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- Cleanup i8251 related defines.

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- Move i8255 related defines into a separate file.
This commit is contained in:
Yoshihiro Takahashi 2008-09-07 04:35:04 +00:00
parent 0f52b1c477
commit ebd2b74476
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=182835
3 changed files with 133 additions and 82 deletions
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103
sys/dev/ic/i8251.h
View File

@ -32,13 +32,25 @@
/*
* modified for PC9801 by M.Ishii
* Kyoto University Microcomputer Club (KMC)
*/
/*
*
* modified for 8251(FIFO) by Seigo TANIMURA <tanimura@FreeBSD.org>
*/
/* define command and status code */
/* i8251 mode register */
#define MOD8251_5BITS 0x00
#define MOD8251_6BITS 0x04
#define MOD8251_7BITS 0x08
#define MOD8251_8BITS 0x0c
#define MOD8251_PENAB 0x10 /* parity enable */
#define MOD8251_PEVEN 0x20 /* parity even */
#define MOD8251_STOP1 0x40 /* 1 stop bit */
#define MOD8251_STOP15 0x80 /* 1.5 stop bit */
#define MOD8251_STOP2 0xc0 /* 2 stop bit */
#define MOD8251_CLKx1 0x01 /* x1 */
#define MOD8251_CLKx16 0x02 /* x16 */
#define MOD8251_CLKx64 0x03 /* x64 */
/* i8251 command register */
#define CMD8251_TxEN 0x01 /* transmit enable */
#define CMD8251_DTR 0x02 /* assert DTR */
#define CMD8251_RxEN 0x04 /* receive enable */
@ -46,59 +58,54 @@
#define CMD8251_ER 0x10 /* error reset */
#define CMD8251_RTS 0x20 /* assert RTS */
#define CMD8251_RESET 0x40 /* internal reset */
#define CMD8251_EH 0x80 /* enter hunt mode (only synchronous mode)*/
#define CMD8251_EH 0x80 /* enter hunt mode */
/* i8251 status register */
#define STS8251_TxRDY 0x01 /* transmit READY */
#define STS8251_RxRDY 0x02 /* data exists in receive buffer */
#define STS8251_TxEMP 0x04 /* transmit buffer EMPTY */
#define STS8251_PE 0x08 /* perity error */
#define STS8251_OE 0x10 /* overrun error */
#define STS8251_FE 0x20 /* framing error */
#define STS8251_BD_SD 0x40 /* break detect (async) / sync detect (sync) */
#define STS8251_BI 0x40 /* break detect */
#define STS8251_DSR 0x80 /* DSR is asserted */
#define STS8251F_TxEMP 0x01 /* transmit buffer EMPTY */
#define STS8251F_TxRDY 0x02 /* transmit READY */
#define STS8251F_RxRDY 0x04 /* data exists in receive buffer */
#define STS8251F_OE 0x10 /* overrun error */
#define STS8251F_PE 0x20 /* perity error */
#define STS8251F_BD_SD 0x80 /* break detect (async) / sync detect (sync) */
/* i8251F line status register */
#define FLSR_TxEMP 0x01 /* transmit buffer EMPTY */
#define FLSR_TxRDY 0x02 /* transmit READY */
#define FLSR_RxRDY 0x04 /* data exists in receive buffer */
#define FLSR_OE 0x10 /* overrun error */
#define FLSR_PE 0x20 /* perity error */
#define FLSR_BI 0x80 /* break detect */
#define INTR8251F_DTCT 0x60 /* FIFO detection mask */
#define INTR8251F_INTRV 0x0e /* interrupt event */
#define INTR8251F_TO 0x0c /* receive timeout */
#define INTR8251F_LSTS 0x06 /* line status */
#define INTR8251F_RxRDY 0x04 /* receive READY */
#define INTR8251F_TxRDY 0x02 /* transmit READY */
#define INTR8251F_ISEV 0x01 /* event occured */
#define INTR8251F_MSTS 0x00 /* modem status */
/* i8251F modem status register */
#define MSR_DCD 0x80 /* Current Data Carrier Detect */
#define MSR_RI 0x40 /* Current Ring Indicator */
#define MSR_DSR 0x20 /* Current Data Set Ready */
#define MSR_CTS 0x10 /* Current Clear to Send */
#define MSR_DDCD 0x08 /* DCD has changed state */
#define MSR_TERI 0x04 /* RI has toggled low to high */
#define MSR_DDSR 0x02 /* DSR has changed state */
#define MSR_DCTS 0x01 /* CTS has changed state */
#define CTRL8251F_ENABLE 0x01 /* enable FIFO */
#define CTRL8251F_RCV_RST 0x02 /* reset receive FIFO */
#define CTRL8251F_XMT_RST 0x04 /* reset transmit FIFO */
/* i8251F interrupt identification register */
#define IIR_FIFO_CK1 0x40
#define IIR_FIFO_CK2 0x20
#define IIR_IMASK 0x0f
#define IIR_RXTOUT 0x0c /* Receiver timeout */
#define IIR_RLS 0x06 /* Line status change */
#define IIR_RXRDY 0x04 /* Receiver ready */
#define IIR_TXRDY 0x02 /* Transmitter ready */
#define IIR_NOPEND 0x01 /* Transmitter ready */
#define IIR_MLSC 0x00 /* Modem status */
#define MOD8251_5BITS 0x00
#define MOD8251_6BITS 0x04
#define MOD8251_7BITS 0x08
#define MOD8251_8BITS 0x0c
#define MOD8251_PDISAB 0x00 /* parity disable */
#define MOD8251_PODD 0x10 /* parity odd */
#define MOD8251_PEVEN 0x30 /* parity even */
#define MOD8251_STOP1 0x40 /* stop bit len = 1bit */
#define MOD8251_STOP2 0xc0 /* stop bit len = 2bit */
#define MOD8251_CLKX16 0x02 /* x16 */
#define MOD8251_CLKX1 0x01 /* x1 */
#define CICSCD_CD 0x20 /* CD */
#define CICSCD_CS 0x40 /* CS */
#define CICSCD_CI 0x80 /* CI */
#define CICSCDF_CS 0x10 /* CS */
#define CICSCDF_DR 0x20 /* DR */
#define CICSCDF_CI 0x40 /* CI */
#define CICSCDF_CD 0x80 /* CD */
/* interrupt mask control */
#define IEN_Rx 0x01
#define IEN_TxEMP 0x02
#define IEN_Tx 0x04
/* i8251F fifo control register */
#define FIFO_ENABLE 0x01 /* Turn the FIFO on */
#define FIFO_RCV_RST 0x02 /* Reset RX FIFO */
#define FIFO_XMT_RST 0x04 /* Reset TX FIFO */
#define FIFO_LSR_EN 0x08
#define FIFO_MSR_EN 0x10
#define FIFO_TRIGGER_1 0x00 /* Trigger RXRDY intr on 1 character */
#define FIFO_TRIGGER_4 0x40 /* ibid 4 */
#define FIFO_TRIGGER_8 0x80 /* ibid 8 */
#define FIFO_TRIGGER_14 0xc0 /* ibid 14 */

46
sys/dev/ic/i8255.h Normal file
View File

@ -0,0 +1,46 @@
/*-
* Copyright (c) 2008 TAKAHASHI Yoshihiro
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _DEV_IC_I8255_H_
#define _DEV_IC_I8255_H_
/*
* modem status via SYSTM_PORTB
*/
#define CICSCD_CD 0x20 /* CD */
#define CICSCD_CS 0x40 /* CS */
#define CICSCD_CI 0x80 /* CI */
/*
* control intrline via SYSTM_PORTC
*/
#define IEN_Rx 0x01
#define IEN_TxEMP 0x02
#define IEN_Tx 0x04
#endif /* _DEV_IC_I8255_H_ */

66
sys/pc98/cbus/sio.c
View File

@ -121,6 +121,7 @@
#include <dev/ic/ns16550.h>
#ifdef PC98
#include <dev/ic/i8251.h>
#include <dev/ic/i8255.h>
#include <dev/ic/rsa.h>
#endif
@ -1784,8 +1785,8 @@ comopen(struct tty *tp, struct cdev *dev)
pc98_msrint_start(dev);
if (com->pc98_8251fifo) {
com->pc98_8251fifo_enable = 1;
outb(I8251F_fcr, CTRL8251F_ENABLE |
CTRL8251F_XMT_RST | CTRL8251F_RCV_RST);
outb(I8251F_fcr,
FIFO_ENABLE | FIFO_XMT_RST | FIFO_RCV_RST);
}
}
#endif
@ -1803,8 +1804,7 @@ comopen(struct tty *tp, struct cdev *dev)
*/
for (i = 0; i < 500; i++) {
sio_setreg(com, com_fifo,
FIFO_RCV_RST | FIFO_XMT_RST
| com->fifo_image);
FIFO_RCV_RST | FIFO_XMT_RST | com->fifo_image);
#ifdef PC98
if (com->pc98_if_type == COM_IF_RSA98III)
outb(com->rsabase + rsa_frr , 0x00);
@ -1955,7 +1955,7 @@ comclose(tp)
#ifdef PC98
if (com->pc98_8251fifo) {
if (com->pc98_8251fifo_enable)
outb(I8251F_fcr, CTRL8251F_XMT_RST | CTRL8251F_RCV_RST);
outb(I8251F_fcr, FIFO_XMT_RST | FIFO_RCV_RST);
com->pc98_8251fifo_enable = 0;
}
#endif
@ -1997,8 +1997,8 @@ siobusycheck(chan)
#ifdef PC98
else if ((IS_8251(com->pc98_if_type) &&
((com->pc98_8251fifo_enable &&
(inb(I8251F_lsr) & (STS8251F_TxRDY | STS8251F_TxEMP))
== (STS8251F_TxRDY | STS8251F_TxEMP)) ||
(inb(I8251F_lsr) & (FLSR_TxRDY | FLSR_TxEMP))
== (FLSR_TxRDY | FLSR_TxEMP)) ||
(!com->pc98_8251fifo_enable &&
(inb(com->sts_port) & (STS8251_TxRDY | STS8251_TxEMP))
== (STS8251_TxRDY | STS8251_TxEMP)))) ||
@ -2298,12 +2298,12 @@ status_read:;
more_intr:
line_status = 0;
if (com->pc98_8251fifo_enable) {
if (tmp & STS8251F_TxRDY) line_status |= LSR_TXRDY;
if (tmp & STS8251F_RxRDY) line_status |= LSR_RXRDY;
if (tmp & STS8251F_TxEMP) line_status |= LSR_TSRE;
if (tmp & STS8251F_PE) line_status |= LSR_PE;
if (tmp & STS8251F_OE) line_status |= LSR_OE;
if (tmp & STS8251F_BD_SD) line_status |= LSR_BI;
if (tmp & FLSR_TxRDY) line_status |= LSR_TXRDY;
if (tmp & FLSR_RxRDY) line_status |= LSR_RXRDY;
if (tmp & FLSR_TxEMP) line_status |= LSR_TSRE;
if (tmp & FLSR_PE) line_status |= LSR_PE;
if (tmp & FLSR_OE) line_status |= LSR_OE;
if (tmp & FLSR_BI) line_status |= LSR_BI;
} else {
if (tmp & STS8251_TxRDY) line_status |= LSR_TXRDY;
if (tmp & STS8251_RxRDY) line_status |= LSR_RXRDY;
@ -2311,7 +2311,7 @@ status_read:;
if (tmp & STS8251_PE) line_status |= LSR_PE;
if (tmp & STS8251_OE) line_status |= LSR_OE;
if (tmp & STS8251_FE) line_status |= LSR_FE;
if (tmp & STS8251_BD_SD) line_status |= LSR_BI;
if (tmp & STS8251_BI) line_status |= LSR_BI;
}
} else {
#endif /* PC98 */
@ -2345,15 +2345,15 @@ status_read:;
if (IS_8251(com->pc98_if_type)) {
if (com->pc98_8251fifo_enable) {
recv_data = inb(I8251F_data);
if (tmp & (STS8251F_PE | STS8251F_OE |
STS8251F_BD_SD)) {
if (tmp &
(FLSR_PE | FLSR_OE | FLSR_BI)) {
pc98_i8251_or_cmd(com, CMD8251_ER);
recv_data = 0;
}
} else {
recv_data = inb(com->data_port);
if (tmp & (STS8251_PE | STS8251_OE |
STS8251_FE | STS8251_BD_SD)) {
STS8251_FE | STS8251_BI)) {
pc98_i8251_or_cmd(com, CMD8251_ER);
recv_data = 0;
}
@ -2626,7 +2626,7 @@ if (com->iptr - com->ibuf == 8)
}
if (IS_8251(com->pc98_if_type)) {
if (com->pc98_8251fifo_enable) {
if ((tmp = inb(I8251F_lsr)) & STS8251F_RxRDY)
if ((tmp = inb(I8251F_lsr)) & FLSR_RxRDY)
goto more_intr;
} else {
if ((tmp = inb(com->sts_port)) & STS8251_RxRDY)
@ -3874,10 +3874,10 @@ pc98_get_modem_status(struct com_s *com)
int stat2;
stat2 = inb(I8251F_msr);
if ( stat2 & CICSCDF_CD ) msr |= TIOCM_CAR;
if ( stat2 & CICSCDF_CI ) msr |= TIOCM_RI;
if ( stat2 & CICSCDF_DR ) msr |= TIOCM_DSR;
if ( stat2 & CICSCDF_CS ) msr |= TIOCM_CTS;
if ( stat2 & MSR_DCD ) msr |= TIOCM_CAR;
if ( stat2 & MSR_RI ) msr |= TIOCM_RI;
if ( stat2 & MSR_DSR ) msr |= TIOCM_DSR;
if ( stat2 & MSR_CTS ) msr |= TIOCM_CTS;
#if COM_CARRIER_DETECT_EMULATE
if ( msr & (TIOCM_DSR|TIOCM_CTS) ) {
msr |= TIOCM_CAR;
@ -4005,7 +4005,7 @@ pc98_i8251_clear_cmd(struct com_s *com, int x)
outb(com->cmd_port, tmp);
com->pc98_prev_siocmd = tmp & ~(CMD8251_ER|CMD8251_RESET|CMD8251_EH);
if (com->pc98_8251fifo_enable)
outb(I8251F_fcr, CTRL8251F_ENABLE);
outb(I8251F_fcr, FIFO_ENABLE);
COM_INT_ENABLE
}
@ -4021,7 +4021,7 @@ pc98_i8251_or_cmd(struct com_s *com, int x)
outb(com->cmd_port, tmp);
com->pc98_prev_siocmd = tmp & ~(CMD8251_ER|CMD8251_RESET|CMD8251_EH);
if (com->pc98_8251fifo_enable)
outb(I8251F_fcr, CTRL8251F_ENABLE);
outb(I8251F_fcr, FIFO_ENABLE);
COM_INT_ENABLE
}
@ -4037,7 +4037,7 @@ pc98_i8251_set_cmd(struct com_s *com, int x)
outb(com->cmd_port, tmp);
com->pc98_prev_siocmd = tmp & ~(CMD8251_ER|CMD8251_RESET|CMD8251_EH);
if (com->pc98_8251fifo_enable)
outb(I8251F_fcr, CTRL8251F_ENABLE);
outb(I8251F_fcr, FIFO_ENABLE);
COM_INT_ENABLE
}
@ -4053,7 +4053,7 @@ pc98_i8251_clear_or_cmd(struct com_s *com, int clr, int x)
outb(com->cmd_port, tmp);
com->pc98_prev_siocmd = tmp & ~(CMD8251_ER|CMD8251_RESET|CMD8251_EH);
if (com->pc98_8251fifo_enable)
outb(I8251F_fcr, CTRL8251F_ENABLE);
outb(I8251F_fcr, FIFO_ENABLE);
COM_INT_ENABLE
}
@ -4088,8 +4088,7 @@ pc98_i8251_reset(struct com_s *com, int mode, int command)
pc98_i8251_set_cmd( com, (command|CMD8251_ER) );
DELAY(10);
if (com->pc98_8251fifo_enable)
outb(I8251F_fcr, CTRL8251F_ENABLE |
CTRL8251F_XMT_RST | CTRL8251F_RCV_RST);
outb(I8251F_fcr, FIFO_ENABLE | FIFO_XMT_RST | FIFO_RCV_RST);
}
static void
@ -4131,11 +4130,10 @@ com_cflag_and_speed_set( struct com_s *com, int cflag, int speed)
}
if ( cflag&PARENB ) {
if ( cflag&PARODD )
cfcr |= MOD8251_PODD;
cfcr |= MOD8251_PENAB;
else
cfcr |= MOD8251_PEVEN;
} else
cfcr |= MOD8251_PDISAB;
cfcr |= MOD8251_PENAB | MOD8251_PEVEN;
}
if ( cflag&CSTOPB )
cfcr |= MOD8251_STOP2;
@ -4143,9 +4141,9 @@ com_cflag_and_speed_set( struct com_s *com, int cflag, int speed)
cfcr |= MOD8251_STOP1;
if ( count & 0x10000 )
cfcr |= MOD8251_CLKX1;
cfcr |= MOD8251_CLKx1;
else
cfcr |= MOD8251_CLKX16;
cfcr |= MOD8251_CLKx16;
while (!((tmp = inb(com->sts_port)) & STS8251_TxEMP))
;