Release 4.14 arch/mips/fw/cfe/cfe_api.c

Directory: arch/mips/fw/cfe
/*
 * Copyright (C) 2000, 2001, 2002 Broadcom Corporation
 *
 * 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.
 */

/*
 *
 * Broadcom Common Firmware Environment (CFE)
 *
 * This module contains device function stubs (small routines to
 * call the standard "iocb" interface entry point to CFE).
 * There should be one routine here per iocb function call.
 *
 * Authors:  Mitch Lichtenberg, Chris Demetriou
 */

#include <asm/fw/cfe/cfe_api.h>
#include "cfe_api_int.h"

/* Cast from a native pointer to a cfe_xptr_t and back.  */

#define XPTR_FROM_NATIVE(n)	((cfe_xptr_t) (intptr_t) (n))

#define NATIVE_FROM_XPTR(x)	((void *) (intptr_t) (x))

int cfe_iocb_dispatch(struct cfe_xiocb *xiocb);

/*
 * Declare the dispatch function with args of "intptr_t".
 * This makes sure whatever model we're compiling in
 * puts the pointers in a single register.  For example,
 * combining -mlong64 and -mips1 or -mips2 would lead to
 * trouble, since the handle and IOCB pointer will be
 * passed in two registers each, and CFE expects one.
 */


static int (*cfe_dispfunc) (intptr_t handle, intptr_t xiocb);

static u64 cfe_handle;



int cfe_init(u64 handle, u64 ept)
{
	cfe_dispfunc = NATIVE_FROM_XPTR(ept);
	cfe_handle = handle;
	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 23 92.00% 1 50.00%
Christoph Hellwig 2 8.00% 1 50.00%
Total 25 100.00% 2 100.00%



int cfe_iocb_dispatch(struct cfe_xiocb * xiocb)
{
	if (!cfe_dispfunc)
		return -1;
	return (*cfe_dispfunc) ((intptr_t) cfe_handle, (intptr_t) xiocb);
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 34 94.44% 1 50.00%
Christoph Hellwig 2 5.56% 1 50.00%
Total 36 100.00% 2 100.00%



int cfe_close(int handle)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_DEV_CLOSE;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = handle;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = 0;

	cfe_iocb_dispatch(&xiocb);

	return xiocb.xiocb_status;

}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 51 96.23% 1 50.00%
Christoph Hellwig 2 3.77% 1 50.00%
Total 53 100.00% 2 100.00%



int cfe_cpu_start(int cpu, void (*fn) (void), long sp, long gp, long a1)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_FW_CPUCTL;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = 0;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_cpuctl);
	xiocb.plist.xiocb_cpuctl.cpu_number = cpu;
	xiocb.plist.xiocb_cpuctl.cpu_command = CFE_CPU_CMD_START;
	xiocb.plist.xiocb_cpuctl.gp_val = gp;
	xiocb.plist.xiocb_cpuctl.sp_val = sp;
	xiocb.plist.xiocb_cpuctl.a1_val = a1;
	xiocb.plist.xiocb_cpuctl.start_addr = (long) fn;

	cfe_iocb_dispatch(&xiocb);

	return xiocb.xiocb_status;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 134 97.10% 1 50.00%
Christoph Hellwig 4 2.90% 1 50.00%
Total 138 100.00% 2 100.00%



int cfe_cpu_stop(int cpu)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_FW_CPUCTL;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = 0;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_cpuctl);
	xiocb.plist.xiocb_cpuctl.cpu_number = cpu;
	xiocb.plist.xiocb_cpuctl.cpu_command = CFE_CPU_CMD_STOP;

	cfe_iocb_dispatch(&xiocb);

	return xiocb.xiocb_status;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 73 94.81% 1 50.00%
Christoph Hellwig 4 5.19% 1 50.00%
Total 77 100.00% 2 100.00%



int cfe_enumenv(int idx, char *name, int namelen, char *val, int vallen)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_ENV_SET;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = 0;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_envbuf);
	xiocb.plist.xiocb_envbuf.enum_idx = idx;
	xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name);
	xiocb.plist.xiocb_envbuf.name_length = namelen;
	xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(val);
	xiocb.plist.xiocb_envbuf.val_length = vallen;

	cfe_iocb_dispatch(&xiocb);

	return xiocb.xiocb_status;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 123 96.85% 1 50.00%
Christoph Hellwig 4 3.15% 1 50.00%
Total 127 100.00% 2 100.00%


int

cfe_enummem(int idx, int flags, u64 *start, u64 *length, u64 *type)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_FW_MEMENUM;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = 0;
	xiocb.xiocb_flags = flags;
	xiocb.xiocb_psize = sizeof(struct xiocb_meminfo);
	xiocb.plist.xiocb_meminfo.mi_idx = idx;

	cfe_iocb_dispatch(&xiocb);

	if (xiocb.xiocb_status < 0)
		return xiocb.xiocb_status;

	*start = xiocb.plist.xiocb_meminfo.mi_addr;
	*length = xiocb.plist.xiocb_meminfo.mi_size;
	*type = xiocb.plist.xiocb_meminfo.mi_type;

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 119 94.44% 1 50.00%
Christoph Hellwig 7 5.56% 1 50.00%
Total 126 100.00% 2 100.00%



int cfe_exit(int warm, int status)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_FW_RESTART;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = 0;
	xiocb.xiocb_flags = warm ? CFE_FLG_WARMSTART : 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_exitstat);
	xiocb.plist.xiocb_exitstat.status = status;

	cfe_iocb_dispatch(&xiocb);

	return xiocb.xiocb_status;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 70 94.59% 1 50.00%
Christoph Hellwig 4 5.41% 1 50.00%
Total 74 100.00% 2 100.00%



int cfe_flushcache(int flg)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_FW_FLUSHCACHE;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = 0;
	xiocb.xiocb_flags = flg;
	xiocb.xiocb_psize = 0;

	cfe_iocb_dispatch(&xiocb);

	return xiocb.xiocb_status;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 51 96.23% 1 50.00%
Christoph Hellwig 2 3.77% 1 50.00%
Total 53 100.00% 2 100.00%



int cfe_getdevinfo(char *name)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_DEV_GETINFO;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = 0;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_buffer);
	xiocb.plist.xiocb_buffer.buf_offset = 0;
	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(name);
	xiocb.plist.xiocb_buffer.buf_length = strlen(name);

	cfe_iocb_dispatch(&xiocb);

	if (xiocb.xiocb_status < 0)
		return xiocb.xiocb_status;
	return xiocb.plist.xiocb_buffer.buf_ioctlcmd;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 105 94.59% 1 50.00%
Christoph Hellwig 6 5.41% 1 50.00%
Total 111 100.00% 2 100.00%



int cfe_getenv(char *name, char *dest, int destlen)
{
	struct cfe_xiocb xiocb;

	*dest = 0;

	xiocb.xiocb_fcode = CFE_CMD_ENV_GET;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = 0;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_envbuf);
	xiocb.plist.xiocb_envbuf.enum_idx = 0;
	xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name);
	xiocb.plist.xiocb_envbuf.name_length = strlen(name);
	xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(dest);
	xiocb.plist.xiocb_envbuf.val_length = destlen;

	cfe_iocb_dispatch(&xiocb);

	return xiocb.xiocb_status;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 124 96.12% 1 50.00%
Christoph Hellwig 5 3.88% 1 50.00%
Total 129 100.00% 2 100.00%



int cfe_getfwinfo(cfe_fwinfo_t * info)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_FW_GETINFO;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = 0;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_fwinfo);

	cfe_iocb_dispatch(&xiocb);

	if (xiocb.xiocb_status < 0)
		return xiocb.xiocb_status;

	info->fwi_version = xiocb.plist.xiocb_fwinfo.fwi_version;
	info->fwi_totalmem = xiocb.plist.xiocb_fwinfo.fwi_totalmem;
	info->fwi_flags = xiocb.plist.xiocb_fwinfo.fwi_flags;
	info->fwi_boardid = xiocb.plist.xiocb_fwinfo.fwi_boardid;
	info->fwi_bootarea_va = xiocb.plist.xiocb_fwinfo.fwi_bootarea_va;
	info->fwi_bootarea_pa = xiocb.plist.xiocb_fwinfo.fwi_bootarea_pa;
	info->fwi_bootarea_size =
	    xiocb.plist.xiocb_fwinfo.fwi_bootarea_size;
#if 0
	info->fwi_reserved1 = xiocb.plist.xiocb_fwinfo.fwi_reserved1;
        info->fwi_reserved2 = xiocb.plist.xiocb_fwinfo.fwi_reserved2;
        info->fwi_reserved3 = xiocb.plist.xiocb_fwinfo.fwi_reserved3;
#endif

	return 0;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 155 97.48% 1 50.00%
Christoph Hellwig 4 2.52% 1 50.00%
Total 159 100.00% 2 100.00%



int cfe_getstdhandle(int flg)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_DEV_GETHANDLE;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = 0;
	xiocb.xiocb_flags = flg;
	xiocb.xiocb_psize = 0;

	cfe_iocb_dispatch(&xiocb);

	if (xiocb.xiocb_status < 0)
		return xiocb.xiocb_status;
	return xiocb.xiocb_handle;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 64 96.97% 1 50.00%
Christoph Hellwig 2 3.03% 1 50.00%
Total 66 100.00% 2 100.00%


int64_t

cfe_getticks(void)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_FW_GETTIME;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = 0;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_time);
	xiocb.plist.xiocb_time.ticks = 0;

	cfe_iocb_dispatch(&xiocb);

	return xiocb.plist.xiocb_time.ticks;

}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 65 92.86% 1 50.00%
Christoph Hellwig 5 7.14% 1 50.00%
Total 70 100.00% 2 100.00%



int cfe_inpstat(int handle)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_DEV_INPSTAT;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = handle;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_inpstat);
	xiocb.plist.xiocb_inpstat.inp_status = 0;

	cfe_iocb_dispatch(&xiocb);

	if (xiocb.xiocb_status < 0)
		return xiocb.xiocb_status;
	return xiocb.plist.xiocb_inpstat.inp_status;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 80 95.24% 1 50.00%
Christoph Hellwig 4 4.76% 1 50.00%
Total 84 100.00% 2 100.00%


int

cfe_ioctl(int handle, unsigned int ioctlnum, unsigned char *buffer,
	  int length, int *retlen, u64 offset)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_DEV_IOCTL;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = handle;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_buffer);
	xiocb.plist.xiocb_buffer.buf_offset = offset;
	xiocb.plist.xiocb_buffer.buf_ioctlcmd = ioctlnum;
	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer);
	xiocb.plist.xiocb_buffer.buf_length = length;

	cfe_iocb_dispatch(&xiocb);

	if (retlen)
		*retlen = xiocb.plist.xiocb_buffer.buf_retlen;
	return xiocb.xiocb_status;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 129 96.27% 1 50.00%
Christoph Hellwig 5 3.73% 1 50.00%
Total 134 100.00% 2 100.00%



int cfe_open(char *name)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_DEV_OPEN;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = 0;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_buffer);
	xiocb.plist.xiocb_buffer.buf_offset = 0;
	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(name);
	xiocb.plist.xiocb_buffer.buf_length = strlen(name);

	cfe_iocb_dispatch(&xiocb);

	if (xiocb.xiocb_status < 0)
		return xiocb.xiocb_status;
	return xiocb.xiocb_handle;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 102 95.33% 1 50.00%
Christoph Hellwig 5 4.67% 1 50.00%
Total 107 100.00% 2 100.00%



int cfe_read(int handle, unsigned char *buffer, int length)
{
	return cfe_readblk(handle, 0, buffer, length);
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 28 100.00% 1 100.00%
Total 28 100.00% 1 100.00%



int cfe_readblk(int handle, s64 offset, unsigned char *buffer, int length)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_DEV_READ;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = handle;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_buffer);
	xiocb.plist.xiocb_buffer.buf_offset = offset;
	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer);
	xiocb.plist.xiocb_buffer.buf_length = length;

	cfe_iocb_dispatch(&xiocb);

	if (xiocb.xiocb_status < 0)
		return xiocb.xiocb_status;
	return xiocb.plist.xiocb_buffer.buf_retlen;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 112 94.92% 1 50.00%
Christoph Hellwig 6 5.08% 1 50.00%
Total 118 100.00% 2 100.00%



int cfe_setenv(char *name, char *val)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_ENV_SET;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = 0;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_envbuf);
	xiocb.plist.xiocb_envbuf.enum_idx = 0;
	xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name);
	xiocb.plist.xiocb_envbuf.name_length = strlen(name);
	xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(val);
	xiocb.plist.xiocb_envbuf.val_length = strlen(val);

	cfe_iocb_dispatch(&xiocb);

	return xiocb.xiocb_status;
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 118 95.16% 1 50.00%
Christoph Hellwig 6 4.84% 1 50.00%
Total 124 100.00% 2 100.00%



int cfe_write(int handle, const char *buffer, int length)
{
	return cfe_writeblk(handle, 0, buffer, length);
}

Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 27 96.43% 1 50.00%
Markos Chandras 1 3.57% 1 50.00%
Total 28 100.00% 2 100.00%



int cfe_writeblk(int handle, s64 offset, const char *buffer, int length)
{
	struct cfe_xiocb xiocb;

	xiocb.xiocb_fcode = CFE_CMD_DEV_WRITE;
	xiocb.xiocb_status = 0;
	xiocb.xiocb_handle = handle;
	xiocb.xiocb_flags = 0;
	xiocb.xiocb_psize = sizeof(struct xiocb_buffer);
	xiocb.plist.xiocb_buffer.buf_offset = offset;
	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer);
	xiocb.plist.xiocb_buffer.buf_length = length;

	cfe_iocb_dispatch(&xiocb);

	if (xiocb.xiocb_status < 0)
		return xiocb.xiocb_status;
	return xiocb.plist.xiocb_buffer.buf_retlen;
}
Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 111 94.07% 1 33.33%
Christoph Hellwig 6 5.08% 1 33.33%
Markos Chandras 1 0.85% 1 33.33%
Total 118 100.00% 3 100.00%

Overall Contributors
Person Tokens Prop Commits CommitProp
Ralf Bächle 1944 95.48% 1 25.00%
Christoph Hellwig 89 4.37% 1 25.00%
Markos Chandras 2 0.10% 1 25.00%
Aurelien Jarno 1 0.05% 1 25.00%
Total 2036 100.00% 4 100.00%
Directory: arch/mips/fw/cfe

Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.
Person	Tokens	Prop	Commits	CommitProp
Ralf Bächle	23	92.00%	1	50.00%
Christoph Hellwig	2	8.00%	1	50.00%
Total	25	100.00%	2	100.00%
cregit-Linux how code gets into the kernel

Release 4.14 arch/mips/fw/cfe/cfe_api.c

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