patch-2.4.26 linux-2.4.26/drivers/acpi/hardware/hwsleep.c

• Lines: 152
• Date: 2004-04-14 06:05:28.000000000 -0700
• Orig file: linux-2.4.25/drivers/acpi/hardware/hwsleep.c
• Orig date: 2004-02-18 05:36:31.000000000 -0800

diff -urN linux-2.4.25/drivers/acpi/hardware/hwsleep.c linux-2.4.26/drivers/acpi/hardware/hwsleep.c
@@ -48,6 +48,19 @@
 	 ACPI_MODULE_NAME    ("hwsleep")
 
 
+#define METHOD_NAME__BFS        "\\_BFS"
+#define METHOD_NAME__GTS        "\\_GTS"
+#define METHOD_NAME__PTS        "\\_PTS"
+#define METHOD_NAME__SST        "\\_SI._SST"
+#define METHOD_NAME__WAK        "\\_WAK"
+
+#define ACPI_SST_INDICATOR_OFF  0
+#define ACPI_SST_WORKING        1
+#define ACPI_SST_WAKING         2
+#define ACPI_SST_SLEEPING       3
+#define ACPI_SST_SLEEP_CONTEXT  4
+
+
 /******************************************************************************
  *
  * FUNCTION:    acpi_set_firmware_waking_vector
@@ -171,19 +184,41 @@
 
 	/* Run the _PTS and _GTS methods */
 
-	status = acpi_evaluate_object (NULL, "\\_PTS", &arg_list, NULL);
+	status = acpi_evaluate_object (NULL, METHOD_NAME__PTS, &arg_list, NULL);
 	if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) {
 		return_ACPI_STATUS (status);
 	}
 
-	status = acpi_evaluate_object (NULL, "\\_GTS", &arg_list, NULL);
+	status = acpi_evaluate_object (NULL, METHOD_NAME__GTS, &arg_list, NULL);
 	if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) {
 		return_ACPI_STATUS (status);
 	}
 
+	/* Setup the argument to _SST */
+
+	switch (sleep_state) {
+	case ACPI_STATE_S0:
+		arg.integer.value = ACPI_SST_WORKING;
+		break;
+
+	case ACPI_STATE_S1:
+	case ACPI_STATE_S2:
+	case ACPI_STATE_S3:
+		arg.integer.value = ACPI_SST_SLEEPING;
+		break;
+
+	case ACPI_STATE_S4:
+		arg.integer.value = ACPI_SST_SLEEP_CONTEXT;
+		break;
+
+	default:
+		arg.integer.value = ACPI_SST_INDICATOR_OFF; /* Default is indicator off */
+		break;
+	}
+
 	/* Set the system indicators to show the desired sleep state. */
 
-	status = acpi_evaluate_object (NULL, "\\_SI._SST", &arg_list, NULL);
+	status = acpi_evaluate_object (NULL, METHOD_NAME__SST, &arg_list, NULL);
 	if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) {
 		 ACPI_REPORT_ERROR (("Method _SST failed, %s\n", acpi_format_exception (status)));
 	}
@@ -251,7 +286,11 @@
 		}
 	}
 
-	status = acpi_hw_disable_non_wakeup_gpes ();
+	/*
+	 * 1) Disable all runtime GPEs
+	 * 2) Enable all wakeup GPEs
+	 */
+	status = acpi_hw_prepare_gpes_for_sleep ();
 	if (ACPI_FAILURE (status)) {
 		return_ACPI_STATUS (status);
 	}
@@ -380,7 +419,11 @@
 		return_ACPI_STATUS (status);
 	}
 
-	status = acpi_hw_disable_non_wakeup_gpes ();
+	/*
+	 * 1) Disable all runtime GPEs
+	 * 2) Enable all wakeup GPEs
+	 */
+	status = acpi_hw_prepare_gpes_for_sleep ();
 	if (ACPI_FAILURE (status)) {
 		return_ACPI_STATUS (status);
 	}
@@ -477,32 +520,53 @@
 
 	/* Ignore any errors from these methods */
 
-	arg.integer.value = 0;
-	status = acpi_evaluate_object (NULL, "\\_SI._SST", &arg_list, NULL);
+	arg.integer.value = ACPI_SST_WAKING;
+	status = acpi_evaluate_object (NULL, METHOD_NAME__SST, &arg_list, NULL);
 	if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) {
 		ACPI_REPORT_ERROR (("Method _SST failed, %s\n", acpi_format_exception (status)));
 	}
 
 	arg.integer.value = sleep_state;
-	status = acpi_evaluate_object (NULL, "\\_BFS", &arg_list, NULL);
+	status = acpi_evaluate_object (NULL, METHOD_NAME__BFS, &arg_list, NULL);
 	if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) {
 		ACPI_REPORT_ERROR (("Method _BFS failed, %s\n", acpi_format_exception (status)));
 	}
 
-	status = acpi_evaluate_object (NULL, "\\_WAK", &arg_list, NULL);
+	status = acpi_evaluate_object (NULL, METHOD_NAME__WAK, &arg_list, NULL);
 	if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) {
 		ACPI_REPORT_ERROR (("Method _WAK failed, %s\n", acpi_format_exception (status)));
 	}
+	/* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */
 
-	/* _WAK returns stuff - do we want to look at it? */
-
-	status = acpi_hw_enable_non_wakeup_gpes ();
+	/*
+	 * Restore the GPEs:
+	 * 1) Disable all wakeup GPEs
+	 * 2) Enable all runtime GPEs
+	 */
+	status = acpi_hw_restore_gpes_on_wake ();
 	if (ACPI_FAILURE (status)) {
 		return_ACPI_STATUS (status);
 	}
 
+	/* Enable power button */
+
+	acpi_set_register(acpi_gbl_fixed_event_info[ACPI_EVENT_POWER_BUTTON].enable_register_id,
+			1, ACPI_MTX_DO_NOT_LOCK);
+	acpi_set_register(acpi_gbl_fixed_event_info[ACPI_EVENT_POWER_BUTTON].status_register_id,
+			1, ACPI_MTX_DO_NOT_LOCK);
+
 	/* Enable BM arbitration */
 
 	status = acpi_set_register (ACPI_BITREG_ARB_DISABLE, 0, ACPI_MTX_LOCK);
+	if (ACPI_FAILURE (status)) {
+		return_ACPI_STATUS (status);
+	}
+
+	arg.integer.value = ACPI_SST_WORKING;
+	status = acpi_evaluate_object (NULL, METHOD_NAME__SST, &arg_list, NULL);
+	if (ACPI_FAILURE (status) && status != AE_NOT_FOUND) {
+		ACPI_REPORT_ERROR (("Method _SST failed, %s\n", acpi_format_exception (status)));
+	}
+
 	return_ACPI_STATUS (status);
 }