Adds loaders for uImages on the SD card or on a raw flash partition.
These work similarily to load_rockbox() and return a buflib alloc
and size. Booting the image is left up to the caller.
Change-Id: I0d58e8c6a61d8349bc5223431cdd06dfdf2503fa
Separate loading out into its own routine with a file name
parameter in preparation for multiboot support.
Change-Id: Ic651e9fa7738ea97789e4a9669834c4e3ef22d66
Now that everything has been refactored into separate files the
main routine is the only thing left to move. Put it in main.c.
Change-Id: I53aba87ed281b52944fb80d9a62beaec1c87f152
Drop init_usb(), instead initialize USB early in the main function
so the hardware is placed into a known good state after a USB boot.
The impact on boot time should be minimal.
Change-Id: I9774ddfc2c27811363bdb0c54cb0e57b5ca59d73
Add check_disk() to query the disk insertion status and prompt the
user if necessary. Use this in place of init_disk().
Perform an unconditional disk_mount_all() from the main function.
Change-Id: I9a8cc42266edf99cd15ece3aee8fa25835df04ae
Using the audio buffer directly is a bad idea because this will
render core_alloc non-functional if load_firmware() writes into
the buffer but then fails, for example on a checksum mismatch.
Change-Id: Ib2d17bcea53bdea1c4c5496cec0c4eee5dd66069
This problem actually had nothing to do with USB boot; it's
because the cable is plugged in when the USB mode menu item
is selected. The USB thread detected the select button press
and went into charge-only mode (as it usually does when you
hold down a key in Rockbox). This is fixed by having the USB
thread ignore most keys in the bootloader.
USB connect events are delivered via the button queue, and
there were also cases where the connection could be missed
if the event happened within another UI screen. This should
also be fixed.
Change-Id: I077d705a6ac845c8713219eee45d26aa6addfa61
there is a 1MB free region that is used to load the firmware but we
shouldn't need that till after a USB connection
so here is my 2nd try
Change-Id: I2552db3a7fba019d7e7188984432f758ddafe548
* Power button is what forces entry into USB mode
(can't use the other buttons due to the long SADC warmup)
* Inching closer to working USB disk mode (starts then disconnects!
Change-Id: I45ff1c61f39e0e0c3615b38278f5c91b6ef2ed6c
* Rework the LCD initialization a bit
* Power off after 5 seconds if we hit a fatal error
* Turn on verbose output if PLAY is held down on powerup
* Minor code style cleanups
The goal is to not perform the LCD init unless it's needed; ie
only if we run into an error or enter USB mode.
Change-Id: I3f93e881ff55d104f453985ed452f35b433a7d99
* Explicitly clear the caches prior to launching the binary
* Ensure the function that launches the binary is in iram
* Re-sequenced some of the subsystem initializations
* Fixes for USB mode
Change-Id: Ie020b18586b2599edeb88529dd3d7337e33a5a6f
What works:
- LCD: 16-bit RGB565
- all buttons, including scrollwheel
- SD Card
- Battery level and charging/not charging status
- USB
- audio
- sample rate switching
- HP / LO detect, with "safe" fixed LO volume -
LO volume will only be put to user-defined max volume
if headphones are not present.
- rtc
- Plugins build, tried a couple and they seem OK
- Bootloader, installable to nand via usbboot
What doesn't work:
- Dual Boot
- power on/off has intermittent, low volume audio click
(sometimes it's completely silent, sometimes there's
a click)
- Audio uses 16-bit volume scaling, so clicking/popping
is pretty bad at lower volumes - need 32 bit volume
scaling, 24 bit I2S data
- USB HID keys not yet defined
- no jztool support
Unknowns:
- Stereo Switch pins: Direction select, AC_DC
(probably not even hooked up)
- What is the actual purpose of the Stereo Swtich?
- How does the bluetooth module connect?
"Someday" stuff:
- get LCD working at higher bit depth
- Bluetooth
Change-Id: I70dda8fc092c6e3f4352f2245e4164193f803c33
- Audio playback works
- Touchscreen and buttons work
- Bootloader works and is capable of dual boot
- Plugins are working
- Cabbiev2 theme has been ported
- Stable for general usage
Thanks to Marc Aarts for porting Cabbiev2 and plugin bitmaps.
There's a few minor known issues:
- Bootloader must be installed manually using 'usbboot' as there is
no support in jztool yet.
- Keymaps may be lacking, need further testing and feedback.
- Some plugins may not be fully adapted to the screen size and could
benefit from further tweaking.
- LCD shows abnormal effects under some circumstances: for example,
after viewing a mostly black screen an afterimage appears briefly
when going back to a brightly-lit screen. Sudden power-off without
proper shutdown of the backlight causes a "dissolving" effect.
- CW2015 battery reporting driver is buggy, and disabled for now.
Battery reporting is currently voltage-based using the AXP192.
Change-Id: I635e83f02a880192c5a82cb0861ad3a61c137c3a
This streamlines the boot code a bit and reduces target specific
boilerplate. The clock init hack used by the bootloader has been
"standardized" and works for the main Rockbox binary now, so you
can boot rockbox.bin over USB without special hacks.
Change-Id: I7c1fac37df5a45873583ce6818eaedb9f71a782b
Prevent startup screen flash by properly using AVR LCM functions. Power
off LCD when not needed to improve battery runtime.
Change-Id: I76e3c5c0208774f189fbc6f7d7b3c9e22c062285
This uses an equivalent algorithm but with a different initial value
than we normally use (all bits off vs all bits on). Use the new crc_32r
to replace the original MI4 crc32 implementation.
This frees up some extra space on mi4 targets which gives us more
room on a few very space constrained targets (sansa c200/e200, etc).
Change-Id: Iaaac3ae353b30566156b1404cbf31ca32926203d
Acknowledge SYS_USB_CONNECTED in all queues so USB task can gain
exclusive access to the storage.
Reduce CPPI requeue timeout to speed up disk access.
Change-Id: I322aae4cac679696bb8186ccacf838a18f0715e9
Port USB driver from Sansa Connect Linux kernel sources. The device
successfully enumerates and responds to SCSI commands but actual disk
access does not work. The SCSI response sent to host mentions that both
internal storage and microsd card are not present.
Change-Id: Ic6c07da12382c15c0b069f23a75f7df9765b7525
Clearing recoverzap parameter exists the Recovery Mode. This makes it
possible to run Rockbox on Sansa Connect without relying on original
Linux firmware.
Enable write-through cache on flash memory as write-back complicates
handling without any real benefits. The flash memory accepts commands
as series of writes at predefined addresses, so it is important that
the cache does not interfere with the writes.
Change-Id: I219f962f20953d84df43012cf16bbb16d673add8
SPL and UCL-compressed bootloader are now packed into one output,
bootloader.m3k, eliminating the separate SPL build phase.
The Rockbox bootloader now has a recovery menu, accessible by
holding VOL+ when booting, that lets you back up, restore, and
update the bootloader from the device.
Change-Id: I642c6e5fb83587a013ab2fbfd1adab439561ced2
They were never finished, never saw any release ever, and haven't
compiled for the better part of a decade. Given their HW capabilities [1],
they are not worth trying to fix.
[1] 1-2MB RAM, ~256MB onboard flash, no expandability
Change-Id: I7b2a5806d687114c22156bb0458d4a10a9734190
This only required a minor patch to the usb-designware driver due
to DMA requiring physical addresses -- on the X1000, these differ
from virtual addresses so we have to do the usual conversion.
Both the mass storage and HID drivers work, but there are a few
issues so this can't be considered 100% stable yet.
- Mass storage might not be detected properly on insertion,
and USB has to be replugged before it shows up
- HID driver may occasionally panic or hang the machine
Change-Id: Ia3ce7591d5928ec7cbca7953abfef01bdbd873ef
SPL is now designed so core X1000 code is in control of the boot,
under the reasonable assumption that the device boots from flash.
It should not be too hard to adapt to other X1000 ports.
The biggest functional change is that the SPL can now read/write
the flash, under the control of a host computer. The SPL relies
on the boot ROM for USB communication, so the host has to execute
the SPL multiple times following a protocol.
Change-Id: I3ffaa00e4bf191e043c9df0e2e64d15193ff42c9
Inline assembly in RoLO and the FiiO M3K bootloader used 'jr' to
jump to a newly loaded Rockbox binary, but incorrectly left the
branch delay slot open. That gives GCC an opening to place illegal
instrutions, etc, which might cause an unhandled exception.
Change-Id: Ia7a561fe530e94a41189d25f18a767c448177960
After reviewing the code awhile I realized that the failsafe and hold
switch have no impact on the boot process when the usb or charger is
connected. That makes no real sense to me. If these are connected then
neither will be used at all. The boot process will never revisit it
either once those other modes end and resume the boot process. It will
just continue to try to boot from disk as if these emergency settings
never existed.
I have decided it makes more sense for them to be evaluated once the
higher priority charge and disk mode have finished their roles. Given
how the code was originally written it seems to be they were not
intended to run prior to these at the very least since the logical
conditions preclude that possibility as they include the inverse of
the conditions that trigger the charge and disk modes.
Change-Id: I0531c97474572c573178f480c239c3c1659f9653
This fixes an early boot bug on the h300 where hold_status is
read before it has a chance to properly check whether the hold
switch is even active. This was accomplished by porting over
the method the h1x0 uses to perform the same check.
Change-Id: I04679d82f65a2edcbee4be9a146437c3988040a2
This saves a few bytes of precious space by consolidating paths where
they can be combined with no change to the underlying algorithm.
Change-Id: Ie6b7ead190a87d66fcbdcf2e351010bab751d952
The most major change here is the porting of the failsafe boot
menu and eeprom settings support from the h1x0 bootloader to the
h300 bootloader. This has been successfully tested already and
indeed works about the same as it does on the h1x0 bootloader.
The other major change is the addition of new code to both
bootloaders that will retry the flash boot function after
exitting disk mode. It still falls back to booting from disk
if this either fails or is not configured to boot from flash.
There were also various other modifications to bring the two
closer in sync so there are fewer differences.
Change-Id: I17a5724e03225b57e9d0071387294aa6cd025178
First this removes most of the conditionals for the CPP as they
are always true for the targets that use the bootloader source.
Second this moves some global variable references around to reduce
some redundancy in the h1x0 bootloader source.
All of this is done to make it easier to compare the two bootloaders
as they are very heavily related to each other.
Change-Id: I7eb4a3106fb9fce6059797310d9e053a3d3ecf63
This enables USB charging when the bootloader is in charge mode or
disk mode. As a byproduct there is a small change in behavior where
charge mode is all that is available if it is triggered by the USB
cable insertion. Disk mode only becomes available if the user requests
to continue the boot process by pressing the power button. It had to be
done this way as there's no way to tell this early whether the user
wants to simply charge or trigger disk mode as well.
Change-Id: I32f29398b22a76e5e754efdc9beecae39dd122d5
