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/* insert license */
#include "usb_callbacks.h"
#include "usb_lib.h"
#include "usb_descriptors.h"
ONE_DESCRIPTOR Device_Descriptor = {
(uint8*)usbVcomDescriptor_Device,
sizeof(USB_Descriptor_Device)
};
ONE_DESCRIPTOR Config_Descriptor = {
(uint8*)usbVcomDescriptor_Config,
sizeof(USB_Descriptor_Config)
};
ONE_DESCRIPTOR String_Descriptor[3] = {
{(uint8*)usbVcomDescriptor_LangID, USB_DESCRIPTOR_STRING_LEN(1)},
{(uint8*)usbVcomDescriptor_iManufacturer,USB_DESCRIPTOR_STRING_LEN(8)},
{(uint8*)usbVcomDescriptor_iProduct, USB_DESCRIPTOR_STRING_LEN(8)}
};
uint8 last_request = 0;
USB_Line_Coding line_coding = {
bitrate: 115200,
format: 0x00, /* stop bits-1 */
paritytype: 0x00,
datatype: 0x08
};
uint8 vcomBufferTx[VCOM_TX_SIZE];
uint8 vcomBufferRx[VCOM_RX_SIZE];
uint8 countTx = 0;
uint8 countRx = 0;
void vcomDataTxCb(void) {
/* do whatever after data has been sent to host */
countTx = 0;
}
void vcomDataRxCb(void) {
/* do whatever after data has been received from host */
countRx = GetEPRxCount(VCOM_RX_ENDP);
PMAToUserBufferCopy(vcomBufferRx,VCOM_RX_ADDR,countRx);
SetEPRxValid(VCOM_RX_ENDP);
countTx = countRx;
UserToPMABufferCopy(vcomBufferRx,VCOM_TX_ADDR,countTx);
SetEPTxCount(VCOM_TX_ENDP,countTx);
SetEPTxValid(VCOM_TX_ENDP);
}
void vcomManagementCb(void) {
/* unused. This enpoint would callback if we had sent a linestate
changed notification */
}
u8* vcomGetSetLineCoding(uint16 length) {
if (length == 0) {
pInformation->Ctrl_Info.Usb_wLength = sizeof(Line_Coding);
}
return (uint8*)&line_coding;
}
void vcomSetLineSate(uint16 wValue) {
}
void usbInit(void) {
pInformation->Current_Configuration = 0;
usbPowerOn();
_SetISTR(0);
wInterrupt_Mas = ISR_MSK;
_SetCNTR(wInterrupt_Mask);
usbEnbISR();
bDeviceState = UNCONNECTED;
}
void usbReset(void) {
pInformation->Current_Configuration = 0;
/* current feature is current bmAttributes */
pInformation->Current_Feature = (USB_CONFIG_ATTR_BUSPOWERED | USB_CONFIG_ATTR_SELFPOWERED);
_SetBTABLE(USB_BTABLE_ADDRESS);
/* setup control endpoint 0 */
_SetEPType(ENDP0, EP_CONTROL);
_SetEPTxStatus(ENDP0, EP_TX_STALL);
_SetEPRxAddr(ENDP0,VCOM_CTRL_RX_ADDR);
_SetEpTxAddr(ENDP0,VCOM_CTRL_TX_ADDR);
Clear_Status_Out(ENDP0);
SetEPRxCount(ENDP0, pProperty->MaxPacketSize);
SetEPRxValid(ENDP0);
/* setup management endpoint 1 */
SetEPType (VCOM_NOTIFICATION_ENDP, EP_INTERRUPT);
SetEPTxAddr (VCOM_NOTIFICATION_ENDP, VCOM_NOTIFICATION_ADDR);
SetEPTxStatus (VCOM_NOTIFICATION_ENDP, EP_TX_NAK);
SetEPRxStatus (VCOM_NOTIFICATION_ENDP, EP_RX_DIS);
/* setup data endpoint OUT (rx) */
SetEPType (VCOM_RX_ENDP, EP_BULK);
SetEPRxAddr (VCOM_RX_ENDP, VCOM_RX_ADDR);
SetEPRxCount (VCOM_RX_ENDP, VCOM_RX_SIZE);
SetEPTxStatus (VCOM_RX_ENDP, EP_TX_DIS);
SetEPRxStatus (VCOM_RX_ENDP, EP_RX_VALID);
/* setup data endpoint IN (tx) */
SetEPType (VCOM_TX_ENDP, EP_BULK);
SetEPRxAddr (VCOM_TX_ENDP, VCOM_TX_ADDR);
SetEPRxCount (VCOM_TX_ENDP, VCOM_TX_SIZE);
SetEPTxStatus (VCOM_TX_ENDP, EP_TX_NAK);
SetEPRxStatus (VCOM_TX_ENDP, EP_RX_DIS);
bDeviceState = ATTACHED;
SetDeviceAddress(0);
}
void usbStatusIn(void) {
/* adjust the usart line coding
if we wish to couple the CDC line coding
with the real usart port */
}
void usbStatusOut(void) {
}
RESULT usbDataSetup(uint8 request) {
uint8 *(*CopyRoutine)(uint16);
CopyRoutine = NULL;
if (Type_Recipient == (CLASS_REQUEST | INTERFACE_RECIPIENT)) {
switch (request) {
case (GET_LINE_CODING):
CopyRoutine = vcomGetSetLineCoding;
last_request = GET_LINE_CODING;
break;
case (SET_LINE_CODING):
CopyRoutine = vcomGetSetLineCoding;
last_request = SET_LINE_CODING;
break;
default: break;
}
}
if (CopyRoutine == NULL) {
return USB_UNSUPPORT;
}
pInformation->Ctrl_Info.CopyData = CopyRoutine;
pInformation->Ctrl_Info.Usb_wOffset = 0;
(*CopyRoutine)(0);
return USB_SUCCESS;
}
RESULT usbNoDataSetup(u8 request) {
/* we support set com feature but dont handle it */
if (Type_Recipient == (CLASS_REQUEST | INTERFACE_RECIPIENT)) {
switch (request) {
case (SET_COMM_FEATURE):
return USB_SUCCESS;
case (SET_CONTROL_LINE_STATE):
/* handle the control line status signal (reset?) */
vcomSetLineState();
return USB_SUCCESS;
}
}
return USB_UNSUPPORT;
}
RESULT usbGetInterfaceSetting(uint8 interface, uint8 alt_setting) {
if (alt_setting > 0) {
return USB_UNSUPPORT;
} else if (interface > 1) {
return USB_UNSUPPORT;
}
return USB_SUCCESS;
}
u8* usbGetDeviceDescriptor(u16 length) {
return Standard_GetDescriptorData(length, &Device_Descriptor);
}
u8* usbGetConfigDescriptor(u16 length) {
return Standard_GetDescriptorData(length, &Config_Descriptor);
}
u8* usbGetStringDescriptor(u16 length) {
return Standard_GetDescriptorData(length, &String_Descriptor);
}
/* internal callbacks to respond to standard requests */
void usbSetConfiguration(void) {
if (pInformation->Current_Configuration != 0) {
bDeviceState = CONFIGURED;
}
}
void usbSetDeviceAddress(void) {
bDeviceState = ADDRESSED;
}
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