1 // SPDX-License-Identifier: GPL-2.0-only
3  * Mac80211 SDIO driver for ST-Ericsson CW1200 device
5  * Copyright (c) 2010, ST-Ericsson
6  * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
16 #include <linux/mmc/sdio.h>
22 #include <linux/platform_data/net-cw1200.h>
25 MODULE_AUTHOR("Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>");
26 MODULE_DESCRIPTION("mac80211 ST-Ericsson CW1200 SDIO driver");
56 MODULE_DEVICE_TABLE(sdio, cw1200_sdio_ids);
64 	return sdio_memcpy_fromio(self->func, dst, addr, count);  in cw1200_sdio_memcpy_fromio()
71 	return sdio_memcpy_toio(self->func, addr, (void *)src, count);  in cw1200_sdio_memcpy_toio()
76 	sdio_claim_host(self->func);  in cw1200_sdio_lock()
81 	sdio_release_host(self->func);  in cw1200_sdio_unlock()
89 	if (self->core)  in cw1200_sdio_irq_handler()
90 		cw1200_irq_handler(self->core);  in cw1200_sdio_irq_handler()
102 	if (self->core) {  in cw1200_gpio_irq()
104 		cw1200_irq_handler(self->core);  in cw1200_gpio_irq()
117 	cccr = sdio_f0_readb(self->func, SDIO_CCCR_IENx, &ret);  in cw1200_request_irq()
125 	cccr |= BIT(self->func->num);  in cw1200_request_irq()
127 	sdio_f0_writeb(self->func, cccr, SDIO_CCCR_IENx, &ret);  in cw1200_request_irq()
131 	ret = enable_irq_wake(self->pdata->irq);  in cw1200_request_irq()
136 	ret =  request_threaded_irq(self->pdata->irq, cw1200_gpio_hardirq,  in cw1200_request_irq()
154 	sdio_claim_host(self->func);  in cw1200_sdio_irq_subscribe()
155 	if (self->pdata->irq)  in cw1200_sdio_irq_subscribe()
158 		ret = sdio_claim_irq(self->func, cw1200_sdio_irq_handler);  in cw1200_sdio_irq_subscribe()
160 	sdio_release_host(self->func);  in cw1200_sdio_irq_subscribe()
170 	if (self->pdata->irq) {  in cw1200_sdio_irq_unsubscribe()
171 		disable_irq_wake(self->pdata->irq);  in cw1200_sdio_irq_unsubscribe()
172 		free_irq(self->pdata->irq, self);  in cw1200_sdio_irq_unsubscribe()
174 		sdio_claim_host(self->func);  in cw1200_sdio_irq_unsubscribe()
175 		ret = sdio_release_irq(self->func);  in cw1200_sdio_irq_unsubscribe()
176 		sdio_release_host(self->func);  in cw1200_sdio_irq_unsubscribe()
192 	if (pdata->power_ctrl)  in cw1200_sdio_off()
193 		pdata->power_ctrl(pdata, false);  in cw1200_sdio_off()
194 	if (pdata->clk_ctrl)  in cw1200_sdio_off()
195 		pdata->clk_ctrl(pdata, false);  in cw1200_sdio_off()
205 		pr_err("could not get CW1200 SDIO reset GPIO\n");  in cw1200_sdio_on()
211 		pr_err("could not get CW1200 SDIO powerup GPIO\n");  in cw1200_sdio_on()
220 	if (pdata->power_ctrl) {  in cw1200_sdio_on()
221 		if (pdata->power_ctrl(pdata, true)) {  in cw1200_sdio_on()
223 			return -1;  in cw1200_sdio_on()
228 	if (pdata->clk_ctrl) {  in cw1200_sdio_on()
229 		if (pdata->clk_ctrl(pdata, true)) {  in cw1200_sdio_on()
231 			return -1;  in cw1200_sdio_on()
251 	if (self->pdata->no_nptb)  in cw1200_sdio_align_size()
254 		size = sdio_align_size(self->func, size);  in cw1200_sdio_align_size()
263 	if (self->pdata->irq)  in cw1200_sdio_pm()
264 		ret = irq_set_irq_wake(self->pdata->irq, suspend);  in cw1200_sdio_pm()
277 /* Probe Function to be called by SDIO stack when device is discovered */
287 	if (func->num != 0x01)  in cw1200_sdio_probe()
288 		return -ENODEV;  in cw1200_sdio_probe()
292 		pr_err("Can't allocate SDIO hwbus_priv.\n");  in cw1200_sdio_probe()
293 		return -ENOMEM;  in cw1200_sdio_probe()
296 	func->card->quirks |= MMC_QUIRK_LENIENT_FN0;  in cw1200_sdio_probe()
298 	self->pdata = global_plat_data; /* FIXME */  in cw1200_sdio_probe()
299 	self->func = func;  in cw1200_sdio_probe()
308 				   self, &func->dev, &self->core,  in cw1200_sdio_probe()
309 				   self->pdata->ref_clk,  in cw1200_sdio_probe()
310 				   self->pdata->macaddr,  in cw1200_sdio_probe()
311 				   self->pdata->sdd_file,  in cw1200_sdio_probe()
312 				   self->pdata->have_5ghz);  in cw1200_sdio_probe()
325 /* Disconnect Function to be called by SDIO stack when
334 		if (self->core) {  in cw1200_sdio_disconnect()
335 			cw1200_core_release(self->core);  in cw1200_sdio_disconnect()
336 			self->core = NULL;  in cw1200_sdio_disconnect()
353 	if (!cw1200_can_suspend(self->core))  in cw1200_sdio_suspend()
354 		return -EAGAIN;  in cw1200_sdio_suspend()
356 	/* Notify SDIO that CW1200 will remain powered during suspend */  in cw1200_sdio_suspend()
359 		pr_err("Error setting SDIO pm flags: %i\n", ret);  in cw1200_sdio_suspend()
387 /* Init Module function -> Called by insmod */
393 	/* FIXME -- this won't support multiple devices */  in cw1200_sdio_init()
397 		ret = -1;  in cw1200_sdio_init()
417 	/* FIXME -- this won't support multiple devices */  in cw1200_sdio_exit()