/* Changes:
1.01 GRG 1998.05.06 init_proto, release_proto
*/
#define KBIC_VERSION "1.01"
#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/wait.h>
#include <asm/io.h>
#include "paride.h"
#define r12w() (delay_p,inw(pi->port+1)&0xffff)
#define j44(a,b) ((((a>>4)&0x0f)|(b&0xf0))^0x88)
#define j53(w) (((w>>3)&0x1f)|((w>>4)&0xe0))
/* cont = 0 - access the IDE register file
cont = 1 - access the IDE command set
*/
static int cont_map[2] = { 0x80, 0x40 };
static int kbic_read_regr( PIA *pi, int cont, int regr )
{ int a, b, s;
s = cont_map[cont];
switch (pi->mode) {
case 0: w0(regr|0x18|s); w2(4); w2(6); w2(4); w2(1); w0(8);
a = r1(); w0(0x28); b = r1(); w2(4);
return j44(a,b);
case 1: w0(regr|0x38|s); w2(4); w2(6); w2(4); w2(5); w0(8);
a = r12w(); w2(4);
return j53(a);
case 2: w0(regr|0x08|s); w2(4); w2(6); w2(4); w2(0xa5); w2(0xa1);
a = r0(); w2(4);
return a;
case 3:
case 4:
case 5: w0(0x20|s); w2(4); w2(6); w2(4); w3(regr);
a = r4(); b = r4(); w2(4); w2(0); w2(4);
return a;
}
return -1;
}
static void kbic_write_regr( PIA *pi, int cont, int regr, int val)
{ int s;
s = cont_map[cont];
switch (pi->mode) {
case 0:
case 1:
case 2: w0(regr|0x10|s); w2(4); w2(6); w2(4);
w0(val); w2(5); w2(4);
break;
case 3:
case 4:
case 5: w0(0x20|s); w2(4); w2(6); w2(4); w3(regr);
w4(val); w4(val);
w2(4); w2(0); w2(4);
break;
}
}
static void k951_connect ( PIA *pi )
{ pi->saved_r0 = r0();
pi->saved_r2 = r2();
w2(4);
}
static void k951_disconnect ( PIA *pi )
{ w0(pi->saved_r0);
w2(pi->saved_r2);
}
#define CCP(x) w2(0xc4);w0(0xaa);w0(0x55);w0(0);w0(0xff);w0(0x87);\
w0(0x78);w0(x);w2(0xc5);w2(0xc4);w0(0xff);
static void k971_connect ( PIA *pi )
{ pi->saved_r0 = r0();
pi->saved_r2 = r2();
CCP(0x20);
w2(4);
}
static void k971_disconnect ( PIA *pi )
{ CCP(0x30);
w0(pi->saved_r0);
w2(pi->saved_r2);
}
/* counts must be congruent to 0 MOD 4, but all known applications
have this property.
*/
static void kbic_read_block( PIA *pi, char * buf, int count )
{ int k, a, b;
switch (pi->mode) {
case 0: w0(0x98); w2(4); w2(6); w2(4);
for (k=0;k<count/2;k++) {
w2(1); w0(8); a = r1();
w0(0x28); b = r1();
buf[2*k] = j44(a,b);
w2(5); b = r1();
w0(8); a = r1();
buf[2*k+1] = j44(a,b);
w2(4);
}
break;
case 1: w0(0xb8); w2(4); w2(6); w2(4);
for (k=0;k<count/4;k++) {
w0(0xb8);
w2(4); w2(5);
w0(8); buf[4*k] = j53(r12w());
w0(0xb8); buf[4*k+1] = j53(r12w());
w2(4); w2(5);
buf[4*k+3] = j53(r12w());
w0(8); buf[4*k+2] = j53(r12w());
}
w2(4);
break;
case 2: w0(0x88); w2(4); w2(6); w2(4);
for (k=0;k<count/2;k++) {
w2(0xa0); w2(0xa1); buf[2*k] = r0();
w2(0xa5); buf[2*k+1] = r0();
}
w2(4);
break;
case 3: w0(0xa0); w2(4); w2(6); w2(4); w3(0);
for (k=0;k<count;k++) buf[k] = r4();
w2(4); w2(0); w2(4);
break;
case 4: w0(0xa0); w2(4); w2(6); w2(4); w3(0);
for (k=0;k<count/2;k++) ((u16 *)buf)[k] = r4w();
w2(4); w2(0); w2(4);
break;
case 5: w0(0xa0); w2(4); w2(6); w2(4); w3(0);
for (k=0;k<count/4;k++) ((u32 *)buf)[k] = r4l();
w2(4); w2(0); w2(4);
break;
}
}
static void kbic_write_block( PIA *pi, char * buf, int count )
{ int k;
switch (pi->mode) {
case 0:
case 1:
case 2: w0(0x90); w2(4); w2(6); w2(4);
for(k=0;k<count/2;k++) {
w0(buf[2*k+1]); w2(0); w2(4);
w0(buf[2*k]); w2(5); w2(4);
}
break;
case 3: w0(0xa0); w2(4); w2(6); w2(4); w3(0);
for(k=0;k<count/2;k++) {
w4(buf[2*k+1]);
w4(buf[2*k]);
}
w2(4); w2(0); w2(4);
break;
case 4: w0(0xa0); w2(4); w2(6); w2(4); w3(0);
for(k=0;k<count/2;k++) w4w(pi_swab16(buf,k));
w2(4); w2(0); w2(4);
break;
case 5: w0(0xa0); w2(4); w2(6); w2(4); w3(0);
for(k=0;k<count/4;k++) w4l(pi_swab32(buf,k));
w2(4); w2(0); w2(4);
break;
}
}
static void kbic_log_adapter( PIA *pi, char * scratch,
int verbose, char * chip )
{ char *mode_string[6] = {"4-bit","5/3","8-bit",
"EPP-8","EPP_16","EPP-32"};
printk("%s: kbic %s, KingByte %s at 0x%x, ",
pi->device,KBIC_VERSION,chip,pi->port);
printk("mode %d (%s), delay %d\n",pi->mode,
mode_string[pi->mode],pi->delay);
}
static void k951_log_adapter( PIA *pi, char * scratch, int verbose )
{ kbic_log_adapter(pi,scratch,verbose,"KBIC-951A");
}
static void k971_log_adapter( PIA *pi, char * scratch, int verbose )
{ kbic_log_adapter(pi,scratch,verbose,"KBIC-971A");
}
static struct pi_protocol k951 = {
.owner = THIS_MODULE,
.name = "k951",
.max_mode = 6,
.epp_first = 3,
.default_delay = 1,
.max_units = 1,
.write_regr = kbic_write_regr,
.read_regr = kbic_read_regr,
.write_block = kbic_write_block,
.read_block = kbic_read_block,
.connect = k951_connect,
.disconnect = k951_disconnect,
.log_adapter = k951_log_adapter,
};
static struct pi_protocol k971 = {
.owner = THIS_MODULE,
.name = "k971",
.max_mode = 6,
.epp_first = 3,
.default_delay = 1,
.max_units = 1,
.write_regr = kbic_write_regr,
.read_regr = kbic_read_regr,
.write_block = kbic_write_block,
.read_block = kbic_read_block,
.connect = k971_connect,
.disconnect = k971_disconnect,
.log_adapter = k971_log_adapter,
};
static int __init kbic_init(void)
{
int rv;
rv = paride_register(&k951);
if (rv < 0)
return rv;
rv = paride_register(&k971);
if (rv < 0)
paride_unregister(&k951);
return rv;
}
static void __exit kbic_exit(void)
{
paride_unregister(&k951);
paride_unregister(&k971);
}
MODULE_LICENSE("GPL");
module_init(kbic_init)
module_exit(kbic_exit)
kbic.rar_V2
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