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qemu/hw/ide/pci.c
Stefan Weil ae027ad3c5 mips malta: Fix fdc regression and use qdev for i8042 setup 
8baf73adf6 (qdev/isa: convert fdc)
breaks MIPS Malta:

Tried to create isa device isa-fdc with no isa bus present

Fix this by creating an isa bus for piix4.
This change also requires some more qdev related changes
(similar changes were applied to pc.c) and allows
cleaning of piix3/piix4 code.

Thanks to Gerd Hoffmann for his hints.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-04 09:37:34 -05:00

514 lines
15 KiB
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/*
* QEMU IDE Emulation: PCI Bus support.
*
* 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/pci.h>
#include "block.h"
#include "block_int.h"
#include "sysemu.h"
#include "dma.h"
#include <hw/ide/internal.h>
/***********************************************************/
/* PCI IDE definitions */
/* CMD646 specific */
#define MRDMODE 0x71
#define MRDMODE_INTR_CH0 0x04
#define MRDMODE_INTR_CH1 0x08
#define MRDMODE_BLK_CH0 0x10
#define MRDMODE_BLK_CH1 0x20
#define UDIDETCR0 0x73
#define UDIDETCR1 0x7B
#define IDE_TYPE_PIIX3 0
#define IDE_TYPE_CMD646 1
#define IDE_TYPE_PIIX4 2
typedef struct PCIIDEState {
PCIDevice dev;
IDEBus bus[2];
BMDMAState bmdma[2];
int type; /* see IDE_TYPE_xxx */
} PCIIDEState;
static void cmd646_update_irq(PCIIDEState *d);
static void ide_map(PCIDevice *pci_dev, int region_num,
uint32_t addr, uint32_t size, int type)
{
PCIIDEState *d = (PCIIDEState *)pci_dev;
IDEBus *bus;
if (region_num <= 3) {
bus = &d->bus[(region_num >> 1)];
if (region_num & 1) {
register_ioport_read(addr + 2, 1, 1, ide_status_read, bus);
register_ioport_write(addr + 2, 1, 1, ide_cmd_write, bus);
} else {
register_ioport_write(addr, 8, 1, ide_ioport_write, bus);
register_ioport_read(addr, 8, 1, ide_ioport_read, bus);
/* data ports */
register_ioport_write(addr, 2, 2, ide_data_writew, bus);
register_ioport_read(addr, 2, 2, ide_data_readw, bus);
register_ioport_write(addr, 4, 4, ide_data_writel, bus);
register_ioport_read(addr, 4, 4, ide_data_readl, bus);
}
}
}
static void bmdma_cmd_writeb(void *opaque, uint32_t addr, uint32_t val)
{
BMDMAState *bm = opaque;
#ifdef DEBUG_IDE
printf("%s: 0x%08x\n", __func__, val);
#endif
if (!(val & BM_CMD_START)) {
/* XXX: do it better */
ide_dma_cancel(bm);
bm->cmd = val & 0x09;
} else {
if (!(bm->status & BM_STATUS_DMAING)) {
bm->status |= BM_STATUS_DMAING;
/* start dma transfer if possible */
if (bm->dma_cb)
bm->dma_cb(bm, 0);
}
bm->cmd = val & 0x09;
}
}
static uint32_t bmdma_readb(void *opaque, uint32_t addr)
{
BMDMAState *bm = opaque;
PCIIDEState *pci_dev;
uint32_t val;
switch(addr & 3) {
case 0:
val = bm->cmd;
break;
case 1:
pci_dev = bm->pci_dev;
if (pci_dev->type == IDE_TYPE_CMD646) {
val = pci_dev->dev.config[MRDMODE];
} else {
val = 0xff;
}
break;
case 2:
val = bm->status;
break;
case 3:
pci_dev = bm->pci_dev;
if (pci_dev->type == IDE_TYPE_CMD646) {
if (bm == &pci_dev->bmdma[0])
val = pci_dev->dev.config[UDIDETCR0];
else
val = pci_dev->dev.config[UDIDETCR1];
} else {
val = 0xff;
}
break;
default:
val = 0xff;
break;
}
#ifdef DEBUG_IDE
printf("bmdma: readb 0x%02x : 0x%02x\n", addr, val);
#endif
return val;
}
static void bmdma_writeb(void *opaque, uint32_t addr, uint32_t val)
{
BMDMAState *bm = opaque;
PCIIDEState *pci_dev;
#ifdef DEBUG_IDE
printf("bmdma: writeb 0x%02x : 0x%02x\n", addr, val);
#endif
switch(addr & 3) {
case 1:
pci_dev = bm->pci_dev;
if (pci_dev->type == IDE_TYPE_CMD646) {
pci_dev->dev.config[MRDMODE] =
(pci_dev->dev.config[MRDMODE] & ~0x30) | (val & 0x30);
cmd646_update_irq(pci_dev);
}
break;
case 2:
bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
break;
case 3:
pci_dev = bm->pci_dev;
if (pci_dev->type == IDE_TYPE_CMD646) {
if (bm == &pci_dev->bmdma[0])
pci_dev->dev.config[UDIDETCR0] = val;
else
pci_dev->dev.config[UDIDETCR1] = val;
}
break;
}
}
static uint32_t bmdma_addr_readb(void *opaque, uint32_t addr)
{
BMDMAState *bm = opaque;
uint32_t val;
val = (bm->addr >> ((addr & 3) * 8)) & 0xff;
#ifdef DEBUG_IDE
printf("%s: 0x%08x\n", __func__, val);
#endif
return val;
}
static void bmdma_addr_writeb(void *opaque, uint32_t addr, uint32_t val)
{
BMDMAState *bm = opaque;
int shift = (addr & 3) * 8;
#ifdef DEBUG_IDE
printf("%s: 0x%08x\n", __func__, val);
#endif
bm->addr &= ~(0xFF << shift);
bm->addr |= ((val & 0xFF) << shift) & ~3;
bm->cur_addr = bm->addr;
}
static uint32_t bmdma_addr_readw(void *opaque, uint32_t addr)
{
BMDMAState *bm = opaque;
uint32_t val;
val = (bm->addr >> ((addr & 3) * 8)) & 0xffff;
#ifdef DEBUG_IDE
printf("%s: 0x%08x\n", __func__, val);
#endif
return val;
}
static void bmdma_addr_writew(void *opaque, uint32_t addr, uint32_t val)
{
BMDMAState *bm = opaque;
int shift = (addr & 3) * 8;
#ifdef DEBUG_IDE
printf("%s: 0x%08x\n", __func__, val);
#endif
bm->addr &= ~(0xFFFF << shift);
bm->addr |= ((val & 0xFFFF) << shift) & ~3;
bm->cur_addr = bm->addr;
}
static uint32_t bmdma_addr_readl(void *opaque, uint32_t addr)
{
BMDMAState *bm = opaque;
uint32_t val;
val = bm->addr;
#ifdef DEBUG_IDE
printf("%s: 0x%08x\n", __func__, val);
#endif
return val;
}
static void bmdma_addr_writel(void *opaque, uint32_t addr, uint32_t val)
{
BMDMAState *bm = opaque;
#ifdef DEBUG_IDE
printf("%s: 0x%08x\n", __func__, val);
#endif
bm->addr = val & ~3;
bm->cur_addr = bm->addr;
}
static void bmdma_map(PCIDevice *pci_dev, int region_num,
uint32_t addr, uint32_t size, int type)
{
PCIIDEState *d = (PCIIDEState *)pci_dev;
int i;
for(i = 0;i < 2; i++) {
BMDMAState *bm = &d->bmdma[i];
d->bus[i].bmdma = bm;
bm->pci_dev = DO_UPCAST(PCIIDEState, dev, pci_dev);
bm->bus = d->bus+i;
qemu_add_vm_change_state_handler(ide_dma_restart_cb, bm);
register_ioport_write(addr, 1, 1, bmdma_cmd_writeb, bm);
register_ioport_write(addr + 1, 3, 1, bmdma_writeb, bm);
register_ioport_read(addr, 4, 1, bmdma_readb, bm);
register_ioport_write(addr + 4, 4, 1, bmdma_addr_writeb, bm);
register_ioport_read(addr + 4, 4, 1, bmdma_addr_readb, bm);
register_ioport_write(addr + 4, 4, 2, bmdma_addr_writew, bm);
register_ioport_read(addr + 4, 4, 2, bmdma_addr_readw, bm);
register_ioport_write(addr + 4, 4, 4, bmdma_addr_writel, bm);
register_ioport_read(addr + 4, 4, 4, bmdma_addr_readl, bm);
addr += 8;
}
}
static void pci_ide_save(QEMUFile* f, void *opaque)
{
PCIIDEState *d = opaque;
int i;
pci_device_save(&d->dev, f);
for(i = 0; i < 2; i++) {
BMDMAState *bm = &d->bmdma[i];
uint8_t ifidx;
qemu_put_8s(f, &bm->cmd);
qemu_put_8s(f, &bm->status);
qemu_put_be32s(f, &bm->addr);
qemu_put_sbe64s(f, &bm->sector_num);
qemu_put_be32s(f, &bm->nsector);
ifidx = bm->unit + 2*i;
qemu_put_8s(f, &ifidx);
/* XXX: if a transfer is pending, we do not save it yet */
}
/* per IDE interface data */
for(i = 0; i < 2; i++) {
idebus_save(f, &d->bus[i]);
}
/* per IDE drive data */
for(i = 0; i < 2; i++) {
ide_save(f, &d->bus[i].ifs[0]);
ide_save(f, &d->bus[i].ifs[1]);
}
}
static int pci_ide_load(QEMUFile* f, void *opaque, int version_id)
{
PCIIDEState *d = opaque;
int ret, i;
if (version_id != 2 && version_id != 3)
return -EINVAL;
ret = pci_device_load(&d->dev, f);
if (ret < 0)
return ret;
for(i = 0; i < 2; i++) {
BMDMAState *bm = &d->bmdma[i];
uint8_t ifidx;
qemu_get_8s(f, &bm->cmd);
qemu_get_8s(f, &bm->status);
qemu_get_be32s(f, &bm->addr);
qemu_get_sbe64s(f, &bm->sector_num);
qemu_get_be32s(f, &bm->nsector);
qemu_get_8s(f, &ifidx);
bm->unit = ifidx & 1;
/* XXX: if a transfer is pending, we do not save it yet */
}
/* per IDE interface data */
for(i = 0; i < 2; i++) {
idebus_load(f, &d->bus[i], version_id);
}
/* per IDE drive data */
for(i = 0; i < 2; i++) {
ide_load(f, &d->bus[i].ifs[0], version_id);
ide_load(f, &d->bus[i].ifs[1], version_id);
}
return 0;
}
/* XXX: call it also when the MRDMODE is changed from the PCI config
registers */
static void cmd646_update_irq(PCIIDEState *d)
{
int pci_level;
pci_level = ((d->dev.config[MRDMODE] & MRDMODE_INTR_CH0) &&
!(d->dev.config[MRDMODE] & MRDMODE_BLK_CH0)) ||
((d->dev.config[MRDMODE] & MRDMODE_INTR_CH1) &&
!(d->dev.config[MRDMODE] & MRDMODE_BLK_CH1));
qemu_set_irq(d->dev.irq[0], pci_level);
}
/* the PCI irq level is the logical OR of the two channels */
static void cmd646_set_irq(void *opaque, int channel, int level)
{
PCIIDEState *d = opaque;
int irq_mask;
irq_mask = MRDMODE_INTR_CH0 << channel;
if (level)
d->dev.config[MRDMODE] |= irq_mask;
else
d->dev.config[MRDMODE] &= ~irq_mask;
cmd646_update_irq(d);
}
static void cmd646_reset(void *opaque)
{
PCIIDEState *d = opaque;
unsigned int i;
for (i = 0; i < 2; i++)
ide_dma_cancel(&d->bmdma[i]);
}
/* CMD646 PCI IDE controller */
void pci_cmd646_ide_init(PCIBus *bus, DriveInfo **hd_table,
int secondary_ide_enabled)
{
PCIIDEState *d;
uint8_t *pci_conf;
qemu_irq *irq;
d = (PCIIDEState *)pci_register_device(bus, "CMD646 IDE",
sizeof(PCIIDEState),
-1,
NULL, NULL);
d->type = IDE_TYPE_CMD646;
pci_conf = d->dev.config;
pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_CMD);
pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_CMD_646);
pci_conf[0x08] = 0x07; // IDE controller revision
pci_conf[0x09] = 0x8f;
pci_config_set_class(pci_conf, PCI_CLASS_STORAGE_IDE);
pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
pci_conf[0x51] = 0x04; // enable IDE0
if (secondary_ide_enabled) {
/* XXX: if not enabled, really disable the seconday IDE controller */
pci_conf[0x51] |= 0x08; /* enable IDE1 */
}
pci_register_bar((PCIDevice *)d, 0, 0x8,
PCI_ADDRESS_SPACE_IO, ide_map);
pci_register_bar((PCIDevice *)d, 1, 0x4,
PCI_ADDRESS_SPACE_IO, ide_map);
pci_register_bar((PCIDevice *)d, 2, 0x8,
PCI_ADDRESS_SPACE_IO, ide_map);
pci_register_bar((PCIDevice *)d, 3, 0x4,
PCI_ADDRESS_SPACE_IO, ide_map);
pci_register_bar((PCIDevice *)d, 4, 0x10,
PCI_ADDRESS_SPACE_IO, bmdma_map);
pci_conf[0x3d] = 0x01; // interrupt on pin 1
irq = qemu_allocate_irqs(cmd646_set_irq, d, 2);
ide_init2(&d->bus[0], hd_table[0], hd_table[1], irq[0]);
ide_init2(&d->bus[1], hd_table[2], hd_table[3], irq[1]);
register_savevm("ide", 0, 3, pci_ide_save, pci_ide_load, d);
qemu_register_reset(cmd646_reset, d);
cmd646_reset(d);
}
static void piix3_reset(void *opaque)
{
PCIIDEState *d = opaque;
uint8_t *pci_conf = d->dev.config;
int i;
for (i = 0; i < 2; i++)
ide_dma_cancel(&d->bmdma[i]);
pci_conf[0x04] = 0x00;
pci_conf[0x05] = 0x00;
pci_conf[0x06] = 0x80; /* FBC */
pci_conf[0x07] = 0x02; // PCI_status_devsel_medium
pci_conf[0x20] = 0x01; /* BMIBA: 20-23h */
}
/* hd_table must contain 4 block drivers */
/* NOTE: for the PIIX3, the IRQs and IOports are hardcoded */
void pci_piix3_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
{
PCIIDEState *d;
uint8_t *pci_conf;
/* register a function 1 of PIIX3 */
d = (PCIIDEState *)pci_register_device(bus, "PIIX3 IDE",
sizeof(PCIIDEState),
devfn,
NULL, NULL);
d->type = IDE_TYPE_PIIX3;
pci_conf = d->dev.config;
pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_INTEL);
pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82371SB_1);
pci_conf[0x09] = 0x80; // legacy ATA mode
pci_config_set_class(pci_conf, PCI_CLASS_STORAGE_IDE);
pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
qemu_register_reset(piix3_reset, d);
piix3_reset(d);
pci_register_bar((PCIDevice *)d, 4, 0x10,
PCI_ADDRESS_SPACE_IO, bmdma_map);
ide_init2(&d->bus[0], hd_table[0], hd_table[1], isa_reserve_irq(14));
ide_init2(&d->bus[1], hd_table[2], hd_table[3], isa_reserve_irq(15));
ide_init_ioport(&d->bus[0], 0x1f0, 0x3f6);
ide_init_ioport(&d->bus[1], 0x170, 0x376);
register_savevm("ide", 0, 3, pci_ide_save, pci_ide_load, d);
}
/* hd_table must contain 4 block drivers */
/* NOTE: for the PIIX4, the IRQs and IOports are hardcoded */
void pci_piix4_ide_init(PCIBus *bus, DriveInfo **hd_table, int devfn)
{
PCIIDEState *d;
uint8_t *pci_conf;
/* register a function 1 of PIIX4 */
d = (PCIIDEState *)pci_register_device(bus, "PIIX4 IDE",
sizeof(PCIIDEState),
devfn,
NULL, NULL);
d->type = IDE_TYPE_PIIX4;
pci_conf = d->dev.config;
pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_INTEL);
pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_INTEL_82371AB);
pci_conf[0x09] = 0x80; // legacy ATA mode
pci_config_set_class(pci_conf, PCI_CLASS_STORAGE_IDE);
pci_conf[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
qemu_register_reset(piix3_reset, d);
piix3_reset(d);
pci_register_bar((PCIDevice *)d, 4, 0x10,
PCI_ADDRESS_SPACE_IO, bmdma_map);
ide_init2(&d->bus[0], hd_table[0], hd_table[1], isa_reserve_irq(14));
ide_init2(&d->bus[1], hd_table[2], hd_table[3], isa_reserve_irq(15));
ide_init_ioport(&d->bus[0], 0x1f0, 0x3f6);
ide_init_ioport(&d->bus[1], 0x170, 0x376);
register_savevm("ide", 0, 3, pci_ide_save, pci_ide_load, d);
}
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