diff options
Diffstat (limited to 'os/hal/ports/TIVA/LLD/GPIO')
| -rw-r--r-- | os/hal/ports/TIVA/LLD/GPIO/driver.mk | 9 | ||||
| -rw-r--r-- | os/hal/ports/TIVA/LLD/GPIO/hal_pal_lld.c | 1135 | ||||
| -rw-r--r-- | os/hal/ports/TIVA/LLD/GPIO/hal_pal_lld.h | 1141 |
3 files changed, 2285 insertions, 0 deletions
diff --git a/os/hal/ports/TIVA/LLD/GPIO/driver.mk b/os/hal/ports/TIVA/LLD/GPIO/driver.mk new file mode 100644 index 0000000..486fe73 --- /dev/null +++ b/os/hal/ports/TIVA/LLD/GPIO/driver.mk @@ -0,0 +1,9 @@ +ifeq ($(USE_SMART_BUILD),yes) +ifneq ($(findstring HAL_USE_PAL TRUE,$(HALCONF)),) +PLATFORMSRC += $(CHIBIOS_CONTRIB)/os/hal/ports/TIVA/LLD/GPIO/hal_pal_lld.c +endif +else +PLATFORMSRC += $(CHIBIOS_CONTRIB)/os/hal/ports/TIVA/LLD/GPIO/hal_pal_lld.c +endif + +PLATFORMINC += $(CHIBIOS_CONTRIB)/os/hal/ports/TIVA/LLD/GPIO diff --git a/os/hal/ports/TIVA/LLD/GPIO/hal_pal_lld.c b/os/hal/ports/TIVA/LLD/GPIO/hal_pal_lld.c new file mode 100644 index 0000000..7a222e4 --- /dev/null +++ b/os/hal/ports/TIVA/LLD/GPIO/hal_pal_lld.c @@ -0,0 +1,1135 @@ +/* + Copyright (C) 2014..2017 Marco Veeneman + + Licensed 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. +*/ + +/** + * @file GPIO/hal_pal_lld.c + * @brief TM4C123x/TM4C129x PAL subsystem low level driver. + * + * @addtogroup PAL + * @{ + */ + +#include "hal.h" + +#if HAL_USE_PAL || defined(__DOXYGEN__) + +/*===========================================================================*/ +/* Driver local definitions. */ +/*===========================================================================*/ + +#if TIVA_HAS_GPIOA || defined(__DOXYGEN__) +#define GPIOA_BIT (1 << 0) +#else +#define GPIOA_BIT 0 +#endif + +#if TIVA_HAS_GPIOB || defined(__DOXYGEN__) +#define GPIOB_BIT (1 << 1) +#else +#define GPIOB_BIT 0 +#endif + +#if TIVA_HAS_GPIOC || defined(__DOXYGEN__) +#define GPIOC_BIT (1 << 2) +#else +#define GPIOC_BIT 0 +#endif + +#if TIVA_HAS_GPIOD || defined(__DOXYGEN__) +#define GPIOD_BIT (1 << 3) +#else +#define GPIOD_BIT 0 +#endif + +#if TIVA_HAS_GPIOE || defined(__DOXYGEN__) +#define GPIOE_BIT (1 << 4) +#else +#define GPIOE_BIT 0 +#endif + +#if TIVA_HAS_GPIOF || defined(__DOXYGEN__) +#define GPIOF_BIT (1 << 5) +#else +#define GPIOF_BIT 0 +#endif + +#if TIVA_HAS_GPIOG || defined(__DOXYGEN__) +#define GPIOG_BIT (1 << 6) +#else +#define GPIOG_BIT 0 +#endif + +#if TIVA_HAS_GPIOH || defined(__DOXYGEN__) +#define GPIOH_BIT (1 << 7) +#else +#define GPIOH_BIT 0 +#endif + +#if TIVA_HAS_GPIOJ || defined(__DOXYGEN__) +#define GPIOJ_BIT (1 << 8) +#else +#define GPIOJ_BIT 0 +#endif + +#if TIVA_HAS_GPIOK || defined(__DOXYGEN__) +#define GPIOK_BIT (1 << 9) +#else +#define GPIOK_BIT 0 +#endif + +#if TIVA_HAS_GPIOL || defined(__DOXYGEN__) +#define GPIOL_BIT (1 << 10) +#else +#define GPIOL_BIT 0 +#endif + +#if TIVA_HAS_GPIOM || defined(__DOXYGEN__) +#define GPIOM_BIT (1 << 11) +#else +#define GPIOM_BIT 0 +#endif + +#if TIVA_HAS_GPION || defined(__DOXYGEN__) +#define GPION_BIT (1 << 12) +#else +#define GPION_BIT 0 +#endif + +#if TIVA_HAS_GPIOP || defined(__DOXYGEN__) +#define GPIOP_BIT (1 << 13) +#else +#define GPIOP_BIT 0 +#endif + +#if TIVA_HAS_GPIOQ || defined(__DOXYGEN__) +#define GPIOQ_BIT (1 << 14) +#else +#define GPIOQ_BIT 0 +#endif + +#if TIVA_HAS_GPIOR || defined(__DOXYGEN__) +#define GPIOR_BIT (1 << 15) +#else +#define GPIOR_BIT 0 +#endif + +#if TIVA_HAS_GPIOS || defined(__DOXYGEN__) +#define GPIOS_BIT (1 << 16) +#else +#define GPIOS_BIT 0 +#endif + +#if TIVA_HAS_GPIOT || defined(__DOXYGEN__) +#define GPIOT_BIT (1 << 17) +#else +#define GPIOT_BIT 0 +#endif + +#define RCGCGPIO_MASK (GPIOA_BIT | GPIOB_BIT | GPIOC_BIT | GPIOD_BIT | \ + GPIOE_BIT | GPIOF_BIT | GPIOG_BIT | GPIOH_BIT | \ + GPIOJ_BIT | GPIOK_BIT | GPIOL_BIT | GPIOM_BIT | \ + GPION_BIT | GPIOP_BIT | GPIOQ_BIT | GPIOR_BIT | \ + GPIOS_BIT | GPIOT_BIT) + +#define GPIOHBCTL_MASK (GPIOA_BIT | GPIOB_BIT | GPIOC_BIT | GPIOD_BIT | \ + GPIOE_BIT | GPIOF_BIT | GPIOG_BIT | GPIOH_BIT | \ + GPIOJ_BIT) + +#define GPIOC_JTAG_MASK (0x0F) +#define GPIOD_NMI_MASK (0x80) +#define GPIOF_NMI_MASK (0x01) + +/*===========================================================================*/ +/* Driver exported variables. */ +/*===========================================================================*/ + +/** + * @brief Event records for all GPIO channels. + */ +palevent_t _pal_events[TIVA_GPIO_PINS]; + +/*===========================================================================*/ +/* Driver local variables and types. */ +/*===========================================================================*/ + +/*===========================================================================*/ +/* Driver local functions. */ +/*===========================================================================*/ + +/** + * @brief Initializes the port with the port configuration. + * + * @param[in] port the port identifier + * @param[in] config the port configuration + */ +static void gpio_init(ioportid_t port, const tiva_gpio_setup_t *config) +{ + HWREG(port + GPIO_O_DATA) = config->data; + HWREG(port + GPIO_O_DIR) = config->dir; + HWREG(port + GPIO_O_AFSEL) = config->afsel; + HWREG(port + GPIO_O_DR2R) = config->dr2r; + HWREG(port + GPIO_O_DR4R) = config->dr4r; + HWREG(port + GPIO_O_DR8R) = config->dr8r; + HWREG(port + GPIO_O_ODR) = config->odr; + HWREG(port + GPIO_O_PUR) = config->pur; + HWREG(port + GPIO_O_PDR) = config->pdr; + HWREG(port + GPIO_O_SLR) = config->slr; + HWREG(port + GPIO_O_DEN) = config->den; + HWREG(port + GPIO_O_AMSEL) = config->amsel; + HWREG(port + GPIO_O_PCTL) = config->pctl; +} + +/** + * @brief Unlocks the masked pins of the GPIO peripheral. + * @note This function is only useful for PORTC0-3, PORTD7 and PORTF0. + * + * @param[in] port the port identifier + * @param[in] mask the pin mask + */ +static void gpio_unlock(ioportid_t port, ioportmask_t mask) +{ + + HWREG(port + GPIO_O_LOCK) = GPIO_LOCK_KEY; + HWREG(port + GPIO_O_CR) = mask; +} + +#if PAL_USE_CALLBACKS || PAL_USE_WAIT +/** + * @brief Enables GPIO IRQ sources. + */ +static void gpio_irq_enable(void) +{ +#if TIVA_HAS_GPIOA + nvicEnableVector(TIVA_GPIOA_NUMBER, TIVA_PAL_GPIOA_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOB + nvicEnableVector(TIVA_GPIOB_NUMBER, TIVA_PAL_GPIOB_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOC + nvicEnableVector(TIVA_GPIOC_NUMBER, TIVA_PAL_GPIOC_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOD + nvicEnableVector(TIVA_GPIOD_NUMBER, TIVA_PAL_GPIOD_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOE + nvicEnableVector(TIVA_GPIOE_NUMBER, TIVA_PAL_GPIOE_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOF + nvicEnableVector(TIVA_GPIOF_NUMBER, TIVA_PAL_GPIOF_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOG + nvicEnableVector(TIVA_GPIOG_NUMBER, TIVA_PAL_GPIOG_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOH + nvicEnableVector(TIVA_GPIOH_NUMBER, TIVA_PAL_GPIOH_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOJ + nvicEnableVector(TIVA_GPIOJ_NUMBER, TIVA_PAL_GPIOJ_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOK + nvicEnableVector(TIVA_GPIOK_NUMBER, TIVA_PAL_GPIOK_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOL + nvicEnableVector(TIVA_GPIOL_NUMBER, TIVA_PAL_GPIOL_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOM + nvicEnableVector(TIVA_GPIOM_NUMBER, TIVA_PAL_GPIOM_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPION + nvicEnableVector(TIVA_GPION_NUMBER, TIVA_PAL_GPION_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOP + nvicEnableVector(TIVA_GPIOP0_NUMBER, TIVA_PAL_GPIOP0_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOP1_NUMBER, TIVA_PAL_GPIOP1_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOP2_NUMBER, TIVA_PAL_GPIOP2_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOP3_NUMBER, TIVA_PAL_GPIOP3_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOP4_NUMBER, TIVA_PAL_GPIOP4_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOP5_NUMBER, TIVA_PAL_GPIOP5_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOP6_NUMBER, TIVA_PAL_GPIOP6_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOP7_NUMBER, TIVA_PAL_GPIOP7_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOQ + nvicEnableVector(TIVA_GPIOQ0_NUMBER, TIVA_PAL_GPIOQ0_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOQ1_NUMBER, TIVA_PAL_GPIOQ1_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOQ2_NUMBER, TIVA_PAL_GPIOQ2_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOQ3_NUMBER, TIVA_PAL_GPIOQ3_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOQ4_NUMBER, TIVA_PAL_GPIOQ4_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOQ5_NUMBER, TIVA_PAL_GPIOQ5_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOQ6_NUMBER, TIVA_PAL_GPIOQ6_IRQ_PRIORITY); + nvicEnableVector(TIVA_GPIOQ7_NUMBER, TIVA_PAL_GPIOQ7_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOR + nvicEnableVector(TIVA_GPIOR_NUMBER, TIVA_PAL_GPIOR_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOS + nvicEnableVector(TIVA_GPIOS_NUMBER, TIVA_PAL_GPIOS_IRQ_PRIORITY); +#endif +#if TIVA_HAS_GPIOT + nvicEnableVector(TIVA_GPIOT_NUMBER, TIVA_PAL_GPIOT_IRQ_PRIORITY); +#endif +} +#endif + +#define gpio_serve_irq(mask, pin, channel) { \ + \ + if ((mask) & (1U << (pin))) { \ + _pal_isr_code(channel); \ + } \ +} + +/** + * @brief Generic interrupt serving code for multiple pins per interrupt + * handler. + */ +#define ext_lld_serve_port_interrupt(gpio, start) \ + do { \ + uint32_t mis = HWREG(gpio + GPIO_O_MIS); \ + \ + HWREG(gpio + GPIO_O_ICR) = mis; \ + \ + gpio_serve_irq(mis, 0, start + 0); \ + gpio_serve_irq(mis, 1, start + 1); \ + gpio_serve_irq(mis, 2, start + 2); \ + gpio_serve_irq(mis, 3, start + 3); \ + gpio_serve_irq(mis, 4, start + 4); \ + gpio_serve_irq(mis, 5, start + 5); \ + gpio_serve_irq(mis, 6, start + 6); \ + gpio_serve_irq(mis, 7, start + 7); \ + } while (0); + +/** + * @brief Generic interrupt serving code for single pin per interrupt + * handler. + */ +#define ext_lld_serve_pin_interrupt(gpio, start, pin) \ + do { \ + HWREG(gpio + GPIO_O_ICR) = (1 << pin); \ + gpio_serve_irq((1 << pin), pin, start) \ + } while (0); + +/*===========================================================================*/ +/* Driver interrupt handlers. */ +/*===========================================================================*/ + +#if TIVA_HAS_GPIOA || defined(__DOXYGEN__) +/** + * @brief GPIOA interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOA_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOA, 0); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOB || defined(__DOXYGEN__) +/** + * @brief GPIOB interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOB_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOB, 8); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOC || defined(__DOXYGEN__) +/** + * @brief GPIOC interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOC_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOC, 16); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOD || defined(__DOXYGEN__) +/** + * @brief GPIOD interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOD_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOD, 24); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOE || defined(__DOXYGEN__) +/** + * @brief GPIOE interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOE_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOE, 32); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOF || defined(__DOXYGEN__) +/** + * @brief GPIOF interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOF_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOF, 40); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOG || defined(__DOXYGEN__) +/** + * @brief GPIOG interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOG_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOG, 48); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOH || defined(__DOXYGEN__) +/** + * @brief GPIOH interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOH_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOH, 56); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOJ || defined(__DOXYGEN__) +/** + * @brief GPIOJ interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOJ_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOJ, 64); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOK || defined(__DOXYGEN__) +/** + * @brief GPIOK interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOK_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOK, 72); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOL || defined(__DOXYGEN__) +/** + * @brief GPIOL interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOL_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOL, 80); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOM || defined(__DOXYGEN__) +/** + * @brief GPIOM interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOM_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOM, 88); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPION || defined(__DOXYGEN__) +/** + * @brief GPION interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPION_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPION, 96); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOP || defined(__DOXYGEN__) +/** + * @brief GPIOP0 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOP0_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOP, 104, 0); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOP1 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOP1_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOP, 105, 1); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOP2 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOP2_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOP, 106, 2); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOP3 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOP3_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOP, 107, 3); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOP4 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOP4_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOP, 108, 4); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOP5 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOP5_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOP, 109, 5); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOP6 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOP6_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOP, 110, 6); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOP7 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOP7_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOP, 111, 7); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOQ || defined(__DOXYGEN__) +/** + * @brief GPIOQ0 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOQ0_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOQ, 112, 0); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOQ1 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOQ1_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOQ, 113, 1); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOQ2 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOQ2_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOQ, 114, 2); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOQ3 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOQ3_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOQ, 115, 3); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOQ4 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOQ4_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOQ, 116, 4); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOQ5 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOQ5_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOQ, 117, 5); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOQ6 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOQ6_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOQ, 118, 6); + + OSAL_IRQ_EPILOGUE(); +} + +/** + * @brief GPIOQ7 interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOQ7_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_pin_interrupt(GPIOQ, 119, 7); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOR || defined(__DOXYGEN__) +/** + * @brief GPIOR interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOR_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOR, 120); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOS || defined(__DOXYGEN__) +/** + * @brief GPIOS interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOS_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOS, 128); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +#if TIVA_HAS_GPIOT || defined(__DOXYGEN__) +/** + * @brief GPIOT interrupt handler. + * + * @isr + */ +OSAL_IRQ_HANDLER(TIVA_GPIOT_HANDLER) +{ + OSAL_IRQ_PROLOGUE(); + + ext_lld_serve_port_interrupt(GPIOT, 132); + + OSAL_IRQ_EPILOGUE(); +} +#endif + +/*===========================================================================*/ +/* Driver exported functions. */ +/*===========================================================================*/ + +/** + * @brief Tiva I/O ports configuration. + * @details Ports A-F (G, H, J, K, L, M, N, P, Q, R, S, T) clocks enabled. + * + * @param[in] config the Tiva ports configuration + * + * @notapi + */ +void _pal_lld_init(const PALConfig *config) +{ +#if PAL_USE_CALLBACKS || PAL_USE_WAIT || defined(__DOXYGEN__) + unsigned i; + + for (i = 0; i < TIVA_GPIO_PINS; i++) { + _pal_init_event(i); + } +#endif + + /* + * Enables all GPIO clocks. + */ + HWREG(SYSCTL_RCGCGPIO) = RCGCGPIO_MASK; +#if defined(TM4C123x) + HWREG(SYSCTL_GPIOHBCTL) = GPIOHBCTL_MASK; +#endif + + /* Wait until all GPIO modules are ready */ + while (!((HWREG(SYSCTL_PRGPIO) & RCGCGPIO_MASK) == RCGCGPIO_MASK)) + ; + +#if TIVA_HAS_GPIOA + gpio_init(GPIOA, &config->PAData); +#endif +#if TIVA_HAS_GPIOB + gpio_init(GPIOB, &config->PBData); +#endif +#if TIVA_HAS_GPIOC + /* Unlock JTAG pins.*/ + gpio_unlock(GPIOC, GPIOC_JTAG_MASK); + gpio_init(GPIOC, &config->PCData); +#endif +#if TIVA_HAS_GPIOD + /* Unlock NMI pin.*/ + gpio_unlock(GPIOD, GPIOD_NMI_MASK); + gpio_init(GPIOD, &config->PDData); +#endif +#if TIVA_HAS_GPIOE + gpio_init(GPIOE, &config->PEData); +#endif +#if TIVA_HAS_GPIOF + /* Unlock NMI pin.*/ + gpio_unlock(GPIOF, GPIOF_NMI_MASK); + gpio_init(GPIOF, &config->PFData); +#endif +#if TIVA_HAS_GPIOG || defined(__DOXYGEN__) + gpio_init(GPIOG, &config->PGData); +#endif +#if TIVA_HAS_GPIOH || defined(__DOXYGEN__) + gpio_init(GPIOH, &config->PHData); +#endif +#if TIVA_HAS_GPIOJ || defined(__DOXYGEN__) + gpio_init(GPIOJ, &config->PJData); +#endif +#if TIVA_HAS_GPIOK || defined(__DOXYGEN__) + gpio_init(GPIOK, &config->PKData); +#endif +#if TIVA_HAS_GPIOL || defined(__DOXYGEN__) + gpio_init(GPIOL, &config->PLData); +#endif +#if TIVA_HAS_GPIOM || defined(__DOXYGEN__) + gpio_init(GPIOM, &config->PMData); +#endif +#if TIVA_HAS_GPION || defined(__DOXYGEN__) + gpio_init(GPION, &config->PNData); +#endif +#if TIVA_HAS_GPIOP || defined(__DOXYGEN__) + gpio_init(GPIOP, &config->PPData); +#endif +#if TIVA_HAS_GPIOQ || defined(__DOXYGEN__) + gpio_init(GPIOQ, &config->PQData); +#endif +#if TIVA_HAS_GPIOR || defined(__DOXYGEN__) + gpio_init(GPIOR, &config->PRData); +#endif +#if TIVA_HAS_GPIOS || defined(__DOXYGEN__) + gpio_init(GPIOS, &config->PSData); +#endif +#if TIVA_HAS_GPIOT || defined(__DOXYGEN__) + gpio_init(GPIOT, &config->PTData); +#endif +#if PAL_USE_CALLBACKS || PAL_USE_WAIT + gpio_irq_enable(); +#endif +} + +/** + * @brief Pads mode setup. + * @details This function programs a pads group belonging to the same port + * with the specified mode. + * + * @param[in] port the port identifier + * @param[in] mask the group mask + * @param[in] mode the mode + * + * @notapi + */ +void _pal_lld_setgroupmode(ioportid_t port, ioportmask_t mask, iomode_t mode) +{ + uint32_t dir = (mode & PAL_TIVA_DIR_MASK) >> 0; + uint32_t afsel = (mode & PAL_TIVA_AFSEL_MASK) >> 1; + uint32_t dr2r = (mode & PAL_TIVA_DR2R_MASK) >> 2; + uint32_t dr4r = (mode & PAL_TIVA_DR4R_MASK) >> 3; + uint32_t dr8r = (mode & PAL_TIVA_DR8R_MASK) >> 4; + uint32_t odr = (mode & PAL_TIVA_ODR_MASK) >> 5; + uint32_t pur = (mode & PAL_TIVA_PUR_MASK) >> 6; + uint32_t pdr = (mode & PAL_TIVA_PDR_MASK) >> 7; + uint32_t slr = (mode & PAL_TIVA_SLR_MASK) >> 8; + uint32_t den = (mode & PAL_TIVA_DEN_MASK) >> 9; + uint32_t amsel = (mode & PAL_TIVA_AMSEL_MASK) >> 10; + uint32_t pctl = (mode & PAL_TIVA_PCTL_MASK) >> 11; + uint32_t bit = 0; + + while(TRUE) { + uint32_t pctl_mask = (7 << (4 * bit)); + uint32_t bit_mask = (1 << bit); + + if ((mask & 1) != 0) { + HWREG(port + GPIO_O_DIR) = (HWREG(port + GPIO_O_DIR) & ~bit_mask) | dir; + HWREG(port + GPIO_O_AFSEL) = (HWREG(port + GPIO_O_AFSEL) & ~bit_mask) | afsel; + HWREG(port + GPIO_O_DR2R) = (HWREG(port + GPIO_O_DR2R) & ~bit_mask) | dr2r; + HWREG(port + GPIO_O_DR4R) = (HWREG(port + GPIO_O_DR4R) & ~bit_mask) | dr4r; + HWREG(port + GPIO_O_DR8R) = (HWREG(port + GPIO_O_DR8R) & ~bit_mask) | dr8r; + HWREG(port + GPIO_O_ODR) = (HWREG(port + GPIO_O_ODR) & ~bit_mask) | odr; + HWREG(port + GPIO_O_PUR) = (HWREG(port + GPIO_O_PUR) & ~bit_mask) | pur; + HWREG(port + GPIO_O_PDR) = (HWREG(port + GPIO_O_PDR) & ~bit_mask) | pdr; + HWREG(port + GPIO_O_SLR) = (HWREG(port + GPIO_O_SLR) & ~bit_mask) | slr; + HWREG(port + GPIO_O_DEN) = (HWREG(port + GPIO_O_DEN) & ~bit_mask) | den; + HWREG(port + GPIO_O_AMSEL) = (HWREG(port + GPIO_O_AMSEL) & ~bit_mask) | amsel; + HWREG(port + GPIO_O_PCTL) = (HWREG(port + GPIO_O_PCTL) & ~pctl_mask) | pctl; + } + + mask >>= 1; + if (!mask) { + return; + } + + dir <<= 1; + afsel <<= 1; + dr2r <<= 1; + dr4r <<= 1; + dr8r <<= 1; + odr <<= 1; + pur <<= 1; + pdr <<= 1; + slr <<= 1; + den <<= 1; + amsel <<= 1; + pctl <<= 4; + + bit++; + } +} + +#if PAL_USE_CALLBACKS || PAL_USE_WAIT || defined(__DOXYGEN__) +/** + * @brief Pad event enable. + * @note Programming an unknown or unsupported mode is silently ignored. + * + * @param[in] port port identifier + * @param[in] pad pad number within the port + * @param[in] mode pad event mode + * + * @notapi + */ +void _pal_lld_enablepadevent(ioportid_t port, + iopadid_t pad, + ioeventmode_t mode) +{ + //uint8_t portidx; + uint32_t padmask; + + //portidx = (((uint32_t)port - (uint32_t)GPIOA) >> 12) & 0x1FU; + padmask = (1 << pad); + + /* Disable interrupt before changing edge configuration.*/ + HWREG(port + GPIO_O_IM) &= ~padmask; + + /* Configure pin to be edge-sensitive.*/ + HWREG(port + GPIO_O_IS) &= ~(1 << pad); + + /* Configure edges */ + switch(mode & PAL_EVENT_MODE_EDGES_MASK) { + case PAL_EVENT_MODE_BOTH_EDGES: + HWREG(port + GPIO_O_IBE) |= padmask; + break; + case PAL_EVENT_MODE_RISING_EDGE: + HWREG(port + GPIO_O_IBE) &= ~padmask; + HWREG(port + GPIO_O_IEV) &= ~padmask; + break; + case PAL_EVENT_MODE_FALLING_EDGE: + HWREG(port + GPIO_O_IBE) &= ~padmask; + HWREG(port + GPIO_O_IEV) |= padmask; + break; + default: + /* Interrupt is already disabled */ + break; + } + + if (mode & PAL_EVENT_MODE_EDGES_MASK) { + /* Enable interrupt for this pad */ + HWREG(port + GPIO_O_IM) |= padmask; + } +} + +/** + * @brief Pad event disable. + * @details This function disables previously programmed event callbacks. + * + * @param[in] port port identifier + * @param[in] pad pad number within the port + * + * @notapi + */ +void _pal_lld_disablepadevent(ioportid_t port, iopadid_t pad) +{ + uint8_t portidx; + uint8_t eventidx; + + portidx = (((uint32_t)port - (uint32_t)GPIOA) >> 12) & 0x1FU; + + eventidx = portidx * 8 + pad; + + HWREG(port + GPIO_O_IM) &= ~(1 << pad); + +#if PAL_USE_CALLBACKS || PAL_USE_WAIT + /* Callback cleared and/or thread reset.*/ + _pal_clear_event(eventidx); +#endif +} + +/** + * @brief Disables GPIO IRQ sources. + */ +void pal_lld_disable_irqs(void) +{ +#if TIVA_HAS_GPIOA + nvicDisableVector(TIVA_GPIOA_NUMBER); +#endif +#if TIVA_HAS_GPIOB + nvicDisableVector(TIVA_GPIOB_NUMBER); +#endif +#if TIVA_HAS_GPIOC + nvicDisableVector(TIVA_GPIOC_NUMBER); +#endif +#if TIVA_HAS_GPIOD + nvicDisableVector(TIVA_GPIOD_NUMBER); +#endif +#if TIVA_HAS_GPIOE + nvicDisableVector(TIVA_GPIOE_NUMBER); +#endif +#if TIVA_HAS_GPIOF + nvicDisableVector(TIVA_GPIOF_NUMBER); +#endif +#if TIVA_HAS_GPIOG + nvicDisableVector(TIVA_GPIOG_NUMBER); +#endif +#if TIVA_HAS_GPIOH + nvicDisableVector(TIVA_GPIOH_NUMBER); +#endif +#if TIVA_HAS_GPIOJ + nvicDisableVector(TIVA_GPIOJ_NUMBER); +#endif +#if TIVA_HAS_GPIOK + nvicDisableVector(TIVA_GPIOK_NUMBER); +#endif +#if TIVA_HAS_GPIOL + nvicDisableVector(TIVA_GPIOL_NUMBER); +#endif +#if TIVA_HAS_GPIOM + nvicDisableVector(TIVA_GPIOM_NUMBER); +#endif +#if TIVA_HAS_GPION + nvicDisableVector(TIVA_GPION_NUMBER); +#endif +#if TIVA_HAS_GPIOP + nvicDisableVector(TIVA_GPIOP0_NUMBER); + nvicDisableVector(TIVA_GPIOP1_NUMBER); + nvicDisableVector(TIVA_GPIOP2_NUMBER); + nvicDisableVector(TIVA_GPIOP3_NUMBER); + nvicDisableVector(TIVA_GPIOP4_NUMBER); + nvicDisableVector(TIVA_GPIOP5_NUMBER); + nvicDisableVector(TIVA_GPIOP6_NUMBER); + nvicDisableVector(TIVA_GPIOP7_NUMBER); +#endif +#if TIVA_HAS_GPIOQ + nvicDisableVector(TIVA_GPIOQ0_NUMBER); + nvicDisableVector(TIVA_GPIOQ1_NUMBER); + nvicDisableVector(TIVA_GPIOQ2_NUMBER); + nvicDisableVector(TIVA_GPIOQ3_NUMBER); + nvicDisableVector(TIVA_GPIOQ4_NUMBER); + nvicDisableVector(TIVA_GPIOQ5_NUMBER); + nvicDisableVector(TIVA_GPIOQ6_NUMBER); + nvicDisableVector(TIVA_GPIOQ7_NUMBER); +#endif +#if TIVA_HAS_GPIOR + nvicDisableVector(TIVA_GPIOR_NUMBER); +#endif +#if TIVA_HAS_GPIOS + nvicDisableVector(TIVA_GPIOS_NUMBER); +#endif +#if TIVA_HAS_GPIOT + nvicDisableVector(TIVA_GPIOT_NUMBER); +#endif +} +#endif /* PAL_USE_CALLBACKS || PAL_USE_WAIT */ + +#endif /* HAL_USE_PAL */ + +/** + * @} + */ diff --git a/os/hal/ports/TIVA/LLD/GPIO/hal_pal_lld.h b/os/hal/ports/TIVA/LLD/GPIO/hal_pal_lld.h new file mode 100644 index 0000000..e884a92 --- /dev/null +++ b/os/hal/ports/TIVA/LLD/GPIO/hal_pal_lld.h @@ -0,0 +1,1141 @@ +/* + Copyright (C) 2014..2017 Marco Veeneman + + Licensed 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. +*/ + +/** + * @file GPIO/hal_pal_lld.h + * @brief TM4C123x/TM4C129x PAL subsystem low level driver header. + * + * @addtogroup PAL + * @{ + */ + +#ifndef HAL_PAL_LLD_H +#define HAL_PAL_LLD_H + +#if HAL_USE_PAL || defined(__DOXYGEN__) + +/*===========================================================================*/ +/* Unsupported modes and specific modes */ +/*===========================================================================*/ + +#undef PAL_MODE_RESET +#undef PAL_MODE_UNCONNECTED +#undef PAL_MODE_INPUT +#undef PAL_MODE_INPUT_PULLUP +#undef PAL_MODE_INPUT_PULLDOWN +#undef PAL_MODE_INPUT_ANALOG +#undef PAL_MODE_OUTPUT_PUSHPULL +#undef PAL_MODE_OUTPUT_OPENDRAIN + +/** + * @name TIVA-specific I/O mode flags + * @{ + */ +#define PAL_TIVA_DIR_MASK (1 << 0) +#define PAL_TIVA_DIR_INPUT (0 << 0) +#define PAL_TIVA_DIR_OUTPUT (1 << 0) + +#define PAL_TIVA_AFSEL_MASK (1 << 1) +#define PAL_TIVA_AFSEL_GPIO (0 << 1) +#define PAL_TIVA_AFSEL_ALTERNATE (1 << 1) + +#define PAL_TIVA_DR2R_MASK (1 << 2) +#define PAL_TIVA_DR2R_DISABLE (0 << 2) +#define PAL_TIVA_DR2R_ENABLE (1 << 2) + +#define PAL_TIVA_DR4R_MASK (1 << 3) +#define PAL_TIVA_DR4R_DISABLE (0 << 3) +#define PAL_TIVA_DR4R_ENABLE (1 << 3) + +#define PAL_TIVA_DR8R_MASK (1 << 4) +#define PAL_TIVA_DR8R_DISABLE (0 << 4) +#define PAL_TIVA_DR8R_ENABLE (1 << 4) + +#define PAL_TIVA_ODR_MASK (1 << 5) +#define PAL_TIVA_ODR_PUSHPULL (0 << 5) +#define PAL_TIVA_ODR_OPENDRAIN (1 << 5) + +#define PAL_TIVA_PUR_MASK (1 << 6) +#define PAL_TIVA_PUR_DISABLE (0 << 6) +#define PAL_TIVA_PUR_ENABLE (1 << 6) + +#define PAL_TIVA_PDR_MASK (1 << 7) +#define PAL_TIVA_PDR_DISABLE (0 << 7) +#define PAL_TIVA_PDR_ENABLE (1 << 7) + +#define PAL_TIVA_SLR_MASK (1 << 8) +#define PAL_TIVA_SLR_DISABLE (0 << 8) +#define PAL_TIVA_SLR_ENABLE (1 << 8) + +#define PAL_TIVA_DEN_MASK (1 << 9) +#define PAL_TIVA_DEN_DISABLE (0 << 9) +#define PAL_TIVA_DEN_ENABLE (1 << 9) + +#define PAL_TIVA_AMSEL_MASK (1 << 10) +#define PAL_TIVA_AMSEL_DISABLE (0 << 10) +#define PAL_TIVA_AMSEL_ENABLE (1 << 10) + +#define PAL_TIVA_PCTL_MASK (7 << 11) +#define PAL_TIVA_PCTL(n) ((n) << 11) + +/** + * @brief Alternate function. + * + * @param[in] n alternate function selector + */ +#define PAL_MODE_ALTERNATE(n) (PAL_TIVA_AFSEL_ALTERNATE | \ + PAL_TIVA_PCTL(n)) +/** @} */ + +/** + * @name Standard I/O mode flags + * @{ + */ +/** + * @brief This mode is implemented as input. + */ +#define PAL_MODE_RESET PAL_MODE_INPUT + +/** + * @brief This mode is implemented as input with pull-up. + */ +#define PAL_MODE_UNCONNECTED PAL_MODE_INPUT_PULLUP + +/** + * @brief Regular input high-Z pad. + */ +#define PAL_MODE_INPUT (PAL_TIVA_DEN_ENABLE | \ + PAL_TIVA_DIR_INPUT) + +/** + * @brief Input pad with weak pull up resistor. + */ +#define PAL_MODE_INPUT_PULLUP (PAL_TIVA_DIR_INPUT | \ + PAL_TIVA_PUR_ENABLE | \ + PAL_TIVA_DEN_ENABLE) + +/** + * @brief Input pad with weak pull down resistor. + */ +#define PAL_MODE_INPUT_PULLDOWN (PAL_TIVA_DIR_INPUT | \ + PAL_TIVA_PDR_ENABLE | \ + PAL_TIVA_DEN_ENABLE) + +/** + * @brief Analog input mode. + */ +#define PAL_MODE_INPUT_ANALOG (PAL_TIVA_DEN_DISABLE | \ + PAL_TIVA_AMSEL_ENABLE) + +/** + * @brief Push-pull output pad. + */ +#define PAL_MODE_OUTPUT_PUSHPULL (PAL_TIVA_DIR_OUTPUT | \ + PAL_TIVA_DR2R_ENABLE | \ + PAL_TIVA_ODR_PUSHPULL | \ + PAL_TIVA_DEN_ENABLE) + +/** + * @brief Open-drain output pad. + */ +#define PAL_MODE_OUTPUT_OPENDRAIN (PAL_TIVA_DIR_OUTPUT | \ + PAL_TIVA_DR2R_ENABLE | \ + PAL_TIVA_ODR_OPENDRAIN | \ + PAL_TIVA_DEN_ENABLE) +/** @} */ + +/*===========================================================================*/ +/* I/O Ports Types and constants. */ +/*===========================================================================*/ + +/** + * @name Port related definitions + * @{ + */ +/** + * @brief Width, in bits, of an I/O port. + */ +#define PAL_IOPORTS_WIDTH 8 + +/** + * @brief Whole port mask. + * @brief This macro specifies all the valid bits into a port. + */ +#define PAL_WHOLE_PORT ((ioportmask_t)0xFF) +/** @} */ + +/** + * @name Line handling macros + * @{ + */ +/** + * @brief Forms a line identifier. + * @details A port/pad pair are encoded into an @p ioline_t type. The encoding + * of this type is platform-dependent. + * @note In this driver the pad number is encoded in the lower 4 bits of + * the GPIO address which are guaranteed to be zero. + */ +#define PAL_LINE(port, pad) \ + ((ioline_t)((uint32_t)(port)) | ((uint32_t)(pad))) + +/** + * @brief Decodes a port identifier from a line identifier. + */ +#define PAL_PORT(line) \ + ((ioportid_t)(((uint32_t)(line)) & 0xFFFFFFF0U)) + +/** + * @brief Decodes a pad identifier from a line identifier. + */ +#define PAL_PAD(line) \ + ((uint32_t)((uint32_t)(line) & 0x0000000FU)) + +/** + * @brief Value identifying an invalid line. + */ +#define PAL_NOLINE 0U +/** @} */ + +/** + * @brief GPIO port setup info. + */ +typedef struct +{ + /** @brief Initial value for DATA register.*/ + uint32_t data; + /** @brief Initial value for DIR register.*/ + uint32_t dir; + /** @brief Initial value for AFSEL register.*/ + uint32_t afsel; + /** @brief Initial value for DR2R register.*/ + uint32_t dr2r; + /** @brief Initial value for DR4R register.*/ + uint32_t dr4r; + /** @brief Initial value for DR8R register.*/ + uint32_t dr8r; + /** @brief Initial value for ODR register.*/ + uint32_t odr; + /** @brief Initial value for PUR register.*/ + uint32_t pur; + /** @brief Initial value for PDR register.*/ + uint32_t pdr; + /** @brief Initial value for SLR register.*/ + uint32_t slr; + /** @brief Initial value for DEN register.*/ + uint32_t den; + /** @brief Initial value for AMSEL register.*/ + uint32_t amsel; + /** @brief Initial value for PCTL register.*/ + uint32_t pctl; +} tiva_gpio_setup_t; + +/** + * @brief Tiva GPIO static initializer. + * @details An instance of this structure must be passed to @p palInit() at + * system startup time in order to initialized the digital I/O + * subsystem. This represents only the initial setup, specific pads + * or whole ports can be reprogrammed at later time. + */ +typedef struct +{ + /** @brief GPIO port A setup data.*/ + tiva_gpio_setup_t PAData; + /** @brief GPIO port B setup data.*/ + tiva_gpio_setup_t PBData; + /** @brief GPIO port C setup data.*/ + tiva_gpio_setup_t PCData; + /** @brief GPIO port D setup data.*/ + tiva_gpio_setup_t PDData; + /** @brief GPIO port E setup data.*/ + tiva_gpio_setup_t PEData; + /** @brief GPIO port F setup data.*/ + tiva_gpio_setup_t PFData; +#if TIVA_HAS_GPIOG || defined(__DOXYGEN__) + /** @brief GPIO port G setup data.*/ + tiva_gpio_setup_t PGData; +#endif +#if TIVA_HAS_GPIOH || defined(__DOXYGEN__) + /** @brief GPIO port H setup data.*/ + tiva_gpio_setup_t PHData; +#endif +#if TIVA_HAS_GPIOJ || defined(__DOXYGEN__) + /** @brief GPIO port J setup data.*/ + tiva_gpio_setup_t PJData; +#endif +#if TIVA_HAS_GPIOK || defined(__DOXYGEN__) + /** @brief GPIO port K setup data.*/ + tiva_gpio_setup_t PKData; +#endif +#if TIVA_HAS_GPIOL || defined(__DOXYGEN__) + /** @brief GPIO port L setup data.*/ + tiva_gpio_setup_t PLData; +#endif +#if TIVA_HAS_GPIOM || defined(__DOXYGEN__) + /** @brief GPIO port M setup data.*/ + tiva_gpio_setup_t PMData; +#endif +#if TIVA_HAS_GPION || defined(__DOXYGEN__) + /** @brief GPIO port N setup data.*/ + tiva_gpio_setup_t PNData; +#endif +#if TIVA_HAS_GPIOP || defined(__DOXYGEN__) + /** @brief GPIO port P setup data.*/ + tiva_gpio_setup_t PPData; +#endif +#if TIVA_HAS_GPIOQ || defined(__DOXYGEN__) + /** @brief GPIO port Q setup data.*/ + tiva_gpio_setup_t PQData; +#endif +#if TIVA_HAS_GPIOR || defined(__DOXYGEN__) + /** @brief GPIO port R setup data.*/ + tiva_gpio_setup_t PRData; +#endif +#if TIVA_HAS_GPIOS || defined(__DOXYGEN__) + /** @brief GPIO port S setup data.*/ + tiva_gpio_setup_t PSData; +#endif +#if TIVA_HAS_GPIOT || defined(__DOXYGEN__) + /** @brief GPIO port T setup data.*/ + tiva_gpio_setup_t PTData; +#endif +} PALConfig; + +/** + * @brief Digital I/O port sized unsigned type. + */ +typedef uint32_t ioportmask_t; + +/** + * @brief Digital I/O modes. + */ +typedef uint32_t iomode_t; + +/** + * @brief Type of an I/O line. + */ +typedef uint32_t ioline_t; + +/** + * @brief Type of an event mode. + */ +typedef uint32_t ioeventmode_t; + +/** + * @brief Port Identifier. + */ +typedef uint32_t ioportid_t; + +/** + * @brief Type of an pad identifier. + */ +typedef uint32_t iopadid_t; + +/*===========================================================================*/ +/* Driver pre-compile time settings. */ +/*===========================================================================*/ + +/** + * @name Configuration options + * @{ + */ +/** + * @brief GPIOA interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOA_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOA_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOB interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOB_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOB_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOC interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOC_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOC_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOD interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOD_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOD_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOE interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOE_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOE_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOF interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOF_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOF_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOG interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOG_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOG_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOH interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOH_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOH_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOJ interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOJ_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOJ_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOK interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOK_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOK_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOL interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOL_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOL_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOM interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOM_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOM_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPION interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPION_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPION_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOP0 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOP0_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOP0_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOP1 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOP1_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOP1_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOP2 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOP2_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOP2_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOP3 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOP3_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOP3_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOP4 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOP4_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOP4_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOP5 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOP5_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOP5_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOP6 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOP6_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOP6_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOP7 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOP7_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOP7_IRQ_PRIORITY 3 +#endif +/** @} */ + +/** + * @brief GPIOQ0 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOQ0_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOQ0_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOQ1 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOQ1_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOQ1_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOQ2 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOQ2_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOQ2_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOQ3 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOQ3_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOQ3_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOQ4 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOQ4_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOQ4_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOQ5 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOQ5_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOQ5_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOQ6 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOQ6_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOQ6_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOQ7 interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOQ7_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOQ7_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOR interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOR_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOR_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOS interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOS_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOS_IRQ_PRIORITY 3 +#endif + +/** + * @brief GPIOT interrupt priority level setting. + */ +#if !defined(TIVA_PAL_GPIOT_IRQ_PRIORITY) || defined(__DOXYGEN__) +#define TIVA_PAL_GPIOT_IRQ_PRIORITY 3 +#endif +/** @} */ + +/*===========================================================================*/ +/* Derived constants and error checks. */ +/*===========================================================================*/ + +#define GPIOA GPIO_PORTA_AHB_BASE +#define GPIOB GPIO_PORTB_AHB_BASE +#define GPIOC GPIO_PORTC_AHB_BASE +#define GPIOD GPIO_PORTD_AHB_BASE +#define GPIOE GPIO_PORTE_AHB_BASE +#define GPIOF GPIO_PORTF_AHB_BASE +#define GPIOG GPIO_PORTG_AHB_BASE +#define GPIOH GPIO_PORTH_AHB_BASE +#define GPIOJ GPIO_PORTJ_AHB_BASE +#define GPIOK GPIO_PORTK_BASE +#define GPIOL GPIO_PORTL_BASE +#define GPIOM GPIO_PORTM_BASE +#define GPION GPIO_PORTN_BASE +#define GPIOP GPIO_PORTP_BASE +#define GPIOQ GPIO_PORTQ_BASE +#define GPIOR GPIO_PORTR_BASE +#define GPIOS GPIO_PORTS_BASE +#define GPIOT GPIO_PORTT_BASE + +#if TIVA_HAS_GPIOA && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOA_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOA" +#endif + +#if TIVA_HAS_GPIOB && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOB_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOB" +#endif + +#if TIVA_HAS_GPIOC && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOC_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOC" +#endif + +#if TIVA_HAS_GPIOD && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOD_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOD" +#endif + +#if TIVA_HAS_GPIOE && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOE_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOE" +#endif + +#if TIVA_HAS_GPIOF && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOF_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOF" +#endif + +#if TIVA_HAS_GPIOG && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOG_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOG" +#endif + +#if TIVA_HAS_GPIOH && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOH_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOH" +#endif + +#if TIVA_HAS_GPIOJ && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOJ_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOJ" +#endif + +#if TIVA_HAS_GPIOK && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOK_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOK" +#endif + +#if TIVA_HAS_GPIOL && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOL_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOL" +#endif + +#if TIVA_HAS_GPIOM && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOM_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOM" +#endif + +#if TIVA_HAS_GPION && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPION_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPION" +#endif + +#if TIVA_HAS_GPIOP && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOP0_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOP0" +#endif + +#if TIVA_HAS_GPIOP && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOP1_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOP1" +#endif + +#if TIVA_HAS_GPIOP && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOP2_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOP2" +#endif + +#if TIVA_HAS_GPIOP && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOP3_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOP3" +#endif + +#if TIVA_HAS_GPIOP && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOP4_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOP4" +#endif + +#if TIVA_HAS_GPIOP && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOP5_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOP5" +#endif + +#if TIVA_HAS_GPIOP && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOP6_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOP6" +#endif + +#if TIVA_HAS_GPIOP && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOP7_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOP7" +#endif + +#if TIVA_HAS_GPIOQ && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOQ0_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOQ0" +#endif + +#if TIVA_HAS_GPIOQ && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOQ1_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOQ1" +#endif + +#if TIVA_HAS_GPIOQ && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOQ2_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOQ2" +#endif + +#if TIVA_HAS_GPIOQ && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOQ3_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOQ3" +#endif + +#if TIVA_HAS_GPIOQ && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOQ4_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOQ4" +#endif + +#if TIVA_HAS_GPIOQ && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOQ5_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOQ5" +#endif + +#if TIVA_HAS_GPIOQ && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOQ6_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOQ6" +#endif + +#if TIVA_HAS_GPIOQ && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOQ7_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOQ7" +#endif + +#if TIVA_HAS_GPIOR && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOR_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOR" +#endif + +#if TIVA_HAS_GPIOS && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOS_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOS" +#endif + +#if TIVA_HAS_GPIOT && \ + !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_PAL_GPIOT_IRQ_PRIORITY) +#error "Invalid IRQ priority assigned to GPIOT" +#endif + +/*===========================================================================*/ +/* I/O Ports Identifiers. */ +/*===========================================================================*/ + +/** + * @brief GPIO port A identifier. + */ +#define IOPORT1 GPIOA + +/** + * @brief GPIO port B identifier. + */ +#define IOPORT2 GPIOB + +/** + * @brief GPIO port C identifier. + */ +#define IOPORT3 GPIOC + +/** + * @brief GPIO port D identifier. + */ +#define IOPORT4 GPIOD + +/** + * @brief GPIO port E identifier. + */ +#define IOPORT5 GPIOE + +/** + * @brief GPIO port F identifier. + */ +#define IOPORT6 GPIOF + +/** + * @brief GPIO port G identifier. + */ +#if TIVA_HAS_GPIOG || defined(__DOXYGEN__) +#define IOPORT7 GPIOG +#endif + +/** + * @brief GPIO port H identifier. + */ +#if TIVA_HAS_GPIOH || defined(__DOXYGEN__) +#define IOPORT8 GPIOH +#endif + +/** + * @brief GPIO port J identifier. + */ +#if TIVA_HAS_GPIOJ || defined(__DOXYGEN__) +#define IOPORT9 GPIOJ +#endif + +/** + * @brief GPIO port K identifier. + */ +#if TIVA_HAS_GPIOK || defined(__DOXYGEN__) +#define IOPORT10 GPIOK +#endif + +/** + * @brief GPIO port L identifier. + */ +#if TIVA_HAS_GPIOL || defined(__DOXYGEN__) +#define IOPORT11 GPIOL +#endif + +/** + * @brief GPIO port M identifier. + */ +#if TIVA_HAS_GPIOM || defined(__DOXYGEN__) +#define IOPORT12 GPIOM +#endif + +/** + * @brief GPIO port N identifier. + */ +#if TIVA_HAS_GPION || defined(__DOXYGEN__) +#define IOPORT13 GPION +#endif + +/** + * @brief GPIO port P identifier. + */ +#if TIVA_HAS_GPIOP || defined(__DOXYGEN__) +#define IOPORT14 GPIOP +#endif + +/** + * @brief GPIO port Q identifier. + */ +#if TIVA_HAS_GPIOQ || defined(__DOXYGEN__) +#define IOPORT15 GPIOQ +#endif + +/** + * @brief GPIO port R identifier. + */ +#if TIVA_HAS_GPIOR || defined(__DOXYGEN__) +#define IOPORT16 GPIOR +#endif + +/** + * @brief GPIO port S identifier. + */ +#if TIVA_HAS_GPIOS || defined(__DOXYGEN__) +#define IOPORT17 GPIOS +#endif + +/** + * @brief GPIO port T identifier. + */ +#if TIVA_HAS_GPIOT || defined(__DOXYGEN__) +#define IOPORT18 GPIOT +#endif + +/*===========================================================================*/ +/* Implementation, some of the following macros could be implemented as */ +/* functions, if so please put them in pal_lld.c. */ +/*===========================================================================*/ + +/** + * @brief Low level PAL subsystem initialization. + * + * @param[in] config architecture-dependent ports configuration + * + * @notapi + */ +#define pal_lld_init(config) _pal_lld_init(config) + +/** + * @brief Reads the physical I/O port states. + * + * @param[in] port port identifier + * @return The port bits. + * + * @notapi + */ +#define pal_lld_readport(port) (HWREG((port) + GPIO_O_DATA + (0xff << 2))) + +/** + * @brief Reads the output latch. + * @details The purpose of this function is to read back the latched output + * value. + * + * @param[in] port port identifier + * @return The latched logical states. + * + * @notapi + */ +#define pal_lld_readlatch(port) pal_lld_readport(port) + +/** + * @brief Writes a bits mask on a I/O port. + * + * @param[in] port port identifier + * @param[in] bits bits to be written on the specified port + * + * @notapi + */ +#define pal_lld_writeport(port, bits) (HWREG((port) + GPIO_O_DATA + (0xff << 2)) = (bits)) + +/** + * @brief Sets a bits mask on a I/O port. + * @note The @ref PAL provides a default software implementation of this + * functionality, implement this function if can optimize it by using + * special hardware functionalities or special coding. + * + * @param[in] port port identifier + * @param[in] bits bits to be ORed on the specified port + * + * @notapi + */ +#define pal_lld_setport(port, bits) (HWREG((port) + (GPIO_O_DATA + (bits << 2))) = 0xFF) + +/** + * @brief Clears a bits mask on a I/O port. + * @note The @ref PAL provides a default software implementation of this + * functionality, implement this function if can optimize it by using + * special hardware functionalities or special coding. + * + * @param[in] port port identifier + * @param[in] bits bits to be cleared on the specified port + * + * @notapi + */ +#define pal_lld_clearport(port, bits) (HWREG((port) + (GPIO_O_DATA + (bits << 2))) = 0) + +/** + * @brief Reads a group of bits. + * @note The @ref PAL provides a default software implementation of this + * functionality, implement this function if can optimize it by using + * special hardware functionalities or special coding. + * + * @param[in] port port identifier + * @param[in] mask group mask + * @param[in] offset group bit offset within the port + * @return The group logical states. + * + * @notapi + */ +#define pal_lld_readgroup(port, mask, offset) \ + (HWREG((port) + (GPIO_O_DATA + (((mask) << (offset)) << 2)))) + +/** + * @brief Writes a group of bits. + * @note The @ref PAL provides a default software implementation of this + * functionality, implement this function if can optimize it by using + * special hardware functionalities or special coding. + * + * @param[in] port port identifier + * @param[in] mask group mask + * @param[in] offset group bit offset within the port + * @param[in] bits bits to be written. Values exceeding the group width + * are masked. + * + * @notapi + */ +#define pal_lld_writegroup(port, mask, offset, bits) \ + (HWREG((port) + (GPIO_O_DATA + (((mask) << (offset)) << 2))) = (bits)) + +/** + * @brief Pads group mode setup. + * @details This function programs a pads group belonging to the same port + * with the specified mode. + * @note Programming an unknown or unsupported mode is silently ignored. + * + * @param[in] port port identifier + * @param[in] mask group mask + * @param[in] offset group bit offset within the port + * @param[in] mode group mode + * + * @notapi + */ +#define pal_lld_setgroupmode(port, mask, offset, mode) \ + _pal_lld_setgroupmode(port, mask << offset, mode) + +/** + * @brief Reads a logical state from an I/O pad. + * @note The @ref PAL provides a default software implementation of this + * functionality, implement this function if can optimize it by using + * special hardware functionalities or special coding. + * + * @param[in] port port identifier + * @param[in] pad pad number within the port + * @return The logical state. + * @retval PAL_LOW low logical state. + * @retval PAL_HIGH high logical state. + * + * @notapi + */ +#define pal_lld_readpad(port, pad) (HWREG((port) + (GPIO_O_DATA + ((1 << (pad)) << 2)))) + +/** + * @brief Writes a logical state on an output pad. + * @note This function is not meant to be invoked directly by the + * application code. + * @note The @ref PAL provides a default software implementation of this + * functionality, implement this function if can optimize it by using + * special hardware functionalities or special coding. + * + * @param[in] port port identifier + * @param[in] pad pad number within the port + * @param[in] bit logical value, the value must be @p PAL_LOW or + * @p PAL_HIGH + * + * @notapi + */ +#define pal_lld_writepad(port, pad, bit) \ + (HWREG((port) + (GPIO_O_DATA + ((1 << (pad)) << 2))) = 1 << (bit)) + +/** + * @brief Sets a pad logical state to @p PAL_HIGH. + * @note The @ref PAL provides a default software implementation of this + * functionality, implement this function if can optimize it by using + * special hardware functionalities or special coding. + * + * @param[in] port port identifier + * @param[in] pad pad number within the port + * + * @notapi + */ +#define pal_lld_setpad(port, pad) \ + (HWREG((port) + (GPIO_O_DATA + ((1 << (pad)) << 2))) = 1 << (pad)) + +/** + * @brief Clears a pad logical state to @p PAL_LOW. + * @note The @ref PAL provides a default software implementation of this + * functionality, implement this function if can optimize it by using + * special hardware functionalities or special coding. + * + * @param[in] port port identifier + * @param[in] pad pad number within the port + * + * @notapi + */ +#define pal_lld_clearpad(port, pad) \ + (HWREG((port) + (GPIO_O_DATA + ((1 << (pad)) << 2))) = 0) + +/** + * @brief Pad event enable. + * @note Programming an unknown or unsupported mode is silently ignored. + * + * @param[in] port port identifier + * @param[in] pad pad number within the port + * @param[in] mode pad event mode + * + * @notapi + */ +#define pal_lld_enablepadevent(port, pad, mode) \ + _pal_lld_enablepadevent(port, pad, mode) + +/** + * @brief Pad event disable. + * @details This function disables previously programmed event callbacks. + * + * @param[in] port port identifier + * @param[in] pad pad number within the port + * + * @notapi + */ +#define pal_lld_disablepadevent(port, pad) \ + _pal_lld_disablepadevent(port, pad) + +/** + * @brief Returns a PAL event structure associated to a pad. + * + * @param[in] port port identifier + * @param[in] pad pad number within the port + * + * @notapi + */ +#define pal_lld_get_pad_event(port, pad) \ + &_pal_events[((((((uint32_t)port - (uint32_t)GPIOA) >> 12) & 0x1FU) * 8) + pad)]; + +/** + * @brief Returns a PAL event structure associated to a line. + * + * @param[in] line line identifier + * + * @notapi + */ +#define pal_lld_get_line_event(line) \ + &_pal_events[((((((uint32_t)PAL_PORT(line) - (uint32_t)GPIOA) >> 12) & 0x1FU) * 8) + PAL_PAD(line))] + +/*===========================================================================*/ +/* External declarations. */ +/*===========================================================================*/ + +#if !defined(__DOXYGEN__) +extern const PALConfig pal_default_config; +extern palevent_t _pal_events[TIVA_GPIO_PINS]; +#endif + +#ifdef __cplusplus +extern "C" { +#endif + void _pal_lld_init(const PALConfig *config); + void _pal_lld_setgroupmode(ioportid_t port, + ioportmask_t mask, + iomode_t mode); +#if PAL_USE_CALLBACKS || PAL_USE_WAIT + void _pal_lld_enablepadevent(ioportid_t port, + iopadid_t pad, + ioeventmode_t mode); + void _pal_lld_disablepadevent(ioportid_t port, iopadid_t pad); + void pal_lld_disable_irqs(void); +#endif +#ifdef __cplusplus +} +#endif + +#endif /* HAL_USE_PAL */ + +#endif /* HAL_PAL_LLD_H */ + +/** @} */ |