42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
#ifndef _MINIX_CHARDRIVER_H
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#define _MINIX_CHARDRIVER_H
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#include <minix/driver.h>
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/* Entry points into the device dependent code of character drivers. */
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struct chardriver {
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int(*cdr_open) (message *m_ptr);
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int(*cdr_close) (message *m_ptr);
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int(*cdr_ioctl) (message *m_ptr);
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struct device *(*cdr_prepare)(dev_t device);
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int(*cdr_transfer) (endpoint_t endpt, int opcode, u64_t position,
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iovec_t *iov, unsigned int nr_req, endpoint_t user_endpt, unsigned int
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flags);
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void(*cdr_cleanup) (void);
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void(*cdr_alarm) (message *m_ptr);
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int(*cdr_cancel) (message *m_ptr);
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int(*cdr_select) (message *m_ptr);
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int(*cdr_other) (message *m_ptr);
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};
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#define CHARDRIVER_SYNC 0 /* use the synchronous protocol */
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#define CHARDRIVER_ASYNC 1 /* use the asynchronous protocol */
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#define IS_CDEV_MINOR_RQ(type) (IS_DEV_RQ(type) && (type) != DEV_STATUS)
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/* Functions defined by libchardriver. */
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void chardriver_announce(void);
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void chardriver_process(struct chardriver *cdp, int driver_type, message
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*m_ptr, int ipc_status);
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void chardriver_terminate(void);
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void chardriver_task(struct chardriver *cdp, int driver_type);
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int do_nop(message *m_ptr);
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void nop_cleanup(void);
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void nop_alarm(message *m_ptr);
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int nop_cancel(message *m_ptr);
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int nop_select(message *m_ptr);
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int nop_ioctl(message *m_ptr);
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#endif /* _MINIX_CHARDRIVER_H */
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