114 static inline void esb_unlock_registers(struct esb_dev *edev)  in esb_unlock_registers()  argument
116 	writew(ESB_UNLOCK1, ESB_RELOAD_REG(edev));  in esb_unlock_registers()
117 	writew(ESB_UNLOCK2, ESB_RELOAD_REG(edev));  in esb_unlock_registers()
122 	struct esb_dev *edev = to_esb_dev(wdd);  in esb_timer_start()  local
126 	esb_unlock_registers(edev);  in esb_timer_start()
127 	writew(ESB_WDT_RELOAD, ESB_RELOAD_REG(edev));  in esb_timer_start()
130 	pci_write_config_byte(edev->pdev, ESB_LOCK_REG, val);  in esb_timer_start()
136 	struct esb_dev *edev = to_esb_dev(wdd);  in esb_timer_stop()  local
140 	esb_unlock_registers(edev);  in esb_timer_stop()
141 	writew(ESB_WDT_RELOAD, ESB_RELOAD_REG(edev));  in esb_timer_stop()
143 	pci_write_config_byte(edev->pdev, ESB_LOCK_REG, 0x0);  in esb_timer_stop()
144 	pci_read_config_byte(edev->pdev, ESB_LOCK_REG, &val);  in esb_timer_stop()
152 	struct esb_dev *edev = to_esb_dev(wdd);  in esb_timer_keepalive()  local
154 	esb_unlock_registers(edev);  in esb_timer_keepalive()
155 	writew(ESB_WDT_RELOAD, ESB_RELOAD_REG(edev));  in esb_timer_keepalive()
163 	struct esb_dev *edev = to_esb_dev(wdd);  in esb_timer_set_heartbeat()  local
173 	esb_unlock_registers(edev);  in esb_timer_set_heartbeat()
174 	writel(val, ESB_TIMER1_REG(edev));  in esb_timer_set_heartbeat()
177 	esb_unlock_registers(edev);  in esb_timer_set_heartbeat()
178 	writel(val, ESB_TIMER2_REG(edev));  in esb_timer_set_heartbeat()
181 	esb_unlock_registers(edev);  in esb_timer_set_heartbeat()
182 	writew(ESB_WDT_RELOAD, ESB_RELOAD_REG(edev));  in esb_timer_set_heartbeat()
221 static unsigned char esb_getdevice(struct esb_dev *edev)  in esb_getdevice()  argument
223 	if (pci_enable_device(edev->pdev)) {  in esb_getdevice()
224 		dev_err(&edev->pdev->dev, "failed to enable device\n");  in esb_getdevice()
228 	if (pci_request_region(edev->pdev, 0, ESB_MODULE_NAME)) {  in esb_getdevice()
229 		dev_err(&edev->pdev->dev, "failed to request region\n");  in esb_getdevice()
233 	edev->base = pci_ioremap_bar(edev->pdev, 0);  in esb_getdevice()
234 	if (edev->base == NULL) {  in esb_getdevice()
236 		dev_err(&edev->pdev->dev, "failed to get BASEADDR\n");  in esb_getdevice()
241 	dev_set_drvdata(&edev->pdev->dev, edev);  in esb_getdevice()
245 	pci_release_region(edev->pdev, 0);  in esb_getdevice()
247 	pci_disable_device(edev->pdev);  in esb_getdevice()
252 static void esb_initdevice(struct esb_dev *edev)  in esb_initdevice()  argument
269 	pci_write_config_word(edev->pdev, ESB_CONFIG_REG, 0x0003);  in esb_initdevice()
272 	pci_read_config_byte(edev->pdev, ESB_LOCK_REG, &val1);  in esb_initdevice()
274 		dev_warn(&edev->pdev->dev, "nowayout already set\n");  in esb_initdevice()
277 	pci_write_config_byte(edev->pdev, ESB_LOCK_REG, 0x00);  in esb_initdevice()
280 	esb_unlock_registers(edev);  in esb_initdevice()
281 	val2 = readw(ESB_RELOAD_REG(edev));  in esb_initdevice()
283 		edev->wdd.bootstatus = WDIOF_CARDRESET;  in esb_initdevice()
286 	esb_unlock_registers(edev);  in esb_initdevice()
287 	writew((ESB_WDT_TIMEOUT | ESB_WDT_RELOAD), ESB_RELOAD_REG(edev));  in esb_initdevice()
290 	esb_timer_set_heartbeat(&edev->wdd, edev->wdd.timeout);  in esb_initdevice()
296 	struct esb_dev *edev;  in esb_probe()  local
299 	edev = devm_kzalloc(&pdev->dev, sizeof(*edev), GFP_KERNEL);  in esb_probe()
300 	if (!edev)  in esb_probe()
304 	edev->pdev = pdev;  in esb_probe()
305 	if (!esb_getdevice(edev))  in esb_probe()
309 	edev->wdd.info = &esb_info;  in esb_probe()
310 	edev->wdd.ops = &esb_ops;  in esb_probe()
311 	edev->wdd.min_timeout = ESB_HEARTBEAT_MIN;  in esb_probe()
312 	edev->wdd.max_timeout = ESB_HEARTBEAT_MAX;  in esb_probe()
313 	edev->wdd.timeout = ESB_HEARTBEAT_DEFAULT;  in esb_probe()
314 	if (watchdog_init_timeout(&edev->wdd, heartbeat, NULL))  in esb_probe()
317 			", using %u\n", edev->wdd.timeout);  in esb_probe()
318 	watchdog_set_nowayout(&edev->wdd, nowayout);  in esb_probe()
319 	watchdog_stop_on_reboot(&edev->wdd);  in esb_probe()
320 	watchdog_stop_on_unregister(&edev->wdd);  in esb_probe()
321 	esb_initdevice(edev);  in esb_probe()
324 	ret = watchdog_register_device(&edev->wdd);  in esb_probe()
332 		edev->base, edev->wdd.timeout, nowayout);  in esb_probe()
336 	iounmap(edev->base);  in esb_probe()
337 	pci_release_region(edev->pdev, 0);  in esb_probe()
338 	pci_disable_device(edev->pdev);  in esb_probe()
344 	struct esb_dev *edev = dev_get_drvdata(&pdev->dev);  in esb_remove()  local
346 	watchdog_unregister_device(&edev->wdd);  in esb_remove()
347 	iounmap(edev->base);  in esb_remove()
348 	pci_release_region(edev->pdev, 0);  in esb_remove()
349 	pci_disable_device(edev->pdev);  in esb_remove()