Updates for STM32 F3 SPI and RTC
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5631 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo
parent
3458ee74a4
commit
94676be7b4
@ -2421,7 +2421,7 @@ config STM32_USBHOST_PKTDUMP
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endmenu
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menu "USB Device Configuration"
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comment "USB Device Configuration"
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config STM32_USB_ITRMP
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bool "Re-map USB interrupt"
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@ -1,5 +1,5 @@
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/************************************************************************************
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* arch/arm/src/stm32/chip/stm32f10xxx_rtc.h
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* arch/arm/src/stm32/chip/stm32_rtc.h
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*
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* Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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@ -33,8 +33,8 @@
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*
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************************************************************************************/
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#ifndef __ARCH_ARM_SRC_STM32_CHIP_STM32F10XXX_RTC_H
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#define __ARCH_ARM_SRC_STM32_CHIP_STM32F10XXX_RTC_H
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#ifndef __ARCH_ARM_SRC_STM32_CHIP_STM32_RTC_H
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#define __ARCH_ARM_SRC_STM32_CHIP_STM32_RTC_H
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/************************************************************************************
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* Pre-processor Definitions
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@ -93,4 +93,4 @@
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#define RTC_DIVH_RTC_DIV_SHIFT (0) /* Bits 3-0: RTC Clock Divider High */
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#define RTC_DIVH_RTC_DIV_MASK (0x0f << RTC_DIVH_RTC_DIV_SHIFT)
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#endif /* __ARCH_ARM_SRC_STM32_CHIP_STM32F10XXX_RTC_H */
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#endif /* __ARCH_ARM_SRC_STM32_CHIP_STM32_RTC_H */
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@ -1,7 +1,7 @@
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/************************************************************************************
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* arch/arm/src/stm32/chip/stm32f20xxx_rtc.h
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* arch/arm/src/stm32/chip/stm32_rtcc.h.h
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Copyright (C) 2011-2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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@ -33,8 +33,8 @@
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*
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************************************************************************************/
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#ifndef __ARCH_ARM_SRC_STM32_CHIP_STM32F20XXX_RTC_H
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#define __ARCH_ARM_SRC_STM32_CHIP_STM32F20XXX_RTC_H
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#ifndef __ARCH_ARM_SRC_STM32_CHIP_STM32_RTCC_H
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#define __ARCH_ARM_SRC_STM32_CHIP_STM32_RTCC_H
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/************************************************************************************
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* Pre-processor Definitions
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@ -48,7 +48,9 @@
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#define STM32_RTC_ISR_OFFSET 0x000c /* RTC initialization and status register */
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#define STM32_RTC_PRER_OFFSET 0x0010 /* RTC prescaler register */
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#define STM32_RTC_WUTR_OFFSET 0x0014 /* RTC wakeup timer register */
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#define STM32_RTC_CALIBR_OFFSET 0x0018 /* RTC calibration register */
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#ifndef CONFIG_STM32_STM32F30XX
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# define STM32_RTC_CALIBR_OFFSET 0x0018 /* RTC calibration register */
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#endif
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#define STM32_RTC_ALRMAR_OFFSET 0x001c /* RTC alarm A register */
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#define STM32_RTC_ALRMBR_OFFSET 0x0020 /* RTC alarm B register */
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#define STM32_RTC_WPR_OFFSET 0x0024 /* RTC write protection register */
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@ -79,10 +81,12 @@
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#define STM32_RTC_BK13R_OFFSET 0x0084 /* RTC backup register 13 */
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#define STM32_RTC_BK14R_OFFSET 0x0088 /* RTC backup register 14 */
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#define STM32_RTC_BK15R_OFFSET 0x008c /* RTC backup register 15 */
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#define STM32_RTC_BK16R_OFFSET 0x0090 /* RTC backup register 16 */
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#define STM32_RTC_BK17R_OFFSET 0x0094 /* RTC backup register 17 */
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#define STM32_RTC_BK18R_OFFSET 0x0098 /* RTC backup register 18 */
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#define STM32_RTC_BK19R_OFFSET 0x009c /* RTC backup register 19 */
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#ifndef CONFIG_STM32_STM32F30XX
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# define STM32_RTC_BK16R_OFFSET 0x0090 /* RTC backup register 16 */
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# define STM32_RTC_BK17R_OFFSET 0x0094 /* RTC backup register 17 */
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# define STM32_RTC_BK18R_OFFSET 0x0098 /* RTC backup register 18 */
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# define STM32_RTC_BK19R_OFFSET 0x009c /* RTC backup register 19 */
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#endif
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/* Register Addresses ***************************************************************/
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@ -92,7 +96,9 @@
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#define STM32_RTC_ISR (STM32_RTC_BASE+STM32_RTC_ISR_OFFSET)
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#define STM32_RTC_PRER (STM32_RTC_BASE+STM32_RTC_PRER_OFFSET)
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#define STM32_RTC_WUTR (STM32_RTC_BASE+STM32_RTC_WUTR_OFFSET)
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#define STM32_RTC_CALIBR (STM32_RTC_BASE+STM32_RTC_CALIBR_OFFSET)
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#ifndef CONFIG_STM32_STM32F30XX
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# define STM32_RTC_CALIBR (STM32_RTC_BASE+STM32_RTC_CALIBR_OFFSET)
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#endif
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#define STM32_RTC_ALRMAR (STM32_RTC_BASE+STM32_RTC_ALRMAR_OFFSET)
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#define STM32_RTC_ALRMBR (STM32_RTC_BASE+STM32_RTC_ALRMBR_OFFSET)
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#define STM32_RTC_WPR (STM32_RTC_BASE+STM32_RTC_WPR_OFFSET)
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@ -123,10 +129,12 @@
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#define STM32_RTC_BK13R (STM32_RTC_BASE+STM32_RTC_BK13R_OFFSET)
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#define STM32_RTC_BK14R (STM32_RTC_BASE+STM32_RTC_BK14R_OFFSET)
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#define STM32_RTC_BK15R (STM32_RTC_BASE+STM32_RTC_BK15R_OFFSET)
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#define STM32_RTC_BK16R (STM32_RTC_BASE+STM32_RTC_BK16R_OFFSET)
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#define STM32_RTC_BK17R (STM32_RTC_BASE+STM32_RTC_BK17R_OFFSET)
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#define STM32_RTC_BK18R (STM32_RTC_BASE+STM32_RTC_BK18R_OFFSET)
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#define STM32_RTC_BK19R (STM32_RTC_BASE+STM32_RTC_BK19R_OFFSET)
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#ifndef CONFIG_STM32_STM32F30XX
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# define STM32_RTC_BK16R (STM32_RTC_BASE+STM32_RTC_BK16R_OFFSET)
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# define STM32_RTC_BK17R (STM32_RTC_BASE+STM32_RTC_BK17R_OFFSET)
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# define STM32_RTC_BK18R (STM32_RTC_BASE+STM32_RTC_BK18R_OFFSET)
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# define STM32_RTC_BK19R (STM32_RTC_BASE+STM32_RTC_BK19R_OFFSET)
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#endif
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/* Register Bitfield Definitions ****************************************************/
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@ -240,10 +248,12 @@
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/* RTC calibration register */
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#define RTC_CALIBR_DCS (1 << 7) /* Bit 7 Digital calibration sign */
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#define RTC_CALIBR_DC_SHIFT (0) /* Bits 4:0 0-4: Digital calibration */
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#define RTC_CALIBR_DC_MASK (31 << RTC_CALIBR_DC_SHIFT)
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# define RTC_CALIBR_DC(n) (((n) >> 2) << RTC_CALIBR_DC_SHIFT) /* n= 0, 4, 8, ... 126 */
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#ifndef CONFIG_STM32_STM32F30XX
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# define RTC_CALIBR_DCS (1 << 7) /* Bit 7 Digital calibration sign */
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# define RTC_CALIBR_DC_SHIFT (0) /* Bits 4:0 0-4: Digital calibration */
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# define RTC_CALIBR_DC_MASK (31 << RTC_CALIBR_DC_SHIFT)
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# define RTC_CALIBR_DC(n) (((n) >> 2) << RTC_CALIBR_DC_SHIFT) /* n= 0, 4, 8, ... 126 */
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#endif
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/* RTC alarm A/B registers */
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@ -318,15 +328,45 @@
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/* RTC calibration register */
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#define RTC_CALR_
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#define RTC_CALR_CALM_SHIFT (0) /* Bits 0-8: Calibration minus */
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#define RTC_CALR_CALM_MASK (0x1ff << RTC_CALR_CALM_SHIFT)
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#define RTC_CALR_CALW16 (1 << 13) /* Bit 13: Use a 16-second calibration cycle period */
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#define RTC_CALR_CALW8 (1 << 14) /* Bit 14: Use an 8-second calibration cycle period */
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#define RTC_CALR_CALP (1 << 15) /* Bit 15: Increase frequency of RTC by 488.5 ppm */
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/* RTC tamper and alternate function configuration register */
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#define RTC_TAFCR_CALM_SHIFT (0) /* Bits 0-8: Calibration minus */
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#define RTC_TAFCR_CALM_MASK (0x1ff << RTC_TAFCR_CALM_SHIFT)
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#define RTC_TAFCR_CALW16 (1 << 13) /* Bit 13: Use a 16-second calibration cycle period */
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#define RTC_TAFCR_CALW8 (1 << 14) /* Bit 14: Use an 8-second calibration cycle period */
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#define RTC_TAFCR_CALP (1 << 15) /* Bit 15: Increase frequency of RTC by 488.5 ppm */
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#define RTC_TAFCR_TAMP1E (1 << 0) /* Bit 0: RTC_TAMP1 input detection enable */
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#define RTC_TAFCR_TAMP1TRG (1 << 1) /* Bit 1: Active level for RTC_TAMP1 input */
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#define RTC_TAFCR_TAMPIE (1 << 2) /* Bit 2: Tamper interrupt enable */
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#define RTC_TAFCR_TAMP3E (1 << 5) /* Bit 5: RTC_TAMP3 detection enable */
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#define RTC_TAFCR_TAMP3TRG (1 << 6) /* Bit 6: Active level for RTC_TAMP3 input */
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#define RTC_TAFCR_TAMPTS (1 << 7) /* Bit 7: Activate timestamp on tamper detection event */
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#define RTC_TAFCR_TAMPFREQ_SHIFT (8) /* Bits 8-10: Tamper sampling frequency */
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#define RTC_TAFCR_TAMPFREQ_MASK (7 << RTC_TAFCR_TAMPFREQ_SHIFT)
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# define RTC_TAFCR_TAMPFREQ_DIV32768 (0 << RTC_TAFCR_TAMPFREQ_SHIFT) /* RTCCLK / 32768 (1 Hz) */
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# define RTC_TAFCR_TAMPFREQ_DIV16384 (1 << RTC_TAFCR_TAMPFREQ_SHIFT) /* RTCCLK / 16384 (2 Hz) */
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# define RTC_TAFCR_TAMPFREQ_DIV8192 (2 << RTC_TAFCR_TAMPFREQ_SHIFT) /* RTCCLK / 8192 (4 Hz) */
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# define RTC_TAFCR_TAMPFREQ_DIV4096 (3 << RTC_TAFCR_TAMPFREQ_SHIFT) /* RTCCLK / 4096 (8 Hz) */
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# define RTC_TAFCR_TAMPFREQ_DIV2048 (4 << RTC_TAFCR_TAMPFREQ_SHIFT) /* RTCCLK / 2048 (16 Hz) */
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# define RTC_TAFCR_TAMPFREQ_DIV1024 (5 << RTC_TAFCR_TAMPFREQ_SHIFT) /* RTCCLK / 1024 (32 Hz) */
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# define RTC_TAFCR_TAMPFREQ_DIV512 (6 << RTC_TAFCR_TAMPFREQ_SHIFT) /* RTCCLK / 512 (64 Hz) */
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# define RTC_TAFCR_TAMPFREQ_DIV256 (7 << RTC_TAFCR_TAMPFREQ_SHIFT) /* RTCCLK / 256 (128 Hz) */
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#define RTC_TAFCR_TAMPFLT_SHIFT (11) /* Bits 11-12: RTC_TAMPx filter count */
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#define RTC_TAFCR_TAMPFLT_MASK (3 << RTC_TAFCR_TAMPFLT_SHIFT)
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#define RTC_TAFCR_TAMPPRCH_SHIFT (13) /* Bits 13-14: RTC_TAMPx precharge duration */
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#define RTC_TAFCR_TAMPPRCH_MASK (3 << RTC_TAFCR_TAMPPRCH_SHIFT)
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# define RTC_TAFCR_TAMPPRCH_1CYCLE (0 << RTC_TAFCR_TAMPPRCH_SHIFT) /* 1 RTCCLK cycle */
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# define RTC_TAFCR_TAMPPRCH_2CYCLES (1 << RTC_TAFCR_TAMPPRCH_SHIFT) /* 2 RTCCLK cycles */
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# define RTC_TAFCR_TAMPPRCH_4CYCLES (2 << RTC_TAFCR_TAMPPRCH_SHIFT) /* 4 RTCCLK cycles */
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# define RTC_TAFCR_TAMPPRCH_5CYCLES (3 << RTC_TAFCR_TAMPPRCH_SHIFT) /* 8 RTCCLK cycles */
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#define RTC_TAFCR_TAMPPUDIS (1 << 15) /* Bit 15: RTC_TAMPx pull-up disable */
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#define RTC_TAFCR_PC13VALUE (1 << 18) /* Bit 18: RTC_ALARM output type/PC13 value */
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#define RTC_TAFCR_PC13MODE (1 << 19) /* Bit 19: PC13 mode */
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#define RTC_TAFCR_PC14VALUE (1 << 20) /* Bit 20: PC14 value */
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#define RTC_TAFCR_PC14MODE (1 << 21) /* Bit 21: PC14 mode */
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#define RTC_TAFCR_PC15VALUE (1 << 22) /* Bit 22: PC15 value */
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#define RTC_TAFCR_PC15MODE (1 << 23) /* Bit 23: PC15 mode */
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/* RTC alarm A/B sub second register */
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@ -335,4 +375,4 @@
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#define RTC_ALRMSSR_MASKSS_SHIFT (0) /* Bits 24-27: Mask the most-significant bits starting at this bit */
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#define RTC_ALRMSSR_MASKSS_MASK (0xffff << RTC_ALRMSSR_SS_SHIFT)
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#endif /* __ARCH_ARM_SRC_STM32_CHIP_STM32F20XXX_RTC_H */
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#endif /* __ARCH_ARM_SRC_STM32_CHIP_STM32_RTCC_H */
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@ -65,7 +65,8 @@
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#define STM32_SPI_RXCRCR_OFFSET 0x0014 /* SPI Rx CRC register (16-bit) */
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#define STM32_SPI_TXCRCR_OFFSET 0x0018 /* SPI Tx CRC register (16-bit) */
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#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX)
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#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F30XX) || \
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defined(CONFIG_STM32_STM32F40XX)
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# define STM32_SPI_I2SCFGR_OFFSET 0x001c /* I2S configuration register */
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# define STM32_SPI_I2SPR_OFFSET 0x0020 /* I2S prescaler register */
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#endif
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@ -90,7 +91,8 @@
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# define STM32_SPI2_CRCPR (STM32_SPI2_BASE+STM32_SPI_CRCPR_OFFSET)
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# define STM32_SPI2_RXCRCR (STM32_SPI2_BASE+STM32_SPI_RXCRCR_OFFSET)
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# define STM32_SPI2_TXCRCR (STM32_SPI2_BASE+STM32_SPI_TXCRCR_OFFSET)
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# if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX)
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#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F30XX) || \
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defined(CONFIG_STM32_STM32F40XX)
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# define STM32_SPI2_I2SCFGR (STM32_SPI2_BASE+STM32_SPI_I2SCFGR_OFFSET)
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# define STM32_SPI2_I2SPR (STM32_SPI2_BASE+STM32_SPI_I2SPR_OFFSET)
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# endif
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@ -104,7 +106,8 @@
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# define STM32_SPI3_CRCPR (STM32_SPI3_BASE+STM32_SPI_CRCPR_OFFSET)
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# define STM32_SPI3_RXCRCR (STM32_SPI3_BASE+STM32_SPI_RXCRCR_OFFSET)
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# define STM32_SPI3_TXCRCR (STM32_SPI3_BASE+STM32_SPI_TXCRCR_OFFSET)
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# if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX)
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#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F30XX) || \
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defined(CONFIG_STM32_STM32F40XX)
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# define STM32_SPI3_I2SCFGR (STM32_SPI3_BASE+STM32_SPI_I2SCFGR_OFFSET)
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# define STM32_SPI3_I2SPR (STM32_SPI3_BASE+STM32_SPI_I2SPR_OFFSET)
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# endif
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@ -144,7 +147,8 @@
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#define SPI_CR2_TXDMAEN (1 << 1) /* Bit 1: Tx Buffer DMA Enable */
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#define SPI_CR2_SSOE (1 << 2) /* Bit 2: SS Output Enable */
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#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX)
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#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F30XX) || \
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defined(CONFIG_STM32_STM32F40XX)
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# define STM32_SPI3_FRF (1 << 4) /* Bit 4: Frame format */
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#endif
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#define SPI_CR2_RXNEIE (1 << 6) /* Bit 6: RX buffer not empty interrupt enable */
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#define SPI_CR2_TXEIE (1 << 7) /* Bit 7: Tx buffer empty interrupt enable */
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#ifdef CONFIG_STM32_STM32F30XX
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#define SPI_CR1_DS_SHIFT (8) /* Bits 8-11: Data size */
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#define SPI_CR1_DS_MASK (15 << SPI_CR1_DS_SHIFT)
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# define SPI_CR1_DS_4BIT (3 << SPI_CR1_DS_SHIFT)
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# define SPI_CR1_DS_5BIT (4 << SPI_CR1_DS_SHIFT)
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# define SPI_CR1_DS_6BIT (5 << SPI_CR1_DS_SHIFT)
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# define SPI_CR1_DS_7BIT (6 << SPI_CR1_DS_SHIFT)
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# define SPI_CR1_DS_8BIT (7 << SPI_CR1_DS_SHIFT)
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# define SPI_CR1_DS_9BIT (8 << SPI_CR1_DS_SHIFT)
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# define SPI_CR1_DS_10BIT (9 << SPI_CR1_DS_SHIFT)
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# define SPI_CR1_DS_11BIT (10 << SPI_CR1_DS_SHIFT)
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# define SPI_CR1_DS_12BIT (11 << SPI_CR1_DS_SHIFT)
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# define SPI_CR1_DS_13BIT (12 << SPI_CR1_DS_SHIFT)
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# define SPI_CR1_DS_14BIT (13 << SPI_CR1_DS_SHIFT)
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# define SPI_CR1_DS_15BIT (14 << SPI_CR1_DS_SHIFT)
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# define SPI_CR1_DS_16BIT (15 << SPI_CR1_DS_SHIFT)
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#define SPI_CR2_FRXTH (1 << 12) /* Bit 12: FIFO reception threshold */
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#define SPI_CR2_LDMARX (1 << 13) /* Bit 13: Last DMA transfer for receptione */
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#define SPI_CR2_LDMATX (1 << 14) /* Bit 14: Last DMA transfer for transmission */
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#endif
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/* SPI status register */
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#define SPI_SR_RXNE (1 << 0) /* Bit 0: Receive buffer not empty */
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#define SPI_SR_TXE (1 << 1) /* Bit 1: Transmit buffer empty */
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#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX)
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#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F30XX) || \
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defined(CONFIG_STM32_STM32F40XX)
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# define SPI_SR_CHSIDE (1 << 2) /* Bit 2: Channel side */
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# define SPI_SR_UDR (1 << 3) /* Bit 3: Underrun flag */
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#endif
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#define SPI_SR_OVR (1 << 6) /* Bit 6: Overrun flag */
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#define SPI_SR_BSY (1 << 7) /* Bit 7: Busy flag */
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#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX)
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#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F30XX) || \
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defined(CONFIG_STM32_STM32F40XX)
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# define SPI_SR_TIFRFE (1 << 8) /* Bit 8: TI frame format error */
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#endif
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#ifdef CONFIG_STM32_STM32F30XX
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#define SPI_CR1_FRLVL_SHIFT (9) /* Bits 9-10: FIFO reception level */
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#define SPI_CR1_FRLVL_MASK (3 << SPI_CR1_FRLVL_SHIFT)
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# define SPI_CR1_FRLVL_EMPTY (0 << SPI_CR1_FRLVL_SHIFT) /* FIFO empty */
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# define SPI_CR1_FRLVL_QUARTER (1 << SPI_CR1_FRLVL_SHIFT) /* 1/4 FIFO */
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# define SPI_CR1_FRLVL_HALF (2 << SPI_CR1_FRLVL_SHIFT) /* 1/2 FIFO */
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# define SPI_CR1_FRLVL_FULL (3 << SPI_CR1_FRLVL_SHIFT) /* FIFO full */
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#define SPI_CR1_FTLVL_SHIFT (11) /* Bits 11-12: FIFO transmission level */
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#define SPI_CR1_FTLVL_MASK (3 << SPI_CR1_FTLVL_SHIFT)
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# define SPI_CR1_FTLVL_EMPTY (0 << SPI_CR1_FTLVL_SHIFT) /* FIFO empty */
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# define SPI_CR1_FTLVL_QUARTER (1 << SPI_CR1_FTLVL_SHIFT) /* 1/4 FIFO */
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# define SPI_CR1_FTLVL_HALF (2 << SPI_CR1_FTLVL_SHIFT) /* 1/2 FIFO */
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# define SPI_CR1_FTLVL_FULL (3 << SPI_CR1_FTLVL_SHIFT) /* FIFO full */
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#endif
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/* I2S configuration register */
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#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX)
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#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F30XX) || \
|
||||
defined(CONFIG_STM32_STM32F40XX)
|
||||
# define SPI_I2SCFGR_CHLEN (1 << 0) /* Bit 0: Channel length (number of bits per audio channel) */
|
||||
# define SPI_I2SCFGR_DATLEN_SHIFT (1) /* Bit 1-2: Data length to be transferred */
|
||||
# define SPI_I2SCFGR_DATLEN_MASK (3 << SPI_I2SCFGR_DATLEN_SHIFT)
|
||||
@ -200,7 +243,8 @@
|
||||
|
||||
/* I2S prescaler register */
|
||||
|
||||
#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F40XX)
|
||||
#if defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F30XX) || \
|
||||
defined(CONFIG_STM32_STM32F40XX)
|
||||
# define SPI_I2SPR_I2SDIV_SHIFT (0) /* Bit 0-7: I2S Linear prescaler */
|
||||
# define SPI_I2SPR_I2SDIV_MASK (0xff << SPI_I2SPR_I2SDIV_SHIFT)
|
||||
# define SPI_I2SPR_ODD (1 << 8) /* Bit 8: Odd factor for the prescaler */
|
||||
|
||||
@ -1,338 +0,0 @@
|
||||
/************************************************************************************
|
||||
* arch/arm/src/stm32/chip/stm32f40xxx_rtc.h
|
||||
*
|
||||
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM_SRC_STM32_CHIP_STM32F40XXX_RTC_H
|
||||
#define __ARCH_ARM_SRC_STM32_CHIP_STM32F40XXX_RTC_H
|
||||
|
||||
/************************************************************************************
|
||||
* Pre-processor Definitions
|
||||
************************************************************************************/
|
||||
|
||||
/* Register Offsets *****************************************************************/
|
||||
|
||||
#define STM32_RTC_TR_OFFSET 0x0000 /* RTC time register */
|
||||
#define STM32_RTC_DR_OFFSET 0x0004 /* RTC date register */
|
||||
#define STM32_RTC_CR_OFFSET 0x0008 /* RTC control register */
|
||||
#define STM32_RTC_ISR_OFFSET 0x000c /* RTC initialization and status register */
|
||||
#define STM32_RTC_PRER_OFFSET 0x0010 /* RTC prescaler register */
|
||||
#define STM32_RTC_WUTR_OFFSET 0x0014 /* RTC wakeup timer register */
|
||||
#define STM32_RTC_CALIBR_OFFSET 0x0018 /* RTC calibration register */
|
||||
#define STM32_RTC_ALRMAR_OFFSET 0x001c /* RTC alarm A register */
|
||||
#define STM32_RTC_ALRMBR_OFFSET 0x0020 /* RTC alarm B register */
|
||||
#define STM32_RTC_WPR_OFFSET 0x0024 /* RTC write protection register */
|
||||
#define STM32_RTC_SSR_OFFSET 0x0028 /* RTC sub second register */
|
||||
#define STM32_RTC_SHIFTR_OFFSET 0x002c /* RTC shift control register */
|
||||
#define STM32_RTC_TSTR_OFFSET 0x0030 /* RTC time stamp time register */
|
||||
#define STM32_RTC_TSDR_OFFSET 0x0030 /* RTC time stamp date register */
|
||||
#define STM32_RTC_TSSSR_OFFSET 0x0038 /* RTC timestamp sub second register */
|
||||
#define STM32_RTC_CALR_OFFSET 0x003c /* RTC calibration register */
|
||||
#define STM32_RTC_TAFCR_OFFSET 0x0040 /* RTC tamper and alternate function configuration register */
|
||||
#define STM32_RTC_ALRMASSR_OFFSET 0x0044 /* RTC alarm A sub second register */
|
||||
#define STM32_RTC_ALRMBSSR_OFFSET 0x0048 /* RTC alarm B sub second register */
|
||||
|
||||
#define STM32_RTC_BKR_OFFSET(n) (0x0050+((n)<<2))
|
||||
#define STM32_RTC_BK0R_OFFSET 0x0050 /* RTC backup register 0 */
|
||||
#define STM32_RTC_BK1R_OFFSET 0x0054 /* RTC backup register 1 */
|
||||
#define STM32_RTC_BK2R_OFFSET 0x0058 /* RTC backup register 2 */
|
||||
#define STM32_RTC_BK3R_OFFSET 0x005c /* RTC backup register 3 */
|
||||
#define STM32_RTC_BK4R_OFFSET 0x0060 /* RTC backup register 4 */
|
||||
#define STM32_RTC_BK5R_OFFSET 0x0064 /* RTC backup register 5 */
|
||||
#define STM32_RTC_BK6R_OFFSET 0x0068 /* RTC backup register 6 */
|
||||
#define STM32_RTC_BK7R_OFFSET 0x006c /* RTC backup register 7 */
|
||||
#define STM32_RTC_BK8R_OFFSET 0x0070 /* RTC backup register 8 */
|
||||
#define STM32_RTC_BK9R_OFFSET 0x0074 /* RTC backup register 9 */
|
||||
#define STM32_RTC_BK10R_OFFSET 0x0078 /* RTC backup register 10 */
|
||||
#define STM32_RTC_BK11R_OFFSET 0x007c /* RTC backup register 11 */
|
||||
#define STM32_RTC_BK12R_OFFSET 0x0080 /* RTC backup register 12 */
|
||||
#define STM32_RTC_BK13R_OFFSET 0x0084 /* RTC backup register 13 */
|
||||
#define STM32_RTC_BK14R_OFFSET 0x0088 /* RTC backup register 14 */
|
||||
#define STM32_RTC_BK15R_OFFSET 0x008c /* RTC backup register 15 */
|
||||
#define STM32_RTC_BK16R_OFFSET 0x0090 /* RTC backup register 16 */
|
||||
#define STM32_RTC_BK17R_OFFSET 0x0094 /* RTC backup register 17 */
|
||||
#define STM32_RTC_BK18R_OFFSET 0x0098 /* RTC backup register 18 */
|
||||
#define STM32_RTC_BK19R_OFFSET 0x009c /* RTC backup register 19 */
|
||||
|
||||
/* Register Addresses ***************************************************************/
|
||||
|
||||
#define STM32_RTC_TR (STM32_RTC_BASE+STM32_RTC_TR_OFFSET)
|
||||
#define STM32_RTC_DR (STM32_RTC_BASE+STM32_RTC_DR_OFFSET)
|
||||
#define STM32_RTC_CR (STM32_RTC_BASE+STM32_RTC_CR_OFFSET)
|
||||
#define STM32_RTC_ISR (STM32_RTC_BASE+STM32_RTC_ISR_OFFSET)
|
||||
#define STM32_RTC_PRER (STM32_RTC_BASE+STM32_RTC_PRER_OFFSET)
|
||||
#define STM32_RTC_WUTR (STM32_RTC_BASE+STM32_RTC_WUTR_OFFSET)
|
||||
#define STM32_RTC_CALIBR (STM32_RTC_BASE+STM32_RTC_CALIBR_OFFSET)
|
||||
#define STM32_RTC_ALRMAR (STM32_RTC_BASE+STM32_RTC_ALRMAR_OFFSET)
|
||||
#define STM32_RTC_ALRMBR (STM32_RTC_BASE+STM32_RTC_ALRMBR_OFFSET)
|
||||
#define STM32_RTC_WPR (STM32_RTC_BASE+STM32_RTC_WPR_OFFSET)
|
||||
#define STM32_RTC_SSR (STM32_RTC_BASE+STM32_RTC_SSR_OFFSET)
|
||||
#define STM32_RTC_SHIFTR (STM32_RTC_BASE+STM32_RTC_SHIFTR_OFFSET)
|
||||
#define STM32_RTC_TSTR (STM32_RTC_BASE+STM32_RTC_TSTR_OFFSET)
|
||||
#define STM32_RTC_TSDR (STM32_RTC_BASE+STM32_RTC_TSDR_OFFSET)
|
||||
#define STM32_RTC_TSSSR (STM32_RTC_BASE+STM32_RTC_TSSSR_OFFSET)
|
||||
#define STM32_RTC_CALR (STM32_RTC_BASE+STM32_RTC_CALR_OFFSET)
|
||||
#define STM32_RTC_TAFCR (STM32_RTC_BASE+STM32_RTC_TAFCR_OFFSET)
|
||||
#define STM32_RTC_ALRMASSR (STM32_RTC_BASE+STM32_RTC_ALRMASSR_OFFSET)
|
||||
#define STM32_RTC_ALRMBSSR (STM32_RTC_BASE+STM32_RTC_ALRMBSSR_OFFSET)
|
||||
|
||||
#define STM32_RTC_BKR(n) (STM32_RTC_BASE+STM32_RTC_BKR_OFFSET(n))
|
||||
#define STM32_RTC_BK0R (STM32_RTC_BASE+STM32_RTC_BK0R_OFFSET)
|
||||
#define STM32_RTC_BK1R (STM32_RTC_BASE+STM32_RTC_BK1R_OFFSET)
|
||||
#define STM32_RTC_BK2R (STM32_RTC_BASE+STM32_RTC_BK2R_OFFSET)
|
||||
#define STM32_RTC_BK3R (STM32_RTC_BASE+STM32_RTC_BK3R_OFFSET)
|
||||
#define STM32_RTC_BK4R (STM32_RTC_BASE+STM32_RTC_BK4R_OFFSET)
|
||||
#define STM32_RTC_BK5R (STM32_RTC_BASE+STM32_RTC_BK5R_OFFSET)
|
||||
#define STM32_RTC_BK6R (STM32_RTC_BASE+STM32_RTC_BK6R_OFFSET)
|
||||
#define STM32_RTC_BK7R (STM32_RTC_BASE+STM32_RTC_BK7R_OFFSET)
|
||||
#define STM32_RTC_BK8R (STM32_RTC_BASE+STM32_RTC_BK8R_OFFSET)
|
||||
#define STM32_RTC_BK9R (STM32_RTC_BASE+STM32_RTC_BK9R_OFFSET)
|
||||
#define STM32_RTC_BK10R (STM32_RTC_BASE+STM32_RTC_BK10R_OFFSET)
|
||||
#define STM32_RTC_BK11R (STM32_RTC_BASE+STM32_RTC_BK11R_OFFSET)
|
||||
#define STM32_RTC_BK12R (STM32_RTC_BASE+STM32_RTC_BK12R_OFFSET)
|
||||
#define STM32_RTC_BK13R (STM32_RTC_BASE+STM32_RTC_BK13R_OFFSET)
|
||||
#define STM32_RTC_BK14R (STM32_RTC_BASE+STM32_RTC_BK14R_OFFSET)
|
||||
#define STM32_RTC_BK15R (STM32_RTC_BASE+STM32_RTC_BK15R_OFFSET)
|
||||
#define STM32_RTC_BK16R (STM32_RTC_BASE+STM32_RTC_BK16R_OFFSET)
|
||||
#define STM32_RTC_BK17R (STM32_RTC_BASE+STM32_RTC_BK17R_OFFSET)
|
||||
#define STM32_RTC_BK18R (STM32_RTC_BASE+STM32_RTC_BK18R_OFFSET)
|
||||
#define STM32_RTC_BK19R (STM32_RTC_BASE+STM32_RTC_BK19R_OFFSET)
|
||||
|
||||
/* Register Bitfield Definitions ****************************************************/
|
||||
|
||||
/* RTC time register */
|
||||
|
||||
#define RTC_TR_SU_SHIFT (0) /* Bits 0-3: Second units in BCD format */
|
||||
#define RTC_TR_SU_MASK (15 << RTC_TR_SU_SHIFT)
|
||||
#define RTC_TR_ST_SHIFT (4) /* Bits 4-6: Second tens in BCD format */
|
||||
#define RTC_TR_ST_MASK (7 << RTC_TR_ST_SHIFT)
|
||||
#define RTC_TR_MNU_SHIFT (8) /* Bit 8-11: Minute units in BCD format */
|
||||
#define RTC_TR_MNU_MASK (15 << RTC_TR_MNU_SHIFT)
|
||||
#define RTC_TR_MNT_SHIFT (12) /* Bits 12-14: Minute tens in BCD format */
|
||||
#define RTC_TR_MNT_MASK (7 << RTC_TR_MNT_SHIFT)
|
||||
#define RTC_TR_HU_SHIFT (16) /* Bit 16-19: Hour units in BCD format */
|
||||
#define RTC_TR_HU_MASK (15 << RTC_TR_HU_SHIFT)
|
||||
#define RTC_TR_HT_SHIFT (20) /* Bits 20-21: Hour tens in BCD format */
|
||||
#define RTC_TR_HT_MASK (3 << RTC_TR_HT_SHIFT)
|
||||
#define RTC_TR_PM (1 << 22) /* Bit 22: AM/PM notation */
|
||||
#define RTC_TR_RESERVED_BITS (0xff808080)
|
||||
|
||||
/* RTC date register */
|
||||
|
||||
#define RTC_DR_DU_SHIFT (0) /* Bits 0-3: Date units in BCD format */
|
||||
#define RTC_DR_DU_MASK (15 << RTC_DR_DU_SHIFT)
|
||||
#define RTC_DR_DT_SHIFT (4) /* Bits 4-5: Date tens in BCD format */
|
||||
#define RTC_DR_DT_MASK (3 << RTC_DR_DT_SHIFT)
|
||||
#define RTC_DR_MU_SHIFT (8) /* Bits 8-11: Month units in BCD format */
|
||||
#define RTC_DR_MU_MASK (15 << RTC_DR_MU_SHIFT)
|
||||
#define RTC_DR_MT (1 << 12) /* Bit 12: Month tens in BCD format */
|
||||
#define RTC_DR_WDU_SHIFT (13) /* Bits 13-15: Week day units */
|
||||
#define RTC_DR_WDU_MASK (7 << RTC_DR_WDU_SHIFT)
|
||||
# define RTC_DR_WDU_MONDAY (1 << RTC_DR_WDU_SHIFT)
|
||||
# define RTC_DR_WDU_TUESDAY (2 << RTC_DR_WDU_SHIFT)
|
||||
# define RTC_DR_WDU_WEDNESDAY (3 << RTC_DR_WDU_SHIFT)
|
||||
# define RTC_DR_WDU_THURSDAY (4 << RTC_DR_WDU_SHIFT)
|
||||
# define RTC_DR_WDU_FRIDAY (5 << RTC_DR_WDU_SHIFT)
|
||||
# define RTC_DR_WDU_SATURDAY (6 << RTC_DR_WDU_SHIFT)
|
||||
# define RTC_DR_WDU_SUNDAY (7 << RTC_DR_WDU_SHIFT)
|
||||
#define RTC_DR_YU_SHIFT (16) /* Bits 16-19: Year units in BCD format */
|
||||
#define RTC_DR_YU_MASK (15 << RTC_DR_YU_SHIFT)
|
||||
#define RTC_DR_YT_SHIFT (20) /* Bits 20-23: Year tens in BCD format */
|
||||
#define RTC_DR_YT_MASK (15 << RTC_DR_YT_SHIFT)
|
||||
#define RTC_DR_RESERVED_BITS (0xff0000c0)
|
||||
|
||||
/* RTC control register */
|
||||
|
||||
#define RTC_CR_WUCKSEL_SHIFT (0) /* Bits 0-2: Wakeup clock selection */
|
||||
#define RTC_CR_WUCKSEL_MASK (7 << RTC_CR_WUCKSEL_SHIFT)
|
||||
# define RTC_CR_WUCKSEL_RTCDIV16 (0 << RTC_CR_WUCKSEL_SHIFT) /* 000: RTC/16 clock is selected */
|
||||
# define RTC_CR_WUCKSEL_RTCDIV8 (1 << RTC_CR_WUCKSEL_SHIFT) /* 001: RTC/8 clock is selected */
|
||||
# define RTC_CR_WUCKSEL_RTCDIV4 (2 << RTC_CR_WUCKSEL_SHIFT) /* 010: RTC/4 clock is selected */
|
||||
# define RTC_CR_WUCKSEL_RTCDIV2 (3 << RTC_CR_WUCKSEL_SHIFT) /* 011: RTC/2 clock is selected */
|
||||
# define RTC_CR_WUCKSEL_CKSPRE (4 << RTC_CR_WUCKSEL_SHIFT) /* 10x: ck_spre clock is selected */
|
||||
# define RTC_CR_WUCKSEL_CKSPREADD (6 << RTC_CR_WUCKSEL_SHIFT) /* 11x: ck_spr clock and 216 added WUT counter */
|
||||
#define RTC_CR_TSEDGE (1 << 3) /* Bit 3: Timestamp event active edge */
|
||||
#define RTC_CR_REFCKON (1 << 4) /* Bit 4: Reference clock detection enable (50 or 60 Hz) */
|
||||
#define RTC_CR_BYPSHAD (1 << 5) /* Bit 5: Bypass the shadow registers */
|
||||
#define RTC_CR_FMT (1 << 6) /* Bit 6: Hour format */
|
||||
#define RTC_CR_DCE (1 << 7) /* Bit 7: Coarse digital calibration enable */
|
||||
#define RTC_CR_ALRAE (1 << 8) /* Bit 8: Alarm A enable */
|
||||
#define RTC_CR_ALRBE (1 << 9) /* Bit 9: Alarm B enable */
|
||||
#define RTC_CR_WUTE (1 << 10) /* Bit 10: Wakeup timer enable */
|
||||
#define RTC_CR_TSE (1 << 11) /* Bit 11: Time stamp enable */
|
||||
#define RTC_CR_ALRAIE (1 << 12) /* Bit 12: Alarm A interrupt enable */
|
||||
#define RTC_CR_ALRBIE (1 << 13) /* Bit 13: Alarm B interrupt enable */
|
||||
#define RTC_CR_WUTIE (1 << 14) /* Bit 14: Wakeup timer interrupt enable */
|
||||
#define RTC_CR_TSIE (1 << 15) /* Bit 15: Timestamp interrupt enable */
|
||||
#define RTC_CR_ADD1H (1 << 16) /* Bit 16: Add 1 hour (summer time change) */
|
||||
#define RTC_CR_SUB1H (1 << 17) /* Bit 17: Subtract 1 hour (winter time change) */
|
||||
#define RTC_CR_BKP (1 << 18) /* Bit 18: Backup */
|
||||
#define RTC_CR_COSEL (1 << 19) /* Bit 19 : Calibration output selection */
|
||||
#define RTC_CR_POL (1 << 20) /* Bit 20: Output polarity */
|
||||
#define RTC_CR_OSEL_SHIFT (21) /* Bits 21-22: Output selection */
|
||||
#define RTC_CR_OSEL_MASK (3 << RTC_CR_OSEL_SHIFT)
|
||||
# define RTC_CR_OSEL_DISABLED (0 << RTC_CR_OSEL_SHIFT) /* 00: Output disabled */
|
||||
# define RTC_CR_OSEL_ALRMA (1 << RTC_CR_OSEL_SHIFT) /* 01: Alarm A output enabled */
|
||||
# define RTC_CR_OSEL_ALRMB (2 << RTC_CR_OSEL_SHIFT) /* 10: Alarm B output enabled */
|
||||
# define RTC_CR_OSEL_WUT (3 << RTC_CR_OSEL_SHIFT) /* 11: Wakeup output enabled */
|
||||
#define RTC_CR_COE (1 << 23) /* Bit 23: Calibration output enable */
|
||||
|
||||
/* RTC initialization and status register */
|
||||
|
||||
#define RTC_ISR_ALRAWF (1 << 0) /* Bit 0: Alarm A write flag */
|
||||
#define RTC_ISR_ALRBWF (1 << 1) /* Bit 1: Alarm B write flag */
|
||||
#define RTC_ISR_WUTWF (1 << 2) /* Bit 2: Wakeup timer write flag */
|
||||
#define RTC_ISR_SHPF (1 << 3) /* Bit 3: Shift operation pending */
|
||||
#define RTC_ISR_INITS (1 << 4) /* Bit 4: Initialization status flag */
|
||||
#define RTC_ISR_RSF (1 << 5) /* Bit 5: Registers synchronization flag */
|
||||
#define RTC_ISR_INITF (1 << 6) /* Bit 6: Initialization flag */
|
||||
#define RTC_ISR_INIT (1 << 7) /* Bit 7: Initialization mode */
|
||||
#define RTC_ISR_ALRAF (1 << 8) /* Bit 8: Alarm A flag */
|
||||
#define RTC_ISR_ALRBF (1 << 9) /* Bit 9: Alarm B flag */
|
||||
#define RTC_ISR_WUTF (1 << 10) /* Bit 10: Wakeup timer flag */
|
||||
#define RTC_ISR_TSF (1 << 11) /* Bit 11: Timestamp flag */
|
||||
#define RTC_ISR_TSOVF (1 << 12) /* Bit 12: Timestamp overflow flag */
|
||||
#define RTC_ISR_TAMP1F (1 << 13) /* Bit 13: Tamper detection flag */
|
||||
#define RTC_ISR_TAMP2F (1 << 14) /* Bit 14: TAMPER2 detection flag */
|
||||
#define RTC_ISR_RECALPF (1 << 16) /* Bit 16: Recalibration pending Flag */
|
||||
#define RTC_ISR_ALLFLAGS (0x00017fff)
|
||||
|
||||
/* RTC prescaler register */
|
||||
|
||||
#define RTC_PRER_PREDIV_S_SHIFT (0) /* Bits 0-14: Synchronous prescaler factor */
|
||||
#define RTC_PRER_PREDIV_S_MASK (0x7fff << RTC_PRER_PREDIV_S_SHIFT)
|
||||
#define RTC_PRER_PREDIV_A_SHIFT (16) /* Bits 16-22: Asynchronous prescaler factor */
|
||||
#define RTC_PRER_PREDIV_A_MASK (0x7f << RTC_PRER_PREDIV_A_SHIFT)
|
||||
|
||||
/* RTC wakeup timer register */
|
||||
|
||||
#define RTC_WUTR_MASK (0xffff) /* Bits 15:0 Wakeup auto-reload value bits */
|
||||
|
||||
/* RTC calibration register */
|
||||
|
||||
#define RTC_CALIBR_DCS (1 << 7) /* Bit 7 Digital calibration sign */
|
||||
#define RTC_CALIBR_DC_SHIFT (0) /* Bits 4:0 0-4: Digital calibration */
|
||||
#define RTC_CALIBR_DC_MASK (31 << RTC_CALIBR_DC_SHIFT)
|
||||
# define RTC_CALIBR_DC(n) (((n) >> 2) << RTC_CALIBR_DC_SHIFT) /* n= 0, 4, 8, ... 126 */
|
||||
|
||||
/* RTC alarm A/B registers */
|
||||
|
||||
#define RTC_ALRMR_SU_SHIFT (0) /* Bits 0-3: Second units in BCD format. */
|
||||
#define RTC_ALRMR_SU_MASK (15 << RTC_ALRMR_SU_SHIFT)
|
||||
#define RTC_ALRMR_ST_SHIFT (4) /* Bits 4-6: Second tens in BCD format. */
|
||||
#define RTC_ALRMR_ST_MASK (7 << RTC_ALRMR_ST_SHIFT)
|
||||
#define RTC_ALRMR_MSK1 (1 << 7) /* Bit 7 : Alarm A seconds mask */
|
||||
#define RTC_ALRMR_MNU_SHIFT (8) /* Bits 8-11: Minute units in BCD format. */
|
||||
#define RTC_ALRMR_MNU_MASK (15 << RTC_ALRMR_MNU_SHIFT)
|
||||
#define RTC_ALRMR_MNT_SHIFT (12) /* Bits 12-14: Minute tens in BCD format. */
|
||||
#define RTC_ALRMR_MNT_MASK (7 << RTC_ALRMR_MNT_SHIFT)
|
||||
#define RTC_ALRMR_MSK2 (1 << 15) /* Bit 15 : Alarm A minutes mask */
|
||||
#define RTC_ALRMR_HU_SHIFT (16) /* Bits 16-19: Hour units in BCD format. */
|
||||
#define RTC_ALRMR_HU_MASK (15 << RTC_ALRMR_HU_SHIFT)
|
||||
#define RTC_ALRMR_HT_SHIFT (20) /* Bits 20-21: Hour tens in BCD format. */
|
||||
#define RTC_ALRMR_HT_MASK (3 << RTC_ALRMR_HT_SHIFT)
|
||||
#define RTC_ALRMR_PM (1 << 22) /* Bit 22 : AM/PM notation */
|
||||
#define RTC_ALRMR_MSK3 (1 << 23) /* Bit 23 : Alarm A hours mask */
|
||||
#define RTC_ALRMR_DU_SHIFT (24) /* Bits 24-27: Date units or day in BCD format. */
|
||||
#define RTC_ALRMR_DU_MASK (15 << RTC_ALRMR_DU_SHIFT)
|
||||
#define RTC_ALRMR_DT_SHIFT (28) /* Bits 28-29: Date tens in BCD format. */
|
||||
#define RTC_ALRMR_DT_MASK (3 << RTC_ALRMR_DT_SHIFT)
|
||||
#define RTC_ALRMR_WDSEL (1 << 30) /* Bit 30: Week day selection */
|
||||
#define RTC_ALRMR_MSK4 (1 << 31) /* Bit 31: Alarm A date mask */
|
||||
|
||||
/* RTC write protection register */
|
||||
|
||||
#define RTC_WPR_MASK (0xff) /* Bits 0-7: Write protection key */
|
||||
|
||||
/* RTC sub second register */
|
||||
|
||||
#define RTC_SSR_MASK (0xffff) /* Bits 0-15: Sub second value */
|
||||
|
||||
/* RTC shift control register */
|
||||
|
||||
#define RTC_SHIFTR_SUBFS_SHIFT (0) /* Bits 0-14: Subtract a fraction of a second */
|
||||
#define RTC_SHIFTR_SUBFS_MASK (0x7ffff << RTC_SHIFTR_SUBFS_SHIFT)
|
||||
#define RTC_SHIFTR_ADD1S (1 << 31) /* Bit 31: Add one second */
|
||||
|
||||
/* RTC time stamp time register */
|
||||
|
||||
#define RTC_TSTR_SU_SHIFT (0) /* Bits 0-3: Second units in BCD format. */
|
||||
#define RTC_TSTR_SU_MASK (15 << RTC_TSTR_SU_SHIFT)
|
||||
#define RTC_TSTR_ST_SHIFT (4) /* Bits 4-6: Second tens in BCD format. */
|
||||
#define RTC_TSTR_ST_MASK (7 << RTC_TSTR_ST_SHIFT)
|
||||
#define RTC_TSTR_MNU_SHIFT (8) /* Bits 8-11: Minute units in BCD format. */
|
||||
#define RTC_TSTR_MNU_MASK (15 << RTC_TSTR_MNU_SHIFT)
|
||||
#define RTC_TSTR_MNT_SHIFT (12) /* Bits 12-14: Minute tens in BCD format. */
|
||||
#define RTC_TSTR_MNT_MASK (7 << RTC_TSTR_MNT_SHIFT)
|
||||
#define RTC_TSTR_HU_SHIFT (16) /* Bits 16-19: Hour units in BCD format. */
|
||||
#define RTC_TSTR_HU_MASK (15 << RTC_TSTR_HU_SHIFT)
|
||||
#define RTC_TSTR_HT_SHIFT (20) /* Bits 20-21: Hour tens in BCD format. */
|
||||
#define RTC_TSTR_HT_MASK (3 << RTC_TSTR_HT_SHIFT)
|
||||
#define RTC_TSTR_PM (1 << 22) /* Bit 22: AM/PM notation */
|
||||
|
||||
/* RTC time stamp date register */
|
||||
|
||||
#define RTC_TSDR_DU_SHIFT (0) /* Bit 0-3: Date units in BCD format */
|
||||
#define RTC_TSDR_DU_MASK (15 << RTC_TSDR_DU_SHIFT) */
|
||||
#define RTC_TSDR_DT_SHIFT (4) /* Bits 4-5: Date tens in BCD format */
|
||||
#define RTC_TSDR_DT_MASK (3 << RTC_TSDR_DT_SHIFT)
|
||||
#define RTC_TSDR_MU_SHIFT (8) /* Bits 8-11: Month units in BCD format */
|
||||
#define RTC_TSDR_MU_MASK (xx << RTC_TSDR_MU_SHIFT)
|
||||
#define RTC_TSDR_MT (1 << 12) /* Bit 12: Month tens in BCD format */
|
||||
#define RTC_TSDR_WDU_SHIFT (13) /* Bits 13-15: Week day units */
|
||||
#define RTC_TSDR_WDU_MASK (7 << RTC_TSDR_WDU_SHIFT)
|
||||
|
||||
/* RTC timestamp sub second register */
|
||||
|
||||
#define RTC_TSSSR_MASK (0xffff) /* Bits 0-15: Sub second value */
|
||||
|
||||
/* RTC calibration register */
|
||||
|
||||
#define RTC_CALR_
|
||||
|
||||
/* RTC tamper and alternate function configuration register */
|
||||
|
||||
#define RTC_TAFCR_CALM_SHIFT (0) /* Bits 0-8: Calibration minus */
|
||||
#define RTC_TAFCR_CALM_MASK (0x1ff << RTC_TAFCR_CALM_SHIFT)
|
||||
#define RTC_TAFCR_CALW16 (1 << 13) /* Bit 13: Use a 16-second calibration cycle period */
|
||||
#define RTC_TAFCR_CALW8 (1 << 14) /* Bit 14: Use an 8-second calibration cycle period */
|
||||
#define RTC_TAFCR_CALP (1 << 15) /* Bit 15: Increase frequency of RTC by 488.5 ppm */
|
||||
|
||||
/* RTC alarm A/B sub second register */
|
||||
|
||||
#define RTC_ALRMSSR_SS_SHIFT (0) /* Bits 0-15: Sub second value */
|
||||
#define RTC_ALRMSSR_SS_MASK (0xffff << RTC_ALRMSSR_SS_SHIFT)
|
||||
#define RTC_ALRMSSR_MASKSS_SHIFT (0) /* Bits 24-27: Mask the most-significant bits starting at this bit */
|
||||
#define RTC_ALRMSSR_MASKSS_MASK (0xffff << RTC_ALRMSSR_SS_SHIFT)
|
||||
|
||||
#endif /* __ARCH_ARM_SRC_STM32_CHIP_STM32F40XXX_RTC_H */
|
||||
@ -65,16 +65,22 @@
|
||||
* for the selected STM32 family. The correct file cannot be selected by
|
||||
* the make system because it needs the intelligence that only exists in
|
||||
* chip.h that can associate an STM32 part number with an STM32 family.
|
||||
*
|
||||
* The STM32 F4 RTC differs dramatically the F1 RTC. The F1 RTC is a simple
|
||||
* battery-backed counter; the F4 RTC is provides broken-out data/time in BCD
|
||||
* format.
|
||||
*/
|
||||
|
||||
/* The STM32 F1 has a simple battery-backed counter for its RTC and has a separate
|
||||
* block for the BKP registers.
|
||||
*/
|
||||
|
||||
#if defined(CONFIG_STM32_STM32F10XX)
|
||||
# include "stm32f10xxx_rtc.c"
|
||||
#elif defined(CONFIG_STM32_STM32F20XX)
|
||||
# include "stm32f20xxx_rtc.c"
|
||||
#elif defined(CONFIG_STM32_STM32F40XX)
|
||||
# include "stm32f40xxx_rtc.c"
|
||||
# include "stm32_rtcounter.c"
|
||||
|
||||
/* The other families use a more traditional Realtime Clock/Calendar (RTCC) with
|
||||
* broken-out data/time in BCD format. The backup registers are integrated into
|
||||
* the RTCC in these families.
|
||||
*/
|
||||
|
||||
#elif defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F30XX) ||\
|
||||
defined(CONFIG_STM32_STM32F40XX)
|
||||
# include "stm32_rtcc.c"
|
||||
#endif
|
||||
|
||||
|
||||
@ -2,7 +2,9 @@
|
||||
* arch/arm/src/stm32/stm32_rtc.h
|
||||
*
|
||||
* Copyright (C) 2011 Uros Platise. All rights reserved.
|
||||
* Author: Uros Platise <uros.platise@isotel.eu>
|
||||
* Copyright (C) 2011-2013 Gregory Nutt. All rights reserved.
|
||||
* Author: Uros Platise <uros.platise@isotel.eu> (Original for the F1)
|
||||
* Gregory Nutt <gnutt@nuttx.org> (On-going support and development)
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
@ -43,13 +45,23 @@
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include "chip.h"
|
||||
|
||||
/* The STM32 F1 has a simple battery-backed counter for its RTC and has a separate
|
||||
* block for the BKP registers.
|
||||
*/
|
||||
|
||||
#if defined(CONFIG_STM32_STM32F10XX)
|
||||
# include "chip/stm32f10xxx_rtc.h"
|
||||
# include "chip/stm32_rtc.h"
|
||||
# include "chip/stm32_bkp.h"
|
||||
#elif defined(CONFIG_STM32_STM32F20XX)
|
||||
# include "chip/stm32f20xxx_rtc.h"
|
||||
#elif defined(CONFIG_STM32_STM32F40XX)
|
||||
# include "chip/stm32f40xxx_rtc.h"
|
||||
|
||||
/* The other families use a more traditional Realtime Clock/Calendar (RTCC) with
|
||||
* broken-out data/time in BCD format. The backup registers are integrated into
|
||||
* the RTCC in these families.
|
||||
*/
|
||||
|
||||
#elif defined(CONFIG_STM32_STM32F20XX) || defined(CONFIG_STM32_STM32F30XX) ||\
|
||||
defined(CONFIG_STM32_STM32F40XX)
|
||||
# include "chip/stm32_rtcc.h"
|
||||
#endif
|
||||
|
||||
/************************************************************************************
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
/************************************************************************************
|
||||
* arch/arm/src/stm32/stm32f40xxx_rtc.c
|
||||
* arch/arm/src/stm32/stm32_rtcc.c
|
||||
*
|
||||
* Copyright (C) 2011 Gregory Nutt. All rights reserved.
|
||||
* Copyright (C) 2012-2013 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
@ -148,7 +148,9 @@ static void rtc_dumpregs(FAR const char *msg)
|
||||
rtclldbg(" ISR: %08x\n", getreg32(STM32_RTC_ISR));
|
||||
rtclldbg(" PRER: %08x\n", getreg32(STM32_RTC_PRER));
|
||||
rtclldbg(" WUTR: %08x\n", getreg32(STM32_RTC_WUTR));
|
||||
#ifndef CONFIG_STM32_STM32F30XX
|
||||
rtclldbg(" CALIBR: %08x\n", getreg32(STM32_RTC_CALIBR));
|
||||
#endif
|
||||
rtclldbg(" ALRMAR: %08x\n", getreg32(STM32_RTC_ALRMAR));
|
||||
rtclldbg(" ALRMBR: %08x\n", getreg32(STM32_RTC_ALRMBR));
|
||||
rtclldbg(" SHIFTR: %08x\n", getreg32(STM32_RTC_SHIFTR));
|
||||
@ -270,7 +272,7 @@ static int rtc_synchwait(void)
|
||||
rtc_wprunlock();
|
||||
|
||||
/* Clear Registers synchronization flag (RSF) */
|
||||
|
||||
|
||||
regval = getreg32(STM32_RTC_ISR);
|
||||
regval &= ~RTC_ISR_RSF;
|
||||
putreg32(regval, STM32_RTC_ISR);
|
||||
@ -315,7 +317,7 @@ static int rtc_enterinit(void)
|
||||
volatile uint32_t timeout;
|
||||
uint32_t regval;
|
||||
int ret;
|
||||
|
||||
|
||||
/* Check if the Initialization mode is already set */
|
||||
|
||||
regval = getreg32(STM32_RTC_ISR);
|
||||
@ -326,9 +328,9 @@ static int rtc_enterinit(void)
|
||||
/* Set the Initialization mode */
|
||||
|
||||
putreg32(RTC_ISR_INIT, STM32_RTC_ISR);
|
||||
|
||||
|
||||
/* Wait until the RTC is in the INIT state (or a timeout occurs) */
|
||||
|
||||
|
||||
ret = -ETIMEDOUT;
|
||||
for (timeout = 0; timeout < INITMODE_TIMEOUT; timeout++)
|
||||
{
|
||||
@ -341,7 +343,7 @@ static int rtc_enterinit(void)
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
return ret;
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
@ -359,7 +361,7 @@ static int rtc_enterinit(void)
|
||||
************************************************************************************/
|
||||
|
||||
static void rtc_exitinit(void)
|
||||
{
|
||||
{
|
||||
uint32_t regval;
|
||||
|
||||
regval = getreg32(STM32_RTC_ISR);
|
||||
@ -384,13 +386,13 @@ static void rtc_exitinit(void)
|
||||
static uint32_t rtc_bin2bcd(int value)
|
||||
{
|
||||
uint32_t msbcd = 0;
|
||||
|
||||
|
||||
while (value >= 10)
|
||||
{
|
||||
msbcd++;
|
||||
value -= 10;
|
||||
}
|
||||
|
||||
|
||||
return (msbcd << 4) | value;
|
||||
}
|
||||
|
||||
@ -631,7 +633,7 @@ int up_rtcinitialize(void)
|
||||
#endif
|
||||
|
||||
g_rtc_enabled = true;
|
||||
rtc_dumpregs("After Initialization");
|
||||
rtc_dumpregs("After Initialization");
|
||||
return OK;
|
||||
}
|
||||
|
||||
@ -1,12 +1,12 @@
|
||||
/************************************************************************************
|
||||
* arch/arm/src/stm32/stm32f10xxx_rtc.c
|
||||
* arch/arm/src/stm32/stm32_rtcounter.c
|
||||
*
|
||||
* Copyright (C) 2011 Uros Platise. All rights reserved.
|
||||
* Author: Uros Platise <uros.platise@isotel.eu>
|
||||
*
|
||||
* With extensions, modifications by:
|
||||
*
|
||||
* Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
|
||||
* Copyright (C) 2011-2013 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregroy Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
@ -1,842 +0,0 @@
|
||||
/************************************************************************************
|
||||
* arch/arm/src/stm32/stm32f20xxx_rtc.c
|
||||
*
|
||||
* Copyright (C) 2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
*
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in
|
||||
* the documentation and/or other materials provided with the
|
||||
* distribution.
|
||||
* 3. Neither the name NuttX nor the names of its contributors may be
|
||||
* used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
||||
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
||||
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
||||
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
||||
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
||||
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
||||
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Included Files
|
||||
************************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <nuttx/arch.h>
|
||||
#include <nuttx/irq.h>
|
||||
#include <nuttx/rtc.h>
|
||||
|
||||
#include <time.h>
|
||||
#include <errno.h>
|
||||
#include <debug.h>
|
||||
|
||||
#include <arch/board/board.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
|
||||
#include "stm32_rtc.h"
|
||||
|
||||
#ifdef CONFIG_RTC
|
||||
|
||||
/************************************************************************************
|
||||
* Pre-processor Definitions
|
||||
************************************************************************************/
|
||||
/* Configuration ********************************************************************/
|
||||
/* This RTC implementation supports only date/time RTC hardware */
|
||||
|
||||
#ifndef CONFIG_RTC_DATETIME
|
||||
# error "CONFIG_RTC_DATETIME must be set to use this driver"
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_RTC_HIRES
|
||||
# error "CONFIG_RTC_HIRES must NOT be set with this driver"
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_STM32_PWR
|
||||
# error "CONFIG_STM32_PWR must selected to use this driver"
|
||||
#endif
|
||||
|
||||
#ifndef CONFIG_DEBUG
|
||||
# undef CONFIG_DEBUG_RTC
|
||||
#endif
|
||||
|
||||
/* Constants ************************************************************************/
|
||||
|
||||
#define SYNCHRO_TIMEOUT (0x00020000)
|
||||
#define INITMODE_TIMEOUT (0x00010000)
|
||||
#define RTC_MAGIC (0xfacefeed)
|
||||
#define RTC_PREDIV_S (0xff)
|
||||
#define RTC_PREDIV_A (0x7f)
|
||||
|
||||
/* Debug ****************************************************************************/
|
||||
|
||||
#ifdef CONFIG_DEBUG_RTC
|
||||
# define rtcdbg dbg
|
||||
# define rtcvdbg vdbg
|
||||
# define rtclldbg lldbg
|
||||
# define rtcllvdbg llvdbg
|
||||
#else
|
||||
# define rtcdbg(x...)
|
||||
# define rtcvdbg(x...)
|
||||
# define rtclldbg(x...)
|
||||
# define rtcllvdbg(x...)
|
||||
#endif
|
||||
|
||||
/************************************************************************************
|
||||
* Private Types
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Private Data
|
||||
************************************************************************************/
|
||||
|
||||
/* Callback to use when the alarm expires */
|
||||
|
||||
#ifdef CONFIG_RTC_ALARM
|
||||
static alarmcb_t g_alarmcb;
|
||||
#endif
|
||||
|
||||
/************************************************************************************
|
||||
* Public Data
|
||||
************************************************************************************/
|
||||
|
||||
/* g_rtc_enabled is set true after the RTC has successfully initialized */
|
||||
|
||||
volatile bool g_rtc_enabled = false;
|
||||
|
||||
/************************************************************************************
|
||||
* Private Functions
|
||||
************************************************************************************/
|
||||
/************************************************************************************
|
||||
* Name: rtc_dumpregs
|
||||
*
|
||||
* Description:
|
||||
* Disable RTC write protection
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value:
|
||||
* None
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#ifdef CONFIG_DEBUG_RTC
|
||||
static void rtc_dumpregs(FAR const char *msg)
|
||||
{
|
||||
rtclldbg("%s:\n", msg);
|
||||
rtclldbg(" TR: %08x\n", getreg32(STM32_RTC_TR));
|
||||
rtclldbg(" DR: %08x\n", getreg32(STM32_RTC_DR));
|
||||
rtclldbg(" CR: %08x\n", getreg32(STM32_RTC_CR));
|
||||
rtclldbg(" ISR: %08x\n", getreg32(STM32_RTC_ISR));
|
||||
rtclldbg(" PRER: %08x\n", getreg32(STM32_RTC_PRER));
|
||||
rtclldbg(" WUTR: %08x\n", getreg32(STM32_RTC_WUTR));
|
||||
rtclldbg(" CALIBR: %08x\n", getreg32(STM32_RTC_CALIBR));
|
||||
rtclldbg(" ALRMAR: %08x\n", getreg32(STM32_RTC_ALRMAR));
|
||||
rtclldbg(" ALRMBR: %08x\n", getreg32(STM32_RTC_ALRMBR));
|
||||
rtclldbg(" SHIFTR: %08x\n", getreg32(STM32_RTC_SHIFTR));
|
||||
rtclldbg(" TSTR: %08x\n", getreg32(STM32_RTC_TSTR));
|
||||
rtclldbg(" TSDR: %08x\n", getreg32(STM32_RTC_TSDR));
|
||||
rtclldbg(" TSSSR: %08x\n", getreg32(STM32_RTC_TSSSR));
|
||||
rtclldbg(" CALR: %08x\n", getreg32(STM32_RTC_CALR));
|
||||
rtclldbg(" TAFCR: %08x\n", getreg32(STM32_RTC_TAFCR));
|
||||
rtclldbg("ALRMASSR: %08x\n", getreg32(STM32_RTC_ALRMASSR));
|
||||
rtclldbg("ALRMBSSR: %08x\n", getreg32(STM32_RTC_ALRMBSSR));
|
||||
rtclldbg(" BK0: %08x\n", getreg32(STM32_RTC_BK0R));
|
||||
}
|
||||
#else
|
||||
# define rtc_dumpregs(msg)
|
||||
#endif
|
||||
|
||||
/************************************************************************************
|
||||
* Name: rtc_dumptime
|
||||
*
|
||||
* Description:
|
||||
* Disable RTC write protection
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value:
|
||||
* None
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#ifdef CONFIG_DEBUG_RTC
|
||||
static void rtc_dumptime(FAR struct tm *tp, FAR const char *msg)
|
||||
{
|
||||
rtclldbg("%s:\n", msg);
|
||||
rtclldbg(" tm_sec: %08x\n", tp->tm_sec);
|
||||
rtclldbg(" tm_min: %08x\n", tp->tm_min);
|
||||
rtclldbg(" tm_hour: %08x\n", tp->tm_hour);
|
||||
rtclldbg(" tm_mday: %08x\n", tp->tm_mday);
|
||||
rtclldbg(" tm_mon: %08x\n", tp->tm_mon);
|
||||
rtclldbg(" tm_year: %08x\n", tp->tm_year);
|
||||
}
|
||||
#else
|
||||
# define rtc_dumptime(tp, msg)
|
||||
#endif
|
||||
|
||||
/************************************************************************************
|
||||
* Name: rtc_wprunlock
|
||||
*
|
||||
* Description:
|
||||
* Disable RTC write protection
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value:
|
||||
* None
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
static void rtc_wprunlock(void)
|
||||
{
|
||||
/* The following steps are required to unlock the write protection on all the
|
||||
* RTC registers (except for RTC_ISR[13:8], RTC_TAFCR, and RTC_BKPxR).
|
||||
*
|
||||
* 1. Write 0xCA into the RTC_WPR register.
|
||||
* 2. Write 0x53 into the RTC_WPR register.
|
||||
*
|
||||
* Writing a wrong key reactivates the write protection.
|
||||
*/
|
||||
|
||||
putreg32(0xca, STM32_RTC_WPR);
|
||||
putreg32(0x53, STM32_RTC_WPR);
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
* Name: rtc_wprunlock
|
||||
*
|
||||
* Description:
|
||||
* Enable RTC write protection
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value:
|
||||
* None
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
static inline void rtc_wprlock(void)
|
||||
{
|
||||
/* Writing any wrong key reactivates the write protection. */
|
||||
|
||||
putreg32(0xff, STM32_RTC_WPR);
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
* Name: rtc_synchwait
|
||||
*
|
||||
* Description:
|
||||
* Waits until the RTC Time and Date registers (RTC_TR and RTC_DR) are
|
||||
* synchronized with RTC APB clock.
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; a negated errno on failure
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
static int rtc_synchwait(void)
|
||||
{
|
||||
volatile uint32_t timeout;
|
||||
uint32_t regval;
|
||||
int ret;
|
||||
|
||||
/* Disable the write protection for RTC registers */
|
||||
|
||||
rtc_wprunlock();
|
||||
|
||||
/* Clear Registers synchronization flag (RSF) */
|
||||
|
||||
regval = getreg32(STM32_RTC_ISR);
|
||||
regval &= ~RTC_ISR_RSF;
|
||||
putreg32(regval, STM32_RTC_ISR);
|
||||
|
||||
/* Now wait the registers to become synchronised */
|
||||
|
||||
ret = -ETIMEDOUT;
|
||||
for (timeout = 0; timeout < SYNCHRO_TIMEOUT; timeout++)
|
||||
{
|
||||
regval = getreg32(STM32_RTC_ISR);
|
||||
if ((regval & RTC_ISR_RSF) != 0)
|
||||
{
|
||||
/* Synchronized */
|
||||
|
||||
ret = OK;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Re-enable the write protection for RTC registers */
|
||||
|
||||
rtc_wprlock();
|
||||
return ret;
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
* Name: rtc_enterinit
|
||||
*
|
||||
* Description:
|
||||
* Enter RTC initialization mode.
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; a negated errno on failure
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
static int rtc_enterinit(void)
|
||||
{
|
||||
volatile uint32_t timeout;
|
||||
uint32_t regval;
|
||||
int ret;
|
||||
|
||||
/* Check if the Initialization mode is already set */
|
||||
|
||||
regval = getreg32(STM32_RTC_ISR);
|
||||
|
||||
ret = OK;
|
||||
if ((regval & RTC_ISR_INITF) == 0)
|
||||
{
|
||||
/* Set the Initialization mode */
|
||||
|
||||
putreg32(RTC_ISR_INIT, STM32_RTC_ISR);
|
||||
|
||||
/* Wait until the RTC is in the INIT state (or a timeout occurs) */
|
||||
|
||||
ret = -ETIMEDOUT;
|
||||
for (timeout = 0; timeout < INITMODE_TIMEOUT; timeout++)
|
||||
{
|
||||
regval = getreg32(STM32_RTC_ISR);
|
||||
if ((regval & RTC_ISR_INITF) != 0)
|
||||
{
|
||||
ret = OK;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
* Name: rtc_exitinit
|
||||
*
|
||||
* Description:
|
||||
* Exit RTC initialization mode.
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; a negated errno on failure
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
static void rtc_exitinit(void)
|
||||
{
|
||||
uint32_t regval;
|
||||
|
||||
regval = getreg32(STM32_RTC_ISR);
|
||||
regval &= ~(RTC_ISR_INIT);
|
||||
putreg32(regval, STM32_RTC_ISR);
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
* Name: rtc_bin2bcd
|
||||
*
|
||||
* Description:
|
||||
* Converts a 2 digit binary to BCD format
|
||||
*
|
||||
* Input Parameters:
|
||||
* value - The byte to be converted.
|
||||
*
|
||||
* Returned Value:
|
||||
* The value in BCD representation
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
static uint32_t rtc_bin2bcd(int value)
|
||||
{
|
||||
uint32_t msbcd = 0;
|
||||
|
||||
while (value >= 10)
|
||||
{
|
||||
msbcd++;
|
||||
value -= 10;
|
||||
}
|
||||
|
||||
return (msbcd << 4) | value;
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
* Name: rtc_bin2bcd
|
||||
*
|
||||
* Description:
|
||||
* Convert from 2 digit BCD to binary.
|
||||
*
|
||||
* Input Parameters:
|
||||
* value - The BCD value to be converted.
|
||||
*
|
||||
* Returned Value:
|
||||
* The value in binary representation
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
static int rtc_bcd2bin(uint32_t value)
|
||||
{
|
||||
uint32_t tens = (value >> 4) * 10;
|
||||
return (int)(tens + (value & 0x0f));
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
* Name: rtc_setup
|
||||
*
|
||||
* Description:
|
||||
* Performs first time configuration of the RTC. A special value written into
|
||||
* back-up register 0 will prevent this function from being called on sub-sequent
|
||||
* resets or power up.
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; a negated errno on failure
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
static int rtc_setup(void)
|
||||
{
|
||||
uint32_t regval;
|
||||
int ret;
|
||||
|
||||
/* Enable the External Low-Speed (LSE) Oscillator setup the LSE as the RTC clock\
|
||||
* source, and enable the RTC.
|
||||
*/
|
||||
|
||||
stm32_rcc_enablelse();
|
||||
|
||||
/* Wait for the RTC Time and Date registers to be synchronized with RTC APB
|
||||
* clock.
|
||||
*/
|
||||
|
||||
ret = rtc_synchwait();
|
||||
if (ret == OK)
|
||||
{
|
||||
/* Disable the write protection for RTC registers */
|
||||
|
||||
rtc_wprunlock();
|
||||
|
||||
/* Set Initialization mode */
|
||||
|
||||
ret = rtc_enterinit();
|
||||
if (ret == OK)
|
||||
{
|
||||
/* Set the 24 hour format by clearing the FMT bit in the RTC
|
||||
* control register
|
||||
*/
|
||||
|
||||
regval = getreg32(STM32_RTC_CR);
|
||||
regval &= ~RTC_CR_FMT;
|
||||
putreg32(regval, STM32_RTC_CR);
|
||||
|
||||
/* Configure RTC pre-scaler to the required, default values for
|
||||
* use with the 32.768 KHz LSE clock:
|
||||
*/
|
||||
|
||||
putreg32(((uint32_t)0xff << RTC_PRER_PREDIV_S_SHIFT) |
|
||||
((uint32_t)0x7f << RTC_PRER_PREDIV_A_SHIFT),
|
||||
STM32_RTC_PRER);
|
||||
|
||||
/* Exit RTC initialization mode */
|
||||
|
||||
rtc_exitinit();
|
||||
}
|
||||
|
||||
/* Re-enable the write protection for RTC registers */
|
||||
|
||||
rtc_wprlock();
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
* Name: rtc_resume
|
||||
*
|
||||
* Description:
|
||||
* Called when the RTC was already initialized on a previous power cycle. This
|
||||
* just brings the RTC back into full operation.
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; a negated errno on failure
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
static int rtc_resume(void)
|
||||
{
|
||||
#ifdef CONFIG_RTC_ALARM
|
||||
uint32_t regval;
|
||||
#endif
|
||||
int ret;
|
||||
|
||||
/* Wait for the RTC Time and Date registers to be syncrhonized with RTC APB
|
||||
* clock.
|
||||
*/
|
||||
|
||||
ret = rtc_synchwait();
|
||||
|
||||
/* Clear the RTC alarm flags */
|
||||
|
||||
#ifdef CONFIG_RTC_ALARM
|
||||
regval = getreg32(STM32_RTC_ISR);
|
||||
regval &= ~(RTC_ISR_ALRAF|RTC_ISR_ALRBF);
|
||||
putreg32(regval, STM32_RTC_ISR);
|
||||
|
||||
/* Clear the EXTI Line 17 Pending bit (Connected internally to RTC Alarm) */
|
||||
|
||||
putreg32((1 << 17), STM32_EXTI_PR);
|
||||
#endif
|
||||
return ret;
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
* Name: rtc_interrupt
|
||||
*
|
||||
* Description:
|
||||
* RTC interrupt service routine
|
||||
*
|
||||
* Input Parameters:
|
||||
* irq - The IRQ number that generated the interrupt
|
||||
* context - Architecture specific register save information.
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; A negated errno value on failure.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#if CONFIG_RTC_ALARM
|
||||
static int rtc_interrupt(int irq, void *context)
|
||||
{
|
||||
#warning "Missing logic"
|
||||
return OK;
|
||||
}
|
||||
#endif
|
||||
|
||||
/************************************************************************************
|
||||
* Public Functions
|
||||
************************************************************************************/
|
||||
|
||||
/************************************************************************************
|
||||
* Name: up_rtcinitialize
|
||||
*
|
||||
* Description:
|
||||
* Initialize the hardware RTC per the selected configuration. This function is
|
||||
* called once during the OS initialization sequence
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; a negated errno on failure
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
int up_rtcinitialize(void)
|
||||
{
|
||||
uint32_t regval;
|
||||
int ret;
|
||||
|
||||
rtc_dumpregs("On reset");
|
||||
|
||||
/* Clocking for the PWR block must be provided. However, this is done
|
||||
* unconditionally in stm32f40xxx_rcc.c on power up. This done unconditionally
|
||||
* because the PWR block is also needed to set the internal voltage regulator for
|
||||
* maximum performance.
|
||||
*/
|
||||
|
||||
/* Enable access to the backup domain (RTC registers, RTC backup data registers
|
||||
* and backup SRAM).
|
||||
*/
|
||||
|
||||
stm32_pwr_enablebkp();
|
||||
|
||||
/* Check if the one-time initialization of the RTC has already been performed.
|
||||
* We can determine this by checking if the magic number has been writing to
|
||||
* to back-up date register DR0.
|
||||
*/
|
||||
|
||||
regval = getreg32(STM32_RTC_BK0R);
|
||||
if (regval != RTC_MAGIC)
|
||||
{
|
||||
/* Perform the one-time setup of the LSE clocking to the RTC */
|
||||
|
||||
ret = rtc_setup();
|
||||
|
||||
/* Remember that the RTC is initialized */
|
||||
|
||||
putreg32(RTC_MAGIC, STM32_RTC_BK0R);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* RTC already set-up, just resume normal operation */
|
||||
|
||||
ret = rtc_resume();
|
||||
}
|
||||
|
||||
/* Configure RTC interrupt to catch alarm interrupts. All RTC interrupts are
|
||||
* connected to the EXTI controller. To enable the RTC Alarm interrupt, the
|
||||
* following sequence is required:
|
||||
*
|
||||
* 1. Configure and enable the EXTI Line 17 in interrupt mode and select the
|
||||
* rising edge sensitivity.
|
||||
* 2. Configure and enable the RTC_Alarm IRQ channel in the NVIC.
|
||||
* 3. Configure the RTC to generate RTC alarms (Alarm A or Alarm B).
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_RTC_ALARM
|
||||
# warning "Missing EXTI setup logic"
|
||||
|
||||
/* Then attach the ALARM interrupt handler */
|
||||
|
||||
irq_attach(STM32_IRQ_RTC, rtc_interrupt);
|
||||
up_enable_irq(STM32_IRQ_RTC);
|
||||
#endif
|
||||
|
||||
g_rtc_enabled = true;
|
||||
rtc_dumpregs("After Initialzation");
|
||||
return OK;
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
* Name: up_rtc_getdatetime
|
||||
*
|
||||
* Description:
|
||||
* Get the current date and time from the date/time RTC. This interface
|
||||
* is only supported by the date/time RTC hardware implementation.
|
||||
* It is used to replace the system timer. It is only used by the RTOS during
|
||||
* intialization to set up the system time when CONFIG_RTC and CONFIG_RTC_DATETIME
|
||||
* are selected (and CONFIG_RTC_HIRES is not).
|
||||
*
|
||||
* NOTE: Some date/time RTC hardware is capability of sub-second accuracy. That
|
||||
* sub-second accuracy is lost in this interface. However, since the system time
|
||||
* is reinitialized on each power-up/reset, there will be no timing inaccuracy in
|
||||
* the long run.
|
||||
*
|
||||
* Input Parameters:
|
||||
* tp - The location to return the high resolution time value.
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; a negated errno on failure
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
int up_rtc_getdatetime(FAR struct tm *tp)
|
||||
{
|
||||
uint32_t dr;
|
||||
uint32_t tr;
|
||||
uint32_t tmp;
|
||||
|
||||
/* Sample the data time registers. There is a race condition here... If we sample
|
||||
* the time just before midnight on December 31, the date could be wrong because
|
||||
* the day rolled over while were sampling.
|
||||
*/
|
||||
|
||||
do
|
||||
{
|
||||
dr = getreg32(STM32_RTC_DR);
|
||||
tr = getreg32(STM32_RTC_TR);
|
||||
tmp = getreg32(STM32_RTC_DR);
|
||||
}
|
||||
while (tmp != dr);
|
||||
|
||||
rtc_dumpregs("Reading Time");
|
||||
|
||||
/* Convert the RTC time to fields in struct tm format. All of the STM32
|
||||
* All of the ranges of values correspond between struct tm and the time
|
||||
* register.
|
||||
*/
|
||||
|
||||
tmp = (tr & (RTC_TR_SU_MASK|RTC_TR_ST_MASK)) >> RTC_TR_SU_SHIFT;
|
||||
tp->tm_sec = rtc_bcd2bin(tmp);
|
||||
|
||||
tmp = (tr & (RTC_TR_MNU_MASK|RTC_TR_MNT_MASK)) >> RTC_TR_MNU_SHIFT;
|
||||
tp->tm_min = rtc_bcd2bin(tmp);
|
||||
|
||||
tmp = (tr & (RTC_TR_HU_MASK|RTC_TR_HT_MASK)) >> RTC_TR_HU_SHIFT;
|
||||
tp->tm_hour = rtc_bcd2bin(tmp);
|
||||
|
||||
/* Now convert the RTC date to fields in struct tm format:
|
||||
* Days: 1-31 match in both cases.
|
||||
* Month: STM32 is 1-12, struct tm is 0-11.
|
||||
* Years: STM32 is 00-99, struct tm is years since 1900.
|
||||
*
|
||||
* Issue: I am not sure what the STM32 years mean. Are these the
|
||||
* years 2000-2099? I'll assume so.
|
||||
*/
|
||||
|
||||
tmp = (dr & (RTC_DR_DU_MASK|RTC_DR_DT_MASK)) >> RTC_DR_DU_SHIFT;
|
||||
tp->tm_mday = rtc_bcd2bin(tmp);
|
||||
|
||||
tmp = (dr & (RTC_DR_MU_MASK|RTC_DR_MT)) >> RTC_DR_MU_SHIFT;
|
||||
tp->tm_mon = rtc_bcd2bin(tmp) - 1;
|
||||
|
||||
tmp = (dr & (RTC_DR_YU_MASK|RTC_DR_YT_MASK)) >> RTC_DR_YU_SHIFT;
|
||||
tp->tm_year = rtc_bcd2bin(tmp) + 100;
|
||||
|
||||
rtc_dumptime(tp, "Returning");
|
||||
return OK;
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
* Name: up_rtc_settime
|
||||
*
|
||||
* Description:
|
||||
* Set the RTC to the provided time. All RTC implementations must be able to
|
||||
* set their time based on a standard timespec.
|
||||
*
|
||||
* Input Parameters:
|
||||
* tp - the time to use
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; a negated errno on failure
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
int up_rtc_settime(FAR const struct timespec *tp)
|
||||
{
|
||||
FAR struct tm newtime;
|
||||
uint32_t tr;
|
||||
uint32_t dr;
|
||||
int ret;
|
||||
|
||||
/* Break out the time values (not that the time is set only to units of seconds) */
|
||||
|
||||
(void)gmtime_r(&tp->tv_sec, &newtime);
|
||||
rtc_dumptime(&newtime, "Setting time");
|
||||
|
||||
/* Then write the broken out values to the RTC */
|
||||
|
||||
/* Convert the struct tm format to RTC time register fields. All of the STM32
|
||||
* All of the ranges of values correspond between struct tm and the time
|
||||
* register.
|
||||
*/
|
||||
|
||||
tr = (rtc_bin2bcd(newtime.tm_sec) << RTC_TR_SU_SHIFT) |
|
||||
(rtc_bin2bcd(newtime.tm_min) << RTC_TR_MNU_SHIFT) |
|
||||
(rtc_bin2bcd(newtime.tm_hour) << RTC_TR_HU_SHIFT);
|
||||
tr &= ~RTC_TR_RESERVED_BITS;
|
||||
|
||||
/* Now convert the fields in struct tm format to the RTC date register fields:
|
||||
* Days: 1-31 match in both cases.
|
||||
* Month: STM32 is 1-12, struct tm is 0-11.
|
||||
* Years: STM32 is 00-99, struct tm is years since 1900.
|
||||
*
|
||||
* Issue: I am not sure what the STM32 years mean. Are these the
|
||||
* years 2000-2099? I'll assume so.
|
||||
*/
|
||||
|
||||
dr = (rtc_bin2bcd(newtime.tm_mday) << RTC_DR_DU_SHIFT) |
|
||||
((rtc_bin2bcd(newtime.tm_mon + 1)) << RTC_DR_MU_SHIFT) |
|
||||
((rtc_bin2bcd(newtime.tm_year - 100)) << RTC_DR_YU_SHIFT);
|
||||
dr &= ~RTC_DR_RESERVED_BITS;
|
||||
|
||||
/* Disable the write protection for RTC registers */
|
||||
|
||||
rtc_wprunlock();
|
||||
|
||||
/* Set Initialization mode */
|
||||
|
||||
ret = rtc_enterinit();
|
||||
if (ret == OK)
|
||||
{
|
||||
/* Set the RTC TR and DR registers */
|
||||
|
||||
putreg32(tr, STM32_RTC_TR);
|
||||
putreg32(dr, STM32_RTC_DR);
|
||||
|
||||
/* Exit Initialization mode and wait for the RTC Time and Date
|
||||
* registers to be synchronized with RTC APB clock.
|
||||
*/
|
||||
|
||||
rtc_exitinit();
|
||||
ret = rtc_synchwait();
|
||||
}
|
||||
|
||||
/* Re-enable the write protection for RTC registers */
|
||||
|
||||
rtc_wprlock();
|
||||
rtc_dumpregs("New time setting");
|
||||
return ret;
|
||||
}
|
||||
|
||||
/************************************************************************************
|
||||
* Name: up_rtc_setalarm
|
||||
*
|
||||
* Description:
|
||||
* Set up an alarm. Up to two alarms can be supported (ALARM A and ALARM B).
|
||||
*
|
||||
* Input Parameters:
|
||||
* tp - the time to set the alarm
|
||||
* callback - the function to call when the alarm expires.
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero (OK) on success; a negated errno on failure
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#ifdef CONFIG_RTC_ALARM
|
||||
int up_rtc_setalarm(FAR const struct timespec *tp, alarmcb_t callback);
|
||||
{
|
||||
irqstate_t flags;
|
||||
int ret = -EBUSY;
|
||||
|
||||
/* Is there already something waiting on the ALARM? */
|
||||
|
||||
if (g_alarmcb == NULL)
|
||||
{
|
||||
/* No.. Save the callback function pointer */
|
||||
|
||||
g_alarmcb = callback;
|
||||
|
||||
/* Break out the time values */
|
||||
#warning "Missing logic"
|
||||
|
||||
/* The set the alarm */
|
||||
#warning "Missing logic"
|
||||
|
||||
ret = OK;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* CONFIG_RTC */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user