From 5deb3317cb51ac52de922bb55f8492624018906d Mon Sep 17 00:00:00 2001 From: Roman Yeryomin Date: Thu, 13 Sep 2012 00:40:35 +0300 Subject: Add realtek target files Signed-off-by: Roman Yeryomin --- .../drivers/net/wireless/rtl8192cd/8192cd_dmem.c | 274 +++++++++++++++++++++ 1 file changed, 274 insertions(+) create mode 100644 target/linux/realtek/files/drivers/net/wireless/rtl8192cd/8192cd_dmem.c (limited to 'target/linux/realtek/files/drivers/net/wireless/rtl8192cd/8192cd_dmem.c') diff --git a/target/linux/realtek/files/drivers/net/wireless/rtl8192cd/8192cd_dmem.c b/target/linux/realtek/files/drivers/net/wireless/rtl8192cd/8192cd_dmem.c new file mode 100644 index 000000000..6d2a8d1eb --- /dev/null +++ b/target/linux/realtek/files/drivers/net/wireless/rtl8192cd/8192cd_dmem.c @@ -0,0 +1,274 @@ +/* + * D-MEM supporting module for RTL8190 802.11N wireless NIC on RTL865x platform + * + * $Id: 8192cd_dmem.c,v 1.2 2010/01/19 06:04:03 jimmylin Exp $ + * + * Copyright (c) 2009 Realtek Semiconductor Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include "./8192cd.h" +//#include "./8190n_fastExtDev.h" +#include "./8192cd_cfg.h" + +#ifdef RTL8192CD_VARIABLE_USED_DMEM +#include "./8192cd_dmem.h" + +#define RTL8192CD_MAX_SPEEDUP_STA 2 +#define RTL8192CD_SPEEDUP_PRIV_COUNT 1 + +/* ========================== All variables using D-MEM ========================== */ +static void rtl8192cd_dmem_AID_OBJ_init(void); +static void *rtl8192cd_dmem_AID_OBJ_alloc(void *miscInfo); +static void rtl8192cd_dmem_AID_OBJ_free(void *miscInfo); + +static void rtl8192cd_dmem_pmib_init(void); +static void *rtl8192cd_dmem_pmib_alloc(void *miscInfo); +static void rtl8192cd_dmem_pmib_free(void *miscInfo); + +#ifdef PRIV_STA_BUF + extern struct aid_obj *alloc_sta_obj(void); + extern void free_sta_obj(struct rtl8192cd_priv *priv, struct aid_obj *obj); +#endif + +static _rtl8192cd_dmem_callBack_t _8192cd_dmem_callBack_list[] = +{ + /* ID Init CallBack Allocate CallBack Free CallBack */ + { AID_OBJ, rtl8192cd_dmem_AID_OBJ_init, rtl8192cd_dmem_AID_OBJ_alloc, rtl8192cd_dmem_AID_OBJ_free}, + { PMIB, rtl8192cd_dmem_pmib_init, rtl8192cd_dmem_pmib_alloc, rtl8192cd_dmem_pmib_free}, + /* ==================================================================== */ + { _RTL8192CD_DMEM_ITEM_MAX, NULL, NULL}, +}; + +/* ========================== External APIs of D-MEM module ========================== */ + +/* + Initiation function for DMEM library +*/ +void rtl8192cd_dmem_init( void ) +{ + _rtl8192cd_dmem_callBack_t *ptr; + + ptr = &_8192cd_dmem_callBack_list[0]; + + while ( (ptr->id > _RTL8192CD_DMEM_ITEM_MIN) && + (ptr->id < _RTL8192CD_DMEM_ITEM_MAX)) + { + /* Call the Callback function to decide the memory of allocated */ + if (ptr->initCallBackFunc) + { + ((_dummyFunc_void_void)(ptr->initCallBackFunc))(); + } + + /* Next Entry */ + ptr ++; + } +} + +void *rtl8192cd_dmem_alloc( enum _RTL8192CD_DMEM_ITEM_ID id, void *miscInfo ) +{ + void *retval; + _rtl8192cd_dmem_callBack_t *ptr; + + retval = NULL; + + if ( (id <= _RTL8192CD_DMEM_ITEM_MIN) || + (id >= _RTL8192CD_DMEM_ITEM_MAX)) + { + printk("%s %d : ERROR (%d)\n", __FUNCTION__, __LINE__, id); + goto out; + } + + ptr = &_8192cd_dmem_callBack_list[0]; + + while ( ptr->allcateCallBackFunc ) + { + if ( ptr->id == id ) + { + /* Call the Callback function to decide the memory of allocated */ + retval = ((_dummyFunc_voidStar_voidStar)(ptr->allcateCallBackFunc))(miscInfo); + goto out; + } + /* Next Entry */ + ptr ++; + } + +out: + return retval; +} + +void rtl8192cd_dmem_free( enum _RTL8192CD_DMEM_ITEM_ID id, void *miscInfo ) +{ + _rtl8192cd_dmem_callBack_t *ptr; + + if ( (id <= _RTL8192CD_DMEM_ITEM_MIN) || + (id >= _RTL8192CD_DMEM_ITEM_MAX)) + { + printk("%s %d : ERROR (%d)\n", __FUNCTION__, __LINE__, id); + goto out; + } + + ptr = &_8192cd_dmem_callBack_list[0]; + + while ( ptr->freeCallBackFunc ) + { + if ( ptr->id == id ) + { + /* Call the Callback function to decide the memory of allocated */ + ((_dummyFunc_void_voidStar)(ptr->freeCallBackFunc))(miscInfo); + goto out; + } + /* Next Entry */ + ptr ++; + } + +out: + return; +} + + +/* ========================== Internal APIs for per-variable of D-MEM module ========================== */ + +/* ============================================== + * + * AID_OBJ + * + * + * ============================================== */ +__DRAM_IN_865X struct aid_obj _rtl8192cd_aid_Array[RTL8192CD_MAX_SPEEDUP_STA]; +void *_rtl8192cd_aid_externalMem_Array[NUM_STAT]; + +static void rtl8192cd_dmem_AID_OBJ_init(void) +{ + memset(_rtl8192cd_aid_Array, 0, sizeof(struct aid_obj) * RTL8192CD_MAX_SPEEDUP_STA); + memset(_rtl8192cd_aid_externalMem_Array, 0, sizeof(_rtl8192cd_aid_externalMem_Array)); +} + +static void *rtl8192cd_dmem_AID_OBJ_alloc(void *miscInfo) +{ + /* For AID_OBJ : miscInfo would be [unsigned int *] to decision the index of aidarray to allocate */ + unsigned int index = *((unsigned int*)miscInfo); + + if ( (index < 0) || + (index >= NUM_STAT)) + { + printk("%s %d : ERROR ( Index : %d )\n", __FUNCTION__, __LINE__, index); + return NULL; + } + + /* Allocate from external memory */ + if ( index >= RTL8192CD_MAX_SPEEDUP_STA ) + { +#ifdef PRIV_STA_BUF + _rtl8192cd_aid_externalMem_Array[index] = alloc_sta_obj(); +#else + _rtl8192cd_aid_externalMem_Array[index] = kmalloc(sizeof(struct aid_obj), GFP_ATOMIC); +#endif + if (_rtl8192cd_aid_externalMem_Array[index] == NULL) + { + printk("%s %d : Error : Allocation FAILED!\n", __FUNCTION__, __LINE__); + return NULL; + } + return _rtl8192cd_aid_externalMem_Array[index]; + } + + memset(&(_rtl8192cd_aid_Array[index]), 0, sizeof(struct aid_obj)); + + return (void*)(&(_rtl8192cd_aid_Array[index])); +} + +static void rtl8192cd_dmem_AID_OBJ_free(void *miscInfo) +{ + /* For AID_OBJ : miscInfo would be [unsigned int *] to decision the index of aidarray to free */ + unsigned int index = *((unsigned int*)miscInfo); + + if ( (index < 0) || + (index >= NUM_STAT)) + { + printk("%s %d : ERROR ( Index : %d )\n", __FUNCTION__, __LINE__, index); + return; + } + + /* Free memory to external memory module */ + if ( index >= RTL8192CD_MAX_SPEEDUP_STA ) + { + if ( _rtl8192cd_aid_externalMem_Array[index] ) + { +#ifdef PRIV_STA_BUF + free_sta_obj(NULL, _rtl8192cd_aid_externalMem_Array[index]); +#else + kfree(_rtl8192cd_aid_externalMem_Array[index]); +#endif + _rtl8192cd_aid_externalMem_Array[index] = NULL; + } + + return; + } + + memset(&(_rtl8192cd_aid_Array[index]), 0, sizeof(struct aid_obj)); +} + + +/* =================== The following variable are mapped to PRIV =================== */ + +/* ============================================== + * + * PMIB + * + * + * ============================================== */ +__DRAM_IN_865X struct wifi_mib _rtl8192cd_pmib[RTL8192CD_SPEEDUP_PRIV_COUNT]; +int _rtl8192cd_pmib_usageMap[RTL8192CD_SPEEDUP_PRIV_COUNT]; + +static void rtl8192cd_dmem_pmib_init(void) +{ + memset(_rtl8192cd_pmib_usageMap, 0, sizeof(int) * RTL8192CD_SPEEDUP_PRIV_COUNT); + memset(_rtl8192cd_pmib, 0, sizeof(struct wifi_mib) * RTL8192CD_SPEEDUP_PRIV_COUNT); +} + +static void *rtl8192cd_dmem_pmib_alloc(void *miscInfo) +{ + int idx ; + + /* miscInfo is useless */ + for ( idx = 0 ; idx < RTL8192CD_SPEEDUP_PRIV_COUNT ; idx ++ ) + { + if ( _rtl8192cd_pmib_usageMap[idx] == 0 ) + { /* Unused entry : use it */ + _rtl8192cd_pmib_usageMap[idx] = 1; + memset(&(_rtl8192cd_pmib[idx]), 0, sizeof(struct wifi_mib)); + return &(_rtl8192cd_pmib[idx]); + } + } + + /* Allocate from externel memory if speedup PMIB is exhausted */ + return kmalloc(sizeof(struct wifi_mib), GFP_ATOMIC); + +} + +static void rtl8192cd_dmem_pmib_free(void *miscInfo) +{ + int idx; + + /* miscInfo is pointed to the address of PMIB to free */ + + /* Free PMIB if it is speeded up by DMEM */ + for ( idx = 0 ; idx < RTL8192CD_SPEEDUP_PRIV_COUNT ; idx ++ ) + { + if ( (unsigned int)(&(_rtl8192cd_pmib[idx])) == (unsigned int)miscInfo ) + { /* Entry is found : free it */ + memset(&(_rtl8192cd_pmib[idx]), 0, sizeof(struct wifi_mib)); + _rtl8192cd_pmib_usageMap[idx] = 0; + return; + } + } + + /* It would be allocated from external memory: kfree it */ + kfree(miscInfo); + +} +#endif // RTL8192CD_VARIABLE_USED_DMEM + -- cgit v1.2.3