From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- drivers/s390/char/sclp_rw.h | 96 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+) create mode 100644 drivers/s390/char/sclp_rw.h (limited to 'drivers/s390/char/sclp_rw.h') diff --git a/drivers/s390/char/sclp_rw.h b/drivers/s390/char/sclp_rw.h new file mode 100644 index 00000000000..6aa7a6948bc --- /dev/null +++ b/drivers/s390/char/sclp_rw.h @@ -0,0 +1,96 @@ +/* + * drivers/s390/char/sclp_rw.h + * interface to the SCLP-read/write driver + * + * S390 version + * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation + * Author(s): Martin Peschke + * Martin Schwidefsky + */ + +#ifndef __SCLP_RW_H__ +#define __SCLP_RW_H__ + +#include + +struct mto { + u16 length; + u16 type; + u16 line_type_flags; + u8 alarm_control; + u8 _reserved[3]; +} __attribute__((packed)); + +struct go { + u16 length; + u16 type; + u32 domid; + u8 hhmmss_time[8]; + u8 th_time[3]; + u8 reserved_0; + u8 dddyyyy_date[7]; + u8 _reserved_1; + u16 general_msg_flags; + u8 _reserved_2[10]; + u8 originating_system_name[8]; + u8 job_guest_name[8]; +} __attribute__((packed)); + +struct mdb_header { + u16 length; + u16 type; + u32 tag; + u32 revision_code; +} __attribute__((packed)); + +struct mdb { + struct mdb_header header; + struct go go; +} __attribute__((packed)); + +struct msg_buf { + struct evbuf_header header; + struct mdb mdb; +} __attribute__((packed)); + +struct write_sccb { + struct sccb_header header; + struct msg_buf msg_buf; +} __attribute__((packed)); + +/* The number of empty mto buffers that can be contained in a single sccb. */ +#define NR_EMPTY_MTO_PER_SCCB ((PAGE_SIZE - sizeof(struct sclp_buffer) - \ + sizeof(struct write_sccb)) / sizeof(struct mto)) + +/* + * data structure for information about list of SCCBs (only for writing), + * will be located at the end of a SCCBs page + */ +struct sclp_buffer { + struct list_head list; /* list_head for sccb_info chain */ + struct sclp_req request; + struct write_sccb *sccb; + char *current_line; + int current_length; + int retry_count; + /* output format settings */ + unsigned short columns; + unsigned short htab; + /* statistics about this buffer */ + unsigned int mto_char_sum; /* # chars in sccb */ + unsigned int mto_number; /* # mtos in sccb */ + /* Callback that is called after reaching final status. */ + void (*callback)(struct sclp_buffer *, int); +}; + +int sclp_rw_init(void); +struct sclp_buffer *sclp_make_buffer(void *, unsigned short, unsigned short); +void *sclp_unmake_buffer(struct sclp_buffer *); +int sclp_buffer_space(struct sclp_buffer *); +int sclp_write(struct sclp_buffer *buffer, const unsigned char *, int); +int sclp_emit_buffer(struct sclp_buffer *,void (*)(struct sclp_buffer *,int)); +void sclp_set_columns(struct sclp_buffer *, unsigned short); +void sclp_set_htab(struct sclp_buffer *, unsigned short); +int sclp_chars_in_buffer(struct sclp_buffer *); + +#endif /* __SCLP_RW_H__ */ -- cgit v1.2.3