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sdlog_chibios.c
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1 /*
2  * Copyright (C) 2013-2015 Gautier Hattenberger, Alexandre Bustico
3  *
4  * This file is part of paparazzi.
5  *
6  * paparazzi is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2, or (at your option)
9  * any later version.
10  *
11  * paparazzi is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14  * GNU General Public License for more details.
15  *
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17  * along with paparazzi; see the file COPYING. If not, write to
18  * the Free Software Foundation, 59 Temple Place - Suite 330,
19  * Boston, MA 02111-1307, USA.
20  */
21 
22 /*
23  * @file modules/loggers/sdlog_chibios.c
24  * @brief sdlog process with battery monitoring
25  *
26  */
27 
28 #include <ch.h>
29 #include <hal.h>
35 #include "mcu_periph/adc.h"
36 #include "mcu.h"
37 #include "led.h"
38 
39 #if HAL_USE_RTC
40 #include <hal_rtc.h>
41 #include <time.h>
42 #include "subsystems/gps.h"
43 #endif
44 
45 // Delay before starting SD log
46 #ifndef SDLOG_START_DELAY
47 #define SDLOG_START_DELAY 30
48 #endif
49 
50 // Auto-flush period (in seconds)
51 #ifndef SDLOG_AUTO_FLUSH_PERIOD
52 #define SDLOG_AUTO_FLUSH_PERIOD 10
53 #endif
54 
55 // Contiguous storage memory (in Mo)
56 #ifndef SDLOG_CONTIGUOUS_STORAGE_MEM
57 #define SDLOG_CONTIGUOUS_STORAGE_MEM 50
58 #endif
59 
60 #if (!defined USE_ADC_WATCHDOG) || (USE_ADC_WATCHDOG == 0)
61 #error sdlog_chibios need USE_ADC_WATCHDOG in order to properly close files when power is unplugged
62 #endif
63 
64 #define DefaultAdcOfVoltage(voltage) ((uint32_t) (voltage/(DefaultVoltageOfAdc(1))))
66 static const char PPRZ_LOG_NAME[] = "pprzlog_";
67 static const char PPRZ_LOG_DIR[] = "PPRZ";
68 
69 /*
70  * Start log thread
71  */
72 static THD_WORKING_AREA(wa_thd_startlog, 2048);
73 static __attribute__((noreturn)) void thd_startlog(void *arg);
74 
75 /*
76  * Bat survey thread
77  */
78 static THD_WORKING_AREA(wa_thd_bat_survey, 1024);
79 static __attribute__((noreturn)) void thd_bat_survey(void *arg);
80 static void powerOutageIsr(void);
81 event_source_t powerOutageSource;
82 event_listener_t powerOutageListener;
83 
84 bool sdOk = false;
85 
87 
89 
90 #if FLIGHTRECORDER_SDLOG
91 static const char FLIGHTRECORDER_LOG_NAME[] = "fr_";
92 static const char FR_LOG_DIR[] = "FLIGHT_RECORDER";
93 FileDes flightRecorderLogFile = -1;
94 #endif
95 
98 static enum {
103 
106 static char chibios_sdlog_filenames[68];
107 
108 #if PERIODIC_TELEMETRY
110 static void send_sdlog_status(struct transport_tx *trans, struct link_device *dev)
111 {
113  uint8_t errno = (uint8_t) sdLogGetStorageStatus();
114  uint32_t used = (uint32_t) sdLogGetNbBytesWrittenToStorage();
115  pprz_msg_send_LOGGER_STATUS(trans, dev, AC_ID, &status, &errno, &used, strlen(chibios_sdlog_filenames), chibios_sdlog_filenames);
116 }
117 #endif
118 
119 
120 // Functions for the generic device API
121 static int sdlog_check_free_space(struct chibios_sdlog *p __attribute__((unused)), long *fd, uint16_t len)
122 {
123  SdLogBuffer *sdb;
124  SdioError status = sdLogAllocSDB(&sdb, len);
125  if (status != SDLOG_OK) {
126  return 0;
127  } else {
128  *fd = (long) sdb;
129  return 1;
130  }
131 }
132 
133 static void sdlog_transmit(struct chibios_sdlog *p __attribute__((unused)), long fd, uint8_t byte)
134 {
135  SdLogBuffer *sdb = (SdLogBuffer *) fd;
136  uint8_t *data = (uint8_t *) sdLogGetBufferFromSDB(sdb);
137  *data = byte;
138  sdLogSeekBufferFromSDB(sdb, 1);
139 }
140 
141 static void sdlog_transmit_buffer(struct chibios_sdlog *p __attribute__((unused)), long fd, uint8_t *data, uint16_t len)
142 {
143  SdLogBuffer *sdb = (SdLogBuffer *) fd;
144  memcpy(sdLogGetBufferFromSDB(sdb), data, len);
145  sdLogSeekBufferFromSDB(sdb, len);
146 }
147 
148 static void sdlog_send(struct chibios_sdlog *p, long fd)
149 {
150  SdLogBuffer *sdb = (SdLogBuffer *) fd;
151  sdLogWriteSDB(*(p->file), sdb);
152 }
153 
154 static int null_function(struct chibios_sdlog *p __attribute__((unused))) { return 0; }
155 static uint8_t null_byte_function(struct chibios_sdlog *p __attribute__((unused))) { return 0; }
156 
157 void chibios_sdlog_init(struct chibios_sdlog *sdlog, FileDes *file)
158 {
159  // Store file descriptor
160  sdlog->file = file;
161  // Configure generic device
162  sdlog->device.periph = (void *)(sdlog);
163  sdlog->device.check_free_space = (check_free_space_t) sdlog_check_free_space;
164  sdlog->device.put_byte = (put_byte_t) sdlog_transmit;
165  sdlog->device.put_buffer = (put_buffer_t) sdlog_transmit_buffer;
166  sdlog->device.send_message = (send_message_t) sdlog_send;
167  sdlog->device.char_available = (char_available_t) null_function; // write only
168  sdlog->device.get_byte = (get_byte_t) null_byte_function; // write only
169 
170 }
171 
173 {
175 #if PERIODIC_TELEMETRY
177 #endif
178 
179  // Start polling on USB
181 
182  // Start log thread
183  chThdCreateStatic(wa_thd_startlog, sizeof(wa_thd_startlog),
184  NORMALPRIO + 2, thd_startlog, NULL);
185 }
186 
187 
188 void sdlog_chibios_finish(const bool flush)
189 {
190  if (pprzLogFile != -1) {
191  // disable all required periph to save energy and maximize chance to flush files
192  // to mass storage and avoid infamous dirty bit on filesystem
194 
195  // if a FF_FS_REENTRANT is true, we can umount fs without closing
196  // file, fatfs lock will assure that umount is done after a write,
197  // and umount will close all open files cleanly. Thats the fatest
198  // way to umount cleanly filesystem.
199  //
200  // if FF_FS_REENTRANT is false,
201  // we have to flush and close files before unmounting filesystem
202 #if FF_FS_REENTRANT == 0
203  sdLogCloseAllLogs(flush);
204 #else
205  (void) flush;
206 #endif
207 
208  sdLogFinish();
209  pprzLogFile = 0;
210 #if FLIGHTRECORDER_SDLOG
211  flightRecorderLogFile = 0;
212 #endif
213  }
215 }
216 
217 static void thd_startlog(void *arg)
218 {
219  (void) arg;
220  chRegSetThreadName("start log");
221  char tmpFilename[32];
222 
223  // Wait before starting the log if needed
224  chThdSleepSeconds(SDLOG_START_DELAY);
225  // Check if we are already in USB Storage mode
226  if (usbStorageIsItRunning()) {
227  chThdSleepSeconds(20000); // stuck here for hours FIXME stop the thread ?
228  }
229 
230  // Init sdlog struct
231  chibios_sdlog_init(&chibios_sdlog, &pprzLogFile);
232 
233  // Check for init errors
234  sdOk = true;
235 
236  if (sdLogInit(NULL) != SDLOG_OK) {
237  sdOk = false;
238  } else {
240  if (sdLogOpenLog(&pprzLogFile, PPRZ_LOG_DIR,
242  SDLOG_CONTIGUOUS_STORAGE_MEM, LOG_PREALLOCATION_DISABLED, tmpFilename, sizeof(tmpFilename)) != SDLOG_OK) {
243  sdOk = false;
244  }
245  chsnprintf(chibios_sdlog_filenames, sizeof(chibios_sdlog_filenames), "%s", tmpFilename);
246 #if FLIGHTRECORDER_SDLOG
247  removeEmptyLogs(FR_LOG_DIR, FLIGHTRECORDER_LOG_NAME, 50);
248  if (sdLogOpenLog(&flightRecorderLogFile, FR_LOG_DIR, FLIGHTRECORDER_LOG_NAME,
250  SDLOG_CONTIGUOUS_STORAGE_MEM, LOG_PREALLOCATION_DISABLED, tmpFilename, sizeof(tmpFilename)) != SDLOG_OK) {
251  sdOk = false;
252  }
253  chsnprintf(chibios_sdlog_filenames, sizeof(chibios_sdlog_filenames), ", %s", tmpFilename);
254 #endif
255  }
256 
257  if (sdOk) {
258  // Create Battery Survey Thread with event
259  chEvtObjectInit(&powerOutageSource);
260  chThdCreateStatic(wa_thd_bat_survey, sizeof(wa_thd_bat_survey),
261  NORMALPRIO + 2, thd_bat_survey, NULL);
262 
264  } else {
266  }
267 
268  while (true) {
269 #ifdef SDLOG_LED
270  LED_TOGGLE(SDLOG_LED);
271 #endif
272  // Blink faster if init has errors
273  chThdSleepMilliseconds(sdOk == true ? 1000 : 200);
274  if (sdLogGetStorageStatus() != SDLOG_OK) {
276  sdOk = false;
277  } else {
279  sdOk = true;
280  }
281 
282 #if HAL_USE_RTC && USE_GPS
283  static uint32_t timestamp = 0;
284  // FIXME this could be done somewhere else, like in sys_time
285  // we sync gps time to rtc every 5 seconds
286  if (chVTGetSystemTime() - timestamp > 5000) {
287  timestamp = chVTGetSystemTime();
288  if (gps.tow != 0) {
289  // Unix timestamp of the GPS epoch 1980-01-06 00:00:00 UTC
290  const uint32_t unixToGpsEpoch = 315964800;
291  struct tm time_tm;
292  time_t univTime = ((gps.week * 7 * 24 * 3600) + (gps.tow / 1000)) + unixToGpsEpoch;
293  gmtime_r(&univTime, &time_tm);
294  // Chibios date struct
295  RTCDateTime date;
296  rtcConvertStructTmToDateTime(&time_tm, 0, &date);
297  rtcSetTime(&RTCD1, &date);
298  }
299  }
300 #endif
301 
302  }
303 }
304 
305 
306 static void thd_bat_survey(void *arg)
307 {
308  (void)arg;
309  chRegSetThreadName("battery survey");
310  chEvtRegister(&powerOutageSource, &powerOutageListener, 1);
311  chThdSleepMilliseconds(2000);
312 
313  register_adc_watchdog(&SDLOG_BAT_ADC, SDLOG_BAT_CHAN, V_ALERT, &powerOutageIsr);
314 
315  chEvtWaitOne(EVENT_MASK(1));
316  // in case of powerloss, we should go fast and avoid to flush ram buffer
317  sdlog_chibios_finish(false);
318  chThdExit(0);
319  mcu_deep_sleep();
320  chThdSleep(TIME_INFINITE);
321  while (true); // never goes here, only to avoid compiler warning: 'noreturn' function does return
322 }
323 
324 
325 /*
326  powerOutageIsr is called within a lock zone from an isr, so no lock/unlock is needed
327  */
328 static void powerOutageIsr(void)
329 {
330  chEvtBroadcastI(&powerOutageSource);
331 }
332 
SdioError sdLogFinish(void)
unmount filesystem
Definition: sdLog.c:262
unsigned short uint16_t
Definition: types.h:16
#define LOG_APPEND_TAG_AT_CLOSE_DISABLED
Definition: sdLog.h:105
Mini printf-like functionality.
static void thd_bat_survey(void *arg)
static THD_WORKING_AREA(wa_thd_startlog, 2048)
int8_t FileDes
Definition: sdLog.h:128
event_listener_t powerOutageListener
Definition: sdlog_chibios.c:82
static void thd_startlog(void *arg)
void sdlog_chibios_finish(const bool flush)
Periodic telemetry system header (includes downlink utility and generated code).
uint16_t week
GPS week.
Definition: gps.h:108
static const uint16_t V_ALERT
Definition: sdlog_chibios.c:65
#define SDLOG_BAT_ADC
Definition: board.h:574
void chsnprintf(char *buffer, size_t size, const char *fmt,...)
Definition: printf.c:377
struct link_device device
Generic device interface.
Definition: sdlog_chibios.h:57
static const char PPRZ_LOG_NAME[]
Definition: sdlog_chibios.c:66
static const char PPRZ_LOG_DIR[]
Definition: sdlog_chibios.c:67
static void powerOutageIsr(void)
arch independent ADC (Analog to Digital Converter) API
#define LOG_PREALLOCATION_DISABLED
Definition: sdLog.h:103
SdioError sdLogInit(uint32_t *freeSpaceInKo)
initialise sdLog
Definition: sdLog.c:202
chibios_sdlog structure
Definition: sdlog_chibios.h:54
#define SDLOG_AUTO_FLUSH_PERIOD
Definition: sdlog_chibios.c:52
static enum @293 chibios_sdlog_status
sdlog status
FileDes * file
Definition: sdlog_chibios.h:55
static char chibios_sdlog_filenames[68]
sdlog filenames
void WEAK mcu_periph_energy_save(void)
Call board specific energy saving Can be necessary for closing on power off.
Definition: mcu_arch.c:154
static uint8_t null_byte_function(struct chibios_sdlog *p)
Dynamic memory allocation based on TLSF library.
static int sdlog_check_free_space(struct chibios_sdlog *p, long *fd, uint16_t len)
event_source_t powerOutageSource
Definition: sdlog_chibios.c:81
uint32_t tow
GPS time of week in ms.
Definition: gps.h:109
Device independent GPS code (interface)
uint8_t status
void usbStorageStartPolling(void)
Definition: usbStorage.c:70
unsigned long uint32_t
Definition: types.h:18
SdioError removeEmptyLogs(const char *directoryName, const char *prefix, const size_t sizeConsideredEmpty)
remove spurious log file left on sd
Definition: sdLog.c:791
#define DefaultPeriodic
Set default periodic telemetry.
Definition: telemetry.h:66
FileDes pprzLogFile
Definition: sdlog_chibios.c:86
static void mcu_deep_sleep(void)
Put MCU into deep sleep mode.
Definition: mcu_arch.h:55
uint16_t f
Camera baseline, in meters (i.e. horizontal distance between the two cameras of the stereo setup) ...
Definition: wedgebug.c:204
SdioError
Definition: sdLog.h:111
#define SDLOG_BAT_CHAN
Definition: board.h:575
#define LED_TOGGLE(i)
Definition: led_hw.h:53
static int null_function(struct chibios_sdlog *p)
#define DefaultAdcOfVoltage(voltage)
Definition: sdlog_chibios.c:64
static const struct usb_device_descriptor dev
Definition: usb_ser_hw.c:74
Arch independent mcu ( Micro Controller Unit ) utilities.
unsigned char uint8_t
Definition: types.h:14
#define byte
bool sdOk
Definition: sdlog_chibios.c:84
#define SDLOG_CONTIGUOUS_STORAGE_MEM
Definition: sdlog_chibios.c:57
int fd
Definition: serial.c:26
#define SDLOG_START_DELAY
Definition: sdlog_chibios.c:47
void chibios_sdlog_init(struct chibios_sdlog *sdlog, FileDes *file)
init chibios_sdlog structure
arch independent LED (Light Emitting Diodes) API
static float p[2][2]
bool usbStorageIsItRunning(void)
Definition: usbStorage.c:145
static void send_sdlog_status(struct transport_tx *trans, struct link_device *dev)
static void sdlog_transmit(struct chibios_sdlog *p, long fd, uint8_t byte)
#define false
Definition: rtwtypes.h:24
static void sdlog_send(struct chibios_sdlog *p, long fd)
struct _SdLogBuffer SdLogBuffer
Definition: sdLog.h:127
struct GpsState gps
global GPS state
Definition: gps.c:69
static void sdlog_transmit_buffer(struct chibios_sdlog *p, long fd, uint8_t *data, uint16_t len)
void sdlog_chibios_init(void)
int8_t register_periodic_telemetry(struct periodic_telemetry *_pt, uint8_t _id, telemetry_cb _cb)
Register a telemetry callback function.
Definition: telemetry.c:46