diff options
Diffstat (limited to 'os/hal/ports/NRF5/NRF51822/hal_i2c_lld.h')
-rw-r--r-- | os/hal/ports/NRF5/NRF51822/hal_i2c_lld.h | 232 |
1 files changed, 0 insertions, 232 deletions
diff --git a/os/hal/ports/NRF5/NRF51822/hal_i2c_lld.h b/os/hal/ports/NRF5/NRF51822/hal_i2c_lld.h deleted file mode 100644 index f631368..0000000 --- a/os/hal/ports/NRF5/NRF51822/hal_i2c_lld.h +++ /dev/null @@ -1,232 +0,0 @@ -/*
- Copyright (C) 2015 Stephen Caudle
-
- 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 NRF51822/i2c_lld.h
- * @brief NRF51822 I2C subsystem low level driver header.
- *
- * @addtogroup I2C
- * @{
- */
-
-#ifndef HAL_I2C_LLD_H
-#define HAL_I2C_LLD_H
-
-#if HAL_USE_I2C || defined(__DOXYGEN__)
-
-/*===========================================================================*/
-/* Driver constants. */
-/*===========================================================================*/
-
-#define STATE_STOP 0x00
-#define STATE_SEND 0x01
-#define STATE_RECV 0x02
-#define STATE_DUMMY 0x03
-
-/*===========================================================================*/
-/* Driver pre-compile time settings. */
-/*===========================================================================*/
-
-/**
- * @name Configuration options
- * @{
- */
-/**
- * @brief I2C0 driver enable switch.
- * @details If set to @p TRUE the support for I2C0 is included.
- * @note The default is @p FALSE.
- */
-#if !defined(NRF5_I2C_USE_I2C0) || defined(__DOXYGEN__)
-#define NRF5_I2C_USE_I2C0 FALSE
-#endif
-
-/**
- * @brief I2C1 driver enable switch.
- * @details If set to @p TRUE the support for I2C1 is included.
- * @note The default is @p FALSE.
- */
-#if !defined(NRF5_I2C_USE_I2C1) || defined(__DOXYGEN__)
-#define NRF5_I2C_USE_I2C1 FALSE
-#endif
-
-/**
- * @brief I2C0 interrupt priority level setting.
- */
-#if !defined(NRF5_I2C_I2C0_IRQ_PRIORITY) || defined(__DOXYGEN__)
-#define NRF5_I2C_I2C0_IRQ_PRIORITY 3
-#endif
-
-/**
- * @brief I2C1 interrupt priority level setting.
- */
-#if !defined(NRF5_I2C_I2C1_IRQ_PRIORITY) || defined(__DOXYGEN__)
-#define NRF5_I2C_I2C1_IRQ_PRIORITY 3
-#endif
-/** @} */
-
-/*===========================================================================*/
-/* Derived constants and error checks. */
-/*===========================================================================*/
-
-#if NRF5_I2C_USE_I2C0 && \
- !OSAL_IRQ_IS_VALID_PRIORITY(NRF5_I2C_I2C0_IRQ_PRIORITY)
-#error "Invalid IRQ priority assigned to I2C0"
-#endif
-
-#if NRF5_I2C_USE_I2C1 && \
- !OSAL_IRQ_IS_VALID_PRIORITY(NRF5_I2C_I2C1_IRQ_PRIORITY)
-#error "Invalid IRQ priority assigned to I2C1"
-#endif
-
-/*===========================================================================*/
-/* Driver data structures and types. */
-/*===========================================================================*/
-
-/* @brief Type representing I2C address. */
-typedef uint8_t i2caddr_t;
-
-/* @brief Type of I2C Driver condition flags. */
-typedef uint32_t i2cflags_t;
-
-/* @brief Type used to control the ISR state machine. */
-typedef uint8_t intstate_t;
-
-/**
- * @brief Driver configuration structure.
- * @note Implementations may extend this structure to contain more,
- * architecture dependent, fields.
- */
-
-/**
- * @brief Driver configuration structure.
- */
-typedef struct {
-
- /* @brief Clock to be used for the I2C bus. */
- uint32_t clock;
- /* @brief Pad number for SCL */
- uint8_t scl_pad;
- /* @brief Pad number for SDA */
- uint8_t sda_pad;
-
-} I2CConfig;
-
-/**
- * @brief Type of a structure representing an I2C driver.
- */
-typedef struct I2CDriver I2CDriver;
-
-/**
- * @brief Structure representing an I2C driver.
- */
-struct I2CDriver {
- /**
- * @brief Driver state.
- */
- i2cstate_t state;
- /**
- * @brief Current configuration data.
- */
- const I2CConfig *config;
- /**
- * @brief Error flags.
- */
- i2cflags_t errors;
-#if I2C_USE_MUTUAL_EXCLUSION || defined(__DOXYGEN__)
-#if CH_CFG_USE_MUTEXES || defined(__DOXYGEN__)
- /**
- * @brief Mutex protecting the bus.
- */
- mutex_t mutex;
-#elif CH_CFG_USE_SEMAPHORES
- semaphore_t semaphore;
-#endif
-#endif /* I2C_USE_MUTUAL_EXCLUSION */
-#if defined(I2C_DRIVER_EXT_FIELDS)
- I2C_DRIVER_EXT_FIELDS
-#endif
- /* @brief Thread waiting for I/O completion. */
- thread_reference_t thread;
- /* @brief Current slave address without R/W bit. */
- i2caddr_t addr;
-
- /* End of the mandatory fields.*/
-
- /* @brief Pointer to the buffer with data to send. */
- const uint8_t *txptr;
- /* @brief Number of bytes of data to send. */
- size_t txbytes;
- /* @brief Pointer to the buffer to put received data. */
- uint8_t *rxptr;
- /* @brief Number of bytes of data to receive. */
- size_t rxbytes;
- /* @brief Tracks current ISR state. */
- intstate_t intstate;
- /* @brief Low-level register access. */
- NRF_TWI_Type *i2c;
-};
-
-/*===========================================================================*/
-/* Driver macros. */
-/*===========================================================================*/
-
-/**
- * @brief Get errors from I2C driver.
- *
- * @param[in] i2cp pointer to the @p I2CDriver object
- *
- * @notapi
- */
-#define i2c_lld_get_errors(i2cp) ((i2cp)->errors)
-
-/*===========================================================================*/
-/* External declarations. */
-/*===========================================================================*/
-
-#if !defined(__DOXYGEN__)
-
-#if NRF5_I2C_USE_I2C0
-extern I2CDriver I2CD1;
-#endif
-
-#if NRF5_I2C_USE_I2C1
-extern I2CDriver I2CD2;
-#endif
-
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
- void i2c_lld_init(void);
- void i2c_lld_start(I2CDriver *i2cp);
- void i2c_lld_stop(I2CDriver *i2cp);
- msg_t i2c_lld_master_transmit_timeout(I2CDriver *i2cp, i2caddr_t addr,
- const uint8_t *txbuf, size_t txbytes,
- uint8_t *rxbuf, size_t rxbytes,
- systime_t timeout);
- msg_t i2c_lld_master_receive_timeout(I2CDriver *i2cp, i2caddr_t addr,
- uint8_t *rxbuf, size_t rxbytes,
- systime_t timeout);
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* HAL_USE_I2C */
-
-#endif /* HAL_I2C_LLD_H */
-
-/** @} */
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