Diff: Source/log.cpp

Revision:

23:7ca590427f0e

Child:

24:761c30334cf4

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Source/log.cpp	Tue Mar 19 19:25:39 2019 +0000
@@ -0,0 +1,140 @@
+#include "mbed.h"
+#include "ble/BLE.h"
+//#include "ble/services/UARTService.h"
+#include "BLE_Stuff.h"
+#include "hw.h"
+#include "log.h"
+#include "main.h"
+#include "mem.h"
+extern "C" {
+    #include <nrf_nvmc.h>
+}
+
+#if LOG_SIZE * 8 > 1024 * PSTORAGE_NUM_OF_PAGES
+    error, allocated flash not big enough for storing logs
+#endif
+
+// Counts number of records with non-zero time field
+uint32_t log_get_num_records(void)
+{
+    uint32_t cnt = 0;
+    log_struct *rec = (log_struct *)PSTORAGE_DATA_START_ADDR;
+    
+    while(rec < (log_struct *)PSTORAGE_DATA_END_ADDR)
+    {
+        if(rec->time == 0xffffffff) return cnt;
+        cnt++;
+        rec++;
+    }
+    return 0;
+}
+
+// returns the number of records with code type
+uint32_t log_code_count(event_t code)
+{
+    uint32_t cnt = 0;
+    log_struct *rec = (log_struct *)PSTORAGE_DATA_START_ADDR;
+    
+    while(rec < (log_struct *)PSTORAGE_DATA_END_ADDR)
+    {
+        if(rec->time == 0xffffffff) return cnt;
+        if(rec->code == code) cnt++;
+        rec++;
+    }
+    return 0;    
+}
+
+// returns address of 1st free record
+static log_struct * get_free_record(void)
+{
+    log_struct *rec = (log_struct *)PSTORAGE_DATA_START_ADDR;
+    
+    while(rec < (log_struct *)PSTORAGE_DATA_END_ADDR)
+    {
+        if(rec->time == 0xffffffff) return rec;
+        rec++;
+    }
+    return 0;
+}
+
+// can not be called while BLE is active
+void log_erase(void)
+{
+    uint32_t addr = PSTORAGE_DATA_START_ADDR;
+    
+    //stop_radio_and_wait();
+    
+    while(addr < PSTORAGE_DATA_END_ADDR)
+    {
+        nrf_nvmc_page_erase(addr);
+        addr += PSTORAGE_FLASH_PAGE_SIZE;
+    }
+}
+
+/// Puts the requested log record out on the BLE UART.
+void log_show(void)
+{
+    int cnt = log_get_num_records();
+    log_struct * rec = (log_struct *)PSTORAGE_DATA_START_ADDR;
+    
+    BLE_UART_xmit("*Num Records=");
+    BLE_UART_xmit(cnt);
+    BLE_UART_xmit("\n");
+
+    while(rec < (log_struct *)PSTORAGE_DATA_END_ADDR) {
+        // show record
+        uint32_t offset = read_time_correction();
+        
+        if(rec->time == 0xffffffff) break;
+
+        // hex numbers
+        BLE_UART_xmit("~");
+        BLE_UART_xmit(char2hex(rec->time + offset, 8));
+        BLE_UART_xmit(char2hex(rec->code));
+        BLE_UART_xmit(char2hex(rec->d0));
+        BLE_UART_xmit(char2hex(rec->d1));
+        BLE_UART_xmit(char2hex(rec->d2));
+
+        BLE_UART_xmit("\n");
+        rec++;
+        //ble.waitForEvent();
+        delay_ms(100);
+    }
+    
+    //BLE_UART_xmit("Done!\n");
+}
+
+// add a new log entry
+// 
+void log_add(event_t code, char d0, char d1, char d2)
+{ 
+    uint32_t addr = (uint32_t)get_free_record();
+    log_struct rec;
+    
+    if(addr == 0) return; // error, out of record storage
+    
+    rec.time = read_clock();
+    rec.code = code;
+    rec.d0 = d0;
+    rec.d1 = d1;
+    rec.d2 = d2;
+    if(rec.time==0) rec.time++; // can't have a completely zero record.
+
+#if UART_DEBUGGING==0  // only do write to flash if not debugging w/BLE    
+    set_radio(false);
+    wait(1.0);
+    nrf_nvmc_write_words(addr, (uint32_t *)(&rec), 2);
+#endif
+}
+
+/// Clear Non-Volatile Flag
+void nv_clear(uint32_t addr)
+{   
+    uint32_t zero = 0;
+
+#if UART_DEBUGGING==0  // only do write to flash if not debugging w/BLE    
+    set_radio(false);
+    wait(1.0);
+    nrf_nvmc_write_words(addr, (uint32_t *)(&zero), 1);
+#endif
+}