Converting Ethos-U driver to rpmsg
The Ethos-U kernel driver has been converted from a
platform driver with a custom firmware interface into a
rpmsg driver.
Change-Id: I9ae449f5e79eb02924e6630611d0893e5fec86be
diff --git a/kernel/ethosu_mailbox.h b/kernel/ethosu_mailbox.h
index c3f5579..edf922b 100644
--- a/kernel/ethosu_mailbox.h
+++ b/kernel/ethosu_mailbox.h
@@ -24,7 +24,7 @@
/****************************************************************************
* Includes
****************************************************************************/
-#include "ethosu_core_interface.h"
+#include "ethosu_core_rpmsg.h"
#include <linux/types.h>
#include <linux/mailbox_client.h>
@@ -45,17 +45,9 @@
typedef void (*ethosu_mailbox_cb)(void *user_arg);
struct ethosu_mailbox {
- struct device *dev;
- struct workqueue_struct *wq;
- struct work_struct work;
- struct ethosu_core_queue __iomem *in_queue;
- struct ethosu_core_queue __iomem *out_queue;
- struct mbox_client client;
- struct mbox_chan *rx;
- struct mbox_chan *tx;
- ethosu_mailbox_cb callback;
- void *user_arg;
- struct idr msg_idr;
+ struct device *dev;
+ struct rpmsg_endpoint *ept;
+ struct idr msg_idr;
};
struct ethosu_mailbox_msg {
@@ -74,10 +66,7 @@
*/
int ethosu_mailbox_init(struct ethosu_mailbox *mbox,
struct device *dev,
- struct resource *in_queue,
- struct resource *out_queue,
- ethosu_mailbox_cb callback,
- void *user_arg);
+ struct rpmsg_endpoint *ept);
/**
* ethosu_mailbox_deinit() - Deinitialize mailbox
@@ -85,36 +74,6 @@
void ethosu_mailbox_deinit(struct ethosu_mailbox *mbox);
/**
- * ethosu_mailbox_wait_prepare() - Prepare to wait on firmware
- *
- * This function must only be called when the firmware is in a
- * stopped state. It invalidates the firmware queues setting
- * size, read and write positions to illegal values.
- */
-void ethosu_mailbox_wait_prepare(struct ethosu_mailbox *mbox);
-
-/**
- * ethosu_mailbox_wait_firmware() - Waiting for firmware to initialize
- * message queues
- *
- * Following a call to ethosu_mailbox_wait_prepare() this function waits for
- * the firmware to boot up and initialize the firmware queues.
- *
- * Return: 0 on success, else error code.
- */
-int ethosu_mailbox_wait_firmware(struct ethosu_mailbox *mbox);
-
-/**
- * ethosu_mailbox_read() - Read message from mailbox
- *
- * Return: 0 message read, else error code.
- */
-int ethosu_mailbox_read(struct ethosu_mailbox *mbox,
- struct ethosu_core_msg *header,
- void *data,
- size_t length);
-
-/**
* ethosu_mailbox_register() - Register the ethosu_mailbox_msg in ethosu_mailbox
*
* Return: 0 on success, else error code.