xref: /openbmc/qemu/hw/ide/microdrive.c (revision 99d46107)
1 /*
2  * QEMU IDE Emulation: microdrive (CF / PCMCIA)
3  *
4  * Copyright (c) 2003 Fabrice Bellard
5  * Copyright (c) 2006 Openedhand Ltd.
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a copy
8  * of this software and associated documentation files (the "Software"), to deal
9  * in the Software without restriction, including without limitation the rights
10  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11  * copies of the Software, and to permit persons to whom the Software is
12  * furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice shall be included in
15  * all copies or substantial portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23  * THE SOFTWARE.
24  */
25 #include "qemu/osdep.h"
26 #include "hw/hw.h"
27 #include "hw/pcmcia.h"
28 #include "sysemu/dma.h"
29 
30 #include "hw/ide/internal.h"
31 
32 #define TYPE_MICRODRIVE "microdrive"
33 #define MICRODRIVE(obj) OBJECT_CHECK(MicroDriveState, (obj), TYPE_MICRODRIVE)
34 
35 /***********************************************************/
36 /* CF-ATA Microdrive */
37 
38 #define METADATA_SIZE	0x20
39 
40 /* DSCM-1XXXX Microdrive hard disk with CF+ II / PCMCIA interface.  */
41 
42 typedef struct MicroDriveState {
43     /*< private >*/
44     PCMCIACardState parent_obj;
45     /*< public >*/
46 
47     IDEBus bus;
48     uint32_t attr_base;
49     uint32_t io_base;
50 
51     /* Card state */
52     uint8_t opt;
53     uint8_t stat;
54     uint8_t pins;
55 
56     uint8_t ctrl;
57     uint16_t io;
58     uint8_t cycle;
59 } MicroDriveState;
60 
61 /* Register bitfields */
62 enum md_opt {
63     OPT_MODE_MMAP	= 0,
64     OPT_MODE_IOMAP16	= 1,
65     OPT_MODE_IOMAP1	= 2,
66     OPT_MODE_IOMAP2	= 3,
67     OPT_MODE		= 0x3f,
68     OPT_LEVIREQ		= 0x40,
69     OPT_SRESET		= 0x80,
70 };
71 enum md_cstat {
72     STAT_INT		= 0x02,
73     STAT_PWRDWN		= 0x04,
74     STAT_XE		= 0x10,
75     STAT_IOIS8		= 0x20,
76     STAT_SIGCHG		= 0x40,
77     STAT_CHANGED	= 0x80,
78 };
79 enum md_pins {
80     PINS_MRDY		= 0x02,
81     PINS_CRDY		= 0x20,
82 };
83 enum md_ctrl {
84     CTRL_IEN		= 0x02,
85     CTRL_SRST		= 0x04,
86 };
87 
88 static inline void md_interrupt_update(MicroDriveState *s)
89 {
90     PCMCIACardState *card = PCMCIA_CARD(s);
91 
92     if (card->slot == NULL) {
93         return;
94     }
95 
96     qemu_set_irq(card->slot->irq,
97                     !(s->stat & STAT_INT) &&	/* Inverted */
98                     !(s->ctrl & (CTRL_IEN | CTRL_SRST)) &&
99                     !(s->opt & OPT_SRESET));
100 }
101 
102 static void md_set_irq(void *opaque, int irq, int level)
103 {
104     MicroDriveState *s = opaque;
105 
106     if (level) {
107         s->stat |= STAT_INT;
108     } else {
109         s->stat &= ~STAT_INT;
110     }
111 
112     md_interrupt_update(s);
113 }
114 
115 static void md_reset(DeviceState *dev)
116 {
117     MicroDriveState *s = MICRODRIVE(dev);
118 
119     s->opt = OPT_MODE_MMAP;
120     s->stat = 0;
121     s->pins = 0;
122     s->cycle = 0;
123     s->ctrl = 0;
124     ide_bus_reset(&s->bus);
125 }
126 
127 static uint8_t md_attr_read(PCMCIACardState *card, uint32_t at)
128 {
129     MicroDriveState *s = MICRODRIVE(card);
130     PCMCIACardClass *pcc = PCMCIA_CARD_GET_CLASS(card);
131 
132     if (at < s->attr_base) {
133         if (at < pcc->cis_len) {
134             return pcc->cis[at];
135         } else {
136             return 0x00;
137         }
138     }
139 
140     at -= s->attr_base;
141 
142     switch (at) {
143     case 0x00:	/* Configuration Option Register */
144         return s->opt;
145     case 0x02:	/* Card Configuration Status Register */
146         if (s->ctrl & CTRL_IEN) {
147             return s->stat & ~STAT_INT;
148         } else {
149             return s->stat;
150         }
151     case 0x04:	/* Pin Replacement Register */
152         return (s->pins & PINS_CRDY) | 0x0c;
153     case 0x06:	/* Socket and Copy Register */
154         return 0x00;
155 #ifdef VERBOSE
156     default:
157         printf("%s: Bad attribute space register %02x\n", __func__, at);
158 #endif
159     }
160 
161     return 0;
162 }
163 
164 static void md_attr_write(PCMCIACardState *card, uint32_t at, uint8_t value)
165 {
166     MicroDriveState *s = MICRODRIVE(card);
167 
168     at -= s->attr_base;
169 
170     switch (at) {
171     case 0x00:	/* Configuration Option Register */
172         s->opt = value & 0xcf;
173         if (value & OPT_SRESET) {
174             device_reset(DEVICE(s));
175         }
176         md_interrupt_update(s);
177         break;
178     case 0x02:	/* Card Configuration Status Register */
179         if ((s->stat ^ value) & STAT_PWRDWN) {
180             s->pins |= PINS_CRDY;
181         }
182         s->stat &= 0x82;
183         s->stat |= value & 0x74;
184         md_interrupt_update(s);
185         /* Word 170 in Identify Device must be equal to STAT_XE */
186         break;
187     case 0x04:	/* Pin Replacement Register */
188         s->pins &= PINS_CRDY;
189         s->pins |= value & PINS_MRDY;
190         break;
191     case 0x06:	/* Socket and Copy Register */
192         break;
193     default:
194         printf("%s: Bad attribute space register %02x\n", __func__, at);
195     }
196 }
197 
198 static uint16_t md_common_read(PCMCIACardState *card, uint32_t at)
199 {
200     MicroDriveState *s = MICRODRIVE(card);
201     IDEState *ifs;
202     uint16_t ret;
203     at -= s->io_base;
204 
205     switch (s->opt & OPT_MODE) {
206     case OPT_MODE_MMAP:
207         if ((at & ~0x3ff) == 0x400) {
208             at = 0;
209         }
210         break;
211     case OPT_MODE_IOMAP16:
212         at &= 0xf;
213         break;
214     case OPT_MODE_IOMAP1:
215         if ((at & ~0xf) == 0x3f0) {
216             at -= 0x3e8;
217         } else if ((at & ~0xf) == 0x1f0) {
218             at -= 0x1f0;
219         }
220         break;
221     case OPT_MODE_IOMAP2:
222         if ((at & ~0xf) == 0x370) {
223             at -= 0x368;
224         } else if ((at & ~0xf) == 0x170) {
225             at -= 0x170;
226         }
227     }
228 
229     switch (at) {
230     case 0x0:	/* Even RD Data */
231     case 0x8:
232         return ide_data_readw(&s->bus, 0);
233 
234         /* TODO: 8-bit accesses */
235         if (s->cycle) {
236             ret = s->io >> 8;
237         } else {
238             s->io = ide_data_readw(&s->bus, 0);
239             ret = s->io & 0xff;
240         }
241         s->cycle = !s->cycle;
242         return ret;
243     case 0x9:	/* Odd RD Data */
244         return s->io >> 8;
245     case 0xd:	/* Error */
246         return ide_ioport_read(&s->bus, 0x1);
247     case 0xe:	/* Alternate Status */
248         ifs = idebus_active_if(&s->bus);
249         if (ifs->blk) {
250             return ifs->status;
251         } else {
252             return 0;
253         }
254     case 0xf:	/* Device Address */
255         ifs = idebus_active_if(&s->bus);
256         return 0xc2 | ((~ifs->select << 2) & 0x3c);
257     default:
258         return ide_ioport_read(&s->bus, at);
259     }
260 
261     return 0;
262 }
263 
264 static void md_common_write(PCMCIACardState *card, uint32_t at, uint16_t value)
265 {
266     MicroDriveState *s = MICRODRIVE(card);
267     at -= s->io_base;
268 
269     switch (s->opt & OPT_MODE) {
270     case OPT_MODE_MMAP:
271         if ((at & ~0x3ff) == 0x400) {
272             at = 0;
273         }
274         break;
275     case OPT_MODE_IOMAP16:
276         at &= 0xf;
277         break;
278     case OPT_MODE_IOMAP1:
279         if ((at & ~0xf) == 0x3f0) {
280             at -= 0x3e8;
281         } else if ((at & ~0xf) == 0x1f0) {
282             at -= 0x1f0;
283         }
284         break;
285     case OPT_MODE_IOMAP2:
286         if ((at & ~0xf) == 0x370) {
287             at -= 0x368;
288         } else if ((at & ~0xf) == 0x170) {
289             at -= 0x170;
290         }
291     }
292 
293     switch (at) {
294     case 0x0:	/* Even WR Data */
295     case 0x8:
296         ide_data_writew(&s->bus, 0, value);
297         break;
298 
299         /* TODO: 8-bit accesses */
300         if (s->cycle) {
301             ide_data_writew(&s->bus, 0, s->io | (value << 8));
302         } else {
303             s->io = value & 0xff;
304         }
305         s->cycle = !s->cycle;
306         break;
307     case 0x9:
308         s->io = value & 0xff;
309         s->cycle = !s->cycle;
310         break;
311     case 0xd:	/* Features */
312         ide_ioport_write(&s->bus, 0x1, value);
313         break;
314     case 0xe:	/* Device Control */
315         s->ctrl = value;
316         if (value & CTRL_SRST) {
317             device_reset(DEVICE(s));
318         }
319         md_interrupt_update(s);
320         break;
321     default:
322         if (s->stat & STAT_PWRDWN) {
323             s->pins |= PINS_CRDY;
324             s->stat &= ~STAT_PWRDWN;
325         }
326         ide_ioport_write(&s->bus, at, value);
327     }
328 }
329 
330 static const VMStateDescription vmstate_microdrive = {
331     .name = "microdrive",
332     .version_id = 3,
333     .minimum_version_id = 0,
334     .fields = (VMStateField[]) {
335         VMSTATE_UINT8(opt, MicroDriveState),
336         VMSTATE_UINT8(stat, MicroDriveState),
337         VMSTATE_UINT8(pins, MicroDriveState),
338         VMSTATE_UINT8(ctrl, MicroDriveState),
339         VMSTATE_UINT16(io, MicroDriveState),
340         VMSTATE_UINT8(cycle, MicroDriveState),
341         VMSTATE_IDE_BUS(bus, MicroDriveState),
342         VMSTATE_IDE_DRIVES(bus.ifs, MicroDriveState),
343         VMSTATE_END_OF_LIST()
344     }
345 };
346 
347 static const uint8_t dscm1xxxx_cis[0x14a] = {
348     [0x000] = CISTPL_DEVICE,	/* 5V Device Information */
349     [0x002] = 0x03,		/* Tuple length = 4 bytes */
350     [0x004] = 0xdb,		/* ID: DTYPE_FUNCSPEC, non WP, DSPEED_150NS */
351     [0x006] = 0x01,		/* Size = 2K bytes */
352     [0x008] = CISTPL_ENDMARK,
353 
354     [0x00a] = CISTPL_DEVICE_OC,	/* Additional Device Information */
355     [0x00c] = 0x04,		/* Tuple length = 4 byest */
356     [0x00e] = 0x03,		/* Conditions: Ext = 0, Vcc 3.3V, MWAIT = 1 */
357     [0x010] = 0xdb,		/* ID: DTYPE_FUNCSPEC, non WP, DSPEED_150NS */
358     [0x012] = 0x01,		/* Size = 2K bytes */
359     [0x014] = CISTPL_ENDMARK,
360 
361     [0x016] = CISTPL_JEDEC_C,	/* JEDEC ID */
362     [0x018] = 0x02,		/* Tuple length = 2 bytes */
363     [0x01a] = 0xdf,		/* PC Card ATA with no Vpp required */
364     [0x01c] = 0x01,
365 
366     [0x01e] = CISTPL_MANFID,	/* Manufacture ID */
367     [0x020] = 0x04,		/* Tuple length = 4 bytes */
368     [0x022] = 0xa4,		/* TPLMID_MANF = 00a4 (IBM) */
369     [0x024] = 0x00,
370     [0x026] = 0x00,		/* PLMID_CARD = 0000 */
371     [0x028] = 0x00,
372 
373     [0x02a] = CISTPL_VERS_1,	/* Level 1 Version */
374     [0x02c] = 0x12,		/* Tuple length = 23 bytes */
375     [0x02e] = 0x04,		/* Major Version = JEIDA 4.2 / PCMCIA 2.1 */
376     [0x030] = 0x01,		/* Minor Version = 1 */
377     [0x032] = 'I',
378     [0x034] = 'B',
379     [0x036] = 'M',
380     [0x038] = 0x00,
381     [0x03a] = 'm',
382     [0x03c] = 'i',
383     [0x03e] = 'c',
384     [0x040] = 'r',
385     [0x042] = 'o',
386     [0x044] = 'd',
387     [0x046] = 'r',
388     [0x048] = 'i',
389     [0x04a] = 'v',
390     [0x04c] = 'e',
391     [0x04e] = 0x00,
392     [0x050] = CISTPL_ENDMARK,
393 
394     [0x052] = CISTPL_FUNCID,	/* Function ID */
395     [0x054] = 0x02,		/* Tuple length = 2 bytes */
396     [0x056] = 0x04,		/* TPLFID_FUNCTION = Fixed Disk */
397     [0x058] = 0x01,		/* TPLFID_SYSINIT: POST = 1, ROM = 0 */
398 
399     [0x05a] = CISTPL_FUNCE,	/* Function Extension */
400     [0x05c] = 0x02,		/* Tuple length = 2 bytes */
401     [0x05e] = 0x01,		/* TPLFE_TYPE = Disk Device Interface */
402     [0x060] = 0x01,		/* TPLFE_DATA = PC Card ATA Interface */
403 
404     [0x062] = CISTPL_FUNCE,	/* Function Extension */
405     [0x064] = 0x03,		/* Tuple length = 3 bytes */
406     [0x066] = 0x02,		/* TPLFE_TYPE = Basic PC Card ATA Interface */
407     [0x068] = 0x08,		/* TPLFE_DATA: Rotating, Unique, Single */
408     [0x06a] = 0x0f,		/* TPLFE_DATA: Sleep, Standby, Idle, Auto */
409 
410     [0x06c] = CISTPL_CONFIG,	/* Configuration */
411     [0x06e] = 0x05,		/* Tuple length = 5 bytes */
412     [0x070] = 0x01,		/* TPCC_RASZ = 2 bytes, TPCC_RMSZ = 1 byte */
413     [0x072] = 0x07,		/* TPCC_LAST = 7 */
414     [0x074] = 0x00,		/* TPCC_RADR = 0200 */
415     [0x076] = 0x02,
416     [0x078] = 0x0f,		/* TPCC_RMSK = 200, 202, 204, 206 */
417 
418     [0x07a] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
419     [0x07c] = 0x0b,		/* Tuple length = 11 bytes */
420     [0x07e] = 0xc0,		/* TPCE_INDX = Memory Mode, Default, Iface */
421     [0x080] = 0xc0,		/* TPCE_IF = Memory, no BVDs, no WP, READY */
422     [0x082] = 0xa1,		/* TPCE_FS = Vcc only, no I/O, Memory, Misc */
423     [0x084] = 0x27,		/* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
424     [0x086] = 0x55,		/* NomV: 5.0 V */
425     [0x088] = 0x4d,		/* MinV: 4.5 V */
426     [0x08a] = 0x5d,		/* MaxV: 5.5 V */
427     [0x08c] = 0x4e,		/* Peakl: 450 mA */
428     [0x08e] = 0x08,		/* TPCE_MS = 1 window, 1 byte, Host address */
429     [0x090] = 0x00,		/* Window descriptor: Window length = 0 */
430     [0x092] = 0x20,		/* TPCE_MI: support power down mode, RW */
431 
432     [0x094] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
433     [0x096] = 0x06,		/* Tuple length = 6 bytes */
434     [0x098] = 0x00,		/* TPCE_INDX = Memory Mode, no Default */
435     [0x09a] = 0x01,		/* TPCE_FS = Vcc only, no I/O, no Memory */
436     [0x09c] = 0x21,		/* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
437     [0x09e] = 0xb5,		/* NomV: 3.3 V */
438     [0x0a0] = 0x1e,
439     [0x0a2] = 0x3e,		/* Peakl: 350 mA */
440 
441     [0x0a4] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
442     [0x0a6] = 0x0d,		/* Tuple length = 13 bytes */
443     [0x0a8] = 0xc1,		/* TPCE_INDX = I/O and Memory Mode, Default */
444     [0x0aa] = 0x41,		/* TPCE_IF = I/O and Memory, no BVD, no WP */
445     [0x0ac] = 0x99,		/* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
446     [0x0ae] = 0x27,		/* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
447     [0x0b0] = 0x55,		/* NomV: 5.0 V */
448     [0x0b2] = 0x4d,		/* MinV: 4.5 V */
449     [0x0b4] = 0x5d,		/* MaxV: 5.5 V */
450     [0x0b6] = 0x4e,		/* Peakl: 450 mA */
451     [0x0b8] = 0x64,		/* TPCE_IO = 16-byte boundary, 16/8 accesses */
452     [0x0ba] = 0xf0,		/* TPCE_IR =  MASK, Level, Pulse, Share */
453     [0x0bc] = 0xff,		/* IRQ0..IRQ7 supported */
454     [0x0be] = 0xff,		/* IRQ8..IRQ15 supported */
455     [0x0c0] = 0x20,		/* TPCE_MI = support power down mode */
456 
457     [0x0c2] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
458     [0x0c4] = 0x06,		/* Tuple length = 6 bytes */
459     [0x0c6] = 0x01,		/* TPCE_INDX = I/O and Memory Mode */
460     [0x0c8] = 0x01,		/* TPCE_FS = Vcc only, no I/O, no Memory */
461     [0x0ca] = 0x21,		/* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
462     [0x0cc] = 0xb5,		/* NomV: 3.3 V */
463     [0x0ce] = 0x1e,
464     [0x0d0] = 0x3e,		/* Peakl: 350 mA */
465 
466     [0x0d2] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
467     [0x0d4] = 0x12,		/* Tuple length = 18 bytes */
468     [0x0d6] = 0xc2,		/* TPCE_INDX = I/O Primary Mode */
469     [0x0d8] = 0x41,		/* TPCE_IF = I/O and Memory, no BVD, no WP */
470     [0x0da] = 0x99,		/* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
471     [0x0dc] = 0x27,		/* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
472     [0x0de] = 0x55,		/* NomV: 5.0 V */
473     [0x0e0] = 0x4d,		/* MinV: 4.5 V */
474     [0x0e2] = 0x5d,		/* MaxV: 5.5 V */
475     [0x0e4] = 0x4e,		/* Peakl: 450 mA */
476     [0x0e6] = 0xea,		/* TPCE_IO = 1K boundary, 16/8 access, Range */
477     [0x0e8] = 0x61,		/* Range: 2 fields, 2 bytes addr, 1 byte len */
478     [0x0ea] = 0xf0,		/* Field 1 address = 0x01f0 */
479     [0x0ec] = 0x01,
480     [0x0ee] = 0x07,		/* Address block length = 8 */
481     [0x0f0] = 0xf6,		/* Field 2 address = 0x03f6 */
482     [0x0f2] = 0x03,
483     [0x0f4] = 0x01,		/* Address block length = 2 */
484     [0x0f6] = 0xee,		/* TPCE_IR = IRQ E, Level, Pulse, Share */
485     [0x0f8] = 0x20,		/* TPCE_MI = support power down mode */
486 
487     [0x0fa] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
488     [0x0fc] = 0x06,		/* Tuple length = 6 bytes */
489     [0x0fe] = 0x02,		/* TPCE_INDX = I/O Primary Mode, no Default */
490     [0x100] = 0x01,		/* TPCE_FS = Vcc only, no I/O, no Memory */
491     [0x102] = 0x21,		/* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
492     [0x104] = 0xb5,		/* NomV: 3.3 V */
493     [0x106] = 0x1e,
494     [0x108] = 0x3e,		/* Peakl: 350 mA */
495 
496     [0x10a] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
497     [0x10c] = 0x12,		/* Tuple length = 18 bytes */
498     [0x10e] = 0xc3,		/* TPCE_INDX = I/O Secondary Mode, Default */
499     [0x110] = 0x41,		/* TPCE_IF = I/O and Memory, no BVD, no WP */
500     [0x112] = 0x99,		/* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
501     [0x114] = 0x27,		/* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
502     [0x116] = 0x55,		/* NomV: 5.0 V */
503     [0x118] = 0x4d,		/* MinV: 4.5 V */
504     [0x11a] = 0x5d,		/* MaxV: 5.5 V */
505     [0x11c] = 0x4e,		/* Peakl: 450 mA */
506     [0x11e] = 0xea,		/* TPCE_IO = 1K boundary, 16/8 access, Range */
507     [0x120] = 0x61,		/* Range: 2 fields, 2 byte addr, 1 byte len */
508     [0x122] = 0x70,		/* Field 1 address = 0x0170 */
509     [0x124] = 0x01,
510     [0x126] = 0x07,		/* Address block length = 8 */
511     [0x128] = 0x76,		/* Field 2 address = 0x0376 */
512     [0x12a] = 0x03,
513     [0x12c] = 0x01,		/* Address block length = 2 */
514     [0x12e] = 0xee,		/* TPCE_IR = IRQ E, Level, Pulse, Share */
515     [0x130] = 0x20,		/* TPCE_MI = support power down mode */
516 
517     [0x132] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
518     [0x134] = 0x06,		/* Tuple length = 6 bytes */
519     [0x136] = 0x03,		/* TPCE_INDX = I/O Secondary Mode */
520     [0x138] = 0x01,		/* TPCE_FS = Vcc only, no I/O, no Memory */
521     [0x13a] = 0x21,		/* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
522     [0x13c] = 0xb5,		/* NomV: 3.3 V */
523     [0x13e] = 0x1e,
524     [0x140] = 0x3e,		/* Peakl: 350 mA */
525 
526     [0x142] = CISTPL_NO_LINK,	/* No Link */
527     [0x144] = 0x00,		/* Tuple length = 0 bytes */
528 
529     [0x146] = CISTPL_END,	/* Tuple End */
530 };
531 
532 #define TYPE_DSCM1XXXX "dscm1xxxx"
533 
534 static int dscm1xxxx_attach(PCMCIACardState *card)
535 {
536     MicroDriveState *md = MICRODRIVE(card);
537     PCMCIACardClass *pcc = PCMCIA_CARD_GET_CLASS(card);
538 
539     md->attr_base = pcc->cis[0x74] | (pcc->cis[0x76] << 8);
540     md->io_base = 0x0;
541 
542     device_reset(DEVICE(md));
543     md_interrupt_update(md);
544 
545     return 0;
546 }
547 
548 static int dscm1xxxx_detach(PCMCIACardState *card)
549 {
550     MicroDriveState *md = MICRODRIVE(card);
551 
552     device_reset(DEVICE(md));
553     return 0;
554 }
555 
556 PCMCIACardState *dscm1xxxx_init(DriveInfo *dinfo)
557 {
558     MicroDriveState *md;
559 
560     md = MICRODRIVE(object_new(TYPE_DSCM1XXXX));
561     qdev_init_nofail(DEVICE(md));
562 
563     if (dinfo != NULL) {
564         ide_create_drive(&md->bus, 0, dinfo);
565     }
566     md->bus.ifs[0].drive_kind = IDE_CFATA;
567     md->bus.ifs[0].mdata_size = METADATA_SIZE;
568     md->bus.ifs[0].mdata_storage = g_malloc0(METADATA_SIZE);
569 
570     return PCMCIA_CARD(md);
571 }
572 
573 static void dscm1xxxx_class_init(ObjectClass *oc, void *data)
574 {
575     PCMCIACardClass *pcc = PCMCIA_CARD_CLASS(oc);
576     DeviceClass *dc = DEVICE_CLASS(oc);
577 
578     pcc->cis = dscm1xxxx_cis;
579     pcc->cis_len = sizeof(dscm1xxxx_cis);
580 
581     pcc->attach = dscm1xxxx_attach;
582     pcc->detach = dscm1xxxx_detach;
583     /* Reason: Needs to be wired-up in code, see dscm1xxxx_init() */
584     dc->user_creatable = false;
585 }
586 
587 static const TypeInfo dscm1xxxx_type_info = {
588     .name = TYPE_DSCM1XXXX,
589     .parent = TYPE_MICRODRIVE,
590     .class_init = dscm1xxxx_class_init,
591 };
592 
593 static void microdrive_realize(DeviceState *dev, Error **errp)
594 {
595     MicroDriveState *md = MICRODRIVE(dev);
596 
597     ide_init2(&md->bus, qemu_allocate_irq(md_set_irq, md, 0));
598 }
599 
600 static void microdrive_init(Object *obj)
601 {
602     MicroDriveState *md = MICRODRIVE(obj);
603 
604     ide_bus_new(&md->bus, sizeof(md->bus), DEVICE(obj), 0, 1);
605 }
606 
607 static void microdrive_class_init(ObjectClass *oc, void *data)
608 {
609     DeviceClass *dc = DEVICE_CLASS(oc);
610     PCMCIACardClass *pcc = PCMCIA_CARD_CLASS(oc);
611 
612     pcc->attr_read = md_attr_read;
613     pcc->attr_write = md_attr_write;
614     pcc->common_read = md_common_read;
615     pcc->common_write = md_common_write;
616     pcc->io_read = md_common_read;
617     pcc->io_write = md_common_write;
618 
619     dc->realize = microdrive_realize;
620     dc->reset = md_reset;
621     dc->vmsd = &vmstate_microdrive;
622 }
623 
624 static const TypeInfo microdrive_type_info = {
625     .name = TYPE_MICRODRIVE,
626     .parent = TYPE_PCMCIA_CARD,
627     .instance_size = sizeof(MicroDriveState),
628     .instance_init = microdrive_init,
629     .abstract = true,
630     .class_init = microdrive_class_init,
631 };
632 
633 static void microdrive_register_types(void)
634 {
635     type_register_static(&microdrive_type_info);
636     type_register_static(&dscm1xxxx_type_info);
637 }
638 
639 type_init(microdrive_register_types)
640