187 lines
7.2 KiB
C
187 lines
7.2 KiB
C
/*
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* Copyright (c) 2015, Zolertia - http://www.zolertia.com
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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/*---------------------------------------------------------------------------*/
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/**
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* \addtogroup remote
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* @{
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*
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* \defgroup remote-power-mgmt RE-Mote power management driver
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*
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* The power management module is composed by a nano-watt (gating) timer and an
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* ultra-low power MCU, driving the RE-Mote power supply when connected to an
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* external battery, and allowing an application to enter a so-called "shutdown
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* mode".
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* While in shutdown mode, only the RTCC and the power management block is on,
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* effectively reducing the RE-Mote power consumption down to <~200nA. The
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* nano Timer allows the RE-Mote to be awaken off shutdown mode after a given
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* period (from 100ms to 2 hours, default is 1 minute). To change the shutdown
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* period, the R47 resistor (at the DELAY input pin, see the RE-Mote datasheet)
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* has to be changed.
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* See the TPL5110 datasheet ((Table 2 and 3) for more information about the R47
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* resistor value, below is a table resuming most common periods:
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*
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* +------------+------------+
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* | R47 (Ohm) | Time |
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* +------------+------------+
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* | 500 | 100ms |
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* +------------+------------+
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* | 2.5K | 500ms |
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* +------------+------------+
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* | 5.202K | 1s |
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* +------------+------------+
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* | 22.021K | 1min |
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* +------------+------------+
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* | 42.887K | 5min |
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* +------------+------------+
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* | 57.434K | 10min |
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* +------------+------------+
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* | 92.233K | 30min |
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* +------------+------------+
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* | 170K | 2h |
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* +------------+------------+
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*
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* An application can enter the shutdown mode before the shutdown period expires
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* by invoking the PM_SHUTDOWN_NOW macro.
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* The on-board RTCC can also be used to drive the CC2538 off PM3 power mode, if
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* the application requires to retain RAM. Note that while in shutdown mode the
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* RE-Mote will be powered off.
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*
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* @{
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*
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* \file
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* Header file for the RE-Mote Power Management driver
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*/
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/* -------------------------------------------------------------------------- */
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#ifndef POWER_MGMT_H_
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#define POWER_MGMT_H_
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#include "dev/gpio.h"
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/* -------------------------------------------------------------------------- */
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#define PM_CMD_PORT_BASE GPIO_PORT_TO_BASE(PM_CMD_PORT)
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#define PM_CMD_PIN_MASK GPIO_PIN_MASK(PM_CMD_PIN)
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#define PM_DONE_PORT_BASE GPIO_PORT_TO_BASE(PM_DONE_PORT)
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#define PM_DONE_PIN_MASK GPIO_PIN_MASK(PM_DONE_PIN)
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/* -------------------------------------------------------------------------- */
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/** \name Power Management return values
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* @{
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*/
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#define PM_SUCCESS 0
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#define PM_ERROR (-1)
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#define PM_MAX_BITS 8
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/** @} */
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/* -------------------------------------------------------------------------- */
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/** \name Power Management "done" signal
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* @{
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*/
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#define PM_SHUTDOWN_NOW GPIO_SET_PIN(PM_DONE_PORT_BASE, PM_DONE_PIN_MASK)
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/** @} */
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/* -------------------------------------------------------------------------- */
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/** \name Power Management timing values
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* @{
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*/
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#define PM_1_MILISECOND 1000L
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#define PM_2_2_MILISECOND 2200L
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#define PM_3_MILISECOND 3000L
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#define PM_10_MILISECOND 10000L
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/** @} */
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/* -------------------------------------------------------------------------- */
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/** \name Power Management commands
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* @{
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*/
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typedef enum {
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PM_CMD_PWR_ON = 0x34,
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PM_CMD_PWR_OFF = 0x35,
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PM_CMD_RST_HARD = 0x36,
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PM_CMD_RST_TIMED = 0x37, /* Not implemented */
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PM_CMD_DTIMER_ON = 0x38,
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PM_CMD_DTIMER_OFF = 0x39,
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PM_CMD_DTIMER_TIMED = 0x3A, /* Not implemented */
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PM_CMD_PARAM_SET_MAX_TIME = 0x3B, /* Not implemented */
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PM_CMD_GET_STATE = 0x3C,
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PM_CMD_GET_FW_VERSION = 0x3D,
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PM_MAX_NUM_CMDS
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} pm_cmd_t;
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/** @} */
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/* -------------------------------------------------------------------------- */
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/** \name Power Management status and masks
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* @{
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*/
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typedef enum {
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PM_IDLE,
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PM_SYSOFF_OFF,
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PM_SYSOFF_ON,
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PM_TIMER_DISABLED,
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PM_TIMER_ENABLED,
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PM_AWAITING_RTC_DIS, /* Not implemented */
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PM_AWAITING_RTC_EVENT, /* Not implemented */
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} pm_state_t;
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#define PM_SYSOFF_ON_MASK 0x01
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#define PM_TIMER_ENABLED_MASK 0x02
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#define PM_AWAITING_RTC_EVENT_MASK 0x04
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/** @} */
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/* -------------------------------------------------------------------------- */
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/** \name Power Management functions
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* @{
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*/
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/** \brief Initializes the Power Management driver
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* \return \c PM_SUCCESS if initialized, else \c PM_ERROR
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*/
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int8_t pm_init(void);
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/* -------------------------------------------------------------------------- */
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/** \brief Enable the shutdown mode, periodically driven by the Nano Timer
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* \return \c PM_SUCCESS if successful, else \c PM_ERROR
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*/
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int8_t pm_enable_timer(void);
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/* -------------------------------------------------------------------------- */
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/** \brief Disable the Nano Timer
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* \return \c PM_SUCCESS if successful, else \c PM_ERROR
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*/
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int8_t pm_disable_timer(void);
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/* -------------------------------------------------------------------------- */
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/** \brief Get the current state of the power management module
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* \param state Pointer to a variable to save the state
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* \return \c PM_SUCCESS if successful, else \c PM_ERROR
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*/
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int8_t pm_get_state(uint8_t *state);
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/* -------------------------------------------------------------------------- */
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/** \brief Get the firmware version of the power management module
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* \param state Pointer to a variable to save the state
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* \return \c PM_SUCCESS if successful, else \c PM_ERROR
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*/
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int8_t pm_get_firmware_version(uint8_t *state);
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/* -------------------------------------------------------------------------- */
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/** @} */
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#endif /* POWER_MGMT_H_ */
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/*---------------------------------------------------------------------------*/
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/**
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* @}
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* @}
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*/
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