mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

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

targets/TARGET_TOSHIBA/TARGET_TMPM46B/pinmap.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
184:08ed48f1de7f 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 184:08ed48f1de7f 1 /* mbed Microcontroller Library
AnnaBridge 184:08ed48f1de7f 2 * (C)Copyright TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION 2017 All rights reserved
AnnaBridge 184:08ed48f1de7f 3 *
AnnaBridge 184:08ed48f1de7f 4 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 184:08ed48f1de7f 5 * you may not use this file except in compliance with the License.
AnnaBridge 184:08ed48f1de7f 6 * You may obtain a copy of the License at
AnnaBridge 184:08ed48f1de7f 7 *
AnnaBridge 184:08ed48f1de7f 8 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 184:08ed48f1de7f 9 *
AnnaBridge 184:08ed48f1de7f 10 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 184:08ed48f1de7f 11 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 184:08ed48f1de7f 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 184:08ed48f1de7f 13 * See the License for the specific language governing permissions and
AnnaBridge 184:08ed48f1de7f 14 * limitations under the License.
AnnaBridge 184:08ed48f1de7f 15 */
AnnaBridge 184:08ed48f1de7f 16 #include "mbed_assert.h"
AnnaBridge 184:08ed48f1de7f 17 #include "pinmap.h"
AnnaBridge 184:08ed48f1de7f 18 #include "tmpm46b_gpio.h"
AnnaBridge 184:08ed48f1de7f 19
AnnaBridge 184:08ed48f1de7f 20 #define PIN_FUNC_MAX 6
AnnaBridge 184:08ed48f1de7f 21
AnnaBridge 184:08ed48f1de7f 22 void pin_function(PinName pin, int function)
AnnaBridge 184:08ed48f1de7f 23 {
AnnaBridge 184:08ed48f1de7f 24 uint32_t port = 0;
AnnaBridge 184:08ed48f1de7f 25 uint8_t bit = 0;
AnnaBridge 184:08ed48f1de7f 26 uint8_t i = 0;
AnnaBridge 184:08ed48f1de7f 27 uint8_t func = 0;
AnnaBridge 184:08ed48f1de7f 28 uint8_t dir = 0;
AnnaBridge 184:08ed48f1de7f 29
AnnaBridge 184:08ed48f1de7f 30 // Assert that pin is valid
AnnaBridge 184:08ed48f1de7f 31 MBED_ASSERT(pin != NC);
AnnaBridge 184:08ed48f1de7f 32
AnnaBridge 184:08ed48f1de7f 33 // Calculate pin function and pin direction
AnnaBridge 184:08ed48f1de7f 34 func = PIN_FUNC(function);
AnnaBridge 184:08ed48f1de7f 35 dir = PIN_DIR(function);
AnnaBridge 184:08ed48f1de7f 36 // Calculate port and pin position
AnnaBridge 184:08ed48f1de7f 37 port = PIN_PORT(pin);
AnnaBridge 184:08ed48f1de7f 38 bit = PIN_POS(pin);
AnnaBridge 184:08ed48f1de7f 39 // Set function if function is in range
AnnaBridge 184:08ed48f1de7f 40 if (func <= PIN_FUNC_MAX) {
AnnaBridge 184:08ed48f1de7f 41 // Disable other functions
AnnaBridge 184:08ed48f1de7f 42 for (i = 0; i < PIN_FUNC_MAX; i++) {
AnnaBridge 184:08ed48f1de7f 43 if (i != (func - 1)) {
AnnaBridge 184:08ed48f1de7f 44 GPIO_DisableFuncReg((GPIO_Port)port, i, (1 << bit));
AnnaBridge 184:08ed48f1de7f 45 }
AnnaBridge 184:08ed48f1de7f 46 }
AnnaBridge 184:08ed48f1de7f 47 // Set pin function
AnnaBridge 184:08ed48f1de7f 48 if (func) {
AnnaBridge 184:08ed48f1de7f 49 GPIO_EnableFuncReg((GPIO_Port)port, (uint8_t)(func - 1), (1 << bit));
AnnaBridge 184:08ed48f1de7f 50 }
AnnaBridge 184:08ed48f1de7f 51 }
AnnaBridge 184:08ed48f1de7f 52
AnnaBridge 184:08ed48f1de7f 53 // Set direction if direction is in range
AnnaBridge 184:08ed48f1de7f 54 switch (dir) {
AnnaBridge 184:08ed48f1de7f 55 case PIN_INPUT:
AnnaBridge 184:08ed48f1de7f 56 GPIO_SetInputEnableReg((GPIO_Port)port, (1 << bit), ENABLE);
AnnaBridge 184:08ed48f1de7f 57 GPIO_SetOutputEnableReg((GPIO_Port)port, (1 << bit), DISABLE);
AnnaBridge 184:08ed48f1de7f 58 break;
AnnaBridge 184:08ed48f1de7f 59 case PIN_OUTPUT:
AnnaBridge 184:08ed48f1de7f 60 GPIO_SetOutputEnableReg((GPIO_Port)port, (1 << bit), ENABLE);
AnnaBridge 184:08ed48f1de7f 61 GPIO_SetInputEnableReg((GPIO_Port)port, (1 << bit), DISABLE);
AnnaBridge 184:08ed48f1de7f 62 break;
AnnaBridge 184:08ed48f1de7f 63 case PIN_INOUT:
AnnaBridge 184:08ed48f1de7f 64 GPIO_SetOutputEnableReg((GPIO_Port)port, (1 << bit), ENABLE);
AnnaBridge 184:08ed48f1de7f 65 GPIO_SetInputEnableReg((GPIO_Port)port, (1 << bit), ENABLE);
AnnaBridge 184:08ed48f1de7f 66 break;
AnnaBridge 184:08ed48f1de7f 67 default:
AnnaBridge 184:08ed48f1de7f 68 break;
AnnaBridge 184:08ed48f1de7f 69 }
AnnaBridge 184:08ed48f1de7f 70 }
AnnaBridge 184:08ed48f1de7f 71
AnnaBridge 184:08ed48f1de7f 72 void pin_mode(PinName pin, PinMode mode)
AnnaBridge 184:08ed48f1de7f 73 {
AnnaBridge 184:08ed48f1de7f 74 uint32_t port = 0;
AnnaBridge 184:08ed48f1de7f 75 uint8_t bit = 0;
AnnaBridge 184:08ed48f1de7f 76
AnnaBridge 184:08ed48f1de7f 77 // Assert that pin is valid
AnnaBridge 184:08ed48f1de7f 78 MBED_ASSERT(pin != NC);
AnnaBridge 184:08ed48f1de7f 79
AnnaBridge 184:08ed48f1de7f 80 // Check if function is in range
AnnaBridge 184:08ed48f1de7f 81 if (mode > OpenDrain) {
AnnaBridge 184:08ed48f1de7f 82 return;
AnnaBridge 184:08ed48f1de7f 83 }
AnnaBridge 184:08ed48f1de7f 84 // Calculate port and pin position
AnnaBridge 184:08ed48f1de7f 85 port = PIN_PORT(pin);
AnnaBridge 184:08ed48f1de7f 86 bit = PIN_POS(pin);
AnnaBridge 184:08ed48f1de7f 87 // Set pin mode
AnnaBridge 184:08ed48f1de7f 88 switch (mode) {
AnnaBridge 184:08ed48f1de7f 89 case PullNone:
AnnaBridge 184:08ed48f1de7f 90 GPIO_SetPullUp((GPIO_Port)port, (1 << bit), DISABLE);
AnnaBridge 184:08ed48f1de7f 91 GPIO_SetPullDown((GPIO_Port)port, (1 << bit), DISABLE);
AnnaBridge 184:08ed48f1de7f 92 GPIO_SetOpenDrain((GPIO_Port)port, (1 << bit), DISABLE);
AnnaBridge 184:08ed48f1de7f 93 break;
AnnaBridge 184:08ed48f1de7f 94 case PullUp:
AnnaBridge 184:08ed48f1de7f 95 GPIO_SetPullUp((GPIO_Port)port, (1 << bit), ENABLE);
AnnaBridge 184:08ed48f1de7f 96 break;
AnnaBridge 184:08ed48f1de7f 97 case PullDown:
AnnaBridge 184:08ed48f1de7f 98 GPIO_SetPullDown((GPIO_Port)port, (1 << bit), ENABLE);
AnnaBridge 184:08ed48f1de7f 99 break;
AnnaBridge 184:08ed48f1de7f 100 case OpenDrain:
AnnaBridge 184:08ed48f1de7f 101 GPIO_SetOpenDrain((GPIO_Port)port, (1 << bit), ENABLE);
AnnaBridge 184:08ed48f1de7f 102 break;
AnnaBridge 184:08ed48f1de7f 103 default:
AnnaBridge 184:08ed48f1de7f 104 break;
AnnaBridge 184:08ed48f1de7f 105 }
AnnaBridge 184:08ed48f1de7f 106 }