F: include/linux/fsverity.h
F: include/uapi/linux/fsverity.h
+FT260 FTDI USB-HID TO I2C BRIDGE DRIVER
+M: Michael Zaidman <michael.zaidman@gmail.com>
+L: linux-i2c@vger.kernel.org
+L: linux-input@vger.kernel.org
+S: Maintained
+F: drivers/hid/hid-ft260.c
+
FUJITSU LAPTOP EXTRAS
M: Jonathan Woithe <jwoithe@just42.net>
L: platform-driver-x86@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git
F: drivers/platform/surface/
+MICROSOFT SURFACE HID TRANSPORT DRIVER
+M: Maximilian Luz <luzmaximilian@gmail.com>
+L: linux-input@vger.kernel.org
+L: platform-driver-x86@vger.kernel.org
+S: Maintained
+F: drivers/hid/surface-hid/
+
MICROSOFT SURFACE HOT-PLUG DRIVER
M: Maximilian Luz <luzmaximilian@gmail.com>
L: platform-driver-x86@vger.kernel.org
help
Support for Ezkey BTC 8193 keyboard.
+config HID_FT260
+ tristate "FTDI FT260 USB HID to I2C host support"
+ depends on USB_HID && HIDRAW && I2C
+ help
+ Provides I2C host adapter functionality over USB-HID through FT260
+ device. The customizable USB descriptor fields are exposed as sysfs
+ attributes.
+
+ To compile this driver as a module, choose M here: the module
+ will be called hid-ft260.
+
config HID_GEMBIRD
tristate "Gembird Joypad"
depends on HID
config HID_THRUSTMASTER
tristate "ThrustMaster devices support"
- depends on HID
+ depends on USB_HID
help
- Say Y here if you have a THRUSTMASTER FireStore Dual Power 2 or
- a THRUSTMASTER Ferrari GT Rumble Wheel.
+ Say Y here if you have a THRUSTMASTER FireStore Dual Power 2,
+ a THRUSTMASTER Ferrari GT Rumble Wheel or Thrustmaster FFB
+ Wheel (T150RS, T300RS, T300 Ferrari Alcantara Edition, T500RS).
config THRUSTMASTER_FF
bool "ThrustMaster devices force feedback support"
source "drivers/hid/amd-sfh-hid/Kconfig"
+source "drivers/hid/surface-hid/Kconfig"
+
endmenu
obj-$(CONFIG_HID_ELECOM) += hid-elecom.o
obj-$(CONFIG_HID_ELO) += hid-elo.o
obj-$(CONFIG_HID_EZKEY) += hid-ezkey.o
+obj-$(CONFIG_HID_FT260) += hid-ft260.o
obj-$(CONFIG_HID_GEMBIRD) += hid-gembird.o
obj-$(CONFIG_HID_GFRM) += hid-gfrm.o
obj-$(CONFIG_HID_GLORIOUS) += hid-glorious.o
obj-$(CONFIG_HID_STEELSERIES) += hid-steelseries.o
obj-$(CONFIG_HID_SUNPLUS) += hid-sunplus.o
obj-$(CONFIG_HID_GREENASIA) += hid-gaff.o
-obj-$(CONFIG_HID_THRUSTMASTER) += hid-tmff.o
+obj-$(CONFIG_HID_THRUSTMASTER) += hid-tmff.o hid-thrustmaster.o
+obj-$(CONFIG_HID_TMINIT) += hid-tminit.o
obj-$(CONFIG_HID_TIVO) += hid-tivo.o
obj-$(CONFIG_HID_TOPSEED) += hid-topseed.o
obj-$(CONFIG_HID_TWINHAN) += hid-twinhan.o
obj-$(INTEL_ISH_FIRMWARE_DOWNLOADER) += intel-ish-hid/
obj-$(CONFIG_AMD_SFH_HID) += amd-sfh-hid/
+
+obj-$(CONFIG_SURFACE_HID_CORE) += surface-hid/
UNKNOWN,
};
/**
- * struct u1_data
+ * struct alps_dev
*
* @input: pointer to the kernel input device
* @input2: pointer to the kernel input2 device
};
/**
- * store_new_id - add a new HID device ID to this driver and re-probe devices
+ * new_id_store - add a new HID device ID to this driver and re-probe devices
* @drv: target device driver
* @buf: buffer for scanning device ID data
* @count: input size
{ 0x85, 0x44, "Charging" },
{ 0x85, 0x45, "Discharging" },
{ 0x85, 0x4b, "NeedReplacement" },
+ { 0x85, 0x65, "AbsoluteStateOfCharge" },
{ 0x85, 0x66, "RemainingCapacity" },
{ 0x85, 0x68, "RunTimeToEmpty" },
{ 0x85, 0x6a, "AverageTimeToFull" },
return 0;
}
-static enum led_brightness elan_mute_led_get_brigtness(struct led_classdev *led_cdev)
-{
- struct device *dev = led_cdev->dev->parent;
- struct hid_device *hdev = to_hid_device(dev);
- struct elan_drvdata *drvdata = hid_get_drvdata(hdev);
-
- return drvdata->mute_led_state;
-}
-
static int elan_mute_led_set_brigtness(struct led_classdev *led_cdev,
enum led_brightness value)
{
kfree(dmabuf);
if (ret != ELAN_LED_REPORT_SIZE) {
- hid_err(hdev, "Failed to set mute led brightness: %d\n", ret);
- return ret;
+ if (ret != -ENODEV)
+ hid_err(hdev, "Failed to set mute led brightness: %d\n", ret);
+ return ret < 0 ? ret : -EIO;
}
drvdata->mute_led_state = led_state;
struct led_classdev *mute_led = &drvdata->mute_led;
mute_led->name = "elan:red:mute";
- mute_led->brightness_get = elan_mute_led_get_brigtness;
+ mute_led->default_trigger = "audio-mute";
mute_led->brightness_set_blocking = elan_mute_led_set_brigtness;
mute_led->max_brightness = LED_ON;
+ mute_led->flags = LED_HW_PLUGGABLE;
mute_led->dev = &hdev->dev;
return devm_led_classdev_register(&hdev->dev, mute_led);
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * hid-ft260.c - FTDI FT260 USB HID to I2C host bridge
+ *
+ * Copyright (c) 2021, Michael Zaidman <michaelz@xsightlabs.com>
+ *
+ * Data Sheet:
+ * https://www.ftdichip.com/Support/Documents/DataSheets/ICs/DS_FT260.pdf
+ */
+
+#include "hid-ids.h"
+#include <linux/hidraw.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+
+#ifdef DEBUG
+static int ft260_debug = 1;
+#else
+static int ft260_debug;
+#endif
+module_param_named(debug, ft260_debug, int, 0600);
+MODULE_PARM_DESC(debug, "Toggle FT260 debugging messages");
+
+#define ft260_dbg(format, arg...) \
+ do { \
+ if (ft260_debug) \
+ pr_info("%s: " format, __func__, ##arg); \
+ } while (0)
+
+#define FT260_REPORT_MAX_LENGTH (64)
+#define FT260_I2C_DATA_REPORT_ID(len) (FT260_I2C_REPORT_MIN + (len - 1) / 4)
+/*
+ * The input report format assigns 62 bytes for the data payload, but ft260
+ * returns 60 and 2 in two separate transactions. To minimize transfer time
+ * in reading chunks mode, set the maximum read payload length to 60 bytes.
+ */
+#define FT260_RD_DATA_MAX (60)
+#define FT260_WR_DATA_MAX (60)
+
+/*
+ * Device interface configuration.
+ * The FT260 has 2 interfaces that are controlled by DCNF0 and DCNF1 pins.
+ * First implementes USB HID to I2C bridge function and
+ * second - USB HID to UART bridge function.
+ */
+enum {
+ FT260_MODE_ALL = 0x00,
+ FT260_MODE_I2C = 0x01,
+ FT260_MODE_UART = 0x02,
+ FT260_MODE_BOTH = 0x03,
+};
+
+/* Control pipe */
+enum {
+ FT260_GET_RQST_TYPE = 0xA1,
+ FT260_GET_REPORT = 0x01,
+ FT260_SET_RQST_TYPE = 0x21,
+ FT260_SET_REPORT = 0x09,
+ FT260_FEATURE = 0x03,
+};
+
+/* Report IDs / Feature In */
+enum {
+ FT260_CHIP_VERSION = 0xA0,
+ FT260_SYSTEM_SETTINGS = 0xA1,
+ FT260_I2C_STATUS = 0xC0,
+ FT260_I2C_READ_REQ = 0xC2,
+ FT260_I2C_REPORT_MIN = 0xD0,
+ FT260_I2C_REPORT_MAX = 0xDE,
+ FT260_GPIO = 0xB0,
+ FT260_UART_INTERRUPT_STATUS = 0xB1,
+ FT260_UART_STATUS = 0xE0,
+ FT260_UART_RI_DCD_STATUS = 0xE1,
+ FT260_UART_REPORT = 0xF0,
+};
+
+/* Feature Out */
+enum {
+ FT260_SET_CLOCK = 0x01,
+ FT260_SET_I2C_MODE = 0x02,
+ FT260_SET_UART_MODE = 0x03,
+ FT260_ENABLE_INTERRUPT = 0x05,
+ FT260_SELECT_GPIO2_FUNC = 0x06,
+ FT260_ENABLE_UART_DCD_RI = 0x07,
+ FT260_SELECT_GPIOA_FUNC = 0x08,
+ FT260_SELECT_GPIOG_FUNC = 0x09,
+ FT260_SET_INTERRUPT_TRIGGER = 0x0A,
+ FT260_SET_SUSPEND_OUT_POLAR = 0x0B,
+ FT260_ENABLE_UART_RI_WAKEUP = 0x0C,
+ FT260_SET_UART_RI_WAKEUP_CFG = 0x0D,
+ FT260_SET_I2C_RESET = 0x20,
+ FT260_SET_I2C_CLOCK_SPEED = 0x22,
+ FT260_SET_UART_RESET = 0x40,
+ FT260_SET_UART_CONFIG = 0x41,
+ FT260_SET_UART_BAUD_RATE = 0x42,
+ FT260_SET_UART_DATA_BIT = 0x43,
+ FT260_SET_UART_PARITY = 0x44,
+ FT260_SET_UART_STOP_BIT = 0x45,
+ FT260_SET_UART_BREAKING = 0x46,
+ FT260_SET_UART_XON_XOFF = 0x49,
+};
+
+/* Response codes in I2C status report */
+enum {
+ FT260_I2C_STATUS_SUCCESS = 0x00,
+ FT260_I2C_STATUS_CTRL_BUSY = 0x01,
+ FT260_I2C_STATUS_ERROR = 0x02,
+ FT260_I2C_STATUS_ADDR_NO_ACK = 0x04,
+ FT260_I2C_STATUS_DATA_NO_ACK = 0x08,
+ FT260_I2C_STATUS_ARBITR_LOST = 0x10,
+ FT260_I2C_STATUS_CTRL_IDLE = 0x20,
+ FT260_I2C_STATUS_BUS_BUSY = 0x40,
+};
+
+/* I2C Conditions flags */
+enum {
+ FT260_FLAG_NONE = 0x00,
+ FT260_FLAG_START = 0x02,
+ FT260_FLAG_START_REPEATED = 0x03,
+ FT260_FLAG_STOP = 0x04,
+ FT260_FLAG_START_STOP = 0x06,
+ FT260_FLAG_START_STOP_REPEATED = 0x07,
+};
+
+#define FT260_SET_REQUEST_VALUE(report_id) ((FT260_FEATURE << 8) | report_id)
+
+/* Feature In reports */
+
+struct ft260_get_chip_version_report {
+ u8 report; /* FT260_CHIP_VERSION */
+ u8 chip_code[4]; /* FTDI chip identification code */
+ u8 reserved[8];
+} __packed;
+
+struct ft260_get_system_status_report {
+ u8 report; /* FT260_SYSTEM_SETTINGS */
+ u8 chip_mode; /* DCNF0 and DCNF1 status, bits 0-1 */
+ u8 clock_ctl; /* 0 - 12MHz, 1 - 24MHz, 2 - 48MHz */
+ u8 suspend_status; /* 0 - not suspended, 1 - suspended */
+ u8 pwren_status; /* 0 - FT260 is not ready, 1 - ready */
+ u8 i2c_enable; /* 0 - disabled, 1 - enabled */
+ u8 uart_mode; /* 0 - OFF; 1 - RTS_CTS, 2 - DTR_DSR, */
+ /* 3 - XON_XOFF, 4 - No flow control */
+ u8 hid_over_i2c_en; /* 0 - disabled, 1 - enabled */
+ u8 gpio2_function; /* 0 - GPIO, 1 - SUSPOUT, */
+ /* 2 - PWREN, 4 - TX_LED */
+ u8 gpioA_function; /* 0 - GPIO, 3 - TX_ACTIVE, 4 - TX_LED */
+ u8 gpioG_function; /* 0 - GPIO, 2 - PWREN, */
+ /* 5 - RX_LED, 6 - BCD_DET */
+ u8 suspend_out_pol; /* 0 - active-high, 1 - active-low */
+ u8 enable_wakeup_int; /* 0 - disabled, 1 - enabled */
+ u8 intr_cond; /* Interrupt trigger conditions */
+ u8 power_saving_en; /* 0 - disabled, 1 - enabled */
+ u8 reserved[10];
+} __packed;
+
+struct ft260_get_i2c_status_report {
+ u8 report; /* FT260_I2C_STATUS */
+ u8 bus_status; /* I2C bus status */
+ __le16 clock; /* I2C bus clock in range 60-3400 KHz */
+ u8 reserved;
+} __packed;
+
+/* Feature Out reports */
+
+struct ft260_set_system_clock_report {
+ u8 report; /* FT260_SYSTEM_SETTINGS */
+ u8 request; /* FT260_SET_CLOCK */
+ u8 clock_ctl; /* 0 - 12MHz, 1 - 24MHz, 2 - 48MHz */
+} __packed;
+
+struct ft260_set_i2c_mode_report {
+ u8 report; /* FT260_SYSTEM_SETTINGS */
+ u8 request; /* FT260_SET_I2C_MODE */
+ u8 i2c_enable; /* 0 - disabled, 1 - enabled */
+} __packed;
+
+struct ft260_set_uart_mode_report {
+ u8 report; /* FT260_SYSTEM_SETTINGS */
+ u8 request; /* FT260_SET_UART_MODE */
+ u8 uart_mode; /* 0 - OFF; 1 - RTS_CTS, 2 - DTR_DSR, */
+ /* 3 - XON_XOFF, 4 - No flow control */
+} __packed;
+
+struct ft260_set_i2c_reset_report {
+ u8 report; /* FT260_SYSTEM_SETTINGS */
+ u8 request; /* FT260_SET_I2C_RESET */
+} __packed;
+
+struct ft260_set_i2c_speed_report {
+ u8 report; /* FT260_SYSTEM_SETTINGS */
+ u8 request; /* FT260_SET_I2C_CLOCK_SPEED */
+ __le16 clock; /* I2C bus clock in range 60-3400 KHz */
+} __packed;
+
+/* Data transfer reports */
+
+struct ft260_i2c_write_request_report {
+ u8 report; /* FT260_I2C_REPORT */
+ u8 address; /* 7-bit I2C address */
+ u8 flag; /* I2C transaction condition */
+ u8 length; /* data payload length */
+ u8 data[60]; /* data payload */
+} __packed;
+
+struct ft260_i2c_read_request_report {
+ u8 report; /* FT260_I2C_READ_REQ */
+ u8 address; /* 7-bit I2C address */
+ u8 flag; /* I2C transaction condition */
+ __le16 length; /* data payload length */
+} __packed;
+
+struct ft260_i2c_input_report {
+ u8 report; /* FT260_I2C_REPORT */
+ u8 length; /* data payload length */
+ u8 data[2]; /* data payload */
+} __packed;
+
+static const struct hid_device_id ft260_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_FUTURE_TECHNOLOGY,
+ USB_DEVICE_ID_FT260) },
+ { /* END OF LIST */ }
+};
+MODULE_DEVICE_TABLE(hid, ft260_devices);
+
+struct ft260_device {
+ struct i2c_adapter adap;
+ struct hid_device *hdev;
+ struct completion wait;
+ struct mutex lock;
+ u8 write_buf[FT260_REPORT_MAX_LENGTH];
+ u8 *read_buf;
+ u16 read_idx;
+ u16 read_len;
+ u16 clock;
+};
+
+static int ft260_hid_feature_report_get(struct hid_device *hdev,
+ unsigned char report_id, u8 *data,
+ size_t len)
+{
+ u8 *buf;
+ int ret;
+
+ buf = kmalloc(len, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = hid_hw_raw_request(hdev, report_id, buf, len, HID_FEATURE_REPORT,
+ HID_REQ_GET_REPORT);
+ memcpy(data, buf, len);
+ kfree(buf);
+ return ret;
+}
+
+static int ft260_hid_feature_report_set(struct hid_device *hdev, u8 *data,
+ size_t len)
+{
+ u8 *buf;
+ int ret;
+
+ buf = kmemdup(data, len, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ buf[0] = FT260_SYSTEM_SETTINGS;
+
+ ret = hid_hw_raw_request(hdev, buf[0], buf, len, HID_FEATURE_REPORT,
+ HID_REQ_SET_REPORT);
+
+ kfree(buf);
+ return ret;
+}
+
+static int ft260_i2c_reset(struct hid_device *hdev)
+{
+ struct ft260_set_i2c_reset_report report;
+ int ret;
+
+ report.request = FT260_SET_I2C_RESET;
+
+ ret = ft260_hid_feature_report_set(hdev, (u8 *)&report, sizeof(report));
+ if (ret < 0) {
+ hid_err(hdev, "failed to reset I2C controller: %d\n", ret);
+ return ret;
+ }
+
+ ft260_dbg("done\n");
+ return ret;
+}
+
+static int ft260_xfer_status(struct ft260_device *dev)
+{
+ struct hid_device *hdev = dev->hdev;
+ struct ft260_get_i2c_status_report report;
+ int ret;
+
+ ret = ft260_hid_feature_report_get(hdev, FT260_I2C_STATUS,
+ (u8 *)&report, sizeof(report));
+ if (ret < 0) {
+ hid_err(hdev, "failed to retrieve status: %d\n", ret);
+ return ret;
+ }
+
+ dev->clock = le16_to_cpu(report.clock);
+ ft260_dbg("bus_status %#02x, clock %u\n", report.bus_status,
+ dev->clock);
+
+ if (report.bus_status & FT260_I2C_STATUS_CTRL_BUSY)
+ return -EAGAIN;
+
+ if (report.bus_status & FT260_I2C_STATUS_BUS_BUSY)
+ return -EBUSY;
+
+ if (report.bus_status & FT260_I2C_STATUS_ERROR)
+ return -EIO;
+
+ ret = -EIO;
+
+ if (report.bus_status & FT260_I2C_STATUS_ADDR_NO_ACK)
+ ft260_dbg("unacknowledged address\n");
+
+ if (report.bus_status & FT260_I2C_STATUS_DATA_NO_ACK)
+ ft260_dbg("unacknowledged data\n");
+
+ if (report.bus_status & FT260_I2C_STATUS_ARBITR_LOST)
+ ft260_dbg("arbitration loss\n");
+
+ if (report.bus_status & FT260_I2C_STATUS_CTRL_IDLE)
+ ret = 0;
+
+ return ret;
+}
+
+static int ft260_hid_output_report(struct hid_device *hdev, u8 *data,
+ size_t len)
+{
+ u8 *buf;
+ int ret;
+
+ buf = kmemdup(data, len, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = hid_hw_output_report(hdev, buf, len);
+
+ kfree(buf);
+ return ret;
+}
+
+static int ft260_hid_output_report_check_status(struct ft260_device *dev,
+ u8 *data, int len)
+{
+ int ret, usec, try = 3;
+ struct hid_device *hdev = dev->hdev;
+
+ ret = ft260_hid_output_report(hdev, data, len);
+ if (ret < 0) {
+ hid_err(hdev, "%s: failed to start transfer, ret %d\n",
+ __func__, ret);
+ ft260_i2c_reset(hdev);
+ return ret;
+ }
+
+ /* transfer time = 1 / clock(KHz) * 10 bits * bytes */
+ usec = 10000 / dev->clock * len;
+ usleep_range(usec, usec + 100);
+ ft260_dbg("wait %d usec, len %d\n", usec, len);
+ do {
+ ret = ft260_xfer_status(dev);
+ if (ret != -EAGAIN)
+ break;
+ } while (--try);
+
+ if (ret == 0 || ret == -EBUSY)
+ return 0;
+
+ ft260_i2c_reset(hdev);
+ return -EIO;
+}
+
+static int ft260_i2c_write(struct ft260_device *dev, u8 addr, u8 *data,
+ int data_len, u8 flag)
+{
+ int len, ret, idx = 0;
+ struct hid_device *hdev = dev->hdev;
+ struct ft260_i2c_write_request_report *rep =
+ (struct ft260_i2c_write_request_report *)dev->write_buf;
+
+ do {
+ if (data_len <= FT260_WR_DATA_MAX)
+ len = data_len;
+ else
+ len = FT260_WR_DATA_MAX;
+
+ rep->report = FT260_I2C_DATA_REPORT_ID(len);
+ rep->address = addr;
+ rep->length = len;
+ rep->flag = flag;
+
+ memcpy(rep->data, &data[idx], len);
+
+ ft260_dbg("rep %#02x addr %#02x off %d len %d d[0] %#02x\n",
+ rep->report, addr, idx, len, data[0]);
+
+ ret = ft260_hid_output_report_check_status(dev, (u8 *)rep,
+ len + 4);
+ if (ret < 0) {
+ hid_err(hdev, "%s: failed to start transfer, ret %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ data_len -= len;
+ idx += len;
+
+ } while (data_len > 0);
+
+ return 0;
+}
+
+static int ft260_smbus_write(struct ft260_device *dev, u8 addr, u8 cmd,
+ u8 *data, u8 data_len, u8 flag)
+{
+ int ret = 0;
+ int len = 4;
+
+ struct ft260_i2c_write_request_report *rep =
+ (struct ft260_i2c_write_request_report *)dev->write_buf;
+
+ rep->address = addr;
+ rep->data[0] = cmd;
+ rep->length = data_len + 1;
+ rep->flag = flag;
+ len += rep->length;
+
+ rep->report = FT260_I2C_DATA_REPORT_ID(len);
+
+ if (data_len > 0)
+ memcpy(&rep->data[1], data, data_len);
+
+ ft260_dbg("rep %#02x addr %#02x cmd %#02x datlen %d replen %d\n",
+ rep->report, addr, cmd, rep->length, len);
+
+ ret = ft260_hid_output_report_check_status(dev, (u8 *)rep, len);
+
+ return ret;
+}
+
+static int ft260_i2c_read(struct ft260_device *dev, u8 addr, u8 *data,
+ u16 len, u8 flag)
+{
+ struct ft260_i2c_read_request_report rep;
+ struct hid_device *hdev = dev->hdev;
+ int timeout;
+ int ret;
+
+ if (len > FT260_RD_DATA_MAX) {
+ hid_err(hdev, "%s: unsupported rd len: %d\n", __func__, len);
+ return -EINVAL;
+ }
+
+ dev->read_idx = 0;
+ dev->read_buf = data;
+ dev->read_len = len;
+
+ rep.report = FT260_I2C_READ_REQ;
+ rep.length = cpu_to_le16(len);
+ rep.address = addr;
+ rep.flag = flag;
+
+ ft260_dbg("rep %#02x addr %#02x len %d\n", rep.report, rep.address,
+ rep.length);
+
+ reinit_completion(&dev->wait);
+
+ ret = ft260_hid_output_report(hdev, (u8 *)&rep, sizeof(rep));
+ if (ret < 0) {
+ hid_err(hdev, "%s: failed to start transaction, ret %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ timeout = msecs_to_jiffies(5000);
+ if (!wait_for_completion_timeout(&dev->wait, timeout)) {
+ ft260_i2c_reset(hdev);
+ return -ETIMEDOUT;
+ }
+
+ ret = ft260_xfer_status(dev);
+ if (ret == 0)
+ return 0;
+
+ ft260_i2c_reset(hdev);
+ return -EIO;
+}
+
+/*
+ * A random read operation is implemented as a dummy write operation, followed
+ * by a current address read operation. The dummy write operation is used to
+ * load the target byte address into the current byte address counter, from
+ * which the subsequent current address read operation then reads.
+ */
+static int ft260_i2c_write_read(struct ft260_device *dev, struct i2c_msg *msgs)
+{
+ int len, ret;
+ u16 left_len = msgs[1].len;
+ u8 *read_buf = msgs[1].buf;
+ u8 addr = msgs[0].addr;
+ u16 read_off = 0;
+ struct hid_device *hdev = dev->hdev;
+
+ if (msgs[0].len > 2) {
+ hid_err(hdev, "%s: unsupported wr len: %d\n", __func__,
+ msgs[0].len);
+ return -EOPNOTSUPP;
+ }
+
+ memcpy(&read_off, msgs[0].buf, msgs[0].len);
+
+ do {
+ if (left_len <= FT260_RD_DATA_MAX)
+ len = left_len;
+ else
+ len = FT260_RD_DATA_MAX;
+
+ ft260_dbg("read_off %#x left_len %d len %d\n", read_off,
+ left_len, len);
+
+ ret = ft260_i2c_write(dev, addr, (u8 *)&read_off, msgs[0].len,
+ FT260_FLAG_START);
+ if (ret < 0)
+ return ret;
+
+ ret = ft260_i2c_read(dev, addr, read_buf, len,
+ FT260_FLAG_START_STOP);
+ if (ret < 0)
+ return ret;
+
+ left_len -= len;
+ read_buf += len;
+ read_off += len;
+
+ } while (left_len > 0);
+
+ return 0;
+}
+
+static int ft260_i2c_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs,
+ int num)
+{
+ int ret;
+ struct ft260_device *dev = i2c_get_adapdata(adapter);
+ struct hid_device *hdev = dev->hdev;
+
+ mutex_lock(&dev->lock);
+
+ ret = hid_hw_power(hdev, PM_HINT_FULLON);
+ if (ret < 0) {
+ hid_err(hdev, "failed to enter FULLON power mode: %d\n", ret);
+ mutex_unlock(&dev->lock);
+ return ret;
+ }
+
+ if (num == 1) {
+ if (msgs->flags & I2C_M_RD)
+ ret = ft260_i2c_read(dev, msgs->addr, msgs->buf,
+ msgs->len, FT260_FLAG_START_STOP);
+ else
+ ret = ft260_i2c_write(dev, msgs->addr, msgs->buf,
+ msgs->len, FT260_FLAG_START_STOP);
+ if (ret < 0)
+ goto i2c_exit;
+
+ } else {
+ /* Combined write then read message */
+ ret = ft260_i2c_write_read(dev, msgs);
+ if (ret < 0)
+ goto i2c_exit;
+ }
+
+ ret = num;
+i2c_exit:
+ hid_hw_power(hdev, PM_HINT_NORMAL);
+ mutex_unlock(&dev->lock);
+ return ret;
+}
+
+static int ft260_smbus_xfer(struct i2c_adapter *adapter, u16 addr, u16 flags,
+ char read_write, u8 cmd, int size,
+ union i2c_smbus_data *data)
+{
+ int ret;
+ struct ft260_device *dev = i2c_get_adapdata(adapter);
+ struct hid_device *hdev = dev->hdev;
+
+ ft260_dbg("smbus size %d\n", size);
+
+ mutex_lock(&dev->lock);
+
+ ret = hid_hw_power(hdev, PM_HINT_FULLON);
+ if (ret < 0) {
+ hid_err(hdev, "power management error: %d\n", ret);
+ mutex_unlock(&dev->lock);
+ return ret;
+ }
+
+ switch (size) {
+ case I2C_SMBUS_QUICK:
+ if (read_write == I2C_SMBUS_READ)
+ ret = ft260_i2c_read(dev, addr, &data->byte, 0,
+ FT260_FLAG_START_STOP);
+ else
+ ret = ft260_smbus_write(dev, addr, cmd, NULL, 0,
+ FT260_FLAG_START_STOP);
+ break;
+ case I2C_SMBUS_BYTE:
+ if (read_write == I2C_SMBUS_READ)
+ ret = ft260_i2c_read(dev, addr, &data->byte, 1,
+ FT260_FLAG_START_STOP);
+ else
+ ret = ft260_smbus_write(dev, addr, cmd, NULL, 0,
+ FT260_FLAG_START_STOP);
+ break;
+ case I2C_SMBUS_BYTE_DATA:
+ if (read_write == I2C_SMBUS_READ) {
+ ret = ft260_smbus_write(dev, addr, cmd, NULL, 0,
+ FT260_FLAG_START);
+ if (ret)
+ goto smbus_exit;
+
+ ret = ft260_i2c_read(dev, addr, &data->byte, 1,
+ FT260_FLAG_START_STOP_REPEATED);
+ } else {
+ ret = ft260_smbus_write(dev, addr, cmd, &data->byte, 1,
+ FT260_FLAG_START_STOP);
+ }
+ break;
+ case I2C_SMBUS_WORD_DATA:
+ if (read_write == I2C_SMBUS_READ) {
+ ret = ft260_smbus_write(dev, addr, cmd, NULL, 0,
+ FT260_FLAG_START);
+ if (ret)
+ goto smbus_exit;
+
+ ret = ft260_i2c_read(dev, addr, (u8 *)&data->word, 2,
+ FT260_FLAG_START_STOP_REPEATED);
+ } else {
+ ret = ft260_smbus_write(dev, addr, cmd,
+ (u8 *)&data->word, 2,
+ FT260_FLAG_START_STOP);
+ }
+ break;
+ case I2C_SMBUS_BLOCK_DATA:
+ if (read_write == I2C_SMBUS_READ) {
+ ret = ft260_smbus_write(dev, addr, cmd, NULL, 0,
+ FT260_FLAG_START);
+ if (ret)
+ goto smbus_exit;
+
+ ret = ft260_i2c_read(dev, addr, data->block,
+ data->block[0] + 1,
+ FT260_FLAG_START_STOP_REPEATED);
+ } else {
+ ret = ft260_smbus_write(dev, addr, cmd, data->block,
+ data->block[0] + 1,
+ FT260_FLAG_START_STOP);
+ }
+ break;
+ case I2C_SMBUS_I2C_BLOCK_DATA:
+ if (read_write == I2C_SMBUS_READ) {
+ ret = ft260_smbus_write(dev, addr, cmd, NULL, 0,
+ FT260_FLAG_START);
+ if (ret)
+ goto smbus_exit;
+
+ ret = ft260_i2c_read(dev, addr, data->block + 1,
+ data->block[0],
+ FT260_FLAG_START_STOP_REPEATED);
+ } else {
+ ret = ft260_smbus_write(dev, addr, cmd, data->block + 1,
+ data->block[0],
+ FT260_FLAG_START_STOP);
+ }
+ break;
+ default:
+ hid_err(hdev, "unsupported smbus transaction size %d\n", size);
+ ret = -EOPNOTSUPP;
+ }
+
+smbus_exit:
+ hid_hw_power(hdev, PM_HINT_NORMAL);
+ mutex_unlock(&dev->lock);
+ return ret;
+}
+
+static u32 ft260_functionality(struct i2c_adapter *adap)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_BYTE | I2C_FUNC_SMBUS_QUICK |
+ I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
+ I2C_FUNC_SMBUS_BLOCK_DATA | I2C_FUNC_SMBUS_I2C_BLOCK;
+}
+
+static const struct i2c_adapter_quirks ft260_i2c_quirks = {
+ .flags = I2C_AQ_COMB_WRITE_THEN_READ,
+ .max_comb_1st_msg_len = 2,
+};
+
+static const struct i2c_algorithm ft260_i2c_algo = {
+ .master_xfer = ft260_i2c_xfer,
+ .smbus_xfer = ft260_smbus_xfer,
+ .functionality = ft260_functionality,
+};
+
+static int ft260_get_system_config(struct hid_device *hdev,
+ struct ft260_get_system_status_report *cfg)
+{
+ int ret;
+ int len = sizeof(struct ft260_get_system_status_report);
+
+ ret = ft260_hid_feature_report_get(hdev, FT260_SYSTEM_SETTINGS,
+ (u8 *)cfg, len);
+ if (ret != len) {
+ hid_err(hdev, "failed to retrieve system status\n");
+ if (ret >= 0)
+ return -EIO;
+ }
+ return 0;
+}
+
+static int ft260_is_interface_enabled(struct hid_device *hdev)
+{
+ struct ft260_get_system_status_report cfg;
+ struct usb_interface *usbif = to_usb_interface(hdev->dev.parent);
+ int interface = usbif->cur_altsetting->desc.bInterfaceNumber;
+ int ret;
+
+ ret = ft260_get_system_config(hdev, &cfg);
+ if (ret)
+ return ret;
+
+ ft260_dbg("interface: 0x%02x\n", interface);
+ ft260_dbg("chip mode: 0x%02x\n", cfg.chip_mode);
+ ft260_dbg("clock_ctl: 0x%02x\n", cfg.clock_ctl);
+ ft260_dbg("i2c_enable: 0x%02x\n", cfg.i2c_enable);
+ ft260_dbg("uart_mode: 0x%02x\n", cfg.uart_mode);
+
+ switch (cfg.chip_mode) {
+ case FT260_MODE_ALL:
+ case FT260_MODE_BOTH:
+ if (interface == 1) {
+ hid_info(hdev, "uart interface is not supported\n");
+ return 0;
+ }
+ ret = 1;
+ break;
+ case FT260_MODE_UART:
+ if (interface == 0) {
+ hid_info(hdev, "uart is unsupported on interface 0\n");
+ ret = 0;
+ }
+ break;
+ case FT260_MODE_I2C:
+ if (interface == 1) {
+ hid_info(hdev, "i2c is unsupported on interface 1\n");
+ ret = 0;
+ }
+ break;
+ }
+ return ret;
+}
+
+static int ft260_byte_show(struct hid_device *hdev, int id, u8 *cfg, int len,
+ u8 *field, u8 *buf)
+{
+ int ret;
+
+ ret = ft260_hid_feature_report_get(hdev, id, cfg, len);
+ if (ret != len && ret >= 0)
+ return -EIO;
+
+ return scnprintf(buf, PAGE_SIZE, "%hi\n", *field);
+}
+
+static int ft260_word_show(struct hid_device *hdev, int id, u8 *cfg, int len,
+ u16 *field, u8 *buf)
+{
+ int ret;
+
+ ret = ft260_hid_feature_report_get(hdev, id, cfg, len);
+ if (ret != len && ret >= 0)
+ return -EIO;
+
+ return scnprintf(buf, PAGE_SIZE, "%hi\n", le16_to_cpu(*field));
+}
+
+#define FT260_ATTR_SHOW(name, reptype, id, type, func) \
+ static ssize_t name##_show(struct device *kdev, \
+ struct device_attribute *attr, char *buf) \
+ { \
+ struct reptype rep; \
+ struct hid_device *hdev = to_hid_device(kdev); \
+ type *field = &rep.name; \
+ int len = sizeof(rep); \
+ \
+ return func(hdev, id, (u8 *)&rep, len, field, buf); \
+ }
+
+#define FT260_SSTAT_ATTR_SHOW(name) \
+ FT260_ATTR_SHOW(name, ft260_get_system_status_report, \
+ FT260_SYSTEM_SETTINGS, u8, ft260_byte_show)
+
+#define FT260_I2CST_ATTR_SHOW(name) \
+ FT260_ATTR_SHOW(name, ft260_get_i2c_status_report, \
+ FT260_I2C_STATUS, u16, ft260_word_show)
+
+#define FT260_ATTR_STORE(name, reptype, id, req, type, func) \
+ static ssize_t name##_store(struct device *kdev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t count) \
+ { \
+ struct reptype rep; \
+ struct hid_device *hdev = to_hid_device(kdev); \
+ type name; \
+ int ret; \
+ \
+ if (!func(buf, 10, &name)) { \
+ rep.name = name; \
+ rep.report = id; \
+ rep.request = req; \
+ ret = ft260_hid_feature_report_set(hdev, (u8 *)&rep, \
+ sizeof(rep)); \
+ if (!ret) \
+ ret = count; \
+ } else { \
+ ret = -EINVAL; \
+ } \
+ return ret; \
+ }
+
+#define FT260_BYTE_ATTR_STORE(name, reptype, req) \
+ FT260_ATTR_STORE(name, reptype, FT260_SYSTEM_SETTINGS, req, \
+ u8, kstrtou8)
+
+#define FT260_WORD_ATTR_STORE(name, reptype, req) \
+ FT260_ATTR_STORE(name, reptype, FT260_SYSTEM_SETTINGS, req, \
+ u16, kstrtou16)
+
+FT260_SSTAT_ATTR_SHOW(chip_mode);
+static DEVICE_ATTR_RO(chip_mode);
+
+FT260_SSTAT_ATTR_SHOW(pwren_status);
+static DEVICE_ATTR_RO(pwren_status);
+
+FT260_SSTAT_ATTR_SHOW(suspend_status);
+static DEVICE_ATTR_RO(suspend_status);
+
+FT260_SSTAT_ATTR_SHOW(hid_over_i2c_en);
+static DEVICE_ATTR_RO(hid_over_i2c_en);
+
+FT260_SSTAT_ATTR_SHOW(power_saving_en);
+static DEVICE_ATTR_RO(power_saving_en);
+
+FT260_SSTAT_ATTR_SHOW(i2c_enable);
+FT260_BYTE_ATTR_STORE(i2c_enable, ft260_set_i2c_mode_report,
+ FT260_SET_I2C_MODE);
+static DEVICE_ATTR_RW(i2c_enable);
+
+FT260_SSTAT_ATTR_SHOW(uart_mode);
+FT260_BYTE_ATTR_STORE(uart_mode, ft260_set_uart_mode_report,
+ FT260_SET_UART_MODE);
+static DEVICE_ATTR_RW(uart_mode);
+
+FT260_SSTAT_ATTR_SHOW(clock_ctl);
+FT260_BYTE_ATTR_STORE(clock_ctl, ft260_set_system_clock_report,
+ FT260_SET_CLOCK);
+static DEVICE_ATTR_RW(clock_ctl);
+
+FT260_I2CST_ATTR_SHOW(clock);
+FT260_WORD_ATTR_STORE(clock, ft260_set_i2c_speed_report,
+ FT260_SET_I2C_CLOCK_SPEED);
+static DEVICE_ATTR_RW(clock);
+
+static ssize_t i2c_reset_store(struct device *kdev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ struct hid_device *hdev = to_hid_device(kdev);
+ int ret = ft260_i2c_reset(hdev);
+
+ if (ret)
+ return ret;
+ return count;
+}
+static DEVICE_ATTR_WO(i2c_reset);
+
+static const struct attribute_group ft260_attr_group = {
+ .attrs = (struct attribute *[]) {
+ &dev_attr_chip_mode.attr,
+ &dev_attr_pwren_status.attr,
+ &dev_attr_suspend_status.attr,
+ &dev_attr_hid_over_i2c_en.attr,
+ &dev_attr_power_saving_en.attr,
+ &dev_attr_i2c_enable.attr,
+ &dev_attr_uart_mode.attr,
+ &dev_attr_clock_ctl.attr,
+ &dev_attr_i2c_reset.attr,
+ &dev_attr_clock.attr,
+ NULL
+ }
+};
+
+static int ft260_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ struct ft260_device *dev;
+ struct ft260_get_chip_version_report version;
+ int ret;
+
+ dev = devm_kzalloc(&hdev->dev, sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ hid_err(hdev, "failed to parse HID\n");
+ return ret;
+ }
+
+ ret = hid_hw_start(hdev, HID_CONNECT_HIDRAW);
+ if (ret) {
+ hid_err(hdev, "failed to start HID HW\n");
+ return ret;
+ }
+
+ ret = hid_hw_open(hdev);
+ if (ret) {
+ hid_err(hdev, "failed to open HID HW\n");
+ goto err_hid_stop;
+ }
+
+ ret = ft260_hid_feature_report_get(hdev, FT260_CHIP_VERSION,
+ (u8 *)&version, sizeof(version));
+ if (ret != sizeof(version)) {
+ hid_err(hdev, "failed to retrieve chip version\n");
+ if (ret >= 0)
+ ret = -EIO;
+ goto err_hid_close;
+ }
+
+ hid_info(hdev, "chip code: %02x%02x %02x%02x\n",
+ version.chip_code[0], version.chip_code[1],
+ version.chip_code[2], version.chip_code[3]);
+
+ ret = ft260_is_interface_enabled(hdev);
+ if (ret <= 0)
+ goto err_hid_close;
+
+ hid_set_drvdata(hdev, dev);
+ dev->hdev = hdev;
+ dev->adap.owner = THIS_MODULE;
+ dev->adap.class = I2C_CLASS_HWMON;
+ dev->adap.algo = &ft260_i2c_algo;
+ dev->adap.quirks = &ft260_i2c_quirks;
+ dev->adap.dev.parent = &hdev->dev;
+ snprintf(dev->adap.name, sizeof(dev->adap.name),
+ "FT260 usb-i2c bridge on hidraw%d",
+ ((struct hidraw *)hdev->hidraw)->minor);
+
+ mutex_init(&dev->lock);
+ init_completion(&dev->wait);
+
+ ret = i2c_add_adapter(&dev->adap);
+ if (ret) {
+ hid_err(hdev, "failed to add i2c adapter\n");
+ goto err_hid_close;
+ }
+
+ i2c_set_adapdata(&dev->adap, dev);
+
+ ret = sysfs_create_group(&hdev->dev.kobj, &ft260_attr_group);
+ if (ret < 0) {
+ hid_err(hdev, "failed to create sysfs attrs\n");
+ goto err_i2c_free;
+ }
+
+ ret = ft260_xfer_status(dev);
+ if (ret)
+ ft260_i2c_reset(hdev);
+
+ return 0;
+
+err_i2c_free:
+ i2c_del_adapter(&dev->adap);
+err_hid_close:
+ hid_hw_close(hdev);
+err_hid_stop:
+ hid_hw_stop(hdev);
+ return ret;
+}
+
+static void ft260_remove(struct hid_device *hdev)
+{
+ int ret;
+ struct ft260_device *dev = hid_get_drvdata(hdev);
+
+ ret = ft260_is_interface_enabled(hdev);
+ if (ret <= 0)
+ return;
+
+ sysfs_remove_group(&hdev->dev.kobj, &ft260_attr_group);
+ i2c_del_adapter(&dev->adap);
+
+ hid_hw_close(hdev);
+ hid_hw_stop(hdev);
+}
+
+static int ft260_raw_event(struct hid_device *hdev, struct hid_report *report,
+ u8 *data, int size)
+{
+ struct ft260_device *dev = hid_get_drvdata(hdev);
+ struct ft260_i2c_input_report *xfer = (void *)data;
+
+ if (xfer->report >= FT260_I2C_REPORT_MIN &&
+ xfer->report <= FT260_I2C_REPORT_MAX) {
+ ft260_dbg("i2c resp: rep %#02x len %d\n", xfer->report,
+ xfer->length);
+
+ memcpy(&dev->read_buf[dev->read_idx], &xfer->data,
+ xfer->length);
+ dev->read_idx += xfer->length;
+
+ if (dev->read_idx == dev->read_len)
+ complete(&dev->wait);
+
+ } else {
+ hid_err(hdev, "unknown report: %#02x\n", xfer->report);
+ return 0;
+ }
+ return 1;
+}
+
+static struct hid_driver ft260_driver = {
+ .name = "ft260",
+ .id_table = ft260_devices,
+ .probe = ft260_probe,
+ .remove = ft260_remove,
+ .raw_event = ft260_raw_event,
+};
+
+module_hid_driver(ft260_driver);
+MODULE_DESCRIPTION("FTDI FT260 USB HID to I2C host bridge");
+MODULE_AUTHOR("Michael Zaidman <michael.zaidman@gmail.com>");
+MODULE_LICENSE("GPL v2");
#define BT_VENDOR_ID_APPLE 0x004c
#define USB_DEVICE_ID_APPLE_MIGHTYMOUSE 0x0304
#define USB_DEVICE_ID_APPLE_MAGICMOUSE 0x030d
+#define USB_DEVICE_ID_APPLE_MAGICMOUSE2 0x0269
#define USB_DEVICE_ID_APPLE_MAGICTRACKPAD 0x030e
#define USB_DEVICE_ID_APPLE_MAGICTRACKPAD2 0x0265
#define USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI 0x020e
#define USB_VENDOR_ID_FUTURE_TECHNOLOGY 0x0403
#define USB_DEVICE_ID_RETRODE2 0x97c1
+#define USB_DEVICE_ID_FT260 0x6030
#define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
#define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
#define USB_DEVICE_ID_LOGITECH_27MHZ_MOUSE_RECEIVER 0xc51b
#define USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER 0xc52b
#define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER 0xc52f
+#define USB_DEVICE_ID_LOGITECH_G700_RECEIVER 0xc531
#define USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2 0xc532
#define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2 0xc534
#define USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1 0xc539
#define USB_DEVICE_ID_SPACETRAVELLER 0xc623
#define USB_DEVICE_ID_SPACENAVIGATOR 0xc626
#define USB_DEVICE_ID_DINOVO_DESKTOP 0xc704
-#define USB_DEVICE_ID_DINOVO_EDGE 0xc714
-#define USB_DEVICE_ID_DINOVO_MINI 0xc71f
+#define USB_DEVICE_ID_MX5000_RECEIVER_MOUSE_DEV 0xc70a
+#define USB_DEVICE_ID_MX5000_RECEIVER_KBD_DEV 0xc70e
+#define USB_DEVICE_ID_DINOVO_EDGE_RECEIVER_KBD_DEV 0xc713
+#define USB_DEVICE_ID_DINOVO_EDGE_RECEIVER_MOUSE_DEV 0xc714
+#define USB_DEVICE_ID_MX5500_RECEIVER_KBD_DEV 0xc71b
+#define USB_DEVICE_ID_MX5500_RECEIVER_MOUSE_DEV 0xc71c
+#define USB_DEVICE_ID_DINOVO_MINI_RECEIVER_KBD_DEV 0xc71e
+#define USB_DEVICE_ID_DINOVO_MINI_RECEIVER_MOUSE_DEV 0xc71f
#define USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2 0xca03
#define USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL 0xca04
#define USB_DEVICE_ID_ORTEK_IHOME_IMAC_A210S 0x8003
#define USB_VENDOR_ID_PLANTRONICS 0x047f
+#define USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3220_SERIES 0xc056
#define USB_VENDOR_ID_PANASONIC 0x04da
#define USB_DEVICE_ID_PANABOARD_UBT780 0x1044
return ret;
}
-static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
+static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
+ struct hid_field *field, bool is_percentage)
{
struct power_supply_desc *psy_desc;
struct power_supply_config psy_cfg = { .drv_data = dev, };
min = field->logical_minimum;
max = field->logical_maximum;
- if (quirks & HID_BATTERY_QUIRK_PERCENT) {
+ if (is_percentage || (quirks & HID_BATTERY_QUIRK_PERCENT)) {
min = 0;
max = 100;
}
}
#else /* !CONFIG_HID_BATTERY_STRENGTH */
static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
- struct hid_field *field)
+ struct hid_field *field, bool is_percentage)
{
return 0;
}
break;
case 0x3b: /* Battery Strength */
- hidinput_setup_battery(device, HID_INPUT_REPORT, field);
+ hidinput_setup_battery(device, HID_INPUT_REPORT, field, false);
usage->type = EV_PWR;
return;
case HID_UP_GENDEVCTRLS:
switch (usage->hid) {
case HID_DC_BATTERYSTRENGTH:
- hidinput_setup_battery(device, HID_INPUT_REPORT, field);
+ hidinput_setup_battery(device, HID_INPUT_REPORT, field, false);
+ usage->type = EV_PWR;
+ return;
+ }
+ goto unknown;
+
+ case HID_UP_BATTERY:
+ switch (usage->hid) {
+ case HID_BAT_ABSOLUTESTATEOFCHARGE:
+ hidinput_setup_battery(device, HID_INPUT_REPORT, field, true);
usage->type = EV_PWR;
return;
}
/* Verify if Battery Strength feature is available */
if (usage->hid == HID_DC_BATTERYSTRENGTH)
hidinput_setup_battery(hid, HID_FEATURE_REPORT,
- rep->field[i]);
+ rep->field[i], false);
if (drv->feature_mapping)
drv->feature_mapping(hid, rep->field[i], usage);
}
/**
- * Enable fully-functional tablet mode by setting a special feature report.
+ * kye_tablet_enable() - Enable fully-functional tablet mode by setting a special feature report.
*
* @hdev: HID device
*
#include "hid-ids.h"
+/* Userspace expects F20 for mic-mute KEY_MICMUTE does not work */
+#define LENOVO_KEY_MICMUTE KEY_F20
+
struct lenovo_drvdata {
u8 led_report[3]; /* Must be first for proper alignment */
int led_state;
#define TP10UBKBD_LED_OFF 1
#define TP10UBKBD_LED_ON 2
-static void lenovo_led_set_tp10ubkbd(struct hid_device *hdev, u8 led_code,
- enum led_brightness value)
+static int lenovo_led_set_tp10ubkbd(struct hid_device *hdev, u8 led_code,
+ enum led_brightness value)
{
struct lenovo_drvdata *data = hid_get_drvdata(hdev);
int ret;
data->led_report[2] = value ? TP10UBKBD_LED_ON : TP10UBKBD_LED_OFF;
ret = hid_hw_raw_request(hdev, data->led_report[0], data->led_report, 3,
HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
- if (ret)
- hid_err(hdev, "Set LED output report error: %d\n", ret);
+ if (ret != 3) {
+ if (ret != -ENODEV)
+ hid_err(hdev, "Set LED output report error: %d\n", ret);
+
+ ret = ret < 0 ? ret : -EIO;
+ } else {
+ ret = 0;
+ }
mutex_unlock(&data->led_report_mutex);
+
+ return ret;
}
static void lenovo_tp10ubkbd_sync_fn_lock(struct work_struct *work)
if (usage->hid == (HID_UP_BUTTON | 0x0010)) {
/* This sub-device contains trackpoint, mark it */
hid_set_drvdata(hdev, (void *)1);
- map_key_clear(KEY_MICMUTE);
+ map_key_clear(LENOVO_KEY_MICMUTE);
return 1;
}
return 0;
(usage->hid & HID_USAGE_PAGE) == HID_UP_LNVENDOR) {
switch (usage->hid & HID_USAGE) {
case 0x00f1: /* Fn-F4: Mic mute */
- map_key_clear(KEY_MICMUTE);
+ map_key_clear(LENOVO_KEY_MICMUTE);
return 1;
case 0x00f2: /* Fn-F5: Brightness down */
map_key_clear(KEY_BRIGHTNESSDOWN);
map_key_clear(KEY_FN_ESC);
return 1;
case 9: /* Fn-F4: Mic mute */
- map_key_clear(KEY_MICMUTE);
+ map_key_clear(LENOVO_KEY_MICMUTE);
return 1;
case 10: /* Fn-F7: Control panel */
map_key_clear(KEY_CONFIG);
return 0;
}
+static int lenovo_input_mapping_x1_tab_kbd(struct hid_device *hdev,
+ struct hid_input *hi, struct hid_field *field,
+ struct hid_usage *usage, unsigned long **bit, int *max)
+{
+ /*
+ * The ThinkPad X1 Tablet Thin Keyboard uses 0x000c0001 usage for
+ * a bunch of keys which have no standard consumer page code.
+ */
+ if (usage->hid == 0x000c0001) {
+ switch (usage->usage_index) {
+ case 0: /* Fn-F10: Enable/disable bluetooth */
+ map_key_clear(KEY_BLUETOOTH);
+ return 1;
+ case 1: /* Fn-F11: Keyboard settings */
+ map_key_clear(KEY_KEYBOARD);
+ return 1;
+ case 2: /* Fn-F12: User function / Cortana */
+ map_key_clear(KEY_MACRO1);
+ return 1;
+ case 3: /* Fn-PrtSc: Snipping tool */
+ map_key_clear(KEY_SELECTIVE_SCREENSHOT);
+ return 1;
+ case 8: /* Fn-Esc: Fn-lock toggle */
+ map_key_clear(KEY_FN_ESC);
+ return 1;
+ case 9: /* Fn-F4: Mute/unmute microphone */
+ map_key_clear(KEY_MICMUTE);
+ return 1;
+ case 10: /* Fn-F9: Settings */
+ map_key_clear(KEY_CONFIG);
+ return 1;
+ case 13: /* Fn-F7: Manage external displays */
+ map_key_clear(KEY_SWITCHVIDEOMODE);
+ return 1;
+ case 14: /* Fn-F8: Enable/disable wifi */
+ map_key_clear(KEY_WLAN);
+ return 1;
+ }
+ }
+
+ if (usage->hid == (HID_UP_KEYBOARD | 0x009a)) {
+ map_key_clear(KEY_SYSRQ);
+ return 1;
+ }
+
+ return 0;
+}
+
static int lenovo_input_mapping(struct hid_device *hdev,
struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
case USB_DEVICE_ID_LENOVO_TP10UBKBD:
return lenovo_input_mapping_tp10_ultrabook_kbd(hdev, hi, field,
usage, bit, max);
+ case USB_DEVICE_ID_LENOVO_X1_TAB:
+ return lenovo_input_mapping_x1_tab_kbd(hdev, hi, field, usage, bit, max);
default:
return 0;
}
{
struct hid_device *hdev = to_hid_device(dev);
struct lenovo_drvdata *data = hid_get_drvdata(hdev);
- int value;
+ int value, ret;
if (kstrtoint(buf, 10, &value))
return -EINVAL;
lenovo_features_set_cptkbd(hdev);
break;
case USB_DEVICE_ID_LENOVO_TP10UBKBD:
- lenovo_led_set_tp10ubkbd(hdev, TP10UBKBD_FN_LOCK_LED, value);
+ case USB_DEVICE_ID_LENOVO_X1_TAB:
+ ret = lenovo_led_set_tp10ubkbd(hdev, TP10UBKBD_FN_LOCK_LED, value);
+ if (ret)
+ return ret;
break;
}
static int lenovo_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
+ if (!hid_get_drvdata(hdev))
+ return 0;
+
switch (hdev->product) {
case USB_DEVICE_ID_LENOVO_CUSBKBD:
case USB_DEVICE_ID_LENOVO_CBTKBD:
return lenovo_event_cptkbd(hdev, field, usage, value);
case USB_DEVICE_ID_LENOVO_TP10UBKBD:
+ case USB_DEVICE_ID_LENOVO_X1_TAB:
return lenovo_event_tp10ubkbd(hdev, field, usage, value);
default:
return 0;
hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
}
-static enum led_brightness lenovo_led_brightness_get(
- struct led_classdev *led_cdev)
-{
- struct device *dev = led_cdev->dev->parent;
- struct hid_device *hdev = to_hid_device(dev);
- struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
- int led_nr = 0;
-
- if (led_cdev == &data_pointer->led_micmute)
- led_nr = 1;
-
- return data_pointer->led_state & (1 << led_nr)
- ? LED_FULL
- : LED_OFF;
-}
-
-static void lenovo_led_brightness_set(struct led_classdev *led_cdev,
+static int lenovo_led_brightness_set(struct led_classdev *led_cdev,
enum led_brightness value)
{
struct device *dev = led_cdev->dev->parent;
struct lenovo_drvdata *data_pointer = hid_get_drvdata(hdev);
u8 tp10ubkbd_led[] = { TP10UBKBD_MUTE_LED, TP10UBKBD_MICMUTE_LED };
int led_nr = 0;
+ int ret = 0;
if (led_cdev == &data_pointer->led_micmute)
led_nr = 1;
lenovo_led_set_tpkbd(hdev);
break;
case USB_DEVICE_ID_LENOVO_TP10UBKBD:
- lenovo_led_set_tp10ubkbd(hdev, tp10ubkbd_led[led_nr], value);
+ case USB_DEVICE_ID_LENOVO_X1_TAB:
+ ret = lenovo_led_set_tp10ubkbd(hdev, tp10ubkbd_led[led_nr], value);
break;
}
+
+ return ret;
}
static int lenovo_register_leds(struct hid_device *hdev)
snprintf(name_micm, name_sz, "%s:amber:micmute", dev_name(&hdev->dev));
data->led_mute.name = name_mute;
- data->led_mute.brightness_get = lenovo_led_brightness_get;
- data->led_mute.brightness_set = lenovo_led_brightness_set;
+ data->led_mute.default_trigger = "audio-mute";
+ data->led_mute.brightness_set_blocking = lenovo_led_brightness_set;
+ data->led_mute.max_brightness = 1;
+ data->led_mute.flags = LED_HW_PLUGGABLE;
data->led_mute.dev = &hdev->dev;
ret = led_classdev_register(&hdev->dev, &data->led_mute);
if (ret < 0)
return ret;
data->led_micmute.name = name_micm;
- data->led_micmute.brightness_get = lenovo_led_brightness_get;
- data->led_micmute.brightness_set = lenovo_led_brightness_set;
+ data->led_micmute.default_trigger = "audio-micmute";
+ data->led_micmute.brightness_set_blocking = lenovo_led_brightness_set;
+ data->led_micmute.max_brightness = 1;
+ data->led_micmute.flags = LED_HW_PLUGGABLE;
data->led_micmute.dev = &hdev->dev;
ret = led_classdev_register(&hdev->dev, &data->led_micmute);
if (ret < 0) {
static int lenovo_probe_tp10ubkbd(struct hid_device *hdev)
{
+ struct hid_report_enum *rep_enum;
struct lenovo_drvdata *data;
+ struct hid_report *rep;
+ bool found;
int ret;
- /* All the custom action happens on the USBMOUSE device for USB */
- if (hdev->type != HID_TYPE_USBMOUSE)
+ /*
+ * The LEDs and the Fn-lock functionality use output report 9,
+ * with an application of 0xffa0001, add the LEDs on the interface
+ * with this output report.
+ */
+ found = false;
+ rep_enum = &hdev->report_enum[HID_OUTPUT_REPORT];
+ list_for_each_entry(rep, &rep_enum->report_list, list) {
+ if (rep->application == 0xffa00001)
+ found = true;
+ }
+ if (!found)
return 0;
data = devm_kzalloc(&hdev->dev, sizeof(*data), GFP_KERNEL);
ret = lenovo_probe_cptkbd(hdev);
break;
case USB_DEVICE_ID_LENOVO_TP10UBKBD:
+ case USB_DEVICE_ID_LENOVO_X1_TAB:
ret = lenovo_probe_tp10ubkbd(hdev);
break;
default:
lenovo_remove_cptkbd(hdev);
break;
case USB_DEVICE_ID_LENOVO_TP10UBKBD:
+ case USB_DEVICE_ID_LENOVO_X1_TAB:
lenovo_remove_tp10ubkbd(hdev);
break;
}
{ HID_USB_DEVICE(USB_VENDOR_ID_IBM, USB_DEVICE_ID_IBM_SCROLLPOINT_800DPI_OPTICAL_PRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_SCROLLPOINT_OPTICAL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TP10UBKBD) },
+ /*
+ * Note bind to the HID_GROUP_GENERIC group, so that we only bind to the keyboard
+ * part, while letting hid-multitouch.c handle the touchpad and trackpoint.
+ */
+ { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
+ USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_X1_TAB) },
{ }
};
return 1;
}
-static int lg_dinovo_mapping(struct hid_input *hi, struct hid_usage *usage,
- unsigned long **bit, int *max)
-{
- if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
- return 0;
-
- switch (usage->hid & HID_USAGE) {
-
- case 0x00d: lg_map_key_clear(KEY_MEDIA); break;
- default:
- return 0;
-
- }
- return 1;
-}
-
static int lg_wireless_mapping(struct hid_input *hi, struct hid_usage *usage,
unsigned long **bit, int *max)
{
lg_ultrax_remote_mapping(hi, usage, bit, max))
return 1;
- if (hdev->product == USB_DEVICE_ID_DINOVO_MINI &&
- lg_dinovo_mapping(hi, usage, bit, max))
- return 1;
-
if ((drv_data->quirks & LG_WIRELESS) && lg_wireless_mapping(hi, usage, bit, max))
return 1;
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP),
.driver_data = LG_DUPLICATE_USAGES },
- { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE),
- .driver_data = LG_DUPLICATE_USAGES },
- { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI),
- .driver_data = LG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD),
.driver_data = LG_IGNORE_DOUBLED_WHEEL | LG_EXPANDED_KEYMAP },
#define STD_MOUSE BIT(2)
#define MULTIMEDIA BIT(3)
#define POWER_KEYS BIT(4)
+#define KBD_MOUSE BIT(5)
#define MEDIA_CENTER BIT(8)
#define KBD_LEDS BIT(14)
/* Fake (bitnr > NUMBER_OF_HID_REPORTS) bit to track HID++ capability */
recvr_type_mouse_only,
recvr_type_27mhz,
recvr_type_bluetooth,
+ recvr_type_dinovo,
};
struct dj_report {
0xC0, /* END_COLLECTION */
};
+/* Mouse descriptor (5) for Bluetooth receiver, normal-res hwheel, 8 buttons */
+static const char mse5_bluetooth_descriptor[] = {
+ 0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
+ 0x09, 0x02, /* Usage (Mouse) */
+ 0xa1, 0x01, /* Collection (Application) */
+ 0x85, 0x05, /* Report ID (5) */
+ 0x09, 0x01, /* Usage (Pointer) */
+ 0xa1, 0x00, /* Collection (Physical) */
+ 0x05, 0x09, /* Usage Page (Button) */
+ 0x19, 0x01, /* Usage Minimum (1) */
+ 0x29, 0x08, /* Usage Maximum (8) */
+ 0x15, 0x00, /* Logical Minimum (0) */
+ 0x25, 0x01, /* Logical Maximum (1) */
+ 0x95, 0x08, /* Report Count (8) */
+ 0x75, 0x01, /* Report Size (1) */
+ 0x81, 0x02, /* Input (Data,Var,Abs) */
+ 0x05, 0x01, /* Usage Page (Generic Desktop) */
+ 0x16, 0x01, 0xf8, /* Logical Minimum (-2047) */
+ 0x26, 0xff, 0x07, /* Logical Maximum (2047) */
+ 0x75, 0x0c, /* Report Size (12) */
+ 0x95, 0x02, /* Report Count (2) */
+ 0x09, 0x30, /* Usage (X) */
+ 0x09, 0x31, /* Usage (Y) */
+ 0x81, 0x06, /* Input (Data,Var,Rel) */
+ 0x15, 0x81, /* Logical Minimum (-127) */
+ 0x25, 0x7f, /* Logical Maximum (127) */
+ 0x75, 0x08, /* Report Size (8) */
+ 0x95, 0x01, /* Report Count (1) */
+ 0x09, 0x38, /* Usage (Wheel) */
+ 0x81, 0x06, /* Input (Data,Var,Rel) */
+ 0x05, 0x0c, /* Usage Page (Consumer Devices) */
+ 0x0a, 0x38, 0x02, /* Usage (AC Pan) */
+ 0x15, 0x81, /* Logical Minimum (-127) */
+ 0x25, 0x7f, /* Logical Maximum (127) */
+ 0x75, 0x08, /* Report Size (8) */
+ 0x95, 0x01, /* Report Count (1) */
+ 0x81, 0x06, /* Input (Data,Var,Rel) */
+ 0xc0, /* End Collection */
+ 0xc0, /* End Collection */
+};
+
/* Gaming Mouse descriptor (2) */
static const char mse_high_res_descriptor[] = {
0x05, 0x01, /* USAGE_PAGE (Generic Desktop) */
#define MAX_RDESC_SIZE \
(sizeof(kbd_descriptor) + \
sizeof(mse_bluetooth_descriptor) + \
+ sizeof(mse5_bluetooth_descriptor) + \
sizeof(consumer_descriptor) + \
sizeof(syscontrol_descriptor) + \
sizeof(media_descriptor) + \
static LIST_HEAD(dj_hdev_list);
static DEFINE_MUTEX(dj_hdev_list_lock);
+static bool recvr_type_is_bluetooth(enum recvr_type type)
+{
+ return type == recvr_type_bluetooth || type == recvr_type_dinovo;
+}
+
/*
* dj/HID++ receivers are really a single logical entity, but for BIOS/Windows
* compatibility they have multiple USB interfaces. On HID++ receivers we need
* The bluetooth receiver contains a built-in hub and has separate
* USB-devices for the keyboard and mouse interfaces.
*/
- sep = (type == recvr_type_bluetooth) ? '.' : '/';
+ sep = recvr_type_is_bluetooth(type) ? '.' : '/';
/* Try to find an already-probed interface from the same device */
list_for_each_entry(djrcv_dev, &dj_hdev_list, list) {
* touchpad to work we must also forward mouse input reports to the dj_hiddev
* created for the keyboard (instead of forwarding them to a second paired
* device with a device_type of REPORT_TYPE_MOUSE as we normally would).
+ *
+ * On Dinovo receivers the keyboard's touchpad and an optional paired actual
+ * mouse send separate input reports, INPUT(2) aka STD_MOUSE for the mouse
+ * and INPUT(5) aka KBD_MOUSE for the keyboard's touchpad.
+ *
+ * On MX5x00 receivers (which can also be paired with a Dinovo keyboard)
+ * INPUT(2) is used for both an optional paired actual mouse and for the
+ * keyboard's touchpad.
*/
static const u16 kbd_builtin_touchpad_ids[] = {
0xb309, /* Dinovo Edge */
id = (workitem->quad_id_msb << 8) | workitem->quad_id_lsb;
for (i = 0; i < ARRAY_SIZE(kbd_builtin_touchpad_ids); i++) {
if (id == kbd_builtin_touchpad_ids[i]) {
- workitem->reports_supported |= STD_MOUSE;
+ if (djrcv_dev->type == recvr_type_dinovo)
+ workitem->reports_supported |= KBD_MOUSE;
+ else
+ workitem->reports_supported |= STD_MOUSE;
break;
}
}
else if (djdev->dj_receiver_dev->type == recvr_type_27mhz)
rdcat(rdesc, &rsize, mse_27mhz_descriptor,
sizeof(mse_27mhz_descriptor));
- else if (djdev->dj_receiver_dev->type == recvr_type_bluetooth)
+ else if (recvr_type_is_bluetooth(djdev->dj_receiver_dev->type))
rdcat(rdesc, &rsize, mse_bluetooth_descriptor,
sizeof(mse_bluetooth_descriptor));
else
sizeof(mse_descriptor));
}
+ if (djdev->reports_supported & KBD_MOUSE) {
+ dbg_hid("%s: sending a kbd-mouse descriptor, reports_supported: %llx\n",
+ __func__, djdev->reports_supported);
+ rdcat(rdesc, &rsize, mse5_bluetooth_descriptor,
+ sizeof(mse5_bluetooth_descriptor));
+ }
+
if (djdev->reports_supported & MULTIMEDIA) {
dbg_hid("%s: sending a multimedia report descriptor: %llx\n",
__func__, djdev->reports_supported);
case recvr_type_mouse_only: no_dj_interfaces = 2; break;
case recvr_type_27mhz: no_dj_interfaces = 2; break;
case recvr_type_bluetooth: no_dj_interfaces = 2; break;
+ case recvr_type_dinovo: no_dj_interfaces = 2; break;
}
if (hid_is_using_ll_driver(hdev, &usb_hid_driver)) {
intf = to_usb_interface(hdev->dev.parent);
}
static const struct hid_device_id logi_dj_receivers[] = {
- {HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
+ { /* Logitech unifying receiver (0xc52b) */
+ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER),
.driver_data = recvr_type_dj},
- {HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
+ { /* Logitech unifying receiver (0xc532) */
+ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2),
.driver_data = recvr_type_dj},
- { /* Logitech Nano mouse only receiver */
+
+ { /* Logitech Nano mouse only receiver (0xc52f) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_NANO_RECEIVER),
.driver_data = recvr_type_mouse_only},
- { /* Logitech Nano (non DJ) receiver */
+ { /* Logitech Nano (non DJ) receiver (0xc534) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_2),
.driver_data = recvr_type_hidpp},
+
{ /* Logitech G700(s) receiver (0xc531) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- 0xc531),
+ USB_DEVICE_ID_LOGITECH_G700_RECEIVER),
.driver_data = recvr_type_gaming_hidpp},
{ /* Logitech G602 receiver (0xc537) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1),
.driver_data = recvr_type_gaming_hidpp},
+ { /* Logitech powerplay receiver (0xc53a) */
+ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
+ USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_POWERPLAY),
+ .driver_data = recvr_type_gaming_hidpp},
{ /* Logitech lightspeed receiver (0xc53f) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_LIGHTSPEED_1_1),
.driver_data = recvr_type_gaming_hidpp},
+
{ /* Logitech 27 MHz HID++ 1.0 receiver (0xc513) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER),
.driver_data = recvr_type_27mhz},
- { /* Logitech powerplay receiver (0xc53a) */
- HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- USB_DEVICE_ID_LOGITECH_NANO_RECEIVER_POWERPLAY),
- .driver_data = recvr_type_gaming_hidpp},
{ /* Logitech 27 MHz HID++ 1.0 receiver (0xc517) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_S510_RECEIVER_2),
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
USB_DEVICE_ID_LOGITECH_27MHZ_MOUSE_RECEIVER),
.driver_data = recvr_type_27mhz},
- { /* Logitech MX5000 HID++ / bluetooth receiver keyboard intf. */
+
+ { /* Logitech MX5000 HID++ / bluetooth receiver keyboard intf. (0xc70e) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- 0xc70e),
+ USB_DEVICE_ID_MX5000_RECEIVER_KBD_DEV),
.driver_data = recvr_type_bluetooth},
- { /* Logitech MX5000 HID++ / bluetooth receiver mouse intf. */
+ { /* Logitech MX5000 HID++ / bluetooth receiver mouse intf. (0xc70a) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- 0xc70a),
+ USB_DEVICE_ID_MX5000_RECEIVER_MOUSE_DEV),
.driver_data = recvr_type_bluetooth},
- { /* Logitech MX5500 HID++ / bluetooth receiver keyboard intf. */
+ { /* Logitech MX5500 HID++ / bluetooth receiver keyboard intf. (0xc71b) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- 0xc71b),
+ USB_DEVICE_ID_MX5500_RECEIVER_KBD_DEV),
.driver_data = recvr_type_bluetooth},
- { /* Logitech MX5500 HID++ / bluetooth receiver mouse intf. */
+ { /* Logitech MX5500 HID++ / bluetooth receiver mouse intf. (0xc71c) */
HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
- 0xc71c),
+ USB_DEVICE_ID_MX5500_RECEIVER_MOUSE_DEV),
.driver_data = recvr_type_bluetooth},
+
+ { /* Logitech Dinovo Edge HID++ / bluetooth receiver keyboard intf. (0xc713) */
+ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
+ USB_DEVICE_ID_DINOVO_EDGE_RECEIVER_KBD_DEV),
+ .driver_data = recvr_type_dinovo},
+ { /* Logitech Dinovo Edge HID++ / bluetooth receiver mouse intf. (0xc714) */
+ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
+ USB_DEVICE_ID_DINOVO_EDGE_RECEIVER_MOUSE_DEV),
+ .driver_data = recvr_type_dinovo},
+ { /* Logitech DiNovo Mini HID++ / bluetooth receiver mouse intf. (0xc71e) */
+ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
+ USB_DEVICE_ID_DINOVO_MINI_RECEIVER_KBD_DEV),
+ .driver_data = recvr_type_dinovo},
+ { /* Logitech DiNovo Mini HID++ / bluetooth receiver keyboard intf. (0xc71f) */
+ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH,
+ USB_DEVICE_ID_DINOVO_MINI_RECEIVER_MOUSE_DEV),
+ .driver_data = recvr_type_dinovo},
{}
};
return ret == fields_count ? 0 : -1;
}
-/**
+/*
* hidpp_send_message_sync() returns 0 in case of success, and something else
* in case of a failure.
* - If ' something else' is positive, that means that an error has been raised
(report->rap.sub_id == 0x41));
}
-/**
+/*
* hidpp_prefix_name() prefixes the current given name with "Logitech ".
*/
static void hidpp_prefix_name(char **name, int name_length)
* hidpp_scroll_counter_handle_scroll() - Send high- and low-resolution scroll
* events given a high-resolution wheel
* movement.
+ * @input_dev: Pointer to the input device
* @counter: a hid_scroll_counter struct describing the wheel.
* @hi_res_value: the movement of the wheel, in the mouse's high-resolution
* units.
uint8_t persistent;
};
-/**
+/*
* send a set state command to the device by reading the current items->state
* field. items is then filled with the current state.
*/
#include <linux/input/mt.h>
#include <linux/module.h>
#include <linux/slab.h>
+#include <linux/workqueue.h>
#include "hid-ids.h"
#define TRACKPAD2_USB_REPORT_ID 0x02
#define TRACKPAD2_BT_REPORT_ID 0x31
#define MOUSE_REPORT_ID 0x29
+#define MOUSE2_REPORT_ID 0x12
#define DOUBLE_REPORT_ID 0xf7
/* These definitions are not precise, but they're close enough. (Bits
* 0x03 seem to indicate the aspect ratio of the touch, bits 0x70 seem
u8 size;
} touches[16];
int tracking_ids[16];
+
+ struct hid_device *hdev;
+ struct delayed_work work;
};
static int magicmouse_firm_touch(struct magicmouse_sc *msc)
int id, x, y, size, orientation, touch_major, touch_minor, state, down;
int pressure = 0;
- if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
+ input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
id = (tdata[6] << 2 | tdata[5] >> 6) & 0xf;
x = (tdata[1] << 28 | tdata[0] << 20) >> 20;
y = -((tdata[2] << 24 | tdata[1] << 16) >> 20);
input_report_abs(input, ABS_MT_PRESSURE, pressure);
if (report_undeciphered) {
- if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE)
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
+ input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2)
input_event(input, EV_MSC, MSC_RAW, tdata[7]);
else if (input->id.product !=
USB_DEVICE_ID_APPLE_MAGICTRACKPAD2)
* ts = data[3] >> 6 | data[4] << 2 | data[5] << 10;
*/
break;
+ case MOUSE2_REPORT_ID:
+ /* Size is either 8 or (14 + 8 * N) */
+ if (size != 8 && (size < 14 || (size - 14) % 8 != 0))
+ return 0;
+ npoints = (size - 14) / 8;
+ if (npoints > 15) {
+ hid_warn(hdev, "invalid size value (%d) for MOUSE2_REPORT_ID\n",
+ size);
+ return 0;
+ }
+ msc->ntouches = 0;
+ for (ii = 0; ii < npoints; ii++)
+ magicmouse_emit_touch(msc, ii, data + ii * 8 + 14);
+
+ /* When emulating three-button mode, it is important
+ * to have the current touch information before
+ * generating a click event.
+ */
+ x = (int)((data[3] << 24) | (data[2] << 16)) >> 16;
+ y = (int)((data[5] << 24) | (data[4] << 16)) >> 16;
+ clicks = data[1];
+
+ /* The following bits provide a device specific timestamp. They
+ * are unused here.
+ *
+ * ts = data[11] >> 6 | data[12] << 2 | data[13] << 10;
+ */
+ break;
case DOUBLE_REPORT_ID:
/* Sometimes the trackpad sends two touch reports in one
* packet.
return 0;
}
- if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
+ input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
magicmouse_emit_buttons(msc, clicks & 3);
input_report_rel(input, REL_X, x);
input_report_rel(input, REL_Y, y);
return 1;
}
+static int magicmouse_event(struct hid_device *hdev, struct hid_field *field,
+ struct hid_usage *usage, __s32 value)
+{
+ struct magicmouse_sc *msc = hid_get_drvdata(hdev);
+ if (msc->input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2 &&
+ field->report->id == MOUSE2_REPORT_ID) {
+ /*
+ * magic_mouse_raw_event has done all the work. Skip hidinput.
+ *
+ * Specifically, hidinput may modify BTN_LEFT and BTN_RIGHT,
+ * breaking emulate_3button.
+ */
+ return 1;
+ }
+ return 0;
+}
+
static int magicmouse_setup_input(struct input_dev *input, struct hid_device *hdev)
{
int error;
__set_bit(EV_KEY, input->evbit);
- if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
+ input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
__set_bit(BTN_LEFT, input->keybit);
__set_bit(BTN_RIGHT, input->keybit);
if (emulate_3button)
* the origin at the same position, and just uses the additive
* inverse of the reported Y.
*/
- if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE) {
+ if (input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE ||
+ input->id.product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
input_set_abs_params(input, ABS_MT_ORIENTATION, -31, 32, 1, 0);
input_set_abs_params(input, ABS_MT_POSITION_X,
MOUSE_MIN_X, MOUSE_MAX_X, 4, 0);
return 0;
}
-
-static int magicmouse_probe(struct hid_device *hdev,
- const struct hid_device_id *id)
+static int magicmouse_enable_multitouch(struct hid_device *hdev)
{
const u8 *feature;
const u8 feature_mt[] = { 0xD7, 0x01 };
+ const u8 feature_mt_mouse2[] = { 0xF1, 0x02, 0x01 };
const u8 feature_mt_trackpad2_usb[] = { 0x02, 0x01 };
const u8 feature_mt_trackpad2_bt[] = { 0xF1, 0x02, 0x01 };
u8 *buf;
+ int ret;
+ int feature_size;
+
+ if (hdev->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) {
+ if (hdev->vendor == BT_VENDOR_ID_APPLE) {
+ feature_size = sizeof(feature_mt_trackpad2_bt);
+ feature = feature_mt_trackpad2_bt;
+ } else { /* USB_VENDOR_ID_APPLE */
+ feature_size = sizeof(feature_mt_trackpad2_usb);
+ feature = feature_mt_trackpad2_usb;
+ }
+ } else if (hdev->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
+ feature_size = sizeof(feature_mt_mouse2);
+ feature = feature_mt_mouse2;
+ } else {
+ feature_size = sizeof(feature_mt);
+ feature = feature_mt;
+ }
+
+ buf = kmemdup(feature, feature_size, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = hid_hw_raw_request(hdev, buf[0], buf, feature_size,
+ HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
+ kfree(buf);
+ return ret;
+}
+
+static void magicmouse_enable_mt_work(struct work_struct *work)
+{
+ struct magicmouse_sc *msc =
+ container_of(work, struct magicmouse_sc, work.work);
+ int ret;
+
+ ret = magicmouse_enable_multitouch(msc->hdev);
+ if (ret < 0)
+ hid_err(msc->hdev, "unable to request touch data (%d)\n", ret);
+}
+
+static int magicmouse_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
struct magicmouse_sc *msc;
struct hid_report *report;
int ret;
- int feature_size;
if (id->vendor == USB_VENDOR_ID_APPLE &&
id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2 &&
}
msc->scroll_accel = SCROLL_ACCEL_DEFAULT;
+ msc->hdev = hdev;
+ INIT_DEFERRABLE_WORK(&msc->work, magicmouse_enable_mt_work);
msc->quirks = id->driver_data;
hid_set_drvdata(hdev, msc);
if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE)
report = hid_register_report(hdev, HID_INPUT_REPORT,
MOUSE_REPORT_ID, 0);
+ else if (id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2)
+ report = hid_register_report(hdev, HID_INPUT_REPORT,
+ MOUSE2_REPORT_ID, 0);
else if (id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) {
if (id->vendor == BT_VENDOR_ID_APPLE)
report = hid_register_report(hdev, HID_INPUT_REPORT,
}
report->size = 6;
- if (id->product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2) {
- if (id->vendor == BT_VENDOR_ID_APPLE) {
- feature_size = sizeof(feature_mt_trackpad2_bt);
- feature = feature_mt_trackpad2_bt;
- } else { /* USB_VENDOR_ID_APPLE */
- feature_size = sizeof(feature_mt_trackpad2_usb);
- feature = feature_mt_trackpad2_usb;
- }
- } else {
- feature_size = sizeof(feature_mt);
- feature = feature_mt;
- }
-
- buf = kmemdup(feature, feature_size, GFP_KERNEL);
- if (!buf) {
- ret = -ENOMEM;
- goto err_stop_hw;
- }
-
/*
* Some devices repond with 'invalid report id' when feature
* report switching it into multitouch mode is sent to it.
* but there seems to be no other way of switching the mode.
* Thus the super-ugly hacky success check below.
*/
- ret = hid_hw_raw_request(hdev, buf[0], buf, feature_size,
- HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
- kfree(buf);
- if (ret != -EIO && ret != feature_size) {
+ ret = magicmouse_enable_multitouch(hdev);
+ if (ret != -EIO && ret < 0) {
hid_err(hdev, "unable to request touch data (%d)\n", ret);
goto err_stop_hw;
}
+ if (ret == -EIO && id->product == USB_DEVICE_ID_APPLE_MAGICMOUSE2) {
+ schedule_delayed_work(&msc->work, msecs_to_jiffies(500));
+ }
return 0;
err_stop_hw:
return ret;
}
+static void magicmouse_remove(struct hid_device *hdev)
+{
+ struct magicmouse_sc *msc = hid_get_drvdata(hdev);
+ cancel_delayed_work_sync(&msc->work);
+ hid_hw_stop(hdev);
+}
+
static const struct hid_device_id magic_mice[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_MAGICMOUSE), .driver_data = 0 },
+ { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE,
+ USB_DEVICE_ID_APPLE_MAGICMOUSE2), .driver_data = 0 },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_MAGICTRACKPAD), .driver_data = 0 },
{ HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE,
.name = "magicmouse",
.id_table = magic_mice,
.probe = magicmouse_probe,
+ .remove = magicmouse_remove,
.raw_event = magicmouse_raw_event,
+ .event = magicmouse_event,
.input_mapping = magicmouse_input_mapping,
.input_configured = magicmouse_input_configured,
};
{
struct picolcd_data *data = hid_get_drvdata(hdev);
unsigned long flags;
- int ret = 0;
if (!data)
return 1;
if (report->id == REPORT_KEY_STATE) {
if (data->input_keys)
- ret = picolcd_raw_keypad(data, report, raw_data+1, size-1);
+ picolcd_raw_keypad(data, report, raw_data+1, size-1);
} else if (report->id == REPORT_IR_DATA) {
- ret = picolcd_raw_cir(data, report, raw_data+1, size-1);
+ picolcd_raw_cir(data, report, raw_data+1, size-1);
} else {
spin_lock_irqsave(&data->lock, flags);
/*
#include <linux/hid.h>
#include <linux/module.h>
+#include <linux/jiffies.h>
#define PLT_HID_1_0_PAGE 0xffa00000
#define PLT_HID_2_0_PAGE 0xffa20000
#define PLT_ALLOW_CONSUMER (field->application == HID_CP_CONSUMERCONTROL && \
(usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER)
+#define PLT_QUIRK_DOUBLE_VOLUME_KEYS BIT(0)
+
+#define PLT_DOUBLE_KEY_TIMEOUT 5 /* ms */
+
+struct plt_drv_data {
+ unsigned long device_type;
+ unsigned long last_volume_key_ts;
+ u32 quirks;
+};
+
static int plantronics_input_mapping(struct hid_device *hdev,
struct hid_input *hi,
struct hid_field *field,
unsigned long **bit, int *max)
{
unsigned short mapped_key;
- unsigned long plt_type = (unsigned long)hid_get_drvdata(hdev);
+ struct plt_drv_data *drv_data = hid_get_drvdata(hdev);
+ unsigned long plt_type = drv_data->device_type;
/* special case for PTT products */
if (field->application == HID_GD_JOYSTICK)
return 1;
}
+static int plantronics_event(struct hid_device *hdev, struct hid_field *field,
+ struct hid_usage *usage, __s32 value)
+{
+ struct plt_drv_data *drv_data = hid_get_drvdata(hdev);
+
+ if (drv_data->quirks & PLT_QUIRK_DOUBLE_VOLUME_KEYS) {
+ unsigned long prev_ts, cur_ts;
+
+ /* Usages are filtered in plantronics_usages. */
+
+ if (!value) /* Handle key presses only. */
+ return 0;
+
+ prev_ts = drv_data->last_volume_key_ts;
+ cur_ts = jiffies;
+ if (jiffies_to_msecs(cur_ts - prev_ts) <= PLT_DOUBLE_KEY_TIMEOUT)
+ return 1; /* Ignore the repeated key. */
+
+ drv_data->last_volume_key_ts = cur_ts;
+ }
+
+ return 0;
+}
+
static unsigned long plantronics_device_type(struct hid_device *hdev)
{
unsigned i, col_page;
static int plantronics_probe(struct hid_device *hdev,
const struct hid_device_id *id)
{
+ struct plt_drv_data *drv_data;
int ret;
+ drv_data = devm_kzalloc(&hdev->dev, sizeof(*drv_data), GFP_KERNEL);
+ if (!drv_data)
+ return -ENOMEM;
+
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err;
}
- hid_set_drvdata(hdev, (void *)plantronics_device_type(hdev));
+ drv_data->device_type = plantronics_device_type(hdev);
+ drv_data->quirks = id->driver_data;
+ drv_data->last_volume_key_ts = jiffies - msecs_to_jiffies(PLT_DOUBLE_KEY_TIMEOUT);
+
+ hid_set_drvdata(hdev, drv_data);
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT |
HID_CONNECT_HIDINPUT_FORCE | HID_CONNECT_HIDDEV_FORCE);
}
static const struct hid_device_id plantronics_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS,
+ USB_DEVICE_ID_PLANTRONICS_BLACKWIRE_3220_SERIES),
+ .driver_data = PLT_QUIRK_DOUBLE_VOLUME_KEYS },
{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) },
{ }
};
MODULE_DEVICE_TABLE(hid, plantronics_devices);
+static const struct hid_usage_id plantronics_usages[] = {
+ { HID_CP_VOLUMEUP, EV_KEY, HID_ANY_ID },
+ { HID_CP_VOLUMEDOWN, EV_KEY, HID_ANY_ID },
+ { HID_TERMINATOR, HID_TERMINATOR, HID_TERMINATOR }
+};
+
static struct hid_driver plantronics_driver = {
.name = "plantronics",
.id_table = plantronics_devices,
+ .usage_table = plantronics_usages,
.input_mapping = plantronics_input_mapping,
+ .event = plantronics_event,
.probe = plantronics_probe,
};
module_hid_driver(plantronics_driver);
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
- { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
- { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
#endif
+#if IS_ENABLED(CONFIG_HID_TMINIT)
+ { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65d) },
+#endif
#if IS_ENABLED(CONFIG_HID_TIVO)
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
if (!strncmp(name, "value", strlen("value"))) {
u32 report_id;
- int ret;
if (kstrtoint(buf, 0, &value) != 0)
return -EINVAL;
report_id = sensor_inst->fields[field_index].attribute.
report_id;
- ret = sensor_hub_set_feature(sensor_inst->hsdev, report_id,
- index, sizeof(value), &value);
+ sensor_hub_set_feature(sensor_inst->hsdev, report_id,
+ index, sizeof(value), &value);
} else
return -EINVAL;
/**
* struct sensor_hub_data - Hold a instance data for a HID hub device
- * @hsdev: Stored hid instance for current hub device.
* @mutex: Mutex to serialize synchronous request.
* @lock: Spin lock to protect pending request structure.
* @dyn_callback_list: Holds callback function
spinlock_t dyn_callback_lock;
struct mfd_cell *hid_sensor_hub_client_devs;
int hid_sensor_client_cnt;
- unsigned long quirks;
int ref_cnt;
};
* struct hid_sensor_hub_callbacks_list - Stores callback list
* @list: list head.
* @usage_id: usage id for a physical device.
+ * @hsdev: Stored hid instance for current hub device.
* @usage_callback: Stores registered callback functions.
* @priv: Private data for a physical device.
*/
}
hid_set_drvdata(hdev, sd);
- sd->quirks = id->driver_data;
spin_lock_init(&sd->lock);
spin_lock_init(&sd->dyn_callback_lock);
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * When connected to the machine, the Thrustmaster wheels appear as
+ * a «generic» hid gamepad called "Thrustmaster FFB Wheel".
+ *
+ * When in this mode not every functionality of the wheel, like the force feedback,
+ * are available. To enable all functionalities of a Thrustmaster wheel we have to send
+ * to it a specific USB CONTROL request with a code different for each wheel.
+ *
+ * This driver tries to understand which model of Thrustmaster wheel the generic
+ * "Thrustmaster FFB Wheel" really is and then sends the appropriate control code.
+ *
+ * Copyright (c) 2020-2021 Dario Pagani <dario.pagani.146+linuxk@gmail.com>
+ * Copyright (c) 2020-2021 Kim Kuparinen <kimi.h.kuparinen@gmail.com>
+ */
+#include <linux/hid.h>
+#include <linux/usb.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+/*
+ * These interrupts are used to prevent a nasty crash when initializing the
+ * T300RS. Used in thrustmaster_interrupts().
+ */
+static const u8 setup_0[] = { 0x42, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+static const u8 setup_1[] = { 0x0a, 0x04, 0x90, 0x03, 0x00, 0x00, 0x00, 0x00 };
+static const u8 setup_2[] = { 0x0a, 0x04, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00 };
+static const u8 setup_3[] = { 0x0a, 0x04, 0x12, 0x10, 0x00, 0x00, 0x00, 0x00 };
+static const u8 setup_4[] = { 0x0a, 0x04, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00 };
+static const u8 *const setup_arr[] = { setup_0, setup_1, setup_2, setup_3, setup_4 };
+static const unsigned int setup_arr_sizes[] = {
+ ARRAY_SIZE(setup_0),
+ ARRAY_SIZE(setup_1),
+ ARRAY_SIZE(setup_2),
+ ARRAY_SIZE(setup_3),
+ ARRAY_SIZE(setup_4)
+};
+/*
+ * This struct contains for each type of
+ * Thrustmaster wheel
+ *
+ * Note: The values are stored in the CPU
+ * endianness, the USB protocols always use
+ * little endian; the macro cpu_to_le[BIT]()
+ * must be used when preparing USB packets
+ * and vice-versa
+ */
+struct tm_wheel_info {
+ uint16_t wheel_type;
+
+ /*
+ * See when the USB control out packet is prepared...
+ * @TODO The TMX seems to require multiple control codes to switch.
+ */
+ uint16_t switch_value;
+
+ char const *const wheel_name;
+};
+
+/*
+ * Known wheels.
+ * Note: TMX does not work as it requires 2 control packets
+ */
+static const struct tm_wheel_info tm_wheels_infos[] = {
+ {0x0306, 0x0006, "Thrustmaster T150RS"},
+ {0x0206, 0x0005, "Thrustmaster T300RS"},
+ {0x0204, 0x0005, "Thrustmaster T300 Ferrari Alcantara Edition"},
+ {0x0002, 0x0002, "Thrustmaster T500RS"}
+ //{0x0407, 0x0001, "Thrustmaster TMX"}
+};
+
+static const uint8_t tm_wheels_infos_length = 4;
+
+/*
+ * This structs contains (in little endian) the response data
+ * of the wheel to the request 73
+ *
+ * A sufficient research to understand what each field does is not
+ * beign conducted yet. The position and meaning of fields are a
+ * just a very optimistic guess based on instinct....
+ */
+struct __packed tm_wheel_response
+{
+ /*
+ * Seems to be the type of packet
+ * - 0x0049 if is data.a (15 bytes)
+ * - 0x0047 if is data.b (7 bytes)
+ */
+ uint16_t type;
+
+ union {
+ struct __packed {
+ uint16_t field0;
+ uint16_t field1;
+ /*
+ * Seems to be the model code of the wheel
+ * Read table thrustmaster_wheels to values
+ */
+ uint16_t model;
+
+ uint16_t field2;
+ uint16_t field3;
+ uint16_t field4;
+ uint16_t field5;
+ } a;
+ struct __packed {
+ uint16_t field0;
+ uint16_t field1;
+ uint16_t model;
+ } b;
+ } data;
+};
+
+struct tm_wheel {
+ struct usb_device *usb_dev;
+ struct urb *urb;
+
+ struct usb_ctrlrequest *model_request;
+ struct tm_wheel_response *response;
+
+ struct usb_ctrlrequest *change_request;
+};
+
+/* The control packet to send to wheel */
+static const struct usb_ctrlrequest model_request = {
+ .bRequestType = 0xc1,
+ .bRequest = 73,
+ .wValue = 0,
+ .wIndex = 0,
+ .wLength = cpu_to_le16(0x0010)
+};
+
+static const struct usb_ctrlrequest change_request = {
+ .bRequestType = 0x41,
+ .bRequest = 83,
+ .wValue = 0, // Will be filled by the driver
+ .wIndex = 0,
+ .wLength = 0
+};
+
+/*
+ * On some setups initializing the T300RS crashes the kernel,
+ * these interrupts fix that particular issue. So far they haven't caused any
+ * adverse effects in other wheels.
+ */
+static void thrustmaster_interrupts(struct hid_device *hdev)
+{
+ int ret, trans, i, b_ep;
+ u8 *send_buf = kmalloc(256, GFP_KERNEL);
+ struct usb_host_endpoint *ep;
+ struct device *dev = &hdev->dev;
+ struct usb_interface *usbif = to_usb_interface(dev->parent);
+ struct usb_device *usbdev = interface_to_usbdev(usbif);
+
+ if (!send_buf) {
+ hid_err(hdev, "failed allocating send buffer\n");
+ return;
+ }
+
+ ep = &usbif->cur_altsetting->endpoint[1];
+ b_ep = ep->desc.bEndpointAddress;
+
+ for (i = 0; i < ARRAY_SIZE(setup_arr); ++i) {
+ memcpy(send_buf, setup_arr[i], setup_arr_sizes[i]);
+
+ ret = usb_interrupt_msg(usbdev,
+ usb_sndintpipe(usbdev, b_ep),
+ send_buf,
+ setup_arr_sizes[i],
+ &trans,
+ USB_CTRL_SET_TIMEOUT);
+
+ if (ret) {
+ hid_err(hdev, "setup data couldn't be sent\n");
+ return;
+ }
+ }
+
+ kfree(send_buf);
+}
+
+static void thrustmaster_change_handler(struct urb *urb)
+{
+ struct hid_device *hdev = urb->context;
+
+ // The wheel seems to kill himself before answering the host and therefore is violating the USB protocol...
+ if (urb->status == 0 || urb->status == -EPROTO || urb->status == -EPIPE)
+ hid_info(hdev, "Success?! The wheel should have been initialized!\n");
+ else
+ hid_warn(hdev, "URB to change wheel mode seems to have failed with error %d\n", urb->status);
+}
+
+/*
+ * Called by the USB subsystem when the wheel responses to our request
+ * to get [what it seems to be] the wheel's model.
+ *
+ * If the model id is recognized then we send an opportune USB CONTROL REQUEST
+ * to switch the wheel to its full capabilities
+ */
+static void thrustmaster_model_handler(struct urb *urb)
+{
+ struct hid_device *hdev = urb->context;
+ struct tm_wheel *tm_wheel = hid_get_drvdata(hdev);
+ uint16_t model = 0;
+ int i, ret;
+ const struct tm_wheel_info *twi = 0;
+
+ if (urb->status) {
+ hid_err(hdev, "URB to get model id failed with error %d\n", urb->status);
+ return;
+ }
+
+ if (tm_wheel->response->type == cpu_to_le16(0x49))
+ model = le16_to_cpu(tm_wheel->response->data.a.model);
+ else if (tm_wheel->response->type == cpu_to_le16(0x47))
+ model = le16_to_cpu(tm_wheel->response->data.b.model);
+ else {
+ hid_err(hdev, "Unknown packet type 0x%x, unable to proceed further with wheel init\n", tm_wheel->response->type);
+ return;
+ }
+
+ for (i = 0; i < tm_wheels_infos_length && !twi; i++)
+ if (tm_wheels_infos[i].wheel_type == model)
+ twi = tm_wheels_infos + i;
+
+ if (twi)
+ hid_info(hdev, "Wheel with model id 0x%x is a %s\n", model, twi->wheel_name);
+ else {
+ hid_err(hdev, "Unknown wheel's model id 0x%x, unable to proceed further with wheel init\n", model);
+ return;
+ }
+
+ tm_wheel->change_request->wValue = cpu_to_le16(twi->switch_value);
+ usb_fill_control_urb(
+ tm_wheel->urb,
+ tm_wheel->usb_dev,
+ usb_sndctrlpipe(tm_wheel->usb_dev, 0),
+ (char *)tm_wheel->change_request,
+ 0, 0, // We do not expect any response from the wheel
+ thrustmaster_change_handler,
+ hdev
+ );
+
+ ret = usb_submit_urb(tm_wheel->urb, GFP_ATOMIC);
+ if (ret)
+ hid_err(hdev, "Error %d while submitting the change URB. I am unable to initialize this wheel...\n", ret);
+}
+
+static void thrustmaster_remove(struct hid_device *hdev)
+{
+ struct tm_wheel *tm_wheel = hid_get_drvdata(hdev);
+
+ usb_kill_urb(tm_wheel->urb);
+
+ kfree(tm_wheel->response);
+ kfree(tm_wheel->model_request);
+ usb_free_urb(tm_wheel->urb);
+ kfree(tm_wheel);
+
+ hid_hw_stop(hdev);
+}
+
+/*
+ * Function called by HID when a hid Thrustmaster FFB wheel is connected to the host.
+ * This function starts the hid dev, tries to allocate the tm_wheel data structure and
+ * finally send an USB CONTROL REQUEST to the wheel to get [what it seems to be] its
+ * model type.
+ */
+static int thrustmaster_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ int ret = 0;
+ struct tm_wheel *tm_wheel = 0;
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ hid_err(hdev, "parse failed with error %d\n", ret);
+ goto error0;
+ }
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
+ if (ret) {
+ hid_err(hdev, "hw start failed with error %d\n", ret);
+ goto error0;
+ }
+
+ // Now we allocate the tm_wheel
+ tm_wheel = kzalloc(sizeof(struct tm_wheel), GFP_KERNEL);
+ if (!tm_wheel) {
+ ret = -ENOMEM;
+ goto error1;
+ }
+
+ tm_wheel->urb = usb_alloc_urb(0, GFP_ATOMIC);
+ if (!tm_wheel->urb) {
+ ret = -ENOMEM;
+ goto error2;
+ }
+
+ tm_wheel->model_request = kmemdup(&model_request,
+ sizeof(struct usb_ctrlrequest),
+ GFP_KERNEL);
+ if (!tm_wheel->model_request) {
+ ret = -ENOMEM;
+ goto error3;
+ }
+
+ tm_wheel->response = kzalloc(sizeof(struct tm_wheel_response), GFP_KERNEL);
+ if (!tm_wheel->response) {
+ ret = -ENOMEM;
+ goto error4;
+ }
+
+ tm_wheel->change_request = kzalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL);
+ if (!tm_wheel->model_request) {
+ ret = -ENOMEM;
+ goto error5;
+ }
+ memcpy(tm_wheel->change_request, &change_request, sizeof(struct usb_ctrlrequest));
+
+ tm_wheel->usb_dev = interface_to_usbdev(to_usb_interface(hdev->dev.parent));
+ hid_set_drvdata(hdev, tm_wheel);
+
+ thrustmaster_interrupts(hdev);
+
+ usb_fill_control_urb(
+ tm_wheel->urb,
+ tm_wheel->usb_dev,
+ usb_rcvctrlpipe(tm_wheel->usb_dev, 0),
+ (char *)tm_wheel->model_request,
+ tm_wheel->response,
+ sizeof(struct tm_wheel_response),
+ thrustmaster_model_handler,
+ hdev
+ );
+
+ ret = usb_submit_urb(tm_wheel->urb, GFP_ATOMIC);
+ if (ret)
+ hid_err(hdev, "Error %d while submitting the URB. I am unable to initialize this wheel...\n", ret);
+
+ return ret;
+
+error5: kfree(tm_wheel->response);
+error4: kfree(tm_wheel->model_request);
+error3: usb_free_urb(tm_wheel->urb);
+error2: kfree(tm_wheel);
+error1: hid_hw_stop(hdev);
+error0:
+ return ret;
+}
+
+static const struct hid_device_id thrustmaster_devices[] = {
+ { HID_USB_DEVICE(0x044f, 0xb65d)},
+ {}
+};
+
+MODULE_DEVICE_TABLE(hid, thrustmaster_devices);
+
+static struct hid_driver thrustmaster_driver = {
+ .name = "hid-thrustmaster",
+ .id_table = thrustmaster_devices,
+ .probe = thrustmaster_probe,
+ .remove = thrustmaster_remove,
+};
+
+module_hid_driver(thrustmaster_driver);
+
+MODULE_AUTHOR("Dario Pagani <dario.pagani.146+linuxk@gmail.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Driver to initialize some steering wheel joysticks from Thrustmaster");
+
#include <asm/unaligned.h>
/**
- * Convert a pen in-range reporting type to a string.
+ * uclogic_params_pen_inrange_to_str() - Convert a pen in-range reporting type
+ * to a string.
*
* @inrange: The in-range reporting type to convert.
*
}
/**
- * Get a replacement report descriptor for a tablet's interface.
+ * uclogic_params_get_desc() - Get a replacement report descriptor for a
+ * tablet's interface.
*
* @params: The parameters of a tablet interface to get report
* descriptor for. Cannot be NULL.
}
/**
- * uclogic_params_init() - initialize a Huion tablet interface and discover
+ * uclogic_params_huion_init() - initialize a Huion tablet interface and discover
* its parameters.
*
* @params: Parameters to fill in (to be cleaned with
const size_t uclogic_rdesc_pen_v2_template_size =
sizeof(uclogic_rdesc_pen_v2_template_arr);
-/**
+/*
* Expand to the contents of a generic buttonpad report descriptor.
*
* @_padding: Padding from the end of button bits at bit 44, until
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pm.h>
+#include <linux/uuid.h>
#include "i2c-hid.h"
struct i2c_hid_acpi {
struct i2chid_ops ops;
- struct i2c_client *client;
+ struct acpi_device *adev;
};
static const struct acpi_device_id i2c_hid_acpi_blacklist[] = {
{ },
};
-static int i2c_hid_acpi_get_descriptor(struct i2c_client *client)
+/* HID I²C Device: 3cdff6f7-4267-4555-ad05-b30a3d8938de */
+static guid_t i2c_hid_guid =
+ GUID_INIT(0x3CDFF6F7, 0x4267, 0x4555,
+ 0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE);
+
+static int i2c_hid_acpi_get_descriptor(struct acpi_device *adev)
{
- static guid_t i2c_hid_guid =
- GUID_INIT(0x3CDFF6F7, 0x4267, 0x4555,
- 0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE);
+ acpi_handle handle = acpi_device_handle(adev);
union acpi_object *obj;
- struct acpi_device *adev;
- acpi_handle handle;
u16 hid_descriptor_address;
- handle = ACPI_HANDLE(&client->dev);
- if (!handle || acpi_bus_get_device(handle, &adev)) {
- dev_err(&client->dev, "Error could not get ACPI device\n");
- return -ENODEV;
- }
-
if (acpi_match_device_ids(adev, i2c_hid_acpi_blacklist) == 0)
return -ENODEV;
obj = acpi_evaluate_dsm_typed(handle, &i2c_hid_guid, 1, 1, NULL,
ACPI_TYPE_INTEGER);
if (!obj) {
- dev_err(&client->dev, "Error _DSM call to get HID descriptor address failed\n");
+ acpi_handle_err(handle, "Error _DSM call to get HID descriptor address failed\n");
return -ENODEV;
}
static void i2c_hid_acpi_shutdown_tail(struct i2chid_ops *ops)
{
- struct i2c_hid_acpi *ihid_acpi =
- container_of(ops, struct i2c_hid_acpi, ops);
- struct device *dev = &ihid_acpi->client->dev;
- acpi_device_set_power(ACPI_COMPANION(dev), ACPI_STATE_D3_COLD);
+ struct i2c_hid_acpi *ihid_acpi = container_of(ops, struct i2c_hid_acpi, ops);
+
+ acpi_device_set_power(ihid_acpi->adev, ACPI_STATE_D3_COLD);
}
-static int i2c_hid_acpi_probe(struct i2c_client *client,
- const struct i2c_device_id *dev_id)
+static int i2c_hid_acpi_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct i2c_hid_acpi *ihid_acpi;
u16 hid_descriptor_address;
int ret;
+ adev = ACPI_COMPANION(dev);
+ if (!adev) {
+ dev_err(&client->dev, "Error could not get ACPI device\n");
+ return -ENODEV;
+ }
+
ihid_acpi = devm_kzalloc(&client->dev, sizeof(*ihid_acpi), GFP_KERNEL);
if (!ihid_acpi)
return -ENOMEM;
- ihid_acpi->client = client;
+ ihid_acpi->adev = adev;
ihid_acpi->ops.shutdown_tail = i2c_hid_acpi_shutdown_tail;
- ret = i2c_hid_acpi_get_descriptor(client);
+ ret = i2c_hid_acpi_get_descriptor(adev);
if (ret < 0)
return ret;
hid_descriptor_address = ret;
- adev = ACPI_COMPANION(dev);
- if (adev)
- acpi_device_fix_up_power(adev);
+ acpi_device_fix_up_power(adev);
if (acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0) {
device_set_wakeup_capable(dev, true);
.name = "i2c_hid_acpi",
.pm = &i2c_hid_core_pm,
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
- .acpi_match_table = ACPI_PTR(i2c_hid_acpi_match),
+ .acpi_match_table = i2c_hid_acpi_match,
},
- .probe = i2c_hid_acpi_probe,
+ .probe_new = i2c_hid_acpi_probe,
.remove = i2c_hid_core_remove,
.shutdown = i2c_hid_core_shutdown,
};
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0+
+menu "Surface System Aggregator Module HID support"
+ depends on SURFACE_AGGREGATOR
+ depends on INPUT
+
+config SURFACE_HID
+ tristate "HID transport driver for Surface System Aggregator Module"
+ depends on SURFACE_AGGREGATOR_REGISTRY
+ select SURFACE_HID_CORE
+ help
+ Driver to support integrated HID devices on newer Microsoft Surface
+ models.
+
+ This driver provides support for the HID transport protocol provided
+ by the Surface Aggregator Module (i.e. the embedded controller) on
+ 7th-generation Microsoft Surface devices, i.e. Surface Book 3 and
+ Surface Laptop 3. On those models, it is mainly used to connect the
+ integrated touchpad and keyboard.
+
+ Say M or Y here, if you want support for integrated HID devices, i.e.
+ integrated touchpad and keyboard, on 7th generation Microsoft Surface
+ models.
+
+config SURFACE_KBD
+ tristate "HID keyboard transport driver for Surface System Aggregator Module"
+ select SURFACE_HID_CORE
+ help
+ Driver to support HID keyboards on Surface Laptop 1 and 2 devices.
+
+ This driver provides support for the HID transport protocol provided
+ by the Surface Aggregator Module (i.e. the embedded controller) on
+ Microsoft Surface Laptops 1 and 2. It is used to connect the
+ integrated keyboard on those devices.
+
+ Say M or Y here, if you want support for the integrated keyboard on
+ Microsoft Surface Laptops 1 and 2.
+
+endmenu
+
+config SURFACE_HID_CORE
+ tristate
+ select HID
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Makefile - Surface System Aggregator Module (SSAM) HID transport driver.
+#
+obj-$(CONFIG_SURFACE_HID_CORE) += surface_hid_core.o
+obj-$(CONFIG_SURFACE_HID) += surface_hid.o
+obj-$(CONFIG_SURFACE_KBD) += surface_kbd.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Surface System Aggregator Module (SSAM) HID transport driver for the
+ * generic HID interface (HID/TC=0x15 subsystem). Provides support for
+ * integrated HID devices on Surface Laptop 3, Book 3, and later.
+ *
+ * Copyright (C) 2019-2021 Blaž Hrastnik <blaz@mxxn.io>,
+ * Maximilian Luz <luzmaximilian@gmail.com>
+ */
+
+#include <asm/unaligned.h>
+#include <linux/hid.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include <linux/surface_aggregator/controller.h>
+#include <linux/surface_aggregator/device.h>
+
+#include "surface_hid_core.h"
+
+
+/* -- SAM interface. -------------------------------------------------------- */
+
+struct surface_hid_buffer_slice {
+ __u8 entry;
+ __le32 offset;
+ __le32 length;
+ __u8 end;
+ __u8 data[];
+} __packed;
+
+static_assert(sizeof(struct surface_hid_buffer_slice) == 10);
+
+enum surface_hid_cid {
+ SURFACE_HID_CID_OUTPUT_REPORT = 0x01,
+ SURFACE_HID_CID_GET_FEATURE_REPORT = 0x02,
+ SURFACE_HID_CID_SET_FEATURE_REPORT = 0x03,
+ SURFACE_HID_CID_GET_DESCRIPTOR = 0x04,
+};
+
+static int ssam_hid_get_descriptor(struct surface_hid_device *shid, u8 entry, u8 *buf, size_t len)
+{
+ u8 buffer[sizeof(struct surface_hid_buffer_slice) + 0x76];
+ struct surface_hid_buffer_slice *slice;
+ struct ssam_request rqst;
+ struct ssam_response rsp;
+ u32 buffer_len, offset, length;
+ int status;
+
+ /*
+ * Note: The 0x76 above has been chosen because that's what's used by
+ * the Windows driver. Together with the header, this leads to a 128
+ * byte payload in total.
+ */
+
+ buffer_len = ARRAY_SIZE(buffer) - sizeof(struct surface_hid_buffer_slice);
+
+ rqst.target_category = shid->uid.category;
+ rqst.target_id = shid->uid.target;
+ rqst.command_id = SURFACE_HID_CID_GET_DESCRIPTOR;
+ rqst.instance_id = shid->uid.instance;
+ rqst.flags = SSAM_REQUEST_HAS_RESPONSE;
+ rqst.length = sizeof(struct surface_hid_buffer_slice);
+ rqst.payload = buffer;
+
+ rsp.capacity = ARRAY_SIZE(buffer);
+ rsp.pointer = buffer;
+
+ slice = (struct surface_hid_buffer_slice *)buffer;
+ slice->entry = entry;
+ slice->end = 0;
+
+ offset = 0;
+ length = buffer_len;
+
+ while (!slice->end && offset < len) {
+ put_unaligned_le32(offset, &slice->offset);
+ put_unaligned_le32(length, &slice->length);
+
+ rsp.length = 0;
+
+ status = ssam_retry(ssam_request_sync_onstack, shid->ctrl, &rqst, &rsp,
+ sizeof(*slice));
+ if (status)
+ return status;
+
+ offset = get_unaligned_le32(&slice->offset);
+ length = get_unaligned_le32(&slice->length);
+
+ /* Don't mess stuff up in case we receive garbage. */
+ if (length > buffer_len || offset > len)
+ return -EPROTO;
+
+ if (offset + length > len)
+ length = len - offset;
+
+ memcpy(buf + offset, &slice->data[0], length);
+
+ offset += length;
+ length = buffer_len;
+ }
+
+ if (offset != len) {
+ dev_err(shid->dev, "unexpected descriptor length: got %u, expected %zu\n",
+ offset, len);
+ return -EPROTO;
+ }
+
+ return 0;
+}
+
+static int ssam_hid_set_raw_report(struct surface_hid_device *shid, u8 rprt_id, bool feature,
+ u8 *buf, size_t len)
+{
+ struct ssam_request rqst;
+ u8 cid;
+
+ if (feature)
+ cid = SURFACE_HID_CID_SET_FEATURE_REPORT;
+ else
+ cid = SURFACE_HID_CID_OUTPUT_REPORT;
+
+ rqst.target_category = shid->uid.category;
+ rqst.target_id = shid->uid.target;
+ rqst.instance_id = shid->uid.instance;
+ rqst.command_id = cid;
+ rqst.flags = 0;
+ rqst.length = len;
+ rqst.payload = buf;
+
+ buf[0] = rprt_id;
+
+ return ssam_retry(ssam_request_sync, shid->ctrl, &rqst, NULL);
+}
+
+static int ssam_hid_get_raw_report(struct surface_hid_device *shid, u8 rprt_id, u8 *buf, size_t len)
+{
+ struct ssam_request rqst;
+ struct ssam_response rsp;
+
+ rqst.target_category = shid->uid.category;
+ rqst.target_id = shid->uid.target;
+ rqst.instance_id = shid->uid.instance;
+ rqst.command_id = SURFACE_HID_CID_GET_FEATURE_REPORT;
+ rqst.flags = 0;
+ rqst.length = sizeof(rprt_id);
+ rqst.payload = &rprt_id;
+
+ rsp.capacity = len;
+ rsp.length = 0;
+ rsp.pointer = buf;
+
+ return ssam_retry(ssam_request_sync_onstack, shid->ctrl, &rqst, &rsp, sizeof(rprt_id));
+}
+
+static u32 ssam_hid_event_fn(struct ssam_event_notifier *nf, const struct ssam_event *event)
+{
+ struct surface_hid_device *shid = container_of(nf, struct surface_hid_device, notif);
+
+ if (event->command_id != 0x00)
+ return 0;
+
+ hid_input_report(shid->hid, HID_INPUT_REPORT, (u8 *)&event->data[0], event->length, 0);
+ return SSAM_NOTIF_HANDLED;
+}
+
+
+/* -- Transport driver. ----------------------------------------------------- */
+
+static int shid_output_report(struct surface_hid_device *shid, u8 rprt_id, u8 *buf, size_t len)
+{
+ int status;
+
+ status = ssam_hid_set_raw_report(shid, rprt_id, false, buf, len);
+ return status >= 0 ? len : status;
+}
+
+static int shid_get_feature_report(struct surface_hid_device *shid, u8 rprt_id, u8 *buf, size_t len)
+{
+ int status;
+
+ status = ssam_hid_get_raw_report(shid, rprt_id, buf, len);
+ return status >= 0 ? len : status;
+}
+
+static int shid_set_feature_report(struct surface_hid_device *shid, u8 rprt_id, u8 *buf, size_t len)
+{
+ int status;
+
+ status = ssam_hid_set_raw_report(shid, rprt_id, true, buf, len);
+ return status >= 0 ? len : status;
+}
+
+
+/* -- Driver setup. --------------------------------------------------------- */
+
+static int surface_hid_probe(struct ssam_device *sdev)
+{
+ struct surface_hid_device *shid;
+
+ shid = devm_kzalloc(&sdev->dev, sizeof(*shid), GFP_KERNEL);
+ if (!shid)
+ return -ENOMEM;
+
+ shid->dev = &sdev->dev;
+ shid->ctrl = sdev->ctrl;
+ shid->uid = sdev->uid;
+
+ shid->notif.base.priority = 1;
+ shid->notif.base.fn = ssam_hid_event_fn;
+ shid->notif.event.reg = SSAM_EVENT_REGISTRY_REG;
+ shid->notif.event.id.target_category = sdev->uid.category;
+ shid->notif.event.id.instance = sdev->uid.instance;
+ shid->notif.event.mask = SSAM_EVENT_MASK_STRICT;
+ shid->notif.event.flags = 0;
+
+ shid->ops.get_descriptor = ssam_hid_get_descriptor;
+ shid->ops.output_report = shid_output_report;
+ shid->ops.get_feature_report = shid_get_feature_report;
+ shid->ops.set_feature_report = shid_set_feature_report;
+
+ ssam_device_set_drvdata(sdev, shid);
+ return surface_hid_device_add(shid);
+}
+
+static void surface_hid_remove(struct ssam_device *sdev)
+{
+ surface_hid_device_destroy(ssam_device_get_drvdata(sdev));
+}
+
+static const struct ssam_device_id surface_hid_match[] = {
+ { SSAM_SDEV(HID, 0x02, SSAM_ANY_IID, 0x00) },
+ { },
+};
+MODULE_DEVICE_TABLE(ssam, surface_hid_match);
+
+static struct ssam_device_driver surface_hid_driver = {
+ .probe = surface_hid_probe,
+ .remove = surface_hid_remove,
+ .match_table = surface_hid_match,
+ .driver = {
+ .name = "surface_hid",
+ .pm = &surface_hid_pm_ops,
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
+ },
+};
+module_ssam_device_driver(surface_hid_driver);
+
+MODULE_AUTHOR("Blaž Hrastnik <blaz@mxxn.io>");
+MODULE_AUTHOR("Maximilian Luz <luzmaximilian@gmail.com>");
+MODULE_DESCRIPTION("HID transport driver for Surface System Aggregator Module");
+MODULE_LICENSE("GPL");
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Common/core components for the Surface System Aggregator Module (SSAM) HID
+ * transport driver. Provides support for integrated HID devices on Microsoft
+ * Surface models.
+ *
+ * Copyright (C) 2019-2021 Maximilian Luz <luzmaximilian@gmail.com>
+ */
+
+#include <asm/unaligned.h>
+#include <linux/hid.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/usb/ch9.h>
+
+#include <linux/surface_aggregator/controller.h>
+
+#include "surface_hid_core.h"
+
+
+/* -- Device descriptor access. --------------------------------------------- */
+
+static int surface_hid_load_hid_descriptor(struct surface_hid_device *shid)
+{
+ int status;
+
+ status = shid->ops.get_descriptor(shid, SURFACE_HID_DESC_HID,
+ (u8 *)&shid->hid_desc, sizeof(shid->hid_desc));
+ if (status)
+ return status;
+
+ if (shid->hid_desc.desc_len != sizeof(shid->hid_desc)) {
+ dev_err(shid->dev, "unexpected HID descriptor length: got %u, expected %zu\n",
+ shid->hid_desc.desc_len, sizeof(shid->hid_desc));
+ return -EPROTO;
+ }
+
+ if (shid->hid_desc.desc_type != HID_DT_HID) {
+ dev_err(shid->dev, "unexpected HID descriptor type: got %#04x, expected %#04x\n",
+ shid->hid_desc.desc_type, HID_DT_HID);
+ return -EPROTO;
+ }
+
+ if (shid->hid_desc.num_descriptors != 1) {
+ dev_err(shid->dev, "unexpected number of descriptors: got %u, expected 1\n",
+ shid->hid_desc.num_descriptors);
+ return -EPROTO;
+ }
+
+ if (shid->hid_desc.report_desc_type != HID_DT_REPORT) {
+ dev_err(shid->dev, "unexpected report descriptor type: got %#04x, expected %#04x\n",
+ shid->hid_desc.report_desc_type, HID_DT_REPORT);
+ return -EPROTO;
+ }
+
+ return 0;
+}
+
+static int surface_hid_load_device_attributes(struct surface_hid_device *shid)
+{
+ int status;
+
+ status = shid->ops.get_descriptor(shid, SURFACE_HID_DESC_ATTRS,
+ (u8 *)&shid->attrs, sizeof(shid->attrs));
+ if (status)
+ return status;
+
+ if (get_unaligned_le32(&shid->attrs.length) != sizeof(shid->attrs)) {
+ dev_err(shid->dev, "unexpected attribute length: got %u, expected %zu\n",
+ get_unaligned_le32(&shid->attrs.length), sizeof(shid->attrs));
+ return -EPROTO;
+ }
+
+ return 0;
+}
+
+
+/* -- Transport driver (common). -------------------------------------------- */
+
+static int surface_hid_start(struct hid_device *hid)
+{
+ struct surface_hid_device *shid = hid->driver_data;
+
+ return ssam_notifier_register(shid->ctrl, &shid->notif);
+}
+
+static void surface_hid_stop(struct hid_device *hid)
+{
+ struct surface_hid_device *shid = hid->driver_data;
+
+ /* Note: This call will log errors for us, so ignore them here. */
+ ssam_notifier_unregister(shid->ctrl, &shid->notif);
+}
+
+static int surface_hid_open(struct hid_device *hid)
+{
+ return 0;
+}
+
+static void surface_hid_close(struct hid_device *hid)
+{
+}
+
+static int surface_hid_parse(struct hid_device *hid)
+{
+ struct surface_hid_device *shid = hid->driver_data;
+ size_t len = get_unaligned_le16(&shid->hid_desc.report_desc_len);
+ u8 *buf;
+ int status;
+
+ buf = kzalloc(len, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ status = shid->ops.get_descriptor(shid, SURFACE_HID_DESC_REPORT, buf, len);
+ if (!status)
+ status = hid_parse_report(hid, buf, len);
+
+ kfree(buf);
+ return status;
+}
+
+static int surface_hid_raw_request(struct hid_device *hid, unsigned char reportnum, u8 *buf,
+ size_t len, unsigned char rtype, int reqtype)
+{
+ struct surface_hid_device *shid = hid->driver_data;
+
+ if (rtype == HID_OUTPUT_REPORT && reqtype == HID_REQ_SET_REPORT)
+ return shid->ops.output_report(shid, reportnum, buf, len);
+
+ else if (rtype == HID_FEATURE_REPORT && reqtype == HID_REQ_GET_REPORT)
+ return shid->ops.get_feature_report(shid, reportnum, buf, len);
+
+ else if (rtype == HID_FEATURE_REPORT && reqtype == HID_REQ_SET_REPORT)
+ return shid->ops.set_feature_report(shid, reportnum, buf, len);
+
+ return -EIO;
+}
+
+static struct hid_ll_driver surface_hid_ll_driver = {
+ .start = surface_hid_start,
+ .stop = surface_hid_stop,
+ .open = surface_hid_open,
+ .close = surface_hid_close,
+ .parse = surface_hid_parse,
+ .raw_request = surface_hid_raw_request,
+};
+
+
+/* -- Common device setup. -------------------------------------------------- */
+
+int surface_hid_device_add(struct surface_hid_device *shid)
+{
+ int status;
+
+ status = surface_hid_load_hid_descriptor(shid);
+ if (status)
+ return status;
+
+ status = surface_hid_load_device_attributes(shid);
+ if (status)
+ return status;
+
+ shid->hid = hid_allocate_device();
+ if (IS_ERR(shid->hid))
+ return PTR_ERR(shid->hid);
+
+ shid->hid->dev.parent = shid->dev;
+ shid->hid->bus = BUS_HOST;
+ shid->hid->vendor = cpu_to_le16(shid->attrs.vendor);
+ shid->hid->product = cpu_to_le16(shid->attrs.product);
+ shid->hid->version = cpu_to_le16(shid->hid_desc.hid_version);
+ shid->hid->country = shid->hid_desc.country_code;
+
+ snprintf(shid->hid->name, sizeof(shid->hid->name), "Microsoft Surface %04X:%04X",
+ shid->hid->vendor, shid->hid->product);
+
+ strscpy(shid->hid->phys, dev_name(shid->dev), sizeof(shid->hid->phys));
+
+ shid->hid->driver_data = shid;
+ shid->hid->ll_driver = &surface_hid_ll_driver;
+
+ status = hid_add_device(shid->hid);
+ if (status)
+ hid_destroy_device(shid->hid);
+
+ return status;
+}
+EXPORT_SYMBOL_GPL(surface_hid_device_add);
+
+void surface_hid_device_destroy(struct surface_hid_device *shid)
+{
+ hid_destroy_device(shid->hid);
+}
+EXPORT_SYMBOL_GPL(surface_hid_device_destroy);
+
+
+/* -- PM ops. --------------------------------------------------------------- */
+
+#ifdef CONFIG_PM_SLEEP
+
+static int surface_hid_suspend(struct device *dev)
+{
+ struct surface_hid_device *d = dev_get_drvdata(dev);
+
+ if (d->hid->driver && d->hid->driver->suspend)
+ return d->hid->driver->suspend(d->hid, PMSG_SUSPEND);
+
+ return 0;
+}
+
+static int surface_hid_resume(struct device *dev)
+{
+ struct surface_hid_device *d = dev_get_drvdata(dev);
+
+ if (d->hid->driver && d->hid->driver->resume)
+ return d->hid->driver->resume(d->hid);
+
+ return 0;
+}
+
+static int surface_hid_freeze(struct device *dev)
+{
+ struct surface_hid_device *d = dev_get_drvdata(dev);
+
+ if (d->hid->driver && d->hid->driver->suspend)
+ return d->hid->driver->suspend(d->hid, PMSG_FREEZE);
+
+ return 0;
+}
+
+static int surface_hid_poweroff(struct device *dev)
+{
+ struct surface_hid_device *d = dev_get_drvdata(dev);
+
+ if (d->hid->driver && d->hid->driver->suspend)
+ return d->hid->driver->suspend(d->hid, PMSG_HIBERNATE);
+
+ return 0;
+}
+
+static int surface_hid_restore(struct device *dev)
+{
+ struct surface_hid_device *d = dev_get_drvdata(dev);
+
+ if (d->hid->driver && d->hid->driver->reset_resume)
+ return d->hid->driver->reset_resume(d->hid);
+
+ return 0;
+}
+
+const struct dev_pm_ops surface_hid_pm_ops = {
+ .freeze = surface_hid_freeze,
+ .thaw = surface_hid_resume,
+ .suspend = surface_hid_suspend,
+ .resume = surface_hid_resume,
+ .poweroff = surface_hid_poweroff,
+ .restore = surface_hid_restore,
+};
+EXPORT_SYMBOL_GPL(surface_hid_pm_ops);
+
+#else /* CONFIG_PM_SLEEP */
+
+const struct dev_pm_ops surface_hid_pm_ops = { };
+EXPORT_SYMBOL_GPL(surface_hid_pm_ops);
+
+#endif /* CONFIG_PM_SLEEP */
+
+MODULE_AUTHOR("Maximilian Luz <luzmaximilian@gmail.com>");
+MODULE_DESCRIPTION("HID transport driver core for Surface System Aggregator Module");
+MODULE_LICENSE("GPL");
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Common/core components for the Surface System Aggregator Module (SSAM) HID
+ * transport driver. Provides support for integrated HID devices on Microsoft
+ * Surface models.
+ *
+ * Copyright (C) 2019-2021 Maximilian Luz <luzmaximilian@gmail.com>
+ */
+
+#ifndef SURFACE_HID_CORE_H
+#define SURFACE_HID_CORE_H
+
+#include <linux/hid.h>
+#include <linux/pm.h>
+#include <linux/types.h>
+
+#include <linux/surface_aggregator/controller.h>
+#include <linux/surface_aggregator/device.h>
+
+enum surface_hid_descriptor_entry {
+ SURFACE_HID_DESC_HID = 0,
+ SURFACE_HID_DESC_REPORT = 1,
+ SURFACE_HID_DESC_ATTRS = 2,
+};
+
+struct surface_hid_descriptor {
+ __u8 desc_len; /* = 9 */
+ __u8 desc_type; /* = HID_DT_HID */
+ __le16 hid_version;
+ __u8 country_code;
+ __u8 num_descriptors; /* = 1 */
+
+ __u8 report_desc_type; /* = HID_DT_REPORT */
+ __le16 report_desc_len;
+} __packed;
+
+static_assert(sizeof(struct surface_hid_descriptor) == 9);
+
+struct surface_hid_attributes {
+ __le32 length;
+ __le16 vendor;
+ __le16 product;
+ __le16 version;
+ __u8 _unknown[22];
+} __packed;
+
+static_assert(sizeof(struct surface_hid_attributes) == 32);
+
+struct surface_hid_device;
+
+struct surface_hid_device_ops {
+ int (*get_descriptor)(struct surface_hid_device *shid, u8 entry, u8 *buf, size_t len);
+ int (*output_report)(struct surface_hid_device *shid, u8 rprt_id, u8 *buf, size_t len);
+ int (*get_feature_report)(struct surface_hid_device *shid, u8 rprt_id, u8 *buf, size_t len);
+ int (*set_feature_report)(struct surface_hid_device *shid, u8 rprt_id, u8 *buf, size_t len);
+};
+
+struct surface_hid_device {
+ struct device *dev;
+ struct ssam_controller *ctrl;
+ struct ssam_device_uid uid;
+
+ struct surface_hid_descriptor hid_desc;
+ struct surface_hid_attributes attrs;
+
+ struct ssam_event_notifier notif;
+ struct hid_device *hid;
+
+ struct surface_hid_device_ops ops;
+};
+
+int surface_hid_device_add(struct surface_hid_device *shid);
+void surface_hid_device_destroy(struct surface_hid_device *shid);
+
+extern const struct dev_pm_ops surface_hid_pm_ops;
+
+#endif /* SURFACE_HID_CORE_H */
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Surface System Aggregator Module (SSAM) HID transport driver for the legacy
+ * keyboard interface (KBD/TC=0x08 subsystem). Provides support for the
+ * integrated HID keyboard on Surface Laptops 1 and 2.
+ *
+ * Copyright (C) 2019-2021 Maximilian Luz <luzmaximilian@gmail.com>
+ */
+
+#include <asm/unaligned.h>
+#include <linux/hid.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+
+#include <linux/surface_aggregator/controller.h>
+
+#include "surface_hid_core.h"
+
+
+/* -- SAM interface (KBD). -------------------------------------------------- */
+
+#define KBD_FEATURE_REPORT_SIZE 7 /* 6 + report ID */
+
+enum surface_kbd_cid {
+ SURFACE_KBD_CID_GET_DESCRIPTOR = 0x00,
+ SURFACE_KBD_CID_SET_CAPSLOCK_LED = 0x01,
+ SURFACE_KBD_CID_EVT_INPUT_GENERIC = 0x03,
+ SURFACE_KBD_CID_EVT_INPUT_HOTKEYS = 0x04,
+ SURFACE_KBD_CID_GET_FEATURE_REPORT = 0x0b,
+};
+
+static int ssam_kbd_get_descriptor(struct surface_hid_device *shid, u8 entry, u8 *buf, size_t len)
+{
+ struct ssam_request rqst;
+ struct ssam_response rsp;
+ int status;
+
+ rqst.target_category = shid->uid.category;
+ rqst.target_id = shid->uid.target;
+ rqst.command_id = SURFACE_KBD_CID_GET_DESCRIPTOR;
+ rqst.instance_id = shid->uid.instance;
+ rqst.flags = SSAM_REQUEST_HAS_RESPONSE;
+ rqst.length = sizeof(entry);
+ rqst.payload = &entry;
+
+ rsp.capacity = len;
+ rsp.length = 0;
+ rsp.pointer = buf;
+
+ status = ssam_retry(ssam_request_sync_onstack, shid->ctrl, &rqst, &rsp, sizeof(entry));
+ if (status)
+ return status;
+
+ if (rsp.length != len) {
+ dev_err(shid->dev, "invalid descriptor length: got %zu, expected, %zu\n",
+ rsp.length, len);
+ return -EPROTO;
+ }
+
+ return 0;
+}
+
+static int ssam_kbd_set_caps_led(struct surface_hid_device *shid, bool value)
+{
+ struct ssam_request rqst;
+ u8 value_u8 = value;
+
+ rqst.target_category = shid->uid.category;
+ rqst.target_id = shid->uid.target;
+ rqst.command_id = SURFACE_KBD_CID_SET_CAPSLOCK_LED;
+ rqst.instance_id = shid->uid.instance;
+ rqst.flags = 0;
+ rqst.length = sizeof(value_u8);
+ rqst.payload = &value_u8;
+
+ return ssam_retry(ssam_request_sync_onstack, shid->ctrl, &rqst, NULL, sizeof(value_u8));
+}
+
+static int ssam_kbd_get_feature_report(struct surface_hid_device *shid, u8 *buf, size_t len)
+{
+ struct ssam_request rqst;
+ struct ssam_response rsp;
+ u8 payload = 0;
+ int status;
+
+ rqst.target_category = shid->uid.category;
+ rqst.target_id = shid->uid.target;
+ rqst.command_id = SURFACE_KBD_CID_GET_FEATURE_REPORT;
+ rqst.instance_id = shid->uid.instance;
+ rqst.flags = SSAM_REQUEST_HAS_RESPONSE;
+ rqst.length = sizeof(payload);
+ rqst.payload = &payload;
+
+ rsp.capacity = len;
+ rsp.length = 0;
+ rsp.pointer = buf;
+
+ status = ssam_retry(ssam_request_sync_onstack, shid->ctrl, &rqst, &rsp, sizeof(payload));
+ if (status)
+ return status;
+
+ if (rsp.length != len) {
+ dev_err(shid->dev, "invalid feature report length: got %zu, expected, %zu\n",
+ rsp.length, len);
+ return -EPROTO;
+ }
+
+ return 0;
+}
+
+static bool ssam_kbd_is_input_event(const struct ssam_event *event)
+{
+ if (event->command_id == SURFACE_KBD_CID_EVT_INPUT_GENERIC)
+ return true;
+
+ if (event->command_id == SURFACE_KBD_CID_EVT_INPUT_HOTKEYS)
+ return true;
+
+ return false;
+}
+
+static u32 ssam_kbd_event_fn(struct ssam_event_notifier *nf, const struct ssam_event *event)
+{
+ struct surface_hid_device *shid = container_of(nf, struct surface_hid_device, notif);
+
+ /*
+ * Check against device UID manually, as registry and device target
+ * category doesn't line up.
+ */
+
+ if (shid->uid.category != event->target_category)
+ return 0;
+
+ if (shid->uid.target != event->target_id)
+ return 0;
+
+ if (shid->uid.instance != event->instance_id)
+ return 0;
+
+ if (!ssam_kbd_is_input_event(event))
+ return 0;
+
+ hid_input_report(shid->hid, HID_INPUT_REPORT, (u8 *)&event->data[0], event->length, 0);
+ return SSAM_NOTIF_HANDLED;
+}
+
+
+/* -- Transport driver (KBD). ----------------------------------------------- */
+
+static int skbd_get_caps_led_value(struct hid_device *hid, u8 rprt_id, u8 *buf, size_t len)
+{
+ struct hid_field *field;
+ unsigned int offset, size;
+ int i;
+
+ /* Get LED field. */
+ field = hidinput_get_led_field(hid);
+ if (!field)
+ return -ENOENT;
+
+ /* Check if we got the correct report. */
+ if (len != hid_report_len(field->report))
+ return -ENOENT;
+
+ if (rprt_id != field->report->id)
+ return -ENOENT;
+
+ /* Get caps lock LED index. */
+ for (i = 0; i < field->report_count; i++)
+ if ((field->usage[i].hid & 0xffff) == 0x02)
+ break;
+
+ if (i == field->report_count)
+ return -ENOENT;
+
+ /* Extract value. */
+ size = field->report_size;
+ offset = field->report_offset + i * size;
+ return !!hid_field_extract(hid, buf + 1, size, offset);
+}
+
+static int skbd_output_report(struct surface_hid_device *shid, u8 rprt_id, u8 *buf, size_t len)
+{
+ int caps_led;
+ int status;
+
+ caps_led = skbd_get_caps_led_value(shid->hid, rprt_id, buf, len);
+ if (caps_led < 0)
+ return -EIO; /* Only caps LED output reports are supported. */
+
+ status = ssam_kbd_set_caps_led(shid, caps_led);
+ if (status < 0)
+ return status;
+
+ return len;
+}
+
+static int skbd_get_feature_report(struct surface_hid_device *shid, u8 rprt_id, u8 *buf, size_t len)
+{
+ u8 report[KBD_FEATURE_REPORT_SIZE];
+ int status;
+
+ /*
+ * The keyboard only has a single hard-coded read-only feature report
+ * of size KBD_FEATURE_REPORT_SIZE. Try to load it and compare its
+ * report ID against the requested one.
+ */
+
+ if (len < ARRAY_SIZE(report))
+ return -ENOSPC;
+
+ status = ssam_kbd_get_feature_report(shid, report, ARRAY_SIZE(report));
+ if (status < 0)
+ return status;
+
+ if (rprt_id != report[0])
+ return -ENOENT;
+
+ memcpy(buf, report, ARRAY_SIZE(report));
+ return len;
+}
+
+static int skbd_set_feature_report(struct surface_hid_device *shid, u8 rprt_id, u8 *buf, size_t len)
+{
+ /* Not supported. See skbd_get_feature_report() for details. */
+ return -EIO;
+}
+
+
+/* -- Driver setup. --------------------------------------------------------- */
+
+static int surface_kbd_probe(struct platform_device *pdev)
+{
+ struct ssam_controller *ctrl;
+ struct surface_hid_device *shid;
+
+ /* Add device link to EC. */
+ ctrl = ssam_client_bind(&pdev->dev);
+ if (IS_ERR(ctrl))
+ return PTR_ERR(ctrl) == -ENODEV ? -EPROBE_DEFER : PTR_ERR(ctrl);
+
+ shid = devm_kzalloc(&pdev->dev, sizeof(*shid), GFP_KERNEL);
+ if (!shid)
+ return -ENOMEM;
+
+ shid->dev = &pdev->dev;
+ shid->ctrl = ctrl;
+
+ shid->uid.domain = SSAM_DOMAIN_SERIALHUB;
+ shid->uid.category = SSAM_SSH_TC_KBD;
+ shid->uid.target = 2;
+ shid->uid.instance = 0;
+ shid->uid.function = 0;
+
+ shid->notif.base.priority = 1;
+ shid->notif.base.fn = ssam_kbd_event_fn;
+ shid->notif.event.reg = SSAM_EVENT_REGISTRY_SAM;
+ shid->notif.event.id.target_category = shid->uid.category;
+ shid->notif.event.id.instance = shid->uid.instance;
+ shid->notif.event.mask = SSAM_EVENT_MASK_NONE;
+ shid->notif.event.flags = 0;
+
+ shid->ops.get_descriptor = ssam_kbd_get_descriptor;
+ shid->ops.output_report = skbd_output_report;
+ shid->ops.get_feature_report = skbd_get_feature_report;
+ shid->ops.set_feature_report = skbd_set_feature_report;
+
+ platform_set_drvdata(pdev, shid);
+ return surface_hid_device_add(shid);
+}
+
+static int surface_kbd_remove(struct platform_device *pdev)
+{
+ surface_hid_device_destroy(platform_get_drvdata(pdev));
+ return 0;
+}
+
+static const struct acpi_device_id surface_kbd_match[] = {
+ { "MSHW0096" },
+ { },
+};
+MODULE_DEVICE_TABLE(acpi, surface_kbd_match);
+
+static struct platform_driver surface_kbd_driver = {
+ .probe = surface_kbd_probe,
+ .remove = surface_kbd_remove,
+ .driver = {
+ .name = "surface_keyboard",
+ .acpi_match_table = surface_kbd_match,
+ .pm = &surface_hid_pm_ops,
+ .probe_type = PROBE_PREFER_ASYNCHRONOUS,
+ },
+};
+module_platform_driver(surface_kbd_driver);
+
+MODULE_AUTHOR("Maximilian Luz <luzmaximilian@gmail.com>");
+MODULE_DESCRIPTION("HID legacy transport driver for Surface System Aggregator Module");
+MODULE_LICENSE("GPL");
HID_REQ_SET_REPORT);
}
-/**
+/*
* Play the effect with effect id @effect_id for @value times
*/
static int pidff_playback(struct input_dev *dev, int effect_id, int value)
return 0;
}
-/**
+/*
* Find the implemented effect types
*/
static int pidff_find_effects(struct pidff_device *pidff,
break;
if (i == hid->maxcollection)
- return -1;
+ return -EINVAL;
}
if (!(hiddev = kzalloc(sizeof(struct hiddev), GFP_KERNEL)))
- return -1;
+ return -ENOMEM;
init_waitqueue_head(&hiddev->wait);
INIT_LIST_HEAD(&hiddev->list);
hid_err(hid, "Not able to get a minor for this device\n");
hid->hiddev = NULL;
kfree(hiddev);
- return -1;
+ return retval;
}
/*
* new key is pressed or a key that was pressed is released.
* @led: URB for sending LEDs (e.g. numlock, ...)
* @newleds: data that will be sent with the @led URB representing which LEDs
- should be on
+ * should be on
* @name: Name of the keyboard. @dev's name field points to this buffer
* @phys: Physical path of the keyboard. @dev's phys field points to this
* buffer
unsigned char *leds;
dma_addr_t new_dma;
dma_addr_t leds_dma;
-
+
spinlock_t leds_lock;
bool led_urb_submitted;
}
*(kbd->leds) = kbd->newleds;
-
+
kbd->led->dev = kbd->usbdev;
if (usb_submit_urb(kbd->led, GFP_ATOMIC))
pr_err("usb_submit_urb(leds) failed\n");
else
kbd->led_urb_submitted = true;
-
+
spin_unlock_irqrestore(&kbd->leds_lock, flags);
-
+
return 0;
}
}
*(kbd->leds) = kbd->newleds;
-
+
kbd->led->dev = kbd->usbdev;
if (usb_submit_urb(kbd->led, GFP_ATOMIC)){
hid_err(urb->dev, "usb_submit_urb(leds) failed\n");
kbd->led_urb_submitted = false;
}
spin_unlock_irqrestore(&kbd->leds_lock, flags);
-
+
}
static int usb_kbd_open(struct input_dev *dev)
device_set_wakeup_enable(&dev->dev, 1);
return 0;
-fail2:
+fail2:
usb_kbd_free_mem(dev, kbd);
-fail1:
+fail1:
input_free_device(input_dev);
kfree(kbd);
return error;
return &group->leds[id];
}
-/**
+/*
* wacom_led_next: gives the next available led with a wacom trigger.
*
* returns the next available struct wacom_led which has its default trigger
usage->type = type;
usage->code = code;
- set_bit(type, input->evbit);
-
switch (type) {
case EV_ABS:
input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
hidinput_calc_abs_res(field, resolution_code));
break;
case EV_KEY:
- input_set_capability(input, EV_KEY, code);
- break;
case EV_MSC:
- input_set_capability(input, EV_MSC, code);
- break;
case EV_SW:
- input_set_capability(input, EV_SW, code);
+ input_set_capability(input, type, code);
break;
}
}
}
}
+static void wacom_set_barrel_switch3_usage(struct wacom_wac *wacom_wac)
+{
+ struct input_dev *input = wacom_wac->pen_input;
+ struct wacom_features *features = &wacom_wac->features;
+
+ if (!(features->quirks & WACOM_QUIRK_AESPEN) &&
+ wacom_wac->hid_data.barrelswitch &&
+ wacom_wac->hid_data.barrelswitch2 &&
+ wacom_wac->hid_data.serialhi)
+ input_set_capability(input, EV_KEY, BTN_STYLUS3);
+}
+
static void wacom_wac_pen_usage_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
wacom_map_usage(input, usage, field, EV_ABS, ABS_Z, 0);
break;
case HID_DG_ERASER:
+ input_set_capability(input, EV_KEY, BTN_TOOL_RUBBER);
+ wacom_map_usage(input, usage, field, EV_KEY, BTN_TOUCH, 0);
+ break;
case HID_DG_TIPSWITCH:
+ input_set_capability(input, EV_KEY, BTN_TOOL_PEN);
wacom_map_usage(input, usage, field, EV_KEY, BTN_TOUCH, 0);
break;
case HID_DG_BARRELSWITCH:
+ wacom_wac->hid_data.barrelswitch = true;
+ wacom_set_barrel_switch3_usage(wacom_wac);
wacom_map_usage(input, usage, field, EV_KEY, BTN_STYLUS, 0);
break;
case HID_DG_BARRELSWITCH2:
+ wacom_wac->hid_data.barrelswitch2 = true;
+ wacom_set_barrel_switch3_usage(wacom_wac);
wacom_map_usage(input, usage, field, EV_KEY, BTN_STYLUS2, 0);
break;
case HID_DG_TOOLSERIALNUMBER:
wacom_map_usage(input, usage, field, EV_KEY, BTN_TOOL_PEN, 0);
break;
case WACOM_HID_WD_SERIALHI:
+ wacom_wac->hid_data.serialhi = true;
+ wacom_set_barrel_switch3_usage(wacom_wac);
wacom_map_usage(input, usage, field, EV_ABS, ABS_MISC, 0);
-
- if (!(features->quirks & WACOM_QUIRK_AESPEN)) {
- set_bit(EV_KEY, input->evbit);
- input_set_capability(input, EV_KEY, BTN_TOOL_PEN);
- input_set_capability(input, EV_KEY, BTN_TOOL_RUBBER);
- input_set_capability(input, EV_KEY, BTN_TOOL_BRUSH);
- input_set_capability(input, EV_KEY, BTN_TOOL_PENCIL);
- input_set_capability(input, EV_KEY, BTN_TOOL_AIRBRUSH);
- if (!(features->device_type & WACOM_DEVICETYPE_DIRECT)) {
- input_set_capability(input, EV_KEY, BTN_TOOL_MOUSE);
- input_set_capability(input, EV_KEY, BTN_TOOL_LENS);
- }
- }
break;
case WACOM_HID_WD_FINGERWHEEL:
+ input_set_capability(input, EV_KEY, BTN_TOOL_AIRBRUSH);
wacom_map_usage(input, usage, field, EV_ABS, ABS_WHEEL, 0);
break;
}
else
__set_bit(INPUT_PROP_POINTER, input_dev->propbit);
- if (features->type == HID_GENERIC) {
- /* setup has already been done; apply otherwise-undetectible quirks */
- input_set_capability(input_dev, EV_KEY, BTN_STYLUS3);
+ if (features->type == HID_GENERIC)
+ /* setup has already been done */
return 0;
- }
input_dev->evbit[0] |= BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
__set_bit(BTN_TOUCH, input_dev->keybit);
bool tipswitch;
bool barrelswitch;
bool barrelswitch2;
+ bool serialhi;
int x;
int y;
int pressure;
#define HID_UP_CONSUMER 0x000c0000
#define HID_UP_DIGITIZER 0x000d0000
#define HID_UP_PID 0x000f0000
+#define HID_UP_BATTERY 0x00850000
#define HID_UP_HPVENDOR 0xff7f0000
#define HID_UP_HPVENDOR2 0xff010000
#define HID_UP_MSVENDOR 0xff000000
#define HID_CP_SELECTION 0x000c0080
#define HID_CP_MEDIASELECTION 0x000c0087
#define HID_CP_SELECTDISC 0x000c00ba
+#define HID_CP_VOLUMEUP 0x000c00e9
+#define HID_CP_VOLUMEDOWN 0x000c00ea
#define HID_CP_PLAYBACKSPEED 0x000c00f1
#define HID_CP_PROXIMITY 0x000c0109
#define HID_CP_SPEAKERSYSTEM 0x000c0160
#define HID_DG_TOOLSERIALNUMBER 0x000d005b
#define HID_DG_LATENCYMODE 0x000d0060
+#define HID_BAT_ABSOLUTESTATEOFCHARGE 0x00850065
+
#define HID_VD_ASUS_CUSTOM_MEDIA_KEYS 0xff310076
/*
* HID report types --- Ouch! HID spec says 1 2 3!
projects / platform / kernel / linux-rpi.git / commitdiff