diff options
Diffstat (limited to 'drivers/net/wireless/bcmdhd_1363/bcmsdh_sdmmc_linux.c')
| -rw-r--r-- | drivers/net/wireless/bcmdhd_1363/bcmsdh_sdmmc_linux.c | 409 |
1 files changed, 409 insertions, 0 deletions
diff --git a/drivers/net/wireless/bcmdhd_1363/bcmsdh_sdmmc_linux.c b/drivers/net/wireless/bcmdhd_1363/bcmsdh_sdmmc_linux.c new file mode 100644 index 000000000000..1e91196c205d --- /dev/null +++ b/drivers/net/wireless/bcmdhd_1363/bcmsdh_sdmmc_linux.c @@ -0,0 +1,409 @@ +/* + * BCMSDH Function Driver for the native SDIO/MMC driver in the Linux Kernel + * + * Copyright (C) 1999-2017, 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. + * + * + * <<Broadcom-WL-IPTag/Proprietary,Open:>> + * + * $Id: bcmsdh_sdmmc_linux.c 662764 2016-11-10 09:38:01Z $ + */ + +#include <typedefs.h> +#include <bcmutils.h> +#include <sdio.h> /* SDIO Device and Protocol 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/host.h> +#include <linux/mmc/sdio_func.h> +#include <linux/mmc/sdio_ids.h> +#include <dhd_linux.h> +#include <bcmsdh_sdmmc.h> +#include <dhd_dbg.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_4319) */ +#if !defined(SDIO_DEVICE_ID_BROADCOM_4330) +#define SDIO_DEVICE_ID_BROADCOM_4330 0x4330 +#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4330) */ +#if !defined(SDIO_DEVICE_ID_BROADCOM_4334) +#define SDIO_DEVICE_ID_BROADCOM_4334 0x4334 +#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4334) */ +#if !defined(SDIO_DEVICE_ID_BROADCOM_4324) +#define SDIO_DEVICE_ID_BROADCOM_4324 0x4324 +#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4324) */ +#if !defined(SDIO_DEVICE_ID_BROADCOM_43239) +#define SDIO_DEVICE_ID_BROADCOM_43239 43239 +#endif /* !defined(SDIO_DEVICE_ID_BROADCOM_43239) */ + +extern void wl_cfg80211_set_parent_dev(void *dev); +extern void sdioh_sdmmc_devintr_off(sdioh_info_t *sd); +extern void sdioh_sdmmc_devintr_on(sdioh_info_t *sd); +extern void* bcmsdh_probe(osl_t *osh, void *dev, void *sdioh, void *adapter_info, uint bus_type, + uint bus_num, uint slot_num); +extern int bcmsdh_remove(bcmsdh_info_t *bcmsdh); + +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"); + +/* Maximum number of bcmsdh_sdmmc devices supported by driver */ +#define BCMSDH_SDMMC_MAX_DEVICES 1 + +extern volatile bool dhd_mmc_suspend; + +static int sdioh_probe(struct sdio_func *func) +{ + int host_idx = func->card->host->index; + uint32 rca = func->card->rca; + wifi_adapter_info_t *adapter; + osl_t *osh = NULL; + sdioh_info_t *sdioh = NULL; + + sd_err(("bus num (host idx)=%d, slot num (rca)=%d\n", host_idx, rca)); + adapter = dhd_wifi_platform_get_adapter(SDIO_BUS, host_idx, rca); + if (adapter != NULL) + sd_err(("found adapter info '%s'\n", adapter->name)); + else + sd_err(("can't find adapter info for this chip\n")); + +#ifdef WL_CFG80211 + wl_cfg80211_set_parent_dev(&func->dev); +#endif + + /* allocate SDIO Host Controller state info */ + osh = osl_attach(&func->dev, SDIO_BUS, TRUE); + if (osh == NULL) { + sd_err(("%s: osl_attach failed\n", __FUNCTION__)); + goto fail; + } + osl_static_mem_init(osh, adapter); + sdioh = sdioh_attach(osh, func); + if (sdioh == NULL) { + sd_err(("%s: sdioh_attach failed\n", __FUNCTION__)); + goto fail; + } + sdioh->bcmsdh = bcmsdh_probe(osh, &func->dev, sdioh, adapter, SDIO_BUS, host_idx, rca); + if (sdioh->bcmsdh == NULL) { + sd_err(("%s: bcmsdh_probe failed\n", __FUNCTION__)); + goto fail; + } + + sdio_set_drvdata(func, sdioh); + return 0; + +fail: + if (sdioh != NULL) + sdioh_detach(osh, sdioh); + if (osh != NULL) + osl_detach(osh); + return -ENOMEM; +} + +static void sdioh_remove(struct sdio_func *func) +{ + sdioh_info_t *sdioh; + osl_t *osh; + + sdioh = sdio_get_drvdata(func); + if (sdioh == NULL) { + sd_err(("%s: error, no sdioh handler found\n", __FUNCTION__)); + return; + } + + osh = sdioh->osh; + bcmsdh_remove(sdioh->bcmsdh); + sdioh_detach(osh, sdioh); + osl_detach(osh); +} + +static int bcmsdh_sdmmc_probe(struct sdio_func *func, + const struct sdio_device_id *id) +{ + int ret = 0; + + if (func == NULL) + return -EINVAL; + + sd_err(("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)); + + /* 4318 doesn't have function 2 */ + if ((func->num == 2) || (func->num == 1 && func->device == 0x4)) + ret = sdioh_probe(func); + + return ret; +} + +static void bcmsdh_sdmmc_remove(struct sdio_func *func) +{ + if (func == NULL) { + sd_err(("%s is called with NULL SDIO function pointer\n", __FUNCTION__)); + return; + } + + 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) || (func->num == 1 && func->device == 0x4)) + sdioh_remove(func); +} + +/* 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) }, + { SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330) }, + { SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4334) }, + { SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4324) }, + { SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_43239) }, + { SDIO_DEVICE_CLASS(SDIO_CLASS_NONE) }, + { /* end: all zeroes */ }, +}; + +MODULE_DEVICE_TABLE(sdio, bcmsdh_sdmmc_ids); + +#ifdef OOB_PARAM +uint +sdioh_get_oob_disable(sdioh_info_t *sd) +{ + int host_idx = sd->func[0]->card->host->index; + uint32 rca = sd->func[0]->card->rca; + wifi_adapter_info_t *adapter; + + adapter = dhd_wifi_platform_get_adapter(SDIO_BUS, host_idx, rca); + + return adapter->oob_disable; +} +#endif /* OOB_PARAM */ + +#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39)) && defined(CONFIG_PM) +static int bcmsdh_sdmmc_suspend(struct device *pdev) +{ + int err; + sdioh_info_t *sdioh; + struct sdio_func *func = dev_to_sdio_func(pdev); + mmc_pm_flag_t sdio_flags; + + sd_err(("%s Enter\n", __FUNCTION__)); + if (func->num != 2) + return 0; + + dhd_mmc_suspend = TRUE; + sdioh = sdio_get_drvdata(func); + err = bcmsdh_suspend(sdioh->bcmsdh); + if (err) { + dhd_mmc_suspend = FALSE; + return err; + } + + sdio_flags = sdio_get_host_pm_caps(func); + if (!(sdio_flags & MMC_PM_KEEP_POWER)) { + sd_err(("%s: can't keep power while host is suspended\n", __FUNCTION__)); + dhd_mmc_suspend = FALSE; + return -EINVAL; + } + + /* keep power while host suspended */ + err = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); + if (err) { + sd_err(("%s: error while trying to keep power\n", __FUNCTION__)); + dhd_mmc_suspend = FALSE; + return err; + } +#if defined(OOB_INTR_ONLY) + OOB_PARAM_IF(!(sdioh_get_oob_disable(sdioh))) { + bcmsdh_oob_intr_set(sdioh->bcmsdh, FALSE); + } +#endif + smp_mb(); + + return 0; +} + +static int bcmsdh_sdmmc_resume(struct device *pdev) +{ + struct sdio_func *func = dev_to_sdio_func(pdev); + sdioh_info_t *sdioh; + + + sd_err(("%s Enter\n", __FUNCTION__)); + if (func->num != 2) + return 0; + + dhd_mmc_suspend = FALSE; + sdioh = sdio_get_drvdata(func); + bcmsdh_resume(sdioh->bcmsdh); + + smp_mb(); + return 0; +} + +static const struct dev_pm_ops bcmsdh_sdmmc_pm_ops = { + .suspend = bcmsdh_sdmmc_suspend, + .resume = bcmsdh_sdmmc_resume, +}; +#endif /* (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39)) && defined(CONFIG_PM) */ + +#if defined(BCMLXSDMMC) +static struct semaphore *notify_semaphore = NULL; + +static int dummy_probe(struct sdio_func *func, + const struct sdio_device_id *id) +{ + if (func && (func->num != 2)) { + return 0; + } + + if (notify_semaphore) + up(notify_semaphore); + return 0; +} + +static void dummy_remove(struct sdio_func *func) +{ +} + +static struct sdio_driver dummy_sdmmc_driver = { + .probe = dummy_probe, + .remove = dummy_remove, + .name = "dummy_sdmmc", + .id_table = bcmsdh_sdmmc_ids, + }; + +int sdio_func_reg_notify(void* semaphore) +{ + notify_semaphore = semaphore; + return sdio_register_driver(&dummy_sdmmc_driver); +} + +void sdio_func_unreg_notify(void) +{ + OSL_SLEEP(15); + sdio_unregister_driver(&dummy_sdmmc_driver); +} + +#endif /* defined(BCMLXSDMMC) */ + +static struct sdio_driver bcmsdh_sdmmc_driver = { + .probe = bcmsdh_sdmmc_probe, + .remove = bcmsdh_sdmmc_remove, + .name = "bcmsdh_sdmmc", + .id_table = bcmsdh_sdmmc_ids, +#if (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39)) && defined(CONFIG_PM) + .drv = { + .pm = &bcmsdh_sdmmc_pm_ops, + }, +#endif /* (LINUX_VERSION_CODE > KERNEL_VERSION(2, 6, 39)) && defined(CONFIG_PM) */ + }; + +struct sdos_info { + sdioh_info_t *sd; + spinlock_t lock; +}; + +/* Interrupt enable/disable */ +SDIOH_API_RC +sdioh_interrupt_set(sdioh_info_t *sd, bool enable) +{ + if (!sd) + return BCME_BADARG; + + sd_trace(("%s: %s\n", __FUNCTION__, enable ? "Enabling" : "Disabling")); + return SDIOH_API_RC_SUCCESS; +} + +#ifdef BCMSDH_MODULE +static int __init +bcmsdh_module_init(void) +{ + int error = 0; + error = 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 bcmsdh_register_client_driver(void) +{ + return sdio_register_driver(&bcmsdh_sdmmc_driver); +} + +/* + * module cleanup +*/ +void bcmsdh_unregister_client_driver(void) +{ + sdio_unregister_driver(&bcmsdh_sdmmc_driver); +} |