Naze32 clone with Frysky receiver
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semihost_api.h 2.6KB

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  1. /* mbed Microcontroller Library
  2. * Copyright (c) 2006-2013 ARM Limited
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License");
  5. * you may not use this file except in compliance with the License.
  6. * You may obtain a copy of the License at
  7. *
  8. * http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. * Unless required by applicable law or agreed to in writing, software
  11. * distributed under the License is distributed on an "AS IS" BASIS,
  12. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. * See the License for the specific language governing permissions and
  14. * limitations under the License.
  15. */
  16. #ifndef MBED_SEMIHOST_H
  17. #define MBED_SEMIHOST_H
  18. #include "device.h"
  19. #include "toolchain.h"
  20. #ifdef __cplusplus
  21. extern "C" {
  22. #endif
  23. #if DEVICE_SEMIHOST
  24. #ifndef __CC_ARM
  25. #if defined(__ICCARM__)
  26. inline int __semihost(int reason, const void *arg) {
  27. return __semihosting(reason, (void*)arg);
  28. }
  29. #else
  30. #ifdef __thumb__
  31. # define AngelSWI 0xAB
  32. # define AngelSWIInsn "bkpt"
  33. # define AngelSWIAsm bkpt
  34. #else
  35. # define AngelSWI 0x123456
  36. # define AngelSWIInsn "swi"
  37. # define AngelSWIAsm swi
  38. #endif
  39. static inline int __semihost(int reason, const void *arg) {
  40. int value;
  41. asm volatile (
  42. "mov r0, %1" "\n\t"
  43. "mov r1, %2" "\n\t"
  44. AngelSWIInsn " %a3" "\n\t"
  45. "mov %0, r0"
  46. : "=r" (value) /* output operands */
  47. : "r" (reason), "r" (arg), "i" (AngelSWI) /* input operands */
  48. : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc" /* list of clobbered registers */
  49. );
  50. return value;
  51. }
  52. #endif
  53. #endif
  54. #if DEVICE_LOCALFILESYSTEM
  55. FILEHANDLE semihost_open(const char* name, int openmode);
  56. int semihost_close (FILEHANDLE fh);
  57. int semihost_read (FILEHANDLE fh, unsigned char* buffer, unsigned int length, int mode);
  58. int semihost_write (FILEHANDLE fh, const unsigned char* buffer, unsigned int length, int mode);
  59. int semihost_ensure(FILEHANDLE fh);
  60. long semihost_flen (FILEHANDLE fh);
  61. int semihost_seek (FILEHANDLE fh, long position);
  62. int semihost_istty (FILEHANDLE fh);
  63. int semihost_remove(const char *name);
  64. int semihost_rename(const char *old_name, const char *new_name);
  65. #endif
  66. int semihost_uid(char *uid);
  67. int semihost_reset(void);
  68. int semihost_vbus(void);
  69. int semihost_powerdown(void);
  70. int semihost_exit(void);
  71. int semihost_connected(void);
  72. int semihost_disabledebug(void);
  73. #endif
  74. #ifdef __cplusplus
  75. }
  76. #endif
  77. #endif