diff options
Diffstat (limited to 'common/i2c_hid_touchpad.c')
| -rw-r--r-- | common/i2c_hid_touchpad.c | 524 |
1 files changed, 251 insertions, 273 deletions
diff --git a/common/i2c_hid_touchpad.c b/common/i2c_hid_touchpad.c index 29122f83d6..02261d8fa4 100644 --- a/common/i2c_hid_touchpad.c +++ b/common/i2c_hid_touchpad.c @@ -1,4 +1,4 @@ -/* Copyright 2020 The Chromium OS Authors. All rights reserved. +/* Copyright 2020 The ChromiumOS Authors * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ @@ -10,23 +10,23 @@ #include "util.h" /* 2 bytes for length + 1 byte for report ID */ -#define I2C_HID_HEADER_SIZE 3 +#define I2C_HID_HEADER_SIZE 3 /* Report ID */ -#define REPORT_ID_TOUCH 0x01 -#define REPORT_ID_MOUSE 0x02 -#define REPORT_ID_DEVICE_CAPS 0x0A -#define REPORT_ID_DEVICE_CERT 0x0B -#define REPORT_ID_INPUT_MODE 0x0C -#define REPORT_ID_REPORTING 0x0D +#define REPORT_ID_TOUCH 0x01 +#define REPORT_ID_MOUSE 0x02 +#define REPORT_ID_DEVICE_CAPS 0x0A +#define REPORT_ID_DEVICE_CERT 0x0B +#define REPORT_ID_INPUT_MODE 0x0C +#define REPORT_ID_REPORTING 0x0D -#define INPUT_MODE_MOUSE 0x00 -#define INPUT_MODE_TOUCH 0x03 +#define INPUT_MODE_MOUSE 0x00 +#define INPUT_MODE_TOUCH 0x03 /* VID/PID/FW version */ -#if !defined(I2C_HID_TOUCHPAD_VENDOR_ID) || \ - !defined(I2C_HID_TOUCHPAD_PRODUCT_ID) || \ - !defined(I2C_HID_TOUCHPAD_FW_VERSION) +#if !defined(I2C_HID_TOUCHPAD_VENDOR_ID) || \ + !defined(I2C_HID_TOUCHPAD_PRODUCT_ID) || \ + !defined(I2C_HID_TOUCHPAD_FW_VERSION) #error "Must define touchpad VID/PID/FW version" #endif /* @@ -34,10 +34,9 @@ * * Physical dimensions are in the unit of mms. */ -#if !defined(I2C_HID_TOUCHPAD_MAX_X) || \ - !defined(I2C_HID_TOUCHPAD_MAX_Y) || \ - !defined(I2C_HID_TOUCHPAD_MAX_PHYSICAL_X) || \ - !defined(I2C_HID_TOUCHPAD_MAX_PHYSICAL_Y) +#if !defined(I2C_HID_TOUCHPAD_MAX_X) || !defined(I2C_HID_TOUCHPAD_MAX_Y) || \ + !defined(I2C_HID_TOUCHPAD_MAX_PHYSICAL_X) || \ + !defined(I2C_HID_TOUCHPAD_MAX_PHYSICAL_Y) #error "Must define finger maximum X/Y and physical dimensions" #endif /* @@ -49,9 +48,9 @@ * different data ranges. It is therefore recommended for the user to check the * device's spec and set these values manually. */ -#if !defined(I2C_HID_TOUCHPAD_MAX_WIDTH) || \ - !defined(I2C_HID_TOUCHPAD_MAX_HEIGHT) || \ - !defined(I2C_HID_TOUCHPAD_MAX_PRESSURE) +#if !defined(I2C_HID_TOUCHPAD_MAX_WIDTH) || \ + !defined(I2C_HID_TOUCHPAD_MAX_HEIGHT) || \ + !defined(I2C_HID_TOUCHPAD_MAX_PRESSURE) #error "Must define finger maximum width/height/pressure" #endif /* @@ -67,42 +66,37 @@ * This is a bit similar to the mouse CPI and is used by mouse reports only. */ #if !defined(I2C_HID_TOUCHPAD_MOUSE_SCALE_X) || \ - !defined(I2C_HID_TOUCHPAD_MOUSE_SCALE_Y) + !defined(I2C_HID_TOUCHPAD_MOUSE_SCALE_Y) #error "Must define mouse horizontal/vertical scaling factors" #endif /* Helper bit-op macros */ -#define N_BITS(n) \ -( \ - (n) < (1 << 1) ? 1 : \ - (n) < (1 << 2) ? 2 : \ - (n) < (1 << 3) ? 3 : \ - (n) < (1 << 4) ? 4 : \ - (n) < (1 << 5) ? 5 : \ - (n) < (1 << 6) ? 6 : \ - (n) < (1 << 7) ? 7 : \ - (n) < (1 << 8) ? 8 : \ - (n) < (1 << 9) ? 9 : \ - (n) < (1 << 10) ? 10 : \ - (n) < (1 << 11) ? 11 : \ - (n) < (1 << 12) ? 12 : \ - (n) < (1 << 13) ? 13 : \ - (n) < (1 << 14) ? 14 : \ - (n) < (1 << 15) ? 15 : \ - 16 \ -) +#define N_BITS(n) \ + ((n) < (1 << 1) ? 1 : \ + (n) < (1 << 2) ? 2 : \ + (n) < (1 << 3) ? 3 : \ + (n) < (1 << 4) ? 4 : \ + (n) < (1 << 5) ? 5 : \ + (n) < (1 << 6) ? 6 : \ + (n) < (1 << 7) ? 7 : \ + (n) < (1 << 8) ? 8 : \ + (n) < (1 << 9) ? 9 : \ + (n) < (1 << 10) ? 10 : \ + (n) < (1 << 11) ? 11 : \ + (n) < (1 << 12) ? 12 : \ + (n) < (1 << 13) ? 13 : \ + (n) < (1 << 14) ? 14 : \ + (n) < (1 << 15) ? 15 : \ + 16) /* We would need to pad some bits at the end of each finger struct to match * the allocation unit's boundary so the array indexing may work correctly. */ -#define N_VAR_BITS \ -( \ - N_BITS(I2C_HID_TOUCHPAD_MAX_X) + \ - N_BITS(I2C_HID_TOUCHPAD_MAX_Y) + \ - N_BITS(I2C_HID_TOUCHPAD_MAX_WIDTH) + \ - N_BITS(I2C_HID_TOUCHPAD_MAX_HEIGHT) + \ - N_BITS(I2C_HID_TOUCHPAD_MAX_PRESSURE) + \ - N_BITS(I2C_HID_TOUCHPAD_MAX_ORIENTATION) \ -) +#define N_VAR_BITS \ + (N_BITS(I2C_HID_TOUCHPAD_MAX_X) + N_BITS(I2C_HID_TOUCHPAD_MAX_Y) + \ + N_BITS(I2C_HID_TOUCHPAD_MAX_WIDTH) + \ + N_BITS(I2C_HID_TOUCHPAD_MAX_HEIGHT) + \ + N_BITS(I2C_HID_TOUCHPAD_MAX_PRESSURE) + \ + N_BITS(I2C_HID_TOUCHPAD_MAX_ORIENTATION)) #define N_PADDING_BITS ((DIV_ROUND_UP(N_VAR_BITS, 8) * 8) - N_VAR_BITS) #define N_BITS_ORIENTATION \ (N_BITS(I2C_HID_TOUCHPAD_MAX_ORIENTATION) + N_PADDING_BITS) @@ -121,45 +115,45 @@ struct finger { * identify unintended contacts or palms but is up to the OS * explanation. */ - uint8_t confidence:1; + uint8_t confidence : 1; /* * Whether a finger is touching the surface (leaving/left finger gets * 0). */ - uint8_t tip:1; + uint8_t tip : 1; /* * Whether a finger is within the sensor range. For example, hovering * fingers would have tip=0 and inrange=1. */ - uint8_t inrange:1; + uint8_t inrange : 1; /* * Contact id. This is like slot numbers in Linux MT-B. */ - uint8_t id:5; - uint16_t x:N_BITS(I2C_HID_TOUCHPAD_MAX_X); - uint16_t y:N_BITS(I2C_HID_TOUCHPAD_MAX_Y); - uint16_t width:N_BITS(I2C_HID_TOUCHPAD_MAX_WIDTH); - uint16_t height:N_BITS(I2C_HID_TOUCHPAD_MAX_HEIGHT); - uint16_t pressure:N_BITS(I2C_HID_TOUCHPAD_MAX_PRESSURE); - uint16_t orientation:N_BITS_ORIENTATION; + uint8_t id : 5; + uint16_t x : N_BITS(I2C_HID_TOUCHPAD_MAX_X); + uint16_t y : N_BITS(I2C_HID_TOUCHPAD_MAX_Y); + uint16_t width : N_BITS(I2C_HID_TOUCHPAD_MAX_WIDTH); + uint16_t height : N_BITS(I2C_HID_TOUCHPAD_MAX_HEIGHT); + uint16_t pressure : N_BITS(I2C_HID_TOUCHPAD_MAX_PRESSURE); + uint16_t orientation : N_BITS_ORIENTATION; } __packed; struct touch_report { - uint8_t button:1; - uint8_t count:7; + uint8_t button : 1; + uint8_t count : 7; uint16_t timestamp; struct finger finger[I2C_HID_TOUCHPAD_MAX_FINGERS]; } __packed; struct mouse_report { - uint8_t button1:1; + uint8_t button1 : 1; /* Windows expects at least two button usages in a mouse report. Many * touchpads on the Chromebook are a single clickable surface, so * button2 isn't used. That said, we may later report a button2 event if * necessary. */ - uint8_t button2:1; - uint8_t unused:6; + uint8_t button2 : 1; + uint8_t unused : 6; int8_t x; int8_t y; } __packed; @@ -173,231 +167,215 @@ struct mouse_report { */ static const uint8_t report_desc[] = { /* Mouse Collection */ - 0x05, 0x01, /* Usage Page (Generic Desktop) */ - 0x09, 0x02, /* Usage (Mouse) */ - 0xA1, 0x01, /* Collection (Application) */ - 0x85, REPORT_ID_MOUSE, /* Report ID (Mouse) */ - 0x09, 0x01, /* Usage (Pointer) */ - 0xA1, 0x00, /* Collection (Physical) */ - 0x05, 0x09, /* Usage Page (Button) */ - 0x19, 0x01, /* Usage Minimum (Button 1) */ - 0x29, 0x02, /* Usage Maximum (Button 2) */ - 0x15, 0x00, /* Logical Minimum (0) */ - 0x25, 0x01, /* Logical Maximum (1) */ - 0x75, 0x01, /* Report Size (1) */ - 0x95, 0x02, /* Report Count (2) */ - 0x81, 0x02, /* Input (Data,Var,Abs) */ - 0x95, 0x06, /* Report Count (6) */ - 0x81, 0x03, /* Input (Cnst,Var,Abs) */ - 0x05, 0x01, /* Usage Page (Generic Desktop) */ - 0x09, 0x30, /* Usage (X) */ - 0x09, 0x31, /* Usage (Y) */ - 0x15, 0x81, /* Logical Minimum (-127) */ - 0x25, 0x7F, /* Logical Maximum (127) */ - 0x75, 0x08, /* Report Size (8) */ - 0x95, 0x02, /* Report Count (2) */ - 0x81, 0x06, /* Input (Data,Var,Rel) */ - 0xC0, /* End Collection */ - 0xC0, /* End Collection */ + 0x05, 0x01, /* Usage Page (Generic Desktop) */ + 0x09, 0x02, /* Usage (Mouse) */ + 0xA1, 0x01, /* Collection (Application) */ + 0x85, REPORT_ID_MOUSE, /* Report ID (Mouse) */ + 0x09, 0x01, /* Usage (Pointer) */ + 0xA1, 0x00, /* Collection (Physical) */ + 0x05, 0x09, /* Usage Page (Button) */ + 0x19, 0x01, /* Usage Minimum (Button 1) */ + 0x29, 0x02, /* Usage Maximum (Button 2) */ + 0x15, 0x00, /* Logical Minimum (0) */ + 0x25, 0x01, /* Logical Maximum (1) */ + 0x75, 0x01, /* Report Size (1) */ + 0x95, 0x02, /* Report Count (2) */ + 0x81, 0x02, /* Input (Data,Var,Abs) */ + 0x95, 0x06, /* Report Count (6) */ + 0x81, 0x03, /* Input (Cnst,Var,Abs) */ + 0x05, 0x01, /* Usage Page (Generic Desktop) */ + 0x09, 0x30, /* Usage (X) */ + 0x09, 0x31, /* Usage (Y) */ + 0x15, 0x81, /* Logical Minimum (-127) */ + 0x25, 0x7F, /* Logical Maximum (127) */ + 0x75, 0x08, /* Report Size (8) */ + 0x95, 0x02, /* Report Count (2) */ + 0x81, 0x06, /* Input (Data,Var,Rel) */ + 0xC0, /* End Collection */ + 0xC0, /* End Collection */ /* Touchpad Collection */ - 0x05, 0x0D, /* Usage Page (Digitizer) */ - 0x09, 0x05, /* Usage (Touch Pad) */ - 0xA1, 0x01, /* Collection (Application) */ - 0x85, REPORT_ID_TOUCH, /* Report ID (Touch) */ + 0x05, 0x0D, /* Usage Page (Digitizer) */ + 0x09, 0x05, /* Usage (Touch Pad) */ + 0xA1, 0x01, /* Collection (Application) */ + 0x85, REPORT_ID_TOUCH, /* Report ID (Touch) */ /* Button */ - 0x05, 0x09, /* Usage Page (Button) */ - 0x19, 0x01, /* Usage Minimum (0x01) */ - 0x29, 0x01, /* Usage Maximum (0x01) */ - 0x15, 0x00, /* Logical Minimum (0) */ - 0x25, 0x01, /* Logical Maximum (1) */ - 0x75, 0x01, /* Report Size (1) */ - 0x95, 0x01, /* Report Count (1) */ - 0x81, 0x02, /* Input (Data,Var,Abs) */ + 0x05, 0x09, /* Usage Page (Button) */ + 0x19, 0x01, /* Usage Minimum (0x01) */ + 0x29, 0x01, /* Usage Maximum (0x01) */ + 0x15, 0x00, /* Logical Minimum (0) */ + 0x25, 0x01, /* Logical Maximum (1) */ + 0x75, 0x01, /* Report Size (1) */ + 0x95, 0x01, /* Report Count (1) */ + 0x81, 0x02, /* Input (Data,Var,Abs) */ /* Contact count */ - 0x05, 0x0D, /* Usage Page (Digitizer) */ - 0x09, 0x54, /* Usage (Contact count) */ - 0x25, I2C_HID_TOUCHPAD_MAX_FINGERS, /* Logical Max. (MAX_FINGERS) */ - 0x75, 0x07, /* Report Size (7) */ - 0x95, 0x01, /* Report Count (1) */ - 0x81, 0x02, /* Input (Data,Var,Abs) */ + 0x05, 0x0D, /* Usage Page (Digitizer) */ + 0x09, 0x54, /* Usage (Contact count) */ + 0x25, I2C_HID_TOUCHPAD_MAX_FINGERS, /* Logical Max. (MAX_FINGERS) */ + 0x75, 0x07, /* Report Size (7) */ + 0x95, 0x01, /* Report Count (1) */ + 0x81, 0x02, /* Input (Data,Var,Abs) */ /* Scan time */ - 0x55, 0x0C, /* Unit Exponent (-4) */ - 0x66, 0x01, 0x10, /* Unit (Seconds) */ - 0x47, 0xFF, 0xFF, 0x00, 0x00, /* Physical Maximum (65535) */ - 0x27, 0xFF, 0xFF, 0x00, 0x00, /* Logical Maximum (65535) */ - 0x75, 0x10, /* Report Size (16) */ - 0x95, 0x01, /* Report Count (1) */ - 0x05, 0x0D, /* Usage Page (Digitizers) */ - 0x09, 0x56, /* Usage (Scan Time) */ - 0x81, 0x02, /* Input (Data,Var,Abs) */ - -#define FINGER(FINGER_NUMBER) \ - /* Finger FINGER_NUMBER */ \ - 0x05, 0x0D, /* Usage Page (Digitizer) */ \ - 0x09, 0x22, /* Usage (Finger) */ \ - 0xA1, 0x02, /* Collection (Logical) */ \ - 0x09, 0x47, /* Usage (Confidence) */ \ - 0x09, 0x42, /* Usage (Tip Switch) */ \ - 0x09, 0x32, /* Usage (In Range) */ \ - 0x15, 0x00, /* Logical Minimum (0) */ \ - 0x25, 0x01, /* Logical Maximum (1) */ \ - 0x75, 0x01, /* Report Size (1) */ \ - 0x95, 0x03, /* Report Count (3) */ \ - 0x81, 0x02, /* Input (Data,Var,Abs) */ \ - 0x09, 0x51, /* Usage (Contact identifier) */ \ - 0x25, 0x1F, /* Logical Maximum (31) */ \ - 0x75, 0x05, /* Report Size (5) */ \ - 0x95, 0x01, /* Report Count (1) */ \ - 0x81, 0x02, /* Input (Data,Var,Abs) */ \ - 0x05, 0x01, /* Usage Page (Generic Desktop) */ \ - 0x09, 0x30, /* Usage (X) */ \ - 0x55, 0x0E, /* Unit Exponent (-2) */ \ - 0x65, 0x11, /* Unit (SI Linear, Length: cm) */ \ - 0x35, 0x00, /* Physical Minimum (0) */ \ - 0x46, I2C_HID_TOUCHPAD_MAX_PHYSICAL_X&0xff, \ - I2C_HID_TOUCHPAD_MAX_PHYSICAL_X>>8, \ - /* Physical Maximum */ \ - 0x26, I2C_HID_TOUCHPAD_MAX_X&0xff, I2C_HID_TOUCHPAD_MAX_X>>8, \ - /* Logical Maximum */ \ - 0x75, N_BITS(I2C_HID_TOUCHPAD_MAX_X), \ - /* Report Size */ \ - 0x81, 0x02, /* Input (Data,Var,Abs) */ \ - 0x09, 0x31, /* Usage (Y) */ \ - 0x46, I2C_HID_TOUCHPAD_MAX_PHYSICAL_Y&0xff, \ - I2C_HID_TOUCHPAD_MAX_PHYSICAL_Y>>8, \ - /* Physical Maximum */ \ - 0x26, I2C_HID_TOUCHPAD_MAX_Y&0xff, I2C_HID_TOUCHPAD_MAX_Y>>8, \ - /* Logical Maximum */ \ - 0x75, N_BITS(I2C_HID_TOUCHPAD_MAX_Y), \ - /* Report Size */ \ - 0x81, 0x02, /* Input (Data,Var,Abs) */ \ - 0x05, 0x0D, /* Usage Page (Digitizer) */ \ - 0x09, 0x48, /* Usage (Width) */ \ - 0x26, I2C_HID_TOUCHPAD_MAX_WIDTH&0xff, I2C_HID_TOUCHPAD_MAX_WIDTH>>8, \ - /* Logical Maximum */ \ - 0x75, N_BITS(I2C_HID_TOUCHPAD_MAX_WIDTH), \ - /* Report Size */ \ - 0x81, 0x02, /* Input (Data,Var,Abs) */ \ - 0x09, 0x49, /* Usage (Height) */ \ - 0x26, I2C_HID_TOUCHPAD_MAX_HEIGHT&0xff, I2C_HID_TOUCHPAD_MAX_HEIGHT>>8,\ - /* Logical Maximum */ \ - 0x75, N_BITS(I2C_HID_TOUCHPAD_MAX_HEIGHT), \ - /* Report Size */ \ - 0x81, 0x02, /* Input (Data,Var,Abs) */ \ - 0x09, 0x30, /* Usage (Tip pressure) */ \ - 0x26, I2C_HID_TOUCHPAD_MAX_PRESSURE&0xff, \ - I2C_HID_TOUCHPAD_MAX_PRESSURE>>8, \ - /* Logical Maximum */ \ - 0x75, N_BITS(I2C_HID_TOUCHPAD_MAX_PRESSURE), \ - /* Report Size */ \ - 0x81, 0x02, /* Input (Data,Var,Abs) */ \ - 0x09, 0x3f, /* Usage (Azimuth Orientation) */ \ - 0x16, 0x00, 0x00, /* Logical Minimum (0) */ \ - 0x26, I2C_HID_TOUCHPAD_MAX_ORIENTATION&0xff, \ - I2C_HID_TOUCHPAD_MAX_ORIENTATION>>8, \ - /* Logical Maximum */ \ - 0x75, N_BITS_ORIENTATION, /* Report Size */ \ - 0x81, 0x02, /* Input (Data,Var,Abs) */ \ - 0xC0, /* End Collection */ - - FINGER(1) - FINGER(2) - FINGER(3) - FINGER(4) - FINGER(5) + 0x55, 0x0C, /* Unit Exponent (-4) */ + 0x66, 0x01, 0x10, /* Unit (Seconds) */ + 0x47, 0xFF, 0xFF, 0x00, 0x00, /* Physical Maximum (65535) */ + 0x27, 0xFF, 0xFF, 0x00, 0x00, /* Logical Maximum (65535) */ + 0x75, 0x10, /* Report Size (16) */ + 0x95, 0x01, /* Report Count (1) */ + 0x05, 0x0D, /* Usage Page (Digitizers) */ + 0x09, 0x56, /* Usage (Scan Time) */ + 0x81, 0x02, /* Input (Data,Var,Abs) */ + +#define FINGER(FINGER_NUMBER) \ + /* Finger FINGER_NUMBER */ \ + 0x05, 0x0D, /* Usage Page (Digitizer) */ \ + 0x09, 0x22, /* Usage (Finger) */ \ + 0xA1, 0x02, /* Collection (Logical) */ \ + 0x09, 0x47, /* Usage (Confidence) */ \ + 0x09, 0x42, /* Usage (Tip Switch) */ \ + 0x09, 0x32, /* Usage (In Range) */ \ + 0x15, 0x00, /* Logical Minimum (0) */ \ + 0x25, 0x01, /* Logical Maximum (1) */ \ + 0x75, 0x01, /* Report Size (1) */ \ + 0x95, 0x03, /* Report Count (3) */ \ + 0x81, 0x02, /* Input (Data,Var,Abs) */ \ + 0x09, 0x51, /* Usage (Contact identifier) */ \ + 0x25, 0x1F, /* Logical Maximum (31) */ \ + 0x75, 0x05, /* Report Size (5) */ \ + 0x95, 0x01, /* Report Count (1) */ \ + 0x81, 0x02, /* Input (Data,Var,Abs) */ \ + 0x05, 0x01, /* Usage Page (Generic Desktop) */ \ + 0x09, 0x30, /* Usage (X) */ \ + 0x55, 0x0E, /* Unit Exponent (-2) */ \ + 0x65, 0x11, /* Unit (SI Linear, Length: cm) */ \ + 0x35, 0x00, /* Physical Minimum (0) */ \ + 0x46, I2C_HID_TOUCHPAD_MAX_PHYSICAL_X & 0xff, \ + I2C_HID_TOUCHPAD_MAX_PHYSICAL_X >> 8, /* Physical Maximum \ + */ \ + 0x26, I2C_HID_TOUCHPAD_MAX_X & 0xff, \ + I2C_HID_TOUCHPAD_MAX_X >> 8, /* Logical Maximum */ \ + 0x75, N_BITS(I2C_HID_TOUCHPAD_MAX_X), /* Report Size */ \ + 0x81, 0x02, /* Input (Data,Var,Abs) */ \ + 0x09, 0x31, /* Usage (Y) */ \ + 0x46, I2C_HID_TOUCHPAD_MAX_PHYSICAL_Y & 0xff, \ + I2C_HID_TOUCHPAD_MAX_PHYSICAL_Y >> 8, /* Physical Maximum \ + */ \ + 0x26, I2C_HID_TOUCHPAD_MAX_Y & 0xff, \ + I2C_HID_TOUCHPAD_MAX_Y >> 8, /* Logical Maximum */ \ + 0x75, N_BITS(I2C_HID_TOUCHPAD_MAX_Y), /* Report Size */ \ + 0x81, 0x02, /* Input (Data,Var,Abs) */ \ + 0x05, 0x0D, /* Usage Page (Digitizer) */ \ + 0x09, 0x48, /* Usage (Width) */ \ + 0x26, I2C_HID_TOUCHPAD_MAX_WIDTH & 0xff, \ + I2C_HID_TOUCHPAD_MAX_WIDTH >> 8, /* Logical Maximum */ \ + 0x75, N_BITS(I2C_HID_TOUCHPAD_MAX_WIDTH), /* Report Size \ + */ \ + 0x81, 0x02, /* Input (Data,Var,Abs) */ \ + 0x09, 0x49, /* Usage (Height) */ \ + 0x26, I2C_HID_TOUCHPAD_MAX_HEIGHT & 0xff, \ + I2C_HID_TOUCHPAD_MAX_HEIGHT >> 8, /* Logical Maximum */ \ + 0x75, N_BITS(I2C_HID_TOUCHPAD_MAX_HEIGHT), /* Report Size \ + */ \ + 0x81, 0x02, /* Input (Data,Var,Abs) */ \ + 0x09, 0x30, /* Usage (Tip pressure) */ \ + 0x26, I2C_HID_TOUCHPAD_MAX_PRESSURE & 0xff, \ + I2C_HID_TOUCHPAD_MAX_PRESSURE >> 8, /* Logical Maximum */ \ + 0x75, N_BITS(I2C_HID_TOUCHPAD_MAX_PRESSURE), /* Report \ + Size */ \ + 0x81, 0x02, /* Input (Data,Var,Abs) */ \ + 0x09, 0x3f, /* Usage (Azimuth Orientation) */ \ + 0x16, 0x00, 0x00, /* Logical Minimum (0) */ \ + 0x26, I2C_HID_TOUCHPAD_MAX_ORIENTATION & 0xff, \ + I2C_HID_TOUCHPAD_MAX_ORIENTATION >> 8, /* Logical Maximum \ + */ \ + 0x75, N_BITS_ORIENTATION, /* Report Size */ \ + 0x81, 0x02, /* Input (Data,Var,Abs) */ \ + 0xC0, /* End Collection */ + + FINGER(1) FINGER(2) FINGER(3) FINGER(4) FINGER(5) #undef FINGER - 0x05, 0x0D, /* Usage Page (Digitizer) */ - 0x85, REPORT_ID_DEVICE_CAPS, /* Report ID (Device Capabilities) */ - 0x09, 0x55, /* Usage (Contact Count Maximum) */ - 0x09, 0x59, /* Usage (Pad Type) */ - 0x75, 0x08, /* Report Size (8) */ - 0x95, 0x02, /* Report Count (2) */ - 0x25, 0x0F, /* Logical Maximum (15) */ - 0xB1, 0x02, /* Feature (Data,Var,Abs) */ - 0x06, 0x00, 0xFF, /* Usage Page (Vendor Defined) */ - 0x85, REPORT_ID_DEVICE_CERT, /* Report ID (Device Certification) */ - 0x09, 0xC5, /* Usage (Vendor Usage 0xC5) */ - 0x15, 0x00, /* Logical Minimum (0) */ - 0x26, 0xFF, 0x00, /* Logical Maximum (255) */ - 0x75, 0x08, /* Report Size (8) */ - 0x96, 0x00, 0x01, /* Report Count (256) */ - 0xB1, 0x02, /* Feature (Data,Var,Abs) */ - 0xC0, /* End Collection */ + 0x05, + 0x0D, /* Usage Page (Digitizer) */ + 0x85, REPORT_ID_DEVICE_CAPS, /* Report ID (Device Capabilities) */ + 0x09, 0x55, /* Usage (Contact Count Maximum) */ + 0x09, 0x59, /* Usage (Pad Type) */ + 0x75, 0x08, /* Report Size (8) */ + 0x95, 0x02, /* Report Count (2) */ + 0x25, 0x0F, /* Logical Maximum (15) */ + 0xB1, 0x02, /* Feature (Data,Var,Abs) */ + 0x06, 0x00, 0xFF, /* Usage Page (Vendor Defined) */ + 0x85, REPORT_ID_DEVICE_CERT, /* Report ID (Device Certification) */ + 0x09, 0xC5, /* Usage (Vendor Usage 0xC5) */ + 0x15, 0x00, /* Logical Minimum (0) */ + 0x26, 0xFF, 0x00, /* Logical Maximum (255) */ + 0x75, 0x08, /* Report Size (8) */ + 0x96, 0x00, 0x01, /* Report Count (256) */ + 0xB1, 0x02, /* Feature (Data,Var,Abs) */ + 0xC0, /* End Collection */ /* Configuration Collection */ - 0x05, 0x0D, /* Usage Page (Digitizer) */ - 0x09, 0x0E, /* Usage (Configuration) */ - 0xA1, 0x01, /* Collection (Application) */ - 0x85, REPORT_ID_INPUT_MODE, /* Report ID (Input Mode) */ - 0x09, 0x22, /* Usage (Finger) */ - 0xA1, 0x02, /* Collection (Logical) */ - 0x09, 0x52, /* Usage (Input Mode) */ - 0x15, 0x00, /* Logical Minimum (0) */ - 0x25, 0x0F, /* Logical Maximum (15) */ - 0x75, 0x08, /* Report Size (8) */ - 0x95, 0x01, /* Report Count (1) */ - 0xB1, 0x02, /* Feature (Data,Var,Abs) */ - 0xC0, /* End Collection */ - 0x09, 0x22, /* Usage (Finger) */ - 0xA1, 0x00, /* Collection (Physical) */ - 0x85, REPORT_ID_REPORTING, /* Report ID (Selective Reporting)*/ - 0x09, 0x57, /* Usage (Surface Switch) */ - 0x09, 0x58, /* Usage (Button Switch) */ - 0x75, 0x04, /* Report Size (4) */ - 0x95, 0x02, /* Report Count (2) */ - 0x25, 0x01, /* Logical Maximum (1) */ - 0xB1, 0x02, /* Feature (Data,Var,Abs) */ - 0xC0, /* End Collection */ - 0xC0, /* End Collection */ + 0x05, 0x0D, /* Usage Page (Digitizer) */ + 0x09, 0x0E, /* Usage (Configuration) */ + 0xA1, 0x01, /* Collection (Application) */ + 0x85, REPORT_ID_INPUT_MODE, /* Report ID (Input Mode) */ + 0x09, 0x22, /* Usage (Finger) */ + 0xA1, 0x02, /* Collection (Logical) */ + 0x09, 0x52, /* Usage (Input Mode) */ + 0x15, 0x00, /* Logical Minimum (0) */ + 0x25, 0x0F, /* Logical Maximum (15) */ + 0x75, 0x08, /* Report Size (8) */ + 0x95, 0x01, /* Report Count (1) */ + 0xB1, 0x02, /* Feature (Data,Var,Abs) */ + 0xC0, /* End Collection */ + 0x09, 0x22, /* Usage (Finger) */ + 0xA1, 0x00, /* Collection (Physical) */ + 0x85, REPORT_ID_REPORTING, /* Report ID (Selective Reporting)*/ + 0x09, 0x57, /* Usage (Surface Switch) */ + 0x09, 0x58, /* Usage (Button Switch) */ + 0x75, 0x04, /* Report Size (4) */ + 0x95, 0x02, /* Report Count (2) */ + 0x25, 0x01, /* Logical Maximum (1) */ + 0xB1, 0x02, /* Feature (Data,Var,Abs) */ + 0xC0, /* End Collection */ + 0xC0, /* End Collection */ }; static const uint8_t device_caps[] = { - I2C_HID_TOUCHPAD_MAX_FINGERS, /* Contact Count Maximum */ - 0x00, /* Pad Type: Depressible click-pad */ + I2C_HID_TOUCHPAD_MAX_FINGERS, /* Contact Count Maximum */ + 0x00, /* Pad Type: Depressible click-pad */ }; /* A 256-byte default blob for the 'device certification status' feature report * expected by Windows. */ static const uint8_t device_cert[] = { - 0xFC, 0x28, 0xFE, 0x84, 0x40, 0xCB, 0x9A, 0x87, - 0x0D, 0xBE, 0x57, 0x3C, 0xB6, 0x70, 0x09, 0x88, - 0x07, 0x97, 0x2D, 0x2B, 0xE3, 0x38, 0x34, 0xB6, - 0x6C, 0xED, 0xB0, 0xF7, 0xE5, 0x9C, 0xF6, 0xC2, - 0x2E, 0x84, 0x1B, 0xE8, 0xB4, 0x51, 0x78, 0x43, - 0x1F, 0x28, 0x4B, 0x7C, 0x2D, 0x53, 0xAF, 0xFC, - 0x47, 0x70, 0x1B, 0x59, 0x6F, 0x74, 0x43, 0xC4, - 0xF3, 0x47, 0x18, 0x53, 0x1A, 0xA2, 0xA1, 0x71, - 0xC7, 0x95, 0x0E, 0x31, 0x55, 0x21, 0xD3, 0xB5, - 0x1E, 0xE9, 0x0C, 0xBA, 0xEC, 0xB8, 0x89, 0x19, - 0x3E, 0xB3, 0xAF, 0x75, 0x81, 0x9D, 0x53, 0xB9, - 0x41, 0x57, 0xF4, 0x6D, 0x39, 0x25, 0x29, 0x7C, - 0x87, 0xD9, 0xB4, 0x98, 0x45, 0x7D, 0xA7, 0x26, - 0x9C, 0x65, 0x3B, 0x85, 0x68, 0x89, 0xD7, 0x3B, - 0xBD, 0xFF, 0x14, 0x67, 0xF2, 0x2B, 0xF0, 0x2A, - 0x41, 0x54, 0xF0, 0xFD, 0x2C, 0x66, 0x7C, 0xF8, - 0xC0, 0x8F, 0x33, 0x13, 0x03, 0xF1, 0xD3, 0xC1, - 0x0B, 0x89, 0xD9, 0x1B, 0x62, 0xCD, 0x51, 0xB7, - 0x80, 0xB8, 0xAF, 0x3A, 0x10, 0xC1, 0x8A, 0x5B, - 0xE8, 0x8A, 0x56, 0xF0, 0x8C, 0xAA, 0xFA, 0x35, - 0xE9, 0x42, 0xC4, 0xD8, 0x55, 0xC3, 0x38, 0xCC, - 0x2B, 0x53, 0x5C, 0x69, 0x52, 0xD5, 0xC8, 0x73, - 0x02, 0x38, 0x7C, 0x73, 0xB6, 0x41, 0xE7, 0xFF, - 0x05, 0xD8, 0x2B, 0x79, 0x9A, 0xE2, 0x34, 0x60, - 0x8F, 0xA3, 0x32, 0x1F, 0x09, 0x78, 0x62, 0xBC, - 0x80, 0xE3, 0x0F, 0xBD, 0x65, 0x20, 0x08, 0x13, - 0xC1, 0xE2, 0xEE, 0x53, 0x2D, 0x86, 0x7E, 0xA7, - 0x5A, 0xC5, 0xD3, 0x7D, 0x98, 0xBE, 0x31, 0x48, - 0x1F, 0xFB, 0xDA, 0xAF, 0xA2, 0xA8, 0x6A, 0x89, - 0xD6, 0xBF, 0xF2, 0xD3, 0x32, 0x2A, 0x9A, 0xE4, - 0xCF, 0x17, 0xB7, 0xB8, 0xF4, 0xE1, 0x33, 0x08, - 0x24, 0x8B, 0xC4, 0x43, 0xA5, 0xE5, 0x24, 0xC2, + 0xFC, 0x28, 0xFE, 0x84, 0x40, 0xCB, 0x9A, 0x87, 0x0D, 0xBE, 0x57, 0x3C, + 0xB6, 0x70, 0x09, 0x88, 0x07, 0x97, 0x2D, 0x2B, 0xE3, 0x38, 0x34, 0xB6, + 0x6C, 0xED, 0xB0, 0xF7, 0xE5, 0x9C, 0xF6, 0xC2, 0x2E, 0x84, 0x1B, 0xE8, + 0xB4, 0x51, 0x78, 0x43, 0x1F, 0x28, 0x4B, 0x7C, 0x2D, 0x53, 0xAF, 0xFC, + 0x47, 0x70, 0x1B, 0x59, 0x6F, 0x74, 0x43, 0xC4, 0xF3, 0x47, 0x18, 0x53, + 0x1A, 0xA2, 0xA1, 0x71, 0xC7, 0x95, 0x0E, 0x31, 0x55, 0x21, 0xD3, 0xB5, + 0x1E, 0xE9, 0x0C, 0xBA, 0xEC, 0xB8, 0x89, 0x19, 0x3E, 0xB3, 0xAF, 0x75, + 0x81, 0x9D, 0x53, 0xB9, 0x41, 0x57, 0xF4, 0x6D, 0x39, 0x25, 0x29, 0x7C, + 0x87, 0xD9, 0xB4, 0x98, 0x45, 0x7D, 0xA7, 0x26, 0x9C, 0x65, 0x3B, 0x85, + 0x68, 0x89, 0xD7, 0x3B, 0xBD, 0xFF, 0x14, 0x67, 0xF2, 0x2B, 0xF0, 0x2A, + 0x41, 0x54, 0xF0, 0xFD, 0x2C, 0x66, 0x7C, 0xF8, 0xC0, 0x8F, 0x33, 0x13, + 0x03, 0xF1, 0xD3, 0xC1, 0x0B, 0x89, 0xD9, 0x1B, 0x62, 0xCD, 0x51, 0xB7, + 0x80, 0xB8, 0xAF, 0x3A, 0x10, 0xC1, 0x8A, 0x5B, 0xE8, 0x8A, 0x56, 0xF0, + 0x8C, 0xAA, 0xFA, 0x35, 0xE9, 0x42, 0xC4, 0xD8, 0x55, 0xC3, 0x38, 0xCC, + 0x2B, 0x53, 0x5C, 0x69, 0x52, 0xD5, 0xC8, 0x73, 0x02, 0x38, 0x7C, 0x73, + 0xB6, 0x41, 0xE7, 0xFF, 0x05, 0xD8, 0x2B, 0x79, 0x9A, 0xE2, 0x34, 0x60, + 0x8F, 0xA3, 0x32, 0x1F, 0x09, 0x78, 0x62, 0xBC, 0x80, 0xE3, 0x0F, 0xBD, + 0x65, 0x20, 0x08, 0x13, 0xC1, 0xE2, 0xEE, 0x53, 0x2D, 0x86, 0x7E, 0xA7, + 0x5A, 0xC5, 0xD3, 0x7D, 0x98, 0xBE, 0x31, 0x48, 0x1F, 0xFB, 0xDA, 0xAF, + 0xA2, 0xA8, 0x6A, 0x89, 0xD6, 0xBF, 0xF2, 0xD3, 0x32, 0x2A, 0x9A, 0xE4, + 0xCF, 0x17, 0xB7, 0xB8, 0xF4, 0xE1, 0x33, 0x08, 0x24, 0x8B, 0xC4, 0x43, + 0xA5, 0xE5, 0x24, 0xC2, }; #define MAX_SIZEOF(a, b) (sizeof(a) > sizeof(b) ? sizeof(a) : sizeof(b)) @@ -431,7 +409,7 @@ static bool pending_probe; static bool pending_reset; /* Reports (double buffered) */ -#define MAX_REPORT_CNT 2 +#define MAX_REPORT_CNT 2 static struct touch_report touch_reports[MAX_REPORT_CNT]; static struct mouse_report mouse_reports[MAX_REPORT_CNT]; @@ -448,8 +426,8 @@ static uint8_t input_mode; * |reporting.button_switch|, respectively. */ struct selective_reporting { - uint8_t surface_switch:4; - uint8_t button_switch:4; + uint8_t surface_switch : 4; + uint8_t button_switch : 4; } __packed; static struct selective_reporting reporting; @@ -568,7 +546,7 @@ int i2c_hid_touchpad_process(unsigned int len, uint8_t *buffer, break; case I2C_HID_COMMAND_REGISTER: *cmd = i2c_hid_touchpad_command_process(len, buffer, - send_response, data); + send_response, data); break; default: /* Unknown register has been received. */ @@ -697,9 +675,9 @@ void i2c_hid_compile_report(struct touchpad_event *event) touch->finger[i].pressure = event->finger[i].pressure; if (event->finger[i].is_palm) touch->finger[i].pressure = - I2C_HID_TOUCHPAD_MAX_PRESSURE; + I2C_HID_TOUCHPAD_MAX_PRESSURE; touch->finger[i].orientation = - event->finger[i].orientation; + event->finger[i].orientation; contact_num++; } else if (touch_old->finger[i].tip) { /* |