1 1.1 takemura /* 2 1.1 takemura * Copyright (c) 2001 HAMAJIMA Katsuomi. All rights reserved. 3 1.1 takemura * 4 1.1 takemura * Redistribution and use in source and binary forms, with or without 5 1.1 takemura * modification, are permitted provided that the following conditions 6 1.1 takemura * are met: 7 1.1 takemura * 1. Redistributions of source code must retain the above copyright 8 1.1 takemura * notice, this list of conditions and the following disclaimer. 9 1.1 takemura * 2. Redistributions in binary form must reproduce the above copyright 10 1.1 takemura * notice, this list of conditions and the following disclaimer in the 11 1.1 takemura * documentation and/or other materials provided with the distribution. 12 1.1 takemura * 13 1.1 takemura * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 1.1 takemura * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 1.1 takemura * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 1.1 takemura * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17 1.1 takemura * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 1.1 takemura * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 1.1 takemura * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 1.1 takemura * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 1.1 takemura * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 1.1 takemura * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 1.1 takemura * SUCH DAMAGE. 24 1.1 takemura */ 25 1.1 takemura 26 1.4 lukem #include <sys/cdefs.h> 27 1.7 matt __KERNEL_RCSID(0, "$NetBSD: vrdmaau.c,v 1.7 2015/06/09 22:46:36 matt Exp $"); 28 1.4 lukem 29 1.1 takemura #include <sys/param.h> 30 1.7 matt #include <sys/bus.h> 31 1.7 matt #include <sys/device.h> 32 1.1 takemura #include <sys/systm.h> 33 1.1 takemura 34 1.7 matt #include <mips/cpuregs.h> 35 1.1 takemura 36 1.1 takemura #include <hpcmips/vr/vripif.h> 37 1.1 takemura #include <hpcmips/vr/dmaaureg.h> 38 1.1 takemura 39 1.1 takemura #ifdef VRDMAAU_DEBUG 40 1.1 takemura int vrdmaau_debug = VRDMAAU_DEBUG; 41 1.1 takemura #define DPRINTFN(n,x) if (vrdmaau_debug>(n)) printf x; 42 1.1 takemura #else 43 1.1 takemura #define DPRINTFN(n,x) 44 1.1 takemura #endif 45 1.1 takemura 46 1.1 takemura struct vrdmaau_softc { 47 1.6 chs device_t sc_dev; 48 1.1 takemura bus_space_tag_t sc_iot; 49 1.1 takemura bus_space_handle_t sc_ioh; 50 1.1 takemura struct vrdmaau_chipset_tag sc_chipset; 51 1.1 takemura }; 52 1.1 takemura 53 1.6 chs int vrdmaau_match(device_t, cfdata_t, void *); 54 1.6 chs void vrdmaau_attach(device_t, device_t, void *); 55 1.1 takemura 56 1.6 chs CFATTACH_DECL_NEW(vrdmaau, sizeof(struct vrdmaau_softc), 57 1.3 thorpej vrdmaau_match, vrdmaau_attach, NULL, NULL); 58 1.1 takemura 59 1.1 takemura int vrdmaau_set_aiuin(vrdmaau_chipset_tag_t, void *); 60 1.1 takemura int vrdmaau_set_aiuout(vrdmaau_chipset_tag_t, void *); 61 1.1 takemura int vrdmaau_set_fir(vrdmaau_chipset_tag_t, void *); 62 1.1 takemura static int vrdmaau_phy_addr(struct vrdmaau_softc *, void *, u_int32_t *); 63 1.1 takemura 64 1.1 takemura int 65 1.6 chs vrdmaau_match(device_t parent, cfdata_t cf, void *aux) 66 1.1 takemura { 67 1.1 takemura return 2; /* 1st attach group of vrip */ 68 1.1 takemura } 69 1.1 takemura 70 1.1 takemura void 71 1.6 chs vrdmaau_attach(device_t parent, device_t self, void *aux) 72 1.1 takemura { 73 1.1 takemura struct vrip_attach_args *va = aux; 74 1.6 chs struct vrdmaau_softc *sc = device_private(self); 75 1.1 takemura 76 1.6 chs sc->sc_dev = self; 77 1.1 takemura sc->sc_iot = va->va_iot; 78 1.1 takemura sc->sc_chipset.ac_sc = sc; 79 1.1 takemura sc->sc_chipset.ac_set_aiuin = vrdmaau_set_aiuin; 80 1.1 takemura sc->sc_chipset.ac_set_aiuout = vrdmaau_set_aiuout; 81 1.1 takemura sc->sc_chipset.ac_set_fir = vrdmaau_set_fir; 82 1.1 takemura 83 1.1 takemura if (bus_space_map(sc->sc_iot, va->va_addr, va->va_size, 84 1.1 takemura 0 /* no flags */, &sc->sc_ioh)) { 85 1.1 takemura printf(": can't map i/o space\n"); 86 1.1 takemura return; 87 1.1 takemura } 88 1.1 takemura printf("\n"); 89 1.1 takemura vrip_register_dmaau(va->va_vc, &sc->sc_chipset); 90 1.1 takemura } 91 1.1 takemura 92 1.1 takemura int 93 1.1 takemura vrdmaau_set_aiuin(vrdmaau_chipset_tag_t ac, void *addr) 94 1.1 takemura { 95 1.1 takemura struct vrdmaau_softc *sc = ac->ac_sc; 96 1.1 takemura u_int32_t phy; 97 1.1 takemura int err; 98 1.1 takemura 99 1.1 takemura DPRINTFN(1, ("vrdmaau_set_aiuin: address %p\n", addr)); 100 1.1 takemura 101 1.1 takemura if ((err = vrdmaau_phy_addr(sc, addr, &phy))) 102 1.1 takemura return err; 103 1.1 takemura 104 1.1 takemura bus_space_write_2(sc->sc_iot, sc->sc_ioh, AIUIBAH_REG_W, phy >> 16); 105 1.1 takemura bus_space_write_2(sc->sc_iot, sc->sc_ioh, AIUIBAL_REG_W, phy & 0xffff); 106 1.1 takemura return 0; 107 1.1 takemura } 108 1.1 takemura 109 1.1 takemura int 110 1.1 takemura vrdmaau_set_aiuout(vrdmaau_chipset_tag_t ac, void *addr) 111 1.1 takemura { 112 1.1 takemura struct vrdmaau_softc *sc = ac->ac_sc; 113 1.1 takemura u_int32_t phy; 114 1.1 takemura int err; 115 1.1 takemura 116 1.1 takemura DPRINTFN(1, ("vrdmaau_set_aiuout: address %p\n", addr)); 117 1.1 takemura 118 1.1 takemura if ((err = vrdmaau_phy_addr(sc, addr, &phy))) 119 1.1 takemura return err; 120 1.1 takemura 121 1.1 takemura bus_space_write_2(sc->sc_iot, sc->sc_ioh, AIUOBAH_REG_W, phy >> 16); 122 1.1 takemura bus_space_write_2(sc->sc_iot, sc->sc_ioh, AIUOBAL_REG_W, phy & 0xffff); 123 1.1 takemura return 0; 124 1.1 takemura } 125 1.1 takemura 126 1.1 takemura int 127 1.1 takemura vrdmaau_set_fir(vrdmaau_chipset_tag_t ac, void *addr) 128 1.1 takemura { 129 1.1 takemura struct vrdmaau_softc *sc = ac->ac_sc; 130 1.1 takemura u_int32_t phy; 131 1.1 takemura int err; 132 1.1 takemura 133 1.1 takemura DPRINTFN(1, ("vrdmaau_set_fir: address %p\n", addr)); 134 1.1 takemura 135 1.1 takemura if ((err = vrdmaau_phy_addr(sc, addr, &phy))) 136 1.1 takemura return err; 137 1.1 takemura 138 1.1 takemura bus_space_write_2(sc->sc_iot, sc->sc_ioh, FIRBAH_REG_W, phy >> 16); 139 1.1 takemura bus_space_write_2(sc->sc_iot, sc->sc_ioh, FIRBAL_REG_W, phy & 0xffff); 140 1.1 takemura return 0; 141 1.1 takemura } 142 1.1 takemura 143 1.1 takemura static int 144 1.1 takemura vrdmaau_phy_addr(struct vrdmaau_softc *sc, void *addr, u_int32_t *phy) 145 1.1 takemura { 146 1.1 takemura DPRINTFN(1, ("vrdmaau_phy_addr\n")); 147 1.1 takemura 148 1.1 takemura if (addr >= (void *)MIPS_KSEG0_START && 149 1.1 takemura addr < (void *)MIPS_KSEG1_START) 150 1.1 takemura *phy = MIPS_KSEG0_TO_PHYS(addr); 151 1.1 takemura else if (addr >= (void *)MIPS_KSEG1_START && 152 1.1 takemura addr < (void *)MIPS_KSEG2_START) 153 1.1 takemura *phy = MIPS_KSEG1_TO_PHYS(addr); 154 1.1 takemura else { 155 1.1 takemura DPRINTFN(0, ("vrdmaau_map_addr: invalid address %p\n", addr)); 156 1.1 takemura return EFAULT; 157 1.1 takemura } 158 1.1 takemura 159 1.1 takemura #ifdef DIAGNOSTIC 160 1.1 takemura if ((*phy & (VRDMAAU_ALIGNMENT - 1)) || 161 1.1 takemura *phy >= VRDMAAU_BOUNCE_THRESHOLD ) { 162 1.1 takemura printf("%s: vrdmaau_phy_addr: invalid address %p\n", 163 1.6 chs device_xname(sc->sc_dev), addr); 164 1.1 takemura return EINVAL; 165 1.1 takemura } 166 1.1 takemura #endif 167 1.1 takemura return 0; 168 1.1 takemura } 169