int main(int argc, char *argv[])
{
struct drm_i915_private *dp;
init(&argc, &argv);
devinit();
intel_setup_bios(i915);
if (i915->bios_bin)
intel_parse_bios(i915);
#if defined(VERSION) && VERSION == 36
intel_panel_enable_backlight(i915, 0);
#else
intel_panel_enable_backlight(i915);
#endif
i915_driver_load(i915, (unsigned long)i915->dev_private->info);
/* now walk the connector list, dumping connector type
* and EDID
*/
dp = i915->dev_private;
if (dp->int_lvds_connector) {
if (verbose){
fprintf(stderr, "We have an lvds: \n");
}
}
if (dp->int_edp_connector) {
if (verbose)
fprintf(stderr, "We have an edp: \n");
}
u32 pwm = intel_panel_get_backlight(i915);
printf("pwm %d\n", pwm);
if (argc)
pwm = strtol(argv[0], 0, 0);
printf("new pwm %d\n", pwm);
#if defined(VERSION) && VERSION == 36
intel_panel_enable_backlight(i915, 0);
#else
intel_panel_enable_backlight(i915);
#endif
intel_panel_set_backlight(i915, pwm);
pwm = intel_panel_get_backlight(i915);
printf("pwm at end is %d\n", pwm);
}
static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct opregion_asle *asle = dev_priv->opregion.asle;
u32 max;
if (!(bclp & ASLE_BCLP_VALID))
return ASLE_BACKLIGHT_FAILED;
bclp &= ASLE_BCLP_MSK;
if (bclp > 255)
return ASLE_BACKLIGHT_FAILED;
max = intel_panel_get_max_backlight(dev);
intel_panel_set_backlight(dev, bclp * max / 255);
asle->cblv = (bclp*0x64)/0xff | ASLE_CBLV_VALID;
return 0;
}
static u32 asle_set_backlight(struct drm_device *dev, u32 bclp)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct opregion_asle __iomem *asle = dev_priv->opregion.asle;
u32 max;
DRM_DEBUG_DRIVER("bclp = 0x%08x\n", bclp);
if (!(bclp & ASLE_BCLP_VALID))
return ASLE_BACKLIGHT_FAILED;
bclp &= ASLE_BCLP_MSK;
if (bclp > 255)
return ASLE_BACKLIGHT_FAILED;
max = intel_panel_get_max_backlight(dev);
intel_panel_set_backlight(dev, bclp * max / 255);
asle->cblv = DIV_ROUND_UP(bclp * 100, 255) | ASLE_CBLV_VALID;
return 0;
}