1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries.
7 #include <linux/if_ether.h>
12 static inline bool is_wilc1000(u32 id)
14 return (id & (~WILC_CHIP_REV_FIELD)) == WILC_1000_BASE_ID;
17 static inline void acquire_bus(struct wilc *wilc, enum bus_acquire acquire)
19 mutex_lock(&wilc->hif_cs);
20 if (acquire == WILC_BUS_ACQUIRE_AND_WAKEUP)
24 static inline void release_bus(struct wilc *wilc, enum bus_release release)
26 if (release == WILC_BUS_RELEASE_ALLOW_SLEEP)
27 chip_allow_sleep(wilc);
28 mutex_unlock(&wilc->hif_cs);
31 static void wilc_wlan_txq_remove(struct wilc *wilc, struct txq_entry_t *tqe)
34 wilc->txq_entries -= 1;
37 static struct txq_entry_t *
38 wilc_wlan_txq_remove_from_head(struct net_device *dev)
40 struct txq_entry_t *tqe = NULL;
42 struct wilc_vif *vif = netdev_priv(dev);
43 struct wilc *wilc = vif->wilc;
45 spin_lock_irqsave(&wilc->txq_spinlock, flags);
47 if (!list_empty(&wilc->txq_head.list)) {
48 tqe = list_first_entry(&wilc->txq_head.list, struct txq_entry_t,
51 wilc->txq_entries -= 1;
53 spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
57 static void wilc_wlan_txq_add_to_tail(struct net_device *dev,
58 struct txq_entry_t *tqe)
61 struct wilc_vif *vif = netdev_priv(dev);
62 struct wilc *wilc = vif->wilc;
64 spin_lock_irqsave(&wilc->txq_spinlock, flags);
66 list_add_tail(&tqe->list, &wilc->txq_head.list);
67 wilc->txq_entries += 1;
69 spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
71 complete(&wilc->txq_event);
74 static void wilc_wlan_txq_add_to_head(struct wilc_vif *vif,
75 struct txq_entry_t *tqe)
78 struct wilc *wilc = vif->wilc;
80 mutex_lock(&wilc->txq_add_to_head_cs);
82 spin_lock_irqsave(&wilc->txq_spinlock, flags);
84 list_add(&tqe->list, &wilc->txq_head.list);
85 wilc->txq_entries += 1;
87 spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
88 mutex_unlock(&wilc->txq_add_to_head_cs);
89 complete(&wilc->txq_event);
92 #define NOT_TCP_ACK (-1)
94 static inline void add_tcp_session(struct wilc_vif *vif, u32 src_prt,
97 struct tcp_ack_filter *f = &vif->ack_filter;
99 if (f->tcp_session < 2 * MAX_TCP_SESSION) {
100 f->ack_session_info[f->tcp_session].seq_num = seq;
101 f->ack_session_info[f->tcp_session].bigger_ack_num = 0;
102 f->ack_session_info[f->tcp_session].src_port = src_prt;
103 f->ack_session_info[f->tcp_session].dst_port = dst_prt;
108 static inline void update_tcp_session(struct wilc_vif *vif, u32 index, u32 ack)
110 struct tcp_ack_filter *f = &vif->ack_filter;
112 if (index < 2 * MAX_TCP_SESSION &&
113 ack > f->ack_session_info[index].bigger_ack_num)
114 f->ack_session_info[index].bigger_ack_num = ack;
117 static inline void add_tcp_pending_ack(struct wilc_vif *vif, u32 ack,
119 struct txq_entry_t *txqe)
121 struct tcp_ack_filter *f = &vif->ack_filter;
122 u32 i = f->pending_base + f->pending_acks_idx;
124 if (i < MAX_PENDING_ACKS) {
125 f->pending_acks[i].ack_num = ack;
126 f->pending_acks[i].txqe = txqe;
127 f->pending_acks[i].session_index = session_index;
129 f->pending_acks_idx++;
133 static inline void tcp_process(struct net_device *dev, struct txq_entry_t *tqe)
135 void *buffer = tqe->buffer;
136 const struct ethhdr *eth_hdr_ptr = buffer;
139 struct wilc_vif *vif = netdev_priv(dev);
140 struct wilc *wilc = vif->wilc;
141 struct tcp_ack_filter *f = &vif->ack_filter;
142 const struct iphdr *ip_hdr_ptr;
143 const struct tcphdr *tcp_hdr_ptr;
144 u32 ihl, total_length, data_offset;
146 spin_lock_irqsave(&wilc->txq_spinlock, flags);
148 if (eth_hdr_ptr->h_proto != htons(ETH_P_IP))
151 ip_hdr_ptr = buffer + ETH_HLEN;
153 if (ip_hdr_ptr->protocol != IPPROTO_TCP)
156 ihl = ip_hdr_ptr->ihl << 2;
157 tcp_hdr_ptr = buffer + ETH_HLEN + ihl;
158 total_length = ntohs(ip_hdr_ptr->tot_len);
160 data_offset = tcp_hdr_ptr->doff << 2;
161 if (total_length == (ihl + data_offset)) {
164 seq_no = ntohl(tcp_hdr_ptr->seq);
165 ack_no = ntohl(tcp_hdr_ptr->ack_seq);
166 for (i = 0; i < f->tcp_session; i++) {
167 u32 j = f->ack_session_info[i].seq_num;
169 if (i < 2 * MAX_TCP_SESSION &&
171 update_tcp_session(vif, i, ack_no);
175 if (i == f->tcp_session)
176 add_tcp_session(vif, 0, 0, seq_no);
178 add_tcp_pending_ack(vif, ack_no, i, tqe);
182 spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
185 static void wilc_wlan_txq_filter_dup_tcp_ack(struct net_device *dev)
187 struct wilc_vif *vif = netdev_priv(dev);
188 struct wilc *wilc = vif->wilc;
189 struct tcp_ack_filter *f = &vif->ack_filter;
194 spin_lock_irqsave(&wilc->txq_spinlock, flags);
195 for (i = f->pending_base;
196 i < (f->pending_base + f->pending_acks_idx); i++) {
200 if (i >= MAX_PENDING_ACKS)
203 index = f->pending_acks[i].session_index;
205 if (index >= 2 * MAX_TCP_SESSION)
208 bigger_ack_num = f->ack_session_info[index].bigger_ack_num;
210 if (f->pending_acks[i].ack_num < bigger_ack_num) {
211 struct txq_entry_t *tqe;
213 tqe = f->pending_acks[i].txqe;
215 wilc_wlan_txq_remove(wilc, tqe);
217 if (tqe->tx_complete_func)
218 tqe->tx_complete_func(tqe->priv,
225 f->pending_acks_idx = 0;
228 if (f->pending_base == 0)
229 f->pending_base = MAX_TCP_SESSION;
233 spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
235 while (dropped > 0) {
236 wait_for_completion_timeout(&wilc->txq_event,
237 msecs_to_jiffies(1));
242 void wilc_enable_tcp_ack_filter(struct wilc_vif *vif, bool value)
244 vif->ack_filter.enabled = value;
247 static int wilc_wlan_txq_add_cfg_pkt(struct wilc_vif *vif, u8 *buffer,
250 struct txq_entry_t *tqe;
251 struct wilc *wilc = vif->wilc;
253 netdev_dbg(vif->ndev, "Adding config packet ...\n");
255 netdev_dbg(vif->ndev, "Return due to clear function\n");
256 complete(&wilc->cfg_event);
260 tqe = kmalloc(sizeof(*tqe), GFP_ATOMIC);
264 tqe->type = WILC_CFG_PKT;
265 tqe->buffer = buffer;
266 tqe->buffer_size = buffer_size;
267 tqe->tx_complete_func = NULL;
269 tqe->ack_idx = NOT_TCP_ACK;
272 wilc_wlan_txq_add_to_head(vif, tqe);
277 int wilc_wlan_txq_add_net_pkt(struct net_device *dev, void *priv, u8 *buffer,
279 void (*tx_complete_fn)(void *, int))
281 struct txq_entry_t *tqe;
282 struct wilc_vif *vif = netdev_priv(dev);
290 tqe = kmalloc(sizeof(*tqe), GFP_ATOMIC);
294 tqe->type = WILC_NET_PKT;
295 tqe->buffer = buffer;
296 tqe->buffer_size = buffer_size;
297 tqe->tx_complete_func = tx_complete_fn;
301 tqe->ack_idx = NOT_TCP_ACK;
302 if (vif->ack_filter.enabled)
303 tcp_process(dev, tqe);
304 wilc_wlan_txq_add_to_tail(dev, tqe);
305 return wilc->txq_entries;
308 int wilc_wlan_txq_add_mgmt_pkt(struct net_device *dev, void *priv, u8 *buffer,
310 void (*tx_complete_fn)(void *, int))
312 struct txq_entry_t *tqe;
313 struct wilc_vif *vif = netdev_priv(dev);
321 tqe = kmalloc(sizeof(*tqe), GFP_ATOMIC);
325 tqe->type = WILC_MGMT_PKT;
326 tqe->buffer = buffer;
327 tqe->buffer_size = buffer_size;
328 tqe->tx_complete_func = tx_complete_fn;
330 tqe->ack_idx = NOT_TCP_ACK;
332 wilc_wlan_txq_add_to_tail(dev, tqe);
336 static struct txq_entry_t *wilc_wlan_txq_get_first(struct wilc *wilc)
338 struct txq_entry_t *tqe = NULL;
341 spin_lock_irqsave(&wilc->txq_spinlock, flags);
343 if (!list_empty(&wilc->txq_head.list))
344 tqe = list_first_entry(&wilc->txq_head.list, struct txq_entry_t,
347 spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
352 static struct txq_entry_t *wilc_wlan_txq_get_next(struct wilc *wilc,
353 struct txq_entry_t *tqe)
357 spin_lock_irqsave(&wilc->txq_spinlock, flags);
359 if (!list_is_last(&tqe->list, &wilc->txq_head.list))
360 tqe = list_next_entry(tqe, list);
363 spin_unlock_irqrestore(&wilc->txq_spinlock, flags);
368 static void wilc_wlan_rxq_add(struct wilc *wilc, struct rxq_entry_t *rqe)
373 mutex_lock(&wilc->rxq_cs);
374 list_add_tail(&rqe->list, &wilc->rxq_head.list);
375 mutex_unlock(&wilc->rxq_cs);
378 static struct rxq_entry_t *wilc_wlan_rxq_remove(struct wilc *wilc)
380 struct rxq_entry_t *rqe = NULL;
382 mutex_lock(&wilc->rxq_cs);
383 if (!list_empty(&wilc->rxq_head.list)) {
384 rqe = list_first_entry(&wilc->rxq_head.list, struct rxq_entry_t,
386 list_del(&rqe->list);
388 mutex_unlock(&wilc->rxq_cs);
392 void chip_allow_sleep(struct wilc *wilc)
396 wilc->hif_func->hif_read_reg(wilc, WILC_SDIO_WAKEUP_REG, ®);
398 wilc->hif_func->hif_write_reg(wilc, WILC_SDIO_WAKEUP_REG,
399 reg & ~WILC_SDIO_WAKEUP_BIT);
400 wilc->hif_func->hif_write_reg(wilc, WILC_SDIO_HOST_TO_FW_REG, 0);
402 EXPORT_SYMBOL_GPL(chip_allow_sleep);
404 void chip_wakeup(struct wilc *wilc)
406 u32 reg, clk_status_reg;
407 const struct wilc_hif_func *h = wilc->hif_func;
409 if (wilc->io_type == WILC_HIF_SPI) {
411 h->hif_read_reg(wilc, WILC_SPI_WAKEUP_REG, ®);
412 h->hif_write_reg(wilc, WILC_SPI_WAKEUP_REG,
413 reg | WILC_SPI_WAKEUP_BIT);
414 h->hif_write_reg(wilc, WILC_SPI_WAKEUP_REG,
415 reg & ~WILC_SPI_WAKEUP_BIT);
418 usleep_range(2000, 2500);
419 wilc_get_chipid(wilc, true);
420 } while (wilc_get_chipid(wilc, true) == 0);
421 } while (wilc_get_chipid(wilc, true) == 0);
422 } else if (wilc->io_type == WILC_HIF_SDIO) {
423 h->hif_write_reg(wilc, WILC_SDIO_HOST_TO_FW_REG,
424 WILC_SDIO_HOST_TO_FW_BIT);
425 usleep_range(200, 400);
426 h->hif_read_reg(wilc, WILC_SDIO_WAKEUP_REG, ®);
428 h->hif_write_reg(wilc, WILC_SDIO_WAKEUP_REG,
429 reg | WILC_SDIO_WAKEUP_BIT);
430 h->hif_read_reg(wilc, WILC_SDIO_CLK_STATUS_REG,
433 while (!(clk_status_reg & WILC_SDIO_CLK_STATUS_BIT)) {
434 usleep_range(2000, 2500);
436 h->hif_read_reg(wilc, WILC_SDIO_CLK_STATUS_REG,
439 if (!(clk_status_reg & WILC_SDIO_CLK_STATUS_BIT)) {
440 h->hif_write_reg(wilc, WILC_SDIO_WAKEUP_REG,
441 reg & ~WILC_SDIO_WAKEUP_BIT);
443 } while (!(clk_status_reg & WILC_SDIO_CLK_STATUS_BIT));
446 if (wilc->chip_ps_state == WILC_CHIP_SLEEPING_MANUAL) {
447 if (wilc_get_chipid(wilc, false) < WILC_1000_BASE_ID_2B) {
450 h->hif_read_reg(wilc, WILC_REG_4_TO_1_RX, &val32);
452 h->hif_write_reg(wilc, WILC_REG_4_TO_1_RX, val32);
454 h->hif_read_reg(wilc, WILC_REG_4_TO_1_TX_BANK0, &val32);
456 h->hif_write_reg(wilc, WILC_REG_4_TO_1_TX_BANK0, val32);
459 wilc->chip_ps_state = WILC_CHIP_WAKEDUP;
461 EXPORT_SYMBOL_GPL(chip_wakeup);
463 void host_wakeup_notify(struct wilc *wilc)
465 acquire_bus(wilc, WILC_BUS_ACQUIRE_ONLY);
466 wilc->hif_func->hif_write_reg(wilc, WILC_CORTUS_INTERRUPT_2, 1);
467 release_bus(wilc, WILC_BUS_RELEASE_ONLY);
469 EXPORT_SYMBOL_GPL(host_wakeup_notify);
471 void host_sleep_notify(struct wilc *wilc)
473 acquire_bus(wilc, WILC_BUS_ACQUIRE_ONLY);
474 wilc->hif_func->hif_write_reg(wilc, WILC_CORTUS_INTERRUPT_1, 1);
475 release_bus(wilc, WILC_BUS_RELEASE_ONLY);
477 EXPORT_SYMBOL_GPL(host_sleep_notify);
479 int wilc_wlan_handle_txq(struct wilc *wilc, u32 *txq_count)
486 struct txq_entry_t *tqe;
490 u32 vmm_table[WILC_VMM_TBL_SIZE];
491 const struct wilc_hif_func *func;
492 u8 *txb = wilc->tx_buffer;
493 struct net_device *dev;
494 struct wilc_vif *vif;
499 mutex_lock(&wilc->txq_add_to_head_cs);
500 tqe = wilc_wlan_txq_get_first(wilc);
503 dev = tqe->vif->ndev;
504 wilc_wlan_txq_filter_dup_tcp_ack(dev);
507 while (tqe && (i < (WILC_VMM_TBL_SIZE - 1))) {
508 if (tqe->type == WILC_CFG_PKT)
509 vmm_sz = ETH_CONFIG_PKT_HDR_OFFSET;
510 else if (tqe->type == WILC_NET_PKT)
511 vmm_sz = ETH_ETHERNET_HDR_OFFSET;
513 vmm_sz = HOST_HDR_OFFSET;
515 vmm_sz += tqe->buffer_size;
516 vmm_sz = ALIGN(vmm_sz, 4);
518 if ((sum + vmm_sz) > WILC_TX_BUFF_SIZE)
521 vmm_table[i] = vmm_sz / 4;
522 if (tqe->type == WILC_CFG_PKT)
523 vmm_table[i] |= BIT(10);
524 cpu_to_le32s(&vmm_table[i]);
528 tqe = wilc_wlan_txq_get_next(wilc, tqe);
535 acquire_bus(wilc, WILC_BUS_ACQUIRE_AND_WAKEUP);
537 func = wilc->hif_func;
539 ret = func->hif_read_reg(wilc, WILC_HOST_TX_CTRL, ®);
543 if ((reg & 0x1) == 0)
549 ret = func->hif_write_reg(wilc, WILC_HOST_TX_CTRL, 0);
552 } while (!wilc->quit);
555 goto out_release_bus;
559 ret = func->hif_block_tx(wilc,
560 WILC_VMM_TBL_RX_SHADOW_BASE,
566 ret = func->hif_write_reg(wilc, WILC_HOST_VMM_CTL, 0x2);
571 ret = func->hif_read_reg(wilc, WILC_HOST_VMM_CTL, ®);
574 if (FIELD_GET(WILC_VMM_ENTRY_AVAILABLE, reg)) {
575 entries = FIELD_GET(WILC_VMM_ENTRY_COUNT, reg);
580 ret = func->hif_write_reg(wilc, WILC_HOST_VMM_CTL, 0x0);
588 ret = func->hif_read_reg(wilc, WILC_HOST_TX_CTRL, ®);
592 ret = func->hif_write_reg(wilc, WILC_HOST_TX_CTRL, reg);
597 goto out_release_bus;
601 * No VMM space available in firmware so retry to transmit
602 * the packet from tx queue.
604 ret = WILC_VMM_ENTRY_FULL_RETRY;
605 goto out_release_bus;
608 release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
613 u32 header, buffer_offset;
617 tqe = wilc_wlan_txq_remove_from_head(dev);
622 if (vmm_table[i] == 0)
625 le32_to_cpus(&vmm_table[i]);
626 vmm_sz = FIELD_GET(WILC_VMM_BUFFER_SIZE, vmm_table[i]);
629 if (tqe->type == WILC_MGMT_PKT)
632 header = (FIELD_PREP(WILC_VMM_HDR_TYPE, tqe->type) |
633 FIELD_PREP(WILC_VMM_HDR_MGMT_FIELD, mgmt_ptk) |
634 FIELD_PREP(WILC_VMM_HDR_PKT_SIZE, tqe->buffer_size) |
635 FIELD_PREP(WILC_VMM_HDR_BUFF_SIZE, vmm_sz));
637 cpu_to_le32s(&header);
638 memcpy(&txb[offset], &header, 4);
639 if (tqe->type == WILC_CFG_PKT) {
640 buffer_offset = ETH_CONFIG_PKT_HDR_OFFSET;
641 } else if (tqe->type == WILC_NET_PKT) {
642 bssid = tqe->vif->bssid;
643 buffer_offset = ETH_ETHERNET_HDR_OFFSET;
644 memcpy(&txb[offset + 8], bssid, 6);
646 buffer_offset = HOST_HDR_OFFSET;
649 memcpy(&txb[offset + buffer_offset],
650 tqe->buffer, tqe->buffer_size);
654 if (tqe->tx_complete_func)
655 tqe->tx_complete_func(tqe->priv, tqe->status);
656 if (tqe->ack_idx != NOT_TCP_ACK &&
657 tqe->ack_idx < MAX_PENDING_ACKS)
658 vif->ack_filter.pending_acks[tqe->ack_idx].txqe = NULL;
662 acquire_bus(wilc, WILC_BUS_ACQUIRE_AND_WAKEUP);
664 ret = func->hif_clear_int_ext(wilc, ENABLE_TX_VMM);
666 goto out_release_bus;
668 ret = func->hif_block_tx_ext(wilc, 0, txb, offset);
671 release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
674 mutex_unlock(&wilc->txq_add_to_head_cs);
677 *txq_count = wilc->txq_entries;
681 static void wilc_wlan_handle_rx_buff(struct wilc *wilc, u8 *buffer, int size)
685 u32 pkt_len, pkt_offset, tp_len;
690 buff_ptr = buffer + offset;
691 header = get_unaligned_le32(buff_ptr);
693 is_cfg_packet = FIELD_GET(WILC_PKT_HDR_CONFIG_FIELD, header);
694 pkt_offset = FIELD_GET(WILC_PKT_HDR_OFFSET_FIELD, header);
695 tp_len = FIELD_GET(WILC_PKT_HDR_TOTAL_LEN_FIELD, header);
696 pkt_len = FIELD_GET(WILC_PKT_HDR_LEN_FIELD, header);
698 if (pkt_len == 0 || tp_len == 0)
701 if (pkt_offset & IS_MANAGMEMENT) {
702 buff_ptr += HOST_HDR_OFFSET;
703 wilc_wfi_mgmt_rx(wilc, buff_ptr, pkt_len);
705 if (!is_cfg_packet) {
706 wilc_frmw_to_host(wilc, buff_ptr, pkt_len,
709 struct wilc_cfg_rsp rsp;
711 buff_ptr += pkt_offset;
713 wilc_wlan_cfg_indicate_rx(wilc, buff_ptr,
716 if (rsp.type == WILC_CFG_RSP) {
717 if (wilc->cfg_seq_no == rsp.seq_no)
718 complete(&wilc->cfg_event);
719 } else if (rsp.type == WILC_CFG_RSP_STATUS) {
720 wilc_mac_indicate(wilc);
725 } while (offset < size);
728 static void wilc_wlan_handle_rxq(struct wilc *wilc)
732 struct rxq_entry_t *rqe;
734 while (!wilc->quit) {
735 rqe = wilc_wlan_rxq_remove(wilc);
739 buffer = rqe->buffer;
740 size = rqe->buffer_size;
741 wilc_wlan_handle_rx_buff(wilc, buffer, size);
746 complete(&wilc->cfg_event);
749 static void wilc_unknown_isr_ext(struct wilc *wilc)
751 wilc->hif_func->hif_clear_int_ext(wilc, 0);
754 static void wilc_wlan_handle_isr_ext(struct wilc *wilc, u32 int_status)
756 u32 offset = wilc->rx_buffer_offset;
761 struct rxq_entry_t *rqe;
763 size = FIELD_GET(WILC_INTERRUPT_DATA_SIZE, int_status) << 2;
765 while (!size && retries < 10) {
766 wilc->hif_func->hif_read_size(wilc, &size);
767 size = FIELD_GET(WILC_INTERRUPT_DATA_SIZE, size) << 2;
774 if (WILC_RX_BUFF_SIZE - offset < size)
777 buffer = &wilc->rx_buffer[offset];
779 wilc->hif_func->hif_clear_int_ext(wilc, DATA_INT_CLR | ENABLE_RX_VMM);
780 ret = wilc->hif_func->hif_block_rx_ext(wilc, 0, buffer, size);
785 wilc->rx_buffer_offset = offset;
786 rqe = kmalloc(sizeof(*rqe), GFP_KERNEL);
790 rqe->buffer = buffer;
791 rqe->buffer_size = size;
792 wilc_wlan_rxq_add(wilc, rqe);
793 wilc_wlan_handle_rxq(wilc);
796 void wilc_handle_isr(struct wilc *wilc)
800 acquire_bus(wilc, WILC_BUS_ACQUIRE_AND_WAKEUP);
801 wilc->hif_func->hif_read_int(wilc, &int_status);
803 if (int_status & DATA_INT_EXT)
804 wilc_wlan_handle_isr_ext(wilc, int_status);
806 if (!(int_status & (ALL_INT_EXT)))
807 wilc_unknown_isr_ext(wilc);
809 release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
811 EXPORT_SYMBOL_GPL(wilc_handle_isr);
813 int wilc_wlan_firmware_download(struct wilc *wilc, const u8 *buffer,
817 u32 addr, size, size2, blksz;
823 dma_buffer = kmalloc(blksz, GFP_KERNEL);
829 addr = get_unaligned_le32(&buffer[offset]);
830 size = get_unaligned_le32(&buffer[offset + 4]);
831 acquire_bus(wilc, WILC_BUS_ACQUIRE_ONLY);
833 while (((int)size) && (offset < buffer_size)) {
839 memcpy(dma_buffer, &buffer[offset], size2);
840 ret = wilc->hif_func->hif_block_tx(wilc, addr,
849 release_bus(wilc, WILC_BUS_RELEASE_ONLY);
853 } while (offset < buffer_size);
862 int wilc_wlan_start(struct wilc *wilc)
868 if (wilc->io_type == WILC_HIF_SDIO) {
871 } else if (wilc->io_type == WILC_HIF_SPI) {
874 acquire_bus(wilc, WILC_BUS_ACQUIRE_ONLY);
875 ret = wilc->hif_func->hif_write_reg(wilc, WILC_VMM_CORE_CFG, reg);
877 release_bus(wilc, WILC_BUS_RELEASE_ONLY);
881 if (wilc->io_type == WILC_HIF_SDIO && wilc->dev_irq_num)
882 reg |= WILC_HAVE_SDIO_IRQ_GPIO;
884 ret = wilc->hif_func->hif_write_reg(wilc, WILC_GP_REG_1, reg);
886 release_bus(wilc, WILC_BUS_RELEASE_ONLY);
890 wilc->hif_func->hif_sync_ext(wilc, NUM_INT_EXT);
892 ret = wilc->hif_func->hif_read_reg(wilc, WILC_CHIPID, &chipid);
894 release_bus(wilc, WILC_BUS_RELEASE_ONLY);
898 wilc->hif_func->hif_read_reg(wilc, WILC_GLB_RESET_0, ®);
899 if ((reg & BIT(10)) == BIT(10)) {
901 wilc->hif_func->hif_write_reg(wilc, WILC_GLB_RESET_0, reg);
902 wilc->hif_func->hif_read_reg(wilc, WILC_GLB_RESET_0, ®);
906 ret = wilc->hif_func->hif_write_reg(wilc, WILC_GLB_RESET_0, reg);
907 wilc->hif_func->hif_read_reg(wilc, WILC_GLB_RESET_0, ®);
908 release_bus(wilc, WILC_BUS_RELEASE_ONLY);
913 int wilc_wlan_stop(struct wilc *wilc, struct wilc_vif *vif)
918 acquire_bus(wilc, WILC_BUS_ACQUIRE_AND_WAKEUP);
920 ret = wilc->hif_func->hif_read_reg(wilc, WILC_GP_REG_0, ®);
922 netdev_err(vif->ndev, "Error while reading reg\n");
923 release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
927 ret = wilc->hif_func->hif_write_reg(wilc, WILC_GP_REG_0,
928 (reg | WILC_ABORT_REQ_BIT));
930 netdev_err(vif->ndev, "Error while writing reg\n");
931 release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
935 ret = wilc->hif_func->hif_read_reg(wilc, WILC_FW_HOST_COMM, ®);
937 netdev_err(vif->ndev, "Error while reading reg\n");
938 release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
943 ret = wilc->hif_func->hif_write_reg(wilc, WILC_FW_HOST_COMM, reg);
945 netdev_err(vif->ndev, "Error while writing reg\n");
946 release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
950 release_bus(wilc, WILC_BUS_RELEASE_ALLOW_SLEEP);
955 void wilc_wlan_cleanup(struct net_device *dev)
957 struct txq_entry_t *tqe;
958 struct rxq_entry_t *rqe;
959 struct wilc_vif *vif = netdev_priv(dev);
960 struct wilc *wilc = vif->wilc;
963 while ((tqe = wilc_wlan_txq_remove_from_head(dev))) {
964 if (tqe->tx_complete_func)
965 tqe->tx_complete_func(tqe->priv, 0);
969 while ((rqe = wilc_wlan_rxq_remove(wilc)))
972 kfree(wilc->rx_buffer);
973 wilc->rx_buffer = NULL;
974 kfree(wilc->tx_buffer);
975 wilc->tx_buffer = NULL;
976 wilc->hif_func->hif_deinit(NULL);
979 static int wilc_wlan_cfg_commit(struct wilc_vif *vif, int type,
982 struct wilc *wilc = vif->wilc;
983 struct wilc_cfg_frame *cfg = &wilc->cfg_frame;
984 int t_len = wilc->cfg_frame_offset + sizeof(struct wilc_cfg_cmd_hdr);
986 if (type == WILC_CFG_SET)
987 cfg->hdr.cmd_type = 'W';
989 cfg->hdr.cmd_type = 'Q';
991 cfg->hdr.seq_no = wilc->cfg_seq_no % 256;
992 cfg->hdr.total_len = cpu_to_le16(t_len);
993 cfg->hdr.driver_handler = cpu_to_le32(drv_handler);
994 wilc->cfg_seq_no = cfg->hdr.seq_no;
996 if (!wilc_wlan_txq_add_cfg_pkt(vif, (u8 *)&cfg->hdr, t_len))
1002 int wilc_wlan_cfg_set(struct wilc_vif *vif, int start, u16 wid, u8 *buffer,
1003 u32 buffer_size, int commit, u32 drv_handler)
1007 struct wilc *wilc = vif->wilc;
1009 mutex_lock(&wilc->cfg_cmd_lock);
1012 wilc->cfg_frame_offset = 0;
1014 offset = wilc->cfg_frame_offset;
1015 ret_size = wilc_wlan_cfg_set_wid(wilc->cfg_frame.frame, offset,
1016 wid, buffer, buffer_size);
1018 wilc->cfg_frame_offset = offset;
1021 mutex_unlock(&wilc->cfg_cmd_lock);
1025 netdev_dbg(vif->ndev, "%s: seqno[%d]\n", __func__, wilc->cfg_seq_no);
1027 if (wilc_wlan_cfg_commit(vif, WILC_CFG_SET, drv_handler))
1030 if (!wait_for_completion_timeout(&wilc->cfg_event,
1031 WILC_CFG_PKTS_TIMEOUT)) {
1032 netdev_dbg(vif->ndev, "%s: Timed Out\n", __func__);
1036 wilc->cfg_frame_offset = 0;
1037 wilc->cfg_seq_no += 1;
1038 mutex_unlock(&wilc->cfg_cmd_lock);
1043 int wilc_wlan_cfg_get(struct wilc_vif *vif, int start, u16 wid, int commit,
1048 struct wilc *wilc = vif->wilc;
1050 mutex_lock(&wilc->cfg_cmd_lock);
1053 wilc->cfg_frame_offset = 0;
1055 offset = wilc->cfg_frame_offset;
1056 ret_size = wilc_wlan_cfg_get_wid(wilc->cfg_frame.frame, offset, wid);
1058 wilc->cfg_frame_offset = offset;
1061 mutex_unlock(&wilc->cfg_cmd_lock);
1065 if (wilc_wlan_cfg_commit(vif, WILC_CFG_QUERY, drv_handler))
1068 if (!wait_for_completion_timeout(&wilc->cfg_event,
1069 WILC_CFG_PKTS_TIMEOUT)) {
1070 netdev_dbg(vif->ndev, "%s: Timed Out\n", __func__);
1073 wilc->cfg_frame_offset = 0;
1074 wilc->cfg_seq_no += 1;
1075 mutex_unlock(&wilc->cfg_cmd_lock);
1080 int wilc_send_config_pkt(struct wilc_vif *vif, u8 mode, struct wid *wids,
1085 u32 drv = wilc_get_vif_idx(vif);
1087 if (mode == WILC_GET_CFG) {
1088 for (i = 0; i < count; i++) {
1089 if (!wilc_wlan_cfg_get(vif, !i,
1097 for (i = 0; i < count; i++) {
1098 wids[i].size = wilc_wlan_cfg_get_val(vif->wilc,
1103 } else if (mode == WILC_SET_CFG) {
1104 for (i = 0; i < count; i++) {
1105 if (!wilc_wlan_cfg_set(vif, !i,
1120 static int init_chip(struct net_device *dev)
1125 struct wilc_vif *vif = netdev_priv(dev);
1126 struct wilc *wilc = vif->wilc;
1128 acquire_bus(wilc, WILC_BUS_ACQUIRE_ONLY);
1130 chipid = wilc_get_chipid(wilc, true);
1132 if ((chipid & 0xfff) != 0xa0) {
1133 ret = wilc->hif_func->hif_read_reg(wilc,
1134 WILC_CORTUS_RESET_MUX_SEL,
1137 netdev_err(dev, "fail read reg 0x1118\n");
1141 ret = wilc->hif_func->hif_write_reg(wilc,
1142 WILC_CORTUS_RESET_MUX_SEL,
1145 netdev_err(dev, "fail write reg 0x1118\n");
1148 ret = wilc->hif_func->hif_write_reg(wilc,
1149 WILC_CORTUS_BOOT_REGISTER,
1150 WILC_CORTUS_BOOT_FROM_IRAM);
1152 netdev_err(dev, "fail write reg 0xc0000\n");
1158 release_bus(wilc, WILC_BUS_RELEASE_ONLY);
1163 u32 wilc_get_chipid(struct wilc *wilc, bool update)
1169 if (chipid == 0 || update) {
1170 wilc->hif_func->hif_read_reg(wilc, WILC_CHIPID, &tempchipid);
1171 wilc->hif_func->hif_read_reg(wilc, WILC_RF_REVISION_ID,
1173 if (!is_wilc1000(tempchipid)) {
1177 if (tempchipid == WILC_1000_BASE_ID_2A) { /* 0x1002A0 */
1179 tempchipid = WILC_1000_BASE_ID_2A_REV1;
1180 } else if (tempchipid == WILC_1000_BASE_ID_2B) { /* 0x1002B0 */
1182 tempchipid = WILC_1000_BASE_ID_2B_REV1;
1183 else if (rfrevid != 0x3)
1184 tempchipid = WILC_1000_BASE_ID_2B_REV2;
1187 chipid = tempchipid;
1192 int wilc_wlan_init(struct net_device *dev)
1195 struct wilc_vif *vif = netdev_priv(dev);
1202 if (wilc->hif_func->hif_init(wilc, false)) {
1207 if (!wilc->tx_buffer)
1208 wilc->tx_buffer = kmalloc(WILC_TX_BUFF_SIZE, GFP_KERNEL);
1210 if (!wilc->tx_buffer) {
1215 if (!wilc->rx_buffer)
1216 wilc->rx_buffer = kmalloc(WILC_RX_BUFF_SIZE, GFP_KERNEL);
1218 if (!wilc->rx_buffer) {
1223 if (init_chip(dev)) {
1232 kfree(wilc->rx_buffer);
1233 wilc->rx_buffer = NULL;
1234 kfree(wilc->tx_buffer);
1235 wilc->tx_buffer = NULL;