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Implement WriteBack cache (Fixes Issue 155)

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This commit is contained in:
Romuald Conty 2011-05-09 19:34:00 +00:00
parent 95914345e1
commit 009d851771
2 changed files with 107 additions and 9 deletions
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8
libnfc/chips/pn53x.h
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@ -151,6 +151,10 @@ struct pn53x_io {
int (*receive)(nfc_device_t * pnd, byte_t * pbtData, const size_t szDataLen);
};
/* defines */
#define PN53X_CACHE_REGISTER_MIN_ADDRESS PN53X_REG_CIU_Mode
#define PN53X_CACHE_REGISTER_MAX_ADDRESS PN53X_REG_CIUColl
struct pn53x_data {
/** Chip type (PN531, PN532 or PN533)*/
pn53x_type type;
@ -170,6 +174,10 @@ struct pn53x_data {
uint8_t ui8LastCommand;
/** Interframe timer correction */
int16_t timer_correction;
/** WriteBack cache */
uint8_t wb_data[PN53X_CACHE_REGISTER_MAX_ADDRESS-PN53X_CACHE_REGISTER_MIN_ADDRESS];
uint8_t wb_mask[PN53X_CACHE_REGISTER_MAX_ADDRESS-PN53X_CACHE_REGISTER_MIN_ADDRESS];
bool wb_trigged;
};
#define CHIP_DATA(pnd) ((struct pn53x_data*)(pnd->chip_data))