diff options
author | 2017-04-25 03:31:15 -0700 | |
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committer | 2017-05-22 06:48:08 +0000 | |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/hw/timer/exynos4210_rtc.c | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/hw/timer/exynos4210_rtc.c')
-rw-r--r-- | qemu/hw/timer/exynos4210_rtc.c | 595 |
1 files changed, 0 insertions, 595 deletions
diff --git a/qemu/hw/timer/exynos4210_rtc.c b/qemu/hw/timer/exynos4210_rtc.c deleted file mode 100644 index da4dd451b..000000000 --- a/qemu/hw/timer/exynos4210_rtc.c +++ /dev/null @@ -1,595 +0,0 @@ -/* - * Samsung exynos4210 Real Time Clock - * - * Copyright (c) 2012 Samsung Electronics Co., Ltd. - * Ogurtsov Oleg <o.ogurtsov@samsung.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program 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 General Public License - * for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, see <http://www.gnu.org/licenses/>. - * - */ - -/* Description: - * Register RTCCON: - * CLKSEL Bit[1] not used - * CLKOUTEN Bit[9] not used - */ - -#include "qemu/osdep.h" -#include "hw/sysbus.h" -#include "qemu/timer.h" -#include "qemu-common.h" -#include "qemu/bcd.h" -#include "hw/ptimer.h" - -#include "hw/hw.h" -#include "sysemu/sysemu.h" - -#include "hw/arm/exynos4210.h" - -#define DEBUG_RTC 0 - -#if DEBUG_RTC -#define DPRINTF(fmt, ...) \ - do { fprintf(stdout, "RTC: [%24s:%5d] " fmt, __func__, __LINE__, \ - ## __VA_ARGS__); } while (0) -#else -#define DPRINTF(fmt, ...) do {} while (0) -#endif - -#define EXYNOS4210_RTC_REG_MEM_SIZE 0x0100 - -#define INTP 0x0030 -#define RTCCON 0x0040 -#define TICCNT 0x0044 -#define RTCALM 0x0050 -#define ALMSEC 0x0054 -#define ALMMIN 0x0058 -#define ALMHOUR 0x005C -#define ALMDAY 0x0060 -#define ALMMON 0x0064 -#define ALMYEAR 0x0068 -#define BCDSEC 0x0070 -#define BCDMIN 0x0074 -#define BCDHOUR 0x0078 -#define BCDDAY 0x007C -#define BCDDAYWEEK 0x0080 -#define BCDMON 0x0084 -#define BCDYEAR 0x0088 -#define CURTICNT 0x0090 - -#define TICK_TIMER_ENABLE 0x0100 -#define TICNT_THRESHOLD 2 - - -#define RTC_ENABLE 0x0001 - -#define INTP_TICK_ENABLE 0x0001 -#define INTP_ALM_ENABLE 0x0002 - -#define ALARM_INT_ENABLE 0x0040 - -#define RTC_BASE_FREQ 32768 - -#define TYPE_EXYNOS4210_RTC "exynos4210.rtc" -#define EXYNOS4210_RTC(obj) \ - OBJECT_CHECK(Exynos4210RTCState, (obj), TYPE_EXYNOS4210_RTC) - -typedef struct Exynos4210RTCState { - SysBusDevice parent_obj; - - MemoryRegion iomem; - - /* registers */ - uint32_t reg_intp; - uint32_t reg_rtccon; - uint32_t reg_ticcnt; - uint32_t reg_rtcalm; - uint32_t reg_almsec; - uint32_t reg_almmin; - uint32_t reg_almhour; - uint32_t reg_almday; - uint32_t reg_almmon; - uint32_t reg_almyear; - uint32_t reg_curticcnt; - - ptimer_state *ptimer; /* tick timer */ - ptimer_state *ptimer_1Hz; /* clock timer */ - uint32_t freq; - - qemu_irq tick_irq; /* Time Tick Generator irq */ - qemu_irq alm_irq; /* alarm irq */ - - struct tm current_tm; /* current time */ -} Exynos4210RTCState; - -#define TICCKSEL(value) ((value & (0x0F << 4)) >> 4) - -/*** VMState ***/ -static const VMStateDescription vmstate_exynos4210_rtc_state = { - .name = "exynos4210.rtc", - .version_id = 1, - .minimum_version_id = 1, - .fields = (VMStateField[]) { - VMSTATE_UINT32(reg_intp, Exynos4210RTCState), - VMSTATE_UINT32(reg_rtccon, Exynos4210RTCState), - VMSTATE_UINT32(reg_ticcnt, Exynos4210RTCState), - VMSTATE_UINT32(reg_rtcalm, Exynos4210RTCState), - VMSTATE_UINT32(reg_almsec, Exynos4210RTCState), - VMSTATE_UINT32(reg_almmin, Exynos4210RTCState), - VMSTATE_UINT32(reg_almhour, Exynos4210RTCState), - VMSTATE_UINT32(reg_almday, Exynos4210RTCState), - VMSTATE_UINT32(reg_almmon, Exynos4210RTCState), - VMSTATE_UINT32(reg_almyear, Exynos4210RTCState), - VMSTATE_UINT32(reg_curticcnt, Exynos4210RTCState), - VMSTATE_PTIMER(ptimer, Exynos4210RTCState), - VMSTATE_PTIMER(ptimer_1Hz, Exynos4210RTCState), - VMSTATE_UINT32(freq, Exynos4210RTCState), - VMSTATE_INT32(current_tm.tm_sec, Exynos4210RTCState), - VMSTATE_INT32(current_tm.tm_min, Exynos4210RTCState), - VMSTATE_INT32(current_tm.tm_hour, Exynos4210RTCState), - VMSTATE_INT32(current_tm.tm_wday, Exynos4210RTCState), - VMSTATE_INT32(current_tm.tm_mday, Exynos4210RTCState), - VMSTATE_INT32(current_tm.tm_mon, Exynos4210RTCState), - VMSTATE_INT32(current_tm.tm_year, Exynos4210RTCState), - VMSTATE_END_OF_LIST() - } -}; - -#define BCD3DIGITS(x) \ - ((uint32_t)to_bcd((uint8_t)(x % 100)) + \ - ((uint32_t)to_bcd((uint8_t)((x % 1000) / 100)) << 8)) - -static void check_alarm_raise(Exynos4210RTCState *s) -{ - unsigned int alarm_raise = 0; - struct tm stm = s->current_tm; - - if ((s->reg_rtcalm & 0x01) && - (to_bcd((uint8_t)stm.tm_sec) == (uint8_t)s->reg_almsec)) { - alarm_raise = 1; - } - if ((s->reg_rtcalm & 0x02) && - (to_bcd((uint8_t)stm.tm_min) == (uint8_t)s->reg_almmin)) { - alarm_raise = 1; - } - if ((s->reg_rtcalm & 0x04) && - (to_bcd((uint8_t)stm.tm_hour) == (uint8_t)s->reg_almhour)) { - alarm_raise = 1; - } - if ((s->reg_rtcalm & 0x08) && - (to_bcd((uint8_t)stm.tm_mday) == (uint8_t)s->reg_almday)) { - alarm_raise = 1; - } - if ((s->reg_rtcalm & 0x10) && - (to_bcd((uint8_t)stm.tm_mon) == (uint8_t)s->reg_almmon)) { - alarm_raise = 1; - } - if ((s->reg_rtcalm & 0x20) && - (BCD3DIGITS(stm.tm_year) == s->reg_almyear)) { - alarm_raise = 1; - } - - if (alarm_raise) { - DPRINTF("ALARM IRQ\n"); - /* set irq status */ - s->reg_intp |= INTP_ALM_ENABLE; - qemu_irq_raise(s->alm_irq); - } -} - -/* - * RTC update frequency - * Parameters: - * reg_value - current RTCCON register or his new value - */ -static void exynos4210_rtc_update_freq(Exynos4210RTCState *s, - uint32_t reg_value) -{ - uint32_t freq; - - freq = s->freq; - /* set frequncy for time generator */ - s->freq = RTC_BASE_FREQ / (1 << TICCKSEL(reg_value)); - - if (freq != s->freq) { - ptimer_set_freq(s->ptimer, s->freq); - DPRINTF("freq=%dHz\n", s->freq); - } -} - -/* month is between 0 and 11. */ -static int get_days_in_month(int month, int year) -{ - static const int days_tab[12] = { - 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 - }; - int d; - if ((unsigned)month >= 12) { - return 31; - } - d = days_tab[month]; - if (month == 1) { - if ((year % 4) == 0 && ((year % 100) != 0 || (year % 400) == 0)) { - d++; - } - } - return d; -} - -/* update 'tm' to the next second */ -static void rtc_next_second(struct tm *tm) -{ - int days_in_month; - - tm->tm_sec++; - if ((unsigned)tm->tm_sec >= 60) { - tm->tm_sec = 0; - tm->tm_min++; - if ((unsigned)tm->tm_min >= 60) { - tm->tm_min = 0; - tm->tm_hour++; - if ((unsigned)tm->tm_hour >= 24) { - tm->tm_hour = 0; - /* next day */ - tm->tm_wday++; - if ((unsigned)tm->tm_wday >= 7) { - tm->tm_wday = 0; - } - days_in_month = get_days_in_month(tm->tm_mon, - tm->tm_year + 1900); - tm->tm_mday++; - if (tm->tm_mday < 1) { - tm->tm_mday = 1; - } else if (tm->tm_mday > days_in_month) { - tm->tm_mday = 1; - tm->tm_mon++; - if (tm->tm_mon >= 12) { - tm->tm_mon = 0; - tm->tm_year++; - } - } - } - } - } -} - -/* - * tick handler - */ -static void exynos4210_rtc_tick(void *opaque) -{ - Exynos4210RTCState *s = (Exynos4210RTCState *)opaque; - - DPRINTF("TICK IRQ\n"); - /* set irq status */ - s->reg_intp |= INTP_TICK_ENABLE; - /* raise IRQ */ - qemu_irq_raise(s->tick_irq); - - /* restart timer */ - ptimer_set_count(s->ptimer, s->reg_ticcnt); - ptimer_run(s->ptimer, 1); -} - -/* - * 1Hz clock handler - */ -static void exynos4210_rtc_1Hz_tick(void *opaque) -{ - Exynos4210RTCState *s = (Exynos4210RTCState *)opaque; - - rtc_next_second(&s->current_tm); - /* DPRINTF("1Hz tick\n"); */ - - /* raise IRQ */ - if (s->reg_rtcalm & ALARM_INT_ENABLE) { - check_alarm_raise(s); - } - - ptimer_set_count(s->ptimer_1Hz, RTC_BASE_FREQ); - ptimer_run(s->ptimer_1Hz, 1); -} - -/* - * RTC Read - */ -static uint64_t exynos4210_rtc_read(void *opaque, hwaddr offset, - unsigned size) -{ - uint32_t value = 0; - Exynos4210RTCState *s = (Exynos4210RTCState *)opaque; - - switch (offset) { - case INTP: - value = s->reg_intp; - break; - case RTCCON: - value = s->reg_rtccon; - break; - case TICCNT: - value = s->reg_ticcnt; - break; - case RTCALM: - value = s->reg_rtcalm; - break; - case ALMSEC: - value = s->reg_almsec; - break; - case ALMMIN: - value = s->reg_almmin; - break; - case ALMHOUR: - value = s->reg_almhour; - break; - case ALMDAY: - value = s->reg_almday; - break; - case ALMMON: - value = s->reg_almmon; - break; - case ALMYEAR: - value = s->reg_almyear; - break; - - case BCDSEC: - value = (uint32_t)to_bcd((uint8_t)s->current_tm.tm_sec); - break; - case BCDMIN: - value = (uint32_t)to_bcd((uint8_t)s->current_tm.tm_min); - break; - case BCDHOUR: - value = (uint32_t)to_bcd((uint8_t)s->current_tm.tm_hour); - break; - case BCDDAYWEEK: - value = (uint32_t)to_bcd((uint8_t)s->current_tm.tm_wday); - break; - case BCDDAY: - value = (uint32_t)to_bcd((uint8_t)s->current_tm.tm_mday); - break; - case BCDMON: - value = (uint32_t)to_bcd((uint8_t)s->current_tm.tm_mon + 1); - break; - case BCDYEAR: - value = BCD3DIGITS(s->current_tm.tm_year); - break; - - case CURTICNT: - s->reg_curticcnt = ptimer_get_count(s->ptimer); - value = s->reg_curticcnt; - break; - - default: - fprintf(stderr, - "[exynos4210.rtc: bad read offset " TARGET_FMT_plx "]\n", - offset); - break; - } - return value; -} - -/* - * RTC Write - */ -static void exynos4210_rtc_write(void *opaque, hwaddr offset, - uint64_t value, unsigned size) -{ - Exynos4210RTCState *s = (Exynos4210RTCState *)opaque; - - switch (offset) { - case INTP: - if (value & INTP_ALM_ENABLE) { - qemu_irq_lower(s->alm_irq); - s->reg_intp &= (~INTP_ALM_ENABLE); - } - if (value & INTP_TICK_ENABLE) { - qemu_irq_lower(s->tick_irq); - s->reg_intp &= (~INTP_TICK_ENABLE); - } - break; - case RTCCON: - if (value & RTC_ENABLE) { - exynos4210_rtc_update_freq(s, value); - } - if ((value & RTC_ENABLE) > (s->reg_rtccon & RTC_ENABLE)) { - /* clock timer */ - ptimer_set_count(s->ptimer_1Hz, RTC_BASE_FREQ); - ptimer_run(s->ptimer_1Hz, 1); - DPRINTF("run clock timer\n"); - } - if ((value & RTC_ENABLE) < (s->reg_rtccon & RTC_ENABLE)) { - /* tick timer */ - ptimer_stop(s->ptimer); - /* clock timer */ - ptimer_stop(s->ptimer_1Hz); - DPRINTF("stop all timers\n"); - } - if (value & RTC_ENABLE) { - if ((value & TICK_TIMER_ENABLE) > - (s->reg_rtccon & TICK_TIMER_ENABLE) && - (s->reg_ticcnt)) { - ptimer_set_count(s->ptimer, s->reg_ticcnt); - ptimer_run(s->ptimer, 1); - DPRINTF("run tick timer\n"); - } - if ((value & TICK_TIMER_ENABLE) < - (s->reg_rtccon & TICK_TIMER_ENABLE)) { - ptimer_stop(s->ptimer); - } - } - s->reg_rtccon = value; - break; - case TICCNT: - if (value > TICNT_THRESHOLD) { - s->reg_ticcnt = value; - } else { - fprintf(stderr, - "[exynos4210.rtc: bad TICNT value %u ]\n", - (uint32_t)value); - } - break; - - case RTCALM: - s->reg_rtcalm = value; - break; - case ALMSEC: - s->reg_almsec = (value & 0x7f); - break; - case ALMMIN: - s->reg_almmin = (value & 0x7f); - break; - case ALMHOUR: - s->reg_almhour = (value & 0x3f); - break; - case ALMDAY: - s->reg_almday = (value & 0x3f); - break; - case ALMMON: - s->reg_almmon = (value & 0x1f); - break; - case ALMYEAR: - s->reg_almyear = (value & 0x0fff); - break; - - case BCDSEC: - if (s->reg_rtccon & RTC_ENABLE) { - s->current_tm.tm_sec = (int)from_bcd((uint8_t)value); - } - break; - case BCDMIN: - if (s->reg_rtccon & RTC_ENABLE) { - s->current_tm.tm_min = (int)from_bcd((uint8_t)value); - } - break; - case BCDHOUR: - if (s->reg_rtccon & RTC_ENABLE) { - s->current_tm.tm_hour = (int)from_bcd((uint8_t)value); - } - break; - case BCDDAYWEEK: - if (s->reg_rtccon & RTC_ENABLE) { - s->current_tm.tm_wday = (int)from_bcd((uint8_t)value); - } - break; - case BCDDAY: - if (s->reg_rtccon & RTC_ENABLE) { - s->current_tm.tm_mday = (int)from_bcd((uint8_t)value); - } - break; - case BCDMON: - if (s->reg_rtccon & RTC_ENABLE) { - s->current_tm.tm_mon = (int)from_bcd((uint8_t)value) - 1; - } - break; - case BCDYEAR: - if (s->reg_rtccon & RTC_ENABLE) { - /* 3 digits */ - s->current_tm.tm_year = (int)from_bcd((uint8_t)value) + - (int)from_bcd((uint8_t)((value >> 8) & 0x0f)) * 100; - } - break; - - default: - fprintf(stderr, - "[exynos4210.rtc: bad write offset " TARGET_FMT_plx "]\n", - offset); - break; - - } -} - -/* - * Set default values to timer fields and registers - */ -static void exynos4210_rtc_reset(DeviceState *d) -{ - Exynos4210RTCState *s = EXYNOS4210_RTC(d); - - qemu_get_timedate(&s->current_tm, 0); - - DPRINTF("Get time from host: %d-%d-%d %2d:%02d:%02d\n", - s->current_tm.tm_year, s->current_tm.tm_mon, s->current_tm.tm_mday, - s->current_tm.tm_hour, s->current_tm.tm_min, s->current_tm.tm_sec); - - s->reg_intp = 0; - s->reg_rtccon = 0; - s->reg_ticcnt = 0; - s->reg_rtcalm = 0; - s->reg_almsec = 0; - s->reg_almmin = 0; - s->reg_almhour = 0; - s->reg_almday = 0; - s->reg_almmon = 0; - s->reg_almyear = 0; - - s->reg_curticcnt = 0; - - exynos4210_rtc_update_freq(s, s->reg_rtccon); - ptimer_stop(s->ptimer); - ptimer_stop(s->ptimer_1Hz); -} - -static const MemoryRegionOps exynos4210_rtc_ops = { - .read = exynos4210_rtc_read, - .write = exynos4210_rtc_write, - .endianness = DEVICE_NATIVE_ENDIAN, -}; - -/* - * RTC timer initialization - */ -static void exynos4210_rtc_init(Object *obj) -{ - Exynos4210RTCState *s = EXYNOS4210_RTC(obj); - SysBusDevice *dev = SYS_BUS_DEVICE(obj); - QEMUBH *bh; - - bh = qemu_bh_new(exynos4210_rtc_tick, s); - s->ptimer = ptimer_init(bh); - ptimer_set_freq(s->ptimer, RTC_BASE_FREQ); - exynos4210_rtc_update_freq(s, 0); - - bh = qemu_bh_new(exynos4210_rtc_1Hz_tick, s); - s->ptimer_1Hz = ptimer_init(bh); - ptimer_set_freq(s->ptimer_1Hz, RTC_BASE_FREQ); - - sysbus_init_irq(dev, &s->alm_irq); - sysbus_init_irq(dev, &s->tick_irq); - - memory_region_init_io(&s->iomem, obj, &exynos4210_rtc_ops, s, - "exynos4210-rtc", EXYNOS4210_RTC_REG_MEM_SIZE); - sysbus_init_mmio(dev, &s->iomem); -} - -static void exynos4210_rtc_class_init(ObjectClass *klass, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(klass); - - dc->reset = exynos4210_rtc_reset; - dc->vmsd = &vmstate_exynos4210_rtc_state; -} - -static const TypeInfo exynos4210_rtc_info = { - .name = TYPE_EXYNOS4210_RTC, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(Exynos4210RTCState), - .instance_init = exynos4210_rtc_init, - .class_init = exynos4210_rtc_class_init, -}; - -static void exynos4210_rtc_register_types(void) -{ - type_register_static(&exynos4210_rtc_info); -} - -type_init(exynos4210_rtc_register_types) |