patch-2.4.0-test3 linux/include/linux/mtd/cfi.h

• Lines: 100
• Date: Tue Jul 4 10:12:34 2000
• Orig file: v2.4.0-test2/linux/include/linux/mtd/cfi.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.0-test2/linux/include/linux/mtd/cfi.h linux/include/linux/mtd/cfi.h
@@ -0,0 +1,99 @@
+
+/* Common Flash Interface structures 
+ * See http://support.intel.com/design/flash/technote/index.htm
+ * $Id: cfi.h,v 1.6 2000/07/03 13:29:16 dwmw2 Exp $
+ */
+
+#ifndef __MTD_CFI_H__
+#define __MTD_CFI_H__
+
+#include <linux/types.h>
+#include <linux/mtd/flashchip.h>
+
+/* NB: We keep these structures in memory in HOST byteorder, except
+ * where individually noted.
+ */
+
+/* Basic Query Structure */
+struct cfi_ident {
+  __u8  qry[3];
+  __u16 P_ID;
+  __u16 P_ADR;
+  __u16 A_ID;
+  __u16 A_ADR;
+  __u8  VccMin;
+  __u8  VccMax;
+  __u8  VppMin;
+  __u8  VppMax;
+  __u8  WordWriteTimeoutTyp;
+  __u8  BufWriteTimeoutTyp;
+  __u8  BlockEraseTimeoutTyp;
+  __u8  ChipEraseTimeoutTyp;
+  __u8  WordWriteTimeoutMax;
+  __u8  BufWriteTimeoutMax;
+  __u8  BlockEraseTimeoutMax;
+  __u8  ChipEraseTimeoutMax;
+  __u8  DevSize;
+  __u16 InterfaceDesc;
+  __u16 MaxBufWriteSize;
+  __u8  NumEraseRegions;
+  __u32 EraseRegionInfo[1]; /* Not host ordered */
+} __attribute__((packed));
+
+/* Extended Query Structure for both PRI and ALT */
+
+struct cfi_extquery {
+  __u8  pri[3];
+  __u8  MajorVersion;
+  __u8  MinorVersion;
+} __attribute__((packed));
+
+/* Vendor-Specific PRI for Intel/Sharp Extended Command Set (0x0001) */
+
+struct cfi_pri_intelext {
+  __u8  pri[3];
+  __u8  MajorVersion;
+  __u8  MinorVersion;
+  __u32 FeatureSupport;
+  __u8  SuspendCmdSupport;
+  __u16 BlkStatusRegMask;
+  __u8  VccOptimal;
+  __u8  VppOptimal;
+} __attribute__((packed));
+
+struct cfi_pri_query {
+  __u8  NumFields;
+  __u32 ProtField[1]; /* Not host ordered */
+} __attribute__((packed));
+
+struct cfi_bri_query {
+  __u8  PageModeReadCap;
+  __u8  NumFields;
+  __u32 ConfField[1]; /* Not host ordered */
+} __attribute__((packed));
+
+#define P_ID_NONE 0
+#define P_ID_INTEL_EXT 1
+#define P_ID_AMD_STD 2
+#define P_ID_INTEL_STD 3
+#define P_ID_AMD_EXT 4
+#define P_ID_MITSUBISHI_STD 256
+#define P_ID_MITSUBISHI_EXT 257
+#define P_ID_RESERVED 65535
+
+
+struct cfi_private {
+	__u16 cmdset;
+	void *cmdset_priv;
+	int interleave;
+	struct mtd_info *(*cmdset_setup)(struct map_info *);
+	struct cfi_ident cfiq; /* For now only one. We insist that all devs
+				  must be of the same type. */
+	int numchips;
+	unsigned long chipshift; /* Because they're of the same type */
+	struct flchip chips[0];  /* per-chip data structure for each chip */
+};
+
+#define MAX_CFI_CHIPS 8 /* Entirely arbitrary to avoid realloc() */
+
+#endif /* __MTD_CFI_H__ */