mbed-dev_spine - mbed library sources. Supersedes mbed-src.

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Ben Katz / mbed-dev_spine

mbed library sources. Supersedes mbed-src.

Dependents: SPIne CH_Communicatuin_Test CH_Communicatuin_Test2 MCP_SPIne ... more

Fork of mbed-dev-f303 by Ben Katz

platform/mbed_semihost_api.c@179:97f825502e2a, 2018-05-02 (annotated)

Committer:: benkatz
Date:: Wed May 02 18:08:16 2018 +0000
Revision:: 179:97f825502e2a
Parent:: 162:e13f6fdb2ac4

Who changed what in which revision?

User	Revision	Line number	New contents of line
<>	149:156823d33999	1	/* mbed Microcontroller Library
<>	149:156823d33999	2	* Copyright (c) 2006-2013 ARM Limited
<>	149:156823d33999	3	*
<>	149:156823d33999	4	* Licensed under the Apache License, Version 2.0 (the "License");
<>	149:156823d33999	5	* you may not use this file except in compliance with the License.
<>	149:156823d33999	6	* You may obtain a copy of the License at
<>	149:156823d33999	7	*
<>	149:156823d33999	8	* http://www.apache.org/licenses/LICENSE-2.0
<>	149:156823d33999	9	*
<>	149:156823d33999	10	* Unless required by applicable law or agreed to in writing, software
<>	149:156823d33999	11	* distributed under the License is distributed on an "AS IS" BASIS,
<>	149:156823d33999	12	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
<>	149:156823d33999	13	* See the License for the specific language governing permissions and
<>	149:156823d33999	14	* limitations under the License.
<>	149:156823d33999	15	*/
<>	149:156823d33999	16	#include "cmsis.h"
<>	160:d5399cc887bb	17	#include "platform/mbed_semihost_api.h"
<>	149:156823d33999	18
<>	149:156823d33999	19	#include <stdint.h>
<>	149:156823d33999	20	#include <string.h>
<>	149:156823d33999	21
<>	149:156823d33999	22	#if DEVICE_SEMIHOST
<>	149:156823d33999	23
<>	149:156823d33999	24	// ARM Semihosting Commands
<>	149:156823d33999	25	#define SYS_OPEN (0x1)
<>	149:156823d33999	26	#define SYS_CLOSE (0x2)
<>	149:156823d33999	27	#define SYS_WRITE (0x5)
<>	149:156823d33999	28	#define SYS_READ (0x6)
<>	149:156823d33999	29	#define SYS_ISTTY (0x9)
<>	149:156823d33999	30	#define SYS_SEEK (0xa)
<>	149:156823d33999	31	#define SYS_ENSURE (0xb)
<>	149:156823d33999	32	#define SYS_FLEN (0xc)
<>	149:156823d33999	33	#define SYS_REMOVE (0xe)
<>	149:156823d33999	34	#define SYS_RENAME (0xf)
<>	149:156823d33999	35	#define SYS_EXIT (0x18)
<>	149:156823d33999	36
<>	149:156823d33999	37	// mbed Semihosting Commands
<>	149:156823d33999	38	#define RESERVED_FOR_USER_APPLICATIONS (0x100) // 0x100 - 0x1ff
<>	149:156823d33999	39	#define USR_XFFIND (RESERVED_FOR_USER_APPLICATIONS + 0)
<>	149:156823d33999	40	#define USR_UID (RESERVED_FOR_USER_APPLICATIONS + 1)
<>	149:156823d33999	41	#define USR_RESET (RESERVED_FOR_USER_APPLICATIONS + 2)
<>	149:156823d33999	42	#define USR_VBUS (RESERVED_FOR_USER_APPLICATIONS + 3)
<>	149:156823d33999	43	#define USR_POWERDOWN (RESERVED_FOR_USER_APPLICATIONS + 4)
<>	149:156823d33999	44	#define USR_DISABLEDEBUG (RESERVED_FOR_USER_APPLICATIONS + 5)
<>	149:156823d33999	45
<>	149:156823d33999	46	#if DEVICE_LOCALFILESYSTEM
<>	149:156823d33999	47	FILEHANDLE semihost_open(const char* name, int openmode) {
<>	149:156823d33999	48	uint32_t args[3];
<>	149:156823d33999	49	args[0] = (uint32_t)name;
<>	149:156823d33999	50	args[1] = (uint32_t)openmode;
<>	149:156823d33999	51	args[2] = (uint32_t)strlen(name);
<>	149:156823d33999	52	return __semihost(SYS_OPEN, args);
<>	149:156823d33999	53	}
<>	149:156823d33999	54
<>	149:156823d33999	55	int semihost_close(FILEHANDLE fh) {
<>	149:156823d33999	56	return __semihost(SYS_CLOSE, &fh);
<>	149:156823d33999	57	}
<>	149:156823d33999	58
<>	149:156823d33999	59	int semihost_write(FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode) {
<>	149:156823d33999	60	if (length == 0) return 0;
<>	149:156823d33999	61
<>	149:156823d33999	62	uint32_t args[3];
<>	149:156823d33999	63	args[0] = (uint32_t)fh;
<>	149:156823d33999	64	args[1] = (uint32_t)buffer;
<>	149:156823d33999	65	args[2] = (uint32_t)length;
<>	149:156823d33999	66	return __semihost(SYS_WRITE, args);
<>	149:156823d33999	67	}
<>	149:156823d33999	68
<>	149:156823d33999	69	int semihost_read(FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode) {
<>	149:156823d33999	70	uint32_t args[3];
<>	149:156823d33999	71	args[0] = (uint32_t)fh;
<>	149:156823d33999	72	args[1] = (uint32_t)buffer;
<>	149:156823d33999	73	args[2] = (uint32_t)length;
<>	149:156823d33999	74	return __semihost(SYS_READ, args);
<>	149:156823d33999	75	}
<>	149:156823d33999	76
<>	149:156823d33999	77	int semihost_istty(FILEHANDLE fh) {
<>	149:156823d33999	78	return __semihost(SYS_ISTTY, &fh);
<>	149:156823d33999	79	}
<>	149:156823d33999	80
<>	149:156823d33999	81	int semihost_seek(FILEHANDLE fh, long position) {
<>	149:156823d33999	82	uint32_t args[2];
<>	149:156823d33999	83	args[0] = (uint32_t)fh;
<>	149:156823d33999	84	args[1] = (uint32_t)position;
<>	149:156823d33999	85	return __semihost(SYS_SEEK, args);
<>	149:156823d33999	86	}
<>	149:156823d33999	87
<>	149:156823d33999	88	int semihost_ensure(FILEHANDLE fh) {
<>	149:156823d33999	89	return __semihost(SYS_ENSURE, &fh);
<>	149:156823d33999	90	}
<>	149:156823d33999	91
<>	149:156823d33999	92	long semihost_flen(FILEHANDLE fh) {
<>	149:156823d33999	93	return __semihost(SYS_FLEN, &fh);
<>	149:156823d33999	94	}
<>	149:156823d33999	95
<>	149:156823d33999	96	int semihost_remove(const char *name) {
<>	149:156823d33999	97	uint32_t args[2];
<>	149:156823d33999	98	args[0] = (uint32_t)name;
<>	149:156823d33999	99	args[1] = (uint32_t)strlen(name);
<>	149:156823d33999	100	return __semihost(SYS_REMOVE, args);
<>	149:156823d33999	101	}
<>	149:156823d33999	102
<>	149:156823d33999	103	int semihost_rename(const char old_name, const char new_name) {
<>	149:156823d33999	104	uint32_t args[4];
<>	149:156823d33999	105	args[0] = (uint32_t)old_name;
<>	149:156823d33999	106	args[1] = (uint32_t)strlen(old_name);
<>	149:156823d33999	107	args[0] = (uint32_t)new_name;
<>	149:156823d33999	108	args[1] = (uint32_t)strlen(new_name);
<>	149:156823d33999	109	return __semihost(SYS_RENAME, args);
<>	149:156823d33999	110	}
<>	149:156823d33999	111	#endif
<>	149:156823d33999	112
<>	149:156823d33999	113	int semihost_exit(void) {
<>	149:156823d33999	114	uint32_t args[4];
<>	149:156823d33999	115	return __semihost(SYS_EXIT, args);
<>	149:156823d33999	116	}
<>	149:156823d33999	117
<>	149:156823d33999	118	int semihost_uid(char *uid) {
<>	149:156823d33999	119	uint32_t args[2];
<>	149:156823d33999	120	args[0] = (uint32_t)uid;
<>	149:156823d33999	121	args[1] = DEVICE_ID_LENGTH + 1;
<>	149:156823d33999	122	return __semihost(USR_UID, &args);
<>	149:156823d33999	123	}
<>	149:156823d33999	124
<>	149:156823d33999	125	int semihost_reset(void) {
<>	149:156823d33999	126	// Does not normally return, however if used with older firmware versions
<>	149:156823d33999	127	// that do not support this call it will return -1.
<>	149:156823d33999	128	return __semihost(USR_RESET, NULL);
<>	149:156823d33999	129	}
<>	149:156823d33999	130
<>	149:156823d33999	131	int semihost_vbus(void) {
<>	149:156823d33999	132	return __semihost(USR_VBUS, NULL);
<>	149:156823d33999	133	}
<>	149:156823d33999	134
<>	149:156823d33999	135	int semihost_powerdown(void) {
<>	149:156823d33999	136	return __semihost(USR_POWERDOWN, NULL);
<>	149:156823d33999	137	}
<>	149:156823d33999	138
<>	149:156823d33999	139	#if DEVICE_DEBUG_AWARENESS
<>	149:156823d33999	140
<>	149:156823d33999	141	int semihost_connected(void) {
<>	149:156823d33999	142	return (CoreDebug->DHCSR & CoreDebug_DHCSR_C_DEBUGEN_Msk) ? 1 : 0;
<>	149:156823d33999	143	}
<>	149:156823d33999	144
<>	149:156823d33999	145	#else
<>	149:156823d33999	146	// These processors cannot know if the interface is connect, assume so:
<>	149:156823d33999	147	static int is_debugger_attached = 1;
<>	149:156823d33999	148
<>	149:156823d33999	149	int semihost_connected(void) {
<>	149:156823d33999	150	return is_debugger_attached;
<>	149:156823d33999	151	}
<>	149:156823d33999	152	#endif
<>	149:156823d33999	153
<>	149:156823d33999	154	int semihost_disabledebug(void) {
<>	162:e13f6fdb2ac4	155	uint32_t args[1];
<>	149:156823d33999	156	#if !(DEVICE_DEBUG_AWARENESS)
<>	149:156823d33999	157	is_debugger_attached = 0;
<>	149:156823d33999	158	#endif
<>	162:e13f6fdb2ac4	159	return __semihost(USR_DISABLEDEBUG, &args);
<>	149:156823d33999	160	}
<>	149:156823d33999	161
<>	149:156823d33999	162	#endif
<>	149:156823d33999	163

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Type:	Library
Created:	02 May 2018
Imports:	22
Forks:	0
Commits:	180
Dependents:	11
Dependencies:	0
Followers:	9

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platform/mbed_semihost_api.c@179:97f825502e2a, 2018-05-02 (annotated)

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