--- /dev/null
+/*
+ * SBE 2T3E3 synchronous serial card driver for Linux
+ *
+ * Copyright (C) 2009-2010 Krzysztof Halasa <khc@pm.waw.pl>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This code is based on a driver written by SBE Inc.
+ */
+
+#include "2t3e3.h"
+#include "ctrl.h"
+
+void exar7250_init(struct channel *sc)
+{
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_OPERATING_MODE,
+ SBE_2T3E3_FRAMER_VAL_T3_CBIT |
+ SBE_2T3E3_FRAMER_VAL_INTERRUPT_ENABLE_RESET |
+ SBE_2T3E3_FRAMER_VAL_TIMING_ASYNCH_TXINCLK);
+
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_IO_CONTROL,
+ SBE_2T3E3_FRAMER_VAL_DISABLE_TX_LOSS_OF_CLOCK |
+ SBE_2T3E3_FRAMER_VAL_DISABLE_RX_LOSS_OF_CLOCK |
+ SBE_2T3E3_FRAMER_VAL_AMI_LINE_CODE |
+ SBE_2T3E3_FRAMER_VAL_RX_LINE_CLOCK_INVERT);
+
+ exar7250_set_frame_type(sc, SBE_2T3E3_FRAME_TYPE_T3_CBIT);
+}
+
+void exar7250_set_frame_type(struct channel *sc, u32 type)
+{
+ u32 val;
+
+ switch (type) {
+ case SBE_2T3E3_FRAME_TYPE_E3_G751:
+ case SBE_2T3E3_FRAME_TYPE_E3_G832:
+ case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
+ case SBE_2T3E3_FRAME_TYPE_T3_M13:
+ break;
+ default:
+ return;
+ }
+
+ exar7250_stop_intr(sc, type);
+
+ val = exar7250_read(sc, SBE_2T3E3_FRAMER_REG_OPERATING_MODE);
+ val &= ~(SBE_2T3E3_FRAMER_VAL_LOCAL_LOOPBACK_MODE |
+ SBE_2T3E3_FRAMER_VAL_T3_E3_SELECT |
+ SBE_2T3E3_FRAMER_VAL_FRAME_FORMAT_SELECT);
+ switch (type) {
+ case SBE_2T3E3_FRAME_TYPE_E3_G751:
+ val |= SBE_2T3E3_FRAMER_VAL_E3_G751;
+ break;
+ case SBE_2T3E3_FRAME_TYPE_E3_G832:
+ val |= SBE_2T3E3_FRAMER_VAL_E3_G832;
+ break;
+ case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
+ val |= SBE_2T3E3_FRAMER_VAL_T3_CBIT;
+ break;
+ case SBE_2T3E3_FRAME_TYPE_T3_M13:
+ val |= SBE_2T3E3_FRAMER_VAL_T3_M13;
+ break;
+ default:
+ return;
+ }
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_OPERATING_MODE, val);
+ exar7250_start_intr(sc, type);
+}
+
+
+void exar7250_start_intr(struct channel *sc, u32 type)
+{
+ u32 val;
+
+ switch (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);
+#if 0
+ sc->s.LOS = val & SBE_2T3E3_FRAMER_VAL_E3_RX_LOS ? 1 : 0;
+#else
+ cpld_LOS_update(sc);
+#endif
+ sc->s.OOF = val & SBE_2T3E3_FRAMER_VAL_E3_RX_OOF ? 1 : 0;
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_STATUS_1);
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_ENABLE_1,
+ SBE_2T3E3_FRAMER_VAL_E3_RX_OOF_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_E3_RX_LOS_INTERRUPT_ENABLE);
+#if 0
+ /*SBE_2T3E3_FRAMER_VAL_E3_RX_COFA_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_E3_RX_OOF_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_E3_RX_LOF_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_E3_RX_LOS_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_E3_RX_AIS_INTERRUPT_ENABLE);*/
+#endif
+
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_STATUS_2);
+#if 0
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_ENABLE_2,
+ SBE_2T3E3_FRAMER_VAL_E3_RX_FEBE_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_E3_RX_FERF_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_E3_RX_FRAMING_BYTE_ERROR_INTERRUPT_ENABLE);
+#endif
+ 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);
+#if 0
+ sc->s.LOS = val & SBE_2T3E3_FRAMER_VAL_T3_RX_LOS ? 1 : 0;
+#else
+ cpld_LOS_update(sc);
+#endif
+ sc->s.OOF = val & SBE_2T3E3_FRAMER_VAL_T3_RX_OOF ? 1 : 0;
+
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_INTERRUPT_STATUS);
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_INTERRUPT_ENABLE,
+ SBE_2T3E3_FRAMER_VAL_T3_RX_LOS_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_T3_RX_OOF_INTERRUPT_ENABLE);
+#if 0
+ /* SBE_2T3E3_FRAMER_VAL_T3_RX_CP_BIT_ERROR_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_T3_RX_LOS_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_T3_RX_AIS_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_T3_RX_IDLE_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_T3_RX_FERF_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_T3_RX_AIC_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_T3_RX_OOF_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_T3_RX_P_BIT_INTERRUPT_ENABLE);*/
+#endif
+
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_FEAC_INTERRUPT_ENABLE_STATUS);
+#if 0
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_FEAC_INTERRUPT_ENABLE_STATUS,
+ SBE_2T3E3_FRAMER_VAL_T3_RX_FEAC_REMOVE_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_T3_RX_FEAC_VALID_INTERRUPT_ENABLE);
+#endif
+
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_LAPD_CONTROL, 0);
+ break;
+
+ default:
+ return;
+ }
+
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_BLOCK_INTERRUPT_STATUS);
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_BLOCK_INTERRUPT_ENABLE,
+ SBE_2T3E3_FRAMER_VAL_RX_INTERRUPT_ENABLE |
+ SBE_2T3E3_FRAMER_VAL_TX_INTERRUPT_ENABLE);
+}
+
+
+void exar7250_stop_intr(struct channel *sc, u32 type)
+{
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_BLOCK_INTERRUPT_ENABLE, 0);
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_BLOCK_INTERRUPT_STATUS);
+
+ switch (type) {
+ case SBE_2T3E3_FRAME_TYPE_E3_G751:
+ case SBE_2T3E3_FRAME_TYPE_E3_G832:
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_ENABLE_1, 0);
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_STATUS_1);
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_ENABLE_2, 0);
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_INTERRUPT_STATUS_2);
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_RX_LAPD_CONTROL, 0);
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_RX_LAPD_CONTROL);
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_E3_TX_LAPD_STATUS, 0);
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_E3_TX_LAPD_STATUS);
+ break;
+
+ case SBE_2T3E3_FRAME_TYPE_T3_CBIT:
+ case SBE_2T3E3_FRAME_TYPE_T3_M13:
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_INTERRUPT_ENABLE, 0);
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_INTERRUPT_STATUS);
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_FEAC_INTERRUPT_ENABLE_STATUS, 0);
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_FEAC_INTERRUPT_ENABLE_STATUS);
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_RX_LAPD_CONTROL, 0);
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_RX_LAPD_CONTROL);
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_TX_FEAC_CONFIGURATION_STATUS, 0);
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_TX_FEAC_CONFIGURATION_STATUS);
+ exar7250_write(sc, SBE_2T3E3_FRAMER_REG_T3_TX_LAPD_STATUS, 0);
+ exar7250_read(sc, SBE_2T3E3_FRAMER_REG_T3_TX_LAPD_STATUS);
+ break;
+ }
+}
+
+
+
+
+void exar7250_unipolar_onoff(struct channel *sc, u32 mode)
+{
+ switch (mode) {
+ case SBE_2T3E3_OFF:
+ exar7300_clear_bit(sc, SBE_2T3E3_FRAMER_REG_IO_CONTROL,
+ SBE_2T3E3_FRAMER_VAL_UNIPOLAR);
+ break;
+ case SBE_2T3E3_ON:
+ exar7300_set_bit(sc, SBE_2T3E3_FRAMER_REG_IO_CONTROL,
+ SBE_2T3E3_FRAMER_VAL_UNIPOLAR);
+ break;
+ }
+}
+
+void exar7250_set_loopback(struct channel *sc, u32 mode)
+{
+ switch (mode) {
+ case SBE_2T3E3_FRAMER_VAL_LOOPBACK_OFF:
+ exar7300_clear_bit(sc, SBE_2T3E3_FRAMER_REG_OPERATING_MODE,
+ SBE_2T3E3_FRAMER_VAL_LOCAL_LOOPBACK_MODE);
+ break;
+ case SBE_2T3E3_FRAMER_VAL_LOOPBACK_ON:
+ exar7300_set_bit(sc, SBE_2T3E3_FRAMER_REG_OPERATING_MODE,
+ SBE_2T3E3_FRAMER_VAL_LOCAL_LOOPBACK_MODE);
+ break;
+ }
+}
projects / mv-sheeva.git / blobdiff