Gymtrack / nRF51822_1

SG RFID nRF51822 fork

Fork of nRF51822 by Nordic Semiconductor

nordic/app_common/app_gpiote.c@46:2bfbbe290083, 2014-07-16 (annotated)

Committer:
Rohit Grover
Date:
Wed Jul 16 10:54:22 2014 +0100
Revision:
46:2bfbbe290083
Child:
56:a1071b629aa3
get some more app_common ancillary sources from the Nordic SDK

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Rohit Grover 46:2bfbbe290083 1 /* Copyright (c) 2012 Nordic Semiconductor. All Rights Reserved.
Rohit Grover 46:2bfbbe290083 2 *
Rohit Grover 46:2bfbbe290083 3 * The information contained herein is property of Nordic Semiconductor ASA.
Rohit Grover 46:2bfbbe290083 4 * Terms and conditions of usage are described in detail in NORDIC
Rohit Grover 46:2bfbbe290083 5 * SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT.
Rohit Grover 46:2bfbbe290083 6 *
Rohit Grover 46:2bfbbe290083 7 * Licensees are granted free, non-transferable use of the information. NO
Rohit Grover 46:2bfbbe290083 8 * WARRANTY of ANY KIND is provided. This heading must NOT be removed from
Rohit Grover 46:2bfbbe290083 9 * the file.
Rohit Grover 46:2bfbbe290083 10 *
Rohit Grover 46:2bfbbe290083 11 */
Rohit Grover 46:2bfbbe290083 12
Rohit Grover 46:2bfbbe290083 13 #include "app_gpiote.h"
Rohit Grover 46:2bfbbe290083 14 #include <stdlib.h>
Rohit Grover 46:2bfbbe290083 15 #include <string.h>
Rohit Grover 46:2bfbbe290083 16 #include "app_util.h"
Rohit Grover 46:2bfbbe290083 17 #include "app_util_platform.h"
Rohit Grover 46:2bfbbe290083 18 #include "nrf_error.h"
Rohit Grover 46:2bfbbe290083 19 #include "nrf_gpio.h"
Rohit Grover 46:2bfbbe290083 20
Rohit Grover 46:2bfbbe290083 21
Rohit Grover 46:2bfbbe290083 22 /**@brief GPIOTE user type. */
Rohit Grover 46:2bfbbe290083 23 typedef struct
Rohit Grover 46:2bfbbe290083 24 {
Rohit Grover 46:2bfbbe290083 25 uint32_t pins_mask; /**< Mask defining which pins user wants to monitor. */
Rohit Grover 46:2bfbbe290083 26 uint32_t pins_low_to_high_mask; /**< Mask defining which pins will generate events to this user when toggling low->high. */
Rohit Grover 46:2bfbbe290083 27 uint32_t pins_high_to_low_mask; /**< Mask defining which pins will generate events to this user when toggling high->low. */
Rohit Grover 46:2bfbbe290083 28 uint32_t sense_high_pins; /**< Mask defining which pins are configured to generate GPIOTE interrupt on transition to high level. */
Rohit Grover 46:2bfbbe290083 29 app_gpiote_event_handler_t event_handler; /**< Pointer to function to be executed when an event occurs. */
Rohit Grover 46:2bfbbe290083 30 } gpiote_user_t;
Rohit Grover 46:2bfbbe290083 31
Rohit Grover 46:2bfbbe290083 32 STATIC_ASSERT(sizeof(gpiote_user_t) <= GPIOTE_USER_NODE_SIZE);
Rohit Grover 46:2bfbbe290083 33 STATIC_ASSERT(sizeof(gpiote_user_t) % 4 == 0);
Rohit Grover 46:2bfbbe290083 34
Rohit Grover 46:2bfbbe290083 35 static uint32_t m_enabled_users_mask; /**< Mask for tracking which users are enabled. */
Rohit Grover 46:2bfbbe290083 36 static uint8_t m_user_array_size; /**< Size of user array. */
Rohit Grover 46:2bfbbe290083 37 static uint8_t m_user_count; /**< Number of registered users. */
Rohit Grover 46:2bfbbe290083 38 static gpiote_user_t * mp_users = NULL; /**< Array of GPIOTE users. */
Rohit Grover 46:2bfbbe290083 39
Rohit Grover 46:2bfbbe290083 40
Rohit Grover 46:2bfbbe290083 41 /**@brief Function for toggling sense level for specified pins.
Rohit Grover 46:2bfbbe290083 42 *
Rohit Grover 46:2bfbbe290083 43 * @param[in] p_user Pointer to user structure.
Rohit Grover 46:2bfbbe290083 44 * @param[in] pins Bitmask specifying for which pins the sense level is to be toggled.
Rohit Grover 46:2bfbbe290083 45 */
Rohit Grover 46:2bfbbe290083 46 static void sense_level_toggle(gpiote_user_t * p_user, uint32_t pins)
Rohit Grover 46:2bfbbe290083 47 {
Rohit Grover 46:2bfbbe290083 48 uint32_t pin_no;
Rohit Grover 46:2bfbbe290083 49
Rohit Grover 46:2bfbbe290083 50 for (pin_no = 0; pin_no < NO_OF_PINS; pin_no++)
Rohit Grover 46:2bfbbe290083 51 {
Rohit Grover 46:2bfbbe290083 52 uint32_t pin_mask = (1 << pin_no);
Rohit Grover 46:2bfbbe290083 53
Rohit Grover 46:2bfbbe290083 54 if ((pins & pin_mask) != 0)
Rohit Grover 46:2bfbbe290083 55 {
Rohit Grover 46:2bfbbe290083 56 uint32_t sense;
Rohit Grover 46:2bfbbe290083 57
Rohit Grover 46:2bfbbe290083 58 // Invert sensing.
Rohit Grover 46:2bfbbe290083 59 if ((p_user->sense_high_pins & pin_mask) == 0)
Rohit Grover 46:2bfbbe290083 60 {
Rohit Grover 46:2bfbbe290083 61 sense = GPIO_PIN_CNF_SENSE_High << GPIO_PIN_CNF_SENSE_Pos;
Rohit Grover 46:2bfbbe290083 62 p_user->sense_high_pins |= pin_mask;
Rohit Grover 46:2bfbbe290083 63 }
Rohit Grover 46:2bfbbe290083 64 else
Rohit Grover 46:2bfbbe290083 65 {
Rohit Grover 46:2bfbbe290083 66 sense = GPIO_PIN_CNF_SENSE_Low << GPIO_PIN_CNF_SENSE_Pos;
Rohit Grover 46:2bfbbe290083 67 p_user->sense_high_pins &= ~pin_mask;
Rohit Grover 46:2bfbbe290083 68 }
Rohit Grover 46:2bfbbe290083 69
Rohit Grover 46:2bfbbe290083 70 NRF_GPIO->PIN_CNF[pin_no] &= ~GPIO_PIN_CNF_SENSE_Msk;
Rohit Grover 46:2bfbbe290083 71 NRF_GPIO->PIN_CNF[pin_no] |= sense;
Rohit Grover 46:2bfbbe290083 72 }
Rohit Grover 46:2bfbbe290083 73 }
Rohit Grover 46:2bfbbe290083 74 }
Rohit Grover 46:2bfbbe290083 75
Rohit Grover 46:2bfbbe290083 76
Rohit Grover 46:2bfbbe290083 77 /**@brief Function for handling the GPIOTE interrupt.
Rohit Grover 46:2bfbbe290083 78 */
Rohit Grover 46:2bfbbe290083 79 void GPIOTE_IRQHandler(void)
Rohit Grover 46:2bfbbe290083 80 {
Rohit Grover 46:2bfbbe290083 81 uint8_t i;
Rohit Grover 46:2bfbbe290083 82 uint32_t pins_changed;
Rohit Grover 46:2bfbbe290083 83 uint32_t pins_state = NRF_GPIO->IN;
Rohit Grover 46:2bfbbe290083 84
Rohit Grover 46:2bfbbe290083 85 // Clear event.
Rohit Grover 46:2bfbbe290083 86 NRF_GPIOTE->EVENTS_PORT = 0;
Rohit Grover 46:2bfbbe290083 87
Rohit Grover 46:2bfbbe290083 88 // Check all users.
Rohit Grover 46:2bfbbe290083 89 for (i = 0; i < m_user_count; i++)
Rohit Grover 46:2bfbbe290083 90 {
Rohit Grover 46:2bfbbe290083 91 gpiote_user_t * p_user = &mp_users[i];
Rohit Grover 46:2bfbbe290083 92
Rohit Grover 46:2bfbbe290083 93 // Check if user is enabled.
Rohit Grover 46:2bfbbe290083 94 if (((1 << i) & m_enabled_users_mask) != 0)
Rohit Grover 46:2bfbbe290083 95 {
Rohit Grover 46:2bfbbe290083 96 uint32_t transition_pins;
Rohit Grover 46:2bfbbe290083 97 uint32_t event_low_to_high;
Rohit Grover 46:2bfbbe290083 98 uint32_t event_high_to_low;
Rohit Grover 46:2bfbbe290083 99
Rohit Grover 46:2bfbbe290083 100 // Find set of pins on which there has been a transition.
Rohit Grover 46:2bfbbe290083 101 transition_pins = (pins_state ^ ~p_user->sense_high_pins) & p_user->pins_mask;
Rohit Grover 46:2bfbbe290083 102
Rohit Grover 46:2bfbbe290083 103 // Toggle SENSE level for all pins that have changed state.
Rohit Grover 46:2bfbbe290083 104 sense_level_toggle(p_user, transition_pins);
Rohit Grover 46:2bfbbe290083 105
Rohit Grover 46:2bfbbe290083 106 // Second read after setting sense.
Rohit Grover 46:2bfbbe290083 107 // Check if any pins have changed while serving this interrupt.
Rohit Grover 46:2bfbbe290083 108 pins_changed = NRF_GPIO->IN ^ pins_state;
Rohit Grover 46:2bfbbe290083 109 if (pins_changed)
Rohit Grover 46:2bfbbe290083 110 {
Rohit Grover 46:2bfbbe290083 111 // Transition pins detected in late stage.
Rohit Grover 46:2bfbbe290083 112 uint32_t late_transition_pins;
Rohit Grover 46:2bfbbe290083 113
Rohit Grover 46:2bfbbe290083 114 pins_state |= pins_changed;
Rohit Grover 46:2bfbbe290083 115
Rohit Grover 46:2bfbbe290083 116 // Find set of pins on which there has been a transition.
Rohit Grover 46:2bfbbe290083 117 late_transition_pins = (pins_state ^ ~p_user->sense_high_pins) & p_user->pins_mask;
Rohit Grover 46:2bfbbe290083 118
Rohit Grover 46:2bfbbe290083 119 // Toggle SENSE level for all pins that have changed state in last phase.
Rohit Grover 46:2bfbbe290083 120 sense_level_toggle(p_user, late_transition_pins);
Rohit Grover 46:2bfbbe290083 121
Rohit Grover 46:2bfbbe290083 122 // Update pins that has changed state since the interrupt occurred.
Rohit Grover 46:2bfbbe290083 123 transition_pins |= late_transition_pins;
Rohit Grover 46:2bfbbe290083 124 }
Rohit Grover 46:2bfbbe290083 125
Rohit Grover 46:2bfbbe290083 126 // Call user event handler if an event has occurred.
Rohit Grover 46:2bfbbe290083 127 event_high_to_low = (~pins_state & p_user->pins_high_to_low_mask) & transition_pins;
Rohit Grover 46:2bfbbe290083 128 event_low_to_high = (pins_state & p_user->pins_low_to_high_mask) & transition_pins;
Rohit Grover 46:2bfbbe290083 129
Rohit Grover 46:2bfbbe290083 130 if ((event_low_to_high | event_high_to_low) != 0)
Rohit Grover 46:2bfbbe290083 131 {
Rohit Grover 46:2bfbbe290083 132 p_user->event_handler(event_low_to_high, event_high_to_low);
Rohit Grover 46:2bfbbe290083 133 }
Rohit Grover 46:2bfbbe290083 134 }
Rohit Grover 46:2bfbbe290083 135 }
Rohit Grover 46:2bfbbe290083 136 }
Rohit Grover 46:2bfbbe290083 137
Rohit Grover 46:2bfbbe290083 138
Rohit Grover 46:2bfbbe290083 139 /**@brief Function for sense disabling for all pins for specified user.
Rohit Grover 46:2bfbbe290083 140 *
Rohit Grover 46:2bfbbe290083 141 * @param[in] user_id User id.
Rohit Grover 46:2bfbbe290083 142 */
Rohit Grover 46:2bfbbe290083 143 static void pins_sense_disable(app_gpiote_user_id_t user_id)
Rohit Grover 46:2bfbbe290083 144 {
Rohit Grover 46:2bfbbe290083 145 uint32_t pin_no;
Rohit Grover 46:2bfbbe290083 146
Rohit Grover 46:2bfbbe290083 147 for (pin_no = 0; pin_no < 32; pin_no++)
Rohit Grover 46:2bfbbe290083 148 {
Rohit Grover 46:2bfbbe290083 149 if ((mp_users[user_id].pins_mask & (1 << pin_no)) != 0)
Rohit Grover 46:2bfbbe290083 150 {
Rohit Grover 46:2bfbbe290083 151 NRF_GPIO->PIN_CNF[pin_no] &= ~GPIO_PIN_CNF_SENSE_Msk;
Rohit Grover 46:2bfbbe290083 152 NRF_GPIO->PIN_CNF[pin_no] |= GPIO_PIN_CNF_SENSE_Disabled << GPIO_PIN_CNF_SENSE_Pos;
Rohit Grover 46:2bfbbe290083 153 }
Rohit Grover 46:2bfbbe290083 154 }
Rohit Grover 46:2bfbbe290083 155 }
Rohit Grover 46:2bfbbe290083 156
Rohit Grover 46:2bfbbe290083 157
Rohit Grover 46:2bfbbe290083 158 uint32_t app_gpiote_init(uint8_t max_users, void * p_buffer)
Rohit Grover 46:2bfbbe290083 159 {
Rohit Grover 46:2bfbbe290083 160 if (p_buffer == NULL)
Rohit Grover 46:2bfbbe290083 161 {
Rohit Grover 46:2bfbbe290083 162 return NRF_ERROR_INVALID_PARAM;
Rohit Grover 46:2bfbbe290083 163 }
Rohit Grover 46:2bfbbe290083 164
Rohit Grover 46:2bfbbe290083 165 // Check that buffer is correctly aligned.
Rohit Grover 46:2bfbbe290083 166 if (!is_word_aligned(p_buffer))
Rohit Grover 46:2bfbbe290083 167 {
Rohit Grover 46:2bfbbe290083 168 return NRF_ERROR_INVALID_PARAM;
Rohit Grover 46:2bfbbe290083 169 }
Rohit Grover 46:2bfbbe290083 170
Rohit Grover 46:2bfbbe290083 171 // Initialize file globals.
Rohit Grover 46:2bfbbe290083 172 mp_users = (gpiote_user_t *)p_buffer;
Rohit Grover 46:2bfbbe290083 173 m_user_array_size = max_users;
Rohit Grover 46:2bfbbe290083 174 m_user_count = 0;
Rohit Grover 46:2bfbbe290083 175 m_enabled_users_mask = 0;
Rohit Grover 46:2bfbbe290083 176
Rohit Grover 46:2bfbbe290083 177 memset(mp_users, 0, m_user_array_size * sizeof(gpiote_user_t));
Rohit Grover 46:2bfbbe290083 178
Rohit Grover 46:2bfbbe290083 179 // Initialize GPIOTE interrupt (will not be enabled until app_gpiote_user_enable() is called).
Rohit Grover 46:2bfbbe290083 180 NRF_GPIOTE->INTENCLR = 0xFFFFFFFF;
Rohit Grover 46:2bfbbe290083 181
Rohit Grover 46:2bfbbe290083 182 NVIC_ClearPendingIRQ(GPIOTE_IRQn);
Rohit Grover 46:2bfbbe290083 183 NVIC_SetPriority(GPIOTE_IRQn, APP_IRQ_PRIORITY_HIGH);
Rohit Grover 46:2bfbbe290083 184 NVIC_EnableIRQ(GPIOTE_IRQn);
Rohit Grover 46:2bfbbe290083 185
Rohit Grover 46:2bfbbe290083 186 return NRF_SUCCESS;
Rohit Grover 46:2bfbbe290083 187 }
Rohit Grover 46:2bfbbe290083 188
Rohit Grover 46:2bfbbe290083 189
Rohit Grover 46:2bfbbe290083 190 uint32_t app_gpiote_user_register(app_gpiote_user_id_t * p_user_id,
Rohit Grover 46:2bfbbe290083 191 uint32_t pins_low_to_high_mask,
Rohit Grover 46:2bfbbe290083 192 uint32_t pins_high_to_low_mask,
Rohit Grover 46:2bfbbe290083 193 app_gpiote_event_handler_t event_handler)
Rohit Grover 46:2bfbbe290083 194 {
Rohit Grover 46:2bfbbe290083 195 // Check state and parameters.
Rohit Grover 46:2bfbbe290083 196 if (mp_users == NULL)
Rohit Grover 46:2bfbbe290083 197 {
Rohit Grover 46:2bfbbe290083 198 return NRF_ERROR_INVALID_STATE;
Rohit Grover 46:2bfbbe290083 199 }
Rohit Grover 46:2bfbbe290083 200 if (event_handler == NULL)
Rohit Grover 46:2bfbbe290083 201 {
Rohit Grover 46:2bfbbe290083 202 return NRF_ERROR_INVALID_PARAM;
Rohit Grover 46:2bfbbe290083 203 }
Rohit Grover 46:2bfbbe290083 204 if (m_user_count >= m_user_array_size)
Rohit Grover 46:2bfbbe290083 205 {
Rohit Grover 46:2bfbbe290083 206 return NRF_ERROR_NO_MEM;
Rohit Grover 46:2bfbbe290083 207 }
Rohit Grover 46:2bfbbe290083 208
Rohit Grover 46:2bfbbe290083 209 // Allocate new user.
Rohit Grover 46:2bfbbe290083 210 mp_users[m_user_count].pins_mask = pins_low_to_high_mask | pins_high_to_low_mask;
Rohit Grover 46:2bfbbe290083 211 mp_users[m_user_count].pins_low_to_high_mask = pins_low_to_high_mask;
Rohit Grover 46:2bfbbe290083 212 mp_users[m_user_count].pins_high_to_low_mask = pins_high_to_low_mask;
Rohit Grover 46:2bfbbe290083 213 mp_users[m_user_count].event_handler = event_handler;
Rohit Grover 46:2bfbbe290083 214
Rohit Grover 46:2bfbbe290083 215 *p_user_id = m_user_count++;
Rohit Grover 46:2bfbbe290083 216
Rohit Grover 46:2bfbbe290083 217 // Make sure SENSE is disabled for all pins.
Rohit Grover 46:2bfbbe290083 218 pins_sense_disable(*p_user_id);
Rohit Grover 46:2bfbbe290083 219
Rohit Grover 46:2bfbbe290083 220 return NRF_SUCCESS;
Rohit Grover 46:2bfbbe290083 221 }
Rohit Grover 46:2bfbbe290083 222
Rohit Grover 46:2bfbbe290083 223
Rohit Grover 46:2bfbbe290083 224 uint32_t app_gpiote_user_enable(app_gpiote_user_id_t user_id)
Rohit Grover 46:2bfbbe290083 225 {
Rohit Grover 46:2bfbbe290083 226 uint32_t pin_no;
Rohit Grover 46:2bfbbe290083 227 uint32_t pins_state;
Rohit Grover 46:2bfbbe290083 228
Rohit Grover 46:2bfbbe290083 229 // Check state and parameters.
Rohit Grover 46:2bfbbe290083 230 if (mp_users == NULL)
Rohit Grover 46:2bfbbe290083 231 {
Rohit Grover 46:2bfbbe290083 232 return NRF_ERROR_INVALID_STATE;
Rohit Grover 46:2bfbbe290083 233 }
Rohit Grover 46:2bfbbe290083 234 if (user_id >= m_user_count)
Rohit Grover 46:2bfbbe290083 235 {
Rohit Grover 46:2bfbbe290083 236 return NRF_ERROR_INVALID_PARAM;
Rohit Grover 46:2bfbbe290083 237 }
Rohit Grover 46:2bfbbe290083 238
Rohit Grover 46:2bfbbe290083 239 // Clear any pending event.
Rohit Grover 46:2bfbbe290083 240 NRF_GPIOTE->EVENTS_PORT = 0;
Rohit Grover 46:2bfbbe290083 241 pins_state = NRF_GPIO->IN;
Rohit Grover 46:2bfbbe290083 242
Rohit Grover 46:2bfbbe290083 243 // Enable user.
Rohit Grover 46:2bfbbe290083 244 if (m_enabled_users_mask == 0)
Rohit Grover 46:2bfbbe290083 245 {
Rohit Grover 46:2bfbbe290083 246 NRF_GPIOTE->INTENSET = GPIOTE_INTENSET_PORT_Msk;
Rohit Grover 46:2bfbbe290083 247 }
Rohit Grover 46:2bfbbe290083 248 m_enabled_users_mask |= (1 << user_id);
Rohit Grover 46:2bfbbe290083 249
Rohit Grover 46:2bfbbe290083 250 // Enable sensing for all pins for specified user.
Rohit Grover 46:2bfbbe290083 251 mp_users[user_id].sense_high_pins = 0;
Rohit Grover 46:2bfbbe290083 252 for (pin_no = 0; pin_no < 32; pin_no++)
Rohit Grover 46:2bfbbe290083 253 {
Rohit Grover 46:2bfbbe290083 254 uint32_t pin_mask = (1 << pin_no);
Rohit Grover 46:2bfbbe290083 255
Rohit Grover 46:2bfbbe290083 256 if ((mp_users[user_id].pins_mask & pin_mask) != 0)
Rohit Grover 46:2bfbbe290083 257 {
Rohit Grover 46:2bfbbe290083 258 uint32_t sense;
Rohit Grover 46:2bfbbe290083 259
Rohit Grover 46:2bfbbe290083 260 if ((pins_state & pin_mask) != 0)
Rohit Grover 46:2bfbbe290083 261 {
Rohit Grover 46:2bfbbe290083 262 sense = GPIO_PIN_CNF_SENSE_Low << GPIO_PIN_CNF_SENSE_Pos;
Rohit Grover 46:2bfbbe290083 263 }
Rohit Grover 46:2bfbbe290083 264 else
Rohit Grover 46:2bfbbe290083 265 {
Rohit Grover 46:2bfbbe290083 266 sense = GPIO_PIN_CNF_SENSE_High << GPIO_PIN_CNF_SENSE_Pos;
Rohit Grover 46:2bfbbe290083 267 mp_users[user_id].sense_high_pins |= pin_mask;
Rohit Grover 46:2bfbbe290083 268 }
Rohit Grover 46:2bfbbe290083 269
Rohit Grover 46:2bfbbe290083 270 NRF_GPIO->PIN_CNF[pin_no] &= ~GPIO_PIN_CNF_SENSE_Msk;
Rohit Grover 46:2bfbbe290083 271 NRF_GPIO->PIN_CNF[pin_no] |= sense;
Rohit Grover 46:2bfbbe290083 272 }
Rohit Grover 46:2bfbbe290083 273 }
Rohit Grover 46:2bfbbe290083 274
Rohit Grover 46:2bfbbe290083 275 return NRF_SUCCESS;
Rohit Grover 46:2bfbbe290083 276 }
Rohit Grover 46:2bfbbe290083 277
Rohit Grover 46:2bfbbe290083 278
Rohit Grover 46:2bfbbe290083 279 uint32_t app_gpiote_user_disable(app_gpiote_user_id_t user_id)
Rohit Grover 46:2bfbbe290083 280 {
Rohit Grover 46:2bfbbe290083 281 // Check state and parameters.
Rohit Grover 46:2bfbbe290083 282 if (mp_users == NULL)
Rohit Grover 46:2bfbbe290083 283 {
Rohit Grover 46:2bfbbe290083 284 return NRF_ERROR_INVALID_STATE;
Rohit Grover 46:2bfbbe290083 285 }
Rohit Grover 46:2bfbbe290083 286 if (user_id >= m_user_count)
Rohit Grover 46:2bfbbe290083 287 {
Rohit Grover 46:2bfbbe290083 288 return NRF_ERROR_INVALID_PARAM;
Rohit Grover 46:2bfbbe290083 289 }
Rohit Grover 46:2bfbbe290083 290
Rohit Grover 46:2bfbbe290083 291 // Disable sensing for all pins for specified user.
Rohit Grover 46:2bfbbe290083 292 pins_sense_disable(user_id);
Rohit Grover 46:2bfbbe290083 293
Rohit Grover 46:2bfbbe290083 294 // Disable user.
Rohit Grover 46:2bfbbe290083 295 m_enabled_users_mask &= ~(1UL << user_id);
Rohit Grover 46:2bfbbe290083 296 if (m_enabled_users_mask == 0)
Rohit Grover 46:2bfbbe290083 297 {
Rohit Grover 46:2bfbbe290083 298 NRF_GPIOTE->INTENCLR = GPIOTE_INTENSET_PORT_Msk;
Rohit Grover 46:2bfbbe290083 299 }
Rohit Grover 46:2bfbbe290083 300
Rohit Grover 46:2bfbbe290083 301 return NRF_SUCCESS;
Rohit Grover 46:2bfbbe290083 302 }
Rohit Grover 46:2bfbbe290083 303
Rohit Grover 46:2bfbbe290083 304
Rohit Grover 46:2bfbbe290083 305 uint32_t app_gpiote_pins_state_get(app_gpiote_user_id_t user_id, uint32_t * p_pins)
Rohit Grover 46:2bfbbe290083 306 {
Rohit Grover 46:2bfbbe290083 307 gpiote_user_t * p_user;
Rohit Grover 46:2bfbbe290083 308
Rohit Grover 46:2bfbbe290083 309 // Check state and parameters.
Rohit Grover 46:2bfbbe290083 310 if (mp_users == NULL)
Rohit Grover 46:2bfbbe290083 311 {
Rohit Grover 46:2bfbbe290083 312 return NRF_ERROR_INVALID_STATE;
Rohit Grover 46:2bfbbe290083 313 }
Rohit Grover 46:2bfbbe290083 314 if (user_id >= m_user_count)
Rohit Grover 46:2bfbbe290083 315 {
Rohit Grover 46:2bfbbe290083 316 return NRF_ERROR_INVALID_PARAM;
Rohit Grover 46:2bfbbe290083 317 }
Rohit Grover 46:2bfbbe290083 318
Rohit Grover 46:2bfbbe290083 319 // Get pins.
Rohit Grover 46:2bfbbe290083 320 p_user = &mp_users[user_id];
Rohit Grover 46:2bfbbe290083 321 *p_pins = NRF_GPIO->IN & p_user->pins_mask;
Rohit Grover 46:2bfbbe290083 322
Rohit Grover 46:2bfbbe290083 323 return NRF_SUCCESS;
Rohit Grover 46:2bfbbe290083 324 }
Rohit Grover 46:2bfbbe290083 325
Rohit Grover 46:2bfbbe290083 326 #if defined(SVCALL_AS_NORMAL_FUNCTION) || defined(SER_CONNECTIVITY)
Rohit Grover 46:2bfbbe290083 327 uint32_t app_gpiote_input_event_handler_register(const uint8_t channel,
Rohit Grover 46:2bfbbe290083 328 const uint32_t pin,
Rohit Grover 46:2bfbbe290083 329 const uint32_t polarity,
Rohit Grover 46:2bfbbe290083 330 app_gpiote_input_event_handler_t event_handler)
Rohit Grover 46:2bfbbe290083 331 {
Rohit Grover 46:2bfbbe290083 332 (void)sense_level_toggle(NULL, pin);
Rohit Grover 46:2bfbbe290083 333 return NRF_ERROR_NOT_SUPPORTED;
Rohit Grover 46:2bfbbe290083 334 }
Rohit Grover 46:2bfbbe290083 335
Rohit Grover 46:2bfbbe290083 336 uint32_t app_gpiote_input_event_handler_unregister(const uint8_t channel)
Rohit Grover 46:2bfbbe290083 337 {
Rohit Grover 46:2bfbbe290083 338 return NRF_ERROR_NOT_SUPPORTED;
Rohit Grover 46:2bfbbe290083 339 }
Rohit Grover 46:2bfbbe290083 340
Rohit Grover 46:2bfbbe290083 341 uint32_t app_gpiote_end_irq_event_handler_register(app_gpiote_input_event_handler_t event_handler)
Rohit Grover 46:2bfbbe290083 342 {
Rohit Grover 46:2bfbbe290083 343 return NRF_ERROR_NOT_SUPPORTED;
Rohit Grover 46:2bfbbe290083 344 }
Rohit Grover 46:2bfbbe290083 345
Rohit Grover 46:2bfbbe290083 346 uint32_t app_gpiote_end_irq_event_handler_unregister(void)
Rohit Grover 46:2bfbbe290083 347 {
Rohit Grover 46:2bfbbe290083 348 return NRF_ERROR_NOT_SUPPORTED;
Rohit Grover 46:2bfbbe290083 349 }
Rohit Grover 46:2bfbbe290083 350
Rohit Grover 46:2bfbbe290083 351 uint32_t app_gpiote_enable_interrupts(void)
Rohit Grover 46:2bfbbe290083 352 {
Rohit Grover 46:2bfbbe290083 353 return NRF_ERROR_NOT_SUPPORTED;
Rohit Grover 46:2bfbbe290083 354 }
Rohit Grover 46:2bfbbe290083 355
Rohit Grover 46:2bfbbe290083 356 uint32_t app_gpiote_disable_interrupts(void)
Rohit Grover 46:2bfbbe290083 357 {
Rohit Grover 46:2bfbbe290083 358 return NRF_ERROR_NOT_SUPPORTED;
Rohit Grover 46:2bfbbe290083 359 }
Rohit Grover 46:2bfbbe290083 360 #endif // SVCALL_AS_NORMAL_FUNCTION || SER_CONNECTIVITY