dengweijie/lib_xua
1
0
Fork 0
forked from PAWPAW-Mirror/lib_xua
Code Pull Requests Activity

Copy across from apps_usb_aud_shared

Browse Source
This commit is contained in:
Russell Gallop
2011-07-08 15:12:28 +01:00
parent 0235ee8dcc
commit 7bc53853c4
14 changed files with 248 additions and 305 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
module_usb_aud_shared/usb_buffer/decouple.xc
View File

@@ -1,24 +1,6 @@
/**
* Module: module_usb_aud_shared
* Version: 2v3
* Build: 920238b18f6b0967226369682640e1b063865f02
* File: decouple.xc
*
* The copyrights, all other intellectual and industrial
* property rights are retained by XMOS and/or its licensors.
* Terms and conditions covering the use of this code can
* be found in the Xmos End User License Agreement.
*
* Copyright XMOS Ltd 2010
*
* In the case where this code is a modification of existing code
* under a separate license, the separate license terms are shown
* below. The modifications to the code are still covered by the
* copyright notice above.
*
**/
#include <xs1.h>
#include <print.h>
#include <assert.h>
#include "xc_ptr.h"
#define NO_INLINE_MIDI_SELECT_HANDLER 1
#include "usb_midi.h"
@@ -175,7 +157,7 @@ int int_usb_ep = 0;
unsigned int g_midi_to_host_buffer_A[MAX_USB_MIDI_PACKET_SIZE/4+4];
unsigned int g_midi_to_host_buffer_B[MAX_USB_MIDI_PACKET_SIZE/4+4];
int g_midi_from_host_buffer[MAX_USB_MIDI_PACKET_SIZE+4];
int g_midi_from_host_buffer[MAX_USB_MIDI_PACKET_SIZE/4+4];
// shared global aud buffering variables
@@ -805,18 +787,12 @@ void decouple(chanend c_mix_out,
}
/* Reset OUT buffer state */
outOverflow = 0;
outUnderflow = 1;
SET_SHARED_GLOBAL(g_aud_from_host_rdptr, aud_from_host_fifo_start);
SET_SHARED_GLOBAL(g_aud_from_host_wrptr, aud_from_host_fifo_start);
SET_SHARED_GLOBAL(aud_data_remaining_to_device, 0);
if(outOverflow)
{
XUD_SetReady(aud_from_host_usb_ep, 1);
outOverflow = 0;
}
/* Wait for handshake back and pass back up */
chkct(c_mix_out, XS1_CT_END);