summaryrefslogtreecommitdiffstats
path: root/drivers/misc
diff options
context:
space:
mode:
authorTomas Winkler <tomas.winkler@intel.com>2013-06-23 09:36:59 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-06-24 16:32:30 -0700
commit21767546e955c3c1705387ca4548db812382fe08 (patch)
tree742c9495d1a982b5680b9d1cd24e47bacde4e4c9 /drivers/misc
parent34cb27528398738bea94852b99ef8fb05944ec41 (diff)
downloadlinux-21767546e955c3c1705387ca4548db812382fe08.tar.gz
linux-21767546e955c3c1705387ca4548db812382fe08.tar.bz2
linux-21767546e955c3c1705387ca4548db812382fe08.zip
mei: move mei_cl_irq_write_complete to client.c
mei_cl_irq_write_complete operates on a client so move it to client.c 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/client.c60
-rw-r--r--drivers/misc/mei/client.h3
-rw-r--r--drivers/misc/mei/interrupt.c59
3 files changed, 63 insertions, 59 deletions
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index c2534ca5c6f1..788f6478b4ab 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -682,6 +682,66 @@ err:
}
/**
+ * mei_cl_irq_write_complete - write a message to device
+ * from the interrupt thread context
+ *
+ * @cl: client
+ * @cb: callback block.
+ * @slots: free slots.
+ * @cmpl_list: complete list.
+ *
+ * returns 0, OK; otherwise error.
+ */
+int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
+ s32 *slots, struct mei_cl_cb *cmpl_list)
+{
+ struct mei_device *dev = cl->dev;
+ struct mei_msg_hdr mei_hdr;
+ size_t len = cb->request_buffer.size - cb->buf_idx;
+ u32 msg_slots = mei_data2slots(len);
+
+ mei_hdr.host_addr = cl->host_client_id;
+ mei_hdr.me_addr = cl->me_client_id;
+ mei_hdr.reserved = 0;
+
+ if (*slots >= msg_slots) {
+ mei_hdr.length = len;
+ mei_hdr.msg_complete = 1;
+ /* Split the message only if we can write the whole host buffer */
+ } else if (*slots == dev->hbuf_depth) {
+ msg_slots = *slots;
+ len = (*slots * sizeof(u32)) - sizeof(struct mei_msg_hdr);
+ mei_hdr.length = len;
+ mei_hdr.msg_complete = 0;
+ } else {
+ /* wait for next time the host buffer is empty */
+ return 0;
+ }
+
+ dev_dbg(&dev->pdev->dev, "buf: size = %d idx = %lu\n",
+ cb->request_buffer.size, cb->buf_idx);
+ dev_dbg(&dev->pdev->dev, MEI_HDR_FMT, MEI_HDR_PRM(&mei_hdr));
+
+ *slots -= msg_slots;
+ if (mei_write_message(dev, &mei_hdr,
+ cb->request_buffer.data + cb->buf_idx)) {
+ cl->status = -ENODEV;
+ list_move_tail(&cb->list, &cmpl_list->list);
+ return -ENODEV;
+ }
+
+ cl->status = 0;
+ cb->buf_idx += mei_hdr.length;
+ if (mei_hdr.msg_complete) {
+ if (mei_cl_flow_ctrl_reduce(cl))
+ return -ENODEV;
+ list_move_tail(&cb->list, &dev->write_waiting_list.list);
+ }
+
+ return 0;
+}
+
+/**
* mei_cl_write - submit a write cb to mei device
assumes device_lock is locked
*
diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h
index 7dc2af7b6fba..26b157d8bad5 100644
--- a/drivers/misc/mei/client.h
+++ b/drivers/misc/mei/client.h
@@ -89,6 +89,9 @@ int mei_cl_disconnect(struct mei_cl *cl);
int mei_cl_connect(struct mei_cl *cl, struct file *file);
int mei_cl_read_start(struct mei_cl *cl, size_t length);
int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking);
+int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
+ s32 *slots, struct mei_cl_cb *cmpl_list);
+
void mei_cl_complete(struct mei_cl *cl, struct mei_cl_cb *cb);
void mei_host_client_init(struct work_struct *work);
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 7d9509a094e9..4b59cb742dee 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -282,65 +282,6 @@ static int mei_cl_irq_ioctl(struct mei_cl *cl, struct mei_cl_cb *cb,
return 0;
}
-/**
- * mei_cl_irq_write_complete - write messages to device.
- *
- * @cl: client
- * @cb: callback block.
- * @slots: free slots.
- * @cmpl_list: complete list.
- *
- * returns 0, OK; otherwise, error.
- */
-static int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
- s32 *slots, struct mei_cl_cb *cmpl_list)
-{
- struct mei_device *dev = cl->dev;
- struct mei_msg_hdr mei_hdr;
- size_t len = cb->request_buffer.size - cb->buf_idx;
- u32 msg_slots = mei_data2slots(len);
-
- mei_hdr.host_addr = cl->host_client_id;
- mei_hdr.me_addr = cl->me_client_id;
- mei_hdr.reserved = 0;
-
- if (*slots >= msg_slots) {
- mei_hdr.length = len;
- mei_hdr.msg_complete = 1;
- /* Split the message only if we can write the whole host buffer */
- } else if (*slots == dev->hbuf_depth) {
- msg_slots = *slots;
- len = (*slots * sizeof(u32)) - sizeof(struct mei_msg_hdr);
- mei_hdr.length = len;
- mei_hdr.msg_complete = 0;
- } else {
- /* wait for next time the host buffer is empty */
- return 0;
- }
-
- dev_dbg(&dev->pdev->dev, "buf: size = %d idx = %lu\n",
- cb->request_buffer.size, cb->buf_idx);
- dev_dbg(&dev->pdev->dev, MEI_HDR_FMT, MEI_HDR_PRM(&mei_hdr));
-
- *slots -= msg_slots;
- if (mei_write_message(dev, &mei_hdr,
- cb->request_buffer.data + cb->buf_idx)) {
- cl->status = -ENODEV;
- list_move_tail(&cb->list, &cmpl_list->list);
- return -ENODEV;
- }
-
-
- cl->status = 0;
- cb->buf_idx += mei_hdr.length;
- if (mei_hdr.msg_complete) {
- if (mei_cl_flow_ctrl_reduce(cl))
- return -ENODEV;
- list_move_tail(&cb->list, &dev->write_waiting_list.list);
- }
-
- return 0;
-}
/**
* mei_irq_read_handler - bottom half read routine after ISR to