From b6c12a129e22dadff4be67e5b0fe8993c888d6d8 Mon Sep 17 00:00:00 2001
From: Andree Buschmann <AndreeBuschmann@t-online.de>
Date: Sat, 20 Mar 2010 15:02:29 +0000
Subject: Submit FS#11065. Introduce a new system setting for en-/disabling the
 Line-out. For now only implemented on iPod Video. This allows to save power
 if the user does not use the player's Line-out. On iPod 5G the saving is ~0.5
 mA.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25257 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/drivers/audio/wm8758.c               | 17 +++++++++++++++++
 firmware/export/config/ipodvideo.h            |  3 +++
 firmware/export/powermgmt.h                   |  3 +++
 firmware/export/wm8758.h                      |  1 +
 firmware/target/arm/ipod/powermgmt-ipod-pcf.c |  9 +++++++++
 5 files changed, 33 insertions(+)

(limited to 'firmware')

diff --git a/firmware/drivers/audio/wm8758.c b/firmware/drivers/audio/wm8758.c
index 715c921e33..40ead0cdf2 100644
--- a/firmware/drivers/audio/wm8758.c
+++ b/firmware/drivers/audio/wm8758.c
@@ -181,6 +181,23 @@ void audiohw_set_lineout_vol(int vol_l, int vol_r)
     wmcodec_write(ROUT2VOL, amp_r | ROUT2VOL_ROUT2ZC | ROUT2VOL_OUT2VU);
 }
 
+void audiohw_enable_lineout(bool enable)
+{
+    if (enable)
+    {
+        /* include enabling of OUT2 */
+        wmcodec_write(PWRMGMT3, PWRMGMT3_LOUT2EN | PWRMGMT3_ROUT2EN
+                              | PWRMGMT3_RMIXEN | PWRMGMT3_LMIXEN
+                              | PWRMGMT3_DACENR | PWRMGMT3_DACENL);
+    }
+    else
+    {
+        /* exclude enabling of OUT2 */
+        wmcodec_write(PWRMGMT3, PWRMGMT3_RMIXEN | PWRMGMT3_LMIXEN
+                              | PWRMGMT3_DACENR | PWRMGMT3_DACENL);
+    }
+}
+
 void audiohw_set_bass(int value)
 {
     eq1_reg = (eq1_reg & ~EQ_GAIN_MASK) | EQ_GAIN_VALUE(value);
diff --git a/firmware/export/config/ipodvideo.h b/firmware/export/config/ipodvideo.h
index a8d2220b8c..eec513320a 100644
--- a/firmware/export/config/ipodvideo.h
+++ b/firmware/export/config/ipodvideo.h
@@ -77,6 +77,9 @@
 /* Define this if you can switch on/off the accessory power supply */
 #define HAVE_ACCESSORY_SUPPLY
 
+/* Define this, if you can switch on/off the lineout */
+#define HAVE_LINEOUT_POWEROFF
+
 /* Define this if you have a software controlled poweroff */
 #define HAVE_SW_POWEROFF
 
diff --git a/firmware/export/powermgmt.h b/firmware/export/powermgmt.h
index 17519c5bfd..d86118cd9b 100644
--- a/firmware/export/powermgmt.h
+++ b/firmware/export/powermgmt.h
@@ -174,5 +174,8 @@ bool query_force_shutdown(void);
 #ifdef HAVE_ACCESSORY_SUPPLY
 void accessory_supply_set(bool);
 #endif
+#ifdef HAVE_LINEOUT_POWEROFF
+void lineout_set(bool);
+#endif
 
 #endif /* _POWERMGMT_H_ */
diff --git a/firmware/export/wm8758.h b/firmware/export/wm8758.h
index 9d1a938162..50cbc74e9a 100644
--- a/firmware/export/wm8758.h
+++ b/firmware/export/wm8758.h
@@ -34,6 +34,7 @@ extern int tenthdb2mixer(int db);
 extern void audiohw_set_master_vol(int vol_l, int vol_r);
 extern void audiohw_set_lineout_vol(int vol_l, int vol_r);
 extern void audiohw_set_mixer_vol(int channel1, int channel2);
+extern void audiohw_enable_lineout(bool enable);
 
 #define RESET                   0x00
 #define RESET_RESET             0x0
diff --git a/firmware/target/arm/ipod/powermgmt-ipod-pcf.c b/firmware/target/arm/ipod/powermgmt-ipod-pcf.c
index 5b8f974fda..95f5380b92 100644
--- a/firmware/target/arm/ipod/powermgmt-ipod-pcf.c
+++ b/firmware/target/arm/ipod/powermgmt-ipod-pcf.c
@@ -25,6 +25,7 @@
 #include "powermgmt.h"
 #include "pcf5060x.h"
 #include "pcf50605.h"
+#include "audiohw.h"
 
 const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
 {
@@ -129,3 +130,11 @@ void accessory_supply_set(bool enable)
 
 }
 #endif
+
+#ifdef HAVE_LINEOUT_POWEROFF
+void lineout_set(bool enable)
+{
+    /* Call audio hardware driver implementation */
+    audiohw_enable_lineout(enable);
+}
+#endif
-- 
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