/* $FreeBSD$ */ /* $NecBSD: ct_machdep.h,v 1.4.12.2 2001/06/20 06:13:34 honda Exp $ */ /* $NetBSD$ */ /*- * [NetBSD for NEC PC-98 series] * Copyright (c) 1995, 1996, 1997, 1998, 1999, 2000, 2001 * NetBSD/pc98 porting staff. All rights reserved. * Copyright (c) 1995, 1996, 1997, 1998, 1999, 2000, 2001 * Naofumi HONDA. 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. * 3. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. */ #ifndef _CT_MACHDEP_H_ #define _CT_MACHDEP_H_ #include "opt_ct.h" /* * Principal rules: * 1) do not use bus_space_write/read_X directly in ct.c. * 2) do not use port offset defs directly in ct.c. */ /* special weight if requried */ #ifdef CT_BUS_WEIGHT #undef CT_BUS_WEIGHT #define CT_BUS_WEIGHT(chp) \ { \ if ((chp)->ch_bus_weight != NULL) \ (chp)->ch_bus_weight((chp)); \ } #else /* !CT_BUS_WEIGHT */ #define CT_BUS_WEIGHT(chp) #endif /* !CT_BUS_WEIGHT */ /* port offset */ #ifndef CT_USE_RELOCATE_OFFSET #define addr_port 0 #define stat_port 0 #define ctrl_port 2 #define cmd_port 4 #else /* CT_USE_RELOCATE_OFFSET */ #define addr_port ((chp)->ch_offset[0]) #define stat_port ((chp)->ch_offset[1]) #define ctrl_port ((chp)->ch_offset[2]) #define cmd_port ((chp)->ch_offset[3]) #endif /* CT_USE_RELOCATE_OFFSET */ /* * All port accesses primitive methods */ static __inline u_int8_t ct_stat_read_1 (struct ct_bus_access_handle *); static __inline u_int8_t ct_cmdp_read_1 (struct ct_bus_access_handle *); static __inline void ct_cmdp_write_1 (struct ct_bus_access_handle *, u_int8_t); static __inline u_int8_t ct_cr_read_1 (struct ct_bus_access_handle *, bus_addr_t); static __inline void ct_cr_write_1 (struct ct_bus_access_handle *, bus_addr_t, u_int8_t); static __inline void ct_write_cmds (struct ct_bus_access_handle *, u_int8_t *, int); static __inline u_int cthw_get_count (struct ct_bus_access_handle *); static __inline void cthw_set_count (struct ct_bus_access_handle *, u_int); static __inline u_int8_t ct_stat_read_1(struct ct_bus_access_handle *chp) { u_int8_t regv; regv = bus_read_1(chp->ch_io, stat_port); CT_BUS_WEIGHT(chp) return regv; } static __inline void cthw_set_count(struct ct_bus_access_handle *chp, u_int count) { bus_write_1(chp->ch_io, addr_port, wd3s_cnt); CT_BUS_WEIGHT(chp) bus_write_1(chp->ch_io, ctrl_port, count >> 16); CT_BUS_WEIGHT(chp) bus_write_1(chp->ch_io, ctrl_port, count >> 8); CT_BUS_WEIGHT(chp) bus_write_1(chp->ch_io, ctrl_port, count); CT_BUS_WEIGHT(chp) } static __inline u_int cthw_get_count(struct ct_bus_access_handle *chp) { u_int count; bus_write_1(chp->ch_io, addr_port, wd3s_cnt); CT_BUS_WEIGHT(chp) count = (((u_int) bus_read_1(chp->ch_io, ctrl_port)) << 16); CT_BUS_WEIGHT(chp) count += (((u_int) bus_read_1(chp->ch_io, ctrl_port)) << 8); CT_BUS_WEIGHT(chp) count += ((u_int) bus_read_1(chp->ch_io, ctrl_port)); CT_BUS_WEIGHT(chp) return count; } static __inline void ct_write_cmds(struct ct_bus_access_handle *chp, u_int8_t *cmd, int len) { int i; bus_write_1(chp->ch_io, addr_port, wd3s_cdb); CT_BUS_WEIGHT(chp) for (i = 0; i < len; i ++) { bus_write_1(chp->ch_io, ctrl_port, cmd[i]); CT_BUS_WEIGHT(chp) } } static __inline u_int8_t ct_cr_read_1(struct ct_bus_access_handle *chp, bus_addr_t offs) { u_int8_t regv; bus_write_1(chp->ch_io, addr_port, offs); CT_BUS_WEIGHT(chp) regv = bus_read_1(chp->ch_io, ctrl_port); CT_BUS_WEIGHT(chp) return regv; } static __inline void ct_cr_write_1(struct ct_bus_access_handle *chp, bus_addr_t offs, u_int8_t val) { bus_write_1(chp->ch_io, addr_port, offs); CT_BUS_WEIGHT(chp) bus_write_1(chp->ch_io, ctrl_port, val); CT_BUS_WEIGHT(chp) } static __inline u_int8_t ct_cmdp_read_1(struct ct_bus_access_handle *chp) { u_int8_t regv; regv = bus_read_1(chp->ch_io, cmd_port); CT_BUS_WEIGHT(chp) return regv; } static __inline void ct_cmdp_write_1(struct ct_bus_access_handle *chp, u_int8_t val) { bus_write_1(chp->ch_io, cmd_port, val); CT_BUS_WEIGHT(chp) } #endif /* !_CT_MACHDEP_H_ */