Arrow / Mbed OS DAPLink Reset

Repostiory containing DAPLink source code with Reset Pin workaround for HANI_IOT board.

Upstream: https://github.com/ARMmbed/DAPLink

source/hic_hal/maxim/max32620/gpio.c@0:01f31e923fe2, 2020-04-07 (annotated)

Committer:
Pawel Zarembski
Date:
Tue Apr 07 12:55:42 2020 +0200
Revision:
0:01f31e923fe2
hani: DAPLink with reset workaround

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pawel Zarembski 0:01f31e923fe2 1 /* CMSIS-DAP Interface Firmware
Pawel Zarembski 0:01f31e923fe2 2 * Copyright (c) 2009-2013 ARM Limited
Pawel Zarembski 0:01f31e923fe2 3 *
Pawel Zarembski 0:01f31e923fe2 4 * Licensed under the Apache License, Version 2.0 (the "License");
Pawel Zarembski 0:01f31e923fe2 5 * you may not use this file except in compliance with the License.
Pawel Zarembski 0:01f31e923fe2 6 * You may obtain a copy of the License at
Pawel Zarembski 0:01f31e923fe2 7 *
Pawel Zarembski 0:01f31e923fe2 8 * http://www.apache.org/licenses/LICENSE-2.0
Pawel Zarembski 0:01f31e923fe2 9 *
Pawel Zarembski 0:01f31e923fe2 10 * Unless required by applicable law or agreed to in writing, software
Pawel Zarembski 0:01f31e923fe2 11 * distributed under the License is distributed on an "AS IS" BASIS,
Pawel Zarembski 0:01f31e923fe2 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Pawel Zarembski 0:01f31e923fe2 13 * See the License for the specific language governing permissions and
Pawel Zarembski 0:01f31e923fe2 14 * limitations under the License.
Pawel Zarembski 0:01f31e923fe2 15 */
Pawel Zarembski 0:01f31e923fe2 16
Pawel Zarembski 0:01f31e923fe2 17 #include "max32620.h"
Pawel Zarembski 0:01f31e923fe2 18 #include "clkman_regs.h"
Pawel Zarembski 0:01f31e923fe2 19 #include "gpio_regs.h"
Pawel Zarembski 0:01f31e923fe2 20 #include "IO_Config.h"
Pawel Zarembski 0:01f31e923fe2 21 #include "gpio.h"
Pawel Zarembski 0:01f31e923fe2 22
Pawel Zarembski 0:01f31e923fe2 23 /******************************************************************************/
Pawel Zarembski 0:01f31e923fe2 24 void gpio_init(void)
Pawel Zarembski 0:01f31e923fe2 25 {
Pawel Zarembski 0:01f31e923fe2 26 int i;
Pawel Zarembski 0:01f31e923fe2 27 uint32_t out_mode;
Pawel Zarembski 0:01f31e923fe2 28
Pawel Zarembski 0:01f31e923fe2 29 // Ensure that the GPIO clock is enabled
Pawel Zarembski 0:01f31e923fe2 30 if (MXC_CLKMAN->sys_clk_ctrl_6_gpio == MXC_S_CLKMAN_CLK_SCALE_DISABLED) {
Pawel Zarembski 0:01f31e923fe2 31 MXC_CLKMAN->sys_clk_ctrl_6_gpio = MXC_S_CLKMAN_CLK_SCALE_DIV_1;
Pawel Zarembski 0:01f31e923fe2 32 }
Pawel Zarembski 0:01f31e923fe2 33
Pawel Zarembski 0:01f31e923fe2 34 // All inputs readable
Pawel Zarembski 0:01f31e923fe2 35 for (i = 0; i < MXC_GPIO_NUM_PORTS; i++) {
Pawel Zarembski 0:01f31e923fe2 36 MXC_GPIO->in_mode[i] = 0x00000000;
Pawel Zarembski 0:01f31e923fe2 37 }
Pawel Zarembski 0:01f31e923fe2 38
Pawel Zarembski 0:01f31e923fe2 39 // LED initial state off
Pawel Zarembski 0:01f31e923fe2 40 MXC_GPIO->out_val[PIN_DAP_LED_PORT] |= (1 << PIN_DAP_LED_PIN);
Pawel Zarembski 0:01f31e923fe2 41 MXC_GPIO->out_val[PIN_MSD_LED_PORT] |= (1 << PIN_MSD_LED_PIN);
Pawel Zarembski 0:01f31e923fe2 42 MXC_GPIO->out_val[PIN_CDC_LED_PORT] |= (1 << PIN_CDC_LED_PIN);
Pawel Zarembski 0:01f31e923fe2 43
Pawel Zarembski 0:01f31e923fe2 44 // LED outputs
Pawel Zarembski 0:01f31e923fe2 45 out_mode = MXC_GPIO->out_mode[PIN_DAP_LED_PORT];
Pawel Zarembski 0:01f31e923fe2 46 out_mode &= ~(0xFU << (4 * PIN_DAP_LED_PIN));
Pawel Zarembski 0:01f31e923fe2 47 out_mode |= (MXC_V_GPIO_OUT_MODE_OPEN_DRAIN << (4 * PIN_DAP_LED_PIN));
Pawel Zarembski 0:01f31e923fe2 48 MXC_GPIO->out_mode[PIN_DAP_LED_PORT] = out_mode;
Pawel Zarembski 0:01f31e923fe2 49
Pawel Zarembski 0:01f31e923fe2 50 out_mode = MXC_GPIO->out_mode[PIN_MSD_LED_PORT];
Pawel Zarembski 0:01f31e923fe2 51 out_mode &= ~(0xFU << (4 * PIN_MSD_LED_PIN));
Pawel Zarembski 0:01f31e923fe2 52 out_mode |= (MXC_V_GPIO_OUT_MODE_OPEN_DRAIN << (4 * PIN_MSD_LED_PIN));
Pawel Zarembski 0:01f31e923fe2 53 MXC_GPIO->out_mode[PIN_MSD_LED_PORT] = out_mode;
Pawel Zarembski 0:01f31e923fe2 54
Pawel Zarembski 0:01f31e923fe2 55 out_mode = MXC_GPIO->out_mode[PIN_CDC_LED_PORT];
Pawel Zarembski 0:01f31e923fe2 56 out_mode &= ~(0xFU << (4 * PIN_CDC_LED_PIN));
Pawel Zarembski 0:01f31e923fe2 57 out_mode |= (MXC_V_GPIO_OUT_MODE_OPEN_DRAIN << (4 * PIN_CDC_LED_PIN));
Pawel Zarembski 0:01f31e923fe2 58 MXC_GPIO->out_mode[PIN_CDC_LED_PORT] = out_mode;
Pawel Zarembski 0:01f31e923fe2 59
Pawel Zarembski 0:01f31e923fe2 60 // Button input
Pawel Zarembski 0:01f31e923fe2 61 out_mode = MXC_GPIO->out_mode[PIN_RESET_IN_NO_FWRD_PORT];
Pawel Zarembski 0:01f31e923fe2 62 out_mode &= ~(0xFU << (4 * PIN_RESET_IN_NO_FWRD_PIN));
Pawel Zarembski 0:01f31e923fe2 63 out_mode |= (MXC_V_GPIO_OUT_MODE_OPEN_DRAIN_WEAK_PULLUP << (4 * PIN_RESET_IN_NO_FWRD_PIN));
Pawel Zarembski 0:01f31e923fe2 64 MXC_GPIO->out_mode[PIN_RESET_IN_NO_FWRD_PORT] = out_mode;
Pawel Zarembski 0:01f31e923fe2 65 MXC_GPIO->out_val[PIN_RESET_IN_NO_FWRD_PORT] |= (0x1 << PIN_RESET_IN_NO_FWRD_PIN);
Pawel Zarembski 0:01f31e923fe2 66 }
Pawel Zarembski 0:01f31e923fe2 67
Pawel Zarembski 0:01f31e923fe2 68 /******************************************************************************/
Pawel Zarembski 0:01f31e923fe2 69 void gpio_set_hid_led(gpio_led_state_t state)
Pawel Zarembski 0:01f31e923fe2 70 {
Pawel Zarembski 0:01f31e923fe2 71 if (state == GPIO_LED_ON) {
Pawel Zarembski 0:01f31e923fe2 72 MXC_CLRBIT(&MXC_GPIO->out_val[PIN_DAP_LED_PORT], PIN_DAP_LED_PIN);
Pawel Zarembski 0:01f31e923fe2 73 } else {
Pawel Zarembski 0:01f31e923fe2 74 MXC_SETBIT(&MXC_GPIO->out_val[PIN_DAP_LED_PORT], PIN_DAP_LED_PIN);
Pawel Zarembski 0:01f31e923fe2 75 }
Pawel Zarembski 0:01f31e923fe2 76 }
Pawel Zarembski 0:01f31e923fe2 77
Pawel Zarembski 0:01f31e923fe2 78 /******************************************************************************/
Pawel Zarembski 0:01f31e923fe2 79 void gpio_set_msc_led(gpio_led_state_t state)
Pawel Zarembski 0:01f31e923fe2 80 {
Pawel Zarembski 0:01f31e923fe2 81 if (state == GPIO_LED_ON) {
Pawel Zarembski 0:01f31e923fe2 82 MXC_CLRBIT(&MXC_GPIO->out_val[PIN_MSD_LED_PORT], PIN_MSD_LED_PIN);
Pawel Zarembski 0:01f31e923fe2 83 } else {
Pawel Zarembski 0:01f31e923fe2 84 MXC_SETBIT(&MXC_GPIO->out_val[PIN_MSD_LED_PORT], PIN_MSD_LED_PIN);
Pawel Zarembski 0:01f31e923fe2 85 }
Pawel Zarembski 0:01f31e923fe2 86 }
Pawel Zarembski 0:01f31e923fe2 87
Pawel Zarembski 0:01f31e923fe2 88 /******************************************************************************/
Pawel Zarembski 0:01f31e923fe2 89 void gpio_set_cdc_led(gpio_led_state_t state)
Pawel Zarembski 0:01f31e923fe2 90 {
Pawel Zarembski 0:01f31e923fe2 91 if (state == GPIO_LED_ON) {
Pawel Zarembski 0:01f31e923fe2 92 MXC_CLRBIT(&MXC_GPIO->out_val[PIN_CDC_LED_PORT], PIN_CDC_LED_PIN);
Pawel Zarembski 0:01f31e923fe2 93 } else {
Pawel Zarembski 0:01f31e923fe2 94 MXC_SETBIT(&MXC_GPIO->out_val[PIN_CDC_LED_PORT], PIN_CDC_LED_PIN);
Pawel Zarembski 0:01f31e923fe2 95 }
Pawel Zarembski 0:01f31e923fe2 96 }
Pawel Zarembski 0:01f31e923fe2 97
Pawel Zarembski 0:01f31e923fe2 98 /******************************************************************************/
Pawel Zarembski 0:01f31e923fe2 99 uint8_t gpio_get_reset_btn_no_fwrd(void)
Pawel Zarembski 0:01f31e923fe2 100 {
Pawel Zarembski 0:01f31e923fe2 101 return !MXC_GETBIT(&MXC_GPIO->in_val[PIN_RESET_IN_NO_FWRD_PORT], PIN_RESET_IN_NO_FWRD_PIN);
Pawel Zarembski 0:01f31e923fe2 102 }
Pawel Zarembski 0:01f31e923fe2 103
Pawel Zarembski 0:01f31e923fe2 104 /******************************************************************************/
Pawel Zarembski 0:01f31e923fe2 105 uint8_t gpio_get_reset_btn_fwrd(void)
Pawel Zarembski 0:01f31e923fe2 106 {
Pawel Zarembski 0:01f31e923fe2 107 return 0;
Pawel Zarembski 0:01f31e923fe2 108 }
Pawel Zarembski 0:01f31e923fe2 109
Pawel Zarembski 0:01f31e923fe2 110 /******************************************************************************/
Pawel Zarembski 0:01f31e923fe2 111 void gpio_set_board_power(bool powerEnabled)
Pawel Zarembski 0:01f31e923fe2 112 {
Pawel Zarembski 0:01f31e923fe2 113 }