1 // SPDX-License-Identifier: GPL-2.0+
32 	if (!config->ghost_filter || valid < 3)  in has_ghosting()
38 		 * and the other is in the same column as the i-th key.  in has_ghosting()
57 	const u8 *keymap;  in key_matrix_decode()  local
62 	keymap = config->plain_keycode;  in key_matrix_decode()
66 		debug("  valid=%d, row=%d, col=%d\n", key->valid, key->row,  in key_matrix_decode()
67 		      key->col);  in key_matrix_decode()
68 		if (!key->valid)  in key_matrix_decode()
70 		pos = key->row * config->num_cols + key->col;  in key_matrix_decode()
71 		if (config->fn_keycode && pos == config->fn_pos)  in key_matrix_decode()
72 			keymap = config->fn_keycode;  in key_matrix_decode()
76 			keycode[valid++] = keymap[pos];  in key_matrix_decode()
77 		debug("    keycode=%d\n", keymap[pos]);  in key_matrix_decode()
98  * its position if found (this is used for finding the Fn key).
104  * @param pos           Returns position of map_keycode, if found, else -1
113 		*pos = -1;  in create_keymap()
114 	map = (uchar *)calloc(1, config->key_count);  in create_keymap()
117 			config->key_count);  in create_keymap()
121 	for (; len >= sizeof(u32); data++, len -= 4) {  in create_keymap()
129 		entry = row * config->num_cols + col;  in create_keymap()
146 	prop = dev_read_prop(dev, "linux,keymap", &proplen);  in key_matrix_decode_fdt()
147 	/* Basic keymap is required */  in key_matrix_decode_fdt()
149 		debug("%s: cannot find keycode-plain map\n", __func__);  in key_matrix_decode_fdt()
150 		return -1;  in key_matrix_decode_fdt()
154 				      &config->fn_pos);  in key_matrix_decode_fdt()
155 	config->plain_keycode = plain_keycode;  in key_matrix_decode_fdt()
156 	/* Conversion error -> fail */  in key_matrix_decode_fdt()
157 	if (!config->plain_keycode)  in key_matrix_decode_fdt()
158 		return -1;  in key_matrix_decode_fdt()
160 	prop = dev_read_prop(dev, "linux,fn-keymap", &proplen);  in key_matrix_decode_fdt()
161 	/* fn keymap is optional */  in key_matrix_decode_fdt()
165 	config->fn_keycode = create_keymap(config, prop, proplen, -1, NULL);  in key_matrix_decode_fdt()
166 	/* Conversion error -> fail */  in key_matrix_decode_fdt()
167 	if (!config->fn_keycode) {  in key_matrix_decode_fdt()
169 		return -1;  in key_matrix_decode_fdt()
174 	      config->plain_keycode, config->fn_keycode);  in key_matrix_decode_fdt()
182 	config->num_rows = rows;  in key_matrix_init()
183 	config->num_cols = cols;  in key_matrix_init()
184 	config->key_count = rows * cols;  in key_matrix_init()
185 	config->ghost_filter = ghost_filter;  in key_matrix_init()
186 	assert(config->key_count > 0);  in key_matrix_init()