1 // SPDX-License-Identifier: GPL-2.0
3 * Driver for KeyStream, KS7010 based SDIO cards.
5 * Copyright (C) 2006-2008 KeyStream Corp.
6 * Copyright (C) 2009 Renesas Technology Corp.
7 * Copyright (C) 2016 Sang Engineering, Wolfram Sang
10 #include <linux/atomic.h>
11 #include <linux/firmware.h>
12 #include <linux/jiffies.h>
13 #include <linux/mmc/card.h>
14 #include <linux/mmc/sdio_func.h>
15 #include <linux/module.h>
16 #include <linux/workqueue.h>
18 #include "ks_hostif.h"
20 #define ROM_FILE "ks7010sd.rom"
22 /* SDIO KeyStream vendor and device */
23 #define SDIO_VENDOR_ID_KS_CODE_A 0x005b
24 #define SDIO_VENDOR_ID_KS_CODE_B 0x0023
26 /* Older sources suggest earlier versions were named 7910 or 79xx */
27 #define SDIO_DEVICE_ID_KS_7010 0x7910
29 /* Read/Write Status Register */
30 #define READ_STATUS_REG 0x000000
31 #define WRITE_STATUS_REG 0x00000C
32 enum reg_status_type {
37 /* Read Index Register */
38 #define READ_INDEX_REG 0x000004
40 /* Read Data Size Register */
41 #define READ_DATA_SIZE_REG 0x000008
43 /* Write Index Register */
44 #define WRITE_INDEX_REG 0x000010
47 * Write Status/Read Data Size Register
48 * for network packet (less than 2048 bytes data)
50 #define WSTATUS_RSIZE_REG 0x000014
52 /* Write Status Register value */
53 #define WSTATUS_MASK 0x80
55 /* Read Data Size Register value [10:4] */
56 #define RSIZE_MASK 0x7F
58 /* ARM to SD interrupt Enable */
59 #define INT_ENABLE_REG 0x000020
60 /* ARM to SD interrupt Pending */
61 #define INT_PENDING_REG 0x000024
63 #define INT_GCR_B BIT(7)
64 #define INT_GCR_A BIT(6)
65 #define INT_WRITE_STATUS BIT(5)
66 #define INT_WRITE_INDEX BIT(4)
67 #define INT_WRITE_SIZE BIT(3)
68 #define INT_READ_STATUS BIT(2)
69 #define INT_READ_INDEX BIT(1)
70 #define INT_READ_SIZE BIT(0)
72 /* General Communication Register A */
73 #define GCR_A_REG 0x000028
80 /* General Communication Register B */
81 #define GCR_B_REG 0x00002C
88 #define WAKEUP_REG 0x008018
89 #define WAKEUP_REQ 0x5a
91 /* AHB Data Window 0x010000-0x01FFFF */
92 #define DATA_WINDOW 0x010000
93 #define WINDOW_SIZE (64 * 1024)
95 #define KS7010_IRAM_ADDRESS 0x06000000
97 #define KS7010_IO_BLOCK_SIZE 512
100 * struct ks_sdio_card - SDIO device data.
102 * Structure is used as the &struct sdio_func private data.
104 * @func: Pointer to the SDIO function device.
105 * @priv: Pointer to the &struct net_device private data.
107 struct ks_sdio_card {
108 struct sdio_func *func;
109 struct ks_wlan_private *priv;
112 static struct sdio_func *ks7010_to_func(struct ks_wlan_private *priv)
114 struct ks_sdio_card *ks_sdio = priv->if_hw;
116 return ks_sdio->func;
119 /* Read single byte from device address into byte (CMD52) */
120 static int ks7010_sdio_readb(struct ks_wlan_private *priv,
121 u32 address, u8 *byte)
123 struct sdio_func *func = ks7010_to_func(priv);
126 *byte = sdio_readb(func, address, &ret);
131 /* Read length bytes from device address into buffer (CMD53) */
132 static int ks7010_sdio_read(struct ks_wlan_private *priv, u32 address,
133 u8 *buffer, unsigned int length)
135 struct sdio_func *func = ks7010_to_func(priv);
137 return sdio_memcpy_fromio(func, buffer, address, length);
140 /* Write single byte to device address (CMD52) */
141 static int ks7010_sdio_writeb(struct ks_wlan_private *priv,
142 u32 address, u8 byte)
144 struct sdio_func *func = ks7010_to_func(priv);
147 sdio_writeb(func, byte, address, &ret);
152 /* Write length bytes to device address from buffer (CMD53) */
153 static int ks7010_sdio_write(struct ks_wlan_private *priv, u32 address,
154 u8 *buffer, unsigned int length)
156 struct sdio_func *func = ks7010_to_func(priv);
158 return sdio_memcpy_toio(func, address, buffer, length);
161 static void ks_wlan_hw_sleep_doze_request(struct ks_wlan_private *priv)
166 atomic_set(&priv->sleepstatus.doze_request, 0);
168 if (atomic_read(&priv->sleepstatus.status) == 0) {
169 ret = ks7010_sdio_writeb(priv, GCR_B_REG, GCR_B_DOZE);
171 netdev_err(priv->net_dev, "write GCR_B_REG\n");
174 atomic_set(&priv->sleepstatus.status, 1);
175 priv->last_doze = jiffies;
179 priv->sleep_mode = atomic_read(&priv->sleepstatus.status);
182 static void ks_wlan_hw_sleep_wakeup_request(struct ks_wlan_private *priv)
187 atomic_set(&priv->sleepstatus.wakeup_request, 0);
189 if (atomic_read(&priv->sleepstatus.status) == 1) {
190 ret = ks7010_sdio_writeb(priv, WAKEUP_REG, WAKEUP_REQ);
192 netdev_err(priv->net_dev, "write WAKEUP_REG\n");
195 atomic_set(&priv->sleepstatus.status, 0);
196 priv->last_wakeup = jiffies;
197 ++priv->wakeup_count;
201 priv->sleep_mode = atomic_read(&priv->sleepstatus.status);
204 void ks_wlan_hw_wakeup_request(struct ks_wlan_private *priv)
208 if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) {
209 ret = ks7010_sdio_writeb(priv, WAKEUP_REG, WAKEUP_REQ);
211 netdev_err(priv->net_dev, "write WAKEUP_REG\n");
213 priv->last_wakeup = jiffies;
214 ++priv->wakeup_count;
218 static void _ks_wlan_hw_power_save(struct ks_wlan_private *priv)
223 if (priv->reg.power_mgmt == POWER_MGMT_ACTIVE)
226 if (priv->reg.operation_mode != MODE_INFRASTRUCTURE)
229 if (!is_connect_status(priv->connect_status))
232 if (priv->dev_state != DEVICE_STATE_SLEEP)
235 if (atomic_read(&priv->psstatus.status) == PS_SNOOZE)
238 netdev_dbg(priv->net_dev,
240 "- psstatus.status = %d\n"
241 "- psstatus.confirm_wait = %d\n"
242 "- psstatus.snooze_guard = %d\n"
243 "- txq_count = %d\n",
244 atomic_read(&priv->psstatus.status),
245 atomic_read(&priv->psstatus.confirm_wait),
246 atomic_read(&priv->psstatus.snooze_guard),
249 if (atomic_read(&priv->psstatus.confirm_wait) ||
250 atomic_read(&priv->psstatus.snooze_guard) ||
251 txq_has_space(priv)) {
252 queue_delayed_work(priv->wq, &priv->rw_dwork, 0);
256 ret = ks7010_sdio_readb(priv, INT_PENDING_REG, &byte);
258 netdev_err(priv->net_dev, "read INT_PENDING_REG\n");
259 goto queue_delayed_work;
262 goto queue_delayed_work;
264 ret = ks7010_sdio_writeb(priv, GCR_B_REG, GCR_B_DOZE);
266 netdev_err(priv->net_dev, "write GCR_B_REG\n");
267 goto queue_delayed_work;
269 atomic_set(&priv->psstatus.status, PS_SNOOZE);
274 queue_delayed_work(priv->wq, &priv->rw_dwork, 1);
277 int ks_wlan_hw_power_save(struct ks_wlan_private *priv)
279 queue_delayed_work(priv->wq, &priv->rw_dwork, 1);
283 static int enqueue_txdev(struct ks_wlan_private *priv, unsigned char *p,
285 void (*complete_handler)(struct ks_wlan_private *priv,
286 struct sk_buff *skb),
289 struct tx_device_buffer *sp;
292 if (priv->dev_state < DEVICE_STATE_BOOT) {
297 if ((TX_DEVICE_BUFF_SIZE - 1) <= txq_count(priv)) {
298 netdev_err(priv->net_dev, "tx buffer overflow\n");
303 sp = &priv->tx_dev.tx_dev_buff[priv->tx_dev.qtail];
306 sp->complete_handler = complete_handler;
314 if (complete_handler)
315 (*complete_handler)(priv, skb);
321 static int write_to_device(struct ks_wlan_private *priv, u8 *buffer,
324 struct hostif_hdr *hdr;
327 hdr = (struct hostif_hdr *)buffer;
329 if (le16_to_cpu(hdr->event) < HIF_DATA_REQ ||
330 le16_to_cpu(hdr->event) > HIF_REQ_MAX) {
331 netdev_err(priv->net_dev, "unknown event=%04X\n", hdr->event);
335 ret = ks7010_sdio_write(priv, DATA_WINDOW, buffer, size);
337 netdev_err(priv->net_dev, "write DATA_WINDOW\n");
341 ret = ks7010_sdio_writeb(priv, WRITE_STATUS_REG, REG_STATUS_BUSY);
343 netdev_err(priv->net_dev, "write WRITE_STATUS_REG\n");
350 static void tx_device_task(struct ks_wlan_private *priv)
352 struct tx_device_buffer *sp;
355 if (!txq_has_space(priv) ||
356 atomic_read(&priv->psstatus.status) == PS_SNOOZE)
359 sp = &priv->tx_dev.tx_dev_buff[priv->tx_dev.qhead];
360 if (priv->dev_state >= DEVICE_STATE_BOOT) {
361 ret = write_to_device(priv, sp->sendp, sp->size);
363 netdev_err(priv->net_dev,
364 "write_to_device error !!(%d)\n", ret);
365 queue_delayed_work(priv->wq, &priv->rw_dwork, 1);
370 if (sp->complete_handler) /* TX Complete */
371 (*sp->complete_handler)(priv, sp->skb);
374 if (txq_has_space(priv))
375 queue_delayed_work(priv->wq, &priv->rw_dwork, 0);
378 int ks_wlan_hw_tx(struct ks_wlan_private *priv, void *p, unsigned long size,
379 void (*complete_handler)(struct ks_wlan_private *priv,
380 struct sk_buff *skb),
384 struct hostif_hdr *hdr;
386 hdr = (struct hostif_hdr *)p;
388 if (le16_to_cpu(hdr->event) < HIF_DATA_REQ ||
389 le16_to_cpu(hdr->event) > HIF_REQ_MAX) {
390 netdev_err(priv->net_dev, "unknown event=%04X\n", hdr->event);
394 /* add event to hostt buffer */
395 priv->hostt.buff[priv->hostt.qtail] = le16_to_cpu(hdr->event);
396 priv->hostt.qtail = (priv->hostt.qtail + 1) % SME_EVENT_BUFF_SIZE;
398 spin_lock(&priv->tx_dev.tx_dev_lock);
399 result = enqueue_txdev(priv, p, size, complete_handler, skb);
400 spin_unlock(&priv->tx_dev.tx_dev_lock);
402 if (txq_has_space(priv))
403 queue_delayed_work(priv->wq, &priv->rw_dwork, 0);
408 static void rx_event_task(unsigned long dev)
410 struct ks_wlan_private *priv = (struct ks_wlan_private *)dev;
411 struct rx_device_buffer *rp;
413 if (rxq_has_space(priv) && priv->dev_state >= DEVICE_STATE_BOOT) {
414 rp = &priv->rx_dev.rx_dev_buff[priv->rx_dev.qhead];
415 hostif_receive(priv, rp->data, rp->size);
418 if (rxq_has_space(priv))
419 tasklet_schedule(&priv->rx_bh_task);
423 static void ks_wlan_hw_rx(struct ks_wlan_private *priv, size_t size)
426 struct rx_device_buffer *rx_buffer;
427 struct hostif_hdr *hdr;
431 if (rxq_count(priv) >= (RX_DEVICE_BUFF_SIZE - 1)) {
432 netdev_err(priv->net_dev, "rx buffer overflow\n");
435 rx_buffer = &priv->rx_dev.rx_dev_buff[priv->rx_dev.qtail];
437 ret = ks7010_sdio_read(priv, DATA_WINDOW, &rx_buffer->data[0],
438 hif_align_size(size));
443 if (size > 2046 || size == 0) {
445 print_hex_dump_bytes("INVALID DATA dump: ",
447 rx_buffer->data, 32);
449 ret = ks7010_sdio_writeb(priv, READ_STATUS_REG, REG_STATUS_IDLE);
451 netdev_err(priv->net_dev, "write READ_STATUS_REG\n");
453 /* length check fail */
457 hdr = (struct hostif_hdr *)&rx_buffer->data[0];
458 rx_buffer->size = le16_to_cpu(hdr->size) + sizeof(hdr->size);
459 event = le16_to_cpu(hdr->event);
462 ret = ks7010_sdio_writeb(priv, READ_STATUS_REG, REG_STATUS_IDLE);
464 netdev_err(priv->net_dev, "write READ_STATUS_REG\n");
466 if (atomic_read(&priv->psstatus.confirm_wait) && is_hif_conf(event)) {
467 netdev_dbg(priv->net_dev, "IS_HIF_CONF true !!\n");
468 atomic_dec(&priv->psstatus.confirm_wait);
471 tasklet_schedule(&priv->rx_bh_task);
474 static void ks7010_rw_function(struct work_struct *work)
476 struct ks_wlan_private *priv = container_of(work,
477 struct ks_wlan_private,
479 struct sdio_func *func = ks7010_to_func(priv);
483 /* wait after DOZE */
484 if (time_after(priv->last_doze + msecs_to_jiffies(30), jiffies)) {
485 netdev_dbg(priv->net_dev, "wait after DOZE\n");
486 queue_delayed_work(priv->wq, &priv->rw_dwork, 1);
490 /* wait after WAKEUP */
491 while (time_after(priv->last_wakeup + msecs_to_jiffies(30), jiffies)) {
492 netdev_dbg(priv->net_dev, "wait after WAKEUP\n");
493 dev_info(&func->dev, "wake: %lu %lu\n",
494 priv->last_wakeup + msecs_to_jiffies(30), jiffies);
498 sdio_claim_host(func);
500 /* power save wakeup */
501 if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) {
502 if (txq_has_space(priv)) {
503 ks_wlan_hw_wakeup_request(priv);
504 queue_delayed_work(priv->wq, &priv->rw_dwork, 1);
509 /* sleep mode doze */
510 if (atomic_read(&priv->sleepstatus.doze_request) == 1) {
511 ks_wlan_hw_sleep_doze_request(priv);
514 /* sleep mode wakeup */
515 if (atomic_read(&priv->sleepstatus.wakeup_request) == 1) {
516 ks_wlan_hw_sleep_wakeup_request(priv);
520 /* read (WriteStatus/ReadDataSize FN1:00_0014) */
521 ret = ks7010_sdio_readb(priv, WSTATUS_RSIZE_REG, &byte);
523 netdev_err(priv->net_dev, "read WSTATUS_RSIZE_REG psstatus=%d\n",
524 atomic_read(&priv->psstatus.status));
528 if (byte & RSIZE_MASK) { /* Read schedule */
529 ks_wlan_hw_rx(priv, (size_t)((byte & RSIZE_MASK) << 4));
531 if ((byte & WSTATUS_MASK))
532 tx_device_task(priv);
534 _ks_wlan_hw_power_save(priv);
537 sdio_release_host(func);
540 static void ks_sdio_interrupt(struct sdio_func *func)
543 struct ks_sdio_card *card;
544 struct ks_wlan_private *priv;
545 u8 status, rsize, byte;
547 card = sdio_get_drvdata(func);
550 if (priv->dev_state < DEVICE_STATE_BOOT)
551 goto queue_delayed_work;
553 ret = ks7010_sdio_readb(priv, INT_PENDING_REG, &status);
555 netdev_err(priv->net_dev, "read INT_PENDING_REG\n");
556 goto queue_delayed_work;
559 /* schedule task for interrupt status */
560 /* bit7 -> Write General Communication B register */
561 /* read (General Communication B register) */
562 /* bit5 -> Write Status Idle */
563 /* bit2 -> Read Status Busy */
564 if (status & INT_GCR_B ||
565 atomic_read(&priv->psstatus.status) == PS_SNOOZE) {
566 ret = ks7010_sdio_readb(priv, GCR_B_REG, &byte);
568 netdev_err(priv->net_dev, "read GCR_B_REG\n");
569 goto queue_delayed_work;
571 if (byte == GCR_B_ACTIVE) {
572 if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) {
573 atomic_set(&priv->psstatus.status, PS_WAKEUP);
574 priv->wakeup_count = 0;
576 complete(&priv->psstatus.wakeup_wait);
581 /* read (WriteStatus/ReadDataSize FN1:00_0014) */
582 ret = ks7010_sdio_readb(priv, WSTATUS_RSIZE_REG, &byte);
584 netdev_err(priv->net_dev, "read WSTATUS_RSIZE_REG\n");
585 goto queue_delayed_work;
587 rsize = byte & RSIZE_MASK;
588 if (rsize != 0) /* Read schedule */
589 ks_wlan_hw_rx(priv, (size_t)(rsize << 4));
591 if (byte & WSTATUS_MASK) {
592 if (atomic_read(&priv->psstatus.status) == PS_SNOOZE) {
593 if (txq_has_space(priv)) {
594 ks_wlan_hw_wakeup_request(priv);
595 queue_delayed_work(priv->wq,
600 tx_device_task(priv);
606 queue_delayed_work(priv->wq, &priv->rw_dwork, 0);
609 static int trx_device_init(struct ks_wlan_private *priv)
611 priv->tx_dev.qhead = 0;
612 priv->tx_dev.qtail = 0;
614 priv->rx_dev.qhead = 0;
615 priv->rx_dev.qtail = 0;
617 spin_lock_init(&priv->tx_dev.tx_dev_lock);
618 spin_lock_init(&priv->rx_dev.rx_dev_lock);
620 tasklet_init(&priv->rx_bh_task, rx_event_task, (unsigned long)priv);
625 static void trx_device_exit(struct ks_wlan_private *priv)
627 struct tx_device_buffer *sp;
629 /* tx buffer clear */
630 while (txq_has_space(priv)) {
631 sp = &priv->tx_dev.tx_dev_buff[priv->tx_dev.qhead];
633 if (sp->complete_handler) /* TX Complete */
634 (*sp->complete_handler)(priv, sp->skb);
638 tasklet_kill(&priv->rx_bh_task);
641 static int ks7010_sdio_update_index(struct ks_wlan_private *priv, u32 index)
644 unsigned char *data_buf;
646 data_buf = kmemdup(&index, sizeof(u32), GFP_KERNEL);
650 ret = ks7010_sdio_write(priv, WRITE_INDEX_REG, data_buf, sizeof(index));
652 goto err_free_data_buf;
654 ret = ks7010_sdio_write(priv, READ_INDEX_REG, data_buf, sizeof(index));
656 goto err_free_data_buf;
666 #define ROM_BUFF_SIZE (64 * 1024)
667 static int ks7010_sdio_data_compare(struct ks_wlan_private *priv, u32 address,
668 u8 *data, unsigned int size)
673 read_buf = kmalloc(ROM_BUFF_SIZE, GFP_KERNEL);
677 ret = ks7010_sdio_read(priv, address, read_buf, size);
679 goto err_free_read_buf;
681 if (memcmp(data, read_buf, size) != 0) {
683 netdev_err(priv->net_dev, "data compare error (%d)\n", ret);
684 goto err_free_read_buf;
695 static int ks7010_copy_firmware(struct ks_wlan_private *priv,
696 const struct firmware *fw_entry)
705 rom_buf = kmalloc(ROM_BUFF_SIZE, GFP_KERNEL);
709 length = fw_entry->size;
712 if (length >= ROM_BUFF_SIZE) {
713 size = ROM_BUFF_SIZE;
714 length = length - ROM_BUFF_SIZE;
722 memcpy(rom_buf, fw_entry->data + n, size);
725 ret = ks7010_sdio_update_index(priv,
726 KS7010_IRAM_ADDRESS + offset);
730 ret = ks7010_sdio_write(priv, DATA_WINDOW, rom_buf, size);
734 ret = ks7010_sdio_data_compare(priv,
735 DATA_WINDOW, rom_buf, size);
743 ret = ks7010_sdio_writeb(priv, GCR_A_REG, GCR_A_REMAP);
750 static int ks7010_upload_firmware(struct ks_sdio_card *card)
752 struct ks_wlan_private *priv = card->priv;
753 struct sdio_func *func = ks7010_to_func(priv);
757 const struct firmware *fw_entry = NULL;
759 sdio_claim_host(func);
761 /* Firmware running ? */
762 ret = ks7010_sdio_readb(priv, GCR_A_REG, &byte);
765 if (byte == GCR_A_RUN) {
766 netdev_dbg(priv->net_dev, "MAC firmware running ...\n");
771 ret = request_firmware(&fw_entry, ROM_FILE,
776 ret = ks7010_copy_firmware(priv, fw_entry);
778 goto release_firmware;
780 /* Firmware running check */
781 for (n = 0; n < 50; ++n) {
782 usleep_range(10000, 11000); /* wait_ms(10); */
783 ret = ks7010_sdio_readb(priv, GCR_A_REG, &byte);
785 goto release_firmware;
787 if (byte == GCR_A_RUN)
791 netdev_err(priv->net_dev, "firmware can't start\n");
793 goto release_firmware;
799 release_firmware(fw_entry);
801 sdio_release_host(func);
806 static void ks7010_sme_enqueue_events(struct ks_wlan_private *priv)
808 static const u16 init_events[] = {
809 SME_GET_EEPROM_CKSUM, SME_STOP_REQUEST,
810 SME_RTS_THRESHOLD_REQUEST, SME_FRAGMENTATION_THRESHOLD_REQUEST,
811 SME_WEP_INDEX_REQUEST, SME_WEP_KEY1_REQUEST,
812 SME_WEP_KEY2_REQUEST, SME_WEP_KEY3_REQUEST,
813 SME_WEP_KEY4_REQUEST, SME_WEP_FLAG_REQUEST,
814 SME_RSN_ENABLED_REQUEST, SME_MODE_SET_REQUEST,
819 for (ev = 0; ev < ARRAY_SIZE(init_events); ev++)
820 hostif_sme_enqueue(priv, init_events[ev]);
823 static void ks7010_card_init(struct ks_wlan_private *priv)
825 init_completion(&priv->confirm_wait);
827 /* get mac address & firmware version */
828 hostif_sme_enqueue(priv, SME_START);
830 if (!wait_for_completion_interruptible_timeout
831 (&priv->confirm_wait, 5 * HZ)) {
832 netdev_dbg(priv->net_dev, "wait time out!! SME_START\n");
835 if (priv->mac_address_valid && priv->version_size != 0)
836 priv->dev_state = DEVICE_STATE_PREINIT;
838 ks7010_sme_enqueue_events(priv);
840 if (!wait_for_completion_interruptible_timeout
841 (&priv->confirm_wait, 5 * HZ)) {
842 netdev_dbg(priv->net_dev, "wait time out!! wireless parameter set\n");
845 if (priv->dev_state >= DEVICE_STATE_PREINIT) {
846 netdev_dbg(priv->net_dev, "DEVICE READY!!\n");
847 priv->dev_state = DEVICE_STATE_READY;
851 static void ks7010_init_defaults(struct ks_wlan_private *priv)
853 priv->reg.tx_rate = TX_RATE_AUTO;
854 priv->reg.preamble = LONG_PREAMBLE;
855 priv->reg.power_mgmt = POWER_MGMT_ACTIVE;
856 priv->reg.scan_type = ACTIVE_SCAN;
857 priv->reg.beacon_lost_count = 20;
858 priv->reg.rts = 2347UL;
859 priv->reg.fragment = 2346UL;
860 priv->reg.phy_type = D_11BG_COMPATIBLE_MODE;
861 priv->reg.cts_mode = CTS_MODE_FALSE;
862 priv->reg.rate_set.body[11] = TX_RATE_54M;
863 priv->reg.rate_set.body[10] = TX_RATE_48M;
864 priv->reg.rate_set.body[9] = TX_RATE_36M;
865 priv->reg.rate_set.body[8] = TX_RATE_18M;
866 priv->reg.rate_set.body[7] = TX_RATE_9M;
867 priv->reg.rate_set.body[6] = TX_RATE_24M | BASIC_RATE;
868 priv->reg.rate_set.body[5] = TX_RATE_12M | BASIC_RATE;
869 priv->reg.rate_set.body[4] = TX_RATE_6M | BASIC_RATE;
870 priv->reg.rate_set.body[3] = TX_RATE_11M | BASIC_RATE;
871 priv->reg.rate_set.body[2] = TX_RATE_5M | BASIC_RATE;
872 priv->reg.rate_set.body[1] = TX_RATE_2M | BASIC_RATE;
873 priv->reg.rate_set.body[0] = TX_RATE_1M | BASIC_RATE;
874 priv->reg.tx_rate = TX_RATE_FULL_AUTO;
875 priv->reg.rate_set.size = 12;
878 static int ks7010_sdio_setup_irqs(struct sdio_func *func)
882 /* interrupt disable */
883 sdio_writeb(func, 0, INT_ENABLE_REG, &ret);
887 sdio_writeb(func, 0xff, INT_PENDING_REG, &ret);
891 /* setup interrupt handler */
892 ret = sdio_claim_irq(func, ks_sdio_interrupt);
898 static void ks7010_sdio_init_irqs(struct sdio_func *func,
899 struct ks_wlan_private *priv)
906 * clear Interrupt status write
907 * (ARMtoSD_InterruptPending FN1:00_0024)
909 sdio_claim_host(func);
910 ret = ks7010_sdio_writeb(priv, INT_PENDING_REG, 0xff);
911 sdio_release_host(func);
913 netdev_err(priv->net_dev, "write INT_PENDING_REG\n");
915 /* enable ks7010sdio interrupt */
916 byte = (INT_GCR_B | INT_READ_STATUS | INT_WRITE_STATUS);
917 sdio_claim_host(func);
918 ret = ks7010_sdio_writeb(priv, INT_ENABLE_REG, byte);
919 sdio_release_host(func);
921 netdev_err(priv->net_dev, "write INT_ENABLE_REG\n");
924 static void ks7010_private_init(struct ks_wlan_private *priv,
925 struct ks_sdio_card *card,
926 struct net_device *netdev)
928 /* private memory initialize */
931 priv->dev_state = DEVICE_STATE_PREBOOT;
932 priv->net_dev = netdev;
933 priv->firmware_version[0] = '\0';
934 priv->version_size = 0;
935 priv->last_doze = jiffies;
936 priv->last_wakeup = jiffies;
937 memset(&priv->nstats, 0, sizeof(priv->nstats));
938 memset(&priv->wstats, 0, sizeof(priv->wstats));
941 atomic_set(&priv->sleepstatus.doze_request, 0);
942 atomic_set(&priv->sleepstatus.wakeup_request, 0);
943 atomic_set(&priv->sleepstatus.wakeup_request, 0);
945 trx_device_init(priv);
947 ks_wlan_net_start(netdev);
948 ks7010_init_defaults(priv);
951 static int ks7010_sdio_probe(struct sdio_func *func,
952 const struct sdio_device_id *device)
954 struct ks_wlan_private *priv = NULL;
955 struct net_device *netdev = NULL;
956 struct ks_sdio_card *card;
959 card = kzalloc(sizeof(*card), GFP_KERNEL);
965 sdio_claim_host(func);
967 ret = sdio_set_block_size(func, KS7010_IO_BLOCK_SIZE);
971 dev_dbg(&card->func->dev, "multi_block=%d sdio_set_block_size()=%d %d\n",
972 func->card->cccr.multi_block, func->cur_blksize, ret);
974 ret = sdio_enable_func(func);
978 ret = ks7010_sdio_setup_irqs(func);
980 goto err_disable_func;
982 sdio_release_host(func);
984 sdio_set_drvdata(func, card);
986 dev_dbg(&card->func->dev, "class = 0x%X, vendor = 0x%X, device = 0x%X\n",
987 func->class, func->vendor, func->device);
989 /* private memory allocate */
990 netdev = alloc_etherdev(sizeof(*priv));
992 dev_err(&card->func->dev, "Unable to alloc new net device\n");
993 goto err_release_irq;
996 ret = dev_alloc_name(netdev, "wlan%d");
998 dev_err(&card->func->dev, "Couldn't get name!\n");
999 goto err_free_netdev;
1002 priv = netdev_priv(netdev);
1005 SET_NETDEV_DEV(netdev, &card->func->dev);
1007 ks7010_private_init(priv, card, netdev);
1009 ret = ks7010_upload_firmware(card);
1011 netdev_err(priv->net_dev,
1012 "firmware load failed !! ret = %d\n", ret);
1013 goto err_free_netdev;
1016 ks7010_sdio_init_irqs(func, priv);
1018 priv->dev_state = DEVICE_STATE_BOOT;
1020 priv->wq = alloc_workqueue("wq", WQ_MEM_RECLAIM, 1);
1022 netdev_err(priv->net_dev, "create_workqueue failed !!\n");
1023 goto err_free_netdev;
1026 INIT_DELAYED_WORK(&priv->rw_dwork, ks7010_rw_function);
1027 ks7010_card_init(priv);
1029 ret = register_netdev(priv->net_dev);
1031 goto err_free_netdev;
1036 free_netdev(netdev);
1038 sdio_claim_host(func);
1039 sdio_release_irq(func);
1041 sdio_disable_func(func);
1043 sdio_release_host(func);
1044 sdio_set_drvdata(func, NULL);
1050 /* send stop request to MAC */
1051 static int send_stop_request(struct sdio_func *func)
1053 struct hostif_stop_request *pp;
1054 struct ks_sdio_card *card;
1057 card = sdio_get_drvdata(func);
1059 pp = kzalloc(hif_align_size(sizeof(*pp)), GFP_KERNEL);
1063 size = sizeof(*pp) - sizeof(pp->header.size);
1064 pp->header.size = cpu_to_le16(size);
1065 pp->header.event = cpu_to_le16(HIF_STOP_REQ);
1067 sdio_claim_host(func);
1068 write_to_device(card->priv, (u8 *)pp, hif_align_size(sizeof(*pp)));
1069 sdio_release_host(func);
1075 static void ks7010_sdio_remove(struct sdio_func *func)
1078 struct ks_sdio_card *card;
1079 struct ks_wlan_private *priv;
1081 card = sdio_get_drvdata(func);
1090 ks_wlan_net_stop(priv->net_dev);
1092 /* interrupt disable */
1093 sdio_claim_host(func);
1094 sdio_writeb(func, 0, INT_ENABLE_REG, &ret);
1095 sdio_writeb(func, 0xff, INT_PENDING_REG, &ret);
1096 sdio_release_host(func);
1098 ret = send_stop_request(func);
1099 if (ret) /* memory allocation failure */
1103 flush_workqueue(priv->wq);
1104 destroy_workqueue(priv->wq);
1109 unregister_netdev(priv->net_dev);
1111 trx_device_exit(priv);
1112 free_netdev(priv->net_dev);
1115 sdio_claim_host(func);
1116 sdio_release_irq(func);
1117 sdio_disable_func(func);
1118 sdio_release_host(func);
1120 sdio_set_drvdata(func, NULL);
1124 static const struct sdio_device_id ks7010_sdio_ids[] = {
1125 {SDIO_DEVICE(SDIO_VENDOR_ID_KS_CODE_A, SDIO_DEVICE_ID_KS_7010)},
1126 {SDIO_DEVICE(SDIO_VENDOR_ID_KS_CODE_B, SDIO_DEVICE_ID_KS_7010)},
1129 MODULE_DEVICE_TABLE(sdio, ks7010_sdio_ids);
1131 static struct sdio_driver ks7010_sdio_driver = {
1132 .name = "ks7010_sdio",
1133 .id_table = ks7010_sdio_ids,
1134 .probe = ks7010_sdio_probe,
1135 .remove = ks7010_sdio_remove,
1138 module_driver(ks7010_sdio_driver, sdio_register_driver, sdio_unregister_driver);
1139 MODULE_AUTHOR("Sang Engineering, Qi-Hardware, KeyStream");
1140 MODULE_DESCRIPTION("Driver for KeyStream KS7010 based SDIO cards");
1141 MODULE_LICENSE("GPL v2");
1142 MODULE_FIRMWARE(ROM_FILE);