diff options
Diffstat (limited to 'drivers/staging/rtl8723bs/os_dep/sdio_intf.c')
| -rw-r--r-- | drivers/staging/rtl8723bs/os_dep/sdio_intf.c | 695 |
1 files changed, 695 insertions, 0 deletions
diff --git a/drivers/staging/rtl8723bs/os_dep/sdio_intf.c b/drivers/staging/rtl8723bs/os_dep/sdio_intf.c new file mode 100644 index 0000000..d2fb489 --- /dev/null +++ b/drivers/staging/rtl8723bs/os_dep/sdio_intf.c @@ -0,0 +1,695 @@ +/****************************************************************************** + * + * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + ******************************************************************************/ +#define _HCI_INTF_C_ + +#include <drv_types.h> +#include <rtw_debug.h> +#include <linux/jiffies.h> + +#ifndef dev_to_sdio_func +#define dev_to_sdio_func(d) container_of(d, struct sdio_func, dev) +#endif + +static const struct sdio_device_id sdio_ids[] = +{ + { SDIO_DEVICE(0x024c, 0x0523), }, + { SDIO_DEVICE(0x024c, 0x0623), }, + { SDIO_DEVICE(0x024c, 0x0626), }, + { SDIO_DEVICE(0x024c, 0xb723), }, + { /* end: all zeroes */ }, +}; +static const struct acpi_device_id acpi_ids[] = { + {"OBDA8723", 0x0000}, + {} +}; + +MODULE_DEVICE_TABLE(sdio, sdio_ids); +MODULE_DEVICE_TABLE(acpi, acpi_ids); + +static int rtw_drv_init(struct sdio_func *func, const struct sdio_device_id *id); +static void rtw_dev_remove(struct sdio_func *func); +static int rtw_sdio_resume(struct device *dev); +static int rtw_sdio_suspend(struct device *dev); + +static const struct dev_pm_ops rtw_sdio_pm_ops = { + .suspend = rtw_sdio_suspend, + .resume = rtw_sdio_resume, +}; + +struct sdio_drv_priv { + struct sdio_driver r871xs_drv; + int drv_registered; +}; + +static struct sdio_drv_priv sdio_drvpriv = { + .r871xs_drv.probe = rtw_drv_init, + .r871xs_drv.remove = rtw_dev_remove, + .r871xs_drv.name = "rtl8723bs", + .r871xs_drv.id_table = sdio_ids, + .r871xs_drv.drv = { + .pm = &rtw_sdio_pm_ops, + } +}; + +static void sd_sync_int_hdl(struct sdio_func *func) +{ + struct dvobj_priv *psdpriv; + + + psdpriv = sdio_get_drvdata(func); + + if (!psdpriv->if1) { + DBG_871X("%s if1 == NULL\n", __func__); + return; + } + + rtw_sdio_set_irq_thd(psdpriv, current); + sd_int_hdl(psdpriv->if1); + rtw_sdio_set_irq_thd(psdpriv, NULL); +} + +static int sdio_alloc_irq(struct dvobj_priv *dvobj) +{ + PSDIO_DATA psdio_data; + struct sdio_func *func; + int err; + + psdio_data = &dvobj->intf_data; + func = psdio_data->func; + + sdio_claim_host(func); + + err = sdio_claim_irq(func, &sd_sync_int_hdl); + if (err) + { + dvobj->drv_dbg.dbg_sdio_alloc_irq_error_cnt++; + printk(KERN_CRIT "%s: sdio_claim_irq FAIL(%d)!\n", __func__, err); + } + else + { + dvobj->drv_dbg.dbg_sdio_alloc_irq_cnt++; + dvobj->irq_alloc = 1; + } + + sdio_release_host(func); + + return err?_FAIL:_SUCCESS; +} + +static void sdio_free_irq(struct dvobj_priv *dvobj) +{ + PSDIO_DATA psdio_data; + struct sdio_func *func; + int err; + + if (dvobj->irq_alloc) { + psdio_data = &dvobj->intf_data; + func = psdio_data->func; + + if (func) { + sdio_claim_host(func); + err = sdio_release_irq(func); + if (err) + { + dvobj->drv_dbg.dbg_sdio_free_irq_error_cnt++; + DBG_871X_LEVEL(_drv_err_,"%s: sdio_release_irq FAIL(%d)!\n", __func__, err); + } + else + dvobj->drv_dbg.dbg_sdio_free_irq_cnt++; + sdio_release_host(func); + } + dvobj->irq_alloc = 0; + } +} + +#ifdef CONFIG_GPIO_WAKEUP +extern unsigned int oob_irq; +static irqreturn_t gpio_hostwakeup_irq_thread(int irq, void *data) +{ + struct adapter *padapter = (struct adapter *)data; + DBG_871X_LEVEL(_drv_always_, "gpio_hostwakeup_irq_thread\n"); + /* Disable interrupt before calling handler */ + /* disable_irq_nosync(oob_irq); */ + rtw_lock_suspend_timeout(HZ/2); + return IRQ_HANDLED; +} + +static u8 gpio_hostwakeup_alloc_irq(struct adapter *padapter) +{ + int err; + if (oob_irq == 0) { + DBG_871X("oob_irq ZERO!\n"); + return _FAIL; + } + /* dont set it IRQF_TRIGGER_LOW, or wowlan */ + /* power is high after suspend */ + /* and failing can prevent can not sleep issue if */ + /* wifi gpio12 pin is not linked with CPU */ + err = request_threaded_irq(oob_irq, gpio_hostwakeup_irq_thread, NULL, + /* IRQF_TRIGGER_LOW | IRQF_ONESHOT, */ + IRQF_TRIGGER_FALLING, + "rtw_wifi_gpio_wakeup", padapter); + if (err < 0) { + DBG_871X("Oops: can't allocate gpio irq %d err:%d\n", oob_irq, err); + return false; + } else { + DBG_871X("allocate gpio irq %d ok\n", oob_irq); + } + + enable_irq_wake(oob_irq); + return _SUCCESS; +} + +static void gpio_hostwakeup_free_irq(struct adapter *padapter) +{ + if (oob_irq == 0) + return; + + disable_irq_wake(oob_irq); + free_irq(oob_irq, padapter); +} +#endif + +static u32 sdio_init(struct dvobj_priv *dvobj) +{ + PSDIO_DATA psdio_data; + struct sdio_func *func; + int err; + + psdio_data = &dvobj->intf_data; + func = psdio_data->func; + + /* 3 1. init SDIO bus */ + sdio_claim_host(func); + + err = sdio_enable_func(func); + if (err) { + dvobj->drv_dbg.dbg_sdio_init_error_cnt++; + DBG_8192C(KERN_CRIT "%s: sdio_enable_func FAIL(%d)!\n", __func__, err); + goto release; + } + + err = sdio_set_block_size(func, 512); + if (err) { + dvobj->drv_dbg.dbg_sdio_init_error_cnt++; + DBG_8192C(KERN_CRIT "%s: sdio_set_block_size FAIL(%d)!\n", __func__, err); + goto release; + } + psdio_data->block_transfer_len = 512; + psdio_data->tx_block_mode = 1; + psdio_data->rx_block_mode = 1; + +release: + sdio_release_host(func); + + if (err) + return _FAIL; + return _SUCCESS; +} + +static void sdio_deinit(struct dvobj_priv *dvobj) +{ + struct sdio_func *func; + int err; + + + RT_TRACE(_module_hci_intfs_c_, _drv_notice_, ("+sdio_deinit\n")); + + func = dvobj->intf_data.func; + + if (func) { + sdio_claim_host(func); + err = sdio_disable_func(func); + if (err) + { + dvobj->drv_dbg.dbg_sdio_deinit_error_cnt++; + DBG_8192C(KERN_ERR "%s: sdio_disable_func(%d)\n", __func__, err); + } + + if (dvobj->irq_alloc) { + err = sdio_release_irq(func); + if (err) + { + dvobj->drv_dbg.dbg_sdio_free_irq_error_cnt++; + DBG_8192C(KERN_ERR "%s: sdio_release_irq(%d)\n", __func__, err); + } + else + dvobj->drv_dbg.dbg_sdio_free_irq_cnt++; + } + + sdio_release_host(func); + } +} +static struct dvobj_priv *sdio_dvobj_init(struct sdio_func *func) +{ + int status = _FAIL; + struct dvobj_priv *dvobj = NULL; + PSDIO_DATA psdio; + + dvobj = devobj_init(); + if (dvobj == NULL) { + goto exit; + } + + sdio_set_drvdata(func, dvobj); + + psdio = &dvobj->intf_data; + psdio->func = func; + + if (sdio_init(dvobj) != _SUCCESS) { + RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("%s: initialize SDIO Failed!\n", __func__)); + goto free_dvobj; + } + rtw_reset_continual_io_error(dvobj); + status = _SUCCESS; + +free_dvobj: + if (status != _SUCCESS && dvobj) { + sdio_set_drvdata(func, NULL); + + devobj_deinit(dvobj); + + dvobj = NULL; + } +exit: + return dvobj; +} + +static void sdio_dvobj_deinit(struct sdio_func *func) +{ + struct dvobj_priv *dvobj = sdio_get_drvdata(func); + + sdio_set_drvdata(func, NULL); + if (dvobj) { + sdio_deinit(dvobj); + devobj_deinit(dvobj); + } + return; +} + +void rtw_set_hal_ops(struct adapter *padapter) +{ + /* alloc memory for HAL DATA */ + rtw_hal_data_init(padapter); + + rtl8723bs_set_hal_ops(padapter); +} + +static void sd_intf_start(struct adapter *padapter) +{ + if (padapter == NULL) { + DBG_8192C(KERN_ERR "%s: padapter is NULL!\n", __func__); + return; + } + + /* hal dep */ + rtw_hal_enable_interrupt(padapter); +} + +static void sd_intf_stop(struct adapter *padapter) +{ + if (padapter == NULL) { + DBG_8192C(KERN_ERR "%s: padapter is NULL!\n", __func__); + return; + } + + /* hal dep */ + rtw_hal_disable_interrupt(padapter); +} + + +static struct adapter *rtw_sdio_if1_init(struct dvobj_priv *dvobj, const struct sdio_device_id *pdid) +{ + int status = _FAIL; + struct net_device *pnetdev; + struct adapter *padapter = NULL; + PSDIO_DATA psdio = &dvobj->intf_data; + + padapter = (struct adapter *)vzalloc(sizeof(*padapter)); + if (padapter == NULL) { + goto exit; + } + + padapter->dvobj = dvobj; + dvobj->if1 = padapter; + + padapter->bDriverStopped =true; + + dvobj->padapters = padapter; + padapter->iface_id = 0; + + /* 3 1. init network device data */ + pnetdev = rtw_init_netdev(padapter); + if (!pnetdev) + goto free_adapter; + + SET_NETDEV_DEV(pnetdev, dvobj_to_dev(dvobj)); + + padapter = rtw_netdev_priv(pnetdev); + + rtw_wdev_alloc(padapter, dvobj_to_dev(dvobj)); + + /* 3 3. init driver special setting, interface, OS and hardware relative */ + + /* 4 3.1 set hardware operation functions */ + rtw_set_hal_ops(padapter); + + + /* 3 5. initialize Chip version */ + padapter->intf_start = &sd_intf_start; + padapter->intf_stop = &sd_intf_stop; + + padapter->intf_init = &sdio_init; + padapter->intf_deinit = &sdio_deinit; + padapter->intf_alloc_irq = &sdio_alloc_irq; + padapter->intf_free_irq = &sdio_free_irq; + + if (rtw_init_io_priv(padapter, sdio_set_intf_ops) == _FAIL) + { + RT_TRACE(_module_hci_intfs_c_, _drv_err_, + ("rtw_drv_init: Can't init io_priv\n")); + goto free_hal_data; + } + + rtw_hal_read_chip_version(padapter); + + rtw_hal_chip_configure(padapter); + + rtw_btcoex_Initialize(padapter); + + /* 3 6. read efuse/eeprom data */ + rtw_hal_read_chip_info(padapter); + + /* 3 7. init driver common data */ + if (rtw_init_drv_sw(padapter) == _FAIL) { + RT_TRACE(_module_hci_intfs_c_, _drv_err_, + ("rtw_drv_init: Initialize driver software resource Failed!\n")); + goto free_hal_data; + } + + /* 3 8. get WLan MAC address */ + /* set mac addr */ + rtw_macaddr_cfg(&psdio->func->dev, padapter->eeprompriv.mac_addr); + + rtw_hal_disable_interrupt(padapter); + + DBG_871X("bDriverStopped:%d, bSurpriseRemoved:%d, bup:%d, hw_init_completed:%d\n" + , padapter->bDriverStopped + , padapter->bSurpriseRemoved + , padapter->bup + , padapter->hw_init_completed + ); + + status = _SUCCESS; + +free_hal_data: + if (status != _SUCCESS && padapter->HalData) + kfree(padapter->HalData); + + if (status != _SUCCESS) { + rtw_wdev_unregister(padapter->rtw_wdev); + rtw_wdev_free(padapter->rtw_wdev); + } + +free_adapter: + if (status != _SUCCESS) { + if (pnetdev) + rtw_free_netdev(pnetdev); + else + vfree((u8 *)padapter); + padapter = NULL; + } +exit: + return padapter; +} + +static void rtw_sdio_if1_deinit(struct adapter *if1) +{ + struct net_device *pnetdev = if1->pnetdev; + struct mlme_priv *pmlmepriv = &if1->mlmepriv; + + if (check_fwstate(pmlmepriv, _FW_LINKED)) + rtw_disassoc_cmd(if1, 0, false); + + free_mlme_ap_info(if1); + +#ifdef CONFIG_GPIO_WAKEUP + gpio_hostwakeup_free_irq(if1); +#endif + + rtw_cancel_all_timer(if1); + +#ifdef CONFIG_WOWLAN + adapter_to_pwrctl(if1)->wowlan_mode =false; + DBG_871X_LEVEL(_drv_always_, "%s wowlan_mode:%d\n", __func__, adapter_to_pwrctl(if1)->wowlan_mode); +#endif /* CONFIG_WOWLAN */ + + rtw_dev_unload(if1); + DBG_871X("+r871xu_dev_remove, hw_init_completed =%d\n", if1->hw_init_completed); + + if (if1->rtw_wdev) { + rtw_wdev_free(if1->rtw_wdev); + } + + rtw_free_drv_sw(if1); + + if (pnetdev) + rtw_free_netdev(pnetdev); +} + +/* + * drv_init() - a device potentially for us + * + * notes: drv_init() is called when the bus driver has located a card for us to support. + * We accept the new device by returning 0. + */ +static int rtw_drv_init( + struct sdio_func *func, + const struct sdio_device_id *id) +{ + int status = _FAIL; + struct adapter *if1 = NULL, *if2 = NULL; + struct dvobj_priv *dvobj; + + dvobj = sdio_dvobj_init(func); + if (dvobj == NULL) { + RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("initialize device object priv Failed!\n")); + goto exit; + } + + if1 = rtw_sdio_if1_init(dvobj, id); + if (if1 == NULL) { + DBG_871X("rtw_init_primarystruct adapter Failed!\n"); + goto free_dvobj; + } + + /* dev_alloc_name && register_netdev */ + status = rtw_drv_register_netdev(if1); + if (status != _SUCCESS) { + goto free_if2; + } + + if (sdio_alloc_irq(dvobj) != _SUCCESS) + goto free_if2; + +#ifdef CONFIG_GPIO_WAKEUP + gpio_hostwakeup_alloc_irq(if1); +#endif + + RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("-871x_drv - drv_init, success!\n")); + + rtw_ndev_notifier_register(); + status = _SUCCESS; + +free_if2: + if (status != _SUCCESS && if2) { + } + if (status != _SUCCESS && if1) { + rtw_sdio_if1_deinit(if1); + } +free_dvobj: + if (status != _SUCCESS) + sdio_dvobj_deinit(func); +exit: + return status == _SUCCESS?0:-ENODEV; +} + +static void rtw_dev_remove(struct sdio_func *func) +{ + struct dvobj_priv *dvobj = sdio_get_drvdata(func); + struct adapter *padapter = dvobj->if1; + + RT_TRACE(_module_hci_intfs_c_, _drv_notice_, ("+rtw_dev_remove\n")); + + dvobj->processing_dev_remove = true; + + rtw_unregister_netdevs(dvobj); + + if (padapter->bSurpriseRemoved == false) { + int err; + + /* test surprise remove */ + sdio_claim_host(func); + sdio_readb(func, 0, &err); + sdio_release_host(func); + if (err == -ENOMEDIUM) { + padapter->bSurpriseRemoved = true; + DBG_871X(KERN_NOTICE "%s: device had been removed!\n", __func__); + } + } + + rtw_ps_deny(padapter, PS_DENY_DRV_REMOVE); + + rtw_pm_set_ips(padapter, IPS_NONE); + rtw_pm_set_lps(padapter, PS_MODE_ACTIVE); + + LeaveAllPowerSaveMode(padapter); + + rtw_btcoex_HaltNotify(padapter); + + rtw_sdio_if1_deinit(padapter); + + sdio_dvobj_deinit(func); + + RT_TRACE(_module_hci_intfs_c_, _drv_notice_, ("-rtw_dev_remove\n")); +} + +extern int pm_netdev_open(struct net_device *pnetdev, u8 bnormal); +extern int pm_netdev_close(struct net_device *pnetdev, u8 bnormal); + +static int rtw_sdio_suspend(struct device *dev) +{ + struct sdio_func *func =dev_to_sdio_func(dev); + struct dvobj_priv *psdpriv = sdio_get_drvdata(func); + struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(psdpriv); + struct adapter *padapter = psdpriv->if1; + struct debug_priv *pdbgpriv = &psdpriv->drv_dbg; + + if (padapter->bDriverStopped == true) + { + DBG_871X("%s bDriverStopped = %d\n", __func__, padapter->bDriverStopped); + return 0; + } + + if (pwrpriv->bInSuspend == true) + { + DBG_871X("%s bInSuspend = %d\n", __func__, pwrpriv->bInSuspend); + pdbgpriv->dbg_suspend_error_cnt++; + return 0; + } + + return rtw_suspend_common(padapter); +} + +static int rtw_resume_process(struct adapter *padapter) +{ + struct pwrctrl_priv *pwrpriv = adapter_to_pwrctl(padapter); + struct dvobj_priv *psdpriv = padapter->dvobj; + struct debug_priv *pdbgpriv = &psdpriv->drv_dbg; + + if (pwrpriv->bInSuspend == false) + { + pdbgpriv->dbg_resume_error_cnt++; + DBG_871X("%s bInSuspend = %d\n", __func__, pwrpriv->bInSuspend); + return -1; + } + + return rtw_resume_common(padapter); +} + +static int rtw_sdio_resume(struct device *dev) +{ + struct sdio_func *func =dev_to_sdio_func(dev); + struct dvobj_priv *psdpriv = sdio_get_drvdata(func); + struct pwrctrl_priv *pwrpriv = dvobj_to_pwrctl(psdpriv); + struct adapter *padapter = psdpriv->if1; + struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; + int ret = 0; + struct debug_priv *pdbgpriv = &psdpriv->drv_dbg; + + DBG_871X("==> %s (%s:%d)\n", __func__, current->comm, current->pid); + + pdbgpriv->dbg_resume_cnt++; + + if (pwrpriv->bInternalAutoSuspend) + { + ret = rtw_resume_process(padapter); + } + else + { + if (pwrpriv->wowlan_mode || pwrpriv->wowlan_ap_mode) + { + ret = rtw_resume_process(padapter); + } + else + { + ret = rtw_resume_process(padapter); + } + } + pmlmeext->last_scan_time = jiffies; + DBG_871X("<======== %s return %d\n", __func__, ret); + return ret; + +} + +static int __init rtw_drv_entry(void) +{ + int ret = 0; + + DBG_871X_LEVEL(_drv_always_, "module init start\n"); + dump_drv_version(RTW_DBGDUMP); +#ifdef BTCOEXVERSION + DBG_871X_LEVEL(_drv_always_, "rtl8723bs BT-Coex version = %s\n", BTCOEXVERSION); +#endif /* BTCOEXVERSION */ + + sdio_drvpriv.drv_registered = true; + rtw_drv_proc_init(); + + ret = sdio_register_driver(&sdio_drvpriv.r871xs_drv); + if (ret != 0) + { + sdio_drvpriv.drv_registered = false; + rtw_drv_proc_deinit(); + rtw_ndev_notifier_unregister(); + DBG_871X("%s: register driver failed!!(%d)\n", __func__, ret); + goto exit; + } + + goto exit; + +exit: + DBG_871X_LEVEL(_drv_always_, "module init ret =%d\n", ret); + return ret; +} + +static void __exit rtw_drv_halt(void) +{ + DBG_871X_LEVEL(_drv_always_, "module exit start\n"); + + sdio_drvpriv.drv_registered = false; + + sdio_unregister_driver(&sdio_drvpriv.r871xs_drv); + + rtw_drv_proc_deinit(); + rtw_ndev_notifier_unregister(); + + DBG_871X_LEVEL(_drv_always_, "module exit success\n"); + + rtw_mstat_dump(RTW_DBGDUMP); +} + + +module_init(rtw_drv_entry); +module_exit(rtw_drv_halt); |
