Commit 7203425a authored by James Simmons's avatar James Simmons Committed by Dave Airlie

drm: expand gamma_set

Expand the crtc_gamma_set function to accept a starting offset. The
reason for this is to eventually use this function for setcolreg from
drm_fb_helper.c. The fbdev colormap function can start at any offset in
the color map.
Signed-by: default avatarJames Simmons <jsimmons@infradead.org>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 38fcbb67
......@@ -2541,7 +2541,7 @@ int drm_mode_gamma_set_ioctl(struct drm_device *dev,
goto out;
}
crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size);
out:
mutex_unlock(&dev->mode_config.mutex);
......
......@@ -4330,15 +4330,12 @@ void intel_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
}
static void intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
u16 *blue, uint32_t size)
u16 *blue, uint32_t start, uint32_t size)
{
int end = (start + size > 256) ? 256 : start + size, i;
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
int i;
if (size != 256)
return;
for (i = 0; i < 256; i++) {
for (i = start; i < end; 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;
......
......@@ -742,15 +742,13 @@ nv_crtc_gamma_load(struct drm_crtc *crtc)
}
static void
nv_crtc_gamma_set(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b, uint32_t size)
nv_crtc_gamma_set(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b, uint32_t start,
uint32_t size)
{
int end = (start + size > 256) ? 256 : start + size, i;
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
int i;
if (size != 256)
return;
for (i = 0; i < 256; i++) {
for (i = start; i < end; i++) {
nv_crtc->lut.r[i] = r[i];
nv_crtc->lut.g[i] = g[i];
nv_crtc->lut.b[i] = b[i];
......
......@@ -398,15 +398,12 @@ nv50_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
static void
nv50_crtc_gamma_set(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
uint32_t size)
uint32_t start, uint32_t size)
{
int end = (start + size > 256) ? 256 : start + size, i;
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
int i;
if (size != 256)
return;
for (i = 0; i < 256; i++) {
for (i = start; i < end; i++) {
nv_crtc->lut.r[i] = r[i];
nv_crtc->lut.g[i] = g[i];
nv_crtc->lut.b[i] = b[i];
......
......@@ -161,17 +161,13 @@ void radeon_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green,
}
static void radeon_crtc_gamma_set(struct drm_crtc *crtc, u16 *red, u16 *green,
u16 *blue, uint32_t size)
u16 *blue, uint32_t start, uint32_t size)
{
struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
int i;
if (size != 256) {
return;
}
int end = (start + size > 256) ? 256 : start + size, i;
/* userspace palettes are always correct as is */
for (i = 0; i < 256; i++) {
for (i = start; i < end; i++) {
radeon_crtc->lut_r[i] = red[i] >> 6;
radeon_crtc->lut_g[i] = green[i] >> 6;
radeon_crtc->lut_b[i] = blue[i] >> 6;
......
......@@ -79,7 +79,7 @@ static void vmw_ldu_crtc_restore(struct drm_crtc *crtc)
static void vmw_ldu_crtc_gamma_set(struct drm_crtc *crtc,
u16 *r, u16 *g, u16 *b,
uint32_t size)
uint32_t start, uint32_t size)
{
}
......
......@@ -310,7 +310,7 @@ struct drm_crtc_funcs {
/* Set gamma on the CRTC */
void (*gamma_set)(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
uint32_t size);
uint32_t start, uint32_t size);
/* Object destroy routine */
void (*destroy)(struct drm_crtc *crtc);
......
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