682 lines
22 KiB
C
682 lines
22 KiB
C
/*
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* Copyright 2008 Vincent Sanders <vince@simtec.co.uk>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <signal.h>
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#include <sys/types.h>
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#include <inttypes.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <termios.h>
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#include <errno.h>
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#include <setjmp.h>
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#include <sys/ioctl.h>
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#include <sys/mman.h>
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#include <sys/wait.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <fnmatch.h>
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#include <linux/kd.h>
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#include <linux/vt.h>
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#include <linux/fb.h>
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#include <linux/input.h>
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#include "css/css.h"
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#include "desktop/browser.h"
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#include "desktop/gui.h"
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#include "framebuffer/fb_gui.h"
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#include "framebuffer/fb_plotters.h"
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#include "framebuffer/fb_schedule.h"
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#include "framebuffer/fb_cursor.h"
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#include "framebuffer/fb_frontend.h"
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#include "framebuffer/fb_options.h"
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#include "utils/log.h"
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#include "utils/messages.h"
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#define FB_ACTIVE 0
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#define FB_REL_REQ 1
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#define FB_INACTIVE 2
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#define FB_ACQ_REQ 3
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struct fb_fix_screeninfo fb_fix;
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struct fb_var_screeninfo fb_var;
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unsigned char *fb_mem;
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int fb_mem_offset = 0;
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int fb_switch_state = FB_ACTIVE;
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static int fb,tty;
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static int orig_vt_no = 0;
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static struct vt_mode vt_mode;
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static int kd_mode;
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static struct vt_mode vt_omode;
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static struct termios term;
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static struct fb_var_screeninfo fb_ovar;
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static unsigned short ored[256], ogreen[256], oblue[256], otransp[256];
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static struct fb_cmap ocmap = { 0, 256, ored, ogreen, oblue, otransp };
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typedef struct _input_dev {
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struct _input_dev *next;
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int fd;
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} fb_input_dev;
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static fb_input_dev *inputdevs = 0;
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/* -------------------------------------------------------------------- */
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/* devices */
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struct DEVS {
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const char *fb0;
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const char *fbnr;
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const char *ttynr;
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};
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struct DEVS devs_default = {
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.fb0 = "/dev/fb0",
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.fbnr = "/dev/fb%d",
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.ttynr = "/dev/tty%d",
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};
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struct DEVS devs_devfs = {
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.fb0 = "/dev/fb/0",
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.fbnr = "/dev/fb/%d",
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.ttynr = "/dev/vc/%d",
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};
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struct DEVS *devices;
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static void dev_init(void)
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{
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struct stat dummy;
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if (NULL != devices)
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return;
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if (0 == stat("/dev/.devfsd",&dummy))
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devices = &devs_devfs;
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else
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devices = &devs_default;
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}
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static char *
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fconcat(const char *base, const char *leaf)
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{
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static char buffer[PATH_MAX];
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snprintf(buffer, PATH_MAX, "%s/%s", base, leaf);
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return buffer;
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}
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/* Input device opening */
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static void
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fb_open_input_devices(void)
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{
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DIR *dir;
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fb_input_dev *d;
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struct dirent *de;
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const char *basepath = option_fb_input_devpath ? option_fb_input_devpath : "/dev/input";
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dir = opendir(basepath);
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if (dir == NULL)
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return;
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while ((de = readdir(dir)) != NULL) {
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if (fnmatch(option_fb_input_glob ? option_fb_input_glob : "event*",
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de->d_name, 0) == 0) {
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char *cc = fconcat(basepath, de->d_name);
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int fd = open(cc, O_RDONLY | O_NONBLOCK);
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if (fd >= 0) {
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d = calloc(1, sizeof(fb_input_dev));
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d->next = inputdevs;
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inputdevs = d;
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d->fd = fd;
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}
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}
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}
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closedir(dir);
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}
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/* -------------------------------------------------------------------- */
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/* console switching */
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static void
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fb_switch_signal(int signal)
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{
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if (signal == SIGUSR1) {
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/* release */
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fb_switch_state = FB_REL_REQ;
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}
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if (signal == SIGUSR2) {
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/* acquisition */
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fb_switch_state = FB_ACQ_REQ;
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}
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}
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static int
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fb_switch_init(void)
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{
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struct sigaction act,old;
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memset(&act,0,sizeof(act));
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act.sa_handler = fb_switch_signal;
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sigemptyset(&act.sa_mask);
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sigaction(SIGUSR1,&act,&old);
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sigaction(SIGUSR2,&act,&old);
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if (-1 == ioctl(tty,VT_GETMODE, &vt_mode)) {
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perror("ioctl VT_GETMODE");
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exit(1);
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}
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vt_mode.mode = VT_PROCESS;
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vt_mode.waitv = 0;
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vt_mode.relsig = SIGUSR1;
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vt_mode.acqsig = SIGUSR2;
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if (-1 == ioctl(tty,VT_SETMODE, &vt_mode)) {
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perror("ioctl VT_SETMODE");
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exit(1);
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}
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return 0;
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}
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/* -------------------------------------------------------------------- */
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/* initialisation & cleanup */
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static void
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fb_memset (void *addr, int c, size_t len)
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{
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#if 1 /* defined(__powerpc__) */
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unsigned int i, *p;
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i = (c & 0xff) << 8;
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i |= i << 16;
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len >>= 2;
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for (p = addr; len--; p++)
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*p = i;
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#else
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memset(addr, c, len);
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#endif
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}
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static int
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fb_setmode(const char *name, int bpp)
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{
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FILE *fp;
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char line[80],label[32],value[16];
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int geometry=0, timings=0;
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/* load current values */
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if (ioctl(fb,FBIOGET_VSCREENINFO,&fb_var) == -1) {
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perror("ioctl FBIOGET_VSCREENINFO");
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exit(1);
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}
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if (name == NULL)
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return -1;
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if ((fp = fopen("/etc/fb.modes","r")) == NULL)
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return -1;
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while (NULL != fgets(line,79,fp)) {
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if (1 == sscanf(line, "mode \"%31[^\"]\"",label) &&
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0 == strcmp(label,name)) {
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/* fill in new values */
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fb_var.sync = 0;
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fb_var.vmode = 0;
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while (NULL != fgets(line,79,fp) &&
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NULL == strstr(line,"endmode")) {
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if (5 == sscanf(line," geometry %d %d %d %d %d",
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&fb_var.xres,&fb_var.yres,
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&fb_var.xres_virtual,&fb_var.yres_virtual,
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&fb_var.bits_per_pixel))
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geometry = 1;
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if (7 == sscanf(line," timings %d %d %d %d %d %d %d",
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&fb_var.pixclock,
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&fb_var.left_margin, &fb_var.right_margin,
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&fb_var.upper_margin, &fb_var.lower_margin,
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&fb_var.hsync_len, &fb_var.vsync_len))
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timings = 1;
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if (1 == sscanf(line, " hsync %15s",value) &&
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0 == strcasecmp(value,"high"))
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fb_var.sync |= FB_SYNC_HOR_HIGH_ACT;
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if (1 == sscanf(line, " vsync %15s",value) &&
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0 == strcasecmp(value,"high"))
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fb_var.sync |= FB_SYNC_VERT_HIGH_ACT;
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if (1 == sscanf(line, " csync %15s",value) &&
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0 == strcasecmp(value,"high"))
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fb_var.sync |= FB_SYNC_COMP_HIGH_ACT;
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if (1 == sscanf(line, " extsync %15s",value) &&
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0 == strcasecmp(value,"true"))
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fb_var.sync |= FB_SYNC_EXT;
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if (1 == sscanf(line, " laced %15s",value) &&
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0 == strcasecmp(value,"true"))
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fb_var.vmode |= FB_VMODE_INTERLACED;
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if (1 == sscanf(line, " double %15s",value) &&
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0 == strcasecmp(value,"true"))
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fb_var.vmode |= FB_VMODE_DOUBLE;
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}
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/* ok ? */
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if (!geometry || !timings)
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return -1;
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if (bpp != 0)
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fb_var.bits_per_pixel = bpp;
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/* set */
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fb_var.xoffset = 0;
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fb_var.yoffset = 0;
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if (-1 == ioctl(fb,FBIOPUT_VSCREENINFO,&fb_var))
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perror("ioctl FBIOPUT_VSCREENINFO");
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/* look what we have now ... */
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if (-1 == ioctl(fb,FBIOGET_VSCREENINFO,&fb_var)) {
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perror("ioctl FBIOGET_VSCREENINFO");
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exit(1);
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}
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return 0;
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}
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}
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return -1;
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}
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static void
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fb_setvt(int vtno)
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{
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struct vt_stat vts;
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char vtname[12];
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if (vtno < 0) {
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if (-1 == ioctl(tty,VT_OPENQRY, &vtno) || vtno == -1) {
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perror("ioctl VT_OPENQRY");
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exit(1);
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}
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}
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vtno &= 0xff;
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sprintf(vtname, devices->ttynr, vtno);
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chown(vtname, getuid(), getgid());
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if (-1 == access(vtname, R_OK | W_OK)) {
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fprintf(stderr,"access %s: %s\n",vtname,strerror(errno));
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exit(1);
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}
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/* switch (fork()) {
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case 0:
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break;
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case -1:
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perror("fork");
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exit(1);
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default:
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exit(0);
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}
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close(tty);
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close(0);
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close(1);
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close(2);
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setsid();
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open(vtname,O_RDWR);
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dup(0);
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dup(0);
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*/
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tty = open(vtname,O_RDWR);
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if (-1 == ioctl(tty,VT_GETSTATE, &vts)) {
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perror("ioctl VT_GETSTATE");
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exit(1);
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}
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orig_vt_no = vts.v_active;
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if (-1 == ioctl(tty,VT_ACTIVATE, vtno)) {
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perror("ioctl VT_ACTIVATE");
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exit(1);
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}
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if (-1 == ioctl(tty,VT_WAITACTIVE, vtno)) {
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perror("ioctl VT_WAITACTIVE");
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exit(1);
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}
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}
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/* Hmm. radeonfb needs this. matroxfb doesn't. */
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static int
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fb_activate_current(int tty)
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{
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struct vt_stat vts;
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if (-1 == ioctl(tty,VT_GETSTATE, &vts)) {
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perror("ioctl VT_GETSTATE");
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return -1;
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}
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if (-1 == ioctl(tty,VT_ACTIVATE, vts.v_active)) {
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perror("ioctl VT_ACTIVATE");
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return -1;
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}
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if (-1 == ioctl(tty,VT_WAITACTIVE, vts.v_active)) {
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perror("ioctl VT_WAITACTIVE");
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return -1;
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}
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return 0;
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}
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static void
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fb_cleanup(void)
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{
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/* restore console */
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if (-1 == ioctl(fb,FBIOPUT_VSCREENINFO,&fb_ovar))
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perror("ioctl FBIOPUT_VSCREENINFO");
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if (-1 == ioctl(fb,FBIOGET_FSCREENINFO,&fb_fix))
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perror("ioctl FBIOGET_FSCREENINFO");
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if (fb_ovar.bits_per_pixel == 8 ||
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fb_fix.visual == FB_VISUAL_DIRECTCOLOR) {
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if (-1 == ioctl(fb,FBIOPUTCMAP,&ocmap))
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perror("ioctl FBIOPUTCMAP");
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}
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close(fb);
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if (-1 == ioctl(tty,KDSETMODE, kd_mode))
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perror("ioctl KDSETMODE");
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if (-1 == ioctl(tty,VT_SETMODE, &vt_omode))
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perror("ioctl VT_SETMODE");
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if (orig_vt_no && -1 == ioctl(tty, VT_ACTIVATE, orig_vt_no))
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perror("ioctl VT_ACTIVATE");
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if (orig_vt_no && -1 == ioctl(tty, VT_WAITACTIVE, orig_vt_no))
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perror("ioctl VT_WAITACTIVE");
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tcsetattr(tty, TCSANOW, &term);
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close(tty);
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}
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static int
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fb_init(const char *device, const char *mode, int bpp, int vt)
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{
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char fbdev[16];
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struct vt_stat vts;
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long pm = ~(sysconf(_SC_PAGESIZE) - 1);
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dev_init();
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tty = 0;
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if (vt != 0)
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fb_setvt(vt);
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if (-1 == ioctl(tty,VT_GETSTATE, &vts)) {
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fprintf(stderr,"ioctl VT_GETSTATE: %s (not a linux console?)\n",
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strerror(errno));
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exit(1);
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}
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if (device == NULL) {
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device = getenv("FRAMEBUFFER");
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if (device == NULL) {
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struct fb_con2fbmap c2m;
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if (-1 == (fb = open(devices->fb0,O_RDWR /* O_WRONLY */,0))) {
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fprintf(stderr,"open %s: %s\n",devices->fb0,strerror(errno));
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exit(1);
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}
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c2m.console = vts.v_active;
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if (-1 == ioctl(fb, FBIOGET_CON2FBMAP, &c2m)) {
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perror("ioctl FBIOGET_CON2FBMAP");
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exit(1);
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}
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close(fb);
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fprintf(stderr,"map: vt%02d => fb%d\n",
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c2m.console,c2m.framebuffer);
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sprintf(fbdev,devices->fbnr,c2m.framebuffer);
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device = fbdev;
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}
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}
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/* get current settings (which we have to restore) */
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if (-1 == (fb = open(device,O_RDWR /* O_WRONLY */))) {
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fprintf(stderr,"open %s: %s\n",device,strerror(errno));
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exit(1);
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}
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if (-1 == ioctl(fb,FBIOGET_VSCREENINFO,&fb_ovar)) {
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perror("ioctl FBIOGET_VSCREENINFO");
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exit(1);
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}
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if (-1 == ioctl(fb,FBIOGET_FSCREENINFO,&fb_fix)) {
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perror("ioctl FBIOGET_FSCREENINFO");
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exit(1);
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}
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if (fb_ovar.bits_per_pixel == 8 ||
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fb_fix.visual == FB_VISUAL_DIRECTCOLOR) {
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if (-1 == ioctl(fb,FBIOGETCMAP,&ocmap)) {
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perror("ioctl FBIOGETCMAP");
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exit(1);
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}
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}
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if (-1 == ioctl(tty,KDGETMODE, &kd_mode)) {
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perror("ioctl KDGETMODE");
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exit(1);
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}
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if (-1 == ioctl(tty,VT_GETMODE, &vt_omode)) {
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perror("ioctl VT_GETMODE");
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exit(1);
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}
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tcgetattr(tty, &term);
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/* switch mode */
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fb_setmode(mode, bpp);
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/* checks & initialisation */
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if (-1 == ioctl(fb,FBIOGET_FSCREENINFO,&fb_fix)) {
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perror("ioctl FBIOGET_FSCREENINFO");
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exit(1);
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}
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if (fb_fix.type != FB_TYPE_PACKED_PIXELS) {
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fprintf(stderr,"can handle only packed pixel frame buffers\n");
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goto err;
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}
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fb_mem_offset = (unsigned long)(fb_fix.smem_start) & (~pm);
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fb_mem = mmap(NULL,fb_fix.smem_len+fb_mem_offset,
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PROT_READ|PROT_WRITE,MAP_SHARED,fb,0);
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if (-1L == (long)fb_mem) {
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perror("mmap");
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goto err;
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}
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/* move viewport to upper left corner */
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if (fb_var.xoffset != 0 || fb_var.yoffset != 0) {
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fb_var.xoffset = 0;
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fb_var.yoffset = 0;
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if (-1 == ioctl(fb,FBIOPAN_DISPLAY,&fb_var)) {
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perror("ioctl FBIOPAN_DISPLAY");
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goto err;
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}
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}
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if (-1 == ioctl(tty,KDSETMODE, KD_GRAPHICS)) {
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perror("ioctl KDSETMODE");
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goto err;
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}
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fb_activate_current(tty);
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/* cls */
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fb_memset(fb_mem + fb_mem_offset, 0, fb_fix.smem_len);
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return fb;
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err:
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fb_cleanup();
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exit(1);
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}
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/* -------------------------------------------------------------------- */
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/* handle fatal errors */
|
|
|
|
static jmp_buf fb_fatal_cleanup;
|
|
|
|
static void
|
|
fb_catch_exit_signal(int signal)
|
|
{
|
|
siglongjmp(fb_fatal_cleanup,signal);
|
|
}
|
|
|
|
static void
|
|
fb_catch_exit_signals(void)
|
|
{
|
|
struct sigaction act,old;
|
|
int termsig;
|
|
|
|
memset(&act,0,sizeof(act));
|
|
act.sa_handler = fb_catch_exit_signal;
|
|
sigemptyset(&act.sa_mask);
|
|
sigaction(SIGINT, &act,&old);
|
|
sigaction(SIGQUIT,&act,&old);
|
|
sigaction(SIGTERM,&act,&old);
|
|
|
|
sigaction(SIGABRT,&act,&old);
|
|
sigaction(SIGTSTP,&act,&old);
|
|
|
|
sigaction(SIGBUS, &act,&old);
|
|
sigaction(SIGILL, &act,&old);
|
|
sigaction(SIGSEGV,&act,&old);
|
|
|
|
if (0 == (termsig = sigsetjmp(fb_fatal_cleanup,0)))
|
|
return;
|
|
|
|
/* cleanup */
|
|
fb_cleanup();
|
|
fprintf(stderr,"Oops: %s\n",sys_siglist[termsig]);
|
|
exit(42);
|
|
}
|
|
|
|
framebuffer_t *fb_os_init(int argc, char** argv)
|
|
{
|
|
framebuffer_t *newfb;
|
|
int ploop;
|
|
|
|
fb_init(option_fb_device, option_fb_mode ? option_fb_mode : "800x600-70", 16, 1);
|
|
fb_switch_init();
|
|
fb_catch_exit_signals();
|
|
|
|
newfb = calloc(1, sizeof(framebuffer_t));
|
|
|
|
newfb->width = fb_var.xres;
|
|
newfb->height = fb_var.yres;
|
|
newfb->ptr = fb_mem;
|
|
newfb->linelen = fb_fix.line_length;
|
|
newfb->bpp = fb_var.bits_per_pixel;
|
|
|
|
if (newfb->bpp <= 8) {
|
|
for(ploop=0; ploop < 256; ploop++) {
|
|
newfb->palette[ploop] = 0xFF000000 |
|
|
ocmap.blue[ploop] << 16 |
|
|
ocmap.green[ploop] << 8 |
|
|
ocmap.red[ploop] ;
|
|
}
|
|
}
|
|
|
|
|
|
fb_open_input_devices();
|
|
|
|
return newfb;
|
|
}
|
|
|
|
void fb_os_quit(framebuffer_t *fb)
|
|
{
|
|
fb_cleanup();
|
|
}
|
|
|
|
void fb_os_input(struct gui_window *g)
|
|
{
|
|
ssize_t amt;
|
|
struct input_event event;
|
|
fb_input_dev *d;
|
|
|
|
for (d = inputdevs; d != NULL; d = d->next) {
|
|
amt = read(d->fd, &event, sizeof(struct input_event));
|
|
|
|
if (amt > 0) {
|
|
if (event.type == EV_KEY) {
|
|
if (event.value == 0)
|
|
return;
|
|
|
|
switch (event.code) {
|
|
case KEY_J:
|
|
fb_window_scroll(g, 0, 100);
|
|
break;
|
|
|
|
case KEY_K:
|
|
fb_window_scroll(g, 0, -100);
|
|
break;
|
|
|
|
case KEY_Q:
|
|
browser_window_destroy(g->bw);
|
|
break;
|
|
|
|
case KEY_D:
|
|
list_schedule();
|
|
break;
|
|
|
|
case KEY_UP:
|
|
fb_cursor_move(framebuffer, 0, -1);
|
|
break;
|
|
|
|
case KEY_DOWN:
|
|
fb_cursor_move(framebuffer, 0, 1);
|
|
break;
|
|
|
|
case KEY_LEFT:
|
|
fb_cursor_move(framebuffer, -1, 0);
|
|
break;
|
|
|
|
case KEY_RIGHT:
|
|
fb_cursor_move(framebuffer, 1, 0);
|
|
break;
|
|
case BTN_LEFT:
|
|
fb_cursor_click(framebuffer,
|
|
g,
|
|
BROWSER_MOUSE_CLICK_1);
|
|
break;
|
|
}
|
|
} else if (event.type == EV_REL) {
|
|
switch (event.code) {
|
|
case 0:
|
|
fb_cursor_move(framebuffer,
|
|
event.value,
|
|
0);
|
|
break;
|
|
|
|
case 1:
|
|
fb_cursor_move(framebuffer,
|
|
0,
|
|
event.value);
|
|
break;
|
|
|
|
case 8:
|
|
fb_window_scroll(g, 0, event.value * -100);
|
|
break;
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
fb_os_option_override(void)
|
|
{
|
|
}
|
|
|
|
|
|
/*
|
|
* Local Variables:
|
|
* c-basic-offset:8
|
|
* End:
|
|
*/
|
|
|