add ahci dump

1 files changed, 47 insertions, 0 deletions

diff --git a/usb-print-caps.c b/usb-print-caps.c
index fac3b99..94bfc1f 100644
--- a/usb-print-caps.c
+++ b/usb-print-caps.c
@@ -211,6 +211,47 @@ void ehcidump(char *dev)
 
 /* ------------------------------------------------------------- */
 
+void ahcidump(char *dev)
+{
+    uint32_t *map, val;
+    int ports,i;
+
+    map = mapbar(dev, 5);
+    if (!map)
+        return;
+
+    printf("  ahci caps\n");
+
+    val = map[0];
+    ports = (val >> 0) & 0x1f;
+    printf("    0x%04x: 0x%08x", 0, val);
+    printf(" - maxports: %d\n",
+           ports);
+
+    val = map[3];
+    printf("    0x%04x: 0x%08x", 3*4, val);
+    printf(" - port map:");
+    for (i = 0; i < ports+1; i++) {
+        if (val & (1 << i)) {
+            printf(" %d", i);
+        } else {
+            printf(" -");
+        }
+    }
+    printf("\n");
+
+    val = map[4];
+    printf("    0x%04x: 0x%08x", 4*4, val);
+    printf(" - ahci ver: %x.%x%x\n",
+           (val >> 16) & 0xffff,
+           (val >>  8) & 0xff,
+           (val >>  0) & 0xff);
+
+    return;
+}
+
+/* ------------------------------------------------------------- */
+
 int main(int argc, char *argv[])
 {
     unsigned long addr0;
@@ -249,6 +290,12 @@ int main(int argc, char *argv[])
             printf("  bar0 @ 0x%lx\n", addr0);
             xhcidump(entry->d_name);
             break;
+        case 0x010601:
+            printf("ahci @ %s %04x:%04x\n", entry->d_name, vendor, device);
+            if (1) {
+                ahcidump(entry->d_name);
+            }
+            break;
         }
     }
     return 0;