ioforge_block.h

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#ifndef __IOFORGE__IOFORGE_BLOCK_H__
#define __IOFORGE__IOFORGE_BLOCK_H__
 
#include "string.h"
#include <type.h>
#include <ioforge/ioforge.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
enum ioforge_block_op_type : uint16_t {
    IOFORGE_BLOCK_OP_READ = 0,   // ATA: READ DMA EXT
    IOFORGE_BLOCK_OP_WRITE = 1,  // ATA: WRITE DMA EXT
    IOFORGE_BLOCK_OP_PACKET = 2, // ATAPI: PACKET command (0xA0)
    IOFORGE_BLOCK_OP_FLUSH = 3,  // ATA: FLUSH CACHE EXT
    IOFORGE_BLOCK_OP_IDENTIFY = 4,
};
 
// Flags untuk ATAPI
enum ioforge_block_flags : uint32_t {
    IOFORGE_FLAG_DMA = (1 << 0), // DMA mode (vs PIO)
    IOFORGE_FLAG_WRITE =
        (1 << 1), // Direction: device → host jika 0 (for DMA)
    IOFORGE_FLAG_NODATA = (1 << 2), // Packet cmd tanpa data transfer
};
 
struct ioforge_block_request {
    uint16_t op;
 
    uint64_t lba;
 
    void* buffer;
    size_t buffer_size;
 
    uint32_t block_count;
 
    uint32_t flags;
 
    void* packet_cmd;
    size_t packet_cmd_len;
 
    uint32_t timeout_ms;
};
 
struct ioforge_block_device;
 
struct ioforge_block_op {
    int (*submit)(struct ioforge_block_device* dev,
              struct ioforge_block_request* req);
};
 
enum {
    IOFORGE_BLOCK_TYPE_SATA = 0,
    IOFORGE_BLOCK_TYPE_SATAPI,
    IOFORGE_BLOCK_TYPE_SEMB,
    IOFORGE_BLOCK_TYPE_PM
};
 
struct ioforge_block_device {
    struct ioforge_device base;
    struct ioforge_block_op ops;
    uint8_t port;
    uint8_t type;
    size_t sector_size;
    kstring model_number;
};
 
typedef void (*ioforge_block_visitor_fn)(struct ioforge_block_device* dev,
                     void* ctx);
 
void foreach_block_device_by_type(struct ioforge_device* node,
                       uint8_t type,
                       ioforge_block_visitor_fn callback,
                       void* ctx);
 
#define EINVAL 22
#define EROFS 20
 
#ifdef __cplusplus
}
#endif
 
#endif // __IOFORGE__IOFORGE_BLOCK_H__