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Last commit 20 Feb 2019 by 
mbed official
targets/hal/TARGET_Atmel/TARGET_SAM21/drivers/port/port.c@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 GPIO Port 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 | #include <port.h> |
| mbed_official | 579:53297373a894 | 47 | |
| mbed_official | 579:53297373a894 | 48 | /** |
| mbed_official | 579:53297373a894 | 49 | * \brief Writes a Port pin configuration to the hardware module. |
| mbed_official | 579:53297373a894 | 50 | * |
| mbed_official | 579:53297373a894 | 51 | * Writes out a given configuration of a Port pin configuration to the hardware |
| mbed_official | 579:53297373a894 | 52 | * module. |
| mbed_official | 579:53297373a894 | 53 | * |
| mbed_official | 579:53297373a894 | 54 | * \note If the pin direction is set as an output, the pull-up/pull-down input |
| mbed_official | 579:53297373a894 | 55 | * configuration setting is ignored. |
| mbed_official | 579:53297373a894 | 56 | * |
| mbed_official | 579:53297373a894 | 57 | * \param[in] gpio_pin Index of the GPIO pin to configure |
| mbed_official | 579:53297373a894 | 58 | * \param[in] config Configuration settings for the pin |
| mbed_official | 579:53297373a894 | 59 | */ |
| mbed_official | 579:53297373a894 | 60 | void port_pin_set_config( |
| mbed_official | 579:53297373a894 | 61 | const uint8_t gpio_pin, |
| mbed_official | 579:53297373a894 | 62 | const struct port_config *const config) |
| mbed_official | 579:53297373a894 | 63 | { |
| mbed_official | 579:53297373a894 | 64 | /* Sanity check arguments */ |
| mbed_official | 579:53297373a894 | 65 | Assert(config); |
| mbed_official | 579:53297373a894 | 66 | |
| mbed_official | 579:53297373a894 | 67 | struct system_pinmux_config pinmux_config; |
| mbed_official | 579:53297373a894 | 68 | system_pinmux_get_config_defaults(&pinmux_config); |
| mbed_official | 579:53297373a894 | 69 | |
| mbed_official | 579:53297373a894 | 70 | pinmux_config.mux_position = SYSTEM_PINMUX_GPIO; |
| mbed_official | 579:53297373a894 | 71 | pinmux_config.direction = (enum system_pinmux_pin_dir)config->direction; |
| mbed_official | 579:53297373a894 | 72 | pinmux_config.input_pull = (enum system_pinmux_pin_pull)config->input_pull; |
| mbed_official | 579:53297373a894 | 73 | pinmux_config.powersave = config->powersave; |
| mbed_official | 579:53297373a894 | 74 | |
| mbed_official | 579:53297373a894 | 75 | system_pinmux_pin_set_config(gpio_pin, &pinmux_config); |
| mbed_official | 579:53297373a894 | 76 | } |
| mbed_official | 579:53297373a894 | 77 | |
| mbed_official | 579:53297373a894 | 78 | /** |
| mbed_official | 579:53297373a894 | 79 | * \brief Writes a Port group configuration group to the hardware module. |
| mbed_official | 579:53297373a894 | 80 | * |
| mbed_official | 579:53297373a894 | 81 | * Writes out a given configuration of a Port group configuration to the |
| mbed_official | 579:53297373a894 | 82 | * hardware module. |
| mbed_official | 579:53297373a894 | 83 | * |
| mbed_official | 579:53297373a894 | 84 | * \note If the pin direction is set as an output, the pull-up/pull-down input |
| mbed_official | 579:53297373a894 | 85 | * configuration setting is ignored. |
| mbed_official | 579:53297373a894 | 86 | * |
| mbed_official | 579:53297373a894 | 87 | * \param[out] port Base of the PORT module to write to |
| mbed_official | 579:53297373a894 | 88 | * \param[in] mask Mask of the port pin(s) to configure |
| mbed_official | 579:53297373a894 | 89 | * \param[in] config Configuration settings for the pin group |
| mbed_official | 579:53297373a894 | 90 | */ |
| mbed_official | 579:53297373a894 | 91 | void port_group_set_config( |
| mbed_official | 579:53297373a894 | 92 | PortGroup *const port, |
| mbed_official | 579:53297373a894 | 93 | const uint32_t mask, |
| mbed_official | 579:53297373a894 | 94 | const struct port_config *const config) |
| mbed_official | 579:53297373a894 | 95 | { |
| mbed_official | 579:53297373a894 | 96 | /* Sanity check arguments */ |
| mbed_official | 579:53297373a894 | 97 | Assert(port); |
| mbed_official | 579:53297373a894 | 98 | Assert(config); |
| mbed_official | 579:53297373a894 | 99 | |
| mbed_official | 579:53297373a894 | 100 | struct system_pinmux_config pinmux_config; |
| mbed_official | 579:53297373a894 | 101 | system_pinmux_get_config_defaults(&pinmux_config); |
| mbed_official | 579:53297373a894 | 102 | |
| mbed_official | 579:53297373a894 | 103 | pinmux_config.mux_position = SYSTEM_PINMUX_GPIO; |
| mbed_official | 579:53297373a894 | 104 | pinmux_config.direction = (enum system_pinmux_pin_dir)config->direction; |
| mbed_official | 579:53297373a894 | 105 | pinmux_config.input_pull = (enum system_pinmux_pin_pull)config->input_pull; |
| mbed_official | 579:53297373a894 | 106 | pinmux_config.powersave = config->powersave; |
| mbed_official | 579:53297373a894 | 107 | |
| mbed_official | 579:53297373a894 | 108 | system_pinmux_group_set_config(port, mask, &pinmux_config); |
| mbed_official | 579:53297373a894 | 109 | } |
