New upstream version 18.08upstream/18.08

Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 189 insertions, 0 deletions

diff --git a/drivers/bus/fslmc/mc/fsl_dpdmai.h b/drivers/bus/fslmc/mc/fsl_dpdmai.h
new file mode 100644
index 00000000..03e46ec1
--- /dev/null
+++ b/drivers/bus/fslmc/mc/fsl_dpdmai.h
@@ -0,0 +1,189 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2018 NXP
+ */
+
+#ifndef __FSL_DPDMAI_H
+#define __FSL_DPDMAI_H
+
+struct fsl_mc_io;
+
+/* Data Path DMA Interface API
+ * Contains initialization APIs and runtime control APIs for DPDMAI
+ */
+
+/* General DPDMAI macros */
+
+/**
+ * Maximum number of Tx/Rx priorities per DPDMAI object
+ */
+#define DPDMAI_PRIO_NUM		2
+
+/**
+ * All queues considered; see dpdmai_set_rx_queue()
+ */
+#define DPDMAI_ALL_QUEUES	(uint8_t)(-1)
+
+int dpdmai_open(struct fsl_mc_io *mc_io,
+		uint32_t cmd_flags,
+		int dpdmai_id,
+		uint16_t *token);
+
+int dpdmai_close(struct fsl_mc_io *mc_io,
+		 uint32_t cmd_flags,
+		 uint16_t token);
+
+/**
+ * struct dpdmai_cfg - Structure representing DPDMAI configuration
+ * @priorities: Priorities for the DMA hardware processing; valid priorities are
+ *	configured with values 1-8; the entry following last valid entry
+ *	should be configured with 0
+ */
+struct dpdmai_cfg {
+	uint8_t priorities[DPDMAI_PRIO_NUM];
+};
+
+int dpdmai_create(struct fsl_mc_io *mc_io,
+		  uint16_t dprc_token,
+		  uint32_t cmd_flags,
+		  const struct dpdmai_cfg *cfg,
+		  uint32_t *obj_id);
+
+int dpdmai_destroy(struct fsl_mc_io *mc_io,
+		   uint16_t dprc_token,
+		   uint32_t cmd_flags,
+		   uint32_t object_id);
+
+int dpdmai_enable(struct fsl_mc_io *mc_io,
+		  uint32_t cmd_flags,
+		  uint16_t token);
+
+int dpdmai_disable(struct fsl_mc_io *mc_io,
+		   uint32_t cmd_flags,
+		   uint16_t token);
+
+int dpdmai_is_enabled(struct fsl_mc_io *mc_io,
+		      uint32_t cmd_flags,
+		      uint16_t token,
+		      int *en);
+
+int dpdmai_reset(struct fsl_mc_io *mc_io,
+		 uint32_t cmd_flags,
+		 uint16_t token);
+
+/**
+ * struct dpdmai_attr - Structure representing DPDMAI attributes
+ * @id: DPDMAI object ID
+ * @num_of_priorities: number of priorities
+ */
+struct dpdmai_attr {
+	int id;
+	uint8_t num_of_priorities;
+};
+
+int dpdmai_get_attributes(struct fsl_mc_io *mc_io,
+			  uint32_t cmd_flags,
+			  uint16_t token,
+			  struct dpdmai_attr *attr);
+
+/**
+ * enum dpdmai_dest - DPDMAI destination types
+ * @DPDMAI_DEST_NONE: Unassigned destination; The queue is set in parked mode
+ *	and does not generate FQDAN notifications; user is expected to dequeue
+ *	from the queue based on polling or other user-defined method
+ * @DPDMAI_DEST_DPIO: The queue is set in schedule mode and generates FQDAN
+ *	notifications to the specified DPIO; user is expected to dequeue
+ *	from the queue only after notification is received
+ * @DPDMAI_DEST_DPCON: The queue is set in schedule mode and does not generate
+ *	FQDAN notifications, but is connected to the specified DPCON object;
+ *	user is expected to dequeue from the DPCON channel
+ */
+enum dpdmai_dest {
+	DPDMAI_DEST_NONE = 0,
+	DPDMAI_DEST_DPIO = 1,
+	DPDMAI_DEST_DPCON = 2
+};
+
+/**
+ * struct dpdmai_dest_cfg - Structure representing DPDMAI destination parameters
+ * @dest_type: Destination type
+ * @dest_id: Either DPIO ID or DPCON ID, depending on the destination type
+ * @priority: Priority selection within the DPIO or DPCON channel; valid values
+ *	are 0-1 or 0-7, depending on the number of priorities in that
+ *	channel; not relevant for 'DPDMAI_DEST_NONE' option
+ */
+struct dpdmai_dest_cfg {
+	enum dpdmai_dest dest_type;
+	int dest_id;
+	uint8_t priority;
+};
+
+/* DPDMAI queue modification options */
+
+/**
+ * Select to modify the user's context associated with the queue
+ */
+#define DPDMAI_QUEUE_OPT_USER_CTX	0x00000001
+
+/**
+ * Select to modify the queue's destination
+ */
+#define DPDMAI_QUEUE_OPT_DEST		0x00000002
+
+/**
+ * struct dpdmai_rx_queue_cfg - DPDMAI RX queue configuration
+ * @options: Flags representing the suggested modifications to the queue;
+ *	Use any combination of 'DPDMAI_QUEUE_OPT_<X>' flags
+ * @user_ctx: User context value provided in the frame descriptor of each
+ *	dequeued frame;
+ *	valid only if 'DPDMAI_QUEUE_OPT_USER_CTX' is contained in 'options'
+ * @dest_cfg: Queue destination parameters;
+ *	valid only if 'DPDMAI_QUEUE_OPT_DEST' is contained in 'options'
+ */
+struct dpdmai_rx_queue_cfg {
+	uint32_t options;
+	uint64_t user_ctx;
+	struct dpdmai_dest_cfg dest_cfg;
+
+};
+
+int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io,
+			uint32_t cmd_flags,
+			uint16_t token,
+			uint8_t priority,
+			const struct dpdmai_rx_queue_cfg *cfg);
+
+/**
+ * struct dpdmai_rx_queue_attr - Structure representing attributes of Rx queues
+ * @user_ctx:  User context value provided in the frame descriptor of each
+ *	 dequeued frame
+ * @dest_cfg: Queue destination configuration
+ * @fqid: Virtual FQID value to be used for dequeue operations
+ */
+struct dpdmai_rx_queue_attr {
+	uint64_t user_ctx;
+	struct dpdmai_dest_cfg dest_cfg;
+	uint32_t fqid;
+};
+
+int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io,
+			uint32_t cmd_flags,
+			uint16_t token,
+			uint8_t priority,
+			struct dpdmai_rx_queue_attr *attr);
+
+/**
+ * struct dpdmai_tx_queue_attr - Structure representing attributes of Tx queues
+ * @fqid: Virtual FQID to be used for sending frames to DMA hardware
+ */
+
+struct dpdmai_tx_queue_attr {
+	uint32_t fqid;
+};
+
+int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io,
+			uint32_t cmd_flags,
+			uint16_t token,
+			uint8_t priority,
+			struct dpdmai_tx_queue_attr *attr);
+
+#endif /* __FSL_DPDMAI_H */