164 lines
4.3 KiB
C
164 lines
4.3 KiB
C
/*
|
|
* Copyright (c) 2004 M. Warner Losh.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions, and the following disclaimer,
|
|
* without modification, immediately at the beginning of the file.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
|
|
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/* XXX should audit this file to see if additional copyrights needed */
|
|
|
|
enum fdc_type
|
|
{
|
|
FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1
|
|
};
|
|
|
|
enum fdc_states {
|
|
DEVIDLE,
|
|
FINDWORK,
|
|
DOSEEK,
|
|
SEEKCOMPLETE ,
|
|
IOCOMPLETE,
|
|
RECALCOMPLETE,
|
|
STARTRECAL,
|
|
RESETCTLR,
|
|
SEEKWAIT,
|
|
RECALWAIT,
|
|
MOTORWAIT,
|
|
IOTIMEDOUT,
|
|
RESETCOMPLETE,
|
|
PIOREAD
|
|
};
|
|
|
|
#ifdef FDC_DEBUG
|
|
static char const * const fdstates[] = {
|
|
"DEVIDLE",
|
|
"FINDWORK",
|
|
"DOSEEK",
|
|
"SEEKCOMPLETE",
|
|
"IOCOMPLETE",
|
|
"RECALCOMPLETE",
|
|
"STARTRECAL",
|
|
"RESETCTLR",
|
|
"SEEKWAIT",
|
|
"RECALWAIT",
|
|
"MOTORWAIT",
|
|
"IOTIMEDOUT",
|
|
"RESETCOMPLETE",
|
|
"PIOREAD"
|
|
};
|
|
#endif
|
|
|
|
/*
|
|
* Per controller structure (softc).
|
|
*/
|
|
struct fdc_data
|
|
{
|
|
int fdcu; /* our unit number */
|
|
int dmacnt;
|
|
int dmachan;
|
|
int flags;
|
|
#define FDC_ATTACHED 0x01
|
|
#define FDC_STAT_VALID 0x08
|
|
#define FDC_HAS_FIFO 0x10
|
|
#define FDC_NEEDS_RESET 0x20
|
|
#define FDC_NODMA 0x40
|
|
#define FDC_ISPNP 0x80
|
|
#define FDC_ISPCMCIA 0x100
|
|
struct fd_data *fd;
|
|
int fdu; /* the active drive */
|
|
enum fdc_states state;
|
|
int retry;
|
|
#ifndef PC98
|
|
int fdout; /* mirror of the w/o digital output reg */
|
|
#endif
|
|
u_int status[7]; /* copy of the registers */
|
|
enum fdc_type fdct; /* chip version of FDC */
|
|
int fdc_errs; /* number of logged errors */
|
|
int dma_overruns; /* number of DMA overruns */
|
|
struct bio_queue_head head;
|
|
struct bio *bp; /* active buffer */
|
|
#ifdef PC98
|
|
struct resource *res_ioport, *res_fdsio, *res_fdemsio;
|
|
struct resource *res_irq, *res_drq;
|
|
int rid_ioport, rid_irq, rid_drq;
|
|
#else
|
|
struct resource *res_ioport, *res_ctl, *res_irq, *res_drq;
|
|
int rid_ioport, rid_ctl, rid_irq, rid_drq;
|
|
#endif
|
|
int port_off;
|
|
bus_space_tag_t portt;
|
|
bus_space_handle_t porth;
|
|
#ifdef PC98
|
|
bus_space_tag_t sc_fdsiot;
|
|
bus_space_handle_t sc_fdsioh;
|
|
bus_space_tag_t sc_fdemsiot;
|
|
bus_space_handle_t sc_fdemsioh;
|
|
#else
|
|
bus_space_tag_t ctlt;
|
|
bus_space_handle_t ctlh;
|
|
#endif
|
|
void *fdc_intr;
|
|
struct device *fdc_dev;
|
|
#ifndef PC98
|
|
void (*fdctl_wr)(struct fdc_data *fdc, u_int8_t v);
|
|
#endif
|
|
};
|
|
|
|
typedef int fdu_t;
|
|
typedef int fdcu_t;
|
|
typedef int fdsu_t;
|
|
typedef struct fd_data *fd_p;
|
|
typedef struct fdc_data *fdc_p;
|
|
typedef enum fdc_type fdc_t;
|
|
|
|
/* error returns for fd_cmd() */
|
|
#define FD_FAILED -1
|
|
#define FD_NOT_VALID -2
|
|
#define FDC_ERRMAX 100 /* do not log more */
|
|
|
|
extern devclass_t fdc_devclass;
|
|
|
|
enum fdc_device_ivars {
|
|
FDC_IVAR_FDUNIT,
|
|
FDC_IVAR_FDTYPE,
|
|
};
|
|
|
|
__BUS_ACCESSOR(fdc, fdunit, FDC, FDUNIT, int);
|
|
__BUS_ACCESSOR(fdc, fdtype, FDC, FDTYPE, int);
|
|
|
|
int fdc_alloc_resources(struct fdc_data *);
|
|
#ifndef PC98
|
|
void fdout_wr(fdc_p, u_int8_t);
|
|
#endif
|
|
int fd_cmd(struct fdc_data *, int, ...);
|
|
void fdc_release_resources(struct fdc_data *);
|
|
int fdc_attach(device_t);
|
|
int fdc_detach(device_t dev);
|
|
int fdc_initial_reset(struct fdc_data *);
|
|
int fdc_print_child(device_t, device_t);
|
|
int fdc_read_ivar(device_t, device_t, int, uintptr_t *);
|
|
int fdc_write_ivar(device_t, device_t, int, uintptr_t);
|