wlan: Blocking request for firmware memory dump
Currently,fw memory dump requests from cfg80211 followed
an event based protocol.This has been modified to a
blocking mechanism with a timeout.Now only one fw mem dump
request can be serviced at a time.Request through ioctl is
also changed to the same.Status is sent to userspace in case of
requests through cfg80211 layer.
Change-Id: I359c71f995192ccb6dc766176160f3e1c1244787
CRs-Fixed: 930754
diff --git a/CORE/HDD/inc/wlan_hdd_main.h b/CORE/HDD/inc/wlan_hdd_main.h
index 8f39865..66a6e71 100644
--- a/CORE/HDD/inc/wlan_hdd_main.h
+++ b/CORE/HDD/inc/wlan_hdd_main.h
@@ -1227,12 +1227,34 @@
#define PROCFS_MEMDUMP_DIR "debug"
#define PROCFS_MEMDUMP_NAME "fwdump"
#define FW_MEM_DUMP_REQ_ID 1
+#define FW_MEM_DUMP_TIMEOUT_MS 3000
+#define FW_MEM_DUMP_MAGIC 0x3C3A2D44
+
+/**
+ * struct hdd_fw_mem_dump_req_ctx - hdd fw mem dump req context
+ *
+ * @magic : magic for validating cfg80211 requests
+ * @status: status for cfg80211 requests
+ * @pHDDCtx: ptr to HDD context
+ * @req_completion: completion variable for fw mem dump
+ */
+struct hdd_fw_mem_dump_req_ctx {
+ uint32_t magic;
+ bool status;
+ struct completion req_completion;
+};
+
+/**
+ * callback type to check fw mem dump request.Called from SVC
+ * context and update status in HDD.
+ */
+typedef void (*hdd_fw_mem_dump_req_cb)(struct hdd_fw_mem_dump_req_ctx *);
int memdump_init(void);
int memdump_deinit(void);
void wlan_hdd_fw_mem_dump_cb(void *,tAniFwrDumpRsp *);
int wlan_hdd_fw_mem_dump_req(hdd_context_t * pHddCtx);
-
+void wlan_hdd_fw_mem_dump_req_cb(struct hdd_fw_mem_dump_req_ctx*);
#ifdef WLAN_FEATURE_LINK_LAYER_STATS
/**
* struct hdd_ll_stats_context - hdd link layer stats context