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/arch/mips/sibyte/cfe/cfe_api.c

https://bitbucket.org/evzijst/gittest
C | 502 lines | 371 code | 92 blank | 39 comment | 34 complexity | 9450202822259110c63aa04a37e25840 MD5 | raw file
  1/*
  2 * Copyright (C) 2000, 2001, 2002 Broadcom Corporation
  3 *
  4 * This program is free software; you can redistribute it and/or
  5 * modify it under the terms of the GNU General Public License
  6 * as published by the Free Software Foundation; either version 2
  7 * of the License, or (at your option) any later version.
  8 *
  9 * This program is distributed in the hope that it will be useful,
 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 12 * GNU General Public License for more details.
 13 *
 14 * You should have received a copy of the GNU General Public License
 15 * along with this program; if not, write to the Free Software
 16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 17 */
 18
 19/*  *********************************************************************
 20    *
 21    *  Broadcom Common Firmware Environment (CFE)
 22    *
 23    *  Device Function stubs			File: cfe_api.c
 24    *
 25    *  This module contains device function stubs (small routines to
 26    *  call the standard "iocb" interface entry point to CFE).
 27    *  There should be one routine here per iocb function call.
 28    *
 29    *  Authors:  Mitch Lichtenberg, Chris Demetriou
 30    *
 31    ********************************************************************* */
 32
 33#include "cfe_api.h"
 34#include "cfe_api_int.h"
 35
 36/* Cast from a native pointer to a cfe_xptr_t and back.	 */
 37#define XPTR_FROM_NATIVE(n)	((cfe_xptr_t) (intptr_t) (n))
 38#define NATIVE_FROM_XPTR(x)	((void *) (intptr_t) (x))
 39
 40#ifdef CFE_API_IMPL_NAMESPACE
 41#define cfe_iocb_dispatch(a)		__cfe_iocb_dispatch(a)
 42#endif
 43int cfe_iocb_dispatch(cfe_xiocb_t * xiocb);
 44
 45#if defined(CFE_API_common) || defined(CFE_API_ALL)
 46/*
 47 * Declare the dispatch function with args of "intptr_t".
 48 * This makes sure whatever model we're compiling in
 49 * puts the pointers in a single register.  For example,
 50 * combining -mlong64 and -mips1 or -mips2 would lead to
 51 * trouble, since the handle and IOCB pointer will be
 52 * passed in two registers each, and CFE expects one.
 53 */
 54
 55static int (*cfe_dispfunc) (intptr_t handle, intptr_t xiocb) = 0;
 56static cfe_xuint_t cfe_handle = 0;
 57
 58int cfe_init(cfe_xuint_t handle, cfe_xuint_t ept)
 59{
 60	cfe_dispfunc = NATIVE_FROM_XPTR(ept);
 61	cfe_handle = handle;
 62	return 0;
 63}
 64
 65int cfe_iocb_dispatch(cfe_xiocb_t * xiocb)
 66{
 67	if (!cfe_dispfunc)
 68		return -1;
 69	return (*cfe_dispfunc) ((intptr_t) cfe_handle, (intptr_t) xiocb);
 70}
 71#endif				/* CFE_API_common || CFE_API_ALL */
 72
 73#if defined(CFE_API_close) || defined(CFE_API_ALL)
 74int cfe_close(int handle)
 75{
 76	cfe_xiocb_t xiocb;
 77
 78	xiocb.xiocb_fcode = CFE_CMD_DEV_CLOSE;
 79	xiocb.xiocb_status = 0;
 80	xiocb.xiocb_handle = handle;
 81	xiocb.xiocb_flags = 0;
 82	xiocb.xiocb_psize = 0;
 83
 84	cfe_iocb_dispatch(&xiocb);
 85
 86	return xiocb.xiocb_status;
 87
 88}
 89#endif				/* CFE_API_close || CFE_API_ALL */
 90
 91#if defined(CFE_API_cpu_start) || defined(CFE_API_ALL)
 92int cfe_cpu_start(int cpu, void (*fn) (void), long sp, long gp, long a1)
 93{
 94	cfe_xiocb_t xiocb;
 95
 96	xiocb.xiocb_fcode = CFE_CMD_FW_CPUCTL;
 97	xiocb.xiocb_status = 0;
 98	xiocb.xiocb_handle = 0;
 99	xiocb.xiocb_flags = 0;
100	xiocb.xiocb_psize = sizeof(xiocb_cpuctl_t);
101	xiocb.plist.xiocb_cpuctl.cpu_number = cpu;
102	xiocb.plist.xiocb_cpuctl.cpu_command = CFE_CPU_CMD_START;
103	xiocb.plist.xiocb_cpuctl.gp_val = gp;
104	xiocb.plist.xiocb_cpuctl.sp_val = sp;
105	xiocb.plist.xiocb_cpuctl.a1_val = a1;
106	xiocb.plist.xiocb_cpuctl.start_addr = (long) fn;
107
108	cfe_iocb_dispatch(&xiocb);
109
110	return xiocb.xiocb_status;
111}
112#endif				/* CFE_API_cpu_start || CFE_API_ALL */
113
114#if defined(CFE_API_cpu_stop) || defined(CFE_API_ALL)
115int cfe_cpu_stop(int cpu)
116{
117	cfe_xiocb_t xiocb;
118
119	xiocb.xiocb_fcode = CFE_CMD_FW_CPUCTL;
120	xiocb.xiocb_status = 0;
121	xiocb.xiocb_handle = 0;
122	xiocb.xiocb_flags = 0;
123	xiocb.xiocb_psize = sizeof(xiocb_cpuctl_t);
124	xiocb.plist.xiocb_cpuctl.cpu_number = cpu;
125	xiocb.plist.xiocb_cpuctl.cpu_command = CFE_CPU_CMD_STOP;
126
127	cfe_iocb_dispatch(&xiocb);
128
129	return xiocb.xiocb_status;
130}
131#endif				/* CFE_API_cpu_stop || CFE_API_ALL */
132
133#if defined(CFE_API_enumenv) || defined(CFE_API_ALL)
134int cfe_enumenv(int idx, char *name, int namelen, char *val, int vallen)
135{
136	cfe_xiocb_t xiocb;
137
138	xiocb.xiocb_fcode = CFE_CMD_ENV_SET;
139	xiocb.xiocb_status = 0;
140	xiocb.xiocb_handle = 0;
141	xiocb.xiocb_flags = 0;
142	xiocb.xiocb_psize = sizeof(xiocb_envbuf_t);
143	xiocb.plist.xiocb_envbuf.enum_idx = idx;
144	xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name);
145	xiocb.plist.xiocb_envbuf.name_length = namelen;
146	xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(val);
147	xiocb.plist.xiocb_envbuf.val_length = vallen;
148
149	cfe_iocb_dispatch(&xiocb);
150
151	return xiocb.xiocb_status;
152}
153#endif				/* CFE_API_enumenv || CFE_API_ALL */
154
155#if defined(CFE_API_enummem) || defined(CFE_API_ALL)
156int
157cfe_enummem(int idx, int flags, cfe_xuint_t * start, cfe_xuint_t * length,
158	    cfe_xuint_t * type)
159{
160	cfe_xiocb_t xiocb;
161
162	xiocb.xiocb_fcode = CFE_CMD_FW_MEMENUM;
163	xiocb.xiocb_status = 0;
164	xiocb.xiocb_handle = 0;
165	xiocb.xiocb_flags = flags;
166	xiocb.xiocb_psize = sizeof(xiocb_meminfo_t);
167	xiocb.plist.xiocb_meminfo.mi_idx = idx;
168
169	cfe_iocb_dispatch(&xiocb);
170
171	if (xiocb.xiocb_status < 0)
172		return xiocb.xiocb_status;
173
174	*start = xiocb.plist.xiocb_meminfo.mi_addr;
175	*length = xiocb.plist.xiocb_meminfo.mi_size;
176	*type = xiocb.plist.xiocb_meminfo.mi_type;
177
178	return 0;
179}
180#endif				/* CFE_API_enummem || CFE_API_ALL */
181
182#if defined(CFE_API_exit) || defined(CFE_API_ALL)
183int cfe_exit(int warm, int status)
184{
185	cfe_xiocb_t xiocb;
186
187	xiocb.xiocb_fcode = CFE_CMD_FW_RESTART;
188	xiocb.xiocb_status = 0;
189	xiocb.xiocb_handle = 0;
190	xiocb.xiocb_flags = warm ? CFE_FLG_WARMSTART : 0;
191	xiocb.xiocb_psize = sizeof(xiocb_exitstat_t);
192	xiocb.plist.xiocb_exitstat.status = status;
193
194	cfe_iocb_dispatch(&xiocb);
195
196	return xiocb.xiocb_status;
197}
198#endif				/* CFE_API_exit || CFE_API_ALL */
199
200#if defined(CFE_API_flushcache) || defined(CFE_API_ALL)
201int cfe_flushcache(int flg)
202{
203	cfe_xiocb_t xiocb;
204
205	xiocb.xiocb_fcode = CFE_CMD_FW_FLUSHCACHE;
206	xiocb.xiocb_status = 0;
207	xiocb.xiocb_handle = 0;
208	xiocb.xiocb_flags = flg;
209	xiocb.xiocb_psize = 0;
210
211	cfe_iocb_dispatch(&xiocb);
212
213	return xiocb.xiocb_status;
214}
215#endif				/* CFE_API_flushcache || CFE_API_ALL */
216
217#if defined(CFE_API_getdevinfo) || defined(CFE_API_ALL)
218int cfe_getdevinfo(char *name)
219{
220	cfe_xiocb_t xiocb;
221
222	xiocb.xiocb_fcode = CFE_CMD_DEV_GETINFO;
223	xiocb.xiocb_status = 0;
224	xiocb.xiocb_handle = 0;
225	xiocb.xiocb_flags = 0;
226	xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
227	xiocb.plist.xiocb_buffer.buf_offset = 0;
228	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(name);
229	xiocb.plist.xiocb_buffer.buf_length = cfe_strlen(name);
230
231	cfe_iocb_dispatch(&xiocb);
232
233	if (xiocb.xiocb_status < 0)
234		return xiocb.xiocb_status;
235	return xiocb.plist.xiocb_buffer.buf_devflags;
236}
237#endif				/* CFE_API_getdevinfo || CFE_API_ALL */
238
239#if defined(CFE_API_getenv) || defined(CFE_API_ALL)
240int cfe_getenv(char *name, char *dest, int destlen)
241{
242	cfe_xiocb_t xiocb;
243
244	*dest = 0;
245
246	xiocb.xiocb_fcode = CFE_CMD_ENV_GET;
247	xiocb.xiocb_status = 0;
248	xiocb.xiocb_handle = 0;
249	xiocb.xiocb_flags = 0;
250	xiocb.xiocb_psize = sizeof(xiocb_envbuf_t);
251	xiocb.plist.xiocb_envbuf.enum_idx = 0;
252	xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name);
253	xiocb.plist.xiocb_envbuf.name_length = cfe_strlen(name);
254	xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(dest);
255	xiocb.plist.xiocb_envbuf.val_length = destlen;
256
257	cfe_iocb_dispatch(&xiocb);
258
259	return xiocb.xiocb_status;
260}
261#endif				/* CFE_API_getenv || CFE_API_ALL */
262
263#if defined(CFE_API_getfwinfo) || defined(CFE_API_ALL)
264int cfe_getfwinfo(cfe_fwinfo_t * info)
265{
266	cfe_xiocb_t xiocb;
267
268	xiocb.xiocb_fcode = CFE_CMD_FW_GETINFO;
269	xiocb.xiocb_status = 0;
270	xiocb.xiocb_handle = 0;
271	xiocb.xiocb_flags = 0;
272	xiocb.xiocb_psize = sizeof(xiocb_fwinfo_t);
273
274	cfe_iocb_dispatch(&xiocb);
275
276	if (xiocb.xiocb_status < 0)
277		return xiocb.xiocb_status;
278
279	info->fwi_version = xiocb.plist.xiocb_fwinfo.fwi_version;
280	info->fwi_totalmem = xiocb.plist.xiocb_fwinfo.fwi_totalmem;
281	info->fwi_flags = xiocb.plist.xiocb_fwinfo.fwi_flags;
282	info->fwi_boardid = xiocb.plist.xiocb_fwinfo.fwi_boardid;
283	info->fwi_bootarea_va = xiocb.plist.xiocb_fwinfo.fwi_bootarea_va;
284	info->fwi_bootarea_pa = xiocb.plist.xiocb_fwinfo.fwi_bootarea_pa;
285	info->fwi_bootarea_size =
286	    xiocb.plist.xiocb_fwinfo.fwi_bootarea_size;
287#if 0
288	info->fwi_reserved1 = xiocb.plist.xiocb_fwinfo.fwi_reserved1;
289	info->fwi_reserved2 = xiocb.plist.xiocb_fwinfo.fwi_reserved2;
290	info->fwi_reserved3 = xiocb.plist.xiocb_fwinfo.fwi_reserved3;
291#endif
292
293	return 0;
294}
295#endif				/* CFE_API_getfwinfo || CFE_API_ALL */
296
297#if defined(CFE_API_getstdhandle) || defined(CFE_API_ALL)
298int cfe_getstdhandle(int flg)
299{
300	cfe_xiocb_t xiocb;
301
302	xiocb.xiocb_fcode = CFE_CMD_DEV_GETHANDLE;
303	xiocb.xiocb_status = 0;
304	xiocb.xiocb_handle = 0;
305	xiocb.xiocb_flags = flg;
306	xiocb.xiocb_psize = 0;
307
308	cfe_iocb_dispatch(&xiocb);
309
310	if (xiocb.xiocb_status < 0)
311		return xiocb.xiocb_status;
312	return xiocb.xiocb_handle;
313}
314#endif				/* CFE_API_getstdhandle || CFE_API_ALL */
315
316#if defined(CFE_API_getticks) || defined(CFE_API_ALL)
317int64_t
318#ifdef CFE_API_IMPL_NAMESPACE
319__cfe_getticks(void)
320#else
321cfe_getticks(void)
322#endif
323{
324	cfe_xiocb_t xiocb;
325
326	xiocb.xiocb_fcode = CFE_CMD_FW_GETTIME;
327	xiocb.xiocb_status = 0;
328	xiocb.xiocb_handle = 0;
329	xiocb.xiocb_flags = 0;
330	xiocb.xiocb_psize = sizeof(xiocb_time_t);
331	xiocb.plist.xiocb_time.ticks = 0;
332
333	cfe_iocb_dispatch(&xiocb);
334
335	return xiocb.plist.xiocb_time.ticks;
336
337}
338#endif				/* CFE_API_getticks || CFE_API_ALL */
339
340#if defined(CFE_API_inpstat) || defined(CFE_API_ALL)
341int cfe_inpstat(int handle)
342{
343	cfe_xiocb_t xiocb;
344
345	xiocb.xiocb_fcode = CFE_CMD_DEV_INPSTAT;
346	xiocb.xiocb_status = 0;
347	xiocb.xiocb_handle = handle;
348	xiocb.xiocb_flags = 0;
349	xiocb.xiocb_psize = sizeof(xiocb_inpstat_t);
350	xiocb.plist.xiocb_inpstat.inp_status = 0;
351
352	cfe_iocb_dispatch(&xiocb);
353
354	if (xiocb.xiocb_status < 0)
355		return xiocb.xiocb_status;
356	return xiocb.plist.xiocb_inpstat.inp_status;
357}
358#endif				/* CFE_API_inpstat || CFE_API_ALL */
359
360#if defined(CFE_API_ioctl) || defined(CFE_API_ALL)
361int
362cfe_ioctl(int handle, unsigned int ioctlnum, unsigned char *buffer,
363	  int length, int *retlen, cfe_xuint_t offset)
364{
365	cfe_xiocb_t xiocb;
366
367	xiocb.xiocb_fcode = CFE_CMD_DEV_IOCTL;
368	xiocb.xiocb_status = 0;
369	xiocb.xiocb_handle = handle;
370	xiocb.xiocb_flags = 0;
371	xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
372	xiocb.plist.xiocb_buffer.buf_offset = offset;
373	xiocb.plist.xiocb_buffer.buf_ioctlcmd = ioctlnum;
374	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer);
375	xiocb.plist.xiocb_buffer.buf_length = length;
376
377	cfe_iocb_dispatch(&xiocb);
378
379	if (retlen)
380		*retlen = xiocb.plist.xiocb_buffer.buf_retlen;
381	return xiocb.xiocb_status;
382}
383#endif				/* CFE_API_ioctl || CFE_API_ALL */
384
385#if defined(CFE_API_open) || defined(CFE_API_ALL)
386int cfe_open(char *name)
387{
388	cfe_xiocb_t xiocb;
389
390	xiocb.xiocb_fcode = CFE_CMD_DEV_OPEN;
391	xiocb.xiocb_status = 0;
392	xiocb.xiocb_handle = 0;
393	xiocb.xiocb_flags = 0;
394	xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
395	xiocb.plist.xiocb_buffer.buf_offset = 0;
396	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(name);
397	xiocb.plist.xiocb_buffer.buf_length = cfe_strlen(name);
398
399	cfe_iocb_dispatch(&xiocb);
400
401	if (xiocb.xiocb_status < 0)
402		return xiocb.xiocb_status;
403	return xiocb.xiocb_handle;
404}
405#endif				/* CFE_API_open || CFE_API_ALL */
406
407#if defined(CFE_API_read) || defined(CFE_API_ALL)
408int cfe_read(int handle, unsigned char *buffer, int length)
409{
410	return cfe_readblk(handle, 0, buffer, length);
411}
412#endif				/* CFE_API_read || CFE_API_ALL */
413
414#if defined(CFE_API_readblk) || defined(CFE_API_ALL)
415int
416cfe_readblk(int handle, cfe_xint_t offset, unsigned char *buffer,
417	    int length)
418{
419	cfe_xiocb_t xiocb;
420
421	xiocb.xiocb_fcode = CFE_CMD_DEV_READ;
422	xiocb.xiocb_status = 0;
423	xiocb.xiocb_handle = handle;
424	xiocb.xiocb_flags = 0;
425	xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
426	xiocb.plist.xiocb_buffer.buf_offset = offset;
427	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer);
428	xiocb.plist.xiocb_buffer.buf_length = length;
429
430	cfe_iocb_dispatch(&xiocb);
431
432	if (xiocb.xiocb_status < 0)
433		return xiocb.xiocb_status;
434	return xiocb.plist.xiocb_buffer.buf_retlen;
435}
436#endif				/* CFE_API_readblk || CFE_API_ALL */
437
438#if defined(CFE_API_setenv) || defined(CFE_API_ALL)
439int cfe_setenv(char *name, char *val)
440{
441	cfe_xiocb_t xiocb;
442
443	xiocb.xiocb_fcode = CFE_CMD_ENV_SET;
444	xiocb.xiocb_status = 0;
445	xiocb.xiocb_handle = 0;
446	xiocb.xiocb_flags = 0;
447	xiocb.xiocb_psize = sizeof(xiocb_envbuf_t);
448	xiocb.plist.xiocb_envbuf.enum_idx = 0;
449	xiocb.plist.xiocb_envbuf.name_ptr = XPTR_FROM_NATIVE(name);
450	xiocb.plist.xiocb_envbuf.name_length = cfe_strlen(name);
451	xiocb.plist.xiocb_envbuf.val_ptr = XPTR_FROM_NATIVE(val);
452	xiocb.plist.xiocb_envbuf.val_length = cfe_strlen(val);
453
454	cfe_iocb_dispatch(&xiocb);
455
456	return xiocb.xiocb_status;
457}
458#endif				/* CFE_API_setenv || CFE_API_ALL */
459
460#if (defined(CFE_API_strlen) || defined(CFE_API_ALL)) \
461    && !defined(CFE_API_STRLEN_CUSTOM)
462int cfe_strlen(char *name)
463{
464	int count = 0;
465
466	while (*name++)
467		count++;
468
469	return count;
470}
471#endif				/* CFE_API_strlen || CFE_API_ALL */
472
473#if defined(CFE_API_write) || defined(CFE_API_ALL)
474int cfe_write(int handle, unsigned char *buffer, int length)
475{
476	return cfe_writeblk(handle, 0, buffer, length);
477}
478#endif				/* CFE_API_write || CFE_API_ALL */
479
480#if defined(CFE_API_writeblk) || defined(CFE_API_ALL)
481int
482cfe_writeblk(int handle, cfe_xint_t offset, unsigned char *buffer,
483	     int length)
484{
485	cfe_xiocb_t xiocb;
486
487	xiocb.xiocb_fcode = CFE_CMD_DEV_WRITE;
488	xiocb.xiocb_status = 0;
489	xiocb.xiocb_handle = handle;
490	xiocb.xiocb_flags = 0;
491	xiocb.xiocb_psize = sizeof(xiocb_buffer_t);
492	xiocb.plist.xiocb_buffer.buf_offset = offset;
493	xiocb.plist.xiocb_buffer.buf_ptr = XPTR_FROM_NATIVE(buffer);
494	xiocb.plist.xiocb_buffer.buf_length = length;
495
496	cfe_iocb_dispatch(&xiocb);
497
498	if (xiocb.xiocb_status < 0)
499		return xiocb.xiocb_status;
500	return xiocb.plist.xiocb_buffer.buf_retlen;
501}
502#endif				/* CFE_API_writeblk || CFE_API_ALL */