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authorSamuel Ortiz <sameo@linux.intel.com>2013-03-27 17:29:57 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-03-29 08:45:59 -0700
commitcf3baefba04073237decb1b8a8c114b0b45bfc80 (patch)
tree735e86d98f20c7fb58b7480565837eabc02d7f7c /drivers/misc
parenta7b71bc043aded9da4cf51f85271e0779161fe22 (diff)
mei: bus: Call bus routines from the core code
Register the MEI bus type against the kernel core bus APIs and call the bus Rx handler from interrupt.c Signed-off-by: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/mei/bus.c22
-rw-r--r--drivers/misc/mei/interrupt.c2
-rw-r--r--drivers/misc/mei/main.c13
-rw-r--r--drivers/misc/mei/mei_dev.h6
-rw-r--r--drivers/misc/mei/pci-me.c1
5 files changed, 42 insertions, 2 deletions
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index 162cd542cac..c626dc9937e 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -441,3 +441,25 @@ int mei_cl_register_event_cb(struct mei_cl_device *device,
return 0;
}
EXPORT_SYMBOL_GPL(mei_cl_register_event_cb);
+
+void mei_cl_bus_rx_event(struct mei_cl *cl)
+{
+ struct mei_cl_device *device = cl->device;
+
+ if (!device || !device->event_cb)
+ return;
+
+ set_bit(MEI_CL_EVENT_RX, &device->events);
+
+ schedule_work(&device->event_work);
+}
+
+int __init mei_cl_bus_init(void)
+{
+ return bus_register(&mei_cl_bus_type);
+}
+
+void __exit mei_cl_bus_exit(void)
+{
+ bus_unregister(&mei_cl_bus_type);
+}
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 6ce45ef2cd6..255e0853479 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -50,6 +50,8 @@ static void mei_cl_complete_handler(struct mei_cl *cl, struct mei_cl_cb *cb)
cl->reading_state = MEI_READ_COMPLETE;
if (waitqueue_active(&cl->rx_wait))
wake_up_interruptible(&cl->rx_wait);
+ else
+ mei_cl_bus_rx_event(cl);
}
}
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 27b3df2ba07..872de9d1494 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -767,6 +767,19 @@ void mei_deregister(void)
}
EXPORT_SYMBOL_GPL(mei_deregister);
+static int __init mei_init(void)
+{
+ return mei_cl_bus_init();
+}
+
+static void __exit mei_exit(void)
+{
+ mei_cl_bus_exit();
+}
+
+module_init(mei_init);
+module_exit(mei_exit);
+
MODULE_AUTHOR("Intel Corporation");
MODULE_DESCRIPTION("Intel(R) Management Engine Interface");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 0313c24a1a4..7d594bedc68 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -292,6 +292,11 @@ struct mei_cl_transport_ops {
int (*recv)(struct mei_cl_device *device, u8 *buf, size_t length);
};
+void mei_cl_bus_rx_event(struct mei_cl *cl);
+int mei_cl_bus_init(void);
+void mei_cl_bus_exit(void);
+
+
/**
* struct mei_cl_device - MEI device handle
* An mei_cl_device pointer is returned from mei_add_device()
@@ -451,7 +456,6 @@ static inline u32 mei_data2slots(size_t length)
return DIV_ROUND_UP(sizeof(struct mei_msg_hdr) + length, 4);
}
-
/*
* mei init function prototypes
*/
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 178928eaf6c..a1a582b66f0 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -197,7 +197,6 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
mei_pdev = pdev;
pci_set_drvdata(pdev, dev);
-
schedule_delayed_work(&dev->timer_work, HZ);
mutex_unlock(&mei_mutex);