2  * SDIO access interface for drivers - linux specific (pci only)
6  * Copyright (C) 1999-2017, Broadcom Corporation
27  * <<Broadcom-WL-IPTag/Open:>>
29  * $Id: bcmsdh_linux.c 689948 2017-03-14 05:21:03Z $
64 /* the BCMSDH module comprises the generic part (bcmsdh.c) and OS specific layer (e.g.
65  * bcmsdh_linux.c). Put all OS specific variables (e.g. irq number and flags) here rather
93  * Checks to see if vendor and device IDs match a supported SDIO Host Controller.
96 bcmsdh_chipmatch(uint16 vendor, uint16 device)  in bcmsdh_chipmatch()  argument
102 	if (vendor == VENDOR_SI_IMAGE) {  in bcmsdh_chipmatch()
105 	if (device == SDIOH_FPGA_ID && vendor == VENDOR_CYPRESS) {  in bcmsdh_chipmatch()
109 	if (device == BCM27XX_SDIOH_ID && vendor == VENDOR_BROADCOM) {  in bcmsdh_chipmatch()
113 	if (device == SDIOH_FPGA_ID && vendor == VENDOR_BROADCOM) {  in bcmsdh_chipmatch()
117 	if (device == PCIXX21_SDIOH_ID && vendor == VENDOR_TI) {  in bcmsdh_chipmatch()
120 	if (device == PCIXX21_SDIOH0_ID && vendor == VENDOR_TI) {  in bcmsdh_chipmatch()
124 	if (device == R5C822_SDIOH_ID && vendor == VENDOR_RICOH) {  in bcmsdh_chipmatch()
128 	if (device == JMICRON_SDIOH_ID && vendor == VENDOR_JMICRON) {  in bcmsdh_chipmatch()
135 	if (device == SPIH_FPGA_ID && vendor == VENDOR_BROADCOM) {  in bcmsdh_chipmatch()
164 	bcmsdh->os_cxt = bcmsdh_osinfo;  in bcmsdh_probe()
165 	bcmsdh_osinfo->sdioh = sdioh;  in bcmsdh_probe()
166 	bcmsdh_osinfo->dev = dev;  in bcmsdh_probe()
172 		bcmsdh_osinfo->dev_wake_enabled = TRUE;  in bcmsdh_probe()
178 	spin_lock_init(&bcmsdh_osinfo->oob_irq_spinlock);  in bcmsdh_probe()
179 	/* Get customer specific OOB IRQ parametres: IRQ number as IRQ type */  in bcmsdh_probe()
180 	bcmsdh_osinfo->oob_irq_num = wifi_platform_get_irq_number(adapter_info,  in bcmsdh_probe()
181 		&bcmsdh_osinfo->oob_irq_flags);  in bcmsdh_probe()
182 	if  (bcmsdh_osinfo->oob_irq_num < 0) {  in bcmsdh_probe()
188 	/* Read the vendor/device ID from the CIS */  in bcmsdh_probe()
193 	bcmsdh_osinfo->context = drvinfo.probe((vendevid >> 16), (vendevid & 0xFFFF), bus_num,  in bcmsdh_probe()
196 	bcmsdh_osinfo->context = drvinfo.probe((vendevid >> 16), (vendevid & 0xFFFF), bus_num,  in bcmsdh_probe()
199 	if (bcmsdh_osinfo->context == NULL) {  in bcmsdh_probe()
217 	bcmsdh_os_info_t *bcmsdh_osinfo = bcmsdh->os_cxt;  in bcmsdh_remove()
221 	if (bcmsdh_osinfo->dev)  in bcmsdh_remove()
222 		device_init_wakeup(bcmsdh_osinfo->dev, false);  in bcmsdh_remove()
223 	bcmsdh_osinfo->dev_wake_enabled = FALSE;  in bcmsdh_remove()
228 	drvinfo.remove(bcmsdh_osinfo->context);  in bcmsdh_remove()
229 	MFREE(bcmsdh->osh, bcmsdh->os_cxt, sizeof(bcmsdh_os_info_t));  in bcmsdh_remove()
230 	bcmsdh_detach(bcmsdh->osh, bcmsdh);  in bcmsdh_remove()
238 	return bcmsdh->total_wake_count;  in bcmsdh_get_total_wake()
243 	bcmsdh_os_info_t *bcmsdh_osinfo = bcmsdh->os_cxt;  in bcmsdh_set_get_wake()
247 	spin_lock_irqsave(&bcmsdh_osinfo->oob_irq_spinlock, flags);  in bcmsdh_set_get_wake()
249 	ret = bcmsdh->pkt_wake;  in bcmsdh_set_get_wake()
250 	bcmsdh->total_wake_count += flag;  in bcmsdh_set_get_wake()
251 	bcmsdh->pkt_wake = flag;  in bcmsdh_set_get_wake()
253 	spin_unlock_irqrestore(&bcmsdh_osinfo->oob_irq_spinlock, flags);  in bcmsdh_set_get_wake()
260 	bcmsdh_os_info_t *bcmsdh_osinfo = bcmsdh->os_cxt;  in bcmsdh_suspend()
262 	if (drvinfo.suspend && drvinfo.suspend(bcmsdh_osinfo->context))  in bcmsdh_suspend()
263 		return -EBUSY;  in bcmsdh_suspend()
269 	bcmsdh_os_info_t *bcmsdh_osinfo = bcmsdh->os_cxt;  in bcmsdh_resume()
272 		return drvinfo.resume(bcmsdh_osinfo->context);  in bcmsdh_resume()
322 	bcmsdh_os_info_t *bcmsdh_osinfo = bcmsdh->os_cxt;  in bcmsdh_dev_pm_stay_awake()
323 	pm_stay_awake(bcmsdh_osinfo->dev);  in bcmsdh_dev_pm_stay_awake()
333 	bcmsdh_os_info_t *bcmsdh_osinfo = bcmsdh->os_cxt;  in bcmsdh_dev_relax()
334 	pm_relax(bcmsdh_osinfo->dev);  in bcmsdh_dev_relax()
342 	bcmsdh_os_info_t *bcmsdh_osinfo = bcmsdh->os_cxt;  in bcmsdh_dev_pm_enabled()
344 	return bcmsdh_osinfo->dev_wake_enabled;  in bcmsdh_dev_pm_enabled()
356 	bcmsdh_osinfo = bcmsdh->os_cxt;  in bcmsdh_oob_intr_set()
357 	spin_lock_irqsave(&bcmsdh_osinfo->oob_irq_spinlock, flags);  in bcmsdh_oob_intr_set()
358 	if (bcmsdh_osinfo->oob_irq_enabled != enable) {  in bcmsdh_oob_intr_set()
360 			enable_irq(bcmsdh_osinfo->oob_irq_num);  in bcmsdh_oob_intr_set()
362 			disable_irq_nosync(bcmsdh_osinfo->oob_irq_num);  in bcmsdh_oob_intr_set()
363 		bcmsdh_osinfo->oob_irq_enabled = enable;  in bcmsdh_oob_intr_set()
365 	spin_unlock_irqrestore(&bcmsdh_osinfo->oob_irq_spinlock, flags);  in bcmsdh_oob_intr_set()
371 	bcmsdh_os_info_t *bcmsdh_osinfo = bcmsdh->os_cxt;  in wlan_oob_irq()
376 	bcmsdh_osinfo->oob_irq_handler(bcmsdh_osinfo->oob_irq_handler_context);  in wlan_oob_irq()
385 	bcmsdh_os_info_t *bcmsdh_osinfo = bcmsdh->os_cxt;  in bcmsdh_oob_intr_register()
388 	if (bcmsdh_osinfo->oob_irq_registered) {  in bcmsdh_oob_intr_register()
390 		return -EBUSY;  in bcmsdh_oob_intr_register()
393 		(int)bcmsdh_osinfo->oob_irq_num, (int)bcmsdh_osinfo->oob_irq_flags));  in bcmsdh_oob_intr_register()
394 	bcmsdh_osinfo->oob_irq_handler = oob_irq_handler;  in bcmsdh_oob_intr_register()
395 	bcmsdh_osinfo->oob_irq_handler_context = oob_irq_handler_context;  in bcmsdh_oob_intr_register()
396 	bcmsdh_osinfo->oob_irq_enabled = TRUE;  in bcmsdh_oob_intr_register()
397 	bcmsdh_osinfo->oob_irq_registered = TRUE;  in bcmsdh_oob_intr_register()
398 	err = request_irq(bcmsdh_osinfo->oob_irq_num, wlan_oob_irq,  in bcmsdh_oob_intr_register()
399 		bcmsdh_osinfo->oob_irq_flags, "bcmsdh_sdmmc", bcmsdh);  in bcmsdh_oob_intr_register()
402 		bcmsdh_osinfo->oob_irq_enabled = FALSE;  in bcmsdh_oob_intr_register()
403 		bcmsdh_osinfo->oob_irq_registered = FALSE;  in bcmsdh_oob_intr_register()
408 	if (device_may_wakeup(bcmsdh_osinfo->dev)) {  in bcmsdh_oob_intr_register()
410 		err = enable_irq_wake(bcmsdh_osinfo->oob_irq_num);  in bcmsdh_oob_intr_register()
412 			bcmsdh_osinfo->oob_irq_wake_enabled = TRUE;  in bcmsdh_oob_intr_register()
422 	bcmsdh_os_info_t *bcmsdh_osinfo = bcmsdh->os_cxt;  in bcmsdh_oob_intr_unregister()
425 	if (!bcmsdh_osinfo->oob_irq_registered) {  in bcmsdh_oob_intr_unregister()
429 	if (bcmsdh_osinfo->oob_irq_wake_enabled) {  in bcmsdh_oob_intr_unregister()
431 		if (device_may_wakeup(bcmsdh_osinfo->dev)) {  in bcmsdh_oob_intr_unregister()
433 			err = disable_irq_wake(bcmsdh_osinfo->oob_irq_num);  in bcmsdh_oob_intr_unregister()
435 				bcmsdh_osinfo->oob_irq_wake_enabled = FALSE;  in bcmsdh_oob_intr_unregister()
440 	if (bcmsdh_osinfo->oob_irq_enabled) {  in bcmsdh_oob_intr_unregister()
441 		disable_irq(bcmsdh_osinfo->oob_irq_num);  in bcmsdh_oob_intr_unregister()
442 		bcmsdh_osinfo->oob_irq_enabled = FALSE;  in bcmsdh_oob_intr_unregister()
444 	free_irq(bcmsdh_osinfo->oob_irq_num, bcmsdh);  in bcmsdh_oob_intr_unregister()
445 	bcmsdh_osinfo->oob_irq_registered = FALSE;  in bcmsdh_oob_intr_unregister()
449 /* Module parameters specific to each host-controller driver */
464 extern uint sd_divisor;	/* Divisor (-1 means external clock) */
470 extern uint sd_hiok;	/* Ok to use hi-speed mode */
487 /* SDIO Drive Strength for UHSI mode specific to SDIO3.0 */