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authorPaolo Bonzini <pbonzini@redhat.com>2013-02-05 12:03:15 +0100
committerPaolo Bonzini <pbonzini@redhat.com>2013-03-01 15:01:19 +0100
commit530182169e897c0e401b245552a4c58dc6846912 (patch)
tree8c39251d7e89855a89d925359f71639400782cd6 /hw/openrisc_timer.c
parente4c8b28cde12d01ada8fe869567dc5717a2dfcb7 (diff)
hw: move boards and other isolated files to hw/ARCH
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'hw/openrisc_timer.c')
-rw-r--r--hw/openrisc_timer.c101
1 files changed, 0 insertions, 101 deletions
diff --git a/hw/openrisc_timer.c b/hw/openrisc_timer.c
deleted file mode 100644
index f6c877f425..0000000000
--- a/hw/openrisc_timer.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * QEMU OpenRISC timer support
- *
- * Copyright (c) 2011-2012 Jia Liu <proljc@gmail.com>
- * Zhizhou Zhang <etouzh@gmail.com>
- *
- * 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 "cpu.h"
-#include "hw/hw.h"
-#include "qemu/timer.h"
-
-#define TIMER_FREQ (20 * 1000 * 1000) /* 20MHz */
-
-/* The time when TTCR changes */
-static uint64_t last_clk;
-static int is_counting;
-
-void cpu_openrisc_count_update(OpenRISCCPU *cpu)
-{
- uint64_t now, next;
- uint32_t wait;
-
- now = qemu_get_clock_ns(vm_clock);
- if (!is_counting) {
- qemu_del_timer(cpu->env.timer);
- last_clk = now;
- return;
- }
-
- cpu->env.ttcr += (uint32_t)muldiv64(now - last_clk, TIMER_FREQ,
- get_ticks_per_sec());
- last_clk = now;
-
- if ((cpu->env.ttmr & TTMR_TP) <= (cpu->env.ttcr & TTMR_TP)) {
- wait = TTMR_TP - (cpu->env.ttcr & TTMR_TP) + 1;
- wait += cpu->env.ttmr & TTMR_TP;
- } else {
- wait = (cpu->env.ttmr & TTMR_TP) - (cpu->env.ttcr & TTMR_TP);
- }
-
- next = now + muldiv64(wait, get_ticks_per_sec(), TIMER_FREQ);
- qemu_mod_timer(cpu->env.timer, next);
-}
-
-void cpu_openrisc_count_start(OpenRISCCPU *cpu)
-{
- is_counting = 1;
- cpu_openrisc_count_update(cpu);
-}
-
-void cpu_openrisc_count_stop(OpenRISCCPU *cpu)
-{
- is_counting = 0;
- cpu_openrisc_count_update(cpu);
-}
-
-static void openrisc_timer_cb(void *opaque)
-{
- OpenRISCCPU *cpu = opaque;
-
- if ((cpu->env.ttmr & TTMR_IE) &&
- qemu_timer_expired(cpu->env.timer, qemu_get_clock_ns(vm_clock))) {
- cpu->env.ttmr |= TTMR_IP;
- cpu->env.interrupt_request |= CPU_INTERRUPT_TIMER;
- }
-
- switch (cpu->env.ttmr & TTMR_M) {
- case TIMER_NONE:
- break;
- case TIMER_INTR:
- cpu->env.ttcr = 0;
- cpu_openrisc_count_start(cpu);
- break;
- case TIMER_SHOT:
- cpu_openrisc_count_stop(cpu);
- break;
- case TIMER_CONT:
- cpu_openrisc_count_start(cpu);
- break;
- }
-}
-
-void cpu_openrisc_clock_init(OpenRISCCPU *cpu)
-{
- cpu->env.timer = qemu_new_timer_ns(vm_clock, &openrisc_timer_cb, cpu);
- cpu->env.ttmr = 0x00000000;
- cpu->env.ttcr = 0x00000000;
-}