1 files changed, 421 insertions, 0 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
new file mode 100644
index 0000000..f6a2df9
--- /dev/null
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil.c
@@ -0,0 +1,421 @@
+/*
+ * 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 "core.h"
+#include "bus.h"
+#include "debug.h"
+#include "tracepoint.h"
+#include "fwil.h"
+#include "proto.h"
+
+
+#define MAX_HEX_DUMP_LEN	64
+
+#ifdef DEBUG
+static const char * const brcmf_fil_errstr[] = {
+	"BCME_OK",
+	"BCME_ERROR",
+	"BCME_BADARG",
+	"BCME_BADOPTION",
+	"BCME_NOTUP",
+	"BCME_NOTDOWN",
+	"BCME_NOTAP",
+	"BCME_NOTSTA",
+	"BCME_BADKEYIDX",
+	"BCME_RADIOOFF",
+	"BCME_NOTBANDLOCKED",
+	"BCME_NOCLK",
+	"BCME_BADRATESET",
+	"BCME_BADBAND",
+	"BCME_BUFTOOSHORT",
+	"BCME_BUFTOOLONG",
+	"BCME_BUSY",
+	"BCME_NOTASSOCIATED",
+	"BCME_BADSSIDLEN",
+	"BCME_OUTOFRANGECHAN",
+	"BCME_BADCHAN",
+	"BCME_BADADDR",
+	"BCME_NORESOURCE",
+	"BCME_UNSUPPORTED",
+	"BCME_BADLEN",
+	"BCME_NOTREADY",
+	"BCME_EPERM",
+	"BCME_NOMEM",
+	"BCME_ASSOCIATED",
+	"BCME_RANGE",
+	"BCME_NOTFOUND",
+	"BCME_WME_NOT_ENABLED",
+	"BCME_TSPEC_NOTFOUND",
+	"BCME_ACM_NOTSUPPORTED",
+	"BCME_NOT_WME_ASSOCIATION",
+	"BCME_SDIO_ERROR",
+	"BCME_DONGLE_DOWN",
+	"BCME_VERSION",
+	"BCME_TXFAIL",
+	"BCME_RXFAIL",
+	"BCME_NODEVICE",
+	"BCME_NMODE_DISABLED",
+	"BCME_NONRESIDENT",
+	"BCME_SCANREJECT",
+	"BCME_USAGE_ERROR",
+	"BCME_IOCTL_ERROR",
+	"BCME_SERIAL_PORT_ERR",
+	"BCME_DISABLED",
+	"BCME_DECERR",
+	"BCME_ENCERR",
+	"BCME_MICERR",
+	"BCME_REPLAY",
+	"BCME_IE_NOTFOUND",
+};
+
+static const char *brcmf_fil_get_errstr(u32 err)
+{
+	if (err >= ARRAY_SIZE(brcmf_fil_errstr))
+		return "(unknown)";
+
+	return brcmf_fil_errstr[err];
+}
+#else
+static const char *brcmf_fil_get_errstr(u32 err)
+{
+	return "";
+}
+#endif /* DEBUG */
+
+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_UP) {
+		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_set_dcmd(drvr, ifp->ifidx, cmd, data, len);
+	else
+		err = brcmf_proto_query_dcmd(drvr, ifp->ifidx, cmd, data, len);
+
+	if (err >= 0)
+		return 0;
+
+	brcmf_dbg(FIL, "Failed: %s (%d)\n",
+		  brcmf_fil_get_errstr((u32)(-err)), 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, "ifidx=%d, cmd=%d, len=%d\n", ifp->ifidx, cmd, len);
+	brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+			   min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
+
+	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, "ifidx=%d, cmd=%d, len=%d\n", ifp->ifidx, cmd, len);
+	brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+			   min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
+
+	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);
+	brcmf_dbg(FIL, "ifidx=%d, cmd=%d, value=%d\n", ifp->ifidx, cmd, data);
+	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);
+	brcmf_dbg(FIL, "ifidx=%d, cmd=%d, value=%d\n", ifp->ifidx, cmd, *data);
+
+	return err;
+}
+
+static u32
+brcmf_create_iovar(char *name, const 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, const void *data,
+			 u32 len)
+{
+	struct brcmf_pub *drvr = ifp->drvr;
+	s32 err;
+	u32 buflen;
+
+	mutex_lock(&drvr->proto_block);
+
+	brcmf_dbg(FIL, "ifidx=%d, name=%s, len=%d\n", ifp->ifidx, name, len);
+	brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+			   min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
+
+	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, "ifidx=%d, name=%s, len=%d\n", ifp->ifidx, name, len);
+	brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+			   min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
+
+	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 bsscfgidx, char *name, char *data, u32 datalen,
+		    char *buf, u32 buflen)
+{
+	const s8 *prefix = "bsscfg:";
+	s8 *p;
+	u32 prefixlen;
+	u32 namelen;
+	u32 iolen;
+	__le32 bsscfgidx_le;
+
+	if (bsscfgidx == 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(bsscfgidx_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 */
+	bsscfgidx_le = cpu_to_le32(bsscfgidx);
+	memcpy(p, &bsscfgidx_le, sizeof(bsscfgidx_le));
+	p += sizeof(bsscfgidx_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, "ifidx=%d, bsscfgidx=%d, name=%s, len=%d\n", ifp->ifidx,
+		  ifp->bsscfgidx, name, len);
+	brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+			   min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
+
+	buflen = brcmf_create_bsscfg(ifp->bsscfgidx, 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->bsscfgidx, 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, "ifidx=%d, bsscfgidx=%d, name=%s, len=%d\n", ifp->ifidx,
+		  ifp->bsscfgidx, name, len);
+	brcmf_dbg_hex_dump(BRCMF_FIL_ON(), data,
+			   min_t(uint, len, MAX_HEX_DUMP_LEN), "data\n");
+
+	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;
+}