drivers/nfc/st21nfca/st21nfca.h

Source file repositories/reference/linux-study-clean/drivers/nfc/st21nfca/st21nfca.h

File Facts

System
Linux kernel
Corpus path
drivers/nfc/st21nfca/st21nfca.h
Extension
.h
Size
5912 bytes
Lines
202
Domain
Driver Families
Bucket
drivers/nfc
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct st21nfca_se_status {
	bool is_ese_present;
	bool is_uicc_present;
};

enum st21nfca_state {
	ST21NFCA_ST_COLD,
	ST21NFCA_ST_READY,
};

/**
 * enum nfc_vendor_cmds - supported nfc vendor commands
 *
 * @FACTORY_MODE: Allow to set the driver into a mode where no secure element
 *	are activated. It does not consider any NFC_ATTR_VENDOR_DATA.
 * @HCI_CLEAR_ALL_PIPES: Allow to execute a HCI clear all pipes command.
 *	It does not consider any NFC_ATTR_VENDOR_DATA.
 * @HCI_DM_PUT_DATA: Allow to configure specific CLF registry as for example
 *	RF trimmings or low level drivers configurations (I2C, SPI, SWP).
 * @HCI_DM_UPDATE_AID: Allow to configure an AID routing into the CLF routing
 *	table following RF technology, CLF mode or protocol.
 * @HCI_DM_GET_INFO: Allow to retrieve CLF information.
 * @HCI_DM_GET_DATA: Allow to retrieve CLF configurable data such as low
 *	level drivers configurations or RF trimmings.
 * @HCI_DM_LOAD: Allow to load a firmware into the CLF. A complete
 *	packet can be more than 8KB.
 * @HCI_DM_RESET: Allow to run a CLF reset in order to "commit" CLF
 *	configuration changes without CLF power off.
 * @HCI_GET_PARAM: Allow to retrieve an HCI CLF parameter (for example the
 *	white list).
 * @HCI_DM_FIELD_GENERATOR: Allow to generate different kind of RF
 *	technology. When using this command to anti-collision is done.
 * @HCI_LOOPBACK: Allow to echo a command and test the Dh to CLF
 *	connectivity.
 */
enum nfc_vendor_cmds {
	FACTORY_MODE,
	HCI_CLEAR_ALL_PIPES,
	HCI_DM_PUT_DATA,
	HCI_DM_UPDATE_AID,
	HCI_DM_GET_INFO,
	HCI_DM_GET_DATA,
	HCI_DM_LOAD,
	HCI_DM_RESET,
	HCI_GET_PARAM,
	HCI_DM_FIELD_GENERATOR,
	HCI_LOOPBACK,
};

struct st21nfca_vendor_info {
	struct completion req_completion;
	struct sk_buff *rx_skb;
};

struct st21nfca_dep_info {
	struct sk_buff *tx_pending;
	struct work_struct tx_work;
	u8 curr_nfc_dep_pni;
	u32 idx;
	u8 to;
	u8 did;
	u8 bsi;
	u8 bri;
	u8 lri;
} __packed;

struct st21nfca_se_info {
	u8 atr[ST21NFCA_ESE_MAX_LENGTH];
	struct completion req_completion;

	struct timer_list bwi_timer;
	int wt_timeout; /* in msecs */
	bool bwi_active;

	struct timer_list se_active_timer;
	bool se_active;
	int expected_pipes;
	int count_pipes;

	bool xch_error;

	se_io_cb_t cb;
	void *cb_context;
	struct work_struct timeout_work;
};

struct st21nfca_hci_info {
	const struct nfc_phy_ops *phy_ops;
	void *phy_id;

Annotation

Implementation Notes