1 /*! 2 \file gd32f403_exti.h 3 \brief definitions for the EXTI 4 5 \version 2017-02-10, V1.0.0, firmware for GD32F403 6 \version 2018-12-25, V2.0.0, firmware for GD32F403 7 \version 2020-09-30, V2.1.0, firmware for GD32F403 8 */ 9 10 /* 11 Copyright (c) 2020, GigaDevice Semiconductor Inc. 12 13 Redistribution and use in source and binary forms, with or without modification, 14 are permitted provided that the following conditions are met: 15 16 1. Redistributions of source code must retain the above copyright notice, this 17 list of conditions and the following disclaimer. 18 2. Redistributions in binary form must reproduce the above copyright notice, 19 this list of conditions and the following disclaimer in the documentation 20 and/or other materials provided with the distribution. 21 3. Neither the name of the copyright holder nor the names of its contributors 22 may be used to endorse or promote products derived from this software without 23 specific prior written permission. 24 25 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 26 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 27 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 28 IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 29 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 30 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 31 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 32 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 33 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 34 OF SUCH DAMAGE. 35 */ 36 37 #ifndef GD32F403_EXTI_H 38 #define GD32F403_EXTI_H 39 40 #include "gd32f403.h" 41 42 /* EXTI definitions */ 43 #define EXTI EXTI_BASE 44 45 /* registers definitions */ 46 #define EXTI_INTEN REG32(EXTI + 0x00U) /*!< interrupt enable register */ 47 #define EXTI_EVEN REG32(EXTI + 0x04U) /*!< event enable register */ 48 #define EXTI_RTEN REG32(EXTI + 0x08U) /*!< rising edge trigger enable register */ 49 #define EXTI_FTEN REG32(EXTI + 0x0CU) /*!< falling trigger enable register */ 50 #define EXTI_SWIEV REG32(EXTI + 0x10U) /*!< software interrupt event register */ 51 #define EXTI_PD REG32(EXTI + 0x14U) /*!< pending register */ 52 53 /* bits definitions */ 54 /* EXTI_INTEN */ 55 #define EXTI_INTEN_INTEN0 BIT(0) /*!< interrupt from line 0 */ 56 #define EXTI_INTEN_INTEN1 BIT(1) /*!< interrupt from line 1 */ 57 #define EXTI_INTEN_INTEN2 BIT(2) /*!< interrupt from line 2 */ 58 #define EXTI_INTEN_INTEN3 BIT(3) /*!< interrupt from line 3 */ 59 #define EXTI_INTEN_INTEN4 BIT(4) /*!< interrupt from line 4 */ 60 #define EXTI_INTEN_INTEN5 BIT(5) /*!< interrupt from line 5 */ 61 #define EXTI_INTEN_INTEN6 BIT(6) /*!< interrupt from line 6 */ 62 #define EXTI_INTEN_INTEN7 BIT(7) /*!< interrupt from line 7 */ 63 #define EXTI_INTEN_INTEN8 BIT(8) /*!< interrupt from line 8 */ 64 #define EXTI_INTEN_INTEN9 BIT(9) /*!< interrupt from line 9 */ 65 #define EXTI_INTEN_INTEN10 BIT(10) /*!< interrupt from line 10 */ 66 #define EXTI_INTEN_INTEN11 BIT(11) /*!< interrupt from line 11 */ 67 #define EXTI_INTEN_INTEN12 BIT(12) /*!< interrupt from line 12 */ 68 #define EXTI_INTEN_INTEN13 BIT(13) /*!< interrupt from line 13 */ 69 #define EXTI_INTEN_INTEN14 BIT(14) /*!< interrupt from line 14 */ 70 #define EXTI_INTEN_INTEN15 BIT(15) /*!< interrupt from line 15 */ 71 #define EXTI_INTEN_INTEN16 BIT(16) /*!< interrupt from line 16 */ 72 #define EXTI_INTEN_INTEN17 BIT(17) /*!< interrupt from line 17 */ 73 #define EXTI_INTEN_INTEN18 BIT(18) /*!< interrupt from line 18 */ 74 75 /* EXTI_EVEN */ 76 #define EXTI_EVEN_EVEN0 BIT(0) /*!< event from line 0 */ 77 #define EXTI_EVEN_EVEN1 BIT(1) /*!< event from line 1 */ 78 #define EXTI_EVEN_EVEN2 BIT(2) /*!< event from line 2 */ 79 #define EXTI_EVEN_EVEN3 BIT(3) /*!< event from line 3 */ 80 #define EXTI_EVEN_EVEN4 BIT(4) /*!< event from line 4 */ 81 #define EXTI_EVEN_EVEN5 BIT(5) /*!< event from line 5 */ 82 #define EXTI_EVEN_EVEN6 BIT(6) /*!< event from line 6 */ 83 #define EXTI_EVEN_EVEN7 BIT(7) /*!< event from line 7 */ 84 #define EXTI_EVEN_EVEN8 BIT(8) /*!< event from line 8 */ 85 #define EXTI_EVEN_EVEN9 BIT(9) /*!< event from line 9 */ 86 #define EXTI_EVEN_EVEN10 BIT(10) /*!< event from line 10 */ 87 #define EXTI_EVEN_EVEN11 BIT(11) /*!< event from line 11 */ 88 #define EXTI_EVEN_EVEN12 BIT(12) /*!< event from line 12 */ 89 #define EXTI_EVEN_EVEN13 BIT(13) /*!< event from line 13 */ 90 #define EXTI_EVEN_EVEN14 BIT(14) /*!< event from line 14 */ 91 #define EXTI_EVEN_EVEN15 BIT(15) /*!< event from line 15 */ 92 #define EXTI_EVEN_EVEN16 BIT(16) /*!< event from line 16 */ 93 #define EXTI_EVEN_EVEN17 BIT(17) /*!< event from line 17 */ 94 #define EXTI_EVEN_EVEN18 BIT(18) /*!< event from line 18 */ 95 96 /* EXTI_RTEN */ 97 #define EXTI_RTEN_RTEN0 BIT(0) /*!< rising edge from line 0 */ 98 #define EXTI_RTEN_RTEN1 BIT(1) /*!< rising edge from line 1 */ 99 #define EXTI_RTEN_RTEN2 BIT(2) /*!< rising edge from line 2 */ 100 #define EXTI_RTEN_RTEN3 BIT(3) /*!< rising edge from line 3 */ 101 #define EXTI_RTEN_RTEN4 BIT(4) /*!< rising edge from line 4 */ 102 #define EXTI_RTEN_RTEN5 BIT(5) /*!< rising edge from line 5 */ 103 #define EXTI_RTEN_RTEN6 BIT(6) /*!< rising edge from line 6 */ 104 #define EXTI_RTEN_RTEN7 BIT(7) /*!< rising edge from line 7 */ 105 #define EXTI_RTEN_RTEN8 BIT(8) /*!< rising edge from line 8 */ 106 #define EXTI_RTEN_RTEN9 BIT(9) /*!< rising edge from line 9 */ 107 #define EXTI_RTEN_RTEN10 BIT(10) /*!< rising edge from line 10 */ 108 #define EXTI_RTEN_RTEN11 BIT(11) /*!< rising edge from line 11 */ 109 #define EXTI_RTEN_RTEN12 BIT(12) /*!< rising edge from line 12 */ 110 #define EXTI_RTEN_RTEN13 BIT(13) /*!< rising edge from line 13 */ 111 #define EXTI_RTEN_RTEN14 BIT(14) /*!< rising edge from line 14 */ 112 #define EXTI_RTEN_RTEN15 BIT(15) /*!< rising edge from line 15 */ 113 #define EXTI_RTEN_RTEN16 BIT(16) /*!< rising edge from line 16 */ 114 #define EXTI_RTEN_RTEN17 BIT(17) /*!< rising edge from line 17 */ 115 #define EXTI_RTEN_RTEN18 BIT(18) /*!< rising edge from line 18 */ 116 117 /* EXTI_FTEN */ 118 #define EXTI_FTEN_FTEN0 BIT(0) /*!< falling edge from line 0 */ 119 #define EXTI_FTEN_FTEN1 BIT(1) /*!< falling edge from line 1 */ 120 #define EXTI_FTEN_FTEN2 BIT(2) /*!< falling edge from line 2 */ 121 #define EXTI_FTEN_FTEN3 BIT(3) /*!< falling edge from line 3 */ 122 #define EXTI_FTEN_FTEN4 BIT(4) /*!< falling edge from line 4 */ 123 #define EXTI_FTEN_FTEN5 BIT(5) /*!< falling edge from line 5 */ 124 #define EXTI_FTEN_FTEN6 BIT(6) /*!< falling edge from line 6 */ 125 #define EXTI_FTEN_FTEN7 BIT(7) /*!< falling edge from line 7 */ 126 #define EXTI_FTEN_FTEN8 BIT(8) /*!< falling edge from line 8 */ 127 #define EXTI_FTEN_FTEN9 BIT(9) /*!< falling edge from line 9 */ 128 #define EXTI_FTEN_FTEN10 BIT(10) /*!< falling edge from line 10 */ 129 #define EXTI_FTEN_FTEN11 BIT(11) /*!< falling edge from line 11 */ 130 #define EXTI_FTEN_FTEN12 BIT(12) /*!< falling edge from line 12 */ 131 #define EXTI_FTEN_FTEN13 BIT(13) /*!< falling edge from line 13 */ 132 #define EXTI_FTEN_FTEN14 BIT(14) /*!< falling edge from line 14 */ 133 #define EXTI_FTEN_FTEN15 BIT(15) /*!< falling edge from line 15 */ 134 #define EXTI_FTEN_FTEN16 BIT(16) /*!< falling edge from line 16 */ 135 #define EXTI_FTEN_FTEN17 BIT(17) /*!< falling edge from line 17 */ 136 #define EXTI_FTEN_FTEN18 BIT(18) /*!< falling edge from line 18 */ 137 138 /* EXTI_SWIEV */ 139 #define EXTI_SWIEV_SWIEV0 BIT(0) /*!< software interrupt/event request from line 0 */ 140 #define EXTI_SWIEV_SWIEV1 BIT(1) /*!< software interrupt/event request from line 1 */ 141 #define EXTI_SWIEV_SWIEV2 BIT(2) /*!< software interrupt/event request from line 2 */ 142 #define EXTI_SWIEV_SWIEV3 BIT(3) /*!< software interrupt/event request from line 3 */ 143 #define EXTI_SWIEV_SWIEV4 BIT(4) /*!< software interrupt/event request from line 4 */ 144 #define EXTI_SWIEV_SWIEV5 BIT(5) /*!< software interrupt/event request from line 5 */ 145 #define EXTI_SWIEV_SWIEV6 BIT(6) /*!< software interrupt/event request from line 6 */ 146 #define EXTI_SWIEV_SWIEV7 BIT(7) /*!< software interrupt/event request from line 7 */ 147 #define EXTI_SWIEV_SWIEV8 BIT(8) /*!< software interrupt/event request from line 8 */ 148 #define EXTI_SWIEV_SWIEV9 BIT(9) /*!< software interrupt/event request from line 9 */ 149 #define EXTI_SWIEV_SWIEV10 BIT(10) /*!< software interrupt/event request from line 10 */ 150 #define EXTI_SWIEV_SWIEV11 BIT(11) /*!< software interrupt/event request from line 11 */ 151 #define EXTI_SWIEV_SWIEV12 BIT(12) /*!< software interrupt/event request from line 12 */ 152 #define EXTI_SWIEV_SWIEV13 BIT(13) /*!< software interrupt/event request from line 13 */ 153 #define EXTI_SWIEV_SWIEV14 BIT(14) /*!< software interrupt/event request from line 14 */ 154 #define EXTI_SWIEV_SWIEV15 BIT(15) /*!< software interrupt/event request from line 15 */ 155 #define EXTI_SWIEV_SWIEV16 BIT(16) /*!< software interrupt/event request from line 16 */ 156 #define EXTI_SWIEV_SWIEV17 BIT(17) /*!< software interrupt/event request from line 17 */ 157 #define EXTI_SWIEV_SWIEV18 BIT(18) /*!< software interrupt/event request from line 18 */ 158 159 /* EXTI_PD */ 160 #define EXTI_PD_PD0 BIT(0) /*!< interrupt/event pending status from line 0 */ 161 #define EXTI_PD_PD1 BIT(1) /*!< interrupt/event pending status from line 1 */ 162 #define EXTI_PD_PD2 BIT(2) /*!< interrupt/event pending status from line 2 */ 163 #define EXTI_PD_PD3 BIT(3) /*!< interrupt/event pending status from line 3 */ 164 #define EXTI_PD_PD4 BIT(4) /*!< interrupt/event pending status from line 4 */ 165 #define EXTI_PD_PD5 BIT(5) /*!< interrupt/event pending status from line 5 */ 166 #define EXTI_PD_PD6 BIT(6) /*!< interrupt/event pending status from line 6 */ 167 #define EXTI_PD_PD7 BIT(7) /*!< interrupt/event pending status from line 7 */ 168 #define EXTI_PD_PD8 BIT(8) /*!< interrupt/event pending status from line 8 */ 169 #define EXTI_PD_PD9 BIT(9) /*!< interrupt/event pending status from line 9 */ 170 #define EXTI_PD_PD10 BIT(10) /*!< interrupt/event pending status from line 10 */ 171 #define EXTI_PD_PD11 BIT(11) /*!< interrupt/event pending status from line 11 */ 172 #define EXTI_PD_PD12 BIT(12) /*!< interrupt/event pending status from line 12 */ 173 #define EXTI_PD_PD13 BIT(13) /*!< interrupt/event pending status from line 13 */ 174 #define EXTI_PD_PD14 BIT(14) /*!< interrupt/event pending status from line 14 */ 175 #define EXTI_PD_PD15 BIT(15) /*!< interrupt/event pending status from line 15 */ 176 #define EXTI_PD_PD16 BIT(16) /*!< interrupt/event pending status from line 16 */ 177 #define EXTI_PD_PD17 BIT(17) /*!< interrupt/event pending status from line 17 */ 178 #define EXTI_PD_PD18 BIT(18) /*!< interrupt/event pending status from line 18 */ 179 180 /* constants definitions */ 181 /* EXTI line number */ 182 typedef enum 183 { 184 EXTI_0 = BIT(0), /*!< EXTI line 0 */ 185 EXTI_1 = BIT(1), /*!< EXTI line 1 */ 186 EXTI_2 = BIT(2), /*!< EXTI line 2 */ 187 EXTI_3 = BIT(3), /*!< EXTI line 3 */ 188 EXTI_4 = BIT(4), /*!< EXTI line 4 */ 189 EXTI_5 = BIT(5), /*!< EXTI line 5 */ 190 EXTI_6 = BIT(6), /*!< EXTI line 6 */ 191 EXTI_7 = BIT(7), /*!< EXTI line 7 */ 192 EXTI_8 = BIT(8), /*!< EXTI line 8 */ 193 EXTI_9 = BIT(9), /*!< EXTI line 9 */ 194 EXTI_10 = BIT(10), /*!< EXTI line 10 */ 195 EXTI_11 = BIT(11), /*!< EXTI line 11 */ 196 EXTI_12 = BIT(12), /*!< EXTI line 12 */ 197 EXTI_13 = BIT(13), /*!< EXTI line 13 */ 198 EXTI_14 = BIT(14), /*!< EXTI line 14 */ 199 EXTI_15 = BIT(15), /*!< EXTI line 15 */ 200 EXTI_16 = BIT(16), /*!< EXTI line 16 */ 201 EXTI_17 = BIT(17), /*!< EXTI line 17 */ 202 EXTI_18 = BIT(18), /*!< EXTI line 18 */ 203 }exti_line_enum; 204 205 /* external interrupt and event */ 206 typedef enum 207 { 208 EXTI_INTERRUPT = 0, /*!< EXTI interrupt mode */ 209 EXTI_EVENT /*!< EXTI event mode */ 210 }exti_mode_enum; 211 212 /* interrupt trigger mode */ 213 typedef enum 214 { 215 EXTI_TRIG_RISING = 0, /*!< EXTI rising edge trigger */ 216 EXTI_TRIG_FALLING, /*!< EXTI falling edge trigger */ 217 EXTI_TRIG_BOTH /*!< EXTI rising and falling edge trigger */ 218 }exti_trig_type_enum; 219 220 /* function declarations */ 221 /* deinitialize the EXTI */ 222 void exti_deinit(void); 223 /* enable the configuration of EXTI initialize */ 224 void exti_init(exti_line_enum linex, exti_mode_enum mode, exti_trig_type_enum trig_type); 225 /* enable the interrupts from EXTI line x */ 226 void exti_interrupt_enable(exti_line_enum linex); 227 /* enable the events from EXTI line x */ 228 void exti_event_enable(exti_line_enum linex); 229 /* disable the interrupts from EXTI line x */ 230 void exti_interrupt_disable(exti_line_enum linex); 231 /* disable the events from EXTI line x */ 232 void exti_event_disable(exti_line_enum linex); 233 234 /* get EXTI lines pending flag */ 235 FlagStatus exti_flag_get(exti_line_enum linex); 236 /* clear EXTI lines pending flag */ 237 void exti_flag_clear(exti_line_enum linex); 238 /* get EXTI lines flag when the interrupt flag is set */ 239 FlagStatus exti_interrupt_flag_get(exti_line_enum linex); 240 /* clear EXTI lines pending flag */ 241 void exti_interrupt_flag_clear(exti_line_enum linex); 242 /* enable the EXTI software interrupt event */ 243 void exti_software_interrupt_enable(exti_line_enum linex); 244 /* disable the EXTI software interrupt event */ 245 void exti_software_interrupt_disable(exti_line_enum linex); 246 247 #endif /* GD32F403_EXTI_H */ 248
