496 lines
12 KiB
C
496 lines
12 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2010 Broadcom Corporation
|
||
|
|
*
|
||
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
||
|
|
* purpose with or without fee is hereby granted, provided that the above
|
||
|
|
* copyright notice and this permission notice appear in all copies.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
||
|
|
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
||
|
|
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
||
|
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
* Communicates with the dongle by using dcmd codes.
|
||
|
|
* For certain dcmd codes, the dongle interprets string data from the host.
|
||
|
|
******************************************************************************/
|
||
|
|
|
||
|
|
#undef pr_fmt
|
||
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
|
||
|
|
|
||
|
|
#include <linux/printk.h>
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <linux/netdevice.h>
|
||
|
|
#include <linux/sched.h>
|
||
|
|
#include <defs.h>
|
||
|
|
|
||
|
|
#include <brcmu_utils.h>
|
||
|
|
#include <brcmu_wifi.h>
|
||
|
|
|
||
|
|
#include "dhd.h"
|
||
|
|
#include "dhd_proto.h"
|
||
|
|
#include "dhd_bus.h"
|
||
|
|
#include "dhd_dbg.h"
|
||
|
|
|
||
|
|
struct brcmf_proto_cdc_dcmd {
|
||
|
|
__le32 cmd; /* dongle command value */
|
||
|
|
__le32 len; /* lower 16: output buflen;
|
||
|
|
* upper 16: input buflen (excludes header) */
|
||
|
|
__le32 flags; /* flag defns given below */
|
||
|
|
__le32 status; /* status code returned from the device */
|
||
|
|
};
|
||
|
|
|
||
|
|
/* Max valid buffer size that can be sent to the dongle */
|
||
|
|
#define CDC_MAX_MSG_SIZE (ETH_FRAME_LEN+ETH_FCS_LEN)
|
||
|
|
|
||
|
|
/* CDC flag definitions */
|
||
|
|
#define CDC_DCMD_ERROR 0x01 /* 1=cmd failed */
|
||
|
|
#define CDC_DCMD_SET 0x02 /* 0=get, 1=set cmd */
|
||
|
|
#define CDC_DCMD_IF_MASK 0xF000 /* I/F index */
|
||
|
|
#define CDC_DCMD_IF_SHIFT 12
|
||
|
|
#define CDC_DCMD_ID_MASK 0xFFFF0000 /* id an cmd pairing */
|
||
|
|
#define CDC_DCMD_ID_SHIFT 16 /* ID Mask shift bits */
|
||
|
|
#define CDC_DCMD_ID(flags) \
|
||
|
|
(((flags) & CDC_DCMD_ID_MASK) >> CDC_DCMD_ID_SHIFT)
|
||
|
|
|
||
|
|
/*
|
||
|
|
* BDC header - Broadcom specific extension of CDC.
|
||
|
|
* Used on data packets to convey priority across USB.
|
||
|
|
*/
|
||
|
|
#define BDC_HEADER_LEN 4
|
||
|
|
#define BDC_PROTO_VER 2 /* Protocol version */
|
||
|
|
#define BDC_FLAG_VER_MASK 0xf0 /* Protocol version mask */
|
||
|
|
#define BDC_FLAG_VER_SHIFT 4 /* Protocol version shift */
|
||
|
|
#define BDC_FLAG_SUM_GOOD 0x04 /* Good RX checksums */
|
||
|
|
#define BDC_FLAG_SUM_NEEDED 0x08 /* Dongle needs to do TX checksums */
|
||
|
|
#define BDC_PRIORITY_MASK 0x7
|
||
|
|
#define BDC_FLAG2_IF_MASK 0x0f /* packet rx interface in APSTA */
|
||
|
|
#define BDC_FLAG2_IF_SHIFT 0
|
||
|
|
|
||
|
|
#define BDC_GET_IF_IDX(hdr) \
|
||
|
|
((int)((((hdr)->flags2) & BDC_FLAG2_IF_MASK) >> BDC_FLAG2_IF_SHIFT))
|
||
|
|
#define BDC_SET_IF_IDX(hdr, idx) \
|
||
|
|
((hdr)->flags2 = (((hdr)->flags2 & ~BDC_FLAG2_IF_MASK) | \
|
||
|
|
((idx) << BDC_FLAG2_IF_SHIFT)))
|
||
|
|
|
||
|
|
struct brcmf_proto_bdc_header {
|
||
|
|
u8 flags;
|
||
|
|
u8 priority; /* 802.1d Priority, 4:7 flow control info for usb */
|
||
|
|
u8 flags2;
|
||
|
|
u8 data_offset;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#define RETRIES 2 /* # of retries to retrieve matching dcmd response */
|
||
|
|
#define BUS_HEADER_LEN (16+64) /* Must be atleast SDPCM_RESERVE
|
||
|
|
* (amount of header tha might be added)
|
||
|
|
* plus any space that might be needed
|
||
|
|
* for bus alignment padding.
|
||
|
|
*/
|
||
|
|
#define ROUND_UP_MARGIN 2048 /* Biggest bus block size possible for
|
||
|
|
* round off at the end of buffer
|
||
|
|
* Currently is SDIO
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct brcmf_proto {
|
||
|
|
u16 reqid;
|
||
|
|
u8 pending;
|
||
|
|
u32 lastcmd;
|
||
|
|
u8 bus_header[BUS_HEADER_LEN];
|
||
|
|
struct brcmf_proto_cdc_dcmd msg;
|
||
|
|
unsigned char buf[BRCMF_DCMD_MAXLEN + ROUND_UP_MARGIN];
|
||
|
|
};
|
||
|
|
|
||
|
|
static int brcmf_proto_cdc_msg(struct brcmf_pub *drvr)
|
||
|
|
{
|
||
|
|
struct brcmf_proto *prot = drvr->prot;
|
||
|
|
int len = le32_to_cpu(prot->msg.len) +
|
||
|
|
sizeof(struct brcmf_proto_cdc_dcmd);
|
||
|
|
|
||
|
|
brcmf_dbg(TRACE, "Enter\n");
|
||
|
|
|
||
|
|
/* NOTE : cdc->msg.len holds the desired length of the buffer to be
|
||
|
|
* returned. Only up to CDC_MAX_MSG_SIZE of this buffer area
|
||
|
|
* is actually sent to the dongle
|
||
|
|
*/
|
||
|
|
if (len > CDC_MAX_MSG_SIZE)
|
||
|
|
len = CDC_MAX_MSG_SIZE;
|
||
|
|
|
||
|
|
/* Send request */
|
||
|
|
return drvr->bus_if->brcmf_bus_txctl(drvr->dev,
|
||
|
|
(unsigned char *)&prot->msg,
|
||
|
|
len);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int brcmf_proto_cdc_cmplt(struct brcmf_pub *drvr, u32 id, u32 len)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
struct brcmf_proto *prot = drvr->prot;
|
||
|
|
|
||
|
|
brcmf_dbg(TRACE, "Enter\n");
|
||
|
|
|
||
|
|
do {
|
||
|
|
ret = drvr->bus_if->brcmf_bus_rxctl(drvr->dev,
|
||
|
|
(unsigned char *)&prot->msg,
|
||
|
|
len + sizeof(struct brcmf_proto_cdc_dcmd));
|
||
|
|
if (ret < 0)
|
||
|
|
break;
|
||
|
|
} while (CDC_DCMD_ID(le32_to_cpu(prot->msg.flags)) != id);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
brcmf_proto_cdc_query_dcmd(struct brcmf_pub *drvr, int ifidx, uint cmd,
|
||
|
|
void *buf, uint len)
|
||
|
|
{
|
||
|
|
struct brcmf_proto *prot = drvr->prot;
|
||
|
|
struct brcmf_proto_cdc_dcmd *msg = &prot->msg;
|
||
|
|
void *info;
|
||
|
|
int ret = 0, retries = 0;
|
||
|
|
u32 id, flags;
|
||
|
|
|
||
|
|
brcmf_dbg(TRACE, "Enter\n");
|
||
|
|
brcmf_dbg(CTL, "cmd %d len %d\n", cmd, len);
|
||
|
|
|
||
|
|
/* Respond "bcmerror" and "bcmerrorstr" with local cache */
|
||
|
|
if (cmd == BRCMF_C_GET_VAR && buf) {
|
||
|
|
if (!strcmp((char *)buf, "bcmerrorstr")) {
|
||
|
|
strncpy((char *)buf, "bcm_error",
|
||
|
|
BCME_STRLEN);
|
||
|
|
goto done;
|
||
|
|
} else if (!strcmp((char *)buf, "bcmerror")) {
|
||
|
|
*(int *)buf = drvr->dongle_error;
|
||
|
|
goto done;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
memset(msg, 0, sizeof(struct brcmf_proto_cdc_dcmd));
|
||
|
|
|
||
|
|
msg->cmd = cpu_to_le32(cmd);
|
||
|
|
msg->len = cpu_to_le32(len);
|
||
|
|
flags = (++prot->reqid << CDC_DCMD_ID_SHIFT);
|
||
|
|
flags = (flags & ~CDC_DCMD_IF_MASK) |
|
||
|
|
(ifidx << CDC_DCMD_IF_SHIFT);
|
||
|
|
msg->flags = cpu_to_le32(flags);
|
||
|
|
|
||
|
|
if (buf)
|
||
|
|
memcpy(prot->buf, buf, len);
|
||
|
|
|
||
|
|
ret = brcmf_proto_cdc_msg(drvr);
|
||
|
|
if (ret < 0) {
|
||
|
|
brcmf_dbg(ERROR, "brcmf_proto_cdc_msg failed w/status %d\n",
|
||
|
|
ret);
|
||
|
|
goto done;
|
||
|
|
}
|
||
|
|
|
||
|
|
retry:
|
||
|
|
/* wait for interrupt and get first fragment */
|
||
|
|
ret = brcmf_proto_cdc_cmplt(drvr, prot->reqid, len);
|
||
|
|
if (ret < 0)
|
||
|
|
goto done;
|
||
|
|
|
||
|
|
flags = le32_to_cpu(msg->flags);
|
||
|
|
id = (flags & CDC_DCMD_ID_MASK) >> CDC_DCMD_ID_SHIFT;
|
||
|
|
|
||
|
|
if ((id < prot->reqid) && (++retries < RETRIES))
|
||
|
|
goto retry;
|
||
|
|
if (id != prot->reqid) {
|
||
|
|
brcmf_dbg(ERROR, "%s: unexpected request id %d (expected %d)\n",
|
||
|
|
brcmf_ifname(drvr, ifidx), id, prot->reqid);
|
||
|
|
ret = -EINVAL;
|
||
|
|
goto done;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check info buffer */
|
||
|
|
info = (void *)&msg[1];
|
||
|
|
|
||
|
|
/* Copy info buffer */
|
||
|
|
if (buf) {
|
||
|
|
if (ret < (int)len)
|
||
|
|
len = ret;
|
||
|
|
memcpy(buf, info, len);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check the ERROR flag */
|
||
|
|
if (flags & CDC_DCMD_ERROR) {
|
||
|
|
ret = le32_to_cpu(msg->status);
|
||
|
|
/* Cache error from dongle */
|
||
|
|
drvr->dongle_error = ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
done:
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int brcmf_proto_cdc_set_dcmd(struct brcmf_pub *drvr, int ifidx, uint cmd,
|
||
|
|
void *buf, uint len)
|
||
|
|
{
|
||
|
|
struct brcmf_proto *prot = drvr->prot;
|
||
|
|
struct brcmf_proto_cdc_dcmd *msg = &prot->msg;
|
||
|
|
int ret = 0;
|
||
|
|
u32 flags, id;
|
||
|
|
|
||
|
|
brcmf_dbg(TRACE, "Enter\n");
|
||
|
|
brcmf_dbg(CTL, "cmd %d len %d\n", cmd, len);
|
||
|
|
|
||
|
|
memset(msg, 0, sizeof(struct brcmf_proto_cdc_dcmd));
|
||
|
|
|
||
|
|
msg->cmd = cpu_to_le32(cmd);
|
||
|
|
msg->len = cpu_to_le32(len);
|
||
|
|
flags = (++prot->reqid << CDC_DCMD_ID_SHIFT) | CDC_DCMD_SET;
|
||
|
|
flags = (flags & ~CDC_DCMD_IF_MASK) |
|
||
|
|
(ifidx << CDC_DCMD_IF_SHIFT);
|
||
|
|
msg->flags = cpu_to_le32(flags);
|
||
|
|
|
||
|
|
if (buf)
|
||
|
|
memcpy(prot->buf, buf, len);
|
||
|
|
|
||
|
|
ret = brcmf_proto_cdc_msg(drvr);
|
||
|
|
if (ret < 0)
|
||
|
|
goto done;
|
||
|
|
|
||
|
|
ret = brcmf_proto_cdc_cmplt(drvr, prot->reqid, len);
|
||
|
|
if (ret < 0)
|
||
|
|
goto done;
|
||
|
|
|
||
|
|
flags = le32_to_cpu(msg->flags);
|
||
|
|
id = (flags & CDC_DCMD_ID_MASK) >> CDC_DCMD_ID_SHIFT;
|
||
|
|
|
||
|
|
if (id != prot->reqid) {
|
||
|
|
brcmf_dbg(ERROR, "%s: unexpected request id %d (expected %d)\n",
|
||
|
|
brcmf_ifname(drvr, ifidx), id, prot->reqid);
|
||
|
|
ret = -EINVAL;
|
||
|
|
goto done;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Check the ERROR flag */
|
||
|
|
if (flags & CDC_DCMD_ERROR) {
|
||
|
|
ret = le32_to_cpu(msg->status);
|
||
|
|
/* Cache error from dongle */
|
||
|
|
drvr->dongle_error = ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
done:
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
int
|
||
|
|
brcmf_proto_dcmd(struct brcmf_pub *drvr, int ifidx, struct brcmf_dcmd *dcmd,
|
||
|
|
int len)
|
||
|
|
{
|
||
|
|
struct brcmf_proto *prot = drvr->prot;
|
||
|
|
int ret = -1;
|
||
|
|
|
||
|
|
if (drvr->bus_if->state == BRCMF_BUS_DOWN) {
|
||
|
|
brcmf_dbg(ERROR, "bus is down. we have nothing to do.\n");
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
mutex_lock(&drvr->proto_block);
|
||
|
|
|
||
|
|
brcmf_dbg(TRACE, "Enter\n");
|
||
|
|
|
||
|
|
if (len > BRCMF_DCMD_MAXLEN)
|
||
|
|
goto done;
|
||
|
|
|
||
|
|
if (prot->pending == true) {
|
||
|
|
brcmf_dbg(TRACE, "CDC packet is pending!!!! cmd=0x%x (%lu) lastcmd=0x%x (%lu)\n",
|
||
|
|
dcmd->cmd, (unsigned long)dcmd->cmd, prot->lastcmd,
|
||
|
|
(unsigned long)prot->lastcmd);
|
||
|
|
if (dcmd->cmd == BRCMF_C_SET_VAR ||
|
||
|
|
dcmd->cmd == BRCMF_C_GET_VAR)
|
||
|
|
brcmf_dbg(TRACE, "iovar cmd=%s\n", (char *)dcmd->buf);
|
||
|
|
|
||
|
|
goto done;
|
||
|
|
}
|
||
|
|
|
||
|
|
prot->pending = true;
|
||
|
|
prot->lastcmd = dcmd->cmd;
|
||
|
|
if (dcmd->set)
|
||
|
|
ret = brcmf_proto_cdc_set_dcmd(drvr, ifidx, dcmd->cmd,
|
||
|
|
dcmd->buf, len);
|
||
|
|
else {
|
||
|
|
ret = brcmf_proto_cdc_query_dcmd(drvr, ifidx, dcmd->cmd,
|
||
|
|
dcmd->buf, len);
|
||
|
|
if (ret > 0)
|
||
|
|
dcmd->used = ret -
|
||
|
|
sizeof(struct brcmf_proto_cdc_dcmd);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (ret >= 0)
|
||
|
|
ret = 0;
|
||
|
|
else {
|
||
|
|
struct brcmf_proto_cdc_dcmd *msg = &prot->msg;
|
||
|
|
/* len == needed when set/query fails from dongle */
|
||
|
|
dcmd->needed = le32_to_cpu(msg->len);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Intercept the wme_dp dongle cmd here */
|
||
|
|
if (!ret && dcmd->cmd == BRCMF_C_SET_VAR &&
|
||
|
|
!strcmp(dcmd->buf, "wme_dp")) {
|
||
|
|
int slen;
|
||
|
|
__le32 val = 0;
|
||
|
|
|
||
|
|
slen = strlen("wme_dp") + 1;
|
||
|
|
if (len >= (int)(slen + sizeof(int)))
|
||
|
|
memcpy(&val, (char *)dcmd->buf + slen, sizeof(int));
|
||
|
|
drvr->wme_dp = (u8) le32_to_cpu(val);
|
||
|
|
}
|
||
|
|
|
||
|
|
prot->pending = false;
|
||
|
|
|
||
|
|
done:
|
||
|
|
mutex_unlock(&drvr->proto_block);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool pkt_sum_needed(struct sk_buff *skb)
|
||
|
|
{
|
||
|
|
return skb->ip_summed == CHECKSUM_PARTIAL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void pkt_set_sum_good(struct sk_buff *skb, bool x)
|
||
|
|
{
|
||
|
|
skb->ip_summed = (x ? CHECKSUM_UNNECESSARY : CHECKSUM_NONE);
|
||
|
|
}
|
||
|
|
|
||
|
|
void brcmf_proto_hdrpush(struct brcmf_pub *drvr, int ifidx,
|
||
|
|
struct sk_buff *pktbuf)
|
||
|
|
{
|
||
|
|
struct brcmf_proto_bdc_header *h;
|
||
|
|
|
||
|
|
brcmf_dbg(TRACE, "Enter\n");
|
||
|
|
|
||
|
|
/* Push BDC header used to convey priority for buses that don't */
|
||
|
|
|
||
|
|
skb_push(pktbuf, BDC_HEADER_LEN);
|
||
|
|
|
||
|
|
h = (struct brcmf_proto_bdc_header *)(pktbuf->data);
|
||
|
|
|
||
|
|
h->flags = (BDC_PROTO_VER << BDC_FLAG_VER_SHIFT);
|
||
|
|
if (pkt_sum_needed(pktbuf))
|
||
|
|
h->flags |= BDC_FLAG_SUM_NEEDED;
|
||
|
|
|
||
|
|
h->priority = (pktbuf->priority & BDC_PRIORITY_MASK);
|
||
|
|
h->flags2 = 0;
|
||
|
|
h->data_offset = 0;
|
||
|
|
BDC_SET_IF_IDX(h, ifidx);
|
||
|
|
}
|
||
|
|
|
||
|
|
int brcmf_proto_hdrpull(struct device *dev, int *ifidx,
|
||
|
|
struct sk_buff *pktbuf)
|
||
|
|
{
|
||
|
|
struct brcmf_proto_bdc_header *h;
|
||
|
|
struct brcmf_bus *bus_if = dev_get_drvdata(dev);
|
||
|
|
struct brcmf_pub *drvr = bus_if->drvr;
|
||
|
|
|
||
|
|
brcmf_dbg(TRACE, "Enter\n");
|
||
|
|
|
||
|
|
/* Pop BDC header used to convey priority for buses that don't */
|
||
|
|
|
||
|
|
if (pktbuf->len < BDC_HEADER_LEN) {
|
||
|
|
brcmf_dbg(ERROR, "rx data too short (%d < %d)\n",
|
||
|
|
pktbuf->len, BDC_HEADER_LEN);
|
||
|
|
return -EBADE;
|
||
|
|
}
|
||
|
|
|
||
|
|
h = (struct brcmf_proto_bdc_header *)(pktbuf->data);
|
||
|
|
|
||
|
|
*ifidx = BDC_GET_IF_IDX(h);
|
||
|
|
if (*ifidx >= BRCMF_MAX_IFS) {
|
||
|
|
brcmf_dbg(ERROR, "rx data ifnum out of range (%d)\n", *ifidx);
|
||
|
|
return -EBADE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (((h->flags & BDC_FLAG_VER_MASK) >> BDC_FLAG_VER_SHIFT) !=
|
||
|
|
BDC_PROTO_VER) {
|
||
|
|
brcmf_dbg(ERROR, "%s: non-BDC packet received, flags 0x%x\n",
|
||
|
|
brcmf_ifname(drvr, *ifidx), h->flags);
|
||
|
|
return -EBADE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (h->flags & BDC_FLAG_SUM_GOOD) {
|
||
|
|
brcmf_dbg(INFO, "%s: BDC packet received with good rx-csum, flags 0x%x\n",
|
||
|
|
brcmf_ifname(drvr, *ifidx), h->flags);
|
||
|
|
pkt_set_sum_good(pktbuf, true);
|
||
|
|
}
|
||
|
|
|
||
|
|
pktbuf->priority = h->priority & BDC_PRIORITY_MASK;
|
||
|
|
|
||
|
|
skb_pull(pktbuf, BDC_HEADER_LEN);
|
||
|
|
skb_pull(pktbuf, h->data_offset << 2);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int brcmf_proto_attach(struct brcmf_pub *drvr)
|
||
|
|
{
|
||
|
|
struct brcmf_proto *cdc;
|
||
|
|
|
||
|
|
cdc = kzalloc(sizeof(struct brcmf_proto), GFP_ATOMIC);
|
||
|
|
if (!cdc)
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
/* ensure that the msg buf directly follows the cdc msg struct */
|
||
|
|
if ((unsigned long)(&cdc->msg + 1) != (unsigned long)cdc->buf) {
|
||
|
|
brcmf_dbg(ERROR, "struct brcmf_proto is not correctly defined\n");
|
||
|
|
goto fail;
|
||
|
|
}
|
||
|
|
|
||
|
|
drvr->prot = cdc;
|
||
|
|
drvr->hdrlen += BDC_HEADER_LEN;
|
||
|
|
drvr->bus_if->maxctl = BRCMF_DCMD_MAXLEN +
|
||
|
|
sizeof(struct brcmf_proto_cdc_dcmd) + ROUND_UP_MARGIN;
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
fail:
|
||
|
|
kfree(cdc);
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* ~NOTE~ What if another thread is waiting on the semaphore? Holding it? */
|
||
|
|
void brcmf_proto_detach(struct brcmf_pub *drvr)
|
||
|
|
{
|
||
|
|
kfree(drvr->prot);
|
||
|
|
drvr->prot = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
int brcmf_proto_init(struct brcmf_pub *drvr)
|
||
|
|
{
|
||
|
|
int ret = 0;
|
||
|
|
char buf[128];
|
||
|
|
|
||
|
|
brcmf_dbg(TRACE, "Enter\n");
|
||
|
|
|
||
|
|
mutex_lock(&drvr->proto_block);
|
||
|
|
|
||
|
|
/* Get the device MAC address */
|
||
|
|
strcpy(buf, "cur_etheraddr");
|
||
|
|
ret = brcmf_proto_cdc_query_dcmd(drvr, 0, BRCMF_C_GET_VAR,
|
||
|
|
buf, sizeof(buf));
|
||
|
|
if (ret < 0) {
|
||
|
|
mutex_unlock(&drvr->proto_block);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
memcpy(drvr->mac, buf, ETH_ALEN);
|
||
|
|
|
||
|
|
mutex_unlock(&drvr->proto_block);
|
||
|
|
|
||
|
|
ret = brcmf_c_preinit_dcmds(drvr);
|
||
|
|
|
||
|
|
/* Always assumes wl for now */
|
||
|
|
drvr->iswl = true;
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
void brcmf_proto_stop(struct brcmf_pub *drvr)
|
||
|
|
{
|
||
|
|
/* Nothing to do for CDC */
|
||
|
|
}
|