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Diffstat (limited to 'src/uxa/intel_display.c')
-rw-r--r--src/uxa/intel_display.c218
1 files changed, 34 insertions, 184 deletions
diff --git a/src/uxa/intel_display.c b/src/uxa/intel_display.c
index e1b29201..c7c2d7c9 100644
--- a/src/uxa/intel_display.c
+++ b/src/uxa/intel_display.c
@@ -43,6 +43,7 @@
#include "intel.h"
#include "intel_bufmgr.h"
#include "intel_options.h"
+#include "backlight.h"
#include "xf86drm.h"
#include "xf86drmMode.h"
#include "X11/Xatom.h"
@@ -120,9 +121,8 @@ struct intel_output {
int panel_vdisplay;
int dpms_mode;
- const char *backlight_iface;
+ struct backlight backlight;
int backlight_active_level;
- int backlight_max;
xf86OutputPtr output;
struct list link;
};
@@ -139,68 +139,6 @@ crtc_id(struct intel_crtc *crtc)
return crtc->mode_crtc->crtc_id;
}
-#ifdef __OpenBSD__
-
-#include <dev/wscons/wsconsio.h>
-#include "xf86Priv.h"
-
-static void
-intel_output_backlight_set(xf86OutputPtr output, int level)
-{
- struct intel_output *intel_output = output->driver_private;
- struct wsdisplay_param param;
-
- if (level > intel_output->backlight_max)
- level = intel_output->backlight_max;
- if (! intel_output->backlight_iface || level < 0)
- return;
-
- param.param = WSDISPLAYIO_PARAM_BRIGHTNESS;
- param.curval = level;
- if (ioctl(xf86Info.consoleFd, WSDISPLAYIO_SETPARAM, &param) == -1) {
- xf86DrvMsg(output->scrn->scrnIndex, X_ERROR,
- "Failed to set backlight level: %s\n",
- strerror(errno));
- }
-}
-
-static int
-intel_output_backlight_get(xf86OutputPtr output)
-{
- struct wsdisplay_param param;
-
- param.param = WSDISPLAYIO_PARAM_BRIGHTNESS;
- if (ioctl(xf86Info.consoleFd, WSDISPLAYIO_GETPARAM, &param) == -1) {
- xf86DrvMsg(output->scrn->scrnIndex, X_ERROR,
- "Failed to get backlight level: %s\n",
- strerror(errno));
- return -1;
- }
-
- return param.curval;
-}
-
-static void
-intel_output_backlight_init(xf86OutputPtr output)
-{
- struct intel_output *intel_output = output->driver_private;
- struct wsdisplay_param param;
-
- param.param = WSDISPLAYIO_PARAM_BRIGHTNESS;
- if (ioctl(xf86Info.consoleFd, WSDISPLAYIO_GETPARAM, &param) == -1) {
- intel_output->backlight_iface = NULL;
- return;
- }
-
- intel_output->backlight_iface = "wscons";
- intel_output->backlight_max = param.max;
- intel_output->backlight_active_level = param.curval;
-}
-
-#else
-
-#define BACKLIGHT_CLASS "/sys/class/backlight"
-
/*
* List of available kernel interfaces in priority order
*/
@@ -220,135 +158,50 @@ static const char *backlight_interfaces[] = {
"intel_backlight",
NULL,
};
-/*
- * Must be long enough for BACKLIGHT_CLASS + '/' + longest in above table +
- * '/' + "max_backlight"
- */
-#define BACKLIGHT_PATH_LEN 80
-/* Enough for 10 digits of backlight + '\n' + '\0' */
-#define BACKLIGHT_VALUE_LEN 12
static void
intel_output_backlight_set(xf86OutputPtr output, int level)
{
struct intel_output *intel_output = output->driver_private;
- char path[BACKLIGHT_PATH_LEN], val[BACKLIGHT_VALUE_LEN];
- int fd, len, ret;
-
- if (level > intel_output->backlight_max)
- level = intel_output->backlight_max;
- if (! intel_output->backlight_iface || level < 0)
- return;
-
- len = snprintf(val, BACKLIGHT_VALUE_LEN, "%d\n", level);
- sprintf(path, "%s/%s/brightness",
- BACKLIGHT_CLASS, intel_output->backlight_iface);
- fd = open(path, O_RDWR);
- if (fd == -1) {
- xf86DrvMsg(output->scrn->scrnIndex, X_ERROR, "failed to open %s for backlight "
- "control: %s\n", path, strerror(errno));
- return;
- }
-
- ret = write(fd, val, len);
- if (ret == -1) {
- xf86DrvMsg(output->scrn->scrnIndex, X_ERROR, "write to %s for backlight "
- "control failed: %s\n", path, strerror(errno));
+ if (backlight_set(&intel_output->backlight, level) < 0) {
+ xf86DrvMsg(output->scrn->scrnIndex, X_ERROR,
+ "failed to set backlight %s to brightness level %d, disabling\n",
+ intel_output->backlight.iface, level);
+ backlight_disable(&intel_output->backlight);
}
-
- close(fd);
}
static int
intel_output_backlight_get(xf86OutputPtr output)
{
struct intel_output *intel_output = output->driver_private;
- char path[BACKLIGHT_PATH_LEN], val[BACKLIGHT_VALUE_LEN];
- int fd, level;
-
- sprintf(path, "%s/%s/actual_brightness",
- BACKLIGHT_CLASS, intel_output->backlight_iface);
- fd = open(path, O_RDONLY);
- if (fd == -1) {
- xf86DrvMsg(output->scrn->scrnIndex, X_ERROR, "failed to open %s "
- "for backlight control: %s\n", path, strerror(errno));
- return -1;
- }
-
- memset(val, 0, sizeof(val));
- if (read(fd, val, BACKLIGHT_VALUE_LEN) == -1) {
- close(fd);
- return -1;
- }
-
- close(fd);
-
- level = atoi(val);
- if (level > intel_output->backlight_max)
- level = intel_output->backlight_max;
- if (level < 0)
- level = -1;
- return level;
-}
-
-static int
-intel_output_backlight_get_max(xf86OutputPtr output)
-{
- struct intel_output *intel_output = output->driver_private;
- char path[BACKLIGHT_PATH_LEN], val[BACKLIGHT_VALUE_LEN];
- int fd, max = 0;
-
- /* We are used as an initial check to see if we can
- * control the backlight, so first test if we can set values.
- */
- sprintf(path, "%s/%s/brightness",
- BACKLIGHT_CLASS, intel_output->backlight_iface);
- if (access(path, R_OK | W_OK))
- return -1;
-
- sprintf(path, "%s/%s/max_brightness",
- BACKLIGHT_CLASS, intel_output->backlight_iface);
- fd = open(path, O_RDONLY);
- if (fd == -1) {
- xf86DrvMsg(output->scrn->scrnIndex, X_ERROR, "failed to open %s "
- "for backlight control: %s\n", path, strerror(errno));
- return -1;
- }
-
- memset(val, 0, sizeof(val));
- if (read(fd, val, BACKLIGHT_VALUE_LEN) == -1) {
- close(fd);
- return -1;
- }
-
- close(fd);
-
- max = atoi(val);
- if (max <= 0)
- max = -1;
- return max;
+ return backlight_get(&intel_output->backlight);
}
static void
intel_output_backlight_init(xf86OutputPtr output)
{
+#ifdef __OpenBSD__
+ intel_output->backlight_active_level =
+ backlight_init(&intel_output->backlight, NULL);
+ if (intel_output->backlight_active_level != -1) {
+ xf86DrvMsg(output->scrn->scrnIndex, X_PROBED,
+ "found backlight control interface\n");
+ }
+#else
struct intel_output *intel_output = output->driver_private;
intel_screen_private *intel = intel_get_screen_private(output->scrn);
- char path[BACKLIGHT_PATH_LEN];
- struct stat buf;
char *str;
int i;
str = xf86GetOptValString(intel->Options, OPTION_BACKLIGHT);
if (str != NULL) {
- sprintf(path, "%s/%s", BACKLIGHT_CLASS, str);
- if (!stat(path, &buf)) {
- intel_output->backlight_iface = str;
- intel_output->backlight_max = intel_output_backlight_get_max(output);
- if (intel_output->backlight_max > 0) {
- intel_output->backlight_active_level = intel_output_backlight_get(output);
+ if (backlight_exists(str)) {
+ intel_output->backlight_active_level =
+ backlight_open(&intel_output->backlight, strdup(str));
+ if (intel_output->backlight_active_level != -1) {
xf86DrvMsg(output->scrn->scrnIndex, X_CONFIG,
- "found backlight control interface %s\n", path);
+ "found backlight control interface %s\n", str);
return;
}
}
@@ -357,22 +210,18 @@ intel_output_backlight_init(xf86OutputPtr output)
}
for (i = 0; backlight_interfaces[i] != NULL; i++) {
- sprintf(path, "%s/%s", BACKLIGHT_CLASS, backlight_interfaces[i]);
- if (!stat(path, &buf)) {
- intel_output->backlight_iface = backlight_interfaces[i];
- intel_output->backlight_max = intel_output_backlight_get_max(output);
- if (intel_output->backlight_max > 0) {
- intel_output->backlight_active_level = intel_output_backlight_get(output);
+ if (backlight_exists(backlight_interfaces[i])) {
+ intel_output->backlight_active_level =
+ backlight_open(&intel_output->backlight, strdup(backlight_interfaces[i]));
+ if (intel_output->backlight_active_level != -1) {
xf86DrvMsg(output->scrn->scrnIndex, X_PROBED,
- "found backlight control interface %s\n", path);
+ "found backlight control interface %s\n", backlight_interfaces[i]);
return;
}
}
}
- intel_output->backlight_iface = NULL;
-}
-
#endif
+}
static void
mode_from_kmode(ScrnInfoPtr scrn,
@@ -1083,6 +932,7 @@ intel_output_destroy(xf86OutputPtr output)
intel_output->mode_output = NULL;
list_del(&intel_output->link);
+ backlight_close(&intel_output->backlight);
free(intel_output);
output->driver_private = NULL;
@@ -1093,7 +943,7 @@ intel_output_dpms_backlight(xf86OutputPtr output, int oldmode, int mode)
{
struct intel_output *intel_output = output->driver_private;
- if (!intel_output->backlight_iface)
+ if (!intel_output->backlight.iface)
return;
if (mode == DPMSModeOn) {
@@ -1286,20 +1136,20 @@ intel_output_create_resources(xf86OutputPtr output)
}
}
- if (intel_output->backlight_iface) {
+ if (intel_output->backlight.iface) {
/* Set up the backlight property, which takes effect
* immediately and accepts values only within the
* backlight_range.
*/
intel_output_create_ranged_atom(output, &backlight_atom,
BACKLIGHT_NAME, 0,
- intel_output->backlight_max,
+ intel_output->backlight.max,
intel_output->backlight_active_level,
FALSE);
intel_output_create_ranged_atom(output,
&backlight_deprecated_atom,
BACKLIGHT_DEPRECATED_NAME, 0,
- intel_output->backlight_max,
+ intel_output->backlight.max,
intel_output->backlight_active_level,
FALSE);
}
@@ -1323,7 +1173,7 @@ intel_output_set_property(xf86OutputPtr output, Atom property,
}
val = *(INT32 *)value->data;
- if (val < 0 || val > intel_output->backlight_max)
+ if (val < 0 || val > intel_output->backlight.max)
return FALSE;
if (intel_output->dpms_mode == DPMSModeOn)
@@ -1389,7 +1239,7 @@ intel_output_get_property(xf86OutputPtr output, Atom property)
if (property == backlight_atom || property == backlight_deprecated_atom) {
INT32 val;
- if (! intel_output->backlight_iface)
+ if (!intel_output->backlight.iface)
return FALSE;
val = intel_output_backlight_get(output);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 14:10:32 +0000