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path: root/drivers/net/wireless/brcm80211/brcmfmac/fwil.c
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Diffstat (limited to 'drivers/net/wireless/brcm80211/brcmfmac/fwil.c')
-rw-r--r--drivers/net/wireless/brcm80211/brcmfmac/fwil.c344
1 files changed, 344 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwil.c b/drivers/net/wireless/brcm80211/brcmfmac/fwil.c
new file mode 100644
index 000000000000..d8d8b6549dc5
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwil.c
@@ -0,0 +1,344 @@
+/*
+ * Copyright (c) 2012 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.
+ */
+
+/* FWIL is the Firmware Interface Layer. In this module the support functions
+ * are located to set and get variables to and from the firmware.
+ */
+
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <brcmu_utils.h>
+#include <brcmu_wifi.h>
+#include "dhd.h"
+#include "dhd_bus.h"
+#include "dhd_dbg.h"
+#include "fwil.h"
+
+
+#define MAX_HEX_DUMP_LEN 64
+
+
+static s32
+brcmf_fil_cmd_data(struct brcmf_if *ifp, u32 cmd, void *data, u32 len, bool set)
+{
+ struct brcmf_pub *drvr = ifp->drvr;
+ s32 err;
+
+ if (drvr->bus_if->state != BRCMF_BUS_DATA) {
+ brcmf_err("bus is down. we have nothing to do.\n");
+ return -EIO;
+ }
+
+ if (data != NULL)
+ len = min_t(uint, len, BRCMF_DCMD_MAXLEN);
+ if (set)
+ err = brcmf_proto_cdc_set_dcmd(drvr, ifp->idx, cmd, data, len);
+ else
+ err = brcmf_proto_cdc_query_dcmd(drvr, ifp->idx, cmd, data,
+ len);
+
+ if (err >= 0)
+ err = 0;
+ else
+ brcmf_err("Failed err=%d\n", err);
+
+ return err;
+}
+
+s32
+brcmf_fil_cmd_data_set(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
+{
+ s32 err;
+
+ mutex_lock(&ifp->drvr->proto_block);
+
+ brcmf_dbg(FIL, "cmd=%d, len=%d\n", cmd, len);
+ brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+ min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
+
+ err = brcmf_fil_cmd_data(ifp, cmd, data, len, true);
+ mutex_unlock(&ifp->drvr->proto_block);
+
+ return err;
+}
+
+s32
+brcmf_fil_cmd_data_get(struct brcmf_if *ifp, u32 cmd, void *data, u32 len)
+{
+ s32 err;
+
+ mutex_lock(&ifp->drvr->proto_block);
+ err = brcmf_fil_cmd_data(ifp, cmd, data, len, false);
+
+ brcmf_dbg(FIL, "cmd=%d, len=%d\n", cmd, len);
+ brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+ min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
+
+ mutex_unlock(&ifp->drvr->proto_block);
+
+ return err;
+}
+
+
+s32
+brcmf_fil_cmd_int_set(struct brcmf_if *ifp, u32 cmd, u32 data)
+{
+ s32 err;
+ __le32 data_le = cpu_to_le32(data);
+
+ mutex_lock(&ifp->drvr->proto_block);
+ err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), true);
+ mutex_unlock(&ifp->drvr->proto_block);
+
+ return err;
+}
+
+s32
+brcmf_fil_cmd_int_get(struct brcmf_if *ifp, u32 cmd, u32 *data)
+{
+ s32 err;
+ __le32 data_le = cpu_to_le32(*data);
+
+ mutex_lock(&ifp->drvr->proto_block);
+ err = brcmf_fil_cmd_data(ifp, cmd, &data_le, sizeof(data_le), false);
+ mutex_unlock(&ifp->drvr->proto_block);
+ *data = le32_to_cpu(data_le);
+
+ return err;
+}
+
+static u32
+brcmf_create_iovar(char *name, char *data, u32 datalen, char *buf, u32 buflen)
+{
+ u32 len;
+
+ len = strlen(name) + 1;
+
+ if ((len + datalen) > buflen)
+ return 0;
+
+ memcpy(buf, name, len);
+
+ /* append data onto the end of the name string */
+ if (data && datalen)
+ memcpy(&buf[len], data, datalen);
+
+ return len + datalen;
+}
+
+
+s32
+brcmf_fil_iovar_data_set(struct brcmf_if *ifp, char *name, void *data,
+ u32 len)
+{
+ struct brcmf_pub *drvr = ifp->drvr;
+ s32 err;
+ u32 buflen;
+
+ mutex_lock(&drvr->proto_block);
+
+ brcmf_dbg(FIL, "name=%s, len=%d\n", name, len);
+ brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+ min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
+
+ buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
+ sizeof(drvr->proto_buf));
+ if (buflen) {
+ err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
+ buflen, true);
+ } else {
+ err = -EPERM;
+ brcmf_err("Creating iovar failed\n");
+ }
+
+ mutex_unlock(&drvr->proto_block);
+ return err;
+}
+
+s32
+brcmf_fil_iovar_data_get(struct brcmf_if *ifp, char *name, void *data,
+ u32 len)
+{
+ struct brcmf_pub *drvr = ifp->drvr;
+ s32 err;
+ u32 buflen;
+
+ mutex_lock(&drvr->proto_block);
+
+ buflen = brcmf_create_iovar(name, data, len, drvr->proto_buf,
+ sizeof(drvr->proto_buf));
+ if (buflen) {
+ err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
+ buflen, false);
+ if (err == 0)
+ memcpy(data, drvr->proto_buf, len);
+ } else {
+ err = -EPERM;
+ brcmf_err("Creating iovar failed\n");
+ }
+
+ brcmf_dbg(FIL, "name=%s, len=%d\n", name, len);
+ brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+ min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
+
+ mutex_unlock(&drvr->proto_block);
+ return err;
+}
+
+s32
+brcmf_fil_iovar_int_set(struct brcmf_if *ifp, char *name, u32 data)
+{
+ __le32 data_le = cpu_to_le32(data);
+
+ return brcmf_fil_iovar_data_set(ifp, name, &data_le, sizeof(data_le));
+}
+
+s32
+brcmf_fil_iovar_int_get(struct brcmf_if *ifp, char *name, u32 *data)
+{
+ __le32 data_le = cpu_to_le32(*data);
+ s32 err;
+
+ err = brcmf_fil_iovar_data_get(ifp, name, &data_le, sizeof(data_le));
+ if (err == 0)
+ *data = le32_to_cpu(data_le);
+ return err;
+}
+
+static u32
+brcmf_create_bsscfg(s32 bssidx, char *name, char *data, u32 datalen, char *buf,
+ u32 buflen)
+{
+ const s8 *prefix = "bsscfg:";
+ s8 *p;
+ u32 prefixlen;
+ u32 namelen;
+ u32 iolen;
+ __le32 bssidx_le;
+
+ if (bssidx == 0)
+ return brcmf_create_iovar(name, data, datalen, buf, buflen);
+
+ prefixlen = strlen(prefix);
+ namelen = strlen(name) + 1; /* lengh of iovar name + null */
+ iolen = prefixlen + namelen + sizeof(bssidx_le) + datalen;
+
+ if (buflen < iolen) {
+ brcmf_err("buffer is too short\n");
+ return 0;
+ }
+
+ p = buf;
+
+ /* copy prefix, no null */
+ memcpy(p, prefix, prefixlen);
+ p += prefixlen;
+
+ /* copy iovar name including null */
+ memcpy(p, name, namelen);
+ p += namelen;
+
+ /* bss config index as first data */
+ bssidx_le = cpu_to_le32(bssidx);
+ memcpy(p, &bssidx_le, sizeof(bssidx_le));
+ p += sizeof(bssidx_le);
+
+ /* parameter buffer follows */
+ if (datalen)
+ memcpy(p, data, datalen);
+
+ return iolen;
+}
+
+s32
+brcmf_fil_bsscfg_data_set(struct brcmf_if *ifp, char *name,
+ void *data, u32 len)
+{
+ struct brcmf_pub *drvr = ifp->drvr;
+ s32 err;
+ u32 buflen;
+
+ mutex_lock(&drvr->proto_block);
+
+ brcmf_dbg(FIL, "bssidx=%d, name=%s, len=%d\n", ifp->bssidx, name, len);
+ brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+ min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
+
+ buflen = brcmf_create_bsscfg(ifp->bssidx, name, data, len,
+ drvr->proto_buf, sizeof(drvr->proto_buf));
+ if (buflen) {
+ err = brcmf_fil_cmd_data(ifp, BRCMF_C_SET_VAR, drvr->proto_buf,
+ buflen, true);
+ } else {
+ err = -EPERM;
+ brcmf_err("Creating bsscfg failed\n");
+ }
+
+ mutex_unlock(&drvr->proto_block);
+ return err;
+}
+
+s32
+brcmf_fil_bsscfg_data_get(struct brcmf_if *ifp, char *name,
+ void *data, u32 len)
+{
+ struct brcmf_pub *drvr = ifp->drvr;
+ s32 err;
+ u32 buflen;
+
+ mutex_lock(&drvr->proto_block);
+
+ buflen = brcmf_create_bsscfg(ifp->bssidx, name, data, len,
+ drvr->proto_buf, sizeof(drvr->proto_buf));
+ if (buflen) {
+ err = brcmf_fil_cmd_data(ifp, BRCMF_C_GET_VAR, drvr->proto_buf,
+ buflen, false);
+ if (err == 0)
+ memcpy(data, drvr->proto_buf, len);
+ } else {
+ err = -EPERM;
+ brcmf_err("Creating bsscfg failed\n");
+ }
+ brcmf_dbg(FIL, "bssidx=%d, name=%s, len=%d\n", ifp->bssidx, name, len);
+ brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+ min_t(uint, len, MAX_HEX_DUMP_LEN), "data");
+
+ mutex_unlock(&drvr->proto_block);
+ return err;
+
+}
+
+s32
+brcmf_fil_bsscfg_int_set(struct brcmf_if *ifp, char *name, u32 data)
+{
+ __le32 data_le = cpu_to_le32(data);
+
+ return brcmf_fil_bsscfg_data_set(ifp, name, &data_le,
+ sizeof(data_le));
+}
+
+s32
+brcmf_fil_bsscfg_int_get(struct brcmf_if *ifp, char *name, u32 *data)
+{
+ __le32 data_le = cpu_to_le32(*data);
+ s32 err;
+
+ err = brcmf_fil_bsscfg_data_get(ifp, name, &data_le,
+ sizeof(data_le));
+ if (err == 0)
+ *data = le32_to_cpu(data_le);
+ return err;
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.