#include #include "dtb_node.h" int dtb_test() { void *fdt; if ((fdt = dtb_node_load_from_fs("vexpress-v2p-ca9.dtb")) != RT_NULL) { struct dtb_node *dtb_node_list = dtb_node_get_dtb_list(fdt); if (dtb_node_list != RT_NULL) { struct dtb_node *serial0 = dtb_node_get_dtb_node_by_path(dtb_node_list, "/smb@4000000/motherboard/iofpga@7,00000000/uart@9000"); struct dtb_node *cpu = dtb_node_get_dtb_node_by_path(dtb_node_list, "/cpus"); struct dtb_node *user1 = dtb_node_get_dtb_node_by_path(dtb_node_list, "/smb@4000000/motherboard/leds/user1"); if (serial0 != RT_NULL) { int property_size; rt_uint32_t u32_value; rt_uint32_t *u32_ptr; char *str_ptr; rt_kprintf("name = %s\n", serial0->name); rt_kputs("reg = <"); for_each_property_cell(serial0, "reg", u32_value, u32_ptr, property_size) { rt_kprintf("0x%x,", u32_value); } rt_kputs("\b>;\n"); rt_kputs("compatible = "); for_each_property_string(serial0, "compatible", str_ptr, property_size) { rt_kprintf("\"%s\",", str_ptr); } rt_kputs("\b;\n"); } if (cpu != RT_NULL) { struct dtb_node *cpu_child = cpu; rt_kprintf("\nname = %s\n", cpu->name); for_each_node_child(cpu_child) { rt_kprintf("path = %s\n", cpu_child->path); } } if (user1 != RT_NULL) { struct dtb_node *user = user1; rt_kprintf("\nname = %s, lable = %s\n", user1->name, dtb_node_get_dtb_node_property(user1, "label", RT_NULL)); for_each_node_sibling(user) { rt_kprintf("name = %s, lable = %s\n", user->name, dtb_node_get_dtb_node_property(user, "label", RT_NULL)); } } } dtb_node_free_dtb_list(dtb_node_list); } if ((fdt = dtb_node_load_from_fs("bcm2711-rpi-4-b.dtb")) != RT_NULL) { struct dtb_node *dtb_node_list = dtb_node_get_dtb_list(fdt); if (dtb_node_list != RT_NULL) { struct dtb_node *bt_pins; int memreserve_size; struct dtb_memreserve *memreserve; bt_pins = dtb_node_get_dtb_node_by_name_DFS(dtb_node_list, "bt_pins"); bt_pins = dtb_node_get_dtb_node_by_name_BFS(dtb_node_list, bt_pins->name); bt_pins = dtb_node_get_dtb_node_by_phandle_DFS(dtb_node_list, bt_pins->handle); bt_pins = dtb_node_get_dtb_node_by_phandle_BFS(dtb_node_list, bt_pins->handle); memreserve = dtb_node_get_dtb_memreserve(bt_pins, &memreserve_size); if (memreserve_size > 0) { int i; for (i = 0; i < memreserve_size; ++i) { rt_kputs("\n/memreserve/\t"); if (IN_64BITS_MODE) { rt_kprintf("0x%016x 0x%016x;", memreserve[i].address, memreserve[i].size); } else { rt_kprintf("0x%08x%08x 0x%08x%08x;", memreserve[i].address, memreserve[i].size); } } } if (bt_pins != RT_NULL) { int property_size; rt_uint8_t u8_value; rt_uint8_t *u8_ptr; rt_kprintf("\n\nphandle = <0x%x>\n", bt_pins->handle); rt_kprintf("name = %s\n", bt_pins->name); rt_kprintf("path = %s\n", bt_pins->path); rt_kputs("brcm,pins = ["); for_each_property_byte(bt_pins, "brcm,pins", u8_value, u8_ptr, property_size) { rt_kprintf("%02x ", u8_value); } rt_kputs("\b]\n"); } } dtb_node_free_dtb_list(dtb_node_list); } return 0; } MSH_CMD_EXPORT(dtb_test, dtb API test); int dtb_dump(int argc, char** argv) { struct dtb_node *dtb_root_node = get_dtb_node_head(); if(argc == 1) { if (dtb_root_node != RT_NULL) { dtb_node_get_dts_dump(dtb_root_node); } } else { rt_kprintf("invailed parameter\n"); } return 0; } MSH_CMD_EXPORT(dtb_dump, dtb dump from mem);