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authorAkinobu Mita <akinobu.mita@gmail.com>2006-12-08 05:36:26 -0500
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-08 11:28:40 -0500
commit1c6676825fe4cc03a71f253fc3e16ec17c6a3195 (patch)
treee4d8b21dc6cc3df4f5c1482a0c546ffadb61f748 /drivers/video/riva/fbdev.c
parent906d66df18faa4aac8d898ae6920d1014694a932 (diff)
[PATCH] video: use bitrev8
Use bitrev8 for nvidiafb, rivafb, and tgafb drivers Cc: Antonino Daplas <adaplas@pol.net> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video/riva/fbdev.c')
-rw-r--r--drivers/video/riva/fbdev.c44
1 files changed, 5 insertions, 39 deletions
diff --git a/drivers/video/riva/fbdev.c b/drivers/video/riva/fbdev.c
index a433cc78ef90..c6f86859399c 100644
--- a/drivers/video/riva/fbdev.c
+++ b/drivers/video/riva/fbdev.c
@@ -40,6 +40,7 @@
40#include <linux/init.h> 40#include <linux/init.h>
41#include <linux/pci.h> 41#include <linux/pci.h>
42#include <linux/backlight.h> 42#include <linux/backlight.h>
43#include <linux/bitrev.h>
43#ifdef CONFIG_MTRR 44#ifdef CONFIG_MTRR
44#include <asm/mtrr.h> 45#include <asm/mtrr.h>
45#endif 46#endif
@@ -521,48 +522,13 @@ static inline unsigned char MISCin(struct riva_par *par)
521 return (VGA_RD08(par->riva.PVIO, 0x3cc)); 522 return (VGA_RD08(par->riva.PVIO, 0x3cc));
522} 523}
523 524
524static u8 byte_rev[256] = {
525 0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
526 0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
527 0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
528 0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
529 0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
530 0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
531 0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
532 0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
533 0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
534 0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
535 0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
536 0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
537 0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
538 0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
539 0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
540 0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
541 0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
542 0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
543 0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
544 0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
545 0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
546 0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
547 0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
548 0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
549 0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
550 0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
551 0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
552 0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
553 0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
554 0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
555 0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
556 0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
557};
558
559static inline void reverse_order(u32 *l) 525static inline void reverse_order(u32 *l)
560{ 526{
561 u8 *a = (u8 *)l; 527 u8 *a = (u8 *)l;
562 *a = byte_rev[*a], a++; 528 a[0] = bitrev8(a[0]);
563 *a = byte_rev[*a], a++; 529 a[1] = bitrev8(a[1]);
564 *a = byte_rev[*a], a++; 530 a[2] = bitrev8(a[2]);
565 *a = byte_rev[*a]; 531 a[3] = bitrev8(a[3]);
566} 532}
567 533
568/* ------------------------------------------------------------------------- * 534/* ------------------------------------------------------------------------- *