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// Copyright 2012 Ettus Research LLC
#include <wb_uart.h>
#include <wb_utils.h>
localparam SUART_CLKDIV = 0;
localparam SUART_TXLEVEL = 1;
localparam SUART_RXLEVEL = 2;
localparam SUART_TXCHAR = 3;
localparam SUART_RXCHAR = 4;
void wb_uart_init(const uint32_t base, const size_t div)
{
wb_poke32(base + SUART_CLKDIV*4, div);
}
void wb_uart_putc(const uint32_t base, const int ch)
{
while (wb_peek32(base + SUART_TXLEVEL*4) == 0);
wb_poke32(base + SUART_TXCHAR*4, ch);
}
bool wb_uart_try_putc(const uint32_t base, const int ch)
{
if (wb_peek32(base + SUART_TXLEVEL*4) == 0) return false;
wb_poke32(base + SUART_TXCHAR*4, ch);
return true;
}
int wb_uart_getc(const uint32_t base)
{
if (wb_peek32(base + SUART_RXLEVEL*4) == 0) return -1;
return wb_peek32(base + SUART_RXCHAR*4);
}
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