1 files changed, 393 insertions, 0 deletions
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c
new file mode 100644
index 00000000000..ed3e32ce8c2
--- /dev/null
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_common.c
@@ -0,0 +1,393 @@
+/*
+ * 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.
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/netdevice.h>
+#include <brcmu_wifi.h>
+#include <brcmu_utils.h>
+#include "dhd.h"
+#include "dhd_bus.h"
+#include "dhd_dbg.h"
+#include "fwil.h"
+#include "fwil_types.h"
+#include "tracepoint.h"
+
+#define PKTFILTER_BUF_SIZE		128
+#define BRCMF_DEFAULT_BCN_TIMEOUT	3
+#define BRCMF_DEFAULT_SCAN_CHANNEL_TIME	40
+#define BRCMF_DEFAULT_SCAN_UNASSOC_TIME	40
+#define BRCMF_DEFAULT_PACKET_FILTER	"100 0 0 0 0x01 0x00"
+
+/* boost value for RSSI_DELTA in preferred join selection */
+#define BRCMF_JOIN_PREF_RSSI_BOOST	8
+
+
+bool brcmf_c_prec_enq(struct device *dev, struct pktq *q,
+		      struct sk_buff *pkt, int prec)
+{
+	struct sk_buff *p;
+	int eprec = -1;		/* precedence to evict from */
+	bool discard_oldest;
+	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
+	struct brcmf_pub *drvr = bus_if->drvr;
+
+	/* Fast case, precedence queue is not full and we are also not
+	 * exceeding total queue length
+	 */
+	if (!pktq_pfull(q, prec) && !pktq_full(q)) {
+		brcmu_pktq_penq(q, prec, pkt);
+		return true;
+	}
+
+	/* Determine precedence from which to evict packet, if any */
+	if (pktq_pfull(q, prec))
+		eprec = prec;
+	else if (pktq_full(q)) {
+		p = brcmu_pktq_peek_tail(q, &eprec);
+		if (eprec > prec)
+			return false;
+	}
+
+	/* Evict if needed */
+	if (eprec >= 0) {
+		/* Detect queueing to unconfigured precedence */
+		discard_oldest = ac_bitmap_tst(drvr->wme_dp, eprec);
+		if (eprec == prec && !discard_oldest)
+			return false;	/* refuse newer (incoming) packet */
+		/* Evict packet according to discard policy */
+		p = discard_oldest ? brcmu_pktq_pdeq(q, eprec) :
+			brcmu_pktq_pdeq_tail(q, eprec);
+		if (p == NULL)
+			brcmf_err("brcmu_pktq_penq() failed, oldest %d\n",
+				  discard_oldest);
+
+		brcmu_pkt_buf_free_skb(p);
+	}
+
+	/* Enqueue */
+	p = brcmu_pktq_penq(q, prec, pkt);
+	if (p == NULL)
+		brcmf_err("brcmu_pktq_penq() failed\n");
+
+	return p != NULL;
+}
+
+/* Convert user's input in hex pattern to byte-size mask */
+static int brcmf_c_pattern_atoh(char *src, char *dst)
+{
+	int i;
+	if (strncmp(src, "0x", 2) != 0 && strncmp(src, "0X", 2) != 0) {
+		brcmf_err("Mask invalid format. Needs to start with 0x\n");
+		return -EINVAL;
+	}
+	src = src + 2;		/* Skip past 0x */
+	if (strlen(src) % 2 != 0) {
+		brcmf_err("Mask invalid format. Length must be even.\n");
+		return -EINVAL;
+	}
+	for (i = 0; *src != '\0'; i++) {
+		unsigned long res;
+		char num[3];
+		strncpy(num, src, 2);
+		num[2] = '\0';
+		if (kstrtoul(num, 16, &res))
+			return -EINVAL;
+		dst[i] = (u8)res;
+		src += 2;
+	}
+	return i;
+}
+
+static void
+brcmf_c_pktfilter_offload_enable(struct brcmf_if *ifp, char *arg, int enable,
+				 int master_mode)
+{
+	unsigned long res;
+	char *argv;
+	char *arg_save = NULL, *arg_org = NULL;
+	s32 err;
+	struct brcmf_pkt_filter_enable_le enable_parm;
+
+	arg_save = kstrdup(arg, GFP_ATOMIC);
+	if (!arg_save)
+		goto fail;
+
+	arg_org = arg_save;
+
+	argv = strsep(&arg_save, " ");
+
+	if (argv == NULL) {
+		brcmf_err("No args provided\n");
+		goto fail;
+	}
+
+	/* Parse packet filter id. */
+	enable_parm.id = 0;
+	if (!kstrtoul(argv, 0, &res))
+		enable_parm.id = cpu_to_le32((u32)res);
+
+	/* Enable/disable the specified filter. */
+	enable_parm.enable = cpu_to_le32(enable);
+
+	err = brcmf_fil_iovar_data_set(ifp, "pkt_filter_enable", &enable_parm,
+				       sizeof(enable_parm));
+	if (err)
+		brcmf_err("Set pkt_filter_enable error (%d)\n", err);
+
+	/* Control the master mode */
+	err = brcmf_fil_iovar_int_set(ifp, "pkt_filter_mode", master_mode);
+	if (err)
+		brcmf_err("Set pkt_filter_mode error (%d)\n", err);
+
+fail:
+	kfree(arg_org);
+}
+
+static void brcmf_c_pktfilter_offload_set(struct brcmf_if *ifp, char *arg)
+{
+	struct brcmf_pkt_filter_le *pkt_filter;
+	unsigned long res;
+	int buf_len;
+	s32 err;
+	u32 mask_size;
+	u32 pattern_size;
+	char *argv[8], *buf = NULL;
+	int i = 0;
+	char *arg_save = NULL, *arg_org = NULL;
+
+	arg_save = kstrdup(arg, GFP_ATOMIC);
+	if (!arg_save)
+		goto fail;
+
+	arg_org = arg_save;
+
+	buf = kmalloc(PKTFILTER_BUF_SIZE, GFP_ATOMIC);
+	if (!buf)
+		goto fail;
+
+	argv[i] = strsep(&arg_save, " ");
+	while (argv[i]) {
+		i++;
+		if (i >= 8) {
+			brcmf_err("Too many parameters\n");
+			goto fail;
+		}
+		argv[i] = strsep(&arg_save, " ");
+	}
+
+	if (i != 6) {
+		brcmf_err("Not enough args provided %d\n", i);
+		goto fail;
+	}
+
+	pkt_filter = (struct brcmf_pkt_filter_le *)buf;
+
+	/* Parse packet filter id. */
+	pkt_filter->id = 0;
+	if (!kstrtoul(argv[0], 0, &res))
+		pkt_filter->id = cpu_to_le32((u32)res);
+
+	/* Parse filter polarity. */
+	pkt_filter->negate_match = 0;
+	if (!kstrtoul(argv[1], 0, &res))
+		pkt_filter->negate_match = cpu_to_le32((u32)res);
+
+	/* Parse filter type. */
+	pkt_filter->type = 0;
+	if (!kstrtoul(argv[2], 0, &res))
+		pkt_filter->type = cpu_to_le32((u32)res);
+
+	/* Parse pattern filter offset. */
+	pkt_filter->u.pattern.offset = 0;
+	if (!kstrtoul(argv[3], 0, &res))
+		pkt_filter->u.pattern.offset = cpu_to_le32((u32)res);
+
+	/* Parse pattern filter mask. */
+	mask_size = brcmf_c_pattern_atoh(argv[4],
+			(char *)pkt_filter->u.pattern.mask_and_pattern);
+
+	/* Parse pattern filter pattern. */
+	pattern_size = brcmf_c_pattern_atoh(argv[5],
+		(char *)&pkt_filter->u.pattern.mask_and_pattern[mask_size]);
+
+	if (mask_size != pattern_size) {
+		brcmf_err("Mask and pattern not the same size\n");
+		goto fail;
+	}
+
+	pkt_filter->u.pattern.size_bytes = cpu_to_le32(mask_size);
+	buf_len = offsetof(struct brcmf_pkt_filter_le,
+			   u.pattern.mask_and_pattern);
+	buf_len += mask_size + pattern_size;
+
+	err = brcmf_fil_iovar_data_set(ifp, "pkt_filter_add", pkt_filter,
+				       buf_len);
+	if (err)
+		brcmf_err("Set pkt_filter_add error (%d)\n", err);
+
+fail:
+	kfree(arg_org);
+
+	kfree(buf);
+}
+
+int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
+{
+	s8 eventmask[BRCMF_EVENTING_MASK_LEN];
+	u8 buf[BRCMF_DCMD_SMLEN];
+	struct brcmf_join_pref_params join_pref_params[2];
+	char *ptr;
+	s32 err;
+
+	/* retreive mac address */
+	err = brcmf_fil_iovar_data_get(ifp, "cur_etheraddr", ifp->mac_addr,
+				       sizeof(ifp->mac_addr));
+	if (err < 0) {
+		brcmf_err("Retreiving cur_etheraddr failed, %d\n",
+			  err);
+		goto done;
+	}
+	memcpy(ifp->drvr->mac, ifp->mac_addr, sizeof(ifp->drvr->mac));
+
+	/* query for 'ver' to get version info from firmware */
+	memset(buf, 0, sizeof(buf));
+	strcpy(buf, "ver");
+	err = brcmf_fil_iovar_data_get(ifp, "ver", buf, sizeof(buf));
+	if (err < 0) {
+		brcmf_err("Retreiving version information failed, %d\n",
+			  err);
+		goto done;
+	}
+	ptr = (char *)buf;
+	strsep(&ptr, "\n");
+
+	/* Print fw version info */
+	brcmf_err("Firmware version = %s\n", buf);
+
+	/* locate firmware version number for ethtool */
+	ptr = strrchr(buf, ' ') + 1;
+	strlcpy(ifp->drvr->fwver, ptr, sizeof(ifp->drvr->fwver));
+
+	/*
+	 * Setup timeout if Beacons are lost and roam is off to report
+	 * link down
+	 */
+	err = brcmf_fil_iovar_int_set(ifp, "bcn_timeout",
+				      BRCMF_DEFAULT_BCN_TIMEOUT);
+	if (err) {
+		brcmf_err("bcn_timeout error (%d)\n", err);
+		goto done;
+	}
+
+	/* Enable/Disable build-in roaming to allowed ext supplicant to take
+	 * of romaing
+	 */
+	err = brcmf_fil_iovar_int_set(ifp, "roam_off", 1);
+	if (err) {
+		brcmf_err("roam_off error (%d)\n", err);
+		goto done;
+	}
+
+	/* Setup join_pref to select target by RSSI(with boost on 5GHz) */
+	join_pref_params[0].type = BRCMF_JOIN_PREF_RSSI_DELTA;
+	join_pref_params[0].len = 2;
+	join_pref_params[0].rssi_gain = BRCMF_JOIN_PREF_RSSI_BOOST;
+	join_pref_params[0].band = WLC_BAND_5G;
+	join_pref_params[1].type = BRCMF_JOIN_PREF_RSSI;
+	join_pref_params[1].len = 2;
+	join_pref_params[1].rssi_gain = 0;
+	join_pref_params[1].band = 0;
+	err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params,
+				       sizeof(join_pref_params));
+	if (err)
+		brcmf_err("Set join_pref error (%d)\n", err);
+
+	/* Setup event_msgs, enable E_IF */
+	err = brcmf_fil_iovar_data_get(ifp, "event_msgs", eventmask,
+				       BRCMF_EVENTING_MASK_LEN);
+	if (err) {
+		brcmf_err("Get event_msgs error (%d)\n", err);
+		goto done;
+	}
+	setbit(eventmask, BRCMF_E_IF);
+	err = brcmf_fil_iovar_data_set(ifp, "event_msgs", eventmask,
+				       BRCMF_EVENTING_MASK_LEN);
+	if (err) {
+		brcmf_err("Set event_msgs error (%d)\n", err);
+		goto done;
+	}
+
+	/* Setup default scan channel time */
+	err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_CHANNEL_TIME,
+				    BRCMF_DEFAULT_SCAN_CHANNEL_TIME);
+	if (err) {
+		brcmf_err("BRCMF_C_SET_SCAN_CHANNEL_TIME error (%d)\n",
+			  err);
+		goto done;
+	}
+
+	/* Setup default scan unassoc time */
+	err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_SET_SCAN_UNASSOC_TIME,
+				    BRCMF_DEFAULT_SCAN_UNASSOC_TIME);
+	if (err) {
+		brcmf_err("BRCMF_C_SET_SCAN_UNASSOC_TIME error (%d)\n",
+			  err);
+		goto done;
+	}
+
+	/* Setup packet filter */
+	brcmf_c_pktfilter_offload_set(ifp, BRCMF_DEFAULT_PACKET_FILTER);
+	brcmf_c_pktfilter_offload_enable(ifp, BRCMF_DEFAULT_PACKET_FILTER,
+					 0, true);
+
+	/* do bus specific preinit here */
+	err = brcmf_bus_preinit(ifp->drvr->bus_if);
+done:
+	return err;
+}
+
+#ifdef CONFIG_BRCM_TRACING
+void __brcmf_err(const char *func, const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+	pr_err("%s: %pV", func, &vaf);
+	trace_brcmf_err(func, &vaf);
+	va_end(args);
+}
+#endif
+#if defined(CONFIG_BRCM_TRACING) || defined(CONFIG_BRCMDBG)
+void __brcmf_dbg(u32 level, const char *func, const char *fmt, ...)
+{
+	struct va_format vaf = {
+		.fmt = fmt,
+	};
+	va_list args;
+
+	va_start(args, fmt);
+	vaf.va = &args;
+	if (brcmf_msg_level & level)
+		pr_debug("%s %pV", func, &vaf);
+	trace_brcmf_dbg(level, func, &vaf);
+	va_end(args);
+}
+#endif