262 lines
6.7 KiB
C
262 lines
6.7 KiB
C
/*
|
|
* 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);
|
|
}
|