I had a problem with usb2vga and ppc linux.
The background of the console greens, and the font is not displayed.
This patch can be normally displayed by the Big endian machine.
Moreover, because KAIREN's usb2vga has two or more devices id, it adds it.
Signed-off-by: Mitsuhiro Koga <[EMAIL PROTECTED]>
Cc: linux-usb-devel@lists.sourceforge.net
Cc: [EMAIL PROTECTED]
---
drivers/usb/misc/sisusbvga/sisusb.c | 27 ++++++++++++++++++++++++++-
1 files changed, 26 insertions(+), 1 deletions(-)
--- a/drivers/usb/misc/sisusbvga/sisusb.c
+++ b/drivers/usb/misc/sisusbvga/sisusb.c
@@ -76,6 +76,16 @@
DEFINE_MUTEX(disconnect_mutex);
+#ifdef __BIG_ENDIAN
+static void
+correct_endianness_buffer(u16* data, const int length)
+{
+ int i;
+ for (i = 0; i < length; i++)
+ *(data+i) = cpu_to_le16(*(data+i));
+}
+#endif
+
static void
sisusb_free_buffers(struct sisusb_usb_data *sisusb)
{
@@ -411,6 +421,10 @@
memcpy(buffer, kernbuffer, passsize);
kernbuffer += passsize;
+#ifdef __BIG_ENDIAN
+ if ((len & 3) == 0)
+ correct_endianness_buffer((u16 *)buffer, thispass/2);
+#endif
}
retry = 5;
@@ -906,9 +920,13 @@
if (userbuffer) {
if (get_user(swap32, (u32 __user *)userbuffer))
return -EFAULT;
- } else
+ } else {
swap32 = *((u32 *)kernbuffer);
+#ifdef __BIG_ENDIAN
+ swap32 = ((swap32 << 16) & 0xffff0000) | ((swap32 >>
16) & 0xffff);
+#endif
+ }
ret = sisusb_write_memio_long(sisusb,
SISUSB_TYPE_MEM,
addr,
@@ -1259,7 +1277,11 @@
userbuffer += 4;
} else {
+#ifdef __BIG_ENDIAN
+ *((u32 *)kernbuffer) = ((swap32 << 16) &
0xffff0000) | ((swap32 >> 16) & 0xffff);
+#else
*((u32 *)kernbuffer) = swap32;
+#endif
kernbuffer += 4;
}
addr += 4;
@@ -3435,6 +3457,9 @@
static struct usb_device_id sisusb_table [] = {
{ USB_DEVICE(0x0711, 0x0900) },
+ { USB_DEVICE(0x0711, 0x0901) },
+ { USB_DEVICE(0x0711, 0x0902) },
+ { USB_DEVICE(0x0711, 0x0920) },
{ USB_DEVICE(0x182d, 0x021c) },
{ USB_DEVICE(0x182d, 0x0269) },
{ }
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