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/*
* Copyright © 2009 Jerome Glisse <glisse@freedesktop.org>
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License
* as published by the Free Software Foundation.
*
* 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, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include <string.h>
#include <strings.h>
#include <errno.h>
#include "xf86drm.h"
#include "radeon_drm.h"
#include "r600_winsys.h"
#include "radeon.h"
#include "radeon_bo.h"
const char *connector_status(drmModeConnector *connector)
{
switch (connector->connection) {
case DRM_MODE_CONNECTED:
return "connected";
case DRM_MODE_DISCONNECTED:
return "disconnected";
}
return "unknown";
}
int radeon_mode_configure(struct radeon *radeon)
{
struct radeon_mode *mode = &radeon->mode;
drmModeRes *resources;
drmModeConnector *connector;
drmModeEncoder *encoder;
u32 connector_id;
int r;
r = drmSetMaster(radeon->fd);
if (r) {
fprintf(stderr, "Failed to set master\n");
perror(NULL);
}
mode->bo = NULL;
mode->fb_id = 0;
resources = drmModeGetResources(radeon->fd);
if (resources == NULL) {
fprintf(stderr, "Failed to get resources from card\n");
return -EINVAL;
}
/* Iterates through connector an pick first one with a valid mode */
printf("%d connectors\n", resources->count_connectors);
for (int i = 0; i < resources->count_connectors; i++) {
connector = drmModeGetConnector(radeon->fd, resources->connectors[i]);
if (connector == NULL) {
fprintf(stderr, "Could not get connector %i\n",
resources->connectors[i]);
r = -EINVAL;
goto out;
}
printf("connector(%d) %s to encoder(%d)\n", connector->connector_id,
connector_status(connector), connector->encoder_id);
for (int j = 0; j < connector->count_modes; j++) {
if (connector->modes[j].type & DRM_MODE_TYPE_PREFERRED) {
memcpy(&mode->info, &connector->modes[j],
sizeof(drmModeModeInfo));
mode->connector_id = connector->connector_id;
mode->encoder_id = connector->encoder_id;
drmModeFreeConnector(connector);
goto setmode;
}
}
drmModeFreeConnector(connector);
}
fprintf(stderr, "No modes found !\n");
r = -EINVAL;
goto out;
setmode:
/* Find crtc id */
encoder = drmModeGetEncoder(radeon->fd, mode->encoder_id);
if (encoder == NULL) {
fprintf(stderr, "Could not get encoder %i\n", mode->encoder_id);
r = -EINVAL;
goto out;
}
mode->crtc_id = resources->crtcs[ffs(encoder->possible_crtcs)-1];
drmModeFreeEncoder(encoder);
/* Allocate buffer */
mode->bpp = 4;
mode->height = mode->info.vdisplay;
mode->pitch = mode->info.hdisplay * mode->bpp;
mode->size = mode->pitch * mode->info.vdisplay;
mode->bo = radeon_bo_open(radeon->bom, 0, mode->size, 0,
RADEON_GEM_DOMAIN_VRAM, 0);
if (mode->bo == NULL) {
fprintf(stderr, "failed to create fb: %s\n", strerror(errno));
goto out;
}
r = drmModeAddFB(radeon->fd, mode->info.hdisplay, mode->info.vdisplay,
32, 32, mode->pitch, mode->bo->handle, &mode->fb_id);
if (r) {
fprintf(stderr, "failed to add fb: %s 0x%08X\n", strerror(errno), mode->bo->handle);
goto out;
}
printf("Mode: %dx%d %dbpp on CRTC(%d) connector(%d)\n", mode->info.hdisplay,
mode->info.vdisplay, mode->bpp*8, mode->crtc_id,
mode->connector_id);
connector_id = mode->connector_id;
r = drmModeSetCrtc(radeon->fd, mode->crtc_id, mode->fb_id, 0, 0,
&connector_id, 1, &mode->info);
if (r) {
fprintf(stderr, "failed to set mode: %s\n", strerror(errno));
goto out;
}
if (connector_id != mode->connector_id) {
fprintf(stderr, "Set mode on different connector %d, expected %d\n",
connector_id, mode->connector_id);
}
out:
if (r && mode->fb_id) {
drmModeRmFB(radeon->fd, mode->fb_id);
mode->fb_id = 0;
}
if (r && mode->bo) {
mode->bo = radeon_bo_unref(mode->bo);
}
drmModeFreeResources(resources);
return r;
}
void radeon_mode_cleanup(struct radeon *radeon)
{
if (radeon->mode.fb_id) {
drmModeRmFB(radeon->fd, radeon->mode.fb_id);
radeon->mode.fb_id = 0;
}
if (radeon->mode.bo) {
radeon_bo_unmap(radeon->mode.bo);
radeon->mode.bo = radeon_bo_unref(radeon->mode.bo);
}
drmDropMaster(radeon->fd);
}
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