MacroRat / MouseCode

Mouse code for the MacroRat

Dependencies:   ITG3200 QEI

mbed-dev/targets/TARGET_ublox/TARGET_HI2110/port_api.c@18:6a4db94011d3, 2017-05-14 (annotated)

Committer:
sahilmgandhi
Date:
Sun May 14 23:18:57 2017 +0000
Revision:
18:6a4db94011d3
Publishing again

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sahilmgandhi 18:6a4db94011d3 1 /* mbed Microcontroller Library
sahilmgandhi 18:6a4db94011d3 2 * Copyright (c) 2016 u-blox
sahilmgandhi 18:6a4db94011d3 3 *
sahilmgandhi 18:6a4db94011d3 4 * Licensed under the Apache License, Version 2.0 (the "License");
sahilmgandhi 18:6a4db94011d3 5 * you may not use this file except in compliance with the License.
sahilmgandhi 18:6a4db94011d3 6 * You may obtain a copy of the License at
sahilmgandhi 18:6a4db94011d3 7 *
sahilmgandhi 18:6a4db94011d3 8 * http://www.apache.org/licenses/LICENSE-2.0
sahilmgandhi 18:6a4db94011d3 9 *
sahilmgandhi 18:6a4db94011d3 10 * Unless required by applicable law or agreed to in writing, software
sahilmgandhi 18:6a4db94011d3 11 * distributed under the License is distributed on an "AS IS" BASIS,
sahilmgandhi 18:6a4db94011d3 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
sahilmgandhi 18:6a4db94011d3 13 * See the License for the specific language governing permissions and
sahilmgandhi 18:6a4db94011d3 14 * limitations under the License.
sahilmgandhi 18:6a4db94011d3 15 */
sahilmgandhi 18:6a4db94011d3 16
sahilmgandhi 18:6a4db94011d3 17 /* TODO: this needs testing */
sahilmgandhi 18:6a4db94011d3 18
sahilmgandhi 18:6a4db94011d3 19 #include "port_api.h"
sahilmgandhi 18:6a4db94011d3 20 #include "pinmap.h"
sahilmgandhi 18:6a4db94011d3 21 #include "gpio_api.h"
sahilmgandhi 18:6a4db94011d3 22
sahilmgandhi 18:6a4db94011d3 23 PinName port_pin(PortName port, int pin_n)
sahilmgandhi 18:6a4db94011d3 24 {
sahilmgandhi 18:6a4db94011d3 25 MBED_ASSERT (port < PortMaxNumber);
sahilmgandhi 18:6a4db94011d3 26
sahilmgandhi 18:6a4db94011d3 27 (void) port;
sahilmgandhi 18:6a4db94011d3 28 return (PinName)(pin_n);
sahilmgandhi 18:6a4db94011d3 29 }
sahilmgandhi 18:6a4db94011d3 30
sahilmgandhi 18:6a4db94011d3 31 void port_init(port_t *obj, PortName port, int mask, PinDirection dir)
sahilmgandhi 18:6a4db94011d3 32 {
sahilmgandhi 18:6a4db94011d3 33 MBED_ASSERT (port < PortMaxNumber);
sahilmgandhi 18:6a4db94011d3 34
sahilmgandhi 18:6a4db94011d3 35 obj->port = port;
sahilmgandhi 18:6a4db94011d3 36 obj->mask = mask;
sahilmgandhi 18:6a4db94011d3 37
sahilmgandhi 18:6a4db94011d3 38 obj->reg_dir = &GPIO_DIR;
sahilmgandhi 18:6a4db94011d3 39 obj->reg_out = &GPIO_OUT;
sahilmgandhi 18:6a4db94011d3 40 obj->reg_val = &GPIO_VALUE;
sahilmgandhi 18:6a4db94011d3 41 obj->reg_drv = &GPIO_DRIVE;
sahilmgandhi 18:6a4db94011d3 42
sahilmgandhi 18:6a4db94011d3 43 /* Claim the pins */
sahilmgandhi 18:6a4db94011d3 44 for (uint8_t x = 0; x < NUM_PINS; x++) {
sahilmgandhi 18:6a4db94011d3 45 if (mask & (1ul << x)) {
sahilmgandhi 18:6a4db94011d3 46 pin_function((PinName) x, PIN_FUNCTION_GPIO);
sahilmgandhi 18:6a4db94011d3 47 }
sahilmgandhi 18:6a4db94011d3 48 }
sahilmgandhi 18:6a4db94011d3 49
sahilmgandhi 18:6a4db94011d3 50 /* Set up the pins */
sahilmgandhi 18:6a4db94011d3 51 port_dir(obj, dir);
sahilmgandhi 18:6a4db94011d3 52 }
sahilmgandhi 18:6a4db94011d3 53
sahilmgandhi 18:6a4db94011d3 54 void port_mode(port_t *obj, PinMode mode)
sahilmgandhi 18:6a4db94011d3 55 {
sahilmgandhi 18:6a4db94011d3 56 switch (mode) {
sahilmgandhi 18:6a4db94011d3 57 case PullUp:
sahilmgandhi 18:6a4db94011d3 58 {
sahilmgandhi 18:6a4db94011d3 59 MBED_ASSERT(false); /* Not currently supported on HI2110 */
sahilmgandhi 18:6a4db94011d3 60 }
sahilmgandhi 18:6a4db94011d3 61 break;
sahilmgandhi 18:6a4db94011d3 62 case PullDown:
sahilmgandhi 18:6a4db94011d3 63 {
sahilmgandhi 18:6a4db94011d3 64 GPIO_PULLEN_BITSET |= obj->mask;
sahilmgandhi 18:6a4db94011d3 65 }
sahilmgandhi 18:6a4db94011d3 66 break;
sahilmgandhi 18:6a4db94011d3 67 case PullNone:
sahilmgandhi 18:6a4db94011d3 68 {
sahilmgandhi 18:6a4db94011d3 69 GPIO_PULLEN_BITCLR &= ~(obj->mask);
sahilmgandhi 18:6a4db94011d3 70 }
sahilmgandhi 18:6a4db94011d3 71 break;
sahilmgandhi 18:6a4db94011d3 72 default:
sahilmgandhi 18:6a4db94011d3 73 break;
sahilmgandhi 18:6a4db94011d3 74 }
sahilmgandhi 18:6a4db94011d3 75 }
sahilmgandhi 18:6a4db94011d3 76
sahilmgandhi 18:6a4db94011d3 77 void port_dir(port_t *obj, PinDirection dir)
sahilmgandhi 18:6a4db94011d3 78 {
sahilmgandhi 18:6a4db94011d3 79 switch (dir) {
sahilmgandhi 18:6a4db94011d3 80 case PIN_INPUT:
sahilmgandhi 18:6a4db94011d3 81 {
sahilmgandhi 18:6a4db94011d3 82 *(obj->reg_dir) &= ~(obj->mask);
sahilmgandhi 18:6a4db94011d3 83 }
sahilmgandhi 18:6a4db94011d3 84 break;
sahilmgandhi 18:6a4db94011d3 85 case PIN_OUTPUT:
sahilmgandhi 18:6a4db94011d3 86 {
sahilmgandhi 18:6a4db94011d3 87 *(obj->reg_dir) |= obj->mask;
sahilmgandhi 18:6a4db94011d3 88 /* TODO: do we need to set the drive strength? If so, how do we decide which way? */
sahilmgandhi 18:6a4db94011d3 89 /* obj->reg_drv |= obj->mask; */
sahilmgandhi 18:6a4db94011d3 90 }
sahilmgandhi 18:6a4db94011d3 91 break;
sahilmgandhi 18:6a4db94011d3 92 }
sahilmgandhi 18:6a4db94011d3 93 }
sahilmgandhi 18:6a4db94011d3 94
sahilmgandhi 18:6a4db94011d3 95 void port_write(port_t *obj, int value)
sahilmgandhi 18:6a4db94011d3 96 {
sahilmgandhi 18:6a4db94011d3 97 *(obj->reg_out) = value;
sahilmgandhi 18:6a4db94011d3 98 }
sahilmgandhi 18:6a4db94011d3 99
sahilmgandhi 18:6a4db94011d3 100 int port_read(port_t *obj)
sahilmgandhi 18:6a4db94011d3 101 {
sahilmgandhi 18:6a4db94011d3 102 return *(obj->reg_val);
sahilmgandhi 18:6a4db94011d3 103 }