#ifndef ucoo_hal_exti_exti_stm32_hh #define ucoo_hal_exti_exti_stm32_hh // ucoolib - Microcontroller object oriented library. {{{ // // Copyright (C) 2015 Nicolas Schodet // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. // // }}} #include "ucoo/intf/exti.hh" #include "ucoo/hal/gpio/gpio.hh" #include "ucoo/arch/interrupt.arm.hh" namespace ucoo { /// External interrupt on STM32. class ExtiHard : public Exti { public: enum class Edge { RISING = 1, FALLING = 2, BOTH = 3 }; public: /// Constructor, take the EXTI number. ExtiHard (int n); /// Constructor, shortcut to set source. ExtiHard (const GpioPort &gpio_port, int n); /// Constructor, shortcut to set source and trigger. ExtiHard (const GpioPort &gpio_port, int n, Edge edge); /// Destructor. ~ExtiHard (); /// See Exti::enable. void enable (); /// See Exti::disable. void disable (); /// See Exti::mask. bool mask (); /// See Exti::unmask. void unmask (bool saved_state); /// Set trigger edge. void set_trigger (Edge edge); /// Select source, take GPIO port address. void set_source (const GpioPort &gpio_port); private: /// Handle interrupts. void isr (); template friend void interrupt (); private: /// EXTI line number. int n_; }; inline ExtiHard::ExtiHard (const GpioPort &gpio_port, int n) : ExtiHard (n) { set_source (gpio_port); } inline ExtiHard::ExtiHard (const GpioPort &gpio_port, int n, Edge edge) : ExtiHard (gpio_port, n) { set_trigger (edge); } } // namespace ucoo #endif // ucoo_hal_exti_exti_stm32_hh