diff options
Diffstat (limited to 'backends/wctablet.c')
| -rw-r--r-- | backends/wctablet.c | 369 |
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); |