diff options
| -rw-r--r-- | drivers/hid/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/hid/hid-asus.c | 299 | ||||
| -rw-r--r-- | drivers/hid/hid-core.c | 1 | ||||
| -rw-r--r-- | drivers/hid/hid-ids.h | 1 |
4 files changed, 296 insertions, 7 deletions
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index cd4599c0523b..f8f251c20e2d 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -138,7 +138,7 @@ config HID_ASUS tristate "Asus" depends on I2C_HID ---help--- - Support for Asus notebook built-in keyboard via i2c. + Support for Asus notebook built-in keyboard and touchpad via i2c. Supported devices: - EeeBook X205TA diff --git a/drivers/hid/hid-asus.c b/drivers/hid/hid-asus.c index 7a811ec4f2e1..d40ed9fdf68d 100644 --- a/drivers/hid/hid-asus.c +++ b/drivers/hid/hid-asus.c @@ -11,6 +11,12 @@ * This module based on hid-ortek by * Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com> * Copyright (c) 2011 Jiri Kosina + * + * This module has been updated to add support for Asus i2c touchpad. + * + * Copyright (c) 2016 Brendan McGrath <redmcg@redmandi.dyndns.org> + * Copyright (c) 2016 Victor Vlasenko <victor.vlasenko@sysgears.com> + * Copyright (c) 2016 Frederik Wenigwieser <frederik.wenigwieser@gmail.com> */ /* @@ -20,16 +26,287 @@ * any later version. */ -#include <linux/device.h> #include <linux/hid.h> #include <linux/module.h> +#include <linux/input/mt.h> #include "hid-ids.h" +MODULE_AUTHOR("Yusuke Fujimaki <usk.fujimaki@gmail.com>"); +MODULE_AUTHOR("Brendan McGrath <redmcg@redmandi.dyndns.org>"); +MODULE_AUTHOR("Victor Vlasenko <victor.vlasenko@sysgears.com>"); +MODULE_AUTHOR("Frederik Wenigwieser <frederik.wenigwieser@gmail.com>"); +MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad"); + +#define FEATURE_REPORT_ID 0x0d +#define INPUT_REPORT_ID 0x5d + +#define INPUT_REPORT_SIZE 28 + +#define MAX_CONTACTS 5 + +#define MAX_X 2794 +#define MAX_Y 1758 +#define MAX_TOUCH_MAJOR 8 +#define MAX_PRESSURE 128 + +#define CONTACT_DATA_SIZE 5 + +#define BTN_LEFT_MASK 0x01 +#define CONTACT_TOOL_TYPE_MASK 0x80 +#define CONTACT_X_MSB_MASK 0xf0 +#define CONTACT_Y_MSB_MASK 0x0f +#define CONTACT_TOUCH_MAJOR_MASK 0x07 +#define CONTACT_PRESSURE_MASK 0x7f + +#define QUIRK_FIX_NOTEBOOK_REPORT BIT(0) +#define QUIRK_NO_INIT_REPORTS BIT(1) +#define QUIRK_SKIP_INPUT_MAPPING BIT(2) +#define QUIRK_IS_MULTITOUCH BIT(3) + +#define NOTEBOOK_QUIRKS QUIRK_FIX_NOTEBOOK_REPORT +#define TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \ + QUIRK_SKIP_INPUT_MAPPING | \ + QUIRK_IS_MULTITOUCH) + +#define TRKID_SGN ((TRKID_MAX + 1) >> 1) + +struct asus_drvdata { + unsigned long quirks; + struct input_dev *input; +}; + +static void asus_report_contact_down(struct input_dev *input, + int toolType, u8 *data) +{ + int touch_major, pressure; + int x = (data[0] & CONTACT_X_MSB_MASK) << 4 | data[1]; + int y = MAX_Y - ((data[0] & CONTACT_Y_MSB_MASK) << 8 | data[2]); + + if (toolType == MT_TOOL_PALM) { + touch_major = MAX_TOUCH_MAJOR; + pressure = MAX_PRESSURE; + } else { + touch_major = (data[3] >> 4) & CONTACT_TOUCH_MAJOR_MASK; + pressure = data[4] & CONTACT_PRESSURE_MASK; + } + + input_report_abs(input, ABS_MT_POSITION_X, x); + input_report_abs(input, ABS_MT_POSITION_Y, y); + input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major); + input_report_abs(input, ABS_MT_PRESSURE, pressure); +} + +/* Required for Synaptics Palm Detection */ +static void asus_report_tool_width(struct input_dev *input) +{ + struct input_mt *mt = input->mt; + struct input_mt_slot *oldest; + int oldid, count, i; + + oldest = NULL; + oldid = mt->trkid; + count = 0; + + for (i = 0; i < mt->num_slots; ++i) { + struct input_mt_slot *ps = &mt->slots[i]; + int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID); + + if (id < 0) + continue; + if ((id - oldid) & TRKID_SGN) { + oldest = ps; + oldid = id; + } + count++; + } + + if (oldest) { + input_report_abs(input, ABS_TOOL_WIDTH, + input_mt_get_value(oldest, ABS_MT_TOUCH_MAJOR)); + } +} + +static void asus_report_input(struct input_dev *input, u8 *data) +{ + int i; + u8 *contactData = data + 2; + + for (i = 0; i < MAX_CONTACTS; i++) { + bool down = !!(data[1] & BIT(i+3)); + int toolType = contactData[3] & CONTACT_TOOL_TYPE_MASK ? + MT_TOOL_PALM : MT_TOOL_FINGER; + + input_mt_slot(input, i); + input_mt_report_slot_state(input, toolType, down); + + if (down) { + asus_report_contact_down(input, toolType, contactData); + contactData += CONTACT_DATA_SIZE; + } + } + + input_report_key(input, BTN_LEFT, data[1] & BTN_LEFT_MASK); + asus_report_tool_width(input); + + input_mt_sync_frame(input); + input_sync(input); +} + +static int asus_raw_event(struct hid_device *hdev, + struct hid_report *report, u8 *data, int size) +{ + struct asus_drvdata *drvdata = hid_get_drvdata(hdev); + + if (drvdata->quirks & QUIRK_IS_MULTITOUCH && + data[0] == INPUT_REPORT_ID && + size == INPUT_REPORT_SIZE) { + asus_report_input(drvdata->input, data); + return 1; + } + + return 0; +} + +static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi) +{ + struct asus_drvdata *drvdata = hid_get_drvdata(hdev); + + if (drvdata->quirks & QUIRK_IS_MULTITOUCH) { + int ret; + struct input_dev *input = hi->input; + + input_set_abs_params(input, ABS_MT_POSITION_X, 0, MAX_X, 0, 0); + input_set_abs_params(input, ABS_MT_POSITION_Y, 0, MAX_Y, 0, 0); + input_set_abs_params(input, ABS_TOOL_WIDTH, 0, MAX_TOUCH_MAJOR, 0, 0); + input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, MAX_TOUCH_MAJOR, 0, 0); + input_set_abs_params(input, ABS_MT_PRESSURE, 0, MAX_PRESSURE, 0, 0); + + __set_bit(BTN_LEFT, input->keybit); + __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); + + ret = input_mt_init_slots(input, MAX_CONTACTS, INPUT_MT_POINTER); + + if (ret) { + hid_err(hdev, "Asus input mt init slots failed: %d\n", ret); + return ret; + } + + drvdata->input = input; + } + + return 0; +} + +static int asus_input_mapping(struct hid_device *hdev, + struct hid_input *hi, struct hid_field *field, + struct hid_usage *usage, unsigned long **bit, + int *max) +{ + struct asus_drvdata *drvdata = hid_get_drvdata(hdev); + + if (drvdata->quirks & QUIRK_SKIP_INPUT_MAPPING) { + /* Don't map anything from the HID report. + * We do it all manually in asus_input_configured + */ + return -1; + } + + return 0; +} + +static int asus_start_multitouch(struct hid_device *hdev) +{ + int ret; + const unsigned char buf[] = { FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00 }; + unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL); + + if (!dmabuf) { + ret = -ENOMEM; + hid_err(hdev, "Asus failed to alloc dma buf: %d\n", ret); + return ret; + } + + ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, sizeof(buf), + HID_FEATURE_REPORT, HID_REQ_SET_REPORT); + + kfree(dmabuf); + + if (ret != sizeof(buf)) { + hid_err(hdev, "Asus failed to start multitouch: %d\n", ret); + return ret; + } + + return 0; +} + +static int __maybe_unused asus_reset_resume(struct hid_device *hdev) +{ + struct asus_drvdata *drvdata = hid_get_drvdata(hdev); + + if (drvdata->quirks & QUIRK_IS_MULTITOUCH) + return asus_start_multitouch(hdev); + + return 0; +} + +static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + int ret; + struct asus_drvdata *drvdata; + + drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL); + if (drvdata == NULL) { + hid_err(hdev, "Can't alloc Asus descriptor\n"); + return -ENOMEM; + } + + hid_set_drvdata(hdev, drvdata); + + drvdata->quirks = id->driver_data; + + if (drvdata->quirks & QUIRK_NO_INIT_REPORTS) + hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; + + ret = hid_parse(hdev); + if (ret) { + hid_err(hdev, "Asus hid parse failed: %d\n", ret); + return ret; + } + + ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); + if (ret) { + hid_err(hdev, "Asus hw start failed: %d\n", ret); + return ret; + } + + if (!drvdata->input) { + hid_err(hdev, "Asus input not registered\n"); + ret = -ENOMEM; + goto err_stop_hw; + } + + drvdata->input->name = "Asus TouchPad"; + + if (drvdata->quirks & QUIRK_IS_MULTITOUCH) { + ret = asus_start_multitouch(hdev); + if (ret) + goto err_stop_hw; + } + + return 0; +err_stop_hw: + hid_hw_stop(hdev); + return ret; +} + static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) { - if (*rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x65) { + struct asus_drvdata *drvdata = hid_get_drvdata(hdev); + + if (drvdata->quirks & QUIRK_FIX_NOTEBOOK_REPORT && + *rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x65) { hid_info(hdev, "Fixing up Asus notebook report descriptor\n"); rdesc[55] = 0xdd; } @@ -37,15 +314,25 @@ static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc, } static const struct hid_device_id asus_devices[] = { - { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_NOTEBOOK_KEYBOARD) }, + { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, + USB_DEVICE_ID_ASUSTEK_NOTEBOOK_KEYBOARD), NOTEBOOK_QUIRKS}, + { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, + USB_DEVICE_ID_ASUSTEK_TOUCHPAD), TOUCHPAD_QUIRKS }, { } }; MODULE_DEVICE_TABLE(hid, asus_devices); static struct hid_driver asus_driver = { - .name = "asus", - .id_table = asus_devices, - .report_fixup = asus_report_fixup + .name = "asus", + .id_table = asus_devices, + .report_fixup = asus_report_fixup, + .probe = asus_probe, + .input_mapping = asus_input_mapping, + .input_configured = asus_input_configured, +#ifdef CONFIG_PM + .reset_resume = asus_reset_resume, +#endif + .raw_event = asus_raw_event }; module_hid_driver(asus_driver); diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 2b89c701076f..689cd9cf5025 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1857,6 +1857,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_NOTEBOOK_KEYBOARD) }, + { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_TOUCHPAD) }, { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) }, { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) }, { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 575aa65436d1..b531bd408f93 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -171,6 +171,7 @@ #define USB_DEVICE_ID_ASUSTEK_LCM 0x1726 #define USB_DEVICE_ID_ASUSTEK_LCM2 0x175b #define USB_DEVICE_ID_ASUSTEK_NOTEBOOK_KEYBOARD 0x8585 +#define USB_DEVICE_ID_ASUSTEK_TOUCHPAD 0x0101 #define USB_VENDOR_ID_ATEN 0x0557 #define USB_DEVICE_ID_ATEN_UC100KM 0x2004 |