/*
- * $Id: map_funcs.c,v 1.9 2004/07/13 22:33:15 dwmw2 Exp $
+ * $Id: map_funcs.c,v 1.2 2003/05/21 15:15:07 dwmw2 Exp $
*
* Out-of-line map I/O functions for simple maps when CONFIG_COMPLEX_MAPPINGS
* is enabled.
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <asm/io.h>
#include <linux/mtd/map.h>
+#include <linux/mtd/cfi.h>
-static map_word simple_map_read(struct map_info *map, unsigned long ofs)
+static u8 simple_map_read8(struct map_info *map, unsigned long ofs)
{
- return inline_map_read(map, ofs);
+ return __raw_readb(map->virt + ofs);
}
-static void simple_map_write(struct map_info *map, const map_word datum, unsigned long ofs)
+static u16 simple_map_read16(struct map_info *map, unsigned long ofs)
{
- inline_map_write(map, datum, ofs);
+ return __raw_readw(map->virt + ofs);
+}
+
+static u32 simple_map_read32(struct map_info *map, unsigned long ofs)
+{
+ return __raw_readl(map->virt + ofs);
+}
+
+static u64 simple_map_read64(struct map_info *map, unsigned long ofs)
+{
+#ifndef CONFIG_MTD_CFI_B8 /* 64-bit mappings */
+ BUG();
+ return 0;
+#else
+ return __raw_readll(map->virt + ofs);
+#endif
+}
+
+static void simple_map_write8(struct map_info *map, u8 datum, unsigned long ofs)
+{
+ __raw_writeb(datum, map->virt + ofs);
+ mb();
+}
+
+static void simple_map_write16(struct map_info *map, u16 datum, unsigned long ofs)
+{
+ __raw_writew(datum, map->virt + ofs);
+ mb();
+}
+
+static void simple_map_write32(struct map_info *map, u32 datum, unsigned long ofs)
+{
+ __raw_writel(datum, map->virt + ofs);
+ mb();
+}
+
+static void simple_map_write64(struct map_info *map, u64 datum, unsigned long ofs)
+{
+#ifndef CONFIG_MTD_CFI_B8 /* 64-bit mappings */
+ BUG();
+#else
+ __raw_writell(datum, map->virt + ofs);
+ mb();
+#endif /* CFI_B8 */
}
static void simple_map_copy_from(struct map_info *map, void *to, unsigned long from, ssize_t len)
{
- inline_map_copy_from(map, to, from, len);
+ memcpy_fromio(to, map->virt + from, len);
}
static void simple_map_copy_to(struct map_info *map, unsigned long to, const void *from, ssize_t len)
{
- inline_map_copy_to(map, to, from, len);
+ memcpy_toio(map->virt + to, from, len);
}
void simple_map_init(struct map_info *map)
{
- BUG_ON(!map_bankwidth_supported(map->bankwidth));
-
- map->read = simple_map_read;
- map->write = simple_map_write;
+ map->read8 = simple_map_read8;
+ map->read16 = simple_map_read16;
+ map->read32 = simple_map_read32;
+ map->read64 = simple_map_read64;
+ map->write8 = simple_map_write8;
+ map->write16 = simple_map_write16;
+ map->write32 = simple_map_write32;
+ map->write64 = simple_map_write64;
map->copy_from = simple_map_copy_from;
map->copy_to = simple_map_copy_to;
}