From 6bafd0cfb40c2d201f8723a3678dd4f04b380842 Mon Sep 17 00:00:00 2001 From: Min Xu Date: Sat, 25 Oct 2014 21:25:54 +0200 Subject: Don't split req_ctx with ATR payload The codnition for flushing a req_ctx on UART idle is fixed to flush only if 1) There has been no new data since last check, and 2) There are no req_ctx currently pending to be transmitted to USB, and 3) We did NOT just got a reset and waiting for ATR I saw an ATR split in two different req_ctx prior, presumably flush decided to send req_ctx after ATR but got a new character just before sent). If we did get a RESET, let original logic decide to send the req_ctx -- presumably when ATR data is fully received. --- firmware/src/simtrace/iso7816_uart.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'firmware') diff --git a/firmware/src/simtrace/iso7816_uart.c b/firmware/src/simtrace/iso7816_uart.c index e37deba..9e8ace9 100644 --- a/firmware/src/simtrace/iso7816_uart.c +++ b/firmware/src/simtrace/iso7816_uart.c @@ -591,7 +591,10 @@ void iso_uart_idleflush(void) static struct req_ctx *last_req = NULL; static u_int16_t last_len = 0; - if (last_req == isoh.rctx || last_len == isoh.rctx->tot_len) { + if (last_req == isoh.rctx && + last_len == isoh.rctx->tot_len && + req_ctx_count(RCTX_STATE_UDP_EP2_PENDING) == 0 && + (isoh.sh.flags & SIMTRACE_FLAG_ATR) == 0) { send_rctx(&isoh); } last_req = isoh.rctx; -- cgit v1.2.3