diff options
| -rw-r--r-- | drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c | 243 |
1 files changed, 120 insertions, 123 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c index 25638753b214..02ab5cdbe29b 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c @@ -201,13 +201,6 @@ struct rte_console { #define SFC_CRC4WOOS (1 << 2) /* CRC error for write out of sync */ #define SFC_ABORTALL (1 << 3) /* Abort all in-progress frames */ -/* HW frame tag */ -#define SDPCM_FRAMETAG_LEN 4 /* 2 bytes len, 2 bytes check val */ - -/* Total length of frame header for dongle protocol */ -#define SDPCM_HDRLEN (SDPCM_FRAMETAG_LEN + SDPCM_SWHEADER_LEN) -#define SDPCM_RESERVE (SDPCM_HDRLEN + BRCMF_SDALIGN) - /* * Software allocation of To SB Mailbox resources */ @@ -250,38 +243,6 @@ struct rte_console { /* Current protocol version */ #define SDPCM_PROT_VERSION 4 -/* SW frame header */ -#define SDPCM_PACKET_SEQUENCE(p) (((u8 *)p)[0] & 0xff) - -#define SDPCM_CHANNEL_MASK 0x00000f00 -#define SDPCM_CHANNEL_SHIFT 8 -#define SDPCM_PACKET_CHANNEL(p) (((u8 *)p)[1] & 0x0f) - -#define SDPCM_NEXTLEN_OFFSET 2 - -/* Data Offset from SOF (HW Tag, SW Tag, Pad) */ -#define SDPCM_DOFFSET_OFFSET 3 /* Data Offset */ -#define SDPCM_DOFFSET_VALUE(p) (((u8 *)p)[SDPCM_DOFFSET_OFFSET] & 0xff) -#define SDPCM_DOFFSET_MASK 0xff000000 -#define SDPCM_DOFFSET_SHIFT 24 -#define SDPCM_FCMASK_OFFSET 4 /* Flow control */ -#define SDPCM_FCMASK_VALUE(p) (((u8 *)p)[SDPCM_FCMASK_OFFSET] & 0xff) -#define SDPCM_WINDOW_OFFSET 5 /* Credit based fc */ -#define SDPCM_WINDOW_VALUE(p) (((u8 *)p)[SDPCM_WINDOW_OFFSET] & 0xff) - -#define SDPCM_SWHEADER_LEN 8 /* SW header is 64 bits */ - -/* logical channel numbers */ -#define SDPCM_CONTROL_CHANNEL 0 /* Control channel Id */ -#define SDPCM_EVENT_CHANNEL 1 /* Asyc Event Indication Channel Id */ -#define SDPCM_DATA_CHANNEL 2 /* Data Xmit/Recv Channel Id */ -#define SDPCM_GLOM_CHANNEL 3 /* For coalesced packets */ -#define SDPCM_TEST_CHANNEL 15 /* Reserved for test/debug packets */ - -#define SDPCM_SEQUENCE_WRAP 256 /* wrap-around val for 8bit frame seq */ - -#define SDPCM_GLOMDESC(p) (((u8 *)p)[1] & 0x80) - /* * Shared structure between dongle and the host. * The structure contains pointers to trap or assert information. @@ -396,8 +357,8 @@ struct sdpcm_shared_le { __le32 brpt_addr; }; -/* SDIO read frame info */ -struct brcmf_sdio_read { +/* dongle SDIO bus specific header info */ +struct brcmf_sdio_hdrinfo { u8 seq_num; u8 channel; u16 len; @@ -431,7 +392,7 @@ struct brcmf_sdio { u8 hdrbuf[MAX_HDR_READ + BRCMF_SDALIGN]; u8 *rxhdr; /* Header of current rx frame (in hdrbuf) */ u8 rx_seq; /* Receive sequence number (expected) */ - struct brcmf_sdio_read cur_read; + struct brcmf_sdio_hdrinfo cur_read; /* info of current read frame */ bool rxskip; /* Skip receive (awaiting NAK ACK) */ bool rxpending; /* Data frame pending in dongle */ @@ -1042,18 +1003,64 @@ static void brcmf_sdbrcm_free_glom(struct brcmf_sdio *bus) } } -static int brcmf_sdio_hdparser(struct brcmf_sdio *bus, u8 *header, - struct brcmf_sdio_read *rd, - enum brcmf_sdio_frmtype type) +/** + * brcmfmac sdio bus specific header + * This is the lowest layer header wrapped on the packets transmitted between + * host and WiFi dongle which contains information needed for SDIO core and + * firmware + * + * It consists of 2 parts: hw header and software header + * hardware header (frame tag) - 4 bytes + * Byte 0~1: Frame length + * Byte 2~3: Checksum, bit-wise inverse of frame length + * software header - 8 bytes + * Byte 0: Rx/Tx sequence number + * Byte 1: 4 MSB Channel number, 4 LSB arbitrary flag + * Byte 2: Length of next data frame, reserved for Tx + * Byte 3: Data offset + * Byte 4: Flow control bits, reserved for Tx + * Byte 5: Maximum Sequence number allowed by firmware for Tx, N/A for Tx packet + * Byte 6~7: Reserved + */ +#define SDPCM_HWHDR_LEN 4 +#define SDPCM_SWHDR_LEN 8 +#define SDPCM_HDRLEN (SDPCM_HWHDR_LEN + SDPCM_SWHDR_LEN) +#define SDPCM_RESERVE (SDPCM_HDRLEN + BRCMF_SDALIGN) +/* software header */ +#define SDPCM_SEQ_MASK 0x000000ff +#define SDPCM_SEQ_WRAP 256 +#define SDPCM_CHANNEL_MASK 0x00000f00 +#define SDPCM_CHANNEL_SHIFT 8 +#define SDPCM_CONTROL_CHANNEL 0 /* Control */ +#define SDPCM_EVENT_CHANNEL 1 /* Asyc Event Indication */ +#define SDPCM_DATA_CHANNEL 2 /* Data Xmit/Recv */ +#define SDPCM_GLOM_CHANNEL 3 /* Coalesced packets */ +#define SDPCM_TEST_CHANNEL 15 /* Test/debug packets */ +#define SDPCM_GLOMDESC(p) (((u8 *)p)[1] & 0x80) +#define SDPCM_NEXTLEN_MASK 0x00ff0000 +#define SDPCM_NEXTLEN_SHIFT 16 +#define SDPCM_DOFFSET_MASK 0xff000000 +#define SDPCM_DOFFSET_SHIFT 24 +#define SDPCM_FCMASK_MASK 0x000000ff +#define SDPCM_WINDOW_MASK 0x0000ff00 +#define SDPCM_WINDOW_SHIFT 8 + +static inline u8 brcmf_sdio_getdatoffset(u8 *swheader) +{ + u32 hdrvalue; + hdrvalue = *(u32 *)swheader; + return (u8)((hdrvalue & SDPCM_DOFFSET_MASK) >> SDPCM_DOFFSET_SHIFT); +} + +static int brcmf_sdio_hdparse(struct brcmf_sdio *bus, u8 *header, + struct brcmf_sdio_hdrinfo *rd, + enum brcmf_sdio_frmtype type) { u16 len, checksum; u8 rx_seq, fc, tx_seq_max; + u32 swheader; - /* - * 4 bytes hardware header (frame tag) - * Byte 0~1: Frame length - * Byte 2~3: Checksum, bit-wise inverse of frame length - */ + /* hw header */ len = get_unaligned_le16(header); checksum = get_unaligned_le16(header + sizeof(u16)); /* All zero means no more to read */ @@ -1082,24 +1089,16 @@ static int brcmf_sdio_hdparser(struct brcmf_sdio *bus, u8 *header, } rd->len = len; - /* - * 8 bytes hardware header - * Byte 0: Rx sequence number - * Byte 1: 4 MSB Channel number, 4 LSB arbitrary flag - * Byte 2: Length of next data frame - * Byte 3: Data offset - * Byte 4: Flow control bits - * Byte 5: Maximum Sequence number allow for Tx - * Byte 6~7: Reserved - */ - if (type == BRCMF_SDIO_FT_SUPER && - SDPCM_GLOMDESC(&header[SDPCM_FRAMETAG_LEN])) { + /* software header */ + header += SDPCM_HWHDR_LEN; + swheader = le32_to_cpu(*(__le32 *)header); + if (type == BRCMF_SDIO_FT_SUPER && SDPCM_GLOMDESC(header)) { brcmf_err("Glom descriptor found in superframe head\n"); rd->len = 0; return -EINVAL; } - rx_seq = SDPCM_PACKET_SEQUENCE(&header[SDPCM_FRAMETAG_LEN]); - rd->channel = SDPCM_PACKET_CHANNEL(&header[SDPCM_FRAMETAG_LEN]); + rx_seq = (u8)(swheader & SDPCM_SEQ_MASK); + rd->channel = (swheader & SDPCM_CHANNEL_MASK) >> SDPCM_CHANNEL_SHIFT; if (len > MAX_RX_DATASZ && rd->channel != SDPCM_CONTROL_CHANNEL && type != BRCMF_SDIO_FT_SUPER) { brcmf_err("HW header length too long\n"); @@ -1119,7 +1118,7 @@ static int brcmf_sdio_hdparser(struct brcmf_sdio *bus, u8 *header, rd->len = 0; return -EINVAL; } - rd->dat_offset = SDPCM_DOFFSET_VALUE(&header[SDPCM_FRAMETAG_LEN]); + rd->dat_offset = brcmf_sdio_getdatoffset(header); if (rd->dat_offset < SDPCM_HDRLEN || rd->dat_offset > rd->len) { brcmf_err("seq %d: bad data offset\n", rx_seq); bus->sdcnt.rx_badhdr++; @@ -1136,14 +1135,15 @@ static int brcmf_sdio_hdparser(struct brcmf_sdio *bus, u8 *header, /* no need to check the reset for subframe */ if (type == BRCMF_SDIO_FT_SUB) return 0; - rd->len_nxtfrm = header[SDPCM_FRAMETAG_LEN + SDPCM_NEXTLEN_OFFSET]; + rd->len_nxtfrm = (swheader & SDPCM_NEXTLEN_MASK) >> SDPCM_NEXTLEN_SHIFT; if (rd->len_nxtfrm << 4 > MAX_RX_DATASZ) { /* only warm for NON glom packet */ if (rd->channel != SDPCM_GLOM_CHANNEL) brcmf_err("seq %d: next length error\n", rx_seq); rd->len_nxtfrm = 0; } - fc = SDPCM_FCMASK_VALUE(&header[SDPCM_FRAMETAG_LEN]); + swheader = le32_to_cpu(*(__le32 *)(header + 4)); + fc = swheader & SDPCM_FCMASK_MASK; if (bus->flowcontrol != fc) { if (~bus->flowcontrol & fc) bus->sdcnt.fc_xoff++; @@ -1152,7 +1152,7 @@ static int brcmf_sdio_hdparser(struct brcmf_sdio *bus, u8 *header, bus->sdcnt.fc_rcvd++; bus->flowcontrol = fc; } - tx_seq_max = SDPCM_WINDOW_VALUE(&header[SDPCM_FRAMETAG_LEN]); + tx_seq_max = (swheader & SDPCM_WINDOW_MASK) >> SDPCM_WINDOW_SHIFT; if ((u8)(tx_seq_max - bus->tx_seq) > 0x40) { brcmf_err("seq %d: max tx seq number error\n", rx_seq); tx_seq_max = bus->tx_seq + 2; @@ -1162,6 +1162,28 @@ static int brcmf_sdio_hdparser(struct brcmf_sdio *bus, u8 *header, return 0; } +static inline void brcmf_sdio_update_hwhdr(u8 *header, u16 frm_length) +{ + *(__le16 *)header = cpu_to_le16(frm_length); + *(((__le16 *)header) + 1) = cpu_to_le16(~frm_length); +} + +static void brcmf_sdio_hdpack(struct brcmf_sdio *bus, u8 *header, + struct brcmf_sdio_hdrinfo *hd_info) +{ + u32 sw_header; + + brcmf_sdio_update_hwhdr(header, hd_info->len); + + sw_header = bus->tx_seq; + sw_header |= (hd_info->channel << SDPCM_CHANNEL_SHIFT) & + SDPCM_CHANNEL_MASK; + sw_header |= (hd_info->dat_offset << SDPCM_DOFFSET_SHIFT) & + SDPCM_DOFFSET_MASK; + *(((__le32 *)header) + 1) = cpu_to_le32(sw_header); + *(((__le32 *)header) + 2) = 0; +} + static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq) { u16 dlen, totlen; @@ -1173,7 +1195,7 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq) int errcode; u8 doff, sfdoff; - struct brcmf_sdio_read rd_new; + struct brcmf_sdio_hdrinfo rd_new; /* If packets, issue read(s) and send up packet chain */ /* Return sequence numbers consumed? */ @@ -1309,8 +1331,8 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq) rd_new.seq_num = rxseq; rd_new.len = dlen; sdio_claim_host(bus->sdiodev->func[1]); - errcode = brcmf_sdio_hdparser(bus, pfirst->data, &rd_new, - BRCMF_SDIO_FT_SUPER); + errcode = brcmf_sdio_hdparse(bus, pfirst->data, &rd_new, + BRCMF_SDIO_FT_SUPER); sdio_release_host(bus->sdiodev->func[1]); bus->cur_read.len = rd_new.len_nxtfrm << 4; @@ -1328,8 +1350,8 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq) rd_new.len = pnext->len; rd_new.seq_num = rxseq++; sdio_claim_host(bus->sdiodev->func[1]); - errcode = brcmf_sdio_hdparser(bus, pnext->data, &rd_new, - BRCMF_SDIO_FT_SUB); + errcode = brcmf_sdio_hdparse(bus, pnext->data, &rd_new, + BRCMF_SDIO_FT_SUB); sdio_release_host(bus->sdiodev->func[1]); brcmf_dbg_hex_dump(BRCMF_GLOM_ON(), pnext->data, 32, "subframe:\n"); @@ -1361,7 +1383,7 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq) skb_queue_walk_safe(&bus->glom, pfirst, pnext) { dptr = (u8 *) (pfirst->data); sublen = get_unaligned_le16(dptr); - doff = SDPCM_DOFFSET_VALUE(&dptr[SDPCM_FRAMETAG_LEN]); + doff = brcmf_sdio_getdatoffset(&dptr[SDPCM_HWHDR_LEN]); brcmf_dbg_hex_dump(BRCMF_BYTES_ON() && BRCMF_DATA_ON(), dptr, pfirst->len, @@ -1539,7 +1561,7 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes) uint rxleft = 0; /* Remaining number of frames allowed */ int ret; /* Return code from calls */ uint rxcount = 0; /* Total frames read */ - struct brcmf_sdio_read *rd = &bus->cur_read, rd_new; + struct brcmf_sdio_hdrinfo *rd = &bus->cur_read, rd_new; u8 head_read = 0; brcmf_dbg(TRACE, "Enter\n"); @@ -1587,8 +1609,8 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes) bus->rxhdr, SDPCM_HDRLEN, "RxHdr:\n"); - if (brcmf_sdio_hdparser(bus, bus->rxhdr, rd, - BRCMF_SDIO_FT_NORMAL)) { + if (brcmf_sdio_hdparse(bus, bus->rxhdr, rd, + BRCMF_SDIO_FT_NORMAL)) { sdio_release_host(bus->sdiodev->func[1]); if (!bus->rxpending) break; @@ -1652,8 +1674,8 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes) memcpy(bus->rxhdr, pkt->data, SDPCM_HDRLEN); rd_new.seq_num = rd->seq_num; sdio_claim_host(bus->sdiodev->func[1]); - if (brcmf_sdio_hdparser(bus, bus->rxhdr, &rd_new, - BRCMF_SDIO_FT_NORMAL)) { + if (brcmf_sdio_hdparse(bus, bus->rxhdr, &rd_new, + BRCMF_SDIO_FT_NORMAL)) { rd->len = 0; brcmu_pkt_buf_free_skb(pkt); } @@ -1697,7 +1719,7 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes) /* Save superframe descriptor and allocate packet frame */ if (rd->channel == SDPCM_GLOM_CHANNEL) { - if (SDPCM_GLOMDESC(&bus->rxhdr[SDPCM_FRAMETAG_LEN])) { + if (SDPCM_GLOMDESC(&bus->rxhdr[SDPCM_HWHDR_LEN])) { brcmf_dbg(GLOM, "glom descriptor, %d bytes:\n", rd->len); brcmf_dbg_hex_dump(BRCMF_GLOM_ON(), @@ -1783,13 +1805,12 @@ static int brcmf_sdio_txpkt_prep(struct brcmf_sdio *bus, struct sk_buff_head *pktq, uint chan) { - u16 head_pad, tail_pad, tail_chop, pkt_len; - u16 head_align, sg_align; - u32 sw_header; + u16 head_pad, tail_pad, tail_chop, head_align, sg_align; int ntail; struct sk_buff *pkt_next, *pkt_new; u8 *dat_buf; unsigned blksize = bus->sdiodev->func[SDIO_FUNC_2]->cur_blksize; + struct brcmf_sdio_hdrinfo hd_info = {0}; /* SDIO ADMA requires at least 32 bit alignment */ head_align = 4; @@ -1848,34 +1869,18 @@ brcmf_sdio_txpkt_prep(struct brcmf_sdio *bus, struct sk_buff_head *pktq, } /* Now prep the header */ - /* 4 bytes hardware header (frame tag) - * Byte 0~1: Frame length - * Byte 2~3: Checksum, bit-wise inverse of frame length - */ if (pkt_new) - pkt_len = pkt_next->len + tail_chop; + hd_info.len = pkt_next->len + tail_chop; else - pkt_len = pkt_next->len - tail_pad; - *(__le16 *)dat_buf = cpu_to_le16(pkt_len); - *(((__le16 *)dat_buf) + 1) = cpu_to_le16(~pkt_len); - /* 8 bytes software header - * Byte 0: Tx sequence number - * Byte 1: 4 MSB Channel number - * Byte 2: Reserved - * Byte 3: Data offset - * Byte 4~7: Reserved - */ - sw_header = bus->tx_seq; - sw_header |= ((chan << SDPCM_CHANNEL_SHIFT) & SDPCM_CHANNEL_MASK); - sw_header |= ((head_pad + SDPCM_HDRLEN) << SDPCM_DOFFSET_SHIFT) & - SDPCM_DOFFSET_MASK; - *(((__le32 *)dat_buf) + 1) = cpu_to_le32(sw_header); - *(((__le32 *)dat_buf) + 2) = 0; + hd_info.len = pkt_next->len - tail_pad; + hd_info.channel = chan; + hd_info.dat_offset = head_pad + SDPCM_HDRLEN; + brcmf_sdio_hdpack(bus, dat_buf, &hd_info); if (BRCMF_BYTES_ON() && ((BRCMF_CTL_ON() && chan == SDPCM_CONTROL_CHANNEL) || (BRCMF_DATA_ON() && chan != SDPCM_CONTROL_CHANNEL))) - brcmf_dbg_hex_dump(true, pkt_next, pkt_len, "Tx Frame:\n"); + brcmf_dbg_hex_dump(true, pkt_next, hd_info.len, "Tx Frame:\n"); else if (BRCMF_HDRS_ON()) brcmf_dbg_hex_dump(true, pkt_next, head_pad + SDPCM_HDRLEN, "Tx Header:\n"); @@ -1913,7 +1918,7 @@ brcmf_sdio_txpkt_postp(struct brcmf_sdio *bus, struct sk_buff_head *pktq) __skb_unlink(pkt_next, pktq); brcmu_pkt_buf_free_skb(pkt_next); } else { - hdr = pkt_next->data + SDPCM_FRAMETAG_LEN; + hdr = pkt_next->data + SDPCM_HWHDR_LEN; dat_offset = le32_to_cpu(*(__le32 *)hdr); dat_offset = (dat_offset & SDPCM_DOFFSET_MASK) >> SDPCM_DOFFSET_SHIFT; @@ -1969,7 +1974,7 @@ static int brcmf_sdbrcm_txpkt(struct brcmf_sdio *bus, struct sk_buff *pkt, } sdio_release_host(bus->sdiodev->func[1]); if (ret == 0) - bus->tx_seq = (bus->tx_seq + 1) % SDPCM_SEQUENCE_WRAP; + bus->tx_seq = (bus->tx_seq + 1) % SDPCM_SEQ_WRAP; done: brcmf_sdio_txpkt_postp(bus, &localq); @@ -2325,7 +2330,7 @@ static void brcmf_sdbrcm_dpc(struct brcmf_sdio *bus) } } else { - bus->tx_seq = (bus->tx_seq + 1) % SDPCM_SEQUENCE_WRAP; + bus->tx_seq = (bus->tx_seq + 1) % SDPCM_SEQ_WRAP; } sdio_release_host(bus->sdiodev->func[1]); bus->ctrl_frame_stat = false; @@ -2540,7 +2545,7 @@ static int brcmf_tx_frame(struct brcmf_sdio *bus, u8 *frame, u16 len) return ret; } - bus->tx_seq = (bus->tx_seq + 1) % SDPCM_SEQUENCE_WRAP; + bus->tx_seq = (bus->tx_seq + 1) % SDPCM_SEQ_WRAP; return ret; } @@ -2550,13 +2555,13 @@ brcmf_sdbrcm_bus_txctl(struct device *dev, unsigned char *msg, uint msglen) { u8 *frame; u16 len; - u32 swheader; uint retries = 0; u8 doff = 0; int ret = -1; struct brcmf_bus *bus_if = dev_get_drvdata(dev); struct brcmf_sdio_dev *sdiodev = bus_if->bus_priv.sdio; struct brcmf_sdio *bus = sdiodev->bus; + struct brcmf_sdio_hdrinfo hd_info = {0}; brcmf_dbg(TRACE, "Enter\n"); @@ -2595,18 +2600,10 @@ brcmf_sdbrcm_bus_txctl(struct device *dev, unsigned char *msg, uint msglen) brcmf_sdbrcm_bus_sleep(bus, false, false); sdio_release_host(bus->sdiodev->func[1]); - /* Hardware tag: 2 byte len followed by 2 byte ~len check (all LE) */ - *(__le16 *) frame = cpu_to_le16((u16) msglen); - *(((__le16 *) frame) + 1) = cpu_to_le16(~msglen); - - /* Software tag: channel, sequence number, data offset */ - swheader = - ((SDPCM_CONTROL_CHANNEL << SDPCM_CHANNEL_SHIFT) & - SDPCM_CHANNEL_MASK) - | bus->tx_seq | ((doff << SDPCM_DOFFSET_SHIFT) & - SDPCM_DOFFSET_MASK); - put_unaligned_le32(swheader, frame + SDPCM_FRAMETAG_LEN); - put_unaligned_le32(0, frame + SDPCM_FRAMETAG_LEN + sizeof(swheader)); + hd_info.len = (u16)msglen; + hd_info.channel = SDPCM_CONTROL_CHANNEL; + hd_info.dat_offset = doff; + brcmf_sdio_hdpack(bus, frame, &hd_info); if (!data_ok(bus)) { brcmf_dbg(INFO, "No bus credit bus->tx_max %d, bus->tx_seq %d\n", @@ -3856,7 +3853,7 @@ void *brcmf_sdbrcm_probe(u32 regsva, struct brcmf_sdio_dev *sdiodev) bus->txbound = BRCMF_TXBOUND; bus->rxbound = BRCMF_RXBOUND; bus->txminmax = BRCMF_TXMINMAX; - bus->tx_seq = SDPCM_SEQUENCE_WRAP - 1; + bus->tx_seq = SDPCM_SEQ_WRAP - 1; INIT_WORK(&bus->datawork, brcmf_sdio_dataworker); bus->brcmf_wq = create_singlethread_workqueue("brcmf_wq"); |