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Diffstat (limited to 'os/hal/platforms/STM8S/pal_lld.h')
| -rw-r--r-- | os/hal/platforms/STM8S/pal_lld.h | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/os/hal/platforms/STM8S/pal_lld.h b/os/hal/platforms/STM8S/pal_lld.h new file mode 100644 index 000000000..86246a05b --- /dev/null +++ b/os/hal/platforms/STM8S/pal_lld.h @@ -0,0 +1,229 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+ 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 STM8S/pal_lld.h
+ * @brief STM8S GPIO low level driver header.
+ *
+ * @addtogroup PAL
+ * @{
+ */
+
+#ifndef _PAL_LLD_H_
+#define _PAL_LLD_H_
+
+#if HAL_USE_PAL || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Unsupported modes and specific modes */
+/*===========================================================================*/
+
+#undef PAL_MODE_INPUT_PULLDOWN
+
+/**
+ * @brief STM8S specific alternate push-pull slow output mode.
+ */
+#define PAL_MODE_OUTPUT_PUSHPULL_SLOW 16
+
+/**
+ * @brief STM8S specific alternate open-drain slow output mode.
+ */
+#define PAL_MODE_OUTPUT_OPENDRAIN_SLOW 17
+
+/*===========================================================================*/
+/* I/O Ports Types and constants. */
+/*===========================================================================*/
+
+/**
+ * @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 {
+#if defined(STM8S105) || defined(__DOXYGEN__)
+ GPIO_TypeDef P[7];
+#elif defined(STM8S207) || defined(STM8S208)
+ GPIO_TypeDef P[9];
+#else
+ GPIO_TypeDef P[6];
+#endif
+} PALConfig;
+
+/**
+ * @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)
+
+/**
+ * @brief Digital I/O port sized unsigned type.
+ */
+typedef uint8_t ioportmask_t;
+
+/**
+ * @brief Digital I/O modes.
+ */
+typedef uint8_t iomode_t;
+
+/**
+ * @brief Port Identifier.
+ */
+typedef GPIO_TypeDef *ioportid_t;
+
+/*===========================================================================*/
+/* I/O Ports Identifiers. */
+/*===========================================================================*/
+
+/**
+ * @brief GPIO ports as a whole.
+ */
+#define IOPORTS ((PALConfig *)0x5000)
+
+/**
+ * @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
+
+#if defined(STM8S207) || defined(STM8S208) || defined(STM8S105) || \
+ defined(__DOXYGEN__)
+/**
+ * @brief GPIO port G identifier.
+ */
+#define IOPORT7 GPIOG
+#endif
+
+#if defined(STM8S207) || defined(STM8S208) || defined(__DOXYGEN__)
+/**
+ * @brief GPIO port H identifier.
+ */
+#define IOPORT8 GPIOH
+
+/**
+ * @brief GPIO port I identifier.
+ */
+#define IOPORT9 GPIOI
+#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) (*IOPORTS = *(config))
+
+/**
+ * @brief Reads the physical I/O port states.
+ *
+ * @param[in] port port identifier
+ * @return The port bits.
+ *
+ * @notapi
+ */
+#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.
+ *
+ * @param[in] port port identifier
+ * @return The latched logical states.
+ *
+ * @notapi
+ */
+#define pal_lld_readlatch(port) ((port)->ODR)
+
+/**
+ * @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) ((port)->ODR = (bits))
+
+/**
+ * @brief Pads group mode setup.
+ * @details This function programs a pads group belonging to the same port
+ * with the specified mode.
+ *
+ * @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)
+
+extern ROMCONST PALConfig pal_default_config;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void _pal_lld_setgroupmode(ioportid_t port,
+ ioportmask_t mask,
+ iomode_t mode);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_PAL */
+
+#endif /* _PAL_LLD_H_ */
+
+/** @} */
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