void dc_start(struct channel *sc)
{
u32 val;
if (!(sc->r.flags & SBE_2T3E3_FLAG_NETWORK_UP))
return;
dc_init(sc);
/* get actual LOS and OOF status */
switch (sc->p.frame_type) {
case SBE_2T3E3_FRAME_TYPE_E3_G751:
case SBE_2T3E3_FRAME_TYPE_E3_G832:
val = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_CONFIGURATION_STATUS_2);
dev_dbg(&sc->pdev->dev, "Start Framer Rx Status = %02X\n", val);
sc->s.OOF = val & SBE_2T3E3_FRAMER_VAL_E3_RX_OOF ? 1 : 0;
break;
case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
case SBE_2T3E3_FRAME_TYPE_T3_M13:
val = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_CONFIGURATION_STATUS);
dev_dbg(&sc->pdev->dev, "Start Framer Rx Status = %02X\n", val);
sc->s.OOF = val & SBE_2T3E3_FRAMER_VAL_T3_RX_OOF ? 1 : 0;
break;
default:
break;
}
cpld_LOS_update(sc);
/* start receive and transmit processes */
dc_transmitter_onoff(sc, SBE_2T3E3_ON);
dc_receiver_onoff(sc, SBE_2T3E3_ON);
/* start interrupts */
dc_start_intr(sc);
}
void t3e3_port_set(struct channel *sc, t3e3_param_t *param)
{
if (param->frame_mode != 0xff)
cpld_set_frame_mode(sc, param->frame_mode);
if (param->fractional_mode != 0xff)
cpld_set_fractional_mode(sc, param->fractional_mode,
param->bandwidth_start,
param->bandwidth_stop);
if (param->pad_count != 0xff)
cpld_set_pad_count(sc, param->pad_count);
if (param->crc != 0xff)
cpld_set_crc(sc, param->crc);
if (param->receiver_on != 0xff)
dc_receiver_onoff(sc, param->receiver_on);
if (param->transmitter_on != 0xff)
dc_transmitter_onoff(sc, param->transmitter_on);
if (param->frame_type != 0xff)
t3e3_set_frame_type(sc, param->frame_type);
if (param->panel != 0xff)
cpld_select_panel(sc, param->panel);
if (param->line_build_out != 0xff)
exar7300_line_build_out_onoff(sc, param->line_build_out);
if (param->receive_equalization != 0xff)
exar7300_receive_equalization_onoff(sc, param->receive_equalization);
if (param->transmit_all_ones != 0xff)
exar7300_transmit_all_ones_onoff(sc, param->transmit_all_ones);
if (param->loopback != 0xff)
t3e3_set_loopback(sc, param->loopback);
if (param->clock_source != 0xff)
cpld_set_clock(sc, param->clock_source);
if (param->scrambler != 0xff)
cpld_set_scrambler(sc, param->scrambler);
}
void dc_stop(struct channel *sc)
{
int wcnt;
/* stop receive and transmit processes */
dc_receiver_onoff(sc, SBE_2T3E3_OFF);
dc_transmitter_onoff(sc, SBE_2T3E3_OFF);
/* turn off ethernet interrupts */
dc_stop_intr(sc);
/* wait to ensure the interrupts have been completed */
for (wcnt = 0; wcnt < MAX_INT_WAIT_CNT; wcnt++) {
udelay(5);
if (!sc->interrupt_active)
break;
}
if (wcnt >= MAX_INT_WAIT_CNT)
dev_warn(&sc->pdev->dev, "SBE 2T3E3: Interrupt active too long\n");
/* clear all receive/transmit data */
dc_drop_descriptor_list(sc);
}
void t3e3_set_loopback(struct channel *sc, u32 mode)
{
u32 tx, rx;
if (sc->p.loopback == mode)
return;
tx = sc->p.transmitter_on;
rx = sc->p.receiver_on;
if (tx == SBE_2T3E3_ON)
dc_transmitter_onoff(sc, SBE_2T3E3_OFF);
if (rx == SBE_2T3E3_ON)
dc_receiver_onoff(sc, SBE_2T3E3_OFF);
switch (sc->p.loopback) {
case SBE_2T3E3_LOOPBACK_NONE:
break;
case SBE_2T3E3_LOOPBACK_ETHERNET:
dc_set_loopback(sc, SBE_2T3E3_21143_VAL_LOOPBACK_OFF);
break;
case SBE_2T3E3_LOOPBACK_FRAMER:
exar7250_set_loopback(sc, SBE_2T3E3_FRAMER_VAL_LOOPBACK_OFF);
break;
case SBE_2T3E3_LOOPBACK_LIU_DIGITAL:
case SBE_2T3E3_LOOPBACK_LIU_ANALOG:
case SBE_2T3E3_LOOPBACK_LIU_REMOTE:
exar7300_set_loopback(sc, SBE_2T3E3_LIU_VAL_LOOPBACK_OFF);
break;
default:
return;
}
switch (mode) {
case SBE_2T3E3_LOOPBACK_NONE:
break;
case SBE_2T3E3_LOOPBACK_ETHERNET:
dc_set_loopback(sc, SBE_2T3E3_21143_VAL_LOOPBACK_INTERNAL);
break;
case SBE_2T3E3_LOOPBACK_FRAMER:
exar7250_set_loopback(sc, SBE_2T3E3_FRAMER_VAL_LOOPBACK_ON);
break;
case SBE_2T3E3_LOOPBACK_LIU_DIGITAL:
exar7300_set_loopback(sc, SBE_2T3E3_LIU_VAL_LOOPBACK_DIGITAL);
break;
case SBE_2T3E3_LOOPBACK_LIU_ANALOG:
exar7300_set_loopback(sc, SBE_2T3E3_LIU_VAL_LOOPBACK_ANALOG);
break;
case SBE_2T3E3_LOOPBACK_LIU_REMOTE:
exar7300_set_loopback(sc, SBE_2T3E3_LIU_VAL_LOOPBACK_REMOTE);
break;
default:
return;
}
sc->p.loopback = mode;
if (tx == SBE_2T3E3_ON)
dc_transmitter_onoff(sc, SBE_2T3E3_ON);
if (rx == SBE_2T3E3_ON)
dc_receiver_onoff(sc, SBE_2T3E3_ON);
}