root / backends / baum.c @ dccfcd0e
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/*
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* QEMU Baum Braille Device
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*
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* Copyright (c) 2008 Samuel Thibault
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu-common.h" |
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#include "sysemu/char.h" |
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#include "qemu/timer.h" |
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#include "hw/usb.h" |
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#include <brlapi.h> |
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#include <brlapi_constants.h> |
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#include <brlapi_keycodes.h> |
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#ifdef CONFIG_SDL
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#include <SDL_syswm.h> |
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#endif
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|
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#if 0
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#define DPRINTF(fmt, ...) \
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printf(fmt, ## __VA_ARGS__)
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#else
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#define DPRINTF(fmt, ...)
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#endif
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|
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#define ESC 0x1B |
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|
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#define BAUM_REQ_DisplayData 0x01 |
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#define BAUM_REQ_GetVersionNumber 0x05 |
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#define BAUM_REQ_GetKeys 0x08 |
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#define BAUM_REQ_SetMode 0x12 |
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#define BAUM_REQ_SetProtocol 0x15 |
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#define BAUM_REQ_GetDeviceIdentity 0x84 |
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#define BAUM_REQ_GetSerialNumber 0x8A |
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|
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#define BAUM_RSP_CellCount 0x01 |
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#define BAUM_RSP_VersionNumber 0x05 |
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#define BAUM_RSP_ModeSetting 0x11 |
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#define BAUM_RSP_CommunicationChannel 0x16 |
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#define BAUM_RSP_PowerdownSignal 0x17 |
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#define BAUM_RSP_HorizontalSensors 0x20 |
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#define BAUM_RSP_VerticalSensors 0x21 |
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#define BAUM_RSP_RoutingKeys 0x22 |
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#define BAUM_RSP_Switches 0x23 |
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#define BAUM_RSP_TopKeys 0x24 |
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#define BAUM_RSP_HorizontalSensor 0x25 |
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#define BAUM_RSP_VerticalSensor 0x26 |
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#define BAUM_RSP_RoutingKey 0x27 |
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#define BAUM_RSP_FrontKeys6 0x28 |
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#define BAUM_RSP_BackKeys6 0x29 |
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#define BAUM_RSP_CommandKeys 0x2B |
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#define BAUM_RSP_FrontKeys10 0x2C |
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#define BAUM_RSP_BackKeys10 0x2D |
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#define BAUM_RSP_EntryKeys 0x33 |
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#define BAUM_RSP_JoyStick 0x34 |
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#define BAUM_RSP_ErrorCode 0x40 |
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#define BAUM_RSP_InfoBlock 0x42 |
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#define BAUM_RSP_DeviceIdentity 0x84 |
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#define BAUM_RSP_SerialNumber 0x8A |
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#define BAUM_RSP_BluetoothName 0x8C |
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|
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#define BAUM_TL1 0x01 |
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#define BAUM_TL2 0x02 |
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#define BAUM_TL3 0x04 |
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#define BAUM_TR1 0x08 |
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#define BAUM_TR2 0x10 |
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#define BAUM_TR3 0x20 |
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|
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#define BUF_SIZE 256 |
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|
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typedef struct { |
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CharDriverState *chr; |
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|
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brlapi_handle_t *brlapi; |
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int brlapi_fd;
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unsigned int x, y; |
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|
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uint8_t in_buf[BUF_SIZE]; |
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uint8_t in_buf_used; |
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uint8_t out_buf[BUF_SIZE]; |
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uint8_t out_buf_used, out_buf_ptr; |
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|
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QEMUTimer *cellCount_timer; |
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} BaumDriverState; |
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|
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/* Let's assume NABCC by default */
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static const uint8_t nabcc_translation[256] = { |
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[0] = ' ', |
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#ifndef BRLAPI_DOTS
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#define BRLAPI_DOTS(d1,d2,d3,d4,d5,d6,d7,d8) \
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((d1?BRLAPI_DOT1:0)|\
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(d2?BRLAPI_DOT2:0)|\
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(d3?BRLAPI_DOT3:0)|\
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(d4?BRLAPI_DOT4:0)|\
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(d5?BRLAPI_DOT5:0)|\
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(d6?BRLAPI_DOT6:0)|\
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(d7?BRLAPI_DOT7:0)|\
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(d8?BRLAPI_DOT8:0))
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#endif
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[BRLAPI_DOTS(1,0,0,0,0,0,0,0)] = 'a', |
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[BRLAPI_DOTS(1,1,0,0,0,0,0,0)] = 'b', |
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[BRLAPI_DOTS(1,0,0,1,0,0,0,0)] = 'c', |
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[BRLAPI_DOTS(1,0,0,1,1,0,0,0)] = 'd', |
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[BRLAPI_DOTS(1,0,0,0,1,0,0,0)] = 'e', |
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[BRLAPI_DOTS(1,1,0,1,0,0,0,0)] = 'f', |
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[BRLAPI_DOTS(1,1,0,1,1,0,0,0)] = 'g', |
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[BRLAPI_DOTS(1,1,0,0,1,0,0,0)] = 'h', |
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[BRLAPI_DOTS(0,1,0,1,0,0,0,0)] = 'i', |
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[BRLAPI_DOTS(0,1,0,1,1,0,0,0)] = 'j', |
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[BRLAPI_DOTS(1,0,1,0,0,0,0,0)] = 'k', |
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[BRLAPI_DOTS(1,1,1,0,0,0,0,0)] = 'l', |
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[BRLAPI_DOTS(1,0,1,1,0,0,0,0)] = 'm', |
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[BRLAPI_DOTS(1,0,1,1,1,0,0,0)] = 'n', |
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[BRLAPI_DOTS(1,0,1,0,1,0,0,0)] = 'o', |
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[BRLAPI_DOTS(1,1,1,1,0,0,0,0)] = 'p', |
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[BRLAPI_DOTS(1,1,1,1,1,0,0,0)] = 'q', |
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[BRLAPI_DOTS(1,1,1,0,1,0,0,0)] = 'r', |
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[BRLAPI_DOTS(0,1,1,1,0,0,0,0)] = 's', |
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[BRLAPI_DOTS(0,1,1,1,1,0,0,0)] = 't', |
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[BRLAPI_DOTS(1,0,1,0,0,1,0,0)] = 'u', |
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[BRLAPI_DOTS(1,1,1,0,0,1,0,0)] = 'v', |
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[BRLAPI_DOTS(0,1,0,1,1,1,0,0)] = 'w', |
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[BRLAPI_DOTS(1,0,1,1,0,1,0,0)] = 'x', |
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[BRLAPI_DOTS(1,0,1,1,1,1,0,0)] = 'y', |
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[BRLAPI_DOTS(1,0,1,0,1,1,0,0)] = 'z', |
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|
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[BRLAPI_DOTS(1,0,0,0,0,0,1,0)] = 'A', |
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[BRLAPI_DOTS(1,1,0,0,0,0,1,0)] = 'B', |
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[BRLAPI_DOTS(1,0,0,1,0,0,1,0)] = 'C', |
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[BRLAPI_DOTS(1,0,0,1,1,0,1,0)] = 'D', |
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[BRLAPI_DOTS(1,0,0,0,1,0,1,0)] = 'E', |
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[BRLAPI_DOTS(1,1,0,1,0,0,1,0)] = 'F', |
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[BRLAPI_DOTS(1,1,0,1,1,0,1,0)] = 'G', |
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[BRLAPI_DOTS(1,1,0,0,1,0,1,0)] = 'H', |
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[BRLAPI_DOTS(0,1,0,1,0,0,1,0)] = 'I', |
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[BRLAPI_DOTS(0,1,0,1,1,0,1,0)] = 'J', |
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[BRLAPI_DOTS(1,0,1,0,0,0,1,0)] = 'K', |
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[BRLAPI_DOTS(1,1,1,0,0,0,1,0)] = 'L', |
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[BRLAPI_DOTS(1,0,1,1,0,0,1,0)] = 'M', |
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[BRLAPI_DOTS(1,0,1,1,1,0,1,0)] = 'N', |
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[BRLAPI_DOTS(1,0,1,0,1,0,1,0)] = 'O', |
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[BRLAPI_DOTS(1,1,1,1,0,0,1,0)] = 'P', |
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[BRLAPI_DOTS(1,1,1,1,1,0,1,0)] = 'Q', |
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[BRLAPI_DOTS(1,1,1,0,1,0,1,0)] = 'R', |
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[BRLAPI_DOTS(0,1,1,1,0,0,1,0)] = 'S', |
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[BRLAPI_DOTS(0,1,1,1,1,0,1,0)] = 'T', |
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[BRLAPI_DOTS(1,0,1,0,0,1,1,0)] = 'U', |
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[BRLAPI_DOTS(1,1,1,0,0,1,1,0)] = 'V', |
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[BRLAPI_DOTS(0,1,0,1,1,1,1,0)] = 'W', |
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[BRLAPI_DOTS(1,0,1,1,0,1,1,0)] = 'X', |
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[BRLAPI_DOTS(1,0,1,1,1,1,1,0)] = 'Y', |
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[BRLAPI_DOTS(1,0,1,0,1,1,1,0)] = 'Z', |
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|
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[BRLAPI_DOTS(0,0,1,0,1,1,0,0)] = '0', |
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[BRLAPI_DOTS(0,1,0,0,0,0,0,0)] = '1', |
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[BRLAPI_DOTS(0,1,1,0,0,0,0,0)] = '2', |
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[BRLAPI_DOTS(0,1,0,0,1,0,0,0)] = '3', |
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[BRLAPI_DOTS(0,1,0,0,1,1,0,0)] = '4', |
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[BRLAPI_DOTS(0,1,0,0,0,1,0,0)] = '5', |
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[BRLAPI_DOTS(0,1,1,0,1,0,0,0)] = '6', |
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[BRLAPI_DOTS(0,1,1,0,1,1,0,0)] = '7', |
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[BRLAPI_DOTS(0,1,1,0,0,1,0,0)] = '8', |
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[BRLAPI_DOTS(0,0,1,0,1,0,0,0)] = '9', |
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|
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[BRLAPI_DOTS(0,0,0,1,0,1,0,0)] = '.', |
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[BRLAPI_DOTS(0,0,1,1,0,1,0,0)] = '+', |
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[BRLAPI_DOTS(0,0,1,0,0,1,0,0)] = '-', |
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[BRLAPI_DOTS(1,0,0,0,0,1,0,0)] = '*', |
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[BRLAPI_DOTS(0,0,1,1,0,0,0,0)] = '/', |
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[BRLAPI_DOTS(1,1,1,0,1,1,0,0)] = '(', |
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[BRLAPI_DOTS(0,1,1,1,1,1,0,0)] = ')', |
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|
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[BRLAPI_DOTS(1,1,1,1,0,1,0,0)] = '&', |
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[BRLAPI_DOTS(0,0,1,1,1,1,0,0)] = '#', |
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|
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[BRLAPI_DOTS(0,0,0,0,0,1,0,0)] = ',', |
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[BRLAPI_DOTS(0,0,0,0,1,1,0,0)] = ';', |
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[BRLAPI_DOTS(1,0,0,0,1,1,0,0)] = ':', |
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[BRLAPI_DOTS(0,1,1,1,0,1,0,0)] = '!', |
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[BRLAPI_DOTS(1,0,0,1,1,1,0,0)] = '?', |
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[BRLAPI_DOTS(0,0,0,0,1,0,0,0)] = '"', |
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[BRLAPI_DOTS(0,0,1,0,0,0,0,0)] ='\'', |
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[BRLAPI_DOTS(0,0,0,1,0,0,0,0)] = '`', |
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[BRLAPI_DOTS(0,0,0,1,1,0,1,0)] = '^', |
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[BRLAPI_DOTS(0,0,0,1,1,0,0,0)] = '~', |
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[BRLAPI_DOTS(0,1,0,1,0,1,1,0)] = '[', |
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[BRLAPI_DOTS(1,1,0,1,1,1,1,0)] = ']', |
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[BRLAPI_DOTS(0,1,0,1,0,1,0,0)] = '{', |
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[BRLAPI_DOTS(1,1,0,1,1,1,0,0)] = '}', |
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[BRLAPI_DOTS(1,1,1,1,1,1,0,0)] = '=', |
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[BRLAPI_DOTS(1,1,0,0,0,1,0,0)] = '<', |
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[BRLAPI_DOTS(0,0,1,1,1,0,0,0)] = '>', |
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[BRLAPI_DOTS(1,1,0,1,0,1,0,0)] = '$', |
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[BRLAPI_DOTS(1,0,0,1,0,1,0,0)] = '%', |
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[BRLAPI_DOTS(0,0,0,1,0,0,1,0)] = '@', |
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[BRLAPI_DOTS(1,1,0,0,1,1,0,0)] = '|', |
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[BRLAPI_DOTS(1,1,0,0,1,1,1,0)] ='\\', |
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[BRLAPI_DOTS(0,0,0,1,1,1,0,0)] = '_', |
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}; |
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|
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/* The serial port can receive more of our data */
|
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static void baum_accept_input(struct CharDriverState *chr) |
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{
|
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BaumDriverState *baum = chr->opaque; |
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int room, first;
|
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|
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if (!baum->out_buf_used)
|
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return;
|
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room = qemu_chr_be_can_write(chr); |
| 226 |
if (!room)
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return;
|
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if (room > baum->out_buf_used)
|
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room = baum->out_buf_used; |
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|
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first = BUF_SIZE - baum->out_buf_ptr; |
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if (room > first) {
|
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qemu_chr_be_write(chr, baum->out_buf + baum->out_buf_ptr, first); |
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baum->out_buf_ptr = 0;
|
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baum->out_buf_used -= first; |
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room -= first; |
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} |
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qemu_chr_be_write(chr, baum->out_buf + baum->out_buf_ptr, room); |
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baum->out_buf_ptr += room; |
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baum->out_buf_used -= room; |
| 241 |
} |
| 242 |
|
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/* We want to send a packet */
|
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static void baum_write_packet(BaumDriverState *baum, const uint8_t *buf, int len) |
| 245 |
{
|
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uint8_t io_buf[1 + 2 * len], *cur = io_buf; |
| 247 |
int room;
|
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*cur++ = ESC; |
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while (len--)
|
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if ((*cur++ = *buf++) == ESC)
|
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*cur++ = ESC; |
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room = qemu_chr_be_can_write(baum->chr); |
| 253 |
len = cur - io_buf; |
| 254 |
if (len <= room) {
|
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/* Fits */
|
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qemu_chr_be_write(baum->chr, io_buf, len); |
| 257 |
} else {
|
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int first;
|
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uint8_t out; |
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/* Can't fit all, send what can be, and store the rest. */
|
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qemu_chr_be_write(baum->chr, io_buf, room); |
| 262 |
len -= room; |
| 263 |
cur = io_buf + room; |
| 264 |
if (len > BUF_SIZE - baum->out_buf_used) {
|
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/* Can't even store it, drop the previous data... */
|
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assert(len <= BUF_SIZE); |
| 267 |
baum->out_buf_used = 0;
|
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baum->out_buf_ptr = 0;
|
| 269 |
} |
| 270 |
out = baum->out_buf_ptr; |
| 271 |
baum->out_buf_used += len; |
| 272 |
first = BUF_SIZE - baum->out_buf_ptr; |
| 273 |
if (len > first) {
|
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memcpy(baum->out_buf + out, cur, first); |
| 275 |
out = 0;
|
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len -= first; |
| 277 |
cur += first; |
| 278 |
} |
| 279 |
memcpy(baum->out_buf + out, cur, len); |
| 280 |
} |
| 281 |
} |
| 282 |
|
| 283 |
/* Called when the other end seems to have a wrong idea of our display size */
|
| 284 |
static void baum_cellCount_timer_cb(void *opaque) |
| 285 |
{
|
| 286 |
BaumDriverState *baum = opaque; |
| 287 |
uint8_t cell_count[] = { BAUM_RSP_CellCount, baum->x * baum->y };
|
| 288 |
DPRINTF("Timeout waiting for DisplayData, sending cell count\n");
|
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baum_write_packet(baum, cell_count, sizeof(cell_count));
|
| 290 |
} |
| 291 |
|
| 292 |
/* Try to interpret a whole incoming packet */
|
| 293 |
static int baum_eat_packet(BaumDriverState *baum, const uint8_t *buf, int len) |
| 294 |
{
|
| 295 |
const uint8_t *cur = buf;
|
| 296 |
uint8_t req = 0;
|
| 297 |
|
| 298 |
if (!len--)
|
| 299 |
return 0; |
| 300 |
if (*cur++ != ESC) {
|
| 301 |
while (*cur != ESC) {
|
| 302 |
if (!len--)
|
| 303 |
return 0; |
| 304 |
cur++; |
| 305 |
} |
| 306 |
DPRINTF("Dropped %d bytes!\n", cur - buf);
|
| 307 |
} |
| 308 |
|
| 309 |
#define EAT(c) do {\ |
| 310 |
if (!len--) \
|
| 311 |
return 0; \ |
| 312 |
if ((c = *cur++) == ESC) { \
|
| 313 |
if (!len--) \
|
| 314 |
return 0; \ |
| 315 |
if (*cur++ != ESC) { \
|
| 316 |
DPRINTF("Broken packet %#2x, tossing\n", req); \
|
| 317 |
if (qemu_timer_pending(baum->cellCount_timer)) { \
|
| 318 |
qemu_del_timer(baum->cellCount_timer); \ |
| 319 |
baum_cellCount_timer_cb(baum); \ |
| 320 |
} \ |
| 321 |
return (cur - 2 - buf); \ |
| 322 |
} \ |
| 323 |
} \ |
| 324 |
} while (0) |
| 325 |
|
| 326 |
EAT(req); |
| 327 |
switch (req) {
|
| 328 |
case BAUM_REQ_DisplayData:
|
| 329 |
{
|
| 330 |
uint8_t cells[baum->x * baum->y], c; |
| 331 |
uint8_t text[baum->x * baum->y]; |
| 332 |
uint8_t zero[baum->x * baum->y]; |
| 333 |
int cursor = BRLAPI_CURSOR_OFF;
|
| 334 |
int i;
|
| 335 |
|
| 336 |
/* Allow 100ms to complete the DisplayData packet */
|
| 337 |
qemu_mod_timer(baum->cellCount_timer, qemu_get_clock_ns(vm_clock) + |
| 338 |
get_ticks_per_sec() / 10);
|
| 339 |
for (i = 0; i < baum->x * baum->y ; i++) { |
| 340 |
EAT(c); |
| 341 |
cells[i] = c; |
| 342 |
if ((c & (BRLAPI_DOT7|BRLAPI_DOT8))
|
| 343 |
== (BRLAPI_DOT7|BRLAPI_DOT8)) {
|
| 344 |
cursor = i + 1;
|
| 345 |
c &= ~(BRLAPI_DOT7|BRLAPI_DOT8); |
| 346 |
} |
| 347 |
if (!(c = nabcc_translation[c]))
|
| 348 |
c = '?';
|
| 349 |
text[i] = c; |
| 350 |
} |
| 351 |
qemu_del_timer(baum->cellCount_timer); |
| 352 |
|
| 353 |
memset(zero, 0, sizeof(zero)); |
| 354 |
|
| 355 |
brlapi_writeArguments_t wa = {
|
| 356 |
.displayNumber = BRLAPI_DISPLAY_DEFAULT, |
| 357 |
.regionBegin = 1,
|
| 358 |
.regionSize = baum->x * baum->y, |
| 359 |
.text = (char *)text,
|
| 360 |
.textSize = baum->x * baum->y, |
| 361 |
.andMask = zero, |
| 362 |
.orMask = cells, |
| 363 |
.cursor = cursor, |
| 364 |
.charset = (char *)"ISO-8859-1", |
| 365 |
}; |
| 366 |
|
| 367 |
if (brlapi__write(baum->brlapi, &wa) == -1) |
| 368 |
brlapi_perror("baum brlapi_write");
|
| 369 |
break;
|
| 370 |
} |
| 371 |
case BAUM_REQ_SetMode:
|
| 372 |
{
|
| 373 |
uint8_t mode, setting; |
| 374 |
DPRINTF("SetMode\n");
|
| 375 |
EAT(mode); |
| 376 |
EAT(setting); |
| 377 |
/* ignore */
|
| 378 |
break;
|
| 379 |
} |
| 380 |
case BAUM_REQ_SetProtocol:
|
| 381 |
{
|
| 382 |
uint8_t protocol; |
| 383 |
DPRINTF("SetProtocol\n");
|
| 384 |
EAT(protocol); |
| 385 |
/* ignore */
|
| 386 |
break;
|
| 387 |
} |
| 388 |
case BAUM_REQ_GetDeviceIdentity:
|
| 389 |
{
|
| 390 |
uint8_t identity[17] = { BAUM_RSP_DeviceIdentity,
|
| 391 |
'B','a','u','m',' ','V','a','r','i','o' }; |
| 392 |
DPRINTF("GetDeviceIdentity\n");
|
| 393 |
identity[11] = '0' + baum->x / 10; |
| 394 |
identity[12] = '0' + baum->x % 10; |
| 395 |
baum_write_packet(baum, identity, sizeof(identity));
|
| 396 |
break;
|
| 397 |
} |
| 398 |
case BAUM_REQ_GetVersionNumber:
|
| 399 |
{
|
| 400 |
uint8_t version[] = { BAUM_RSP_VersionNumber, 1 }; /* ? */
|
| 401 |
DPRINTF("GetVersionNumber\n");
|
| 402 |
baum_write_packet(baum, version, sizeof(version));
|
| 403 |
break;
|
| 404 |
} |
| 405 |
case BAUM_REQ_GetSerialNumber:
|
| 406 |
{
|
| 407 |
uint8_t serial[] = { BAUM_RSP_SerialNumber,
|
| 408 |
'0','0','0','0','0','0','0','0' }; |
| 409 |
DPRINTF("GetSerialNumber\n");
|
| 410 |
baum_write_packet(baum, serial, sizeof(serial));
|
| 411 |
break;
|
| 412 |
} |
| 413 |
case BAUM_REQ_GetKeys:
|
| 414 |
{
|
| 415 |
DPRINTF("Get%0#2x\n", req);
|
| 416 |
/* ignore */
|
| 417 |
break;
|
| 418 |
} |
| 419 |
default:
|
| 420 |
DPRINTF("unrecognized request %0#2x\n", req);
|
| 421 |
do
|
| 422 |
if (!len--)
|
| 423 |
return 0; |
| 424 |
while (*cur++ != ESC);
|
| 425 |
cur--; |
| 426 |
break;
|
| 427 |
} |
| 428 |
return cur - buf;
|
| 429 |
} |
| 430 |
|
| 431 |
/* The other end is writing some data. Store it and try to interpret */
|
| 432 |
static int baum_write(CharDriverState *chr, const uint8_t *buf, int len) |
| 433 |
{
|
| 434 |
BaumDriverState *baum = chr->opaque; |
| 435 |
int tocopy, cur, eaten, orig_len = len;
|
| 436 |
|
| 437 |
if (!len)
|
| 438 |
return 0; |
| 439 |
if (!baum->brlapi)
|
| 440 |
return len;
|
| 441 |
|
| 442 |
while (len) {
|
| 443 |
/* Complete our buffer as much as possible */
|
| 444 |
tocopy = len; |
| 445 |
if (tocopy > BUF_SIZE - baum->in_buf_used)
|
| 446 |
tocopy = BUF_SIZE - baum->in_buf_used; |
| 447 |
|
| 448 |
memcpy(baum->in_buf + baum->in_buf_used, buf, tocopy); |
| 449 |
baum->in_buf_used += tocopy; |
| 450 |
buf += tocopy; |
| 451 |
len -= tocopy; |
| 452 |
|
| 453 |
/* Interpret it as much as possible */
|
| 454 |
cur = 0;
|
| 455 |
while (cur < baum->in_buf_used &&
|
| 456 |
(eaten = baum_eat_packet(baum, baum->in_buf + cur, baum->in_buf_used - cur))) |
| 457 |
cur += eaten; |
| 458 |
|
| 459 |
/* Shift the remainder */
|
| 460 |
if (cur) {
|
| 461 |
memmove(baum->in_buf, baum->in_buf + cur, baum->in_buf_used - cur); |
| 462 |
baum->in_buf_used -= cur; |
| 463 |
} |
| 464 |
|
| 465 |
/* And continue if any data left */
|
| 466 |
} |
| 467 |
return orig_len;
|
| 468 |
} |
| 469 |
|
| 470 |
/* Send the key code to the other end */
|
| 471 |
static void baum_send_key(BaumDriverState *baum, uint8_t type, uint8_t value) { |
| 472 |
uint8_t packet[] = { type, value };
|
| 473 |
DPRINTF("writing key %x %x\n", type, value);
|
| 474 |
baum_write_packet(baum, packet, sizeof(packet));
|
| 475 |
} |
| 476 |
|
| 477 |
/* We got some data on the BrlAPI socket */
|
| 478 |
static void baum_chr_read(void *opaque) |
| 479 |
{
|
| 480 |
BaumDriverState *baum = opaque; |
| 481 |
brlapi_keyCode_t code; |
| 482 |
int ret;
|
| 483 |
if (!baum->brlapi)
|
| 484 |
return;
|
| 485 |
while ((ret = brlapi__readKey(baum->brlapi, 0, &code)) == 1) { |
| 486 |
DPRINTF("got key %"BRLAPI_PRIxKEYCODE"\n", code); |
| 487 |
/* Emulate */
|
| 488 |
switch (code & BRLAPI_KEY_TYPE_MASK) {
|
| 489 |
case BRLAPI_KEY_TYPE_CMD:
|
| 490 |
switch (code & BRLAPI_KEY_CMD_BLK_MASK) {
|
| 491 |
case BRLAPI_KEY_CMD_ROUTE:
|
| 492 |
baum_send_key(baum, BAUM_RSP_RoutingKey, (code & BRLAPI_KEY_CMD_ARG_MASK)+1);
|
| 493 |
baum_send_key(baum, BAUM_RSP_RoutingKey, 0);
|
| 494 |
break;
|
| 495 |
case 0: |
| 496 |
switch (code & BRLAPI_KEY_CMD_ARG_MASK) {
|
| 497 |
case BRLAPI_KEY_CMD_FWINLT:
|
| 498 |
baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2); |
| 499 |
baum_send_key(baum, BAUM_RSP_TopKeys, 0);
|
| 500 |
break;
|
| 501 |
case BRLAPI_KEY_CMD_FWINRT:
|
| 502 |
baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR2); |
| 503 |
baum_send_key(baum, BAUM_RSP_TopKeys, 0);
|
| 504 |
break;
|
| 505 |
case BRLAPI_KEY_CMD_LNUP:
|
| 506 |
baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR1); |
| 507 |
baum_send_key(baum, BAUM_RSP_TopKeys, 0);
|
| 508 |
break;
|
| 509 |
case BRLAPI_KEY_CMD_LNDN:
|
| 510 |
baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TR3); |
| 511 |
baum_send_key(baum, BAUM_RSP_TopKeys, 0);
|
| 512 |
break;
|
| 513 |
case BRLAPI_KEY_CMD_TOP:
|
| 514 |
baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL1|BAUM_TR1); |
| 515 |
baum_send_key(baum, BAUM_RSP_TopKeys, 0);
|
| 516 |
break;
|
| 517 |
case BRLAPI_KEY_CMD_BOT:
|
| 518 |
baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL3|BAUM_TR3); |
| 519 |
baum_send_key(baum, BAUM_RSP_TopKeys, 0);
|
| 520 |
break;
|
| 521 |
case BRLAPI_KEY_CMD_TOP_LEFT:
|
| 522 |
baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR1); |
| 523 |
baum_send_key(baum, BAUM_RSP_TopKeys, 0);
|
| 524 |
break;
|
| 525 |
case BRLAPI_KEY_CMD_BOT_LEFT:
|
| 526 |
baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR3); |
| 527 |
baum_send_key(baum, BAUM_RSP_TopKeys, 0);
|
| 528 |
break;
|
| 529 |
case BRLAPI_KEY_CMD_HOME:
|
| 530 |
baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL2|BAUM_TR1|BAUM_TR3); |
| 531 |
baum_send_key(baum, BAUM_RSP_TopKeys, 0);
|
| 532 |
break;
|
| 533 |
case BRLAPI_KEY_CMD_PREFMENU:
|
| 534 |
baum_send_key(baum, BAUM_RSP_TopKeys, BAUM_TL1|BAUM_TL3|BAUM_TR1); |
| 535 |
baum_send_key(baum, BAUM_RSP_TopKeys, 0);
|
| 536 |
break;
|
| 537 |
} |
| 538 |
} |
| 539 |
break;
|
| 540 |
case BRLAPI_KEY_TYPE_SYM:
|
| 541 |
break;
|
| 542 |
} |
| 543 |
} |
| 544 |
if (ret == -1 && (brlapi_errno != BRLAPI_ERROR_LIBCERR || errno != EINTR)) { |
| 545 |
brlapi_perror("baum: brlapi_readKey");
|
| 546 |
brlapi__closeConnection(baum->brlapi); |
| 547 |
g_free(baum->brlapi); |
| 548 |
baum->brlapi = NULL;
|
| 549 |
} |
| 550 |
} |
| 551 |
|
| 552 |
static void baum_close(struct CharDriverState *chr) |
| 553 |
{
|
| 554 |
BaumDriverState *baum = chr->opaque; |
| 555 |
|
| 556 |
qemu_free_timer(baum->cellCount_timer); |
| 557 |
if (baum->brlapi) {
|
| 558 |
brlapi__closeConnection(baum->brlapi); |
| 559 |
g_free(baum->brlapi); |
| 560 |
} |
| 561 |
g_free(baum); |
| 562 |
} |
| 563 |
|
| 564 |
CharDriverState *chr_baum_init(void)
|
| 565 |
{
|
| 566 |
BaumDriverState *baum; |
| 567 |
CharDriverState *chr; |
| 568 |
brlapi_handle_t *handle; |
| 569 |
#ifdef CONFIG_SDL
|
| 570 |
SDL_SysWMinfo info; |
| 571 |
#endif
|
| 572 |
int tty;
|
| 573 |
|
| 574 |
baum = g_malloc0(sizeof(BaumDriverState));
|
| 575 |
baum->chr = chr = g_malloc0(sizeof(CharDriverState));
|
| 576 |
|
| 577 |
chr->opaque = baum; |
| 578 |
chr->chr_write = baum_write; |
| 579 |
chr->chr_accept_input = baum_accept_input; |
| 580 |
chr->chr_close = baum_close; |
| 581 |
|
| 582 |
handle = g_malloc0(brlapi_getHandleSize()); |
| 583 |
baum->brlapi = handle; |
| 584 |
|
| 585 |
baum->brlapi_fd = brlapi__openConnection(handle, NULL, NULL); |
| 586 |
if (baum->brlapi_fd == -1) { |
| 587 |
brlapi_perror("baum_init: brlapi_openConnection");
|
| 588 |
goto fail_handle;
|
| 589 |
} |
| 590 |
|
| 591 |
baum->cellCount_timer = qemu_new_timer_ns(vm_clock, baum_cellCount_timer_cb, baum); |
| 592 |
|
| 593 |
if (brlapi__getDisplaySize(handle, &baum->x, &baum->y) == -1) { |
| 594 |
brlapi_perror("baum_init: brlapi_getDisplaySize");
|
| 595 |
goto fail;
|
| 596 |
} |
| 597 |
|
| 598 |
#ifdef CONFIG_SDL
|
| 599 |
memset(&info, 0, sizeof(info)); |
| 600 |
SDL_VERSION(&info.version); |
| 601 |
if (SDL_GetWMInfo(&info))
|
| 602 |
tty = info.info.x11.wmwindow; |
| 603 |
else
|
| 604 |
#endif
|
| 605 |
tty = BRLAPI_TTY_DEFAULT; |
| 606 |
|
| 607 |
if (brlapi__enterTtyMode(handle, tty, NULL) == -1) { |
| 608 |
brlapi_perror("baum_init: brlapi_enterTtyMode");
|
| 609 |
goto fail;
|
| 610 |
} |
| 611 |
|
| 612 |
qemu_set_fd_handler(baum->brlapi_fd, baum_chr_read, NULL, baum);
|
| 613 |
|
| 614 |
qemu_chr_be_generic_open(chr); |
| 615 |
|
| 616 |
return chr;
|
| 617 |
|
| 618 |
fail:
|
| 619 |
qemu_free_timer(baum->cellCount_timer); |
| 620 |
brlapi__closeConnection(handle); |
| 621 |
fail_handle:
|
| 622 |
g_free(handle); |
| 623 |
g_free(chr); |
| 624 |
g_free(baum); |
| 625 |
return NULL; |
| 626 |
} |
| 627 |
|
| 628 |
static void register_types(void) |
| 629 |
{
|
| 630 |
register_char_driver_qapi("braille", CHARDEV_BACKEND_KIND_BRAILLE, NULL); |
| 631 |
} |
| 632 |
|
| 633 |
type_init(register_types); |