/*======================================================================
- $Id: slram.c,v 1.36 2005/11/07 11:14:25 gleixner Exp $
-
This driver provides a method to access memory not used by the kernel
itself (i.e. if the kernel commandline mem=xxx is used). To actually
use slram at least mtdblock or mtdchar is required (for block or
#include <asm/uaccess.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
#include <linux/ptrace.h>
#include <linux/slab.h>
#include <linux/string.h>
static slram_mtd_list_t *slram_mtdlist = NULL;
static int slram_erase(struct mtd_info *, struct erase_info *);
-static int slram_point(struct mtd_info *, loff_t, size_t, size_t *, u_char **);
-static void slram_unpoint(struct mtd_info *, u_char *, loff_t, size_t);
+static int slram_point(struct mtd_info *, loff_t, size_t, size_t *, void **,
+ resource_size_t *);
+static void slram_unpoint(struct mtd_info *, loff_t, size_t);
static int slram_read(struct mtd_info *, loff_t, size_t, size_t *, u_char *);
static int slram_write(struct mtd_info *, loff_t, size_t, size_t *, const u_char *);
}
static int slram_point(struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char **mtdbuf)
+ size_t *retlen, void **virt, resource_size_t *phys)
{
slram_priv_t *priv = mtd->priv;
+ /* can we return a physical address with this driver? */
+ if (phys)
+ return -EINVAL;
+
if (from + len > mtd->size)
return -EINVAL;
- *mtdbuf = priv->start + from;
+ *virt = priv->start + from;
*retlen = len;
return(0);
}
-static void slram_unpoint(struct mtd_info *mtd, u_char *addr, loff_t from, size_t len)
+static void slram_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
{
}