diff options
Diffstat (limited to 'drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc_linux.c')
| -rw-r--r-- | drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc_linux.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc_linux.c b/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc_linux.c new file mode 100644 index 0000000..ae7b566 --- /dev/null +++ b/drivers/staging/brcm80211/brcmfmac/bcmsdh_sdmmc_linux.c @@ -0,0 +1,231 @@ +/* + * Copyright (c) 2010 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ +#include <linux/types.h> +#include <linux/sched.h> /* request_irq() */ +#include <bcmdefs.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/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> +#include <wl_cfg80211.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); + +/* module param defaults */ +static int clockoverride; + +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", __func__)); + 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) { + wl_cfg80211_sdio_func(func); + 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", __func__)); + 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 = "brcmfmac", + .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 = kmalloc(sizeof(struct sdos_info), GFP_ATOMIC); + 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; + kfree(sdos); +} + +/* Interrupt enable/disable */ +SDIOH_API_RC sdioh_interrupt_set(sdioh_info_t *sd, bool enable) +{ + unsigned long flags; + struct sdos_info *sdos; + + sd_trace(("%s: %s\n", __func__, 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", + __func__)); + 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; +} + +/* + * module init +*/ +int sdio_function_init(void) +{ + int error = 0; + sd_trace(("bcmsdh_sdmmc: %s Enter\n", __func__)); + + 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", __func__)); + + sdio_unregister_driver(&bcmsdh_sdmmc_driver); + + kfree(gInstance); +} |
