Staging: ipack: Provide several carrier callbacks.

We provide callbacks to:
 - set/get the clockrate a module is accessed at,
 - get the error state of a slot,
 - get/reset the timeout state of a slot.

Signed-off-by: Jens Taprogge <jens.taprogge@taprogge.org>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/ipack/ipack.h b/drivers/staging/ipack/ipack.h
index 4d73f75..a133304 100644 (file)
--- a/drivers/staging/ipack/ipack.h
+++ b/drivers/staging/ipack/ipack.h
@@ -113,6 +113,15 @@ struct ipack_driver {
  *     @request_irq: request IRQ
  *     @free_irq: free IRQ
  *     @remove_device: tell the bridge module that the device has been removed
+ *     @get_clockrate: Returns the clockrate the carrier is currently
+ *             communicating with the device at.
+ *     @set_clockrate: Sets the clock-rate for carrier / module communication.
+ *             Should return -EINVAL if the requested speed is not supported.
+ *     @get_error: Returns the error state for the slot the device is attached
+ *             to.
+ *     @get_timeout: Returns 1 if the communication with the device has
+ *             previously timed out.
+ *     @reset_timeout: Resets the state returned by get_timeout.
  */
 struct ipack_bus_ops {
        int (*map_space) (struct ipack_device *dev, unsigned int memory_size, int space);
@@ -120,6 +129,12 @@ struct ipack_bus_ops {
        int (*request_irq) (struct ipack_device *dev, int vector, int (*handler)(void *), void *arg);
        int (*free_irq) (struct ipack_device *dev);
        int (*remove_device) (struct ipack_device *dev);
+
+       int (*get_clockrate) (struct ipack_device *dev);
+       int (*set_clockrate) (struct ipack_device *dev, int mherz);
+       int (*get_error) (struct ipack_device *dev);
+       int (*get_timeout) (struct ipack_device *dev);
+       int (*reset_timeout) (struct ipack_device *dev);
 };
 
 /**