Changes in uspace/drv/ohci/utils/malloc32.h [23f40280:fd153d3] in mainline

File:

• uspace/drv/ohci/utils/malloc32.h (modified) (4 diffs)

uspace/drv/ohci/utils/malloc32.h

@@ -26 +26 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-/** @addtogroup drvusbohci
+/** @addtogroup usb
  * @{
  */
 /** @file
- * @brief OHCI driver
+ * @brief UHCI driver
  */
-#ifndef DRV_OHCI_UTILS_MALLOC32_H
-#define DRV_OHCI_UTILS_MALLOC32_H
+#ifndef DRV_UHCI_TRANSLATOR_H
+#define DRV_UHCI_TRANSLATOR_H
 
 #include <assert.h>
@@ -40 +40 @@
 #include <mem.h>
 #include <as.h>
+
+#define UHCI_REQUIRED_PAGE_SIZE 4096
 
 /** Get physical address translation
@@ -59 +61 @@
  *
  * @param[in] size Size of the required memory space
- * @return Address of the aligned and big enough memory place, NULL on failure.
+ * @return Address of the alligned and big enough memory place, NULL on failure.
  */
 static inline void * malloc32(size_t size)
@@ -70 +72 @@
 static inline void free32(void *addr)
         { if (addr) free(addr); }
+/*----------------------------------------------------------------------------*/
+/** Create 4KB page mapping
+ *
+ * @return Address of the mapped page, NULL on failure.
+ */
+static inline void * get_page(void)
+{
+        void * free_address = as_get_mappable_page(UHCI_REQUIRED_PAGE_SIZE);
+        assert(free_address);
+        if (free_address == 0)
+                return NULL;
+        void* ret =
+          as_area_create(free_address, UHCI_REQUIRED_PAGE_SIZE,
+                  AS_AREA_READ | AS_AREA_WRITE);
+        if (ret != free_address)
+                return NULL;
+        return ret;
+}
+
 #endif
 /**