EMILE/second/head.h
2005-09-19 22:08:08 +00:00

90 lines
2.1 KiB
C

/*
*
* (c) 2004 Laurent Vivier <LaurentVivier@wanadoo.fr>
*
*/
#ifndef __HEAD_H__
#define __HEAD_H__
#define COMMAND_LINE_LENGTH 256
/*
* WARNING: remember that m68k is big endian, like powerPC.
* i386 is little-endian
*/
typedef struct emile_l2_header emile_l2_header_t;
struct emile_l2_header {
/* EM01 */
u_int32_t entry;
u_int32_t signature;
/* EMO4 addendum: if kernel_image_size == 0,
* kernel_image_offset is a pointer to a container
* EM05 addendum: if kernel_image_size == kernel_size
* kernel is not compressed
*/
u_int32_t kernel_image_offset;
u_int32_t kernel_image_size;
u_int32_t kernel_size;
u_int32_t ramdisk_offset;
u_int32_t ramdisk_size;
int8_t command_line[COMMAND_LINE_LENGTH];
/* EM02 */
u_int32_t console_mask;
u_int32_t serial0_bitrate;
int8_t serial0_datasize;
int8_t serial0_parity;
int8_t serial0_stopbits;
int8_t pad0;
u_int32_t serial1_bitrate;
int8_t serial1_datasize;
int8_t serial1_parity;
int8_t serial1_stopbits;
int8_t pad1;
/* EM03 */
u_int32_t gestaltID;
} __attribute__((packed));
#ifdef SCSI_SUPPORT
struct emile_block {
u_int32_t offset; /* offset of first block */
u_int16_t count; /* number of blocks */
} __attribute__((packed));
struct emile_container {
u_int16_t unit_id;
u_int16_t block_size;
u_int32_t max_blocks;
struct emile_block blocks[0];
} __attribute__((packed));
#endif /* SCSI_SUPPORT */
#define EMILE_ID_MASK 0xFFF0
#define EMILE_VERSION_MASK 0x000F
#define EMILE_ID(a) ((a) & EMILE_ID_MASK)
#define EMILE_VERSION(a) ((a) & EMILE_VERSION_MASK)
#define EMILE_01_SIGNATURE (('E'<<24)|('M'<<16)|('0'<<8)|'1')
#define EMILE_02_SIGNATURE (('E'<<24)|('M'<<16)|('0'<<8)|'2')
#define EMILE_03_SIGNATURE (('E'<<24)|('M'<<16)|('0'<<8)|'3')
#define EMILE_04_SIGNATURE (('E'<<24)|('M'<<16)|('0'<<8)|'4')
#define EMILE_05_SIGNATURE (('E'<<24)|('M'<<16)|('0'<<8)|'5')
#define EMILE_COMPAT(a,b) ( ( EMILE_ID(a) == EMILE_ID(b) ) && \
( EMILE_VERSION(a) <= EMILE_VERSION(b) ) )
enum {
STDOUT_VGA = 0x00000001,
STDOUT_SERIAL0 = 0x00000002,
STDOUT_SERIAL1 = 0x00000004,
ENABLE_DEBUG = 0x80000000,
};
#endif /* __HEAD_H__ */