+++ /dev/null
-/*
- * DHD Protocol Module for CDC and BDC.
- *
- * Copyright (C) 1999-2019, Broadcom.
- *
- * Unless you and Broadcom execute a separate written software license
- * agreement governing use of this software, this software is licensed to you
- * under the terms of the GNU General Public License version 2 (the "GPL"),
- * available at http://www.broadcom.com/licenses/GPLv2.php, with the
- * following added to such license:
- *
- * As a special exception, the copyright holders of this software give you
- * permission to link this software with independent modules, and to copy and
- * distribute the resulting executable under terms of your choice, provided that
- * you also meet, for each linked independent module, the terms and conditions of
- * the license of that module. An independent module is a module which is not
- * derived from this software. The special exception does not apply to any
- * modifications of the software.
- *
- * Notwithstanding the above, under no circumstances may you combine this
- * software in any way with any other Broadcom software provided under a license
- * other than the GPL, without Broadcom's express prior written consent.
- *
- *
- * <<Broadcom-WL-IPTag/Open:>>
- *
- * $Id: dhd_cdc.c 752794 2018-03-19 04:00:31Z $
- *
- * BDC is like CDC, except it includes a header for data packets to convey
- * packet priority over the bus, and flags (e.g. to indicate checksum status
- * for dongle offload.)
- */
-
-#include <typedefs.h>
-#include <osl.h>
-
-#include <bcmutils.h>
-#include <bcmcdc.h>
-#include <bcmendian.h>
-
-#include <dngl_stats.h>
-#include <dhd.h>
-#include <dhd_proto.h>
-#include <dhd_bus.h>
-#include <dhd_dbg.h>
-
-#ifdef PROP_TXSTATUS
-#include <wlfc_proto.h>
-#include <dhd_wlfc.h>
-#endif // endif
-#ifdef BCMDBUS
-#include <dhd_config.h>
-#endif /* BCMDBUS */
-
-#ifdef DHD_ULP
-#include <dhd_ulp.h>
-#endif /* DHD_ULP */
-
-#define RETRIES 2 /* # of retries to retrieve matching ioctl response */
-#define BUS_HEADER_LEN (24+DHD_SDALIGN) /* Must be at least SDPCM_RESERVE
- * defined in dhd_sdio.c (amount of header tha might be added)
- * plus any space that might be needed for alignment padding.
- */
-#define ROUND_UP_MARGIN 2048 /* Biggest SDIO block size possible for
- * round off at the end of buffer
- */
-
-typedef struct dhd_prot {
- uint16 reqid;
- uint8 pending;
- uint32 lastcmd;
-#ifdef BCMDBUS
- uint ctl_completed;
-#endif /* BCMDBUS */
- uint8 bus_header[BUS_HEADER_LEN];
- cdc_ioctl_t msg;
- unsigned char buf[WLC_IOCTL_MAXLEN + ROUND_UP_MARGIN];
-} dhd_prot_t;
-
-uint16
-dhd_prot_get_ioctl_trans_id(dhd_pub_t *dhdp)
-{
- /* SDIO does not have ioctl_trans_id yet, so return -1 */
- return -1;
-}
-
-static int
-dhdcdc_msg(dhd_pub_t *dhd)
-{
-#ifdef BCMDBUS
- int timeout = 0;
-#endif /* BCMDBUS */
- int err = 0;
- dhd_prot_t *prot = dhd->prot;
- int len = ltoh32(prot->msg.len) + sizeof(cdc_ioctl_t);
-
- DHD_TRACE(("%s: Enter\n", __FUNCTION__));
-
- DHD_OS_WAKE_LOCK(dhd);
-
- /* 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 */
-#ifdef BCMDBUS
- DHD_OS_IOCTL_RESP_LOCK(dhd);
- prot->ctl_completed = FALSE;
- err = dbus_send_ctl(dhd->bus, (void *)&prot->msg, len);
- if (err) {
- DHD_ERROR(("dbus_send_ctl error=%d\n", err));
- DHD_OS_IOCTL_RESP_UNLOCK(dhd);
- DHD_OS_WAKE_UNLOCK(dhd);
- return err;
- }
-#else
- err = dhd_bus_txctl(dhd->bus, (uchar*)&prot->msg, len);
-#endif /* BCMDBUS */
-
-#ifdef BCMDBUS
- timeout = dhd_os_ioctl_resp_wait(dhd, &prot->ctl_completed);
- if ((!timeout) || (!prot->ctl_completed)) {
- DHD_ERROR(("Txctl timeout %d ctl_completed %d\n",
- timeout, prot->ctl_completed));
- DHD_ERROR(("Txctl wait timed out\n"));
- err = -1;
- }
- DHD_OS_IOCTL_RESP_UNLOCK(dhd);
-#endif /* BCMDBUS */
-#if defined(BCMDBUS) && defined(INTR_EP_ENABLE)
- /* If the ctl write is successfully completed, wait for an acknowledgement
- * that indicates that it is now ok to do ctl read from the dongle
- */
- if (err != -1) {
- DHD_OS_IOCTL_RESP_LOCK(dhd);
- prot->ctl_completed = FALSE;
- if (dbus_poll_intr(dhd->dbus)) {
- DHD_ERROR(("dbus_poll_intr not submitted\n"));
- } else {
- /* interrupt polling is sucessfully submitted. Wait for dongle to send
- * interrupt
- */
- timeout = dhd_os_ioctl_resp_wait(dhd, &prot->ctl_completed);
- if (!timeout) {
- DHD_ERROR(("intr poll wait timed out\n"));
- }
- }
- DHD_OS_IOCTL_RESP_UNLOCK(dhd);
- }
-#endif /* defined(BCMDBUS) && defined(INTR_EP_ENABLE) */
- DHD_OS_WAKE_UNLOCK(dhd);
- return err;
-}
-
-static int
-dhdcdc_cmplt(dhd_pub_t *dhd, uint32 id, uint32 len)
-{
-#ifdef BCMDBUS
- int timeout = 0;
-#endif /* BCMDBUS */
- int ret;
- int cdc_len = len + sizeof(cdc_ioctl_t);
- dhd_prot_t *prot = dhd->prot;
-
- DHD_TRACE(("%s: Enter\n", __FUNCTION__));
-
- do {
-#ifdef BCMDBUS
- DHD_OS_IOCTL_RESP_LOCK(dhd);
- prot->ctl_completed = FALSE;
- ret = dbus_recv_ctl(dhd->bus, (uchar*)&prot->msg, cdc_len);
- if (ret) {
- DHD_ERROR(("dbus_recv_ctl error=0x%x(%d)\n", ret, ret));
- DHD_OS_IOCTL_RESP_UNLOCK(dhd);
- goto done;
- }
- timeout = dhd_os_ioctl_resp_wait(dhd, &prot->ctl_completed);
- if ((!timeout) || (!prot->ctl_completed)) {
- DHD_ERROR(("Rxctl timeout %d ctl_completed %d\n",
- timeout, prot->ctl_completed));
- ret = -1;
- DHD_OS_IOCTL_RESP_UNLOCK(dhd);
-
- goto done;
- }
- DHD_OS_IOCTL_RESP_UNLOCK(dhd);
-
- ret = cdc_len;
-#else
- ret = dhd_bus_rxctl(dhd->bus, (uchar*)&prot->msg, cdc_len);
-#endif /* BCMDBUS */
- if (ret < 0)
- break;
- } while (CDC_IOC_ID(ltoh32(prot->msg.flags)) != id);
-
-#ifdef BCMDBUS
-done:
-#endif /* BCMDBUS */
- return ret;
-}
-
-static int
-dhdcdc_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len, uint8 action)
-{
- dhd_prot_t *prot = dhd->prot;
- cdc_ioctl_t *msg = &prot->msg;
- int ret = 0, retries = 0;
- uint32 id, flags = 0;
-
- DHD_TRACE(("%s: Enter\n", __FUNCTION__));
- DHD_CTL(("%s: cmd %d len %d\n", __FUNCTION__, cmd, len));
-
- /* Respond "bcmerror" and "bcmerrorstr" with local cache */
- if (cmd == WLC_GET_VAR && buf)
- {
- if (!strcmp((char *)buf, "bcmerrorstr"))
- {
- strncpy((char *)buf, bcmerrorstr(dhd->dongle_error), BCME_STRLEN);
- goto done;
- }
- else if (!strcmp((char *)buf, "bcmerror"))
- {
- *(int *)buf = dhd->dongle_error;
- goto done;
- }
- }
-
- memset(msg, 0, sizeof(cdc_ioctl_t));
-
-#ifdef BCMSPI
- /* 11bit gSPI bus allows 2048bytes of max-data. We restrict 'len'
- * value which is 8Kbytes for various 'get' commands to 2000. 48 bytes are
- * left for sw headers and misc.
- */
- if (len > 2000) {
- DHD_ERROR(("dhdcdc_query_ioctl: len is truncated to 2000 bytes\n"));
- len = 2000;
- }
-#endif /* BCMSPI */
- msg->cmd = htol32(cmd);
- msg->len = htol32(len);
- msg->flags = (++prot->reqid << CDCF_IOC_ID_SHIFT);
- CDC_SET_IF_IDX(msg, ifidx);
- /* add additional action bits */
- action &= WL_IOCTL_ACTION_MASK;
- msg->flags |= (action << CDCF_IOC_ACTION_SHIFT);
- msg->flags = htol32(msg->flags);
-
- if (buf)
- memcpy(prot->buf, buf, len);
-
- if ((ret = dhdcdc_msg(dhd)) < 0) {
- if (!dhd->hang_was_sent)
- DHD_ERROR(("dhdcdc_query_ioctl: dhdcdc_msg failed w/status %d\n", ret));
- goto done;
- }
-
-retry:
- /* wait for interrupt and get first fragment */
- if ((ret = dhdcdc_cmplt(dhd, prot->reqid, len)) < 0)
- goto done;
-
- flags = ltoh32(msg->flags);
- id = (flags & CDCF_IOC_ID_MASK) >> CDCF_IOC_ID_SHIFT;
-
- if ((id < prot->reqid) && (++retries < RETRIES))
- goto retry;
- if (id != prot->reqid) {
- DHD_ERROR(("%s: %s: unexpected request id %d (expected %d)\n",
- dhd_ifname(dhd, ifidx), __FUNCTION__, id, prot->reqid));
- ret = -EINVAL;
- goto done;
- }
-
- /* Copy info buffer */
- if (buf)
- {
- if (ret < (int)len)
- len = ret;
- memcpy(buf, (void*) prot->buf, len);
- }
-
- /* Check the ERROR flag */
- if (flags & CDCF_IOC_ERROR)
- {
- ret = ltoh32(msg->status);
- /* Cache error from dongle */
- dhd->dongle_error = ret;
- }
-
-done:
- return ret;
-}
-
-#ifdef DHD_PM_CONTROL_FROM_FILE
-extern bool g_pm_control;
-#endif /* DHD_PM_CONTROL_FROM_FILE */
-
-static int
-dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len, uint8 action)
-{
- dhd_prot_t *prot = dhd->prot;
- cdc_ioctl_t *msg = &prot->msg;
- int ret = 0;
- uint32 flags, id;
-
- DHD_TRACE(("%s: Enter\n", __FUNCTION__));
- DHD_CTL(("%s: cmd %d len %d\n", __FUNCTION__, cmd, len));
-
- if (dhd->busstate == DHD_BUS_DOWN) {
- DHD_ERROR(("%s : bus is down. we have nothing to do\n", __FUNCTION__));
- return -EIO;
- }
-
- /* don't talk to the dongle if fw is about to be reloaded */
- if (dhd->hang_was_sent) {
- DHD_ERROR(("%s: HANG was sent up earlier. Not talking to the chip\n",
- __FUNCTION__));
- return -EIO;
- }
-
- if (cmd == WLC_SET_PM) {
-#ifdef DHD_PM_CONTROL_FROM_FILE
- if (g_pm_control == TRUE) {
- DHD_ERROR(("%s: SET PM ignored!(Requested:%d)\n",
- __FUNCTION__, buf ? *(char *)buf : 0));
- goto done;
- }
-#endif /* DHD_PM_CONTROL_FROM_FILE */
- DHD_TRACE_HW4(("%s: SET PM to %d\n", __FUNCTION__, buf ? *(char *)buf : 0));
- }
-
- memset(msg, 0, sizeof(cdc_ioctl_t));
-
- msg->cmd = htol32(cmd);
- msg->len = htol32(len);
- msg->flags = (++prot->reqid << CDCF_IOC_ID_SHIFT);
- CDC_SET_IF_IDX(msg, ifidx);
- /* add additional action bits */
- action &= WL_IOCTL_ACTION_MASK;
- msg->flags |= (action << CDCF_IOC_ACTION_SHIFT) | CDCF_IOC_SET;
- msg->flags = htol32(msg->flags);
-
- if (buf)
- memcpy(prot->buf, buf, len);
-
-#ifdef DHD_ULP
- if (buf && (!strncmp(buf, "ulp", sizeof("ulp")))) {
- /* force all the writes after this point to NOT to use cached sbwad value */
- dhd_ulp_disable_cached_sbwad(dhd);
- }
-#endif /* DHD_ULP */
-
- if ((ret = dhdcdc_msg(dhd)) < 0) {
- DHD_ERROR(("%s: dhdcdc_msg failed w/status %d\n", __FUNCTION__, ret));
- goto done;
- }
-
- if ((ret = dhdcdc_cmplt(dhd, prot->reqid, len)) < 0)
- goto done;
-
- flags = ltoh32(msg->flags);
- id = (flags & CDCF_IOC_ID_MASK) >> CDCF_IOC_ID_SHIFT;
-
- if (id != prot->reqid) {
- DHD_ERROR(("%s: %s: unexpected request id %d (expected %d)\n",
- dhd_ifname(dhd, ifidx), __FUNCTION__, id, prot->reqid));
- ret = -EINVAL;
- goto done;
- }
-
-#ifdef DHD_ULP
- /* For ulp prototyping temporary */
- if ((ret = dhd_ulp_check_ulp_request(dhd, buf)) < 0)
- goto done;
-#endif /* DHD_ULP */
-
- /* Check the ERROR flag */
- if (flags & CDCF_IOC_ERROR)
- {
- ret = ltoh32(msg->status);
- /* Cache error from dongle */
- dhd->dongle_error = ret;
- }
-
-done:
- return ret;
-}
-
-#ifdef BCMDBUS
-int
-dhd_prot_ctl_complete(dhd_pub_t *dhd)
-{
- dhd_prot_t *prot;
-
- if (dhd == NULL)
- return BCME_ERROR;
-
- prot = dhd->prot;
-
- ASSERT(prot);
- DHD_OS_IOCTL_RESP_LOCK(dhd);
- prot->ctl_completed = TRUE;
- dhd_os_ioctl_resp_wake(dhd);
- DHD_OS_IOCTL_RESP_UNLOCK(dhd);
- return 0;
-}
-#endif /* BCMDBUS */
-
-int
-dhd_prot_ioctl(dhd_pub_t *dhd, int ifidx, wl_ioctl_t * ioc, void * buf, int len)
-{
- dhd_prot_t *prot = dhd->prot;
- int ret = -1;
- uint8 action;
- static int error_cnt = 0;
-
- if ((dhd->busstate == DHD_BUS_DOWN) || dhd->hang_was_sent) {
- DHD_ERROR(("%s : bus is down. we have nothing to do - bs: %d, has: %d\n",
- __FUNCTION__, dhd->busstate, dhd->hang_was_sent));
- goto done;
- }
-
- DHD_TRACE(("%s: Enter\n", __FUNCTION__));
-
- ASSERT(len <= WLC_IOCTL_MAXLEN);
-
- if (len > WLC_IOCTL_MAXLEN)
- goto done;
-
- if (prot->pending == TRUE) {
- DHD_ERROR(("CDC packet is pending!!!! cmd=0x%x (%lu) lastcmd=0x%x (%lu)\n",
- ioc->cmd, (unsigned long)ioc->cmd, prot->lastcmd,
- (unsigned long)prot->lastcmd));
- if ((ioc->cmd == WLC_SET_VAR) || (ioc->cmd == WLC_GET_VAR)) {
- DHD_TRACE(("iovar cmd=%s\n", buf ? (char*)buf : "\0"));
- }
- goto done;
- }
-
- prot->pending = TRUE;
- prot->lastcmd = ioc->cmd;
- action = ioc->set;
- if (action & WL_IOCTL_ACTION_SET)
- ret = dhdcdc_set_ioctl(dhd, ifidx, ioc->cmd, buf, len, action);
- else {
- ret = dhdcdc_query_ioctl(dhd, ifidx, ioc->cmd, buf, len, action);
- if (ret > 0)
- ioc->used = ret - sizeof(cdc_ioctl_t);
- }
- // terence 20130805: send hang event to wpa_supplicant
- if (ret == -EIO) {
- error_cnt++;
- if (error_cnt > 2)
- ret = -ETIMEDOUT;
- } else
- error_cnt = 0;
-
- /* Too many programs assume ioctl() returns 0 on success */
- if (ret >= 0)
- ret = 0;
- else {
- cdc_ioctl_t *msg = &prot->msg;
- ioc->needed = ltoh32(msg->len); /* len == needed when set/query fails from dongle */
- }
-
- /* Intercept the wme_dp ioctl here */
- if ((!ret) && (ioc->cmd == WLC_SET_VAR) && (!strcmp(buf, "wme_dp"))) {
- int slen, val = 0;
-
- slen = strlen("wme_dp") + 1;
- if (len >= (int)(slen + sizeof(int)))
- bcopy(((char *)buf + slen), &val, sizeof(int));
- dhd->wme_dp = (uint8) ltoh32(val);
- }
-
- prot->pending = FALSE;
-
-done:
-
- return ret;
-}
-
-int
-dhd_prot_iovar_op(dhd_pub_t *dhdp, const char *name,
- void *params, int plen, void *arg, int len, bool set)
-{
- return BCME_UNSUPPORTED;
-}
-
-void
-dhd_prot_dump(dhd_pub_t *dhdp, struct bcmstrbuf *strbuf)
-{
- if (!dhdp || !dhdp->prot) {
- return;
- }
-
- bcm_bprintf(strbuf, "Protocol CDC: reqid %d\n", dhdp->prot->reqid);
-#ifdef PROP_TXSTATUS
- dhd_wlfc_dump(dhdp, strbuf);
-#endif // endif
-}
-
-/* The FreeBSD PKTPUSH could change the packet buf pinter
- so we need to make it changable
-*/
-#define PKTBUF pktbuf
-void
-dhd_prot_hdrpush(dhd_pub_t *dhd, int ifidx, void *PKTBUF)
-{
-#ifdef BDC
- struct bdc_header *h;
-#endif /* BDC */
-
- DHD_TRACE(("%s: Enter\n", __FUNCTION__));
-
-#ifdef BDC
- /* Push BDC header used to convey priority for buses that don't */
-
- PKTPUSH(dhd->osh, PKTBUF, BDC_HEADER_LEN);
-
- h = (struct bdc_header *)PKTDATA(dhd->osh, PKTBUF);
-
- h->flags = (BDC_PROTO_VER << BDC_FLAG_VER_SHIFT);
- if (PKTSUMNEEDED(PKTBUF))
- h->flags |= BDC_FLAG_SUM_NEEDED;
-
- h->priority = (PKTPRIO(PKTBUF) & BDC_PRIORITY_MASK);
- h->flags2 = 0;
- h->dataOffset = 0;
-#endif /* BDC */
- BDC_SET_IF_IDX(h, ifidx);
-}
-#undef PKTBUF /* Only defined in the above routine */
-
-uint
-dhd_prot_hdrlen(dhd_pub_t *dhd, void *PKTBUF)
-{
- uint hdrlen = 0;
-#ifdef BDC
- /* Length of BDC(+WLFC) headers pushed */
- hdrlen = BDC_HEADER_LEN + (((struct bdc_header *)PKTBUF)->dataOffset * 4);
-#endif // endif
- return hdrlen;
-}
-
-int
-dhd_prot_hdrpull(dhd_pub_t *dhd, int *ifidx, void *pktbuf, uchar *reorder_buf_info,
- uint *reorder_info_len)
-{
-#ifdef BDC
- struct bdc_header *h;
-#endif // endif
- uint8 data_offset = 0;
-
- DHD_TRACE(("%s: Enter\n", __FUNCTION__));
-
-#ifdef BDC
- if (reorder_info_len)
- *reorder_info_len = 0;
- /* Pop BDC header used to convey priority for buses that don't */
-
- if (PKTLEN(dhd->osh, pktbuf) < BDC_HEADER_LEN) {
- DHD_ERROR(("%s: rx data too short (%d < %d)\n", __FUNCTION__,
- PKTLEN(dhd->osh, pktbuf), BDC_HEADER_LEN));
- return BCME_ERROR;
- }
-
- h = (struct bdc_header *)PKTDATA(dhd->osh, pktbuf);
-
- if (!ifidx) {
- /* for tx packet, skip the analysis */
- data_offset = h->dataOffset;
- PKTPULL(dhd->osh, pktbuf, BDC_HEADER_LEN);
- goto exit;
- }
-
- *ifidx = BDC_GET_IF_IDX(h);
-
- if (((h->flags & BDC_FLAG_VER_MASK) >> BDC_FLAG_VER_SHIFT) != BDC_PROTO_VER) {
- DHD_ERROR(("%s: non-BDC packet received, flags = 0x%x\n",
- dhd_ifname(dhd, *ifidx), h->flags));
- if (((h->flags & BDC_FLAG_VER_MASK) >> BDC_FLAG_VER_SHIFT) == BDC_PROTO_VER_1)
- h->dataOffset = 0;
- else
- return BCME_ERROR;
- }
-
- if (h->flags & BDC_FLAG_SUM_GOOD) {
- DHD_INFO(("%s: BDC packet received with good rx-csum, flags 0x%x\n",
- dhd_ifname(dhd, *ifidx), h->flags));
- PKTSETSUMGOOD(pktbuf, TRUE);
- }
-
- PKTSETPRIO(pktbuf, (h->priority & BDC_PRIORITY_MASK));
- data_offset = h->dataOffset;
- PKTPULL(dhd->osh, pktbuf, BDC_HEADER_LEN);
-#endif /* BDC */
-
-#ifdef PROP_TXSTATUS
- if (!DHD_PKTTAG_PKTDIR(PKTTAG(pktbuf))) {
- /*
- - parse txstatus only for packets that came from the firmware
- */
- dhd_wlfc_parse_header_info(dhd, pktbuf, (data_offset << 2),
- reorder_buf_info, reorder_info_len);
-
-#ifdef BCMDBUS
-#ifndef DHD_WLFC_THREAD
- dhd_wlfc_commit_packets(dhd,
- (f_commitpkt_t)dhd_bus_txdata, dhd->bus, NULL, FALSE);
-#endif /* DHD_WLFC_THREAD */
-#endif /* BCMDBUS */
- }
-#endif /* PROP_TXSTATUS */
-
-exit:
- PKTPULL(dhd->osh, pktbuf, (data_offset << 2));
- return 0;
-}
-
-int
-dhd_prot_attach(dhd_pub_t *dhd)
-{
- dhd_prot_t *cdc;
-
- if (!(cdc = (dhd_prot_t *)DHD_OS_PREALLOC(dhd, DHD_PREALLOC_PROT, sizeof(dhd_prot_t)))) {
- DHD_ERROR(("%s: kmalloc failed\n", __FUNCTION__));
- goto fail;
- }
- memset(cdc, 0, sizeof(dhd_prot_t));
-
- /* ensure that the msg buf directly follows the cdc msg struct */
- if ((uintptr)(&cdc->msg + 1) != (uintptr)cdc->buf) {
- DHD_ERROR(("dhd_prot_t is not correctly defined\n"));
- goto fail;
- }
-
- dhd->prot = cdc;
-#ifdef BDC
- dhd->hdrlen += BDC_HEADER_LEN;
-#endif // endif
- dhd->maxctl = WLC_IOCTL_MAXLEN + sizeof(cdc_ioctl_t) + ROUND_UP_MARGIN;
- return 0;
-
-fail:
- if (cdc != NULL)
- DHD_OS_PREFREE(dhd, cdc, sizeof(dhd_prot_t));
- return BCME_NOMEM;
-}
-
-/* ~NOTE~ What if another thread is waiting on the semaphore? Holding it? */
-void
-dhd_prot_detach(dhd_pub_t *dhd)
-{
-#ifdef PROP_TXSTATUS
- dhd_wlfc_deinit(dhd);
-#endif // endif
- DHD_OS_PREFREE(dhd, dhd->prot, sizeof(dhd_prot_t));
- dhd->prot = NULL;
-}
-
-void
-dhd_prot_dstats(dhd_pub_t *dhd)
-{
- /* copy bus stats */
-
- dhd->dstats.tx_packets = dhd->tx_packets;
- dhd->dstats.tx_errors = dhd->tx_errors;
- dhd->dstats.rx_packets = dhd->rx_packets;
- dhd->dstats.rx_errors = dhd->rx_errors;
- dhd->dstats.rx_dropped = dhd->rx_dropped;
- dhd->dstats.multicast = dhd->rx_multicast;
- return;
-}
-
-int
-dhd_sync_with_dongle(dhd_pub_t *dhd)
-{
- int ret = 0;
- wlc_rev_info_t revinfo;
- DHD_TRACE(("%s: Enter\n", __FUNCTION__));
-
-#ifdef DHD_FW_COREDUMP
- /* Check the memdump capability */
- dhd_get_memdump_info(dhd);
-#endif /* DHD_FW_COREDUMP */
-
-#ifdef BCMASSERT_LOG
- dhd_get_assert_info(dhd);
-#endif /* BCMASSERT_LOG */
-
- /* Get the device rev info */
- memset(&revinfo, 0, sizeof(revinfo));
- ret = dhd_wl_ioctl_cmd(dhd, WLC_GET_REVINFO, &revinfo, sizeof(revinfo), FALSE, 0);
- if (ret < 0)
- goto done;
-#if defined(BCMDBUS)
- if (dhd_download_fw_on_driverload) {
- dhd_conf_reset(dhd);
- dhd_conf_set_chiprev(dhd, revinfo.chipnum, revinfo.chiprev);
- dhd_conf_preinit(dhd);
- dhd_conf_read_config(dhd, dhd->conf_path);
- }
-#endif /* BCMDBUS */
-
- DHD_SSSR_DUMP_INIT(dhd);
-
- dhd_process_cid_mac(dhd, TRUE);
- ret = dhd_preinit_ioctls(dhd);
- dhd_process_cid_mac(dhd, FALSE);
-
- /* Always assumes wl for now */
- dhd->iswl = TRUE;
-
-done:
- return ret;
-}
-
-int dhd_prot_init(dhd_pub_t *dhd)
-{
- return BCME_OK;
-}
-
-void
-dhd_prot_stop(dhd_pub_t *dhd)
-{
-/* Nothing to do for CDC */
-}
-
-static void
-dhd_get_hostreorder_pkts(void *osh, struct reorder_info *ptr, void **pkt,
- uint32 *pkt_count, void **pplast, uint8 start, uint8 end)
-{
- void *plast = NULL, *p;
- uint32 pkt_cnt = 0;
-
- if (ptr->pend_pkts == 0) {
- DHD_REORDER(("%s: no packets in reorder queue \n", __FUNCTION__));
- *pplast = NULL;
- *pkt_count = 0;
- *pkt = NULL;
- return;
- }
- do {
- p = (void *)(ptr->p[start]);
- ptr->p[start] = NULL;
-
- if (p != NULL) {
- if (plast == NULL)
- *pkt = p;
- else
- PKTSETNEXT(osh, plast, p);
-
- plast = p;
- pkt_cnt++;
- }
- start++;
- if (start > ptr->max_idx)
- start = 0;
- } while (start != end);
- *pplast = plast;
- *pkt_count = pkt_cnt;
- ptr->pend_pkts -= (uint8)pkt_cnt;
-}
-
-int
-dhd_process_pkt_reorder_info(dhd_pub_t *dhd, uchar *reorder_info_buf, uint reorder_info_len,
- void **pkt, uint32 *pkt_count)
-{
- uint8 flow_id, max_idx, cur_idx, exp_idx;
- struct reorder_info *ptr;
- uint8 flags;
- void *cur_pkt, *plast = NULL;
- uint32 cnt = 0;
-
- if (pkt == NULL) {
- if (pkt_count != NULL)
- *pkt_count = 0;
- return 0;
- }
-
- flow_id = reorder_info_buf[WLHOST_REORDERDATA_FLOWID_OFFSET];
- flags = reorder_info_buf[WLHOST_REORDERDATA_FLAGS_OFFSET];
-
- DHD_REORDER(("flow_id %d, flags 0x%02x, idx(%d, %d, %d)\n", flow_id, flags,
- reorder_info_buf[WLHOST_REORDERDATA_CURIDX_OFFSET],
- reorder_info_buf[WLHOST_REORDERDATA_EXPIDX_OFFSET],
- reorder_info_buf[WLHOST_REORDERDATA_MAXIDX_OFFSET]));
-
- /* validate flags and flow id */
- if (flags == 0xFF) {
- DHD_ERROR(("%s: invalid flags...so ignore this packet\n", __FUNCTION__));
- *pkt_count = 1;
- return 0;
- }
-
- cur_pkt = *pkt;
- *pkt = NULL;
-
- ptr = dhd->reorder_bufs[flow_id];
- if (flags & WLHOST_REORDERDATA_DEL_FLOW) {
- uint32 buf_size = sizeof(struct reorder_info);
-
- DHD_REORDER(("%s: Flags indicating to delete a flow id %d\n",
- __FUNCTION__, flow_id));
-
- if (ptr == NULL) {
- DHD_REORDER(("%s: received flags to cleanup, but no flow (%d) yet\n",
- __FUNCTION__, flow_id));
- *pkt_count = 1;
- *pkt = cur_pkt;
- return 0;
- }
-
- dhd_get_hostreorder_pkts(dhd->osh, ptr, pkt, &cnt, &plast,
- ptr->exp_idx, ptr->exp_idx);
- /* set it to the last packet */
- if (plast) {
- PKTSETNEXT(dhd->osh, plast, cur_pkt);
- cnt++;
- }
- else {
- if (cnt != 0) {
- DHD_ERROR(("%s: del flow: something fishy, pending packets %d\n",
- __FUNCTION__, cnt));
- }
- *pkt = cur_pkt;
- cnt = 1;
- }
- buf_size += ((ptr->max_idx + 1) * sizeof(void *));
- MFREE(dhd->osh, ptr, buf_size);
- dhd->reorder_bufs[flow_id] = NULL;
- *pkt_count = cnt;
- return 0;
- }
- /* all the other cases depend on the existance of the reorder struct for that flow id */
- if (ptr == NULL) {
- uint32 buf_size_alloc = sizeof(reorder_info_t);
- max_idx = reorder_info_buf[WLHOST_REORDERDATA_MAXIDX_OFFSET];
-
- buf_size_alloc += ((max_idx + 1) * sizeof(void*));
- /* allocate space to hold the buffers, index etc */
-
- DHD_REORDER(("%s: alloc buffer of size %d size, reorder info id %d, maxidx %d\n",
- __FUNCTION__, buf_size_alloc, flow_id, max_idx));
- ptr = (struct reorder_info *)MALLOC(dhd->osh, buf_size_alloc);
- if (ptr == NULL) {
- DHD_ERROR(("%s: Malloc failed to alloc buffer\n", __FUNCTION__));
- *pkt_count = 1;
- return 0;
- }
- bzero(ptr, buf_size_alloc);
- dhd->reorder_bufs[flow_id] = ptr;
- ptr->p = (void *)(ptr+1);
- ptr->max_idx = max_idx;
- }
- if (flags & WLHOST_REORDERDATA_NEW_HOLE) {
- DHD_REORDER(("%s: new hole, so cleanup pending buffers\n", __FUNCTION__));
- if (ptr->pend_pkts) {
- dhd_get_hostreorder_pkts(dhd->osh, ptr, pkt, &cnt, &plast,
- ptr->exp_idx, ptr->exp_idx);
- ptr->pend_pkts = 0;
- }
- ptr->cur_idx = reorder_info_buf[WLHOST_REORDERDATA_CURIDX_OFFSET];
- ptr->exp_idx = reorder_info_buf[WLHOST_REORDERDATA_EXPIDX_OFFSET];
- ptr->max_idx = reorder_info_buf[WLHOST_REORDERDATA_MAXIDX_OFFSET];
- ptr->p[ptr->cur_idx] = cur_pkt;
- ptr->pend_pkts++;
- *pkt_count = cnt;
- }
- else if (flags & WLHOST_REORDERDATA_CURIDX_VALID) {
- cur_idx = reorder_info_buf[WLHOST_REORDERDATA_CURIDX_OFFSET];
- exp_idx = reorder_info_buf[WLHOST_REORDERDATA_EXPIDX_OFFSET];
-
- if ((exp_idx == ptr->exp_idx) && (cur_idx != ptr->exp_idx)) {
- /* still in the current hole */
- /* enqueue the current on the buffer chain */
- if (ptr->p[cur_idx] != NULL) {
- DHD_REORDER(("%s: HOLE: ERROR buffer pending..free it\n",
- __FUNCTION__));
- PKTFREE(dhd->osh, ptr->p[cur_idx], TRUE);
- ptr->p[cur_idx] = NULL;
- }
- ptr->p[cur_idx] = cur_pkt;
- ptr->pend_pkts++;
- ptr->cur_idx = cur_idx;
- DHD_REORDER(("%s: fill up a hole..pending packets is %d\n",
- __FUNCTION__, ptr->pend_pkts));
- *pkt_count = 0;
- *pkt = NULL;
- }
- else if (ptr->exp_idx == cur_idx) {
- /* got the right one ..flush from cur to exp and update exp */
- DHD_REORDER(("%s: got the right one now, cur_idx is %d\n",
- __FUNCTION__, cur_idx));
- if (ptr->p[cur_idx] != NULL) {
- DHD_REORDER(("%s: Error buffer pending..free it\n",
- __FUNCTION__));
- PKTFREE(dhd->osh, ptr->p[cur_idx], TRUE);
- ptr->p[cur_idx] = NULL;
- }
- ptr->p[cur_idx] = cur_pkt;
- ptr->pend_pkts++;
-
- ptr->cur_idx = cur_idx;
- ptr->exp_idx = exp_idx;
-
- dhd_get_hostreorder_pkts(dhd->osh, ptr, pkt, &cnt, &plast,
- cur_idx, exp_idx);
- *pkt_count = cnt;
- DHD_REORDER(("%s: freeing up buffers %d, still pending %d\n",
- __FUNCTION__, cnt, ptr->pend_pkts));
- }
- else {
- uint8 end_idx;
- bool flush_current = FALSE;
- /* both cur and exp are moved now .. */
- DHD_REORDER(("%s:, flow %d, both moved, cur %d(%d), exp %d(%d)\n",
- __FUNCTION__, flow_id, ptr->cur_idx, cur_idx,
- ptr->exp_idx, exp_idx));
- if (flags & WLHOST_REORDERDATA_FLUSH_ALL)
- end_idx = ptr->exp_idx;
- else
- end_idx = exp_idx;
-
- /* flush pkts first */
- dhd_get_hostreorder_pkts(dhd->osh, ptr, pkt, &cnt, &plast,
- ptr->exp_idx, end_idx);
-
- if (cur_idx == ptr->max_idx) {
- if (exp_idx == 0)
- flush_current = TRUE;
- } else {
- if (exp_idx == cur_idx + 1)
- flush_current = TRUE;
- }
- if (flush_current) {
- if (plast)
- PKTSETNEXT(dhd->osh, plast, cur_pkt);
- else
- *pkt = cur_pkt;
- cnt++;
- }
- else {
- ptr->p[cur_idx] = cur_pkt;
- ptr->pend_pkts++;
- }
- ptr->exp_idx = exp_idx;
- ptr->cur_idx = cur_idx;
- *pkt_count = cnt;
- }
- }
- else {
- uint8 end_idx;
- /* no real packet but update to exp_seq...that means explicit window move */
- exp_idx = reorder_info_buf[WLHOST_REORDERDATA_EXPIDX_OFFSET];
-
- DHD_REORDER(("%s: move the window, cur_idx is %d, exp is %d, new exp is %d\n",
- __FUNCTION__, ptr->cur_idx, ptr->exp_idx, exp_idx));
- if (flags & WLHOST_REORDERDATA_FLUSH_ALL)
- end_idx = ptr->exp_idx;
- else
- end_idx = exp_idx;
-
- dhd_get_hostreorder_pkts(dhd->osh, ptr, pkt, &cnt, &plast, ptr->exp_idx, end_idx);
- if (plast)
- PKTSETNEXT(dhd->osh, plast, cur_pkt);
- else
- *pkt = cur_pkt;
- cnt++;
- *pkt_count = cnt;
- /* set the new expected idx */
- ptr->exp_idx = exp_idx;
- }
- return 0;
-}
projects / GitHub / LineageOS / G12 / android_hardware_amlogic_kernel-modules_dhd-driver.git / blobdiff