X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=mtdemul%2Fnandemul2k.c;h=4d25aaabf08fc0b15d246d98a7c48fac4dbe3b5c;hp=7ee030836b08d4910ab39067231e4acb98a0b823;hb=4e2762fe2c79da366785c4fc9cf49d7353197a39;hpb=f63988705f6f79c3e721dcdc76b0ab1ea93ab110

diff --git a/mtdemul/nandemul2k.c b/mtdemul/nandemul2k.c
index 7ee0308..4d25aaa 100644
--- a/mtdemul/nandemul2k.c
+++ b/mtdemul/nandemul2k.c
@@ -1,7 +1,7 @@
 /*
- * YAFFS: Yet another FFS. A NAND-flash specific file system. 
+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
  *
- * Copyright (C) 2002 Aleph One Ltd.
+ * Copyright (C) 2002-2007 Aleph One Ltd.
  *   for Toby Churchill Ltd and Brightstar Engineering
  *
  * Created by Charles Manning <charles@aleph1.co.uk>
@@ -9,8 +9,9 @@
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
- *
- *
+ */
+
+/*
  *  This version hacked for emulating 2kpage NAND for YAFFS2 testing.
  */
 
@@ -44,13 +45,14 @@
 
 
 
-#define EM_SIZE_IN_MEG 4
-#define PAGE_DATA_SIZE  (2048)
-#define PAGE_SPARE_SIZE (64)
-#define PAGES_PER_BLOCK (64)
 #define NAND_SHIFT      (11)   // Shifter for 2k
+#define PAGE_DATA_SIZE  (1 << NAND_SHIFT)
+#define PAGE_SPARE_SIZE (64)
+#define BLK_SHIFT	6
+#define PAGES_PER_BLOCK (1 << BLK_SHIFT)	// = 64
 
 
+#define EM_SIZE_IN_MEG 4
 #define EM_SIZE_IN_BYTES (EM_SIZE_IN_MEG * (1<<20))
 
 #define PAGE_TOTAL_SIZE (PAGE_DATA_SIZE+PAGE_SPARE_SIZE)
@@ -253,7 +255,7 @@ int nandemul2k_GetNumberOfBlocks(void) {return nandemul2k_CalcNBlocks();}
 
 
 
-int nandemul2k_ReadId(__u8 *vendorId, __u8 *deviceId)
+static int nandemul2k_ReadId(__u8 *vendorId, __u8 *deviceId)
 {
 	*vendorId = 'Y'; 
 	*deviceId = '2';
@@ -262,7 +264,7 @@ int nandemul2k_ReadId(__u8 *vendorId, __u8 *deviceId)
 }
 
 
-int nandemul2k_ReadStatus(__u8 *status)
+static int nandemul2k_ReadStatus(__u8 *status)
 {
 		*status = 0;
 		return 1;
@@ -286,11 +288,16 @@ static int nand_write (struct mtd_info *mtd, loff_t to, size_t len,
 			size_t *retlen, const u_char *buf);
 static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
 				size_t *retlen, const u_char *buf,
-				const u_char *oob_buf, struct nand_oobinfo *dummy);
+				u_char *oob_buf, struct nand_oobinfo *dummy);
 static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len,
 				size_t *retlen, const u_char *buf);
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,7))
+static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs,
+				unsigned long count, loff_t to, size_t *retlen);
+#else
 static int nand_writev (struct mtd_info *mtd, const struct iovec *vecs,
 				unsigned long count, loff_t to, size_t *retlen);
+#endif
 static int nand_erase (struct mtd_info *mtd, struct erase_info *instr);
 static void nand_sync (struct mtd_info *mtd);
 
@@ -413,7 +420,7 @@ static int nand_write (struct mtd_info *mtd, loff_t to, size_t len,
  */
 static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
 				size_t *retlen, const u_char *buf,
-				const u_char *oob_buf, struct nand_oobinfo *dummy)
+				u_char *oob_buf, struct nand_oobinfo *dummy)
 {
 
 	int 	start, page;
@@ -509,8 +516,13 @@ static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len,
 /*
  * NAND write with iovec
  */
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,7))
+static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs,
+				unsigned long count, loff_t to, size_t *retlen)
+#else
 static int nand_writev (struct mtd_info *mtd, const struct iovec *vecs,
 				unsigned long count, loff_t to, size_t *retlen)
+#endif
 {
 	return -EINVAL;
 }
@@ -547,8 +559,8 @@ static int nand_erase (struct mtd_info *mtd, struct erase_info *instr)
 		return -EINVAL;
 	}
 
-	nBlocks = instr->len >> (NAND_SHIFT + 5);
-	block = instr->addr >> (NAND_SHIFT + 5);
+	nBlocks = instr->len >> (NAND_SHIFT + BLK_SHIFT);
+	block = instr->addr >> (NAND_SHIFT + BLK_SHIFT);
 
 	for(i = 0; i < nBlocks; i++)
 	{
@@ -564,12 +576,12 @@ static int nand_erase (struct mtd_info *mtd, struct erase_info *instr)
 }
 
 
-int nand_block_isbad(struct mtd_info *mtd,int blockNo)
+static int nand_block_isbad(struct mtd_info *mtd, loff_t ofs)
 {
 	return 0;
 }
 
-int nand_block_markbad(struct mtd_info *mtd, int blockNo)
+static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
 	return 0;
 }
@@ -587,7 +599,7 @@ static void nand_sync (struct mtd_info *mtd)
 /*
  * Scan for the NAND device
  */
-int nand_scan (struct mtd_info *mtd,int nchips)
+static int nandemul2k_scan (struct mtd_info *mtd,int nchips)
 {
 	mtd->oobblock = PAGE_DATA_SIZE;
 	mtd->oobsize =  PAGE_SPARE_SIZE;
@@ -620,6 +632,8 @@ int nand_scan (struct mtd_info *mtd,int nchips)
 	mtd->suspend = NULL;
 	mtd->resume = NULL;
 
+	mtd->name = "NANDemul2k";
+
 	/* Return happy */
 	return 0;
 }
@@ -638,9 +652,9 @@ __setup("sizeInMB=",sizeInMB);
 
 static struct mtd_partition nandemul2k_partition[] =
 {
-	{ name: "NANDemul partition 1",
-	  offset:  0,
-	  size: 0 },
+	{ .name		= "NANDemul partition 1",
+	  .offset	= 0,
+	  .size		= 0 },
 };
 
 static int nPartitions = sizeof(nandemul2k_partition)/sizeof(nandemul2k_partition[0]);
@@ -655,7 +669,7 @@ int __init nandemul2k_init (void)
 	
 	CheckInit();
 
-	nand_scan(&nandemul2k_mtd,1);
+	nandemul2k_scan(&nandemul2k_mtd,1);
 
 	// Build the partition table