| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #include <xc.h> |
| #include <mcu/mcu.h> |
| #include <mcu/pps.h> |
| |
| #define MCU_GPIO_UNDEF (0xFF) |
| #define PPS_BASE_ADDRESS (0xBF801500) |
| |
| static volatile uint32_t *const input_regs[4][16] = { |
| { |
| &INT3R, |
| &T2CKR, |
| &T6CKR, |
| &IC3R, |
| &IC7R, |
| &U1RXR, |
| &U2CTSR, |
| &U5RXR, |
| &U6CTSR, |
| &SDI1R, |
| &SDI3R, |
| #ifdef SDI5R |
| &SDI5R, |
| #else |
| NULL, |
| #endif |
| #ifdef SS6R |
| &SS6R, |
| #else |
| NULL, |
| #endif |
| &REFCLKI1R |
| }, |
| { |
| &INT4R, |
| &T5CKR, |
| &T7CKR, |
| &IC4R, |
| &IC8R, |
| &U3RXR, |
| &U4CTSR, |
| &SDI2R, |
| &SDI4R, |
| NULL, |
| &REFCLKI4R |
| }, |
| { |
| &INT2R, |
| &T3CKR, |
| &T8CKR, |
| &IC2R, |
| &IC5R, |
| &IC9R, |
| &U1CTSR, |
| &U2RXR, |
| &U5CTSR, |
| &SS1R, |
| &SS3R, |
| &SS4R, |
| #ifdef SS5R |
| &SS5R, |
| #else |
| NULL, |
| #endif |
| #ifdef C2RXR |
| &C2RXR, |
| #else |
| NULL, |
| #endif |
| }, |
| { |
| &INT1R, |
| &T4CKR, |
| &T9CKR, |
| &IC1R, |
| &IC6R, |
| &U3CTSR, |
| &U4RXR, |
| &U6RXR, |
| &SS2R, |
| #ifdef SDI6R |
| &SDI6R, |
| #else |
| NULL, |
| #endif |
| &OCFAR, |
| &REFCLKI3R |
| } |
| }; |
| |
| static const uint8_t input_pins[4][16] = { |
| { |
| MCU_GPIO_PORTD(2), |
| MCU_GPIO_PORTG(8), |
| MCU_GPIO_PORTF(4), |
| MCU_GPIO_PORTD(10), |
| MCU_GPIO_PORTF(1), |
| MCU_GPIO_PORTB(9), |
| MCU_GPIO_PORTB(10), |
| MCU_GPIO_PORTC(14), |
| MCU_GPIO_PORTB(5), |
| MCU_GPIO_UNDEF, |
| MCU_GPIO_PORTC(1), |
| MCU_GPIO_PORTD(14), |
| MCU_GPIO_PORTG(1), |
| MCU_GPIO_PORTA(14), |
| MCU_GPIO_PORTD(6), |
| MCU_GPIO_UNDEF |
| }, |
| { |
| MCU_GPIO_PORTD(3), |
| MCU_GPIO_PORTG(7), |
| MCU_GPIO_PORTF(5), |
| MCU_GPIO_PORTD(11), |
| MCU_GPIO_PORTF(0), |
| MCU_GPIO_PORTB(1), |
| MCU_GPIO_PORTE(5), |
| MCU_GPIO_PORTC(13), |
| MCU_GPIO_PORTB(3), |
| MCU_GPIO_UNDEF, |
| MCU_GPIO_PORTC(4), |
| MCU_GPIO_PORTD(15), |
| MCU_GPIO_PORTG(0), |
| MCU_GPIO_PORTA(15), |
| MCU_GPIO_PORTD(7), |
| MCU_GPIO_UNDEF |
| }, |
| { |
| MCU_GPIO_PORTD(9), |
| MCU_GPIO_PORTG(6), |
| MCU_GPIO_PORTB(8), |
| MCU_GPIO_PORTB(15), |
| MCU_GPIO_PORTD(4), |
| MCU_GPIO_PORTB(0), |
| MCU_GPIO_PORTE(3), |
| MCU_GPIO_PORTB(7), |
| MCU_GPIO_UNDEF, |
| MCU_GPIO_PORTF(12), |
| MCU_GPIO_PORTD(12), |
| MCU_GPIO_PORTF(8), |
| MCU_GPIO_PORTC(3), |
| MCU_GPIO_PORTE(9), |
| MCU_GPIO_UNDEF, |
| MCU_GPIO_UNDEF |
| }, |
| { |
| MCU_GPIO_PORTD(1), |
| MCU_GPIO_PORTG(9), |
| MCU_GPIO_PORTB(14), |
| MCU_GPIO_PORTD(0), |
| MCU_GPIO_UNDEF, |
| MCU_GPIO_PORTB(6), |
| MCU_GPIO_PORTD(5), |
| MCU_GPIO_PORTB(2), |
| MCU_GPIO_PORTF(3), |
| MCU_GPIO_PORTF(13), |
| MCU_GPIO_UNDEF, |
| MCU_GPIO_PORTF(2), |
| MCU_GPIO_PORTC(2), |
| MCU_GPIO_PORTE(8), |
| MCU_GPIO_UNDEF, |
| MCU_GPIO_UNDEF |
| } |
| }; |
| |
| int |
| pps_configure_output(uint8_t pin, uint8_t func) |
| { |
| volatile uint32_t *ptr = (volatile uint32_t *)PPS_BASE_ADDRESS; |
| |
| if (func >= 16) { |
| return -1; |
| } |
| |
| ptr[pin] = func; |
| return 0; |
| } |
| |
| |
| int |
| pps_configure_input(uint8_t pin, uint8_t func) |
| { |
| uint8_t index = func >> 4; |
| uint8_t val; |
| |
| if (index > 3) { |
| return -1; |
| } |
| |
| func &= 0xF; |
| if (input_regs[index][func] == NULL) { |
| return -1; |
| } |
| |
| for (val = 0; val < 16; ++val) { |
| if (input_pins[index][val] == pin) { |
| break; |
| } |
| } |
| if (val == 16) { |
| return -1; |
| } |
| |
| *input_regs[index][func] = val; |
| return 0; |
| } |
