File: [local] / sys / dev / raidframe / rf_utils.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:09:54 2008 UTC (16 years, 4 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
|
/* $OpenBSD: rf_utils.c,v 1.5 2002/12/16 07:01:05 tdeval Exp $ */
/* $NetBSD: rf_utils.c,v 1.5 2000/01/07 03:41:03 oster Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Mark Holland
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/******************************************
*
* rf_utils.c -- Various support routines.
*
******************************************/
#include "rf_threadstuff.h"
#include <sys/time.h>
#include "rf_utils.h"
#include "rf_debugMem.h"
#include "rf_alloclist.h"
#include "rf_general.h"
/* Creates & zeros 2-d array with b rows and k columns. (MCH) */
RF_RowCol_t **
rf_make_2d_array(int b, int k, RF_AllocListElem_t *allocList)
{
RF_RowCol_t **retval, i;
RF_MallocAndAdd(retval, b * sizeof(RF_RowCol_t *), (RF_RowCol_t **),
allocList);
for (i = 0; i < b; i++) {
RF_MallocAndAdd(retval[i], k * sizeof(RF_RowCol_t),
(RF_RowCol_t *), allocList);
bzero((char *) retval[i], k * sizeof(RF_RowCol_t));
}
return (retval);
}
void
rf_free_2d_array(RF_RowCol_t **a, int b, int k)
{
RF_RowCol_t i;
for (i = 0; i < b; i++)
RF_Free(a[i], k * sizeof(RF_RowCol_t));
RF_Free(a, b * sizeof(RF_RowCol_t));
}
/* Creates & zeroes a 1-d array with c columns. */
RF_RowCol_t *
rf_make_1d_array(int c, RF_AllocListElem_t *allocList)
{
RF_RowCol_t *retval;
RF_MallocAndAdd(retval, c * sizeof(RF_RowCol_t), (RF_RowCol_t *),
allocList);
bzero((char *) retval, c * sizeof(RF_RowCol_t));
return (retval);
}
void
rf_free_1d_array(RF_RowCol_t *a, int n)
{
RF_Free(a, n * sizeof(RF_RowCol_t));
}
/*
* Euclid's algorithm: Finds and returns the greatest common divisor
* between a and b. (MCH)
*/
int
rf_gcd(int m, int n)
{
int t;
while (m > 0) {
t = n % m;
n = m;
m = t;
}
return (n);
}
/*
* These convert between text and integer. Apparently the regular C macros
* for doing this are not available in the kernel.
*/
#define ISDIGIT(x) ((x) >= '0' && (x) <= '9')
#define ISHEXCHAR(x) (((x) >= 'a' && (x) <= 'f') || \
((x) >= 'A' && (x) <= 'F'))
#define ISHEX(x) (ISDIGIT(x) || ISHEXCHAR(x))
#define HC2INT(x) (((x) >= 'a' && (x) <= 'f') ? \
(x) - 'a' + 10 : \
(((x) >= 'A' && (x) <= 'F') ? \
(x) - 'A' + 10 : (x - '0')))
int
rf_atoi(char *p)
{
int val = 0, negate = 0;
if (*p == '-') {
negate = 1;
p++;
}
for (; ISDIGIT(*p); p++)
val = 10 * val + (*p - '0');
return ((negate) ? -val : val);
}
int
rf_htoi(char *p)
{
int val = 0;
for (; ISHEXCHAR(*p); p++)
val = 16 * val + HC2INT(*p);
return (val);
}