diff options
Diffstat (limited to 'qemu/hw/core/irq.c')
| -rw-r--r-- | qemu/hw/core/irq.c | 159 |
1 files changed, 0 insertions, 159 deletions
diff --git a/qemu/hw/core/irq.c b/qemu/hw/core/irq.c deleted file mode 100644 index 49ff2e64f..000000000 --- a/qemu/hw/core/irq.c +++ /dev/null @@ -1,159 +0,0 @@ -/* - * QEMU IRQ/GPIO common code. - * - * Copyright (c) 2007 CodeSourcery. - * - * 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 "qemu/osdep.h" -#include "qemu-common.h" -#include "hw/irq.h" -#include "qom/object.h" - -#define IRQ(obj) OBJECT_CHECK(struct IRQState, (obj), TYPE_IRQ) - -struct IRQState { - Object parent_obj; - - qemu_irq_handler handler; - void *opaque; - int n; -}; - -void qemu_set_irq(qemu_irq irq, int level) -{ - if (!irq) - return; - - irq->handler(irq->opaque, irq->n, level); -} - -qemu_irq *qemu_extend_irqs(qemu_irq *old, int n_old, qemu_irq_handler handler, - void *opaque, int n) -{ - qemu_irq *s; - int i; - - if (!old) { - n_old = 0; - } - s = old ? g_renew(qemu_irq, old, n + n_old) : g_new(qemu_irq, n); - for (i = n_old; i < n + n_old; i++) { - s[i] = qemu_allocate_irq(handler, opaque, i); - } - return s; -} - -qemu_irq *qemu_allocate_irqs(qemu_irq_handler handler, void *opaque, int n) -{ - return qemu_extend_irqs(NULL, 0, handler, opaque, n); -} - -qemu_irq qemu_allocate_irq(qemu_irq_handler handler, void *opaque, int n) -{ - struct IRQState *irq; - - irq = IRQ(object_new(TYPE_IRQ)); - irq->handler = handler; - irq->opaque = opaque; - irq->n = n; - - return irq; -} - -void qemu_free_irqs(qemu_irq *s, int n) -{ - int i; - for (i = 0; i < n; i++) { - qemu_free_irq(s[i]); - } - g_free(s); -} - -void qemu_free_irq(qemu_irq irq) -{ - object_unref(OBJECT(irq)); -} - -static void qemu_notirq(void *opaque, int line, int level) -{ - struct IRQState *irq = opaque; - - irq->handler(irq->opaque, irq->n, !level); -} - -qemu_irq qemu_irq_invert(qemu_irq irq) -{ - /* The default state for IRQs is low, so raise the output now. */ - qemu_irq_raise(irq); - return qemu_allocate_irq(qemu_notirq, irq, 0); -} - -static void qemu_splitirq(void *opaque, int line, int level) -{ - struct IRQState **irq = opaque; - irq[0]->handler(irq[0]->opaque, irq[0]->n, level); - irq[1]->handler(irq[1]->opaque, irq[1]->n, level); -} - -qemu_irq qemu_irq_split(qemu_irq irq1, qemu_irq irq2) -{ - qemu_irq *s = g_malloc0(2 * sizeof(qemu_irq)); - s[0] = irq1; - s[1] = irq2; - return qemu_allocate_irq(qemu_splitirq, s, 0); -} - -static void proxy_irq_handler(void *opaque, int n, int level) -{ - qemu_irq **target = opaque; - - if (*target) { - qemu_set_irq((*target)[n], level); - } -} - -qemu_irq *qemu_irq_proxy(qemu_irq **target, int n) -{ - return qemu_allocate_irqs(proxy_irq_handler, target, n); -} - -void qemu_irq_intercept_in(qemu_irq *gpio_in, qemu_irq_handler handler, int n) -{ - int i; - qemu_irq *old_irqs = qemu_allocate_irqs(NULL, NULL, n); - for (i = 0; i < n; i++) { - *old_irqs[i] = *gpio_in[i]; - gpio_in[i]->handler = handler; - gpio_in[i]->opaque = &old_irqs[i]; - } -} - -static const TypeInfo irq_type_info = { - .name = TYPE_IRQ, - .parent = TYPE_OBJECT, - .instance_size = sizeof(struct IRQState), -}; - -static void irq_register_types(void) -{ - type_register_static(&irq_type_info); -} - -type_init(irq_register_types) |