1562d4d59SThierry Escande /* 2562d4d59SThierry Escande * Sony NFC Port-100 Series driver 3562d4d59SThierry Escande * Copyright (c) 2013, Intel Corporation. 4562d4d59SThierry Escande * 5562d4d59SThierry Escande * Partly based/Inspired by Stephen Tiedemann's nfcpy 6562d4d59SThierry Escande * 7562d4d59SThierry Escande * This program is free software; you can redistribute it and/or modify it 8562d4d59SThierry Escande * under the terms and conditions of the GNU General Public License, 9562d4d59SThierry Escande * version 2, as published by the Free Software Foundation. 10562d4d59SThierry Escande * 11562d4d59SThierry Escande * This program is distributed in the hope it will be useful, but WITHOUT 12562d4d59SThierry Escande * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13562d4d59SThierry Escande * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 14562d4d59SThierry Escande * more details. 15562d4d59SThierry Escande * 16562d4d59SThierry Escande */ 17562d4d59SThierry Escande 18562d4d59SThierry Escande #include <linux/module.h> 19562d4d59SThierry Escande #include <linux/usb.h> 20562d4d59SThierry Escande #include <net/nfc/digital.h> 21562d4d59SThierry Escande 22562d4d59SThierry Escande #define VERSION "0.1" 23562d4d59SThierry Escande 24562d4d59SThierry Escande #define SONY_VENDOR_ID 0x054c 25562d4d59SThierry Escande #define RCS380_PRODUCT_ID 0x06c1 26562d4d59SThierry Escande 27562d4d59SThierry Escande #define PORT100_PROTOCOLS (NFC_PROTO_JEWEL_MASK | \ 28562d4d59SThierry Escande NFC_PROTO_MIFARE_MASK | \ 29562d4d59SThierry Escande NFC_PROTO_FELICA_MASK | \ 302a26f9a2SThierry Escande NFC_PROTO_NFC_DEP_MASK | \ 31*09592ccfSThierry Escande NFC_PROTO_ISO14443_MASK | \ 32*09592ccfSThierry Escande NFC_PROTO_ISO14443_B_MASK) 33562d4d59SThierry Escande 34562d4d59SThierry Escande #define PORT100_CAPABILITIES (NFC_DIGITAL_DRV_CAPS_IN_CRC | \ 35562d4d59SThierry Escande NFC_DIGITAL_DRV_CAPS_TG_CRC) 36562d4d59SThierry Escande 370347a6abSThierry Escande /* Standard port100 frame definitions */ 380347a6abSThierry Escande #define PORT100_FRAME_HEADER_LEN (sizeof(struct port100_frame) \ 390347a6abSThierry Escande + 2) /* data[0] CC, data[1] SCC */ 400347a6abSThierry Escande #define PORT100_FRAME_TAIL_LEN 2 /* data[len] DCS, data[len + 1] postamble*/ 410347a6abSThierry Escande 420347a6abSThierry Escande #define PORT100_COMM_RF_HEAD_MAX_LEN (sizeof(struct port100_tg_comm_rf_cmd)) 430347a6abSThierry Escande 440347a6abSThierry Escande /* 450347a6abSThierry Escande * Max extended frame payload len, excluding CC and SCC 460347a6abSThierry Escande * which are already in PORT100_FRAME_HEADER_LEN. 470347a6abSThierry Escande */ 480347a6abSThierry Escande #define PORT100_FRAME_MAX_PAYLOAD_LEN 1001 490347a6abSThierry Escande 500347a6abSThierry Escande #define PORT100_FRAME_ACK_SIZE 6 /* Preamble (1), SoPC (2), ACK Code (2), 510347a6abSThierry Escande Postamble (1) */ 520347a6abSThierry Escande static u8 ack_frame[PORT100_FRAME_ACK_SIZE] = { 530347a6abSThierry Escande 0x00, 0x00, 0xff, 0x00, 0xff, 0x00 540347a6abSThierry Escande }; 550347a6abSThierry Escande 560347a6abSThierry Escande #define PORT100_FRAME_CHECKSUM(f) (f->data[le16_to_cpu(f->datalen)]) 570347a6abSThierry Escande #define PORT100_FRAME_POSTAMBLE(f) (f->data[le16_to_cpu(f->datalen) + 1]) 580347a6abSThierry Escande 590347a6abSThierry Escande /* start of frame */ 600347a6abSThierry Escande #define PORT100_FRAME_SOF 0x00FF 610347a6abSThierry Escande #define PORT100_FRAME_EXT 0xFFFF 620347a6abSThierry Escande #define PORT100_FRAME_ACK 0x00FF 630347a6abSThierry Escande 640347a6abSThierry Escande /* Port-100 command: in or out */ 650347a6abSThierry Escande #define PORT100_FRAME_DIRECTION(f) (f->data[0]) /* CC */ 660347a6abSThierry Escande #define PORT100_FRAME_DIR_OUT 0xD6 670347a6abSThierry Escande #define PORT100_FRAME_DIR_IN 0xD7 680347a6abSThierry Escande 690347a6abSThierry Escande /* Port-100 sub-command */ 700347a6abSThierry Escande #define PORT100_FRAME_CMD(f) (f->data[1]) /* SCC */ 710347a6abSThierry Escande 720347a6abSThierry Escande #define PORT100_CMD_GET_FIRMWARE_VERSION 0x20 730347a6abSThierry Escande #define PORT100_CMD_GET_COMMAND_TYPE 0x28 740347a6abSThierry Escande #define PORT100_CMD_SET_COMMAND_TYPE 0x2A 750347a6abSThierry Escande 769f7b57f2SThierry Escande #define PORT100_CMD_IN_SET_RF 0x00 779f7b57f2SThierry Escande #define PORT100_CMD_IN_SET_PROTOCOL 0x02 789f7b57f2SThierry Escande #define PORT100_CMD_IN_COMM_RF 0x04 799f7b57f2SThierry Escande 807227c021SThierry Escande #define PORT100_CMD_TG_SET_RF 0x40 817227c021SThierry Escande #define PORT100_CMD_TG_SET_PROTOCOL 0x42 827227c021SThierry Escande #define PORT100_CMD_TG_SET_RF_OFF 0x46 837227c021SThierry Escande #define PORT100_CMD_TG_COMM_RF 0x48 847227c021SThierry Escande 859f7b57f2SThierry Escande #define PORT100_CMD_SWITCH_RF 0x06 869f7b57f2SThierry Escande 870347a6abSThierry Escande #define PORT100_CMD_RESPONSE(cmd) (cmd + 1) 880347a6abSThierry Escande 890347a6abSThierry Escande #define PORT100_CMD_TYPE_IS_SUPPORTED(mask, cmd_type) \ 900347a6abSThierry Escande ((mask) & (0x01 << (cmd_type))) 910347a6abSThierry Escande #define PORT100_CMD_TYPE_0 0 920347a6abSThierry Escande #define PORT100_CMD_TYPE_1 1 930347a6abSThierry Escande 949f7b57f2SThierry Escande #define PORT100_CMD_STATUS_OK 0x00 959f7b57f2SThierry Escande #define PORT100_CMD_STATUS_TIMEOUT 0x80 969f7b57f2SThierry Escande 977227c021SThierry Escande #define PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK 0x01 987227c021SThierry Escande #define PORT100_MDAA_TGT_WAS_ACTIVATED_MASK 0x02 997227c021SThierry Escande 1000347a6abSThierry Escande struct port100; 1010347a6abSThierry Escande 1020347a6abSThierry Escande typedef void (*port100_send_async_complete_t)(struct port100 *dev, void *arg, 1030347a6abSThierry Escande struct sk_buff *resp); 1040347a6abSThierry Escande 1059f7b57f2SThierry Escande /** 1069f7b57f2SThierry Escande * Setting sets structure for in_set_rf command 1079f7b57f2SThierry Escande * 1089f7b57f2SThierry Escande * @in_*_set_number: Represent the entry indexes in the port-100 RF Base Table. 1099f7b57f2SThierry Escande * This table contains multiple RF setting sets required for RF 1109f7b57f2SThierry Escande * communication. 1119f7b57f2SThierry Escande * 1129f7b57f2SThierry Escande * @in_*_comm_type: Theses fields set the communication type to be used. 1139f7b57f2SThierry Escande */ 1149f7b57f2SThierry Escande struct port100_in_rf_setting { 1159f7b57f2SThierry Escande u8 in_send_set_number; 1169f7b57f2SThierry Escande u8 in_send_comm_type; 1179f7b57f2SThierry Escande u8 in_recv_set_number; 1189f7b57f2SThierry Escande u8 in_recv_comm_type; 1199f7b57f2SThierry Escande } __packed; 1209f7b57f2SThierry Escande 1219f7b57f2SThierry Escande #define PORT100_COMM_TYPE_IN_212F 0x01 1229f7b57f2SThierry Escande #define PORT100_COMM_TYPE_IN_424F 0x02 1239f7b57f2SThierry Escande #define PORT100_COMM_TYPE_IN_106A 0x03 124*09592ccfSThierry Escande #define PORT100_COMM_TYPE_IN_106B 0x07 1259f7b57f2SThierry Escande 1269f7b57f2SThierry Escande static const struct port100_in_rf_setting in_rf_settings[] = { 1279f7b57f2SThierry Escande [NFC_DIGITAL_RF_TECH_212F] = { 1289f7b57f2SThierry Escande .in_send_set_number = 1, 1299f7b57f2SThierry Escande .in_send_comm_type = PORT100_COMM_TYPE_IN_212F, 1309f7b57f2SThierry Escande .in_recv_set_number = 15, 1319f7b57f2SThierry Escande .in_recv_comm_type = PORT100_COMM_TYPE_IN_212F, 1329f7b57f2SThierry Escande }, 1339f7b57f2SThierry Escande [NFC_DIGITAL_RF_TECH_424F] = { 1349f7b57f2SThierry Escande .in_send_set_number = 1, 1359f7b57f2SThierry Escande .in_send_comm_type = PORT100_COMM_TYPE_IN_424F, 1369f7b57f2SThierry Escande .in_recv_set_number = 15, 1379f7b57f2SThierry Escande .in_recv_comm_type = PORT100_COMM_TYPE_IN_424F, 1389f7b57f2SThierry Escande }, 1399f7b57f2SThierry Escande [NFC_DIGITAL_RF_TECH_106A] = { 1409f7b57f2SThierry Escande .in_send_set_number = 2, 1419f7b57f2SThierry Escande .in_send_comm_type = PORT100_COMM_TYPE_IN_106A, 1429f7b57f2SThierry Escande .in_recv_set_number = 15, 1439f7b57f2SThierry Escande .in_recv_comm_type = PORT100_COMM_TYPE_IN_106A, 1449f7b57f2SThierry Escande }, 145*09592ccfSThierry Escande [NFC_DIGITAL_RF_TECH_106B] = { 146*09592ccfSThierry Escande .in_send_set_number = 3, 147*09592ccfSThierry Escande .in_send_comm_type = PORT100_COMM_TYPE_IN_106B, 148*09592ccfSThierry Escande .in_recv_set_number = 15, 149*09592ccfSThierry Escande .in_recv_comm_type = PORT100_COMM_TYPE_IN_106B, 150*09592ccfSThierry Escande }, 151d3815ea9SThierry Escande /* Ensures the array has NFC_DIGITAL_RF_TECH_LAST elements */ 152d3815ea9SThierry Escande [NFC_DIGITAL_RF_TECH_LAST] = { 0 }, 1539f7b57f2SThierry Escande }; 1549f7b57f2SThierry Escande 1557227c021SThierry Escande /** 1567227c021SThierry Escande * Setting sets structure for tg_set_rf command 1577227c021SThierry Escande * 1587227c021SThierry Escande * @tg_set_number: Represents the entry index in the port-100 RF Base Table. 1597227c021SThierry Escande * This table contains multiple RF setting sets required for RF 1607227c021SThierry Escande * communication. this field is used for both send and receive 1617227c021SThierry Escande * settings. 1627227c021SThierry Escande * 1637227c021SThierry Escande * @tg_comm_type: Sets the communication type to be used to send and receive 1647227c021SThierry Escande * data. 1657227c021SThierry Escande */ 1667227c021SThierry Escande struct port100_tg_rf_setting { 1677227c021SThierry Escande u8 tg_set_number; 1687227c021SThierry Escande u8 tg_comm_type; 1697227c021SThierry Escande } __packed; 1707227c021SThierry Escande 1717227c021SThierry Escande #define PORT100_COMM_TYPE_TG_106A 0x0B 1727227c021SThierry Escande #define PORT100_COMM_TYPE_TG_212F 0x0C 1737227c021SThierry Escande #define PORT100_COMM_TYPE_TG_424F 0x0D 1747227c021SThierry Escande 1757227c021SThierry Escande static const struct port100_tg_rf_setting tg_rf_settings[] = { 1767227c021SThierry Escande [NFC_DIGITAL_RF_TECH_106A] = { 1777227c021SThierry Escande .tg_set_number = 8, 1787227c021SThierry Escande .tg_comm_type = PORT100_COMM_TYPE_TG_106A, 1797227c021SThierry Escande }, 1807227c021SThierry Escande [NFC_DIGITAL_RF_TECH_212F] = { 1817227c021SThierry Escande .tg_set_number = 8, 1827227c021SThierry Escande .tg_comm_type = PORT100_COMM_TYPE_TG_212F, 1837227c021SThierry Escande }, 1847227c021SThierry Escande [NFC_DIGITAL_RF_TECH_424F] = { 1857227c021SThierry Escande .tg_set_number = 8, 1867227c021SThierry Escande .tg_comm_type = PORT100_COMM_TYPE_TG_424F, 1877227c021SThierry Escande }, 188d3815ea9SThierry Escande /* Ensures the array has NFC_DIGITAL_RF_TECH_LAST elements */ 189d3815ea9SThierry Escande [NFC_DIGITAL_RF_TECH_LAST] = { 0 }, 190d3815ea9SThierry Escande 1917227c021SThierry Escande }; 1927227c021SThierry Escande 1939f7b57f2SThierry Escande #define PORT100_IN_PROT_INITIAL_GUARD_TIME 0x00 1949f7b57f2SThierry Escande #define PORT100_IN_PROT_ADD_CRC 0x01 1959f7b57f2SThierry Escande #define PORT100_IN_PROT_CHECK_CRC 0x02 1969f7b57f2SThierry Escande #define PORT100_IN_PROT_MULTI_CARD 0x03 1979f7b57f2SThierry Escande #define PORT100_IN_PROT_ADD_PARITY 0x04 1989f7b57f2SThierry Escande #define PORT100_IN_PROT_CHECK_PARITY 0x05 1999f7b57f2SThierry Escande #define PORT100_IN_PROT_BITWISE_AC_RECV_MODE 0x06 2009f7b57f2SThierry Escande #define PORT100_IN_PROT_VALID_BIT_NUMBER 0x07 2019f7b57f2SThierry Escande #define PORT100_IN_PROT_CRYPTO1 0x08 2029f7b57f2SThierry Escande #define PORT100_IN_PROT_ADD_SOF 0x09 2039f7b57f2SThierry Escande #define PORT100_IN_PROT_CHECK_SOF 0x0A 2049f7b57f2SThierry Escande #define PORT100_IN_PROT_ADD_EOF 0x0B 2059f7b57f2SThierry Escande #define PORT100_IN_PROT_CHECK_EOF 0x0C 2069f7b57f2SThierry Escande #define PORT100_IN_PROT_DEAF_TIME 0x0E 2079f7b57f2SThierry Escande #define PORT100_IN_PROT_CRM 0x0F 2089f7b57f2SThierry Escande #define PORT100_IN_PROT_CRM_MIN_LEN 0x10 2099f7b57f2SThierry Escande #define PORT100_IN_PROT_T1_TAG_FRAME 0x11 2109f7b57f2SThierry Escande #define PORT100_IN_PROT_RFCA 0x12 2119f7b57f2SThierry Escande #define PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR 0x13 2129f7b57f2SThierry Escande #define PORT100_IN_PROT_END 0x14 2139f7b57f2SThierry Escande 2149f7b57f2SThierry Escande #define PORT100_IN_MAX_NUM_PROTOCOLS 19 2159f7b57f2SThierry Escande 2167227c021SThierry Escande #define PORT100_TG_PROT_TU 0x00 2177227c021SThierry Escande #define PORT100_TG_PROT_RF_OFF 0x01 2187227c021SThierry Escande #define PORT100_TG_PROT_CRM 0x02 2197227c021SThierry Escande #define PORT100_TG_PROT_END 0x03 2207227c021SThierry Escande 2217227c021SThierry Escande #define PORT100_TG_MAX_NUM_PROTOCOLS 3 2227227c021SThierry Escande 2239f7b57f2SThierry Escande struct port100_protocol { 2249f7b57f2SThierry Escande u8 number; 2259f7b57f2SThierry Escande u8 value; 2269f7b57f2SThierry Escande } __packed; 2279f7b57f2SThierry Escande 2289f7b57f2SThierry Escande static struct port100_protocol 2299f7b57f2SThierry Escande in_protocols[][PORT100_IN_MAX_NUM_PROTOCOLS + 1] = { 2309f7b57f2SThierry Escande [NFC_DIGITAL_FRAMING_NFCA_SHORT] = { 2319f7b57f2SThierry Escande { PORT100_IN_PROT_INITIAL_GUARD_TIME, 6 }, 2329f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_CRC, 0 }, 2339f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_CRC, 0 }, 2349f7b57f2SThierry Escande { PORT100_IN_PROT_MULTI_CARD, 0 }, 2359f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_PARITY, 0 }, 2369f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_PARITY, 1 }, 2379f7b57f2SThierry Escande { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, 2389f7b57f2SThierry Escande { PORT100_IN_PROT_VALID_BIT_NUMBER, 7 }, 2399f7b57f2SThierry Escande { PORT100_IN_PROT_CRYPTO1, 0 }, 2409f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_SOF, 0 }, 2419f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_SOF, 0 }, 2429f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_EOF, 0 }, 2439f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_EOF, 0 }, 2449f7b57f2SThierry Escande { PORT100_IN_PROT_DEAF_TIME, 4 }, 2459f7b57f2SThierry Escande { PORT100_IN_PROT_CRM, 0 }, 2469f7b57f2SThierry Escande { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, 2479f7b57f2SThierry Escande { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, 2489f7b57f2SThierry Escande { PORT100_IN_PROT_RFCA, 0 }, 2499f7b57f2SThierry Escande { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, 2509f7b57f2SThierry Escande { PORT100_IN_PROT_END, 0 }, 2519f7b57f2SThierry Escande }, 2529f7b57f2SThierry Escande [NFC_DIGITAL_FRAMING_NFCA_STANDARD] = { 2539f7b57f2SThierry Escande { PORT100_IN_PROT_INITIAL_GUARD_TIME, 6 }, 2549f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_CRC, 0 }, 2559f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_CRC, 0 }, 2569f7b57f2SThierry Escande { PORT100_IN_PROT_MULTI_CARD, 0 }, 2579f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_PARITY, 1 }, 2589f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_PARITY, 1 }, 2599f7b57f2SThierry Escande { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, 2609f7b57f2SThierry Escande { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, 2619f7b57f2SThierry Escande { PORT100_IN_PROT_CRYPTO1, 0 }, 2629f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_SOF, 0 }, 2639f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_SOF, 0 }, 2649f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_EOF, 0 }, 2659f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_EOF, 0 }, 2669f7b57f2SThierry Escande { PORT100_IN_PROT_DEAF_TIME, 4 }, 2679f7b57f2SThierry Escande { PORT100_IN_PROT_CRM, 0 }, 2689f7b57f2SThierry Escande { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, 2699f7b57f2SThierry Escande { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, 2709f7b57f2SThierry Escande { PORT100_IN_PROT_RFCA, 0 }, 2719f7b57f2SThierry Escande { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, 2729f7b57f2SThierry Escande { PORT100_IN_PROT_END, 0 }, 2739f7b57f2SThierry Escande }, 2749f7b57f2SThierry Escande [NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A] = { 2759f7b57f2SThierry Escande { PORT100_IN_PROT_INITIAL_GUARD_TIME, 6 }, 2769f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_CRC, 1 }, 2779f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_CRC, 1 }, 2789f7b57f2SThierry Escande { PORT100_IN_PROT_MULTI_CARD, 0 }, 2799f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_PARITY, 1 }, 2809f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_PARITY, 1 }, 2819f7b57f2SThierry Escande { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, 2829f7b57f2SThierry Escande { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, 2839f7b57f2SThierry Escande { PORT100_IN_PROT_CRYPTO1, 0 }, 2849f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_SOF, 0 }, 2859f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_SOF, 0 }, 2869f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_EOF, 0 }, 2879f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_EOF, 0 }, 2889f7b57f2SThierry Escande { PORT100_IN_PROT_DEAF_TIME, 4 }, 2899f7b57f2SThierry Escande { PORT100_IN_PROT_CRM, 0 }, 2909f7b57f2SThierry Escande { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, 2919f7b57f2SThierry Escande { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, 2929f7b57f2SThierry Escande { PORT100_IN_PROT_RFCA, 0 }, 2939f7b57f2SThierry Escande { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, 2949f7b57f2SThierry Escande { PORT100_IN_PROT_END, 0 }, 2959f7b57f2SThierry Escande }, 2969f7b57f2SThierry Escande [NFC_DIGITAL_FRAMING_NFCA_T1T] = { 2979f7b57f2SThierry Escande /* nfc_digital_framing_nfca_short */ 2989f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_CRC, 2 }, 2999f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_CRC, 2 }, 3009f7b57f2SThierry Escande { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, 3019f7b57f2SThierry Escande { PORT100_IN_PROT_T1_TAG_FRAME, 2 }, 3029f7b57f2SThierry Escande { PORT100_IN_PROT_END, 0 }, 3039f7b57f2SThierry Escande }, 3049f7b57f2SThierry Escande [NFC_DIGITAL_FRAMING_NFCA_T2T] = { 3059f7b57f2SThierry Escande /* nfc_digital_framing_nfca_standard */ 3069f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_CRC, 1 }, 3079f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_CRC, 0 }, 3089f7b57f2SThierry Escande { PORT100_IN_PROT_END, 0 }, 3099f7b57f2SThierry Escande }, 3102a26f9a2SThierry Escande [NFC_DIGITAL_FRAMING_NFCA_T4T] = { 3112a26f9a2SThierry Escande /* nfc_digital_framing_nfca_standard_with_crc_a */ 3122a26f9a2SThierry Escande { PORT100_IN_PROT_END, 0 }, 3132a26f9a2SThierry Escande }, 3149f7b57f2SThierry Escande [NFC_DIGITAL_FRAMING_NFCA_NFC_DEP] = { 3159f7b57f2SThierry Escande /* nfc_digital_framing_nfca_standard */ 3169f7b57f2SThierry Escande { PORT100_IN_PROT_END, 0 }, 3179f7b57f2SThierry Escande }, 3189f7b57f2SThierry Escande [NFC_DIGITAL_FRAMING_NFCF] = { 3199f7b57f2SThierry Escande { PORT100_IN_PROT_INITIAL_GUARD_TIME, 18 }, 3209f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_CRC, 1 }, 3219f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_CRC, 1 }, 3229f7b57f2SThierry Escande { PORT100_IN_PROT_MULTI_CARD, 0 }, 3239f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_PARITY, 0 }, 3249f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_PARITY, 0 }, 3259f7b57f2SThierry Escande { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, 3269f7b57f2SThierry Escande { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, 3279f7b57f2SThierry Escande { PORT100_IN_PROT_CRYPTO1, 0 }, 3289f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_SOF, 0 }, 3299f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_SOF, 0 }, 3309f7b57f2SThierry Escande { PORT100_IN_PROT_ADD_EOF, 0 }, 3319f7b57f2SThierry Escande { PORT100_IN_PROT_CHECK_EOF, 0 }, 3329f7b57f2SThierry Escande { PORT100_IN_PROT_DEAF_TIME, 4 }, 3339f7b57f2SThierry Escande { PORT100_IN_PROT_CRM, 0 }, 3349f7b57f2SThierry Escande { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, 3359f7b57f2SThierry Escande { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, 3369f7b57f2SThierry Escande { PORT100_IN_PROT_RFCA, 0 }, 3379f7b57f2SThierry Escande { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, 3389f7b57f2SThierry Escande { PORT100_IN_PROT_END, 0 }, 3399f7b57f2SThierry Escande }, 3409f7b57f2SThierry Escande [NFC_DIGITAL_FRAMING_NFCF_T3T] = { 3419f7b57f2SThierry Escande /* nfc_digital_framing_nfcf */ 3429f7b57f2SThierry Escande { PORT100_IN_PROT_END, 0 }, 3439f7b57f2SThierry Escande }, 3449f7b57f2SThierry Escande [NFC_DIGITAL_FRAMING_NFCF_NFC_DEP] = { 3459f7b57f2SThierry Escande /* nfc_digital_framing_nfcf */ 3469f7b57f2SThierry Escande { PORT100_IN_PROT_END, 0 }, 3479f7b57f2SThierry Escande }, 3489f7b57f2SThierry Escande [NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED] = { 3499f7b57f2SThierry Escande { PORT100_IN_PROT_END, 0 }, 3509f7b57f2SThierry Escande }, 351*09592ccfSThierry Escande [NFC_DIGITAL_FRAMING_NFCB] = { 352*09592ccfSThierry Escande { PORT100_IN_PROT_INITIAL_GUARD_TIME, 20 }, 353*09592ccfSThierry Escande { PORT100_IN_PROT_ADD_CRC, 1 }, 354*09592ccfSThierry Escande { PORT100_IN_PROT_CHECK_CRC, 1 }, 355*09592ccfSThierry Escande { PORT100_IN_PROT_MULTI_CARD, 0 }, 356*09592ccfSThierry Escande { PORT100_IN_PROT_ADD_PARITY, 0 }, 357*09592ccfSThierry Escande { PORT100_IN_PROT_CHECK_PARITY, 0 }, 358*09592ccfSThierry Escande { PORT100_IN_PROT_BITWISE_AC_RECV_MODE, 0 }, 359*09592ccfSThierry Escande { PORT100_IN_PROT_VALID_BIT_NUMBER, 8 }, 360*09592ccfSThierry Escande { PORT100_IN_PROT_CRYPTO1, 0 }, 361*09592ccfSThierry Escande { PORT100_IN_PROT_ADD_SOF, 1 }, 362*09592ccfSThierry Escande { PORT100_IN_PROT_CHECK_SOF, 1 }, 363*09592ccfSThierry Escande { PORT100_IN_PROT_ADD_EOF, 1 }, 364*09592ccfSThierry Escande { PORT100_IN_PROT_CHECK_EOF, 1 }, 365*09592ccfSThierry Escande { PORT100_IN_PROT_DEAF_TIME, 4 }, 366*09592ccfSThierry Escande { PORT100_IN_PROT_CRM, 0 }, 367*09592ccfSThierry Escande { PORT100_IN_PROT_CRM_MIN_LEN, 0 }, 368*09592ccfSThierry Escande { PORT100_IN_PROT_T1_TAG_FRAME, 0 }, 369*09592ccfSThierry Escande { PORT100_IN_PROT_RFCA, 0 }, 370*09592ccfSThierry Escande { PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 }, 371*09592ccfSThierry Escande { PORT100_IN_PROT_END, 0 }, 372*09592ccfSThierry Escande }, 373*09592ccfSThierry Escande [NFC_DIGITAL_FRAMING_NFCB_T4T] = { 374*09592ccfSThierry Escande /* nfc_digital_framing_nfcb */ 375*09592ccfSThierry Escande { PORT100_IN_PROT_END, 0 }, 376*09592ccfSThierry Escande }, 377d3815ea9SThierry Escande /* Ensures the array has NFC_DIGITAL_FRAMING_LAST elements */ 378d3815ea9SThierry Escande [NFC_DIGITAL_FRAMING_LAST] = { 379d3815ea9SThierry Escande { PORT100_IN_PROT_END, 0 }, 380d3815ea9SThierry Escande }, 3819f7b57f2SThierry Escande }; 3829f7b57f2SThierry Escande 3837227c021SThierry Escande static struct port100_protocol 3847227c021SThierry Escande tg_protocols[][PORT100_TG_MAX_NUM_PROTOCOLS + 1] = { 3857227c021SThierry Escande [NFC_DIGITAL_FRAMING_NFCA_SHORT] = { 3867227c021SThierry Escande { PORT100_TG_PROT_END, 0 }, 3877227c021SThierry Escande }, 3887227c021SThierry Escande [NFC_DIGITAL_FRAMING_NFCA_STANDARD] = { 3897227c021SThierry Escande { PORT100_TG_PROT_END, 0 }, 3907227c021SThierry Escande }, 3917227c021SThierry Escande [NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A] = { 3927227c021SThierry Escande { PORT100_TG_PROT_END, 0 }, 3937227c021SThierry Escande }, 3947227c021SThierry Escande [NFC_DIGITAL_FRAMING_NFCA_T1T] = { 3957227c021SThierry Escande { PORT100_TG_PROT_END, 0 }, 3967227c021SThierry Escande }, 3977227c021SThierry Escande [NFC_DIGITAL_FRAMING_NFCA_T2T] = { 3987227c021SThierry Escande { PORT100_TG_PROT_END, 0 }, 3997227c021SThierry Escande }, 4007227c021SThierry Escande [NFC_DIGITAL_FRAMING_NFCA_NFC_DEP] = { 4017227c021SThierry Escande { PORT100_TG_PROT_TU, 1 }, 4027227c021SThierry Escande { PORT100_TG_PROT_RF_OFF, 0 }, 4037227c021SThierry Escande { PORT100_TG_PROT_CRM, 7 }, 4047227c021SThierry Escande { PORT100_TG_PROT_END, 0 }, 4057227c021SThierry Escande }, 4067227c021SThierry Escande [NFC_DIGITAL_FRAMING_NFCF] = { 4077227c021SThierry Escande { PORT100_TG_PROT_END, 0 }, 4087227c021SThierry Escande }, 4097227c021SThierry Escande [NFC_DIGITAL_FRAMING_NFCF_T3T] = { 4107227c021SThierry Escande { PORT100_TG_PROT_END, 0 }, 4117227c021SThierry Escande }, 4127227c021SThierry Escande [NFC_DIGITAL_FRAMING_NFCF_NFC_DEP] = { 4137227c021SThierry Escande { PORT100_TG_PROT_TU, 1 }, 4147227c021SThierry Escande { PORT100_TG_PROT_RF_OFF, 0 }, 4157227c021SThierry Escande { PORT100_TG_PROT_CRM, 7 }, 4167227c021SThierry Escande { PORT100_TG_PROT_END, 0 }, 4177227c021SThierry Escande }, 4187227c021SThierry Escande [NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED] = { 4197227c021SThierry Escande { PORT100_TG_PROT_RF_OFF, 1 }, 4207227c021SThierry Escande { PORT100_TG_PROT_END, 0 }, 4217227c021SThierry Escande }, 422d3815ea9SThierry Escande /* Ensures the array has NFC_DIGITAL_FRAMING_LAST elements */ 423d3815ea9SThierry Escande [NFC_DIGITAL_FRAMING_LAST] = { 424d3815ea9SThierry Escande { PORT100_TG_PROT_END, 0 }, 425d3815ea9SThierry Escande }, 4267227c021SThierry Escande }; 4277227c021SThierry Escande 428562d4d59SThierry Escande struct port100 { 429562d4d59SThierry Escande struct nfc_digital_dev *nfc_digital_dev; 430562d4d59SThierry Escande 431562d4d59SThierry Escande int skb_headroom; 432562d4d59SThierry Escande int skb_tailroom; 433562d4d59SThierry Escande 434562d4d59SThierry Escande struct usb_device *udev; 435562d4d59SThierry Escande struct usb_interface *interface; 4360347a6abSThierry Escande 4370347a6abSThierry Escande struct urb *out_urb; 4380347a6abSThierry Escande struct urb *in_urb; 4390347a6abSThierry Escande 4400347a6abSThierry Escande struct work_struct cmd_complete_work; 4410347a6abSThierry Escande 4420347a6abSThierry Escande u8 cmd_type; 4430347a6abSThierry Escande 4440347a6abSThierry Escande /* The digital stack serializes commands to be sent. There is no need 4450347a6abSThierry Escande * for any queuing/locking mechanism at driver level. 4460347a6abSThierry Escande */ 4470347a6abSThierry Escande struct port100_cmd *cmd; 448562d4d59SThierry Escande }; 449562d4d59SThierry Escande 4500347a6abSThierry Escande struct port100_cmd { 4510347a6abSThierry Escande u8 code; 4520347a6abSThierry Escande int status; 4530347a6abSThierry Escande struct sk_buff *req; 4540347a6abSThierry Escande struct sk_buff *resp; 4550347a6abSThierry Escande int resp_len; 4560347a6abSThierry Escande port100_send_async_complete_t complete_cb; 4570347a6abSThierry Escande void *complete_cb_context; 4580347a6abSThierry Escande }; 4590347a6abSThierry Escande 4600347a6abSThierry Escande struct port100_frame { 4610347a6abSThierry Escande u8 preamble; 4620347a6abSThierry Escande __be16 start_frame; 4630347a6abSThierry Escande __be16 extended_frame; 4640347a6abSThierry Escande __le16 datalen; 4650347a6abSThierry Escande u8 datalen_checksum; 4660347a6abSThierry Escande u8 data[]; 4670347a6abSThierry Escande } __packed; 4680347a6abSThierry Escande 4690347a6abSThierry Escande struct port100_ack_frame { 4700347a6abSThierry Escande u8 preamble; 4710347a6abSThierry Escande __be16 start_frame; 4720347a6abSThierry Escande __be16 ack_frame; 4730347a6abSThierry Escande u8 postambule; 4740347a6abSThierry Escande } __packed; 4750347a6abSThierry Escande 4760347a6abSThierry Escande struct port100_cb_arg { 4770347a6abSThierry Escande nfc_digital_cmd_complete_t complete_cb; 4780347a6abSThierry Escande void *complete_arg; 4790347a6abSThierry Escande u8 mdaa; 4800347a6abSThierry Escande }; 4810347a6abSThierry Escande 4820347a6abSThierry Escande struct port100_tg_comm_rf_cmd { 4830347a6abSThierry Escande __le16 guard_time; 4840347a6abSThierry Escande __le16 send_timeout; 4850347a6abSThierry Escande u8 mdaa; 4860347a6abSThierry Escande u8 nfca_param[6]; 4870347a6abSThierry Escande u8 nfcf_param[18]; 4880347a6abSThierry Escande u8 mf_halted; 4890347a6abSThierry Escande u8 arae_flag; 4900347a6abSThierry Escande __le16 recv_timeout; 4910347a6abSThierry Escande u8 data[]; 4920347a6abSThierry Escande } __packed; 4930347a6abSThierry Escande 4947227c021SThierry Escande struct port100_tg_comm_rf_res { 4957227c021SThierry Escande u8 comm_type; 4967227c021SThierry Escande u8 ar_status; 4977227c021SThierry Escande u8 target_activated; 4987227c021SThierry Escande __le32 status; 4997227c021SThierry Escande u8 data[]; 5007227c021SThierry Escande } __packed; 5017227c021SThierry Escande 5020347a6abSThierry Escande /* The rule: value + checksum = 0 */ 5030347a6abSThierry Escande static inline u8 port100_checksum(u16 value) 5040347a6abSThierry Escande { 5050347a6abSThierry Escande return ~(((u8 *)&value)[0] + ((u8 *)&value)[1]) + 1; 5060347a6abSThierry Escande } 5070347a6abSThierry Escande 5080347a6abSThierry Escande /* The rule: sum(data elements) + checksum = 0 */ 5090347a6abSThierry Escande static u8 port100_data_checksum(u8 *data, int datalen) 5100347a6abSThierry Escande { 5110347a6abSThierry Escande u8 sum = 0; 5120347a6abSThierry Escande int i; 5130347a6abSThierry Escande 5140347a6abSThierry Escande for (i = 0; i < datalen; i++) 5150347a6abSThierry Escande sum += data[i]; 5160347a6abSThierry Escande 5170347a6abSThierry Escande return port100_checksum(sum); 5180347a6abSThierry Escande } 5190347a6abSThierry Escande 5200347a6abSThierry Escande static void port100_tx_frame_init(void *_frame, u8 cmd_code) 5210347a6abSThierry Escande { 5220347a6abSThierry Escande struct port100_frame *frame = _frame; 5230347a6abSThierry Escande 5240347a6abSThierry Escande frame->preamble = 0; 5250347a6abSThierry Escande frame->start_frame = cpu_to_be16(PORT100_FRAME_SOF); 5260347a6abSThierry Escande frame->extended_frame = cpu_to_be16(PORT100_FRAME_EXT); 5270347a6abSThierry Escande PORT100_FRAME_DIRECTION(frame) = PORT100_FRAME_DIR_OUT; 5280347a6abSThierry Escande PORT100_FRAME_CMD(frame) = cmd_code; 5290347a6abSThierry Escande frame->datalen = cpu_to_le16(2); 5300347a6abSThierry Escande } 5310347a6abSThierry Escande 5320347a6abSThierry Escande static void port100_tx_frame_finish(void *_frame) 5330347a6abSThierry Escande { 5340347a6abSThierry Escande struct port100_frame *frame = _frame; 5350347a6abSThierry Escande 5360347a6abSThierry Escande frame->datalen_checksum = port100_checksum(le16_to_cpu(frame->datalen)); 5370347a6abSThierry Escande 5380347a6abSThierry Escande PORT100_FRAME_CHECKSUM(frame) = 5390347a6abSThierry Escande port100_data_checksum(frame->data, le16_to_cpu(frame->datalen)); 5400347a6abSThierry Escande 5410347a6abSThierry Escande PORT100_FRAME_POSTAMBLE(frame) = 0; 5420347a6abSThierry Escande } 5430347a6abSThierry Escande 5440347a6abSThierry Escande static void port100_tx_update_payload_len(void *_frame, int len) 5450347a6abSThierry Escande { 5460347a6abSThierry Escande struct port100_frame *frame = _frame; 5470347a6abSThierry Escande 5480347a6abSThierry Escande frame->datalen = cpu_to_le16(le16_to_cpu(frame->datalen) + len); 5490347a6abSThierry Escande } 5500347a6abSThierry Escande 5510347a6abSThierry Escande static bool port100_rx_frame_is_valid(void *_frame) 5520347a6abSThierry Escande { 5530347a6abSThierry Escande u8 checksum; 5540347a6abSThierry Escande struct port100_frame *frame = _frame; 5550347a6abSThierry Escande 5560347a6abSThierry Escande if (frame->start_frame != cpu_to_be16(PORT100_FRAME_SOF) || 5570347a6abSThierry Escande frame->extended_frame != cpu_to_be16(PORT100_FRAME_EXT)) 5580347a6abSThierry Escande return false; 5590347a6abSThierry Escande 5600347a6abSThierry Escande checksum = port100_checksum(le16_to_cpu(frame->datalen)); 5610347a6abSThierry Escande if (checksum != frame->datalen_checksum) 5620347a6abSThierry Escande return false; 5630347a6abSThierry Escande 5640347a6abSThierry Escande checksum = port100_data_checksum(frame->data, 5650347a6abSThierry Escande le16_to_cpu(frame->datalen)); 5660347a6abSThierry Escande if (checksum != PORT100_FRAME_CHECKSUM(frame)) 5670347a6abSThierry Escande return false; 5680347a6abSThierry Escande 5690347a6abSThierry Escande return true; 5700347a6abSThierry Escande } 5710347a6abSThierry Escande 5720347a6abSThierry Escande static bool port100_rx_frame_is_ack(struct port100_ack_frame *frame) 5730347a6abSThierry Escande { 5740347a6abSThierry Escande return (frame->start_frame == cpu_to_be16(PORT100_FRAME_SOF) && 5750347a6abSThierry Escande frame->ack_frame == cpu_to_be16(PORT100_FRAME_ACK)); 5760347a6abSThierry Escande } 5770347a6abSThierry Escande 5780347a6abSThierry Escande static inline int port100_rx_frame_size(void *frame) 5790347a6abSThierry Escande { 5800347a6abSThierry Escande struct port100_frame *f = frame; 5810347a6abSThierry Escande 5820347a6abSThierry Escande return sizeof(struct port100_frame) + le16_to_cpu(f->datalen) + 5830347a6abSThierry Escande PORT100_FRAME_TAIL_LEN; 5840347a6abSThierry Escande } 5850347a6abSThierry Escande 5860347a6abSThierry Escande static bool port100_rx_frame_is_cmd_response(struct port100 *dev, void *frame) 5870347a6abSThierry Escande { 5880347a6abSThierry Escande struct port100_frame *f = frame; 5890347a6abSThierry Escande 5900347a6abSThierry Escande return (PORT100_FRAME_CMD(f) == PORT100_CMD_RESPONSE(dev->cmd->code)); 5910347a6abSThierry Escande } 5920347a6abSThierry Escande 5930347a6abSThierry Escande static void port100_recv_response(struct urb *urb) 5940347a6abSThierry Escande { 5950347a6abSThierry Escande struct port100 *dev = urb->context; 5960347a6abSThierry Escande struct port100_cmd *cmd = dev->cmd; 5970347a6abSThierry Escande u8 *in_frame; 5980347a6abSThierry Escande 5990347a6abSThierry Escande cmd->status = urb->status; 6000347a6abSThierry Escande 6010347a6abSThierry Escande switch (urb->status) { 6020347a6abSThierry Escande case 0: 6030347a6abSThierry Escande break; /* success */ 6040347a6abSThierry Escande case -ECONNRESET: 6050347a6abSThierry Escande case -ENOENT: 6060347a6abSThierry Escande nfc_err(&dev->interface->dev, 6070347a6abSThierry Escande "The urb has been canceled (status %d)", urb->status); 6080347a6abSThierry Escande goto sched_wq; 6090347a6abSThierry Escande case -ESHUTDOWN: 6100347a6abSThierry Escande default: 6110347a6abSThierry Escande nfc_err(&dev->interface->dev, "Urb failure (status %d)", 6120347a6abSThierry Escande urb->status); 6130347a6abSThierry Escande goto sched_wq; 6140347a6abSThierry Escande } 6150347a6abSThierry Escande 6160347a6abSThierry Escande in_frame = dev->in_urb->transfer_buffer; 6170347a6abSThierry Escande 6180347a6abSThierry Escande if (!port100_rx_frame_is_valid(in_frame)) { 6190347a6abSThierry Escande nfc_err(&dev->interface->dev, "Received an invalid frame"); 6200347a6abSThierry Escande cmd->status = -EIO; 6210347a6abSThierry Escande goto sched_wq; 6220347a6abSThierry Escande } 6230347a6abSThierry Escande 6240347a6abSThierry Escande print_hex_dump_debug("PORT100 RX: ", DUMP_PREFIX_NONE, 16, 1, in_frame, 6250347a6abSThierry Escande port100_rx_frame_size(in_frame), false); 6260347a6abSThierry Escande 6270347a6abSThierry Escande if (!port100_rx_frame_is_cmd_response(dev, in_frame)) { 6280347a6abSThierry Escande nfc_err(&dev->interface->dev, 6290347a6abSThierry Escande "It's not the response to the last command"); 6300347a6abSThierry Escande cmd->status = -EIO; 6310347a6abSThierry Escande goto sched_wq; 6320347a6abSThierry Escande } 6330347a6abSThierry Escande 6340347a6abSThierry Escande sched_wq: 6350347a6abSThierry Escande schedule_work(&dev->cmd_complete_work); 6360347a6abSThierry Escande } 6370347a6abSThierry Escande 6380347a6abSThierry Escande static int port100_submit_urb_for_response(struct port100 *dev, gfp_t flags) 6390347a6abSThierry Escande { 6400347a6abSThierry Escande dev->in_urb->complete = port100_recv_response; 6410347a6abSThierry Escande 6420347a6abSThierry Escande return usb_submit_urb(dev->in_urb, flags); 6430347a6abSThierry Escande } 6440347a6abSThierry Escande 6450347a6abSThierry Escande static void port100_recv_ack(struct urb *urb) 6460347a6abSThierry Escande { 6470347a6abSThierry Escande struct port100 *dev = urb->context; 6480347a6abSThierry Escande struct port100_cmd *cmd = dev->cmd; 6490347a6abSThierry Escande struct port100_ack_frame *in_frame; 6500347a6abSThierry Escande int rc; 6510347a6abSThierry Escande 6520347a6abSThierry Escande cmd->status = urb->status; 6530347a6abSThierry Escande 6540347a6abSThierry Escande switch (urb->status) { 6550347a6abSThierry Escande case 0: 6560347a6abSThierry Escande break; /* success */ 6570347a6abSThierry Escande case -ECONNRESET: 6580347a6abSThierry Escande case -ENOENT: 6590347a6abSThierry Escande nfc_err(&dev->interface->dev, 6600347a6abSThierry Escande "The urb has been stopped (status %d)", urb->status); 6610347a6abSThierry Escande goto sched_wq; 6620347a6abSThierry Escande case -ESHUTDOWN: 6630347a6abSThierry Escande default: 6640347a6abSThierry Escande nfc_err(&dev->interface->dev, "Urb failure (status %d)", 6650347a6abSThierry Escande urb->status); 6660347a6abSThierry Escande goto sched_wq; 6670347a6abSThierry Escande } 6680347a6abSThierry Escande 6690347a6abSThierry Escande in_frame = dev->in_urb->transfer_buffer; 6700347a6abSThierry Escande 6710347a6abSThierry Escande if (!port100_rx_frame_is_ack(in_frame)) { 6720347a6abSThierry Escande nfc_err(&dev->interface->dev, "Received an invalid ack"); 6730347a6abSThierry Escande cmd->status = -EIO; 6740347a6abSThierry Escande goto sched_wq; 6750347a6abSThierry Escande } 6760347a6abSThierry Escande 6770347a6abSThierry Escande rc = port100_submit_urb_for_response(dev, GFP_ATOMIC); 6780347a6abSThierry Escande if (rc) { 6790347a6abSThierry Escande nfc_err(&dev->interface->dev, 6800347a6abSThierry Escande "usb_submit_urb failed with result %d", rc); 6810347a6abSThierry Escande cmd->status = rc; 6820347a6abSThierry Escande goto sched_wq; 6830347a6abSThierry Escande } 6840347a6abSThierry Escande 6850347a6abSThierry Escande return; 6860347a6abSThierry Escande 6870347a6abSThierry Escande sched_wq: 6880347a6abSThierry Escande schedule_work(&dev->cmd_complete_work); 6890347a6abSThierry Escande } 6900347a6abSThierry Escande 6910347a6abSThierry Escande static int port100_submit_urb_for_ack(struct port100 *dev, gfp_t flags) 6920347a6abSThierry Escande { 6930347a6abSThierry Escande dev->in_urb->complete = port100_recv_ack; 6940347a6abSThierry Escande 6950347a6abSThierry Escande return usb_submit_urb(dev->in_urb, flags); 6960347a6abSThierry Escande } 6970347a6abSThierry Escande 6980347a6abSThierry Escande static int port100_send_ack(struct port100 *dev) 6990347a6abSThierry Escande { 7000347a6abSThierry Escande int rc; 7010347a6abSThierry Escande 7020347a6abSThierry Escande dev->out_urb->transfer_buffer = ack_frame; 7030347a6abSThierry Escande dev->out_urb->transfer_buffer_length = sizeof(ack_frame); 7040347a6abSThierry Escande rc = usb_submit_urb(dev->out_urb, GFP_KERNEL); 7050347a6abSThierry Escande 7060347a6abSThierry Escande return rc; 7070347a6abSThierry Escande } 7080347a6abSThierry Escande 7090347a6abSThierry Escande static int port100_send_frame_async(struct port100 *dev, struct sk_buff *out, 7100347a6abSThierry Escande struct sk_buff *in, int in_len) 7110347a6abSThierry Escande { 7120347a6abSThierry Escande int rc; 7130347a6abSThierry Escande 7140347a6abSThierry Escande dev->out_urb->transfer_buffer = out->data; 7150347a6abSThierry Escande dev->out_urb->transfer_buffer_length = out->len; 7160347a6abSThierry Escande 7170347a6abSThierry Escande dev->in_urb->transfer_buffer = in->data; 7180347a6abSThierry Escande dev->in_urb->transfer_buffer_length = in_len; 7190347a6abSThierry Escande 7200347a6abSThierry Escande print_hex_dump_debug("PORT100 TX: ", DUMP_PREFIX_NONE, 16, 1, 7210347a6abSThierry Escande out->data, out->len, false); 7220347a6abSThierry Escande 7230347a6abSThierry Escande rc = usb_submit_urb(dev->out_urb, GFP_KERNEL); 7240347a6abSThierry Escande if (rc) 7250347a6abSThierry Escande return rc; 7260347a6abSThierry Escande 7270347a6abSThierry Escande rc = port100_submit_urb_for_ack(dev, GFP_KERNEL); 7280347a6abSThierry Escande if (rc) 7290347a6abSThierry Escande goto error; 7300347a6abSThierry Escande 7310347a6abSThierry Escande return 0; 7320347a6abSThierry Escande 7330347a6abSThierry Escande error: 7340347a6abSThierry Escande usb_unlink_urb(dev->out_urb); 7350347a6abSThierry Escande return rc; 7360347a6abSThierry Escande } 7370347a6abSThierry Escande 7380347a6abSThierry Escande static void port100_build_cmd_frame(struct port100 *dev, u8 cmd_code, 7390347a6abSThierry Escande struct sk_buff *skb) 7400347a6abSThierry Escande { 7410347a6abSThierry Escande /* payload is already there, just update datalen */ 7420347a6abSThierry Escande int payload_len = skb->len; 7430347a6abSThierry Escande 7440347a6abSThierry Escande skb_push(skb, PORT100_FRAME_HEADER_LEN); 7450347a6abSThierry Escande skb_put(skb, PORT100_FRAME_TAIL_LEN); 7460347a6abSThierry Escande 7470347a6abSThierry Escande port100_tx_frame_init(skb->data, cmd_code); 7480347a6abSThierry Escande port100_tx_update_payload_len(skb->data, payload_len); 7490347a6abSThierry Escande port100_tx_frame_finish(skb->data); 7500347a6abSThierry Escande } 7510347a6abSThierry Escande 7520347a6abSThierry Escande static void port100_send_async_complete(struct port100 *dev) 7530347a6abSThierry Escande { 7540347a6abSThierry Escande struct port100_cmd *cmd = dev->cmd; 7550347a6abSThierry Escande int status = cmd->status; 7560347a6abSThierry Escande 7570347a6abSThierry Escande struct sk_buff *req = cmd->req; 7580347a6abSThierry Escande struct sk_buff *resp = cmd->resp; 7590347a6abSThierry Escande 7600347a6abSThierry Escande dev_kfree_skb(req); 7610347a6abSThierry Escande 7620347a6abSThierry Escande dev->cmd = NULL; 7630347a6abSThierry Escande 7640347a6abSThierry Escande if (status < 0) { 7650347a6abSThierry Escande cmd->complete_cb(dev, cmd->complete_cb_context, 7660347a6abSThierry Escande ERR_PTR(status)); 7670347a6abSThierry Escande dev_kfree_skb(resp); 7680347a6abSThierry Escande goto done; 7690347a6abSThierry Escande } 7700347a6abSThierry Escande 7710347a6abSThierry Escande skb_put(resp, port100_rx_frame_size(resp->data)); 7720347a6abSThierry Escande skb_pull(resp, PORT100_FRAME_HEADER_LEN); 7730347a6abSThierry Escande skb_trim(resp, resp->len - PORT100_FRAME_TAIL_LEN); 7740347a6abSThierry Escande 7750347a6abSThierry Escande cmd->complete_cb(dev, cmd->complete_cb_context, resp); 7760347a6abSThierry Escande 7770347a6abSThierry Escande done: 7780347a6abSThierry Escande kfree(cmd); 7790347a6abSThierry Escande } 7800347a6abSThierry Escande 7810347a6abSThierry Escande static int port100_send_cmd_async(struct port100 *dev, u8 cmd_code, 7820347a6abSThierry Escande struct sk_buff *req, 7830347a6abSThierry Escande port100_send_async_complete_t complete_cb, 7840347a6abSThierry Escande void *complete_cb_context) 7850347a6abSThierry Escande { 7860347a6abSThierry Escande struct port100_cmd *cmd; 7870347a6abSThierry Escande struct sk_buff *resp; 7880347a6abSThierry Escande int rc; 7890347a6abSThierry Escande int resp_len = PORT100_FRAME_HEADER_LEN + 7900347a6abSThierry Escande PORT100_FRAME_MAX_PAYLOAD_LEN + 7910347a6abSThierry Escande PORT100_FRAME_TAIL_LEN; 7920347a6abSThierry Escande 7930347a6abSThierry Escande resp = alloc_skb(resp_len, GFP_KERNEL); 7940347a6abSThierry Escande if (!resp) 7950347a6abSThierry Escande return -ENOMEM; 7960347a6abSThierry Escande 7970347a6abSThierry Escande cmd = kzalloc(sizeof(*cmd), GFP_KERNEL); 7980347a6abSThierry Escande if (!cmd) { 7990347a6abSThierry Escande dev_kfree_skb(resp); 8000347a6abSThierry Escande return -ENOMEM; 8010347a6abSThierry Escande } 8020347a6abSThierry Escande 8030347a6abSThierry Escande cmd->code = cmd_code; 8040347a6abSThierry Escande cmd->req = req; 8050347a6abSThierry Escande cmd->resp = resp; 8060347a6abSThierry Escande cmd->resp_len = resp_len; 8070347a6abSThierry Escande cmd->complete_cb = complete_cb; 8080347a6abSThierry Escande cmd->complete_cb_context = complete_cb_context; 8090347a6abSThierry Escande 8100347a6abSThierry Escande port100_build_cmd_frame(dev, cmd_code, req); 8110347a6abSThierry Escande 8120347a6abSThierry Escande dev->cmd = cmd; 8130347a6abSThierry Escande 8140347a6abSThierry Escande rc = port100_send_frame_async(dev, req, resp, resp_len); 8150347a6abSThierry Escande if (rc) { 8160347a6abSThierry Escande kfree(cmd); 8170347a6abSThierry Escande dev_kfree_skb(resp); 8180347a6abSThierry Escande dev->cmd = NULL; 8190347a6abSThierry Escande } 8200347a6abSThierry Escande 8210347a6abSThierry Escande return rc; 8220347a6abSThierry Escande } 8230347a6abSThierry Escande 8240347a6abSThierry Escande struct port100_sync_cmd_response { 8250347a6abSThierry Escande struct sk_buff *resp; 8260347a6abSThierry Escande struct completion done; 8270347a6abSThierry Escande }; 8280347a6abSThierry Escande 8290347a6abSThierry Escande static void port100_wq_cmd_complete(struct work_struct *work) 8300347a6abSThierry Escande { 8310347a6abSThierry Escande struct port100 *dev = container_of(work, struct port100, 8320347a6abSThierry Escande cmd_complete_work); 8330347a6abSThierry Escande 8340347a6abSThierry Escande port100_send_async_complete(dev); 8350347a6abSThierry Escande } 8360347a6abSThierry Escande 8370347a6abSThierry Escande static void port100_send_sync_complete(struct port100 *dev, void *_arg, 8380347a6abSThierry Escande struct sk_buff *resp) 8390347a6abSThierry Escande { 8400347a6abSThierry Escande struct port100_sync_cmd_response *arg = _arg; 8410347a6abSThierry Escande 8420347a6abSThierry Escande arg->resp = resp; 8430347a6abSThierry Escande complete(&arg->done); 8440347a6abSThierry Escande } 8450347a6abSThierry Escande 8460347a6abSThierry Escande static struct sk_buff *port100_send_cmd_sync(struct port100 *dev, u8 cmd_code, 8470347a6abSThierry Escande struct sk_buff *req) 8480347a6abSThierry Escande { 8490347a6abSThierry Escande int rc; 8500347a6abSThierry Escande struct port100_sync_cmd_response arg; 8510347a6abSThierry Escande 8520347a6abSThierry Escande init_completion(&arg.done); 8530347a6abSThierry Escande 8540347a6abSThierry Escande rc = port100_send_cmd_async(dev, cmd_code, req, 8550347a6abSThierry Escande port100_send_sync_complete, &arg); 8560347a6abSThierry Escande if (rc) { 8570347a6abSThierry Escande dev_kfree_skb(req); 8580347a6abSThierry Escande return ERR_PTR(rc); 8590347a6abSThierry Escande } 8600347a6abSThierry Escande 8610347a6abSThierry Escande wait_for_completion(&arg.done); 8620347a6abSThierry Escande 8630347a6abSThierry Escande return arg.resp; 8640347a6abSThierry Escande } 8650347a6abSThierry Escande 8660347a6abSThierry Escande static void port100_send_complete(struct urb *urb) 8670347a6abSThierry Escande { 8680347a6abSThierry Escande struct port100 *dev = urb->context; 8690347a6abSThierry Escande 8700347a6abSThierry Escande switch (urb->status) { 8710347a6abSThierry Escande case 0: 8720347a6abSThierry Escande break; /* success */ 8730347a6abSThierry Escande case -ECONNRESET: 8740347a6abSThierry Escande case -ENOENT: 8750347a6abSThierry Escande nfc_err(&dev->interface->dev, 8760347a6abSThierry Escande "The urb has been stopped (status %d)", urb->status); 8770347a6abSThierry Escande break; 8780347a6abSThierry Escande case -ESHUTDOWN: 8790347a6abSThierry Escande default: 8800347a6abSThierry Escande nfc_err(&dev->interface->dev, "Urb failure (status %d)", 8810347a6abSThierry Escande urb->status); 8820347a6abSThierry Escande } 8830347a6abSThierry Escande } 8840347a6abSThierry Escande 885562d4d59SThierry Escande static void port100_abort_cmd(struct nfc_digital_dev *ddev) 886562d4d59SThierry Escande { 8870347a6abSThierry Escande struct port100 *dev = nfc_digital_get_drvdata(ddev); 8880347a6abSThierry Escande 8890347a6abSThierry Escande /* An ack will cancel the last issued command */ 8900347a6abSThierry Escande port100_send_ack(dev); 8910347a6abSThierry Escande 8920347a6abSThierry Escande /* cancel the urb request */ 8930347a6abSThierry Escande usb_kill_urb(dev->in_urb); 8940347a6abSThierry Escande } 8950347a6abSThierry Escande 8960347a6abSThierry Escande static struct sk_buff *port100_alloc_skb(struct port100 *dev, unsigned int size) 8970347a6abSThierry Escande { 8980347a6abSThierry Escande struct sk_buff *skb; 8990347a6abSThierry Escande 9000347a6abSThierry Escande skb = alloc_skb(dev->skb_headroom + dev->skb_tailroom + size, 9010347a6abSThierry Escande GFP_KERNEL); 9020347a6abSThierry Escande if (skb) 9030347a6abSThierry Escande skb_reserve(skb, dev->skb_headroom); 9040347a6abSThierry Escande 9050347a6abSThierry Escande return skb; 9060347a6abSThierry Escande } 9070347a6abSThierry Escande 9080347a6abSThierry Escande static int port100_set_command_type(struct port100 *dev, u8 command_type) 9090347a6abSThierry Escande { 9100347a6abSThierry Escande struct sk_buff *skb; 9110347a6abSThierry Escande struct sk_buff *resp; 9120347a6abSThierry Escande int rc; 9130347a6abSThierry Escande 9140347a6abSThierry Escande skb = port100_alloc_skb(dev, 1); 9150347a6abSThierry Escande if (!skb) 9160347a6abSThierry Escande return -ENOMEM; 9170347a6abSThierry Escande 9180347a6abSThierry Escande *skb_put(skb, sizeof(u8)) = command_type; 9190347a6abSThierry Escande 9200347a6abSThierry Escande resp = port100_send_cmd_sync(dev, PORT100_CMD_SET_COMMAND_TYPE, skb); 9210347a6abSThierry Escande if (IS_ERR(resp)) 9220347a6abSThierry Escande return PTR_ERR(resp); 9230347a6abSThierry Escande 9240347a6abSThierry Escande rc = resp->data[0]; 9250347a6abSThierry Escande 9260347a6abSThierry Escande dev_kfree_skb(resp); 9270347a6abSThierry Escande 9280347a6abSThierry Escande return rc; 9290347a6abSThierry Escande } 9300347a6abSThierry Escande 9310347a6abSThierry Escande static u64 port100_get_command_type_mask(struct port100 *dev) 9320347a6abSThierry Escande { 9330347a6abSThierry Escande struct sk_buff *skb; 9340347a6abSThierry Escande struct sk_buff *resp; 9350347a6abSThierry Escande u64 mask; 9360347a6abSThierry Escande 9370347a6abSThierry Escande skb = port100_alloc_skb(dev, 0); 9380347a6abSThierry Escande if (!skb) 9390347a6abSThierry Escande return -ENOMEM; 9400347a6abSThierry Escande 9410347a6abSThierry Escande resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_COMMAND_TYPE, skb); 9420347a6abSThierry Escande if (IS_ERR(resp)) 9430347a6abSThierry Escande return PTR_ERR(resp); 9440347a6abSThierry Escande 9450347a6abSThierry Escande if (resp->len < 8) 9460347a6abSThierry Escande mask = 0; 9470347a6abSThierry Escande else 9480347a6abSThierry Escande mask = be64_to_cpu(*(__be64 *)resp->data); 9490347a6abSThierry Escande 9500347a6abSThierry Escande dev_kfree_skb(resp); 9510347a6abSThierry Escande 9520347a6abSThierry Escande return mask; 9530347a6abSThierry Escande } 9540347a6abSThierry Escande 9550347a6abSThierry Escande static u16 port100_get_firmware_version(struct port100 *dev) 9560347a6abSThierry Escande { 9570347a6abSThierry Escande struct sk_buff *skb; 9580347a6abSThierry Escande struct sk_buff *resp; 9590347a6abSThierry Escande u16 fw_ver; 9600347a6abSThierry Escande 9610347a6abSThierry Escande skb = port100_alloc_skb(dev, 0); 9620347a6abSThierry Escande if (!skb) 9630347a6abSThierry Escande return 0; 9640347a6abSThierry Escande 9650347a6abSThierry Escande resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_FIRMWARE_VERSION, 9660347a6abSThierry Escande skb); 9670347a6abSThierry Escande if (IS_ERR(resp)) 9680347a6abSThierry Escande return 0; 9690347a6abSThierry Escande 9700347a6abSThierry Escande fw_ver = le16_to_cpu(*(__le16 *)resp->data); 9710347a6abSThierry Escande 9720347a6abSThierry Escande dev_kfree_skb(resp); 9730347a6abSThierry Escande 9740347a6abSThierry Escande return fw_ver; 975562d4d59SThierry Escande } 976562d4d59SThierry Escande 977562d4d59SThierry Escande static int port100_switch_rf(struct nfc_digital_dev *ddev, bool on) 978562d4d59SThierry Escande { 9799f7b57f2SThierry Escande struct port100 *dev = nfc_digital_get_drvdata(ddev); 9809f7b57f2SThierry Escande struct sk_buff *skb, *resp; 9819f7b57f2SThierry Escande 9829f7b57f2SThierry Escande skb = port100_alloc_skb(dev, 1); 9839f7b57f2SThierry Escande if (!skb) 9849f7b57f2SThierry Escande return -ENOMEM; 9859f7b57f2SThierry Escande 9869f7b57f2SThierry Escande *skb_put(skb, 1) = on ? 1 : 0; 9879f7b57f2SThierry Escande 9889f7b57f2SThierry Escande resp = port100_send_cmd_sync(dev, PORT100_CMD_SWITCH_RF, skb); 9899f7b57f2SThierry Escande 9909f7b57f2SThierry Escande if (IS_ERR(resp)) 9919f7b57f2SThierry Escande return PTR_ERR(resp); 9929f7b57f2SThierry Escande 9939f7b57f2SThierry Escande dev_kfree_skb(resp); 9949f7b57f2SThierry Escande 9959f7b57f2SThierry Escande return 0; 9969f7b57f2SThierry Escande } 9979f7b57f2SThierry Escande 9989f7b57f2SThierry Escande static int port100_in_set_rf(struct nfc_digital_dev *ddev, u8 rf) 9999f7b57f2SThierry Escande { 10009f7b57f2SThierry Escande struct port100 *dev = nfc_digital_get_drvdata(ddev); 10019f7b57f2SThierry Escande struct sk_buff *skb; 10029f7b57f2SThierry Escande struct sk_buff *resp; 10039f7b57f2SThierry Escande int rc; 10049f7b57f2SThierry Escande 10059f7b57f2SThierry Escande if (rf >= NFC_DIGITAL_RF_TECH_LAST) 10069f7b57f2SThierry Escande return -EINVAL; 10079f7b57f2SThierry Escande 10089f7b57f2SThierry Escande skb = port100_alloc_skb(dev, sizeof(struct port100_in_rf_setting)); 10099f7b57f2SThierry Escande if (!skb) 10109f7b57f2SThierry Escande return -ENOMEM; 10119f7b57f2SThierry Escande 10129f7b57f2SThierry Escande memcpy(skb_put(skb, sizeof(struct port100_in_rf_setting)), 10139f7b57f2SThierry Escande &in_rf_settings[rf], 10149f7b57f2SThierry Escande sizeof(struct port100_in_rf_setting)); 10159f7b57f2SThierry Escande 10169f7b57f2SThierry Escande resp = port100_send_cmd_sync(dev, PORT100_CMD_IN_SET_RF, skb); 10179f7b57f2SThierry Escande 10189f7b57f2SThierry Escande if (IS_ERR(resp)) 10199f7b57f2SThierry Escande return PTR_ERR(resp); 10209f7b57f2SThierry Escande 10219f7b57f2SThierry Escande rc = resp->data[0]; 10229f7b57f2SThierry Escande 10239f7b57f2SThierry Escande dev_kfree_skb(resp); 10249f7b57f2SThierry Escande 10259f7b57f2SThierry Escande return rc; 10269f7b57f2SThierry Escande } 10279f7b57f2SThierry Escande 10289f7b57f2SThierry Escande static int port100_in_set_framing(struct nfc_digital_dev *ddev, int param) 10299f7b57f2SThierry Escande { 10309f7b57f2SThierry Escande struct port100 *dev = nfc_digital_get_drvdata(ddev); 10319f7b57f2SThierry Escande struct port100_protocol *protocols; 10329f7b57f2SThierry Escande struct sk_buff *skb; 10339f7b57f2SThierry Escande struct sk_buff *resp; 10349f7b57f2SThierry Escande int num_protocols; 10359f7b57f2SThierry Escande size_t size; 10369f7b57f2SThierry Escande int rc; 10379f7b57f2SThierry Escande 10389f7b57f2SThierry Escande if (param >= NFC_DIGITAL_FRAMING_LAST) 10399f7b57f2SThierry Escande return -EINVAL; 10409f7b57f2SThierry Escande 10419f7b57f2SThierry Escande protocols = in_protocols[param]; 10429f7b57f2SThierry Escande 10439f7b57f2SThierry Escande num_protocols = 0; 10449f7b57f2SThierry Escande while (protocols[num_protocols].number != PORT100_IN_PROT_END) 10459f7b57f2SThierry Escande num_protocols++; 10469f7b57f2SThierry Escande 10479f7b57f2SThierry Escande if (!num_protocols) 10489f7b57f2SThierry Escande return 0; 10499f7b57f2SThierry Escande 10509f7b57f2SThierry Escande size = sizeof(struct port100_protocol) * num_protocols; 10519f7b57f2SThierry Escande 10529f7b57f2SThierry Escande skb = port100_alloc_skb(dev, size); 10539f7b57f2SThierry Escande if (!skb) 10549f7b57f2SThierry Escande return -ENOMEM; 10559f7b57f2SThierry Escande 10569f7b57f2SThierry Escande memcpy(skb_put(skb, size), protocols, size); 10579f7b57f2SThierry Escande 10589f7b57f2SThierry Escande resp = port100_send_cmd_sync(dev, PORT100_CMD_IN_SET_PROTOCOL, skb); 10599f7b57f2SThierry Escande 10609f7b57f2SThierry Escande if (IS_ERR(resp)) 10619f7b57f2SThierry Escande return PTR_ERR(resp); 10629f7b57f2SThierry Escande 10639f7b57f2SThierry Escande rc = resp->data[0]; 10649f7b57f2SThierry Escande 10659f7b57f2SThierry Escande dev_kfree_skb(resp); 10669f7b57f2SThierry Escande 10679f7b57f2SThierry Escande return rc; 1068562d4d59SThierry Escande } 1069562d4d59SThierry Escande 1070562d4d59SThierry Escande static int port100_in_configure_hw(struct nfc_digital_dev *ddev, int type, 1071562d4d59SThierry Escande int param) 1072562d4d59SThierry Escande { 10739f7b57f2SThierry Escande if (type == NFC_DIGITAL_CONFIG_RF_TECH) 10749f7b57f2SThierry Escande return port100_in_set_rf(ddev, param); 10759f7b57f2SThierry Escande 10769f7b57f2SThierry Escande if (type == NFC_DIGITAL_CONFIG_FRAMING) 10779f7b57f2SThierry Escande return port100_in_set_framing(ddev, param); 10789f7b57f2SThierry Escande 10799f7b57f2SThierry Escande return -EINVAL; 10809f7b57f2SThierry Escande } 10819f7b57f2SThierry Escande 10829f7b57f2SThierry Escande static void port100_in_comm_rf_complete(struct port100 *dev, void *arg, 10839f7b57f2SThierry Escande struct sk_buff *resp) 10849f7b57f2SThierry Escande { 10859f7b57f2SThierry Escande struct port100_cb_arg *cb_arg = arg; 10869f7b57f2SThierry Escande nfc_digital_cmd_complete_t cb = cb_arg->complete_cb; 10879f7b57f2SThierry Escande u32 status; 10889f7b57f2SThierry Escande int rc; 10899f7b57f2SThierry Escande 10909f7b57f2SThierry Escande if (IS_ERR(resp)) { 10919f7b57f2SThierry Escande rc = PTR_ERR(resp); 10929f7b57f2SThierry Escande goto exit; 10939f7b57f2SThierry Escande } 10949f7b57f2SThierry Escande 10959f7b57f2SThierry Escande if (resp->len < 4) { 10969f7b57f2SThierry Escande nfc_err(&dev->interface->dev, 10979f7b57f2SThierry Escande "Invalid packet length received.\n"); 10989f7b57f2SThierry Escande rc = -EIO; 10999f7b57f2SThierry Escande goto error; 11009f7b57f2SThierry Escande } 11019f7b57f2SThierry Escande 11029f7b57f2SThierry Escande status = le32_to_cpu(*(__le32 *)resp->data); 11039f7b57f2SThierry Escande 11049f7b57f2SThierry Escande skb_pull(resp, sizeof(u32)); 11059f7b57f2SThierry Escande 11069f7b57f2SThierry Escande if (status == PORT100_CMD_STATUS_TIMEOUT) { 11079f7b57f2SThierry Escande rc = -ETIMEDOUT; 11089f7b57f2SThierry Escande goto error; 11099f7b57f2SThierry Escande } 11109f7b57f2SThierry Escande 11119f7b57f2SThierry Escande if (status != PORT100_CMD_STATUS_OK) { 11129f7b57f2SThierry Escande nfc_err(&dev->interface->dev, 11139f7b57f2SThierry Escande "in_comm_rf failed with status 0x%08x\n", status); 11149f7b57f2SThierry Escande rc = -EIO; 11159f7b57f2SThierry Escande goto error; 11169f7b57f2SThierry Escande } 11179f7b57f2SThierry Escande 11189f7b57f2SThierry Escande /* Remove collision bits byte */ 11199f7b57f2SThierry Escande skb_pull(resp, 1); 11209f7b57f2SThierry Escande 11219f7b57f2SThierry Escande goto exit; 11229f7b57f2SThierry Escande 11239f7b57f2SThierry Escande error: 11249f7b57f2SThierry Escande kfree_skb(resp); 11259f7b57f2SThierry Escande resp = ERR_PTR(rc); 11269f7b57f2SThierry Escande 11279f7b57f2SThierry Escande exit: 11289f7b57f2SThierry Escande cb(dev->nfc_digital_dev, cb_arg->complete_arg, resp); 11299f7b57f2SThierry Escande 11309f7b57f2SThierry Escande kfree(cb_arg); 1131562d4d59SThierry Escande } 1132562d4d59SThierry Escande 1133562d4d59SThierry Escande static int port100_in_send_cmd(struct nfc_digital_dev *ddev, 1134562d4d59SThierry Escande struct sk_buff *skb, u16 _timeout, 1135562d4d59SThierry Escande nfc_digital_cmd_complete_t cb, void *arg) 1136562d4d59SThierry Escande { 11379f7b57f2SThierry Escande struct port100 *dev = nfc_digital_get_drvdata(ddev); 11389f7b57f2SThierry Escande struct port100_cb_arg *cb_arg; 11399f7b57f2SThierry Escande __le16 timeout; 11409f7b57f2SThierry Escande 11419f7b57f2SThierry Escande cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL); 11429f7b57f2SThierry Escande if (!cb_arg) 11439f7b57f2SThierry Escande return -ENOMEM; 11449f7b57f2SThierry Escande 11459f7b57f2SThierry Escande cb_arg->complete_cb = cb; 11469f7b57f2SThierry Escande cb_arg->complete_arg = arg; 11479f7b57f2SThierry Escande 11489f7b57f2SThierry Escande timeout = cpu_to_le16(_timeout * 10); 11499f7b57f2SThierry Escande 11509f7b57f2SThierry Escande memcpy(skb_push(skb, sizeof(__le16)), &timeout, sizeof(__le16)); 11519f7b57f2SThierry Escande 11529f7b57f2SThierry Escande return port100_send_cmd_async(dev, PORT100_CMD_IN_COMM_RF, skb, 11539f7b57f2SThierry Escande port100_in_comm_rf_complete, cb_arg); 1154562d4d59SThierry Escande } 1155562d4d59SThierry Escande 11567227c021SThierry Escande static int port100_tg_set_rf(struct nfc_digital_dev *ddev, u8 rf) 11577227c021SThierry Escande { 11587227c021SThierry Escande struct port100 *dev = nfc_digital_get_drvdata(ddev); 11597227c021SThierry Escande struct sk_buff *skb; 11607227c021SThierry Escande struct sk_buff *resp; 11617227c021SThierry Escande int rc; 11627227c021SThierry Escande 11637227c021SThierry Escande if (rf >= NFC_DIGITAL_RF_TECH_LAST) 11647227c021SThierry Escande return -EINVAL; 11657227c021SThierry Escande 11667227c021SThierry Escande skb = port100_alloc_skb(dev, sizeof(struct port100_tg_rf_setting)); 11677227c021SThierry Escande if (!skb) 11687227c021SThierry Escande return -ENOMEM; 11697227c021SThierry Escande 11707227c021SThierry Escande memcpy(skb_put(skb, sizeof(struct port100_tg_rf_setting)), 11717227c021SThierry Escande &tg_rf_settings[rf], 11727227c021SThierry Escande sizeof(struct port100_tg_rf_setting)); 11737227c021SThierry Escande 11747227c021SThierry Escande resp = port100_send_cmd_sync(dev, PORT100_CMD_TG_SET_RF, skb); 11757227c021SThierry Escande 11767227c021SThierry Escande if (IS_ERR(resp)) 11777227c021SThierry Escande return PTR_ERR(resp); 11787227c021SThierry Escande 11797227c021SThierry Escande rc = resp->data[0]; 11807227c021SThierry Escande 11817227c021SThierry Escande dev_kfree_skb(resp); 11827227c021SThierry Escande 11837227c021SThierry Escande return rc; 11847227c021SThierry Escande } 11857227c021SThierry Escande 11867227c021SThierry Escande static int port100_tg_set_framing(struct nfc_digital_dev *ddev, int param) 11877227c021SThierry Escande { 11887227c021SThierry Escande struct port100 *dev = nfc_digital_get_drvdata(ddev); 11897227c021SThierry Escande struct port100_protocol *protocols; 11907227c021SThierry Escande struct sk_buff *skb; 11917227c021SThierry Escande struct sk_buff *resp; 11927227c021SThierry Escande int rc; 11937227c021SThierry Escande int num_protocols; 11947227c021SThierry Escande size_t size; 11957227c021SThierry Escande 11967227c021SThierry Escande if (param >= NFC_DIGITAL_FRAMING_LAST) 11977227c021SThierry Escande return -EINVAL; 11987227c021SThierry Escande 11997227c021SThierry Escande protocols = tg_protocols[param]; 12007227c021SThierry Escande 12017227c021SThierry Escande num_protocols = 0; 12027227c021SThierry Escande while (protocols[num_protocols].number != PORT100_TG_PROT_END) 12037227c021SThierry Escande num_protocols++; 12047227c021SThierry Escande 12057227c021SThierry Escande if (!num_protocols) 12067227c021SThierry Escande return 0; 12077227c021SThierry Escande 12087227c021SThierry Escande size = sizeof(struct port100_protocol) * num_protocols; 12097227c021SThierry Escande 12107227c021SThierry Escande skb = port100_alloc_skb(dev, size); 12117227c021SThierry Escande if (!skb) 12127227c021SThierry Escande return -ENOMEM; 12137227c021SThierry Escande 12147227c021SThierry Escande memcpy(skb_put(skb, size), protocols, size); 12157227c021SThierry Escande 12167227c021SThierry Escande resp = port100_send_cmd_sync(dev, PORT100_CMD_TG_SET_PROTOCOL, skb); 12177227c021SThierry Escande 12187227c021SThierry Escande if (IS_ERR(resp)) 12197227c021SThierry Escande return PTR_ERR(resp); 12207227c021SThierry Escande 12217227c021SThierry Escande rc = resp->data[0]; 12227227c021SThierry Escande 12237227c021SThierry Escande dev_kfree_skb(resp); 12247227c021SThierry Escande 12257227c021SThierry Escande return rc; 12267227c021SThierry Escande } 12277227c021SThierry Escande 1228562d4d59SThierry Escande static int port100_tg_configure_hw(struct nfc_digital_dev *ddev, int type, 1229562d4d59SThierry Escande int param) 1230562d4d59SThierry Escande { 12317227c021SThierry Escande if (type == NFC_DIGITAL_CONFIG_RF_TECH) 12327227c021SThierry Escande return port100_tg_set_rf(ddev, param); 12337227c021SThierry Escande 12347227c021SThierry Escande if (type == NFC_DIGITAL_CONFIG_FRAMING) 12357227c021SThierry Escande return port100_tg_set_framing(ddev, param); 12367227c021SThierry Escande 12377227c021SThierry Escande return -EINVAL; 12387227c021SThierry Escande } 12397227c021SThierry Escande 12407227c021SThierry Escande static bool port100_tg_target_activated(struct port100 *dev, u8 tgt_activated) 12417227c021SThierry Escande { 12427227c021SThierry Escande u8 mask; 12437227c021SThierry Escande 12447227c021SThierry Escande switch (dev->cmd_type) { 12457227c021SThierry Escande case PORT100_CMD_TYPE_0: 12467227c021SThierry Escande mask = PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK; 12477227c021SThierry Escande break; 12487227c021SThierry Escande case PORT100_CMD_TYPE_1: 12497227c021SThierry Escande mask = PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK | 12507227c021SThierry Escande PORT100_MDAA_TGT_WAS_ACTIVATED_MASK; 12517227c021SThierry Escande break; 12527227c021SThierry Escande default: 12537227c021SThierry Escande nfc_err(&dev->interface->dev, "Unknonwn command type.\n"); 12547227c021SThierry Escande return false; 12557227c021SThierry Escande } 12567227c021SThierry Escande 12577227c021SThierry Escande return ((tgt_activated & mask) == mask); 12587227c021SThierry Escande } 12597227c021SThierry Escande 12607227c021SThierry Escande static void port100_tg_comm_rf_complete(struct port100 *dev, void *arg, 12617227c021SThierry Escande struct sk_buff *resp) 12627227c021SThierry Escande { 12637227c021SThierry Escande u32 status; 12647227c021SThierry Escande struct port100_cb_arg *cb_arg = arg; 12657227c021SThierry Escande nfc_digital_cmd_complete_t cb = cb_arg->complete_cb; 12667227c021SThierry Escande struct port100_tg_comm_rf_res *hdr; 12677227c021SThierry Escande 12687227c021SThierry Escande if (IS_ERR(resp)) 12697227c021SThierry Escande goto exit; 12707227c021SThierry Escande 12717227c021SThierry Escande hdr = (struct port100_tg_comm_rf_res *)resp->data; 12727227c021SThierry Escande 12737227c021SThierry Escande status = le32_to_cpu(hdr->status); 12747227c021SThierry Escande 12757227c021SThierry Escande if (cb_arg->mdaa && 12767227c021SThierry Escande !port100_tg_target_activated(dev, hdr->target_activated)) { 12777227c021SThierry Escande kfree_skb(resp); 12787227c021SThierry Escande resp = ERR_PTR(-ETIMEDOUT); 12797227c021SThierry Escande 12807227c021SThierry Escande goto exit; 12817227c021SThierry Escande } 12827227c021SThierry Escande 12837227c021SThierry Escande skb_pull(resp, sizeof(struct port100_tg_comm_rf_res)); 12847227c021SThierry Escande 12857227c021SThierry Escande if (status != PORT100_CMD_STATUS_OK) { 12867227c021SThierry Escande kfree_skb(resp); 12877227c021SThierry Escande 12887227c021SThierry Escande if (status == PORT100_CMD_STATUS_TIMEOUT) 12897227c021SThierry Escande resp = ERR_PTR(-ETIMEDOUT); 12907227c021SThierry Escande else 12917227c021SThierry Escande resp = ERR_PTR(-EIO); 12927227c021SThierry Escande } 12937227c021SThierry Escande 12947227c021SThierry Escande exit: 12957227c021SThierry Escande cb(dev->nfc_digital_dev, cb_arg->complete_arg, resp); 12967227c021SThierry Escande 12977227c021SThierry Escande kfree(cb_arg); 1298562d4d59SThierry Escande } 1299562d4d59SThierry Escande 1300562d4d59SThierry Escande static int port100_tg_send_cmd(struct nfc_digital_dev *ddev, 1301562d4d59SThierry Escande struct sk_buff *skb, u16 timeout, 1302562d4d59SThierry Escande nfc_digital_cmd_complete_t cb, void *arg) 1303562d4d59SThierry Escande { 13047227c021SThierry Escande struct port100 *dev = nfc_digital_get_drvdata(ddev); 13057227c021SThierry Escande struct port100_tg_comm_rf_cmd *hdr; 13067227c021SThierry Escande struct port100_cb_arg *cb_arg; 13077227c021SThierry Escande 13087227c021SThierry Escande cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL); 13097227c021SThierry Escande if (!cb_arg) 13107227c021SThierry Escande return -ENOMEM; 13117227c021SThierry Escande 13127227c021SThierry Escande cb_arg->complete_cb = cb; 13137227c021SThierry Escande cb_arg->complete_arg = arg; 13147227c021SThierry Escande 13157227c021SThierry Escande skb_push(skb, sizeof(struct port100_tg_comm_rf_cmd)); 13167227c021SThierry Escande 13177227c021SThierry Escande hdr = (struct port100_tg_comm_rf_cmd *)skb->data; 13187227c021SThierry Escande 13197227c021SThierry Escande memset(hdr, 0, sizeof(struct port100_tg_comm_rf_cmd)); 13207227c021SThierry Escande hdr->guard_time = cpu_to_le16(500); 13217227c021SThierry Escande hdr->send_timeout = cpu_to_le16(0xFFFF); 13227227c021SThierry Escande hdr->recv_timeout = cpu_to_le16(timeout); 13237227c021SThierry Escande 13247227c021SThierry Escande return port100_send_cmd_async(dev, PORT100_CMD_TG_COMM_RF, skb, 13257227c021SThierry Escande port100_tg_comm_rf_complete, cb_arg); 1326562d4d59SThierry Escande } 1327562d4d59SThierry Escande 1328562d4d59SThierry Escande static int port100_listen_mdaa(struct nfc_digital_dev *ddev, 1329562d4d59SThierry Escande struct digital_tg_mdaa_params *params, 1330562d4d59SThierry Escande u16 timeout, 1331562d4d59SThierry Escande nfc_digital_cmd_complete_t cb, void *arg) 1332562d4d59SThierry Escande { 13337227c021SThierry Escande struct port100 *dev = nfc_digital_get_drvdata(ddev); 13347227c021SThierry Escande struct port100_tg_comm_rf_cmd *hdr; 13357227c021SThierry Escande struct port100_cb_arg *cb_arg; 13367227c021SThierry Escande struct sk_buff *skb; 13377227c021SThierry Escande int rc; 13387227c021SThierry Escande 13397227c021SThierry Escande rc = port100_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, 13407227c021SThierry Escande NFC_DIGITAL_RF_TECH_106A); 13417227c021SThierry Escande if (rc) 13427227c021SThierry Escande return rc; 13437227c021SThierry Escande 13447227c021SThierry Escande rc = port100_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING, 13457227c021SThierry Escande NFC_DIGITAL_FRAMING_NFCA_NFC_DEP); 13467227c021SThierry Escande if (rc) 13477227c021SThierry Escande return rc; 13487227c021SThierry Escande 13497227c021SThierry Escande cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL); 13507227c021SThierry Escande if (!cb_arg) 13517227c021SThierry Escande return -ENOMEM; 13527227c021SThierry Escande 13537227c021SThierry Escande cb_arg->complete_cb = cb; 13547227c021SThierry Escande cb_arg->complete_arg = arg; 13557227c021SThierry Escande cb_arg->mdaa = 1; 13567227c021SThierry Escande 13577227c021SThierry Escande skb = port100_alloc_skb(dev, 0); 13587227c021SThierry Escande if (!skb) { 13597227c021SThierry Escande kfree(cb_arg); 13607227c021SThierry Escande return -ENOMEM; 13617227c021SThierry Escande } 13627227c021SThierry Escande 13637227c021SThierry Escande skb_push(skb, sizeof(struct port100_tg_comm_rf_cmd)); 13647227c021SThierry Escande hdr = (struct port100_tg_comm_rf_cmd *)skb->data; 13657227c021SThierry Escande 13667227c021SThierry Escande memset(hdr, 0, sizeof(struct port100_tg_comm_rf_cmd)); 13677227c021SThierry Escande 13687227c021SThierry Escande hdr->guard_time = 0; 13697227c021SThierry Escande hdr->send_timeout = cpu_to_le16(0xFFFF); 13707227c021SThierry Escande hdr->mdaa = 1; 13717227c021SThierry Escande hdr->nfca_param[0] = (params->sens_res >> 8) & 0xFF; 13727227c021SThierry Escande hdr->nfca_param[1] = params->sens_res & 0xFF; 13737227c021SThierry Escande memcpy(hdr->nfca_param + 2, params->nfcid1, 3); 13747227c021SThierry Escande hdr->nfca_param[5] = params->sel_res; 13757227c021SThierry Escande memcpy(hdr->nfcf_param, params->nfcid2, 8); 13767227c021SThierry Escande hdr->nfcf_param[16] = (params->sc >> 8) & 0xFF; 13777227c021SThierry Escande hdr->nfcf_param[17] = params->sc & 0xFF; 13787227c021SThierry Escande hdr->recv_timeout = cpu_to_le16(timeout); 13797227c021SThierry Escande 13807227c021SThierry Escande return port100_send_cmd_async(dev, PORT100_CMD_TG_COMM_RF, skb, 13817227c021SThierry Escande port100_tg_comm_rf_complete, cb_arg); 1382562d4d59SThierry Escande } 1383562d4d59SThierry Escande 1384562d4d59SThierry Escande static int port100_listen(struct nfc_digital_dev *ddev, u16 timeout, 1385562d4d59SThierry Escande nfc_digital_cmd_complete_t cb, void *arg) 1386562d4d59SThierry Escande { 13877227c021SThierry Escande struct port100 *dev = nfc_digital_get_drvdata(ddev); 13887227c021SThierry Escande struct sk_buff *skb; 13897227c021SThierry Escande 13907227c021SThierry Escande skb = port100_alloc_skb(dev, 0); 13917227c021SThierry Escande if (!skb) 13927227c021SThierry Escande return -ENOMEM; 13937227c021SThierry Escande 13947227c021SThierry Escande return port100_tg_send_cmd(ddev, skb, timeout, cb, arg); 1395562d4d59SThierry Escande } 1396562d4d59SThierry Escande 1397562d4d59SThierry Escande static struct nfc_digital_ops port100_digital_ops = { 1398562d4d59SThierry Escande .in_configure_hw = port100_in_configure_hw, 1399562d4d59SThierry Escande .in_send_cmd = port100_in_send_cmd, 1400562d4d59SThierry Escande 1401562d4d59SThierry Escande .tg_listen_mdaa = port100_listen_mdaa, 1402562d4d59SThierry Escande .tg_listen = port100_listen, 1403562d4d59SThierry Escande .tg_configure_hw = port100_tg_configure_hw, 1404562d4d59SThierry Escande .tg_send_cmd = port100_tg_send_cmd, 1405562d4d59SThierry Escande 1406562d4d59SThierry Escande .switch_rf = port100_switch_rf, 1407562d4d59SThierry Escande .abort_cmd = port100_abort_cmd, 1408562d4d59SThierry Escande }; 1409562d4d59SThierry Escande 1410562d4d59SThierry Escande static const struct usb_device_id port100_table[] = { 14114aa7ed02SAxel Lin { USB_DEVICE(SONY_VENDOR_ID, RCS380_PRODUCT_ID), }, 1412562d4d59SThierry Escande { } 1413562d4d59SThierry Escande }; 1414562d4d59SThierry Escande MODULE_DEVICE_TABLE(usb, port100_table); 1415562d4d59SThierry Escande 1416562d4d59SThierry Escande static int port100_probe(struct usb_interface *interface, 1417562d4d59SThierry Escande const struct usb_device_id *id) 1418562d4d59SThierry Escande { 1419562d4d59SThierry Escande struct port100 *dev; 1420562d4d59SThierry Escande int rc; 14210347a6abSThierry Escande struct usb_host_interface *iface_desc; 14220347a6abSThierry Escande struct usb_endpoint_descriptor *endpoint; 14230347a6abSThierry Escande int in_endpoint; 14240347a6abSThierry Escande int out_endpoint; 14250347a6abSThierry Escande u16 fw_version; 14260347a6abSThierry Escande u64 cmd_type_mask; 14270347a6abSThierry Escande int i; 1428562d4d59SThierry Escande 1429562d4d59SThierry Escande dev = devm_kzalloc(&interface->dev, sizeof(struct port100), GFP_KERNEL); 1430562d4d59SThierry Escande if (!dev) 1431562d4d59SThierry Escande return -ENOMEM; 1432562d4d59SThierry Escande 1433562d4d59SThierry Escande dev->udev = usb_get_dev(interface_to_usbdev(interface)); 1434562d4d59SThierry Escande dev->interface = interface; 1435562d4d59SThierry Escande usb_set_intfdata(interface, dev); 1436562d4d59SThierry Escande 14370347a6abSThierry Escande in_endpoint = out_endpoint = 0; 14380347a6abSThierry Escande iface_desc = interface->cur_altsetting; 14390347a6abSThierry Escande for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { 14400347a6abSThierry Escande endpoint = &iface_desc->endpoint[i].desc; 14410347a6abSThierry Escande 14420347a6abSThierry Escande if (!in_endpoint && usb_endpoint_is_bulk_in(endpoint)) 14430347a6abSThierry Escande in_endpoint = endpoint->bEndpointAddress; 14440347a6abSThierry Escande 14450347a6abSThierry Escande if (!out_endpoint && usb_endpoint_is_bulk_out(endpoint)) 14460347a6abSThierry Escande out_endpoint = endpoint->bEndpointAddress; 14470347a6abSThierry Escande } 14480347a6abSThierry Escande 14490347a6abSThierry Escande if (!in_endpoint || !out_endpoint) { 14500347a6abSThierry Escande nfc_err(&interface->dev, 14510347a6abSThierry Escande "Could not find bulk-in or bulk-out endpoint\n"); 14520347a6abSThierry Escande rc = -ENODEV; 14530347a6abSThierry Escande goto error; 14540347a6abSThierry Escande } 14550347a6abSThierry Escande 14560347a6abSThierry Escande dev->in_urb = usb_alloc_urb(0, GFP_KERNEL); 14570347a6abSThierry Escande dev->out_urb = usb_alloc_urb(0, GFP_KERNEL); 14580347a6abSThierry Escande 14590347a6abSThierry Escande if (!dev->in_urb || !dev->out_urb) { 14600347a6abSThierry Escande nfc_err(&interface->dev, "Could not allocate USB URBs\n"); 14610347a6abSThierry Escande rc = -ENOMEM; 14620347a6abSThierry Escande goto error; 14630347a6abSThierry Escande } 14640347a6abSThierry Escande 14650347a6abSThierry Escande usb_fill_bulk_urb(dev->in_urb, dev->udev, 14660347a6abSThierry Escande usb_rcvbulkpipe(dev->udev, in_endpoint), 14670347a6abSThierry Escande NULL, 0, NULL, dev); 14680347a6abSThierry Escande usb_fill_bulk_urb(dev->out_urb, dev->udev, 14690347a6abSThierry Escande usb_sndbulkpipe(dev->udev, out_endpoint), 14700347a6abSThierry Escande NULL, 0, port100_send_complete, dev); 14710347a6abSThierry Escande 14720347a6abSThierry Escande dev->skb_headroom = PORT100_FRAME_HEADER_LEN + 14730347a6abSThierry Escande PORT100_COMM_RF_HEAD_MAX_LEN; 14740347a6abSThierry Escande dev->skb_tailroom = PORT100_FRAME_TAIL_LEN; 14750347a6abSThierry Escande 14760347a6abSThierry Escande INIT_WORK(&dev->cmd_complete_work, port100_wq_cmd_complete); 14770347a6abSThierry Escande 14780347a6abSThierry Escande /* The first thing to do with the Port-100 is to set the command type 14790347a6abSThierry Escande * to be used. If supported we use command type 1. 0 otherwise. 14800347a6abSThierry Escande */ 14810347a6abSThierry Escande cmd_type_mask = port100_get_command_type_mask(dev); 14820347a6abSThierry Escande if (!cmd_type_mask) { 14830347a6abSThierry Escande nfc_err(&interface->dev, 14840347a6abSThierry Escande "Could not get supported command types.\n"); 14850347a6abSThierry Escande rc = -ENODEV; 14860347a6abSThierry Escande goto error; 14870347a6abSThierry Escande } 14880347a6abSThierry Escande 14890347a6abSThierry Escande if (PORT100_CMD_TYPE_IS_SUPPORTED(cmd_type_mask, PORT100_CMD_TYPE_1)) 14900347a6abSThierry Escande dev->cmd_type = PORT100_CMD_TYPE_1; 14910347a6abSThierry Escande else 14920347a6abSThierry Escande dev->cmd_type = PORT100_CMD_TYPE_0; 14930347a6abSThierry Escande 14940347a6abSThierry Escande rc = port100_set_command_type(dev, dev->cmd_type); 14950347a6abSThierry Escande if (rc) { 14960347a6abSThierry Escande nfc_err(&interface->dev, 14970347a6abSThierry Escande "The device does not support command type %u.\n", 14980347a6abSThierry Escande dev->cmd_type); 14990347a6abSThierry Escande goto error; 15000347a6abSThierry Escande } 15010347a6abSThierry Escande 15020347a6abSThierry Escande fw_version = port100_get_firmware_version(dev); 15030347a6abSThierry Escande if (!fw_version) 15040347a6abSThierry Escande nfc_err(&interface->dev, 15050347a6abSThierry Escande "Could not get device firmware version.\n"); 15060347a6abSThierry Escande 15070347a6abSThierry Escande nfc_info(&interface->dev, 15080347a6abSThierry Escande "Sony NFC Port-100 Series attached (firmware v%x.%02x)\n", 15090347a6abSThierry Escande (fw_version & 0xFF00) >> 8, fw_version & 0xFF); 1510562d4d59SThierry Escande 1511562d4d59SThierry Escande dev->nfc_digital_dev = nfc_digital_allocate_device(&port100_digital_ops, 1512562d4d59SThierry Escande PORT100_PROTOCOLS, 1513562d4d59SThierry Escande PORT100_CAPABILITIES, 1514562d4d59SThierry Escande dev->skb_headroom, 1515562d4d59SThierry Escande dev->skb_tailroom); 1516562d4d59SThierry Escande if (!dev->nfc_digital_dev) { 1517562d4d59SThierry Escande nfc_err(&interface->dev, 1518562d4d59SThierry Escande "Could not allocate nfc_digital_dev.\n"); 1519562d4d59SThierry Escande rc = -ENOMEM; 1520562d4d59SThierry Escande goto error; 1521562d4d59SThierry Escande } 1522562d4d59SThierry Escande 1523562d4d59SThierry Escande nfc_digital_set_parent_dev(dev->nfc_digital_dev, &interface->dev); 1524562d4d59SThierry Escande nfc_digital_set_drvdata(dev->nfc_digital_dev, dev); 1525562d4d59SThierry Escande 1526562d4d59SThierry Escande rc = nfc_digital_register_device(dev->nfc_digital_dev); 1527562d4d59SThierry Escande if (rc) { 1528562d4d59SThierry Escande nfc_err(&interface->dev, 1529562d4d59SThierry Escande "Could not register digital device.\n"); 1530562d4d59SThierry Escande goto free_nfc_dev; 1531562d4d59SThierry Escande } 1532562d4d59SThierry Escande 1533562d4d59SThierry Escande return 0; 1534562d4d59SThierry Escande 1535562d4d59SThierry Escande free_nfc_dev: 1536562d4d59SThierry Escande nfc_digital_free_device(dev->nfc_digital_dev); 1537562d4d59SThierry Escande 1538562d4d59SThierry Escande error: 15390347a6abSThierry Escande usb_free_urb(dev->in_urb); 15400347a6abSThierry Escande usb_free_urb(dev->out_urb); 15410347a6abSThierry Escande usb_put_dev(dev->udev); 15420347a6abSThierry Escande 1543562d4d59SThierry Escande return rc; 1544562d4d59SThierry Escande } 1545562d4d59SThierry Escande 1546562d4d59SThierry Escande static void port100_disconnect(struct usb_interface *interface) 1547562d4d59SThierry Escande { 1548562d4d59SThierry Escande struct port100 *dev; 1549562d4d59SThierry Escande 1550562d4d59SThierry Escande dev = usb_get_intfdata(interface); 1551562d4d59SThierry Escande usb_set_intfdata(interface, NULL); 1552562d4d59SThierry Escande 1553562d4d59SThierry Escande nfc_digital_unregister_device(dev->nfc_digital_dev); 1554562d4d59SThierry Escande nfc_digital_free_device(dev->nfc_digital_dev); 1555562d4d59SThierry Escande 15560347a6abSThierry Escande usb_kill_urb(dev->in_urb); 15570347a6abSThierry Escande usb_kill_urb(dev->out_urb); 15580347a6abSThierry Escande 15590347a6abSThierry Escande usb_free_urb(dev->in_urb); 15600347a6abSThierry Escande usb_free_urb(dev->out_urb); 1561c36aeba8SAlexey Khoroshilov usb_put_dev(dev->udev); 15620347a6abSThierry Escande 15630347a6abSThierry Escande kfree(dev->cmd); 15640347a6abSThierry Escande 1565562d4d59SThierry Escande nfc_info(&interface->dev, "Sony Port-100 NFC device disconnected"); 1566562d4d59SThierry Escande } 1567562d4d59SThierry Escande 1568562d4d59SThierry Escande static struct usb_driver port100_driver = { 1569562d4d59SThierry Escande .name = "port100", 1570562d4d59SThierry Escande .probe = port100_probe, 1571562d4d59SThierry Escande .disconnect = port100_disconnect, 1572562d4d59SThierry Escande .id_table = port100_table, 1573562d4d59SThierry Escande }; 1574562d4d59SThierry Escande 1575562d4d59SThierry Escande module_usb_driver(port100_driver); 1576562d4d59SThierry Escande 1577562d4d59SThierry Escande MODULE_DESCRIPTION("NFC Port-100 series usb driver ver " VERSION); 1578562d4d59SThierry Escande MODULE_VERSION(VERSION); 1579562d4d59SThierry Escande MODULE_LICENSE("GPL"); 1580