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authorjhb <jhb@FreeBSD.org>2001-01-13 21:28:57 +0000
committerjhb <jhb@FreeBSD.org>2001-01-13 21:28:57 +0000
commit2da785b10fc3ab93514921c99868995fcc14b753 (patch)
tree36a738c28a1f2e4dc89dcf71d24995e012943b65 /sys/dev/acpica
parent6a1d7a734cceb0a37a2f20a44022da576a9d6792 (diff)
downloadFreeBSD-src-2da785b10fc3ab93514921c99868995fcc14b753.zip
FreeBSD-src-2da785b10fc3ab93514921c99868995fcc14b753.tar.gz
Add 3 new dynamic sysctl's to control the sleep states switched to on a
power button, sleep button, or lid close event. The sysctl's use the ACPI sleep state names S0, S1, S2, S3, S4, S4B, and S5. Reviewed by: iwasaki
Diffstat (limited to 'sys/dev/acpica')
-rw-r--r--sys/dev/acpica/acpi.c50
-rw-r--r--sys/dev/acpica/acpivar.h3
2 files changed, 53 insertions, 0 deletions
diff --git a/sys/dev/acpica/acpi.c b/sys/dev/acpica/acpi.c
index 4eac94b..2e627da 100644
--- a/sys/dev/acpica/acpi.c
+++ b/sys/dev/acpica/acpi.c
@@ -84,6 +84,9 @@ static struct cdevsw acpi_cdevsw = {
-1
};
+static const char* sleep_state_names[] = {
+ "S0", "S1", "S2", "S3", "S4", "S4B", "S5" };
+
static void acpi_identify(driver_t *driver, device_t parent);
static int acpi_probe(device_t dev);
static int acpi_attach(device_t dev);
@@ -115,6 +118,7 @@ static void acpi_set_debugging(void);
static void acpi_system_eventhandler_sleep(void *arg, int state);
static void acpi_system_eventhandler_wakeup(void *arg, int state);
+static int acpi_sleep_state_sysctl(SYSCTL_HANDLER_ARGS);
static device_method_t acpi_methods[] = {
/* Device interface */
@@ -301,6 +305,25 @@ acpi_attach(device_t dev)
}
/*
+ * Setup our sysctl tree.
+ *
+ * XXX: This doesn't check to make sure that none of these fail.
+ */
+ sysctl_ctx_init(&sc->acpi_sysctl_ctx);
+ sc->acpi_sysctl_tree = SYSCTL_ADD_NODE(&sc->acpi_sysctl_ctx,
+ SYSCTL_STATIC_CHILDREN(_hw), OID_AUTO,
+ device_get_name(dev), CTLFLAG_RD, 0, "");
+ SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
+ OID_AUTO, "power_button_state", CTLTYPE_STRING | CTLFLAG_RW,
+ &sc->acpi_power_button_sx, 0, acpi_sleep_state_sysctl, "A", "");
+ SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
+ OID_AUTO, "sleep_button_state", CTLTYPE_STRING | CTLFLAG_RW,
+ &sc->acpi_sleep_button_sx, 0, acpi_sleep_state_sysctl, "A", "");
+ SYSCTL_ADD_PROC(&sc->acpi_sysctl_ctx, SYSCTL_CHILDREN(sc->acpi_sysctl_tree),
+ OID_AUTO, "lid_switch_state", CTLTYPE_STRING | CTLFLAG_RW,
+ &sc->acpi_lid_switch_sx, 0, acpi_sleep_state_sysctl, "A", "");
+
+ /*
* Dispatch the default sleep state to devices.
* TBD: should be configured from userland policy manager.
*/
@@ -1194,6 +1217,33 @@ out:
return(error);
}
+static int
+acpi_sleep_state_sysctl(SYSCTL_HANDLER_ARGS)
+{
+ char sleep_state[10];
+ int error;
+ u_int new_state, old_state;
+
+ old_state = *(u_int *)oidp->oid_arg1;
+ if (old_state > ACPI_STATE_S5)
+ strcpy(sleep_state, "unknown");
+ else
+ strncpy(sleep_state, sleep_state_names[old_state],
+ sizeof(sleep_state_names[old_state]));
+ error = sysctl_handle_string(oidp, sleep_state, sizeof(sleep_state), req);
+ if (error == 0 && req->newptr != NULL) {
+ for (new_state = ACPI_STATE_S0; new_state <= ACPI_STATE_S5; new_state++)
+ if (strncmp(sleep_state, sleep_state_names[new_state],
+ sizeof(sleep_state)) == 0)
+ break;
+ if (new_state != old_state && new_state <= ACPI_STATE_S5)
+ *(u_int *)oidp->oid_arg1 = new_state;
+ else
+ error = EINVAL;
+ }
+ return(error);
+}
+
#ifdef ACPI_DEBUG
/*
* Support for parsing debug options from the kernel environment.
diff --git a/sys/dev/acpica/acpivar.h b/sys/dev/acpica/acpivar.h
index 960d175..1b27e83 100644
--- a/sys/dev/acpica/acpivar.h
+++ b/sys/dev/acpica/acpivar.h
@@ -30,6 +30,7 @@
#include "bus_if.h"
#include <sys/eventhandler.h>
+#include <sys/sysctl.h>
extern devclass_t acpi_devclass;
@@ -44,6 +45,8 @@ struct acpi_softc {
int acpi_enabled;
int acpi_sstate;
+ struct sysctl_ctx_list acpi_sysctl_ctx;
+ struct sysctl_oid *acpi_sysctl_tree;
#define ACPI_POWER_BUTTON_DEFAULT_SX ACPI_STATE_S5;
#define ACPI_SLEEP_BUTTON_DEFAULT_SX ACPI_STATE_S1;
#define ACPI_LID_SWITCH_DEFAULT_SX ACPI_STATE_S1;
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