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Added define OUTPUT_VOLUME_CONTROL which disables output volume control - both in the descriptors and processing. NOTE: Still could be extended to disable volume in MIXER

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This commit is contained in:
Ross Owen
2014-04-17 14:14:05 +01:00
parent ff4cd84781
commit 641fbdfca6
3 changed files with 34 additions and 15 deletions
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11
module_usb_audio/devicedefines.h
View File

@@ -617,6 +617,17 @@ enum USBEndpointNumber_Out
ENDPOINT_COUNT_OUT /* End marker */ ENDPOINT_COUNT_OUT /* End marker */
}; };
/* Enable output volume control by default */
#ifndef OUTPUT_VOLUME_CONTROL
#define OUTPUT_VOLUME_CONTROL 1
#endif
/* Enable input volume control by default */
#ifndef INPUT_VOLUME_CONTROL
#define INPUT_VOLUME_CONTROL 1
#endif
#define AUDIO_STOP_FOR_DFU (0x12345678) #define AUDIO_STOP_FOR_DFU (0x12345678)
#define AUDIO_START_FROM_DFU (0x87654321) #define AUDIO_START_FROM_DFU (0x87654321)
#define AUDIO_REBOOT_FROM_DFU (0xa5a5a5a5) #define AUDIO_REBOOT_FROM_DFU (0xa5a5a5a5)

30
module_usb_audio/endpoint0/descriptors.h
View File

@@ -840,7 +840,9 @@ typedef struct
#ifdef OUTPUT #ifdef OUTPUT
/* Output path */ /* Output path */
USB_Descriptor_Audio_InputTerminal_t Audio_Out_InputTerminal; USB_Descriptor_Audio_InputTerminal_t Audio_Out_InputTerminal;
#if(OUTPUT_VOLUME_CONTROL==1)
USB_Descriptor_Audio_FeatureUnit_Out_t Audio_Out_FeatureUnit; USB_Descriptor_Audio_FeatureUnit_Out_t Audio_Out_FeatureUnit;
#endif
USB_Descriptor_Audio_OutputTerminal_t Audio_Out_OutputTerminal; USB_Descriptor_Audio_OutputTerminal_t Audio_Out_OutputTerminal;
#endif #endif
#ifdef INPUT #ifdef INPUT
@@ -1066,7 +1068,7 @@ USB_Config_Descriptor_Audio2_t cfgDesc_Audio2=
.bDescriptorSubType = UAC_CS_AC_INTERFACE_SUBTYPE_CLOCK_SELECTOR, .bDescriptorSubType = UAC_CS_AC_INTERFACE_SUBTYPE_CLOCK_SELECTOR,
.bClockID = ID_CLKSEL, .bClockID = ID_CLKSEL,
.bNrPins = NUM_CLOCKS, .bNrPins = NUM_CLOCKS,
ID_CLKSRC_INT, /* baCSourceID */ .baCSourceId[0] = ID_CLKSRC_INT, /* baCSourceID */
#ifdef SPDIF_RX #ifdef SPDIF_RX
ID_CLKSRC_SPDIF, /* baCSourceID */ ID_CLKSRC_SPDIF, /* baCSourceID */
@@ -1083,19 +1085,20 @@ USB_Config_Descriptor_Audio2_t cfgDesc_Audio2=
.Audio_Out_InputTerminal = .Audio_Out_InputTerminal =
{ {
.bLength = sizeof(USB_Descriptor_Audio_InputTerminal_t), .bLength = sizeof(USB_Descriptor_Audio_InputTerminal_t),
UAC_CS_DESCTYPE_INTERFACE, /* 1 bDescriptorType */ .bDescriptorType = UAC_CS_DESCTYPE_INTERFACE,
UAC_CS_AC_INTERFACE_SUBTYPE_INPUT_TERMINAL, /* 2 bDescriptorSubType: INPUT_TERMINAL */ .bDescriptorSubtype = UAC_CS_AC_INTERFACE_SUBTYPE_INPUT_TERMINAL,
ID_IT_USB, /* 3 bTerminalID */ .bTerminalID = ID_IT_USB,
USB_TERMTYPE_USB_STREAMING, /* 5 wTerminalType: USB Streaming */ .wTerminalType = USB_TERMTYPE_USB_STREAMING,
0x00, /* 6 bAssocTerminal */ .bAssocTerminal = 0x00,
ID_CLKSEL, /* 7 bCSourceID: ID of Clock Entity */ .bCSourceID = ID_CLKSEL,
NUM_USB_CHAN_OUT, /* 8 bNrChannels */ .bNrChannels = NUM_USB_CHAN_OUT,
0x00000000, /* 9 bmChannelConfig TODO. Set me! */ .bmChannelConfig = 0x00000000, /* TODO. Set me! */
.iChannelNames = offsetof(StringDescTable_t, outputChanStr_1)/sizeof(char *), .iChannelNames = offsetof(StringDescTable_t, outputChanStr_1)/sizeof(char *),
0x0000, /* 14 bmControls */ .bmControls = 0x0000,
6, /* 16 iTerminal */ .iTerminal = offsetof(StringDescTable_t, usbInputTermStr_Audio2)/sizeof(char *)
}, },
#if(OUTPUT_VOLUME_CONTROL == 1)
/* Feature Unit Descriptor */ /* Feature Unit Descriptor */
.Audio_Out_FeatureUnit = .Audio_Out_FeatureUnit =
{ {
@@ -1170,6 +1173,7 @@ USB_Config_Descriptor_Audio2_t cfgDesc_Audio2=
}, },
0, /* 60 iFeature */ 0, /* 60 iFeature */
}, },
#endif
/* Output Terminal Descriptor (Audio) */ /* Output Terminal Descriptor (Audio) */
.Audio_Out_OutputTerminal = .Audio_Out_OutputTerminal =
@@ -1180,7 +1184,11 @@ USB_Config_Descriptor_Audio2_t cfgDesc_Audio2=
ID_OT_AUD, /* 3 bTerminalID */ ID_OT_AUD, /* 3 bTerminalID */
.wTerminalType = UAC_TT_OUTPUT_TERMTYPE_SPEAKER, .wTerminalType = UAC_TT_OUTPUT_TERMTYPE_SPEAKER,
0x00, /* 6 bAssocTerminal */ 0x00, /* 6 bAssocTerminal */
#if (OUTPUT_VOLUME_CONTROL == 1)
FU_USBOUT, /* 7 bSourceID Connect to analog input feature unit*/ FU_USBOUT, /* 7 bSourceID Connect to analog input feature unit*/
#else
ID_IT_USB, /* 7 bSourceID Connect to analog input feature unit*/
#endif
ID_CLKSEL, /* 8 bCSourceUD */ ID_CLKSEL, /* 8 bCSourceUD */
0x0000, /* 9 bmControls */ 0x0000, /* 9 bmControls */
0, /* 11 iTerminal */ 0, /* 11 iTerminal */

6
module_usb_audio/usb_buffer/decouple.xc
View File

@@ -339,7 +339,7 @@ __builtin_unreachable();
g_aud_from_host_rdptr+=2; g_aud_from_host_rdptr+=2;
sample <<= 16; sample <<= 16;
#ifndef OUT_VOLUME_IN_MIXER #if (OUTPUT_VOLUME_CONTROL == 1) && !defined(OUT_VOLUME_IN_MIXER)
asm("ldw %0, %1[%2]":"=r"(mult):"r"(p_multOut),"r"(i)); asm("ldw %0, %1[%2]":"=r"(mult):"r"(p_multOut),"r"(i));
{h, l} = macs(mult, sample, 0, 0); {h, l} = macs(mult, sample, 0, 0);
/* Note, in 2 byte subslot mode - ignore lower result of macs */ /* Note, in 2 byte subslot mode - ignore lower result of macs */
@@ -367,7 +367,7 @@ __builtin_unreachable();
read_via_xc_ptr(sample, g_aud_from_host_rdptr); read_via_xc_ptr(sample, g_aud_from_host_rdptr);
g_aud_from_host_rdptr+=4; g_aud_from_host_rdptr+=4;
#ifndef OUT_VOLUME_IN_MIXER #if (OUTPUT_VOLUME_CONTROL == 1) && !defined(OUT_VOLUME_IN_MIXER)
asm("ldw %0, %1[%2]":"=r"(mult):"r"(p_multOut),"r"(i)); asm("ldw %0, %1[%2]":"=r"(mult):"r"(p_multOut),"r"(i));
{h, l} = macs(mult, sample, 0, 0); {h, l} = macs(mult, sample, 0, 0);
h <<= 3; h <<= 3;
@@ -422,7 +422,7 @@ __builtin_unreachable();
} }
unpackState++; unpackState++;
#ifndef OUT_VOLUME_IN_MIXER #if (OUTPUT_VOLUME_CONTROL == 1) && !defined(OUT_VOLUME_IN_MIXER)
asm("ldw %0, %1[%2]":"=r"(mult):"r"(p_multOut),"r"(i)); asm("ldw %0, %1[%2]":"=r"(mult):"r"(p_multOut),"r"(i));
{h, l} = macs(mult, sample, 0, 0); {h, l} = macs(mult, sample, 0, 0);
h <<= 3; h <<= 3;