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/* $OpenBSD: cyreg.h,v 1.2 1996/11/28 23:27:49 niklas Exp $ */
/* $FreeBSD: cyreg.h,v 1.1 1995/07/05 12:15:51 bde Exp $ */
/*-
* Copyright (c) 1995 Bruce Evans.
* All rights reserved.
*
* Modified by Timo Rossi, 1996
*
* 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.
* 3. Neither the name of the author nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* 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.
*/
/*
* Definitions for Cyclades Cyclom-Y serial boards.
*/
#define CY8_SVCACKR 0x100
#define CY8_SVCACKT 0x200
#define CY8_SVCACKM 0x300
/* twice this in PCI mode (shifed BUSTYPE bits left) */
#define CY_CD1400_MEMSPACING 0x400
/* adjustment value for accessing the last 4 cd1400s on Cyclom-32 */
#define CY32_ADDR_FIX 0xe00
#define CY16_RESET 0x1400
#define CY_CLEAR_INTR 0x1800 /* intr ack address */
#define CY_MAX_CD1400s 8 /* for Cyclom-32 */
/* I/O location for enabling interrupts on PCI Cyclom cards */
#define CY_PCI_INTENA 0x68
#define CY_CLOCK 25000000 /* baud rate clock */
/*
* bustype is actually the shift count for the offset
* ISA card addresses are multiplied by 2 (shifted 1 bit)
* and PCI addresses multiplied by 4 (shifted 2 bits)
*/
#define CY_BUSTYPE_ISA 0
#define CY_BUSTYPE_PCI 1
#define RX_FIFO_THRESHOLD 6
/* Automatic RTS (or actually DTR, the RTS and DTR lines need to be exchanged)
* handshake threshold used if CY_HW_RTS is defined
*/
#define RX_DTR_THRESHOLD 9
/*
* Maximum number of ports per card
*/
#define CY_MAX_PORTS (CD1400_NO_OF_CHANNELS * CY_MAX_CD1400s)
/*
* Port number on card encoded in low 5 bits
* card number in next 2 bits (only space for 4 cards)
* high bit reserved for dialout flag
*/
#define CY_PORT(x) (minor(x) & 0xf)
#define CY_CARD(x) ((minor(x) >> 5) & 3)
#define CY_DIALOUT(x) ((minor(x) & 0x80) != 0)
#define CY_DIALIN(x) (!CY_DIALOUT(x))
/*
* read/write cd1400 registers (when cy_port-structure is available)
*/
#define cd_read_reg(cy,reg) bus_space_read_1(cy->cy_memt, cy->cy_memh, \
cy->cy_chip_offs+(((reg<<1))<<cy->cy_bustype))
#define cd_write_reg(cy,reg,val) bus_space_write_1(cy->cy_memt, cy->cy_memh, \
cy->cy_chip_offs+(((reg<<1))<<cy->cy_bustype), \
(val))
/*
* read/write cd1400 registers (when sc_softc-structure is available)
*/
#define cd_read_reg_sc(sc,chip,reg) bus_space_read_1(sc->sc_memt, \
sc->sc_memh, \
sc->sc_cd1400_offs[chip]+\
(((reg<<1))<<sc->sc_bustype))
#define cd_write_reg_sc(sc,chip,reg,val) bus_space_write_1(sc->sc_memt, \
sc->sc_memh, \
sc->sc_cd1400_offs[chip]+\
(((reg<<1))<<sc->sc_bustype), \
(val))
/*
* ibuf is a simple ring buffer. It is always used two
* bytes at a time (status and data)
*/
#define IBUF_SIZE (2*512)
/* software state for one port */
struct cy_port {
int cy_port_num;
bus_space_tag_t cy_memt;
bus_space_handle_t cy_memh;
int cy_chip_offs;
int cy_bustype;
struct tty *cy_tty;
int cy_openflags;
int cy_fifo_overruns;
int cy_ibuf_overruns;
u_char cy_channel_control; /* last CCR channel control command bits */
u_char cy_carrier_stat; /* copied from MSVR2 */
u_char cy_flags;
u_char *cy_ibuf, *cy_ibuf_end;
u_char *cy_ibuf_rd_ptr, *cy_ibuf_wr_ptr;
#ifdef CY_DEBUG1
int cy_rx_int_count;
int cy_tx_int_count;
int cy_modem_int_count;
int cy_start_count;
#endif /* CY_DEBUG1 */
};
#define CYF_CARRIER_CHANGED 0x01
#define CYF_START_BREAK 0x02
#define CYF_END_BREAK 0x04
#define CYF_STOP 0x08
#define CYF_SEND_NUL 0x10
#define CYF_START 0x20
/* software state for one card */
struct cy_softc {
struct device sc_dev;
void *sc_ih;
bus_space_tag_t sc_memt;
bus_space_handle_t sc_memh;
int sc_bustype;
int sc_nports; /* number of ports on this card */
int sc_cd1400_offs[CY_MAX_CD1400s];
struct cy_port sc_ports[CY_MAX_PORTS];
#ifdef CY_DEBUG1
int sc_poll_count1;
int sc_poll_count2;
#endif
};
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