2 * (C) GraÅžvydas "notaz" Ignotas, 2010
4 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
5 * See the COPYING file in the top-level directory.
13 #include <sys/types.h>
16 #include <sys/ioctl.h>
22 #include "linux/fbdev.h"
23 #include "linux/oshide.h"
25 struct omapfb_saved_layer {
26 struct omapfb_plane_info pi;
27 struct omapfb_mem_info mi;
30 static int osdl_setup_omapfb(int fd, int enabled, int x, int y, int w, int h, int mem)
32 struct omapfb_plane_info pi;
33 struct omapfb_mem_info mi;
36 ret = ioctl(fd, OMAPFB_QUERY_PLANE, &pi);
38 perror("QUERY_PLANE");
42 ret = ioctl(fd, OMAPFB_QUERY_MEM, &mi);
48 /* must disable when changing stuff */
51 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
53 perror("SETUP_PLANE");
57 ret = ioctl(fd, OMAPFB_SETUP_MEM, &mi);
69 ret = ioctl(fd, OMAPFB_SETUP_PLANE, &pi);
71 perror("SETUP_PLANE");
78 static int read_sysfs(const char *fname, char *buff, size_t size)
83 f = fopen(fname, "r");
85 fprintf(stderr, "open %s: ", fname);
90 ret = fread(buff, 1, size - 1, f);
93 fprintf(stderr, "read %s: ", fname);
99 for (ret--; ret >= 0 && isspace(buff[ret]); ret--)
105 static int osdl_setup_omap_layer(struct SDL_PrivateVideoData *pdata,
106 const char *fbname, int width, int height, int bpp)
108 int x = 0, y = 0, w = width, h = height; /* layer size and pos */
109 int screen_w = w, screen_h = h;
110 int fb_id, overlay_id = -1, screen_id = -1;
111 char buff[64], screen_name[64];
117 fd = open(fbname, O_RDWR);
119 fprintf(stderr, "open %s: ", fbname);
124 /* FIXME: assuming layer doesn't change here */
125 if (pdata->saved_layer == NULL) {
126 struct omapfb_saved_layer *slayer;
127 slayer = calloc(1, sizeof(*slayer));
131 ret = ioctl(fd, OMAPFB_QUERY_PLANE, &slayer->pi);
133 perror("QUERY_PLANE");
137 ret = ioctl(fd, OMAPFB_QUERY_MEM, &slayer->mi);
143 pdata->saved_layer = slayer;
146 /* Figure out screen resolution, we will want to center if scaling is not enabled.
147 * The only way to achieve this seems to be walking some sysfs files.. */
148 ret = stat(fbname, &status);
150 fprintf(stderr, "can't stat %s: ", fbname);
154 fb_id = minor(status.st_rdev);
156 snprintf(buff, sizeof(buff), "/sys/class/graphics/fb%d/overlays", fb_id);
157 f = fopen(buff, "r");
159 fprintf(stderr, "can't open %s, skip screen detection\n", buff);
163 ret = fscanf(f, "%d", &overlay_id);
166 fprintf(stderr, "can't parse %s, skip screen detection\n", buff);
170 snprintf(buff, sizeof(buff), "/sys/devices/platform/omapdss/overlay%d/manager", overlay_id);
171 ret = read_sysfs(buff, screen_name, sizeof(screen_name));
173 fprintf(stderr, "skip screen detection\n");
178 snprintf(buff, sizeof(buff), "/sys/devices/platform/omapdss/display%d/name", i);
179 ret = read_sysfs(buff, buff, sizeof(buff));
183 if (strcmp(screen_name, buff) == 0) {
190 fprintf(stderr, "could not find screen\n");
194 snprintf(buff, sizeof(buff), "/sys/devices/platform/omapdss/display%d/timings", screen_id);
195 f = fopen(buff, "r");
197 fprintf(stderr, "can't open %s, skip screen detection\n", buff);
201 ret = fscanf(f, "%*d,%d/%*d/%*d/%*d,%d/%*d/%*d/%*d", &screen_w, &screen_h);
204 fprintf(stderr, "can't parse %s (%d), skip screen detection\n", buff, ret);
208 printf("detected %dx%d '%s' (%d) screen attached to fb %d and overlay %d\n",
209 screen_w, screen_h, screen_name, screen_id, fb_id, overlay_id);
212 tmp = getenv("SDL_OMAP_LAYER_SIZE");
215 if (strcasecmp(tmp, "fullscreen") == 0)
216 w = screen_w, h = screen_h;
217 else if (sscanf(tmp, "%dx%d", &w_, &h_) == 2)
220 fprintf(stderr, "layer size specified incorrectly, "
221 "should be like 800x480");
224 x = screen_w / 2 - w / 2;
225 y = screen_h / 2 - h / 2;
226 ret = osdl_setup_omapfb(fd, 1, x, y, w, h, width * height * ((bpp + 7) / 8) * 3);
232 int osdl_video_set_mode(struct SDL_PrivateVideoData *pdata, int width, int height, int bpp)
239 fbname = getenv("SDL_FBDEV");
243 if (pdata->fbdev != NULL) {
244 vout_fbdev_finish(pdata->fbdev);
248 omapsdl_config_from_env();
250 ret = osdl_setup_omap_layer(pdata, fbname, width, height, bpp);
254 pdata->fbdev = vout_fbdev_init(fbname, &width, &height, 0);
255 if (pdata->fbdev == NULL)
258 if (!pdata->oshide_done) {
260 pdata->oshide_done = 1;
266 void *osdl_video_flip(struct SDL_PrivateVideoData *pdata)
268 if (pdata->fbdev == NULL)
271 if (gcfg_force_vsync)
272 vout_fbdev_wait_vsync(pdata->fbdev);
274 return vout_fbdev_flip(pdata->fbdev);
277 void osdl_video_finish(struct SDL_PrivateVideoData *pdata)
279 static const char *fbname;
281 fbname = getenv("SDL_FBDEV");
285 if (pdata->fbdev != NULL) {
286 vout_fbdev_finish(pdata->fbdev);
290 /* restore the OMAP layer */
291 if (pdata->saved_layer != NULL) {
292 struct omapfb_saved_layer *slayer = pdata->saved_layer;
295 fd = open(fbname, O_RDWR);
297 int enabled = slayer->pi.enabled;
299 /* be sure to disable while setting up */
300 slayer->pi.enabled = 0;
301 ioctl(fd, OMAPFB_SETUP_PLANE, &slayer->pi);
302 ioctl(fd, OMAPFB_SETUP_MEM, &slayer->mi);
304 slayer->pi.enabled = enabled;
305 ioctl(fd, OMAPFB_SETUP_PLANE, &slayer->pi);
310 pdata->saved_layer = NULL;
313 if (pdata->oshide_done) {
315 pdata->oshide_done = 0;