diff options
| author | Min Xu <min.xu@min-info.net> | 2014-10-25 20:55:01 +0200 |
|---|---|---|
| committer | Harald Welte <laforge@gnumonks.org> | 2014-11-11 22:30:54 +0100 |
| commit | ab325fc295a23d04f27cc7300b12d2564e4d83e6 (patch) | |
| tree | 7ded03272565766e166b04c20fa18ff94ef3ac9c /firmware/src/simtrace/sim_switch.c | |
| parent | 9bd1b003a63d61e91db3827c2b66290abc1adf13 (diff) | |
Ensure to transmit current req_ctx on RESET/VCC events
When any of the following events occur:
* VCC_PHONE off
* nRST
* RST
we tranmsit the current req_ctx, if there is data pending.
This ensures that for any successive data, the ATR flag in the next
req_ctx containing the data, not in the previous req_ctx. It also
ensures that the ATR is aligned at 0 offset in the new req_ctx, which is
an assumption the host software makes but the previous code didn't
ensure.
Furthermore, we introduce a periodic flushing of any pending but
incomplete req_ctx.
Diffstat (limited to 'firmware/src/simtrace/sim_switch.c')
| -rw-r--r-- | firmware/src/simtrace/sim_switch.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/firmware/src/simtrace/sim_switch.c b/firmware/src/simtrace/sim_switch.c index faf48f0..90067ac 100644 --- a/firmware/src/simtrace/sim_switch.c +++ b/firmware/src/simtrace/sim_switch.c @@ -59,9 +59,12 @@ static void sw_sim_irq(u_int32_t pio) static void vcc_phone_irq(u_int32_t pio) { - if (!AT91F_PIO_IsInputSet(AT91C_BASE_PIOA, SIMTRACE_PIO_VCC_PHONE)) + if (!AT91F_PIO_IsInputSet(AT91C_BASE_PIOA, SIMTRACE_PIO_VCC_PHONE)) { DEBUGPCR("VCC_PHONE off"); - else + /* flush any pending req_ctx to make sure the next ATR + * will be aligned to position 0 */ + iso_uart_flush(); + } else DEBUGPCR("VCC_PHONE on"); } |