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https://github.com/smaeul/u-boot.git
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500856eb17
This is an API for external (standalone) applications running on top of U-Boot, and is meant to be more extensible and robust than the existing jumptable mechanism. It is similar to UNIX syscall approach. See api/README for more details. Included is the demo application using this new framework (api_examples). Please note this is still an experimental feature, and is turned off by default. Signed-off-by: Rafal Jaworowski <raj@semihalf.com>
103 lines
1.9 KiB
C
103 lines
1.9 KiB
C
#ifndef _API_PUBLIC_H_
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#define _API_PUBLIC_H_
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#define API_EINVAL 1 /* invalid argument(s) */
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#define API_ENODEV 2 /* no device */
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#define API_ENOMEM 3 /* no memory */
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#define API_EBUSY 4 /* busy, occupied etc. */
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#define API_EIO 5 /* I/O error */
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typedef int (*scp_t)(int, int *, ...);
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#define API_SIG_VERSION 1
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#define API_SIG_MAGIC "UBootAPI"
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#define API_SIG_MAGLEN 8
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struct api_signature {
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char magic[API_SIG_MAGLEN]; /* magic string */
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uint16_t version; /* API version */
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uint32_t checksum; /* checksum of this sig struct */
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scp_t syscall; /* entry point to the API */
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};
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enum {
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API_RSVD = 0,
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API_GETC,
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API_PUTC,
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API_TSTC,
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API_PUTS,
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API_RESET,
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API_GET_SYS_INFO,
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API_UDELAY,
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API_GET_TIMER,
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API_DEV_ENUM,
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API_DEV_OPEN,
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API_DEV_CLOSE,
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API_DEV_READ,
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API_DEV_WRITE,
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API_ENV_ENUM,
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API_ENV_GET,
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API_ENV_SET,
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API_MAXCALL
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};
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#define MR_ATTR_FLASH 0x0001
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#define MR_ATTR_DRAM 0x0002
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#define MR_ATTR_SRAM 0x0003
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struct mem_region {
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unsigned long start;
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unsigned long size;
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int flags;
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};
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struct sys_info {
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unsigned long clk_bus;
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unsigned long clk_cpu;
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unsigned long bar;
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struct mem_region *mr;
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int mr_no; /* number of memory regions */
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};
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#undef CFG_64BIT_LBA
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#ifdef CFG_64BIT_LBA
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typedef u_int64_t lbasize_t;
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#else
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typedef unsigned long lbasize_t;
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#endif
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typedef unsigned long lbastart_t;
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#define DEV_TYP_NONE 0x0000
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#define DEV_TYP_NET 0x0001
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#define DEV_TYP_STOR 0x0002
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#define DT_STOR_IDE 0x0010
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#define DT_STOR_SCSI 0x0020
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#define DT_STOR_USB 0x0040
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#define DT_STOR_MMC 0x0080
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#define DEV_STA_CLOSED 0x0000 /* invalid, closed */
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#define DEV_STA_OPEN 0x0001 /* open i.e. active */
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struct device_info {
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int type;
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void *cookie;
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union {
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struct {
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lbasize_t block_count; /* no of blocks */
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unsigned long block_size; /* size of one block */
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} storage;
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struct {
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unsigned char hwaddr[6];
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} net;
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} info;
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#define di_stor info.storage
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#define di_net info.net
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int state;
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};
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#endif /* _API_PUBLIC_H_ */
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