DeetCode.

Memory-Mapped Driver Abstraction

Hard C Memory
Solve this problem

Implement a memory-mapped I/O driver abstraction in C for an embedded peripheral. The driver must allow safe register read/write using volatile pointers, support bitfield operations, and expose initialization and reset routines.

Constraints

  • Base address provided in init().
  • read32(offset), write32(offset,val).
  • set_bit(offset,bit), clear_bit(offset,bit).
  • Must use volatile uint32_t*.
  • No dynamic allocation.
Starter codeC
1#include <stdint.h>2void mmio_init(uint32_t base);3uint32_t mmio_read32(uint32_t off);4void mmio_write32(uint32_t off, uint32_t v);5void mmio_setbit(uint32_t off, int b);6void mmio_clearbit(uint32_t off, int b);