diff options
Diffstat (limited to 'bsps/m68k/mrm332/console/sci.h')
| -rw-r--r-- | bsps/m68k/mrm332/console/sci.h | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/bsps/m68k/mrm332/console/sci.h b/bsps/m68k/mrm332/console/sci.h new file mode 100644 index 0000000000..93893ecbfc --- /dev/null +++ b/bsps/m68k/mrm332/console/sci.h @@ -0,0 +1,233 @@ +/**************************************************************************** +* 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. +* +****************************************************************************/ + +#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 __cplusplus +extern "C" { +#endif + +/* look at console_open to see how this is called */ + +const rtems_termios_callbacks * SciGetTermiosHandlers( int32_t polled ); + +/* SCI interrupt */ + +/*rtems_isr SciIsr( rtems_vector_number vector ); */ + +/*int32_t SciOpenPolled ( int32_t major, int32_t minor, void *arg ); */ +/*int32_t SciOpenInterrupt ( int32_t major, int32_t minor, void *arg ); */ + +/*int32_t SciClose ( int32_t major, int32_t minor, void *arg ); */ + +/*int32_t SciWritePolled ( int32_t minor, const char *buf, int32_t len ); */ +/*int32_t SciWriteInterrupt( int32_t minor, const char *buf, int32_t len ); */ + +/*int32_t SciReadPolled ( int32_t minor ); */ + +/*int32_t SciSetAttributes ( int32_t minor, const struct termios *t ); */ + +#ifdef __cplusplus +} +#endif + +#endif /* _sci_h_ */ |