File: [local] / sys / dev / auconv.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:09:35 2008 UTC (16 years, 3 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: auconv.c,v 1.7 2007/07/17 08:35:33 jakemsr Exp $ */
/* $NetBSD: auconv.c,v 1.3 1999/11/01 18:12:19 augustss Exp $ */
/*
* Copyright (c) 1996 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the Computer Systems
* Engineering Group at Lawrence Berkeley Laboratory.
* 4. Neither the name of the University nor of the Laboratory may be used
* to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <sys/types.h>
#include <sys/audioio.h>
#include <dev/auconv.h>
void
change_sign8(void *v, u_char *p, int cc)
{
while (--cc >= 0) {
*p ^= 0x80;
++p;
}
}
void
change_sign16_le(void *v, u_char *p, int cc)
{
while ((cc -= 2) >= 0) {
p[1] ^= 0x80;
p += 2;
}
}
void
change_sign16_be(void *v, u_char *p, int cc)
{
while ((cc -= 2) >= 0) {
p[0] ^= 0x80;
p += 2;
}
}
void
swap_bytes(void *v, u_char *p, int cc)
{
u_char t;
while ((cc -= 2) >= 0) {
t = p[0];
p[0] = p[1];
p[1] = t;
p += 2;
}
}
void
swap_bytes_change_sign16_le(void *v, u_char *p, int cc)
{
u_char t;
while ((cc -= 2) >= 0) {
t = p[1];
p[1] = p[0] ^ 0x80;
p[0] = t;
p += 2;
}
}
void
swap_bytes_change_sign16_be(void *v, u_char *p, int cc)
{
u_char t;
while ((cc -= 2) >= 0) {
t = p[0];
p[0] = p[1] ^ 0x80;
p[1] = t;
p += 2;
}
}
void
change_sign16_swap_bytes_le(void *v, u_char *p, int cc)
{
swap_bytes_change_sign16_be(v, p, cc);
}
void
change_sign16_swap_bytes_be(void *v, u_char *p, int cc)
{
swap_bytes_change_sign16_le(v, p, cc);
}
void
linear8_to_linear16_le(void *v, u_char *p, int cc)
{
u_char *q = p;
p += cc;
q += cc * 2;
while (--cc >= 0) {
q -= 2;
q[1] = *--p;
q[0] = 0;
}
}
void
linear8_to_linear16_be(void *v, u_char *p, int cc)
{
u_char *q = p;
p += cc;
q += cc * 2;
while (--cc >= 0) {
q -= 2;
q[0] = *--p;
q[1] = 0;
}
}
void
linear16_to_linear8_le(void *v, u_char *p, int cc)
{
u_char *q = p;
while ((cc -= 2) >= 0) {
*q++ = p[1];
p += 2;
}
}
void
linear16_to_linear8_be(void *v, u_char *p, int cc)
{
u_char *q = p;
while ((cc -= 2) >= 0) {
*q++ = p[0];
p += 2;
}
}
void
ulinear8_to_linear16_le(void *v, u_char *p, int cc)
{
u_char *q = p;
p += cc;
q += cc * 2;
while (--cc >= 0) {
q -= 2;
q[1] = (*--p) ^ 0x80;
q[0] = 0;
}
}
void
ulinear8_to_linear16_be(void *v, u_char *p, int cc)
{
u_char *q = p;
p += cc;
q += cc * 2;
while (--cc >= 0) {
q -= 2;
q[0] = (*--p) ^ 0x80;
q[1] = 0;
}
}
void
linear16_to_ulinear8_le(void *v, u_char *p, int cc)
{
u_char *q = p;
while ((cc -= 2) >= 0) {
*q++ = p[1] ^ 0x80;
p += 2;
}
}
void
linear16_to_ulinear8_be(void *v, u_char *p, int cc)
{
u_char *q = p;
while ((cc -= 2) >= 0) {
*q++ = p[0] ^ 0x80;
p += 2;
}
}
/*
* just expand mono to stereo, no other conversions
*/
void
noswap_bytes_mts(void *v, u_char *p, int cc)
{
u_char *q = p;
p += cc;
q += cc * 2;
while ((cc -= 2) >= 0) {
q -= 4;
q[1] = q[3] = *--p;
q[0] = q[2] = *--p;
}
}
/*
* same as swap_bytes(), just expand mono to stereo
*/
void
swap_bytes_mts(void *v, u_char *p, int cc)
{
u_char *q = p;
p += cc;
q += cc * 2;
while ((cc -= 2) >= 0) {
q -= 4;
q[0] = q[2] = *--p;
q[1] = q[3] = *--p;
}
}
/*
* same as linear8_to_linear16_le(), plus expand mono to stereo
*/
void
linear8_to_linear16_le_mts(void *v, u_char *p, int cc)
{
u_char *q = p;
p += cc;
q += cc * 4;
while (--cc >= 0) {
q -= 4;
q[1] = q[3] = *--p;
q[0] = q[2] = 0;
}
}
/*
* same as linear8_to_linear16_be(), plus expand mono to stereo
*/
void
linear8_to_linear16_be_mts(void *v, u_char *p, int cc)
{
u_char *q = p;
p += cc;
q += cc * 4;
while (--cc >= 0) {
q -= 4;
q[0] = q[2] = *--p;
q[1] = q[3] = 0;
}
}
/*
* same as ulinear8_to_linear16_le(), plus expand mono to stereo
*/
void
ulinear8_to_linear16_le_mts(void *v, u_char *p, int cc)
{
u_char *q = p;
p += cc;
q += cc * 4;
while (--cc >= 0) {
q -= 4;
q[1] = q[3] = (*--p) ^ 0x80;
q[0] = q[2] = 0;
}
}
/*
* same as ulinear8_to_linear16_be(), plus expand mono to stereo
*/
void
ulinear8_to_linear16_be_mts(void *v, u_char *p, int cc)
{
u_char *q = p;
p += cc;
q += cc * 4;
while (--cc >= 0) {
q -= 4;
q[0] = q[2] = (*--p) ^ 0x80;
q[1] = q[3] = 0;
}
}
/*
* same as change_sign16_le(), plus expand mono to stereo
*/
void
change_sign16_le_mts(void *v, u_char *p, int cc)
{
u_char *q = p;
p += cc;
q += cc * 2;
while ((cc -= 2) >= 0) {
q -= 4;
q[1] = q[3] = (*--p) ^ 0x80;
q[0] = q[2] = *--p;
}
}
/*
* same as change_sign16_be(), plus expand mono to stereo
*/
void
change_sign16_be_mts(void *v, u_char *p, int cc)
{
u_char *q = p;
p += cc;
q += cc * 2;
while ((cc -= 2) >= 0) {
q -= 4;
q[0] = q[2] = (*--p) ^ 0x80;
q[1] = q[3] = *--p;
}
}
/*
* same as change_sign16_swap_bytes_le(), plus expand mono to stereo
*/
void
change_sign16_swap_bytes_le_mts(void *v, u_char *p, int cc)
{
change_sign16_be_mts(v, p, cc);
}
/*
* same as change_sign16_swap_bytes_be(), plus expand mono to stereo
*/
void
change_sign16_swap_bytes_be_mts(void *v, u_char *p, int cc)
{
change_sign16_le_mts(v, p, cc);
}