1 /**************************************************************************//**
2 * @file
3 * @brief EFM32GG_DK3750 board support package BRD3600A API implementation
4 * @author Energy Micro AS
5 * @version 2.0.1
6 ******************************************************************************
7 * @section License
8 * <b>(C) Copyright 2012 Energy Micro AS, http://www.energymicro.com</b>
9 *******************************************************************************
10 *
11 * Permission is granted to anyone to use this software for any purpose,
12 * including commercial applications, and to alter it and redistribute it
13 * freely, subject to the following restrictions:
14 *
15 * 1. The origin of this software must not be misrepresented; you must not
16 * claim that you wrote the original software.
17 * 2. Altered source versions must be plainly marked as such, and must not be
18 * misrepresented as being the original software.
19 * 3. This notice may not be removed or altered from any source distribution.
20 * 4. The source and compiled code may only be used on Energy Micro "EFM32"
21 * microcontrollers and "EFR4" radios.
22 *
23 * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Energy Micro AS has no
24 * obligation to support this Software. Energy Micro AS is providing the
25 * Software "AS IS", with no express or implied warranties of any kind,
26 * including, but not limited to, any implied warranties of merchantability
27 * or fitness for any particular purpose or warranties against infringement
28 * of any proprietary rights of a third party.
29 *
30 * Energy Micro AS will not be liable for any consequential, incidental, or
31 * special damages, or any other relief, or for any claim by any third party,
32 * arising from your use of this Software.
33 *
34 *****************************************************************************/
35
36 /***************************************************************************//**
37 * @addtogroup BSP
38 * @{
39 ******************************************************************************/
40
41 #include "efm32.h"
42 #include "em_gpio.h"
43 #include "em_ebi.h"
44 #include "em_cmu.h"
45 #include "dvk.h"
46 #include "dvk_bcregisters.h"
47
48 /**************************************************************************//**
49 * @brief Configure BRD3600A on-board peripherals.
50 *****************************************************************************/
DVK_BRD3600A_init(void)51 void DVK_BRD3600A_init(void)
52 {
53 /* Enable CMU GPIO clocks */
54 CMU_ClockEnable(cmuClock_GPIO, true);
55
56 /* USB status LED - configure PE1 as push pull */
57 GPIO_PinModeSet(gpioPortE, 1, gpioModePushPull, 0);
58
59 /* USB overcurrent status - configure PE2 as push pull */
60 GPIO_PinModeSet(gpioPortE, 2, gpioModeInput, 0);
61
62 /* USB VBUS switch - configure PF5 as push pull - Default OFF */
63 GPIO_PinModeSet(gpioPortF, 5, gpioModePushPull, 0);
64
65 return;
66 }
67
68
69 /**************************************************************************//**
70 * @brief Disable EFM32GG_DK3750 EBI board support package functionality
71 *****************************************************************************/
DVK_BRD3600A_deInit(void)72 void DVK_BRD3600A_deInit(void)
73 {
74 /* Disable PE1 */
75 GPIO_PinModeSet(gpioPortE, 1, gpioModePushPull, 0);
76
77 /* Disable CMU GPIO clocks */
78 CMU_ClockEnable(cmuClock_GPIO, false);
79
80
81 return;
82 }
83
84 /**************************************************************************//**
85 * @brief Set state of USB status LED
86 * @param[in] enable Set to true to light LED, false to dim it
87 *****************************************************************************/
DVK_BRD3600A_usbStatusLEDEnable(int enable)88 void DVK_BRD3600A_usbStatusLEDEnable(int enable)
89 {
90 GPIO_PinModeSet(gpioPortE, 1, gpioModePushPull, enable);
91
92 return;
93 }
94
95 /**************************************************************************//**
96 * @brief Enable VBUS switch
97 * @param[in] enable Set to true to enable switch
98 *****************************************************************************/
DVK_BRD3600A_usbVBUSSwitchEnable(int enable)99 void DVK_BRD3600A_usbVBUSSwitchEnable(int enable)
100 {
101 GPIO_PinModeSet(gpioPortF, 5, gpioModePushPull, enable);
102
103 return;
104 }
105
106 /**************************************************************************//**
107 * @brief Get state of VBUS switch overcurrent flag
108 *****************************************************************************/
DVK_BRD3600A_usbVBUSGetOCFlagState(void)109 int DVK_BRD3600A_usbVBUSGetOCFlagState(void)
110 {
111 return ~GPIO_PinInGet(gpioPortE, 2);
112 }
113
114 /** @} (end group BSP) */
115