190 lines
5.8 KiB
C
190 lines
5.8 KiB
C
/* $OpenBSD: cyreg.h,v 1.8 2002/09/14 15:00:02 art Exp $ */
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/* $FreeBSD: cyreg.h,v 1.1 1995/07/05 12:15:51 bde Exp $ */
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/*-
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* Copyright (c) 1995 Bruce Evans.
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* All rights reserved.
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*
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* Modified by Timo Rossi, 1996
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the names of contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _DEV_IC_CYREG_H_
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#define _DEV_IC_CYREG_H_
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#include <sys/timeout.h>
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/*
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* Definitions for Cyclades Cyclom-Y serial boards.
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*/
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#define CY8_SVCACKR 0x100
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#define CY8_SVCACKT 0x200
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#define CY8_SVCACKM 0x300
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/* twice this in PCI mode (shifed BUSTYPE bits left) */
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#define CY_CD1400_MEMSPACING 0x400
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/* adjustment value for accessing the last 4 cd1400s on Cyclom-32 */
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#define CY32_ADDR_FIX 0xe00
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#define CY16_RESET 0x1400
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#define CY_CLEAR_INTR 0x1800 /* intr ack address */
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#define CY_MAX_CD1400s 8 /* for Cyclom-32 */
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/* I/O location for enabling interrupts on PCI Cyclom cards */
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#define CY_PCI_INTENA 0x68
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#define CY_PCI_INTENA_9050 0x4c
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/* Cyclom-Y Custom Register for PLX ID (PCI only) */
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#define CY_PLX_VER 0x3400 /* PLX version */
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#define CY_PLX_9050 0x0b
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#define CY_PLX_9060 0x0c
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#define CY_PLX_9080 0x0d
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#define CY_CLOCK 25000000 /* baud rate clock */
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#define CY_CLOCK_60 60000000 /* baud rate clock for newer cd1400s */
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/*
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* bustype is actually the shift count for the offset
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* ISA card addresses are multiplied by 2 (shifted 1 bit)
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* and PCI addresses multiplied by 4 (shifted 2 bits)
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*/
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#define CY_BUSTYPE_ISA 0
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#define CY_BUSTYPE_PCI 1
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#define RX_FIFO_THRESHOLD 6
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/* Automatic RTS (or actually DTR, the RTS and DTR lines need to be exchanged)
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* handshake threshold used if CY_HW_RTS is defined
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*/
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#define RX_DTR_THRESHOLD 9
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/*
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* Maximum number of ports per card
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*/
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#define CY_MAX_PORTS (CD1400_NO_OF_CHANNELS * CY_MAX_CD1400s)
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/*
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* Port number on card encoded in low 5 bits
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* card number in next 2 bits (only space for 4 cards)
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* high bit reserved for dialout flag
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*/
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#define CY_PORT(x) (minor(x) & 0xf)
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#define CY_CARD(x) ((minor(x) >> 5) & 3)
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#define CY_DIALOUT(x) ((minor(x) & 0x80) != 0)
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#define CY_DIALIN(x) (!CY_DIALOUT(x))
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/*
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* read/write cd1400 registers (when cy_port-structure is available)
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*/
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#define cd_read_reg(cy,reg) bus_space_read_1(cy->cy_memt, cy->cy_memh, \
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cy->cy_chip_offs+(((reg<<1))<<cy->cy_bustype))
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#define cd_write_reg(cy,reg,val) bus_space_write_1(cy->cy_memt, cy->cy_memh, \
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cy->cy_chip_offs+(((reg<<1))<<cy->cy_bustype), \
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(val))
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/*
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* read/write cd1400 registers (when sc_softc-structure is available)
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*/
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#define cd_read_reg_sc(sc,chip,reg) bus_space_read_1(sc->sc_memt, \
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sc->sc_memh, \
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sc->sc_cd1400_offs[chip]+\
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(((reg<<1))<<sc->sc_bustype))
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#define cd_write_reg_sc(sc,chip,reg,val) bus_space_write_1(sc->sc_memt, \
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sc->sc_memh, \
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sc->sc_cd1400_offs[chip]+\
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(((reg<<1))<<sc->sc_bustype), \
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(val))
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/*
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* ibuf is a simple ring buffer. It is always used two
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* bytes at a time (status and data)
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*/
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#define IBUF_SIZE (2*512)
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/* software state for one port */
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struct cy_port {
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int cy_port_num;
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bus_space_tag_t cy_memt;
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bus_space_handle_t cy_memh;
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int cy_chip_offs;
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int cy_bustype;
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int cy_clock;
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struct tty *cy_tty;
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int cy_openflags;
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int cy_fifo_overruns;
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int cy_ibuf_overruns;
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u_char cy_channel_control; /* last CCR channel
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* control command
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* bits */
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u_char cy_carrier_stat; /* copied from MSVR2 */
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u_char cy_flags;
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u_char *cy_ibuf, *cy_ibuf_end;
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u_char *cy_ibuf_rd_ptr, *cy_ibuf_wr_ptr;
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#ifdef CY_DEBUG1
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int cy_rx_int_count;
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int cy_tx_int_count;
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int cy_modem_int_count;
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int cy_start_count;
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#endif /* CY_DEBUG1 */
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};
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#define CYF_CARRIER_CHANGED 0x01
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#define CYF_START_BREAK 0x02
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#define CYF_END_BREAK 0x04
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#define CYF_STOP 0x08
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#define CYF_SEND_NUL 0x10
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#define CYF_START 0x20
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/* software state for one card */
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struct cy_softc {
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struct device sc_dev;
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struct timeout sc_poll_to;
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int sc_events;
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void *sc_ih;
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bus_space_tag_t sc_memt;
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bus_space_handle_t sc_memh;
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int sc_bustype;
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int sc_nports; /* number of ports on this card */
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int sc_cd1400_offs[CY_MAX_CD1400s];
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struct cy_port sc_ports[CY_MAX_PORTS];
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int sc_nr_cd1400s;
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#ifdef CY_DEBUG1
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int sc_poll_count1;
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int sc_poll_count2;
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#endif
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};
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int cy_probe_common(bus_space_tag_t, bus_space_handle_t, int);
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void cy_attach(struct device *, struct device *);
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int cy_intr(void *);
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#endif /* _DEV_IC_CYREG_H_ */
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