diff options
Diffstat (limited to 'src/wiring/wiring_digital.c')
| -rw-r--r-- | src/wiring/wiring_digital.c | 112 |
1 files changed, 87 insertions, 25 deletions
diff --git a/src/wiring/wiring_digital.c b/src/wiring/wiring_digital.c index 1ece41a..456f5da 100644 --- a/src/wiring/wiring_digital.c +++ b/src/wiring/wiring_digital.c @@ -1,42 +1,104 @@ -#include "gpio.h" +/* ***************************************************************************** + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + * + * Created: 12/18/09 02:42:00 + * Copyright (c) 2009 Perry L. Hung. All rights reserved. + * + * ****************************************************************************/ + +/** + * @file wiring_digital.c + * + * @brief + */ + #include "wiring.h" -#include "util.h" +#include "io.h" +#include "gpio.h" + +typedef enum AFMode{ + AF_NONE, + AF_PWM, + AF_SERIAL, + AF_I2C, // unused for now + AF_SPI, // unusued for now +} AFMode; + typedef struct PinGPIOMapping { GPIO_Port *port; - uint32_t pin; + uint32 pin; } PinGPIOMapping; + +/* Reset state is input floating */ static const PinGPIOMapping PIN_TO_GPIO[NR_MAPLE_PINS] = { - {_GPIOA_BASE, 3}, // D0/PA3 - {_GPIOA_BASE, 2}, // D1/PA2 - {_GPIOA_BASE, 0}, // D2/PA0 - {_GPIOA_BASE, 1}, // D3/PA1 - {_GPIOB_BASE, 5}, // D4/PB5 - {_GPIOB_BASE, 6}, // D5/PB6 - {_GPIOA_BASE, 8}, // D6/PA8 - {_GPIOA_BASE, 9}, // D7/PA9 - {_GPIOA_BASE, 10}, // D8/PA10 - {_GPIOB_BASE, 7}, // D9/PB7 - {_GPIOA_BASE, 4}, // D10/PA4 - {_GPIOA_BASE, 7}, // D11/PA7 - {_GPIOA_BASE, 6}, // D12/PA6 - {_GPIOA_BASE, 5}, // D13/PA5 + {GPIOA_BASE, 3}, // D0/PA3 + {GPIOA_BASE, 2}, // D1/PA2 + {GPIOA_BASE, 0}, // D2/PA0 + {GPIOA_BASE, 1}, // D3/PA1 + {GPIOB_BASE, 5}, // D4/PB5 + {GPIOB_BASE, 6}, // D5/PB6 + {GPIOA_BASE, 8}, // D6/PA8 + {GPIOA_BASE, 9}, // D7/PA9 + {GPIOA_BASE, 10}, // D8/PA10 + {GPIOB_BASE, 7}, // D9/PB7 + {GPIOA_BASE, 4}, // D10/PA4 + {GPIOA_BASE, 7}, // D11/PA7 + {GPIOA_BASE, 6}, // D12/PA6 + {GPIOA_BASE, 5}, // D13/PA5 +/* for later */ #if 0 - {_GPIOC_BASE, 0}, // D14/A0/PC0 - {_GPIOC_BASE, 1}, // D15/A1/PC1 - {_GPIOC_BASE, 2}, // D16/A2/PC2 - {_GPIOC_BASE, 3}, // D17/A3/PC3 - {_GPIOC_BASE, 4}, // D18/A4/PC4 - {_GPIOC_BASE, 5}, // D19/A5/PC5 + {GPIOC_BASE, 0}, // D14/A0/PC0 + {GPIOC_BASE, 1}, // D15/A1/PC1 + {GPIOC_BASE, 2}, // D16/A2/PC2 + {GPIOC_BASE, 3}, // D17/A3/PC3 + {GPIOC_BASE, 4}, // D18/A4/PC4 + {GPIOC_BASE, 5}, // D19/A5/PC5 #endif }; -void pinMode(uint8_t pin, uint8_t mode) { +void pinMode(uint8_t pin, WiringPinMode mode) { + uint8 outputMode; + if (pin >= NR_MAPLE_PINS) return; - gpio_set_mode(PIN_TO_GPIO[pin].port, PIN_TO_GPIO[pin].pin, mode); + switch(mode) { + case OUTPUT: + outputMode = GPIO_MODE_OUTPUT_PP; + break; + case INPUT: + case INPUT_FLOATING: + outputMode = GPIO_MODE_INPUT_FLOATING; + break; + case INPUT_PULLUP: + outputMode = GPIO_MODE_INPUT_PU; + break; + case INPUT_PULLDOWN: + outputMode = GPIO_MODE_INPUT_PD; + break; + case PWM: + outputMode = GPIO_MODE_AF_OUTPUT_PP; + break; + default: + ASSERT(0); + return; + } + + + gpio_set_mode(PIN_TO_GPIO[pin].port, PIN_TO_GPIO[pin].pin, outputMode); } |