sci.h
来自「RTEMS (Real-Time Executive for Multiproc」· C头文件 代码 · 共 246 行
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/***************************************************************************** File: sci.h** Desc: This is the include file for the serial communications interface.** Note: See bsp.h,confdefs.h,system.h for installing drivers into RTEMS.** $Id: sci.h,v 1.1 2002/02/28 23:10:39 joel Exp $****************************************************************************/#ifndef _sci_h_#define _sci_h_/******************************************************************************* IOCTL commands for the sci driver. I'm still working on these...*******************************************************************************/#define SCI_IOCTL_PARITY_NONE 0x00 // no parity bit after the data bits#define SCI_IOCTL_PARITY_ODD 0x01 // parity bit added after data bits#define SCI_IOCTL_PARITY_EVEN 0x02 // parity bit added after data bits#define SCI_IOCTL_PARITY_MARK 0x03 // parity bit is lo, -12 volts, logical 1#define SCI_IOCTL_PARITY_SPACE 0x04 // parity bit is hi, +12 volts, logical 0#define SCI_IOCTL_PARITY_FORCED_ON 0x03 // parity bit is forced hi or lo#define SCI_IOCTL_PARITY_FORCED_OFF 0x04 // parity bit is forced hi or lo#define SCI_IOCTL_BAUD_RATE 0x20 // set the baud rate, arg is baud#define SCI_IOCTL_DATA_BITS 0x30 // set the data bits, arg is # bits#define SCI_IOCTL_STOP_BITS_1 0x40 // 1 stop bit after char frame#define SCI_IOCTL_STOP_BITS_2 0x41 // 2 stop bit after char frame#define SCI_IOCTL_MODE_NORMAL 0x50 // normal operating mode#define SCI_IOCTL_MODE_LOOP 0x51 // internal loopback mode#define SCI_IOCTL_FLOW_NONE 0x60 // no flow control#define SCI_IOCTL_FLOW_RTS_CTS 0x61 // hardware flow control#define SCI_IOCTL_SEND_BREAK 0x70 // send an rs-232 break#define SCI_IOCTL_MODE_1200 0x80 // 1200,n,8,1 download mode#define SCI_IOCTL_MODE_9600 0x81 // 9600,n,8,1 download mode#define SCI_IOCTL_MODE_9_BIT 0x82 // 9600,forced,8,1 command mode /******************************************************************************* SCI Registers*******************************************************************************/// SCI Control Register 0 (SCCR0) $FFFC08// 8 4 2 1 - 8 4 2 1 - 8 4 2 1 - 8 4 2 1// ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^// | | | | | | | | | | | | | | | |// | | | | | | | | | | | | | | | +----- 0 baud rate divisor// | | | | | | | | | | | | | | +------- 1 baud rate divisor// | | | | | | | | | | | | | +--------- 2 baud rate divisor// | | | | | | | | | | | | +----------- 3 baud rate divisor// | | | | | | | | | | | |// | | | | | | | | | | | +--------------- 4 baud rate divisor// | | | | | | | | | | +----------------- 5 baud rate divisor// | | | | | | | | | +------------------- 6 baud rate divisor// | | | | | | | | +--------------------- 7 baud rate divisor// | | | | | | | |// | | | | | | | +------------------------- 8 baud rate divisor// | | | | | | +--------------------------- 9 baud rate divisor// | | | | | +----------------------------- 10 baud rate divisor// | | | | +------------------------------- 11 baud rate divisor// | | | |// | | | +----------------------------------- 12 baud rate divisor// | | +------------------------------------- 13 unused// | +--------------------------------------- 14 unused// +----------------------------------------- 15 unused// 0 0 0 0 - 0 0 0 0 - 0 0 0 0 - 0 1 0 0 reset value - (64k baud?)#define SCI_BAUD_57_6K 9#define SCI_BAUD_38_4K 14#define SCI_BAUD_19_2K 27#define SCI_BAUD_9600 55#define SCI_BAUD_4800 109#define SCI_BAUD_2400 218#define SCI_BAUD_1200 437 // SCI Control Register 1 (SCCR1) $FFFC0A// 8 4 2 1 - 8 4 2 1 - 8 4 2 1 - 8 4 2 1// ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^// | | | | | | | | | | | | | | | |// | | | | | | | | | | | | | | | +----- 0 send a break// | | | | | | | | | | | | | | +------- 1 rcvr wakeup mode// | | | | | | | | | | | | | +--------- 2 rcvr enable// | | | | | | | | | | | | +----------- 3 xmtr enable// | | | | | | | | | | | |// | | | | | | | | | | | +--------------- 4 idle line intr enable// | | | | | | | | | | +----------------- 5 rcvr intr enable// | | | | | | | | | +------------------- 6 xmit complete intr enable// | | | | | | | | +--------------------- 7 xmtr intr enable// | | | | | | | |// | | | | | | | +------------------------- 8 wakeup on address mark// | | | | | | +--------------------------- 9 mode 1=9 bits, 0=8 bits// | | | | | +----------------------------- 10 parity enable 1=on, 0=off// | | | | +------------------------------- 11 parity type 1=odd, 0=even// | | | |// | | | +----------------------------------- 12 idle line select// | | +------------------------------------- 13 wired-or mode// | +--------------------------------------- 14 loop mode// +----------------------------------------- 15 unused// 0 0 0 0 - 0 0 0 0 - 0 0 0 0 - 0 0 0 0 reset value#define SCI_SEND_BREAK 0x0001 // 0000-0000-0000-0001#define SCI_RCVR_WAKEUP 0x0002 // 0000-0000-0000-0010#define SCI_ENABLE_RCVR 0x0004 // 0000-0000-0000-0100#define SCI_ENABLE_XMTR 0x0008 // 0000-0000-0000-1000#define SCI_DISABLE_RCVR 0xFFFB // 1111-1111-1111-1011#define SCI_DISABLE_XMTR 0xFFF7 // 1111-1111-1111-0111#define SCI_ENABLE_INT_IDLE 0x0010 // 0000-0000-0001-0000#define SCI_ENABLE_INT_RX 0x0020 // 0000-0000-0010-0000#define SCI_ENABLE_INT_TX_DONE 0x0040 // 0000-0000-0100-0000#define SCI_ENABLE_INT_TX 0x0080 // 0000-0000-1000-0000#define SCI_DISABLE_INT_ALL 0xFF00 // 1111-1111-0000-0000 ???#define SCI_DISABLE_INT_RX 0xFFDF // 1111-1111-1101-1111#define SCI_CLEAR_RX_INT 0xFFBF // 1111-1111-1011-1111#define SCI_DISABLE_INT_TX 0xFF7F // 1111-1111-0111-1111#define SCI_CLEAR_TDRE 0xFEFF // 1111-1110-1111-1111#define SCI_RCVR_WAKE_ON_MARK 0x0100 // 0000-0001-0000-0000#define SCI_9_DATA_BITS 0x0200 // 0000-0010-0000-0000#define SCI_PARITY_ENABLE 0x0400 // 0000-0100-0000-0000#define SCI_PARITY_ODD 0x0800 // 0000-1000-0000-0000#define SCI_RCVR_WAKE_ON_IDLE 0xFEFF // 1111-1110-1111-1111#define SCI_8_DATA_BITS 0xFDFF // 1111-1101-1111-1111#define SCI_PARITY_DISABLE 0xFBFF // 1111-1011-1111-1111#define SCI_PARITY_EVEN 0xF7FF // 1111-0111-1111-1111#define SCI_PARITY_NONE 0xF3FF // 1111-0011-1111-1111#define SCI_IDLE_LINE_LONG 0x1000 // 0001-0000-0000-0000#define SCI_TXD_OPEN_DRAIN 0x2000 // 0010-0000-0000-0000#define SCI_LOOPBACK_MODE 0x4000 // 0100-0000-0000-0000#define SCI_SCCR1_UNUSED 0x8000 // 1000-0000-0000-0000 // SCI Status Register (SCSR) $FFFC0C// 8 4 2 1 - 8 4 2 1 - 8 4 2 1 - 8 4 2 1// ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^// | | | | | | | | | | | | | | | |// | | | | | | | | | | | | | | | +----- 0 PF - parity error// | | | | | | | | | | | | | | +------- 1 FE - framing error// | | | | | | | | | | | | | +--------- 2 NF - noise flag// | | | | | | | | | | | | +----------- 3 OR - overrun flag// | | | | | | | | | | | |// | | | | | | | | | | | +--------------- 4 IDLE - idle line detected// | | | | | | | | | | +----------------- 5 RAF - rcvr active flag// | | | | | | | | | +------------------- 6 RDRF - rcv data reg full// | | | | | | | | +--------------------- 7 TC - xmt complete flag// | | | | | | | |// | | | | | | | +------------------------- 8 TDRE - xmt data reg empty// | | | | | | +--------------------------- 9 always zero// | | | | | +----------------------------- 10 always zero// | | | | +------------------------------- 11 always zero// | | | |// | | | +----------------------------------- 12 always zero// | | +------------------------------------- 13 always zero// | +--------------------------------------- 14 always zero// +----------------------------------------- 15 always zero// 0 0 0 0 - 0 0 0 1 - 1 0 0 0 - 0 0 0 0 reset value#define SCI_ERROR_PARITY 0x0001 // 0000-0000-0000-0001#define SCI_ERROR_FRAMING 0x0002 // 0000-0000-0000-0010#define SCI_ERROR_NOISE 0x0004 // 0000-0000-0000-0100#define SCI_ERROR_OVERRUN 0x0008 // 0000-0000-0000-1000#define SCI_IDLE_LINE 0x0010 // 0000-0000-0001-0000#define SCI_RCVR_ACTIVE 0x0020 // 0000-0000-0010-0000#define SCI_RCVR_READY 0x0040 // 0000-0000-0100-0000#define SCI_XMTR_IDLE 0x0080 // 0000-0000-1000-0000#define SCI_CLEAR_RX_INT 0xFFBF // 1111-1111-1011-1111#define SCI_XMTR_READY 0x0100 // 0000-0001-0000-0000#define SCI_CLEAR_TDRE 0xFEFF // 1111-1110-1111-1111#define SCI_XMTR_AVAILABLE 0x0180 // 0000-0001-1000-0000 /******************************************************************************* Function prototypes*******************************************************************************/#ifdef __cplusplusextern "C" {#endif// look at console_open to see how this is calledconst rtems_termios_callbacks * SciGetTermiosHandlers( signed32 polled );/* SCI interrupt *///rtems_isr SciIsr( rtems_vector_number vector );//signed32 SciOpenPolled ( signed32 major, signed32 minor, void *arg );//signed32 SciOpenInterrupt ( signed32 major, signed32 minor, void *arg );//signed32 SciClose ( signed32 major, signed32 minor, void *arg );//signed32 SciWritePolled ( signed32 minor, const char *buf, signed32 len );//signed32 SciWriteInterrupt( signed32 minor, const char *buf, signed32 len );//signed32 SciReadPolled ( signed32 minor );//signed32 SciSetAttributes ( signed32 minor, const struct termios *t );#ifdef __cplusplus}#endif#endif // _sci_h_⌨️ 快捷键说明
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