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

targets/TARGET_Maxim/TARGET_MAX32625/pinmap.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?

UserRevisionLine numberNew contents of line
group-onsemi 0:098463de4c5d 1 /*******************************************************************************
group-onsemi 0:098463de4c5d 2 * Copyright (c) 2016 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 "pinmap.h"
group-onsemi 0:098463de4c5d 36 #include "objects.h"
group-onsemi 0:098463de4c5d 37 #include "gpio_regs.h"
group-onsemi 0:098463de4c5d 38
group-onsemi 0:098463de4c5d 39 void pin_function(PinName name, int function)
group-onsemi 0:098463de4c5d 40 {
group-onsemi 0:098463de4c5d 41 MBED_ASSERT(name != (PinName)NC);
group-onsemi 0:098463de4c5d 42
group-onsemi 0:098463de4c5d 43 if ((function >= 0) && (function <= 0xF)) {
group-onsemi 0:098463de4c5d 44 unsigned int port = PINNAME_TO_PORT(name);
group-onsemi 0:098463de4c5d 45 unsigned int pin = PINNAME_TO_PIN(name);
group-onsemi 0:098463de4c5d 46 uint32_t temp = MXC_GPIO->func_sel[port] & ~(0xF << (pin*4));
group-onsemi 0:098463de4c5d 47 MXC_GPIO->func_sel[port] = temp | ((uint32_t)function << (pin*4));
group-onsemi 0:098463de4c5d 48 } else {
group-onsemi 0:098463de4c5d 49 /* Assume this is a pointer to a pin function object */
group-onsemi 0:098463de4c5d 50 pin_function_t *obj = (pin_function_t*)function;
group-onsemi 0:098463de4c5d 51
group-onsemi 0:098463de4c5d 52 if ((*obj->reg_ack & obj->ack_mask) != obj->req_val) {
group-onsemi 0:098463de4c5d 53 /* Request pin mapping */
group-onsemi 0:098463de4c5d 54 *obj->reg_req |= obj->req_val;
group-onsemi 0:098463de4c5d 55
group-onsemi 0:098463de4c5d 56 /* Check for acknowledgment */
group-onsemi 0:098463de4c5d 57 MBED_ASSERT((*obj->reg_ack & obj->ack_mask) == obj->req_val);
group-onsemi 0:098463de4c5d 58 }
group-onsemi 0:098463de4c5d 59 }
group-onsemi 0:098463de4c5d 60 }
group-onsemi 0:098463de4c5d 61
group-onsemi 0:098463de4c5d 62 void pin_mode(PinName name, PinMode mode)
group-onsemi 0:098463de4c5d 63 {
group-onsemi 0:098463de4c5d 64 MBED_ASSERT(name != (PinName)NC);
group-onsemi 0:098463de4c5d 65 unsigned int port = PINNAME_TO_PORT(name);
group-onsemi 0:098463de4c5d 66 unsigned int pin = PINNAME_TO_PIN(name);
group-onsemi 0:098463de4c5d 67
group-onsemi 0:098463de4c5d 68 /* Must set mode while retaining direction */
group-onsemi 0:098463de4c5d 69
group-onsemi 0:098463de4c5d 70 /* Get the current direction */
group-onsemi 0:098463de4c5d 71 uint32_t curr_mode = (MXC_GPIO->out_mode[port] >> (pin * 4)) & 0xF;
group-onsemi 0:098463de4c5d 72 PinDirection direction = PIN_OUTPUT;
group-onsemi 0:098463de4c5d 73 if ((curr_mode == MXC_V_GPIO_OUT_MODE_HIGH_Z_WEAK_PULLUP) ||
group-onsemi 0:098463de4c5d 74 (curr_mode == MXC_V_GPIO_OUT_MODE_HIGH_Z_WEAK_PULLDOWN) ||
group-onsemi 0:098463de4c5d 75 (curr_mode == MXC_V_GPIO_OUT_MODE_NORMAL_HIGH_Z)) {
group-onsemi 0:098463de4c5d 76 direction = PIN_INPUT;
group-onsemi 0:098463de4c5d 77 }
group-onsemi 0:098463de4c5d 78
group-onsemi 0:098463de4c5d 79 /* Set mode based on current direction */
group-onsemi 0:098463de4c5d 80 pin_dir_mode(name, direction, mode);
group-onsemi 0:098463de4c5d 81 }
group-onsemi 0:098463de4c5d 82