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532 lines
12 KiB
532 lines
12 KiB
// SPDX-License-Identifier: ISC |
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/* |
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* Copyright (c) 2012 Broadcom Corporation |
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*/ |
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|
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/* FWIL is the Firmware Interface Layer. In this module the support functions |
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* are located to set and get variables to and from the firmware. |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/netdevice.h> |
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#include <brcmu_utils.h> |
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#include <brcmu_wifi.h> |
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#include "core.h" |
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#include "bus.h" |
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#include "debug.h" |
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#include "tracepoint.h" |
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#include "xtlv.h" |
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#include "fwil.h" |
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#include "proto.h" |
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#define MAX_HEX_DUMP_LEN 64 |
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#ifdef DEBUG |
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static const char * const brcmf_fil_errstr[] = { |
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"BCME_OK", |
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"BCME_ERROR", |
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"BCME_BADARG", |
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"BCME_BADOPTION", |
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"BCME_NOTUP", |
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"BCME_NOTDOWN", |
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"BCME_NOTAP", |
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"BCME_NOTSTA", |
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"BCME_BADKEYIDX", |
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"BCME_RADIOOFF", |
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"BCME_NOTBANDLOCKED", |
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"BCME_NOCLK", |
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"BCME_BADRATESET", |
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"BCME_BADBAND", |
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"BCME_BUFTOOSHORT", |
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"BCME_BUFTOOLONG", |
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"BCME_BUSY", |
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"BCME_NOTASSOCIATED", |
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"BCME_BADSSIDLEN", |
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"BCME_OUTOFRANGECHAN", |
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"BCME_BADCHAN", |
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"BCME_BADADDR", |
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"BCME_NORESOURCE", |
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"BCME_UNSUPPORTED", |
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"BCME_BADLEN", |
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"BCME_NOTREADY", |
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"BCME_EPERM", |
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"BCME_NOMEM", |
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"BCME_ASSOCIATED", |
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"BCME_RANGE", |
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"BCME_NOTFOUND", |
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"BCME_WME_NOT_ENABLED", |
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"BCME_TSPEC_NOTFOUND", |
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"BCME_ACM_NOTSUPPORTED", |
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"BCME_NOT_WME_ASSOCIATION", |
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"BCME_SDIO_ERROR", |
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"BCME_DONGLE_DOWN", |
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"BCME_VERSION", |
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"BCME_TXFAIL", |
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"BCME_RXFAIL", |
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"BCME_NODEVICE", |
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"BCME_NMODE_DISABLED", |
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"BCME_NONRESIDENT", |
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"BCME_SCANREJECT", |
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"BCME_USAGE_ERROR", |
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"BCME_IOCTL_ERROR", |
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"BCME_SERIAL_PORT_ERR", |
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"BCME_DISABLED", |
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"BCME_DECERR", |
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"BCME_ENCERR", |
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"BCME_MICERR", |
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"BCME_REPLAY", |
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"BCME_IE_NOTFOUND", |
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}; |
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static const char *brcmf_fil_get_errstr(u32 err) |
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{ |
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if (err >= ARRAY_SIZE(brcmf_fil_errstr)) |
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return "(unknown)"; |
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return brcmf_fil_errstr[err]; |
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} |
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#else |
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static const char *brcmf_fil_get_errstr(u32 err) |
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{ |
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return ""; |
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} |
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#endif /* DEBUG */ |
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static s32 |
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brcmf_fil_cmd_data(struct brcmf_if *ifp, u32 cmd, void *data, u32 len, bool set) |
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{ |
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struct brcmf_pub *drvr = ifp->drvr; |
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s32 err, fwerr; |
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if (drvr->bus_if->state != BRCMF_BUS_UP) { |
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bphy_err(drvr, "bus is down. we have nothing to do.\n"); |
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return -EIO; |
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} |
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if (data != NULL) |
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len = min_t(uint, len, BRCMF_DCMD_MAXLEN); |
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if (set) |
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err = brcmf_proto_set_dcmd(drvr, ifp->ifidx, cmd, |
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data, len, &fwerr); |
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else |
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err = brcmf_proto_query_dcmd(drvr, ifp->ifidx, cmd, |
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data, len, &fwerr); |
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if (err) { |
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brcmf_dbg(FIL, "Failed: error=%d\n", err); |
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} else if (fwerr < 0) { |
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brcmf_dbg(FIL, "Firmware error: %s (%d)\n", |
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brcmf_fil_get_errstr((u32)(-fwerr)), fwerr); |
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err = -EBADE; |
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} |
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if (ifp->fwil_fwerr) |
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return fwerr; |
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return err; |
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} |
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s32 |
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brcmf_fil_cmd_data_set(struct brcmf_if *ifp, u32 cmd, void *data, u32 len) |
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{ |
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s32 err; |
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mutex_lock(&ifp->drvr->proto_block); |
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brcmf_dbg(FIL, "ifidx=%d, cmd=%d, len=%d\n", ifp->ifidx, cmd, len); |
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brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, |
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min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n"); |
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err = brcmf_fil_cmd_data(ifp, cmd, data, len, true); |
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mutex_unlock(&ifp->drvr->proto_block); |
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return err; |
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} |
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s32 |
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brcmf_fil_cmd_data_get(struct brcmf_if *ifp, u32 cmd, void *data, u32 len) |
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{ |
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s32 err; |
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mutex_lock(&ifp->drvr->proto_block); |
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err = brcmf_fil_cmd_data(ifp, cmd, data, len, false); |
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brcmf_dbg(FIL, "ifidx=%d, cmd=%d, len=%d, err=%d\n", ifp->ifidx, cmd, |
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len, err); |
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brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, |
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min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n"); |
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mutex_unlock(&ifp->drvr->proto_block); |
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return err; |
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} |
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s32 |
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brcmf_fil_cmd_int_set(struct brcmf_if *ifp, u32 cmd, u32 data) |
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{ |
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s32 err; |
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__le32 data_le = cpu_to_le32(data); |
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mutex_lock(&ifp->drvr->proto_block); |
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brcmf_dbg(FIL, "ifidx=%d, cmd=%d, value=%d\n", ifp->ifidx, cmd, data); |
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err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), true); |
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mutex_unlock(&ifp->drvr->proto_block); |
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return err; |
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} |
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s32 |
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brcmf_fil_cmd_int_get(struct brcmf_if *ifp, u32 cmd, u32 *data) |
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{ |
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s32 err; |
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__le32 data_le = cpu_to_le32(*data); |
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mutex_lock(&ifp->drvr->proto_block); |
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err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), false); |
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mutex_unlock(&ifp->drvr->proto_block); |
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*data = le32_to_cpu(data_le); |
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brcmf_dbg(FIL, "ifidx=%d, cmd=%d, value=%d\n", ifp->ifidx, cmd, *data); |
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return err; |
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} |
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static u32 |
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brcmf_create_iovar(char *name, const char *data, u32 datalen, |
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char *buf, u32 buflen) |
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{ |
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u32 len; |
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len = strlen(name) + 1; |
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if ((len + datalen) > buflen) |
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return 0; |
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memcpy(buf, name, len); |
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/* append data onto the end of the name string */ |
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if (data && datalen) |
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memcpy(&buf[len], data, datalen); |
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return len + datalen; |
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} |
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s32 |
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brcmf_fil_iovar_data_set(struct brcmf_if *ifp, char *name, const void *data, |
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u32 len) |
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{ |
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struct brcmf_pub *drvr = ifp->drvr; |
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s32 err; |
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u32 buflen; |
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mutex_lock(&drvr->proto_block); |
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brcmf_dbg(FIL, "ifidx=%d, name=%s, len=%d\n", ifp->ifidx, name, len); |
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brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, |
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min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n"); |
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buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf, |
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sizeof(drvr->proto_buf)); |
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if (buflen) { |
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err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf, |
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buflen, true); |
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} else { |
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err = -EPERM; |
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bphy_err(drvr, "Creating iovar failed\n"); |
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} |
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mutex_unlock(&drvr->proto_block); |
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return err; |
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} |
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s32 |
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brcmf_fil_iovar_data_get(struct brcmf_if *ifp, char *name, void *data, |
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u32 len) |
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{ |
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struct brcmf_pub *drvr = ifp->drvr; |
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s32 err; |
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u32 buflen; |
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mutex_lock(&drvr->proto_block); |
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buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf, |
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sizeof(drvr->proto_buf)); |
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if (buflen) { |
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err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf, |
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buflen, false); |
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if (err == 0) |
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memcpy(data, drvr->proto_buf, len); |
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} else { |
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err = -EPERM; |
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bphy_err(drvr, "Creating iovar failed\n"); |
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} |
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brcmf_dbg(FIL, "ifidx=%d, name=%s, len=%d, err=%d\n", ifp->ifidx, name, |
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len, err); |
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brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, |
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min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n"); |
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mutex_unlock(&drvr->proto_block); |
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return err; |
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} |
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s32 |
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brcmf_fil_iovar_int_set(struct brcmf_if *ifp, char *name, u32 data) |
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{ |
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__le32 data_le = cpu_to_le32(data); |
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return brcmf_fil_iovar_data_set(ifp, name, &data_le, sizeof(data_le)); |
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} |
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s32 |
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brcmf_fil_iovar_int_get(struct brcmf_if *ifp, char *name, u32 *data) |
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{ |
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__le32 data_le = cpu_to_le32(*data); |
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s32 err; |
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err = brcmf_fil_iovar_data_get(ifp, name, &data_le, sizeof(data_le)); |
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if (err == 0) |
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*data = le32_to_cpu(data_le); |
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return err; |
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} |
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static u32 |
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brcmf_create_bsscfg(s32 bsscfgidx, char *name, char *data, u32 datalen, |
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char *buf, u32 buflen) |
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{ |
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const s8 *prefix = "bsscfg:"; |
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s8 *p; |
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u32 prefixlen; |
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u32 namelen; |
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u32 iolen; |
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__le32 bsscfgidx_le; |
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if (bsscfgidx == 0) |
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return brcmf_create_iovar(name, data, datalen, buf, buflen); |
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prefixlen = strlen(prefix); |
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namelen = strlen(name) + 1; /* length of iovar name + null */ |
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iolen = prefixlen + namelen + sizeof(bsscfgidx_le) + datalen; |
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if (buflen < iolen) { |
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brcmf_err("buffer is too short\n"); |
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return 0; |
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} |
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p = buf; |
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/* copy prefix, no null */ |
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memcpy(p, prefix, prefixlen); |
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p += prefixlen; |
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/* copy iovar name including null */ |
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memcpy(p, name, namelen); |
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p += namelen; |
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/* bss config index as first data */ |
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bsscfgidx_le = cpu_to_le32(bsscfgidx); |
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memcpy(p, &bsscfgidx_le, sizeof(bsscfgidx_le)); |
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p += sizeof(bsscfgidx_le); |
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/* parameter buffer follows */ |
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if (datalen) |
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memcpy(p, data, datalen); |
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return iolen; |
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} |
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s32 |
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brcmf_fil_bsscfg_data_set(struct brcmf_if *ifp, char *name, |
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void *data, u32 len) |
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{ |
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struct brcmf_pub *drvr = ifp->drvr; |
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s32 err; |
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u32 buflen; |
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mutex_lock(&drvr->proto_block); |
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brcmf_dbg(FIL, "ifidx=%d, bsscfgidx=%d, name=%s, len=%d\n", ifp->ifidx, |
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ifp->bsscfgidx, name, len); |
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brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, |
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min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n"); |
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buflen = brcmf_create_bsscfg(ifp->bsscfgidx, name, data, len, |
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drvr->proto_buf, sizeof(drvr->proto_buf)); |
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if (buflen) { |
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err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf, |
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buflen, true); |
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} else { |
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err = -EPERM; |
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bphy_err(drvr, "Creating bsscfg failed\n"); |
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} |
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mutex_unlock(&drvr->proto_block); |
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return err; |
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} |
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s32 |
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brcmf_fil_bsscfg_data_get(struct brcmf_if *ifp, char *name, |
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void *data, u32 len) |
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{ |
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struct brcmf_pub *drvr = ifp->drvr; |
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s32 err; |
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u32 buflen; |
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mutex_lock(&drvr->proto_block); |
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buflen = brcmf_create_bsscfg(ifp->bsscfgidx, name, data, len, |
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drvr->proto_buf, sizeof(drvr->proto_buf)); |
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if (buflen) { |
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err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf, |
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buflen, false); |
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if (err == 0) |
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memcpy(data, drvr->proto_buf, len); |
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} else { |
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err = -EPERM; |
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bphy_err(drvr, "Creating bsscfg failed\n"); |
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} |
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brcmf_dbg(FIL, "ifidx=%d, bsscfgidx=%d, name=%s, len=%d, err=%d\n", |
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ifp->ifidx, ifp->bsscfgidx, name, len, err); |
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brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, |
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min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n"); |
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mutex_unlock(&drvr->proto_block); |
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return err; |
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} |
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s32 |
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brcmf_fil_bsscfg_int_set(struct brcmf_if *ifp, char *name, u32 data) |
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{ |
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__le32 data_le = cpu_to_le32(data); |
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return brcmf_fil_bsscfg_data_set(ifp, name, &data_le, |
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sizeof(data_le)); |
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} |
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s32 |
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brcmf_fil_bsscfg_int_get(struct brcmf_if *ifp, char *name, u32 *data) |
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{ |
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__le32 data_le = cpu_to_le32(*data); |
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s32 err; |
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err = brcmf_fil_bsscfg_data_get(ifp, name, &data_le, |
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sizeof(data_le)); |
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if (err == 0) |
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*data = le32_to_cpu(data_le); |
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return err; |
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} |
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static u32 brcmf_create_xtlv(char *name, u16 id, char *data, u32 len, |
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char *buf, u32 buflen) |
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{ |
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u32 iolen; |
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u32 nmlen; |
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nmlen = strlen(name) + 1; |
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iolen = nmlen + brcmf_xtlv_data_size(len, BRCMF_XTLV_OPTION_ALIGN32); |
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if (iolen > buflen) { |
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brcmf_err("buffer is too short\n"); |
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return 0; |
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} |
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memcpy(buf, name, nmlen); |
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brcmf_xtlv_pack_header((void *)(buf + nmlen), id, len, data, |
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BRCMF_XTLV_OPTION_ALIGN32); |
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return iolen; |
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} |
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s32 brcmf_fil_xtlv_data_set(struct brcmf_if *ifp, char *name, u16 id, |
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void *data, u32 len) |
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{ |
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struct brcmf_pub *drvr = ifp->drvr; |
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s32 err; |
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u32 buflen; |
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mutex_lock(&drvr->proto_block); |
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brcmf_dbg(FIL, "ifidx=%d, name=%s, id=%u, len=%u\n", ifp->ifidx, name, |
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id, len); |
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brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, |
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min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n"); |
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buflen = brcmf_create_xtlv(name, id, data, len, |
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drvr->proto_buf, sizeof(drvr->proto_buf)); |
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if (buflen) { |
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err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf, |
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buflen, true); |
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} else { |
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err = -EPERM; |
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bphy_err(drvr, "Creating xtlv failed\n"); |
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} |
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mutex_unlock(&drvr->proto_block); |
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return err; |
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} |
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s32 brcmf_fil_xtlv_data_get(struct brcmf_if *ifp, char *name, u16 id, |
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void *data, u32 len) |
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{ |
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struct brcmf_pub *drvr = ifp->drvr; |
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s32 err; |
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u32 buflen; |
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mutex_lock(&drvr->proto_block); |
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buflen = brcmf_create_xtlv(name, id, data, len, |
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drvr->proto_buf, sizeof(drvr->proto_buf)); |
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if (buflen) { |
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err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf, |
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buflen, false); |
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if (err == 0) |
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memcpy(data, drvr->proto_buf, len); |
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} else { |
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err = -EPERM; |
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bphy_err(drvr, "Creating bsscfg failed\n"); |
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} |
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brcmf_dbg(FIL, "ifidx=%d, name=%s, id=%u, len=%u, err=%d\n", |
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ifp->ifidx, name, id, len, err); |
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brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data, |
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min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n"); |
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mutex_unlock(&drvr->proto_block); |
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return err; |
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} |
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s32 brcmf_fil_xtlv_int_set(struct brcmf_if *ifp, char *name, u16 id, u32 data) |
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{ |
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__le32 data_le = cpu_to_le32(data); |
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return brcmf_fil_xtlv_data_set(ifp, name, id, &data_le, |
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sizeof(data_le)); |
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} |
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s32 brcmf_fil_xtlv_int_get(struct brcmf_if *ifp, char *name, u16 id, u32 *data) |
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{ |
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__le32 data_le = cpu_to_le32(*data); |
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s32 err; |
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err = brcmf_fil_xtlv_data_get(ifp, name, id, &data_le, sizeof(data_le)); |
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if (err == 0) |
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*data = le32_to_cpu(data_le); |
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return err; |
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} |
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s32 brcmf_fil_xtlv_int8_get(struct brcmf_if *ifp, char *name, u16 id, u8 *data) |
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{ |
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return brcmf_fil_xtlv_data_get(ifp, name, id, data, sizeof(*data)); |
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} |
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s32 brcmf_fil_xtlv_int16_get(struct brcmf_if *ifp, char *name, u16 id, u16 *data) |
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{ |
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__le16 data_le = cpu_to_le16(*data); |
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s32 err; |
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err = brcmf_fil_xtlv_data_get(ifp, name, id, &data_le, sizeof(data_le)); |
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if (err == 0) |
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*data = le16_to_cpu(data_le); |
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return err; |
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} |
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