![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to ide.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [Qemu by Fabrice Bellard] / qemu / roms / openbios / drivers|
Return to ide.h CVS log | Up to [Qemu by Fabrice Bellard] / qemu / roms / openbios / drivers |
1.1 root 1: #ifndef IDE_H
2: #define IDE_H
3:
4: #include "hdreg.h"
5:
6: /*
7: * legacy ide ports
8: */
9: #define IDEREG_DATA 0x00
10: #define IDEREG_ERROR 0x01
11: #define IDEREG_FEATURE IDEREG_ERROR
12: #define IDEREG_NSECTOR 0x02
13: #define IDEREG_SECTOR 0x03
14: #define IDEREG_LCYL 0x04
15: #define IDEREG_HCYL 0x05
16: #define IDEREG_CURRENT 0x06
17: #define IDEREG_STATUS 0x07
18: #define IDEREG_COMMAND IDEREG_STATUS
19: #define IDEREG_CONTROL 0x08
20: #define IDEREG_ASTATUS IDEREG_CONTROL
21:
22: /*
23: * device control bits
24: */
25: #define IDECON_NIEN 0x02
26: #define IDECON_SRST 0x04
27:
28: /*
29: * device head bits
30: */
31: #define IDEHEAD_LBA 0x40
32: #define IDEHEAD_DEV0 0x00
33: #define IDEHEAD_DEV1 0x10
34:
35: /*
36: * status bytes
37: */
38: #define ERR_STAT 0x01
39: #define DRQ_STAT 0x08
40: #define SEEK_STAT 0x10
41: #define WRERR_STAT 0x20
42: #define READY_STAT 0x40
43: #define BUSY_STAT 0x80
44:
45: #define IREASON_CD 0x01
46: #define IREASON_IO 0x02
47:
48: /*
49: * ATA opcodes
50: */
51: #define WIN_READ 0x20
52: #define WIN_READ_EXT 0x24
53: #define WIN_IDENTIFY 0xEC
54: #define WIN_PACKET 0xA0
55: #define WIN_IDENTIFY_PACKET 0xA1
56:
57: /*
58: * ATAPI opcodes
59: */
60: #define ATAPI_TUR 0x00
61: #define ATAPI_READ_10 0x28
62: #define ATAPI_REQ_SENSE 0x03
63: #define ATAPI_START_STOP_UNIT 0x1b
64: #define ATAPI_READ_CAPACITY 0x25
65:
66: /*
67: * atapi sense keys
68: */
69: #define ATAPI_SENSE_NOT_READY 0x02
70:
71: /*
72: * supported device types
73: */
74: enum {
75: ide_type_unknown,
76: ide_type_ata,
77: ide_type_atapi,
78: };
79:
80: enum {
81: ide_media_floppy = 0x00,
82: ide_media_cdrom = 0x05,
83: ide_media_optical = 0x07,
84: ide_media_disk = 0x20,
85: };
86:
87: /*
88: * drive addressing
89: */
90: enum {
91: ide_chs = 1,
92: ide_lba28,
93: ide_lba48,
94: };
95:
96: /*
97: * simple ata command that works for everything (except 48-bit lba commands)
98: */
99: struct ata_command {
100: unsigned char *buffer;
101: unsigned int buflen;
102:
103: /*
104: * data register
105: */
106: unsigned char data;
107: unsigned char feature;
108: unsigned char nsector;
109: unsigned char sector;
110: unsigned char lcyl;
111: unsigned char hcyl;
112: unsigned char device_head;
113: unsigned char command;
114: unsigned char control;
115:
116: /*
117: * or tasklet, just for lba48 for now (above could be scrapped)
118: */
119: unsigned char task[10];
120:
121: /*
122: * output
123: */
124: unsigned char stat;
125: unsigned int bytes;
126: };
127:
128: struct atapi_command {
129: unsigned char cdb[12];
130: unsigned char *buffer;
131: unsigned int buflen;
132: unsigned char data_direction;
133:
134: unsigned char stat;
135: unsigned char sense_valid;
136: struct request_sense sense;
137: unsigned char old_cdb;
138: };
139:
140: struct ide_channel;
141:
142: struct ide_drive {
143: char unit; /* 0: master, 1: slave */
144: char present; /* there or not */
145: char type; /* ata or atapi */
146: char media; /* disk, cdrom, etc */
147: char addressing; /* chs/lba28/lba48 */
148:
149: char model[41]; /* name */
150: int nr;
151:
152: unsigned long sectors;
153:
154: unsigned int max_sectors;
155:
156: /*
157: * for legacy chs crap
158: */
159: unsigned int cyl;
160: unsigned int head;
161: unsigned int sect;
162:
163: unsigned int bs; /* block size */
164:
165: struct ide_channel *channel;
166: };
167:
168: struct ide_channel {
169:
170: char name[32];
171: struct ide_channel *next;
172:
173: /*
174: * either mmio or io_regs is set to indicate mmio or not
175: */
176: unsigned long mmio;
177: int io_regs[10];
178:
179: /*
180: * can be set to a mmio hook, default it legacy outb/inb
181: */
182: void (*obide_outb)(struct ide_channel *chan,
183: unsigned char addr, unsigned int port);
184: unsigned char (*obide_inb)(struct ide_channel *chan,
185: unsigned int port);
186: void (*obide_insw)(struct ide_channel *chan,
187: unsigned int port, unsigned char *addr,
188: unsigned int count);
189: void (*obide_outsw)(struct ide_channel *chan,
190: unsigned int port, unsigned char *addr,
191: unsigned int count);
192:
193: struct ide_drive drives[2];
194: char selected;
195: char present;
196:
197: /*
198: * only one can be busy per channel
199: */
200: struct ata_command ata_cmd;
201: struct atapi_command atapi_cmd;
202:
203: };
204:
205: enum {
206: atapi_ddir_none,
207: atapi_ddir_read,
208: atapi_ddir_write,
209: };
210:
211: static int ob_ide_atapi_request_sense(struct ide_drive *drive);
212:
213: #endif
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.