1 /* $NetBSD: gtvar.h,v 1.13 2007/02/21 23:00:00 thorpej 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 struct gt_softc { 49 struct device gt_dev; 50 bus_dma_tag_t gt_dmat; 51 bus_space_tag_t gt_memt; /* the GT itself */ 52 bus_space_tag_t gt_pci0_memt; /* PCI0 mem space */ 53 bus_space_tag_t gt_pci0_iot; /* PCI0 i/o space */ 54 bool gt_pci0_host; /* We're host on PCI0 if TRUE */ 55 bus_space_tag_t gt_pci1_memt; /* PCI1 mem space */ 56 bus_space_tag_t gt_pci1_iot; /* PCI1 i/o space */ 57 bool gt_pci1_host; /* We're host on PCI1 if TRUE */ 58 59 bus_space_handle_t gt_memh; /* to access the GT registers */ 60 int gt_childmask; /* what children are present */ 61 }; 62 63 #define GT_CHILDOK(gt, ga, cd, pos, max) \ 64 (((ga)->ga_unit) < (max) && \ 65 !((gt)->gt_childmask & (1 << (((ga)->ga_unit) + (pos)))) && \ 66 !strcmp((ga)->ga_name, (cd)->cd_name)) 67 68 #define GT_MPSCOK(gt, ga, cd) GT_CHILDOK((gt), (ga), (cd), 0, 2) 69 #define GT_PCIOK(gt, ga, cd) GT_CHILDOK((gt), (ga), (cd), 2, 2) 70 #define GT_ETHEROK(gt, ga, cd) GT_CHILDOK((gt), (ga), (cd), 4, 3) 71 #define GT_OBIOOK(gt, ga, cd) GT_CHILDOK((gt), (ga), (cd), 7, 5) 72 #define GT_I2COK(gt, ga, cd) GT_CHILDOK((gt), (ga), (cd), 12, 1) 73 74 #define GT_CHILDFOUND(gt, ga, pos) \ 75 ((void)(((gt)->gt_childmask |= (1 << (((ga)->ga_unit) + (pos)))))) 76 77 #define GT_MPSCFOUND(gt, ga) GT_CHILDFOUND((gt), (ga), 0) 78 #define GT_PCIFOUND(gt, ga) GT_CHILDFOUND((gt), (ga), 2) 79 #define GT_ETHERFOUND(gt, ga) GT_CHILDFOUND((gt), (ga), 4) 80 #define GT_OBIOFOUND(gt, ga) GT_CHILDFOUND((gt), (ga), 7) 81 #define GT_I2CFOUND(gt, ga) GT_CHILDFOUND((gt), (ga), 12) 82 83 struct gt_attach_args { 84 const char *ga_name; /* class name of device */ 85 bus_dma_tag_t ga_dmat; /* dma tag */ 86 bus_space_tag_t ga_memt; /* GT bus space tag */ 87 bus_space_handle_t ga_memh; /* GT bus space handle */ 88 int ga_unit; /* instance of ga_name */ 89 }; 90 91 struct obio_attach_args { 92 const char *oa_name; /* call name of device */ 93 bus_space_tag_t oa_memt; /* bus space tag */ 94 bus_addr_t oa_offset; /* offset (absolute) to device */ 95 bus_size_t oa_size; /* size (strided) of device */ 96 int oa_irq; /* irq */ 97 }; 98 99 #ifdef _KERNEL 100 #include "locators.h" 101 102 #ifdef DEBUG 103 extern int gtpci_debug; 104 #endif 105 106 /* 107 * Locators for GT private devices, as specified to config. 108 */ 109 #define GT_UNK_UNIT GTCF_UNIT_DEFAULT /* wcarded 'function' */ 110 111 #define OBIO_UNK_OFFSET OBIOCF_OFFSET_DEFAULT /* wcarded 'offset' */ 112 113 #define OBIO_UNK_SIZE OBIOCF_SIZE_DEFAULT /* wcarded 'size' */ 114 115 #define OBIO_UNK_IRQ OBIOCF_IRQ_DEFAULT /* wcarded 'irq' */ 116 117 void gt_attach_common(struct gt_softc *); 118 uint32_t gt_read_mpp(void); 119 int gt_cfprint(void *, const char *); 120 121 /* int gt_bs_extent_init(struct discovery_bus_space *, char *); AKB */ 122 int gt_mii_read(struct device *, struct device *, int, int); 123 void gt_mii_write(struct device *, struct device *, int, int, int); 124 int gtget_macaddr(struct gt_softc *,int, char *); 125 void gt_watchdog_service(void); 126 bus_addr_t gt_dma_phys_to_bus_mem(bus_dma_tag_t, bus_addr_t); 127 bus_addr_t gt_dma_bus_mem_to_phys(bus_dma_tag_t, bus_addr_t); 128 129 #define gt_read(gt,o) \ 130 bus_space_read_4((gt)->gt_memt, (gt)->gt_memh, (o)) 131 #define gt_write(gt,o,v) \ 132 bus_space_write_4((gt)->gt_memt, (gt)->gt_memh, (o), (v)) 133 134 #if defined(__powerpc__) 135 static __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