FreeCalypso > hg > fc-tourmaline
view src/cs/services/atp/atp_uart_api.c @ 303:f76436d19a7a default tip
!GPRS config: fix long-standing AT+COPS chance hanging bug
There has been a long-standing bug in FreeCalypso going back years:
sometimes in the AT command bring-up sequence of an ACI-only MS,
the AT+COPS command would produce only a power scan followed by
cessation of protocol stack activity (only L1 ADC traces), instead
of the expected network search sequence. This behaviour was seen
in different FC firmware versions going back to Citrine, and seemed
to follow some law of chance, not reliably repeatable.
This bug has been tracked down and found to be specific to !GPRS
configuration, stemming from our TCS2/TCS3 hybrid and reconstruction
of !GPRS support that was bitrotten in TCS3.2/LoCosto version.
ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3
version and had to be pulled from TCS2 - but as it turns out,
there is a new field in the MMR_REG_REQ primitive that needs to be
set correctly, and that psa_mms.c module is the place where this
initialization needed to be added.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 08 Jun 2023 08:23:37 +0000 |
| parents | 4e78acac3d88 |
| children |
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/********************************************************************************/ /* */ /* File Name: atp_uart_api.c */ /* */ /* Purpose: This file contains the external functions related to */ /* the ATP-UART interface. */ /* */ /* Note: None. */ /* */ /* Revision History: */ /* 10/04/01 Pascal Pompei */ /* - Create. */ /* */ /* (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved. */ /* */ /********************************************************************************/ #include "atp/atp_uart_i.h" #include "rvm/rvm_use_id_list.h" /********************************************************************************/ /* */ /* Function Name: atp_uart_open_com_port */ /* */ /* Purpose: This function instructs the ATP-UART interface to open */ /* the COM port. */ /* */ /* Input Parameters: */ /* com_port - Contains the COM port number. */ /* baud_rate - Contains the baud rate (in bits per second). */ /* */ /* Output Parameters: None. */ /* */ /* Global Parameters: None. */ /* */ /* Note: None. */ /* */ /* Revision History: */ /* 10/04/01 Pascal Pompei */ /* - Create. */ /* */ /********************************************************************************/ T_ATP_UART_ERROR_CODES atp_uart_open_com_port (T_ATP_UART_COM_PORT com_port, T_ATP_UART_BAUD_RATE baud_rate) { /* Declare a local variable. */ T_ATP_UART_OPEN_COM_PORT *open_com_port_p = NULL; /******************** atp_uart_open_com_port function begins ********************/ /* Allocate memory required to instruct the ATP-UART interface to open the */ /* COM port. If insufficient resources, then report an internal memory */ /* error and abort. */ if (rvf_get_buf (gbl_atp_uart_ctrl_blk_p->mb_id, \ sizeof (T_ATP_UART_OPEN_COM_PORT), \ (T_RVF_BUFFER **) (&open_com_port_p)) == RVF_RED) { rvf_send_trace (" ATP-UART (api). Insufficient resources ", 41, NULL_PARAM, RV_TRACE_LEVEL_WARNING, ATP_USE_ID); return (RV_MEMORY_ERR); } /* Fill the 'ATP-UART Open COM Port' header up. */ (open_com_port_p->os_header).msg_id = ATP_UART_OPEN_COM_PORT; (open_com_port_p->os_header).src_addr_id = RVF_INVALID_ADDR_ID; (open_com_port_p->os_header).callback_func = NULL; /* Fill the 'ATP-UART Open COM Port' payload up. */ open_com_port_p->com_port = com_port; open_com_port_p->baud_rate = baud_rate; /* Send the 'ATP-UART Open COM Port' notification to the ATP-UART */ /* interface. */ return (rvf_send_msg (gbl_atp_uart_ctrl_blk_p->addr_id, \ open_com_port_p)); } /******************* End of atp_uart_open_com_port function *******************/ /********************************************************************************/ /* */ /* Function Name: atp_uart_start_gsm */ /* */ /* Purpose: This function instructs the ATP-UART interface to */ /* initiate using the GSM protocol stack. */ /* */ /* Input Parameters: None. */ /* */ /* Output Parameters: None. */ /* */ /* Global Parameters: None. */ /* */ /* Note: The GSM protocol stack is initialized by invoking the */ /* following AT commands: */ /* AT+CFUN=1 : Set Phone Functionality (Full), */ /* AT+COPS=0 : Operator Selection. */ /* */ /* Revision History: */ /* 09/26/02 Pascal Pompei */ /* - Create. */ /* */ /********************************************************************************/ T_ATP_UART_ERROR_CODES atp_uart_start_gsm (void) { /* Declare a local variable. */ T_ATP_UART_START_GSM *start_gsm_p = NULL; /********************** atp_uart_start_gsm function begins **********************/ /* Allocate memory required to instruct the ATP-UART interface to initiate */ /* using the GSM protocol stack. If insufficient resources, then report an */ /* internal memory error and abort. */ if (rvf_get_buf (gbl_atp_uart_ctrl_blk_p->mb_id, \ sizeof (T_ATP_UART_START_GSM), \ (T_RVF_BUFFER **) (&start_gsm_p)) == RVF_RED) { rvf_send_trace (" ATP-UART (api). Insufficient resources ", 41, NULL_PARAM, RV_TRACE_LEVEL_WARNING, ATP_USE_ID); return (RV_MEMORY_ERR); } /* Fill the 'ATP-UART Start GSM' header up. */ (start_gsm_p->os_header).msg_id = ATP_UART_START_GSM; (start_gsm_p->os_header).src_addr_id = RVF_INVALID_ADDR_ID; (start_gsm_p->os_header).callback_func = NULL; /* Send the 'ATP-UART Start GSM' notification to the ATP-UART interface. */ return (rvf_send_msg (gbl_atp_uart_ctrl_blk_p->addr_id, \ start_gsm_p)); } /********************* End of atp_uart_start_gsm function *********************/