Add SDCARD_get_file_info

fossasia · Dec 4, 2023 · d6f594a · d6f594a
1 parent e0e82df
commit d6f594a
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Showing 4 changed files with 41 additions and 3 deletions.
diff --git a/src/commands.c b/src/commands.c
@@ -296,8 +296,8 @@ command_func_t* const cmd_table[NUM_PRIMARY_CMDS + 1][NUM_SECONDARY_CMDS_MAX + 1
         Undefined,                      Undefined,                      Undefined,                      Undefined,
     },
     { // 14 SDCARD
-     // 0                               1 READ_FILE                     2 WRITE_FILE                    3
-        Undefined,                      SDCARD_read_file,               SDCARD_write_file,              Undefined,
+     // 0                               1 READ_FILE                     2 WRITE_FILE                    3 GET_FILE_INFO
+        Undefined,                      SDCARD_read_file,               SDCARD_write_file,              SDCARD_get_file_info,
      // 4                               5                               6                               7
         Undefined,                      Undefined,                      Undefined,                      Undefined,
      // 8                               9                               10                              11

diff --git a/src/commands.h b/src/commands.h
@@ -31,7 +31,7 @@ extern "C" {
 #define NUM_COMMON_CMDS 27
 #define NUM_PASSTHRU_CMDS 1
 #define NUM_SENSOR_CMDS 9
-#define NUM_SDCARD_CMDS 2
+#define NUM_SDCARD_CMDS 3
 #define NUM_SECONDARY_CMDS_MAX NUM_COMMON_CMDS // Change if necessary.
 
 /**

diff --git a/src/sdcard/sdcard.c b/src/sdcard/sdcard.c
@@ -105,3 +105,23 @@ response_t SDCARD_read_file(void) {
 
     return DO_NOT_BOTHER;
 }
+
+response_t SDCARD_get_file_info(void) {
+    TCHAR filename[SFN_MAX + SFN_SUFFIX_LEN + 1]; // +1 is null-terminator.
+    get_filename(filename, sizeof filename);
+
+    FATFS drive;
+    DEBUG_write_u8(f_mount(&drive, "0:", 1));
+
+    FILINFO info = {0, 0, 0, 0, {0}};
+    DEBUG_write_u8(f_stat(filename, &info));
+
+    UART1_write_u32(info.fsize);
+    UART1_WriteInt(info.fdate);
+    UART1_WriteInt(info.ftime);
+    UART1_Write(info.fattrib);
+
+    DEBUG_write_u8(f_mount(0, "0:", 0));
+
+    return SUCCESS;
+}
diff --git a/src/sdcard/sdcard.h b/src/sdcard/sdcard.h
@@ -79,4 +79,22 @@ response_t SDCARD_write_file(void);
  */
 response_t SDCARD_read_file(void);
 
+/**
+ * @brief Get metadata of file on SD-card.
+ *
+ * @details See documentation of FatFS FILINFO.
+        UART transaction order:
+ *             Rx[1-12]    filename
+ *     <DEBUG> Tx[1]       result_mount
+ *     <DEBUG> Tx[1]       result_stat
+ *             Tx[4]       data_size
+ *             Tx[2]       modification_date
+ *             Tx[2]       modification_time
+ *             Tx[1]       file_attributes
+ *     <DEBUG> Tx[1]       result_unmount
+ *
+ * @return SUCCESS
+ */
+response_t SDCARD_get_file_info(void);
+
 #endif // _SDCARD_H