NetBSD-5.0.2/sys/arch/hpcmips/tx/tx39io.c
/* $NetBSD: tx39io.c,v 1.21 2008/04/28 20:23:21 martin Exp $ */
/*-
* Copyright (c) 1999-2001 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: tx39io.c,v 1.21 2008/04/28 20:23:21 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <machine/bus.h>
#include <hpcmips/tx/tx39var.h>
#include <hpcmips/tx/tx39icureg.h>
#define __TX39IO_PRIVATE
#include <hpcmips/tx/tx39iovar.h>
#include <hpcmips/tx/tx39ioreg.h>
#ifdef TX39IO_DEBUG
#define DPRINTF_ENABLE
#define DPRINTF_DEBUG tx39io_debug
#endif
#include <machine/debug.h>
#define ISBITSET(x, s) ((x) & (1 << (s)))
int tx39io_match(struct device *, struct cfdata *, void *);
void tx39io_attach(struct device *, struct device *, void *);
CFATTACH_DECL(tx39io, sizeof(struct tx39io_softc),
tx39io_match, tx39io_attach, NULL, NULL);
/* IO/MFIO common */
static void port_intr_disestablish(hpcio_chip_t, hpcio_intr_handle_t);
static void port_intr_clear(hpcio_chip_t, hpcio_intr_handle_t);
/* MFIO */
static void *mfio_intr_establish(hpcio_chip_t, int, int, int (*)(void *),
void *);
static int mfio_in(hpcio_chip_t, int);
static void mfio_out(hpcio_chip_t, int, int);
static int mfio_intr_map(int *, int, int);
static void mfio_dump(hpcio_chip_t);
static void mfio_update(hpcio_chip_t);
/* IO */
static void *io_intr_establish(hpcio_chip_t, int, int, int (*)(void *),
void *);
#ifdef TX391X
static int tx391x_io_in(hpcio_chip_t, int);
static void tx391x_io_out(hpcio_chip_t, int, int);
static void tx391x_io_update(hpcio_chip_t);
static int tx391x_io_intr_map(int *, int, int);
#endif
#ifdef TX392X
static int tx392x_io_in(hpcio_chip_t, int);
static void tx392x_io_out(hpcio_chip_t, int, int);
static void tx392x_io_update(hpcio_chip_t);
static int tx392x_io_intr_map(int *, int, int);
#endif
#if defined TX391X && defined TX392X
#define tx39_io_intr_map(t, s, p, m) \
(IS_TX391X(t)
? tx391x_io_intr_map(s, p, m) : tx392x_io_intr_map(s, p, m))
#elif defined TX391X
#define tx39io_intr_map(t, s, p, m) tx391x_io_intr_map(s, p, m)
#elif defined TX392X
#define tx39io_intr_map(t, s, p, m) tx392x_io_intr_map(s, p, m)
#endif
static void io_dump(hpcio_chip_t);
static void __print_port_status(struct tx39io_port_status *, int);
int
tx39io_match(struct device *parent, struct cfdata *cf, void *aux)
{
return (ATTACH_FIRST); /* 1st attach group of txsim */
}
void
tx39io_attach(struct device *parent, struct device *self, void *aux)
{
struct txsim_attach_args *ta = aux;
struct tx39io_softc *sc = (void *)self;
tx_chipset_tag_t tc;
struct hpcio_chip *io_hc = &sc->sc_io_ops;
struct hpcio_chip *mfio_hc = &sc->sc_mfio_ops;
tc = sc->sc_tc = ta->ta_tc;
printf("\n");
sc->sc_stat_io_mask = ~(1 << 5); /* exclude Plum2 INT */
sc->sc_stat_mfio_mask = ~(0x3|(0x3 << 23));
/* IO */
io_hc->hc_chipid = IO;
io_hc->hc_name = "IO";
io_hc->hc_sc = sc;
io_hc->hc_intr_establish = io_intr_establish;
io_hc->hc_intr_disestablish = port_intr_disestablish;
io_hc->hc_intr_clear = port_intr_clear;
io_hc->hc_dump = io_dump;
if (IS_TX391X(tc)) {
#ifdef TX391X
io_hc->hc_portread = tx391x_io_in;
io_hc->hc_portwrite = tx391x_io_out;
io_hc->hc_update = tx391x_io_update;
#endif
} else if (IS_TX392X(tc)) {
#ifdef TX392X
io_hc->hc_portread = tx392x_io_in;
io_hc->hc_portwrite = tx392x_io_out;
io_hc->hc_update = tx392x_io_update;
#endif
}
tx_conf_register_ioman(tc, io_hc);
/* MFIO */
mfio_hc->hc_chipid = MFIO;
mfio_hc->hc_name = "MFIO";
mfio_hc->hc_sc = sc;
mfio_hc->hc_portread = mfio_in;
mfio_hc->hc_portwrite = mfio_out;
mfio_hc->hc_intr_establish = mfio_intr_establish;
mfio_hc->hc_intr_disestablish = port_intr_disestablish;
mfio_hc->hc_update = mfio_update;
mfio_hc->hc_dump = mfio_dump;
tx_conf_register_ioman(tc, mfio_hc);
hpcio_update(io_hc);
hpcio_update(mfio_hc);
#ifdef TX39IO_DEBUG
hpcio_dump(io_hc);
hpcio_dump(mfio_hc);
printf("IO i0x%08x o0x%08x MFIO i0x%08x o0x%08x\n",
sc->sc_stat_io.in, sc->sc_stat_io.out,
sc->sc_stat_mfio.in, sc->sc_stat_mfio.out);
#endif /* TX39IO_DEBUG */
}
/*
* TX391X, TX392X common
*/
static void *
io_intr_establish(hpcio_chip_t arg, int port, int mode, int (*func)(void *),
void *func_arg)
{
struct tx39io_softc *sc = arg->hc_sc;
int src;
if (tx39io_intr_map(sc->sc_tc, &src, port, mode) != 0)
return (0);
return (tx_intr_establish(sc->sc_tc, src, IST_EDGE, IPL_CLOCK, func,
func_arg));
}
static void *
mfio_intr_establish(hpcio_chip_t arg, int port, int mode, int (*func)(void *),
void *func_arg)
{
struct tx39io_softc *sc = arg->hc_sc;
int src;
if (mfio_intr_map(&src, port, mode) != 0)
return (0);
return (tx_intr_establish(sc->sc_tc, src, IST_EDGE, IPL_CLOCK, func,
func_arg));
}
static void
port_intr_disestablish(hpcio_chip_t arg, void *ih)
{
struct tx39io_softc *sc = arg->hc_sc;
tx_intr_disestablish(sc->sc_tc, ih);
}
static void
port_intr_clear(hpcio_chip_t arg, void *ih)
{
}
static void
mfio_out(hpcio_chip_t arg, int port, int onoff)
{
struct tx39io_softc *sc = arg->hc_sc;
tx_chipset_tag_t tc;
txreg_t reg, pos;
DPRINTF("port #%d\n", port);
tc = sc->sc_tc;
/* MFIO */
pos = 1 << port;
#ifdef DIAGNOSTIC
if (!(sc->sc_stat_mfio.dir & pos)) {
panic("%s: MFIO%d is not output port.",
sc->sc_dev.dv_xname, port);
}
#endif
reg = tx_conf_read(tc, TX39_IOMFIODATAOUT_REG);
if (onoff)
reg |= pos;
else
reg &= ~pos;
tx_conf_write(tc, TX39_IOMFIODATAOUT_REG, reg);
}
static int
mfio_in(hpcio_chip_t arg, int port)
{
struct tx39io_softc *sc __attribute__((__unused__)) = arg->hc_sc ;
DPRINTF("port #%d\n", port);
return (tx_conf_read(sc->sc_tc, TX39_IOMFIODATAIN_REG) & (1 << port));
}
static int
mfio_intr_map(int *src, int port, int mode)
{
if (mode & HPCIO_INTR_POSEDGE) {
*src = MAKEINTR(3, (1 << port));
return (0);
} else if (mode & HPCIO_INTR_NEGEDGE) {
*src = MAKEINTR(4, (1 << port));
return (0);
}
DPRINTF("invalid interrupt mode.\n");
return (1);
}
static void
mfio_update(hpcio_chip_t arg)
{
struct tx39io_softc *sc = arg->hc_sc;
tx_chipset_tag_t tc = sc->sc_tc;
struct tx39io_port_status *stat_mfio = &sc->sc_stat_mfio;
sc->sc_ostat_mfio = *stat_mfio; /* save old status */
stat_mfio->dir = tx_conf_read(tc, TX39_IOMFIODATADIR_REG);
stat_mfio->in = tx_conf_read(tc, TX39_IOMFIODATAIN_REG);
stat_mfio->out = tx_conf_read(tc, TX39_IOMFIODATAOUT_REG);
stat_mfio->power = tx_conf_read(tc, TX39_IOMFIOPOWERDWN_REG);
stat_mfio->u.select = tx_conf_read(tc, TX39_IOMFIODATASEL_REG);
}
#ifdef TX391X
/*
* TMPR3912 specific
*/
int
tx391x_io_in(hpcio_chip_t arg, int port)
{
struct tx39io_softc *sc __attribute__((__unused__)) = arg->hc_sc;
txreg_t reg = tx_conf_read(sc->sc_tc, TX39_IOCTRL_REG);
DPRINTF("port #%d\n", port);
return (TX391X_IOCTRL_IODIN(reg) & (1 << port));
}
void
tx391x_io_out(hpcio_chip_t arg, int port, int onoff)
{
struct tx39io_softc *sc = arg->hc_sc;
tx_chipset_tag_t tc;
txreg_t reg, pos, iostat;
KASSERT(sc);
DPRINTF("port #%d\n", port);
tc = sc->sc_tc;
/* IO [0:6] */
pos = 1 << port;
#ifdef DIAGNOSTIC
if (!(sc->sc_stat_io.dir & pos))
panic("%s: IO%d is not output port.", sc->sc_dev.dv_xname,
port);
#endif
reg = tx_conf_read(tc, TX39_IOCTRL_REG);
iostat = TX391X_IOCTRL_IODOUT(reg);
if (onoff)
iostat |= pos;
else
iostat &= ~pos;
TX391X_IOCTRL_IODOUT_CLR(reg);
reg = TX391X_IOCTRL_IODOUT_SET(reg, iostat);
tx_conf_write(tc, TX39_IOCTRL_REG, reg);
}
void
tx391x_io_update(hpcio_chip_t arg)
{
struct tx39io_softc *sc = arg->hc_sc;
struct tx39io_port_status *stat_io = &sc->sc_stat_io;
tx_chipset_tag_t tc = sc->sc_tc;
txreg_t reg;
/* IO [0:6] */
sc->sc_ostat_io = *stat_io; /* save old status */
reg = tx_conf_read(tc, TX39_IOCTRL_REG);
stat_io->dir = TX391X_IOCTRL_IODIREC(reg);
stat_io->in = TX391X_IOCTRL_IODIN(reg);
stat_io->out = TX391X_IOCTRL_IODOUT(reg);
stat_io->u.debounce = TX391X_IOCTRL_IODEBSEL(reg);
reg = tx_conf_read(tc, TX39_IOIOPOWERDWN_REG);
stat_io->power = TX391X_IOIOPOWERDWN_IOPD(reg);
}
int
tx391x_io_intr_map(int *src, int port, int mode)
{
if (mode & HPCIO_INTR_POSEDGE) {
*src = MAKEINTR(5, (1 << (port + 7)));
return (0);
} else if (mode & HPCIO_INTR_NEGEDGE) {
*src = MAKEINTR(5, (1 << port));
return (0);
}
DPRINTF("invalid interrupt mode.\n");
return (1);
}
#endif /* TX391X */
#ifdef TX392X
/*
* TMPR3922 specific
*/
int
tx392x_io_in(hpcio_chip_t arg, int port)
{
struct tx39io_softc *sc __attribute__((__unused__)) = arg->hc_sc;
txreg_t reg = tx_conf_read(sc->sc_tc, TX392X_IODATAINOUT_REG);
DPRINTF("port #%d\n", port);
return (TX392X_IODATAINOUT_DIN(reg) & (1 << port));
}
void
tx392x_io_out(hpcio_chip_t arg, int port, int onoff)
{
struct tx39io_softc *sc = arg->hc_sc;
#ifdef DIAGNOSTIC
const char *devname = sc->sc_dev.dv_xname;
#endif
tx_chipset_tag_t tc = sc->sc_tc;
txreg_t reg, pos, iostat;
DPRINTF("port #%d\n", port);
/* IO [0:15] */
pos = 1 << port;
#ifdef DIAGNOSTIC
if (!(sc->sc_stat_io.dir & pos))
panic("%s: IO%d is not output port.", devname, port);
#endif
reg = tx_conf_read(tc, TX392X_IODATAINOUT_REG);
iostat = TX392X_IODATAINOUT_DOUT(reg);
if (onoff)
iostat |= pos;
else
iostat &= ~pos;
TX392X_IODATAINOUT_DOUT_CLR(reg);
reg = TX392X_IODATAINOUT_DOUT_SET(reg, iostat);
tx_conf_write(tc, TX392X_IODATAINOUT_REG, reg);
}
int
tx392x_io_intr_map(int *src, int port, int mode)
{
if (mode & HPCIO_INTR_POSEDGE) {
*src = MAKEINTR(8, (1 << (port + 16)));
return (0);
} else if (mode & HPCIO_INTR_NEGEDGE) {
*src = MAKEINTR(8, (1 << port));
return (0);
}
DPRINTF("invalid interrupt mode.\n");
return (1);
}
void
tx392x_io_update(hpcio_chip_t arg)
{
struct tx39io_softc *sc = arg->hc_sc;
struct tx39io_port_status *stat_io = &sc->sc_stat_io;
tx_chipset_tag_t tc = sc->sc_tc;
txreg_t reg;
sc->sc_ostat_io = *stat_io; /* save old status */
/* IO [0:15] */
reg = tx_conf_read(tc, TX39_IOCTRL_REG);
stat_io->dir = TX392X_IOCTRL_IODIREC(reg);
stat_io->u.debounce = TX392X_IOCTRL_IODEBSEL(reg);
reg = tx_conf_read(tc, TX392X_IODATAINOUT_REG);
stat_io->in = TX392X_IODATAINOUT_DIN(reg);
stat_io->out = TX392X_IODATAINOUT_DOUT(reg);
reg = tx_conf_read(tc, TX39_IOIOPOWERDWN_REG);
stat_io->power = TX392X_IOIOPOWERDWN_IOPD(reg);
}
#endif /* TX392X */
static const char *line = "--------------------------------------------------"
"------------\n";
static void
mfio_dump(hpcio_chip_t arg)
{
struct tx39io_softc *sc = arg->hc_sc;
const struct tx39io_mfio_map *map = tx39io_get_mfio_map(tc);
struct tx39io_port_status *stat;
int i;
printf("%s", line);
stat = &sc->sc_stat_mfio;
for (i = TX39_IO_MFIO_MAX - 1; i >= 0 ; i--) {
/* MFIO port has power down state */
printf("MFIO %2d: - ", i);
__print_port_status(stat, i);
printf(ISBITSET(stat->u.select, i) ? " MFIO(%s)\n" : " %s\n",
map[i].std_pin_name);
}
printf("%s", line);
}
static void
io_dump(hpcio_chip_t arg)
{
struct tx39io_softc *sc = arg->hc_sc;
struct tx39io_port_status *stat;
int i;
printf("%s Debounce Direction DataOut DataIn PowerDown Select"
"\n%s", line, line);
stat = &sc->sc_stat_io;
for (i = tx39io_get_io_max(tc) - 1; i >= 0 ; i--) {
/* IO port has debouncer */
printf("IO %2d: %s ", i,
ISBITSET(stat->u.debounce, i) ? "On " : "Off");
__print_port_status(stat, i);
printf(" -\n");
}
}
static void
__print_port_status(struct tx39io_port_status *stat, int i)
{
printf("%s %d %d %s",
ISBITSET(stat->dir, i) ? "Out" : "In ",
ISBITSET(stat->out, i) ? 1 : 0,
ISBITSET(stat->in, i) ? 1 : 0,
ISBITSET(stat->power, i) ? "Down ": "Active");
}