Changes in uspace/drv/char/i8042/main.c [267f235:ca4730a5] in mainline

File:

• uspace/drv/char/i8042/main.c (modified) (4 diffs)

uspace/drv/char/i8042/main.c

@@ -36 +36 @@
 
 #include <libarch/inttypes.h>
+#include <libarch/config.h>
 #include <ddf/driver.h>
 #include <device/hw_res_parsed.h>
@@ -42 +43 @@
 #include <ddf/log.h>
 #include <stdio.h>
+#include <async.h>
 #include "i8042.h"
-
-#define CHECK_RET_RETURN(ret, message...) \
-        do { \
-                if (ret != EOK) { \
-                        ddf_msg(LVL_ERROR, message); \
-                        return ret; \
-                } \
-        } while (0)
 
 /** Get address of I/O registers.
@@ -110 +104 @@
 static int i8042_dev_add(ddf_dev_t *device)
 {
-        if (!device)
-                return EINVAL;
-        
         uintptr_t io_regs = 0;
         size_t io_size = 0;
         int kbd = 0;
         int mouse = 0;
+        int rc;
         
-        int ret = get_my_registers(device, &io_regs, &io_size, &kbd, &mouse);
-        CHECK_RET_RETURN(ret, "Failed to get registers: %s.",
-            str_error(ret));
+        if (!device)
+                return EINVAL;
+        
+        rc = get_my_registers(device, &io_regs, &io_size, &kbd, &mouse);
+        if (rc != EOK) {
+                ddf_msg(LVL_ERROR, "Failed to get registers: %s.",
+                    str_error(rc));
+                return rc;
+        }
+        
         ddf_msg(LVL_DEBUG, "I/O regs at %p (size %zuB), IRQ kbd %d, IRQ mouse %d.",
             (void *) io_regs, io_size, kbd, mouse);
         
         i8042_t *i8042 = ddf_dev_data_alloc(device, sizeof(i8042_t));
-        ret = (i8042 == NULL) ? ENOMEM : EOK;
-        CHECK_RET_RETURN(ret, "Failed to allocate i8042 driver instance.");
+        if (i8042 == NULL) {
+                ddf_msg(LVL_ERROR, "Out of memory.");
+                return ENOMEM;
+        }
         
-        ret = i8042_init(i8042, (void *) io_regs, io_size, kbd, mouse, device);
-        CHECK_RET_RETURN(ret, "Failed to initialize i8042 driver: %s.",
-            str_error(ret));
+        rc = i8042_init(i8042, (void *) io_regs, io_size, kbd, mouse, device);
+        if (rc != EOK) {
+                ddf_msg(LVL_ERROR, "Failed to initialize i8042 driver: %s.",
+                    str_error(rc));
+                return rc;
+        }
         
         ddf_msg(LVL_NOTE, "Controlling '%s' (%" PRIun ").",
@@ -152 +156 @@
         printf("%s: HelenOS PS/2 driver.\n", NAME);
         ddf_log_init(NAME);
+        
+        /*
+         * Alleviate the virtual memory / page table pressure caused by 
+         * interrupt storms when the default large stacks are used.
+         */
+        async_set_interrupt_handler_stack_size(PAGE_SIZE);
+
         return ddf_driver_main(&i8042_driver);
 }