648 lines
27 KiB
C
Executable File
648 lines
27 KiB
C
Executable File
/**
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* g
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* @file endpoint0.xc
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* @brief Implements endpoint zero for an USB Audio 1.0/2.0 device
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* @author Ross Owen, XMOS Semiconductor
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*/
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#include <xs1.h>
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#include <safestring.h>
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#include <stddef.h>
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#include "xud.h" /* XUD user defines and functions */
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#include "usb_std_requests.h"
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#include "usbaudio20.h" /* Defines from USB Audio 2.0 spec */
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#include "devicedefines.h"
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#include "usb_device.h" /* Standard descriptor requests */
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#include "descriptors.h" /* This devices descriptors */
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#include "commands.h"
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#include "audiostream.h"
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#include "hostactive.h"
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#include "vendorrequests.h"
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#include "dfu_types.h"
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#include "xc_ptr.h"
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#include "audiorequests.h"
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#ifdef HID_CONTROLS
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#include "hid.h"
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#endif
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#if DSD_CHANS_DAC > 0
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#include "dsd_support.h"
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#endif
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#ifndef __XC__
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/* Support for C */
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#define null 0
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#define outuint(c, x) asm ("out res[%0], %1" :: "r" (c), "r" (x))
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#define chkct(c, x) asm ("chkct res[%0], %1" :: "r" (c), "r" (x))
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#endif
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/* Some warnings.... */
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/* Windows does not have a built in DFU driver (windows will prompt), so warn that DFU will not be functional in Audio 1.0 mode */
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#if ((AUDIO_CLASS==1) || defined(AUDIO_CLASS_FALLBACK)) && defined(DFU)
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#warning DFU will not be enabled in AUDIO 1.0 mode due to Windows requesting driver
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#endif
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/* MIDI not supported in Audio 1.0 mode */
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#if ((AUDIO_CLASS==1) || defined(AUDIO_CLASS_FALLBACK)) && defined(MIDI)
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#warning MIDI is currently not supported and will not be enabled in AUDIO 1.0 mode
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#endif
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/* If PID_DFU not defined, standard PID used.. this is probably what we want.. */
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#ifndef PID_DFU
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#warning PID_DFU not defined, Using PID_AUDIO_2. This is probably fine!
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#endif
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#ifdef DFU
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#include "dfu.h"
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#define DFU_IF_NUM INPUT_INTERFACES + OUTPUT_INTERFACES + MIDI_INTERFACES + 1
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unsigned int DFU_mode_active = 0; // 0 - App active, 1 - DFU active
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extern void device_reboot(chanend);
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#endif
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/* Global volume and mute tables */
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int volsOut[NUM_USB_CHAN_OUT + 1];
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unsigned int mutesOut[NUM_USB_CHAN_OUT + 1];
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//unsigned int multOut[NUM_USB_CHAN_OUT + 1];
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int volsIn[NUM_USB_CHAN_IN + 1];
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unsigned int mutesIn[NUM_USB_CHAN_IN + 1];
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//unsigned int multIn[NUM_USB_CHAN_IN + 1];
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#ifdef MIXER
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unsigned char mixer1Crossbar[18];
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short mixer1Weights[18*8];
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unsigned char channelMap[NUM_USB_CHAN_OUT + NUM_USB_CHAN_IN + MAX_MIX_COUNT];
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#if NUM_USB_CHAN_OUT > 0
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unsigned char channelMapAud[NUM_USB_CHAN_OUT];
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#endif
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#if NUM_USB_CHAN_IN > 0
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unsigned char channelMapUsb[NUM_USB_CHAN_IN];
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#endif
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unsigned char mixSel[MIX_INPUTS];
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#endif
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int min(int x, int y);
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/* Global current device config var*/
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extern unsigned char g_currentConfig;
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/* Global endpoint status arrays - declared in usb_device.xc */
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extern unsigned char g_interfaceAlt[];
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/* Global variable for current USB bus speed (i.e. FS/HS) */
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XUD_BusSpeed_t g_curUsbSpeed = 0;
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#ifdef NATIVE_DSD
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/* We remember if we are in DSD mode to avoid Configuring the DAC too often - thus avoiding pops and clicks */
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unsigned g_dsdMode = 0;
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#endif
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const unsigned g_subSlot_Out_HS[OUTPUT_FORMAT_COUNT] = {HS_STREAM_FORMAT_OUTPUT_1_SUBSLOT_BYTES,
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HS_STREAM_FORMAT_OUTPUT_2_SUBSLOT_BYTES,
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HS_STREAM_FORMAT_OUTPUT_3_SUBSLOT_BYTES};
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const unsigned g_subSlot_Out_FS[OUTPUT_FORMAT_COUNT] = {FS_STREAM_FORMAT_OUTPUT_1_SUBSLOT_BYTES,
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FS_STREAM_FORMAT_OUTPUT_2_SUBSLOT_BYTES,
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FS_STREAM_FORMAT_OUTPUT_3_SUBSLOT_BYTES};
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const unsigned g_dataFormat_Out[OUTPUT_FORMAT_COUNT] = {STREAM_FORMAT_OUTPUT_1_DATAFORMAT,
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STREAM_FORMAT_OUTPUT_2_DATAFORMAT,
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STREAM_FORMAT_OUTPUT_3_DATAFORMAT};
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const unsigned g_subSlot_In_HS[INPUT_FORMAT_COUNT] = {HS_STREAM_FORMAT_INPUT_1_SUBSLOT_BYTES};
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const unsigned g_subSlot_In_FS[INPUT_FORMAT_COUNT] = {FS_STREAM_FORMAT_INPUT_1_SUBSLOT_BYTES};
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const unsigned g_dataFormat_In[INPUT_FORMAT_COUNT] = {STREAM_FORMAT_INPUT_1_DATAFORMAT};
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/* Endpoint 0 function. Handles all requests to the device */
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void Endpoint0(chanend c_ep0_out, chanend c_ep0_in, chanend c_audioControl,
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NULLABLE_RESOURCE(chanend, c_mix_ctl),
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NULLABLE_RESOURCE(chanend, c_clk_ctl),
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NULLABLE_RESOURCE(chanend, c_usb_test))
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{
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USB_SetupPacket_t sp;
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XUD_ep ep0_out = XUD_InitEp(c_ep0_out);
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XUD_ep ep0_in = XUD_InitEp(c_ep0_in);
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/* Init tables for volumes (+ 1 for master) */
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for(int i = 0; i < NUM_USB_CHAN_OUT + 1; i++)
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{
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volsOut[i] = 0;
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mutesOut[i] = 0;
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}
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for(int i = 0; i < NUM_USB_CHAN_IN + 1; i++)
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{
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volsIn[i] = 0;
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mutesIn[i] = 0;
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}
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#ifdef MIXER
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/* Set up mixer default state */
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for (int i = 0; i < 18*8; i++)
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{
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mixer1Weights[i] = 0x8001; //-inf
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}
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/* Configure default connections */
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mixer1Weights[0] = 0;
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mixer1Weights[9] = 0;
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mixer1Weights[18] = 0;
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mixer1Weights[27] = 0;
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mixer1Weights[36] = 0;
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mixer1Weights[45] = 0;
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mixer1Weights[54] = 0;
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mixer1Weights[63] = 0;
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#if NUM_USB_CHAN_OUT > 0
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/* Setup up audio output channel mapping */
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for(int i = 0; i < NUM_USB_CHAN_OUT; i++)
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{
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channelMapAud[i] = i;
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}
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#endif
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#if NUM_USB_CHAN_IN > 0
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for(int i = 0; i < NUM_USB_CHAN_IN; i++)
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{
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channelMapUsb[i] = i + NUM_USB_CHAN_OUT;
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}
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#endif
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/* Set up channel mapping default */
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for (int i = 0; i < NUM_USB_CHAN_OUT + NUM_USB_CHAN_IN; i++)
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{
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channelMap[i] = i;
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}
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#if MAX_MIX_COUNT > 0
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/* Mixer outputs mapping defaults */
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for (int i = 0; i < MAX_MIX_COUNT; i++)
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{
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channelMap[NUM_USB_CHAN_OUT + NUM_USB_CHAN_IN + i] = i;
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}
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#endif
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/* Init mixer inputs */
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for(int i = 0; i < MIX_INPUTS; i++)
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{
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mixSel[i] = i;
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}
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#endif
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#ifdef VENDOR_AUDIO_REQS
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VendorAudioRequestsInit(c_audioControl, c_mix_ctl, c_clk_ctl);
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#endif
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#ifdef DFU
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/* Check if device has started in DFU mode */
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if (DFUReportResetState(null))
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{
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/* Stop audio */
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outuint(c_audioControl, SET_SAMPLE_FREQ);
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outuint(c_audioControl, AUDIO_STOP_FOR_DFU);
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// No Handshake
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DFU_mode_active = 1;
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}
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#endif
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while(1)
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{
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/* Returns XUD_RES_OKAY for success, XUD_RES_RST for bus reset */
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#if defined(__XC__)
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XUD_Result_t result = USB_GetSetupPacket(ep0_out, ep0_in, sp);
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#else
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XUD_Result_t result = USB_GetSetupPacket(ep0_out, ep0_in, &sp);
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#endif
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if (result == XUD_RES_OKAY)
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{
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result = XUD_RES_ERR;
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/* Inspect Request type and Receipient and direction */
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switch( (sp.bmRequestType.Direction << 7) | (sp.bmRequestType.Recipient ) | (sp.bmRequestType.Type << 5) )
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{
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case USB_BMREQ_H2D_STANDARD_INT:
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/* Over-riding USB_StandardRequests implementation */
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if(sp.bRequest == USB_SET_INTERFACE)
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{
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/* Check for audio stream from host start/stop */
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if(sp.wIndex == 1) // Ouput interface
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{
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/* Check the alt is in range */
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if(sp.wValue <= OUTPUT_FORMAT_COUNT)
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{
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/* Alt 0 is stream stop */
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if(sp.wValue > 0)
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{
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/* Send format of data onto buffering */
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outuint(c_audioControl, SET_STREAM_FORMAT_OUT);
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outuint(c_audioControl, g_dataFormat_Out[sp.wValue-1]); /* Data format (PCM/DSD) */
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if(g_curUsbSpeed == XUD_SPEED_HS)
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{
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outuint(c_audioControl, NUM_USB_CHAN_OUT); /* Channel count */
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outuint(c_audioControl, g_subSlot_Out_HS[sp.wValue-1]); /* Subslot */
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}
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else
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{
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outuint(c_audioControl, NUM_USB_CHAN_OUT_FS);
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outuint(c_audioControl, g_subSlot_Out_FS[sp.wValue-1]);
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}
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/* Handshake */
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chkct(c_audioControl, XS1_CT_END);
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}
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}
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}
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else if(sp.wIndex == 2) // Input interface
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{
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/* Check the alt is in range */
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if(sp.wValue <= INPUT_FORMAT_COUNT)
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{
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/* Alt 0 is stream stop */
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if(sp.wValue > 0)
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{
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/* Send format of data onto buffering */
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outuint(c_audioControl, SET_STREAM_FORMAT_IN);
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outuint(c_audioControl, g_dataFormat_In[sp.wValue-1]); /* Data format (PCM/DSD) */
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if(g_curUsbSpeed == XUD_SPEED_HS)
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{
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outuint(c_audioControl, NUM_USB_CHAN_IN); /* Channel count */
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outuint(c_audioControl, g_subSlot_In_HS[sp.wValue-1]); /* Subslot */
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}
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else
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{
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outuint(c_audioControl, NUM_USB_CHAN_IN_FS);
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outuint(c_audioControl, g_subSlot_In_FS[sp.wValue-1]);
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}
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/* Handshake */
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chkct(c_audioControl, XS1_CT_END);
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}
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}
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}
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#if defined(OUTPUT) && defined(INPUT)
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/* Check for stream start stop on output and input audio interfaces */
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if(sp.wValue && !g_interfaceAlt[1] && !g_interfaceAlt[2])
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{
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/* If start and input AND output not currently running */
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UserAudioStreamStart();
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}
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else if(((sp.wIndex == 1) && (!sp.wValue)) && g_interfaceAlt[1] && (!g_interfaceAlt[2]))
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{
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/* if output stop and output running and input not running */
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UserAudioStreamStop();
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}
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else if(((sp.wIndex == 2) && (!sp.wValue)) && g_interfaceAlt[2] && (!g_interfaceAlt[1]))
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{
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/* if input stop and input running and output not running */
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UserAudioStreamStop();
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}
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#elif defined(OUTPUT) || defined(INPUT)
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if(sp.wValue && (!g_interfaceAlt[1]))
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{
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/* if start and not currently running */
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UserAudioStreamStart();
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}
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else if (!sp.wValue && g_interfaceAlt[1])
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{
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/* if stop and currently running */
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UserAudioStreamStop();
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}
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#endif
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} /* if(sp.bRequest == SET_INTERFACE) */
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break; /* BMREQ_H2D_STANDARD_INT */
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case USB_BMREQ_D2H_STANDARD_INT:
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switch(sp.bRequest)
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{
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#ifdef HID_CONTROLS
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case USB_GET_DESCRIPTOR:
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/* Check what inteface request is for */
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if(sp.wIndex == INTERFACE_NUM_HID)
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{
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/* High byte of wValue is descriptor type */
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unsigned descriptorType = sp.wValue & 0xff00;
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switch (descriptorType)
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{
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case HID_REPORT:
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/* Return HID report descriptor */
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result = XUD_DoGetRequest(ep0_out, ep0_in, hidReportDescriptor,
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sizeof(hidReportDescriptor), sp.wLength);
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break;
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}
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}
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break;
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#endif
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default:
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break;
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}
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break;
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/* Recipient: Device */
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case USB_BMREQ_H2D_STANDARD_DEV:
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/* Inspect for actual request */
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switch( sp.bRequest )
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{
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/* Standard request: SetConfiguration */
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/* Overriding implementation in USB_StandardRequests */
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case USB_SET_CONFIGURATION:
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//if(g_current_config == 1)
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{
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/* Consider host active with valid driver at this point */
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UserHostActive(1);
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}
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/* We want to run USB_StandardsRequests() implementation also. Don't modify result
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* and don't call XUD_DoSetRequestStatus() */
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break;
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default:
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//Unknown device request"
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break;
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}
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break;
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/* Audio Class 1.0 Sampling Freqency Requests go to Endpoint */
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case USB_BMREQ_H2D_CLASS_EP:
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case USB_BMREQ_D2H_CLASS_EP:
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{
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unsigned epNum = sp.wIndex & 0xff;
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if ((epNum == 0x82) || (epNum == 0x01))
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{
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#if (AUDIO_CLASS == 2) && defined(AUDIO_CLASS_FALLBACK)
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if(g_curUsbSpeed == XUD_SPEED_FS)
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{
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result = AudioEndpointRequests_1(ep0_out, ep0_in, &sp, c_audioControl, c_mix_ctl, c_clk_ctl);
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}
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#elif (AUDIO_CLASS==1)
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result = AudioEndpointRequests_1(ep0_out, ep0_in, &sp, c_audioControl, c_mix_ctl, c_clk_ctl);
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#endif
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}
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}
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break;
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case USB_BMREQ_H2D_CLASS_INT:
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case USB_BMREQ_D2H_CLASS_INT:
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{
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unsigned interfaceNum = sp.wIndex & 0xff;
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//unsigned request = (sp.bmRequestType.Recipient ) | (sp.bmRequestType.Type << 5);
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/* TODO Check on return value retval = */
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#ifdef DFU
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unsigned DFU_IF = DFU_IF_NUM;
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/* DFU interface number changes based on which mode we are currently running in */
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if (DFU_mode_active)
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{
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DFU_IF = 0;
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}
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if (interfaceNum == DFU_IF)
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{
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/* If running in application mode stop audio */
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/* Don't interupt audio for save and restore cmds */
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if ((DFU_IF == DFU_IF_NUM) && (sp.bRequest != XMOS_DFU_SAVESTATE) &&
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(sp.bRequest != XMOS_DFU_RESTORESTATE))
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{
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// Stop audio
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outuint(c_audioControl, SET_SAMPLE_FREQ);
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outuint(c_audioControl, AUDIO_STOP_FOR_DFU);
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// Handshake
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chkct(c_audioControl, XS1_CT_END);
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}
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#ifdef __XC__
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/* This will return 1 if reset requested */
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if (DFUDeviceRequests(ep0_out, ep0_in, sp, null, g_interfaceAlt[sp.wIndex], 1))
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#else
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/* This will return 1 if reset requested */
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if (DFUDeviceRequests(ep0_out, &ep0_in, &sp, null, g_interfaceAlt[sp.wIndex], 1))
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#endif
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{
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DFUDelay(50000000);
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device_reboot(c_audioControl);
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}
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/* TODO we should not make the assumption that all DFU requests are handled */
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result = 0;
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}
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#endif
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/* Check for: - Audio CONTROL interface request - always 0, note we check for DFU first
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* - Audio STREAMING interface request (In or Out)
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* - Audio endpoint request (Audio 1.0 Sampling freq requests are sent to the endpoint)
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*/
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if((interfaceNum == 0) || (interfaceNum == 1) || (interfaceNum == 2))
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{
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#if (AUDIO_CLASS == 2) && defined(AUDIO_CLASS_FALLBACK)
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if(g_curUsbSpeed == XUD_SPEED_HS)
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{
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result = AudioClassRequests_2(ep0_out, ep0_in, &sp, c_audioControl, c_mix_ctl, c_clk_ctl);
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}
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else
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{
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result = AudioClassRequests_1(ep0_out, ep0_in, &sp, c_audioControl, c_mix_ctl, c_clk_ctl);
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}
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#elif (AUDIO_CLASS==2)
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result = AudioClassRequests_2(ep0_out, ep0_in, &sp, c_audioControl, c_mix_ctl, c_clk_ctl);
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#else
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result = AudioClassRequests_1(ep0_out, ep0_in, &sp, c_audioControl, c_mix_ctl, c_clk_ctl);
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#endif
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#ifdef VENDOR_AUDIO_REQS
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#error
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/* If result is ERR at this point, then request to audio interface not handled - handle vendor audio reqs */
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if(result == XUD_RES_ERR)
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{
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result = VendorAudioRequests(ep0_out, ep0_in, sp.bRequest,
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sp.wValue >> 8, sp.wValue & 0xff,
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sp.wIndex >> 8, sp.bmRequestType.Direction,
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c_audioControl, c_mix_ctl, c_clk_ctl);
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}
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#endif
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}
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}
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break;
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default:
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break;
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}
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} /* if(result == XUD_RES_OKAY) */
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if(result == XUD_RES_ERR)
|
|
{
|
|
#ifdef DFU
|
|
if (!DFU_mode_active)
|
|
{
|
|
#endif
|
|
#ifdef AUDIO_CLASS_FALLBACK
|
|
/* Return Audio 2.0 Descriptors with Audio 1.0 as fallback */
|
|
result = USB_StandardRequests(ep0_out, ep0_in,
|
|
(unsigned char*)&devDesc_Audio2, sizeof(devDesc_Audio2),
|
|
(unsigned char*)&cfgDesc_Audio2, sizeof(cfgDesc_Audio2),
|
|
(unsigned char*)&devDesc_Audio1, sizeof(devDesc_Audio1),
|
|
cfgDesc_Audio1, sizeof(cfgDesc_Audio1),
|
|
(char**)&g_strTable, sizeof(g_strTable)/sizeof(char *),
|
|
&sp, c_usb_test, g_curUsbSpeed);
|
|
#elif FULL_SPEED_AUDIO_2
|
|
/* Return Audio 2.0 Descriptors for high_speed and full-speed */
|
|
|
|
/* Unfortunately we need to munge the descriptors a bit between full and high-speed */
|
|
if(g_curUsbSpeed == XUD_SPEED_HS)
|
|
{
|
|
/* Modify Audio Class 2.0 Config descriptor for High-speed operation */
|
|
#if (NUM_USB_CHAN_OUT > 0)
|
|
cfgDesc_Audio2.Audio_CS_Control_Int.Audio_Out_InputTerminal.bNrChannels = NUM_USB_CHAN_OUT;
|
|
#if (NUM_USB_CHAN_OUT > 0)
|
|
cfgDesc_Audio2.Audio_Out_Format.bSubslotSize = HS_STREAM_FORMAT_OUTPUT_1_SUBSLOT_BYTES;
|
|
cfgDesc_Audio2.Audio_Out_Format.bBitResolution = HS_STREAM_FORMAT_OUTPUT_1_RESOLUTION_BITS;
|
|
cfgDesc_Audio2.Audio_Out_Endpoint.wMaxPacketSize = HS_STREAM_FORMAT_OUTPUT_1_MAXPACKETSIZE;
|
|
cfgDesc_Audio2.Audio_Out_ClassStreamInterface.bNrChannels = NUM_USB_CHAN_OUT;
|
|
#endif
|
|
#if (OUTPUT_FORMAT_COUNT > 1)
|
|
cfgDesc_Audio2.Audio_Out_Format_2.bSubslotSize = HS_STREAM_FORMAT_OUTPUT_2_SUBSLOT_BYTES;
|
|
cfgDesc_Audio2.Audio_Out_Format_2.bBitResolution = HS_STREAM_FORMAT_OUTPUT_2_RESOLUTION_BITS;
|
|
cfgDesc_Audio2.Audio_Out_Endpoint_2.wMaxPacketSize = HS_STREAM_FORMAT_OUTPUT_2_MAXPACKETSIZE;
|
|
cfgDesc_Audio2.Audio_Out_ClassStreamInterface_2.bNrChannels = NUM_USB_CHAN_OUT;
|
|
#endif
|
|
|
|
#if (OUTPUT_FORMAT_COUNT > 2)
|
|
cfgDesc_Audio2.Audio_Out_Format_3.bSubslotSize = HS_STREAM_FORMAT_OUTPUT_3_SUBSLOT_BYTES;
|
|
cfgDesc_Audio2.Audio_Out_Format_3.bBitResolution = HS_STREAM_FORMAT_OUTPUT_3_RESOLUTION_BITS;
|
|
cfgDesc_Audio2.Audio_Out_Endpoint_3.wMaxPacketSize = HS_STREAM_FORMAT_OUTPUT_3_MAXPACKETSIZE;
|
|
cfgDesc_Audio2.Audio_Out_ClassStreamInterface_3.bNrChannels = NUM_USB_CHAN_OUT;
|
|
#endif
|
|
#endif
|
|
#if (NUM_USB_CHAN_IN > 0)
|
|
cfgDesc_Audio2.Audio_CS_Control_Int.Audio_In_InputTerminal.bNrChannels = NUM_USB_CHAN_IN;
|
|
cfgDesc_Audio2.Audio_In_Format.bSubslotSize = HS_STREAM_FORMAT_INPUT_1_SUBSLOT_BYTES;
|
|
cfgDesc_Audio2.Audio_In_Format.bBitResolution = HS_STREAM_FORMAT_INPUT_1_RESOLUTION_BITS;
|
|
cfgDesc_Audio2.Audio_In_Endpoint.wMaxPacketSize = HS_STREAM_FORMAT_INPUT_1_MAXPACKETSIZE;
|
|
cfgDesc_Audio2.Audio_In_ClassStreamInterface.bNrChannels = NUM_USB_CHAN_IN;
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
/* Modify Audio Class 2.0 Config descriptor for Full-speed operation */
|
|
#if (NUM_USB_CHAN_OUT > 0)
|
|
cfgDesc_Audio2.Audio_CS_Control_Int.Audio_Out_InputTerminal.bNrChannels = NUM_USB_CHAN_OUT_FS;
|
|
#if (NUM_USB_CHAN_OUT > 0)
|
|
cfgDesc_Audio2.Audio_Out_Format.bSubslotSize = FS_STREAM_FORMAT_OUTPUT_1_SUBSLOT_BYTES;
|
|
cfgDesc_Audio2.Audio_Out_Format.bBitResolution = FS_STREAM_FORMAT_OUTPUT_1_RESOLUTION_BITS;
|
|
cfgDesc_Audio2.Audio_Out_Endpoint.wMaxPacketSize = FS_STREAM_FORMAT_OUTPUT_1_MAXPACKETSIZE;
|
|
cfgDesc_Audio2.Audio_Out_ClassStreamInterface.bNrChannels = NUM_USB_CHAN_OUT_FS;
|
|
#endif
|
|
#if (OUTPUT_FORMAT_COUNT > 1)
|
|
cfgDesc_Audio2.Audio_Out_Format_2.bSubslotSize = FS_STREAM_FORMAT_OUTPUT_2_SUBSLOT_BYTES;
|
|
cfgDesc_Audio2.Audio_Out_Format_2.bBitResolution = FS_STREAM_FORMAT_OUTPUT_2_RESOLUTION_BITS;
|
|
cfgDesc_Audio2.Audio_Out_Endpoint_2.wMaxPacketSize = FS_STREAM_FORMAT_OUTPUT_2_MAXPACKETSIZE;
|
|
cfgDesc_Audio2.Audio_Out_ClassStreamInterface_2.bNrChannels = NUM_USB_CHAN_OUT_FS;
|
|
#endif
|
|
|
|
#if (OUTPUT_FORMAT_COUNT > 2)
|
|
cfgDesc_Audio2.Audio_Out_Format_3.bSubslotSize = FS_STREAM_FORMAT_OUTPUT_3_SUBSLOT_BYTES;
|
|
cfgDesc_Audio2.Audio_Out_Format_3.bBitResolution = FS_STREAM_FORMAT_OUTPUT_3_RESOLUTION_BITS;
|
|
cfgDesc_Audio2.Audio_Out_Endpoint_3.wMaxPacketSize = FS_STREAM_FORMAT_OUTPUT_3_MAXPACKETSIZE;
|
|
cfgDesc_Audio2.Audio_Out_ClassStreamInterface_3.bNrChannels = NUM_USB_CHAN_OUT_FS;
|
|
#endif
|
|
#endif
|
|
#if (NUM_USB_CHAN_IN > 0)
|
|
cfgDesc_Audio2.Audio_CS_Control_Int.Audio_In_InputTerminal.bNrChannels = NUM_USB_CHAN_IN_FS;
|
|
cfgDesc_Audio2.Audio_In_Format.bSubslotSize = FS_STREAM_FORMAT_INPUT_1_SUBSLOT_BYTES;
|
|
cfgDesc_Audio2.Audio_In_Format.bBitResolution = FS_STREAM_FORMAT_INPUT_1_RESOLUTION_BITS;
|
|
cfgDesc_Audio2.Audio_In_Endpoint.wMaxPacketSize = FS_STREAM_FORMAT_INPUT_1_MAXPACKETSIZE;
|
|
cfgDesc_Audio2.Audio_In_ClassStreamInterface.bNrChannels = NUM_USB_CHAN_IN_FS;
|
|
#endif
|
|
}
|
|
|
|
result = USB_StandardRequests(ep0_out, ep0_in,
|
|
(unsigned char*)&devDesc_Audio2, sizeof(devDesc_Audio2),
|
|
(unsigned char*)&cfgDesc_Audio2, sizeof(cfgDesc_Audio2),
|
|
null, 0,
|
|
null, 0,
|
|
#ifdef __XC__
|
|
g_strTable, sizeof(g_strTable), sp, c_usb_test, g_curUsbSpeed);
|
|
#else
|
|
(char**)&g_strTable, sizeof(g_strTable)/sizeof(char *), &sp, c_usb_test, g_curUsbSpeed);
|
|
#endif
|
|
#elif (AUDIO_CLASS == 1)
|
|
/* Return Audio 1.0 Descriptors in FS, should never be in HS! */
|
|
result = USB_StandardRequests(ep0_out, ep0_in,
|
|
null, 0,
|
|
null, 0,
|
|
(unsigned char*)&devDesc_Audio1, sizeof(devDesc_Audio1),
|
|
cfgDesc_Audio1, sizeof(cfgDesc_Audio1),
|
|
(char**)&g_strTable, sizeof(g_strTable)/sizeof(char *), &sp, c_usb_test, g_curUsbSpeed);
|
|
#else
|
|
/* Return Audio 2.0 Descriptors with Null device as fallback */
|
|
result = USB_StandardRequests(ep0_out, ep0_in,
|
|
(unsigned char*)&devDesc_Audio2, sizeof(devDesc_Audio2),
|
|
(unsigned char*)&cfgDesc_Audio2, sizeof(cfgDesc_Audio2),
|
|
devDesc_Null, sizeof(devDesc_Null),
|
|
cfgDesc_Null, sizeof(cfgDesc_Null),
|
|
(char**)&g_strTable, sizeof(g_strTable)/sizeof(char *), &sp, c_usb_test, g_curUsbSpeed);
|
|
#endif
|
|
#ifdef DFU
|
|
}
|
|
else
|
|
{
|
|
/* Running in DFU mode - always return same descs for DFU whether HS or FS */
|
|
result = USB_StandardRequests(ep0_out, ep0_in,
|
|
DFUdevDesc, sizeof(DFUdevDesc),
|
|
DFUcfgDesc, sizeof(DFUcfgDesc),
|
|
null, 0, /* Used same descriptors for full and high-speed */
|
|
null, 0,
|
|
(char**)&g_strTable, sizeof(g_strTable)/sizeof(char *), &sp, c_usb_test, g_curUsbSpeed);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (result == XUD_RES_RST)
|
|
{
|
|
#ifdef __XC__
|
|
g_curUsbSpeed = XUD_ResetEndpoint(ep0_out, ep0_in);
|
|
#else
|
|
g_curUsbSpeed = XUD_ResetEndpoint(ep0_out, &ep0_in);
|
|
#endif
|
|
g_currentConfig = 0;
|
|
|
|
#ifdef DFU
|
|
if (DFUReportResetState(null))
|
|
{
|
|
if (!DFU_mode_active)
|
|
{
|
|
DFU_mode_active = 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (DFU_mode_active)
|
|
{
|
|
DFU_mode_active = 0;
|
|
|
|
/* Send reboot command */
|
|
DFUDelay(5000000);
|
|
device_reboot(c_audioControl);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
}
|