Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 249 insertions, 0 deletions

diff --git a/drivers/nfc/pn533/pn533.h b/drivers/nfc/pn533/pn533.h
new file mode 100644
index 000000000..09e35b869
--- /dev/null
+++ b/drivers/nfc/pn533/pn533.h
@@ -0,0 +1,249 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Driver for NXP PN533 NFC Chip
+ *
+ * Copyright (C) 2011 Instituto Nokia de Tecnologia
+ * Copyright (C) 2012-2013 Tieto Poland
+ */
+
+#define PN533_DEVICE_STD		0x1
+#define PN533_DEVICE_PASORI		0x2
+#define PN533_DEVICE_ACR122U		0x3
+#define PN533_DEVICE_PN532		0x4
+#define PN533_DEVICE_PN532_AUTOPOLL	0x5
+
+#define PN533_ALL_PROTOCOLS (NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK |\
+			     NFC_PROTO_FELICA_MASK | NFC_PROTO_ISO14443_MASK |\
+			     NFC_PROTO_NFC_DEP_MASK |\
+			     NFC_PROTO_ISO14443_B_MASK)
+
+#define PN533_NO_TYPE_B_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \
+				   NFC_PROTO_MIFARE_MASK | \
+				   NFC_PROTO_FELICA_MASK | \
+				   NFC_PROTO_ISO14443_MASK | \
+				   NFC_PROTO_NFC_DEP_MASK)
+
+/* Standard pn533 frame definitions (standard and extended)*/
+#define PN533_STD_FRAME_HEADER_LEN (sizeof(struct pn533_std_frame) \
+					+ 2) /* data[0] TFI, data[1] CC */
+#define PN533_STD_FRAME_TAIL_LEN 2 /* data[len] DCS, data[len + 1] postamble*/
+
+#define PN533_EXT_FRAME_HEADER_LEN (sizeof(struct pn533_ext_frame) \
+					+ 2) /* data[0] TFI, data[1] CC */
+
+#define PN533_CMD_DATAEXCH_HEAD_LEN 1
+#define PN533_CMD_DATAEXCH_DATA_MAXLEN	262
+#define PN533_CMD_DATAFRAME_MAXLEN	240	/* max data length (send) */
+
+/*
+ * Max extended frame payload len, excluding TFI and CC
+ * which are already in PN533_FRAME_HEADER_LEN.
+ */
+#define PN533_STD_FRAME_MAX_PAYLOAD_LEN 263
+
+
+/* Preamble (1), SoPC (2), ACK Code (2), Postamble (1) */
+#define PN533_STD_FRAME_ACK_SIZE 6
+/*
+ * Preamble (1), SoPC (2), Packet Length (1), Packet Length Checksum (1),
+ * Specific Application Level Error Code (1) , Postamble (1)
+ */
+#define PN533_STD_ERROR_FRAME_SIZE 8
+#define PN533_STD_FRAME_CHECKSUM(f) (f->data[f->datalen])
+#define PN533_STD_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1])
+/* Half start code (3), LEN (4) should be 0xffff for extended frame */
+#define PN533_STD_IS_EXTENDED(hdr) ((hdr)->datalen == 0xFF \
+					&& (hdr)->datalen_checksum == 0xFF)
+#define PN533_EXT_FRAME_CHECKSUM(f) (f->data[be16_to_cpu(f->datalen)])
+
+/* start of frame */
+#define PN533_STD_FRAME_SOF 0x00FF
+
+/* standard frame identifier: in/out/error */
+#define PN533_STD_FRAME_IDENTIFIER(f) (f->data[0]) /* TFI */
+#define PN533_STD_FRAME_DIR_OUT 0xD4
+#define PN533_STD_FRAME_DIR_IN 0xD5
+
+/* PN533 Commands */
+#define PN533_FRAME_CMD(f) (f->data[1])
+
+#define PN533_CMD_GET_FIRMWARE_VERSION 0x02
+#define PN533_CMD_SAM_CONFIGURATION 0x14
+#define PN533_CMD_RF_CONFIGURATION 0x32
+#define PN533_CMD_IN_DATA_EXCHANGE 0x40
+#define PN533_CMD_IN_COMM_THRU     0x42
+#define PN533_CMD_IN_LIST_PASSIVE_TARGET 0x4A
+#define PN533_CMD_IN_ATR 0x50
+#define PN533_CMD_IN_RELEASE 0x52
+#define PN533_CMD_IN_JUMP_FOR_DEP 0x56
+#define PN533_CMD_IN_AUTOPOLL 0x60
+
+#define PN533_CMD_TG_INIT_AS_TARGET 0x8c
+#define PN533_CMD_TG_GET_DATA 0x86
+#define PN533_CMD_TG_SET_DATA 0x8e
+#define PN533_CMD_TG_SET_META_DATA 0x94
+#define PN533_CMD_UNDEF 0xff
+
+#define PN533_CMD_RESPONSE(cmd) (cmd + 1)
+
+/* PN533 Return codes */
+#define PN533_CMD_RET_MASK 0x3F
+#define PN533_CMD_MI_MASK 0x40
+#define PN533_CMD_RET_SUCCESS 0x00
+
+#define PN533_FRAME_DATALEN_ACK 0x00
+#define PN533_FRAME_DATALEN_ERROR 0x01
+#define PN533_FRAME_DATALEN_EXTENDED 0xFF
+
+enum  pn533_protocol_type {
+	PN533_PROTO_REQ_ACK_RESP = 0,
+	PN533_PROTO_REQ_RESP
+};
+
+/* Poll modulations */
+enum {
+	PN533_POLL_MOD_106KBPS_A,
+	PN533_POLL_MOD_212KBPS_FELICA,
+	PN533_POLL_MOD_424KBPS_FELICA,
+	PN533_POLL_MOD_106KBPS_JEWEL,
+	PN533_POLL_MOD_847KBPS_B,
+	PN533_LISTEN_MOD,
+
+	__PN533_POLL_MOD_AFTER_LAST,
+};
+#define PN533_POLL_MOD_MAX (__PN533_POLL_MOD_AFTER_LAST - 1)
+
+struct pn533_std_frame {
+	u8 preamble;
+	__be16 start_frame;
+	u8 datalen;
+	u8 datalen_checksum;
+	u8 data[];
+} __packed;
+
+struct pn533_ext_frame {	/* Extended Information frame */
+	u8 preamble;
+	__be16 start_frame;
+	__be16 eif_flag;	/* fixed to 0xFFFF */
+	__be16 datalen;
+	u8 datalen_checksum;
+	u8 data[];
+} __packed;
+
+struct pn533 {
+	struct nfc_dev *nfc_dev;
+	u32 device_type;
+	enum pn533_protocol_type protocol_type;
+
+	struct sk_buff_head resp_q;
+	struct sk_buff_head fragment_skb;
+
+	struct workqueue_struct	*wq;
+	struct work_struct cmd_work;
+	struct work_struct cmd_complete_work;
+	struct delayed_work poll_work;
+	struct work_struct mi_rx_work;
+	struct work_struct mi_tx_work;
+	struct work_struct mi_tm_rx_work;
+	struct work_struct mi_tm_tx_work;
+	struct work_struct tg_work;
+	struct work_struct rf_work;
+
+	struct list_head cmd_queue;
+	struct pn533_cmd *cmd;
+	u8 cmd_pending;
+	struct mutex cmd_lock;  /* protects cmd queue */
+
+	void *cmd_complete_mi_arg;
+	void *cmd_complete_dep_arg;
+
+	struct pn533_poll_modulations *poll_mod_active[PN533_POLL_MOD_MAX + 1];
+	u8 poll_mod_count;
+	u8 poll_mod_curr;
+	u8 poll_dep;
+	u32 poll_protocols;
+	u32 listen_protocols;
+	struct timer_list listen_timer;
+	int cancel_listen;
+
+	u8 *gb;
+	size_t gb_len;
+
+	u8 tgt_available_prots;
+	u8 tgt_active_prot;
+	u8 tgt_mode;
+
+	struct pn533_frame_ops *ops;
+
+	struct device *dev;
+	void *phy;
+	const struct pn533_phy_ops *phy_ops;
+};
+
+typedef int (*pn533_send_async_complete_t) (struct pn533 *dev, void *arg,
+					struct sk_buff *resp);
+
+struct pn533_cmd {
+	struct list_head queue;
+	u8 code;
+	int status;
+	struct sk_buff *req;
+	struct sk_buff *resp;
+	pn533_send_async_complete_t  complete_cb;
+	void *complete_cb_context;
+};
+
+
+struct pn533_frame_ops {
+	void (*tx_frame_init)(void *frame, u8 cmd_code);
+	void (*tx_frame_finish)(void *frame);
+	void (*tx_update_payload_len)(void *frame, int len);
+	int tx_header_len;
+	int tx_tail_len;
+
+	bool (*rx_is_frame_valid)(void *frame, struct pn533 *dev);
+	bool (*rx_frame_is_ack)(void *frame);
+	int (*rx_frame_size)(void *frame);
+	int rx_header_len;
+	int rx_tail_len;
+
+	int max_payload_len;
+	u8 (*get_cmd_code)(void *frame);
+};
+
+
+struct pn533_phy_ops {
+	int (*send_frame)(struct pn533 *priv,
+			  struct sk_buff *out);
+	int (*send_ack)(struct pn533 *dev, gfp_t flags);
+	void (*abort_cmd)(struct pn533 *priv, gfp_t flags);
+	/*
+	 * dev_up and dev_down are optional.
+	 * They are used to inform the phy layer that the nfc chip
+	 * is going to be really used very soon. The phy layer can then
+	 * bring up it's interface to the chip and have it suspended for power
+	 * saving reasons otherwise.
+	 */
+	int (*dev_up)(struct pn533 *priv);
+	int (*dev_down)(struct pn533 *priv);
+};
+
+
+struct pn533 *pn53x_common_init(u32 device_type,
+				enum pn533_protocol_type protocol_type,
+				void *phy,
+				const struct pn533_phy_ops *phy_ops,
+				struct pn533_frame_ops *fops,
+				struct device *dev);
+
+int pn533_finalize_setup(struct pn533 *dev);
+void pn53x_common_clean(struct pn533 *priv);
+void pn533_recv_frame(struct pn533 *dev, struct sk_buff *skb, int status);
+int pn532_i2c_nfc_alloc(struct pn533 *priv, u32 protocols,
+			struct device *parent);
+int pn53x_register_nfc(struct pn533 *priv, u32 protocols,
+			struct device *parent);
+void pn53x_unregister_nfc(struct pn533 *priv);
+
+bool pn533_rx_frame_is_cmd_response(struct pn533 *dev, void *frame);
+bool pn533_rx_frame_is_ack(void *_frame);