summaryrefslogtreecommitdiff
path: root/drivers/block/paride/on26.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/block/paride/on26.c')
-rw-r--r--drivers/block/paride/on26.c319
1 files changed, 0 insertions, 319 deletions
diff --git a/drivers/block/paride/on26.c b/drivers/block/paride/on26.c
deleted file mode 100644
index 95ba256921f2..000000000000
--- a/drivers/block/paride/on26.c
+++ /dev/null
@@ -1,319 +0,0 @@
-/*
- on26.c (c) 1997-8 Grant R. Guenther <grant@torque.net>
- Under the terms of the GNU General Public License.
-
- on26.c is a low-level protocol driver for the
- OnSpec 90c26 parallel to IDE adapter chip.
-
-*/
-
-/* Changes:
-
- 1.01 GRG 1998.05.06 init_proto, release_proto
- 1.02 GRG 1998.09.23 updates for the -E rev chip
- 1.03 GRG 1998.12.14 fix for slave drives
- 1.04 GRG 1998.12.20 yet another bug fix
-
-*/
-
-#define ON26_VERSION "1.04"
-
-#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"
-
-/* mode codes: 0 nybble reads, 8-bit writes
- 1 8-bit reads and writes
- 2 8-bit EPP mode
- 3 EPP-16
- 4 EPP-32
-*/
-
-#define j44(a,b) (((a>>4)&0x0f)|(b&0xf0))
-
-#define P1 w2(5);w2(0xd);w2(5);w2(0xd);w2(5);w2(4);
-#define P2 w2(5);w2(7);w2(5);w2(4);
-
-/* cont = 0 - access the IDE register file
- cont = 1 - access the IDE command set
-*/
-
-static int on26_read_regr( PIA *pi, int cont, int regr )
-
-{ int a, b, r;
-
- r = (regr<<2) + 1 + cont;
-
- switch (pi->mode) {
-
- case 0: w0(1); P1; w0(r); P2; w0(0); P1;
- w2(6); a = r1(); w2(4);
- w2(6); b = r1(); w2(4);
- w2(6); w2(4); w2(6); w2(4);
- return j44(a,b);
-
- case 1: w0(1); P1; w0(r); P2; w0(0); P1;
- w2(0x26); a = r0(); w2(4); w2(0x26); w2(4);
- return a;
-
- case 2:
- case 3:
- case 4: w3(1); w3(1); w2(5); w4(r); w2(4);
- w3(0); w3(0); w2(0x24); a = r4(); w2(4);
- w2(0x24); (void)r4(); w2(4);
- return a;
-
- }
- return -1;
-}
-
-static void on26_write_regr( PIA *pi, int cont, int regr, int val )
-
-{ int r;
-
- r = (regr<<2) + 1 + cont;
-
- switch (pi->mode) {
-
- case 0:
- case 1: w0(1); P1; w0(r); P2; w0(0); P1;
- w0(val); P2; w0(val); P2;
- break;
-
- case 2:
- case 3:
- case 4: w3(1); w3(1); w2(5); w4(r); w2(4);
- w3(0); w3(0);
- w2(5); w4(val); w2(4);
- w2(5); w4(val); w2(4);
- break;
- }
-}
-
-#define CCP(x) w0(0xfe);w0(0xaa);w0(0x55);w0(0);w0(0xff);\
- w0(0x87);w0(0x78);w0(x);w2(4);w2(5);w2(4);w0(0xff);
-
-static void on26_connect ( PIA *pi )
-
-{ int x;
-
- pi->saved_r0 = r0();
- pi->saved_r2 = r2();
-
- CCP(0x20);
- x = 8; if (pi->mode) x = 9;
-
- w0(2); P1; w0(8); P2;
- w0(2); P1; w0(x); P2;
-}
-
-static void on26_disconnect ( PIA *pi )
-
-{ if (pi->mode >= 2) { w3(4); w3(4); w3(4); w3(4); }
- else { w0(4); P1; w0(4); P1; }
- CCP(0x30);
- w0(pi->saved_r0);
- w2(pi->saved_r2);
-}
-
-#define RESET_WAIT 200
-
-static int on26_test_port( PIA *pi) /* hard reset */
-
-{ int i, m, d, x=0, y=0;
-
- pi->saved_r0 = r0();
- pi->saved_r2 = r2();
-
- d = pi->delay;
- m = pi->mode;
- pi->delay = 5;
- pi->mode = 0;
-
- w2(0xc);
-
- CCP(0x30); CCP(0);
-
- w0(0xfe);w0(0xaa);w0(0x55);w0(0);w0(0xff);
- i = ((r1() & 0xf0) << 4); w0(0x87);
- i |= (r1() & 0xf0); w0(0x78);
- w0(0x20);w2(4);w2(5);
- i |= ((r1() & 0xf0) >> 4);
- w2(4);w0(0xff);
-
- if (i == 0xb5f) {
-
- w0(2); P1; w0(0); P2;
- w0(3); P1; w0(0); P2;
- w0(2); P1; w0(8); P2; udelay(100);
- w0(2); P1; w0(0xa); P2; udelay(100);
- w0(2); P1; w0(8); P2; udelay(1000);
-
- on26_write_regr(pi,0,6,0xa0);
-
- for (i=0;i<RESET_WAIT;i++) {
- on26_write_regr(pi,0,6,0xa0);
- x = on26_read_regr(pi,0,7);
- on26_write_regr(pi,0,6,0xb0);
- y = on26_read_regr(pi,0,7);
- if (!((x&0x80)||(y&0x80))) break;
- mdelay(100);
- }
-
- if (i == RESET_WAIT)
- printk("on26: Device reset failed (%x,%x)\n",x,y);
-
- w0(4); P1; w0(4); P1;
- }
-
- CCP(0x30);
-
- pi->delay = d;
- pi->mode = m;
- w0(pi->saved_r0);
- w2(pi->saved_r2);
-
- return 5;
-}
-
-
-static void on26_read_block( PIA *pi, char * buf, int count )
-
-{ int k, a, b;
-
- switch (pi->mode) {
-
- case 0: w0(1); P1; w0(1); P2; w0(2); P1; w0(0x18); P2; w0(0); P1;
- udelay(10);
- for (k=0;k<count;k++) {
- w2(6); a = r1();
- w2(4); b = r1();
- buf[k] = j44(a,b);
- }
- w0(2); P1; w0(8); P2;
- break;
-
- case 1: w0(1); P1; w0(1); P2; w0(2); P1; w0(0x19); P2; w0(0); P1;
- udelay(10);
- for (k=0;k<count/2;k++) {
- w2(0x26); buf[2*k] = r0();
- w2(0x24); buf[2*k+1] = r0();
- }
- w0(2); P1; w0(9); P2;
- break;
-
- case 2: w3(1); w3(1); w2(5); w4(1); w2(4);
- w3(0); w3(0); w2(0x24);
- udelay(10);
- for (k=0;k<count;k++) buf[k] = r4();
- w2(4);
- break;
-
- case 3: w3(1); w3(1); w2(5); w4(1); w2(4);
- w3(0); w3(0); w2(0x24);
- udelay(10);
- for (k=0;k<count/2;k++) ((u16 *)buf)[k] = r4w();
- w2(4);
- break;
-
- case 4: w3(1); w3(1); w2(5); w4(1); w2(4);
- w3(0); w3(0); w2(0x24);
- udelay(10);
- for (k=0;k<count/4;k++) ((u32 *)buf)[k] = r4l();
- w2(4);
- break;
-
- }
-}
-
-static void on26_write_block( PIA *pi, char * buf, int count )
-
-{ int k;
-
- switch (pi->mode) {
-
- case 0:
- case 1: w0(1); P1; w0(1); P2;
- w0(2); P1; w0(0x18+pi->mode); P2; w0(0); P1;
- udelay(10);
- for (k=0;k<count/2;k++) {
- w2(5); w0(buf[2*k]);
- w2(7); w0(buf[2*k+1]);
- }
- w2(5); w2(4);
- w0(2); P1; w0(8+pi->mode); P2;
- break;
-
- case 2: w3(1); w3(1); w2(5); w4(1); w2(4);
- w3(0); w3(0); w2(0xc5);
- udelay(10);
- for (k=0;k<count;k++) w4(buf[k]);
- w2(0xc4);
- break;
-
- case 3: w3(1); w3(1); w2(5); w4(1); w2(4);
- w3(0); w3(0); w2(0xc5);
- udelay(10);
- for (k=0;k<count/2;k++) w4w(((u16 *)buf)[k]);
- w2(0xc4);
- break;
-
- case 4: w3(1); w3(1); w2(5); w4(1); w2(4);
- w3(0); w3(0); w2(0xc5);
- udelay(10);
- for (k=0;k<count/4;k++) w4l(((u32 *)buf)[k]);
- w2(0xc4);
- break;
-
- }
-
-}
-
-static void on26_log_adapter( PIA *pi, char * scratch, int verbose )
-
-{ char *mode_string[5] = {"4-bit","8-bit","EPP-8",
- "EPP-16","EPP-32"};
-
- printk("%s: on26 %s, OnSpec 90c26 at 0x%x, ",
- pi->device,ON26_VERSION,pi->port);
- printk("mode %d (%s), delay %d\n",pi->mode,
- mode_string[pi->mode],pi->delay);
-
-}
-
-static struct pi_protocol on26 = {
- .owner = THIS_MODULE,
- .name = "on26",
- .max_mode = 5,
- .epp_first = 2,
- .default_delay = 1,
- .max_units = 1,
- .write_regr = on26_write_regr,
- .read_regr = on26_read_regr,
- .write_block = on26_write_block,
- .read_block = on26_read_block,
- .connect = on26_connect,
- .disconnect = on26_disconnect,
- .test_port = on26_test_port,
- .log_adapter = on26_log_adapter,
-};
-
-static int __init on26_init(void)
-{
- return paride_register(&on26);
-}
-
-static void __exit on26_exit(void)
-{
- paride_unregister(&on26);
-}
-
-MODULE_LICENSE("GPL");
-module_init(on26_init)
-module_exit(on26_exit)
generated by cgit (git 2.34.1) at 2024-07-03 17:33:43 +0000