diff options
Diffstat (limited to 'sys/i386/isa/atapi.h')
| -rw-r--r-- | sys/i386/isa/atapi.h | 58 |
1 files changed, 56 insertions, 2 deletions
diff --git a/sys/i386/isa/atapi.h b/sys/i386/isa/atapi.h index cb46dcc..f22a5a2 100644 --- a/sys/i386/isa/atapi.h +++ b/sys/i386/isa/atapi.h @@ -11,7 +11,7 @@ * or modify this software as long as this message is kept with the software, * all derivative works or modified versions. * - * Version 1.8, Thu Sep 28 20:24:38 MSK 1995 + * Version 1.9, Thu Oct 12 15:53:50 MSK 1995 */ /* @@ -190,10 +190,64 @@ struct atapires { u_char error; /* error register contents */ }; +struct atapidrv { /* delayed attach info */ + int ctlr; /* IDE controller, 0/1 */ + int unit; /* drive unit, 0/1 */ + int port; /* controller base port */ + int attached; /* the drive is attached */ + struct kern_devconf *parent; /* the devconf info pattern */ +}; + +struct atapicmd { /* ATAPI command block */ + struct atapicmd *next; /* next command in queue */ + int busy; /* busy flag */ + u_char cmd[16]; /* command and args */ + int unit; /* drive unit number */ + int count; /* byte count, >0 - read, <0 - write */ + char *addr; /* data to transfer */ + void (*callback) (); /* call when done */ + void *cbarg1; /* callback arg 1 */ + void *cbarg2; /* callback arg 1 */ + struct atapires result; /* resulting error code */ +}; + +struct atapi { /* ATAPI controller data */ + u_short port; /* i/o port base */ + u_char ctrlr; /* physical controller number */ + u_char debug : 1; /* trace enable flag */ + u_char cmd16 : 1; /* 16-byte command flag */ + u_char intrcmd : 1; /* interrupt before cmd flag */ + u_char slow : 1; /* slow reaction device */ + u_char attached[2]; /* units are attached to subdrivers */ + struct atapi_params *params[2]; /* params for units 0,1 */ + struct kern_devconf *parent; /* parent configuration pattern */ + struct atapicmd *queue; /* queue of commands to perform */ + struct atapicmd *tail; /* tail of queue */ + struct atapicmd *free; /* queue of free command blocks */ + struct atapicmd cmdrq[16]; /* pool of command requests */ +}; + #ifdef KERNEL struct atapi; struct kern_devconf; -void atapi_attach (int ctlr, int unit, int port, struct kern_devconf*); + +extern struct atapidrv atapi_drvtab[4]; /* delayed attach info */ +extern int atapi_ndrv; /* the number of potential drives */ +extern struct atapi *atapi_tab; /* the table of atapi controllers */ + +#ifndef ATAPI_STATIC +# define atapi_start (*atapi_start_ptr) +# define atapi_intr (*atapi_intr_ptr) +# define atapi_debug (*atapi_debug_ptr) +# define atapi_request_wait (*atapi_request_wait_ptr) +# define atapi_request_callback (*atapi_request_callback_ptr) +# define atapi_request_immediate (*atapi_request_immediate_ptr) +#endif + +#ifndef ATAPI_MODULE +int atapi_attach (int ctlr, int unit, int port, struct kern_devconf*); +#endif + int atapi_start (int ctrlr); int atapi_intr (int ctrlr); void atapi_debug (struct atapi *ata, int on); |
