Changeset 98807e16 in mainline

Timestamp:

2011-03-06T18:38:30Z (13 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

5620bd4

Parents:

3e37964

Message:

Add setup data parsing and toggle reset

Location:

uspace/drv/uhci-hcd/utils

Files:

• device_keeper.c (modified) (1 diff)
• device_keeper.h (modified) (1 diff)

uspace/drv/uhci-hcd/utils/device_keeper.c

@@ -76 +76 @@
 }
 /*----------------------------------------------------------------------------*/
+void device_keeper_reset_if_need(
+    device_keeper_t *instance, usb_target_t target, const unsigned char *data)
+{
+        assert(instance);
+        fibril_mutex_lock(&instance->guard);
+        if (target.endpoint > 15 || target.endpoint < 0
+            || target.address >= USB_ADDRESS_COUNT || target.address < 0
+            || !instance->devices[target.address].occupied) {
+                goto the_end;
+        }
+
+        switch (data[1])
+        {
+        case 0x01: /*clear feature*/
+                /* recipient is enpoint, value is zero (ENDPOINT_STALL) */
+                if (((data[0] & 0xf) == 1) && ((data[2] | data[3]) == 0)) {
+                        /* enpoint number is < 16, thus first byte is enough */
+                        instance->devices[target.address].toggle_status &= ~(1 << data[4]);
+                }
+        break;
+
+        case 0x9: /* set configuration */
+        case 0x11: /* set interface */
+                instance->devices[target.address].toggle_status = 0;
+        break;
+        }
+the_end:
+        fibril_mutex_unlock(&instance->guard);
+}
+/*----------------------------------------------------------------------------*/
 int device_keeper_get_toggle(device_keeper_t *instance, usb_target_t target)
 {

uspace/drv/uhci-hcd/utils/device_keeper.h

@@ -62 +62 @@
 void device_keeper_release_default(device_keeper_t *instance);
 
+void device_keeper_reset_if_need(
+    device_keeper_t *instance, usb_target_t target, const unsigned char *setup_data);
+
 int device_keeper_get_toggle(device_keeper_t *instance, usb_target_t target);
 
-int device_keeper_set_toggle(device_keeper_t *instance, usb_target_t target, bool toggle);
+int device_keeper_set_toggle(
+    device_keeper_t *instance, usb_target_t target, bool toggle);
 
 usb_address_t device_keeper_request(