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/*
* 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;
int fdout; /* mirror of the w/o digital output reg */
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 */
struct resource *res_ioport, *res_ctl, *res_irq, *res_drq;
int rid_ioport, rid_ctl, rid_irq, rid_drq;
int port_off;
bus_space_tag_t portt;
bus_space_handle_t porth;
bus_space_tag_t ctlt;
bus_space_handle_t ctlh;
void *fdc_intr;
struct device *fdc_dev;
void (*fdctl_wr)(struct fdc_data *fdc, u_int8_t v);
};
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;
int fdc_alloc_resources(struct fdc_data *);
void fdout_wr(fdc_p, u_int8_t);
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_print_child(device_t, device_t);
int fdc_read_ivar(device_t, device_t, int, uintptr_t *);
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