diff options
Diffstat (limited to 'os/hal/include/i2s.h')
| -rw-r--r-- | os/hal/include/i2s.h | 67 |
1 files changed, 47 insertions, 20 deletions
diff --git a/os/hal/include/i2s.h b/os/hal/include/i2s.h index b2dacbb49..711ec3b5c 100644 --- a/os/hal/include/i2s.h +++ b/os/hal/include/i2s.h @@ -41,9 +41,6 @@ */
#define I2S_MODE_SLAVE 0
#define I2S_MODE_MASTER 1
-#define I2S_MODE_TX 2
-#define I2S_MODE_RX 4
-#define I2S_MODE_TXRX (I2S_MODE_TX | I2S_MODE_RX)
/** @} */
/*===========================================================================*/
@@ -69,11 +66,6 @@ typedef enum { I2S_COMPLETE = 4 /**< Transmission complete. */
} i2sstate_t;
-/**
- * @brief Type of a structure representing a I2S driver.
- */
-typedef struct I2SDriver I2SDriver;
-
#include "i2s_lld.h"
/*===========================================================================*/
@@ -88,6 +80,10 @@ typedef struct I2SDriver I2SDriver; * @brief Starts a I2S data exchange.
*
* @param[in] i2sp pointer to the @p I2SDriver object
+ * @param[in] n size of the transmit buffer, must be even and greater
+ * than zero
+ * @param[out] txbuf the pointer to the transmit buffer
+ * @param[out] rxbuf the pointer to the receive buffer
*
* @iclass
*/
@@ -97,18 +93,6 @@ typedef struct I2SDriver I2SDriver; }
/**
- * @brief Starts a I2S data exchange in continuous mode.
- *
- * @param[in] i2sp pointer to the @p I2SDriver object
- *
- * @iclass
- */
-#define i2sStartExchangeContinuousI(i2sp) { \
- i2s_lld_start_exchange_continuous(i2sp); \
- (i2sp)->state = I2S_ACTIVE; \
-}
-
-/**
* @brief Stops the ongoing data exchange.
* @details The ongoing data exchange, if any, is stopped, if the driver
* was not active the function does nothing.
@@ -122,6 +106,49 @@ typedef struct I2SDriver I2SDriver; (i2sp)->state = I2S_READY; \
}
+/**
+ * @brief Common ISR code, half buffer event.
+ * @details This code handles the portable part of the ISR code:
+ * - Callback invocation.
+ * .
+ * @note This macro is meant to be used in the low level drivers
+ * implementation only.
+ *
+ * @param[in] i2sp pointer to the @p I2CDriver object
+ *
+ * @notapi
+ */
+#define _i2s_isr_half_code(i2sp) { \
+ if ((i2sp)->config->end_cb != NULL) { \
+ (i2sp)->config->end_cb(i2sp, 0, (i2sp)->config->size / 2); \
+ } \
+}
+
+/**
+ * @brief Common ISR code.
+ * @details This code handles the portable part of the ISR code:
+ * - Callback invocation.
+ * - Driver state transitions.
+ * .
+ * @note This macro is meant to be used in the low level drivers
+ * implementation only.
+ *
+ * @param[in] i2sp pointer to the @p I2CDriver object
+ *
+ * @notapi
+ */
+#define _i2s_isr_full_code(i2sp) { \
+ if ((i2sp)->config->end_cb) { \
+ (i2sp)->state = I2S_COMPLETE; \
+ (i2sp)->config->end_cb(i2sp, \
+ (i2sp)->config->size / 2, \
+ (i2sp)->config->size / 2); \
+ if ((i2sp)->state == I2S_COMPLETE) \
+ (i2sp)->state = I2S_READY; \
+ } \
+ else \
+ (i2sp)->state = I2S_READY; \
+}
/** @} */
/*===========================================================================*/
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