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freebsd-dev/sys/dev/usb/ukbd.c

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/* $NetBSD: ukbd.c,v 1.22 1999/01/09 12:10:36 drochner Exp $ */
/* FreeBSD $Id: ukbd.c,v 1.5 1999/01/07 23:31:34 n_hibma Exp $ */
/*
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Lennart Augustsson (augustss@carlstedt.se) at
* Carlstedt Research & Technology.
*
* 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 acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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.
*/
/*
* Information about USB keyboard can be found in the USB HID spec.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#if defined(__NetBSD__)
#include <sys/device.h>
#include <sys/ioctl.h>
#elif defined(__FreeBSD__)
#include <sys/ioccom.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <machine/clock.h>
#endif
#include <sys/tty.h>
#include <sys/file.h>
#include <sys/select.h>
#include <sys/proc.h>
#include <sys/vnode.h>
#include <sys/poll.h>
#include <dev/usb/usb.h>
#include <dev/usb/usbhid.h>
#include <dev/usb/usbdi.h>
#include <dev/usb/usbdi_util.h>
#include <dev/usb/usbdevs.h>
#include <dev/usb/usb_quirks.h>
#include <dev/usb/hid.h>
#if defined(__NetBSD__)
#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wskbdvar.h>
#include <dev/wscons/wsksymdef.h>
#include <dev/wscons/wsksymvar.h>
#include <dev/wscons/wskbdmap_mfii.h>
#include "opt_pckbd_layout.h"
#include "opt_wsdisplay_compat.h"
#elif defined(__FreeBSD__)
#include <machine/clock.h>
#define delay(d) DELAY(d)
#endif
#ifdef USB_DEBUG
#define DPRINTF(x) if (ukbddebug) printf x
#define DPRINTFN(n,x) if (ukbddebug>(n)) printf x
int ukbddebug = 0;
#else
#define DPRINTF(x)
#define DPRINTFN(n,x)
#endif
#define UPROTO_BOOT_KEYBOARD 1
#define NKEYCODE 6
#define NUM_LOCK 0x01
#define CAPS_LOCK 0x02
#define SCROLL_LOCK 0x04
struct ukbd_data {
u_int8_t modifiers;
#define MOD_CONTROL_L 0x01
#define MOD_CONTROL_R 0x10
#define MOD_SHIFT_L 0x02
#define MOD_SHIFT_R 0x20
#define MOD_ALT_L 0x04
#define MOD_ALT_R 0x40
#define MOD_WIN_L 0x08
#define MOD_WIN_R 0x80
u_int8_t reserved;
u_int8_t keycode[NKEYCODE];
};
#define PRESS 0
#define RELEASE 0x100
#define NMOD 6
static struct {
int mask, key;
} ukbd_mods[NMOD] = {
{ MOD_CONTROL_L, 29 },
{ MOD_CONTROL_R, 58 },
{ MOD_SHIFT_L, 42 },
{ MOD_SHIFT_R, 54 },
{ MOD_ALT_L, 56 },
{ MOD_ALT_R, 184 },
};
#define NN 0 /* no translation */
/*
* Translate USB keycodes to US keyboard AT scancodes.
* Scancodes >= 128 represent EXTENDED keycodes.
*/
static u_int8_t ukbd_trtab[256] = {
0, 0, 0, 0, 30, 48, 46, 32, /* 00 - 07 */
18, 33, 34, 35, 23, 36, 37, 38, /* 08 - 0F */
50, 49, 24, 25, 16, 19, 31, 20, /* 10 - 17 */
22, 47, 17, 45, 21, 44, 2, 3, /* 18 - 1F */
4, 5, 6, 7, 8, 9, 10, 11, /* 20 - 27 */
28, 1, 14, 15, 57, 12, 13, 26, /* 28 - 2F */
27, 43, NN, 39, 40, 41, 51, 52, /* 30 - 37 */
53, 58, 59, 60, 61, 62, 63, 64, /* 38 - 3F */
65, 66, 67, 68, 87, 88, 170, 70, /* 40 - 47 */
127, 210, 199, 201, 211, 207, 209, 205, /* 48 - 4F */
203, 208, 200, 69, 181, 55, 74, 78, /* 50 - 57 */
156, 79, 80, 81, 75, 76, 77, 71, /* 58 - 5F */
72, 73, 82, 83, NN, NN, NN, NN, /* 60 - 67 */
NN, NN, NN, NN, NN, NN, NN, NN, /* 68 - 6F */
NN, NN, NN, NN, NN, NN, 221, NN, /* 70 - 77 */
NN, NN, NN, NN, NN, NN, NN, NN, /* 78 - 7F */
NN, NN, NN, NN, NN, NN, NN, NN, /* 80 - 87 */
NN, NN, NN, NN, NN, NN, NN, NN, /* 88 - 8F */
NN, NN, NN, NN, NN, NN, NN, NN, /* 90 - 97 */
NN, NN, NN, NN, NN, NN, NN, NN, /* 98 - 9F */
NN, NN, NN, NN, NN, NN, NN, NN, /* A0 - A7 */
NN, NN, NN, NN, NN, NN, NN, NN, /* A8 - AF */
NN, NN, NN, NN, NN, NN, NN, NN, /* B0 - B7 */
NN, NN, NN, NN, NN, NN, NN, NN, /* B8 - BF */
NN, NN, NN, NN, NN, NN, NN, NN, /* C0 - C7 */
NN, NN, NN, NN, NN, NN, NN, NN, /* C8 - CF */
NN, NN, NN, NN, NN, NN, NN, NN, /* D0 - D7 */
NN, NN, NN, NN, NN, NN, NN, NN, /* D8 - DF */
NN, NN, NN, NN, NN, NN, NN, NN, /* E0 - E7 */
NN, NN, NN, 219, NN, NN, NN, 220, /* E8 - EF */
NN, NN, NN, NN, NN, NN, NN, NN, /* F0 - F7 */
NN, NN, NN, NN, NN, NN, NN, NN, /* F8 - FF */
};
#define KEY_ERROR 0x01
#define MAXKEYS (NMOD+2*NKEYCODE)
struct ukbd_softc {
bdevice sc_dev; /* base device */
usbd_interface_handle sc_iface; /* interface */
usbd_pipe_handle sc_intrpipe; /* interrupt pipe */
int sc_ep_addr;
struct ukbd_data sc_ndata;
struct ukbd_data sc_odata;
char sc_enabled;
char sc_disconnected; /* device is gone */
int sc_leds;
#if defined(__NetBSD__)
struct device *sc_wskbddev;
#ifdef WSDISPLAY_COMPAT_RAWKBD
#define REP_DELAY1 400
#define REP_DELAYN 100
int sc_rawkbd;
int sc_nrep;
char sc_rep[MAXKEYS];
#endif
int sc_polling;
int sc_pollchar;
#endif
};
#define UKBDUNIT(dev) (minor(dev))
#define UKBD_CHUNK 128 /* chunk size for read */
#define UKBD_BSIZE 1020 /* buffer size */
void ukbd_cngetc __P((void *, u_int *, int *));
void ukbd_cnpollc __P((void *, int));
#if defined(__NetBSD__)
const struct wskbd_consops ukbd_consops = {
ukbd_cngetc,
ukbd_cnpollc,
};
#endif
void ukbd_intr __P((usbd_request_handle, usbd_private_handle, usbd_status));
void ukbd_disco __P((void *));
int ukbd_enable __P((void *, int));
void ukbd_set_leds __P((void *, int));
#if defined(__NetBSD__)
int ukbd_ioctl __P((void *, u_long, caddr_t, int, struct proc *));
int ukbd_cnattach __P((void *v));
void ukbd_rawrepeat __P((void *v));
const struct wskbd_accessops ukbd_accessops = {
ukbd_enable,
ukbd_set_leds,
ukbd_ioctl,
#if 0
ukbd_cnattach,
#endif
};
const struct wskbd_mapdata ukbd_keymapdata = {
pckbd_keydesctab,
#ifdef PCKBD_LAYOUT
PCKBD_LAYOUT,
#else
KB_US,
#endif
};
#endif
USB_DECLARE_DRIVER(ukbd);
USB_MATCH(ukbd)
{
USB_MATCH_START(ukbd, uaa);
usb_interface_descriptor_t *id;
/* Check that this is a keyboard that speaks the boot protocol. */
if (!uaa->iface)
return (UMATCH_NONE);
id = usbd_get_interface_descriptor(uaa->iface);
if (!id ||
id->bInterfaceClass != UCLASS_HID ||
id->bInterfaceSubClass != USUBCLASS_BOOT ||
id->bInterfaceProtocol != UPROTO_BOOT_KEYBOARD)
return (UMATCH_NONE);
return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
}
USB_ATTACH(ukbd)
{
USB_ATTACH_START(ukbd, sc, uaa);
usbd_interface_handle iface = uaa->iface;
usb_interface_descriptor_t *id;
usb_endpoint_descriptor_t *ed;
usbd_status r;
char devinfo[1024];
#if defined(__NetBSD__)
struct wskbddev_attach_args a;
#endif
sc->sc_disconnected = 1;
sc->sc_iface = iface;
id = usbd_get_interface_descriptor(iface);
usbd_devinfo(uaa->device, 0, devinfo);
USB_ATTACH_SETUP;
printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev),
devinfo, id->bInterfaceClass, id->bInterfaceSubClass);
ed = usbd_interface2endpoint_descriptor(iface, 0);
if (!ed) {
printf("%s: could not read endpoint descriptor\n",
USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
DPRINTFN(10,("ukbd_attach: bLength=%d bDescriptorType=%d "
"bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d"
" bInterval=%d\n",
ed->bLength, ed->bDescriptorType,
ed->bEndpointAddress & UE_ADDR,
ed->bEndpointAddress & UE_IN ? "in" : "out",
ed->bmAttributes & UE_XFERTYPE,
UGETW(ed->wMaxPacketSize), ed->bInterval));
if ((ed->bEndpointAddress & UE_IN) != UE_IN ||
(ed->bmAttributes & UE_XFERTYPE) != UE_INTERRUPT) {
printf("%s: unexpected endpoint\n",
USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
if ((usbd_get_quirks(uaa->device)->uq_flags & UQ_NO_SET_PROTO) == 0) {
r = usbd_set_protocol(iface, 0);
DPRINTFN(5, ("ukbd_attach: protocol set\n"));
if (r != USBD_NORMAL_COMPLETION) {
printf("%s: set protocol failed\n",
USBDEVNAME(sc->sc_dev));
USB_ATTACH_ERROR_RETURN;
}
}
/* Ignore if SETIDLE fails since it is not crucial. */
usbd_set_idle(iface, 0, 0);
sc->sc_ep_addr = ed->bEndpointAddress;
sc->sc_disconnected = 0;
#if defined(__NetBSD__)
a.console = 0;
a.keymap = &ukbd_keymapdata;
a.accessops = &ukbd_accessops;
a.accesscookie = sc;
/* Flash the leds; no real purpose, just shows we're alive. */
ukbd_set_leds(sc, WSKBD_LED_SCROLL | WSKBD_LED_NUM | WSKBD_LED_CAPS);
usbd_delay_ms(uaa->device, 300);
ukbd_set_leds(sc, 0);
sc->sc_wskbddev = config_found(self, &a, wskbddevprint);
#elif defined(__FreeBSD__)
/* XXX why waste CPU in delay() ? */
/* It's alive! IT'S ALIVE! Do a little song and dance. */
ukbd_set_leds(sc, NUM_LOCK);
delay(15000);
ukbd_set_leds(sc, CAPS_LOCK);
delay(20000);
ukbd_set_leds(sc, SCROLL_LOCK);
delay(30000);
ukbd_set_leds(sc, CAPS_LOCK);
delay(50000);
ukbd_set_leds(sc, NUM_LOCK);
ukbd_enable(sc, 1);
#endif
USB_ATTACH_SUCCESS_RETURN;
}
#if defined(__FreeBSD__)
int
ukbd_detach(device_t self)
{
struct ukbd_softc *sc = device_get_softc(self);
char *devinfo = (char *) device_get_desc(self);
if (sc->sc_enabled)
return (ENXIO);
if (devinfo) {
device_set_desc(self, NULL);
free(devinfo, M_USB);
}
return (0);
}
#endif
void
ukbd_disco(p)
void *p;
{
struct ukbd_softc *sc = p;
DPRINTF(("ukbd_disco: sc=%p\n", sc));
usbd_abort_pipe(sc->sc_intrpipe);
sc->sc_disconnected = 1;
}
int
ukbd_enable(v, on)
void *v;
int on;
{
struct ukbd_softc *sc = v;
usbd_status r;
if (on) {
/* Set up interrupt pipe. */
if (sc->sc_enabled)
return (EBUSY);
sc->sc_enabled = 1;
r = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr,
USBD_SHORT_XFER_OK,
&sc->sc_intrpipe, sc, &sc->sc_ndata,
sizeof(sc->sc_ndata), ukbd_intr);
if (r != USBD_NORMAL_COMPLETION)
return (EIO);
usbd_set_disco(sc->sc_intrpipe, ukbd_disco, sc);
} else {
/* Disable interrupts. */
usbd_abort_pipe(sc->sc_intrpipe);
usbd_close_pipe(sc->sc_intrpipe);
sc->sc_enabled = 0;
}
return (0);
}
void
ukbd_intr(reqh, addr, status)
usbd_request_handle reqh;
usbd_private_handle addr;
usbd_status status;
{
struct ukbd_softc *sc = addr;
struct ukbd_data *ud = &sc->sc_ndata;
int mod, omod;
int ibuf[MAXKEYS]; /* chars events */
int nkeys, i, j;
int key, c;
#define ADDKEY(c) ibuf[nkeys++] = (c)
DPRINTFN(5, ("ukbd_intr: status=%d\n", status));
if (status == USBD_CANCELLED)
return;
if (status != USBD_NORMAL_COMPLETION) {
DPRINTF(("ukbd_intr: status=%d\n", status));
usbd_clear_endpoint_stall_async(sc->sc_intrpipe);
return;
}
DPRINTFN(5, (" mod=0x%02x key0=0x%02x key1=0x%02x\n",
ud->modifiers, ud->keycode[0], ud->keycode[1]));
if (ud->keycode[0] == KEY_ERROR)
return; /* ignore */
nkeys = 0;
mod = ud->modifiers;
omod = sc->sc_odata.modifiers;
if (mod != omod)
for (i = 0; i < NMOD; i++)
if (( mod & ukbd_mods[i].mask) !=
(omod & ukbd_mods[i].mask))
ADDKEY(ukbd_mods[i].key |
(mod & ukbd_mods[i].mask
? PRESS : RELEASE));
if (memcmp(ud->keycode, sc->sc_odata.keycode, NKEYCODE) != 0) {
/* Check for released keys. */
for (i = 0; i < NKEYCODE; i++) {
key = sc->sc_odata.keycode[i];
if (key == 0)
continue;
for (j = 0; j < NKEYCODE; j++)
if (key == ud->keycode[j])
goto rfound;
c = ukbd_trtab[key];
if (c)
ADDKEY(c | RELEASE);
rfound:
;
}
/* Check for pressed keys. */
for (i = 0; i < NKEYCODE; i++) {
key = ud->keycode[i];
if (key == 0)
continue;
for (j = 0; j < NKEYCODE; j++)
if (key == sc->sc_odata.keycode[j])
goto pfound;
c = ukbd_trtab[key];
DPRINTFN(2,("ukbd_intr: press key=0x%02x -> 0x%02x\n",
key, c));
if (c)
ADDKEY(c | PRESS);
pfound:
;
}
}
sc->sc_odata = *ud;
if (nkeys == 0)
return;
#if defined(__NetBSD__)
if (sc->sc_polling) {
DPRINTFN(1,("ukbd_intr: pollchar = 0x%02x\n", ibuf[0]));
if (nkeys > 0)
sc->sc_pollchar = ibuf[0]; /* XXX lost keys? */
return;
}
#ifdef WSDISPLAY_COMPAT_RAWKBD
if (sc->sc_rawkbd) {
char cbuf[MAXKEYS * 2];
int npress;
for (npress = i = j = 0; i < nkeys; i++, j++) {
c = ibuf[i];
if (c & 0x80)
cbuf[j++] = 0xe0;
cbuf[j] = c & 0x7f;
if (c & RELEASE)
cbuf[j] |= 0x80;
else {
/* remember keys for autorepeat */
if (c & 0x80)
sc->sc_rep[npress++] = 0xe0;
sc->sc_rep[npress++] = c & 0x7f;
}
}
wskbd_rawinput(sc->sc_wskbddev, cbuf, j);
untimeout(ukbd_rawrepeat, sc);
if (npress != 0) {
sc->sc_nrep = npress;
timeout(ukbd_rawrepeat, sc, hz * REP_DELAY1 / 1000);
}
return;
}
#endif
for (i = 0; i < nkeys; i++) {
c = ibuf[i];
wskbd_input(sc->sc_wskbddev,
c & RELEASE ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN,
c & 0xff);
}
#elif defined(__FreeBSD__)
/* XXX shouldn't the keys be used? */
for (i = 0; i < nkeys; i++) {
c = ibuf[i];
printf("%c (%d) %s\n",
((c&0xff) < 32 || (c&0xff) > 126? '.':(c&0xff)), c,
(c&RELEASE? "released":"pressed"));
if (ud->modifiers)
printf("0x%04x\n", ud->modifiers);
for (i = 0; i < NKEYCODE; i++)
if (ud->keycode[i])
printf("%d ", ud->keycode[i]);
printf("\n");
}
#endif
}
void
ukbd_set_leds(v, leds)
void *v;
int leds;
{
struct ukbd_softc *sc = v;
u_int8_t res;
DPRINTF(("ukbd_set_leds: sc=%p leds=%d\n", sc, leds));
sc->sc_leds = leds;
#if defined(__NetBSD__)
res = 0;
if (leds & WSKBD_LED_SCROLL)
res |= SCROLL_LOCK;
if (leds & WSKBD_LED_NUM)
res |= NUM_LOCK;
if (leds & WSKBD_LED_CAPS)
res |= CAPS_LOCK;
#elif defined(__FreeBSD__)
res = leds;
#endif
usbd_set_report_async(sc->sc_iface, UHID_OUTPUT_REPORT, 0, &res, 1);
}
#if defined(__NetBSD__)
#ifdef WSDISPLAY_COMPAT_RAWKBD
void
ukbd_rawrepeat(v)
void *v;
{
struct ukbd_softc *sc = v;
wskbd_rawinput(sc->sc_wskbddev, sc->sc_rep, sc->sc_nrep);
timeout(ukbd_rawrepeat, sc, hz * REP_DELAYN / 1000);
}
#endif
int
ukbd_ioctl(v, cmd, data, flag, p)
void *v;
u_long cmd;
caddr_t data;
int flag;
struct proc *p;
{
struct ukbd_softc *sc = v;
switch (cmd) {
case WSKBDIO_GTYPE:
*(int *)data = WSKBD_TYPE_USB;
return (0);
case WSKBDIO_SETLEDS:
ukbd_set_leds(v, *(int *)data);
return (0);
case WSKBDIO_GETLEDS:
*(int *)data = sc->sc_leds;
return (0);
#ifdef WSDISPLAY_COMPAT_RAWKBD
case WSKBDIO_SETMODE:
DPRINTF(("ukbd_ioctl: set raw = %d\n", *(int *)data));
sc->sc_rawkbd = *(int *)data == WSKBD_RAW;
untimeout(ukbd_rawrepeat, sc);
return (0);
#endif
}
return (-1);
}
/* Console interface. */
void
ukbd_cngetc(v, type, data)
void *v;
u_int *type;
int *data;
{
struct ukbd_softc *sc = v;
usbd_lock_token s;
int c;
DPRINTFN(1,("ukbd_cngetc: enter\n"));
s = usbd_lock();
sc->sc_polling = 1;
sc->sc_pollchar = -1;
while(sc->sc_pollchar == -1)
usbd_dopoll(sc->sc_iface);
sc->sc_polling = 0;
c = sc->sc_pollchar;
*type = c & RELEASE ? WSCONS_EVENT_KEY_UP : WSCONS_EVENT_KEY_DOWN;
*data = c & 0xff;
usbd_unlock(s);
DPRINTFN(1,("ukbd_cngetc: return 0x%02x\n", c));
}
void
ukbd_cnpollc(v, on)
void *v;
int on;
{
struct ukbd_softc *sc = v;
DPRINTFN(2,("ukbd_cnpollc: sc=%p on=%d\n", v, on));
usbd_set_polling(sc->sc_iface, on);
}
int
ukbd_cnattach(v)
void *v;
{
struct ukbd_softc *sc = v;
DPRINTF(("ukbd_cnattach: sc=%p\n", sc));
wskbd_cnattach(&ukbd_consops, sc, &ukbd_keymapdata);
return (0);
}
#endif /* NetBSD */
#if defined(__FreeBSD__)
DRIVER_MODULE(ukbd, usb, ukbd_driver, ukbd_devclass, usbd_driver_load, 0);
#endif
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