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 SD8797 Bluetooth device */
114 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, 0x912A),
115 .driver_data
= (unsigned long) &btmrvl_sdio_sd8797
},
117 { } /* Terminating entry */
120 MODULE_DEVICE_TABLE(sdio
, btmrvl_sdio_ids
);
122 static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card
*card
)
127 reg
= sdio_readb(card
->func
, card
->reg
->card_rx_unit
, &ret
);
134 static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card
*card
, u16
*dat
)
141 fws0
= sdio_readb(card
->func
, card
->reg
->card_fw_status0
, &ret
);
145 fws1
= sdio_readb(card
->func
, card
->reg
->card_fw_status1
, &ret
);
149 *dat
= (((u16
) fws1
) << 8) | fws0
;
154 static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card
*card
, u16
*dat
)
159 reg
= sdio_readb(card
->func
, card
->reg
->card_rx_len
, &ret
);
161 *dat
= (u16
) reg
<< card
->rx_unit
;
166 static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card
*card
,
171 sdio_writeb(card
->func
, mask
, card
->reg
->host_int_mask
, &ret
);
173 BT_ERR("Unable to enable the host interrupt!");
180 static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card
*card
,
186 host_int_mask
= sdio_readb(card
->func
, card
->reg
->host_int_mask
, &ret
);
190 host_int_mask
&= ~mask
;
192 sdio_writeb(card
->func
, host_int_mask
, card
->reg
->host_int_mask
, &ret
);
194 BT_ERR("Unable to disable the host interrupt!");
201 static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card
*card
, u8 bits
)
207 for (tries
= 0; tries
< MAX_POLL_TRIES
* 1000; tries
++) {
208 status
= sdio_readb(card
->func
, card
->reg
->card_status
, &ret
);
211 if ((status
& bits
) == bits
)
220 BT_ERR("FAILED! ret=%d", ret
);
225 static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card
*card
,
228 int ret
= -ETIMEDOUT
;
232 /* Wait for firmware to become ready */
233 for (tries
= 0; tries
< pollnum
; tries
++) {
234 if (btmrvl_sdio_read_fw_status(card
, &firmwarestat
) < 0)
237 if (firmwarestat
== FIRMWARE_READY
) {
248 static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card
*card
)
250 const struct firmware
*fw_helper
= NULL
;
251 const u8
*helper
= NULL
;
253 void *tmphlprbuf
= NULL
;
254 int tmphlprbufsz
, hlprblknow
, helperlen
;
258 ret
= request_firmware(&fw_helper
, card
->helper
,
260 if ((ret
< 0) || !fw_helper
) {
261 BT_ERR("request_firmware(helper) failed, error code = %d",
267 helper
= fw_helper
->data
;
268 helperlen
= fw_helper
->size
;
270 BT_DBG("Downloading helper image (%d bytes), block size %d bytes",
271 helperlen
, SDIO_BLOCK_SIZE
);
273 tmphlprbufsz
= ALIGN_SZ(BTM_UPLD_SIZE
, BTSDIO_DMA_ALIGN
);
275 tmphlprbuf
= kzalloc(tmphlprbufsz
, GFP_KERNEL
);
277 BT_ERR("Unable to allocate buffer for helper."
278 " Terminating download");
283 helperbuf
= (u8
*) ALIGN_ADDR(tmphlprbuf
, BTSDIO_DMA_ALIGN
);
285 /* Perform helper data transfer */
286 tx_len
= (FIRMWARE_TRANSFER_NBLOCK
* SDIO_BLOCK_SIZE
)
291 ret
= btmrvl_sdio_poll_card_status(card
,
292 CARD_IO_READY
| DN_LD_CARD_RDY
);
294 BT_ERR("Helper download poll status timeout @ %d",
299 /* Check if there is more data? */
300 if (hlprblknow
>= helperlen
)
303 if (helperlen
- hlprblknow
< tx_len
)
304 tx_len
= helperlen
- hlprblknow
;
307 helperbuf
[0] = ((tx_len
& 0x000000ff) >> 0);
308 helperbuf
[1] = ((tx_len
& 0x0000ff00) >> 8);
309 helperbuf
[2] = ((tx_len
& 0x00ff0000) >> 16);
310 helperbuf
[3] = ((tx_len
& 0xff000000) >> 24);
312 memcpy(&helperbuf
[SDIO_HEADER_LEN
], &helper
[hlprblknow
],
315 /* Now send the data */
316 ret
= sdio_writesb(card
->func
, card
->ioport
, helperbuf
,
317 FIRMWARE_TRANSFER_NBLOCK
* SDIO_BLOCK_SIZE
);
319 BT_ERR("IO error during helper download @ %d",
324 hlprblknow
+= tx_len
;
327 BT_DBG("Transferring helper image EOF block");
329 memset(helperbuf
, 0x0, SDIO_BLOCK_SIZE
);
331 ret
= sdio_writesb(card
->func
, card
->ioport
, helperbuf
,
334 BT_ERR("IO error in writing helper image EOF block");
342 release_firmware(fw_helper
);
346 static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card
*card
)
348 const struct firmware
*fw_firmware
= NULL
;
349 const u8
*firmware
= NULL
;
350 int firmwarelen
, tmpfwbufsz
, ret
;
351 unsigned int tries
, offset
;
353 void *tmpfwbuf
= NULL
;
355 u16 len
, blksz_dl
= card
->sd_blksz_fw_dl
;
356 int txlen
= 0, tx_blocks
= 0, count
= 0;
358 ret
= request_firmware(&fw_firmware
, card
->firmware
,
360 if ((ret
< 0) || !fw_firmware
) {
361 BT_ERR("request_firmware(firmware) failed, error code = %d",
367 firmware
= fw_firmware
->data
;
368 firmwarelen
= fw_firmware
->size
;
370 BT_DBG("Downloading FW image (%d bytes)", firmwarelen
);
372 tmpfwbufsz
= ALIGN_SZ(BTM_UPLD_SIZE
, BTSDIO_DMA_ALIGN
);
373 tmpfwbuf
= kzalloc(tmpfwbufsz
, GFP_KERNEL
);
375 BT_ERR("Unable to allocate buffer for firmware."
376 " Terminating download");
381 /* Ensure aligned firmware buffer */
382 fwbuf
= (u8
*) ALIGN_ADDR(tmpfwbuf
, BTSDIO_DMA_ALIGN
);
384 /* Perform firmware data transfer */
387 ret
= btmrvl_sdio_poll_card_status(card
,
388 CARD_IO_READY
| DN_LD_CARD_RDY
);
390 BT_ERR("FW download with helper poll status"
391 " timeout @ %d", offset
);
395 /* Check if there is more data ? */
396 if (offset
>= firmwarelen
)
399 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
400 base0
= sdio_readb(card
->func
,
401 card
->reg
->sq_read_base_addr_a0
, &ret
);
403 BT_ERR("BASE0 register read failed:"
404 " base0 = 0x%04X(%d)."
405 " Terminating download",
410 base1
= sdio_readb(card
->func
,
411 card
->reg
->sq_read_base_addr_a1
, &ret
);
413 BT_ERR("BASE1 register read failed:"
414 " base1 = 0x%04X(%d)."
415 " Terminating download",
421 len
= (((u16
) base1
) << 8) | base0
;
430 else if (len
> BTM_UPLD_SIZE
) {
431 BT_ERR("FW download failure @%d, invalid length %d",
441 if (count
> MAX_WRITE_IOMEM_RETRY
) {
442 BT_ERR("FW download failure @%d, "
443 "over max retry count", offset
);
447 BT_ERR("FW CRC error indicated by the helper: "
448 "len = 0x%04X, txlen = %d", len
, txlen
);
450 /* Set txlen to 0 so as to resend from same offset */
456 if (firmwarelen
- offset
< txlen
)
457 txlen
= firmwarelen
- offset
;
459 tx_blocks
= (txlen
+ blksz_dl
- 1) / blksz_dl
;
461 memcpy(fwbuf
, &firmware
[offset
], txlen
);
464 ret
= sdio_writesb(card
->func
, card
->ioport
, fwbuf
,
465 tx_blocks
* blksz_dl
);
468 BT_ERR("FW download, writesb(%d) failed @%d",
470 sdio_writeb(card
->func
, HOST_CMD53_FIN
,
471 card
->reg
->cfg
, &ret
);
473 BT_ERR("writeb failed (CFG)");
479 BT_DBG("FW download over, size %d bytes", offset
);
485 release_firmware(fw_firmware
);
489 static int btmrvl_sdio_card_to_host(struct btmrvl_private
*priv
)
492 int ret
, buf_block_len
, blksz
;
493 struct sk_buff
*skb
= NULL
;
496 struct hci_dev
*hdev
= priv
->btmrvl_dev
.hcidev
;
497 struct btmrvl_sdio_card
*card
= priv
->btmrvl_dev
.card
;
499 if (!card
|| !card
->func
) {
500 BT_ERR("card or function is NULL!");
505 /* Read the length of data to be transferred */
506 ret
= btmrvl_sdio_read_rx_len(card
, &buf_len
);
508 BT_ERR("read rx_len failed");
513 blksz
= SDIO_BLOCK_SIZE
;
514 buf_block_len
= (buf_len
+ blksz
- 1) / blksz
;
516 if (buf_len
<= SDIO_HEADER_LEN
517 || (buf_block_len
* blksz
) > ALLOC_BUF_SIZE
) {
518 BT_ERR("invalid packet length: %d", buf_len
);
523 /* Allocate buffer */
524 skb
= bt_skb_alloc(buf_block_len
* blksz
+ BTSDIO_DMA_ALIGN
,
527 BT_ERR("No free skb");
531 if ((unsigned long) skb
->data
& (BTSDIO_DMA_ALIGN
- 1)) {
532 skb_put(skb
, (unsigned long) skb
->data
&
533 (BTSDIO_DMA_ALIGN
- 1));
534 skb_pull(skb
, (unsigned long) skb
->data
&
535 (BTSDIO_DMA_ALIGN
- 1));
540 ret
= sdio_readsb(card
->func
, payload
, card
->ioport
,
541 buf_block_len
* blksz
);
543 BT_ERR("readsb failed: %d", ret
);
548 /* This is SDIO specific header length: byte[2][1][0], type: byte[3]
549 * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor)
552 buf_len
= payload
[0];
553 buf_len
|= (u16
) payload
[1] << 8;
557 case HCI_ACLDATA_PKT
:
558 case HCI_SCODATA_PKT
:
560 bt_cb(skb
)->pkt_type
= type
;
561 skb
->dev
= (void *)hdev
;
562 skb_put(skb
, buf_len
);
563 skb_pull(skb
, SDIO_HEADER_LEN
);
565 if (type
== HCI_EVENT_PKT
) {
566 if (btmrvl_check_evtpkt(priv
, skb
))
571 hdev
->stat
.byte_rx
+= buf_len
;
574 case MRVL_VENDOR_PKT
:
575 bt_cb(skb
)->pkt_type
= HCI_VENDOR_PKT
;
576 skb
->dev
= (void *)hdev
;
577 skb_put(skb
, buf_len
);
578 skb_pull(skb
, SDIO_HEADER_LEN
);
580 if (btmrvl_process_event(priv
, skb
))
583 hdev
->stat
.byte_rx
+= buf_len
;
587 BT_ERR("Unknown packet type:%d", type
);
588 print_hex_dump_bytes("", DUMP_PREFIX_OFFSET
, payload
,
589 blksz
* buf_block_len
);
606 static int btmrvl_sdio_process_int_status(struct btmrvl_private
*priv
)
610 struct btmrvl_sdio_card
*card
= priv
->btmrvl_dev
.card
;
612 spin_lock_irqsave(&priv
->driver_lock
, flags
);
615 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
617 sdio_claim_host(card
->func
);
618 if (ireg
& DN_LD_HOST_INT_STATUS
) {
619 if (priv
->btmrvl_dev
.tx_dnld_rdy
)
620 BT_DBG("tx_done already received: "
621 " int_status=0x%x", ireg
);
623 priv
->btmrvl_dev
.tx_dnld_rdy
= true;
626 if (ireg
& UP_LD_HOST_INT_STATUS
)
627 btmrvl_sdio_card_to_host(priv
);
629 sdio_release_host(card
->func
);
634 static void btmrvl_sdio_interrupt(struct sdio_func
*func
)
636 struct btmrvl_private
*priv
;
637 struct btmrvl_sdio_card
*card
;
642 card
= sdio_get_drvdata(func
);
643 if (!card
|| !card
->priv
) {
644 BT_ERR("sbi_interrupt(%p) card or priv is "
645 "NULL, card=%p\n", func
, card
);
651 ireg
= sdio_readb(card
->func
, card
->reg
->host_intstatus
, &ret
);
653 BT_ERR("sdio_readb: read int status register failed");
659 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
660 * Clear the interrupt status register and re-enable the
663 BT_DBG("ireg = 0x%x", ireg
);
665 sdio_writeb(card
->func
, ~(ireg
) & (DN_LD_HOST_INT_STATUS
|
666 UP_LD_HOST_INT_STATUS
),
667 card
->reg
->host_intstatus
, &ret
);
669 BT_ERR("sdio_writeb: clear int status register failed");
674 spin_lock_irqsave(&priv
->driver_lock
, flags
);
676 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
678 btmrvl_interrupt(priv
);
681 static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card
*card
)
683 struct sdio_func
*func
;
687 if (!card
|| !card
->func
) {
688 BT_ERR("Error: card or function is NULL!");
695 sdio_claim_host(func
);
697 ret
= sdio_enable_func(func
);
699 BT_ERR("sdio_enable_func() failed: ret=%d", ret
);
704 ret
= sdio_claim_irq(func
, btmrvl_sdio_interrupt
);
706 BT_ERR("sdio_claim_irq failed: ret=%d", ret
);
711 ret
= sdio_set_block_size(card
->func
, SDIO_BLOCK_SIZE
);
713 BT_ERR("cannot set SDIO block size");
718 reg
= sdio_readb(func
, card
->reg
->io_port_0
, &ret
);
726 reg
= sdio_readb(func
, card
->reg
->io_port_1
, &ret
);
732 card
->ioport
|= (reg
<< 8);
734 reg
= sdio_readb(func
, card
->reg
->io_port_2
, &ret
);
740 card
->ioport
|= (reg
<< 16);
742 BT_DBG("SDIO FUNC%d IO port: 0x%x", func
->num
, card
->ioport
);
744 sdio_set_drvdata(func
, card
);
746 sdio_release_host(func
);
751 sdio_release_irq(func
);
754 sdio_disable_func(func
);
757 sdio_release_host(func
);
763 static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card
*card
)
765 if (card
&& card
->func
) {
766 sdio_claim_host(card
->func
);
767 sdio_release_irq(card
->func
);
768 sdio_disable_func(card
->func
);
769 sdio_release_host(card
->func
);
770 sdio_set_drvdata(card
->func
, NULL
);
776 static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card
*card
)
780 if (!card
|| !card
->func
)
783 sdio_claim_host(card
->func
);
785 ret
= btmrvl_sdio_enable_host_int_mask(card
, HIM_ENABLE
);
787 btmrvl_sdio_get_rx_unit(card
);
789 sdio_release_host(card
->func
);
794 static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card
*card
)
798 if (!card
|| !card
->func
)
801 sdio_claim_host(card
->func
);
803 ret
= btmrvl_sdio_disable_host_int_mask(card
, HIM_DISABLE
);
805 sdio_release_host(card
->func
);
810 static int btmrvl_sdio_host_to_card(struct btmrvl_private
*priv
,
813 struct btmrvl_sdio_card
*card
= priv
->btmrvl_dev
.card
;
822 if (!card
|| !card
->func
) {
823 BT_ERR("card or function is NULL!");
828 if ((unsigned long) payload
& (BTSDIO_DMA_ALIGN
- 1)) {
829 tmpbufsz
= ALIGN_SZ(nb
, BTSDIO_DMA_ALIGN
);
830 tmpbuf
= kzalloc(tmpbufsz
, GFP_KERNEL
);
833 buf
= (u8
*) ALIGN_ADDR(tmpbuf
, BTSDIO_DMA_ALIGN
);
834 memcpy(buf
, payload
, nb
);
837 blksz
= SDIO_BLOCK_SIZE
;
838 buf_block_len
= (nb
+ blksz
- 1) / blksz
;
840 sdio_claim_host(card
->func
);
843 /* Transfer data to card */
844 ret
= sdio_writesb(card
->func
, card
->ioport
, buf
,
845 buf_block_len
* blksz
);
848 BT_ERR("i=%d writesb failed: %d", i
, ret
);
849 print_hex_dump_bytes("", DUMP_PREFIX_OFFSET
,
852 if (i
> MAX_WRITE_IOMEM_RETRY
)
857 priv
->btmrvl_dev
.tx_dnld_rdy
= false;
860 sdio_release_host(card
->func
);
866 static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card
*card
)
870 int pollnum
= MAX_POLL_TRIES
;
872 if (!card
|| !card
->func
) {
873 BT_ERR("card or function is NULL!");
876 sdio_claim_host(card
->func
);
878 if (!btmrvl_sdio_verify_fw_download(card
, 1)) {
879 BT_DBG("Firmware already downloaded!");
883 /* Check if other function driver is downloading the firmware */
884 fws0
= sdio_readb(card
->func
, card
->reg
->card_fw_status0
, &ret
);
886 BT_ERR("Failed to read FW downloading status!");
891 BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0
);
893 /* Give other function more time to download the firmware */
897 ret
= btmrvl_sdio_download_helper(card
);
899 BT_ERR("Failed to download helper!");
905 if (btmrvl_sdio_download_fw_w_helper(card
)) {
906 BT_ERR("Failed to download firmware!");
912 if (btmrvl_sdio_verify_fw_download(card
, pollnum
)) {
913 BT_ERR("FW failed to be active in time!");
919 sdio_release_host(card
->func
);
924 static int btmrvl_sdio_wakeup_fw(struct btmrvl_private
*priv
)
926 struct btmrvl_sdio_card
*card
= priv
->btmrvl_dev
.card
;
929 if (!card
|| !card
->func
) {
930 BT_ERR("card or function is NULL!");
934 sdio_claim_host(card
->func
);
936 sdio_writeb(card
->func
, HOST_POWER_UP
, card
->reg
->cfg
, &ret
);
938 sdio_release_host(card
->func
);
940 BT_DBG("wake up firmware");
945 static int btmrvl_sdio_probe(struct sdio_func
*func
,
946 const struct sdio_device_id
*id
)
949 struct btmrvl_private
*priv
= NULL
;
950 struct btmrvl_sdio_card
*card
= NULL
;
952 BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
953 id
->vendor
, id
->device
, id
->class, func
->num
);
955 card
= kzalloc(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!");
977 /* Disable the interrupts on the card */
978 btmrvl_sdio_disable_host_int(card
);
980 if (btmrvl_sdio_download_fw(card
)) {
981 BT_ERR("Downloading firmware failed!");
988 btmrvl_sdio_enable_host_int(card
);
990 priv
= btmrvl_add_card(card
);
992 BT_ERR("Initializing card failed!");
994 goto disable_host_int
;
999 /* Initialize the interface specific function pointers */
1000 priv
->hw_host_to_card
= btmrvl_sdio_host_to_card
;
1001 priv
->hw_wakeup_firmware
= btmrvl_sdio_wakeup_fw
;
1002 priv
->hw_process_int_status
= btmrvl_sdio_process_int_status
;
1004 if (btmrvl_register_hdev(priv
)) {
1005 BT_ERR("Register hdev failed!");
1007 goto disable_host_int
;
1010 priv
->btmrvl_dev
.psmode
= 1;
1011 btmrvl_enable_ps(priv
);
1013 priv
->btmrvl_dev
.gpio_gap
= 0xffff;
1014 btmrvl_send_hscfg_cmd(priv
);
1019 btmrvl_sdio_disable_host_int(card
);
1021 btmrvl_sdio_unregister_dev(card
);
1028 static void btmrvl_sdio_remove(struct sdio_func
*func
)
1030 struct btmrvl_sdio_card
*card
;
1033 card
= sdio_get_drvdata(func
);
1035 /* Send SHUTDOWN command & disable interrupt
1036 * if user removes the module.
1039 btmrvl_send_module_cfg_cmd(card
->priv
,
1040 MODULE_SHUTDOWN_REQ
);
1041 btmrvl_sdio_disable_host_int(card
);
1043 BT_DBG("unregester dev");
1044 btmrvl_sdio_unregister_dev(card
);
1045 btmrvl_remove_card(card
->priv
);
1051 static int btmrvl_sdio_suspend(struct device
*dev
)
1053 struct sdio_func
*func
= dev_to_sdio_func(dev
);
1054 struct btmrvl_sdio_card
*card
;
1055 struct btmrvl_private
*priv
;
1056 mmc_pm_flag_t pm_flags
;
1057 struct hci_dev
*hcidev
;
1060 pm_flags
= sdio_get_host_pm_caps(func
);
1061 BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func
),
1063 if (!(pm_flags
& MMC_PM_KEEP_POWER
)) {
1064 BT_ERR("%s: cannot remain alive while suspended",
1065 sdio_func_id(func
));
1068 card
= sdio_get_drvdata(func
);
1069 if (!card
|| !card
->priv
) {
1070 BT_ERR("card or priv structure is not valid");
1074 BT_ERR("sdio_func is not specified");
1080 if (priv
->adapter
->hs_state
!= HS_ACTIVATED
) {
1081 if (btmrvl_enable_hs(priv
)) {
1082 BT_ERR("HS not actived, suspend failed!");
1086 hcidev
= priv
->btmrvl_dev
.hcidev
;
1087 BT_DBG("%s: SDIO suspend", hcidev
->name
);
1088 hci_suspend_dev(hcidev
);
1089 skb_queue_purge(&priv
->adapter
->tx_queue
);
1091 priv
->adapter
->is_suspended
= true;
1093 /* We will keep the power when hs enabled successfully */
1094 if (priv
->adapter
->hs_state
== HS_ACTIVATED
) {
1095 BT_DBG("suspend with MMC_PM_KEEP_POWER");
1096 return sdio_set_host_pm_flags(func
, MMC_PM_KEEP_POWER
);
1098 BT_DBG("suspend without MMC_PM_KEEP_POWER");
1103 static int btmrvl_sdio_resume(struct device
*dev
)
1105 struct sdio_func
*func
= dev_to_sdio_func(dev
);
1106 struct btmrvl_sdio_card
*card
;
1107 struct btmrvl_private
*priv
;
1108 mmc_pm_flag_t pm_flags
;
1109 struct hci_dev
*hcidev
;
1112 pm_flags
= sdio_get_host_pm_caps(func
);
1113 BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func
),
1115 card
= sdio_get_drvdata(func
);
1116 if (!card
|| !card
->priv
) {
1117 BT_ERR("card or priv structure is not valid");
1121 BT_ERR("sdio_func is not specified");
1126 if (!priv
->adapter
->is_suspended
) {
1127 BT_DBG("device already resumed");
1131 priv
->adapter
->is_suspended
= false;
1132 hcidev
= priv
->btmrvl_dev
.hcidev
;
1133 BT_DBG("%s: SDIO resume", hcidev
->name
);
1134 hci_resume_dev(hcidev
);
1135 priv
->hw_wakeup_firmware(priv
);
1136 priv
->adapter
->hs_state
= HS_DEACTIVATED
;
1137 BT_DBG("%s: HS DEACTIVATED in resume!", hcidev
->name
);
1142 static const struct dev_pm_ops btmrvl_sdio_pm_ops
= {
1143 .suspend
= btmrvl_sdio_suspend
,
1144 .resume
= btmrvl_sdio_resume
,
1147 static struct sdio_driver bt_mrvl_sdio
= {
1148 .name
= "btmrvl_sdio",
1149 .id_table
= btmrvl_sdio_ids
,
1150 .probe
= btmrvl_sdio_probe
,
1151 .remove
= btmrvl_sdio_remove
,
1153 .owner
= THIS_MODULE
,
1154 .pm
= &btmrvl_sdio_pm_ops
,
1158 static int __init
btmrvl_sdio_init_module(void)
1160 if (sdio_register_driver(&bt_mrvl_sdio
) != 0) {
1161 BT_ERR("SDIO Driver Registration Failed");
1165 /* Clear the flag in case user removes the card. */
1171 static void __exit
btmrvl_sdio_exit_module(void)
1173 /* Set the flag as user is removing this module. */
1176 sdio_unregister_driver(&bt_mrvl_sdio
);
1179 module_init(btmrvl_sdio_init_module
);
1180 module_exit(btmrvl_sdio_exit_module
);
1182 MODULE_AUTHOR("Marvell International Ltd.");
1183 MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION
);
1184 MODULE_VERSION(VERSION
);
1185 MODULE_LICENSE("GPL v2");
1186 MODULE_FIRMWARE("sd8688_helper.bin");
1187 MODULE_FIRMWARE("sd8688.bin");
1188 MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
1189 MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");