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-rw-r--r--hw/ide/cmd646.c280
1 files changed, 280 insertions, 0 deletions
diff --git a/hw/ide/cmd646.c b/hw/ide/cmd646.c
new file mode 100644
index 0000000000..8c8daa146e
--- /dev/null
+++ b/hw/ide/cmd646.c
@@ -0,0 +1,280 @@
+/*
+ * QEMU IDE Emulation: PCI cmd646 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 <hw/isa.h>
+#include "block.h"
+#include "block_int.h"
+#include "sysemu.h"
+#include "dma.h"
+
+#include <hw/ide/pci.h>
+
+/* 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
+
+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 = DO_UPCAST(PCIIDEState, dev, 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 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 void bmdma_map(PCIDevice *pci_dev, int region_num,
+ uint32_t addr, uint32_t size, int type)
+{
+ PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, 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;
+ }
+}
+
+/* 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 */
+static int pci_cmd646_ide_initfn(PCIDevice *dev)
+{
+ PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
+ uint8_t *pci_conf = d->dev.config;
+ qemu_irq *irq;
+
+ d->type = IDE_TYPE_CMD646;
+ 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 (d->secondary) {
+ /* XXX: if not enabled, really disable the seconday IDE controller */
+ pci_conf[0x51] |= 0x08; /* enable IDE1 */
+ }
+
+ pci_register_bar(dev, 0, 0x8, PCI_ADDRESS_SPACE_IO, ide_map);
+ pci_register_bar(dev, 1, 0x4, PCI_ADDRESS_SPACE_IO, ide_map);
+ pci_register_bar(dev, 2, 0x8, PCI_ADDRESS_SPACE_IO, ide_map);
+ pci_register_bar(dev, 3, 0x4, PCI_ADDRESS_SPACE_IO, ide_map);
+ pci_register_bar(dev, 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_bus_new(&d->bus[0], &d->dev.qdev);
+ ide_bus_new(&d->bus[1], &d->dev.qdev);
+ ide_init2(&d->bus[0], NULL, NULL, irq[0]);
+ ide_init2(&d->bus[1], NULL, NULL, irq[1]);
+
+ register_savevm("ide", 0, 3, pci_ide_save, pci_ide_load, d);
+ qemu_register_reset(cmd646_reset, d);
+ cmd646_reset(d);
+ return 0;
+}
+
+void pci_cmd646_ide_init(PCIBus *bus, DriveInfo **hd_table,
+ int secondary_ide_enabled)
+{
+ PCIDevice *dev;
+
+ dev = pci_create(bus, -1, "CMD646 IDE");
+ qdev_prop_set_uint32(&dev->qdev, "secondary", secondary_ide_enabled);
+ qdev_init_nofail(&dev->qdev);
+
+ pci_ide_create_devs(dev, hd_table);
+}
+
+static PCIDeviceInfo cmd646_ide_info[] = {
+ {
+ .qdev.name = "CMD646 IDE",
+ .qdev.size = sizeof(PCIIDEState),
+ .init = pci_cmd646_ide_initfn,
+ .qdev.props = (Property[]) {
+ DEFINE_PROP_UINT32("secondary", PCIIDEState, secondary, 0),
+ DEFINE_PROP_END_OF_LIST(),
+ },
+ },{
+ /* end of list */
+ }
+};
+
+static void cmd646_ide_register(void)
+{
+ pci_qdev_register_many(cmd646_ide_info);
+}
+device_init(cmd646_ide_register);
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