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1.1 root 1: /*
2: * ide bus support for qdev.
3: *
4: * Copyright (c) 2009 Gerd Hoffmann <[email protected]>
5: *
6: * This library is free software; you can redistribute it and/or
7: * modify it under the terms of the GNU Lesser General Public
8: * License as published by the Free Software Foundation; either
9: * version 2 of the License, or (at your option) any later version.
10: *
11: * This library is distributed in the hope that it will be useful,
12: * but WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * Lesser General Public License for more details.
15: *
16: * You should have received a copy of the GNU Lesser General Public
17: * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18: */
19: #include <hw/hw.h>
20: #include "dma.h"
1.1.1.3 root 21: #include "qemu-error.h"
1.1 root 22: #include <hw/ide/internal.h>
1.1.1.4 ! root 23: #include "blockdev.h"
! 24: #include "sysemu.h"
1.1 root 25:
26: /* --------------------------------- */
27:
1.1.1.4 ! root 28: static char *idebus_get_fw_dev_path(DeviceState *dev);
! 29:
1.1 root 30: static struct BusInfo ide_bus_info = {
31: .name = "IDE",
32: .size = sizeof(IDEBus),
1.1.1.4 ! root 33: .get_fw_dev_path = idebus_get_fw_dev_path,
1.1 root 34: };
35:
1.1.1.4 ! root 36: void ide_bus_new(IDEBus *idebus, DeviceState *dev, int bus_id)
1.1 root 37: {
38: qbus_create_inplace(&idebus->qbus, &ide_bus_info, dev, NULL);
1.1.1.4 ! root 39: idebus->bus_id = bus_id;
! 40: }
! 41:
! 42: static char *idebus_get_fw_dev_path(DeviceState *dev)
! 43: {
! 44: char path[30];
! 45:
! 46: snprintf(path, sizeof(path), "%s@%d", qdev_fw_name(dev),
! 47: ((IDEBus*)dev->parent_bus)->bus_id);
! 48:
! 49: return strdup(path);
1.1 root 50: }
51:
52: static int ide_qdev_init(DeviceState *qdev, DeviceInfo *base)
53: {
54: IDEDevice *dev = DO_UPCAST(IDEDevice, qdev, qdev);
55: IDEDeviceInfo *info = DO_UPCAST(IDEDeviceInfo, qdev, base);
56: IDEBus *bus = DO_UPCAST(IDEBus, qbus, qdev->parent_bus);
57:
1.1.1.3 root 58: if (!dev->conf.bs) {
59: error_report("No drive specified");
1.1 root 60: goto err;
61: }
62: if (dev->unit == -1) {
63: dev->unit = bus->master ? 1 : 0;
64: }
65: switch (dev->unit) {
66: case 0:
67: if (bus->master) {
1.1.1.3 root 68: error_report("IDE unit %d is in use", dev->unit);
1.1 root 69: goto err;
70: }
71: bus->master = dev;
72: break;
73: case 1:
74: if (bus->slave) {
1.1.1.3 root 75: error_report("IDE unit %d is in use", dev->unit);
1.1 root 76: goto err;
77: }
78: bus->slave = dev;
79: break;
80: default:
1.1.1.3 root 81: error_report("Invalid IDE unit %d", dev->unit);
1.1 root 82: goto err;
83: }
84: return info->init(dev);
85:
86: err:
87: return -1;
88: }
89:
90: static void ide_qdev_register(IDEDeviceInfo *info)
91: {
92: info->qdev.init = ide_qdev_init;
93: info->qdev.bus_info = &ide_bus_info;
94: qdev_register(&info->qdev);
95: }
96:
97: IDEDevice *ide_create_drive(IDEBus *bus, int unit, DriveInfo *drive)
98: {
99: DeviceState *dev;
100:
101: dev = qdev_create(&bus->qbus, "ide-drive");
102: qdev_prop_set_uint32(dev, "unit", unit);
1.1.1.3 root 103: qdev_prop_set_drive_nofail(dev, "drive", drive->bdrv);
104: qdev_init_nofail(dev);
1.1 root 105: return DO_UPCAST(IDEDevice, qdev, dev);
106: }
107:
1.1.1.3 root 108: void ide_get_bs(BlockDriverState *bs[], BusState *qbus)
109: {
110: IDEBus *bus = DO_UPCAST(IDEBus, qbus, qbus);
111: bs[0] = bus->master ? bus->master->conf.bs : NULL;
112: bs[1] = bus->slave ? bus->slave->conf.bs : NULL;
113: }
114:
1.1 root 115: /* --------------------------------- */
116:
117: typedef struct IDEDrive {
118: IDEDevice dev;
119: } IDEDrive;
120:
121: static int ide_drive_initfn(IDEDevice *dev)
122: {
123: IDEBus *bus = DO_UPCAST(IDEBus, qbus, dev->qdev.parent_bus);
1.1.1.3 root 124: IDEState *s = bus->ifs + dev->unit;
125: const char *serial;
126: DriveInfo *dinfo;
127:
128: serial = dev->serial;
129: if (!serial) {
130: /* try to fall back to value set with legacy -drive serial=... */
131: dinfo = drive_get_by_blockdev(dev->conf.bs);
132: if (*dinfo->serial) {
133: serial = dinfo->serial;
134: }
135: }
136:
137: if (ide_init_drive(s, dev->conf.bs, dev->version, serial) < 0) {
138: return -1;
139: }
140:
141: if (!dev->version) {
142: dev->version = qemu_strdup(s->version);
143: }
144: if (!dev->serial) {
145: dev->serial = qemu_strdup(s->drive_serial_str);
146: }
1.1.1.4 ! root 147:
! 148: add_boot_device_path(dev->conf.bootindex, &dev->qdev,
! 149: dev->unit ? "/disk@1" : "/disk@0");
! 150:
1.1 root 151: return 0;
152: }
153:
154: static IDEDeviceInfo ide_drive_info = {
155: .qdev.name = "ide-drive",
1.1.1.4 ! root 156: .qdev.fw_name = "drive",
1.1 root 157: .qdev.size = sizeof(IDEDrive),
158: .init = ide_drive_initfn,
159: .qdev.props = (Property[]) {
160: DEFINE_PROP_UINT32("unit", IDEDrive, dev.unit, -1),
1.1.1.3 root 161: DEFINE_BLOCK_PROPERTIES(IDEDrive, dev.conf),
1.1.1.2 root 162: DEFINE_PROP_STRING("ver", IDEDrive, dev.version),
1.1.1.3 root 163: DEFINE_PROP_STRING("serial", IDEDrive, dev.serial),
1.1 root 164: DEFINE_PROP_END_OF_LIST(),
165: }
166: };
167:
168: static void ide_drive_register(void)
169: {
170: ide_qdev_register(&ide_drive_info);
171: }
172: device_init(ide_drive_register);
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