twl92230.c

xen虚拟机源代码安装包

    case MENELAUS_DCDC_CTRL3:
        s->dcdc[2] = value & 0x07;
        break;

    case MENELAUS_LDO_CTRL1:
        s->ldo[0] = value;
        break;
    case MENELAUS_LDO_CTRL2:
        s->ldo[1] = value & 0x7f;
        /* XXX
         * auto set to 0x7e on M_WaitOn, M_Backup
         */
        break;
    case MENELAUS_LDO_CTRL3:
        s->ldo[2] = value & 3;
        /* XXX
         * auto set to 3 on M_Active, nRESWARM
         * auto set to 0 on M_WaitOn, M_Backup
         */
        break;
    case MENELAUS_LDO_CTRL4:
        s->ldo[3] = value & 3;
        /* XXX
         * auto set to 3 on M_Active, nRESWARM
         * auto set to 0 on M_WaitOn, M_Backup
         */
        break;
    case MENELAUS_LDO_CTRL5:
        s->ldo[4] = value & 3;
        /* XXX
         * auto set to 3 on M_Active, nRESWARM
         * auto set to 0 on M_WaitOn, M_Backup
         */
        break;
    case MENELAUS_LDO_CTRL6:
        s->ldo[5] = value & 3;
        break;
    case MENELAUS_LDO_CTRL7:
        s->ldo[6] = value & 3;
        break;
    case MENELAUS_LDO_CTRL8:
        s->ldo[7] = value & 3;
        break;

    case MENELAUS_SLEEP_CTRL2: reg ++;
    case MENELAUS_SLEEP_CTRL1:
        s->sleep[reg] = value;
        break;

    case MENELAUS_DEVICE_OFF:
        if (value & 1)
            menelaus_reset(&s->i2c);
        break;

    case MENELAUS_OSC_CTRL:
        s->osc = value & 7;
        break;

    case MENELAUS_DETECT_CTRL:
        s->detect = value & 0x7f;
        break;

    case MENELAUS_INT_MASK1:
        s->mask &= 0xf00;
        s->mask |= value << 0;
        menelaus_update(s);
        break;
    case MENELAUS_INT_MASK2:
        s->mask &= 0x0ff;
        s->mask |= value << 8;
        menelaus_update(s);
        break;

    case MENELAUS_INT_ACK1:
        s->status &= ~(((uint16_t) value) << 0);
        menelaus_update(s);
        break;
    case MENELAUS_INT_ACK2:
        s->status &= ~(((uint16_t) value) << 8);
        menelaus_update(s);
        break;

    case MENELAUS_GPIO_CTRL:
        for (line = 0; line < 3; line ++)
            if (((s->dir ^ value) >> line) & 1)
                if (s->handler[line])
                    qemu_set_irq(s->handler[line],
                                    ((s->outputs & ~s->dir) >> line) & 1);
        s->dir = value & 0x67;
        break;
    case MENELAUS_GPIO_OUT:
        for (line = 0; line < 3; line ++)
            if ((((s->outputs ^ value) & ~s->dir) >> line) & 1)
                if (s->handler[line])
                    qemu_set_irq(s->handler[line], (s->outputs >> line) & 1);
        s->outputs = value & 0x07;
        break;

    case MENELAUS_BBSMS:
        s->bbsms = 0x0d;
        break;

    case MENELAUS_RTC_CTRL:
        if ((s->rtc.ctrl ^ value) & 1) {			/* RTC_EN */
            if (value & 1)
                menelaus_rtc_start(s);
            else
                menelaus_rtc_stop(s);
        }
        s->rtc.ctrl = value & 0x1f;
        menelaus_alm_update(s);
        break;
    case MENELAUS_RTC_UPDATE:
        menelaus_rtc_update(s);
        memcpy(&tm, &s->rtc.tm, sizeof(tm));
        switch (value & 0xf) {
        case 0:
            break;
        case 1:
            tm.tm_sec = s->rtc.new.tm_sec;
            break;
        case 2:
            tm.tm_min = s->rtc.new.tm_min;
            break;
        case 3:
            if (s->rtc.new.tm_hour > 23)
                goto rtc_badness;
            tm.tm_hour = s->rtc.new.tm_hour;
            break;
        case 4:
            if (s->rtc.new.tm_mday < 1)
                goto rtc_badness;
            /* TODO check range */
            tm.tm_mday = s->rtc.new.tm_mday;
            break;
        case 5:
            if (s->rtc.new.tm_mon < 0 || s->rtc.new.tm_mon > 11)
                goto rtc_badness;
            tm.tm_mon = s->rtc.new.tm_mon;
            break;
        case 6:
            tm.tm_year = s->rtc.new.tm_year;
            break;
        case 7:
            /* TODO set .tm_mday instead */
            tm.tm_wday = s->rtc.new.tm_wday;
            break;
        case 8:
            if (s->rtc.new.tm_hour > 23)
                goto rtc_badness;
            if (s->rtc.new.tm_mday < 1)
                goto rtc_badness;
            if (s->rtc.new.tm_mon < 0 || s->rtc.new.tm_mon > 11)
                goto rtc_badness;
            tm.tm_sec = s->rtc.new.tm_sec;
            tm.tm_min = s->rtc.new.tm_min;
            tm.tm_hour = s->rtc.new.tm_hour;
            tm.tm_mday = s->rtc.new.tm_mday;
            tm.tm_mon = s->rtc.new.tm_mon;
            tm.tm_year = s->rtc.new.tm_year;
            break;
        rtc_badness:
        default:
            fprintf(stderr, "%s: bad RTC_UPDATE value %02x\n",
                            __FUNCTION__, value);
            s->status |= 1 << 10;				/* RTCERR */
            menelaus_update(s);
        }
        s->rtc.sec_offset = qemu_timedate_diff(&tm);
        break;
    case MENELAUS_RTC_SEC:
        s->rtc.tm.tm_sec = from_bcd(value & 0x7f);
        break;
    case MENELAUS_RTC_MIN:
        s->rtc.tm.tm_min = from_bcd(value & 0x7f);
        break;
    case MENELAUS_RTC_HR:
        s->rtc.tm.tm_hour = (s->rtc.ctrl & (1 << 2)) ?	/* MODE12_n24 */
                MIN(from_bcd(value & 0x3f), 12) + ((value >> 7) ? 11 : -1) :
                from_bcd(value & 0x3f);
        break;
    case MENELAUS_RTC_DAY:
        s->rtc.tm.tm_mday = from_bcd(value);
        break;
    case MENELAUS_RTC_MON:
        s->rtc.tm.tm_mon = MAX(1, from_bcd(value)) - 1;
        break;
    case MENELAUS_RTC_YR:
        s->rtc.tm.tm_year = 2000 + from_bcd(value);
        break;
    case MENELAUS_RTC_WKDAY:
        s->rtc.tm.tm_mday = from_bcd(value);
        break;
    case MENELAUS_RTC_AL_SEC:
        s->rtc.alm.tm_sec = from_bcd(value & 0x7f);
        menelaus_alm_update(s);
        break;
    case MENELAUS_RTC_AL_MIN:
        s->rtc.alm.tm_min = from_bcd(value & 0x7f);
        menelaus_alm_update(s);
        break;
    case MENELAUS_RTC_AL_HR:
        s->rtc.alm.tm_hour = (s->rtc.ctrl & (1 << 2)) ?	/* MODE12_n24 */
                MIN(from_bcd(value & 0x3f), 12) + ((value >> 7) ? 11 : -1) :
                from_bcd(value & 0x3f);
        menelaus_alm_update(s);
        break;
    case MENELAUS_RTC_AL_DAY:
        s->rtc.alm.tm_mday = from_bcd(value);
        menelaus_alm_update(s);
        break;
    case MENELAUS_RTC_AL_MON:
        s->rtc.alm.tm_mon = MAX(1, from_bcd(value)) - 1;
        menelaus_alm_update(s);
        break;
    case MENELAUS_RTC_AL_YR:
        s->rtc.alm.tm_year = 2000 + from_bcd(value);
        menelaus_alm_update(s);
        break;
    case MENELAUS_RTC_COMP_MSB:
        s->rtc.comp &= 0xff;
        s->rtc.comp |= value << 8;
        break;
    case MENELAUS_RTC_COMP_LSB:
        s->rtc.comp &= 0xff << 8;
        s->rtc.comp |= value;
        break;

    case MENELAUS_S1_PULL_EN:
        s->pull[0] = value;
        break;
    case MENELAUS_S1_PULL_DIR:
        s->pull[1] = value & 0x1f;
        break;
    case MENELAUS_S2_PULL_EN:
        s->pull[2] = value;
        break;
    case MENELAUS_S2_PULL_DIR:
        s->pull[3] = value & 0x1f;
        break;

    case MENELAUS_MCT_CTRL1:
        s->mmc_ctrl[0] = value & 0x7f;
        break;
    case MENELAUS_MCT_CTRL2:
        s->mmc_ctrl[1] = value;
        /* TODO update Card Detect interrupts */
        break;
    case MENELAUS_MCT_CTRL3:
        s->mmc_ctrl[2] = value & 0xf;
        break;
    case MENELAUS_DEBOUNCE1:
        s->mmc_debounce = value & 0x3f;
        break;

    default:
#ifdef VERBOSE
        printf("%s: unknown register %02x\n", __FUNCTION__, addr);
#endif
    }
}

static void menelaus_event(i2c_slave *i2c, enum i2c_event event)
{
    struct menelaus_s *s = (struct menelaus_s *) i2c;

    if (event == I2C_START_SEND)
        s->firstbyte = 1;
}

static int menelaus_tx(i2c_slave *i2c, uint8_t data)
{
    struct menelaus_s *s = (struct menelaus_s *) i2c;
    /* Interpret register address byte */
    if (s->firstbyte) {
        s->reg = data;
        s->firstbyte = 0;
    } else
        menelaus_write(s, s->reg ++, data);

    return 0;
}

static int menelaus_rx(i2c_slave *i2c)
{
    struct menelaus_s *s = (struct menelaus_s *) i2c;

    return menelaus_read(s, s->reg ++);
}

static void tm_put(QEMUFile *f, struct tm *tm) {
    qemu_put_be16(f, tm->tm_sec);
    qemu_put_be16(f, tm->tm_min);
    qemu_put_be16(f, tm->tm_hour);
    qemu_put_be16(f, tm->tm_mday);
    qemu_put_be16(f, tm->tm_min);
    qemu_put_be16(f, tm->tm_year);
}

static void tm_get(QEMUFile *f, struct tm *tm) {
    tm->tm_sec = qemu_get_be16(f);
    tm->tm_min = qemu_get_be16(f);
    tm->tm_hour = qemu_get_be16(f);
    tm->tm_mday = qemu_get_be16(f);
    tm->tm_min = qemu_get_be16(f);
    tm->tm_year = qemu_get_be16(f);
}

static void menelaus_save(QEMUFile *f, void *opaque)
{
    struct menelaus_s *s = (struct menelaus_s *) opaque;

    qemu_put_be32(f, s->firstbyte);
    qemu_put_8s(f, &s->reg);

    qemu_put_8s(f, &s->vcore[0]);
    qemu_put_8s(f, &s->vcore[1]);
    qemu_put_8s(f, &s->vcore[2]);
    qemu_put_8s(f, &s->vcore[3]);
    qemu_put_8s(f, &s->vcore[4]);
    qemu_put_8s(f, &s->dcdc[3]);
    qemu_put_8s(f, &s->dcdc[3]);
    qemu_put_8s(f, &s->dcdc[3]);
    qemu_put_8s(f, &s->ldo[0]);
    qemu_put_8s(f, &s->ldo[1]);
    qemu_put_8s(f, &s->ldo[2]);
    qemu_put_8s(f, &s->ldo[3]);
    qemu_put_8s(f, &s->ldo[4]);
    qemu_put_8s(f, &s->ldo[5]);
    qemu_put_8s(f, &s->ldo[6]);
    qemu_put_8s(f, &s->ldo[7]);
    qemu_put_8s(f, &s->sleep[0]);
    qemu_put_8s(f, &s->sleep[1]);
    qemu_put_8s(f, &s->osc);
    qemu_put_8s(f, &s->detect);
    qemu_put_be16s(f, &s->mask);
    qemu_put_be16s(f, &s->status);
    qemu_put_8s(f, &s->dir);
    qemu_put_8s(f, &s->inputs);
    qemu_put_8s(f, &s->outputs);
    qemu_put_8s(f, &s->bbsms);
    qemu_put_8s(f, &s->pull[0]);
    qemu_put_8s(f, &s->pull[1]);
    qemu_put_8s(f, &s->pull[2]);
    qemu_put_8s(f, &s->pull[3]);
    qemu_put_8s(f, &s->mmc_ctrl[0]);
    qemu_put_8s(f, &s->mmc_ctrl[1]);
    qemu_put_8s(f, &s->mmc_ctrl[2]);
    qemu_put_8s(f, &s->mmc_debounce);
    qemu_put_8s(f, &s->rtc.ctrl);
    qemu_put_be16s(f, &s->rtc.comp);
    /* Should be <= 1000 */
    qemu_put_be16(f, s->rtc.next - qemu_get_clock(rt_clock));
    tm_put(f, &s->rtc.new);
    tm_put(f, &s->rtc.alm);
    qemu_put_byte(f, s->pwrbtn_state);

    i2c_slave_save(f, &s->i2c);
}

static int menelaus_load(QEMUFile *f, void *opaque, int version_id)
{
    struct menelaus_s *s = (struct menelaus_s *) opaque;

    s->firstbyte = qemu_get_be32(f);
    qemu_get_8s(f, &s->reg);

    if (s->rtc.ctrl & 1)					/* RTC_EN */
        menelaus_rtc_stop(s);
    qemu_get_8s(f, &s->vcore[0]);
    qemu_get_8s(f, &s->vcore[1]);
    qemu_get_8s(f, &s->vcore[2]);
    qemu_get_8s(f, &s->vcore[3]);
    qemu_get_8s(f, &s->vcore[4]);
    qemu_get_8s(f, &s->dcdc[3]);
    qemu_get_8s(f, &s->dcdc[3]);
    qemu_get_8s(f, &s->dcdc[3]);
    qemu_get_8s(f, &s->ldo[0]);
    qemu_get_8s(f, &s->ldo[1]);
    qemu_get_8s(f, &s->ldo[2]);
    qemu_get_8s(f, &s->ldo[3]);
    qemu_get_8s(f, &s->ldo[4]);
    qemu_get_8s(f, &s->ldo[5]);
    qemu_get_8s(f, &s->ldo[6]);
    qemu_get_8s(f, &s->ldo[7]);
    qemu_get_8s(f, &s->sleep[0]);
    qemu_get_8s(f, &s->sleep[1]);
    qemu_get_8s(f, &s->osc);
    qemu_get_8s(f, &s->detect);
    qemu_get_be16s(f, &s->mask);
    qemu_get_be16s(f, &s->status);
    qemu_get_8s(f, &s->dir);
    qemu_get_8s(f, &s->inputs);
    qemu_get_8s(f, &s->outputs);
    qemu_get_8s(f, &s->bbsms);
    qemu_get_8s(f, &s->pull[0]);
    qemu_get_8s(f, &s->pull[1]);
    qemu_get_8s(f, &s->pull[2]);
    qemu_get_8s(f, &s->pull[3]);
    qemu_get_8s(f, &s->mmc_ctrl[0]);
    qemu_get_8s(f, &s->mmc_ctrl[1]);
    qemu_get_8s(f, &s->mmc_ctrl[2]);
    qemu_get_8s(f, &s->mmc_debounce);
    qemu_get_8s(f, &s->rtc.ctrl);
    qemu_get_be16s(f, &s->rtc.comp);
    s->rtc.next = qemu_get_be16(f);
    tm_get(f, &s->rtc.new);
    tm_get(f, &s->rtc.alm);
    s->pwrbtn_state = qemu_get_byte(f);
    menelaus_alm_update(s);
    menelaus_update(s);
    if (s->rtc.ctrl & 1)					/* RTC_EN */
        menelaus_rtc_start(s);

    i2c_slave_load(f, &s->i2c);
    return 0;
}

static int menelaus_iid = 0;

i2c_slave *twl92230_init(i2c_bus *bus, qemu_irq irq)
{
    struct menelaus_s *s = (struct menelaus_s *)
            i2c_slave_init(bus, 0, sizeof(struct menelaus_s));

    s->i2c.event = menelaus_event;
    s->i2c.recv = menelaus_rx;
    s->i2c.send = menelaus_tx;

    s->irq = irq;
    s->rtc.hz = qemu_new_timer(rt_clock, menelaus_rtc_hz, s);
    s->in = qemu_allocate_irqs(menelaus_gpio_set, s, 3);
    s->pwrbtn = qemu_allocate_irqs(menelaus_pwrbtn_set, s, 1)[0];

    menelaus_reset(&s->i2c);

    register_savevm("menelaus", menelaus_iid ++,
                    0, menelaus_save, menelaus_load, s);

    return &s->i2c;
}

qemu_irq *twl92230_gpio_in_get(i2c_slave *i2c)
{
    struct menelaus_s *s = (struct menelaus_s *) i2c;

    return s->in;
}

void twl92230_gpio_out_set(i2c_slave *i2c, int line, qemu_irq handler)
{
    struct menelaus_s *s = (struct menelaus_s *) i2c;

    if (line >= 3 || line < 0) {
        fprintf(stderr, "%s: No GPO line %i\n", __FUNCTION__, line);
        exit(-1);
    }
    s->handler[line] = handler;
}