gtvar.h revision 1.1
1 /* $NetBSD: gtvar.h,v 1.1 2003/03/05 22:08:23 matt Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Allegro Networks, Inc., Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed for the NetBSD Project by 18 * Allegro Networks, Inc., and Wasabi Systems, Inc. 19 * 4. The name of Allegro Networks, Inc. may not be used to endorse 20 * or promote products derived from this software without specific prior 21 * written permission. 22 * 5. The name of Wasabi Systems, Inc. may not be used to endorse 23 * or promote products derived from this software without specific prior 24 * written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY ALLEGRO NETWORKS, INC. AND 27 * WASABI SYSTEMS, INC. ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 28 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 29 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 30 * IN NO EVENT SHALL EITHER ALLEGRO NETWORKS, INC. OR WASABI SYSTEMS, INC. 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 /* 41 * gtvar.h -- placeholder for GT system controller driver 42 */ 43 #ifndef _DISCOVERY_DEV_GTVAR_H_ 44 #define _DISCOVERY_DEV_GTVAR_H_ 45 46 #include <sys/systm.h> 47 48 #define GTPCI_NBUS 2 49 50 struct gt_softc { 51 struct device gt_dev; 52 vaddr_t gt_vbase; /* mapped GT base address */ 53 #if 0 54 vaddr_t gt_iobat_vbase; /* I/O BAT virtual base */ 55 paddr_t gt_iobat_pbase; /* I/O BAT physical base */ 56 vsize_t gt_iobat_mask; /* I/O BAT mask (signif. bits only) */ 57 #endif 58 struct pci_chipset *gt_pcis[GTPCI_NBUS]; 59 bus_dma_tag_t gt_dmat; 60 bus_space_tag_t gt_memt; 61 bus_space_tag_t gt_pci0_memt; 62 bus_space_tag_t gt_pci0_iot; 63 bus_space_tag_t gt_pci1_memt; 64 bus_space_tag_t gt_pci1_iot; 65 }; 66 67 struct gt_attach_args { 68 const char *ga_name; /* class name of device */ 69 bus_dma_tag_t ga_dmat; /* dma tag */ 70 bus_space_tag_t ga_memt; /* GT bus space tag */ 71 int ga_unit; /* instance of ga_name */ 72 }; 73 74 #ifdef _KERNEL 75 #include "locators.h" 76 77 #ifdef DEBUG 78 extern int gtpci_debug; 79 #endif 80 81 /* 82 * Locators for GT private devices, as specified to config. 83 */ 84 #define gtcf_dev cf_loc[GTCF_DEV] 85 #define GT_UNK_DEV GTCF_DEV_DEFAULT /* wcarded 'dev' */ 86 87 #define gtcf_function cf_loc[GTCF_FUNCTION] 88 #define GT_UNK_FUNCTION GTCF_FUNCTION_DEFAULT /* wcarded 'function' */ 89 90 void gt_attach_common(struct gt_softc *); 91 uint32_t gt_read_mpp(void); 92 int gt_cfprint (void *, const char *); 93 94 void gtpci_config(struct gt_softc *, int, 95 bus_space_tag_t, bus_space_tag_t, bus_dma_tag_t); 96 void gteth_config (struct gt_softc *, int); 97 void gtmpsc_config (struct gt_softc *, int); 98 99 /* int gt_bs_extent_init(struct discovery_bus_space *, char *); AKB */ 100 int gt_mii_read (struct device *, struct device *, int, int); 101 void gt_mii_write (struct device *, struct device *, int, int, int); 102 int gtget_macaddr(struct gt_softc *gt, int function, char *enaddr); 103 void gtpci_config_bus(struct pci_chipset *pc, int busno); 104 void gt_setup(struct device *gt); 105 void gt_watchdog_service(void); 106 107 #define gt_read(a,b) gt_read_4(a,b) 108 #define gt_write(a,b,c) gt_write_4(a,b,c) 109 110 static __inline uint32_t 111 gt_read_4(struct device *dv, bus_addr_t off) 112 { 113 struct gt_softc *gt = (struct gt_softc *) dv; 114 uint32_t rv; 115 116 __asm __volatile("eieio; lwbrx %0,%1,%2; eieio;" 117 : "=r"(rv) 118 : "b"(gt->gt_vbase), "r"(off)); 119 120 return rv; 121 } 122 123 static __inline void 124 gt_write_4(struct device *dv, bus_addr_t off, uint32_t v) 125 { 126 struct gt_softc *gt = (struct gt_softc *) dv; 127 128 __asm __volatile("eieio; stwbrx %0,%1,%2; eieio;" 129 :: "r"(v), "b"(gt->gt_vbase), "r"(off)); 130 } 131 132 #if defined(__powerpc__) 133 static volatile inline int atomic_add(volatile int *p, int v); 134 135 static volatile inline int 136 atomic_add(volatile int *p, int v) 137 { 138 int rv; 139 int rtmp; 140 141 __asm __volatile( 142 "1: lwarx %0,0,%2\n" 143 " add %1,%3,%0\n" 144 " stwcx. %1,0,%2\n" 145 " bne- 1b\n" 146 " sync" 147 : "=&r"(rv), "=&r"(rtmp) 148 : "r"(p), "r"(v) 149 : "cc"); 150 151 return rv; 152 } 153 154 #endif /* __powerpc__ */ 155 156 #endif /* _KERNEL */ 157 158 #endif /* _DISCOVERY_DEV_GTVAR_H_ */ 159
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