/*
* Copyright (C) 1998 Colin Wood
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Colin Wood.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
int ams_enable(void *);
int ams_ioctl(void *, u_long, void *, int, struct lwp *);
void ams_disable(void *);
/*
* handle tapping the trackpad
* different pads report different button counts and use slightly different
* protocols
*/
static void ams_mangle_2(struct ams_softc *, int);
static void ams_mangle_4(struct ams_softc *, int);
static int sysctl_ams_tap(SYSCTLFN_ARGS);
/*
* Initialize extended mouse support -- probes devices as described
* in Inside Macintosh: Devices, Chapter 5 "ADB Manager".
*
* Extended Mouse Protocol is documented in TechNote HW1:
* "ADB - The Untold Story: Space Aliens Ate My Mouse"
*
* Supports: Extended Mouse Protocol, MicroSpeed Mouse Deluxe,
* Mouse Systems A^3 Mouse, Logitech non-EMP MouseMan
*/
void
ems_init(struct ams_softc *sc)
{
int adbaddr;
short cmd;
u_char buffer[9];
adbaddr = sc->adbaddr;
if (sc->origaddr != ADBADDR_MS)
return;
if (sc->handler_id == ADBMS_USPEED ||
sc->handler_id == ADBMS_UCONTOUR) {
/* Found MicroSpeed Mouse Deluxe Mac or Contour Mouse */
cmd = ADBLISTEN(adbaddr, 1);
/*
* To setup the MicroSpeed or the Contour, it appears
* that we can send the following command to the mouse
* and then expect data back in the form:
* buffer[0] = 4 (bytes)
* buffer[1], buffer[2] as std. mouse
* buffer[3] = buffer[4] = 0xff when no buttons
* are down. When button N down, bit N is clear.
* buffer[4]'s locking mask enables a
* click to toggle the button down state--sort of
* like the "Easy Access" shift/control/etc. keys.
* buffer[3]'s alternative speed mask enables using
* different speed when the corr. button is down
*/
buffer[0] = 4;
buffer[1] = 0x00; /* Alternative speed */
buffer[2] = 0x00; /* speed = maximum */
buffer[3] = 0x10; /* enable extended protocol,
* lower bits = alt. speed mask
* = 0000b
*/
buffer[4] = 0x07; /* Locking mask = 0000b,
* enable buttons = 0111b
*/
adb_op_sync((Ptr)buffer, NULL, (Ptr)0, cmd);
sc->sc_buttons = 3;
sc->sc_res = 400;
if (buffer[2] == 0x21)
sc->sc_class = MSCLASS_TRACKBALL;
else
sc->sc_class = MSCLASS_MOUSE;
} else
/* unknown device? */;
} else {
/* Attempt to initialize as an A3 mouse */
buffer[2] = 0x03; /* make handler ID 3 */
cmd = ADBLISTEN(adbaddr, 3);
if (adb_op_sync((Ptr)buffer, NULL, (Ptr)0, cmd)) {
#ifdef ADB_DEBUG
if (adb_debug)
printf("adb: ems_init timed out\n");
#endif
return;
}
/*
* Check to see if successful, if not
* try to initialize it as other types
*/
cmd = ADBTALK(adbaddr, 3);
if (adb_op_sync((Ptr)buffer, NULL, (Ptr)0, cmd) == 0
&& buffer[2] == ADBMS_MSA3) {
sc->handler_id = ADBMS_MSA3;
/* Initialize as above */
cmd = ADBLISTEN(adbaddr, 2);
/* listen 2 */
buffer[0] = 3;
buffer[1] = 0x00;
/* Irrelevant, buffer has 0x77 */
buffer[2] = 0x07;
/*
* enable 3 button mode = 0111b,
* speed = normal
*/
adb_op_sync((Ptr)buffer, NULL, (Ptr)0, cmd);
sc->sc_buttons = 3;
sc->sc_res = 300;
} else {
/* No special support for this mouse */
}
}
}
}
/*
* Handle putting the mouse data received from the ADB into
* an ADB event record.
*/
void
ms_adbcomplete(uint8_t *buffer, uint8_t *data_area, int adb_command)
{
adb_event_t event;
struct ams_softc *sc;
int adbaddr;
#ifdef ADB_DEBUG
int i;
if (adb_debug)
printf("adb: transaction completion\n");
#endif
#ifdef ADB_DEBUG
if (adb_debug) {
printf("ams: from %d at %d (org %d) %d:", event.addr,
event.hand_id, event.def_addr, buffer[0]);
for (i = 1; i <= buffer[0]; i++)
printf(" %x", buffer[i]);
printf("\n");
}
#endif
microtime(&event.timestamp);
ms_processevent(&event, sc);
}
/*
* Given a mouse ADB event, record the button settings, calculate the
* x- and y-axis motion, and handoff the event to the appropriate subsystem.
*/
static void
ms_processevent(adb_event_t *event, struct ams_softc *sc)
{
adb_event_t new_event;
int i, button_bit, max_byte, mask, buttons, dx, dy;
new_event = *event;
buttons = 0;
/*
* This should handle both plain ol' Apple mice and mice
* that claim to support the Extended Apple Mouse Protocol.
*/
max_byte = event->byte_count;
button_bit = 1;
switch (event->hand_id) {
case ADBMS_USPEED:
case ADBMS_UCONTOUR:
/* MicroSpeed mouse and Contour mouse */
if (max_byte == 4)
buttons = (~event->bytes[2]) & 0xff;
else
buttons = (event->bytes[0] & 0x80) ? 0 : 1;
break;
case ADBMS_MSA3:
/* Mouse Systems A3 mouse */
if (max_byte == 3)
buttons = (~event->bytes[2]) & 0x07;
else
buttons = (event->bytes[0] & 0x80) ? 0 : 1;
break;
default:
/* Classic Mouse Protocol (up to 2 buttons) */
for (i = 0; i < 2; i++, button_bit <<= 1)
/* 0 when button down */
if (!(event->bytes[i] & 0x80))
buttons |= button_bit;
else
buttons &= ~button_bit;
/* Extended Protocol (up to 6 more buttons) */
for (mask = 0x80; i < max_byte;
i += (mask == 0x80), button_bit <<= 1) {
/* 0 when button down */
if (!(event->bytes[i] & mask))
buttons |= button_bit;
else
buttons &= ~button_bit;
mask = ((mask >> 4) & 0xf)
| ((mask & 0xf) << 4);
}
break;
}
static void
ams_mangle_2(struct ams_softc *sc, int buttons)
{
if (buttons & 4) {
/* finger down on pad */
if (sc->sc_down == 0) {
sc->sc_down = 1;
sc->sc_x = 0;
sc->sc_y = 0;
}
}
if (buttons & 8) {
/* finger up */
if (sc->sc_down) {
if (((sc->sc_x * sc->sc_x +
sc->sc_y * sc->sc_y) < 20) &&
(sc->sc_wsmousedev)) {
/*
* if there wasn't much movement between
* finger down and up again we assume
* someone tapped the pad and we just
* send a mouse button event
*/
wsmouse_input(sc->sc_wsmousedev,
1, 0, 0, 0, 0, WSMOUSE_INPUT_DELTA);
}
sc->sc_down = 0;
}
}
}
static void
ams_mangle_4(struct ams_softc *sc, int buttons)
{
if (buttons & 0x20) {
/* finger down on pad */
if (sc->sc_down == 0) {
sc->sc_down = 1;
sc->sc_x = 0;
sc->sc_y = 0;
}
}
if ((buttons & 0x20) == 0) {
/* finger up */
if (sc->sc_down) {
if (((sc->sc_x * sc->sc_x +
sc->sc_y * sc->sc_y) < 20) &&
(sc->sc_wsmousedev)) {
/*
* if there wasn't much movement between
* finger down and up again we assume
* someone tapped the pad and we just
* send a mouse button event
*/
wsmouse_input(sc->sc_wsmousedev,
1, 0, 0, 0, 0, WSMOUSE_INPUT_DELTA);
}
sc->sc_down = 0;
}
}
}
int
ams_enable(void *v)
{
return 0;
}
int
ams_ioctl(void *v, u_long cmd, void *data, int flag, struct lwp *l)
{