Contiki-NG
board.c
Go to the documentation of this file.
1/*
2 * Copyright (c) 2014, Texas Instruments Incorporated - http://www.ti.com/
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 copyright holder nor the names of its
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
20 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
21 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
23 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
26 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
28 * OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30/*---------------------------------------------------------------------------*/
31/**
32 * \addtogroup srf06-common-peripherals
33 * @{
34 *
35 * \file
36 * Board-initialisation for the Srf06EB with a CC13xx/CC26xx EM.
37 */
38/*---------------------------------------------------------------------------*/
39#include "contiki.h"
40#include "ti-lib.h"
41#include "lpm.h"
42#include "prcm.h"
43#include "hw_sysctl.h"
44
45#include <stdint.h>
46#include <string.h>
47/*---------------------------------------------------------------------------*/
48static void
49lpm_handler(uint8_t mode)
50{
51 /* Ambient light sensor (off, output low) */
52 ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_ALS_PWR);
53 ti_lib_gpio_clear_dio(BOARD_IOID_ALS_PWR);
54 ti_lib_ioc_pin_type_gpio_input(BOARD_IOID_ALS_OUT);
55 ti_lib_ioc_io_port_pull_set(BOARD_IOID_ALS_OUT, IOC_NO_IOPULL);
56}
57/*---------------------------------------------------------------------------*/
58static void
59wakeup_handler(void)
60{
61 /* Turn on the PERIPH PD */
62 ti_lib_prcm_power_domain_on(PRCM_DOMAIN_PERIPH);
63 while((ti_lib_prcm_power_domain_status(PRCM_DOMAIN_PERIPH)
64 != PRCM_DOMAIN_POWER_ON));
65}
66/*---------------------------------------------------------------------------*/
67/*
68 * Declare a data structure to register with LPM.
69 * We don't care about what power mode we'll drop to, we don't care about
70 * getting notified before deep sleep. All we need is to be notified when we
71 * wake up so we can turn power domains back on
72 */
73LPM_MODULE(srf_module, NULL, lpm_handler, wakeup_handler, LPM_DOMAIN_NONE);
74/*---------------------------------------------------------------------------*/
75static void
76configure_unused_pins(void)
77{
78 /* Turn off 3.3-V domain (lcd/sdcard power, output low) */
79 ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_3V3_EN);
80 ti_lib_gpio_clear_dio(BOARD_IOID_3V3_EN);
81
82 /* Accelerometer (PWR output low, CSn output, high) */
83 ti_lib_ioc_pin_type_gpio_output(BOARD_IOID_ACC_PWR);
84 ti_lib_gpio_clear_dio(BOARD_IOID_ACC_PWR);
85}
86/*---------------------------------------------------------------------------*/
87void
89{
90 uint8_t int_disabled = ti_lib_int_master_disable();
91
92 /* Turn on relevant PDs */
93 wakeup_handler();
94
95 /* Enable GPIO peripheral */
96 ti_lib_prcm_peripheral_run_enable(PRCM_PERIPH_GPIO);
97
98 /* Apply settings and wait for them to take effect */
99 ti_lib_prcm_load_set();
100 while(!ti_lib_prcm_load_get());
101
102 lpm_register_module(&srf_module);
103
104 configure_unused_pins();
105
106 /* Re-enable interrupt if initially enabled. */
107 if(!int_disabled) {
108 ti_lib_int_master_enable();
109 }
110}
111/*---------------------------------------------------------------------------*/
112/** @} */
#define LPM_MODULE(n, m, s, w, l)
Declare a variable to be used in order to get notifications from LPM.
Definition: lpm.h:96
void lpm_register_module(lpm_registered_module_t *module)
Register a module for LPM notifications.
Definition: lpm.c:545
void board_init()
Board specific iniatialisation.
Definition: board.c:80
Header file with macros which rename TI CC26xxware functions.