diff options
Diffstat (limited to 'sys/arch/socppc/stand/boot/wdvar.h')
| -rw-r--r-- | sys/arch/socppc/stand/boot/wdvar.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/sys/arch/socppc/stand/boot/wdvar.h b/sys/arch/socppc/stand/boot/wdvar.h new file mode 100644 index 00000000000..ae33a7d8829 --- /dev/null +++ b/sys/arch/socppc/stand/boot/wdvar.h @@ -0,0 +1,134 @@ +/* $OpenBSD: wdvar.h,v 1.1 2008/05/10 20:06:27 kettenis Exp $ */ +/* $NetBSD: wdvar.h,v 1.6 2005/12/11 12:17:06 christos Exp $ */ + +/*- + * Copyright (c) 2003 The NetBSD Foundation, Inc. + * Copyright (c) 2001 Dynarc AB, Sweden. All rights reserved. + * + * This code is derived from software written by Anders Magnusson, + * ragge@ludd.luth.se + * + * 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. + * 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. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. + */ + +#ifndef _STAND_WDVAR_H +#define _STAND_WDVAR_H + +#include <sys/disklabel.h> + +#include <dev/ic/wdcreg.h> +#include <dev/ata/atareg.h> +#include <dev/pci/pciidereg.h> + +/* + * WD1003 / ATA Disk Controller register definitions. + */ + +/* offsets of registers in the 'regular' register region */ +#define wd_data 0 /* data register (R/W - 16 bits) */ +#define wd_error 1 /* error register (R) */ +#define wd_precomp 1 /* write precompensation (W) */ +#define wd_seccnt 2 /* sector count (R/W) */ +#define wd_ireason 2 /* interrupt reason (R/W) (for atapi) */ +#define wd_sector 3 /* first sector number (R/W) */ +#define wd_cyl_lo 4 /* cylinder address, low byte (R/W) */ +#define wd_cyl_hi 5 /* cylinder address, high byte (R/W) */ +#define wd_sdh 6 /* sector size/drive/head (R/W) */ +#define wd_command 7 /* command register (W) */ +#define wd_lba_lo 3 /* lba address, low byte (RW) */ +#define wd_lba_mi 4 /* lba address, middle byte (RW) */ +#define wd_lba_hi 5 /* lba address, high byte (RW) */ + +/* "shadow" registers; these may or may not overlap regular registers */ +#define wd_status 8 /* immediate status (R) */ +#define wd_features 9 /* features (W) */ + +/* offsets of registers in the auxiliary register region */ +#define wd_aux_altsts 0 /* alternate fixed disk status (R) */ +#define wd_aux_ctlr 0 /* fixed disk controller control (W) */ +#define WDCTL_4BIT 0x08 /* use four head bits (wd1003) */ +#define WDCTL_RST 0x04 /* reset the controller */ +#define WDCTL_IDS 0x02 /* disable controller interrupts */ + +#define WDC_TIMEOUT 2000000 +#define PCIIDE_CHANNEL_NDEV 2 +#define NUNITS (PCIIDE_CHANNEL_NDEV * PCIIDE_NUM_CHANNELS) +#define WDC_NPORTS 8 /* XXX */ +#define WDC_NSHADOWREG 2 /* XXX */ + +struct wdc_channel { + volatile u_int8_t *c_cmdbase; + volatile u_int8_t *c_ctlbase; + volatile u_int8_t *c_cmdreg[WDC_NPORTS + WDC_NSHADOWREG]; + volatile u_int16_t *c_data; + + u_int8_t ndrives; +}; + +#define WDC_READ_REG(chp, reg) *(chp)->c_cmdreg[(reg)] +#define WDC_WRITE_REG(chp, reg, val) *(chp)->c_cmdreg[(reg)] = (val) +#define WDC_READ_CTLREG(chp, reg) (chp)->c_ctlbase[(reg)] +#define WDC_WRITE_CTLREG(chp, reg, val) (chp)->c_ctlbase[(reg)] = (val) +#define WDC_READ_DATA(chp) *(chp)->c_data + +struct wd_softc { +#define WDF_LBA 0x0001 +#define WDF_LBA48 0x0002 + u_int16_t sc_flags; + + u_int sc_part; + u_int sc_unit; + + u_int64_t sc_capacity; + + struct ataparams sc_params; + struct disklabel sc_label; + struct wdc_channel sc_channel; + u_int sc_drive; +}; + +struct wdc_command { + u_int8_t drive; /* drive id */ + + u_int8_t r_command; /* Parameters to upload to registers */ + u_int8_t r_head; + u_int16_t r_cyl; + u_int8_t r_sector; + u_int8_t r_count; + u_int8_t r_precomp; + + u_int16_t bcount; + void *data; + + u_int64_t r_blkno; +}; + +int wdc_init (struct wd_softc*, u_int); +int wdccommand (struct wd_softc*, struct wdc_command*); +int wdccommandext (struct wd_softc*, struct wdc_command*); +int wdc_exec_read (struct wd_softc*, u_int8_t, daddr_t, void*); +int wdc_exec_identify (struct wd_softc*, void*); + +int pciide_init (struct wdc_channel*, u_int); + +#endif /* _STAND_WDVAR_H */ |