Changeset b5ba8f6 in mainline for uspace/lib/c/generic/ddi.c

Timestamp:

2013-09-13T13:11:53Z (11 years ago)

Author:

Maurizio Lombardi <m.lombardi85@…>

Branches:

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

Children:

1eaa3cf

Parents:

95027b5 (diff), 1c5f6f8 (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:

merge mainline changes

File:

• uspace/lib/c/generic/ddi.c (modified) (2 diffs)

uspace/lib/c/generic/ddi.c

@@ -42 +42 @@
 #include <ddi.h>
 #include <libarch/ddi.h>
+#include <device/hw_res.h>
+#include <device/hw_res_parsed.h>
+#include <device/pio_window.h>
 #include <libc.h>
 #include <task.h>
@@ -134 +137 @@
         
         return __SYSCALL1(SYS_IOSPACE_ENABLE, (sysarg_t) &arg);
+}
+
+/** Enable PIO for specified address range.
+ *
+ * @param range I/O range to be enable.
+ * @param virt  Virtual address for application's PIO operations. 
+ */
+int pio_enable_range(addr_range_t *range, void **virt)
+{
+        return pio_enable(RNGABSPTR(*range), RNGSZ(*range), virt);
+}
+
+/** Enable PIO for specified HW resource wrt. to the PIO window.
+ *
+ * @param win      PIO window. May be NULL if the resources are known to be
+ *                 absolute.
+ * @param res      Resources specifying the I/O range wrt. to the PIO window.
+ * @param virt     Virtual address for application's PIO operations.
+ *
+ * @return EOK on success.
+ * @return Negative error code on failure.
+ *
+ */
+int pio_enable_resource(pio_window_t *win, hw_resource_t *res, void **virt)
+{
+        uintptr_t addr;
+        size_t size;
+
+        switch (res->type) {
+        case IO_RANGE:
+                addr = res->res.io_range.address;
+                if (res->res.io_range.relative) {
+                        if (!win)
+                                return EINVAL;
+                        addr += win->io.base;
+                }
+                size = res->res.io_range.size;
+                break;
+        case MEM_RANGE:
+                addr = res->res.mem_range.address;
+                if (res->res.mem_range.relative) {
+                        if (!win)
+                                return EINVAL;
+                        addr += win->mem.base;
+                }
+                size = res->res.mem_range.size;
+                break;
+        default:
+                return EINVAL;
+        }
+
+        return pio_enable((void *) addr, size, virt);   
 }