diff options
author | Yang Zhang <yang.z.zhang@intel.com> | 2015-08-28 09:58:54 +0800 |
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committer | Yang Zhang <yang.z.zhang@intel.com> | 2015-09-01 12:44:00 +0800 |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/include/hw/timer/i8254_internal.h | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/include/hw/timer/i8254_internal.h')
-rw-r--r-- | qemu/include/hw/timer/i8254_internal.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/qemu/include/hw/timer/i8254_internal.h b/qemu/include/hw/timer/i8254_internal.h new file mode 100644 index 000000000..61a1bfbc4 --- /dev/null +++ b/qemu/include/hw/timer/i8254_internal.h @@ -0,0 +1,84 @@ +/* + * QEMU 8253/8254 - internal interfaces + * + * Copyright (c) 2011 Jan Kiszka, Siemens AG + * + * 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. + */ + +#ifndef QEMU_I8254_INTERNAL_H +#define QEMU_I8254_INTERNAL_H + +#include "hw/hw.h" +#include "hw/i386/pc.h" +#include "hw/isa/isa.h" + +typedef struct PITChannelState { + int count; /* can be 65536 */ + uint16_t latched_count; + uint8_t count_latched; + uint8_t status_latched; + uint8_t status; + uint8_t read_state; + uint8_t write_state; + uint8_t write_latch; + uint8_t rw_mode; + uint8_t mode; + uint8_t bcd; /* not supported */ + uint8_t gate; /* timer start */ + int64_t count_load_time; + /* irq handling */ + int64_t next_transition_time; + QEMUTimer *irq_timer; + qemu_irq irq; + uint32_t irq_disabled; +} PITChannelState; + +typedef struct PITCommonState { + ISADevice dev; + MemoryRegion ioports; + uint32_t iobase; + PITChannelState channels[3]; +} PITCommonState; + +#define TYPE_PIT_COMMON "pit-common" +#define PIT_COMMON(obj) \ + OBJECT_CHECK(PITCommonState, (obj), TYPE_PIT_COMMON) +#define PIT_COMMON_CLASS(klass) \ + OBJECT_CLASS_CHECK(PITCommonClass, (klass), TYPE_PIT_COMMON) +#define PIT_COMMON_GET_CLASS(obj) \ + OBJECT_GET_CLASS(PITCommonClass, (obj), TYPE_PIT_COMMON) + +typedef struct PITCommonClass { + ISADeviceClass parent_class; + + void (*set_channel_gate)(PITCommonState *s, PITChannelState *sc, int val); + void (*get_channel_info)(PITCommonState *s, PITChannelState *sc, + PITChannelInfo *info); + void (*pre_save)(PITCommonState *s); + void (*post_load)(PITCommonState *s); +} PITCommonClass; + +int pit_get_out(PITChannelState *s, int64_t current_time); +int64_t pit_get_next_transition_time(PITChannelState *s, int64_t current_time); +void pit_get_channel_info_common(PITCommonState *s, PITChannelState *sc, + PITChannelInfo *info); +void pit_reset_common(PITCommonState *s); + +#endif /* !QEMU_I8254_INTERNAL_H */ |