Changeset c8dd5b1 in mainline

Timestamp:

2011-02-07T13:39:21Z (14 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

52b7f15f

Parents:

9e80904

Message:

Adds tracker interrupt_in and interrupt_out implementaion

File:

• uspace/drv/uhci-hcd/tracker.c (modified) (5 diffs)

uspace/drv/uhci-hcd/tracker.c

@@ -163 +163 @@
             instance->buffer_size - instance->buffer_offset);
 
+        //TODO: add toggle here
         transfer_descriptor_init(instance->td, DEFAULT_ERROR_COUNT,
             instance->packet_size, false, instance->target, USB_PID_IN,
@@ -171 +172 @@
         /* set next step */
         if ((instance->buffer_offset + instance->packet_size)
-            < instance->buffer_size) {
+            >= instance->buffer_size) {
                 /* that's all, end coomunication */
                 instance->next_step = tracker_control_read_status;
@@ -196 +197 @@
         memcpy(instance->packet, instance->buffer + instance->buffer_offset,
             instance->packet_size);
+
+        // TODO: add toggle here
         transfer_descriptor_init(instance->td, DEFAULT_ERROR_COUNT,
             instance->packet_size, false, instance->target, USB_PID_OUT,
@@ -204 +207 @@
         /* set next step */
         if ((instance->buffer_offset + instance->packet_size)
-            < instance->buffer_size) {
+            >= instance->buffer_size) {
                 /* that's all, end coomunication */
                 instance->next_step = tracker_control_write_status;
@@ -268 +271 @@
 void tracker_interrupt_in(tracker_t *instance)
 {
+        assert(instance);
+
+        /* check for errors */
+        int err = transfer_descriptor_status(instance->td);
+        if (err != EOK) {
+                tracker_call_in_and_dispose(instance);
+                return;
+        }
+
+        if (instance->packet_size) {
+                /* we are data in, we want data from our device. if there is data */
+                memcpy(instance->buffer + instance->buffer_offset, instance->packet,
+                                instance->packet_size);
+                instance->buffer_offset += instance->packet_size;
+        }
+
+        /* prepare next packet, no copy, we are receiving data */
+        instance->packet_size = MIN(instance->max_packet_size,
+                        instance->buffer_size - instance->buffer_offset);
+
+        //TODO: add toggle here
+        transfer_descriptor_init(instance->td, DEFAULT_ERROR_COUNT,
+            instance->packet_size, false, instance->target, USB_PID_IN,
+            instance->packet);
+
+        tracker_schedule(instance);
+
+        /* set next step */
+        if ((instance->buffer_offset + instance->packet_size)
+            >= instance->buffer_size) {
+                /* that's all, end coomunication */
+                instance->next_step = tracker_call_in_and_dispose;
+        }
 }
 /*----------------------------------------------------------------------------*/
 void tracker_interrupt_out(tracker_t *instance)
 {
+        assert(instance);
+
+        /* check for errors */
+        int err = transfer_descriptor_status(instance->td);
+        if (err != EOK) {
+                tracker_call_out_and_dispose(instance);
+                return;
+        }
+
+        /* we are data out, we down't want data from our device */
+        instance->buffer_offset += instance->packet_size;
+
+        /* prepare next packet, copy data to packet */
+        instance->packet_size = MIN(instance->max_packet_size,
+            instance->buffer_size - instance->buffer_offset);
+        memcpy(instance->packet, instance->buffer + instance->buffer_offset,
+            instance->packet_size);
+
+        // TODO: add toggle here
+        transfer_descriptor_init(instance->td, DEFAULT_ERROR_COUNT,
+            instance->packet_size, false, instance->target, USB_PID_OUT,
+            instance->packet);
+
+        tracker_schedule(instance);
+
+        /* set next step */
+        if ((instance->buffer_offset + instance->packet_size)
+            >= instance->buffer_size) {
+                /* that's all, end coomunication */
+                instance->next_step = tracker_call_out_and_dispose;
+        }
 }
 /*----------------------------------------------------------------------------*/