diff options
Diffstat (limited to 'firmware/usrp3/n230/n230_eth_handlers.c')
| -rw-r--r-- | firmware/usrp3/n230/n230_eth_handlers.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/firmware/usrp3/n230/n230_eth_handlers.c b/firmware/usrp3/n230/n230_eth_handlers.c index b69c35eb0..30b803489 100644 --- a/firmware/usrp3/n230/n230_eth_handlers.c +++ b/firmware/usrp3/n230/n230_eth_handlers.c @@ -29,6 +29,11 @@ static n230_host_shared_mem_t* host_shared_mem_ptr; +static const soft_reg_field_t LED_REG_FIELD_ETH_LINK2 = {.num_bits=1, .shift=0}; +static const soft_reg_field_t LED_REG_FIELD_ETH_LINK1 = {.num_bits=1, .shift=1}; +static const soft_reg_field_t LED_REG_FIELD_ETH_ACT2 = {.num_bits=1, .shift=2}; +static const soft_reg_field_t LED_REG_FIELD_ETH_ACT1 = {.num_bits=1, .shift=3}; + /*********************************************************************** * Handler for host <-> firmware communication **********************************************************************/ @@ -233,3 +238,77 @@ void n230_register_flash_comms_handler() u3_net_stack_register_udp_handler(N230_FW_COMMS_FLASH_PROG_PORT, &n230_handle_flash_prog_comms); } +/*********************************************************************** + * Handler for SFP state changes + **********************************************************************/ +#define SFPP_STATUS_MODABS_CHG (1 << 5) // Has MODABS changed since last read? +#define SFPP_STATUS_TXFAULT_CHG (1 << 4) // Has TXFAULT changed since last read? +#define SFPP_STATUS_RXLOS_CHG (1 << 3) // Has RXLOS changed since last read? +#define SFPP_STATUS_MODABS (1 << 2) // MODABS state +#define SFPP_STATUS_TXFAULT (1 << 1) // TXFAULT state +#define SFPP_STATUS_RXLOS (1 << 0) // RXLOS state + +static bool links_up[N230_MAX_NUM_ETH_PORTS] = {}; + +void n230_poll_sfp_status(const uint32_t eth) +{ + static bool first_poll = 1; + + // Has MODDET/MODAbS changed since we last looked? + uint32_t rb = wb_peek32(SR_ADDR(WB_SBRB_BASE, (eth==0) ? RB_ZPU_SFP_STATUS0 : RB_ZPU_SFP_STATUS1)); + + if (rb & SFPP_STATUS_RXLOS_CHG) + UHD_FW_TRACE_FSTR(DEBUG, "eth%1d RXLOS changed state: %d", eth, (rb & SFPP_STATUS_RXLOS)); + if (rb & SFPP_STATUS_TXFAULT_CHG) + UHD_FW_TRACE_FSTR(DEBUG, "eth%1d TXFAULT changed state: %d", eth, ((rb & SFPP_STATUS_TXFAULT) >> 1)); + if (rb & SFPP_STATUS_MODABS_CHG) + UHD_FW_TRACE_FSTR(DEBUG, "eth%1d MODABS changed state: %d", eth, ((rb & SFPP_STATUS_MODABS) >> 2)); + + //update the link up status + if ((rb & SFPP_STATUS_RXLOS_CHG) || (rb & SFPP_STATUS_TXFAULT_CHG) || (rb & SFPP_STATUS_MODABS_CHG) || first_poll) + { + const bool old_link_up = links_up[eth]; + const uint32_t status_reg_addr = (eth==0) ? RB_ZPU_SFP_STATUS0 : RB_ZPU_SFP_STATUS1; + + uint32_t sfpp_status = wb_peek32(SR_ADDR(WB_SBRB_BASE, status_reg_addr)) & 0xFFFF; + if ((sfpp_status & (SFPP_STATUS_RXLOS|SFPP_STATUS_TXFAULT|SFPP_STATUS_MODABS)) == 0) { + int8_t timeout = 100; + bool link_up = false; + do { + link_up = ((wb_peek32(SR_ADDR(WB_SBRB_BASE, status_reg_addr)) >> 16) & 0x1) != 0; + } while (!link_up && timeout-- > 0); + + links_up[eth] = link_up; + } else { + links_up[eth] = false; + } + + if (!old_link_up && links_up[eth]) u3_net_stack_send_arp_request(eth, u3_net_stack_get_ip_addr(eth)); + UHD_FW_TRACE_FSTR(INFO, "The link on eth port %u is %s", eth, links_up[eth]?"up":"down"); + if (rb & SFPP_STATUS_MODABS_CHG) { + // MODDET has changed state since last checked + if (rb & SFPP_STATUS_MODABS) { + // MODDET is high, module currently removed. + UHD_FW_TRACE_FSTR(INFO, "An SFP+ module has been removed from eth port %d.", eth); + } else { + // MODDET is low, module currently inserted. + // Return status. + UHD_FW_TRACE_FSTR(INFO, "A new SFP+ module has been inserted into eth port %d.", eth); + } + } + } + + first_poll = 0; +} + +void n230_handle_sfp_updates(soft_reg_t* led_reg) +{ + for (uint32_t i = 0; i < N230_NUM_ETH_PORTS; i++) { + n230_poll_sfp_status(i); + } + + //TODO: Swap this when Ethernet port swap issues is fixed + soft_reg_write(led_reg, LED_REG_FIELD_ETH_LINK2, links_up[0]?1:0); + soft_reg_write(led_reg, LED_REG_FIELD_ETH_LINK1, links_up[1]?1:0); +} + |