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Add support for automated reboot after power failure on Apple Core99 machines

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(G3 laptops, all G4 machines, early G5s, G5 Xserves). The relevant sysctl
is named dev.pmu.0.server_mode for mental compatibility with Linux.
This commit is contained in:
nwhitehorn 2008-12-07 00:42:15 +00:00
parent e6bc656165
commit eff63b34b1
1 changed files with 61 additions and 3 deletions
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64
sys/powerpc/powermac/pmu.c
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@ -37,6 +37,7 @@ __FBSDID("$FreeBSD$");
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/sysctl.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/openfirm.h>
@ -65,10 +66,11 @@ static int pmu_probe(device_t);
static int pmu_attach(device_t);
static int pmu_detach(device_t);
static u_int pmu_adb_send(device_t dev, u_char command_byte, int len,
static u_int pmu_adb_send(device_t dev, u_char command_byte, int len,
u_char *data, u_char poll);
static u_int pmu_adb_autopoll(device_t dev, uint16_t mask);
static void pmu_poll(device_t dev);
static u_int pmu_adb_autopoll(device_t dev, uint16_t mask);
static void pmu_poll(device_t dev);
static int pmu_server_mode(SYSCTL_HANDLER_ARGS);
static device_method_t pmu_methods[] = {
/* Device interface */
@ -282,6 +284,8 @@ pmu_attach(device_t dev)
uint8_t cmd[2] = {2, 0};
uint8_t resp[16];
phandle_t node,child;
struct sysctl_ctx_list *ctx;
struct sysctl_oid *tree;
sc = device_get_softc(dev);
sc->sc_dev = dev;
@ -341,6 +345,17 @@ pmu_attach(device_t dev)
}
}
/*
* Set up sysctls
*/
ctx = device_get_sysctl_ctx(dev);
tree = device_get_sysctl_tree(dev);
SYSCTL_ADD_PROC(ctx, SYSCTL_CHILDREN(tree), OID_AUTO,
"server_mode", CTLTYPE_INT | CTLFLAG_RW, sc, 0,
pmu_server_mode, "I", "Enable reboot after power failure");
return (bus_generic_attach(dev));
}
@ -613,3 +628,46 @@ pmu_adb_autopoll(device_t dev, uint16_t mask)
return 0;
}
static int
pmu_server_mode(SYSCTL_HANDLER_ARGS)
{
struct pmu_softc *sc = arg1;
u_int server_mode = 0;
uint8_t getcmd[] = {PMU_PWR_GET_POWERUP_EVENTS};
uint8_t setcmd[] = {0, 0, PMU_PWR_WAKEUP_AC_INSERT};
uint8_t resp[3];
int error, len;
mtx_lock(&sc->sc_mutex);
len = pmu_send(sc, PMU_POWER_EVENTS, 1, getcmd, 3, resp);
mtx_unlock(&sc->sc_mutex);
if (len == 3)
server_mode = (resp[2] & PMU_PWR_WAKEUP_AC_INSERT) ? 1 : 0;
error = sysctl_handle_int(oidp, &server_mode, 0, req);
if (len != 3)
return (EINVAL);
if (error || !req->newptr)
return (error);
if (server_mode == 1)
setcmd[0] = PMU_PWR_SET_POWERUP_EVENTS;
else if (server_mode == 0)
setcmd[0] = PMU_PWR_CLR_POWERUP_EVENTS;
else
return (EINVAL);
setcmd[1] = resp[1];
mtx_lock(&sc->sc_mutex);
pmu_send(sc, PMU_POWER_EVENTS, 3, setcmd, 2, resp);
mtx_unlock(&sc->sc_mutex);
return (0);
}