ON Semiconductor / mbed-os

5.2.1 - Updated I2C files

Dependents:   mbed-TFT-example-NCS36510 mbed-Accelerometer-example-NCS36510 mbed-Accelerometer-example-NCS36510

targets/TARGET_Maxim/TARGET_MAX32600/gpio_api.c@0:098463de4c5d, 2017-01-25 (annotated)

Committer:
group-onsemi
Date:
Wed Jan 25 20:34:15 2017 +0000
Revision:
0:098463de4c5d
Initial commit

Who changed what in which revision?

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group-onsemi 0:098463de4c5d 1 /*******************************************************************************
group-onsemi 0:098463de4c5d 2 * Copyright (C) 2015 Maxim Integrated Products, Inc., All Rights Reserved.
group-onsemi 0:098463de4c5d 3 *
group-onsemi 0:098463de4c5d 4 * Permission is hereby granted, free of charge, to any person obtaining a
group-onsemi 0:098463de4c5d 5 * copy of this software and associated documentation files (the "Software"),
group-onsemi 0:098463de4c5d 6 * to deal in the Software without restriction, including without limitation
group-onsemi 0:098463de4c5d 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
group-onsemi 0:098463de4c5d 8 * and/or sell copies of the Software, and to permit persons to whom the
group-onsemi 0:098463de4c5d 9 * Software is furnished to do so, subject to the following conditions:
group-onsemi 0:098463de4c5d 10 *
group-onsemi 0:098463de4c5d 11 * The above copyright notice and this permission notice shall be included
group-onsemi 0:098463de4c5d 12 * in all copies or substantial portions of the Software.
group-onsemi 0:098463de4c5d 13 *
group-onsemi 0:098463de4c5d 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
group-onsemi 0:098463de4c5d 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
group-onsemi 0:098463de4c5d 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
group-onsemi 0:098463de4c5d 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
group-onsemi 0:098463de4c5d 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
group-onsemi 0:098463de4c5d 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
group-onsemi 0:098463de4c5d 20 * OTHER DEALINGS IN THE SOFTWARE.
group-onsemi 0:098463de4c5d 21 *
group-onsemi 0:098463de4c5d 22 * Except as contained in this notice, the name of Maxim Integrated
group-onsemi 0:098463de4c5d 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
group-onsemi 0:098463de4c5d 24 * Products, Inc. Branding Policy.
group-onsemi 0:098463de4c5d 25 *
group-onsemi 0:098463de4c5d 26 * The mere transfer of this software does not imply any licenses
group-onsemi 0:098463de4c5d 27 * of trade secrets, proprietary technology, copyrights, patents,
group-onsemi 0:098463de4c5d 28 * trademarks, maskwork rights, or any other form of intellectual
group-onsemi 0:098463de4c5d 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
group-onsemi 0:098463de4c5d 30 * ownership rights.
group-onsemi 0:098463de4c5d 31 *******************************************************************************
group-onsemi 0:098463de4c5d 32 */
group-onsemi 0:098463de4c5d 33
group-onsemi 0:098463de4c5d 34 #include "mbed_assert.h"
group-onsemi 0:098463de4c5d 35 #include "gpio_api.h"
group-onsemi 0:098463de4c5d 36 #include "pinmap.h"
group-onsemi 0:098463de4c5d 37 #include "gpio_regs.h"
group-onsemi 0:098463de4c5d 38 #include "clkman_regs.h"
group-onsemi 0:098463de4c5d 39
group-onsemi 0:098463de4c5d 40 uint32_t gpio_set(PinName name)
group-onsemi 0:098463de4c5d 41 {
group-onsemi 0:098463de4c5d 42 MBED_ASSERT(name != (PinName)NC);
group-onsemi 0:098463de4c5d 43 pin_function(name, 0);
group-onsemi 0:098463de4c5d 44 return 1 << PINNAME_TO_PIN(name);
group-onsemi 0:098463de4c5d 45 }
group-onsemi 0:098463de4c5d 46
group-onsemi 0:098463de4c5d 47 void gpio_init(gpio_t *obj, PinName name)
group-onsemi 0:098463de4c5d 48 {
group-onsemi 0:098463de4c5d 49 obj->name = name;
group-onsemi 0:098463de4c5d 50 if (name == (PinName)NC) {
group-onsemi 0:098463de4c5d 51 return;
group-onsemi 0:098463de4c5d 52 }
group-onsemi 0:098463de4c5d 53
group-onsemi 0:098463de4c5d 54 unsigned int port = PINNAME_TO_PORT(name);
group-onsemi 0:098463de4c5d 55 unsigned int pin = PINNAME_TO_PIN(name);
group-onsemi 0:098463de4c5d 56
group-onsemi 0:098463de4c5d 57 obj->reg_out = (uint32_t*)BITBAND(&MXC_GPIO->out_val[port], pin);
group-onsemi 0:098463de4c5d 58 obj->reg_in = (uint32_t*)BITBAND(&MXC_GPIO->in_val[port], pin);
group-onsemi 0:098463de4c5d 59
group-onsemi 0:098463de4c5d 60 /* Ensure that the GPIO clock is enabled */
group-onsemi 0:098463de4c5d 61 if (MXC_CLKMAN->clk_ctrl_1_gpio == MXC_E_CLKMAN_CLK_SCALE_DISABLED) {
group-onsemi 0:098463de4c5d 62 MXC_CLKMAN->clk_ctrl_1_gpio = MXC_E_CLKMAN_CLK_SCALE_ENABLED;
group-onsemi 0:098463de4c5d 63 }
group-onsemi 0:098463de4c5d 64 }
group-onsemi 0:098463de4c5d 65
group-onsemi 0:098463de4c5d 66 void gpio_mode(gpio_t *obj, PinMode mode)
group-onsemi 0:098463de4c5d 67 {
group-onsemi 0:098463de4c5d 68 pin_mode(obj->name, mode);
group-onsemi 0:098463de4c5d 69 }
group-onsemi 0:098463de4c5d 70
group-onsemi 0:098463de4c5d 71 void pin_dir(PinName name, PinDirection direction)
group-onsemi 0:098463de4c5d 72 {
group-onsemi 0:098463de4c5d 73 MBED_ASSERT(name != (PinName)NC);
group-onsemi 0:098463de4c5d 74
group-onsemi 0:098463de4c5d 75 unsigned int port = PINNAME_TO_PORT(name);
group-onsemi 0:098463de4c5d 76 unsigned int pin = PINNAME_TO_PIN(name);
group-onsemi 0:098463de4c5d 77
group-onsemi 0:098463de4c5d 78 /* Set function */
group-onsemi 0:098463de4c5d 79 MXC_GPIO->func_sel[port] &= ~(0xF << (4 * pin));
group-onsemi 0:098463de4c5d 80
group-onsemi 0:098463de4c5d 81 /* Normal input is always enabled */
group-onsemi 0:098463de4c5d 82 MXC_GPIO->in_mode[port] &= ~(0xF << (4 * pin));
group-onsemi 0:098463de4c5d 83
group-onsemi 0:098463de4c5d 84 /* Set requested output mode */
group-onsemi 0:098463de4c5d 85 uint32_t out_mode = MXC_GPIO->out_mode[port];
group-onsemi 0:098463de4c5d 86 out_mode &= ~(0xF << (4 * pin));
group-onsemi 0:098463de4c5d 87 out_mode |= (direction << (4 * pin));
group-onsemi 0:098463de4c5d 88 MXC_GPIO->out_mode[port] = out_mode;
group-onsemi 0:098463de4c5d 89 }
group-onsemi 0:098463de4c5d 90
group-onsemi 0:098463de4c5d 91 void gpio_dir(gpio_t *obj, PinDirection direction)
group-onsemi 0:098463de4c5d 92 {
group-onsemi 0:098463de4c5d 93 pin_dir(obj->name, direction);
group-onsemi 0:098463de4c5d 94 }