ps2dev9.c

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/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
#-----------------------------------------------------------------------
# Copyright (c) 2003 Marcus R. Brown <mrbrown@0xd6.org>
# Licenced under Academic Free License version 2.0
# Review ps2sdk README & LICENSE files for further details.
*/
 
#include <types.h>
#include <defs.h>
#include <loadcore.h>
#include <intrman.h>
#include <iomanX.h>
#include <dmacman.h>
#include <thbase.h>
#include <thsemap.h>
#include <stdio.h>
#include <sysclib.h>
#include <dev9.h>
#ifdef DEV9_ENABLE_AIF
#include <aifdev9.h>
#endif
 
#include <aifregs.h>
#include <dev9regs.h>
#include <speedregs.h>
#include <smapregs.h>
 
#define MODNAME    "dev9"
#define DRIVERNAME "dev9"
// This is version from last SDK 3.1.0
IRX_ID(MODNAME, 2, 8);
 
#define M_PRINTF(format, args...) \
    printf(MODNAME ": " format, ##args)
 
#define VERSION "1.0"
#define BANNER  "\nDEV9 device driver v%s - Copyright (c) 2003 Marcus R. Brown\n\n"
 
/* SSBUS registers.  */
#define SSBUS_R_1418 0xbf801418
#define SSBUS_R_141c 0xbf80141c
#define SSBUS_R_1420 0xbf801420
 
static int semaAttrGlobal;   /* Semaphore attribute value to use. */
static const char *mod_name; /* Module name. */
static int dev9type  = -1;   /* 0 for PCMCIA, 1 for expansion bay */
static int using_aif = 0;    /* 1 if using AIF on a T10K */
 
static int dma_lock_sem; /* used to arbitrate DMA */
 
enum PC_CARD_TYPE {
    PC_CARD_TYPE_NONE = 0,
    PC_CARD_TYPE_PCMCIA,
    PC_CARD_TYPE_CARDBUS,
};
 
enum PC_CARD_VOLTAGE {
    PC_CARD_VOLTAGE_INVALID = 0,
    PC_CARD_VOLTAGE_3V,
    PC_CARD_VOLTAGE_5V,
    PC_CARD_VOLTAGE_04h
};
 
static int pcic_cardtype; /* Translated value of bits 0-1 of 0xbf801462 */
static int pcic_voltage;  /* Translated value of bits 2-3 of 0xbf801462 */
 
static s16 eeprom_data[5]; /* 2-byte EEPROM status (0/-1 = invalid, 1 = valid),
                              6-byte MAC address,
                              2-byte MAC address checksum.  */
 
typedef int (*dev9IntrDispatchCb_t)(int flag);
static dev9IntrDispatchCb_t p_dev9_intr_cb = NULL;
static void dev9RegisterIntrDispatchCb(dev9IntrDispatchCb_t callback);
 
/* Each driver can register callbacks that correspond to each bit of the
   SMAP interrupt status register (0xbx000028).  */
static dev9_intr_cb_t dev9_intr_cbs[16];
#ifdef DEV9_ENABLE_AIF
static aif_intr_cb_t aif_intr_cbs[AIF_INUM_COUNT];
#endif
 
static dev9_shutdown_cb_t dev9_shutdown_cbs[16];
#ifdef DEV9_ENABLE_AIF
static dev9_shutdown_cb_t aif_shutdown_cbs[AIF_INUM_COUNT];
#endif
 
static dev9_dma_cb_t dev9_predma_cbs[4], dev9_postdma_cbs[4];
 
static u8 dev9_has_dvr_capability = 0;
 
static int dev9_intr_dispatch(int flag);
 
static void dev9_set_stat(int stat);
static int dev9_ssbus_mode(int mode);
static int dev9_device_probe(void);
static int dev9_device_reset(void);
static int dev9_card_find_manfid(u32 manfid);
 
static int read_eeprom_data(void);
static int dev9_init(int sema_attr);
static int speed_device_init(void);
 
static void pcmcia_set_stat(int stat);
static int pcic_ssbus_mode(int mode);
static int pcmcia_device_probe(void);
static int pcmcia_device_reset(void);
static int card_find_manfid(u32 manfid);
static int pcmcia_init(int sema_attr);
 
static void expbay_set_stat(int stat);
static int expbay_device_probe(void);
static int expbay_device_reset(void);
static int expbay_init(int sema_attr);
 
extern struct irx_export_table _exp_dev9;
 
static int dev9x_devctl(iop_file_t *f, const char *name, int cmd, void *args, unsigned int arglen, void *buf, unsigned int buflen)
{
    (void)f;
    (void)name;
    (void)arglen;
    (void)buf;
    (void)buflen;
    switch (cmd) {
        case DDIOC_MODEL:
            return dev9type;
        case DDIOC_OFF:
            Dev9CardStop();
            return 0;
        case DDIOC_SETPIO3:
            dev9ControlPIO3(((u32 *)args)[0]);
            return 0;
        case DDIOC_LED2CTL:
            dev9LED2Ctl(((u32 *)args)[0]);
            return 0;
        default:
            return 0;
    }
}
 
IOMANX_RETURN_VALUE_IMPL(0);
 
static iop_device_ops_t dev9x_ops =
    {
        IOMANX_RETURN_VALUE(0), // init
        IOMANX_RETURN_VALUE(0), // deinit
        IOMANX_RETURN_VALUE(0), // format
        IOMANX_RETURN_VALUE(0), // open
        IOMANX_RETURN_VALUE(0), // close
        IOMANX_RETURN_VALUE(0), // read
        IOMANX_RETURN_VALUE(0), // write
        IOMANX_RETURN_VALUE(0), // lseek
        IOMANX_RETURN_VALUE(0), // ioctl
        IOMANX_RETURN_VALUE(0), // remove
        IOMANX_RETURN_VALUE(0), // mkdir
        IOMANX_RETURN_VALUE(0), // rmdir
        IOMANX_RETURN_VALUE(0), // dopen
        IOMANX_RETURN_VALUE(0), // dclose
        IOMANX_RETURN_VALUE(0), // dread
        IOMANX_RETURN_VALUE(0), // getstat
        IOMANX_RETURN_VALUE(0), // chstat
        IOMANX_RETURN_VALUE(0), // rename
        IOMANX_RETURN_VALUE(0), // chdir
        IOMANX_RETURN_VALUE(0), // sync
        IOMANX_RETURN_VALUE(0), // mount
        IOMANX_RETURN_VALUE(0), // umount
        IOMANX_RETURN_VALUE_S64(0), // lseek64
        &dev9x_devctl, // devctl
        IOMANX_RETURN_VALUE(0), // symlink
        IOMANX_RETURN_VALUE(0), // readlink
        IOMANX_RETURN_VALUE(0), // ioctl2
};
 
static iop_device_t dev9x_device =
    {
        "dev9x",
        IOP_DT_FS | IOP_DT_FSEXT,
        1,
        "DEV9",
        &dev9x_ops,
};
 
static int print_help(void)
{ // The original made a printf() call for each line.
    printf("Usage:\n"
           "  %s [-sa] <attribute>]\n"
           "      -sa  You can specify attibute of sempahore for queuing thread.\n"
           "           List of possible <attribute>:\n"
           "             SA_THPRI(default), SA_THFIFO\n",
           mod_name);
 
    return MODULE_NO_RESIDENT_END;
}
 
int _start(int argc, char *argv[])
{
    USE_DEV9_REGS;
    const char *pModName;
    int idx, res;
    u16 dev9hw;
 
    semaAttrGlobal = SA_THPRI;
 
    printf(BANNER, VERSION);
 
    mod_name = (pModName = strrchr(argv[0], '/')) != NULL ? pModName + 1 : argv[0];
 
    for (--argc, ++argv; argc > 0; argc--, argv++) {
        if ((*argv)[0] != '-')
            break;
 
        if (strcmp("-sa", *argv) == 0) {
            --argc;
            ++argv;
            if (argc > 0) {
                if (strcmp("SA_THFIFO", *argv) == 0) {
                    semaAttrGlobal = SA_THFIFO;
                } else if (strcmp("SA_THPRI", *argv) == 0) {
                    semaAttrGlobal = SA_THPRI;
                } else {
                    return print_help();
                }
            } else {
                return print_help();
            }
        } else {
            return print_help();
        }
    }
 
    for (idx = 0; idx < 16; idx++)
        dev9_shutdown_cbs[idx] = NULL;
 
#ifdef DEV9_ENABLE_AIF
    for (idx = 0; idx < AIF_INUM_COUNT; idx++)
        aif_shutdown_cbs[idx] = NULL;
#endif
 
    dev9hw = DEV9_REG(DEV9_R_REV) & 0xf0;
    if (dev9hw == 0x20) { /* CXD9566 (PCMCIA) */
        dev9type = DEV9_TYPE_PCMCIA;
        M_PRINTF("CXD9566 detected.\n");
        res = pcmcia_init(semaAttrGlobal);
    } else if (dev9hw == 0x30) { /* CXD9611 (Expansion Bay) */
        dev9type = DEV9_TYPE_EXPBAY;
        M_PRINTF("CXD9611 detected.\n");
        res = expbay_init(semaAttrGlobal);
    } else {
        M_PRINTF("unknown dev9 hardware.\n");
        res = MODULE_NO_RESIDENT_END;
    }
 
    if (res)
        return res;
 
    DelDrv(dev9x_device.name);
    if (AddDrv(&dev9x_device) != 0) {
        return MODULE_NO_RESIDENT_END;
    }
 
    return MODULE_RESIDENT_END;
}
 
int _exit(void) { return MODULE_RESIDENT_END; }
 
/* Export 4 */
void SpdRegisterIntrHandler(int intr, dev9_intr_cb_t cb)
{
    dev9_intr_cbs[intr] = cb;
}
 
/* Export 12 */
void dev9RegisterPreDmaCb(int ctrl, dev9_dma_cb_t cb)
{
    dev9_predma_cbs[ctrl] = cb;
}
 
/* Export 13 */
void dev9RegisterPostDmaCb(int ctrl, dev9_dma_cb_t cb)
{
    dev9_postdma_cbs[ctrl] = cb;
}
 
// flag is 1 if a card (pcmcia) was removed or added
static int dev9_intr_dispatch(int flag)
{
    USE_SPD_REGS;
    int i, bit;
 
    if (flag) {
        for (i = 0; i < 16; i++)
            if (dev9_intr_cbs[i] != NULL)
                dev9_intr_cbs[i](flag);
    }
 
    while (SPD_REG16(SPD_R_INTR_STAT) & SPD_REG16(SPD_R_INTR_MASK)) {
        for (i = 0; i < 16; i++) {
            if (dev9_intr_cbs[i] != NULL) {
                bit = (SPD_REG16(SPD_R_INTR_STAT) &
                       SPD_REG16(SPD_R_INTR_MASK)) >>
                      i;
                if (bit & 0x01)
                    dev9_intr_cbs[i](flag);
            }
        }
    }
 
    return 0;
}
 
static void dev9_set_stat(int stat)
{
    switch (dev9type) {
        case DEV9_TYPE_PCMCIA:
            pcmcia_set_stat(stat);
            break;
        case DEV9_TYPE_EXPBAY:
            expbay_set_stat(stat);
            break;
    }
}
 
static int dev9_ssbus_mode(int mode)
{
    switch (dev9type) {
        case DEV9_TYPE_PCMCIA:
            return pcic_ssbus_mode(mode);
        case DEV9_TYPE_EXPBAY:
            return 0;
    }
 
    return -1;
}
 
static int dev9_device_probe(void)
{
    switch (dev9type) {
        case DEV9_TYPE_PCMCIA:
            return pcmcia_device_probe();
        case DEV9_TYPE_EXPBAY:
            return expbay_device_probe();
    }
 
    return -1;
}
 
static int dev9_device_reset(void)
{
    switch (dev9type) {
        case DEV9_TYPE_PCMCIA:
            return pcmcia_device_reset();
        case DEV9_TYPE_EXPBAY:
            return expbay_device_reset();
    }
 
    return -1;
}
 
/* Export 6 */
void Dev9CardStop(void)
{
    int idx;
    USE_DEV9_REGS;
 
    for (idx = 0; idx < 16; idx++)
        if (dev9_shutdown_cbs[idx])
            dev9_shutdown_cbs[idx]();
 
#ifdef DEV9_ENABLE_AIF
    for (idx = 0; idx < AIF_INUM_COUNT; idx++)
        if (aif_shutdown_cbs[idx])
            aif_shutdown_cbs[idx]();
#endif
 
    if (dev9type == DEV9_TYPE_PCMCIA) { /* PCMCIA */
        DEV9_REG(DEV9_R_POWER) = 0;
        DEV9_REG(DEV9_R_1474)  = 0;
    } else if (dev9type == DEV9_TYPE_EXPBAY) {
        DEV9_REG(DEV9_R_1466)  = 1;
        DEV9_REG(DEV9_R_1464)  = 0;
        DEV9_REG(DEV9_R_1460)  = DEV9_REG(DEV9_R_1464);
        DEV9_REG(DEV9_R_POWER) = DEV9_REG(DEV9_R_POWER) & ~4;
        DEV9_REG(DEV9_R_POWER) = DEV9_REG(DEV9_R_POWER) & ~1;
    }
    DelayThread(1000000);
}
 
static int dev9_card_find_manfid(u32 manfid)
{
    switch (dev9type) {
        case DEV9_TYPE_PCMCIA:
            return card_find_manfid(manfid);
        case DEV9_TYPE_EXPBAY:
            return 0;
    }
 
    return -1;
}
 
/* Export 7 */
void SpdIntrEnable(int mask)
{
    USE_SPD_REGS;
    int flags;
 
    CpuSuspendIntr(&flags);
    SPD_REG16(SPD_R_INTR_MASK) = SPD_REG16(SPD_R_INTR_MASK) | mask;
    CpuResumeIntr(flags);
}
 
/* Export 8 */
void SpdIntrDisable(int mask)
{
    USE_SPD_REGS;
    int flags;
 
    CpuSuspendIntr(&flags);
    SPD_REG16(SPD_R_INTR_MASK) = SPD_REG16(SPD_R_INTR_MASK) & ~mask;
    CpuResumeIntr(flags);
}
 
/* Export 5 */
int SpdDmaTransfer(int device, void *buf, int bcr, int dir)
{
    USE_SPD_REGS;
    volatile iop_dmac_chan_t *dev9_chan = (iop_dmac_chan_t *)DEV9_DMAC_BASE;
    int res, dmactrl, OldState;
 
    if (device >= 4) {
        return -1;
    } else if (device >= 2) {
        if (dev9_predma_cbs[device] == NULL)
            return -1;
        if (dev9_postdma_cbs[device] == NULL)
            return -1;
    }
 
    if ((res = WaitSema(dma_lock_sem)) < 0)
        return res;
 
    switch (device) {
        case 0:
            dmactrl = 0;
            break;
        case 1:
            dmactrl = 1;
            break;
#ifdef DEV9_PSX_SUPPORT
        // Used for the PSX
        case 2:
            dmactrl = 0x10;
            break;
        case 3:
            dmactrl = 0x20;
            break;
#endif
        default:
            dmactrl = 0;
    }
 
    SPD_REG16(SPD_R_DMA_CTRL) = (SPD_REG16(SPD_R_REV_1) < 17) ? (dmactrl & 0x03) | 0x04 : dmactrl | 0x06;
 
    if (dev9_predma_cbs[device])
        dev9_predma_cbs[device](bcr, dir);
 
    dev9_chan->madr = (u32)buf;
 
    /* Older versions of DEV9 do not suspend interrupts. Not sure why this must be done though. */
    CpuSuspendIntr(&OldState);
    dev9_chan->bcr  = bcr;
    dev9_chan->chcr = DMAC_CHCR_30 | DMAC_CHCR_TR | DMAC_CHCR_CO | (dir & DMAC_CHCR_DR);
    CpuResumeIntr(OldState);
 
    /* Wait for DMA to complete. Do not use a semaphore as thread switching hurts throughput greatly.  */
    while (dev9_chan->chcr & DMAC_CHCR_TR) {}
 
    if (dev9_postdma_cbs[device])
        dev9_postdma_cbs[device](bcr, dir);
 
    SignalSema(dma_lock_sem);
    return 0;
}
 
static int read_eeprom_data(void)
{
    USE_SPD_REGS;
    int i, j, res = -2;
    u8 val;
 
    if (eeprom_data[0] < 0)
        goto out;
 
    SPD_REG8(SPD_R_PIO_DIR) = 0xe0 | (dev9_has_dvr_capability ? 7 : 1);
    DelayThread(1);
    SPD_REG8(SPD_R_PIO_DATA) = 0x80;
    DelayThread(1);
 
    for (i = 0; i < 2; i++) {
        SPD_REG8(SPD_R_PIO_DATA) = 0xa0;
        DelayThread(1);
        SPD_REG8(SPD_R_PIO_DATA) = 0xe0;
        DelayThread(1);
    }
    for (i = 0; i < 7; i++) {
        SPD_REG8(SPD_R_PIO_DATA) = 0x80;
        DelayThread(1);
        SPD_REG8(SPD_R_PIO_DATA) = 0xc0;
        DelayThread(1);
    }
    SPD_REG8(SPD_R_PIO_DATA) = 0xc0;
    DelayThread(1);
 
    val = SPD_REG8(SPD_R_PIO_DATA);
    DelayThread(1);
    if (val & 0x10) { /* Error.  */
        SPD_REG8(SPD_R_PIO_DATA) = 0;
        DelayThread(1);
        res            = -1;
        eeprom_data[0] = 0;
        goto out;
    }
 
    SPD_REG8(SPD_R_PIO_DATA) = 0x80;
    DelayThread(1);
 
    /* Read the MAC address and checksum from the EEPROM.  */
    for (i = 0; i < 4; i++) {
        eeprom_data[i + 1] = 0;
 
        for (j = 15; j >= 0; j--) {
            SPD_REG8(SPD_R_PIO_DATA) = 0xc0;
            DelayThread(1);
            val = SPD_REG8(SPD_R_PIO_DATA);
            if (val & 0x10)
                eeprom_data[i + 1] |= (1 << j);
            SPD_REG8(SPD_R_PIO_DATA) = 0x80;
            DelayThread(1);
        }
    }
 
    SPD_REG8(SPD_R_PIO_DATA) = 0;
    DelayThread(1);
    eeprom_data[0] = 1; /* The EEPROM data is valid.  */
    res            = 0;
 
out:
    SPD_REG8(SPD_R_PIO_DIR) = dev9_has_dvr_capability ? 7 : 1;
    return res;
}
 
/* Export 9 */
int SpdGetEthernetID(u16 *buf)
{
    int i;
 
    if (!eeprom_data[0])
        return -1;
    if (eeprom_data[0] < 0)
        return -2;
 
    /* We only return the MAC address and checksum.  */
    for (i = 0; i < 4; i++)
        buf[i] = eeprom_data[i + 1];
 
    return 0;
}
 
// Exerpt from Wisi's SPEED.txt:
// 1:0  Dev9 LED Control. 0=On/1=Off.
// Clearing either to 0 will light the LED.
// Each is connected to the cathode of a diode, sharing a common anode.
// The anode has a 10kohm pull-up to Vcc, and is connected to the base of an PNP transistor,
// with collector grounded and emitter, connecting through a 240ohm resistor to the ACS_LED
// pin (90) of the Expansion Bay connector. It connects to the cathode of the HDD Activity LED
// in the PS2, the anode of which connects through 180ohm resistor to +5V.
 
// The specific LED part used is the Citizen CITILED CL-200TLY-C, which has a "Lemon Yellow" color.
 
/* Export 10 */
void SpdSetLED(int ctl)
{
    USE_SPD_REGS;
    if (dev9_has_dvr_capability) {
        SPD_REG8(SPD_R_PIO_DIR) |= 1;
        SPD_REG8(SPD_R_PIO_DATA) = (SPD_REG8(SPD_R_PIO_DATA) & 0xE) | (ctl ? 0 : 1);
    } else {
        SPD_REG8(SPD_R_PIO_DATA) = (ctl == 0);
    }
}
 
/* Export 15 */
void dev9LED2Ctl(int ctl)
{
    if (dev9_has_dvr_capability) {
        USE_SPD_REGS;
        SPD_REG8(SPD_R_PIO_DIR) |= 2;
        DelayThread(1);
        SPD_REG8(SPD_R_PIO_DATA) = (SPD_REG8(SPD_R_PIO_DATA) & 0xD) | (ctl ? 0 : 2);
        DelayThread(1);
    }
}
 
// Exerpt from Wisi's SPEED.txt:
// 3:2  On SCPH-70000, each is connected through 10kohm R to Vcc, so they were inputs once.
// On the SCPH-10350 Network Adapter - as well.
 
/* Export 14 */
void dev9ControlPIO3(int ctl)
{
    if (dev9_has_dvr_capability) {
        USE_SPD_REGS;
        SPD_REG8(SPD_R_PIO_DIR) |= 4;
        DelayThread(1);
        SPD_REG8(SPD_R_PIO_DATA) = (SPD_REG8(SPD_R_PIO_DATA) & 0xB) | (ctl ? 0 : 4);
        DelayThread(1);
    }
}
 
static void dev9RegisterIntrDispatchCb(dev9IntrDispatchCb_t callback)
{
    p_dev9_intr_cb = callback;
}
 
/* Export 11 */
int Dev9RegisterPowerOffHandler(int idx, dev9_shutdown_cb_t cb)
{
    if (idx < 16) {
        dev9_shutdown_cbs[idx] = cb;
        return 0;
    }
    return -1;
}
 
static int dev9_init(int sema_attr)
{
    iop_sema_t sema;
    int i, flags;
 
    sema.attr    = sema_attr;
    sema.initial = 1;
    sema.max     = 1;
    if ((dma_lock_sem = CreateSema(&sema)) < 0)
        return -1;
 
    CpuSuspendIntr(&flags);
    /* Enable the DEV9 DMAC channel.  */
    dmac_set_dpcr2(dmac_get_dpcr2() | 0x80);
    CpuResumeIntr(flags);
 
    /* Not quite sure what this enables yet.  */
    dev9_set_stat(0x103);
 
    /* Disable all device interrupts.  */
    SpdIntrDisable(0xffff);
 
#ifdef DEV9_ENABLE_AIF
    if (using_aif)
        aifIntrDisable(0xffff);
#endif
 
    /* Register interrupt dispatch callback handler. */
    dev9RegisterIntrDispatchCb(&dev9_intr_dispatch);
 
    /* Reset the SMAP interrupt callback table. */
    for (i = 0; i < 16; i++)
        dev9_intr_cbs[i] = NULL;
#ifdef DEV9_ENABLE_AIF
    for (i = 0; i < AIF_INUM_COUNT; i++)
        aif_intr_cbs[i] = NULL;
#endif
 
    for (i = 0; i < 4; i++) {
        dev9_predma_cbs[i]  = NULL;
        dev9_postdma_cbs[i] = NULL;
    }
 
    /* Read in the MAC address.  */
    read_eeprom_data();
 
    dev9LED2Ctl(0);
    dev9ControlPIO3(0);
 
    /* Turn the LED off.  */
    SpdSetLED(0);
    return 0;
}
 
#ifndef DEV9_SKIP_SMAP_INIT
static int dev9_smap_read_phy(volatile u8 *emac3_regbase, unsigned int address, unsigned int *data)
{
    unsigned int i, PHYRegisterValue;
    int result;
 
    PHYRegisterValue = (address & SMAP_E3_PHY_REG_ADDR_MSK) | SMAP_E3_PHY_READ | ((SMAP_DsPHYTER_ADDRESS & SMAP_E3_PHY_ADDR_MSK) << SMAP_E3_PHY_ADDR_BITSFT);
 
    i      = 0;
    result = 0;
    SMAP_EMAC3_SET(SMAP_R_EMAC3_STA_CTRL, PHYRegisterValue);
 
    do {
        if (SMAP_EMAC3_GET(SMAP_R_EMAC3_STA_CTRL) & SMAP_E3_PHY_OP_COMP) {
            if (SMAP_EMAC3_GET(SMAP_R_EMAC3_STA_CTRL) & SMAP_E3_PHY_OP_COMP) {
                if ((result = SMAP_EMAC3_GET(SMAP_R_EMAC3_STA_CTRL)) & SMAP_E3_PHY_OP_COMP) {
                    result >>= SMAP_E3_PHY_DATA_BITSFT;
                    break;
                }
            }
        }
 
        DelayThread(1000);
        i++;
    } while (i < 100);
 
    if (i >= 100) {
        return 1;
    } else {
        *data = result;
        return 0;
    }
}
 
static int dev9_smap_write_phy(volatile u8 *emac3_regbase, unsigned char address, unsigned short int value)
{
    unsigned int i, PHYRegisterValue;
 
    PHYRegisterValue = (address & SMAP_E3_PHY_REG_ADDR_MSK) | SMAP_E3_PHY_WRITE | ((SMAP_DsPHYTER_ADDRESS & SMAP_E3_PHY_ADDR_MSK) << SMAP_E3_PHY_ADDR_BITSFT);
    PHYRegisterValue |= ((unsigned int)value) << SMAP_E3_PHY_DATA_BITSFT;
 
    i = 0;
    SMAP_EMAC3_SET(SMAP_R_EMAC3_STA_CTRL, PHYRegisterValue);
 
    for (; !(SMAP_EMAC3_GET(SMAP_R_EMAC3_STA_CTRL) & SMAP_E3_PHY_OP_COMP); i++) {
        DelayThread(1000);
        if (i >= 100)
            break;
    }
 
    return ((i >= 100) ? 1 : 0);
}
 
static int dev9_smap_init(void)
{
    unsigned int value;
    USE_SPD_REGS;
    USE_SMAP_REGS;
    USE_SMAP_EMAC3_REGS;
    USE_SMAP_TX_BD;
    USE_SMAP_RX_BD;
    int i;
 
    // Do not perform SMAP initialization if the SPEED device does not have such an interface
    if (!(SPD_REG16(SPD_R_REV_3) & SPD_CAPS_SMAP)
#ifdef DEV9_GAMESTAR_WORKAROUND
        /*    If this adaptor is a compatible adaptor, do not initialize SMAP.
        Official adaptors appear to have a 0x0001 set for this register, but not compatibles.
        While official I/O to this register are 8-bit, some compatibles have a 0x01 for the lower 8-bits,
        but the upper 8-bits contain some random value. Hence perform a 16-bit read instead. */
        || (SPD_REG16(0x20) != 1)
#endif
    )
        return 0;
 
    SMAP_REG8(SMAP_R_TXFIFO_CTRL) = SMAP_TXFIFO_RESET;
    for (i = 9; SMAP_REG8(SMAP_R_TXFIFO_CTRL) & SMAP_TXFIFO_RESET; i--) {
        if (i <= 0)
            return 1;
        DelayThread(1000);
    }
 
    SMAP_REG8(SMAP_R_RXFIFO_CTRL) = SMAP_RXFIFO_RESET;
    for (i = 9; SMAP_REG8(SMAP_R_RXFIFO_CTRL) & SMAP_RXFIFO_RESET; i--) {
        if (i <= 0)
            return 1;
        DelayThread(1000);
    }
 
    SMAP_EMAC3_SET(SMAP_R_EMAC3_MODE0, SMAP_E3_SOFT_RESET);
    for (i = 9; SMAP_EMAC3_GET(SMAP_R_EMAC3_MODE0) & SMAP_E3_SOFT_RESET; i--) {
        if (i <= 0)
            return 3;
        DelayThread(1000);
    }
 
    // Unlike the SMAP driver, this reset operation is done in big-endian.
    if (SPD_REG16(SPD_R_REV_1) >= 0x11)
        SMAP_REG8(SMAP_R_BD_MODE) = SMAP_BD_SWAP;
 
    for (i = 0; i < SMAP_BD_MAX_ENTRY; i++) {
        tx_bd[i].ctrl_stat = 0;
        tx_bd[i].reserved  = 0;
        tx_bd[i].length    = 0;
        tx_bd[i].pointer   = 0;
    }
 
    for (i = 0; i < SMAP_BD_MAX_ENTRY; i++) {
        rx_bd[i].ctrl_stat = 0x80; // SMAP_BD_RX_EMPTY
        rx_bd[i].reserved  = 0;
        rx_bd[i].length    = 0;
        rx_bd[i].pointer   = 0;
    }
 
    SMAP_REG16(SMAP_R_INTR_CLR) = SMAP_INTR_BITMSK;
    if (SPD_REG16(SPD_R_REV_1) < 0x11)
        SPD_REG8(0x100) = 1;
 
    SMAP_EMAC3_SET(SMAP_R_EMAC3_MODE1, SMAP_E3_FDX_ENABLE | SMAP_E3_IGNORE_SQE | SMAP_E3_MEDIA_100M | SMAP_E3_RXFIFO_2K | SMAP_E3_TXFIFO_1K | SMAP_E3_TXREQ0_MULTI | SMAP_E3_TXREQ1_SINGLE);
    SMAP_EMAC3_SET(SMAP_R_EMAC3_TxMODE1, 7 << SMAP_E3_TX_LOW_REQ_BITSFT | 15 << SMAP_E3_TX_URG_REQ_BITSFT);
    SMAP_EMAC3_SET(SMAP_R_EMAC3_RxMODE, SMAP_E3_RX_RX_RUNT_FRAME | SMAP_E3_RX_RX_FCS_ERR | SMAP_E3_RX_RX_TOO_LONG_ERR | SMAP_E3_RX_RX_IN_RANGE_ERR | SMAP_E3_RX_PROP_PF | SMAP_E3_RX_PROMISC);
    SMAP_EMAC3_SET(SMAP_R_EMAC3_INTR_STAT, SMAP_E3_INTR_TX_ERR_0 | SMAP_E3_INTR_SQE_ERR_0 | SMAP_E3_INTR_DEAD_0);
    SMAP_EMAC3_SET(SMAP_R_EMAC3_INTR_ENABLE, SMAP_E3_INTR_TX_ERR_0 | SMAP_E3_INTR_SQE_ERR_0 | SMAP_E3_INTR_DEAD_0);
    SMAP_EMAC3_SET(SMAP_R_EMAC3_ADDR_HI, 0);
    SMAP_EMAC3_SET(SMAP_R_EMAC3_ADDR_LO, 0);
    SMAP_EMAC3_SET(SMAP_R_EMAC3_PAUSE_TIMER, 0xFFFF);
    SMAP_EMAC3_SET(SMAP_R_EMAC3_INTER_FRAME_GAP, 4);
    SMAP_EMAC3_SET(SMAP_R_EMAC3_TX_THRESHOLD, 12 << SMAP_E3_TX_THRESHLD_BITSFT);
    SMAP_EMAC3_SET(SMAP_R_EMAC3_RX_WATERMARK, 16 << SMAP_E3_RX_LO_WATER_BITSFT | 128 << SMAP_E3_RX_HI_WATER_BITSFT);
 
    dev9_smap_write_phy(emac3_regbase, SMAP_DsPHYTER_BMCR, SMAP_PHY_BMCR_RST);
    for (i = 9;; i--) {
        if (dev9_smap_read_phy(emac3_regbase, SMAP_DsPHYTER_BMCR, &value))
            return 4;
        if (!(value & SMAP_PHY_BMCR_RST))
            break;
        if (i <= 0)
            return 5;
    }
 
    dev9_smap_write_phy(emac3_regbase, SMAP_DsPHYTER_BMCR, SMAP_PHY_BMCR_LPBK | SMAP_PHY_BMCR_100M | SMAP_PHY_BMCR_DUPM);
    DelayThread(10000);
    SMAP_EMAC3_SET(SMAP_R_EMAC3_MODE0, SMAP_E3_TXMAC_ENABLE | SMAP_E3_RXMAC_ENABLE);
    value = SMAP_REG16(SMAP_R_TXFIFO_WR_PTR) + SMAP_TX_BASE;
 
    for (i = 0; i < 0x5EA; i += 4)
        SMAP_REG32(SMAP_R_TXFIFO_DATA) = i;
 
    tx_bd[0].length                    = 0xEA05;
    tx_bd[0].pointer                   = (value >> 8) | (value << 8);
    SMAP_REG8(SMAP_R_TXFIFO_FRAME_INC) = 0;
    tx_bd[0].ctrl_stat                 = 0x83; // SMAP_BD_TX_READY|SMAP_BD_TX_GENFCS|SMAP_BD_TX_GENPAD
 
    SMAP_EMAC3_SET(SMAP_R_EMAC3_TxMODE0, SMAP_E3_TX_GNP_0);
    for (i = 9;; i--) {
        value = SPD_REG16(SPD_R_INTR_STAT);
 
        if ((value & (SMAP_INTR_RXEND | SMAP_INTR_TXEND | SMAP_INTR_TXDNV)) == (SMAP_INTR_RXEND | SMAP_INTR_TXEND | SMAP_INTR_TXDNV))
            break;
        if (i <= 0)
            return 6;
        DelayThread(1000);
    }
    SMAP_EMAC3_SET(SMAP_R_EMAC3_MODE0, SMAP_E3_SOFT_RESET);
 
    return 0;
}
#endif
 
static int speed_device_init(void)
{
    USE_SPD_REGS;
    const char *spdnames[] = {"(unknown)", "TS", "ES1", "ES2"};
    int idx, res;
    u16 spdrev;
#ifndef DEV9_SKIP_SMAP_INIT
    int i;
#endif
 
    eeprom_data[0] = 0;
 
#ifndef DEV9_SKIP_SMAP_INIT
    for (i = 0; i < 8; i++) {
#endif
        if (dev9_device_probe() < 0) {
            M_PRINTF("No device.\n");
#ifdef DEV9_ENABLE_AIF
            return (using_aif ? 0 : -1);
#else
        return -1;
#endif
        }
 
        dev9_device_reset();
 
        /* Locate the SPEED Lite chip and get the bus ready for the
           PCMCIA device.  */
        if ((res = dev9_card_find_manfid(0xf15300)))
            M_PRINTF("SPEED Lite not found.\n");
 
        if (!res && (res = dev9_ssbus_mode(5)))
            M_PRINTF("Unable to change SSBUS mode.\n");
 
        if (res) {
            Dev9CardStop();
            return -1;
        }
 
#ifndef DEV9_SKIP_SMAP_INIT
        if ((res = dev9_smap_init()) == 0) {
            break;
        }
 
        Dev9CardStop();
        DelayThread(4500000);
    }
 
    if (res) {
        M_PRINTF("SMAP initialization failed: %d\n", res);
        eeprom_data[0] = -1;
    }
#endif
 
    /* Print out the SPEED chip revision.  */
    spdrev = SPD_REG16(SPD_R_REV_1);
    idx    = (spdrev & 0xffff) - 14;
    if (spdrev == 9)
        idx = 1; /* TS */
    else if (spdrev < 9 || (spdrev < 16 || spdrev > 17))
        idx = 0; /* Unknown revision */
 
    M_PRINTF("SPEED chip '%s', revision %0x\n", spdnames[idx], spdrev);
    return 0;
}
 
static int pcic_get_cardtype(void)
{
    USE_DEV9_REGS;
    u16 val = DEV9_REG(DEV9_R_1462) & 0x03;
 
    if (val == 0)
        return PC_CARD_TYPE_PCMCIA;  /* 16-bit */
    else if (val < 3)                // If the bit pattern is either 10b or 01b
        return PC_CARD_TYPE_CARDBUS; /* CardBus */
    return PC_CARD_TYPE_NONE;
}
 
static int pcic_get_voltage(void)
{
    USE_DEV9_REGS;
    u16 val = DEV9_REG(DEV9_R_1462) & 0x0c;
 
    if (val == 0x04)
        return PC_CARD_VOLTAGE_04h;
    if (val == 0 || val == 0x08)
        return PC_CARD_VOLTAGE_3V;
    if (val == 0x0c)
        return PC_CARD_VOLTAGE_5V;
    return PC_CARD_VOLTAGE_INVALID;
}
 
static int pcic_power(int voltage, int flag)
{
    USE_DEV9_REGS;
    u16 cstc1, cstc2;
    u16 val = (voltage == 1) << 2;
 
    DEV9_REG(DEV9_R_POWER) = 0;
 
    if (voltage == 2)
        val |= 0x08;
    if (flag == 1)
        val |= 0x10;
 
    DEV9_REG(DEV9_R_POWER) = val;
    DelayThread(22000);
 
    if (DEV9_REG(DEV9_R_1462) & 0x100)
        return 0;
 
    DEV9_REG(DEV9_R_POWER) = 0;
    DEV9_REG(DEV9_R_1464) = cstc1 = DEV9_REG(DEV9_R_1464);
    DEV9_REG(DEV9_R_1466) = cstc2 = DEV9_REG(DEV9_R_1466);
    return -1;
}
 
static void pcmcia_set_stat(int stat)
{
    USE_DEV9_REGS;
    u16 val = stat & 0x01;
 
    if (stat & 0x10)
        val = 1;
    if (stat & 0x02)
        val |= 0x02;
    if (stat & 0x20)
        val |= 0x02;
    if (stat & 0x04)
        val |= 0x08;
    if (stat & 0x08)
        val |= 0x10;
    if (stat & 0x200)
        val |= 0x20;
    if (stat & 0x100)
        val |= 0x40;
    if (stat & 0x400)
        val |= 0x80;
    if (stat & 0x800)
        val |= 0x04;
    DEV9_REG(DEV9_R_1476) = val & 0xff;
}
 
static int pcic_ssbus_mode(int mode)
{
    USE_DEV9_REGS;
    USE_SPD_REGS;
    u16 stat = DEV9_REG(DEV9_R_1474) & 7;
 
    if (mode != 3 && mode != 5)
        return -1;
 
    DEV9_REG(DEV9_R_1460) = 2;
    if (stat)
        return -1;
 
    if (mode == 3) {
        DEV9_REG(DEV9_R_1474) = 1;
        DEV9_REG(DEV9_R_1460) = 1;
        SPD_REG8(0x20)        = 1;
        DEV9_REG(DEV9_R_1474) = mode;
    } else if (mode == 5) {
        DEV9_REG(DEV9_R_1474) = mode;
        DEV9_REG(DEV9_R_1460) = 1;
        SPD_REG8(0x20)        = 1;
        DEV9_REG(DEV9_R_1474) = 7;
    }
    _sw(0xe01a3043, SSBUS_R_1418);
 
    DelayThread(5000);
    DEV9_REG(DEV9_R_POWER) = DEV9_REG(DEV9_R_POWER) & ~1;
    return 0;
}
 
static int pcmcia_device_probe(void)
{
    const char *pcic_ct_names[] = {"No", "16-bit", "CardBus"};
    int voltage;
 
    pcic_voltage  = pcic_get_voltage();
    pcic_cardtype = pcic_get_cardtype();
    voltage       = (pcic_voltage == PC_CARD_VOLTAGE_5V ? 5 : (pcic_voltage == PC_CARD_VOLTAGE_3V ? 3 : 0));
 
    M_PRINTF("%s PCMCIA card detected. Vcc = %dV\n",
             pcic_ct_names[pcic_cardtype], voltage);
 
    if (pcic_voltage == PC_CARD_VOLTAGE_04h || pcic_cardtype != PC_CARD_TYPE_PCMCIA)
        return -1;
 
    return 0;
}
 
static int pcmcia_device_reset(void)
{
    USE_DEV9_REGS;
    u16 cstc1, cstc2;
 
    /* The card must be 16-bit (type 2?) */
    if ((DEV9_REG(DEV9_R_1462) & 0x03) != 0)
        return -1;
 
    DEV9_REG(DEV9_R_147E) = 1;
    if (pcic_power(pcic_voltage, 1) < 0)
        return -1;
 
    DEV9_REG(DEV9_R_POWER) = DEV9_REG(DEV9_R_POWER) | 0x02;
    DelayThread(500000);
 
    DEV9_REG(DEV9_R_POWER) = DEV9_REG(DEV9_R_POWER) | 0x01;
    DEV9_REG(DEV9_R_1464) = cstc1 = DEV9_REG(DEV9_R_1464);
    DEV9_REG(DEV9_R_1466) = cstc2 = DEV9_REG(DEV9_R_1466);
    return 0;
}
 
static int card_find_manfid(u32 manfid)
{
    USE_DEV9_REGS;
    USE_SPD_REGS;
    u32 spdaddr, spdend, next, tuple;
    u8 hdr, ofs;
 
    DEV9_REG(DEV9_R_1460) = 2;
    _sw(0x1a00bb, SSBUS_R_1418);
 
    /* Scan the card for the MANFID tuple.  */
    spdaddr = 0;
    spdend  = 0x1000;
    /* I hate this code, and it hates me.  */
    while (spdaddr < spdend) {
        hdr = SPD_REG8(spdaddr) & 0xff;
        spdaddr += 2;
        if (!hdr)
            continue;
        if (hdr == 0xff)
            break;
        if (spdaddr >= spdend)
            goto error;
 
        ofs = SPD_REG8(spdaddr) & 0xff;
        spdaddr += 2;
        if (ofs == 0xff)
            break;
 
        next = spdaddr + (ofs * 2);
        if (next >= spdend)
            goto error;
 
        if (hdr == 0x20) {
            if ((spdaddr + 8) >= spdend)
                goto error;
 
            tuple = (SPD_REG8(spdaddr + 2) << 24) |
                    (SPD_REG8(spdaddr) << 16) |
                    (SPD_REG8(spdaddr + 6) << 8) |
                    SPD_REG8(spdaddr + 4);
            if (manfid == tuple)
                return 0;
            M_PRINTF("MANFID 0x%08lx doesn't match expected 0x%08lx\n",
                     tuple, manfid);
            return -1;
        }
        spdaddr = next;
    }
 
    M_PRINTF("MANFID 0x%08lx not found.\n", manfid);
    return -1;
error:
    M_PRINTF("Invalid tuples at offset 0x%08lx.\n", spdaddr - SPD_REGBASE);
    return -1;
}
 
static int pcmcia_intr(void *unused)
{
    USE_AIF_REGS;
    USE_DEV9_REGS;
    u16 cstc1, cstc2;
 
    (void)unused;
 
    cstc1 = DEV9_REG(DEV9_R_1464);
    cstc2 = DEV9_REG(DEV9_R_1466);
 
    if (using_aif) {
        if (aif_regs[AIF_INTSR] & AIF_INTR_PCMCIA)
            aif_regs[AIF_INTCL] = AIF_INTR_PCMCIA;
        else
            return 0; /* Unknown interrupt.  */
    }
 
    /* Acknowledge the interrupt.  */
    DEV9_REG(DEV9_R_1464) = cstc1;
    DEV9_REG(DEV9_R_1466) = cstc2;
    if (cstc1 & 0x03 || cstc2 & 0x03) { /* Card removed or added? */
        if (p_dev9_intr_cb)
            p_dev9_intr_cb(1);
 
        /* Shutdown the card.  */
        DEV9_REG(DEV9_R_POWER) = 0;
        DEV9_REG(DEV9_R_1474)  = 0;
 
        pcmcia_device_probe();
    }
    if (cstc1 & 0x80 || cstc2 & 0x80) {
        if (p_dev9_intr_cb)
            p_dev9_intr_cb(0);
    }
 
    DEV9_REG(DEV9_R_147E) = 1;
    DEV9_REG(DEV9_R_147E) = 0;
    return 1;
}
 
#ifdef DEV9_ENABLE_AIF
static int aif_pcmcia_intr_handler(void)
{
    USE_AIF_REGS;
 
    aif_regs[AIF_INTCL] = AIF_INTR_PCMCIA;
    pcmcia_intr(NULL);
 
    return 1;
}
 
static int aif_intr(void *unused)
{
    USE_AIF_REGS;
    unsigned int i;
 
    while ((aif_regs[AIF_INTSR] & aif_regs[AIF_INTEN]) != 0) {
        for (i = 0; i < AIF_INUM_COUNT; i++) {
            if ((aif_intr_cbs[i] != NULL) && ((aif_regs[AIF_INTSR] & aif_regs[AIF_INTEN]) & (1 << i))) {
                aif_intr_cbs[i]();
            }
        }
    }
 
    return 1;
}
#endif
 
 
static int pcmcia_init(int sema_attr)
{
    USE_DEV9_REGS;
    USE_AIF_REGS;
    int *mode;
    int flags;
    u16 cstc1, cstc2;
 
    _sw(0x51011, SSBUS_R_1420);
    _sw(0x1a00bb, SSBUS_R_1418);
    _sw(0xef1a3043, SSBUS_R_141c);
 
    /* If we are a T10K, then we go through AIF.  */
    if ((mode = QueryBootMode(6)) != NULL) {
        if ((*(u16 *)mode & 0xfe) == 0x60) {
            M_PRINTF("T10K detected.\n");
 
            if (aif_regs[AIF_IDENT] == 0xa1) {
#ifdef DEV9_ENABLE_AIF
                M_PRINTF("AIF controller revision: %d.\n", aif_regs[AIF_REVISION]);
                aif_regs[AIF_INTCL] = 7; // Clear interrupts.
#else
                aif_regs[AIF_INTEN] = AIF_INTR_PCMCIA;
#endif
                using_aif = 1;
            } else {
                M_PRINTF("AIF not detected.\n");
                return 1;
            }
        }
    }
 
    if (DEV9_REG(DEV9_R_POWER) == 0) {
        DEV9_REG(DEV9_R_POWER) = 0;
        DEV9_REG(DEV9_R_147E)  = 1;
        DEV9_REG(DEV9_R_1460)  = 0;
        DEV9_REG(DEV9_R_1474)  = 0;
        DEV9_REG(DEV9_R_1464) = cstc1 = DEV9_REG(DEV9_R_1464);
        DEV9_REG(DEV9_R_1466) = cstc2 = DEV9_REG(DEV9_R_1466);
        DEV9_REG(DEV9_R_1468)         = 0x10;
        DEV9_REG(DEV9_R_146A)         = 0x90;
        DEV9_REG(DEV9_R_147C)         = 1;
        DEV9_REG(DEV9_R_147A)         = DEV9_REG(DEV9_R_147C);
 
        pcic_voltage  = pcic_get_voltage();
        pcic_cardtype = pcic_get_cardtype();
 
        if (speed_device_init() != 0)
            return 1;
    } else {
        _sw(0xe01a3043, SSBUS_R_1418);
    }
 
    if (dev9_init(sema_attr) != 0)
        return 1;
 
    CpuSuspendIntr(&flags);
#ifdef DEV9_ENABLE_AIF
    if (using_aif) {
        RegisterIntrHandler(IOP_IRQ_DEV9, 1, &aif_intr, NULL);
        aifRegisterIntrCb(AIF_INUM_PCMCIA, &aif_pcmcia_intr_handler);
        aifIntrEnable(AIF_INTR_PCMCIA);
    } else
#endif
    {
        RegisterIntrHandler(IOP_IRQ_DEV9, 1, &pcmcia_intr, NULL);
    }
    EnableIntr(IOP_IRQ_DEV9);
    CpuResumeIntr(flags);
 
    DEV9_REG(DEV9_R_147E) = 0;
 
    if (RegisterLibraryEntries(&_exp_dev9) != 0)
        return 1;
 
    M_PRINTF("CXD9566 (PCMCIA) driver start.\n");
    return 0;
}
 
static void expbay_set_stat(int stat)
{
    USE_DEV9_REGS;
    DEV9_REG(DEV9_R_1464) = stat & 0x3f;
}
 
static int expbay_device_probe(void)
{
    USE_DEV9_REGS;
    return (DEV9_REG(DEV9_R_1462) & 0x01) ? -1 : 0;
}
 
static int expbay_device_reset(void)
{
    USE_DEV9_REGS;
 
    if (expbay_device_probe() < 0)
        return -1;
 
    DEV9_REG(DEV9_R_POWER) = (DEV9_REG(DEV9_R_POWER) & ~1) | 0x04; // power on
    DelayThread(500000);
 
    DEV9_REG(DEV9_R_1460)  = DEV9_REG(DEV9_R_1460) | 0x01;
    DEV9_REG(DEV9_R_POWER) = DEV9_REG(DEV9_R_POWER) | 0x01;
    DelayThread(500000);
    return 0;
}
 
static int expbay_intr(void *unused)
{
    USE_DEV9_REGS;
 
    (void)unused;
 
    if (p_dev9_intr_cb)
        p_dev9_intr_cb(0);
 
    if (!dev9_has_dvr_capability) {
        DEV9_REG(DEV9_R_1466) = 1;
    }
    DEV9_REG(DEV9_R_1466) = 0;
    return 1;
}
 
static int expbay_init(int sema_attr)
{
    USE_DEV9_REGS;
    USE_SPD_REGS;
    int flags;
 
    _sw(0x51011, SSBUS_R_1420);
    _sw(0xe01a3043, SSBUS_R_1418);
    _sw(0xef1a3043, SSBUS_R_141c);
 
    if ((DEV9_REG(DEV9_R_POWER) & 0x04) == 0) { // if not already powered
        DEV9_REG(DEV9_R_1466) = 1;
        DEV9_REG(DEV9_R_1464) = 0;
        DEV9_REG(DEV9_R_1460) = DEV9_REG(DEV9_R_1464);
 
        if (speed_device_init() != 0)
            return 1;
    }
 
    /* Disable control of LED 2 and PIO 3 if the dev9 device does not have DVR capabilities. */
    dev9_has_dvr_capability = (SPD_REG16(SPD_R_REV_3) & SPD_CAPS_DVR) ? 1 : 0;
 
    if (dev9_init(sema_attr) != 0)
        return 1;
 
    CpuSuspendIntr(&flags);
    RegisterIntrHandler(IOP_IRQ_DEV9, 1, &expbay_intr, NULL);
    EnableIntr(IOP_IRQ_DEV9);
    CpuResumeIntr(flags);
 
    DEV9_REG(DEV9_R_1466) = 0;
 
    if (RegisterLibraryEntries(&_exp_dev9) != 0)
        return 1;
 
    M_PRINTF("CXD9611 (SSBUS Buffer) driver start.\n");
    return 0;
}
 
#ifdef DEV9_ENABLE_AIF
int aifIsDetected(void)
{
    return using_aif;
}
 
void aifIntrEnable(int mask)
{
    USE_AIF_REGS;
    int OldState;
 
    CpuSuspendIntr(&OldState);
    aif_regs[AIF_INTEN] |= mask;
    CpuResumeIntr(OldState);
}
 
void aifIntrDisable(int mask)
{
    USE_AIF_REGS;
    int OldState;
 
    CpuSuspendIntr(&OldState);
    aif_regs[AIF_INTEN] &= ~mask;
    CpuResumeIntr(OldState);
}
 
void aifRegisterIntrCb(int intr, aif_intr_cb_t cb)
{
    if (intr < AIF_INUM_COUNT) {
        aif_intr_cbs[intr] = cb;
    }
}
 
int aifRegisterShutdownCb(int idx, dev9_shutdown_cb_t cb)
{
    if (idx < AIF_INUM_COUNT) {
        aif_shutdown_cbs[idx] = cb;
        return 0;
    }
    return -1;
}
 
unsigned char aifRTCReadData(unsigned short int address)
{
    USE_AIF_REGS;
    USE_AIF_RTC_REGS;
 
    return aif_rtc_regs[address & 0x7F];
}
 
void aifRTCWriteData(unsigned char data, unsigned short int address)
{
    USE_AIF_REGS;
    USE_AIF_RTC_REGS;
 
    aif_rtc_regs[address & 0x7F] = data;
}
#endif