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 #include <linux/types.h> 12 13 #define API_EINVAL 1 /* invalid argument(s) */ 14 #define API_ENODEV 2 /* no device */ 15 #define API_ENOMEM 3 /* no memory */ 16 #define API_EBUSY 4 /* busy, occupied etc. */ 17 #define API_EIO 5 /* I/O error */ 18 #define API_ESYSC 6 /* syscall error */ 19 20 typedef int (*scp_t)(int, int *, ...); 21 22 #define API_SIG_VERSION 1 23 #define API_SIG_MAGIC "UBootAPI" 24 #define API_SIG_MAGLEN 8 25 26 struct api_signature { 27 char magic[API_SIG_MAGLEN]; /* magic string */ 28 uint16_t version; /* API version */ 29 uint32_t checksum; /* checksum of this sig struct */ 30 scp_t syscall; /* entry point to the API */ 31 }; 32 33 enum { 34 API_RSVD = 0, 35 API_GETC, 36 API_PUTC, 37 API_TSTC, 38 API_PUTS, 39 API_RESET, 40 API_GET_SYS_INFO, 41 API_UDELAY, 42 API_GET_TIMER, 43 API_DEV_ENUM, 44 API_DEV_OPEN, 45 API_DEV_CLOSE, 46 API_DEV_READ, 47 API_DEV_WRITE, 48 API_ENV_ENUM, 49 API_ENV_GET, 50 API_ENV_SET, 51 API_DISPLAY_GET_INFO, 52 API_DISPLAY_DRAW_BITMAP, 53 API_DISPLAY_CLEAR, 54 API_MAXCALL 55 }; 56 57 #define MR_ATTR_FLASH 0x0001 58 #define MR_ATTR_DRAM 0x0002 59 #define MR_ATTR_SRAM 0x0003 60 61 struct mem_region { 62 unsigned long start; 63 unsigned long size; 64 int flags; 65 }; 66 67 struct sys_info { 68 unsigned long clk_bus; 69 unsigned long clk_cpu; 70 unsigned long bar; 71 struct mem_region *mr; 72 int mr_no; /* number of memory regions */ 73 }; 74 75 /* 76 * FIXME: Previously this code was: 77 * 78 * #undef CONFIG_SYS_64BIT_LBA 79 * #ifdef CONFIG_SYS_64BIT_LBA 80 * typedef u_int64_t lbasize_t; 81 * #else 82 * typedef unsigned long lbasize_t; 83 * #endif 84 * 85 * But we cannot just undefine CONFIG_SYS_64BIT_LBA, because then in 86 * api/api_storage.c the type signature of lbaint_t will be different if 87 * CONFIG_SYS_64BIT_LBA is enabled for the board, which can result in various 88 * bugs. 89 * So simply define lbasize_t as an unsigned long, since this was what was done 90 * anyway for at least 13 years, but don't undefine CONFIG_SYS_64BIT_LBA. 91 */ 92 typedef unsigned long lbasize_t; 93 94 typedef unsigned long lbastart_t; 95 96 #define DEV_TYP_NONE 0x0000 97 #define DEV_TYP_NET 0x0001 98 99 #define DEV_TYP_STOR 0x0002 100 #define DT_STOR_IDE 0x0010 101 #define DT_STOR_SCSI 0x0020 102 #define DT_STOR_USB 0x0040 103 #define DT_STOR_MMC 0x0080 104 #define DT_STOR_SATA 0x0100 105 106 #define DEV_STA_CLOSED 0x0000 /* invalid, closed */ 107 #define DEV_STA_OPEN 0x0001 /* open i.e. active */ 108 109 struct device_info { 110 int type; 111 void *cookie; 112 113 union { 114 struct { 115 lbasize_t block_count; /* no of blocks */ 116 unsigned long block_size; /* size of one block */ 117 } storage; 118 119 struct { 120 unsigned char hwaddr[6]; 121 } net; 122 } info; 123 #define di_stor info.storage 124 #define di_net info.net 125 126 int state; 127 }; 128 129 #define DISPLAY_TYPE_LCD 0x0001 130 #define DISPLAY_TYPE_VIDEO 0x0002 131 132 struct display_info { 133 int type; 134 /* screen size in pixels */ 135 int pixel_width; 136 int pixel_height; 137 /* screen size in rows and columns of text */ 138 int screen_rows; 139 int screen_cols; 140 }; 141 142 #endif /* _API_PUBLIC_H_ */ 143