forked from M-Labs/artiq
firmware/serwb: cleanup and improve messaging
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parent
c862471165
commit
574892a4e5
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@ -1,53 +1,71 @@
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use core::{cmp, str};
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use board_misoc::{csr, clock};
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fn read_rtm_ident(buf: &mut [u8]) -> &str {
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unsafe {
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csr::rtm_identifier::address_write(0);
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let len = csr::rtm_identifier::data_read();
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let len = cmp::min(len, buf.len() as u8);
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for i in 0..len {
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csr::rtm_identifier::address_write(1 + i);
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buf[i as usize] = csr::rtm_identifier::data_read();
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}
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str::from_utf8_unchecked(&buf[..len as usize])
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}
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}
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unsafe fn debug_print(rtm: bool) {
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info!("AMC serwb settings:");
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info!(" bitslip: {}", csr::serwb_phy_amc::control_bitslip_read());
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info!(" ready: {}", csr::serwb_phy_amc::control_ready_read());
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info!(" error: {}", csr::serwb_phy_amc::control_error_read());
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fn debug_print(rtm: bool) {
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debug!("AMC serwb settings:");
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debug!(" bitslip: {}", unsafe { csr::serwb_phy_amc::control_bitslip_read() });
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debug!(" ready: {}", unsafe { csr::serwb_phy_amc::control_ready_read() });
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debug!(" error: {}", unsafe { csr::serwb_phy_amc::control_error_read() });
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if rtm {
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info!("RTM serwb settings:");
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info!(" bitslip: {}", csr::serwb_phy_rtm::control_bitslip_read());
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info!(" ready: {}", csr::serwb_phy_rtm::control_ready_read());
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info!(" error: {}", csr::serwb_phy_rtm::control_error_read());
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debug!("RTM serwb settings:");
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debug!(" bitslip: {}", unsafe { csr::serwb_phy_rtm::control_bitslip_read() });
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debug!(" ready: {}", unsafe { csr::serwb_phy_rtm::control_ready_read() });
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debug!(" error: {}", unsafe { csr::serwb_phy_rtm::control_error_read() });
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}
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}
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fn prbs_test() {
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let prbs_test_cycles : u32 = 1<<22;
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let prbs_test_us : u64 = ((prbs_test_cycles as u64)*40)/125; // 40 bits @125MHz linerate
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// 40 bits @125MHz linerate
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let prbs_test_us : u64 = ((prbs_test_cycles as u64)*40)/125;
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info!("RTM to AMC link test...");
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unsafe {
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info!("RTM to AMC Link test");
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csr::serwb_phy_amc::control_prbs_cycles_write(prbs_test_cycles);
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csr::serwb_phy_amc::control_prbs_start_write(1);
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}
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clock::spin_us(prbs_test_us*110/100); // PRBS test time + 10%
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info!("{} errors", csr::serwb_phy_amc::control_prbs_errors_read());
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let errors = unsafe {
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csr::serwb_phy_amc::control_prbs_errors_read()
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};
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if errors == 0 {
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info!(" ...passed")
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} else {
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error!(" {} errors found", errors);
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}
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info!("AMC to RTM Link test");
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info!("AMC to RTM link test...");
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unsafe {
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csr::serwb_phy_rtm::control_prbs_cycles_write(prbs_test_cycles);
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csr::serwb_phy_rtm::control_prbs_start_write(1);
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}
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clock::spin_us(prbs_test_us*110/100); // PRBS test time + 10%
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info!("{} errors", csr::serwb_phy_rtm::control_prbs_errors_read());
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let errors = unsafe {
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csr::serwb_phy_rtm::control_prbs_errors_read()
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};
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if errors == 0 {
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info!(" ...passed");
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} else {
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error!(" {} errors found", errors);
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}
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}
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fn prng32(seed: &mut u32) -> u32 { *seed = 1664525 * *seed + 1013904223; *seed }
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fn magic_test() {
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// Try reading the magic number register on the other side of the bridge.
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let rtm_magic = unsafe {
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csr::rtm_magic::magic_read()
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};
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if rtm_magic != 0x5352544d {
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error!("incorrect RTM magic number: 0x{:08x}", rtm_magic);
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// proceed anyway
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}
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}
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fn prng32(seed: &mut u32) -> u32 {
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*seed = 1664525 * *seed + 1013904223;
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*seed
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}
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fn wishbone_test() {
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let test_length: u32 = 512;
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@ -76,7 +94,24 @@ fn wishbone_test() {
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}
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}
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}
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info!("{} errors", test_errors);
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if test_errors == 0 {
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info!(" ...passed");
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} else {
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error!(" {} errors found", test_errors);
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}
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}
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fn read_rtm_ident(buf: &mut [u8]) -> &str {
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unsafe {
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csr::rtm_identifier::address_write(0);
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let len = csr::rtm_identifier::data_read();
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let len = cmp::min(len, buf.len() as u8);
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for i in 0..len {
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csr::rtm_identifier::address_write(1 + i);
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buf[i as usize] = csr::rtm_identifier::data_read();
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}
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str::from_utf8_unchecked(&buf[..len as usize])
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}
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}
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pub fn wait_init() {
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@ -91,26 +126,13 @@ pub fn wait_init() {
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}
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}
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}
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info!("done.");
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info!(" ...done.");
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// PRBS test
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prbs_test();
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// Wishbone test
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magic_test();
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wishbone_test();
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// Try reading the magic number register on the other side of the bridge.
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let rtm_magic = unsafe {
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csr::rtm_magic::magic_read()
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};
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if rtm_magic != 0x5352544d {
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error!("incorrect RTM magic number: 0x{:08x}", rtm_magic);
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// proceed anyway
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}
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unsafe {
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debug_print(true);
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}
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info!("RTM gateware version {}", read_rtm_ident(&mut [0; 64]));
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}
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