diff options
Diffstat (limited to 'drivers/nfc')
70 files changed, 776 insertions, 731 deletions
diff --git a/drivers/nfc/Kconfig b/drivers/nfc/Kconfig index b065eb605215..75c65d339018 100644 --- a/drivers/nfc/Kconfig +++ b/drivers/nfc/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Near Field Communication (NFC) devices # diff --git a/drivers/nfc/fdp/Kconfig b/drivers/nfc/fdp/Kconfig index fbccd9dd887d..f575d2aec553 100644 --- a/drivers/nfc/fdp/Kconfig +++ b/drivers/nfc/fdp/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config NFC_FDP tristate "Intel FDP NFC driver" depends on NFC_NCI diff --git a/drivers/nfc/fdp/Makefile b/drivers/nfc/fdp/Makefile index e79d51bdeec7..232f64637547 100644 --- a/drivers/nfc/fdp/Makefile +++ b/drivers/nfc/fdp/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for FDP NCI based NFC driver # diff --git a/drivers/nfc/fdp/fdp.c b/drivers/nfc/fdp/fdp.c index d5784a47fc13..0cc9ac856fe2 100644 --- a/drivers/nfc/fdp/fdp.c +++ b/drivers/nfc/fdp/fdp.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* ------------------------------------------------------------------------- * Copyright (C) 2014-2016, Intel Corporation * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that 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. * ------------------------------------------------------------------------- */ diff --git a/drivers/nfc/fdp/fdp.h b/drivers/nfc/fdp/fdp.h index 0bd36c00535d..9bd1f3f23e2d 100644 --- a/drivers/nfc/fdp/fdp.h +++ b/drivers/nfc/fdp/fdp.h @@ -1,15 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* ------------------------------------------------------------------------- * Copyright (C) 2014-2016, Intel Corporation * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that 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. * ------------------------------------------------------------------------- */ diff --git a/drivers/nfc/fdp/i2c.c b/drivers/nfc/fdp/i2c.c index d8d70dd830b0..ad0abb1f0bae 100644 --- a/drivers/nfc/fdp/i2c.c +++ b/drivers/nfc/fdp/i2c.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* ------------------------------------------------------------------------- * Copyright (C) 2014-2016, Intel Corporation * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that 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. * ------------------------------------------------------------------------- */ @@ -267,7 +259,7 @@ static void fdp_nci_i2c_read_device_properties(struct device *dev, *fw_vsc_cfg, len); if (r) { - devm_kfree(dev, fw_vsc_cfg); + devm_kfree(dev, *fw_vsc_cfg); goto vsc_read_err; } } else { diff --git a/drivers/nfc/mei_phy.c b/drivers/nfc/mei_phy.c index 8a04c5e02999..0f43bb389566 100644 --- a/drivers/nfc/mei_phy.c +++ b/drivers/nfc/mei_phy.c @@ -1,21 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * MEI Library for mei bus nfc device access - * - * Copyright (C) 2013 Intel Corporation. All rights reserved. - * - * 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. + * Copyright (c) 2013, Intel Corporation. * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. + * MEI Library for mei bus nfc device access */ - #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/module.h> diff --git a/drivers/nfc/microread/Kconfig b/drivers/nfc/microread/Kconfig index 2c6dbc9f6781..07be6d48a644 100644 --- a/drivers/nfc/microread/Kconfig +++ b/drivers/nfc/microread/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config NFC_MICROREAD tristate select CRC_CCITT diff --git a/drivers/nfc/microread/i2c.c b/drivers/nfc/microread/i2c.c index 1806d20a5e29..dd78d987e6c9 100644 --- a/drivers/nfc/microread/i2c.c +++ b/drivers/nfc/microread/i2c.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HCI based Driver for Inside Secure microread NFC Chip - i2c layer * * Copyright (C) 2013 Intel Corporation. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt diff --git a/drivers/nfc/microread/mei.c b/drivers/nfc/microread/mei.c index eb5eddf1794e..5dad8847a9b3 100644 --- a/drivers/nfc/microread/mei.c +++ b/drivers/nfc/microread/mei.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * HCI based Driver for Inside Secure microread NFC Chip - * - * Copyright (C) 2013 Intel Corporation. All rights reserved. - * - * 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. + * Copyright (C) 2013 Intel Corporation. All rights reserved. * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. + * HCI based Driver for Inside Secure microread NFC Chip */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt diff --git a/drivers/nfc/microread/microread.c b/drivers/nfc/microread/microread.c index e5d5d2d97409..8d3988457c58 100644 --- a/drivers/nfc/microread/microread.c +++ b/drivers/nfc/microread/microread.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HCI based Driver for Inside Secure microread NFC Chip * * Copyright (C) 2013 Intel Corporation. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt diff --git a/drivers/nfc/microread/microread.h b/drivers/nfc/microread/microread.h index f538641431a2..044f5e456375 100644 --- a/drivers/nfc/microread/microread.h +++ b/drivers/nfc/microread/microread.h @@ -1,18 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2011 - 2012 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef __LOCAL_MICROREAD_H_ diff --git a/drivers/nfc/nfcmrvl/Kconfig b/drivers/nfc/nfcmrvl/Kconfig index 670af76922e0..06f34fb4e0b0 100644 --- a/drivers/nfc/nfcmrvl/Kconfig +++ b/drivers/nfc/nfcmrvl/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config NFC_MRVL tristate help diff --git a/drivers/nfc/nfcmrvl/i2c.c b/drivers/nfc/nfcmrvl/i2c.c index 0f22379887ca..18cd96284b77 100644 --- a/drivers/nfc/nfcmrvl/i2c.c +++ b/drivers/nfc/nfcmrvl/i2c.c @@ -278,7 +278,6 @@ static struct i2c_driver nfcmrvl_i2c_driver = { .remove = nfcmrvl_i2c_remove, .driver = { .name = "nfcmrvl_i2c", - .owner = THIS_MODULE, .of_match_table = of_match_ptr(of_nfcmrvl_i2c_match), }, }; diff --git a/drivers/nfc/nfcmrvl/main.c b/drivers/nfc/nfcmrvl/main.c index e65d027b91fa..529be35ac178 100644 --- a/drivers/nfc/nfcmrvl/main.c +++ b/drivers/nfc/nfcmrvl/main.c @@ -244,7 +244,7 @@ void nfcmrvl_chip_reset(struct nfcmrvl_private *priv) /* Reset possible fault of previous session */ clear_bit(NFCMRVL_PHY_ERROR, &priv->flags); - if (priv->config.reset_n_io) { + if (gpio_is_valid(priv->config.reset_n_io)) { nfc_info(priv->dev, "reset the chip\n"); gpio_set_value(priv->config.reset_n_io, 0); usleep_range(5000, 10000); @@ -255,7 +255,7 @@ void nfcmrvl_chip_reset(struct nfcmrvl_private *priv) void nfcmrvl_chip_halt(struct nfcmrvl_private *priv) { - if (priv->config.reset_n_io) + if (gpio_is_valid(priv->config.reset_n_io)) gpio_set_value(priv->config.reset_n_io, 0); } diff --git a/drivers/nfc/nfcmrvl/uart.c b/drivers/nfc/nfcmrvl/uart.c index 9a22056e8d9e..e5a622ce4b95 100644 --- a/drivers/nfc/nfcmrvl/uart.c +++ b/drivers/nfc/nfcmrvl/uart.c @@ -26,7 +26,7 @@ static unsigned int hci_muxed; static unsigned int flow_control; static unsigned int break_control; -static unsigned int reset_n_io; +static int reset_n_io = -EINVAL; /* ** NFCMRVL NCI OPS @@ -231,5 +231,5 @@ MODULE_PARM_DESC(break_control, "Tell if UART driver must drive break signal."); module_param(hci_muxed, uint, 0); MODULE_PARM_DESC(hci_muxed, "Tell if transport is muxed in HCI one."); -module_param(reset_n_io, uint, 0); +module_param(reset_n_io, int, 0); MODULE_PARM_DESC(reset_n_io, "GPIO that is wired to RESET_N signal."); diff --git a/drivers/nfc/nfcmrvl/usb.c b/drivers/nfc/nfcmrvl/usb.c index 945cc903d8f1..888e298f610b 100644 --- a/drivers/nfc/nfcmrvl/usb.c +++ b/drivers/nfc/nfcmrvl/usb.c @@ -305,6 +305,7 @@ static int nfcmrvl_probe(struct usb_interface *intf, /* No configuration for USB */ memset(&config, 0, sizeof(config)); + config.reset_n_io = -EINVAL; nfc_info(&udev->dev, "intf %p id %p\n", intf, id); diff --git a/drivers/nfc/nfcsim.c b/drivers/nfc/nfcsim.c index 33449820e754..a9864fcdfba6 100644 --- a/drivers/nfc/nfcsim.c +++ b/drivers/nfc/nfcsim.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * NFC hardware simulation driver * Copyright (c) 2013, Intel Corporation. - * - * 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/device.h> diff --git a/drivers/nfc/nxp-nci/Kconfig b/drivers/nfc/nxp-nci/Kconfig index 37b40612520d..e1f71deab6fc 100644 --- a/drivers/nfc/nxp-nci/Kconfig +++ b/drivers/nfc/nxp-nci/Kconfig @@ -1,10 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0-only config NFC_NXP_NCI tristate "NXP-NCI NFC driver" depends on NFC_NCI - default n ---help--- - Generic core driver for NXP NCI chips such as the NPC100 - or PN7150 families. + Generic core driver for NXP NCI chips such as the NPC100 (PN547), + NPC300 (PN548) or PN7150 families. This is a driver based on the NCI NFC kernel layers and will thus not work with NXP libnfc library. @@ -22,4 +22,4 @@ config NFC_NXP_NCI_I2C To compile this driver as a module, choose m here. The module will be called nxp_nci_i2c. - Say Y if unsure. + Say N if unsure. diff --git a/drivers/nfc/nxp-nci/Makefile b/drivers/nfc/nxp-nci/Makefile index c9ec7869dbd2..3ff713a92e51 100644 --- a/drivers/nfc/nxp-nci/Makefile +++ b/drivers/nfc/nxp-nci/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for NXP-NCI NFC driver # diff --git a/drivers/nfc/nxp-nci/core.c b/drivers/nfc/nxp-nci/core.c index 2e4b004a96aa..a0ce95a287c5 100644 --- a/drivers/nfc/nxp-nci/core.c +++ b/drivers/nfc/nxp-nci/core.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Generic driver for NXP NCI NFC chips * @@ -7,25 +8,11 @@ * * Derived from PN544 device driver: * Copyright (C) 2012 Intel Corporation. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/delay.h> -#include <linux/gpio.h> #include <linux/module.h> #include <linux/nfc.h> -#include <linux/platform_data/nxp-nci.h> #include <net/nfc/nci_core.h> diff --git a/drivers/nfc/nxp-nci/firmware.c b/drivers/nfc/nxp-nci/firmware.c index e50c6f67bb39..dae0c8030e95 100644 --- a/drivers/nfc/nxp-nci/firmware.c +++ b/drivers/nfc/nxp-nci/firmware.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Generic driver for NXP NCI NFC chips * @@ -7,18 +8,6 @@ * * Derived from PN544 device driver: * Copyright (C) 2012 Intel Corporation. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/completion.h> diff --git a/drivers/nfc/nxp-nci/i2c.c b/drivers/nfc/nxp-nci/i2c.c index ba695e392c3b..307bd2afbe05 100644 --- a/drivers/nfc/nxp-nci/i2c.c +++ b/drivers/nfc/nxp-nci/i2c.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * I2C link layer for the NXP NCI driver * @@ -9,22 +10,8 @@ * * Derived from PN544 device driver: * Copyright (C) 2012 Intel Corporation. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - #include <linux/acpi.h> #include <linux/delay.h> #include <linux/i2c.h> @@ -32,9 +19,6 @@ #include <linux/module.h> #include <linux/nfc.h> #include <linux/gpio/consumer.h> -#include <linux/of_gpio.h> -#include <linux/of_irq.h> -#include <linux/platform_data/nxp-nci.h> #include <asm/unaligned.h> #include <net/nfc/nfc.h> @@ -49,8 +33,8 @@ struct nxp_nci_i2c_phy { struct i2c_client *i2c_dev; struct nci_dev *ndev; - unsigned int gpio_en; - unsigned int gpio_fw; + struct gpio_desc *gpiod_en; + struct gpio_desc *gpiod_fw; int hard_fault; /* * < 0 if hardware error occurred (e.g. i2c err) @@ -63,8 +47,8 @@ static int nxp_nci_i2c_set_mode(void *phy_id, { struct nxp_nci_i2c_phy *phy = (struct nxp_nci_i2c_phy *) phy_id; - gpio_set_value(phy->gpio_fw, (mode == NXP_NCI_MODE_FW) ? 1 : 0); - gpio_set_value(phy->gpio_en, (mode != NXP_NCI_MODE_COLD) ? 1 : 0); + gpiod_set_value(phy->gpiod_fw, (mode == NXP_NCI_MODE_FW) ? 1 : 0); + gpiod_set_value(phy->gpiod_en, (mode != NXP_NCI_MODE_COLD) ? 1 : 0); usleep_range(10000, 15000); if (mode == NXP_NCI_MODE_COLD) @@ -261,116 +245,55 @@ exit_irq_none: return IRQ_NONE; } -static int nxp_nci_i2c_parse_devtree(struct i2c_client *client) -{ - struct nxp_nci_i2c_phy *phy = i2c_get_clientdata(client); - struct device_node *pp; - int r; - - pp = client->dev.of_node; - if (!pp) - return -ENODEV; - - r = of_get_named_gpio(pp, "enable-gpios", 0); - if (r == -EPROBE_DEFER) - r = of_get_named_gpio(pp, "enable-gpios", 0); - if (r < 0) { - nfc_err(&client->dev, "Failed to get EN gpio, error: %d\n", r); - return r; - } - phy->gpio_en = r; - - r = of_get_named_gpio(pp, "firmware-gpios", 0); - if (r == -EPROBE_DEFER) - r = of_get_named_gpio(pp, "firmware-gpios", 0); - if (r < 0) { - nfc_err(&client->dev, "Failed to get FW gpio, error: %d\n", r); - return r; - } - phy->gpio_fw = r; - - return 0; -} - -static int nxp_nci_i2c_acpi_config(struct nxp_nci_i2c_phy *phy) -{ - struct i2c_client *client = phy->i2c_dev; - struct gpio_desc *gpiod_en, *gpiod_fw; - - gpiod_en = devm_gpiod_get_index(&client->dev, NULL, 2, GPIOD_OUT_LOW); - gpiod_fw = devm_gpiod_get_index(&client->dev, NULL, 1, GPIOD_OUT_LOW); - - if (IS_ERR(gpiod_en) || IS_ERR(gpiod_fw)) { - nfc_err(&client->dev, "No GPIOs\n"); - return -EINVAL; - } - - phy->gpio_en = desc_to_gpio(gpiod_en); - phy->gpio_fw = desc_to_gpio(gpiod_fw); +static const struct acpi_gpio_params firmware_gpios = { 1, 0, false }; +static const struct acpi_gpio_params enable_gpios = { 2, 0, false }; - return 0; -} +static const struct acpi_gpio_mapping acpi_nxp_nci_gpios[] = { + { "enable-gpios", &enable_gpios, 1 }, + { "firmware-gpios", &firmware_gpios, 1 }, + { } +}; static int nxp_nci_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct nxp_nci_i2c_phy *phy; - struct nxp_nci_nfc_platform_data *pdata; int r; if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { nfc_err(&client->dev, "Need I2C_FUNC_I2C\n"); - r = -ENODEV; - goto probe_exit; + return -ENODEV; } phy = devm_kzalloc(&client->dev, sizeof(struct nxp_nci_i2c_phy), GFP_KERNEL); - if (!phy) { - r = -ENOMEM; - goto probe_exit; - } + if (!phy) + return -ENOMEM; phy->i2c_dev = client; i2c_set_clientdata(client, phy); - pdata = client->dev.platform_data; - - if (!pdata && client->dev.of_node) { - r = nxp_nci_i2c_parse_devtree(client); - if (r < 0) { - nfc_err(&client->dev, "Failed to get DT data\n"); - goto probe_exit; - } - } else if (pdata) { - phy->gpio_en = pdata->gpio_en; - phy->gpio_fw = pdata->gpio_fw; - } else if (ACPI_HANDLE(&client->dev)) { - r = nxp_nci_i2c_acpi_config(phy); - if (r < 0) - goto probe_exit; - goto nci_probe; - } else { - nfc_err(&client->dev, "No platform data\n"); - r = -EINVAL; - goto probe_exit; - } + r = devm_acpi_dev_add_driver_gpios(dev, acpi_nxp_nci_gpios); + if (r) + return r; - r = devm_gpio_request_one(&phy->i2c_dev->dev, phy->gpio_en, - GPIOF_OUT_INIT_LOW, "nxp_nci_en"); - if (r < 0) - goto probe_exit; + phy->gpiod_en = devm_gpiod_get(dev, "enable", GPIOD_OUT_LOW); + if (IS_ERR(phy->gpiod_en)) { + nfc_err(dev, "Failed to get EN gpio\n"); + return PTR_ERR(phy->gpiod_en); + } - r = devm_gpio_request_one(&phy->i2c_dev->dev, phy->gpio_fw, - GPIOF_OUT_INIT_LOW, "nxp_nci_fw"); - if (r < 0) - goto probe_exit; + phy->gpiod_fw = devm_gpiod_get(dev, "firmware", GPIOD_OUT_LOW); + if (IS_ERR(phy->gpiod_fw)) { + nfc_err(dev, "Failed to get FW gpio\n"); + return PTR_ERR(phy->gpiod_fw); + } -nci_probe: r = nxp_nci_probe(phy, &client->dev, &i2c_phy_ops, NXP_NCI_I2C_MAX_PAYLOAD, &phy->ndev); if (r < 0) - goto probe_exit; + return r; r = request_threaded_irq(client->irq, NULL, nxp_nci_i2c_irq_thread_fn, @@ -379,7 +302,6 @@ nci_probe: if (r < 0) nfc_err(&client->dev, "Unable to register IRQ handler\n"); -probe_exit: return r; } @@ -401,14 +323,15 @@ MODULE_DEVICE_TABLE(i2c, nxp_nci_i2c_id_table); static const struct of_device_id of_nxp_nci_i2c_match[] = { { .compatible = "nxp,nxp-nci-i2c", }, - {}, + {} }; MODULE_DEVICE_TABLE(of, of_nxp_nci_i2c_match); #ifdef CONFIG_ACPI -static struct acpi_device_id acpi_id[] = { +static const struct acpi_device_id acpi_id[] = { + { "NXP1001" }, { "NXP7471" }, - { }, + { } }; MODULE_DEVICE_TABLE(acpi, acpi_id); #endif @@ -417,7 +340,7 @@ static struct i2c_driver nxp_nci_i2c_driver = { .driver = { .name = NXP_NCI_I2C_DRIVER_NAME, .acpi_match_table = ACPI_PTR(acpi_id), - .of_match_table = of_match_ptr(of_nxp_nci_i2c_match), + .of_match_table = of_nxp_nci_i2c_match, }, .probe = nxp_nci_i2c_probe, .id_table = nxp_nci_i2c_id_table, diff --git a/drivers/nfc/nxp-nci/nxp-nci.h b/drivers/nfc/nxp-nci/nxp-nci.h index 20408cbff4f1..ae3fb2735a4e 100644 --- a/drivers/nfc/nxp-nci/nxp-nci.h +++ b/drivers/nfc/nxp-nci/nxp-nci.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2014 NXP Semiconductors All rights reserved. * @@ -5,18 +6,6 @@ * * Derived from PN544 device driver: * Copyright (C) 2012 Intel Corporation. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef __LOCAL_NXP_NCI_H_ @@ -25,7 +14,6 @@ #include <linux/completion.h> #include <linux/firmware.h> #include <linux/nfc.h> -#include <linux/platform_data/nxp-nci.h> #include <net/nfc/nci_core.h> diff --git a/drivers/nfc/pn533/Kconfig b/drivers/nfc/pn533/Kconfig index d94122dd30e4..7fe1bbe26568 100644 --- a/drivers/nfc/pn533/Kconfig +++ b/drivers/nfc/pn533/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config NFC_PN533 tristate help @@ -25,3 +26,14 @@ config NFC_PN533_I2C If you choose to build a module, it'll be called pn533_i2c. Say N if unsure. + +config NFC_PN532_UART + tristate "NFC PN532 device support (UART)" + depends on SERIAL_DEV_BUS + select NFC_PN533 + ---help--- + This module adds support for the NXP pn532 UART interface. + Select this if your platform is using the UART bus. + + If you choose to build a module, it'll be called pn532_uart. + Say N if unsure. diff --git a/drivers/nfc/pn533/Makefile b/drivers/nfc/pn533/Makefile index 51d24c622fcb..b9648337576f 100644 --- a/drivers/nfc/pn533/Makefile +++ b/drivers/nfc/pn533/Makefile @@ -1,9 +1,12 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for PN533 NFC driver # pn533_usb-objs = usb.o pn533_i2c-objs = i2c.o +pn532_uart-objs = uart.o obj-$(CONFIG_NFC_PN533) += pn533.o obj-$(CONFIG_NFC_PN533_USB) += pn533_usb.o obj-$(CONFIG_NFC_PN533_I2C) += pn533_i2c.o +obj-$(CONFIG_NFC_PN532_UART) += pn532_uart.o diff --git a/drivers/nfc/pn533/i2c.c b/drivers/nfc/pn533/i2c.c index 4389eb4c8d0b..7507176cca0a 100644 --- a/drivers/nfc/pn533/i2c.c +++ b/drivers/nfc/pn533/i2c.c @@ -1,23 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for NXP PN533 NFC Chip - I2C transport layer * * Copyright (C) 2011 Instituto Nokia de Tecnologia * Copyright (C) 2012-2013 Tieto Poland * Copyright (C) 2016 HALE electronic - * - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/device.h> @@ -206,12 +193,10 @@ static int pn533_i2c_probe(struct i2c_client *client, phy->i2c_dev = client; i2c_set_clientdata(client, phy); - priv = pn533_register_device(PN533_DEVICE_PN532, - PN533_NO_TYPE_B_PROTOCOLS, - PN533_PROTO_REQ_ACK_RESP, - phy, &i2c_phy_ops, NULL, - &phy->i2c_dev->dev, - &client->dev); + priv = pn53x_common_init(PN533_DEVICE_PN532, + PN533_PROTO_REQ_ACK_RESP, + phy, &i2c_phy_ops, NULL, + &phy->i2c_dev->dev); if (IS_ERR(priv)) { r = PTR_ERR(priv); @@ -219,6 +204,9 @@ static int pn533_i2c_probe(struct i2c_client *client, } phy->priv = priv; + r = pn532_i2c_nfc_alloc(priv, PN533_NO_TYPE_B_PROTOCOLS, &client->dev); + if (r) + goto nfc_alloc_err; r = request_threaded_irq(client->irq, NULL, pn533_i2c_irq_thread_fn, IRQF_TRIGGER_FALLING | @@ -233,13 +221,20 @@ static int pn533_i2c_probe(struct i2c_client *client, if (r) goto fn_setup_err; - return 0; + r = nfc_register_device(priv->nfc_dev); + if (r) + goto fn_setup_err; + + return r; fn_setup_err: free_irq(client->irq, phy); irq_rqst_err: - pn533_unregister_device(phy->priv); + nfc_free_device(priv->nfc_dev); + +nfc_alloc_err: + pn53x_common_clean(phy->priv); return r; } @@ -252,12 +247,18 @@ static int pn533_i2c_remove(struct i2c_client *client) free_irq(client->irq, phy); - pn533_unregister_device(phy->priv); + pn53x_unregister_nfc(phy->priv); + pn53x_common_clean(phy->priv); return 0; } static const struct of_device_id of_pn533_i2c_match[] = { + { .compatible = "nxp,pn532", }, + /* + * NOTE: The use of the compatibles with the trailing "...-i2c" is + * deprecated and will be removed. + */ { .compatible = "nxp,pn533-i2c", }, { .compatible = "nxp,pn532-i2c", }, {}, diff --git a/drivers/nfc/pn533/pn533.c b/drivers/nfc/pn533/pn533.c index a0cc1cc45292..aa766e7ece70 100644 --- a/drivers/nfc/pn533/pn533.c +++ b/drivers/nfc/pn533/pn533.c @@ -1,21 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for NXP PN533 NFC Chip - core functions * * Copyright (C) 2011 Instituto Nokia de Tecnologia * Copyright (C) 2012-2013 Tieto Poland - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/device.h> @@ -197,6 +185,32 @@ struct pn533_cmd_jump_dep_response { u8 gt[]; } __packed; +struct pn532_autopoll_resp { + u8 type; + u8 ln; + u8 tg; + u8 tgdata[]; +}; + +/* PN532_CMD_IN_AUTOPOLL */ +#define PN532_AUTOPOLL_POLLNR_INFINITE 0xff +#define PN532_AUTOPOLL_PERIOD 0x03 /* in units of 150 ms */ + +#define PN532_AUTOPOLL_TYPE_GENERIC_106 0x00 +#define PN532_AUTOPOLL_TYPE_GENERIC_212 0x01 +#define PN532_AUTOPOLL_TYPE_GENERIC_424 0x02 +#define PN532_AUTOPOLL_TYPE_JEWEL 0x04 +#define PN532_AUTOPOLL_TYPE_MIFARE 0x10 +#define PN532_AUTOPOLL_TYPE_FELICA212 0x11 +#define PN532_AUTOPOLL_TYPE_FELICA424 0x12 +#define PN532_AUTOPOLL_TYPE_ISOA 0x20 +#define PN532_AUTOPOLL_TYPE_ISOB 0x23 +#define PN532_AUTOPOLL_TYPE_DEP_PASSIVE_106 0x40 +#define PN532_AUTOPOLL_TYPE_DEP_PASSIVE_212 0x41 +#define PN532_AUTOPOLL_TYPE_DEP_PASSIVE_424 0x42 +#define PN532_AUTOPOLL_TYPE_DEP_ACTIVE_106 0x80 +#define PN532_AUTOPOLL_TYPE_DEP_ACTIVE_212 0x81 +#define PN532_AUTOPOLL_TYPE_DEP_ACTIVE_424 0x82 /* PN533_TG_INIT_AS_TARGET */ #define PN533_INIT_TARGET_PASSIVE 0x1 @@ -1401,6 +1415,101 @@ static int pn533_poll_dep(struct nfc_dev *nfc_dev) return rc; } +static int pn533_autopoll_complete(struct pn533 *dev, void *arg, + struct sk_buff *resp) +{ + struct pn532_autopoll_resp *apr; + struct nfc_target nfc_tgt; + u8 nbtg; + int rc; + + if (IS_ERR(resp)) { + rc = PTR_ERR(resp); + + nfc_err(dev->dev, "%s autopoll complete error %d\n", + __func__, rc); + + if (rc == -ENOENT) { + if (dev->poll_mod_count != 0) + return rc; + goto stop_poll; + } else if (rc < 0) { + nfc_err(dev->dev, + "Error %d when running autopoll\n", rc); + goto stop_poll; + } + } + + nbtg = resp->data[0]; + if ((nbtg > 2) || (nbtg <= 0)) + return -EAGAIN; + + apr = (struct pn532_autopoll_resp *)&resp->data[1]; + while (nbtg--) { + memset(&nfc_tgt, 0, sizeof(struct nfc_target)); + switch (apr->type) { + case PN532_AUTOPOLL_TYPE_ISOA: + dev_dbg(dev->dev, "ISOA\n"); + rc = pn533_target_found_type_a(&nfc_tgt, apr->tgdata, + apr->ln - 1); + break; + case PN532_AUTOPOLL_TYPE_FELICA212: + case PN532_AUTOPOLL_TYPE_FELICA424: + dev_dbg(dev->dev, "FELICA\n"); + rc = pn533_target_found_felica(&nfc_tgt, apr->tgdata, + apr->ln - 1); + break; + case PN532_AUTOPOLL_TYPE_JEWEL: + dev_dbg(dev->dev, "JEWEL\n"); + rc = pn533_target_found_jewel(&nfc_tgt, apr->tgdata, + apr->ln - 1); + break; + case PN532_AUTOPOLL_TYPE_ISOB: + dev_dbg(dev->dev, "ISOB\n"); + rc = pn533_target_found_type_b(&nfc_tgt, apr->tgdata, + apr->ln - 1); + break; + case PN532_AUTOPOLL_TYPE_MIFARE: + dev_dbg(dev->dev, "Mifare\n"); + rc = pn533_target_found_type_a(&nfc_tgt, apr->tgdata, + apr->ln - 1); + break; + default: + nfc_err(dev->dev, + "Unknown current poll modulation\n"); + rc = -EPROTO; + } + + if (rc) + goto done; + + if (!(nfc_tgt.supported_protocols & dev->poll_protocols)) { + nfc_err(dev->dev, + "The Tg found doesn't have the desired protocol\n"); + rc = -EAGAIN; + goto done; + } + + dev->tgt_available_prots = nfc_tgt.supported_protocols; + apr = (struct pn532_autopoll_resp *) + (apr->tgdata + (apr->ln - 1)); + } + + pn533_poll_reset_mod_list(dev); + nfc_targets_found(dev->nfc_dev, &nfc_tgt, 1); + +done: + dev_kfree_skb(resp); + return rc; + +stop_poll: + nfc_err(dev->dev, "autopoll operation has been stopped\n"); + + pn533_poll_reset_mod_list(dev); + dev->poll_protocols = 0; + return rc; +} + static int pn533_poll_complete(struct pn533 *dev, void *arg, struct sk_buff *resp) { @@ -1544,6 +1653,7 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev, { struct pn533 *dev = nfc_get_drvdata(nfc_dev); struct pn533_poll_modulations *cur_mod; + struct sk_buff *skb; u8 rand_mod; int rc; @@ -1569,9 +1679,73 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev, tm_protocols = 0; } - pn533_poll_create_mod_list(dev, im_protocols, tm_protocols); dev->poll_protocols = im_protocols; dev->listen_protocols = tm_protocols; + if (dev->device_type == PN533_DEVICE_PN532_AUTOPOLL) { + skb = pn533_alloc_skb(dev, 4 + 6); + if (!skb) + return -ENOMEM; + + *((u8 *)skb_put(skb, sizeof(u8))) = + PN532_AUTOPOLL_POLLNR_INFINITE; + *((u8 *)skb_put(skb, sizeof(u8))) = PN532_AUTOPOLL_PERIOD; + + if ((im_protocols & NFC_PROTO_MIFARE_MASK) && + (im_protocols & NFC_PROTO_ISO14443_MASK) && + (im_protocols & NFC_PROTO_NFC_DEP_MASK)) + *((u8 *)skb_put(skb, sizeof(u8))) = + PN532_AUTOPOLL_TYPE_GENERIC_106; + else { + if (im_protocols & NFC_PROTO_MIFARE_MASK) + *((u8 *)skb_put(skb, sizeof(u8))) = + PN532_AUTOPOLL_TYPE_MIFARE; + + if (im_protocols & NFC_PROTO_ISO14443_MASK) + *((u8 *)skb_put(skb, sizeof(u8))) = + PN532_AUTOPOLL_TYPE_ISOA; + + if (im_protocols & NFC_PROTO_NFC_DEP_MASK) { + *((u8 *)skb_put(skb, sizeof(u8))) = + PN532_AUTOPOLL_TYPE_DEP_PASSIVE_106; + *((u8 *)skb_put(skb, sizeof(u8))) = + PN532_AUTOPOLL_TYPE_DEP_PASSIVE_212; + *((u8 *)skb_put(skb, sizeof(u8))) = + PN532_AUTOPOLL_TYPE_DEP_PASSIVE_424; + } + } + + if (im_protocols & NFC_PROTO_FELICA_MASK || + im_protocols & NFC_PROTO_NFC_DEP_MASK) { + *((u8 *)skb_put(skb, sizeof(u8))) = + PN532_AUTOPOLL_TYPE_FELICA212; + *((u8 *)skb_put(skb, sizeof(u8))) = + PN532_AUTOPOLL_TYPE_FELICA424; + } + + if (im_protocols & NFC_PROTO_JEWEL_MASK) + *((u8 *)skb_put(skb, sizeof(u8))) = + PN532_AUTOPOLL_TYPE_JEWEL; + + if (im_protocols & NFC_PROTO_ISO14443_B_MASK) + *((u8 *)skb_put(skb, sizeof(u8))) = + PN532_AUTOPOLL_TYPE_ISOB; + + if (tm_protocols) + *((u8 *)skb_put(skb, sizeof(u8))) = + PN532_AUTOPOLL_TYPE_DEP_ACTIVE_106; + + rc = pn533_send_cmd_async(dev, PN533_CMD_IN_AUTOPOLL, skb, + pn533_autopoll_complete, NULL); + + if (rc < 0) + dev_kfree_skb(skb); + else + dev->poll_mod_count++; + + return rc; + } + + pn533_poll_create_mod_list(dev, im_protocols, tm_protocols); /* Do not always start polling from the same modulation */ get_random_bytes(&rand_mod, sizeof(rand_mod)); @@ -2147,6 +2321,7 @@ static int pn533_transceive(struct nfc_dev *nfc_dev, break; } + /* fall through */ default: /* jumbo frame ? */ if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) { @@ -2273,6 +2448,7 @@ static void pn533_wq_mi_recv(struct work_struct *work) break; } + /* fall through */ default: skb_put_u8(skb, 1); /*TG*/ @@ -2468,7 +2644,11 @@ static int pn533_dev_up(struct nfc_dev *nfc_dev) { struct pn533 *dev = nfc_get_drvdata(nfc_dev); - if (dev->device_type == PN533_DEVICE_PN532) { + if (dev->phy_ops->dev_up) + dev->phy_ops->dev_up(dev); + + if ((dev->device_type == PN533_DEVICE_PN532) || + (dev->device_type == PN533_DEVICE_PN532_AUTOPOLL)) { int rc = pn532_sam_configuration(nfc_dev); if (rc) @@ -2480,7 +2660,14 @@ static int pn533_dev_up(struct nfc_dev *nfc_dev) static int pn533_dev_down(struct nfc_dev *nfc_dev) { - return pn533_rf_field(nfc_dev, 0); + struct pn533 *dev = nfc_get_drvdata(nfc_dev); + int ret; + + ret = pn533_rf_field(nfc_dev, 0); + if (dev->phy_ops->dev_down && !ret) + dev->phy_ops->dev_down(dev); + + return ret; } static struct nfc_ops pn533_nfc_ops = { @@ -2508,6 +2695,7 @@ static int pn533_setup(struct pn533 *dev) case PN533_DEVICE_PASORI: case PN533_DEVICE_ACR122U: case PN533_DEVICE_PN532: + case PN533_DEVICE_PN532_AUTOPOLL: max_retries.mx_rty_atr = 0x2; max_retries.mx_rty_psl = 0x1; max_retries.mx_rty_passive_act = @@ -2544,6 +2732,7 @@ static int pn533_setup(struct pn533 *dev) switch (dev->device_type) { case PN533_DEVICE_STD: case PN533_DEVICE_PN532: + case PN533_DEVICE_PN532_AUTOPOLL: break; case PN533_DEVICE_PASORI: @@ -2590,14 +2779,12 @@ int pn533_finalize_setup(struct pn533 *dev) } EXPORT_SYMBOL_GPL(pn533_finalize_setup); -struct pn533 *pn533_register_device(u32 device_type, - u32 protocols, +struct pn533 *pn53x_common_init(u32 device_type, enum pn533_protocol_type protocol_type, void *phy, struct pn533_phy_ops *phy_ops, struct pn533_frame_ops *fops, - struct device *dev, - struct device *parent) + struct device *dev) { struct pn533 *priv; int rc = -ENOMEM; @@ -2638,43 +2825,18 @@ struct pn533 *pn533_register_device(u32 device_type, skb_queue_head_init(&priv->fragment_skb); INIT_LIST_HEAD(&priv->cmd_queue); - - priv->nfc_dev = nfc_allocate_device(&pn533_nfc_ops, protocols, - priv->ops->tx_header_len + - PN533_CMD_DATAEXCH_HEAD_LEN, - priv->ops->tx_tail_len); - if (!priv->nfc_dev) { - rc = -ENOMEM; - goto destroy_wq; - } - - nfc_set_parent_dev(priv->nfc_dev, parent); - nfc_set_drvdata(priv->nfc_dev, priv); - - rc = nfc_register_device(priv->nfc_dev); - if (rc) - goto free_nfc_dev; - return priv; -free_nfc_dev: - nfc_free_device(priv->nfc_dev); - -destroy_wq: - destroy_workqueue(priv->wq); error: kfree(priv); return ERR_PTR(rc); } -EXPORT_SYMBOL_GPL(pn533_register_device); +EXPORT_SYMBOL_GPL(pn53x_common_init); -void pn533_unregister_device(struct pn533 *priv) +void pn53x_common_clean(struct pn533 *priv) { struct pn533_cmd *cmd, *n; - nfc_unregister_device(priv->nfc_dev); - nfc_free_device(priv->nfc_dev); - flush_delayed_work(&priv->poll_work); destroy_workqueue(priv->wq); @@ -2689,8 +2851,47 @@ void pn533_unregister_device(struct pn533 *priv) kfree(priv); } -EXPORT_SYMBOL_GPL(pn533_unregister_device); +EXPORT_SYMBOL_GPL(pn53x_common_clean); + +int pn532_i2c_nfc_alloc(struct pn533 *priv, u32 protocols, + struct device *parent) +{ + priv->nfc_dev = nfc_allocate_device(&pn533_nfc_ops, protocols, + priv->ops->tx_header_len + + PN533_CMD_DATAEXCH_HEAD_LEN, + priv->ops->tx_tail_len); + if (!priv->nfc_dev) + return -ENOMEM; + + nfc_set_parent_dev(priv->nfc_dev, parent); + nfc_set_drvdata(priv->nfc_dev, priv); + return 0; +} +EXPORT_SYMBOL_GPL(pn532_i2c_nfc_alloc); +int pn53x_register_nfc(struct pn533 *priv, u32 protocols, + struct device *parent) +{ + int rc; + + rc = pn532_i2c_nfc_alloc(priv, protocols, parent); + if (rc) + return rc; + + rc = nfc_register_device(priv->nfc_dev); + if (rc) + nfc_free_device(priv->nfc_dev); + + return rc; +} +EXPORT_SYMBOL_GPL(pn53x_register_nfc); + +void pn53x_unregister_nfc(struct pn533 *priv) +{ + nfc_unregister_device(priv->nfc_dev); + nfc_free_device(priv->nfc_dev); +} +EXPORT_SYMBOL_GPL(pn53x_unregister_nfc); MODULE_AUTHOR("Lauro Ramos Venancio <lauro.venancio@openbossa.org>"); MODULE_AUTHOR("Aloisio Almeida Jr <aloisio.almeida@openbossa.org>"); diff --git a/drivers/nfc/pn533/pn533.h b/drivers/nfc/pn533/pn533.h index 88d569666c51..b66f02a53167 100644 --- a/drivers/nfc/pn533/pn533.h +++ b/drivers/nfc/pn533/pn533.h @@ -1,27 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Driver for NXP PN533 NFC Chip * * Copyright (C) 2011 Instituto Nokia de Tecnologia * Copyright (C) 2012-2013 Tieto Poland - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ -#define PN533_DEVICE_STD 0x1 -#define PN533_DEVICE_PASORI 0x2 -#define PN533_DEVICE_ACR122U 0x3 -#define PN533_DEVICE_PN532 0x4 +#define PN533_DEVICE_STD 0x1 +#define PN533_DEVICE_PASORI 0x2 +#define PN533_DEVICE_ACR122U 0x3 +#define PN533_DEVICE_PN532 0x4 +#define PN533_DEVICE_PN532_AUTOPOLL 0x5 #define PN533_ALL_PROTOCOLS (NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK |\ NFC_PROTO_FELICA_MASK | NFC_PROTO_ISO14443_MASK |\ @@ -55,6 +44,11 @@ /* Preamble (1), SoPC (2), ACK Code (2), Postamble (1) */ #define PN533_STD_FRAME_ACK_SIZE 6 +/* + * Preamble (1), SoPC (2), Packet Length (1), Packet Length Checksum (1), + * Specific Application Level Error Code (1) , Postamble (1) + */ +#define PN533_STD_ERROR_FRAME_SIZE 8 #define PN533_STD_FRAME_CHECKSUM(f) (f->data[f->datalen]) #define PN533_STD_FRAME_POSTAMBLE(f) (f->data[f->datalen + 1]) /* Half start code (3), LEN (4) should be 0xffff for extended frame */ @@ -82,6 +76,7 @@ #define PN533_CMD_IN_ATR 0x50 #define PN533_CMD_IN_RELEASE 0x52 #define PN533_CMD_IN_JUMP_FOR_DEP 0x56 +#define PN533_CMD_IN_AUTOPOLL 0x60 #define PN533_CMD_TG_INIT_AS_TARGET 0x8c #define PN533_CMD_TG_GET_DATA 0x86 @@ -96,6 +91,9 @@ #define PN533_CMD_MI_MASK 0x40 #define PN533_CMD_RET_SUCCESS 0x00 +#define PN533_FRAME_DATALEN_ACK 0x00 +#define PN533_FRAME_DATALEN_ERROR 0x01 +#define PN533_FRAME_DATALEN_EXTENDED 0xFF enum pn533_protocol_type { PN533_PROTO_REQ_ACK_RESP = 0, @@ -219,21 +217,33 @@ struct pn533_phy_ops { struct sk_buff *out); int (*send_ack)(struct pn533 *dev, gfp_t flags); void (*abort_cmd)(struct pn533 *priv, gfp_t flags); + /* + * dev_up and dev_down are optional. + * They are used to inform the phy layer that the nfc chip + * is going to be really used very soon. The phy layer can then + * bring up it's interface to the chip and have it suspended for power + * saving reasons otherwise. + */ + void (*dev_up)(struct pn533 *priv); + void (*dev_down)(struct pn533 *priv); }; -struct pn533 *pn533_register_device(u32 device_type, - u32 protocols, +struct pn533 *pn53x_common_init(u32 device_type, enum pn533_protocol_type protocol_type, void *phy, struct pn533_phy_ops *phy_ops, struct pn533_frame_ops *fops, - struct device *dev, - struct device *parent); + struct device *dev); int pn533_finalize_setup(struct pn533 *dev); -void pn533_unregister_device(struct pn533 *priv); +void pn53x_common_clean(struct pn533 *priv); void pn533_recv_frame(struct pn533 *dev, struct sk_buff *skb, int status); +int pn532_i2c_nfc_alloc(struct pn533 *priv, u32 protocols, + struct device *parent); +int pn53x_register_nfc(struct pn533 *priv, u32 protocols, + struct device *parent); +void pn53x_unregister_nfc(struct pn533 *priv); bool pn533_rx_frame_is_cmd_response(struct pn533 *dev, void *frame); bool pn533_rx_frame_is_ack(void *_frame); diff --git a/drivers/nfc/pn533/uart.c b/drivers/nfc/pn533/uart.c new file mode 100644 index 000000000000..46e5ff16f699 --- /dev/null +++ b/drivers/nfc/pn533/uart.c @@ -0,0 +1,323 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Driver for NXP PN532 NFC Chip - UART transport layer + * + * Copyright (C) 2018 Lemonage Software GmbH + * Author: Lars Pöschel <poeschel@lemonage.de> + * All rights reserved. + */ + +#include <linux/device.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/nfc.h> +#include <linux/netdevice.h> +#include <linux/of.h> +#include <linux/serdev.h> +#include "pn533.h" + +#define PN532_UART_SKB_BUFF_LEN (PN533_CMD_DATAEXCH_DATA_MAXLEN * 2) + +enum send_wakeup { + PN532_SEND_NO_WAKEUP = 0, + PN532_SEND_WAKEUP, + PN532_SEND_LAST_WAKEUP, +}; + + +struct pn532_uart_phy { + struct serdev_device *serdev; + struct sk_buff *recv_skb; + struct pn533 *priv; + /* + * send_wakeup variable is used to control if we need to send a wakeup + * request to the pn532 chip prior to our actual command. There is a + * little propability of a race condition. We decided to not mutex the + * variable as the worst that could happen is, that we send a wakeup + * to the chip that is already awake. This does not hurt. It is a + * no-op to the chip. + */ + enum send_wakeup send_wakeup; + struct timer_list cmd_timeout; + struct sk_buff *cur_out_buf; +}; + +static int pn532_uart_send_frame(struct pn533 *dev, + struct sk_buff *out) +{ + /* wakeup sequence and dummy bytes for waiting time */ + static const u8 wakeup[] = { + 0x55, 0x55, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; + struct pn532_uart_phy *pn532 = dev->phy; + int err; + + print_hex_dump_debug("PN532_uart TX: ", DUMP_PREFIX_NONE, 16, 1, + out->data, out->len, false); + + pn532->cur_out_buf = out; + if (pn532->send_wakeup) { + err = serdev_device_write(pn532->serdev, + wakeup, sizeof(wakeup), + MAX_SCHEDULE_TIMEOUT); + if (err < 0) + return err; + } + + if (pn532->send_wakeup == PN532_SEND_LAST_WAKEUP) + pn532->send_wakeup = PN532_SEND_NO_WAKEUP; + + err = serdev_device_write(pn532->serdev, out->data, out->len, + MAX_SCHEDULE_TIMEOUT); + if (err < 0) + return err; + + mod_timer(&pn532->cmd_timeout, HZ / 40 + jiffies); + return 0; +} + +static int pn532_uart_send_ack(struct pn533 *dev, gfp_t flags) +{ + /* spec 7.1.1.3: Preamble, SoPC (2), ACK Code (2), Postamble */ + static const u8 ack[PN533_STD_FRAME_ACK_SIZE] = { + 0x00, 0x00, 0xff, 0x00, 0xff, 0x00}; + struct pn532_uart_phy *pn532 = dev->phy; + int err; + + err = serdev_device_write(pn532->serdev, ack, sizeof(ack), + MAX_SCHEDULE_TIMEOUT); + if (err < 0) + return err; + + return 0; +} + +static void pn532_uart_abort_cmd(struct pn533 *dev, gfp_t flags) +{ + /* An ack will cancel the last issued command */ + pn532_uart_send_ack(dev, flags); + /* schedule cmd_complete_work to finish current command execution */ + pn533_recv_frame(dev, NULL, -ENOENT); +} + +static void pn532_dev_up(struct pn533 *dev) +{ + struct pn532_uart_phy *pn532 = dev->phy; + + serdev_device_open(pn532->serdev); + pn532->send_wakeup = PN532_SEND_LAST_WAKEUP; +} + +static void pn532_dev_down(struct pn533 *dev) +{ + struct pn532_uart_phy *pn532 = dev->phy; + + serdev_device_close(pn532->serdev); + pn532->send_wakeup = PN532_SEND_WAKEUP; +} + +static struct pn533_phy_ops uart_phy_ops = { + .send_frame = pn532_uart_send_frame, + .send_ack = pn532_uart_send_ack, + .abort_cmd = pn532_uart_abort_cmd, + .dev_up = pn532_dev_up, + .dev_down = pn532_dev_down, +}; + +static void pn532_cmd_timeout(struct timer_list *t) +{ + struct pn532_uart_phy *dev = from_timer(dev, t, cmd_timeout); + + pn532_uart_send_frame(dev->priv, dev->cur_out_buf); +} + +/* + * scans the buffer if it contains a pn532 frame. It is not checked if the + * frame is really valid. This is later done with pn533_rx_frame_is_valid. + * This is useful for malformed or errornous transmitted frames. Adjusts the + * bufferposition where the frame starts, since pn533_recv_frame expects a + * well formed frame. + */ +static int pn532_uart_rx_is_frame(struct sk_buff *skb) +{ + struct pn533_std_frame *std; + struct pn533_ext_frame *ext; + u16 frame_len; + int i; + + for (i = 0; i + PN533_STD_FRAME_ACK_SIZE <= skb->len; i++) { + std = (struct pn533_std_frame *)&skb->data[i]; + /* search start code */ + if (std->start_frame != cpu_to_be16(PN533_STD_FRAME_SOF)) + continue; + + /* frame type */ + switch (std->datalen) { + case PN533_FRAME_DATALEN_ACK: + if (std->datalen_checksum == 0xff) { + skb_pull(skb, i); + return 1; + } + + break; + case PN533_FRAME_DATALEN_ERROR: + if ((std->datalen_checksum == 0xff) && + (skb->len >= + PN533_STD_ERROR_FRAME_SIZE)) { + skb_pull(skb, i); + return 1; + } + + break; + case PN533_FRAME_DATALEN_EXTENDED: + ext = (struct pn533_ext_frame *)&skb->data[i]; + frame_len = be16_to_cpu(ext->datalen); + if (skb->len >= frame_len + + sizeof(struct pn533_ext_frame) + + 2 /* CKS + Postamble */) { + skb_pull(skb, i); + return 1; + } + + break; + default: /* normal information frame */ + frame_len = std->datalen; + if (skb->len >= frame_len + + sizeof(struct pn533_std_frame) + + 2 /* CKS + Postamble */) { + skb_pull(skb, i); + return 1; + } + + break; + } + } + + return 0; +} + +static int pn532_receive_buf(struct serdev_device *serdev, + const unsigned char *data, size_t count) +{ + struct pn532_uart_phy *dev = serdev_device_get_drvdata(serdev); + size_t i; + + del_timer(&dev->cmd_timeout); + for (i = 0; i < count; i++) { + skb_put_u8(dev->recv_skb, *data++); + if (!pn532_uart_rx_is_frame(dev->recv_skb)) + continue; + + pn533_recv_frame(dev->priv, dev->recv_skb, 0); + dev->recv_skb = alloc_skb(PN532_UART_SKB_BUFF_LEN, GFP_KERNEL); + if (!dev->recv_skb) + return 0; + } + + return i; +} + +static struct serdev_device_ops pn532_serdev_ops = { + .receive_buf = pn532_receive_buf, + .write_wakeup = serdev_device_write_wakeup, +}; + +static const struct of_device_id pn532_uart_of_match[] = { + { .compatible = "nxp,pn532", }, + {}, +}; +MODULE_DEVICE_TABLE(of, pn532_uart_of_match); + +static int pn532_uart_probe(struct serdev_device *serdev) +{ + struct pn532_uart_phy *pn532; + struct pn533 *priv; + int err; + + err = -ENOMEM; + pn532 = kzalloc(sizeof(*pn532), GFP_KERNEL); + if (!pn532) + goto err_exit; + + pn532->recv_skb = alloc_skb(PN532_UART_SKB_BUFF_LEN, GFP_KERNEL); + if (!pn532->recv_skb) + goto err_free; + + pn532->serdev = serdev; + serdev_device_set_drvdata(serdev, pn532); + serdev_device_set_client_ops(serdev, &pn532_serdev_ops); + err = serdev_device_open(serdev); + if (err) { + dev_err(&serdev->dev, "Unable to open device\n"); + goto err_skb; + } + + err = serdev_device_set_baudrate(serdev, 115200); + if (err != 115200) { + err = -EINVAL; + goto err_serdev; + } + + serdev_device_set_flow_control(serdev, false); + pn532->send_wakeup = PN532_SEND_WAKEUP; + timer_setup(&pn532->cmd_timeout, pn532_cmd_timeout, 0); + priv = pn53x_common_init(PN533_DEVICE_PN532_AUTOPOLL, + PN533_PROTO_REQ_ACK_RESP, + pn532, &uart_phy_ops, NULL, + &pn532->serdev->dev); + if (IS_ERR(priv)) { + err = PTR_ERR(priv); + goto err_serdev; + } + + pn532->priv = priv; + err = pn533_finalize_setup(pn532->priv); + if (err) + goto err_clean; + + serdev_device_close(serdev); + err = pn53x_register_nfc(priv, PN533_NO_TYPE_B_PROTOCOLS, &serdev->dev); + if (err) { + pn53x_common_clean(pn532->priv); + goto err_skb; + } + + return err; + +err_clean: + pn53x_common_clean(pn532->priv); +err_serdev: + serdev_device_close(serdev); +err_skb: + kfree_skb(pn532->recv_skb); +err_free: + kfree(pn532); +err_exit: + return err; +} + +static void pn532_uart_remove(struct serdev_device *serdev) +{ + struct pn532_uart_phy *pn532 = serdev_device_get_drvdata(serdev); + + pn53x_unregister_nfc(pn532->priv); + serdev_device_close(serdev); + pn53x_common_clean(pn532->priv); + kfree_skb(pn532->recv_skb); + kfree(pn532); +} + +static struct serdev_device_driver pn532_uart_driver = { + .probe = pn532_uart_probe, + .remove = pn532_uart_remove, + .driver = { + .name = "pn532_uart", + .of_match_table = of_match_ptr(pn532_uart_of_match), + }, +}; + +module_serdev_device_driver(pn532_uart_driver); + +MODULE_AUTHOR("Lars Pöschel <poeschel@lemonage.de>"); +MODULE_DESCRIPTION("PN532 UART driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c index 5d823e965883..4590fbf82dc2 100644 --- a/drivers/nfc/pn533/usb.c +++ b/drivers/nfc/pn533/usb.c @@ -1,21 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Driver for NXP PN533 NFC Chip - USB transport layer * * Copyright (C) 2011 Instituto Nokia de Tecnologia * Copyright (C) 2012-2013 Tieto Poland - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/device.h> @@ -546,9 +534,9 @@ static int pn533_usb_probe(struct usb_interface *interface, goto error; } - priv = pn533_register_device(id->driver_info, protocols, protocol_type, + priv = pn53x_common_init(id->driver_info, protocol_type, phy, &usb_phy_ops, fops, - &phy->udev->dev, &interface->dev); + &phy->udev->dev); if (IS_ERR(priv)) { rc = PTR_ERR(priv); @@ -559,18 +547,28 @@ static int pn533_usb_probe(struct usb_interface *interface, rc = pn533_finalize_setup(priv); if (rc) - goto error; + goto err_clean; usb_set_intfdata(interface, phy); + rc = pn53x_register_nfc(priv, protocols, &interface->dev); + if (rc) + goto err_clean; return 0; +err_clean: + pn53x_common_clean(priv); error: + usb_kill_urb(phy->in_urb); + usb_kill_urb(phy->out_urb); + usb_kill_urb(phy->ack_urb); + usb_free_urb(phy->in_urb); usb_free_urb(phy->out_urb); usb_free_urb(phy->ack_urb); usb_put_dev(phy->udev); kfree(in_buf); + kfree(phy->ack_buffer); return rc; } @@ -582,7 +580,8 @@ static void pn533_usb_disconnect(struct usb_interface *interface) if (!phy) return; - pn533_unregister_device(phy->priv); + pn53x_unregister_nfc(phy->priv); + pn53x_common_clean(phy->priv); usb_set_intfdata(interface, NULL); diff --git a/drivers/nfc/pn544/Kconfig b/drivers/nfc/pn544/Kconfig index 2b8bde39540d..47ef5e3f25ff 100644 --- a/drivers/nfc/pn544/Kconfig +++ b/drivers/nfc/pn544/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config NFC_PN544 tristate select CRC_CCITT diff --git a/drivers/nfc/pn544/Makefile b/drivers/nfc/pn544/Makefile index 29fb5a174036..c013fd847da8 100644 --- a/drivers/nfc/pn544/Makefile +++ b/drivers/nfc/pn544/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for PN544 HCI based NFC driver # diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c index d0207f8e68b7..720c89d6066e 100644 --- a/drivers/nfc/pn544/i2c.c +++ b/drivers/nfc/pn544/i2c.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * I2C Link Layer for PN544 HCI based Driver * * Copyright (C) 2012 Intel Corporation. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt diff --git a/drivers/nfc/pn544/mei.c b/drivers/nfc/pn544/mei.c index ad57a8ec00d6..579bc599f545 100644 --- a/drivers/nfc/pn544/mei.c +++ b/drivers/nfc/pn544/mei.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* - * HCI based Driver for NXP pn544 NFC Chip - * * Copyright (C) 2013 Intel Corporation. All rights reserved. * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. + * HCI based Driver for NXP pn544 NFC Chip */ #include <linux/module.h> diff --git a/drivers/nfc/pn544/pn544.c b/drivers/nfc/pn544/pn544.c index 70e898e38b16..cda996f6954e 100644 --- a/drivers/nfc/pn544/pn544.c +++ b/drivers/nfc/pn544/pn544.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HCI based Driver for NXP PN544 NFC Chip * * Copyright (C) 2012 Intel Corporation. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt diff --git a/drivers/nfc/pn544/pn544.h b/drivers/nfc/pn544/pn544.h index 2aa9233e8086..5634ba215ead 100644 --- a/drivers/nfc/pn544/pn544.h +++ b/drivers/nfc/pn544/pn544.h @@ -1,18 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Copyright (C) 2011 - 2012 Intel Corporation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef __LOCAL_PN544_H_ diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c index bb43cebda9dc..145ddf3f0a45 100644 --- a/drivers/nfc/port100.c +++ b/drivers/nfc/port100.c @@ -1,18 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * 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> diff --git a/drivers/nfc/s3fwrn5/Kconfig b/drivers/nfc/s3fwrn5/Kconfig index 1eef9199486e..c4e86df392a4 100644 --- a/drivers/nfc/s3fwrn5/Kconfig +++ b/drivers/nfc/s3fwrn5/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config NFC_S3FWRN5 tristate select CRYPTO diff --git a/drivers/nfc/s3fwrn5/Makefile b/drivers/nfc/s3fwrn5/Makefile index ddfa7be7dd05..d0ffa35f50e8 100644 --- a/drivers/nfc/s3fwrn5/Makefile +++ b/drivers/nfc/s3fwrn5/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for Samsung S3FWRN5 NFC driver # diff --git a/drivers/nfc/s3fwrn5/core.c b/drivers/nfc/s3fwrn5/core.c index 9d9c8d57a042..91d4d5b28a7d 100644 --- a/drivers/nfc/s3fwrn5/core.c +++ b/drivers/nfc/s3fwrn5/core.c @@ -1,20 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * NCI based driver for Samsung S3FWRN5 NFC chip * * Copyright (C) 2015 Samsung Electrnoics * Robert Baldyga <r.baldyga@samsung.com> - * - * 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 or later, as published by the Free Software Foundation. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/module.h> diff --git a/drivers/nfc/s3fwrn5/firmware.c b/drivers/nfc/s3fwrn5/firmware.c index b7828fb252f2..be110d9cef02 100644 --- a/drivers/nfc/s3fwrn5/firmware.c +++ b/drivers/nfc/s3fwrn5/firmware.c @@ -1,20 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * NCI based driver for Samsung S3FWRN5 NFC chip * * Copyright (C) 2015 Samsung Electrnoics * Robert Baldyga <r.baldyga@samsung.com> - * - * 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 or later, as published by the Free Software Foundation. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/completion.h> @@ -449,7 +438,6 @@ int s3fwrn5_fw_download(struct s3fwrn5_fw_info *fw_info) SHASH_DESC_ON_STACK(desc, tfm); desc->tfm = tfm; - desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP; ret = crypto_shash_digest(desc, fw->image, image_size, hash_data); diff --git a/drivers/nfc/s3fwrn5/firmware.h b/drivers/nfc/s3fwrn5/firmware.h index 1ec0647ab917..cf1a83a5a525 100644 --- a/drivers/nfc/s3fwrn5/firmware.h +++ b/drivers/nfc/s3fwrn5/firmware.h @@ -1,20 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * NCI based driver for Samsung S3FWRN5 NFC chip * * Copyright (C) 2015 Samsung Electrnoics * Robert Baldyga <r.baldyga@samsung.com> - * - * 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 or later, as published by the Free Software Foundation. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef __LOCAL_S3FWRN5_FIRMWARE_H_ diff --git a/drivers/nfc/s3fwrn5/i2c.c b/drivers/nfc/s3fwrn5/i2c.c index 4da409e77a72..b4eb926d220a 100644 --- a/drivers/nfc/s3fwrn5/i2c.c +++ b/drivers/nfc/s3fwrn5/i2c.c @@ -1,20 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * I2C Link Layer for Samsung S3FWRN5 NCI based Driver * * Copyright (C) 2015 Samsung Electrnoics * Robert Baldyga <r.baldyga@samsung.com> - * - * 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 or later, as published by the Free Software Foundation. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/i2c.h> @@ -290,7 +279,6 @@ MODULE_DEVICE_TABLE(of, of_s3fwrn5_i2c_match); static struct i2c_driver s3fwrn5_i2c_driver = { .driver = { - .owner = THIS_MODULE, .name = S3FWRN5_I2C_DRIVER_NAME, .of_match_table = of_match_ptr(of_s3fwrn5_i2c_match), }, diff --git a/drivers/nfc/s3fwrn5/nci.c b/drivers/nfc/s3fwrn5/nci.c index 075e4e877b33..103bf5c92bdc 100644 --- a/drivers/nfc/s3fwrn5/nci.c +++ b/drivers/nfc/s3fwrn5/nci.c @@ -1,20 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * NCI based driver for Samsung S3FWRN5 NFC chip * * Copyright (C) 2015 Samsung Electrnoics * Robert Baldyga <r.baldyga@samsung.com> - * - * 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 or later, as published by the Free Software Foundation. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/completion.h> diff --git a/drivers/nfc/s3fwrn5/nci.h b/drivers/nfc/s3fwrn5/nci.h index 60c7fb575b66..23c0b28f247a 100644 --- a/drivers/nfc/s3fwrn5/nci.h +++ b/drivers/nfc/s3fwrn5/nci.h @@ -1,20 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * NCI based driver for Samsung S3FWRN5 NFC chip * * Copyright (C) 2015 Samsung Electrnoics * Robert Baldyga <r.baldyga@samsung.com> - * - * 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 or later, as published by the Free Software Foundation. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef __LOCAL_S3FWRN5_NCI_H_ diff --git a/drivers/nfc/s3fwrn5/s3fwrn5.h b/drivers/nfc/s3fwrn5/s3fwrn5.h index 7d5e516036fb..ede68bb5eeae 100644 --- a/drivers/nfc/s3fwrn5/s3fwrn5.h +++ b/drivers/nfc/s3fwrn5/s3fwrn5.h @@ -1,20 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * NCI based driver for Samsung S3FWRN5 NFC chip * * Copyright (C) 2015 Samsung Electrnoics * Robert Baldyga <r.baldyga@samsung.com> - * - * 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 or later, as published by the Free Software Foundation. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef __LOCAL_S3FWRN5_H_ diff --git a/drivers/nfc/st-nci/Kconfig b/drivers/nfc/st-nci/Kconfig index 5c6e21ccb19c..8fe53da46280 100644 --- a/drivers/nfc/st-nci/Kconfig +++ b/drivers/nfc/st-nci/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config NFC_ST_NCI tristate ---help--- diff --git a/drivers/nfc/st-nci/core.c b/drivers/nfc/st-nci/core.c index c693128ee6fb..110ff1281e5f 100644 --- a/drivers/nfc/st-nci/core.c +++ b/drivers/nfc/st-nci/core.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * NCI based Driver for STMicroelectronics NFC Chip * * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/module.h> diff --git a/drivers/nfc/st-nci/i2c.c b/drivers/nfc/st-nci/i2c.c index f9525ef87d57..55d600cd3861 100644 --- a/drivers/nfc/st-nci/i2c.c +++ b/drivers/nfc/st-nci/i2c.c @@ -1,18 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * I2C Link Layer for ST NCI NFC controller familly based Driver * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt @@ -83,7 +72,7 @@ static void st_nci_i2c_disable(void *phy_id) */ static int st_nci_i2c_write(void *phy_id, struct sk_buff *skb) { - int r = -1; + int r; struct st_nci_i2c_phy *phy = phy_id; struct i2c_client *client = phy->i2c_dev; diff --git a/drivers/nfc/st-nci/ndlc.c b/drivers/nfc/st-nci/ndlc.c index f26d938d240f..5d74c674368a 100644 --- a/drivers/nfc/st-nci/ndlc.c +++ b/drivers/nfc/st-nci/ndlc.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Low Level Transport (NDLC) Driver for STMicroelectronics NFC Chip * * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/sched.h> diff --git a/drivers/nfc/st-nci/ndlc.h b/drivers/nfc/st-nci/ndlc.h index bdf78ffd5bb7..066e2fd75238 100644 --- a/drivers/nfc/st-nci/ndlc.h +++ b/drivers/nfc/st-nci/ndlc.h @@ -1,19 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * NCI based Driver for STMicroelectronics NFC Chip * * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef __LOCAL_NDLC_H_ diff --git a/drivers/nfc/st-nci/se.c b/drivers/nfc/st-nci/se.c index f55d082ace71..f25f1ec5f9e9 100644 --- a/drivers/nfc/st-nci/se.c +++ b/drivers/nfc/st-nci/se.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Secure Element driver for STMicroelectronics NFC NCI chip * * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/module.h> @@ -344,6 +333,8 @@ static int st_nci_hci_connectivity_event_received(struct nci_dev *ndev, transaction = (struct nfc_evt_transaction *)devm_kzalloc(dev, skb->len - 2, GFP_KERNEL); + if (!transaction) + return -ENOMEM; transaction->aid_len = skb->data[1]; memcpy(transaction->aid, &skb->data[2], transaction->aid_len); diff --git a/drivers/nfc/st-nci/spi.c b/drivers/nfc/st-nci/spi.c index 14705591b0fb..8db323adebf0 100644 --- a/drivers/nfc/st-nci/spi.c +++ b/drivers/nfc/st-nci/spi.c @@ -1,18 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * SPI Link Layer for ST NCI based Driver * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt diff --git a/drivers/nfc/st-nci/st-nci.h b/drivers/nfc/st-nci/st-nci.h index afaf138b7e1b..5286071e52cf 100644 --- a/drivers/nfc/st-nci/st-nci.h +++ b/drivers/nfc/st-nci/st-nci.h @@ -1,19 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * NCI based Driver for STMicroelectronics NFC Chip * * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef __LOCAL_ST_NCI_H_ diff --git a/drivers/nfc/st-nci/vendor_cmds.c b/drivers/nfc/st-nci/vendor_cmds.c index 1a836c77c268..c6a9d30a4dba 100644 --- a/drivers/nfc/st-nci/vendor_cmds.c +++ b/drivers/nfc/st-nci/vendor_cmds.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Proprietary commands extension for STMicroelectronics NFC NCI Chip * * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <net/genetlink.h> diff --git a/drivers/nfc/st21nfca/Kconfig b/drivers/nfc/st21nfca/Kconfig index cc3bd5658901..ab20724afe17 100644 --- a/drivers/nfc/st21nfca/Kconfig +++ b/drivers/nfc/st21nfca/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config NFC_ST21NFCA tristate select CRC_CCITT diff --git a/drivers/nfc/st21nfca/Makefile b/drivers/nfc/st21nfca/Makefile index ded6489c3eeb..9fc5f0e994d1 100644 --- a/drivers/nfc/st21nfca/Makefile +++ b/drivers/nfc/st21nfca/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for ST21NFCA HCI based NFC driver # diff --git a/drivers/nfc/st21nfca/core.c b/drivers/nfc/st21nfca/core.c index e803fdfa9189..2ce17932a073 100644 --- a/drivers/nfc/st21nfca/core.c +++ b/drivers/nfc/st21nfca/core.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * HCI based Driver for STMicroelectronics NFC Chip * * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/module.h> @@ -719,6 +708,7 @@ static int st21nfca_hci_complete_target_discovered(struct nfc_hci_dev *hdev, NFC_PROTO_FELICA_MASK; } else { kfree_skb(nfcid_skb); + nfcid_skb = NULL; /* P2P in type A */ r = nfc_hci_get_param(hdev, ST21NFCA_RF_READER_F_GATE, ST21NFCA_RF_READER_F_NFCID1, diff --git a/drivers/nfc/st21nfca/dep.c b/drivers/nfc/st21nfca/dep.c index fd08be2917e6..60acdfd1cb8c 100644 --- a/drivers/nfc/st21nfca/dep.c +++ b/drivers/nfc/st21nfca/dep.c @@ -1,17 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <net/nfc/hci.h> @@ -400,6 +389,7 @@ static int st21nfca_tm_event_send_data(struct nfc_hci_dev *hdev, default: return 1; } + break; default: return 1; } @@ -619,6 +609,7 @@ static void st21nfca_im_recv_dep_res_cb(void *context, struct sk_buff *skb, switch (ST21NFCA_NFC_DEP_PFB_TYPE(dep_res->pfb)) { case ST21NFCA_NFC_DEP_PFB_ACK_NACK_PDU: pr_err("Received a ACK/NACK PDU\n"); + /* fall through */ case ST21NFCA_NFC_DEP_PFB_I_PDU: info->dep_info.curr_nfc_dep_pni = ST21NFCA_NFC_DEP_PFB_PNI(dep_res->pfb + 1); diff --git a/drivers/nfc/st21nfca/i2c.c b/drivers/nfc/st21nfca/i2c.c index 1b347096422f..23ed11f91213 100644 --- a/drivers/nfc/st21nfca/i2c.c +++ b/drivers/nfc/st21nfca/i2c.c @@ -1,18 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * I2C Link Layer for ST21NFCA HCI based Driver * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt diff --git a/drivers/nfc/st21nfca/se.c b/drivers/nfc/st21nfca/se.c index 4bed9e842db3..6586378cacb0 100644 --- a/drivers/nfc/st21nfca/se.c +++ b/drivers/nfc/st21nfca/se.c @@ -1,17 +1,6 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <net/nfc/hci.h> @@ -328,6 +317,8 @@ int st21nfca_connectivity_event_received(struct nfc_hci_dev *hdev, u8 host, transaction = (struct nfc_evt_transaction *)devm_kzalloc(dev, skb->len - 2, GFP_KERNEL); + if (!transaction) + return -ENOMEM; transaction->aid_len = skb->data[1]; memcpy(transaction->aid, &skb->data[2], diff --git a/drivers/nfc/st21nfca/st21nfca.h b/drivers/nfc/st21nfca/st21nfca.h index 94ffb0501e87..5e0de0fef1d4 100644 --- a/drivers/nfc/st21nfca/st21nfca.h +++ b/drivers/nfc/st21nfca/st21nfca.h @@ -1,17 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2014 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef __LOCAL_ST21NFCA_H_ diff --git a/drivers/nfc/st21nfca/vendor_cmds.c b/drivers/nfc/st21nfca/vendor_cmds.c index ab765e5478c0..62332ca91554 100644 --- a/drivers/nfc/st21nfca/vendor_cmds.c +++ b/drivers/nfc/st21nfca/vendor_cmds.c @@ -1,19 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Proprietary commands extension for STMicroelectronics NFC Chip * * Copyright (C) 2014-2015 STMicroelectronics SAS. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <net/genetlink.h> diff --git a/drivers/nfc/st95hf/Kconfig b/drivers/nfc/st95hf/Kconfig index 224f266fdcb6..e36f0bcfeba9 100644 --- a/drivers/nfc/st95hf/Kconfig +++ b/drivers/nfc/st95hf/Kconfig @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only config NFC_ST95HF tristate "ST95HF NFC Transceiver driver" depends on SPI && NFC_DIGITAL diff --git a/drivers/nfc/st95hf/Makefile b/drivers/nfc/st95hf/Makefile index 00760b38ab7e..699500b66a1a 100644 --- a/drivers/nfc/st95hf/Makefile +++ b/drivers/nfc/st95hf/Makefile @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only # # Makefile for STMicroelectronics NFC transceiver ST95HF # diff --git a/drivers/nfc/st95hf/core.c b/drivers/nfc/st95hf/core.c index 99727a2edda0..9642971e89ce 100644 --- a/drivers/nfc/st95hf/core.c +++ b/drivers/nfc/st95hf/core.c @@ -1,20 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * -------------------------------------------------------------------- * Driver for ST NFC Transceiver ST95HF * -------------------------------------------------------------------- * Copyright (C) 2015 STMicroelectronics Pvt. Ltd. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include <linux/err.h> @@ -327,7 +316,7 @@ static int st95hf_echo_command(struct st95hf_context *st95context) &echo_response); if (result) { dev_err(&st95context->spicontext.spidev->dev, - "err: echo response receieve error = 0x%x\n", result); + "err: echo response receive error = 0x%x\n", result); return result; } @@ -672,7 +661,7 @@ static int st95hf_error_handling(struct st95hf_context *stcontext, result = -ETIMEDOUT; else result = -EIO; - return result; + return result; } /* Check for CRC err only if CRC is present in the tag response */ diff --git a/drivers/nfc/st95hf/spi.c b/drivers/nfc/st95hf/spi.c index e2d3bbcc8c34..ffaf2789c406 100644 --- a/drivers/nfc/st95hf/spi.c +++ b/drivers/nfc/st95hf/spi.c @@ -1,20 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * ---------------------------------------------------------------------------- * drivers/nfc/st95hf/spi.c function definitions for SPI communication * ---------------------------------------------------------------------------- * Copyright (C) 2015 STMicroelectronics Pvt. Ltd. All rights reserved. - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #include "spi.h" diff --git a/drivers/nfc/st95hf/spi.h b/drivers/nfc/st95hf/spi.h index 552d220747cd..3ab678734c17 100644 --- a/drivers/nfc/st95hf/spi.h +++ b/drivers/nfc/st95hf/spi.h @@ -1,20 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * --------------------------------------------------------------------------- * drivers/nfc/st95hf/spi.h functions declarations for SPI communication * --------------------------------------------------------------------------- * Copyright (C) 2015 STMicroelectronics – All Rights Reserved - * - * 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 that 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. */ #ifndef __LINUX_ST95HF_SPI_H diff --git a/drivers/nfc/trf7970a.c b/drivers/nfc/trf7970a.c index eee5cc1a9220..e46adaac1c63 100644 --- a/drivers/nfc/trf7970a.c +++ b/drivers/nfc/trf7970a.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * TI TRF7970a RFID/NFC Transceiver Driver * @@ -6,10 +7,6 @@ * Author: Erick Macias <emacias@ti.com> * Author: Felipe Balbi <balbi@ti.com> * Author: Mark A. Greer <mgreer@animalcreek.com> - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 of - * the License as published by the Free Software Foundation. */ #include <linux/module.h> |