1 /* SPDX-License-Identifier: GPL-2.0+ OR BSD-2-Clause */ 2 /* 3 * (C) Copyright 2007-2008 Semihalf 4 * 5 * Written by: Rafal Jaworowski <raj@semihalf.com> 6 */ 7 8 #ifndef _API_PUBLIC_H_ 9 #define _API_PUBLIC_H_ 10 11 #define API_EINVAL 1 /* invalid argument(s) */ 12 #define API_ENODEV 2 /* no device */ 13 #define API_ENOMEM 3 /* no memory */ 14 #define API_EBUSY 4 /* busy, occupied etc. */ 15 #define API_EIO 5 /* I/O error */ 16 #define API_ESYSC 6 /* syscall error */ 17 18 typedef int (*scp_t)(int, int *, ...); 19 20 #define API_SIG_VERSION 1 21 #define API_SIG_MAGIC "UBootAPI" 22 #define API_SIG_MAGLEN 8 23 24 struct api_signature { 25 char magic[API_SIG_MAGLEN]; /* magic string */ 26 uint16_t version; /* API version */ 27 uint32_t checksum; /* checksum of this sig struct */ 28 scp_t syscall; /* entry point to the API */ 29 }; 30 31 enum { 32 API_RSVD = 0, 33 API_GETC, 34 API_PUTC, 35 API_TSTC, 36 API_PUTS, 37 API_RESET, 38 API_GET_SYS_INFO, 39 API_UDELAY, 40 API_GET_TIMER, 41 API_DEV_ENUM, 42 API_DEV_OPEN, 43 API_DEV_CLOSE, 44 API_DEV_READ, 45 API_DEV_WRITE, 46 API_ENV_ENUM, 47 API_ENV_GET, 48 API_ENV_SET, 49 API_DISPLAY_GET_INFO, 50 API_DISPLAY_DRAW_BITMAP, 51 API_DISPLAY_CLEAR, 52 API_MAXCALL 53 }; 54 55 #define MR_ATTR_FLASH 0x0001 56 #define MR_ATTR_DRAM 0x0002 57 #define MR_ATTR_SRAM 0x0003 58 59 struct mem_region { 60 unsigned long start; 61 unsigned long size; 62 int flags; 63 }; 64 65 struct sys_info { 66 unsigned long clk_bus; 67 unsigned long clk_cpu; 68 unsigned long bar; 69 struct mem_region *mr; 70 int mr_no; /* number of memory regions */ 71 }; 72 73 /* 74 * FIXME: Previously this code was: 75 * 76 * #undef CONFIG_SYS_64BIT_LBA 77 * #ifdef CONFIG_SYS_64BIT_LBA 78 * typedef u_int64_t lbasize_t; 79 * #else 80 * typedef unsigned long lbasize_t; 81 * #endif 82 * 83 * But we cannot just undefine CONFIG_SYS_64BIT_LBA, because then in 84 * api/api_storage.c the type signature of lbaint_t will be different if 85 * CONFIG_SYS_64BIT_LBA is enabled for the board, which can result in various 86 * bugs. 87 * So simply define lbasize_t as an unsigned long, since this was what was done 88 * anyway for at least 13 years, but don't undefine CONFIG_SYS_64BIT_LBA. 89 */ 90 typedef unsigned long lbasize_t; 91 92 typedef unsigned long lbastart_t; 93 94 #define DEV_TYP_NONE 0x0000 95 #define DEV_TYP_NET 0x0001 96 97 #define DEV_TYP_STOR 0x0002 98 #define DT_STOR_IDE 0x0010 99 #define DT_STOR_SCSI 0x0020 100 #define DT_STOR_USB 0x0040 101 #define DT_STOR_MMC 0x0080 102 #define DT_STOR_SATA 0x0100 103 104 #define DEV_STA_CLOSED 0x0000 /* invalid, closed */ 105 #define DEV_STA_OPEN 0x0001 /* open i.e. active */ 106 107 struct device_info { 108 int type; 109 void *cookie; 110 111 union { 112 struct { 113 lbasize_t block_count; /* no of blocks */ 114 unsigned long block_size; /* size of one block */ 115 } storage; 116 117 struct { 118 unsigned char hwaddr[6]; 119 } net; 120 } info; 121 #define di_stor info.storage 122 #define di_net info.net 123 124 int state; 125 }; 126 127 #define DISPLAY_TYPE_LCD 0x0001 128 #define DISPLAY_TYPE_VIDEO 0x0002 129 130 struct display_info { 131 int type; 132 /* screen size in pixels */ 133 int pixel_width; 134 int pixel_height; 135 /* screen size in rows and columns of text */ 136 int screen_rows; 137 int screen_cols; 138 }; 139 140 #endif /* _API_PUBLIC_H_ */ 141