Changeset d2bff2f in mainline for uspace/drv/uhci-hcd/uhci.c

Timestamp:

2011-05-07T15:41:47Z (13 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

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

Children:

76ef94e

Parents:

dc5f2fb

Message:

UHCI refactoring

File:

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

uspace/drv/uhci-hcd/uhci.c

@@ -44 +44 @@
 #include "pci.h"
 
+#include "hc.h"
+#include "root_hub.h"
+
+/** Structure representing both functions of UHCI hc, USB host controller
+ * and USB root hub */
+typedef struct uhci {
+        /** Pointer to DDF represenation of UHCI host controller */
+        ddf_fun_t *hc_fun;
+        /** Pointer to DDF represenation of UHCI root hub */
+        ddf_fun_t *rh_fun;
+
+        /** Internal driver's represenation of UHCI host controller */
+        hc_t hc;
+        /** Internal driver's represenation of UHCI root hub */
+        rh_t rh;
+} uhci_t;
+
+static inline uhci_t * dev_to_uhci(ddf_dev_t *dev)
+{
+        assert(dev);
+        assert(dev->driver_data);
+        return dev->driver_data;
+}
+/*----------------------------------------------------------------------------*/
 /** IRQ handling callback, forward status from call to diver structure.
  *
@@ -69 +93 @@
 {
         assert(fun);
-        usb_device_keeper_t *manager =
-            &((uhci_t*)fun->dev->driver_data)->hc.manager;
-
+        usb_device_keeper_t *manager = &dev_to_uhci(fun->dev)->hc.manager;
         usb_address_t addr = usb_device_keeper_find(manager, handle);
+
         if (addr < 0) {
                 return addr;
@@ -93 +116 @@
     ddf_fun_t *fun, devman_handle_t *handle)
 {
-        assert(handle);
-        ddf_fun_t *hc_fun = ((uhci_t*)fun->dev->driver_data)->hc_fun;
-        assert(hc_fun != NULL);
-
-        *handle = hc_fun->handle;
+        assert(fun);
+        ddf_fun_t *hc_fun = dev_to_uhci(fun->dev)->hc_fun;
+        assert(hc_fun);
+
+        if (handle != NULL)
+                *handle = hc_fun->handle;
         return EOK;
 }
@@ -126 +150 @@
 static hw_res_ops_t hw_res_iface = {
         .get_resource_list = get_resource_list,
-        .enable_interrupt = NULL
+        .enable_interrupt = NULL,
 };
 /*----------------------------------------------------------------------------*/
@@ -146 +170 @@
  *  - registers interrupt handler
  */
-int uhci_init(uhci_t *instance, ddf_dev_t *device)
-{
-        assert(instance);
-        instance->hc_fun = NULL;
+int device_setup_uhci(ddf_dev_t *device)
+{
+        assert(device);
+        uhci_t *instance = malloc(sizeof(uhci_t));
+        if (instance == NULL) {
+                usb_log_error("Failed to allocate OHCI driver.\n");
+                return ENOMEM;
+        }
+
+#define CHECK_RET_DEST_FREE_RETURN(ret, message...) \
+if (ret != EOK) { \
+        if (instance->hc_fun) \
+                instance->hc_fun->ops = NULL; \
+                instance->hc_fun->driver_data = NULL; \
+                ddf_fun_destroy(instance->hc_fun); \
+        if (instance->rh_fun) {\
+                instance->rh_fun->ops = NULL; \
+                instance->rh_fun->driver_data = NULL; \
+                ddf_fun_destroy(instance->rh_fun); \
+        } \
+        free(instance); \
+        usb_log_error(message); \
+        return ret; \
+} else (void)0
+
         instance->rh_fun = NULL;
-#define CHECK_RET_DEST_FUN_RETURN(ret, message...) \
-if (ret != EOK) { \
-        usb_log_error(message); \
-        if (instance->hc_fun) \
-                ddf_fun_destroy(instance->hc_fun); \
-        if (instance->rh_fun) \
-                ddf_fun_destroy(instance->rh_fun); \
-        return ret; \
-}
-
-        uintptr_t io_reg_base = 0;
-        size_t io_reg_size = 0;
+        instance->hc_fun = ddf_fun_create(device, fun_exposed, "uhci-hc");
+        int ret = (instance->hc_fun == NULL) ? ENOMEM : EOK;
+        CHECK_RET_DEST_FREE_RETURN(ret, "Failed to create UHCI HC function.\n");
+        instance->hc_fun->ops = &hc_ops;
+        instance->hc_fun->driver_data = &instance->hc;
+
+        instance->rh_fun = ddf_fun_create(device, fun_inner, "uhci-rh");
+        ret = (instance->rh_fun == NULL) ? ENOMEM : EOK;
+        CHECK_RET_DEST_FREE_RETURN(ret, "Failed to create UHCI RH function.\n");
+        instance->rh_fun->ops = &rh_ops;
+        instance->rh_fun->driver_data = &instance->rh;
+
+        uintptr_t reg_base = 0;
+        size_t reg_size = 0;
         int irq = 0;
 
-        int ret =
-            pci_get_my_registers(device, &io_reg_base, &io_reg_size, &irq);
-        CHECK_RET_DEST_FUN_RETURN(ret,
+        ret = pci_get_my_registers(device, &reg_base, &reg_size, &irq);
+        CHECK_RET_DEST_FREE_RETURN(ret,
             "Failed to get I/O addresses for %" PRIun ": %s.\n",
             device->handle, str_error(ret));
         usb_log_debug("I/O regs at 0x%p (size %zu), IRQ %d.\n",
-            (void *) io_reg_base, io_reg_size, irq);
+            (void *) reg_base, reg_size, irq);
 
         ret = pci_disable_legacy(device);
-        CHECK_RET_DEST_FUN_RETURN(ret,
+        CHECK_RET_DEST_FREE_RETURN(ret,
             "Failed(%d) to disable legacy USB: %s.\n", ret, str_error(ret));
 
@@ -194 +240 @@
 #endif
 
-        instance->hc_fun = ddf_fun_create(device, fun_exposed, "uhci-hc");
-        ret = (instance->hc_fun == NULL) ? ENOMEM : EOK;
-        CHECK_RET_DEST_FUN_RETURN(ret,
-            "Failed(%d) to create HC function: %s.\n", ret, str_error(ret));
-
-        ret = hc_init(&instance->hc, instance->hc_fun,
-            (void*)io_reg_base, io_reg_size, interrupts);
-        CHECK_RET_DEST_FUN_RETURN(ret,
+
+        ret = hc_init(&instance->hc, (void*)reg_base, reg_size, interrupts);
+        CHECK_RET_DEST_FREE_RETURN(ret,
             "Failed(%d) to init uhci-hcd: %s.\n", ret, str_error(ret));
-
-        instance->hc_fun->ops = &hc_ops;
-        instance->hc_fun->driver_data = &instance->hc;
-        ret = ddf_fun_bind(instance->hc_fun);
-        CHECK_RET_DEST_FUN_RETURN(ret,
-            "Failed(%d) to bind UHCI device function: %s.\n",
-            ret, str_error(ret));
-#undef CHECK_RET_HC_RETURN
 
 #define CHECK_RET_FINI_RETURN(ret, message...) \
 if (ret != EOK) { \
-        usb_log_error(message); \
-        if (instance->hc_fun) \
-                ddf_fun_destroy(instance->hc_fun); \
-        if (instance->rh_fun) \
-                ddf_fun_destroy(instance->rh_fun); \
         hc_fini(&instance->hc); \
+        CHECK_RET_DEST_FREE_RETURN(ret, message); \
         return ret; \
-}
+} else (void)0
 
         /* It does no harm if we register this on polling */
@@ -230 +259 @@
             ret, str_error(ret));
 
-        instance->rh_fun = ddf_fun_create(device, fun_inner, "uhci-rh");
-        ret = (instance->rh_fun == NULL) ? ENOMEM : EOK;
-        CHECK_RET_FINI_RETURN(ret,
-            "Failed(%d) to create root hub function: %s.\n",
+        ret = ddf_fun_bind(instance->hc_fun);
+        CHECK_RET_FINI_RETURN(ret,
+            "Failed(%d) to bind UHCI device function: %s.\n",
             ret, str_error(ret));
 
@@ -241 +269 @@
             "Failed(%d) to setup UHCI root hub: %s.\n", ret, str_error(ret));
 
-        instance->rh_fun->ops = &rh_ops;
-        instance->rh_fun->driver_data = &instance->rh;
         ret = ddf_fun_bind(instance->rh_fun);
         CHECK_RET_FINI_RETURN(ret,
             "Failed(%d) to register UHCI root hub: %s.\n", ret, str_error(ret));
 
+        device->driver_data = instance;
         return EOK;
 #undef CHECK_RET_FINI_RETURN