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authorAlexander Usyskin <alexander.usyskin@intel.com>2016-01-08 00:49:21 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-02-06 22:11:06 -0800
commitfdd9b8655933c3eb3154fe1ed351c17b654258bd (patch)
treefd8fe3dc39af6e46da838d9acdc395cce0420f1d /drivers/misc/mei/mei_dev.h
parentb86d1bd8d1a0f67f12b62e5ee724514f19dc6bf8 (diff)
mei: wd: drop the watchdog code from the core mei driver
Instead of integrating the iAMT watchdog in the mei core driver we will create a watchdog device on the mei client bus and create a driver for it. This patch removes the watchdog code from the mei core driver. Signed-off-by: Alexander Usyskin <alexander.usyskin@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/mei/mei_dev.h')
-rw-r--r--drivers/misc/mei/mei_dev.h61
1 files changed, 2 insertions, 59 deletions
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index b54d9d9cacea..da613268480c 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -18,7 +18,7 @@
#define _MEI_DEV_H_
#include <linux/types.h>
-#include <linux/watchdog.h>
+#include <linux/cdev.h>
#include <linux/poll.h>
#include <linux/mei.h>
#include <linux/mei_cl_bus.h>
@@ -26,33 +26,13 @@
#include "hw.h"
#include "hbm.h"
-/*
- * watch dog definition
- */
-#define MEI_WD_HDR_SIZE 4
-#define MEI_WD_STOP_MSG_SIZE MEI_WD_HDR_SIZE
-#define MEI_WD_START_MSG_SIZE (MEI_WD_HDR_SIZE + 16)
-
-#define MEI_WD_DEFAULT_TIMEOUT 120 /* seconds */
-#define MEI_WD_MIN_TIMEOUT 120 /* seconds */
-#define MEI_WD_MAX_TIMEOUT 65535 /* seconds */
-
-#define MEI_WD_STOP_TIMEOUT 10 /* msecs */
-
-#define MEI_WD_STATE_INDEPENDENCE_MSG_SENT (1 << 0)
-
-#define MEI_RD_MSG_BUF_SIZE (128 * sizeof(u32))
-
/*
* AMTHI Client UUID
*/
extern const uuid_le mei_amthif_guid;
-/*
- * Watchdog Client UUID
- */
-extern const uuid_le mei_wd_guid;
+#define MEI_RD_MSG_BUF_SIZE (128 * sizeof(u32))
/*
* Number of Maximum MEI Clients
@@ -78,7 +58,6 @@ extern const uuid_le mei_wd_guid;
*/
#define MEI_HOST_CLIENT_ID_ANY (-1)
#define MEI_HBM_HOST_CLIENT_ID 0 /* not used, just for documentation */
-#define MEI_WD_HOST_CLIENT_ID 1
#define MEI_IAMTHIF_HOST_CLIENT_ID 2
@@ -123,12 +102,6 @@ enum mei_file_transaction_states {
MEI_READ_COMPLETE
};
-enum mei_wd_states {
- MEI_WD_IDLE,
- MEI_WD_RUNNING,
- MEI_WD_STOPPING,
-};
-
/**
* enum mei_cb_file_ops - file operation associated with the callback
* @MEI_FOP_READ: read
@@ -404,7 +377,6 @@ const char *mei_pg_state_str(enum mei_pg_state state);
* @wait_hw_ready : wait queue for receive HW ready message form FW
* @wait_pg : wait queue for receive PG message from FW
* @wait_hbm_start : wait queue for receive HBM start message from FW
- * @wait_stop_wd : wait queue for receive WD stop message from FW
*
* @reset_count : number of consecutive resets
* @dev_state : device state
@@ -435,12 +407,6 @@ const char *mei_pg_state_str(enum mei_pg_state state);
*
* @allow_fixed_address: allow user space to connect a fixed client
*
- * @wd_cl : watchdog client
- * @wd_state : watchdog client state
- * @wd_pending : watchdog command is pending
- * @wd_timeout : watchdog expiration timeout
- * @wd_data : watchdog message buffer
- *
* @amthif_cmd_list : amthif list for cmd waiting
* @amthif_rd_complete_list : amthif list for reading completed cmd data
* @iamthif_file_object : file for current amthif operation
@@ -486,7 +452,6 @@ struct mei_device {
wait_queue_head_t wait_hw_ready;
wait_queue_head_t wait_pg;
wait_queue_head_t wait_hbm_start;
- wait_queue_head_t wait_stop_wd;
/*
* mei device states
@@ -531,13 +496,6 @@ struct mei_device {
bool allow_fixed_address;
- struct mei_cl wd_cl;
- enum mei_wd_states wd_state;
- bool wd_pending;
- u16 wd_timeout;
- unsigned char wd_data[MEI_WD_START_MSG_SIZE];
-
-
/* amthif list for cmd waiting */
struct mei_cl_cb amthif_cmd_list;
/* driver managed amthif list for reading completed amthif cmd data */
@@ -649,21 +607,6 @@ int mei_amthif_irq_read_msg(struct mei_cl *cl,
struct mei_cl_cb *complete_list);
int mei_amthif_irq_read(struct mei_device *dev, s32 *slots);
-int mei_wd_send(struct mei_device *dev);
-int mei_wd_stop(struct mei_device *dev);
-int mei_wd_host_init(struct mei_device *dev, struct mei_me_client *me_cl);
-/*
- * mei_watchdog_register - Registering watchdog interface
- * once we got connection to the WD Client
- * @dev: mei device
- */
-int mei_watchdog_register(struct mei_device *dev);
-/*
- * mei_watchdog_unregister - Unregistering watchdog interface
- * @dev: mei device
- */
-void mei_watchdog_unregister(struct mei_device *dev);
-
/*
* Register Access Function
*/