[Minios-devel] [UNIKRAFT PATCH 7/7] lib/ukconsdev: Enable interrupts on console device

[Birlea Costin <costin.birlea@xxxxxxxxx>]

Signed-off-by: Birlea Costin <costin.birlea@xxxxxxxxx>
---
 lib/ukconsdev/consdev.c                 |  2 ++
 lib/ukconsdev/exportsyms.uk             |  2 ++
 lib/ukconsdev/include/uk/consdev.h      | 44 +++++++++++++++++++++++++++++++++
 lib/ukconsdev/include/uk/consdev_core.h |  8 ++++++
 4 files changed, 56 insertions(+)

diff --git a/lib/ukconsdev/consdev.c b/lib/ukconsdev/consdev.c
index b91b0a7f..fd01540b 100644
--- a/lib/ukconsdev/consdev.c
+++ b/lib/ukconsdev/consdev.c
@@ -445,6 +445,8 @@ int uk_consdev_drv_register(struct uk_consdev *dev, struct 
uk_alloc *a,
        UK_ASSERT(dev->ops->rx_configure);
        UK_ASSERT(dev->ops->tx_configure);
        UK_ASSERT(dev->ops->release);
+       UK_ASSERT((dev->ops->rx_intr_enable && dev->ops->rx_intr_disable)
+               || (!dev->ops->rx_intr_enable && !dev->ops->rx_intr_disable));
        UK_ASSERT(dev->ops->write);
        UK_ASSERT(dev->ops->read);
        UK_ASSERT(dev->ops->start);
diff --git a/lib/ukconsdev/exportsyms.uk b/lib/ukconsdev/exportsyms.uk
index 4d39941d..4b68d711 100644
--- a/lib/ukconsdev/exportsyms.uk
+++ b/lib/ukconsdev/exportsyms.uk
@@ -7,6 +7,8 @@ uk_consdev_tx_configure
 uk_consdev_release
 uk_consdev_start
 uk_consdev_stop
+uk_consdev_rx_intr_enable
+uk_consdev_rx_intr_disable
 uk_consdev_write
 uk_consdev_read
 uk_consdev_count
diff --git a/lib/ukconsdev/include/uk/consdev.h 
b/lib/ukconsdev/include/uk/consdev.h
index 9f2f0567..844c2aca 100644
--- a/lib/ukconsdev/include/uk/consdev.h
+++ b/lib/ukconsdev/include/uk/consdev.h
@@ -219,6 +219,50 @@ int uk_consdev_start(struct uk_consdev *dev);
 int uk_consdev_stop(struct uk_consdev *dev);
 
 /**
+ * Enable interrupts for rx.
+ *
+ * @param dev
+ *     The Unikraft Console Device in running state.
+ * @return
+ *     - (0): Success, interrupts enabled.
+ *     - (-ENOTSUP): Driver does not support interrupts.
+ */
+static inline int uk_consdev_rx_intr_enable(struct uk_consdev *dev)
+{
+       UK_ASSERT(dev);
+       UK_ASSERT(dev->ops);
+       UK_ASSERT(dev->_data);
+       UK_ASSERT(dev->_data->state == UK_CONSDEV_RUNNING);
+
+       if (unlikely(!dev->ops->rx_intr_enable))
+               return -ENOTSUP;
+
+       return dev->ops->rx_intr_enable(dev);
+}
+
+/**
+ * Disable interrupts for rx.
+ *
+ * @param dev
+ *     The Unikraft Console Device in running state.
+ * @return
+ *     - (0): Success, interrupts disabled.
+ *     - (-ENOTSUP): Driver does not support interrupts.
+ */
+static inline int uk_consdev_rx_intr_disable(struct uk_consdev *dev)
+{
+       UK_ASSERT(dev);
+       UK_ASSERT(dev->_data);
+       UK_ASSERT(dev->ops);
+       UK_ASSERT(dev->_data->state == UK_CONSDEV_RUNNING);
+
+       if (unlikely(!dev->ops->rx_intr_disable))
+               return -ENOTSUP;
+
+       return dev->ops->rx_intr_disable(dev);
+}
+
+/**
  * @param dev
  *  The Unikraft Console Device in running state.
  * @param buf
diff --git a/lib/ukconsdev/include/uk/consdev_core.h 
b/lib/ukconsdev/include/uk/consdev_core.h
index 6c675fa7..d30655ef 100644
--- a/lib/ukconsdev/include/uk/consdev_core.h
+++ b/lib/ukconsdev/include/uk/consdev_core.h
@@ -170,6 +170,12 @@ typedef int (*uk_consdev_tx_configure_t)(struct uk_consdev 
*dev,
 /** Driver callback type to release a configured Unikraft console device */
 typedef int (*uk_consdev_release_t)(struct uk_consdev *dev);
 
+/** Driver callback type to enable interrupts of an Unikraft console device. */
+typedef int (*uk_consdev_rx_intr_enable_t)(struct uk_consdev *dev);
+
+/** Driver callback type to disable interrupts of an Unikraft console device. 
*/
+typedef int (*uk_consdev_rx_intr_disable_t)(struct uk_consdev *dev);
+
 /** Driver callback type to start a configured Unikraft console device. */
 typedef int (*uk_consdev_start_t)(struct uk_consdev *dev);
 
@@ -197,6 +203,8 @@ struct uk_consdev_ops {
        uk_consdev_tx_configure_t           tx_configure;
        uk_consdev_start_t                  start;
        uk_consdev_stop_t                   stop;
+       uk_consdev_rx_intr_enable_t         rx_intr_enable;
+       uk_consdev_rx_intr_disable_t        rx_intr_disable;
        uk_consdev_write_t                  write;
        uk_consdev_read_t                   read;
        uk_consdev_close_t                  close;
-- 
2.11.0


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