udma.h

基于TI公司Cortex-M3的uart超级通信开发

#define UDMA_PRI_SELECT         0x00000000
#define UDMA_ALT_SELECT         0x00000020

//*****************************************************************************
//
// uDMA interrupt sources, to be passed to uDMAIntRegister() and
// uDMAIntUnregister().
//
//*****************************************************************************
#define UDMA_INT_SW             62
#define UDMA_INT_ERR            63

//*****************************************************************************
//
// Channel numbers to be passed to API functions that require a channel number
// ID.  These are for secondary peripheral assignments.
//
//*****************************************************************************
#define UDMA_SEC_CHANNEL_UART2RX_0                                            \
                                0
#define UDMA_SEC_CHANNEL_UART2TX_1                                            \
                                1
#define UDMA_SEC_CHANNEL_TMR3A  2
#define UDMA_SEC_CHANNEL_TMR3B  3
#define UDMA_SEC_CHANNEL_TMR2A_4                                              \
                                4
#define UDMA_SEC_CHANNEL_TMR2B_5                                              \
                                5
#define UDMA_SEC_CHANNEL_TMR2A_6                                              \
                                6
#define UDMA_SEC_CHANNEL_TMR2B_7                                              \
                                7
#define UDMA_SEC_CHANNEL_UART1RX                                              \
                                8
#define UDMA_SEC_CHANNEL_UART1TX                                              \
                                9
#define UDMA_SEC_CHANNEL_SSI1RX 10
#define UDMA_SEC_CHANNEL_SSI1TX 11
#define UDMA_SEC_CHANNEL_UART2RX_12                                           \
                                12
#define UDMA_SEC_CHANNEL_UART2TX_13                                           \
                                13
#define UDMA_SEC_CHANNEL_TMR2A_14                                             \
                                14
#define UDMA_SEC_CHANNEL_TMR2B_15                                             \
                                15
#define UDMA_SEC_CHANNEL_TMR1A  18
#define UDMA_SEC_CHANNEL_TMR1B  19
#define UDMA_SEC_CHANNEL_EPI0RX 20
#define UDMA_SEC_CHANNEL_EPI0TX 21
#define UDMA_SEC_CHANNEL_ADC10  24
#define UDMA_SEC_CHANNEL_ADC11  25
#define UDMA_SEC_CHANNEL_ADC12  26
#define UDMA_SEC_CHANNEL_ADC13  27
#define UDMA_SEC_CHANNEL_SW     30

//*****************************************************************************
//
// uDMA default/secondary peripheral selections, to be passed to
// uDMAChannelSelectSecondary() and uDMAChannelSelectDefault().
//
//*****************************************************************************
#define UDMA_DEF_USBEP1RX_SEC_UART2RX                                         \
                                0x00000001
#define UDMA_DEF_USBEP1TX_SEC_UART2TX                                         \
                                0x00000002
#define UDMA_DEF_USBEP2RX_SEC_TMR3A                                           \
                                0x00000004
#define UDMA_DEF_USBEP2TX_SEC_TMR3B                                           \
                                0x00000008
#define UDMA_DEF_USBEP3RX_SEC_TMR2A                                           \
                                0x00000010
#define UDMA_DEF_USBEP3TX_SEC_TMR2B                                           \
                                0x00000020
#define UDMA_DEF_ETH0RX_SEC_TMR2A                                             \
                                0x00000040
#define UDMA_DEF_ETH0TX_SEC_TMR2B                                             \
                                0x00000080
#define UDMA_DEF_UART0RX_SEC_UART1RX                                          \
                                0x00000100
#define UDMA_DEF_UART0TX_SEC_UART1TX                                          \
                                0x00000200
#define UDMA_DEF_SSI0RX_SEC_SSI1RX                                            \
                                0x00000400
#define UDMA_DEF_SSI0TX_SEC_SSI1TX                                            \
                                0x00000800
#define UDMA_DEF_RESERVED_SEC_UART2RX                                         \
                                0x00001000
#define UDMA_DEF_RESERVED_SEC_UART2TX                                         \
                                0x00002000
#define UDMA_DEF_ADC00_SEC_TMR2A                                              \
                                0x00004000
#define UDMA_DEF_ADC01_SEC_TMR2B                                              \
                                0x00008000
#define UDMA_DEF_ADC02_SEC_RESERVED                                           \
                                0x00010000
#define UDMA_DEF_ADC03_SEC_RESERVED                                           \
                                0x00020000
#define UDMA_DEF_TMR0A_SEC_TMR1A                                              \
                                0x00040000
#define UDMA_DEF_TMR0B_SEC_TMR1B                                              \
                                0x00080000
#define UDMA_DEF_TMR1A_SEC_EPI0RX                                             \
                                0x00100000
#define UDMA_DEF_TMR1B_SEC_EPI0TX                                             \
                                0x00200000
#define UDMA_DEF_UART1RX_SEC_RESERVED                                         \
                                0x00400000
#define UDMA_DEF_UART1TX_SEC_RESERVED                                         \
                                0x00800000
#define UDMA_DEF_SSI1RX_SEC_ADC10                                             \
                                0x01000000
#define UDMA_DEF_SSI1TX_SEC_ADC11                                             \
                                0x02000000
#define UDMA_DEF_RESERVED_SEC_ADC12                                           \
                                0x04000000
#define UDMA_DEF_RESERVED_SEC_ADC13                                           \
                                0x08000000
#define UDMA_DEF_I2S0RX_SEC_RESERVED                                          \
                                0x10000000
#define UDMA_DEF_I2S0TX_SEC_RESERVED                                          \
                                0x20000000

//*****************************************************************************
//
// API Function prototypes
//
//*****************************************************************************
extern void uDMAEnable(void);
extern void uDMADisable(void);
extern unsigned long uDMAErrorStatusGet(void);
extern void uDMAErrorStatusClear(void);
extern void uDMAChannelEnable(unsigned long ulChannel);
extern void uDMAChannelDisable(unsigned long ulChannel);
extern tBoolean uDMAChannelIsEnabled(unsigned long ulChannel);
extern void uDMAControlBaseSet(void *pControlTable);
extern void *uDMAControlBaseGet(void);
extern void uDMAChannelRequest(unsigned long ulChannel);
extern void uDMAChannelAttributeEnable(unsigned long ulChannel,
                                       unsigned long ulAttr);
extern void uDMAChannelAttributeDisable(unsigned long ulChannel,
                                        unsigned long ulAttr);
extern unsigned long uDMAChannelAttributeGet(unsigned long ulChannel);
extern void uDMAChannelControlSet(unsigned long ulChannel,
                                  unsigned long ulControl);
extern void uDMAChannelTransferSet(unsigned long ulChannel,
                                   unsigned long ulMode, void *pvSrcAddr,
                                   void *pvDstAddr,
                                   unsigned long ulTransferSize);
extern unsigned long uDMAChannelSizeGet(unsigned long ulChannel);
extern unsigned long uDMAChannelModeGet(unsigned long ulChannel);
extern void uDMAIntRegister(unsigned long ulIntChannel,
                            void (*pfnHandler)(void));
extern void uDMAIntUnregister(unsigned long ulIntChannel);
extern void uDMAChannelSelectDefault(unsigned long ulDefPeriphs);
extern void uDMAChannelSelectSecondary(unsigned long ulSecPeriphs);

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

#endif //  __UDMA_H__