hw: Move Exynos4210 RTC from hw/timer/ to hw/rtc/ subdirectory

Move RTC devices under the hw/rtc/ subdirectory.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20191003230404.19384-11-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

2 files changed, 0 insertions, 609 deletions

diff --git a/hw/timer/Makefile.objs b/hw/timer/Makefile.objs
index 294465ef47..33191d74cb 100644
--- a/hw/timer/Makefile.objs
+++ b/hw/timer/Makefile.objs
@@ -19,7 +19,6 @@ common-obj-$(CONFIG_NRF51_SOC) += nrf51_timer.o
 common-obj-$(CONFIG_ALTERA_TIMER) += altera_timer.o
 common-obj-$(CONFIG_EXYNOS4) += exynos4210_mct.o
 common-obj-$(CONFIG_EXYNOS4) += exynos4210_pwm.o
-common-obj-$(CONFIG_EXYNOS4) += exynos4210_rtc.o
 common-obj-$(CONFIG_OMAP) += omap_gptimer.o
 common-obj-$(CONFIG_OMAP) += omap_synctimer.o
 common-obj-$(CONFIG_PXA2XX) += pxa2xx_timer.o
diff --git a/hw/timer/exynos4210_rtc.c b/hw/timer/exynos4210_rtc.c
deleted file mode 100644
index f85483a07f..0000000000
--- a/hw/timer/exynos4210_rtc.c
+++ /dev/null
@@ -1,608 +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 "qemu-common.h"
-#include "qemu/log.h"
-#include "qemu/module.h"
-#include "hw/sysbus.h"
-#include "migration/vmstate.h"
-#include "qemu/timer.h"
-#include "qemu/bcd.h"
-#include "hw/ptimer.h"
-
-#include "hw/irq.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
- * Must be called within a ptimer_transaction_begin/commit block for s->ptimer.
- */
-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:
-        qemu_log_mask(LOG_GUEST_ERROR,
-                      "exynos4210.rtc: bad read offset " TARGET_FMT_plx,
-                      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:
-        ptimer_transaction_begin(s->ptimer_1Hz);
-        ptimer_transaction_begin(s->ptimer);
-        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);
-            }
-        }
-        ptimer_transaction_commit(s->ptimer_1Hz);
-        ptimer_transaction_commit(s->ptimer);
-        s->reg_rtccon = value;
-        break;
-    case TICCNT:
-        if (value > TICNT_THRESHOLD) {
-            s->reg_ticcnt = value;
-        } else {
-            qemu_log_mask(LOG_GUEST_ERROR,
-                          "exynos4210.rtc: bad TICNT value %u",
-                          (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:
-        qemu_log_mask(LOG_GUEST_ERROR,
-                      "exynos4210.rtc: bad write offset " TARGET_FMT_plx,
-                      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;
-
-    ptimer_transaction_begin(s->ptimer);
-    exynos4210_rtc_update_freq(s, s->reg_rtccon);
-    ptimer_stop(s->ptimer);
-    ptimer_transaction_commit(s->ptimer);
-    ptimer_transaction_begin(s->ptimer_1Hz);
-    ptimer_stop(s->ptimer_1Hz);
-    ptimer_transaction_commit(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);
-
-    s->ptimer = ptimer_init(exynos4210_rtc_tick, s, PTIMER_POLICY_DEFAULT);
-    ptimer_transaction_begin(s->ptimer);
-    ptimer_set_freq(s->ptimer, RTC_BASE_FREQ);
-    exynos4210_rtc_update_freq(s, 0);
-    ptimer_transaction_commit(s->ptimer);
-
-    s->ptimer_1Hz = ptimer_init(exynos4210_rtc_1Hz_tick,
-                                s, PTIMER_POLICY_DEFAULT);
-    ptimer_transaction_begin(s->ptimer_1Hz);
-    ptimer_set_freq(s->ptimer_1Hz, RTC_BASE_FREQ);
-    ptimer_transaction_commit(s->ptimer_1Hz);
-
-    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)