114 lines
2.5 KiB
C
114 lines
2.5 KiB
C
|
#include <rtthread.h>
|
||
|
|
#include <ymodem.h>
|
||
|
|
#include <dfs_posix.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
|
||
|
|
#include <board.h>
|
||
|
|
|
||
|
|
struct custom_ctx
|
||
|
|
{
|
||
|
|
struct rym_ctx parent;
|
||
|
|
int fd;
|
||
|
|
int flen;
|
||
|
|
char fpath[256];
|
||
|
|
};
|
||
|
|
|
||
|
|
static enum rym_code _rym_bg(
|
||
|
|
struct rym_ctx *ctx,
|
||
|
|
rt_uint8_t *buf,
|
||
|
|
rt_size_t len)
|
||
|
|
{
|
||
|
|
struct custom_ctx *cctx = (struct custom_ctx*)ctx;
|
||
|
|
cctx->fpath[0] = '/';
|
||
|
|
/* the buf should be the file name */
|
||
|
|
strcpy(&(cctx->fpath[1]), (const char*)buf);
|
||
|
|
cctx->fd = open(cctx->fpath, O_CREAT | O_WRONLY | O_TRUNC, 0);
|
||
|
|
if (cctx->fd < 0)
|
||
|
|
{
|
||
|
|
rt_err_t err = rt_get_errno();
|
||
|
|
rt_kprintf("error creating file: %d\n", err);
|
||
|
|
rt_kprintf("abort transmission\n");
|
||
|
|
return RYM_CODE_CAN;
|
||
|
|
}
|
||
|
|
|
||
|
|
cctx->flen = atoi((const char*)buf+strlen((const char*)buf)+1);
|
||
|
|
if (cctx->flen == 0)
|
||
|
|
cctx->flen = -1;
|
||
|
|
return RYM_CODE_ACK;
|
||
|
|
}
|
||
|
|
|
||
|
|
static enum rym_code _rym_tof(
|
||
|
|
struct rym_ctx *ctx,
|
||
|
|
rt_uint8_t *buf,
|
||
|
|
rt_size_t len)
|
||
|
|
{
|
||
|
|
struct custom_ctx *cctx = (struct custom_ctx*)ctx;
|
||
|
|
RT_ASSERT(cctx->fd >= 0);
|
||
|
|
if (cctx->flen == -1)
|
||
|
|
{
|
||
|
|
write(cctx->fd, buf, len);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
int wlen = len > cctx->flen ? cctx->flen : len;
|
||
|
|
write(cctx->fd, buf, wlen);
|
||
|
|
cctx->flen -= wlen;
|
||
|
|
}
|
||
|
|
return RYM_CODE_ACK;
|
||
|
|
}
|
||
|
|
|
||
|
|
static enum rym_code _rym_end(
|
||
|
|
struct rym_ctx *ctx,
|
||
|
|
rt_uint8_t *buf,
|
||
|
|
rt_size_t len)
|
||
|
|
{
|
||
|
|
struct custom_ctx *cctx = (struct custom_ctx*)ctx;
|
||
|
|
|
||
|
|
RT_ASSERT(cctx->fd >= 0);
|
||
|
|
close(cctx->fd);
|
||
|
|
cctx->fd = -1;
|
||
|
|
|
||
|
|
return RYM_CODE_ACK;
|
||
|
|
}
|
||
|
|
|
||
|
|
rt_err_t rym_write_to_file(rt_device_t idev)
|
||
|
|
{
|
||
|
|
rt_err_t res;
|
||
|
|
struct custom_ctx *ctx = rt_malloc(sizeof(*ctx));
|
||
|
|
|
||
|
|
RT_ASSERT(idev);
|
||
|
|
|
||
|
|
rt_kprintf("entering RYM mode\n");
|
||
|
|
|
||
|
|
res = rym_recv_on_device(&ctx->parent, idev, RT_DEVICE_OFLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
|
||
|
|
_rym_bg, _rym_tof, _rym_end, 1000);
|
||
|
|
|
||
|
|
/* there is no Ymodem traffic on the line so print out info. */
|
||
|
|
rt_kprintf("leaving RYM mode with code %d\n", res);
|
||
|
|
rt_kprintf("file %s has been created.\n", ctx->fpath);
|
||
|
|
|
||
|
|
rt_free(ctx);
|
||
|
|
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef RT_USING_FINSH
|
||
|
|
#include <finsh.h>
|
||
|
|
rt_err_t ry(char *dname)
|
||
|
|
{
|
||
|
|
rt_err_t res;
|
||
|
|
|
||
|
|
rt_device_t dev = rt_device_find(dname);
|
||
|
|
if (!dev)
|
||
|
|
{
|
||
|
|
rt_kprintf("could not find device:%s\n", dname);
|
||
|
|
return -RT_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
res = rym_write_to_file(dev);
|
||
|
|
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
FINSH_FUNCTION_EXPORT(ry, receive files by ymodem protocol);
|
||
|
|
#endif
|