121 lines
3.8 KiB
C
121 lines
3.8 KiB
C
/* Copyright (c) 2012-2013, 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 DIAG_DCI_H
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#define DIAG_DCI_H
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#define MAX_DCI_CLIENTS 10
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#define DCI_PKT_RSP_CODE 0x93
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#define DCI_DELAYED_RSP_CODE 0x94
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#define LOG_CMD_CODE 0x10
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#define EVENT_CMD_CODE 0x60
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#define DCI_PKT_RSP_TYPE 0
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#define DCI_LOG_TYPE -1
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#define DCI_EVENT_TYPE -2
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#define SET_LOG_MASK 1
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#define DISABLE_LOG_MASK 0
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#define MAX_EVENT_SIZE 512
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#define DCI_CLIENT_INDEX_INVALID -1
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#define DCI_PKT_REQ_MIN_LEN 8
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#define DCI_LOG_CON_MIN_LEN 14
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#define DCI_EVENT_CON_MIN_LEN 16
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/* 16 log code categories, each has:
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* 1 bytes equip id + 1 dirty byte + 512 byte max log mask
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*/
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#define DCI_LOG_MASK_SIZE (16*514)
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#define DCI_EVENT_MASK_SIZE 512
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#define DCI_MASK_STREAM 2
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#define DCI_MAX_LOG_CODES 16
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#define DCI_MAX_ITEMS_PER_LOG_CODE 512
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extern unsigned int dci_max_reg;
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extern unsigned int dci_max_clients;
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extern struct mutex dci_health_mutex;
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struct dci_pkt_req_tracking_tbl {
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int pid;
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int uid;
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int tag;
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};
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struct diag_dci_client_tbl {
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struct task_struct *client;
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uint16_t list; /* bit mask */
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int signal_type;
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unsigned char dci_log_mask[DCI_LOG_MASK_SIZE];
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unsigned char dci_event_mask[DCI_EVENT_MASK_SIZE];
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unsigned char *dci_data;
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int data_len;
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int total_capacity;
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int dropped_logs;
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int dropped_events;
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int received_logs;
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int received_events;
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};
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/* This is used for DCI health stats */
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struct diag_dci_health_stats {
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int dropped_logs;
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int dropped_events;
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int received_logs;
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int received_events;
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int reset_status;
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};
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/* This is used for querying DCI Log
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or Event Mask */
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struct diag_log_event_stats {
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uint16_t code;
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int is_set;
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};
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enum {
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DIAG_DCI_NO_ERROR = 1001, /* No error */
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DIAG_DCI_NO_REG, /* Could not register */
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DIAG_DCI_NO_MEM, /* Failed memory allocation */
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DIAG_DCI_NOT_SUPPORTED, /* This particular client is not supported */
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DIAG_DCI_HUGE_PACKET, /* Request/Response Packet too huge */
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DIAG_DCI_SEND_DATA_FAIL,/* writing to kernel or peripheral fails */
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DIAG_DCI_TABLE_ERR /* Error dealing with registration tables */
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};
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int diag_dci_init(void);
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void diag_dci_exit(void);
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void diag_update_smd_dci_work_fn(struct work_struct *);
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void diag_dci_notify_client(int peripheral_mask, int data);
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int diag_process_smd_dci_read_data(struct diag_smd_info *smd_info, void *buf,
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int recd_bytes);
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int diag_process_dci_transaction(unsigned char *buf, int len);
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int diag_send_dci_pkt(struct diag_master_table entry, unsigned char *buf,
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int len, int index);
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void extract_dci_pkt_rsp(struct diag_smd_info *smd_info, unsigned char *buf);
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int diag_dci_find_client_index(int client_id);
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/* DCI Log streaming functions */
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void create_dci_log_mask_tbl(unsigned char *tbl_buf);
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void update_dci_cumulative_log_mask(int offset, unsigned int byte_index,
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uint8_t byte_mask);
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void clear_client_dci_cumulative_log_mask(int client_index);
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int diag_send_dci_log_mask(smd_channel_t *ch);
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void extract_dci_log(unsigned char *buf);
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int diag_dci_clear_log_mask(void);
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int diag_dci_query_log_mask(uint16_t log_code);
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/* DCI event streaming functions */
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void update_dci_cumulative_event_mask(int offset, uint8_t byte_mask);
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void clear_client_dci_cumulative_event_mask(int client_index);
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int diag_send_dci_event_mask(smd_channel_t *ch);
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void extract_dci_events(unsigned char *buf);
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void create_dci_event_mask_tbl(unsigned char *tbl_buf);
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int diag_dci_clear_event_mask(void);
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int diag_dci_query_event_mask(uint16_t event_id);
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#endif
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