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Date: Tue, 4 Dec 2012 16:04:43 +0200
From: Tomas Winkler <tomas.winkler@...el.com>
To: gregkh@...uxfoundation.org
Cc: arnd@...db.de, alan@...ux.intel.com, linux-kernel@...r.kernel.org,
Tomas Winkler <tomas.winkler@...el.com>
Subject: [char-misc-next 14/15] mei: add common prefix to hbm function
1. use mei_hbm_ for basic host bus message function
2. use mei_hbm_cl prefix for host bus messages that operation
on behalf of a client
Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
---
drivers/misc/mei/amthif.c | 7 +++--
drivers/misc/mei/hbm.c | 56 ++++++++++++++++++++++++------------------
drivers/misc/mei/init.c | 4 +-
drivers/misc/mei/interface.h | 11 +++++---
drivers/misc/mei/interrupt.c | 10 +++---
drivers/misc/mei/iorw.c | 4 +-
drivers/misc/mei/mei_dev.h | 9 ------
drivers/misc/mei/wd.c | 2 +-
8 files changed, 53 insertions(+), 50 deletions(-)
diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c
index f9d458c..6e3cd31 100644
--- a/drivers/misc/mei/amthif.c
+++ b/drivers/misc/mei/amthif.c
@@ -98,7 +98,7 @@ void mei_amthif_host_init(struct mei_device *dev)
dev->iamthif_msg_buf = msg_buf;
- if (mei_connect(dev, &dev->iamthif_cl)) {
+ if (mei_hbm_cl_connect_req(dev, &dev->iamthif_cl)) {
dev_dbg(&dev->pdev->dev, "Failed to connect to AMTHI client\n");
dev->iamthif_cl.state = MEI_FILE_DISCONNECTED;
dev->iamthif_cl.host_client_id = 0;
@@ -558,7 +558,7 @@ int mei_amthif_irq_read(struct mei_device *dev, s32 *slots)
return -EMSGSIZE;
}
*slots -= mei_data2slots(sizeof(struct hbm_flow_control));
- if (mei_send_flow_control(dev, &dev->iamthif_cl)) {
+ if (mei_hbm_cl_flow_control_req(dev, &dev->iamthif_cl)) {
dev_dbg(&dev->pdev->dev, "iamthif flow control failed\n");
return -EIO;
}
@@ -630,7 +630,8 @@ static bool mei_clear_list(struct mei_device *dev,
if (dev->iamthif_current_cb == cb_pos) {
dev->iamthif_current_cb = NULL;
/* send flow control to iamthif client */
- mei_send_flow_control(dev, &dev->iamthif_cl);
+ mei_hbm_cl_flow_control_req(dev,
+ &dev->iamthif_cl);
}
/* free all allocated buffers */
mei_io_cb_free(cb_pos);
diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c
index e9ba51d..3c99140 100644
--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -59,13 +59,11 @@ bool mei_hbm_cl_addr_equal(struct mei_cl *cl, void *buf)
/**
- * host_start_message - mei host sends start message.
+ * mei_hbm_start_req - sends start request message.
*
* @dev: the device structure
- *
- * returns none.
*/
-void mei_host_start_message(struct mei_device *dev)
+void mei_hbm_start_req(struct mei_device *dev)
{
struct mei_msg_hdr *mei_hdr = &dev->wr_msg.hdr;
struct hbm_host_version_request *start_req;
@@ -92,13 +90,13 @@ void mei_host_start_message(struct mei_device *dev)
}
/**
- * host_enum_clients_message - host sends enumeration client request message.
+ * mei_hbm_enum_clients_req - sends enumeration client request message.
*
* @dev: the device structure
*
* returns none.
*/
-void mei_host_enum_clients_message(struct mei_device *dev)
+static void mei_hbm_enum_clients_req(struct mei_device *dev)
{
struct mei_msg_hdr *mei_hdr = &dev->wr_msg.hdr;
struct hbm_host_enum_request *enum_req;
@@ -120,8 +118,15 @@ void mei_host_enum_clients_message(struct mei_device *dev)
return;
}
+/**
+ * mei_hbm_prop_requsest - request property for a single client
+ *
+ * @dev: the device structure
+ *
+ * returns none.
+ */
-int mei_host_client_enumerate(struct mei_device *dev)
+static int mei_hbm_prop_req(struct mei_device *dev)
{
struct mei_msg_hdr *mei_hdr = &dev->wr_msg.hdr;
@@ -191,14 +196,14 @@ static void mei_hbm_stop_req_prepare(struct mei_device *dev,
}
/**
- * mei_send_flow_control - sends flow control to fw.
+ * mei_hbm_cl_flow_control_req - sends flow control requst.
*
* @dev: the device structure
- * @cl: private data of the file object
+ * @cl: client info
*
* This function returns -EIO on write failure
*/
-int mei_send_flow_control(struct mei_device *dev, struct mei_cl *cl)
+int mei_hbm_cl_flow_control_req(struct mei_device *dev, struct mei_cl *cl)
{
struct mei_msg_hdr *mei_hdr = &dev->wr_msg.hdr;
const size_t len = sizeof(struct hbm_flow_control);
@@ -213,14 +218,14 @@ int mei_send_flow_control(struct mei_device *dev, struct mei_cl *cl)
}
/**
- * mei_disconnect - sends disconnect message to fw.
+ * mei_hbm_cl_disconnect_req - sends disconnect message to fw.
*
* @dev: the device structure
- * @cl: private data of the file object
+ * @cl: a client to disconnect from
*
* This function returns -EIO on write failure
*/
-int mei_disconnect(struct mei_device *dev, struct mei_cl *cl)
+int mei_hbm_cl_disconnect_req(struct mei_device *dev, struct mei_cl *cl)
{
struct mei_msg_hdr *mei_hdr = &dev->wr_msg.hdr;
const size_t len = sizeof(struct hbm_client_connect_request);
@@ -232,14 +237,14 @@ int mei_disconnect(struct mei_device *dev, struct mei_cl *cl)
}
/**
- * mei_connect - sends connect message to fw.
+ * mei_hbm_cl_connect_req - send connection request to specific me client
*
* @dev: the device structure
- * @cl: private data of the file object
+ * @cl: a client to connect to
*
- * This function returns -EIO on write failure
+ * returns -EIO on write failure
*/
-int mei_connect(struct mei_device *dev, struct mei_cl *cl)
+int mei_hbm_cl_connect_req(struct mei_device *dev, struct mei_cl *cl)
{
struct mei_msg_hdr *mei_hdr = &dev->wr_msg.hdr;
const size_t len = sizeof(struct hbm_client_connect_request);
@@ -251,12 +256,13 @@ int mei_connect(struct mei_device *dev, struct mei_cl *cl)
}
/**
- * mei_client_disconnect_request - disconnects from request irq routine
+ * mei_client_disconnect_request - disconnect request initiated by me
+ * host sends disoconnect response
*
* @dev: the device structure.
- * @disconnect_req: disconnect request bus message.
+ * @disconnect_req: disconnect request bus message from the me
*/
-static void mei_client_disconnect_request(struct mei_device *dev,
+static void mei_hbm_fw_disconnect_req(struct mei_device *dev,
struct hbm_client_connect_request *disconnect_req)
{
struct mei_cl *cl, *next;
@@ -327,7 +333,7 @@ void mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
if (dev->dev_state == MEI_DEV_INIT_CLIENTS &&
dev->init_clients_state == MEI_START_MESSAGE) {
dev->init_clients_timer = 0;
- mei_host_enum_clients_message(dev);
+ mei_hbm_enum_clients_req(dev);
} else {
dev->recvd_msg = false;
dev_dbg(&dev->pdev->dev, "reset due to received hbm: host start\n");
@@ -390,7 +396,8 @@ void mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
dev->me_client_index++;
dev->me_client_presentation_num++;
- mei_host_client_enumerate(dev);
+ /* request property for the next client */
+ mei_hbm_prop_req(dev);
break;
@@ -406,7 +413,8 @@ void mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
dev->init_clients_state =
MEI_CLIENT_PROPERTIES_MESSAGE;
- mei_host_client_enumerate(dev);
+ /* first property reqeust */
+ mei_hbm_prop_req(dev);
} else {
dev_dbg(&dev->pdev->dev, "reset due to received host enumeration clients response bus message.\n");
mei_reset(dev, 1);
@@ -423,7 +431,7 @@ void mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
case CLIENT_DISCONNECT_REQ_CMD:
/* search for client */
disconnect_req = (struct hbm_client_connect_request *)mei_msg;
- mei_client_disconnect_request(dev, disconnect_req);
+ mei_hbm_fw_disconnect_req(dev, disconnect_req);
break;
case ME_STOP_REQ_CMD:
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index 0536170..418a85f 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -529,9 +529,9 @@ int mei_disconnect_host_client(struct mei_device *dev, struct mei_cl *cl)
cb->fop_type = MEI_FOP_CLOSE;
if (dev->mei_host_buffer_is_empty) {
dev->mei_host_buffer_is_empty = false;
- if (mei_disconnect(dev, cl)) {
+ if (mei_hbm_cl_disconnect_req(dev, cl)) {
rets = -ENODEV;
- dev_dbg(&dev->pdev->dev, "failed to call mei_disconnect.\n");
+ dev_err(&dev->pdev->dev, "failed to disconnect.\n");
goto free;
}
mdelay(10); /* Wait for hardware disconnection ready */
diff --git a/drivers/misc/mei/interface.h b/drivers/misc/mei/interface.h
index ca73299..90a3dfd 100644
--- a/drivers/misc/mei/interface.h
+++ b/drivers/misc/mei/interface.h
@@ -69,12 +69,15 @@ void mei_watchdog_register(struct mei_device *dev);
*/
void mei_watchdog_unregister(struct mei_device *dev);
+int mei_other_client_is_connecting(struct mei_device *dev, struct mei_cl *cl);
int mei_flow_ctrl_reduce(struct mei_device *dev, struct mei_cl *cl);
-int mei_send_flow_control(struct mei_device *dev, struct mei_cl *cl);
+void mei_hbm_start_req(struct mei_device *dev);
-int mei_disconnect(struct mei_device *dev, struct mei_cl *cl);
-int mei_other_client_is_connecting(struct mei_device *dev, struct mei_cl *cl);
-int mei_connect(struct mei_device *dev, struct mei_cl *cl);
+int mei_hbm_cl_flow_control_req(struct mei_device *dev, struct mei_cl *cl);
+int mei_hbm_cl_disconnect_req(struct mei_device *dev, struct mei_cl *cl);
+int mei_hbm_cl_connect_req(struct mei_device *dev, struct mei_cl *cl);
+
+void mei_host_client_init(struct work_struct *work);
#endif /* _MEI_INTERFACE_H_ */
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 9cbf148..eb744cc 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -157,7 +157,7 @@ static int _mei_irq_thread_close(struct mei_device *dev, s32 *slots,
*slots -= mei_data2slots(sizeof(struct hbm_client_connect_request));
- if (mei_disconnect(dev, cl)) {
+ if (mei_hbm_cl_disconnect_req(dev, cl)) {
cl->status = 0;
cb_pos->buf_idx = 0;
list_move_tail(&cb_pos->list, &cmpl_list->list);
@@ -407,7 +407,7 @@ static int _mei_irq_thread_read(struct mei_device *dev, s32 *slots,
*slots -= mei_data2slots(sizeof(struct hbm_flow_control));
- if (mei_send_flow_control(dev, cl)) {
+ if (mei_hbm_cl_flow_control_req(dev, cl)) {
cl->status = -ENODEV;
cb_pos->buf_idx = 0;
list_move_tail(&cb_pos->list, &cmpl_list->list);
@@ -443,8 +443,8 @@ static int _mei_irq_thread_ioctl(struct mei_device *dev, s32 *slots,
}
cl->state = MEI_FILE_CONNECTING;
- *slots -= mei_data2slots(sizeof(struct hbm_client_connect_request));
- if (mei_connect(dev, cl)) {
+ *slots -= mei_data2slots(sizeof(struct hbm_client_connect_request));
+ if (mei_hbm_cl_connect_req(dev, cl)) {
cl->status = -ENODEV;
cb_pos->buf_idx = 0;
list_del(&cb_pos->list);
@@ -927,7 +927,7 @@ irqreturn_t mei_interrupt_thread_handler(int irq, void *dev_id)
/* link is established
* start sending messages.
*/
- mei_host_start_message(dev);
+ mei_hbm_start_req(dev);
mutex_unlock(&dev->device_lock);
return IRQ_HANDLED;
} else {
diff --git a/drivers/misc/mei/iorw.c b/drivers/misc/mei/iorw.c
index 7ccc3d8..d8e08bc 100644
--- a/drivers/misc/mei/iorw.c
+++ b/drivers/misc/mei/iorw.c
@@ -258,7 +258,7 @@ int mei_ioctl_connect_client(struct file *file,
&& !mei_other_client_is_connecting(dev, cl)) {
dev_dbg(&dev->pdev->dev, "Sending Connect Message\n");
dev->mei_host_buffer_is_empty = false;
- if (mei_connect(dev, cl)) {
+ if (mei_hbm_cl_connect_req(dev, cl)) {
dev_dbg(&dev->pdev->dev, "Sending connect message - failed\n");
rets = -ENODEV;
goto end;
@@ -350,7 +350,7 @@ int mei_start_read(struct mei_device *dev, struct mei_cl *cl)
cl->read_cb = cb;
if (dev->mei_host_buffer_is_empty) {
dev->mei_host_buffer_is_empty = false;
- if (mei_send_flow_control(dev, cl)) {
+ if (mei_hbm_cl_flow_control_req(dev, cl)) {
rets = -ENODEV;
goto err;
}
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 1017e54..3da92c7 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -383,15 +383,6 @@ static inline bool mei_cl_cmp_id(const struct mei_cl *cl1,
}
-
-/*
- * MEI Host Client Functions
- */
-void mei_host_start_message(struct mei_device *dev);
-void mei_host_enum_clients_message(struct mei_device *dev);
-int mei_host_client_enumerate(struct mei_device *dev);
-void mei_host_client_init(struct work_struct *work);
-
/*
* MEI interrupt functions prototype
*/
diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c
index 9851de4..3c5b2b0 100644
--- a/drivers/misc/mei/wd.c
+++ b/drivers/misc/mei/wd.c
@@ -79,7 +79,7 @@ int mei_wd_host_init(struct mei_device *dev)
return -ENOENT;
}
- if (mei_connect(dev, &dev->wd_cl)) {
+ if (mei_hbm_cl_connect_req(dev, &dev->wd_cl)) {
dev_err(&dev->pdev->dev, "wd: failed to connect to the client\n");
dev->wd_cl.state = MEI_FILE_DISCONNECTED;
dev->wd_cl.host_client_id = 0;
--
1.7.4.4
--
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