1 /* 2 * (C) Copyright 2007-2008 Semihalf 3 * 4 * Written by: Rafal Jaworowski <raj@semihalf.com> 5 * 6 * SPDX-License-Identifier: GPL-2.0+ BSD-2-Clause 7 */ 8 9 #ifndef _API_PUBLIC_H_ 10 #define _API_PUBLIC_H_ 11 12 #define API_EINVAL 1 /* invalid argument(s) */ 13 #define API_ENODEV 2 /* no device */ 14 #define API_ENOMEM 3 /* no memory */ 15 #define API_EBUSY 4 /* busy, occupied etc. */ 16 #define API_EIO 5 /* I/O error */ 17 #define API_ESYSC 6 /* syscall error */ 18 19 typedef int (*scp_t)(int, int *, ...); 20 21 #define API_SIG_VERSION 1 22 #define API_SIG_MAGIC "UBootAPI" 23 #define API_SIG_MAGLEN 8 24 25 struct api_signature { 26 char magic[API_SIG_MAGLEN]; /* magic string */ 27 uint16_t version; /* API version */ 28 uint32_t checksum; /* checksum of this sig struct */ 29 scp_t syscall; /* entry point to the API */ 30 }; 31 32 enum { 33 API_RSVD = 0, 34 API_GETC, 35 API_PUTC, 36 API_TSTC, 37 API_PUTS, 38 API_RESET, 39 API_GET_SYS_INFO, 40 API_UDELAY, 41 API_GET_TIMER, 42 API_DEV_ENUM, 43 API_DEV_OPEN, 44 API_DEV_CLOSE, 45 API_DEV_READ, 46 API_DEV_WRITE, 47 API_ENV_ENUM, 48 API_ENV_GET, 49 API_ENV_SET, 50 API_DISPLAY_GET_INFO, 51 API_DISPLAY_DRAW_BITMAP, 52 API_DISPLAY_CLEAR, 53 API_MAXCALL 54 }; 55 56 #define MR_ATTR_FLASH 0x0001 57 #define MR_ATTR_DRAM 0x0002 58 #define MR_ATTR_SRAM 0x0003 59 60 struct mem_region { 61 unsigned long start; 62 unsigned long size; 63 int flags; 64 }; 65 66 struct sys_info { 67 unsigned long clk_bus; 68 unsigned long clk_cpu; 69 unsigned long bar; 70 struct mem_region *mr; 71 int mr_no; /* number of memory regions */ 72 }; 73 74 #undef CONFIG_SYS_64BIT_LBA 75 #ifdef CONFIG_SYS_64BIT_LBA 76 typedef u_int64_t lbasize_t; 77 #else 78 typedef unsigned long lbasize_t; 79 #endif 80 typedef unsigned long lbastart_t; 81 82 #define DEV_TYP_NONE 0x0000 83 #define DEV_TYP_NET 0x0001 84 85 #define DEV_TYP_STOR 0x0002 86 #define DT_STOR_IDE 0x0010 87 #define DT_STOR_SCSI 0x0020 88 #define DT_STOR_USB 0x0040 89 #define DT_STOR_MMC 0x0080 90 #define DT_STOR_SATA 0x0100 91 92 #define DEV_STA_CLOSED 0x0000 /* invalid, closed */ 93 #define DEV_STA_OPEN 0x0001 /* open i.e. active */ 94 95 struct device_info { 96 int type; 97 void *cookie; 98 99 union { 100 struct { 101 lbasize_t block_count; /* no of blocks */ 102 unsigned long block_size; /* size of one block */ 103 } storage; 104 105 struct { 106 unsigned char hwaddr[6]; 107 } net; 108 } info; 109 #define di_stor info.storage 110 #define di_net info.net 111 112 int state; 113 }; 114 115 #define DISPLAY_TYPE_LCD 0x0001 116 #define DISPLAY_TYPE_VIDEO 0x0002 117 118 struct display_info { 119 int type; 120 /* screen size in pixels */ 121 int pixel_width; 122 int pixel_height; 123 /* screen size in rows and columns of text */ 124 int screen_rows; 125 int screen_cols; 126 }; 127 128 #endif /* _API_PUBLIC_H_ */ 129