Progmem: removed desktop specific progmem handling

libraries/AP_Progmem/AP_Progmem.h

@@ -4,9 +4,7 @@
 
 #if defined(__AVR__) 
 #include "AP_Progmem_AVR.h"
-#elif defined(DESKTOP_BUILD)
-#include "AP_Progmem_DesktopBuild.h"
-#elif defined(PX4FMU_BUILD)
+#elif defined(PX4FMU_BUILD) || (CONFIG_HAL_BOARD==HAL_BOARD_AVR_SITL)
 #include "AP_Progmem_Identity.h"
 #else
 #error "this build type is unknown"

libraries/AP_Progmem/AP_Progmem_DesktopBuild.h

@@ -1,16 +0,0 @@
-
-#ifndef __AP_PROGMEM_DESKTOP_BUILD_H__
-#define __AP_PROGMEM_DESKTOP_BUILD_H__
-
-#ifndef __AP_PROGMEM_H__
-#error "Do not import AP_Progmem_DesktopBuild.h directly - use AP_Progmem.h"
-#endif // __AP_PROGMEM_H__
-
-/* Inherit AVR definitions for everything else */
-#include "AP_Progmem_AVR.h"
-
-#undef PROGMEM
-#define PROGMEM __attribute__(())
-
-#endif // __AP_PROGMEM_DESKTOP_BUILD_H__
-

libraries/AP_Progmem/AP_Progmem_Identity.h

@@ -3,11 +3,14 @@
 #define __AP_PROGMEM_IDENTITY__
 
 #include <string.h>
+#include <stdint.h>
 
 typedef char prog_char_t;
 typedef char prog_char;
 
 #define PSTR(s) s
+#undef PROGMEM
+#define PROGMEM __attribute__(())
 
 static inline int strcasecmp_P(const char *str1, const prog_char_t *pstr)
 {
@@ -35,6 +38,41 @@ static inline char *strncpy_P(char *buffer, const prog_char_t *pstr, size_t buff
     return strncpy(buffer, pstr, buffer_size);
 }
 
+static inline size_t strnlen_P(const prog_char_t *str, size_t size)
+{
+	return strnlen(str, size);
+}
+
+static inline int strncmp_P(const prog_char_t *str1, const prog_char_t *str2, size_t n)
+{
+	return strncmp(str1, str2, n);
+}
+
+
+// read something the size of a byte
+static inline uint8_t pgm_read_byte(const void *s) {
+	return *(const uint8_t *)s;
+}
+
+// read something the size of a byte, far version
+static inline uint8_t pgm_read_byte_far(const void *s) {
+	return *(const uint8_t *)s;
+}
+
+// read something the size of a word
+static inline uint16_t pgm_read_word(const void *s) {
+	return *(const uint16_t *)s;
+}
+
+// read something the size of a dword
+static inline uint32_t pgm_read_dword(const void *s) {
+	return *(const uint32_t *)s;
+}
+
+// read something the size of a float
+static inline float pgm_read_float(const void *s) {
+	return *(const float *)s;
+}
 
 // read something the size of a pointer. This makes the menu code more
 // portable