PN5180 supports Mifare auth and block read

firmware/src/commands.c

@@ -40,6 +40,7 @@ static void handle_display()
             aic_cfg->light.rgb ? "ON" : "OFF",
             aic_cfg->light.led ? "ON" : "OFF");
     printf("    Level: [%d ~ %d]\n", aic_cfg->light.min, aic_cfg->light.max);
+    printf("[AIME]\n");
     printf("    Virtual AIC: %s\n", aic_cfg->virtual_aic ? "ON" : "OFF");
 }
 
@@ -57,7 +58,11 @@ static void handle_factory_reset()
 static void handle_nfc()
 {
     printf("NFC module: %s\n", nfc_module_name());
+
+    nfc_rf_field(true);
     nfc_card_t card = nfc_detect_card();
+    nfc_rf_field(false);
+
     printf("Card: %s", nfc_card_name(card.card_type));
     for (int i = 0; i < card.len; i++) {
         printf(" %02x", card.uid[i]);

firmware/src/lib/nfc.c

@@ -53,7 +53,7 @@ struct {
     bool (*poll_felica)(uint8_t uid[8], uint8_t pmm[8], uint8_t syscode[2], bool from_cache);
     bool (*poll_vicinity)(uint8_t uid[8]);
     void (*rf_field)(bool on);
-    bool (*mifare_auth)(const uint8_t uid[4], uint8_t block_id, uint8_t key_id, const uint8_t *key);
+    bool (*mifare_auth)(const uint8_t uid[4], uint8_t block_id, uint8_t key_id, const uint8_t key[6]);
     bool (*mifare_read)(uint8_t block_id, uint8_t block_data[16]);
     void (*set_wait_loop)(nfc_wait_loop_t loop);
 } api[3] = {
@@ -65,8 +65,8 @@ struct {
     },
     {
         pn5180_poll_mifare, pn5180_poll_felica, pn5180_poll_vicinity,
-        func_null,
+        pn5180_rf_field,
-        func_null, func_null,
+        pn5180_mifare_auth, pn5180_mifare_read,
         pn5180_set_wait_loop
     },
     { 0 },

firmware/src/lib/pn5180.c

@@ -26,9 +26,11 @@
 #define CMD_READ_EEPROM 0x07
 #define CMD_SEND_DATA 0x09
 #define CMD_READ_DATA 0x0a
+#define CMD_MIFARE_AUTHENTICATE 0x0c
 #define CMD_LOAD_RF_CONFIG 0x11
 #define CMD_RF_ON 0x16
 #define CMD_RF_OFF 0x17
+#define CMD_MIFARE_READ 0x30
 
 static spi_inst_t *spi_port;
 static uint8_t gpio_rst;
@@ -174,15 +176,9 @@ void pn5180_load_rf_config(uint8_t tx_cfg, uint8_t rx_cfg)
     read_write(buf, sizeof(buf), NULL, 0);
 }
 
-void pn5180_rf_on()
+void pn5180_rf_field(bool on)
 {
-    uint8_t buf[] = { CMD_RF_ON, 0 };
+    uint8_t buf[] = { on ? CMD_RF_ON : CMD_RF_OFF, 0 };
-    read_write(buf, sizeof(buf), NULL, 0);
-}
-
-void pn5180_rf_off()
-{
-    uint8_t buf[] = { CMD_RF_OFF, 0 };
     read_write(buf, sizeof(buf), NULL, 0);   
 }
 
@@ -248,7 +244,7 @@ bool pn5180_poll_mifare(uint8_t uid[7], int *len)
 {
     pn5180_reset();
     pn5180_load_rf_config(0x00, 0x80);
-    pn5180_rf_on();
+    pn5180_rf_field(true);
 
     rf_crc_off();
 
@@ -280,8 +276,6 @@ bool pn5180_poll_mifare(uint8_t uid[7], int *len)
         }
     }
 
-    pn5180_rf_off();
-
     return result;
 }
 
@@ -289,7 +283,7 @@ bool pn5180_poll_felica(uint8_t uid[8], uint8_t pmm[8], uint8_t syscode[2], bool
 {
     pn5180_reset();
     pn5180_load_rf_config(0x08, 0x88);
-    pn5180_rf_on();
+    pn5180_rf_field(true);
 
     pn5180_and_reg(PN5180_REG_SYSTEM_CONFIG, 0xffffffbf);
     pn5180_or_reg(PN5180_REG_SYSTEM_CONFIG, 0x03);
@@ -312,8 +306,6 @@ bool pn5180_poll_felica(uint8_t uid[8], uint8_t pmm[8], uint8_t syscode[2], bool
         result = true;
     }
 
-    pn5180_rf_off();
-
     return result;
 }
 
@@ -321,7 +313,7 @@ bool pn5180_poll_vicinity(uint8_t uid[8])
 {
     pn5180_reset();
     pn5180_load_rf_config(0x0d, 0x8d);
-    pn5180_rf_on();
+    pn5180_rf_field(true);
 
     pn5180_clear_irq(0x0fffff);
     pn5180_and_reg(PN5180_REG_SYSTEM_CONFIG, 0xfffffff8);
@@ -333,7 +325,7 @@ bool pn5180_poll_vicinity(uint8_t uid[8])
     sleep_ms(1);
 
     if ((pn5180_get_irq() & 0x4000) == 0) {
-        pn5180_rf_off();
+        pn5180_rf_field(false);
         return false;
     }
 
@@ -356,17 +348,42 @@ bool pn5180_poll_vicinity(uint8_t uid[8])
         result = true;
     }
 
-    pn5180_rf_off();
-    
     return result;
 }
 
-void pn5180_print_rf_cfg()
+bool pn5180_mifare_auth(const uint8_t uid[4], uint8_t block_id, uint8_t key_id, const uint8_t key[6])
 {
-    printf("RF_CONTROL_TX_CLK: %08lx\n", pn5180_read_reg(0x21));
+    uint8_t cmd[] = {
-    printf("TX_DATA_MOD:       %08lx\n", pn5180_read_reg(0x16));
+        CMD_MIFARE_AUTHENTICATE,
-    printf("TX_UNDERSHOOT_CFG: %08lx\n", pn5180_read_reg(0x14));
+        key[0], key[1], key[2], key[3], key[4], key[5],
-    printf("TX_OVERSHOOT_CFG:  %08lx\n", pn5180_read_reg(0x15));
+        key_id ? 0x61 : 0x60, block_id,
-    printf("RF_CONTROL_TX:     %08lx\n", pn5180_read_reg(0x20));
+        uid[0], uid[1], uid[2], uid[3]
-    printf("ANT_CONTROL:       %08lx\n", pn5180_read_reg(0x29));
+    };
+
+    uint8_t response = 0;
+    read_write(cmd, sizeof(cmd), &response, 1);
+
+    if ((response == 1) || (response == 2)) {
+        printf("\nMifare auth failed: %d", response);
+        return false;
+    }
+
+    return true;
+}
+
+bool pn5180_mifare_read(uint8_t block_id, uint8_t block_data[16])
+{
+    uint8_t cmd[] = { CMD_MIFARE_READ, block_id };
+    pn5180_send_data(cmd, sizeof(cmd), 0);
+
+    sleep_ms_with_loop(5);
+
+    uint16_t len = pn5180_get_rx() & 0x1ff;
+    if (len != 16) {
+        printf("\nMifare read error (block %d): %d", block_id, len);
+        return false;
+    }
+
+    pn5180_read_data(block_data, 16);
+    return true;
 }

firmware/src/lib/pn5180.h

@@ -34,8 +34,8 @@ void pn5180_read_data(uint8_t *data, uint8_t len);
 void pn5180_read_eeprom(uint8_t addr, uint8_t *buf, uint8_t len);
 
 void pn5180_load_rf_config(uint8_t tx_cfg, uint8_t rx_cfg);
-void pn5180_rf_on();
+void pn5180_rf_field(bool on);
-void pn5180_rf_off();
+
 
 uint32_t pn5180_get_irq();
 void pn5180_clear_irq(uint32_t mask);
@@ -47,6 +47,7 @@ bool pn5180_poll_mifare(uint8_t uid[7], int *len);
 bool pn5180_poll_felica(uint8_t uid[8], uint8_t pmm[8], uint8_t syscode[2], bool from_cache);
 bool pn5180_poll_vicinity(uint8_t uid[8]);
 
-void pn5180_print_rf_cfg();
+bool pn5180_mifare_auth(const uint8_t uid[4], uint8_t block_id, uint8_t key_id, const uint8_t key[6]);
+bool pn5180_mifare_read(uint8_t block_id, uint8_t block_data[16]);
 
 #endif

firmware/src/lib/pn532.c

@@ -371,7 +371,7 @@ bool pn532_poll_felica(uint8_t uid[8], uint8_t pmm[8], uint8_t syscode[2], bool
     return true;
 }
 
-bool pn532_mifare_auth(const uint8_t uid[4], uint8_t block_id, uint8_t key_id, const uint8_t *key)
+bool pn532_mifare_auth(const uint8_t uid[4], uint8_t block_id, uint8_t key_id, const uint8_t key[6])
 {
     uint8_t param[] = {
         1, key_id ? 0x61 : 0x60, block_id,

firmware/src/lib/pn532.h

@@ -29,7 +29,7 @@ void pn532_rf_field(bool on);
 bool pn532_poll_mifare(uint8_t uid[7], int *len);
 bool pn532_poll_felica(uint8_t uid[8], uint8_t pmm[8], uint8_t syscode[2], bool from_cache);
 
-bool pn532_mifare_auth(const uint8_t uid[4], uint8_t block_id, uint8_t key_id, const uint8_t *key);
+bool pn532_mifare_auth(const uint8_t uid[4], uint8_t block_id, uint8_t key_id, const uint8_t key[6]);
 bool pn532_mifare_read(uint8_t block_id, uint8_t block_data[16]);
 
 bool pn532_felica_read_wo_encrypt(uint16_t svc_code, uint16_t block_id, uint8_t block_data[16]);

firmware/src/main.c

@@ -146,11 +146,10 @@ void detect_card()
         return;
     }
 
-    nfc_rf_field(true);
-
     static nfc_card_t old_card = { 0 };
-    nfc_card_t card = nfc_detect_card();
 
+    nfc_rf_field(true);
+    nfc_card_t card = nfc_detect_card();
     nfc_rf_field(false);
 
     if (memcmp(&old_card, &card, sizeof(old_card)) == 0) {