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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2017-01-16 16:17:30 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2017-01-16 16:17:30 +0000 |
| commit | 705d7269323e1d93c4fb8c7afa0aa88d4ae8f6a8 (patch) | |
| tree | d0a482e5746087fb29aea826c4e41536130a9bde /os/hal/lib/fallback/I2C/hal_i2c_lld.h | |
| parent | 2689848803371cc3492743b951bbe8f73ca9ac92 (diff) | |
| download | ChibiOS-705d7269323e1d93c4fb8c7afa0aa88d4ae8f6a8.tar.gz ChibiOS-705d7269323e1d93c4fb8c7afa0aa88d4ae8f6a8.tar.bz2 ChibiOS-705d7269323e1d93c4fb8c7afa0aa88d4ae8f6a8.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10055 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/lib/fallback/I2C/hal_i2c_lld.h')
| -rw-r--r-- | os/hal/lib/fallback/I2C/hal_i2c_lld.h | 42 |
1 files changed, 38 insertions, 4 deletions
diff --git a/os/hal/lib/fallback/I2C/hal_i2c_lld.h b/os/hal/lib/fallback/I2C/hal_i2c_lld.h index 0bcb3dfbe..c6c4908a4 100644 --- a/os/hal/lib/fallback/I2C/hal_i2c_lld.h +++ b/os/hal/lib/fallback/I2C/hal_i2c_lld.h @@ -40,6 +40,16 @@ * @{
*/
/**
+ * @brief Use OSAL delays.
+ * @details If set to @p TRUE then delays are implemented using the
+ * thread-friendy delay function else a delay function must
+ * be provided extenally.
+ */
+#if !defined(SW_I2C_USE_OSAL_DELAY) || defined(__DOXYGEN__)
+#define SW_I2C_USE_OSAL_DELAY TRUE
+#endif
+
+/**
* @brief I2C1 driver enable switch.
* @details If set to @p TRUE the support for I2C1 is included.
* @note The default is @p FALSE.
@@ -95,9 +105,33 @@ typedef uint16_t i2caddr_t; typedef uint8_t i2cflags_t;
/**
+ * @brief Type of a delay function.
+ */
+typedef void (*i2c_delay_t)(void);
+
+/**
* @brief Type of I2C driver configuration structure.
*/
typedef struct {
+ /**
+ * @brief I2C clock line.
+ */
+ ioline_t scl;
+ /**
+ * @brief I2C data line.
+ */
+ ioline_t sda;
+#if SW_I2C_USE_OSAL_DELAY || defined(__DOXYGEN__)
+ /**
+ * @brief Delay of an half bit time in system ticks.
+ */
+ systime_t ticks;
+#else
+ /**
+ * @brief Pointer to an externally defined delay function.
+ */
+ i2c_delay_t delay;
+#endif
} I2CConfig;
/**
@@ -129,13 +163,13 @@ struct I2CDriver { #endif
/* End of the mandatory fields.*/
/**
- * @brief I2C clock line.
+ * @brief Time of operation begin.
*/
- ioline_t clk;
+ systime_t start;
/**
- * @brief I2C data line.
+ * @brief Time of operation timeout.
*/
- ioline_t data;
+ systime_t end;
};
/*===========================================================================*/
|