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Last commit 20 Feb 2019 by 
mbed official
targets/hal/TARGET_Atmel/TARGET_SAM21/drivers/extint/extint.h@579:53297373a894, 2015-07-01 (annotated)
- Committer:
- mbed_official
- Date:
- Wed Jul 01 09:45:11 2015 +0100
- Revision:
- 579:53297373a894
- Child:
- 592:a274ee790e56
Synchronized with git revision d5b4d2ab9c47edb4dc5776e7177b0c2263459081
Full URL: https://github.com/mbedmicro/mbed/commit/d5b4d2ab9c47edb4dc5776e7177b0c2263459081/
Initial version of drivers for SAMR21
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| mbed_official | 579:53297373a894 | 1 | /** |
| mbed_official | 579:53297373a894 | 2 | * \file |
| mbed_official | 579:53297373a894 | 3 | * |
| mbed_official | 579:53297373a894 | 4 | * \brief SAM External Interrupt Driver |
| mbed_official | 579:53297373a894 | 5 | * |
| mbed_official | 579:53297373a894 | 6 | * Copyright (C) 2012-2014 Atmel Corporation. All rights reserved. |
| mbed_official | 579:53297373a894 | 7 | * |
| mbed_official | 579:53297373a894 | 8 | * \asf_license_start |
| mbed_official | 579:53297373a894 | 9 | * |
| mbed_official | 579:53297373a894 | 10 | * \page License |
| mbed_official | 579:53297373a894 | 11 | * |
| mbed_official | 579:53297373a894 | 12 | * Redistribution and use in source and binary forms, with or without |
| mbed_official | 579:53297373a894 | 13 | * modification, are permitted provided that the following conditions are met: |
| mbed_official | 579:53297373a894 | 14 | * |
| mbed_official | 579:53297373a894 | 15 | * 1. Redistributions of source code must retain the above copyright notice, |
| mbed_official | 579:53297373a894 | 16 | * this list of conditions and the following disclaimer. |
| mbed_official | 579:53297373a894 | 17 | * |
| mbed_official | 579:53297373a894 | 18 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
| mbed_official | 579:53297373a894 | 19 | * this list of conditions and the following disclaimer in the documentation |
| mbed_official | 579:53297373a894 | 20 | * and/or other materials provided with the distribution. |
| mbed_official | 579:53297373a894 | 21 | * |
| mbed_official | 579:53297373a894 | 22 | * 3. The name of Atmel may not be used to endorse or promote products derived |
| mbed_official | 579:53297373a894 | 23 | * from this software without specific prior written permission. |
| mbed_official | 579:53297373a894 | 24 | * |
| mbed_official | 579:53297373a894 | 25 | * 4. This software may only be redistributed and used in connection with an |
| mbed_official | 579:53297373a894 | 26 | * Atmel microcontroller product. |
| mbed_official | 579:53297373a894 | 27 | * |
| mbed_official | 579:53297373a894 | 28 | * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED |
| mbed_official | 579:53297373a894 | 29 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| mbed_official | 579:53297373a894 | 30 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE |
| mbed_official | 579:53297373a894 | 31 | * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR |
| mbed_official | 579:53297373a894 | 32 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| mbed_official | 579:53297373a894 | 33 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| mbed_official | 579:53297373a894 | 34 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| mbed_official | 579:53297373a894 | 35 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| mbed_official | 579:53297373a894 | 36 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| mbed_official | 579:53297373a894 | 37 | * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| mbed_official | 579:53297373a894 | 38 | * POSSIBILITY OF SUCH DAMAGE. |
| mbed_official | 579:53297373a894 | 39 | * |
| mbed_official | 579:53297373a894 | 40 | * \asf_license_stop |
| mbed_official | 579:53297373a894 | 41 | * |
| mbed_official | 579:53297373a894 | 42 | */ |
| mbed_official | 579:53297373a894 | 43 | /** |
| mbed_official | 579:53297373a894 | 44 | * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a> |
| mbed_official | 579:53297373a894 | 45 | */ |
| mbed_official | 579:53297373a894 | 46 | #ifndef EXTINT_H_INCLUDED |
| mbed_official | 579:53297373a894 | 47 | #define EXTINT_H_INCLUDED |
| mbed_official | 579:53297373a894 | 48 | |
| mbed_official | 579:53297373a894 | 49 | /** |
| mbed_official | 579:53297373a894 | 50 | * \defgroup asfdoc_sam0_extint_group SAM External Interrupt Driver (EXTINT) |
| mbed_official | 579:53297373a894 | 51 | * |
| mbed_official | 579:53297373a894 | 52 | * This driver for Atmel庐 | SMART SAM devices provides an interface for the configuration |
| mbed_official | 579:53297373a894 | 53 | * and management of external interrupts generated by the physical device pins, |
| mbed_official | 579:53297373a894 | 54 | * including edge detection. The following driver API modes are covered by this |
| mbed_official | 579:53297373a894 | 55 | * manual: |
| mbed_official | 579:53297373a894 | 56 | * |
| mbed_official | 579:53297373a894 | 57 | * - Polled APIs |
| mbed_official | 579:53297373a894 | 58 | * \if EXTINT_CALLBACK_MODE |
| mbed_official | 579:53297373a894 | 59 | * - Callback APIs |
| mbed_official | 579:53297373a894 | 60 | * \endif |
| mbed_official | 579:53297373a894 | 61 | * |
| mbed_official | 579:53297373a894 | 62 | * The following peripherals are used by this module: |
| mbed_official | 579:53297373a894 | 63 | * - EIC (External Interrupt Controller) |
| mbed_official | 579:53297373a894 | 64 | * |
| mbed_official | 579:53297373a894 | 65 | * The following devices can use this module: |
| mbed_official | 579:53297373a894 | 66 | * - Atmel | SMART SAM D20/D21 |
| mbed_official | 579:53297373a894 | 67 | * - Atmel | SMART SAM R21 |
| mbed_official | 579:53297373a894 | 68 | * - Atmel | SMART SAM D10/D11 |
| mbed_official | 579:53297373a894 | 69 | * - Atmel | SMART SAM L21 |
| mbed_official | 579:53297373a894 | 70 | * |
| mbed_official | 579:53297373a894 | 71 | * The outline of this documentation is as follows: |
| mbed_official | 579:53297373a894 | 72 | * - \ref asfdoc_sam0_extint_prerequisites |
| mbed_official | 579:53297373a894 | 73 | * - \ref asfdoc_sam0_extint_module_overview |
| mbed_official | 579:53297373a894 | 74 | * - \ref asfdoc_sam0_extint_special_considerations |
| mbed_official | 579:53297373a894 | 75 | * - \ref asfdoc_sam0_extint_extra_info |
| mbed_official | 579:53297373a894 | 76 | * - \ref asfdoc_sam0_extint_examples |
| mbed_official | 579:53297373a894 | 77 | * - \ref asfdoc_sam0_extint_api_overview |
| mbed_official | 579:53297373a894 | 78 | * |
| mbed_official | 579:53297373a894 | 79 | * |
| mbed_official | 579:53297373a894 | 80 | * \section asfdoc_sam0_extint_prerequisites Prerequisites |
| mbed_official | 579:53297373a894 | 81 | * |
| mbed_official | 579:53297373a894 | 82 | * There are no prerequisites for this module. |
| mbed_official | 579:53297373a894 | 83 | * |
| mbed_official | 579:53297373a894 | 84 | * |
| mbed_official | 579:53297373a894 | 85 | * \section asfdoc_sam0_extint_module_overview Module Overview |
| mbed_official | 579:53297373a894 | 86 | * |
| mbed_official | 579:53297373a894 | 87 | * The External Interrupt (EXTINT) module provides a method of asynchronously |
| mbed_official | 579:53297373a894 | 88 | * detecting rising edge, falling edge or specific level detection on individual |
| mbed_official | 579:53297373a894 | 89 | * I/O pins of a device. This detection can then be used to trigger a software |
| mbed_official | 579:53297373a894 | 90 | * interrupt or event, or polled for later use if required. External interrupts |
| mbed_official | 579:53297373a894 | 91 | * can also optionally be used to automatically wake up the device from sleep |
| mbed_official | 579:53297373a894 | 92 | * mode, allowing the device to conserve power while still being able to react |
| mbed_official | 579:53297373a894 | 93 | * to an external stimulus in a timely manner. |
| mbed_official | 579:53297373a894 | 94 | * |
| mbed_official | 579:53297373a894 | 95 | * \subsection asfdoc_sam0_extint_logical_channels Logical Channels |
| mbed_official | 579:53297373a894 | 96 | * The External Interrupt module contains a number of logical channels, each of |
| mbed_official | 579:53297373a894 | 97 | * which is capable of being individually configured for a given pin routing, |
| mbed_official | 579:53297373a894 | 98 | * detection mode, and filtering/wake up characteristics. |
| mbed_official | 579:53297373a894 | 99 | * |
| mbed_official | 579:53297373a894 | 100 | * Each individual logical external interrupt channel may be routed to a single |
| mbed_official | 579:53297373a894 | 101 | * physical device I/O pin in order to detect a particular edge or level of the |
| mbed_official | 579:53297373a894 | 102 | * incoming signal. |
| mbed_official | 579:53297373a894 | 103 | * |
| mbed_official | 579:53297373a894 | 104 | * \subsection asfdoc_sam0_extint_module_overview_nmi_chanel NMI Channels |
| mbed_official | 579:53297373a894 | 105 | * |
| mbed_official | 579:53297373a894 | 106 | * One or more Non Maskable Interrupt (NMI) channels are provided within each |
| mbed_official | 579:53297373a894 | 107 | * physical External Interrupt Controller module, allowing a single physical pin |
| mbed_official | 579:53297373a894 | 108 | * of the device to fire a single NMI interrupt in response to a particular |
| mbed_official | 579:53297373a894 | 109 | * edge or level stimulus. A NMI cannot, as the name suggests, be disabled in |
| mbed_official | 579:53297373a894 | 110 | * firmware and will take precedence over any in-progress interrupt sources. |
| mbed_official | 579:53297373a894 | 111 | * |
| mbed_official | 579:53297373a894 | 112 | * NMIs can be used to implement critical device features such as forced |
| mbed_official | 579:53297373a894 | 113 | * software reset or other functionality where the action should be executed in |
| mbed_official | 579:53297373a894 | 114 | * preference to all other running code with a minimum amount of latency. |
| mbed_official | 579:53297373a894 | 115 | * |
| mbed_official | 579:53297373a894 | 116 | * \subsection asfdoc_sam0_extint_module_overview_filtering Input Filtering and Detection |
| mbed_official | 579:53297373a894 | 117 | * |
| mbed_official | 579:53297373a894 | 118 | * To reduce the possibility of noise or other transient signals causing |
| mbed_official | 579:53297373a894 | 119 | * unwanted device wake-ups, interrupts and/or events via an external interrupt |
| mbed_official | 579:53297373a894 | 120 | * channel, a hardware signal filter can be enabled on individual channels. This |
| mbed_official | 579:53297373a894 | 121 | * filter provides a Majority-of-Three voter filter on the incoming signal, so |
| mbed_official | 579:53297373a894 | 122 | * that the input state is considered to be the majority vote of three |
| mbed_official | 579:53297373a894 | 123 | * subsequent samples of the pin input buffer. The possible sampled input and |
| mbed_official | 579:53297373a894 | 124 | * resulting filtered output when the filter is enabled is shown in |
| mbed_official | 579:53297373a894 | 125 | * \ref asfdoc_sam0_extint_filter_table "the table below". |
| mbed_official | 579:53297373a894 | 126 | * |
| mbed_official | 579:53297373a894 | 127 | * \anchor asfdoc_sam0_extint_filter_table |
| mbed_official | 579:53297373a894 | 128 | * <table> |
| mbed_official | 579:53297373a894 | 129 | * <caption>Sampled Input and Rresulting Filtered Output</caption> |
| mbed_official | 579:53297373a894 | 130 | * <tr> |
| mbed_official | 579:53297373a894 | 131 | * <th>Input Sample 1</th> |
| mbed_official | 579:53297373a894 | 132 | * <th>Input Sample 2</th> |
| mbed_official | 579:53297373a894 | 133 | * <th>Input Sample 3</th> |
| mbed_official | 579:53297373a894 | 134 | * <th>Filtered Output</th> |
| mbed_official | 579:53297373a894 | 135 | * </tr> |
| mbed_official | 579:53297373a894 | 136 | * <tr> |
| mbed_official | 579:53297373a894 | 137 | * <td>0</td> <td>0</td> <td>0</td> <td>0</td> |
| mbed_official | 579:53297373a894 | 138 | * </tr> |
| mbed_official | 579:53297373a894 | 139 | * <tr> |
| mbed_official | 579:53297373a894 | 140 | * <td>0</td> <td>0</td> <td>1</td> <td>0</td> |
| mbed_official | 579:53297373a894 | 141 | * </tr> |
| mbed_official | 579:53297373a894 | 142 | * <tr> |
| mbed_official | 579:53297373a894 | 143 | * <td>0</td> <td>1</td> <td>0</td> <td>0</td> |
| mbed_official | 579:53297373a894 | 144 | * </tr> |
| mbed_official | 579:53297373a894 | 145 | * <tr> |
| mbed_official | 579:53297373a894 | 146 | * <td>0</td> <td>1</td> <td>1</td> <td>1</td> |
| mbed_official | 579:53297373a894 | 147 | * </tr> |
| mbed_official | 579:53297373a894 | 148 | * <tr> |
| mbed_official | 579:53297373a894 | 149 | * <td>1</td> <td>0</td> <td>0</td> <td>0</td> |
| mbed_official | 579:53297373a894 | 150 | * </tr> |
| mbed_official | 579:53297373a894 | 151 | * <tr> |
| mbed_official | 579:53297373a894 | 152 | * <td>1</td> <td>0</td> <td>1</td> <td>1</td> |
| mbed_official | 579:53297373a894 | 153 | * </tr> |
| mbed_official | 579:53297373a894 | 154 | * <tr> |
| mbed_official | 579:53297373a894 | 155 | * <td>1</td> <td>1</td> <td>0</td> <td>1</td> |
| mbed_official | 579:53297373a894 | 156 | * </tr> |
| mbed_official | 579:53297373a894 | 157 | * <tr> |
| mbed_official | 579:53297373a894 | 158 | * <td>1</td> <td>1</td> <td>1</td> <td>1</td> |
| mbed_official | 579:53297373a894 | 159 | * </tr> |
| mbed_official | 579:53297373a894 | 160 | * </table> |
| mbed_official | 579:53297373a894 | 161 | * |
| mbed_official | 579:53297373a894 | 162 | * \subsection asfdoc_sam0_extint_module_overview_events Events and Interrupts |
| mbed_official | 579:53297373a894 | 163 | * |
| mbed_official | 579:53297373a894 | 164 | * Channel detection states may be polled inside the application for synchronous |
| mbed_official | 579:53297373a894 | 165 | * detection, or events and interrupts may be used for asynchronous behavior. |
| mbed_official | 579:53297373a894 | 166 | * Each channel can be configured to give an asynchronous hardware event (which |
| mbed_official | 579:53297373a894 | 167 | * may in turn trigger actions in other hardware modules) or an asynchronous |
| mbed_official | 579:53297373a894 | 168 | * software interrupt. |
| mbed_official | 579:53297373a894 | 169 | * |
| mbed_official | 579:53297373a894 | 170 | * \note The connection of events between modules requires the use of the |
| mbed_official | 579:53297373a894 | 171 | * \ref asfdoc_sam0_events_group "SAM Event System Driver (EVENTS)" |
| mbed_official | 579:53297373a894 | 172 | * to route output event of one module to the input event of another. |
| mbed_official | 579:53297373a894 | 173 | * For more information on event routing, refer to the event driver |
| mbed_official | 579:53297373a894 | 174 | * documentation. |
| mbed_official | 579:53297373a894 | 175 | * |
| mbed_official | 579:53297373a894 | 176 | * \subsection asfdoc_sam0_extint_module_overview_physical Physical Connection |
| mbed_official | 579:53297373a894 | 177 | * |
| mbed_official | 579:53297373a894 | 178 | * \ref asfdoc_sam0_extint_int_connections "The diagram below" shows how this |
| mbed_official | 579:53297373a894 | 179 | * module is interconnected within the device. |
| mbed_official | 579:53297373a894 | 180 | * |
| mbed_official | 579:53297373a894 | 181 | * \anchor asfdoc_sam0_extint_int_connections |
| mbed_official | 579:53297373a894 | 182 | * \dot |
| mbed_official | 579:53297373a894 | 183 | * digraph overview { |
| mbed_official | 579:53297373a894 | 184 | * node [label="Port Pad" shape=square] pad; |
| mbed_official | 579:53297373a894 | 185 | * |
| mbed_official | 579:53297373a894 | 186 | * subgraph driver { |
| mbed_official | 579:53297373a894 | 187 | * node [label="Peripheral MUX" shape=trapezium] pinmux; |
| mbed_official | 579:53297373a894 | 188 | * node [label="EIC Module" shape=ellipse] eic; |
| mbed_official | 579:53297373a894 | 189 | * node [label="Other Peripheral Modules" shape=ellipse style=filled fillcolor=lightgray] peripherals; |
| mbed_official | 579:53297373a894 | 190 | * } |
| mbed_official | 579:53297373a894 | 191 | * |
| mbed_official | 579:53297373a894 | 192 | * pinmux -> eic; |
| mbed_official | 579:53297373a894 | 193 | * pad -> pinmux; |
| mbed_official | 579:53297373a894 | 194 | * pinmux -> peripherals; |
| mbed_official | 579:53297373a894 | 195 | * } |
| mbed_official | 579:53297373a894 | 196 | * \enddot |
| mbed_official | 579:53297373a894 | 197 | * |
| mbed_official | 579:53297373a894 | 198 | * \section asfdoc_sam0_extint_special_considerations Special Considerations |
| mbed_official | 579:53297373a894 | 199 | * |
| mbed_official | 579:53297373a894 | 200 | * Not all devices support disabling of the NMI channel(s) detection mode - see |
| mbed_official | 579:53297373a894 | 201 | * your device datasheet. |
| mbed_official | 579:53297373a894 | 202 | * |
| mbed_official | 579:53297373a894 | 203 | * |
| mbed_official | 579:53297373a894 | 204 | * \section asfdoc_sam0_extint_extra_info Extra Information |
| mbed_official | 579:53297373a894 | 205 | * |
| mbed_official | 579:53297373a894 | 206 | * For extra information, see \ref asfdoc_sam0_extint_extra. This includes: |
| mbed_official | 579:53297373a894 | 207 | * - \ref asfdoc_sam0_extint_extra_acronyms |
| mbed_official | 579:53297373a894 | 208 | * - \ref asfdoc_sam0_extint_extra_dependencies |
| mbed_official | 579:53297373a894 | 209 | * - \ref asfdoc_sam0_extint_extra_errata |
| mbed_official | 579:53297373a894 | 210 | * - \ref asfdoc_sam0_extint_extra_history |
| mbed_official | 579:53297373a894 | 211 | * |
| mbed_official | 579:53297373a894 | 212 | * |
| mbed_official | 579:53297373a894 | 213 | * \section asfdoc_sam0_extint_examples Examples |
| mbed_official | 579:53297373a894 | 214 | * |
| mbed_official | 579:53297373a894 | 215 | * For a list of examples related to this driver, see |
| mbed_official | 579:53297373a894 | 216 | * \ref asfdoc_sam0_extint_exqsg. |
| mbed_official | 579:53297373a894 | 217 | * |
| mbed_official | 579:53297373a894 | 218 | * |
| mbed_official | 579:53297373a894 | 219 | * \section asfdoc_sam0_extint_api_overview API Overview |
| mbed_official | 579:53297373a894 | 220 | * @{ |
| mbed_official | 579:53297373a894 | 221 | */ |
| mbed_official | 579:53297373a894 | 222 | |
| mbed_official | 579:53297373a894 | 223 | #include <compiler.h> |
| mbed_official | 579:53297373a894 | 224 | #include <pinmux.h> |
| mbed_official | 579:53297373a894 | 225 | |
| mbed_official | 579:53297373a894 | 226 | #ifdef __cplusplus |
| mbed_official | 579:53297373a894 | 227 | extern "C" { |
| mbed_official | 579:53297373a894 | 228 | #endif |
| mbed_official | 579:53297373a894 | 229 | |
| mbed_official | 579:53297373a894 | 230 | /** |
| mbed_official | 579:53297373a894 | 231 | * \brief External interrupt edge detection configuration enum. |
| mbed_official | 579:53297373a894 | 232 | * |
| mbed_official | 579:53297373a894 | 233 | * Enum for the possible signal edge detection modes of the External |
| mbed_official | 579:53297373a894 | 234 | * Interrupt Controller module. |
| mbed_official | 579:53297373a894 | 235 | */ |
| mbed_official | 579:53297373a894 | 236 | enum extint_detect { |
| mbed_official | 579:53297373a894 | 237 | /** No edge detection. Not allowed as a NMI detection mode on some |
| mbed_official | 579:53297373a894 | 238 | * devices. */ |
| mbed_official | 579:53297373a894 | 239 | EXTINT_DETECT_NONE = 0, |
| mbed_official | 579:53297373a894 | 240 | /** Detect rising signal edges. */ |
| mbed_official | 579:53297373a894 | 241 | EXTINT_DETECT_RISING = 1, |
| mbed_official | 579:53297373a894 | 242 | /** Detect falling signal edges. */ |
| mbed_official | 579:53297373a894 | 243 | EXTINT_DETECT_FALLING = 2, |
| mbed_official | 579:53297373a894 | 244 | /** Detect both signal edges. */ |
| mbed_official | 579:53297373a894 | 245 | EXTINT_DETECT_BOTH = 3, |
| mbed_official | 579:53297373a894 | 246 | /** Detect high signal levels. */ |
| mbed_official | 579:53297373a894 | 247 | EXTINT_DETECT_HIGH = 4, |
| mbed_official | 579:53297373a894 | 248 | /** Detect low signal levels. */ |
| mbed_official | 579:53297373a894 | 249 | EXTINT_DETECT_LOW = 5, |
| mbed_official | 579:53297373a894 | 250 | }; |
| mbed_official | 579:53297373a894 | 251 | |
| mbed_official | 579:53297373a894 | 252 | /** |
| mbed_official | 579:53297373a894 | 253 | * \brief External interrupt internal pull configuration enum. |
| mbed_official | 579:53297373a894 | 254 | * |
| mbed_official | 579:53297373a894 | 255 | * Enum for the possible pin internal pull configurations. |
| mbed_official | 579:53297373a894 | 256 | * |
| mbed_official | 579:53297373a894 | 257 | * \note Disabling the internal pull resistor is not recommended if the driver |
| mbed_official | 579:53297373a894 | 258 | * is used in interrupt (callback) mode, due the possibility of floating |
| mbed_official | 579:53297373a894 | 259 | * inputs generating continuous interrupts. |
| mbed_official | 579:53297373a894 | 260 | */ |
| mbed_official | 579:53297373a894 | 261 | enum extint_pull { |
| mbed_official | 579:53297373a894 | 262 | /** Internal pull-up resistor is enabled on the pin. */ |
| mbed_official | 579:53297373a894 | 263 | EXTINT_PULL_UP = SYSTEM_PINMUX_PIN_PULL_UP, |
| mbed_official | 579:53297373a894 | 264 | /** Internal pull-down resistor is enabled on the pin. */ |
| mbed_official | 579:53297373a894 | 265 | EXTINT_PULL_DOWN = SYSTEM_PINMUX_PIN_PULL_DOWN, |
| mbed_official | 579:53297373a894 | 266 | /** Internal pull resistor is disconnected from the pin. */ |
| mbed_official | 579:53297373a894 | 267 | EXTINT_PULL_NONE = SYSTEM_PINMUX_PIN_PULL_NONE, |
| mbed_official | 579:53297373a894 | 268 | }; |
| mbed_official | 579:53297373a894 | 269 | |
| mbed_official | 579:53297373a894 | 270 | /** The EIC is clocked by GCLK_EIC. */ |
| mbed_official | 579:53297373a894 | 271 | #define EXTINT_CLK_GCLK 0 |
| mbed_official | 579:53297373a894 | 272 | /** The EIC is clocked by CLK_ULP32K. */ |
| mbed_official | 579:53297373a894 | 273 | #define EXTINT_CLK_ULP32K 1 |
| mbed_official | 579:53297373a894 | 274 | |
| mbed_official | 579:53297373a894 | 275 | /** |
| mbed_official | 579:53297373a894 | 276 | * \brief External Interrupt Controller channel configuration structure. |
| mbed_official | 579:53297373a894 | 277 | * |
| mbed_official | 579:53297373a894 | 278 | * Configuration structure for the edge detection mode of an external |
| mbed_official | 579:53297373a894 | 279 | * interrupt channel. |
| mbed_official | 579:53297373a894 | 280 | */ |
| mbed_official | 579:53297373a894 | 281 | struct extint_chan_conf { |
| mbed_official | 579:53297373a894 | 282 | /** GPIO pin the NMI should be connected to. */ |
| mbed_official | 579:53297373a894 | 283 | uint32_t gpio_pin; |
| mbed_official | 579:53297373a894 | 284 | /** MUX position the GPIO pin should be configured to. */ |
| mbed_official | 579:53297373a894 | 285 | uint32_t gpio_pin_mux; |
| mbed_official | 579:53297373a894 | 286 | /** Internal pull to enable on the input pin. */ |
| mbed_official | 579:53297373a894 | 287 | enum extint_pull gpio_pin_pull; |
| mbed_official | 579:53297373a894 | 288 | #if (SAML21) |
| mbed_official | 579:53297373a894 | 289 | /** Enable asynchronous edge detection. */ |
| mbed_official | 579:53297373a894 | 290 | bool enable_async_edge_detection; |
| mbed_official | 579:53297373a894 | 291 | #else |
| mbed_official | 579:53297373a894 | 292 | /** Wake up the device if the channel interrupt fires during sleep mode. */ |
| mbed_official | 579:53297373a894 | 293 | bool wake_if_sleeping; |
| mbed_official | 579:53297373a894 | 294 | #endif |
| mbed_official | 579:53297373a894 | 295 | /** Filter the raw input signal to prevent noise from triggering an |
| mbed_official | 579:53297373a894 | 296 | * interrupt accidentally, using a 3 sample majority filter. */ |
| mbed_official | 579:53297373a894 | 297 | bool filter_input_signal; |
| mbed_official | 579:53297373a894 | 298 | /** Edge detection mode to use. */ |
| mbed_official | 579:53297373a894 | 299 | enum extint_detect detection_criteria; |
| mbed_official | 579:53297373a894 | 300 | }; |
| mbed_official | 579:53297373a894 | 301 | |
| mbed_official | 579:53297373a894 | 302 | /** |
| mbed_official | 579:53297373a894 | 303 | * \brief External Interrupt event enable/disable structure. |
| mbed_official | 579:53297373a894 | 304 | * |
| mbed_official | 579:53297373a894 | 305 | * Event flags for the \ref extint_enable_events() and |
| mbed_official | 579:53297373a894 | 306 | * \ref extint_disable_events(). |
| mbed_official | 579:53297373a894 | 307 | */ |
| mbed_official | 579:53297373a894 | 308 | struct extint_events { |
| mbed_official | 579:53297373a894 | 309 | /** If \c true, an event will be generated when an external interrupt |
| mbed_official | 579:53297373a894 | 310 | * channel detection state changes. */ |
| mbed_official | 579:53297373a894 | 311 | bool generate_event_on_detect[32 * EIC_INST_NUM]; |
| mbed_official | 579:53297373a894 | 312 | }; |
| mbed_official | 579:53297373a894 | 313 | |
| mbed_official | 579:53297373a894 | 314 | /** |
| mbed_official | 579:53297373a894 | 315 | * \brief External Interrupt Controller NMI configuration structure. |
| mbed_official | 579:53297373a894 | 316 | * |
| mbed_official | 579:53297373a894 | 317 | * Configuration structure for the edge detection mode of an external |
| mbed_official | 579:53297373a894 | 318 | * interrupt NMI channel. |
| mbed_official | 579:53297373a894 | 319 | */ |
| mbed_official | 579:53297373a894 | 320 | struct extint_nmi_conf { |
| mbed_official | 579:53297373a894 | 321 | /** GPIO pin the NMI should be connected to. */ |
| mbed_official | 579:53297373a894 | 322 | uint32_t gpio_pin; |
| mbed_official | 579:53297373a894 | 323 | /** MUX position the GPIO pin should be configured to. */ |
| mbed_official | 579:53297373a894 | 324 | uint32_t gpio_pin_mux; |
| mbed_official | 579:53297373a894 | 325 | /** Internal pull to enable on the input pin. */ |
| mbed_official | 579:53297373a894 | 326 | enum extint_pull gpio_pin_pull; |
| mbed_official | 579:53297373a894 | 327 | /** Filter the raw input signal to prevent noise from triggering an |
| mbed_official | 579:53297373a894 | 328 | * interrupt accidentally, using a 3 sample majority filter. */ |
| mbed_official | 579:53297373a894 | 329 | bool filter_input_signal; |
| mbed_official | 579:53297373a894 | 330 | /** Edge detection mode to use. Not all devices support all possible |
| mbed_official | 579:53297373a894 | 331 | * detection modes for NMIs. |
| mbed_official | 579:53297373a894 | 332 | */ |
| mbed_official | 579:53297373a894 | 333 | enum extint_detect detection_criteria; |
| mbed_official | 579:53297373a894 | 334 | #if (SAML21) |
| mbed_official | 579:53297373a894 | 335 | /** Enable asynchronous edge detection. */ |
| mbed_official | 579:53297373a894 | 336 | bool enable_async_edge_detection; |
| mbed_official | 579:53297373a894 | 337 | #endif |
| mbed_official | 579:53297373a894 | 338 | }; |
| mbed_official | 579:53297373a894 | 339 | // TEMP: Commented by V |
| mbed_official | 579:53297373a894 | 340 | //#if EXTINT_CALLBACK_MODE == true |
| mbed_official | 579:53297373a894 | 341 | /** Type definition for an EXTINT module callback function. */ |
| mbed_official | 579:53297373a894 | 342 | typedef void (*extint_callback_t)(void); |
| mbed_official | 579:53297373a894 | 343 | |
| mbed_official | 579:53297373a894 | 344 | #ifndef EIC_NUMBER_OF_INTERRUPTS |
| mbed_official | 579:53297373a894 | 345 | # define EIC_NUMBER_OF_INTERRUPTS 16 |
| mbed_official | 579:53297373a894 | 346 | #endif |
| mbed_official | 579:53297373a894 | 347 | //#endif |
| mbed_official | 579:53297373a894 | 348 | |
| mbed_official | 579:53297373a894 | 349 | #if !defined(__DOXYGEN__) |
| mbed_official | 579:53297373a894 | 350 | /** \internal |
| mbed_official | 579:53297373a894 | 351 | * Internal EXTINT module device instance structure definition. |
| mbed_official | 579:53297373a894 | 352 | */ |
| mbed_official | 579:53297373a894 | 353 | struct _extint_module { |
| mbed_official | 579:53297373a894 | 354 | // TEMP: Commented by V |
| mbed_official | 579:53297373a894 | 355 | //# if EXTINT_CALLBACK_MODE == true |
| mbed_official | 579:53297373a894 | 356 | /** Asynchronous channel callback table, for user-registered handlers. */ |
| mbed_official | 579:53297373a894 | 357 | extint_callback_t callbacks[EIC_NUMBER_OF_INTERRUPTS]; |
| mbed_official | 579:53297373a894 | 358 | //# else |
| mbed_official | 579:53297373a894 | 359 | /** Dummy value to ensure the struct has at least one member */ |
| mbed_official | 579:53297373a894 | 360 | // uint8_t _dummy; |
| mbed_official | 579:53297373a894 | 361 | //# endif |
| mbed_official | 579:53297373a894 | 362 | }; |
| mbed_official | 579:53297373a894 | 363 | |
| mbed_official | 579:53297373a894 | 364 | /** |
| mbed_official | 579:53297373a894 | 365 | * \brief Retrieves the base EIC module address from a given channel number. |
| mbed_official | 579:53297373a894 | 366 | * |
| mbed_official | 579:53297373a894 | 367 | * Retrieves the base address of a EIC hardware module associated with the |
| mbed_official | 579:53297373a894 | 368 | * given external interrupt channel. |
| mbed_official | 579:53297373a894 | 369 | * |
| mbed_official | 579:53297373a894 | 370 | * \param[in] channel External interrupt channel index to convert |
| mbed_official | 579:53297373a894 | 371 | * |
| mbed_official | 579:53297373a894 | 372 | * \return Base address of the associated EIC module. |
| mbed_official | 579:53297373a894 | 373 | */ |
| mbed_official | 579:53297373a894 | 374 | static inline Eic * _extint_get_eic_from_channel( |
| mbed_official | 579:53297373a894 | 375 | const uint8_t channel) |
| mbed_official | 579:53297373a894 | 376 | { |
| mbed_official | 579:53297373a894 | 377 | uint8_t eic_index = (channel / 32); |
| mbed_official | 579:53297373a894 | 378 | |
| mbed_official | 579:53297373a894 | 379 | if (eic_index < EIC_INST_NUM) { |
| mbed_official | 579:53297373a894 | 380 | /* Array of available EICs. */ |
| mbed_official | 579:53297373a894 | 381 | Eic *const eics[EIC_INST_NUM] = EIC_INSTS; |
| mbed_official | 579:53297373a894 | 382 | |
| mbed_official | 579:53297373a894 | 383 | return eics[eic_index]; |
| mbed_official | 579:53297373a894 | 384 | } else { |
| mbed_official | 579:53297373a894 | 385 | Assert(false); |
| mbed_official | 579:53297373a894 | 386 | return NULL; |
| mbed_official | 579:53297373a894 | 387 | } |
| mbed_official | 579:53297373a894 | 388 | } |
| mbed_official | 579:53297373a894 | 389 | |
| mbed_official | 579:53297373a894 | 390 | /** |
| mbed_official | 579:53297373a894 | 391 | * \brief Retrieves the base EIC module address from a given NMI channel number. |
| mbed_official | 579:53297373a894 | 392 | * |
| mbed_official | 579:53297373a894 | 393 | * Retrieves the base address of a EIC hardware module associated with the |
| mbed_official | 579:53297373a894 | 394 | * given non-maskable external interrupt channel. |
| mbed_official | 579:53297373a894 | 395 | * |
| mbed_official | 579:53297373a894 | 396 | * \param[in] nmi_channel Non-Maskable interrupt channel index to convert |
| mbed_official | 579:53297373a894 | 397 | * |
| mbed_official | 579:53297373a894 | 398 | * \return Base address of the associated EIC module. |
| mbed_official | 579:53297373a894 | 399 | */ |
| mbed_official | 579:53297373a894 | 400 | static inline Eic * _extint_get_eic_from_nmi( |
| mbed_official | 579:53297373a894 | 401 | const uint8_t nmi_channel) |
| mbed_official | 579:53297373a894 | 402 | { |
| mbed_official | 579:53297373a894 | 403 | uint8_t eic_index = nmi_channel; |
| mbed_official | 579:53297373a894 | 404 | |
| mbed_official | 579:53297373a894 | 405 | if (eic_index < EIC_INST_NUM) { |
| mbed_official | 579:53297373a894 | 406 | /* Array of available EICs. */ |
| mbed_official | 579:53297373a894 | 407 | Eic *const eics[EIC_INST_NUM] = EIC_INSTS; |
| mbed_official | 579:53297373a894 | 408 | |
| mbed_official | 579:53297373a894 | 409 | return eics[eic_index]; |
| mbed_official | 579:53297373a894 | 410 | } else { |
| mbed_official | 579:53297373a894 | 411 | Assert(false); |
| mbed_official | 579:53297373a894 | 412 | return NULL; |
| mbed_official | 579:53297373a894 | 413 | } |
| mbed_official | 579:53297373a894 | 414 | } |
| mbed_official | 579:53297373a894 | 415 | #endif |
| mbed_official | 579:53297373a894 | 416 | |
| mbed_official | 579:53297373a894 | 417 | /** \name Event Management |
| mbed_official | 579:53297373a894 | 418 | * @{ |
| mbed_official | 579:53297373a894 | 419 | */ |
| mbed_official | 579:53297373a894 | 420 | |
| mbed_official | 579:53297373a894 | 421 | void extint_enable_events( |
| mbed_official | 579:53297373a894 | 422 | struct extint_events *const events); |
| mbed_official | 579:53297373a894 | 423 | |
| mbed_official | 579:53297373a894 | 424 | void extint_disable_events( |
| mbed_official | 579:53297373a894 | 425 | struct extint_events *const events); |
| mbed_official | 579:53297373a894 | 426 | |
| mbed_official | 579:53297373a894 | 427 | /** @} */ |
| mbed_official | 579:53297373a894 | 428 | |
| mbed_official | 579:53297373a894 | 429 | /** \name Configuration and Initialization (Channel) |
| mbed_official | 579:53297373a894 | 430 | * @{ |
| mbed_official | 579:53297373a894 | 431 | */ |
| mbed_official | 579:53297373a894 | 432 | |
| mbed_official | 579:53297373a894 | 433 | void extint_chan_get_config_defaults( |
| mbed_official | 579:53297373a894 | 434 | struct extint_chan_conf *const config); |
| mbed_official | 579:53297373a894 | 435 | |
| mbed_official | 579:53297373a894 | 436 | void extint_chan_set_config( |
| mbed_official | 579:53297373a894 | 437 | const uint8_t channel, |
| mbed_official | 579:53297373a894 | 438 | const struct extint_chan_conf *const config); |
| mbed_official | 579:53297373a894 | 439 | |
| mbed_official | 579:53297373a894 | 440 | /** @} */ |
| mbed_official | 579:53297373a894 | 441 | |
| mbed_official | 579:53297373a894 | 442 | /** \name Configuration and Initialization (NMI) |
| mbed_official | 579:53297373a894 | 443 | * @{ |
| mbed_official | 579:53297373a894 | 444 | */ |
| mbed_official | 579:53297373a894 | 445 | |
| mbed_official | 579:53297373a894 | 446 | /** |
| mbed_official | 579:53297373a894 | 447 | * \brief Initializes an External Interrupt NMI channel configuration structure to defaults. |
| mbed_official | 579:53297373a894 | 448 | * |
| mbed_official | 579:53297373a894 | 449 | * Initializes a given External Interrupt NMI channel configuration structure |
| mbed_official | 579:53297373a894 | 450 | * to a set of known default values. This function should be called on all new |
| mbed_official | 579:53297373a894 | 451 | * instances of these configuration structures before being modified by the |
| mbed_official | 579:53297373a894 | 452 | * user application. |
| mbed_official | 579:53297373a894 | 453 | * |
| mbed_official | 579:53297373a894 | 454 | * The default configuration is as follows: |
| mbed_official | 579:53297373a894 | 455 | * \li Input filtering disabled |
| mbed_official | 579:53297373a894 | 456 | * \li Detect falling edges of a signal |
| mbed_official | 579:53297373a894 | 457 | * \li Asynchronous edge detection is disabled |
| mbed_official | 579:53297373a894 | 458 | * |
| mbed_official | 579:53297373a894 | 459 | * \param[out] config Configuration structure to initialize to default values |
| mbed_official | 579:53297373a894 | 460 | */ |
| mbed_official | 579:53297373a894 | 461 | static inline void extint_nmi_get_config_defaults( |
| mbed_official | 579:53297373a894 | 462 | struct extint_nmi_conf *const config) |
| mbed_official | 579:53297373a894 | 463 | { |
| mbed_official | 579:53297373a894 | 464 | /* Sanity check arguments */ |
| mbed_official | 579:53297373a894 | 465 | Assert(config); |
| mbed_official | 579:53297373a894 | 466 | |
| mbed_official | 579:53297373a894 | 467 | /* Default configuration values */ |
| mbed_official | 579:53297373a894 | 468 | config->gpio_pin = 0; |
| mbed_official | 579:53297373a894 | 469 | config->gpio_pin_mux = 0; |
| mbed_official | 579:53297373a894 | 470 | config->gpio_pin_pull = EXTINT_PULL_UP; |
| mbed_official | 579:53297373a894 | 471 | config->filter_input_signal = false; |
| mbed_official | 579:53297373a894 | 472 | config->detection_criteria = EXTINT_DETECT_FALLING; |
| mbed_official | 579:53297373a894 | 473 | #if (SAML21) |
| mbed_official | 579:53297373a894 | 474 | config->enable_async_edge_detection = false; |
| mbed_official | 579:53297373a894 | 475 | #endif |
| mbed_official | 579:53297373a894 | 476 | |
| mbed_official | 579:53297373a894 | 477 | } |
| mbed_official | 579:53297373a894 | 478 | |
| mbed_official | 579:53297373a894 | 479 | enum status_code extint_nmi_set_config( |
| mbed_official | 579:53297373a894 | 480 | const uint8_t nmi_channel, |
| mbed_official | 579:53297373a894 | 481 | const struct extint_nmi_conf *const config); |
| mbed_official | 579:53297373a894 | 482 | |
| mbed_official | 579:53297373a894 | 483 | /** @} */ |
| mbed_official | 579:53297373a894 | 484 | |
| mbed_official | 579:53297373a894 | 485 | /** \name Detection testing and clearing (channel) |
| mbed_official | 579:53297373a894 | 486 | * @{ |
| mbed_official | 579:53297373a894 | 487 | */ |
| mbed_official | 579:53297373a894 | 488 | |
| mbed_official | 579:53297373a894 | 489 | /** |
| mbed_official | 579:53297373a894 | 490 | * \brief Retrieves the edge detection state of a configured channel. |
| mbed_official | 579:53297373a894 | 491 | * |
| mbed_official | 579:53297373a894 | 492 | * Reads the current state of a configured channel, and determines |
| mbed_official | 579:53297373a894 | 493 | * if the detection criteria of the channel has been met. |
| mbed_official | 579:53297373a894 | 494 | * |
| mbed_official | 579:53297373a894 | 495 | * \param[in] channel External Interrupt channel index to check |
| mbed_official | 579:53297373a894 | 496 | * |
| mbed_official | 579:53297373a894 | 497 | * \return Status of the requested channel's edge detection state. |
| mbed_official | 579:53297373a894 | 498 | * \retval true If the channel's edge/level detection criteria was met |
| mbed_official | 579:53297373a894 | 499 | * \retval false If the channel has not detected its configured criteria |
| mbed_official | 579:53297373a894 | 500 | */ |
| mbed_official | 579:53297373a894 | 501 | static inline bool extint_chan_is_detected( |
| mbed_official | 579:53297373a894 | 502 | const uint8_t channel) |
| mbed_official | 579:53297373a894 | 503 | { |
| mbed_official | 579:53297373a894 | 504 | Eic *const eic_module = _extint_get_eic_from_channel(channel); |
| mbed_official | 579:53297373a894 | 505 | uint32_t eic_mask = (1UL << (channel % 32)); |
| mbed_official | 579:53297373a894 | 506 | |
| mbed_official | 579:53297373a894 | 507 | return (eic_module->INTFLAG.reg & eic_mask); |
| mbed_official | 579:53297373a894 | 508 | } |
| mbed_official | 579:53297373a894 | 509 | |
| mbed_official | 579:53297373a894 | 510 | /** |
| mbed_official | 579:53297373a894 | 511 | * \brief Clears the edge detection state of a configured channel. |
| mbed_official | 579:53297373a894 | 512 | * |
| mbed_official | 579:53297373a894 | 513 | * Clears the current state of a configured channel, readying it for |
| mbed_official | 579:53297373a894 | 514 | * the next level or edge detection. |
| mbed_official | 579:53297373a894 | 515 | * |
| mbed_official | 579:53297373a894 | 516 | * \param[in] channel External Interrupt channel index to check |
| mbed_official | 579:53297373a894 | 517 | */ |
| mbed_official | 579:53297373a894 | 518 | static inline void extint_chan_clear_detected( |
| mbed_official | 579:53297373a894 | 519 | const uint8_t channel) |
| mbed_official | 579:53297373a894 | 520 | { |
| mbed_official | 579:53297373a894 | 521 | Eic *const eic_module = _extint_get_eic_from_channel(channel); |
| mbed_official | 579:53297373a894 | 522 | uint32_t eic_mask = (1UL << (channel % 32)); |
| mbed_official | 579:53297373a894 | 523 | |
| mbed_official | 579:53297373a894 | 524 | eic_module->INTFLAG.reg = eic_mask; |
| mbed_official | 579:53297373a894 | 525 | } |
| mbed_official | 579:53297373a894 | 526 | |
| mbed_official | 579:53297373a894 | 527 | /** @} */ |
| mbed_official | 579:53297373a894 | 528 | |
| mbed_official | 579:53297373a894 | 529 | /** \name Detection Testing and Clearing (NMI) |
| mbed_official | 579:53297373a894 | 530 | * @{ |
| mbed_official | 579:53297373a894 | 531 | */ |
| mbed_official | 579:53297373a894 | 532 | |
| mbed_official | 579:53297373a894 | 533 | /** |
| mbed_official | 579:53297373a894 | 534 | * \brief Retrieves the edge detection state of a configured NMI channel. |
| mbed_official | 579:53297373a894 | 535 | * |
| mbed_official | 579:53297373a894 | 536 | * Reads the current state of a configured NMI channel, and determines |
| mbed_official | 579:53297373a894 | 537 | * if the detection criteria of the NMI channel has been met. |
| mbed_official | 579:53297373a894 | 538 | * |
| mbed_official | 579:53297373a894 | 539 | * \param[in] nmi_channel External Interrupt NMI channel index to check |
| mbed_official | 579:53297373a894 | 540 | * |
| mbed_official | 579:53297373a894 | 541 | * \return Status of the requested NMI channel's edge detection state. |
| mbed_official | 579:53297373a894 | 542 | * \retval true If the NMI channel's edge/level detection criteria was met |
| mbed_official | 579:53297373a894 | 543 | * \retval false If the NMI channel has not detected its configured criteria |
| mbed_official | 579:53297373a894 | 544 | */ |
| mbed_official | 579:53297373a894 | 545 | static inline bool extint_nmi_is_detected( |
| mbed_official | 579:53297373a894 | 546 | const uint8_t nmi_channel) |
| mbed_official | 579:53297373a894 | 547 | { |
| mbed_official | 579:53297373a894 | 548 | Eic *const eic_module = _extint_get_eic_from_nmi(nmi_channel); |
| mbed_official | 579:53297373a894 | 549 | |
| mbed_official | 579:53297373a894 | 550 | return (eic_module->NMIFLAG.reg & EIC_NMIFLAG_NMI); |
| mbed_official | 579:53297373a894 | 551 | } |
| mbed_official | 579:53297373a894 | 552 | |
| mbed_official | 579:53297373a894 | 553 | /** |
| mbed_official | 579:53297373a894 | 554 | * \brief Clears the edge detection state of a configured NMI channel. |
| mbed_official | 579:53297373a894 | 555 | * |
| mbed_official | 579:53297373a894 | 556 | * Clears the current state of a configured NMI channel, readying it for |
| mbed_official | 579:53297373a894 | 557 | * the next level or edge detection. |
| mbed_official | 579:53297373a894 | 558 | * |
| mbed_official | 579:53297373a894 | 559 | * \param[in] nmi_channel External Interrupt NMI channel index to check |
| mbed_official | 579:53297373a894 | 560 | */ |
| mbed_official | 579:53297373a894 | 561 | static inline void extint_nmi_clear_detected( |
| mbed_official | 579:53297373a894 | 562 | const uint8_t nmi_channel) |
| mbed_official | 579:53297373a894 | 563 | { |
| mbed_official | 579:53297373a894 | 564 | Eic *const eic_module = _extint_get_eic_from_nmi(nmi_channel); |
| mbed_official | 579:53297373a894 | 565 | |
| mbed_official | 579:53297373a894 | 566 | eic_module->NMIFLAG.reg = EIC_NMIFLAG_NMI; |
| mbed_official | 579:53297373a894 | 567 | } |
| mbed_official | 579:53297373a894 | 568 | |
| mbed_official | 579:53297373a894 | 569 | /** @} */ |
| mbed_official | 579:53297373a894 | 570 | |
| mbed_official | 579:53297373a894 | 571 | #ifdef __cplusplus |
| mbed_official | 579:53297373a894 | 572 | } |
| mbed_official | 579:53297373a894 | 573 | #endif |
| mbed_official | 579:53297373a894 | 574 | |
| mbed_official | 579:53297373a894 | 575 | /** @} */ |
| mbed_official | 579:53297373a894 | 576 | // TEMP: Commented by V |
| mbed_official | 579:53297373a894 | 577 | //#if EXTINT_CALLBACK_MODE == true |
| mbed_official | 579:53297373a894 | 578 | # include "extint_callback.h" |
| mbed_official | 579:53297373a894 | 579 | //#endif |
| mbed_official | 579:53297373a894 | 580 | |
| mbed_official | 579:53297373a894 | 581 | /** |
| mbed_official | 579:53297373a894 | 582 | * \page asfdoc_sam0_extint_extra Extra Information for EXTINT Driver |
| mbed_official | 579:53297373a894 | 583 | * |
| mbed_official | 579:53297373a894 | 584 | * \section asfdoc_sam0_extint_extra_acronyms Acronyms |
| mbed_official | 579:53297373a894 | 585 | * The table below presents the acronyms used in this module: |
| mbed_official | 579:53297373a894 | 586 | * |
| mbed_official | 579:53297373a894 | 587 | * <table> |
| mbed_official | 579:53297373a894 | 588 | * <tr> |
| mbed_official | 579:53297373a894 | 589 | * <th>Acronym</th> |
| mbed_official | 579:53297373a894 | 590 | * <th>Description</th> |
| mbed_official | 579:53297373a894 | 591 | * </tr> |
| mbed_official | 579:53297373a894 | 592 | * <tr> |
| mbed_official | 579:53297373a894 | 593 | * <td>EIC</td> |
| mbed_official | 579:53297373a894 | 594 | * <td>External Interrupt Controller</td> |
| mbed_official | 579:53297373a894 | 595 | * </tr> |
| mbed_official | 579:53297373a894 | 596 | * <tr> |
| mbed_official | 579:53297373a894 | 597 | * <td>MUX</td> |
| mbed_official | 579:53297373a894 | 598 | * <td>Multiplexer</td> |
| mbed_official | 579:53297373a894 | 599 | * </tr> |
| mbed_official | 579:53297373a894 | 600 | * <tr> |
| mbed_official | 579:53297373a894 | 601 | * <td>NMI</td> |
| mbed_official | 579:53297373a894 | 602 | * <td>Non-Maskable Interrupt</td> |
| mbed_official | 579:53297373a894 | 603 | * </tr> |
| mbed_official | 579:53297373a894 | 604 | * </table> |
| mbed_official | 579:53297373a894 | 605 | * |
| mbed_official | 579:53297373a894 | 606 | * |
| mbed_official | 579:53297373a894 | 607 | * \section asfdoc_sam0_extint_extra_dependencies Dependencies |
| mbed_official | 579:53297373a894 | 608 | * This driver has the following dependencies: |
| mbed_official | 579:53297373a894 | 609 | * |
| mbed_official | 579:53297373a894 | 610 | * - \ref asfdoc_sam0_system_pinmux_group "System Pin Multiplexer Driver" |
| mbed_official | 579:53297373a894 | 611 | * |
| mbed_official | 579:53297373a894 | 612 | * |
| mbed_official | 579:53297373a894 | 613 | * \section asfdoc_sam0_extint_extra_errata Errata |
| mbed_official | 579:53297373a894 | 614 | * There are no errata related to this driver. |
| mbed_official | 579:53297373a894 | 615 | * |
| mbed_official | 579:53297373a894 | 616 | * |
| mbed_official | 579:53297373a894 | 617 | * \section asfdoc_sam0_extint_extra_history Module History |
| mbed_official | 579:53297373a894 | 618 | * An overview of the module history is presented in the table below, with |
| mbed_official | 579:53297373a894 | 619 | * details on the enhancements and fixes made to the module since its first |
| mbed_official | 579:53297373a894 | 620 | * release. The current version of this corresponds to the newest version in |
| mbed_official | 579:53297373a894 | 621 | * the table. |
| mbed_official | 579:53297373a894 | 622 | * |
| mbed_official | 579:53297373a894 | 623 | * <table> |
| mbed_official | 579:53297373a894 | 624 | * <tr> |
| mbed_official | 579:53297373a894 | 625 | * <th>Changelog</th> |
| mbed_official | 579:53297373a894 | 626 | * </tr> |
| mbed_official | 579:53297373a894 | 627 | * <tr> |
| mbed_official | 579:53297373a894 | 628 | * <td>Add SAML21 support</td> |
| mbed_official | 579:53297373a894 | 629 | * </tr> |
| mbed_official | 579:53297373a894 | 630 | * <tr> |
| mbed_official | 579:53297373a894 | 631 | * <td>Add SAMR21 support</td> |
| mbed_official | 579:53297373a894 | 632 | * </tr> |
| mbed_official | 579:53297373a894 | 633 | * <tr> |
| mbed_official | 579:53297373a894 | 634 | * <td> |
| mbed_official | 579:53297373a894 | 635 | * \li Driver updated to follow driver type convention. |
| mbed_official | 579:53297373a894 | 636 | * \li Removed \c %extint_reset(), \c %extint_disable() and |
| mbed_official | 579:53297373a894 | 637 | * \c extint_enable() functions. Added internal function |
| mbed_official | 579:53297373a894 | 638 | * \c %_system_extint_init(). |
| mbed_official | 579:53297373a894 | 639 | * \li Added configuration EXTINT_CLOCK_SOURCE in conf_extint.h. |
| mbed_official | 579:53297373a894 | 640 | * \li Removed configuration EXTINT_CALLBACKS_MAX in conf_extint.h, and |
| mbed_official | 579:53297373a894 | 641 | * added channel parameter in the register functions |
| mbed_official | 579:53297373a894 | 642 | * \c %extint_register_callback() and \c %extint_unregister_callback(). |
| mbed_official | 579:53297373a894 | 643 | * </td> |
| mbed_official | 579:53297373a894 | 644 | * </tr> |
| mbed_official | 579:53297373a894 | 645 | * <tr> |
| mbed_official | 579:53297373a894 | 646 | * <td>Updated interrupt handler to clear interrupt flag before calling |
| mbed_official | 579:53297373a894 | 647 | * callback function.</td> |
| mbed_official | 579:53297373a894 | 648 | * </tr> |
| mbed_official | 579:53297373a894 | 649 | * <tr> |
| mbed_official | 579:53297373a894 | 650 | * <td>Updated initialization function to also enable the digital interface |
| mbed_official | 579:53297373a894 | 651 | * clock to the module if it is disabled.</td> |
| mbed_official | 579:53297373a894 | 652 | * </tr> |
| mbed_official | 579:53297373a894 | 653 | * <tr> |
| mbed_official | 579:53297373a894 | 654 | * <td>Initial Release</td> |
| mbed_official | 579:53297373a894 | 655 | * </tr> |
| mbed_official | 579:53297373a894 | 656 | * </table> |
| mbed_official | 579:53297373a894 | 657 | */ |
| mbed_official | 579:53297373a894 | 658 | |
| mbed_official | 579:53297373a894 | 659 | /** |
| mbed_official | 579:53297373a894 | 660 | * \page asfdoc_sam0_extint_exqsg Examples for EXTINT Driver |
| mbed_official | 579:53297373a894 | 661 | * |
| mbed_official | 579:53297373a894 | 662 | * This is a list of the available Quick Start guides (QSGs) and example |
| mbed_official | 579:53297373a894 | 663 | * applications for \ref asfdoc_sam0_extint_group. |
| mbed_official | 579:53297373a894 | 664 | * QSGs are simple examples with step-by-step instructions to configure and |
| mbed_official | 579:53297373a894 | 665 | * use this driver in a selection of use cases. Note that QSGs can be compiled |
| mbed_official | 579:53297373a894 | 666 | * as a standalone application or be added to the user application. |
| mbed_official | 579:53297373a894 | 667 | * |
| mbed_official | 579:53297373a894 | 668 | * - \subpage asfdoc_sam0_extint_basic_use_case |
| mbed_official | 579:53297373a894 | 669 | * \if EXTINT_CALLBACK_MODE |
| mbed_official | 579:53297373a894 | 670 | * - \subpage asfdoc_sam0_extint_callback_use_case |
| mbed_official | 579:53297373a894 | 671 | * \endif |
| mbed_official | 579:53297373a894 | 672 | * |
| mbed_official | 579:53297373a894 | 673 | * \page asfdoc_sam0_extint_document_revision_history Document Revision History |
| mbed_official | 579:53297373a894 | 674 | * |
| mbed_official | 579:53297373a894 | 675 | * <table> |
| mbed_official | 579:53297373a894 | 676 | * <tr> |
| mbed_official | 579:53297373a894 | 677 | * <th>Doc. Rev.</td> |
| mbed_official | 579:53297373a894 | 678 | * <th>Date</td> |
| mbed_official | 579:53297373a894 | 679 | * <th>Comments</td> |
| mbed_official | 579:53297373a894 | 680 | * </tr> |
| mbed_official | 579:53297373a894 | 681 | * <tr> |
| mbed_official | 579:53297373a894 | 682 | * <td>E</td> |
| mbed_official | 579:53297373a894 | 683 | * <td>12/2014</td> |
| mbed_official | 579:53297373a894 | 684 | * <td>Added support for SAML21.</td> |
| mbed_official | 579:53297373a894 | 685 | * </tr> |
| mbed_official | 579:53297373a894 | 686 | * <tr> |
| mbed_official | 579:53297373a894 | 687 | * <td>D</td> |
| mbed_official | 579:53297373a894 | 688 | * <td>12/2014</td> |
| mbed_official | 579:53297373a894 | 689 | * <td>Added support for SAMR21 and SAMD10/D11.</td> |
| mbed_official | 579:53297373a894 | 690 | * </tr> |
| mbed_official | 579:53297373a894 | 691 | * <tr> |
| mbed_official | 579:53297373a894 | 692 | * <td>C</td> |
| mbed_official | 579:53297373a894 | 693 | * <td>01/2014</td> |
| mbed_official | 579:53297373a894 | 694 | * <td>Added support for SAMD21.</td> |
| mbed_official | 579:53297373a894 | 695 | * </tr> |
| mbed_official | 579:53297373a894 | 696 | * <tr> |
| mbed_official | 579:53297373a894 | 697 | * <td>B</td> |
| mbed_official | 579:53297373a894 | 698 | * <td>06/2013</td> |
| mbed_official | 579:53297373a894 | 699 | * <td>Added additional documentation on the event system. Corrected |
| mbed_official | 579:53297373a894 | 700 | * documentation typos.</td> |
| mbed_official | 579:53297373a894 | 701 | * </tr> |
| mbed_official | 579:53297373a894 | 702 | * <tr> |
| mbed_official | 579:53297373a894 | 703 | * <td>A</td> |
| mbed_official | 579:53297373a894 | 704 | * <td>06/2013</td> |
| mbed_official | 579:53297373a894 | 705 | * <td>Initial release</td> |
| mbed_official | 579:53297373a894 | 706 | * </tr> |
| mbed_official | 579:53297373a894 | 707 | * </table> |
| mbed_official | 579:53297373a894 | 708 | */ |
| mbed_official | 579:53297373a894 | 709 | |
| mbed_official | 579:53297373a894 | 710 | #endif |
