diff options
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/fd.h | 26 | ||||
| -rw-r--r-- | include/uapi/linux/fdreg.h | 16 |
2 files changed, 35 insertions, 7 deletions
diff --git a/include/uapi/linux/fd.h b/include/uapi/linux/fd.h index 90fb94712c41..8b80c63b971c 100644 --- a/include/uapi/linux/fd.h +++ b/include/uapi/linux/fd.h @@ -172,7 +172,10 @@ struct floppy_drive_params { * used in succession to try to read the disk. If the FDC cannot lock onto * the disk, the next format is tried. This uses the variable 'probing'. */ - short autodetect[8]; /* autodetected formats */ + +#define FD_AUTODETECT_SIZE 8 + + short autodetect[FD_AUTODETECT_SIZE]; /* autodetected formats */ int checkfreq; /* how often should the drive be checked for disk * changes */ @@ -357,10 +360,25 @@ struct floppy_raw_cmd { int buffer_length; /* length of allocated buffer */ unsigned char rate; + +#define FD_RAW_CMD_SIZE 16 +#define FD_RAW_REPLY_SIZE 16 +#define FD_RAW_CMD_FULLSIZE (FD_RAW_CMD_SIZE + 1 + FD_RAW_REPLY_SIZE) + + /* The command may take up the space initially intended for the reply + * and the reply count. Needed for long 82078 commands such as RESTORE, + * which takes 17 command bytes. + */ + unsigned char cmd_count; - unsigned char cmd[16]; - unsigned char reply_count; - unsigned char reply[16]; + union { + struct { + unsigned char cmd[FD_RAW_CMD_SIZE]; + unsigned char reply_count; + unsigned char reply[FD_RAW_REPLY_SIZE]; + }; + unsigned char fullcmd[FD_RAW_CMD_FULLSIZE]; + }; int track; int resultcode; diff --git a/include/uapi/linux/fdreg.h b/include/uapi/linux/fdreg.h index 1318881954e1..10d33632939d 100644 --- a/include/uapi/linux/fdreg.h +++ b/include/uapi/linux/fdreg.h @@ -7,13 +7,23 @@ * Handbook", Sanches and Canton. */ -/* Fd controller regs. S&C, about page 340 */ -#define FD_STATUS 4 -#define FD_DATA 5 +/* 82077's auxiliary status registers A & B (R) */ +#define FD_SRA 0 +#define FD_SRB 1 /* Digital Output Register */ #define FD_DOR 2 +/* 82077's tape drive register (R/W) */ +#define FD_TDR 3 + +/* 82077's data rate select register (W) */ +#define FD_DSR 4 + +/* Fd controller regs. S&C, about page 340 */ +#define FD_STATUS 4 +#define FD_DATA 5 + /* Digital Input Register (read) */ #define FD_DIR 7 |