Maxim Integrated 73M1822/73M1922 Control Module - Manual (Page 3)

UG_1x22_053 73M1822/73M1922 Control Module User Guide
Rev. 1.0 3
Table of Contents
1 Introduction ................................................................................................................................... 7
1.1 Purpose and Scope ................................................................................................................. 7
1.2 Conventions Used in this Guide ............................................................................................... 7
1.3 Acronyms................................................................................................................................. 7
2 Overview ........................................................................................................................................ 8
2.1 Driver Architecture ................................................................................................................... 8
2.2 Functional Overview ................................................................................................................ 9
2.2.1 Event Generation ...................................................................................................... 10
2.2.2 Modem Channel Configuration and Management ...................................................... 10
2.2.3 Line State Analysis via Current and Voltage Measurements....................................... 10
2.2.4 GPIO Support ............................................................................................................ 11
2.2.5 Loopback and Testing Modes .................................................................................... 12
2.2.6 Call Progress Monitor ................................................................................................ 12
2.2.7 Billing Tone Filter....................................................................................................... 12
3 Driver Service Interface ............................................................................................................... 13
3.1 Linux Operating System ......................................................................................................... 13
3.2 Other Operating Systems ....................................................................................................... 13
4 Country Specific Settings ........................................................................................................... 14
5 Modem Events ............................................................................................................................. 15
5.1 M1X22_MDM_EVENT_t ........................................................................................................ 15
5.2 Event Identification................................................................................................................. 16
5.2.1 M1X22_BATTERY_DROPPED ................................................................................. 16
5.2.2 M1X22_BATTERY_FEEDED .................................................................................... 16
5.2.3 M1X22_APOH_DETECT ........................................................................................... 16
5.2.4 M1X22_NOPOH_DETECT ........................................................................................ 17
5.2.5 M1X22_POLARITY_CHG .......................................................................................... 17
5.2.6 M1X22_RING_DETECT ............................................................................................ 17
5.2.7 M1X22_RING_DETECT_END ................................................................................... 18
5.2.8 M1X22_SYNC_LOSS_DETECT ................................................................................ 18
5.2.9 M1X22_OV_DETECT ................................................................................................ 18
5.2.10 M1X22_OI_DETECT ................................................................................................. 19
5.2.11 M1X22_LINE_STATE ................................................................................................ 19
5.2.12 M1X22_DIAL_COMPLETE ........................................................................................ 19
5.2.13 M1X22_DIAL_ABORTED .......................................................................................... 20
5.2.14 M1X22_SYNC_RECOVERED ................................................................................... 20
5.2.15 M1X22_GPIO_INTERRUPT ...................................................................................... 20
6 IOCTL Commands Description ................................................................................................... 21
6.1 Initialization and Configuration IOCTLs................................................................................... 21
6.1.1 M1X22_CH_INIT ....................................................................................................... 22
6.1.2 M1X22_CNTRY_NMBR_GET ................................................................................... 23
6.1.3 M1X22_GET_COUNTRY_CONFIG ........................................................................... 24
6.1.4 M1X22_SET_COUNTRY_CONFIG ........................................................................... 25
6.1.5 M1X22_PHONE_VOLUME_SET ............................................................................... 26
6.1.6 M1X22_SET_SAMPLING_FREQ .............................................................................. 27
6.1.7 M1X22_GET_SAMPLING_FREQ .............................................................................. 28
6.2 Events and Status Service ..................................................................................................... 29
6.2.1 M1X22_RNG_GET .................................................................................................... 29
6.2.2 M1X22_POL_GET .................................................................................................... 30
6.2.3 M1X22_BAT_GET ..................................................................................................... 31
6.2.4 M1X22_POH_GET .................................................................................................... 32
6.2.5 M1X22_EVENT_GET ................................................................................................ 33
6.2.6 M1X22_ERROR_CODE_GET ................................................................................... 34