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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
420 lines
10 KiB
C
420 lines
10 KiB
C
// 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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#if 0
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info->fwi_reserved1 = xiocb.plist.xiocb_fwinfo.fwi_reserved1;
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info->fwi_reserved2 = xiocb.plist.xiocb_fwinfo.fwi_reserved2;
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info->fwi_reserved3 = xiocb.plist.xiocb_fwinfo.fwi_reserved3;
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#endif
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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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