xref: /openbmc/qemu/hw/ide/microdrive.c (revision 19f70347)
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 "qemu/module.h"
30 #include "sysemu/dma.h"
31 
32 #include "hw/ide/internal.h"
33 
34 #define TYPE_MICRODRIVE "microdrive"
35 #define MICRODRIVE(obj) OBJECT_CHECK(MicroDriveState, (obj), TYPE_MICRODRIVE)
36 
37 /***********************************************************/
38 /* CF-ATA Microdrive */
39 
40 #define METADATA_SIZE	0x20
41 
42 /* DSCM-1XXXX Microdrive hard disk with CF+ II / PCMCIA interface.  */
43 
44 typedef struct MicroDriveState {
45     /*< private >*/
46     PCMCIACardState parent_obj;
47     /*< public >*/
48 
49     IDEBus bus;
50     uint32_t attr_base;
51     uint32_t io_base;
52 
53     /* Card state */
54     uint8_t opt;
55     uint8_t stat;
56     uint8_t pins;
57 
58     uint8_t ctrl;
59     uint16_t io;
60     uint8_t cycle;
61 } MicroDriveState;
62 
63 /* Register bitfields */
64 enum md_opt {
65     OPT_MODE_MMAP	= 0,
66     OPT_MODE_IOMAP16	= 1,
67     OPT_MODE_IOMAP1	= 2,
68     OPT_MODE_IOMAP2	= 3,
69     OPT_MODE		= 0x3f,
70     OPT_LEVIREQ		= 0x40,
71     OPT_SRESET		= 0x80,
72 };
73 enum md_cstat {
74     STAT_INT		= 0x02,
75     STAT_PWRDWN		= 0x04,
76     STAT_XE		= 0x10,
77     STAT_IOIS8		= 0x20,
78     STAT_SIGCHG		= 0x40,
79     STAT_CHANGED	= 0x80,
80 };
81 enum md_pins {
82     PINS_MRDY		= 0x02,
83     PINS_CRDY		= 0x20,
84 };
85 enum md_ctrl {
86     CTRL_IEN		= 0x02,
87     CTRL_SRST		= 0x04,
88 };
89 
90 static inline void md_interrupt_update(MicroDriveState *s)
91 {
92     PCMCIACardState *card = PCMCIA_CARD(s);
93 
94     if (card->slot == NULL) {
95         return;
96     }
97 
98     qemu_set_irq(card->slot->irq,
99                     !(s->stat & STAT_INT) &&	/* Inverted */
100                     !(s->ctrl & (CTRL_IEN | CTRL_SRST)) &&
101                     !(s->opt & OPT_SRESET));
102 }
103 
104 static void md_set_irq(void *opaque, int irq, int level)
105 {
106     MicroDriveState *s = opaque;
107 
108     if (level) {
109         s->stat |= STAT_INT;
110     } else {
111         s->stat &= ~STAT_INT;
112     }
113 
114     md_interrupt_update(s);
115 }
116 
117 static void md_reset(DeviceState *dev)
118 {
119     MicroDriveState *s = MICRODRIVE(dev);
120 
121     s->opt = OPT_MODE_MMAP;
122     s->stat = 0;
123     s->pins = 0;
124     s->cycle = 0;
125     s->ctrl = 0;
126     ide_bus_reset(&s->bus);
127 }
128 
129 static uint8_t md_attr_read(PCMCIACardState *card, uint32_t at)
130 {
131     MicroDriveState *s = MICRODRIVE(card);
132     PCMCIACardClass *pcc = PCMCIA_CARD_GET_CLASS(card);
133 
134     if (at < s->attr_base) {
135         if (at < pcc->cis_len) {
136             return pcc->cis[at];
137         } else {
138             return 0x00;
139         }
140     }
141 
142     at -= s->attr_base;
143 
144     switch (at) {
145     case 0x00:	/* Configuration Option Register */
146         return s->opt;
147     case 0x02:	/* Card Configuration Status Register */
148         if (s->ctrl & CTRL_IEN) {
149             return s->stat & ~STAT_INT;
150         } else {
151             return s->stat;
152         }
153     case 0x04:	/* Pin Replacement Register */
154         return (s->pins & PINS_CRDY) | 0x0c;
155     case 0x06:	/* Socket and Copy Register */
156         return 0x00;
157 #ifdef VERBOSE
158     default:
159         printf("%s: Bad attribute space register %02x\n", __func__, at);
160 #endif
161     }
162 
163     return 0;
164 }
165 
166 static void md_attr_write(PCMCIACardState *card, uint32_t at, uint8_t value)
167 {
168     MicroDriveState *s = MICRODRIVE(card);
169 
170     at -= s->attr_base;
171 
172     switch (at) {
173     case 0x00:	/* Configuration Option Register */
174         s->opt = value & 0xcf;
175         if (value & OPT_SRESET) {
176             device_legacy_reset(DEVICE(s));
177         }
178         md_interrupt_update(s);
179         break;
180     case 0x02:	/* Card Configuration Status Register */
181         if ((s->stat ^ value) & STAT_PWRDWN) {
182             s->pins |= PINS_CRDY;
183         }
184         s->stat &= 0x82;
185         s->stat |= value & 0x74;
186         md_interrupt_update(s);
187         /* Word 170 in Identify Device must be equal to STAT_XE */
188         break;
189     case 0x04:	/* Pin Replacement Register */
190         s->pins &= PINS_CRDY;
191         s->pins |= value & PINS_MRDY;
192         break;
193     case 0x06:	/* Socket and Copy Register */
194         break;
195     default:
196         printf("%s: Bad attribute space register %02x\n", __func__, at);
197     }
198 }
199 
200 static uint16_t md_common_read(PCMCIACardState *card, uint32_t at)
201 {
202     MicroDriveState *s = MICRODRIVE(card);
203     IDEState *ifs;
204     uint16_t ret;
205     at -= s->io_base;
206 
207     switch (s->opt & OPT_MODE) {
208     case OPT_MODE_MMAP:
209         if ((at & ~0x3ff) == 0x400) {
210             at = 0;
211         }
212         break;
213     case OPT_MODE_IOMAP16:
214         at &= 0xf;
215         break;
216     case OPT_MODE_IOMAP1:
217         if ((at & ~0xf) == 0x3f0) {
218             at -= 0x3e8;
219         } else if ((at & ~0xf) == 0x1f0) {
220             at -= 0x1f0;
221         }
222         break;
223     case OPT_MODE_IOMAP2:
224         if ((at & ~0xf) == 0x370) {
225             at -= 0x368;
226         } else if ((at & ~0xf) == 0x170) {
227             at -= 0x170;
228         }
229     }
230 
231     switch (at) {
232     case 0x0:	/* Even RD Data */
233     case 0x8:
234         return ide_data_readw(&s->bus, 0);
235 
236         /* TODO: 8-bit accesses */
237         if (s->cycle) {
238             ret = s->io >> 8;
239         } else {
240             s->io = ide_data_readw(&s->bus, 0);
241             ret = s->io & 0xff;
242         }
243         s->cycle = !s->cycle;
244         return ret;
245     case 0x9:	/* Odd RD Data */
246         return s->io >> 8;
247     case 0xd:	/* Error */
248         return ide_ioport_read(&s->bus, 0x1);
249     case 0xe:	/* Alternate Status */
250         ifs = idebus_active_if(&s->bus);
251         if (ifs->blk) {
252             return ifs->status;
253         } else {
254             return 0;
255         }
256     case 0xf:	/* Device Address */
257         ifs = idebus_active_if(&s->bus);
258         return 0xc2 | ((~ifs->select << 2) & 0x3c);
259     default:
260         return ide_ioport_read(&s->bus, at);
261     }
262 
263     return 0;
264 }
265 
266 static void md_common_write(PCMCIACardState *card, uint32_t at, uint16_t value)
267 {
268     MicroDriveState *s = MICRODRIVE(card);
269     at -= s->io_base;
270 
271     switch (s->opt & OPT_MODE) {
272     case OPT_MODE_MMAP:
273         if ((at & ~0x3ff) == 0x400) {
274             at = 0;
275         }
276         break;
277     case OPT_MODE_IOMAP16:
278         at &= 0xf;
279         break;
280     case OPT_MODE_IOMAP1:
281         if ((at & ~0xf) == 0x3f0) {
282             at -= 0x3e8;
283         } else if ((at & ~0xf) == 0x1f0) {
284             at -= 0x1f0;
285         }
286         break;
287     case OPT_MODE_IOMAP2:
288         if ((at & ~0xf) == 0x370) {
289             at -= 0x368;
290         } else if ((at & ~0xf) == 0x170) {
291             at -= 0x170;
292         }
293     }
294 
295     switch (at) {
296     case 0x0:	/* Even WR Data */
297     case 0x8:
298         ide_data_writew(&s->bus, 0, value);
299         break;
300 
301         /* TODO: 8-bit accesses */
302         if (s->cycle) {
303             ide_data_writew(&s->bus, 0, s->io | (value << 8));
304         } else {
305             s->io = value & 0xff;
306         }
307         s->cycle = !s->cycle;
308         break;
309     case 0x9:
310         s->io = value & 0xff;
311         s->cycle = !s->cycle;
312         break;
313     case 0xd:	/* Features */
314         ide_ioport_write(&s->bus, 0x1, value);
315         break;
316     case 0xe:	/* Device Control */
317         s->ctrl = value;
318         if (value & CTRL_SRST) {
319             device_legacy_reset(DEVICE(s));
320         }
321         md_interrupt_update(s);
322         break;
323     default:
324         if (s->stat & STAT_PWRDWN) {
325             s->pins |= PINS_CRDY;
326             s->stat &= ~STAT_PWRDWN;
327         }
328         ide_ioport_write(&s->bus, at, value);
329     }
330 }
331 
332 static const VMStateDescription vmstate_microdrive = {
333     .name = "microdrive",
334     .version_id = 3,
335     .minimum_version_id = 0,
336     .fields = (VMStateField[]) {
337         VMSTATE_UINT8(opt, MicroDriveState),
338         VMSTATE_UINT8(stat, MicroDriveState),
339         VMSTATE_UINT8(pins, MicroDriveState),
340         VMSTATE_UINT8(ctrl, MicroDriveState),
341         VMSTATE_UINT16(io, MicroDriveState),
342         VMSTATE_UINT8(cycle, MicroDriveState),
343         VMSTATE_IDE_BUS(bus, MicroDriveState),
344         VMSTATE_IDE_DRIVES(bus.ifs, MicroDriveState),
345         VMSTATE_END_OF_LIST()
346     }
347 };
348 
349 static const uint8_t dscm1xxxx_cis[0x14a] = {
350     [0x000] = CISTPL_DEVICE,	/* 5V Device Information */
351     [0x002] = 0x03,		/* Tuple length = 4 bytes */
352     [0x004] = 0xdb,		/* ID: DTYPE_FUNCSPEC, non WP, DSPEED_150NS */
353     [0x006] = 0x01,		/* Size = 2K bytes */
354     [0x008] = CISTPL_ENDMARK,
355 
356     [0x00a] = CISTPL_DEVICE_OC,	/* Additional Device Information */
357     [0x00c] = 0x04,		/* Tuple length = 4 byest */
358     [0x00e] = 0x03,		/* Conditions: Ext = 0, Vcc 3.3V, MWAIT = 1 */
359     [0x010] = 0xdb,		/* ID: DTYPE_FUNCSPEC, non WP, DSPEED_150NS */
360     [0x012] = 0x01,		/* Size = 2K bytes */
361     [0x014] = CISTPL_ENDMARK,
362 
363     [0x016] = CISTPL_JEDEC_C,	/* JEDEC ID */
364     [0x018] = 0x02,		/* Tuple length = 2 bytes */
365     [0x01a] = 0xdf,		/* PC Card ATA with no Vpp required */
366     [0x01c] = 0x01,
367 
368     [0x01e] = CISTPL_MANFID,	/* Manufacture ID */
369     [0x020] = 0x04,		/* Tuple length = 4 bytes */
370     [0x022] = 0xa4,		/* TPLMID_MANF = 00a4 (IBM) */
371     [0x024] = 0x00,
372     [0x026] = 0x00,		/* PLMID_CARD = 0000 */
373     [0x028] = 0x00,
374 
375     [0x02a] = CISTPL_VERS_1,	/* Level 1 Version */
376     [0x02c] = 0x12,		/* Tuple length = 23 bytes */
377     [0x02e] = 0x04,		/* Major Version = JEIDA 4.2 / PCMCIA 2.1 */
378     [0x030] = 0x01,		/* Minor Version = 1 */
379     [0x032] = 'I',
380     [0x034] = 'B',
381     [0x036] = 'M',
382     [0x038] = 0x00,
383     [0x03a] = 'm',
384     [0x03c] = 'i',
385     [0x03e] = 'c',
386     [0x040] = 'r',
387     [0x042] = 'o',
388     [0x044] = 'd',
389     [0x046] = 'r',
390     [0x048] = 'i',
391     [0x04a] = 'v',
392     [0x04c] = 'e',
393     [0x04e] = 0x00,
394     [0x050] = CISTPL_ENDMARK,
395 
396     [0x052] = CISTPL_FUNCID,	/* Function ID */
397     [0x054] = 0x02,		/* Tuple length = 2 bytes */
398     [0x056] = 0x04,		/* TPLFID_FUNCTION = Fixed Disk */
399     [0x058] = 0x01,		/* TPLFID_SYSINIT: POST = 1, ROM = 0 */
400 
401     [0x05a] = CISTPL_FUNCE,	/* Function Extension */
402     [0x05c] = 0x02,		/* Tuple length = 2 bytes */
403     [0x05e] = 0x01,		/* TPLFE_TYPE = Disk Device Interface */
404     [0x060] = 0x01,		/* TPLFE_DATA = PC Card ATA Interface */
405 
406     [0x062] = CISTPL_FUNCE,	/* Function Extension */
407     [0x064] = 0x03,		/* Tuple length = 3 bytes */
408     [0x066] = 0x02,		/* TPLFE_TYPE = Basic PC Card ATA Interface */
409     [0x068] = 0x08,		/* TPLFE_DATA: Rotating, Unique, Single */
410     [0x06a] = 0x0f,		/* TPLFE_DATA: Sleep, Standby, Idle, Auto */
411 
412     [0x06c] = CISTPL_CONFIG,	/* Configuration */
413     [0x06e] = 0x05,		/* Tuple length = 5 bytes */
414     [0x070] = 0x01,		/* TPCC_RASZ = 2 bytes, TPCC_RMSZ = 1 byte */
415     [0x072] = 0x07,		/* TPCC_LAST = 7 */
416     [0x074] = 0x00,		/* TPCC_RADR = 0200 */
417     [0x076] = 0x02,
418     [0x078] = 0x0f,		/* TPCC_RMSK = 200, 202, 204, 206 */
419 
420     [0x07a] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
421     [0x07c] = 0x0b,		/* Tuple length = 11 bytes */
422     [0x07e] = 0xc0,		/* TPCE_INDX = Memory Mode, Default, Iface */
423     [0x080] = 0xc0,		/* TPCE_IF = Memory, no BVDs, no WP, READY */
424     [0x082] = 0xa1,		/* TPCE_FS = Vcc only, no I/O, Memory, Misc */
425     [0x084] = 0x27,		/* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
426     [0x086] = 0x55,		/* NomV: 5.0 V */
427     [0x088] = 0x4d,		/* MinV: 4.5 V */
428     [0x08a] = 0x5d,		/* MaxV: 5.5 V */
429     [0x08c] = 0x4e,		/* Peakl: 450 mA */
430     [0x08e] = 0x08,		/* TPCE_MS = 1 window, 1 byte, Host address */
431     [0x090] = 0x00,		/* Window descriptor: Window length = 0 */
432     [0x092] = 0x20,		/* TPCE_MI: support power down mode, RW */
433 
434     [0x094] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
435     [0x096] = 0x06,		/* Tuple length = 6 bytes */
436     [0x098] = 0x00,		/* TPCE_INDX = Memory Mode, no Default */
437     [0x09a] = 0x01,		/* TPCE_FS = Vcc only, no I/O, no Memory */
438     [0x09c] = 0x21,		/* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
439     [0x09e] = 0xb5,		/* NomV: 3.3 V */
440     [0x0a0] = 0x1e,
441     [0x0a2] = 0x3e,		/* Peakl: 350 mA */
442 
443     [0x0a4] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
444     [0x0a6] = 0x0d,		/* Tuple length = 13 bytes */
445     [0x0a8] = 0xc1,		/* TPCE_INDX = I/O and Memory Mode, Default */
446     [0x0aa] = 0x41,		/* TPCE_IF = I/O and Memory, no BVD, no WP */
447     [0x0ac] = 0x99,		/* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
448     [0x0ae] = 0x27,		/* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
449     [0x0b0] = 0x55,		/* NomV: 5.0 V */
450     [0x0b2] = 0x4d,		/* MinV: 4.5 V */
451     [0x0b4] = 0x5d,		/* MaxV: 5.5 V */
452     [0x0b6] = 0x4e,		/* Peakl: 450 mA */
453     [0x0b8] = 0x64,		/* TPCE_IO = 16-byte boundary, 16/8 accesses */
454     [0x0ba] = 0xf0,		/* TPCE_IR =  MASK, Level, Pulse, Share */
455     [0x0bc] = 0xff,		/* IRQ0..IRQ7 supported */
456     [0x0be] = 0xff,		/* IRQ8..IRQ15 supported */
457     [0x0c0] = 0x20,		/* TPCE_MI = support power down mode */
458 
459     [0x0c2] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
460     [0x0c4] = 0x06,		/* Tuple length = 6 bytes */
461     [0x0c6] = 0x01,		/* TPCE_INDX = I/O and Memory Mode */
462     [0x0c8] = 0x01,		/* TPCE_FS = Vcc only, no I/O, no Memory */
463     [0x0ca] = 0x21,		/* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
464     [0x0cc] = 0xb5,		/* NomV: 3.3 V */
465     [0x0ce] = 0x1e,
466     [0x0d0] = 0x3e,		/* Peakl: 350 mA */
467 
468     [0x0d2] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
469     [0x0d4] = 0x12,		/* Tuple length = 18 bytes */
470     [0x0d6] = 0xc2,		/* TPCE_INDX = I/O Primary Mode */
471     [0x0d8] = 0x41,		/* TPCE_IF = I/O and Memory, no BVD, no WP */
472     [0x0da] = 0x99,		/* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
473     [0x0dc] = 0x27,		/* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
474     [0x0de] = 0x55,		/* NomV: 5.0 V */
475     [0x0e0] = 0x4d,		/* MinV: 4.5 V */
476     [0x0e2] = 0x5d,		/* MaxV: 5.5 V */
477     [0x0e4] = 0x4e,		/* Peakl: 450 mA */
478     [0x0e6] = 0xea,		/* TPCE_IO = 1K boundary, 16/8 access, Range */
479     [0x0e8] = 0x61,		/* Range: 2 fields, 2 bytes addr, 1 byte len */
480     [0x0ea] = 0xf0,		/* Field 1 address = 0x01f0 */
481     [0x0ec] = 0x01,
482     [0x0ee] = 0x07,		/* Address block length = 8 */
483     [0x0f0] = 0xf6,		/* Field 2 address = 0x03f6 */
484     [0x0f2] = 0x03,
485     [0x0f4] = 0x01,		/* Address block length = 2 */
486     [0x0f6] = 0xee,		/* TPCE_IR = IRQ E, Level, Pulse, Share */
487     [0x0f8] = 0x20,		/* TPCE_MI = support power down mode */
488 
489     [0x0fa] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
490     [0x0fc] = 0x06,		/* Tuple length = 6 bytes */
491     [0x0fe] = 0x02,		/* TPCE_INDX = I/O Primary Mode, no Default */
492     [0x100] = 0x01,		/* TPCE_FS = Vcc only, no I/O, no Memory */
493     [0x102] = 0x21,		/* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
494     [0x104] = 0xb5,		/* NomV: 3.3 V */
495     [0x106] = 0x1e,
496     [0x108] = 0x3e,		/* Peakl: 350 mA */
497 
498     [0x10a] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
499     [0x10c] = 0x12,		/* Tuple length = 18 bytes */
500     [0x10e] = 0xc3,		/* TPCE_INDX = I/O Secondary Mode, Default */
501     [0x110] = 0x41,		/* TPCE_IF = I/O and Memory, no BVD, no WP */
502     [0x112] = 0x99,		/* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
503     [0x114] = 0x27,		/* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
504     [0x116] = 0x55,		/* NomV: 5.0 V */
505     [0x118] = 0x4d,		/* MinV: 4.5 V */
506     [0x11a] = 0x5d,		/* MaxV: 5.5 V */
507     [0x11c] = 0x4e,		/* Peakl: 450 mA */
508     [0x11e] = 0xea,		/* TPCE_IO = 1K boundary, 16/8 access, Range */
509     [0x120] = 0x61,		/* Range: 2 fields, 2 byte addr, 1 byte len */
510     [0x122] = 0x70,		/* Field 1 address = 0x0170 */
511     [0x124] = 0x01,
512     [0x126] = 0x07,		/* Address block length = 8 */
513     [0x128] = 0x76,		/* Field 2 address = 0x0376 */
514     [0x12a] = 0x03,
515     [0x12c] = 0x01,		/* Address block length = 2 */
516     [0x12e] = 0xee,		/* TPCE_IR = IRQ E, Level, Pulse, Share */
517     [0x130] = 0x20,		/* TPCE_MI = support power down mode */
518 
519     [0x132] = CISTPL_CFTABLE_ENTRY,	/* 16-bit PC Card Configuration */
520     [0x134] = 0x06,		/* Tuple length = 6 bytes */
521     [0x136] = 0x03,		/* TPCE_INDX = I/O Secondary Mode */
522     [0x138] = 0x01,		/* TPCE_FS = Vcc only, no I/O, no Memory */
523     [0x13a] = 0x21,		/* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
524     [0x13c] = 0xb5,		/* NomV: 3.3 V */
525     [0x13e] = 0x1e,
526     [0x140] = 0x3e,		/* Peakl: 350 mA */
527 
528     [0x142] = CISTPL_NO_LINK,	/* No Link */
529     [0x144] = 0x00,		/* Tuple length = 0 bytes */
530 
531     [0x146] = CISTPL_END,	/* Tuple End */
532 };
533 
534 #define TYPE_DSCM1XXXX "dscm1xxxx"
535 
536 static int dscm1xxxx_attach(PCMCIACardState *card)
537 {
538     MicroDriveState *md = MICRODRIVE(card);
539     PCMCIACardClass *pcc = PCMCIA_CARD_GET_CLASS(card);
540 
541     md->attr_base = pcc->cis[0x74] | (pcc->cis[0x76] << 8);
542     md->io_base = 0x0;
543 
544     device_legacy_reset(DEVICE(md));
545     md_interrupt_update(md);
546 
547     return 0;
548 }
549 
550 static int dscm1xxxx_detach(PCMCIACardState *card)
551 {
552     MicroDriveState *md = MICRODRIVE(card);
553 
554     device_legacy_reset(DEVICE(md));
555     return 0;
556 }
557 
558 PCMCIACardState *dscm1xxxx_init(DriveInfo *dinfo)
559 {
560     MicroDriveState *md;
561 
562     md = MICRODRIVE(object_new(TYPE_DSCM1XXXX));
563     qdev_init_nofail(DEVICE(md));
564 
565     if (dinfo != NULL) {
566         ide_create_drive(&md->bus, 0, dinfo);
567     }
568     md->bus.ifs[0].drive_kind = IDE_CFATA;
569     md->bus.ifs[0].mdata_size = METADATA_SIZE;
570     md->bus.ifs[0].mdata_storage = g_malloc0(METADATA_SIZE);
571 
572     return PCMCIA_CARD(md);
573 }
574 
575 static void dscm1xxxx_class_init(ObjectClass *oc, void *data)
576 {
577     PCMCIACardClass *pcc = PCMCIA_CARD_CLASS(oc);
578     DeviceClass *dc = DEVICE_CLASS(oc);
579 
580     pcc->cis = dscm1xxxx_cis;
581     pcc->cis_len = sizeof(dscm1xxxx_cis);
582 
583     pcc->attach = dscm1xxxx_attach;
584     pcc->detach = dscm1xxxx_detach;
585     /* Reason: Needs to be wired-up in code, see dscm1xxxx_init() */
586     dc->user_creatable = false;
587 }
588 
589 static const TypeInfo dscm1xxxx_type_info = {
590     .name = TYPE_DSCM1XXXX,
591     .parent = TYPE_MICRODRIVE,
592     .class_init = dscm1xxxx_class_init,
593 };
594 
595 static void microdrive_realize(DeviceState *dev, Error **errp)
596 {
597     MicroDriveState *md = MICRODRIVE(dev);
598 
599     ide_init2(&md->bus, qemu_allocate_irq(md_set_irq, md, 0));
600 }
601 
602 static void microdrive_init(Object *obj)
603 {
604     MicroDriveState *md = MICRODRIVE(obj);
605 
606     ide_bus_new(&md->bus, sizeof(md->bus), DEVICE(obj), 0, 1);
607 }
608 
609 static void microdrive_class_init(ObjectClass *oc, void *data)
610 {
611     DeviceClass *dc = DEVICE_CLASS(oc);
612     PCMCIACardClass *pcc = PCMCIA_CARD_CLASS(oc);
613 
614     pcc->attr_read = md_attr_read;
615     pcc->attr_write = md_attr_write;
616     pcc->common_read = md_common_read;
617     pcc->common_write = md_common_write;
618     pcc->io_read = md_common_read;
619     pcc->io_write = md_common_write;
620 
621     dc->realize = microdrive_realize;
622     dc->reset = md_reset;
623     dc->vmsd = &vmstate_microdrive;
624 }
625 
626 static const TypeInfo microdrive_type_info = {
627     .name = TYPE_MICRODRIVE,
628     .parent = TYPE_PCMCIA_CARD,
629     .instance_size = sizeof(MicroDriveState),
630     .instance_init = microdrive_init,
631     .abstract = true,
632     .class_init = microdrive_class_init,
633 };
634 
635 static void microdrive_register_types(void)
636 {
637     type_register_static(&microdrive_type_info);
638     type_register_static(&dscm1xxxx_type_info);
639 }
640 
641 type_init(microdrive_register_types)
642