//*****************************************************************************
//
// usb.h - Prototypes for the USB Interface Driver.
//
// Copyright (c) 2007-2008 Luminary Micro, Inc.  All rights reserved.
// 
// Software License Agreement
// 
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
// exclusively on LMI's microcontroller products.
// 
// The software is owned by LMI and/or its suppliers, and is protected under
// applicable copyright laws.  All rights are reserved.  You may not combine
// this software with "viral" open-source software in order to form a larger
// program.  Any use in violation of the foregoing restrictions may subject
// the user to criminal sanctions under applicable laws, as well as to civil
// liability for the breach of the terms and conditions of this license.
// 
// THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
// 
// This is part of revision 3416 of the Stellaris Peripheral Driver Library.
//
//*****************************************************************************

#ifndef __USB_H__
#define __USB_H__

//*****************************************************************************
//
// If building with a C++ compiler, make all of the definitions in this header
// have a C binding.
//
//*****************************************************************************
#ifdef __cplusplus
extern "C"
{
#endif

//*****************************************************************************
//
// The following are values that can be passed to USBIntEnable(),
// USBIntDisable(), and USBIntClear() as the ulIntFlags parameter, and which
// are returned from USBIntStatus().
//
//*****************************************************************************
#define USB_INT_ALL             0xFF000E0F  // All Interrupt sources
#define USB_INT_STATUS          0xFF000000  // Status Interrupts
#define USB_INT_VBUS_ERR        0x80000000  // VBUS Error
#define USB_INT_SESSION_START   0x40000000  // Session Start Detected
#define USB_INT_SESSION_END     0x20000000  // Session End Detected
#define USB_INT_DISCONNECT      0x20000000  // Disconnect Detected
#define USB_INT_CONNECT         0x10000000  // Device Connect Detected
#define USB_INT_SOF             0x08000000  // Start of Frame Detected
#define USB_INT_BABBLE          0x04000000  // Babble signaled
#define USB_INT_RESET           0x04000000  // Reset signaled
#define USB_INT_RESUME          0x02000000  // Resume detected
#define USB_INT_SUSPEND         0x01000000  // Suspend detected
#define USB_INT_POWER_FAULT     0x00010000  // Power Fault detected
#define USB_INT_HOST_IN         0x00000E00  // Host IN Interrupts
#define USB_INT_DEV_OUT         0x00000E00  // Device OUT Interrupts
#define USB_INT_HOST_IN_EP3     0x00000800  // Endpoint 3 Host IN Interrupt
#define USB_INT_HOST_IN_EP2     0x00000400  // Endpoint 2 Host IN Interrupt
#define USB_INT_HOST_IN_EP1     0x00000200  // Endpoint 1 Host IN Interrupt
#define USB_INT_DEV_OUT_EP3     0x00000800  // Endpoint 3 Device OUT Interrupt
#define USB_INT_DEV_OUT_EP2     0x00000400  // Endpoint 2 Device OUT Interrupt
#define USB_INT_DEV_OUT_EP1     0x00000200  // Endpoint 1 Device OUT Interrupt
#define USB_INT_HOST_OUT        0x0000000E  // Host OUT Interrupts
#define USB_INT_DEV_IN          0x0000000E  // Device IN Interrupts
#define USB_INT_HOST_OUT_EP3    0x00000008  // Endpoint 3 HOST_OUT Interrupt
#define USB_INT_HOST_OUT_EP2    0x00000004  // Endpoint 2 HOST_OUT Interrupt
#define USB_INT_HOST_OUT_EP1    0x00000002  // Endpoint 1 HOST_OUT Interrupt
#define USB_INT_DEV_IN_EP3      0x00000008  // Endpoint 3 DEV_IN Interrupt
#define USB_INT_DEV_IN_EP2      0x00000004  // Endpoint 2 DEV_IN Interrupt
#define USB_INT_DEV_IN_EP1      0x00000002  // Endpoint 1 DEV_IN Interrupt
#define USB_INT_EP0             0x00000001  // Endpoint 0 Interrupt

//*****************************************************************************
//
// The following are values that are returned from USBSpeedGet().
//
//*****************************************************************************
#define USB_UNDEF_SPEED         0x80000000  // Current speed is undefined
#define USB_FULL_SPEED          0x00000001  // Current speed is Full Speed
#define USB_LOW_SPEED           0x00000000  // Current speed is Low Speed

//*****************************************************************************
//
// The following are values that are returned from USBEndpointStatus().  The
// USB_HOST_* values are used when the USB controller is in host mode and the
// USB_DEV_* values are used when the USB controller is in device mode.
//
//*****************************************************************************
#define USB_HOST_IN_PID_ERROR   0x01000000  // Stall on this endpoint received
#define USB_HOST_IN_NOT_COMP    0x00100000  // Device failed to respond
#define USB_HOST_IN_STALL       0x00400000  // Stall on this endpoint received
#define USB_HOST_IN_DATA_ERROR  0x00080000  // CRC or bit-stuff error
                                            // (ISOC Mode)
#define USB_HOST_IN_NAK_TO      0x00080000  // NAK received for more than the
                                            // specified timeout period
#define USB_HOST_IN_ERROR       0x00040000  // Failed to communicate with a
                                            // device
#define USB_HOST_IN_FIFO_FULL   0x00020000  // RX FIFO full
#define USB_HOST_IN_PKTRDY      0x00010000  // Data packet ready
#define USB_HOST_OUT_NAK_TO     0x00000080  // NAK received for more than the
                                            // specified timeout period
#define USB_HOST_OUT_NOT_COMP   0x00000080  // No response from device
                                            // (ISOC mode)
#define USB_HOST_OUT_STALL      0x00000020  // Stall on this endpoint received
#define USB_HOST_OUT_ERROR      0x00000004  // Failed to communicate with a
                                            // device
#define USB_HOST_OUT_FIFO_NE    0x00000002  // TX FIFO is not empty
#define USB_HOST_OUT_PKTPEND    0x00000001  // Transmit still being transmitted
#define USB_HOST_EP0_NAK_TO     0x00000080  // NAK received for more than the
                                            // specified timeout period
#define USB_HOST_EP0_STATUS     0x00000040  // This was a status packet
#define USB_HOST_EP0_ERROR      0x00000010  // Failed to communicate with a
                                            // device
#define USB_HOST_EP0_RX_STALL   0x00000004  // Stall on this endpoint received
#define USB_HOST_EP0_RXPKTRDY   0x00000001  // Receive data packet ready
#define USB_DEV_RX_SENT_STALL   0x00400000  // Stall was sent on this endpoint
#define USB_DEV_RX_DATA_ERROR   0x00080000  // CRC error on the data
#define USB_DEV_RX_OVERRUN      0x00040000  // OUT packet was not loaded due to
                                            // a full FIFO
#define USB_DEV_RX_FIFO_FULL    0x00020000  // RX FIFO full
#define USB_DEV_RX_PKT_RDY      0x00010000  // Data packet ready
#define USB_DEV_TX_NOT_COMP     0x00000080  // Large packet split up, more data
                                            // to come
#define USB_DEV_TX_SENT_STALL   0x00000020  // Stall was sent on this endpoint
#define USB_DEV_TX_UNDERRUN     0x00000004  // IN received with no data ready
#define USB_DEV_TX_FIFO_NE      0x00000002  // The TX FIFO is not empty
#define USB_DEV_TX_TXPKTRDY     0x00000001  // Transmit still being transmitted
#define USB_DEV_EP0_SETUP_END   0x00000010  // Control transaction ended before
                                            // Data End seen
#define USB_DEV_EP0_SENT_STALL  0x00000004  // Stall was sent on this endpoint
#define USB_DEV_EP0_IN_PKTPEND  0x00000002  // Transmit data packet pending
#define USB_DEV_EP0_OUT_PKTRDY  0x00000001  // Receive data packet ready

//*****************************************************************************
//
// The following are values that can be passed to USBHostEndpointConfig() and
// USBDevEndpointConfig() as the ulFlags parameter.
//
//*****************************************************************************
#define USB_EP_AUTO_SET         0x00000001  // Auto set feature enabled
#define USB_EP_AUTO_REQUEST     0x00000002  // Auto request feature enabled
#define USB_EP_AUTO_CLEAR       0x00000004  // Auto clear feature enabled
#define USB_EP_DMA_MODE_0       0x00000008  // Enable DMA access using mode 0
#define USB_EP_DMA_MODE_1       0x00000010  // Enable DMA access using mode 1
#define USB_EP_MODE_ISOC        0x00000000  // Isochronous endpoint
#define USB_EP_MODE_BULK        0x00000100  // Bulk endpoint
#define USB_EP_MODE_INT         0x00000200  // Interrupt endpoint
#define USB_EP_MODE_CTRL        0x00000300  // Control endpoint
#define USB_EP_MODE_MASK        0x00000300  // Mode Mask
#define USB_EP_SPEED_LOW        0x00000000  // Low Speed
#define USB_EP_SPEED_FULL       0x00001000  // Full Speed
#define USB_EP_HOST_EP0         0x00002000  // Host endpoint 0
#define USB_EP_HOST_IN          0x00001000  // Host IN endpoint
#define USB_EP_HOST_OUT         0x00002000  // Host OUT endpoint
#define USB_EP_DEV_EP0          0x00002000  // Device endpoint 0
#define USB_EP_DEV_IN           0x00002000  // Device IN endpoint
#define USB_EP_DEV_OUT          0x00001000  // Device OUT endpoint

//*****************************************************************************
//
// The following are values that can be passed to USBHostPwrFaultConfig() as
// the ulFlags parameter.
//
//*****************************************************************************
#define USB_HOST_PWRFLT_LOW     0x00000010
#define USB_HOST_PWRFLT_HIGH    0x00000030
#define USB_HOST_PWRFLT_EP_NONE 0x00000000
#define USB_HOST_PWRFLT_EP_TRI  0x00000140
#define USB_HOST_PWRFLT_EP_LOW  0x00000240
#define USB_HOST_PWRFLT_EP_HIGH 0x00000340
#define USB_HOST_PWREN_LOW      0x00000000
#define USB_HOST_PWREN_HIGH     0x00000001
#define USB_HOST_PWREN_VBLOW    0x00000002
#define USB_HOST_PWREN_VBHIGH   0x00000003

//*****************************************************************************
//
// The following are special values that can be passed to
// USBHostEndpointConfig() as the ulNAKPollInterval parameter.
//
//*****************************************************************************
#define MAX_NAK_LIMIT           31          // Maximum NAK interval
#define DISABLE_NAK_LIMIT       0           // No NAK timeouts

//*****************************************************************************
//
// This value specifies the maximum size of transfers on endpoint 0 as 64
// bytes.  This value is fixed in hardware as the FIFO size for endpoint 0.
//
//*****************************************************************************
#define MAX_PACKET_SIZE_EP0     64

//*****************************************************************************
//
// These values are used to indicate which endpoint to access.
//
//*****************************************************************************
#define USB_EP_0                0x00000000  // Endpoint 0
#define USB_EP_1                0x00000010  // Endpoint 1
#define USB_EP_2                0x00000020  // Endpoint 2
#define USB_EP_3                0x00000030  // Endpoint 3
#define NUM_USB_EP              4           // Number of supported endpoints

//*****************************************************************************
//
// These macros allow conversion between 0-based endpoint indices and the
// USB_EP_x values required when calling various USB APIs.
//
//*****************************************************************************
#define INDEX_TO_USB_EP(x)      ((x) << 4)
#define USB_EP_TO_INDEX(x)      ((x) >> 4)

//*****************************************************************************
//
// The following are values that can be passed to USBFIFOConfigSet() as the
// ulFIFOSize parameter.
//
//*****************************************************************************
#define USB_FIFO_SZ_8           0x00000000  // 8 byte FIFO
#define USB_FIFO_SZ_16          0x00000001  // 16 byte FIFO
#define USB_FIFO_SZ_32          0x00000002  // 32 byte FIFO
#define USB_FIFO_SZ_64          0x00000003  // 64 byte FIFO
#define USB_FIFO_SZ_128         0x00000004  // 128 byte FIFO
#define USB_FIFO_SZ_256         0x00000005  // 256 byte FIFO
#define USB_FIFO_SZ_512         0x00000006  // 512 byte FIFO
#define USB_FIFO_SZ_1024        0x00000007  // 1024 byte FIFO
#define USB_FIFO_SZ_2048        0x00000008  // 2048 byte FIFO
#define USB_FIFO_SZ_4096        0x00000009  // 4096 byte FIFO
#define USB_FIFO_SZ_8_DB        0x00000010  // 8 byte double buffered FIFO
                                            // (occupying 16 bytes)
#define USB_FIFO_SZ_16_DB       0x00000011  // 16 byte double buffered FIFO
                                            // (occupying 32 bytes)
#define USB_FIFO_SZ_32_DB       0x00000012  // 32 byte double buffered FIFO
                                            // (occupying 64 bytes)
#define USB_FIFO_SZ_64_DB       0x00000013  // 64 byte double buffered FIFO
                                            // (occupying 128 bytes)
#define USB_FIFO_SZ_128_DB      0x00000014  // 128 byte double buffered FIFO
                                            // (occupying 256 bytes)
#define USB_FIFO_SZ_256_DB      0x00000015  // 256 byte double buffered FIFO
                                            // (occupying 512 bytes)
#define USB_FIFO_SZ_512_DB      0x00000016  // 512 byte double buffered FIFO
                                            // (occupying 1024 bytes)
#define USB_FIFO_SZ_1024_DB     0x00000017  // 1024 byte double buffered FIFO
                                            // (occupying 2048 bytes)
#define USB_FIFO_SZ_2048_DB     0x00000018  // 2048 byte double buffered FIFO
                                            // (occupying 4096 bytes)

//*****************************************************************************
//
// This macro allow conversion from a FIFO size label as defined above to
// a number of bytes
//
//*****************************************************************************
#define USB_FIFO_SIZE_DB_FLAG  0x00000010
#define USB_FIFO_SZ_TO_BYTES(x) ((8 << ((x) & ~ USB_FIFO_SIZE_DB_FLAG)) * \
                                 (((x) & USB_FIFO_SIZE_DB_FLAG) ? 2 : 1))

//*****************************************************************************
//
// The following are values that can be passed to USBEndpointDataSend() as the
// ulTransType parameter.
//
//*****************************************************************************
#define USB_TRANS_OUT           0x00000102  // Normal OUT transaction
#define USB_TRANS_IN            0x00000102  // Normal IN transaction
#define USB_TRANS_IN_LAST       0x0000010a  // Final IN transaction (for
                                            // endpoint 0 in device mode)
#define USB_TRANS_SETUP         0x0000110a  // Setup transaction (for endpoint
                                            // 0)
#define USB_TRANS_STATUS        0x00000142  // Status transaction (for endpoint
                                            // 0)

//*****************************************************************************
//
// Prototypes for the APIs.
//
//*****************************************************************************
extern unsigned long USBDevAddrGet(unsigned long ulBase);
extern void USBDevAddrSet(unsigned long ulBase, unsigned long ulAddress);
extern void USBDevConnect(unsigned long ulBase);
extern void USBDevDisconnect(unsigned long ulBase);
extern void USBDevEndpointConfig(unsigned long ulBase,
                                 unsigned long ulEndpoint,
                                 unsigned long ulMaxPacketSize,
                                 unsigned long ulFlags);
extern void USBDevEndpointConfigGet(unsigned long ulBase,
                                    unsigned long ulEndpoint,
                                    unsigned long *pulMaxPacketSize,
                                    unsigned long *pulFlags);
extern void USBDevEndpointDataAck(unsigned long ulBase,
                                  unsigned long ulEndpoint,
                                  tBoolean bIsLastPacket);
extern void USBDevEndpointStall(unsigned long ulBase, unsigned long ulEndpoint,
                                unsigned long ulFlags);
extern void USBDevEndpointStallClear(unsigned long ulBase,
                                     unsigned long ulEndpoint,
                                     unsigned long ulFlags);
extern void USBDevEndpointStatusClear(unsigned long ulBase,
                                      unsigned long ulEndpoint,
                                      unsigned long ulFlags);
extern unsigned long USBEndpointDataAvail(unsigned long ulBase,
                                          unsigned long ulEndpoint);
extern long USBEndpointDataGet(unsigned long ulBase, unsigned long ulEndpoint,
                               unsigned char *pucData, unsigned long *pulSize);
extern long USBEndpointDataPut(unsigned long ulBase, unsigned long ulEndpoint,
                               unsigned char *pucData, unsigned long ulSize);
extern long USBEndpointDataSend(unsigned long ulBase, unsigned long ulEndpoint,
                                unsigned long ulTransType);
extern void USBEndpointDataToggleClear(unsigned long ulBase,
                                       unsigned long ulEndpoint,
                                       unsigned long ulFlags);
extern unsigned long USBEndpointStatus(unsigned long ulBase,
                                       unsigned long ulEndpoint);
extern unsigned long USBFIFOAddrGet(unsigned long ulBase,
                                    unsigned long ulEndpoint);
extern void USBFIFOConfigGet(unsigned long ulBase, unsigned long ulEndpoint,
                             unsigned long *pulFIFOAddress,
                             unsigned long *pulFIFOSize,
                             unsigned long ulFlags);
extern void USBFIFOConfigSet(unsigned long ulBase, unsigned long ulEndpoint,
                             unsigned long ulFIFOAddress,
                             unsigned long ulFIFOSize, unsigned long ulFlags);
extern void USBFIFOFlush(unsigned long ulBase, unsigned long ulEndpoint,
                         unsigned long ulFlags);
extern unsigned long USBFrameNumberGet(unsigned long ulBase);
extern unsigned long USBHostAddrGet(unsigned long ulBase,
                                    unsigned long ulEndpoint,
                                    unsigned long ulFlags);
extern void USBHostAddrSet(unsigned long ulBase, unsigned long ulEndpoint,
                           unsigned long ulAddr, unsigned long ulFlags);
extern void USBHostEndpointConfig(unsigned long ulBase,
                                  unsigned long ulEndpoint,
                                  unsigned long ulMaxPacketSize,
                                  unsigned long ulNAKPollInterval,
                                  unsigned long ulTargetEndpoint,
                                  unsigned long ulFlags);
extern void USBHostEndpointDataAck(unsigned long ulBase,
                                   unsigned long ulEndpoint);
extern void USBHostEndpointDataToggle(unsigned long ulBase,
                                      unsigned long ulEndpoint,
                                      tBoolean bDataToggle,
                                      unsigned long ulFlags);
extern void USBHostEndpointStatusClear(unsigned long ulBase,
                                       unsigned long ulEndpoint,
                                       unsigned long ulFlags);
extern unsigned long USBHostHubAddrGet(unsigned long ulBase,
                                       unsigned long ulEndpoint,
                                       unsigned long ulFlags);
extern void USBHostHubAddrSet(unsigned long ulBase, unsigned long ulEndpoint,
                              unsigned long ulAddr, unsigned long ulFlags);
extern void USBHostPwrDisable(unsigned long ulBase);
extern void USBHostPwrEnable(unsigned long ulBase);
extern void USBHostPwrFaultConfig(unsigned long ulBase, unsigned long ulFlags);
extern void USBHostPwrFaultDisable(unsigned long ulBase);
extern void USBHostPwrFaultEnable(unsigned long ulBase);
extern void USBHostRequestIN(unsigned long ulBase, unsigned long ulEndpoint);
extern void USBHostRequestStatus(unsigned long ulBase);
extern void USBHostReset(unsigned long ulBase, tBoolean bStart);
extern void USBHostResume(unsigned long ulBase, tBoolean bStart);
extern unsigned long USBHostSpeedGet(unsigned long ulBase);
extern void USBHostSuspend(unsigned long ulBase);
extern void USBIntDisable(unsigned long ulBase, unsigned long ulIntFlags);
extern void USBIntEnable(unsigned long ulBase, unsigned long ulIntFlags);
extern void USBIntRegister(unsigned long ulBase, void(*pfnHandler)(void));
extern unsigned long USBIntStatus(unsigned long ulBase);
extern void USBIntUnregister(unsigned long ulBase);
extern void USBOTGSessionRequest(unsigned long ulBase, tBoolean bStart);

//*****************************************************************************
//
// Mark the end of the C bindings section for C++ compilers.
//
//*****************************************************************************
#ifdef __cplusplus
}
#endif

#endif // __USB_H__
