NetBSD-5.0.2/sys/arch/mips/atheros/arbus.c
/* $Id: arbus.c,v 1.10 2006/09/04 05:17:26 gdamore Exp $ */
/*
* Copyright (c) 2006 Urbana-Champaign Independent Media Center.
* Copyright (c) 2006 Garrett D'Amore.
* All rights reserved.
*
* This code was written by Garrett D'Amore for the Champaign-Urbana
* Community Wireless Network Project.
*
* 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 acknowledgements:
* This product includes software developed by the Urbana-Champaign
* Independent Media Center.
* This product includes software developed by Garrett D'Amore.
* 4. Urbana-Champaign Independent Media Center's name and Garrett
* D'Amore's name may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE URBANA-CHAMPAIGN INDEPENDENT
* MEDIA CENTER AND GARRETT D'AMORE ``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 URBANA-CHAMPAIGN INDEPENDENT
* MEDIA CENTER OR GARRETT D'AMORE 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>
__KERNEL_RCSID(0, "$NetBSD: arbus.c,v 1.10 2006/09/04 05:17:26 gdamore Exp $");
#include "locators.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/extent.h>
#include <sys/malloc.h>
#define _MIPS_BUS_DMA_PRIVATE
#include <machine/bus.h>
#include <mips/atheros/include/ar5312reg.h>
#include <mips/atheros/include/ar531xvar.h>
#include <mips/atheros/include/arbusvar.h>
static int arbus_match(struct device *, struct cfdata *, void *);
static void arbus_attach(struct device *, struct device *, void *);
static int arbus_print(void *, const char *);
static void arbus_bus_mem_init(bus_space_tag_t, void *);
static void arbus_dma_init(struct device *, bus_dma_tag_t);
struct arbus_intrhand {
int ih_cirq;
int ih_mirq;
void *ih_cookie;
};
CFATTACH_DECL(arbus, sizeof(struct device), arbus_match, arbus_attach,
NULL, NULL);
struct mips_bus_space arbus_mbst;
struct mips_bus_dma_tag arbus_mdt;
void
arbus_init(void)
{
static int done = 0;
if (done)
return;
done++;
arbus_bus_mem_init(&arbus_mbst, NULL);
arbus_dma_init(NULL, &arbus_mdt);
}
/* this primarily exists so we can get to the console... */
bus_space_tag_t
arbus_get_bus_space_tag(void)
{
arbus_init();
return (&arbus_mbst);
}
bus_dma_tag_t
arbus_get_bus_dma_tag(void)
{
arbus_init();
return (&arbus_mdt);
}
int
arbus_match(struct device *parent, struct cfdata *match, void *aux)
{
return 1;
}
void
arbus_attach(struct device *parent, struct device *self, void *aux)
{
struct arbus_attach_args aa;
const struct ar531x_device *devices;
int i;
printf("\n");
int locs[ARBUSCF_NLOCS];
arbus_init();
for (i = 0, devices = ar531x_get_devices(); devices[i].name; i++) {
aa.aa_name = devices[i].name;
aa.aa_size = devices[i].size;
aa.aa_dmat = &arbus_mdt;
aa.aa_bst = &arbus_mbst;
aa.aa_cirq = devices[i].cirq;
aa.aa_mirq = devices[i].mirq;
aa.aa_addr = devices[i].addr;
locs[ARBUSCF_ADDR] = aa.aa_addr;
if (ar531x_enable_device(&devices[i]) != 0) {
continue;
}
(void) config_found_sm_loc(self, "arbus", locs, &aa,
arbus_print, config_stdsubmatch);
}
}
int
arbus_print(void *aux, const char *pnp)
{
struct arbus_attach_args *aa = aux;
if (pnp)
aprint_normal("%s at %s", aa->aa_name, pnp);
if (aa->aa_addr)
aprint_normal(" addr 0x%lx", aa->aa_addr);
if (aa->aa_cirq >= 0)
aprint_normal(" cpu irq %d", aa->aa_cirq);
if (aa->aa_mirq >= 0)
aprint_normal(" misc irq %d", aa->aa_mirq);
return (UNCONF);
}
void *
arbus_intr_establish(int cirq, int mirq, int (*handler)(void *), void *arg)
{
struct arbus_intrhand *ih;
ih = malloc(sizeof(*ih), M_DEVBUF, M_NOWAIT);
if (ih == NULL)
return NULL;
ih->ih_cirq = ih->ih_mirq = -1;
ih->ih_cookie = NULL;
if (mirq >= 0) {
ih->ih_mirq = mirq;
ih->ih_cookie = ar531x_misc_intr_establish(mirq, handler, arg);
} else if (cirq >= 0) {
ih->ih_cirq = cirq;
ih->ih_cookie = ar531x_cpu_intr_establish(cirq, handler, arg);
} else
return ih;
if (ih->ih_cookie == NULL) {
free(ih, M_DEVBUF);
return NULL;
}
return ih;
}
void
arbus_intr_disestablish(void *arg)
{
struct arbus_intrhand *ih = arg;
if (ih->ih_mirq >= 0)
ar531x_misc_intr_disestablish(ih->ih_cookie);
else if (ih->ih_cirq >= 0)
ar531x_cpu_intr_disestablish(ih->ih_cookie);
free(ih, M_DEVBUF);
}
void
arbus_dma_init(struct device *sc, bus_dma_tag_t pdt)
{
bus_dma_tag_t t;
t = pdt;
t->_cookie = sc;
t->_wbase = 0;
t->_physbase = 0;
t->_wsize = MIPS_KSEG1_START - MIPS_KSEG0_START;
t->_dmamap_create = _bus_dmamap_create;
t->_dmamap_destroy = _bus_dmamap_destroy;
t->_dmamap_load = _bus_dmamap_load;
t->_dmamap_load_mbuf = _bus_dmamap_load_mbuf;
t->_dmamap_load_uio = _bus_dmamap_load_uio;
t->_dmamap_load_raw = _bus_dmamap_load_raw;
t->_dmamap_unload = _bus_dmamap_unload;
t->_dmamap_sync = _bus_dmamap_sync;
t->_dmamem_alloc = _bus_dmamem_alloc;
t->_dmamem_free = _bus_dmamem_free;
t->_dmamem_map = _bus_dmamem_map;
t->_dmamem_unmap = _bus_dmamem_unmap;
t->_dmamem_mmap = _bus_dmamem_mmap;
}
/*
* CPU memory/register stuff
*/
#define CHIP arbus
#define CHIP_MEM /* defined */
#define CHIP_W1_BUS_START(v) 0x00000000UL
#define CHIP_W1_BUS_END(v) 0x1fffffffUL
#define CHIP_W1_SYS_START(v) CHIP_W1_BUS_START(v)
#define CHIP_W1_SYS_END(v) CHIP_W1_BUS_END(v)
#include <mips/mips/bus_space_alignstride_chipdep.c>