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      1 /*	$NetBSD: led.c,v 1.8 2015/06/09 22:47:12 matt Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2001 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #include <sys/cdefs.h>
     33 __KERNEL_RCSID(0, "$NetBSD: led.c,v 1.8 2015/06/09 22:47:12 matt Exp $");
     34 
     35 #include "opt_algor_p4032.h"
     36 #include "opt_algor_p5064.h"
     37 #include "opt_algor_p6032.h"
     38 
     39 #include <sys/param.h>
     40 
     41 #include <mips/cpuregs.h>
     42 
     43 #include <algor/autoconf.h>
     44 
     45 #ifdef ALGOR_P4032
     46 #include <algor/algor/algor_p4032reg.h>
     47 #endif
     48 
     49 #ifdef ALGOR_P5064
     50 #include <algor/algor/algor_p5064reg.h>
     51 #endif
     52 
     53 #ifdef ALGOR_P6032
     54 #include <algor/algor/algor_p6032reg.h>
     55 #endif
     56 
     57 #if defined(ALGOR_P4032)
     58 #define	LEDBASE		MIPS_PHYS_TO_KSEG1(P4032_LED)
     59 #define	LED(x)		((3 - (x)) * 4)
     60 #elif defined(ALGOR_P5064)
     61 #define	LEDBASE		MIPS_PHYS_TO_KSEG1(P5064_LED1)
     62 #define	LED(x)		((3 - (x)) * 4)
     63 #elif defined(ALGOR_P6032)
     64 #define	HD2532_STRIDE		4
     65 #define	HD2532_NFLASH_OFFSET	0x80
     66 #define	HD2532_CRAM	(HD2532_NFLASH_OFFSET + (0x18 * HD2532_STRIDE))
     67 #define	LEDBASE		MIPS_PHYS_TO_KSEG1(P6032_HDSP2532_BASE + HD2532_CRAM)
     68 #define	LED(x)		((x) * HD2532_STRIDE)
     69 #endif
     70 
     71 /*
     72  * led_display:
     73  *
     74  *	Set the LED display to the characters provided.
     75  */
     76 void
     77 led_display(u_int8_t a, u_int8_t b, u_int8_t c, u_int8_t d)
     78 {
     79 	u_int8_t *leds = (u_int8_t *) LEDBASE;
     80 
     81 	leds[LED(0)] = a;
     82 	leds[LED(1)] = b;
     83 	leds[LED(2)] = c;
     84 	leds[LED(3)] = d;
     85 #if defined(ALGOR_P6032)	/* XXX Should support these */
     86 	leds[LED(4)] = ' ';
     87 	leds[LED(5)] = ' ';
     88 	leds[LED(6)] = ' ';
     89 	leds[LED(7)] = ' ';
     90 #endif
     91 }
     92