Changeset c7dd69d in mainline for uspace/drv/uhci-hcd/hc.c

Timestamp:

2011-04-15T13:19:59Z (13 years ago)

Author:

Lubos Slovak <lubos.slovak@…>

Branches:

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

Children:

da1dd48

Parents:

e3b5129 (diff), 8fd4ba0 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Development changes

File:

• uspace/drv/uhci-hcd/hc.c (modified) (13 diffs)

uspace/drv/uhci-hcd/hc.c

@@ -66 +66 @@
 static int hc_interrupt_emulator(void *arg);
 static int hc_debug_checker(void *arg);
-#if 0
-static bool usb_is_allowed(
-    bool low_speed, usb_transfer_type_t transfer, size_t size);
-#endif
 /*----------------------------------------------------------------------------*/
 /** Initialize UHCI hcd driver structure
@@ -89 +85 @@
         int ret;
 
-#define CHECK_RET_DEST_FUN_RETURN(ret, message...) \
+#define CHECK_RET_RETURN(ret, message...) \
         if (ret != EOK) { \
                 usb_log_error(message); \
-                if (instance->ddf_instance) \
-                        ddf_fun_destroy(instance->ddf_instance); \
                 return ret; \
         } else (void) 0
@@ -99 +93 @@
         instance->hw_interrupts = interrupts;
         instance->hw_failures = 0;
-
-        /* Setup UHCI function. */
-        instance->ddf_instance = fun;
 
         /* allow access to hc control registers */
         regs_t *io;
         ret = pio_enable(regs, reg_size, (void**)&io);
-        CHECK_RET_DEST_FUN_RETURN(ret,
+        CHECK_RET_RETURN(ret,
             "Failed(%d) to gain access to registers at %p: %s.\n",
-            ret, str_error(ret), io);
+            ret, io, str_error(ret));
         instance->registers = io;
         usb_log_debug("Device registers at %p(%u) accessible.\n",
@@ -114 +105 @@
 
         ret = hc_init_mem_structures(instance);
-        CHECK_RET_DEST_FUN_RETURN(ret,
-            "Failed to initialize UHCI memory structures.\n");
+        CHECK_RET_RETURN(ret,
+            "Failed(%d) to initialize UHCI memory structures: %s.\n",
+            ret, str_error(ret));
 
         hc_init_hw(instance);
         if (!interrupts) {
-                instance->cleaner =
+                instance->interrupt_emulator =
                     fibril_create(hc_interrupt_emulator, instance);
-                fibril_add_ready(instance->cleaner);
-        } else {
-                /* TODO: enable interrupts here */
-        }
-
-        instance->debug_checker =
-            fibril_create(hc_debug_checker, instance);
-//      fibril_add_ready(instance->debug_checker);
+                fibril_add_ready(instance->interrupt_emulator);
+        }
+        (void)hc_debug_checker;
 
         return EOK;
@@ -228 +215 @@
         /* Set all frames to point to the first queue head */
         const uint32_t queue =
-          instance->transfers_interrupt.queue_head_pa
-          | LINK_POINTER_QUEUE_HEAD_FLAG;
+            LINK_POINTER_QH(addr_to_phys(
+                instance->transfers_interrupt.queue_head));
 
         unsigned i = 0;
@@ -236 +223 @@
         }
 
-        /* Init device keeper*/
+        /* Init device keeper */
         usb_device_keeper_init(&instance->manager);
         usb_log_debug("Initialized device manager.\n");
@@ -260 +247 @@
 {
         assert(instance);
-#define CHECK_RET_CLEAR_RETURN(ret, message...) \
+#define SETUP_TRANSFER_LIST(type, name) \
+do { \
+        int ret = transfer_list_init(&instance->transfers_##type, name); \
         if (ret != EOK) { \
-                usb_log_error(message); \
+                usb_log_error("Failed(%d) to setup %s transfer list: %s.\n", \
+                    ret, name, str_error(ret)); \
                 transfer_list_fini(&instance->transfers_bulk_full); \
                 transfer_list_fini(&instance->transfers_control_full); \
@@ -268 +258 @@
                 transfer_list_fini(&instance->transfers_interrupt); \
                 return ret; \
-        } else (void) 0
-
-        /* initialize TODO: check errors */
-        int ret;
-        ret = transfer_list_init(&instance->transfers_bulk_full, "BULK_FULL");
-        CHECK_RET_CLEAR_RETURN(ret, "Failed to init BULK list.");
-
-        ret = transfer_list_init(
-            &instance->transfers_control_full, "CONTROL_FULL");
-        CHECK_RET_CLEAR_RETURN(ret, "Failed to init CONTROL FULL list.");
-
-        ret = transfer_list_init(
-            &instance->transfers_control_slow, "CONTROL_SLOW");
-        CHECK_RET_CLEAR_RETURN(ret, "Failed to init CONTROL SLOW list.");
-
-        ret = transfer_list_init(&instance->transfers_interrupt, "INTERRUPT");
-        CHECK_RET_CLEAR_RETURN(ret, "Failed to init INTERRUPT list.");
-
+        } \
+} while (0)
+
+        SETUP_TRANSFER_LIST(bulk_full, "BULK FULL");
+        SETUP_TRANSFER_LIST(control_full, "CONTROL FULL");
+        SETUP_TRANSFER_LIST(control_slow, "CONTROL LOW");
+        SETUP_TRANSFER_LIST(interrupt, "INTERRUPT");
+#undef SETUP_TRANSFER_LIST
+        /* Connect lists into one schedule */
         transfer_list_set_next(&instance->transfers_control_full,
                 &instance->transfers_bulk_full);
@@ -329 +310 @@
 
         transfer_list_t *list =
-            instance->transfers[batch->speed][batch->transfer_type];
+            instance->transfers[batch->ep->speed][batch->ep->transfer_type];
         assert(list);
         transfer_list_add_batch(list, batch);
@@ -350 +331 @@
         assert(instance);
 //      status |= 1; //Uncomment to work around qemu hang
-        /* TODO: Resume interrupts are not supported */
         /* Lower 2 bits are transaction error and transaction complete */
-        if (status & 0x3) {
+        if (status & (UHCI_STATUS_INTERRUPT | UHCI_STATUS_ERROR_INTERRUPT)) {
                 LIST_INITIALIZE(done);
                 transfer_list_remove_finished(
@@ -371 +351 @@
                 }
         }
-        /* bits 4 and 5 indicate hc error */
-        if (status & 0x18) {
+        /* Resume interrupts are not supported */
+
+        /* Bits 4 and 5 indicate hc error */
+        if (status & (UHCI_STATUS_PROCESS_ERROR | UHCI_STATUS_SYSTEM_ERROR)) {
                 usb_log_error("UHCI hardware failure!.\n");
                 ++instance->hw_failures;
@@ -402 +384 @@
 
         while (1) {
-                /* read and ack interrupts */
+                /* Readd and clear status register */
                 uint16_t status = pio_read_16(&instance->registers->usbsts);
-                pio_write_16(&instance->registers->usbsts, 0x1f);
+                pio_write_16(&instance->registers->usbsts, status);
                 if (status != 0)
                         usb_log_debug2("UHCI status: %x.\n", status);
                 hc_interrupt(instance, status);
-                async_usleep(UHCI_CLEANER_TIMEOUT);
+                async_usleep(UHCI_INT_EMULATOR_TIMEOUT);
         }
         return EOK;
@@ -479 +461 @@
 #undef QH
 }
-/*----------------------------------------------------------------------------*/
-/** Check transfers for USB validity
- *
- * @param[in] low_speed Transfer speed.
- * @param[in] transfer Transer type
- * @param[in] size Size of data packets
- * @return True if transaction is allowed by USB specs, false otherwise
- */
-#if 0
-bool usb_is_allowed(
-    bool low_speed, usb_transfer_type_t transfer, size_t size)
-{
-        /* see USB specification chapter 5.5-5.8 for magic numbers used here */
-        switch(transfer)
-        {
-        case USB_TRANSFER_ISOCHRONOUS:
-                return (!low_speed && size < 1024);
-        case USB_TRANSFER_INTERRUPT:
-                return size <= (low_speed ? 8 : 64);
-        case USB_TRANSFER_CONTROL: /* device specifies its own max size */
-                return (size <= (low_speed ? 8 : 64));
-        case USB_TRANSFER_BULK: /* device specifies its own max size */
-                return (!low_speed && size <= 64);
-        }
-        return false;
-}
-#endif
 /**
  * @}