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home:michael-chang:bsc:1224465
grub2
grub2-s390x-03-output-7-bit-ascii.patch
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File grub2-s390x-03-output-7-bit-ascii.patch of Package grub2
Vn: * recognize 'dev/sclp_line0' as 3215-look-alike. [bnc#876743] Vn+1: * revamp readkey_dumb(). Vn+2: * support hotkeys on all line-mode terminals, not only 3215. [bnc#885668] --- grub-core/kern/emu/main.c | 8 + grub-core/normal/menu_text.c | 54 +++++++- grub-core/normal/term.c | 2 grub-core/osdep/unix/emuconsole.c | 238 +++++++++++++++++++++++++++++++++++++- include/grub/term.h | 4 5 files changed, 294 insertions(+), 12 deletions(-) --- a/grub-core/osdep/unix/emuconsole.c +++ b/grub-core/osdep/unix/emuconsole.c @@ -39,17 +39,61 @@ #include <grub/emu/console.h> +#include <stdio.h> +#include <errno.h> + extern struct grub_terminfo_output_state grub_console_terminfo_output; static int original_fl; static int saved_orig; static struct termios orig_tty; static struct termios new_tty; +static int console_mode = 0; + +#define MAX_LEN 1023 +#if defined(__s390x__) +static int +dummy (void) +{ + return 0; +} +#endif +#if 0 +static char msg[MAX_LEN+1]; +static void +dprint (int len) +{ + if (len < 0) + return; + if (len > MAX_LEN) + len = MAX_LEN; + write (2, msg, len); +} +#define dprintf(fmt, vargs...) dprint(snprintf(msg, MAX_LEN, fmt, ## vargs)) +#else +#define dprintf(fmt, vargs...) {} +#endif static void -put (struct grub_term_output *term __attribute__ ((unused)), const int c) +put (struct grub_term_output *term, const int c) { char chr = c; ssize_t actual; + struct grub_terminfo_output_state *data + = (struct grub_terminfo_output_state *) term->data; + + if (term->flags & GRUB_TERM_DUMB) { + if (c == '\n') { + data->pos.y++; + data->pos.x = 0; + } else { + data->pos.x++; + } + if (0) { + if (c == ' ') chr = '_'; + if (c == GRUB_TERM_BACKSPACE) chr = '{'; + if (c == '\b') chr = '<'; + } + } actual = write (STDOUT_FILENO, &chr, 1); if (actual < 1) @@ -60,17 +104,152 @@ } static int -readkey (struct grub_term_input *term __attribute__ ((unused))) +readkey (struct grub_term_input *term) { grub_uint8_t c; ssize_t actual; + fd_set readfds; + struct timeval timeout; + int sel; + FD_SET (0, &readfds); + timeout.tv_sec = 0; + timeout.tv_usec = 500000; + if ((sel=select (1, &readfds, (fd_set *)0, (fd_set *)0, &timeout)) <= 0) + { + if (sel < 0 && errno == EINTR) + return 0x03; /* '^C' */ + return -1; + } + actual = read (STDIN_FILENO, &c, 1); if (actual > 0) return c; return -1; } +#define NO_KEY ((grub_uint8_t)-1) +static int +readkey_dumb (struct grub_term_input *term) +{ + grub_uint8_t c; + static grub_uint8_t p = NO_KEY; + + c = readkey (term); + if (c == NO_KEY) + return -1; + if ((p == '^' || p == '\n') && c == '\n') /* solitary '^' or '\n'? */ + { + c = p; /* use immediately! */ + p = '\n'; + } + else if ((c == '\n' || c == '^') && p != c) /* non-duplicate specials? */ + { + p = c; /* remember! */ + c = NO_KEY; + } + else if (p == '^') + { + if (c != '^') + c &= 0x1F; + p = NO_KEY; + } + else + p = c; + return c; +} + +static void +grub_dumb_putchar (struct grub_term_output *term, + const struct grub_unicode_glyph *c) +{ + unsigned i; + + /* For now, do not try to use a surrogate pair. */ + if (c->base > 0xffff) + put (term, '?'); + else + put (term, (c->base & 0xffff)); + + if (0) { + for (i = 0; i < c->ncomb; i++) + if (c->base < 0xffff) + put (term, grub_unicode_get_comb (c)[i].code); + } +} + +static struct grub_term_coordinate +grub_dumb_getxy (struct grub_term_output *term) +{ + struct grub_terminfo_output_state *data + = (struct grub_terminfo_output_state *) term->data; + + dprintf ("<%d,%d>", data->pos.x, data->pos.y); + return data->pos; +} + +static struct grub_term_coordinate +grub_dumb_getwh (struct grub_term_output *term) +{ + static int once = 0; + struct grub_terminfo_output_state *data + = (struct grub_terminfo_output_state *) term->data; + + if (!once++) + dprintf ("dumb_getwh: w=%d h=%d\n", data->size.x, data->size.y); + return data->size; +} + +static void +grub_dumb_gotoxy (struct grub_term_output *term, + struct grub_term_coordinate pos) +{ + struct grub_terminfo_output_state *data + = (struct grub_terminfo_output_state *) term->data; + + if (pos.x > grub_term_width (term) || pos.y > grub_term_height (term)) + { + grub_error (GRUB_ERR_BUG, "invalid point (%u,%u)", pos.x, pos.y); + return; + } + + dprintf("goto(%d,%d)", pos.x, pos.y); + if (pos.x > (grub_term_width (term) - 4)) { + dprintf (" really?"); + //return; + } + + if (data->gotoxy) + { + int i; + dprintf ("data-gotoxy"); + if (data->pos.y != pos.y) { + put (term, '\n'); + + for (i = 1; i < pos.x; i++ ) + put (term, ' '); + } + } + else + { + int i = 0; + if (data->pos.y != pos.y || data->pos.x > pos.x) { + if (data->pos.y >= pos.y) data->pos.y = pos.y - 1; + if (pos.y - data->pos.y > 3) data->pos.y = pos.y - 2; + dprintf (" <%dnl>+%d", (pos.y - data->pos.y), pos.x); + for (i = data->pos.y; i < pos.y; i++ ) + put (term, '\n'); + } + for (i = data->pos.x; i < pos.x; i++ ) + put (term, ' '); + dprintf ("#%d", i); + grub_dumb_getxy (term); + } + + dprintf ("\n"); + data->pos = pos; +} + static grub_err_t grub_console_init_input (struct grub_term_input *term) { @@ -105,7 +284,8 @@ grub_console_init_output (struct grub_term_output *term) { struct winsize size; - if (ioctl (STDOUT_FILENO, TIOCGWINSZ, &size) >= 0) + if (ioctl (STDOUT_FILENO, TIOCGWINSZ, &size) >= 0 && + size.ws_col > 0 && size.ws_row > 0) { grub_console_terminfo_output.size.x = size.ws_col; grub_console_terminfo_output.size.y = size.ws_row; @@ -115,6 +295,8 @@ grub_console_terminfo_output.size.x = 80; grub_console_terminfo_output.size.y = 24; } + if (console_mode == 3215) + grub_console_terminfo_output.size.x -= 1; grub_terminfo_output_init (term); @@ -161,24 +343,72 @@ void grub_console_init (void) { +#if ! defined(__s390x__) const char *cs = nl_langinfo (CODESET); if (cs && grub_strcasecmp (cs, "UTF-8")) grub_console_term_output.flags = GRUB_TERM_CODE_TYPE_UTF8_LOGICAL; else grub_console_term_output.flags = GRUB_TERM_CODE_TYPE_ASCII; +#else + char link[MAX_LEN+1]; + ssize_t len = readlink ("/proc/self/fd/0", link, MAX_LEN); + + if (len > 0) + link[len] = 0; + else + link[0] = 0; + if (grub_strncmp ("/dev/ttyS", link, 9) == 0 ) + console_mode = 3215; + else if (grub_strncmp ("/dev/3270/tty", link, 13) == 0 ) + console_mode = 3270; + else if (grub_strncmp ("/dev/sclp_line", link, 14) == 0 ) + console_mode = 3215; + grub_console_term_output.flags = GRUB_TERM_CODE_TYPE_ASCII; + switch (console_mode) + { + case 3215: + grub_console_term_output.flags |= GRUB_TERM_DUMB; + /* FALLTHROUGH */ + case 3270: + grub_console_term_output.flags |= GRUB_TERM_LINE; + grub_console_term_output.flags |= GRUB_TERM_NO_ECHO; + grub_console_terminfo_input.readkey = readkey_dumb; + break; + default: + break; + } +#endif + if (grub_console_term_output.flags & GRUB_TERM_DUMB) + { + grub_console_term_output.putchar = grub_dumb_putchar, + grub_console_term_output.getxy = grub_dumb_getxy; + grub_console_term_output.getwh = grub_dumb_getwh; + grub_console_term_output.gotoxy = grub_dumb_gotoxy; + grub_console_term_output.cls = (void *) dummy; + grub_console_term_output.setcolorstate = (void *) dummy; + grub_console_term_output.setcursor = (void *) dummy; + grub_console_term_output.progress_update_divisor = GRUB_PROGRESS_NO_UPDATE; + } grub_term_register_input ("console", &grub_console_term_input); grub_term_register_output ("console", &grub_console_term_output); grub_terminfo_init (); - grub_terminfo_output_register (&grub_console_term_output, "vt100-color"); + grub_terminfo_output_register (&grub_console_term_output, + (grub_console_term_output.flags & GRUB_TERM_DUMB) ? "dumb":"vt100-color"); } void grub_console_fini (void) { + dprintf( "grub_console_fini: %d\n", grub_console_term_output.flags & GRUB_TERM_DUMB); if (saved_orig) { fcntl (STDIN_FILENO, F_SETFL, original_fl); tcsetattr(STDIN_FILENO, TCSANOW, &orig_tty); } + if (!(grub_console_term_output.flags & GRUB_TERM_DUMB)) + { + const char clear[] = { 0x1b, 'c', 0 }; + write (STDOUT_FILENO, clear, 2); + } saved_orig = 0; } --- a/grub-core/normal/menu_text.c +++ b/grub-core/normal/menu_text.c @@ -113,6 +113,7 @@ { int i; + if (! (term->flags & GRUB_TERM_DUMB)) { grub_term_setcolorstate (term, GRUB_TERM_COLOR_NORMAL); grub_term_gotoxy (term, (struct grub_term_coordinate) { geo->first_entry_x - 1, @@ -142,7 +143,7 @@ grub_putcode (GRUB_UNICODE_CORNER_LR, term); grub_term_setcolorstate (term, GRUB_TERM_COLOR_NORMAL); - + } grub_term_gotoxy (term, (struct grub_term_coordinate) { geo->first_entry_x - 1, (geo->first_entry_y - 1 + geo->num_entries @@ -155,6 +156,15 @@ int ret = 0; grub_term_setcolorstate (term, GRUB_TERM_COLOR_NORMAL); + if (edit && (term->flags & GRUB_TERM_LINE)) + { + ret += grub_print_message_indented_real + (_("Minimum Emacs-like screen editing is supported. '^i' lists " + "completions. Type '^x' to boot, '^c' for a command-line " + "or '^[' to discard edits and return to the GRUB menu."), + STANDARD_MARGIN, STANDARD_MARGIN, term, dry_run); + } + else if (edit) { ret += grub_print_message_indented_real (_("Minimum Emacs-like screen editing is \ @@ -165,10 +175,15 @@ } else { +#if defined(__s390x__hotkey) + ret += grub_print_message_indented_real + (_("Select a menu option by pressing the hotkey specified. "), + STANDARD_MARGIN, STANDARD_MARGIN, term, dry_run); +#else char *msg_translated; msg_translated = grub_xasprintf (_("Use the %C and %C keys to select which " - "entry is highlighted."), + "entry is highlighted. "), GRUB_UNICODE_UPARROW, GRUB_UNICODE_DOWNARROW); if (!msg_translated) @@ -177,6 +192,7 @@ STANDARD_MARGIN, term, dry_run); grub_free (msg_translated); +#endif if (nested) { @@ -211,6 +227,10 @@ title = entry ? entry->title : ""; title_len = grub_strlen (title); + + if ((data->term->flags & GRUB_TERM_DUMB) && title[0] == '\0') + return; + unicode_title = grub_calloc (title_len, sizeof (*unicode_title)); if (! unicode_title) /* XXX How to show this error? */ @@ -244,6 +264,14 @@ if (data->geo.num_entries > 1) grub_putcode (highlight ? '*' : ' ', data->term); + if ((data->term->flags & GRUB_TERM_LINE) && title[0] != '\0') { + grub_putcode('(', data->term); + grub_putcode((entry && entry->hotkey >= '0' && entry->hotkey <= 'z') ? + entry->hotkey : ' ', data->term); + grub_putcode(')', data->term); + grub_putcode(' ', data->term); + } + grub_print_ucs4_menu (unicode_title, unicode_title + len, 0, @@ -416,6 +444,8 @@ grub_term_highlight_color = old_color_highlight; geo->timeout_y = geo->first_entry_y + geo->num_entries + geo->border + empty_lines; + if (term->flags & GRUB_TERM_DUMB) + geo->timeout_y = 1; if (bottom_message) { grub_term_gotoxy (term, @@ -425,6 +455,8 @@ print_message (nested, edit, term, 0); geo->timeout_y += msg_num_lines; } + if (term->flags & GRUB_TERM_DUMB) + geo->timeout_y = 1; geo->right_margin = grub_term_width (term) - geo->first_entry_x - geo->entry_width - 1; @@ -436,12 +468,19 @@ struct menu_viewer_data *data = dataptr; char *msg_translated = 0; - grub_term_gotoxy (data->term, + if (data->geo.timeout_y) + grub_term_gotoxy (data->term, (struct grub_term_coordinate) { 0, data->geo.timeout_y }); + if (data->term->flags & GRUB_TERM_DUMB) + { + if (! data->geo.timeout_y) + data->timeout_msg = TIMEOUT_TERSE; + data->geo.timeout_y = 0; + } if (data->timeout_msg == TIMEOUT_TERSE || data->timeout_msg == TIMEOUT_TERSE_NO_MARGIN) - msg_translated = grub_xasprintf (_("%ds"), timeout); + msg_translated = grub_xasprintf (_(" %ds"), timeout); else msg_translated = grub_xasprintf (_("The highlighted entry will be executed automatically in %ds."), timeout); if (!msg_translated) @@ -471,6 +510,8 @@ data->term); grub_free (msg_translated); + if (data->term->flags & GRUB_TERM_DUMB) + return; grub_term_gotoxy (data->term, (struct grub_term_coordinate) { grub_term_cursor_x (&data->geo), @@ -498,7 +539,7 @@ data->first = entry; complete_redraw = 1; } - if (complete_redraw) + if (complete_redraw || (data->term->flags & GRUB_TERM_DUMB)) print_entries (data->menu, data); else { @@ -528,6 +569,9 @@ struct menu_viewer_data *data = dataptr; int i; + if ((data->term->flags & GRUB_TERM_DUMB)) + return; + for (i = 0; i < data->geo.timeout_lines;i++) { grub_term_gotoxy (data->term, (struct grub_term_coordinate) { --- a/grub-core/normal/term.c +++ b/grub-core/normal/term.c @@ -981,7 +981,7 @@ { print_ucs4_real (str, last_position, margin_left, margin_right, term, 0, 0, 1, skip_lines, max_lines, - contchar, 1, pos); + contchar, (term->flags & GRUB_TERM_DUMB)? 0 : 1, pos); } void --- a/grub-core/kern/emu/main.c +++ b/grub-core/kern/emu/main.c @@ -190,6 +190,12 @@ NULL, help_filter, NULL }; +void +ignore (int num __attribute__ ((unused))) +{ + return; +} + #pragma GCC diagnostic ignored "-Wmissing-prototypes" @@ -259,7 +265,7 @@ sleep (1); } - signal (SIGINT, SIG_IGN); + signal (SIGINT, (sighandler_t) &ignore); grub_console_init (); grub_host_init (); --- a/include/grub/term.h +++ b/include/grub/term.h @@ -102,8 +102,10 @@ #define GRUB_TERM_NO_EDIT (1 << 1) /* Set when the terminal cannot do fancy things. */ #define GRUB_TERM_DUMB (1 << 2) +/* Set when the terminal is line oriented. */ +#define GRUB_TERM_LINE (1 << 3) /* Which encoding does terminal expect stream to be. */ -#define GRUB_TERM_CODE_TYPE_SHIFT 3 +#define GRUB_TERM_CODE_TYPE_SHIFT 4 #define GRUB_TERM_CODE_TYPE_MASK (7 << GRUB_TERM_CODE_TYPE_SHIFT) /* Only ASCII characters accepted. */ #define GRUB_TERM_CODE_TYPE_ASCII (0 << GRUB_TERM_CODE_TYPE_SHIFT)
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