kernel/include/arch/proc/arm/arm_v7a/proc.h

   1 /**
   2  *  Hyper Operating System V4 Advance
   3  *
   4  * @file  proc.h
   5  * @brief %jp{コンテキスト制御}%en{context control}
   6  *
   7  * Copyright (C) 1998-2014 by Project HOS
   8  * http://sourceforge.jp/projects/hos/
   9  */
  10
  11
  12 #ifndef _KERNEL__arch__proc__arm__arm_v7a__proc_h__
  13 #define _KERNEL__arch__proc__arm__arm_v7a__proc_h__
  14
  15
  16
  17 #define _KERNEL_IMSK_F          0x40            /**< %jp{FIQ割込みマスクビット} */
  18 #define _KERNEL_IMSK_I          0x80            /**< %jp{IRQ割込みマスクビット} */
  19
  20 #define _KERNEL_IMSK_LV0        0xc0            /**< %jp{割込みマスクレベル0(すべてマスク)} */
  21 #define _KERNEL_IMSK_LV1        0x80            /**< %jp{割込みマスクレベル1(FIQのみ許可)} */
  22 #define _KERNEL_IMSK_LV2        0x00            /**< %jp{割込みマスクレベル2(すべて許可)} */
  23
  24
  25
  26 /** %jp{コンテキスト制御ブロック} */
  27 typedef struct _kernel_t_ctxcb
  28 {
  29         VP      sp;
  30 } _KERNEL_T_CTXCB;
  31
  32 /** %jp{割込みコンテキスト制御ブロック} */
  33 typedef struct _kernel_t_ictxcb
  34 {
  35         UB  imsk;
  36         UB      intcnt;
  37         VP      isp;
  38 } _KERNEL_T_ICTXCB;
  39
  40
  41 extern _KERNEL_T_ICTXCB _kernel_ictxcb;         /**< %jp{割込みコンテキスト制御ブロック} */
  42
  43
  44
  45 #ifdef __cplusplus
  46 extern "C" {
  47 #endif
  48
  49 void    _kernel_ena_int(void);                                                                                                                                          /**< %jp{割込み許可} */
  50 void    _kernel_dis_int(void);                                                                                                                                          /**< %jp{割込み禁止} */
  51 void    _kernel_wai_int(void);                                                                                                                                          /**< %jp{割込み待ち(アイドル時の処理)} */
  52
  53 void    _kernel_cre_ctx(_KERNEL_T_CTXCB *pk_ctxcb, VP isp, FP entry, VP_INT par1, VP_INT par2);         /**< %jp{実行コンテキストの作成} */
  54 void    _kernel_rst_ctx(VP_INT par1, VP_INT par2, FP entry, VP isp);                                                            /**< %jp{実行コンテキストのリスタート} */
  55 void    _kernel_sta_ctx(_KERNEL_T_CTXCB *pk_ctxcb);                                                                                                     /**< %jp{実行コンテキストの開始} */
  56 void    _kernel_swi_ctx(_KERNEL_T_CTXCB *pk_ctxinf_nxt, _KERNEL_T_CTXCB *pk_ctxcb_now);                         /**< %jp{実行コンテキストの切替} */
  57
  58 #ifdef __cplusplus
  59 }
  60 #endif
  61
  62
  63
  64 #define _KERNEL_INI_PRC()                       do {} while (0)                                                                                                 /**< %jp{プロセッサ固有の初期化} */
  65
  66 #define _KERNEL_INI_INT(stksz, stk)     do { _kernel_ictxcb.isp = (VB *)(stk) + (stksz); } while (0)    /**< %jp{割込み初期化} */
  67 #define _KERNEL_ENA_INT()                       _kernel_ena_int()                                                                                               /**< %jp{割込み許可} */
  68 #define _KERNEL_DIS_INT()                       _kernel_dis_int()                                                                                               /**< %jp{割込み禁止} */
  69 #define _KERNEL_WAI_INT()                       _kernel_wai_int()                                                                                               /**< %jp{割込み待ち(アイドル時の処理)} */
  70
  71 #define _KERNEL_CRE_CTX(pk_ctxcb, stksz, stk, isp, entry, exinf1, exinf2)               \
  72                                                                         _kernel_cre_ctx((pk_ctxcb), (isp), (entry), (exinf1), (exinf2)) /**< %jp{実行コンテキストの作成} */
  73 #define _KERNEL_DEL_CTX(pk_ctxcb)       do {} while (0)                                                                                                 /**< %jp{実行コンテキストの削除} */
  74 #define _KERNEL_RST_CTX(pk_ctxcb, stksz, stk, isp, entry, exinf1, exinf2)               \
  75                                                                         _kernel_rst_ctx((exinf1), (exinf2), (entry), (isp))                             /**< %jp{実行コンテキストのリスタート} */
  76 #define _KERNEL_STA_CTX(pk_ctxcb)       _kernel_sta_ctx(pk_ctxcb)
  77 #define _KERNEL_SWI_CTX(pk_ctxcb_now, pk_ctxinf_nxt)                                                    \
  78                                                                         _kernel_swi_ctx((pk_ctxinf_nxt), (pk_ctxcb_now))                                /**< %jp{実行コンテキストの切替} */
  79
  80
  81 #endif  /* _KERNEL__arch__proc__arm__arm_v7a__proc_h__ */
  82
  83
  84
  85 /* end of file */