daee03cd52
If modem crashed during wlan driver unloading, icnss driver will call driver uevent callback to send FW down uevent when it receives BEFORE_SHUTDOWN notification. If wlan driver is de-initialized just before the callback is called, kernel will panic as driver's context is freed. This can be avoid by not sending uevent when wlan host driver is unloading. Instead, icnss driver will provide an API to host driver to check if WLAN FW is down or not. CRs-Fixed: 2161425 Change-Id: I569fd85366522606ececeda74df85c51b9b2fc28 Signed-off-by: Yuanyuan Liu <yuanliu@codeaurora.org>
166 lines
5.2 KiB
C
166 lines
5.2 KiB
C
/* Copyright (c) 2015-2017, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _ICNSS_WLAN_H_
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#define _ICNSS_WLAN_H_
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#include <linux/interrupt.h>
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#include <linux/device.h>
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#define ICNSS_MAX_IRQ_REGISTRATIONS 12
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#define ICNSS_MAX_TIMESTAMP_LEN 32
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#ifndef ICNSS_API_WITH_DEV
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#define ICNSS_API_WITH_DEV
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#endif
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enum icnss_uevent {
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ICNSS_UEVENT_FW_READY,
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ICNSS_UEVENT_FW_CRASHED,
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ICNSS_UEVENT_FW_DOWN,
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};
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enum cnss_cc_src {
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CNSS_SOURCE_CORE,
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CNSS_SOURCE_11D,
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CNSS_SOURCE_USER
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};
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struct icnss_uevent_fw_down_data {
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bool crashed;
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};
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struct icnss_uevent_data {
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enum icnss_uevent uevent;
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void *data;
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};
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struct icnss_driver_ops {
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char *name;
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unsigned long drv_state;
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struct device_driver driver;
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int (*probe)(struct device *dev);
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void (*remove)(struct device *dev);
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void (*shutdown)(struct device *dev);
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int (*reinit)(struct device *dev);
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void (*crash_shutdown)(void *pdev);
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int (*pm_suspend)(struct device *dev);
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int (*pm_resume)(struct device *dev);
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int (*suspend_noirq)(struct device *dev);
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int (*resume_noirq)(struct device *dev);
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int (*uevent)(struct device *dev, struct icnss_uevent_data *uevent);
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};
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struct ce_tgt_pipe_cfg {
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u32 pipe_num;
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u32 pipe_dir;
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u32 nentries;
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u32 nbytes_max;
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u32 flags;
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u32 reserved;
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};
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struct ce_svc_pipe_cfg {
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u32 service_id;
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u32 pipe_dir;
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u32 pipe_num;
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};
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struct icnss_shadow_reg_cfg {
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u16 ce_id;
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u16 reg_offset;
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};
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/* CE configuration to target */
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struct icnss_wlan_enable_cfg {
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u32 num_ce_tgt_cfg;
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struct ce_tgt_pipe_cfg *ce_tgt_cfg;
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u32 num_ce_svc_pipe_cfg;
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struct ce_svc_pipe_cfg *ce_svc_cfg;
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u32 num_shadow_reg_cfg;
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struct icnss_shadow_reg_cfg *shadow_reg_cfg;
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};
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/* driver modes */
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enum icnss_driver_mode {
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ICNSS_MISSION,
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ICNSS_FTM,
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ICNSS_EPPING,
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ICNSS_WALTEST,
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ICNSS_OFF,
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ICNSS_CCPM,
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ICNSS_QVIT,
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};
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struct icnss_soc_info {
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void __iomem *v_addr;
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phys_addr_t p_addr;
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uint32_t chip_id;
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uint32_t chip_family;
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uint32_t board_id;
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uint32_t soc_id;
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uint32_t fw_version;
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char fw_build_timestamp[ICNSS_MAX_TIMESTAMP_LEN + 1];
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};
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#define icnss_register_driver(ops) \
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__icnss_register_driver(ops, THIS_MODULE, KBUILD_MODNAME)
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extern int __icnss_register_driver(struct icnss_driver_ops *ops,
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struct module *owner, const char *mod_name);
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extern int icnss_unregister_driver(struct icnss_driver_ops *ops);
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extern int icnss_wlan_enable(struct device *dev,
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struct icnss_wlan_enable_cfg *config,
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enum icnss_driver_mode mode,
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const char *host_version);
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extern int icnss_wlan_disable(struct device *dev, enum icnss_driver_mode mode);
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extern void icnss_enable_irq(struct device *dev, unsigned int ce_id);
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extern void icnss_disable_irq(struct device *dev, unsigned int ce_id);
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extern int icnss_get_soc_info(struct device *dev, struct icnss_soc_info *info);
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extern int icnss_ce_free_irq(struct device *dev, unsigned int ce_id, void *ctx);
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extern int icnss_ce_request_irq(struct device *dev, unsigned int ce_id,
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irqreturn_t (*handler)(int, void *),
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unsigned long flags, const char *name, void *ctx);
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extern int icnss_get_ce_id(struct device *dev, int irq);
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extern int icnss_set_fw_log_mode(struct device *dev, uint8_t fw_log_mode);
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extern int icnss_athdiag_read(struct device *dev, uint32_t offset,
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uint32_t mem_type, uint32_t data_len,
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uint8_t *output);
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extern int icnss_athdiag_write(struct device *dev, uint32_t offset,
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uint32_t mem_type, uint32_t data_len,
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uint8_t *input);
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extern int icnss_get_irq(struct device *dev, int ce_id);
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extern int icnss_power_on(struct device *dev);
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extern int icnss_power_off(struct device *dev);
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extern struct dma_iommu_mapping *icnss_smmu_get_mapping(struct device *dev);
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extern int icnss_smmu_map(struct device *dev, phys_addr_t paddr,
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uint32_t *iova_addr, size_t size);
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extern unsigned int icnss_socinfo_get_serial_number(struct device *dev);
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extern int icnss_set_wlan_unsafe_channel(u16 *unsafe_ch_list, u16 ch_count);
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extern int icnss_get_wlan_unsafe_channel(u16 *unsafe_ch_list, u16 *ch_count,
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u16 buf_len);
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extern int icnss_wlan_set_dfs_nol(const void *info, u16 info_len);
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extern int icnss_wlan_get_dfs_nol(void *info, u16 info_len);
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extern bool icnss_is_qmi_disable(struct device *dev);
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extern bool icnss_is_fw_ready(void);
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extern bool icnss_is_fw_down(void);
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extern int icnss_set_wlan_mac_address(const u8 *in, const uint32_t len);
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extern u8 *icnss_get_wlan_mac_address(struct device *dev, uint32_t *num);
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extern int icnss_trigger_recovery(struct device *dev);
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extern void cnss_set_cc_source(enum cnss_cc_src cc_source);
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extern enum cnss_cc_src cnss_get_cc_source(void);
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extern int icnss_get_driver_load_cnt(void);
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extern void icnss_increment_driver_load_cnt(void);
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extern void icnss_set_cc_source(enum cnss_cc_src cc_source);
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extern enum cnss_cc_src icnss_get_cc_source(void);
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#endif /* _ICNSS_WLAN_H_ */
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