diff options
Diffstat (limited to 'drivers/nfc/port100.c')
-rw-r--r-- | drivers/nfc/port100.c | 1529 |
1 files changed, 0 insertions, 1529 deletions
diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c deleted file mode 100644 index 8a0571e..0000000 --- a/drivers/nfc/port100.c +++ /dev/null @@ -1,1529 +0,0 @@ -/* - * Sony NFC Port-100 Series driver - * Copyright (c) 2013, Intel Corporation. - * - * Partly based/Inspired by Stephen Tiedemann's nfcpy - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - */ - -#include <linux/module.h> -#include <linux/usb.h> -#include <net/nfc/digital.h> - -#define VERSION "0.1" - -#define SONY_VENDOR_ID 0x054c -#define RCS380_PRODUCT_ID 0x06c1 - -#define PORT100_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \ - NFC_PROTO_MIFARE_MASK | \ - NFC_PROTO_FELICA_MASK | \ - NFC_PROTO_NFC_DEP_MASK) - -#define PORT100_CAPABILITIES (NFC_DIGITAL_DRV_CAPS_IN_CRC | \ - NFC_DIGITAL_DRV_CAPS_TG_CRC) - -/* Standard port100 frame definitions */ -#define PORT100_FRAME_HEADER_LEN (sizeof(struct port100_frame) \ - + 2) /* data[0] CC, data[1] SCC */ -#define PORT100_FRAME_TAIL_LEN 2 /* data[len] DCS, data[len + 1] postamble*/ - -#define PORT100_COMM_RF_HEAD_MAX_LEN (sizeof(struct port100_tg_comm_rf_cmd)) - -/* - * Max extended frame payload len, excluding CC and SCC - * which are already in PORT100_FRAME_HEADER_LEN. - */ -#define PORT100_FRAME_MAX_PAYLOAD_LEN 1001 - -#define PORT100_FRAME_ACK_SIZE 6 /* Preamble (1), SoPC (2), ACK Code (2), - Postamble (1) */ -static u8 ack_frame[PORT100_FRAME_ACK_SIZE] = { - 0x00, 0x00, 0xff, 0x00, 0xff, 0x00 -}; - -#define PORT100_FRAME_CHECKSUM(f) (f->data[le16_to_cpu(f->datalen)]) -#define PORT100_FRAME_POSTAMBLE(f) (f->data[le16_to_cpu(f->datalen) + 1]) - -/* start of frame */ -#define PORT100_FRAME_SOF 0x00FF -#define PORT100_FRAME_EXT 0xFFFF -#define PORT100_FRAME_ACK 0x00FF - -/* Port-100 command: in or out */ -#define PORT100_FRAME_DIRECTION(f) (f->data[0]) /* CC */ -#define PORT100_FRAME_DIR_OUT 0xD6 -#define PORT100_FRAME_DIR_IN 0xD7 - -/* Port-100 sub-command */ -#define PORT100_FRAME_CMD(f) (f->data[1]) /* SCC */ - -#define PORT100_CMD_GET_FIRMWARE_VERSION 0x20 -#define PORT100_CMD_GET_COMMAND_TYPE 0x28 -#define PORT100_CMD_SET_COMMAND_TYPE 0x2A - -#define PORT100_CMD_IN_SET_RF 0x00 -#define PORT100_CMD_IN_SET_PROTOCOL 0x02 -#define PORT100_CMD_IN_COMM_RF 0x04 - -#define PORT100_CMD_TG_SET_RF 0x40 -#define PORT100_CMD_TG_SET_PROTOCOL 0x42 -#define PORT100_CMD_TG_SET_RF_OFF 0x46 -#define PORT100_CMD_TG_COMM_RF 0x48 - -#define PORT100_CMD_SWITCH_RF 0x06 - -#define PORT100_CMD_RESPONSE(cmd) (cmd + 1) - -#define PORT100_CMD_TYPE_IS_SUPPORTED(mask, cmd_type) \ - ((mask) & (0x01 << (cmd_type))) -#define PORT100_CMD_TYPE_0 0 -#define PORT100_CMD_TYPE_1 1 - -#define PORT100_CMD_STATUS_OK 0x00 -#define PORT100_CMD_STATUS_TIMEOUT 0x80 - -#define PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK 0x01 -#define PORT100_MDAA_TGT_WAS_ACTIVATED_MASK 0x02 - -struct port100; - -typedef void (*port100_send_async_complete_t)(struct port100 *dev, void *arg, - struct sk_buff *resp); - -/** - * Setting sets structure for in_set_rf command - * - * @in_*_set_number: Represent the entry indexes in the port-100 RF Base Table. - * This table contains multiple RF setting sets required for RF - * communication. - * - * @in_*_comm_type: Theses fields set the communication type to be used. - */ -struct port100_in_rf_setting { - u8 in_send_set_number; - u8 in_send_comm_type; - u8 in_recv_set_number; - u8 in_recv_comm_type; -} __packed; - -#define PORT100_COMM_TYPE_IN_212F 0x01 -#define PORT100_COMM_TYPE_IN_424F 0x02 -#define PORT100_COMM_TYPE_IN_106A 0x03 - -static const struct port100_in_rf_setting in_rf_settings[] = { - [NFC_DIGITAL_RF_TECH_212F] = { - .in_send_set_number = 1, - .in_send_comm_type = PORT100_COMM_TYPE_IN_212F, - .in_recv_set_number = 15, - .in_recv_comm_type = PORT100_COMM_TYPE_IN_212F, - }, - [NFC_DIGITAL_RF_TECH_424F] = { - .in_send_set_number = 1, - .in_send_comm_type = PORT100_COMM_TYPE_IN_424F, - .in_recv_set_number = 15, - .in_recv_comm_type = PORT100_COMM_TYPE_IN_424F, - }, - [NFC_DIGITAL_RF_TECH_106A] = { - .in_send_set_number = 2, - .in_send_comm_type = PORT100_COMM_TYPE_IN_106A, - .in_recv_set_number = 15, - .in_recv_comm_type = PORT100_COMM_TYPE_IN_106A, - }, -}; - -/** - * Setting sets structure for tg_set_rf command - * - * @tg_set_number: Represents the entry index in the port-100 RF Base Table. - * This table contains multiple RF setting sets required for RF - * communication. this field is used for both send and receive - * settings. - * - * @tg_comm_type: Sets the communication type to be used to send and receive - * data. - */ -struct port100_tg_rf_setting { - u8 tg_set_number; - u8 tg_comm_type; -} __packed; - -#define PORT100_COMM_TYPE_TG_106A 0x0B -#define PORT100_COMM_TYPE_TG_212F 0x0C -#define PORT100_COMM_TYPE_TG_424F 0x0D - -static const struct port100_tg_rf_setting tg_rf_settings[] = { - [NFC_DIGITAL_RF_TECH_106A] = { - .tg_set_number = 8, - .tg_comm_type = PORT100_COMM_TYPE_TG_106A, - }, - [NFC_DIGITAL_RF_TECH_212F] = { - .tg_set_number = 8, - .tg_comm_type = PORT100_COMM_TYPE_TG_212F, - }, - [NFC_DIGITAL_RF_TECH_424F] = { - .tg_set_number = 8, - .tg_comm_type = PORT100_COMM_TYPE_TG_424F, - }, -}; - -#define PORT100_IN_PROT_INITIAL_GUARD_TIME 0x00 -#define PORT100_IN_PROT_ADD_CRC 0x01 -#define PORT100_IN_PROT_CHECK_CRC 0x02 -#define PORT100_IN_PROT_MULTI_CARD 0x03 -#define PORT100_IN_PROT_ADD_PARITY 0x04 -#define PORT100_IN_PROT_CHECK_PARITY 0x05 -#define PORT100_IN_PROT_BITWISE_AC_RECV_MODE 0x06 -#define PORT100_IN_PROT_VALID_BIT_NUMBER 0x07 -#define PORT100_IN_PROT_CRYPTO1 0x08 -#define PORT100_IN_PROT_ADD_SOF 0x09 -#define PORT100_IN_PROT_CHECK_SOF 0x0A -#define PORT100_IN_PROT_ADD_EOF 0x0B -#define PORT100_IN_PROT_CHECK_EOF 0x0C -#define PORT100_IN_PROT_DEAF_TIME 0x0E -#define PORT100_IN_PROT_CRM 0x0F -#define PORT100_IN_PROT_CRM_MIN_LEN 0x10 -#define PORT100_IN_PROT_T1_TAG_FRAME 0x11 -#define PORT100_IN_PROT_RFCA 0x12 -#define PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR 0x13 -#define PORT100_IN_PROT_END 0x14 - -#define PORT100_IN_MAX_NUM_PROTOCOLS 19 - -#define PORT100_TG_PROT_TU 0x00 -#define PORT100_TG_PROT_RF_OFF 0x01 -#define PORT100_TG_PROT_CRM 0x02 -#define PORT100_TG_PROT_END 0x03 - -#define PORT100_TG_MAX_NUM_PROTOCOLS 3 - -struct port100_protocol { - u8 number; - u8 value; -} __packed; - -static struct port100_protocol -in_protocols[][PORT100_IN_MAX_NUM_PROTOCOLS + 1] = { - [NFC_DIGITAL_FRAMING_NFCA_SHORT] = { - { PORT100_IN_PROT_INITIAL_GUARD_TIME, 6 }, - { PORT100_IN_PROT_ADD_CRC, 0 }, - { PORT100_IN_PROT_CHECK_CRC, 0 }, - { PORT100_IN_PROT_MULTI_CARD, 0 }, - { PORT100_IN_PROT_ADD_PARITY, 0 }, - { PORT100_IN_PROT_CHECK_PARITY, 1 }, - { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, - { PORT100_IN_PROT_VALID_BIT_NUMBER, 7 }, - { PORT100_IN_PROT_CRYPTO1, 0 }, - { PORT100_IN_PROT_ADD_SOF, 0 }, - { PORT100_IN_PROT_CHECK_SOF, 0 }, - { PORT100_IN_PROT_ADD_EOF, 0 }, - { PORT100_IN_PROT_CHECK_EOF, 0 }, - { PORT100_IN_PROT_DEAF_TIME, 4 }, - { PORT100_IN_PROT_CRM, 0 }, - { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, - { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, - { PORT100_IN_PROT_RFCA, 0 }, - { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, - { PORT100_IN_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCA_STANDARD] = { - { PORT100_IN_PROT_INITIAL_GUARD_TIME, 6 }, - { PORT100_IN_PROT_ADD_CRC, 0 }, - { PORT100_IN_PROT_CHECK_CRC, 0 }, - { PORT100_IN_PROT_MULTI_CARD, 0 }, - { PORT100_IN_PROT_ADD_PARITY, 1 }, - { PORT100_IN_PROT_CHECK_PARITY, 1 }, - { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, - { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, - { PORT100_IN_PROT_CRYPTO1, 0 }, - { PORT100_IN_PROT_ADD_SOF, 0 }, - { PORT100_IN_PROT_CHECK_SOF, 0 }, - { PORT100_IN_PROT_ADD_EOF, 0 }, - { PORT100_IN_PROT_CHECK_EOF, 0 }, - { PORT100_IN_PROT_DEAF_TIME, 4 }, - { PORT100_IN_PROT_CRM, 0 }, - { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, - { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, - { PORT100_IN_PROT_RFCA, 0 }, - { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, - { PORT100_IN_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A] = { - { PORT100_IN_PROT_INITIAL_GUARD_TIME, 6 }, - { PORT100_IN_PROT_ADD_CRC, 1 }, - { PORT100_IN_PROT_CHECK_CRC, 1 }, - { PORT100_IN_PROT_MULTI_CARD, 0 }, - { PORT100_IN_PROT_ADD_PARITY, 1 }, - { PORT100_IN_PROT_CHECK_PARITY, 1 }, - { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, - { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, - { PORT100_IN_PROT_CRYPTO1, 0 }, - { PORT100_IN_PROT_ADD_SOF, 0 }, - { PORT100_IN_PROT_CHECK_SOF, 0 }, - { PORT100_IN_PROT_ADD_EOF, 0 }, - { PORT100_IN_PROT_CHECK_EOF, 0 }, - { PORT100_IN_PROT_DEAF_TIME, 4 }, - { PORT100_IN_PROT_CRM, 0 }, - { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, - { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, - { PORT100_IN_PROT_RFCA, 0 }, - { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, - { PORT100_IN_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCA_T1T] = { - /* nfc_digital_framing_nfca_short */ - { PORT100_IN_PROT_ADD_CRC, 2 }, - { PORT100_IN_PROT_CHECK_CRC, 2 }, - { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, - { PORT100_IN_PROT_T1_TAG_FRAME, 2 }, - { PORT100_IN_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCA_T2T] = { - /* nfc_digital_framing_nfca_standard */ - { PORT100_IN_PROT_ADD_CRC, 1 }, - { PORT100_IN_PROT_CHECK_CRC, 0 }, - { PORT100_IN_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCA_NFC_DEP] = { - /* nfc_digital_framing_nfca_standard */ - { PORT100_IN_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCF] = { - { PORT100_IN_PROT_INITIAL_GUARD_TIME, 18 }, - { PORT100_IN_PROT_ADD_CRC, 1 }, - { PORT100_IN_PROT_CHECK_CRC, 1 }, - { PORT100_IN_PROT_MULTI_CARD, 0 }, - { PORT100_IN_PROT_ADD_PARITY, 0 }, - { PORT100_IN_PROT_CHECK_PARITY, 0 }, - { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, - { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, - { PORT100_IN_PROT_CRYPTO1, 0 }, - { PORT100_IN_PROT_ADD_SOF, 0 }, - { PORT100_IN_PROT_CHECK_SOF, 0 }, - { PORT100_IN_PROT_ADD_EOF, 0 }, - { PORT100_IN_PROT_CHECK_EOF, 0 }, - { PORT100_IN_PROT_DEAF_TIME, 4 }, - { PORT100_IN_PROT_CRM, 0 }, - { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, - { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, - { PORT100_IN_PROT_RFCA, 0 }, - { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, - { PORT100_IN_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCF_T3T] = { - /* nfc_digital_framing_nfcf */ - { PORT100_IN_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCF_NFC_DEP] = { - /* nfc_digital_framing_nfcf */ - { PORT100_IN_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED] = { - { PORT100_IN_PROT_END, 0 }, - }, -}; - -static struct port100_protocol -tg_protocols[][PORT100_TG_MAX_NUM_PROTOCOLS + 1] = { - [NFC_DIGITAL_FRAMING_NFCA_SHORT] = { - { PORT100_TG_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCA_STANDARD] = { - { PORT100_TG_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A] = { - { PORT100_TG_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCA_T1T] = { - { PORT100_TG_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCA_T2T] = { - { PORT100_TG_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCA_NFC_DEP] = { - { PORT100_TG_PROT_TU, 1 }, - { PORT100_TG_PROT_RF_OFF, 0 }, - { PORT100_TG_PROT_CRM, 7 }, - { PORT100_TG_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCF] = { - { PORT100_TG_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCF_T3T] = { - { PORT100_TG_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFCF_NFC_DEP] = { - { PORT100_TG_PROT_TU, 1 }, - { PORT100_TG_PROT_RF_OFF, 0 }, - { PORT100_TG_PROT_CRM, 7 }, - { PORT100_TG_PROT_END, 0 }, - }, - [NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED] = { - { PORT100_TG_PROT_RF_OFF, 1 }, - { PORT100_TG_PROT_END, 0 }, - }, -}; - -struct port100 { - struct nfc_digital_dev *nfc_digital_dev; - - int skb_headroom; - int skb_tailroom; - - struct usb_device *udev; - struct usb_interface *interface; - - struct urb *out_urb; - struct urb *in_urb; - - struct work_struct cmd_complete_work; - - u8 cmd_type; - - /* The digital stack serializes commands to be sent. There is no need - * for any queuing/locking mechanism at driver level. - */ - struct port100_cmd *cmd; -}; - -struct port100_cmd { - u8 code; - int status; - struct sk_buff *req; - struct sk_buff *resp; - int resp_len; - port100_send_async_complete_t complete_cb; - void *complete_cb_context; -}; - -struct port100_frame { - u8 preamble; - __be16 start_frame; - __be16 extended_frame; - __le16 datalen; - u8 datalen_checksum; - u8 data[]; -} __packed; - -struct port100_ack_frame { - u8 preamble; - __be16 start_frame; - __be16 ack_frame; - u8 postambule; -} __packed; - -struct port100_cb_arg { - nfc_digital_cmd_complete_t complete_cb; - void *complete_arg; - u8 mdaa; -}; - -struct port100_tg_comm_rf_cmd { - __le16 guard_time; - __le16 send_timeout; - u8 mdaa; - u8 nfca_param[6]; - u8 nfcf_param[18]; - u8 mf_halted; - u8 arae_flag; - __le16 recv_timeout; - u8 data[]; -} __packed; - -struct port100_tg_comm_rf_res { - u8 comm_type; - u8 ar_status; - u8 target_activated; - __le32 status; - u8 data[]; -} __packed; - -/* The rule: value + checksum = 0 */ -static inline u8 port100_checksum(u16 value) -{ - return ~(((u8 *)&value)[0] + ((u8 *)&value)[1]) + 1; -} - -/* The rule: sum(data elements) + checksum = 0 */ -static u8 port100_data_checksum(u8 *data, int datalen) -{ - u8 sum = 0; - int i; - - for (i = 0; i < datalen; i++) - sum += data[i]; - - return port100_checksum(sum); -} - -static void port100_tx_frame_init(void *_frame, u8 cmd_code) -{ - struct port100_frame *frame = _frame; - - frame->preamble = 0; - frame->start_frame = cpu_to_be16(PORT100_FRAME_SOF); - frame->extended_frame = cpu_to_be16(PORT100_FRAME_EXT); - PORT100_FRAME_DIRECTION(frame) = PORT100_FRAME_DIR_OUT; - PORT100_FRAME_CMD(frame) = cmd_code; - frame->datalen = cpu_to_le16(2); -} - -static void port100_tx_frame_finish(void *_frame) -{ - struct port100_frame *frame = _frame; - - frame->datalen_checksum = port100_checksum(le16_to_cpu(frame->datalen)); - - PORT100_FRAME_CHECKSUM(frame) = - port100_data_checksum(frame->data, le16_to_cpu(frame->datalen)); - - PORT100_FRAME_POSTAMBLE(frame) = 0; -} - -static void port100_tx_update_payload_len(void *_frame, int len) -{ - struct port100_frame *frame = _frame; - - frame->datalen = cpu_to_le16(le16_to_cpu(frame->datalen) + len); -} - -static bool port100_rx_frame_is_valid(void *_frame) -{ - u8 checksum; - struct port100_frame *frame = _frame; - - if (frame->start_frame != cpu_to_be16(PORT100_FRAME_SOF) || - frame->extended_frame != cpu_to_be16(PORT100_FRAME_EXT)) - return false; - - checksum = port100_checksum(le16_to_cpu(frame->datalen)); - if (checksum != frame->datalen_checksum) - return false; - - checksum = port100_data_checksum(frame->data, - le16_to_cpu(frame->datalen)); - if (checksum != PORT100_FRAME_CHECKSUM(frame)) - return false; - - return true; -} - -static bool port100_rx_frame_is_ack(struct port100_ack_frame *frame) -{ - return (frame->start_frame == cpu_to_be16(PORT100_FRAME_SOF) && - frame->ack_frame == cpu_to_be16(PORT100_FRAME_ACK)); -} - -static inline int port100_rx_frame_size(void *frame) -{ - struct port100_frame *f = frame; - - return sizeof(struct port100_frame) + le16_to_cpu(f->datalen) + - PORT100_FRAME_TAIL_LEN; -} - -static bool port100_rx_frame_is_cmd_response(struct port100 *dev, void *frame) -{ - struct port100_frame *f = frame; - - return (PORT100_FRAME_CMD(f) == PORT100_CMD_RESPONSE(dev->cmd->code)); -} - -static void port100_recv_response(struct urb *urb) -{ - struct port100 *dev = urb->context; - struct port100_cmd *cmd = dev->cmd; - u8 *in_frame; - - cmd->status = urb->status; - - switch (urb->status) { - case 0: - break; /* success */ - case -ECONNRESET: - case -ENOENT: - nfc_err(&dev->interface->dev, - "The urb has been canceled (status %d)", urb->status); - goto sched_wq; - case -ESHUTDOWN: - default: - nfc_err(&dev->interface->dev, "Urb failure (status %d)", - urb->status); - goto sched_wq; - } - - in_frame = dev->in_urb->transfer_buffer; - - if (!port100_rx_frame_is_valid(in_frame)) { - nfc_err(&dev->interface->dev, "Received an invalid frame"); - cmd->status = -EIO; - goto sched_wq; - } - - print_hex_dump_debug("PORT100 RX: ", DUMP_PREFIX_NONE, 16, 1, in_frame, - port100_rx_frame_size(in_frame), false); - - if (!port100_rx_frame_is_cmd_response(dev, in_frame)) { - nfc_err(&dev->interface->dev, - "It's not the response to the last command"); - cmd->status = -EIO; - goto sched_wq; - } - -sched_wq: - schedule_work(&dev->cmd_complete_work); -} - -static int port100_submit_urb_for_response(struct port100 *dev, gfp_t flags) -{ - dev->in_urb->complete = port100_recv_response; - - return usb_submit_urb(dev->in_urb, flags); -} - -static void port100_recv_ack(struct urb *urb) -{ - struct port100 *dev = urb->context; - struct port100_cmd *cmd = dev->cmd; - struct port100_ack_frame *in_frame; - int rc; - - cmd->status = urb->status; - - switch (urb->status) { - case 0: - break; /* success */ - case -ECONNRESET: - case -ENOENT: - nfc_err(&dev->interface->dev, - "The urb has been stopped (status %d)", urb->status); - goto sched_wq; - case -ESHUTDOWN: - default: - nfc_err(&dev->interface->dev, "Urb failure (status %d)", - urb->status); - goto sched_wq; - } - - in_frame = dev->in_urb->transfer_buffer; - - if (!port100_rx_frame_is_ack(in_frame)) { - nfc_err(&dev->interface->dev, "Received an invalid ack"); - cmd->status = -EIO; - goto sched_wq; - } - - rc = port100_submit_urb_for_response(dev, GFP_ATOMIC); - if (rc) { - nfc_err(&dev->interface->dev, - "usb_submit_urb failed with result %d", rc); - cmd->status = rc; - goto sched_wq; - } - - return; - -sched_wq: - schedule_work(&dev->cmd_complete_work); -} - -static int port100_submit_urb_for_ack(struct port100 *dev, gfp_t flags) -{ - dev->in_urb->complete = port100_recv_ack; - - return usb_submit_urb(dev->in_urb, flags); -} - -static int port100_send_ack(struct port100 *dev) -{ - int rc; - - dev->out_urb->transfer_buffer = ack_frame; - dev->out_urb->transfer_buffer_length = sizeof(ack_frame); - rc = usb_submit_urb(dev->out_urb, GFP_KERNEL); - - return rc; -} - -static int port100_send_frame_async(struct port100 *dev, struct sk_buff *out, - struct sk_buff *in, int in_len) -{ - int rc; - - dev->out_urb->transfer_buffer = out->data; - dev->out_urb->transfer_buffer_length = out->len; - - dev->in_urb->transfer_buffer = in->data; - dev->in_urb->transfer_buffer_length = in_len; - - print_hex_dump_debug("PORT100 TX: ", DUMP_PREFIX_NONE, 16, 1, - out->data, out->len, false); - - rc = usb_submit_urb(dev->out_urb, GFP_KERNEL); - if (rc) - return rc; - - rc = port100_submit_urb_for_ack(dev, GFP_KERNEL); - if (rc) - goto error; - - return 0; - -error: - usb_unlink_urb(dev->out_urb); - return rc; -} - -static void port100_build_cmd_frame(struct port100 *dev, u8 cmd_code, - struct sk_buff *skb) -{ - /* payload is already there, just update datalen */ - int payload_len = skb->len; - - skb_push(skb, PORT100_FRAME_HEADER_LEN); - skb_put(skb, PORT100_FRAME_TAIL_LEN); - - port100_tx_frame_init(skb->data, cmd_code); - port100_tx_update_payload_len(skb->data, payload_len); - port100_tx_frame_finish(skb->data); -} - -static void port100_send_async_complete(struct port100 *dev) -{ - struct port100_cmd *cmd = dev->cmd; - int status = cmd->status; - - struct sk_buff *req = cmd->req; - struct sk_buff *resp = cmd->resp; - - dev_kfree_skb(req); - - dev->cmd = NULL; - - if (status < 0) { - cmd->complete_cb(dev, cmd->complete_cb_context, - ERR_PTR(status)); - dev_kfree_skb(resp); - goto done; - } - - skb_put(resp, port100_rx_frame_size(resp->data)); - skb_pull(resp, PORT100_FRAME_HEADER_LEN); - skb_trim(resp, resp->len - PORT100_FRAME_TAIL_LEN); - - cmd->complete_cb(dev, cmd->complete_cb_context, resp); - -done: - kfree(cmd); -} - -static int port100_send_cmd_async(struct port100 *dev, u8 cmd_code, - struct sk_buff *req, - port100_send_async_complete_t complete_cb, - void *complete_cb_context) -{ - struct port100_cmd *cmd; - struct sk_buff *resp; - int rc; - int resp_len = PORT100_FRAME_HEADER_LEN + - PORT100_FRAME_MAX_PAYLOAD_LEN + - PORT100_FRAME_TAIL_LEN; - - resp = alloc_skb(resp_len, GFP_KERNEL); - if (!resp) - return -ENOMEM; - - cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); - if (!cmd) { - dev_kfree_skb(resp); - return -ENOMEM; - } - - cmd->code = cmd_code; - cmd->req = req; - cmd->resp = resp; - cmd->resp_len = resp_len; - cmd->complete_cb = complete_cb; - cmd->complete_cb_context = complete_cb_context; - - port100_build_cmd_frame(dev, cmd_code, req); - - dev->cmd = cmd; - - rc = port100_send_frame_async(dev, req, resp, resp_len); - if (rc) { - kfree(cmd); - dev_kfree_skb(resp); - dev->cmd = NULL; - } - - return rc; -} - -struct port100_sync_cmd_response { - struct sk_buff *resp; - struct completion done; -}; - -static void port100_wq_cmd_complete(struct work_struct *work) -{ - struct port100 *dev = container_of(work, struct port100, - cmd_complete_work); - - port100_send_async_complete(dev); -} - -static void port100_send_sync_complete(struct port100 *dev, void *_arg, - struct sk_buff *resp) -{ - struct port100_sync_cmd_response *arg = _arg; - - arg->resp = resp; - complete(&arg->done); -} - -static struct sk_buff *port100_send_cmd_sync(struct port100 *dev, u8 cmd_code, - struct sk_buff *req) -{ - int rc; - struct port100_sync_cmd_response arg; - - init_completion(&arg.done); - - rc = port100_send_cmd_async(dev, cmd_code, req, - port100_send_sync_complete, &arg); - if (rc) { - dev_kfree_skb(req); - return ERR_PTR(rc); - } - - wait_for_completion(&arg.done); - - return arg.resp; -} - -static void port100_send_complete(struct urb *urb) -{ - struct port100 *dev = urb->context; - - switch (urb->status) { - case 0: - break; /* success */ - case -ECONNRESET: - case -ENOENT: - nfc_err(&dev->interface->dev, - "The urb has been stopped (status %d)", urb->status); - break; - case -ESHUTDOWN: - default: - nfc_err(&dev->interface->dev, "Urb failure (status %d)", - urb->status); - } -} - -static void port100_abort_cmd(struct nfc_digital_dev *ddev) -{ - struct port100 *dev = nfc_digital_get_drvdata(ddev); - - /* An ack will cancel the last issued command */ - port100_send_ack(dev); - - /* cancel the urb request */ - usb_kill_urb(dev->in_urb); -} - -static struct sk_buff *port100_alloc_skb(struct port100 *dev, unsigned int size) -{ - struct sk_buff *skb; - - skb = alloc_skb(dev->skb_headroom + dev->skb_tailroom + size, - GFP_KERNEL); - if (skb) - skb_reserve(skb, dev->skb_headroom); - - return skb; -} - -static int port100_set_command_type(struct port100 *dev, u8 command_type) -{ - struct sk_buff *skb; - struct sk_buff *resp; - int rc; - - skb = port100_alloc_skb(dev, 1); - if (!skb) - return -ENOMEM; - - *skb_put(skb, sizeof(u8)) = command_type; - - resp = port100_send_cmd_sync(dev, PORT100_CMD_SET_COMMAND_TYPE, skb); - if (IS_ERR(resp)) - return PTR_ERR(resp); - - rc = resp->data[0]; - - dev_kfree_skb(resp); - - return rc; -} - -static u64 port100_get_command_type_mask(struct port100 *dev) -{ - struct sk_buff *skb; - struct sk_buff *resp; - u64 mask; - - skb = port100_alloc_skb(dev, 0); - if (!skb) - return -ENOMEM; - - resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_COMMAND_TYPE, skb); - if (IS_ERR(resp)) - return PTR_ERR(resp); - - if (resp->len < 8) - mask = 0; - else - mask = be64_to_cpu(*(__be64 *)resp->data); - - dev_kfree_skb(resp); - - return mask; -} - -static u16 port100_get_firmware_version(struct port100 *dev) -{ - struct sk_buff *skb; - struct sk_buff *resp; - u16 fw_ver; - - skb = port100_alloc_skb(dev, 0); - if (!skb) - return 0; - - resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_FIRMWARE_VERSION, - skb); - if (IS_ERR(resp)) - return 0; - - fw_ver = le16_to_cpu(*(__le16 *)resp->data); - - dev_kfree_skb(resp); - - return fw_ver; -} - -static int port100_switch_rf(struct nfc_digital_dev *ddev, bool on) -{ - struct port100 *dev = nfc_digital_get_drvdata(ddev); - struct sk_buff *skb, *resp; - - skb = port100_alloc_skb(dev, 1); - if (!skb) - return -ENOMEM; - - *skb_put(skb, 1) = on ? 1 : 0; - - resp = port100_send_cmd_sync(dev, PORT100_CMD_SWITCH_RF, skb); - - if (IS_ERR(resp)) - return PTR_ERR(resp); - - dev_kfree_skb(resp); - - return 0; -} - -static int port100_in_set_rf(struct nfc_digital_dev *ddev, u8 rf) -{ - struct port100 *dev = nfc_digital_get_drvdata(ddev); - struct sk_buff *skb; - struct sk_buff *resp; - int rc; - - if (rf >= NFC_DIGITAL_RF_TECH_LAST) - return -EINVAL; - - skb = port100_alloc_skb(dev, sizeof(struct port100_in_rf_setting)); - if (!skb) - return -ENOMEM; - - memcpy(skb_put(skb, sizeof(struct port100_in_rf_setting)), - &in_rf_settings[rf], - sizeof(struct port100_in_rf_setting)); - - resp = port100_send_cmd_sync(dev, PORT100_CMD_IN_SET_RF, skb); - - if (IS_ERR(resp)) - return PTR_ERR(resp); - - rc = resp->data[0]; - - dev_kfree_skb(resp); - - return rc; -} - -static int port100_in_set_framing(struct nfc_digital_dev *ddev, int param) -{ - struct port100 *dev = nfc_digital_get_drvdata(ddev); - struct port100_protocol *protocols; - struct sk_buff *skb; - struct sk_buff *resp; - int num_protocols; - size_t size; - int rc; - - if (param >= NFC_DIGITAL_FRAMING_LAST) - return -EINVAL; - - protocols = in_protocols[param]; - - num_protocols = 0; - while (protocols[num_protocols].number != PORT100_IN_PROT_END) - num_protocols++; - - if (!num_protocols) - return 0; - - size = sizeof(struct port100_protocol) * num_protocols; - - skb = port100_alloc_skb(dev, size); - if (!skb) - return -ENOMEM; - - memcpy(skb_put(skb, size), protocols, size); - - resp = port100_send_cmd_sync(dev, PORT100_CMD_IN_SET_PROTOCOL, skb); - - if (IS_ERR(resp)) - return PTR_ERR(resp); - - rc = resp->data[0]; - - dev_kfree_skb(resp); - - return rc; -} - -static int port100_in_configure_hw(struct nfc_digital_dev *ddev, int type, - int param) -{ - if (type == NFC_DIGITAL_CONFIG_RF_TECH) - return port100_in_set_rf(ddev, param); - - if (type == NFC_DIGITAL_CONFIG_FRAMING) - return port100_in_set_framing(ddev, param); - - return -EINVAL; -} - -static void port100_in_comm_rf_complete(struct port100 *dev, void *arg, - struct sk_buff *resp) -{ - struct port100_cb_arg *cb_arg = arg; - nfc_digital_cmd_complete_t cb = cb_arg->complete_cb; - u32 status; - int rc; - - if (IS_ERR(resp)) { - rc = PTR_ERR(resp); - goto exit; - } - - if (resp->len < 4) { - nfc_err(&dev->interface->dev, - "Invalid packet length received.\n"); - rc = -EIO; - goto error; - } - - status = le32_to_cpu(*(__le32 *)resp->data); - - skb_pull(resp, sizeof(u32)); - - if (status == PORT100_CMD_STATUS_TIMEOUT) { - rc = -ETIMEDOUT; - goto error; - } - - if (status != PORT100_CMD_STATUS_OK) { - nfc_err(&dev->interface->dev, - "in_comm_rf failed with status 0x%08x\n", status); - rc = -EIO; - goto error; - } - - /* Remove collision bits byte */ - skb_pull(resp, 1); - - goto exit; - -error: - kfree_skb(resp); - resp = ERR_PTR(rc); - -exit: - cb(dev->nfc_digital_dev, cb_arg->complete_arg, resp); - - kfree(cb_arg); -} - -static int port100_in_send_cmd(struct nfc_digital_dev *ddev, - struct sk_buff *skb, u16 _timeout, - nfc_digital_cmd_complete_t cb, void *arg) -{ - struct port100 *dev = nfc_digital_get_drvdata(ddev); - struct port100_cb_arg *cb_arg; - __le16 timeout; - - cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL); - if (!cb_arg) - return -ENOMEM; - - cb_arg->complete_cb = cb; - cb_arg->complete_arg = arg; - - timeout = cpu_to_le16(_timeout * 10); - - memcpy(skb_push(skb, sizeof(__le16)), &timeout, sizeof(__le16)); - - return port100_send_cmd_async(dev, PORT100_CMD_IN_COMM_RF, skb, - port100_in_comm_rf_complete, cb_arg); -} - -static int port100_tg_set_rf(struct nfc_digital_dev *ddev, u8 rf) -{ - struct port100 *dev = nfc_digital_get_drvdata(ddev); - struct sk_buff *skb; - struct sk_buff *resp; - int rc; - - if (rf >= NFC_DIGITAL_RF_TECH_LAST) - return -EINVAL; - - skb = port100_alloc_skb(dev, sizeof(struct port100_tg_rf_setting)); - if (!skb) - return -ENOMEM; - - memcpy(skb_put(skb, sizeof(struct port100_tg_rf_setting)), - &tg_rf_settings[rf], - sizeof(struct port100_tg_rf_setting)); - - resp = port100_send_cmd_sync(dev, PORT100_CMD_TG_SET_RF, skb); - - if (IS_ERR(resp)) - return PTR_ERR(resp); - - rc = resp->data[0]; - - dev_kfree_skb(resp); - - return rc; -} - -static int port100_tg_set_framing(struct nfc_digital_dev *ddev, int param) -{ - struct port100 *dev = nfc_digital_get_drvdata(ddev); - struct port100_protocol *protocols; - struct sk_buff *skb; - struct sk_buff *resp; - int rc; - int num_protocols; - size_t size; - - if (param >= NFC_DIGITAL_FRAMING_LAST) - return -EINVAL; - - protocols = tg_protocols[param]; - - num_protocols = 0; - while (protocols[num_protocols].number != PORT100_TG_PROT_END) - num_protocols++; - - if (!num_protocols) - return 0; - - size = sizeof(struct port100_protocol) * num_protocols; - - skb = port100_alloc_skb(dev, size); - if (!skb) - return -ENOMEM; - - memcpy(skb_put(skb, size), protocols, size); - - resp = port100_send_cmd_sync(dev, PORT100_CMD_TG_SET_PROTOCOL, skb); - - if (IS_ERR(resp)) - return PTR_ERR(resp); - - rc = resp->data[0]; - - dev_kfree_skb(resp); - - return rc; -} - -static int port100_tg_configure_hw(struct nfc_digital_dev *ddev, int type, - int param) -{ - if (type == NFC_DIGITAL_CONFIG_RF_TECH) - return port100_tg_set_rf(ddev, param); - - if (type == NFC_DIGITAL_CONFIG_FRAMING) - return port100_tg_set_framing(ddev, param); - - return -EINVAL; -} - -static bool port100_tg_target_activated(struct port100 *dev, u8 tgt_activated) -{ - u8 mask; - - switch (dev->cmd_type) { - case PORT100_CMD_TYPE_0: - mask = PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK; - break; - case PORT100_CMD_TYPE_1: - mask = PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK | - PORT100_MDAA_TGT_WAS_ACTIVATED_MASK; - break; - default: - nfc_err(&dev->interface->dev, "Unknonwn command type.\n"); - return false; - } - - return ((tgt_activated & mask) == mask); -} - -static void port100_tg_comm_rf_complete(struct port100 *dev, void *arg, - struct sk_buff *resp) -{ - u32 status; - struct port100_cb_arg *cb_arg = arg; - nfc_digital_cmd_complete_t cb = cb_arg->complete_cb; - struct port100_tg_comm_rf_res *hdr; - - if (IS_ERR(resp)) - goto exit; - - hdr = (struct port100_tg_comm_rf_res *)resp->data; - - status = le32_to_cpu(hdr->status); - - if (cb_arg->mdaa && - !port100_tg_target_activated(dev, hdr->target_activated)) { - kfree_skb(resp); - resp = ERR_PTR(-ETIMEDOUT); - - goto exit; - } - - skb_pull(resp, sizeof(struct port100_tg_comm_rf_res)); - - if (status != PORT100_CMD_STATUS_OK) { - kfree_skb(resp); - - if (status == PORT100_CMD_STATUS_TIMEOUT) - resp = ERR_PTR(-ETIMEDOUT); - else - resp = ERR_PTR(-EIO); - } - -exit: - cb(dev->nfc_digital_dev, cb_arg->complete_arg, resp); - - kfree(cb_arg); -} - -static int port100_tg_send_cmd(struct nfc_digital_dev *ddev, - struct sk_buff *skb, u16 timeout, - nfc_digital_cmd_complete_t cb, void *arg) -{ - struct port100 *dev = nfc_digital_get_drvdata(ddev); - struct port100_tg_comm_rf_cmd *hdr; - struct port100_cb_arg *cb_arg; - - cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL); - if (!cb_arg) - return -ENOMEM; - - cb_arg->complete_cb = cb; - cb_arg->complete_arg = arg; - - skb_push(skb, sizeof(struct port100_tg_comm_rf_cmd)); - - hdr = (struct port100_tg_comm_rf_cmd *)skb->data; - - memset(hdr, 0, sizeof(struct port100_tg_comm_rf_cmd)); - hdr->guard_time = cpu_to_le16(500); - hdr->send_timeout = cpu_to_le16(0xFFFF); - hdr->recv_timeout = cpu_to_le16(timeout); - - return port100_send_cmd_async(dev, PORT100_CMD_TG_COMM_RF, skb, - port100_tg_comm_rf_complete, cb_arg); -} - -static int port100_listen_mdaa(struct nfc_digital_dev *ddev, - struct digital_tg_mdaa_params *params, - u16 timeout, - nfc_digital_cmd_complete_t cb, void *arg) -{ - struct port100 *dev = nfc_digital_get_drvdata(ddev); - struct port100_tg_comm_rf_cmd *hdr; - struct port100_cb_arg *cb_arg; - struct sk_buff *skb; - int rc; - - rc = port100_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, - NFC_DIGITAL_RF_TECH_106A); - if (rc) - return rc; - - rc = port100_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING, - NFC_DIGITAL_FRAMING_NFCA_NFC_DEP); - if (rc) - return rc; - - cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL); - if (!cb_arg) - return -ENOMEM; - - cb_arg->complete_cb = cb; - cb_arg->complete_arg = arg; - cb_arg->mdaa = 1; - - skb = port100_alloc_skb(dev, 0); - if (!skb) { - kfree(cb_arg); - return -ENOMEM; - } - - skb_push(skb, sizeof(struct port100_tg_comm_rf_cmd)); - hdr = (struct port100_tg_comm_rf_cmd *)skb->data; - - memset(hdr, 0, sizeof(struct port100_tg_comm_rf_cmd)); - - hdr->guard_time = 0; - hdr->send_timeout = cpu_to_le16(0xFFFF); - hdr->mdaa = 1; - hdr->nfca_param[0] = (params->sens_res >> 8) & 0xFF; - hdr->nfca_param[1] = params->sens_res & 0xFF; - memcpy(hdr->nfca_param + 2, params->nfcid1, 3); - hdr->nfca_param[5] = params->sel_res; - memcpy(hdr->nfcf_param, params->nfcid2, 8); - hdr->nfcf_param[16] = (params->sc >> 8) & 0xFF; - hdr->nfcf_param[17] = params->sc & 0xFF; - hdr->recv_timeout = cpu_to_le16(timeout); - - return port100_send_cmd_async(dev, PORT100_CMD_TG_COMM_RF, skb, - port100_tg_comm_rf_complete, cb_arg); -} - -static int port100_listen(struct nfc_digital_dev *ddev, u16 timeout, - nfc_digital_cmd_complete_t cb, void *arg) -{ - struct port100 *dev = nfc_digital_get_drvdata(ddev); - struct sk_buff *skb; - - skb = port100_alloc_skb(dev, 0); - if (!skb) - return -ENOMEM; - - return port100_tg_send_cmd(ddev, skb, timeout, cb, arg); -} - -static struct nfc_digital_ops port100_digital_ops = { - .in_configure_hw = port100_in_configure_hw, - .in_send_cmd = port100_in_send_cmd, - - .tg_listen_mdaa = port100_listen_mdaa, - .tg_listen = port100_listen, - .tg_configure_hw = port100_tg_configure_hw, - .tg_send_cmd = port100_tg_send_cmd, - - .switch_rf = port100_switch_rf, - .abort_cmd = port100_abort_cmd, -}; - -static const struct usb_device_id port100_table[] = { - { .match_flags = USB_DEVICE_ID_MATCH_DEVICE, - .idVendor = SONY_VENDOR_ID, - .idProduct = RCS380_PRODUCT_ID, - }, - { } -}; -MODULE_DEVICE_TABLE(usb, port100_table); - -static int port100_probe(struct usb_interface *interface, - const struct usb_device_id *id) -{ - struct port100 *dev; - int rc; - struct usb_host_interface *iface_desc; - struct usb_endpoint_descriptor *endpoint; - int in_endpoint; - int out_endpoint; - u16 fw_version; - u64 cmd_type_mask; - int i; - - dev = devm_kzalloc(&interface->dev, sizeof(struct port100), GFP_KERNEL); - if (!dev) - return -ENOMEM; - - dev->udev = usb_get_dev(interface_to_usbdev(interface)); - dev->interface = interface; - usb_set_intfdata(interface, dev); - - in_endpoint = out_endpoint = 0; - iface_desc = interface->cur_altsetting; - for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { - endpoint = &iface_desc->endpoint[i].desc; - - if (!in_endpoint && usb_endpoint_is_bulk_in(endpoint)) - in_endpoint = endpoint->bEndpointAddress; - - if (!out_endpoint && usb_endpoint_is_bulk_out(endpoint)) - out_endpoint = endpoint->bEndpointAddress; - } - - if (!in_endpoint || !out_endpoint) { - nfc_err(&interface->dev, - "Could not find bulk-in or bulk-out endpoint\n"); - rc = -ENODEV; - goto error; - } - - dev->in_urb = usb_alloc_urb(0, GFP_KERNEL); - dev->out_urb = usb_alloc_urb(0, GFP_KERNEL); - - if (!dev->in_urb || !dev->out_urb) { - nfc_err(&interface->dev, "Could not allocate USB URBs\n"); - rc = -ENOMEM; - goto error; - } - - usb_fill_bulk_urb(dev->in_urb, dev->udev, - usb_rcvbulkpipe(dev->udev, in_endpoint), - NULL, 0, NULL, dev); - usb_fill_bulk_urb(dev->out_urb, dev->udev, - usb_sndbulkpipe(dev->udev, out_endpoint), - NULL, 0, port100_send_complete, dev); - - dev->skb_headroom = PORT100_FRAME_HEADER_LEN + - PORT100_COMM_RF_HEAD_MAX_LEN; - dev->skb_tailroom = PORT100_FRAME_TAIL_LEN; - - INIT_WORK(&dev->cmd_complete_work, port100_wq_cmd_complete); - - /* The first thing to do with the Port-100 is to set the command type - * to be used. If supported we use command type 1. 0 otherwise. - */ - cmd_type_mask = port100_get_command_type_mask(dev); - if (!cmd_type_mask) { - nfc_err(&interface->dev, - "Could not get supported command types.\n"); - rc = -ENODEV; - goto error; - } - - if (PORT100_CMD_TYPE_IS_SUPPORTED(cmd_type_mask, PORT100_CMD_TYPE_1)) - dev->cmd_type = PORT100_CMD_TYPE_1; - else - dev->cmd_type = PORT100_CMD_TYPE_0; - - rc = port100_set_command_type(dev, dev->cmd_type); - if (rc) { - nfc_err(&interface->dev, - "The device does not support command type %u.\n", - dev->cmd_type); - goto error; - } - - fw_version = port100_get_firmware_version(dev); - if (!fw_version) - nfc_err(&interface->dev, - "Could not get device firmware version.\n"); - - nfc_info(&interface->dev, - "Sony NFC Port-100 Series attached (firmware v%x.%02x)\n", - (fw_version & 0xFF00) >> 8, fw_version & 0xFF); - - dev->nfc_digital_dev = nfc_digital_allocate_device(&port100_digital_ops, - PORT100_PROTOCOLS, - PORT100_CAPABILITIES, - dev->skb_headroom, - dev->skb_tailroom); - if (!dev->nfc_digital_dev) { - nfc_err(&interface->dev, - "Could not allocate nfc_digital_dev.\n"); - rc = -ENOMEM; - goto error; - } - - nfc_digital_set_parent_dev(dev->nfc_digital_dev, &interface->dev); - nfc_digital_set_drvdata(dev->nfc_digital_dev, dev); - - rc = nfc_digital_register_device(dev->nfc_digital_dev); - if (rc) { - nfc_err(&interface->dev, - "Could not register digital device.\n"); - goto free_nfc_dev; - } - - return 0; - -free_nfc_dev: - nfc_digital_free_device(dev->nfc_digital_dev); - -error: - usb_free_urb(dev->in_urb); - usb_free_urb(dev->out_urb); - usb_put_dev(dev->udev); - - return rc; -} - -static void port100_disconnect(struct usb_interface *interface) -{ - struct port100 *dev; - - dev = usb_get_intfdata(interface); - usb_set_intfdata(interface, NULL); - - nfc_digital_unregister_device(dev->nfc_digital_dev); - nfc_digital_free_device(dev->nfc_digital_dev); - - usb_kill_urb(dev->in_urb); - usb_kill_urb(dev->out_urb); - - usb_free_urb(dev->in_urb); - usb_free_urb(dev->out_urb); - - kfree(dev->cmd); - - nfc_info(&interface->dev, "Sony Port-100 NFC device disconnected"); -} - -static struct usb_driver port100_driver = { - .name = "port100", - .probe = port100_probe, - .disconnect = port100_disconnect, - .id_table = port100_table, -}; - -module_usb_driver(port100_driver); - -MODULE_DESCRIPTION("NFC Port-100 series usb driver ver " VERSION); -MODULE_VERSION(VERSION); -MODULE_LICENSE("GPL"); |