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qemu-irix/hw/ide/microdrive.c

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/*
* QEMU IDE Emulation: microdrive (CF / PCMCIA)
*
* Copyright (c) 2003 Fabrice Bellard
* Copyright (c) 2006 Openedhand Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <hw/hw.h>
#include <hw/pc.h>
#include <hw/pcmcia.h>
#include "block/block.h"
#include "sysemu/dma.h"
#include <hw/ide/internal.h>
/***********************************************************/
/* CF-ATA Microdrive */
#define METADATA_SIZE 0x20
/* DSCM-1XXXX Microdrive hard disk with CF+ II / PCMCIA interface. */
typedef struct {
IDEBus bus;
PCMCIACardState card;
uint32_t attr_base;
uint32_t io_base;
/* Card state */
uint8_t opt;
uint8_t stat;
uint8_t pins;
uint8_t ctrl;
uint16_t io;
uint8_t cycle;
} MicroDriveState;
/* Register bitfields */
enum md_opt {
OPT_MODE_MMAP = 0,
OPT_MODE_IOMAP16 = 1,
OPT_MODE_IOMAP1 = 2,
OPT_MODE_IOMAP2 = 3,
OPT_MODE = 0x3f,
OPT_LEVIREQ = 0x40,
OPT_SRESET = 0x80,
};
enum md_cstat {
STAT_INT = 0x02,
STAT_PWRDWN = 0x04,
STAT_XE = 0x10,
STAT_IOIS8 = 0x20,
STAT_SIGCHG = 0x40,
STAT_CHANGED = 0x80,
};
enum md_pins {
PINS_MRDY = 0x02,
PINS_CRDY = 0x20,
};
enum md_ctrl {
CTRL_IEN = 0x02,
CTRL_SRST = 0x04,
};
static inline void md_interrupt_update(MicroDriveState *s)
{
if (!s->card.slot)
return;
qemu_set_irq(s->card.slot->irq,
!(s->stat & STAT_INT) && /* Inverted */
!(s->ctrl & (CTRL_IEN | CTRL_SRST)) &&
!(s->opt & OPT_SRESET));
}
static void md_set_irq(void *opaque, int irq, int level)
{
MicroDriveState *s = opaque;
if (level)
s->stat |= STAT_INT;
else
s->stat &= ~STAT_INT;
md_interrupt_update(s);
}
static void md_reset(MicroDriveState *s)
{
s->opt = OPT_MODE_MMAP;
s->stat = 0;
s->pins = 0;
s->cycle = 0;
s->ctrl = 0;
ide_bus_reset(&s->bus);
}
static uint8_t md_attr_read(void *opaque, uint32_t at)
{
MicroDriveState *s = opaque;
if (at < s->attr_base) {
if (at < s->card.cis_len)
return s->card.cis[at];
else
return 0x00;
}
at -= s->attr_base;
switch (at) {
case 0x00: /* Configuration Option Register */
return s->opt;
case 0x02: /* Card Configuration Status Register */
if (s->ctrl & CTRL_IEN)
return s->stat & ~STAT_INT;
else
return s->stat;
case 0x04: /* Pin Replacement Register */
return (s->pins & PINS_CRDY) | 0x0c;
case 0x06: /* Socket and Copy Register */
return 0x00;
#ifdef VERBOSE
default:
printf("%s: Bad attribute space register %02x\n", __FUNCTION__, at);
#endif
}
return 0;
}
static void md_attr_write(void *opaque, uint32_t at, uint8_t value)
{
MicroDriveState *s = opaque;
at -= s->attr_base;
switch (at) {
case 0x00: /* Configuration Option Register */
s->opt = value & 0xcf;
if (value & OPT_SRESET)
md_reset(s);
md_interrupt_update(s);
break;
case 0x02: /* Card Configuration Status Register */
if ((s->stat ^ value) & STAT_PWRDWN)
s->pins |= PINS_CRDY;
s->stat &= 0x82;
s->stat |= value & 0x74;
md_interrupt_update(s);
/* Word 170 in Identify Device must be equal to STAT_XE */
break;
case 0x04: /* Pin Replacement Register */
s->pins &= PINS_CRDY;
s->pins |= value & PINS_MRDY;
break;
case 0x06: /* Socket and Copy Register */
break;
default:
printf("%s: Bad attribute space register %02x\n", __FUNCTION__, at);
}
}
static uint16_t md_common_read(void *opaque, uint32_t at)
{
MicroDriveState *s = opaque;
IDEState *ifs;
uint16_t ret;
at -= s->io_base;
switch (s->opt & OPT_MODE) {
case OPT_MODE_MMAP:
if ((at & ~0x3ff) == 0x400)
at = 0;
break;
case OPT_MODE_IOMAP16:
at &= 0xf;
break;
case OPT_MODE_IOMAP1:
if ((at & ~0xf) == 0x3f0)
at -= 0x3e8;
else if ((at & ~0xf) == 0x1f0)
at -= 0x1f0;
break;
case OPT_MODE_IOMAP2:
if ((at & ~0xf) == 0x370)
at -= 0x368;
else if ((at & ~0xf) == 0x170)
at -= 0x170;
}
switch (at) {
case 0x0: /* Even RD Data */
case 0x8:
return ide_data_readw(&s->bus, 0);
/* TODO: 8-bit accesses */
if (s->cycle)
ret = s->io >> 8;
else {
s->io = ide_data_readw(&s->bus, 0);
ret = s->io & 0xff;
}
s->cycle = !s->cycle;
return ret;
case 0x9: /* Odd RD Data */
return s->io >> 8;
case 0xd: /* Error */
return ide_ioport_read(&s->bus, 0x1);
case 0xe: /* Alternate Status */
ifs = idebus_active_if(&s->bus);
if (ifs->bs)
return ifs->status;
else
return 0;
case 0xf: /* Device Address */
ifs = idebus_active_if(&s->bus);
return 0xc2 | ((~ifs->select << 2) & 0x3c);
default:
return ide_ioport_read(&s->bus, at);
}
return 0;
}
static void md_common_write(void *opaque, uint32_t at, uint16_t value)
{
MicroDriveState *s = opaque;
at -= s->io_base;
switch (s->opt & OPT_MODE) {
case OPT_MODE_MMAP:
if ((at & ~0x3ff) == 0x400)
at = 0;
break;
case OPT_MODE_IOMAP16:
at &= 0xf;
break;
case OPT_MODE_IOMAP1:
if ((at & ~0xf) == 0x3f0)
at -= 0x3e8;
else if ((at & ~0xf) == 0x1f0)
at -= 0x1f0;
break;
case OPT_MODE_IOMAP2:
if ((at & ~0xf) == 0x370)
at -= 0x368;
else if ((at & ~0xf) == 0x170)
at -= 0x170;
}
switch (at) {
case 0x0: /* Even WR Data */
case 0x8:
ide_data_writew(&s->bus, 0, value);
break;
/* TODO: 8-bit accesses */
if (s->cycle)
ide_data_writew(&s->bus, 0, s->io | (value << 8));
else
s->io = value & 0xff;
s->cycle = !s->cycle;
break;
case 0x9:
s->io = value & 0xff;
s->cycle = !s->cycle;
break;
case 0xd: /* Features */
ide_ioport_write(&s->bus, 0x1, value);
break;
case 0xe: /* Device Control */
s->ctrl = value;
if (value & CTRL_SRST)
md_reset(s);
md_interrupt_update(s);
break;
default:
if (s->stat & STAT_PWRDWN) {
s->pins |= PINS_CRDY;
s->stat &= ~STAT_PWRDWN;
}
ide_ioport_write(&s->bus, at, value);
}
}
static const VMStateDescription vmstate_microdrive = {
.name = "microdrive",
.version_id = 3,
.minimum_version_id = 0,
.minimum_version_id_old = 0,
.fields = (VMStateField []) {
VMSTATE_UINT8(opt, MicroDriveState),
VMSTATE_UINT8(stat, MicroDriveState),
VMSTATE_UINT8(pins, MicroDriveState),
VMSTATE_UINT8(ctrl, MicroDriveState),
VMSTATE_UINT16(io, MicroDriveState),
VMSTATE_UINT8(cycle, MicroDriveState),
VMSTATE_IDE_BUS(bus, MicroDriveState),
VMSTATE_IDE_DRIVES(bus.ifs, MicroDriveState),
VMSTATE_END_OF_LIST()
}
};
static const uint8_t dscm1xxxx_cis[0x14a] = {
[0x000] = CISTPL_DEVICE, /* 5V Device Information */
[0x002] = 0x03, /* Tuple length = 4 bytes */
[0x004] = 0xdb, /* ID: DTYPE_FUNCSPEC, non WP, DSPEED_150NS */
[0x006] = 0x01, /* Size = 2K bytes */
[0x008] = CISTPL_ENDMARK,
[0x00a] = CISTPL_DEVICE_OC, /* Additional Device Information */
[0x00c] = 0x04, /* Tuple length = 4 byest */
[0x00e] = 0x03, /* Conditions: Ext = 0, Vcc 3.3V, MWAIT = 1 */
[0x010] = 0xdb, /* ID: DTYPE_FUNCSPEC, non WP, DSPEED_150NS */
[0x012] = 0x01, /* Size = 2K bytes */
[0x014] = CISTPL_ENDMARK,
[0x016] = CISTPL_JEDEC_C, /* JEDEC ID */
[0x018] = 0x02, /* Tuple length = 2 bytes */
[0x01a] = 0xdf, /* PC Card ATA with no Vpp required */
[0x01c] = 0x01,
[0x01e] = CISTPL_MANFID, /* Manufacture ID */
[0x020] = 0x04, /* Tuple length = 4 bytes */
[0x022] = 0xa4, /* TPLMID_MANF = 00a4 (IBM) */
[0x024] = 0x00,
[0x026] = 0x00, /* PLMID_CARD = 0000 */
[0x028] = 0x00,
[0x02a] = CISTPL_VERS_1, /* Level 1 Version */
[0x02c] = 0x12, /* Tuple length = 23 bytes */
[0x02e] = 0x04, /* Major Version = JEIDA 4.2 / PCMCIA 2.1 */
[0x030] = 0x01, /* Minor Version = 1 */
[0x032] = 'I',
[0x034] = 'B',
[0x036] = 'M',
[0x038] = 0x00,
[0x03a] = 'm',
[0x03c] = 'i',
[0x03e] = 'c',
[0x040] = 'r',
[0x042] = 'o',
[0x044] = 'd',
[0x046] = 'r',
[0x048] = 'i',
[0x04a] = 'v',
[0x04c] = 'e',
[0x04e] = 0x00,
[0x050] = CISTPL_ENDMARK,
[0x052] = CISTPL_FUNCID, /* Function ID */
[0x054] = 0x02, /* Tuple length = 2 bytes */
[0x056] = 0x04, /* TPLFID_FUNCTION = Fixed Disk */
[0x058] = 0x01, /* TPLFID_SYSINIT: POST = 1, ROM = 0 */
[0x05a] = CISTPL_FUNCE, /* Function Extension */
[0x05c] = 0x02, /* Tuple length = 2 bytes */
[0x05e] = 0x01, /* TPLFE_TYPE = Disk Device Interface */
[0x060] = 0x01, /* TPLFE_DATA = PC Card ATA Interface */
[0x062] = CISTPL_FUNCE, /* Function Extension */
[0x064] = 0x03, /* Tuple length = 3 bytes */
[0x066] = 0x02, /* TPLFE_TYPE = Basic PC Card ATA Interface */
[0x068] = 0x08, /* TPLFE_DATA: Rotating, Unique, Single */
[0x06a] = 0x0f, /* TPLFE_DATA: Sleep, Standby, Idle, Auto */
[0x06c] = CISTPL_CONFIG, /* Configuration */
[0x06e] = 0x05, /* Tuple length = 5 bytes */
[0x070] = 0x01, /* TPCC_RASZ = 2 bytes, TPCC_RMSZ = 1 byte */
[0x072] = 0x07, /* TPCC_LAST = 7 */
[0x074] = 0x00, /* TPCC_RADR = 0200 */
[0x076] = 0x02,
[0x078] = 0x0f, /* TPCC_RMSK = 200, 202, 204, 206 */
[0x07a] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
[0x07c] = 0x0b, /* Tuple length = 11 bytes */
[0x07e] = 0xc0, /* TPCE_INDX = Memory Mode, Default, Iface */
[0x080] = 0xc0, /* TPCE_IF = Memory, no BVDs, no WP, READY */
[0x082] = 0xa1, /* TPCE_FS = Vcc only, no I/O, Memory, Misc */
[0x084] = 0x27, /* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
[0x086] = 0x55, /* NomV: 5.0 V */
[0x088] = 0x4d, /* MinV: 4.5 V */
[0x08a] = 0x5d, /* MaxV: 5.5 V */
[0x08c] = 0x4e, /* Peakl: 450 mA */
[0x08e] = 0x08, /* TPCE_MS = 1 window, 1 byte, Host address */
[0x090] = 0x00, /* Window descriptor: Window length = 0 */
[0x092] = 0x20, /* TPCE_MI: support power down mode, RW */
[0x094] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
[0x096] = 0x06, /* Tuple length = 6 bytes */
[0x098] = 0x00, /* TPCE_INDX = Memory Mode, no Default */
[0x09a] = 0x01, /* TPCE_FS = Vcc only, no I/O, no Memory */
[0x09c] = 0x21, /* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
[0x09e] = 0xb5, /* NomV: 3.3 V */
[0x0a0] = 0x1e,
[0x0a2] = 0x3e, /* Peakl: 350 mA */
[0x0a4] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
[0x0a6] = 0x0d, /* Tuple length = 13 bytes */
[0x0a8] = 0xc1, /* TPCE_INDX = I/O and Memory Mode, Default */
[0x0aa] = 0x41, /* TPCE_IF = I/O and Memory, no BVD, no WP */
[0x0ac] = 0x99, /* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
[0x0ae] = 0x27, /* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
[0x0b0] = 0x55, /* NomV: 5.0 V */
[0x0b2] = 0x4d, /* MinV: 4.5 V */
[0x0b4] = 0x5d, /* MaxV: 5.5 V */
[0x0b6] = 0x4e, /* Peakl: 450 mA */
[0x0b8] = 0x64, /* TPCE_IO = 16-byte boundary, 16/8 accesses */
[0x0ba] = 0xf0, /* TPCE_IR = MASK, Level, Pulse, Share */
[0x0bc] = 0xff, /* IRQ0..IRQ7 supported */
[0x0be] = 0xff, /* IRQ8..IRQ15 supported */
[0x0c0] = 0x20, /* TPCE_MI = support power down mode */
[0x0c2] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
[0x0c4] = 0x06, /* Tuple length = 6 bytes */
[0x0c6] = 0x01, /* TPCE_INDX = I/O and Memory Mode */
[0x0c8] = 0x01, /* TPCE_FS = Vcc only, no I/O, no Memory */
[0x0ca] = 0x21, /* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
[0x0cc] = 0xb5, /* NomV: 3.3 V */
[0x0ce] = 0x1e,
[0x0d0] = 0x3e, /* Peakl: 350 mA */
[0x0d2] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
[0x0d4] = 0x12, /* Tuple length = 18 bytes */
[0x0d6] = 0xc2, /* TPCE_INDX = I/O Primary Mode */
[0x0d8] = 0x41, /* TPCE_IF = I/O and Memory, no BVD, no WP */
[0x0da] = 0x99, /* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
[0x0dc] = 0x27, /* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
[0x0de] = 0x55, /* NomV: 5.0 V */
[0x0e0] = 0x4d, /* MinV: 4.5 V */
[0x0e2] = 0x5d, /* MaxV: 5.5 V */
[0x0e4] = 0x4e, /* Peakl: 450 mA */
[0x0e6] = 0xea, /* TPCE_IO = 1K boundary, 16/8 access, Range */
[0x0e8] = 0x61, /* Range: 2 fields, 2 bytes addr, 1 byte len */
[0x0ea] = 0xf0, /* Field 1 address = 0x01f0 */
[0x0ec] = 0x01,
[0x0ee] = 0x07, /* Address block length = 8 */
[0x0f0] = 0xf6, /* Field 2 address = 0x03f6 */
[0x0f2] = 0x03,
[0x0f4] = 0x01, /* Address block length = 2 */
[0x0f6] = 0xee, /* TPCE_IR = IRQ E, Level, Pulse, Share */
[0x0f8] = 0x20, /* TPCE_MI = support power down mode */
[0x0fa] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
[0x0fc] = 0x06, /* Tuple length = 6 bytes */
[0x0fe] = 0x02, /* TPCE_INDX = I/O Primary Mode, no Default */
[0x100] = 0x01, /* TPCE_FS = Vcc only, no I/O, no Memory */
[0x102] = 0x21, /* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
[0x104] = 0xb5, /* NomV: 3.3 V */
[0x106] = 0x1e,
[0x108] = 0x3e, /* Peakl: 350 mA */
[0x10a] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
[0x10c] = 0x12, /* Tuple length = 18 bytes */
[0x10e] = 0xc3, /* TPCE_INDX = I/O Secondary Mode, Default */
[0x110] = 0x41, /* TPCE_IF = I/O and Memory, no BVD, no WP */
[0x112] = 0x99, /* TPCE_FS = Vcc only, I/O, Interrupt, Misc */
[0x114] = 0x27, /* NomV = 1, MinV = 1, MaxV = 1, Peakl = 1 */
[0x116] = 0x55, /* NomV: 5.0 V */
[0x118] = 0x4d, /* MinV: 4.5 V */
[0x11a] = 0x5d, /* MaxV: 5.5 V */
[0x11c] = 0x4e, /* Peakl: 450 mA */
[0x11e] = 0xea, /* TPCE_IO = 1K boundary, 16/8 access, Range */
[0x120] = 0x61, /* Range: 2 fields, 2 byte addr, 1 byte len */
[0x122] = 0x70, /* Field 1 address = 0x0170 */
[0x124] = 0x01,
[0x126] = 0x07, /* Address block length = 8 */
[0x128] = 0x76, /* Field 2 address = 0x0376 */
[0x12a] = 0x03,
[0x12c] = 0x01, /* Address block length = 2 */
[0x12e] = 0xee, /* TPCE_IR = IRQ E, Level, Pulse, Share */
[0x130] = 0x20, /* TPCE_MI = support power down mode */
[0x132] = CISTPL_CFTABLE_ENTRY, /* 16-bit PC Card Configuration */
[0x134] = 0x06, /* Tuple length = 6 bytes */
[0x136] = 0x03, /* TPCE_INDX = I/O Secondary Mode */
[0x138] = 0x01, /* TPCE_FS = Vcc only, no I/O, no Memory */
[0x13a] = 0x21, /* NomV = 1, MinV = 0, MaxV = 0, Peakl = 1 */
[0x13c] = 0xb5, /* NomV: 3.3 V */
[0x13e] = 0x1e,
[0x140] = 0x3e, /* Peakl: 350 mA */
[0x142] = CISTPL_NO_LINK, /* No Link */
[0x144] = 0x00, /* Tuple length = 0 bytes */
[0x146] = CISTPL_END, /* Tuple End */
};
static int dscm1xxxx_attach(void *opaque)
{
MicroDriveState *md = opaque;
md->card.attr_read = md_attr_read;
md->card.attr_write = md_attr_write;
md->card.common_read = md_common_read;
md->card.common_write = md_common_write;
md->card.io_read = md_common_read;
md->card.io_write = md_common_write;
md->attr_base = md->card.cis[0x74] | (md->card.cis[0x76] << 8);
md->io_base = 0x0;
md_reset(md);
md_interrupt_update(md);
md->card.slot->card_string = "DSCM-1xxxx Hitachi Microdrive";
return 0;
}
static int dscm1xxxx_detach(void *opaque)
{
MicroDriveState *md = opaque;
md_reset(md);
return 0;
}
PCMCIACardState *dscm1xxxx_init(DriveInfo *bdrv)
{
MicroDriveState *md = (MicroDriveState *) g_malloc0(sizeof(MicroDriveState));
md->card.state = md;
md->card.attach = dscm1xxxx_attach;
md->card.detach = dscm1xxxx_detach;
md->card.cis = dscm1xxxx_cis;
md->card.cis_len = sizeof(dscm1xxxx_cis);
ide_init2_with_non_qdev_drives(&md->bus, bdrv, NULL,
qemu_allocate_irqs(md_set_irq, md, 1)[0]);
md->bus.ifs[0].drive_kind = IDE_CFATA;
md->bus.ifs[0].mdata_size = METADATA_SIZE;
md->bus.ifs[0].mdata_storage = (uint8_t *) g_malloc0(METADATA_SIZE);
vmstate_register(NULL, -1, &vmstate_microdrive, md);
return &md->card;
}
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