2 * QEMU IDE Emulation: PCI cmd646 support.
4 * Copyright (c) 2003 Fabrice Bellard
5 * Copyright (c) 2006 Openedhand Ltd.
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:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
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
30 #include "block_int.h"
34 #include <hw/ide/pci.h>
38 #define MRDMODE_INTR_CH0 0x04
39 #define MRDMODE_INTR_CH1 0x08
40 #define MRDMODE_BLK_CH0 0x10
41 #define MRDMODE_BLK_CH1 0x20
42 #define UDIDETCR0 0x73
43 #define UDIDETCR1 0x7B
45 static void cmd646_update_irq(PCIIDEState *d);
47 static void ide_map(PCIDevice *pci_dev, int region_num,
48 pcibus_t addr, pcibus_t size, int type)
50 PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, pci_dev);
53 if (region_num <= 3) {
54 bus = &d->bus[(region_num >> 1)];
56 register_ioport_read(addr + 2, 1, 1, ide_status_read, bus);
57 register_ioport_write(addr + 2, 1, 1, ide_cmd_write, bus);
59 register_ioport_write(addr, 8, 1, ide_ioport_write, bus);
60 register_ioport_read(addr, 8, 1, ide_ioport_read, bus);
63 register_ioport_write(addr, 2, 2, ide_data_writew, bus);
64 register_ioport_read(addr, 2, 2, ide_data_readw, bus);
65 register_ioport_write(addr, 4, 4, ide_data_writel, bus);
66 register_ioport_read(addr, 4, 4, ide_data_readl, bus);
71 static uint32_t bmdma_readb_common(PCIIDEState *pci_dev, BMDMAState *bm,
81 val = pci_dev->dev.config[MRDMODE];
87 if (bm == &pci_dev->bmdma[0]) {
88 val = pci_dev->dev.config[UDIDETCR0];
90 val = pci_dev->dev.config[UDIDETCR1];
98 printf("bmdma: readb 0x%02x : 0x%02x\n", addr, val);
103 static uint32_t bmdma_readb_0(void *opaque, uint32_t addr)
105 PCIIDEState *pci_dev = opaque;
106 BMDMAState *bm = &pci_dev->bmdma[0];
108 return bmdma_readb_common(pci_dev, bm, addr);
111 static uint32_t bmdma_readb_1(void *opaque, uint32_t addr)
113 PCIIDEState *pci_dev = opaque;
114 BMDMAState *bm = &pci_dev->bmdma[1];
116 return bmdma_readb_common(pci_dev, bm, addr);
119 static void bmdma_writeb_common(PCIIDEState *pci_dev, BMDMAState *bm,
120 uint32_t addr, uint32_t val)
123 printf("bmdma: writeb 0x%02x : 0x%02x\n", addr, val);
127 bmdma_cmd_writeb(bm, addr, val);
130 pci_dev->dev.config[MRDMODE] =
131 (pci_dev->dev.config[MRDMODE] & ~0x30) | (val & 0x30);
132 cmd646_update_irq(pci_dev);
135 bm->status = (val & 0x60) | (bm->status & 1) | (bm->status & ~val & 0x06);
138 if (bm == &pci_dev->bmdma[0])
139 pci_dev->dev.config[UDIDETCR0] = val;
141 pci_dev->dev.config[UDIDETCR1] = val;
146 static void bmdma_writeb_0(void *opaque, uint32_t addr, uint32_t val)
148 PCIIDEState *pci_dev = opaque;
149 BMDMAState *bm = &pci_dev->bmdma[0];
151 bmdma_writeb_common(pci_dev, bm, addr, val);
154 static void bmdma_writeb_1(void *opaque, uint32_t addr, uint32_t val)
156 PCIIDEState *pci_dev = opaque;
157 BMDMAState *bm = &pci_dev->bmdma[1];
159 bmdma_writeb_common(pci_dev, bm, addr, val);
162 static void bmdma_map(PCIDevice *pci_dev, int region_num,
163 pcibus_t addr, pcibus_t size, int type)
165 PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, pci_dev);
168 for(i = 0;i < 2; i++) {
169 BMDMAState *bm = &d->bmdma[i];
172 register_ioport_write(addr, 4, 1, bmdma_writeb_0, d);
173 register_ioport_read(addr, 4, 1, bmdma_readb_0, d);
175 register_ioport_write(addr, 4, 1, bmdma_writeb_1, d);
176 register_ioport_read(addr, 4, 1, bmdma_readb_1, d);
179 iorange_init(&bm->addr_ioport, &bmdma_addr_ioport_ops, addr + 4, 4);
180 ioport_register(&bm->addr_ioport);
185 /* XXX: call it also when the MRDMODE is changed from the PCI config
187 static void cmd646_update_irq(PCIIDEState *d)
190 pci_level = ((d->dev.config[MRDMODE] & MRDMODE_INTR_CH0) &&
191 !(d->dev.config[MRDMODE] & MRDMODE_BLK_CH0)) ||
192 ((d->dev.config[MRDMODE] & MRDMODE_INTR_CH1) &&
193 !(d->dev.config[MRDMODE] & MRDMODE_BLK_CH1));
194 qemu_set_irq(d->dev.irq[0], pci_level);
197 /* the PCI irq level is the logical OR of the two channels */
198 static void cmd646_set_irq(void *opaque, int channel, int level)
200 PCIIDEState *d = opaque;
203 irq_mask = MRDMODE_INTR_CH0 << channel;
205 d->dev.config[MRDMODE] |= irq_mask;
207 d->dev.config[MRDMODE] &= ~irq_mask;
208 cmd646_update_irq(d);
211 static void cmd646_reset(void *opaque)
213 PCIIDEState *d = opaque;
216 for (i = 0; i < 2; i++) {
217 ide_bus_reset(&d->bus[i]);
221 /* CMD646 PCI IDE controller */
222 static int pci_cmd646_ide_initfn(PCIDevice *dev)
224 PCIIDEState *d = DO_UPCAST(PCIIDEState, dev, dev);
225 uint8_t *pci_conf = d->dev.config;
229 pci_config_set_vendor_id(pci_conf, PCI_VENDOR_ID_CMD);
230 pci_config_set_device_id(pci_conf, PCI_DEVICE_ID_CMD_646);
232 pci_conf[PCI_REVISION_ID] = 0x07; // IDE controller revision
233 pci_conf[PCI_CLASS_PROG] = 0x8f;
235 pci_config_set_class(pci_conf, PCI_CLASS_STORAGE_IDE);
237 pci_conf[0x51] = 0x04; // enable IDE0
239 /* XXX: if not enabled, really disable the seconday IDE controller */
240 pci_conf[0x51] |= 0x08; /* enable IDE1 */
243 pci_register_bar(dev, 0, 0x8, PCI_BASE_ADDRESS_SPACE_IO, ide_map);
244 pci_register_bar(dev, 1, 0x4, PCI_BASE_ADDRESS_SPACE_IO, ide_map);
245 pci_register_bar(dev, 2, 0x8, PCI_BASE_ADDRESS_SPACE_IO, ide_map);
246 pci_register_bar(dev, 3, 0x4, PCI_BASE_ADDRESS_SPACE_IO, ide_map);
247 pci_register_bar(dev, 4, 0x10, PCI_BASE_ADDRESS_SPACE_IO, bmdma_map);
249 /* TODO: RST# value should be 0 */
250 pci_conf[PCI_INTERRUPT_PIN] = 0x01; // interrupt on pin 1
252 irq = qemu_allocate_irqs(cmd646_set_irq, d, 2);
253 for (i = 0; i < 2; i++) {
254 ide_bus_new(&d->bus[i], &d->dev.qdev, i);
255 ide_init2(&d->bus[i], irq[i]);
257 bmdma_init(&d->bus[i], &d->bmdma[i]);
258 d->bmdma[i].bus = &d->bus[i];
259 qemu_add_vm_change_state_handler(d->bus[i].dma->ops->restart_cb,
263 vmstate_register(&dev->qdev, 0, &vmstate_ide_pci, d);
264 qemu_register_reset(cmd646_reset, d);
268 void pci_cmd646_ide_init(PCIBus *bus, DriveInfo **hd_table,
269 int secondary_ide_enabled)
273 dev = pci_create(bus, -1, "cmd646-ide");
274 qdev_prop_set_uint32(&dev->qdev, "secondary", secondary_ide_enabled);
275 qdev_init_nofail(&dev->qdev);
277 pci_ide_create_devs(dev, hd_table);
280 static PCIDeviceInfo cmd646_ide_info[] = {
282 .qdev.name = "cmd646-ide",
283 .qdev.size = sizeof(PCIIDEState),
284 .init = pci_cmd646_ide_initfn,
285 .qdev.props = (Property[]) {
286 DEFINE_PROP_UINT32("secondary", PCIIDEState, secondary, 0),
287 DEFINE_PROP_END_OF_LIST(),
294 static void cmd646_ide_register(void)
296 pci_qdev_register_many(cmd646_ide_info);
298 device_init(cmd646_ide_register);