xref: /openbmc/qemu/hw/ide/microdrive.c (revision ce799a04)
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 #include "hw/irq.h"
33 
34 #include "hw/ide/internal.h"
35 #include "qom/object.h"
36 
37 #define TYPE_MICRODRIVE "microdrive"
38 OBJECT_DECLARE_SIMPLE_TYPE(MicroDriveState, MICRODRIVE)
39 
40 /***********************************************************/
41 /* CF-ATA Microdrive */
42 
43 #define METADATA_SIZE   0x20
44 
45 /* DSCM-1XXXX Microdrive hard disk with CF+ II / PCMCIA interface.  */
46 
47 struct MicroDriveState {
48     /*< private >*/
49     PCMCIACardState parent_obj;
50     /*< public >*/
51 
52     IDEBus bus;
53     uint32_t attr_base;
54     uint32_t io_base;
55 
56     /* Card state */
57     uint8_t opt;
58     uint8_t stat;
59     uint8_t pins;
60 
61     uint8_t ctrl;
62     uint16_t io;
63     uint8_t cycle;
64 };
65 
66 /* Register bitfields */
67 enum md_opt {
68     OPT_MODE_MMAP    = 0,
69     OPT_MODE_IOMAP16 = 1,
70     OPT_MODE_IOMAP1  = 2,
71     OPT_MODE_IOMAP2  = 3,
72     OPT_MODE         = 0x3f,
73     OPT_LEVIREQ      = 0x40,
74     OPT_SRESET       = 0x80,
75 };
76 enum md_cstat {
77     STAT_INT        = 0x02,
78     STAT_PWRDWN     = 0x04,
79     STAT_XE         = 0x10,
80     STAT_IOIS8      = 0x20,
81     STAT_SIGCHG     = 0x40,
82     STAT_CHANGED    = 0x80,
83 };
84 enum md_pins {
85     PINS_MRDY       = 0x02,
86     PINS_CRDY       = 0x20,
87 };
88 enum md_ctrl {
89     CTRL_IEN        = 0x02,
90     CTRL_SRST       = 0x04,
91 };
92 
93 static inline void md_interrupt_update(MicroDriveState *s)
94 {
95     PCMCIACardState *card = PCMCIA_CARD(s);
96 
97     if (card->slot == NULL) {
98         return;
99     }
100 
101     qemu_set_irq(card->slot->irq,
102                     !(s->stat & STAT_INT) &&    /* Inverted */
103                     !(s->ctrl & (CTRL_IEN | CTRL_SRST)) &&
104                     !(s->opt & OPT_SRESET));
105 }
106 
107 static void md_set_irq(void *opaque, int irq, int level)
108 {
109     MicroDriveState *s = opaque;
110 
111     if (level) {
112         s->stat |= STAT_INT;
113     } else {
114         s->stat &= ~STAT_INT;
115     }
116 
117     md_interrupt_update(s);
118 }
119 
120 static void md_reset(DeviceState *dev)
121 {
122     MicroDriveState *s = MICRODRIVE(dev);
123 
124     s->opt = OPT_MODE_MMAP;
125     s->stat = 0;
126     s->pins = 0;
127     s->cycle = 0;
128     s->ctrl = 0;
129     ide_bus_reset(&s->bus);
130 }
131 
132 static uint8_t md_attr_read(PCMCIACardState *card, uint32_t at)
133 {
134     MicroDriveState *s = MICRODRIVE(card);
135     PCMCIACardClass *pcc = PCMCIA_CARD_GET_CLASS(card);
136 
137     if (at < s->attr_base) {
138         if (at < pcc->cis_len) {
139             return pcc->cis[at];
140         } else {
141             return 0x00;
142         }
143     }
144 
145     at -= s->attr_base;
146 
147     switch (at) {
148     case 0x00:  /* Configuration Option Register */
149         return s->opt;
150     case 0x02:  /* Card Configuration Status Register */
151         if (s->ctrl & CTRL_IEN) {
152             return s->stat & ~STAT_INT;
153         } else {
154             return s->stat;
155         }
156     case 0x04:  /* Pin Replacement Register */
157         return (s->pins & PINS_CRDY) | 0x0c;
158     case 0x06:  /* Socket and Copy Register */
159         return 0x00;
160 #ifdef VERBOSE
161     default:
162         printf("%s: Bad attribute space register %02x\n", __func__, at);
163 #endif
164     }
165 
166     return 0;
167 }
168 
169 static void md_attr_write(PCMCIACardState *card, uint32_t at, uint8_t value)
170 {
171     MicroDriveState *s = MICRODRIVE(card);
172 
173     at -= s->attr_base;
174 
175     switch (at) {
176     case 0x00:  /* Configuration Option Register */
177         s->opt = value & 0xcf;
178         if (value & OPT_SRESET) {
179             device_cold_reset(DEVICE(s));
180         }
181         md_interrupt_update(s);
182         break;
183     case 0x02:  /* Card Configuration Status Register */
184         if ((s->stat ^ value) & STAT_PWRDWN) {
185             s->pins |= PINS_CRDY;
186         }
187         s->stat &= 0x82;
188         s->stat |= value & 0x74;
189         md_interrupt_update(s);
190         /* Word 170 in Identify Device must be equal to STAT_XE */
191         break;
192     case 0x04:  /* Pin Replacement Register */
193         s->pins &= PINS_CRDY;
194         s->pins |= value & PINS_MRDY;
195         break;
196     case 0x06:  /* Socket and Copy Register */
197         break;
198     default:
199         printf("%s: Bad attribute space register %02x\n", __func__, at);
200     }
201 }
202 
203 static uint16_t md_common_read(PCMCIACardState *card, uint32_t at)
204 {
205     MicroDriveState *s = MICRODRIVE(card);
206     IDEState *ifs;
207     uint16_t ret;
208     at -= s->io_base;
209 
210     switch (s->opt & OPT_MODE) {
211     case OPT_MODE_MMAP:
212         if ((at & ~0x3ff) == 0x400) {
213             at = 0;
214         }
215         break;
216     case OPT_MODE_IOMAP16:
217         at &= 0xf;
218         break;
219     case OPT_MODE_IOMAP1:
220         if ((at & ~0xf) == 0x3f0) {
221             at -= 0x3e8;
222         } else if ((at & ~0xf) == 0x1f0) {
223             at -= 0x1f0;
224         }
225         break;
226     case OPT_MODE_IOMAP2:
227         if ((at & ~0xf) == 0x370) {
228             at -= 0x368;
229         } else if ((at & ~0xf) == 0x170) {
230             at -= 0x170;
231         }
232     }
233 
234     switch (at) {
235     case 0x0:  /* Even RD Data */
236     case 0x8:
237         return ide_data_readw(&s->bus, 0);
238 
239         /* TODO: 8-bit accesses */
240         if (s->cycle) {
241             ret = s->io >> 8;
242         } else {
243             s->io = ide_data_readw(&s->bus, 0);
244             ret = s->io & 0xff;
245         }
246         s->cycle = !s->cycle;
247         return ret;
248     case 0x9:  /* Odd RD Data */
249         return s->io >> 8;
250     case 0xd:  /* Error */
251         return ide_ioport_read(&s->bus, 0x1);
252     case 0xe:  /* Alternate Status */
253         ifs = ide_bus_active_if(&s->bus);
254         if (ifs->blk) {
255             return ifs->status;
256         } else {
257             return 0;
258         }
259     case 0xf:  /* Device Address */
260         ifs = ide_bus_active_if(&s->bus);
261         return 0xc2 | ((~ifs->select << 2) & 0x3c);
262     default:
263         return ide_ioport_read(&s->bus, at);
264     }
265 
266     return 0;
267 }
268 
269 static void md_common_write(PCMCIACardState *card, uint32_t at, uint16_t value)
270 {
271     MicroDriveState *s = MICRODRIVE(card);
272     at -= s->io_base;
273 
274     switch (s->opt & OPT_MODE) {
275     case OPT_MODE_MMAP:
276         if ((at & ~0x3ff) == 0x400) {
277             at = 0;
278         }
279         break;
280     case OPT_MODE_IOMAP16:
281         at &= 0xf;
282         break;
283     case OPT_MODE_IOMAP1:
284         if ((at & ~0xf) == 0x3f0) {
285             at -= 0x3e8;
286         } else if ((at & ~0xf) == 0x1f0) {
287             at -= 0x1f0;
288         }
289         break;
290     case OPT_MODE_IOMAP2:
291         if ((at & ~0xf) == 0x370) {
292             at -= 0x368;
293         } else if ((at & ~0xf) == 0x170) {
294             at -= 0x170;
295         }
296     }
297 
298     switch (at) {
299     case 0x0:  /* Even WR Data */
300     case 0x8:
301         ide_data_writew(&s->bus, 0, value);
302         break;
303 
304         /* TODO: 8-bit accesses */
305         if (s->cycle) {
306             ide_data_writew(&s->bus, 0, s->io | (value << 8));
307         } else {
308             s->io = value & 0xff;
309         }
310         s->cycle = !s->cycle;
311         break;
312     case 0x9:
313         s->io = value & 0xff;
314         s->cycle = !s->cycle;
315         break;
316     case 0xd:  /* Features */
317         ide_ioport_write(&s->bus, 0x1, value);
318         break;
319     case 0xe:  /* Device Control */
320         s->ctrl = value;
321         if (value & CTRL_SRST) {
322             device_cold_reset(DEVICE(s));
323         }
324         md_interrupt_update(s);
325         break;
326     default:
327         if (s->stat & STAT_PWRDWN) {
328             s->pins |= PINS_CRDY;
329             s->stat &= ~STAT_PWRDWN;
330         }
331         ide_ioport_write(&s->bus, at, value);
332     }
333 }
334 
335 static const VMStateDescription vmstate_microdrive = {
336     .name = "microdrive",
337     .version_id = 3,
338     .minimum_version_id = 0,
339     .fields = (VMStateField[]) {
340         VMSTATE_UINT8(opt, MicroDriveState),
341         VMSTATE_UINT8(stat, MicroDriveState),
342         VMSTATE_UINT8(pins, MicroDriveState),
343         VMSTATE_UINT8(ctrl, MicroDriveState),
344         VMSTATE_UINT16(io, MicroDriveState),
345         VMSTATE_UINT8(cycle, MicroDriveState),
346         VMSTATE_IDE_BUS(bus, MicroDriveState),
347         VMSTATE_IDE_DRIVES(bus.ifs, MicroDriveState),
348         VMSTATE_END_OF_LIST()
349     }
350 };
351 
352 static const uint8_t dscm1xxxx_cis[0x14a] = {
353     [0x000] = CISTPL_DEVICE,    /* 5V Device Information */
354     [0x002] = 0x03,             /* Tuple length = 4 bytes */
355     [0x004] = 0xdb,             /* ID: DTYPE_FUNCSPEC, non WP, DSPEED_150NS */
356     [0x006] = 0x01,             /* Size = 2K bytes */
357     [0x008] = CISTPL_ENDMARK,
358 
359     [0x00a] = CISTPL_DEVICE_OC, /* Additional Device Information */
360     [0x00c] = 0x04,             /* Tuple length = 4 byest */
361     [0x00e] = 0x03,             /* Conditions: Ext = 0, Vcc 3.3V, MWAIT = 1 */
362     [0x010] = 0xdb,             /* ID: DTYPE_FUNCSPEC, non WP, DSPEED_150NS */
363     [0x012] = 0x01,             /* Size = 2K bytes */
364     [0x014] = CISTPL_ENDMARK,
365 
366     [0x016] = CISTPL_JEDEC_C,   /* JEDEC ID */
367     [0x018] = 0x02,             /* Tuple length = 2 bytes */
368     [0x01a] = 0xdf,             /* PC Card ATA with no Vpp required */
369     [0x01c] = 0x01,
370 
371     [0x01e] = CISTPL_MANFID,    /* Manufacture ID */
372     [0x020] = 0x04,             /* Tuple length = 4 bytes */
373     [0x022] = 0xa4,             /* TPLMID_MANF = 00a4 (IBM) */
374     [0x024] = 0x00,
375     [0x026] = 0x00,             /* PLMID_CARD = 0000 */
376     [0x028] = 0x00,
377 
378     [0x02a] = CISTPL_VERS_1,    /* Level 1 Version */
379     [0x02c] = 0x12,             /* Tuple length = 23 bytes */
380     [0x02e] = 0x04,             /* Major Version = JEIDA 4.2 / PCMCIA 2.1 */
381     [0x030] = 0x01,             /* Minor Version = 1 */
382     [0x032] = 'I',
383     [0x034] = 'B',
384     [0x036] = 'M',
385     [0x038] = 0x00,
386     [0x03a] = 'm',
387     [0x03c] = 'i',
388     [0x03e] = 'c',
389     [0x040] = 'r',
390     [0x042] = 'o',
391     [0x044] = 'd',
392     [0x046] = 'r',
393     [0x048] = 'i',
394     [0x04a] = 'v',
395     [0x04c] = 'e',
396     [0x04e] = 0x00,
397     [0x050] = CISTPL_ENDMARK,
398 
399     [0x052] = CISTPL_FUNCID,    /* Function ID */
400     [0x054] = 0x02,             /* Tuple length = 2 bytes */
401     [0x056] = 0x04,             /* TPLFID_FUNCTION = Fixed Disk */
402     [0x058] = 0x01,             /* TPLFID_SYSINIT: POST = 1, ROM = 0 */
403 
404     [0x05a] = CISTPL_FUNCE,     /* Function Extension */
405     [0x05c] = 0x02,             /* Tuple length = 2 bytes */
406     [0x05e] = 0x01,             /* TPLFE_TYPE = Disk Device Interface */
407     [0x060] = 0x01,             /* TPLFE_DATA = PC Card ATA Interface */
408 
409     [0x062] = CISTPL_FUNCE,     /* Function Extension */
410     [0x064] = 0x03,             /* Tuple length = 3 bytes */
411     [0x066] = 0x02,             /* TPLFE_TYPE = Basic PC Card ATA Interface */
412     [0x068] = 0x08,             /* TPLFE_DATA: Rotating, Unique, Single */
413     [0x06a] = 0x0f,             /* TPLFE_DATA: Sleep, Standby, Idle, Auto */
414 
415     [0x06c] = CISTPL_CONFIG,    /* Configuration */
416     [0x06e] = 0x05,             /* Tuple length = 5 bytes */
417     [0x070] = 0x01,             /* TPCC_RASZ = 2 bytes, TPCC_RMSZ = 1 byte */
418     [0x072] = 0x07,             /* TPCC_LAST = 7 */
419     [0x074] = 0x00,             /* TPCC_RADR = 0200 */
420     [0x076] = 0x02,
421     [0x078] = 0x0f,             /* TPCC_RMSK = 200, 202, 204, 206 */
422 
423     [0x07a] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
424     [0x07c] = 0x0b,             /* Tuple length = 11 bytes */
425     [0x07e] = 0xc0,             /* TPCE_INDX = Memory Mode, Default, Iface */
426     [0x080] = 0xc0,             /* TPCE_IF = Memory, no BVDs, no WP, READY */
427     [0x082] = 0xa1,             /* TPCE_FS = Vcc only, no I/O, Memory, Misc */
428     [0x084] = 0x27,             /* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
429     [0x086] = 0x55,             /* NomV: 5.0 V */
430     [0x088] = 0x4d,             /* MinV: 4.5 V */
431     [0x08a] = 0x5d,             /* MaxV: 5.5 V */
432     [0x08c] = 0x4e,             /* Peakl: 450 mA */
433     [0x08e] = 0x08,             /* TPCE_MS = 1 window, 1 byte, Host address */
434     [0x090] = 0x00,             /* Window descriptor: Window length = 0 */
435     [0x092] = 0x20,             /* TPCE_MI: support power down mode, RW */
436 
437     [0x094] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
438     [0x096] = 0x06,             /* Tuple length = 6 bytes */
439     [0x098] = 0x00,             /* TPCE_INDX = Memory Mode, no Default */
440     [0x09a] = 0x01,             /* TPCE_FS = Vcc only, no I/O, no Memory */
441     [0x09c] = 0x21,             /* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
442     [0x09e] = 0xb5,             /* NomV: 3.3 V */
443     [0x0a0] = 0x1e,
444     [0x0a2] = 0x3e,             /* Peakl: 350 mA */
445 
446     [0x0a4] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
447     [0x0a6] = 0x0d,             /* Tuple length = 13 bytes */
448     [0x0a8] = 0xc1,             /* TPCE_INDX = I/O and Memory Mode, Default */
449     [0x0aa] = 0x41,             /* TPCE_IF = I/O and Memory, no BVD, no WP */
450     [0x0ac] = 0x99,             /* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
451     [0x0ae] = 0x27,             /* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
452     [0x0b0] = 0x55,             /* NomV: 5.0 V */
453     [0x0b2] = 0x4d,             /* MinV: 4.5 V */
454     [0x0b4] = 0x5d,             /* MaxV: 5.5 V */
455     [0x0b6] = 0x4e,             /* Peakl: 450 mA */
456     [0x0b8] = 0x64,             /* TPCE_IO = 16-byte boundary, 16/8 accesses */
457     [0x0ba] = 0xf0,             /* TPCE_IR =  MASK, Level, Pulse, Share */
458     [0x0bc] = 0xff,             /* IRQ0..IRQ7 supported */
459     [0x0be] = 0xff,             /* IRQ8..IRQ15 supported */
460     [0x0c0] = 0x20,             /* TPCE_MI = support power down mode */
461 
462     [0x0c2] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
463     [0x0c4] = 0x06,             /* Tuple length = 6 bytes */
464     [0x0c6] = 0x01,             /* TPCE_INDX = I/O and Memory Mode */
465     [0x0c8] = 0x01,             /* TPCE_FS = Vcc only, no I/O, no Memory */
466     [0x0ca] = 0x21,             /* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
467     [0x0cc] = 0xb5,             /* NomV: 3.3 V */
468     [0x0ce] = 0x1e,
469     [0x0d0] = 0x3e,             /* Peakl: 350 mA */
470 
471     [0x0d2] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
472     [0x0d4] = 0x12,             /* Tuple length = 18 bytes */
473     [0x0d6] = 0xc2,             /* TPCE_INDX = I/O Primary Mode */
474     [0x0d8] = 0x41,             /* TPCE_IF = I/O and Memory, no BVD, no WP */
475     [0x0da] = 0x99,             /* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
476     [0x0dc] = 0x27,             /* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
477     [0x0de] = 0x55,             /* NomV: 5.0 V */
478     [0x0e0] = 0x4d,             /* MinV: 4.5 V */
479     [0x0e2] = 0x5d,             /* MaxV: 5.5 V */
480     [0x0e4] = 0x4e,             /* Peakl: 450 mA */
481     [0x0e6] = 0xea,             /* TPCE_IO = 1K boundary, 16/8 access, Range */
482     [0x0e8] = 0x61,             /* Range: 2 fields, 2 bytes addr, 1 byte len */
483     [0x0ea] = 0xf0,             /* Field 1 address = 0x01f0 */
484     [0x0ec] = 0x01,
485     [0x0ee] = 0x07,             /* Address block length = 8 */
486     [0x0f0] = 0xf6,             /* Field 2 address = 0x03f6 */
487     [0x0f2] = 0x03,
488     [0x0f4] = 0x01,             /* Address block length = 2 */
489     [0x0f6] = 0xee,             /* TPCE_IR = IRQ E, Level, Pulse, Share */
490     [0x0f8] = 0x20,             /* TPCE_MI = support power down mode */
491 
492     [0x0fa] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
493     [0x0fc] = 0x06,             /* Tuple length = 6 bytes */
494     [0x0fe] = 0x02,             /* TPCE_INDX = I/O Primary Mode, no Default */
495     [0x100] = 0x01,             /* TPCE_FS = Vcc only, no I/O, no Memory */
496     [0x102] = 0x21,             /* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
497     [0x104] = 0xb5,             /* NomV: 3.3 V */
498     [0x106] = 0x1e,
499     [0x108] = 0x3e,             /* Peakl: 350 mA */
500 
501     [0x10a] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
502     [0x10c] = 0x12,             /* Tuple length = 18 bytes */
503     [0x10e] = 0xc3,             /* TPCE_INDX = I/O Secondary Mode, Default */
504     [0x110] = 0x41,             /* TPCE_IF = I/O and Memory, no BVD, no WP */
505     [0x112] = 0x99,             /* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
506     [0x114] = 0x27,             /* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
507     [0x116] = 0x55,             /* NomV: 5.0 V */
508     [0x118] = 0x4d,             /* MinV: 4.5 V */
509     [0x11a] = 0x5d,             /* MaxV: 5.5 V */
510     [0x11c] = 0x4e,             /* Peakl: 450 mA */
511     [0x11e] = 0xea,             /* TPCE_IO = 1K boundary, 16/8 access, Range */
512     [0x120] = 0x61,             /* Range: 2 fields, 2 byte addr, 1 byte len */
513     [0x122] = 0x70,             /* Field 1 address = 0x0170 */
514     [0x124] = 0x01,
515     [0x126] = 0x07,             /* Address block length = 8 */
516     [0x128] = 0x76,             /* Field 2 address = 0x0376 */
517     [0x12a] = 0x03,
518     [0x12c] = 0x01,             /* Address block length = 2 */
519     [0x12e] = 0xee,             /* TPCE_IR = IRQ E, Level, Pulse, Share */
520     [0x130] = 0x20,             /* TPCE_MI = support power down mode */
521 
522     [0x132] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
523     [0x134] = 0x06,             /* Tuple length = 6 bytes */
524     [0x136] = 0x03,             /* TPCE_INDX = I/O Secondary Mode */
525     [0x138] = 0x01,             /* TPCE_FS = Vcc only, no I/O, no Memory */
526     [0x13a] = 0x21,             /* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
527     [0x13c] = 0xb5,             /* NomV: 3.3 V */
528     [0x13e] = 0x1e,
529     [0x140] = 0x3e,             /* Peakl: 350 mA */
530 
531     [0x142] = CISTPL_NO_LINK,   /* No Link */
532     [0x144] = 0x00,             /* Tuple length = 0 bytes */
533 
534     [0x146] = CISTPL_END,       /* Tuple End */
535 };
536 
537 #define TYPE_DSCM1XXXX "dscm1xxxx"
538 
539 static int dscm1xxxx_attach(PCMCIACardState *card)
540 {
541     MicroDriveState *md = MICRODRIVE(card);
542     PCMCIACardClass *pcc = PCMCIA_CARD_GET_CLASS(card);
543 
544     md->attr_base = pcc->cis[0x74] | (pcc->cis[0x76] << 8);
545     md->io_base = 0x0;
546 
547     device_cold_reset(DEVICE(md));
548     md_interrupt_update(md);
549 
550     return 0;
551 }
552 
553 static int dscm1xxxx_detach(PCMCIACardState *card)
554 {
555     MicroDriveState *md = MICRODRIVE(card);
556 
557     device_cold_reset(DEVICE(md));
558     return 0;
559 }
560 
561 PCMCIACardState *dscm1xxxx_init(DriveInfo *dinfo)
562 {
563     MicroDriveState *md;
564 
565     md = MICRODRIVE(object_new(TYPE_DSCM1XXXX));
566     qdev_realize(DEVICE(md), NULL, &error_fatal);
567 
568     if (dinfo != NULL) {
569         ide_bus_create_drive(&md->bus, 0, dinfo);
570     }
571     md->bus.ifs[0].drive_kind = IDE_CFATA;
572     md->bus.ifs[0].mdata_size = METADATA_SIZE;
573     md->bus.ifs[0].mdata_storage = g_malloc0(METADATA_SIZE);
574 
575     return PCMCIA_CARD(md);
576 }
577 
578 static void dscm1xxxx_class_init(ObjectClass *oc, void *data)
579 {
580     PCMCIACardClass *pcc = PCMCIA_CARD_CLASS(oc);
581     DeviceClass *dc = DEVICE_CLASS(oc);
582 
583     pcc->cis = dscm1xxxx_cis;
584     pcc->cis_len = sizeof(dscm1xxxx_cis);
585 
586     pcc->attach = dscm1xxxx_attach;
587     pcc->detach = dscm1xxxx_detach;
588     /* Reason: Needs to be wired-up in code, see dscm1xxxx_init() */
589     dc->user_creatable = false;
590 }
591 
592 static const TypeInfo dscm1xxxx_type_info = {
593     .name = TYPE_DSCM1XXXX,
594     .parent = TYPE_MICRODRIVE,
595     .class_init = dscm1xxxx_class_init,
596 };
597 
598 static void microdrive_realize(DeviceState *dev, Error **errp)
599 {
600     MicroDriveState *md = MICRODRIVE(dev);
601 
602     ide_bus_init_output_irq(&md->bus, qemu_allocate_irq(md_set_irq, md, 0));
603 }
604 
605 static void microdrive_init(Object *obj)
606 {
607     MicroDriveState *md = MICRODRIVE(obj);
608 
609     ide_bus_init(&md->bus, sizeof(md->bus), DEVICE(obj), 0, 1);
610 }
611 
612 static void microdrive_class_init(ObjectClass *oc, void *data)
613 {
614     DeviceClass *dc = DEVICE_CLASS(oc);
615     PCMCIACardClass *pcc = PCMCIA_CARD_CLASS(oc);
616 
617     pcc->attr_read = md_attr_read;
618     pcc->attr_write = md_attr_write;
619     pcc->common_read = md_common_read;
620     pcc->common_write = md_common_write;
621     pcc->io_read = md_common_read;
622     pcc->io_write = md_common_write;
623 
624     dc->realize = microdrive_realize;
625     dc->reset = md_reset;
626     dc->vmsd = &vmstate_microdrive;
627 }
628 
629 static const TypeInfo microdrive_type_info = {
630     .name = TYPE_MICRODRIVE,
631     .parent = TYPE_PCMCIA_CARD,
632     .instance_size = sizeof(MicroDriveState),
633     .instance_init = microdrive_init,
634     .abstract = true,
635     .class_init = microdrive_class_init,
636 };
637 
638 static void microdrive_register_types(void)
639 {
640     type_register_static(&microdrive_type_info);
641     type_register_static(&dscm1xxxx_type_info);
642 }
643 
644 type_init(microdrive_register_types)
645