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-rw-r--r--backends/wctablet.c369
1 files changed, 0 insertions, 369 deletions
diff --git a/backends/wctablet.c b/backends/wctablet.c
deleted file mode 100644
index 6c13c2c58a..0000000000
--- a/backends/wctablet.c
+++ /dev/null
@@ -1,369 +0,0 @@
-/*
- * QEMU Wacom Penpartner serial tablet emulation
- *
- * some protocol details:
- * http://linuxwacom.sourceforge.net/wiki/index.php/Serial_Protocol_IV
- *
- * Copyright (c) 2016 Anatoli Huseu1
- * Copyright (c) 2016,17 Gerd Hoffmann
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to
- * deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-#include <stdlib.h>
-#include <string.h>
-#include <sys/time.h>
-#include <time.h>
-
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "chardev/char-serial.h"
-#include "ui/console.h"
-#include "ui/input.h"
-#include "trace.h"
-
-
-#define WC_OUTPUT_BUF_MAX_LEN 512
-#define WC_COMMAND_MAX_LEN 60
-
-#define WC_L7(n) ((n) & 127)
-#define WC_M7(n) (((n) >> 7) & 127)
-#define WC_H2(n) ((n) >> 14)
-
-#define WC_L4(n) ((n) & 15)
-#define WC_H4(n) (((n) >> 4) & 15)
-
-/* Model string and config string */
-#define WC_MODEL_STRING_LENGTH 18
-uint8_t WC_MODEL_STRING[WC_MODEL_STRING_LENGTH + 1] = "~#CT-0045R,V1.3-5,";
-
-#define WC_CONFIG_STRING_LENGTH 8
-uint8_t WC_CONFIG_STRING[WC_CONFIG_STRING_LENGTH + 1] = "96,N,8,0";
-
-#define WC_FULL_CONFIG_STRING_LENGTH 61
-uint8_t WC_FULL_CONFIG_STRING[WC_FULL_CONFIG_STRING_LENGTH + 1] = {
- 0x5c, 0x39, 0x36, 0x2c, 0x4e, 0x2c, 0x38, 0x2c,
- 0x31, 0x28, 0x01, 0x24, 0x57, 0x41, 0x43, 0x30,
- 0x30, 0x34, 0x35, 0x5c, 0x5c, 0x50, 0x45, 0x4e, 0x5c,
- 0x57, 0x41, 0x43, 0x30, 0x30, 0x30, 0x30, 0x5c,
- 0x54, 0x61, 0x62, 0x6c, 0x65, 0x74, 0x0d, 0x0a,
- 0x43, 0x54, 0x2d, 0x30, 0x30, 0x34, 0x35, 0x52,
- 0x2c, 0x56, 0x31, 0x2e, 0x33, 0x2d, 0x35, 0x0d,
- 0x0a, 0x45, 0x37, 0x29
-};
-
-/* This structure is used to save private info for Wacom Tablet. */
-typedef struct {
- Chardev parent;
- QemuInputHandlerState *hs;
-
- /* Query string from serial */
- uint8_t query[100];
- int query_index;
-
- /* Command to be sent to serial port */
- uint8_t outbuf[WC_OUTPUT_BUF_MAX_LEN];
- int outlen;
-
- int line_speed;
- bool send_events;
- int axis[INPUT_AXIS__MAX];
- bool btns[INPUT_BUTTON__MAX];
-
-} TabletChardev;
-
-#define TYPE_CHARDEV_WCTABLET "chardev-wctablet"
-#define WCTABLET_CHARDEV(obj) \
- OBJECT_CHECK(TabletChardev, (obj), TYPE_CHARDEV_WCTABLET)
-
-
-static void wctablet_chr_accept_input(Chardev *chr);
-
-static void wctablet_shift_input(TabletChardev *tablet, int count)
-{
- tablet->query_index -= count;
- memmove(tablet->query, tablet->query + count, tablet->query_index);
- tablet->query[tablet->query_index] = 0;
-}
-
-static void wctablet_queue_output(TabletChardev *tablet, uint8_t *buf, int count)
-{
- if (tablet->outlen + count > sizeof(tablet->outbuf)) {
- return;
- }
-
- memcpy(tablet->outbuf + tablet->outlen, buf, count);
- tablet->outlen += count;
- wctablet_chr_accept_input(CHARDEV(tablet));
-}
-
-static void wctablet_reset(TabletChardev *tablet)
-{
- /* clear buffers */
- tablet->query_index = 0;
- tablet->outlen = 0;
- /* reset state */
- tablet->send_events = false;
-}
-
-static void wctablet_queue_event(TabletChardev *tablet)
-{
- uint8_t codes[8] = { 0xe0, 0, 0, 0, 0, 0, 0 };
-
- if (tablet->line_speed != 9600) {
- return;
- }
-
- int newX = tablet->axis[INPUT_AXIS_X] * 0.1537;
- int nexY = tablet->axis[INPUT_AXIS_Y] * 0.1152;
-
- codes[0] = codes[0] | WC_H2(newX);
- codes[1] = codes[1] | WC_M7(newX);
- codes[2] = codes[2] | WC_L7(newX);
-
- codes[3] = codes[3] | WC_H2(nexY);
- codes[4] = codes[4] | WC_M7(nexY);
- codes[5] = codes[5] | WC_L7(nexY);
-
- if (tablet->btns[INPUT_BUTTON_LEFT]) {
- codes[0] = 0xa0;
- }
-
- wctablet_queue_output(tablet, codes, 7);
-}
-
-static void wctablet_input_event(DeviceState *dev, QemuConsole *src,
- InputEvent *evt)
-{
- TabletChardev *tablet = (TabletChardev *)dev;
- InputMoveEvent *move;
- InputBtnEvent *btn;
-
- switch (evt->type) {
- case INPUT_EVENT_KIND_ABS:
- move = evt->u.abs.data;
- tablet->axis[move->axis] = move->value;
- break;
-
- case INPUT_EVENT_KIND_BTN:
- btn = evt->u.btn.data;
- tablet->btns[btn->button] = btn->down;
- break;
-
- default:
- /* keep gcc happy */
- break;
- }
-}
-
-static void wctablet_input_sync(DeviceState *dev)
-{
- TabletChardev *tablet = (TabletChardev *)dev;
-
- if (tablet->send_events) {
- wctablet_queue_event(tablet);
- }
-}
-
-static QemuInputHandler wctablet_handler = {
- .name = "QEMU Wacome Pen Tablet",
- .mask = INPUT_EVENT_MASK_BTN | INPUT_EVENT_MASK_ABS,
- .event = wctablet_input_event,
- .sync = wctablet_input_sync,
-};
-
-static void wctablet_chr_accept_input(Chardev *chr)
-{
- TabletChardev *tablet = WCTABLET_CHARDEV(chr);
- int len, canWrite;
-
- canWrite = qemu_chr_be_can_write(chr);
- len = canWrite;
- if (len > tablet->outlen) {
- len = tablet->outlen;
- }
-
- if (len) {
- qemu_chr_be_write(chr, tablet->outbuf, len);
- tablet->outlen -= len;
- if (tablet->outlen) {
- memmove(tablet->outbuf, tablet->outbuf + len, tablet->outlen);
- }
- }
-}
-
-static int wctablet_chr_write(struct Chardev *chr,
- const uint8_t *buf, int len)
-{
- TabletChardev *tablet = WCTABLET_CHARDEV(chr);
- unsigned int i, clen;
- char *pos;
-
- if (tablet->line_speed != 9600) {
- return len;
- }
- for (i = 0; i < len && tablet->query_index < sizeof(tablet->query) - 1; i++) {
- tablet->query[tablet->query_index++] = buf[i];
- }
- tablet->query[tablet->query_index] = 0;
-
- while (tablet->query_index > 0 && (tablet->query[0] == '@' ||
- tablet->query[0] == '\r' ||
- tablet->query[0] == '\n')) {
- wctablet_shift_input(tablet, 1);
- }
- if (!tablet->query_index) {
- return len;
- }
-
- if (strncmp((char *)tablet->query, "~#", 2) == 0) {
- /* init / detect sequence */
- trace_wct_init();
- wctablet_shift_input(tablet, 2);
- wctablet_queue_output(tablet, WC_MODEL_STRING,
- WC_MODEL_STRING_LENGTH);
- return len;
- }
-
- /* detect line */
- pos = strchr((char *)tablet->query, '\r');
- if (!pos) {
- pos = strchr((char *)tablet->query, '\n');
- }
- if (!pos) {
- return len;
- }
- clen = pos - (char *)tablet->query;
-
- /* process commands */
- if (strncmp((char *)tablet->query, "RE", 2) == 0 &&
- clen == 2) {
- trace_wct_cmd_re();
- wctablet_shift_input(tablet, 3);
- wctablet_queue_output(tablet, WC_CONFIG_STRING,
- WC_CONFIG_STRING_LENGTH);
-
- } else if (strncmp((char *)tablet->query, "ST", 2) == 0 &&
- clen == 2) {
- trace_wct_cmd_st();
- wctablet_shift_input(tablet, 3);
- tablet->send_events = true;
- wctablet_queue_event(tablet);
-
- } else if (strncmp((char *)tablet->query, "SP", 2) == 0 &&
- clen == 2) {
- trace_wct_cmd_sp();
- wctablet_shift_input(tablet, 3);
- tablet->send_events = false;
-
- } else if (strncmp((char *)tablet->query, "TS", 2) == 0 &&
- clen == 3) {
- unsigned int input = tablet->query[2];
- uint8_t codes[7] = {
- 0xa3,
- ((input & 0x80) == 0) ? 0x7e : 0x7f,
- (((WC_H4(input) & 0x7) ^ 0x5) << 4) | (WC_L4(input) ^ 0x7),
- 0x03,
- 0x7f,
- 0x7f,
- 0x00,
- };
- trace_wct_cmd_ts(input);
- wctablet_shift_input(tablet, 4);
- wctablet_queue_output(tablet, codes, 7);
-
- } else {
- tablet->query[clen] = 0; /* terminate line for printing */
- trace_wct_cmd_other((char *)tablet->query);
- wctablet_shift_input(tablet, clen + 1);
-
- }
-
- return len;
-}
-
-static int wctablet_chr_ioctl(Chardev *chr, int cmd, void *arg)
-{
- TabletChardev *tablet = WCTABLET_CHARDEV(chr);
- QEMUSerialSetParams *ssp;
-
- switch (cmd) {
- case CHR_IOCTL_SERIAL_SET_PARAMS:
- ssp = arg;
- if (tablet->line_speed != ssp->speed) {
- trace_wct_speed(ssp->speed);
- wctablet_reset(tablet);
- tablet->line_speed = ssp->speed;
- }
- break;
- default:
- return -ENOTSUP;
- }
- return 0;
-}
-
-static void wctablet_chr_finalize(Object *obj)
-{
- TabletChardev *tablet = WCTABLET_CHARDEV(obj);
-
- qemu_input_handler_unregister(tablet->hs);
- g_free(tablet);
-}
-
-static void wctablet_chr_open(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- TabletChardev *tablet = WCTABLET_CHARDEV(chr);
-
- *be_opened = true;
-
- /* init state machine */
- memcpy(tablet->outbuf, WC_FULL_CONFIG_STRING, WC_FULL_CONFIG_STRING_LENGTH);
- tablet->outlen = WC_FULL_CONFIG_STRING_LENGTH;
- tablet->query_index = 0;
-
- tablet->hs = qemu_input_handler_register((DeviceState *)tablet,
- &wctablet_handler);
-}
-
-static void wctablet_chr_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->open = wctablet_chr_open;
- cc->chr_write = wctablet_chr_write;
- cc->chr_ioctl = wctablet_chr_ioctl;
- cc->chr_accept_input = wctablet_chr_accept_input;
-}
-
-static const TypeInfo wctablet_type_info = {
- .name = TYPE_CHARDEV_WCTABLET,
- .parent = TYPE_CHARDEV,
- .instance_size = sizeof(TabletChardev),
- .instance_finalize = wctablet_chr_finalize,
- .class_init = wctablet_chr_class_init,
-};
-
-static void register_types(void)
-{
- type_register_static(&wctablet_type_info);
-}
-
-type_init(register_types);
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-03 19:22:27 +0000