forked from Archive/PX4-Autopilot
Add hooks to support STM32 power management
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4490 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
parent
16f7ec20bd
commit
8c4a5d2149
|
|
@ -2571,3 +2571,5 @@
|
|||
NSH command ifconfig over Telnet. In that case the function netdev_foreach
|
||||
takes the network device semaphore, but so does the telnet logic causing
|
||||
the deadlock.
|
||||
* arch/arm/src/stm32/stm32_pm*.c: Add basic STM32 power management logic
|
||||
that will eventually be used to implement low power states.
|
||||
|
|
|
|||
11
nuttx/TODO
11
nuttx/TODO
|
|
@ -1256,11 +1256,14 @@ o 8051 / MCS51 (arch/8051/)
|
|||
o MIPS (arch/mips)
|
||||
^^^^^^^^^^^^^^^^
|
||||
|
||||
Title: PIC32MX USB DRIVER UNTESTED
|
||||
Description: A USB device-side driver has been written for the PIC3MX,
|
||||
is completely untested as of this writing.
|
||||
Title: PIC32MX USB MASS STORAGE
|
||||
Description: A USB device-side driver has been written for the PIC3MX and
|
||||
is partially tested. It does not, however, seem to work with the
|
||||
mass storage device. This is probably due to errors in how endpoint
|
||||
stalls are handled since the mass storage protocol depends on stalls
|
||||
to indicate the end-of-data.
|
||||
Status: Open
|
||||
Priority: Low -- unless you need a USB device-side driver.
|
||||
Priority: Medium
|
||||
|
||||
o Hitachi/Renesas SH-1 (arch/sh/src/sh1)
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
|
|
|||
|
|
@ -433,6 +433,15 @@
|
|||
#define NVIC_INTCTRL_VECTACTIVE_SHIFT 0 /* Bits 8-0: Active ISR number */
|
||||
#define NVIC_INTCTRL_VECTACTIVE_MASK (0x1ff << NVIC_INTCTRL_VECTACTIVE_SHIFT)
|
||||
|
||||
/* System control register (SYSCON) */
|
||||
|
||||
/* Bit 0: Reserved */
|
||||
#define NVIC_SYSCON_SLEEPONEXIT (1 << 1) /* Bit 1: Sleep-on-exit (returning from Handler to Thread mode) */
|
||||
#define NVIC_SYSCON_SLEEPDEEP (1 << 2) /* Bit 2: Use deep sleep in low power mode */
|
||||
/* Bit 3: Reserved */
|
||||
#define NVIC_SYSCON_SEVONPEND (1 << 4) /* Bit 4: Send Event on Pending bit */
|
||||
/* Bits 5-31: Reserved */
|
||||
|
||||
/* System handler 4-7 priority register */
|
||||
|
||||
#define NVIC_SYSH_PRIORITY_PR4_SHIFT 0
|
||||
|
|
|
|||
|
|
@ -126,6 +126,16 @@ void up_initialize(void)
|
|||
|
||||
up_irqinitialize();
|
||||
|
||||
/* Initialize the power management subsystem. This MCU-specific function
|
||||
* must be called *very* early in the intialization sequence *before* any
|
||||
* other device drivers are initialized (since they may attempt to register
|
||||
* with the power management subsystem).
|
||||
*/
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
up_pminitialize();
|
||||
#endif
|
||||
|
||||
/* Initialize the DMA subsystem if the weak function stm32_dmainitialize has been
|
||||
* brought into the build
|
||||
*/
|
||||
|
|
|
|||
|
|
@ -229,6 +229,14 @@ extern void up_switchcontext(uint32_t *saveregs, uint32_t *restoreregs);
|
|||
|
||||
extern void up_sigdeliver(void);
|
||||
|
||||
/* Power management *********************************************************/
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
extern void up_pminitialize(void);
|
||||
#else
|
||||
# define up_pminitialize()
|
||||
#endif
|
||||
|
||||
/* Interrupt handling *******************************************************/
|
||||
|
||||
extern void up_irqinitialize(void);
|
||||
|
|
|
|||
|
|
@ -76,6 +76,10 @@ ifneq ($(CONFIG_IDLE_CUSTOM),y)
|
|||
CHIP_CSRCS += stm32_idle.c
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_PM),y)
|
||||
CHIP_CSRCS += stm32_pminitialize.c stm32_pmstop.c stm32_pmstandby.c
|
||||
endif
|
||||
|
||||
ifeq ($(CONFIG_STM32_ETHMAC),y)
|
||||
CHIP_CSRCS += stm32_eth.c
|
||||
endif
|
||||
|
|
|
|||
|
|
@ -1,7 +1,7 @@
|
|||
/************************************************************************************
|
||||
* arch/arm/src/stm32/chip/stm32_pwr.h
|
||||
*
|
||||
* Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
|
||||
* Copyright (C) 2009, 2011-2012 Gregory Nutt. All rights reserved.
|
||||
* Author: Gregory Nutt <gnutt@nuttx.org>
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
|
|
|
|||
|
|
@ -0,0 +1,137 @@
|
|||
/************************************************************************************
|
||||
* arch/arm/src/stm32/stm32_pm.h
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
************************************************************************************/
|
||||
|
||||
#ifndef __ARCH_ARM_SRC_STM32_STM32_PM_H
|
||||
#define __ARCH_ARM_SRC_STM32_STM32_PM_H
|
||||
|
||||
/****************************************************************************
|
||||
* Included Files
|
||||
****************************************************************************/
|
||||
|
||||
#include <nuttx/config.h>
|
||||
|
||||
#include <stdbool.h>
|
||||
#include <semaphore.h>
|
||||
|
||||
#include "chip.h"
|
||||
#include "up_internal.h"
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Types
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
#ifdef __cplusplus
|
||||
#define EXTERN extern "C"
|
||||
extern "C" {
|
||||
#else
|
||||
#define EXTERN extern
|
||||
#endif
|
||||
|
||||
/* Before any power state transition is made, the caller should hold this
|
||||
* semaphore to assure that there are no concurrent, contradictory power
|
||||
* state activities.
|
||||
*/
|
||||
|
||||
EXTERN sem_t g_pmsem;
|
||||
|
||||
/****************************************************************************
|
||||
* Public Function Prototypes
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: stm32_pmstop
|
||||
*
|
||||
* Description:
|
||||
* Enter STOP mode.
|
||||
*
|
||||
* Input Parameters:
|
||||
* lpds - true: To further reduce power consumption in Stop mode, put the
|
||||
* internal voltage regulator in low-power mode using the LPDS bit
|
||||
* of the Power control register (PWR_CR).
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero means that the STOP was successfully entered and the system has
|
||||
* been re-awakened. The internal volatage regulator is back to its
|
||||
* original state. Otherwise, STOP mode did not occur and a negated
|
||||
* errno value is returned to indicate the cause of the failure.
|
||||
*
|
||||
* Assumptions:
|
||||
* The caller holds the PM semaphore (g_pmsem).
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
EXTERN int stm32_pmstop(bool lpds);
|
||||
|
||||
/****************************************************************************
|
||||
* Name: stm32_pmstandby
|
||||
*
|
||||
* Description:
|
||||
* Enter STANDBY mode.
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value.
|
||||
* On success, this function will not return (STANDBY mode can only be
|
||||
* terminated with a reset event). Otherwise, STANDBY mode did not occur
|
||||
* and a negated errno value is returned to indicate the cause of the
|
||||
* failure.
|
||||
*
|
||||
* Assumptions:
|
||||
* The caller holds the PM semaphore (g_pmsem).
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
EXTERN int stm32_pmstandby(void);
|
||||
|
||||
#undef EXTERN
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
#endif /* __ASSEMBLY__ */
|
||||
|
||||
#endif /* CONFIG_PM */
|
||||
#endif /* __ARCH_ARM_SRC_STM32_STM32_PM_H */
|
||||
|
|
@ -0,0 +1,107 @@
|
|||
/****************************************************************************
|
||||
* arch/arm/src/stm32/stm32_pminitialize.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/power/pm.h>
|
||||
|
||||
#include "up_internal.h"
|
||||
#include "stm32_pm.h"
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Data
|
||||
****************************************************************************/
|
||||
|
||||
/* Before any power state transition is made, the caller should hold this
|
||||
* semaphore to assure that there are no concurrent, contradictory power
|
||||
* state activities.
|
||||
*/
|
||||
|
||||
sem_t g_pmsem;
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: up_pminitialize
|
||||
*
|
||||
* Description:
|
||||
* This function is called by MCU-specific logic at power-on reset in
|
||||
* order to provide one-time initialization the power management subystem.
|
||||
* This function must be called *very* early in the intialization sequence
|
||||
* *before* any other device drivers are initialized (since they may
|
||||
* attempt to register with the power management subsystem).
|
||||
*
|
||||
* Input parameters:
|
||||
* None.
|
||||
*
|
||||
* Returned value:
|
||||
* None.
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
void up_pminitialize(void)
|
||||
{
|
||||
/* Initialize the PM semaphore to assure that no more than one power-related
|
||||
* action occurs at a time.
|
||||
*/
|
||||
|
||||
sem_init(&g_pmsem, 0, 1);
|
||||
|
||||
/* Then initialize the NuttX power management subsystem proper */
|
||||
|
||||
pm_initialize();
|
||||
}
|
||||
|
||||
#endif /* CONFIG_PM */
|
||||
|
|
@ -0,0 +1,116 @@
|
|||
/****************************************************************************
|
||||
* arch/arm/src/stm32/stm32_pmstandby.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 <stdbool.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
#include "nvic.h"
|
||||
#include "stm32_pwr.h"
|
||||
#include "stm32_pm.h"
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: stm32_pmstandby
|
||||
*
|
||||
* Description:
|
||||
* Enter STANDBY mode.
|
||||
*
|
||||
* Input Parameters:
|
||||
* None
|
||||
*
|
||||
* Returned Value.
|
||||
* On success, this function will not return (STANDBY mode can only be
|
||||
* terminated with a reset event). Otherwise, STANDBY mode did not occur
|
||||
* and a negated errno value is returned to indicate the cause of the
|
||||
* failure.
|
||||
*
|
||||
* Assumptions:
|
||||
* The caller holds the PM semaphore (g_pmsem).
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int stm32_pmstandby(void)
|
||||
{
|
||||
uint32_t regval;
|
||||
|
||||
/* Clear the Wake-Up Flag by setting the CWUF bit in the power control
|
||||
* register.
|
||||
*/
|
||||
|
||||
regval = getreg32(STM32_PWR_CR);
|
||||
regval |= PWR_CR_CWUF;
|
||||
putreg32(regval, STM32_PWR_CR);
|
||||
|
||||
/* Set the Power Down Deep Sleep (PDDS) bit in the power control register. */
|
||||
|
||||
regval |= PWR_CR_PDDS;
|
||||
putreg32(regval, STM32_PWR_CR);
|
||||
|
||||
/* Set SLEEPDEEP bit of Cortex System Control Register */
|
||||
|
||||
regval = getreg32(NVIC_SYSCON);
|
||||
regval |= NVIC_SYSCON_SLEEPDEEP;
|
||||
putreg32(regval, NVIC_SYSCON);
|
||||
|
||||
/* Sleep until the wakeup reset occurs */
|
||||
|
||||
asm("WFI");
|
||||
return OK; /* Won't get here */
|
||||
}
|
||||
|
||||
#endif /* CONFIG_PM */
|
||||
|
|
@ -0,0 +1,121 @@
|
|||
/****************************************************************************
|
||||
* arch/arm/src/stm32/stm32_pmstop.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 <stdbool.h>
|
||||
|
||||
#include "up_arch.h"
|
||||
#include "nvic.h"
|
||||
#include "stm32_pwr.h"
|
||||
#include "stm32_pm.h"
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
|
||||
/****************************************************************************
|
||||
* Pre-processor Definitions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Data
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Private Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Public Functions
|
||||
****************************************************************************/
|
||||
|
||||
/****************************************************************************
|
||||
* Name: stm32_pmstop
|
||||
*
|
||||
* Description:
|
||||
* Enter STOP mode.
|
||||
*
|
||||
* Input Parameters:
|
||||
* lpds - true: To further reduce power consumption in Stop mode, put the
|
||||
* internal voltage regulator in low-power mode using the LPDS bit
|
||||
* of the Power control register (PWR_CR).
|
||||
*
|
||||
* Returned Value:
|
||||
* Zero means that the STOP was successfully entered and the system has
|
||||
* been re-awakened. The internal volatage regulator is back to its
|
||||
* original state. Otherwise, STOP mode did not occur and a negated
|
||||
* errno value is returned to indicate the cause of the failure.
|
||||
*
|
||||
* Assumptions:
|
||||
* The caller holds the PM semaphore (g_pmsem).
|
||||
*
|
||||
****************************************************************************/
|
||||
|
||||
int stm32_pmstop(bool lpds)
|
||||
{
|
||||
uint32_t regval;
|
||||
|
||||
/* Clear the Power Down Deep Sleep (PDDS) and the Low Power Deep Sleep
|
||||
* (LPDS)) bits in the power control register.
|
||||
*/
|
||||
|
||||
regval = getreg32(STM32_PWR_CR);
|
||||
regval &= ~(PWR_CR_LPDS | PWR_CR_PDDS);
|
||||
|
||||
/* Set the Low Power Deep Sleep (LPDS) bit if so requested */
|
||||
|
||||
if (lpds)
|
||||
{
|
||||
regval |= PWR_CR_LPDS;
|
||||
}
|
||||
|
||||
putreg32(regval, STM32_PWR_CR);
|
||||
|
||||
/* Set SLEEPDEEP bit of Cortex System Control Register */
|
||||
|
||||
regval = getreg32(NVIC_SYSCON);
|
||||
regval |= NVIC_SYSCON_SLEEPDEEP;
|
||||
putreg32(regval, NVIC_SYSCON);
|
||||
|
||||
/* Sleep until the wakeup interrupt occurs (us WFE to wait for an event) */
|
||||
|
||||
asm("WFI");
|
||||
return OK;
|
||||
}
|
||||
|
||||
#endif /* CONFIG_PM */
|
||||
|
|
@ -305,8 +305,8 @@ CONFIG_PHY_LAN8720=n
|
|||
CONFIG_PHY_AUTONEG=y
|
||||
CONFIG_PHY_SPEED100=n
|
||||
CONFIG_PHY_FDUPLEX=y
|
||||
CONFIG_NET_NTXDESC=7
|
||||
CONFIG_NET_NRXDESC=7
|
||||
CONFIG_NET_NTXDESC=3
|
||||
CONFIG_NET_NRXDESC=5
|
||||
CONFIG_NET_REGDEBUG=n
|
||||
CONFIG_NET_DESCDEBUG=n
|
||||
CONFIG_NET_DUMPPACKET=n
|
||||
|
|
|
|||
|
|
@ -305,8 +305,8 @@ CONFIG_PHY_LAN8720=n
|
|||
CONFIG_PHY_AUTONEG=y
|
||||
CONFIG_PHY_SPEED100=n
|
||||
CONFIG_PHY_FDUPLEX=y
|
||||
CONFIG_NET_NTXDESC=7
|
||||
CONFIG_NET_NRXDESC=7
|
||||
CONFIG_NET_NTXDESC=3
|
||||
CONFIG_NET_NRXDESC=5
|
||||
CONFIG_NET_REGDEBUG=n
|
||||
CONFIG_NET_DESCDEBUG=n
|
||||
CONFIG_NET_DUMPPACKET=n
|
||||
|
|
|
|||
|
|
@ -305,8 +305,8 @@ CONFIG_PHY_LAN8720=n
|
|||
CONFIG_PHY_AUTONEG=y
|
||||
CONFIG_PHY_SPEED100=n
|
||||
CONFIG_PHY_FDUPLEX=y
|
||||
CONFIG_NET_NTXDESC=7
|
||||
CONFIG_NET_NRXDESC=7
|
||||
CONFIG_NET_NTXDESC=3
|
||||
CONFIG_NET_NRXDESC=5
|
||||
CONFIG_NET_REGDEBUG=n
|
||||
CONFIG_NET_DESCDEBUG=n
|
||||
CONFIG_NET_DUMPPACKET=n
|
||||
|
|
|
|||
|
|
@ -333,11 +333,11 @@ extern "C" {
|
|||
* Name: pm_initialize
|
||||
*
|
||||
* Description:
|
||||
* This function is called by MCU-specific one-time at power on reset in
|
||||
* order to initialize the power management capabilities. This function
|
||||
* must be called *very* early in the intialization sequence *before* any
|
||||
* other device drivers are initialize (since they may attempt to register
|
||||
* with the power management subsystem).
|
||||
* This function is called by MCU-specific logic at power-on reset in
|
||||
* order to provide one-time initialization the power management subystem.
|
||||
* This function must be called *very* early in the intialization sequence
|
||||
* *before* any other device drivers are initialized (since they may
|
||||
* attempt to register with the power management subsystem).
|
||||
*
|
||||
* Input parameters:
|
||||
* None.
|
||||
|
|
|
|||
Loading…
Reference in New Issue