svn commit: r222239 - head/sys/powerpc/ps3

[Nathan Whitehorn]

Author: nwhitehorn
Date: Tue May 24 02:19:45 2011
New Revision: 222239
URL: http://svn.freebsd.org/changeset/base/222239

Log:
  Add RTC support for the LV1 clock on the PS3. The hypervisor won't let us
  set it, but it's better than nothing.

Modified:
  head/sys/powerpc/ps3/ps3bus.c

Modified: head/sys/powerpc/ps3/ps3bus.c
==============================================================================
--- head/sys/powerpc/ps3/ps3bus.c       Tue May 24 01:08:53 2011        
(r222238)
+++ head/sys/powerpc/ps3/ps3bus.c       Tue May 24 02:19:45 2011        
(r222239)
@@ -31,6 +31,7 @@
 #include <sys/module.h>
 #include <sys/malloc.h>
 #include <sys/bus.h>
+#include <sys/clock.h>
 #include <sys/cpu.h>
 #include <sys/resource.h>
 #include <sys/rman.h>
@@ -46,6 +47,7 @@
 #include "ps3bus.h"
 #include "ps3-hvcall.h"
 #include "iommu_if.h"
+#include "clock_if.h"
 
 static void    ps3bus_identify(driver_t *, device_t);
 static int     ps3bus_probe(device_t);
@@ -63,6 +65,8 @@ static int    ps3_iommu_map(device_t dev, b
                    bus_size_t boundary, void *cookie);
 static int     ps3_iommu_unmap(device_t dev, bus_dma_segment_t *segs,
                    int nsegs, void *cookie);
+static int     ps3_gettime(device_t dev, struct timespec *ts);
+static int     ps3_settime(device_t dev, struct timespec *ts);
 
 struct ps3bus_devinfo {
        int bus;
@@ -106,6 +110,10 @@ static device_method_t ps3bus_methods[] 
        DEVMETHOD(iommu_map,            ps3_iommu_map),
        DEVMETHOD(iommu_unmap,          ps3_iommu_unmap),
 
+       /* Clock interface */
+       DEVMETHOD(clock_gettime,        ps3_gettime),
+       DEVMETHOD(clock_settime,        ps3_settime),
+
        { 0, 0 }
 };
 
@@ -312,6 +320,8 @@ ps3bus_attach(device_t self) 
                        device_set_ivars(cdev, dinfo);
                }
        }
+       
+       clock_register(self, 1000);
 
        return (bus_generic_attach(self));
 }
@@ -551,7 +561,6 @@ ps3_iommu_map(device_t dev, bus_dma_segm
        return (0);
 }
 
-
 static int
 ps3_iommu_unmap(device_t dev, bus_dma_segment_t *segs, int nsegs, void *cookie)
 {
@@ -559,3 +568,26 @@ ps3_iommu_unmap(device_t dev, bus_dma_se
        return (0);
 }
 
+#define Y2K 946684800
+
+static int
+ps3_gettime(device_t dev, struct timespec *ts)
+{
+       uint64_t rtc, tb;
+       int result;
+
+       result = lv1_get_rtc(&rtc, &tb);
+       if (result)
+               return (result);
+
+       ts->tv_sec = rtc + Y2K;
+       ts->tv_nsec = 0;
+       return (0);
+}
+       
+static int
+ps3_settime(device_t dev, struct timespec *ts)
+{
+       return (-1);
+}
+
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