u-boot.git/lib/efi_loader/efi_console.c, branch v2019.04

efi_loader: Fix serial console size detection

2019-03-10T18:56:59+00:00

Function term_read_reply tries to read from the serial console until
the end_char was read. This can hang forever if we are, for some reason,
not able to read the full response (e.g. serial buffer too small,
frame error). This patch moves the timeout detection into
term_read_reply() to assure we will make progress.

Fixes: 6bb591f704 ("efi_loader: query serial console size reliably")
Signed-off-by: Matthias Brugger 

Throw missing error when an incomplete reply for the cursor position is
received.

Change type of argument of term_get_char() *s32. This renders the function
reusable in efi_cin_read_key().

Reviewed-by: Heinrich Schuchardt

efi_loader: fix typos

2018-12-02T20:59:37+00:00

Fix typos in EFI subsystem comments.

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

efi_loader: eliminate handle member

2018-12-02T20:59:36+00:00

A pointer to a struct efi_object is a handle. We do not need any handle
member in this structure. Let's eliminate it.

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

efi_loader: return type efi_console_register()

2018-10-16T14:39:38+00:00

Use a return type that can encompass the return value.

This fixes CoverityScan CID 184090.

Reported-by: Tom Rini 
Signed-off-by: Heinrich Schuchardt 
Signed-off-by: Alexander Graf

efi_loader: query serial console size reliably

2018-09-23T19:55:30+00:00

Not all terminals understand CSI [18t for querying the console size.
We should adhere to escape sequences documented in the console_codes
manpage and the ECMA-48 standard.

So here we follow a different approach. We position the cursor to the
bottom right and query its position. Before leaving the function we
restore the original cursor position.

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

efi_loader: terminal left upper corner is [1, 1]

2018-09-23T19:55:30+00:00

For the VT102 and the Linux console the left upper corner is [1, 1].
EFI uses [0, 0] as left upper corner.

Check parameters of the SetCursorPosition() service.

Use CSI H like EDK2 for positioning.

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

efi_loader: implement key notify functions

2018-09-23T19:55:30+00:00

Implement registering and unregistreing key notify functions in the
EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL.

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

efi_loader: support modifiers for F1 - F4

2018-09-23T19:55:30+00:00

Support modifiers for F1 - F4.
Add support for letters with ALT key.

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

efi_loader: EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL

2018-09-23T19:55:30+00:00

This patch implements the EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL.

The implementation of notification functions is postponed to a later
patch.

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

efi_loader: rework event handling for console

2018-09-23T19:55:30+00:00

Preread the next key in the console timer event.

The EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL requires to trigger registered key
notification functions based on the prefetched key.

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