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Diffstat (limited to 'drivers/ata/pata_parport/kbic.c')
-rw-r--r--drivers/ata/pata_parport/kbic.c314
1 files changed, 162 insertions, 152 deletions
diff --git a/drivers/ata/pata_parport/kbic.c b/drivers/ata/pata_parport/kbic.c
index 8213e62f8f00..6023e071516d 100644
--- a/drivers/ata/pata_parport/kbic.c
+++ b/drivers/ata/pata_parport/kbic.c
@@ -1,16 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
- kbic.c (c) 1997-8 Grant R. Guenther <grant@torque.net>
- Under the terms of the GNU General Public License.
-
- This is a low-level driver for the KBIC-951A and KBIC-971A
- parallel to IDE adapter chips from KingByte Information Systems.
-
- The chips are almost identical, however, the wakeup code
- required for the 971A interferes with the correct operation of
- the 951A, so this driver registers itself twice, once for
- each chip.
-
-*/
+ * (c) 1997-1998 Grant R. Guenther <grant@torque.net>
+ *
+ * This is a low-level driver for the KBIC-951A and KBIC-971A
+ * parallel to IDE adapter chips from KingByte Information Systems.
+ *
+ * The chips are almost identical, however, the wakeup code
+ * required for the 971A interferes with the correct operation of
+ * the 951A, so this driver registers itself twice, once for
+ * each chip.
+ */
#include <linux/module.h>
#include <linux/init.h>
@@ -21,212 +20,223 @@
#include <asm/io.h>
#include "pata_parport.h"
-#define r12w() (delay_p,inw(pi->port+1)&0xffff)
+#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))
+#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 };
+/*
+ * 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(struct pi_adapter *pi, int cont, int regr)
+{
+ int a, b, s;
-{ int a, b, s;
-
- s = cont_map[cont];
+ 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);
+ 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);
+ case 2:
+ w0(regr | 0x08 | s); w2(4); w2(6); w2(4); w2(0xa5); w2(0xa1);
a = r0(); w2(4);
- return a;
-
+ return a;
case 3:
case 4:
- case 5: w0(0x20|s); w2(4); w2(6); w2(4); w3(regr);
+ 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(struct pi_adapter *pi, int cont, int regr, int val)
+{
+ int s = cont_map[cont];
-{ 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);
+ 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);
+ case 5:
+ w0(0x20 | s); w2(4); w2(6); w2(4); w3(regr);
w4(val); w4(val);
w2(4); w2(0); w2(4);
- break;
-
+ break;
}
}
static void k951_connect(struct pi_adapter *pi)
-
-{ pi->saved_r0 = r0();
- pi->saved_r2 = r2();
- w2(4);
+{
+ pi->saved_r0 = r0();
+ pi->saved_r2 = r2();
+ w2(4);
}
static void k951_disconnect(struct pi_adapter *pi)
-
-{ w0(pi->saved_r0);
- w2(pi->saved_r2);
+{
+ 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);
+#define CCP(x) \
+ do { \
+ w2(0xc4); w0(0xaa); w0(0x55); \
+ w0(0); w0(0xff); w0(0x87); \
+ w0(0x78); w0(x); w2(0xc5); \
+ w2(0xc4); w0(0xff); \
+ } while (0)
static void k971_connect(struct pi_adapter *pi)
-
-{ pi->saved_r0 = r0();
- pi->saved_r2 = r2();
+{
+ pi->saved_r0 = r0();
+ pi->saved_r2 = r2();
CCP(0x20);
- w2(4);
+ w2(4);
}
static void k971_disconnect(struct pi_adapter *pi)
-
-{ CCP(0x30);
+{
+ CCP(0x30);
w0(pi->saved_r0);
- w2(pi->saved_r2);
+ w2(pi->saved_r2);
}
-/* counts must be congruent to 0 MOD 4, but all known applications
- have this property.
-*/
-
+/*
+ * count must be congruent to 0 MOD 4, but all known applications
+ *have this property.
+ */
static void kbic_read_block(struct pi_adapter *pi, char *buf, int count)
+{
+ int k, a, b;
-{ 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);
+ 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());
+ }
+ break;
+ case 1:
+ w0(0xb8); w2(4); w2(6); w2(4);
+ for (k = 0; k < count / 4; k++) {
+ w0(0xb8);
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;
-
-
- }
+ 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(struct pi_adapter *pi, char *buf, int count)
+{
+ int k;
-{ 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);
+ 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]);
- }
+ 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);
+ case 4:
+ w0(0xa0); w2(4); w2(6); w2(4); w3(0);
for (k = 0; k < count / 2; k++)
w4w(swab16(((u16 *)buf)[k]));
- w2(4); w2(0); w2(4);
- break;
-
- case 5: w0(0xa0); w2(4); w2(6); w2(4); w3(0);
+ 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(swab16(((u16 *)buf)[2 * k]) |
swab16(((u16 *)buf)[2 * k + 1]) << 16);
- w2(4); w2(0); w2(4);
- break;
-
- }
-
+ w2(4); w2(0); w2(4);
+ break;
+ }
}
static void kbic_log_adapter(struct pi_adapter *pi, char *chip)
-
-{ char *mode_string[6] = {"4-bit","5/3","8-bit",
- "EPP-8","EPP_16","EPP-32"};
+{
+ char *mode[6] = { "4-bit", "5/3", "8-bit", "EPP-8", "EPP_16", "EPP-32"};
dev_info(&pi->dev, "KingByte %s at 0x%x, mode %d (%s), delay %d\n",
- chip, pi->port, pi->mode, mode_string[pi->mode], pi->delay);
+ chip, pi->port, pi->mode, mode[pi->mode], pi->delay);
}
static void k951_log_adapter(struct pi_adapter *pi)
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-12 19:52:29 +0300