As3525 v1/v2 Add power savings menu

Allow user to select cpu undervolt

There have been quite a few issues across the SANSA AMS line related
to CPU undervolting while most players show greatly increased runtime
some crash.
Rather than constanly upping the voltage we now have a
setting with a safe value for all players and the option for lower voltages

I plan to add a few other options here later such as disk
timings and maybe some other clocks/experimental settings

Added: Disk Low speed option for AS3525v2 devices cuts
	frequency to 12 MHz from 24 MHz
Added: Disk Low speed option for AS3525v1 devices cuts
        frequency to 15.5 MHz from 31 MHz

Added: I2c Low Speed AS3525 devices, should be bigger improvement for v1 devices

Fixed: Debug menu for AS3525v2 No SDSLOT frequency,
	Showed IDE freq though it is unused

Added: DBOP and SSP underclocking affects display on v1/v2 respectively

Fixed: debug menu now has SSP frequency, and SSP_CPSR

Update: made settings menu more generic

Update: cleaned up code

Added: Clip v1 & Fuze v1 didn't have HAVE_ADJUSTABLE_CPU_VOLTAGE.
	not sure why but,  waiting on testing to confirm

Added: C200v2 and E200v2 devices and HAVE_ADJUSTABLE_CPU_VOLTAGE.

Fixed: v1 devices don't like display timing set lower (dbop)
       v1 devices don't have a divider set for ssp (causes divide by 0)

Fixed: ClipZip display lags with Max SSP divider changed from 0xFE to 0x32

Fixed: v1 devices didn't work properly with highspeed sd cards
	Added code from http://gerrit.rockbox.org/r/#/c/1704/
	Added powersave and IDE interface enable/disable

Added: V2 devices now have powersave enabled on sd interface

Update: cleaned up code, lang defines, added manual entries

Update ssp clock mechanism added calculated ssp divider to clipzip

Update turn display clock off when clip+ turns off display

Fixed: clipzip wrong register for SSP clock

Change-Id: I04137682243be92f0f8d8bf1cfa54fbb1965559b
TODO: add other players?

1 files changed, 35 insertions, 0 deletions

diff --git a/apps/menus/settings_menu.c b/apps/menus/settings_menu.c
index 5c99cb4cd4..f23f01d4dc 100644
--- a/apps/menus/settings_menu.c
+++ b/apps/menus/settings_menu.c
@@ -295,6 +295,36 @@ MAKE_MENU(disk_menu, ID2P(LANG_DISK_MENU), 0, Icon_NOICON,
          );
 #endif
 
+#ifdef CONFIG_POWER_SAVING
+#if (CONFIG_POWER_SAVING & POWERSV_CPU)
+MENUITEM_SETTING(cpu_powersave, &global_settings.cpu_powersave, NULL);
+#endif
+#if (CONFIG_POWER_SAVING & POWERSV_DISK)
+MENUITEM_SETTING(disk_powersave, &global_settings.disk_powersave, NULL);
+#endif
+#if (CONFIG_POWER_SAVING & POWERSV_I2C)
+MENUITEM_SETTING(i2c_powersave, &global_settings.i2c_powersave, NULL);
+#endif
+#if (CONFIG_POWER_SAVING & POWERSV_DISP)
+MENUITEM_SETTING(disp_powersave, &global_settings.disp_powersave, NULL);
+#endif
+
+MAKE_MENU(power_save_menu, ID2P(LANG_POWER_SAVING_MENU), 0, Icon_NOICON,
+#if (CONFIG_POWER_SAVING & POWERSV_CPU)
+        &cpu_powersave,
+#endif
+#if (CONFIG_POWER_SAVING & POWERSV_DISK)
+        &disk_powersave,
+#endif
+#if (CONFIG_POWER_SAVING & POWERSV_I2C)
+        &i2c_powersave,
+#endif
+#if (CONFIG_POWER_SAVING & POWERSV_DISP)
+        &disp_powersave,
+#endif
+         );
+#endif /* ifdef CONFIG_POWER_SAVING */
+
 /* Limits menu */
 MENUITEM_SETTING(max_files_in_dir, &global_settings.max_files_in_dir, NULL);
 MENUITEM_SETTING(max_files_in_playlist, &global_settings.max_files_in_playlist, NULL);
@@ -412,6 +442,11 @@ MAKE_MENU(system_menu, ID2P(LANG_SYSTEM),
             &disk_menu,
 #endif
             &limits_menu,
+
+#if defined(CONFIG_POWER_SAVING)
+            &power_save_menu,
+#endif
+
 #ifdef HAVE_QUICKSCREEN
             &shortcuts_replaces_quickscreen,
 #endif