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commit4bd763568d("HID: amd_sfh: Support for additional light sensor") adds additional sensor devices, but forgets to add the number of HID devices to match. Thus, the number of HID devices does not match the actual number of sensors. In order to prevent corruption and system hangs when more than the allowed number of HID devices are accessed, the number of HID devices is increased accordingly. Fixes:4bd763568d("HID: amd_sfh: Support for additional light sensor") Link: https://bugzilla.kernel.org/show_bug.cgi?id=217354 Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com> Link: https://lore.kernel.org/r/20230424160406.2579888-1-Basavaraj.Natikar@amd.com Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
83 lines
2.5 KiB
C
83 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* AMD MP2 Sensors transport driver
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*
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* Copyright 2020-2021 Advanced Micro Devices, Inc.
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* Authors: Nehal Bakulchandra Shah <Nehal-bakulchandra.shah@amd.com>
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* Sandeep Singh <sandeep.singh@amd.com>
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* Basavaraj Natikar <Basavaraj.Natikar@amd.com>
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*/
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#ifndef AMDSFH_HID_H
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#define AMDSFH_HID_H
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#define MAX_HID_DEVICES 6
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#define AMD_SFH_HID_VENDOR 0x1022
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#define AMD_SFH_HID_PRODUCT 0x0001
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struct request_list {
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struct hid_device *hid;
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struct list_head list;
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u8 report_id;
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u8 sensor_idx;
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u8 report_type;
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u8 current_index;
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};
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struct amd_input_data {
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u32 *sensor_virt_addr[MAX_HID_DEVICES];
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u8 *input_report[MAX_HID_DEVICES];
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};
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struct amdtp_cl_data {
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u8 init_done;
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u32 cur_hid_dev;
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bool is_any_sensor_enabled;
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u32 hid_dev_count;
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u32 num_hid_devices;
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struct device_info *hid_devices;
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u8 *report_descr[MAX_HID_DEVICES];
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int report_descr_sz[MAX_HID_DEVICES];
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struct hid_device *hid_sensor_hubs[MAX_HID_DEVICES];
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u8 *hid_descr[MAX_HID_DEVICES];
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int hid_descr_size[MAX_HID_DEVICES];
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phys_addr_t phys_addr_base;
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dma_addr_t sensor_dma_addr[MAX_HID_DEVICES];
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u32 sensor_sts[MAX_HID_DEVICES];
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u32 sensor_requested_cnt[MAX_HID_DEVICES];
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u8 report_type[MAX_HID_DEVICES];
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u8 report_id[MAX_HID_DEVICES];
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u8 sensor_idx[MAX_HID_DEVICES];
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u8 *feature_report[MAX_HID_DEVICES];
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u8 request_done[MAX_HID_DEVICES];
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struct amd_input_data *in_data;
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struct delayed_work work;
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struct delayed_work work_buffer;
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struct request_list req_list;
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};
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/**
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* struct amdtp_hid_data - Per instance HID data
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* @index: Device index in the order of enumeration
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* @request_done: Get Feature/Input report complete flag
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* used during get/set request from hid core
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* @cli_data: Link to the client instance
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* @hid_wait: Completion waitq
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*
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* Used to tie hid->driver data to driver client instance
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*/
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struct amdtp_hid_data {
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int index;
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struct amdtp_cl_data *cli_data;
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wait_queue_head_t hid_wait;
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};
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/* Interface functions between HID LL driver and AMD SFH client */
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void hid_amdtp_set_feature(struct hid_device *hid, char *buf, u32 len, int report_id);
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void hid_amdtp_get_report(struct hid_device *hid, int report_id, int report_type);
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int amdtp_hid_probe(u32 cur_hid_dev, struct amdtp_cl_data *cli_data);
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void amdtp_hid_remove(struct amdtp_cl_data *cli_data);
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int amd_sfh_get_report(struct hid_device *hid, int report_id, int report_type);
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void amd_sfh_set_report(struct hid_device *hid, int report_id, int report_type);
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void amdtp_hid_wakeup(struct hid_device *hid);
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#endif
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