1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * (C) Copyright 2021 Rockchip Electronics Co., Ltd
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #include <common.h>
8*4882a593Smuzhiyun #include <boot_rkimg.h>
9*4882a593Smuzhiyun #include <memalign.h>
10*4882a593Smuzhiyun #include <android_avb/rk_avb_ops_user.h>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #define CONFIG_SET_DFU_ALT_BUF_LEN (SZ_1K)
get_dfu_alt(char * interface,char * devstr)13*4882a593Smuzhiyun static char *get_dfu_alt(char *interface, char *devstr)
14*4882a593Smuzhiyun {
15*4882a593Smuzhiyun struct blk_desc *dev_desc;
16*4882a593Smuzhiyun char *alt_boot;
17*4882a593Smuzhiyun #ifdef CONFIG_ANDROID_AB
18*4882a593Smuzhiyun char current_slot[3] = {0};
19*4882a593Smuzhiyun #endif
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun dev_desc = rockchip_get_bootdev();
22*4882a593Smuzhiyun if (!dev_desc) {
23*4882a593Smuzhiyun printf("%s: dev_desc is NULL!\n", __func__);
24*4882a593Smuzhiyun return NULL;
25*4882a593Smuzhiyun }
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun switch (dev_desc->if_type) {
28*4882a593Smuzhiyun #ifdef CONFIG_DFU_MMC
29*4882a593Smuzhiyun case IF_TYPE_MMC:
30*4882a593Smuzhiyun alt_boot = DFU_ALT_BOOT_EMMC;
31*4882a593Smuzhiyun break;
32*4882a593Smuzhiyun #endif
33*4882a593Smuzhiyun #ifdef CONFIG_DFU_MTD
34*4882a593Smuzhiyun case IF_TYPE_MTD:
35*4882a593Smuzhiyun #ifdef CONFIG_ANDROID_AB
36*4882a593Smuzhiyun rk_avb_get_current_slot(current_slot);
37*4882a593Smuzhiyun
38*4882a593Smuzhiyun if (!strcmp(current_slot, "_a")) {
39*4882a593Smuzhiyun alt_boot = DFU_ALT_BOOT_MTD_B;
40*4882a593Smuzhiyun printf("\ncurrent boot from slot A!\n");
41*4882a593Smuzhiyun } else if (!strcmp(current_slot, "_b")) {
42*4882a593Smuzhiyun alt_boot = DFU_ALT_BOOT_MTD_A;
43*4882a593Smuzhiyun printf("\ncurrent boot from slot B!\n");
44*4882a593Smuzhiyun } else {
45*4882a593Smuzhiyun return NULL;
46*4882a593Smuzhiyun }
47*4882a593Smuzhiyun #else
48*4882a593Smuzhiyun alt_boot = DFU_ALT_BOOT_MTD;
49*4882a593Smuzhiyun #endif
50*4882a593Smuzhiyun break;
51*4882a593Smuzhiyun #endif /* CONFIG_DFU_MTD */
52*4882a593Smuzhiyun default:
53*4882a593Smuzhiyun printf("[dfu ERROR]:Boot device type is invalid!\n");
54*4882a593Smuzhiyun return NULL;
55*4882a593Smuzhiyun }
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun return alt_boot;
58*4882a593Smuzhiyun }
59*4882a593Smuzhiyun
set_dfu_alt_info(char * interface,char * devstr)60*4882a593Smuzhiyun void set_dfu_alt_info(char *interface, char *devstr)
61*4882a593Smuzhiyun {
62*4882a593Smuzhiyun size_t buf_size = CONFIG_SET_DFU_ALT_BUF_LEN;
63*4882a593Smuzhiyun ALLOC_CACHE_ALIGN_BUFFER(char, buf, buf_size);
64*4882a593Smuzhiyun char *alt_info = "Settings not found!";
65*4882a593Smuzhiyun char *status = "error!\n";
66*4882a593Smuzhiyun char *alt_setting;
67*4882a593Smuzhiyun int offset = 0;
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun puts("DFU alt info setting: ");
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun alt_setting = get_dfu_alt(interface, devstr);
72*4882a593Smuzhiyun if (alt_setting) {
73*4882a593Smuzhiyun env_set("dfu_alt_boot", alt_setting);
74*4882a593Smuzhiyun offset = snprintf(buf, buf_size, "%s", alt_setting);
75*4882a593Smuzhiyun }
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun if (offset) {
78*4882a593Smuzhiyun alt_info = buf;
79*4882a593Smuzhiyun status = "done\n";
80*4882a593Smuzhiyun }
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun env_set("dfu_alt_info", alt_info);
83*4882a593Smuzhiyun puts(status);
84*4882a593Smuzhiyun }
85