555 lines
13 KiB
C
555 lines
13 KiB
C
/*-
|
|
* Copyright (c) 2000 Nick Sayer
|
|
* 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.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
/* spic -- the Sony Programmable I/O Controller
|
|
*
|
|
* This device exists on most recent Sony laptops. It is the means by which
|
|
* you can watch the Jog Dial and some other functions.
|
|
*
|
|
* At the moment, this driver merely tries to turn the jog dial into a
|
|
* device that moused can park on, with the intent of supplying a Z axis
|
|
* and mouse button out of the jog dial. I suspect that this device will
|
|
* end up having to support at least 2 different minor devices: One to be
|
|
* the jog wheel device for moused to camp out on and the other to perform
|
|
* all of the other miscellaneous functions of this device. But for now,
|
|
* the jog wheel is all you get.
|
|
*
|
|
* At the moment, the data sent back by the device is rather primitive.
|
|
* It sends a single character per event:
|
|
* u = up, d = down -- that's the jog button
|
|
* l = left, r = right -- that's the dial.
|
|
* "left" and "right" are rather capricious. They actually represent
|
|
* ccw and cw, respectively
|
|
*
|
|
* What documentation exists is thanks to Andrew Tridge, and his page at
|
|
* http://samba.org/picturebook/ Special thanks also to Ian Dowse, who
|
|
* also provided sample code upon which this driver was based.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/module.h>
|
|
#include <sys/bus.h>
|
|
#include <machine/bus.h>
|
|
#include <sys/rman.h>
|
|
#include <machine/resource.h>
|
|
#include <isa/isavar.h>
|
|
#include <sys/poll.h>
|
|
#include <machine/pci_cfgreg.h>
|
|
#include <sys/tty.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/fcntl.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/uio.h>
|
|
|
|
#include <i386/isa/spicreg.h>
|
|
|
|
static int spic_pollrate;
|
|
|
|
SYSCTL_INT(_machdep, OID_AUTO, spic_pollrate, CTLFLAG_RW, &spic_pollrate, 0, "")
|
|
;
|
|
|
|
devclass_t spic_devclass;
|
|
|
|
static d_open_t spicopen;
|
|
static d_close_t spicclose;
|
|
static d_read_t spicread;
|
|
static d_ioctl_t spicioctl;
|
|
static d_poll_t spicpoll;
|
|
|
|
static struct cdevsw spic_cdevsw = {
|
|
.d_version = D_VERSION,
|
|
.d_flags = D_NEEDGIANT,
|
|
.d_open = spicopen,
|
|
.d_close = spicclose,
|
|
.d_read = spicread,
|
|
.d_ioctl = spicioctl,
|
|
.d_poll = spicpoll,
|
|
.d_name = "spic",
|
|
};
|
|
|
|
#define SCBUFLEN 128
|
|
|
|
struct spic_softc {
|
|
u_int sc_port_addr;
|
|
u_char sc_intr;
|
|
struct resource *sc_port_res,*sc_intr_res;
|
|
int sc_port_rid,sc_intr_rid;
|
|
int sc_opened;
|
|
int sc_sleeping;
|
|
int sc_buttonlast;
|
|
struct callout_handle sc_timeout_ch;
|
|
device_t sc_dev;
|
|
struct selinfo sc_rsel;
|
|
u_char sc_buf[SCBUFLEN];
|
|
int sc_count;
|
|
int sc_model;
|
|
};
|
|
|
|
static void
|
|
write_port1(struct spic_softc *sc, u_char val)
|
|
{
|
|
DELAY(10);
|
|
outb(sc->sc_port_addr, val);
|
|
}
|
|
|
|
static void
|
|
write_port2(struct spic_softc *sc, u_char val)
|
|
{
|
|
DELAY(10);
|
|
outb(sc->sc_port_addr + 4, val);
|
|
}
|
|
|
|
static u_char
|
|
read_port1(struct spic_softc *sc)
|
|
{
|
|
DELAY(10);
|
|
return inb(sc->sc_port_addr);
|
|
}
|
|
|
|
static u_char
|
|
read_port2(struct spic_softc *sc)
|
|
{
|
|
DELAY(10);
|
|
return inb(sc->sc_port_addr + 4);
|
|
}
|
|
|
|
static u_char
|
|
read_port_cst(struct spic_softc *sc)
|
|
{
|
|
DELAY(10);
|
|
return inb(SPIC_CST_IOPORT);
|
|
}
|
|
|
|
static void
|
|
busy_wait(struct spic_softc *sc)
|
|
{
|
|
int i=0;
|
|
|
|
while(read_port2(sc) & 2) {
|
|
DELAY(10);
|
|
if (i++>10000) {
|
|
printf("spic busy wait abort\n");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
busy_wait_cst(struct spic_softc *sc, int mask)
|
|
{
|
|
int i=0;
|
|
|
|
while(read_port_cst(sc) & mask) {
|
|
DELAY(10);
|
|
if (i++>10000) {
|
|
printf("spic busy wait abort\n");
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
static u_char
|
|
spic_call1(struct spic_softc *sc, u_char dev) {
|
|
busy_wait(sc);
|
|
write_port2(sc, dev);
|
|
read_port2(sc);
|
|
return read_port1(sc);
|
|
}
|
|
|
|
static u_char
|
|
spic_call2(struct spic_softc *sc, u_char dev, u_char fn)
|
|
{
|
|
busy_wait(sc);
|
|
write_port2(sc, dev);
|
|
busy_wait(sc);
|
|
write_port1(sc, fn);
|
|
return read_port1(sc);
|
|
}
|
|
|
|
static void
|
|
spic_ecrset(struct spic_softc *sc, u_int16_t addr, u_int16_t value)
|
|
{
|
|
busy_wait_cst(sc, 3);
|
|
outb(SPIC_CST_IOPORT, 0x81);
|
|
busy_wait_cst(sc, 2);
|
|
outb(SPIC_DATA_IOPORT, addr);
|
|
busy_wait_cst(sc, 2);
|
|
outb(SPIC_DATA_IOPORT, value);
|
|
busy_wait_cst(sc, 2);
|
|
}
|
|
|
|
static void
|
|
spic_type2_srs(struct spic_softc *sc)
|
|
{
|
|
spic_ecrset(sc, SPIC_SHIB, (sc->sc_port_addr & 0xFF00) >> 8);
|
|
spic_ecrset(sc, SPIC_SLOB, sc->sc_port_addr & 0x00FF);
|
|
spic_ecrset(sc, SPIC_SIRQ, 0x00); /* using polling mode (IRQ=0)*/
|
|
DELAY(10);
|
|
}
|
|
|
|
static int
|
|
spic_probe(device_t dev)
|
|
{
|
|
struct spic_softc *sc;
|
|
u_char t, spic_irq;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
/*
|
|
* We can only have 1 of these. Attempting to probe for a unit 1
|
|
* will destroy the work we did for unit 0
|
|
*/
|
|
if (device_get_unit(dev))
|
|
return ENXIO;
|
|
|
|
bzero(sc, sizeof(struct spic_softc));
|
|
|
|
if (!(sc->sc_port_res = bus_alloc_resource(dev, SYS_RES_IOPORT,
|
|
&sc->sc_port_rid, 0, ~0, 5, RF_ACTIVE))) {
|
|
device_printf(dev,"Couldn't map I/O\n");
|
|
return ENXIO;
|
|
}
|
|
sc->sc_port_addr = (u_short)rman_get_start(sc->sc_port_res);
|
|
|
|
#ifdef notyet
|
|
if (!(sc->sc_intr_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
|
|
&sc->sc_intr_rid, RF_ACTIVE))) {
|
|
device_printf(dev,"Couldn't map IRQ\n");
|
|
bus_release_resource(dev, SYS_RES_IOPORT,
|
|
sc->sc_port_rid, sc->sc_port_res);
|
|
return ENXIO;
|
|
}
|
|
sc->sc_intr = (u_short)rman_get_start(sc->sc_intr_res);
|
|
|
|
switch (sc->sc_intr) {
|
|
case 0: spic_irq = 3; break;
|
|
case 5: spic_irq = 0; break;
|
|
case 0xa: spic_irq = 1; break;
|
|
case 0xb: spic_irq = 2; break;
|
|
default: device_printf(dev,"Invalid IRQ\n");
|
|
bus_release_resource(dev, SYS_RES_IOPORT,
|
|
sc->sc_port_rid, sc->sc_port_res);
|
|
bus_release_resource(dev, SYS_RES_IRQ,
|
|
sc->sc_intr_rid, sc->sc_intr_res);
|
|
return ENXIO;
|
|
}
|
|
#else
|
|
spic_irq = 3;
|
|
#endif
|
|
|
|
#if 0
|
|
if (sc->sc_port_addr != 0x10A0) {
|
|
bus_release_resource(dev, SYS_RES_IOPORT,
|
|
sc->sc_port_rid, sc->sc_port_res);
|
|
bus_release_resource(dev, SYS_RES_IRQ,
|
|
sc->sc_intr_rid, sc->sc_intr_res);
|
|
return ENXIO;
|
|
}
|
|
#endif
|
|
|
|
/* PIIX4 chipset at least? */
|
|
if (pci_cfgregread(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, 0, 4) ==
|
|
PIIX4_DEVID) {
|
|
sc->sc_model = SPIC_DEVICE_MODEL_TYPE1;
|
|
} else {
|
|
/* For newer VAIOs (R505, SRX7, ...) */
|
|
sc->sc_model = SPIC_DEVICE_MODEL_TYPE2;
|
|
}
|
|
|
|
/*
|
|
* This is an ugly hack. It is necessary until ACPI works correctly.
|
|
*
|
|
* The SPIC consists of 2 registers. They are mapped onto I/O by the
|
|
* PIIX4's General Device 10 function. There is also an interrupt
|
|
* control port at a somewhat magic location, but this first pass is
|
|
* polled.
|
|
*
|
|
* So the first thing we need to do is map the G10 space in.
|
|
*
|
|
*/
|
|
|
|
/* Enable ACPI mode to get Fn key events */
|
|
/* XXX This may slow down your VAIO if ACPI is not supported in the kernel.
|
|
outb(0xb2, 0xf0);
|
|
*/
|
|
|
|
device_printf(dev,"device model type = %d\n", sc->sc_model);
|
|
|
|
if(sc->sc_model == SPIC_DEVICE_MODEL_TYPE1) {
|
|
pci_cfgregwrite(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10A,
|
|
sc->sc_port_addr, 2);
|
|
t = pci_cfgregread(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, 1);
|
|
t &= 0xf0;
|
|
t |= 4;
|
|
pci_cfgregwrite(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, t, 1);
|
|
outw(SPIC_IRQ_PORT, (inw(SPIC_IRQ_PORT) & ~(0x3 << SPIC_IRQ_SHIFT)) | (spic_irq << SPIC_IRQ_SHIFT));
|
|
t = pci_cfgregread(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, 1);
|
|
t &= 0x1f;
|
|
t |= 0xc0;
|
|
pci_cfgregwrite(PIIX4_BUS, PIIX4_SLOT, PIIX4_FUNC, G10L, t, 1);
|
|
} else {
|
|
spic_type2_srs(sc);
|
|
}
|
|
|
|
/*
|
|
* XXX: Should try and see if there's anything actually there.
|
|
*/
|
|
|
|
device_set_desc(dev, "Sony Programmable I/O Controller");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
spic_attach(device_t dev)
|
|
{
|
|
struct spic_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
sc->sc_dev = dev;
|
|
|
|
spic_pollrate = (hz/50); /* Every 50th of a second */
|
|
|
|
spic_call1(sc, 0x82);
|
|
spic_call2(sc, 0x81, 0xff);
|
|
spic_call1(sc, 0x92);
|
|
|
|
/* There can be only one */
|
|
make_dev(&spic_cdevsw, 0, 0, 0, 0600, "jogdial");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
spictimeout(void *arg)
|
|
{
|
|
struct spic_softc *sc = arg;
|
|
u_char b, event, param;
|
|
int j;
|
|
|
|
if (!sc->sc_opened) {
|
|
device_printf(sc->sc_dev, "timeout called while closed!\n");
|
|
return;
|
|
}
|
|
|
|
event = read_port2(sc);
|
|
param = read_port1(sc);
|
|
|
|
if ((event != 4) && (!(event & 0x1)))
|
|
switch(event) {
|
|
case 0x10: /* jog wheel event (type1) */
|
|
if (sc->sc_model == SPIC_DEVICE_MODEL_TYPE1) {
|
|
b = !!(param & 0x40);
|
|
if (b != sc->sc_buttonlast) {
|
|
sc->sc_buttonlast = b;
|
|
sc->sc_buf[sc->sc_count++] =
|
|
b?'d':'u';
|
|
}
|
|
j = (param & 0xf) | ((param & 0x10)? ~0xf:0);
|
|
if (j<0)
|
|
while(j++!=0) {
|
|
sc->sc_buf[sc->sc_count++] =
|
|
'l';
|
|
}
|
|
else if (j>0)
|
|
while(j--!=0) {
|
|
sc->sc_buf[sc->sc_count++] =
|
|
'r';
|
|
}
|
|
}
|
|
break;
|
|
case 0x08: /* jog wheel event (type2) */
|
|
case 0x00:
|
|
/* SPIC_DEVICE_MODEL_TYPE2 returns jog wheel event=0x00 */
|
|
if (sc->sc_model == SPIC_DEVICE_MODEL_TYPE2) {
|
|
b = !!(param & 0x40);
|
|
if (b != sc->sc_buttonlast) {
|
|
sc->sc_buttonlast = b;
|
|
sc->sc_buf[sc->sc_count++] =
|
|
b?'d':'u';
|
|
}
|
|
j = (param & 0xf) | ((param & 0x10)? ~0xf:0);
|
|
if (j<0)
|
|
while(j++!=0) {
|
|
sc->sc_buf[sc->sc_count++] =
|
|
'l';
|
|
}
|
|
else if (j>0)
|
|
while(j--!=0) {
|
|
sc->sc_buf[sc->sc_count++] =
|
|
'r';
|
|
}
|
|
}
|
|
break;
|
|
case 0x60: /* Capture button */
|
|
printf("Capture button event: %x\n",param);
|
|
break;
|
|
case 0x30: /* Lid switch */
|
|
printf("Lid switch event: %x\n",param);
|
|
break;
|
|
case 0x0c: /* We must ignore these type of event for C1VP... */
|
|
case 0x70: /* Closing/Opening the lid on C1VP */
|
|
break;
|
|
default:
|
|
printf("Unknown event: event %02x param %02x\n", event, param);
|
|
break;
|
|
}
|
|
else {
|
|
/* No event. Wait some more */
|
|
sc->sc_timeout_ch = timeout(spictimeout, sc, spic_pollrate);
|
|
return;
|
|
}
|
|
|
|
if (sc->sc_count) {
|
|
if (sc->sc_sleeping) {
|
|
sc->sc_sleeping = 0;
|
|
wakeup( sc);
|
|
}
|
|
selwakeuppri(&sc->sc_rsel, PZERO);
|
|
}
|
|
spic_call2(sc, 0x81, 0xff); /* Clear event */
|
|
|
|
sc->sc_timeout_ch = timeout(spictimeout, sc, spic_pollrate);
|
|
}
|
|
|
|
static int
|
|
spicopen(struct cdev *dev, int flag, int fmt, struct thread *td)
|
|
{
|
|
struct spic_softc *sc;
|
|
|
|
sc = devclass_get_softc(spic_devclass, 0);
|
|
|
|
if (sc->sc_opened)
|
|
return EBUSY;
|
|
|
|
sc->sc_opened++;
|
|
sc->sc_count=0;
|
|
|
|
/* Start the polling */
|
|
timeout(spictimeout, sc, spic_pollrate);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
spicclose(struct cdev *dev, int flag, int fmt, struct thread *td)
|
|
{
|
|
struct spic_softc *sc;
|
|
|
|
sc = devclass_get_softc(spic_devclass, 0);
|
|
|
|
/* Stop polling */
|
|
untimeout(spictimeout, sc, sc->sc_timeout_ch);
|
|
sc->sc_opened = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
spicread(struct cdev *dev, struct uio *uio, int flag)
|
|
{
|
|
struct spic_softc *sc;
|
|
int l, s, error;
|
|
u_char buf[SCBUFLEN];
|
|
|
|
sc = devclass_get_softc(spic_devclass, 0);
|
|
|
|
if (uio->uio_resid <= 0) /* What kind of a read is this?! */
|
|
return 0;
|
|
|
|
s = spltty();
|
|
while (!(sc->sc_count)) {
|
|
sc->sc_sleeping=1;
|
|
error = tsleep( sc, PZERO | PCATCH, "jogrea", 0);
|
|
sc->sc_sleeping=0;
|
|
if (error) {
|
|
splx(s);
|
|
return error;
|
|
}
|
|
}
|
|
splx(s);
|
|
|
|
s = spltty();
|
|
l = min(uio->uio_resid, sc->sc_count);
|
|
bcopy(sc->sc_buf, buf, l);
|
|
sc->sc_count -= l;
|
|
bcopy(sc->sc_buf + l, sc->sc_buf, l);
|
|
splx(s);
|
|
return uiomove(buf, l, uio);
|
|
|
|
}
|
|
|
|
static int
|
|
spicioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
|
|
{
|
|
struct spic_softc *sc;
|
|
|
|
sc = devclass_get_softc(spic_devclass, 0);
|
|
|
|
return EIO;
|
|
}
|
|
|
|
static int
|
|
spicpoll(struct cdev *dev, int events, struct thread *td)
|
|
{
|
|
struct spic_softc *sc;
|
|
int revents = 0, s;
|
|
|
|
sc = devclass_get_softc(spic_devclass, 0);
|
|
s = spltty();
|
|
if (events & (POLLIN | POLLRDNORM)) {
|
|
if (sc->sc_count)
|
|
revents |= events & (POLLIN | POLLRDNORM);
|
|
else
|
|
selrecord(td, &sc->sc_rsel); /* Who shall we wake? */
|
|
}
|
|
splx(s);
|
|
|
|
return revents;
|
|
}
|
|
|
|
|
|
static device_method_t spic_methods[] = {
|
|
DEVMETHOD(device_probe, spic_probe),
|
|
DEVMETHOD(device_attach, spic_attach),
|
|
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t spic_driver = {
|
|
"spic",
|
|
spic_methods,
|
|
sizeof(struct spic_softc),
|
|
};
|
|
|
|
DRIVER_MODULE(spic, isa, spic_driver, spic_devclass, 0, 0);
|
|
|