diff options
author | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2012-07-17 00:22:48 +0000 |
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committer | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2012-07-17 00:22:48 +0000 |
commit | e5455995a689242ff0e3908794c0ff75f8f8534c (patch) | |
tree | 996b328de328682d3616d9b23149b2b9f28b5021 /nuttx | |
parent | 919354a96af7210fad0a77355c447eca823231e3 (diff) | |
download | px4-firmware-e5455995a689242ff0e3908794c0ff75f8f8534c.tar.gz px4-firmware-e5455995a689242ff0e3908794c0ff75f8f8534c.tar.bz2 px4-firmware-e5455995a689242ff0e3908794c0ff75f8f8534c.zip |
STM32: Add logic to attach the RTC alarm EXTI interrupt
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4947 7fd9a85b-ad96-42d3-883c-3090e2eb8679
Diffstat (limited to 'nuttx')
-rw-r--r-- | nuttx/ChangeLog | 9 | ||||
-rw-r--r-- | nuttx/arch/arm/src/stm32/Make.defs | 5 | ||||
-rw-r--r--[-rwxr-xr-x] | nuttx/arch/arm/src/stm32/stm32_can.c | 0 | ||||
-rw-r--r--[-rwxr-xr-x] | nuttx/arch/arm/src/stm32/stm32_eth.c | 0 | ||||
-rw-r--r-- | nuttx/arch/arm/src/stm32/stm32_exti.h | 77 | ||||
-rw-r--r-- | nuttx/arch/arm/src/stm32/stm32_exti_alarm.c | 167 | ||||
-rw-r--r-- | nuttx/arch/arm/src/stm32/stm32_exti_gpio.c (renamed from nuttx/arch/arm/src/stm32/stm32_exti.c) | 33 | ||||
-rw-r--r-- | nuttx/arch/arm/src/stm32/stm32_gpio.h | 25 | ||||
-rw-r--r--[-rwxr-xr-x] | nuttx/arch/arm/src/stm32/stm32_otgfsdev.c | 0 | ||||
-rw-r--r-- | nuttx/configs/stm3210e-eval/src/up_idle.c | 8 |
10 files changed, 301 insertions, 23 deletions
diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog index f95f9d81a..c0f7ba653 100644 --- a/nuttx/ChangeLog +++ b/nuttx/ChangeLog @@ -3008,4 +3008,11 @@ * arch/arm/src/lpc43xx/lpc43_clockconfig.c and configs/lpc4330-xplorer/include/board.h: Implement PLL1 ramp-up logic; Now the LPC43xx is running at 204MHz. * configs/lpc4330-xplorer/*/defconfig: Re-calibrated delay loops using - the 204MHz clock. The LPC43xx ripping rips! + the 204MHz clock. The LPC43xx ripping rips! This calibration was performed + with symbols enabled and all optimization disabled. It will need to be + better recalibrated again down the road. + * arch/arm/src/stm32/stm32_exti.c: Renamed to rch/arm/src/stm32/stm32_exti_gpio.c + to make a little room in the file name space. + * arch/arm/src/stm32/stm32_exti_alarm.c: Add initial logic to attached the + RTC alarm EXTI interrupt. This is work be performed mostly by Diego Sanchez. + diff --git a/nuttx/arch/arm/src/stm32/Make.defs b/nuttx/arch/arm/src/stm32/Make.defs index cff2546ee..0493630b9 100644 --- a/nuttx/arch/arm/src/stm32/Make.defs +++ b/nuttx/arch/arm/src/stm32/Make.defs @@ -63,7 +63,7 @@ endif CHIP_ASRCS = CHIP_CSRCS = stm32_allocateheap.c stm32_start.c stm32_rcc.c stm32_lse.c \ - stm32_lsi.c stm32_gpio.c stm32_exti.c stm32_flash.c stm32_irq.c \ + stm32_lsi.c stm32_gpio.c stm32_exti_gpio.c stm32_flash.c stm32_irq.c \ stm32_timerisr.c stm32_dma.c stm32_lowputc.c stm32_serial.c \ stm32_spi.c stm32_sdio.c stm32_tim.c stm32_i2c.c stm32_waste.c @@ -100,6 +100,9 @@ endif ifeq ($(CONFIG_RTC),y) CHIP_CSRCS += stm32_rtc.c +ifeq ($(CONFIG_RTC_ALARM),y) +CHIP_CSRCS += stm32_exti_alarm.c +endif endif ifeq ($(CONFIG_ADC),y) diff --git a/nuttx/arch/arm/src/stm32/stm32_can.c b/nuttx/arch/arm/src/stm32/stm32_can.c index 7e65ecfc8..7e65ecfc8 100755..100644 --- a/nuttx/arch/arm/src/stm32/stm32_can.c +++ b/nuttx/arch/arm/src/stm32/stm32_can.c diff --git a/nuttx/arch/arm/src/stm32/stm32_eth.c b/nuttx/arch/arm/src/stm32/stm32_eth.c index 68ee78fd5..68ee78fd5 100755..100644 --- a/nuttx/arch/arm/src/stm32/stm32_eth.c +++ b/nuttx/arch/arm/src/stm32/stm32_eth.c diff --git a/nuttx/arch/arm/src/stm32/stm32_exti.h b/nuttx/arch/arm/src/stm32/stm32_exti.h index 8221ccb2d..563e7a91b 100644 --- a/nuttx/arch/arm/src/stm32/stm32_exti.h +++ b/nuttx/arch/arm/src/stm32/stm32_exti.h @@ -1,8 +1,8 @@ /************************************************************************************ * arch/arm/src/stm32/stm32_exti.h * - * Copyright (C) 2009 Gregory Nutt. All rights reserved. - * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * Copyright (C) 2009, 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 @@ -36,9 +36,82 @@ #ifndef __ARCH_ARM_SRC_STM32_STM32_EXTI_H #define __ARCH_ARM_SRC_STM32_STM32_EXTI_H +/************************************************************************************ + * Included Files + ************************************************************************************/ + #include <nuttx/config.h> #include "chip.h" #include "chip/stm32_exti.h" +/************************************************************************************ + * Public Data + ************************************************************************************/ + +#ifndef __ASSEMBLY__ + +#undef EXTERN +#if defined(__cplusplus) +#define EXTERN extern "C" +extern "C" { +#else +#define EXTERN extern +#endif + +/************************************************************************************ + * Public Function Prototypes + ************************************************************************************/ + +/************************************************************************************ + * Name: stm32_gpiosetevent + * + * Description: + * Sets/clears GPIO based event and interrupt triggers. + * + * Parameters: + * - pinset: gpio pin configuration + * - rising/falling edge: enables + * - event: generate event when set + * - func: when non-NULL, generate interrupt + * + * Returns: + * The previous value of the interrupt handler function pointer. This value may, + * for example, be used to restore the previous handler when multiple handlers are + * used. + * + ************************************************************************************/ + +EXTERN xcpt_t stm32_gpiosetevent(uint32_t pinset, bool risingedge, bool fallingedge, + bool event, xcpt_t func); + +/**************************************************************************** + * Name: stm32_exti_alarm + * + * Description: + * Sets/clears EXTI alarm interrupt. + * + * Parameters: + * - rising/falling edge: enables interrupt on rising/falling edget + * - event: generate event when set + * - func: when non-NULL, generate interrupt + * + * Returns: + * The previous value of the interrupt handler function pointer. This + * value may, for example, be used to restore the previous handler when + * multiple handlers are used. + * + ****************************************************************************/ + +#ifdef CONFIG_RTC_ALARM +EXTERN xcpt_t stm32_exti_alarm(bool risingedge, bool fallingedge, bool event, + xcpt_t func); +#endif + +#undef EXTERN +#if defined(__cplusplus) +} +#endif + +#endif /* __ASSEMBLY__ */ #endif /* __ARCH_ARM_SRC_STM32_STM32_EXTI_H */ diff --git a/nuttx/arch/arm/src/stm32/stm32_exti_alarm.c b/nuttx/arch/arm/src/stm32/stm32_exti_alarm.c new file mode 100644 index 000000000..fbffdc4dd --- /dev/null +++ b/nuttx/arch/arm/src/stm32/stm32_exti_alarm.c @@ -0,0 +1,167 @@ +/**************************************************************************** + * arch/arm/src/stm32/stm32_exti_alarm.c + * + * Copyright (C) 2009, 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * Diego Sanchez <dsanchez@nx-engineering.com> + * + * 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/irq.h> +#include <nuttx/arch.h> + +#include <stdint.h> +#include <stdbool.h> +#include <errno.h> + +#include <arch/irq.h> + +#include "up_arch.h" +#include "chip.h" +#include "stm32_gpio.h" +#include "stm32_exti.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/* Interrupt handlers attached to the ALARM EXTI */ + +static xcpt_t stm32_exti_callback; + +/**************************************************************************** + * Public Data + ****************************************************************************/ + + /**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: stm32_exti_alarm_isr + * + * Description: + * EXTI ALRAM interrupt service routine/dispatcher + * + ****************************************************************************/ + +static int stm32_exti_alarm_isr(int irq, void *context) +{ + int ret = OK; + + /* Clear the pending EXTI interrupt */ + + putreg32(EXTI_RTC_ALARM, STM32_EXTI_PR); + + /* And dispatch the interrupt to the handler */ + + if (stm32_exti_callback) + { + ret = stm32_exti_callback(irq, context); + } + + return ret; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: stm32_exti_alarm + * + * Description: + * Sets/clears EXTI alarm interrupt. + * + * Parameters: + * - rising/falling edge: enables interrupt on rising/falling edget + * - event: generate event when set + * - func: when non-NULL, generate interrupt + * + * Returns: + * The previous value of the interrupt handler function pointer. This + * value may, for example, be used to restore the previous handler when + * multiple handlers are used. + * + ****************************************************************************/ + +xcpt_t stm32_exti_alarm(bool risingedge, bool fallingedge, bool event, + xcpt_t func) +{ + xcpt_t oldhandler; + + /* Get the previous GPIO IRQ handler; Save the new IRQ handler. */ + + oldhandler = stm32_exti_callback; + stm32_exti_callback = func; + + /* Install external interrupt handlers (if not already attached) */ + + if (func) + { + irq_attach(STM32_IRQ_RTCALRM, stm32_exti_alarm_isr); + up_enable_irq(STM32_IRQ_RTCALRM); + } + else + { + up_disable_irq(STM32_IRQ_RTCALRM); + } + + /* Configure rising/falling edges */ + + modifyreg32(STM32_EXTI_RTSR, + risingedge ? 0 : EXTI_RTC_ALARM, + risingedge ? EXTI_RTC_ALARM : 0); + modifyreg32(STM32_EXTI_FTSR, + fallingedge ? 0 : EXTI_RTC_ALARM, + fallingedge ? EXTI_RTC_ALARM : 0); + + /* Enable Events and Interrupts */ + + modifyreg32(STM32_EXTI_EMR, + event ? 0 : EXTI_RTC_ALARM, + event ? EXTI_RTC_ALARM : 0); + modifyreg32(STM32_EXTI_IMR, + func ? 0 : EXTI_RTC_ALARM, + func ? EXTI_RTC_ALARM : 0); + + /* Return the old IRQ handler */ + + return oldhandler; +}
\ No newline at end of file diff --git a/nuttx/arch/arm/src/stm32/stm32_exti.c b/nuttx/arch/arm/src/stm32/stm32_exti_gpio.c index a9fe78bb0..f897691ef 100644 --- a/nuttx/arch/arm/src/stm32/stm32_exti.c +++ b/nuttx/arch/arm/src/stm32/stm32_exti_gpio.c @@ -1,5 +1,5 @@ /**************************************************************************** - * arch/arm/src/stm32/stm32_exti.c + * arch/arm/src/stm32/stm32_exti_gpio.c * * Copyright (C) 2009, 2011-2012 Gregory Nutt. All rights reserved. * Copyright (C) 2011 Uros Platise. All rights reserved. @@ -58,6 +58,7 @@ /**************************************************************************** * Private Data ****************************************************************************/ + /* Interrupt handlers attached to each EXTI */ static xcpt_t stm32_exti_callbacks[16]; @@ -88,6 +89,7 @@ static int stm32_exti0_isr(int irq, void *context) { ret = stm32_exti_callbacks[0](irq, context); } + return ret; } @@ -105,6 +107,7 @@ static int stm32_exti1_isr(int irq, void *context) { ret = stm32_exti_callbacks[1](irq, context); } + return ret; } @@ -122,6 +125,7 @@ static int stm32_exti2_isr(int irq, void *context) { ret = stm32_exti_callbacks[2](irq, context); } + return ret; } @@ -139,6 +143,7 @@ static int stm32_exti3_isr(int irq, void *context) { ret = stm32_exti_callbacks[3](irq, context); } + return ret; } @@ -156,6 +161,7 @@ static int stm32_exti4_isr(int irq, void *context) { ret = stm32_exti_callbacks[4](irq, context); } + return ret; } @@ -194,6 +200,7 @@ static int stm32_exti_multiisr(int irq, void *context, int first, int last) } } } + return ret; } @@ -249,15 +256,19 @@ xcpt_t stm32_gpiosetevent(uint32_t pinset, bool risingedge, bool fallingedge, case 0: handler = stm32_exti0_isr; break; + case 1: handler = stm32_exti1_isr; break; + case 2: handler = stm32_exti2_isr; break; + case 3: handler = stm32_exti3_isr; break; + default: handler = stm32_exti4_isr; break; @@ -291,7 +302,9 @@ xcpt_t stm32_gpiosetevent(uint32_t pinset, bool risingedge, bool fallingedge, up_disable_irq(irq); } - /* Configure GPIO, enable EXTI line enabled if event or interrupt is enabled */ + /* Configure GPIO, enable EXTI line enabled if event or interrupt is + * enabled. + */ if (event || func) { @@ -302,13 +315,21 @@ xcpt_t stm32_gpiosetevent(uint32_t pinset, bool risingedge, bool fallingedge, /* Configure rising/falling edges */ - modifyreg32(STM32_EXTI_RTSR, risingedge ? 0 : exti, risingedge ? exti : 0); - modifyreg32(STM32_EXTI_FTSR, fallingedge ? 0 : exti, fallingedge ? exti : 0); + modifyreg32(STM32_EXTI_RTSR, + risingedge ? 0 : exti, + risingedge ? exti : 0); + modifyreg32(STM32_EXTI_FTSR, + fallingedge ? 0 : exti, + fallingedge ? exti : 0); /* Enable Events and Interrupts */ - modifyreg32(STM32_EXTI_EMR, event ? 0 : exti, event ? exti : 0); - modifyreg32(STM32_EXTI_IMR, func ? 0 : exti, func ? exti : 0); + modifyreg32(STM32_EXTI_EMR, + event ? 0 : exti, + event ? exti : 0); + modifyreg32(STM32_EXTI_IMR, + func ? 0 : exti, + func ? exti : 0); /* Return the old IRQ handler */ diff --git a/nuttx/arch/arm/src/stm32/stm32_gpio.h b/nuttx/arch/arm/src/stm32/stm32_gpio.h index 07559b17a..34623c525 100644 --- a/nuttx/arch/arm/src/stm32/stm32_gpio.h +++ b/nuttx/arch/arm/src/stm32/stm32_gpio.h @@ -67,16 +67,6 @@ * Pre-Processor Declarations ************************************************************************************/ -#ifndef __ASSEMBLY__ - -#undef EXTERN -#if defined(__cplusplus) -#define EXTERN extern "C" -extern "C" { -#else -#define EXTERN extern -#endif - /* Bit-encoded input to stm32_configgpio() */ #if defined(CONFIG_STM32_STM32F10XX) @@ -390,9 +380,19 @@ extern "C" { * Public Data ************************************************************************************/ +#ifndef __ASSEMBLY__ + +#undef EXTERN +#if defined(__cplusplus) +#define EXTERN extern "C" +extern "C" { +#else +#define EXTERN extern +#endif + /* Base addresses for each GPIO block */ -extern const uint32_t g_gpiobase[STM32_NGPIO_PORTS]; +EXTERN const uint32_t g_gpiobase[STM32_NGPIO_PORTS]; /************************************************************************************ * Public Function Prototypes @@ -499,7 +499,8 @@ EXTERN int stm32_dumpgpio(uint32_t pinset, const char *msg); * Based on configuration within the .config file, it does: * - Remaps positions of alternative functions. * - * Typically called from stm32_start(). + * Typically called from stm32_start(). + * ************************************************************************************/ EXTERN void stm32_gpioinit(void); diff --git a/nuttx/arch/arm/src/stm32/stm32_otgfsdev.c b/nuttx/arch/arm/src/stm32/stm32_otgfsdev.c index 39c40d80a..39c40d80a 100755..100644 --- a/nuttx/arch/arm/src/stm32/stm32_otgfsdev.c +++ b/nuttx/arch/arm/src/stm32/stm32_otgfsdev.c diff --git a/nuttx/configs/stm3210e-eval/src/up_idle.c b/nuttx/configs/stm3210e-eval/src/up_idle.c index bc5be2bdc..2b92f9c5e 100644 --- a/nuttx/configs/stm3210e-eval/src/up_idle.c +++ b/nuttx/configs/stm3210e-eval/src/up_idle.c @@ -51,9 +51,11 @@ #include <nuttx/rtc.h> #include <arch/irq.h> +#include "up_internal.h" #include "stm32_pm.h" #include "stm32_rcc.h" -#include "up_internal.h" +#include "stm32_exti.h" + #include "stm3210e-internal.h" /**************************************************************************** @@ -156,6 +158,10 @@ static void up_idlepm(void) case PM_STANDBY: { #ifdef CONFIG_RTC_ALARM + /* Disable RTC Alarm interrupt */ + + stm32_exti_alarm(true, true, true, NULL); + /* Configure the RTC alarm to Auto Wake the system */ (void)up_rtc_gettime(&alarmtime); |