Orange Pi5 kernel

Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards

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^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /* -----------------------------------------------------------------------
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *   Copyright 2011 Intel Corporation; author Matt Fleming
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * ----------------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) #include <linux/bitops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/ctype.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/efi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/screen_info.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <asm/efi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <asm/setup.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include "efistub.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) enum efi_cmdline_option {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	EFI_CMDLINE_NONE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	EFI_CMDLINE_MODE_NUM,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	EFI_CMDLINE_RES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	EFI_CMDLINE_AUTO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	EFI_CMDLINE_LIST
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) static struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	enum efi_cmdline_option option;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	union {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 		u32 mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 		struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 			u32 width, height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 			int format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 			u8 depth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 		} res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) } cmdline = { .option = EFI_CMDLINE_NONE };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) static bool parse_modenum(char *option, char **next)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	u32 m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	if (!strstarts(option, "mode="))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	option += strlen("mode=");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	m = simple_strtoull(option, &option, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	if (*option && *option++ != ',')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	cmdline.option = EFI_CMDLINE_MODE_NUM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	cmdline.mode   = m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	*next = option;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) static bool parse_res(char *option, char **next)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	u32 w, h, d = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	int pf = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	if (!isdigit(*option))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	w = simple_strtoull(option, &option, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	if (*option++ != 'x' || !isdigit(*option))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	h = simple_strtoull(option, &option, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	if (*option == '-') {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 		option++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 		if (strstarts(option, "rgb")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 			option += strlen("rgb");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 			pf = PIXEL_RGB_RESERVED_8BIT_PER_COLOR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 		} else if (strstarts(option, "bgr")) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 			option += strlen("bgr");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 			pf = PIXEL_BGR_RESERVED_8BIT_PER_COLOR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 		} else if (isdigit(*option))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 			d = simple_strtoull(option, &option, 10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 			return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	if (*option && *option++ != ',')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	cmdline.option     = EFI_CMDLINE_RES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	cmdline.res.width  = w;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	cmdline.res.height = h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	cmdline.res.format = pf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	cmdline.res.depth  = d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	*next = option;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) static bool parse_auto(char *option, char **next)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	if (!strstarts(option, "auto"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	option += strlen("auto");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	if (*option && *option++ != ',')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	cmdline.option = EFI_CMDLINE_AUTO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	*next = option;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) static bool parse_list(char *option, char **next)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	if (!strstarts(option, "list"))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	option += strlen("list");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	if (*option && *option++ != ',')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 		return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	cmdline.option = EFI_CMDLINE_LIST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	*next = option;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) void efi_parse_option_graphics(char *option)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	while (*option) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 		if (parse_modenum(option, &option))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 		if (parse_res(option, &option))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		if (parse_auto(option, &option))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 		if (parse_list(option, &option))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		while (*option && *option++ != ',')
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 			;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) static u32 choose_mode_modenum(efi_graphics_output_protocol_t *gop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	efi_status_t status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	efi_graphics_output_protocol_mode_t *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	efi_graphics_output_mode_info_t *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	unsigned long info_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	u32 max_mode, cur_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	int pf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	mode = efi_table_attr(gop, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	cur_mode = efi_table_attr(mode, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	if (cmdline.mode == cur_mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 		return cur_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	max_mode = efi_table_attr(mode, max_mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	if (cmdline.mode >= max_mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		efi_err("Requested mode is invalid\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		return cur_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	status = efi_call_proto(gop, query_mode, cmdline.mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 				&info_size, &info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	if (status != EFI_SUCCESS) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 		efi_err("Couldn't get mode information\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		return cur_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	pf = info->pixel_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	efi_bs_call(free_pool, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	if (pf == PIXEL_BLT_ONLY || pf >= PIXEL_FORMAT_MAX) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 		efi_err("Invalid PixelFormat\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 		return cur_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	return cmdline.mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) static u8 pixel_bpp(int pixel_format, efi_pixel_bitmask_t pixel_info)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	if (pixel_format == PIXEL_BIT_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 		u32 mask = pixel_info.red_mask | pixel_info.green_mask |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 			   pixel_info.blue_mask | pixel_info.reserved_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 		if (!mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 			return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		return __fls(mask) - __ffs(mask) + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	} else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		return 32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) static u32 choose_mode_res(efi_graphics_output_protocol_t *gop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	efi_status_t status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	efi_graphics_output_protocol_mode_t *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	efi_graphics_output_mode_info_t *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	unsigned long info_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	u32 max_mode, cur_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	int pf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	efi_pixel_bitmask_t pi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	u32 m, w, h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	mode = efi_table_attr(gop, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	cur_mode = efi_table_attr(mode, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	info = efi_table_attr(mode, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	pf = info->pixel_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	pi = info->pixel_information;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	w  = info->horizontal_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	h  = info->vertical_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	if (w == cmdline.res.width && h == cmdline.res.height &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	    (cmdline.res.format < 0 || cmdline.res.format == pf) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	    (!cmdline.res.depth || cmdline.res.depth == pixel_bpp(pf, pi)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		return cur_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	max_mode = efi_table_attr(mode, max_mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	for (m = 0; m < max_mode; m++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 		if (m == cur_mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		status = efi_call_proto(gop, query_mode, m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 					&info_size, &info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 		if (status != EFI_SUCCESS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 		pf = info->pixel_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		pi = info->pixel_information;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		w  = info->horizontal_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		h  = info->vertical_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		efi_bs_call(free_pool, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 		if (pf == PIXEL_BLT_ONLY || pf >= PIXEL_FORMAT_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 		if (w == cmdline.res.width && h == cmdline.res.height &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 		    (cmdline.res.format < 0 || cmdline.res.format == pf) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		    (!cmdline.res.depth || cmdline.res.depth == pixel_bpp(pf, pi)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 			return m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	efi_err("Couldn't find requested mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	return cur_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) static u32 choose_mode_auto(efi_graphics_output_protocol_t *gop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	efi_status_t status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	efi_graphics_output_protocol_mode_t *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	efi_graphics_output_mode_info_t *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	unsigned long info_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	u32 max_mode, cur_mode, best_mode, area;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	u8 depth;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	int pf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	efi_pixel_bitmask_t pi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	u32 m, w, h, a;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	u8 d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	mode = efi_table_attr(gop, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 	cur_mode = efi_table_attr(mode, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	max_mode = efi_table_attr(mode, max_mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 	info = efi_table_attr(mode, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	pf = info->pixel_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	pi = info->pixel_information;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 	w  = info->horizontal_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	h  = info->vertical_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	best_mode = cur_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	area = w * h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	depth = pixel_bpp(pf, pi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	for (m = 0; m < max_mode; m++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 		if (m == cur_mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 		status = efi_call_proto(gop, query_mode, m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 					&info_size, &info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 		if (status != EFI_SUCCESS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 		pf = info->pixel_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 		pi = info->pixel_information;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 		w  = info->horizontal_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 		h  = info->vertical_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 		efi_bs_call(free_pool, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 		if (pf == PIXEL_BLT_ONLY || pf >= PIXEL_FORMAT_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 		a = w * h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 		if (a < area)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 		d = pixel_bpp(pf, pi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 		if (a > area || d > depth) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 			best_mode = m;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 			area = a;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 			depth = d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 	return best_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) static u32 choose_mode_list(efi_graphics_output_protocol_t *gop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	efi_status_t status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	efi_graphics_output_protocol_mode_t *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 	efi_graphics_output_mode_info_t *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	unsigned long info_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	u32 max_mode, cur_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	int pf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	efi_pixel_bitmask_t pi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	u32 m, w, h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 	u8 d;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	const char *dstr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	bool valid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	efi_input_key_t key;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 	mode = efi_table_attr(gop, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 	cur_mode = efi_table_attr(mode, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 	max_mode = efi_table_attr(mode, max_mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	efi_printk("Available graphics modes are 0-%u\n", max_mode-1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 	efi_puts("  * = current mode\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 		 "  - = unusable mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 	for (m = 0; m < max_mode; m++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 		status = efi_call_proto(gop, query_mode, m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 					&info_size, &info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 		if (status != EFI_SUCCESS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 		pf = info->pixel_format;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 		pi = info->pixel_information;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 		w  = info->horizontal_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 		h  = info->vertical_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 		efi_bs_call(free_pool, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 		valid = !(pf == PIXEL_BLT_ONLY || pf >= PIXEL_FORMAT_MAX);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 		d = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 		switch (pf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 		case PIXEL_RGB_RESERVED_8BIT_PER_COLOR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 			dstr = "rgb";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 		case PIXEL_BGR_RESERVED_8BIT_PER_COLOR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 			dstr = "bgr";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 		case PIXEL_BIT_MASK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 			dstr = "";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 			d = pixel_bpp(pf, pi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 		case PIXEL_BLT_ONLY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 			dstr = "blt";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 		default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 			dstr = "xxx";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 			break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 		efi_printk("Mode %3u %c%c: Resolution %ux%u-%s%.0hhu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 			   m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 			   m == cur_mode ? '*' : ' ',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 			   !valid ? '-' : ' ',
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 			   w, h, dstr, d);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	efi_puts("\nPress any key to continue (or wait 10 seconds)\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 	status = efi_wait_for_key(10 * EFI_USEC_PER_SEC, &key);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 	if (status != EFI_SUCCESS && status != EFI_TIMEOUT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 		efi_err("Unable to read key, continuing in 10 seconds\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 		efi_bs_call(stall, 10 * EFI_USEC_PER_SEC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 	return cur_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) static void set_mode(efi_graphics_output_protocol_t *gop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 	efi_graphics_output_protocol_mode_t *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 	u32 cur_mode, new_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 	switch (cmdline.option) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	case EFI_CMDLINE_MODE_NUM:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 		new_mode = choose_mode_modenum(gop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) 	case EFI_CMDLINE_RES:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 		new_mode = choose_mode_res(gop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 	case EFI_CMDLINE_AUTO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 		new_mode = choose_mode_auto(gop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 	case EFI_CMDLINE_LIST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 		new_mode = choose_mode_list(gop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) 	mode = efi_table_attr(gop, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 	cur_mode = efi_table_attr(mode, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) 	if (new_mode == cur_mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 	if (efi_call_proto(gop, set_mode, new_mode) != EFI_SUCCESS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 		efi_err("Failed to set requested mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) static void find_bits(u32 mask, u8 *pos, u8 *size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 	if (!mask) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) 		*pos = *size = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 	/* UEFI spec guarantees that the set bits are contiguous */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 	*pos  = __ffs(mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 	*size = __fls(mask) - *pos + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) static void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) setup_pixel_info(struct screen_info *si, u32 pixels_per_scan_line,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 		 efi_pixel_bitmask_t pixel_info, int pixel_format)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 	if (pixel_format == PIXEL_BIT_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 		find_bits(pixel_info.red_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 			  &si->red_pos, &si->red_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 		find_bits(pixel_info.green_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 			  &si->green_pos, &si->green_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 		find_bits(pixel_info.blue_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 			  &si->blue_pos, &si->blue_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 		find_bits(pixel_info.reserved_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 			  &si->rsvd_pos, &si->rsvd_size);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 		si->lfb_depth = si->red_size + si->green_size +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 			si->blue_size + si->rsvd_size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 		si->lfb_linelength = (pixels_per_scan_line * si->lfb_depth) / 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) 		if (pixel_format == PIXEL_RGB_RESERVED_8BIT_PER_COLOR) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) 			si->red_pos   = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) 			si->blue_pos  = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 		} else /* PIXEL_BGR_RESERVED_8BIT_PER_COLOR */ {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) 			si->blue_pos  = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) 			si->red_pos   = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) 		si->green_pos = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 		si->rsvd_pos  = 24;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) 		si->red_size = si->green_size =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) 			si->blue_size = si->rsvd_size = 8;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) 		si->lfb_depth = 32;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) 		si->lfb_linelength = pixels_per_scan_line * 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) static efi_graphics_output_protocol_t *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) find_gop(efi_guid_t *proto, unsigned long size, void **handles)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) 	efi_graphics_output_protocol_t *first_gop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) 	efi_handle_t h;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) 	first_gop = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) 	for_each_efi_handle(h, handles, size, i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) 		efi_status_t status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) 		efi_graphics_output_protocol_t *gop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) 		efi_graphics_output_protocol_mode_t *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) 		efi_graphics_output_mode_info_t *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) 		efi_guid_t conout_proto = EFI_CONSOLE_OUT_DEVICE_GUID;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) 		void *dummy = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) 		status = efi_bs_call(handle_protocol, h, proto, (void **)&gop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) 		if (status != EFI_SUCCESS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) 		mode = efi_table_attr(gop, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) 		info = efi_table_attr(mode, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) 		if (info->pixel_format == PIXEL_BLT_ONLY ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) 		    info->pixel_format >= PIXEL_FORMAT_MAX)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) 			continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) 		/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) 		 * Systems that use the UEFI Console Splitter may
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) 		 * provide multiple GOP devices, not all of which are
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) 		 * backed by real hardware. The workaround is to search
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) 		 * for a GOP implementing the ConOut protocol, and if
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) 		 * one isn't found, to just fall back to the first GOP.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) 		 *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) 		 * Once we've found a GOP supporting ConOut,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) 		 * don't bother looking any further.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) 		 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) 		status = efi_bs_call(handle_protocol, h, &conout_proto, &dummy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) 		if (status == EFI_SUCCESS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) 			return gop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) 		if (!first_gop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) 			first_gop = gop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) 	return first_gop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) 			      unsigned long size, void **handles)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) 	efi_graphics_output_protocol_t *gop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) 	efi_graphics_output_protocol_mode_t *mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) 	efi_graphics_output_mode_info_t *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) 	gop = find_gop(proto, size, handles);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) 	/* Did we find any GOPs? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) 	if (!gop)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) 		return EFI_NOT_FOUND;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) 	/* Change mode if requested */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) 	set_mode(gop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) 	/* EFI framebuffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) 	mode = efi_table_attr(gop, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) 	info = efi_table_attr(mode, info);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) 	si->orig_video_isVGA = VIDEO_TYPE_EFI;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) 	si->lfb_width  = info->horizontal_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) 	si->lfb_height = info->vertical_resolution;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) 	efi_set_u64_split(efi_table_attr(mode, frame_buffer_base),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) 			  &si->lfb_base, &si->ext_lfb_base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) 	if (si->ext_lfb_base)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) 		si->capabilities |= VIDEO_CAPABILITY_64BIT_BASE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) 	si->pages = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) 	setup_pixel_info(si, info->pixels_per_scan_line,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) 			     info->pixel_information, info->pixel_format);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) 	si->lfb_size = si->lfb_linelength * si->lfb_height;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) 	si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) 	return EFI_SUCCESS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557)  * See if we have Graphics Output Protocol
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) efi_status_t efi_setup_gop(struct screen_info *si, efi_guid_t *proto,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) 			   unsigned long size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) 	efi_status_t status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) 	void **gop_handle = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) 	status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, size,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) 			     (void **)&gop_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) 	if (status != EFI_SUCCESS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) 		return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) 	status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL, proto, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) 			     &size, gop_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) 	if (status != EFI_SUCCESS)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) 		goto free_handle;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) 	status = setup_gop(si, proto, size, gop_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) free_handle:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) 	efi_bs_call(free_pool, gop_handle);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) 	return status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) }