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Diffstat (limited to 'os/hal/platforms/STM8/pal_lld.h')
| -rw-r--r-- | os/hal/platforms/STM8/pal_lld.h | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/os/hal/platforms/STM8/pal_lld.h b/os/hal/platforms/STM8/pal_lld.h new file mode 100644 index 000000000..d5517fe86 --- /dev/null +++ b/os/hal/platforms/STM8/pal_lld.h @@ -0,0 +1,200 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file STM8/pal_lld.h
+ * @brief STM8 GPIO low level driver header.
+ *
+ * @addtogroup STM8_PAL
+ * @{
+ */
+
+#ifndef _PAL_LLD_H_
+#define _PAL_LLD_H_
+
+#if CH_HAL_USE_PAL || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Unsupported modes and specific modes */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* I/O Ports Types and constants. */
+/*===========================================================================*/
+
+typedef struct {
+ volatile uint8_t ODR;
+ volatile uint8_t IDR;
+ volatile uint8_t DDR;
+ volatile uint8_t CR1;
+ volatile uint8_t CR2;
+} gpio_t;
+
+/**
+ * @brief Generic I/O ports 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 {
+ gpio_t P[9];
+} STM8GPIOConfig;
+
+/**
+ * @brief Width, in bits, of an I/O port. + */
+#define PAL_IOPORTS_WIDTH 32
+
+/**
+ * @brief Whole port mask.
+ * @brief This macro specifies all the valid bits into a port. + */
+#define PAL_WHOLE_PORT ((ioportmask_t)0xFFFFFFFF)
+
+/**
+ * @brief Digital I/O port sized unsigned type. + */
+typedef uint32_t ioportmask_t;
+
+/**
+ * @brief Port Identifier.
+ */
+typedef gpio_t *ioportid_t;
+
+/*===========================================================================*/
+/* I/O Ports Identifiers. */
+/*===========================================================================*/
+
+/**
+ * @brief GPIO ports as a whole.
+ */
+#define IOPORTS ((STM8GPIOConfig *)0x5000)
+
+/**
+ * @brief GPIO port A identifier.
+ */
+#define IOPORT1 ((gpio_t *)0x5000)
+
+/**
+ * @brief GPIO port B identifier.
+ */
+#define IOPORT2 ((gpio_t *)0x5005)
+
+/**
+ * @brief GPIO port C identifier.
+ */
+#define IOPORT3 ((gpio_t *)0x500A)
+
+/**
+ * @brief GPIO port D identifier.
+ */
+#define IOPORT4 ((gpio_t *)0x500F)
+
+/**
+ * @brief GPIO port E identifier.
+ */
+#define IOPORT5 ((gpio_t *)0x5014)
+
+/**
+ * @brief GPIO port F identifier.
+ */
+#define IOPORT6 ((gpio_t *)0x5019)
+
+/**
+ * @brief GPIO port G identifier.
+ */
+#define IOPORT7 ((gpio_t *)0x501E)
+
+/**
+ * @brief GPIO port H identifier.
+ */
+#define IOPORT8 ((gpio_t *)0x5023)
+
+/**
+ * @brief GPIO port I identifier.
+ */
+#define IOPORT9 ((gpio_t *)0x5028)
+
+/*===========================================================================*/
+/* 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
+ */
+#define pal_lld_init(config) *IOPORTS = *(config)
+
+/**
+ * @brief Reads the physical I/O port states.
+ * @note This function is not meant to be invoked directly by the
+ * application code.
+ *
+ * @param[in] port port identifier
+ * @return The port bits.
+ */
+#define pal_lld_readport(port) ((port)->IDR)
+
+/**
+ * @brief Reads the output latch.
+ * @details The purpose of this function is to read back the latched output
+ * value.
+ * @note This function is not meant to be invoked directly by the
+ * application code.
+ *
+ * @param[in] port port identifier
+ * @return The latched logical states.
+ */
+#define pal_lld_readlatch(port) ((port)->ODR)
+
+/**
+ * @brief Writes a bits mask on a I/O port.
+ * @note This function is not meant to be invoked directly by the
+ * application code.
+ *
+ * @param[in] port port identifier
+ * @param[in] bits bits to be written on the specified port
+ */
+#define pal_lld_writeport(port, bits) ((port)->ODR = (bits))
+
+
+/**
+ * @brief Pads group mode setup.
+ * @details This function programs a pads group belonging to the same port
+ * with the specified mode.
+ * @note This function is not meant to be invoked directly by the
+ * application code.
+ * @note Programming an unknown or unsupported mode is silently ignored.
+ *
+ * @param[in] port port identifier
+ * @param[in] mask group mask
+ * @param[in] mode group mode
+ */
+#define pal_lld_setgroupmode(port, mask, mode) ((void)(mode))
+
+extern const STM8GPIOConfig pal_default_config;
+
+#endif /* CH_HAL_USE_PAL */
+
+#endif /* _PAL_LLD_H_ */
+
+/** @} */
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