1 /*! 2 \file gd32a50x_exti.h 3 \brief definitions for the EXTI 4 5 \version 2022-01-30, V1.0.0, firmware for GD32A50x 6 */ 7 8 /* 9 Copyright (c) 2022, GigaDevice Semiconductor Inc. 10 11 Redistribution and use in source and binary forms, with or without modification, 12 are permitted provided that the following conditions are met: 13 14 1. Redistributions of source code must retain the above copyright notice, this 15 list of conditions and the following disclaimer. 16 2. Redistributions in binary form must reproduce the above copyright notice, 17 this list of conditions and the following disclaimer in the documentation 18 and/or other materials provided with the distribution. 19 3. Neither the name of the copyright holder nor the names of its contributors 20 may be used to endorse or promote products derived from this software without 21 specific prior written permission. 22 23 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 24 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 25 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26 IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 27 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 29 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 30 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 32 OF SUCH DAMAGE. 33 */ 34 35 #ifndef GD32A50X_EXTI_H 36 #define GD32A50X_EXTI_H 37 38 #include "gd32a50x.h" 39 40 /* EXTI definitions */ 41 #define EXTI EXTI_BASE 42 43 /* registers definitions */ 44 #define EXTI_INTEN REG32(EXTI + 0x00000000U) /*!< interrupt enable register */ 45 #define EXTI_EVEN REG32(EXTI + 0x00000004U) /*!< event enable register */ 46 #define EXTI_RTEN REG32(EXTI + 0x00000008U) /*!< rising edge trigger enable register */ 47 #define EXTI_FTEN REG32(EXTI + 0x0000000CU) /*!< falling trigger enable register */ 48 #define EXTI_SWIEV REG32(EXTI + 0x00000010U) /*!< software interrupt event register */ 49 #define EXTI_PD REG32(EXTI + 0x00000014U) /*!< pending register */ 50 51 /* bits definitions */ 52 /* EXTI_INTEN */ 53 #define EXTI_INTEN_INTEN0 BIT(0) /*!< interrupt from line 0 */ 54 #define EXTI_INTEN_INTEN1 BIT(1) /*!< interrupt from line 1 */ 55 #define EXTI_INTEN_INTEN2 BIT(2) /*!< interrupt from line 2 */ 56 #define EXTI_INTEN_INTEN3 BIT(3) /*!< interrupt from line 3 */ 57 #define EXTI_INTEN_INTEN4 BIT(4) /*!< interrupt from line 4 */ 58 #define EXTI_INTEN_INTEN5 BIT(5) /*!< interrupt from line 5 */ 59 #define EXTI_INTEN_INTEN6 BIT(6) /*!< interrupt from line 6 */ 60 #define EXTI_INTEN_INTEN7 BIT(7) /*!< interrupt from line 7 */ 61 #define EXTI_INTEN_INTEN8 BIT(8) /*!< interrupt from line 8 */ 62 #define EXTI_INTEN_INTEN9 BIT(9) /*!< interrupt from line 9 */ 63 #define EXTI_INTEN_INTEN10 BIT(10) /*!< interrupt from line 10 */ 64 #define EXTI_INTEN_INTEN11 BIT(11) /*!< interrupt from line 11 */ 65 #define EXTI_INTEN_INTEN12 BIT(12) /*!< interrupt from line 12 */ 66 #define EXTI_INTEN_INTEN13 BIT(13) /*!< interrupt from line 13 */ 67 #define EXTI_INTEN_INTEN14 BIT(14) /*!< interrupt from line 14 */ 68 #define EXTI_INTEN_INTEN15 BIT(15) /*!< interrupt from line 15 */ 69 #define EXTI_INTEN_INTEN16 BIT(16) /*!< interrupt from line 16 */ 70 #define EXTI_INTEN_INTEN17 BIT(17) /*!< interrupt from line 17 */ 71 #define EXTI_INTEN_INTEN18 BIT(18) /*!< interrupt from line 18 */ 72 #define EXTI_INTEN_INTEN19 BIT(19) /*!< interrupt from line 19 */ 73 #define EXTI_INTEN_INTEN20 BIT(20) /*!< interrupt from line 20 */ 74 #define EXTI_INTEN_INTEN21 BIT(21) /*!< interrupt from line 21 */ 75 #define EXTI_INTEN_INTEN22 BIT(22) /*!< interrupt from line 22 */ 76 #define EXTI_INTEN_INTEN23 BIT(23) /*!< interrupt from line 23 */ 77 #define EXTI_INTEN_INTEN24 BIT(24) /*!< interrupt from line 24 */ 78 /* EXTI_EVEN */ 79 #define EXTI_EVEN_EVEN0 BIT(0) /*!< event from line 0 */ 80 #define EXTI_EVEN_EVEN1 BIT(1) /*!< event from line 1 */ 81 #define EXTI_EVEN_EVEN2 BIT(2) /*!< event from line 2 */ 82 #define EXTI_EVEN_EVEN3 BIT(3) /*!< event from line 3 */ 83 #define EXTI_EVEN_EVEN4 BIT(4) /*!< event from line 4 */ 84 #define EXTI_EVEN_EVEN5 BIT(5) /*!< event from line 5 */ 85 #define EXTI_EVEN_EVEN6 BIT(6) /*!< event from line 6 */ 86 #define EXTI_EVEN_EVEN7 BIT(7) /*!< event from line 7 */ 87 #define EXTI_EVEN_EVEN8 BIT(8) /*!< event from line 8 */ 88 #define EXTI_EVEN_EVEN9 BIT(9) /*!< event from line 9 */ 89 #define EXTI_EVEN_EVEN10 BIT(10) /*!< event from line 10 */ 90 #define EXTI_EVEN_EVEN11 BIT(11) /*!< event from line 11 */ 91 #define EXTI_EVEN_EVEN12 BIT(12) /*!< event from line 12 */ 92 #define EXTI_EVEN_EVEN13 BIT(13) /*!< event from line 13 */ 93 #define EXTI_EVEN_EVEN14 BIT(14) /*!< event from line 14 */ 94 #define EXTI_EVEN_EVEN15 BIT(15) /*!< event from line 15 */ 95 #define EXTI_EVEN_EVEN16 BIT(16) /*!< event from line 16 */ 96 #define EXTI_EVEN_EVEN17 BIT(17) /*!< event from line 17 */ 97 #define EXTI_EVEN_EVEN18 BIT(18) /*!< event from line 18 */ 98 #define EXTI_EVEN_EVEN19 BIT(19) /*!< event from line 19 */ 99 #define EXTI_EVEN_EVEN20 BIT(20) /*!< event from line 20 */ 100 #define EXTI_EVEN_EVEN21 BIT(21) /*!< event from line 21 */ 101 #define EXTI_EVEN_EVEN22 BIT(22) /*!< event from line 22 */ 102 #define EXTI_EVEN_EVEN23 BIT(23) /*!< event from line 23 */ 103 #define EXTI_EVEN_EVEN24 BIT(24) /*!< event from line 24 */ 104 105 /* EXTI_RTEN */ 106 #define EXTI_RTEN_RTEN0 BIT(0) /*!< rising edge from line 0 */ 107 #define EXTI_RTEN_RTEN1 BIT(1) /*!< rising edge from line 1 */ 108 #define EXTI_RTEN_RTEN2 BIT(2) /*!< rising edge from line 2 */ 109 #define EXTI_RTEN_RTEN3 BIT(3) /*!< rising edge from line 3 */ 110 #define EXTI_RTEN_RTEN4 BIT(4) /*!< rising edge from line 4 */ 111 #define EXTI_RTEN_RTEN5 BIT(5) /*!< rising edge from line 5 */ 112 #define EXTI_RTEN_RTEN6 BIT(6) /*!< rising edge from line 6 */ 113 #define EXTI_RTEN_RTEN7 BIT(7) /*!< rising edge from line 7 */ 114 #define EXTI_RTEN_RTEN8 BIT(8) /*!< rising edge from line 8 */ 115 #define EXTI_RTEN_RTEN9 BIT(9) /*!< rising edge from line 9 */ 116 #define EXTI_RTEN_RTEN10 BIT(10) /*!< rising edge from line 10 */ 117 #define EXTI_RTEN_RTEN11 BIT(11) /*!< rising edge from line 11 */ 118 #define EXTI_RTEN_RTEN12 BIT(12) /*!< rising edge from line 12 */ 119 #define EXTI_RTEN_RTEN13 BIT(13) /*!< rising edge from line 13 */ 120 #define EXTI_RTEN_RTEN14 BIT(14) /*!< rising edge from line 14 */ 121 #define EXTI_RTEN_RTEN15 BIT(15) /*!< rising edge from line 15 */ 122 #define EXTI_RTEN_RTEN16 BIT(16) /*!< rising edge from line 16 */ 123 #define EXTI_RTEN_RTEN17 BIT(17) /*!< rising edge from line 17 */ 124 #define EXTI_RTEN_RTEN18 BIT(18) /*!< rising edge from line 18 */ 125 #define EXTI_RTEN_RTEN19 BIT(19) /*!< rising edge from line 19 */ 126 #define EXTI_RTEN_RTEN20 BIT(20) /*!< rising edge from line 20 */ 127 #define EXTI_RTEN_RTEN21 BIT(21) /*!< rising edge from line 21 */ 128 #define EXTI_RTEN_RTEN22 BIT(22) /*!< rising edge from line 22 */ 129 #define EXTI_RTEN_RTEN23 BIT(23) /*!< rising edge from line 23 */ 130 #define EXTI_RTEN_RTEN24 BIT(24) /*!< rising edge from line 24 */ 131 132 /* EXTI_FTEN */ 133 #define EXTI_FTEN_FTEN0 BIT(0) /*!< falling edge from line 0 */ 134 #define EXTI_FTEN_FTEN1 BIT(1) /*!< falling edge from line 1 */ 135 #define EXTI_FTEN_FTEN2 BIT(2) /*!< falling edge from line 2 */ 136 #define EXTI_FTEN_FTEN3 BIT(3) /*!< falling edge from line 3 */ 137 #define EXTI_FTEN_FTEN4 BIT(4) /*!< falling edge from line 4 */ 138 #define EXTI_FTEN_FTEN5 BIT(5) /*!< falling edge from line 5 */ 139 #define EXTI_FTEN_FTEN6 BIT(6) /*!< falling edge from line 6 */ 140 #define EXTI_FTEN_FTEN7 BIT(7) /*!< falling edge from line 7 */ 141 #define EXTI_FTEN_FTEN8 BIT(8) /*!< falling edge from line 8 */ 142 #define EXTI_FTEN_FTEN9 BIT(9) /*!< falling edge from line 9 */ 143 #define EXTI_FTEN_FTEN10 BIT(10) /*!< falling edge from line 10 */ 144 #define EXTI_FTEN_FTEN11 BIT(11) /*!< falling edge from line 11 */ 145 #define EXTI_FTEN_FTEN12 BIT(12) /*!< falling edge from line 12 */ 146 #define EXTI_FTEN_FTEN13 BIT(13) /*!< falling edge from line 13 */ 147 #define EXTI_FTEN_FTEN14 BIT(14) /*!< falling edge from line 14 */ 148 #define EXTI_FTEN_FTEN15 BIT(15) /*!< falling edge from line 15 */ 149 #define EXTI_FTEN_FTEN16 BIT(16) /*!< falling edge from line 16 */ 150 #define EXTI_FTEN_FTEN17 BIT(17) /*!< falling edge from line 17 */ 151 #define EXTI_FTEN_FTEN18 BIT(18) /*!< falling edge from line 18 */ 152 #define EXTI_FTEN_FTEN19 BIT(19) /*!< falling edge from line 19 */ 153 #define EXTI_FTEN_FTEN20 BIT(20) /*!< falling edge from line 20 */ 154 #define EXTI_FTEN_FTEN21 BIT(21) /*!< falling edge from line 21 */ 155 #define EXTI_FTEN_FTEN22 BIT(22) /*!< falling edge from line 22 */ 156 #define EXTI_FTEN_FTEN23 BIT(23) /*!< falling edge from line 23 */ 157 #define EXTI_FTEN_FTEN24 BIT(24) /*!< falling edge from line 24 */ 158 /* EXTI_SWIEV */ 159 #define EXTI_SWIEV_SWIEV0 BIT(0) /*!< software interrupt/event request from line 0 */ 160 #define EXTI_SWIEV_SWIEV1 BIT(1) /*!< software interrupt/event request from line 1 */ 161 #define EXTI_SWIEV_SWIEV2 BIT(2) /*!< software interrupt/event request from line 2 */ 162 #define EXTI_SWIEV_SWIEV3 BIT(3) /*!< software interrupt/event request from line 3 */ 163 #define EXTI_SWIEV_SWIEV4 BIT(4) /*!< software interrupt/event request from line 4 */ 164 #define EXTI_SWIEV_SWIEV5 BIT(5) /*!< software interrupt/event request from line 5 */ 165 #define EXTI_SWIEV_SWIEV6 BIT(6) /*!< software interrupt/event request from line 6 */ 166 #define EXTI_SWIEV_SWIEV7 BIT(7) /*!< software interrupt/event request from line 7 */ 167 #define EXTI_SWIEV_SWIEV8 BIT(8) /*!< software interrupt/event request from line 8 */ 168 #define EXTI_SWIEV_SWIEV9 BIT(9) /*!< software interrupt/event request from line 9 */ 169 #define EXTI_SWIEV_SWIEV10 BIT(10) /*!< software interrupt/event request from line 10 */ 170 #define EXTI_SWIEV_SWIEV11 BIT(11) /*!< software interrupt/event request from line 11 */ 171 #define EXTI_SWIEV_SWIEV12 BIT(12) /*!< software interrupt/event request from line 12 */ 172 #define EXTI_SWIEV_SWIEV13 BIT(13) /*!< software interrupt/event request from line 13 */ 173 #define EXTI_SWIEV_SWIEV14 BIT(14) /*!< software interrupt/event request from line 14 */ 174 #define EXTI_SWIEV_SWIEV15 BIT(15) /*!< software interrupt/event request from line 15 */ 175 #define EXTI_SWIEV_SWIEV16 BIT(16) /*!< software interrupt/event request from line 16 */ 176 #define EXTI_SWIEV_SWIEV17 BIT(17) /*!< software interrupt/event request from line 17 */ 177 #define EXTI_SWIEV_SWIEV18 BIT(18) /*!< software interrupt/event request from line 18 */ 178 #define EXTI_SWIEV_SWIEV19 BIT(19) /*!< software interrupt/event request from line 19 */ 179 #define EXTI_SWIEV_SWIEV20 BIT(20) /*!< software interrupt/event request from line 20 */ 180 #define EXTI_SWIEV_SWIEV21 BIT(21) /*!< software interrupt/event request from line 21 */ 181 #define EXTI_SWIEV_SWIEV22 BIT(22) /*!< software interrupt/event request from line 22 */ 182 #define EXTI_SWIEV_SWIEV23 BIT(23) /*!< software interrupt/event request from line 23 */ 183 #define EXTI_SWIEV_SWIEV24 BIT(24) /*!< software interrupt/event request from line 24 */ 184 185 /* EXTI_PD */ 186 #define EXTI_PD_PD0 BIT(0) /*!< interrupt/event pending status from line 0 */ 187 #define EXTI_PD_PD1 BIT(1) /*!< interrupt/event pending status from line 1 */ 188 #define EXTI_PD_PD2 BIT(2) /*!< interrupt/event pending status from line 2 */ 189 #define EXTI_PD_PD3 BIT(3) /*!< interrupt/event pending status from line 3 */ 190 #define EXTI_PD_PD4 BIT(4) /*!< interrupt/event pending status from line 4 */ 191 #define EXTI_PD_PD5 BIT(5) /*!< interrupt/event pending status from line 5 */ 192 #define EXTI_PD_PD6 BIT(6) /*!< interrupt/event pending status from line 6 */ 193 #define EXTI_PD_PD7 BIT(7) /*!< interrupt/event pending status from line 7 */ 194 #define EXTI_PD_PD8 BIT(8) /*!< interrupt/event pending status from line 8 */ 195 #define EXTI_PD_PD9 BIT(9) /*!< interrupt/event pending status from line 9 */ 196 #define EXTI_PD_PD10 BIT(10) /*!< interrupt/event pending status from line 10 */ 197 #define EXTI_PD_PD11 BIT(11) /*!< interrupt/event pending status from line 11 */ 198 #define EXTI_PD_PD12 BIT(12) /*!< interrupt/event pending status from line 12 */ 199 #define EXTI_PD_PD13 BIT(13) /*!< interrupt/event pending status from line 13 */ 200 #define EXTI_PD_PD14 BIT(14) /*!< interrupt/event pending status from line 14 */ 201 #define EXTI_PD_PD15 BIT(15) /*!< interrupt/event pending status from line 15 */ 202 #define EXTI_PD_PD16 BIT(16) /*!< interrupt/event pending status from line 16 */ 203 #define EXTI_PD_PD17 BIT(17) /*!< interrupt/event pending status from line 17 */ 204 #define EXTI_PD_PD18 BIT(18) /*!< interrupt/event pending status from line 18 */ 205 #define EXTI_PD_PD19 BIT(19) /*!< interrupt/event pending status from line 19 */ 206 #define EXTI_PD_PD20 BIT(20) /*!< interrupt/event pending status from line 20 */ 207 #define EXTI_PD_PD21 BIT(21) /*!< interrupt/event pending status from line 21 */ 208 #define EXTI_PD_PD22 BIT(22) /*!< interrupt/event pending status from line 22 */ 209 #define EXTI_PD_PD23 BIT(23) /*!< interrupt/event pending status from line 23 */ 210 #define EXTI_PD_PD24 BIT(24) /*!< interrupt/event pending status from line 24 */ 211 212 /* constants definitions */ 213 /* EXTI line number */ 214 typedef enum 215 { 216 EXTI_0 = BIT(0), /*!< EXTI line 0 */ 217 EXTI_1 = BIT(1), /*!< EXTI line 1 */ 218 EXTI_2 = BIT(2), /*!< EXTI line 2 */ 219 EXTI_3 = BIT(3), /*!< EXTI line 3 */ 220 EXTI_4 = BIT(4), /*!< EXTI line 4 */ 221 EXTI_5 = BIT(5), /*!< EXTI line 5 */ 222 EXTI_6 = BIT(6), /*!< EXTI line 6 */ 223 EXTI_7 = BIT(7), /*!< EXTI line 7 */ 224 EXTI_8 = BIT(8), /*!< EXTI line 8 */ 225 EXTI_9 = BIT(9), /*!< EXTI line 9 */ 226 EXTI_10 = BIT(10), /*!< EXTI line 10 */ 227 EXTI_11 = BIT(11), /*!< EXTI line 11 */ 228 EXTI_12 = BIT(12), /*!< EXTI line 12 */ 229 EXTI_13 = BIT(13), /*!< EXTI line 13 */ 230 EXTI_14 = BIT(14), /*!< EXTI line 14 */ 231 EXTI_15 = BIT(15), /*!< EXTI line 15 */ 232 EXTI_16 = BIT(16), /*!< EXTI line 16 */ 233 EXTI_17 = BIT(17), /*!< EXTI line 17 */ 234 EXTI_18 = BIT(18), /*!< EXTI line 18 */ 235 EXTI_19 = BIT(19), /*!< EXTI line 19 */ 236 EXTI_20 = BIT(20), /*!< EXTI line 20 */ 237 EXTI_21 = BIT(21), /*!< EXTI line 21 */ 238 EXTI_22 = BIT(22), /*!< EXTI line 22 */ 239 EXTI_23 = BIT(23), /*!< EXTI line 23 */ 240 EXTI_24 = BIT(24), /*!< EXTI line 24 */ 241 }exti_line_enum; 242 243 /* external interrupt and event */ 244 typedef enum 245 { 246 EXTI_INTERRUPT = 0, /*!< EXTI interrupt mode */ 247 EXTI_EVENT /*!< EXTI event mode */ 248 }exti_mode_enum; 249 250 /* interrupt trigger mode */ 251 typedef enum 252 { 253 EXTI_TRIG_RISING = 0, /*!< EXTI rising edge trigger */ 254 EXTI_TRIG_FALLING, /*!< EXTI falling edge trigger */ 255 EXTI_TRIG_BOTH, /*!< EXTI rising and falling edge trigger */ 256 EXTI_TRIG_NONE /*!< without rising edge or falling edge trigger */ 257 }exti_trig_type_enum; 258 259 /* function declarations */ 260 /* deinitialize the EXTI */ 261 void exti_deinit(void); 262 /* initialize the EXTI */ 263 void exti_init(exti_line_enum linex, exti_mode_enum mode, exti_trig_type_enum trig_type); 264 /* enable the interrupts from EXTI line x */ 265 void exti_interrupt_enable(exti_line_enum linex); 266 /* disable the interrupts from EXTI line x */ 267 void exti_interrupt_disable(exti_line_enum linex); 268 /* enable the events from EXTI line x */ 269 void exti_event_enable(exti_line_enum linex); 270 /* disable the events from EXTI line x */ 271 void exti_event_disable(exti_line_enum linex); 272 273 /* enable the EXTI software interrupt event */ 274 void exti_software_interrupt_enable(exti_line_enum linex); 275 /* disable the EXTI software interrupt event */ 276 void exti_software_interrupt_disable(exti_line_enum linex); 277 /* get EXTI line x pending flag */ 278 FlagStatus exti_flag_get(exti_line_enum linex); 279 /* clear EXTI line x pending flag */ 280 void exti_flag_clear(exti_line_enum linex); 281 /* get EXTI line x flag when the interrupt flag is set */ 282 FlagStatus exti_interrupt_flag_get(exti_line_enum linex); 283 /* clear EXTI line x pending flag */ 284 void exti_interrupt_flag_clear(exti_line_enum linex); 285 286 #endif /* GD32A50X_EXTI_H */ 287
