From 55f4e4a5ec657a017e3bf75299ad71fd1c968dd3 Mon Sep 17 00:00:00 2001 From: The Android Open Source Project Date: Tue, 21 Oct 2008 07:00:00 -0700 Subject: Initial Contribution --- hw/pckbd.c | 370 ------------------------------------------------------------- 1 file changed, 370 deletions(-) delete mode 100644 hw/pckbd.c (limited to 'hw/pckbd.c') diff --git a/hw/pckbd.c b/hw/pckbd.c deleted file mode 100644 index 3c41e5f..0000000 --- a/hw/pckbd.c +++ /dev/null @@ -1,370 +0,0 @@ -/* - * QEMU PC keyboard emulation - * - * Copyright (c) 2003 Fabrice Bellard - * - * 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 "vl.h" - -/* debug PC keyboard */ -//#define DEBUG_KBD - -/* debug PC keyboard : only mouse */ -//#define DEBUG_MOUSE - -/* Keyboard Controller Commands */ -#define KBD_CCMD_READ_MODE 0x20 /* Read mode bits */ -#define KBD_CCMD_WRITE_MODE 0x60 /* Write mode bits */ -#define KBD_CCMD_GET_VERSION 0xA1 /* Get controller version */ -#define KBD_CCMD_MOUSE_DISABLE 0xA7 /* Disable mouse interface */ -#define KBD_CCMD_MOUSE_ENABLE 0xA8 /* Enable mouse interface */ -#define KBD_CCMD_TEST_MOUSE 0xA9 /* Mouse interface test */ -#define KBD_CCMD_SELF_TEST 0xAA /* Controller self test */ -#define KBD_CCMD_KBD_TEST 0xAB /* Keyboard interface test */ -#define KBD_CCMD_KBD_DISABLE 0xAD /* Keyboard interface disable */ -#define KBD_CCMD_KBD_ENABLE 0xAE /* Keyboard interface enable */ -#define KBD_CCMD_READ_INPORT 0xC0 /* read input port */ -#define KBD_CCMD_READ_OUTPORT 0xD0 /* read output port */ -#define KBD_CCMD_WRITE_OUTPORT 0xD1 /* write output port */ -#define KBD_CCMD_WRITE_OBUF 0xD2 -#define KBD_CCMD_WRITE_AUX_OBUF 0xD3 /* Write to output buffer as if - initiated by the auxiliary device */ -#define KBD_CCMD_WRITE_MOUSE 0xD4 /* Write the following byte to the mouse */ -#define KBD_CCMD_DISABLE_A20 0xDD /* HP vectra only ? */ -#define KBD_CCMD_ENABLE_A20 0xDF /* HP vectra only ? */ -#define KBD_CCMD_RESET 0xFE - -/* Keyboard Commands */ -#define KBD_CMD_SET_LEDS 0xED /* Set keyboard leds */ -#define KBD_CMD_ECHO 0xEE -#define KBD_CMD_GET_ID 0xF2 /* get keyboard ID */ -#define KBD_CMD_SET_RATE 0xF3 /* Set typematic rate */ -#define KBD_CMD_ENABLE 0xF4 /* Enable scanning */ -#define KBD_CMD_RESET_DISABLE 0xF5 /* reset and disable scanning */ -#define KBD_CMD_RESET_ENABLE 0xF6 /* reset and enable scanning */ -#define KBD_CMD_RESET 0xFF /* Reset */ - -/* Keyboard Replies */ -#define KBD_REPLY_POR 0xAA /* Power on reset */ -#define KBD_REPLY_ACK 0xFA /* Command ACK */ -#define KBD_REPLY_RESEND 0xFE /* Command NACK, send the cmd again */ - -/* Status Register Bits */ -#define KBD_STAT_OBF 0x01 /* Keyboard output buffer full */ -#define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */ -#define KBD_STAT_SELFTEST 0x04 /* Self test successful */ -#define KBD_STAT_CMD 0x08 /* Last write was a command write (0=data) */ -#define KBD_STAT_UNLOCKED 0x10 /* Zero if keyboard locked */ -#define KBD_STAT_MOUSE_OBF 0x20 /* Mouse output buffer full */ -#define KBD_STAT_GTO 0x40 /* General receive/xmit timeout */ -#define KBD_STAT_PERR 0x80 /* Parity error */ - -/* Controller Mode Register Bits */ -#define KBD_MODE_KBD_INT 0x01 /* Keyboard data generate IRQ1 */ -#define KBD_MODE_MOUSE_INT 0x02 /* Mouse data generate IRQ12 */ -#define KBD_MODE_SYS 0x04 /* The system flag (?) */ -#define KBD_MODE_NO_KEYLOCK 0x08 /* The keylock doesn't affect the keyboard if set */ -#define KBD_MODE_DISABLE_KBD 0x10 /* Disable keyboard interface */ -#define KBD_MODE_DISABLE_MOUSE 0x20 /* Disable mouse interface */ -#define KBD_MODE_KCC 0x40 /* Scan code conversion to PC format */ -#define KBD_MODE_RFU 0x80 - -/* Mouse Commands */ -#define AUX_SET_SCALE11 0xE6 /* Set 1:1 scaling */ -#define AUX_SET_SCALE21 0xE7 /* Set 2:1 scaling */ -#define AUX_SET_RES 0xE8 /* Set resolution */ -#define AUX_GET_SCALE 0xE9 /* Get scaling factor */ -#define AUX_SET_STREAM 0xEA /* Set stream mode */ -#define AUX_POLL 0xEB /* Poll */ -#define AUX_RESET_WRAP 0xEC /* Reset wrap mode */ -#define AUX_SET_WRAP 0xEE /* Set wrap mode */ -#define AUX_SET_REMOTE 0xF0 /* Set remote mode */ -#define AUX_GET_TYPE 0xF2 /* Get type */ -#define AUX_SET_SAMPLE 0xF3 /* Set sample rate */ -#define AUX_ENABLE_DEV 0xF4 /* Enable aux device */ -#define AUX_DISABLE_DEV 0xF5 /* Disable aux device */ -#define AUX_SET_DEFAULT 0xF6 -#define AUX_RESET 0xFF /* Reset aux device */ -#define AUX_ACK 0xFA /* Command byte ACK. */ - -#define MOUSE_STATUS_REMOTE 0x40 -#define MOUSE_STATUS_ENABLED 0x20 -#define MOUSE_STATUS_SCALE21 0x10 - -#define KBD_QUEUE_SIZE 256 - -#define KBD_PENDING_KBD 1 -#define KBD_PENDING_AUX 2 - -typedef struct KBDState { - uint8_t write_cmd; /* if non zero, write data to port 60 is expected */ - uint8_t status; - uint8_t mode; - /* Bitmask of devices with data available. */ - uint8_t pending; - void *kbd; - void *mouse; -} KBDState; - -KBDState kbd_state; - -/* update irq and KBD_STAT_[MOUSE_]OBF */ -/* XXX: not generating the irqs if KBD_MODE_DISABLE_KBD is set may be - incorrect, but it avoids having to simulate exact delays */ -static void kbd_update_irq(KBDState *s) -{ - int irq12_level, irq1_level; - - irq1_level = 0; - irq12_level = 0; - s->status &= ~(KBD_STAT_OBF | KBD_STAT_MOUSE_OBF); - if (s->pending) { - s->status |= KBD_STAT_OBF; - /* kdb data takes priority over aux data. */ - if (s->pending == KBD_PENDING_AUX) { - s->status |= KBD_STAT_MOUSE_OBF; - if (s->mode & KBD_MODE_MOUSE_INT) - irq12_level = 1; - } else { - if ((s->mode & KBD_MODE_KBD_INT) && - !(s->mode & KBD_MODE_DISABLE_KBD)) - irq1_level = 1; - } - } - pic_set_irq(1, irq1_level); - pic_set_irq(12, irq12_level); -} - -static void kbd_update_kbd_irq(void *opaque, int level) -{ - KBDState *s = (KBDState *)opaque; - - if (level) - s->pending |= KBD_PENDING_KBD; - else - s->pending &= ~KBD_PENDING_KBD; - kbd_update_irq(s); -} - -static void kbd_update_aux_irq(void *opaque, int level) -{ - KBDState *s = (KBDState *)opaque; - - if (level) - s->pending |= KBD_PENDING_AUX; - else - s->pending &= ~KBD_PENDING_AUX; - kbd_update_irq(s); -} - -static uint32_t kbd_read_status(void *opaque, uint32_t addr) -{ - KBDState *s = opaque; - int val; - val = s->status; -#if defined(DEBUG_KBD) - printf("kbd: read status=0x%02x\n", val); -#endif - return val; -} - -static void kbd_queue(KBDState *s, int b, int aux) -{ - if (aux) - ps2_queue(s->mouse, b); - else - ps2_queue(s->kbd, b); -} - -static void kbd_write_command(void *opaque, uint32_t addr, uint32_t val) -{ - KBDState *s = opaque; - -#ifdef DEBUG_KBD - printf("kbd: write cmd=0x%02x\n", val); -#endif - switch(val) { - case KBD_CCMD_READ_MODE: - kbd_queue(s, s->mode, 0); - break; - case KBD_CCMD_WRITE_MODE: - case KBD_CCMD_WRITE_OBUF: - case KBD_CCMD_WRITE_AUX_OBUF: - case KBD_CCMD_WRITE_MOUSE: - case KBD_CCMD_WRITE_OUTPORT: - s->write_cmd = val; - break; - case KBD_CCMD_MOUSE_DISABLE: - s->mode |= KBD_MODE_DISABLE_MOUSE; - break; - case KBD_CCMD_MOUSE_ENABLE: - s->mode &= ~KBD_MODE_DISABLE_MOUSE; - break; - case KBD_CCMD_TEST_MOUSE: - kbd_queue(s, 0x00, 0); - break; - case KBD_CCMD_SELF_TEST: - s->status |= KBD_STAT_SELFTEST; - kbd_queue(s, 0x55, 0); - break; - case KBD_CCMD_KBD_TEST: - kbd_queue(s, 0x00, 0); - break; - case KBD_CCMD_KBD_DISABLE: - s->mode |= KBD_MODE_DISABLE_KBD; - kbd_update_irq(s); - break; - case KBD_CCMD_KBD_ENABLE: - s->mode &= ~KBD_MODE_DISABLE_KBD; - kbd_update_irq(s); - break; - case KBD_CCMD_READ_INPORT: - kbd_queue(s, 0x00, 0); - break; - case KBD_CCMD_READ_OUTPORT: - /* XXX: check that */ -#ifdef TARGET_I386 - val = 0x01 | (ioport_get_a20() << 1); -#else - val = 0x01; -#endif - if (s->status & KBD_STAT_OBF) - val |= 0x10; - if (s->status & KBD_STAT_MOUSE_OBF) - val |= 0x20; - kbd_queue(s, val, 0); - break; -#ifdef TARGET_I386 - case KBD_CCMD_ENABLE_A20: - ioport_set_a20(1); - break; - case KBD_CCMD_DISABLE_A20: - ioport_set_a20(0); - break; -#endif - case KBD_CCMD_RESET: - qemu_system_reset_request(); - break; - case 0xff: - /* ignore that - I don't know what is its use */ - break; - default: - fprintf(stderr, "qemu: unsupported keyboard cmd=0x%02x\n", val); - break; - } -} - -static uint32_t kbd_read_data(void *opaque, uint32_t addr) -{ - KBDState *s = opaque; - - if (s->pending == KBD_PENDING_AUX) - return ps2_read_data(s->mouse); - - return ps2_read_data(s->kbd); -} - -void kbd_write_data(void *opaque, uint32_t addr, uint32_t val) -{ - KBDState *s = opaque; - -#ifdef DEBUG_KBD - printf("kbd: write data=0x%02x\n", val); -#endif - - switch(s->write_cmd) { - case 0: - ps2_write_keyboard(s->kbd, val); - break; - case KBD_CCMD_WRITE_MODE: - s->mode = val; - ps2_keyboard_set_translation(s->kbd, (s->mode & KBD_MODE_KCC) != 0); - /* ??? */ - kbd_update_irq(s); - break; - case KBD_CCMD_WRITE_OBUF: - kbd_queue(s, val, 0); - break; - case KBD_CCMD_WRITE_AUX_OBUF: - kbd_queue(s, val, 1); - break; - case KBD_CCMD_WRITE_OUTPORT: -#ifdef TARGET_I386 - ioport_set_a20((val >> 1) & 1); -#endif - if (!(val & 1)) { - qemu_system_reset_request(); - } - break; - case KBD_CCMD_WRITE_MOUSE: - ps2_write_mouse(s->mouse, val); - break; - default: - break; - } - s->write_cmd = 0; -} - -static void kbd_reset(void *opaque) -{ - KBDState *s = opaque; - - s->mode = KBD_MODE_KBD_INT | KBD_MODE_MOUSE_INT; - s->status = KBD_STAT_CMD | KBD_STAT_UNLOCKED; -} - -static void kbd_save(QEMUFile* f, void* opaque) -{ - KBDState *s = (KBDState*)opaque; - - qemu_put_8s(f, &s->write_cmd); - qemu_put_8s(f, &s->status); - qemu_put_8s(f, &s->mode); - qemu_put_8s(f, &s->pending); -} - -static int kbd_load(QEMUFile* f, void* opaque, int version_id) -{ - KBDState *s = (KBDState*)opaque; - - if (version_id != 3) - return -EINVAL; - qemu_get_8s(f, &s->write_cmd); - qemu_get_8s(f, &s->status); - qemu_get_8s(f, &s->mode); - qemu_get_8s(f, &s->pending); - return 0; -} - -void kbd_init(void) -{ - KBDState *s = &kbd_state; - - kbd_reset(s); - register_savevm("pckbd", 0, 3, kbd_save, kbd_load, s); - register_ioport_read(0x60, 1, 1, kbd_read_data, s); - register_ioport_write(0x60, 1, 1, kbd_write_data, s); - register_ioport_read(0x64, 1, 1, kbd_read_status, s); - register_ioport_write(0x64, 1, 1, kbd_write_command, s); - - s->kbd = ps2_kbd_init(kbd_update_kbd_irq, s); - s->mouse = ps2_mouse_init(kbd_update_aux_irq, s); - qemu_register_reset(kbd_reset, s); -} -- cgit v1.1