chips/pn53x: add pn53x_data_new() function to alloc and init pn53x_data structure.

libnfc/drivers/acr122.c

@@ -193,7 +193,9 @@ acr122_connect (const nfc_device_desc_t * pndd)
   char   *pcFirmware;
   nfc_device_t *pnd = nfc_device_new ();
   pnd->driver_data = malloc (sizeof (struct acr122_data));
-  pnd->chip_data = malloc (sizeof (struct pn53x_data));
+
+  // Alloc and init chip's data
+  pn53x_data_new (pnd, &acr122_io);
 
   SCARDCONTEXT *pscc;
 
@@ -220,8 +222,6 @@ acr122_connect (const nfc_device_desc_t * pndd)
     // Done, we found the reader we are looking for
     snprintf (pnd->acName, sizeof (pnd->acName), "%s / %s", pndd->acDevice, pcFirmware);
 
-    CHIP_DATA (pnd)->power_mode = NORMAL;
-    CHIP_DATA (pnd)->io = &acr122_io;
     // 50: empirical tuning on Touchatag
     // 46: empirical tuning on ACR122U
     CHIP_DATA (pnd)->timer_correction = 50;

libnfc/drivers/arygon.c

@@ -117,9 +117,9 @@ arygon_probe (nfc_device_desc_t pnddDevices[], size_t szDevices, size_t * pszDev
       pnd->driver = &arygon_driver;
       pnd->driver_data = malloc(sizeof(struct arygon_data));
       DRIVER_DATA (pnd)->port = sp;
-      pnd->chip_data = malloc(sizeof(struct pn53x_data));
-      CHIP_DATA (pnd)->power_mode = NORMAL;
-      CHIP_DATA (pnd)->io = &arygon_tama_io;
+
+      // Alloc and init chip's data
+      pn53x_data_new (pnd, &arygon_tama_io);
 
       bool res = arygon_reset_tama (pnd);
       nfc_device_free (pnd);

libnfc/drivers/pn532_uart.c

@@ -98,10 +98,11 @@ pn532_uart_probe (nfc_device_desc_t pnddDevices[], size_t szDevices, size_t * ps
       pnd->driver = &pn532_uart_driver;
       pnd->driver_data = malloc(sizeof(struct pn532_uart_data));
       DRIVER_DATA (pnd)->port = sp;
-      pnd->chip_data = malloc(sizeof(struct pn53x_data));
-      CHIP_DATA (pnd)->type = PN532;
+
+      // Alloc and init chip's data
+      pn53x_data_new (pnd, &pn532_uart_io);
+      // This device starts in LowVBat power mode
       CHIP_DATA (pnd)->power_mode = LOWVBAT;
-      CHIP_DATA (pnd)->io = &pn532_uart_io;
 
       // Check communication using "Diagnose" command, with "Communication test" (0x00)
       bool res = pn53x_check_communication (pnd);

libnfc/drivers/pn53x_usb.c

@@ -290,10 +290,9 @@ pn53x_usb_connect (const nfc_device_desc_t *pndd)
 
         pnd->driver_data = malloc(sizeof(struct pn53x_usb_data));
         *DRIVER_DATA (pnd) = data;
-        pnd->chip_data = malloc(sizeof(struct pn53x_data));
 
-        CHIP_DATA (pnd)->power_mode = NORMAL;
-        CHIP_DATA (pnd)->io = &pn53x_usb_io;
+        // Alloc and init chip's data
+        pn53x_data_new (pnd, &pn53x_usb_io);
 
         switch (DRIVER_DATA (pnd)->model) {
           // empirical tuning