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efi_console.c revision 1.1.4.3 
      1  1.1.4.3  elad /*	$NetBSD: efi_console.c,v 1.1.4.3 2006/05/11 23:26:48 elad Exp $	*/
      2  1.1.4.2  elad 
      3  1.1.4.2  elad /*-
      4  1.1.4.2  elad  * Copyright (c) 2000 Doug Rabson
      5  1.1.4.2  elad  * All rights reserved.
      6  1.1.4.2  elad  *
      7  1.1.4.2  elad  * Redistribution and use in source and binary forms, with or without
      8  1.1.4.2  elad  * modification, are permitted provided that the following conditions
      9  1.1.4.2  elad  * are met:
     10  1.1.4.2  elad  * 1. Redistributions of source code must retain the above copyright
     11  1.1.4.2  elad  *    notice, this list of conditions and the following disclaimer.
     12  1.1.4.2  elad  * 2. Redistributions in binary form must reproduce the above copyright
     13  1.1.4.2  elad  *    notice, this list of conditions and the following disclaimer in the
     14  1.1.4.2  elad  *    documentation and/or other materials provided with the distribution.
     15  1.1.4.2  elad  *
     16  1.1.4.2  elad  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  1.1.4.2  elad  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  1.1.4.2  elad  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  1.1.4.2  elad  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  1.1.4.2  elad  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  1.1.4.2  elad  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  1.1.4.2  elad  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  1.1.4.2  elad  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  1.1.4.2  elad  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  1.1.4.2  elad  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  1.1.4.2  elad  * SUCH DAMAGE.
     27  1.1.4.2  elad  */
     28  1.1.4.2  elad 
     29  1.1.4.2  elad #include <sys/cdefs.h>
     30  1.1.4.3  elad /* __FBSDID("$FreeBSD: src/sys/boot/efi/libefi/efi_console.c,v 1.5 2004/03/09 04:00:33 marcel Exp $"); */
     31  1.1.4.2  elad 
     32  1.1.4.2  elad #include <efi.h>
     33  1.1.4.2  elad #include <efilib.h>
     34  1.1.4.2  elad #include <lib/libsa/stand.h>
     35  1.1.4.2  elad 
     36  1.1.4.2  elad #include "bootstrap.h"
     37  1.1.4.2  elad 
     38  1.1.4.2  elad static SIMPLE_TEXT_OUTPUT_INTERFACE	*conout;
     39  1.1.4.2  elad static SIMPLE_INPUT_INTERFACE		*conin;
     40  1.1.4.2  elad 
     41  1.1.4.2  elad static void
     42  1.1.4.2  elad efi_cons_probe(struct console *cp)
     43  1.1.4.2  elad {
     44  1.1.4.2  elad 	conout = ST->ConOut;
     45  1.1.4.2  elad 	conin = ST->ConIn;
     46  1.1.4.2  elad 	cp->c_flags |= C_PRESENTIN | C_PRESENTOUT;
     47  1.1.4.2  elad }
     48  1.1.4.2  elad 
     49  1.1.4.2  elad static int
     50  1.1.4.2  elad efi_cons_init(int arg)
     51  1.1.4.2  elad {
     52  1.1.4.2  elad 	conout->SetAttribute(conout, EFI_TEXT_ATTR(EFI_LIGHTGRAY, EFI_BLACK));
     53  1.1.4.2  elad 	return 0;
     54  1.1.4.2  elad }
     55  1.1.4.2  elad 
     56  1.1.4.2  elad void
     57  1.1.4.2  elad efi_cons_putchar(int c)
     58  1.1.4.2  elad {
     59  1.1.4.2  elad 	CHAR16 buf[2];
     60  1.1.4.2  elad 
     61  1.1.4.2  elad 	if (c == '\n')
     62  1.1.4.2  elad 		efi_cons_putchar('\r');
     63  1.1.4.2  elad 
     64  1.1.4.2  elad 	buf[0] = c;
     65  1.1.4.2  elad 	buf[1] = 0;
     66  1.1.4.2  elad 
     67  1.1.4.2  elad 	conout->OutputString(conout, buf);
     68  1.1.4.2  elad }
     69  1.1.4.2  elad 
     70  1.1.4.2  elad int
     71  1.1.4.2  elad efi_cons_getchar()
     72  1.1.4.2  elad {
     73  1.1.4.2  elad 	EFI_INPUT_KEY key;
     74  1.1.4.2  elad 	EFI_STATUS status;
     75  1.1.4.2  elad 	UINTN junk;
     76  1.1.4.2  elad 
     77  1.1.4.2  elad 	/* Try to read a key stroke. We wait for one if none is pending. */
     78  1.1.4.2  elad 	status = conin->ReadKeyStroke(conin, &key);
     79  1.1.4.2  elad 	if (status == EFI_NOT_READY) {
     80  1.1.4.2  elad 		BS->WaitForEvent(1, &conin->WaitForKey, &junk);
     81  1.1.4.2  elad 		status = conin->ReadKeyStroke(conin, &key);
     82  1.1.4.2  elad 	}
     83  1.1.4.2  elad 	return (key.UnicodeChar);
     84  1.1.4.2  elad }
     85  1.1.4.2  elad 
     86  1.1.4.2  elad int
     87  1.1.4.2  elad efi_cons_poll()
     88  1.1.4.2  elad {
     89  1.1.4.2  elad 	/* This can clear the signaled state. */
     90  1.1.4.2  elad 	return (BS->CheckEvent(conin->WaitForKey) == EFI_SUCCESS);
     91  1.1.4.2  elad }
     92  1.1.4.2  elad 
     93  1.1.4.2  elad struct console efi_console = {
     94  1.1.4.2  elad 	"efi",
     95  1.1.4.2  elad 	"EFI console",
     96  1.1.4.2  elad 	0,
     97  1.1.4.2  elad 	efi_cons_probe,
     98  1.1.4.2  elad 	efi_cons_init,
     99  1.1.4.2  elad 	efi_cons_putchar,
    100  1.1.4.2  elad 	efi_cons_getchar,
    101  1.1.4.2  elad 	efi_cons_poll
    102  1.1.4.2  elad };
    103