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/port_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 "port_api.h"
mbed_official 507:d4fc7603a669 35 #include "pinmap.h"
mbed_official 507:d4fc7603a669 36 #include "gpio_api.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 PinName port_pin(PortName port, int pin_n)
mbed_official 507:d4fc7603a669 41 {
mbed_official 507:d4fc7603a669 42 return (PinName)((port << PORT_SHIFT) | pin_n);
mbed_official 507:d4fc7603a669 43 }
mbed_official 507:d4fc7603a669 44
mbed_official 507:d4fc7603a669 45 void port_init(port_t *obj, PortName port, int mask, PinDirection dir)
mbed_official 507:d4fc7603a669 46 {
mbed_official 507:d4fc7603a669 47 obj->port = port;
mbed_official 507:d4fc7603a669 48 obj->mask = mask;
mbed_official 507:d4fc7603a669 49 obj->reg_out = &MXC_GPIO->out_val[port];
mbed_official 507:d4fc7603a669 50 obj->reg_in = &MXC_GPIO->in_val[port];
mbed_official 507:d4fc7603a669 51
mbed_official 507:d4fc7603a669 52 /* Ensure that the GPIO clock is enabled */
mbed_official 507:d4fc7603a669 53 if (MXC_CLKMAN->clk_ctrl_1_gpio == MXC_E_CLKMAN_CLK_SCALE_DISABLED) {
mbed_official 507:d4fc7603a669 54 MXC_CLKMAN->clk_ctrl_1_gpio = MXC_E_CLKMAN_CLK_SCALE_ENABLED;
mbed_official 507:d4fc7603a669 55 }
mbed_official 507:d4fc7603a669 56
mbed_official 507:d4fc7603a669 57 uint32_t i;
mbed_official 507:d4fc7603a669 58 // The function is set per pin: reuse gpio logic
mbed_official 507:d4fc7603a669 59 for (i=0; i<32; i++) {
mbed_official 507:d4fc7603a669 60 if (obj->mask & (1<<i)) {
mbed_official 507:d4fc7603a669 61 gpio_set(port_pin(obj->port, i));
mbed_official 507:d4fc7603a669 62 pin_dir(port_pin(obj->port, i), dir);
mbed_official 507:d4fc7603a669 63 }
mbed_official 507:d4fc7603a669 64 }
mbed_official 507:d4fc7603a669 65 }
mbed_official 507:d4fc7603a669 66
mbed_official 507:d4fc7603a669 67 void port_mode(port_t *obj, PinMode mode)
mbed_official 507:d4fc7603a669 68 {
mbed_official 507:d4fc7603a669 69 uint32_t i;
mbed_official 507:d4fc7603a669 70 // The mode is set per pin: reuse pinmap logic
mbed_official 507:d4fc7603a669 71 for (i=0; i<32; i++) {
mbed_official 507:d4fc7603a669 72 if (obj->mask & (1<<i)) {
mbed_official 507:d4fc7603a669 73 pin_mode(port_pin(obj->port, i), mode);
mbed_official 507:d4fc7603a669 74 }
mbed_official 507:d4fc7603a669 75 }
mbed_official 507:d4fc7603a669 76 }
mbed_official 507:d4fc7603a669 77
mbed_official 507:d4fc7603a669 78 void port_dir(port_t *obj, PinDirection dir)
mbed_official 507:d4fc7603a669 79 {
mbed_official 507:d4fc7603a669 80 uint32_t i;
mbed_official 507:d4fc7603a669 81 // The mode is set per pin: reuse gpio logic
mbed_official 507:d4fc7603a669 82 for (i=0; i<32; i++) {
mbed_official 507:d4fc7603a669 83 if (obj->mask & (1<<i)) {
mbed_official 507:d4fc7603a669 84 pin_dir(port_pin(obj->port, i), dir);
mbed_official 507:d4fc7603a669 85 }
mbed_official 507:d4fc7603a669 86 }
mbed_official 507:d4fc7603a669 87 }
mbed_official 507:d4fc7603a669 88
mbed_official 507:d4fc7603a669 89 void port_write(port_t *obj, int value)
mbed_official 507:d4fc7603a669 90 {
mbed_official 507:d4fc7603a669 91 *obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask);
mbed_official 507:d4fc7603a669 92 }
mbed_official 507:d4fc7603a669 93
mbed_official 507:d4fc7603a669 94 int port_read(port_t *obj)
mbed_official 507:d4fc7603a669 95 {
mbed_official 507:d4fc7603a669 96 return (*obj->reg_in & obj->mask);
mbed_official 507:d4fc7603a669 97 }