Mouse code for the MacroRat
mbed-dev/targets/TARGET_RENESAS/TARGET_RZ_A1H/gpio_api.c@46:b156ef445742, 2017-06-03 (annotated)
- Committer:
- sahilmgandhi
- Date:
- Sat Jun 03 00:22:44 2017 +0000
- Revision:
- 46:b156ef445742
- Parent:
- 18:6a4db94011d3
Final code for internal battlebot competition.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
sahilmgandhi | 18:6a4db94011d3 | 1 | /* mbed Microcontroller Library |
sahilmgandhi | 18:6a4db94011d3 | 2 | * Copyright (c) 2006-2013 ARM Limited |
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 | #include "gpio_api.h" |
sahilmgandhi | 18:6a4db94011d3 | 17 | #include "pinmap.h" |
sahilmgandhi | 18:6a4db94011d3 | 18 | #include "gpio_addrdefine.h" |
sahilmgandhi | 18:6a4db94011d3 | 19 | |
sahilmgandhi | 18:6a4db94011d3 | 20 | |
sahilmgandhi | 18:6a4db94011d3 | 21 | uint32_t gpio_set(PinName pin) { |
sahilmgandhi | 18:6a4db94011d3 | 22 | pin_function(pin, 0); |
sahilmgandhi | 18:6a4db94011d3 | 23 | return (1 << PINNO(pin)); |
sahilmgandhi | 18:6a4db94011d3 | 24 | } |
sahilmgandhi | 18:6a4db94011d3 | 25 | |
sahilmgandhi | 18:6a4db94011d3 | 26 | void gpio_init(gpio_t *obj, PinName pin) { |
sahilmgandhi | 18:6a4db94011d3 | 27 | int group ; |
sahilmgandhi | 18:6a4db94011d3 | 28 | obj->pin = pin; |
sahilmgandhi | 18:6a4db94011d3 | 29 | if(pin == NC) return; |
sahilmgandhi | 18:6a4db94011d3 | 30 | |
sahilmgandhi | 18:6a4db94011d3 | 31 | obj->mask = gpio_set(pin); |
sahilmgandhi | 18:6a4db94011d3 | 32 | |
sahilmgandhi | 18:6a4db94011d3 | 33 | group = PINGROUP(pin); |
sahilmgandhi | 18:6a4db94011d3 | 34 | if (group > 11) return; |
sahilmgandhi | 18:6a4db94011d3 | 35 | |
sahilmgandhi | 18:6a4db94011d3 | 36 | obj->reg_set = (volatile uint32_t *) PSR(group); |
sahilmgandhi | 18:6a4db94011d3 | 37 | obj->reg_in = (volatile uint32_t *) PPR(group); |
sahilmgandhi | 18:6a4db94011d3 | 38 | obj->reg_dir = (volatile uint32_t *)PMSR(group); |
sahilmgandhi | 18:6a4db94011d3 | 39 | obj->reg_buf = (volatile uint32_t *)PIBC(group); |
sahilmgandhi | 18:6a4db94011d3 | 40 | } |
sahilmgandhi | 18:6a4db94011d3 | 41 | |
sahilmgandhi | 18:6a4db94011d3 | 42 | void gpio_mode(gpio_t *obj, PinMode mode) { |
sahilmgandhi | 18:6a4db94011d3 | 43 | /* Pull up and Pull down settings aren't supported because RZ/A1H doesn't have pull up/down for pins(signals). */ |
sahilmgandhi | 18:6a4db94011d3 | 44 | } |
sahilmgandhi | 18:6a4db94011d3 | 45 | |
sahilmgandhi | 18:6a4db94011d3 | 46 | void gpio_dir(gpio_t *obj, PinDirection direction) { |
sahilmgandhi | 18:6a4db94011d3 | 47 | switch (direction) { |
sahilmgandhi | 18:6a4db94011d3 | 48 | case PIN_INPUT : |
sahilmgandhi | 18:6a4db94011d3 | 49 | *obj->reg_dir = (obj->mask << 16) | obj->mask; |
sahilmgandhi | 18:6a4db94011d3 | 50 | *obj->reg_buf |= obj->mask; |
sahilmgandhi | 18:6a4db94011d3 | 51 | break; |
sahilmgandhi | 18:6a4db94011d3 | 52 | case PIN_OUTPUT: |
sahilmgandhi | 18:6a4db94011d3 | 53 | *obj->reg_dir = (obj->mask << 16) | 0; |
sahilmgandhi | 18:6a4db94011d3 | 54 | *obj->reg_buf &= ~obj->mask; |
sahilmgandhi | 18:6a4db94011d3 | 55 | break; |
sahilmgandhi | 18:6a4db94011d3 | 56 | } |
sahilmgandhi | 18:6a4db94011d3 | 57 | } |