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command ids updated to include header size

This commit is contained in:
Nicolas 2026-03-19 14:01:32 +01:00
parent 8f9cd96973
commit 33b833c41a
2 changed files with 51 additions and 33 deletions
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27
src/copapy/_binwrite.py
View File

@ -4,19 +4,20 @@ import struct
ByteOrder = Literal['little', 'big']
Command = Enum('Command', [('ALLOCATE_DATA', 1), ('COPY_DATA', 2),
('ALLOCATE_CODE', 3), ('COPY_CODE', 4),
('PATCH_FUNC', 0x1000),
('PATCH_FUNC_ARM32_THM', 0x1005),
('PATCH_OBJECT', 0x2000),
('PATCH_OBJECT_HI21', 0x2001),
('PATCH_OBJECT_ABS', 0x2002),
('PATCH_OBJECT_REL', 0x2003),
('PATCH_OBJECT_ARM32_ABS', 0x2004),
('PATCH_OBJECT_ARM32_ABS_THM', 0x2006),
('ENTRY_POINT', 7),
('RUN_PROG', 64), ('READ_DATA', 65),
('END_COM', 256), ('FREE_MEMORY', 257), ('DUMP_CODE', 258)])
# header lengths in bytes, command id
Command = Enum('Command', [('ALLOCATE_DATA', 0x04_0001), ('COPY_DATA', 0x08_0002),
('ALLOCATE_CODE', 0x04_0003), ('COPY_CODE', 0x08_0004),
('PATCH_FUNC', 0x10_1000),
('PATCH_FUNC_ARM32_THM', 0x10_1005),
('PATCH_OBJECT', 0x10_2000),
('PATCH_OBJECT_HI21', 0x10_2001),
('PATCH_OBJECT_ABS', 0x10_2002),
('PATCH_OBJECT_REL', 0x10_2003),
('PATCH_OBJECT_ARM32_ABS', 0x10_2004),
('PATCH_OBJECT_ARM32_ABS_THM', 0x10_2006),
('ENTRY_POINT', 0x04_0007),
('RUN_PROG', 0x00_0040), ('READ_DATA', 0x08_0041),
('END_COM', 0x00_0100), ('FREE_MEMORY', 0x00_0101), ('DUMP_CODE', 0x00_0102)])
COMMAND_SIZE = 4

57
src/coparun/runmem.h
View File

@ -22,28 +22,40 @@
#endif
/* Command opcodes used by the parser */
#define ALLOCATE_DATA 1
#define COPY_DATA 2
#define ALLOCATE_CODE 3
#define COPY_CODE 4
#define PATCH_FUNC 0x1000
#define PATCH_FUNC_ARM32_THM 0x1005
#define PATCH_OBJECT 0x2000
#define PATCH_OBJECT_HI21 0x2001
#define PATCH_OBJECT_ABS 0x2002
#define PATCH_OBJECT_REL 0x2003
#define PATCH_OBJECT_ARM32_ABS 0x2004
#define PATCH_OBJECT_ARM32_ABS_THM 0x2006
#define ENTRY_POINT 7
#define RUN_PROG 64
#define READ_DATA 65
#define END_COM 256
#define FREE_MEMORY 257
#define DUMP_CODE 258
#define ALLOCATE_DATA 0x040001
#define COPY_DATA 0x080002
#define ALLOCATE_CODE 0x040003
#define COPY_CODE 0x080004
#define PATCH_FUNC 0x101000
#define PATCH_FUNC_ARM32_THM 0x101005
#define PATCH_OBJECT 0x102000
#define PATCH_OBJECT_HI21 0x102001
#define PATCH_OBJECT_ABS 0x102002
#define PATCH_OBJECT_REL 0x102003
#define PATCH_OBJECT_ARM32_ABS 0x102004
#define PATCH_OBJECT_ARM32_ABS_THM 0x102006
#define ENTRY_POINT 0x040007
#define RUN_PROG 0x000040
#define READ_DATA 0x080041
#define END_COM 0x000100
#define FREE_MEMORY 0x000101
#define DUMP_CODE 0x000102
/* Entry point type */
typedef int (*entry_point_t)(void);
/* rx_state */
#define RX_STATE_IDLE 0
#define RX_STATE_HEADER 1
#define RX_STATE_DATA 2
/* state_flag */
#define STATE_FLAG_NONE 0
#define STATE_FLAG_END_COM 1
#define STATE_FLAG_DUMP_CODE 2
#define STATE_FLAG_UNKNOWN_COMMAND -1
#define STATE_FLAG_MEM_DIST -4 //code and data memory to far apart
/* Struct for run-time memory state */
typedef struct runmem_s {
uint8_t *data_memory; // Pointer to data memory
@ -52,13 +64,18 @@ typedef struct runmem_s {
uint32_t executable_memory_len; // Length of executable memory
int data_offs; // Offset of data memory relative to executable memory
entry_point_t entr_point; // Entry point function pointer
int32_t rx_state; // State for receiving commands (idle, header, data)
int32_t state_flag; // Flag for result/error state
uint8_t *data_src;
uint8_t *data_dest;
uint32_t data_size;
} runmem_t;
/* Command parser: takes a pointer to the command stream and returns
an error flag (0 on success according to current code) */
int parse_commands(runmem_t *context, uint8_t *bytes);
int parse_commands(runmem_t *context, uint8_t *bytes, uint32_t lengths);
/* Free program and data memory */
void free_memory(runmem_t *context);
#endif /* RUNMEM_H */
#endif /* RUNMEM_H */