Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/drivers/libdriver/driver.h
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
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SearchContext: - none - 3 - 10
1 /* Types and constants shared between the generic and device dependent 2 * device driver code. 3 */ 4 5 #define _POSIX_SOURCE 1 /* tell headers to include POSIX stuff */ 6 #define _MINIX 1 /* tell headers to include MINIX stuff */ 7 #define _SYSTEM 1 /* get negative error number in <errno.h> */ 8 9 /* The following are so basic, all the *.c files get them automatically. */ 10 #include <minix/config.h> /* MUST be first */ 11 #include <ansi.h> /* MUST be second */ 12 #include <minix/type.h> 13 #include <minix/ipc.h> 14 #include <minix/com.h> 15 #include <minix/callnr.h> 16 #include <sys/types.h> 17 #include <minix/const.h> 18 #include <minix/syslib.h> 19 #include <minix/sysutil.h> 20 21 #include <string.h> 22 #include <limits.h> 23 #include <stddef.h> 24 #include <errno.h> 25 26 #include <minix/partition.h> 27 #include <minix/u64.h> 28 29 /* Info about and entry points into the device dependent code. */ 30 struct driver { 31 _PROTOTYPE( char *(*dr_name), (void) ); 32 _PROTOTYPE( int (*dr_open), (struct driver *dp, message *m_ptr) ); 33 _PROTOTYPE( int (*dr_close), (struct driver *dp, message *m_ptr) ); 34 _PROTOTYPE( int (*dr_ioctl), (struct driver *dp, message *m_ptr) ); 35 _PROTOTYPE( struct device *(*dr_prepare), (int device) ); 36 _PROTOTYPE( int (*dr_transfer), (int proc_nr, int opcode, off_t position, 37 iovec_t *iov, unsigned nr_req) ); 38 _PROTOTYPE( void (*dr_cleanup), (void) ); 39 _PROTOTYPE( void (*dr_geometry), (struct partition *entry) ); 40 _PROTOTYPE( void (*dr_signal), (struct driver *dp, message *m_ptr) ); 41 _PROTOTYPE( void (*dr_alarm), (struct driver *dp, message *m_ptr) ); 42 _PROTOTYPE( int (*dr_cancel), (struct driver *dp, message *m_ptr) ); 43 _PROTOTYPE( int (*dr_select), (struct driver *dp, message *m_ptr) ); 44 _PROTOTYPE( int (*dr_other), (struct driver *dp, message *m_ptr) ); 45 _PROTOTYPE( int (*dr_hw_int), (struct driver *dp, message *m_ptr) ); 46 }; 47 48 #if (CHIP == INTEL) 49 50 /* Number of bytes you can DMA before hitting a 64K boundary: */ 51 #define dma_bytes_left(phys) \ 52 ((unsigned) (sizeof(int) == 2 ? 0 : 0x10000) - (unsigned) ((phys) & 0xFFFF)) 53 54 #endif /* CHIP == INTEL */ 55 56 /* Base and size of a partition in bytes. */ 57 struct device { 58 u64_t dv_base; 59 u64_t dv_size; 60 }; 61 62 #define NIL_DEV ((struct device *) 0) 63 64 /* Functions defined by driver.c: */ 65 _PROTOTYPE( void driver_task, (struct driver *dr) ); 66 _PROTOTYPE( char *no_name, (void) ); 67 _PROTOTYPE( int do_nop, (struct driver *dp, message *m_ptr) ); 68 _PROTOTYPE( struct device *nop_prepare, (int device) ); 69 _PROTOTYPE( void nop_cleanup, (void) ); 70 _PROTOTYPE( void nop_task, (void) ); 71 _PROTOTYPE( void nop_signal, (struct driver *dp, message *m_ptr) ); 72 _PROTOTYPE( void nop_alarm, (struct driver *dp, message *m_ptr) ); 73 _PROTOTYPE( int nop_cancel, (struct driver *dp, message *m_ptr) ); 74 _PROTOTYPE( int nop_select, (struct driver *dp, message *m_ptr) ); 75 _PROTOTYPE( int do_diocntl, (struct driver *dp, message *m_ptr) ); 76 77 /* Parameters for the disk drive. */ 78 #define SECTOR_SIZE 512 /* physical sector size in bytes */ 79 #define SECTOR_SHIFT 9 /* for division */ 80 #define SECTOR_MASK 511 /* and remainder */ 81 82 /* Size of the DMA buffer buffer in bytes. */ 83 #define USE_EXTRA_DMA_BUF 0 /* usually not needed */ 84 #define DMA_BUF_SIZE (DMA_SECTORS * SECTOR_SIZE) 85 86 #if (CHIP == INTEL) 87 extern u8_t *tmp_buf; /* the DMA buffer */ 88 #else 89 extern u8_t tmp_buf[]; /* the DMA buffer */ 90 #endif 91 extern phys_bytes tmp_phys; /* phys address of DMA buffer */
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