Add disable automatic TV ON function by HDMI-CEC

cec_disable_tv_on.patch

From 6f1e3aa7371d29a2de74b019753e4f2ee82c6bb7 Mon Sep 17 00:00:00 2001
From: Brian Kim <[email protected]>
Date: Mon, 4 Jan 2016 15:27:19 +0900
Subject: [PATCH] ODROIDC: Add disable automatic TV power on function in
 HDMI-CEC

This change can disable switch TV on automatically using HDMI-CEC. This
function support it using AUTO_POWER_ON_MASK flag in boot parameter.

Change-Id: I3257dbeb4e13b829cd1e3c7df8a9a6321060e9e3
Signed-off-by: Brian Kim <[email protected]>
---
 arch/arm/boot/dts/meson8b_odroidc.dts       |  1 -
 drivers/amlogic/hdmi/hdmi_tx/hdmi_tx_cec.c  | 13 +++++++++++++
 include/linux/amlogic/hdmi_tx/hdmi_tx_cec.h |  1 +
 3 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/meson8b_odroidc.dts b/arch/arm/boot/dts/meson8b_odroidc.dts
index 3bef0b25..e01a67c 100755
--- a/arch/arm/boot/dts/meson8b_odroidc.dts
+++ b/arch/arm/boot/dts/meson8b_odroidc.dts
@@ -608,7 +608,6 @@
             vendor_id = <0x000000>;                 /* Refer to http://standards.ieee.org/develop/regauth/oui/oui.txt   */
             product_desc = "ODROID-C1";        /* Max Chars: 16    */
             cec_osd_string = "ODROID-C1";        /* Max Chars: 14    */
-            cec_config = <0x00000f>;
             ao_cec = <0x000001>;
         };
 
diff --git a/drivers/amlogic/hdmi/hdmi_tx/hdmi_tx_cec.c b/drivers/amlogic/hdmi/hdmi_tx/hdmi_tx_cec.c
index 88fdb51..0930f4a 100755
--- a/drivers/amlogic/hdmi/hdmi_tx/hdmi_tx_cec.c
+++ b/drivers/amlogic/hdmi/hdmi_tx/hdmi_tx_cec.c
@@ -304,6 +304,18 @@ void cec_node_init(hdmitx_dev_t* hdmitx_device)
             cec_device_vendor_id((cec_rx_message_t*)0);
 
             msleep(150);
+
+	    /* Disable switch TV on automatically */
+	    if (!(hdmitx_device->cec_func_config & (1 << AUTO_POWER_ON_MASK))) {
+		cec_usrcmd_get_device_power_status(CEC_TV_ADDR);
+		wait_event_interruptible(hdmitx_device->cec_wait_rx,
+			cec_global_info.cec_rx_msg_buf.rx_read_pos != cec_global_info.cec_rx_msg_buf.rx_write_pos);
+		cec_isr_post_process();
+
+		if (cec_global_info.tv_power_status)
+		    return;
+	    }
+
             cec_imageview_on_smp();
             msleep(100);
 
@@ -1146,6 +1158,7 @@ void cec_handle_message(cec_rx_message_t* pcec_message)
         case CEC_OC_REPORT_PHYSICAL_ADDRESS:
             break;
         case CEC_OC_REPORT_POWER_STATUS:
+	    cec_global_info.tv_power_status = pcec_message->content.msg.operands[0];
             break;
         case CEC_OC_SET_OSD_NAME:
             break;
diff --git a/include/linux/amlogic/hdmi_tx/hdmi_tx_cec.h b/include/linux/amlogic/hdmi_tx/hdmi_tx_cec.h
index 51a7190..72794b6 100644
--- a/include/linux/amlogic/hdmi_tx/hdmi_tx_cec.h
+++ b/include/linux/amlogic/hdmi_tx/hdmi_tx_cec.h
@@ -441,6 +441,7 @@ typedef struct {
     cec_node_info_t cec_node_info[MAX_NUM_OF_DEV];
     cec_rx_msg_buf_t cec_rx_msg_buf;
     hdmitx_dev_t* hdmitx_device;
+    cec_power_status_e tv_power_status;
 } cec_global_info_t;
 
 typedef struct {
-- 
1.9.1