Viewing file:  hwc_rw.h (3.3 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
/*
* drivers/s390/char/hwc_rw.h
* interface to the HWC-read/write driver
*
* S390 version
* Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
* Author(s): Martin Peschke <mpeschke@de.ibm.com>
*/
#ifndef __HWC_RW_H__
#define __HWC_RW_H__
#include <linux/ioctl.h>
typedef struct {
void (*move_input) (unsigned char *, unsigned int);
void (*wake_up) (void);
} hwc_high_level_calls_t;
struct _hwc_request;
typedef void hwc_callback_t (struct _hwc_request *);
typedef struct _hwc_request {
void *block;
u32 word;
hwc_callback_t *callback;
void *data;
} __attribute__ ((packed))
hwc_request_t;
#define HWC_ASCEBC(x) ((MACHINE_IS_VM ? _ascebc[x] : _ascebc_500[x]))
#define HWC_EBCASC_STR(s,c) ((MACHINE_IS_VM ? EBCASC(s,c) : EBCASC_500(s,c)))
#define HWC_ASCEBC_STR(s,c) ((MACHINE_IS_VM ? ASCEBC(s,c) : ASCEBC_500(s,c)))
#define IN_HWCB 1
#define IN_WRITE_BUF 2
#define IN_BUFS_TOTAL (IN_HWCB | IN_WRITE_BUF)
typedef unsigned short int ioctl_htab_t;
typedef unsigned char ioctl_echo_t;
typedef unsigned short int ioctl_cols_t;
typedef signed char ioctl_nl_t;
typedef unsigned short int ioctl_obuf_t;
typedef unsigned char ioctl_case_t;
typedef unsigned char ioctl_delim_t;
typedef struct {
ioctl_htab_t width_htab;
ioctl_echo_t echo;
ioctl_cols_t columns;
ioctl_nl_t final_nl;
ioctl_obuf_t max_hwcb;
ioctl_obuf_t kmem_hwcb;
ioctl_case_t tolower;
ioctl_delim_t delim;
} hwc_ioctls_t;
static hwc_ioctls_t _hwc_ioctls;
#define HWC_IOCTL_LETTER 'B'
#define TIOCHWCSHTAB _IOW(HWC_IOCTL_LETTER, 0, _hwc_ioctls.width_htab)
#define TIOCHWCSECHO _IOW(HWC_IOCTL_LETTER, 1, _hwc_ioctls.echo)
#define TIOCHWCSCOLS _IOW(HWC_IOCTL_LETTER, 2, _hwc_ioctls.columns)
#define TIOCHWCSNL _IOW(HWC_IOCTL_LETTER, 4, _hwc_ioctls.final_nl)
#define TIOCHWCSOBUF _IOW(HWC_IOCTL_LETTER, 5, _hwc_ioctls.max_hwcb)
#define TIOCHWCSINIT _IO(HWC_IOCTL_LETTER, 6)
#define TIOCHWCSCASE _IOW(HWC_IOCTL_LETTER, 7, _hwc_ioctls.tolower)
#define TIOCHWCSDELIM _IOW(HWC_IOCTL_LETTER, 9, _hwc_ioctls.delim)
#define TIOCHWCGHTAB _IOR(HWC_IOCTL_LETTER, 10, _hwc_ioctls.width_htab)
#define TIOCHWCGECHO _IOR(HWC_IOCTL_LETTER, 11, _hwc_ioctls.echo)
#define TIOCHWCGCOLS _IOR(HWC_IOCTL_LETTER, 12, _hwc_ioctls.columns)
#define TIOCHWCGNL _IOR(HWC_IOCTL_LETTER, 14, _hwc_ioctls.final_nl)
#define TIOCHWCGOBUF _IOR(HWC_IOCTL_LETTER, 15, _hwc_ioctls.max_hwcb)
#define TIOCHWCGINIT _IOR(HWC_IOCTL_LETTER, 16, _hwc_ioctls)
#define TIOCHWCGCASE _IOR(HWC_IOCTL_LETTER, 17, _hwc_ioctls.tolower)
#define TIOCHWCGDELIM _IOR(HWC_IOCTL_LETTER, 19, _hwc_ioctls.delim)
#define TIOCHWCGKBUF _IOR(HWC_IOCTL_LETTER, 20, _hwc_ioctls.max_hwcb)
#define TIOCHWCGCURR _IOR(HWC_IOCTL_LETTER, 21, _hwc_ioctls)
#ifndef __HWC_RW_C__
extern int hwc_init (void);
extern int hwc_write (int from_user, const unsigned char *, unsigned int);
extern unsigned int hwc_chars_in_buffer (unsigned char);
extern unsigned int hwc_write_room (unsigned char);
extern void hwc_flush_buffer (unsigned char);
extern void hwc_unblank (void);
extern signed int hwc_ioctl (unsigned int, unsigned long);
extern void do_hwc_interrupt (void);
extern int hwc_printk (const char *,...);
extern signed int hwc_register_calls (hwc_high_level_calls_t *);
extern signed int hwc_unregister_calls (hwc_high_level_calls_t *);
extern int hwc_send (hwc_request_t *);
#endif
#endif
|