Changes in uspace/drv/char/i8042/main.c [267f235:8820544] in mainline

File:

• uspace/drv/char/i8042/main.c (modified) (6 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.
  *
  * @param[in]  dev            Device asking for the addresses.
- * @param[out] io_reg_address Base address of the memory range.
- * @param[out] io_reg_size    Size of the memory range.
+ * @param[out] p_io_reg       Pointer to register range.
  * @param[out] kbd_irq        Primary port IRQ.
  * @param[out] mouse_irq      Auxiliary port IRQ.
@@ -63 +56 @@
  *
  */
-static int get_my_registers(ddf_dev_t *dev, uintptr_t *io_reg_address,
-    size_t *io_reg_size, int *kbd_irq, int *mouse_irq)
+static int get_my_registers(ddf_dev_t *dev, addr_range_t *p_io_reg,
+    int *kbd_irq, int *mouse_irq)
 {
         assert(dev);
@@ -85 +78 @@
         }
         
-        if (io_reg_address)
-                *io_reg_address = hw_resources.io_ranges.ranges[0].address;
-        
-        if (io_reg_size)
-                *io_reg_size = hw_resources.io_ranges.ranges[0].size;
+        if (p_io_reg)
+                *p_io_reg = hw_resources.io_ranges.ranges[0];
         
         if (kbd_irq)
@@ -110 +100 @@
 static int i8042_dev_add(ddf_dev_t *device)
 {
+        addr_range_t io_regs;
+        int kbd = 0;
+        int mouse = 0;
+        int rc;
+        
         if (!device)
                 return EINVAL;
         
-        uintptr_t io_regs = 0;
-        size_t io_size = 0;
-        int kbd = 0;
-        int mouse = 0;
+        rc = get_my_registers(device, &io_regs, &kbd, &mouse);
+        if (rc != EOK) {
+                ddf_msg(LVL_ERROR, "Failed to get registers: %s.",
+                    str_error(rc));
+                return 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));
-        ddf_msg(LVL_DEBUG, "I/O regs at %p (size %zuB), IRQ kbd %d, IRQ mouse %d.",
-            (void *) io_regs, io_size, kbd, mouse);
+        ddf_msg(LVL_DEBUG,
+            "I/O regs at %p (size %zuB), IRQ kbd %d, IRQ mouse %d.",
+            RNGABSPTR(io_regs), RNGSZ(io_regs), 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, &io_regs, 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 +152 @@
         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_notification_handler_stack_size(PAGE_SIZE);
+
         return ddf_driver_main(&i8042_driver);
 }