1 /* 2 * linux/zorro.h -- Amiga AutoConfig (Zorro) Bus Definitions 3 * 4 * Copyright (C) 1995--2000 Geert Uytterhoeven 5 * 6 * This file is subject to the terms and conditions of the GNU General Public 7 * License. See the file COPYING in the main directory of this archive 8 * for more details. 9 */ 10 11 #ifndef _LINUX_ZORRO_H 12 #define _LINUX_ZORRO_H 13 14 #ifndef __ASSEMBLY__ 15 16 /* 17 * Each Zorro board has a 32-bit ID of the form 18 * 19 * mmmmmmmmmmmmmmmmppppppppeeeeeeee 20 * 21 * with 22 * 23 * mmmmmmmmmmmmmmmm 16-bit Manufacturer ID (assigned by CBM (sigh)) 24 * pppppppp 8-bit Product ID (assigned by manufacturer) 25 * eeeeeeee 8-bit Extended Product ID (currently only used 26 * for some GVP boards) 27 */ 28 29 30 #define ZORRO_MANUF(id) ((id) >> 16) 31 #define ZORRO_PROD(id) (((id) >> 8) & 0xff) 32 #define ZORRO_EPC(id) ((id) & 0xff) 33 34 #define ZORRO_ID(manuf, prod, epc) \ 35 ((ZORRO_MANUF_##manuf << 16) | ((prod) << 8) | (epc)) 36 37 typedef __u32 zorro_id; 38 39 40 #define ZORRO_WILDCARD (0xffffffff) /* not official */ 41 42 /* Include the ID list */ 43 #include <linux/zorro_ids.h> 44 45 46 /* 47 * GVP identifies most of its products through the 'extended product code' 48 * (epc). The epc has to be ANDed with the GVP_PRODMASK before the 49 * identification. 50 */ 51 52 #define GVP_PRODMASK (0xf8) 53 #define GVP_SCSICLKMASK (0x01) 54 55 enum GVP_flags { 56 GVP_IO = 0x01, 57 GVP_ACCEL = 0x02, 58 GVP_SCSI = 0x04, 59 GVP_24BITDMA = 0x08, 60 GVP_25BITDMA = 0x10, 61 GVP_NOBANK = 0x20, 62 GVP_14MHZ = 0x40, 63 }; 64 65 66 struct Node { 67 struct Node *ln_Succ; /* Pointer to next (successor) */ 68 struct Node *ln_Pred; /* Pointer to previous (predecessor) */ 69 __u8 ln_Type; 70 __s8 ln_Pri; /* Priority, for sorting */ 71 __s8 *ln_Name; /* ID string, null terminated */ 72 } __attribute__ ((packed)); 73 74 struct ExpansionRom { 75 /* -First 16 bytes of the expansion ROM */ 76 __u8 er_Type; /* Board type, size and flags */ 77 __u8 er_Product; /* Product number, assigned by manufacturer */ 78 __u8 er_Flags; /* Flags */ 79 __u8 er_Reserved03; /* Must be zero ($ff inverted) */ 80 __u16 er_Manufacturer; /* Unique ID, ASSIGNED BY COMMODORE-AMIGA! */ 81 __u32 er_SerialNumber; /* Available for use by manufacturer */ 82 __u16 er_InitDiagVec; /* Offset to optional "DiagArea" structure */ 83 __u8 er_Reserved0c; 84 __u8 er_Reserved0d; 85 __u8 er_Reserved0e; 86 __u8 er_Reserved0f; 87 } __attribute__ ((packed)); 88 89 /* er_Type board type bits */ 90 #define ERT_TYPEMASK 0xc0 91 #define ERT_ZORROII 0xc0 92 #define ERT_ZORROIII 0x80 93 94 /* other bits defined in er_Type */ 95 #define ERTB_MEMLIST 5 /* Link RAM into free memory list */ 96 #define ERTF_MEMLIST (1<<5) 97 98 struct ConfigDev { 99 struct Node cd_Node; 100 __u8 cd_Flags; /* (read/write) */ 101 __u8 cd_Pad; /* reserved */ 102 struct ExpansionRom cd_Rom; /* copy of board's expansion ROM */ 103 void *cd_BoardAddr; /* where in memory the board was placed */ 104 __u32 cd_BoardSize; /* size of board in bytes */ 105 __u16 cd_SlotAddr; /* which slot number (PRIVATE) */ 106 __u16 cd_SlotSize; /* number of slots (PRIVATE) */ 107 void *cd_Driver; /* pointer to node of driver */ 108 struct ConfigDev *cd_NextCD; /* linked list of drivers to config */ 109 __u32 cd_Unused[4]; /* for whatever the driver wants */ 110 } __attribute__ ((packed)); 111 112 #else /* __ASSEMBLY__ */ 113 114 LN_Succ = 0 115 LN_Pred = LN_Succ+4 116 LN_Type = LN_Pred+4 117 LN_Pri = LN_Type+1 118 LN_Name = LN_Pri+1 119 LN_sizeof = LN_Name+4 120 121 ER_Type = 0 122 ER_Product = ER_Type+1 123 ER_Flags = ER_Product+1 124 ER_Reserved03 = ER_Flags+1 125 ER_Manufacturer = ER_Reserved03+1 126 ER_SerialNumber = ER_Manufacturer+2 127 ER_InitDiagVec = ER_SerialNumber+4 128 ER_Reserved0c = ER_InitDiagVec+2 129 ER_Reserved0d = ER_Reserved0c+1 130 ER_Reserved0e = ER_Reserved0d+1 131 ER_Reserved0f = ER_Reserved0e+1 132 ER_sizeof = ER_Reserved0f+1 133 134 CD_Node = 0 135 CD_Flags = CD_Node+LN_sizeof 136 CD_Pad = CD_Flags+1 137 CD_Rom = CD_Pad+1 138 CD_BoardAddr = CD_Rom+ER_sizeof 139 CD_BoardSize = CD_BoardAddr+4 140 CD_SlotAddr = CD_BoardSize+4 141 CD_SlotSize = CD_SlotAddr+2 142 CD_Driver = CD_SlotSize+2 143 CD_NextCD = CD_Driver+4 144 CD_Unused = CD_NextCD+4 145 CD_sizeof = CD_Unused+(4*4) 146 147 #endif /* __ASSEMBLY__ */ 148 149 #ifndef __ASSEMBLY__ 150 151 #define ZORRO_NUM_AUTO 16 152 153 #ifdef __KERNEL__ 154 155 #include <linux/init.h> 156 #include <linux/ioport.h> 157 158 #include <asm/zorro.h> 159 160 struct zorro_dev { 161 struct ExpansionRom rom; 162 zorro_id id; 163 u16 slotaddr; 164 u16 slotsize; 165 char name[64]; 166 struct resource resource; 167 }; 168 169 extern unsigned int zorro_num_autocon; /* # of autoconfig devices found */ 170 extern struct zorro_dev zorro_autocon[ZORRO_NUM_AUTO]; 171 172 173 /* 174 * Zorro Functions 175 */ 176 177 extern void zorro_init(void); 178 extern void zorro_name_device(struct zorro_dev *dev); 179 180 extern struct zorro_dev *zorro_find_device(zorro_id id, 181 struct zorro_dev *from); 182 183 #define zorro_request_device(z, name) \ 184 request_mem_region((z)->resource.start, \ 185 (z)->resource.end-(z)->resource.start+1, (name)) 186 #define zorro_check_device(z) \ 187 check_mem_region((z)->resource.start, \ 188 (z)->resource.end-(z)->resource.start+1) 189 #define zorro_release_device(z) \ 190 release_mem_region((z)->resource.start, \ 191 (z)->resource.end-(z)->resource.start+1) 192 193 194 /* 195 * Bitmask indicating portions of available Zorro II RAM that are unused 196 * by the system. Every bit represents a 64K chunk, for a maximum of 8MB 197 * (128 chunks, physical 0x00200000-0x009fffff). 198 * 199 * If you want to use (= allocate) portions of this RAM, you should clear 200 * the corresponding bits. 201 */ 202 203 extern __u32 zorro_unused_z2ram[4]; 204 205 #define Z2RAM_START (0x00200000) 206 #define Z2RAM_END (0x00a00000) 207 #define Z2RAM_SIZE (0x00800000) 208 #define Z2RAM_CHUNKSIZE (0x00010000) 209 #define Z2RAM_CHUNKMASK (0x0000ffff) 210 #define Z2RAM_CHUNKSHIFT (16) 211 212 213 #endif /* !__ASSEMBLY__ */ 214 #endif /* __KERNEL__ */ 215 216 #endif /* _LINUX_ZORRO_H */ 217