patch-1.3.94 linux/include/asm-m68k/ide.h

• Lines: 222
• Date: Tue Apr 9 00:13:55 1996
• Orig file: v1.3.93/linux/include/asm-m68k/ide.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.93/linux/include/asm-m68k/ide.h linux/include/asm-m68k/ide.h
@@ -0,0 +1,221 @@
+#ifndef _M68K_IDE_H
+#define _M68K_IDE_H
+
+/* Copyright(c) 1996 Kars de Jong */
+/* Based on the ide driver from 1.2.13pl8 */
+
+#include <linux/config.h>
+
+#ifdef CONFIG_AMIGA
+#include <asm/amigahw.h>
+#include <asm/amihdreg.h>
+#include <asm/amigaints.h>
+#endif /* CONFIG_AMIGA */
+
+#ifdef CONFIG_ATARI
+#include <asm/atarihw.h>
+#include <asm/atarihdreg.h>
+#include <asm/atariints.h>
+#include <asm/atari_stdma.h>
+#endif /* CONFIG_ATARI */
+
+#include <asm/bootinfo.h>
+
+struct hd_regs_struct {
+  unsigned int hd_error,
+  hd_nsector,
+  hd_sector,
+  hd_lcyl,
+  hd_hcyl,
+  hd_select,
+  hd_status;
+};
+
+static struct hd_regs_struct hd_regs;
+static void probe_m68k_ide (void);
+
+/* Undefine these again, they were defined for the PC. */
+#undef IDE_ERROR_OFFSET
+#undef IDE_NSECTOR_OFFSET
+#undef IDE_SECTOR_OFFSET
+#undef IDE_LCYL_OFFSET
+#undef IDE_HCYL_OFFSET
+#undef IDE_SELECT_OFFSET
+#undef IDE_STATUS_OFFSET
+#undef IDE_FEATURE_OFFSET
+#undef IDE_COMMAND_OFFSET
+#undef SELECT_DRIVE
+
+#define IDE_ERROR_OFFSET	hd_regs.hd_error
+#define IDE_NSECTOR_OFFSET	hd_regs.hd_nsector
+#define IDE_SECTOR_OFFSET	hd_regs.hd_sector
+#define IDE_LCYL_OFFSET		hd_regs.hd_lcyl
+#define IDE_HCYL_OFFSET		hd_regs.hd_hcyl
+#define IDE_SELECT_OFFSET	hd_regs.hd_select
+#define IDE_STATUS_OFFSET	hd_regs.hd_status
+#define IDE_FEATURE_OFFSET	IDE_ERROR_OFFSET
+#define IDE_COMMAND_OFFSET	IDE_STATUS_OFFSET
+
+#undef SUPPORT_VLB_SYNC
+#define SUPPORT_VLB_SYNC 0
+
+#undef HD_DATA
+#define HD_DATA NULL
+
+#define SELECT_DRIVE(hwif,drive)  OUT_BYTE((drive)->select.all, hwif->io_base+IDE_SELECT_OFFSET);
+
+#define insl(data_reg, buffer, wcount) insw(data_reg, buffer, wcount<<1)
+#define outsl(data_reg, buffer, wcount) outsw(data_reg, buffer, wcount<<1)
+
+#define insw(port, buf, nr) \
+    if (nr % 16) \
+	__asm__ __volatile__ \
+	       ("movel %0,%/a0; \
+		 movel %1,%/a1; \
+		 movel %2,%/d6; \
+		 subql #1,%/d6; \
+	       1:movew %/a0@,%/a1@+; \
+		 dbra %/d6,1b" : \
+		: "g" (port), "g" (buf), "g" (nr) \
+		: "a0", "a1", "d6"); \
+    else \
+	__asm__ __volatile__ \
+	       ("movel %0,%/a0; \
+		 movel %1,%/a1; \
+		 movel %2,%/d6; \
+		 lsrl  #4,%/d6; \
+		 subql #1,%/d6; \
+	       1:movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 movew %/a0@,%/a1@+; \
+		 dbra %/d6,1b" : \
+		: "g" (port), "g" (buf), "g" (nr) \
+		: "a0", "a1", "d6");
+
+#define outsw(port, buf, nr) \
+    if (nr % 16) \
+	__asm__ __volatile__ \
+	       ("movel %0,%/a0; \
+		 movel %1,%/a1; \
+		 movel %2,%/d6; \
+		 subql #1,%/d6; \
+	       1:movew %/a1@+,%/a0@; \
+		 dbra %/d6,1b" : \
+		: "g" (port), "g" (buf), "g" (nr) \
+		: "a0", "a1", "d6"); \
+    else \
+	__asm__ __volatile__ \
+	       ("movel %0,%/a0; \
+		 movel %1,%/a1; \
+		 movel %2,%/d6; \
+		 lsrl  #4,%/d6; \
+		 subql #1,%/d6; \
+	       1:movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 movew %/a1@+,%/a0@; \
+		 dbra %/d6,1b" : \
+		: "g" (port), "g" (buf), "g" (nr) \
+		: "a0", "a1", "d6");
+
+#define T_CHAR          (0x0000)        /* char:  don't touch  */
+#define T_SHORT         (0x4000)        /* short: 12 -> 21     */
+#define T_INT           (0x8000)        /* int:   1234 -> 4321 */
+#define T_TEXT          (0xc000)        /* text:  12 -> 21     */
+
+#define T_MASK_TYPE     (0xc000)
+#define T_MASK_COUNT    (0x3fff)
+
+#define D_CHAR(cnt)     (T_CHAR  | (cnt))
+#define D_SHORT(cnt)    (T_SHORT | (cnt))
+#define D_INT(cnt)      (T_INT   | (cnt))
+#define D_TEXT(cnt)     (T_TEXT  | (cnt))
+
+static u_short driveid_types[] = {
+	D_SHORT(10),	/* config - vendor2 */
+	D_TEXT(20),	/* serial_no */
+	D_SHORT(3),	/* buf_type - ecc_bytes */
+	D_TEXT(48),	/* fw_rev - model */
+	D_CHAR(2),	/* max_multsect - vendor3 */
+	D_SHORT(1),	/* dword_io */
+	D_CHAR(2),	/* vendor4 - capability */
+	D_SHORT(1),	/* reserved50 */
+	D_CHAR(4),	/* vendor5 - tDMA */
+	D_SHORT(4),	/* field_valid - cur_sectors */
+	D_INT(1),	/* cur_capacity */
+	D_CHAR(2),	/* multsect - multsect_valid */
+	D_INT(1),	/* lba_capacity */
+	D_SHORT(194)	/* dma_1word - reservedyy */
+};
+
+#define num_driveid_types       (sizeof(driveid_types)/sizeof(*driveid_types))
+
+static __inline__ void big_endianize_driveid(struct hd_driveid *id)
+{
+   u_char *p = (u_char *)id;
+   int i, j, cnt;
+   u_char t;
+
+   for (i = 0; i < num_driveid_types; i++) {
+      cnt = driveid_types[i] & T_MASK_COUNT;
+      switch (driveid_types[i] & T_MASK_TYPE) {
+         case T_CHAR:
+            p += cnt;
+            break;
+         case T_SHORT:
+            for (j = 0; j < cnt; j++) {
+               t = p[0];
+               p[0] = p[1];
+               p[1] = t;
+               p += 2;
+            }
+            break;
+         case T_INT:
+            for (j = 0; j < cnt; j++) {
+               t = p[0];
+               p[0] = p[3];
+               p[3] = t;
+               t = p[1];
+               p[1] = p[2];
+               p[2] = t;
+               p += 4;
+            }
+            break;
+         case T_TEXT:
+            for (j = 0; j < cnt; j += 2) {
+               t = p[0];
+               p[0] = p[1];
+               p[1] = t;
+               p += 2;
+            }
+            break;
+      }
+   }
+}
+
+#endif /* _M68K_IDE_H */