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1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.0 (the 'License'). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License."
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24: /*
25: * Copyright 1997-1998 by Apple Computer, Inc., All rights reserved.
26: * Copyright 1994-1997 NeXT Software, Inc., All rights reserved.
27: *
28: * Post-Load command for IDE disks. Creates device nodes /dev/hd[0-3][a-h]
29: * and /dev/rhd[0-3][a-h].
30: * units.
31: *
32: * HISTORY
33: * 30-Sep-94 Rakesh Dubey at NeXT
34: * Created from SCSI tape source.
35: */
36:
37: #import <streams/streams.h>
38: #import <driverkit/IODeviceMaster.h>
39: #import <driverkit/IODevice.h>
40: #import <errno.h>
41: #import <libc.h>
42:
43: #import <ata_extern.h>
44:
45: #define PATH_NAME_SIZE 10
46: #define DEV_STRING "/dev/"
47: #define IDE_INIT_ERR_STRING "Error initializing IDE driver"
48:
49: #define DEV_MOD_CHAR 020640
50: #define DEV_MOD_BLOCK 060640
51:
52: #define DEV_UMASK 0
53:
54: #define NIDE_PARTITIONS 8
55:
56: #define NIDE_DEVICES (MAX_IDE_DRIVES * MAX_IDE_CONTROLLERS)
57:
58: static int makeNode(char *deviceName, int iUnit, int major, int num,
59: unsigned short mode);
60:
61: int main(int argc, char **argv)
62: {
63: IOReturn ret;
64: IOObjectNumber tag;
65: IOString kind;
66: unsigned int count;
67: IODeviceMaster *devMaster;
68: int blockMajor, characterMajor;
69: int i, iUnit, iRet;
70: char path[PATH_NAME_SIZE];
71:
72: iRet = 0;
73:
74: devMaster = [IODeviceMaster new];
75:
76: /*
77: * The kernel creates first two. This needs some investigation. FIXME.
78: */
79: for (iUnit = 2; iUnit < NIDE_DEVICES; iUnit ++) {
80:
81: bzero(path, PATH_NAME_SIZE);
82: sprintf(path, "%s%s%d", DEV_STRING, "hd", iUnit);
83:
84: /*
85: * Find this instance of the IDE driver
86: */
87:
88: ret = [devMaster lookUpByDeviceName: path + strlen(DEV_STRING)
89: objectNumber: &tag
90: deviceKind: &kind];
91:
92: #ifdef DEBUG
93: printf ("unit %d, obj name %s\n", iUnit, path);
94: printf ("ret = %d\n", ret);
95: #endif DEBUG
96:
97: /*
98: * If this device does not exist then we don't want to create nodes
99: * for it. This saves some time.
100: */
101: if (ret != IO_R_SUCCESS) {
102: continue;
103: }
104:
105: /*
106: * Query the object for its major device number
107: */
108: blockMajor = -1;
109: ret = [devMaster getIntValues:&blockMajor
110: forParameter:"BlockMajor" objectNumber:tag
111: count:&count];
112: if (ret != IO_R_SUCCESS) {
113: printf("%s: couldn't get block major number: Returned %d.\n",
114: IDE_INIT_ERR_STRING, ret);
115: iRet = -1;
116: }
117:
118: characterMajor = -1;
119: ret = [devMaster getIntValues:&characterMajor
120: forParameter:"CharacterMajor" objectNumber:tag
121: count:&count];
122: if (ret != IO_R_SUCCESS) {
123: printf("%s: couldn't get char major number: Returned %d.\n",
124: IDE_INIT_ERR_STRING, ret);
125: iRet = -1;
126: }
127:
128: /*
129: * Remove old devs and create new ones for this unit.
130: */
131: for (i = 0; i < NIDE_PARTITIONS; i++) {
132: iRet = makeNode("hd", iUnit, blockMajor, i, DEV_MOD_BLOCK);
133: iRet = makeNode("rhd", iUnit, characterMajor, i, DEV_MOD_CHAR);
134: }
135: }
136:
137: exit(iRet);
138: }
139:
140: static int makeNode(char *deviceName, int iUnit, int major, int num,
141: unsigned short mode)
142: {
143: int iRet;
144: int minor;
145: char path[PATH_NAME_SIZE];
146:
147: iRet = -1;
148:
149: #ifdef notdef
150: printf ("makeNode %s, iUnit %d num %d\n", deviceName, iUnit, num);
151: #endif notdef
152:
153: bzero(path, PATH_NAME_SIZE);
154: sprintf(path, "%s%s%d%c", DEV_STRING, deviceName, iUnit, num + 'a');
155:
156: minor = iUnit * NIDE_PARTITIONS + num;
157:
158: if (unlink(path)) {
159: if (errno != ENOENT) {
160: printf("%s: could not delete old %s. Errno is %d\n",
161: IDE_INIT_ERR_STRING, path, errno);
162: iRet = -1;
163: }
164: }
165:
166: umask(DEV_UMASK);
167: if (mknod(path, mode, (major << 8) | minor)) {
168: printf("%s: could not create %s. Errno is %d\n",
169: IDE_INIT_ERR_STRING, path, errno);
170: iRet = -1;
171: }
172:
173: return iRet;
174: }
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