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 btmrvl_check_evtpkt(priv
, skb
);
569 hdev
->stat
.byte_rx
+= buf_len
;
572 case MRVL_VENDOR_PKT
:
573 bt_cb(skb
)->pkt_type
= HCI_VENDOR_PKT
;
574 skb
->dev
= (void *)hdev
;
575 skb_put(skb
, buf_len
);
576 skb_pull(skb
, SDIO_HEADER_LEN
);
578 if (btmrvl_process_event(priv
, skb
))
581 hdev
->stat
.byte_rx
+= buf_len
;
585 BT_ERR("Unknown packet type:%d", type
);
586 print_hex_dump_bytes("", DUMP_PREFIX_OFFSET
, payload
,
587 blksz
* buf_block_len
);
604 static int btmrvl_sdio_process_int_status(struct btmrvl_private
*priv
)
608 struct btmrvl_sdio_card
*card
= priv
->btmrvl_dev
.card
;
610 spin_lock_irqsave(&priv
->driver_lock
, flags
);
613 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
615 sdio_claim_host(card
->func
);
616 if (ireg
& DN_LD_HOST_INT_STATUS
) {
617 if (priv
->btmrvl_dev
.tx_dnld_rdy
)
618 BT_DBG("tx_done already received: "
619 " int_status=0x%x", ireg
);
621 priv
->btmrvl_dev
.tx_dnld_rdy
= true;
624 if (ireg
& UP_LD_HOST_INT_STATUS
)
625 btmrvl_sdio_card_to_host(priv
);
627 sdio_release_host(card
->func
);
632 static void btmrvl_sdio_interrupt(struct sdio_func
*func
)
634 struct btmrvl_private
*priv
;
635 struct btmrvl_sdio_card
*card
;
640 card
= sdio_get_drvdata(func
);
641 if (!card
|| !card
->priv
) {
642 BT_ERR("sbi_interrupt(%p) card or priv is "
643 "NULL, card=%p\n", func
, card
);
649 ireg
= sdio_readb(card
->func
, card
->reg
->host_intstatus
, &ret
);
651 BT_ERR("sdio_readb: read int status register failed");
657 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
658 * Clear the interrupt status register and re-enable the
661 BT_DBG("ireg = 0x%x", ireg
);
663 sdio_writeb(card
->func
, ~(ireg
) & (DN_LD_HOST_INT_STATUS
|
664 UP_LD_HOST_INT_STATUS
),
665 card
->reg
->host_intstatus
, &ret
);
667 BT_ERR("sdio_writeb: clear int status register failed");
672 spin_lock_irqsave(&priv
->driver_lock
, flags
);
674 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
676 btmrvl_interrupt(priv
);
679 static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card
*card
)
681 struct sdio_func
*func
;
685 if (!card
|| !card
->func
) {
686 BT_ERR("Error: card or function is NULL!");
693 sdio_claim_host(func
);
695 ret
= sdio_enable_func(func
);
697 BT_ERR("sdio_enable_func() failed: ret=%d", ret
);
702 ret
= sdio_claim_irq(func
, btmrvl_sdio_interrupt
);
704 BT_ERR("sdio_claim_irq failed: ret=%d", ret
);
709 ret
= sdio_set_block_size(card
->func
, SDIO_BLOCK_SIZE
);
711 BT_ERR("cannot set SDIO block size");
716 reg
= sdio_readb(func
, card
->reg
->io_port_0
, &ret
);
724 reg
= sdio_readb(func
, card
->reg
->io_port_1
, &ret
);
730 card
->ioport
|= (reg
<< 8);
732 reg
= sdio_readb(func
, card
->reg
->io_port_2
, &ret
);
738 card
->ioport
|= (reg
<< 16);
740 BT_DBG("SDIO FUNC%d IO port: 0x%x", func
->num
, card
->ioport
);
742 sdio_set_drvdata(func
, card
);
744 sdio_release_host(func
);
749 sdio_release_irq(func
);
752 sdio_disable_func(func
);
755 sdio_release_host(func
);
761 static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card
*card
)
763 if (card
&& card
->func
) {
764 sdio_claim_host(card
->func
);
765 sdio_release_irq(card
->func
);
766 sdio_disable_func(card
->func
);
767 sdio_release_host(card
->func
);
768 sdio_set_drvdata(card
->func
, NULL
);
774 static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card
*card
)
778 if (!card
|| !card
->func
)
781 sdio_claim_host(card
->func
);
783 ret
= btmrvl_sdio_enable_host_int_mask(card
, HIM_ENABLE
);
785 btmrvl_sdio_get_rx_unit(card
);
787 sdio_release_host(card
->func
);
792 static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card
*card
)
796 if (!card
|| !card
->func
)
799 sdio_claim_host(card
->func
);
801 ret
= btmrvl_sdio_disable_host_int_mask(card
, HIM_DISABLE
);
803 sdio_release_host(card
->func
);
808 static int btmrvl_sdio_host_to_card(struct btmrvl_private
*priv
,
811 struct btmrvl_sdio_card
*card
= priv
->btmrvl_dev
.card
;
820 if (!card
|| !card
->func
) {
821 BT_ERR("card or function is NULL!");
826 if ((unsigned long) payload
& (BTSDIO_DMA_ALIGN
- 1)) {
827 tmpbufsz
= ALIGN_SZ(nb
, BTSDIO_DMA_ALIGN
);
828 tmpbuf
= kzalloc(tmpbufsz
, GFP_KERNEL
);
831 buf
= (u8
*) ALIGN_ADDR(tmpbuf
, BTSDIO_DMA_ALIGN
);
832 memcpy(buf
, payload
, nb
);
835 blksz
= SDIO_BLOCK_SIZE
;
836 buf_block_len
= (nb
+ blksz
- 1) / blksz
;
838 sdio_claim_host(card
->func
);
841 /* Transfer data to card */
842 ret
= sdio_writesb(card
->func
, card
->ioport
, buf
,
843 buf_block_len
* blksz
);
846 BT_ERR("i=%d writesb failed: %d", i
, ret
);
847 print_hex_dump_bytes("", DUMP_PREFIX_OFFSET
,
850 if (i
> MAX_WRITE_IOMEM_RETRY
)
855 priv
->btmrvl_dev
.tx_dnld_rdy
= false;
858 sdio_release_host(card
->func
);
864 static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card
*card
)
868 int pollnum
= MAX_POLL_TRIES
;
870 if (!card
|| !card
->func
) {
871 BT_ERR("card or function is NULL!");
874 sdio_claim_host(card
->func
);
876 if (!btmrvl_sdio_verify_fw_download(card
, 1)) {
877 BT_DBG("Firmware already downloaded!");
881 /* Check if other function driver is downloading the firmware */
882 fws0
= sdio_readb(card
->func
, card
->reg
->card_fw_status0
, &ret
);
884 BT_ERR("Failed to read FW downloading status!");
889 BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0
);
891 /* Give other function more time to download the firmware */
895 ret
= btmrvl_sdio_download_helper(card
);
897 BT_ERR("Failed to download helper!");
903 if (btmrvl_sdio_download_fw_w_helper(card
)) {
904 BT_ERR("Failed to download firmware!");
910 if (btmrvl_sdio_verify_fw_download(card
, pollnum
)) {
911 BT_ERR("FW failed to be active in time!");
917 sdio_release_host(card
->func
);
922 static int btmrvl_sdio_wakeup_fw(struct btmrvl_private
*priv
)
924 struct btmrvl_sdio_card
*card
= priv
->btmrvl_dev
.card
;
927 if (!card
|| !card
->func
) {
928 BT_ERR("card or function is NULL!");
932 sdio_claim_host(card
->func
);
934 sdio_writeb(card
->func
, HOST_POWER_UP
, card
->reg
->cfg
, &ret
);
936 sdio_release_host(card
->func
);
938 BT_DBG("wake up firmware");
943 static int btmrvl_sdio_probe(struct sdio_func
*func
,
944 const struct sdio_device_id
*id
)
947 struct btmrvl_private
*priv
= NULL
;
948 struct btmrvl_sdio_card
*card
= NULL
;
950 BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
951 id
->vendor
, id
->device
, id
->class, func
->num
);
953 card
= kzalloc(sizeof(*card
), GFP_KERNEL
);
961 if (id
->driver_data
) {
962 struct btmrvl_sdio_device
*data
= (void *) id
->driver_data
;
963 card
->helper
= data
->helper
;
964 card
->firmware
= data
->firmware
;
965 card
->reg
= data
->reg
;
966 card
->sd_blksz_fw_dl
= data
->sd_blksz_fw_dl
;
969 if (btmrvl_sdio_register_dev(card
) < 0) {
970 BT_ERR("Failed to register BT device!");
975 /* Disable the interrupts on the card */
976 btmrvl_sdio_disable_host_int(card
);
978 if (btmrvl_sdio_download_fw(card
)) {
979 BT_ERR("Downloading firmware failed!");
986 btmrvl_sdio_enable_host_int(card
);
988 priv
= btmrvl_add_card(card
);
990 BT_ERR("Initializing card failed!");
992 goto disable_host_int
;
997 /* Initialize the interface specific function pointers */
998 priv
->hw_host_to_card
= btmrvl_sdio_host_to_card
;
999 priv
->hw_wakeup_firmware
= btmrvl_sdio_wakeup_fw
;
1000 priv
->hw_process_int_status
= btmrvl_sdio_process_int_status
;
1002 if (btmrvl_register_hdev(priv
)) {
1003 BT_ERR("Register hdev failed!");
1005 goto disable_host_int
;
1008 priv
->btmrvl_dev
.psmode
= 1;
1009 btmrvl_enable_ps(priv
);
1011 priv
->btmrvl_dev
.gpio_gap
= 0xffff;
1012 btmrvl_send_hscfg_cmd(priv
);
1017 btmrvl_sdio_disable_host_int(card
);
1019 btmrvl_sdio_unregister_dev(card
);
1026 static void btmrvl_sdio_remove(struct sdio_func
*func
)
1028 struct btmrvl_sdio_card
*card
;
1031 card
= sdio_get_drvdata(func
);
1033 /* Send SHUTDOWN command & disable interrupt
1034 * if user removes the module.
1037 btmrvl_send_module_cfg_cmd(card
->priv
,
1038 MODULE_SHUTDOWN_REQ
);
1039 btmrvl_sdio_disable_host_int(card
);
1041 BT_DBG("unregester dev");
1042 btmrvl_sdio_unregister_dev(card
);
1043 btmrvl_remove_card(card
->priv
);
1049 static int btmrvl_sdio_suspend(struct device
*dev
)
1051 struct sdio_func
*func
= dev_to_sdio_func(dev
);
1052 struct btmrvl_sdio_card
*card
;
1053 struct btmrvl_private
*priv
;
1054 mmc_pm_flag_t pm_flags
;
1055 struct hci_dev
*hcidev
;
1058 pm_flags
= sdio_get_host_pm_caps(func
);
1059 BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func
),
1061 if (!(pm_flags
& MMC_PM_KEEP_POWER
)) {
1062 BT_ERR("%s: cannot remain alive while suspended",
1063 sdio_func_id(func
));
1066 card
= sdio_get_drvdata(func
);
1067 if (!card
|| !card
->priv
) {
1068 BT_ERR("card or priv structure is not valid");
1072 BT_ERR("sdio_func is not specified");
1078 if (priv
->adapter
->hs_state
!= HS_ACTIVATED
) {
1079 if (btmrvl_enable_hs(priv
)) {
1080 BT_ERR("HS not actived, suspend failed!");
1084 hcidev
= priv
->btmrvl_dev
.hcidev
;
1085 BT_DBG("%s: SDIO suspend", hcidev
->name
);
1086 hci_suspend_dev(hcidev
);
1087 skb_queue_purge(&priv
->adapter
->tx_queue
);
1089 priv
->adapter
->is_suspended
= true;
1091 /* We will keep the power when hs enabled successfully */
1092 if (priv
->adapter
->hs_state
== HS_ACTIVATED
) {
1093 BT_DBG("suspend with MMC_PM_KEEP_POWER");
1094 return sdio_set_host_pm_flags(func
, MMC_PM_KEEP_POWER
);
1096 BT_DBG("suspend without MMC_PM_KEEP_POWER");
1101 static int btmrvl_sdio_resume(struct device
*dev
)
1103 struct sdio_func
*func
= dev_to_sdio_func(dev
);
1104 struct btmrvl_sdio_card
*card
;
1105 struct btmrvl_private
*priv
;
1106 mmc_pm_flag_t pm_flags
;
1107 struct hci_dev
*hcidev
;
1110 pm_flags
= sdio_get_host_pm_caps(func
);
1111 BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func
),
1113 card
= sdio_get_drvdata(func
);
1114 if (!card
|| !card
->priv
) {
1115 BT_ERR("card or priv structure is not valid");
1119 BT_ERR("sdio_func is not specified");
1124 if (!priv
->adapter
->is_suspended
) {
1125 BT_DBG("device already resumed");
1129 priv
->adapter
->is_suspended
= false;
1130 hcidev
= priv
->btmrvl_dev
.hcidev
;
1131 BT_DBG("%s: SDIO resume", hcidev
->name
);
1132 hci_resume_dev(hcidev
);
1133 priv
->hw_wakeup_firmware(priv
);
1134 priv
->adapter
->hs_state
= HS_DEACTIVATED
;
1135 BT_DBG("%s: HS DEACTIVATED in resume!", hcidev
->name
);
1140 static const struct dev_pm_ops btmrvl_sdio_pm_ops
= {
1141 .suspend
= btmrvl_sdio_suspend
,
1142 .resume
= btmrvl_sdio_resume
,
1145 static struct sdio_driver bt_mrvl_sdio
= {
1146 .name
= "btmrvl_sdio",
1147 .id_table
= btmrvl_sdio_ids
,
1148 .probe
= btmrvl_sdio_probe
,
1149 .remove
= btmrvl_sdio_remove
,
1151 .owner
= THIS_MODULE
,
1152 .pm
= &btmrvl_sdio_pm_ops
,
1156 static int __init
btmrvl_sdio_init_module(void)
1158 if (sdio_register_driver(&bt_mrvl_sdio
) != 0) {
1159 BT_ERR("SDIO Driver Registration Failed");
1163 /* Clear the flag in case user removes the card. */
1169 static void __exit
btmrvl_sdio_exit_module(void)
1171 /* Set the flag as user is removing this module. */
1174 sdio_unregister_driver(&bt_mrvl_sdio
);
1177 module_init(btmrvl_sdio_init_module
);
1178 module_exit(btmrvl_sdio_exit_module
);
1180 MODULE_AUTHOR("Marvell International Ltd.");
1181 MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION
);
1182 MODULE_VERSION(VERSION
);
1183 MODULE_LICENSE("GPL v2");
1184 MODULE_FIRMWARE("sd8688_helper.bin");
1185 MODULE_FIRMWARE("sd8688.bin");
1186 MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
1187 MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");