Date: Wed, 20 Jan 2016 16:53:39 +0000 (UTC) From: Ed Maste <emaste@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r294445 - in stable/10/sys/boot: efi/libefi efi/loader ficl/amd64 Message-ID: <201601201653.u0KGrdEC032522@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: emaste Date: Wed Jan 20 16:53:38 2016 New Revision: 294445 URL: https://svnweb.freebsd.org/changeset/base/294445 Log: MFC r293233: loader.efi: add terminal emulation support This is based on the vidconsole implementation. Submitted by: Toomas Soome <tsoome@me.com> Relnotes: Yes Modified: stable/10/sys/boot/efi/libefi/Makefile stable/10/sys/boot/efi/libefi/efi_console.c stable/10/sys/boot/efi/loader/main.c stable/10/sys/boot/ficl/amd64/sysdep.c Modified: stable/10/sys/boot/efi/libefi/Makefile ============================================================================== --- stable/10/sys/boot/efi/libefi/Makefile Wed Jan 20 16:45:39 2016 (r294444) +++ stable/10/sys/boot/efi/libefi/Makefile Wed Jan 20 16:53:38 2016 (r294445) @@ -19,5 +19,6 @@ CFLAGS+= -I${.CURDIR}/../../common # Suppress warning from clang for FreeBSD %b and %D formats CFLAGS+= -fformat-extensions +CFLAGS+= -DTERM_EMU .include <bsd.lib.mk> Modified: stable/10/sys/boot/efi/libefi/efi_console.c ============================================================================== --- stable/10/sys/boot/efi/libefi/efi_console.c Wed Jan 20 16:45:39 2016 (r294444) +++ stable/10/sys/boot/efi/libefi/efi_console.c Wed Jan 20 16:53:38 2016 (r294445) @@ -35,6 +35,69 @@ __FBSDID("$FreeBSD$"); static SIMPLE_TEXT_OUTPUT_INTERFACE *conout; static SIMPLE_INPUT_INTERFACE *conin; +#ifdef TERM_EMU +#define DEFAULT_FGCOLOR EFI_LIGHTGRAY +#define DEFAULT_BGCOLOR EFI_BLACK + +#define MAXARGS 8 +static int args[MAXARGS], argc; +static int fg_c, bg_c, curx, cury; +static int esc; + +void get_pos(int *x, int *y); +void curs_move(int *_x, int *_y, int x, int y); +static void CL(int); +#endif + +static void efi_cons_probe(struct console *); +static int efi_cons_init(int); +void efi_cons_putchar(int); +int efi_cons_getchar(void); +void efi_cons_efiputchar(int); +int efi_cons_poll(void); + +struct console efi_console = { + "efi", + "EFI console", + 0, + efi_cons_probe, + efi_cons_init, + efi_cons_putchar, + efi_cons_getchar, + efi_cons_poll +}; + +#ifdef TERM_EMU + +/* Get cursor position. */ +void +get_pos(int *x, int *y) +{ + *x = conout->Mode->CursorColumn; + *y = conout->Mode->CursorRow; +} + +/* Move cursor to x rows and y cols (0-based). */ +void +curs_move(int *_x, int *_y, int x, int y) +{ + conout->SetCursorPosition(conout, x, y); + if (_x != NULL) + *_x = conout->Mode->CursorColumn; + if (_y != NULL) + *_y = conout->Mode->CursorRow; +} + +/* Clear internal state of the terminal emulation code. */ +void +end_term(void) +{ + esc = 0; + argc = -1; +} + +#endif + static void efi_cons_probe(struct console *cp) { @@ -46,22 +109,314 @@ efi_cons_probe(struct console *cp) static int efi_cons_init(int arg) { - conout->SetAttribute(conout, EFI_TEXT_ATTR(EFI_LIGHTGRAY, EFI_BLACK)); + conout->SetAttribute(conout, EFI_TEXT_ATTR(DEFAULT_FGCOLOR, + DEFAULT_BGCOLOR)); +#ifdef TERM_EMU + end_term(); + get_pos(&curx, &cury); + curs_move(&curx, &cury, curx, cury); + fg_c = DEFAULT_FGCOLOR; + bg_c = DEFAULT_BGCOLOR; +#endif + conout->EnableCursor(conout, TRUE); return 0; } +static void +efi_cons_rawputchar(int c) +{ + int i; + UINTN x, y; + conout->QueryMode(conout, conout->Mode->Mode, &x, &y); + + if (c == '\t') + /* XXX lame tab expansion */ + for (i = 0; i < 8; i++) + efi_cons_rawputchar(' '); + else { +#ifndef TERM_EMU + if (c == '\n') + efi_cons_efiputchar('\r'); + else + efi_cons_efiputchar(c); +#else + switch (c) { + case '\r': + curx = 0; + curs_move(&curx, &cury, curx, cury); + return; + case '\n': + cury++; + if (cury >= y) { + efi_cons_efiputchar('\n'); + cury--; + } else + curs_move(&curx, &cury, curx, cury); + return; + case '\b': + if (curx > 0) { + curx--; + curs_move(&curx, &cury, curx, cury); + } + return; + default: + efi_cons_efiputchar(c); + curx++; + if (curx > x-1) { + curx = 0; + cury++; + } + if (cury > y-1) { + curx = 0; + cury--; + } + } + curs_move(&curx, &cury, curx, cury); +#endif + } +} + +/* Gracefully exit ESC-sequence processing in case of misunderstanding. */ +static void +bail_out(int c) +{ + char buf[16], *ch; + int i; + + if (esc) { + efi_cons_rawputchar('\033'); + if (esc != '\033') + efi_cons_rawputchar(esc); + for (i = 0; i <= argc; ++i) { + sprintf(buf, "%d", args[i]); + ch = buf; + while (*ch) + efi_cons_rawputchar(*ch++); + } + } + efi_cons_rawputchar(c); + end_term(); +} + +/* Clear display from current position to end of screen. */ +static void +CD(void) { + int i; + UINTN x, y; + + get_pos(&curx, &cury); + if (curx == 0 && cury == 0) { + conout->ClearScreen(conout); + end_term(); + return; + } + + conout->QueryMode(conout, conout->Mode->Mode, &x, &y); + CL(0); /* clear current line from cursor to end */ + for (i = cury + 1; i < y-1; i++) { + curs_move(NULL, NULL, 0, i); + CL(0); + } + curs_move(NULL, NULL, curx, cury); + end_term(); +} + +/* + * Absolute cursor move to args[0] rows and args[1] columns + * (the coordinates are 1-based). + */ +static void +CM(void) +{ + if (args[0] > 0) + args[0]--; + if (args[1] > 0) + args[1]--; + curs_move(&curx, &cury, args[1], args[0]); + end_term(); +} + +/* Home cursor (left top corner), also called from mode command. */ void -efi_cons_putchar(int c) +HO(void) { - CHAR16 buf[2]; + argc = 1; + args[0] = args[1] = 1; + CM(); +} - if (c == '\n') - efi_cons_putchar('\r'); +/* Clear line from current position to end of line */ +static void +CL(int direction) +{ + int i, len; + UINTN x, y; + CHAR16 *line; - buf[0] = c; - buf[1] = 0; + conout->QueryMode(conout, conout->Mode->Mode, &x, &y); + switch (direction) { + case 0: /* from cursor to end */ + len = x - curx + 1; + break; + case 1: /* from beginning to cursor */ + len = curx; + break; + case 2: /* entire line */ + len = x; + break; + } - conout->OutputString(conout, buf); + if (cury == y - 1) + len--; + + line = malloc(len * sizeof (CHAR16)); + if (line == NULL) { + printf("out of memory\n"); + return; + } + for (i = 0; i < len; i++) + line[i] = ' '; + line[len-1] = 0; + + if (direction != 0) + curs_move(NULL, NULL, 0, cury); + + conout->OutputString(conout, line); + /* restore cursor position */ + curs_move(NULL, NULL, curx, cury); + free(line); + end_term(); +} + +static void +get_arg(int c) +{ + if (argc < 0) + argc = 0; + args[argc] *= 10; + args[argc] += c - '0'; +} + +/* Emulate basic capabilities of cons25 terminal */ +static void +efi_term_emu(int c) +{ + static int ansi_col[] = { + 0, 4, 2, 6, 1, 5, 3, 7 + }; + int t, i; + + switch (esc) { + case 0: + switch (c) { + case '\033': + esc = c; + break; + default: + efi_cons_rawputchar(c); + break; + } + break; + case '\033': + switch (c) { + case '[': + esc = c; + args[0] = 0; + argc = -1; + break; + default: + bail_out(c); + break; + } + break; + case '[': + switch (c) { + case ';': + if (argc < 0) + argc = 0; + else if (argc + 1 >= MAXARGS) + bail_out(c); + else + args[++argc] = 0; + break; + case 'H': /* ho = \E[H */ + if (argc < 0) + HO(); + else if (argc == 1) + CM(); + else + bail_out(c); + break; + case 'J': /* cd = \E[J */ + if (argc < 0) + CD(); + else + bail_out(c); + break; + case 'm': + if (argc < 0) { + fg_c = DEFAULT_FGCOLOR; + bg_c = DEFAULT_BGCOLOR; + } + for (i = 0; i <= argc; ++i) { + switch (args[i]) { + case 0: /* back to normal */ + fg_c = DEFAULT_FGCOLOR; + bg_c = DEFAULT_BGCOLOR; + break; + case 1: /* bold */ + fg_c |= 0x8; + break; + case 4: /* underline */ + case 5: /* blink */ + bg_c |= 0x8; + break; + case 7: /* reverse */ + t = fg_c; + fg_c = bg_c; + bg_c = t; + break; + case 30: case 31: case 32: case 33: + case 34: case 35: case 36: case 37: + fg_c = ansi_col[args[i] - 30]; + break; + case 39: /* normal */ + fg_c = DEFAULT_FGCOLOR; + break; + case 40: case 41: case 42: case 43: + case 44: case 45: case 46: case 47: + bg_c = ansi_col[args[i] - 40]; + break; + case 49: /* normal */ + bg_c = DEFAULT_BGCOLOR; + break; + } + } + conout->SetAttribute(conout, EFI_TEXT_ATTR(fg_c, bg_c)); + end_term(); + break; + default: + if (isdigit(c)) + get_arg(c); + else + bail_out(c); + break; + } + break; + default: + bail_out(c); + break; + } +} + +void +efi_cons_putchar(int c) +{ +#ifdef TERM_EMU + efi_term_emu(c); +#else + efi_cons_rawputchar(c); +#endif } int @@ -77,6 +432,12 @@ efi_cons_getchar() BS->WaitForEvent(1, &conin->WaitForKey, &junk); status = conin->ReadKeyStroke(conin, &key); } + switch (key.ScanCode) { + case 0x17: /* ESC */ + return (0x1b); /* esc */ + } + + /* this can return */ return (key.UnicodeChar); } @@ -87,13 +448,36 @@ efi_cons_poll() return (BS->CheckEvent(conin->WaitForKey) == EFI_SUCCESS); } -struct console efi_console = { - "efi", - "EFI console", - 0, - efi_cons_probe, - efi_cons_init, - efi_cons_putchar, - efi_cons_getchar, - efi_cons_poll -}; +/* Plain direct access to EFI OutputString(). */ +void +efi_cons_efiputchar(int c) +{ + CHAR16 buf[2]; + + /* + * translate box chars to unicode + */ + switch (c) { + /* single frame */ + case 0xb3: buf[0] = BOXDRAW_VERTICAL; break; + case 0xbf: buf[0] = BOXDRAW_DOWN_LEFT; break; + case 0xc0: buf[0] = BOXDRAW_UP_RIGHT; break; + case 0xc4: buf[0] = BOXDRAW_HORIZONTAL; break; + case 0xda: buf[0] = BOXDRAW_DOWN_RIGHT; break; + case 0xd9: buf[0] = BOXDRAW_UP_LEFT; break; + + /* double frame */ + case 0xba: buf[0] = BOXDRAW_DOUBLE_VERTICAL; break; + case 0xbb: buf[0] = BOXDRAW_DOUBLE_DOWN_LEFT; break; + case 0xbc: buf[0] = BOXDRAW_DOUBLE_UP_LEFT; break; + case 0xc8: buf[0] = BOXDRAW_DOUBLE_UP_RIGHT; break; + case 0xc9: buf[0] = BOXDRAW_DOUBLE_DOWN_RIGHT; break; + case 0xcd: buf[0] = BOXDRAW_DOUBLE_HORIZONTAL; break; + + default: + buf[0] = c; + } + buf[1] = 0; /* terminate string */ + + conout->OutputString(conout, buf); +} Modified: stable/10/sys/boot/efi/loader/main.c ============================================================================== --- stable/10/sys/boot/efi/loader/main.c Wed Jan 20 16:45:39 2016 (r294444) +++ stable/10/sys/boot/efi/loader/main.c Wed Jan 20 16:53:38 2016 (r294445) @@ -331,6 +331,7 @@ command_mode(int argc, char *argv[]) char rowenv[8]; EFI_STATUS status; SIMPLE_TEXT_OUTPUT_INTERFACE *conout; + extern void HO(void); conout = ST->ConOut; @@ -352,7 +353,7 @@ command_mode(int argc, char *argv[]) } sprintf(rowenv, "%u", (unsigned)rows); setenv("LINES", rowenv, 1); - + HO(); /* set cursor */ return (CMD_OK); } Modified: stable/10/sys/boot/ficl/amd64/sysdep.c ============================================================================== --- stable/10/sys/boot/ficl/amd64/sysdep.c Wed Jan 20 16:45:39 2016 (r294444) +++ stable/10/sys/boot/ficl/amd64/sysdep.c Wed Jan 20 16:53:38 2016 (r294445) @@ -55,7 +55,7 @@ void ficlTextOut(FICL_VM *pVM, char *ms IGNORE(pVM); while(*msg != 0) - putchar(*(msg++)); + putchar((unsigned char)*(msg++)); if (fNewline) putchar('\n');
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201601201653.u0KGrdEC032522>