uart.h

Sirf/Centrality公司GPS平台AtlasIII芯片AT640的Nboot源码

//
// Copyright (c) 2002 Palmmicro Communications Inc.  All rights reserved.
//                                                                     
// --------------------------------------------------------------------
/*++

Module Name:
	
  usp.h
	  
Abstract:
		
  This file defines the bitmasks of the UART module.
		  
Notes:
				
--*/
#ifndef _PALM2_UART_H_
#define _PALM2_UART_H_

#define UART_32BYTE_FIFO


// UART_LINE_CTRL              		
#define UART_STOP_BIT_NUM
#define UART_DATA_BIT_NUM
#define	UART_SET_BREAK				0x40

// UART_MODEM_CTRL			 
#define UART_LOOP_BACK				0x10
#define UART_RTS				0x02
#define UART_DTR				0x01

// UART_MODEM_STATUS			
#define UART_DELTA_CTS				0x1
#define UART_DELTA_DSR				0x2
#define UART_DELTA_RI				0x4
#define UART_DELTA_DCD				0x8
#define UART_CTS
#define UART_DSR
#define UART_RI
#define UART_DCD

// UART_TXRX_ENA_REG                    
#define UART_RX_EN                               0x01
#define UART_TX_EN                               0x02

// UART_DIVISOR                         
#define UART_CLK_DIV                             0x01

// UART_INT_ENABLE  &  UART_INT_STATUS                 
#define UART_INT_RX_DONE_MASK			0x0001
#define UART_INT_TX_DONE_MASK                   0x0002
#define UART_INT_RX_OF_MASK			0x0004
#define UART_INT_TX_ALLEMPTY_MASK		0x0008
#define UART_INT_DMA_RX_MASK			0x0010
#define UART_INT_DMA_TX_MASK			0x0020
#define UART_INT_RX_FF_MASK                     0x0040
#define UART_INT_TX_FE_MASK                     0x0080
#define UART_INT_RX_THLD_MASK			0x0100
#define UART_INT_TX_THLD_MASK			0x0200
#define UART_INT_FRM_ERR_MASK                   0x0400
#define UART_BREAK_MASK	                        0x0800
#define UART_INT_TIMEOUT_MASK			0x1000
#define UART_INT_MODEM_MASK			0x2000

// UART_RISC_DSP_MODE                   
#define UART_DSP_ACCESS                          0x1

//UART_TX_DMA_IO_CTRL bit fields
#define UART_TX_IO_MODE                          0x1

//UART_TXFIFO_OP bit fields
#define UART_TXFIFO_RESET                        0x1             
#define UART_TXFIFO_START                        0x2

//UART_RX_DMA_IO_CTRL bit fields
#define UART_RX_IO_MODE                          0x1
#define UART_RX_FIFO_FLUSH			 0x4

//UART_RXFIFO_OP bit fields
#define UART_RXFIFO_RESET                        0x1
#define UART_RXFIFO_START                        0x2


#ifdef	UART_32BYTE_FIFO
//UART_TXFIFO_CTRL bit fields
#define UART_TXFIFO_THLD_MASK                    0x1f
                                
//UART_TXFIFO_LEVEL_CHK bit fields
#define UART_TXFIFO_SC_MASK                      0x7
#define UART_TXFIFO_LC_MASK                      0x1c00
#define UART_TXFIFO_HC_MASK                      0x700000

//UART_TXFIFO_STATUS bit fields
#define UART_TXFIFO_LEVEL_MASK                   0x3f
#define UART_TXFIFO_FULL                         0x40//0x20
#define UART_TXFIFO_EMPTY                        0x80//0x40

//UART_RXFIFO_CTRL bit fields
#define UART_RXFIFO_THLD_MASK                    0x1f
                                
//UART_RXFIFO_LEVEL_CHK bit fields
#define UART_RXFIFO_SC_MASK                      0x7
#define UART_RXFIFO_LC_MASK                      0x1c00
#define UART_RXFIFO_HC_MASK                      0x700000

//UART_RXFIFO_STATUS bit fields
#define UART_RXFIFO_LEVEL_MASK                   0x3f
#define UART_RXFIFO_FULL                         0x40//0x20
#define UART_RXFIFO_EMPTY                        0x80//0x40

#else

//UART_TXFIFO_CTRL bit fields
#define UART_TXFIFO_THLD_MASK                    0xf
                                
//UART_TXFIFO_LEVEL_CHK bit fields
#define UART_TXFIFO_SC_MASK                      0x3
#define UART_TXFIFO_LC_MASK                      0xc00
#define UART_TXFIFO_HC_MASK                      0x300000

//UART_TXFIFO_STATUS bit fields
#define UART_TXFIFO_LEVEL_MASK                   0x1f
#define UART_TXFIFO_FULL                         0x10
#define UART_TXFIFO_EMPTY                        0x20


//UART_RXFIFO_CTRL bit fields
#define UART_RXFIFO_THLD_MASK                    0xf
                                
//UART_RXFIFO_LEVEL_CHK bit fields
#define UART_RXFIFO_SC_MASK                      0x3
#define UART_RXFIFO_LC_MASK                      0xc00
#define UART_RXFIFO_HC_MASK                      0x300000

//UART_RXFIFO_STATUS bit fields
#define UART_RXFIFO_LEVEL_MASK                   0x1f
#define UART_RXFIFO_FULL                         0x10
#define UART_RXFIFO_EMPTY                        0x20

#endif


#define	UART_IO_DIV		*((volatile unsigned *)0xffff5014)
#define	UART_CONFIG		*((volatile unsigned *)0xffff5018)



#define	DEBUG_UART_IO2SYS_1_4			0x8
#define	DEBUG_UART_SET_BRK			0x10
#define	DEBUG_UART_RXENA			0x20
#define	DEBUG_UART_TXENA			0x40
#define	DEBUG_UART_RI				0x80
#define	DEBUG_UART_CTS				0x100
#define	DEBUG_UART_DSR				0x200
#define	DEBUG_UART_DCD				0x400



#endif//#ifndef _PALM2_UART_H_