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-rw-r--r--linux-core/drm_crtc.c115
-rw-r--r--linux-core/drm_crtc.h19
-rw-r--r--linux-core/drm_drv.c2
-rw-r--r--linux-core/drm_fb.c3
-rw-r--r--linux-core/intel_display.c21
-rw-r--r--linux-core/intel_drv.h3
-rw-r--r--linux-core/intel_fb.c4
-rw-r--r--linux-core/radeon_ms_fb.c6
8 files changed, 158 insertions, 15 deletions
diff --git a/linux-core/drm_crtc.c b/linux-core/drm_crtc.c
index 73c7f2a3..7746fd50 100644
--- a/linux-core/drm_crtc.c
+++ b/linux-core/drm_crtc.c
@@ -279,6 +279,11 @@ void drm_crtc_cleanup(struct drm_crtc *crtc)
{
struct drm_device *dev = crtc->dev;
+ if (crtc->gamma_store) {
+ kfree(crtc->gamma_store);
+ crtc->gamma_store = NULL;
+ }
+
drm_idr_put(dev, crtc->id);
list_del(&crtc->head);
dev->mode_config.num_crtc--;
@@ -896,6 +901,7 @@ int drm_mode_getcrtc(struct drm_device *dev,
crtc_resp->x = crtc->x;
crtc_resp->y = crtc->y;
+ crtc_resp->gamma_size = crtc->gamma_size;
if (crtc->fb)
crtc_resp->fb_id = crtc->fb->id;
@@ -2070,3 +2076,112 @@ void drm_mode_connector_detach_encoder(struct drm_connector *connector,
}
}
EXPORT_SYMBOL(drm_mode_connector_detach_encoder);
+
+bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
+ int gamma_size)
+{
+ crtc->gamma_size = gamma_size;
+
+ crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL);
+ if (!crtc->gamma_store) {
+ crtc->gamma_size = 0;
+ return false;
+ }
+
+ return true;
+}
+EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
+
+int drm_mode_gamma_set_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_lut *crtc_lut = data;
+ struct drm_crtc *crtc;
+ void *r_base, *g_base, *b_base;
+ int size;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ crtc = idr_find(&dev->mode_config.crtc_idr, crtc_lut->crtc_id);
+ if (!crtc || (crtc->id != crtc_lut->crtc_id)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* memcpy into gamma store */
+ if (crtc_lut->gamma_size != crtc->gamma_size) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ size = crtc_lut->gamma_size * (sizeof(uint16_t));
+ r_base = crtc->gamma_store;
+ if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ g_base = r_base + size;
+ if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ b_base = g_base + size;
+ if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
+
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+
+}
+
+int drm_mode_gamma_get_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_mode_crtc_lut *crtc_lut = data;
+ struct drm_crtc *crtc;
+ void *r_base, *g_base, *b_base;
+ int size;
+ int ret = 0;
+
+ mutex_lock(&dev->mode_config.mutex);
+ crtc = idr_find(&dev->mode_config.crtc_idr, crtc_lut->crtc_id);
+ if (!crtc || (crtc->id != crtc_lut->crtc_id)) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* memcpy into gamma store */
+ if (crtc_lut->gamma_size != crtc->gamma_size) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ size = crtc_lut->gamma_size * (sizeof(uint16_t));
+ r_base = crtc->gamma_store;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ g_base = r_base + size;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+
+ b_base = g_base + size;
+ if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
+ ret = -EFAULT;
+ goto out;
+ }
+out:
+ mutex_unlock(&dev->mode_config.mutex);
+ return ret;
+}
diff --git a/linux-core/drm_crtc.h b/linux-core/drm_crtc.h
index 390ab2d3..151d1732 100644
--- a/linux-core/drm_crtc.h
+++ b/linux-core/drm_crtc.h
@@ -315,8 +315,8 @@ struct drm_crtc_funcs {
int (*cursor_move)(struct drm_crtc *crtc, int x, int y);
/* Set gamma on the CRTC */
- void (*gamma_set)(struct drm_crtc *crtc, u16 r, u16 g, u16 b,
- int regno);
+ void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
+ uint32_t size);
/* Object destroy routine */
void (*destroy)(struct drm_crtc *crtc);
@@ -354,6 +354,10 @@ struct drm_crtc {
int desired_x, desired_y;
const struct drm_crtc_funcs *funcs;
+ /* CRTC gamma size for reporting to userspace */
+ uint32_t gamma_size;
+ uint16_t *gamma_store;
+
/* if you are using the helper */
void *helper_private;
};
@@ -627,7 +631,8 @@ extern int drm_mode_connector_attach_encoder(struct drm_connector *connector,
struct drm_encoder *encoder);
extern void drm_mode_connector_detach_encoder(struct drm_connector *connector,
struct drm_encoder *encoder);
-
+extern bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
+ int gamma_size);
/* IOCTLs */
extern int drm_mode_getresources(struct drm_device *dev,
void *data, struct drm_file *file_priv);
@@ -665,7 +670,11 @@ extern int drm_mode_hotplug_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern int drm_mode_replacefb(struct drm_device *dev,
void *data, struct drm_file *file_priv);
-int drm_mode_getencoder(struct drm_device *dev,
- void *data, struct drm_file *file_priv);
+extern int drm_mode_getencoder(struct drm_device *dev,
+ void *data, struct drm_file *file_priv);
+extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv);
+extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
+ void *data, struct drm_file *file_priv);
#endif /* __DRM_CRTC_H__ */
diff --git a/linux-core/drm_drv.c b/linux-core/drm_drv.c
index 5a16fe8d..82e5af57 100644
--- a/linux-core/drm_drv.c
+++ b/linux-core/drm_drv.c
@@ -143,6 +143,8 @@ static struct drm_ioctl_desc drm_ioctls[] = {
DRM_IOCTL_DEF(DRM_IOCTL_MODE_REPLACEFB, drm_mode_replacefb, DRM_MASTER|DRM_ROOT_ONLY|DRM_CONTROL_ALLOW),
DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_ROOT_ONLY|DRM_CONTROL_ALLOW),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER),
+ DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER),
DRM_IOCTL_DEF(DRM_IOCTL_MM_INIT, drm_mm_init_ioctl,
DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
diff --git a/linux-core/drm_fb.c b/linux-core/drm_fb.c
index 775fd180..74a4394a 100644
--- a/linux-core/drm_fb.c
+++ b/linux-core/drm_fb.c
@@ -58,9 +58,6 @@ static int drmfb_setcolreg(unsigned regno, unsigned red, unsigned green,
return 1;
if (fb->depth == 8) {
- if (crtc->funcs->gamma_set) {
- crtc->funcs->gamma_set(crtc, red, green, blue, regno);
- }
return 0;
}
diff --git a/linux-core/intel_display.c b/linux-core/intel_display.c
index e23b3973..ba9441d6 100644
--- a/linux-core/intel_display.c
+++ b/linux-core/intel_display.c
@@ -1056,7 +1056,7 @@ static int intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
}
/** Sets the color ramps on behalf of RandR */
-static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
+void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
u16 blue, int regno)
{
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
@@ -1066,6 +1066,24 @@ static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
intel_crtc->lut_b[regno] = blue >> 8;
}
+static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
+ u16 *blue, uint32_t size)
+{
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+ int i;
+
+ if (size != 256)
+ return;
+
+ for (i = 0; i < 256; i++) {
+ intel_crtc->lut_r[i] = red[i] >> 8;
+ intel_crtc->lut_g[i] = green[i] >> 8;
+ intel_crtc->lut_b[i] = blue[i] >> 8;
+ }
+
+ intel_crtc_load_lut(crtc);
+}
+
/**
* Get a pipe with a simple mode set on it for doing load-based monitor
* detection.
@@ -1343,6 +1361,7 @@ void intel_crtc_init(struct drm_device *dev, int pipe)
drm_crtc_init(dev, &intel_crtc->base, &intel_crtc_funcs);
+ drm_mode_crtc_set_gamma_size(&intel_crtc->base, 256);
intel_crtc->pipe = pipe;
for (i = 0; i < 256; i++) {
intel_crtc->lut_r[i] = i;
diff --git a/linux-core/intel_drv.h b/linux-core/intel_drv.h
index 24287e37..210ed990 100644
--- a/linux-core/intel_drv.h
+++ b/linux-core/intel_drv.h
@@ -104,5 +104,6 @@ extern void intel_sdvo_set_hotplug(struct drm_connector *connector, int enable);
extern int intelfb_probe(struct drm_device *dev, struct drm_crtc *crtc, struct drm_connector *connector);
extern int intelfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
extern int intelfb_resize(struct drm_device *dev, struct drm_crtc *crtc);
-
+extern void intel_crtc_fb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
+ u16 blue, int regno);
#endif /* __INTEL_DRV_H__ */
diff --git a/linux-core/intel_fb.c b/linux-core/intel_fb.c
index 138d189e..268e95c5 100644
--- a/linux-core/intel_fb.c
+++ b/linux-core/intel_fb.c
@@ -41,6 +41,7 @@
#include "drmP.h"
#include "drm.h"
#include "drm_crtc.h"
+#include "intel_drv.h"
#include "i915_drm.h"
#include "i915_drv.h"
@@ -79,8 +80,7 @@ static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green,
return 1;
if (fb->depth == 8) {
- if (crtc->funcs->gamma_set)
- crtc->funcs->gamma_set(crtc, red, green, blue, regno);
+ intel_crtc_fb_gamma_set(crtc, red, green, blue, regno);
return 0;
}
diff --git a/linux-core/radeon_ms_fb.c b/linux-core/radeon_ms_fb.c
index e320144e..0ac9207c 100644
--- a/linux-core/radeon_ms_fb.c
+++ b/linux-core/radeon_ms_fb.c
@@ -54,9 +54,9 @@ static int radeonfb_setcolreg(unsigned regno, unsigned red,
if (regno > 255) {
return 1;
}
- if (crtc->funcs->gamma_set) {
- crtc->funcs->gamma_set(crtc, red, green, blue, regno);
- }
+ // if (crtc->funcs->gamma_set) {
+ // crtc->funcs->gamma_set(crtc, red, green, blue, regno);
+ // }
if (regno < 16) {
switch (fb->depth) {
case 15:
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-09 19:00:50 +0000