amiro-blt / Target / Source / AMiRo / amiroblt.h @ 72294488
History | View | Annotate | Download (13.361 KB)
| 1 |
/**
|
|---|---|
| 2 |
* @file interfaces.h
|
| 3 |
* @brief Interfaces to access and interpret information of the bootloader by an operating system.
|
| 4 |
*
|
| 5 |
* @addtogroup AMiRo-BLT
|
| 6 |
* @details Data structures and constants to interfere with the bootloader form an operating system.
|
| 7 |
* @{
|
| 8 |
*/
|
| 9 |
|
| 10 |
#ifndef _AMIROBLT_H_
|
| 11 |
#define _AMIROBLT_H_
|
| 12 |
|
| 13 |
#include <stdint.h> |
| 14 |
|
| 15 |
/*============================================================================*/
|
| 16 |
/**
|
| 17 |
* @defgroup AMiRo-BLT-IF AMiRo Bootloader Interface
|
| 18 |
* @details This interface can be used to interface the AMiRo bootloader from an operating system.
|
| 19 |
*
|
| 20 |
* @{
|
| 21 |
*/
|
| 22 |
/*============================================================================*/
|
| 23 |
|
| 24 |
/*============================================================================*/
|
| 25 |
/**
|
| 26 |
* @name Callback Table
|
| 27 |
* @details The callback table is a static struct, located in the MCUs flash memory (ROM) with offset @ref BL_CALLBACK_TABLE_OFFSET .
|
| 28 |
* It contains version information and a bunch of callback function pointers.
|
| 29 |
*/
|
| 30 |
///@{
|
| 31 |
|
| 32 |
/**
|
| 33 |
* @brief The offset from the flash memory base address to where the @ref blCallbackTable_t struct is stored.
|
| 34 |
* @note This offset must correspond with the @p _callback_table section in file @p memory.x of the bootloader.
|
| 35 |
*/
|
| 36 |
#define BL_CALLBACK_TABLE_OFFSET 0x000001C0u |
| 37 |
|
| 38 |
/**
|
| 39 |
* @brief The memory address where the @ref blCallbackTable_t struct is located in flash memory.
|
| 40 |
* @note This adress must correspond with the @p _callback_table section in file @p memory.x of the bootloader.
|
| 41 |
* @deprecated The @ref BL_CALLBACK_TABLE_OFFSET macro must be used for new software.
|
| 42 |
*/
|
| 43 |
#define BL_CALLBACK_TABLE_ADDRESS ((blCallbackTable_t*)(0x08000000u + BL_CALLBACK_TABLE_OFFSET)) |
| 44 |
|
| 45 |
/**
|
| 46 |
* @brief The major version number of the bootloader.
|
| 47 |
*/
|
| 48 |
#define BL_VERSION_MAJOR 1 |
| 49 |
|
| 50 |
/**
|
| 51 |
* @brief The minor version number of the bootloader.
|
| 52 |
*/
|
| 53 |
#define BL_VERSION_MINOR 0 |
| 54 |
|
| 55 |
/**
|
| 56 |
* @brief The major version number of the implemented SSSP (Startup & Shutdown Synchronization Protocol).
|
| 57 |
*/
|
| 58 |
#define SSSP_VERSION_MAJOR 1 |
| 59 |
|
| 60 |
/**
|
| 61 |
* @brief The minor version number of the implemented SSSP (Startup & Shutdown Synchronization Protocol).
|
| 62 |
*/
|
| 63 |
#define SSSP_VERSION_MINOR 1 |
| 64 |
|
| 65 |
/**
|
| 66 |
* @brief A struct to define a version in a generic way.
|
| 67 |
*/
|
| 68 |
struct blVersion_t {
|
| 69 |
const uint8_t identifier; /**< The identifier can be used if the version can be ambiguous. */ |
| 70 |
const uint8_t major; /**< Major version number. */ |
| 71 |
const uint8_t minor; /**< Minor version number. */ |
| 72 |
const uint8_t patch; /**< Patch level number. */ |
| 73 |
} __attribute__((packed)); |
| 74 |
|
| 75 |
/**
|
| 76 |
* @brief Synonym for simplified access.
|
| 77 |
*/
|
| 78 |
typedef struct blVersion_t blVersion_t; |
| 79 |
|
| 80 |
/**
|
| 81 |
* @brief An enum that defines possible values for the 'identifier' member of the @p blVersion_t struct.
|
| 82 |
* @note The values must be in (unsigned) 8 bit integer range.
|
| 83 |
*/
|
| 84 |
enum blVersionIdentifier_t {
|
| 85 |
BL_VERSION_ID_UNKNOWN = 0x00u, /**< Unknown identifier */ |
| 86 |
BL_VERSION_ID_NA = 0xFFu, /**< Identifier not applicable */ |
| 87 |
BL_VERSION_ID_AMiRoBLT_PreAlpha = 0x01u, /**< AMiRo-BLT pre-alpha identifier. */ |
| 88 |
BL_VERSION_ID_AMiRoBLT_Alpha = 0x02u, /**< AMiRo-BLT alpha version identifier. */ |
| 89 |
BL_VERSION_ID_AMiRoBLT_Beta = 0x03u, /**< AMiRo-BLT beta version identifier. */ |
| 90 |
BL_VERSION_ID_AMiRoBLT_ReleaseCandidate = 0x04u, /**< AMiRo-BLT release candidate (RC) identifier. */ |
| 91 |
BL_VERSION_ID_AMiRoBLT_Release = 0x05u, /**< AMiRo-BLT release version identifier. */ |
| 92 |
BL_VERSION_ID_SSSP = 0x01u, /**< Startup & Shutdown Synchronization Protocol identifier. */ |
| 93 |
BL_VERSION_ID_GCC = 0x01u, /**< Gnu Compiler Collection identifier. */ |
| 94 |
}; |
| 95 |
|
| 96 |
/**
|
| 97 |
* @brief A magic number to detect whether the callback table exists.
|
| 98 |
* @details The magic number can be interpreted as four character string "A-BL".
|
| 99 |
* The according hexadecimal values are 0x41, 0x2D, 0x42, and 0x4C.
|
| 100 |
* The according 32 bit integer is 0x412D424C.
|
| 101 |
*/
|
| 102 |
#define BL_MAGIC_NUMBER ((uint32_t)(('A'<<24) | ('-'<<16) | ('B'<<8) | ('L'<<0))) |
| 103 |
|
| 104 |
/**
|
| 105 |
* @brief This struct contains information about the bootloader version and pointers to several callback function.
|
| 106 |
* It is located at the constant address @ref BL_CALLBACK_TABLE_OFFSET in the flash memory.
|
| 107 |
* @note Sicne the actual implementations of the callback functions are optional, the pointers must be checked not to be @p NULL before use!
|
| 108 |
*/
|
| 109 |
struct blCallbackTable_t {
|
| 110 |
const uint32_t magicNumber; /**< A magic number that can be used for sanity checks. @sa BL_MAGIC_NUMBER. */ |
| 111 |
const blVersion_t vBootloader; /**< Version information about the bootloader. */ |
| 112 |
const blVersion_t vSSSP; /**< Version information about the Startup & Shutdown Synchronization Protocol (SSSP). */ |
| 113 |
const blVersion_t vCompiler; /**< Version information about the used compiler. */ |
| 114 |
/**
|
| 115 |
* @brief Callback function pointer to enter hibernate mode.
|
| 116 |
* @details In hibernate mode, the system enters maximum power-saving mode, but will wake up periodically in order to read some sensors.
|
| 117 |
*/
|
| 118 |
void (*const cbShutdownHibernate)(void); |
| 119 |
/**
|
| 120 |
* @brief Callback function pointer to enter deepsleep mode.
|
| 121 |
* @details In deepsleep mode, the system enters maximum power-saving mode, but basic sensors (e.g. charging plug) can wake the system.
|
| 122 |
*/
|
| 123 |
void (*const cbShutdownDeepsleep)(void); |
| 124 |
/**
|
| 125 |
* @brief Callback function pointer to enter transportation mode.
|
| 126 |
* @details In transportation mode, the system enters maximum power-saving mode and all wakeup signals are deactivated.
|
| 127 |
* Thus, the only way to reactivate the system will be a hard reset.
|
| 128 |
*/
|
| 129 |
void (*const cbShutdownTransportation)(void); /**< Callback function pointer to enter transportation mode. */ |
| 130 |
/**
|
| 131 |
* @brief Callback function pointer to restart the system.
|
| 132 |
*/
|
| 133 |
void (*const cbShutdownRestart)(void); |
| 134 |
/**
|
| 135 |
* @brief Callback function pointer to handle a shutdown request from another module.
|
| 136 |
* @details Depending on the result of the disambiguation procedure, the module will enter the requested low-power mode.
|
| 137 |
*/
|
| 138 |
void (*const cbHandleShutdownRequest)(void); |
| 139 |
void (*const cb5)(void); /**< Reserved but currently unused callback function pointer. */ |
| 140 |
void (*const cb6)(void); /**< Reserved but currently unused callback function pointer. */ |
| 141 |
void (*const cb7)(void); /**< Reserved but currently unused callback function pointer. */ |
| 142 |
void (*const cb8)(void); /**< Reserved but currently unused callback function pointer. */ |
| 143 |
void (*const cb9)(void); /**< Reserved but currently unused callback function pointer. */ |
| 144 |
void (*const cb10)(void); /**< Reserved but currently unused callback function pointer. */ |
| 145 |
void (*const cb11)(void); /**< Reserved but currently unused callback function pointer. */ |
| 146 |
} __attribute__((__packed__)); |
| 147 |
|
| 148 |
/**
|
| 149 |
* @brief Synonym for simplified access.
|
| 150 |
*/
|
| 151 |
typedef struct blCallbackTable_t blCallbackTable_t; |
| 152 |
|
| 153 |
///@}
|
| 154 |
/*============================================================================*/
|
| 155 |
|
| 156 |
/*============================================================================*/
|
| 157 |
/**
|
| 158 |
* @name Backup Register
|
| 159 |
* @details For the STM32F4 MCU (PowerManagement), the backup register contains additional information about the last shutdown and wakeup of the system.
|
| 160 |
*/
|
| 161 |
///@{
|
| 162 |
|
| 163 |
/**
|
| 164 |
* @brief Number of the RTC backup register in which some persistent information is stored.
|
| 165 |
* @note In the RTC section of the STM32F4 reference manual, the RTC backup registers are named @p RTC_BKPxR, where x is the register number.
|
| 166 |
*/
|
| 167 |
#define BL_RTC_BACKUP_REG 0 |
| 168 |
|
| 169 |
/**
|
| 170 |
* @brief This union is used for interpretation of the content of the backup register.
|
| 171 |
*/
|
| 172 |
union blBackupRegister_t {
|
| 173 |
/**
|
| 174 |
* @brief The raw data of the register.
|
| 175 |
*/
|
| 176 |
uint32_t raw; |
| 177 |
|
| 178 |
/**
|
| 179 |
* @brief A struct to interpret the content of the register.
|
| 180 |
*/
|
| 181 |
struct {
|
| 182 |
/**
|
| 183 |
* @brief The primary reason for the last system shutdown.
|
| 184 |
* @note The content of this member is enum-like.
|
| 185 |
* @sa BL_SHUTDOWN_PRI_RSN_UNKNOWN, BL_SHUTDOWN_PRI_RSN_HIBERNATE, BL_SHUTDOWN_PRI_RSN_DEEPSLEEP, BL_SHUTDOWN_PRI_RSN_TRANSPORT, BL_SHUTDOWN_PRI_RSN_RESTART
|
| 186 |
*/
|
| 187 |
uint8_t shutdown_pri_reason; |
| 188 |
|
| 189 |
/**
|
| 190 |
* @brief The secondary reason for the last system shutdown.
|
| 191 |
* @note The content of this member is enum-like.
|
| 192 |
* @sa BL_SHUTDOWN_SEC_RSN_UNKNOWN
|
| 193 |
*/
|
| 194 |
uint8_t shutdown_sec_reason; |
| 195 |
|
| 196 |
/**
|
| 197 |
* @brief The primary reason for the last system wakeup.
|
| 198 |
* @note The content of this member is bitmask-like.
|
| 199 |
* @sa BL_WAKEUP_PRI_RSN_UNKNOWN, BL_WAKEUP_PRI_RSN_LPWRRST, BL_WAKEUP_PRI_RSN_WWDGRST, BL_WAKEUP_PRI_RSN_IWDGRST, BL_WAKEUP_PRI_RSN_SFTRST, BL_WAKEUP_PRI_RSN_PORRST, BL_WAKEUP_PRI_RSN_PINRST, BL_WAKEUP_PRI_RSN_BORRST, BL_WAKEUP_PRI_RSN_WKUP
|
| 200 |
*/
|
| 201 |
uint8_t wakeup_pri_reason; |
| 202 |
|
| 203 |
/**
|
| 204 |
* @brief The secondary reason for the last system wakeup.
|
| 205 |
* @note The content of this member is bitmask-like.
|
| 206 |
* @sa BL_WAKEUP_SEC_RSN_UNKNOWN, BL_WAKEUP_SEC_RSN_UART, BL_WAKEUP_SEC_RSN_PWRPLUG, BL_WAKEUP_SEC_RSN_VSYSHIGH, BL_WAKEUP_SEC_RSN_VSYSLOW, BL_WAKEUP_SEC_RSN_TOUCH, BL_WAKEUP_SEC_RSN_ACCEL, BL_WAKEUP_SEC_RSN_RSVD
|
| 207 |
*/
|
| 208 |
uint8_t wakeup_sec_reason; |
| 209 |
} __attribute__((__packed__)); |
| 210 |
}; |
| 211 |
|
| 212 |
/**
|
| 213 |
* @brief Synonym for simplified access.
|
| 214 |
*/
|
| 215 |
typedef union blBackupRegister_t blBackupRegister_t; |
| 216 |
|
| 217 |
/**
|
| 218 |
* @brief An enum defining identifiers for possible reasons for system shutdown.
|
| 219 |
* @note The values must be in (unsigned) 8 bit integer range.
|
| 220 |
*/
|
| 221 |
enum blShutdownReason_t {
|
| 222 |
/**
|
| 223 |
* @brief The reason was not set or the register was reset.
|
| 224 |
*/
|
| 225 |
BL_SHUTDOWN_PRI_RSN_UNKNOWN = 0x00u,
|
| 226 |
|
| 227 |
/**
|
| 228 |
* @brief The system was shut down to enter hibernate mode.
|
| 229 |
*/
|
| 230 |
BL_SHUTDOWN_PRI_RSN_HIBERNATE = 0x01u,
|
| 231 |
|
| 232 |
/**
|
| 233 |
* @brief The system was shut down to enter deepsleep mode.
|
| 234 |
*/
|
| 235 |
BL_SHUTDOWN_PRI_RSN_DEEPSLEEP = 0x02u,
|
| 236 |
|
| 237 |
/**
|
| 238 |
* @brief The system was shut down to enter transportation mode.
|
| 239 |
*/
|
| 240 |
BL_SHUTDOWN_PRI_RSN_TRANSPORT = 0x03u,
|
| 241 |
|
| 242 |
/**
|
| 243 |
* @brief The system was shut down to restart.
|
| 244 |
*/
|
| 245 |
BL_SHUTDOWN_PRI_RSN_RESTART = 0x04u,
|
| 246 |
|
| 247 |
/**
|
| 248 |
* @brief The default shutdown mode.
|
| 249 |
* @details This mode is used, if the shutdown sequence was triggered by another module than the PowerManagement.
|
| 250 |
*/
|
| 251 |
BL_SHUTDOWN_PRI_RSN_DEFAULT = BL_SHUTDOWN_PRI_RSN_DEEPSLEEP, |
| 252 |
|
| 253 |
/**
|
| 254 |
* @brief The reason was not set or the regsiter was reset.
|
| 255 |
*/
|
| 256 |
BL_SHUTDOWN_SEC_RSN_UNKNOWN = 0x00u,
|
| 257 |
}; |
| 258 |
|
| 259 |
/**
|
| 260 |
* @brief An enum defining identifiers for possible reasons for system wakeup.
|
| 261 |
* @note The values must be in (unsigned) 8 bit integer range.
|
| 262 |
*/
|
| 263 |
enum blWakeupReason_t {
|
| 264 |
/**
|
| 265 |
* @brief The reason could not be determined.
|
| 266 |
*/
|
| 267 |
BL_WAKEUP_PRI_RSN_UNKNOWN = 0x00u,
|
| 268 |
|
| 269 |
/**
|
| 270 |
* @brief The system was reset because of the low-power management configuration.
|
| 271 |
*/
|
| 272 |
BL_WAKEUP_PRI_RSN_LPWRRST = 0x01u,
|
| 273 |
|
| 274 |
/**
|
| 275 |
* @brief The system was woken by the window watchdog.
|
| 276 |
*/
|
| 277 |
BL_WAKEUP_PRI_RSN_WWDGRST = 0x02u,
|
| 278 |
|
| 279 |
/**
|
| 280 |
* @brief The system was woken by the independant watchdog.
|
| 281 |
*/
|
| 282 |
BL_WAKEUP_PRI_RSN_IWDGRST = 0x04u,
|
| 283 |
|
| 284 |
/**
|
| 285 |
* @brief The system was reset by software.
|
| 286 |
*/
|
| 287 |
BL_WAKEUP_PRI_RSN_SFTRST = 0x08u,
|
| 288 |
|
| 289 |
/**
|
| 290 |
* @brief The system was woken by a power-on/power-down reset.
|
| 291 |
*/
|
| 292 |
BL_WAKEUP_PRI_RSN_PORRST = 0x10u,
|
| 293 |
|
| 294 |
/**
|
| 295 |
* @brief The system was reset via the NRST pin.
|
| 296 |
*/
|
| 297 |
BL_WAKEUP_PRI_RSN_PINRST = 0x20u,
|
| 298 |
|
| 299 |
/**
|
| 300 |
* @brief The system was woken by a power-on/power-down, or a brownout reset.
|
| 301 |
*/
|
| 302 |
BL_WAKEUP_PRI_RSN_BORRST = 0x40u,
|
| 303 |
|
| 304 |
/**
|
| 305 |
* @brief The system was woken via the WKUP pin.
|
| 306 |
*/
|
| 307 |
BL_WAKEUP_PRI_RSN_WKUP = 0x80u,
|
| 308 |
|
| 309 |
/**
|
| 310 |
* @brief The reason could not be determined.
|
| 311 |
*/
|
| 312 |
BL_WAKEUP_SEC_RSN_UNKNOWN = 0x00u,
|
| 313 |
|
| 314 |
/**
|
| 315 |
* @brief The WKUP pin was triggered by the UART signal.
|
| 316 |
*/
|
| 317 |
BL_WAKEUP_SEC_RSN_UART = 0x01u,
|
| 318 |
|
| 319 |
/**
|
| 320 |
* @brief The WKUP pin was triggered by plugging in a power plug.
|
| 321 |
*/
|
| 322 |
BL_WAKEUP_SEC_RSN_PWRPLUG = 0x02u,
|
| 323 |
|
| 324 |
/**
|
| 325 |
* @brief The internal ADC detected a system voltage higher than the configured threshold.
|
| 326 |
* @note Usually the threshold is set to 9V.
|
| 327 |
*/
|
| 328 |
BL_WAKEUP_SEC_RSN_VSYSHIGH = 0x04u,
|
| 329 |
|
| 330 |
/**
|
| 331 |
* @brief The internal ADC detected a system voltage lower than the configured threshold.
|
| 332 |
*/
|
| 333 |
BL_WAKEUP_SEC_RSN_VSYSLOW = 0x08u,
|
| 334 |
|
| 335 |
/**
|
| 336 |
* @brief The WKUP pin was triggered by an interrupt from the touch sensors.
|
| 337 |
*/
|
| 338 |
BL_WAKEUP_SEC_RSN_TOUCH = 0x10u,
|
| 339 |
|
| 340 |
/**
|
| 341 |
* @brief The WKUP pin was triggered by an interrupt from the accelerometer.
|
| 342 |
*/
|
| 343 |
BL_WAKEUP_SEC_RSN_ACCEL = 0x20u,
|
| 344 |
|
| 345 |
/**
|
| 346 |
* @brief Reserved value that must not be used right now, but might become valid in a future version.
|
| 347 |
*/
|
| 348 |
BL_WAKEUP_SEC_RSN_RSVD = 0xC0u,
|
| 349 |
}; |
| 350 |
|
| 351 |
///@}
|
| 352 |
|
| 353 |
/** @} */
|
| 354 |
|
| 355 |
#endif // _AMIROBLT_H_ |
| 356 |
|
| 357 |
/** @} */
|