6879dec6ec
Some people reported strange charging times and
strange battery life.
Charging by OF: 25 hours; RB: 18 hours
It has been found that there are at least two issues here:
1) the way of getting battery charging status wasn't
really accurate. This attempts to fix that issue.
This patch also simplifies some code (opening a
device is no more needed, for example).
To technically explain, battery charging implies first a constant
current mode (where the voltage increases) and then a constant
voltage mode (where, obviously, the voltage reads more or less
the same). The old way the End Of Charge was detected was based solely
on the voltage, while now it is based on chip's EOC interrupt,
which should be more accurate.
2) OF explicitly sets a constant current 350 mA, while we usually had
55 mA (by as3543 default).
This wasn't discovered before since there is a caching problem
("an accurate guess") in the Samsung power mgmt Linux module,
thus its debugging dumper wasn't really working, reporting a 55 mA current.
Strangely this option should have been set by the bootloader
but apparently it does not.
Some testing is still needed, but I confirm that with this patch
I could run a benchmark for 25 hours (vs. 18 hours), by charging
within Rockbox of course.
Change-Id: I3bd921e86b9018d1cc3c720d15cc46896e8490b3
170 lines
5.2 KiB
C
170 lines
5.2 KiB
C
/*
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* This config file is for the RockBox as application on the Samsung YP-R0 player.
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* The target name for ifdefs is: SAMSUNG_YPR0; or CONFIG_PLATFORM & PLAFTORM_YPR0
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*/
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/* We don't run on hardware directly */
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/* YP-R0 need it too of course */
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#ifndef SIMULATOR
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#define CONFIG_PLATFORM (PLATFORM_HOSTED)
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#endif
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/* For Rolo and boot loader */
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#define MODEL_NUMBER 100
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#define MODEL_NAME "Samsung YP-R0"
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/* define this if you have a bitmap LCD display */
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#define HAVE_LCD_BITMAP
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/* define this if you have a colour LCD */
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#define HAVE_LCD_COLOR
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/* Define this if the LCD can shut down */
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#define HAVE_LCD_SHUTDOWN
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/* define this if you have LCD enable function */
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#define HAVE_LCD_ENABLE
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/* define this if you want album art for this target */
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#define HAVE_ALBUMART
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/* define this to enable bitmap scaling */
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#define HAVE_BMP_SCALING
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/* define this to enable JPEG decoding */
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#define HAVE_JPEG
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/* define this if you have access to the quickscreen */
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#define HAVE_QUICKSCREEN
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/* define this if you would like tagcache to build on this target */
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#define HAVE_TAGCACHE
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/* LCD dimensions */
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#define LCD_WIDTH 240
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#define LCD_HEIGHT 320
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/* sqrt(240^2 + 320^2) / 2.6 = 153.8 */
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#define LCD_DPI 154
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#define LCD_DEPTH 24
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/* Check that but should not matter */
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#define LCD_PIXELFORMAT RGB888
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/* YP-R0 has the backlight */
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#define HAVE_BACKLIGHT
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/* Define this for LCD backlight brightness available */
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#define HAVE_BACKLIGHT_BRIGHTNESS
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/* Main LCD backlight brightness range and defaults */
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/* 0 is turned off. 31 is the real maximum for the ASCODEC DCDC but samsung doesn't use any value over 15, so it safer to don't go up too much */
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#define MIN_BRIGHTNESS_SETTING 1
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#define MAX_BRIGHTNESS_SETTING 15
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#define DEFAULT_BRIGHTNESS_SETTING 4
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/* Which backlight fading type? */
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/* TODO: ASCODEC has an auto dim feature, so disabling the supply to leds should do the trick. But for now I tested SW fading only */
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#define CONFIG_BACKLIGHT_FADING BACKLIGHT_FADING_SW_SETTING
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/* define this if you have RTC RAM available for settings */
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/* TODO: in theory we could use that, ascodec offers us such a ram. we have also a small device, part of the nand of 1 MB size, that Samsung uses to store region code etc and it's almost unused space */
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//#define HAVE_RTC_RAM
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/* define this if you have a real-time clock */
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#define CONFIG_RTC RTC_AS3514
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#define HAVE_RTC_ALARM
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/* The number of bytes reserved for loadable codecs */
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#define CODEC_SIZE 0x80000
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/* The number of bytes reserved for loadable plugins */
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#define PLUGIN_BUFFER_SIZE 0x100000
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#define AB_REPEAT_ENABLE
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#define ACTION_WPSAB_SINGLE ACTION_WPS_HOTKEY
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/* Define this if you do software codec */
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#define CONFIG_CODEC SWCODEC
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/* R0 KeyPad configuration for plugins */
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#define CONFIG_KEYPAD SAMSUNG_YPR0_PAD
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#define BUTTON_DRIVER_CLOSE
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/** Non-simulator section **/
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#ifndef SIMULATOR
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/*TODO: implement USB data transfer management -> see safe mode script and think a way to implemtent it in the code */
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#define USB_NONE
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/* The YPR0 has a as3534 codec */
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#define HAVE_AS3514
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#define HAVE_AS3543
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/* We don't have hardware controls */
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#define HAVE_SW_TONE_CONTROLS
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/* We have the Si4709, which supports RDS */
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#define CONFIG_TUNER SI4700
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#define HAVE_TUNER_PWR_CTRL
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#define HAVE_RDS_CAP
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/* Define this for FM radio input available */
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#define HAVE_FMRADIO_IN
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#define INPUT_SRC_CAPS SRC_CAP_FMRADIO
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/* We have a GPIO pin that detects this */
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#define HAVE_HEADPHONE_DETECTION
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/* Define current usage levels. */
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#define CURRENT_NORMAL 24 /* ~25h, on 600mAh that's about 24mA */
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#define CURRENT_BACKLIGHT 62 /* ~6,5h -> 92mA. Minus 24mA normal that gives us 68mA */
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#endif /* SIMULATOR */
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#define BATTERY_CAPACITY_DEFAULT 600 /* default battery capacity */
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#define BATTERY_CAPACITY_MIN 600 /* min. capacity selectable */
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#define BATTERY_CAPACITY_MAX 600 /* max. capacity selectable */
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#define BATTERY_CAPACITY_INC 0 /* capacity increment */
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#define BATTERY_TYPES_COUNT 1 /* only one type */
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#define CONFIG_BATTERY_MEASURE VOLTAGE_MEASURE
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/* Linux controlls charging, we can monitor */
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#define CONFIG_CHARGING CHARGING_MONITOR
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/* We want to be able to reset the averaging filter */
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#define HAVE_RESET_BATTERY_FILTER
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/* same dimensions as gigabeats */
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#define CONFIG_LCD LCD_YPR0
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/* Define this if a programmable hotkey is mapped */
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#define HAVE_HOTKEY
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/* Define this if you have a software controlled poweroff */
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#define HAVE_SW_POWEROFF
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/* Define this if you have adjustable CPU frequency
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* NOTE: We could do that on this device, but it's probably better
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* to let linux do it (we set ondemand governor before loading Rockbox) */
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/* #define HAVE_ADJUSTABLE_CPU_FREQ */
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/* Define this to the CPU frequency */
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#define CPU_FREQ 532000000
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/* 0.8Vcore using 200 MHz */
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/* #define CPUFREQ_DEFAULT 200000000 */
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/* This is 400 MHz -> not so powersaving-ful */
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/* #define CPUFREQ_NORMAL 400000000 */
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/* Max IMX37 Cpu Frequency */
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/* #define CPUFREQ_MAX CPU_FREQ */
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/* This folder resides in the ReadOnly CRAMFS. It is binded to /mnt/media0/.rockbox */
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#define BOOTDIR "/.rockbox"
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/* External SD card can be mounted */
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#define CONFIG_STORAGE (STORAGE_HOSTFS|STORAGE_SD)
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#define HAVE_MULTIDRIVE
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#define NUM_DRIVES 2
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#define HAVE_HOTSWAP
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#define HAVE_STORAGE_FLUSH
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#define MULTIDRIVE_DIR "/mnt/mmc"
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