staging: brcm80211: add fullmac driver

This patch to the existing bcm80211 directory in the staging tree adds fullmac
driver support for the BCM4329 SDIO chip from Broadcom.  Configuration of the
mac80211 driver or the fullmac driver can be done through menuconfig.

Signed-off-by: Henry Ptasinski <henryp@broadcom.com>
Signed-off-by: Nohee Ko <noheek@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 236 insertions, 0 deletions

diff --git a/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc_linux.c b/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc_linux.c
new file mode 100644
index 000000000000..7d95c3a58fe4
--- /dev/null
+++ b/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc_linux.c
@@ -0,0 +1,236 @@
+/*
+ * 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 <typedefs.h>
+#include <bcmutils.h>
+#include <sdio.h>		/* SDIO Specs */
+#include <bcmsdbus.h>		/* bcmsdh to/from specific controller APIs */
+#include <sdiovar.h>		/* to get msglevel bit values */
+
+#include <linux/sched.h>	/* request_irq() */
+
+#include <linux/mmc/core.h>
+#include <linux/mmc/card.h>
+#include <linux/mmc/sdio_func.h>
+#include <linux/mmc/sdio_ids.h>
+
+#if !defined(SDIO_VENDOR_ID_BROADCOM)
+#define SDIO_VENDOR_ID_BROADCOM		0x02d0
+#endif				/* !defined(SDIO_VENDOR_ID_BROADCOM) */
+
+#define SDIO_DEVICE_ID_BROADCOM_DEFAULT	0x0000
+
+#if !defined(SDIO_DEVICE_ID_BROADCOM_4325_SDGWB)
+#define SDIO_DEVICE_ID_BROADCOM_4325_SDGWB	0x0492	/* BCM94325SDGWB */
+#endif		/* !defined(SDIO_DEVICE_ID_BROADCOM_4325_SDGWB) */
+#if !defined(SDIO_DEVICE_ID_BROADCOM_4325)
+#define SDIO_DEVICE_ID_BROADCOM_4325	0x0493
+#endif		/* !defined(SDIO_DEVICE_ID_BROADCOM_4325) */
+#if !defined(SDIO_DEVICE_ID_BROADCOM_4329)
+#define SDIO_DEVICE_ID_BROADCOM_4329	0x4329
+#endif		/* !defined(SDIO_DEVICE_ID_BROADCOM_4329) */
+#if !defined(SDIO_DEVICE_ID_BROADCOM_4319)
+#define SDIO_DEVICE_ID_BROADCOM_4319	0x4319
+#endif		/* !defined(SDIO_DEVICE_ID_BROADCOM_4329) */
+
+#include <bcmsdh_sdmmc.h>
+
+#include <dhd_dbg.h>
+#ifdef CONFIG_CFG80211
+#include <wl_cfg80211.h>
+#endif
+
+extern void sdioh_sdmmc_devintr_off(sdioh_info_t *sd);
+extern void sdioh_sdmmc_devintr_on(sdioh_info_t *sd);
+
+int sdio_function_init(void);
+void sdio_function_cleanup(void);
+
+/* module param defaults */
+static int clockoverride = 0;
+
+module_param(clockoverride, int, 0644);
+MODULE_PARM_DESC(clockoverride, "SDIO card clock override");
+
+PBCMSDH_SDMMC_INSTANCE gInstance;
+
+/* Maximum number of bcmsdh_sdmmc devices supported by driver */
+#define BCMSDH_SDMMC_MAX_DEVICES 1
+
+extern int bcmsdh_probe(struct device *dev);
+extern int bcmsdh_remove(struct device *dev);
+struct device sdmmc_dev;
+
+static int bcmsdh_sdmmc_probe(struct sdio_func *func,
+			      const struct sdio_device_id *id)
+{
+	int ret = 0;
+	static struct sdio_func sdio_func_0;
+	sd_trace(("bcmsdh_sdmmc: %s Enter\n", __func__));
+	sd_trace(("sdio_bcmsdh: func->class=%x\n", func->class));
+	sd_trace(("sdio_vendor: 0x%04x\n", func->vendor));
+	sd_trace(("sdio_device: 0x%04x\n", func->device));
+	sd_trace(("Function#: 0x%04x\n", func->num));
+
+	if (func->num == 1) {
+		sdio_func_0.num = 0;
+		sdio_func_0.card = func->card;
+		gInstance->func[0] = &sdio_func_0;
+		if (func->device == 0x4) {	/* 4318 */
+			gInstance->func[2] = NULL;
+			sd_trace(("NIC found, calling bcmsdh_probe...\n"));
+			ret = bcmsdh_probe(&sdmmc_dev);
+		}
+	}
+
+	gInstance->func[func->num] = func;
+
+	if (func->num == 2) {
+#ifdef CONFIG_CFG80211
+		wl_cfg80211_sdio_func(func);
+#endif
+		sd_trace(("F2 found, calling bcmsdh_probe...\n"));
+		ret = bcmsdh_probe(&sdmmc_dev);
+	}
+
+	return ret;
+}
+
+static void bcmsdh_sdmmc_remove(struct sdio_func *func)
+{
+	sd_trace(("bcmsdh_sdmmc: %s Enter\n", __func__));
+	sd_info(("sdio_bcmsdh: func->class=%x\n", func->class));
+	sd_info(("sdio_vendor: 0x%04x\n", func->vendor));
+	sd_info(("sdio_device: 0x%04x\n", func->device));
+	sd_info(("Function#: 0x%04x\n", func->num));
+
+	if (func->num == 2) {
+		sd_trace(("F2 found, calling bcmsdh_remove...\n"));
+		bcmsdh_remove(&sdmmc_dev);
+	}
+}
+
+/* devices we support, null terminated */
+static const struct sdio_device_id bcmsdh_sdmmc_ids[] = {
+	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_DEFAULT)},
+	{SDIO_DEVICE
+	 (SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4325_SDGWB)},
+	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4325)},
+	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
+	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4319)},
+	{ /* end: all zeroes */ },
+};
+
+MODULE_DEVICE_TABLE(sdio, bcmsdh_sdmmc_ids);
+
+static struct sdio_driver bcmsdh_sdmmc_driver = {
+	.probe = bcmsdh_sdmmc_probe,
+	.remove = bcmsdh_sdmmc_remove,
+	.name = "brcmfmac",
+	.id_table = bcmsdh_sdmmc_ids,
+};
+
+struct sdos_info {
+	sdioh_info_t *sd;
+	spinlock_t lock;
+};
+
+int sdioh_sdmmc_osinit(sdioh_info_t *sd)
+{
+	struct sdos_info *sdos;
+
+	sdos = (struct sdos_info *)MALLOC(sd->osh, sizeof(struct sdos_info));
+	sd->sdos_info = (void *)sdos;
+	if (sdos == NULL)
+		return BCME_NOMEM;
+
+	sdos->sd = sd;
+	spin_lock_init(&sdos->lock);
+	return BCME_OK;
+}
+
+void sdioh_sdmmc_osfree(sdioh_info_t *sd)
+{
+	struct sdos_info *sdos;
+	ASSERT(sd && sd->sdos_info);
+
+	sdos = (struct sdos_info *)sd->sdos_info;
+	MFREE(sd->osh, sdos, sizeof(struct sdos_info));
+}
+
+/* Interrupt enable/disable */
+SDIOH_API_RC sdioh_interrupt_set(sdioh_info_t *sd, bool enable)
+{
+	ulong flags;
+	struct sdos_info *sdos;
+
+	sd_trace(("%s: %s\n", __func__, enable ? "Enabling" : "Disabling"));
+
+	sdos = (struct sdos_info *)sd->sdos_info;
+	ASSERT(sdos);
+
+#if !defined(OOB_INTR_ONLY)
+	if (enable && !(sd->intr_handler && sd->intr_handler_arg)) {
+		sd_err(("%s: no handler registered, will not enable\n",
+			__func__));
+		return SDIOH_API_RC_FAIL;
+	}
+#endif				/* !defined(OOB_INTR_ONLY) */
+
+	/* Ensure atomicity for enable/disable calls */
+	spin_lock_irqsave(&sdos->lock, flags);
+
+	sd->client_intr_enabled = enable;
+	if (enable)
+		sdioh_sdmmc_devintr_on(sd);
+	else
+		sdioh_sdmmc_devintr_off(sd);
+
+	spin_unlock_irqrestore(&sdos->lock, flags);
+
+	return SDIOH_API_RC_SUCCESS;
+}
+
+/*
+ * module init
+*/
+int sdio_function_init(void)
+{
+	int error = 0;
+	sd_trace(("bcmsdh_sdmmc: %s Enter\n", __func__));
+
+	gInstance = kzalloc(sizeof(BCMSDH_SDMMC_INSTANCE), GFP_KERNEL);
+	if (!gInstance)
+		return -ENOMEM;
+
+	bzero(&sdmmc_dev, sizeof(sdmmc_dev));
+	error = sdio_register_driver(&bcmsdh_sdmmc_driver);
+
+	return error;
+}
+
+/*
+ * module cleanup
+*/
+extern int bcmsdh_remove(struct device *dev);
+void sdio_function_cleanup(void)
+{
+	sd_trace(("%s Enter\n", __func__));
+
+	sdio_unregister_driver(&bcmsdh_sdmmc_driver);
+
+	kfree(gInstance);
+}