Changeset 253d3d0 in mainline for kernel/arch/sparc64/src/drivers/sgcn.c

Timestamp:

2009-04-21T19:52:32Z (15 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

5646813

Parents:

f2d2c7ba

Message:

Convert sgcn to the new HID wiring mechanism.

File:

• kernel/arch/sparc64/src/drivers/sgcn.c (modified) (6 diffs)

kernel/arch/sparc64/src/drivers/sgcn.c

@@ -135 +135 @@
 };
 
-/** 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. */
 
@@ -302 +296 @@
  * 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;
@@ -320 +314 @@
         
         while (*in_rdptr_ptr != *in_wrptr_ptr) {
-                
                 buf_ptr = (volatile char *)
                     SGCN_BUFFER(char, SGCN_BUFFER_HEADER->in_rdptr);
@@ -326 +319 @@
                 *in_rdptr_ptr = (((*in_rdptr_ptr) - begin + 1) % size) + begin;
                         
-                indev_push_character(&sgcnin, c);       
+                indev_push_character(instance->srlnin, c);      
         }       
 
@@ -335 +328 @@
  * Polling thread function.
  */
-static void kkbdpoll(void *arg) {
+static void ksgcnpoll(void *instance) {
         while (1) {
-                if (!silent) {
-                        sgcn_poll();
-                }
+                if (!silent) 
+                        sgcn_poll(instance);
                 thread_usleep(POLL_INTERVAL);
         }
@@ -347 +339 @@
  * 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 =
+            malloc(sizeof(sgcn_instance_t), FRAME_ATOMIC);
+        if (!instance)
+                return NULL;
+
+        instance->srlnin = NULL;
+        instance->thread = thread_create(ksgcnpoll, instance, TASK, 0,
+            "ksgcnpoll", true);
+        if (!instance->thread) {
+                free(instance);
+                return NULL;
+        }
+        
+        return instance;
+}
+
+void sgcnin_wire(sgcn_instance_t *instance, indev_t *srlnin)
+{
+        ASSERT(instance);
+        ASSERT(srlnin);
+
+        instance->srlnin = srlnin;
+        thread_ready(instance->thread);
+
         sysinfo_set_item_val("kbd", NULL, true);
-
-        thread_t *t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
-        if (!t)
-                panic("Cannot create kkbdpoll.");
-        thread_ready(t);
-        
-        indev_initialize("sgcnin", &sgcnin, &sgcnin_ops);
-
-        return &sgcnin;
 }