--- /dev/null
+/*
+ * BCMSDH Function Driver for the native SDIO/MMC driver in the Linux Kernel
+ *
+ * Copyright (C) 1999-2010, Broadcom Corporation
+ *
+ * Unless you and Broadcom execute a separate written software license
+ * agreement governing use of this software, this software is licensed to you
+ * under the terms of the GNU General Public License version 2 (the "GPL"),
+ * available at http://www.broadcom.com/licenses/GPLv2.php, with the
+ * following added to such license:
+ *
+ * As a special exception, the copyright holders of this software give you
+ * permission to link this software with independent modules, and to copy and
+ * distribute the resulting executable under terms of your choice, provided that
+ * you also meet, for each linked independent module, the terms and conditions of
+ * the license of that module. An independent module is a module which is not
+ * derived from this software. The special exception does not apply to any
+ * modifications of the software.
+ *
+ * Notwithstanding the above, under no circumstances may you combine this
+ * software in any way with any other Broadcom software provided under a license
+ * other than the GPL, without Broadcom's express prior written consent.
+ *
+ * $Id: bcmsdh_sdmmc_linux.c,v 1.1.2.5.6.15 2010/04/14 21:11:46 Exp $
+ */
+
+#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_DEVICE_ID_BROADCOM_4325) */
+#if !defined(SDIO_DEVICE_ID_BROADCOM_4325)
+#define SDIO_DEVICE_ID_BROADCOM_4325 0x0000
+#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) */
+
+#include <bcmsdh_sdmmc.h>
+
+#include <dhd_dbg.h>
+
+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);
+
+#define DESCRIPTION "bcmsdh_sdmmc Driver"
+#define AUTHOR "Broadcom Corporation"
+
+/* 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", __FUNCTION__));
+ 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) {
+ 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", __FUNCTION__));
+ 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_probe...\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_4325) },
+ { SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329) },
+ { /* 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 = "bcmsdh_sdmmc",
+ .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", __FUNCTION__, 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", __FUNCTION__));
+ 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;
+}
+
+
+#ifdef BCMSDH_MODULE
+static int __init
+bcmsdh_module_init(void)
+{
+ int error = 0;
+ sdio_function_init();
+ return error;
+}
+
+static void __exit
+bcmsdh_module_cleanup(void)
+{
+ sdio_function_cleanup();
+}
+
+module_init(bcmsdh_module_init);
+module_exit(bcmsdh_module_cleanup);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION(DESCRIPTION);
+MODULE_AUTHOR(AUTHOR);
+
+#endif /* BCMSDH_MODULE */
+/*
+ * module init
+*/
+int sdio_function_init(void)
+{
+ int error = 0;
+ sd_trace(("bcmsdh_sdmmc: %s Enter\n", __FUNCTION__));
+
+ 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", __FUNCTION__));
+
+
+ sdio_unregister_driver(&bcmsdh_sdmmc_driver);
+
+ if (gInstance)
+ kfree(gInstance);
+}
projects / bootloader-ap.git / blobdiff