drivers/misc/samsung/scsc/scsc_wifilogger_ring_wakelock.c

   1 /******************************************************************************
   2  *
   3  *   Copyright (c) 2018 Samsung Electronics Co., Ltd. All rights reserved.
   4  *
   5  *****************************************************************************/
   6 /* Implements */
   7 #include "scsc_wifilogger_ring_wakelock.h"
   8
   9 /* Uses */
  10 #include "scsc_wifilogger_ring_wakelock_api.h"
  11 #include "scsc_wifilogger_internal.h"
  12
  13 static struct scsc_wlog_ring *the_ring;
  14 u32 wring_lev;
  15
  16 #ifdef CONFIG_SCSC_WIFILOGGER_DEBUGFS
  17 #include "scsc_wifilogger_debugfs.h"
  18
  19 static struct scsc_wlog_debugfs_info di;
  20
  21 #endif /* CONFIG_SCSC_WIFILOGGER_DEBUGFS */
  22
  23 bool scsc_wifilogger_ring_wakelock_init(void)
  24 {
  25         struct scsc_wlog_ring *r = NULL;
  26 #ifdef CONFIG_SCSC_WIFILOGGER_DEBUGFS
  27         struct scsc_ring_test_object *rto = NULL;
  28 #endif
  29
  30         r = scsc_wlog_ring_create(WLOGGER_RWAKELOCK_NAME,
  31                                   RING_BUFFER_ENTRY_FLAGS_HAS_BINARY,
  32                                   ENTRY_TYPE_WAKE_LOCK, 65536,
  33                                   WIFI_LOGGER_WAKE_LOCK_SUPPORTED,
  34                                   NULL, NULL, NULL);
  35
  36         if (!r) {
  37                 SCSC_TAG_ERR(WLOG, "Failed to CREATE WiFiLogger ring: %s\n",
  38                              WLOGGER_RWAKELOCK_NAME);
  39                 return false;
  40         }
  41         scsc_wlog_register_verbosity_reference(r, &wring_lev);
  42
  43         if (!scsc_wifilogger_register_ring(r)) {
  44                 SCSC_TAG_ERR(WLOG, "Failed to REGISTER WiFiLogger ring: %s\n",
  45                              WLOGGER_RWAKELOCK_NAME);
  46                 scsc_wlog_ring_destroy(r);
  47                 return false;
  48         }
  49         the_ring = r;
  50
  51 #ifdef CONFIG_SCSC_WIFILOGGER_DEBUGFS
  52         rto = init_ring_test_object(the_ring);
  53         if (rto)
  54                 scsc_register_common_debugfs_entries(the_ring->st.name, rto, &di);
  55 #endif
  56
  57         return true;
  58 }
  59
  60 /**** Producer API ******/
  61
  62 int scsc_wifilogger_ring_wakelock_action(u32 verbose_level, int status,
  63                                          char *wl_name, int reason)
  64 {
  65         u64 timestamp;
  66         struct scsc_wake_lock_event wl_event;
  67
  68         if (!the_ring)
  69                 return 0;
  70
  71         timestamp = local_clock();
  72         SCSC_TAG_DBG4(WLOG, "EL -- WAKELOCK[%s] - status:%d   reason:%d   @0x%x\n",
  73                       wl_name, status, reason, timestamp);
  74
  75         wl_event.status = status;
  76         wl_event.reason = reason;
  77         return scsc_wlog_write_record(the_ring, wl_name, strlen(wl_name), &wl_event,
  78                                       sizeof(wl_event), verbose_level, timestamp);
  79 }
  80 EXPORT_SYMBOL(scsc_wifilogger_ring_wakelock_action);
  81