Changeset 8820544 in mainline for uspace/srv/hid/input/port/ns16550.c

Timestamp:

2014-08-16T00:02:04Z (10 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

35b8bfe, 8cd680c

Parents:

83f29e0

Message:

support for kernel notification multiplexing in the async framework

• rename SYS_EVENT_* and SYS_IRQ_* syscalls to unify the terminology
• add SYS_IPC_EVENT_UNSUBSCRIBE
• remove IRQ handler multiplexing from DDF, the generic mechanism replaces it (unfortunatelly the order of arguments used by interrupt_handler_t needs to be permutated to align with the async framework conventions)

File:

• uspace/srv/hid/input/port/ns16550.c (modified) (4 diffs)

uspace/srv/hid/input/port/ns16550.c

@@ -107 +107 @@
 };
 
-static void ns16550_irq_handler(ipc_callid_t iid, ipc_call_t *call);
+static uintptr_t ns16550_physical;
+static kbd_dev_t *kbd_dev;
+static sysarg_t inr;
 
-static uintptr_t ns16550_physical;
-
-static kbd_dev_t *kbd_dev;
+static void ns16550_irq_handler(ipc_callid_t iid, ipc_call_t *call, void *arg)
+{
+        kbd_push_data(kbd_dev, IPC_GET_ARG2(*call));
+        
+        if (irc_service) {
+                async_exch_t *exch = async_exchange_begin(irc_sess);
+                async_msg_1(exch, IRC_CLEAR_INTERRUPT, inr);
+                async_exchange_end(exch);
+        }
+}
 
 static int ns16550_port_init(kbd_dev_t *kdev)
 {
-        void *vaddr;
-        
         kbd_dev = kdev;
         
@@ -128 +135 @@
                 return -1;
         
-        sysarg_t inr;
         if (sysinfo_get_value("kbd.inr", &inr) != EOK)
                 return -1;
@@ -136 +142 @@
         ns16550_kbd.cmds[3].addr = (void *) (ns16550_physical + RBR_REG);
         
-        async_set_interrupt_received(ns16550_irq_handler);
-        irq_register(inr, device_assign_devno(), inr, &ns16550_kbd);
+        async_irq_subscribe(inr, device_assign_devno(), ns16550_irq_handler, NULL,
+            &ns16550_kbd);
         
+        void *vaddr;
         return pio_enable((void *) ns16550_physical, 8, &vaddr);
 }
@@ -147 +154 @@
 }
 
-static void ns16550_irq_handler(ipc_callid_t iid, ipc_call_t *call)
-{
-        kbd_push_data(kbd_dev, IPC_GET_ARG2(*call));
-        
-        if (irc_service) {
-                async_exch_t *exch = async_exchange_begin(irc_sess);
-                async_msg_1(exch, IRC_CLEAR_INTERRUPT, IPC_GET_IMETHOD(*call));
-                async_exchange_end(exch);
-        }
-}
-
 /**
  * @}