Changes in uspace/drv/uhci-rhd/port.c [87157982:1ae51ae] in mainline

File:

• uspace/drv/uhci-rhd/port.c (modified) (8 diffs)

uspace/drv/uhci-rhd/port.c

@@ -34 +34 @@
 #include <errno.h>
 #include <str_error.h>
+#include <fibril_synch.h>
 
 #include <usb/usb.h>    /* usb_address_t */
@@ -45 +46 @@
 #include "port_status.h"
 
-static int uhci_port_new_device(uhci_port_t *port);
+static int uhci_port_new_device(uhci_port_t *port, uint16_t status);
 static int uhci_port_remove_device(uhci_port_t *port);
 static int uhci_port_set_enabled(uhci_port_t *port, bool enabled);
 static int uhci_port_check(void *port);
+static int new_device_enable_port(int portno, void *arg);
 
 int uhci_port_init(
   uhci_port_t *port, port_status_t *address, unsigned number,
-  unsigned usec, ddf_dev_t *rh, int parent_phone)
+  unsigned usec, ddf_dev_t *rh)
 {
         assert(port);
@@ -90 +92 @@
         uhci_port_t *port_instance = port;
         assert(port_instance);
+        port_status_write(port_instance->address, 0);
+
+        uint64_t count = 0;
 
         while (1) {
+                async_usleep(port_instance->wait_period_usec);
+
                 /* read register value */
                 port_status_t port_status =
@@ -97 +104 @@
 
                 /* debug print */
-                usb_log_debug("Port %d status at %p: 0x%04x.\n",
-                  port_instance->number, port_instance->address, port_status);
-                print_port_status(port_status);
-
-                if (port_status & STATUS_CONNECTED_CHANGED) {
+                static fibril_mutex_t dbg_mtx = FIBRIL_MUTEX_INITIALIZER(dbg_mtx);
+                fibril_mutex_lock(&dbg_mtx);
+                usb_log_debug("Port %d status at %p: 0x%04x. === %llu\n",
+                  port_instance->number, port_instance->address, port_status, count++);
+//              print_port_status(port_status);
+                fibril_mutex_unlock(&dbg_mtx);
+
+                if ((port_status & STATUS_CONNECTED_CHANGED) != 0) {
+                        usb_log_debug("Change detected on port %d: %x.\n",
+                            port_instance->number, port_status);
+
+
                         int rc = usb_hc_connection_open(
                             &port_instance->hc_connection);
                         if (rc != EOK) {
                                 usb_log_error("Failed to connect to HC.");
-                                goto next;
-                        }
-
-                        if (port_status & STATUS_CONNECTED) {
+                                continue;
+                        }
+
+                        /* remove any old device */
+                        if (port_instance->attached_device) {
+                                usb_log_debug("Removing device on port %d.\n",
+                                    port_instance->number);
+                                uhci_port_remove_device(port_instance);
+                        }
+
+                        if ((port_status & STATUS_CONNECTED) != 0) {
                                 /* new device */
-                                uhci_port_new_device(port_instance);
+                                uhci_port_new_device(port_instance, port_status);
                         } else {
-                                uhci_port_remove_device(port_instance);
+                                /* ack changes by writing one to WC bits */
+                                port_status_write(port_instance->address, port_status);
+                                usb_log_debug("Change status ack on port %d.\n",
+                                                port_instance->number);
                         }
 
@@ -120 +144 @@
                         if (rc != EOK) {
                                 usb_log_error("Failed to disconnect from HC.");
-                                goto next;
                         }
                 }
-        next:
-                async_usleep(port_instance->wait_period_usec);
         }
         return EOK;
@@ -147 +168 @@
         async_usleep(100000);
 
-        /* Enable the port. */
-        uhci_port_set_enabled(port, true);
 
         /* The hub maintains the reset signal to that port for 10 ms
@@ -169 +188 @@
         }
 
-        return EOK;
-}
-
-/*----------------------------------------------------------------------------*/
-static int uhci_port_new_device(uhci_port_t *port)
+        /* Enable the port. */
+        uhci_port_set_enabled(port, true);
+
+        return EOK;
+}
+
+/*----------------------------------------------------------------------------*/
+static int uhci_port_new_device(uhci_port_t *port, uint16_t status)
 {
         assert(port);
@@ -182 +204 @@
         usb_address_t dev_addr;
         int rc = usb_hc_new_device_wrapper(port->rh, &port->hc_connection,
-            USB_SPEED_FULL,
+            ((status & STATUS_LOW_SPEED) != 0) ? USB_SPEED_LOW : USB_SPEED_FULL,
             new_device_enable_port, port->number, port,
             &dev_addr, &port->attached_device, NULL, NULL, NULL);
+
         if (rc != EOK) {
                 usb_log_error("Failed adding new device on port %u: %s.\n",