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Plug in variable size queue implementation for saving buffer space in iAP.

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Russell
2011-12-06 17:12:44 +00:00
parent f979c80dbd
commit 1e1cb9288d
3 changed files with 49 additions and 10 deletions
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9
module_usb_midi/src/usb_midi.xc
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@@ -1,6 +1,7 @@
#include <xs1.h>
#include <xclib.h>
#include <print.h>
#include <stdint.h>
#include "usb_midi.h"
#include "midiinparse.h"
#include "midioutparse.h"
@@ -91,7 +92,7 @@ chanend c_iap, chanend ?c_i2c // iOS stuff
// One place buffer for data going out to host
queue midi_to_host_fifo;
unsigned midi_to_host_fifo_arr[1];
unsigned char midi_to_host_fifo_arr[4]; // Used for 32bit USB MIDI events
unsigned outputting_symbol, outputted_symbol;
@@ -99,14 +100,14 @@ chanend c_iap, chanend ?c_i2c // iOS stuff
// the symbol fifo (to go out of uart)
queue symbol_fifo;
unsigned symbol_fifo_arr[USB_MIDI_DEVICE_OUT_FIFO_SIZE];
unsigned char symbol_fifo_arr[USB_MIDI_DEVICE_OUT_FIFO_SIZE * 4]; // Used for 32bit USB MIDI events
unsigned rxPT, txPT;
int midi_from_host_overflow = 0;
//configure_clock_rate(clk_midi, 100, 1);
init_queue(symbol_fifo, symbol_fifo_arr, USB_MIDI_DEVICE_OUT_FIFO_SIZE);
init_queue(midi_to_host_fifo, midi_to_host_fifo_arr, 1);
init_queue(symbol_fifo, symbol_fifo_arr, USB_MIDI_DEVICE_OUT_FIFO_SIZE, 4);
init_queue(midi_to_host_fifo, midi_to_host_fifo_arr, 1, 4);
configure_out_port_no_ready(p_midi_out, clk_midi, 1);
configure_in_port(p_midi_in, clk_midi);