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/slab.h>
23 #include <linux/mmc/sdio_ids.h>
24 #include <linux/mmc/sdio_func.h>
25 #include <linux/module.h>
27 #include <net/bluetooth/bluetooth.h>
28 #include <net/bluetooth/hci_core.h>
30 #include "btmrvl_drv.h"
31 #include "btmrvl_sdio.h"
35 /* The btmrvl_sdio_remove() callback function is called
36 * when user removes this module from kernel space or ejects
37 * the card from the slot. The driver handles these 2 cases
39 * If the user is removing the module, a MODULE_SHUTDOWN_REQ
40 * command is sent to firmware and interrupt will be disabled.
41 * If the card is removed, there is no need to send command
42 * or disable interrupt.
44 * The variable 'user_rmmod' is used to distinguish these two
45 * scenarios. This flag is initialized as FALSE in case the card
46 * is removed, and will be set to TRUE for module removal when
47 * module_exit function is called.
52 static const struct btmrvl_sdio_card_reg btmrvl_reg_8688
= {
54 .host_int_mask
= 0x04,
55 .host_intstatus
= 0x05,
57 .sq_read_base_addr_a0
= 0x10,
58 .sq_read_base_addr_a1
= 0x11,
59 .card_fw_status0
= 0x40,
60 .card_fw_status1
= 0x41,
67 static const struct btmrvl_sdio_card_reg btmrvl_reg_87xx
= {
69 .host_int_mask
= 0x02,
70 .host_intstatus
= 0x03,
72 .sq_read_base_addr_a0
= 0x40,
73 .sq_read_base_addr_a1
= 0x41,
74 .card_revision
= 0x5c,
75 .card_fw_status0
= 0x60,
76 .card_fw_status1
= 0x61,
84 static const struct btmrvl_sdio_card_reg btmrvl_reg_88xx
= {
86 .host_int_mask
= 0x02,
87 .host_intstatus
= 0x03,
89 .sq_read_base_addr_a0
= 0x60,
90 .sq_read_base_addr_a1
= 0x61,
91 .card_revision
= 0xbc,
92 .card_fw_status0
= 0xc0,
93 .card_fw_status1
= 0xc1,
101 static const struct btmrvl_sdio_device btmrvl_sdio_sd8688
= {
102 .helper
= "mrvl/sd8688_helper.bin",
103 .firmware
= "mrvl/sd8688.bin",
105 .reg
= &btmrvl_reg_8688
,
106 .sd_blksz_fw_dl
= 64,
109 static const struct btmrvl_sdio_device btmrvl_sdio_sd8787
= {
111 .firmware
= "mrvl/sd8787_uapsta.bin",
113 .reg
= &btmrvl_reg_87xx
,
114 .sd_blksz_fw_dl
= 256,
117 static const struct btmrvl_sdio_device btmrvl_sdio_sd8797
= {
119 .firmware
= "mrvl/sd8797_uapsta.bin",
120 .cal_data
= "mrvl/sd8797_caldata.conf",
121 .reg
= &btmrvl_reg_87xx
,
122 .sd_blksz_fw_dl
= 256,
125 static const struct btmrvl_sdio_device btmrvl_sdio_sd8897
= {
127 .firmware
= "mrvl/sd8897_uapsta.bin",
129 .reg
= &btmrvl_reg_88xx
,
130 .sd_blksz_fw_dl
= 256,
133 static const struct sdio_device_id btmrvl_sdio_ids
[] = {
134 /* Marvell SD8688 Bluetooth device */
135 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, 0x9105),
136 .driver_data
= (unsigned long) &btmrvl_sdio_sd8688
},
137 /* Marvell SD8787 Bluetooth device */
138 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, 0x911A),
139 .driver_data
= (unsigned long) &btmrvl_sdio_sd8787
},
140 /* Marvell SD8787 Bluetooth AMP device */
141 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, 0x911B),
142 .driver_data
= (unsigned long) &btmrvl_sdio_sd8787
},
143 /* Marvell SD8797 Bluetooth device */
144 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, 0x912A),
145 .driver_data
= (unsigned long) &btmrvl_sdio_sd8797
},
146 /* Marvell SD8897 Bluetooth device */
147 { SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL
, 0x912E),
148 .driver_data
= (unsigned long) &btmrvl_sdio_sd8897
},
150 { } /* Terminating entry */
153 MODULE_DEVICE_TABLE(sdio
, btmrvl_sdio_ids
);
155 static int btmrvl_sdio_get_rx_unit(struct btmrvl_sdio_card
*card
)
160 reg
= sdio_readb(card
->func
, card
->reg
->card_rx_unit
, &ret
);
167 static int btmrvl_sdio_read_fw_status(struct btmrvl_sdio_card
*card
, u16
*dat
)
174 fws0
= sdio_readb(card
->func
, card
->reg
->card_fw_status0
, &ret
);
178 fws1
= sdio_readb(card
->func
, card
->reg
->card_fw_status1
, &ret
);
182 *dat
= (((u16
) fws1
) << 8) | fws0
;
187 static int btmrvl_sdio_read_rx_len(struct btmrvl_sdio_card
*card
, u16
*dat
)
192 reg
= sdio_readb(card
->func
, card
->reg
->card_rx_len
, &ret
);
194 *dat
= (u16
) reg
<< card
->rx_unit
;
199 static int btmrvl_sdio_enable_host_int_mask(struct btmrvl_sdio_card
*card
,
204 sdio_writeb(card
->func
, mask
, card
->reg
->host_int_mask
, &ret
);
206 BT_ERR("Unable to enable the host interrupt!");
213 static int btmrvl_sdio_disable_host_int_mask(struct btmrvl_sdio_card
*card
,
219 host_int_mask
= sdio_readb(card
->func
, card
->reg
->host_int_mask
, &ret
);
223 host_int_mask
&= ~mask
;
225 sdio_writeb(card
->func
, host_int_mask
, card
->reg
->host_int_mask
, &ret
);
227 BT_ERR("Unable to disable the host interrupt!");
234 static int btmrvl_sdio_poll_card_status(struct btmrvl_sdio_card
*card
, u8 bits
)
240 for (tries
= 0; tries
< MAX_POLL_TRIES
* 1000; tries
++) {
241 status
= sdio_readb(card
->func
, card
->reg
->card_status
, &ret
);
244 if ((status
& bits
) == bits
)
253 BT_ERR("FAILED! ret=%d", ret
);
258 static int btmrvl_sdio_verify_fw_download(struct btmrvl_sdio_card
*card
,
264 /* Wait for firmware to become ready */
265 for (tries
= 0; tries
< pollnum
; tries
++) {
266 sdio_claim_host(card
->func
);
267 ret
= btmrvl_sdio_read_fw_status(card
, &firmwarestat
);
268 sdio_release_host(card
->func
);
272 if (firmwarestat
== FIRMWARE_READY
)
281 static int btmrvl_sdio_download_helper(struct btmrvl_sdio_card
*card
)
283 const struct firmware
*fw_helper
= NULL
;
284 const u8
*helper
= NULL
;
286 void *tmphlprbuf
= NULL
;
287 int tmphlprbufsz
, hlprblknow
, helperlen
;
291 ret
= request_firmware(&fw_helper
, card
->helper
,
293 if ((ret
< 0) || !fw_helper
) {
294 BT_ERR("request_firmware(helper) failed, error code = %d",
300 helper
= fw_helper
->data
;
301 helperlen
= fw_helper
->size
;
303 BT_DBG("Downloading helper image (%d bytes), block size %d bytes",
304 helperlen
, SDIO_BLOCK_SIZE
);
306 tmphlprbufsz
= ALIGN_SZ(BTM_UPLD_SIZE
, BTSDIO_DMA_ALIGN
);
308 tmphlprbuf
= kzalloc(tmphlprbufsz
, GFP_KERNEL
);
310 BT_ERR("Unable to allocate buffer for helper."
311 " Terminating download");
316 helperbuf
= (u8
*) ALIGN_ADDR(tmphlprbuf
, BTSDIO_DMA_ALIGN
);
318 /* Perform helper data transfer */
319 tx_len
= (FIRMWARE_TRANSFER_NBLOCK
* SDIO_BLOCK_SIZE
)
324 ret
= btmrvl_sdio_poll_card_status(card
,
325 CARD_IO_READY
| DN_LD_CARD_RDY
);
327 BT_ERR("Helper download poll status timeout @ %d",
332 /* Check if there is more data? */
333 if (hlprblknow
>= helperlen
)
336 if (helperlen
- hlprblknow
< tx_len
)
337 tx_len
= helperlen
- hlprblknow
;
340 helperbuf
[0] = ((tx_len
& 0x000000ff) >> 0);
341 helperbuf
[1] = ((tx_len
& 0x0000ff00) >> 8);
342 helperbuf
[2] = ((tx_len
& 0x00ff0000) >> 16);
343 helperbuf
[3] = ((tx_len
& 0xff000000) >> 24);
345 memcpy(&helperbuf
[SDIO_HEADER_LEN
], &helper
[hlprblknow
],
348 /* Now send the data */
349 ret
= sdio_writesb(card
->func
, card
->ioport
, helperbuf
,
350 FIRMWARE_TRANSFER_NBLOCK
* SDIO_BLOCK_SIZE
);
352 BT_ERR("IO error during helper download @ %d",
357 hlprblknow
+= tx_len
;
360 BT_DBG("Transferring helper image EOF block");
362 memset(helperbuf
, 0x0, SDIO_BLOCK_SIZE
);
364 ret
= sdio_writesb(card
->func
, card
->ioport
, helperbuf
,
367 BT_ERR("IO error in writing helper image EOF block");
375 release_firmware(fw_helper
);
379 static int btmrvl_sdio_download_fw_w_helper(struct btmrvl_sdio_card
*card
)
381 const struct firmware
*fw_firmware
= NULL
;
382 const u8
*firmware
= NULL
;
383 int firmwarelen
, tmpfwbufsz
, ret
;
384 unsigned int tries
, offset
;
386 void *tmpfwbuf
= NULL
;
388 u16 len
, blksz_dl
= card
->sd_blksz_fw_dl
;
389 int txlen
= 0, tx_blocks
= 0, count
= 0;
391 ret
= request_firmware(&fw_firmware
, card
->firmware
,
393 if ((ret
< 0) || !fw_firmware
) {
394 BT_ERR("request_firmware(firmware) failed, error code = %d",
400 firmware
= fw_firmware
->data
;
401 firmwarelen
= fw_firmware
->size
;
403 BT_DBG("Downloading FW image (%d bytes)", firmwarelen
);
405 tmpfwbufsz
= ALIGN_SZ(BTM_UPLD_SIZE
, BTSDIO_DMA_ALIGN
);
406 tmpfwbuf
= kzalloc(tmpfwbufsz
, GFP_KERNEL
);
408 BT_ERR("Unable to allocate buffer for firmware."
409 " Terminating download");
414 /* Ensure aligned firmware buffer */
415 fwbuf
= (u8
*) ALIGN_ADDR(tmpfwbuf
, BTSDIO_DMA_ALIGN
);
417 /* Perform firmware data transfer */
420 ret
= btmrvl_sdio_poll_card_status(card
,
421 CARD_IO_READY
| DN_LD_CARD_RDY
);
423 BT_ERR("FW download with helper poll status"
424 " timeout @ %d", offset
);
428 /* Check if there is more data ? */
429 if (offset
>= firmwarelen
)
432 for (tries
= 0; tries
< MAX_POLL_TRIES
; tries
++) {
433 base0
= sdio_readb(card
->func
,
434 card
->reg
->sq_read_base_addr_a0
, &ret
);
436 BT_ERR("BASE0 register read failed:"
437 " base0 = 0x%04X(%d)."
438 " Terminating download",
443 base1
= sdio_readb(card
->func
,
444 card
->reg
->sq_read_base_addr_a1
, &ret
);
446 BT_ERR("BASE1 register read failed:"
447 " base1 = 0x%04X(%d)."
448 " Terminating download",
454 len
= (((u16
) base1
) << 8) | base0
;
463 else if (len
> BTM_UPLD_SIZE
) {
464 BT_ERR("FW download failure @%d, invalid length %d",
474 if (count
> MAX_WRITE_IOMEM_RETRY
) {
475 BT_ERR("FW download failure @%d, "
476 "over max retry count", offset
);
480 BT_ERR("FW CRC error indicated by the helper: "
481 "len = 0x%04X, txlen = %d", len
, txlen
);
483 /* Set txlen to 0 so as to resend from same offset */
489 if (firmwarelen
- offset
< txlen
)
490 txlen
= firmwarelen
- offset
;
492 tx_blocks
= DIV_ROUND_UP(txlen
, blksz_dl
);
494 memcpy(fwbuf
, &firmware
[offset
], txlen
);
497 ret
= sdio_writesb(card
->func
, card
->ioport
, fwbuf
,
498 tx_blocks
* blksz_dl
);
501 BT_ERR("FW download, writesb(%d) failed @%d",
503 sdio_writeb(card
->func
, HOST_CMD53_FIN
,
504 card
->reg
->cfg
, &ret
);
506 BT_ERR("writeb failed (CFG)");
512 BT_DBG("FW download over, size %d bytes", offset
);
518 release_firmware(fw_firmware
);
522 static int btmrvl_sdio_card_to_host(struct btmrvl_private
*priv
)
525 int ret
, num_blocks
, blksz
;
526 struct sk_buff
*skb
= NULL
;
529 struct hci_dev
*hdev
= priv
->btmrvl_dev
.hcidev
;
530 struct btmrvl_sdio_card
*card
= priv
->btmrvl_dev
.card
;
532 if (!card
|| !card
->func
) {
533 BT_ERR("card or function is NULL!");
538 /* Read the length of data to be transferred */
539 ret
= btmrvl_sdio_read_rx_len(card
, &buf_len
);
541 BT_ERR("read rx_len failed");
546 blksz
= SDIO_BLOCK_SIZE
;
547 num_blocks
= DIV_ROUND_UP(buf_len
, blksz
);
549 if (buf_len
<= SDIO_HEADER_LEN
550 || (num_blocks
* blksz
) > ALLOC_BUF_SIZE
) {
551 BT_ERR("invalid packet length: %d", buf_len
);
556 /* Allocate buffer */
557 skb
= bt_skb_alloc(num_blocks
* blksz
+ BTSDIO_DMA_ALIGN
, GFP_ATOMIC
);
559 BT_ERR("No free skb");
564 if ((unsigned long) skb
->data
& (BTSDIO_DMA_ALIGN
- 1)) {
565 skb_put(skb
, (unsigned long) skb
->data
&
566 (BTSDIO_DMA_ALIGN
- 1));
567 skb_pull(skb
, (unsigned long) skb
->data
&
568 (BTSDIO_DMA_ALIGN
- 1));
573 ret
= sdio_readsb(card
->func
, payload
, card
->ioport
,
576 BT_ERR("readsb failed: %d", ret
);
581 /* This is SDIO specific header length: byte[2][1][0], type: byte[3]
582 * (HCI_COMMAND = 1, ACL_DATA = 2, SCO_DATA = 3, 0xFE = Vendor)
585 buf_len
= payload
[0];
586 buf_len
|= payload
[1] << 8;
587 buf_len
|= payload
[2] << 16;
589 if (buf_len
> blksz
* num_blocks
) {
590 BT_ERR("Skip incorrect packet: hdrlen %d buffer %d",
591 buf_len
, blksz
* num_blocks
);
599 case HCI_ACLDATA_PKT
:
600 case HCI_SCODATA_PKT
:
602 bt_cb(skb
)->pkt_type
= type
;
603 skb_put(skb
, buf_len
);
604 skb_pull(skb
, SDIO_HEADER_LEN
);
606 if (type
== HCI_EVENT_PKT
) {
607 if (btmrvl_check_evtpkt(priv
, skb
))
608 hci_recv_frame(hdev
, skb
);
610 hci_recv_frame(hdev
, skb
);
613 hdev
->stat
.byte_rx
+= buf_len
;
616 case MRVL_VENDOR_PKT
:
617 bt_cb(skb
)->pkt_type
= HCI_VENDOR_PKT
;
618 skb_put(skb
, buf_len
);
619 skb_pull(skb
, SDIO_HEADER_LEN
);
621 if (btmrvl_process_event(priv
, skb
))
622 hci_recv_frame(hdev
, skb
);
624 hdev
->stat
.byte_rx
+= buf_len
;
628 BT_ERR("Unknown packet type:%d", type
);
629 BT_ERR("hex: %*ph", blksz
* num_blocks
, payload
);
645 static int btmrvl_sdio_process_int_status(struct btmrvl_private
*priv
)
649 struct btmrvl_sdio_card
*card
= priv
->btmrvl_dev
.card
;
651 spin_lock_irqsave(&priv
->driver_lock
, flags
);
654 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
656 sdio_claim_host(card
->func
);
657 if (ireg
& DN_LD_HOST_INT_STATUS
) {
658 if (priv
->btmrvl_dev
.tx_dnld_rdy
)
659 BT_DBG("tx_done already received: "
660 " int_status=0x%x", ireg
);
662 priv
->btmrvl_dev
.tx_dnld_rdy
= true;
665 if (ireg
& UP_LD_HOST_INT_STATUS
)
666 btmrvl_sdio_card_to_host(priv
);
668 sdio_release_host(card
->func
);
673 static void btmrvl_sdio_interrupt(struct sdio_func
*func
)
675 struct btmrvl_private
*priv
;
676 struct btmrvl_sdio_card
*card
;
681 card
= sdio_get_drvdata(func
);
682 if (!card
|| !card
->priv
) {
683 BT_ERR("sbi_interrupt(%p) card or priv is "
684 "NULL, card=%p\n", func
, card
);
690 ireg
= sdio_readb(card
->func
, card
->reg
->host_intstatus
, &ret
);
692 BT_ERR("sdio_readb: read int status register failed");
698 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS
699 * Clear the interrupt status register and re-enable the
702 BT_DBG("ireg = 0x%x", ireg
);
704 sdio_writeb(card
->func
, ~(ireg
) & (DN_LD_HOST_INT_STATUS
|
705 UP_LD_HOST_INT_STATUS
),
706 card
->reg
->host_intstatus
, &ret
);
708 BT_ERR("sdio_writeb: clear int status register failed");
713 spin_lock_irqsave(&priv
->driver_lock
, flags
);
715 spin_unlock_irqrestore(&priv
->driver_lock
, flags
);
717 btmrvl_interrupt(priv
);
720 static int btmrvl_sdio_register_dev(struct btmrvl_sdio_card
*card
)
722 struct sdio_func
*func
;
726 if (!card
|| !card
->func
) {
727 BT_ERR("Error: card or function is NULL!");
734 sdio_claim_host(func
);
736 ret
= sdio_enable_func(func
);
738 BT_ERR("sdio_enable_func() failed: ret=%d", ret
);
743 ret
= sdio_claim_irq(func
, btmrvl_sdio_interrupt
);
745 BT_ERR("sdio_claim_irq failed: ret=%d", ret
);
750 ret
= sdio_set_block_size(card
->func
, SDIO_BLOCK_SIZE
);
752 BT_ERR("cannot set SDIO block size");
757 reg
= sdio_readb(func
, card
->reg
->io_port_0
, &ret
);
765 reg
= sdio_readb(func
, card
->reg
->io_port_1
, &ret
);
771 card
->ioport
|= (reg
<< 8);
773 reg
= sdio_readb(func
, card
->reg
->io_port_2
, &ret
);
779 card
->ioport
|= (reg
<< 16);
781 BT_DBG("SDIO FUNC%d IO port: 0x%x", func
->num
, card
->ioport
);
783 sdio_set_drvdata(func
, card
);
785 sdio_release_host(func
);
790 sdio_release_irq(func
);
793 sdio_disable_func(func
);
796 sdio_release_host(func
);
802 static int btmrvl_sdio_unregister_dev(struct btmrvl_sdio_card
*card
)
804 if (card
&& card
->func
) {
805 sdio_claim_host(card
->func
);
806 sdio_release_irq(card
->func
);
807 sdio_disable_func(card
->func
);
808 sdio_release_host(card
->func
);
809 sdio_set_drvdata(card
->func
, NULL
);
815 static int btmrvl_sdio_enable_host_int(struct btmrvl_sdio_card
*card
)
819 if (!card
|| !card
->func
)
822 sdio_claim_host(card
->func
);
824 ret
= btmrvl_sdio_enable_host_int_mask(card
, HIM_ENABLE
);
826 btmrvl_sdio_get_rx_unit(card
);
828 sdio_release_host(card
->func
);
833 static int btmrvl_sdio_disable_host_int(struct btmrvl_sdio_card
*card
)
837 if (!card
|| !card
->func
)
840 sdio_claim_host(card
->func
);
842 ret
= btmrvl_sdio_disable_host_int_mask(card
, HIM_DISABLE
);
844 sdio_release_host(card
->func
);
849 static int btmrvl_sdio_host_to_card(struct btmrvl_private
*priv
,
852 struct btmrvl_sdio_card
*card
= priv
->btmrvl_dev
.card
;
861 if (!card
|| !card
->func
) {
862 BT_ERR("card or function is NULL!");
867 if ((unsigned long) payload
& (BTSDIO_DMA_ALIGN
- 1)) {
868 tmpbufsz
= ALIGN_SZ(nb
, BTSDIO_DMA_ALIGN
);
869 tmpbuf
= kzalloc(tmpbufsz
, GFP_KERNEL
);
872 buf
= (u8
*) ALIGN_ADDR(tmpbuf
, BTSDIO_DMA_ALIGN
);
873 memcpy(buf
, payload
, nb
);
876 blksz
= SDIO_BLOCK_SIZE
;
877 buf_block_len
= DIV_ROUND_UP(nb
, blksz
);
879 sdio_claim_host(card
->func
);
882 /* Transfer data to card */
883 ret
= sdio_writesb(card
->func
, card
->ioport
, buf
,
884 buf_block_len
* blksz
);
887 BT_ERR("i=%d writesb failed: %d", i
, ret
);
888 BT_ERR("hex: %*ph", nb
, payload
);
890 if (i
> MAX_WRITE_IOMEM_RETRY
)
895 priv
->btmrvl_dev
.tx_dnld_rdy
= false;
898 sdio_release_host(card
->func
);
904 static int btmrvl_sdio_download_fw(struct btmrvl_sdio_card
*card
)
908 int pollnum
= MAX_POLL_TRIES
;
910 if (!card
|| !card
->func
) {
911 BT_ERR("card or function is NULL!");
915 if (!btmrvl_sdio_verify_fw_download(card
, 1)) {
916 BT_DBG("Firmware already downloaded!");
920 sdio_claim_host(card
->func
);
922 /* Check if other function driver is downloading the firmware */
923 fws0
= sdio_readb(card
->func
, card
->reg
->card_fw_status0
, &ret
);
925 BT_ERR("Failed to read FW downloading status!");
930 BT_DBG("BT not the winner (%#x). Skip FW downloading", fws0
);
932 /* Give other function more time to download the firmware */
936 ret
= btmrvl_sdio_download_helper(card
);
938 BT_ERR("Failed to download helper!");
944 if (btmrvl_sdio_download_fw_w_helper(card
)) {
945 BT_ERR("Failed to download firmware!");
951 sdio_release_host(card
->func
);
954 * winner or not, with this test the FW synchronizes when the
955 * module can continue its initialization
957 if (btmrvl_sdio_verify_fw_download(card
, pollnum
)) {
958 BT_ERR("FW failed to be active in time!");
965 sdio_release_host(card
->func
);
969 static int btmrvl_sdio_wakeup_fw(struct btmrvl_private
*priv
)
971 struct btmrvl_sdio_card
*card
= priv
->btmrvl_dev
.card
;
974 if (!card
|| !card
->func
) {
975 BT_ERR("card or function is NULL!");
979 sdio_claim_host(card
->func
);
981 sdio_writeb(card
->func
, HOST_POWER_UP
, card
->reg
->cfg
, &ret
);
983 sdio_release_host(card
->func
);
985 BT_DBG("wake up firmware");
990 static int btmrvl_sdio_probe(struct sdio_func
*func
,
991 const struct sdio_device_id
*id
)
994 struct btmrvl_private
*priv
= NULL
;
995 struct btmrvl_sdio_card
*card
= NULL
;
997 BT_INFO("vendor=0x%x, device=0x%x, class=%d, fn=%d",
998 id
->vendor
, id
->device
, id
->class, func
->num
);
1000 card
= devm_kzalloc(&func
->dev
, sizeof(*card
), GFP_KERNEL
);
1006 if (id
->driver_data
) {
1007 struct btmrvl_sdio_device
*data
= (void *) id
->driver_data
;
1008 card
->helper
= data
->helper
;
1009 card
->firmware
= data
->firmware
;
1010 card
->cal_data
= data
->cal_data
;
1011 card
->reg
= data
->reg
;
1012 card
->sd_blksz_fw_dl
= data
->sd_blksz_fw_dl
;
1015 if (btmrvl_sdio_register_dev(card
) < 0) {
1016 BT_ERR("Failed to register BT device!");
1020 /* Disable the interrupts on the card */
1021 btmrvl_sdio_disable_host_int(card
);
1023 if (btmrvl_sdio_download_fw(card
)) {
1024 BT_ERR("Downloading firmware failed!");
1029 btmrvl_sdio_enable_host_int(card
);
1031 priv
= btmrvl_add_card(card
);
1033 BT_ERR("Initializing card failed!");
1035 goto disable_host_int
;
1039 priv
->btmrvl_dev
.dev
= &card
->func
->dev
;
1040 priv
->btmrvl_dev
.cal_data
= card
->cal_data
;
1042 /* Initialize the interface specific function pointers */
1043 priv
->hw_host_to_card
= btmrvl_sdio_host_to_card
;
1044 priv
->hw_wakeup_firmware
= btmrvl_sdio_wakeup_fw
;
1045 priv
->hw_process_int_status
= btmrvl_sdio_process_int_status
;
1047 if (btmrvl_register_hdev(priv
)) {
1048 BT_ERR("Register hdev failed!");
1050 goto disable_host_int
;
1056 btmrvl_sdio_disable_host_int(card
);
1058 btmrvl_sdio_unregister_dev(card
);
1062 static void btmrvl_sdio_remove(struct sdio_func
*func
)
1064 struct btmrvl_sdio_card
*card
;
1067 card
= sdio_get_drvdata(func
);
1069 /* Send SHUTDOWN command & disable interrupt
1070 * if user removes the module.
1073 btmrvl_send_module_cfg_cmd(card
->priv
,
1074 MODULE_SHUTDOWN_REQ
);
1075 btmrvl_sdio_disable_host_int(card
);
1077 BT_DBG("unregester dev");
1078 btmrvl_sdio_unregister_dev(card
);
1079 btmrvl_remove_card(card
->priv
);
1084 static int btmrvl_sdio_suspend(struct device
*dev
)
1086 struct sdio_func
*func
= dev_to_sdio_func(dev
);
1087 struct btmrvl_sdio_card
*card
;
1088 struct btmrvl_private
*priv
;
1089 mmc_pm_flag_t pm_flags
;
1090 struct hci_dev
*hcidev
;
1093 pm_flags
= sdio_get_host_pm_caps(func
);
1094 BT_DBG("%s: suspend: PM flags = 0x%x", sdio_func_id(func
),
1096 if (!(pm_flags
& MMC_PM_KEEP_POWER
)) {
1097 BT_ERR("%s: cannot remain alive while suspended",
1098 sdio_func_id(func
));
1101 card
= sdio_get_drvdata(func
);
1102 if (!card
|| !card
->priv
) {
1103 BT_ERR("card or priv structure is not valid");
1107 BT_ERR("sdio_func is not specified");
1113 if (priv
->adapter
->hs_state
!= HS_ACTIVATED
) {
1114 if (btmrvl_enable_hs(priv
)) {
1115 BT_ERR("HS not actived, suspend failed!");
1119 hcidev
= priv
->btmrvl_dev
.hcidev
;
1120 BT_DBG("%s: SDIO suspend", hcidev
->name
);
1121 hci_suspend_dev(hcidev
);
1122 skb_queue_purge(&priv
->adapter
->tx_queue
);
1124 priv
->adapter
->is_suspended
= true;
1126 /* We will keep the power when hs enabled successfully */
1127 if (priv
->adapter
->hs_state
== HS_ACTIVATED
) {
1128 BT_DBG("suspend with MMC_PM_KEEP_POWER");
1129 return sdio_set_host_pm_flags(func
, MMC_PM_KEEP_POWER
);
1131 BT_DBG("suspend without MMC_PM_KEEP_POWER");
1136 static int btmrvl_sdio_resume(struct device
*dev
)
1138 struct sdio_func
*func
= dev_to_sdio_func(dev
);
1139 struct btmrvl_sdio_card
*card
;
1140 struct btmrvl_private
*priv
;
1141 mmc_pm_flag_t pm_flags
;
1142 struct hci_dev
*hcidev
;
1145 pm_flags
= sdio_get_host_pm_caps(func
);
1146 BT_DBG("%s: resume: PM flags = 0x%x", sdio_func_id(func
),
1148 card
= sdio_get_drvdata(func
);
1149 if (!card
|| !card
->priv
) {
1150 BT_ERR("card or priv structure is not valid");
1154 BT_ERR("sdio_func is not specified");
1159 if (!priv
->adapter
->is_suspended
) {
1160 BT_DBG("device already resumed");
1164 priv
->adapter
->is_suspended
= false;
1165 hcidev
= priv
->btmrvl_dev
.hcidev
;
1166 BT_DBG("%s: SDIO resume", hcidev
->name
);
1167 hci_resume_dev(hcidev
);
1168 priv
->hw_wakeup_firmware(priv
);
1169 priv
->adapter
->hs_state
= HS_DEACTIVATED
;
1170 BT_DBG("%s: HS DEACTIVATED in resume!", hcidev
->name
);
1175 static const struct dev_pm_ops btmrvl_sdio_pm_ops
= {
1176 .suspend
= btmrvl_sdio_suspend
,
1177 .resume
= btmrvl_sdio_resume
,
1180 static struct sdio_driver bt_mrvl_sdio
= {
1181 .name
= "btmrvl_sdio",
1182 .id_table
= btmrvl_sdio_ids
,
1183 .probe
= btmrvl_sdio_probe
,
1184 .remove
= btmrvl_sdio_remove
,
1186 .owner
= THIS_MODULE
,
1187 .pm
= &btmrvl_sdio_pm_ops
,
1191 static int __init
btmrvl_sdio_init_module(void)
1193 if (sdio_register_driver(&bt_mrvl_sdio
) != 0) {
1194 BT_ERR("SDIO Driver Registration Failed");
1198 /* Clear the flag in case user removes the card. */
1204 static void __exit
btmrvl_sdio_exit_module(void)
1206 /* Set the flag as user is removing this module. */
1209 sdio_unregister_driver(&bt_mrvl_sdio
);
1212 module_init(btmrvl_sdio_init_module
);
1213 module_exit(btmrvl_sdio_exit_module
);
1215 MODULE_AUTHOR("Marvell International Ltd.");
1216 MODULE_DESCRIPTION("Marvell BT-over-SDIO driver ver " VERSION
);
1217 MODULE_VERSION(VERSION
);
1218 MODULE_LICENSE("GPL v2");
1219 MODULE_FIRMWARE("mrvl/sd8688_helper.bin");
1220 MODULE_FIRMWARE("mrvl/sd8688.bin");
1221 MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
1222 MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
1223 MODULE_FIRMWARE("mrvl/sd8797_caldata.conf");
1224 MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin");