demo of driving MAX2719 dot matrix displays with STM32F103 Bluepill
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f103-dotmatrix/project/com/iface_noop.c

91 lines
1.2 KiB

#include <stdlib.h>
#include "iface_noop.h"
#include "com_fileio.h"
#include "malloc_safe.h"
// ==== NOOP com driver ====
static bool if_rx_rdy(ComIface *iface)
{
(void)iface;
return false;
}
static bool if_tx_rdy(ComIface *iface)
{
(void)iface;
return true;
}
static bool if_tx_done(ComIface *iface)
{
(void)iface;
return true;
}
static bool if_rx(ComIface *iface, uint8_t *b)
{
(void)iface;
(void)b;
return false;
}
static bool if_unrx(ComIface *iface, uint8_t b)
{
(void)iface;
(void)b;
return false;
}
static bool if_tx(ComIface *iface, uint8_t b)
{
(void)iface;
(void)b;
return true;
}
static size_t if_rxb(ComIface *iface, void *buf, size_t buflen)
{
(void)iface;
(void)buf;
(void)buflen;
return 0;
}
static size_t if_txb(ComIface *iface, const void *blob, size_t size)
{
(void)iface;
(void)blob;
return size;
}
static void if_poll(ComIface *iface)
{
(void)iface;
}
ComIface *com_noop_init(void)
{
ComIface *iface = malloc_s(sizeof(ComIface));
iface->rx_rdy = if_rx_rdy;
iface->tx_rdy = if_tx_rdy;
iface->tx_done = if_tx_done;
iface->rx = if_rx;
iface->unrx = if_unrx;
iface->tx = if_tx;
iface->rxb = if_rxb;
iface->txb = if_txb;
iface->poll = if_poll;
iface->rx_callback = NULL;
return iface;
}