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android_kernel_cmhtcleo/drivers/net/wireless/bcm4329/bcmsdh_sdmmc_linux.c

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/*
* 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 1.1.2.5.6.17 2010/08/13 00:36:19 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_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>
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_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 = "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);
}
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