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Further simplification of IAP receive data case - no longer stick length in buffer[0]. Its pointless

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Ross Owen
2013-03-07 16:56:57 +00:00
parent 609d210efd
commit ab98969650
1 changed files with 2 additions and 7 deletions
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9
module_usb_audio/usb_buffer/usb_buffer.xc
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@@ -595,11 +595,6 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
asm("#iap h->d"); asm("#iap h->d");
if(tmp >= 0) if(tmp >= 0)
{ {
/* Stick length in beginning of buffer.. */
write_via_xc_ptr(iap_from_host_buffer, tmp);
/* Read length from buffer[0] */
//read_via_xc_ptr(iap_data_remaining_to_device, iap_from_host_buffer);
iap_data_remaining_to_device = tmp; iap_data_remaining_to_device = tmp;
// Send length first so iAP thread knows how much data to expect // Send length first so iAP thread knows how much data to expect
@@ -607,7 +602,7 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
outuint(c_iap, iap_data_remaining_to_device); outuint(c_iap, iap_data_remaining_to_device);
/* Increment read pointer - buffer[0] is length */ /* Increment read pointer - buffer[0] is length */
iap_from_host_rdptr = iap_from_host_buffer + 4; iap_from_host_rdptr = iap_from_host_buffer;
if (iap_data_remaining_to_device) if (iap_data_remaining_to_device)
{ {
@@ -740,7 +735,7 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
if (iap_data_remaining_to_device == 0) if (iap_data_remaining_to_device == 0)
{ {
/* We have read an entire packet - Mark ready to receive another */ /* We have read an entire packet - Mark ready to receive another */
XUD_SetReady_OutPtr(ep_iap_from_host, iap_from_host_buffer+4); XUD_SetReady_OutPtr(ep_iap_from_host, iap_from_host_buffer);
} }
else else
{ {