fdcvar.h revision 131767
1/* 2 * Copyright (c) 2004 M. Warner Losh. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions, and the following disclaimer, 10 * without modification, immediately at the beginning of the file. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in 13 * the documentation and/or other materials provided with the 14 * distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD: head/sys/dev/fdc/fdcvar.h 131767 2004-07-07 22:35:27Z imp $ 29 */ 30 31/* XXX should audit this file to see if additional copyrights needed */ 32 33enum fdc_type 34{ 35 FDC_NE765, FDC_ENHANCED, FDC_UNKNOWN = -1 36}; 37 38enum fdc_states { 39 DEVIDLE, 40 FINDWORK, 41 DOSEEK, 42 SEEKCOMPLETE , 43 IOCOMPLETE, 44 RECALCOMPLETE, 45 STARTRECAL, 46 RESETCTLR, 47 SEEKWAIT, 48 RECALWAIT, 49 MOTORWAIT, 50 IOTIMEDOUT, 51 RESETCOMPLETE, 52 PIOREAD 53}; 54 55#ifdef FDC_DEBUG 56static char const * const fdstates[] = { 57 "DEVIDLE", 58 "FINDWORK", 59 "DOSEEK", 60 "SEEKCOMPLETE", 61 "IOCOMPLETE", 62 "RECALCOMPLETE", 63 "STARTRECAL", 64 "RESETCTLR", 65 "SEEKWAIT", 66 "RECALWAIT", 67 "MOTORWAIT", 68 "IOTIMEDOUT", 69 "RESETCOMPLETE", 70 "PIOREAD" 71}; 72#endif 73 74/* 75 * Per controller structure (softc). 76 */ 77struct fdc_data 78{ 79 int fdcu; /* our unit number */ 80 int dmacnt; 81 int dmachan; 82 int flags; 83#define FDC_ATTACHED 0x01 84#define FDC_STAT_VALID 0x08 85#define FDC_HAS_FIFO 0x10 86#define FDC_NEEDS_RESET 0x20 87#define FDC_NODMA 0x40 88#define FDC_ISPNP 0x80 89#define FDC_ISPCMCIA 0x100 90 struct fd_data *fd; 91 int fdu; /* the active drive */ 92 enum fdc_states state; 93 int retry; 94 int fdout; /* mirror of the w/o digital output reg */ 95 u_int status[7]; /* copy of the registers */ 96 enum fdc_type fdct; /* chip version of FDC */ 97 int fdc_errs; /* number of logged errors */ 98 int dma_overruns; /* number of DMA overruns */ 99 struct bio_queue_head head; 100 struct bio *bp; /* active buffer */ 101 struct resource *res_ioport, *res_ctl, *res_irq, *res_drq; 102 int rid_ioport, rid_ctl, rid_irq, rid_drq; 103 int port_off; 104 bus_space_tag_t portt; 105 bus_space_handle_t porth; 106 bus_space_tag_t ctlt; 107 bus_space_handle_t ctlh; 108 void *fdc_intr; 109 struct device *fdc_dev; 110 void (*fdctl_wr)(struct fdc_data *fdc, u_int8_t v); 111}; 112 113typedef int fdu_t; 114typedef int fdcu_t; 115typedef int fdsu_t; 116typedef struct fd_data *fd_p; 117typedef struct fdc_data *fdc_p; 118typedef enum fdc_type fdc_t; 119 120/* error returns for fd_cmd() */ 121#define FD_FAILED -1 122#define FD_NOT_VALID -2 123#define FDC_ERRMAX 100 /* do not log more */ 124 125extern devclass_t fdc_devclass; 126 127int fdc_alloc_resources(struct fdc_data *); 128void fdout_wr(fdc_p, u_int8_t); 129int fd_cmd(struct fdc_data *, int, ...); 130void fdc_release_resources(struct fdc_data *); 131int fdc_attach(device_t); 132int fdc_detach(device_t dev); 133int fdc_print_child(device_t, device_t); 134int fdc_read_ivar(device_t, device_t, int, uintptr_t *); 135