1 // SPDX-License-Identifier: GPL-2.0+
20 	unsigned long rows;  member
28 		.rows = 25,
34 		.rows = 50,
40 		.rows = 0,
84  * @num:	number of return values expected
86  * @return:	non-zero indicates error
88 static int term_read_reply(int *n, int num, char end_char)  in term_read_reply()  argument
94 		return -1;  in term_read_reply()
97 		return -1;  in term_read_reply()
104 				if (i >= num)  in term_read_reply()
105 					return -1;  in term_read_reply()
111 				return -1;  in term_read_reply()
116 			n[i] += c - '0';  in term_read_reply()
118 			return -1;  in term_read_reply()
121 	if (i != num - 1)  in term_read_reply()
122 		return -1;  in term_read_reply()
132 	struct cout_mode *mode = &efi_cout_modes[con->mode];  in efi_cout_output_string()
159 			con->cursor_column = max(0, con->cursor_column - 1);  in efi_cout_output_string()
162 			con->cursor_column = 0;  in efi_cout_output_string()
163 			con->cursor_row++;  in efi_cout_output_string()
165 		case '\r':	/* U+000D, carriage-return */  in efi_cout_output_string()
166 			con->cursor_column = 0;  in efi_cout_output_string()
175 			con->cursor_column++;  in efi_cout_output_string()
178 		if (con->cursor_column >= mode->columns) {  in efi_cout_output_string()
179 			con->cursor_column = 0;  in efi_cout_output_string()
180 			con->cursor_row++;  in efi_cout_output_string()
182 		con->cursor_row = min(con->cursor_row, (s32)mode->rows - 1);  in efi_cout_output_string()
197 static bool cout_mode_matches(struct cout_mode *mode, int rows, int cols)  in cout_mode_matches()  argument
199 	if (!mode->present)  in cout_mode_matches()
202 	return (mode->rows == rows) && (mode->columns == cols);  in cout_mode_matches()
206  * query_console_serial() - query console size
208  * @rows	pointer to return number of rows
212 static int query_console_serial(int *rows, int *cols)  in query_console_serial()  argument
224 	 * man page and the ECMA-48 standard.  in query_console_serial()
235 	/* Read {rows,cols} */  in query_console_serial()
242 	*rows = n[0];  in query_console_serial()
258 	int rows = 25, cols = 80;  in query_console_size()  local
264 		struct udevice *dev = stdout_dev->priv;  in query_console_size()
267 		rows = priv->rows;  in query_console_size()
268 		cols = priv->cols;  in query_console_size()
269 	} else if (query_console_serial(&rows, &cols)) {  in query_console_size()
274 	if (cols >= 80 && rows >= 50) {  in query_console_size()
283 	if (!cout_mode_matches(&efi_cout_modes[0], rows, cols) &&  in query_console_size()
284 	    !cout_mode_matches(&efi_cout_modes[1], rows, cols)) {  in query_console_size()
286 		efi_cout_modes[EFI_COUT_MODE_2].rows = rows;  in query_console_size()
296 			unsigned long *rows)  in efi_cout_query_mode()  argument
298 	EFI_ENTRY("%p, %ld, %p, %p", this, mode_number, columns, rows);  in efi_cout_query_mode()
308 	if (rows)  in efi_cout_query_mode()
309 		*rows = efi_cout_modes[mode_number].rows;  in efi_cout_query_mode()
396 	struct cout_mode *mode = &efi_cout_modes[con->mode];  in efi_cout_set_cursor_position()
405 	if (row >= mode->rows || column >= mode->columns) {  in efi_cout_set_cursor_position()
446  * struct efi_cin_notify_function - registered console input notify function
464  * set_shift_mask() - set shift mask
470 	key_state->key_shift_state = EFI_SHIFT_STATE_VALID;  in set_shift_mask()
472 		--mod;  in set_shift_mask()
474 			key_state->key_shift_state |= EFI_LEFT_SHIFT_PRESSED;  in set_shift_mask()
476 			key_state->key_shift_state |= EFI_LEFT_ALT_PRESSED;  in set_shift_mask()
478 			key_state->key_shift_state |= EFI_LEFT_CONTROL_PRESSED;  in set_shift_mask()
480 			key_state->key_shift_state |= EFI_LEFT_LOGO_PRESSED;  in set_shift_mask()
482 		key_state->key_shift_state |= EFI_LEFT_LOGO_PRESSED;  in set_shift_mask()
487  * analyze_modifiers() - analyze modifiers (shift, alt, ctrl) for function keys
510 			mod += c - '0';  in analyze_modifiers()
527  * efi_cin_read_key() - read a key from the console input
529  * @key:	- key received
530  * Return:	- status code
543 	key->key_state.key_shift_state = EFI_SHIFT_STATE_INVALID;  in efi_cin_read_key()
544 	key->key_state.key_toggle_state = EFI_TOGGLE_STATE_INVALID;  in efi_cin_read_key()
546 	/* We do not support multi-word codes */  in efi_cin_read_key()
561 		case 'O': /* F1 - F4 */  in efi_cin_read_key()
565 				set_shift_mask(ch - '0', &key->key_state);  in efi_cin_read_key()
568 			pressed_key.scan_code = ch - 'P' + 11;  in efi_cin_read_key()
574 				pressed_key.scan_code = ch - 'A' + 1;  in efi_cin_read_key()
583 				ch = analyze_modifiers(&key->key_state);  in efi_cin_read_key()
585 				case '1'...'5': /* F1 - F5 */  in efi_cin_read_key()
586 					pressed_key.scan_code = ch - '1' + 11;  in efi_cin_read_key()
588 				case '7'...'9': /* F6 - F8 */  in efi_cin_read_key()
589 					pressed_key.scan_code = ch - '7' + 16;  in efi_cin_read_key()
592 					pressed_key.scan_code = ch - 'A' + 1;  in efi_cin_read_key()
603 				ch = analyze_modifiers(&key->key_state);  in efi_cin_read_key()
605 				case '0'...'1': /* F9 - F10 */  in efi_cin_read_key()
606 					pressed_key.scan_code = ch - '0' + 19;  in efi_cin_read_key()
608 				case '3'...'4': /* F11 - F12 */  in efi_cin_read_key()
609 					pressed_key.scan_code = ch - '3' + 21;  in efi_cin_read_key()
618 				analyze_modifiers(&key->key_state);  in efi_cin_read_key()
622 				analyze_modifiers(&key->key_state);  in efi_cin_read_key()
626 				analyze_modifiers(&key->key_state);  in efi_cin_read_key()
632 			set_shift_mask(3, &key->key_state);  in efi_cin_read_key()
640 		key->key_state.key_shift_state |= EFI_SHIFT_STATE_VALID;  in efi_cin_read_key()
649 			key->key_state.key_shift_state |=  in efi_cin_read_key()
655 				key->key_state.key_shift_state |=  in efi_cin_read_key()
660 	key->key = pressed_key;  in efi_cin_read_key()
666  * efi_cin_notify() - notify registered functions
676 		if (item->key.key.unicode_char || item->key.key.scan_code) {  in efi_cin_notify()
677 			if (item->key.key.unicode_char !=  in efi_cin_notify()
679 			    item->key.key.scan_code != next_key.key.scan_code)  in efi_cin_notify()
682 		if (item->key.key_state.key_shift_state &&  in efi_cin_notify()
683 		    item->key.key_state.key_shift_state !=  in efi_cin_notify()
689 			EFI_CALL(item->function(&next_key));  in efi_cin_notify()
694  * efi_cin_check() - check if keyboard input is available
721  * efi_cin_empty_buffer() - empty input buffer
731  * efi_cin_reset_ex() - reset console input
733  * @this:			- the extended simple text input protocol
734  * @extended_verification:	- extended verification
764  * efi_cin_read_key_stroke_ex() - read key stroke
802 	efi_con_in.wait_for_key->is_signaled = false;  in efi_cin_read_key_stroke_ex()
808  * efi_cin_set_state() - set toggle key state
826 	 * U-Boot supports multiple console input sources like serial and  in efi_cin_set_state()
836  * efi_cin_register_key_notify() - register key notification function
870 		  key_data->key.unicode_char,  in efi_cin_register_key_notify()
871 	       key_data->key.scan_code,  in efi_cin_register_key_notify()
872 	       key_data->key_state.key_shift_state,  in efi_cin_register_key_notify()
873 	       key_data->key_state.key_toggle_state);  in efi_cin_register_key_notify()
880 	notify_function->key = *key_data;  in efi_cin_register_key_notify()
881 	notify_function->function = key_notify_function;  in efi_cin_register_key_notify()
882 	list_add_tail(&notify_function->link, &cin_notify_functions);  in efi_cin_register_key_notify()
889  * efi_cin_unregister_key_notify() - unregister key notification function
925 	list_del(&notify_function->link);  in efi_cin_unregister_key_notify()
933  * efi_cin_reset() - drain the input buffer
965  * efi_cin_read_key_stroke() - read key stroke
1003 	efi_con_in.wait_for_key->is_signaled = false;  in efi_cin_read_key_stroke()
1026  * efi_console_timer_notify() - notify the console timer event
1040  * efi_key_notify() - notify the wait for key event
1053  * efi_console_register() - install the console protocols