Changeset 284c629 in mainline

Timestamp:

2011-02-01T21:01:39Z (14 years ago)

Author:

Vojtech Horky <vojtechhorky@…>

Branches:

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

Children:

0a37e14

Parents:

33b88723

Message:

Virtual HC handles atomic control transfers

File:

• uspace/drv/vhc/connhost.c (modified) (6 diffs)

uspace/drv/vhc/connhost.c

@@ -42 +42 @@
 #include "hc.h"
 
+
 typedef struct {
         usb_direction_t direction;
@@ -47 +48 @@
         usbhc_iface_transfer_in_callback_t in_callback;
         device_t *dev;
+        size_t reported_size;
         void *arg;
 } transfer_info_t;
 
+typedef struct {
+        usb_direction_t direction;
+        usb_target_t target;
+        usbhc_iface_transfer_out_callback_t out_callback;
+        usbhc_iface_transfer_in_callback_t in_callback;
+        device_t *dev;
+        void *arg;
+        void *data_buffer;
+        size_t data_buffer_size;
+} control_transfer_info_t;
+
 static void universal_callback(void *buffer, size_t size,
     usb_transaction_outcome_t outcome, void *arg)
 {
         transfer_info_t *transfer = (transfer_info_t *) arg;
+
+        if (transfer->reported_size != (size_t) -1) {
+                size = transfer->reported_size;
+        }
 
         switch (transfer->direction) {
@@ -84 +101 @@
         transfer->arg = arg;
         transfer->dev = dev;
+        transfer->reported_size = (size_t) -1;
+
+        return transfer;
+}
+
+static void control_abort_prematurely(control_transfer_info_t *transfer,
+    size_t size, usb_transaction_outcome_t outcome)
+{
+        switch (transfer->direction) {
+                case USB_DIRECTION_IN:
+                        transfer->in_callback(transfer->dev,
+                            outcome, size,
+                            transfer->arg);
+                        break;
+                case USB_DIRECTION_OUT:
+                        transfer->out_callback(transfer->dev,
+                            outcome,
+                            transfer->arg);
+                        break;
+                default:
+                        assert(false && "unreachable");
+                        break;
+        }
+}
+
+static void control_callback_two(void *buffer, size_t size,
+    usb_transaction_outcome_t outcome, void *arg)
+{
+        control_transfer_info_t *ctrl_transfer = (control_transfer_info_t *) arg;
+
+        if (outcome != USB_OUTCOME_OK) {
+                control_abort_prematurely(ctrl_transfer, outcome, size);
+                free(ctrl_transfer);
+                return;
+        }
+
+        transfer_info_t *transfer  = create_transfer_info(ctrl_transfer->dev,
+            ctrl_transfer->direction, ctrl_transfer->arg);
+        transfer->out_callback = ctrl_transfer->out_callback;
+        transfer->in_callback = ctrl_transfer->in_callback;
+        transfer->reported_size = size;
+
+        switch (ctrl_transfer->direction) {
+                case USB_DIRECTION_IN:
+                        hc_add_transaction_to_device(false, ctrl_transfer->target,
+                            USB_TRANSFER_CONTROL,
+                            NULL, 0,
+                            universal_callback, transfer);
+                        break;
+                case USB_DIRECTION_OUT:
+                        hc_add_transaction_from_device(ctrl_transfer->target,
+                            USB_TRANSFER_CONTROL,
+                            NULL, 0,
+                            universal_callback, transfer);
+                        break;
+                default:
+                        assert(false && "unreachable");
+                        break;
+        }
+
+        free(ctrl_transfer);
+}
+
+static void control_callback_one(void *buffer, size_t size,
+    usb_transaction_outcome_t outcome, void *arg)
+{
+        control_transfer_info_t *transfer = (control_transfer_info_t *) arg;
+
+        if (outcome != USB_OUTCOME_OK) {
+                control_abort_prematurely(transfer, outcome, size);
+                free(transfer);
+                return;
+        }
+
+        switch (transfer->direction) {
+                case USB_DIRECTION_IN:
+                        hc_add_transaction_from_device(transfer->target,
+                            USB_TRANSFER_CONTROL,
+                            transfer->data_buffer, transfer->data_buffer_size,
+                            control_callback_two, transfer);
+                        break;
+                case USB_DIRECTION_OUT:
+                        hc_add_transaction_to_device(false, transfer->target,
+                            USB_TRANSFER_CONTROL,
+                            transfer->data_buffer, transfer->data_buffer_size,
+                            control_callback_two, transfer);
+                        break;
+                default:
+                        assert(false && "unreachable");
+                        break;
+        }
+}
+
+static control_transfer_info_t *create_control_transfer_info(device_t *dev,
+    usb_direction_t direction, usb_target_t target,
+    void *data_buffer, size_t data_buffer_size,
+    void *arg)
+{
+        control_transfer_info_t *transfer
+            = malloc(sizeof(control_transfer_info_t));
+
+        transfer->direction = direction;
+        transfer->target = target;
+        transfer->in_callback = NULL;
+        transfer->out_callback = NULL;
+        transfer->arg = arg;
+        transfer->dev = dev;
+        transfer->data_buffer = data_buffer;
+        transfer->data_buffer_size = data_buffer_size;
 
         return transfer;
@@ -193 +319 @@
 }
 
+static int control_write(device_t *dev, usb_target_t target,
+    void *setup_packet, size_t setup_packet_size,
+    void *data, size_t data_size,
+    usbhc_iface_transfer_out_callback_t callback, void *arg)
+{
+        control_transfer_info_t *transfer
+            = create_control_transfer_info(dev, USB_DIRECTION_OUT, target,
+            data, data_size, arg);
+        transfer->out_callback = callback;
+
+        hc_add_transaction_to_device(true, target, USB_TRANSFER_CONTROL,
+            setup_packet, setup_packet_size,
+            control_callback_one, transfer);
+
+        return EOK;
+}
+
 static int control_read_setup(device_t *dev, usb_target_t target,
     void *data, size_t size,
@@ -217 +360 @@
             NULL, 0,
             callback, arg);
+}
+
+static int control_read(device_t *dev, usb_target_t target,
+    void *setup_packet, size_t setup_packet_size,
+    void *data, size_t data_size,
+    usbhc_iface_transfer_in_callback_t callback, void *arg)
+{
+        control_transfer_info_t *transfer
+            = create_control_transfer_info(dev, USB_DIRECTION_IN, target,
+            data, data_size, arg);
+        transfer->in_callback = callback;
+
+        hc_add_transaction_to_device(true, target, USB_TRANSFER_CONTROL,
+            setup_packet, setup_packet_size,
+            control_callback_one, transfer);
+
+        return EOK;
 }
 
@@ -290 +450 @@
         .control_write_status = control_write_status,
 
+        .control_write = control_write,
+
         .control_read_setup = control_read_setup,
         .control_read_data = control_read_data,
-        .control_read_status = control_read_status
+        .control_read_status = control_read_status,
+
+        .control_read = control_read
 };