 
strerror(errno));
@@ -1013,8 +1007,8 @@ set_mode(struct connector_arg *c, int count, struct 
plane_arg *p, int plane_coun
 
                FD_ZERO(&fds);
                FD_SET(0, &fds);
-               FD_SET(fd, &fds);
-               ret = select(fd + 1, &fds, NULL, NULL, &timeout);
+               FD_SET(dev->fd, &fds);
+               ret = select(dev->fd + 1, &fds, NULL, NULL, &timeout);
 
                if (ret <= 0) {
                        fprintf(stderr, "select timed out or error (ret %d)\n",
@@ -1025,12 +1019,11 @@ set_mode(struct connector_arg *c, int count, struct 
plane_arg *p, int plane_coun
                }
 #endif
 
-               drmHandleEvent(fd, &evctx);
+               drmHandleEvent(dev->fd, &evctx);
        }
 
        kms_bo_destroy(&bo);
        kms_bo_destroy(&other_bo);
-       kms_destroy(&kms);
 }
 
 #define min(a, b)      ((a) < (b) ? (a) : (b))
@@ -1154,8 +1147,6 @@ static void usage(char *name)
        exit(0);
 }
 
-#define dump_resource(res) if (res) dump_##res()
-
 static int page_flipping_supported(void)
 {
        /*FIXME: generic ioctl needed? */
@@ -1181,6 +1172,8 @@ static char optstr[] = "cdefM:P:ps:vw:";
 
 int main(int argc, char **argv)
 {
+       struct device dev;
+
        int c;
        int encoders = 0, connectors = 0, crtcs = 0, planes = 0, framebuffers = 
0;
        int drop_master = 0;
@@ -1194,7 +1187,8 @@ int main(int argc, char **argv)
        struct plane_arg *plane_args = NULL;
        struct property_arg *prop_args = NULL;
        unsigned int args = 0;
-       
+       int ret;
+
        opterr = 0;
        while ((c = getopt(argc, argv, optstr)) != -1) {
                args++;
@@ -1273,16 +1267,16 @@ int main(int argc, char **argv)
                encoders = connectors = crtcs = planes = framebuffers = 1;
 
        if (module) {
-               fd = drmOpen(module, NULL);
-               if (fd < 0) {
+               dev.fd = drmOpen(module, NULL);
+               if (dev.fd < 0) {
                        fprintf(stderr, "failed to open device '%s'.\n", 
module);
                        return 1;
                }
        } else {
                for (i = 0; i < ARRAY_SIZE(modules); i++) {
                        printf("trying to open device '%s'...", modules[i]);
-                       fd = drmOpen(modules[i], NULL);
-                       if (fd < 0) {
+                       dev.fd = drmOpen(modules[i], NULL);
+                       if (dev.fd < 0) {
                                printf("failed.\n");
                        } else {
                                printf("success.\n");
@@ -1290,7 +1284,7 @@ int main(int argc, char **argv)
                        }
                }
 
-               if (fd < 0) {
+               if (dev.fd < 0) {
                        fprintf(stderr, "no device found.\n");
                        return 1;
                }
@@ -1301,29 +1295,40 @@ int main(int argc, char **argv)
                return -1;
        }
 
-       resources = get_resources(fd);
-       if (!resources) {
-               drmClose(fd);
+       dev.resources = get_resources(&dev);
+       if (!dev.resources) {
+               drmClose(dev.fd);
                return 1;
        }
 
-       dump_resource(encoders);
-       dump_resource(connectors);
-       dump_resource(crtcs);
-       dump_resource(planes);
-       dump_resource(framebuffers);
+#define dump_resource(dev, res) if (res) dump_##res(dev)
+
+       dump_resource(&dev, encoders);
+       dump_resource(&dev, connectors);
+       dump_resource(&dev, crtcs);
+       dump_resource(&dev, planes);
+       dump_resource(&dev, framebuffers);
 
        for (i = 0; i < prop_count; ++i)
-               set_property(&prop_args[i]);
+               set_property(&dev, &prop_args[i]);
 
        if (count > 0) {
-               set_mode(con_args, count, plane_args, plane_count, test_vsync);
+               ret = kms_create(dev.fd, &dev.kms);
+               if (ret) {
+                       fprintf(stderr, "failed to create kms driver: %s\n",
+                               strerror(-ret));
+                       return 1;
+               }
+
+               set_mode(&dev, con_args, count, plane_args, plane_count, 
test_vsync);
                if (drop_master)
-                       drmDropMaster(fd);
+                       drmDropMaster(dev.fd);
+
+               kms_destroy(&dev.kms);
                getchar();
        }
 
-       free_resources(resources);
+       free_resources(dev.resources);
 
        return 0;
 }
-- 
1.8.1.5

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