ddk: fix strcpy

devman: scan pci root bus git-svn-id: svn://kolibrios.org@1627 a494cfbc-eb01-0410-851d-a64ba20cac60
2010-09-26 22:57:18 +00:00
parent 8c44a1652a
commit 49cb0f914d
36 changed files with 2493 additions and 1367 deletions
--- a/drivers/devman/pci_irq.c
+++ b/drivers/devman/pci_irq.c
@@ -0,0 +1,131 @@
+
+#include <ddk.h>
+#include <linux/errno.h>
+#include <mutex.h>
+#include <linux/spinlock.h>
+#include <pci.h>
+#include <syscall.h>
+
+#include "acpi.h"
+#include "acpi_bus.h"
+
+#define PREFIX "ACPI: "
+
+struct acpi_prt_entry
+{
+    struct list_head    list;
+    ACPI_PCI_ID         id;
+    u8                  pin;
+    ACPI_HANDLE         link;
+    u32                 index;      /* GSI, or link _CRS index */
+};
+
+static LIST_HEAD(acpi_prt_list);
+static DEFINE_SPINLOCK(acpi_prt_lock);
+
+static inline char pin_name(int pin)
+{
+    return 'A' + pin - 1;
+}
+
+
+static int acpi_pci_irq_add_entry(ACPI_HANDLE handle, struct pci_bus *bus,
+                  struct acpi_pci_routing_table *prt)
+{
+    struct acpi_prt_entry *entry;
+
+    entry = kzalloc(sizeof(struct acpi_prt_entry), GFP_KERNEL);
+    if (!entry)
+        return -ENOMEM;
+
+    /*
+     * Note that the _PRT uses 0=INTA, 1=INTB, etc, while PCI uses
+     * 1=INTA, 2=INTB.  We use the PCI encoding throughout, so convert
+     * it here.
+     */
+    entry->id.Segment = pci_domain_nr(bus);
+    entry->id.Bus = bus->number;
+    entry->id.Device = (prt->Address >> 16) & 0xFFFF;
+    entry->pin = prt->Pin + 1;
+
+//    do_prt_fixups(entry, prt);
+
+    entry->index = prt->SourceIndex;
+
+    /*
+     * Type 1: Dynamic
+     * ---------------
+     * The 'source' field specifies the PCI interrupt link device used to
+     * configure the IRQ assigned to this slot|dev|pin.  The 'source_index'
+     * indicates which resource descriptor in the resource template (of
+     * the link device) this interrupt is allocated from.
+     *
+     * NOTE: Don't query the Link Device for IRQ information at this time
+     *       because Link Device enumeration may not have occurred yet
+     *       (e.g. exists somewhere 'below' this _PRT entry in the ACPI
+     *       namespace).
+     */
+    if (prt->Source[0])
+        AcpiGetHandle(handle, prt->Source, &entry->link);
+
+    /*
+     * Type 2: Static
+     * --------------
+     * The 'source' field is NULL, and the 'source_index' field specifies
+     * the IRQ value, which is hardwired to specific interrupt inputs on
+     * the interrupt controller.
+     */
+
+    dbgprintf(PREFIX "      %04x:%02x:%02x[%c] -> %s[%d]\n",
+                  entry->id.Segment, entry->id.Bus,
+                  entry->id.Device, pin_name(entry->pin),
+                  prt->Source, entry->index);
+
+    spin_lock(&acpi_prt_lock);
+    list_add_tail(&entry->list, &acpi_prt_list);
+    spin_unlock(&acpi_prt_lock);
+
+    return 0;
+}
+
+
+
+int acpi_pci_irq_add_prt(ACPI_HANDLE handle, struct pci_bus *bus)
+{
+    ACPI_STATUS status;
+    struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+    struct acpi_pci_routing_table *entry;
+
+    /* 'handle' is the _PRT's parent (root bridge or PCI-PCI bridge) */
+    status = AcpiGetName(handle, ACPI_FULL_PATHNAME, &buffer);
+    if (ACPI_FAILURE(status))
+        return -ENODEV;
+
+    printk(KERN_DEBUG "ACPI: PCI Interrupt Routing Table [%s._PRT]\n",
+           (char *) buffer.Pointer);
+
+    kfree(buffer.Pointer);
+
+    buffer.Length = ACPI_ALLOCATE_BUFFER;
+    buffer.Pointer = NULL;
+
+    status = AcpiGetIrqRoutingTable(handle, &buffer);
+    if (ACPI_FAILURE(status))
+    {
+        dbgprintf("AcpiGetIrqRoutingTable failed "
+                  "evaluating _PRT [%s]\n",AcpiFormatException(status));
+        kfree(buffer.Pointer);
+        return -ENODEV;
+    }
+
+    entry = buffer.Pointer;
+    while (entry && (entry->Length > 0)) {
+        acpi_pci_irq_add_entry(handle, bus, entry);
+        entry = (struct acpi_pci_routing_table *)
+            ((unsigned long)entry + entry->Length);
+    }
+
+    kfree(buffer.Pointer);
+    return 0;
+}
+