^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Wacom protocol 4 serial tablet driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2014 Hans de Goede <hdegoede@redhat.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright 2011-2012 Julian Squires <julian@cipht.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Many thanks to Bill Seremetis, without whom PenPartner support
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * would not have been possible. Thanks to Patrick Mahoney.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * This driver was developed with reference to much code written by others,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * particularly:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * - elo, gunze drivers by Vojtech Pavlik <vojtech@ucw.cz>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * - wacom_w8001 driver by Jaya Kumar <jayakumar.lkml@gmail.com>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * - the USB wacom input driver, credited to many people
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * (see drivers/input/tablet/wacom.h);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * - new and old versions of linuxwacom / xf86-input-wacom credited to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) * Frederic Lepied, France. <Lepied@XFree86.org> and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * Ping Cheng, Wacom. <pingc@wacom.com>;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * - and xf86wacom.c (a presumably ancient version of the linuxwacom code),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * by Frederic Lepied and Raph Levien <raph@gtk.org>.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * To do:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) * - support pad buttons; (requires access to a model with pad buttons)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * - support (protocol 4-style) tilt (requires access to a > 1.4 rom model)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) * Wacom serial protocol 4 documentation taken from linuxwacom-0.9.9 code,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) * protocol 4 uses 7 or 9 byte of data in the following format:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) * Byte 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) * bit 7 Sync bit always 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * bit 6 Pointing device detected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * bit 5 Cursor = 0 / Stylus = 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) * bit 4 Reserved
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) * bit 3 1 if a button on the pointing device has been pressed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) * bit 2 P0 (optional)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) * bit 1 X15
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * bit 0 X14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * Byte 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) * bit 7 Always 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * bits 6-0 = X13 - X7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * Byte 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * bit 7 Always 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * bits 6-0 = X6 - X0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * Byte 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * bit 7 Always 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) * bit 6 B3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * bit 5 B2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * bit 4 B1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) * bit 3 B0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * bit 2 P1 (optional)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * bit 1 Y15
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) * bit 0 Y14
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * Byte 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) * bit 7 Always 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) * bits 6-0 = Y13 - Y7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) * Byte 6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) * bit 7 Always 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) * bits 6-0 = Y6 - Y0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * Byte 7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * bit 7 Always 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) * bit 6 Sign of pressure data; or wheel-rel for cursor tool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) * bit 5 P7; or REL1 for cursor tool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) * bit 4 P6; or REL0 for cursor tool
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) * bit 3 P5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) * bit 2 P4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) * bit 1 P3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) * bit 0 P2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * byte 8 and 9 are optional and present only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * in tilt mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * Byte 8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * bit 7 Always 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * bit 6 Sign of tilt X
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * bit 5 Xt6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * bit 4 Xt5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * bit 3 Xt4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * bit 2 Xt3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) * bit 1 Xt2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * bit 0 Xt1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * Byte 9
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) * bit 7 Always 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) * bit 6 Sign of tilt Y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) * bit 5 Yt6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * bit 4 Yt5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) * bit 3 Yt4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) * bit 2 Yt3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * bit 1 Yt2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * bit 0 Yt1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) #include <linux/completion.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) #include <linux/serio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) MODULE_AUTHOR("Julian Squires <julian@cipht.net>, Hans de Goede <hdegoede@redhat.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) MODULE_DESCRIPTION("Wacom protocol 4 serial tablet driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) #define REQUEST_MODEL_AND_ROM_VERSION "~#"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) #define REQUEST_MAX_COORDINATES "~C\r"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) #define REQUEST_CONFIGURATION_STRING "~R\r"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) #define REQUEST_RESET_TO_PROTOCOL_IV "\r#"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) * Note: sending "\r$\r" causes at least the Digitizer II to send
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) * packets in ASCII instead of binary. "\r#" seems to undo that.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) #define COMMAND_START_SENDING_PACKETS "ST\r"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) #define COMMAND_STOP_SENDING_PACKETS "SP\r"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) #define COMMAND_MULTI_MODE_INPUT "MU1\r"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) #define COMMAND_ORIGIN_IN_UPPER_LEFT "OC1\r"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) #define COMMAND_ENABLE_ALL_MACRO_BUTTONS "~M0\r"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) #define COMMAND_DISABLE_GROUP_1_MACRO_BUTTONS "~M1\r"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) #define COMMAND_TRANSMIT_AT_MAX_RATE "IT0\r"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) #define COMMAND_DISABLE_INCREMENTAL_MODE "IN0\r"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) #define COMMAND_ENABLE_CONTINUOUS_MODE "SR\r"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) #define COMMAND_ENABLE_PRESSURE_MODE "PH1\r"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) #define COMMAND_Z_FILTER "ZF1\r"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) /* Note that this is a protocol 4 packet without tilt information. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) #define PACKET_LENGTH 7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) #define DATA_SIZE 32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) /* flags */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) #define F_COVERS_SCREEN 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) #define F_HAS_STYLUS2 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) #define F_HAS_SCROLLWHEEL 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) /* device IDs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) #define STYLUS_DEVICE_ID 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) #define CURSOR_DEVICE_ID 0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) #define ERASER_DEVICE_ID 0x0A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) enum { STYLUS = 1, ERASER, CURSOR };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) static const struct {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) int device_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) int input_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) } tools[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) { 0, 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) { STYLUS_DEVICE_ID, BTN_TOOL_PEN },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) { ERASER_DEVICE_ID, BTN_TOOL_RUBBER },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) { CURSOR_DEVICE_ID, BTN_TOOL_MOUSE },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) struct wacom {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) struct input_dev *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) struct completion cmd_done;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) int result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) u8 expect;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) u8 eraser_mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) unsigned int extra_z_bits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) unsigned int flags;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) unsigned int res_x, res_y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) unsigned int max_x, max_y;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) unsigned int tool;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) unsigned int idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) u8 data[DATA_SIZE];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) char phys[32];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) enum {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) MODEL_CINTIQ = 0x504C, /* PL */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) MODEL_CINTIQ2 = 0x4454, /* DT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) MODEL_DIGITIZER_II = 0x5544, /* UD */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) MODEL_GRAPHIRE = 0x4554, /* ET */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) MODEL_PENPARTNER = 0x4354, /* CT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) MODEL_ARTPAD_II = 0x4B54, /* KT */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) static void wacom_handle_model_response(struct wacom *wacom)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) int major_v, minor_v, r = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) char *p;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) p = strrchr(wacom->data, 'V');
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) if (p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) r = sscanf(p + 1, "%u.%u", &major_v, &minor_v);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (r != 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) major_v = minor_v = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) switch (wacom->data[2] << 8 | wacom->data[3]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) case MODEL_CINTIQ: /* UNTESTED */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) case MODEL_CINTIQ2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) if ((wacom->data[2] << 8 | wacom->data[3]) == MODEL_CINTIQ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) wacom->dev->name = "Wacom Cintiq";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) wacom->dev->id.version = MODEL_CINTIQ;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) wacom->dev->name = "Wacom Cintiq II";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) wacom->dev->id.version = MODEL_CINTIQ2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) wacom->res_x = 508;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) wacom->res_y = 508;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) switch (wacom->data[5] << 8 | wacom->data[6]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) case 0x3731: /* PL-710 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) wacom->res_x = 2540;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) wacom->res_y = 2540;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) case 0x3535: /* PL-550 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) case 0x3830: /* PL-800 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) wacom->extra_z_bits = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) wacom->flags = F_COVERS_SCREEN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) case MODEL_PENPARTNER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) wacom->dev->name = "Wacom Penpartner";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) wacom->dev->id.version = MODEL_PENPARTNER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) wacom->res_x = 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) wacom->res_y = 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) case MODEL_GRAPHIRE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) wacom->dev->name = "Wacom Graphire";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) wacom->dev->id.version = MODEL_GRAPHIRE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) wacom->res_x = 1016;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) wacom->res_y = 1016;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) wacom->max_x = 5103;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) wacom->max_y = 3711;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) wacom->extra_z_bits = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) wacom->eraser_mask = 0x08;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) wacom->flags = F_HAS_STYLUS2 | F_HAS_SCROLLWHEEL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) case MODEL_ARTPAD_II:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) case MODEL_DIGITIZER_II:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) wacom->dev->name = "Wacom Digitizer II";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) wacom->dev->id.version = MODEL_DIGITIZER_II;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) if (major_v == 1 && minor_v <= 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) wacom->extra_z_bits = 0; /* UNTESTED */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) dev_err(&wacom->dev->dev, "Unsupported Wacom model %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) wacom->data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) wacom->result = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) dev_info(&wacom->dev->dev, "%s tablet, version %u.%u\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) wacom->dev->name, major_v, minor_v);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) static void wacom_handle_configuration_response(struct wacom *wacom)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) int r, skip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) dev_dbg(&wacom->dev->dev, "Configuration string: %s\n", wacom->data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) r = sscanf(wacom->data, "~R%x,%u,%u,%u,%u", &skip, &skip, &skip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) &wacom->res_x, &wacom->res_y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) if (r != 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) dev_warn(&wacom->dev->dev, "could not get resolution\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) static void wacom_handle_coordinates_response(struct wacom *wacom)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) int r;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) dev_dbg(&wacom->dev->dev, "Coordinates string: %s\n", wacom->data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) r = sscanf(wacom->data, "~C%u,%u", &wacom->max_x, &wacom->max_y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) if (r != 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) dev_warn(&wacom->dev->dev, "could not get max coordinates\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) static void wacom_handle_response(struct wacom *wacom)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) if (wacom->data[0] != '~' || wacom->data[1] != wacom->expect) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) dev_err(&wacom->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) "Wacom got an unexpected response: %s\n", wacom->data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) wacom->result = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) wacom->result = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) switch (wacom->data[1]) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) case '#':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) wacom_handle_model_response(wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) case 'R':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) wacom_handle_configuration_response(wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) case 'C':
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) wacom_handle_coordinates_response(wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) complete(&wacom->cmd_done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) static void wacom_handle_packet(struct wacom *wacom)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) u8 in_proximity_p, stylus_p, button;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) unsigned int tool;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) int x, y, z;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) in_proximity_p = wacom->data[0] & 0x40;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) stylus_p = wacom->data[0] & 0x20;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) button = (wacom->data[3] & 0x78) >> 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) x = (wacom->data[0] & 3) << 14 | wacom->data[1]<<7 | wacom->data[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) y = (wacom->data[3] & 3) << 14 | wacom->data[4]<<7 | wacom->data[5];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) if (in_proximity_p && stylus_p) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) z = wacom->data[6] & 0x7f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) if (wacom->extra_z_bits >= 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) z = z << 1 | (wacom->data[3] & 0x4) >> 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) if (wacom->extra_z_bits > 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) z = z << 1 | (wacom->data[0] & 0x4) >> 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) z = z ^ (0x40 << wacom->extra_z_bits);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) z = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) if (stylus_p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) tool = (button & wacom->eraser_mask) ? ERASER : STYLUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) tool = CURSOR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) if (tool != wacom->tool && wacom->tool != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) input_report_key(wacom->dev, tools[wacom->tool].input_id, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) input_sync(wacom->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) wacom->tool = tool;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) input_report_key(wacom->dev, tools[tool].input_id, in_proximity_p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) input_report_abs(wacom->dev, ABS_MISC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) in_proximity_p ? tools[tool].device_id : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) input_report_abs(wacom->dev, ABS_X, x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) input_report_abs(wacom->dev, ABS_Y, y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) input_report_abs(wacom->dev, ABS_PRESSURE, z);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) if (stylus_p) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) input_report_key(wacom->dev, BTN_TOUCH, button & 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) input_report_key(wacom->dev, BTN_STYLUS, button & 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) input_report_key(wacom->dev, BTN_STYLUS2, button & 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) input_report_key(wacom->dev, BTN_LEFT, button & 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) input_report_key(wacom->dev, BTN_RIGHT, button & 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) input_report_key(wacom->dev, BTN_MIDDLE, button & 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) /* handle relative wheel for non-stylus device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) z = (wacom->data[6] & 0x30) >> 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) if (wacom->data[6] & 0x40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) z = -z;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) input_report_rel(wacom->dev, REL_WHEEL, z);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) input_sync(wacom->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) static void wacom_clear_data_buf(struct wacom *wacom)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) memset(wacom->data, 0, DATA_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) wacom->idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) static irqreturn_t wacom_interrupt(struct serio *serio, unsigned char data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) unsigned int flags)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) struct wacom *wacom = serio_get_drvdata(serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) if (data & 0x80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) wacom->idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) * We're either expecting a carriage return-terminated ASCII
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) * response string, or a seven-byte packet with the MSB set on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) * the first byte.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) * Note however that some tablets (the PenPartner, for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) * example) don't send a carriage return at the end of a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) * command. We handle these by waiting for timeout.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) if (data == '\r' && !(wacom->data[0] & 0x80)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) wacom_handle_response(wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) wacom_clear_data_buf(wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) /* Leave place for 0 termination */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) if (wacom->idx > (DATA_SIZE - 2)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) dev_dbg(&wacom->dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) "throwing away %d bytes of garbage\n", wacom->idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) wacom_clear_data_buf(wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) wacom->data[wacom->idx++] = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) if (wacom->idx == PACKET_LENGTH && (wacom->data[0] & 0x80)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) wacom_handle_packet(wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) wacom_clear_data_buf(wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) static void wacom_disconnect(struct serio *serio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) struct wacom *wacom = serio_get_drvdata(serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) serio_close(serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) serio_set_drvdata(serio, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) input_unregister_device(wacom->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) kfree(wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) static int wacom_send(struct serio *serio, const u8 *command)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) for (; !err && *command; command++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) err = serio_write(serio, *command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) static int wacom_send_setup_string(struct wacom *wacom, struct serio *serio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) const u8 *cmd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) switch (wacom->dev->id.version) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) case MODEL_CINTIQ: /* UNTESTED */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) cmd = COMMAND_ORIGIN_IN_UPPER_LEFT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) COMMAND_TRANSMIT_AT_MAX_RATE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) COMMAND_ENABLE_CONTINUOUS_MODE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) COMMAND_START_SENDING_PACKETS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) case MODEL_PENPARTNER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) cmd = COMMAND_ENABLE_PRESSURE_MODE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) COMMAND_START_SENDING_PACKETS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) cmd = COMMAND_MULTI_MODE_INPUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) COMMAND_ORIGIN_IN_UPPER_LEFT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) COMMAND_ENABLE_ALL_MACRO_BUTTONS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) COMMAND_DISABLE_GROUP_1_MACRO_BUTTONS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) COMMAND_TRANSMIT_AT_MAX_RATE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) COMMAND_DISABLE_INCREMENTAL_MODE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) COMMAND_ENABLE_CONTINUOUS_MODE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) COMMAND_Z_FILTER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) COMMAND_START_SENDING_PACKETS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) return wacom_send(serio, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) static int wacom_send_and_wait(struct wacom *wacom, struct serio *serio,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) const u8 *cmd, const char *desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) unsigned long u;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) wacom->expect = cmd[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) init_completion(&wacom->cmd_done);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) err = wacom_send(serio, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) u = wait_for_completion_timeout(&wacom->cmd_done, HZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) if (u == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) /* Timeout, process what we've received. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) wacom_handle_response(wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) wacom->expect = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) return wacom->result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) static int wacom_setup(struct wacom *wacom, struct serio *serio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) /* Note that setting the link speed is the job of inputattach.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) * We assume that reset negotiation has already happened,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) * here. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) err = wacom_send_and_wait(wacom, serio, REQUEST_MODEL_AND_ROM_VERSION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) "model and version");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) if (!(wacom->res_x && wacom->res_y)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) err = wacom_send_and_wait(wacom, serio,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) REQUEST_CONFIGURATION_STRING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) "configuration string");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) if (!(wacom->max_x && wacom->max_y)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) err = wacom_send_and_wait(wacom, serio,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) REQUEST_MAX_COORDINATES,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) "coordinates string");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) return wacom_send_setup_string(wacom, serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) static int wacom_connect(struct serio *serio, struct serio_driver *drv)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) struct wacom *wacom;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) struct input_dev *input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) int err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) input_dev = input_allocate_device();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) if (!wacom || !input_dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) goto free_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) wacom->dev = input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) wacom->extra_z_bits = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) wacom->eraser_mask = 0x04;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) wacom->tool = wacom->idx = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) snprintf(wacom->phys, sizeof(wacom->phys), "%s/input0", serio->phys);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) input_dev->phys = wacom->phys;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) input_dev->id.bustype = BUS_RS232;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) input_dev->id.vendor = SERIO_WACOM_IV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) input_dev->id.product = serio->id.extra;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) input_dev->dev.parent = &serio->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) input_dev->evbit[0] =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) | BIT_MASK(EV_REL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) set_bit(ABS_MISC, input_dev->absbit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) set_bit(BTN_TOOL_PEN, input_dev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) set_bit(BTN_TOOL_MOUSE, input_dev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) set_bit(BTN_TOUCH, input_dev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) set_bit(BTN_STYLUS, input_dev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) set_bit(BTN_LEFT, input_dev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) set_bit(BTN_RIGHT, input_dev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) set_bit(BTN_MIDDLE, input_dev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) serio_set_drvdata(serio, wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) err = serio_open(serio, drv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) goto free_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) err = wacom_setup(wacom, serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) goto close_serio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) if (!(wacom->flags & F_COVERS_SCREEN))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) __set_bit(INPUT_PROP_POINTER, input_dev->propbit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) if (wacom->flags & F_HAS_STYLUS2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) __set_bit(BTN_STYLUS2, input_dev->keybit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) if (wacom->flags & F_HAS_SCROLLWHEEL)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) __set_bit(REL_WHEEL, input_dev->relbit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) input_abs_set_res(wacom->dev, ABS_X, wacom->res_x);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) input_abs_set_res(wacom->dev, ABS_Y, wacom->res_y);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) input_set_abs_params(wacom->dev, ABS_X, 0, wacom->max_x, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) input_set_abs_params(wacom->dev, ABS_Y, 0, wacom->max_y, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) input_set_abs_params(wacom->dev, ABS_PRESSURE, -1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) (1 << (7 + wacom->extra_z_bits)) - 1, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) err = input_register_device(wacom->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) goto close_serio;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) close_serio:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) serio_close(serio);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) free_device:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) serio_set_drvdata(serio, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) input_free_device(input_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) kfree(wacom);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) static const struct serio_device_id wacom_serio_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) .type = SERIO_RS232,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) .proto = SERIO_WACOM_IV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) .id = SERIO_ANY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) .extra = SERIO_ANY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) { 0 }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) MODULE_DEVICE_TABLE(serio, wacom_serio_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) static struct serio_driver wacom_drv = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) .name = "wacom_serial4",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) .description = "Wacom protocol 4 serial tablet driver",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) .id_table = wacom_serio_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) .interrupt = wacom_interrupt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) .connect = wacom_connect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) .disconnect = wacom_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) module_serio_driver(wacom_drv);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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