Bochs/bochs/iodev/keyboard.h
2021-01-31 10:50:53 +00:00

201 lines
6.2 KiB
C++

/////////////////////////////////////////////////////////////////////////
// $Id$
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2002-2021 The Bochs Project
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#ifndef _PCKEY_H
#define _PCKEY_H
// these keywords should only be used in keyboard.cc
#if BX_USE_KEY_SMF
# define BX_KEY_SMF static
# define BX_KEY_THIS theKeyboard->
#else
# define BX_KEY_SMF
# define BX_KEY_THIS this->
#endif
#define MOUSE_MODE_RESET 10
#define MOUSE_MODE_STREAM 11
#define MOUSE_MODE_REMOTE 12
#define MOUSE_MODE_WRAP 13
class bx_keyb_c : public bx_devmodel_c {
public:
bx_keyb_c();
virtual ~bx_keyb_c();
// implement bx_devmodel_c interface
virtual void init(void);
virtual void reset(unsigned type);
virtual void register_state(void);
virtual void after_restore_state(void);
private:
static bool gen_scancode_static(void *dev, Bit32u key);
BX_KEY_SMF void gen_scancode(Bit32u key);
static Bit8u get_elements_static(void *dev);
BX_KEY_SMF Bit8u get_elements(void);
BX_KEY_SMF Bit8u get_kbd_enable(void);
BX_KEY_SMF void create_mouse_packet(bool force_enq);
BX_KEY_SMF unsigned periodic(Bit32u usec_delta);
static Bit32u read_handler(void *this_ptr, Bit32u address, unsigned io_len);
static void write_handler(void *this_ptr, Bit32u address, Bit32u value, unsigned io_len);
#if !BX_USE_KEY_SMF
void write(Bit32u address, Bit32u value, unsigned io_len);
Bit32u read(Bit32u address, unsigned io_len);
#endif
struct {
struct {
/* status bits matching the status port*/
bool pare; // Bit7, 1= parity error from keyboard/mouse - ignored.
bool tim; // Bit6, 1= timeout from keyboard - ignored.
bool auxb; // Bit5, 1= mouse data waiting for CPU to read.
bool keyl; // Bit4, 1= keyswitch in lock position - ignored.
bool c_d; // Bit3, 1=command to port 64h, 0=data to port 60h
bool sysf; // Bit2,
bool inpb; // Bit1,
bool outb; // Bit0, 1= keyboard data or mouse data ready for CPU
// check aux to see which. Or just keyboard
// data before AT style machines
/* internal to our version of the keyboard controller */
bool kbd_clock_enabled;
bool aux_clock_enabled;
bool allow_irq1;
bool allow_irq12;
Bit8u kbd_output_buffer;
Bit8u aux_output_buffer;
Bit8u last_comm;
Bit8u expecting_port60h;
Bit8u expecting_mouse_parameter;
Bit8u last_mouse_command;
Bit32u timer_pending;
bool irq1_requested;
bool irq12_requested;
bool scancodes_translate;
bool expecting_scancodes_set;
Bit8u current_scancodes_set;
bool bat_in_progress;
Bit8u kbd_type;
} kbd_controller;
struct mouseStruct {
Bit8u type;
Bit8u sample_rate;
Bit8u resolution_cpmm; // resolution in counts per mm
Bit8u scaling;
Bit8u mode;
Bit8u saved_mode; // the mode prior to entering wrap mode
bool enable;
Bit8u get_status_byte ()
{
// top bit is 0 , bit 6 is 1 if remote mode.
Bit8u ret = (Bit8u) ((mode == MOUSE_MODE_REMOTE) ? 0x40 : 0);
ret |= (enable << 5);
ret |= (scaling == 1) ? 0 : (1 << 4);
ret |= ((button_status & 0x1) << 2);
ret |= ((button_status & 0x2) << 0);
return ret;
}
Bit8u get_resolution_byte ()
{
Bit8u ret = 0;
switch (resolution_cpmm) {
case 1:
ret = 0;
break;
case 2:
ret = 1;
break;
case 4:
ret = 2;
break;
case 8:
ret = 3;
break;
default:
genlog->panic("mouse: invalid resolution_cpmm");
};
return ret;
}
Bit8u button_status;
Bit16s delayed_dx;
Bit16s delayed_dy;
Bit16s delayed_dz;
Bit8u im_request;
bool im_mode;
} mouse;
struct {
int num_elements;
Bit8u buffer[BX_KBD_ELEMENTS];
int head;
bool expecting_typematic;
bool expecting_led_write;
Bit8u delay;
Bit8u repeat_rate;
Bit8u led_status;
bool scanning_enabled;
} kbd_internal_buffer;
struct {
int num_elements;
Bit8u buffer[BX_MOUSE_BUFF_SIZE];
int head;
} mouse_internal_buffer;
#define BX_KBD_CONTROLLER_QSIZE 5
Bit8u controller_Q[BX_KBD_CONTROLLER_QSIZE];
unsigned controller_Qsize;
unsigned controller_Qsource; // 0=keyboard, 1=mouse
} s; // State information for saving/loading
BX_KEY_SMF void resetinternals(bool powerup);
BX_KEY_SMF void set_kbd_clock_enable(Bit8u value) BX_CPP_AttrRegparmN(1);
BX_KEY_SMF void set_aux_clock_enable(Bit8u value);
BX_KEY_SMF void kbd_ctrl_to_kbd(Bit8u value);
BX_KEY_SMF void kbd_ctrl_to_mouse(Bit8u value);
BX_KEY_SMF void kbd_enQ(Bit8u scancode);
BX_KEY_SMF void kbd_enQ_imm(Bit8u val);
BX_KEY_SMF void activate_timer(void);
BX_KEY_SMF void controller_enQ(Bit8u data, unsigned source);
BX_KEY_SMF bool mouse_enQ_packet(Bit8u b1, Bit8u b2, Bit8u b3, Bit8u b4);
BX_KEY_SMF void mouse_enQ(Bit8u mouse_data);
static void mouse_enabled_changed_static(void *dev, bool enabled);
void mouse_enabled_changed(bool enabled);
static void mouse_enq_static(void *dev, int delta_x, int delta_y, int delta_z, unsigned button_state, bool absxy);
void mouse_motion(int delta_x, int delta_y, int delta_z, unsigned button_state, bool absxy);
static void timer_handler(void *);
int timer_handle;
};
#endif // #ifndef _PCKEY_H