File: [local] / sys / arch / sparc / dev / isp_sbus.c (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:04 2008 UTC (16 years, 4 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
|
/* $OpenBSD: isp_sbus.c,v 1.24 2004/09/29 07:35:11 miod Exp $ */
/*
* SBus specific probe and attach routines for Qlogic ISP SCSI adapters.
*
* Copyright (c) 1997, 2000 by Matthew Jacob
* 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 immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* documentation and/or other materials provided with the distribution.
* 2. 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 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.
*
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/queue.h>
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <machine/param.h>
#include <machine/vmparam.h>
#include <sparc/sparc/cpuvar.h>
#include <dev/ic/isp_openbsd.h>
#if defined(ISP_COMPILE_FW) || defined(ISP_COMPILE_1000_FW)
#include <dev/microcode/isp/asm_sbus.h>
#endif
#define ISP_SBUSIFY_ISPHDR(isp, hdrp) \
ISP_SWAP8((hdrp)->rqs_entry_count, (hdrp)->rqs_entry_type); \
ISP_SWAP8((hdrp)->rqs_flags, (hdrp)->rqs_seqno);
#define ISP_SWIZZLE_REQUEST(a, b) \
ISP_SBUSIFY_ISPHDR(a, &(b)->req_header); \
ISP_SWAP8((b)->req_target, (b)->req_lun_trn)
static int
isp_sbus_rd_isr(struct ispsoftc *, u_int16_t *, u_int16_t *, u_int16_t *);
static u_int16_t isp_sbus_rd_reg(struct ispsoftc *, int);
static void isp_sbus_wr_reg(struct ispsoftc *, int, u_int16_t);
static int isp_sbus_mbxdma(struct ispsoftc *);
static int isp_sbus_dmasetup(struct ispsoftc *, struct scsi_xfer *,
ispreq_t *, u_int16_t *, u_int16_t);
static void
isp_sbus_dmateardown(struct ispsoftc *, struct scsi_xfer *, u_int16_t);
static int isp_sbus_intr(void *);
#ifndef ISP_1000_RISC_CODE
#define ISP_1000_RISC_CODE NULL
#endif
static struct ispmdvec mdvec = {
isp_sbus_rd_isr,
isp_sbus_rd_reg,
isp_sbus_wr_reg,
isp_sbus_mbxdma,
isp_sbus_dmasetup,
isp_sbus_dmateardown,
NULL,
NULL,
NULL,
(u_int16_t *) ISP_1000_RISC_CODE,
BIU_BURST_ENABLE|BIU_SBUS_CONF1_FIFO_32
};
struct isp_sbussoftc {
struct ispsoftc sbus_isp;
sdparam sbus_dev;
struct intrhand sbus_ih;
volatile u_int16_t *sbus_reg;
int sbus_node;
int sbus_pri;
struct ispmdvec sbus_mdvec;
int16_t sbus_poff[_NREG_BLKS];
vaddr_t *sbus_kdma_allocs;
};
static int isp_match(struct device *, void *, void *);
static void isp_sbus_attach(struct device *, struct device *, void *);
struct cfattach isp_sbus_ca = {
sizeof (struct isp_sbussoftc), isp_match, isp_sbus_attach
};
static int
isp_match(struct device *parent, void *cfarg, void *aux)
{
int rv;
struct cfdata *cf = cfarg;
#ifdef DEBUG
static int oneshot = 1;
#endif
struct confargs *ca = aux;
struct romaux *ra = &ca->ca_ra;
rv = (strcmp(cf->cf_driver->cd_name, ra->ra_name) == 0 ||
strcmp("PTI,ptisp", ra->ra_name) == 0 ||
strcmp("ptisp", ra->ra_name) == 0 ||
strcmp("SUNW,isp", ra->ra_name) == 0 ||
strcmp("QLGC,isp", ra->ra_name) == 0);
if (rv == 0)
return (rv);
#ifdef DEBUG
if (rv && oneshot) {
oneshot = 0;
printf("Qlogic ISP Driver, OpenBSD (sbus) Platform Version "
"%d.%d Core Version %d.%d\n",
ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR,
ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR);
}
#endif
if (ca->ca_bustype == BUS_SBUS)
return (1);
ra->ra_len = NBPG;
return (probeget(ra->ra_vaddr, 1) != -1);
}
static void
isp_sbus_attach(struct device *parent, struct device *self, void *aux)
{
int freq, storebp = 0;
struct confargs *ca = aux;
struct bootpath *bp;
struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) self;
struct ispsoftc *isp = &sbc->sbus_isp;
if (ca->ca_ra.ra_nintr != 1) {
printf(": expected 1 interrupt, got %d\n", ca->ca_ra.ra_nintr);
return;
}
printf("\n");
sbc->sbus_pri = ca->ca_ra.ra_intr[0].int_pri;
sbc->sbus_mdvec = mdvec;
if (ca->ca_ra.ra_vaddr) {
sbc->sbus_reg = (volatile u_int16_t *) ca->ca_ra.ra_vaddr;
} else {
sbc->sbus_reg = (volatile u_int16_t *)
mapiodev(ca->ca_ra.ra_reg, 0, ca->ca_ra.ra_len);
}
sbc->sbus_node = ca->ca_ra.ra_node;
freq = getpropint(ca->ca_ra.ra_node, "clock-frequency", 0);
if (freq) {
/*
* Convert from HZ to MHz, rounding up.
*/
freq = (freq + 500000)/1000000;
#if 0
printf("%s: %d MHz\n", self->dv_xname, freq);
#endif
}
sbc->sbus_mdvec.dv_clock = freq;
if ((bp = ca->ca_ra.ra_bp) != NULL) {
if (bp->val[0] == ca->ca_slot &&
bp->val[1] == ca->ca_offset) {
if (strcmp("isp", bp->name) == 0 ||
strcmp("QLGC,isp", bp->name) == 0 ||
strcmp("PTI,isp", bp->name) == 0 ||
strcmp("ptisp", bp->name) == 0) {
storebp = 1;
}
}
}
/*
* XXX: Now figure out what the proper burst sizes, etc., to use.
*/
sbc->sbus_mdvec.dv_conf1 |= BIU_SBUS_CONF1_FIFO_8;
/*
* Some early versions of the PTI SBus adapter
* would fail in trying to download (via poking)
* FW. We give up on them.
*/
if (strcmp("PTI,ptisp", ca->ca_ra.ra_name) == 0 ||
strcmp("ptisp", ca->ca_ra.ra_name) == 0) {
sbc->sbus_mdvec.dv_ispfw = NULL;
}
isp->isp_mdvec = &sbc->sbus_mdvec;
isp->isp_bustype = ISP_BT_SBUS;
isp->isp_type = ISP_HA_SCSI_UNKNOWN;
isp->isp_param = &sbc->sbus_dev;
bzero(isp->isp_param, sizeof (sdparam));
sbc->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF;
sbc->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF;
sbc->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF;
sbc->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF;
sbc->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF;
/* Establish interrupt channel */
sbc->sbus_ih.ih_fun = (void *) isp_sbus_intr;
sbc->sbus_ih.ih_arg = sbc;
intr_establish(sbc->sbus_pri, &sbc->sbus_ih, IPL_BIO, self->dv_xname);
/*
* Set up logging levels.
*/
#ifdef ISP_LOGDEFAULT
isp->isp_dblev = ISP_LOGDEFAULT;
#else
isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR;
#ifdef SCSIDEBUG
isp->isp_dblev |= ISP_LOGDEBUG1|ISP_LOGDEBUG2;
#endif
#ifdef DEBUG
isp->isp_dblev |= ISP_LOGDEBUG0|ISP_LOGCONFIG|ISP_LOGINFO;
#endif
#endif
isp->isp_confopts = self->dv_cfdata->cf_flags;
isp->isp_role = ISP_DEFAULT_ROLES;
ISP_LOCK(isp);
isp->isp_osinfo.no_mbox_ints = 1;
isp_reset(isp);
if (isp->isp_state != ISP_RESETSTATE) {
ISP_UNLOCK(isp);
return;
}
ENABLE_INTS(isp);
isp_init(isp);
if (isp->isp_state != ISP_INITSTATE) {
isp_uninit(isp);
ISP_UNLOCK(isp);
return;
}
/*
* do generic attach.
*/
if (storebp) {
/*
* We're the booting HBA.
*
* Override the bootpath name with our driver name
* so we will do the correct matching and and store
* the next component's boot path entry, also so a
* successful match will occur.
*/
bcopy("isp", bp->name, 4);
bp++;
bootpath_store(1, bp);
}
isp_attach(isp);
if (isp->isp_state != ISP_RUNSTATE) {
isp_uninit(isp);
}
if (storebp) {
bootpath_store(1, NULL);
}
ISP_UNLOCK(isp);
}
#define IspVirt2Off(a, x) \
(((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \
_BLK_REG_SHFT] + ((x) & 0xff))
#define BXR2(pcs, off) (sbc->sbus_reg[off >> 1])
static int
isp_sbus_rd_isr(struct ispsoftc *isp, u_int16_t *isrp,
u_int16_t *semap, u_int16_t *mbp)
{
struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
volatile u_int16_t isr, sema;
isr = BXR2(pcs, IspVirt2Off(isp, BIU_ISR));
sema = BXR2(pcs, IspVirt2Off(isp, BIU_SEMA));
isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema);
isr &= INT_PENDING_MASK(isp);
sema &= BIU_SEMA_LOCK;
if (isr == 0 && sema == 0) {
return (0);
}
*isrp = isr;
if ((*semap = sema) != 0) {
*mbp = BXR2(pcs, IspVirt2Off(isp, OUTMAILBOX0));
}
return (1);
}
static u_int16_t
isp_sbus_rd_reg(struct ispsoftc *isp, int regoff)
{
struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
offset += (regoff & 0xff);
return ((u_int16_t) sbc->sbus_reg[offset >> 1]);
}
static void
isp_sbus_wr_reg(struct ispsoftc *isp, int regoff, u_int16_t val)
{
struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
offset += (regoff & 0xff);
sbc->sbus_reg[offset >> 1] = val;
}
static int
isp_sbus_mbxdma(struct ispsoftc *isp)
{
struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
size_t len;
if (isp->isp_rquest_dma) /* been here before? */
return (0);
/*
* NOTE: Since most Sun machines aren't I/O coherent,
* map the mailboxes through kdvma space to force them
* to be uncached.
*/
len = isp->isp_maxcmds * sizeof (XS_T);
isp->isp_xflist = (XS_T **) malloc(len, M_DEVBUF, M_WAITOK);
bzero(isp->isp_xflist, len);
len = isp->isp_maxcmds * sizeof (vaddr_t);
sbc->sbus_kdma_allocs = (vaddr_t *) malloc(len, M_DEVBUF, M_WAITOK);
bzero(sbc->sbus_kdma_allocs, len);
/*
* Allocate and map the request queue.
*/
len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
isp->isp_rquest = (volatile caddr_t)malloc(len, M_DEVBUF, M_NOWAIT);
if (isp->isp_rquest == 0) {
printf("%s: cannot allocate request queue\n", isp->isp_name);
return (1);
}
isp->isp_rquest_dma = (u_int32_t)
kdvma_mapin((caddr_t)isp->isp_rquest, len, 0);
if (isp->isp_rquest_dma == 0) {
printf("%s: could not mapin request queue\n", isp->isp_name);
return (1);
}
/*
* Allocate and map the result queue.
*/
len = ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
isp->isp_result = (volatile caddr_t)malloc(len, M_DEVBUF, M_NOWAIT);
if (isp->isp_result == 0) {
printf("%s: cannot allocate result queue\n", isp->isp_name);
return (1);
}
isp->isp_result_dma = (u_int32_t)
kdvma_mapin((caddr_t)isp->isp_result, len, 0);
if (isp->isp_result_dma == 0) {
printf("%s: could not mapin result queue\n", isp->isp_name);
return (1);
}
return (0);
}
/*
* TODO: If kdvma_mapin fails, try using multiple smaller chunks..
*/
static int
isp_sbus_dmasetup(struct ispsoftc *isp, struct scsi_xfer *xs, ispreq_t *rq,
u_int16_t *iptrp, u_int16_t optr)
{
struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
ispreq_t *qe;
ispcontreq_t *crq;
vaddr_t kdvma;
int dosleep = (xs->flags & SCSI_NOSLEEP) != 0;
qe = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, isp->isp_reqidx);
if (xs->datalen == 0) {
rq->req_seg_count = 1;
goto mbxsync;
}
if (CPU_ISSUN4M) {
kdvma = (vaddr_t)
kdvma_mapin((caddr_t)xs->data, xs->datalen, dosleep);
if (kdvma == (vaddr_t) 0) {
XS_SETERR(xs, HBA_BOTCH);
return (CMD_COMPLETE);
}
} else {
kdvma = (vaddr_t) xs->data;
}
if (sbc->sbus_kdma_allocs[isp_handle_index(rq->req_handle)] != 0) {
panic("%s: kdma handle already allocated", isp->isp_name);
/* NOTREACHED */
}
if (XS_CDBLEN(xs) > 12) {
crq = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, *iptrp);
*iptrp = ISP_NXT_QENTRY(*iptrp, RQUEST_QUEUE_LEN(isp));
if (*iptrp == optr) {
printf("%s: Request Queue Overflow++\n", isp->isp_name);
if (CPU_ISSUN4M) {
dvma_mapout(kdvma,
(vaddr_t) xs->data, xs->datalen);
}
XS_SETERR(xs, HBA_BOTCH);
return (CMD_EAGAIN);
}
} else {
crq = NULL;
}
sbc->sbus_kdma_allocs[isp_handle_index(rq->req_handle)] = kdvma;
if (xs->flags & SCSI_DATA_IN) {
rq->req_flags |= REQFLAG_DATA_IN;
} else {
rq->req_flags |= REQFLAG_DATA_OUT;
}
if (crq) {
rq->req_seg_count = 2;
rq->req_dataseg[0].ds_count = 0;
rq->req_dataseg[0].ds_base = 0;
bzero((void *)crq, sizeof (*crq));
crq->req_header.rqs_entry_count = 1;
crq->req_header.rqs_entry_type = RQSTYPE_DATASEG;
crq->req_dataseg[0].ds_count = xs->datalen;
crq->req_dataseg[0].ds_base = (u_int32_t) kdvma;
ISP_SBUSIFY_ISPHDR(isp, &crq->req_header)
} else {
rq->req_dataseg[0].ds_count = xs->datalen;
rq->req_dataseg[0].ds_base = (u_int32_t) kdvma;
rq->req_seg_count = 1;
}
mbxsync:
ISP_SWIZZLE_REQUEST(isp, rq);
bcopy(rq, qe, sizeof (ispreq_t));
return (CMD_QUEUED);
}
static void
isp_sbus_dmateardown(struct ispsoftc *isp, XS_T *xs, u_int16_t handle)
{
struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
vaddr_t kdvma;
if (xs->flags & SCSI_DATA_IN) {
cpuinfo.cache_flush(xs->data, xs->datalen - xs->resid);
}
if (sbc->sbus_kdma_allocs[isp_handle_index(handle)] == (vaddr_t) 0) {
panic("%s: kdma handle not already allocated", isp->isp_name);
/* NOTREACHED */
}
kdvma = sbc->sbus_kdma_allocs[isp_handle_index(handle)];
sbc->sbus_kdma_allocs[isp_handle_index(handle)] = (vaddr_t) 0;
if (CPU_ISSUN4M) {
dvma_mapout(kdvma, (vaddr_t) xs->data, xs->datalen);
}
}
static int
isp_sbus_intr(void *arg)
{
u_int16_t isr, sema, mbox;
struct ispsoftc *isp = (struct ispsoftc *)arg;
isp->isp_intcnt++;
if (ISP_READ_ISR(isp, &isr, &sema, &mbox) == 0) {
isp->isp_intbogus++;
return (0);
} else {
isp->isp_osinfo.onintstack = 1;
isp_intr(isp, isr, sema, mbox);
isp->isp_osinfo.onintstack = 0;
return (1);
}
}