Current Path : /sys/mips/atheros/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/mips/atheros/ar71xx_bus_space_reversed.c |
/*- * Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org> * 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 unmodified, 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. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD: release/9.1.0/sys/mips/atheros/ar71xx_bus_space_reversed.c 202175 2010-01-12 21:36:08Z imp $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/bus.h> #include <machine/bus.h> #include <mips/atheros/ar71xx_bus_space_reversed.h> static bs_r_1_proto(reversed); static bs_r_2_proto(reversed); static bs_w_1_proto(reversed); static bs_w_2_proto(reversed); /* * Bus space that handles offsets in word for 1/2 bytes read/write access. * Byte order of values is handled by device drivers itself. */ static struct bus_space bus_space_reversed = { /* cookie */ (void *) 0, /* mapping/unmapping */ generic_bs_map, generic_bs_unmap, generic_bs_subregion, /* allocation/deallocation */ NULL, NULL, /* barrier */ generic_bs_barrier, /* read (single) */ reversed_bs_r_1, reversed_bs_r_2, generic_bs_r_4, NULL, /* read multiple */ generic_bs_rm_1, generic_bs_rm_2, generic_bs_rm_4, NULL, /* read region */ generic_bs_rr_1, generic_bs_rr_2, generic_bs_rr_4, NULL, /* write (single) */ reversed_bs_w_1, reversed_bs_w_2, generic_bs_w_4, NULL, /* write multiple */ generic_bs_wm_1, generic_bs_wm_2, generic_bs_wm_4, NULL, /* write region */ NULL, generic_bs_wr_2, generic_bs_wr_4, NULL, /* set multiple */ NULL, NULL, NULL, NULL, /* set region */ NULL, generic_bs_sr_2, generic_bs_sr_4, NULL, /* copy */ NULL, generic_bs_c_2, NULL, NULL, /* read (single) stream */ generic_bs_r_1, generic_bs_r_2, generic_bs_r_4, NULL, /* read multiple stream */ generic_bs_rm_1, generic_bs_rm_2, generic_bs_rm_4, NULL, /* read region stream */ generic_bs_rr_1, generic_bs_rr_2, generic_bs_rr_4, NULL, /* write (single) stream */ generic_bs_w_1, generic_bs_w_2, generic_bs_w_4, NULL, /* write multiple stream */ generic_bs_wm_1, generic_bs_wm_2, generic_bs_wm_4, NULL, /* write region stream */ NULL, generic_bs_wr_2, generic_bs_wr_4, NULL, }; bus_space_tag_t ar71xx_bus_space_reversed = &bus_space_reversed; static uint8_t reversed_bs_r_1(void *t, bus_space_handle_t h, bus_size_t o) { return readb(h + (o &~ 3) + (3 - (o & 3))); } static void reversed_bs_w_1(void *t, bus_space_handle_t h, bus_size_t o, u_int8_t v) { writeb(h + (o &~ 3) + (3 - (o & 3)), v); } static uint16_t reversed_bs_r_2(void *t, bus_space_handle_t h, bus_size_t o) { return readw(h + (o &~ 3) + (2 - (o & 3))); } static void reversed_bs_w_2(void *t, bus_space_handle_t h, bus_size_t o, uint16_t v) { writew(h + (o &~ 3) + (2 - (o & 3)), v); }