Put BSS clearing in firstrun

[netwatch.git] / ich2 / smi.c

diff --git a/ich2/smi.c b/ich2/smi.c
index 08fcc64d4263d38713a37db79675d9d4ad2b7e4d..adba74f4b285c2ef046761d9896d4d3eabbad714 100644 (file)
--- a/ich2/smi.c
+++ b/ich2/smi.c
@@ -2,11 +2,18 @@
 #include <pci.h>
 #include <io.h>
 #include <stdint.h>
+#include <vga-overlay.h>
 #include <reg-82801b.h>
+#include <output.h>
 
-uint16_t _get_PMBASE()
+static uint16_t _get_PMBASE()
 {
-       return pci_read32(ICH2_LPC_BUS, ICH2_LPC_DEV, ICH2_LPC_FN, ICH2_LPC_PCI_PMBASE) & ICH2_PMBASE_MASK;
+       static long pmbase = -1;
+       
+       if (pmbase == -1)       /* Memoize it so that we don't have to hit PCI so often. */
+               pmbase = pci_read32(ICH2_LPC_BUS, ICH2_LPC_DEV, ICH2_LPC_FN, ICH2_LPC_PCI_PMBASE) & ICH2_PMBASE_MASK;
+       
+       return pmbase;
 }
 
 void smi_disable()
@@ -27,3 +34,134 @@ unsigned long smi_status()
        return inl(smi_sts);
 }
 
+void smi_poll()
+{
+       unsigned long sts = smi_status();
+       
+       if (sts & ICH2_SMI_STS_BIOS_STS)
+       {
+               output("Unhandled: BIOS_STS");
+               outl(_get_PMBASE() + ICH2_PMBASE_SMI_STS, ICH2_SMI_STS_BIOS_STS);
+       }
+       
+       if (sts & ICH2_SMI_STS_LEGACY_USB_STS)
+       {
+               output("Unhandled: LEGACY_USB_STS");
+               outl(_get_PMBASE() + ICH2_PMBASE_SMI_STS, ICH2_SMI_STS_LEGACY_USB_STS);
+       }
+       
+       if (sts & ICH2_SMI_STS_SLP_SMI_STS)
+       {
+               output("Unhandled: SLP_SMI_STS");
+               outl(_get_PMBASE() + ICH2_PMBASE_SMI_STS, ICH2_SMI_STS_SLP_SMI_STS);
+       }
+       
+       if (sts & ICH2_SMI_STS_APM_STS)
+       {
+               output("Unhandled: APM_STS");
+               outl(_get_PMBASE() + ICH2_PMBASE_SMI_STS, ICH2_SMI_STS_APM_STS);
+       }
+       
+       if (sts & ICH2_SMI_STS_SWSMI_TMR_STS)   // Ack it, then request another.
+       {
+               outl(_get_PMBASE() + ICH2_PMBASE_SMI_STS, ICH2_SMI_STS_SWSMI_TMR_STS);
+               outl(_get_PMBASE() + ICH2_PMBASE_SMI_EN,
+                       inl(_get_PMBASE() + ICH2_PMBASE_SMI_EN) & ~ICH2_SMI_EN_SWSMI_TMR_EN);
+               outl(_get_PMBASE() + ICH2_PMBASE_SMI_EN,
+                       inl(_get_PMBASE() + ICH2_PMBASE_SMI_EN) | ICH2_SMI_EN_SWSMI_TMR_EN);
+       }
+       
+       if (sts & ICH2_SMI_STS_PM1_STS_REG)
+       {
+               unsigned short pm1_sts = inw(_get_PMBASE() + ICH2_PMBASE_PM1_STS);
+               unsigned short pm1_en = inw(_get_PMBASE() + ICH2_PMBASE_PM1_EN);
+               
+               pm1_sts &= pm1_en;
+               if (pm1_sts & ICH2_PM1_STS_RTC_STS)
+               {
+                       output("Unhandled: PM1_STS: RTC_STS");
+                       outw(_get_PMBASE() + ICH2_PMBASE_PM1_STS, ICH2_PM1_STS_RTC_STS);
+               }
+               
+               if (pm1_sts & ICH2_PM1_STS_PWRBTN_STS)
+               {
+                       output("Unhandled: PM1_STS: PWRBTN_STS");
+                       outw(_get_PMBASE() + ICH2_PMBASE_PM1_STS, ICH2_PM1_STS_PWRBTN_STS);
+               }
+               
+               if (pm1_sts & ICH2_PM1_STS_GBL_STS)
+               {
+                       output("Unhandled: PM1_STS: GBL_STS");
+                       outw(_get_PMBASE() + ICH2_PMBASE_PM1_STS, ICH2_PM1_STS_GBL_STS);
+               }
+               
+               if (pm1_sts & ICH2_PM1_STS_TMROF_STS)
+               {
+                       output("Unhandled: PM1_STS: TMROF_STS");
+                       outw(_get_PMBASE() + ICH2_PMBASE_PM1_STS, ICH2_PM1_STS_TMROF_STS);
+               }
+               
+               outl(_get_PMBASE() + ICH2_PMBASE_SMI_STS, ICH2_SMI_STS_PM1_STS_REG);
+       }
+       
+       if (sts & ICH2_SMI_STS_GPE0_STS)
+       {
+               /* XXX -- trawl through GPE0_STS to see what happened */
+               output("XXX Unhandled: GPE0_STS (expect lockup)");
+       }
+       
+       if (sts & ICH2_SMI_STS_GPE1_STS)
+       {
+               /* XXX -- trawl through GPE1_STS to see what happened */
+               output("XXX Unhandled: GPE1_STS (expect lockup)");
+       }
+       
+       if (sts & ICH2_SMI_STS_MCSMI_STS)
+       {
+               output("Unhandled: MCSMI_STS");
+               outl(_get_PMBASE() + ICH2_PMBASE_SMI_STS, ICH2_SMI_STS_MCSMI_STS);
+       }
+       
+       if (sts & ICH2_SMI_STS_DEVMON_STS)
+       {
+               unsigned short mon_smi = inw(_get_PMBASE() + ICH2_PMBASE_MON_SMI);
+               unsigned long devact_sts = inl(_get_PMBASE() + ICH2_PMBASE_DEVACT_STS);
+               unsigned long devtrap_en = inl(_get_PMBASE() + ICH2_PMBASE_DEVTRAP_EN);
+               if (((mon_smi & 0x0F00) >> 8) & ((mon_smi & 0xF000) >> 12))
+                       outputf("Unhandled: MON_SMI (%04x)", mon_smi);
+               if (devact_sts & devtrap_en)
+                       outputf("Unhandled: DEVTRAP (%08x)", devact_sts & devtrap_en);
+       }
+       
+       if (sts & ICH2_SMI_STS_TCO_STS)
+       {
+               output("Unhandled: TCO_STS");
+               outl(_get_PMBASE() + ICH2_PMBASE_SMI_STS, ICH2_SMI_STS_TCO_STS);
+       }
+       
+       if (sts & ICH2_SMI_STS_PERIODIC_STS)
+       {
+               output("Unhandled: PERIODIC_STS");
+               outl(_get_PMBASE() + ICH2_PMBASE_SMI_STS, ICH2_SMI_STS_PERIODIC_STS);
+       }
+       
+       if (sts & ICH2_SMI_STS_SERIRQ_SMI_STS)
+       {
+               output("Unhandled: SERIRQ_SMI_STS");
+               outl(_get_PMBASE() + ICH2_PMBASE_SMI_STS, ICH2_SMI_STS_SERIRQ_SMI_STS);
+       }
+       
+       if (sts & ICH2_SMI_STS_SMBUS_SMI_STS)
+       {
+               output("Unhandled: SMBUS_SMI_STS");
+               outl(_get_PMBASE() + ICH2_PMBASE_SMI_STS, ICH2_SMI_STS_SMBUS_SMI_STS);
+       }
+       
+       if (smi_status() & ~ICH2_SMI_STS_PM1_STS_REG)   /* Either the chipset is buggy, or we are. */
+               outputf("WARN: couldn't clear SMI_STS! (%08x)", smi_status());
+       
+       outl(_get_PMBASE() + ICH2_PMBASE_SMI_EN,
+               inl(_get_PMBASE() + ICH2_PMBASE_SMI_EN) |
+                       ICH2_SMI_EN_EOS |
+                       ICH2_SMI_EN_GBL_SMI_EN);
+}