u-boot.git/lib/efi_loader/efi_console.c, branch v2018.03

efi_loader: add check_tpl parameter to efi_signal_event

2018-01-22T22:09:14+00:00

In ExitBootServices we need to signal events irrespective of the current
TPL level. A new parameter check_tpl is added to efi_signal_event().

Function efi_console_timer_notify() gets some comments.

Signed-off-by: Heinrich Schuchardt 
Signed-off-by: Alexander Graf

efi_loader: consistently use efi_handle_t for handles

2018-01-22T22:09:13+00:00

We should consistently use the efi_handle_t typedef when
referring to handles.

Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Simon Glass 
Signed-off-by: Alexander Graf

efi_loader: efi_console: use helper functions

2017-12-01T12:22:56+00:00

Use helper functions efi_created_handle and efi_add_protocol
for creating the console handles and instaling the respective
protocols.

This change is needed if we want to move from an array of
protocols to a linked list of protocols.

Eliminate EFI_PROTOCOL_OBJECT which is not used anymore.

Currently we have not defined protocol interfaces to be const.
So efi_con_out and efi_console_control cannot be defined as const.

Signed-off-by: Heinrich Schuchardt 
Signed-off-by: Alexander Graf

efi_loader: console support for color attributes

2017-10-12T15:24:25+00:00

Shell.efi uses this, and supporting color attributes makes things look
nicer.  Map the EFI fg/bg color attributes to ANSI escape sequences.
Not all colors have a perfect match, but spec just says "Devices
supporting a different number of text colors are required to emulate the
above colors to the best of the device’s capabilities".

Signed-off-by: Rob Clark 
Tested-by: Heinrich Schuchardt 
Reviewed-by: Alexander Graf 
[agraf: s/unsigned/unsigned int/]
Signed-off-by: Alexander Graf

efi_loader: use type bool for event states

2017-10-09T04:59:38+00:00

Queued and signaled describe boolean states of events.
So let's use type bool and rename the structure members to is_queued
and is_signaled.

Update the comments for is_queued and is_signaled.

Reported-by: Simon Glass 
Signed-off-by: Heinrich Schuchardt 
Reviewed-by: Rob Clark 
Reviewed-by: Rob Clark 
Signed-off-by: Alexander Graf

efi_loader: Some console improvements for vidconsole

2017-09-20T09:29:35+00:00

1) use fputs() to reduce cache flushes from once-per-char to
   once-per-string
2) handle \r, \t, and \b in addition to just \n for tracking
   cursor position
3) cursor row/col are zero based, not one based

Signed-off-by: Rob Clark 
[agraf: s/unsigned/unsigned int/]
Signed-off-by: Alexander Graf

efi_loader: Correctly figure out size for vidconsole

2017-09-20T09:28:39+00:00

If stdout is vidconsole, we cannot rely on ANSI escape sequences to
query the size, as vidconsole cannot reply on stdin.  Instead special-
case this if stdout is vidconsole.

Signed-off-by: Rob Clark 
Signed-off-by: Alexander Graf

efi_loader: split out escape sequence based size query

2017-09-20T09:14:12+00:00

We need to do something different for vidconsole, since it cannot
respond to the query on stdin.  Prep work for next patch.

Signed-off-by: Rob Clark 
Signed-off-by: Alexander Graf

efi_loader: implement queueing of the notification function

2017-09-18T21:53:57+00:00

For the correct implementation of the task priority level (TPL)
calling the notification function must be queued.

Add a status field 'queued' to events.

In function efi_signal_event set status queued if a notification
function exists and reset it after we have called the function.
A later patch will add a check of the TPL here.

In efi_create_event and efi_close_event unset the queued status.

In function efi_wait_for_event and efi_check_event
queue the notification function.

In efi_timer_check call the efi_notify_event
if the status queued is set.
For all timer events set status signaled.

In efi_console_timer_notify set the signaled state of the
WaitForKey event.

Signed-off-by: Heinrich Schuchardt 
Signed-off-by: Alexander Graf

lib: add some utf16 handling helpers

2017-09-12T21:57:59+00:00

We'll eventually want these in a few places in efi_loader, and also
vsprintf.

Signed-off-by: Rob Clark