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crashtest-r0ket/firmware/usbcdc/usbcore.c

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moved usbcdc to own lib
2011-07-10 16:02:07 +00:00
/*----------------------------------------------------------------------------
* U S B - K e r n e l
*----------------------------------------------------------------------------
* Name: usbcore.c
* Purpose: USB Core Module
* Version: V1.20
*----------------------------------------------------------------------------
* This software is supplied "AS IS" without any warranties, express,
* implied or statutory, including but not limited to the implied
* warranties of fitness for purpose, satisfactory quality and
* noninfringement. Keil extends you a royalty-free right to reproduce
* and distribute executable files created using this software for use
* on NXP Semiconductors LPC microcontroller devices only. Nothing else
* gives you the right to use this software.
*
* Copyright (c) 2009 Keil - An ARM Company. All rights reserved.
*----------------------------------------------------------------------------
* History:
* V1.20 Added vendor specific requests
* Changed string descriptor handling
* Reworked Endpoint0
* V1.00 Initial Version
*----------------------------------------------------------------------------*/
#include "projectconfig.h"
#include "usb.h"
#include "usbcfg.h"
#include "usbhw.h"
#include "usbcore.h"
#include "usbdesc.h"
#include "usbuser.h"
#if (USB_CLASS)
#if (USB_AUDIO)
#include "audio.h"
#include "adcuser.h"
#endif
#if (USB_HID)
#include "hid.h"
#include "hiduser.h"
#endif
#if (USB_MSC)
#include "msc.h"
#include "mscuser.h"
extern MSC_CSW CSW;
#endif
#if (USB_CDC)
#include "cdc.h"
#include "cdcuser.h"
#endif
#endif
#if (USB_VENDOR)
#include "vendor.h"
#endif
uint16_t USB_DeviceStatus;
uint8_t USB_DeviceAddress;
volatile uint8_t USB_Configuration;
uint32_t USB_EndPointMask;
uint32_t USB_EndPointHalt;
uint32_t USB_EndPointStall; /* EP must stay stalled */
uint8_t USB_NumInterfaces;
uint8_t USB_AltSetting[USB_IF_NUM];
uint8_t EP0Buf[USB_MAX_PACKET0];
USB_EP_DATA EP0Data;
USB_SETUP_PACKET SetupPacket;
/*
* Reset USB Core
* Parameters: None
* Return Value: None
*/
void USB_ResetCore (void) {
USB_DeviceStatus = USB_POWER;
USB_DeviceAddress = 0;
USB_Configuration = 0;
USB_EndPointMask = 0x00010001;
USB_EndPointHalt = 0x00000000;
USB_EndPointStall = 0x00000000;
}
/*
* USB Request - Setup Stage
* Parameters: None (global SetupPacket)
* Return Value: None
*/
void USB_SetupStage (void) {
USB_ReadEP(0x00, (uint8_t *)&SetupPacket);
}
/*
* USB Request - Data In Stage
* Parameters: None (global EP0Data)
* Return Value: None
*/
void USB_DataInStage (void) {
uint32_t cnt;
if (EP0Data.Count > USB_MAX_PACKET0) {
cnt = USB_MAX_PACKET0;
} else {
cnt = EP0Data.Count;
}
cnt = USB_WriteEP(0x80, EP0Data.pData, cnt);
EP0Data.pData += cnt;
EP0Data.Count -= cnt;
}
/*
* USB Request - Data Out Stage
* Parameters: None (global EP0Data)
* Return Value: None
*/
void USB_DataOutStage (void) {
uint32_t cnt;
cnt = USB_ReadEP(0x00, EP0Data.pData);
EP0Data.pData += cnt;
EP0Data.Count -= cnt;
}
/*
* USB Request - Status In Stage
* Parameters: None
* Return Value: None
*/
void USB_StatusInStage (void) {
USB_WriteEP(0x80, NULL, 0);
}
/*
* USB Request - Status Out Stage
* Parameters: None
* Return Value: None
*/
void USB_StatusOutStage (void) {
USB_ReadEP(0x00, EP0Buf);
}
/*
* Get Status USB Request
* Parameters: None (global SetupPacket)
* Return Value: TRUE - Success, FALSE - Error
*/
static inline uint32_t USB_ReqGetStatus (void) {
uint32_t n, m;
uint16_t* ep0 = (uint16_t __attribute__((packed)) *)EP0Buf;
switch (SetupPacket.bmRequestType.BM.Recipient) {
case REQUEST_TO_DEVICE:
EP0Data.pData = (uint8_t *)&USB_DeviceStatus;
break;
case REQUEST_TO_INTERFACE:
if ((USB_Configuration != 0) && (SetupPacket.wIndex.WB.L < USB_NumInterfaces)) {
*ep0 = 0;
EP0Data.pData = EP0Buf;
} else {
return (FALSE);
}
break;
case REQUEST_TO_ENDPOINT:
n = SetupPacket.wIndex.WB.L & 0x8F;
m = (n & 0x80) ? ((1 << 16) << (n & 0x0F)) : (1 << n);
if (((USB_Configuration != 0) || ((n & 0x0F) == 0)) && (USB_EndPointMask & m)) {
*ep0 = (USB_EndPointHalt & m) ? 1 : 0;
EP0Data.pData = EP0Buf;
} else {
return (FALSE);
}
break;
default:
return (FALSE);
}
return (TRUE);
}
/*
* Set/Clear Feature USB Request
* Parameters: sc: 0 - Clear, 1 - Set
* (global SetupPacket)
* Return Value: TRUE - Success, FALSE - Error
*/
static inline uint32_t USB_ReqSetClrFeature (uint32_t sc) {
uint32_t n, m;
switch (SetupPacket.bmRequestType.BM.Recipient) {
case REQUEST_TO_DEVICE:
if (SetupPacket.wValue.W == USB_FEATURE_REMOTE_WAKEUP) {
if (sc) {
USB_WakeUpCfg(TRUE);
USB_DeviceStatus |= USB_GETSTATUS_REMOTE_WAKEUP;
} else {
USB_WakeUpCfg(FALSE);
USB_DeviceStatus &= ~USB_GETSTATUS_REMOTE_WAKEUP;
}
} else {
return (FALSE);
}
break;
case REQUEST_TO_INTERFACE:
return (FALSE);
case REQUEST_TO_ENDPOINT:
n = SetupPacket.wIndex.WB.L & 0x8F;
m = (n & 0x80) ? ((1 << 16) << (n & 0x0F)) : (1 << n);
if ((USB_Configuration != 0) && ((n & 0x0F) != 0) && (USB_EndPointMask & m)) {
if (SetupPacket.wValue.W == USB_FEATURE_ENDPOINT_STALL) {
if (sc) {
USB_SetStallEP(n);
USB_EndPointHalt |= m;
} else {
if ((USB_EndPointStall & m) != 0) {
return (TRUE);
}
USB_ClrStallEP(n);
#if (USB_MSC)
if ((n == MSC_EP_IN) && ((USB_EndPointHalt & m) != 0)) {
/* Compliance Test: rewrite CSW after unstall */
if (CSW.dSignature == MSC_CSW_Signature) {
USB_WriteEP(MSC_EP_IN, (uint8_t *)&CSW, sizeof(CSW));
}
}
#endif
USB_EndPointHalt &= ~m;
}
} else {
return (FALSE);
}
} else {
return (FALSE);
}
break;
default:
return (FALSE);
}
return (TRUE);
}
/*
* Set Address USB Request
* Parameters: None (global SetupPacket)
* Return Value: TRUE - Success, FALSE - Error
*/
static inline uint32_t USB_ReqSetAddress (void) {
switch (SetupPacket.bmRequestType.BM.Recipient) {
case REQUEST_TO_DEVICE:
USB_DeviceAddress = 0x80 | SetupPacket.wValue.WB.L;
break;
default:
return (FALSE);
}
return (TRUE);
}
/*
* Get Descriptor USB Request
* Parameters: None (global SetupPacket)
* Return Value: TRUE - Success, FALSE - Error
*/
static inline uint32_t USB_ReqGetDescriptor (void) {
uint8_t *pD;
uint32_t len, n;
switch (SetupPacket.bmRequestType.BM.Recipient) {
case REQUEST_TO_DEVICE:
switch (SetupPacket.wValue.WB.H) {
case USB_DEVICE_DESCRIPTOR_TYPE:
EP0Data.pData = (uint8_t *)USB_DeviceDescriptor;
len = USB_DEVICE_DESC_SIZE;
break;
case USB_CONFIGURATION_DESCRIPTOR_TYPE:
pD = (uint8_t *)USB_ConfigDescriptor;
for (n = 0; n != SetupPacket.wValue.WB.L; n++) {
if (((USB_CONFIGURATION_DESCRIPTOR *)pD)->bLength != 0) {
pD += ((USB_CONFIGURATION_DESCRIPTOR *)pD)->wTotalLength;
}
}
if (((USB_CONFIGURATION_DESCRIPTOR *)pD)->bLength == 0) {
return (FALSE);
}
EP0Data.pData = pD;
len = ((USB_CONFIGURATION_DESCRIPTOR *)pD)->wTotalLength;
break;
case USB_STRING_DESCRIPTOR_TYPE:
pD = (uint8_t *)USB_StringDescriptor;
for (n = 0; n != SetupPacket.wValue.WB.L; n++) {
if (((USB_STRING_DESCRIPTOR *)pD)->bLength != 0) {
pD += ((USB_STRING_DESCRIPTOR *)pD)->bLength;
}
}
if (((USB_STRING_DESCRIPTOR *)pD)->bLength == 0) {
return (FALSE);
}
EP0Data.pData = pD;
len = ((USB_STRING_DESCRIPTOR *)EP0Data.pData)->bLength;
break;
default:
return (FALSE);
}
break;
case REQUEST_TO_INTERFACE:
switch (SetupPacket.wValue.WB.H) {
#if USB_HID
case HID_HID_DESCRIPTOR_TYPE:
if (SetupPacket.wIndex.WB.L != USB_HID_IF_NUM) {
return (FALSE); /* Only Single HID Interface is supported */
}
EP0Data.pData = (uint8_t *)USB_ConfigDescriptor + HID_DESC_OFFSET;
len = HID_DESC_SIZE;
break;
case HID_REPORT_DESCRIPTOR_TYPE:
if (SetupPacket.wIndex.WB.L != USB_HID_IF_NUM) {
return (FALSE); /* Only Single HID Interface is supported */
}
EP0Data.pData = (uint8_t *)HID_ReportDescriptor;
len = HID_ReportDescSize;
break;
case HID_PHYSICAL_DESCRIPTOR_TYPE:
return (FALSE); /* HID Physical Descriptor is not supported */
#endif
default:
return (FALSE);
}
break;
default:
return (FALSE);
}
if (EP0Data.Count > len) {
EP0Data.Count = len;
}
return (TRUE);
}
/*
* Get Configuration USB Request
* Parameters: None (global SetupPacket)
* Return Value: TRUE - Success, FALSE - Error
*/
static inline uint32_t USB_ReqGetConfiguration (void) {
switch (SetupPacket.bmRequestType.BM.Recipient) {
case REQUEST_TO_DEVICE:
// Added cast to avoid warnings due to USB_Configuration being volatile (KTownsend)
EP0Data.pData = (uint8_t *)&USB_Configuration;
break;
default:
return (FALSE);
}
return (TRUE);
}
/*
* Set Configuration USB Request
* Parameters: None (global SetupPacket)
* Return Value: TRUE - Success, FALSE - Error
*/
static inline uint32_t USB_ReqSetConfiguration (void) {
USB_COMMON_DESCRIPTOR *pD;
uint32_t alt = 0;
uint32_t n, m;
switch (SetupPacket.bmRequestType.BM.Recipient) {
case REQUEST_TO_DEVICE:
if (SetupPacket.wValue.WB.L) {
pD = (USB_COMMON_DESCRIPTOR *)USB_ConfigDescriptor;
while (pD->bLength) {
switch (pD->bDescriptorType) {
case USB_CONFIGURATION_DESCRIPTOR_TYPE:
if (((USB_CONFIGURATION_DESCRIPTOR *)pD)->bConfigurationValue == SetupPacket.wValue.WB.L) {
USB_Configuration = SetupPacket.wValue.WB.L;
USB_NumInterfaces = ((USB_CONFIGURATION_DESCRIPTOR *)pD)->bNumInterfaces;
for (n = 0; n < USB_IF_NUM; n++) {
USB_AltSetting[n] = 0;
}
for (n = 1; n < 16; n++) {
if (USB_EndPointMask & (1 << n)) {
USB_DisableEP(n);
}
if (USB_EndPointMask & ((1 << 16) << n)) {
USB_DisableEP(n | 0x80);
}
}
USB_EndPointMask = 0x00010001;
USB_EndPointHalt = 0x00000000;
USB_EndPointStall= 0x00000000;
USB_Configure(TRUE);
if (((USB_CONFIGURATION_DESCRIPTOR *)pD)->bmAttributes & USB_CONFIG_POWERED_MASK) {
USB_DeviceStatus |= USB_GETSTATUS_SELF_POWERED;
} else {
USB_DeviceStatus &= ~USB_GETSTATUS_SELF_POWERED;
}
} else {
UsbAddPtr((void **)&pD, ((USB_CONFIGURATION_DESCRIPTOR *)pD)->wTotalLength);
continue;
}
break;
case USB_INTERFACE_DESCRIPTOR_TYPE:
alt = ((USB_INTERFACE_DESCRIPTOR *)pD)->bAlternateSetting;
break;
case USB_ENDPOINT_DESCRIPTOR_TYPE:
if (alt == 0) {
n = ((USB_ENDPOINT_DESCRIPTOR *)pD)->bEndpointAddress & 0x8F;
m = (n & 0x80) ? ((1 << 16) << (n & 0x0F)) : (1 << n);
USB_EndPointMask |= m;
USB_ConfigEP((USB_ENDPOINT_DESCRIPTOR *)pD);
USB_EnableEP(n);
USB_ResetEP(n);
}
break;
}
UsbAddPtr((void **)&pD, pD->bLength);
}
}
else {
USB_Configuration = 0;
for (n = 1; n < 16; n++) {
if (USB_EndPointMask & (1 << n)) {
USB_DisableEP(n);
}
if (USB_EndPointMask & ((1 << 16) << n)) {
USB_DisableEP(n | 0x80);
}
}
USB_EndPointMask = 0x00010001;
USB_EndPointHalt = 0x00000000;
USB_EndPointStall = 0x00000000;
USB_Configure(FALSE);
}
if (USB_Configuration != SetupPacket.wValue.WB.L) {
return (FALSE);
}
break;
default:
return (FALSE);
}
return (TRUE);
}
/*
* Get Interface USB Request
* Parameters: None (global SetupPacket)
* Return Value: TRUE - Success, FALSE - Error
*/
static inline uint32_t USB_ReqGetInterface (void) {
switch (SetupPacket.bmRequestType.BM.Recipient) {
case REQUEST_TO_INTERFACE:
if ((USB_Configuration != 0) && (SetupPacket.wIndex.WB.L < USB_NumInterfaces)) {
EP0Data.pData = USB_AltSetting + SetupPacket.wIndex.WB.L;
} else {
return (FALSE);
}
break;
default:
return (FALSE);
}
return (TRUE);
}
/*
* Set Interface USB Request
* Parameters: None (global SetupPacket)
* Return Value: TRUE - Success, FALSE - Error
*/
static inline uint32_t USB_ReqSetInterface (void) {
USB_COMMON_DESCRIPTOR *pD;
uint32_t ifn = 0, alt = 0, old = 0, msk = 0;
uint32_t n, m;
uint32_t set;
switch (SetupPacket.bmRequestType.BM.Recipient) {
case REQUEST_TO_INTERFACE:
if (USB_Configuration == 0) return (FALSE);
set = FALSE;
pD = (USB_COMMON_DESCRIPTOR *)USB_ConfigDescriptor;
while (pD->bLength) {
switch (pD->bDescriptorType) {
case USB_CONFIGURATION_DESCRIPTOR_TYPE:
if (((USB_CONFIGURATION_DESCRIPTOR *)pD)->bConfigurationValue != USB_Configuration) {
UsbAddPtr((void **)&pD, ((USB_CONFIGURATION_DESCRIPTOR *)pD)->wTotalLength);
continue;
}
break;
case USB_INTERFACE_DESCRIPTOR_TYPE:
ifn = ((USB_INTERFACE_DESCRIPTOR *)pD)->bInterfaceNumber;
alt = ((USB_INTERFACE_DESCRIPTOR *)pD)->bAlternateSetting;
msk = 0;
if ((ifn == SetupPacket.wIndex.WB.L) && (alt == SetupPacket.wValue.WB.L)) {
set = TRUE;
old = USB_AltSetting[ifn];
USB_AltSetting[ifn] = (uint8_t)alt;
}
break;
case USB_ENDPOINT_DESCRIPTOR_TYPE:
if (ifn == SetupPacket.wIndex.WB.L) {
n = ((USB_ENDPOINT_DESCRIPTOR *)pD)->bEndpointAddress & 0x8F;
m = (n & 0x80) ? ((1 << 16) << (n & 0x0F)) : (1 << n);
if (alt == SetupPacket.wValue.WB.L) {
USB_EndPointMask |= m;
USB_EndPointHalt &= ~m;
USB_ConfigEP((USB_ENDPOINT_DESCRIPTOR *)pD);
USB_EnableEP(n);
USB_ResetEP(n);
msk |= m;
}
else if ((alt == old) && ((msk & m) == 0)) {
USB_EndPointMask &= ~m;
USB_EndPointHalt &= ~m;
USB_DisableEP(n);
}
}
break;
}
UsbAddPtr((void **)&pD, pD->bLength);
}
break;
default:
return (FALSE);
}
return (set);
}
/*
* USB Endpoint 0 Event Callback
* Parameters: event
* Return Value: none
*/
void USB_EndPoint0 (uint32_t event) {
switch (event) {
case USB_EVT_SETUP:
USB_SetupStage();
USB_DirCtrlEP(SetupPacket.bmRequestType.BM.Dir);
EP0Data.Count = SetupPacket.wLength; /* Number of bytes to transfer */
switch (SetupPacket.bmRequestType.BM.Type) {
case REQUEST_STANDARD:
switch (SetupPacket.bRequest) {
case USB_REQUEST_GET_STATUS:
if (!USB_ReqGetStatus()) {
goto stall_i;
}
USB_DataInStage();
break;
case USB_REQUEST_CLEAR_FEATURE:
if (!USB_ReqSetClrFeature(0)) {
goto stall_i;
}
USB_StatusInStage();
#if USB_FEATURE_EVENT
USB_Feature_Event();
#endif
break;
case USB_REQUEST_SET_FEATURE:
if (!USB_ReqSetClrFeature(1)) {
goto stall_i;
}
USB_StatusInStage();
#if USB_FEATURE_EVENT
USB_Feature_Event();
#endif
break;
case USB_REQUEST_SET_ADDRESS:
if (!USB_ReqSetAddress()) {
goto stall_i;
}
USB_StatusInStage();
break;
case USB_REQUEST_GET_DESCRIPTOR:
if (!USB_ReqGetDescriptor()) {
goto stall_i;
}
USB_DataInStage();
break;
case USB_REQUEST_SET_DESCRIPTOR:
/*stall_o:*/ USB_SetStallEP(0x00); /* not supported */
EP0Data.Count = 0;
break;
case USB_REQUEST_GET_CONFIGURATION:
if (!USB_ReqGetConfiguration()) {
goto stall_i;
}
USB_DataInStage();
break;
case USB_REQUEST_SET_CONFIGURATION:
if (!USB_ReqSetConfiguration()) {
goto stall_i;
}
USB_StatusInStage();
#if USB_CONFIGURE_EVENT
USB_Configure_Event();
#endif
break;
case USB_REQUEST_GET_INTERFACE:
if (!USB_ReqGetInterface()) {
goto stall_i;
}
USB_DataInStage();
break;
case USB_REQUEST_SET_INTERFACE:
if (!USB_ReqSetInterface()) {
goto stall_i;
}
USB_StatusInStage();
#if USB_INTERFACE_EVENT
USB_Interface_Event();
#endif
break;
default:
goto stall_i;
}
break; /* end case REQUEST_STANDARD */
#if USB_CLASS
case REQUEST_CLASS:
switch (SetupPacket.bmRequestType.BM.Recipient) {
case REQUEST_TO_DEVICE:
goto stall_i; /* not supported */
case REQUEST_TO_INTERFACE:
#if USB_HID
if (SetupPacket.wIndex.WB.L == USB_HID_IF_NUM) { /* IF number correct? */
switch (SetupPacket.bRequest) {
case HID_REQUEST_GET_REPORT:
if (HID_GetReport()) {
EP0Data.pData = EP0Buf; /* point to data to be sent */
USB_DataInStage(); /* send requested data */
goto setup_class_ok;
}
break;
case HID_REQUEST_SET_REPORT:
EP0Data.pData = EP0Buf; /* data to be received */
goto setup_class_ok;
case HID_REQUEST_GET_IDLE:
if (HID_GetIdle()) {
EP0Data.pData = EP0Buf; /* point to data to be sent */
USB_DataInStage(); /* send requested data */
goto setup_class_ok;
}
break;
case HID_REQUEST_SET_IDLE:
if (HID_SetIdle()) {
USB_StatusInStage(); /* send Acknowledge */
goto setup_class_ok;
}
break;
case HID_REQUEST_GET_PROTOCOL:
if (HID_GetProtocol()) {
EP0Data.pData = EP0Buf; /* point to data to be sent */
USB_DataInStage(); /* send requested data */
goto setup_class_ok;
}
break;
case HID_REQUEST_SET_PROTOCOL:
if (HID_SetProtocol()) {
USB_StatusInStage(); /* send Acknowledge */
goto setup_class_ok;
}
break;
}
}
#endif /* USB_HID */
#if USB_MSC
if (SetupPacket.wIndex.WB.L == USB_MSC_IF_NUM) { /* IF number correct? */
switch (SetupPacket.bRequest) {
case MSC_REQUEST_RESET:
if ((SetupPacket.wValue.W == 0) && /* RESET with invalid parameters -> STALL */
(SetupPacket.wLength == 0)) {
if (MSC_Reset()) {
USB_StatusInStage();
goto setup_class_ok;
}
}
break;
case MSC_REQUEST_GET_MAX_LUN:
if ((SetupPacket.wValue.W == 0) && /* GET_MAX_LUN with invalid parameters -> STALL */
(SetupPacket.wLength == 1)) {
if (MSC_GetMaxLUN()) {
EP0Data.pData = EP0Buf;
USB_DataInStage();
goto setup_class_ok;
}
}
break;
}
}
#endif /* USB_MSC */
#if USB_AUDIO
if ((SetupPacket.wIndex.WB.L == USB_ADC_CIF_NUM) || /* IF number correct? */
(SetupPacket.wIndex.WB.L == USB_ADC_SIF1_NUM) ||
(SetupPacket.wIndex.WB.L == USB_ADC_SIF2_NUM)) {
switch (SetupPacket.bRequest) {
case AUDIO_REQUEST_GET_CUR:
case AUDIO_REQUEST_GET_MIN:
case AUDIO_REQUEST_GET_MAX:
case AUDIO_REQUEST_GET_RES:
if (ADC_IF_GetRequest()) {
EP0Data.pData = EP0Buf; /* point to data to be sent */
USB_DataInStage(); /* send requested data */
goto setup_class_ok;
}
break;
case AUDIO_REQUEST_SET_CUR:
// case AUDIO_REQUEST_SET_MIN:
// case AUDIO_REQUEST_SET_MAX:
// case AUDIO_REQUEST_SET_RES:
EP0Data.pData = EP0Buf; /* data to be received */
goto setup_class_ok;
}
}
#endif /* USB_AUDIO */
#if USB_CDC
if ((SetupPacket.wIndex.WB.L == USB_CDC_CIF_NUM) || /* IF number correct? */
(SetupPacket.wIndex.WB.L == USB_CDC_DIF_NUM)) {
switch (SetupPacket.bRequest) {
case CDC_SEND_ENCAPSULATED_COMMAND:
EP0Data.pData = EP0Buf; /* data to be received, see USB_EVT_OUT */
goto setup_class_ok;
case CDC_GET_ENCAPSULATED_RESPONSE:
if (CDC_GetEncapsulatedResponse()) {
EP0Data.pData = EP0Buf; /* point to data to be sent */
USB_DataInStage(); /* send requested data */
goto setup_class_ok;
}
break;
case CDC_SET_COMM_FEATURE:
EP0Data.pData = EP0Buf; /* data to be received, see USB_EVT_OUT */
goto setup_class_ok;
case CDC_GET_COMM_FEATURE:
if (CDC_GetCommFeature(SetupPacket.wValue.W)) {
EP0Data.pData = EP0Buf; /* point to data to be sent */
USB_DataInStage(); /* send requested data */
goto setup_class_ok;
}
break;
case CDC_CLEAR_COMM_FEATURE:
if (CDC_ClearCommFeature(SetupPacket.wValue.W)) {
USB_StatusInStage(); /* send Acknowledge */
goto setup_class_ok;
}
break;
case CDC_SET_LINE_CODING:
EP0Data.pData = EP0Buf; /* data to be received, see USB_EVT_OUT */
goto setup_class_ok;
case CDC_GET_LINE_CODING:
if (CDC_GetLineCoding()) {
EP0Data.pData = EP0Buf; /* point to data to be sent */
USB_DataInStage(); /* send requested data */
goto setup_class_ok;
}
break;
case CDC_SET_CONTROL_LINE_STATE:
if (CDC_SetControlLineState(SetupPacket.wValue.W)) {
USB_StatusInStage(); /* send Acknowledge */
goto setup_class_ok;
}
break;
case CDC_SEND_BREAK:
if (CDC_SendBreak(SetupPacket.wValue.W)) {
USB_StatusInStage(); /* send Acknowledge */
goto setup_class_ok;
}
break;
}
}
#endif /* USB_CDC */
goto stall_i; /* not supported */
/* end case REQUEST_TO_INTERFACE */
case REQUEST_TO_ENDPOINT:
#if USB_AUDIO
switch (SetupPacket.bRequest) {
case AUDIO_REQUEST_GET_CUR:
case AUDIO_REQUEST_GET_MIN:
case AUDIO_REQUEST_GET_MAX:
case AUDIO_REQUEST_GET_RES:
if (ADC_EP_GetRequest()) {
EP0Data.pData = EP0Buf; /* point to data to be sent */
USB_DataInStage(); /* send requested data */
goto setup_class_ok;
}
break;
case AUDIO_REQUEST_SET_CUR:
// case AUDIO_REQUEST_SET_MIN:
// case AUDIO_REQUEST_SET_MAX:
// case AUDIO_REQUEST_SET_RES:
EP0Data.pData = EP0Buf; /* data to be received */
goto setup_class_ok;
}
#endif /* USB_AUDIO */
goto stall_i;
/* end case REQUEST_TO_ENDPOINT */
default:
goto stall_i;
}
setup_class_ok: /* request finished successfully */
break; /* end case REQUEST_CLASS */
#endif /* USB_CLASS */
#if USB_VENDOR
case REQUEST_VENDOR:
switch (SetupPacket.bmRequestType.BM.Recipient) {
case REQUEST_TO_DEVICE:
if (!USB_ReqVendorDev(TRUE)) {
goto stall_i; /* not supported */
}
break;
case REQUEST_TO_INTERFACE:
if (!USB_ReqVendorIF(TRUE)) {
goto stall_i; /* not supported */
}
break;
case REQUEST_TO_ENDPOINT:
if (!USB_ReqVendorEP(TRUE)) {
goto stall_i; /* not supported */
}
break;
default:
goto stall_i;
}
if (SetupPacket.wLength) {
if (SetupPacket.bmRequestType.BM.Dir == REQUEST_DEVICE_TO_HOST) {
USB_DataInStage();
}
} else {
USB_StatusInStage();
}
break; /* end case REQUEST_VENDOR */
#endif /* USB_VENDOR */
default:
stall_i: USB_SetStallEP(0x80);
EP0Data.Count = 0;
break;
}
break; /* end case USB_EVT_SETUP */
case USB_EVT_OUT:
if (SetupPacket.bmRequestType.BM.Dir == REQUEST_HOST_TO_DEVICE) {
if (EP0Data.Count) { /* still data to receive ? */
USB_DataOutStage(); /* receive data */
if (EP0Data.Count == 0) { /* data complete ? */
switch (SetupPacket.bmRequestType.BM.Type) {
case REQUEST_STANDARD:
goto stall_i; /* not supported */
#if (USB_CLASS)
case REQUEST_CLASS:
switch (SetupPacket.bmRequestType.BM.Recipient) {
case REQUEST_TO_DEVICE:
goto stall_i; /* not supported */
case REQUEST_TO_INTERFACE:
#if USB_HID
if (SetupPacket.wIndex.WB.L == USB_HID_IF_NUM) { /* IF number correct? */
switch (SetupPacket.bRequest) {
case HID_REQUEST_SET_REPORT:
if (HID_SetReport()) {
USB_StatusInStage(); /* send Acknowledge */
goto out_class_ok;
}
break;
}
}
#endif /* USB_HID */
#if USB_AUDIO
if ((SetupPacket.wIndex.WB.L == USB_ADC_CIF_NUM) || /* IF number correct? */
(SetupPacket.wIndex.WB.L == USB_ADC_SIF1_NUM) ||
(SetupPacket.wIndex.WB.L == USB_ADC_SIF2_NUM)) {
switch (SetupPacket.bRequest) {
case AUDIO_REQUEST_SET_CUR:
// case AUDIO_REQUEST_SET_MIN:
// case AUDIO_REQUEST_SET_MAX:
// case AUDIO_REQUEST_SET_RES:
if (ADC_IF_SetRequest()) {
USB_StatusInStage(); /* send Acknowledge */
goto out_class_ok;
}
break;
}
}
#endif /* USB_AUDIO */
#if USB_CDC
if ((SetupPacket.wIndex.WB.L == USB_CDC_CIF_NUM) || /* IF number correct? */
(SetupPacket.wIndex.WB.L == USB_CDC_DIF_NUM)) {
switch (SetupPacket.bRequest) {
case CDC_SEND_ENCAPSULATED_COMMAND:
if (CDC_SendEncapsulatedCommand()) {
USB_StatusInStage(); /* send Acknowledge */
goto out_class_ok;
}
break;
case CDC_SET_COMM_FEATURE:
if (CDC_SetCommFeature(SetupPacket.wValue.W)) {
USB_StatusInStage(); /* send Acknowledge */
goto out_class_ok;
}
break;
case CDC_SET_LINE_CODING:
if (CDC_SetLineCoding()) {
USB_StatusInStage(); /* send Acknowledge */
goto out_class_ok;
}
break;
}
}
#endif /* USB_CDC */
goto stall_i;
/* end case REQUEST_TO_INTERFACE */
case REQUEST_TO_ENDPOINT:
#if USB_AUDIO
switch (SetupPacket.bRequest) {
case AUDIO_REQUEST_SET_CUR:
// case AUDIO_REQUEST_SET_MIN:
// case AUDIO_REQUEST_SET_MAX:
// case AUDIO_REQUEST_SET_RES:
if (ADC_EP_SetRequest()) {
USB_StatusInStage(); /* send Acknowledge */
goto out_class_ok;
}
break;
}
#endif /* USB_AUDIO */
goto stall_i;
/* end case REQUEST_TO_ENDPOINT */
default:
goto stall_i;
}
out_class_ok: /* request finished successfully */
break; /* end case REQUEST_CLASS */
#endif /* USB_CLASS */
#if USB_VENDOR
case REQUEST_VENDOR:
switch (SetupPacket.bmRequestType.BM.Recipient) {
case REQUEST_TO_DEVICE:
if (!USB_ReqVendorDev(FALSE)) {
goto stall_i; /* not supported */
}
break;
case REQUEST_TO_INTERFACE:
if (!USB_ReqVendorIF(FALSE)) {
goto stall_i; /* not supported */
}
break;
case REQUEST_TO_ENDPOINT:
if (!USB_ReqVendorEP(FALSE)) {
goto stall_i; /* not supported */
}
break;
default:
goto stall_i;
}
USB_StatusInStage();
break; /* end case REQUEST_VENDOR */
#endif /* USB_VENDOR */
default:
goto stall_i;
}
}
}
} else {
USB_StatusOutStage(); /* receive Acknowledge */
}
break; /* end case USB_EVT_OUT */
case USB_EVT_IN :
if (SetupPacket.bmRequestType.BM.Dir == REQUEST_DEVICE_TO_HOST) {
USB_DataInStage(); /* send data */
} else {
if (USB_DeviceAddress & 0x80) {
USB_DeviceAddress &= 0x7F;
USB_SetAddress(USB_DeviceAddress);
}
}
break; /* end case USB_EVT_IN */
case USB_EVT_OUT_STALL:
USB_ClrStallEP(0x00);
break;
case USB_EVT_IN_STALL:
USB_ClrStallEP(0x80);
break;
}
}