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add a sysctl to optionally ender ddb when pressing the power button

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This commit is contained in:
macallan 2015-07-27 19:27:04 +00:00
parent 6ab712103f
commit 3940e348fc
1 changed files with 51 additions and 5 deletions
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50
sys/dev/adb/adb_kbd.c
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@ -1,4 +1,4 @@
/* $NetBSD: adb_kbd.c,v 1.24 2014/11/08 17:21:51 macallan Exp $ */
/* $NetBSD: adb_kbd.c,v 1.25 2015/07/27 19:27:04 macallan Exp $ */
/*
* Copyright (C) 1998 Colin Wood
@ -32,7 +32,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: adb_kbd.c,v 1.24 2014/11/08 17:21:51 macallan Exp $");
__KERNEL_RCSID(0, "$NetBSD: adb_kbd.c,v 1.25 2015/07/27 19:27:04 macallan Exp $");
#include <sys/param.h>
#include <sys/device.h>
@ -88,6 +88,7 @@ struct adbkbd_softc {
int sc_rawkbd;
#endif
bool sc_emul_usb;
bool sc_power_dbg;
uint32_t sc_power;
uint8_t sc_buffer[16];
@ -231,6 +232,7 @@ adbkbd_attach(device_t parent, device_t self, void *aux)
sc->sc_power = 0xffff;
sc->sc_timestamp = 0;
sc->sc_emul_usb = FALSE;
sc->sc_power_dbg = FALSE;
aprint_normal(" addr %d: ", sc->sc_adbdev->current_addr);
@ -354,6 +356,14 @@ adbkbd_attach(device_t parent, device_t self, void *aux)
aprint_verbose_dev(sc->sc_dev, "extended protocol enabled\n");
}
#ifdef ADBKBD_DEBUG
cmd = ADBTALK(sc->sc_adbdev->current_addr, 1);
sc->sc_msg_len = 0;
sc->sc_ops->send(sc->sc_ops->cookie, sc->sc_poll, cmd, 0, NULL);
adbkbd_wait(sc, 10);
printf("buffer: %02x %02x\n", sc->sc_buffer[0], sc->sc_buffer[1]);
#endif
if (adbkbd_is_console && (adbkbd_console_attached == 0)) {
wskbd_cnattach(&adbkbd_consops, sc, &adbkbd_keymapdata);
adbkbd_console_attached = 1;
@ -469,9 +479,13 @@ adbkbd_powerbutton(void *cookie)
{
struct adbkbd_softc *sc = cookie;
if (sc->sc_power_dbg) {
Debugger();
} else {
sysmon_pswitch_event(&sc->sc_sm_pbutton,
ADBK_PRESS(sc->sc_pe) ? PSWITCH_EVENT_PRESSED :
PSWITCH_EVENT_RELEASED);
}
}
static inline void
@ -800,6 +814,32 @@ adbkbd_sysctl_usb(SYSCTLFN_ARGS)
}
}
static int
adbkbd_sysctl_dbg(SYSCTLFN_ARGS)
{
struct sysctlnode node = *rnode;
struct adbkbd_softc *sc=(struct adbkbd_softc *)node.sysctl_data;
const int *np = newp;
bool reg;
DPRINTF("%s\n", __func__);
reg = sc->sc_power_dbg;
if (np) {
/* we're asked to write */
node.sysctl_data = &reg;
if (sysctl_lookup(SYSCTLFN_CALL(&node)) == 0) {
sc->sc_power_dbg = *(bool *)node.sysctl_data;
return 0;
}
return EINVAL;
} else {
node.sysctl_data = &reg;
node.sysctl_size = sizeof(reg);
return (sysctl_lookup(SYSCTLFN_CALL(&node)));
}
}
static void
adbkbd_setup_sysctl(struct adbkbd_softc *sc)
{
@ -818,6 +858,12 @@ adbkbd_setup_sysctl(struct adbkbd_softc *sc)
CTLTYPE_BOOL, "emulate_usb", "USB keyboard emulation",
adbkbd_sysctl_usb, 1, (void *)sc, 0, CTL_MACHDEP,
me->sysctl_num, CTL_CREATE, CTL_EOL);
ret = sysctl_createv(NULL, 0, NULL,
(void *)&node,
CTLFLAG_READWRITE | CTLFLAG_OWNDESC,
CTLTYPE_BOOL, "power_ddb", "power button triggers ddb",
adbkbd_sysctl_dbg, 1, (void *)sc, 0, CTL_MACHDEP,
me->sysctl_num, CTL_CREATE, CTL_EOL);
#if NWSMOUSE > 0
if (sc->sc_wsmousedev != NULL) {
ret = sysctl_createv(NULL, 0, NULL,