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pit.h (1973B)

      1 #ifndef PC_PIT_PIT_H
      2 #define PC_PIT_PIT_H
      3 
      4 #define LIGNE_IRQ_PIT 0
      5 #define PORT_PIT_CANAUX 0x40
      6 #define PORT_PIT_CANAL_0 PORT_PIT_CANAUX + 0
      7 #define PORT_PIT_CANAL_1 PORT_PIT_CANAUX + 1
      8 #define PORT_PIT_CANAL_2 PORT_PIT_CANAUX + 2
      9 #define PORT_PIT_COMMANDE 0x43
     10 
     11 #define FREQUENCE_PIT_MILI_HZ 1193181667
     12 
     13 typedef enum {
     14 	PIT_CANAL_0 = 0,
     15 	PIT_CANAL_1 = 1,
     16 	PIT_CANAL_2 = 2,
     17 	PIT_COMMANDE_LECTURE = 3,
     18 } PitCanal;
     19 
     20 typedef enum {
     21 	PIT_COMMANDE_VERROU = 0,
     22 	PIT_OCTET_BAS = 1,
     23 	PIT_OCTET_HAUT = 2,
     24 	PIT_OCTETS_HAUT_BAS = 3,
     25 } PitModeAcces;
     26 
     27 typedef enum {
     28 	/* Mauvaises traductions... */
     29 	PIT_MODE_INTERRUPTION_FIN_COMPTEUR = 0,
     30 	PIT_MODE_UN_COUP_RE_ACTIVABLE = 1,
     31 	PIT_MODE_GENERATEUR_FREQUENCE = 2,
     32 	PIT_MODE_GENERATEUR_ONDE_CARREE = 3,
     33 	PIT_MODE_SIGNAL_A_DECLENCHEMENT_LOGICIEL = 4,
     34 	PIT_MODE_SIGNAL_A_DECLENCHEMENT_MATERIEL = 5,
     35 } PitModeCanal;
     36 
     37 typedef struct PitCommandeMode {
     38 	bool bcd:1;
     39 	PitModeCanal mode:3;
     40 	PitModeAcces acces:2;
     41 	PitCanal canal:2;
     42 } PACKED PitCommandeMode;
     43 
     44 typedef struct PitCommandeVerrou {
     45 	PitCanal canal:2;
     46 	uint8 zero:6;
     47 } PitCommandeVerrou;
     48 
     49 typedef struct PitCommandeLecture {
     50 	uint8 un:2;
     51 	bool nePasVerouillerCompteur:1;
     52 	bool nePasVerouillerEtat:1;
     53 	bool lectureCanal0:1;
     54 	bool lectureCanal1:1;
     55 	bool lectureCanal2:1;
     56 	uint8 zero:1;
     57 } PitCommandeLecture;
     58 
     59 typedef struct PitEtatCanal {
     60 	bool bcd:1;
     61 	PitModeCanal mode:3;
     62 	PitModeAcces acces:2;
     63 	bool attenteCopieRechargeCompteur:1;
     64 	bool etatSortie:1;
     65 } PitEtatCanal;
     66 
     67 typedef void (*GestionnairePit) ();
     68 
     69 typedef struct EtatPit {
     70 	PitModeCanal modeCanal0;
     71 	PitModeCanal modeCanal1;
     72 	PitModeCanal modeCanal2;
     73 	PitModeAcces modeAcces;
     74 	
     75 	GestionnairePit gestionnairePit;
     76 } EtatPit;
     77 
     78 uint32 definirFrequenceCanal(uint32 freq, PitCanal canal);
     79 uint32 definirDelaiCanal(uint32 delai, PitCanal canal);
     80 void definirCompteurCanal(uint16 compteur, PitCanal canal);
     81 void definirModeCanal(PitModeCanal mode, PitCanal canal);
     82 void definirGestionnairePit(GestionnairePit gestionnairePit);
     83 
     84 #endif