efi/libstub/gop.c

27 	enum efi_cmdline_option option;
36 } cmdline = { .option = EFI_CMDLINE_NONE };
38 static bool parse_modenum(char *option, char **next)
42 	if (!strstarts(option, "mode="))
44 	option += strlen("mode=");
45 	m = simple_strtoull(option, &option, 0);
46 	if (*option && *option++ != ',')
48 	cmdline.option = EFI_CMDLINE_MODE_NUM;
51 	*next = option;
55 static bool parse_res(char *option, char **next)
60 	if (!isdigit(*option))
62 	w = simple_strtoull(option, &option, 10);
63 	if (*option++ != 'x' || !isdigit(*option))
65 	h = simple_strtoull(option, &option, 10);
66 	if (*option == '-') {
67 		option++;
68 		if (strstarts(option, "rgb")) {
69 			option += strlen("rgb");
71 		} else if (strstarts(option, "bgr")) {
72 			option += strlen("bgr");
74 		} else if (isdigit(*option))
75 			d = simple_strtoull(option, &option, 10);
79 	if (*option && *option++ != ',')
81 	cmdline.option     = EFI_CMDLINE_RES;
87 	*next = option;
91 static bool parse_auto(char *option, char **next)
93 	if (!strstarts(option, "auto"))
95 	option += strlen("auto");
96 	if (*option && *option++ != ',')
98 	cmdline.option = EFI_CMDLINE_AUTO;
100 	*next = option;
104 static bool parse_list(char *option, char **next)
106 	if (!strstarts(option, "list"))
108 	option += strlen("list");
109 	if (*option && *option++ != ',')
111 	cmdline.option = EFI_CMDLINE_LIST;
113 	*next = option;
117 void efi_parse_option_graphics(char *option)
119 	while (*option) {
120 		if (parse_modenum(option, &option))
122 		if (parse_res(option, &option))
124 		if (parse_auto(option, &option))
126 		if (parse_list(option, &option))
129 		while (*option && *option++ != ',')
390 	switch (cmdline.option) {