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/* $OpenBSD: gdtvar.h,v 1.5 2000/11/10 09:42:14 niklas Exp $ */
/*
* Copyright (c) 1999, 2000 Niklas Hallqvist. 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.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Niklas Hallqvist.
* 4. 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.
*/
/*
* This driver would not have written if it was not for the hardware donations
* from both ICP-Vortex and Öko.neT. I want to thank them for their support.
*/
/* Debugging */
#ifdef GDT_DEBUG
#define GDT_DPRINTF(mask, args) if (gdt_debug & (mask)) printf args
#define GDT_D_INTR 0x01
#define GDT_D_MISC 0x02
#define GDT_D_CMD 0x04
#define GDT_D_QUEUE 0x08
#define GDT_D_IO 0x10
extern int gdt_debug;
#else
#define GDT_DPRINTF(mask, args)
#endif
/* Miscellaneous constants */
#define GDT_RETRIES 100000000 /* 100000 * 1us = 100s */
#define GDT_TIMEOUT 100000000 /* 100000 * 1us = 100s */
#define GDT_POLL_TIMEOUT 10000000 /* 10000 * 1us = 10s */
#define GDT_WATCH_TIMEOUT 10000 /* 10000 * 1ms = 10s */
#define GDT_SCRATCH_SZ 4096 /* 4KB scratch buffer */
/* Context structure for interrupt services */
struct gdt_intr_ctx {
u_int32_t info, info2;
u_int16_t cmd_status, service;
u_int8_t istatus;
};
/*
* A command contol block, one for each corresponding command index of the
* controller.
*/
struct gdt_ccb {
TAILQ_ENTRY(gdt_ccb) gc_chain;
struct scsi_xfer *gc_xs;
bus_dmamap_t gc_dmamap_xfer;
int gc_timeout;
u_int32_t gc_info;
u_int32_t gc_blockno;
u_int32_t gc_blockcnt;
u_int16_t gc_status;
u_int8_t gc_service;
u_int8_t gc_cmd_index;
u_int8_t gc_flags;
#define GDT_GCF_CMD_MASK 0x3
#define GDT_GCF_UNUSED 0
#define GDT_GCF_INTERNAL 1
#define GDT_GCF_SCREEN 2
#define GDT_GCF_SCSI 3
#define GDT_GCF_WATCHDOG 0x4
};
static __inline__ int gdt_ccb_set_cmd __P((struct gdt_ccb *, int));
static __inline__ int
gdt_ccb_set_cmd(ccb, flag)
struct gdt_ccb *ccb;
int flag;
{
int rv = ccb->gc_flags & GDT_GCF_CMD_MASK;
ccb->gc_flags &= ~GDT_GCF_CMD_MASK;
ccb->gc_flags |= flag;
return (rv);
}
struct gdt_softc {
struct device sc_dev;
void *sc_ih;
struct scsi_link sc_link; /* Virtual SCSI bus for cache devs */
struct scsi_link *sc_raw_link; /* Raw SCSI busses */
int sc_class; /* Controller class */
#define GDT_ISA 0x01
#define GDT_EISA 0x02
#define GDT_PCI 0x03
#define GDT_PCINEW 0x04
#define GDT_MPR 0x05
#define GDT_CLASS_MASK 0x07
#define GDT_FC 0x10
#define GDT_CLASS(gdt) ((gdt)->sc_class & GDT_CLASS_MASK)
bus_space_tag_t sc_dpmemt;
bus_space_handle_t sc_dpmemh;
bus_addr_t sc_dpmembase;
bus_dma_tag_t sc_dmat;
/* XXX These could go into a class-dependent opaque struct instead */
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
bus_addr_t sc_iobase;
u_int16_t sc_ic_all_size;
struct gdt_ccb sc_ccbs[GDT_MAXCMDS];
TAILQ_HEAD(, gdt_ccb) sc_free_ccb, sc_ccbq;
LIST_HEAD(, scsi_xfer) sc_queue;
struct scsi_xfer *sc_queuelast;
u_int16_t sc_cmd_len;
u_int16_t sc_cmd_off;
u_int16_t sc_cmd_cnt;
u_int8_t sc_cmd[GDT_CMD_SZ];
u_int32_t sc_info;
u_int32_t sc_info2;
u_int16_t sc_status;
u_int8_t sc_scratch[GDT_SCRATCH_SZ];
u_int8_t sc_bus_cnt;
u_int8_t sc_bus_id[GDT_MAXBUS];
u_int8_t sc_more_proc;
struct {
u_int8_t hd_present;
u_int8_t hd_is_logdrv;
u_int8_t hd_is_arraydrv;
u_int8_t hd_is_master;
u_int8_t hd_is_parity;
u_int8_t hd_is_hotfix;
u_int8_t hd_master_no;
u_int8_t hd_lock;
u_int8_t hd_heads;
u_int8_t hd_secs;
u_int16_t hd_devtype;
u_int32_t hd_size;
u_int8_t hd_ldr_no;
u_int8_t hd_rw_attribs;
u_int32_t hd_start_sec;
} sc_hdr[GDT_MAX_HDRIVES];
struct {
u_int32_t cp_version;
u_int16_t cp_state;
u_int16_t cp_strategy;
u_int16_t cp_write_back;
u_int16_t cp_block_size;
} sc_cpar;
struct {
u_int32_t bi_ser_no; /* serial number */
u_int8_t bi_oem_id[2]; /* u_int8_t OEM ID */
u_int16_t bi_ep_flags; /* eprom flags */
u_int32_t bi_proc_id; /* processor ID */
u_int32_t bi_memsize; /* memory size (bytes) */
u_int8_t bi_mem_banks; /* memory banks */
u_int8_t bi_chan_type; /* channel type */
u_int8_t bi_chan_count; /* channel count */
u_int8_t bi_rdongle_pres; /* dongle present */
u_int32_t bi_epr_fw_ver; /* (eprom) firmware ver */
u_int32_t bi_upd_fw_ver; /* (update) firmware ver */
u_int32_t bi_upd_revision; /* update revision */
char bi_type_string[16]; /* char controller name */
char bi_raid_string[16]; /* char RAID firmware name */
u_int8_t bi_update_pres; /* update present? */
u_int8_t bi_xor_pres; /* XOR engine present */
u_int8_t bi_prom_type; /* ROM type (eprom/flash) */
u_int8_t bi_prom_count; /* number of ROM devices */
u_int32_t bi_dup_pres; /* duplexing module pres? */
u_int32_t bi_chan_pres; /* # of exp. channels */
u_int32_t bi_mem_pres; /* memory expansion inst? */
u_int8_t bi_ft_bus_system; /* fault bus supported? */
u_int8_t bi_subtype_valid; /* board_subtype valid */
u_int8_t bi_board_subtype; /* subtype/hardware level */
u_int8_t bi_rampar_pres; /* RAM parity check hw? */
} sc_binfo;
struct {
u_int8_t bf_chaining; /* chaining supported */
u_int8_t bf_striping; /* striping (RAID-0) supported */
u_int8_t bf_mirroring; /* mirroring (RAID-1) supported */
u_int8_t bf_raid; /* RAID-4/5/10 supported */
} sc_bfeat;
u_int16_t sc_raw_feat;
u_int16_t sc_cache_feat;
void (*sc_copy_cmd) __P((struct gdt_softc *, struct gdt_ccb *));
u_int8_t (*sc_get_status) __P((struct gdt_softc *));
void (*sc_intr) __P((struct gdt_softc *, struct gdt_intr_ctx *));
void (*sc_release_event) __P((struct gdt_softc *, struct gdt_ccb *));
void (*sc_set_sema0) __P((struct gdt_softc *));
int (*sc_test_busy) __P((struct gdt_softc *));
};
/* XXX These have to become spinlocks in case of SMP */
#define GDT_LOCK_GDT(gdt) splbio()
#define GDT_UNLOCK_GDT(gdt, lock) splx(lock)
typedef int gdt_lock_t;
void gdtminphys __P((struct buf *));
int gdt_attach __P((struct gdt_softc *));
int gdt_intr __P((void *));
#ifdef __GNUC__
/* These all require correctly aligned buffers */
static __inline__ void gdt_enc16 __P((u_int8_t *, u_int16_t));
static __inline__ void gdt_enc32 __P((u_int8_t *, u_int32_t));
static __inline__ u_int16_t gdt_dec16 __P((u_int8_t *));
static __inline__ u_int32_t gdt_dec32 __P((u_int8_t *));
static __inline__ void
gdt_enc16(addr, value)
u_int8_t *addr;
u_int16_t value;
{
*(u_int16_t *)addr = htole16(value);
}
static __inline__ void
gdt_enc32(addr, value)
u_int8_t *addr;
u_int32_t value;
{
*(u_int32_t *)addr = htole32(value);
}
static __inline__ u_int16_t
gdt_dec16(addr)
u_int8_t *addr;
{
return letoh16(*(u_int16_t *)addr);
}
static __inline__ u_int32_t
gdt_dec32(addr)
u_int8_t *addr;
{
return letoh32(*(u_int32_t *)addr);
}
#endif
#if defined(__alpha__)
/* XXX XXX NEED REAL DMA MAPPING SUPPORT XXX XXX */
#undef vtophys
#define vtophys(va) alpha_XXX_dmamap((vm_offset_t)(va))
#endif
extern u_int8_t gdt_polling;
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