Paul Paterson / mbed-src-CanNucleoF0

mbed library sources, include can_api for nucleo-f091rc

Dependents:   CanNucleoF0_example

Fork of mbed-src by mbed official

targets/hal/TARGET_Maxim/TARGET_MAX32610/gpio_api.c@645:13c87cbecd54, 2016-01-07 (annotated)

Committer:
ptpaterson
Date:
Thu Jan 07 05:49:05 2016 +0000
Revision:
645:13c87cbecd54
Parent:
507:d4fc7603a669 
corrected freeze on CAN_RECEIVE_IT

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 507:d4fc7603a669 1 /*******************************************************************************
mbed_official 507:d4fc7603a669 2 * Copyright (C) 2015 Maxim Integrated Products, Inc., All Rights Reserved.
mbed_official 507:d4fc7603a669 3 *
mbed_official 507:d4fc7603a669 4 * Permission is hereby granted, free of charge, to any person obtaining a
mbed_official 507:d4fc7603a669 5 * copy of this software and associated documentation files (the "Software"),
mbed_official 507:d4fc7603a669 6 * to deal in the Software without restriction, including without limitation
mbed_official 507:d4fc7603a669 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
mbed_official 507:d4fc7603a669 8 * and/or sell copies of the Software, and to permit persons to whom the
mbed_official 507:d4fc7603a669 9 * Software is furnished to do so, subject to the following conditions:
mbed_official 507:d4fc7603a669 10 *
mbed_official 507:d4fc7603a669 11 * The above copyright notice and this permission notice shall be included
mbed_official 507:d4fc7603a669 12 * in all copies or substantial portions of the Software.
mbed_official 507:d4fc7603a669 13 *
mbed_official 507:d4fc7603a669 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
mbed_official 507:d4fc7603a669 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
mbed_official 507:d4fc7603a669 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
mbed_official 507:d4fc7603a669 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
mbed_official 507:d4fc7603a669 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
mbed_official 507:d4fc7603a669 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
mbed_official 507:d4fc7603a669 20 * OTHER DEALINGS IN THE SOFTWARE.
mbed_official 507:d4fc7603a669 21 *
mbed_official 507:d4fc7603a669 22 * Except as contained in this notice, the name of Maxim Integrated
mbed_official 507:d4fc7603a669 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
mbed_official 507:d4fc7603a669 24 * Products, Inc. Branding Policy.
mbed_official 507:d4fc7603a669 25 *
mbed_official 507:d4fc7603a669 26 * The mere transfer of this software does not imply any licenses
mbed_official 507:d4fc7603a669 27 * of trade secrets, proprietary technology, copyrights, patents,
mbed_official 507:d4fc7603a669 28 * trademarks, maskwork rights, or any other form of intellectual
mbed_official 507:d4fc7603a669 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
mbed_official 507:d4fc7603a669 30 * ownership rights.
mbed_official 507:d4fc7603a669 31 *******************************************************************************
mbed_official 507:d4fc7603a669 32 */
mbed_official 507:d4fc7603a669 33
mbed_official 507:d4fc7603a669 34 #include "mbed_assert.h"
mbed_official 507:d4fc7603a669 35 #include "gpio_api.h"
mbed_official 507:d4fc7603a669 36 #include "pinmap.h"
mbed_official 507:d4fc7603a669 37 #include "gpio_regs.h"
mbed_official 507:d4fc7603a669 38 #include "clkman_regs.h"
mbed_official 507:d4fc7603a669 39
mbed_official 507:d4fc7603a669 40 uint32_t gpio_set(PinName name)
mbed_official 507:d4fc7603a669 41 {
mbed_official 507:d4fc7603a669 42 MBED_ASSERT(name != (PinName)NC);
mbed_official 507:d4fc7603a669 43 pin_function(name, 0);
mbed_official 507:d4fc7603a669 44 return 1 << PINNAME_TO_PIN(name);
mbed_official 507:d4fc7603a669 45 }
mbed_official 507:d4fc7603a669 46
mbed_official 507:d4fc7603a669 47 void gpio_init(gpio_t *obj, PinName name)
mbed_official 507:d4fc7603a669 48 {
mbed_official 507:d4fc7603a669 49 obj->name = name;
mbed_official 507:d4fc7603a669 50 if (name == (PinName)NC) {
mbed_official 507:d4fc7603a669 51 return;
mbed_official 507:d4fc7603a669 52 }
mbed_official 507:d4fc7603a669 53
mbed_official 507:d4fc7603a669 54 unsigned int port = PINNAME_TO_PORT(name);
mbed_official 507:d4fc7603a669 55 unsigned int pin = PINNAME_TO_PIN(name);
mbed_official 507:d4fc7603a669 56
mbed_official 507:d4fc7603a669 57 obj->reg_out = (uint32_t*)BITBAND(&MXC_GPIO->out_val[port], pin);
mbed_official 507:d4fc7603a669 58 obj->reg_in = (uint32_t*)BITBAND(&MXC_GPIO->in_val[port], pin);
mbed_official 507:d4fc7603a669 59
mbed_official 507:d4fc7603a669 60 /* Ensure that the GPIO clock is enabled */
mbed_official 507:d4fc7603a669 61 if (MXC_CLKMAN->clk_ctrl_1_gpio == MXC_E_CLKMAN_CLK_SCALE_DISABLED) {
mbed_official 507:d4fc7603a669 62 MXC_CLKMAN->clk_ctrl_1_gpio = MXC_E_CLKMAN_CLK_SCALE_ENABLED;
mbed_official 507:d4fc7603a669 63 }
mbed_official 507:d4fc7603a669 64 }
mbed_official 507:d4fc7603a669 65
mbed_official 507:d4fc7603a669 66 void gpio_mode(gpio_t *obj, PinMode mode)
mbed_official 507:d4fc7603a669 67 {
mbed_official 507:d4fc7603a669 68 pin_mode(obj->name, mode);
mbed_official 507:d4fc7603a669 69 }
mbed_official 507:d4fc7603a669 70
mbed_official 507:d4fc7603a669 71 void pin_dir(PinName name, PinDirection direction)
mbed_official 507:d4fc7603a669 72 {
mbed_official 507:d4fc7603a669 73 MBED_ASSERT(name != (PinName)NC);
mbed_official 507:d4fc7603a669 74
mbed_official 507:d4fc7603a669 75 unsigned int port = PINNAME_TO_PORT(name);
mbed_official 507:d4fc7603a669 76 unsigned int pin = PINNAME_TO_PIN(name);
mbed_official 507:d4fc7603a669 77
mbed_official 507:d4fc7603a669 78 /* Set function */
mbed_official 507:d4fc7603a669 79 MXC_GPIO->func_sel[port] &= ~(0xF << (4 * pin));
mbed_official 507:d4fc7603a669 80
mbed_official 507:d4fc7603a669 81 /* Normal input is always enabled */
mbed_official 507:d4fc7603a669 82 MXC_GPIO->in_mode[port] &= ~(0xF << (4 * pin));
mbed_official 507:d4fc7603a669 83
mbed_official 507:d4fc7603a669 84 /* Set requested output mode */
mbed_official 507:d4fc7603a669 85 uint32_t out_mode = MXC_GPIO->out_mode[port];
mbed_official 507:d4fc7603a669 86 out_mode &= ~(0xF << (4 * pin));
mbed_official 507:d4fc7603a669 87 out_mode |= (direction << (4 * pin));
mbed_official 507:d4fc7603a669 88 MXC_GPIO->out_mode[port] = out_mode;
mbed_official 507:d4fc7603a669 89 }
mbed_official 507:d4fc7603a669 90
mbed_official 507:d4fc7603a669 91 void gpio_dir(gpio_t *obj, PinDirection direction)
mbed_official 507:d4fc7603a669 92 {
mbed_official 507:d4fc7603a669 93 pin_dir(obj->name, direction);
mbed_official 507:d4fc7603a669 94 }