geode: DEV_GET_POS call done right

git-svn-id: svn://kolibrios.org@1695 a494cfbc-eb01-0410-851d-a64ba20cac60

drivers/audio/a5536/geode.c

@@ -48,6 +48,7 @@ typedef struct
     int     CurrentPowerState;
 
     addr_t  buffer;
+    addr_t  buffer_dma;
     addr_t  prd_dma;
 
     addr_t  irq_line;
@@ -245,6 +246,7 @@ Bool init_device()
 
     addr_t buffer = geode.buffer;
     addr_t dma = GetPgAddr(geode.buffer);
+    geode.buffer_dma = dma;
 
     geode.prd_dma  = (((addr_t)prd_tab) & 4095) + GetPgAddr((void*)prd_tab);
 
@@ -478,6 +480,8 @@ u32_t drvEntry(int action, char *cmdline)
         return 0;
     }
 
+    printf("AMD Geode CS5536 audio driver\n");
+
     if( FindPciDevice() == FALSE)
     {
         dbgprintf("Device not found\n");
@@ -545,7 +549,10 @@ int __stdcall srv_sound(ioctl_t *io)
         case DEV_GET_POS:
             if(io->out_size==4)
             {
-                *outp = ctrl_read_32(0x60)>>2;
+                u32_t  dma;
+                dma = ctrl_read_32(0x60);
+                dma-= geode.buffer_dma;
+                *outp = (dma & 16383)>>2;
                 return 0;
             }
             break;

drivers/audio/a5536/geode.lk

@@ -1,23 +0,0 @@
-IMP
-    _KernelAlloc       core.KernelAlloc,
-    _KernelFree        core.KernelFree,
-    _CommitPages       core.CommitPages,
-    _MapIoMem          core.MapIoMem,
-    _GetPgAddr         core.GetPgAddr,
-    _CreateRingBuffer  core.CreateRingBuffer,
-    _PciApi            core.PciApi,
-    _PciRead8          core.PciRead8,
-    _PciRead16         core.PciRead16,
-    _PciRead32         core.PciRead32,
-    _PciWrite8         core.PciWrite8,
-    _PciWrite16        core.PciWrite16,
-    _PciWrite32        core.PciWrite32,
-    _RegService        core.RegService,
-    _AttachIntHandler  core.AttachIntHandler,
-    _SysMsgBoardStr    core.SysMsgBoardStr,
-    _Delay             core.Delay
-
-
-FIL geode.obj,
-    vsprintf.obj,
-    icompute.obj

drivers/audio/a5536/makefile

@@ -2,7 +2,7 @@
 CC = gcc
 FASM = e:/fasm/fasm.exe
 CFLAGS = -c -O2 -fomit-frame-pointer -fno-builtin-printf 
-LDFLAGS = -nostdlib -shared -s -Map usb.map --image-base 0\
+LDFLAGS = -nostdlib -shared -s -Map geode.map --image-base 0\
 	  --file-alignment 512 --section-alignment 4096
 
 DEFINES	 = -D__KERNEL__ -DCONFIG_X86_32