Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
This commit is contained in:
113
arch/m68k/amiga/pcmcia.c
Normal file
113
arch/m68k/amiga/pcmcia.c
Normal file
@@ -0,0 +1,113 @@
|
||||
/*
|
||||
** asm-m68k/pcmcia.c -- Amiga Linux PCMCIA support
|
||||
** most information was found by disassembling card.resource
|
||||
** I'm still looking for an official doc !
|
||||
**
|
||||
** Copyright 1997 by Alain Malek
|
||||
**
|
||||
** This file is subject to the terms and conditions of the GNU General Public
|
||||
** License. See the file COPYING in the main directory of this archive
|
||||
** for more details.
|
||||
**
|
||||
** Created: 12/10/97 by Alain Malek
|
||||
*/
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/jiffies.h>
|
||||
#include <linux/timer.h>
|
||||
#include <asm/amigayle.h>
|
||||
#include <asm/amipcmcia.h>
|
||||
|
||||
/* gayle config byte for program voltage and access speed */
|
||||
static unsigned char cfg_byte = GAYLE_CFG_0V|GAYLE_CFG_150NS;
|
||||
|
||||
void pcmcia_reset(void)
|
||||
{
|
||||
unsigned long reset_start_time = jiffies;
|
||||
unsigned char b;
|
||||
|
||||
gayle_reset = 0x00;
|
||||
while (time_before(jiffies, reset_start_time + 1*HZ/100));
|
||||
b = gayle_reset;
|
||||
}
|
||||
|
||||
|
||||
/* copy a tuple, including tuple header. return nb bytes copied */
|
||||
/* be carefull as this may trigger a GAYLE_IRQ_WR interrupt ! */
|
||||
|
||||
int pcmcia_copy_tuple(unsigned char tuple_id, void *tuple, int max_len)
|
||||
{
|
||||
unsigned char id, *dest;
|
||||
int cnt, pos, len;
|
||||
|
||||
dest = tuple;
|
||||
pos = 0;
|
||||
|
||||
id = gayle_attribute[pos];
|
||||
|
||||
while((id != CISTPL_END) && (pos < 0x10000)) {
|
||||
len = (int)gayle_attribute[pos+2] + 2;
|
||||
if (id == tuple_id) {
|
||||
len = (len > max_len)?max_len:len;
|
||||
for (cnt = 0; cnt < len; cnt++) {
|
||||
*dest++ = gayle_attribute[pos+(cnt<<1)];
|
||||
}
|
||||
|
||||
return len;
|
||||
}
|
||||
pos += len<<1;
|
||||
id = gayle_attribute[pos];
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void pcmcia_program_voltage(int voltage)
|
||||
{
|
||||
unsigned char v;
|
||||
|
||||
switch (voltage) {
|
||||
case PCMCIA_0V:
|
||||
v = GAYLE_CFG_0V;
|
||||
break;
|
||||
case PCMCIA_5V:
|
||||
v = GAYLE_CFG_5V;
|
||||
break;
|
||||
case PCMCIA_12V:
|
||||
v = GAYLE_CFG_12V;
|
||||
break;
|
||||
default:
|
||||
v = GAYLE_CFG_0V;
|
||||
}
|
||||
|
||||
cfg_byte = (cfg_byte & 0xfc) | v;
|
||||
gayle.config = cfg_byte;
|
||||
|
||||
}
|
||||
|
||||
void pcmcia_access_speed(int speed)
|
||||
{
|
||||
unsigned char s;
|
||||
|
||||
if (speed <= PCMCIA_SPEED_100NS)
|
||||
s = GAYLE_CFG_100NS;
|
||||
else if (speed <= PCMCIA_SPEED_150NS)
|
||||
s = GAYLE_CFG_150NS;
|
||||
else if (speed <= PCMCIA_SPEED_250NS)
|
||||
s = GAYLE_CFG_250NS;
|
||||
else
|
||||
s = GAYLE_CFG_720NS;
|
||||
|
||||
cfg_byte = (cfg_byte & 0xf3) | s;
|
||||
gayle.config = cfg_byte;
|
||||
}
|
||||
|
||||
void pcmcia_write_enable(void)
|
||||
{
|
||||
gayle.cardstatus = GAYLE_CS_WR|GAYLE_CS_DA;
|
||||
}
|
||||
|
||||
void pcmcia_write_disable(void)
|
||||
{
|
||||
gayle.cardstatus = 0;
|
||||
}
|
Reference in New Issue
Block a user