157 lines
4.8 KiB
C
157 lines
4.8 KiB
C
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#ifndef _SUNXI_HAL_RTC_H
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#define _SUNXI_HAL_RTC_H
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#include <sunxi_hal_common.h>
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#include <rtc/rtc.h>
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#include <hal_clk.h>
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#include <hal_reset.h>
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#include <rtc/platform_rtc.h>
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/*
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* Time unit conversions
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*/
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#define SEC_IN_MIN 60
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#define SEC_IN_HOUR (60 * SEC_IN_MIN)
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#define SEC_IN_DAY (24 * SEC_IN_HOUR)
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/*
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* The year parameter passed to the driver is usually an offset relative to
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* the year 1900. This macro is used to convert this offset to another one
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* relative to the minimum year allowed by the hardware.
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*/
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#define SUNXI_YEAR_OFF(x) ((x)->min - 1900)
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#define EFEX_FLAG (0x5AA5A55A)
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#define RTC_FEL_INDEX 2
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#define RTC_BOOT_INDEX 6
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#define RTC_LOG_LEVEL_INDEX 5
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/* debug */
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#define SUNXI_DEBUG_MODE_FLAG (0x59)
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/* efex */
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#define SUNXI_EFEX_CMD_FLAG (0x5A)
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/* boot-resignature */
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#define SUNXI_BOOT_RESIGNATURE_FLAG (0x5B)
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/* recovery or boot-recovery */
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#define SUNXI_BOOT_RECOVERY_FLAG (0x5C)
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/* sysrecovery */
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#define SUNXI_SYS_RECOVERY_FLAG (0x5D)
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/* usb-recovery*/
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#define SUNXI_USB_RECOVERY_FLAG (0x5E)
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/* bootloader */
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#define SUNXI_FASTBOOT_FLAG (0x5F)
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/* uboot */
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#define SUNXI_UBOOT_FLAG (0x60)
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#define SUNXI_MASK_DH 0x0000001f
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#define SUNXI_MASK_SM 0x0000003f
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#define SUNXI_MASK_M 0x0000000f
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#define SUNXI_MASK_LY 0x00000001
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#define SUNXI_MASK_D 0x00000ffe
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#define SUNXI_GET(x, mask, shift) (((x) & ((mask) << (shift))) \
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>> (shift))
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#define SUNXI_SET(x, mask, shift) (((x) & (mask)) << (shift))
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/*
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* Get date values
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*/
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#define SUNXI_DATE_GET_DAY_VALUE(x) SUNXI_GET(x, SUNXI_MASK_DH, 0)
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#define SUNXI_DATE_GET_MON_VALUE(x) SUNXI_GET(x, SUNXI_MASK_M, 8)
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#define SUNXI_DATE_GET_YEAR_VALUE(x, d) SUNXI_GET(x, (d)->mask, (d)->yshift)
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/*
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* Get time values
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*/
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#define SUNXI_TIME_GET_SEC_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 0)
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#define SUNXI_TIME_GET_MIN_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 8)
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#define SUNXI_TIME_GET_HOUR_VALUE(x) SUNXI_GET(x, SUNXI_MASK_DH, 16)
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/*
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* Get alarm values
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*/
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#define SUNXI_ALRM_GET_SEC_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 0)
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#define SUNXI_ALRM_GET_MIN_VALUE(x) SUNXI_GET(x, SUNXI_MASK_SM, 8)
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#define SUNXI_ALRM_GET_HOUR_VALUE(x) SUNXI_GET(x, SUNXI_MASK_DH, 16)
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/*
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* Set date values
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*/
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#define SUNXI_DATE_SET_DAY_VALUE(x) SUNXI_DATE_GET_DAY_VALUE(x)
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#define SUNXI_DATE_SET_MON_VALUE(x) SUNXI_SET(x, SUNXI_MASK_M, 8)
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#define SUNXI_DATE_SET_YEAR_VALUE(x, d) SUNXI_SET(x, (d)->mask, (d)->yshift)
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#define SUNXI_LEAP_SET_VALUE(x, shift) SUNXI_SET(x, SUNXI_MASK_LY, shift)
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/*
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* Set time values
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*/
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#define SUNXI_TIME_SET_SEC_VALUE(x) SUNXI_TIME_GET_SEC_VALUE(x)
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#define SUNXI_TIME_SET_MIN_VALUE(x) SUNXI_SET(x, SUNXI_MASK_SM, 8)
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#define SUNXI_TIME_SET_HOUR_VALUE(x) SUNXI_SET(x, SUNXI_MASK_DH, 16)
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/*
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* Set alarm values
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*/
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#define SUNXI_ALRM_SET_SEC_VALUE(x) SUNXI_ALRM_GET_SEC_VALUE(x)
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#define SUNXI_ALRM_SET_MIN_VALUE(x) SUNXI_SET(x, SUNXI_MASK_SM, 8)
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#define SUNXI_ALRM_SET_HOUR_VALUE(x) SUNXI_SET(x, SUNXI_MASK_DH, 16)
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#define SUNXI_ALRM_SET_DAY_VALUE(x) SUNXI_SET(x, SUNXI_MASK_D, 21)
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typedef int (*rtc_callback_t)(void);
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/*
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* min and max year are arbitrary set considering the limited range of the
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* hardware register field
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*/
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struct hal_rtc_data_year
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{
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unsigned int min; /* min year allowed */
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unsigned int max; /* max year allowed */
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unsigned int mask; /* mask for the year field */
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unsigned int yshift; /* bit shift to get the year */
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unsigned char leap_shift; /* bit shift to get the leap year */
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};
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struct hal_rtc_dev
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{
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struct hal_rtc_data_year *data_year;
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rtc_callback_t user_callback;
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unsigned long base;
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int irq;
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hal_clk_t bus_clk;
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hal_clk_t rtc1k_clk;
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hal_clk_t rtcspi_clk;
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struct reset_control *reset;
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};
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typedef enum
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{
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RTC_GET_TIME = 0,
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RTC_SET_TIME = 1,
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RTC_GET_ALARM = 2,
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RTC_SET_ALARM = 3,
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RTC_CALLBACK = 4,
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RTC_IRQENABLE = 5
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} hal_rtc_transfer_cmd_t;
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void hal_rtc_set_fel_flag(void);
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u32 hal_rtc_probe_fel_flag(void);
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void hal_rtc_clear_fel_flag(void);
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int hal_rtc_get_bootmode_flag(void);
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int hal_rtc_set_bootmode_flag(u8 flag);
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void hal_rtc_write_data(int index, u32 val);
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u32 hal_rtc_read_data(int index);
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int hal_rtc_gettime(struct rtc_time *rtc_tm);
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int hal_rtc_settime(struct rtc_time *rtc_tm);
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int hal_rtc_getalarm(struct rtc_wkalrm *wkalrm);
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int hal_rtc_setalarm(struct rtc_wkalrm *wkalrm);
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int hal_rtc_alarm_irq_enable(unsigned int enabled);
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void hal_rtc_min_year_show(unsigned int *min);
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void hal_rtc_max_year_show(unsigned int *max);
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int hal_rtc_register_callback(rtc_callback_t user_callback);
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int hal_rtc_init(void);
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int hal_rtc_deinit(void);
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#endif /* _SUNXI_HAL_RTC_H */
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