WebSVN – HelenOS – Blame – /branches/dd/kernel/arch/sparc64/src/console.c

Rev	Author	Line No.	Line
426	jermar	1	/*
2071	jermar	2	* Copyright (c) 2005 Jakub Jermar
426	jermar	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	*
		9	* - Redistributions of source code must retain the above copyright
		10	* notice, this list of conditions and the following disclaimer.
		11	* - Redistributions in binary form must reproduce the above copyright
		12	* notice, this list of conditions and the following disclaimer in the
		13	* documentation and/or other materials provided with the distribution.
		14	* - The name of the author may not be used to endorse or promote products
		15	* derived from this software without specific prior written permission.
		16	*
		17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
		18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
		19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
		20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
		21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
		26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		27	*/
		28
1769	jermar	29	/** @addtogroup sparc64
1702	cejka	30	* @{
		31	*/
		32	/** @file
		33	*/
		34
586	jermar	35	#include <arch/console.h>
669	jermar	36	#include <arch/types.h>
1842	jermar	37
1897	jermar	38	#include <arch/drivers/scr.h>
1842	jermar	39	#include <arch/drivers/kbd.h>
1897	jermar	40
4055	trochtova	41	#include <arch/drivers/sgcn.h>
1842	jermar	42
893	jermar	43	#include <console/chardev.h>
		44	#include <console/console.h>
		45	#include <arch/asm.h>
		46	#include <arch/register.h>
		47	#include <proc/thread.h>
897	jermar	48	#include <arch/mm/tlb.h>
1896	jermar	49	#include <genarch/ofw/ofw_tree.h>
1880	jermar	50	#include <arch.h>
1896	jermar	51	#include <panic.h>
4055	trochtova	52	#include <string.h>
1896	jermar	53	#include <print.h>
426	jermar	54
895	jermar	55	#define KEYBOARD_POLL_PAUSE 50000 /* 50ms */
		56
4055	trochtova	57	/**
		58	* Initialize kernel console to use framebuffer and keyboard directly.
		59	* Called on UltraSPARC machines with standard keyboard and framebuffer.
		60	*
		61	* @param aliases the "/aliases" OBP node
		62	*/
		63	static void standard_console_init(ofw_tree_node_t *aliases)
893	jermar	64	{
4055	trochtova	65	#ifdef CONFIG_FB
1896	jermar	66	ofw_tree_property_t *prop;
		67	ofw_tree_node_t *screen;
		68	ofw_tree_node_t *keyboard;
		69
		70	prop = ofw_tree_getprop(aliases, "screen");
		71	if (!prop)
4055	trochtova	72	panic("Cannot find property 'screen'.");
1896	jermar	73	if (!prop->value)
4055	trochtova	74	panic("Cannot find screen alias.");
1896	jermar	75	screen = ofw_tree_lookup(prop->value);
		76	if (!screen)
4055	trochtova	77	panic("Cannot find %s.", prop->value);
1896	jermar	78
1897	jermar	79	scr_init(screen);
		80
1896	jermar	81	prop = ofw_tree_getprop(aliases, "keyboard");
		82	if (!prop)
4055	trochtova	83	panic("Cannot find property 'keyboard'.");
1896	jermar	84	if (!prop->value)
4055	trochtova	85	panic("Cannot find keyboard alias.");
1896	jermar	86	keyboard = ofw_tree_lookup(prop->value);
		87	if (!keyboard)
4055	trochtova	88	panic("Cannot find %s.", prop->value);
897	jermar	89
1896	jermar	90	kbd_init(keyboard);
4055	trochtova	91	#else
		92	panic("Standard console requires FB, "
		93	"but the kernel is not compiled with FB support.");
		94	#endif
586	jermar	95	}
893	jermar	96
4055	trochtova	97	/** Initilize I/O on the Serengeti machine. */
		98	static void serengeti_init(void)
		99	{
		100	sgcn_init();
		101	}
		102
		103	/**
		104	* Initialize input/output. Auto-detects the type of machine
		105	* and calls the appropriate I/O init routine.
		106	*/
		107	void standalone_sparc64_console_init(void)
		108	{
		109	ofw_tree_node_t *aliases;
		110	ofw_tree_property_t *prop;
		111
		112	aliases = ofw_tree_lookup("/aliases");
		113	if (!aliases)
		114	panic("Cannot find '/aliases'.");
		115
		116	/* "def-cn" = "default console" */
		117	prop = ofw_tree_getprop(aliases, "def-cn");
		118
		119	if ((!prop) \|\| (!prop->value) \|\| (strcmp(prop->value, "/sgcn") != 0)) {
		120	standard_console_init(aliases);
		121	} else {
		122	serengeti_init();
		123	}
		124	}
		125
		126
895	jermar	127	/** Kernel thread for polling keyboard.
		128	*
		129	* @param arg Ignored.
		130	*/
		131	void kkbdpoll(void *arg)
		132	{
1880	jermar	133	thread_detach(THREAD);
		134
4055	trochtova	135	if (kbd_type != KBD_SGCN)
1849	jermar	136	return;
1896	jermar	137
		138	while (1) {
4055	trochtova	139	#ifdef CONFIG_SGCN
		140	if (kbd_type == KBD_SGCN)
		141	sgcn_poll();
1842	jermar	142	#endif
895	jermar	143	thread_usleep(KEYBOARD_POLL_PAUSE);
		144	}
		145	}
1702	cejka	146
1875	jermar	147	/** Acquire console back for kernel
		148	*
		149	*/
		150	void arch_grab_console(void)
		151	{
4055	trochtova	152	#ifdef CONFIG_FB
		153	scr_redraw();
		154	#endif
1931	jermar	155	switch (kbd_type) {
4055	trochtova	156	#ifdef CONFIG_SGCN
		157	case KBD_SGCN:
		158	sgcn_grab();
1931	jermar	159	break;
1875	jermar	160	#endif
1931	jermar	161	default:
		162	break;
		163	}
1875	jermar	164	}
		165
		166	/** Return console to userspace
		167	*
		168	*/
		169	void arch_release_console(void)
		170	{
1931	jermar	171	switch (kbd_type) {
4055	trochtova	172	#ifdef CONFIG_SGCN
		173	case KBD_SGCN:
		174	sgcn_release();
1931	jermar	175	break;
1875	jermar	176	#endif
1931	jermar	177	default:
		178	break;
		179	}
1875	jermar	180	}
1888	jermar	181
1769	jermar	182	/** @}
1702	cejka	183	*/

Subversion Repositories HelenOS

(root)/branches/dd/kernel/arch/sparc64/src/console.c – Rev 4055