| 34,10 → 34,16 |
|---|
| #include <synch/waitq.h> |
| #include <synch/spinlock.h> |
| |
| #define CHARDEV_BUFLEN 10 |
| #define CHARDEV_BUFLEN 512 |
| |
| typedef void (* ready_func_t)(void); |
| /* Character device operations interface. */ |
| struct chardev_operations { |
| void (* suspend)(void); /**< Suspend pushing characters. */ |
| void (* resume)(void); /**< Resume pushing characters. */ |
| }; |
| |
| typedef struct chardev_operations chardev_operations_t; |
| |
| /** Character input device. */ |
| struct chardev { |
| waitq_t wq; |
| 45,9 → 51,10 |
|---|
| __u8 buffer[CHARDEV_BUFLEN]; |
| count_t counter; |
| index_t index; |
| ready_func_t ready_func; /**< Function to re-enable input from the device. */ |
| chardev_operations_t *op; /**< Implementation of chardev operations. */ |
| }; |
| |
| extern void chardev_initialize(chardev_t *chardev, ready_func_t r); |
| extern void chardev_initialize(chardev_t *chardev, chardev_operations_t *op); |
| void chardev_push_character(chardev_t *chardev, __u8 ch); |
| |
| #endif /* __CHARDEV_H__ */ |