1 files changed, 127 insertions, 0 deletions
diff --git a/libdha/sysdep/pci_linux.c b/libdha/sysdep/pci_linux.c
index e53ae20721..ad9715b2d8 100644
--- a/libdha/sysdep/pci_linux.c
+++ b/libdha/sysdep/pci_linux.c
@@ -20,8 +20,59 @@ int dhahelper_initialized = 0;
 int dhahelper_fd = 0;
 #endif
 
+#ifdef CONFIG_SVGAHELPER
+#include <svgalib_helper.h>
+#ifdef __linux__
+#include <linux/ioctl.h>
+#endif
+#include <fcntl.h>
+int svgahelper_initialized = 0;
+int svgahelper_fd = 0;
+
+static int pci_config_type(void)
+{
+    return 1;
+}
+
+static long pci_config_read_long(
+          unsigned char bus,
+          unsigned char dev,
+          int func, 
+          unsigned cmd)
+{
+    unsigned long config_cmd;
+    pcic_t p;
+    
+    p.address = cmd;
+    p.pcipos = (bus << 8) | dev | (func << 5);
+    
+    if (ioctl(svgahelper_fd, SVGALIB_HELPER_IOCGPCIINL, &p))
+	return -1;
+
+    return p.val;
+}
+
+static int pci_get_vendor(
+          unsigned char bus,
+          unsigned char dev,
+          int func)
+{
+    return pci_config_read_long(bus, dev, func, 0);
+}
+#endif
+
 static __inline__ int enable_os_io(void)
 {
+#ifdef CONFIG_SVGAHELPER
+    svgahelper_fd = open(DEV_SVGA, O_RDWR);
+    if (svgahelper_fd > 0)
+    {
+	svgahelper_initialized = 1;
+	return(0);
+    }
+    svgahelper_initialized = -1;
+#endif
+
 #ifdef CONFIG_DHAHELPER
     dhahelper_fd = open("/dev/dhahelper", O_RDWR);
     if (dhahelper_fd > 0)
@@ -43,6 +94,11 @@ static __inline__ int enable_os_io(void)
 
 static __inline__ int disable_os_io(void)
 {
+#ifdef CONFIG_SVGAHELPER
+    if (svgahelper_initialized == 1)
+	close(svgahelper_fd);
+    else
+#endif
 #ifdef CONFIG_DHAHELPER
     if (dhahelper_initialized == 1)
 	close(dhahelper_fd);
@@ -56,3 +112,74 @@ static __inline__ int disable_os_io(void)
 #endif    
     return(0);
 }
+
+#if (defined(__powerpc__) || defined(__sparc__) || defined(__sparc64__)) \
+    && defined(__linux__) && !defined(CONFIG_SVGAHELPER)
+#define CONFIG_PCI_LINUX_PROC
+#endif
+
+#if defined(CONFIG_PCI_LINUX_PROC)
+static int pci_config_type( void ) { return 1; }
+
+/* pci operations for (powerpc) Linux 
+   questions, suggestions etc: 
+   mplayer-dev-eng@mplayerhq.hu, colin@colino.net*/
+#include <fcntl.h>
+//#include <sys/io.h>
+#include <linux/pci.h>
+#include "../../bswap.h"
+
+static int pci_get_vendor(
+          unsigned char bus,
+          unsigned char dev,
+          int func)
+{
+    int retval;
+    char path[100];
+    int fd;
+    short vendor, device;
+    sprintf(path,"/proc/bus/pci/%02d/%02x.0", bus, dev);
+    fd = open(path,O_RDONLY|O_SYNC);
+    if (fd == -1) {
+	    retval=0xFFFF;
+    }
+    else if (pread(fd, &vendor, 2, PCI_VENDOR_ID) == 2 &&
+             pread(fd, &device, 2, PCI_DEVICE_ID) == 2) {
+	    vendor = le2me_16(vendor);
+	    device = le2me_16(device);
+	    retval = vendor + (device<<16); /*no worries about byte order, 
+	    				      all ppc are bigendian*/
+    } else {
+	    retval = 0xFFFF;
+    }   
+    if (fd > 0) {
+	    close(fd);
+    }
+    return retval;
+}
+
+static long pci_config_read_long(
+          unsigned char bus,
+          unsigned char dev,
+          int func, 
+          unsigned cmd)
+{
+    long retval;
+    char path[100];
+    int fd;
+    sprintf(path,"/proc/bus/pci/%02d/%02x.0", bus, dev);
+    fd = open(path,O_RDONLY|O_SYNC);
+    if (fd == -1) {
+	    retval=0;
+    }
+    else if (pread(fd, &retval, 4, cmd) == 4) {
+	    retval = le2me_32(retval);
+    } else {
+	    retval = 0;
+    }   
+    if (fd > 0) {
+	    close(fd);
+    }
+    return retval;
+}
+#endif