em_usbh.c File Reference

Detailed Description

USB protocol stack library API for EFM32/EZR32.

Version

5.1.2

License

(C) Copyright 2014 Silicon Labs, http://www.silabs.com

This file is licensed under the Silabs License Agreement. See the file "Silabs_License_Agreement.txt" for details. Before using this software for any purpose, you must agree to the terms of that agreement.

Definition in file em_usbh.c.

#include "em_device.h"
#include "em_usb.h"
#include "em_cmu.h"
#include "em_core.h"
#include "em_usbtypes.h"
#include "em_usbhal.h"
#include "em_usbh.h"
#include "em_gpio.h"

Go to the source code of this file.

Functions
int	USBH_AssignHostChannel (USBH_Ep_TypeDef *ep, uint8_t hcnum)
	Assign a host channel to a given endpoint. More...
int	USBH_ControlMsg (USBH_Ep_TypeDef *ep, uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, uint16_t wLength, void *data, int timeout, USB_XferCompleteCb_TypeDef callback)
	Send a SETUP command to a device, non-blocking version. More...
int	USBH_ControlMsgB (USBH_Ep_TypeDef *ep, uint8_t bmRequestType, uint8_t bRequest, uint16_t wValue, uint16_t wIndex, uint16_t wLength, void *data, int timeout)
	Send a SETUP command to a device, blocking version. More...
bool	USBH_DeviceConnected (void)
	Check if a device is connected. More...
int	USBH_GetConfigurationDescriptorB (USBH_Device_TypeDef *device, void *buf, int len, uint8_t configIndex)
	Read a configuration descriptor from a device. More...
int	USBH_GetDeviceDescriptorB (USBH_Device_TypeDef *device, void *buf, int len)
	Read a device descriptor from a device. More...
uint8_t	USBH_GetPortSpeed (void)
	Get the bus speed of the device attached to the USB port. More...
int	USBH_GetStringB (USBH_Device_TypeDef *device, uint8_t *buf, int bufLen, uint8_t stringIndex, uint16_t langID)
	Read a string descriptor from a device. More...
int	USBH_Init (const USBH_Init_TypeDef *p)
	Initialize host protocol stack data structures. More...
int	USBH_InitDeviceData (USBH_Device_TypeDef *device, const uint8_t *buf, USBH_Ep_TypeDef *ep, int numEp, uint8_t deviceSpeed)
	Populate device and endpoint data structures with data retrieved during device enumeration. More...
int	USBH_PortReset (void)
	Drive reset signalling on the USB port. More...
int	USBH_PortResume (void)
	Drive resume signalling on the USB port. More...
void	USBH_PortSuspend (void)
	Set the USB port in suspend mode.
int	USBH_PrintConfigurationDescriptor (const USB_ConfigurationDescriptor_TypeDef *config, int maxLen)
	Pretty print a configuration descriptor on the debug serial port. More...
int	USBH_PrintDeviceDescriptor (const USB_DeviceDescriptor_TypeDef *device)
	Pretty print a device descriptor on the debug serial port. More...
int	USBH_PrintEndpointDescriptor (const USB_EndpointDescriptor_TypeDef *endpoint)
	Pretty print an endpoint descriptor on the debug serial port. More...
int	USBH_PrintInterfaceDescriptor (const USB_InterfaceDescriptor_TypeDef *interface)
	Pretty print an interface descriptor on the debug serial port. More...
void	USBH_PrintString (const char *pre, const USB_StringDescriptor_TypeDef *s, const char *post)
	Print a USB string descriptor on the debug serial port. More...
USB_ConfigurationDescriptor_TypeDef *	USBH_QGetConfigurationDescriptor (const uint8_t *buf, int configIndex)
	Return a pointer to a configuration descriptor. More...
USB_DeviceDescriptor_TypeDef *	USBH_QGetDeviceDescriptor (const uint8_t *buf)
	Return a pointer to the device descriptor. More...
USB_EndpointDescriptor_TypeDef *	USBH_QGetEndpointDescriptor (const uint8_t *buf, int configIndex, int interfaceIndex, int endpointIndex)
	Return a pointer to an endpoint descriptor. More...
USB_InterfaceDescriptor_TypeDef *	USBH_QGetInterfaceDescriptor (const uint8_t *buf, int configIndex, int interfaceIndex)
	Return a pointer to an interface descriptor. More...
int	USBH_QueryDeviceB (uint8_t *buf, size_t bufsize, uint8_t deviceSpeed)
	Will request both the device descriptor and the entire configuration descriptor from the device at USB address 0. More...
int	USBH_Read (USBH_Ep_TypeDef *ep, void *data, int byteCount, int timeout, USB_XferCompleteCb_TypeDef callback)
	Read data from device endpoint, non-blocking version. More...
int	USBH_ReadB (USBH_Ep_TypeDef *ep, void *data, int byteCount, int timeout)
	Read data from device endpoint, blocking version. More...
int	USBH_SetAddressB (USBH_Device_TypeDef *device, uint8_t deviceAddress)
	Give a device an USB address. More...
int	USBH_SetAltInterfaceB (USBH_Device_TypeDef *device, uint8_t interfaceIndex, uint8_t alternateSetting)
	Activate a device interface within current device configuration. More...
int	USBH_SetConfigurationB (USBH_Device_TypeDef *device, uint8_t configValue)
	Activate a device configuration. More...
int	USBH_StallEpB (USBH_Ep_TypeDef *ep)
	Set an endpoint in the stalled (halted) state. More...
void	USBH_Stop (void)
	Stop USB host operation. More...
int	USBH_UnStallEpB (USBH_Ep_TypeDef *ep)
	Reset stall state on a stalled (halted) endpoint. More...
int	USBH_WaitForDeviceConnectionB (uint8_t *buf, int timeoutInSeconds)
	Wait for device connection. More...
int	USBH_Write (USBH_Ep_TypeDef *ep, void *data, int byteCount, int timeout, USB_XferCompleteCb_TypeDef callback)
	Write data to device endpoint, non-blocking version. More...
int	USBH_WriteB (USBH_Ep_TypeDef *ep, void *data, int byteCount, int timeout)
	Write data to device endpoint, blocking version. More...