Changeset 876f6463 in mainline

Timestamp:

2012-01-24T15:46:56Z (12 years ago)

Author:

Martin Decky <martin@…>

Branches:

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

Children:

02aad10, 60db852

Parents:

2df6f6fe

Message:

always (always, always!) wait for the controller to be ready before sending any data to it
otherwise the i8042 breaks on real hardware, rendering the keyboard and mouse useless
this fixes #409

File:

• uspace/drv/char/i8042/i8042.c (modified) (1 diff)

uspace/drv/char/i8042/i8042.c

@@ -307 +307 @@
         
         for (size_t i = 0; i < size; ++i) {
-                wait_ready(controller);
-                
-                if (controller->aux_fun == fun)
+                if (controller->aux_fun == fun) {
+                        wait_ready(controller);
                         pio_write_8(&controller->regs->status,
                             i8042_CMD_WRITE_AUX);
+                }
                 
+                wait_ready(controller);
                 pio_write_8(&controller->regs->data, buffer[i]);
         }