Contiki-NG
tps62730.c
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1 /*
2  * Copyright (c) 2014, OpenMote Technologies, S.L.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  * notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  * notice, this list of conditions and the following disclaimer in the
12  * documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the Institute nor the names of its contributors
14  * may be used to endorse or promote products derived from this software
15  * without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * This file is part of the Contiki operating system.
30  *
31  */
32 /*---------------------------------------------------------------------------*/
33 /**
34  * \addtogroup openmote-tps62730
35  * @{
36  *
37  * Driver for the TPS62730 voltage regulator, to enable power from
38  * the battery voltage (bypass, Vout=Vin, Iq < 1uA) or through the
39  * buck regulator (on, Vout=2.1V, Iq = 30uA)
40  * @{
41  *
42  * \file
43  * Driver for the TPS62730 voltage regulator
44  *
45  * \author
46  * Pere Tuset <peretuset@openmote.com>
47  */
48 /*---------------------------------------------------------------------------*/
49 #include "contiki.h"
50 #include "dev/gpio.h"
51 #include "dev/tps62730.h"
52 /*---------------------------------------------------------------------------*/
53 #define BSP_TPS62730_BASE (GPIO_B_BASE)
54 #define BSP_TPS62730_ON (1 << 1)
55 #define BSP_TPS62730_STATUS (1 << 0)
56 /*---------------------------------------------------------------------------*/
57 static void
58 gpio_set(int port, int bit)
59 {
60  REG((port | GPIO_DATA) + (bit << 2)) = bit;
61 }
62 /*---------------------------------------------------------------------------*/
63 static void
64 gpio_reset(int port, int bit)
65 {
66  REG((port | GPIO_DATA) + (bit << 2)) = 0;
67 }
68 /*---------------------------------------------------------------------------*/
69 void
71 {
72  GPIO_SET_OUTPUT(BSP_TPS62730_BASE, BSP_TPS62730_ON);
73  GPIO_SET_INPUT(BSP_TPS62730_BASE, BSP_TPS62730_STATUS);
74 
76 }
77 /*---------------------------------------------------------------------------*/
78 void
80 {
81  gpio_set(BSP_TPS62730_BASE, BSP_TPS62730_ON);
82 }
83 /*---------------------------------------------------------------------------*/
84 void
86 {
87  gpio_reset(BSP_TPS62730_BASE, BSP_TPS62730_ON);
88 }
89 /*---------------------------------------------------------------------------*/
90 /**
91  * @}
92  * @}
93  */
#define GPIO_DATA
Data register.
Definition: gpio.h:342
Header file with register and macro declarations for the cc2538 GPIO module.
Driver for the TPS62730 voltage regulator.
#define GPIO_SET_INPUT(PORT_BASE, PIN_MASK)
Set pins with PIN_MASK of port with PORT_BASE to input.
Definition: gpio.h:78
#define GPIO_SET_OUTPUT(PORT_BASE, PIN_MASK)
Set pins with PIN_MASK of port with PORT_BASE to output.
Definition: gpio.h:85
void tps62730_bypass(void)
Set TPS62730 to bypass, Vout = Vin, Iq < 1 uA.
Definition: tps62730.c:85
void tps62730_init(void)
Initialize the TPS62730 voltage regulator in bypass mode.
Definition: tps62730.c:70
void tps62730_on(void)
Set TPS62730 to on, Vout = 2.2V, Iq = 30 uA.
Definition: tps62730.c:79