diff options
Diffstat (limited to 'code/fe310/eos/net.c')
| -rw-r--r-- | code/fe310/eos/net.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/code/fe310/eos/net.c b/code/fe310/eos/net.c index b6f5722..1b9e34a 100644 --- a/code/fe310/eos/net.c +++ b/code/fe310/eos/net.c @@ -72,7 +72,7 @@ static unsigned char *net_bufq_pop(void) { static void net_xchg_reset(void) { net_state_flags &= ~NET_STATE_FLAG_CTS; - net_state_flags |= NET_STATE_FLAG_RST; + net_state_flags |= (NET_STATE_FLAG_RST | NET_STATE_FLAG_XCHG); // before starting a transaction, set SPI peripheral to desired mode SPI1_REG(SPI_REG_CSMODE) = SPI_CSMODE_HOLD; @@ -85,7 +85,7 @@ static void net_xchg_reset(void) { static void net_xchg_start(unsigned char type, unsigned char *buffer, uint16_t len) { net_state_flags &= ~NET_STATE_FLAG_CTS; - net_state_flags |= NET_STATE_FLAG_INIT; + net_state_flags |= (NET_STATE_FLAG_INIT | NET_STATE_FLAG_XCHG); if (net_state_next_cnt && (net_state_next_buf == NULL)) type |= NET_MTYPE_FLAG_ONEW; if (type & NET_MTYPE_FLAG_ONEW) net_state_flags |= NET_STATE_FLAG_ONEW; @@ -183,6 +183,7 @@ void eos_net_xchg_done(void) { } else { net_bufq_push(_eos_spi_state_buf); } + net_state_flags &= ~NET_STATE_FLAG_XCHG; } static void net_handler_cts(void) { @@ -244,6 +245,13 @@ void eos_net_set_handler(unsigned char mtype, eos_evt_fptr_t handler, uint8_t fl void eos_net_init(void) { int i; + net_bufq_init(); + eos_msgq_init(&net_send_q, net_sndq_array, NET_SIZE_BUFQ); + for (i=0; i<EOS_NET_MAX_MTYPE; i++) { + evt_handler[i] = eos_evtq_bad_handler; + } + eos_evtq_set_handler(EOS_EVT_NET, net_handler_evt); + GPIO_REG(GPIO_OUTPUT_EN) &= ~(1 << NET_PIN_CTS); GPIO_REG(GPIO_PULLUP_EN) |= (1 << NET_PIN_CTS); GPIO_REG(GPIO_INPUT_EN) |= (1 << NET_PIN_CTS); @@ -256,13 +264,6 @@ void eos_net_init(void) { GPIO_REG(GPIO_RISE_IE) |= (1 << NET_PIN_RTS); GPIO_REG(GPIO_FALL_IE) |= (1 << NET_PIN_RTS); eos_intr_set(INT_GPIO_BASE + NET_PIN_RTS, IRQ_PRIORITY_NET_RTS, net_handler_rts); - - net_bufq_init(); - eos_msgq_init(&net_send_q, net_sndq_array, NET_SIZE_BUFQ); - for (i=0; i<EOS_NET_MAX_MTYPE; i++) { - evt_handler[i] = eos_evtq_bad_handler; - } - eos_evtq_set_handler(EOS_EVT_NET, net_handler_evt); } void eos_net_start(void) { @@ -271,16 +272,20 @@ void eos_net_start(void) { SPI1_REG(SPI_REG_CSID) = SPI_CS_IDX_NET; net_state_flags |= NET_STATE_FLAG_RUN; - if (net_state_flags & NET_STATE_FLAG_CTS) net_xchg_next(NULL); + if (net_state_flags & NET_STATE_FLAG_CTS) { + clear_csr(mstatus, MSTATUS_MIE); + net_xchg_next(NULL); + set_csr(mstatus, MSTATUS_MIE); + } } void eos_net_stop(void) { - volatile uint8_t done = 0; + uint8_t done = 0; while (!done) { clear_csr(mstatus, MSTATUS_MIE); net_state_flags &= ~NET_STATE_FLAG_RUN; - done = net_state_flags & NET_STATE_FLAG_CTS; + done = !(net_state_flags & NET_STATE_FLAG_XCHG); if (!done) asm volatile ("wfi"); set_csr(mstatus, MSTATUS_MIE); } |