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switch EM04, add container management for SCSI support

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Laurent Vivier 2004-12-03 00:20:08 +00:00
parent 1abf16c567
commit 3cb1bd230b
1 changed files with 18 additions and 0 deletions
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18
second/head.h
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@ -19,6 +19,9 @@ struct emile_l2_header {
u_int32_t entry;
u_int32_t signature;
/* EMO4 addendum: if kernel_image_size == 0,
* kernel_image_offset is a pointer to a container
*/
u_int32_t kernel_image_offset;
u_int32_t kernel_image_size;
u_int32_t kernel_size;
@ -45,6 +48,20 @@ struct emile_l2_header {
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
@ -54,6 +71,7 @@ struct emile_l2_header {
#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_COMPAT(a,b) ( ( EMILE_ID(a) == EMILE_ID(b) ) && \
( EMILE_VERSION(a) <= EMILE_VERSION(b) ) )