2 * Marvell BT-over-SDIO driver: SDIO interface related functions.
4 * Copyright (C) 2009, Marvell International Ltd.
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
15 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
17 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
18 * this warranty disclaimer.
21 #include <linux/firmware.h>
22 #include <linux/slab.h>
24 #include <linux/mmc/sdio_ids.h>
25 #include <linux/mmc/sdio_func.h>
26 #include <linux/module.h>
28 #include <net/bluetooth/bluetooth.h>
29 #include <net/bluetooth/hci_core.h>
31 #include "btmrvl_drv.h"
32 #include "btmrvl_sdio.h"
36 /* The btmrvl_sdio_remove() callback function is called
37 * when user removes this module from kernel space or ejects
38 * the card from the slot. The driver handles these 2 cases
40 * If the user is removing the module, a MODULE_SHUTDOWN_REQ
41 * command is sent to firmware and interrupt will be disabled.
42 * If the card is removed, there is no need to send command
43 * or disable interrupt.
45 * The variable 'user_rmmod' is used to distinguish these two
46 * scenarios. This flag is initialized as FALSE in case the card
47 * is removed, and will be set to TRUE for module removal when
48 * module_exit function is called.
53 static const struct btmrvl_sdio_card_reg btmrvl_reg_8688 = {
55 .host_int_mask = 0x04,
56 .host_intstatus = 0x05,
58 .sq_read_base_addr_a0 = 0x10,
59 .sq_read_base_addr_a1 = 0x11,
60 .card_fw_status0 = 0x40,
61 .card_fw_status1 = 0x41,
68 static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx = {
70 .host_int_mask = 0x02,
71 .host_intstatus = 0x03,
73 .sq_read_base_addr_a0 = 0x40,
74 .sq_read_base_addr_a1 = 0x41,
75 .card_revision = 0x5c,
76 .card_fw_status0 = 0x60,
77 .card_fw_status1 = 0x61,
85 static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
86 .helper = "sd8688_helper.bin",
87 .firmware = "sd8688.bin",
88 .reg = &btmrvl_reg_8688,
92 static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
94 .firmware = "mrvl/sd8787_uapsta.bin",
95 .reg = &btmrvl_reg_87xx,
96 .sd_blksz_fw_dl = 256,
99 static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
101 .firmware = "mrvl/sd8797_uapsta.bin",
102 .reg = &btmrvl_reg_87xx,
103 .sd_blksz_fw_dl = 256,
106 static const struct sdio_device_id btmrvl_sdio_ids[] = {
107 /* Marvell SD8688 Bluetooth device */
108 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x9105),
109 .driver_data = (unsigned long) &btmrvl_sdio_sd8688 },
110 /* Marvell SD8787 Bluetooth device */
111 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911A),
112 .driver_data = (unsigned long) &btmrvl_sdio_sd8787 },
113 /* Marvell SD8787 Bluetooth AMP device */
114 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x911B),
115 .driver_data = (unsigned long) &btmrvl_sdio_sd8787 },
116 /* Marvell SD8797 Bluetooth device */
117 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, 0x912A),
118 .driver_data = (unsigned long) &btmrvl_sdio_sd8797 },
120 { } /* Terminating entry */
123 MODULE_DEVICE_TABLE(sdio, btmrvl_sdio_ids);
125 static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card *card)
130 reg = sdio_readb(card->func, card->reg->card_rx_unit, &ret);
137 static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card *card, u16 *dat)
144 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
148 fws1 = sdio_readb(card->func, card->reg->card_fw_status1, &ret);
152 *dat = (((u16) fws1) << 8) | fws0;
157 static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card *card, u16 *dat)
162 reg = sdio_readb(card->func, card->reg->card_rx_len, &ret);
164 *dat = (u16) reg << card->rx_unit;
169 static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card *card,
174 sdio_writeb(card->func, mask, card->reg->host_int_mask, &ret);
176 BT_ERR("Unable to enable the host interrupt!");
183 static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card *card,
189 host_int_mask = sdio_readb(card->func, card->reg->host_int_mask, &ret);
193 host_int_mask &= ~mask;
195 sdio_writeb(card->func, host_int_mask, card->reg->host_int_mask, &ret);
197 BT_ERR("Unable to disable the host interrupt!");
204 static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card *card, u8 bits)
210 for (tries = 0; tries < MAX_POLL_TRIES * 1000; tries++) {
211 status = sdio_readb(card->func, card->reg->card_status, &ret);
214 if ((status & bits) == bits)
223 BT_ERR("FAILED! ret=%d", ret);
228 static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card *card,
231 int ret = -ETIMEDOUT;
235 /* Wait for firmware to become ready */
236 for (tries = 0; tries < pollnum; tries++) {
237 if (btmrvl_sdio_read_fw_status(card, &firmwarestat) < 0)
240 if (firmwarestat == FIRMWARE_READY) {
251 static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card *card)
253 const struct firmware *fw_helper = NULL;
254 const u8 *helper = NULL;
256 void *tmphlprbuf = NULL;
257 int tmphlprbufsz, hlprblknow, helperlen;
261 ret = request_firmware(&fw_helper, card->helper,
263 if ((ret < 0) || !fw_helper) {
264 BT_ERR("request_firmware(helper) failed, error code = %d",
270 helper = fw_helper->data;
271 helperlen = fw_helper->size;
273 BT_DBG("Downloading helper image (%d bytes), block size %d bytes",
274 helperlen, SDIO_BLOCK_SIZE);
276 tmphlprbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
278 tmphlprbuf = kzalloc(tmphlprbufsz, GFP_KERNEL);
280 BT_ERR("Unable to allocate buffer for helper."
281 " Terminating download");
286 helperbuf = (u8 *) ALIGN_ADDR(tmphlprbuf, BTSDIO_DMA_ALIGN);
288 /* Perform helper data transfer */
289 tx_len = (FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE)
294 ret = btmrvl_sdio_poll_card_status(card,
295 CARD_IO_READY | DN_LD_CARD_RDY);
297 BT_ERR("Helper download poll status timeout @ %d",
302 /* Check if there is more data? */
303 if (hlprblknow >= helperlen)
306 if (helperlen - hlprblknow < tx_len)
307 tx_len = helperlen - hlprblknow;
310 helperbuf[0] = ((tx_len & 0x000000ff) >> 0);
311 helperbuf[1] = ((tx_len & 0x0000ff00) >> 8);
312 helperbuf[2] = ((tx_len & 0x00ff0000) >> 16);
313 helperbuf[3] = ((tx_len & 0xff000000) >> 24);
315 memcpy(&helperbuf[SDIO_HEADER_LEN], &helper[hlprblknow],
318 /* Now send the data */
319 ret = sdio_writesb(card->func, card->ioport, helperbuf,
320 FIRMWARE_TRANSFER_NBLOCK * SDIO_BLOCK_SIZE);
322 BT_ERR("IO error during helper download @ %d",
327 hlprblknow += tx_len;
330 BT_DBG("Transferring helper image EOF block");
332 memset(helperbuf, 0x0, SDIO_BLOCK_SIZE);
334 ret = sdio_writesb(card->func, card->ioport, helperbuf,
337 BT_ERR("IO error in writing helper image EOF block");
345 release_firmware(fw_helper);
349 static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card *card)
351 const struct firmware *fw_firmware = NULL;
352 const u8 *firmware = NULL;
353 int firmwarelen, tmpfwbufsz, ret;
354 unsigned int tries, offset;
356 void *tmpfwbuf = NULL;
358 u16 len, blksz_dl = card->sd_blksz_fw_dl;
359 int txlen = 0, tx_blocks = 0, count = 0;
361 ret = request_firmware(&fw_firmware, card->firmware,
363 if ((ret < 0) || !fw_firmware) {
364 BT_ERR("request_firmware(firmware) failed, error code = %d",
370 firmware = fw_firmware->data;
371 firmwarelen = fw_firmware->size;
373 BT_DBG("Downloading FW image (%d bytes)", firmwarelen);
375 tmpfwbufsz = ALIGN_SZ(BTM_UPLD_SIZE, BTSDIO_DMA_ALIGN);
376 tmpfwbuf = kzalloc(tmpfwbufsz, GFP_KERNEL);
378 BT_ERR("Unable to allocate buffer for firmware."
379 " Terminating download");
384 /* Ensure aligned firmware buffer */
385 fwbuf = (u8 *) ALIGN_ADDR(tmpfwbuf, BTSDIO_DMA_ALIGN);
387 /* Perform firmware data transfer */
390 ret = btmrvl_sdio_poll_card_status(card,
391 CARD_IO_READY | DN_LD_CARD_RDY);
393 BT_ERR("FW download with helper poll status"
394 " timeout @ %d", offset);
398 /* Check if there is more data ? */
399 if (offset >= firmwarelen)
402 for (tries = 0; tries < MAX_POLL_TRIES; tries++) {
403 base0 = sdio_readb(card->func,
404 card->reg->sq_read_base_addr_a0, &ret);
406 BT_ERR("BASE0 register read failed:"
407 " base0 = 0x%04X(%d)."
408 " Terminating download",
413 base1 = sdio_readb(card->func,
414 card->reg->sq_read_base_addr_a1, &ret);
416 BT_ERR("BASE1 register read failed:"
417 " base1 = 0x%04X(%d)."
418 " Terminating download",
424 len = (((u16) base1) << 8) | base0;
433 else if (len > BTM_UPLD_SIZE) {
434 BT_ERR("FW download failure @%d, invalid length %d",
444 if (count > MAX_WRITE_IOMEM_RETRY) {
445 BT_ERR("FW download failure @%d, "
446 "over max retry count", offset);
450 BT_ERR("FW CRC error indicated by the helper: "
451 "len = 0x%04X, txlen = %d", len, txlen);
453 /* Set txlen to 0 so as to resend from same offset */
459 if (firmwarelen - offset < txlen)
460 txlen = firmwarelen - offset;
462 tx_blocks = (txlen + blksz_dl - 1) / blksz_dl;
464 memcpy(fwbuf, &firmware[offset], txlen);
467 ret = sdio_writesb(card->func, card->ioport, fwbuf,
468 tx_blocks * blksz_dl);
471 BT_ERR("FW download, writesb(%d) failed @%d",
473 sdio_writeb(card->func, HOST_CMD53_FIN,
474 card->reg->cfg, &ret);
476 BT_ERR("writeb failed (CFG)");
482 BT_DBG("FW download over, size %d bytes", offset);
488 release_firmware(fw_firmware);
492 static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
495 int ret, num_blocks, blksz;
496 struct sk_buff *skb = NULL;
499 struct hci_dev *hdev = priv->btmrvl_dev.hcidev;
500 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
502 if (!card || !card->func) {
503 BT_ERR("card or function is NULL!");
508 /* Read the length of data to be transferred */
509 ret = btmrvl_sdio_read_rx_len(card, &buf_len);
511 BT_ERR("read rx_len failed");
516 blksz = SDIO_BLOCK_SIZE;
517 num_blocks = DIV_ROUND_UP(buf_len, blksz);
519 if (buf_len <= SDIO_HEADER_LEN
520 || (num_blocks * blksz) > ALLOC_BUF_SIZE) {
521 BT_ERR("invalid packet length: %d", buf_len);
526 /* Allocate buffer */
527 skb = bt_skb_alloc(num_blocks * blksz + BTSDIO_DMA_ALIGN, GFP_ATOMIC);
529 BT_ERR("No free skb");
533 if ((unsigned long) skb->data & (BTSDIO_DMA_ALIGN - 1)) {
534 skb_put(skb, (unsigned long) skb->data &
535 (BTSDIO_DMA_ALIGN - 1));
536 skb_pull(skb, (unsigned long) skb->data &
537 (BTSDIO_DMA_ALIGN - 1));
542 ret = sdio_readsb(card->func, payload, card->ioport,
545 BT_ERR("readsb failed: %d", ret);
550 /* This is SDIO specific header length: byte[2][1][0], type: byte[3]
551 * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor)
554 buf_len = payload[0];
555 buf_len |= (u16) payload[1] << 8;
559 case HCI_ACLDATA_PKT:
560 case HCI_SCODATA_PKT:
562 bt_cb(skb)->pkt_type = type;
563 skb->dev = (void *)hdev;
564 skb_put(skb, buf_len);
565 skb_pull(skb, SDIO_HEADER_LEN);
567 if (type == HCI_EVENT_PKT) {
568 if (btmrvl_check_evtpkt(priv, skb))
574 hdev->stat.byte_rx += buf_len;
577 case MRVL_VENDOR_PKT:
578 bt_cb(skb)->pkt_type = HCI_VENDOR_PKT;
579 skb->dev = (void *)hdev;
580 skb_put(skb, buf_len);
581 skb_pull(skb, SDIO_HEADER_LEN);
583 if (btmrvl_process_event(priv, skb))
586 hdev->stat.byte_rx += buf_len;
590 BT_ERR("Unknown packet type:%d", type);
591 print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, payload,
608 static int btmrvl_sdio_process_int_status(struct btmrvl_private *priv)
612 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
614 spin_lock_irqsave(&priv->driver_lock, flags);
617 spin_unlock_irqrestore(&priv->driver_lock, flags);
619 sdio_claim_host(card->func);
620 if (ireg & DN_LD_HOST_INT_STATUS) {
621 if (priv->btmrvl_dev.tx_dnld_rdy)
622 BT_DBG("tx_done already received: "
623 " int_status=0x%x", ireg);
625 priv->btmrvl_dev.tx_dnld_rdy = true;
628 if (ireg & UP_LD_HOST_INT_STATUS)
629 btmrvl_sdio_card_to_host(priv);
631 sdio_release_host(card->func);
636 static void btmrvl_sdio_interrupt(struct sdio_func *func)
638 struct btmrvl_private *priv;
639 struct btmrvl_sdio_card *card;
644 card = sdio_get_drvdata(func);
645 if (!card || !card->priv) {
646 BT_ERR("sbi_interrupt(%p) card or priv is "
647 "NULL, card=%p\n", func, card);
653 ireg = sdio_readb(card->func, card->reg->host_intstatus, &ret);
655 BT_ERR("sdio_readb: read int status register failed");
661 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
662 * Clear the interrupt status register and re-enable the
665 BT_DBG("ireg = 0x%x", ireg);
667 sdio_writeb(card->func, ~(ireg) & (DN_LD_HOST_INT_STATUS |
668 UP_LD_HOST_INT_STATUS),
669 card->reg->host_intstatus, &ret);
671 BT_ERR("sdio_writeb: clear int status register failed");
676 spin_lock_irqsave(&priv->driver_lock, flags);
678 spin_unlock_irqrestore(&priv->driver_lock, flags);
680 btmrvl_interrupt(priv);
683 static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card *card)
685 struct sdio_func *func;
689 if (!card || !card->func) {
690 BT_ERR("Error: card or function is NULL!");
697 sdio_claim_host(func);
699 ret = sdio_enable_func(func);
701 BT_ERR("sdio_enable_func() failed: ret=%d", ret);
706 ret = sdio_claim_irq(func, btmrvl_sdio_interrupt);
708 BT_ERR("sdio_claim_irq failed: ret=%d", ret);
713 ret = sdio_set_block_size(card->func, SDIO_BLOCK_SIZE);
715 BT_ERR("cannot set SDIO block size");
720 reg = sdio_readb(func, card->reg->io_port_0, &ret);
728 reg = sdio_readb(func, card->reg->io_port_1, &ret);
734 card->ioport |= (reg << 8);
736 reg = sdio_readb(func, card->reg->io_port_2, &ret);
742 card->ioport |= (reg << 16);
744 BT_DBG("SDIO FUNC%d IO port: 0x%x", func->num, card->ioport);
746 sdio_set_drvdata(func, card);
748 sdio_release_host(func);
753 sdio_release_irq(func);
756 sdio_disable_func(func);
759 sdio_release_host(func);
765 static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card *card)
767 if (card && card->func) {
768 sdio_claim_host(card->func);
769 sdio_release_irq(card->func);
770 sdio_disable_func(card->func);
771 sdio_release_host(card->func);
772 sdio_set_drvdata(card->func, NULL);
778 static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card *card)
782 if (!card || !card->func)
785 sdio_claim_host(card->func);
787 ret = btmrvl_sdio_enable_host_int_mask(card, HIM_ENABLE);
789 btmrvl_sdio_get_rx_unit(card);
791 sdio_release_host(card->func);
796 static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card *card)
800 if (!card || !card->func)
803 sdio_claim_host(card->func);
805 ret = btmrvl_sdio_disable_host_int_mask(card, HIM_DISABLE);
807 sdio_release_host(card->func);
812 static int btmrvl_sdio_host_to_card(struct btmrvl_private *priv,
815 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
824 if (!card || !card->func) {
825 BT_ERR("card or function is NULL!");
830 if ((unsigned long) payload & (BTSDIO_DMA_ALIGN - 1)) {
831 tmpbufsz = ALIGN_SZ(nb, BTSDIO_DMA_ALIGN);
832 tmpbuf = kzalloc(tmpbufsz, GFP_KERNEL);
835 buf = (u8 *) ALIGN_ADDR(tmpbuf, BTSDIO_DMA_ALIGN);
836 memcpy(buf, payload, nb);
839 blksz = SDIO_BLOCK_SIZE;
840 buf_block_len = (nb + blksz - 1) / blksz;
842 sdio_claim_host(card->func);
845 /* Transfer data to card */
846 ret = sdio_writesb(card->func, card->ioport, buf,
847 buf_block_len * blksz);
850 BT_ERR("i=%d writesb failed: %d", i, ret);
851 print_hex_dump_bytes("", DUMP_PREFIX_OFFSET,
854 if (i > MAX_WRITE_IOMEM_RETRY)
859 priv->btmrvl_dev.tx_dnld_rdy = false;
862 sdio_release_host(card->func);
868 static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card *card)
872 int pollnum = MAX_POLL_TRIES;
874 if (!card || !card->func) {
875 BT_ERR("card or function is NULL!");
878 sdio_claim_host(card->func);
880 if (!btmrvl_sdio_verify_fw_download(card, 1)) {
881 BT_DBG("Firmware already downloaded!");
885 /* Check if other function driver is downloading the firmware */
886 fws0 = sdio_readb(card->func, card->reg->card_fw_status0, &ret);
888 BT_ERR("Failed to read FW downloading status!");
893 BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0);
895 /* Give other function more time to download the firmware */
899 ret = btmrvl_sdio_download_helper(card);
901 BT_ERR("Failed to download helper!");
907 if (btmrvl_sdio_download_fw_w_helper(card)) {
908 BT_ERR("Failed to download firmware!");
914 if (btmrvl_sdio_verify_fw_download(card, pollnum)) {
915 BT_ERR("FW failed to be active in time!");
921 sdio_release_host(card->func);
926 static int btmrvl_sdio_wakeup_fw(struct btmrvl_private *priv)
928 struct btmrvl_sdio_card *card = priv->btmrvl_dev.card;
931 if (!card || !card->func) {
932 BT_ERR("card or function is NULL!");
936 sdio_claim_host(card->func);
938 sdio_writeb(card->func, HOST_POWER_UP, card->reg->cfg, &ret);
940 sdio_release_host(card->func);
942 BT_DBG("wake up firmware");
947 static int btmrvl_sdio_probe(struct sdio_func *func,
948 const struct sdio_device_id *id)
951 struct btmrvl_private *priv = NULL;
952 struct btmrvl_sdio_card *card = NULL;
954 BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
955 id->vendor, id->device, id->class, func->num);
957 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL);
963 if (id->driver_data) {
964 struct btmrvl_sdio_device *data = (void *) id->driver_data;
965 card->helper = data->helper;
966 card->firmware = data->firmware;
967 card->reg = data->reg;
968 card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
971 if (btmrvl_sdio_register_dev(card) < 0) {
972 BT_ERR("Failed to register BT device!");
976 /* Disable the interrupts on the card */
977 btmrvl_sdio_disable_host_int(card);
979 if (btmrvl_sdio_download_fw(card)) {
980 BT_ERR("Downloading firmware failed!");
987 btmrvl_sdio_enable_host_int(card);
989 priv = btmrvl_add_card(card);
991 BT_ERR("Initializing card failed!");
993 goto disable_host_int;
998 /* Initialize the interface specific function pointers */
999 priv->hw_host_to_card = btmrvl_sdio_host_to_card;
1000 priv->hw_wakeup_firmware = btmrvl_sdio_wakeup_fw;
1001 priv->hw_process_int_status = btmrvl_sdio_process_int_status;
1003 if (btmrvl_register_hdev(priv)) {
1004 BT_ERR("Register hdev failed!");
1006 goto disable_host_int;
1009 priv->btmrvl_dev.psmode = 1;
1010 btmrvl_enable_ps(priv);
1012 priv->btmrvl_dev.gpio_gap = 0xffff;
1013 btmrvl_send_hscfg_cmd(priv);
1018 btmrvl_sdio_disable_host_int(card);
1020 btmrvl_sdio_unregister_dev(card);
1024 static void btmrvl_sdio_remove(struct sdio_func *func)
1026 struct btmrvl_sdio_card *card;
1029 card = sdio_get_drvdata(func);
1031 /* Send SHUTDOWN command & disable interrupt
1032 * if user removes the module.
1035 btmrvl_send_module_cfg_cmd(card->priv,
1036 MODULE_SHUTDOWN_REQ);
1037 btmrvl_sdio_disable_host_int(card);
1039 BT_DBG("unregester dev");
1040 btmrvl_sdio_unregister_dev(card);
1041 btmrvl_remove_card(card->priv);
1046 static int btmrvl_sdio_suspend(struct device *dev)
1048 struct sdio_func *func = dev_to_sdio_func(dev);
1049 struct btmrvl_sdio_card *card;
1050 struct btmrvl_private *priv;
1051 mmc_pm_flag_t pm_flags;
1052 struct hci_dev *hcidev;
1055 pm_flags = sdio_get_host_pm_caps(func);
1056 BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func),
1058 if (!(pm_flags & MMC_PM_KEEP_POWER)) {
1059 BT_ERR("%s: cannot remain alive while suspended",
1060 sdio_func_id(func));
1063 card = sdio_get_drvdata(func);
1064 if (!card || !card->priv) {
1065 BT_ERR("card or priv structure is not valid");
1069 BT_ERR("sdio_func is not specified");
1075 if (priv->adapter->hs_state != HS_ACTIVATED) {
1076 if (btmrvl_enable_hs(priv)) {
1077 BT_ERR("HS not actived, suspend failed!");
1081 hcidev = priv->btmrvl_dev.hcidev;
1082 BT_DBG("%s: SDIO suspend", hcidev->name);
1083 hci_suspend_dev(hcidev);
1084 skb_queue_purge(&priv->adapter->tx_queue);
1086 priv->adapter->is_suspended = true;
1088 /* We will keep the power when hs enabled successfully */
1089 if (priv->adapter->hs_state == HS_ACTIVATED) {
1090 BT_DBG("suspend with MMC_PM_KEEP_POWER");
1091 return sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
1093 BT_DBG("suspend without MMC_PM_KEEP_POWER");
1098 static int btmrvl_sdio_resume(struct device *dev)
1100 struct sdio_func *func = dev_to_sdio_func(dev);
1101 struct btmrvl_sdio_card *card;
1102 struct btmrvl_private *priv;
1103 mmc_pm_flag_t pm_flags;
1104 struct hci_dev *hcidev;
1107 pm_flags = sdio_get_host_pm_caps(func);
1108 BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func),
1110 card = sdio_get_drvdata(func);
1111 if (!card || !card->priv) {
1112 BT_ERR("card or priv structure is not valid");
1116 BT_ERR("sdio_func is not specified");
1121 if (!priv->adapter->is_suspended) {
1122 BT_DBG("device already resumed");
1126 priv->adapter->is_suspended = false;
1127 hcidev = priv->btmrvl_dev.hcidev;
1128 BT_DBG("%s: SDIO resume", hcidev->name);
1129 hci_resume_dev(hcidev);
1130 priv->hw_wakeup_firmware(priv);
1131 priv->adapter->hs_state = HS_DEACTIVATED;
1132 BT_DBG("%s: HS DEACTIVATED in resume!", hcidev->name);
1137 static const struct dev_pm_ops btmrvl_sdio_pm_ops = {
1138 .suspend = btmrvl_sdio_suspend,
1139 .resume = btmrvl_sdio_resume,
1142 static struct sdio_driver bt_mrvl_sdio = {
1143 .name = "btmrvl_sdio",
1144 .id_table = btmrvl_sdio_ids,
1145 .probe = btmrvl_sdio_probe,
1146 .remove = btmrvl_sdio_remove,
1148 .owner = THIS_MODULE,
1149 .pm = &btmrvl_sdio_pm_ops,
1153 static int __init btmrvl_sdio_init_module(void)
1155 if (sdio_register_driver(&bt_mrvl_sdio) != 0) {
1156 BT_ERR("SDIO Driver Registration Failed");
1160 /* Clear the flag in case user removes the card. */
1166 static void __exit btmrvl_sdio_exit_module(void)
1168 /* Set the flag as user is removing this module. */
1171 sdio_unregister_driver(&bt_mrvl_sdio);
1174 module_init(btmrvl_sdio_init_module);
1175 module_exit(btmrvl_sdio_exit_module);
1177 MODULE_AUTHOR("Marvell International Ltd.");
1178 MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION);
1179 MODULE_VERSION(VERSION);
1180 MODULE_LICENSE("GPL v2");
1181 MODULE_FIRMWARE("sd8688_helper.bin");
1182 MODULE_FIRMWARE("sd8688.bin");
1183 MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
1184 MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");