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-rw-r--r--backends/baum.c677
1 files changed, 0 insertions, 677 deletions
diff --git a/backends/baum.c b/backends/baum.c
deleted file mode 100644
index 302dd9666c..0000000000
--- a/backends/baum.c
+++ /dev/null
@@ -1,677 +0,0 @@
-/*
- * QEMU Baum Braille Device
- *
- * Copyright (c) 2008, 2010-2011, 2016 Samuel Thibault
- *
- * 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 "qemu/osdep.h"
-#include "qapi/error.h"
-#include "qemu-common.h"
-#include "chardev/char.h"
-#include "qemu/timer.h"
-#include "hw/usb.h"
-#include "ui/console.h"
-#include <brlapi.h>
-#include <brlapi_constants.h>
-#include <brlapi_keycodes.h>
-
-#if 0
-#define DPRINTF(fmt, ...) \
- printf(fmt, ## __VA_ARGS__)
-#else
-#define DPRINTF(fmt, ...)
-#endif
-
-#define ESC 0x1B
-
-#define BAUM_REQ_DisplayData 0x01
-#define BAUM_REQ_GetVersionNumber 0x05
-#define BAUM_REQ_GetKeys 0x08
-#define BAUM_REQ_SetMode 0x12
-#define BAUM_REQ_SetProtocol 0x15
-#define BAUM_REQ_GetDeviceIdentity 0x84
-#define BAUM_REQ_GetSerialNumber 0x8A
-
-#define BAUM_RSP_CellCount 0x01
-#define BAUM_RSP_VersionNumber 0x05
-#define BAUM_RSP_ModeSetting 0x11
-#define BAUM_RSP_CommunicationChannel 0x16
-#define BAUM_RSP_PowerdownSignal 0x17
-#define BAUM_RSP_HorizontalSensors 0x20
-#define BAUM_RSP_VerticalSensors 0x21
-#define BAUM_RSP_RoutingKeys 0x22
-#define BAUM_RSP_Switches 0x23
-#define BAUM_RSP_TopKeys 0x24
-#define BAUM_RSP_HorizontalSensor 0x25
-#define BAUM_RSP_VerticalSensor 0x26
-#define BAUM_RSP_RoutingKey 0x27
-#define BAUM_RSP_FrontKeys6 0x28
-#define BAUM_RSP_BackKeys6 0x29
-#define BAUM_RSP_CommandKeys 0x2B
-#define BAUM_RSP_FrontKeys10 0x2C
-#define BAUM_RSP_BackKeys10 0x2D
-#define BAUM_RSP_EntryKeys 0x33
-#define BAUM_RSP_JoyStick 0x34
-#define BAUM_RSP_ErrorCode 0x40
-#define BAUM_RSP_InfoBlock 0x42
-#define BAUM_RSP_DeviceIdentity 0x84
-#define BAUM_RSP_SerialNumber 0x8A
-#define BAUM_RSP_BluetoothName 0x8C
-
-#define BAUM_TL1 0x01
-#define BAUM_TL2 0x02
-#define BAUM_TL3 0x04
-#define BAUM_TR1 0x08
-#define BAUM_TR2 0x10
-#define BAUM_TR3 0x20
-
-#define BUF_SIZE 256
-
-typedef struct {
- Chardev parent;
-
- brlapi_handle_t *brlapi;
- int brlapi_fd;
- unsigned int x, y;
- bool deferred_init;
-
- uint8_t in_buf[BUF_SIZE];
- uint8_t in_buf_used;
- uint8_t out_buf[BUF_SIZE];
- uint8_t out_buf_used, out_buf_ptr;
-
- QEMUTimer *cellCount_timer;
-} BaumChardev;
-
-#define TYPE_CHARDEV_BRAILLE "chardev-braille"
-#define BAUM_CHARDEV(obj) OBJECT_CHECK(BaumChardev, (obj), TYPE_CHARDEV_BRAILLE)
-
-/* Let's assume NABCC by default */
-enum way {
- DOTS2ASCII,
- ASCII2DOTS
-};
-static const uint8_t nabcc_translation[2][256] = {
-#ifndef BRLAPI_DOTS
-#define BRLAPI_DOTS(d1,d2,d3,d4,d5,d6,d7,d8) \
- ((d1?BRLAPI_DOT1:0)|\
- (d2?BRLAPI_DOT2:0)|\
- (d3?BRLAPI_DOT3:0)|\
- (d4?BRLAPI_DOT4:0)|\
- (d5?BRLAPI_DOT5:0)|\
- (d6?BRLAPI_DOT6:0)|\
- (d7?BRLAPI_DOT7:0)|\
- (d8?BRLAPI_DOT8:0))
-#endif
-#define DO(dots, ascii) \
- [DOTS2ASCII][dots] = ascii, \
- [ASCII2DOTS][ascii] = dots
- DO(0, ' '),
- DO(BRLAPI_DOTS(1, 0, 0, 0, 0, 0, 0, 0), 'a'),
- DO(BRLAPI_DOTS(1, 1, 0, 0, 0, 0, 0, 0), 'b'),
- DO(BRLAPI_DOTS(1, 0, 0, 1, 0, 0, 0, 0), 'c'),
- DO(BRLAPI_DOTS(1, 0, 0, 1, 1, 0, 0, 0), 'd'),
- DO(BRLAPI_DOTS(1, 0, 0, 0, 1, 0, 0, 0), 'e'),
- DO(BRLAPI_DOTS(1, 1, 0, 1, 0, 0, 0, 0), 'f'),
- DO(BRLAPI_DOTS(1, 1, 0, 1, 1, 0, 0, 0), 'g'),
- DO(BRLAPI_DOTS(1, 1, 0, 0, 1, 0, 0, 0), 'h'),
- DO(BRLAPI_DOTS(0, 1, 0, 1, 0, 0, 0, 0), 'i'),
- DO(BRLAPI_DOTS(0, 1, 0, 1, 1, 0, 0, 0), 'j'),
- DO(BRLAPI_DOTS(1, 0, 1, 0, 0, 0, 0, 0), 'k'),
- DO(BRLAPI_DOTS(1, 1, 1, 0, 0, 0, 0, 0), 'l'),
- DO(BRLAPI_DOTS(1, 0, 1, 1, 0, 0, 0, 0), 'm'),
- DO(BRLAPI_DOTS(1, 0, 1, 1, 1, 0, 0, 0), 'n'),
- DO(BRLAPI_DOTS(1, 0, 1, 0, 1, 0, 0, 0), 'o'),
- DO(BRLAPI_DOTS(1, 1, 1, 1, 0, 0, 0, 0), 'p'),
- DO(BRLAPI_DOTS(1, 1, 1, 1, 1, 0, 0, 0), 'q'),
- DO(BRLAPI_DOTS(1, 1, 1, 0, 1, 0, 0, 0), 'r'),
- DO(BRLAPI_DOTS(0, 1, 1, 1, 0, 0, 0, 0), 's'),
- DO(BRLAPI_DOTS(0, 1, 1, 1, 1, 0, 0, 0), 't'),
- DO(BRLAPI_DOTS(1, 0, 1, 0, 0, 1, 0, 0), 'u'),
- DO(BRLAPI_DOTS(1, 1, 1, 0, 0, 1, 0, 0), 'v'),
- DO(BRLAPI_DOTS(0, 1, 0, 1, 1, 1, 0, 0), 'w'),
- DO(BRLAPI_DOTS(1, 0, 1, 1, 0, 1, 0, 0), 'x'),
- DO(BRLAPI_DOTS(1, 0, 1, 1, 1, 1, 0, 0), 'y'),
- DO(BRLAPI_DOTS(1, 0, 1, 0, 1, 1, 0, 0), 'z'),
-
- DO(BRLAPI_DOTS(1, 0, 0, 0, 0, 0, 1, 0), 'A'),
- DO(BRLAPI_DOTS(1, 1, 0, 0, 0, 0, 1, 0), 'B'),
- DO(BRLAPI_DOTS(1, 0, 0, 1, 0, 0, 1, 0), 'C'),
- DO(BRLAPI_DOTS(1, 0, 0, 1, 1, 0, 1, 0), 'D'),
- DO(BRLAPI_DOTS(1, 0, 0, 0, 1, 0, 1, 0), 'E'),
- DO(BRLAPI_DOTS(1, 1, 0, 1, 0, 0, 1, 0), 'F'),
- DO(BRLAPI_DOTS(1, 1, 0, 1, 1, 0, 1, 0), 'G'),
- DO(BRLAPI_DOTS(1, 1, 0, 0, 1, 0, 1, 0), 'H'),
- DO(BRLAPI_DOTS(0, 1, 0, 1, 0, 0, 1, 0), 'I'),
- DO(BRLAPI_DOTS(0, 1, 0, 1, 1, 0, 1, 0), 'J'),
- DO(BRLAPI_DOTS(1, 0, 1, 0, 0, 0, 1, 0), 'K'),
- DO(BRLAPI_DOTS(1, 1, 1, 0, 0, 0, 1, 0), 'L'),
- DO(BRLAPI_DOTS(1, 0, 1, 1, 0, 0, 1, 0), 'M'),
- DO(BRLAPI_DOTS(1, 0, 1, 1, 1, 0, 1, 0), 'N'),
- DO(BRLAPI_DOTS(1, 0, 1, 0, 1, 0, 1, 0), 'O'),
- DO(BRLAPI_DOTS(1, 1, 1, 1, 0, 0, 1, 0), 'P'),
- DO(BRLAPI_DOTS(1, 1, 1, 1, 1, 0, 1, 0), 'Q'),
- DO(BRLAPI_DOTS(1, 1, 1, 0, 1, 0, 1, 0), 'R'),
- DO(BRLAPI_DOTS(0, 1, 1, 1, 0, 0, 1, 0), 'S'),
- DO(BRLAPI_DOTS(0, 1, 1, 1, 1, 0, 1, 0), 'T'),
- DO(BRLAPI_DOTS(1, 0, 1, 0, 0, 1, 1, 0), 'U'),
- DO(BRLAPI_DOTS(1, 1, 1, 0, 0, 1, 1, 0), 'V'),
- DO(BRLAPI_DOTS(0, 1, 0, 1, 1, 1, 1, 0), 'W'),
- DO(BRLAPI_DOTS(1, 0, 1, 1, 0, 1, 1, 0), 'X'),
- DO(BRLAPI_DOTS(1, 0, 1, 1, 1, 1, 1, 0), 'Y'),
- DO(BRLAPI_DOTS(1, 0, 1, 0, 1, 1, 1, 0), 'Z'),
-
- DO(BRLAPI_DOTS(0, 0, 1, 0, 1, 1, 0, 0), '0'),
- DO(BRLAPI_DOTS(0, 1, 0, 0, 0, 0, 0, 0), '1'),
- DO(BRLAPI_DOTS(0, 1, 1, 0, 0, 0, 0, 0), '2'),
- DO(BRLAPI_DOTS(0, 1, 0, 0, 1, 0, 0, 0), '3'),
- DO(BRLAPI_DOTS(0, 1, 0, 0, 1, 1, 0, 0), '4'),
- DO(BRLAPI_DOTS(0, 1, 0, 0, 0, 1, 0, 0), '5'),
- DO(BRLAPI_DOTS(0, 1, 1, 0, 1, 0, 0, 0), '6'),
- DO(BRLAPI_DOTS(0, 1, 1, 0, 1, 1, 0, 0), '7'),
- DO(BRLAPI_DOTS(0, 1, 1, 0, 0, 1, 0, 0), '8'),
- DO(BRLAPI_DOTS(0, 0, 1, 0, 1, 0, 0, 0), '9'),
-
- DO(BRLAPI_DOTS(0, 0, 0, 1, 0, 1, 0, 0), '.'),
- DO(BRLAPI_DOTS(0, 0, 1, 1, 0, 1, 0, 0), '+'),
- DO(BRLAPI_DOTS(0, 0, 1, 0, 0, 1, 0, 0), '-'),
- DO(BRLAPI_DOTS(1, 0, 0, 0, 0, 1, 0, 0), '*'),
- DO(BRLAPI_DOTS(0, 0, 1, 1, 0, 0, 0, 0), '/'),
- DO(BRLAPI_DOTS(1, 1, 1, 0, 1, 1, 0, 0), '('),
- DO(BRLAPI_DOTS(0, 1, 1, 1, 1, 1, 0, 0), ')'),
-
- DO(BRLAPI_DOTS(1, 1, 1, 1, 0, 1, 0, 0), '&'),
- DO(BRLAPI_DOTS(0, 0, 1, 1, 1, 1, 0, 0), '#'),
-
- DO(BRLAPI_DOTS(0, 0, 0, 0, 0, 1, 0, 0), ','),
- DO(BRLAPI_DOTS(0, 0, 0, 0, 1, 1, 0, 0), ';'),
- DO(BRLAPI_DOTS(1, 0, 0, 0, 1, 1, 0, 0), ':'),
- DO(BRLAPI_DOTS(0, 1, 1, 1, 0, 1, 0, 0), '!'),
- DO(BRLAPI_DOTS(1, 0, 0, 1, 1, 1, 0, 0), '?'),
- DO(BRLAPI_DOTS(0, 0, 0, 0, 1, 0, 0, 0), '"'),
- DO(BRLAPI_DOTS(0, 0, 1, 0, 0, 0, 0, 0), '\''),
- DO(BRLAPI_DOTS(0, 0, 0, 1, 0, 0, 0, 0), '`'),
- DO(BRLAPI_DOTS(0, 0, 0, 1, 1, 0, 1, 0), '^'),
- DO(BRLAPI_DOTS(0, 0, 0, 1, 1, 0, 0, 0), '~'),
- DO(BRLAPI_DOTS(0, 1, 0, 1, 0, 1, 1, 0), '['),
- DO(BRLAPI_DOTS(1, 1, 0, 1, 1, 1, 1, 0), ']'),
- DO(BRLAPI_DOTS(0, 1, 0, 1, 0, 1, 0, 0), '{'),
- DO(BRLAPI_DOTS(1, 1, 0, 1, 1, 1, 0, 0), '}'),
- DO(BRLAPI_DOTS(1, 1, 1, 1, 1, 1, 0, 0), '='),
- DO(BRLAPI_DOTS(1, 1, 0, 0, 0, 1, 0, 0), '<'),
- DO(BRLAPI_DOTS(0, 0, 1, 1, 1, 0, 0, 0), '>'),
- DO(BRLAPI_DOTS(1, 1, 0, 1, 0, 1, 0, 0), '$'),
- DO(BRLAPI_DOTS(1, 0, 0, 1, 0, 1, 0, 0), '%'),
- DO(BRLAPI_DOTS(0, 0, 0, 1, 0, 0, 1, 0), '@'),
- DO(BRLAPI_DOTS(1, 1, 0, 0, 1, 1, 0, 0), '|'),
- DO(BRLAPI_DOTS(1, 1, 0, 0, 1, 1, 1, 0), '\\'),
- DO(BRLAPI_DOTS(0, 0, 0, 1, 1, 1, 0, 0), '_'),
-};
-
-/* The guest OS has started discussing with us, finish initializing BrlAPI */
-static int baum_deferred_init(BaumChardev *baum)
-{
- int tty = BRLAPI_TTY_DEFAULT;
- QemuConsole *con;
-
- if (baum->deferred_init) {
- return 1;
- }
-
- if (brlapi__getDisplaySize(baum->brlapi, &baum->x, &baum->y) == -1) {
- brlapi_perror("baum: brlapi__getDisplaySize");
- return 0;
- }
-
- con = qemu_console_lookup_by_index(0);
- if (con && qemu_console_is_graphic(con)) {
- tty = qemu_console_get_window_id(con);
- if (tty == -1)
- tty = BRLAPI_TTY_DEFAULT;
- }
-
- if (brlapi__enterTtyMode(baum->brlapi, tty, NULL) == -1) {
- brlapi_perror("baum: brlapi__enterTtyMode");
- return 0;
- }
- baum->deferred_init = 1;
- return 1;
-}
-
-/* The serial port can receive more of our data */
-static void baum_chr_accept_input(struct Chardev *chr)
-{
- BaumChardev *baum = BAUM_CHARDEV(chr);
- int room, first;
-
- if (!baum->out_buf_used)
- return;
- room = qemu_chr_be_can_write(chr);
- if (!room)
- return;
- if (room > baum->out_buf_used)
- room = baum->out_buf_used;
-
- first = BUF_SIZE - baum->out_buf_ptr;
- if (room > first) {
- qemu_chr_be_write(chr, baum->out_buf + baum->out_buf_ptr, first);
- baum->out_buf_ptr = 0;
- baum->out_buf_used -= first;
- room -= first;
- }
- qemu_chr_be_write(chr, baum->out_buf + baum->out_buf_ptr, room);
- baum->out_buf_ptr += room;
- baum->out_buf_used -= room;
-}
-
-/* We want to send a packet */
-static void baum_write_packet(BaumChardev *baum, const uint8_t *buf, int len)
-{
- Chardev *chr = CHARDEV(baum);
- uint8_t io_buf[1 + 2 * len], *cur = io_buf;
- int room;
- *cur++ = ESC;
- while (len--)
- if ((*cur++ = *buf++) == ESC)
- *cur++ = ESC;
- room = qemu_chr_be_can_write(chr);
- len = cur - io_buf;
- if (len <= room) {
- /* Fits */
- qemu_chr_be_write(chr, io_buf, len);
- } else {
- int first;
- uint8_t out;
- /* Can't fit all, send what can be, and store the rest. */
- qemu_chr_be_write(chr, io_buf, room);
- len -= room;
- cur = io_buf + room;
- if (len > BUF_SIZE - baum->out_buf_used) {
- /* Can't even store it, drop the previous data... */
- assert(len <= BUF_SIZE);
- baum->out_buf_used = 0;
- baum->out_buf_ptr = 0;
- }
- out = baum->out_buf_ptr;
- baum->out_buf_used += len;
- first = BUF_SIZE - baum->out_buf_ptr;
- if (len > first) {
- memcpy(baum->out_buf + out, cur, first);
- out = 0;
- len -= first;
- cur += first;
- }
- memcpy(baum->out_buf + out, cur, len);
- }
-}
-
-/* Called when the other end seems to have a wrong idea of our display size */
-static void baum_cellCount_timer_cb(void *opaque)
-{
- BaumChardev *baum = BAUM_CHARDEV(opaque);
- uint8_t cell_count[] = { BAUM_RSP_CellCount, baum->x * baum->y };
- DPRINTF("Timeout waiting for DisplayData, sending cell count\n");
- baum_write_packet(baum, cell_count, sizeof(cell_count));
-}
-
-/* Try to interpret a whole incoming packet */
-static int baum_eat_packet(BaumChardev *baum, const uint8_t *buf, int len)
-{
- const uint8_t *cur = buf;
- uint8_t req = 0;
-
- if (!len--)
- return 0;
- if (*cur++ != ESC) {
- while (*cur != ESC) {
- if (!len--)
- return 0;
- cur++;
- }
- DPRINTF("Dropped %td bytes!\n", cur - buf);
- }
-
-#define EAT(c) do {\
- if (!len--) \
- return 0; \
- if ((c = *cur++) == ESC) { \
- if (!len--) \
- return 0; \
- if (*cur++ != ESC) { \
- DPRINTF("Broken packet %#2x, tossing\n", req); \
- if (timer_pending(baum->cellCount_timer)) { \
- timer_del(baum->cellCount_timer); \
- baum_cellCount_timer_cb(baum); \
- } \
- return (cur - 2 - buf); \
- } \
- } \
-} while (0)
-
- EAT(req);
- switch (req) {
- case BAUM_REQ_DisplayData:
- {
- uint8_t cells[baum->x * baum->y], c;
- uint8_t text[baum->x * baum->y];
- uint8_t zero[baum->x * baum->y];
- int cursor = BRLAPI_CURSOR_OFF;
- int i;
-
- /* Allow 100ms to complete the DisplayData packet */
- timer_mod(baum->cellCount_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
- NANOSECONDS_PER_SECOND / 10);
- for (i = 0; i < baum->x * baum->y ; i++) {
- EAT(c);
- cells[i] = c;
- if ((c & (BRLAPI_DOT7|BRLAPI_DOT8))
- == (BRLAPI_DOT7|BRLAPI_DOT8)) {
- cursor = i + 1;
- c &= ~(BRLAPI_DOT7|BRLAPI_DOT8);
- }
- c = nabcc_translation[DOTS2ASCII][c];
- if (!c) {
- c = '?';
- }
- text[i] = c;
- }
- timer_del(baum->cellCount_timer);
-
- memset(zero, 0, sizeof(zero));
-
- brlapi_writeArguments_t wa = {
- .displayNumber = BRLAPI_DISPLAY_DEFAULT,
- .regionBegin = 1,
- .regionSize = baum->x * baum->y,
- .text = (char *)text,
- .textSize = baum->x * baum->y,
- .andMask = zero,
- .orMask = cells,
- .cursor = cursor,
- .charset = (char *)"ISO-8859-1",
- };
-
- if (brlapi__write(baum->brlapi, &wa) == -1)
- brlapi_perror("baum brlapi_write");
- break;
- }
- case BAUM_REQ_SetMode:
- {
- uint8_t mode, setting;
- DPRINTF("SetMode\n");
- EAT(mode);
- EAT(setting);
- /* ignore */
- break;
- }
- case BAUM_REQ_SetProtocol:
- {
- uint8_t protocol;
- DPRINTF("SetProtocol\n");
- EAT(protocol);
- /* ignore */
- break;
- }
- case BAUM_REQ_GetDeviceIdentity:
- {
- uint8_t identity[17] = { BAUM_RSP_DeviceIdentity,
- 'B','a','u','m',' ','V','a','r','i','o' };
- DPRINTF("GetDeviceIdentity\n");
- identity[11] = '0' + baum->x / 10;
- identity[12] = '0' + baum->x % 10;
- baum_write_packet(baum, identity, sizeof(identity));
- break;
- }
- case BAUM_REQ_GetVersionNumber:
- {
- uint8_t version[] = { BAUM_RSP_VersionNumber, 1 }; /* ? */
- DPRINTF("GetVersionNumber\n");
- baum_write_packet(baum, version, sizeof(version));
- break;
- }
- case BAUM_REQ_GetSerialNumber:
- {
- uint8_t serial[] = { BAUM_RSP_SerialNumber,
- '0','0','0','0','0','0','0','0' };
- DPRINTF("GetSerialNumber\n");
- baum_write_packet(baum, serial, sizeof(serial));
- break;
- }
- case BAUM_REQ_GetKeys:
- {
- DPRINTF("Get%0#2x\n", req);
- /* ignore */
- break;
- }
- default:
- DPRINTF("unrecognized request %0#2x\n", req);
- do
- if (!len--)
- return 0;
- while (*cur++ != ESC);
- cur--;
- break;
- }
- return cur - buf;
-}
-
-/* The other end is writing some data. Store it and try to interpret */
-static int baum_chr_write(Chardev *chr, const uint8_t *buf, int len)
-{
- BaumChardev *baum = BAUM_CHARDEV(chr);
- int tocopy, cur, eaten, orig_len = len;
-
- if (!len)
- return 0;
- if (!baum->brlapi)
- return len;
- if (!baum_deferred_init(baum))
- return len;
-
- while (len) {
- /* Complete our buffer as much as possible */
- tocopy = len;
- if (tocopy > BUF_SIZE - baum->in_buf_used)
- tocopy = BUF_SIZE - baum->in_buf_used;
-
- memcpy(baum->in_buf + baum->in_buf_used, buf, tocopy);
- baum->in_buf_used += tocopy;
- buf += tocopy;
- len -= tocopy;
-
- /* Interpret it as much as possible */
- cur = 0;
- while (cur < baum->in_buf_used &&
- (eaten = baum_eat_packet(baum, baum->in_buf + cur, baum->in_buf_used - cur)))
- cur += eaten;
-
- /* Shift the remainder */
- if (cur) {
- memmove(baum->in_buf, baum->in_buf + cur, baum->in_buf_used - cur);
- baum->in_buf_used -= cur;
- }
-
- /* And continue if any data left */
- }
- return orig_len;
-}
-
-/* Send the key code to the other end */
-static void baum_send_key(BaumChardev *baum, uint8_t type, uint8_t value)
-{
- uint8_t packet[] = { type, value };
- DPRINTF("writing key %x %x\n", type, value);
- baum_write_packet(baum, packet, sizeof(packet));
-}
-
-static void baum_send_key2(BaumChardev *baum, uint8_t type, uint8_t value,
- uint8_t value2)
-{
- uint8_t packet[] = { type, value, value2 };
- DPRINTF("writing key %x %x\n", type, value);
- baum_write_packet(baum, packet, sizeof(packet));
-}
-
-/* We got some data on the BrlAPI socket */
-static void baum_chr_read(void *opaque)
-{
- BaumChardev *baum = BAUM_CHARDEV(opaque);
- brlapi_keyCode_t code;
- int ret;
- if (!baum->brlapi)
- return;
- if (!baum_deferred_init(baum))
- return;
- while ((ret = brlapi__readKey(baum->brlapi, 0, &code)) == 1) {
- DPRINTF("got key %"BRLAPI_PRIxKEYCODE"\n", code);
- /* Emulate */
- switch (code & BRLAPI_KEY_TYPE_MASK) {
- case BRLAPI_KEY_TYPE_CMD:
- switch (code & BRLAPI_KEY_CMD_BLK_MASK) {
- case BRLAPI_KEY_CMD_ROUTE:
- baum_send_key(baum, BAUM_RSP_RoutingKey, (code & BRLAPI_KEY_CMD_ARG_MASK)+1);
- baum_send_key(baum, BAUM_RSP_RoutingKey, 0);
- break;
- case 0:
- switch (code & BRLAPI_KEY_CMD_ARG_MASK) {
- case BRLAPI_KEY_CMD_FWINLT:
- baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2);
- baum_send_key(baum, BAUM_RSP_TopKeys, 0);
- break;
- case BRLAPI_KEY_CMD_FWINRT:
- baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR2);
- baum_send_key(baum, BAUM_RSP_TopKeys, 0);
- break;
- case BRLAPI_KEY_CMD_LNUP:
- baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR1);
- baum_send_key(baum, BAUM_RSP_TopKeys, 0);
- break;
- case BRLAPI_KEY_CMD_LNDN:
- baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR3);
- baum_send_key(baum, BAUM_RSP_TopKeys, 0);
- break;
- case BRLAPI_KEY_CMD_TOP:
- baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL1|BAUM_TR1);
- baum_send_key(baum, BAUM_RSP_TopKeys, 0);
- break;
- case BRLAPI_KEY_CMD_BOT:
- baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL3|BAUM_TR3);
- baum_send_key(baum, BAUM_RSP_TopKeys, 0);
- break;
- case BRLAPI_KEY_CMD_TOP_LEFT:
- baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR1);
- baum_send_key(baum, BAUM_RSP_TopKeys, 0);
- break;
- case BRLAPI_KEY_CMD_BOT_LEFT:
- baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR3);
- baum_send_key(baum, BAUM_RSP_TopKeys, 0);
- break;
- case BRLAPI_KEY_CMD_HOME:
- baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR1|BAUM_TR3);
- baum_send_key(baum, BAUM_RSP_TopKeys, 0);
- break;
- case BRLAPI_KEY_CMD_PREFMENU:
- baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL1|BAUM_TL3|BAUM_TR1);
- baum_send_key(baum, BAUM_RSP_TopKeys, 0);
- break;
- }
- }
- break;
- case BRLAPI_KEY_TYPE_SYM:
- {
- brlapi_keyCode_t keysym = code & BRLAPI_KEY_CODE_MASK;
- if (keysym < 0x100) {
- uint8_t dots = nabcc_translation[ASCII2DOTS][keysym];
- if (dots) {
- baum_send_key2(baum, BAUM_RSP_EntryKeys, 0, dots);
- baum_send_key2(baum, BAUM_RSP_EntryKeys, 0, 0);
- }
- }
- break;
- }
- }
- }
- if (ret == -1 && (brlapi_errno != BRLAPI_ERROR_LIBCERR || errno != EINTR)) {
- brlapi_perror("baum: brlapi_readKey");
- brlapi__closeConnection(baum->brlapi);
- g_free(baum->brlapi);
- baum->brlapi = NULL;
- }
-}
-
-static void char_braille_finalize(Object *obj)
-{
- BaumChardev *baum = BAUM_CHARDEV(obj);
-
- timer_free(baum->cellCount_timer);
- if (baum->brlapi) {
- brlapi__closeConnection(baum->brlapi);
- g_free(baum->brlapi);
- }
-}
-
-static void baum_chr_open(Chardev *chr,
- ChardevBackend *backend,
- bool *be_opened,
- Error **errp)
-{
- BaumChardev *baum = BAUM_CHARDEV(chr);
- brlapi_handle_t *handle;
-
- handle = g_malloc0(brlapi_getHandleSize());
- baum->brlapi = handle;
-
- baum->brlapi_fd = brlapi__openConnection(handle, NULL, NULL);
- if (baum->brlapi_fd == -1) {
- error_setg(errp, "brlapi__openConnection: %s",
- brlapi_strerror(brlapi_error_location()));
- g_free(handle);
- return;
- }
- baum->deferred_init = 0;
-
- baum->cellCount_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, baum_cellCount_timer_cb, baum);
-
- qemu_set_fd_handler(baum->brlapi_fd, baum_chr_read, NULL, baum);
-}
-
-static void char_braille_class_init(ObjectClass *oc, void *data)
-{
- ChardevClass *cc = CHARDEV_CLASS(oc);
-
- cc->open = baum_chr_open;
- cc->chr_write = baum_chr_write;
- cc->chr_accept_input = baum_chr_accept_input;
-}
-
-static const TypeInfo char_braille_type_info = {
- .name = TYPE_CHARDEV_BRAILLE,
- .parent = TYPE_CHARDEV,
- .instance_size = sizeof(BaumChardev),
- .instance_finalize = char_braille_finalize,
- .class_init = char_braille_class_init,
-};
-
-static void register_types(void)
-{
- type_register_static(&char_braille_type_info);
-}
-
-type_init(register_types);
generated by cgit v1.2.1 (git 2.18.0) at 2024-06-19 16:13:06 +0000