diff options
Diffstat (limited to 'qemu/hw/core/sysbus.c')
| -rw-r--r-- | qemu/hw/core/sysbus.c | 370 |
1 files changed, 0 insertions, 370 deletions
diff --git a/qemu/hw/core/sysbus.c b/qemu/hw/core/sysbus.c deleted file mode 100644 index a7dbe2b32..000000000 --- a/qemu/hw/core/sysbus.c +++ /dev/null @@ -1,370 +0,0 @@ -/* - * System (CPU) Bus device support code - * - * Copyright (c) 2009 CodeSourcery - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, see <http://www.gnu.org/licenses/>. - */ - -#include "qemu/osdep.h" -#include "hw/sysbus.h" -#include "monitor/monitor.h" -#include "exec/address-spaces.h" - -static void sysbus_dev_print(Monitor *mon, DeviceState *dev, int indent); -static char *sysbus_get_fw_dev_path(DeviceState *dev); - -typedef struct SysBusFind { - void *opaque; - FindSysbusDeviceFunc *func; -} SysBusFind; - -/* Run func() for every sysbus device, traverse the tree for everything else */ -static int find_sysbus_device(Object *obj, void *opaque) -{ - SysBusFind *find = opaque; - Object *dev; - SysBusDevice *sbdev; - - dev = object_dynamic_cast(obj, TYPE_SYS_BUS_DEVICE); - sbdev = (SysBusDevice *)dev; - - if (!sbdev) { - /* Container, traverse it for children */ - return object_child_foreach(obj, find_sysbus_device, opaque); - } - - find->func(sbdev, find->opaque); - - return 0; -} - -/* - * Loop through all dynamically created sysbus devices and call - * func() for each instance. - */ -void foreach_dynamic_sysbus_device(FindSysbusDeviceFunc *func, void *opaque) -{ - Object *container; - SysBusFind find = { - .func = func, - .opaque = opaque, - }; - - /* Loop through all sysbus devices that were spawened outside the machine */ - container = container_get(qdev_get_machine(), "/peripheral"); - find_sysbus_device(container, &find); - container = container_get(qdev_get_machine(), "/peripheral-anon"); - find_sysbus_device(container, &find); -} - - -static void system_bus_class_init(ObjectClass *klass, void *data) -{ - BusClass *k = BUS_CLASS(klass); - - k->print_dev = sysbus_dev_print; - k->get_fw_dev_path = sysbus_get_fw_dev_path; -} - -static const TypeInfo system_bus_info = { - .name = TYPE_SYSTEM_BUS, - .parent = TYPE_BUS, - .instance_size = sizeof(BusState), - .class_init = system_bus_class_init, -}; - -/* Check whether an IRQ source exists */ -bool sysbus_has_irq(SysBusDevice *dev, int n) -{ - char *prop = g_strdup_printf("%s[%d]", SYSBUS_DEVICE_GPIO_IRQ, n); - ObjectProperty *r; - - r = object_property_find(OBJECT(dev), prop, NULL); - g_free(prop); - - return (r != NULL); -} - -bool sysbus_is_irq_connected(SysBusDevice *dev, int n) -{ - return !!sysbus_get_connected_irq(dev, n); -} - -qemu_irq sysbus_get_connected_irq(SysBusDevice *dev, int n) -{ - DeviceState *d = DEVICE(dev); - return qdev_get_gpio_out_connector(d, SYSBUS_DEVICE_GPIO_IRQ, n); -} - -void sysbus_connect_irq(SysBusDevice *dev, int n, qemu_irq irq) -{ - SysBusDeviceClass *sbd = SYS_BUS_DEVICE_GET_CLASS(dev); - - qdev_connect_gpio_out_named(DEVICE(dev), SYSBUS_DEVICE_GPIO_IRQ, n, irq); - - if (sbd->connect_irq_notifier) { - sbd->connect_irq_notifier(dev, irq); - } -} - -/* Check whether an MMIO region exists */ -bool sysbus_has_mmio(SysBusDevice *dev, unsigned int n) -{ - return (n < dev->num_mmio); -} - -static void sysbus_mmio_map_common(SysBusDevice *dev, int n, hwaddr addr, - bool may_overlap, int priority) -{ - assert(n >= 0 && n < dev->num_mmio); - - if (dev->mmio[n].addr == addr) { - /* ??? region already mapped here. */ - return; - } - if (dev->mmio[n].addr != (hwaddr)-1) { - /* Unregister previous mapping. */ - memory_region_del_subregion(get_system_memory(), dev->mmio[n].memory); - } - dev->mmio[n].addr = addr; - if (may_overlap) { - memory_region_add_subregion_overlap(get_system_memory(), - addr, - dev->mmio[n].memory, - priority); - } - else { - memory_region_add_subregion(get_system_memory(), - addr, - dev->mmio[n].memory); - } -} - -void sysbus_mmio_map(SysBusDevice *dev, int n, hwaddr addr) -{ - sysbus_mmio_map_common(dev, n, addr, false, 0); -} - -void sysbus_mmio_map_overlap(SysBusDevice *dev, int n, hwaddr addr, - int priority) -{ - sysbus_mmio_map_common(dev, n, addr, true, priority); -} - -/* Request an IRQ source. The actual IRQ object may be populated later. */ -void sysbus_init_irq(SysBusDevice *dev, qemu_irq *p) -{ - qdev_init_gpio_out_named(DEVICE(dev), p, SYSBUS_DEVICE_GPIO_IRQ, 1); -} - -/* Pass IRQs from a target device. */ -void sysbus_pass_irq(SysBusDevice *dev, SysBusDevice *target) -{ - qdev_pass_gpios(DEVICE(target), DEVICE(dev), SYSBUS_DEVICE_GPIO_IRQ); -} - -void sysbus_init_mmio(SysBusDevice *dev, MemoryRegion *memory) -{ - int n; - - assert(dev->num_mmio < QDEV_MAX_MMIO); - n = dev->num_mmio++; - dev->mmio[n].addr = -1; - dev->mmio[n].memory = memory; -} - -MemoryRegion *sysbus_mmio_get_region(SysBusDevice *dev, int n) -{ - return dev->mmio[n].memory; -} - -void sysbus_init_ioports(SysBusDevice *dev, pio_addr_t ioport, pio_addr_t size) -{ - pio_addr_t i; - - for (i = 0; i < size; i++) { - assert(dev->num_pio < QDEV_MAX_PIO); - dev->pio[dev->num_pio++] = ioport++; - } -} - -static int sysbus_device_init(DeviceState *dev) -{ - SysBusDevice *sd = SYS_BUS_DEVICE(dev); - SysBusDeviceClass *sbc = SYS_BUS_DEVICE_GET_CLASS(sd); - - if (!sbc->init) { - return 0; - } - return sbc->init(sd); -} - -DeviceState *sysbus_create_varargs(const char *name, - hwaddr addr, ...) -{ - DeviceState *dev; - SysBusDevice *s; - va_list va; - qemu_irq irq; - int n; - - dev = qdev_create(NULL, name); - s = SYS_BUS_DEVICE(dev); - qdev_init_nofail(dev); - if (addr != (hwaddr)-1) { - sysbus_mmio_map(s, 0, addr); - } - va_start(va, addr); - n = 0; - while (1) { - irq = va_arg(va, qemu_irq); - if (!irq) { - break; - } - sysbus_connect_irq(s, n, irq); - n++; - } - va_end(va); - return dev; -} - -DeviceState *sysbus_try_create_varargs(const char *name, - hwaddr addr, ...) -{ - DeviceState *dev; - SysBusDevice *s; - va_list va; - qemu_irq irq; - int n; - - dev = qdev_try_create(NULL, name); - if (!dev) { - return NULL; - } - s = SYS_BUS_DEVICE(dev); - qdev_init_nofail(dev); - if (addr != (hwaddr)-1) { - sysbus_mmio_map(s, 0, addr); - } - va_start(va, addr); - n = 0; - while (1) { - irq = va_arg(va, qemu_irq); - if (!irq) { - break; - } - sysbus_connect_irq(s, n, irq); - n++; - } - va_end(va); - return dev; -} - -static void sysbus_dev_print(Monitor *mon, DeviceState *dev, int indent) -{ - SysBusDevice *s = SYS_BUS_DEVICE(dev); - hwaddr size; - int i; - - for (i = 0; i < s->num_mmio; i++) { - size = memory_region_size(s->mmio[i].memory); - monitor_printf(mon, "%*smmio " TARGET_FMT_plx "/" TARGET_FMT_plx "\n", - indent, "", s->mmio[i].addr, size); - } -} - -static char *sysbus_get_fw_dev_path(DeviceState *dev) -{ - SysBusDevice *s = SYS_BUS_DEVICE(dev); - SysBusDeviceClass *sbc = SYS_BUS_DEVICE_GET_CLASS(s); - /* for the explicit unit address fallback case: */ - char *addr, *fw_dev_path; - - if (s->num_mmio) { - return g_strdup_printf("%s@" TARGET_FMT_plx, qdev_fw_name(dev), - s->mmio[0].addr); - } - if (s->num_pio) { - return g_strdup_printf("%s@i%04x", qdev_fw_name(dev), s->pio[0]); - } - if (sbc->explicit_ofw_unit_address) { - addr = sbc->explicit_ofw_unit_address(s); - if (addr) { - fw_dev_path = g_strdup_printf("%s@%s", qdev_fw_name(dev), addr); - g_free(addr); - return fw_dev_path; - } - } - return g_strdup(qdev_fw_name(dev)); -} - -void sysbus_add_io(SysBusDevice *dev, hwaddr addr, - MemoryRegion *mem) -{ - memory_region_add_subregion(get_system_io(), addr, mem); -} - -MemoryRegion *sysbus_address_space(SysBusDevice *dev) -{ - return get_system_memory(); -} - -static void sysbus_device_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *k = DEVICE_CLASS(klass); - k->init = sysbus_device_init; - k->bus_type = TYPE_SYSTEM_BUS; -} - -static const TypeInfo sysbus_device_type_info = { - .name = TYPE_SYS_BUS_DEVICE, - .parent = TYPE_DEVICE, - .instance_size = sizeof(SysBusDevice), - .abstract = true, - .class_size = sizeof(SysBusDeviceClass), - .class_init = sysbus_device_class_init, -}; - -/* This is a nasty hack to allow passing a NULL bus to qdev_create. */ -static BusState *main_system_bus; - -static void main_system_bus_create(void) -{ - /* assign main_system_bus before qbus_create_inplace() - * in order to make "if (bus != sysbus_get_default())" work */ - main_system_bus = g_malloc0(system_bus_info.instance_size); - qbus_create_inplace(main_system_bus, system_bus_info.instance_size, - TYPE_SYSTEM_BUS, NULL, "main-system-bus"); - OBJECT(main_system_bus)->free = g_free; - object_property_add_child(container_get(qdev_get_machine(), - "/unattached"), - "sysbus", OBJECT(main_system_bus), NULL); -} - -BusState *sysbus_get_default(void) -{ - if (!main_system_bus) { - main_system_bus_create(); - } - return main_system_bus; -} - -static void sysbus_register_types(void) -{ - type_register_static(&system_bus_info); - type_register_static(&sysbus_device_type_info); -} - -type_init(sysbus_register_types) |