ra8_io_spi_bus_spi_b.c

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#include "ra8_io_spi_bus_spi_b.h"
 
#include <stdint.h>
 
#include "ra8_attributes.h"
#include "ra8_check.h"
#include "ra8_err.h"
#include "ra8_io_spi_bus.h"
#include "ra8_io_spi_bus_internal.h"
#include "ra8_spi.h"
#include "ra8_spi_regs.h"

static const char* const s_tag = "ra8_io_spi_bus_spi_b";

RA8_INTERNAL
RA8_INTERNAL static ra8_err_t internal_spi_b_xfer8(void* ctx, uint8_t tx, uint8_t* rx)
{
  return ra8_spi_xfer8((uint8_t)(uintptr_t)ctx, tx, rx);
}

RA8_INTERNAL
RA8_INTERNAL static ra8_err_t internal_spi_b_write_read(void*               ctx,
                                                        const void*         tx,
                                                        void*               rx,
                                                        uint32_t            len,
                                                        ra8_spi_bit_width_t width)
{
  return ra8_spi_write_read((uint8_t)(uintptr_t)ctx, tx, rx, len, width);
}

RA8_INTERNAL
RA8_INTERNAL static ra8_err_t
internal_spi_b_set_clock(void* ctx, uint32_t baud_hz, uint32_t pclk_hz)
{
  return ra8_spi_set_clock((uint8_t)(uintptr_t)ctx, baud_hz, pclk_hz);
}

static const ra8_io_spi_bus_iface_t s_spi_b_iface = {
  .xfer8      = internal_spi_b_xfer8,
  .write_read = internal_spi_b_write_read,
  .set_clock  = internal_spi_b_set_clock,
};
 
ra8_err_t ra8_io_spi_bus_bind_spi_b(ra8_io_spi_bus_t* bus, uint8_t channel)
{
  RA8_CHECK_NULL_PTR(bus, s_tag, "bus must not be nullptr");
  if (channel >= (uint8_t)k_ra8_spi_b_channel_count) {
    return k_ra8_err_invalid_arg;
  }
  bus->iface = &s_spi_b_iface;
  bus->ctx   = (void*)(uintptr_t)channel;
  return k_ra8_ok;
}