Changeset cffa14e6 in mainline for uspace/drv/bus/usb/ohci/ohci.c

Timestamp:

2013-07-24T17:27:56Z (12 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

db71e2a

Parents:

c442f63

Message:

revert usb hc macro changes

File:

• uspace/drv/bus/usb/ohci/ohci.c (modified) (4 diffs)

uspace/drv/bus/usb/ohci/ohci.c

@@ -143 +143 @@
 int device_setup_ohci(ddf_dev_t *device)
 {
-        bool ih_registered = false;
-        bool hc_inited = false;
-        int rc;
-
         if (device == NULL)
                 return EBADMEM;
@@ -156 +152 @@
         }
 
+#define CHECK_RET_DEST_FREE_RETURN(ret, message...) \
+if (ret != EOK) { \
+        if (instance->hc_fun) { \
+                ddf_fun_destroy(instance->hc_fun); \
+        } \
+        if (instance->rh_fun) { \
+                ddf_fun_destroy(instance->rh_fun); \
+        } \
+        usb_log_error(message); \
+        return ret; \
+} else (void)0
+
         instance->hc_fun = ddf_fun_create(device, fun_exposed, "ohci_hc");
-        if (instance->hc_fun == NULL) {
-                usb_log_error("Failed to create OHCI HC function: %s.\n",
-                    str_error(ENOMEM));
-                rc = ENOMEM;
-                goto error;
-        }
-
+        int ret = instance->hc_fun ? EOK : ENOMEM;
+        CHECK_RET_DEST_FREE_RETURN(ret,
+            "Failed to create OHCI HC function: %s.\n", str_error(ret));
         ddf_fun_set_ops(instance->hc_fun, &hc_ops);
         ddf_fun_data_implant(instance->hc_fun, &instance->hc);
 
         instance->rh_fun = ddf_fun_create(device, fun_inner, "ohci_rh");
-        if (instance->rh_fun == NULL) {
-                usb_log_error("Failed to create OHCI RH function: %s.\n",
-                    str_error(ENOMEM));
-                rc = ENOMEM;
-                goto error;
-        }
-
+        ret = instance->rh_fun ? EOK : ENOMEM;
+        CHECK_RET_DEST_FREE_RETURN(ret,
+            "Failed to create OHCI RH function: %s.\n", str_error(ret));
         ddf_fun_set_ops(instance->rh_fun, &rh_ops);
 
@@ -181 +181 @@
         int irq = 0;
 
-        rc = get_my_registers(device, &reg_base, &reg_size, &irq);
-        if (rc != EOK) {
-                usb_log_error("Failed to get register memory addresses "
-                    "for %" PRIun ": %s.\n", ddf_dev_get_handle(device),
-                    str_error(rc));
-                goto error;
-        }
-
+        ret = get_my_registers(device, &reg_base, &reg_size, &irq);
+        CHECK_RET_DEST_FREE_RETURN(ret,
+            "Failed to get register memory addresses for %" PRIun ": %s.\n",
+            ddf_dev_get_handle(device), str_error(ret));
         usb_log_debug("Memory mapped regs at %p (size %zu), IRQ %d.\n",
             (void *) reg_base, reg_size, irq);
 
-        rc = hc_register_irq_handler(device, reg_base, reg_size, irq, irq_handler);
-        if (rc != EOK) {
-                usb_log_error("Failed to register interrupt handler: %s.\n",
-                    str_error(rc));
-                goto error;
-        }
-
-        ih_registered = true;
+        const size_t ranges_count = hc_irq_pio_range_count();
+        const size_t cmds_count = hc_irq_cmd_count();
+        irq_pio_range_t irq_ranges[ranges_count];
+        irq_cmd_t irq_cmds[cmds_count];
+        irq_code_t irq_code = {
+                .rangecount = ranges_count,
+                .ranges = irq_ranges,
+                .cmdcount = cmds_count,
+                .cmds = irq_cmds
+        };
+
+        ret = hc_get_irq_code(irq_ranges, sizeof(irq_ranges), irq_cmds,
+            sizeof(irq_cmds), reg_base, reg_size);
+        CHECK_RET_DEST_FREE_RETURN(ret,
+            "Failed to generate IRQ code: %s.\n", str_error(ret));
+
+
+        /* Register handler to avoid interrupt lockup */
+        ret = register_interrupt_handler(device, irq, irq_handler, &irq_code);
+        CHECK_RET_DEST_FREE_RETURN(ret,
+            "Failed to register interrupt handler: %s.\n", str_error(ret));
 
         /* Try to enable interrupts */
         bool interrupts = false;
-        rc = enable_interrupts(device);
-        if (rc != EOK) {
+        ret = enable_interrupts(device);
+        if (ret != EOK) {
                 usb_log_warning("Failed to enable interrupts: %s."
-                    " Falling back to polling\n", str_error(rc));
+                    " Falling back to polling\n", str_error(ret));
                 /* We don't need that handler */
                 unregister_interrupt_handler(device, irq);
-                ih_registered = false;
         } else {
                 usb_log_debug("Hw interrupts enabled.\n");
@@ -215 +223 @@
         }
 
-        rc = hc_init(&instance->hc, reg_base, reg_size, interrupts);
-        if (rc != EOK) {
-                usb_log_error("Failed to init ohci_hcd: %s.\n", str_error(rc));
-                goto error;
-        }
-
-        hc_inited = true;
-
-        rc = ddf_fun_bind(instance->hc_fun);
-        if (rc != EOK) {
-                usb_log_error("Failed to bind OHCI device function: %s.\n",
-                    str_error(rc));
-                goto error;
-        }
-
-        rc = ddf_fun_add_to_category(instance->hc_fun, USB_HC_CATEGORY);
-        if (rc != EOK) {
-                usb_log_error("Failed to add OHCI to HC category: %s.\n",
-                    str_error(rc));
-                goto error;
-        }
-
-        rc = hc_register_hub(&instance->hc, instance->rh_fun);
-        if (rc != EOK) {
-                usb_log_error("Failed to register OHCI root hub: %s.\n",
-                    str_error(rc));
-                goto error;
-        }
-
-        return EOK;
-
-error:
-        if (hc_inited)
-                hc_fini(&instance->hc);
-        if (ih_registered)
-                unregister_interrupt_handler(device, irq);
-        if (instance->hc_fun != NULL)
-                ddf_fun_destroy(instance->hc_fun);
-        if (instance->rh_fun != NULL)
-                ddf_fun_destroy(instance->rh_fun);
-        return rc;
+        ret = hc_init(&instance->hc, reg_base, reg_size, interrupts);
+        CHECK_RET_DEST_FREE_RETURN(ret,
+            "Failed to init ohci_hcd: %s.\n", str_error(ret));
+
+#define CHECK_RET_FINI_RETURN(ret, message...) \
+if (ret != EOK) { \
+        hc_fini(&instance->hc); \
+        unregister_interrupt_handler(device, irq); \
+        CHECK_RET_DEST_FREE_RETURN(ret, message); \
+} else (void)0
+
+
+        ret = ddf_fun_bind(instance->hc_fun);
+        CHECK_RET_FINI_RETURN(ret,
+            "Failed to bind OHCI device function: %s.\n", str_error(ret));
+
+        ret = ddf_fun_add_to_category(instance->hc_fun, USB_HC_CATEGORY);
+        CHECK_RET_FINI_RETURN(ret,
+            "Failed to add OHCI to HC class: %s.\n", str_error(ret));
+
+        ret = hc_register_hub(&instance->hc, instance->rh_fun);
+        CHECK_RET_FINI_RETURN(ret,
+            "Failed to register OHCI root hub: %s.\n", str_error(ret));
+        return ret;
+
+#undef CHECK_RET_FINI_RETURN
 }
 /**