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Commit	Line	Data
	1	/*-
	2	* Copyright (c) 2000 Doug Rabson
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	*
	14	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	15	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	16	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	17	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	18	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	19	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	20	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	21	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	22	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	23	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	24	* SUCH DAMAGE.
	25	*
	26	* $DragonFly: src/sys/boot/efi/libefi/efi_console.c,v 1.1 2003/11/10 06:08:33 dillon Exp $
	27	*/
	28
	29	#include <efi.h>
	30	#include <efilib.h>
	31
	32	#include "bootstrap.h"
	33
	34	static SIMPLE_TEXT_OUTPUT_INTERFACE *conout;
	35	static SIMPLE_INPUT_INTERFACE *conin;
	36
	37	static void
	38	efi_cons_probe(struct console *cp)
	39	{
	40	conout = ST->ConOut;
	41	conin = ST->ConIn;
	42	cp->c_flags \|= C_PRESENTIN \| C_PRESENTOUT;
	43	}
	44
	45	static int
	46	efi_cons_init(int arg)
	47	{
	48	return 0;
	49	}
	50
	51	void
	52	efi_cons_putchar(int c)
	53	{
	54	CHAR16 buf[2];
	55
	56	if (c == '\n')
	57	efi_cons_putchar('\r');
	58
	59	buf[0] = c;
	60	buf[1] = 0;
	61
	62	conout->OutputString(conout, buf);
	63	}
	64
	65	int
	66	efi_cons_getchar()
	67	{
	68	EFI_INPUT_KEY key;
	69	EFI_STATUS status;
	70	UINTN junk;
	71
	72	/* Try to read a key stroke. We wait for one if none is pending. */
	73	status = conin->ReadKeyStroke(conin, &key);
	74	if (status == EFI_NOT_READY) {
	75	BS->WaitForEvent(1, &conin->WaitForKey, &junk);
	76	status = conin->ReadKeyStroke(conin, &key);
	77	}
	78	return (key.UnicodeChar);
	79	}
	80
	81	int
	82	efi_cons_poll()
	83	{
	84	/* This can clear the signaled state. */
	85	return (BS->CheckEvent(conin->WaitForKey) == EFI_SUCCESS);
	86	}
	87
	88	struct console efi_console = {
	89	"efi",
	90	"EFI console",
	91	0,
	92	efi_cons_probe,
	93	efi_cons_init,
	94	efi_cons_putchar,
	95	efi_cons_getchar,
	96	efi_cons_poll
	97	};