FreeCalypso > hg > fc-tourmaline
view src/cs/drivers/drv_core/memif/sys_memif.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 |
line wrap: on
line source
/* @(#) nom : sys_memif.c SID: 1.2 date : 05/23/03 */ /* Filename: sys_memif.c */ /* Version: 1.2 */ /****************************************************************************** * WIRELESS COMMUNICATION SYSTEM DEVELOPMENT * * (C) 2002 Texas Instruments France. All rights reserved * * Author : Francois AMAND * * * Important Note * -------------- * * This S/W is a preliminary version. It contains information on a product * under development and is issued for evaluation purposes only. Features * characteristics, data and other information are subject to change. * * The S/W is furnished under Non Disclosure Agreement and may be used or * copied only in accordance with the terms of the agreement. It is an offence * to copy the software in any way except as specifically set out in the * agreement. No part of this document may be reproduced or transmitted in any * form or by any means, electronic or mechanical, including photocopying and * recording, for any purpose without the express written permission of Texas * Instruments Inc. * ****************************************************************************** * * FILE NAME: sys_memif.c * * * PURPOSE: Drivers to be used for ARM memory interface configuration and * control for CALYPSO PLUS. * * * FILE REFERENCES: * * Name IO Description * ------------- -- --------------------------------------------- * * * * EXTERNAL VARIABLES: * * Source: * * Name Type IO Description * ------------- --------------- -- ------------------------------ * * * * EXTERNAL REFERENCES: * * Name Description * ------------------ ------------------------------------------------------- * * * * ABNORMAL TERMINATION CONDITIONS, ERROR AND WARNING MESSAGES: * * * * ASSUMPTION, CONSTRAINTS, RESTRICTIONS: * * * * NOTES: * * * * REQUIREMENTS/FUNCTIONAL SPECIFICATION REFERENCES: * * * * * DEVELOPMENT HISTORY: * * Date Name(s) Version Description * ----------- -------------- ------- ------------------------------------- * 11-Oct-2002 Francois AMAND 0.0.1 First implementation * 25-Feb-2003 G.Leterrier 0.0.2 Modification for reserved bit management * f_memif_init_cs * f_memif_init_api_rhea_ctrl * 26-Feb-2003 G.Leterrier Disable page mode before re-configuration * * ALGORITHM: * * *****************************************************************************/ #include "l1sw.cfg" #include "chipset.cfg" #if (CHIPSET == 12) #include "board.cfg" #if (OP_L1_STANDALONE == 0) #include "main/sys_types.h" #else #include "sys_types.h" #endif #include "sys_memif.h" /****************************************************************************** * * FUNCTION NAME: f_memif_init_cs * Configure the memory features connected on the chip-select cs. * * * ARGUMENT LIST: * * Argument Type IO Description * ------------ ------------------- -- --------------------------------- * d_cs SYS_UWORD8 I Chip-select number * p_cs_config T_MEMIF_CS_CONFIG * I Configuration to apply to the * chip-select. * * RETURN VALUE: None * *****************************************************************************/ void f_memif_init_cs(SYS_UWORD8 d_cs, T_MEMIF_CS_CONFIG *p_cs_config) { SYS_UWORD16 d_conf_csx_reg,d_exws_csx_reg; /* save value of reserved bit */ d_conf_csx_reg = C_MEMIF_CONF_CSX_REG(d_cs); d_conf_csx_reg &= C_MEMIF_CONF_CSX_MASK; d_exws_csx_reg = C_MEMIF_EXWS_CSX_REG(d_cs); d_exws_csx_reg &= C_MEMIF_EXWS_MASK; /* disable page mode before change of configuration */ C_MEMIF_EXWS_CSX_REG(d_cs) &= ~(C_MEMIF_PAGE_MODE_EN); /* * Configure CONF_CSx register */ C_MEMIF_CONF_CSX_REG(d_cs) = (p_cs_config->d_ws << C_MEMIF_CONF_WS_POS) | (p_cs_config->d_dvs << C_MEMIF_CONF_DVS_POS) | (p_cs_config->d_we << C_MEMIF_CONF_WE_POS) | (p_cs_config->d_dc << C_MEMIF_CONF_DC_POS) | (p_cs_config->d_rodc << C_MEMIF_CONF_RODC_POS) | (p_cs_config->d_wrdc << C_MEMIF_CONF_WRDC_POS) | (p_cs_config->d_wws << C_MEMIF_CONF_WWS_POS) | d_conf_csx_reg; /* * Configure EXWS_CSx register */ C_MEMIF_EXWS_CSX_REG(d_cs) = (p_cs_config->d_pme << C_MEMIF_EXWS_PME_POS) | (p_cs_config->d_pms << C_MEMIF_EXWS_PMS_POS) | (p_cs_config->d_pmws << C_MEMIF_EXWS_PMWS_POS) | (p_cs_config->d_wrws << C_MEMIF_EXWS_WRWS_POS) | d_exws_csx_reg; /* * Configure DCCTRL_CSx register */ C_MEMIF_DCCTRL_CSX_REG(d_cs) = (p_cs_config->d_dcecs0 << C_MEMIF_DCCTRL_DCECS0_POS) | (p_cs_config->d_dcecs1 << C_MEMIF_DCCTRL_DCECS1_POS) | (p_cs_config->d_dcecs2 << C_MEMIF_DCCTRL_DCECS2_POS) | (p_cs_config->d_dcecs3 << C_MEMIF_DCCTRL_DCECS3_POS) | (p_cs_config->d_dcecs4 << C_MEMIF_DCCTRL_DCECS4_POS) | (p_cs_config->d_dcecs5 << C_MEMIF_DCCTRL_DCECS5_POS); } /* f_memif_init_cs() */ /****************************************************************************** * * FUNCTION NAME: f_memif_init_api_rhea_ctrl * Configure the API_RHEA_CTRL register. * * * ARGUMENT LIST: * * Argument Type IO Description * ---------- ---------- -- ------------------------------------------- * d_adap0 SYS_UWORD8 I Rhea strobe 0 access size adaptation enable * d_adap1 SYS_UWORD8 I Rhea strobe 1 access size adaptation enable * d_adap_api SYS_UWORD8 I API access size adaptation enable * d_debug SYS_UWORD8 I ARM address debug enable/disable * * * RETURN VALUE: None * *****************************************************************************/ void f_memif_init_api_rhea_ctrl(SYS_UWORD8 d_adap0, SYS_UWORD8 d_adap1, SYS_UWORD8 d_adap_api, SYS_UWORD8 d_debug) { SYS_UWORD16 d_api_rhea_ctrl; d_api_rhea_ctrl = C_MEMIF_API_RHEA_CTRL_REG; d_api_rhea_ctrl &= C_MEMIF_API_RHEA_CTRL_MASK; C_MEMIF_API_RHEA_CTRL_REG = (d_adap0 << C_MEMIF_API_RHEA_CTRL_ADAPT0_POS) | (d_adap1 << C_MEMIF_API_RHEA_CTRL_ADAPT1_POS) | (d_adap_api << C_MEMIF_API_RHEA_CTRL_ADAPTAPI_POS) | (d_debug << C_MEMIF_API_RHEA_CTRL_DEBUG_POS) | d_api_rhea_ctrl; } /* f_memif_init_api_rhea_ctrl() */ /****************************************************************************** * * FUNCTION NAME: f_memif_debug_freeze * Freeze externa memory interface during internal access * * * ARGUMENT LIST: * * Argument Type IO Description * ---------- ---------- -- ------------------------------------------- * * * RETURN VALUE: None * *****************************************************************************/ void f_memif_debug_freeze(void) { F_MEMIF_DEBUG_FREEZE; } /* f_memif_debug_freeze() */ /****************************************************************************** * * FUNCTION NAME: f_memif_du_enable * Enable Debug Unit capture. * * * ARGUMENT LIST: * * Argument Type IO Description * ---------- ---------- -- ------------------------------------------- * * * RETURN VALUE: None * *****************************************************************************/ void f_memif_du_enable(void) { F_MEMIF_DU_ENABLE; } /* f_memif_du_enable() */ /****************************************************************************** * * FUNCTION NAME: f_memif_du_disable * Disable Debug Unit capture. * * * ARGUMENT LIST: * * Argument Type IO Description * ---------- ---------- -- ------------------------------------------- * * * RETURN VALUE: None * *****************************************************************************/ void f_memif_du_disable(void) { F_MEMIF_DU_DISABLE; } /* f_memif_du_disable() */ /****************************************************************************** * * FUNCTION NAME: f_memif_extended_page_mode_enable * Enable Extended Page Mode feature, which locks the CS in active state * when accessing internal memory bus. * * * ARGUMENT LIST: * * Argument Type IO Description * ---------- ---------- -- ------------------------------------------- * * * RETURN VALUE: None * *****************************************************************************/ void f_memif_extended_page_mode_enable(void) { F_MEMIF_ENABLE_EXTENDED_PAGE_MODE; } /* f_memif_extended_page_mode_enable() */ /****************************************************************************** * * FUNCTION NAME: f_memif_shared_sram_allocation * Configure the Shared SRAM allocation. * * * ARGUMENT LIST: * * Argument Type IO Description * ---------------- ----------- -- ------------------------------------ * d_allocation_cfg SYS_UWORD16 I Shared SRAM allocation configuration * * RETURN VALUE: None * *****************************************************************************/ void f_memif_shared_sram_allocation(SYS_UWORD16 d_allocation_cfg) { SYS_UWORD16 d_dspms_reg = C_MEMIF_DSPMS_REG; d_dspms_reg &= ~C_MEMIF_DSPMS_MASK; d_dspms_reg |= (d_allocation_cfg & C_MEMIF_DSPMS_MASK) << C_MEMIF_DSPMS_POS; C_MEMIF_DSPMS_REG = d_dspms_reg; } /* f_memif_shared_sram_allocation() */ /****************************************************************************** * * FUNCTION NAME: f_memif_cs_mode * Configure the chip-select size. * * * ARGUMENT LIST: * * Argument Type IO Description * ---------------- ----------- -- ------------------------------------ * d_cs_mode_cfg SYS_UWORD16 I Chip-select size configuration * * RETURN VALUE: None * *****************************************************************************/ void f_memif_cs_mode(SYS_UWORD16 d_cs_mode_cfg) { SYS_UWORD16 d_ex_ctrl_reg = C_MEMIF_EX_CTRL_REG; d_ex_ctrl_reg &= ~(C_MEMIF_EX_CTRL_CS_MODE_MASK << C_MEMIF_EX_CTRL_CS_MODE_POS); d_ex_ctrl_reg |= (d_cs_mode_cfg & C_MEMIF_EX_CTRL_CS_MODE_MASK) << C_MEMIF_EX_CTRL_CS_MODE_POS; C_MEMIF_EX_CTRL_REG = d_ex_ctrl_reg; } /* f_memif_cs_mode() */ #endif /* (CHIPSET == 12) */