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Fixed 'cat' problems 

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@3264 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
nick 2001-12-02 10:44:46 +00:00
parent a3a9c8b77e
commit fe109bf289
2 changed files with 38 additions and 23 deletions
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6
drivers/radeon/README
View File

@ -53,10 +53,8 @@ Example (disables adaptive deinterlacing):
echo "deinterlace=off">/dev/radeon_vid
To know more about these parameters - try read /dev/radeon_vid file ;)
Note: don't use 'cat' since it can't detect EOF during reading such files.
(I use midnight commander for that ;)
or try this:
head -n 20 /dev/radeon_vid
For example:
cat /dev/radeon_vid
List of parameters:
~~~~~~~~~~~~~~~~~~~

55
drivers/radeon/radeon_vid.c
View File

@ -190,7 +190,10 @@ static uint8_t *radeon_mmio_base = 0;
static uint32_t radeon_mem_base = 0;
static int32_t radeon_overlay_off = 0;
static uint32_t radeon_ram_size = 0;
#define PARAM_BUFF_SIZE 4096
static uint8_t *radeon_param_buff = NULL;
static uint32_t radeon_param_buff_size=0;
static uint32_t radeon_param_buff_len=0; /* real length of buffer */
static mga_vid_config_t radeon_config;
#undef DEBUG
@ -776,29 +779,40 @@ static int radeon_vid_config_card(void)
#define PARAM_DEINTERLACE "deinterlace="
#define PARAM_DEINTERLACE_PATTERN "deinterlace_pattern="
static ssize_t radeon_vid_read(struct file *file, char *buf, size_t count, loff_t *ppos)
static void radeon_param_buff_fill( void )
{
unsigned len,saturation;
long brightness;
brightness = besr.brightness;
saturation = besr.saturation;
len = 0;
len += sprintf(&buf[len],"Interface version: %04X\nDriver version: %s\n",MGA_VID_VERSION,RADEON_VID_VERSION);
len += sprintf(&buf[len],"Chip: %s\n",ati_card_ids[detected_chip].name);
len += sprintf(&buf[len],"Memory: %p:%x\n",radeon_mem_base,radeon_ram_size*0x100000);
len += sprintf(&buf[len],"MMIO: %p\n",radeon_mmio_base);
len += sprintf(&buf[len],"Overlay offset: %p\n",radeon_overlay_off);
len += sprintf(&buf[len],"Last fourcc: %s\n\n",fourcc_format_name(besr.fourcc));
len += sprintf(&buf[len],"Configurable stuff:\n");
len += sprintf(&buf[len],"~~~~~~~~~~~~~~~~~~~\n");
len += sprintf(&buf[len],PARAM_DOUBLE_BUFF"%s\n",besr.double_buff?"on":"off");
len += sprintf(&buf[len],PARAM_BRIGHTNESS"%i\n",brightness);
len += sprintf(&buf[len],PARAM_SATURATION"%u\n",saturation);
len += sprintf(&buf[len],PARAM_COLOUR_KEY"%X\n",besr.graphics_key_clr);
len += sprintf(&buf[len],PARAM_DEINTERLACE"%s\n",besr.deinterlace_on?"on":"off");
len += sprintf(&buf[len],PARAM_DEINTERLACE_PATTERN"%X\n",besr.deinterlace_pattern);
ppos += len;
return len;
len += sprintf(&radeon_param_buff[len],"Interface version: %04X\nDriver version: %s\n",MGA_VID_VERSION,RADEON_VID_VERSION);
len += sprintf(&radeon_param_buff[len],"Chip: %s\n",ati_card_ids[detected_chip].name);
len += sprintf(&radeon_param_buff[len],"Memory: %p:%x\n",radeon_mem_base,radeon_ram_size*0x100000);
len += sprintf(&radeon_param_buff[len],"MMIO: %p\n",radeon_mmio_base);
len += sprintf(&radeon_param_buff[len],"Overlay offset: %p\n",radeon_overlay_off);
len += sprintf(&radeon_param_buff[len],"Last fourcc: %s\n\n",fourcc_format_name(besr.fourcc));
len += sprintf(&radeon_param_buff[len],"Configurable stuff:\n");
len += sprintf(&radeon_param_buff[len],"~~~~~~~~~~~~~~~~~~~\n");
len += sprintf(&radeon_param_buff[len],PARAM_DOUBLE_BUFF"%s\n",besr.double_buff?"on":"off");
len += sprintf(&radeon_param_buff[len],PARAM_BRIGHTNESS"%i\n",brightness);
len += sprintf(&radeon_param_buff[len],PARAM_SATURATION"%u\n",saturation);
len += sprintf(&radeon_param_buff[len],PARAM_COLOUR_KEY"%X\n",besr.graphics_key_clr);
len += sprintf(&radeon_param_buff[len],PARAM_DEINTERLACE"%s\n",besr.deinterlace_on?"on":"off");
len += sprintf(&radeon_param_buff[len],PARAM_DEINTERLACE_PATTERN"%X\n",besr.deinterlace_pattern);
radeon_param_buff_len = len;
}
static ssize_t radeon_vid_read(struct file *file, char *buf, size_t count, loff_t *ppos)
{
uint32_t size;
if(!radeon_param_buff) return -ESPIPE;
if(!(*ppos)) radeon_param_buff_fill();
if(*ppos >= radeon_param_buff_len) return 0;
size = min(count,radeon_param_buff_len-(uint32_t)(*ppos));
memcpy(buf,radeon_param_buff,size);
*ppos += size;
return size;
}
static ssize_t radeon_vid_write(struct file *file, const char *buf, size_t count, loff_t *ppos)
@ -848,6 +862,7 @@ static ssize_t radeon_vid_write(struct file *file, const char *buf, size_t count
dpat=simple_strtol(&buf[strlen(PARAM_DEINTERLACE_PATTERN)],NULL,16);
OUTREG(OV0_DEINTERLACE_PATTERN, dpat);
}
else count = -EIO;
radeon_vid_preset();
return count;
}
@ -947,6 +962,8 @@ static int radeon_vid_initialize(void)
unregister_chrdev(RADEON_VID_MAJOR, "radeon_vid");
return -EINVAL;
}
radeon_param_buff = kmalloc(PARAM_BUFF_SIZE,GFP_KERNEL);
if(radeon_param_buff) radeon_param_buff_size = PARAM_BUFF_SIZE;
radeon_vid_save_state();
radeon_vid_make_default();
radeon_vid_preset();
@ -963,7 +980,7 @@ void cleanup_module(void)
radeon_vid_restore_state();
if(radeon_mmio_base)
iounmap(radeon_mmio_base);
kfree(radeon_param_buff);
RTRACE(RVID_MSG"Cleaning up module\n");
unregister_chrdev(RADEON_VID_MAJOR, "radeon_vid");
}