Changeset 162 for trunk/src/os2ahci/apm.c

Timestamp:

Jun 2, 2013, 5:10:06 AM (12 years ago)

Author:

David Azarewicz

Message:

driver info updates, misc cleanup, add comments
This is version 1.28

File:

• trunk/src/os2ahci/apm.c (modified) (4 diffs)

trunk/src/os2ahci/apm.c

@@ -133 +133 @@
     writel(ai->mmio + HOST_CTL, readl(ai->mmio + HOST_CTL) & ~HOST_IRQ_EN);
     readl(ai->mmio + HOST_CTL); /* flush */
+
+    /* TODO: put the device into the D3 state */
   }
 
@@ -138 +140 @@
   init_complete = 0;
 
-  /* TODO: put the device into the D3 state */
-
   suspended = 1;
   dprintf("suspend() finished\n");
@@ -155 +155 @@
   dprintf("resume()\n");
 
-  /* TODO: put the device into the D0 state */
-
-  for (a = 0; a < ad_info_cnt; a++) {
-    AD_INFO *ai = ad_infos + a;
+  for (a = 0; a < ad_info_cnt; a++) {
+    AD_INFO *ai = ad_infos + a;
+
+    /* TODO: put the device into the D0 state */
 
     //ahci_reset_controller(ai);
@@ -181 +181 @@
 
   /* restart engine to resume IORB processing */
+  /* The resume_sleep_flag and probably rearming the ctx hook is a temporary hack
+   * to make resume kind of work when I/O operations are outstanding or started
+   * during the suspend operation. This behavior may change with future versions
+   * of the ACPI software which will make this hack unnecessary.
+   */
   resume_sleep_flag = 5000;
   DevHelp_ArmCtxHook(0, engine_ctxhook_h);