diff options
Diffstat (limited to 'legacy/busybox/0005-fbsplash-support-console-switching.patch')
| -rw-r--r-- | legacy/busybox/0005-fbsplash-support-console-switching.patch | 187 |
1 files changed, 0 insertions, 187 deletions
diff --git a/legacy/busybox/0005-fbsplash-support-console-switching.patch b/legacy/busybox/0005-fbsplash-support-console-switching.patch deleted file mode 100644 index 792c2d6c8..000000000 --- a/legacy/busybox/0005-fbsplash-support-console-switching.patch +++ /dev/null @@ -1,187 +0,0 @@ -From a8f7d33f47cc28732cd04573ae1fb6a1ca6e9617 Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi> -Date: Mon, 24 Sep 2012 07:58:29 +0300 -Subject: [PATCH 05/11] fbsplash: support console switching -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -Signed-off-by: Timo Teräs <timo.teras@iki.fi> ---- - miscutils/fbsplash.c | 83 +++++++++++++++++++++++++++++++++++++++++++++++----- - 1 file changed, 76 insertions(+), 7 deletions(-) - -diff --git a/miscutils/fbsplash.c b/miscutils/fbsplash.c -index fc6c9b953..ec5947314 100644 ---- a/miscutils/fbsplash.c -+++ b/miscutils/fbsplash.c -@@ -47,7 +47,7 @@ - //kbuild:lib-$(CONFIG_FBSPLASH) += fbsplash.o - - //usage:#define fbsplash_trivial_usage --//usage: "-s IMGFILE [-c] [-d DEV] [-i INIFILE] [-f CMD]" -+//usage: "-s IMGFILE [-c] [-d DEV] [-i INIFILE] [-f CMD] [-T tty]" - //usage:#define fbsplash_full_usage "\n\n" - //usage: " -s Image" - //usage: "\n -c Hide cursor" -@@ -57,11 +57,17 @@ - //usage: "\n BAR_R,BAR_G,BAR_B" - //usage: "\n -f Control pipe (else exit after drawing image)" - //usage: "\n commands: 'NN' (% for progress bar) or 'exit'" -+//usage: "\n -T Switch to TTY to hide all console messages" - - #include "libbb.h" - #include "common_bufsiz.h" - #include <linux/fb.h> - -+#include <sys/vt.h> -+#include <sys/ioctl.h> -+#include <linux/tiocl.h> -+#include <linux/kd.h> -+ - /* If you want logging messages on /tmp/fbsplash.log... */ - #define DEBUG 0 - -@@ -73,6 +79,8 @@ struct globals { - unsigned char *addr; // pointer to framebuffer memory - unsigned ns[7]; // n-parameters - const char *image_filename; -+ int silent_tty, fd_tty_s; -+ bool do_not_draw; - struct fb_var_screeninfo scr_var; - struct fb_fix_screeninfo scr_fix; - unsigned bytes_per_pixel; -@@ -483,6 +491,11 @@ static void init(const char *cfg_filename) - config_close(parser); - } - -+static void sighandler(int sig) -+{ -+ ioctl(G.fd_tty_s, VT_RELDISP, sig == SIGUSR1 ? 1 : 2); -+ G.do_not_draw = (sig != SIGUSR2); -+} - - int fbsplash_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE; - int fbsplash_main(int argc UNUSED_PARAM, char **argv) -@@ -492,6 +505,9 @@ int fbsplash_main(int argc UNUSED_PARAM, char **argv) - char *num_buf; - unsigned num; - bool bCursorOff; -+ int fd_tty0, active_vt; -+ struct vt_stat vtstat; -+ struct vt_mode vt; - - INIT_G(); - -@@ -499,8 +515,10 @@ int fbsplash_main(int argc UNUSED_PARAM, char **argv) - fb_device = "/dev/fb0"; - cfg_filename = NULL; - fifo_filename = NULL; -- bCursorOff = 1 & getopt32(argv, "cs:d:i:f:", -- &G.image_filename, &fb_device, &cfg_filename, &fifo_filename); -+ opt_complementary = "T+"; // numeric params -+ bCursorOff = 1 & getopt32(argv, "cs:d:i:f:T:", -+ &G.image_filename, &fb_device, &cfg_filename, &fifo_filename, -+ &G.silent_tty); - - // parse configuration file - if (cfg_filename) -@@ -510,11 +528,43 @@ int fbsplash_main(int argc UNUSED_PARAM, char **argv) - if (!G.image_filename) - bb_show_usage(); - -+ fd_tty0 = get_console_fd_or_die(); -+ if (G.silent_tty) { -+ char buf[16]; -+ -+ /* Initialize TTY */ -+ bb_signals((1LL << SIGUSR1) | (1LL << SIGUSR2), sighandler); -+ snprintf(buf, sizeof(buf), "/dev/tty%d", G.silent_tty); -+ G.fd_tty_s = xopen(buf, O_RDWR | O_NOCTTY); -+ -+ /* Activate TTY */ -+ xioctl(fd_tty0, VT_GETSTATE, &vtstat); -+ active_vt = vtstat.v_active; -+ console_make_active(fd_tty0, G.silent_tty); -+ -+ /* Get notifications on console changes */ -+ vt.mode = VT_PROCESS; -+ vt.waitv = 0; -+ vt.relsig = SIGUSR1; -+ vt.acqsig = SIGUSR2; -+ ioctl(G.fd_tty_s, VT_SETMODE, &vt); -+ -+ /* Redirect all kernel messages to tty1 so that they don't get -+ * printed over our silent splash image. And clear it. */ -+ buf[0] = TIOCL_SETKMSGREDIRECT; -+ buf[1] = 1; -+ ioctl(G.fd_tty_s, TIOCLINUX, buf); -+ full_write(G.fd_tty_s, "\e[H\e[2J" "\e[?17;0c", 7+8); -+ ioctl(G.fd_tty_s, KDSETMODE, KD_GRAPHICS); -+ } else { -+ G.fd_tty_s = STDOUT_FILENO; -+ } -+ - fb_open(fb_device); - - if (fifo_filename && bCursorOff) { - // hide cursor (BEFORE any fb ops) -- full_write(STDOUT_FILENO, "\033[?25l", 6); -+ full_write(G.fd_tty_s, "\033[?25l", 6); - } - - fb_drawimage(); -@@ -522,6 +572,7 @@ int fbsplash_main(int argc UNUSED_PARAM, char **argv) - if (!fifo_filename) - return EXIT_SUCCESS; - -+ sig_block(SIGUSR1); - fp = xfopen_stdin(fifo_filename); - if (fp != stdin) { - // For named pipes, we want to support this: -@@ -537,8 +588,9 @@ int fbsplash_main(int argc UNUSED_PARAM, char **argv) - // and become an additional writer :) - open(fifo_filename, O_WRONLY); // errors are ignored - } -- - fb_drawprogressbar(0); -+ sig_unblock(SIGUSR1); -+ - // Block on read, waiting for some input. - // Use of <stdio.h> style I/O allows to correctly - // handle a case when we have many buffered lines -@@ -553,12 +605,29 @@ int fbsplash_main(int argc UNUSED_PARAM, char **argv) - #if DEBUG - DEBUG_MESSAGE(itoa(num)); - #endif -- fb_drawprogressbar(num); -+ sig_block(SIGUSR1); -+ if (!G.do_not_draw) -+ fb_drawprogressbar(num); -+ sig_unblock(SIGUSR1); - } - free(num_buf); - } - -- if (bCursorOff) // restore cursor -+ if (G.silent_tty) { -+ usleep(100*1000); -+ -+ ioctl(G.fd_tty_s, VT_RELDISP, 1); -+ ioctl(G.fd_tty_s, KDSETMODE, KD_TEXT); -+ vt.mode = VT_AUTO; -+ vt.waitv = 0; -+ ioctl(G.fd_tty_s, VT_SETMODE, &vt); -+ close(G.fd_tty_s); -+ -+ xioctl(fd_tty0, VT_GETSTATE, &vtstat); -+ if (vtstat.v_active == G.silent_tty) -+ console_make_active(fd_tty0, active_vt); -+ ioctl(fd_tty0, VT_DISALLOCATE, (void *)(ptrdiff_t)G.silent_tty); -+ } else if (bCursorOff) // restore cursor - full_write(STDOUT_FILENO, "\033[?25h", 6); - - return EXIT_SUCCESS; --- -2.13.2 - |