patch-2.4.25 linux-2.4.25/include/asm-ppc64/nvram.h

• Lines: 51
• Date: 2004-02-18 05:36:32.000000000 -0800
• Orig file: linux-2.4.24/include/asm-ppc64/nvram.h
• Orig date: 2002-08-02 17:39:45.000000000 -0700

diff -urN linux-2.4.24/include/asm-ppc64/nvram.h linux-2.4.25/include/asm-ppc64/nvram.h
@@ -11,6 +11,12 @@
 #ifndef _PPC64_NVRAM_H
 #define _PPC64_NVRAM_H
 
+#define NVRW_CNT 0x20
+#define NVRAM_HEADER_LEN 16 /* sizeof(struct nvram_header) */
+#define NVRAM_BLOCK_LEN 16
+#define NVRAM_MAX_REQ (2080/NVRAM_BLOCK_LEN)
+#define NVRAM_MIN_REQ (1056/NVRAM_BLOCK_LEN)
+
 #define NVRAM_AS0  0x74
 #define NVRAM_AS1  0x75
 #define NVRAM_DATA 0x77
@@ -36,4 +42,37 @@
 #define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10)
 #endif
 
+#define NVRAM_SIG_SP	0x02	/* support processor */
+#define NVRAM_SIG_OF	0x50	/* open firmware config */
+#define NVRAM_SIG_FW	0x51	/* general firmware */
+#define NVRAM_SIG_HW	0x52	/* hardware (VPD) */
+#define NVRAM_SIG_SYS	0x70	/* system env vars */
+#define NVRAM_SIG_CFG	0x71	/* config data */
+#define NVRAM_SIG_ELOG	0x72	/* error log */
+#define NVRAM_SIG_VEND	0x7e	/* vendor defined */
+#define NVRAM_SIG_FREE	0x7f	/* Free space */
+#define NVRAM_SIG_OS	0xa0	/* OS defined */
+
+/* If change this size, then change the size of NVRAM_HEADER_LEN */
+struct nvram_header {
+	unsigned char signature;
+	unsigned char checksum;
+	unsigned short length;
+	char name[12];
+};
+
+struct nvram_partition {
+	struct list_head partition;
+	struct nvram_header header;
+	unsigned int index;
+};
+
+
+ssize_t read_nvram(char *buf, size_t count, loff_t *index);
+ssize_t write_nvram(char *buf, size_t count, loff_t *index);
+int write_error_log_nvram(char * buff, int length, unsigned int err_type);
+int read_error_log_nvram(char * buff, int length, unsigned int * err_type);
+int clear_error_log_nvram(void);
+void print_nvram_partitions(char * label);
+
 #endif /* _PPC64_NVRAM_H */