diff --git a/src/device/CMakeLists.txt b/src/device/CMakeLists.txt index 85339108a..f09051ac9 100644 --- a/src/device/CMakeLists.txt +++ b/src/device/CMakeLists.txt @@ -15,7 +15,7 @@ add_library(dev OBJECT bugger.c hwm.c hwm_lm75.c hwm_lm78.c hwm_gl518sm.c hwm_vt82c686.c ibm_5161.c isamem.c isartc.c ../lpt.c pci_bridge.c - postcard.c serial.c vpc2007.c clock_ics9xxx.c i2c.c i2c_gpio.c + postcard.c serial.c vpc2007.c clock_ics9xxx.c isapnp.c i2c.c i2c_gpio.c smbus_piix4.c keyboard.c keyboard_xt.c keyboard_at.c mouse.c mouse_bus.c mouse_serial.c mouse_ps2.c phoenix_486_jumper.c) diff --git a/src/device/isapnp.c b/src/device/isapnp.c new file mode 100644 index 000000000..9b8ab6923 --- /dev/null +++ b/src/device/isapnp.c @@ -0,0 +1,618 @@ +/* + * 86Box A hypervisor and IBM PC system emulator that specializes in + * running old operating systems and software designed for IBM + * PC systems and compatibles from 1981 through fairly recent + * system designs based on the PCI bus. + * + * This file is part of the 86Box distribution. + * + * Implementation of ISA Plug and Play. + * + * + * + * Author: Miran Grca, + * RichardG, + * + * Copyright 2016-2018 Miran Grca. + * Copyright 2021 RichardG. + */ + +#include +#include +#include +#include +#include +#define HAVE_STDARG_H +#include <86box/86box.h> +#include <86box/device.h> +#include <86box/io.h> +#include <86box/isapnp.h> + + +#define CHECK_CURRENT_LD() if (!dev->current_ld) { \ + isapnp_log("ISAPnP: No logical device selected\n"); \ + break; \ + } + +#define CHECK_CURRENT_CARD() do { \ + card = dev->first_card; \ + while (card) { \ + if (card->state == PNP_STATE_CONFIG) \ + break; \ + card = card->next; \ + } \ + if (!card) { \ + isapnp_log("ISAPnP: No card in CONFIG state\n"); \ + break; \ + } \ + } while (0); + + +static const uint8_t pnp_init_key[32] = { 0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE, + 0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61, + 0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1, + 0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x39 }; +static const device_t isapnp_device; + + +#ifdef ENABLE_ISAPNP_LOG +int isapnp_do_log = ENABLE_ISAPNP_LOG; + + +static void +isapnp_log(const char *fmt, ...) +{ + va_list ap; + + if (isapnp_do_log) { + va_start(ap, fmt); + pclog_ex(fmt, ap); + va_end(ap); + } +} +#else +#define isapnp_log(fmt, ...) +#endif + + +enum { + PNP_STATE_WAIT_FOR_KEY = 0, + PNP_STATE_CONFIG, + PNP_STATE_ISOLATION, + PNP_STATE_SLEEP +}; + +typedef struct _isapnp_device_ { + uint8_t number; + uint8_t regs[256]; + + struct _isapnp_device_ *next; +} isapnp_device_t; + +typedef struct _isapnp_card_ { + uint8_t state, csn, id_checksum, serial_read, serial_read_pair, serial_read_pos, *rom; + uint16_t rom_pos, rom_size; + void *priv; + + /* ISAPnP memory and I/O addresses are awkwardly big endian, so we populate this + structure whenever something on some device changes, and pass it on instead. */ + isapnp_device_config_t config; + void (*config_changed)(uint8_t ld, isapnp_device_config_t *config, void *priv); + void (*csn_changed)(uint8_t csn, void *priv); + uint8_t (*read_vendor_reg)(uint8_t ld, uint8_t reg, void *priv); + void (*write_vendor_reg)(uint8_t ld, uint8_t reg, uint8_t val, void *priv); + + isapnp_device_t *first_ld; + struct _isapnp_card_ *next; +} isapnp_card_t; + +typedef struct { + uint8_t reg, key_pos: 5; + uint16_t read_data_addr; + + isapnp_card_t *first_card, *isolated_card, *current_ld_card; + isapnp_device_t *current_ld; +} isapnp_t; + + +static void +isapnp_device_config_changed(isapnp_t *dev) +{ + /* Ignore device if it hasn't signed up for configuration changes. */ + if (!dev->current_ld_card->config_changed) + return; + + /* Populate config structure, performing endianness conversion as needed. */ + isapnp_card_t *card = dev->current_ld_card; + isapnp_device_t *ld = dev->current_ld; + card->config.activate = ld->regs[0x30] & 0x01; + uint8_t i, reg_base; + for (i = 0; i < 4; i++) { + reg_base = 0x40 + (8 * i); + card->config.mem[i].base = (ld->regs[reg_base] << 16) | (ld->regs[reg_base + 1] << 8); + card->config.mem[i].size = (ld->regs[reg_base + 3] << 16) | (ld->regs[reg_base + 4] << 8); + } + for (i = 0; i < 4; i++) { + reg_base = (i == 0) ? 0x76 : (0x80 + (16 * i)); + card->config.mem32[i].base = (ld->regs[reg_base] << 24) | (ld->regs[reg_base + 1] << 16) | (ld->regs[reg_base + 2] << 8) | ld->regs[reg_base + 3]; + card->config.mem32[i].size = (ld->regs[reg_base + 5] << 24) | (ld->regs[reg_base + 6] << 16) | (ld->regs[reg_base + 7] << 8) | ld->regs[reg_base + 8]; + } + for (i = 0; i < 8; i++) { + reg_base = 0x60 + (2 * i); + card->config.io[i].base = (ld->regs[reg_base] << 8) | ld->regs[reg_base + 1]; + } + for (i = 0; i < 2; i++) { + reg_base = 0x70 + (2 * i); + card->config.irq[i].irq = ld->regs[reg_base]; + card->config.irq[i].level = ld->regs[reg_base + 1] & 0x02; + card->config.irq[i].type = ld->regs[reg_base + 1] & 0x01; + } + for (i = 0; i < 2; i++) { + reg_base = 0x74 + i; + card->config.dma[i].dma = ld->regs[reg_base]; + } + + /* Signal the configuration change. */ + card->config_changed(ld->number, &card->config, card->priv); +} + + +static uint8_t +isapnp_read_rangecheck(uint16_t addr, void *priv) +{ + isapnp_device_t *dev = (isapnp_device_t *) priv; + return (dev->regs[0x31] & 0x01) ? 0x55 : 0xaa; +} + + +static uint8_t +isapnp_read_data(uint16_t addr, void *priv) +{ + isapnp_t *dev = (isapnp_t *) priv; + uint8_t ret = 0xff, bit, next_shift; + isapnp_card_t *card; + + switch (dev->reg) { + case 0x01: /* Serial Isolation */ + card = dev->first_card; + while (card) { + if (card->state == PNP_STATE_ISOLATION) + break; + card = card->next; + } + dev->isolated_card = card; + + if (card) { + if (card->serial_read_pair) { /* second byte (aa/00) */ + card->serial_read <<= 1; + if (!card->serial_read_pos) + card->rom_pos = 0x09; + } else { /* first byte (55/00) */ + if (card->serial_read_pos < 64) { /* reading 64-bit vendor/serial */ + bit = (card->rom[card->serial_read_pos >> 3] >> (card->serial_read_pos & 0x7)) & 0x01; + next_shift = (!!(card->id_checksum & 0x02) ^ !!(card->id_checksum & 0x01) ^ bit) & 0x01; + card->id_checksum >>= 1; + card->id_checksum |= (next_shift << 7); + } else { /* reading 8-bit checksum */ + if (card->serial_read_pos == 64) /* populate ID checksum in ROM */ + card->rom[0x08] = card->id_checksum; + bit = (card->id_checksum >> (card->serial_read_pos & 0x7)) & 0x01; + } + isapnp_log("ISAPnP: Read bit %d of byte %02X (%02X) = %d\n", card->serial_read_pos & 0x7, card->serial_read_pos >> 3, card->rom[card->serial_read_pos >> 3], bit); + card->serial_read = bit ? 0x55 : 0x00; + card->serial_read_pos = (card->serial_read_pos + 1) % 72; + } + card->serial_read_pair ^= 1; + ret = card->serial_read; + } + + break; + + case 0x04: /* Resource Data */ + CHECK_CURRENT_CARD(); + + isapnp_log("ISAPnP: Read resource data index %02X (%02X) from CSN %02X\n", card->rom_pos, card->rom[card->rom_pos], card->csn); + if (card->rom_pos >= card->rom_size) + ret = 0xff; + else + ret = card->rom[card->rom_pos++]; + + break; + + case 0x05: /* Status */ + ret = 0x00; + CHECK_CURRENT_CARD(); + + isapnp_log("ISAPnP: Query status for CSN %02X\n", card->csn); + ret = 0x01; + + break; + + case 0x06: /* Card Select Number */ + ret = 0x00; + CHECK_CURRENT_CARD(); + + isapnp_log("ISAPnP: Query CSN %02X\n", card->csn); + ret = card->csn; + + break; + + case 0x07: /* Logical Device Number */ + ret = 0x00; + CHECK_CURRENT_LD(); + + isapnp_log("ISAPnP: Query LDN for CSN %02X device %02X\n", dev->current_ld_card->csn, dev->current_ld->number); + ret = dev->current_ld->number; + + break; + + case 0x20: case 0x21: case 0x22: case 0x23: + case 0x24: case 0x25: case 0x26: case 0x27: + case 0x28: case 0x29: case 0x2a: case 0x2b: + case 0x2c: case 0x2d: case 0x2e: case 0x2f: + CHECK_CURRENT_CARD(); + isapnp_log("ISAPnP: Read vendor-defined register %02X from CSN %02X\n", dev->reg, card->csn); + if (card->read_vendor_reg) + ret = card->read_vendor_reg(0, dev->reg, card->priv); + break; + + case 0xf0: case 0xf1: case 0xf2: case 0xf3: + case 0xf4: case 0xf5: case 0xf6: case 0xf7: + case 0xf8: case 0xf9: case 0xfa: case 0xfb: + case 0xfc: case 0xfd: case 0xfe: + CHECK_CURRENT_LD(); + isapnp_log("ISAPnP: Read vendor-defined register %02X from CSN %02X device %02X\n", dev->reg, dev->current_ld_card->csn, dev->current_ld->number); + if (dev->current_ld_card->read_vendor_reg) + ret = dev->current_ld_card->read_vendor_reg(dev->current_ld->number, dev->reg, dev->current_ld_card->priv); + break; + + default: + if (dev->reg >= 0x30) { + CHECK_CURRENT_LD(); + isapnp_log("ISAPnP: Read register %02X from CSN %02X device %02X\n", dev->reg, dev->current_ld_card->csn, dev->current_ld->number); + ret = dev->current_ld->regs[dev->reg]; + } + break; + } + + isapnp_log("ISAPnP: read_data(%02X) = %02X\n", dev->reg, ret); + + return ret; +} + + +static void +isapnp_set_read_data(uint16_t addr, isapnp_t *dev) +{ + /* Remove existing READ_DATA port if set. */ + if (dev->read_data_addr) { + io_removehandler(dev->read_data_addr, 1, isapnp_read_data, NULL, NULL, NULL, NULL, NULL, dev); + dev->read_data_addr = 0; + } + + /* Set new READ_DATA port if within range. */ + if ((addr >= 0x203) && (addr <= 0x3ff)) { + dev->read_data_addr = addr; + io_sethandler(dev->read_data_addr, 1, isapnp_read_data, NULL, NULL, NULL, NULL, NULL, dev); + } +} + + +static void +isapnp_write_addr(uint16_t addr, uint8_t val, void *priv) +{ + isapnp_t *dev = (isapnp_t *) priv; + isapnp_card_t *card = dev->first_card; + + isapnp_log("ISAPnP: write_addr(%02X)\n", val); + + if (!card) /* don't do anything if we have no PnP cards */ + return; + + if (card->state == PNP_STATE_WAIT_FOR_KEY) { /* checking only the first card should be fine */ + /* Check written value against LFSR key. */ + if (val == pnp_init_key[dev->key_pos]) { + dev->key_pos++; + if (!dev->key_pos) { + isapnp_log("ISAPnP: Key unlocked, putting cards to SLEEP\n"); + while (card) { + if (card->state == PNP_STATE_WAIT_FOR_KEY) + card->state = PNP_STATE_SLEEP; + card = card->next; + } + } + } else { + dev->key_pos = 0; + } + } else { + /* Nobody waiting for key, set register address. */ + dev->reg = val; + } +} + + +static void +isapnp_write_data(uint16_t addr, uint8_t val, void *priv) +{ + isapnp_t *dev = (isapnp_t *) priv; + isapnp_card_t *card; + isapnp_device_t *ld; + uint16_t io_addr; + + isapnp_log("ISAPnP: write_data(%02X)\n", val); + + switch (dev->reg) { + case 0x00: /* Set RD_DATA Port */ + isapnp_set_read_data((val << 2) | 3, dev); + isapnp_log("ISAPnP: Read data port set to %04X\n", dev->read_data_addr); + break; + + case 0x02: /* Config Control */ + if (val & 0x01) { + isapnp_log("ISAPnP: Reset\n"); + isapnp_set_read_data(0, dev); + + card = dev->first_card; + while (card) { + ld = card->first_ld; + while (ld) { + memset(ld->regs, 0, sizeof(ld->regs)); + dev->current_ld = ld; + dev->current_ld_card = card; + isapnp_device_config_changed(dev); + ld = ld->next; + } + card = card->next; + } + + dev->current_ld = NULL; + dev->current_ld_card = NULL; + dev->isolated_card = NULL; + } + if (val & 0x02) { + isapnp_log("ISAPnP: Return to WAIT_FOR_KEY\n"); + card = dev->first_card; + while (card) { + card->state = PNP_STATE_WAIT_FOR_KEY; + card = card->next; + } + } + if (val & 0x04) { + isapnp_log("ISAPnP: Reset CSN\n"); + card = dev->first_card; + while (card) { + card->csn = 0; + if (card->csn_changed) + card->csn_changed(card->csn, card->priv); + card = card->next; + } + } + break; + + case 0x03: /* Wake[CSN] */ + isapnp_log("ISAPnP: Wake[%02X]\n", val); + card = dev->first_card; + while (card) { + if (card->csn == val) { + card->rom_pos = 0; + card->id_checksum = pnp_init_key[0]; + if (card->state == PNP_STATE_SLEEP) + card->state = (val == 0) ? PNP_STATE_ISOLATION : PNP_STATE_CONFIG; + } else { + card->state = PNP_STATE_SLEEP; + } + + card = card->next; + } + break; + + case 0x06: /* Card Select Number */ + if (dev->isolated_card) { + isapnp_log("ISAPnP: Set CSN %02X\n", val); + dev->isolated_card->csn = val; + if (dev->isolated_card->csn_changed) + dev->isolated_card->csn_changed(dev->isolated_card->csn, dev->isolated_card->priv); + dev->isolated_card->state = PNP_STATE_CONFIG; + dev->isolated_card = NULL; + } else { + isapnp_log("ISAPnP: Set CSN %02X but no card is isolated\n", val); + } + break; + + case 0x07: /* Logical Device Number */ + CHECK_CURRENT_CARD(); + + ld = card->first_ld; + while (ld) { + if (ld->number == val) { + isapnp_log("ISAPnP: Select CSN %02X device %02X\n", card->csn, val); + dev->current_ld_card = card; + dev->current_ld = ld; + break; + } + ld = ld->next; + } + + if (!ld) { + isapnp_log("ISAPnP: Creating CSN %02X device %02X\n", card->csn, val); + + ld = (isapnp_device_t *) malloc(sizeof(isapnp_device_t)); + memset(ld, 0, sizeof(isapnp_device_t)); + + ld->number = val; + + dev->current_ld_card = card; + dev->current_ld = ld; + + if (!card->first_ld) { + card->first_ld = ld; + } else { + ld = card->first_ld; + while (ld->next) + ld = ld->next; + ld->next = dev->current_ld; + } + } + + break; + + case 0x30: /* Activate */ + CHECK_CURRENT_LD(); + + isapnp_log("ISAPnP: Activate CSN %02X device %02X\n", dev->current_ld_card->csn, dev->current_ld->number); + + dev->current_ld->regs[dev->reg] = val & 0x01; + isapnp_device_config_changed(dev); + + break; + + case 0x31: /* I/O Range Check */ + CHECK_CURRENT_LD(); + + for (uint8_t reg = 0x60; reg <= 0x6e; reg += 2) { + io_addr = (dev->current_ld->regs[reg] << 8) | dev->current_ld->regs[reg + 1]; + if (dev->current_ld->regs[dev->reg] & 0x02) + io_removehandler(io_addr, 1, isapnp_read_rangecheck, NULL, NULL, NULL, NULL, NULL, dev->current_ld); + if (val & 0x02) + io_sethandler(io_addr, 1, isapnp_read_rangecheck, NULL, NULL, NULL, NULL, NULL, dev->current_ld); + } + + dev->current_ld->regs[dev->reg] = val & 0x03; + + break; + + case 0x20: case 0x21: case 0x22: case 0x23: + case 0x24: case 0x25: case 0x26: case 0x27: + case 0x28: case 0x29: case 0x2a: case 0x2b: + case 0x2c: case 0x2d: case 0x2e: case 0x2f: + CHECK_CURRENT_CARD(); + isapnp_log("ISAPnP: Write %02X to vendor-defined register %02X on CSN %02X\n", val, dev->reg, card->csn); + if (card->write_vendor_reg) + card->write_vendor_reg(0, dev->reg, val, card->priv); + break; + + case 0xf0: case 0xf1: case 0xf2: case 0xf3: + case 0xf4: case 0xf5: case 0xf6: case 0xf7: + case 0xf8: case 0xf9: case 0xfa: case 0xfb: + case 0xfc: case 0xfd: case 0xfe: + CHECK_CURRENT_LD(); + isapnp_log("ISAPnP: Write %02X to vendor-defined register %02X on CSN %02X device %02X\n", val, dev->reg, dev->current_ld_card->csn, dev->current_ld->number); + if (dev->current_ld_card->write_vendor_reg) + dev->current_ld_card->write_vendor_reg(dev->current_ld->number, dev->reg, val, dev->current_ld_card->priv); + break; + + default: + if (dev->reg >= 0x38) { + CHECK_CURRENT_LD(); + isapnp_log("ISAPnP: Write %02X to register %02X on CSN %02X device %02X\n", val, dev->reg, dev->current_ld_card->csn, dev->current_ld->number); + dev->current_ld->regs[dev->reg] = val; + isapnp_device_config_changed(dev); + } + break; + } +} + + +static void * +isapnp_init(const device_t *info) +{ + isapnp_t *dev = (isapnp_t *) malloc(sizeof(isapnp_t)); + memset(dev, 0, sizeof(isapnp_t)); + + io_sethandler(0x279, 1, NULL, NULL, NULL, isapnp_write_addr, NULL, NULL, dev); + io_sethandler(0xa79, 1, NULL, NULL, NULL, isapnp_write_data, NULL, NULL, dev); + + return dev; +} + + +static void +isapnp_close(void *priv) +{ + isapnp_t *dev = (isapnp_t *) priv; + isapnp_card_t *card = dev->first_card, *next_card; + isapnp_device_t *ld, *next_ld; + + while (card) { + ld = card->first_ld; + while (ld) { + next_ld = ld->next; + free(ld); + ld = next_ld; + } + + next_card = card->next; + free(card); + card = next_card; + } + + io_removehandler(0x279, 1, NULL, NULL, NULL, isapnp_write_addr, NULL, NULL, dev); + io_removehandler(0xa79, 1, NULL, NULL, NULL, isapnp_write_data, NULL, NULL, dev); + + free(dev); +} + + +void * +isapnp_add_card(uint8_t *rom, uint16_t rom_size, + void (*config_changed)(uint8_t ld, isapnp_device_config_t *config, void *priv), + void (*csn_changed)(uint8_t csn, void *priv), + uint8_t (*read_vendor_reg)(uint8_t ld, uint8_t reg, void *priv), + void (*write_vendor_reg)(uint8_t ld, uint8_t reg, uint8_t val, void *priv), + void *priv) +{ + isapnp_t *dev = (isapnp_t *) device_get_priv(&isapnp_device); + if (!dev) + dev = (isapnp_t *) device_add(&isapnp_device); + + isapnp_card_t *card = (isapnp_card_t *) malloc(sizeof(isapnp_card_t)); + memset(card, 0, sizeof(isapnp_card_t)); + + card->rom = rom; + card->rom_size = rom_size; + + /* Populate descriptor checksum in ROM. */ + uint16_t checksum_offset = card->rom_size - 1; + card->rom[checksum_offset] = 0x00; + for (uint16_t i = 9; i < checksum_offset; i++) + card->rom[checksum_offset] += card->rom[i]; + card->rom[checksum_offset] = -card->rom[checksum_offset]; + + card->priv = priv; + card->config_changed = config_changed; + card->csn_changed = csn_changed; + card->read_vendor_reg = read_vendor_reg; + card->write_vendor_reg = write_vendor_reg; + + if (!dev->first_card) { + dev->first_card = card; + } else { + isapnp_card_t *current_card = dev->first_card; + while (current_card->next) + current_card = current_card->next; + current_card->next = card; + } + + return card; +} + + +void +isapnp_set_csn(void *priv, uint8_t csn) +{ + isapnp_card_t *card = (isapnp_card_t *) priv; + + card->csn = csn; + if (card->csn_changed) + card->csn_changed(card->csn, card->priv); +} + + +static const device_t isapnp_device = { + "ISA Plug and Play", + DEVICE_ISA, + 0, + isapnp_init, isapnp_close, NULL, + { NULL }, NULL, NULL, + NULL +}; diff --git a/src/include/86box/isapnp.h b/src/include/86box/isapnp.h new file mode 100644 index 000000000..eaf2cb713 --- /dev/null +++ b/src/include/86box/isapnp.h @@ -0,0 +1,58 @@ +/* + * 86Box A hypervisor and IBM PC system emulator that specializes in + * running old operating systems and software designed for IBM + * PC systems and compatibles from 1981 through fairly recent + * system designs based on the PCI bus. + * + * This file is part of the 86Box distribution. + * + * Definitions for ISA Plug and Play. + * + * + * + * Author: RichardG, + * + * Copyright 2021 RichardG. + */ +#ifndef EMU_ISAPNP_H +# define EMU_ISAPNP_H +# include + + +#define ISAPNP_MEM_DISABLED 0 +#define ISAPNP_IO_DISABLED 0 +#define ISAPNP_IRQ_DISABLED 0 +#define ISAPNP_DMA_DISABLED 4 + + +typedef struct { + uint8_t activate; + struct { + uint32_t base: 24, size: 24; + } mem[4]; + struct { + uint32_t base, size; + } mem32[4]; + struct { + uint16_t base; + } io[8]; + struct { + uint8_t irq: 4, level: 1, type: 1; + } irq[2]; + struct { + uint8_t dma: 3; + } dma[2]; +} isapnp_device_config_t; + + +void *isapnp_add_card(uint8_t *rom, uint16_t rom_size, + void (*config_changed)(uint8_t ld, isapnp_device_config_t *config, void *priv), + void (*csn_changed)(uint8_t csn, void *priv), + uint8_t (*read_vendor_reg)(uint8_t ld, uint8_t reg, void *priv), + void (*write_vendor_reg)(uint8_t ld, uint8_t reg, uint8_t val, void *priv), + void *priv); +void isapnp_set_csn(void *priv, uint8_t csn); +uint8_t isapnp_get_rom_checksum(void *priv); + + +#endif /*EMU_ISAPNP_H*/ diff --git a/src/win/Makefile.mingw b/src/win/Makefile.mingw index ffca090f7..f7491d742 100644 --- a/src/win/Makefile.mingw +++ b/src/win/Makefile.mingw @@ -649,7 +649,7 @@ MCHOBJ := machine.o machine_table.o \ m_at_misc.o DEVOBJ := bugger.o hwm.o hwm_lm75.o hwm_lm78.o hwm_gl518sm.o hwm_vt82c686.o ibm_5161.o isamem.o isartc.o \ - lpt.o pci_bridge.o postcard.o serial.o vpc2007.o clock_ics9xxx.o \ + lpt.o pci_bridge.o postcard.o serial.o vpc2007.o clock_ics9xxx.o isapnp.o \ i2c.o i2c_gpio.o smbus_piix4.o \ keyboard.o \ keyboard_xt.o keyboard_at.o \