power: introduce 8992-specific handling

Creates framework for handling special cases like
display off, video encode differently for 8992.

Change-Id: I195a96f0787c0d2dc2696c75a6f281774e2345cb

2 files changed, 153 insertions, 0 deletions

diff --git a/Android.mk b/Android.mk
index cb0511e..76c5102 100644
--- a/Android.mk
+++ b/Android.mk
@@ -40,6 +40,10 @@ ifeq ($(call is-board-platform-in-list, msm8916), true)
 LOCAL_SRC_FILES += power-8916.c
 endif
 
+ifeq ($(call is-board-platform-in-list, msm8992), true)
+LOCAL_SRC_FILES += power-8992.c
+endif
+
 ifeq ($(call is-board-platform-in-list, msm8994), true)
 LOCAL_SRC_FILES += power-8994.c
 endif
diff --git a/power-8992.c b/power-8992.c
new file mode 100644
index 0000000..6faaae6
--- /dev/null
+++ b/power-8992.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 2015, The Linux Foundation. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * *    * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ *       copyright notice, this list of conditions and the following
+ *       disclaimer in the documentation and/or other materials provided
+ *       with the distribution.
+ *     * Neither the name of The Linux Foundation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#define LOG_NIDEBUG 0
+
+#include <errno.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <dlfcn.h>
+#include <stdlib.h>
+
+#define LOG_TAG "QTI PowerHAL"
+#include <log/log.h>
+#include <hardware/hardware.h>
+#include <hardware/power.h>
+
+#include "utils.h"
+#include "metadata-defs.h"
+#include "hint-data.h"
+#include "performance.h"
+#include "power-common.h"
+
+static int display_hint_sent;
+
+static int process_video_encode_hint(void *metadata)
+{
+    char governor[80];
+    struct video_encode_metadata_t video_encode_metadata;
+
+    if (get_scaling_governor(governor, sizeof(governor)) == -1) {
+        ALOGE("Can't obtain scaling governor.");
+
+        return HINT_NONE;
+    }
+
+    /* Initialize encode metadata struct fields */
+    memset(&video_encode_metadata, 0, sizeof(struct video_encode_metadata_t));
+    video_encode_metadata.state = -1;
+    video_encode_metadata.hint_id = DEFAULT_VIDEO_ENCODE_HINT_ID;
+
+    if (metadata) {
+        if (parse_video_encode_metadata((char *)metadata, &video_encode_metadata) ==
+            -1) {
+            ALOGE("Error occurred while parsing metadata.");
+            return HINT_NONE;
+        }
+    } else {
+        return HINT_NONE;
+    }
+
+    if (video_encode_metadata.state == 1) {
+        if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) &&
+                (strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) {
+            /* sched and cpufreq params
+             * hispeed freq - 768 MHz
+             * target load - 90
+             * above_hispeed_delay - 40ms
+             * sched_small_tsk - 50
+             */
+            int resource_values[] = {0x2C07, 0x2F5A, 0x2704, 0x4032};
+
+            perform_hint_action(video_encode_metadata.hint_id,
+                    resource_values, sizeof(resource_values)/sizeof(resource_values[0]));
+            return HINT_HANDLED;
+        }
+    } else if (video_encode_metadata.state == 0) {
+        if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) &&
+                (strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) {
+            undo_hint_action(video_encode_metadata.hint_id);
+            return HINT_HANDLED;
+        }
+    }
+    return HINT_NONE;
+}
+
+int power_hint_override(struct power_module *module, power_hint_t hint, void *data)
+{
+    int ret_val = HINT_NONE;
+    switch(hint) {
+        case POWER_HINT_VIDEO_ENCODE:
+            ret_val = process_video_encode_hint(data);
+            break;
+        default:
+            break;
+    }
+    return ret_val;
+}
+
+int set_interactive_override(struct power_module *module, int on)
+{
+    return HINT_HANDLED; /* Don't excecute this code path, not in use */
+    char governor[80];
+
+    if (get_scaling_governor(governor, sizeof(governor)) == -1) {
+        ALOGE("Can't obtain scaling governor.");
+
+        return HINT_NONE;
+    }
+
+    if (!on) {
+        /* Display off */
+        if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) &&
+            (strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) {
+            int resource_values[] = {}; /* dummy node */
+            if (!display_hint_sent) {
+                perform_hint_action(DISPLAY_STATE_HINT_ID,
+                resource_values, sizeof(resource_values)/sizeof(resource_values[0]));
+                display_hint_sent = 1;
+                return HINT_HANDLED;
+            }
+        }
+    } else {
+        /* Display on */
+        if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) &&
+            (strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) {
+            undo_hint_action(DISPLAY_STATE_HINT_ID);
+            display_hint_sent = 0;
+            return HINT_HANDLED;
+        }
+    }
+    return HINT_NONE;
+}