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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

70
firmware/target/arm/as3525/system-as3525.c
View file

@ -52,6 +52,29 @@ struct mutex cpufreq_mtx;
#define default_interrupt(name) \
extern __attribute__((weak,alias("UIRQ"))) void name (void)
#ifdef CONFIG_POWER_SAVING
/* Powersave functions either manipulate the system directly
or pass enabled flag on to these specific functions
dis/enabling powersaving for the selected subsystem
*/
#if (CONFIG_POWER_SAVING & POWERSV_CPU)
/*cpu_set_powersave*/
#include "settings.h"
#endif
#if (CONFIG_POWER_SAVING & POWERSV_DISP)
/*disp_set_powersave*/
void ams_ssp_set_low_speed(bool slow); /*lcd-clip-plus.c & lcd-clipzip.c*/
#endif
#if (CONFIG_POWER_SAVING & POWERSV_DISK)
/*disk_set_powersave*/
void ams_sd_set_low_speed(bool slow); /* sd-as3525.c & sd-as3525v2.c */
#endif
#if (CONFIG_POWER_SAVING & POWERSV_I2C)
/*i2c_set_powersave*/
void ams_i2c_set_low_speed(bool slow); /* ascodec-as3525.c*/
#endif
#endif /*CONFIG_POWER_SAVING*/
#if CONFIG_USBOTG != USBOTG_DESIGNWARE
static void UIRQ (void) __attribute__((interrupt ("IRQ")));
#endif
@ -422,6 +445,39 @@ void udelay(unsigned usecs)
);
}
#ifdef CONFIG_POWER_SAVING
#if (CONFIG_POWER_SAVING & POWERSV_CPU)
void cpu_set_powersave(bool enabled)
{
/*global_settings.cpu_powersave*/
/*handled in: set_cpu_frequency()*/
(void) enabled;
}
#endif
#if (CONFIG_POWER_SAVING & POWERSV_DISK)
void disk_set_powersave(bool enabled)
{
/*global_settings.disk_powersave*/
ams_sd_set_low_speed(enabled);
}
#endif
#if (CONFIG_POWER_SAVING & POWERSV_DISP)
void disp_set_powersave(bool enabled)
{
/*global_settings.disp_powersave*/
ams_ssp_set_low_speed(enabled);
}
#endif
#if (CONFIG_POWER_SAVING & POWERSV_I2C)
void i2c_set_powersave(bool enabled)
{
/*global_settings.i2c_powersave*/
ams_i2c_set_low_speed(enabled);
}
#endif
#endif /*defined(CONFIG_POWER_SAVING)*/
#ifndef BOOTLOADER
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
bool set_cpu_frequency__lock(void)
@ -481,7 +537,12 @@ void set_cpu_frequency(long frequency)
CGU_PROC = ((0xf << 4) | (0x3 << 2) | AS3525_CLK_MAIN);
#ifdef HAVE_ADJUSTABLE_CPU_VOLTAGE
/* Decreasing frequency so reduce voltage after change */
/* Decreasing frequency so reduce voltage after change */
#if defined(CONFIG_POWER_SAVING) && (CONFIG_POWER_SAVING & POWERSV_CPU)
if (!global_settings.cpu_powersave)
ascodec_write(AS3514_CVDD_DCDC3, (AS314_CP_DCDC3_SETTING | CVDD_1_15));
else
#endif
ascodec_write(AS3514_CVDD_DCDC3, (AS314_CP_DCDC3_SETTING | CVDD_1_10));
#endif /* HAVE_ADJUSTABLE_CPU_VOLTAGE */
@ -519,6 +580,13 @@ void set_cpu_frequency(long frequency)
/* Set CVDD1 power supply */
#ifdef HAVE_ADJUSTABLE_CPU_VOLTAGE
#if defined(CONFIG_POWER_SAVING) && (CONFIG_POWER_SAVING & POWERSV_CPU)
if (!global_settings.cpu_powersave)
{
ascodec_write_pmu(0x17, 1, 0x80 | 26);
return;
}
#endif
#if defined(SANSA_CLIPZIP)
ascodec_write_pmu(0x17, 1, 0x80 | 20);
#elif defined(SANSA_CLIPPLUS)