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Add module parameters: contrast and brightness, so when you need those permanently 

adjusted just add lines to /etc/modules or sth.
insmod mga_vid.o mga_brightness=100 mga_contrast=-79


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4729 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
eyck 2002-02-16 19:58:39 +00:00
parent b74f43fb50
commit 5979a71903
1 changed files with 11 additions and 8 deletions
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19
drivers/mga_vid.c
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@ -202,8 +202,6 @@ typedef struct bes_registers_s
//configurable stuff
int brightness;
int contrast;
int blackie;
} bes_registers_t;
@ -248,10 +246,15 @@ static uint32_t mga_ram_size = 0; // how much megabytes videoram we have
static uint32_t mga_top_reserved = 0; // reserved space for console font (matroxfb + fastfont)
static int mga_brightness = 0; // initial brightness
static int mga_contrast = 0; // initial contrast
//static int mga_force_memsize = 0;
MODULE_PARM(mga_ram_size, "i");
MODULE_PARM(mga_top_reserved, "i");
MODULE_PARM(mga_brightness, "i");
MODULE_PARM(mga_contrast, "i");
static struct pci_dev *pci_dev;
@ -744,9 +747,9 @@ switch(config->format){
regs.besglobctl |= (1<<5) + (1<<7);
// brightness ; default is 0x7f;
regs.beslumactl = (regs.brightness << 16);
regs.beslumactl = (mga_brightness << 16);
// contrast:
regs.beslumactl|= ((regs.contrast+0x80)<<0);
regs.beslumactl|= ((mga_contrast+0x80)<<0);
//Setup destination window boundaries
besleft = x > 0 ? x : 0;
@ -1368,8 +1371,8 @@ static void mga_param_buff_fill( void )
len += sprintf(&mga_param_buff[len],"MMIO: %p\n",mga_mmio_base);
len += sprintf(&mga_param_buff[len],"Configurable stuff:\n");
len += sprintf(&mga_param_buff[len],"~~~~~~~~~~~~~~~~~~~\n");
len += sprintf(&mga_param_buff[len],PARAM_BRIGHTNESS"%d\n",regs.brightness);
len += sprintf(&mga_param_buff[len],PARAM_CONTRAST"%d\n",regs.contrast);
len += sprintf(&mga_param_buff[len],PARAM_BRIGHTNESS"%d\n",mga_brightness);
len += sprintf(&mga_param_buff[len],PARAM_CONTRAST"%d\n",mga_contrast);
len += sprintf(&mga_param_buff[len],PARAM_BLACKIE"%s\n",regs.blackie?"on":"off");
mga_param_buff_len = len;
// check boundaries of mga_param_buff before writing to it!!!
@ -1396,7 +1399,7 @@ static ssize_t mga_vid_write(struct file *file, const char *buf, size_t count, l
brightness=simple_strtol(&buf[strlen(PARAM_BRIGHTNESS)],NULL,10);
if (brightness>127 || brightness<-128) { brightness=0;}
// printk(KERN_DEBUG "mga_vid: brightness modified ( %d ) \n",brightness);
regs.brightness=brightness;
mga_brightness=brightness;
} else
if(memcmp(buf,PARAM_CONTRAST,min(count,strlen(PARAM_CONTRAST))) == 0)
{
@ -1404,7 +1407,7 @@ static ssize_t mga_vid_write(struct file *file, const char *buf, size_t count, l
contrast=simple_strtol(&buf[strlen(PARAM_CONTRAST)],NULL,10);
if (contrast>127 || contrast<-128) { contrast=0;}
// printk(KERN_DEBUG "mga_vid: contrast modified ( %d ) \n",contrast);
regs.contrast=contrast;
mga_contrast=contrast;
} else
if(memcmp(buf,PARAM_BLACKIE,min(count,strlen(PARAM_BLACKIE))) == 0)