sys/dev/marvell/gtvar.h

   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(device_t, device_t, int, int);
 123 void    gt_mii_write(device_t, device_t, 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_ */