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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/nfc/nfcmrvl
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/nfc/nfcmrvl')
-rw-r--r--kernel/drivers/nfc/nfcmrvl/Kconfig43
-rw-r--r--kernel/drivers/nfc/nfcmrvl/Makefile11
-rw-r--r--kernel/drivers/nfc/nfcmrvl/fw_dnld.c559
-rw-r--r--kernel/drivers/nfc/nfcmrvl/fw_dnld.h98
-rw-r--r--kernel/drivers/nfc/nfcmrvl/i2c.c290
-rw-r--r--kernel/drivers/nfc/nfcmrvl/main.c178
-rw-r--r--kernel/drivers/nfc/nfcmrvl/nfcmrvl.h81
-rw-r--r--kernel/drivers/nfc/nfcmrvl/spi.c228
-rw-r--r--kernel/drivers/nfc/nfcmrvl/uart.c233
-rw-r--r--kernel/drivers/nfc/nfcmrvl/usb.c35
10 files changed, 1702 insertions, 54 deletions
diff --git a/kernel/drivers/nfc/nfcmrvl/Kconfig b/kernel/drivers/nfc/nfcmrvl/Kconfig
index 5e18afd9a..670af7692 100644
--- a/kernel/drivers/nfc/nfcmrvl/Kconfig
+++ b/kernel/drivers/nfc/nfcmrvl/Kconfig
@@ -1,18 +1,15 @@
config NFC_MRVL
- tristate "Marvell NFC driver support"
- depends on NFC_NCI
+ tristate
help
The core driver to support Marvell NFC devices.
This driver is required if you want to support
Marvell NFC device 8897.
- Say Y here to compile Marvell NFC driver into the kernel or
- say M to compile it as module.
-
config NFC_MRVL_USB
tristate "Marvell NFC-over-USB driver"
- depends on NFC_MRVL && USB
+ depends on NFC_NCI && USB
+ select NFC_MRVL
help
Marvell NFC-over-USB driver.
@@ -21,3 +18,37 @@ config NFC_MRVL_USB
Say Y here to compile support for Marvell NFC-over-USB driver
into the kernel or say M to compile it as module.
+
+config NFC_MRVL_UART
+ tristate "Marvell NFC-over-UART driver"
+ depends on NFC_NCI && NFC_NCI_UART
+ select NFC_MRVL
+ help
+ Marvell NFC-over-UART driver.
+
+ This driver provides support for Marvell NFC-over-UART devices
+
+ Say Y here to compile support for Marvell NFC-over-UART driver
+ into the kernel or say M to compile it as module.
+
+config NFC_MRVL_I2C
+ tristate "Marvell NFC-over-I2C driver"
+ depends on NFC_MRVL && I2C
+ help
+ Marvell NFC-over-I2C driver.
+
+ This driver provides support for Marvell NFC-over-I2C devices.
+
+ Say Y here to compile support for Marvell NFC-over-I2C driver
+ into the kernel or say M to compile it as module.
+
+config NFC_MRVL_SPI
+ tristate "Marvell NFC-over-SPI driver"
+ depends on NFC_MRVL && NFC_NCI_SPI
+ help
+ Marvell NFC-over-SPI driver.
+
+ This driver provides support for Marvell NFC-over-SPI devices.
+
+ Say Y here to compile support for Marvell NFC-over-SPI driver
+ into the kernel or say M to compile it as module.
diff --git a/kernel/drivers/nfc/nfcmrvl/Makefile b/kernel/drivers/nfc/nfcmrvl/Makefile
index 97a0de72d..fa07c7806 100644
--- a/kernel/drivers/nfc/nfcmrvl/Makefile
+++ b/kernel/drivers/nfc/nfcmrvl/Makefile
@@ -2,8 +2,17 @@
# Makefile for NFCMRVL NCI based NFC driver
#
-nfcmrvl-y += main.o
+nfcmrvl-y += main.o fw_dnld.o
obj-$(CONFIG_NFC_MRVL) += nfcmrvl.o
nfcmrvl_usb-y += usb.o
obj-$(CONFIG_NFC_MRVL_USB) += nfcmrvl_usb.o
+
+nfcmrvl_uart-y += uart.o
+obj-$(CONFIG_NFC_MRVL_UART) += nfcmrvl_uart.o
+
+nfcmrvl_i2c-y += i2c.o
+obj-$(CONFIG_NFC_MRVL_I2C) += nfcmrvl_i2c.o
+
+nfcmrvl_spi-y += spi.o
+obj-$(CONFIG_NFC_MRVL_SPI) += nfcmrvl_spi.o
diff --git a/kernel/drivers/nfc/nfcmrvl/fw_dnld.c b/kernel/drivers/nfc/nfcmrvl/fw_dnld.c
new file mode 100644
index 000000000..f8dcdf4b2
--- /dev/null
+++ b/kernel/drivers/nfc/nfcmrvl/fw_dnld.c
@@ -0,0 +1,559 @@
+/*
+ * Marvell NFC driver: Firmware downloader
+ *
+ * Copyright (C) 2015, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License"). You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available on the worldwide web at
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include <linux/module.h>
+#include <linux/unaligned/access_ok.h>
+#include <linux/firmware.h>
+#include <linux/nfc.h>
+#include <net/nfc/nci.h>
+#include <net/nfc/nci_core.h>
+#include "nfcmrvl.h"
+
+#define FW_DNLD_TIMEOUT 15000
+
+#define NCI_OP_PROPRIETARY_BOOT_CMD nci_opcode_pack(NCI_GID_PROPRIETARY, \
+ NCI_OP_PROP_BOOT_CMD)
+
+/* FW download states */
+
+enum {
+ STATE_RESET = 0,
+ STATE_INIT,
+ STATE_SET_REF_CLOCK,
+ STATE_SET_HI_CONFIG,
+ STATE_OPEN_LC,
+ STATE_FW_DNLD,
+ STATE_CLOSE_LC,
+ STATE_BOOT
+};
+
+enum {
+ SUBSTATE_WAIT_COMMAND = 0,
+ SUBSTATE_WAIT_ACK_CREDIT,
+ SUBSTATE_WAIT_NACK_CREDIT,
+ SUBSTATE_WAIT_DATA_CREDIT,
+};
+
+/*
+** Patterns for responses
+*/
+
+static const uint8_t nci_pattern_core_reset_ntf[] = {
+ 0x60, 0x00, 0x02, 0xA0, 0x01
+};
+
+static const uint8_t nci_pattern_core_init_rsp[] = {
+ 0x40, 0x01, 0x11
+};
+
+static const uint8_t nci_pattern_core_set_config_rsp[] = {
+ 0x40, 0x02, 0x02, 0x00, 0x00
+};
+
+static const uint8_t nci_pattern_core_conn_create_rsp[] = {
+ 0x40, 0x04, 0x04, 0x00
+};
+
+static const uint8_t nci_pattern_core_conn_close_rsp[] = {
+ 0x40, 0x05, 0x01, 0x00
+};
+
+static const uint8_t nci_pattern_core_conn_credits_ntf[] = {
+ 0x60, 0x06, 0x03, 0x01, NCI_CORE_LC_CONNID_PROP_FW_DL, 0x01
+};
+
+static const uint8_t nci_pattern_proprietary_boot_rsp[] = {
+ 0x4F, 0x3A, 0x01, 0x00
+};
+
+static struct sk_buff *alloc_lc_skb(struct nfcmrvl_private *priv, uint8_t plen)
+{
+ struct sk_buff *skb;
+ struct nci_data_hdr *hdr;
+
+ skb = nci_skb_alloc(priv->ndev, (NCI_DATA_HDR_SIZE + plen), GFP_KERNEL);
+ if (!skb) {
+ pr_err("no memory for data\n");
+ return NULL;
+ }
+
+ hdr = (struct nci_data_hdr *) skb_put(skb, NCI_DATA_HDR_SIZE);
+ hdr->conn_id = NCI_CORE_LC_CONNID_PROP_FW_DL;
+ hdr->rfu = 0;
+ hdr->plen = plen;
+
+ nci_mt_set((__u8 *)hdr, NCI_MT_DATA_PKT);
+ nci_pbf_set((__u8 *)hdr, NCI_PBF_LAST);
+
+ return skb;
+}
+
+static void fw_dnld_over(struct nfcmrvl_private *priv, u32 error)
+{
+ if (priv->fw_dnld.fw) {
+ release_firmware(priv->fw_dnld.fw);
+ priv->fw_dnld.fw = NULL;
+ priv->fw_dnld.header = NULL;
+ priv->fw_dnld.binary_config = NULL;
+ }
+
+ atomic_set(&priv->ndev->cmd_cnt, 0);
+
+ if (timer_pending(&priv->ndev->cmd_timer))
+ del_timer_sync(&priv->ndev->cmd_timer);
+
+ if (timer_pending(&priv->fw_dnld.timer))
+ del_timer_sync(&priv->fw_dnld.timer);
+
+ nfc_info(priv->dev, "FW loading over (%d)]\n", error);
+
+ if (error != 0) {
+ /* failed, halt the chip to avoid power consumption */
+ nfcmrvl_chip_halt(priv);
+ }
+
+ nfc_fw_download_done(priv->ndev->nfc_dev, priv->fw_dnld.name, error);
+}
+
+static void fw_dnld_timeout(unsigned long arg)
+{
+ struct nfcmrvl_private *priv = (struct nfcmrvl_private *) arg;
+
+ nfc_err(priv->dev, "FW loading timeout");
+ priv->fw_dnld.state = STATE_RESET;
+ fw_dnld_over(priv, -ETIMEDOUT);
+}
+
+static int process_state_reset(struct nfcmrvl_private *priv,
+ struct sk_buff *skb)
+{
+ if (sizeof(nci_pattern_core_reset_ntf) != skb->len ||
+ memcmp(skb->data, nci_pattern_core_reset_ntf,
+ sizeof(nci_pattern_core_reset_ntf)))
+ return -EINVAL;
+
+ nfc_info(priv->dev, "BootROM reset, start fw download\n");
+
+ /* Start FW download state machine */
+ priv->fw_dnld.state = STATE_INIT;
+ nci_send_cmd(priv->ndev, NCI_OP_CORE_INIT_CMD, 0, NULL);
+
+ return 0;
+}
+
+static int process_state_init(struct nfcmrvl_private *priv, struct sk_buff *skb)
+{
+ struct nci_core_set_config_cmd cmd;
+
+ if (sizeof(nci_pattern_core_init_rsp) >= skb->len ||
+ memcmp(skb->data, nci_pattern_core_init_rsp,
+ sizeof(nci_pattern_core_init_rsp)))
+ return -EINVAL;
+
+ cmd.num_params = 1;
+ cmd.param.id = NFCMRVL_PROP_REF_CLOCK;
+ cmd.param.len = 4;
+ memcpy(cmd.param.val, &priv->fw_dnld.header->ref_clock, 4);
+
+ nci_send_cmd(priv->ndev, NCI_OP_CORE_SET_CONFIG_CMD, 3 + cmd.param.len,
+ &cmd);
+
+ priv->fw_dnld.state = STATE_SET_REF_CLOCK;
+ return 0;
+}
+
+static void create_lc(struct nfcmrvl_private *priv)
+{
+ uint8_t param[2] = { NCI_CORE_LC_PROP_FW_DL, 0x0 };
+
+ priv->fw_dnld.state = STATE_OPEN_LC;
+ nci_send_cmd(priv->ndev, NCI_OP_CORE_CONN_CREATE_CMD, 2, param);
+}
+
+static int process_state_set_ref_clock(struct nfcmrvl_private *priv,
+ struct sk_buff *skb)
+{
+ struct nci_core_set_config_cmd cmd;
+
+ if (sizeof(nci_pattern_core_set_config_rsp) != skb->len ||
+ memcmp(skb->data, nci_pattern_core_set_config_rsp, skb->len))
+ return -EINVAL;
+
+ cmd.num_params = 1;
+ cmd.param.id = NFCMRVL_PROP_SET_HI_CONFIG;
+
+ switch (priv->phy) {
+ case NFCMRVL_PHY_UART:
+ cmd.param.len = 5;
+ memcpy(cmd.param.val,
+ &priv->fw_dnld.binary_config->uart.baudrate,
+ 4);
+ cmd.param.val[4] =
+ priv->fw_dnld.binary_config->uart.flow_control;
+ break;
+ case NFCMRVL_PHY_I2C:
+ cmd.param.len = 5;
+ memcpy(cmd.param.val,
+ &priv->fw_dnld.binary_config->i2c.clk,
+ 4);
+ cmd.param.val[4] = 0;
+ break;
+ case NFCMRVL_PHY_SPI:
+ cmd.param.len = 5;
+ memcpy(cmd.param.val,
+ &priv->fw_dnld.binary_config->spi.clk,
+ 4);
+ cmd.param.val[4] = 0;
+ break;
+ default:
+ create_lc(priv);
+ return 0;
+ }
+
+ priv->fw_dnld.state = STATE_SET_HI_CONFIG;
+ nci_send_cmd(priv->ndev, NCI_OP_CORE_SET_CONFIG_CMD, 3 + cmd.param.len,
+ &cmd);
+ return 0;
+}
+
+static int process_state_set_hi_config(struct nfcmrvl_private *priv,
+ struct sk_buff *skb)
+{
+ if (sizeof(nci_pattern_core_set_config_rsp) != skb->len ||
+ memcmp(skb->data, nci_pattern_core_set_config_rsp, skb->len))
+ return -EINVAL;
+
+ create_lc(priv);
+ return 0;
+}
+
+static int process_state_open_lc(struct nfcmrvl_private *priv,
+ struct sk_buff *skb)
+{
+ if (sizeof(nci_pattern_core_conn_create_rsp) >= skb->len ||
+ memcmp(skb->data, nci_pattern_core_conn_create_rsp,
+ sizeof(nci_pattern_core_conn_create_rsp)))
+ return -EINVAL;
+
+ priv->fw_dnld.state = STATE_FW_DNLD;
+ priv->fw_dnld.substate = SUBSTATE_WAIT_COMMAND;
+ priv->fw_dnld.offset = priv->fw_dnld.binary_config->offset;
+ return 0;
+}
+
+static int process_state_fw_dnld(struct nfcmrvl_private *priv,
+ struct sk_buff *skb)
+{
+ uint16_t len;
+ uint16_t comp_len;
+ struct sk_buff *out_skb;
+
+ switch (priv->fw_dnld.substate) {
+ case SUBSTATE_WAIT_COMMAND:
+ /*
+ * Command format:
+ * B0..2: NCI header
+ * B3 : Helper command (0xA5)
+ * B4..5: le16 data size
+ * B6..7: le16 data size complement (~)
+ * B8..N: payload
+ */
+
+ /* Remove NCI HDR */
+ skb_pull(skb, 3);
+ if (skb->data[0] != HELPER_CMD_PACKET_FORMAT || skb->len != 5) {
+ nfc_err(priv->dev, "bad command");
+ return -EINVAL;
+ }
+ skb_pull(skb, 1);
+ memcpy(&len, skb->data, 2);
+ skb_pull(skb, 2);
+ memcpy(&comp_len, skb->data, 2);
+ skb_pull(skb, 2);
+ len = get_unaligned_le16(&len);
+ comp_len = get_unaligned_le16(&comp_len);
+ if (((~len) & 0xFFFF) != comp_len) {
+ nfc_err(priv->dev, "bad len complement: %x %x %x",
+ len, comp_len, (~len & 0xFFFF));
+ out_skb = alloc_lc_skb(priv, 1);
+ if (!out_skb)
+ return -ENOMEM;
+ *skb_put(out_skb, 1) = 0xBF;
+ nci_send_frame(priv->ndev, out_skb);
+ priv->fw_dnld.substate = SUBSTATE_WAIT_NACK_CREDIT;
+ return 0;
+ }
+ priv->fw_dnld.chunk_len = len;
+ out_skb = alloc_lc_skb(priv, 1);
+ if (!out_skb)
+ return -ENOMEM;
+ *skb_put(out_skb, 1) = HELPER_ACK_PACKET_FORMAT;
+ nci_send_frame(priv->ndev, out_skb);
+ priv->fw_dnld.substate = SUBSTATE_WAIT_ACK_CREDIT;
+ break;
+
+ case SUBSTATE_WAIT_ACK_CREDIT:
+ if (sizeof(nci_pattern_core_conn_credits_ntf) != skb->len ||
+ memcmp(nci_pattern_core_conn_credits_ntf, skb->data,
+ skb->len)) {
+ nfc_err(priv->dev, "bad packet: waiting for credit");
+ return -EINVAL;
+ }
+ if (priv->fw_dnld.chunk_len == 0) {
+ /* FW Loading is done */
+ uint8_t conn_id = NCI_CORE_LC_CONNID_PROP_FW_DL;
+
+ priv->fw_dnld.state = STATE_CLOSE_LC;
+ nci_send_cmd(priv->ndev, NCI_OP_CORE_CONN_CLOSE_CMD,
+ 1, &conn_id);
+ } else {
+ out_skb = alloc_lc_skb(priv, priv->fw_dnld.chunk_len);
+ if (!out_skb)
+ return -ENOMEM;
+ memcpy(skb_put(out_skb, priv->fw_dnld.chunk_len),
+ ((uint8_t *)priv->fw_dnld.fw->data) +
+ priv->fw_dnld.offset,
+ priv->fw_dnld.chunk_len);
+ nci_send_frame(priv->ndev, out_skb);
+ priv->fw_dnld.substate = SUBSTATE_WAIT_DATA_CREDIT;
+ }
+ break;
+
+ case SUBSTATE_WAIT_DATA_CREDIT:
+ if (sizeof(nci_pattern_core_conn_credits_ntf) != skb->len ||
+ memcmp(nci_pattern_core_conn_credits_ntf, skb->data,
+ skb->len)) {
+ nfc_err(priv->dev, "bad packet: waiting for credit");
+ return -EINVAL;
+ }
+ priv->fw_dnld.offset += priv->fw_dnld.chunk_len;
+ priv->fw_dnld.chunk_len = 0;
+ priv->fw_dnld.substate = SUBSTATE_WAIT_COMMAND;
+ break;
+
+ case SUBSTATE_WAIT_NACK_CREDIT:
+ if (sizeof(nci_pattern_core_conn_credits_ntf) != skb->len ||
+ memcmp(nci_pattern_core_conn_credits_ntf, skb->data,
+ skb->len)) {
+ nfc_err(priv->dev, "bad packet: waiting for credit");
+ return -EINVAL;
+ }
+ priv->fw_dnld.substate = SUBSTATE_WAIT_COMMAND;
+ break;
+ }
+ return 0;
+}
+
+static int process_state_close_lc(struct nfcmrvl_private *priv,
+ struct sk_buff *skb)
+{
+ if (sizeof(nci_pattern_core_conn_close_rsp) != skb->len ||
+ memcmp(skb->data, nci_pattern_core_conn_close_rsp, skb->len))
+ return -EINVAL;
+
+ priv->fw_dnld.state = STATE_BOOT;
+ nci_send_cmd(priv->ndev, NCI_OP_PROPRIETARY_BOOT_CMD, 0, NULL);
+ return 0;
+}
+
+static int process_state_boot(struct nfcmrvl_private *priv, struct sk_buff *skb)
+{
+ if (sizeof(nci_pattern_proprietary_boot_rsp) != skb->len ||
+ memcmp(skb->data, nci_pattern_proprietary_boot_rsp, skb->len))
+ return -EINVAL;
+
+ /*
+ * Update HI config to use the right configuration for the next
+ * data exchanges.
+ */
+ priv->if_ops->nci_update_config(priv,
+ &priv->fw_dnld.binary_config->config);
+
+ if (priv->fw_dnld.binary_config == &priv->fw_dnld.header->helper) {
+ /*
+ * This is the case where an helper was needed and we have
+ * uploaded it. Now we have to wait the next RESET NTF to start
+ * FW download.
+ */
+ priv->fw_dnld.state = STATE_RESET;
+ priv->fw_dnld.binary_config = &priv->fw_dnld.header->firmware;
+ nfc_info(priv->dev, "FW loading: helper loaded");
+ } else {
+ nfc_info(priv->dev, "FW loading: firmware loaded");
+ fw_dnld_over(priv, 0);
+ }
+ return 0;
+}
+
+static void fw_dnld_rx_work(struct work_struct *work)
+{
+ int ret;
+ struct sk_buff *skb;
+ struct nfcmrvl_fw_dnld *fw_dnld = container_of(work,
+ struct nfcmrvl_fw_dnld,
+ rx_work);
+ struct nfcmrvl_private *priv = container_of(fw_dnld,
+ struct nfcmrvl_private,
+ fw_dnld);
+
+ while ((skb = skb_dequeue(&fw_dnld->rx_q))) {
+ nfc_send_to_raw_sock(priv->ndev->nfc_dev, skb,
+ RAW_PAYLOAD_NCI, NFC_DIRECTION_RX);
+ switch (fw_dnld->state) {
+ case STATE_RESET:
+ ret = process_state_reset(priv, skb);
+ break;
+ case STATE_INIT:
+ ret = process_state_init(priv, skb);
+ break;
+ case STATE_SET_REF_CLOCK:
+ ret = process_state_set_ref_clock(priv, skb);
+ break;
+ case STATE_SET_HI_CONFIG:
+ ret = process_state_set_hi_config(priv, skb);
+ break;
+ case STATE_OPEN_LC:
+ ret = process_state_open_lc(priv, skb);
+ break;
+ case STATE_FW_DNLD:
+ ret = process_state_fw_dnld(priv, skb);
+ break;
+ case STATE_CLOSE_LC:
+ ret = process_state_close_lc(priv, skb);
+ break;
+ case STATE_BOOT:
+ ret = process_state_boot(priv, skb);
+ break;
+ default:
+ ret = -EFAULT;
+ }
+
+ kfree_skb(skb);
+
+ if (ret != 0) {
+ nfc_err(priv->dev, "FW loading error");
+ fw_dnld_over(priv, ret);
+ break;
+ }
+ }
+}
+
+int nfcmrvl_fw_dnld_init(struct nfcmrvl_private *priv)
+{
+ char name[32];
+
+ INIT_WORK(&priv->fw_dnld.rx_work, fw_dnld_rx_work);
+ snprintf(name, sizeof(name), "%s_nfcmrvl_fw_dnld_rx_wq",
+ dev_name(priv->dev));
+ priv->fw_dnld.rx_wq = create_singlethread_workqueue(name);
+ if (!priv->fw_dnld.rx_wq)
+ return -ENOMEM;
+ skb_queue_head_init(&priv->fw_dnld.rx_q);
+ return 0;
+}
+
+void nfcmrvl_fw_dnld_deinit(struct nfcmrvl_private *priv)
+{
+ destroy_workqueue(priv->fw_dnld.rx_wq);
+}
+
+void nfcmrvl_fw_dnld_recv_frame(struct nfcmrvl_private *priv,
+ struct sk_buff *skb)
+{
+ /* Discard command timer */
+ if (timer_pending(&priv->ndev->cmd_timer))
+ del_timer_sync(&priv->ndev->cmd_timer);
+
+ /* Allow next command */
+ atomic_set(&priv->ndev->cmd_cnt, 1);
+
+ /* Queue and trigger rx work */
+ skb_queue_tail(&priv->fw_dnld.rx_q, skb);
+ queue_work(priv->fw_dnld.rx_wq, &priv->fw_dnld.rx_work);
+}
+
+void nfcmrvl_fw_dnld_abort(struct nfcmrvl_private *priv)
+{
+ fw_dnld_over(priv, -EHOSTDOWN);
+}
+
+int nfcmrvl_fw_dnld_start(struct nci_dev *ndev, const char *firmware_name)
+{
+ struct nfcmrvl_private *priv = nci_get_drvdata(ndev);
+ struct nfcmrvl_fw_dnld *fw_dnld = &priv->fw_dnld;
+
+ if (!priv->support_fw_dnld)
+ return -ENOTSUPP;
+
+ if (!firmware_name || !firmware_name[0])
+ return -EINVAL;
+
+ strcpy(fw_dnld->name, firmware_name);
+
+ /*
+ * Retrieve FW binary file and parse it to initialize FW download
+ * state machine.
+ */
+
+ /* Retrieve FW binary */
+ if (request_firmware(&fw_dnld->fw, firmware_name, priv->dev) < 0) {
+ nfc_err(priv->dev, "failed to retrieve FW %s", firmware_name);
+ return -ENOENT;
+ }
+
+ fw_dnld->header = (const struct nfcmrvl_fw *) priv->fw_dnld.fw->data;
+
+ if (fw_dnld->header->magic != NFCMRVL_FW_MAGIC ||
+ fw_dnld->header->phy != priv->phy) {
+ nfc_err(priv->dev, "bad firmware binary %s magic=0x%x phy=%d",
+ firmware_name, fw_dnld->header->magic,
+ fw_dnld->header->phy);
+ release_firmware(fw_dnld->fw);
+ fw_dnld->header = NULL;
+ return -EINVAL;
+ }
+
+ if (fw_dnld->header->helper.offset != 0) {
+ nfc_info(priv->dev, "loading helper");
+ fw_dnld->binary_config = &fw_dnld->header->helper;
+ } else {
+ nfc_info(priv->dev, "loading firmware");
+ fw_dnld->binary_config = &fw_dnld->header->firmware;
+ }
+
+ /* Configure a timer for timeout */
+ setup_timer(&priv->fw_dnld.timer, fw_dnld_timeout,
+ (unsigned long) priv);
+ mod_timer(&priv->fw_dnld.timer,
+ jiffies + msecs_to_jiffies(FW_DNLD_TIMEOUT));
+
+ /* Ronfigure HI to be sure that it is the bootrom values */
+ priv->if_ops->nci_update_config(priv,
+ &fw_dnld->header->bootrom.config);
+
+ /* Allow first command */
+ atomic_set(&priv->ndev->cmd_cnt, 1);
+
+ /* First, reset the chip */
+ priv->fw_dnld.state = STATE_RESET;
+ nfcmrvl_chip_reset(priv);
+
+ /* Now wait for CORE_RESET_NTF or timeout */
+
+ return 0;
+}
diff --git a/kernel/drivers/nfc/nfcmrvl/fw_dnld.h b/kernel/drivers/nfc/nfcmrvl/fw_dnld.h
new file mode 100644
index 000000000..ee4a339c0
--- /dev/null
+++ b/kernel/drivers/nfc/nfcmrvl/fw_dnld.h
@@ -0,0 +1,98 @@
+/**
+ * Marvell NFC driver: Firmware downloader
+ *
+ * Copyright (C) 2015, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License"). You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available on the worldwide web at
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
+ * this warranty disclaimer.
+ **/
+
+#ifndef __NFCMRVL_FW_DNLD_H__
+#define __NFCMRVL_FW_DNLD_H__
+
+#include <linux/workqueue.h>
+
+#define NFCMRVL_FW_MAGIC 0x88888888
+
+#define NCI_OP_PROP_BOOT_CMD 0x3A
+
+#define NCI_CORE_LC_PROP_FW_DL 0xFD
+#define NCI_CORE_LC_CONNID_PROP_FW_DL 0x02
+
+#define HELPER_CMD_ENTRY_POINT 0x04
+#define HELPER_CMD_PACKET_FORMAT 0xA5
+#define HELPER_ACK_PACKET_FORMAT 0x5A
+#define HELPER_RETRY_REQUESTED (1 << 15)
+
+struct nfcmrvl_private;
+
+struct nfcmrvl_fw_uart_config {
+ uint8_t flow_control;
+ uint32_t baudrate;
+} __packed;
+
+struct nfcmrvl_fw_i2c_config {
+ uint32_t clk;
+} __packed;
+
+struct nfcmrvl_fw_spi_config {
+ uint32_t clk;
+} __packed;
+
+struct nfcmrvl_fw_binary_config {
+ uint32_t offset;
+ union {
+ void *config;
+ struct nfcmrvl_fw_uart_config uart;
+ struct nfcmrvl_fw_i2c_config i2c;
+ struct nfcmrvl_fw_spi_config spi;
+ uint8_t reserved[64];
+ };
+} __packed;
+
+struct nfcmrvl_fw {
+ uint32_t magic;
+ uint32_t ref_clock;
+ uint32_t phy;
+ struct nfcmrvl_fw_binary_config bootrom;
+ struct nfcmrvl_fw_binary_config helper;
+ struct nfcmrvl_fw_binary_config firmware;
+ uint8_t reserved[64];
+} __packed;
+
+struct nfcmrvl_fw_dnld {
+ char name[NFC_FIRMWARE_NAME_MAXSIZE + 1];
+ const struct firmware *fw;
+
+ const struct nfcmrvl_fw *header;
+ const struct nfcmrvl_fw_binary_config *binary_config;
+
+ int state;
+ int substate;
+ int offset;
+ int chunk_len;
+
+ struct workqueue_struct *rx_wq;
+ struct work_struct rx_work;
+ struct sk_buff_head rx_q;
+
+ struct timer_list timer;
+};
+
+int nfcmrvl_fw_dnld_init(struct nfcmrvl_private *priv);
+void nfcmrvl_fw_dnld_deinit(struct nfcmrvl_private *priv);
+void nfcmrvl_fw_dnld_abort(struct nfcmrvl_private *priv);
+int nfcmrvl_fw_dnld_start(struct nci_dev *ndev, const char *firmware_name);
+void nfcmrvl_fw_dnld_recv_frame(struct nfcmrvl_private *priv,
+ struct sk_buff *skb);
+
+#endif
diff --git a/kernel/drivers/nfc/nfcmrvl/i2c.c b/kernel/drivers/nfc/nfcmrvl/i2c.c
new file mode 100644
index 000000000..78b7aa835
--- /dev/null
+++ b/kernel/drivers/nfc/nfcmrvl/i2c.c
@@ -0,0 +1,290 @@
+/**
+ * Marvell NFC-over-I2C driver: I2C interface related functions
+ *
+ * Copyright (C) 2015, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License"). You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available on the worldwide web at
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
+ * this warranty disclaimer.
+ **/
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/pm_runtime.h>
+#include <linux/nfc.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/of_irq.h>
+#include <linux/of_gpio.h>
+#include <net/nfc/nci.h>
+#include <net/nfc/nci_core.h>
+#include "nfcmrvl.h"
+
+struct nfcmrvl_i2c_drv_data {
+ unsigned long flags;
+ struct device *dev;
+ struct i2c_client *i2c;
+ struct nfcmrvl_private *priv;
+};
+
+static int nfcmrvl_i2c_read(struct nfcmrvl_i2c_drv_data *drv_data,
+ struct sk_buff **skb)
+{
+ int ret;
+ struct nci_ctrl_hdr nci_hdr;
+
+ /* Read NCI header to know the payload size */
+ ret = i2c_master_recv(drv_data->i2c, (u8 *)&nci_hdr, NCI_CTRL_HDR_SIZE);
+ if (ret != NCI_CTRL_HDR_SIZE) {
+ nfc_err(&drv_data->i2c->dev, "cannot read NCI header\n");
+ return -EBADMSG;
+ }
+
+ if (nci_hdr.plen > NCI_MAX_PAYLOAD_SIZE) {
+ nfc_err(&drv_data->i2c->dev, "invalid packet payload size\n");
+ return -EBADMSG;
+ }
+
+ *skb = nci_skb_alloc(drv_data->priv->ndev,
+ nci_hdr.plen + NCI_CTRL_HDR_SIZE, GFP_KERNEL);
+ if (!*skb)
+ return -ENOMEM;
+
+ /* Copy NCI header into the SKB */
+ memcpy(skb_put(*skb, NCI_CTRL_HDR_SIZE), &nci_hdr, NCI_CTRL_HDR_SIZE);
+
+ if (nci_hdr.plen) {
+ /* Read the NCI payload */
+ ret = i2c_master_recv(drv_data->i2c,
+ skb_put(*skb, nci_hdr.plen),
+ nci_hdr.plen);
+
+ if (ret != nci_hdr.plen) {
+ nfc_err(&drv_data->i2c->dev,
+ "Invalid frame payload length: %u (expected %u)\n",
+ ret, nci_hdr.plen);
+ kfree_skb(*skb);
+ return -EBADMSG;
+ }
+ }
+
+ return 0;
+}
+
+static irqreturn_t nfcmrvl_i2c_int_irq_thread_fn(int irq, void *drv_data_ptr)
+{
+ struct nfcmrvl_i2c_drv_data *drv_data = drv_data_ptr;
+ struct sk_buff *skb = NULL;
+ int ret;
+
+ if (!drv_data->priv)
+ return IRQ_HANDLED;
+
+ if (test_bit(NFCMRVL_PHY_ERROR, &drv_data->priv->flags))
+ return IRQ_HANDLED;
+
+ ret = nfcmrvl_i2c_read(drv_data, &skb);
+
+ switch (ret) {
+ case -EREMOTEIO:
+ set_bit(NFCMRVL_PHY_ERROR, &drv_data->priv->flags);
+ break;
+ case -ENOMEM:
+ case -EBADMSG:
+ nfc_err(&drv_data->i2c->dev, "read failed %d\n", ret);
+ break;
+ default:
+ if (nfcmrvl_nci_recv_frame(drv_data->priv, skb) < 0)
+ nfc_err(&drv_data->i2c->dev, "corrupted RX packet\n");
+ break;
+ }
+ return IRQ_HANDLED;
+}
+
+static int nfcmrvl_i2c_nci_open(struct nfcmrvl_private *priv)
+{
+ struct nfcmrvl_i2c_drv_data *drv_data = priv->drv_data;
+
+ if (!drv_data)
+ return -ENODEV;
+
+ return 0;
+}
+
+static int nfcmrvl_i2c_nci_close(struct nfcmrvl_private *priv)
+{
+ return 0;
+}
+
+static int nfcmrvl_i2c_nci_send(struct nfcmrvl_private *priv,
+ struct sk_buff *skb)
+{
+ struct nfcmrvl_i2c_drv_data *drv_data = priv->drv_data;
+ int ret;
+
+ if (test_bit(NFCMRVL_PHY_ERROR, &priv->flags))
+ return -EREMOTEIO;
+
+ ret = i2c_master_send(drv_data->i2c, skb->data, skb->len);
+
+ /* Retry if chip was in standby */
+ if (ret == -EREMOTEIO) {
+ nfc_info(drv_data->dev, "chip may sleep, retry\n");
+ usleep_range(6000, 10000);
+ ret = i2c_master_send(drv_data->i2c, skb->data, skb->len);
+ }
+
+ if (ret >= 0) {
+ if (ret != skb->len) {
+ nfc_err(drv_data->dev,
+ "Invalid length sent: %u (expected %u)\n",
+ ret, skb->len);
+ ret = -EREMOTEIO;
+ } else
+ ret = 0;
+ kfree_skb(skb);
+ }
+
+ return ret;
+}
+
+static void nfcmrvl_i2c_nci_update_config(struct nfcmrvl_private *priv,
+ const void *param)
+{
+}
+
+static struct nfcmrvl_if_ops i2c_ops = {
+ .nci_open = nfcmrvl_i2c_nci_open,
+ .nci_close = nfcmrvl_i2c_nci_close,
+ .nci_send = nfcmrvl_i2c_nci_send,
+ .nci_update_config = nfcmrvl_i2c_nci_update_config,
+};
+
+static int nfcmrvl_i2c_parse_dt(struct device_node *node,
+ struct nfcmrvl_platform_data *pdata)
+{
+ int ret;
+
+ ret = nfcmrvl_parse_dt(node, pdata);
+ if (ret < 0) {
+ pr_err("Failed to get generic entries\n");
+ return ret;
+ }
+
+ if (of_find_property(node, "i2c-int-falling", NULL))
+ pdata->irq_polarity = IRQF_TRIGGER_FALLING;
+ else
+ pdata->irq_polarity = IRQF_TRIGGER_RISING;
+
+ ret = irq_of_parse_and_map(node, 0);
+ if (ret < 0) {
+ pr_err("Unable to get irq, error: %d\n", ret);
+ return ret;
+ }
+ pdata->irq = ret;
+
+ return 0;
+}
+
+static int nfcmrvl_i2c_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct nfcmrvl_i2c_drv_data *drv_data;
+ struct nfcmrvl_platform_data *pdata;
+ struct nfcmrvl_platform_data config;
+ int ret;
+
+ if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+ nfc_err(&client->dev, "Need I2C_FUNC_I2C\n");
+ return -ENODEV;
+ }
+
+ drv_data = devm_kzalloc(&client->dev, sizeof(*drv_data), GFP_KERNEL);
+ if (!drv_data)
+ return -ENOMEM;
+
+ drv_data->i2c = client;
+ drv_data->dev = &client->dev;
+ drv_data->priv = NULL;
+
+ i2c_set_clientdata(client, drv_data);
+
+ pdata = client->dev.platform_data;
+
+ if (!pdata && client->dev.of_node)
+ if (nfcmrvl_i2c_parse_dt(client->dev.of_node, &config) == 0)
+ pdata = &config;
+
+ if (!pdata)
+ return -EINVAL;
+
+ /* Request the read IRQ */
+ ret = devm_request_threaded_irq(&drv_data->i2c->dev, pdata->irq,
+ NULL, nfcmrvl_i2c_int_irq_thread_fn,
+ pdata->irq_polarity | IRQF_ONESHOT,
+ "nfcmrvl_i2c_int", drv_data);
+ if (ret < 0) {
+ nfc_err(&drv_data->i2c->dev,
+ "Unable to register IRQ handler\n");
+ return ret;
+ }
+
+ drv_data->priv = nfcmrvl_nci_register_dev(NFCMRVL_PHY_I2C,
+ drv_data, &i2c_ops,
+ &drv_data->i2c->dev, pdata);
+
+ if (IS_ERR(drv_data->priv))
+ return PTR_ERR(drv_data->priv);
+
+ drv_data->priv->support_fw_dnld = true;
+
+ return 0;
+}
+
+static int nfcmrvl_i2c_remove(struct i2c_client *client)
+{
+ struct nfcmrvl_i2c_drv_data *drv_data = i2c_get_clientdata(client);
+
+ nfcmrvl_nci_unregister_dev(drv_data->priv);
+
+ return 0;
+}
+
+
+static const struct of_device_id of_nfcmrvl_i2c_match[] = {
+ { .compatible = "marvell,nfc-i2c", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, of_nfcmrvl_i2c_match);
+
+static struct i2c_device_id nfcmrvl_i2c_id_table[] = {
+ { "nfcmrvl_i2c", 0 },
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, nfcmrvl_i2c_id_table);
+
+static struct i2c_driver nfcmrvl_i2c_driver = {
+ .probe = nfcmrvl_i2c_probe,
+ .id_table = nfcmrvl_i2c_id_table,
+ .remove = nfcmrvl_i2c_remove,
+ .driver = {
+ .name = "nfcmrvl_i2c",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(of_nfcmrvl_i2c_match),
+ },
+};
+
+module_i2c_driver(nfcmrvl_i2c_driver);
+
+MODULE_AUTHOR("Marvell International Ltd.");
+MODULE_DESCRIPTION("Marvell NFC-over-I2C driver");
+MODULE_LICENSE("GPL v2");
diff --git a/kernel/drivers/nfc/nfcmrvl/main.c b/kernel/drivers/nfc/nfcmrvl/main.c
index ad4933cef..51c8240a1 100644
--- a/kernel/drivers/nfc/nfcmrvl/main.c
+++ b/kernel/drivers/nfc/nfcmrvl/main.c
@@ -1,7 +1,7 @@
/*
* Marvell NFC driver: major functions
*
- * Copyright (C) 2014, Marvell International Ltd.
+ * Copyright (C) 2014-2015 Marvell International Ltd.
*
* This software file (the "File") is distributed by Marvell International
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
@@ -17,13 +17,14 @@
*/
#include <linux/module.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/of_gpio.h>
#include <linux/nfc.h>
#include <net/nfc/nci.h>
#include <net/nfc/nci_core.h>
#include "nfcmrvl.h"
-#define VERSION "1.0"
-
static int nfcmrvl_nci_open(struct nci_dev *ndev)
{
struct nfcmrvl_private *priv = nci_get_drvdata(ndev);
@@ -32,6 +33,9 @@ static int nfcmrvl_nci_open(struct nci_dev *ndev)
if (test_and_set_bit(NFCMRVL_NCI_RUNNING, &priv->flags))
return 0;
+ /* Reset possible fault of previous session */
+ clear_bit(NFCMRVL_PHY_ERROR, &priv->flags);
+
err = priv->if_ops->nci_open(priv);
if (err)
@@ -60,39 +64,52 @@ static int nfcmrvl_nci_send(struct nci_dev *ndev, struct sk_buff *skb)
skb->dev = (void *)ndev;
- if (!test_bit(NFCMRVL_NCI_RUNNING, &priv->flags))
- return -EBUSY;
+ if (priv->config.hci_muxed) {
+ unsigned char *hdr;
+ unsigned char len = skb->len;
+
+ hdr = (char *) skb_push(skb, NFCMRVL_HCI_EVENT_HEADER_SIZE);
+ hdr[0] = NFCMRVL_HCI_COMMAND_CODE;
+ hdr[1] = NFCMRVL_HCI_OGF;
+ hdr[2] = NFCMRVL_HCI_OCF;
+ hdr[3] = len;
+ }
return priv->if_ops->nci_send(priv, skb);
}
static int nfcmrvl_nci_setup(struct nci_dev *ndev)
{
- __u8 val;
-
- val = NFCMRVL_GPIO_PIN_NFC_NOT_ALLOWED;
- nci_set_config(ndev, NFCMRVL_NOT_ALLOWED_ID, 1, &val);
- val = NFCMRVL_GPIO_PIN_NFC_ACTIVE;
- nci_set_config(ndev, NFCMRVL_ACTIVE_ID, 1, &val);
- val = NFCMRVL_EXT_COEX_ENABLE;
- nci_set_config(ndev, NFCMRVL_EXT_COEX_ID, 1, &val);
+ __u8 val = 1;
+ nci_set_config(ndev, NFCMRVL_PB_BAIL_OUT, 1, &val);
return 0;
}
+static int nfcmrvl_nci_fw_download(struct nci_dev *ndev,
+ const char *firmware_name)
+{
+ return nfcmrvl_fw_dnld_start(ndev, firmware_name);
+}
+
static struct nci_ops nfcmrvl_nci_ops = {
.open = nfcmrvl_nci_open,
.close = nfcmrvl_nci_close,
.send = nfcmrvl_nci_send,
.setup = nfcmrvl_nci_setup,
+ .fw_download = nfcmrvl_nci_fw_download,
};
-struct nfcmrvl_private *nfcmrvl_nci_register_dev(void *drv_data,
- struct nfcmrvl_if_ops *ops,
- struct device *dev)
+struct nfcmrvl_private *nfcmrvl_nci_register_dev(enum nfcmrvl_phy phy,
+ void *drv_data,
+ struct nfcmrvl_if_ops *ops,
+ struct device *dev,
+ struct nfcmrvl_platform_data *pdata)
{
struct nfcmrvl_private *priv;
int rc;
+ int headroom;
+ int tailroom;
u32 protocols;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
@@ -102,14 +119,38 @@ struct nfcmrvl_private *nfcmrvl_nci_register_dev(void *drv_data,
priv->drv_data = drv_data;
priv->if_ops = ops;
priv->dev = dev;
+ priv->phy = phy;
+
+ memcpy(&priv->config, pdata, sizeof(*pdata));
+
+ if (priv->config.reset_n_io) {
+ rc = devm_gpio_request_one(dev,
+ priv->config.reset_n_io,
+ GPIOF_OUT_INIT_LOW,
+ "nfcmrvl_reset_n");
+ if (rc < 0)
+ nfc_err(dev, "failed to request reset_n io\n");
+ }
+
+ if (phy == NFCMRVL_PHY_SPI) {
+ headroom = NCI_SPI_HDR_LEN;
+ tailroom = 1;
+ } else
+ headroom = tailroom = 0;
+
+ if (priv->config.hci_muxed)
+ headroom += NFCMRVL_HCI_EVENT_HEADER_SIZE;
protocols = NFC_PROTO_JEWEL_MASK
- | NFC_PROTO_MIFARE_MASK | NFC_PROTO_FELICA_MASK
+ | NFC_PROTO_MIFARE_MASK
+ | NFC_PROTO_FELICA_MASK
| NFC_PROTO_ISO14443_MASK
| NFC_PROTO_ISO14443_B_MASK
+ | NFC_PROTO_ISO15693_MASK
| NFC_PROTO_NFC_DEP_MASK;
- priv->ndev = nci_allocate_device(&nfcmrvl_nci_ops, protocols, 0, 0);
+ priv->ndev = nci_allocate_device(&nfcmrvl_nci_ops, protocols,
+ headroom, tailroom);
if (!priv->ndev) {
nfc_err(dev, "nci_allocate_device failed\n");
rc = -ENOMEM;
@@ -121,13 +162,23 @@ struct nfcmrvl_private *nfcmrvl_nci_register_dev(void *drv_data,
rc = nci_register_device(priv->ndev);
if (rc) {
nfc_err(dev, "nci_register_device failed %d\n", rc);
- nci_free_device(priv->ndev);
- goto error;
+ goto error_free_dev;
+ }
+
+ /* Ensure that controller is powered off */
+ nfcmrvl_chip_halt(priv);
+
+ rc = nfcmrvl_fw_dnld_init(priv);
+ if (rc) {
+ nfc_err(dev, "failed to initialize FW download %d\n", rc);
+ goto error_free_dev;
}
nfc_info(dev, "registered with nci successfully\n");
return priv;
+error_free_dev:
+ nci_free_device(priv->ndev);
error:
kfree(priv);
return ERR_PTR(rc);
@@ -138,28 +189,95 @@ void nfcmrvl_nci_unregister_dev(struct nfcmrvl_private *priv)
{
struct nci_dev *ndev = priv->ndev;
+ if (priv->ndev->nfc_dev->fw_download_in_progress)
+ nfcmrvl_fw_dnld_abort(priv);
+
+ nfcmrvl_fw_dnld_deinit(priv);
+
+ if (priv->config.reset_n_io)
+ devm_gpio_free(priv->dev, priv->config.reset_n_io);
+
nci_unregister_device(ndev);
nci_free_device(ndev);
kfree(priv);
}
EXPORT_SYMBOL_GPL(nfcmrvl_nci_unregister_dev);
-int nfcmrvl_nci_recv_frame(struct nfcmrvl_private *priv, void *data, int count)
+int nfcmrvl_nci_recv_frame(struct nfcmrvl_private *priv, struct sk_buff *skb)
{
- struct sk_buff *skb;
+ if (priv->config.hci_muxed) {
+ if (skb->data[0] == NFCMRVL_HCI_EVENT_CODE &&
+ skb->data[1] == NFCMRVL_HCI_NFC_EVENT_CODE) {
+ /* Data packet, let's extract NCI payload */
+ skb_pull(skb, NFCMRVL_HCI_EVENT_HEADER_SIZE);
+ } else {
+ /* Skip this packet */
+ kfree_skb(skb);
+ return 0;
+ }
+ }
- skb = nci_skb_alloc(priv->ndev, count, GFP_ATOMIC);
- if (!skb)
- return -ENOMEM;
+ if (priv->ndev->nfc_dev->fw_download_in_progress) {
+ nfcmrvl_fw_dnld_recv_frame(priv, skb);
+ return 0;
+ }
- memcpy(skb_put(skb, count), data, count);
- nci_recv_frame(priv->ndev, skb);
+ if (test_bit(NFCMRVL_NCI_RUNNING, &priv->flags))
+ nci_recv_frame(priv->ndev, skb);
+ else {
+ /* Drop this packet since nobody wants it */
+ kfree_skb(skb);
+ return 0;
+ }
- return count;
+ return 0;
}
EXPORT_SYMBOL_GPL(nfcmrvl_nci_recv_frame);
+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) {
+ nfc_info(priv->dev, "reset the chip\n");
+ gpio_set_value(priv->config.reset_n_io, 0);
+ usleep_range(5000, 10000);
+ gpio_set_value(priv->config.reset_n_io, 1);
+ } else
+ nfc_info(priv->dev, "no reset available on this interface\n");
+}
+
+void nfcmrvl_chip_halt(struct nfcmrvl_private *priv)
+{
+ if (priv->config.reset_n_io)
+ gpio_set_value(priv->config.reset_n_io, 0);
+}
+
+int nfcmrvl_parse_dt(struct device_node *node,
+ struct nfcmrvl_platform_data *pdata)
+{
+ int reset_n_io;
+
+ reset_n_io = of_get_named_gpio(node, "reset-n-io", 0);
+ if (reset_n_io < 0) {
+ pr_info("no reset-n-io config\n");
+ reset_n_io = 0;
+ } else if (!gpio_is_valid(reset_n_io)) {
+ pr_err("invalid reset-n-io GPIO\n");
+ return reset_n_io;
+ }
+ pdata->reset_n_io = reset_n_io;
+
+ if (of_find_property(node, "hci-muxed", NULL))
+ pdata->hci_muxed = 1;
+ else
+ pdata->hci_muxed = 0;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(nfcmrvl_parse_dt);
+
MODULE_AUTHOR("Marvell International Ltd.");
-MODULE_DESCRIPTION("Marvell NFC driver ver " VERSION);
-MODULE_VERSION(VERSION);
+MODULE_DESCRIPTION("Marvell NFC driver");
MODULE_LICENSE("GPL v2");
diff --git a/kernel/drivers/nfc/nfcmrvl/nfcmrvl.h b/kernel/drivers/nfc/nfcmrvl/nfcmrvl.h
index 54c4a956b..de68ff45e 100644
--- a/kernel/drivers/nfc/nfcmrvl/nfcmrvl.h
+++ b/kernel/drivers/nfc/nfcmrvl/nfcmrvl.h
@@ -1,7 +1,7 @@
/**
* Marvell NFC driver
*
- * Copyright (C) 2014, Marvell International Ltd.
+ * Copyright (C) 2014-2015, Marvell International Ltd.
*
* This software file (the "File") is distributed by Marvell International
* Ltd. under the terms of the GNU General Public License Version 2, June 1991
@@ -16,8 +16,16 @@
* this warranty disclaimer.
**/
+#ifndef _NFCMRVL_H_
+#define _NFCMRVL_H_
+
+#include <linux/platform_data/nfcmrvl.h>
+
+#include "fw_dnld.h"
+
/* Define private flags: */
#define NFCMRVL_NCI_RUNNING 1
+#define NFCMRVL_PHY_ERROR 2
#define NFCMRVL_EXT_COEX_ID 0xE0
#define NFCMRVL_NOT_ALLOWED_ID 0xE1
@@ -27,11 +35,59 @@
#define NFCMRVL_GPIO_PIN_NFC_ACTIVE 0xB
#define NFCMRVL_NCI_MAX_EVENT_SIZE 260
+/*
+** NCI FW Parmaters
+*/
+
+#define NFCMRVL_PB_BAIL_OUT 0x11
+#define NFCMRVL_PROP_REF_CLOCK 0xF0
+#define NFCMRVL_PROP_SET_HI_CONFIG 0xF1
+
+/*
+** HCI defines
+*/
+
+#define NFCMRVL_HCI_EVENT_HEADER_SIZE 0x04
+#define NFCMRVL_HCI_EVENT_CODE 0x04
+#define NFCMRVL_HCI_NFC_EVENT_CODE 0xFF
+#define NFCMRVL_HCI_COMMAND_CODE 0x01
+#define NFCMRVL_HCI_OGF 0x81
+#define NFCMRVL_HCI_OCF 0xFE
+
+enum nfcmrvl_phy {
+ NFCMRVL_PHY_USB = 0,
+ NFCMRVL_PHY_UART = 1,
+ NFCMRVL_PHY_I2C = 2,
+ NFCMRVL_PHY_SPI = 3,
+};
+
struct nfcmrvl_private {
- struct nci_dev *ndev;
+
unsigned long flags;
+
+ /* Platform configuration */
+ struct nfcmrvl_platform_data config;
+
+ /* Parent dev */
+ struct nci_dev *ndev;
+
+ /* FW download context */
+ struct nfcmrvl_fw_dnld fw_dnld;
+
+ /* FW download support */
+ bool support_fw_dnld;
+
+ /*
+ ** PHY related information
+ */
+
+ /* PHY driver context */
void *drv_data;
+ /* PHY device */
struct device *dev;
+ /* PHY type */
+ enum nfcmrvl_phy phy;
+ /* Low level driver ops */
struct nfcmrvl_if_ops *if_ops;
};
@@ -39,10 +95,23 @@ struct nfcmrvl_if_ops {
int (*nci_open) (struct nfcmrvl_private *priv);
int (*nci_close) (struct nfcmrvl_private *priv);
int (*nci_send) (struct nfcmrvl_private *priv, struct sk_buff *skb);
+ void (*nci_update_config)(struct nfcmrvl_private *priv,
+ const void *param);
};
void nfcmrvl_nci_unregister_dev(struct nfcmrvl_private *priv);
-int nfcmrvl_nci_recv_frame(struct nfcmrvl_private *priv, void *data, int count);
-struct nfcmrvl_private *nfcmrvl_nci_register_dev(void *drv_data,
- struct nfcmrvl_if_ops *ops,
- struct device *dev);
+int nfcmrvl_nci_recv_frame(struct nfcmrvl_private *priv, struct sk_buff *skb);
+struct nfcmrvl_private *nfcmrvl_nci_register_dev(enum nfcmrvl_phy phy,
+ void *drv_data,
+ struct nfcmrvl_if_ops *ops,
+ struct device *dev,
+ struct nfcmrvl_platform_data *pdata);
+
+
+void nfcmrvl_chip_reset(struct nfcmrvl_private *priv);
+void nfcmrvl_chip_halt(struct nfcmrvl_private *priv);
+
+int nfcmrvl_parse_dt(struct device_node *node,
+ struct nfcmrvl_platform_data *pdata);
+
+#endif
diff --git a/kernel/drivers/nfc/nfcmrvl/spi.c b/kernel/drivers/nfc/nfcmrvl/spi.c
new file mode 100644
index 000000000..a7faa0bcc
--- /dev/null
+++ b/kernel/drivers/nfc/nfcmrvl/spi.c
@@ -0,0 +1,228 @@
+/**
+ * Marvell NFC-over-SPI driver: SPI interface related functions
+ *
+ * Copyright (C) 2015, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License"). You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available on the worldwide web at
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
+ * this warranty disclaimer.
+ **/
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/pm_runtime.h>
+#include <linux/nfc.h>
+#include <linux/gpio.h>
+#include <linux/of_irq.h>
+#include <linux/of_gpio.h>
+#include <net/nfc/nci.h>
+#include <net/nfc/nci_core.h>
+#include <linux/spi/spi.h>
+#include <linux/gpio.h>
+#include "nfcmrvl.h"
+
+#define SPI_WAIT_HANDSHAKE 1
+
+struct nfcmrvl_spi_drv_data {
+ unsigned long flags;
+ struct spi_device *spi;
+ struct nci_spi *nci_spi;
+ struct completion handshake_completion;
+ struct nfcmrvl_private *priv;
+};
+
+static irqreturn_t nfcmrvl_spi_int_irq_thread_fn(int irq, void *drv_data_ptr)
+{
+ struct nfcmrvl_spi_drv_data *drv_data = drv_data_ptr;
+ struct sk_buff *skb;
+
+ /*
+ * Special case where we are waiting for SPI_INT deassertion to start a
+ * transfer.
+ */
+ if (test_and_clear_bit(SPI_WAIT_HANDSHAKE, &drv_data->flags)) {
+ complete(&drv_data->handshake_completion);
+ return IRQ_HANDLED;
+ }
+
+ /* Normal case, SPI_INT deasserted by slave to trigger a master read */
+
+ skb = nci_spi_read(drv_data->nci_spi);
+ if (!skb) {
+ nfc_err(&drv_data->spi->dev, "failed to read spi packet");
+ return IRQ_HANDLED;
+ }
+
+ if (nfcmrvl_nci_recv_frame(drv_data->priv, skb) < 0)
+ nfc_err(&drv_data->spi->dev, "corrupted RX packet");
+
+ return IRQ_HANDLED;
+}
+
+static int nfcmrvl_spi_nci_open(struct nfcmrvl_private *priv)
+{
+ return 0;
+}
+
+static int nfcmrvl_spi_nci_close(struct nfcmrvl_private *priv)
+{
+ return 0;
+}
+
+static int nfcmrvl_spi_nci_send(struct nfcmrvl_private *priv,
+ struct sk_buff *skb)
+{
+ struct nfcmrvl_spi_drv_data *drv_data = priv->drv_data;
+ int err;
+
+ /* Reinit completion for slave handshake */
+ reinit_completion(&drv_data->handshake_completion);
+ set_bit(SPI_WAIT_HANDSHAKE, &drv_data->flags);
+
+ /*
+ * Append a dummy byte at the end of SPI frame. This is due to a
+ * specific DMA implementation in the controller
+ */
+ skb_put(skb, 1);
+
+ /* Send the SPI packet */
+ err = nci_spi_send(drv_data->nci_spi, &drv_data->handshake_completion,
+ skb);
+ if (err != 0) {
+ nfc_err(priv->dev, "spi_send failed %d", err);
+ kfree_skb(skb);
+ }
+ return err;
+}
+
+static void nfcmrvl_spi_nci_update_config(struct nfcmrvl_private *priv,
+ const void *param)
+{
+ struct nfcmrvl_spi_drv_data *drv_data = priv->drv_data;
+ const struct nfcmrvl_fw_spi_config *config = param;
+
+ drv_data->nci_spi->xfer_speed_hz = config->clk;
+}
+
+static struct nfcmrvl_if_ops spi_ops = {
+ .nci_open = nfcmrvl_spi_nci_open,
+ .nci_close = nfcmrvl_spi_nci_close,
+ .nci_send = nfcmrvl_spi_nci_send,
+ .nci_update_config = nfcmrvl_spi_nci_update_config,
+};
+
+static int nfcmrvl_spi_parse_dt(struct device_node *node,
+ struct nfcmrvl_platform_data *pdata)
+{
+ int ret;
+
+ ret = nfcmrvl_parse_dt(node, pdata);
+ if (ret < 0) {
+ pr_err("Failed to get generic entries\n");
+ return ret;
+ }
+
+ ret = irq_of_parse_and_map(node, 0);
+ if (ret < 0) {
+ pr_err("Unable to get irq, error: %d\n", ret);
+ return ret;
+ }
+ pdata->irq = ret;
+
+ return 0;
+}
+
+static int nfcmrvl_spi_probe(struct spi_device *spi)
+{
+ struct nfcmrvl_platform_data *pdata;
+ struct nfcmrvl_platform_data config;
+ struct nfcmrvl_spi_drv_data *drv_data;
+ int ret = 0;
+
+ drv_data = devm_kzalloc(&spi->dev, sizeof(*drv_data), GFP_KERNEL);
+ if (!drv_data)
+ return -ENOMEM;
+
+ drv_data->spi = spi;
+ drv_data->priv = NULL;
+ spi_set_drvdata(spi, drv_data);
+
+ pdata = spi->dev.platform_data;
+
+ if (!pdata && spi->dev.of_node)
+ if (nfcmrvl_spi_parse_dt(spi->dev.of_node, &config) == 0)
+ pdata = &config;
+
+ if (!pdata)
+ return -EINVAL;
+
+ ret = devm_request_threaded_irq(&drv_data->spi->dev, pdata->irq,
+ NULL, nfcmrvl_spi_int_irq_thread_fn,
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ "nfcmrvl_spi_int", drv_data);
+ if (ret < 0) {
+ nfc_err(&drv_data->spi->dev, "Unable to register IRQ handler");
+ return -ENODEV;
+ }
+
+ drv_data->priv = nfcmrvl_nci_register_dev(NFCMRVL_PHY_SPI,
+ drv_data, &spi_ops,
+ &drv_data->spi->dev,
+ pdata);
+ if (IS_ERR(drv_data->priv))
+ return PTR_ERR(drv_data->priv);
+
+ drv_data->priv->support_fw_dnld = true;
+
+ drv_data->nci_spi = nci_spi_allocate_spi(drv_data->spi, 0, 10,
+ drv_data->priv->ndev);
+
+ /* Init completion for slave handshake */
+ init_completion(&drv_data->handshake_completion);
+ return 0;
+}
+
+static int nfcmrvl_spi_remove(struct spi_device *spi)
+{
+ struct nfcmrvl_spi_drv_data *drv_data = spi_get_drvdata(spi);
+
+ nfcmrvl_nci_unregister_dev(drv_data->priv);
+ return 0;
+}
+
+static const struct of_device_id of_nfcmrvl_spi_match[] = {
+ { .compatible = "marvell,nfc-spi", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, of_nfcmrvl_spi_match);
+
+static const struct spi_device_id nfcmrvl_spi_id_table[] = {
+ { "nfcmrvl_spi", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(spi, nfcmrvl_spi_id_table);
+
+static struct spi_driver nfcmrvl_spi_driver = {
+ .probe = nfcmrvl_spi_probe,
+ .remove = nfcmrvl_spi_remove,
+ .id_table = nfcmrvl_spi_id_table,
+ .driver = {
+ .name = "nfcmrvl_spi",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(of_nfcmrvl_spi_match),
+ },
+};
+
+module_spi_driver(nfcmrvl_spi_driver);
+
+MODULE_AUTHOR("Marvell International Ltd.");
+MODULE_DESCRIPTION("Marvell NFC-over-SPI driver");
+MODULE_LICENSE("GPL v2");
diff --git a/kernel/drivers/nfc/nfcmrvl/uart.c b/kernel/drivers/nfc/nfcmrvl/uart.c
new file mode 100644
index 000000000..83a99e38e
--- /dev/null
+++ b/kernel/drivers/nfc/nfcmrvl/uart.c
@@ -0,0 +1,233 @@
+/**
+ * Marvell NFC-over-UART driver
+ *
+ * Copyright (C) 2015, Marvell International Ltd.
+ *
+ * This software file (the "File") is distributed by Marvell International
+ * Ltd. under the terms of the GNU General Public License Version 2, June 1991
+ * (the "License"). You may use, redistribute and/or modify this File in
+ * accordance with the terms and conditions of the License, a copy of which
+ * is available on the worldwide web at
+ * http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *
+ * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
+ * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
+ * this warranty disclaimer.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/of_gpio.h>
+#include <net/nfc/nci.h>
+#include <net/nfc/nci_core.h>
+#include "nfcmrvl.h"
+
+static unsigned int hci_muxed;
+static unsigned int flow_control;
+static unsigned int break_control;
+static unsigned int reset_n_io;
+
+/*
+** NFCMRVL NCI OPS
+*/
+
+static int nfcmrvl_uart_nci_open(struct nfcmrvl_private *priv)
+{
+ return 0;
+}
+
+static int nfcmrvl_uart_nci_close(struct nfcmrvl_private *priv)
+{
+ return 0;
+}
+
+static int nfcmrvl_uart_nci_send(struct nfcmrvl_private *priv,
+ struct sk_buff *skb)
+{
+ struct nci_uart *nu = priv->drv_data;
+
+ return nu->ops.send(nu, skb);
+}
+
+static void nfcmrvl_uart_nci_update_config(struct nfcmrvl_private *priv,
+ const void *param)
+{
+ struct nci_uart *nu = priv->drv_data;
+ const struct nfcmrvl_fw_uart_config *config = param;
+
+ nci_uart_set_config(nu, le32_to_cpu(config->baudrate),
+ config->flow_control);
+}
+
+static struct nfcmrvl_if_ops uart_ops = {
+ .nci_open = nfcmrvl_uart_nci_open,
+ .nci_close = nfcmrvl_uart_nci_close,
+ .nci_send = nfcmrvl_uart_nci_send,
+ .nci_update_config = nfcmrvl_uart_nci_update_config
+};
+
+static int nfcmrvl_uart_parse_dt(struct device_node *node,
+ struct nfcmrvl_platform_data *pdata)
+{
+ struct device_node *matched_node;
+ int ret;
+
+ matched_node = of_find_compatible_node(node, NULL, "marvell,nfc-uart");
+ if (!matched_node) {
+ matched_node = of_find_compatible_node(node, NULL,
+ "mrvl,nfc-uart");
+ if (!matched_node)
+ return -ENODEV;
+ }
+
+ ret = nfcmrvl_parse_dt(matched_node, pdata);
+ if (ret < 0) {
+ pr_err("Failed to get generic entries\n");
+ return ret;
+ }
+
+ if (of_find_property(matched_node, "flow-control", NULL))
+ pdata->flow_control = 1;
+ else
+ pdata->flow_control = 0;
+
+ if (of_find_property(matched_node, "break-control", NULL))
+ pdata->break_control = 1;
+ else
+ pdata->break_control = 0;
+
+ return 0;
+}
+
+/*
+** NCI UART OPS
+*/
+
+static int nfcmrvl_nci_uart_open(struct nci_uart *nu)
+{
+ struct nfcmrvl_private *priv;
+ struct nfcmrvl_platform_data *pdata = NULL;
+ struct nfcmrvl_platform_data config;
+
+ /*
+ * Platform data cannot be used here since usually it is already used
+ * by low level serial driver. We can try to retrieve serial device
+ * and check if DT entries were added.
+ */
+
+ if (nu->tty->dev->parent && nu->tty->dev->parent->of_node)
+ if (nfcmrvl_uart_parse_dt(nu->tty->dev->parent->of_node,
+ &config) == 0)
+ pdata = &config;
+
+ if (!pdata) {
+ pr_info("No platform data / DT -> fallback to module params\n");
+ config.hci_muxed = hci_muxed;
+ config.reset_n_io = reset_n_io;
+ config.flow_control = flow_control;
+ config.break_control = break_control;
+ pdata = &config;
+ }
+
+ priv = nfcmrvl_nci_register_dev(NFCMRVL_PHY_UART, nu, &uart_ops,
+ nu->tty->dev, pdata);
+ if (IS_ERR(priv))
+ return PTR_ERR(priv);
+
+ priv->support_fw_dnld = true;
+
+ nu->drv_data = priv;
+ nu->ndev = priv->ndev;
+
+ return 0;
+}
+
+static void nfcmrvl_nci_uart_close(struct nci_uart *nu)
+{
+ nfcmrvl_nci_unregister_dev((struct nfcmrvl_private *)nu->drv_data);
+}
+
+static int nfcmrvl_nci_uart_recv(struct nci_uart *nu, struct sk_buff *skb)
+{
+ return nfcmrvl_nci_recv_frame((struct nfcmrvl_private *)nu->drv_data,
+ skb);
+}
+
+static void nfcmrvl_nci_uart_tx_start(struct nci_uart *nu)
+{
+ struct nfcmrvl_private *priv = (struct nfcmrvl_private *)nu->drv_data;
+
+ if (priv->ndev->nfc_dev->fw_download_in_progress)
+ return;
+
+ /* Remove BREAK to wake up the NFCC */
+ if (priv->config.break_control && nu->tty->ops->break_ctl) {
+ nu->tty->ops->break_ctl(nu->tty, 0);
+ usleep_range(3000, 5000);
+ }
+}
+
+static void nfcmrvl_nci_uart_tx_done(struct nci_uart *nu)
+{
+ struct nfcmrvl_private *priv = (struct nfcmrvl_private *)nu->drv_data;
+
+ if (priv->ndev->nfc_dev->fw_download_in_progress)
+ return;
+
+ /*
+ ** To ensure that if the NFCC goes in DEEP SLEEP sate we can wake him
+ ** up. we set BREAK. Once we will be ready to send again we will remove
+ ** it.
+ */
+ if (priv->config.break_control && nu->tty->ops->break_ctl) {
+ nu->tty->ops->break_ctl(nu->tty, -1);
+ usleep_range(1000, 3000);
+ }
+}
+
+static struct nci_uart nfcmrvl_nci_uart = {
+ .owner = THIS_MODULE,
+ .name = "nfcmrvl_uart",
+ .driver = NCI_UART_DRIVER_MARVELL,
+ .ops = {
+ .open = nfcmrvl_nci_uart_open,
+ .close = nfcmrvl_nci_uart_close,
+ .recv = nfcmrvl_nci_uart_recv,
+ .tx_start = nfcmrvl_nci_uart_tx_start,
+ .tx_done = nfcmrvl_nci_uart_tx_done,
+ }
+};
+
+/*
+** Module init
+*/
+
+static int nfcmrvl_uart_init_module(void)
+{
+ return nci_uart_register(&nfcmrvl_nci_uart);
+}
+
+static void nfcmrvl_uart_exit_module(void)
+{
+ nci_uart_unregister(&nfcmrvl_nci_uart);
+}
+
+module_init(nfcmrvl_uart_init_module);
+module_exit(nfcmrvl_uart_exit_module);
+
+MODULE_AUTHOR("Marvell International Ltd.");
+MODULE_DESCRIPTION("Marvell NFC-over-UART");
+MODULE_LICENSE("GPL v2");
+
+module_param(flow_control, uint, 0);
+MODULE_PARM_DESC(flow_control, "Tell if UART needs flow control at init.");
+
+module_param(break_control, uint, 0);
+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_PARM_DESC(reset_n_io, "GPIO that is wired to RESET_N signal.");
diff --git a/kernel/drivers/nfc/nfcmrvl/usb.c b/kernel/drivers/nfc/nfcmrvl/usb.c
index 6cf15c1a2..585a0f208 100644
--- a/kernel/drivers/nfc/nfcmrvl/usb.c
+++ b/kernel/drivers/nfc/nfcmrvl/usb.c
@@ -23,10 +23,9 @@
#include <net/nfc/nci_core.h>
#include "nfcmrvl.h"
-#define VERSION "1.0"
-
static struct usb_device_id nfcmrvl_table[] = {
- { USB_DEVICE_INTERFACE_CLASS(0x1286, 0x2046, 0xff) },
+ { USB_DEVICE_AND_INTERFACE_INFO(0x1286, 0x2046,
+ USB_CLASS_VENDOR_SPEC, 4, 1) },
{ } /* Terminating entry */
};
@@ -69,18 +68,27 @@ static int nfcmrvl_inc_tx(struct nfcmrvl_usb_drv_data *drv_data)
static void nfcmrvl_bulk_complete(struct urb *urb)
{
struct nfcmrvl_usb_drv_data *drv_data = urb->context;
+ struct sk_buff *skb;
int err;
- dev_dbg(&drv_data->udev->dev, "urb %p status %d count %d",
+ dev_dbg(&drv_data->udev->dev, "urb %p status %d count %d\n",
urb, urb->status, urb->actual_length);
if (!test_bit(NFCMRVL_NCI_RUNNING, &drv_data->flags))
return;
if (!urb->status) {
- if (nfcmrvl_nci_recv_frame(drv_data->priv, urb->transfer_buffer,
- urb->actual_length) < 0)
- nfc_err(&drv_data->udev->dev, "corrupted Rx packet\n");
+ skb = nci_skb_alloc(drv_data->priv->ndev, urb->actual_length,
+ GFP_ATOMIC);
+ if (!skb) {
+ nfc_err(&drv_data->udev->dev, "failed to alloc mem\n");
+ } else {
+ memcpy(skb_put(skb, urb->actual_length),
+ urb->transfer_buffer, urb->actual_length);
+ if (nfcmrvl_nci_recv_frame(drv_data->priv, skb) < 0)
+ nfc_err(&drv_data->udev->dev,
+ "corrupted Rx packet\n");
+ }
}
if (!test_bit(NFCMRVL_USB_BULK_RUNNING, &drv_data->flags))
@@ -292,6 +300,10 @@ static int nfcmrvl_probe(struct usb_interface *intf,
struct nfcmrvl_private *priv;
int i;
struct usb_device *udev = interface_to_usbdev(intf);
+ struct nfcmrvl_platform_data config;
+
+ /* No configuration for USB */
+ memset(&config, 0, sizeof(config));
nfc_info(&udev->dev, "intf %p id %p\n", intf, id);
@@ -328,12 +340,14 @@ static int nfcmrvl_probe(struct usb_interface *intf,
init_usb_anchor(&drv_data->bulk_anchor);
init_usb_anchor(&drv_data->deferred);
- priv = nfcmrvl_nci_register_dev(drv_data, &usb_ops,
- &drv_data->udev->dev);
+ priv = nfcmrvl_nci_register_dev(NFCMRVL_PHY_USB, drv_data, &usb_ops,
+ &drv_data->udev->dev, &config);
if (IS_ERR(priv))
return PTR_ERR(priv);
drv_data->priv = priv;
+ drv_data->priv->support_fw_dnld = false;
+
priv->dev = &drv_data->udev->dev;
usb_set_intfdata(intf, drv_data);
@@ -454,6 +468,5 @@ static struct usb_driver nfcmrvl_usb_driver = {
module_usb_driver(nfcmrvl_usb_driver);
MODULE_AUTHOR("Marvell International Ltd.");
-MODULE_DESCRIPTION("Marvell NFC-over-USB driver ver " VERSION);
-MODULE_VERSION(VERSION);
+MODULE_DESCRIPTION("Marvell NFC-over-USB driver");
MODULE_LICENSE("GPL v2");