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Diffstat (limited to 'core/wiring_digital.c')
| -rw-r--r-- | core/wiring_digital.c | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/core/wiring_digital.c b/core/wiring_digital.c new file mode 100644 index 0000000..71dae57 --- /dev/null +++ b/core/wiring_digital.c @@ -0,0 +1,140 @@ +/* ***************************************************************************** + * 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 "io.h" + +#define ADC0 0 +#define ADC1 1 +#define ADC2 2 +#define ADC3 3 +#define ADC4 4 +#define ADC5 5 +#define ADC6 6 +#define ADC7 7 +#define ADC8 8 +#define ADC9 9 +#define ADC10 10 +#define ADC11 11 +#define ADC12 12 +#define ADC13 13 +#define ADC14 14 +#define ADC15 15 +#define ADC16 16 + +const PinMapping PIN_MAP[NR_MAPLE_PINS] = { + {GPIOA_BASE, 3, ADC3, TIMER2_CH4_CCR}, // D0/PA3 + {GPIOA_BASE, 2, ADC2, TIMER2_CH3_CCR}, // D1/PA2 + {GPIOA_BASE, 0, ADC0, TIMER2_CH1_CCR}, // D2/PA0 + {GPIOA_BASE, 1, ADC1, TIMER2_CH2_CCR}, // D3/PA1 + {GPIOB_BASE, 5, ADC_INVALID, TIMER_INVALID}, // D4/PB5 + {GPIOB_BASE, 6, ADC_INVALID, TIMER4_CH1_CCR}, // D5/PB6 + {GPIOA_BASE, 8, ADC_INVALID, TIMER1_CH1_CCR}, // D6/PA8 + {GPIOA_BASE, 9, ADC_INVALID, TIMER1_CH2_CCR}, // D7/PA9 + {GPIOA_BASE, 10, ADC_INVALID, TIMER1_CH3_CCR}, // D8/PA10 + {GPIOB_BASE, 7, ADC_INVALID, TIMER4_CH2_CCR}, // D9/PB7 + {GPIOA_BASE, 4, ADC4, TIMER_INVALID}, // D10/PA4 + {GPIOA_BASE, 7, ADC7, TIMER3_CH2_CCR}, // D11/PA7 + {GPIOA_BASE, 6, ADC6, TIMER3_CH1_CCR}, // D12/PA6 + {GPIOA_BASE, 5, ADC5, TIMER_INVALID}, // D13/PA5 + {GPIOB_BASE, 8, ADC_INVALID, TIMER4_CH3_CCR}, // D14/PB8 + /* Little header */ + {GPIOC_BASE, 0, ADC10, TIMER_INVALID}, // D15/PC0 + {GPIOC_BASE, 1, ADC11, TIMER_INVALID}, // D16/PC1 + {GPIOC_BASE, 2, ADC12, TIMER_INVALID}, // D17/PC2 + {GPIOC_BASE, 3, ADC13, TIMER_INVALID}, // D18/PC3 + {GPIOC_BASE, 4, ADC14, TIMER_INVALID}, // D19/PC4 + {GPIOC_BASE, 5, ADC15, TIMER_INVALID}, // D20/PC5 + /* External header */ + {GPIOC_BASE, 13, ADC_INVALID, TIMER_INVALID}, // D21/PC13 + {GPIOC_BASE, 14, ADC_INVALID, TIMER_INVALID}, // D22/PC14 + {GPIOC_BASE, 15, ADC_INVALID, TIMER_INVALID}, // D23/PC15 + {GPIOB_BASE, 9, ADC_INVALID, TIMER4_CH4_CCR}, // D24/PB9 + {GPIOD_BASE, 2, ADC_INVALID, TIMER_INVALID}, // D25/PD2 + {GPIOC_BASE, 10, ADC_INVALID, TIMER_INVALID}, // D26/PC10 + {GPIOB_BASE, 0, ADC8, TIMER3_CH3_CCR}, // D27/PB0 + {GPIOB_BASE, 1, ADC9, TIMER3_CH4_CCR}, // D28/PB1 + {GPIOB_BASE, 10, ADC_INVALID, TIMER_INVALID}, // D29/PB10 + {GPIOB_BASE, 11, ADC_INVALID, TIMER_INVALID}, // D30/PB11 + {GPIOB_BASE, 12, ADC_INVALID, TIMER_INVALID}, // D31/PB12 + {GPIOB_BASE, 13, ADC_INVALID, TIMER_INVALID}, // D32/PB13 + {GPIOB_BASE, 14, ADC_INVALID, TIMER_INVALID}, // D33/PB14 + {GPIOB_BASE, 15, ADC_INVALID, TIMER_INVALID}, // D34/PB15 + {GPIOC_BASE, 6, ADC_INVALID, TIMER_INVALID}, // D35/PC6 + {GPIOC_BASE, 7, ADC_INVALID, TIMER_INVALID}, // D36/PC7 + {GPIOC_BASE, 8, ADC_INVALID, TIMER_INVALID}, // D37/PC8 + {GPIOC_BASE, 9, ADC_INVALID, TIMER_INVALID} // D38/PC9 +}; + +void pinMode(uint8_t pin, WiringPinMode mode) { + uint8 outputMode; + + if (pin >= NR_MAPLE_PINS) + return; + + switch(mode) { + case OUTPUT: + outputMode = GPIO_MODE_OUTPUT_PP; + break; + case OUTPUT_OPEN_DRAIN: + outputMode = GPIO_MODE_OUTPUT_OD; + break; + case INPUT: + case INPUT_FLOATING: + outputMode = GPIO_MODE_INPUT_FLOATING; + break; + case INPUT_ANALOG: + outputMode = GPIO_MODE_INPUT_ANALOG; + 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_MAP[pin].port, PIN_MAP[pin].pin, outputMode); +} + + +uint32_t digitalRead(uint8_t pin) { + if (pin >= NR_MAPLE_PINS) + return 0; + + return (PIN_MAP[pin].port->IDR & BIT(PIN_MAP[pin].pin)) ? 1 : 0; +} + +void digitalWrite(uint8_t pin, uint8_t val) { + if (pin >= NR_MAPLE_PINS) + return; + + gpio_write_bit(PIN_MAP[pin].port, PIN_MAP[pin].pin, val); +} |