Cellular Modem Information » Qualcomm Linux Modems by Quectel & Co

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h1. Diag

h2. Acronyms

|DCI|Diag Consumer Interface|

h2. Child Pages

{{child_pages()}}

h2. Kernel support

See [[Qualcomm_Kernel#diag]]

h2. Library

There is @/usr/lib/libdiag.so.1@ which is linked by virtually any Qualcomm or Quectel proprietary program running on the Linux in the Modem.

it offers the follwing symbols:

<pre>

4af43a7c g    DF .text»·0000014c  Base        log_submit

4af4d128 g    DO .data»·000001d0  Base        pools

4af40578 g    DF .text»·0000000c  Base        diag_vote_md_real_time

4af45f54 g    DF .text»·000000b0  Base        DiagSvc_Free

4af42f98 g    DF .text»·000000ec  Base        diag_dci_get_real_time_status_proc

4af45278 g    DF .text»·00000080  Base        diagpkt_subsys_get_delayed_rsp_id

4af456f8 g    DF .text»·000001cc  Base        diagpkt_subsys_alloc_v2

4af3fed4 g    DF .text»·00000450  Base        diag_read_mask_file_list

4af4515c g    DF .text»·00000020  Base        diagpkt_subsys_get_cmd_code

4af436f8 g    DF .text»·00000024  Base        Diag_LSM_Event_DeInit

4af3cd80 g    DF .text»·00000174  Base        diag_wakelock_init

4af4ecf8 g    DO .data»·000001f4  Base        mask_file2

4b044b30 g    DO .bss»··00000004  Base        cleanup_mask

4af41f54 g    DF .text»·00000160  Base        diag_register_dci_client

4af4eeec g    DO .data»·000001f4  Base        mask_file

4af444e8 g    DF .text»·000000e8  Base        msg_send_var

4af458c4 g    DF .text»·000000ac  Base        diagpkt_subsys_alloc_v2_delay

4b044b5c g    DO .bss»··00000004  Base        log_to_memory

4af453f4 g    DF .text»·000000b8  Base        diagpkt_alloc

4b025b98 g    DO .bss»··00000004  Base        db_thread_initialized

4af3bacc g    DF .init»·00000000  Base        _init

4b044a28 g    DO .bss»··00000030  Base        stop_cond

4af41808 g    DF .text»·00000110  Base        diag_hdlc_toggle

4af3cf5c g    DF .text»·000000b0  Base        diag_wakelock_acquire

4b044b6c g    DO .bss»··00000004  Base        parser_state

4b044b60 g    DO .bss»··00000004  Base        num_bytes_read

4af43884 g    DF .text»·00000054  Base        log_update_dci_mask

4af40324 g    DF .text»·00000004  Base        send_mask_modem

4af4f310 g    DO .data»·00000004  Base        qsr4_db_file_fd

4b0448c8 g    DO .bss»··00000098  Base        qsr4_db_write_buf_pool

4af4342c g    DF .text»·0000005c  Base        event_update_mask

4af3c2b0 g    DF .text»·00000014  Base        mask_sync_initialize

4b042e00 g    DO .bss»··00001388  Base        file_name_curr

4af445d0 g    DF .text»·00000264  Base        msg_sprintf

4af4e910 g    DO .data»·000001f4  Base        mask_file_mdm2

4af435a8 g    DF .text»·000000f0  Base        event_report_payload

4af46088 g    DF .text»·00000098  Base        DiagSvc_Malloc_Init

4af42190 g    DF .text»·00000194  Base        diag_release_dci_client

4af3ccb0 g    DF .text»·00000054  Base        update_sync_mask

4af3f934 g    DF .text»·0000014c  Base        diag_send_socket_data

4af420b4 g    DF .text»·00000094  Base        diag_register_dci_stream_proc

4af45e68 g    DF .text»·000000ec  Base        DiagSvc_Malloc

4b044a58 g    DO .bss»··00000028  Base        buffer_init

4af4bfd8 g    DO .rodata»·······00000004  Base        msg_mask_tbl_size

4b025b8c g    DO .bss»··00000004  Base        curr_write_idx

4af46834 g    DF .text»·00000094  Base        diag_logger_flush

4b044aa8 g    DO .bss»··00000028  Base        pool0_buffers

4af43bc8 g    DF .text»·0000000c  Base        log_set_length

4b044b7c g    DO .bss»··00000001  Base        hdlc_disabled

4af4f314 g    DO .data»·00000028  Base        fd_qsr4_xml

4af4d394 g    DO .data»·000001f4  Base        qsr4_xml_file_name

4af45c30 g    DF .text»·00000238  Base        diagpkt_LSM_process_request

4af40680 g    DF .text»·0000000c  Base        diag_get_real_time_status

4af44d70 g    DF .text»·00000100  Base        Diag_LSM_Pkt_DeInit

4af40864 g    DF .text»·000004f4  Base        flush_buffer

4af40494 g    DF .text»·00000018  Base        diag_callback_send_data

4b044188 g    DO .bss»··00000200  Base        dci_cumulative_event_mask

4b044b44 g    DO .bss»··00000004  Base        dci_transaction_id

4af42940 g    DF .text»·0000010c  Base        diag_get_health_stats_proc

4b044b10 g    DO .bss»··00000018  Base        stop_mutex

4af42a4c g    DF .text»·0000002c  Base        diag_get_health_stats

4af43a68 g    DF .text»·00000014  Base        log_free

4af4eb04 g    DO .data»·000001f4  Base        mask_file_mdm

4af452f8 g    DF .text»·00000080  Base        diagpkt_subsys_reset_delayed_rsp_id

4af46418 g    DF .text»·00000210  Base        diag_logger_init

4af3c2c4 g    DF .text»·00000040  Base        dummy_handler

4af3f870 g    DF .text»·000000c4  Base        diag_send_data

4af488ac g    DF .text»·00000234  Base        diag_kill_qshrink4_threads

4af41b20 g    DF .text»·0000002c  Base        ts_get_lohi

4af45378 g    DF .text»·0000007c  Base        diagpkt_subsys_set_rsp_cnt

4af482b4 g    DF .text»·00000030  Base        diag_notify_parser_thread

4af42c88 g    DF .text»·000000f8  Base        diag_disable_all_logs

4af45a2c g    DF .text»·00000204  Base        diagpkt_commit

4b0238e4 g    DO .bss»··00000004  Base        proc_type

4af42670 g    DF .text»·00000160  Base        diag_log_stream_config

4af43c28 g    DF .text»·00000034  Base        log_status

4af4415c g    DF .text»·000000a4  Base        msg_send

4af3e4b0 g    DF .text»·00000470  Base        WriteToDisk

4af43d04 g    DF .text»·00000050  Base        Diag_LSM_Log_DeInit

4af4f2d4 g    DO .data»·00000004  Base        fd_dev

4af43084 g    DF .text»·0000000c  Base        diag_dci_get_real_time_status

4b0449c4 g    DO .bss»··00000032  Base        qsr4_db_cmd_req_buf

4af45694 g    DF .text»·00000064  Base        diagpkt_subsys_alloc

4af3cc64 g    DF .text»·0000004c  Base        get_sync_mask

4af425bc g    DF .text»·000000a8  Base        diag_get_dci_support_list_proc

4af40584 g    DF .text»·000000fc  Base        diag_get_real_time_status_proc

4b044af8 g    DO .bss»··00000018  Base        qsr4_read_db_mutex

4b044388 g    DO .bss»··000001f4  Base        dir_name

4af3d210 g    DF .text»·0000005c  Base        diag_set_socket_fd

4af4115c g    DF .text»·0000001c  Base        diag_switch_logging_proc

4af45124 g    DF .text»·0000000c  Base        diagpkt_get_cmd_code

4af4517c g    DF .text»·00000080  Base        diagpkt_subsys_get_status

4b044b58 g    DO .bss»··00000004  Base        in_read

4af43698 g    DF .text»·00000060  Base        Diag_LSM_Event_Init

4b044b48 g    DO .bss»··00000004  Base        diag_dci_error_type

4af42d80 g    DF .text»·000000f8  Base        diag_disable_all_events

4b044960 g    DO .bss»··00000064  Base        pid_file

4b044b70 g    DO .bss»··00000004  Base        qsr4_db_parser_thread_hdl

4b044b68 g    DO .bss»··00000004  Base        num_dci_proc

4b025b84 g    DO .bss»··00000004  Base        in_wait_for_peripheral_status

4b044b78 g    DO .bss»··00000004  Base        write_in_progress

4af44d34 g    DF .text»·0000003c  Base        Diag_LSM_Pkt_Init

4af4d328 g    DO .data»·00000004  Base        max_file_size

4af41a18 g    DF .text»·00000108  Base        ts_get

4af42b80 g    DF .text»·00000108  Base        diag_get_event_status

4af43bfc g    DF .text»·00000014  Base        log_set_timestamp

4b044b34 g    DO .bss»··00000004  Base        curr_read

4af43090 g    DF .text»·000000b4  Base        diag_register_dci_signal_data

4af45970 g    DF .text»·00000040  Base        diagpkt_shorten

4b025b90 g    DO .bss»··00000004  Base        curr_read_idx

4b044ad0 g    DO .bss»··00000028  Base        pool1_buffers

4af41d38 g    DF .text»·0000021c  Base        lookup_pkt_rsp_transaction

4b0238f0 g    DO .bss»··00000004  Base        diag_disable_console

4af4d320 g    DO .data»·00000004  Base        max_file_num

4af42324 g    DF .text»·00000298  Base        diag_send_dci_async_req

4af43c10 g    DF .text»·0000000c  Base        log_get_length

4af45130 g    DF .text»·0000000c  Base        diagpkt_set_cmd_code

4af451fc g    DF .text»·0000007c  Base        diagpkt_subsys_set_status

4af41744 g    DF .text»·000000c4  Base        diag_peripheral_buffering_drain_immediate

4b044770 g    DO .bss»··00000155  Base        event_mask

4af439b4 g    DF .text»·000000b4  Base        log_commit

4af4d324 g    DO .data»·00000004  Base        min_file_size

4b02394c g    DO .bss»··00000004  Base        gdwClientID

4af44200 g    DF .text»·000000b4  Base        msg_send_ts

4b044b74 g    DO .bss»··00000004  Base        read_thread_hdl

4af3d26c g    DF .text»·0000004c  Base        valid_token

4af41918 g    DF .text»·0000005c  Base        add_guid_to_qshrink4_header

4b03e240 g    DO .bss»··00004bc0  Base        msg_mask

4b0238f4 g    DO .bss»··00000028  Base        file_list_size

4af43bd4 g    DF .text»·0000001c  Base        log_shorten

4af45a18 g    DF .text»·00000014  Base        diagpkt_free

4af4f2d8 g    DO .data»·00000008  Base        fd_socket

4b044b54 g    DO .bss»··00000004  Base        flush_log

4af482e4 g    DF .text»·000002b4  Base        create_diag_qshrink4_db_parser_thread

4af3fb3c g    DF .text»·00000398  Base        diag_read_mask_file

4af43144 g    DF .text»·000000ac  Base        diag_deregister_dci_signal_data

4b044b64 g    DO .bss»··00000004  Base        num_dci_clients_event

4af4d358 g    DO .data»·0000003c  Base        proc_name

4af41d10 g    DF .text»·00000028  Base        diag_lsm_dci_deinit

4af3d00c g    DF .text»·000000b0  Base        diag_wakelock_release

4b025ba0 g    DO .bss»··000186a0  Base        read_buffer

4af4513c g    DF .text»·00000020  Base        diagpkt_subsys_get_id

4b04457c g    DO .bss»··000001f4  Base        peripheral_name

4af411a4 g    DF .text»·0000042c  Base        Diag_LSM_Init

4af415d0 g    DF .text»·00000174  Base        diag_configure_peripheral_buffering_tx_mode

4b044b38 g    DO .bss»··00000004  Base        curr_write

4af404ac g    DF .text»·00000018  Base        diag_callback_send_data_hdlc

4af448dc g    DF .text»·000000ac  Base        qsr_msg_send_1

4af44988 g    DF .text»·000000b4  Base        qsr_msg_send_2

4b044b3c g    DO .bss»··00000004  Base        db_write_thread_hdl

4af44bd4 g    DF .text»·00000024  Base        Diag_LSM_Msg_Init

4af44a3c g    DF .text»·000000bc  Base        qsr_msg_send_3

4af4d2f8 g    DO .data»·00000028  Base        token_list

4af3d148 g    DF .text»·00000054  Base        diag_has_remote_device

4af3f754 g    DF .text»·0000011c  Base        diag_register_remote_callback

4b025b88 g    DO .bss»··00000004  Base        in_write

4b02391c g    DO .bss»··00000028  Base        file_list

4af46120 g    DF .text»·00000238  Base        process_incoming_data

4af3d3d4 g    DF .text»·000002dc  Base        delete_log

4af3d6b0 g    DF .text»·00000e00  Base        log_to_device

4af4d354 g    DO .data»·00000004  Base        logging_mode

4af43bf0 g    DF .text»·0000000c  Base        log_set_code

4af454ac g    DF .text»·000001e8  Base        diagpkt_delay_commit

4b044b50 g    DO .bss»··00000004  Base        flush_in_progress

4af431f0 g    DF .text»·00000064  Base        diag_send_to_output

4af3d0bc g    DF .text»·00000008  Base        diag_get_max_channels

4af43c5c g    DF .text»·000000a8  Base        Diag_LSM_Log_Init

4af4f0e0 g    DO .data»·000001f4  Base        file_name_del

4b023944 g    DO .bss»··00000004  Base        uart_logging_proc

4af46004 g    DF .text»·00000084  Base        DiagSvc_Malloc_Exit

4af4d588 g    DO .data»·00001388  Base        output_dir

4af427d0 g    DF .text»·00000170  Base        diag_event_stream_config

4af4068c g    DF .text»·000001d8  Base        Diag_LSM_DeInit

4af44e70 g    DF .text»·000002b4  Base        diagpkt_tbl_reg

4af42e78 g    DF .text»·00000120  Base        diag_dci_vote_real_time

4b025b94 g    DO .bss»··00000004  Base        kill_thread

4b023948 g    DO .bss»··00000004  Base        count_written_bytes_1

4af44834 g    DF .text»·000000a8  Base        qsr_msg_send

4af434f4 g    DF .text»·000000b4  Base        event_report

4af4f30c g    DO .data»·00000004  Base        diag_fd

4af43488 g    DF .text»·0000006c  Base        event_update_dci_mask

4af42664 g    DF .text»·0000000c  Base        diag_get_dci_support_list

4af437d8 g    DF .text»·000000ac  Base        log_update_mask

4af48598 g    DF .text»·00000314  Base        parse_data_for_qsr4_db_file_op_rsp

4af4d32c g    DO .data»·00000028  Base        file_list_index

4b0238ec g    DO .bss»··00000004  Base        rename_file_names

4af3f694 g    DF .text»·000000c0  Base        diag_register_callback

4af41b84 g    DF .text»·0000018c  Base        diag_lsm_dci_init

4af404c4 g    DF .text»·000000b4  Base        diag_vote_md_real_time_proc

4af442b4 g    DF .text»·000000b4  Base        msg_send_1

4af44368 g    DF .text»·000000bc  Base        msg_send_2

4af44424 g    DF .text»·000000c4  Base        msg_send_3

4af3cf48 g    DF .text»·00000014  Base        diag_is_wakelock_init

4b044b4c g    DO .bss»··00000004  Base        disk_write_hdl

4af3d19c g    DF .text»·00000074  Base        diag_register_socket_cb

4af44c10 g    DF .text»·000000c0  Base        msg_update_mask

4af41974 g    DF .text»·00000014  Base        diag_set_peripheral_mask

4af438d8 g    DF .text»·000000dc  Base        log_alloc

4b044b40 g    DO .bss»··00000004  Base        dci_client_tbl

4af3cd04 g    DF .text»·0000007c  Base        do_mask_sync

4b044b7d g    DO .bss»··00000001  Base        write_qshrink_header

4af4f2e0 g    DO .data»·00000004  Base        fd_uart

4af44af8 g    DF .text»·000000dc  Base        qsr_msg_send_var

4b044b28 g    DO .bss»··00000008  Base        periph_info

4af468c8 g    DF .text»·00000074  Base        diag_logger_exit

4af3fa80 g    DF .text»·000000bc  Base        send_empty_mask

4b023954 g    DO .bss»··00000004  Base        gnDiag_LSM_Event_Initialized

4af459b0 g    DF .text»·00000068  Base        diagpkt_err_rsp

4af46628 g    DF .text»·0000020c  Base        diag_logger_write

4af42a78 g    DF .text»·00000108  Base        diag_get_log_status

4b0449f8 g    DO .bss»··00000030  Base        qsr4_read_db_cond

4b0238e8 g    DO .bss»··00000004  Base        rename_dir_name

4af3cef4 g    DF .text»·00000054  Base        diag_wakelock_destroy

4af42148 g    DF .text»·00000048  Base        diag_register_dci_stream

4af43c1c g    DF .text»·0000000c  Base        log_get_code

4af4f348 g    DO .data.rel.ro.local»····00000120  Base        msg_mask_tbl

4af44bf8 g    DF .text»·00000018  Base        Diag_LSM_Msg_DeInit

4af3d0c4 g    DF .text»·00000084  Base        to_integer

4af48e08 g    DF .fini»·00000000  Base        _fini

4af3d2b8 g    DF .text»·0000011c  Base        diag_get_peripheral_name_from_mask

4b044a80 g    DO .bss»··00000028  Base        count_written_bytes

4af41178 g    DF .text»·0000002c  Base        diag_switch_logging

4af4f2e4 g    DO .data»·00000028  Base        fd_md

</pre>

h3. Logging Service API

This is about sending log messages via the Diag interface.

|_.Function|_.Purpose|

|log_alloc(u16 code, len)|Allocate a buffer + fill header|

|log_shorten(ptr, len)|Shorten the length of a previously allocated buffer|

|log_commit(ptr)|Send the log to diag|

|log_free(ptr)|Free a buffer previously allocated with log_alloc()|

|log_submit(ptr)|Convenience wrapper around log_alloc()/memcpy()/log_commit()|

h3. Diag Consumer Interface

This seems to be about implementing a program that consumes Diag events. You can register to certain events/masks and then receive the related information in call-backs.