kernel/power/tuxonice_ui.h

   1 /*
   2  * kernel/power/tuxonice_ui.h
   3  *
   4  * Copyright (C) 2004-2010 Nigel Cunningham (nigel at tuxonice net)
   5  */
   6
   7 enum {
   8         DONT_CLEAR_BAR,
   9         CLEAR_BAR
  10 };
  11
  12 enum {
  13         /* Userspace -> Kernel */
  14         USERUI_MSG_ABORT = 0x11,
  15         USERUI_MSG_SET_STATE = 0x12,
  16         USERUI_MSG_GET_STATE = 0x13,
  17         USERUI_MSG_GET_DEBUG_STATE = 0x14,
  18         USERUI_MSG_SET_DEBUG_STATE = 0x15,
  19         USERUI_MSG_SPACE = 0x18,
  20         USERUI_MSG_GET_POWERDOWN_METHOD = 0x1A,
  21         USERUI_MSG_SET_POWERDOWN_METHOD = 0x1B,
  22         USERUI_MSG_GET_LOGLEVEL = 0x1C,
  23         USERUI_MSG_SET_LOGLEVEL = 0x1D,
  24         USERUI_MSG_PRINTK = 0x1E,
  25
  26         /* Kernel -> Userspace */
  27         USERUI_MSG_MESSAGE = 0x21,
  28         USERUI_MSG_PROGRESS = 0x22,
  29         USERUI_MSG_POST_ATOMIC_RESTORE = 0x25,
  30
  31         USERUI_MSG_MAX,
  32 };
  33
  34 struct userui_msg_params {
  35         u32 a, b, c, d;
  36         char text[255];
  37 };
  38
  39 struct ui_ops {
  40         char (*wait_for_key) (int timeout);
  41          u32(*update_status) (u32 value, u32 maximum, const char *fmt, ...);
  42         void (*prepare_status) (int clearbar, const char *fmt, ...);
  43         void (*cond_pause) (int pause, char *message);
  44         void (*abort) (int result_code, const char *fmt, ...);
  45         void (*prepare) (void);
  46         void (*cleanup) (void);
  47         void (*message) (u32 section, u32 level, u32 normally_logged, const char *fmt, ...);
  48 };
  49
  50 extern struct ui_ops *toi_current_ui;
  51
  52 #define toi_update_status(val, max, fmt, args...) \
  53  (toi_current_ui ? (toi_current_ui->update_status) (val, max, fmt, ##args) : \
  54         max)
  55
  56 #define toi_prepare_console(void) \
  57         do { if (toi_current_ui) \
  58                 (toi_current_ui->prepare)(); \
  59         } while (0)
  60
  61 #define toi_cleanup_console(void) \
  62         do { if (toi_current_ui) \
  63                 (toi_current_ui->cleanup)(); \
  64         } while (0)
  65
  66 #define abort_hibernate(result, fmt, args...) \
  67         do { if (toi_current_ui) \
  68                 (toi_current_ui->abort)(result, fmt, ##args); \
  69              else { \
  70                 set_abort_result(result); \
  71              } \
  72         } while (0)
  73
  74 #define toi_cond_pause(pause, message) \
  75         do { if (toi_current_ui) \
  76                 (toi_current_ui->cond_pause)(pause, message); \
  77         } while (0)
  78
  79 #define toi_prepare_status(clear, fmt, args...) \
  80         do { if (toi_current_ui) \
  81                 (toi_current_ui->prepare_status)(clear, fmt, ##args); \
  82              else \
  83                 printk(KERN_INFO fmt "%s", ##args, "\n"); \
  84         } while (0)
  85
  86 #define toi_message(sn, lev, log, fmt, a...) \
  87 do { \
  88         if (toi_current_ui && (!sn || test_debug_state(sn))) \
  89                 toi_current_ui->message(sn, lev, log, fmt, ##a); \
  90 } while (0)
  91
  92 __exit void toi_ui_cleanup(void);
  93 extern int toi_ui_init(void);
  94 extern void toi_ui_exit(void);
  95 extern int toi_register_ui_ops(struct ui_ops *this_ui);
  96 extern void toi_remove_ui_ops(struct ui_ops *this_ui);