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Diffstat (limited to 'os/hal/ports/TIVA/LLD/pal_lld.c')
-rw-r--r--os/hal/ports/TIVA/LLD/pal_lld.c313
1 files changed, 313 insertions, 0 deletions
diff --git a/os/hal/ports/TIVA/LLD/pal_lld.c b/os/hal/ports/TIVA/LLD/pal_lld.c
new file mode 100644
index 0000000..657f982
--- /dev/null
+++ b/os/hal/ports/TIVA/LLD/pal_lld.c
@@ -0,0 +1,313 @@
+/*
+ Copyright (C) 2014 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 TIVA/LLD/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. */
+/*===========================================================================*/
+
+#define RCGCGPIOA (1 << 0)
+#define RCGCGPIOB (1 << 1)
+#define RCGCGPIOC (1 << 2)
+#define RCGCGPIOD (1 << 3)
+#define RCGCGPIOE (1 << 4)
+#define RCGCGPIOF (1 << 5)
+
+#if TIVA_HAS_GPIOG || defined(__DOXYGEN__)
+#define RCGCGPIOG (1 << 6)
+#else
+#define RCGCGPIOG 0
+#endif
+
+#if TIVA_HAS_GPIOH || defined(__DOXYGEN__)
+#define RCGCGPIOH (1 << 7)
+#else
+#define RCGCGPIOH 0
+#endif
+
+#if TIVA_HAS_GPIOJ || defined(__DOXYGEN__)
+#define RCGCGPIOJ (1 << 8)
+#else
+#define RCGCGPIOJ 0
+#endif
+
+#if TIVA_HAS_GPIOK || defined(__DOXYGEN__)
+#define RCGCGPIOK (1 << 9)
+#else
+#define RCGCGPIOK 0
+#endif
+
+#if TIVA_HAS_GPIOL || defined(__DOXYGEN__)
+#define RCGCGPIOL (1 << 10)
+#else
+#define RCGCGPIOL 0
+#endif
+
+#if TIVA_HAS_GPIOM || defined(__DOXYGEN__)
+#define RCGCGPIOM (1 << 11)
+#else
+#define RCGCGPIOM 0
+#endif
+
+#if TIVA_HAS_GPION || defined(__DOXYGEN__)
+#define RCGCGPION (1 << 12)
+#else
+#define RCGCGPION 0
+#endif
+
+#if TIVA_HAS_GPIOP || defined(__DOXYGEN__)
+#define RCGCGPIOP (1 << 13)
+#else
+#define RCGCGPIOP 0
+#endif
+
+#if TIVA_HAS_GPIOQ || defined(__DOXYGEN__)
+#define RCGCGPIOQ (1 << 14)
+#else
+#define RCGCGPIOQ 0
+#endif
+
+#if TIVA_HAS_GPIOR || defined(__DOXYGEN__)
+#define RCGCGPIOR (1 << 15)
+#else
+#define RCGCGPIOR 0
+#endif
+
+#if TIVA_HAS_GPIOS || defined(__DOXYGEN__)
+#define RCGCGPIOS (1 << 16)
+#else
+#define RCGCGPIOS 0
+#endif
+
+#if TIVA_HAS_GPIOT || defined(__DOXYGEN__)
+#define RCGCGPIOT (1 << 17)
+#else
+#define RCGCGPIOT 0
+#endif
+
+#define RCGCGPIO_VALUE (RCGCGPIOA | RCGCGPIOB | RCGCGPIOC | RCGCGPIOD | \
+ RCGCGPIOE | RCGCGPIOF | RCGCGPIOG | RCGCGPIOH | \
+ RCGCGPIOJ | RCGCGPIOK | RCGCGPIOL | RCGCGPIOM | \
+ RCGCGPION | RCGCGPIOP | RCGCGPIOQ | RCGCGPIOR | \
+ RCGCGPIOS | RCGCGPIOT)
+
+/* GPIO lock password.*/
+#define TIVA_GPIO_LOCK_PWD 0x4C4F434B
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+void gpio_init (GPIO_TypeDef *gpiop, const tiva_gpio_setup_t *config)
+{
+ gpiop->DATA = config->data;
+ gpiop->DIR = config->dir;
+ gpiop->AFSEL = config->afsel;
+ gpiop->DR2R = config->dr2r;
+ gpiop->DR4R = config->dr4r;
+ gpiop->DR8R = config->dr8r;
+ gpiop->ODR = config->odr;
+ gpiop->PUR = config->pur;
+ gpiop->PDR = config->pdr;
+ gpiop->SLR = config->slr;
+ gpiop->DEN = config->den;
+ gpiop->AMSEL = config->amsel;
+ gpiop->PCTL = config->pctl;
+}
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* 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)
+{
+ SYSCTL->RCGCGPIO = RCGCGPIO_VALUE;
+
+ __NOP();
+ __NOP();
+ __NOP();
+
+ gpio_init(GPIOA, &config->PAData);
+
+ gpio_init(GPIOB, &config->PBData);
+
+ GPIOC->LOCK = TIVA_GPIO_LOCK_PWD;
+ GPIOC->CR = 0x01;
+ gpio_init(GPIOC, &config->PCData);
+ GPIOC->LOCK = 0;
+
+ gpio_init(GPIOD, &config->PDData);
+
+ gpio_init(GPIOE, &config->PEData);
+
+ GPIOF->LOCK = TIVA_GPIO_LOCK_PWD;
+ GPIOF->CR = 0x01;
+ gpio_init(GPIOF, &config->PFData);
+ GPIOF->LOCK = 0;
+
+#if TIVA_HAS_GPIOG || defined(__DOXYGEN__)
+ gpio_init(GPIOG, &config->PGData);
+#endif /* TIVA_HAS_GPIOG.*/
+
+#if TIVA_HAS_GPIOH || defined(__DOXYGEN__)
+ gpio_init(GPIOH, &config->PHData);
+#endif /* TIVA_HAS_GPIOH.*/
+
+#if TIVA_HAS_GPIOJ || defined(__DOXYGEN__)
+ gpio_init(GPIOJ, &config->PJData);
+#endif /* TIVA_HAS_GPIOJ.*/
+
+#if TIVA_HAS_GPIOK || defined(__DOXYGEN__)
+ gpio_init(GPIOK, &config->PKData);
+#endif /* TIVA_HAS_GPIOK.*/
+
+#if TIVA_HAS_GPIOL || defined(__DOXYGEN__)
+ gpio_init(GPIOL, &config->PLData);
+#endif /* TIVA_HAS_GPIOL.*/
+
+#if TIVA_HAS_GPIOM || defined(__DOXYGEN__)
+ gpio_init(GPIOM, &config->PMData);
+#endif /* TIVA_HAS_GPIOM.*/
+
+#if TIVA_HAS_GPION || defined(__DOXYGEN__)
+ gpio_init(GPION, &config->PNData);
+#endif /* TIVA_HAS_GPION.*/
+
+#if TIVA_HAS_GPIOP || defined(__DOXYGEN__)
+ gpio_init(GPIOP, &config->PPData);
+#endif /* TIVA_HAS_GPIOP.*/
+
+#if TIVA_HAS_GPIOQ || defined(__DOXYGEN__)
+ gpio_init(GPIOQ, &config->PQData);
+#endif /* TIVA_HAS_GPIOQ.*/
+
+#if TIVA_HAS_GPIOR || defined(__DOXYGEN__)
+ gpio_init(GPIOR, &config->PRData);
+#endif /* TIVA_HAS_GPIOR.*/
+
+#if TIVA_HAS_GPIOS || defined(__DOXYGEN__)
+ gpio_init(GPIOS, &config->PSData);
+#endif /* TIVA_HAS_GPIOS.*/
+
+#if TIVA_HAS_GPIOT || defined(__DOXYGEN__)
+ gpio_init(GPIOT, &config->PTData);
+#endif /* TIVA_HAS_GPIOT.*/
+}
+
+/**
+ * @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)
+{
+ /* TODO: What does this function exactly do? The pins are already configured
+ * in board.h and initialized by the pal driver. */
+
+ (void) port;
+ (void) mask;
+ (void) mode;
+
+ /*
+ switch (mode) {
+ case PAL_MODE_UNCONNECTED:
+ case PAL_MODE_INPUT_PULLUP:
+ port->PUR |= mask;
+ case PAL_MODE_INPUT:
+ port->AFSEL &= ~mask;
+ port->DIR &= ~mask;
+ port->ODR &= ~mask;
+ port->DEN |= mask;
+ break;
+
+ case PAL_MODE_INPUT_PULLDOWN:
+ port->AFSEL &= ~mask;
+ port->DIR &= ~mask;
+ port->ODR &= ~mask;
+ port->DEN |= mask;
+ port->PDR |= mask;
+ break;
+
+ case PAL_MODE_RESET:
+ case PAL_MODE_INPUT_ANALOG:
+ port->AFSEL &= ~mask;
+ port->DIR &= ~mask;
+ port->ODR &= ~mask;
+ port->DEN &= ~mask;
+ port->PUR &= ~mask;
+ port->PDR &= ~mask;
+ break;
+
+ case PAL_MODE_OUTPUT_PUSHPULL:
+ port->AFSEL &= ~mask;
+ port->DIR |= mask;
+ port->ODR &= ~mask;
+ port->DEN |= mask;
+ break;
+
+ case PAL_MODE_OUTPUT_OPENDRAIN:
+ port->AFSEL &= ~mask;
+ port->DIR |= mask;
+ port->ODR |= mask;
+ port->DEN |= mask;
+ break;
+ }*/
+}
+
+#endif /* HAL_USE_PAL */
+
+/**
+ * @}
+ */
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