WebSVN – HelenOS – Diff – /branches/dynload/kernel/arch/arm32/src/drivers/gxemul.c

 /*
- * Copyright (c) 2005-2007 Ondrej Palkovsky, Michal Kebrt, Petr Stepan
+ * Copyright (c) 2007 Michal Kebrt, Petr Stepan
  * All rights reserved.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
 #include <arch/drivers/gxemul.h>
 #include <console/console.h>
 #include <sysinfo/sysinfo.h>
 #include <print.h>
 #include <ddi/device.h>
+#include <mm/page.h>
 /** Address of devices. */
-#define GXEMUL_VIDEORAM     0x10000000
+#define GXEMUL_VIDEORAM            0x10000000
-#define GXEMUL_KBD_ADDRESS  0x10000000
+#define GXEMUL_KBD                 0x10000000
-#define GXEMUL_RTC      0x15000000
+#define GXEMUL_RTC                 0x15000000
-#define GXEMUL_RTC_FREQ     0x15000100
+#define GXEMUL_RTC_FREQ_OFFSET     0x100
-#define GXEMUL_RTC_ACK      0x15000110
+#define GXEMUL_RTC_ACK_OFFSET      0x110
-#define GXEMUL_IRQC     0x16000000
+#define GXEMUL_IRQC                0x16000000
-#define GXEMUL_IRQC_MASK    0x16000004
+#define GXEMUL_IRQC_MASK_OFFSET    0x4
-#define GXEMUL_IRQC_UNMASK  0x16000008
+#define GXEMUL_IRQC_UNMASK_OFFSET  0x8
+#define GXEMUL_MP                  0x11000000
+#define GXEMUL_MP_MEMSIZE_OFFSET   0x0090
 /** IRQs */
 #define GXEMUL_KBD_IRQ      2
 #define GXEMUL_TIMER_IRQ    4
+static gxemul_hw_map_t gxemul_hw_map;
 static chardev_t console;
 static irq_t gxemul_irq;
 static irq_t gxemul_timer_irq;
 static void gxemul_write(chardev_t *dev, const char ch);
     .suspend = gxemul_disable,
     .write = gxemul_write,
     .read = gxemul_do_read,
 };
+/** Initializes #gxemul_hw_map. */
+void gxemul_hw_map_init(void)
+{
+    gxemul_hw_map.videoram = hw_map(GXEMUL_VIDEORAM, PAGE_SIZE);
+    gxemul_hw_map.kbd = hw_map(GXEMUL_KBD, PAGE_SIZE);
+    gxemul_hw_map.rtc = hw_map(GXEMUL_RTC, PAGE_SIZE);
+    gxemul_hw_map.irqc = hw_map(GXEMUL_IRQC, PAGE_SIZE);
+    gxemul_hw_map.rtc_freq = gxemul_hw_map.rtc + GXEMUL_RTC_FREQ_OFFSET;
+    gxemul_hw_map.rtc_ack = gxemul_hw_map.rtc + GXEMUL_RTC_ACK_OFFSET;
+    gxemul_hw_map.irqc_mask = gxemul_hw_map.irqc + GXEMUL_IRQC_MASK_OFFSET;
+    gxemul_hw_map.irqc_unmask = gxemul_hw_map.irqc + GXEMUL_IRQC_UNMASK_OFFSET;
+}
 /** Putchar that works with gxemul */
 void gxemul_write(chardev_t *dev, const char ch)
+{
-    *((char *) GXEMUL_VIDEORAM) = ch;
+    *((char *) gxemul_hw_map.videoram) = ch;
+}
 /* Called from getc(). */
 void gxemul_enable(chardev_t *dev)
+{
 static char gxemul_do_read(chardev_t *dev)
+{
     char ch;
     while (1) {
-        ch = *((volatile char *) GXEMUL_KBD_ADDRESS);
+        ch = *((volatile char *) gxemul_hw_map.kbd);
         if (ch) {
             if (ch == '\r')
                 return '\n';
             if (ch == 0x7f)
                 return '\b';
     if ((irq->notif_cfg.notify) && (irq->notif_cfg.answerbox))
         ipc_irq_send_notif(irq);
     else {
         char ch = 0;
-            ch = *((char *) GXEMUL_KBD_ADDRESS);
+            ch = *((char *) gxemul_hw_map.kbd);
             if (ch =='\r')
                 ch = '\n';
             if (ch == 0x7f)
                 ch = '\b';
             //chardev_push_character(&console, ch);
+}
 void gxemul_kbd_grab(void)
+{
     ipl_t ipl = interrupts_disable();
-    spinlock_lock(&msim_irq.lock);
+    spinlock_lock(&gxemul_irq.lock);
     gxemul_irq.notif_cfg.notify = false;
     spinlock_unlock(&gxemul_irq.lock);
     interrupts_restore(ipl);
+}
     spinlock_unlock(&gxemul_irq.lock);
     interrupts_restore(ipl);
+}
-/** Return console object representing msim console */
+/** Return console object representing gxemul console */
 void gxemul_console(devno_t devno)
+{
-    chardev_initialize("msim_console", &console, &gxemul_ops);
+    chardev_initialize("gxemul_console", &console, &gxemul_ops);
     stdin = &console;
     stdout = &console;
     irq_initialize(&gxemul_irq);
     gxemul_irq.devno = devno;
     gxemul_irqc_unmask(GXEMUL_KBD_IRQ);
     sysinfo_set_item_val("kbd", NULL, true);
     sysinfo_set_item_val("kbd.devno", NULL, devno);
     sysinfo_set_item_val("kbd.inr", NULL, GXEMUL_KBD_IRQ);
-    sysinfo_set_item_val("kbd.address.virtual", NULL, GXEMUL_KBD_ADDRESS);
+    sysinfo_set_item_val("kbd.address.virtual", NULL, gxemul_hw_map.kbd);
+}
 /** Return the mask of active interrupts. */
 inline uint32_t gxemul_irqc_get_sources(void)
+{
-    return *(uint32_t*) GXEMUL_IRQC;
+    return *(uint32_t*) gxemul_hw_map.irqc;
+}
 /** Masks interrupt.
+ *
  * @param irq interrupt number
  */
 inline void gxemul_irqc_mask(uint32_t irq)
+{
-    *(uint32_t*) GXEMUL_IRQC_MASK = irq;
+    *(uint32_t*) gxemul_hw_map.irqc_mask = irq;
+}
 /** Unmasks interrupt.
+ *
  * @param irq interrupt number
  */
 inline void gxemul_irqc_unmask(uint32_t irq)
+{
-    *(uint32_t*) GXEMUL_IRQC_UNMASK = irq;
+    *(uint32_t*) gxemul_hw_map.irqc_unmask = irq;
+}
 /** Starts gxemul Real Time Clock device, which asserts regular interrupts.
+ *
  * @param frequency interrupts frequency (0 disables RTC)
  */
 void gxemul_timer_start(uint32_t frequency)
+{
-    *(uint32_t*) GXEMUL_RTC_FREQ = frequency;
+    *(uint32_t*) gxemul_hw_map.rtc_freq = frequency;
+}
 static irq_ownership_t gxemul_timer_claim(void)
+{
     return IRQ_ACCEPT;
     //clock();
     puts(" ");
     spinlock_lock(&irq->lock);
     /* acknowledge tick */
-    *(uint32_t*) GXEMUL_RTC_ACK = 0;
+    *(uint32_t*) gxemul_hw_map.rtc_ack = 0;
     /* TODO what's that? *
     if (virtual_timer_fnc != NULL)
         virtual_timer_fnc();
     */
     gxemul_timer_irq.handler = gxemul_timer_irq_handler;
     irq_register(&gxemul_timer_irq);
+}
+size_t gxemul_get_memory_size(void)
+{
+    return  *((int*)(GXEMUL_MP + GXEMUL_MP_MEMSIZE_OFFSET));
+}
 /** @}
  */

Subversion Repositories HelenOS

(root)/branches/dynload/kernel/arch/arm32/src/drivers/gxemul.c @ 4346 – Rev 2261 → 2263