48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
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#ifndef _XMODEM_H_
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#define _XMODEM_H_
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#include <stdio.h>
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#include "serial.h"
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#define XMODEM_SOH (0x01)
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#define XMODEM_STX (0x02)
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#define XMODEM_EOT (0x04)
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#define XMODEM_ACK (0x06)
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#define XMODEM_NAK (0x15)
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#define XMODEM_ETB (0x17)
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#define XMODEM_CAN (0x18)
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#define XMODEM_CRC (0x43) /* 'C' */
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#define XMODEM_PAD (0x1A)
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#define XMODEM_TIMEOUT (10000) /* in ms */
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#define XMODEM_ERR_TIMEOUT (1) /* ACK timeout */
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#define XMODEM_ERR_WRITE (2) /* Failed to write to file descriptor */
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#define XMODEM_ERR_FILEIO (3) /* Error on reading from file descriptor */
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#define XMODEM_ERR_READ (4) /* Failed to read from the serial connection */
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#define XMODEM_ERR_CANCEL (5) /* Sender cancelled the transmission */
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#define XMODEM_ERR_DONE (6) /* Sender finished the transmission */
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/*
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* Following this setup: https://pythonhosted.org/xmodem/xmodem.html
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* Choose to send `sz` bytes from `in_fd` to `dest_fd` via XModem with a payload
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* length of `block_sz`.
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*/
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int xmodem_send(
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int dest_fd,
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int in_fd,
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size_t sz,
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int block_sz,
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void (*status_cb)(size_t sent, size_t total)
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);
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#if 0
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/* Receive an xmodem message
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*
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* If sz is non-negative, then only that many bytes will actually be written
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* to fd. But the entire xmodem transfer will be completed */
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int xmodem_recv(int in_fd, int dest_fd, ssize_t sz);
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#endif
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#endif /* _XMODEM_H_ */
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