patch-2.4.21 linux-2.4.21/include/asm-m68k/ide.h

• Lines: 371
• Date: 2003-06-13 07:51:38.000000000 -0700
• Orig file: linux-2.4.20/include/asm-m68k/ide.h
• Orig date: 2002-08-02 17:39:45.000000000 -0700

diff -urN linux-2.4.20/include/asm-m68k/ide.h linux-2.4.21/include/asm-m68k/ide.h
@@ -66,7 +66,9 @@
  * Set up a hw structure for a specified data port, control port and IRQ.
  * This should follow whatever the default interface uses.
  */
-static __inline__ void ide_init_hwif_ports(hw_regs_t *hw, ide_ioreg_t data_port, ide_ioreg_t ctrl_port, int *irq)
+static __inline__ void ide_init_hwif_ports(hw_regs_t *hw,
+					   ide_ioreg_t data_port,
+					   ide_ioreg_t ctrl_port, int *irq)
 {
 	if (data_port || ctrl_port)
 		printk("ide_init_hwif_ports: must not be called\n");
@@ -80,307 +82,94 @@
 {
 }
 
-typedef union {
-	unsigned all			: 8;	/* all of the bits together */
-	struct {
-		unsigned bit7		: 1;	/* always 1 */
-		unsigned lba		: 1;	/* using LBA instead of CHS */
-		unsigned bit5		: 1;	/* always 1 */
-		unsigned unit		: 1;	/* drive select number, 0 or 1 */
-		unsigned head		: 4;	/* always zeros here */
-	} b;
-} select_t;
-
-typedef union {
-	unsigned all			: 8;	/* all of the bits together */
-	struct {
-		unsigned HOB		: 1;	/* 48-bit address ordering */
-		unsigned reserved456	: 3;
-		unsigned bit3		: 1;	/* ATA-2 thingy */
-		unsigned SRST		: 1;	/* host soft reset bit */
-		unsigned nIEN		: 1;	/* device INTRQ to host */
-		unsigned bit0		: 1;
-	} b;
-} control_t;
-
-static __inline__ int ide_request_irq(unsigned int irq, void (*handler)(int, void *, struct pt_regs *),
-			unsigned long flags, const char *device, void *dev_id)
-{
-#ifdef CONFIG_AMIGA
-	if (MACH_IS_AMIGA)
-		return request_irq(irq, handler, 0, device, dev_id);
-#endif /* CONFIG_AMIGA */
-#ifdef CONFIG_Q40
-	if (MACH_IS_Q40)
-	  	return request_irq(irq, handler, 0, device, dev_id);
-#endif /* CONFIG_Q40*/
-#ifdef CONFIG_MAC
-	if (MACH_IS_MAC)
-		return request_irq(irq, handler, 0, device, dev_id);
-#endif /* CONFIG_MAC */
-	return 0;
-}
-
-static __inline__ void ide_free_irq(unsigned int irq, void *dev_id)
-{
-#ifdef CONFIG_AMIGA
-	if (MACH_IS_AMIGA)
-		free_irq(irq, dev_id);
-#endif /* CONFIG_AMIGA */
-#ifdef CONFIG_Q40
-	if (MACH_IS_Q40)
-	  	free_irq(irq, dev_id);
-#endif /* CONFIG_Q40*/
-#ifdef CONFIG_MAC
-	if (MACH_IS_MAC)
-		free_irq(irq, dev_id);
-#endif /* CONFIG_MAC */
-}
-
-/*
- * We should really implement those some day.
- */
-static __inline__ int ide_check_region (ide_ioreg_t from, unsigned int extent)
-{
-	return 0;
-}
-
-static __inline__ void ide_request_region (ide_ioreg_t from, unsigned int extent, const char *name)
-{
-#ifdef CONFIG_Q40
-        if (MACH_IS_Q40)
-            request_region((q40ide_ioreg_t)from,extent,name);
-#endif
-}
-
-static __inline__ void ide_release_region (ide_ioreg_t from, unsigned int extent)
-{
-#ifdef CONFIG_Q40
-        if (MACH_IS_Q40)
-            release_region((q40ide_ioreg_t)from,extent);
-#endif
-}
-
-#undef SUPPORT_SLOW_DATA_PORTS
-#define SUPPORT_SLOW_DATA_PORTS 0
-
-#undef SUPPORT_VLB_SYNC
-#define SUPPORT_VLB_SYNC 0
-
-/* this definition is used only on startup .. */
-#undef HD_DATA
-#define HD_DATA NULL
-
-
 /*
- * get rid of defs from io.h
- * ide still has some private and conflicting versions
+ * Get rid of defs from io.h - ide has its private and conflicting versions
+ * Since so far no single m68k platform uses ISA/PCI I/O space for IDE, we
+ * always use the `raw' MMIO versions
  */
+#undef inb
+#undef inw
 #undef insw
+#undef inl
 #undef insl
+#undef outb
+#undef outw
 #undef outsw
+#undef outl
 #undef outsl
-
-
-/*
- * define IO method and translation,
- * so far only Q40 has ide-if on ISA
- */
-#ifndef CONFIG_Q40
-
-#define ADDR_TRANS_B(_addr_) (_addr_)
-#define ADDR_TRANS_W(_addr_) (_addr_)
-
-#else
-
-#define ADDR_TRANS_B(_addr_) (MACH_IS_Q40 ? ((unsigned char *)Q40_ISA_IO_B(_addr_)) : (_addr_))
-#define ADDR_TRANS_W(_addr_) (MACH_IS_Q40 ? ((unsigned char *)Q40_ISA_IO_W(_addr_)) : (_addr_))
-#endif
-
-#define HAVE_ARCH_OUT_BYTE
-
-#define OUT_BYTE(v,p)	out_8(ADDR_TRANS_B((p)), (v))
-#define OUT_WORD(v,p)	out_be16(ADDR_TRANS_W((p)), (v))
-
-#define HAVE_ARCH_IN_BYTE
-
-#define IN_BYTE(p)	in_8(ADDR_TRANS_B((p)))
-#define IN_WORD(p)	in_be16(ADDR_TRANS_W((p)))
-
-#define insw(port, buf, nr) raw_insw(ADDR_TRANS_W(port), buf, nr)
-#define outsw(port, buf, nr) raw_outsw(ADDR_TRANS_W(port), buf, nr)
-
-#define insl(data_reg, buffer, wcount) insw(data_reg, buffer, (wcount)<<1)
-#define outsl(data_reg, buffer, wcount) outsw(data_reg, buffer, (wcount)<<1)
-
-
+#undef readb
+#undef readw
+#undef readl
+#undef writeb
+#undef writew
+#undef writel
+
+#define inb				in_8
+#define inw				in_be16
+#define insw(port, addr, n)		raw_insw((u16 *)port, addr, n)
+#define inl				in_be32
+#define insl(port, addr, n)		raw_insl((u32 *)port, addr, n)
+#define outb(val, port)			out_8(port, val)
+#define outw(val, port)			out_be16(port, val)
+#define outsw(port, addr, n)		raw_outsw((u16 *)port, addr, n)
+#define outl(val, port)			out_be32(port, val)
+#define outsl(port, addr, n)		raw_outsl((u32 *)port, addr, n)
+#define readb				in_8
+#define readw				in_be16
+#define __ide_mm_insw(port, addr, n)	raw_insw((u16 *)port, addr, n)
+#define readl				in_be32
+#define __ide_mm_insl(port, addr, n)	raw_insl((u32 *)port, addr, n)
+#define writeb(val, port)		out_8(port, val)
+#define writew(val, port)		out_be16(port, val)
+#define __ide_mm_outsw(port, addr, n)	raw_outsw((u16 *)port, addr, n)
+#define writel(val, port)		out_be32(port, val)
+#define __ide_mm_outsl(port, addr, n)	raw_outsl((u32 *)port, addr, n)
 #if defined(CONFIG_ATARI) || defined(CONFIG_Q40)
+#define insw_swapw(port, addr, n)	raw_insw_swapw((u16 *)port, addr, n)
+#define outsw_swapw(port, addr, n)	raw_outsw_swapw((u16 *)port, addr, n)
+#endif
 
-#define insl_swapw(data_reg, buffer, wcount) \
-    insw_swapw(data_reg, buffer, (wcount)<<1)
-#define outsl_swapw(data_reg, buffer, wcount) \
-    outsw_swapw(data_reg, buffer, (wcount)<<1)
-
-#define insw_swapw(port, buf, nr) raw_insw_swapw(ADDR_TRANS_W(port), buf, nr)
-#define outsw_swapw(port, buf, nr) raw_outsw_swapw(ADDR_TRANS_W(port),buf,nr)
-
-#endif /* CONFIG_ATARI || CONFIG_Q40 */
-
-
-#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))
 
-/* Q40 and Atari have byteswapped IDE bus and since many interesting
+/* Q40 and Atari have byteswapped IDE busses and since many interesting
  * values in the identification string are text, chars and words they
- * happened to be almost correct without swapping.. However *_capacity 
+ * happened to be almost correct without swapping.. However *_capacity
  * is needed for drives over 8 GB. RZ */
 #if defined(CONFIG_Q40) || defined(CONFIG_ATARI)
 #define M68K_IDE_SWAPW  (MACH_IS_Q40 || MACH_IS_ATARI)
 #endif
 
-#if defined(CONFIG_AMIGA) || defined (CONFIG_MAC) || defined(M68K_IDE_SWAPW)
-static u_short driveid_types[] = {
-	D_SHORT(10),	/* config - vendor2 */
-	D_TEXT(20),	/* serial_no */
-	D_SHORT(3),	/* buf_type, buf_size - 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 - reserved */
-};
+#ifdef CONFIG_BLK_DEV_FALCON_IDE
+#define IDE_ARCH_LOCK
 
-#define num_driveid_types       (sizeof(driveid_types)/sizeof(*driveid_types))
-#endif /* CONFIG_AMIGA */
+extern int falconide_intr_lock;
 
-static __inline__ void ide_fix_driveid(struct hd_driveid *id)
+static __inline__ void ide_release_lock(void)
 {
-#if defined(CONFIG_AMIGA) || defined (CONFIG_MAC) || defined(M68K_IDE_SWAPW)
-   u_char *p = (u_char *)id;
-   int i, j, cnt;
-   u_char t;
-
-   if (!MACH_IS_AMIGA && !MACH_IS_MAC && !MACH_IS_Q40 && !MACH_IS_ATARI)
-   	return;
-#ifdef M68K_IDE_SWAPW
-   if (M68K_IDE_SWAPW)    /* fix bus byteorder first */
-      for (i=0; i < 512; i+=2) {
-	 t = p[i]; p[i] = p[i+1]; p[i+1] = t; 
-      }
-#endif
-   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 /* CONFIG_AMIGA */
-}
-
-static __inline__ void ide_release_lock (int *ide_lock)
-{
-#ifdef CONFIG_ATARI
 	if (MACH_IS_ATARI) {
-		if (*ide_lock == 0) {
+		if (falconide_intr_lock == 0) {
 			printk("ide_release_lock: bug\n");
 			return;
 		}
-		*ide_lock = 0;
+		falconide_intr_lock = 0;
 		stdma_release();
 	}
-#endif /* CONFIG_ATARI */
 }
 
-static __inline__ void ide_get_lock (int *ide_lock, void (*handler)(int, void *, struct pt_regs *), void *data)
+static __inline__ void ide_get_lock(void (*handler)(int, void *, struct pt_regs *), void *data)
 {
-#ifdef CONFIG_ATARI
 	if (MACH_IS_ATARI) {
-		if (*ide_lock == 0) {
+		if (falconide_intr_lock == 0) {
 			if (in_interrupt() > 0)
 				panic( "Falcon IDE hasn't ST-DMA lock in interrupt" );
 			stdma_lock(handler, data);
-			*ide_lock = 1;
+			falconide_intr_lock = 1;
 		}
 	}
-#endif /* CONFIG_ATARI */
 }
+#endif /* CONFIG_BLK_DEV_FALCON_IDE */
 
+#define IDE_ARCH_ACK_INTR
 #define ide_ack_intr(hwif)	((hwif)->hw.ack_intr ? (hwif)->hw.ack_intr(hwif) : 1)
 
-/*
- * On the Atari, we sometimes can't enable interrupts:
- */
-
-/* MSch: changed sti() to STI() wherever possible in ide.c; moved STI() def. 
- * to asm/ide.h 
- */
-/* The Atari interrupt structure strictly requires that the IPL isn't lowered
- * uncontrolled in an interrupt handler. In the concrete case, the IDE
- * interrupt is already a slow int, so the irq is already disabled at the time
- * the handler is called, and the IPL has been lowered to the minimum value
- * possible. To avoid going below that, STI() checks for being called inside
- * an interrupt, and in that case it does nothing. Hope that is reasonable and
- * works. (Roman)
- */
-#ifdef MACH_ATARI_ONLY
-#define	ide__sti()					\
-    do {						\
-	if (!in_interrupt()) __sti();			\
-    } while(0)
-#elif defined(CONFIG_ATARI)
-#define	ide__sti()						\
-    do {							\
-	if (!MACH_IS_ATARI || !in_interrupt()) sti();		\
-    } while(0)
-#else /* !defined(CONFIG_ATARI) */
-#define	ide__sti()	__sti()
-#endif
-
 #endif /* __KERNEL__ */
-
 #endif /* _M68K_IDE_H */