diff options
Diffstat (limited to 'drivers/block/paride/dstr.c')
| -rw-r--r-- | drivers/block/paride/dstr.c | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/drivers/block/paride/dstr.c b/drivers/block/paride/dstr.c deleted file mode 100644 index accc5c777cbb..000000000000 --- a/drivers/block/paride/dstr.c +++ /dev/null @@ -1,233 +0,0 @@ -/* - dstr.c (c) 1997-8 Grant R. Guenther <grant@torque.net> - Under the terms of the GNU General Public License. - - dstr.c is a low-level protocol driver for the - DataStor EP2000 parallel to IDE adapter chip. - -*/ - -/* Changes: - - 1.01 GRG 1998.05.06 init_proto, release_proto - -*/ - -#define DSTR_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" - -/* 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>>3)&0x07)|((~a>>4)&0x08)|((b<<1)&0x70)|((~b)&0x80)) - -#define P1 w2(5);w2(0xd);w2(5);w2(4); -#define P2 w2(5);w2(7);w2(5);w2(4); -#define P3 w2(6);w2(4);w2(6);w2(4); - -/* cont = 0 - access the IDE register file - cont = 1 - access the IDE command set -*/ - -static int cont_map[2] = { 0x20, 0x40 }; - -static int dstr_read_regr( PIA *pi, int cont, int regr ) - -{ int a, b, r; - - r = regr + cont_map[cont]; - - w0(0x81); P1; - if (pi->mode) { w0(0x11); } else { w0(1); } - P2; w0(r); P1; - - switch (pi->mode) { - - case 0: w2(6); a = r1(); w2(4); w2(6); b = r1(); w2(4); - return j44(a,b); - - case 1: w0(0); w2(0x26); a = r0(); w2(4); - return a; - - case 2: - case 3: - case 4: w2(0x24); a = r4(); w2(4); - return a; - - } - return -1; -} - -static void dstr_write_regr( PIA *pi, int cont, int regr, int val ) - -{ int r; - - r = regr + cont_map[cont]; - - w0(0x81); P1; - if (pi->mode >= 2) { w0(0x11); } else { w0(1); } - P2; w0(r); P1; - - switch (pi->mode) { - - case 0: - case 1: w0(val); w2(5); w2(7); w2(5); w2(4); - break; - - case 2: - case 3: - case 4: w4(val); - break; - } -} - -#define CCP(x) w0(0xff);w2(0xc);w2(4);\ - w0(0xaa);w0(0x55);w0(0);w0(0xff);w0(0x87);w0(0x78);\ - w0(x);w2(5);w2(4); - -static void dstr_connect ( PIA *pi ) - -{ pi->saved_r0 = r0(); - pi->saved_r2 = r2(); - w2(4); CCP(0xe0); w0(0xff); -} - -static void dstr_disconnect ( PIA *pi ) - -{ CCP(0x30); - w0(pi->saved_r0); - w2(pi->saved_r2); -} - -static void dstr_read_block( PIA *pi, char * buf, int count ) - -{ int k, a, b; - - w0(0x81); P1; - if (pi->mode) { w0(0x19); } else { w0(9); } - P2; w0(0x82); P1; P3; w0(0x20); P1; - - switch (pi->mode) { - - case 0: for (k=0;k<count;k++) { - w2(6); a = r1(); w2(4); - w2(6); b = r1(); w2(4); - buf[k] = j44(a,b); - } - break; - - case 1: w0(0); - for (k=0;k<count;k++) { - w2(0x26); buf[k] = r0(); w2(0x24); - } - w2(4); - break; - - case 2: w2(0x24); - for (k=0;k<count;k++) buf[k] = r4(); - w2(4); - break; - - case 3: w2(0x24); - for (k=0;k<count/2;k++) ((u16 *)buf)[k] = r4w(); - w2(4); - break; - - case 4: w2(0x24); - for (k=0;k<count/4;k++) ((u32 *)buf)[k] = r4l(); - w2(4); - break; - - } -} - -static void dstr_write_block( PIA *pi, char * buf, int count ) - -{ int k; - - w0(0x81); P1; - if (pi->mode) { w0(0x19); } else { w0(9); } - P2; w0(0x82); P1; P3; w0(0x20); P1; - - switch (pi->mode) { - - case 0: - case 1: for (k=0;k<count;k++) { - w2(5); w0(buf[k]); w2(7); - } - w2(5); w2(4); - break; - - case 2: w2(0xc5); - for (k=0;k<count;k++) w4(buf[k]); - w2(0xc4); - break; - - case 3: w2(0xc5); - for (k=0;k<count/2;k++) w4w(((u16 *)buf)[k]); - w2(0xc4); - break; - - case 4: w2(0xc5); - for (k=0;k<count/4;k++) w4l(((u32 *)buf)[k]); - w2(0xc4); - break; - - } -} - - -static void dstr_log_adapter( PIA *pi, char * scratch, int verbose ) - -{ char *mode_string[5] = {"4-bit","8-bit","EPP-8", - "EPP-16","EPP-32"}; - - printk("%s: dstr %s, DataStor EP2000 at 0x%x, ", - pi->device,DSTR_VERSION,pi->port); - printk("mode %d (%s), delay %d\n",pi->mode, - mode_string[pi->mode],pi->delay); - -} - -static struct pi_protocol dstr = { - .owner = THIS_MODULE, - .name = "dstr", - .max_mode = 5, - .epp_first = 2, - .default_delay = 1, - .max_units = 1, - .write_regr = dstr_write_regr, - .read_regr = dstr_read_regr, - .write_block = dstr_write_block, - .read_block = dstr_read_block, - .connect = dstr_connect, - .disconnect = dstr_disconnect, - .log_adapter = dstr_log_adapter, -}; - -static int __init dstr_init(void) -{ - return paride_register(&dstr); -} - -static void __exit dstr_exit(void) -{ - paride_unregister(&dstr); -} - -MODULE_LICENSE("GPL"); -module_init(dstr_init) -module_exit(dstr_exit) |