From 91be9a77b758f5c785787260a1ed8f1b751ff49a Mon Sep 17 00:00:00 2001 From: "xypron.glpk@gmx.de" Date: Tue, 18 Jul 2017 20:17:22 +0200 Subject: efi_console: set up events Set up a timer event and the WaitForKey event. In the notify function of the timer event check for console input and signal the WaitForKey event accordingly. Signed-off-by: Heinrich Schuchardt Signed-off-by: Alexander Graf --- lib/efi_loader/efi_console.c | 40 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 39 insertions(+), 1 deletion(-) (limited to 'lib/efi_loader/efi_console.c') diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c index 8ef7326fef2..dbe98ac08b8 100644 --- a/lib/efi_loader/efi_console.c +++ b/lib/efi_loader/efi_console.c @@ -421,8 +421,46 @@ static efi_status_t EFIAPI efi_cin_read_key_stroke( return EFI_EXIT(EFI_SUCCESS); } -const struct efi_simple_input_interface efi_con_in = { +struct efi_simple_input_interface efi_con_in = { .reset = efi_cin_reset, .read_key_stroke = efi_cin_read_key_stroke, .wait_for_key = NULL, }; + +static struct efi_event *console_timer_event; + +static void efi_key_notify(struct efi_event *event, void *context) +{ +} + +static void efi_console_timer_notify(struct efi_event *event, void *context) +{ + EFI_ENTRY("%p, %p", event, context); + if (tstc()) + efi_signal_event(efi_con_in.wait_for_key); + EFI_EXIT(EFI_SUCCESS); +} + +/* This gets called from do_bootefi_exec(). */ +int efi_console_register(void) +{ + efi_status_t r; + r = efi_create_event(EVT_NOTIFY_WAIT, TPL_CALLBACK, + efi_key_notify, NULL, &efi_con_in.wait_for_key); + if (r != EFI_SUCCESS) { + printf("ERROR: Failed to register WaitForKey event\n"); + return r; + } + r = efi_create_event(EVT_TIMER | EVT_NOTIFY_SIGNAL, TPL_CALLBACK, + efi_console_timer_notify, NULL, + &console_timer_event); + if (r != EFI_SUCCESS) { + printf("ERROR: Failed to register console event\n"); + return r; + } + /* 5000 ns cycle is sufficient for 2 MBaud */ + r = efi_set_timer(console_timer_event, EFI_TIMER_PERIODIC, 50); + if (r != EFI_SUCCESS) + printf("ERROR: Failed to set console timer\n"); + return r; +} -- cgit v1.2.3