diff options
Diffstat (limited to 'os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.h')
| -rw-r--r-- | os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.h | 47 |
1 files changed, 43 insertions, 4 deletions
diff --git a/os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.h b/os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.h index 03d85b138..3812254aa 100644 --- a/os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.h +++ b/os/hal/platforms/SPC5xx/EDMA_v1/spc5_edma.h @@ -42,10 +42,28 @@ /* Driver pre-compile time settings. */
/*===========================================================================*/
+/**
+ * @brief Default EDMA CR register initialization.
+ */
+#if !defined(SPC5_EDMA_ERROR_HANDLER) || defined(__DOXYGEN__)
+#define SPC5_EDMA_CR_SETTING 0x0000C400
+#endif
+
+/**
+ * @brief EDMA critical error handler, must not return.
+ */
+#if !defined(SPC5_EDMA_ERROR_HANDLER) || defined(__DOXYGEN__)
+#define SPC5_EDMA_ERROR_HANDLER() chSysHalt()
+#endif
+
/*===========================================================================*/
/* Derived constants and error checks. */
/*===========================================================================*/
+#if !SPC5_HAS_EDMAA
+#error "this device does not have an eDMA unit"
+#endif
+
/*===========================================================================*/
/* Driver data structures and types. */
/*===========================================================================*/
@@ -65,18 +83,21 @@ typedef struct { /**
* @brief DMA ISR function type.
*
- * @param[in] tcd pointer to the TCD associated to this ISR
+ * @param[in] channel the channel number
* @param[in] p parameter for the registered function
*/
-typedef void (*edma_isr_t)(edma_tcd_t *tcd, void *p);
+typedef void (*edma_callback_t)(edma_channel_t channel, void *p);
/**
* @brief Type of an EDMA channel configuration structure.
*/
typedef struct {
- uint32_t dma_periph; /**< @brief Peripheral to be
+ uint8_t dma_periph; /**< @brief Peripheral to be
associated to the channel. */
- edma_isr_t dma_func; /**< @brief Channel ISR callback. */
+ uint8_t dma_priority; /**< @brief Priority register value
+ for this channel. */
+ edma_callback_t dma_func; /**< @brief Channel callback. */
+ edma_callback_t dma_error_func; /**< @brief Channel error callback. */
void *dma_param; /**< @brief Channel callback param. */
} edma_channel_config_t;
@@ -84,6 +105,24 @@ typedef struct { /* Driver macros. */
/*===========================================================================*/
+/**
+ * @brief Starts or restarts an EDMA channel.
+ *
+ * @param[in] channel the channel number
+ *
+ * @api
+ */
+#define edmaChannelStart(channel) (EDMA.SERQR.R = (channel))
+
+/**
+ * @brief Stops an EDMA channel.
+ *
+ * @param[in] channel the channel number
+ *
+ * @api
+ */
+#define edmaChannelStop(channel) (EDMA.CERQR.R = (channel))
+
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
|