root / hw / pckbd.c @ fb6cf1d0
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/*
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* QEMU PC keyboard emulation
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*
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* Copyright (c) 2003 Fabrice Bellard
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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 "vl.h" |
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|
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/* debug PC keyboard */
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//#define DEBUG_KBD
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|
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/* debug PC keyboard : only mouse */
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//#define DEBUG_MOUSE
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/* Keyboard Controller Commands */
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#define KBD_CCMD_READ_MODE 0x20 /* Read mode bits */ |
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#define KBD_CCMD_WRITE_MODE 0x60 /* Write mode bits */ |
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#define KBD_CCMD_GET_VERSION 0xA1 /* Get controller version */ |
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#define KBD_CCMD_MOUSE_DISABLE 0xA7 /* Disable mouse interface */ |
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#define KBD_CCMD_MOUSE_ENABLE 0xA8 /* Enable mouse interface */ |
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#define KBD_CCMD_TEST_MOUSE 0xA9 /* Mouse interface test */ |
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#define KBD_CCMD_SELF_TEST 0xAA /* Controller self test */ |
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#define KBD_CCMD_KBD_TEST 0xAB /* Keyboard interface test */ |
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#define KBD_CCMD_KBD_DISABLE 0xAD /* Keyboard interface disable */ |
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#define KBD_CCMD_KBD_ENABLE 0xAE /* Keyboard interface enable */ |
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#define KBD_CCMD_READ_INPORT 0xC0 /* read input port */ |
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#define KBD_CCMD_READ_OUTPORT 0xD0 /* read output port */ |
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#define KBD_CCMD_WRITE_OUTPORT 0xD1 /* write output port */ |
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#define KBD_CCMD_WRITE_OBUF 0xD2 |
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#define KBD_CCMD_WRITE_AUX_OBUF 0xD3 /* Write to output buffer as if |
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initiated by the auxiliary device */
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#define KBD_CCMD_WRITE_MOUSE 0xD4 /* Write the following byte to the mouse */ |
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#define KBD_CCMD_DISABLE_A20 0xDD /* HP vectra only ? */ |
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#define KBD_CCMD_ENABLE_A20 0xDF /* HP vectra only ? */ |
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#define KBD_CCMD_RESET 0xFE |
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|
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/* Keyboard Commands */
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#define KBD_CMD_SET_LEDS 0xED /* Set keyboard leds */ |
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#define KBD_CMD_ECHO 0xEE |
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#define KBD_CMD_GET_ID 0xF2 /* get keyboard ID */ |
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#define KBD_CMD_SET_RATE 0xF3 /* Set typematic rate */ |
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#define KBD_CMD_ENABLE 0xF4 /* Enable scanning */ |
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#define KBD_CMD_RESET_DISABLE 0xF5 /* reset and disable scanning */ |
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#define KBD_CMD_RESET_ENABLE 0xF6 /* reset and enable scanning */ |
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#define KBD_CMD_RESET 0xFF /* Reset */ |
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|
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/* Keyboard Replies */
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#define KBD_REPLY_POR 0xAA /* Power on reset */ |
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#define KBD_REPLY_ACK 0xFA /* Command ACK */ |
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#define KBD_REPLY_RESEND 0xFE /* Command NACK, send the cmd again */ |
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|
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/* Status Register Bits */
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#define KBD_STAT_OBF 0x01 /* Keyboard output buffer full */ |
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#define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */ |
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#define KBD_STAT_SELFTEST 0x04 /* Self test successful */ |
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#define KBD_STAT_CMD 0x08 /* Last write was a command write (0=data) */ |
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#define KBD_STAT_UNLOCKED 0x10 /* Zero if keyboard locked */ |
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#define KBD_STAT_MOUSE_OBF 0x20 /* Mouse output buffer full */ |
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#define KBD_STAT_GTO 0x40 /* General receive/xmit timeout */ |
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#define KBD_STAT_PERR 0x80 /* Parity error */ |
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|
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/* Controller Mode Register Bits */
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#define KBD_MODE_KBD_INT 0x01 /* Keyboard data generate IRQ1 */ |
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#define KBD_MODE_MOUSE_INT 0x02 /* Mouse data generate IRQ12 */ |
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#define KBD_MODE_SYS 0x04 /* The system flag (?) */ |
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#define KBD_MODE_NO_KEYLOCK 0x08 /* The keylock doesn't affect the keyboard if set */ |
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#define KBD_MODE_DISABLE_KBD 0x10 /* Disable keyboard interface */ |
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#define KBD_MODE_DISABLE_MOUSE 0x20 /* Disable mouse interface */ |
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#define KBD_MODE_KCC 0x40 /* Scan code conversion to PC format */ |
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#define KBD_MODE_RFU 0x80 |
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|
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/* Mouse Commands */
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#define AUX_SET_SCALE11 0xE6 /* Set 1:1 scaling */ |
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#define AUX_SET_SCALE21 0xE7 /* Set 2:1 scaling */ |
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#define AUX_SET_RES 0xE8 /* Set resolution */ |
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#define AUX_GET_SCALE 0xE9 /* Get scaling factor */ |
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#define AUX_SET_STREAM 0xEA /* Set stream mode */ |
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#define AUX_POLL 0xEB /* Poll */ |
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#define AUX_RESET_WRAP 0xEC /* Reset wrap mode */ |
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#define AUX_SET_WRAP 0xEE /* Set wrap mode */ |
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#define AUX_SET_REMOTE 0xF0 /* Set remote mode */ |
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#define AUX_GET_TYPE 0xF2 /* Get type */ |
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#define AUX_SET_SAMPLE 0xF3 /* Set sample rate */ |
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#define AUX_ENABLE_DEV 0xF4 /* Enable aux device */ |
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#define AUX_DISABLE_DEV 0xF5 /* Disable aux device */ |
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#define AUX_SET_DEFAULT 0xF6 |
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#define AUX_RESET 0xFF /* Reset aux device */ |
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#define AUX_ACK 0xFA /* Command byte ACK. */ |
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|
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#define MOUSE_STATUS_REMOTE 0x40 |
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#define MOUSE_STATUS_ENABLED 0x20 |
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#define MOUSE_STATUS_SCALE21 0x10 |
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|
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#define KBD_QUEUE_SIZE 256 |
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typedef struct { |
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uint8_t aux[KBD_QUEUE_SIZE]; |
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uint8_t data[KBD_QUEUE_SIZE]; |
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int rptr, wptr, count;
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} KBDQueue; |
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typedef struct KBDState { |
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KBDQueue queue; |
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uint8_t write_cmd; /* if non zero, write data to port 60 is expected */
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uint8_t status; |
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uint8_t mode; |
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/* keyboard state */
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int kbd_write_cmd;
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int scan_enabled;
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/* mouse state */
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int mouse_write_cmd;
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uint8_t mouse_status; |
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uint8_t mouse_resolution; |
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uint8_t mouse_sample_rate; |
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uint8_t mouse_wrap; |
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uint8_t mouse_type; /* 0 = PS2, 3 = IMPS/2, 4 = IMEX */
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uint8_t mouse_detect_state; |
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int mouse_dx; /* current values, needed for 'poll' mode */ |
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int mouse_dy;
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int mouse_dz;
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uint8_t mouse_buttons; |
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} KBDState; |
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KBDState kbd_state; |
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int reset_requested;
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|
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/* update irq and KBD_STAT_[MOUSE_]OBF */
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/* XXX: not generating the irqs if KBD_MODE_DISABLE_KBD is set may be
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incorrect, but it avoids having to simulate exact delays */
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static void kbd_update_irq(KBDState *s) |
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{
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KBDQueue *q = &s->queue; |
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int irq12_level, irq1_level;
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irq1_level = 0;
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irq12_level = 0;
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s->status &= ~(KBD_STAT_OBF | KBD_STAT_MOUSE_OBF); |
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if (q->count != 0) { |
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s->status |= KBD_STAT_OBF; |
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if (q->aux[q->rptr]) {
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s->status |= KBD_STAT_MOUSE_OBF; |
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if (s->mode & KBD_MODE_MOUSE_INT)
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irq12_level = 1;
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} else {
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if ((s->mode & KBD_MODE_KBD_INT) &&
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!(s->mode & KBD_MODE_DISABLE_KBD)) |
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irq1_level = 1;
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} |
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} |
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pic_set_irq(1, irq1_level);
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pic_set_irq(12, irq12_level);
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} |
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static void kbd_queue(KBDState *s, int b, int aux) |
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{
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KBDQueue *q = &s->queue; |
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#if defined(DEBUG_MOUSE) || defined(DEBUG_KBD)
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if (aux)
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printf("mouse event: 0x%02x\n", b);
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#ifdef DEBUG_KBD
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else
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printf("kbd event: 0x%02x\n", b);
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#endif
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#endif
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if (q->count >= KBD_QUEUE_SIZE)
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return;
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q->aux[q->wptr] = aux; |
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q->data[q->wptr] = b; |
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if (++q->wptr == KBD_QUEUE_SIZE)
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q->wptr = 0;
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q->count++; |
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kbd_update_irq(s); |
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} |
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|
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void kbd_put_keycode(int keycode) |
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{
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KBDState *s = &kbd_state; |
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kbd_queue(s, keycode, 0);
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} |
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static uint32_t kbd_read_status(void *opaque, uint32_t addr) |
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{
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KBDState *s = opaque; |
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int val;
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val = s->status; |
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#if defined(DEBUG_KBD)
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printf("kbd: read status=0x%02x\n", val);
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#endif
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return val;
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} |
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static void kbd_write_command(void *opaque, uint32_t addr, uint32_t val) |
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{
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KBDState *s = opaque; |
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#ifdef DEBUG_KBD
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printf("kbd: write cmd=0x%02x\n", val);
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#endif
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switch(val) {
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case KBD_CCMD_READ_MODE:
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kbd_queue(s, s->mode, 0);
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break;
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case KBD_CCMD_WRITE_MODE:
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case KBD_CCMD_WRITE_OBUF:
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case KBD_CCMD_WRITE_AUX_OBUF:
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case KBD_CCMD_WRITE_MOUSE:
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case KBD_CCMD_WRITE_OUTPORT:
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s->write_cmd = val; |
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break;
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case KBD_CCMD_MOUSE_DISABLE:
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s->mode |= KBD_MODE_DISABLE_MOUSE; |
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break;
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case KBD_CCMD_MOUSE_ENABLE:
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s->mode &= ~KBD_MODE_DISABLE_MOUSE; |
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break;
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case KBD_CCMD_TEST_MOUSE:
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kbd_queue(s, 0x00, 0); |
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break;
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case KBD_CCMD_SELF_TEST:
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s->status |= KBD_STAT_SELFTEST; |
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kbd_queue(s, 0x55, 0); |
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break;
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case KBD_CCMD_KBD_TEST:
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kbd_queue(s, 0x00, 0); |
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break;
|
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case KBD_CCMD_KBD_DISABLE:
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s->mode |= KBD_MODE_DISABLE_KBD; |
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kbd_update_irq(s); |
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break;
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case KBD_CCMD_KBD_ENABLE:
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s->mode &= ~KBD_MODE_DISABLE_KBD; |
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kbd_update_irq(s); |
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break;
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case KBD_CCMD_READ_INPORT:
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kbd_queue(s, 0x00, 0); |
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break;
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case KBD_CCMD_READ_OUTPORT:
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/* XXX: check that */
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#ifdef TARGET_I386
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val = 0x01 | (((cpu_single_env->a20_mask >> 20) & 1) << 1); |
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#else
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val = 0x01;
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#endif
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if (s->status & KBD_STAT_OBF)
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val |= 0x10;
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if (s->status & KBD_STAT_MOUSE_OBF)
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val |= 0x20;
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kbd_queue(s, val, 0);
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break;
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#ifdef TARGET_I386
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case KBD_CCMD_ENABLE_A20:
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cpu_x86_set_a20(cpu_single_env, 1);
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break;
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case KBD_CCMD_DISABLE_A20:
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cpu_x86_set_a20(cpu_single_env, 0);
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break;
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#endif
|
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case KBD_CCMD_RESET:
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reset_requested = 1;
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cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT); |
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break;
|
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case 0xff: |
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/* ignore that - I don't know what is its use */
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break;
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default:
|
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fprintf(stderr, "qemu: unsupported keyboard cmd=0x%02x\n", val);
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break;
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} |
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} |
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|
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static uint32_t kbd_read_data(void *opaque, uint32_t addr) |
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{
|
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KBDState *s = opaque; |
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KBDQueue *q; |
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int val, index, aux;
|
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|
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q = &s->queue; |
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if (q->count == 0) { |
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/* NOTE: if no data left, we return the last keyboard one
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(needed for EMM386) */
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/* XXX: need a timer to do things correctly */
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index = q->rptr - 1;
|
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if (index < 0) |
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index = KBD_QUEUE_SIZE - 1;
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val = q->data[index]; |
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} else {
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aux = q->aux[q->rptr]; |
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val = q->data[q->rptr]; |
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if (++q->rptr == KBD_QUEUE_SIZE)
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q->rptr = 0;
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q->count--; |
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/* reading deasserts IRQ */
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if (aux)
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pic_set_irq(12, 0); |
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else
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pic_set_irq(1, 0); |
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} |
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/* reassert IRQs if data left */
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kbd_update_irq(s); |
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#ifdef DEBUG_KBD
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printf("kbd: read data=0x%02x\n", val);
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#endif
|
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return val;
|
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} |
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|
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static void kbd_reset_keyboard(KBDState *s) |
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{
|
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s->scan_enabled = 1;
|
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} |
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|
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static void kbd_write_keyboard(KBDState *s, int val) |
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{
|
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switch(s->kbd_write_cmd) {
|
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default:
|
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case -1: |
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switch(val) {
|
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case 0x00: |
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kbd_queue(s, KBD_REPLY_ACK, 0);
|
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break;
|
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case 0x05: |
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kbd_queue(s, KBD_REPLY_RESEND, 0);
|
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break;
|
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case KBD_CMD_GET_ID:
|
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kbd_queue(s, KBD_REPLY_ACK, 0);
|
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kbd_queue(s, 0xab, 0); |
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kbd_queue(s, 0x83, 0); |
| 345 |
break;
|
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case KBD_CMD_ECHO:
|
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kbd_queue(s, KBD_CMD_ECHO, 0);
|
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break;
|
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case KBD_CMD_ENABLE:
|
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s->scan_enabled = 1;
|
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kbd_queue(s, KBD_REPLY_ACK, 0);
|
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break;
|
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case KBD_CMD_SET_LEDS:
|
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case KBD_CMD_SET_RATE:
|
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s->kbd_write_cmd = val; |
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kbd_queue(s, KBD_REPLY_ACK, 0);
|
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break;
|
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case KBD_CMD_RESET_DISABLE:
|
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kbd_reset_keyboard(s); |
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s->scan_enabled = 0;
|
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kbd_queue(s, KBD_REPLY_ACK, 0);
|
| 362 |
break;
|
| 363 |
case KBD_CMD_RESET_ENABLE:
|
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kbd_reset_keyboard(s); |
| 365 |
s->scan_enabled = 1;
|
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kbd_queue(s, KBD_REPLY_ACK, 0);
|
| 367 |
break;
|
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case KBD_CMD_RESET:
|
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kbd_reset_keyboard(s); |
| 370 |
kbd_queue(s, KBD_REPLY_ACK, 0);
|
| 371 |
kbd_queue(s, KBD_REPLY_POR, 0);
|
| 372 |
break;
|
| 373 |
default:
|
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kbd_queue(s, KBD_REPLY_ACK, 0);
|
| 375 |
break;
|
| 376 |
} |
| 377 |
break;
|
| 378 |
case KBD_CMD_SET_LEDS:
|
| 379 |
kbd_queue(s, KBD_REPLY_ACK, 0);
|
| 380 |
s->kbd_write_cmd = -1;
|
| 381 |
break;
|
| 382 |
case KBD_CMD_SET_RATE:
|
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kbd_queue(s, KBD_REPLY_ACK, 0);
|
| 384 |
s->kbd_write_cmd = -1;
|
| 385 |
break;
|
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} |
| 387 |
} |
| 388 |
|
| 389 |
static void kbd_mouse_send_packet(KBDState *s) |
| 390 |
{
|
| 391 |
unsigned int b; |
| 392 |
int dx1, dy1, dz1;
|
| 393 |
|
| 394 |
dx1 = s->mouse_dx; |
| 395 |
dy1 = s->mouse_dy; |
| 396 |
dz1 = s->mouse_dz; |
| 397 |
/* XXX: increase range to 8 bits ? */
|
| 398 |
if (dx1 > 127) |
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dx1 = 127;
|
| 400 |
else if (dx1 < -127) |
| 401 |
dx1 = -127;
|
| 402 |
if (dy1 > 127) |
| 403 |
dy1 = 127;
|
| 404 |
else if (dy1 < -127) |
| 405 |
dy1 = -127;
|
| 406 |
b = 0x08 | ((dx1 < 0) << 4) | ((dy1 < 0) << 5) | (s->mouse_buttons & 0x07); |
| 407 |
kbd_queue(s, b, 1);
|
| 408 |
kbd_queue(s, dx1 & 0xff, 1); |
| 409 |
kbd_queue(s, dy1 & 0xff, 1); |
| 410 |
/* extra byte for IMPS/2 or IMEX */
|
| 411 |
switch(s->mouse_type) {
|
| 412 |
default:
|
| 413 |
break;
|
| 414 |
case 3: |
| 415 |
if (dz1 > 127) |
| 416 |
dz1 = 127;
|
| 417 |
else if (dz1 < -127) |
| 418 |
dz1 = -127;
|
| 419 |
kbd_queue(s, dz1 & 0xff, 1); |
| 420 |
break;
|
| 421 |
case 4: |
| 422 |
if (dz1 > 7) |
| 423 |
dz1 = 7;
|
| 424 |
else if (dz1 < -7) |
| 425 |
dz1 = -7;
|
| 426 |
b = (dz1 & 0x0f) | ((s->mouse_buttons & 0x18) << 1); |
| 427 |
kbd_queue(s, b, 1);
|
| 428 |
break;
|
| 429 |
} |
| 430 |
|
| 431 |
/* update deltas */
|
| 432 |
s->mouse_dx -= dx1; |
| 433 |
s->mouse_dy -= dy1; |
| 434 |
s->mouse_dz -= dz1; |
| 435 |
} |
| 436 |
|
| 437 |
void kbd_mouse_event(int dx, int dy, int dz, int buttons_state) |
| 438 |
{
|
| 439 |
KBDState *s = &kbd_state; |
| 440 |
|
| 441 |
/* check if deltas are recorded when disabled */
|
| 442 |
if (!(s->mouse_status & MOUSE_STATUS_ENABLED))
|
| 443 |
return;
|
| 444 |
|
| 445 |
s->mouse_dx += dx; |
| 446 |
s->mouse_dy -= dy; |
| 447 |
s->mouse_dz += dz; |
| 448 |
/* XXX: SDL sometimes generates nul events: we delete them */
|
| 449 |
if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0 && |
| 450 |
s->mouse_buttons == buttons_state) |
| 451 |
return;
|
| 452 |
s->mouse_buttons = buttons_state; |
| 453 |
|
| 454 |
if (!(s->mouse_status & MOUSE_STATUS_REMOTE) &&
|
| 455 |
(s->queue.count < (KBD_QUEUE_SIZE - 16))) {
|
| 456 |
for(;;) {
|
| 457 |
/* if not remote, send event. Multiple events are sent if
|
| 458 |
too big deltas */
|
| 459 |
kbd_mouse_send_packet(s); |
| 460 |
if (s->mouse_dx == 0 && s->mouse_dy == 0 && s->mouse_dz == 0) |
| 461 |
break;
|
| 462 |
} |
| 463 |
} |
| 464 |
} |
| 465 |
|
| 466 |
static void kbd_write_mouse(KBDState *s, int val) |
| 467 |
{
|
| 468 |
#ifdef DEBUG_MOUSE
|
| 469 |
printf("kbd: write mouse 0x%02x\n", val);
|
| 470 |
#endif
|
| 471 |
switch(s->mouse_write_cmd) {
|
| 472 |
default:
|
| 473 |
case -1: |
| 474 |
/* mouse command */
|
| 475 |
if (s->mouse_wrap) {
|
| 476 |
if (val == AUX_RESET_WRAP) {
|
| 477 |
s->mouse_wrap = 0;
|
| 478 |
kbd_queue(s, AUX_ACK, 1);
|
| 479 |
return;
|
| 480 |
} else if (val != AUX_RESET) { |
| 481 |
kbd_queue(s, val, 1);
|
| 482 |
return;
|
| 483 |
} |
| 484 |
} |
| 485 |
switch(val) {
|
| 486 |
case AUX_SET_SCALE11:
|
| 487 |
s->mouse_status &= ~MOUSE_STATUS_SCALE21; |
| 488 |
kbd_queue(s, AUX_ACK, 1);
|
| 489 |
break;
|
| 490 |
case AUX_SET_SCALE21:
|
| 491 |
s->mouse_status |= MOUSE_STATUS_SCALE21; |
| 492 |
kbd_queue(s, AUX_ACK, 1);
|
| 493 |
break;
|
| 494 |
case AUX_SET_STREAM:
|
| 495 |
s->mouse_status &= ~MOUSE_STATUS_REMOTE; |
| 496 |
kbd_queue(s, AUX_ACK, 1);
|
| 497 |
break;
|
| 498 |
case AUX_SET_WRAP:
|
| 499 |
s->mouse_wrap = 1;
|
| 500 |
kbd_queue(s, AUX_ACK, 1);
|
| 501 |
break;
|
| 502 |
case AUX_SET_REMOTE:
|
| 503 |
s->mouse_status |= MOUSE_STATUS_REMOTE; |
| 504 |
kbd_queue(s, AUX_ACK, 1);
|
| 505 |
break;
|
| 506 |
case AUX_GET_TYPE:
|
| 507 |
kbd_queue(s, AUX_ACK, 1);
|
| 508 |
kbd_queue(s, s->mouse_type, 1);
|
| 509 |
break;
|
| 510 |
case AUX_SET_RES:
|
| 511 |
case AUX_SET_SAMPLE:
|
| 512 |
s->mouse_write_cmd = val; |
| 513 |
kbd_queue(s, AUX_ACK, 1);
|
| 514 |
break;
|
| 515 |
case AUX_GET_SCALE:
|
| 516 |
kbd_queue(s, AUX_ACK, 1);
|
| 517 |
kbd_queue(s, s->mouse_status, 1);
|
| 518 |
kbd_queue(s, s->mouse_resolution, 1);
|
| 519 |
kbd_queue(s, s->mouse_sample_rate, 1);
|
| 520 |
break;
|
| 521 |
case AUX_POLL:
|
| 522 |
kbd_queue(s, AUX_ACK, 1);
|
| 523 |
kbd_mouse_send_packet(s); |
| 524 |
break;
|
| 525 |
case AUX_ENABLE_DEV:
|
| 526 |
s->mouse_status |= MOUSE_STATUS_ENABLED; |
| 527 |
kbd_queue(s, AUX_ACK, 1);
|
| 528 |
break;
|
| 529 |
case AUX_DISABLE_DEV:
|
| 530 |
s->mouse_status &= ~MOUSE_STATUS_ENABLED; |
| 531 |
kbd_queue(s, AUX_ACK, 1);
|
| 532 |
break;
|
| 533 |
case AUX_SET_DEFAULT:
|
| 534 |
s->mouse_sample_rate = 100;
|
| 535 |
s->mouse_resolution = 2;
|
| 536 |
s->mouse_status = 0;
|
| 537 |
kbd_queue(s, AUX_ACK, 1);
|
| 538 |
break;
|
| 539 |
case AUX_RESET:
|
| 540 |
s->mouse_sample_rate = 100;
|
| 541 |
s->mouse_resolution = 2;
|
| 542 |
s->mouse_status = 0;
|
| 543 |
kbd_queue(s, AUX_ACK, 1);
|
| 544 |
kbd_queue(s, 0xaa, 1); |
| 545 |
kbd_queue(s, s->mouse_type, 1);
|
| 546 |
break;
|
| 547 |
default:
|
| 548 |
break;
|
| 549 |
} |
| 550 |
break;
|
| 551 |
case AUX_SET_SAMPLE:
|
| 552 |
s->mouse_sample_rate = val; |
| 553 |
#if 0
|
| 554 |
/* detect IMPS/2 or IMEX */
|
| 555 |
switch(s->mouse_detect_state) {
|
| 556 |
default:
|
| 557 |
case 0:
|
| 558 |
if (val == 200)
|
| 559 |
s->mouse_detect_state = 1;
|
| 560 |
break;
|
| 561 |
case 1:
|
| 562 |
if (val == 100)
|
| 563 |
s->mouse_detect_state = 2;
|
| 564 |
else if (val == 200)
|
| 565 |
s->mouse_detect_state = 3;
|
| 566 |
else
|
| 567 |
s->mouse_detect_state = 0;
|
| 568 |
break;
|
| 569 |
case 2:
|
| 570 |
if (val == 80)
|
| 571 |
s->mouse_type = 3; /* IMPS/2 */
|
| 572 |
s->mouse_detect_state = 0;
|
| 573 |
break;
|
| 574 |
case 3:
|
| 575 |
if (val == 80)
|
| 576 |
s->mouse_type = 4; /* IMEX */
|
| 577 |
s->mouse_detect_state = 0;
|
| 578 |
break;
|
| 579 |
}
|
| 580 |
#endif
|
| 581 |
kbd_queue(s, AUX_ACK, 1);
|
| 582 |
s->mouse_write_cmd = -1;
|
| 583 |
break;
|
| 584 |
case AUX_SET_RES:
|
| 585 |
s->mouse_resolution = val; |
| 586 |
kbd_queue(s, AUX_ACK, 1);
|
| 587 |
s->mouse_write_cmd = -1;
|
| 588 |
break;
|
| 589 |
} |
| 590 |
} |
| 591 |
|
| 592 |
void kbd_write_data(void *opaque, uint32_t addr, uint32_t val) |
| 593 |
{
|
| 594 |
KBDState *s = opaque; |
| 595 |
|
| 596 |
#ifdef DEBUG_KBD
|
| 597 |
printf("kbd: write data=0x%02x\n", val);
|
| 598 |
#endif
|
| 599 |
|
| 600 |
switch(s->write_cmd) {
|
| 601 |
case 0: |
| 602 |
kbd_write_keyboard(s, val); |
| 603 |
break;
|
| 604 |
case KBD_CCMD_WRITE_MODE:
|
| 605 |
s->mode = val; |
| 606 |
kbd_update_irq(s); |
| 607 |
break;
|
| 608 |
case KBD_CCMD_WRITE_OBUF:
|
| 609 |
kbd_queue(s, val, 0);
|
| 610 |
break;
|
| 611 |
case KBD_CCMD_WRITE_AUX_OBUF:
|
| 612 |
kbd_queue(s, val, 1);
|
| 613 |
break;
|
| 614 |
case KBD_CCMD_WRITE_OUTPORT:
|
| 615 |
#ifdef TARGET_I386
|
| 616 |
cpu_x86_set_a20(cpu_single_env, (val >> 1) & 1); |
| 617 |
#endif
|
| 618 |
if (!(val & 1)) { |
| 619 |
reset_requested = 1;
|
| 620 |
cpu_interrupt(cpu_single_env, CPU_INTERRUPT_EXIT); |
| 621 |
} |
| 622 |
break;
|
| 623 |
case KBD_CCMD_WRITE_MOUSE:
|
| 624 |
kbd_write_mouse(s, val); |
| 625 |
break;
|
| 626 |
default:
|
| 627 |
break;
|
| 628 |
} |
| 629 |
s->write_cmd = 0;
|
| 630 |
} |
| 631 |
|
| 632 |
void kbd_reset(KBDState *s)
|
| 633 |
{
|
| 634 |
KBDQueue *q; |
| 635 |
|
| 636 |
s->kbd_write_cmd = -1;
|
| 637 |
s->mouse_write_cmd = -1;
|
| 638 |
s->mode = KBD_MODE_KBD_INT | KBD_MODE_MOUSE_INT; |
| 639 |
s->status = KBD_STAT_CMD | KBD_STAT_UNLOCKED; |
| 640 |
q = &s->queue; |
| 641 |
q->rptr = 0;
|
| 642 |
q->wptr = 0;
|
| 643 |
q->count = 0;
|
| 644 |
} |
| 645 |
|
| 646 |
void kbd_init(void) |
| 647 |
{
|
| 648 |
KBDState *s = &kbd_state; |
| 649 |
|
| 650 |
kbd_reset(s); |
| 651 |
register_ioport_read(0x60, 1, 1, kbd_read_data, s); |
| 652 |
register_ioport_write(0x60, 1, 1, kbd_write_data, s); |
| 653 |
register_ioport_read(0x64, 1, 1, kbd_read_status, s); |
| 654 |
register_ioport_write(0x64, 1, 1, kbd_write_command, s); |
| 655 |
} |