WebSVN – HelenOS – Diff – /trunk/kernel/arch/sparc64/src/drivers/sgcn.c

 /** SGCN output device operations */
 static outdev_operations_t sgcnout_ops = {
     .write = sgcn_putchar
 };
-/** SGCN input device operations */
-static indev_operations_t sgcnin_ops = {
-    .poll = NULL
-};
-static indev_t sgcnin;      /**< SGCN input device. */
 static outdev_t sgcnout;    /**< SGCN output device. */
 /**
  * Set some sysinfo values (SRAM address and SRAM size).
  */
 /**
  * Function regularly called by the keyboard polling thread. Finds out whether
  * there are some unread characters in the input queue. If so, it picks them up
  * and sends them to the upper layers of HelenOS.
  */
-static void sgcn_poll()
+static void sgcn_poll(sgcn_instance_t *instance)
+{
     uint32_t begin = SGCN_BUFFER_HEADER->in_begin;
     uint32_t end = SGCN_BUFFER_HEADER->in_end;
     uint32_t size = end - begin;
         SGCN_BUFFER(char, SGCN_BUFFER_HEADER->in_rdptr);
     volatile uint32_t *in_wrptr_ptr = &(SGCN_BUFFER_HEADER->in_wrptr);
     volatile uint32_t *in_rdptr_ptr = &(SGCN_BUFFER_HEADER->in_rdptr);
     while (*in_rdptr_ptr != *in_wrptr_ptr) {
         buf_ptr = (volatile char *)
             SGCN_BUFFER(char, SGCN_BUFFER_HEADER->in_rdptr);
         char c = *buf_ptr;
         *in_rdptr_ptr = (((*in_rdptr_ptr) - begin + 1) % size) + begin;
-        indev_push_character(&sgcnin, c);
+        indev_push_character(instance->srlnin, c);
+    }
     spinlock_unlock(&sgcn_input_lock);
+}
 /**
  * Polling thread function.
  */
-static void kkbdpoll(void *arg) {
+static void ksgcnpoll(void *instance) {
     while (1) {
-        if (!silent) {
+        if (!silent)
-            sgcn_poll();
+            sgcn_poll(instance);
-        }
         thread_usleep(POLL_INTERVAL);
+    }
+}
 /**
  * A public function which initializes input from the Serengeti console.
  */
-indev_t *sgcnin_init(void)
+sgcn_instance_t *sgcnin_init(void)
+{
     sgcn_buffer_begin_init();
+    sgcn_instance_t *instance =
-    sysinfo_set_item_val("kbd", NULL, true);
+        malloc(sizeof(sgcn_instance_t), FRAME_ATOMIC);
+    if (!instance)
+        return NULL;
+    instance->srlnin = NULL;
-    thread_t *t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
+    instance->thread = thread_create(ksgcnpoll, instance, TASK, 0,
+        "ksgcnpoll", true);
-    if (!t)
+    if (!instance->thread) {
-        panic("Cannot create kkbdpoll.");
+        free(instance);
-    thread_ready(t);
+        return NULL;
+    }
+    return instance;
+}
-    indev_initialize("sgcnin", &sgcnin, &sgcnin_ops);
+void sgcnin_wire(sgcn_instance_t *instance, indev_t *srlnin)
+{
+    ASSERT(instance);
+    ASSERT(srlnin);
-    return &sgcnin;
+    instance->srlnin = srlnin;
+    thread_ready(instance->thread);
+    sysinfo_set_item_val("kbd", NULL, true);
+}
 /**
  * A public function which initializes output to the Serengeti console.
  */

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/sparc64/src/drivers/sgcn.c – Rev 4311 → 4313