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As3525 v1/v2 Add power savings menu

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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?
This commit is contained in:
William Wilgus 2018-07-27 23:56:32 +02:00
parent 400603abdf
commit 6f0320a953
23 changed files with 537 additions and 52 deletions
Download patch file Download diff file Expand all files Collapse all files

5
firmware/export/config/sansafuzev2.h
View file

@ -224,6 +224,11 @@
/*define this to enable CPU voltage scaling on AMS devices*/
#define HAVE_ADJUSTABLE_CPU_VOLTAGE
#ifndef BOOTLOADER
/*define this with flags for power saving options device supports*/
#define CONFIG_POWER_SAVING (POWERSV_CPU | POWERSV_I2C | POWERSV_DISK)
#endif
#define BOOTFILE_EXT "sansa"
#define BOOTFILE "rockbox." BOOTFILE_EXT
#define BOOTDIR "/.rockbox"