Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 1 | /* |
| 2 | * QEMU IDE Emulation: mmio support (for embedded). |
| 3 | * |
| 4 | * Copyright (c) 2003 Fabrice Bellard |
| 5 | * Copyright (c) 2006 Openedhand Ltd. |
| 6 | * |
| 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: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice shall be included in |
| 15 | * all copies or substantial portions of the Software. |
| 16 | * |
| 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 |
| 23 | * THE SOFTWARE. |
| 24 | */ |
Markus Armbruster | 0b8fa32 | 2019-05-23 16:35:07 +0200 | [diff] [blame] | 25 | |
Peter Maydell | 5323926 | 2016-01-26 18:17:09 +0000 | [diff] [blame] | 26 | #include "qemu/osdep.h" |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 27 | #include "hw/sysbus.h" |
Markus Armbruster | d645427 | 2019-08-12 07:23:45 +0200 | [diff] [blame] | 28 | #include "migration/vmstate.h" |
Markus Armbruster | 0b8fa32 | 2019-05-23 16:35:07 +0200 | [diff] [blame] | 29 | #include "qemu/module.h" |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame] | 30 | #include "sysemu/dma.h" |
Gerd Hoffmann | 59f2a78 | 2009-08-20 15:22:26 +0200 | [diff] [blame] | 31 | |
Markus Armbruster | a9c9427 | 2016-06-22 19:11:19 +0200 | [diff] [blame] | 32 | #include "hw/ide/internal.h" |
Markus Armbruster | a27bd6c | 2019-08-12 07:23:51 +0200 | [diff] [blame] | 33 | #include "hw/qdev-properties.h" |
Eduardo Habkost | db1015e | 2020-09-03 16:43:22 -0400 | [diff] [blame] | 34 | #include "qom/object.h" |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 35 | |
| 36 | /***********************************************************/ |
| 37 | /* MMIO based ide port |
| 38 | * This emulates IDE device connected directly to the CPU bus without |
| 39 | * dedicated ide controller, which is often seen on embedded boards. |
| 40 | */ |
| 41 | |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 42 | #define TYPE_MMIO_IDE "mmio-ide" |
Eduardo Habkost | db1015e | 2020-09-03 16:43:22 -0400 | [diff] [blame] | 43 | typedef struct MMIOIDEState MMIOState; |
Eduardo Habkost | 8110fa1 | 2020-08-31 17:07:33 -0400 | [diff] [blame] | 44 | DECLARE_INSTANCE_CHECKER(MMIOState, MMIO_IDE, |
| 45 | TYPE_MMIO_IDE) |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 46 | |
Eduardo Habkost | db1015e | 2020-09-03 16:43:22 -0400 | [diff] [blame] | 47 | struct MMIOIDEState { |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 48 | /*< private >*/ |
| 49 | SysBusDevice parent_obj; |
| 50 | /*< public >*/ |
| 51 | |
Juan Quintela | 0ce51e9 | 2009-10-07 18:55:36 +0200 | [diff] [blame] | 52 | IDEBus bus; |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 53 | |
| 54 | uint32_t shift; |
| 55 | qemu_irq irq; |
Avi Kivity | 9d7f1b9 | 2011-11-09 16:10:07 +0200 | [diff] [blame] | 56 | MemoryRegion iomem1, iomem2; |
Eduardo Habkost | db1015e | 2020-09-03 16:43:22 -0400 | [diff] [blame] | 57 | }; |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 58 | |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 59 | static void mmio_ide_reset(DeviceState *dev) |
Blue Swirl | 4a64356 | 2009-11-07 14:13:05 +0000 | [diff] [blame] | 60 | { |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 61 | MMIOState *s = MMIO_IDE(dev); |
Blue Swirl | 4a64356 | 2009-11-07 14:13:05 +0000 | [diff] [blame] | 62 | |
| 63 | ide_bus_reset(&s->bus); |
| 64 | } |
| 65 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 66 | static uint64_t mmio_ide_read(void *opaque, hwaddr addr, |
Avi Kivity | 9d7f1b9 | 2011-11-09 16:10:07 +0200 | [diff] [blame] | 67 | unsigned size) |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 68 | { |
Juan Quintela | 18c0fb3 | 2009-10-07 16:56:21 +0200 | [diff] [blame] | 69 | MMIOState *s = opaque; |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 70 | addr >>= s->shift; |
| 71 | if (addr & 7) |
Juan Quintela | 0ce51e9 | 2009-10-07 18:55:36 +0200 | [diff] [blame] | 72 | return ide_ioport_read(&s->bus, addr); |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 73 | else |
Juan Quintela | 0ce51e9 | 2009-10-07 18:55:36 +0200 | [diff] [blame] | 74 | return ide_data_readw(&s->bus, 0); |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 75 | } |
| 76 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 77 | static void mmio_ide_write(void *opaque, hwaddr addr, |
Avi Kivity | 9d7f1b9 | 2011-11-09 16:10:07 +0200 | [diff] [blame] | 78 | uint64_t val, unsigned size) |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 79 | { |
Juan Quintela | 18c0fb3 | 2009-10-07 16:56:21 +0200 | [diff] [blame] | 80 | MMIOState *s = opaque; |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 81 | addr >>= s->shift; |
| 82 | if (addr & 7) |
Juan Quintela | 0ce51e9 | 2009-10-07 18:55:36 +0200 | [diff] [blame] | 83 | ide_ioport_write(&s->bus, addr, val); |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 84 | else |
Juan Quintela | 0ce51e9 | 2009-10-07 18:55:36 +0200 | [diff] [blame] | 85 | ide_data_writew(&s->bus, 0, val); |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 86 | } |
| 87 | |
Avi Kivity | 9d7f1b9 | 2011-11-09 16:10:07 +0200 | [diff] [blame] | 88 | static const MemoryRegionOps mmio_ide_ops = { |
| 89 | .read = mmio_ide_read, |
| 90 | .write = mmio_ide_write, |
Valentin Manea | 1a7044b | 2014-08-31 11:32:08 +0300 | [diff] [blame] | 91 | .endianness = DEVICE_LITTLE_ENDIAN, |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 92 | }; |
| 93 | |
Avi Kivity | a8170e5 | 2012-10-23 12:30:10 +0200 | [diff] [blame] | 94 | static uint64_t mmio_ide_status_read(void *opaque, hwaddr addr, |
Avi Kivity | 9d7f1b9 | 2011-11-09 16:10:07 +0200 | [diff] [blame] | 95 | unsigned size) |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 96 | { |
Juan Quintela | 18c0fb3 | 2009-10-07 16:56:21 +0200 | [diff] [blame] | 97 | MMIOState *s= opaque; |
Juan Quintela | 0ce51e9 | 2009-10-07 18:55:36 +0200 | [diff] [blame] | 98 | return ide_status_read(&s->bus, 0); |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 99 | } |
| 100 | |
John Snow | 98d9891 | 2020-07-24 01:22:54 -0400 | [diff] [blame] | 101 | static void mmio_ide_ctrl_write(void *opaque, hwaddr addr, |
| 102 | uint64_t val, unsigned size) |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 103 | { |
Juan Quintela | 18c0fb3 | 2009-10-07 16:56:21 +0200 | [diff] [blame] | 104 | MMIOState *s = opaque; |
John Snow | 98d9891 | 2020-07-24 01:22:54 -0400 | [diff] [blame] | 105 | ide_ctrl_write(&s->bus, 0, val); |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 106 | } |
| 107 | |
Avi Kivity | 9d7f1b9 | 2011-11-09 16:10:07 +0200 | [diff] [blame] | 108 | static const MemoryRegionOps mmio_ide_cs_ops = { |
| 109 | .read = mmio_ide_status_read, |
John Snow | 98d9891 | 2020-07-24 01:22:54 -0400 | [diff] [blame] | 110 | .write = mmio_ide_ctrl_write, |
Valentin Manea | 1a7044b | 2014-08-31 11:32:08 +0300 | [diff] [blame] | 111 | .endianness = DEVICE_LITTLE_ENDIAN, |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 112 | }; |
| 113 | |
Juan Quintela | 24daf35 | 2009-10-07 18:58:25 +0200 | [diff] [blame] | 114 | static const VMStateDescription vmstate_ide_mmio = { |
| 115 | .name = "mmio-ide", |
| 116 | .version_id = 3, |
| 117 | .minimum_version_id = 0, |
Juan Quintela | 35d0845 | 2014-04-16 16:01:33 +0200 | [diff] [blame] | 118 | .fields = (VMStateField[]) { |
Juan Quintela | 24daf35 | 2009-10-07 18:58:25 +0200 | [diff] [blame] | 119 | VMSTATE_IDE_BUS(bus, MMIOState), |
| 120 | VMSTATE_IDE_DRIVES(bus.ifs, MMIOState), |
| 121 | VMSTATE_END_OF_LIST() |
| 122 | } |
| 123 | }; |
Gerd Hoffmann | 2bcbf7e | 2009-08-20 15:22:25 +0200 | [diff] [blame] | 124 | |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 125 | static void mmio_ide_realizefn(DeviceState *dev, Error **errp) |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 126 | { |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 127 | SysBusDevice *d = SYS_BUS_DEVICE(dev); |
| 128 | MMIOState *s = MMIO_IDE(dev); |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 129 | |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 130 | ide_init2(&s->bus, s->irq); |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 131 | |
Paolo Bonzini | 1437c94 | 2013-06-06 21:25:08 -0400 | [diff] [blame] | 132 | memory_region_init_io(&s->iomem1, OBJECT(s), &mmio_ide_ops, s, |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 133 | "ide-mmio.1", 16 << s->shift); |
Paolo Bonzini | 1437c94 | 2013-06-06 21:25:08 -0400 | [diff] [blame] | 134 | memory_region_init_io(&s->iomem2, OBJECT(s), &mmio_ide_cs_ops, s, |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 135 | "ide-mmio.2", 2 << s->shift); |
| 136 | sysbus_init_mmio(d, &s->iomem1); |
| 137 | sysbus_init_mmio(d, &s->iomem2); |
Gerd Hoffmann | 3d2bf4a | 2009-08-20 15:22:22 +0200 | [diff] [blame] | 138 | } |
| 139 | |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 140 | static void mmio_ide_initfn(Object *obj) |
| 141 | { |
| 142 | SysBusDevice *d = SYS_BUS_DEVICE(obj); |
| 143 | MMIOState *s = MMIO_IDE(obj); |
| 144 | |
Andreas Färber | c6baf94 | 2013-08-23 20:18:50 +0200 | [diff] [blame] | 145 | ide_bus_new(&s->bus, sizeof(s->bus), DEVICE(obj), 0, 2); |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 146 | sysbus_init_irq(d, &s->irq); |
| 147 | } |
| 148 | |
| 149 | static Property mmio_ide_properties[] = { |
| 150 | DEFINE_PROP_UINT32("shift", MMIOState, shift, 0), |
| 151 | DEFINE_PROP_END_OF_LIST() |
| 152 | }; |
| 153 | |
| 154 | static void mmio_ide_class_init(ObjectClass *oc, void *data) |
| 155 | { |
| 156 | DeviceClass *dc = DEVICE_CLASS(oc); |
| 157 | |
| 158 | dc->realize = mmio_ide_realizefn; |
| 159 | dc->reset = mmio_ide_reset; |
Marc-André Lureau | 4f67d30 | 2020-01-10 19:30:32 +0400 | [diff] [blame] | 160 | device_class_set_props(dc, mmio_ide_properties); |
Andreas Färber | 6b2578d | 2013-02-01 00:13:41 +0100 | [diff] [blame] | 161 | dc->vmsd = &vmstate_ide_mmio; |
| 162 | } |
| 163 | |
| 164 | static const TypeInfo mmio_ide_type_info = { |
| 165 | .name = TYPE_MMIO_IDE, |
| 166 | .parent = TYPE_SYS_BUS_DEVICE, |
| 167 | .instance_size = sizeof(MMIOState), |
| 168 | .instance_init = mmio_ide_initfn, |
| 169 | .class_init = mmio_ide_class_init, |
| 170 | }; |
| 171 | |
| 172 | static void mmio_ide_register_types(void) |
| 173 | { |
| 174 | type_register_static(&mmio_ide_type_info); |
| 175 | } |
| 176 | |
| 177 | void mmio_ide_init_drives(DeviceState *dev, DriveInfo *hd0, DriveInfo *hd1) |
| 178 | { |
| 179 | MMIOState *s = MMIO_IDE(dev); |
| 180 | |
| 181 | if (hd0 != NULL) { |
| 182 | ide_create_drive(&s->bus, 0, hd0); |
| 183 | } |
| 184 | if (hd1 != NULL) { |
| 185 | ide_create_drive(&s->bus, 1, hd1); |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | type_init(mmio_ide_register_types) |