Commit graph

4403 commits

Author SHA1 Message Date
Szymon Dziok
78311e07c3 HDD63X0: fix values for charging (based on OF).
Change-Id: I382b7a037bf9648f993a38d247725ec8c966147f
2016-03-13 20:25:50 +01:00
Cástor Muñoz
51389955fb usb-s3c6400x: fix broken build for LOGF_ENABLE
Change-Id: I4513425b887a0a79b03420ef82fd82bd90e7bafa
2016-02-16 21:42:43 +01:00
Michael Sparmann
bc56811a0e iPod Nano 2G and Classic: Fix power and charging detection.
This should allow FireWire charging to work on these devices.
It also adds charging state detection on the iPod Classic.

(cherry picked from commit fa86fec4fb)

On Classic (and probably Nano 2G), it seems that the 100/500mA limit
applies only to USB chargers, when FW is connected it supplies all the
power (even if USB is also connected) and USB current limit does not
affect to FW charging, therefore the limit is only set when USB is
connected.

Change-Id: I7c6bab1b6a0f295367999c45faeda6085c3fb091
Signed-off-by: Cástor Muñoz <cmvidal@gmail.com>
2016-02-14 15:42:54 +01:00
Cástor Muñoz
929be521d4 iPod Classic: fix buffer alignment on HDD driver
Read/write buffers who are aligned to 16 were not re-aligned to 32 as
it should be. Althrough USB storage and buffering are always passing
buffers aligned to 32, a few unaligned buffers are being received from
other tasks, so this patch could solve some rare random issues.

Also fixes DMA configuration for HDDs that support any MDMA mode but
only UDMA0 (probably will never happen).

Change-Id: I00219ae434205681c69293fc563e0526224c9adf
2016-02-14 15:19:31 +01:00
Cástor Muñoz
3216f390c5 iPod Classic: fix build when ATA_HAVE_BBT is not defined
Change-Id: I186c24259cc28941ef21c54ae9ba23c1ba77133e
2016-02-14 15:19:03 +01:00
Cástor Muñoz
e9497dbf6d iPod Classic: ATA SMART updates
- Add description for attributes supported by Samsung HS081HA (80Gb)
  and HS161JQ (CEATA 160Gb).
- Show error code when ata_read_smart() fails.

Change-Id: I618cc4f37d139fc90f596e2cf3a751346b27deb6
2016-02-14 15:17:42 +01:00
Cástor Muñoz
0b6647f2e9 usb-s3c6400x: set alignment for ep0_setup_pkt
Align USB_DEVBSS buffers to 32 (as other USB drivers are doing), this
could solve rare random memory corruption issues on iPod Classic.

Change-Id: I86a28e10415eabedab7bf4a534530900284f81e5
2016-02-14 14:51:13 +01:00
Cástor Muñoz
e2f943f229 iPod Classic: revert "set initial USB current limit to 500mA"
Reverts commit ead38dbc9d

It was introduced as a temporal workaround to avoid the endless restart
loop when battery is low, but really it is useless. The bootloader should
ensure that there is enough power to launch Rockbox even in the worst
scenario.

Change-Id: Iabebed40c9241af915c16c3c6c4d3c6deef7680e
2016-01-29 19:39:03 +01:00
Cástor Muñoz
4605df1e3c iPod Classic: remove uninteresting info in HW debug screen
CPU type and frequency of the PLLs are fixed and have no interest
at this moment.

Change-Id: I9524127add872908c062a5cfa2fca348a03e846e
2016-01-29 19:28:22 +01:00
Sebastian Leonhardt
e6cd53ad53 Replace SAMSUNG_YH920_PAD with YH92X
seems more logical to me, and is more consistent, since
"SAMSUNG_YH92X_PAD" is already used in the tex files.

Change-Id: Ie9a9d850ea86155a7dcf86c88a22a420a10a3837
2016-01-25 09:23:09 +01:00
Mihail Zenkov
3f54101858 Enable frequency scaling on AMSv2 devices.
Voltage scaling is not yet enabled, but will follow once we are sure
these changes are stable.  Preliminary testing suggests a large
increase in battery life, which will be further improved by voltage
scaling.  Patch by Mihail Zenkov with help from myself and others on
the forums.

Change-Id: I171d20bbee19a48c13cd14efb0d023883cc8c687
2016-01-21 19:26:00 +01:00
Michael Giacomelli
7432af0958 Make sure the system is boosted before enabling USB hardware.
Change-Id: Ib44d29384f359dff24f0ce012667d9ce93328dc2
2016-01-18 23:55:22 +01:00
Michael Giacomelli
9f364a13c6 Increase button delays in preperation for frequency scaling.
When run at lower clock speeds, delays seem to need to be a little
longer in absolute time.

Change-Id: I5373f43094302e6fa3f0a79126e54cfccd90f5a4
2016-01-18 23:51:25 +01:00
Michael Giacomelli
784790dbec Change the clipv2 button driver to use fixed delays rather than processor cycle counting.
Also introduce a new delay needed for frequency scaling.

Change-Id: I575a503a8ca44358fcd5512fd951fe9c7bbde31c
2016-01-18 22:35:56 +01:00
Szymon Dziok
7800aaca2f Samsung YH92X: Remove unneeded line.
Change-Id: Icc2618391e831af7bc1998f7627176315443bcdb
2016-01-12 21:02:16 +01:00
Cástor Muñoz
a953964167 iPod Classic: fix wake-up from power-off on USB insert
Change-Id: I57897aa1bb98b652bc6c953680bf548648f5915b
2016-01-12 14:24:54 +01:00
Cástor Muñoz
9e24d5df1a iPod Classic: update documentation on PMU target
Change-Id: I936889872f83521731e81a972657086a357bb5eb
2016-01-12 14:24:44 +01:00
Cástor Muñoz
2d23c0310e iPod Classic: use uncached memory for USB driver
Change-Id: I0e72b4a452a17ec894c975dfee4baee878113ff8
2015-12-17 10:53:00 +01:00
Cástor Muñoz
00bda90a21 iPod Classic: add non-cached memory region
Configures uncached memory region and adds some defines for misc HW,
for compability with the bootloader and other future use, current
functionality should not be affected.

Change-Id: I390e79bea1aef5b10dfbc72ad327d7fe438ec6f5
2015-12-17 10:52:49 +01:00
Cástor Muñoz
348bfc5c8f iPod Classic: clickwheel fixes
Uses GPIO.E2 (Request To Send) to detect the holdswitch status,
it is a temporal workaround that seems to work on all models.

Holdswitch status must be detected to drive low GPIO.E2 (RTS)
and GPIO.E4 (Data Out) when the holdswitch is locked, otherwise
battery life decreases about 25%.

Holdswitch unlock action is detected by reading the HELLO message
that the external wheel controller sends when it is powered on,
this allows to quickly capture clickwheel activity after unlock.
GPIO.E2 is also used in case the HELLO message is missed because
the holdswitch was unlocked before Rockbox/bootloader starts.

These 2 lines (RTS and DOUT) can not be used to transmit messages
to the external clickwheel controller, not a problem, actually no
messages are sent while normal operation, only at initialization
stage.

Change-Id: I415fe54bfcbc2086d0f56d7affe6f789ce81a6db
2015-12-17 10:26:51 +01:00
Cástor Muñoz
ead38dbc9d iPod Classic: set initial USB current limit to 500mA
Change-Id: Ie56951457e45da04d8e93b53f5cc8f80f9a69de3
2015-12-17 10:09:07 +01:00
Cástor Muñoz
5c67ebbc33 iPod Classic: prepare LCD driver for the bootloader
Optimizes encoding of LCD command sequences.

Change-Id: I9d1eb735e5a972c1a176177ed570a3fe991d7b9f
2015-12-17 09:14:58 +01:00
Cástor Muñoz
f753b8ead1 iPod Classic: s5l8702 clocking rewrite+documentation
This is a rewrite of the clocking section, the resulting system
frequencies are the same as the current git version.

This pàtch uses fixed FClk and just one register is written to switch
all system frequencies, it needs less steps than the current git
version to reach the desired frequency, so it is faster and safer.
Includes functions to step-up/down over a table of predefined set of
frequencies.

The major difference is that Vcore is decreased from 1050 to 1000 mV.

See clocking-s5l8702.h for more information.

Change-Id: I58ac6634e1996adbe1c0c0918a7ce94ad1917d8e
2015-12-17 07:05:53 +01:00
Sebastian Leonhardt
a507bb2837 YH8xx,YH9xx: Keymap improvement
The main "innovation" in this patch are two "virtual buttons"
for the record switch on YH92x targets. When the switch state
changes, a single BUTTON_REC_SW_ON or .._OFF button event will
be generated. Thus keymap code can react on switching, but
not on the actual state of the switch.

Wherever sensible, the following user scheme is applied:
- use PLAY as confirm button
- use REW button or Long REW to exit
- use REC (YH820) or FFWD (YH92X) as modifier key for button combos

Change-Id: Ic8d1db9cc6869daed8dda98990dfdf7f6fd5d5a1
2015-11-15 23:46:39 +01:00
Szymon Dziok
2172c11849 Samsung YH820/YH92X: different way of powering off to avoid powering
on after powering off in a loop on YH92X.

Change-Id: I5e5a4fe23c87286045ac82aff5c38bff6331a7f4
2015-10-14 21:23:46 +02:00
Cástor Muñoz
d20185ac96 iPod Classic: reads HDD S.M.A.R.T. data
Adds ata_read_smart() function to storage ATA driver, current
SMART data can be displayed and optionally written to hard
disk using System->Debug menu.

Change-Id: Ie8817bb311d5d956df2f0fbfaf554e2d53e89a93
2015-10-07 06:15:04 +02:00
Cástor Muñoz
32b4558511 iPod Classic: initialize USB power configuration
This patch limits the drawn USB current to 100/500mA, instead of
the actual 200/1000mA settings. It also initializes other USB power
related GPIOs.

Solves some USB disconnect issues: FS#12990, FS#12956. I am using a
powered USB HUB with no problems (Vusb=5.05V unloaded), but there
are lots of USB disconnects when using the motherboard USB ports
(Vusb=4.91V), this patch solves all my issues.

Actually, it seems that the USB current drain is limited to 1000mA,
when a load peak occurs most USB2 ports deliver more than 500mA, as
current consumption increases the USB voltage decreases, an excesive
voltage drop produces USB disconnections. Limiting USB current drain
to 500mA also limits the voltage drop, preventing subsequent USB
failures.

Anyway, to minimize voltage drop, it is recommended to use quality
cables and preferably connect to USB ports with higher Vusb.

Change-Id: I1b931aa18ec93bfd1214e475a72e42893eff52f6
2015-10-07 06:15:04 +02:00
Cástor Muñoz
efd047a08b iPod Classic: implement IPOD_ACCESSORY_PROTOCOL
Change-Id: I0f0950c42ae5bf5c5b4c2c2f097f8c68a92ba4dd
2015-10-07 06:15:03 +02:00
Cástor Muñoz
38ae0d53e8 iPod Classic: implement HAVE_SERIAL
Change-Id: I24a861cd45095d858d1a7db39969f6eda17cc563
2015-10-07 06:15:03 +02:00
Cástor Muñoz
9f27dc2103 iPod Classic: introduce s5l8702 UART driver
- polling/IRQ modes for Tx/Rx (TODO?: DMA)
- fine adjust for Tx/Rx bitrates
- auto bauding using HW circuitry
- status and stats in debug screen

Change-Id: I8650957063bc6d274d92eba2779d93ae73453fb6
2015-10-07 06:15:03 +02:00
Cástor Muñoz
291b2338c9 ipod Classic: implement HAVE_RECORDING
This patch has been tested on iPod 80 and 160slim, actually
it works but some updates must be done to the final version:

 - unlimitted input buffer
 - decrease CHUNK_SIZE
 - use non-cached addresses instead of discard d-cache ???

Capture hardware versions:

 Ver  iPod models   capture support
 ---  -----------   ---------------
 0    80/160fat     dock line-in
 1    120/160slim   dock line-in + jack mic

 HW version 1 includes an amplifier for the jack plug mic.

 Capture HW detection only tested on iPod 80 and 160slim.

CODEC power:

 AFAIK, OF powers CS42L55 at VA=2.4V for capture (1.8V for
 playback) and turns on the ADC charge pump. CODEC datasheet
 recommmends to disable the charge pump for VA>2.1V.

 CS42L55 DS, s4.13 (Required Initialization Settings): for
 VA>2.1V, some adjustments "must" be done using undocummented
 "control port compensation" registers. OF does not modifies
 these registers when VA=2.4V.

 This patch configures capture HW in the same way as OF does.

TODO:
 - ADC full scale voltage depends on VA, perform tests to find
   clipping levels for VA=1.8V and VA=2.4V

Change-Id: I7e20fd3ecaa83b1c58d5c746f5153fe5c3891d75
2015-10-07 06:15:03 +02:00
Cástor Muñoz
67b4e7f958 iPod Classic: use new PL080 DMA driver
This patch uses the new pl080 DMA driver for I2S playback and LCD
update. I have tried to be as fiel as possible to the current
behaviour, algorithms and configurations are the same, but using
the new driver. Other modifications:

Playback:

 - CHUNK_SIZE is decreased from 42988 to 8188 bytes, it does not
   affect normal playback (block size 1024), was tested using
   metronome (block size 46080). This change is needed because the
   new code commits d-cache range instead of commiting the whole
   d-cache, maximum time spent commiting the range should be
   limited, CHUNK_SIZE can be decreased even more if necessary.

 - pcm_play_dma_start() calls pcm_play_dma_stop() to stop the
   channel when it is running (metronome replays the tick sound
   without stopping the channel).

 - pcm_play_dma_get_peak_buffer(): same as actual SVN function but
   returns samples count instead of bytes count.
   TODO: AFAIK, actually this function is not used in RB. Not tested,
   but probably this function will fail because it returns pointers
   to the internal double buffer.

LCD update:

 - suppresses lcd_wakeup semaphore and uses yield()

Change-Id: I79b8aa47a941e0dd91847150618f3f7f676c26ef
2015-10-07 06:15:03 +02:00
Cástor Muñoz
d6ee2c9eaf iPod Classic: introduce PL080 DMA controller driver
Motivation:

 This driver began as a set of functions to help to test and
 experiment with different DMA configurations. It is cumbersome,
 time consuming, and leads to mistakes to handle LLIs and DMA
 registers dispersed along the code.

 Later, i decided to adapt an old DMA queue driver written in the
 past for a similar (scatter-gather) controller, all task/queue
 code is based on the old driver.

 Finally, some cleaning and dmac_ch_get_info() function was added
 to complete RB needs.

Description:

 - Generic, can be used by other targets including the same
   controller. Not difficult to adapt for other similar
   controllers if necesary.

 - Easy to experiment and compare results using different
   setups and/or queue algorithms:

   Multi-controller and fully configurable from an unique place.

   All task and LLI management is done by the driver, user only
   has to (statically) allocate them.

 - Two queue modes:

   QUEUE_NORMAL: each task in the queue is launched using a new
   DMA transfer once previous task is finished.

   QUEUE_LINK: when a task is queued, it is linked with the last
   queued task, creating a single continuous DMA transfer. New
   tasks must be queued while the channel is running, otherwise
   the continuous DMA transfer will be broken.

   On Classic, QUEUE_LINK mode is needed for I2S continuous
   transfers, QUEUE_NORMAL is used for LCD and could be useful
   in the future for I2C or UART (non-blocking serial debug) if
   necessary.

 - Robust DMA transfer progress info (peak meter), needs final
   testing, see below.

Technical details about DMA progress:

 There are comments in the code related to the method actually
 used (sequence method), it reads progress without halting the
 DMA transfer. Althought the datasheet does not recommend to do
 that, the sequence method seems to be robust, I ran tests calling
 dmac_ch_get_info() millions of times and the results were always
 as expected (tests done at 2:1 CPU/AHB clock ratio, no other
 ratios were tried but probably sequence method will work for any
 typical ratio).

 This controller allows to halt the transfer and drain the DMAC
 FIFO, DMA requests are ignored when the DMA channel is halted.
 This method is not suitable for playback because FIFO is never
 drained to I2S peripheral (who raises the DMA requests). This
 method probably works for capture, the FIFO is drained to memory
 before halting.

 Another way is to disable (stop) the playback channel. When the
 channel is disabled, all FIFO data is lost. It is unknown how much
 the FIFO was filled when it was cleared, SRCADDR counter includes
 the lost data, therefore the only useful information is LINK and
 COUNT, that is the same information disponible when using the
 sequence method. At this point we must procced in the same way as
 in sequence method, in addition the playback channel should be
 relaunched (configure + start) after calculating real SRCADDR.

 The stop+relaunch method should work, it is a bit complicated,
 and not valid for all peripheral FIFO configurations (depending
 on stream rate). Moreover, due to the way the COUNT register is
 implemented in HW, I suspect that this method will fail when
 source and destination bus widths doesn't match. And more
 important, it is not easy to garantize that no sample is lost
 here or there, using the sequence method we can always be sure
 that playback is ok.

Change-Id: Ib12a1e2992e2b6da4fc68431128c793a21b4b540
2015-10-07 06:15:03 +02:00
Cástor Muñoz
609cde9468 iPod Classic: s5l8702 GPIO interrupt controller.
This patch implements a simple API to use the external interrupt
hardware present on s5l8702 (GPIO interrupt controller). This
GPIOIC has been fully tested using emcore apps.

Code is based on openiBoot project, there are a few modifications
to optimize space considering we will only use two or three external
interrupts. The API compiles and works, but has been never used,
therefore probably will need some changes to the final version.

External interrupts are necessary for jack remote+mic controller
(see iAP Interface Specifiction: Headphone Remote and Mic System),
this controller is located at I2C bus address 0x72, there is a IRQ
line for remote button press/release events routed to GPIO E6. At
this moment, the functionallity of this controller has been
extensively tested using emcore, getting a lot of information about
how it works. Microphone is already working on RB, jack accessory
detection and button events are work in progress.

PMU IRQ line is also routed to GPIO F3, it signals many events:
holdswitch, usb plug, wall adapter, low battery... The use of PMU
interrupts is the orthodox way of doing things, at this moment
there is no work done in this direction, there are a lot of PMU
events and i think it is a matter of discursion what to do and how.

Change-Id: Icc2e48965e664ca56c9518d84a81c9d9fdd31736
2015-10-07 06:15:03 +02:00
Cástor Muñoz
983c8084c9 iPod Classic: do not use HDD features on CE-ATA drives
Fix an 'ATA error' issue that affects CE-ATA devices.

Change-Id: I246348bb0506155b096ed8559dcf1b0b0fab3596
2015-07-17 01:03:51 +02:00
Mihail Zenkov
e7550a4f6e AMS: Change DMA transfer size for audio.
Slightly reduces power consumption due to DMA overhead.

Change-Id: I8576e9e243ce13a71cde710c3a726dce19bafb97
2015-06-01 18:23:57 +02:00
Mihail Zenkov
f775870a5a AMS: Fix pop-clicks noise on play/stop.
This noise itroduced by starting/stopping I2SO MCLK.
Enable MCLK permanently fix it.

Change-Id: I6d9c51e5ea5bca13026833d2bfdda49d94c6b723
2015-04-09 19:26:05 +02:00
Michael Sevakis
36480c259f Fix a race condition in as3525 I2C driver caused by stacked ISRs.
It was possible for interrupts of higher priority than the current IRQ
level to attempt to restart the interface while it was still active on
a transfer. The list modification also wasn't protected within the I2C
ISR itself.

Change-Id: I70635c307a1443bba6801c588cf1efde299db9a4
2015-03-16 03:27:08 -04:00
Eduard Kutuev
8a078d7853 iBasso DX90 sound enabling fix
Writing 0 instead of '0' to /sys/class/codec/wm8740_mute enables sound on DX90.

Change-Id: Ie8e3980cac6b9298ef2c94f2faac023811d47b32
2015-02-14 18:10:54 +03:00
Udo Schläpfer
d81b36222a iBasso DX50: Digital filter roll off setting.
This patch enables "Settings -> Sound Settings -> DAC's filter roll-off" for the
iBasso DX50.

Confirmed working on iBasso DX50, firmware 1.6.

Change-Id: I901615541d8fa4f6550c5156cf8c6069f5bdf9d0
2015-02-07 13:34:06 +01:00
Udo Schläpfer
95fdad5e28 iBasso DX50/DX90: User selectable USB mode.
Depends on http://gerrit.rockbox.org/r/#/c/1043/.

This patch adds a new setting in Settings -> General -> System: USB Mode.

Usable in Quickscreen and Shortcuts.

Possible settings are:
- Mass Storage: The default, on USB connect export the internal and external
drives as usual. Rockbox will exit gracefully in this case, since the internal
drive (/mnt/sdcard) is exported as mass storage device and Android prevents
Rockbox from continued execution.
- Charge Only: USB charge only, do not export the internal and external drives.
This will not close Rockbox.
- ADB: Enable the Android Debug Bridge. This will not close Rockbox.

Charge only and ADB are actually the same, since it is not yet established if
charge only is doable without adb and major hooks into Android.

German translation provided.

This may be genric for Android based devices but is only enabled
for iBasso Devices. Other maintainers may choose do adopt this.

Change-Id: I616247c29946c6595ebcf8f0c14b2410c9f0498b
2015-02-02 22:43:46 +01:00
Udo Schläpfer
040306a716 iBasso DX50/DX90: User selectable freq scaling governor.
Depends on http://gerrit.rockbox.org/r/#/c/1043/.

This patch adds a new setting in Settings -> General
-> System: Freq Scaling Governor

Usable in Quickscreen and Shortcuts.

Possible settings are:
- Conservative: Slow frequency switching.
- Ondemand or Interactive: Fast frequency switching.
- Powersave: Allways lowest frequency.
- Performance: Allways highest frequency.

German translation provided.

This may be genric for Android kernel based devices but is only enabled
for iBasso Devices. Other maintainers may choose do adopt this.

Change-Id: I10296f5be9586ad3a409105db0cd03682a30e9c1
2015-02-02 21:58:25 +01:00
Udo Schläpfer
dbabd0d9c3 iBasso DX50/DX90: Major code cleanup and reorganization.
Reorganization

- Separated iBasso devices from PLATFORM_ANDROID. These are now standlone
  hosted targets. Most device specific code is in the
  firmware/target/hosted/ibasso directory.
- No dependency on Android SDK, only the Android NDK is needed.
  32 bit Android NDK and Android API Level 16.
- Separate implementation for each device where feasible.

Code cleanup

- Rewrite of existing code, from simple reformat to complete reimplementation.
- New backlight interface, seperating backlight from touchscreen.
- Rewrite of device button handler, removing unneeded code and fixing memory
  leaks.
- New Debug messages interface logging to Android adb logcat (DEBUGF, panicf,
  logf).
- Rewrite of lcd device handler, removing unneeded code and fixing memory leaks.
- Rewrite of audiohw device handler/pcm interface, removing unneeded code and
  fixing memory leaks, enabling 44.1/48kHz pthreaded playback.
- Rewrite of power and powermng, proper shutdown, using batterylog results
  (see http://gerrit.rockbox.org/r/#/c/1047/).
- Rewrite of configure (Android NDK) and device specific config.
- Rewrite of the Android NDK specific Makefile.

Misc

- All plugins/games/demos activated.
- Update tinyalsa to latest from https://github.com/tinyalsa/tinyalsa.

Includes

- http://gerrit.rockbox.org/r/#/c/993/
- http://gerrit.rockbox.org/r/#/c/1010/
- http://gerrit.rockbox.org/r/#/c/1035/

Does not include http://gerrit.rockbox.org/r/#/c/1007/ due to new backlight
interface and new option for hold switch, touchscreen, physical button
interaction.

Rockbox needs the iBasso DX50/DX90 loader for startup, see
http://gerrit.rockbox.org/r/#/c/1099/

The loader expects Rockbox to be installed in /mnt/sdcard/.rockbox/. If
/mnt/sdcard/ is accessed as USB mass storage device, Rockbox will exit
gracefully and the loader will restart Rockbox on USB disconnect.

Tested on iBasso DX50.
Compiled (not tested) for iBasso DX90.
Compiled (not tested) for PLATFORM_ANDROID.

Change-Id: I5f5e22e68f5b4cf29c28e2b40b2c265f2beb7ab7
2015-02-02 21:57:55 +01:00
Udo Schläpfer
a312ca1c50 CPUFreq scaling governor interface for Linux/Android hosted devices.
For a usage example see http://gerrit.rockbox.org/r/#/c/1074/

Change-Id: I1d61e0eba6552a9b5d6e15a2e3169435b2f7079d
2015-01-30 20:15:58 +01:00
Udo Schläpfer
6d3dc8fce0 iBasso DX50/DX90: CPU info enhancements.
System -> Debug (Keep Out) -> View CPU stats

Will now show the current cpufreq scaling governor, minimum, current and
maximum cpufreq scaling frequency for each CPU.

This may be genric for Android kernel based devices but is only enabled
for iBasso Devices. Other maintainers may choose do adopt this.

Change-Id: I53e212f8707bf2abaa557e297293fb559ac37058
2015-01-30 20:15:21 +01:00
Lorenzo Miori
f35d63bc21 ypr0/ypr1: GPIO handling API refactoring
The GPIO APIs for ypr0 and ypr1 targets was messy, requiring a
direct communication via several ioctls calls.
Since it is planned to add support to other devices, more GPIO are
going to be used. For that reason the functions shall be clear and
easy to use.

Change-Id: Ia2304335e1fed1305cc2c4320bd4c097e13079be
2015-01-29 20:28:59 +01:00
Lorenzo Miori
6879dec6ec yp-r0: improve the charging code
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
2015-01-29 20:28:07 +01:00
Marcin Bukat
200ca66963 Fix red/yellow round #2
Change-Id: Ife25eac11fc6f6cedeca8f3fa59536bce0efe2cd
2015-01-12 13:25:14 +01:00
Marcin Bukat
9ffd9327e3 Fix red/yellow
Change-Id: Ie01251af2cd843979b5fdefcfa541ba377d13bd7
2015-01-12 12:02:24 +01:00
Marcin Bukat
89ba7e818c Get rid of stupid _backlight_* function names
_remote_backlight_* and _buttonlight_* are cleaned as well

Change-Id: I73653752831bbe170c26ba95d3bc04c2e3a5cf30
2015-01-12 11:09:27 +01:00