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desmume
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added usec timer, wifi irq requests

This commit is contained in:
mightymax 2007-01-13 19:09:57 +00:00
parent 2ccfbdf116
commit b7185b48b0
2 changed files with 58 additions and 2 deletions
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25
desmume/src/wifi.c
View File

@ -19,6 +19,9 @@
*/
#include "wifi.h"
#include "armcpu.h"
wifimac_t wifiMac ;
/*******************************************************************************
@ -325,4 +328,24 @@ u16 WIFI_read16(wifimac_t *wifi,u32 address)
}
}
wifimac_t wifiMac ;
void WIFI_triggerIRQ(wifimac_t *wifi, u8 irq)
{
/* trigger an irq */
u16 irqBit = 1 << irq ;
if (wifi->IE.val & irqBit)
{
wifi->IF.val |= irqBit ;
NDS_makeARM7Int(24) ; /* cascade it via arm7 wifi irq */
}
}
void WIFI_usTrigger(wifimac_t *wifi)
{
/* a usec (=3F03 cycles) has passed */
if (wifi->usecEnable)
wifi->usec++ ;
if ((wifi->ucmpEnable) && (wifi->ucmp == wifi->usec))
{
WIFI_triggerIRQ(wifi,WIFI_IRQ_TIMEBEACON) ;
}
}

35
desmume/src/wifi.h
View File

@ -25,6 +25,15 @@
extern "C" {
#endif
/* standardize socket interface for linux and windows */
#ifdef WIN32
#include <winsock2.h>
#define socket_t SOCKET
#else
#include <sys/socket.h>
#define socket_t socket
#endif
#include "types.h"
#define REG_WIFI_MODE 0x004
@ -297,6 +306,18 @@ typedef union
u16 val ;
} bbIOCnt_t ;
#define WIFI_IRQ_RECVCOMPLETE 0x0001
#define WIFI_IRQ_SENDCOMPLETE 0x0002
#define WIFI_IRQ_COUNTUP 0x0004
#define WIFI_IRQ_SENDERROR 0x0008
#define WIFI_IRQ_STATCOUNTUP 0x0010
#define WIFI_IRQ_STATACKUP 0x0020
#define WIFI_IRQ_RECVSTART 0x0040
#define WIFI_IRQ_SENDSTART 0x0080
#define WIFI_IRQ_RFWAKEUP 0x0800
#define WIFI_IRQ_TIMEBEACON 0x4000
#define WIFI_IRQ_TIMEPREBEACON 0x8000
/* definition of the irq bitfields for wifi irq's (cascaded at arm7 irq #24) */
typedef union
{
@ -306,7 +327,7 @@ typedef union
/* 1*/ unsigned send_complete:1;
/* 2*/ unsigned recv_countup:1;
/* 3*/ unsigned send_error:1;
/* 4*/ unsigned stat_coutup:1;
/* 4*/ unsigned stat_countup:1;
/* 5*/ unsigned stat_ackup:1;
/* 6*/ unsigned recv_start:1;
/* 7*/ unsigned send_start:1;
@ -342,6 +363,12 @@ typedef struct
u16 aid ;
u16 retryLimit ;
/* timing */
u64 usec ;
BOOL usecEnable ;
u64 ucmp ;
BOOL ucmpEnable ;
/* subchips */
rffilter_t RF ;
bb_t BB ;
@ -364,6 +391,9 @@ typedef struct
u16 CircBufEnd ;
u16 CircBufSkip ;
/* desmume host communication */
socket_t udpSocket ;
} wifimac_t ;
extern wifimac_t wifiMac ;
@ -382,6 +412,9 @@ void WIFI_setBB_DATA(wifimac_t *wifi, u8 val) ;
void WIFI_write16(wifimac_t *wifi,u32 address, u16 val) ;
u16 WIFI_read16(wifimac_t *wifi,u32 address) ;
/* wifimac timing */
void WIFI_usTrigger(wifimac_t *wifi) ;
#ifdef __cplusplus
}
#endif