patch-2.1.53 linux/include/asm-sparc64/ide.h

• Lines: 264
• Date: Thu Sep 4 12:54:49 1997
• Orig file: v2.1.52/linux/include/asm-sparc64/ide.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.1.52/linux/include/asm-sparc64/ide.h linux/include/asm-sparc64/ide.h
@@ -0,0 +1,263 @@
+/* $Id: ide.h,v 1.4 1997/08/30 16:29:29 davem Exp $
+ * ide.h: Ultra/PCI specific IDE glue.
+ *
+ * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
+ */
+
+#ifndef _SPARC64_IDE_H
+#define _SPARC64_IDE_H
+
+#ifdef __KERNEL__
+
+typedef unsigned long ide_ioreg_t;
+
+#undef  MAX_HWIFS
+#define MAX_HWIFS	2
+
+extern int sparc64_ide_ports_known;
+extern ide_ioreg_t sparc64_ide_regbase[MAX_HWIFS];
+extern ide_ioreg_t sparc64_idedma_regbase; /* one for both channels */
+extern unsigned int sparc64_ide_irq;
+
+extern void sparc64_ide_probe(void);
+
+#define	ide_sti()	sti()
+
+static __inline__ int ide_default_irq(ide_ioreg_t base)
+{
+	if(sparc64_ide_ports_known == 0)
+		sparc64_ide_probe();
+	return sparc64_ide_irq;
+}
+
+static __inline__ ide_ioreg_t ide_default_io_base(int index)
+{
+	if(sparc64_ide_ports_known == 0)
+		sparc64_ide_probe();
+	return sparc64_ide_regbase[index];
+}
+
+static __inline__ void ide_init_hwif_ports(ide_ioreg_t *p, ide_ioreg_t base, int *irq)
+{
+	ide_ioreg_t port = base;
+	int i = 9;
+
+	while(i--)
+		*p++ = port++;
+	if(base == sparc64_ide_regbase[0])
+		*p = sparc64_idedma_regbase + 0x2;
+	else
+		*p = sparc64_idedma_regbase + 0xa;
+	if(irq != NULL)
+		*irq = sparc64_ide_irq;
+}
+
+typedef union {
+	unsigned int		all	: 8;	/* all of the bits together */
+	struct {
+		unsigned int	bit7	: 1;
+		unsigned int	lba	: 1;
+		unsigned int	bit5	: 1;
+		unsigned int	unit	: 1;
+		unsigned int	head	: 4;
+	} b;
+} select_t;
+
+static __inline__ int ide_request_irq(unsigned int irq,
+				      void (*handler)(int, void *, struct pt_regs *),
+				      unsigned long flags, const char *name, void *devid)
+{
+	return request_irq(irq, handler, SA_SHIRQ, name, devid);
+}
+
+static __inline__ void ide_free_irq(unsigned int irq, void *dev_id)
+{
+	free_irq(irq, dev_id);
+}
+
+static __inline__ int ide_check_region(ide_ioreg_t base, unsigned int size)
+{
+	return check_region(base, size);
+}
+
+static __inline__ void ide_request_region(ide_ioreg_t base, unsigned int size,
+					  const char *name)
+{
+	request_region(base, size, name);
+}
+
+static __inline__ void ide_release_region(ide_ioreg_t base, unsigned int size)
+{
+	release_region(base, size);
+}
+
+#undef  SUPPORT_SLOW_DATA_PORTS
+#define SUPPORT_SLOW_DATA_PORTS 0
+
+#undef  SUPPORT_VLB_SYNC
+#define SUPPORT_VLB_SYNC 0
+
+#undef  HD_DATA
+#define HD_DATA ((ide_ioreg_t)0)
+
+static __inline__ int ide_ack_intr(ide_ioreg_t status_port, ide_ioreg_t irq_port)
+{
+	unsigned char stat = inb(irq_port);
+
+	if(stat & 0x4) {
+		outb((inb(irq_port) & 0x60) | 4, irq_port);
+		return 1;
+	}
+	return 0;
+}
+
+/* From m68k code... */
+
+#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) ide_insw((port), (buf), (nr))
+#define outsw(port, buf, nr) ide_outsw((port), (buf), (nr))
+
+static __inline__ void ide_insw(unsigned long port,
+				void *dst,
+				unsigned long count)
+{
+	volatile unsigned short *data_port;
+	u16 *ps = dst;
+	u32 *pi;
+
+	data_port = (volatile unsigned short *)port;
+
+	if(((u64)ps) & 0x2) {
+		*ps++ = *data_port;
+		count--;
+	}
+	pi = (u32 *)ps;
+	while(count >= 2) {
+		u32 w;
+
+		w  = (*data_port) << 16;
+		w |= (*data_port);
+		*pi++ = w;
+		count -= 2;
+	}
+	ps = (u16 *)pi;
+	if(count)
+		*ps = *data_port;
+}
+
+static __inline__ void ide_outsw(unsigned long port,
+				 const void *src,
+				 unsigned long count)
+{
+	volatile unsigned short *data_port;
+	const u16 *ps = src;
+	const u32 *pi;
+
+	data_port = (volatile unsigned short *)port;
+
+	if(((u64)src) & 0x2) {
+		*data_port = *ps++;
+		count--;
+	}
+	pi = (const u32 *)ps;
+	while(count >= 2) {
+		u32 w;
+
+		w = *pi++;
+		*data_port = (w >> 16);
+		*data_port = w;
+		count -= 2;
+	}
+	ps = (const u16 *)pi;
+	if(count)
+		*data_port = *ps;
+}
+
+#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 ide_fix_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;
+		};
+	}
+}
+
+static __inline__ void ide_release_lock (int *ide_lock)
+{
+}
+
+static __inline__ void ide_get_lock (int *ide_lock, void (*handler)(int, void *, struct pt_regs *), void *data)
+{
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* _SPARC64_IDE_H */