Changeset 0e06a14 in mainline

Timestamp:

2011-03-04T23:15:27Z (13 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

80fdffe, c5b93dc

Parents:

f5246b6

Message:

Adds support for bulk transfers

Unifies data transfer initialization

Location:

uspace/drv/uhci-hcd

Files:

• batch.c (modified) (2 diffs)
• batch.h (modified) (1 diff)
• iface.c (modified) (3 diffs)

uspace/drv/uhci-hcd/batch.c

@@ -49 +49 @@
 static void batch_control(
     batch_t *instance, int data_stage, int status_stage);
+static void batch_data(batch_t *instance, int pid);
 static void batch_call_in(batch_t *instance);
 static void batch_call_out(batch_t *instance);
@@ -192 +193 @@
 {
         assert(instance);
-
+        batch_data(instance, USB_PID_IN);
+        instance->next_step = batch_call_in_and_dispose;
+        usb_log_debug("Batch(%p) INTERRUPT IN initialized.\n", instance);
+        batch_schedule(instance);
+}
+/*----------------------------------------------------------------------------*/
+void batch_interrupt_out(batch_t *instance)
+{
+        assert(instance);
+        memcpy(instance->transport_buffer, instance->buffer, instance->buffer_size);
+        batch_data(instance, USB_PID_OUT);
+        instance->next_step = batch_call_out_and_dispose;
+        usb_log_debug("Batch(%p) INTERRUPT OUT initialized.\n", instance);
+        batch_schedule(instance);
+}
+/*----------------------------------------------------------------------------*/
+void batch_bulk_in(batch_t *instance)
+{
+        assert(instance);
+        batch_data(instance, USB_PID_IN);
+        instance->next_step = batch_call_in_and_dispose;
+        usb_log_debug("Batch(%p) BULK IN initialized.\n", instance);
+        batch_schedule(instance);
+}
+/*----------------------------------------------------------------------------*/
+void batch_bulk_out(batch_t *instance)
+{
+        assert(instance);
+        memcpy(instance->transport_buffer, instance->buffer, instance->buffer_size);
+        batch_data(instance, USB_PID_OUT);
+        instance->next_step = batch_call_out_and_dispose;
+        usb_log_debug("Batch(%p) BULK OUT initialized.\n", instance);
+        batch_schedule(instance);
+}
+/*----------------------------------------------------------------------------*/
+static void batch_data(batch_t *instance, int pid)
+{
+        assert(instance);
         const bool low_speed = instance->speed == USB_SPEED_LOW;
         int toggle = 1;
-        size_t i = 0;
-        for (;i < instance->packets; ++i) {
+
+        size_t packet = 0;
+        size_t remain_size = instance->buffer_size;
+        while (remain_size > 0) {
                 char *data =
-                    instance->transport_buffer + (i  * instance->max_packet_size);
-                transfer_descriptor_t *next = (i + 1) < instance->packets ?
-                    &instance->tds[i + 1] : NULL;
+                    instance->transport_buffer + instance->buffer_size
+                    - remain_size;
+
                 toggle = 1 - toggle;
 
-                transfer_descriptor_init(&instance->tds[i], DEFAULT_ERROR_COUNT,
-                    instance->max_packet_size, toggle, false, low_speed,
-                    instance->target, USB_PID_IN, data, next);
-        }
-
-        instance->tds[i - 1].status |= TD_STATUS_COMPLETE_INTERRUPT_FLAG;
-
-        instance->next_step = batch_call_in_and_dispose;
-        usb_log_debug("Batch(%p) INTERRUPT IN initialized.\n", instance);
-        batch_schedule(instance);
-}
-/*----------------------------------------------------------------------------*/
-void batch_interrupt_out(batch_t *instance)
-{
-        assert(instance);
-        memcpy(instance->transport_buffer, instance->buffer, instance->buffer_size);
-
-        const bool low_speed = instance->speed == USB_SPEED_LOW;
-        int toggle = 1;
-        size_t i = 0;
-        for (;i < instance->packets; ++i) {
-                char *data =
-                    instance->transport_buffer + (i  * instance->max_packet_size);
-                transfer_descriptor_t *next = (i + 1) < instance->packets ?
-                    &instance->tds[i + 1] : NULL;
-                toggle = 1 - toggle;
-
-                transfer_descriptor_init(&instance->tds[i], DEFAULT_ERROR_COUNT,
-                    instance->max_packet_size, toggle++, false, low_speed,
-                    instance->target, USB_PID_OUT, data, next);
-        }
-
-        instance->tds[i - 1].status |= TD_STATUS_COMPLETE_INTERRUPT_FLAG;
-
-        instance->next_step = batch_call_out_and_dispose;
-        usb_log_debug("Batch(%p) INTERRUPT OUT initialized.\n", instance);
-        batch_schedule(instance);
+                const size_t packet_size =
+                    (instance->max_packet_size > remain_size) ?
+                    remain_size : instance->max_packet_size;
+
+                transfer_descriptor_init(&instance->tds[packet],
+                    DEFAULT_ERROR_COUNT, packet_size, toggle, false, low_speed,
+                    instance->target, pid, data,
+                    &instance->tds[packet + 1]);
+
+                ++packet;
+                assert(packet <= instance->packets);
+                assert(packet_size <= remain_size);
+                remain_size -= packet_size;
+        }
+
+        instance->tds[packet - 1].status |= TD_STATUS_COMPLETE_INTERRUPT_FLAG;
+        instance->tds[packet - 1].next = 0 | LINK_POINTER_TERMINATE_FLAG;
 }
 /*----------------------------------------------------------------------------*/

uspace/drv/uhci-hcd/batch.h

@@ -86 +86 @@
 void batch_interrupt_out(batch_t *instance);
 
-/* DEPRECATED FUNCTIONS NEEDED BY THE OLD API */
-void batch_control_setup_old(batch_t *instance);
+void batch_bulk_in(batch_t *instance);
 
-void batch_control_write_data_old(batch_t *instance);
-
-void batch_control_read_data_old(batch_t *instance);
-
-void batch_control_write_status_old(batch_t *instance);
-
-void batch_control_read_status_old(batch_t *instance);
+void batch_bulk_out(batch_t *instance);
 #endif
 /**

uspace/drv/uhci-hcd/iface.c

@@ -140 +140 @@
 }
 /*----------------------------------------------------------------------------*/
+static int bulk_out(ddf_fun_t *fun, usb_target_t target,
+    size_t max_packet_size, void *data, size_t size,
+    usbhc_iface_transfer_out_callback_t callback, void *arg)
+{
+        assert(fun);
+        uhci_t *hc = fun_to_uhci(fun);
+        assert(hc);
+        usb_speed_t speed = device_keeper_speed(&hc->device_manager, target.address);
+
+        usb_log_debug("Bulk OUT %d:%d %zu(%zu).\n",
+            target.address, target.endpoint, size, max_packet_size);
+
+        batch_t *batch = batch_get(fun, target, USB_TRANSFER_BULK,
+            max_packet_size, speed, data, size, NULL, 0, NULL, callback, arg);
+        if (!batch)
+                return ENOMEM;
+        batch_bulk_out(batch);
+        return EOK;
+}
+/*----------------------------------------------------------------------------*/
+static int bulk_in(ddf_fun_t *fun, usb_target_t target,
+    size_t max_packet_size, void *data, size_t size,
+    usbhc_iface_transfer_in_callback_t callback, void *arg)
+{
+        assert(fun);
+        uhci_t *hc = fun_to_uhci(fun);
+        assert(hc);
+        usb_speed_t speed = device_keeper_speed(&hc->device_manager, target.address);
+        usb_log_debug("Bulk IN %d:%d %zu(%zu).\n",
+            target.address, target.endpoint, size, max_packet_size);
+
+        batch_t *batch = batch_get(fun, target, USB_TRANSFER_BULK,
+            max_packet_size, speed, data, size, NULL, 0, callback, NULL, arg);
+        if (!batch)
+                return ENOMEM;
+        batch_bulk_in(batch);
+        return EOK;
+}
+/*----------------------------------------------------------------------------*/
 static int control_write(ddf_fun_t *fun, usb_target_t target,
     size_t max_packet_size,
@@ -181 +220 @@
         return EOK;
 }
-
-
 /*----------------------------------------------------------------------------*/
 usbhc_iface_t uhci_iface = {
@@ -194 +231 @@
         .interrupt_in = interrupt_in,
 
+        .bulk_in = bulk_in,
+        .bulk_out = bulk_out,
+
         .control_read = control_read,
         .control_write = control_write,