252 lines
6.9 KiB
C
252 lines
6.9 KiB
C
/*-
|
|
* Copyright (c) 1996 - 2001 John Hay.
|
|
* Copyright (c) 1996 SDL Communications, Inc.
|
|
* 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. Neither the name of the author nor the names of any co-contributors
|
|
* may 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/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
#include <machine/bus.h>
|
|
#include <machine/resource.h>
|
|
#include <machine/bus_pio.h>
|
|
#include <machine/bus_memio.h>
|
|
#include <sys/rman.h>
|
|
|
|
#include <dev/pci/pcivar.h>
|
|
#include <machine/md_var.h>
|
|
|
|
#include <dev/ic/hd64570.h>
|
|
#include <dev/sr/if_srregs.h>
|
|
|
|
#ifndef BUGGY
|
|
#define BUGGY 0
|
|
#endif
|
|
|
|
static int sr_pci_probe(device_t);
|
|
static int sr_pci_attach(device_t);
|
|
|
|
static device_method_t sr_pci_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, sr_pci_probe),
|
|
DEVMETHOD(device_attach, sr_pci_attach),
|
|
DEVMETHOD(device_detach, sr_detach),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t sr_pci_driver = {
|
|
"sr",
|
|
sr_pci_methods,
|
|
sizeof(struct sr_hardc),
|
|
};
|
|
|
|
DRIVER_MODULE(sr, pci, sr_pci_driver, sr_devclass, 0, 0);
|
|
MODULE_DEPEND(sr, pci, 1, 1, 1);
|
|
|
|
static u_int src_get8_mem(struct sr_hardc *hc, u_int off);
|
|
static u_int src_get16_mem(struct sr_hardc *hc, u_int off);
|
|
static void src_put8_mem(struct sr_hardc *hc, u_int off, u_int val);
|
|
static void src_put16_mem(struct sr_hardc *hc, u_int off, u_int val);
|
|
|
|
static int
|
|
sr_pci_probe(device_t device)
|
|
{
|
|
u_int32_t type = pci_get_devid(device);
|
|
|
|
switch(type) {
|
|
case 0x556812aa:
|
|
device_set_desc(device, "RISCom/N2pci");
|
|
return (BUS_PROBE_DEFAULT);
|
|
break;
|
|
case 0x55684778:
|
|
case 0x55684877:
|
|
/*
|
|
* XXX This can probably be removed sometime.
|
|
*/
|
|
device_set_desc(device, "RISCom/N2pci (old id)");
|
|
return (BUS_PROBE_DEFAULT);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
return (ENXIO);
|
|
}
|
|
|
|
static int
|
|
sr_pci_attach(device_t device)
|
|
{
|
|
int numports;
|
|
u_int fecr;
|
|
struct sr_hardc *hc;
|
|
bus_space_tag_t bt_plx;
|
|
bus_space_handle_t bh_plx;
|
|
|
|
hc = (struct sr_hardc *)device_get_softc(device);
|
|
bzero(hc, sizeof(struct sr_hardc));
|
|
|
|
if (sr_allocate_plx_memory(device, 0x10, 1))
|
|
goto errexit;
|
|
bt_plx = rman_get_bustag(hc->res_plx_memory);
|
|
bh_plx = rman_get_bushandle(hc->res_plx_memory);
|
|
|
|
if (sr_allocate_memory(device, 0x18, 1))
|
|
goto errexit;
|
|
|
|
if (sr_allocate_irq(device, 0, 1))
|
|
goto errexit;
|
|
|
|
hc->cunit = device_get_unit(device);
|
|
|
|
/*
|
|
* Configure the PLX. This is magic. I'm doing it just like I'm told
|
|
* to. :-)
|
|
*
|
|
* offset
|
|
* 0x00 - Map Range - Mem-mapped to locate anywhere
|
|
* 0x04 - Re-Map - PCI address decode enable
|
|
* 0x18 - Bus Region - 32-bit bus, ready enable
|
|
* 0x1c - Master Range - include all 16 MB
|
|
* 0x20 - Master RAM - Map SCA Base at 0
|
|
* 0x28 - Master Remap - direct master memory enable
|
|
* 0x68 - Interrupt - Enable interrupt (0 to disable)
|
|
*
|
|
* Note: This is "cargo cult" stuff. - jrc
|
|
*/
|
|
bus_space_write_4(bt_plx, bh_plx, 0x00, 0xfffff000);
|
|
bus_space_write_4(bt_plx, bh_plx, 0x04, 0x00000001);
|
|
bus_space_write_4(bt_plx, bh_plx, 0x18, 0x40030043);
|
|
bus_space_write_4(bt_plx, bh_plx, 0x1c, 0xff000000);
|
|
bus_space_write_4(bt_plx, bh_plx, 0x20, 0x00000000);
|
|
bus_space_write_4(bt_plx, bh_plx, 0x28, 0x000000e9);
|
|
bus_space_write_4(bt_plx, bh_plx, 0x68, 0x00010900);
|
|
|
|
/*
|
|
* Get info from card.
|
|
*
|
|
* Only look for the second port if the first exists. Too many things
|
|
* will break if we have only a second port.
|
|
*/
|
|
fecr = sr_read_fecr(hc);
|
|
numports = 0;
|
|
|
|
if (((fecr & SR_FECR_ID0) >> SR_FE_ID0_SHFT) != SR_FE_ID_NONE) {
|
|
numports++;
|
|
if (((fecr & SR_FECR_ID1) >> SR_FE_ID1_SHFT) != SR_FE_ID_NONE)
|
|
numports++;
|
|
}
|
|
if (numports == 0)
|
|
goto errexit;
|
|
|
|
hc->numports = numports;
|
|
hc->cardtype = SR_CRD_N2PCI;
|
|
|
|
hc->src_put8 = src_put8_mem;
|
|
hc->src_put16 = src_put16_mem;
|
|
hc->src_get8 = src_get8_mem;
|
|
hc->src_get16 = src_get16_mem;
|
|
|
|
/*
|
|
* Malloc area for tx and rx buffers. For now allocate SRC_WIN_SIZ
|
|
* (16k) for each buffer.
|
|
*
|
|
* Allocate the block below 16M because the N2pci card can only access
|
|
* 16M memory at a time.
|
|
*
|
|
* (We could actually allocate a contiguous block above the 16MB limit,
|
|
* but this would complicate card programming more than we want to
|
|
* right now -jrc)
|
|
*/
|
|
hc->memsize = 2 * hc->numports * SRC_WIN_SIZ;
|
|
hc->mem_start = contigmalloc(hc->memsize,
|
|
M_DEVBUF,
|
|
M_NOWAIT,
|
|
0ul,
|
|
0xfffffful,
|
|
0x10000,
|
|
0x1000000);
|
|
|
|
if (hc->mem_start == NULL) {
|
|
printf("src%d: pci: failed to allocate buffer space.\n",
|
|
hc->cunit);
|
|
goto errexit;
|
|
}
|
|
hc->winmsk = 0xffffffff;
|
|
hc->mem_end = (caddr_t)((u_int)hc->mem_start + hc->memsize);
|
|
hc->mem_pstart = kvtop(hc->mem_start);
|
|
bzero(hc->mem_start, hc->memsize);
|
|
|
|
sr_write_fecr(hc,
|
|
SR_FECR_DTR0 | SR_FECR_DTR1 | SR_FECR_TE0 | SR_FECR_TE1);
|
|
|
|
if (sr_attach(device))
|
|
goto errexit;
|
|
|
|
return (0);
|
|
errexit:
|
|
sr_deallocate_resources(device);
|
|
return (ENXIO);
|
|
}
|
|
|
|
/*
|
|
* I/O for PCI N2 card(s)
|
|
*/
|
|
#define SRC_PCI_SCA_REG(y) ((y & 2) ? ((y & 0xfd) + 0x100) : y)
|
|
|
|
static u_int
|
|
src_get8_mem(struct sr_hardc *hc, u_int off)
|
|
{
|
|
return bus_space_read_1(hc->bt_memory, hc->bh_memory,
|
|
SRC_PCI_SCA_REG(off));
|
|
}
|
|
|
|
static u_int
|
|
src_get16_mem(struct sr_hardc *hc, u_int off)
|
|
{
|
|
return bus_space_read_2(hc->bt_memory, hc->bh_memory,
|
|
SRC_PCI_SCA_REG(off));
|
|
}
|
|
|
|
static void
|
|
src_put8_mem(struct sr_hardc *hc, u_int off, u_int val)
|
|
{
|
|
bus_space_write_1(hc->bt_memory, hc->bh_memory,
|
|
SRC_PCI_SCA_REG(off), val);
|
|
}
|
|
|
|
static void
|
|
src_put16_mem(struct sr_hardc *hc, u_int off, u_int val)
|
|
{
|
|
bus_space_write_2(hc->bt_memory, hc->bh_memory,
|
|
SRC_PCI_SCA_REG(off), val);
|
|
}
|