/* $NetBSD: bus.h,v 1.4 1996/06/11 21:16:21 cgd Exp $ */ /* * Copyright (c) 1996 Carnegie-Mellon University. * All rights reserved. * * Author: Chris G. Demetriou * * Permission to use, copy, modify and distribute this software and * its documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie the * rights to redistribute these changes. */ #ifndef _ALPHA_BUS_H_ #define _ALPHA_BUS_H_ /* * I/O addresses (in bus space) */ typedef u_long bus_io_addr_t; typedef u_long bus_io_size_t; /* * Memory addresses (in bus space) */ typedef u_long bus_mem_addr_t; typedef u_long bus_mem_size_t; /* * Access methods for bus resources, I/O space, and memory space. */ typedef struct alpha_bus_chipset *bus_chipset_tag_t; typedef u_long bus_io_handle_t; typedef u_long bus_mem_handle_t; struct alpha_bus_chipset { /* I/O-space cookie */ void *bc_i_v; /* I/O-space control functions */ int (*bc_i_map) __P((void *v, bus_io_addr_t port, bus_io_size_t size, bus_io_handle_t *iohp)); void (*bc_i_unmap) __P((void *v, bus_io_handle_t ioh, bus_io_size_t size)); int (*bc_i_subregion) __P((void *v, bus_io_handle_t ioh, bus_io_size_t offset, bus_io_size_t size, bus_io_handle_t *nioh)); /* I/O-space read functions */ u_int8_t (*bc_ir1) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off)); u_int16_t (*bc_ir2) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off)); u_int32_t (*bc_ir4) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off)); u_int64_t (*bc_ir8) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off)); /* I/O-space read-multiple functions */ void (*bc_irm1) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off, u_int8_t *addr, bus_io_size_t count)); void (*bc_irm2) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off, u_int16_t *addr, bus_io_size_t count)); void (*bc_irm4) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off, u_int32_t *addr, bus_io_size_t count)); void (*bc_irm8) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off, u_int64_t *addr, bus_io_size_t count)); /* I/O-space write functions */ void (*bc_iw1) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off, u_int8_t val)); void (*bc_iw2) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off, u_int16_t val)); void (*bc_iw4) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off, u_int32_t val)); void (*bc_iw8) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off, u_int64_t val)); /* I/O-space write-multiple functions */ void (*bc_iwm1) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off, const u_int8_t *addr, bus_io_size_t count)); void (*bc_iwm2) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off, const u_int16_t *addr, bus_io_size_t count)); void (*bc_iwm4) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off, const u_int32_t *addr, bus_io_size_t count)); void (*bc_iwm8) __P((void *v, bus_io_handle_t ioh, bus_io_size_t off, const u_int64_t *addr, bus_io_size_t count)); /* Mem-space cookie */ void *bc_m_v; /* Mem-space control functions */ int (*bc_m_map) __P((void *v, bus_mem_addr_t buspa, bus_mem_size_t size, int cacheable, bus_mem_handle_t *mhp)); void (*bc_m_unmap) __P((void *v, bus_mem_handle_t mh, bus_mem_size_t size)); int (*bc_m_subregion) __P((void *v, bus_mem_handle_t memh, bus_mem_size_t offset, bus_mem_size_t size, bus_mem_handle_t *nmemh)); /* Mem-space read functions */ u_int8_t (*bc_mr1) __P((void *v, bus_mem_handle_t memh, bus_mem_size_t off)); u_int16_t (*bc_mr2) __P((void *v, bus_mem_handle_t memh, bus_mem_size_t off)); u_int32_t (*bc_mr4) __P((void *v, bus_mem_handle_t memh, bus_mem_size_t off)); u_int64_t (*bc_mr8) __P((void *v, bus_mem_handle_t memh, bus_mem_size_t off)); /* Mem-space write functions */ void (*bc_mw1) __P((void *v, bus_mem_handle_t memh, bus_mem_size_t off, u_int8_t val)); void (*bc_mw2) __P((void *v, bus_mem_handle_t memh, bus_mem_size_t off, u_int16_t val)); void (*bc_mw4) __P((void *v, bus_mem_handle_t memh, bus_mem_size_t off, u_int32_t val)); void (*bc_mw8) __P((void *v, bus_mem_handle_t memh, bus_mem_size_t off, u_int64_t val)); /* XXX THIS DOES NOT YET BELONG HERE */ vm_offset_t (*bc_XXX_dmamap) __P((void *addr)); }; #define __bc_CONCAT(A,B) __CONCAT(A,B) #define __bc_ABC(A,B,C) __bc_CONCAT(A,__bc_CONCAT(B,C)) #define __bc_ABCD(A,B,C,D) __bc_CONCAT(__bc_ABC(A,B,C),D) #define __bc_rd(t, h, o, sz, sp) \ (*(t)->__bc_ABCD(bc_,sp,r,sz))((t)->__bc_ABC(bc_,sp,_v), h, o) #define __bc_wr(t, h, o, v, sz, sp) \ (*(t)->__bc_ABCD(bc_,sp,w,sz))((t)->__bc_ABC(bc_,sp,_v), h, o, v) #define bus_io_map(t, port, size, iohp) \ (*(t)->bc_i_map)((t)->bc_i_v, (port), (size), (iohp)) #define bus_io_unmap(t, ioh, size) \ (*(t)->bc_i_unmap)((t)->bc_i_v, (ioh), (size)) #define bus_io_subregion(t, ioh, offset, size, nioh) \ (*(t)->bc_i_unmap)((t)->bc_i_v, (ioh), (offset), (size), (nioh)) #define __bc_io_multi(t, h, o, a, s, dir, sz) \ (*(t)->__bc_ABCD(bc_i,dir,m,sz))((t)->bc_i_v, h, o, a, s) #define bus_io_read_1(t, h, o) __bc_rd((t),(h),(o),1,i) #define bus_io_read_2(t, h, o) __bc_rd((t),(h),(o),2,i) #define bus_io_read_4(t, h, o) __bc_rd((t),(h),(o),4,i) #define bus_io_read_8(t, h, o) __bc_rd((t),(h),(o),8,i) #define bus_io_read_multi_1(t, h, o, a, s) \ __bc_io_multi((t),(h),(o),(a),(s),r,1) #define bus_io_read_multi_2(t, h, o, a, s) \ __bc_io_multi((t),(h),(o),(a),(s),r,2) #define bus_io_read_multi_4(t, h, o, a, s) \ __bc_io_multi((t),(h),(o),(a),(s),r,4) #define bus_io_read_multi_8(t, h, o, a, s) \ __bc_io_multi((t),(h),(o),(a),(s),r,8) #define bus_io_write_1(t, h, o, v) __bc_wr((t),(h),(o),(v),1,i) #define bus_io_write_2(t, h, o, v) __bc_wr((t),(h),(o),(v),2,i) #define bus_io_write_4(t, h, o, v) __bc_wr((t),(h),(o),(v),4,i) #define bus_io_write_8(t, h, o, v) __bc_wr((t),(h),(o),(v),8,i) #define bus_io_write_multi_1(t, h, o, a, s) \ __bc_io_multi((t),(h),(o),(a),(s),w,1) #define bus_io_write_multi_2(t, h, o, a, s) \ __bc_io_multi((t),(h),(o),(a),(s),w,2) #define bus_io_write_multi_4(t, h, o, a, s) \ __bc_io_multi((t),(h),(o),(a),(s),w,4) #define bus_io_write_multi_8(t, h, o, a, s) \ __bc_io_multi((t),(h),(o),(a),(s),w,8) #define bus_mem_map(t, bpa, size, cacheable, mhp) \ (*(t)->bc_m_map)((t)->bc_m_v, (bpa), (size), (cacheable), (mhp)) #define bus_mem_unmap(t, memh, size) \ (*(t)->bc_m_unmap)((t)->bc_m_v, (memh), (size)) #define bus_mem_subregion(t, memh, offset, size, nmemh) \ (*(t)->bc_m_unmap)((t)->bc_i_v, (memh), (offset), (size), (nmemh)) #define bus_mem_read_1(t, h, o) __bc_rd((t),(h),(o),1,m) #define bus_mem_read_2(t, h, o) __bc_rd((t),(h),(o),2,m) #define bus_mem_read_4(t, h, o) __bc_rd((t),(h),(o),4,m) #define bus_mem_read_8(t, h, o) __bc_rd((t),(h),(o),8,m) #define bus_mem_write_1(t, h, o, v) __bc_wr((t),(h),(o),(v),1,m) #define bus_mem_write_2(t, h, o, v) __bc_wr((t),(h),(o),(v),2,m) #define bus_mem_write_4(t, h, o, v) __bc_wr((t),(h),(o),(v),4,m) #define bus_mem_write_8(t, h, o, v) __bc_wr((t),(h),(o),(v),8,m) /* XXX THIS DOES NOT BELONG HERE YET. */ #define __alpha_bus_XXX_dmamap(t, va) (*(t)->bc_XXX_dmamap)((va)) #endif /* _ALPHA_BUS_H_ */