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414 lines
10 KiB
414 lines
10 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright (C) 2000, 2001, 2002 Broadcom Corporation |
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*/ |
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/* |
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* |
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* Broadcom Common Firmware Environment (CFE) |
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* |
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* This module contains device function stubs (small routines to |
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* call the standard "iocb" interface entry point to CFE). |
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* There should be one routine here per iocb function call. |
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* |
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* Authors: Mitch Lichtenberg, Chris Demetriou |
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*/ |
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#include <asm/fw/cfe/cfe_api.h> |
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#include "cfe_api_int.h" |
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/* Cast from a native pointer to a cfe_xptr_t and back. */ |
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#define XPTR_FROM_NATIVE(n) ((cfe_xptr_t) (intptr_t) (n)) |
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#define NATIVE_FROM_XPTR(x) ((void *) (intptr_t) (x)) |
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int cfe_iocb_dispatch(struct cfe_xiocb *xiocb); |
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/* |
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* Declare the dispatch function with args of "intptr_t". |
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* This makes sure whatever model we're compiling in |
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* puts the pointers in a single register. For example, |
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* combining -mlong64 and -mips1 or -mips2 would lead to |
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* trouble, since the handle and IOCB pointer will be |
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* passed in two registers each, and CFE expects one. |
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*/ |
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static int (*cfe_dispfunc) (intptr_t handle, intptr_t xiocb); |
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static u64 cfe_handle; |
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int cfe_init(u64 handle, u64 ept) |
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{ |
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cfe_dispfunc = NATIVE_FROM_XPTR(ept); |
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cfe_handle = handle; |
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return 0; |
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} |
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int cfe_iocb_dispatch(struct cfe_xiocb * xiocb) |
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{ |
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if (!cfe_dispfunc) |
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return -1; |
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return (*cfe_dispfunc) ((intptr_t) cfe_handle, (intptr_t) xiocb); |
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} |
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int cfe_close(int handle) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_DEV_CLOSE; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = handle; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = 0; |
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cfe_iocb_dispatch(&xiocb); |
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return xiocb.xiocb_status; |
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} |
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int cfe_cpu_start(int cpu, void (*fn) (void), long sp, long gp, long a1) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_FW_CPUCTL; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = 0; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_cpuctl); |
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xiocb.plist.xiocb_cpuctl.cpu_number = cpu; |
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xiocb.plist.xiocb_cpuctl.cpu_command = CFE_CPU_CMD_START; |
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xiocb.plist.xiocb_cpuctl.gp_val = gp; |
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xiocb.plist.xiocb_cpuctl.sp_val = sp; |
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xiocb.plist.xiocb_cpuctl.a1_val = a1; |
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xiocb.plist.xiocb_cpuctl.start_addr = (long) fn; |
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cfe_iocb_dispatch(&xiocb); |
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return xiocb.xiocb_status; |
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} |
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int cfe_cpu_stop(int cpu) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_FW_CPUCTL; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = 0; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_cpuctl); |
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xiocb.plist.xiocb_cpuctl.cpu_number = cpu; |
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xiocb.plist.xiocb_cpuctl.cpu_command = CFE_CPU_CMD_STOP; |
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cfe_iocb_dispatch(&xiocb); |
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return xiocb.xiocb_status; |
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} |
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int cfe_enumenv(int idx, char *name, int namelen, char *val, int vallen) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_ENV_SET; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = 0; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_envbuf); |
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xiocb.plist.xiocb_envbuf.enum_idx = idx; |
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xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name); |
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xiocb.plist.xiocb_envbuf.name_length = namelen; |
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xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(val); |
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xiocb.plist.xiocb_envbuf.val_length = vallen; |
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cfe_iocb_dispatch(&xiocb); |
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return xiocb.xiocb_status; |
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} |
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int |
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cfe_enummem(int idx, int flags, u64 *start, u64 *length, u64 *type) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_FW_MEMENUM; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = 0; |
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xiocb.xiocb_flags = flags; |
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xiocb.xiocb_psize = sizeof(struct xiocb_meminfo); |
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xiocb.plist.xiocb_meminfo.mi_idx = idx; |
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cfe_iocb_dispatch(&xiocb); |
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if (xiocb.xiocb_status < 0) |
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return xiocb.xiocb_status; |
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*start = xiocb.plist.xiocb_meminfo.mi_addr; |
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*length = xiocb.plist.xiocb_meminfo.mi_size; |
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*type = xiocb.plist.xiocb_meminfo.mi_type; |
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return 0; |
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} |
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int cfe_exit(int warm, int status) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_FW_RESTART; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = 0; |
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xiocb.xiocb_flags = warm ? CFE_FLG_WARMSTART : 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_exitstat); |
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xiocb.plist.xiocb_exitstat.status = status; |
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cfe_iocb_dispatch(&xiocb); |
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return xiocb.xiocb_status; |
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} |
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int cfe_flushcache(int flg) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_FW_FLUSHCACHE; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = 0; |
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xiocb.xiocb_flags = flg; |
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xiocb.xiocb_psize = 0; |
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cfe_iocb_dispatch(&xiocb); |
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return xiocb.xiocb_status; |
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} |
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int cfe_getdevinfo(char *name) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_DEV_GETINFO; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = 0; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_buffer); |
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xiocb.plist.xiocb_buffer.buf_offset = 0; |
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xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(name); |
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xiocb.plist.xiocb_buffer.buf_length = strlen(name); |
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cfe_iocb_dispatch(&xiocb); |
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if (xiocb.xiocb_status < 0) |
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return xiocb.xiocb_status; |
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return xiocb.plist.xiocb_buffer.buf_ioctlcmd; |
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} |
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int cfe_getenv(char *name, char *dest, int destlen) |
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{ |
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struct cfe_xiocb xiocb; |
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*dest = 0; |
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xiocb.xiocb_fcode = CFE_CMD_ENV_GET; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = 0; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_envbuf); |
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xiocb.plist.xiocb_envbuf.enum_idx = 0; |
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xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name); |
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xiocb.plist.xiocb_envbuf.name_length = strlen(name); |
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xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(dest); |
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xiocb.plist.xiocb_envbuf.val_length = destlen; |
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cfe_iocb_dispatch(&xiocb); |
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return xiocb.xiocb_status; |
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} |
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int cfe_getfwinfo(cfe_fwinfo_t * info) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_FW_GETINFO; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = 0; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_fwinfo); |
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cfe_iocb_dispatch(&xiocb); |
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if (xiocb.xiocb_status < 0) |
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return xiocb.xiocb_status; |
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info->fwi_version = xiocb.plist.xiocb_fwinfo.fwi_version; |
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info->fwi_totalmem = xiocb.plist.xiocb_fwinfo.fwi_totalmem; |
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info->fwi_flags = xiocb.plist.xiocb_fwinfo.fwi_flags; |
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info->fwi_boardid = xiocb.plist.xiocb_fwinfo.fwi_boardid; |
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info->fwi_bootarea_va = xiocb.plist.xiocb_fwinfo.fwi_bootarea_va; |
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info->fwi_bootarea_pa = xiocb.plist.xiocb_fwinfo.fwi_bootarea_pa; |
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info->fwi_bootarea_size = |
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xiocb.plist.xiocb_fwinfo.fwi_bootarea_size; |
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return 0; |
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} |
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int cfe_getstdhandle(int flg) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_DEV_GETHANDLE; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = 0; |
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xiocb.xiocb_flags = flg; |
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xiocb.xiocb_psize = 0; |
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cfe_iocb_dispatch(&xiocb); |
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if (xiocb.xiocb_status < 0) |
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return xiocb.xiocb_status; |
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return xiocb.xiocb_handle; |
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} |
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int64_t |
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cfe_getticks(void) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_FW_GETTIME; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = 0; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_time); |
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xiocb.plist.xiocb_time.ticks = 0; |
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cfe_iocb_dispatch(&xiocb); |
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return xiocb.plist.xiocb_time.ticks; |
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} |
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int cfe_inpstat(int handle) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_DEV_INPSTAT; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = handle; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_inpstat); |
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xiocb.plist.xiocb_inpstat.inp_status = 0; |
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cfe_iocb_dispatch(&xiocb); |
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if (xiocb.xiocb_status < 0) |
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return xiocb.xiocb_status; |
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return xiocb.plist.xiocb_inpstat.inp_status; |
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} |
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int |
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cfe_ioctl(int handle, unsigned int ioctlnum, unsigned char *buffer, |
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int length, int *retlen, u64 offset) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_DEV_IOCTL; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = handle; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_buffer); |
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xiocb.plist.xiocb_buffer.buf_offset = offset; |
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xiocb.plist.xiocb_buffer.buf_ioctlcmd = ioctlnum; |
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xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer); |
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xiocb.plist.xiocb_buffer.buf_length = length; |
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cfe_iocb_dispatch(&xiocb); |
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if (retlen) |
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*retlen = xiocb.plist.xiocb_buffer.buf_retlen; |
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return xiocb.xiocb_status; |
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} |
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int cfe_open(char *name) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_DEV_OPEN; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = 0; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_buffer); |
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xiocb.plist.xiocb_buffer.buf_offset = 0; |
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xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(name); |
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xiocb.plist.xiocb_buffer.buf_length = strlen(name); |
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cfe_iocb_dispatch(&xiocb); |
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if (xiocb.xiocb_status < 0) |
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return xiocb.xiocb_status; |
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return xiocb.xiocb_handle; |
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} |
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int cfe_read(int handle, unsigned char *buffer, int length) |
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{ |
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return cfe_readblk(handle, 0, buffer, length); |
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} |
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int cfe_readblk(int handle, s64 offset, unsigned char *buffer, int length) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_DEV_READ; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = handle; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_buffer); |
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xiocb.plist.xiocb_buffer.buf_offset = offset; |
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xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer); |
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xiocb.plist.xiocb_buffer.buf_length = length; |
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cfe_iocb_dispatch(&xiocb); |
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if (xiocb.xiocb_status < 0) |
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return xiocb.xiocb_status; |
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return xiocb.plist.xiocb_buffer.buf_retlen; |
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} |
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int cfe_setenv(char *name, char *val) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_ENV_SET; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = 0; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_envbuf); |
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xiocb.plist.xiocb_envbuf.enum_idx = 0; |
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xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name); |
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xiocb.plist.xiocb_envbuf.name_length = strlen(name); |
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xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(val); |
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xiocb.plist.xiocb_envbuf.val_length = strlen(val); |
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cfe_iocb_dispatch(&xiocb); |
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return xiocb.xiocb_status; |
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} |
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int cfe_write(int handle, const char *buffer, int length) |
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{ |
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return cfe_writeblk(handle, 0, buffer, length); |
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} |
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int cfe_writeblk(int handle, s64 offset, const char *buffer, int length) |
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{ |
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struct cfe_xiocb xiocb; |
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xiocb.xiocb_fcode = CFE_CMD_DEV_WRITE; |
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xiocb.xiocb_status = 0; |
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xiocb.xiocb_handle = handle; |
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xiocb.xiocb_flags = 0; |
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xiocb.xiocb_psize = sizeof(struct xiocb_buffer); |
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xiocb.plist.xiocb_buffer.buf_offset = offset; |
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xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer); |
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xiocb.plist.xiocb_buffer.buf_length = length; |
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cfe_iocb_dispatch(&xiocb); |
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if (xiocb.xiocb_status < 0) |
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return xiocb.xiocb_status; |
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return xiocb.plist.xiocb_buffer.buf_retlen; |
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}
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