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ymodem support multiple files transmission

This commit is contained in:
Lyn 2019-01-22 13:58:59 +08:00 committed by GitHub
parent bef1d55736
commit 626d0e9e06
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 30 additions and 8 deletions
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38
components/utilities/ymodem/ymodem.c
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@ -266,6 +266,7 @@ static rt_err_t _rym_do_fin(struct rym_ctx *ctx)
enum rym_code code;
rt_uint16_t recv_crc;
rt_size_t i;
rt_size_t data_sz;
ctx->stage = RYM_STAGE_FINISHING;
/* we already got one EOT in the caller. invoke the callback if there is
@ -282,7 +283,15 @@ static rt_err_t _rym_do_fin(struct rym_ctx *ctx)
_rym_putchar(ctx, RYM_CODE_C);
code = _rym_read_code(ctx, RYM_WAIT_PKG_TICK);
if (code != RYM_CODE_SOH)
if (code == RYM_CODE_SOH)
{
data_sz = _RYM_SOH_PKG_SZ;
}
else if(code == RYM_CODE_STX)
{
data_sz = _RYM_STX_PKG_SZ;
}
else
return -RYM_ERR_CODE;
i = _rym_read_data(ctx, _RYM_SOH_PKG_SZ-1);
@ -290,8 +299,6 @@ static rt_err_t _rym_do_fin(struct rym_ctx *ctx)
return -RYM_ERR_DSZ;
/* sanity check
*
* TODO: multiple files transmission
*/
if (ctx->buf[1] != 0 || ctx->buf[2] != 0xFF)
return -RYM_ERR_SEQ;
@ -300,6 +307,14 @@ static rt_err_t _rym_do_fin(struct rym_ctx *ctx)
if (recv_crc != CRC16(ctx->buf+3, _RYM_SOH_PKG_SZ-5))
return -RYM_ERR_CRC;
/*next file transmission*/
if (ctx->buf[3] != 0)
{
if (ctx->on_begin && ctx->on_begin(ctx, ctx->buf+3, data_sz-5) != RYM_CODE_ACK)
return -RYM_ERR_CAN;
return RT_EOK;
}
/* congratulations, check passed. */
ctx->stage = RYM_STAGE_FINISHED;
@ -324,12 +339,19 @@ static rt_err_t _rym_do_recv(
err = _rym_do_handshake(ctx, handshake_timeout);
if (err != RT_EOK)
return err;
while (1)
{
err = _rym_do_trans(ctx);
if (err != RT_EOK)
return err;
err = _rym_do_trans(ctx);
if (err != RT_EOK)
return err;
return _rym_do_fin(ctx);
err = _rym_do_fin(ctx);
if (err != RT_EOK)
return err;
if (ctx->stage == RYM_STAGE_FINISHED)
break;
}
return err;
}
rt_err_t rym_recv_on_device(