From 6a9cabc4349238c6c7fddb9828b4c5f3f8099277 Mon Sep 17 00:00:00 2001
From: Andree Buschmann <AndreeBuschmann@t-online.de>
Date: Fri, 24 Sep 2010 22:42:06 +0000
Subject: Implement lineout en-/disable for WM8975 and activate it for iPod
 nano 2G.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@28159 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/drivers/audio/wm8975.c                           | 12 ++++++++++++
 firmware/export/config/ipodnano2g.h                       |  3 +++
 firmware/export/wm8975.h                                  |  1 +
 firmware/target/arm/s5l8700/ipodnano2g/powermgmt-nano2g.c |  9 +++++++++
 4 files changed, 25 insertions(+)

diff --git a/firmware/drivers/audio/wm8975.c b/firmware/drivers/audio/wm8975.c
index dbe39d8b62..3fcb01e728 100644
--- a/firmware/drivers/audio/wm8975.c
+++ b/firmware/drivers/audio/wm8975.c
@@ -192,6 +192,18 @@ void audiohw_set_lineout_vol(int vol_l, int vol_r)
     wmcodec_write(ROUT2VOL, ROUT2VOL_RO2VU | ROUT2VOL_RO2ZC | vol_r);
 }
 
+void audiohw_enable_lineout(bool enable)
+{
+    if (enable) {
+        /* Enable lineout */
+        wm8975_regs[PWRMGMT2] |=  (PWRMGMT2_LOUT2 | PWRMGMT2_ROUT2);
+    } else {
+        /* Disable lineout */
+        wm8975_regs[PWRMGMT2] &= ~(PWRMGMT2_LOUT2 | PWRMGMT2_ROUT2);
+    }
+    wm8975_write(PWRMGMT2, wm8975_regs[PWRMGMT2]);
+}
+
 void audiohw_set_bass(int value)
 {
     const int regvalues[] = {
diff --git a/firmware/export/config/ipodnano2g.h b/firmware/export/config/ipodnano2g.h
index a4189b35f3..898871d486 100644
--- a/firmware/export/config/ipodnano2g.h
+++ b/firmware/export/config/ipodnano2g.h
@@ -219,6 +219,9 @@
 //#define IPOD_ACCESSORY_PROTOCOL
 //#define HAVE_SERIAL
 
+/* Define this, if you can switch on/off the lineout */
+#define HAVE_LINEOUT_POWEROFF
+
 #define USB_WRITE_BUFFER_SIZE (1024*64)
 
 /* Define this if a programmable hotkey is mapped */
diff --git a/firmware/export/wm8975.h b/firmware/export/wm8975.h
index 5524d2e037..8c3cf473d6 100644
--- a/firmware/export/wm8975.h
+++ b/firmware/export/wm8975.h
@@ -32,6 +32,7 @@ extern int tenthdb2master(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_enable_lineout(bool enable);
 
 /* Register addresses and bits */
 
diff --git a/firmware/target/arm/s5l8700/ipodnano2g/powermgmt-nano2g.c b/firmware/target/arm/s5l8700/ipodnano2g/powermgmt-nano2g.c
index b0578a33d5..52491cf480 100644
--- a/firmware/target/arm/s5l8700/ipodnano2g/powermgmt-nano2g.c
+++ b/firmware/target/arm/s5l8700/ipodnano2g/powermgmt-nano2g.c
@@ -23,6 +23,7 @@
 #include "powermgmt.h"
 #include "pmu-target.h"
 #include "power.h"
+#include "audiohw.h"
 
 const unsigned short battery_level_dangerous[BATTERY_TYPES_COUNT] =
 {
@@ -77,3 +78,11 @@ 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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