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Diffstat (limited to 'gdrm-kms-addfb.c')
| -rw-r--r-- | gdrm-kms-addfb.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/gdrm-kms-addfb.c b/gdrm-kms-addfb.c new file mode 100644 index 0000000..6f9acc2 --- /dev/null +++ b/gdrm-kms-addfb.c @@ -0,0 +1,176 @@ +/* + * gdrm-gem-mmap_arg.c + * + * Test Glamo DRM KMS + * + * (c) 2009 Thomas White <taw@bitwiz.org.uk> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * Copyright © 2008 Intel Corporation + * + * + * Based on tests/gem_mmap_arg.c from libdrm, to which the following notice applies: + * + * Copyright © 2008 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + * Authors: + * Eric Anholt <eric@anholt.net> + * + */ + +#define _FILE_OFFSET_BITS 64 + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include <fcntl.h> +#include <inttypes.h> +#include <errno.h> +#include <sys/stat.h> +#include <sys/mman.h> +#include <xf86drmMode.h> + +#include "drm.h" +#include "glamo_drm.h" +#include "drmtest.h" + +#define OBJECT_SIZE (640*480*2) + + +static int addfb(int fd, int handle) +{ + int ret = 0; + drmModeResPtr r; + drmModeCrtcPtr crtc; + int crtc_id; + int conn_id; + int fb_id; + + r = drmModeGetResources(fd); + printf("There are %i CRTCs, %i connectors, %i encoders" + " and %i framebuffers\n", + r->count_crtcs, r->count_connectors, r->count_encoders, + r->count_fbs); + + crtc_id = r->crtcs[0]; + conn_id = r->connectors[0]; + printf("The first CRTC ID is %i\n", crtc_id); + printf("The first connector ID is %i\n", conn_id); + + drmModeAddFB(fd, 480, 640, 16, 16, 480*2, handle, &fb_id); + printf("My new FB handle is %i\n", fb_id); + if (!fb_id) { + printf("Could not add FB\n"); + return 1; + } + + printf("Getting CRTC info\n"); + crtc = drmModeGetCrtc(fd, crtc_id); + + printf("crtc=%p\n", crtc); + ret = drmModeSetCrtc(fd, crtc_id, fb_id, 0, 0, r->connectors, 1, + &(crtc->mode)); + if ( ret ) { + printf("drmModeSetCrtc returned %i\n", ret); + } + + return fb_id; +} + + +int main(int argc, char **argv) +{ + int fd; + struct drm_glamo_gem_create create; + struct drm_glamo_gem_mmap mmap_arg; + struct drm_gem_close unref; + uint8_t expected[OBJECT_SIZE]; + uint8_t buf[OBJECT_SIZE]; + uint8_t *addr; + uint16_t *addr16; + int ret; + int handle; + char tmp[4]; + int i; + int fb_id; + + fd = drm_open_any(); + + printf("Creating a GEM object\n"); + memset(&create, 0, sizeof(create)); + create.size = OBJECT_SIZE; + ret = ioctl(fd, DRM_IOCTL_GLAMO_GEM_CREATE, &create); + assert(ret == 0); + handle = create.handle; + + printf("Getting an mmap() offset for the new object\n"); + mmap_arg.handle = handle; + mmap_arg.offset = 0; + ret = ioctl(fd, DRM_IOCTL_GLAMO_GEM_MMAP, &mmap_arg); + assert(ret == 0); + + printf("The offset is %8llx\n", (long long int)mmap_arg.offset); + addr = mmap(0, OBJECT_SIZE, PROT_READ | PROT_WRITE, + MAP_SHARED, fd, mmap_arg.offset); + addr16 = (uint16_t *)addr; + printf("Virtual address is 0x%p\n", addr); + + printf("Adding FB\n"); + fb_id = addfb(fd, handle); + + do { + + uint16_t val; + + printf("Press <enter> to continue, q<enter> to finish..."); + fgets(tmp, 3, stdin); + + val = random() & 0xff; + val += (random() & 0xff)<<8; + for ( i=0; i<OBJECT_SIZE/2; i++ ) { + addr16[i] = val; + } + + } while ( tmp[0] != 'q' ); + + printf("Unmapping\n"); + munmap(addr, OBJECT_SIZE); + + printf("Removing FB\n"); + drmModeRmFB(fd, fb_id); + + close(fd); + + return 0; +} |