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More correct emulation of the power registers. 

(Tested, doesn't seem to break anything)
This commit is contained in:
luigi__ 2009-02-25 21:32:56 +00:00
parent e05df5f15f
commit ba617f9b7e
2 changed files with 41 additions and 4 deletions
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40
desmume/src/wifi.cpp
View File

@ -418,6 +418,8 @@ void WIFI_Init(wifimac_t *wifi)
WIFI_resetRF(&wifi->RF) ;
WIFI_Host_InitSystem() ;
wifi->udpSocket = WIFI_Host_OpenChannel(1) ;
wifi->powerOn = FALSE;
wifi->powerOnPending = FALSE;
}
static void WIFI_RXPutWord(wifimac_t *wifi,u16 val)
@ -507,7 +509,7 @@ void WIFI_write16(wifimac_t *wifi,u32 address, u16 val)
break ;
case REG_WIFI_IE:
wifi->IE.val = val ;
printf("wifi ie write %04X\n", val);
//printf("wifi ie write %04X\n", val);
break ;
case REG_WIFI_IF:
wifi->IF.val &= ~val ; /* clear flagging bits */
@ -528,6 +530,30 @@ void WIFI_write16(wifimac_t *wifi,u32 address, u16 val)
case REG_WIFI_WEPCNT:
wifi->WEP_enable = (val & 0x8000) != 0 ;
break ;
case REG_WIFI_POWERSTATE:
wifi->powerOn = ((val & 0x0002)?TRUE:FALSE);
if(wifi->powerOn) WIFI_triggerIRQ(wifi, 11);
break;
case REG_WIFI_FORCEPS:
if((val & 0x8000) && (!wifi->powerOnPending))
{
BOOL newPower = ((val & 0x0001)?FALSE:TRUE);
if(newPower != wifi->powerOn)
{
if(!newPower)
wifi->powerOn = FALSE;
else
wifi->powerOnPending = TRUE;
}
}
break;
case REG_WIFI_POWERACK:
if((val == 0x0000) && wifi->powerOnPending)
{
wifi->powerOn = TRUE;
wifi->powerOnPending = FALSE;
}
break;
case REG_WIFI_RXRANGEBEGIN:
wifi->RXRangeBegin = val ;
break ;
@ -645,6 +671,12 @@ void WIFI_write16(wifimac_t *wifi,u32 address, u16 val)
case REG_WIFI_AID_HIGH:
wifi->aid = val & 0x07FF ;
break ;
//case 0x36:
//case 0x38:
//case 0x3C:
//case 0x40:
// printf("wifi power reg %03X write %04X\n", address, val);
// break;
default:
// val = 0 ; /* not handled yet */
break ;
@ -687,6 +719,8 @@ u16 WIFI_read16(wifimac_t *wifi,u32 address)
return wifi->IE.val ;
case REG_WIFI_IF:
return wifi->IF.val ;
case REG_WIFI_POWERSTATE:
return ((wifi->powerOn ? 0x0000 : 0x0200) | (wifi->powerOnPending ? 0x0102 : 0x0000));
case REG_WIFI_RFIODATA1:
return WIFI_getRF_DATA(wifi,0) ;
case REG_WIFI_RFIODATA2:
@ -757,10 +791,8 @@ u16 WIFI_read16(wifimac_t *wifi,u32 address)
return wifi->pid ;
case REG_WIFI_AID_HIGH:
return wifi->aid ;
case 0x03C:
return 0x0200;
case 0x214:
return 0x0000;
return 0x0009;
default:
return wifi->ioMem[address >> 1];
}

5
desmume/src/wifi.h
View File

@ -109,6 +109,7 @@
#define REG_WIFI_RFIOBSY 0x180
#define REG_WIFI_RFIOCNT 0x184
#define REG_WIFI_IF_SET 0x21C
#define REG_WIFI_POWERACK 0x2D0
/* WIFI misc constants */
#define WIFI_CHIPID 0x1440 /* emulates "old" wifi chip, new is 0xC340 */
@ -370,6 +371,10 @@ typedef union
/* http://www.akkit.org/info/dswifi.htm#WifiIOMap */
typedef struct
{
/* power */
BOOL powerOn;
BOOL powerOnPending;
/* wifi interrupt handling */
wifiirq_t IE ;
wifiirq_t IF ;