MacroRat / MouseCode

Mouse code for the MacroRat

Dependencies:   ITG3200 QEI

mbed-dev/targets/TARGET_ARM_SSG/TARGET_BEETLE/device/apb_dualtimer.c@18:6a4db94011d3, 2017-05-14 (annotated)

Committer:
sahilmgandhi
Date:
Sun May 14 23:18:57 2017 +0000
Revision:
18:6a4db94011d3
Publishing again

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sahilmgandhi 18:6a4db94011d3 1 /* mbed Microcontroller Library
sahilmgandhi 18:6a4db94011d3 2 * Copyright (c) 2016 ARM Limited
sahilmgandhi 18:6a4db94011d3 3 *
sahilmgandhi 18:6a4db94011d3 4 * Licensed under the Apache License, Version 2.0 (the "License");
sahilmgandhi 18:6a4db94011d3 5 * you may not use this file except in compliance with the License.
sahilmgandhi 18:6a4db94011d3 6 * You may obtain a copy of the License at
sahilmgandhi 18:6a4db94011d3 7 *
sahilmgandhi 18:6a4db94011d3 8 * http://www.apache.org/licenses/LICENSE-2.0
sahilmgandhi 18:6a4db94011d3 9 *
sahilmgandhi 18:6a4db94011d3 10 * Unless required by applicable law or agreed to in writing, software
sahilmgandhi 18:6a4db94011d3 11 * distributed under the License is distributed on an "AS IS" BASIS,
sahilmgandhi 18:6a4db94011d3 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
sahilmgandhi 18:6a4db94011d3 13 * See the License for the specific language governing permissions and
sahilmgandhi 18:6a4db94011d3 14 * limitations under the License.
sahilmgandhi 18:6a4db94011d3 15 */
sahilmgandhi 18:6a4db94011d3 16 #include "cmsis.h"
sahilmgandhi 18:6a4db94011d3 17 #include "apb_dualtimer.h"
sahilmgandhi 18:6a4db94011d3 18
sahilmgandhi 18:6a4db94011d3 19 /* DualTimer Private Data */
sahilmgandhi 18:6a4db94011d3 20 typedef struct {
sahilmgandhi 18:6a4db94011d3 21 /* DualTimer 1 Definition */
sahilmgandhi 18:6a4db94011d3 22 CMSDK_DUALTIMER_SINGLE_TypeDef *dualtimer1;
sahilmgandhi 18:6a4db94011d3 23 /* DualTimer 2 Definition */
sahilmgandhi 18:6a4db94011d3 24 CMSDK_DUALTIMER_SINGLE_TypeDef *dualtimer2;
sahilmgandhi 18:6a4db94011d3 25 /* Dual Timer IRQn */
sahilmgandhi 18:6a4db94011d3 26 uint32_t dualtimerIRQn;
sahilmgandhi 18:6a4db94011d3 27 /* DualTimer 1 Reload Value */
sahilmgandhi 18:6a4db94011d3 28 uint32_t dualtimer1Reload;
sahilmgandhi 18:6a4db94011d3 29 /* DualTimer 2 Reload Value */
sahilmgandhi 18:6a4db94011d3 30 uint32_t dualtimer2Reload;
sahilmgandhi 18:6a4db94011d3 31 /* Timer state */
sahilmgandhi 18:6a4db94011d3 32 uint32_t state;
sahilmgandhi 18:6a4db94011d3 33 } apb_dualtimer_t;
sahilmgandhi 18:6a4db94011d3 34
sahilmgandhi 18:6a4db94011d3 35 /* Timer state definitions */
sahilmgandhi 18:6a4db94011d3 36 #define DUALTIMER_INITIALIZED (1)
sahilmgandhi 18:6a4db94011d3 37 #define DUALTIMER_ENABLED (1 << 1)
sahilmgandhi 18:6a4db94011d3 38
sahilmgandhi 18:6a4db94011d3 39 /*
sahilmgandhi 18:6a4db94011d3 40 * This Timer is written for MBED OS and keeps count
sahilmgandhi 18:6a4db94011d3 41 * of the ticks. All the elaboration logic is demanded
sahilmgandhi 18:6a4db94011d3 42 * to the upper layers.
sahilmgandhi 18:6a4db94011d3 43 */
sahilmgandhi 18:6a4db94011d3 44 #define DUALTIMER_MAX_VALUE 0xFFFFFFFF
sahilmgandhi 18:6a4db94011d3 45 #define DUALTIMER_TICKS_US (SystemCoreClock/1000000)
sahilmgandhi 18:6a4db94011d3 46
sahilmgandhi 18:6a4db94011d3 47 /* Dual Timers Array */
sahilmgandhi 18:6a4db94011d3 48 static apb_dualtimer_t DualTimers[NUM_DUALTIMERS];
sahilmgandhi 18:6a4db94011d3 49
sahilmgandhi 18:6a4db94011d3 50 /*
sahilmgandhi 18:6a4db94011d3 51 * DualTimer_Initialize(): Initializes a hardware timer
sahilmgandhi 18:6a4db94011d3 52 * timer: timer to be Initialized
sahilmgandhi 18:6a4db94011d3 53 * time_us: timer reload value in us - 0 to reload to timer max value
sahilmgandhi 18:6a4db94011d3 54 * time_us = ticks_value / TIMER_TICK_US
sahilmgandhi 18:6a4db94011d3 55 */
sahilmgandhi 18:6a4db94011d3 56 void DualTimer_Initialize(uint32_t timer, uint32_t time_us)
sahilmgandhi 18:6a4db94011d3 57 {
sahilmgandhi 18:6a4db94011d3 58 uint32_t reload = 0;
sahilmgandhi 18:6a4db94011d3 59
sahilmgandhi 18:6a4db94011d3 60 if (timer < NUM_DUALTIMERS)
sahilmgandhi 18:6a4db94011d3 61 {
sahilmgandhi 18:6a4db94011d3 62 if (time_us == 0)
sahilmgandhi 18:6a4db94011d3 63 reload = DUALTIMER_MAX_VALUE;
sahilmgandhi 18:6a4db94011d3 64 else
sahilmgandhi 18:6a4db94011d3 65 reload = (time_us) * DUALTIMER_TICKS_US;
sahilmgandhi 18:6a4db94011d3 66
sahilmgandhi 18:6a4db94011d3 67 switch(timer) {
sahilmgandhi 18:6a4db94011d3 68 case 0: DualTimers[timer].dualtimer1 = CMSDK_DUALTIMER1;
sahilmgandhi 18:6a4db94011d3 69 DualTimers[timer].dualtimer2 = CMSDK_DUALTIMER2;
sahilmgandhi 18:6a4db94011d3 70 DualTimers[timer].dualtimerIRQn = DUALTIMER_IRQn;
sahilmgandhi 18:6a4db94011d3 71 DualTimers[timer].dualtimer1Reload = reload;
sahilmgandhi 18:6a4db94011d3 72 DualTimers[timer].dualtimer2Reload = reload;
sahilmgandhi 18:6a4db94011d3 73 DualTimers[timer].state = DUALTIMER_INITIALIZED;
sahilmgandhi 18:6a4db94011d3 74 default: break;
sahilmgandhi 18:6a4db94011d3 75 }
sahilmgandhi 18:6a4db94011d3 76 }
sahilmgandhi 18:6a4db94011d3 77 }
sahilmgandhi 18:6a4db94011d3 78
sahilmgandhi 18:6a4db94011d3 79 /*
sahilmgandhi 18:6a4db94011d3 80 * DualTimer_ReturnMode(): returns the correct mode for Dual Timer Control
sahilmgandhi 18:6a4db94011d3 81 * mode: mode set by user
sahilmgandhi 18:6a4db94011d3 82 * @return: mode for TimeControl register
sahilmgandhi 18:6a4db94011d3 83 */
sahilmgandhi 18:6a4db94011d3 84 uint32_t DualTimer_ReturnMode(timerenable_t mode)
sahilmgandhi 18:6a4db94011d3 85 {
sahilmgandhi 18:6a4db94011d3 86 uint32_t return_mode = 0;
sahilmgandhi 18:6a4db94011d3 87 /* Check Interrupt Enable */
sahilmgandhi 18:6a4db94011d3 88 if (((mode & DUALTIMER_INT) >> DUALTIMER_INT_MASK) == 1)
sahilmgandhi 18:6a4db94011d3 89 return_mode |= CMSDK_DUALTIMER_CTRL_INTEN_Msk;
sahilmgandhi 18:6a4db94011d3 90 /* Check 32 bit Counter */
sahilmgandhi 18:6a4db94011d3 91 if (((mode & DUALTIMER_COUNT_32) >> DUALTIMER_COUNT_32_MASK) == 1)
sahilmgandhi 18:6a4db94011d3 92 return_mode |= CMSDK_DUALTIMER_CTRL_SIZE_Msk;
sahilmgandhi 18:6a4db94011d3 93 /* Check Periodic Mode */
sahilmgandhi 18:6a4db94011d3 94 if (((mode & DUALTIMER_PERIODIC) >> DUALTIMER_PERIODIC_MASK) == 1)
sahilmgandhi 18:6a4db94011d3 95 return_mode |= CMSDK_DUALTIMER_CTRL_MODE_Msk;
sahilmgandhi 18:6a4db94011d3 96 /* Check OneShot Mode */
sahilmgandhi 18:6a4db94011d3 97 if (((mode & DUALTIMER_ONESHOT) >> DUALTIMER_ONESHOT_MASK) == 1)
sahilmgandhi 18:6a4db94011d3 98 return_mode |= CMSDK_DUALTIMER_CTRL_ONESHOOT_Msk;
sahilmgandhi 18:6a4db94011d3 99
sahilmgandhi 18:6a4db94011d3 100 return return_mode;
sahilmgandhi 18:6a4db94011d3 101 }
sahilmgandhi 18:6a4db94011d3 102
sahilmgandhi 18:6a4db94011d3 103 /*
sahilmgandhi 18:6a4db94011d3 104 * DualTimer_Enable(): Enables a hardware timer
sahilmgandhi 18:6a4db94011d3 105 * timer: timer to be enabled
sahilmgandhi 18:6a4db94011d3 106 * mode: enable mode
sahilmgandhi 18:6a4db94011d3 107 */
sahilmgandhi 18:6a4db94011d3 108 void DualTimer_Enable(uint32_t timer, timerenable_t mode)
sahilmgandhi 18:6a4db94011d3 109 {
sahilmgandhi 18:6a4db94011d3 110 uint32_t dualtimerControl = 0;
sahilmgandhi 18:6a4db94011d3 111 /* The timer has to be contained in a valid range */
sahilmgandhi 18:6a4db94011d3 112 if (timer < NUM_DUALTIMERS) {
sahilmgandhi 18:6a4db94011d3 113 /* Timer has to be already initialized */
sahilmgandhi 18:6a4db94011d3 114 if (DualTimers[timer].state == DUALTIMER_INITIALIZED) {
sahilmgandhi 18:6a4db94011d3 115 /* Disable Timer */
sahilmgandhi 18:6a4db94011d3 116 (DualTimers[timer].dualtimer1)->TimerControl = 0x0;
sahilmgandhi 18:6a4db94011d3 117 (DualTimers[timer].dualtimer2)->TimerControl = 0x0;
sahilmgandhi 18:6a4db94011d3 118 /* Reload Value */
sahilmgandhi 18:6a4db94011d3 119 (DualTimers[timer].dualtimer1)->TimerLoad =
sahilmgandhi 18:6a4db94011d3 120 DualTimers[timer].dualtimer1Reload;
sahilmgandhi 18:6a4db94011d3 121 (DualTimers[timer].dualtimer2)->TimerLoad =
sahilmgandhi 18:6a4db94011d3 122 DualTimers[timer].dualtimer2Reload;
sahilmgandhi 18:6a4db94011d3 123 /* Set up Dual Timer Control */
sahilmgandhi 18:6a4db94011d3 124 dualtimerControl = DualTimer_ReturnMode(mode);
sahilmgandhi 18:6a4db94011d3 125 (DualTimers[timer].dualtimer1)->TimerControl = dualtimerControl;
sahilmgandhi 18:6a4db94011d3 126 (DualTimers[timer].dualtimer2)->TimerControl = dualtimerControl;
sahilmgandhi 18:6a4db94011d3 127 /* Enable Counter */
sahilmgandhi 18:6a4db94011d3 128 (DualTimers[timer].dualtimer1)->TimerControl |=
sahilmgandhi 18:6a4db94011d3 129 CMSDK_DUALTIMER_CTRL_EN_Msk;
sahilmgandhi 18:6a4db94011d3 130 (DualTimers[timer].dualtimer2)->TimerControl |=
sahilmgandhi 18:6a4db94011d3 131 CMSDK_DUALTIMER_CTRL_EN_Msk;
sahilmgandhi 18:6a4db94011d3 132 /* Change timer state */
sahilmgandhi 18:6a4db94011d3 133 DualTimers[timer].state |= DUALTIMER_ENABLED;
sahilmgandhi 18:6a4db94011d3 134 }
sahilmgandhi 18:6a4db94011d3 135 }
sahilmgandhi 18:6a4db94011d3 136 }
sahilmgandhi 18:6a4db94011d3 137
sahilmgandhi 18:6a4db94011d3 138 /*
sahilmgandhi 18:6a4db94011d3 139 * DualTimer_Disable(): Disables a hardware timer
sahilmgandhi 18:6a4db94011d3 140 * timer: timer to be disabled
sahilmgandhi 18:6a4db94011d3 141 * dis_timer: 0 both - 1 dual timer 1 - 2 dual timer 2
sahilmgandhi 18:6a4db94011d3 142 */
sahilmgandhi 18:6a4db94011d3 143 void DualTimer_Disable(uint32_t timer, uint32_t dis_timer)
sahilmgandhi 18:6a4db94011d3 144 {
sahilmgandhi 18:6a4db94011d3 145 /* The timer has to be contained in a valid range */
sahilmgandhi 18:6a4db94011d3 146 if (timer < NUM_DUALTIMERS) {
sahilmgandhi 18:6a4db94011d3 147 /* Timer has to be already initialized and enabled */
sahilmgandhi 18:6a4db94011d3 148 if (DualTimers[timer].state == (DUALTIMER_INITIALIZED | DUALTIMER_ENABLED)) {
sahilmgandhi 18:6a4db94011d3 149 /* Disable Timer */
sahilmgandhi 18:6a4db94011d3 150 switch (dis_timer)
sahilmgandhi 18:6a4db94011d3 151 {
sahilmgandhi 18:6a4db94011d3 152 case 0: (DualTimers[timer].dualtimer1)->TimerControl = 0x0;
sahilmgandhi 18:6a4db94011d3 153 (DualTimers[timer].dualtimer2)->TimerControl = 0x0;
sahilmgandhi 18:6a4db94011d3 154 break;
sahilmgandhi 18:6a4db94011d3 155 case 1: (DualTimers[timer].dualtimer1)->TimerControl = 0x0;
sahilmgandhi 18:6a4db94011d3 156 break;
sahilmgandhi 18:6a4db94011d3 157 case 2: (DualTimers[timer].dualtimer2)->TimerControl = 0x0;
sahilmgandhi 18:6a4db94011d3 158 break;
sahilmgandhi 18:6a4db94011d3 159 default: break;
sahilmgandhi 18:6a4db94011d3 160 }
sahilmgandhi 18:6a4db94011d3 161 /* Change timer state */
sahilmgandhi 18:6a4db94011d3 162 DualTimers[timer].state = DUALTIMER_INITIALIZED;
sahilmgandhi 18:6a4db94011d3 163 }
sahilmgandhi 18:6a4db94011d3 164 }
sahilmgandhi 18:6a4db94011d3 165 }
sahilmgandhi 18:6a4db94011d3 166
sahilmgandhi 18:6a4db94011d3 167 /*
sahilmgandhi 18:6a4db94011d3 168 * DualTimer_isEnabled(): verifies if a timer is enabled
sahilmgandhi 18:6a4db94011d3 169 * timer: timer to be verified
sahilmgandhi 18:6a4db94011d3 170 * @return: 0 disabled - 1 enabled
sahilmgandhi 18:6a4db94011d3 171 */
sahilmgandhi 18:6a4db94011d3 172 uint32_t DualTimer_isEnabled(uint32_t timer)
sahilmgandhi 18:6a4db94011d3 173 {
sahilmgandhi 18:6a4db94011d3 174 /* The timer has to be contained in a valid range */
sahilmgandhi 18:6a4db94011d3 175 if (timer < NUM_DUALTIMERS) {
sahilmgandhi 18:6a4db94011d3 176 /* Timer has to be already initialized and enabled */
sahilmgandhi 18:6a4db94011d3 177 if (DualTimers[timer].state == (DUALTIMER_INITIALIZED | DUALTIMER_ENABLED))
sahilmgandhi 18:6a4db94011d3 178 return 1;
sahilmgandhi 18:6a4db94011d3 179 } else {
sahilmgandhi 18:6a4db94011d3 180 return 0;
sahilmgandhi 18:6a4db94011d3 181 }
sahilmgandhi 18:6a4db94011d3 182 return 0;
sahilmgandhi 18:6a4db94011d3 183 }
sahilmgandhi 18:6a4db94011d3 184
sahilmgandhi 18:6a4db94011d3 185 /*
sahilmgandhi 18:6a4db94011d3 186 * DualTimer_Read_1(): provides single timer 1 VALUE
sahilmgandhi 18:6a4db94011d3 187 * timer: timer to be read
sahilmgandhi 18:6a4db94011d3 188 * @return: timer VALUE
sahilmgandhi 18:6a4db94011d3 189 */
sahilmgandhi 18:6a4db94011d3 190 uint32_t DualTimer_Read_1(uint32_t timer)
sahilmgandhi 18:6a4db94011d3 191 {
sahilmgandhi 18:6a4db94011d3 192 uint32_t return_value = 0;
sahilmgandhi 18:6a4db94011d3 193 /* Verify if the Timer is enabled */
sahilmgandhi 18:6a4db94011d3 194 if (DualTimer_isEnabled(timer) == 1) {
sahilmgandhi 18:6a4db94011d3 195 return_value = (DualTimers[timer].dualtimer1Reload
sahilmgandhi 18:6a4db94011d3 196 - (DualTimers[timer].dualtimer1)->TimerValue)
sahilmgandhi 18:6a4db94011d3 197 / DUALTIMER_TICKS_US;
sahilmgandhi 18:6a4db94011d3 198 }
sahilmgandhi 18:6a4db94011d3 199
sahilmgandhi 18:6a4db94011d3 200 return return_value;
sahilmgandhi 18:6a4db94011d3 201 }
sahilmgandhi 18:6a4db94011d3 202
sahilmgandhi 18:6a4db94011d3 203 /*
sahilmgandhi 18:6a4db94011d3 204 * DualTimer_Read_2(): provides single timer 2 VALUE
sahilmgandhi 18:6a4db94011d3 205 * timer: timer to be read
sahilmgandhi 18:6a4db94011d3 206 * @return: timer VALUE
sahilmgandhi 18:6a4db94011d3 207 */
sahilmgandhi 18:6a4db94011d3 208 uint32_t DualTimer_Read_2(uint32_t timer)
sahilmgandhi 18:6a4db94011d3 209 {
sahilmgandhi 18:6a4db94011d3 210 uint32_t return_value = 0;
sahilmgandhi 18:6a4db94011d3 211 /* Verify if the Timer is enabled */
sahilmgandhi 18:6a4db94011d3 212 if (DualTimer_isEnabled(timer) == 1) {
sahilmgandhi 18:6a4db94011d3 213 return_value = (DualTimers[timer].dualtimer2Reload
sahilmgandhi 18:6a4db94011d3 214 - (DualTimers[timer].dualtimer2)->TimerValue)
sahilmgandhi 18:6a4db94011d3 215 / DUALTIMER_TICKS_US;
sahilmgandhi 18:6a4db94011d3 216 }
sahilmgandhi 18:6a4db94011d3 217
sahilmgandhi 18:6a4db94011d3 218 return return_value;
sahilmgandhi 18:6a4db94011d3 219 }
sahilmgandhi 18:6a4db94011d3 220
sahilmgandhi 18:6a4db94011d3 221 /*
sahilmgandhi 18:6a4db94011d3 222 * DualTimer_SetInterrupt_1(): sets timer 1 Interrupt
sahilmgandhi 18:6a4db94011d3 223 * timer: timer on which interrupt is set
sahilmgandhi 18:6a4db94011d3 224 * time_us: reloading value us
sahilmgandhi 18:6a4db94011d3 225 * mode: enable mode
sahilmgandhi 18:6a4db94011d3 226 */
sahilmgandhi 18:6a4db94011d3 227 void DualTimer_SetInterrupt_1(uint32_t timer, uint32_t time_us,
sahilmgandhi 18:6a4db94011d3 228 timerenable_t mode)
sahilmgandhi 18:6a4db94011d3 229 {
sahilmgandhi 18:6a4db94011d3 230 uint32_t dualtimerControl = 0;
sahilmgandhi 18:6a4db94011d3 231 uint32_t load_time_us = 0;
sahilmgandhi 18:6a4db94011d3 232 /* Verify if the Timer is enabled */
sahilmgandhi 18:6a4db94011d3 233 if (DualTimer_isEnabled(timer) == 1) {
sahilmgandhi 18:6a4db94011d3 234 /* Disable Timer */
sahilmgandhi 18:6a4db94011d3 235 DualTimer_Disable(timer, SINGLETIMER1);
sahilmgandhi 18:6a4db94011d3 236 /* Set up Dual Timer Control */
sahilmgandhi 18:6a4db94011d3 237 dualtimerControl = DualTimer_ReturnMode(mode);
sahilmgandhi 18:6a4db94011d3 238 (DualTimers[timer].dualtimer1)->TimerControl =
sahilmgandhi 18:6a4db94011d3 239 CMSDK_DUALTIMER_CTRL_INTEN_Msk
sahilmgandhi 18:6a4db94011d3 240 | dualtimerControl;
sahilmgandhi 18:6a4db94011d3 241
sahilmgandhi 18:6a4db94011d3 242 /* Check time us condition */
sahilmgandhi 18:6a4db94011d3 243 if(time_us == DUALTIMER_DEFAULT_RELOAD)
sahilmgandhi 18:6a4db94011d3 244 load_time_us = DUALTIMER_MAX_VALUE;
sahilmgandhi 18:6a4db94011d3 245 else
sahilmgandhi 18:6a4db94011d3 246 load_time_us = time_us * DUALTIMER_TICKS_US;
sahilmgandhi 18:6a4db94011d3 247
sahilmgandhi 18:6a4db94011d3 248 /* Reload Value */
sahilmgandhi 18:6a4db94011d3 249 DualTimers[timer].dualtimer1Reload = load_time_us;
sahilmgandhi 18:6a4db94011d3 250 (DualTimers[timer].dualtimer1)->TimerLoad =
sahilmgandhi 18:6a4db94011d3 251 DualTimers[timer].dualtimer1Reload;
sahilmgandhi 18:6a4db94011d3 252 /* Enable Counter */
sahilmgandhi 18:6a4db94011d3 253 (DualTimers[timer].dualtimer1)->TimerControl |=
sahilmgandhi 18:6a4db94011d3 254 CMSDK_DUALTIMER_CTRL_EN_Msk;
sahilmgandhi 18:6a4db94011d3 255 /* Change timer state */
sahilmgandhi 18:6a4db94011d3 256 DualTimers[timer].state |= DUALTIMER_ENABLED;
sahilmgandhi 18:6a4db94011d3 257 }
sahilmgandhi 18:6a4db94011d3 258 }
sahilmgandhi 18:6a4db94011d3 259
sahilmgandhi 18:6a4db94011d3 260 /*
sahilmgandhi 18:6a4db94011d3 261 * DualTimer_SetInterrupt_2(): sets timer 2 Interrupt
sahilmgandhi 18:6a4db94011d3 262 * timer: timer on which interrupt is set
sahilmgandhi 18:6a4db94011d3 263 * time_us: reloading value us
sahilmgandhi 18:6a4db94011d3 264 * mode: enable mode
sahilmgandhi 18:6a4db94011d3 265 */
sahilmgandhi 18:6a4db94011d3 266 void DualTimer_SetInterrupt_2(uint32_t timer, uint32_t time_us,
sahilmgandhi 18:6a4db94011d3 267 timerenable_t mode)
sahilmgandhi 18:6a4db94011d3 268 {
sahilmgandhi 18:6a4db94011d3 269 uint32_t dualtimerControl = 0;
sahilmgandhi 18:6a4db94011d3 270 uint32_t load_time_us = 0;
sahilmgandhi 18:6a4db94011d3 271 /* Verify if the Timer is enabled */
sahilmgandhi 18:6a4db94011d3 272 if (DualTimer_isEnabled(timer) == 1) {
sahilmgandhi 18:6a4db94011d3 273 /* Disable Timer */
sahilmgandhi 18:6a4db94011d3 274 DualTimer_Disable(timer, SINGLETIMER2);
sahilmgandhi 18:6a4db94011d3 275 /* Set up Dual Timer Control */
sahilmgandhi 18:6a4db94011d3 276 dualtimerControl = DualTimer_ReturnMode(mode);
sahilmgandhi 18:6a4db94011d3 277 (DualTimers[timer].dualtimer2)->TimerControl =
sahilmgandhi 18:6a4db94011d3 278 CMSDK_DUALTIMER_CTRL_INTEN_Msk
sahilmgandhi 18:6a4db94011d3 279 | dualtimerControl;
sahilmgandhi 18:6a4db94011d3 280
sahilmgandhi 18:6a4db94011d3 281 /* Check time us condition */
sahilmgandhi 18:6a4db94011d3 282 if(time_us == DUALTIMER_DEFAULT_RELOAD)
sahilmgandhi 18:6a4db94011d3 283 load_time_us = DUALTIMER_MAX_VALUE;
sahilmgandhi 18:6a4db94011d3 284 else
sahilmgandhi 18:6a4db94011d3 285 load_time_us = time_us * DUALTIMER_TICKS_US;
sahilmgandhi 18:6a4db94011d3 286
sahilmgandhi 18:6a4db94011d3 287 /* Reload Value */
sahilmgandhi 18:6a4db94011d3 288 DualTimers[timer].dualtimer2Reload = load_time_us;
sahilmgandhi 18:6a4db94011d3 289 (DualTimers[timer].dualtimer2)->TimerLoad =
sahilmgandhi 18:6a4db94011d3 290 DualTimers[timer].dualtimer2Reload;
sahilmgandhi 18:6a4db94011d3 291 /* Enable Counter */
sahilmgandhi 18:6a4db94011d3 292 (DualTimers[timer].dualtimer2)->TimerControl |=
sahilmgandhi 18:6a4db94011d3 293 CMSDK_DUALTIMER_CTRL_EN_Msk;
sahilmgandhi 18:6a4db94011d3 294 /* Change timer state */
sahilmgandhi 18:6a4db94011d3 295 DualTimers[timer].state |= DUALTIMER_ENABLED;
sahilmgandhi 18:6a4db94011d3 296 }
sahilmgandhi 18:6a4db94011d3 297 }
sahilmgandhi 18:6a4db94011d3 298
sahilmgandhi 18:6a4db94011d3 299 /*
sahilmgandhi 18:6a4db94011d3 300 * DualTimer_DisableInterrupt(): disables timer interrupts
sahilmgandhi 18:6a4db94011d3 301 * dualimer: dualtimer on which interrupt is disabled
sahilmgandhi 18:6a4db94011d3 302 * single_timer: single timer in the dualtimer on which
sahilmgandhi 18:6a4db94011d3 303 * interrupt is disabled
sahilmgandhi 18:6a4db94011d3 304 */
sahilmgandhi 18:6a4db94011d3 305 void DualTimer_DisableInterrupt(uint32_t dualtimer,
sahilmgandhi 18:6a4db94011d3 306 uint32_t single_timer)
sahilmgandhi 18:6a4db94011d3 307 {
sahilmgandhi 18:6a4db94011d3 308 /* Verify if the Timer is enabled */
sahilmgandhi 18:6a4db94011d3 309 if (DualTimer_isEnabled(dualtimer) == 1) {
sahilmgandhi 18:6a4db94011d3 310 switch(single_timer) {
sahilmgandhi 18:6a4db94011d3 311 case SINGLETIMER1:
sahilmgandhi 18:6a4db94011d3 312 /* Disable Interrupt for single timer 1 */
sahilmgandhi 18:6a4db94011d3 313 (DualTimers[dualtimer].dualtimer1)->TimerControl &=
sahilmgandhi 18:6a4db94011d3 314 CMSDK_DUALTIMER_CTRL_EN_Msk;
sahilmgandhi 18:6a4db94011d3 315 break;
sahilmgandhi 18:6a4db94011d3 316 case SINGLETIMER2:
sahilmgandhi 18:6a4db94011d3 317 /* Disable Interrupt for single timer 2 */
sahilmgandhi 18:6a4db94011d3 318 (DualTimers[dualtimer].dualtimer2)->TimerControl &=
sahilmgandhi 18:6a4db94011d3 319 CMSDK_DUALTIMER_CTRL_EN_Msk;
sahilmgandhi 18:6a4db94011d3 320 break;
sahilmgandhi 18:6a4db94011d3 321 case ALL_SINGLETIMERS:
sahilmgandhi 18:6a4db94011d3 322 /* Disable Interrupt for single timer 1 */
sahilmgandhi 18:6a4db94011d3 323 (DualTimers[dualtimer].dualtimer1)->TimerControl &=
sahilmgandhi 18:6a4db94011d3 324 CMSDK_DUALTIMER_CTRL_EN_Msk;
sahilmgandhi 18:6a4db94011d3 325 /* Disable Interrupt for single timer 2 */
sahilmgandhi 18:6a4db94011d3 326 (DualTimers[dualtimer].dualtimer2)->TimerControl &=
sahilmgandhi 18:6a4db94011d3 327 CMSDK_DUALTIMER_CTRL_EN_Msk;
sahilmgandhi 18:6a4db94011d3 328 break;
sahilmgandhi 18:6a4db94011d3 329 default:
sahilmgandhi 18:6a4db94011d3 330 break;
sahilmgandhi 18:6a4db94011d3 331 }
sahilmgandhi 18:6a4db94011d3 332 }
sahilmgandhi 18:6a4db94011d3 333 }
sahilmgandhi 18:6a4db94011d3 334
sahilmgandhi 18:6a4db94011d3 335 /*
sahilmgandhi 18:6a4db94011d3 336 * DualTimer_ClearInterrupt(): clear timer interrupt
sahilmgandhi 18:6a4db94011d3 337 * timer: timer on which interrupt needs to be cleared
sahilmgandhi 18:6a4db94011d3 338 */
sahilmgandhi 18:6a4db94011d3 339 void DualTimer_ClearInterrupt(uint32_t timer)
sahilmgandhi 18:6a4db94011d3 340 {
sahilmgandhi 18:6a4db94011d3 341 /* Verify if the Timer is enabled */
sahilmgandhi 18:6a4db94011d3 342 if (DualTimer_isEnabled(timer) == 1) {
sahilmgandhi 18:6a4db94011d3 343 /* Clear Interrupt */
sahilmgandhi 18:6a4db94011d3 344 (DualTimers[timer].dualtimer1)->TimerIntClr =
sahilmgandhi 18:6a4db94011d3 345 CMSDK_DUALTIMER_INTCLR_Msk;
sahilmgandhi 18:6a4db94011d3 346 (DualTimers[timer].dualtimer2)->TimerIntClr =
sahilmgandhi 18:6a4db94011d3 347 CMSDK_DUALTIMER_INTCLR_Msk;
sahilmgandhi 18:6a4db94011d3 348 }
sahilmgandhi 18:6a4db94011d3 349 }
sahilmgandhi 18:6a4db94011d3 350
sahilmgandhi 18:6a4db94011d3 351 /*
sahilmgandhi 18:6a4db94011d3 352 * DualTimer_GetIRQn(): returns IRQn of a DualTimer
sahilmgandhi 18:6a4db94011d3 353 * timer: timer on which IRQn is defined - 0 if it is not defined
sahilmgandhi 18:6a4db94011d3 354 */
sahilmgandhi 18:6a4db94011d3 355 uint32_t DualTimer_GetIRQn(uint32_t timer)
sahilmgandhi 18:6a4db94011d3 356 {
sahilmgandhi 18:6a4db94011d3 357 /* Verify if the Timer is enabled */
sahilmgandhi 18:6a4db94011d3 358 if (DualTimer_isEnabled(timer) == 1) {
sahilmgandhi 18:6a4db94011d3 359 return DualTimers[timer].dualtimerIRQn;
sahilmgandhi 18:6a4db94011d3 360 }
sahilmgandhi 18:6a4db94011d3 361 return 0;
sahilmgandhi 18:6a4db94011d3 362 }
sahilmgandhi 18:6a4db94011d3 363
sahilmgandhi 18:6a4db94011d3 364 /*
sahilmgandhi 18:6a4db94011d3 365 * DualTimer_GetIRQInfo(): provides the single timer who caused
sahilmgandhi 18:6a4db94011d3 366 * the interrupt.
sahilmgandhi 18:6a4db94011d3 367 * dualtimer: dualtimer that triggered the IRQ
sahilmgandhi 18:6a4db94011d3 368 * @return: a single timer - 0 if it is not defined
sahilmgandhi 18:6a4db94011d3 369 */
sahilmgandhi 18:6a4db94011d3 370 uint32_t DualTimer_GetIRQInfo(uint32_t timer)
sahilmgandhi 18:6a4db94011d3 371 {
sahilmgandhi 18:6a4db94011d3 372 /* Verify if the Timer is enabled */
sahilmgandhi 18:6a4db94011d3 373 if (DualTimer_isEnabled(timer) == 1) {
sahilmgandhi 18:6a4db94011d3 374 if((DualTimers[timer].dualtimer1)->TimerRIS)
sahilmgandhi 18:6a4db94011d3 375 return SINGLETIMER1;
sahilmgandhi 18:6a4db94011d3 376 else
sahilmgandhi 18:6a4db94011d3 377 return SINGLETIMER2;
sahilmgandhi 18:6a4db94011d3 378 }
sahilmgandhi 18:6a4db94011d3 379 return 0;
sahilmgandhi 18:6a4db94011d3 380 }
sahilmgandhi 18:6a4db94011d3 381
sahilmgandhi 18:6a4db94011d3 382 /*
sahilmgandhi 18:6a4db94011d3 383 * DualTimer_GetTicksUS(): returns the Ticks per us
sahilmgandhi 18:6a4db94011d3 384 * timer: timer associated with the Ticks per us
sahilmgandhi 18:6a4db94011d3 385 * @return: Ticks per us - 0 if the timer is disables
sahilmgandhi 18:6a4db94011d3 386 */
sahilmgandhi 18:6a4db94011d3 387 uint32_t DualTimer_GetTicksUS(uint32_t timer)
sahilmgandhi 18:6a4db94011d3 388 {
sahilmgandhi 18:6a4db94011d3 389 /* Verify if the Timer is enabled */
sahilmgandhi 18:6a4db94011d3 390 if (DualTimer_isEnabled(timer) == 1) {
sahilmgandhi 18:6a4db94011d3 391 return DUALTIMER_TICKS_US;
sahilmgandhi 18:6a4db94011d3 392 }
sahilmgandhi 18:6a4db94011d3 393 return 0;
sahilmgandhi 18:6a4db94011d3 394 }
sahilmgandhi 18:6a4db94011d3 395
sahilmgandhi 18:6a4db94011d3 396 /*
sahilmgandhi 18:6a4db94011d3 397 * DualTimer_GetReloadValue(): returns the load value of the selected
sahilmgandhi 18:6a4db94011d3 398 * singletimer.
sahilmgandhi 18:6a4db94011d3 399 * timer: timer associated with the Ticks per us
sahilmgandhi 18:6a4db94011d3 400 * singletimer: selected singletimer
sahilmgandhi 18:6a4db94011d3 401 * @return: reload value of the selected singletimer - 0 if timer is disabled
sahilmgandhi 18:6a4db94011d3 402 */
sahilmgandhi 18:6a4db94011d3 403 uint32_t DualTimer_GetReloadValue(uint32_t timer, uint32_t singletimer)
sahilmgandhi 18:6a4db94011d3 404 {
sahilmgandhi 18:6a4db94011d3 405 /* Verify if the Timer is enabled */
sahilmgandhi 18:6a4db94011d3 406 if (DualTimer_isEnabled(timer) == 1) {
sahilmgandhi 18:6a4db94011d3 407 if (singletimer == SINGLETIMER1)
sahilmgandhi 18:6a4db94011d3 408 return DualTimers[timer].dualtimer1Reload / DUALTIMER_TICKS_US;
sahilmgandhi 18:6a4db94011d3 409 else
sahilmgandhi 18:6a4db94011d3 410 return DualTimers[timer].dualtimer2Reload / DUALTIMER_TICKS_US;
sahilmgandhi 18:6a4db94011d3 411 }
sahilmgandhi 18:6a4db94011d3 412 return 0;
sahilmgandhi 18:6a4db94011d3 413 }