NetBSD-5.0.2/sys/arch/playstation2/dev/wdc_spd.c
/* $NetBSD: wdc_spd.c,v 1.24 2008/04/28 20:23:31 martin Exp $ */
/*-
* Copyright (c) 2001, 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by UCHIYAMA Yasushi.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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>
__KERNEL_RCSID(0, "$NetBSD: wdc_spd.c,v 1.24 2008/04/28 20:23:31 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#define __read_1(a) \
({ \
u_int32_t ra_ = (a); \
u_int8_t r = (*(volatile u_int8_t *)ra_); \
\
if (ra_ == 0xb400004e) /* (wdc)STAT LED off */ \
SPD_LED_OFF(); \
\
(r); \
})
#define __write_1(a, v) \
{ \
u_int32_t wa_ = (a); \
(*(volatile u_int8_t *)wa_) = (v); \
\
if (wa_ == 0xb400004e) /* (wdc)CMD LED on */ \
SPD_LED_ON(); \
}
#define _PLAYSTATION2_BUS_SPACE_PRIVATE
#include <machine/bus.h>
#include <dev/ata/atavar.h>
#include <dev/ic/wdcvar.h>
#include <playstation2/ee/eevar.h>
#include <playstation2/dev/spdvar.h>
#include <playstation2/dev/spdreg.h>
#define WDC_SPD_HDD_AUXREG_OFFSET 0x1c
struct wdc_spd_softc {
struct wdc_softc sc_wdcdev;
struct ata_channel *sc_chanlist[1];
struct ata_channel sc_channel;
struct ata_queue sc_chqueue;
struct wdc_regs sc_wdc_regs;
void *sc_ih;
};
#ifdef DEBUG
#define STATIC
#else
#define STATIC static
#endif
STATIC int wdc_spd_match(device_t, cfdata_t, void *);
STATIC void wdc_spd_attach(device_t, device_t, void *);
CFATTACH_DECL_NEW(wdc_spd, sizeof (struct wdc_spd_softc),
wdc_spd_match, wdc_spd_attach, NULL, NULL);
extern struct cfdriver wdc_cd;
STATIC void __wdc_spd_enable(void);
STATIC void __wdc_spd_disable(void) __attribute__((__unused__));
STATIC void __wdc_spd_bus_space(struct ata_channel *);
/*
* wdc register is 16 bit wide.
*/
#define VADDR(h, o) ((h) + (o))
_BUS_SPACE_READ(_wdc_spd, 1, 8)
_BUS_SPACE_READ(_wdc_spd, 2, 16)
_BUS_SPACE_READ_MULTI(_wdc_spd, 1, 8)
_BUS_SPACE_READ_MULTI(_wdc_spd, 2, 16)
_BUS_SPACE_READ_REGION(_wdc_spd, 1, 8)
_BUS_SPACE_READ_REGION(_wdc_spd, 2, 16)
_BUS_SPACE_WRITE(_wdc_spd, 1, 8)
_BUS_SPACE_WRITE(_wdc_spd, 2, 16)
_BUS_SPACE_WRITE_MULTI(_wdc_spd, 1, 8)
_BUS_SPACE_WRITE_MULTI(_wdc_spd, 2, 16)
_BUS_SPACE_WRITE_REGION(_wdc_spd, 1, 8)
_BUS_SPACE_WRITE_REGION(_wdc_spd, 2, 16)
_BUS_SPACE_SET_MULTI(_wdc_spd, 1, 8)
_BUS_SPACE_SET_MULTI(_wdc_spd, 2, 16)
_BUS_SPACE_SET_REGION(_wdc_spd, 1, 8)
_BUS_SPACE_SET_REGION(_wdc_spd, 2, 16)
_BUS_SPACE_COPY_REGION(_wdc_spd, 1, 8)
_BUS_SPACE_COPY_REGION(_wdc_spd, 2, 16)
#undef VADDR
STATIC const struct playstation2_bus_space _wdc_spd_space = {
pbs_map : _BUS_SPACE_NO_MAP,
pbs_unmap : _BUS_SPACE_NO_UNMAP,
pbs_subregion : _BUS_SPACE_NO_SUBREGION,
pbs_alloc : _BUS_SPACE_NO_ALLOC,
pbs_free : _BUS_SPACE_NO_FREE,
pbs_vaddr : _BUS_SPACE_NO_VADDR,
pbs_r_1 : _wdc_spd_read_1,
pbs_r_2 : _wdc_spd_read_2,
pbs_r_4 : _BUS_SPACE_NO_READ(4, 32),
pbs_r_8 : _BUS_SPACE_NO_READ(8, 64),
pbs_rm_1 : _wdc_spd_read_multi_1,
pbs_rm_2 : _wdc_spd_read_multi_2,
pbs_rm_4 : _BUS_SPACE_NO_READ_MULTI(4, 32),
pbs_rm_8 : _BUS_SPACE_NO_READ_MULTI(8, 64),
pbs_rr_1 : _wdc_spd_read_region_1,
pbs_rr_2 : _wdc_spd_read_region_2,
pbs_rr_4 : _BUS_SPACE_NO_READ_REGION(4, 32),
pbs_rr_8 : _BUS_SPACE_NO_READ_REGION(8, 64),
pbs_w_1 : _wdc_spd_write_1,
pbs_w_2 : _wdc_spd_write_2,
pbs_w_4 : _BUS_SPACE_NO_WRITE(4, 32),
pbs_w_8 : _BUS_SPACE_NO_WRITE(8, 64),
pbs_wm_1 : _wdc_spd_write_multi_1,
pbs_wm_2 : _wdc_spd_write_multi_2,
pbs_wm_4 : _BUS_SPACE_NO_WRITE_MULTI(4, 32),
pbs_wm_8 : _BUS_SPACE_NO_WRITE_MULTI(8, 64),
pbs_wr_1 : _wdc_spd_write_region_1,
pbs_wr_2 : _wdc_spd_write_region_2,
pbs_wr_4 : _BUS_SPACE_NO_WRITE_REGION(4, 32),
pbs_wr_8 : _BUS_SPACE_NO_WRITE_REGION(8, 64),
pbs_sm_1 : _wdc_spd_set_multi_1,
pbs_sm_2 : _wdc_spd_set_multi_2,
pbs_sm_4 : _BUS_SPACE_NO_SET_MULTI(4, 32),
pbs_sm_8 : _BUS_SPACE_NO_SET_MULTI(8, 64),
pbs_sr_1 : _wdc_spd_set_region_1,
pbs_sr_2 : _wdc_spd_set_region_2,
pbs_sr_4 : _BUS_SPACE_NO_SET_REGION(4, 32),
pbs_sr_8 : _BUS_SPACE_NO_SET_REGION(8, 64),
pbs_c_1 : _wdc_spd_copy_region_1,
pbs_c_2 : _wdc_spd_copy_region_2,
pbs_c_4 : _BUS_SPACE_NO_COPY_REGION(4, 32),
pbs_c_8 : _BUS_SPACE_NO_COPY_REGION(8, 64),
};
int
wdc_spd_match(device_t parent, cfdata_t cf, void *aux)
{
struct spd_attach_args *spa = aux;
struct ata_channel ch;
struct wdc_softc wdc;
struct wdc_regs wdr;
int i, result;
if (spa->spa_slot != SPD_HDD)
return (0);
memset(&wdc, 0, sizeof(wdc));
memset(&ch, 0, sizeof(ch));
ch.ch_atac = &wdc.sc_atac;
wdc.regs = &wdr;
__wdc_spd_bus_space(&ch);
for (i = 0, result = 0; i < 8; i++) { /* 8 sec */
if (result == 0)
result = wdcprobe(&ch);
delay(1000000);
}
return (result);
}
void
wdc_spd_attach(device_t parent, device_t self, void *aux)
{
struct spd_attach_args *spa = aux;
struct wdc_spd_softc *sc = device_private(self);
struct wdc_softc *wdc = &sc->sc_wdcdev;
struct ata_channel *ch = &sc->sc_channel;
aprint_normal(": %s\n", spa->spa_product_name);
sc->sc_wdcdev.sc_atac.atac_dev = self;
sc->sc_wdcdev.regs = &sc->sc_wdc_regs;
wdc->sc_atac.atac_cap =
ATAC_CAP_DMA | ATAC_CAP_UDMA | ATAC_CAP_DATA16;
wdc->sc_atac.atac_pio_cap = 0;
sc->sc_chanlist[0] = &sc->sc_channel;
wdc->sc_atac.atac_channels = sc->sc_chanlist;
wdc->sc_atac.atac_nchannels = 1;
ch->ch_channel = 0;
ch->ch_atac = &sc->sc_wdcdev.sc_atac;
ch->ch_queue = &sc->sc_chqueue;
ch->ch_ndrive = 2;
__wdc_spd_bus_space(ch);
spd_intr_establish(SPD_HDD, wdcintr, &sc->sc_channel);
__wdc_spd_enable();
wdcattach(&sc->sc_channel);
}
void
__wdc_spd_bus_space(struct ata_channel *ch)
{
struct wdc_regs *wdr = CHAN_TO_WDC_REGS(ch);
int i;
wdr->cmd_iot = &_wdc_spd_space;
for (i = 0; i < 8; i++)
wdr->cmd_iohs[i] = SPD_HDD_IO_BASE + i * 2; /* wdc register is 16 bit wide. */
wdc_init_shadow_regs(ch);
wdr->ctl_iot = &_wdc_spd_space;
wdr->ctl_ioh = SPD_HDD_IO_BASE + WDC_SPD_HDD_AUXREG_OFFSET;
wdr->data32iot = wdr->cmd_iot;
wdr->data32ioh = SPD_HDD_IO_BASE;
}
void
__wdc_spd_enable()
{
u_int16_t r;
r = _reg_read_2(SPD_INTR_ENABLE_REG16);
r |= SPD_INTR_HDD;
_reg_write_2(SPD_INTR_ENABLE_REG16, r);
}
void
__wdc_spd_disable()
{
u_int16_t r;
r = _reg_read_2(SPD_INTR_ENABLE_REG16);
r &= ~SPD_INTR_HDD;
_reg_write_2(SPD_INTR_ENABLE_REG16, r);
}