diff options
Diffstat (limited to 'minui')
| -rw-r--r-- | minui/events.c | 89 | ||||
| -rw-r--r-- | minui/graphics.c | 16 | ||||
| -rw-r--r-- | minui/minui.h | 20 |
3 files changed, 108 insertions, 17 deletions
diff --git a/minui/events.c b/minui/events.c index 3aed2a860..c533a482a 100644 --- a/minui/events.c +++ b/minui/events.c @@ -25,11 +25,23 @@ #include "minui.h" #define MAX_DEVICES 16 +#define MAX_MISC_FDS 16 + +#define test_bit(bit, array) ((array)[(bit)/8] & (1<<((bit)%8))) + +struct fd_info { + ev_callback cb; + void *data; +}; + +static struct pollfd ev_fds[MAX_DEVICES + MAX_MISC_FDS]; +static struct fd_info ev_fdinfo[MAX_DEVICES + MAX_MISC_FDS]; -static struct pollfd ev_fds[MAX_DEVICES]; static unsigned ev_count = 0; +static unsigned ev_dev_count = 0; +static unsigned ev_misc_count = 0; -int ev_init(void) +int ev_init(ev_callback input_cb, void *data) { DIR *dir; struct dirent *de; @@ -38,45 +50,92 @@ int ev_init(void) dir = opendir("/dev/input"); if(dir != 0) { while((de = readdir(dir))) { + uint8_t ev_bits[(EV_MAX + 1) / 8]; + // fprintf(stderr,"/dev/input/%s\n", de->d_name); if(strncmp(de->d_name,"event",5)) continue; fd = openat(dirfd(dir), de->d_name, O_RDONLY); if(fd < 0) continue; + /* read the evbits of the input device */ + if (ioctl(fd, EVIOCGBIT(0, sizeof(ev_bits)), ev_bits) < 0) { + close(fd); + continue; + } + + /* TODO: add ability to specify event masks. For now, just assume + * that only EV_KEY and EV_REL event types are ever needed. */ + if (!test_bit(EV_KEY, ev_bits) && !test_bit(EV_REL, ev_bits)) { + close(fd); + continue; + } + ev_fds[ev_count].fd = fd; ev_fds[ev_count].events = POLLIN; + ev_fdinfo[ev_count].cb = input_cb; + ev_fdinfo[ev_count].data = data; ev_count++; - if(ev_count == MAX_DEVICES) break; + ev_dev_count++; + if(ev_dev_count == MAX_DEVICES) break; } } return 0; } +int ev_add_fd(int fd, ev_callback cb, void *data) +{ + if (ev_misc_count == MAX_MISC_FDS || cb == NULL) + return -1; + + ev_fds[ev_count].fd = fd; + ev_fds[ev_count].events = POLLIN; + ev_fdinfo[ev_count].cb = cb; + ev_fdinfo[ev_count].data = data; + ev_count++; + ev_misc_count++; + return 0; +} + void ev_exit(void) { while (ev_count > 0) { close(ev_fds[--ev_count].fd); } + ev_misc_count = 0; + ev_dev_count = 0; } -int ev_get(struct input_event *ev, unsigned dont_wait) +int ev_wait(int timeout) { int r; + + r = poll(ev_fds, ev_count, timeout); + if (r <= 0) + return -1; + return 0; +} + +void ev_dispatch(void) +{ unsigned n; + int ret; - do { - r = poll(ev_fds, ev_count, dont_wait ? 0 : -1); + for (n = 0; n < ev_count; n++) { + ev_callback cb = ev_fdinfo[n].cb; + if (cb && (ev_fds[n].revents & ev_fds[n].events)) + cb(ev_fds[n].fd, ev_fds[n].revents, ev_fdinfo[n].data); + } +} - if(r > 0) { - for(n = 0; n < ev_count; n++) { - if(ev_fds[n].revents & POLLIN) { - r = read(ev_fds[n].fd, ev, sizeof(*ev)); - if(r == sizeof(*ev)) return 0; - } - } - } - } while(dont_wait == 0); +int ev_get_input(int fd, short revents, struct input_event *ev) +{ + int r; + if (revents & POLLIN) { + r = read(fd, ev, sizeof(*ev)); + if (r == sizeof(*ev)) + return 0; + } return -1; } diff --git a/minui/graphics.c b/minui/graphics.c index b79631a31..fa8e5109a 100644 --- a/minui/graphics.c +++ b/minui/graphics.c @@ -14,6 +14,7 @@ * limitations under the License. */ +#include <stdbool.h> #include <stdlib.h> #include <unistd.h> @@ -201,6 +202,12 @@ int gr_measure(const char *s) return gr_font->cwidth * strlen(s); } +void gr_font_size(int *x, int *y) +{ + *x = gr_font->cwidth; + *y = gr_font->cheight; +} + int gr_text(int x, int y, const char *s) { GGLContext *gl = gr_context; @@ -358,3 +365,12 @@ gr_pixel *gr_fb_data(void) { return (unsigned short *) gr_mem_surface.data; } + +void gr_fb_blank(bool blank) +{ + int ret; + + ret = ioctl(gr_fb_fd, FBIOBLANK, blank ? FB_BLANK_POWERDOWN : FB_BLANK_UNBLANK); + if (ret < 0) + perror("ioctl(): blank"); +} diff --git a/minui/minui.h b/minui/minui.h index 567d42157..cb1ed6588 100644 --- a/minui/minui.h +++ b/minui/minui.h @@ -17,6 +17,8 @@ #ifndef _MINUI_H_ #define _MINUI_H_ +#include <stdbool.h> + typedef void* gr_surface; typedef unsigned short gr_pixel; @@ -27,11 +29,13 @@ int gr_fb_width(void); int gr_fb_height(void); gr_pixel *gr_fb_data(void); void gr_flip(void); +void gr_fb_blank(bool blank); void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a); void gr_fill(int x, int y, int w, int h); int gr_text(int x, int y, const char *s); int gr_measure(const char *s); +void gr_font_size(int *x, int *y); void gr_blit(gr_surface source, int sx, int sy, int w, int h, int dx, int dy); unsigned int gr_get_width(gr_surface surface); @@ -41,9 +45,21 @@ unsigned int gr_get_height(gr_surface surface); // see http://www.mjmwired.net/kernel/Documentation/input/ for info. struct input_event; -int ev_init(void); +typedef int (*ev_callback)(int fd, short revents, void *data); + +int ev_init(ev_callback input_cb, void *data); void ev_exit(void); -int ev_get(struct input_event *ev, unsigned dont_wait); +int ev_add_fd(int fd, ev_callback cb, void *data); + +/* timeout has the same semantics as for poll + * 0 : don't block + * < 0 : block forever + * > 0 : block for 'timeout' milliseconds + */ +int ev_wait(int timeout); + +int ev_get_input(int fd, short revents, struct input_event *ev); +void ev_dispatch(void); // Resources |