28 		 "1[Wi-Fi], 4[BT], 8[BT LE], 5[Wi-Fi STA + BT classic]\n"
29 		 "9[Wi-Fi STA + BT LE], 13[Wi-Fi STA + BT classic + BT LE]\n"
33  * rsi_sdio_set_cmd52_arg() - This function prepares cmd 52 read/write arg.
55  * rsi_cmd52writebyte() - This function issues cmd52 byte write onto the card.
75 	return mmc_wait_for_cmd(card->host, &io_cmd, 0);  in rsi_cmd52writebyte()
79  * rsi_cmd52readbyte() - This function issues cmd52 byte read onto the card.
100 	err = mmc_wait_for_cmd(card->host, &io_cmd, 0);  in rsi_cmd52readbyte()
107  * rsi_issue_sdiocommand() - This function issues sdio commands.
114  * Return: err: command status as 0 or -1.
126 	host = func->card->host;  in rsi_issue_sdiocommand()
141  * rsi_handle_interrupt() - This function is called upon the occurrence
151 		(struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_handle_interrupt()
153 	if (adapter->priv->fsm_state == FSM_FW_NOT_LOADED)  in rsi_handle_interrupt()
156 	rsi_set_event(&dev->rx_thread.event);  in rsi_handle_interrupt()
160  * rsi_reset_card() - This function resets and re-initializes the card.
169 	struct mmc_card *card = pfunction->card;  in rsi_reset_card()
170 	struct mmc_host *host = card->host;  in rsi_reset_card()
176 	ret = rsi_cmd52writebyte(pfunction->card,  in rsi_reset_card()
183 	if (ret != -ETIMEDOUT)  in rsi_reset_card()
190 	host->ios.chip_select = MMC_CS_DONTCARE;  in rsi_reset_card()
191 	host->ios.bus_mode = MMC_BUSMODE_OPENDRAIN;  in rsi_reset_card()
192 	host->ios.power_mode = MMC_POWER_UP;  in rsi_reset_card()
193 	host->ios.bus_width = MMC_BUS_WIDTH_1;  in rsi_reset_card()
194 	host->ios.timing = MMC_TIMING_LEGACY;  in rsi_reset_card()
195 	host->ops->set_ios(host, &host->ios);  in rsi_reset_card()
203 	host->ios.clock = host->f_min;  in rsi_reset_card()
204 	host->ios.power_mode = MMC_POWER_ON;  in rsi_reset_card()
205 	host->ops->set_ios(host, &host->ios);  in rsi_reset_card()
214 	host->ios.chip_select = MMC_CS_HIGH;  in rsi_reset_card()
215 	host->ops->set_ios(host, &host->ios);  in rsi_reset_card()
222 	host->ios.chip_select = MMC_CS_DONTCARE;  in rsi_reset_card()
223 	host->ops->set_ios(host, &host->ios);  in rsi_reset_card()
225 	host->use_spi_crc = 0;  in rsi_reset_card()
236 	card->ocr = resp;  in rsi_reset_card()
240 					    card->ocr,  in rsi_reset_card()
270 	host->ios.bus_mode = MMC_BUSMODE_PUSHPULL;  in rsi_reset_card()
271 	host->ops->set_ios(host, &host->ios);  in rsi_reset_card()
285 	if (card->host->caps & MMC_CAP_SD_HIGHSPEED) {  in rsi_reset_card()
301 			host->ios.timing = MMC_TIMING_SD_HS;  in rsi_reset_card()
302 			host->ops->set_ios(host, &host->ios);  in rsi_reset_card()
310 		clock = card->cis.max_dtr;  in rsi_reset_card()
312 	if (clock > host->f_max)  in rsi_reset_card()
313 		clock = host->f_max;  in rsi_reset_card()
315 	host->ios.clock = clock;  in rsi_reset_card()
316 	host->ops->set_ios(host, &host->ios);  in rsi_reset_card()
318 	if (card->host->caps & MMC_CAP_4_BIT_DATA) {  in rsi_reset_card()
329 		host->ios.bus_width = MMC_BUS_WIDTH_4;  in rsi_reset_card()
330 		host->ops->set_ios(host, &host->ios);  in rsi_reset_card()
335  * rsi_setclock() - This function sets the clock frequency.
344 		(struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_setclock()
345 	struct mmc_host *host = dev->pfunction->card->host;  in rsi_setclock()
349 	if (clock > host->f_max)  in rsi_setclock()
350 		clock = host->f_max;  in rsi_setclock()
351 	host->ios.clock = clock;  in rsi_setclock()
352 	host->ops->set_ios(host, &host->ios);  in rsi_setclock()
356  * rsi_setblocklength() - This function sets the host block length.
360  * Return: status: 0 on success, -1 on failure.
365 		(struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_setblocklength()
369 	status = sdio_set_block_size(dev->pfunction, length);  in rsi_setblocklength()
370 	dev->pfunction->max_blksize = 256;  in rsi_setblocklength()
371 	adapter->block_size = dev->pfunction->max_blksize;  in rsi_setblocklength()
379  * rsi_setupcard() - This function queries and sets the card's features.
382  * Return: status: 0 on success, -1 on failure.
387 		(struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_setupcard()
392 	dev->tx_blk_size = 256;  in rsi_setupcard()
393 	status = rsi_setblocklength(adapter, dev->tx_blk_size);  in rsi_setupcard()
401  * rsi_sdio_read_register() - This function reads one byte of information
407  * Return: 0 on success, -1 on failure.
414 		(struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_sdio_read_register()
418 	if (likely(dev->sdio_irq_task != current))  in rsi_sdio_read_register()
419 		sdio_claim_host(dev->pfunction);  in rsi_sdio_read_register()
422 		*data = sdio_f0_readb(dev->pfunction, addr, &status);  in rsi_sdio_read_register()
424 		*data = sdio_readb(dev->pfunction, addr, &status);  in rsi_sdio_read_register()
426 	if (likely(dev->sdio_irq_task != current))  in rsi_sdio_read_register()
427 		sdio_release_host(dev->pfunction);  in rsi_sdio_read_register()
433  * rsi_sdio_write_register() - This function writes one byte of information
440  * Return: 0 on success, -1 on failure.
448 		(struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_sdio_write_register()
451 	if (likely(dev->sdio_irq_task != current))  in rsi_sdio_write_register()
452 		sdio_claim_host(dev->pfunction);  in rsi_sdio_write_register()
455 		sdio_f0_writeb(dev->pfunction, *data, addr, &status);  in rsi_sdio_write_register()
457 		sdio_writeb(dev->pfunction, *data, addr, &status);  in rsi_sdio_write_register()
459 	if (likely(dev->sdio_irq_task != current))  in rsi_sdio_write_register()
460 		sdio_release_host(dev->pfunction);  in rsi_sdio_write_register()
466  * rsi_sdio_ack_intr() - This function acks the interrupt received.
487  * rsi_sdio_read_register_multiple() - This function read multiple bytes of
494  * Return: 0 on success, -1 on failure.
502 		(struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_sdio_read_register_multiple()
505 	if (likely(dev->sdio_irq_task != current))  in rsi_sdio_read_register_multiple()
506 		sdio_claim_host(dev->pfunction);  in rsi_sdio_read_register_multiple()
508 	status =  sdio_readsb(dev->pfunction, data, addr, count);  in rsi_sdio_read_register_multiple()
510 	if (likely(dev->sdio_irq_task != current))  in rsi_sdio_read_register_multiple()
511 		sdio_release_host(dev->pfunction);  in rsi_sdio_read_register_multiple()
519  * rsi_sdio_write_register_multiple() - This function writes multiple bytes of
526  * Return: 0 on success, -1 on failure.
534 		(struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_sdio_write_register_multiple()
537 	if (dev->write_fail > 1) {  in rsi_sdio_write_register_multiple()
540 	} else if (dev->write_fail == 1) {  in rsi_sdio_write_register_multiple()
546 		dev->write_fail++;  in rsi_sdio_write_register_multiple()
549 	if (likely(dev->sdio_irq_task != current))  in rsi_sdio_write_register_multiple()
550 		sdio_claim_host(dev->pfunction);  in rsi_sdio_write_register_multiple()
552 	status = sdio_writesb(dev->pfunction, addr, data, count);  in rsi_sdio_write_register_multiple()
554 	if (likely(dev->sdio_irq_task != current))  in rsi_sdio_write_register_multiple()
555 		sdio_release_host(dev->pfunction);  in rsi_sdio_write_register_multiple()
560 		dev->write_fail = 2;  in rsi_sdio_write_register_multiple()
562 		memcpy(dev->prev_desc, data, FRAME_DESC_SZ);  in rsi_sdio_write_register_multiple()
586 		return -ENOMEM;  in rsi_sdio_load_data_master_write()
657 		return -ENOMEM;  in rsi_sdio_master_reg_read()
719 		return -ENOMEM;  in rsi_sdio_master_reg_write()
739 		return -EIO;  in rsi_sdio_master_reg_write()
757  * rsi_sdio_host_intf_write_pkt() - This function writes the packet to device.
762  * Return: 0 on success, -1 on failure.
769 		(struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_sdio_host_intf_write_pkt()
770 	u32 block_size = dev->tx_blk_size;  in rsi_sdio_host_intf_write_pkt()
799  * rsi_sdio_host_intf_read_pkt() - This function reads the packet
805  * Return: 0 on success, -1 on failure.
811 	int status = -EINVAL;  in rsi_sdio_host_intf_read_pkt()
830  * rsi_init_sdio_interface() - This function does init specific to SDIO.
835  * Return: 0 on success, -1 on failure.
845 		return -ENOMEM;  in rsi_init_sdio_interface()
847 	adapter->rsi_dev = rsi_91x_dev;  in rsi_init_sdio_interface()
851 	pfunction->enable_timeout = 100;  in rsi_init_sdio_interface()
861 	rsi_91x_dev->pfunction = pfunction;  in rsi_init_sdio_interface()
862 	adapter->device = &pfunction->dev;  in rsi_init_sdio_interface()
881 	adapter->determine_event_timeout = rsi_sdio_determine_event_timeout;  in rsi_init_sdio_interface()
882 	adapter->check_hw_queue_status = rsi_sdio_check_buffer_status;  in rsi_init_sdio_interface()
885 	adapter->num_debugfs_entries = MAX_DEBUGFS_ENTRIES;  in rsi_init_sdio_interface()
896 	struct rsi_91x_sdiodev *sdev = adapter->rsi_dev;  in rsi_sdio_reinit_device()
897 	struct sdio_func *pfunction = sdev->pfunction;  in rsi_sdio_reinit_device()
901 		skb_queue_purge(&adapter->priv->tx_queue[ii]);  in rsi_sdio_reinit_device()
928 		return -ENOMEM;  in rsi_sdio_ta_reset()
965 		status = -EINVAL;  in rsi_sdio_ta_reset()
1005  * rsi_probe() - This function is called by kernel when the driver provided
1018 	int status = -EINVAL;  in rsi_probe()
1026 		return -EINVAL;  in rsi_probe()
1028 	adapter->rsi_host_intf = RSI_HOST_INTF_SDIO;  in rsi_probe()
1029 	adapter->host_intf_ops = &sdio_host_intf_ops;  in rsi_probe()
1034 		status = -EIO;  in rsi_probe()
1038 	if (pfunction->device == SDIO_DEVICE_ID_RSI_9113) {  in rsi_probe()
1040 		adapter->device_model = RSI_DEV_9113;  in rsi_probe()
1041 	} else  if (pfunction->device == SDIO_DEVICE_ID_RSI_9116) {  in rsi_probe()
1043 		adapter->device_model = RSI_DEV_9116;  in rsi_probe()
1047 			pfunction->device);  in rsi_probe()
1051 	sdev = (struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_probe()
1052 	rsi_init_event(&sdev->rx_thread.event);  in rsi_probe()
1053 	status = rsi_create_kthread(adapter->priv, &sdev->rx_thread,  in rsi_probe()
1054 				    rsi_sdio_rx_thread, "SDIO-RX-Thread");  in rsi_probe()
1064 		status = -EIO;  in rsi_probe()
1072 		status = -EINVAL;  in rsi_probe()
1079 		status = -EIO;  in rsi_probe()
1083 	adapter->priv->hibernate_resume = false;  in rsi_probe()
1084 	adapter->priv->reinit_hw = false;  in rsi_probe()
1092 	rsi_kill_thread(&sdev->rx_thread);  in rsi_probe()
1113 				  ((len_in_bits - 1) | RSI_GSPI_TRIG), 2);  in ulp_read_write()
1117 /*This function resets and re-initializes the chip.*/
1147 	/* Put Thread-Arch processor on hold */  in rsi_reset_chip()
1160 			"%s: Unable to hold Thread-Arch processor threads\n",  in rsi_reset_chip()
1165 	/* This msleep will ensure Thread-Arch processor to go to hold  in rsi_reset_chip()
1169 	if (adapter->device_model != RSI_DEV_9116) {  in rsi_reset_chip()
1214  * rsi_disconnect() - This function performs the reverse of the probe function.
1227 	dev = (struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_disconnect()
1229 	rsi_kill_thread(&dev->rx_thread);  in rsi_disconnect()
1238 	if (IS_ENABLED(CONFIG_RSI_COEX) && adapter->priv->coex_mode > 1 &&  in rsi_disconnect()
1239 	    adapter->priv->bt_adapter) {  in rsi_disconnect()
1240 		rsi_bt_ops.detach(adapter->priv->bt_adapter);  in rsi_disconnect()
1241 		adapter->priv->bt_adapter = NULL;  in rsi_disconnect()
1247 	/* Resetting to take care of the case, where-in driver is re-loaded */  in rsi_disconnect()
1252 	dev->write_fail = 2;  in rsi_disconnect()
1262 		(struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_set_sdio_pm_caps()
1263 	struct sdio_func *func = dev->pfunction;  in rsi_set_sdio_pm_caps()
1286 	} while ((isr_status) && (jiffies_to_msecs(jiffies - t1) < 20));  in rsi_sdio_disable_interrupts()
1290 	ret = rsi_cmd52readbyte(pfunc->card, RSI_INT_ENABLE_REGISTER, &data);  in rsi_sdio_disable_interrupts()
1299 	ret = rsi_cmd52writebyte(pfunc->card, RSI_INT_ENABLE_REGISTER, data);  in rsi_sdio_disable_interrupts()
1306 	ret = rsi_cmd52readbyte(pfunc->card, RSI_INT_ENABLE_REGISTER, &data);  in rsi_sdio_disable_interrupts()
1325 	struct rsi_common *common = adapter->priv;  in rsi_sdio_enable_interrupts()
1328 	ret = rsi_cmd52readbyte(pfunc->card, RSI_INT_ENABLE_REGISTER, &data);  in rsi_sdio_enable_interrupts()
1337 	ret = rsi_cmd52writebyte(pfunc->card, RSI_INT_ENABLE_REGISTER, data);  in rsi_sdio_enable_interrupts()
1345 	if ((common->wow_flags & RSI_WOW_ENABLED) &&  in rsi_sdio_enable_interrupts()
1346 	    (common->wow_flags & RSI_WOW_NO_CONNECTION))  in rsi_sdio_enable_interrupts()
1350 	ret = rsi_cmd52readbyte(pfunc->card, RSI_INT_ENABLE_REGISTER, &data);  in rsi_sdio_enable_interrupts()
1372 		return -ENODEV;  in rsi_suspend()
1374 	common = adapter->priv;  in rsi_suspend()
1381 	common->fsm_state = FSM_CARD_NOT_READY;  in rsi_suspend()
1390 	struct rsi_common *common = adapter->priv;  in rsi_resume()
1392 	common->fsm_state = FSM_MAC_INIT_DONE;  in rsi_resume()
1410 		return -ENODEV;  in rsi_freeze()
1412 	common = adapter->priv;  in rsi_freeze()
1413 	sdev = (struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_freeze()
1415 	if ((common->wow_flags & RSI_WOW_ENABLED) &&  in rsi_freeze()
1416 	    (common->wow_flags & RSI_WOW_NO_CONNECTION))  in rsi_freeze()
1420 	if (IS_ENABLED(CONFIG_RSI_COEX) && common->coex_mode > 1 &&  in rsi_freeze()
1421 	    common->bt_adapter) {  in rsi_freeze()
1422 		rsi_bt_ops.detach(common->bt_adapter);  in rsi_freeze()
1423 		common->bt_adapter = NULL;  in rsi_freeze()
1428 	if (sdev->write_fail)  in rsi_freeze()
1444 	struct rsi_common *common = adapter->priv;  in rsi_thaw()
1448 	common->hibernate_resume = true;  in rsi_thaw()
1449 	common->fsm_state = FSM_CARD_NOT_READY;  in rsi_thaw()
1450 	common->iface_down = true;  in rsi_thaw()
1464 		(struct rsi_91x_sdiodev *)adapter->rsi_dev;  in rsi_shutdown()
1465 	struct ieee80211_hw *hw = adapter->hw;  in rsi_shutdown()
1470 		struct cfg80211_wowlan *wowlan = hw->wiphy->wowlan_config;  in rsi_shutdown()
1476 	if (IS_ENABLED(CONFIG_RSI_COEX) && adapter->priv->coex_mode > 1 &&  in rsi_shutdown()
1477 	    adapter->priv->bt_adapter) {  in rsi_shutdown()
1478 		rsi_bt_ops.detach(adapter->priv->bt_adapter);  in rsi_shutdown()
1479 		adapter->priv->bt_adapter = NULL;  in rsi_shutdown()
1482 	rsi_sdio_disable_interrupts(sdev->pfunction);  in rsi_shutdown()
1484 	if (sdev->write_fail)  in rsi_shutdown()
1497 	struct rsi_common *common = adapter->priv;  in rsi_restore()
1500 	common->hibernate_resume = true;  in rsi_restore()
1501 	common->fsm_state = FSM_FW_NOT_LOADED;  in rsi_restore()
1502 	common->iface_down = true;  in rsi_restore()
1504 	adapter->sc_nvifs = 0;  in rsi_restore()
1505 	adapter->ps_state = PS_NONE;  in rsi_restore()
1507 	common->wow_flags = 0;  in rsi_restore()
1508 	common->iface_down = false;  in rsi_restore()
1530 	.name       = "RSI-SDIO WLAN",
1543  * rsi_module_init() - This function registers the sdio module.
1558  * rsi_module_exit() - This function unregisters the sdio module.