mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/TARGET_WIZNET/TARGET_W7500x/port_api.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
149:156823d33999 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* mbed Microcontroller Library
<> 144:ef7eb2e8f9f7 2 *******************************************************************************
<> 144:ef7eb2e8f9f7 3 * Copyright (c) 2015 WIZnet Co.,Ltd. All rights reserved.
<> 144:ef7eb2e8f9f7 4 * All rights reserved.
<> 144:ef7eb2e8f9f7 5 *
<> 144:ef7eb2e8f9f7 6 * Redistribution and use in source and binary forms, with or without
<> 144:ef7eb2e8f9f7 7 * modification, are permitted provided that the following conditions are met:
<> 144:ef7eb2e8f9f7 8 *
<> 144:ef7eb2e8f9f7 9 * 1. Redistributions of source code must retain the above copyright notice,
<> 144:ef7eb2e8f9f7 10 * this list of conditions and the following disclaimer.
<> 144:ef7eb2e8f9f7 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
<> 144:ef7eb2e8f9f7 12 * this list of conditions and the following disclaimer in the documentation
<> 144:ef7eb2e8f9f7 13 * and/or other materials provided with the distribution.
<> 144:ef7eb2e8f9f7 14 * 3. Neither the name of ARM Limited nor the names of its contributors
<> 144:ef7eb2e8f9f7 15 * may be used to endorse or promote products derived from this software
<> 144:ef7eb2e8f9f7 16 * without specific prior written permission.
<> 144:ef7eb2e8f9f7 17 *
<> 144:ef7eb2e8f9f7 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
<> 144:ef7eb2e8f9f7 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
<> 144:ef7eb2e8f9f7 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 144:ef7eb2e8f9f7 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
<> 144:ef7eb2e8f9f7 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
<> 144:ef7eb2e8f9f7 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
<> 144:ef7eb2e8f9f7 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
<> 144:ef7eb2e8f9f7 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
<> 144:ef7eb2e8f9f7 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
<> 144:ef7eb2e8f9f7 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 144:ef7eb2e8f9f7 28 *******************************************************************************
<> 144:ef7eb2e8f9f7 29 */
<> 144:ef7eb2e8f9f7 30
<> 144:ef7eb2e8f9f7 31 #include "port_api.h"
<> 144:ef7eb2e8f9f7 32 #include "pinmap.h"
<> 144:ef7eb2e8f9f7 33 #include "gpio_api.h"
<> 144:ef7eb2e8f9f7 34 #include "mbed_error.h"
<> 144:ef7eb2e8f9f7 35
<> 144:ef7eb2e8f9f7 36 #if DEVICE_PORTIN || DEVICE_PORTOUT
<> 144:ef7eb2e8f9f7 37
<> 144:ef7eb2e8f9f7 38 extern uint32_t Get_GPIO_BaseAddress(uint32_t port_idx);
<> 144:ef7eb2e8f9f7 39
<> 144:ef7eb2e8f9f7 40 //port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...)
<> 144:ef7eb2e8f9f7 41 PinName port_pin(PortName port, int pin_n)
<> 144:ef7eb2e8f9f7 42 {
<> 144:ef7eb2e8f9f7 43 int af_num = 0;
<> 144:ef7eb2e8f9f7 44
<> 144:ef7eb2e8f9f7 45 if( (port == 2) && ((pin_n == 0) || (pin_n == 1) || (pin_n == 4) || (pin_n == 8) || (pin_n == 9)) )
<> 144:ef7eb2e8f9f7 46 {
<> 144:ef7eb2e8f9f7 47 af_num = 1;
<> 144:ef7eb2e8f9f7 48 }
<> 144:ef7eb2e8f9f7 49
<> 144:ef7eb2e8f9f7 50
<> 144:ef7eb2e8f9f7 51 return (PinName)(pin_n + (port << 4) + (af_num << 8));
<> 144:ef7eb2e8f9f7 52 }
<> 144:ef7eb2e8f9f7 53
<> 144:ef7eb2e8f9f7 54 void port_init(port_t *obj, PortName port, int mask, PinDirection dir)
<> 144:ef7eb2e8f9f7 55 {
<> 144:ef7eb2e8f9f7 56 uint32_t port_num = (uint32_t)port;
<> 144:ef7eb2e8f9f7 57
<> 144:ef7eb2e8f9f7 58 // Enable GPIO clock
<> 144:ef7eb2e8f9f7 59 GPIO_TypeDef *gpio = (GPIO_TypeDef *)Get_GPIO_BaseAddress(port_num);
<> 144:ef7eb2e8f9f7 60
<> 144:ef7eb2e8f9f7 61
<> 144:ef7eb2e8f9f7 62 // Fill PORT object structure for future use
<> 144:ef7eb2e8f9f7 63 obj->port = port;
<> 144:ef7eb2e8f9f7 64 obj->mask = mask;
<> 144:ef7eb2e8f9f7 65 obj->direction = dir;
<> 144:ef7eb2e8f9f7 66 obj->reg_in = &gpio->DATA;
<> 144:ef7eb2e8f9f7 67 obj->reg_out = &gpio->DATAOUT;
<> 144:ef7eb2e8f9f7 68
<> 144:ef7eb2e8f9f7 69 port_dir(obj, dir);
<> 144:ef7eb2e8f9f7 70 }
<> 144:ef7eb2e8f9f7 71
<> 144:ef7eb2e8f9f7 72 void port_dir(port_t *obj, PinDirection dir)
<> 144:ef7eb2e8f9f7 73 {
<> 144:ef7eb2e8f9f7 74 uint32_t i;
<> 144:ef7eb2e8f9f7 75 obj->direction = dir;
<> 144:ef7eb2e8f9f7 76 for (i = 0; i < 16; i++) { // Process all pins
<> 144:ef7eb2e8f9f7 77 if (obj->mask & (1 << i)) { // If the pin is used
<> 144:ef7eb2e8f9f7 78 if (dir == PIN_OUTPUT) {
<> 144:ef7eb2e8f9f7 79 pin_function(port_pin(obj->port, i), WIZ_PIN_DATA(WIZ_MODE_OUTPUT, WIZ_GPIO_NOPULL, 0));
<> 144:ef7eb2e8f9f7 80 } else { // PIN_INPUT
<> 144:ef7eb2e8f9f7 81 pin_function(port_pin(obj->port, i), WIZ_PIN_DATA(WIZ_MODE_INPUT, WIZ_GPIO_NOPULL, 0));
<> 144:ef7eb2e8f9f7 82 }
<> 144:ef7eb2e8f9f7 83 }
<> 144:ef7eb2e8f9f7 84 }
<> 144:ef7eb2e8f9f7 85 }
<> 144:ef7eb2e8f9f7 86
<> 144:ef7eb2e8f9f7 87 void port_mode(port_t *obj, PinMode mode)
<> 144:ef7eb2e8f9f7 88 {
<> 144:ef7eb2e8f9f7 89 uint32_t i;
<> 144:ef7eb2e8f9f7 90 for (i = 0; i < 16; i++) { // Process all pins
<> 144:ef7eb2e8f9f7 91 if (obj->mask & (1 << i)) { // If the pin is used
<> 144:ef7eb2e8f9f7 92 pin_mode(port_pin(obj->port, i), mode);
<> 144:ef7eb2e8f9f7 93 }
<> 144:ef7eb2e8f9f7 94 }
<> 144:ef7eb2e8f9f7 95 }
<> 144:ef7eb2e8f9f7 96
<> 144:ef7eb2e8f9f7 97 void port_write(port_t *obj, int value)
<> 144:ef7eb2e8f9f7 98 {
<> 144:ef7eb2e8f9f7 99 *obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask);
<> 144:ef7eb2e8f9f7 100 }
<> 144:ef7eb2e8f9f7 101
<> 144:ef7eb2e8f9f7 102 int port_read(port_t *obj)
<> 144:ef7eb2e8f9f7 103 {
<> 144:ef7eb2e8f9f7 104 if (obj->direction == PIN_OUTPUT) {
<> 144:ef7eb2e8f9f7 105 return (*obj->reg_out & obj->mask);
<> 144:ef7eb2e8f9f7 106 } else { // PIN_INPUT
<> 144:ef7eb2e8f9f7 107 return (*obj->reg_in & obj->mask);
<> 144:ef7eb2e8f9f7 108 }
<> 144:ef7eb2e8f9f7 109 }
<> 144:ef7eb2e8f9f7 110
<> 144:ef7eb2e8f9f7 111 #endif