This is the boilerplate code to route lid_action through to aplsmc(4) which I
previously sent as part of another diff. Depending on how we are going to use
it, the aplsmc(4) part might need a bit of refinement to distinguish between
LID_OPEN/CLOSE events.
Index: arch/arm64/arm64/acpi_machdep.c
===================================================================
RCS file: /cvs/src/sys/arch/arm64/arm64/acpi_machdep.c,v
retrieving revision 1.20
diff -u -p -r1.20 acpi_machdep.c
--- arch/arm64/arm64/acpi_machdep.c 13 Sep 2022 17:14:54 -0000 1.20
+++ arch/arm64/arm64/acpi_machdep.c 25 Nov 2022 21:22:09 -0000
@@ -36,7 +36,6 @@
#include "apm.h"
-int lid_action;
int pwr_action = 1;
int acpi_fdt_match(struct device *, void *, void *);
Index: arch/arm64/arm64/machdep.c
===================================================================
RCS file: /cvs/src/sys/arch/arm64/arm64/machdep.c,v
retrieving revision 1.77
diff -u -p -r1.77 machdep.c
--- arch/arm64/arm64/machdep.c 24 Nov 2022 14:43:16 -0000 1.77
+++ arch/arm64/arm64/machdep.c 25 Nov 2022 21:22:09 -0000
@@ -71,6 +71,7 @@ void (*cpuresetfn)(void);
void (*powerdownfn)(void);
int cold = 1;
+int lid_action = 1;
struct vm_map *exec_map = NULL;
struct vm_map *phys_map = NULL;
@@ -322,6 +323,10 @@ extern uint64_t cpu_id_aa64pfr1;
* machine dependent system variables.
*/
+const struct sysctl_bounded_args cpuctl_vars[] = {
+ { CPU_LIDACTION, &lid_action, 0, 2 },
+};
+
int
cpu_sysctl(int *name, u_int namelen, void *oldp, size_t *oldlenp, void *newp,
size_t newlen, struct proc *p)
@@ -372,7 +377,8 @@ cpu_sysctl(int *name, u_int namelen, voi
case CPU_ID_AA64ZFR0:
return sysctl_rdquad(oldp, oldlenp, newp, 0);
default:
- return (EOPNOTSUPP);
+ return (sysctl_bounded_arr(cpuctl_vars, nitems(cpuctl_vars),
+ name, namelen, oldp, oldlenp, newp, newlen));
}
/* NOTREACHED */
}
Index: arch/arm64/dev/aplsmc.c
===================================================================
RCS file: /cvs/src/sys/arch/arm64/dev/aplsmc.c,v
retrieving revision 1.19
diff -u -p -r1.19 aplsmc.c
--- arch/arm64/dev/aplsmc.c 25 Nov 2022 20:33:11 -0000 1.19
+++ arch/arm64/dev/aplsmc.c 25 Nov 2022 21:22:09 -0000
@@ -37,6 +37,7 @@
#include "apm.h"
+extern int lid_action;
extern void (*simplefb_burn_hook)(u_int);
extern void (*cpuresetfn)(void);
@@ -390,6 +391,14 @@ aplsmc_handle_notification(struct aplsmc
default:
printf("%s: SMV_EV_TYPE_LID 0x%016llx\n",
sc->sc_dev.dv_xname, data);
+ break;
+ }
+ switch (lid_action) {
+ case 1:
+ /* XXX: suspend */
+ break;
+ case 2:
+ /* XXX: hibernate */
break;
}
break;
Index: arch/arm64/include/cpu.h
===================================================================
RCS file: /cvs/src/sys/arch/arm64/include/cpu.h,v
retrieving revision 1.31
diff -u -p -r1.31 cpu.h
--- arch/arm64/include/cpu.h 24 Nov 2022 14:43:16 -0000 1.31
+++ arch/arm64/include/cpu.h 25 Nov 2022 21:22:09 -0000
@@ -36,7 +36,8 @@
#define CPU_ID_AA64PFR1 9
#define CPU_ID_AA64SMFR0 10
#define CPU_ID_AA64ZFR0 11
-#define CPU_MAXID 12 /* number of valid machdep ids
*/
+#define CPU_LIDACTION 12
+#define CPU_MAXID 13 /* number of valid machdep ids
*/
#define CTL_MACHDEP_NAMES { \
{ 0, 0 }, \
