1 framebuffer driver for ATI Radeon chipset video boards
2 ======================================================
4 These files are replacement for linux-2.4.x-ac.y drivers.
5 To use this driver you should have at least linux-2.4.5-ac.1
6 then simply replace linux/drivers/video/radeon* with files
8 Note: since linux-2.4.10 this driver was moved from -ac to
13 Simply type two commands in this directory:
17 Anyway you should have 'framebuffer support' compiled into linux-kernel
18 and at least '8bpp packed pixel support' compiled and installed as module.
19 (But if you plan to use this module with MPlayer you also should have
20 16bpp, 24bpp and 32bpp pixel support compiled as modules).
26 It was designed for MPlayer and currently can be used only by MPlayer.
27 It's RGB-YUV BES for Radeon cards (althrough there is experimental
28 support for Rage128 / Rage128pro chips).
30 rage128_vid is contained within radeon_vid.c. As for a Rage128 framebuffer -
31 use the one from your Linux distribution.
36 Simply type two commands in this directory:
43 Currently there is only one way to use ATI's drivers:
44 mplayer -vo vesa:lvo:/dev/radeon_vid -<your vesa's options> filename
46 mplayer -vo vesa:lvo:/dev/rage128_vid -<your vesa's options> filename
48 For YV12 formats you can use also:
49 mplayer -vo mga:/dev/radeon_vid -<your mga's option> filename
51 but in this case you should load at least radeonfb driver from
57 You can tune some parameters with the following trick:
58 echo "parameter=value" > /dev/radeon_vid
59 Example (disables adaptive deinterlacing):
60 echo "deinterlace=off" > /dev/radeon_vid
62 To know more about these parameters - try reading the /dev/radeon_vid file ;)
68 If you have Rage128 chip:
69 brightness=decval (-64:+63) changes brightness
70 saturation=decval (0:+31) changes saturation 0 == grayscale mode
71 else - if you have Radeon:
72 brightness=decval (-1000:+1000) -1000 == black screen
73 saturation=decval (-1000:+1000) -1000 == grayscaled mode
74 contrast=decval (-1000:+1000) -1000 == black screen
75 hue=decval (-1000:+1000) -1000 == +1000 (full circle)
76 all other values are within this range
77 Note: 0 is the default value for every parameter on Radeons.
78 WARNING: This driver violates the rule: "no float in the kernel".
79 So if you have problems then don't use color correction.
81 double_buff=on/off enables/disables double buffering
82 deinterlace=on/off enables/disables adaptive deinterlacing
83 deinterlace_pattern=hexval defines deinterlacing pattern
88 You can use some additional parameters during module loading:
90 modprobe radeon_vid swap_fourcc=1
92 List of driver parameters:
93 ~~~~~~~~~~~~~~~~~~~~~~~~~~
94 mtrr=1/0 Configures MTRR (if available), default = 1.
95 swap_fourcc=1/0 Performs byte swapping of passed fourcc.
96 (It's required for compatibility with -vo mga.)
98 To know more about driver parameters execute:
105 For command line of MPlayer:
106 You can pass only options with can be recognized by vo_vesa driver.
107 (Indeed radeon_vid and rage128_vid are stupid things and can only create
108 video overlay. Mode switching and other adjustments are performed by the
109 vo_vesa driver. This mean that they use the VESA BIOS as graphics server.)
113 This stuff (radeon(rage128)_vid) currently doesn't support any standards.
117 modprobe radeon_vid mtrr=1
118 echo "deinterlace_pattern=F0055555" > /dev/radeon_vid
119 mplayer -vo vesa:lvo:/dev/radeon_vid -fs -zoom -bpp 32 filename