Author: np
Date: Fri Sep 12 21:56:57 2014
New Revision: 271490
URL: http://svnweb.freebsd.org/changeset/base/271490

Log:
  cxgbe(4): add support for the SIOCGI2C ioctl.

Modified:
  head/sys/dev/cxgbe/t4_main.c

Modified: head/sys/dev/cxgbe/t4_main.c
==============================================================================
--- head/sys/dev/cxgbe/t4_main.c        Fri Sep 12 21:29:10 2014        
(r271489)
+++ head/sys/dev/cxgbe/t4_main.c        Fri Sep 12 21:56:57 2014        
(r271490)
@@ -1378,6 +1378,31 @@ fail:
                ifmedia_ioctl(ifp, ifr, &pi->media, cmd);
                break;
 
+       case SIOCGI2C: {
+               struct ifi2creq i2c;
+
+               rc = copyin(ifr->ifr_data, &i2c, sizeof(i2c));
+               if (rc != 0)
+                       break;
+               if (i2c.dev_addr != 0xA0 && i2c.dev_addr != 0xA2) {
+                       rc = EPERM;
+                       break;
+               }
+               if (i2c.len > sizeof(i2c.data)) {
+                       rc = EINVAL;
+                       break;
+               }
+               rc = begin_synchronized_op(sc, pi, SLEEP_OK | INTR_OK, "t4i2c");
+               if (rc)
+                       return (rc);
+               rc = -t4_i2c_rd(sc, sc->mbox, pi->port_id, i2c.dev_addr,
+                   i2c.offset, i2c.len, &i2c.data[0]);
+               end_synchronized_op(sc, 0);
+               if (rc == 0)
+                       rc = copyout(&i2c, ifr->ifr_data, sizeof(i2c));
+               break;
+       }
+
        default:
                rc = ether_ioctl(ifp, cmd, data);
        }
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