+/*
+ * SONET vs. SDH Configuration
+ *
+ * Z0INS (register 0x06): 0 for SONET, 1 for SDH
+ * ENSS (register 0x3D): 0 for SONET, 1 for SDH
+ * LEN16 (register 0x28): 0 for SONET, 1 for SDH (n/a for S/UNI 155 QUAD)
+ * LEN16 (register 0x50): 0 for SONET, 1 for SDH (n/a for S/UNI 155 QUAD)
+ * S[1:0] (register 0x46): 00 for SONET, 10 for SDH
+ */
+
+static int set_sonet(struct atm_dev *dev)
+{
+ if (PRIV(dev)->type == SUNI_MRI_TYPE_PM5355) {
+ PUT(GET(RPOP_RC) & ~SUNI_RPOP_RC_ENSS, RPOP_RC);
+ PUT(GET(SSTB_CTRL) & ~SUNI_SSTB_CTRL_LEN16, SSTB_CTRL);
+ PUT(GET(SPTB_CTRL) & ~SUNI_SPTB_CTRL_LEN16, SPTB_CTRL);
+ }
+
+ REG_CHANGE(SUNI_TPOP_APM_S, SUNI_TPOP_APM_S_SHIFT,
+ SUNI_TPOP_S_SONET, TPOP_APM);
+
+ return 0;
+}
+
+static int set_sdh(struct atm_dev *dev)
+{
+ if (PRIV(dev)->type == SUNI_MRI_TYPE_PM5355) {
+ PUT(GET(RPOP_RC) | SUNI_RPOP_RC_ENSS, RPOP_RC);
+ PUT(GET(SSTB_CTRL) | SUNI_SSTB_CTRL_LEN16, SSTB_CTRL);
+ PUT(GET(SPTB_CTRL) | SUNI_SPTB_CTRL_LEN16, SPTB_CTRL);
+ }
+
+ REG_CHANGE(SUNI_TPOP_APM_S, SUNI_TPOP_APM_S_SHIFT,
+ SUNI_TPOP_S_SDH, TPOP_APM);
+
+ return 0;
+}
+
+
+static int get_framing(struct atm_dev *dev, void __user *arg)
+{
+ int framing;
+ unsigned char s;
+
+
+ s = (GET(TPOP_APM) & SUNI_TPOP_APM_S) >> SUNI_TPOP_APM_S_SHIFT;
+ if (s == SUNI_TPOP_S_SONET)
+ framing = SONET_FRAME_SONET;
+ else
+ framing = SONET_FRAME_SDH;
+
+ return put_user(framing, (int __user *) arg) ? -EFAULT : 0;
+}
+
+static int set_framing(struct atm_dev *dev, void __user *arg)
+{
+ int mode;
+
+ if (get_user(mode, (int __user *) arg))
+ return -EFAULT;
+
+ if (mode == SONET_FRAME_SONET)
+ return set_sonet(dev);
+ else if (mode == SONET_FRAME_SDH)
+ return set_sdh(dev);
+
+ return -EINVAL;
+}
+