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/*
* SiFive PWM
*
* Copyright (c) 2020 Western Digital
*
* Author: Alistair Francis <alistair.francis@wdc.com>
*
* 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 HW_SIFIVE_PWM_H
#define HW_SIFIVE_PWM_H
#include "hw/sysbus.h"
#include "qemu/timer.h"
#include "qom/object.h"
#define TYPE_SIFIVE_PWM "sifive-pwm"
#define SIFIVE_PWM(obj) \
OBJECT_CHECK(SiFivePwmState, (obj), TYPE_SIFIVE_PWM)
#define SIFIVE_PWM_CHANS 4
#define SIFIVE_PWM_IRQS SIFIVE_PWM_CHANS
typedef struct SiFivePwmState {
/* <private> */
SysBusDevice parent_obj;
/* <public> */
MemoryRegion mmio;
QEMUTimer timer[SIFIVE_PWM_CHANS];
/*
* if en bit(s) set, is the number of ticks when pwmcount was 0
* if en bit(s) not set, is the number of ticks in pwmcount
*/
uint64_t tick_offset;
uint64_t freq_hz;
uint32_t pwmcfg;
uint32_t pwmcmp[SIFIVE_PWM_CHANS];
qemu_irq irqs[SIFIVE_PWM_IRQS];
} SiFivePwmState;
#endif /* HW_SIFIVE_PWM_H */
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