RTEMS
6.3
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bsps
m68k
mrm332
console
sci.h
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/****************************************************************************
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* File: sci.h
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*
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* Desc: This is the include file for the serial communications interface.
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*
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* Note: See bsp.h,confdefs.h,system.h for installing drivers into RTEMS.
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*
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****************************************************************************/
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#ifndef _sci_h_
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#define _sci_h_
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/*******************************************************************************
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IOCTL commands for the sci driver.
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I'm still working on these...
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*******************************************************************************/
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#define SCI_IOCTL_PARITY_NONE 0x00
/* no parity bit after the data bits */
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#define SCI_IOCTL_PARITY_ODD 0x01
/* parity bit added after data bits */
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#define SCI_IOCTL_PARITY_EVEN 0x02
/* parity bit added after data bits */
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#define SCI_IOCTL_PARITY_MARK 0x03
/* parity bit is lo, -12 volts, logical 1 */
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#define SCI_IOCTL_PARITY_SPACE 0x04
/* parity bit is hi, +12 volts, logical 0 */
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#define SCI_IOCTL_PARITY_FORCED_ON 0x03
/* parity bit is forced hi or lo */
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#define SCI_IOCTL_PARITY_FORCED_OFF 0x04
/* parity bit is forced hi or lo */
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#define SCI_IOCTL_BAUD_RATE 0x20
/* set the baud rate, arg is baud */
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#define SCI_IOCTL_DATA_BITS 0x30
/* set the data bits, arg is # bits */
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#define SCI_IOCTL_STOP_BITS_1 0x40
/* 1 stop bit after char frame */
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#define SCI_IOCTL_STOP_BITS_2 0x41
/* 2 stop bit after char frame */
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#define SCI_IOCTL_MODE_NORMAL 0x50
/* normal operating mode */
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#define SCI_IOCTL_MODE_LOOP 0x51
/* internal loopback mode */
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#define SCI_IOCTL_FLOW_NONE 0x60
/* no flow control */
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#define SCI_IOCTL_FLOW_RTS_CTS 0x61
/* hardware flow control */
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#define SCI_IOCTL_SEND_BREAK 0x70
/* send an rs-232 break */
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#define SCI_IOCTL_MODE_1200 0x80
/* 1200,n,8,1 download mode */
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#define SCI_IOCTL_MODE_9600 0x81
/* 9600,n,8,1 download mode */
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#define SCI_IOCTL_MODE_9_BIT 0x82
/* 9600,forced,8,1 command mode */
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/*******************************************************************************
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SCI Registers
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*******************************************************************************/
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/* SCI Control Register 0 (SCCR0) $FFFC08
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8 4 2 1 - 8 4 2 1 - 8 4 2 1 - 8 4 2 1
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^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
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| | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | +----- 0 baud rate divisor
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| | | | | | | | | | | | | | +------- 1 baud rate divisor
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| | | | | | | | | | | | | +--------- 2 baud rate divisor
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| | | | | | | | | | | | +----------- 3 baud rate divisor
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| | | | | | | | | | | |
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| | | | | | | | | | | +--------------- 4 baud rate divisor
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| | | | | | | | | | +----------------- 5 baud rate divisor
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| | | | | | | | | +------------------- 6 baud rate divisor
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| | | | | | | | +--------------------- 7 baud rate divisor
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| | | | | | | |
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| | | | | | | +------------------------- 8 baud rate divisor
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| | | | | | +--------------------------- 9 baud rate divisor
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| | | | | +----------------------------- 10 baud rate divisor
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| | | | +------------------------------- 11 baud rate divisor
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| | | |
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| | | +----------------------------------- 12 baud rate divisor
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| | +------------------------------------- 13 unused
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| +--------------------------------------- 14 unused
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+----------------------------------------- 15 unused
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0 0 0 0 - 0 0 0 0 - 0 0 0 0 - 0 1 0 0 reset value - (64k baud?)
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*/
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#define SCI_BAUD_57_6K 9
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#define SCI_BAUD_38_4K 14
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#define SCI_BAUD_19_2K 27
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#define SCI_BAUD_9600 55
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#define SCI_BAUD_4800 109
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#define SCI_BAUD_2400 218
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#define SCI_BAUD_1200 437
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/* SCI Control Register 1 (SCCR1) $FFFC0A
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8 4 2 1 - 8 4 2 1 - 8 4 2 1 - 8 4 2 1
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^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
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| | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | +----- 0 send a break
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| | | | | | | | | | | | | | +------- 1 rcvr wakeup mode
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| | | | | | | | | | | | | +--------- 2 rcvr enable
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| | | | | | | | | | | | +----------- 3 xmtr enable
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| | | | | | | | | | | |
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| | | | | | | | | | | +--------------- 4 idle line intr enable
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| | | | | | | | | | +----------------- 5 rcvr intr enable
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| | | | | | | | | +------------------- 6 xmit complete intr enable
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| | | | | | | | +--------------------- 7 xmtr intr enable
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| | | | | | | |
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| | | | | | | +------------------------- 8 wakeup on address mark
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| | | | | | +--------------------------- 9 mode 1=9 bits, 0=8 bits
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| | | | | +----------------------------- 10 parity enable 1=on, 0=off
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| | | | +------------------------------- 11 parity type 1=odd, 0=even
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| | | |
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| | | +----------------------------------- 12 idle line select
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| | +------------------------------------- 13 wired-or mode
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| +--------------------------------------- 14 loop mode
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+----------------------------------------- 15 unused
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0 0 0 0 - 0 0 0 0 - 0 0 0 0 - 0 0 0 0 reset value
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*/
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#define SCI_SEND_BREAK 0x0001
/* 0000-0000-0000-0001 */
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#define SCI_RCVR_WAKEUP 0x0002
/* 0000-0000-0000-0010 */
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#define SCI_ENABLE_RCVR 0x0004
/* 0000-0000-0000-0100 */
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#define SCI_ENABLE_XMTR 0x0008
/* 0000-0000-0000-1000 */
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#define SCI_DISABLE_RCVR 0xFFFB
/* 1111-1111-1111-1011 */
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#define SCI_DISABLE_XMTR 0xFFF7
/* 1111-1111-1111-0111 */
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#define SCI_ENABLE_INT_IDLE 0x0010
/* 0000-0000-0001-0000 */
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#define SCI_ENABLE_INT_RX 0x0020
/* 0000-0000-0010-0000 */
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#define SCI_ENABLE_INT_TX_DONE 0x0040
/* 0000-0000-0100-0000 */
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#define SCI_ENABLE_INT_TX 0x0080
/* 0000-0000-1000-0000 */
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#define SCI_DISABLE_INT_ALL 0xFF00
/* 1111-1111-0000-0000 ??? */
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#define SCI_DISABLE_INT_RX 0xFFDF
/* 1111-1111-1101-1111 */
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#define SCI_CLEAR_RX_INT 0xFFBF
/* 1111-1111-1011-1111 */
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#define SCI_DISABLE_INT_TX 0xFF7F
/* 1111-1111-0111-1111 */
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#define SCI_CLEAR_TDRE 0xFEFF
/* 1111-1110-1111-1111 */
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#define SCI_RCVR_WAKE_ON_MARK 0x0100
/* 0000-0001-0000-0000 */
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#define SCI_9_DATA_BITS 0x0200
/* 0000-0010-0000-0000 */
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#define SCI_PARITY_ENABLE 0x0400
/* 0000-0100-0000-0000 */
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#define SCI_PARITY_ODD 0x0800
/* 0000-1000-0000-0000 */
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#define SCI_RCVR_WAKE_ON_IDLE 0xFEFF
/* 1111-1110-1111-1111 */
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#define SCI_8_DATA_BITS 0xFDFF
/* 1111-1101-1111-1111 */
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#define SCI_PARITY_DISABLE 0xFBFF
/* 1111-1011-1111-1111 */
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#define SCI_PARITY_EVEN 0xF7FF
/* 1111-0111-1111-1111 */
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#define SCI_PARITY_NONE 0xF3FF
/* 1111-0011-1111-1111 */
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#define SCI_IDLE_LINE_LONG 0x1000
/* 0001-0000-0000-0000 */
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#define SCI_TXD_OPEN_DRAIN 0x2000
/* 0010-0000-0000-0000 */
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#define SCI_LOOPBACK_MODE 0x4000
/* 0100-0000-0000-0000 */
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#define SCI_SCCR1_UNUSED 0x8000
/* 1000-0000-0000-0000 */
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/* SCI Status Register (SCSR) $FFFC0C
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8 4 2 1 - 8 4 2 1 - 8 4 2 1 - 8 4 2 1
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^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
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| | | | | | | | | | | | | | | |
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| | | | | | | | | | | | | | | +----- 0 PF - parity error
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| | | | | | | | | | | | | | +------- 1 FE - framing error
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| | | | | | | | | | | | | +--------- 2 NF - noise flag
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| | | | | | | | | | | | +----------- 3 OR - overrun flag
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| | | | | | | | | | | |
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| | | | | | | | | | | +--------------- 4 IDLE - idle line detected
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| | | | | | | | | | +----------------- 5 RAF - rcvr active flag
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| | | | | | | | | +------------------- 6 RDRF - rcv data reg full
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| | | | | | | | +--------------------- 7 TC - xmt complete flag
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| | | | | | | |
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| | | | | | | +------------------------- 8 TDRE - xmt data reg empty
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| | | | | | +--------------------------- 9 always zero
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| | | | | +----------------------------- 10 always zero
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| | | | +------------------------------- 11 always zero
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| | | |
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| | | +----------------------------------- 12 always zero
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| | +------------------------------------- 13 always zero
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| +--------------------------------------- 14 always zero
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+----------------------------------------- 15 always zero
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0 0 0 0 - 0 0 0 1 - 1 0 0 0 - 0 0 0 0 reset value
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*/
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#define SCI_ERROR_PARITY 0x0001
/* 0000-0000-0000-0001 */
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#define SCI_ERROR_FRAMING 0x0002
/* 0000-0000-0000-0010 */
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#define SCI_ERROR_NOISE 0x0004
/* 0000-0000-0000-0100 */
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#define SCI_ERROR_OVERRUN 0x0008
/* 0000-0000-0000-1000 */
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#define SCI_IDLE_LINE 0x0010
/* 0000-0000-0001-0000 */
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#define SCI_RCVR_ACTIVE 0x0020
/* 0000-0000-0010-0000 */
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#define SCI_RCVR_READY 0x0040
/* 0000-0000-0100-0000 */
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#define SCI_XMTR_IDLE 0x0080
/* 0000-0000-1000-0000 */
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#define SCI_CLEAR_RX_INT 0xFFBF
/* 1111-1111-1011-1111 */
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#define SCI_XMTR_READY 0x0100
/* 0000-0001-0000-0000 */
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#define SCI_CLEAR_TDRE 0xFEFF
/* 1111-1110-1111-1111 */
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#define SCI_XMTR_AVAILABLE 0x0180
/* 0000-0001-1000-0000 */
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/*******************************************************************************
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Function prototypes
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*******************************************************************************/
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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/* look at console_open to see how this is called */
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const
rtems_termios_callbacks
* SciGetTermiosHandlers( int32_t polled );
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/* SCI interrupt */
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/*rtems_isr SciIsr( rtems_vector_number vector ); */
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/*int32_t SciOpenPolled ( int32_t major, int32_t minor, void *arg ); */
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/*int32_t SciOpenInterrupt ( int32_t major, int32_t minor, void *arg ); */
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/*int32_t SciClose ( int32_t major, int32_t minor, void *arg ); */
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/*int32_t SciWritePolled ( int32_t minor, const char *buf, int32_t len ); */
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/*int32_t SciWriteInterrupt( int32_t minor, const char *buf, int32_t len ); */
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/*int32_t SciReadPolled ( int32_t minor ); */
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/*int32_t SciSetAttributes ( int32_t minor, const struct termios *t ); */
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#ifdef __cplusplus
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}
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#endif
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#endif
/* _sci_h_ */
rtems_termios_callbacks
Definition
libio.h:1986
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