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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 1.1 (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 by Apple Computer, Inc., all rights reserved.
26: /*
27: * Copyright (c) 1991-1997 NeXT Software, Inc. All rights reserved.
28: *
29: * IdeCnt.h - Interface for Ide Controller class.
30: *
31: * HISTORY
32: *
33: * 07-Jul-1994 Rakesh Dubey at NeXT
34: * Created from original driver written by David Somayajulu.
35: */
36:
37: #ifdef DRIVER_PRIVATE
38:
39: #ifndef _BSD_DEV_I386_IDECNT_H_
40: #define _BSD_DEV_I386_IDECNT_H_
41:
42: #define __APPLE_TYPES_DEFINED__ 1
43:
44: #import <driverkit/return.h>
45: #import <driverkit/driverTypes.h>
46: #import <driverkit/IODevice.h>
47: #import <driverkit/ppc/IOTreeDevice.h>
48: #import <driverkit/ppc/IODBDMA.h>
49: #import <driverkit/ppc/directDevice.h>
50: #import <driverkit/generalFuncs.h>
51: #import <sys/types.h>
52: #import "IdeCntPublic.h"
53: #import "AtapiCntPublic.h"
54: #import <driverkit/IOPower.h>
55:
56:
57: typedef enum {
58: IDE_PM_SLEEP = 0, IDE_PM_STANDBY, IDE_PM_IDLE, IDE_PM_ACTIVE
59: } idePowerState_t;
60:
61: typedef enum {
62: IDE_TRANSFER_PIO = 0, IDE_TRANSFER_SW_DMA, IDE_TRANSFER_MW_DMA, IDE_TRANSFER_ULTRA_DMA,
63: } ideTransferType_t;
64:
65: typedef enum {
66: IDE_TRANSFER_16_BIT = 0, IDE_TRANSFER_32_BIT
67: } ideTransferWidth_t;
68:
69: typedef enum {
70: IDE_PIO_ACCESS_BASE = 0,
71: IDE_PIO_ACCESS_MIN = 4,
72: IDE_PIO_RECOVERY_BASE = 4,
73: IDE_PIO_RECOVERY_MIN = 1,
74:
75: IDE_DMA_ACCESS_BASE = 0,
76: IDE_DMA_ACCESS_MIN = 1,
77: IDE_DMA_RECOVERY_BASE = 1,
78: IDE_DMA_RECOVERY_MIN = 1,
79: } ideDMAConfigLimits_t;
80:
81: typedef enum {
82: IDE_DMA_NONE, IDE_DMA_SINGLEWORD, IDE_DMA_MULTIWORD, IDE_DMA_ULTRA
83: } ideDMATypes_t;
84:
85: typedef struct _Cmd646xRegs
86: {
87: u_int8_t cntrlReg;
88: u_int8_t arttimReg;
89: u_int8_t cmdtimReg;
90: u_int8_t drwtimRegPIO;
91: u_int8_t drwtimRegDMA;
92: u_int8_t udidetcrReg;
93: } Cmd646xRegs_t;
94:
95:
96: typedef struct
97: {
98: BOOL fChanged;
99: BOOL useDMA;
100: int pioMode;
101: int pioAccessTime;
102: int pioCycleTime;
103: ideDMATypes_t dmaType;
104: int dmaMode;
105: int dmaAccessTime;
106: int dmaCycleTime;
107: union
108: {
109: u_int32_t dbdmaConfig;
110: Cmd646xRegs_t cmd646XConfig;
111: } ideConfig;
112: } ideCycleTimes_t;
113:
114:
115: @interface IdeController:IODirectDevice<IdeControllerPublic,
116: AtapiControllerPublic, IOPower>
117: {
118: @private
119: id _ideCmdLock; /* NXLock */
120:
121: ideRegsAddrs_t _ideRegsAddrs;
122:
123: volatile IODBDMAChannelRegisters *_ideDMARegs;
124: volatile IODBDMADescriptor *_ideDMACommands;
125: uint _ideDMACommandsPhys;
126:
127: port_t _ideDevicePort;
128: port_t _ideInterruptPort;
129: unsigned int _interruptTimeOut;
130:
131: unsigned int _busNum;
132: /*
133: * From BIOS/CMOS. We use this only if the user asks for it. The ideInfo
134: * structure is like the INT41 table. We fill this in even if we do not
135: * use BIOS and get all our info from the drive using IDE_IDENTIFY_DRIVE.
136: */
137: ideDriveInfo_t _ideInfo[MAX_IDE_DRIVES];
138:
139: /*
140: * This is used for communication between ideSendCommand and methods for
141: * individual commands.
142: */
143: unsigned char _driveNum; /* target drive */
144:
145: unsigned char _controllerNum; /* our number */
146:
147: unsigned char _controllerType;
148: /*
149: * Information from IDE_IDENTIFY_DRIVE commnad.
150: */
151: BOOL _ideIdentifyInfoSupported[MAX_IDE_DRIVES];
152: ideIdentifyInfo_t _ideIdentifyInfo[MAX_IDE_DRIVES];
153: BOOL _dmaSupported[MAX_IDE_DRIVES];
154: unsigned char _driveReset[MAX_IDE_DRIVES];
155:
156: BOOL _multiSectorRequested; /* user option */
157: unsigned short _multiSector[MAX_IDE_DRIVES];
158: unsigned char _addressMode[MAX_IDE_DRIVES]; /* LBA or CHS */
159: ideCycleTimes_t _cycleTimes[MAX_IDE_DRIVES];
160:
161: BOOL _IOCHRDYSupport; /* Host side */
162:
163: /*
164: * ATAPI related ivars.
165: */
166: BOOL _atapiDevice[MAX_IDE_DRIVES];
167: BOOL _atapiCommandActive[MAX_IDE_DRIVES];
168: unsigned char _atapiCmdLen[MAX_IDE_DRIVES];
169: unsigned char _atapiCmdDrqType[MAX_IDE_DRIVES];
170:
171: /*
172: * Power management related ivars.
173: */
174: idePowerState_t _drivePowerState; /* PM state for both drives */
175: BOOL _driveSleepRequest;
176: }
177:
178: /*
179: * Exported methods.
180: */
181: + (BOOL)probe:(IOTreeDevice *)devDesc;
182:
183: - (void)enableInterrupts;
184: - (void)disableInterrupts;
185:
186: - (void)setInterruptTimeOut:(unsigned int)timeOut;
187: - (unsigned int)interruptTimeOut;
188:
189: - (ide_return_t)ideWaitForInterrupt:(unsigned int)command
190: ideStatus:(unsigned char *)status;
191: - (void)clearInterrupts;
192:
193: /*
194: * Controller status checks.
195: */
196: - (ide_return_t)waitForNotBusy;
197: - (ide_return_t)waitForDeviceReady;
198: - (ide_return_t)waitForDataReady;
199:
200: - (ide_return_t)ataIdeReadGetInfoCommonWaitForDataReady;
201:
202: /*
203: * Miscellaneous methods.
204: */
205:
206: - (void) configWriteByte: (u_int32_t)reg value: (u_int8_t)cfgByte;
207: - (void) configReadByte: (u_int32_t)reg value: (u_int8_t *)cfgByte;
208:
209:
210: - (IOReturn) ideExecuteCmd:(ideIoReq_t *)ideIoReq ToDrive:(unsigned char)drive;
211:
212: - (void)xferData:(caddr_t)addr read:(BOOL)read client:(struct vm_map *)client
213: length:(unsigned)length;
214:
215: - (void)ideCntrlrLock;
216: - (void)ideCntrlrUnLock;
217:
218: - (u_int) numberOfDrives;
219:
220: - (void)atapiCntrlrLock;
221: - (void)atapiCntrlrUnLock;
222:
223: - (BOOL)isMultiSectorAllowed:(unsigned int)unit;
224: - (unsigned int)getMultiSectorValue:(unsigned int)unit;
225: - (ideIdentifyInfo_t *) getIdeIdentifyInfo:(unsigned int)unit;
226: - (ideDriveInfo_t *) getIdeDriveInfo:(unsigned int)unit;
227: - (void)getIdeRegisters:(ideRegsVal_t *)rvp Print:(char *)printString;
228: - (BOOL) isDmaSupported:(unsigned int)unit;
229:
230: -(void) setTransferRate: (int) unit UseDMA:(BOOL)fUseDMA;
231: -(void) setTransferMode:(int) unit;
232:
233: /*
234: * Number of sectors that can be transferred via READ_MULTIPLE or
235: * WRITE_MULTIPLE command.
236: */
237: - (unsigned int)getMultiSectorValue:(unsigned int)unit;
238:
239: /*
240: * ATAPI related methods.
241: */
242: - (unsigned int)numDevices; /* max devices on ATA bus */
243: - (BOOL)isAtapiDevice:(unsigned char)unit;
244: - (BOOL)isAtapiCommandActive:(unsigned char)unit;
245: - (void)setAtapiCommandActive:(BOOL)state forUnit:(unsigned char)unit;
246:
247: /*
248: * Power management methods.
249: */
250: - (idePowerState_t)drivePowerState;
251: - (void)setDrivePowerState:(idePowerState_t)state;
252: - (void)putDriveToSleep;
253: - (void)wakeUpDrive;
254: - (BOOL)spinUpDrive:(unsigned int)unit;
255: - (BOOL)startUpAttachedDevices;
256:
257: /*
258: * The PM state is per controller, not per device.
259: */
260: - (IOReturn) getPowerState:(PMPowerState *)state_p;
261: - (IOReturn) setPowerState:(PMPowerState)state;
262: - (IOReturn) getPowerManagement:(PMPowerManagementState *)state_p;
263: - (IOReturn) setPowerManagement:(PMPowerManagementState)state;
264:
265: @end
266:
267: #define MAX_BUSY_DELAY (10 * 1000 * 1000) // 10 seconds
268: #define MAX_DATA_READY_DELAY (10 * 1000 * 1000)
269:
270: #define MEDIA_BAY_ID_MASK 0x0000ff00
271: #define MEDIA_BAY_ID_CDROM 0x00003000
272:
273: /*
274: * This is actually quite a long time but it is mandated by the spec.
275: */
276: #define IDE_INTR_TIMEOUT (30*1000) // thirty seconds
277:
278: #endif _BSD_DEV_I386_IDECNT_H_
279:
280: #endif DRIVER_PRIVATE
281:
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