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Добавить переносимый драйвер parallel NAND

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Andrey
2026-09-04 12:22:21 +03:00
parent e163d9ba55
commit 20850b26df
22 changed files with 1430 additions and 0 deletions
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68
c/parallel-nand/include/parallel_nand.h Normal file
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#ifndef PARALLEL_NAND_H
#define PARALLEL_NAND_H
#include "parallel_nand_port.h"
#ifdef __cplusplus
extern "C" {
#endif
#define PNAND_MT29F1G08_PAGE_MAIN 2048UL
#define PNAND_MT29F1G08_PAGE_OOB 64UL
#define PNAND_MT29F1G08_PAGES_PER_BLOCK 64UL
#define PNAND_MT29F1G08_BLOCKS 1024UL
#define PNAND_MT29F1G08_COLUMN_CYCLES 2U
#define PNAND_MT29F1G08_ROW_CYCLES 2U
#define PNAND_MT29F1G08_PAGE_TOTAL \
(PNAND_MT29F1G08_PAGE_MAIN + PNAND_MT29F1G08_PAGE_OOB)
typedef enum {
PNAND_OK = 0,
PNAND_ERROR_ARGUMENT = -1,
PNAND_ERROR_PORT = -2,
PNAND_ERROR_TIMEOUT = -3,
PNAND_ERROR_RANGE = -4,
PNAND_ERROR_BUFFER = -5
} parallel_nand_result_t;
typedef struct {
unsigned long page_main_size;
unsigned long page_oob_size;
unsigned long pages_per_block;
unsigned long block_count;
unsigned int column_cycles;
unsigned int row_cycles;
unsigned long ready_timeout_us;
} parallel_nand_geometry_t;
typedef struct {
const parallel_nand_port_t *port;
parallel_nand_geometry_t geometry;
} parallel_nand_t;
extern const parallel_nand_geometry_t parallel_nand_mt29f1g08_geometry;
int parallel_nand_init(parallel_nand_t *nand,
const parallel_nand_port_t *port,
const parallel_nand_geometry_t *geometry);
int parallel_nand_reset(parallel_nand_t *nand);
int parallel_nand_read_status(parallel_nand_t *nand, pnand_octet_t *status);
int parallel_nand_read_id(parallel_nand_t *nand, pnand_octet_t address,
pnand_octet_t *id, unsigned int count);
int parallel_nand_read_page(parallel_nand_t *nand, unsigned long page,
pnand_octet_t *main_data,
unsigned long main_capacity,
pnand_octet_t *oob,
unsigned long oob_capacity);
int parallel_nand_read_page_slice(parallel_nand_t *nand, unsigned long page,
unsigned long column, pnand_octet_t *out,
unsigned long count);
int parallel_nand_is_bad_block(parallel_nand_t *nand, unsigned long block,
int *is_bad);
unsigned long parallel_nand_page_count(const parallel_nand_t *nand);
#ifdef __cplusplus
}
#endif
#endif

84
c/parallel-nand/include/parallel_nand_gas.h Normal file
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#ifndef PARALLEL_NAND_GAS_H
#define PARALLEL_NAND_GAS_H
#include "parallel_nand.h"
#ifdef __cplusplus
extern "C" {
#endif
#define PNAND_GAS_DEFAULT_BASE 0xE000U
#define PNAND_GAS_REGION_REGS 0x0520U
#define PNAND_GAS_DATA_OFFSET 0x0100U
#define PNAND_GAS_DATA_REGS 1024U
#define PNAND_GAS_OOB_OFFSET 0x0500U
#define PNAND_GAS_OOB_REGS 32U
enum {
PNAND_GAS_REG_SIGNATURE = 0x0000,
PNAND_GAS_REG_VERSION = 0x0001,
PNAND_GAS_REG_STATUS = 0x0002,
PNAND_GAS_REG_ERROR = 0x0003,
PNAND_GAS_REG_COMMAND = 0x0004,
PNAND_GAS_REG_PAGE_LO = 0x0005,
PNAND_GAS_REG_PAGE_HI = 0x0006,
PNAND_GAS_REG_PAGE_MAIN = 0x0007,
PNAND_GAS_REG_PAGE_OOB = 0x0008,
PNAND_GAS_REG_PAGES_PER_BLOCK = 0x0009,
PNAND_GAS_REG_BLOCKS = 0x000A,
PNAND_GAS_REG_MANUFACTURER_ID = 0x000B,
PNAND_GAS_REG_DEVICE_ID = 0x000C,
PNAND_GAS_REG_BAD_BLOCK = 0x000D,
PNAND_GAS_REG_GENERATION_LO = 0x000E,
PNAND_GAS_REG_GENERATION_HI = 0x000F
};
enum {
PNAND_GAS_CMD_NONE = 0,
PNAND_GAS_CMD_RESET = 1,
PNAND_GAS_CMD_READ_ID = 2,
PNAND_GAS_CMD_READ_PAGE = 3
};
#define PNAND_GAS_STATUS_READY 0x0001U
#define PNAND_GAS_STATUS_BUSY 0x0002U
#define PNAND_GAS_STATUS_PAGE_VALID 0x0004U
#define PNAND_GAS_STATUS_BAD_BLOCK 0x0008U
#define PNAND_GAS_STATUS_ERROR 0x8000U
typedef struct {
parallel_nand_t *nand;
unsigned int base;
unsigned int status;
int error;
unsigned long selected_page;
unsigned long generation;
unsigned long cached_block;
int cached_bad_block;
int block_cache_valid;
pnand_octet_t id[8];
pnand_octet_t main_data[PNAND_MT29F1G08_PAGE_MAIN];
pnand_octet_t oob[PNAND_MT29F1G08_PAGE_OOB];
} parallel_nand_gas_t;
void parallel_nand_gas_init(parallel_nand_gas_t *gas,
parallel_nand_t *nand, unsigned int base);
/* Portable GAS callbacks. Values and addresses are exactly 16 bits on wire. */
typedef enum {
PNAND_GAS_OK = 0,
PNAND_GAS_NO_REG,
PNAND_GAS_READ_ONLY,
PNAND_GAS_REJECTED
} parallel_nand_gas_result_t;
parallel_nand_gas_result_t parallel_nand_gas_read(
parallel_nand_gas_t *gas, unsigned int address, unsigned int *value);
parallel_nand_gas_result_t parallel_nand_gas_write(
parallel_nand_gas_t *gas, unsigned int address, unsigned int value);
#ifdef __cplusplus
}
#endif
#endif

11
c/parallel-nand/include/parallel_nand_pcan_gas.h Normal file
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#ifndef PARALLEL_NAND_PCAN_GAS_H
#define PARALLEL_NAND_PCAN_GAS_H
#include "parallel_nand_gas.h"
#include "pcan_gas.h"
/* Adapter for targets where c/set-protocol pcan_gas is available. */
void parallel_nand_pcan_gas_region_init(pcan_gas_region_t *region,
parallel_nand_gas_t *gas);
#endif

28
c/parallel-nand/include/parallel_nand_port.h Normal file
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#ifndef PARALLEL_NAND_PORT_H
#define PARALLEL_NAND_PORT_H
#ifdef __cplusplus
extern "C" {
#endif
/* Один octet хранится в целом типе: это важно для C28x с 16-битным char. */
typedef unsigned short pnand_octet_t;
typedef struct {
int (*init)(void);
void (*select)(void);
void (*deselect)(void);
void (*write_command)(pnand_octet_t value);
void (*write_address)(pnand_octet_t value);
void (*write_data)(pnand_octet_t value);
pnand_octet_t (*read_data)(void);
int (*is_ready)(void);
void (*set_write_protect)(int enabled);
void (*delay_us)(unsigned long us);
} parallel_nand_port_t;
#ifdef __cplusplus
}
#endif
#endif