110 static inline void esb_unlock_registers(struct esb_dev *edev)  in esb_unlock_registers()  argument
112 	writew(ESB_UNLOCK1, ESB_RELOAD_REG(edev));  in esb_unlock_registers()
113 	writew(ESB_UNLOCK2, ESB_RELOAD_REG(edev));  in esb_unlock_registers()
118 	struct esb_dev *edev = to_esb_dev(wdd);  in esb_timer_start()  local
122 	esb_unlock_registers(edev);  in esb_timer_start()
123 	writew(ESB_WDT_RELOAD, ESB_RELOAD_REG(edev));  in esb_timer_start()
126 	pci_write_config_byte(edev->pdev, ESB_LOCK_REG, val);  in esb_timer_start()
132 	struct esb_dev *edev = to_esb_dev(wdd);  in esb_timer_stop()  local
136 	esb_unlock_registers(edev);  in esb_timer_stop()
137 	writew(ESB_WDT_RELOAD, ESB_RELOAD_REG(edev));  in esb_timer_stop()
139 	pci_write_config_byte(edev->pdev, ESB_LOCK_REG, 0x0);  in esb_timer_stop()
140 	pci_read_config_byte(edev->pdev, ESB_LOCK_REG, &val);  in esb_timer_stop()
148 	struct esb_dev *edev = to_esb_dev(wdd);  in esb_timer_keepalive()  local
150 	esb_unlock_registers(edev);  in esb_timer_keepalive()
151 	writew(ESB_WDT_RELOAD, ESB_RELOAD_REG(edev));  in esb_timer_keepalive()
159 	struct esb_dev *edev = to_esb_dev(wdd);  in esb_timer_set_heartbeat()  local
169 	esb_unlock_registers(edev);  in esb_timer_set_heartbeat()
170 	writel(val, ESB_TIMER1_REG(edev));  in esb_timer_set_heartbeat()
173 	esb_unlock_registers(edev);  in esb_timer_set_heartbeat()
174 	writel(val, ESB_TIMER2_REG(edev));  in esb_timer_set_heartbeat()
177 	esb_unlock_registers(edev);  in esb_timer_set_heartbeat()
178 	writew(ESB_WDT_RELOAD, ESB_RELOAD_REG(edev));  in esb_timer_set_heartbeat()
217 static unsigned char esb_getdevice(struct esb_dev *edev)  in esb_getdevice()  argument
219 	if (pci_enable_device(edev->pdev)) {  in esb_getdevice()
220 		dev_err(&edev->pdev->dev, "failed to enable device\n");  in esb_getdevice()
224 	if (pci_request_region(edev->pdev, 0, ESB_MODULE_NAME)) {  in esb_getdevice()
225 		dev_err(&edev->pdev->dev, "failed to request region\n");  in esb_getdevice()
229 	edev->base = pci_ioremap_bar(edev->pdev, 0);  in esb_getdevice()
230 	if (edev->base == NULL) {  in esb_getdevice()
232 		dev_err(&edev->pdev->dev, "failed to get BASEADDR\n");  in esb_getdevice()
237 	dev_set_drvdata(&edev->pdev->dev, edev);  in esb_getdevice()
241 	pci_release_region(edev->pdev, 0);  in esb_getdevice()
243 	pci_disable_device(edev->pdev);  in esb_getdevice()
248 static void esb_initdevice(struct esb_dev *edev)  in esb_initdevice()  argument
265 	pci_write_config_word(edev->pdev, ESB_CONFIG_REG, 0x0003);  in esb_initdevice()
268 	pci_read_config_byte(edev->pdev, ESB_LOCK_REG, &val1);  in esb_initdevice()
270 		dev_warn(&edev->pdev->dev, "nowayout already set\n");  in esb_initdevice()
273 	pci_write_config_byte(edev->pdev, ESB_LOCK_REG, 0x00);  in esb_initdevice()
276 	esb_unlock_registers(edev);  in esb_initdevice()
277 	val2 = readw(ESB_RELOAD_REG(edev));  in esb_initdevice()
279 		edev->wdd.bootstatus = WDIOF_CARDRESET;  in esb_initdevice()
282 	esb_unlock_registers(edev);  in esb_initdevice()
283 	writew((ESB_WDT_TIMEOUT | ESB_WDT_RELOAD), ESB_RELOAD_REG(edev));  in esb_initdevice()
286 	esb_timer_set_heartbeat(&edev->wdd, edev->wdd.timeout);  in esb_initdevice()
292 	struct esb_dev *edev;  in esb_probe()  local
295 	edev = devm_kzalloc(&pdev->dev, sizeof(*edev), GFP_KERNEL);  in esb_probe()
296 	if (!edev)  in esb_probe()
300 	edev->pdev = pdev;  in esb_probe()
301 	if (!esb_getdevice(edev))  in esb_probe()
305 	edev->wdd.info = &esb_info;  in esb_probe()
306 	edev->wdd.ops = &esb_ops;  in esb_probe()
307 	edev->wdd.min_timeout = ESB_HEARTBEAT_MIN;  in esb_probe()
308 	edev->wdd.max_timeout = ESB_HEARTBEAT_MAX;  in esb_probe()
309 	edev->wdd.timeout = ESB_HEARTBEAT_DEFAULT;  in esb_probe()
310 	watchdog_init_timeout(&edev->wdd, heartbeat, NULL);  in esb_probe()
311 	watchdog_set_nowayout(&edev->wdd, nowayout);  in esb_probe()
312 	watchdog_stop_on_reboot(&edev->wdd);  in esb_probe()
313 	watchdog_stop_on_unregister(&edev->wdd);  in esb_probe()
314 	esb_initdevice(edev);  in esb_probe()
317 	ret = watchdog_register_device(&edev->wdd);  in esb_probe()
322 		edev->wdd.timeout, nowayout);  in esb_probe()
326 	iounmap(edev->base);  in esb_probe()
327 	pci_release_region(edev->pdev, 0);  in esb_probe()
328 	pci_disable_device(edev->pdev);  in esb_probe()
334 	struct esb_dev *edev = dev_get_drvdata(&pdev->dev);  in esb_remove()  local
336 	watchdog_unregister_device(&edev->wdd);  in esb_remove()
337 	iounmap(edev->base);  in esb_remove()
338 	pci_release_region(edev->pdev, 0);  in esb_remove()
339 	pci_disable_device(edev->pdev);  in esb_remove()