112 static void i6300esb_restart_timer(I6300State *d, int stage)  in OBJECT_DECLARE_SIMPLE_TYPE()
116     if (!d->enabled)  in OBJECT_DECLARE_SIMPLE_TYPE()
119     d->stage = stage;  in OBJECT_DECLARE_SIMPLE_TYPE()
121     if (d->stage <= 1)  in OBJECT_DECLARE_SIMPLE_TYPE()
122         timeout = d->timer1_preload;  in OBJECT_DECLARE_SIMPLE_TYPE()
124         timeout = d->timer2_preload;  in OBJECT_DECLARE_SIMPLE_TYPE()
126     if (d->clock_scale == CLOCK_SCALE_1KHZ)  in OBJECT_DECLARE_SIMPLE_TYPE()
135     i6300esb_debug("stage %d, timeout %" PRIi64 "\n", d->stage, timeout);  in OBJECT_DECLARE_SIMPLE_TYPE()
137     timer_mod(d->timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + timeout);  in OBJECT_DECLARE_SIMPLE_TYPE()
141 static void i6300esb_disable_timer(I6300State *d)  in i6300esb_disable_timer()  argument
145     timer_del(d->timer);  in i6300esb_disable_timer()
151     I6300State *d = WATCHDOG_I6300ESB_DEVICE(pdev);  in i6300esb_reset()  local
153     i6300esb_debug("I6300State = %p\n", d);  in i6300esb_reset()
155     i6300esb_disable_timer(d);  in i6300esb_reset()
159     d->reboot_enabled = 1;  in i6300esb_reset()
160     d->clock_scale = CLOCK_SCALE_1KHZ;  in i6300esb_reset()
161     d->int_type = INT_TYPE_IRQ;  in i6300esb_reset()
162     d->free_run = 0;  in i6300esb_reset()
163     d->locked = 0;  in i6300esb_reset()
164     d->enabled = 0;  in i6300esb_reset()
165     d->timer1_preload = 0xfffff;  in i6300esb_reset()
166     d->timer2_preload = 0xfffff;  in i6300esb_reset()
167     d->stage = 1;  in i6300esb_reset()
168     d->unlock_state = 0;  in i6300esb_reset()
180     I6300State *d = vp;  in i6300esb_timer_expired()  local
182     i6300esb_debug("stage %d\n", d->stage);  in i6300esb_timer_expired()
184     if (d->stage == 1) {  in i6300esb_timer_expired()
186         switch (d->int_type) {  in i6300esb_timer_expired()
196         i6300esb_restart_timer(d, 2);  in i6300esb_timer_expired()
199         if (d->reboot_enabled) {  in i6300esb_timer_expired()
200             d->previous_reboot_flag = 1;  in i6300esb_timer_expired()
202             i6300esb_reset(DEVICE(d));  in i6300esb_timer_expired()
206         if (d->free_run)  in i6300esb_timer_expired()
207             i6300esb_restart_timer(d, 1);  in i6300esb_timer_expired()
214     I6300State *d = WATCHDOG_I6300ESB_DEVICE(dev);  in i6300esb_config_write()  local
220         d->reboot_enabled = (data & ESB_WDT_REBOOT) == 0;  in i6300esb_config_write()
221         d->clock_scale =  in i6300esb_config_write()
223         d->int_type = (data & ESB_WDT_INTTYPE);  in i6300esb_config_write()
225         if (!d->locked) {  in i6300esb_config_write()
226             d->locked = (data & ESB_WDT_LOCK) != 0;  in i6300esb_config_write()
227             d->free_run = (data & ESB_WDT_FUNC) != 0;  in i6300esb_config_write()
228             old = d->enabled;  in i6300esb_config_write()
229             d->enabled = (data & ESB_WDT_ENABLE) != 0;  in i6300esb_config_write()
230             if (!old && d->enabled) /* Enabled transitioned from 0 -> 1 */  in i6300esb_config_write()
231                 i6300esb_restart_timer(d, 1);  in i6300esb_config_write()
232             else if (!d->enabled)  in i6300esb_config_write()
233                 i6300esb_disable_timer(d);  in i6300esb_config_write()
242     I6300State *d = WATCHDOG_I6300ESB_DEVICE(dev);  in i6300esb_config_read()  local
249             (d->reboot_enabled ? 0 : ESB_WDT_REBOOT) |  in i6300esb_config_read()
250             (d->clock_scale == CLOCK_SCALE_1MHZ ? ESB_WDT_FREQ : 0) |  in i6300esb_config_read()
251             d->int_type;  in i6300esb_config_read()
255             (d->free_run ? ESB_WDT_FUNC : 0) |  in i6300esb_config_read()
256             (d->locked ? ESB_WDT_LOCK : 0) |  in i6300esb_config_read()
257             (d->enabled ? ESB_WDT_ENABLE : 0);  in i6300esb_config_read()
274     I6300State *d = vp;  in i6300esb_mem_readw()  local
283         data = d->previous_reboot_flag ? 0x1200 : 0;  in i6300esb_mem_readw()
298     I6300State *d = vp;  in i6300esb_mem_writeb()  local
303         d->unlock_state = 1;  in i6300esb_mem_writeb()
304     else if (addr == 0xc && val == 0x86 && d->unlock_state == 1)  in i6300esb_mem_writeb()
305         d->unlock_state = 2;  in i6300esb_mem_writeb()
310     I6300State *d = vp;  in i6300esb_mem_writew()  local
315         d->unlock_state = 1;  in i6300esb_mem_writew()
316     else if (addr == 0xc && val == 0x86 && d->unlock_state == 1)  in i6300esb_mem_writew()
317         d->unlock_state = 2;  in i6300esb_mem_writew()
319         if (d->unlock_state == 2) {  in i6300esb_mem_writew()
325                     i6300esb_restart_timer(d, 1);  in i6300esb_mem_writew()
332                     d->previous_reboot_flag = 0;  in i6300esb_mem_writew()
336             d->unlock_state = 0;  in i6300esb_mem_writew()
343     I6300State *d = vp;  in i6300esb_mem_writel()  local
348         d->unlock_state = 1;  in i6300esb_mem_writel()
349     else if (addr == 0xc && val == 0x86 && d->unlock_state == 1)  in i6300esb_mem_writel()
350         d->unlock_state = 2;  in i6300esb_mem_writel()
352         if (d->unlock_state == 2) {  in i6300esb_mem_writel()
354                 d->timer1_preload = val & 0xfffff;  in i6300esb_mem_writel()
356                 d->timer2_preload = val & 0xfffff;  in i6300esb_mem_writel()
358             d->unlock_state = 0;  in i6300esb_mem_writel()
441     I6300State *d = WATCHDOG_I6300ESB_DEVICE(dev);  in i6300esb_realize()  local
443     i6300esb_debug("I6300State = %p\n", d);  in i6300esb_realize()
445     d->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, i6300esb_timer_expired, d);  in i6300esb_realize()
446     d->previous_reboot_flag = 0;  in i6300esb_realize()
448     memory_region_init_io(&d->io_mem, OBJECT(d), &i6300esb_ops, d,  in i6300esb_realize()
450     pci_register_bar(&d->dev, 0, 0, &d->io_mem);  in i6300esb_realize()
455     I6300State *d = WATCHDOG_I6300ESB_DEVICE(dev);  in i6300esb_exit()  local
457     timer_free(d->timer);  in i6300esb_exit()