int
drm_open(struct dev_open_args *ap)
{
struct cdev *kdev = ap->a_head.a_dev;
int flags = ap->a_oflags;
int fmt = 0;
struct thread *p = curthread;
struct drm_device *dev;
int retcode;
dev = DRIVER_SOFTC(minor(kdev));
if (dev == NULL)
return (ENXIO);
DRM_DEBUG("open_count = %d\n", dev->open_count);
retcode = drm_open_helper(kdev, flags, fmt, p, dev, ap->a_fp);
if (retcode == 0) {
atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
DRM_LOCK(dev);
device_busy(dev->dev);
if (!dev->open_count++)
retcode = drm_setup(dev);
DRM_UNLOCK(dev);
}
DRM_DEBUG("return %d\n", retcode);
return (retcode);
}
static int
dektec_open (struct cdev *cdev, int flag, int otyp, struct thread *td)
{
struct dektec_sc *sc = cdev->si_drv1;
device_busy (sc->dev);
mtx_lock (&sc->dektec_mtx);
sc->tx_watermark = 0;
sc->rx_watermark = 0;
mtx_unlock (&sc->dektec_mtx);
dta1xx_gen_ctrl_reg_reset (sc->dta_base_bt, sc->dta_base_bh, sc->gen_base);
dta1xx_gen_ctrl_reg_set_per_int_val (sc->dta_base_bt, sc->dta_base_bh, sc->gen_base, 4); /* 145 */
dta1xx_gen_ctrl_reg_set_per_int_en (sc->dta_base_bt, sc->dta_base_bh, sc->gen_base, 1);
switch (sc->model) {
case BOARD_MODEL_140:
break;
case BOARD_MODEL_145:
case BOARD_MODEL_2145:
/* ASI/SDI Transmit (Tx) channel 0 at 0x180 (rx_base + 0x80) */
dta1xx_tx_ctrl_reg_set_output_en (sc->dta_base_bt, sc->dta_base_bh, sc->rx_base + 0x80, 0);
dta1xx_tx_ctrl_reg_set_output_en (sc->dta_base_bt, sc->dta_base_bh, sc->tx_base, 1);
dta1xx_dma_timeout_set (sc->dta_base_bt, sc->dta_base_bh, sc->dma_base0, 0);
dta1xx_dma_timeout_set (sc->dta_base_bt, sc->dta_base_bh, sc->dma_base1, 0);
break;
}
return 0;
}
void
capture_scanner::validate_reply (void) const
{
if (byte (0x80) == rep_)
return;
if (byte (0x40) == rep_)
BOOST_THROW_EXCEPTION (device_busy ());
if (NAK == rep_)
BOOST_THROW_EXCEPTION (invalid_command ());
BOOST_THROW_EXCEPTION (unknown_reply ());
}