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Save resources if SPDIF or MIXER not enabled

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This commit is contained in:
Russell
2011-11-21 11:35:28 +00:00
parent 697f68344b
commit af0d46800d
5 changed files with 26 additions and 2 deletions
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4
module_usb_aud_shared/usb_buffer/decouple.xc
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@@ -165,17 +165,21 @@ static inline void swap(xc_ptr &a, xc_ptr &b)
}
// shared global midi buffering variables
#ifdef MIDI
unsigned g_midi_from_host_flag = 0;
unsigned g_midi_to_host_flag = 0;
int midi_to_host_usb_ep = 0;
int midi_from_host_usb_ep = 0;
#endif
int aud_from_host_usb_ep = 0;
int aud_to_host_usb_ep = 0;
int int_usb_ep = 0;
#ifdef MIDI
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];
#endif
// shared global aud buffering variables

6
module_usb_aud_shared/usb_buffer/usb_buffer.xc
View File

@@ -85,7 +85,9 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
XUD_ep ep_midi_from_host = XUD_Init_Ep(c_midi_from_host);
XUD_ep ep_midi_to_host = XUD_Init_Ep(c_midi_to_host);
#endif
#if defined(SPDIF_RX) || defined(ADAT_RX)
XUD_ep ep_int = XUD_Init_Ep(c_int);
#endif
unsigned datalength;
unsigned tmp;
@@ -116,7 +118,9 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
set_thread_fast_mode_on();
#if defined(SPDIF_RX) || defined(ADAT_RX)
asm("stw %0, dp[int_usb_ep]"::"r"(ep_int));
#endif
asm("stw %0, dp[aud_from_host_usb_ep]"::"r"(ep_aud_out));
asm("stw %0, dp[aud_to_host_usb_ep]"::"r"(ep_aud_in));
asm("stw %0, dp[buffer_aud_ctl_chan]"::"r"(c_aud_ctl));
@@ -195,6 +199,7 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
/* Wait for response from XUD and service relevant EP */
select
{
#if defined(SPDIF_RX) || defined(ADAT_RX)
/* Interrupt EP, send back interrupt data. Note, request made from decouple */
case inuint_byref(c_int, tmp):
{
@@ -221,6 +226,7 @@ void buffer(register chanend c_aud_out, register chanend c_aud_in, chanend c_aud
XUD_SetNotReady(ep_int);
break;
}
#endif
/* Sample Freq our chan count update from ep 0 */
case inuint_byref(c_aud_ctl, tmp):