xref: /openbmc/qemu/hw/ide/microdrive.c (revision e1723999)
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 
26 #include "qemu/osdep.h"
27 #include "hw/pcmcia.h"
28 #include "migration/vmstate.h"
29 #include "qapi/error.h"
30 #include "qemu/module.h"
31 #include "sysemu/dma.h"
32 
33 #include "hw/ide/internal.h"
34 #include "qom/object.h"
35 
36 #define TYPE_MICRODRIVE "microdrive"
37 OBJECT_DECLARE_SIMPLE_TYPE(MicroDriveState, MICRODRIVE)
38 
39 /***********************************************************/
40 /* CF-ATA Microdrive */
41 
42 #define METADATA_SIZE	0x20
43 
44 /* DSCM-1XXXX Microdrive hard disk with CF+ II / PCMCIA interface.  */
45 
46 struct MicroDriveState {
47     /*< private >*/
48     PCMCIACardState parent_obj;
49     /*< public >*/
50 
51     IDEBus bus;
52     uint32_t attr_base;
53     uint32_t io_base;
54 
55     /* Card state */
56     uint8_t opt;
57     uint8_t stat;
58     uint8_t pins;
59 
60     uint8_t ctrl;
61     uint16_t io;
62     uint8_t cycle;
63 };
64 
65 /* Register bitfields */
66 enum md_opt {
67     OPT_MODE_MMAP	= 0,
68     OPT_MODE_IOMAP16	= 1,
69     OPT_MODE_IOMAP1	= 2,
70     OPT_MODE_IOMAP2	= 3,
71     OPT_MODE		= 0x3f,
72     OPT_LEVIREQ		= 0x40,
73     OPT_SRESET		= 0x80,
74 };
75 enum md_cstat {
76     STAT_INT		= 0x02,
77     STAT_PWRDWN		= 0x04,
78     STAT_XE		= 0x10,
79     STAT_IOIS8		= 0x20,
80     STAT_SIGCHG		= 0x40,
81     STAT_CHANGED	= 0x80,
82 };
83 enum md_pins {
84     PINS_MRDY		= 0x02,
85     PINS_CRDY		= 0x20,
86 };
87 enum md_ctrl {
88     CTRL_IEN		= 0x02,
89     CTRL_SRST		= 0x04,
90 };
91 
92 static inline void md_interrupt_update(MicroDriveState *s)
93 {
94     PCMCIACardState *card = PCMCIA_CARD(s);
95 
96     if (card->slot == NULL) {
97         return;
98     }
99 
100     qemu_set_irq(card->slot->irq,
101                     !(s->stat & STAT_INT) &&	/* Inverted */
102                     !(s->ctrl & (CTRL_IEN | CTRL_SRST)) &&
103                     !(s->opt & OPT_SRESET));
104 }
105 
106 static void md_set_irq(void *opaque, int irq, int level)
107 {
108     MicroDriveState *s = opaque;
109 
110     if (level) {
111         s->stat |= STAT_INT;
112     } else {
113         s->stat &= ~STAT_INT;
114     }
115 
116     md_interrupt_update(s);
117 }
118 
119 static void md_reset(DeviceState *dev)
120 {
121     MicroDriveState *s = MICRODRIVE(dev);
122 
123     s->opt = OPT_MODE_MMAP;
124     s->stat = 0;
125     s->pins = 0;
126     s->cycle = 0;
127     s->ctrl = 0;
128     ide_bus_reset(&s->bus);
129 }
130 
131 static uint8_t md_attr_read(PCMCIACardState *card, uint32_t at)
132 {
133     MicroDriveState *s = MICRODRIVE(card);
134     PCMCIACardClass *pcc = PCMCIA_CARD_GET_CLASS(card);
135 
136     if (at < s->attr_base) {
137         if (at < pcc->cis_len) {
138             return pcc->cis[at];
139         } else {
140             return 0x00;
141         }
142     }
143 
144     at -= s->attr_base;
145 
146     switch (at) {
147     case 0x00:	/* Configuration Option Register */
148         return s->opt;
149     case 0x02:	/* Card Configuration Status Register */
150         if (s->ctrl & CTRL_IEN) {
151             return s->stat & ~STAT_INT;
152         } else {
153             return s->stat;
154         }
155     case 0x04:	/* Pin Replacement Register */
156         return (s->pins & PINS_CRDY) | 0x0c;
157     case 0x06:	/* Socket and Copy Register */
158         return 0x00;
159 #ifdef VERBOSE
160     default:
161         printf("%s: Bad attribute space register %02x\n", __func__, at);
162 #endif
163     }
164 
165     return 0;
166 }
167 
168 static void md_attr_write(PCMCIACardState *card, uint32_t at, uint8_t value)
169 {
170     MicroDriveState *s = MICRODRIVE(card);
171 
172     at -= s->attr_base;
173 
174     switch (at) {
175     case 0x00:	/* Configuration Option Register */
176         s->opt = value & 0xcf;
177         if (value & OPT_SRESET) {
178             device_legacy_reset(DEVICE(s));
179         }
180         md_interrupt_update(s);
181         break;
182     case 0x02:	/* Card Configuration Status Register */
183         if ((s->stat ^ value) & STAT_PWRDWN) {
184             s->pins |= PINS_CRDY;
185         }
186         s->stat &= 0x82;
187         s->stat |= value & 0x74;
188         md_interrupt_update(s);
189         /* Word 170 in Identify Device must be equal to STAT_XE */
190         break;
191     case 0x04:	/* Pin Replacement Register */
192         s->pins &= PINS_CRDY;
193         s->pins |= value & PINS_MRDY;
194         break;
195     case 0x06:	/* Socket and Copy Register */
196         break;
197     default:
198         printf("%s: Bad attribute space register %02x\n", __func__, at);
199     }
200 }
201 
202 static uint16_t md_common_read(PCMCIACardState *card, uint32_t at)
203 {
204     MicroDriveState *s = MICRODRIVE(card);
205     IDEState *ifs;
206     uint16_t ret;
207     at -= s->io_base;
208 
209     switch (s->opt & OPT_MODE) {
210     case OPT_MODE_MMAP:
211         if ((at & ~0x3ff) == 0x400) {
212             at = 0;
213         }
214         break;
215     case OPT_MODE_IOMAP16:
216         at &= 0xf;
217         break;
218     case OPT_MODE_IOMAP1:
219         if ((at & ~0xf) == 0x3f0) {
220             at -= 0x3e8;
221         } else if ((at & ~0xf) == 0x1f0) {
222             at -= 0x1f0;
223         }
224         break;
225     case OPT_MODE_IOMAP2:
226         if ((at & ~0xf) == 0x370) {
227             at -= 0x368;
228         } else if ((at & ~0xf) == 0x170) {
229             at -= 0x170;
230         }
231     }
232 
233     switch (at) {
234     case 0x0:	/* Even RD Data */
235     case 0x8:
236         return ide_data_readw(&s->bus, 0);
237 
238         /* TODO: 8-bit accesses */
239         if (s->cycle) {
240             ret = s->io >> 8;
241         } else {
242             s->io = ide_data_readw(&s->bus, 0);
243             ret = s->io & 0xff;
244         }
245         s->cycle = !s->cycle;
246         return ret;
247     case 0x9:	/* Odd RD Data */
248         return s->io >> 8;
249     case 0xd:	/* Error */
250         return ide_ioport_read(&s->bus, 0x1);
251     case 0xe:	/* Alternate Status */
252         ifs = idebus_active_if(&s->bus);
253         if (ifs->blk) {
254             return ifs->status;
255         } else {
256             return 0;
257         }
258     case 0xf:	/* Device Address */
259         ifs = idebus_active_if(&s->bus);
260         return 0xc2 | ((~ifs->select << 2) & 0x3c);
261     default:
262         return ide_ioport_read(&s->bus, at);
263     }
264 
265     return 0;
266 }
267 
268 static void md_common_write(PCMCIACardState *card, uint32_t at, uint16_t value)
269 {
270     MicroDriveState *s = MICRODRIVE(card);
271     at -= s->io_base;
272 
273     switch (s->opt & OPT_MODE) {
274     case OPT_MODE_MMAP:
275         if ((at & ~0x3ff) == 0x400) {
276             at = 0;
277         }
278         break;
279     case OPT_MODE_IOMAP16:
280         at &= 0xf;
281         break;
282     case OPT_MODE_IOMAP1:
283         if ((at & ~0xf) == 0x3f0) {
284             at -= 0x3e8;
285         } else if ((at & ~0xf) == 0x1f0) {
286             at -= 0x1f0;
287         }
288         break;
289     case OPT_MODE_IOMAP2:
290         if ((at & ~0xf) == 0x370) {
291             at -= 0x368;
292         } else if ((at & ~0xf) == 0x170) {
293             at -= 0x170;
294         }
295     }
296 
297     switch (at) {
298     case 0x0:	/* Even WR Data */
299     case 0x8:
300         ide_data_writew(&s->bus, 0, value);
301         break;
302 
303         /* TODO: 8-bit accesses */
304         if (s->cycle) {
305             ide_data_writew(&s->bus, 0, s->io | (value << 8));
306         } else {
307             s->io = value & 0xff;
308         }
309         s->cycle = !s->cycle;
310         break;
311     case 0x9:
312         s->io = value & 0xff;
313         s->cycle = !s->cycle;
314         break;
315     case 0xd:	/* Features */
316         ide_ioport_write(&s->bus, 0x1, value);
317         break;
318     case 0xe:	/* Device Control */
319         s->ctrl = value;
320         if (value & CTRL_SRST) {
321             device_legacy_reset(DEVICE(s));
322         }
323         md_interrupt_update(s);
324         break;
325     default:
326         if (s->stat & STAT_PWRDWN) {
327             s->pins |= PINS_CRDY;
328             s->stat &= ~STAT_PWRDWN;
329         }
330         ide_ioport_write(&s->bus, at, value);
331     }
332 }
333 
334 static const VMStateDescription vmstate_microdrive = {
335     .name = "microdrive",
336     .version_id = 3,
337     .minimum_version_id = 0,
338     .fields = (VMStateField[]) {
339         VMSTATE_UINT8(opt, MicroDriveState),
340         VMSTATE_UINT8(stat, MicroDriveState),
341         VMSTATE_UINT8(pins, MicroDriveState),
342         VMSTATE_UINT8(ctrl, MicroDriveState),
343         VMSTATE_UINT16(io, MicroDriveState),
344         VMSTATE_UINT8(cycle, MicroDriveState),
345         VMSTATE_IDE_BUS(bus, MicroDriveState),
346         VMSTATE_IDE_DRIVES(bus.ifs, MicroDriveState),
347         VMSTATE_END_OF_LIST()
348     }
349 };
350 
351 static const uint8_t dscm1xxxx_cis[0x14a] = {
352     [0x000] = CISTPL_DEVICE,	/* 5V Device Information */
353     [0x002] = 0x03,		/* Tuple length = 4 bytes */
354     [0x004] = 0xdb,		/* ID: DTYPE_FUNCSPEC, non WP, DSPEED_150NS */
355     [0x006] = 0x01,		/* Size = 2K bytes */
356     [0x008] = CISTPL_ENDMARK,
357 
358     [0x00a] = CISTPL_DEVICE_OC,	/* Additional Device Information */
359     [0x00c] = 0x04,		/* Tuple length = 4 byest */
360     [0x00e] = 0x03,		/* Conditions: Ext = 0, Vcc 3.3V, MWAIT = 1 */
361     [0x010] = 0xdb,		/* ID: DTYPE_FUNCSPEC, non WP, DSPEED_150NS */
362     [0x012] = 0x01,		/* Size = 2K bytes */
363     [0x014] = CISTPL_ENDMARK,
364 
365     [0x016] = CISTPL_JEDEC_C,	/* JEDEC ID */
366     [0x018] = 0x02,		/* Tuple length = 2 bytes */
367     [0x01a] = 0xdf,		/* PC Card ATA with no Vpp required */
368     [0x01c] = 0x01,
369 
370     [0x01e] = CISTPL_MANFID,	/* Manufacture ID */
371     [0x020] = 0x04,		/* Tuple length = 4 bytes */
372     [0x022] = 0xa4,		/* TPLMID_MANF = 00a4 (IBM) */
373     [0x024] = 0x00,
374     [0x026] = 0x00,		/* PLMID_CARD = 0000 */
375     [0x028] = 0x00,
376 
377     [0x02a] = CISTPL_VERS_1,	/* Level 1 Version */
378     [0x02c] = 0x12,		/* Tuple length = 23 bytes */
379     [0x02e] = 0x04,		/* Major Version = JEIDA 4.2 / PCMCIA 2.1 */
380     [0x030] = 0x01,		/* Minor Version = 1 */
381     [0x032] = 'I',
382     [0x034] = 'B',
383     [0x036] = 'M',
384     [0x038] = 0x00,
385     [0x03a] = 'm',
386     [0x03c] = 'i',
387     [0x03e] = 'c',
388     [0x040] = 'r',
389     [0x042] = 'o',
390     [0x044] = 'd',
391     [0x046] = 'r',
392     [0x048] = 'i',
393     [0x04a] = 'v',
394     [0x04c] = 'e',
395     [0x04e] = 0x00,
396     [0x050] = CISTPL_ENDMARK,
397 
398     [0x052] = CISTPL_FUNCID,	/* Function ID */
399     [0x054] = 0x02,		/* Tuple length = 2 bytes */
400     [0x056] = 0x04,		/* TPLFID_FUNCTION = Fixed Disk */
401     [0x058] = 0x01,		/* TPLFID_SYSINIT: POST = 1, ROM = 0 */
402 
403     [0x05a] = CISTPL_FUNCE,	/* Function Extension */
404     [0x05c] = 0x02,		/* Tuple length = 2 bytes */
405     [0x05e] = 0x01,		/* TPLFE_TYPE = Disk Device Interface */
406     [0x060] = 0x01,		/* TPLFE_DATA = PC Card ATA Interface */
407 
408     [0x062] = CISTPL_FUNCE,	/* Function Extension */
409     [0x064] = 0x03,		/* Tuple length = 3 bytes */
410     [0x066] = 0x02,		/* TPLFE_TYPE = Basic PC Card ATA Interface */
411     [0x068] = 0x08,		/* TPLFE_DATA: Rotating, Unique, Single */
412     [0x06a] = 0x0f,		/* TPLFE_DATA: Sleep, Standby, Idle, Auto */
413 
414     [0x06c] = CISTPL_CONFIG,	/* Configuration */
415     [0x06e] = 0x05,		/* Tuple length = 5 bytes */
416     [0x070] = 0x01,		/* TPCC_RASZ = 2 bytes, TPCC_RMSZ = 1 byte */
417     [0x072] = 0x07,		/* TPCC_LAST = 7 */
418     [0x074] = 0x00,		/* TPCC_RADR = 0200 */
419     [0x076] = 0x02,
420     [0x078] = 0x0f,		/* TPCC_RMSK = 200, 202, 204, 206 */
421 
422     [0x07a] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
423     [0x07c] = 0x0b,		/* Tuple length = 11 bytes */
424     [0x07e] = 0xc0,		/* TPCE_INDX = Memory Mode, Default, Iface */
425     [0x080] = 0xc0,		/* TPCE_IF = Memory, no BVDs, no WP, READY */
426     [0x082] = 0xa1,		/* TPCE_FS = Vcc only, no I/O, Memory, Misc */
427     [0x084] = 0x27,		/* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
428     [0x086] = 0x55,		/* NomV: 5.0 V */
429     [0x088] = 0x4d,		/* MinV: 4.5 V */
430     [0x08a] = 0x5d,		/* MaxV: 5.5 V */
431     [0x08c] = 0x4e,		/* Peakl: 450 mA */
432     [0x08e] = 0x08,		/* TPCE_MS = 1 window, 1 byte, Host address */
433     [0x090] = 0x00,		/* Window descriptor: Window length = 0 */
434     [0x092] = 0x20,		/* TPCE_MI: support power down mode, RW */
435 
436     [0x094] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
437     [0x096] = 0x06,		/* Tuple length = 6 bytes */
438     [0x098] = 0x00,		/* TPCE_INDX = Memory Mode, no Default */
439     [0x09a] = 0x01,		/* TPCE_FS = Vcc only, no I/O, no Memory */
440     [0x09c] = 0x21,		/* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
441     [0x09e] = 0xb5,		/* NomV: 3.3 V */
442     [0x0a0] = 0x1e,
443     [0x0a2] = 0x3e,		/* Peakl: 350 mA */
444 
445     [0x0a4] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
446     [0x0a6] = 0x0d,		/* Tuple length = 13 bytes */
447     [0x0a8] = 0xc1,		/* TPCE_INDX = I/O and Memory Mode, Default */
448     [0x0aa] = 0x41,		/* TPCE_IF = I/O and Memory, no BVD, no WP */
449     [0x0ac] = 0x99,		/* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
450     [0x0ae] = 0x27,		/* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
451     [0x0b0] = 0x55,		/* NomV: 5.0 V */
452     [0x0b2] = 0x4d,		/* MinV: 4.5 V */
453     [0x0b4] = 0x5d,		/* MaxV: 5.5 V */
454     [0x0b6] = 0x4e,		/* Peakl: 450 mA */
455     [0x0b8] = 0x64,		/* TPCE_IO = 16-byte boundary, 16/8 accesses */
456     [0x0ba] = 0xf0,		/* TPCE_IR =  MASK, Level, Pulse, Share */
457     [0x0bc] = 0xff,		/* IRQ0..IRQ7 supported */
458     [0x0be] = 0xff,		/* IRQ8..IRQ15 supported */
459     [0x0c0] = 0x20,		/* TPCE_MI = support power down mode */
460 
461     [0x0c2] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
462     [0x0c4] = 0x06,		/* Tuple length = 6 bytes */
463     [0x0c6] = 0x01,		/* TPCE_INDX = I/O and Memory Mode */
464     [0x0c8] = 0x01,		/* TPCE_FS = Vcc only, no I/O, no Memory */
465     [0x0ca] = 0x21,		/* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
466     [0x0cc] = 0xb5,		/* NomV: 3.3 V */
467     [0x0ce] = 0x1e,
468     [0x0d0] = 0x3e,		/* Peakl: 350 mA */
469 
470     [0x0d2] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
471     [0x0d4] = 0x12,		/* Tuple length = 18 bytes */
472     [0x0d6] = 0xc2,		/* TPCE_INDX = I/O Primary Mode */
473     [0x0d8] = 0x41,		/* TPCE_IF = I/O and Memory, no BVD, no WP */
474     [0x0da] = 0x99,		/* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
475     [0x0dc] = 0x27,		/* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
476     [0x0de] = 0x55,		/* NomV: 5.0 V */
477     [0x0e0] = 0x4d,		/* MinV: 4.5 V */
478     [0x0e2] = 0x5d,		/* MaxV: 5.5 V */
479     [0x0e4] = 0x4e,		/* Peakl: 450 mA */
480     [0x0e6] = 0xea,		/* TPCE_IO = 1K boundary, 16/8 access, Range */
481     [0x0e8] = 0x61,		/* Range: 2 fields, 2 bytes addr, 1 byte len */
482     [0x0ea] = 0xf0,		/* Field 1 address = 0x01f0 */
483     [0x0ec] = 0x01,
484     [0x0ee] = 0x07,		/* Address block length = 8 */
485     [0x0f0] = 0xf6,		/* Field 2 address = 0x03f6 */
486     [0x0f2] = 0x03,
487     [0x0f4] = 0x01,		/* Address block length = 2 */
488     [0x0f6] = 0xee,		/* TPCE_IR = IRQ E, Level, Pulse, Share */
489     [0x0f8] = 0x20,		/* TPCE_MI = support power down mode */
490 
491     [0x0fa] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
492     [0x0fc] = 0x06,		/* Tuple length = 6 bytes */
493     [0x0fe] = 0x02,		/* TPCE_INDX = I/O Primary Mode, no Default */
494     [0x100] = 0x01,		/* TPCE_FS = Vcc only, no I/O, no Memory */
495     [0x102] = 0x21,		/* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
496     [0x104] = 0xb5,		/* NomV: 3.3 V */
497     [0x106] = 0x1e,
498     [0x108] = 0x3e,		/* Peakl: 350 mA */
499 
500     [0x10a] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
501     [0x10c] = 0x12,		/* Tuple length = 18 bytes */
502     [0x10e] = 0xc3,		/* TPCE_INDX = I/O Secondary Mode, Default */
503     [0x110] = 0x41,		/* TPCE_IF = I/O and Memory, no BVD, no WP */
504     [0x112] = 0x99,		/* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
505     [0x114] = 0x27,		/* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
506     [0x116] = 0x55,		/* NomV: 5.0 V */
507     [0x118] = 0x4d,		/* MinV: 4.5 V */
508     [0x11a] = 0x5d,		/* MaxV: 5.5 V */
509     [0x11c] = 0x4e,		/* Peakl: 450 mA */
510     [0x11e] = 0xea,		/* TPCE_IO = 1K boundary, 16/8 access, Range */
511     [0x120] = 0x61,		/* Range: 2 fields, 2 byte addr, 1 byte len */
512     [0x122] = 0x70,		/* Field 1 address = 0x0170 */
513     [0x124] = 0x01,
514     [0x126] = 0x07,		/* Address block length = 8 */
515     [0x128] = 0x76,		/* Field 2 address = 0x0376 */
516     [0x12a] = 0x03,
517     [0x12c] = 0x01,		/* Address block length = 2 */
518     [0x12e] = 0xee,		/* TPCE_IR = IRQ E, Level, Pulse, Share */
519     [0x130] = 0x20,		/* TPCE_MI = support power down mode */
520 
521     [0x132] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
522     [0x134] = 0x06,		/* Tuple length = 6 bytes */
523     [0x136] = 0x03,		/* TPCE_INDX = I/O Secondary Mode */
524     [0x138] = 0x01,		/* TPCE_FS = Vcc only, no I/O, no Memory */
525     [0x13a] = 0x21,		/* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
526     [0x13c] = 0xb5,		/* NomV: 3.3 V */
527     [0x13e] = 0x1e,
528     [0x140] = 0x3e,		/* Peakl: 350 mA */
529 
530     [0x142] = CISTPL_NO_LINK,	/* No Link */
531     [0x144] = 0x00,		/* Tuple length = 0 bytes */
532 
533     [0x146] = CISTPL_END,	/* Tuple End */
534 };
535 
536 #define TYPE_DSCM1XXXX "dscm1xxxx"
537 
538 static int dscm1xxxx_attach(PCMCIACardState *card)
539 {
540     MicroDriveState *md = MICRODRIVE(card);
541     PCMCIACardClass *pcc = PCMCIA_CARD_GET_CLASS(card);
542 
543     md->attr_base = pcc->cis[0x74] | (pcc->cis[0x76] << 8);
544     md->io_base = 0x0;
545 
546     device_legacy_reset(DEVICE(md));
547     md_interrupt_update(md);
548 
549     return 0;
550 }
551 
552 static int dscm1xxxx_detach(PCMCIACardState *card)
553 {
554     MicroDriveState *md = MICRODRIVE(card);
555 
556     device_legacy_reset(DEVICE(md));
557     return 0;
558 }
559 
560 PCMCIACardState *dscm1xxxx_init(DriveInfo *dinfo)
561 {
562     MicroDriveState *md;
563 
564     md = MICRODRIVE(object_new(TYPE_DSCM1XXXX));
565     qdev_realize(DEVICE(md), NULL, &error_fatal);
566 
567     if (dinfo != NULL) {
568         ide_create_drive(&md->bus, 0, dinfo);
569     }
570     md->bus.ifs[0].drive_kind = IDE_CFATA;
571     md->bus.ifs[0].mdata_size = METADATA_SIZE;
572     md->bus.ifs[0].mdata_storage = g_malloc0(METADATA_SIZE);
573 
574     return PCMCIA_CARD(md);
575 }
576 
577 static void dscm1xxxx_class_init(ObjectClass *oc, void *data)
578 {
579     PCMCIACardClass *pcc = PCMCIA_CARD_CLASS(oc);
580     DeviceClass *dc = DEVICE_CLASS(oc);
581 
582     pcc->cis = dscm1xxxx_cis;
583     pcc->cis_len = sizeof(dscm1xxxx_cis);
584 
585     pcc->attach = dscm1xxxx_attach;
586     pcc->detach = dscm1xxxx_detach;
587     /* Reason: Needs to be wired-up in code, see dscm1xxxx_init() */
588     dc->user_creatable = false;
589 }
590 
591 static const TypeInfo dscm1xxxx_type_info = {
592     .name = TYPE_DSCM1XXXX,
593     .parent = TYPE_MICRODRIVE,
594     .class_init = dscm1xxxx_class_init,
595 };
596 
597 static void microdrive_realize(DeviceState *dev, Error **errp)
598 {
599     MicroDriveState *md = MICRODRIVE(dev);
600 
601     ide_init2(&md->bus, qemu_allocate_irq(md_set_irq, md, 0));
602 }
603 
604 static void microdrive_init(Object *obj)
605 {
606     MicroDriveState *md = MICRODRIVE(obj);
607 
608     ide_bus_init(&md->bus, sizeof(md->bus), DEVICE(obj), 0, 1);
609 }
610 
611 static void microdrive_class_init(ObjectClass *oc, void *data)
612 {
613     DeviceClass *dc = DEVICE_CLASS(oc);
614     PCMCIACardClass *pcc = PCMCIA_CARD_CLASS(oc);
615 
616     pcc->attr_read = md_attr_read;
617     pcc->attr_write = md_attr_write;
618     pcc->common_read = md_common_read;
619     pcc->common_write = md_common_write;
620     pcc->io_read = md_common_read;
621     pcc->io_write = md_common_write;
622 
623     dc->realize = microdrive_realize;
624     dc->reset = md_reset;
625     dc->vmsd = &vmstate_microdrive;
626 }
627 
628 static const TypeInfo microdrive_type_info = {
629     .name = TYPE_MICRODRIVE,
630     .parent = TYPE_PCMCIA_CARD,
631     .instance_size = sizeof(MicroDriveState),
632     .instance_init = microdrive_init,
633     .abstract = true,
634     .class_init = microdrive_class_init,
635 };
636 
637 static void microdrive_register_types(void)
638 {
639     type_register_static(&microdrive_type_info);
640     type_register_static(&dscm1xxxx_type_info);
641 }
642 
643 type_init(microdrive_register_types)
644