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SLIP netif: add support for multiple input strategies (threaded, polling, RX from ISR)

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goldsimon
2011-10-21 22:25:44 +02:00
parent 2750d61e92
commit 3d1a306518
2 changed files with 303 additions and 131 deletions
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30
src/include/netif/slipif.h
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@@ -34,14 +34,44 @@
#ifndef __NETIF_SLIPIF_H__
#define __NETIF_SLIPIF_H__
#include "lwip/opt.h"
#include "lwip/netif.h"
/** Set this to 1 to start a thread that blocks reading on the serial line
* (using sio_read()).
*/
#ifndef SLIP_USE_RX_THREAD
#define SLIP_USE_RX_THREAD !NO_SYS
#endif
/** Set this to 1 to enable functions to pass in RX bytes from ISR context.
* If enabled, slipif_received_byte[s]() process incoming bytes and put assembled
* packets on a queue, which is fed into lwIP from slipif_poll().
* If disabled, slipif_poll() polls the serila line (using sio_tryread()).
*/
#ifndef SLIP_RX_FROM_ISR
#define SLIP_RX_FROM_ISR 0
#endif
/** Set this to 1 (default for SLIP_RX_FROM_ISR) to queue incoming packets
* received by slipif_received_byte[s]() as long as PBUF_POOL pbufs are available.
* If disabled, packets will be dropped if more than one packet is received.
*/
#ifndef SLIP_RX_QUEUE
#define SLIP_RX_QUEUE SLIP_RX_FROM_ISR
#endif
#ifdef __cplusplus
extern "C" {
#endif
err_t slipif_init(struct netif * netif);
void slipif_poll(struct netif *netif);
#if SLIP_RX_FROM_ISR
void slipif_process_rxqueue(struct netif *netif);
void slipif_received_byte(struct netif *netif, u8_t data);
void slipif_received_bytes(struct netif *netif, u8_t *data, u8_t len);
#endif /* SLIP_RX_FROM_ISR */
#ifdef __cplusplus
}