| /* |
| * 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); |
| } |