Changeset 302f9b2 in mainline for uspace/drv/bus/usb/ohci/root_hub.c

Timestamp:

2011-07-11T18:56:55Z (13 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

2fe28ca1

Parents:

7372a9a0

Message:

OHCI: Root hub: Turn off all ports during initialization.

File:

• uspace/drv/bus/usb/ohci/root_hub.c (modified) (2 diffs)

uspace/drv/bus/usb/ohci/root_hub.c

@@ -181 +181 @@
         instance->registers->rh_desc_a &= ~RHDA_NPS_FLAG;
         instance->registers->rh_desc_a &= ~RHDA_PSM_FLAG;
+        instance->registers->rh_status = RHS_CLEAR_GLOBAL_POWER;
 #else
         /* Set port power mode to no per port power-switching. */
@@ -186 +187 @@
         instance->registers->rh_desc_a |= RHDA_PSM_FLAG;
 
+        /* Control all ports by global switch and turn them off */
+        instance->registers->rh_desc_b &= (RHDB_PCC_MASK << RHDB_PCC_SHIFT);
+        instance->registers->rh_status = RHS_CLEAR_GLOBAL_POWER;
+        /* Return control to per port state */
+        instance->registers->rh_desc_b |=
+                ((1 << (instance->port_count + 1)) - 1) << RHDB_PCC_SHIFT;
 #endif