1654 lines
43 KiB
C
Executable File
1654 lines
43 KiB
C
Executable File
/*
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* Linux DHD Bus Module for PCIE
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*
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* Copyright (C) 1999-2016, Broadcom Corporation
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed to you
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* under the terms of the GNU General Public License version 2 (the "GPL"),
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* available at http://www.broadcom.com/licenses/GPLv2.php, with the
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* following added to such license:
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*
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* As a special exception, the copyright holders of this software give you
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* permission to link this software with independent modules, and to copy and
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* distribute the resulting executable under terms of your choice, provided that
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* you also meet, for each linked independent module, the terms and conditions of
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* the license of that module. An independent module is a module which is not
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* derived from this software. The special exception does not apply to any
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* modifications of the software.
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*
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* Notwithstanding the above, under no circumstances may you combine this
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* software in any way with any other Broadcom software provided under a license
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* other than the GPL, without Broadcom's express prior written consent.
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*
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*
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* <<Broadcom-WL-IPTag/Open:>>
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*
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* $Id: dhd_pcie_linux.c 610267 2016-01-06 16:03:53Z $
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*/
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/* include files */
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#include <typedefs.h>
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#include <bcmutils.h>
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#include <bcmdevs.h>
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#include <siutils.h>
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#include <hndsoc.h>
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#include <hndpmu.h>
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#include <sbchipc.h>
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#if defined(DHD_DEBUG)
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#include <hnd_armtrap.h>
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#include <hnd_cons.h>
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#endif /* defined(DHD_DEBUG) */
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#include <dngl_stats.h>
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#include <pcie_core.h>
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#include <dhd.h>
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#include <dhd_bus.h>
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#include <dhd_proto.h>
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#include <dhd_dbg.h>
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#include <dhdioctl.h>
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#include <bcmmsgbuf.h>
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#include <pcicfg.h>
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#include <dhd_pcie.h>
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#include <dhd_linux.h>
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#ifdef CONFIG_ARCH_MSM
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#ifdef CONFIG_PCI_MSM
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#include <linux/msm_pcie.h>
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#else
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#include <mach/msm_pcie.h>
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#endif /* CONFIG_PCI_MSM */
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#endif /* CONFIG_ARCH_MSM */
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#define PCI_CFG_RETRY 10
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#define OS_HANDLE_MAGIC 0x1234abcd /* Magic # to recognize osh */
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#define BCM_MEM_FILENAME_LEN 24 /* Mem. filename length */
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#define OSL_PKTTAG_CLEAR(p) \
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do { \
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struct sk_buff *s = (struct sk_buff *)(p); \
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ASSERT(OSL_PKTTAG_SZ == 32); \
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*(uint32 *)(&s->cb[0]) = 0; *(uint32 *)(&s->cb[4]) = 0; \
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*(uint32 *)(&s->cb[8]) = 0; *(uint32 *)(&s->cb[12]) = 0; \
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*(uint32 *)(&s->cb[16]) = 0; *(uint32 *)(&s->cb[20]) = 0; \
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*(uint32 *)(&s->cb[24]) = 0; *(uint32 *)(&s->cb[28]) = 0; \
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} while (0)
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/* user defined data structures */
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typedef struct dhd_pc_res {
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uint32 bar0_size;
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void* bar0_addr;
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uint32 bar1_size;
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void* bar1_addr;
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} pci_config_res, *pPci_config_res;
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typedef bool (*dhdpcie_cb_fn_t)(void *);
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typedef struct dhdpcie_info
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{
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dhd_bus_t *bus;
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osl_t *osh;
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struct pci_dev *dev; /* pci device handle */
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volatile char *regs; /* pci device memory va */
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volatile char *tcm; /* pci device memory va */
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uint32 tcm_size; /* pci device memory size */
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struct pcos_info *pcos_info;
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uint16 last_intrstatus; /* to cache intrstatus */
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int irq;
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char pciname[32];
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struct pci_saved_state* default_state;
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struct pci_saved_state* state;
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#ifdef BCMPCIE_OOB_HOST_WAKE
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void *os_cxt; /* Pointer to per-OS private data */
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#endif /* BCMPCIE_OOB_HOST_WAKE */
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} dhdpcie_info_t;
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struct pcos_info {
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dhdpcie_info_t *pc;
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spinlock_t lock;
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wait_queue_head_t intr_wait_queue;
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struct timer_list tuning_timer;
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int tuning_timer_exp;
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atomic_t timer_enab;
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struct tasklet_struct tuning_tasklet;
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};
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#ifdef BCMPCIE_OOB_HOST_WAKE
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typedef struct dhdpcie_os_info {
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int oob_irq_num; /* valid when hardware or software oob in use */
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unsigned long oob_irq_flags; /* valid when hardware or software oob in use */
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bool oob_irq_registered;
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bool oob_irq_enabled;
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bool oob_irq_wake_enabled;
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spinlock_t oob_irq_spinlock;
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void *dev; /* handle to the underlying device */
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} dhdpcie_os_info_t;
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#endif /* BCMPCIE_OOB_HOST_WAKE */
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/* function declarations */
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static int __devinit
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dhdpcie_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
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static void __devexit
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dhdpcie_pci_remove(struct pci_dev *pdev);
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static int dhdpcie_init(struct pci_dev *pdev);
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static irqreturn_t dhdpcie_isr(int irq, void *arg);
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/* OS Routine functions for PCI suspend/resume */
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#if defined(MULTIPLE_SUPPLICANT)
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
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DEFINE_MUTEX(_dhd_sdio_mutex_lock_);
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#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) */
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#endif
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static int dhdpcie_set_suspend_resume(struct pci_dev *dev, bool state);
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static int dhdpcie_resume_host_dev(dhd_bus_t *bus);
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static int dhdpcie_suspend_host_dev(dhd_bus_t *bus);
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static int dhdpcie_resume_dev(struct pci_dev *dev);
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static int dhdpcie_suspend_dev(struct pci_dev *dev);
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#ifdef DHD_PCIE_RUNTIMEPM
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static int dhdpcie_pm_suspend(struct device *dev);
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static int dhdpcie_pm_prepare(struct device *dev);
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static int dhdpcie_pm_resume(struct device *dev);
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static void dhdpcie_pm_complete(struct device *dev);
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#else
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static int dhdpcie_pci_suspend(struct pci_dev *dev, pm_message_t state);
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static int dhdpcie_pci_resume(struct pci_dev *dev);
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#endif /* DHD_PCIE_RUNTIMEPM */
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static struct pci_device_id dhdpcie_pci_devid[] __devinitdata = {
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{ vendor: 0x14e4,
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device: PCI_ANY_ID,
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subvendor: PCI_ANY_ID,
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subdevice: PCI_ANY_ID,
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class: PCI_CLASS_NETWORK_OTHER << 8,
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class_mask: 0xffff00,
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driver_data: 0,
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},
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{ 0, }
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};
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MODULE_DEVICE_TABLE(pci, dhdpcie_pci_devid);
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/* Power Management Hooks */
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#ifdef DHD_PCIE_RUNTIMEPM
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static const struct dev_pm_ops dhd_pcie_pm_ops = {
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.prepare = dhdpcie_pm_prepare,
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.suspend = dhdpcie_pm_suspend,
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.resume = dhdpcie_pm_resume,
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.complete = dhdpcie_pm_complete,
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};
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#endif /* DHD_PCIE_RUNTIMEPM */
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static struct pci_driver dhdpcie_driver = {
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node: {},
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name: "pcieh",
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id_table: dhdpcie_pci_devid,
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probe: dhdpcie_pci_probe,
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remove: dhdpcie_pci_remove,
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0))
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save_state: NULL,
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#endif
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#ifdef DHD_PCIE_RUNTIMEPM
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.driver.pm = &dhd_pcie_pm_ops,
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#else
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suspend: dhdpcie_pci_suspend,
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resume: dhdpcie_pci_resume,
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#endif /* DHD_PCIE_RUNTIMEPM */
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};
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int dhdpcie_init_succeeded = FALSE;
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#ifdef DHD_PCIE_RUNTIMEPM
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static int dhdpcie_pm_suspend(struct device *dev)
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{
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struct pci_dev *pdev = to_pci_dev(dev);
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return dhdpcie_set_suspend_resume(pdev, TRUE);
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}
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static int dhdpcie_pm_prepare(struct device *dev)
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{
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struct pci_dev *pdev = to_pci_dev(dev);
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dhdpcie_info_t *pch = pci_get_drvdata(pdev);
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dhd_bus_t *bus = NULL;
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if (pch) {
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bus = pch->bus;
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DHD_DISABLE_RUNTIME_PM(bus->dhd);
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}
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return 0;
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}
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static int dhdpcie_pm_resume(struct device *dev)
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{
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struct pci_dev *pdev = to_pci_dev(dev);
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return dhdpcie_set_suspend_resume(pdev, FALSE);
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}
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static void dhdpcie_pm_complete(struct device *dev)
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{
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struct pci_dev *pdev = to_pci_dev(dev);
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dhdpcie_info_t *pch = pci_get_drvdata(pdev);
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dhd_bus_t *bus = NULL;
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if (pch) {
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bus = pch->bus;
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DHD_ENABLE_RUNTIME_PM(bus->dhd);
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}
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return;
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}
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#else
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static int dhdpcie_pci_suspend(struct pci_dev * pdev, pm_message_t state)
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{
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BCM_REFERENCE(state);
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return dhdpcie_set_suspend_resume(pdev, TRUE);
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}
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static int dhdpcie_pci_resume(struct pci_dev *pdev)
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{
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return dhdpcie_set_suspend_resume(pdev, FALSE);
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}
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#endif /* DHD_PCIE_RUNTIMEPM */
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static int dhdpcie_set_suspend_resume(struct pci_dev *pdev, bool state)
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{
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int ret = 0;
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dhdpcie_info_t *pch = pci_get_drvdata(pdev);
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dhd_bus_t *bus = NULL;
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if (pch) {
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bus = pch->bus;
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}
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#ifdef DHD_PCIE_RUNTIMEPM
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if (bus && !bus->dhd->dongle_reset) {
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/* if wakelock is held during suspend, return failed */
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if (state == TRUE && dhd_os_check_wakelock_all(bus->dhd)) {
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return -EBUSY;
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}
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mutex_lock(&bus->pm_lock);
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}
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#endif /* DHD_PCIE_RUNTIMEPM */
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/* When firmware is not loaded do the PCI bus */
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/* suspend/resume only */
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if (bus && (bus->dhd->busstate == DHD_BUS_DOWN) &&
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!bus->dhd->dongle_reset) {
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ret = dhdpcie_pci_suspend_resume(bus, state);
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#ifdef DHD_PCIE_RUNTIMEPM
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mutex_unlock(&bus->pm_lock);
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#endif /* DHD_PCIE_RUNTIMEPM */
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return ret;
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}
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if (bus && ((bus->dhd->busstate == DHD_BUS_SUSPEND)||
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(bus->dhd->busstate == DHD_BUS_DATA)) &&
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(bus->suspended != state)) {
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ret = dhdpcie_bus_suspend(bus, state);
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}
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#ifdef DHD_PCIE_RUNTIMEPM
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if (bus && !bus->dhd->dongle_reset) {
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mutex_unlock(&bus->pm_lock);
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}
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#endif /* DHD_PCIE_RUNTIMEPM */
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return ret;
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}
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static int dhdpcie_suspend_dev(struct pci_dev *dev)
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{
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int ret;
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
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dhdpcie_info_t *pch = pci_get_drvdata(dev);
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dhd_bus_t *bus = pch->bus;
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if (bus->is_linkdown) {
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DHD_ERROR(("%s: PCIe link is down\n", __FUNCTION__));
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return BCME_ERROR;
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}
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#endif /* OEM_ANDROID && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */
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DHD_TRACE_HW4(("%s: Enter\n", __FUNCTION__));
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
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bus->pci_d3hot_done = 1;
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#endif /* OEM_ANDROID && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */
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pci_save_state(dev);
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
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pch->state = pci_store_saved_state(dev);
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#endif /* OEM_ANDROID && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */
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pci_enable_wake(dev, PCI_D0, TRUE);
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if (pci_is_enabled(dev)) {
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pci_disable_device(dev);
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}
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ret = pci_set_power_state(dev, PCI_D3hot);
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if (ret) {
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DHD_ERROR(("%s: pci_set_power_state error %d\n",
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__FUNCTION__, ret));
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}
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disable_irq(dev->irq);
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return ret;
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}
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static int dhdpcie_resume_dev(struct pci_dev *dev)
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{
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int err = 0;
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
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dhdpcie_info_t *pch = pci_get_drvdata(dev);
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dhd_bus_t *bus = pch->bus;
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pci_load_and_free_saved_state(dev, &pch->state);
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#endif /* OEM_ANDROID && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */
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DHD_TRACE_HW4(("%s: Enter\n", __FUNCTION__));
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
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bus->pci_d3hot_done = 0;
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#endif /* OEM_ANDROID && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */
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pci_restore_state(dev);
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err = pci_enable_device(dev);
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if (err) {
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printf("%s:pci_enable_device error %d \n", __FUNCTION__, err);
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goto out;
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}
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pci_set_master(dev);
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err = pci_set_power_state(dev, PCI_D0);
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if (err) {
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printf("%s:pci_set_power_state error %d \n", __FUNCTION__, err);
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goto out;
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}
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out:
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enable_irq(dev->irq);
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return err;
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}
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static int dhdpcie_resume_host_dev(dhd_bus_t *bus)
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{
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int bcmerror = 0;
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#ifdef USE_EXYNOS_PCIE_RC_PMPATCH
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bcmerror = exynos_pcie_pm_resume(SAMSUNG_PCIE_CH_NUM);
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#endif /* USE_EXYNOS_PCIE_RC_PMPATCH */
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#ifdef CONFIG_ARCH_MSM
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bcmerror = dhdpcie_start_host_pcieclock(bus);
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#endif /* CONFIG_ARCH_MSM */
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if (bcmerror < 0) {
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DHD_ERROR(("%s: PCIe RC resume failed!!! (%d)\n",
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__FUNCTION__, bcmerror));
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bus->is_linkdown = 1;
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#ifdef CONFIG_ARCH_MSM
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bus->no_cfg_restore = 1;
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#endif /* CONFIG_ARCH_MSM */
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}
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return bcmerror;
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}
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static int dhdpcie_suspend_host_dev(dhd_bus_t *bus)
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{
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int bcmerror = 0;
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#ifdef USE_EXYNOS_PCIE_RC_PMPATCH
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struct pci_dev *rc_pci_dev;
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rc_pci_dev = pci_get_device(0x144d, SAMSUNG_PCIE_DEVICE_ID, NULL);
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if (rc_pci_dev) {
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pci_save_state(rc_pci_dev);
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}
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exynos_pcie_pm_suspend(SAMSUNG_PCIE_CH_NUM);
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#endif /* USE_EXYNOS_PCIE_RC_PMPATCH */
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#ifdef CONFIG_ARCH_MSM
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bcmerror = dhdpcie_stop_host_pcieclock(bus);
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#endif /* CONFIG_ARCH_MSM */
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return bcmerror;
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}
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|
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int dhdpcie_pci_suspend_resume(dhd_bus_t *bus, bool state)
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{
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int rc;
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|
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struct pci_dev *dev = bus->dev;
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if (state) {
|
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if (bus->is_linkdown) {
|
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DHD_ERROR(("%s: PCIe link was down\n", __FUNCTION__));
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return BCME_ERROR;
|
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}
|
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#ifndef BCMPCIE_OOB_HOST_WAKE
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dhdpcie_pme_active(bus->osh, state);
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#endif /* !BCMPCIE_OOB_HOST_WAKE */
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rc = dhdpcie_suspend_dev(dev);
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if (!rc) {
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dhdpcie_suspend_host_dev(bus);
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}
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} else {
|
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dhdpcie_resume_host_dev(bus);
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rc = dhdpcie_resume_dev(dev);
|
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#ifndef BCMPCIE_OOB_HOST_WAKE
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dhdpcie_pme_active(bus->osh, state);
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#endif /* !BCMPCIE_OOB_HOST_WAKE */
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#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27))
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if (bus->is_linkdown) {
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bus->dhd->hang_reason = HANG_REASON_PCIE_RC_LINK_UP_FAIL;
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dhd_os_send_hang_message(bus->dhd);
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}
|
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#endif
|
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}
|
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return rc;
|
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}
|
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|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 0))
|
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static int dhdpcie_device_scan(struct device *dev, void *data)
|
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{
|
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struct pci_dev *pcidev;
|
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int *cnt = data;
|
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|
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pcidev = container_of(dev, struct pci_dev, dev);
|
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if (pcidev->vendor != 0x14e4)
|
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return 0;
|
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|
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DHD_INFO(("Found Broadcom PCI device 0x%04x\n", pcidev->device));
|
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*cnt += 1;
|
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if (pcidev->driver && strcmp(pcidev->driver->name, dhdpcie_driver.name))
|
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DHD_ERROR(("Broadcom PCI Device 0x%04x has allocated with driver %s\n",
|
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pcidev->device, pcidev->driver->name));
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|
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return 0;
|
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}
|
|
#endif /* LINUX_VERSION >= 2.6.0 */
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|
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int
|
|
dhdpcie_bus_register(void)
|
|
{
|
|
int error = 0;
|
|
|
|
|
|
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 0))
|
|
if (!(error = pci_module_init(&dhdpcie_driver)))
|
|
return 0;
|
|
|
|
DHD_ERROR(("%s: pci_module_init failed 0x%x\n", __FUNCTION__, error));
|
|
#else
|
|
if (!(error = pci_register_driver(&dhdpcie_driver))) {
|
|
bus_for_each_dev(dhdpcie_driver.driver.bus, NULL, &error, dhdpcie_device_scan);
|
|
if (!error) {
|
|
DHD_ERROR(("No Broadcom PCI device enumerated!\n"));
|
|
} else if (!dhdpcie_init_succeeded) {
|
|
DHD_ERROR(("%s: dhdpcie initialize failed.\n", __FUNCTION__));
|
|
} else {
|
|
return 0;
|
|
}
|
|
|
|
pci_unregister_driver(&dhdpcie_driver);
|
|
error = BCME_ERROR;
|
|
}
|
|
#endif /* LINUX_VERSION < 2.6.0 */
|
|
|
|
return error;
|
|
}
|
|
|
|
|
|
void
|
|
dhdpcie_bus_unregister(void)
|
|
{
|
|
pci_unregister_driver(&dhdpcie_driver);
|
|
}
|
|
|
|
int __devinit
|
|
dhdpcie_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
|
|
{
|
|
#ifdef BUS_POWER_RESTORE
|
|
wifi_adapter_info_t *adapter = NULL;
|
|
#endif
|
|
|
|
if (dhdpcie_chipmatch (pdev->vendor, pdev->device)) {
|
|
DHD_ERROR(("%s: chipmatch failed!!\n", __FUNCTION__));
|
|
return -ENODEV;
|
|
}
|
|
printf("PCI_PROBE: bus %X, slot %X,vendor %X, device %X"
|
|
"(good PCI location)\n", pdev->bus->number,
|
|
PCI_SLOT(pdev->devfn), pdev->vendor, pdev->device);
|
|
|
|
if (dhdpcie_init (pdev)) {
|
|
DHD_ERROR(("%s: PCIe Enumeration failed\n", __FUNCTION__));
|
|
return -ENODEV;
|
|
}
|
|
|
|
#ifdef BCMPCIE_DISABLE_ASYNC_SUSPEND
|
|
/* disable async suspend */
|
|
device_disable_async_suspend(&pdev->dev);
|
|
#endif /* BCMPCIE_DISABLE_ASYNC_SUSPEND */
|
|
|
|
#ifdef BUS_POWER_RESTORE
|
|
adapter = dhd_wifi_platform_get_adapter(PCI_BUS, pdev->bus->number,
|
|
PCI_SLOT(pdev->devfn));
|
|
|
|
if (adapter != NULL)
|
|
adapter->pci_dev = pdev;
|
|
#endif
|
|
|
|
DHD_TRACE(("%s: PCIe Enumeration done!!\n", __FUNCTION__));
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
dhdpcie_detach(dhdpcie_info_t *pch)
|
|
{
|
|
if (pch) {
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
|
|
if (!dhd_download_fw_on_driverload) {
|
|
pci_load_and_free_saved_state(pch->dev, &pch->default_state);
|
|
}
|
|
#endif /* OEM_ANDROID && LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */
|
|
MFREE(pch->osh, pch, sizeof(dhdpcie_info_t));
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
void __devexit
|
|
dhdpcie_pci_remove(struct pci_dev *pdev)
|
|
{
|
|
osl_t *osh = NULL;
|
|
dhdpcie_info_t *pch = NULL;
|
|
dhd_bus_t *bus = NULL;
|
|
|
|
DHD_TRACE(("%s Enter\n", __FUNCTION__));
|
|
|
|
#if defined(MULTIPLE_SUPPLICANT)
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
|
|
if (mutex_is_locked(&_dhd_sdio_mutex_lock_) == 0) {
|
|
DHD_ERROR(("%s : no mutex held. set lock\n", __FUNCTION__));
|
|
}
|
|
else {
|
|
DHD_ERROR(("%s : mutex is locked!. wait for unlocking\n", __FUNCTION__));
|
|
}
|
|
mutex_lock(&_dhd_sdio_mutex_lock_);
|
|
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) */
|
|
#endif
|
|
|
|
pch = pci_get_drvdata(pdev);
|
|
bus = pch->bus;
|
|
osh = pch->osh;
|
|
|
|
#ifdef SUPPORT_LINKDOWN_RECOVERY
|
|
if (bus) {
|
|
#ifdef CONFIG_ARCH_MSM
|
|
msm_pcie_deregister_event(&bus->pcie_event);
|
|
#endif /* CONFIG_ARCH_MSM */
|
|
#ifdef EXYNOS_PCIE_LINKDOWN_RECOVERY
|
|
#ifdef CONFIG_SOC_EXYNOS8890
|
|
exynos_pcie_deregister_event(&bus->pcie_event);
|
|
#endif /* CONFIG_SOC_EXYNOS8890 */
|
|
#endif /* EXYNOS_PCIE_LINKDOWN_RECOVERY */
|
|
}
|
|
#endif /* SUPPORT_LINKDOWN_RECOVERY */
|
|
dhdpcie_bus_release(bus);
|
|
pci_disable_device(pdev);
|
|
#ifdef BCMPCIE_OOB_HOST_WAKE
|
|
/* pcie os info detach */
|
|
MFREE(osh, pch->os_cxt, sizeof(dhdpcie_os_info_t));
|
|
#endif /* BCMPCIE_OOB_HOST_WAKE */
|
|
/* pcie info detach */
|
|
dhdpcie_detach(pch);
|
|
/* osl detach */
|
|
osl_detach(osh);
|
|
|
|
dhdpcie_init_succeeded = FALSE;
|
|
|
|
#if defined(MULTIPLE_SUPPLICANT)
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
|
|
mutex_unlock(&_dhd_sdio_mutex_lock_);
|
|
DHD_ERROR(("%s : the lock is released.\n", __FUNCTION__));
|
|
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) */
|
|
#endif /* LINUX */
|
|
|
|
DHD_TRACE(("%s Exit\n", __FUNCTION__));
|
|
|
|
return;
|
|
}
|
|
|
|
/* Free Linux irq */
|
|
int
|
|
dhdpcie_request_irq(dhdpcie_info_t *dhdpcie_info)
|
|
{
|
|
dhd_bus_t *bus = dhdpcie_info->bus;
|
|
struct pci_dev *pdev = dhdpcie_info->bus->dev;
|
|
int err = 0;
|
|
|
|
if (!bus->irq_registered) {
|
|
snprintf(dhdpcie_info->pciname, sizeof(dhdpcie_info->pciname),
|
|
"dhdpcie:%s", pci_name(pdev));
|
|
#ifdef DHD_USE_MSI
|
|
printf("%s: MSI enabled\n", __FUNCTION__);
|
|
err = pci_enable_msi(pdev);
|
|
if (err < 0) {
|
|
DHD_ERROR(("%s: pci_enable_msi() failed, %d, fall back to INTx\n", __FUNCTION__, err));
|
|
}
|
|
#else
|
|
printf("%s: MSI not enabled\n", __FUNCTION__);
|
|
#endif /* DHD_USE_MSI */
|
|
err = request_irq(pdev->irq, dhdpcie_isr, IRQF_SHARED,
|
|
dhdpcie_info->pciname, bus);
|
|
if (err) {
|
|
DHD_ERROR(("%s: request_irq() failed\n", __FUNCTION__));
|
|
#ifdef DHD_USE_MSI
|
|
pci_disable_msi(pdev);
|
|
#endif /* DHD_USE_MSI */
|
|
return -1;
|
|
} else {
|
|
bus->irq_registered = TRUE;
|
|
}
|
|
} else {
|
|
DHD_ERROR(("%s: PCI IRQ is already registered\n", __FUNCTION__));
|
|
}
|
|
|
|
DHD_TRACE(("%s %s\n", __FUNCTION__, dhdpcie_info->pciname));
|
|
|
|
|
|
return 0; /* SUCCESS */
|
|
}
|
|
|
|
#ifdef CONFIG_PHYS_ADDR_T_64BIT
|
|
#define PRINTF_RESOURCE "0x%016llx"
|
|
#else
|
|
#define PRINTF_RESOURCE "0x%08x"
|
|
#endif
|
|
|
|
/*
|
|
|
|
Name: osl_pci_get_resource
|
|
|
|
Parametrs:
|
|
|
|
1: struct pci_dev *pdev -- pci device structure
|
|
2: pci_res -- structure containing pci configuration space values
|
|
|
|
|
|
Return value:
|
|
|
|
int - Status (TRUE or FALSE)
|
|
|
|
Description:
|
|
Access PCI configuration space, retrieve PCI allocated resources , updates in resource structure.
|
|
|
|
*/
|
|
int dhdpcie_get_resource(dhdpcie_info_t *dhdpcie_info)
|
|
{
|
|
phys_addr_t bar0_addr, bar1_addr;
|
|
ulong bar1_size;
|
|
struct pci_dev *pdev = NULL;
|
|
pdev = dhdpcie_info->dev;
|
|
do {
|
|
if (pci_enable_device(pdev)) {
|
|
printf("%s: Cannot enable PCI device\n", __FUNCTION__);
|
|
break;
|
|
}
|
|
pci_set_master(pdev);
|
|
bar0_addr = pci_resource_start(pdev, 0); /* Bar-0 mapped address */
|
|
bar1_addr = pci_resource_start(pdev, 2); /* Bar-1 mapped address */
|
|
|
|
/* read Bar-1 mapped memory range */
|
|
bar1_size = pci_resource_len(pdev, 2);
|
|
|
|
if ((bar1_size == 0) || (bar1_addr == 0)) {
|
|
printf("%s: BAR1 Not enabled for this device size(%ld),"
|
|
" addr(0x"PRINTF_RESOURCE")\n",
|
|
__FUNCTION__, bar1_size, bar1_addr);
|
|
goto err;
|
|
}
|
|
|
|
dhdpcie_info->regs = (volatile char *) REG_MAP(bar0_addr, DONGLE_REG_MAP_SIZE);
|
|
dhdpcie_info->tcm = (volatile char *) REG_MAP(bar1_addr, DONGLE_TCM_MAP_SIZE);
|
|
dhdpcie_info->tcm_size = DONGLE_TCM_MAP_SIZE;
|
|
|
|
if (!dhdpcie_info->regs || !dhdpcie_info->tcm) {
|
|
DHD_ERROR(("%s:ioremap() failed\n", __FUNCTION__));
|
|
break;
|
|
}
|
|
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
|
|
if (!dhd_download_fw_on_driverload) {
|
|
/* Backup PCIe configuration so as to use Wi-Fi on/off process
|
|
* in case of built in driver
|
|
*/
|
|
pci_save_state(pdev);
|
|
dhdpcie_info->default_state = pci_store_saved_state(pdev);
|
|
|
|
if (dhdpcie_info->default_state == NULL) {
|
|
DHD_ERROR(("%s pci_store_saved_state returns NULL\n",
|
|
__FUNCTION__));
|
|
REG_UNMAP(dhdpcie_info->regs);
|
|
REG_UNMAP(dhdpcie_info->tcm);
|
|
pci_disable_device(pdev);
|
|
break;
|
|
}
|
|
}
|
|
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */
|
|
|
|
DHD_TRACE(("%s:Phys addr : reg space = %p base addr 0x"PRINTF_RESOURCE" \n",
|
|
__FUNCTION__, dhdpcie_info->regs, bar0_addr));
|
|
DHD_TRACE(("%s:Phys addr : tcm_space = %p base addr 0x"PRINTF_RESOURCE" \n",
|
|
__FUNCTION__, dhdpcie_info->tcm, bar1_addr));
|
|
|
|
return 0; /* SUCCESS */
|
|
} while (0);
|
|
err:
|
|
return -1; /* FAILURE */
|
|
}
|
|
|
|
int dhdpcie_scan_resource(dhdpcie_info_t *dhdpcie_info)
|
|
{
|
|
|
|
DHD_TRACE(("%s: ENTER\n", __FUNCTION__));
|
|
|
|
do {
|
|
/* define it here only!! */
|
|
if (dhdpcie_get_resource (dhdpcie_info)) {
|
|
DHD_ERROR(("%s: Failed to get PCI resources\n", __FUNCTION__));
|
|
break;
|
|
}
|
|
DHD_TRACE(("%s:Exit - SUCCESS \n",
|
|
__FUNCTION__));
|
|
|
|
return 0; /* SUCCESS */
|
|
|
|
} while (0);
|
|
|
|
DHD_TRACE(("%s:Exit - FAILURE \n", __FUNCTION__));
|
|
|
|
return -1; /* FAILURE */
|
|
|
|
}
|
|
|
|
#ifdef SUPPORT_LINKDOWN_RECOVERY
|
|
#if defined(CONFIG_ARCH_MSM) || (defined(EXYNOS_PCIE_LINKDOWN_RECOVERY) && \
|
|
defined(CONFIG_SOC_EXYNOS8890))
|
|
void dhdpcie_linkdown_cb(struct_pcie_notify *noti)
|
|
{
|
|
struct pci_dev *pdev = (struct pci_dev *)noti->user;
|
|
dhdpcie_info_t *pch = NULL;
|
|
|
|
if (pdev) {
|
|
pch = pci_get_drvdata(pdev);
|
|
if (pch) {
|
|
dhd_bus_t *bus = pch->bus;
|
|
if (bus) {
|
|
dhd_pub_t *dhd = bus->dhd;
|
|
if (dhd) {
|
|
DHD_ERROR(("%s: Event HANG send up "
|
|
"due to PCIe linkdown\n",
|
|
__FUNCTION__));
|
|
#ifdef CONFIG_ARCH_MSM
|
|
bus->no_cfg_restore = 1;
|
|
#endif /* CONFIG_ARCH_MSM */
|
|
bus->is_linkdown = 1;
|
|
DHD_OS_WAKE_LOCK(dhd);
|
|
dhd->hang_reason = HANG_REASON_PCIE_LINK_DOWN;
|
|
dhd_os_send_hang_message(dhd);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
#endif /* CONFIG_ARCH_MSM || (EXYNOS_PCIE_LINKDOWN_RECOVERY && CONFIG_SOC_EXYNOS8890) */
|
|
#endif /* EXYNOS_PCIE_LINKDOWN_RECOVERY */
|
|
|
|
#if defined(MULTIPLE_SUPPLICANT)
|
|
extern void wl_android_post_init(void); // terence 20120530: fix critical section in dhd_open and dhdsdio_probe
|
|
#endif
|
|
|
|
int dhdpcie_init(struct pci_dev *pdev)
|
|
{
|
|
|
|
osl_t *osh = NULL;
|
|
dhd_bus_t *bus = NULL;
|
|
dhdpcie_info_t *dhdpcie_info = NULL;
|
|
wifi_adapter_info_t *adapter = NULL;
|
|
#ifdef BCMPCIE_OOB_HOST_WAKE
|
|
dhdpcie_os_info_t *dhdpcie_osinfo = NULL;
|
|
#endif /* BCMPCIE_OOB_HOST_WAKE */
|
|
|
|
#if defined(MULTIPLE_SUPPLICANT)
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
|
|
if (mutex_is_locked(&_dhd_sdio_mutex_lock_) == 0) {
|
|
DHD_ERROR(("%s : no mutex held. set lock\n", __FUNCTION__));
|
|
}
|
|
else {
|
|
DHD_ERROR(("%s : mutex is locked!. wait for unlocking\n", __FUNCTION__));
|
|
}
|
|
mutex_lock(&_dhd_sdio_mutex_lock_);
|
|
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25)) */
|
|
#endif
|
|
|
|
do {
|
|
/* osl attach */
|
|
if (!(osh = osl_attach(pdev, PCI_BUS, FALSE))) {
|
|
DHD_ERROR(("%s: osl_attach failed\n", __FUNCTION__));
|
|
break;
|
|
}
|
|
|
|
/* initialize static buffer */
|
|
adapter = dhd_wifi_platform_get_adapter(PCI_BUS, pdev->bus->number,
|
|
PCI_SLOT(pdev->devfn));
|
|
if (adapter != NULL)
|
|
DHD_ERROR(("%s: found adapter info '%s'\n", __FUNCTION__, adapter->name));
|
|
else
|
|
DHD_ERROR(("%s: can't find adapter info for this chip\n", __FUNCTION__));
|
|
osl_static_mem_init(osh, adapter);
|
|
|
|
/* Set ACP coherence flag */
|
|
if (OSL_ACP_WAR_ENAB() || OSL_ARCH_IS_COHERENT())
|
|
osl_flag_set(osh, OSL_ACP_COHERENCE);
|
|
|
|
/* allocate linux spcific pcie structure here */
|
|
if (!(dhdpcie_info = MALLOC(osh, sizeof(dhdpcie_info_t)))) {
|
|
DHD_ERROR(("%s: MALLOC of dhd_bus_t failed\n", __FUNCTION__));
|
|
break;
|
|
}
|
|
bzero(dhdpcie_info, sizeof(dhdpcie_info_t));
|
|
dhdpcie_info->osh = osh;
|
|
dhdpcie_info->dev = pdev;
|
|
|
|
#ifdef BCMPCIE_OOB_HOST_WAKE
|
|
/* allocate OS speicific structure */
|
|
dhdpcie_osinfo = MALLOC(osh, sizeof(dhdpcie_os_info_t));
|
|
if (dhdpcie_osinfo == NULL) {
|
|
DHD_ERROR(("%s: MALLOC of dhdpcie_os_info_t failed\n",
|
|
__FUNCTION__));
|
|
break;
|
|
}
|
|
bzero(dhdpcie_osinfo, sizeof(dhdpcie_os_info_t));
|
|
dhdpcie_info->os_cxt = (void *)dhdpcie_osinfo;
|
|
|
|
/* Initialize host wake IRQ */
|
|
spin_lock_init(&dhdpcie_osinfo->oob_irq_spinlock);
|
|
/* Get customer specific host wake IRQ parametres: IRQ number as IRQ type */
|
|
dhdpcie_osinfo->oob_irq_num = wifi_platform_get_irq_number(adapter,
|
|
&dhdpcie_osinfo->oob_irq_flags);
|
|
if (dhdpcie_osinfo->oob_irq_num < 0) {
|
|
DHD_ERROR(("%s: Host OOB irq is not defined\n", __FUNCTION__));
|
|
}
|
|
#endif /* BCMPCIE_OOB_HOST_WAKE */
|
|
|
|
/* Find the PCI resources, verify the */
|
|
/* vendor and device ID, map BAR regions and irq, update in structures */
|
|
if (dhdpcie_scan_resource(dhdpcie_info)) {
|
|
DHD_ERROR(("%s: dhd_Scan_PCI_Res failed\n", __FUNCTION__));
|
|
|
|
break;
|
|
}
|
|
|
|
/* Bus initialization */
|
|
bus = dhdpcie_bus_attach(osh, dhdpcie_info->regs, dhdpcie_info->tcm, pdev);
|
|
if (!bus) {
|
|
DHD_ERROR(("%s:dhdpcie_bus_attach() failed\n", __FUNCTION__));
|
|
break;
|
|
}
|
|
|
|
dhdpcie_info->bus = bus;
|
|
bus->is_linkdown = 0;
|
|
bus->pci_d3hot_done = 0;
|
|
#ifdef DONGLE_ENABLE_ISOLATION
|
|
bus->dhd->dongle_isolation = TRUE;
|
|
#endif /* DONGLE_ENABLE_ISOLATION */
|
|
#ifdef SUPPORT_LINKDOWN_RECOVERY
|
|
#ifdef CONFIG_ARCH_MSM
|
|
bus->pcie_event.events = MSM_PCIE_EVENT_LINKDOWN;
|
|
bus->pcie_event.user = pdev;
|
|
bus->pcie_event.mode = MSM_PCIE_TRIGGER_CALLBACK;
|
|
bus->pcie_event.callback = dhdpcie_linkdown_cb;
|
|
bus->pcie_event.options = MSM_PCIE_CONFIG_NO_RECOVERY;
|
|
msm_pcie_register_event(&bus->pcie_event);
|
|
bus->no_cfg_restore = 0;
|
|
#endif /* CONFIG_ARCH_MSM */
|
|
#ifdef EXYNOS_PCIE_LINKDOWN_RECOVERY
|
|
#ifdef CONFIG_SOC_EXYNOS8890
|
|
bus->pcie_event.events = EXYNOS_PCIE_EVENT_LINKDOWN;
|
|
bus->pcie_event.user = pdev;
|
|
bus->pcie_event.mode = EXYNOS_PCIE_TRIGGER_CALLBACK;
|
|
bus->pcie_event.callback = dhdpcie_linkdown_cb;
|
|
exynos_pcie_register_event(&bus->pcie_event);
|
|
#endif /* CONFIG_SOC_EXYNOS8890 */
|
|
#endif /* EXYNOS_PCIE_LINKDOWN_RECOVERY */
|
|
#endif /* SUPPORT_LINKDOWN_RECOVERY */
|
|
|
|
if (bus->intr) {
|
|
/* Register interrupt callback, but mask it (not operational yet). */
|
|
DHD_INTR(("%s: Registering and masking interrupts\n", __FUNCTION__));
|
|
dhdpcie_bus_intr_disable(bus);
|
|
|
|
if (dhdpcie_request_irq(dhdpcie_info)) {
|
|
DHD_ERROR(("%s: request_irq() failed\n", __FUNCTION__));
|
|
break;
|
|
}
|
|
} else {
|
|
bus->pollrate = 1;
|
|
DHD_INFO(("%s: PCIe interrupt function is NOT registered "
|
|
"due to polling mode\n", __FUNCTION__));
|
|
}
|
|
|
|
#if defined(BCM_REQUEST_FW)
|
|
if (dhd_bus_download_firmware(bus, osh, NULL, NULL) < 0) {
|
|
DHD_ERROR(("%s: failed to download firmware\n", __FUNCTION__));
|
|
}
|
|
bus->nv_path = NULL;
|
|
bus->fw_path = NULL;
|
|
#endif /* BCM_REQUEST_FW */
|
|
|
|
/* set private data for pci_dev */
|
|
pci_set_drvdata(pdev, dhdpcie_info);
|
|
|
|
if (dhd_download_fw_on_driverload) {
|
|
if (dhd_bus_start(bus->dhd)) {
|
|
DHD_ERROR(("%s: dhd_bud_start() failed\n", __FUNCTION__));
|
|
if (!allow_delay_fwdl)
|
|
break;
|
|
}
|
|
} else {
|
|
/* Set ramdom MAC address during boot time */
|
|
get_random_bytes(&bus->dhd->mac.octet[3], 3);
|
|
/* Adding BRCM OUI */
|
|
bus->dhd->mac.octet[0] = 0;
|
|
bus->dhd->mac.octet[1] = 0x90;
|
|
bus->dhd->mac.octet[2] = 0x4C;
|
|
}
|
|
|
|
/* Attach to the OS network interface */
|
|
DHD_TRACE(("%s(): Calling dhd_register_if() \n", __FUNCTION__));
|
|
if (dhd_register_if(bus->dhd, 0, TRUE)) {
|
|
DHD_ERROR(("%s(): ERROR.. dhd_register_if() failed\n", __FUNCTION__));
|
|
break;
|
|
}
|
|
|
|
dhdpcie_init_succeeded = TRUE;
|
|
|
|
#if defined(MULTIPLE_SUPPLICANT)
|
|
wl_android_post_init(); // terence 20120530: fix critical section in dhd_open and dhdsdio_probe
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
|
|
mutex_unlock(&_dhd_sdio_mutex_lock_);
|
|
DHD_ERROR(("%s : the lock is released.\n", __FUNCTION__));
|
|
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
|
|
#endif
|
|
|
|
DHD_TRACE(("%s:Exit - SUCCESS \n", __FUNCTION__));
|
|
return 0; /* return SUCCESS */
|
|
|
|
} while (0);
|
|
/* reverse the initialization in order in case of error */
|
|
|
|
if (bus)
|
|
dhdpcie_bus_release(bus);
|
|
|
|
#ifdef BCMPCIE_OOB_HOST_WAKE
|
|
if (dhdpcie_osinfo) {
|
|
MFREE(osh, dhdpcie_osinfo, sizeof(dhdpcie_os_info_t));
|
|
}
|
|
#endif /* BCMPCIE_OOB_HOST_WAKE */
|
|
|
|
if (dhdpcie_info)
|
|
dhdpcie_detach(dhdpcie_info);
|
|
pci_disable_device(pdev);
|
|
if (osh)
|
|
osl_detach(osh);
|
|
|
|
dhdpcie_init_succeeded = FALSE;
|
|
#if defined(MULTIPLE_SUPPLICANT)
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 25))
|
|
mutex_unlock(&_dhd_sdio_mutex_lock_);
|
|
DHD_ERROR(("%s : the lock is released.\n", __FUNCTION__));
|
|
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2, 6, 27)) */
|
|
#endif
|
|
|
|
DHD_TRACE(("%s:Exit - FAILURE \n", __FUNCTION__));
|
|
|
|
return -1; /* return FAILURE */
|
|
}
|
|
|
|
/* Free Linux irq */
|
|
void
|
|
dhdpcie_free_irq(dhd_bus_t *bus)
|
|
{
|
|
struct pci_dev *pdev = NULL;
|
|
|
|
DHD_TRACE(("%s: freeing up the IRQ\n", __FUNCTION__));
|
|
if (!bus) {
|
|
return;
|
|
}
|
|
|
|
if (bus->irq_registered) {
|
|
pdev = bus->dev;
|
|
free_irq(pdev->irq, bus);
|
|
bus->irq_registered = FALSE;
|
|
#ifdef DHD_USE_MSI
|
|
pci_disable_msi(pdev);
|
|
#endif /* DHD_USE_MSI */
|
|
} else {
|
|
DHD_ERROR(("%s: PCIe IRQ is not registered\n", __FUNCTION__));
|
|
}
|
|
DHD_TRACE(("%s: Exit\n", __FUNCTION__));
|
|
return;
|
|
}
|
|
|
|
/*
|
|
|
|
Name: dhdpcie_isr
|
|
|
|
Parametrs:
|
|
|
|
1: IN int irq -- interrupt vector
|
|
2: IN void *arg -- handle to private data structure
|
|
|
|
Return value:
|
|
|
|
Status (TRUE or FALSE)
|
|
|
|
Description:
|
|
Interrupt Service routine checks for the status register,
|
|
disable interrupt and queue DPC if mail box interrupts are raised.
|
|
*/
|
|
|
|
|
|
irqreturn_t
|
|
dhdpcie_isr(int irq, void *arg)
|
|
{
|
|
dhd_bus_t *bus = (dhd_bus_t*)arg;
|
|
if (dhdpcie_bus_isr(bus))
|
|
return TRUE;
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
int
|
|
dhdpcie_start_host_pcieclock(dhd_bus_t *bus)
|
|
{
|
|
int ret = 0;
|
|
#ifdef CONFIG_ARCH_MSM
|
|
#ifdef SUPPORT_LINKDOWN_RECOVERY
|
|
int options = 0;
|
|
#endif /* SUPPORT_LINKDOWN_RECOVERY */
|
|
#endif /* CONFIG_ARCH_MSM */
|
|
DHD_TRACE(("%s Enter:\n", __FUNCTION__));
|
|
|
|
if (bus == NULL) {
|
|
return BCME_ERROR;
|
|
}
|
|
|
|
if (bus->dev == NULL) {
|
|
return BCME_ERROR;
|
|
}
|
|
|
|
#ifdef CONFIG_ARCH_MSM
|
|
#ifdef SUPPORT_LINKDOWN_RECOVERY
|
|
if (bus->no_cfg_restore) {
|
|
options = MSM_PCIE_CONFIG_NO_CFG_RESTORE;
|
|
}
|
|
ret = msm_pcie_pm_control(MSM_PCIE_RESUME, bus->dev->bus->number,
|
|
bus->dev, NULL, options);
|
|
if (bus->no_cfg_restore && !ret) {
|
|
msm_pcie_recover_config(bus->dev);
|
|
bus->no_cfg_restore = 0;
|
|
}
|
|
#else
|
|
ret = msm_pcie_pm_control(MSM_PCIE_RESUME, bus->dev->bus->number,
|
|
bus->dev, NULL, 0);
|
|
#endif /* SUPPORT_LINKDOWN_RECOVERY */
|
|
if (ret) {
|
|
DHD_ERROR(("%s Failed to bring up PCIe link\n", __FUNCTION__));
|
|
goto done;
|
|
}
|
|
|
|
done:
|
|
#endif /* CONFIG_ARCH_MSM */
|
|
DHD_TRACE(("%s Exit:\n", __FUNCTION__));
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
dhdpcie_stop_host_pcieclock(dhd_bus_t *bus)
|
|
{
|
|
int ret = 0;
|
|
#ifdef CONFIG_ARCH_MSM
|
|
#ifdef SUPPORT_LINKDOWN_RECOVERY
|
|
int options = 0;
|
|
#endif /* SUPPORT_LINKDOWN_RECOVERY */
|
|
#endif /* CONFIG_ARCH_MSM */
|
|
|
|
DHD_TRACE(("%s Enter:\n", __FUNCTION__));
|
|
|
|
if (bus == NULL) {
|
|
return BCME_ERROR;
|
|
}
|
|
|
|
if (bus->dev == NULL) {
|
|
return BCME_ERROR;
|
|
}
|
|
|
|
#ifdef CONFIG_ARCH_MSM
|
|
#ifdef SUPPORT_LINKDOWN_RECOVERY
|
|
if (bus->no_cfg_restore) {
|
|
options = MSM_PCIE_CONFIG_NO_CFG_RESTORE | MSM_PCIE_CONFIG_LINKDOWN;
|
|
}
|
|
|
|
ret = msm_pcie_pm_control(MSM_PCIE_SUSPEND, bus->dev->bus->number,
|
|
bus->dev, NULL, options);
|
|
#else
|
|
ret = msm_pcie_pm_control(MSM_PCIE_SUSPEND, bus->dev->bus->number,
|
|
bus->dev, NULL, 0);
|
|
#endif /* SUPPORT_LINKDOWN_RECOVERY */
|
|
if (ret) {
|
|
DHD_ERROR(("Failed to stop PCIe link\n"));
|
|
goto done;
|
|
}
|
|
done:
|
|
#endif /* CONFIG_ARCH_MSM */
|
|
DHD_TRACE(("%s Exit:\n", __FUNCTION__));
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
dhdpcie_disable_device(dhd_bus_t *bus)
|
|
{
|
|
DHD_TRACE(("%s Enter:\n", __FUNCTION__));
|
|
|
|
if (bus == NULL) {
|
|
return BCME_ERROR;
|
|
}
|
|
|
|
if (bus->dev == NULL) {
|
|
return BCME_ERROR;
|
|
}
|
|
|
|
pci_disable_device(bus->dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
dhdpcie_enable_device(dhd_bus_t *bus)
|
|
{
|
|
int ret = BCME_ERROR;
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
|
|
dhdpcie_info_t *pch;
|
|
#endif /* LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0) */
|
|
|
|
DHD_TRACE(("%s Enter:\n", __FUNCTION__));
|
|
|
|
if (bus == NULL) {
|
|
return BCME_ERROR;
|
|
}
|
|
|
|
if (bus->dev == NULL) {
|
|
return BCME_ERROR;
|
|
}
|
|
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0))
|
|
pch = pci_get_drvdata(bus->dev);
|
|
if (pch == NULL) {
|
|
return BCME_ERROR;
|
|
}
|
|
|
|
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 14, 0)) && !defined(CONFIG_SOC_EXYNOS8890)
|
|
/* Updated with pci_load_and_free_saved_state to compatible
|
|
* with kernel 3.14 or higher
|
|
*/
|
|
pci_load_and_free_saved_state(bus->dev, &pch->default_state);
|
|
pch->default_state = pci_store_saved_state(bus->dev);
|
|
#else
|
|
pci_load_saved_state(bus->dev, pch->default_state);
|
|
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 14, 0)) && !CONFIG_SOC_EXYNOS8890 */
|
|
|
|
pci_restore_state(bus->dev);
|
|
#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 0, 0)) */
|
|
|
|
ret = pci_enable_device(bus->dev);
|
|
if (ret) {
|
|
pci_disable_device(bus->dev);
|
|
} else {
|
|
pci_set_master(bus->dev);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int
|
|
dhdpcie_alloc_resource(dhd_bus_t *bus)
|
|
{
|
|
dhdpcie_info_t *dhdpcie_info;
|
|
phys_addr_t bar0_addr, bar1_addr;
|
|
ulong bar1_size;
|
|
|
|
do {
|
|
if (bus == NULL) {
|
|
DHD_ERROR(("%s: bus is NULL\n", __FUNCTION__));
|
|
break;
|
|
}
|
|
|
|
if (bus->dev == NULL) {
|
|
DHD_ERROR(("%s: bus->dev is NULL\n", __FUNCTION__));
|
|
break;
|
|
}
|
|
|
|
dhdpcie_info = pci_get_drvdata(bus->dev);
|
|
if (dhdpcie_info == NULL) {
|
|
DHD_ERROR(("%s: dhdpcie_info is NULL\n", __FUNCTION__));
|
|
break;
|
|
}
|
|
|
|
bar0_addr = pci_resource_start(bus->dev, 0); /* Bar-0 mapped address */
|
|
bar1_addr = pci_resource_start(bus->dev, 2); /* Bar-1 mapped address */
|
|
|
|
/* read Bar-1 mapped memory range */
|
|
bar1_size = pci_resource_len(bus->dev, 2);
|
|
|
|
if ((bar1_size == 0) || (bar1_addr == 0)) {
|
|
printf("%s: BAR1 Not enabled for this device size(%ld),"
|
|
" addr(0x"PRINTF_RESOURCE")\n",
|
|
__FUNCTION__, bar1_size, bar1_addr);
|
|
break;
|
|
}
|
|
|
|
dhdpcie_info->regs = (volatile char *) REG_MAP(bar0_addr, DONGLE_REG_MAP_SIZE);
|
|
if (!dhdpcie_info->regs) {
|
|
DHD_ERROR(("%s: ioremap() for regs is failed\n", __FUNCTION__));
|
|
break;
|
|
}
|
|
|
|
bus->regs = dhdpcie_info->regs;
|
|
dhdpcie_info->tcm = (volatile char *) REG_MAP(bar1_addr, DONGLE_TCM_MAP_SIZE);
|
|
dhdpcie_info->tcm_size = DONGLE_TCM_MAP_SIZE;
|
|
if (!dhdpcie_info->tcm) {
|
|
DHD_ERROR(("%s: ioremap() for regs is failed\n", __FUNCTION__));
|
|
REG_UNMAP(dhdpcie_info->regs);
|
|
bus->regs = NULL;
|
|
break;
|
|
}
|
|
|
|
bus->tcm = dhdpcie_info->tcm;
|
|
|
|
DHD_TRACE(("%s:Phys addr : reg space = %p base addr 0x"PRINTF_RESOURCE" \n",
|
|
__FUNCTION__, dhdpcie_info->regs, bar0_addr));
|
|
DHD_TRACE(("%s:Phys addr : tcm_space = %p base addr 0x"PRINTF_RESOURCE" \n",
|
|
__FUNCTION__, dhdpcie_info->tcm, bar1_addr));
|
|
|
|
return 0;
|
|
} while (0);
|
|
|
|
return BCME_ERROR;
|
|
}
|
|
|
|
void
|
|
dhdpcie_free_resource(dhd_bus_t *bus)
|
|
{
|
|
dhdpcie_info_t *dhdpcie_info;
|
|
|
|
if (bus == NULL) {
|
|
DHD_ERROR(("%s: bus is NULL\n", __FUNCTION__));
|
|
return;
|
|
}
|
|
|
|
if (bus->dev == NULL) {
|
|
DHD_ERROR(("%s: bus->dev is NULL\n", __FUNCTION__));
|
|
return;
|
|
}
|
|
|
|
dhdpcie_info = pci_get_drvdata(bus->dev);
|
|
if (dhdpcie_info == NULL) {
|
|
DHD_ERROR(("%s: dhdpcie_info is NULL\n", __FUNCTION__));
|
|
return;
|
|
}
|
|
|
|
if (bus->regs) {
|
|
REG_UNMAP(dhdpcie_info->regs);
|
|
bus->regs = NULL;
|
|
}
|
|
|
|
if (bus->tcm) {
|
|
REG_UNMAP(dhdpcie_info->tcm);
|
|
bus->tcm = NULL;
|
|
}
|
|
}
|
|
|
|
int
|
|
dhdpcie_bus_request_irq(struct dhd_bus *bus)
|
|
{
|
|
dhdpcie_info_t *dhdpcie_info;
|
|
int ret = 0;
|
|
|
|
if (bus == NULL) {
|
|
DHD_ERROR(("%s: bus is NULL\n", __FUNCTION__));
|
|
return BCME_ERROR;
|
|
}
|
|
|
|
if (bus->dev == NULL) {
|
|
DHD_ERROR(("%s: bus->dev is NULL\n", __FUNCTION__));
|
|
return BCME_ERROR;
|
|
}
|
|
|
|
dhdpcie_info = pci_get_drvdata(bus->dev);
|
|
if (dhdpcie_info == NULL) {
|
|
DHD_ERROR(("%s: dhdpcie_info is NULL\n", __FUNCTION__));
|
|
return BCME_ERROR;
|
|
}
|
|
|
|
if (bus->intr) {
|
|
/* Register interrupt callback, but mask it (not operational yet). */
|
|
DHD_INTR(("%s: Registering and masking interrupts\n", __FUNCTION__));
|
|
dhdpcie_bus_intr_disable(bus);
|
|
ret = dhdpcie_request_irq(dhdpcie_info);
|
|
if (ret) {
|
|
DHD_ERROR(("%s: request_irq() failed, ret=%d\n",
|
|
__FUNCTION__, ret));
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
#ifdef BCMPCIE_OOB_HOST_WAKE
|
|
void dhdpcie_oob_intr_set(dhd_bus_t *bus, bool enable)
|
|
{
|
|
unsigned long flags;
|
|
dhdpcie_info_t *pch;
|
|
dhdpcie_os_info_t *dhdpcie_osinfo;
|
|
|
|
if (bus == NULL) {
|
|
DHD_ERROR(("%s: bus is NULL\n", __FUNCTION__));
|
|
return;
|
|
}
|
|
|
|
if (bus->dev == NULL) {
|
|
DHD_ERROR(("%s: bus->dev is NULL\n", __FUNCTION__));
|
|
return;
|
|
}
|
|
|
|
pch = pci_get_drvdata(bus->dev);
|
|
if (pch == NULL) {
|
|
DHD_ERROR(("%s: pch is NULL\n", __FUNCTION__));
|
|
return;
|
|
}
|
|
|
|
dhdpcie_osinfo = (dhdpcie_os_info_t *)pch->os_cxt;
|
|
spin_lock_irqsave(&dhdpcie_osinfo->oob_irq_spinlock, flags);
|
|
if ((dhdpcie_osinfo->oob_irq_enabled != enable) &&
|
|
(dhdpcie_osinfo->oob_irq_num > 0)) {
|
|
if (enable) {
|
|
enable_irq(dhdpcie_osinfo->oob_irq_num);
|
|
} else {
|
|
disable_irq_nosync(dhdpcie_osinfo->oob_irq_num);
|
|
}
|
|
dhdpcie_osinfo->oob_irq_enabled = enable;
|
|
}
|
|
spin_unlock_irqrestore(&dhdpcie_osinfo->oob_irq_spinlock, flags);
|
|
}
|
|
|
|
static irqreturn_t wlan_oob_irq(int irq, void *data)
|
|
{
|
|
dhd_bus_t *bus;
|
|
DHD_TRACE(("%s: IRQ Triggered\n", __FUNCTION__));
|
|
bus = (dhd_bus_t *)data;
|
|
dhdpcie_oob_intr_set(bus, FALSE);
|
|
#ifdef DHD_PCIE_RUNTIMEPM
|
|
dhdpcie_runtime_bus_wake(bus->dhd, FALSE, wlan_oob_irq);
|
|
#endif /* DHD_PCIE_RUNTIMPM */
|
|
if (bus->dhd->up && bus->suspended) {
|
|
DHD_OS_OOB_IRQ_WAKE_LOCK_TIMEOUT(bus->dhd, OOB_WAKE_LOCK_TIMEOUT);
|
|
}
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
int dhdpcie_oob_intr_register(dhd_bus_t *bus)
|
|
{
|
|
int err = 0;
|
|
dhdpcie_info_t *pch;
|
|
dhdpcie_os_info_t *dhdpcie_osinfo;
|
|
|
|
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
|
|
if (bus == NULL) {
|
|
DHD_ERROR(("%s: bus is NULL\n", __FUNCTION__));
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (bus->dev == NULL) {
|
|
DHD_ERROR(("%s: bus->dev is NULL\n", __FUNCTION__));
|
|
return -EINVAL;
|
|
}
|
|
|
|
pch = pci_get_drvdata(bus->dev);
|
|
if (pch == NULL) {
|
|
DHD_ERROR(("%s: pch is NULL\n", __FUNCTION__));
|
|
return -EINVAL;
|
|
}
|
|
|
|
dhdpcie_osinfo = (dhdpcie_os_info_t *)pch->os_cxt;
|
|
if (dhdpcie_osinfo->oob_irq_registered) {
|
|
DHD_ERROR(("%s: irq is already registered\n", __FUNCTION__));
|
|
return -EBUSY;
|
|
}
|
|
|
|
if (dhdpcie_osinfo->oob_irq_num > 0) {
|
|
printf("%s OOB irq=%d flags=0x%X\n", __FUNCTION__,
|
|
(int)dhdpcie_osinfo->oob_irq_num,
|
|
(int)dhdpcie_osinfo->oob_irq_flags);
|
|
err = request_irq(dhdpcie_osinfo->oob_irq_num, wlan_oob_irq,
|
|
dhdpcie_osinfo->oob_irq_flags, "dhdpcie_host_wake",
|
|
bus);
|
|
if (err) {
|
|
DHD_ERROR(("%s: request_irq failed with %d\n",
|
|
__FUNCTION__, err));
|
|
return err;
|
|
}
|
|
#if defined(DISABLE_WOWLAN)
|
|
printf("%s: disable_irq_wake\n", __FUNCTION__);
|
|
dhdpcie_osinfo->oob_irq_wake_enabled = FALSE;
|
|
#else
|
|
printf("%s: enable_irq_wake\n", __FUNCTION__);
|
|
err = enable_irq_wake(dhdpcie_osinfo->oob_irq_num);
|
|
if (!err) {
|
|
dhdpcie_osinfo->oob_irq_wake_enabled = TRUE;
|
|
} else
|
|
printf("%s: enable_irq_wake failed with %d\n", __FUNCTION__, err);
|
|
#endif
|
|
dhdpcie_osinfo->oob_irq_enabled = TRUE;
|
|
}
|
|
|
|
dhdpcie_osinfo->oob_irq_registered = TRUE;
|
|
|
|
return err;
|
|
}
|
|
|
|
void dhdpcie_oob_intr_unregister(dhd_bus_t *bus)
|
|
{
|
|
int err = 0;
|
|
dhdpcie_info_t *pch;
|
|
dhdpcie_os_info_t *dhdpcie_osinfo;
|
|
|
|
DHD_TRACE(("%s: Enter\n", __FUNCTION__));
|
|
if (bus == NULL) {
|
|
DHD_ERROR(("%s: bus is NULL\n", __FUNCTION__));
|
|
return;
|
|
}
|
|
|
|
if (bus->dev == NULL) {
|
|
DHD_ERROR(("%s: bus->dev is NULL\n", __FUNCTION__));
|
|
return;
|
|
}
|
|
|
|
pch = pci_get_drvdata(bus->dev);
|
|
if (pch == NULL) {
|
|
DHD_ERROR(("%s: pch is NULL\n", __FUNCTION__));
|
|
return;
|
|
}
|
|
|
|
dhdpcie_osinfo = (dhdpcie_os_info_t *)pch->os_cxt;
|
|
if (!dhdpcie_osinfo->oob_irq_registered) {
|
|
DHD_ERROR(("%s: irq is not registered\n", __FUNCTION__));
|
|
return;
|
|
}
|
|
if (dhdpcie_osinfo->oob_irq_num > 0) {
|
|
if (dhdpcie_osinfo->oob_irq_wake_enabled) {
|
|
err = disable_irq_wake(dhdpcie_osinfo->oob_irq_num);
|
|
if (!err) {
|
|
dhdpcie_osinfo->oob_irq_wake_enabled = FALSE;
|
|
}
|
|
}
|
|
if (dhdpcie_osinfo->oob_irq_enabled) {
|
|
disable_irq(dhdpcie_osinfo->oob_irq_num);
|
|
dhdpcie_osinfo->oob_irq_enabled = FALSE;
|
|
}
|
|
free_irq(dhdpcie_osinfo->oob_irq_num, bus);
|
|
}
|
|
dhdpcie_osinfo->oob_irq_registered = FALSE;
|
|
}
|
|
#endif /* BCMPCIE_OOB_HOST_WAKE */
|
|
|
|
#ifdef DHD_PCIE_RUNTIMEPM
|
|
bool dhd_runtimepm_state(dhd_pub_t *dhd)
|
|
{
|
|
dhd_bus_t *bus;
|
|
unsigned long flags;
|
|
bus = dhd->bus;
|
|
|
|
DHD_GENERAL_LOCK(dhd, flags);
|
|
if (bus->suspended == TRUE) {
|
|
DHD_GENERAL_UNLOCK(dhd, flags);
|
|
DHD_INFO(("Bus is already suspended system PM: %d\n", bus->suspended));
|
|
return FALSE;
|
|
}
|
|
|
|
bus->idlecount++;
|
|
|
|
DHD_TRACE(("%s : Enter \n", __FUNCTION__));
|
|
if ((bus->idletime > 0) && (bus->idlecount >= bus->idletime)) {
|
|
bus->idlecount = 0;
|
|
if (dhd->dhd_bus_busy_state == 0 && dhd->busstate != DHD_BUS_DOWN &&
|
|
dhd->busstate != DHD_BUS_DOWN_IN_PROGRESS) {
|
|
bus->bus_wake = 0;
|
|
dhd->dhd_bus_busy_state |= DHD_BUS_BUSY_RPM_SUSPEND_IN_PROGRESS;
|
|
bus->runtime_resume_done = FALSE;
|
|
/* stop all interface network queue. */
|
|
dhd_bus_stop_queue(bus);
|
|
DHD_GENERAL_UNLOCK(dhd, flags);
|
|
DHD_ERROR(("%s: DHD Idle state!! - idletime :%d, wdtick :%d \n",
|
|
__FUNCTION__, bus->idletime, dhd_runtimepm_ms));
|
|
/* RPM suspend is failed, return FALSE then re-trying */
|
|
if (dhdpcie_set_suspend_resume(bus->dev, TRUE)) {
|
|
DHD_ERROR(("%s: exit with wakelock \n", __FUNCTION__));
|
|
DHD_GENERAL_LOCK(dhd, flags);
|
|
dhd->dhd_bus_busy_state &= ~DHD_BUS_BUSY_RPM_SUSPEND_IN_PROGRESS;
|
|
bus->runtime_resume_done = TRUE;
|
|
/* It can make stuck NET TX Queue without below */
|
|
dhd_bus_start_queue(bus);
|
|
DHD_GENERAL_UNLOCK(dhd, flags);
|
|
smp_wmb();
|
|
wake_up_interruptible(&bus->rpm_queue);
|
|
return FALSE;
|
|
}
|
|
|
|
DHD_GENERAL_LOCK(dhd, flags);
|
|
dhd->dhd_bus_busy_state &= ~DHD_BUS_BUSY_RPM_SUSPEND_IN_PROGRESS;
|
|
dhd->dhd_bus_busy_state |= DHD_BUS_BUSY_RPM_SUSPEND_DONE;
|
|
/* For making sure NET TX Queue active */
|
|
dhd_bus_start_queue(bus);
|
|
DHD_GENERAL_UNLOCK(dhd, flags);
|
|
|
|
wait_event_interruptible(bus->rpm_queue, bus->bus_wake);
|
|
|
|
DHD_GENERAL_LOCK(dhd, flags);
|
|
dhd->dhd_bus_busy_state &= ~DHD_BUS_BUSY_RPM_SUSPEND_DONE;
|
|
dhd->dhd_bus_busy_state |= DHD_BUS_BUSY_RPM_RESUME_IN_PROGRESS;
|
|
DHD_GENERAL_UNLOCK(dhd, flags);
|
|
|
|
dhdpcie_set_suspend_resume(bus->dev, FALSE);
|
|
|
|
DHD_GENERAL_LOCK(dhd, flags);
|
|
dhd->dhd_bus_busy_state &= ~DHD_BUS_BUSY_RPM_RESUME_IN_PROGRESS;
|
|
/* Inform the wake up context that Resume is over */
|
|
bus->runtime_resume_done = TRUE;
|
|
/* For making sure NET TX Queue active */
|
|
dhd_bus_start_queue(bus);
|
|
DHD_GENERAL_UNLOCK(dhd, flags);
|
|
|
|
smp_wmb();
|
|
wake_up_interruptible(&bus->rpm_queue);
|
|
DHD_ERROR(("%s : runtime resume ended\n", __FUNCTION__));
|
|
return TRUE;
|
|
} else {
|
|
DHD_GENERAL_UNLOCK(dhd, flags);
|
|
/* Since one of the contexts are busy (TX, IOVAR or RX)
|
|
* we should not suspend
|
|
*/
|
|
DHD_ERROR(("%s : bus is active with dhd_bus_busy_state = 0x%x\n",
|
|
__FUNCTION__, dhd->dhd_bus_busy_state));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
DHD_GENERAL_UNLOCK(dhd, flags);
|
|
return FALSE;
|
|
} /* dhd_runtimepm_state */
|
|
|
|
/*
|
|
* dhd_runtime_bus_wake
|
|
* TRUE - related with runtime pm context
|
|
* FALSE - It isn't invloved in runtime pm context
|
|
*/
|
|
bool dhd_runtime_bus_wake(dhd_bus_t *bus, bool wait, void *func_addr)
|
|
{
|
|
unsigned long flags;
|
|
bus->idlecount = 0;
|
|
DHD_TRACE(("%s : enter\n", __FUNCTION__));
|
|
if (bus->dhd->up == FALSE) {
|
|
DHD_INFO(("%s : dhd is not up\n", __FUNCTION__));
|
|
return FALSE;
|
|
}
|
|
|
|
DHD_GENERAL_LOCK(bus->dhd, flags);
|
|
if (bus->dhd->dhd_bus_busy_state & DHD_BUS_BUSY_RPM_ALL) {
|
|
/* Wake up RPM state thread if it is suspend in progress or suspended */
|
|
if (bus->dhd->dhd_bus_busy_state & DHD_BUS_BUSY_RPM_SUSPEND_IN_PROGRESS ||
|
|
bus->dhd->dhd_bus_busy_state & DHD_BUS_BUSY_RPM_SUSPEND_DONE) {
|
|
bus->bus_wake = 1;
|
|
|
|
DHD_GENERAL_UNLOCK(bus->dhd, flags);
|
|
|
|
DHD_ERROR(("Runtime Resume is called in %pf\n", func_addr));
|
|
smp_wmb();
|
|
wake_up_interruptible(&bus->rpm_queue);
|
|
/* No need to wake up the RPM state thread */
|
|
} else if (bus->dhd->dhd_bus_busy_state & DHD_BUS_BUSY_RPM_RESUME_IN_PROGRESS) {
|
|
DHD_GENERAL_UNLOCK(bus->dhd, flags);
|
|
}
|
|
|
|
/* If wait is TRUE, function with wait = TRUE will be wait in here */
|
|
if (wait) {
|
|
wait_event_interruptible(bus->rpm_queue, bus->runtime_resume_done);
|
|
} else {
|
|
DHD_INFO(("%s: bus wakeup but no wait until resume done\n", __FUNCTION__));
|
|
}
|
|
/* If it is called from RPM context, it returns TRUE */
|
|
return TRUE;
|
|
}
|
|
|
|
DHD_GENERAL_UNLOCK(bus->dhd, flags);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
bool dhdpcie_runtime_bus_wake(dhd_pub_t *dhdp, bool wait, void* func_addr)
|
|
{
|
|
dhd_bus_t *bus = dhdp->bus;
|
|
return dhd_runtime_bus_wake(bus, wait, func_addr);
|
|
}
|
|
|
|
void dhdpcie_block_runtime_pm(dhd_pub_t *dhdp)
|
|
{
|
|
dhd_bus_t *bus = dhdp->bus;
|
|
bus->idletime = 0;
|
|
}
|
|
|
|
bool dhdpcie_is_resume_done(dhd_pub_t *dhdp)
|
|
{
|
|
dhd_bus_t *bus = dhdp->bus;
|
|
return bus->runtime_resume_done;
|
|
}
|
|
#endif /* DHD_PCIE_RUNTIMEPM */
|