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This commit is contained in:
Russell Gallop
2011-08-11 15:02:53 +01:00
parent e6bc0b739e
commit 85d5e6980d
2 changed files with 10 additions and 10 deletions
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2
module_usb_midi/src/usb_midi.h
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@@ -39,7 +39,7 @@ void midi_get_ack_or_data(chanend c, int &is_ack, unsigned int &datum);
INLINE void midi_get_ack_or_data(chanend c, int &is_ack, unsigned int &datum) {
if (testct(c)) {
is_ack = 1;
(void) inct(c);
(void) inct(c); // read 1-bytes control token
(void) inuchar(c);
(void) inuchar(c);
(void) inuchar(c);

18
module_usb_midi/src/usb_midi.xc
View File

@@ -18,8 +18,8 @@ static unsigned bit_time = XS1_TIMER_MHZ * 1000000 / (unsigned) RATE;
static unsigned bit_time_2 = (XS1_TIMER_MHZ * 1000000 / (unsigned) RATE) / 2;
// For debugging
int mr_count = 0;
int th_count = 0;
int mr_count = 0; // MIDI received (from HOST)
int th_count = 0; // MIDI sent (To Host)
#ifdef MIDI_LOOPBACK
static inline void handle_byte_from_uart(chanend c_midi, struct midi_in_parse_state &mips, int cable_number,
@@ -49,19 +49,17 @@ static inline void handle_byte_from_uart(chanend c_midi, struct midi_in_parse_
}
#endif
int uout_count = 0;
int uin_count = 0;
int uout_count = 0; // UART bytes out
int uin_count = 0; // UART bytes in
void usb_midi(in port ?p_midi_in, out port ?p_midi_out,
clock ?clk_midi,
chanend c_midi,
unsigned cable_number)
{
int is_ack;
unsigned int datum;
unsigned symbol = 0x0;
unsigned outputting = 0;
unsigned time;
unsigned symbol = 0x0; // Symbol in progress of being sent out
unsigned outputting = 0; // Guard when outputting data
unsigned time; // Timer value used for outputting
//unsigned inputPortState, newInputPortState;
int waiting_for_ack = 0;
// Receiver
@@ -106,6 +104,8 @@ void usb_midi(in port ?p_midi_in, out port ?p_midi_out,
#endif
while (1) {
int is_ack;
unsigned int datum;
select
{
// Input to read the start bit