diff --git a/bsp/stm32f40x/drivers/gpio.c b/bsp/stm32f40x/drivers/gpio.c index 88819f73b..4462f2847 100644 --- a/bsp/stm32f40x/drivers/gpio.c +++ b/bsp/stm32f40x/drivers/gpio.c @@ -1,15 +1,15 @@ /* * File : gpio.c * This file is part of RT-Thread RTOS - * COPYRIGHT (C) 2015, RT-Thread Development Team + * COPYRIGHT (C) 2017, RT-Thread Development Team * * The license and distribution terms for this file may be * found in the file LICENSE in this distribution or at * http://www.rt-thread.org/license/LICENSE * * Change Logs: - * Date Author Notes - * 2015-01-05 Bernard the first version + * Date Author Notes + * 2017-03-24 armink the first version */ #include @@ -18,6 +18,13 @@ #ifdef RT_USING_PIN +#define STM32_PIN_NUMBERS 100 //[48, 64, 100, 144 ] + +#define __STM32_PIN(index, rcc, gpio, gpio_index) { 0, RCC_##rcc##Periph_GPIO##gpio, GPIO##gpio, GPIO_Pin_##gpio_index} +#define __STM32_PIN_DEFAULT {-1, 0, 0, 0} + +#define ITEM_NUM(items) sizeof(items)/sizeof(items[0]) + /* STM32 GPIO driver */ struct pin_index { @@ -27,68 +34,413 @@ struct pin_index uint32_t pin; }; -static const struct pin_index pins[] = +/* STM32 GPIO irq information */ +struct pin_irq { - { 0, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_7}, - { 1, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_6}, - { 2, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_8}, - { 3, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_11}, - { 4, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_14}, - { 5, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_13}, - { 6, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_11}, - { 7, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_9}, - - { 8, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_12}, - { 9, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_13}, - {10, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_14}, - {11, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_15}, - {12, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_6}, - {13, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_5}, - - {14, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_8}, - {15, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_9}, - {16, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_5}, - {17, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_6}, - {18, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_6}, - {19, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_7}, - {20, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_9}, - {21, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_8}, - - {22, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_12}, - {23, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_2}, - {24, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_1}, - {25, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_0}, - {26, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_9}, - {27, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_13}, - {28, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_15}, - {29, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_12}, - {30, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_10}, - {31, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_8}, - {32, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_7}, - {33, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_4}, - {34, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_3}, - {35, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_2}, - {36, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_1}, - {37, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_0}, - {38, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_11}, - {39, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_10}, - {40, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_7}, - {41, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_3}, - {42, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_4}, - {43, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_8}, - {44, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_15}, - {45, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_14}, - {46, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_11}, - {47, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_5}, - {48, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_10}, - {49, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_15}, - {50, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_4}, - {51, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_7}, - {52, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_3}, - {53, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_4}, + /* EXTI port source gpiox, such as EXTI_PortSourceGPIOA */ + rt_uint8_t port_source; + /* EXTI pin sources, such as EXTI_PinSource0 */ + rt_uint8_t pin_source; + /* NVIC IRQ EXTI channel, such as EXTI0_IRQn */ + enum IRQn irq_exti_channel; + /* EXTI line, such as EXTI_Line0 */ + rt_uint32_t exti_line; +}; + +static const struct pin_index pins[] = +{ +#if (STM32_PIN_NUMBERS == 48) + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(2, AHB1, C, 13), + __STM32_PIN(3, AHB1, C, 14), + __STM32_PIN(4, AHB1, C, 15), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(10, AHB1, A, 0), + __STM32_PIN(11, AHB1, A, 1), + __STM32_PIN(12, AHB1, A, 2), + __STM32_PIN(13, AHB1, A, 3), + __STM32_PIN(14, AHB1, A, 4), + __STM32_PIN(15, AHB1, A, 5), + __STM32_PIN(16, AHB1, A, 6), + __STM32_PIN(17, AHB1, A, 7), + __STM32_PIN(18, AHB1, B, 0), + __STM32_PIN(19, AHB1, B, 1), + __STM32_PIN(20, AHB1, B, 2), + __STM32_PIN(21, AHB1, B, 10), + __STM32_PIN(22, AHB1, B, 11), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(25, AHB1, B, 12), + __STM32_PIN(26, AHB1, B, 13), + __STM32_PIN(27, AHB1, B, 14), + __STM32_PIN(28, AHB1, B, 15), + __STM32_PIN(29, AHB1, A, 8), + __STM32_PIN(30, AHB1, A, 9), + __STM32_PIN(31, AHB1, A, 10), + __STM32_PIN(32, AHB1, A, 11), + __STM32_PIN(33, AHB1, A, 12), + __STM32_PIN(34, AHB1, A, 13), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(37, AHB1, A, 14), + __STM32_PIN(38, AHB1, A, 15), + __STM32_PIN(39, AHB1, B, 3), + __STM32_PIN(40, AHB1, B, 4), + __STM32_PIN(41, AHB1, B, 5), + __STM32_PIN(42, AHB1, B, 6), + __STM32_PIN(43, AHB1, B, 7), + __STM32_PIN_DEFAULT, + __STM32_PIN(45, AHB1, B, 8), + __STM32_PIN(46, AHB1, B, 9), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + +#endif +#if (STM32_PIN_NUMBERS == 64) + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(2, AHB1, C, 13), + __STM32_PIN(3, AHB1, C, 14), + __STM32_PIN(4, AHB1, C, 15), + __STM32_PIN(5, AHB1, D, 0), + __STM32_PIN(6, AHB1, D, 1), + __STM32_PIN_DEFAULT, + __STM32_PIN(8, AHB1, C, 0), + __STM32_PIN(9, AHB1, C, 1), + __STM32_PIN(10, AHB1, C, 2), + __STM32_PIN(11, AHB1, C, 3), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(14, AHB1, A, 0), + __STM32_PIN(15, AHB1, A, 1), + __STM32_PIN(16, AHB1, A, 2), + __STM32_PIN(17, AHB1, A, 3), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(20, AHB1, A, 4), + __STM32_PIN(21, AHB1, A, 5), + __STM32_PIN(22, AHB1, A, 6), + __STM32_PIN(23, AHB1, A, 7), + __STM32_PIN(24, AHB1, C, 4), + __STM32_PIN(25, AHB1, C, 5), + __STM32_PIN(26, AHB1, B, 0), + __STM32_PIN(27, AHB1, B, 1), + __STM32_PIN(28, AHB1, B, 2), + __STM32_PIN(29, AHB1, B, 10), + __STM32_PIN(30, AHB1, B, 11), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(33, AHB1, B, 12), + __STM32_PIN(34, AHB1, B, 13), + __STM32_PIN(35, AHB1, B, 14), + __STM32_PIN(36, AHB1, B, 15), + __STM32_PIN(37, AHB1, C, 6), + __STM32_PIN(38, AHB1, C, 7), + __STM32_PIN(39, AHB1, C, 8), + __STM32_PIN(40, AHB1, C, 9), + __STM32_PIN(41, AHB1, A, 8), + __STM32_PIN(42, AHB1, A, 9), + __STM32_PIN(43, AHB1, A, 10), + __STM32_PIN(44, AHB1, A, 11), + __STM32_PIN(45, AHB1, A, 12), + __STM32_PIN(46, AHB1, A, 13), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(49, AHB1, A, 14), + __STM32_PIN(50, AHB1, A, 15), + __STM32_PIN(51, AHB1, C, 10), + __STM32_PIN(52, AHB1, C, 11), + __STM32_PIN(53, AHB1, C, 12), + __STM32_PIN(54, AHB1, D, 2), + __STM32_PIN(55, AHB1, B, 3), + __STM32_PIN(56, AHB1, B, 4), + __STM32_PIN(57, AHB1, B, 5), + __STM32_PIN(58, AHB1, B, 6), + __STM32_PIN(59, AHB1, B, 7), + __STM32_PIN_DEFAULT, + __STM32_PIN(61, AHB1, B, 8), + __STM32_PIN(62, AHB1, B, 9), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, +#endif +#if (STM32_PIN_NUMBERS == 100) + __STM32_PIN_DEFAULT, + __STM32_PIN(1, AHB1, E, 2), + __STM32_PIN(2, AHB1, E, 3), + __STM32_PIN(3, AHB1, E, 4), + __STM32_PIN(4, AHB1, E, 5), + __STM32_PIN(5, AHB1, E, 6), + __STM32_PIN_DEFAULT, + __STM32_PIN(7, AHB1, C, 13), + __STM32_PIN(8, AHB1, C, 14), + __STM32_PIN(9, AHB1, C, 15), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(15, AHB1, C, 0), + __STM32_PIN(16, AHB1, C, 1), + __STM32_PIN(17, AHB1, C, 2), + __STM32_PIN(18, AHB1, C, 3), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(23, AHB1, A, 0), + __STM32_PIN(24, AHB1, A, 1), + __STM32_PIN(25, AHB1, A, 2), + __STM32_PIN(26, AHB1, A, 3), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(29, AHB1, A, 4), + __STM32_PIN(30, AHB1, A, 5), + __STM32_PIN(31, AHB1, A, 6), + __STM32_PIN(32, AHB1, A, 7), + __STM32_PIN(33, AHB1, C, 4), + __STM32_PIN(34, AHB1, C, 5), + __STM32_PIN(35, AHB1, B, 0), + __STM32_PIN(36, AHB1, B, 1), + __STM32_PIN(37, AHB1, B, 2), + __STM32_PIN(38, AHB1, E, 7), + __STM32_PIN(39, AHB1, E, 8), + __STM32_PIN(40, AHB1, E, 9), + __STM32_PIN(41, AHB1, E, 10), + __STM32_PIN(42, AHB1, E, 11), + __STM32_PIN(43, AHB1, E, 12), + __STM32_PIN(44, AHB1, E, 13), + __STM32_PIN(45, AHB1, E, 14), + __STM32_PIN(46, AHB1, E, 15), + __STM32_PIN(47, AHB1, B, 10), + __STM32_PIN(48, AHB1, B, 11), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(51, AHB1, B, 12), + __STM32_PIN(52, AHB1, B, 13), + __STM32_PIN(53, AHB1, B, 14), + __STM32_PIN(54, AHB1, B, 15), + __STM32_PIN(55, AHB1, D, 8), + __STM32_PIN(56, AHB1, D, 9), + __STM32_PIN(57, AHB1, D, 10), + __STM32_PIN(58, AHB1, D, 11), + __STM32_PIN(59, AHB1, D, 12), + __STM32_PIN(60, AHB1, D, 13), + __STM32_PIN(61, AHB1, D, 14), + __STM32_PIN(62, AHB1, D, 15), + __STM32_PIN(63, AHB1, C, 6), + __STM32_PIN(64, AHB1, C, 7), + __STM32_PIN(65, AHB1, C, 8), + __STM32_PIN(66, AHB1, C, 9), + __STM32_PIN(67, AHB1, A, 8), + __STM32_PIN(68, AHB1, A, 9), + __STM32_PIN(69, AHB1, A, 10), + __STM32_PIN(70, AHB1, A, 11), + __STM32_PIN(71, AHB1, A, 12), + __STM32_PIN(72, AHB1, A, 13), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(76, AHB1, A, 14), + __STM32_PIN(77, AHB1, A, 15), + __STM32_PIN(78, AHB1, C, 10), + __STM32_PIN(79, AHB1, C, 11), + __STM32_PIN(80, AHB1, C, 12), + __STM32_PIN(81, AHB1, D, 0), + __STM32_PIN(82, AHB1, D, 1), + __STM32_PIN(83, AHB1, D, 2), + __STM32_PIN(84, AHB1, D, 3), + __STM32_PIN(85, AHB1, D, 4), + __STM32_PIN(86, AHB1, D, 5), + __STM32_PIN(87, AHB1, D, 6), + __STM32_PIN(88, AHB1, D, 7), + __STM32_PIN(89, AHB1, B, 3), + __STM32_PIN(90, AHB1, B, 4), + __STM32_PIN(91, AHB1, B, 5), + __STM32_PIN(92, AHB1, B, 6), + __STM32_PIN(93, AHB1, B, 7), + __STM32_PIN_DEFAULT, + __STM32_PIN(95, AHB1, B, 8), + __STM32_PIN(96, AHB1, B, 9), + __STM32_PIN(97, AHB1, E, 0), + __STM32_PIN(98, AHB1, E, 1), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, +#endif +#if (STM32_PIN_NUMBERS == 144) + __STM32_PIN_DEFAULT, + __STM32_PIN(1, AHB1, E, 2), + __STM32_PIN(2, AHB1, E, 3), + __STM32_PIN(3, AHB1, E, 4), + __STM32_PIN(4, AHB1, E, 5), + __STM32_PIN(5, AHB1, E, 6), + __STM32_PIN_DEFAULT, + __STM32_PIN(7, AHB1, C, 13), + __STM32_PIN(8, AHB1, C, 14), + __STM32_PIN(9, AHB1, C, 15), + + __STM32_PIN(10, AHB1, F, 0), + __STM32_PIN(11, AHB1, F, 1), + __STM32_PIN(12, AHB1, F, 2), + __STM32_PIN(13, AHB1, F, 3), + __STM32_PIN(14, AHB1, F, 4), + __STM32_PIN(15, AHB1, F, 5), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(18, AHB1, F, 6), + __STM32_PIN(19, AHB1, F, 7), + __STM32_PIN(20, AHB1, F, 8), + __STM32_PIN(21, AHB1, F, 9), + __STM32_PIN(22, AHB1, F, 10), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(26, AHB1, C, 0), + __STM32_PIN(27, AHB1, C, 1), + __STM32_PIN(28, AHB1, C, 2), + __STM32_PIN(29, AHB1, C, 3), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(34, AHB1, A, 0), + __STM32_PIN(35, AHB1, A, 1), + __STM32_PIN(36, AHB1, A, 2), + __STM32_PIN(37, AHB1, A, 3), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(40, AHB1, A, 4), + __STM32_PIN(41, AHB1, A, 5), + __STM32_PIN(42, AHB1, A, 6), + __STM32_PIN(43, AHB1, A, 7), + __STM32_PIN(44, AHB1, C, 4), + __STM32_PIN(45, AHB1, C, 5), + __STM32_PIN(46, AHB1, B, 0), + __STM32_PIN(47, AHB1, B, 1), + __STM32_PIN(48, AHB1, B, 2), + __STM32_PIN(49, AHB1, F, 11), + __STM32_PIN(50, AHB1, F, 12), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(53, AHB1, F, 13), + __STM32_PIN(54, AHB1, F, 14), + __STM32_PIN(55, AHB1, F, 15), + __STM32_PIN(56, AHB1, G, 0), + __STM32_PIN(57, AHB1, G, 1), + __STM32_PIN(58, AHB1, E, 7), + __STM32_PIN(59, AHB1, E, 8), + __STM32_PIN(60, AHB1, E, 9), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(63, AHB1, E, 10), + __STM32_PIN(64, AHB1, E, 11), + __STM32_PIN(65, AHB1, E, 12), + __STM32_PIN(66, AHB1, E, 13), + __STM32_PIN(67, AHB1, E, 14), + __STM32_PIN(68, AHB1, E, 15), + __STM32_PIN(69, AHB1, B, 10), + __STM32_PIN(70, AHB1, B, 11), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(73, AHB1, B, 12), + __STM32_PIN(74, AHB1, B, 13), + __STM32_PIN(75, AHB1, B, 14), + __STM32_PIN(76, AHB1, B, 15), + __STM32_PIN(77, AHB1, D, 8), + __STM32_PIN(78, AHB1, D, 9), + __STM32_PIN(79, AHB1, D, 10), + __STM32_PIN(80, AHB1, D, 11), + __STM32_PIN(81, AHB1, D, 12), + __STM32_PIN(82, AHB1, D, 13), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(85, AHB1, D, 14), + __STM32_PIN(86, AHB1, D, 15), + __STM32_PIN(87, AHB1, G, 2), + __STM32_PIN(88, AHB1, G, 3), + __STM32_PIN(89, AHB1, G, 4), + __STM32_PIN(90, AHB1, G, 5), + __STM32_PIN(91, AHB1, G, 6), + __STM32_PIN(92, AHB1, G, 7), + __STM32_PIN(93, AHB1, G, 8), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(96, AHB1, C, 6), + __STM32_PIN(97, AHB1, C, 7), + __STM32_PIN(98, AHB1, C, 8), + __STM32_PIN(99, AHB1, C, 9), + __STM32_PIN(100, AHB1, A, 8), + __STM32_PIN(101, AHB1, A, 9), + __STM32_PIN(102, AHB1, A, 10), + __STM32_PIN(103, AHB1, A, 11), + __STM32_PIN(104, AHB1, A, 12), + __STM32_PIN(105, AHB1, A, 13), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(109, AHB1, A, 14), + __STM32_PIN(110, AHB1, A, 15), + __STM32_PIN(111, AHB1, C, 10), + __STM32_PIN(112, AHB1, C, 11), + __STM32_PIN(113, AHB1, C, 12), + __STM32_PIN(114, AHB1, D, 0), + __STM32_PIN(115, AHB1, D, 1), + __STM32_PIN(116, AHB1, D, 2), + __STM32_PIN(117, AHB1, D, 3), + __STM32_PIN(118, AHB1, D, 4), + __STM32_PIN(119, AHB1, D, 5), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(122, AHB1, D, 6), + __STM32_PIN(123, AHB1, D, 7), + __STM32_PIN(124, AHB1, G, 9), + __STM32_PIN(125, AHB1, G, 10), + __STM32_PIN(126, AHB1, G, 11), + __STM32_PIN(127, AHB1, G, 12), + __STM32_PIN(128, AHB1, G, 13), + __STM32_PIN(129, AHB1, G, 14), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, + __STM32_PIN(132, AHB1, G, 15), + __STM32_PIN(133, AHB1, B, 3), + __STM32_PIN(134, AHB1, B, 4), + __STM32_PIN(135, AHB1, B, 5), + __STM32_PIN(136, AHB1, B, 6), + __STM32_PIN(137, AHB1, B, 7), + __STM32_PIN_DEFAULT, + __STM32_PIN(139, AHB1, B, 8), + __STM32_PIN(140, AHB1, B, 9), + __STM32_PIN(141, AHB1, E, 0), + __STM32_PIN(142, AHB1, E, 1), + __STM32_PIN_DEFAULT, + __STM32_PIN_DEFAULT, +#endif +}; + +struct rt_pin_irq_hdr pin_irq_hdr_tab[] = +{ + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, + {-1, 0, RT_NULL, RT_NULL}, }; -#define ITEM_NUM(items) sizeof(items)/sizeof(items[0]) const struct pin_index *get_pin(uint8_t pin) { const struct pin_index *index; @@ -96,6 +448,8 @@ const struct pin_index *get_pin(uint8_t pin) if (pin < ITEM_NUM(pins)) { index = &pins[pin]; + if (index->index == -1) + index = RT_NULL; } else { @@ -165,15 +519,15 @@ void stm32_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode) RCC_AHB1PeriphClockCmd(index->rcc, ENABLE); /* Configure GPIO_InitStructure */ - GPIO_InitStructure.GPIO_Pin = index->pin; - GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; - GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz; + GPIO_InitStructure.GPIO_Pin = index->pin; + GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz; + GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; if (mode == PIN_MODE_OUTPUT) { /* output setting */ - GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT; - GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL; + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT; + GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; } else if (mode == PIN_MODE_INPUT) { @@ -187,27 +541,380 @@ void stm32_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode) GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; } - else + else if (mode == PIN_MODE_INPUT_PULLDOWN) { - /* input setting:default. */ + /* input setting: pull down. */ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN; GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN; } + else if (mode == PIN_MODE_OUTPUT_OD) + { + /* output setting: open drain */ + GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT; + GPIO_InitStructure.GPIO_OType = GPIO_OType_OD; + } + else + { + /* error mode */ + RT_ASSERT(0); + } GPIO_Init(index->gpio, &GPIO_InitStructure); } +rt_inline rt_int32_t bit2bitno(rt_uint32_t bit) +{ + int i; + for (i = 0; i < 32; i++) + { + if ((1UL << i) == bit) + { + return i; + } + } + return -1; +} + +rt_inline rt_int32_t bitno2bit(rt_uint32_t bitno) +{ + if (bitno <= 32) + { + return 1UL << bitno; + } + else + { + return 0; + } +} + +static const struct pin_irq *get_pin_irq(uint16_t pin) +{ + static struct pin_irq irq; + const struct pin_index *index; + + index = get_pin(pin); + if (index == RT_NULL) + { + return RT_NULL; + } + + irq.exti_line = index->pin; + irq.pin_source = bit2bitno(index->pin); + irq.port_source = ((uint32_t)index->gpio - GPIOA_BASE) / (GPIOB_BASE - GPIOA_BASE); + switch (irq.pin_source) + { + case 0 : irq.irq_exti_channel = EXTI0_IRQn;break; + case 1 : irq.irq_exti_channel = EXTI1_IRQn;break; + case 2 : irq.irq_exti_channel = EXTI2_IRQn;break; + case 3 : irq.irq_exti_channel = EXTI3_IRQn;break; + case 4 : irq.irq_exti_channel = EXTI4_IRQn;break; + case 5 : + case 6 : + case 7 : + case 8 : + case 9 : irq.irq_exti_channel = EXTI9_5_IRQn;break; + case 10 : + case 11 : + case 12 : + case 13 : + case 14 : + case 15 : irq.irq_exti_channel = EXTI15_10_IRQn;break; + default : return RT_NULL; + } + + return &irq; +}; + +rt_err_t stm32_pin_attach_irq(struct rt_device *device, rt_int32_t pin, + rt_uint32_t mode, void (*hdr)(void *args), void *args) +{ + const struct pin_index *index; + rt_base_t level; + + rt_int32_t irqindex = -1; + index = get_pin(pin); + if (index == RT_NULL) + { + return -RT_ENOSYS; + } + irqindex = bit2bitno(index->pin); + if (irqindex < 0 || irqindex >= ITEM_NUM(pin_irq_hdr_tab)) + { + return -RT_ENOSYS; + } + + level = rt_hw_interrupt_disable(); + if (pin_irq_hdr_tab[irqindex].pin == pin && + pin_irq_hdr_tab[irqindex].hdr == hdr && + pin_irq_hdr_tab[irqindex].mode == mode && + pin_irq_hdr_tab[irqindex].args == args + ) + { + rt_hw_interrupt_enable(level); + return RT_EOK; + } + if (pin_irq_hdr_tab[irqindex].pin != -1) + { + rt_hw_interrupt_enable(level); + return -RT_EBUSY; + } + pin_irq_hdr_tab[irqindex].pin = pin; + //TODO PA1 will overwrite PB1's hdr, using rt_list ? + pin_irq_hdr_tab[irqindex].hdr = hdr; + pin_irq_hdr_tab[irqindex].mode = mode; + pin_irq_hdr_tab[irqindex].args = args; + rt_hw_interrupt_enable(level); + + return RT_EOK; +} + +rt_err_t stm32_pin_dettach_irq(struct rt_device *device, rt_int32_t pin) +{ + const struct pin_index *index; + rt_base_t level; + rt_int32_t irqindex = -1; + + index = get_pin(pin); + if (index == RT_NULL) + { + return -RT_ENOSYS; + } + irqindex = bit2bitno(index->pin); + if (irqindex < 0 || irqindex >= ITEM_NUM(pin_irq_hdr_tab)) + { + return -RT_ENOSYS; + } + + level = rt_hw_interrupt_disable(); + if (pin_irq_hdr_tab[irqindex].pin == -1) + { + rt_hw_interrupt_enable(level); + return RT_EOK; + } + pin_irq_hdr_tab[irqindex].pin = -1; + pin_irq_hdr_tab[irqindex].hdr = RT_NULL; + pin_irq_hdr_tab[irqindex].mode = 0; + pin_irq_hdr_tab[irqindex].args = RT_NULL; + rt_hw_interrupt_enable(level); + + return RT_EOK; +} + +rt_err_t stm32_pin_irq_enable(struct rt_device *device, rt_base_t pin, rt_uint32_t enabled) +{ + const struct pin_index *index; + const struct pin_irq *irq; + rt_base_t level; + rt_int32_t irqindex = -1; + NVIC_InitTypeDef NVIC_InitStructure; + EXTI_InitTypeDef EXTI_InitStructure; + + index = get_pin(pin); + if (index == RT_NULL) + { + return -RT_ENOSYS; + } + if (enabled == PIN_IRQ_ENABLE) + { + irqindex = bit2bitno(index->pin); + if (irqindex < 0 || irqindex >= ITEM_NUM(pin_irq_hdr_tab)) + { + return -RT_ENOSYS; + } + level = rt_hw_interrupt_disable(); + if (pin_irq_hdr_tab[irqindex].pin == -1) + { + rt_hw_interrupt_enable(level); + return -RT_ENOSYS; + } + + irq = get_pin_irq(pin); + if (irq == RT_NULL) + { + rt_hw_interrupt_enable(level); + return -RT_ENOSYS; + } + /* select the input source pin for the EXTI line */ + SYSCFG_EXTILineConfig(irq->port_source, irq->pin_source); + /* select the mode(interrupt, event) and configure the trigger selection */ + EXTI_InitStructure.EXTI_Line = irq->exti_line; + EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; + switch (pin_irq_hdr_tab[irqindex].mode) + { + case PIN_IRQ_MODE_RISING: + EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising; + break; + case PIN_IRQ_MODE_FALLING: + EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; + break; + case PIN_IRQ_MODE_RISING_FALLING: + EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising_Falling; + break; + } + EXTI_InitStructure.EXTI_LineCmd = ENABLE; + EXTI_Init(&EXTI_InitStructure); + /* configure NVIC IRQ channel mapped to the EXTI line */ + NVIC_InitStructure.NVIC_IRQChannel = irq->irq_exti_channel; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); + + rt_hw_interrupt_enable(level); + } + else if (enabled == PIN_IRQ_DISABLE) + { + irq = get_pin_irq(index->pin); + if (irq == RT_NULL) + { + return -RT_ENOSYS; + } + EXTI_InitStructure.EXTI_Line = irq->exti_line; + EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt; + EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Rising; + EXTI_InitStructure.EXTI_LineCmd = DISABLE; + EXTI_Init(&EXTI_InitStructure); + } + else + { + return -RT_ENOSYS; + } + + return RT_EOK; +} const static struct rt_pin_ops _stm32_pin_ops = { stm32_pin_mode, stm32_pin_write, stm32_pin_read, + stm32_pin_attach_irq, + stm32_pin_dettach_irq, + stm32_pin_irq_enable, }; int stm32_hw_pin_init(void) { - rt_device_pin_register("pin", &_stm32_pin_ops, RT_NULL); - return 0; + int result; + + /* enable SYSCFG clock for EXTI */ + RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE); + + result = rt_device_pin_register("pin", &_stm32_pin_ops, RT_NULL); + return result; } INIT_BOARD_EXPORT(stm32_hw_pin_init); +rt_inline void pin_irq_hdr(int irqno) +{ + EXTI_ClearITPendingBit(bitno2bit(irqno)); + if (pin_irq_hdr_tab[irqno].hdr) + { + pin_irq_hdr_tab[irqno].hdr(pin_irq_hdr_tab[irqno].args); + } +} + +void EXTI0_IRQHandler(void) +{ + /* enter interrupt */ + rt_interrupt_enter(); + pin_irq_hdr(0); + /* leave interrupt */ + rt_interrupt_leave(); +} + +void EXTI1_IRQHandler(void) +{ + /* enter interrupt */ + rt_interrupt_enter(); + pin_irq_hdr(1); + /* leave interrupt */ + rt_interrupt_leave(); +} + +void EXTI2_IRQHandler(void) +{ + /* enter interrupt */ + rt_interrupt_enter(); + pin_irq_hdr(2); + /* leave interrupt */ + rt_interrupt_leave(); +} + +void EXTI3_IRQHandler(void) +{ + /* enter interrupt */ + rt_interrupt_enter(); + pin_irq_hdr(3); + /* leave interrupt */ + rt_interrupt_leave(); +} + +void EXTI4_IRQHandler(void) +{ + /* enter interrupt */ + rt_interrupt_enter(); + pin_irq_hdr(4); + /* leave interrupt */ + rt_interrupt_leave(); +} + +void EXTI9_5_IRQHandler(void) +{ + /* enter interrupt */ + rt_interrupt_enter(); + if (EXTI_GetITStatus(EXTI_Line5) != RESET) + { + pin_irq_hdr(5); + } + if (EXTI_GetITStatus(EXTI_Line6) != RESET) + { + pin_irq_hdr(6); + } + if (EXTI_GetITStatus(EXTI_Line7) != RESET) + { + pin_irq_hdr(7); + } + if (EXTI_GetITStatus(EXTI_Line8) != RESET) + { + pin_irq_hdr(8); + } + if (EXTI_GetITStatus(EXTI_Line9) != RESET) + { + pin_irq_hdr(9); + } + /* leave interrupt */ + rt_interrupt_leave(); +} + +void EXTI15_10_IRQHandler(void) +{ + /* enter interrupt */ + rt_interrupt_enter(); + if (EXTI_GetITStatus(EXTI_Line10) != RESET) + { + pin_irq_hdr(10); + } + if (EXTI_GetITStatus(EXTI_Line11) != RESET) + { + pin_irq_hdr(11); + } + if (EXTI_GetITStatus(EXTI_Line12) != RESET) + { + pin_irq_hdr(12); + } + if (EXTI_GetITStatus(EXTI_Line13) != RESET) + { + pin_irq_hdr(13); + } + if (EXTI_GetITStatus(EXTI_Line14) != RESET) + { + pin_irq_hdr(14); + } + if (EXTI_GetITStatus(EXTI_Line15) != RESET) + { + pin_irq_hdr(15); + } + /* leave interrupt */ + rt_interrupt_leave(); +} + #endif