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Add MIDI loopback test and fix app_midi_simple Tx

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Ed
2024-04-19 16:35:32 +01:00
parent 365e9bf014
commit bee1d878af
4 changed files with 81 additions and 29 deletions
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18
tests/test_midi/src/app_midi_simple.xc
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@@ -36,7 +36,7 @@ on tile[MIDI_TILE] : clock clk_midi = CLKBLK_MIDI;
#define TEST_COMMAND_FILE_TX "midi_tx_cmds.txt"
#define TEST_COMMAND_FILE_RX "midi_rx_cmds.txt"
#define DEBUG 0
#define DEBUG 0 // Prints for debugging. Turn off for actual test
#if DEBUG
#define dprintf(...) printf(__VA_ARGS__)
@@ -58,6 +58,7 @@ unsigned mini_in_parse_helper(unsigned midi[3]){
unsigned packed = 0;
for(int i = 0; i < 3; i++){
dprintf("Packing byte %d 0x%x\n", i, midi[i]);
{valid, packed} = midi_in_parse(m_state, CABLE_NUM, midi[i]);
if(valid){
return packed;
@@ -122,10 +123,14 @@ void test(chanend c_midi){
timer tmr;
int t_tx;
int t_tx; // Used for delay between Txs
int tx_end; // Used to wait for packet to have fully left
tmr :> t_tx;
tmr :> tx_end;
const int max_tx_time = XS1_TIMER_HZ / 31250 * 3 * (8 + 1 + 1); // 30 bits at 31.25 kbps is 0.96ms
const int tx_interval = XS1_TIMER_HZ / 8000; // SoF rate on HS
tx_end += max_tx_time; // One whole packet
while(tx_cmd_count < num_to_tx || rx_cmd_count < num_to_rx ){
select{
@@ -137,9 +142,10 @@ void test(chanend c_midi){
unsigned midi_data[3] = {0};
unsigned byte_count = 0;
{midi_data[0], midi_data[1], midi_data[2], byte_count} = midi_out_parse(byterev(rx_packet));
// Note this needs to always print for capff to pick it up
// Note this needs to always print for capfd in pytest to pick it up
printf("dut_midi_rx: %u %u %u\n", midi_data[0], midi_data[1], midi_data[2]);
rx_cmd_count++;
midi_send_ack(c_midi);
}
break;
@@ -148,15 +154,15 @@ void test(chanend c_midi){
unsigned tx_packet = mini_in_parse_helper(midi);
outuint(c_midi, byterev(tx_packet));
dprintf("Sent packet to midi: %u %u %u\n", commands[tx_cmd_count][0], commands[tx_cmd_count][1], commands[tx_cmd_count][2]);
t_tx += max_tx_time;
t_tx += tx_interval;
tx_end += max_tx_time;
break;
}
}
dprintf("Tx and Rx count met - exiting after last tx complete.\n");
tmr when timerafter(t_tx) :> int _; // wait until packet definitely departed
tmr when timerafter(tx_end) :> int _; // wait until packet definitely departed
delay_ticks(max_tx_time / 4); // Allow a few more bit times about to allow TXChecker to do it's thing
exit(0);
}