static void decon_win_set_pixfmt(struct decon_context *ctx, unsigned int win,
struct drm_framebuffer *fb)
{
unsigned long val;
val = readl(ctx->addr + DECON_WINCONx(win));
val &= ~WINCONx_BPPMODE_MASK;
switch (fb->pixel_format) {
case DRM_FORMAT_XRGB1555:
val |= WINCONx_BPPMODE_16BPP_I1555;
val |= WINCONx_HAWSWP_F;
val |= WINCONx_BURSTLEN_16WORD;
break;
case DRM_FORMAT_RGB565:
val |= WINCONx_BPPMODE_16BPP_565;
val |= WINCONx_HAWSWP_F;
val |= WINCONx_BURSTLEN_16WORD;
break;
case DRM_FORMAT_XRGB8888:
val |= WINCONx_BPPMODE_24BPP_888;
val |= WINCONx_WSWP_F;
val |= WINCONx_BURSTLEN_16WORD;
break;
case DRM_FORMAT_ARGB8888:
val |= WINCONx_BPPMODE_32BPP_A8888;
val |= WINCONx_WSWP_F | WINCONx_BLD_PIX_F | WINCONx_ALPHA_SEL_F;
val |= WINCONx_BURSTLEN_16WORD;
break;
default:
DRM_ERROR("Proper pixel format is not set\n");
return;
}
DRM_DEBUG_KMS("bpp = %u\n", fb->bits_per_pixel);
/*
* In case of exynos, setting dma-burst to 16Word causes permanent
* tearing for very small buffers, e.g. cursor buffer. Burst Mode
* switching which is based on plane size is not recommended as
* plane size varies a lot towards the end of the screen and rapid
* movement causes unstable DMA which results into iommu crash/tear.
*/
if (fb->width < MIN_FB_WIDTH_FOR_16WORD_BURST) {
val &= ~WINCONx_BURSTLEN_MASK;
val |= WINCONx_BURSTLEN_8WORD;
}
writel(val, ctx->addr + DECON_WINCONx(win));
}
static void decon_update_plane(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
struct decon_context *ctx = crtc->ctx;
struct drm_plane_state *state = plane->base.state;
unsigned int win = plane->zpos;
unsigned int bpp = state->fb->bits_per_pixel >> 3;
unsigned int pitch = state->fb->pitches[0];
u32 val;
if (ctx->suspended)
return;
val = COORDINATE_X(plane->crtc_x) | COORDINATE_Y(plane->crtc_y);
writel(val, ctx->addr + DECON_VIDOSDxA(win));
val = COORDINATE_X(plane->crtc_x + plane->crtc_w - 1) |
COORDINATE_Y(plane->crtc_y + plane->crtc_h - 1);
writel(val, ctx->addr + DECON_VIDOSDxB(win));
val = VIDOSD_Wx_ALPHA_R_F(0x0) | VIDOSD_Wx_ALPHA_G_F(0x0) |
VIDOSD_Wx_ALPHA_B_F(0x0);
writel(val, ctx->addr + DECON_VIDOSDxC(win));
val = VIDOSD_Wx_ALPHA_R_F(0x0) | VIDOSD_Wx_ALPHA_G_F(0x0) |
VIDOSD_Wx_ALPHA_B_F(0x0);
writel(val, ctx->addr + DECON_VIDOSDxD(win));
writel(plane->dma_addr[0], ctx->addr + DECON_VIDW0xADD0B0(win));
val = plane->dma_addr[0] + pitch * plane->crtc_h;
writel(val, ctx->addr + DECON_VIDW0xADD1B0(win));
val = OFFSIZE(pitch - plane->crtc_w * bpp)
| PAGEWIDTH(plane->crtc_w * bpp);
writel(val, ctx->addr + DECON_VIDW0xADD2(win));
decon_win_set_pixfmt(ctx, win, state->fb);
/* window enable */
val = readl(ctx->addr + DECON_WINCONx(win));
val |= WINCONx_ENWIN_F;
writel(val, ctx->addr + DECON_WINCONx(win));
/* standalone update */
val = readl(ctx->addr + DECON_UPDATE);
val |= STANDALONE_UPDATE_F;
writel(val, ctx->addr + DECON_UPDATE);
}
static void decon_clear_channels(struct exynos_drm_crtc *crtc)
{
struct decon_context *ctx = crtc->ctx;
int win, i, ret;
DRM_DEBUG_KMS("%s\n", __FILE__);
for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) {
ret = clk_prepare_enable(ctx->clks[i]);
if (ret < 0)
goto err;
}
for (win = 0; win < WINDOWS_NR; win++) {
decon_shadow_protect_win(ctx, win, true);
decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, 0);
decon_shadow_protect_win(ctx, win, false);
decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0);
}
/* TODO: wait for possible vsync */
msleep(50);
err:
while (--i >= 0)
clk_disable_unprepare(ctx->clks[i]);
}
static void decon_clear_channels(struct exynos_drm_crtc *crtc)
{
struct decon_context *ctx = crtc->ctx;
int win, i, ret;
u32 val;
DRM_DEBUG_KMS("%s\n", __FILE__);
for (i = 0; i < ARRAY_SIZE(decon_clks_name); i++) {
ret = clk_prepare_enable(ctx->clks[i]);
if (ret < 0)
goto err;
}
for (win = 0; win < WINDOWS_NR; win++) {
/* shadow update disable */
val = readl(ctx->addr + DECON_SHADOWCON);
val |= SHADOWCON_Wx_PROTECT(win);
writel(val, ctx->addr + DECON_SHADOWCON);
/* window disable */
val = readl(ctx->addr + DECON_WINCONx(win));
val &= ~WINCONx_ENWIN_F;
writel(val, ctx->addr + DECON_WINCONx(win));
/* shadow update enable */
val = readl(ctx->addr + DECON_SHADOWCON);
val &= ~SHADOWCON_Wx_PROTECT(win);
writel(val, ctx->addr + DECON_SHADOWCON);
/* standalone update */
val = readl(ctx->addr + DECON_UPDATE);
val |= STANDALONE_UPDATE_F;
writel(val, ctx->addr + DECON_UPDATE);
}
/* TODO: wait for possible vsync */
msleep(50);
err:
while (--i >= 0)
clk_disable_unprepare(ctx->clks[i]);
}
static void decon_disable_plane(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
struct decon_context *ctx = crtc->ctx;
unsigned int win = plane->index;
if (test_bit(BIT_SUSPENDED, &ctx->flags))
return;
decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, 0);
}
static void decon_update_plane(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
struct exynos_drm_plane_state *state =
to_exynos_plane_state(plane->base.state);
struct decon_context *ctx = crtc->ctx;
struct drm_framebuffer *fb = state->base.fb;
unsigned int win = plane->index;
unsigned int bpp = fb->bits_per_pixel >> 3;
unsigned int pitch = fb->pitches[0];
dma_addr_t dma_addr = exynos_drm_fb_dma_addr(fb, 0);
u32 val;
if (test_bit(BIT_SUSPENDED, &ctx->flags))
return;
val = COORDINATE_X(state->crtc.x) | COORDINATE_Y(state->crtc.y);
writel(val, ctx->addr + DECON_VIDOSDxA(win));
val = COORDINATE_X(state->crtc.x + state->crtc.w - 1) |
COORDINATE_Y(state->crtc.y + state->crtc.h - 1);
writel(val, ctx->addr + DECON_VIDOSDxB(win));
val = VIDOSD_Wx_ALPHA_R_F(0x0) | VIDOSD_Wx_ALPHA_G_F(0x0) |
VIDOSD_Wx_ALPHA_B_F(0x0);
writel(val, ctx->addr + DECON_VIDOSDxC(win));
val = VIDOSD_Wx_ALPHA_R_F(0x0) | VIDOSD_Wx_ALPHA_G_F(0x0) |
VIDOSD_Wx_ALPHA_B_F(0x0);
writel(val, ctx->addr + DECON_VIDOSDxD(win));
writel(dma_addr, ctx->addr + DECON_VIDW0xADD0B0(win));
val = dma_addr + pitch * state->src.h;
writel(val, ctx->addr + DECON_VIDW0xADD1B0(win));
if (ctx->out_type != IFTYPE_HDMI)
val = BIT_VAL(pitch - state->crtc.w * bpp, 27, 14)
| BIT_VAL(state->crtc.w * bpp, 13, 0);
else
val = BIT_VAL(pitch - state->crtc.w * bpp, 29, 15)
| BIT_VAL(state->crtc.w * bpp, 14, 0);
writel(val, ctx->addr + DECON_VIDW0xADD2(win));
decon_win_set_pixfmt(ctx, win, fb);
/* window enable */
decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, ~0);
/* standalone update */
decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0);
}
static void decon_update_plane(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
struct decon_context *ctx = crtc->ctx;
struct drm_plane_state *state = plane->base.state;
unsigned int win = plane->zpos;
unsigned int bpp = state->fb->bits_per_pixel >> 3;
unsigned int pitch = state->fb->pitches[0];
u32 val;
if (test_bit(BIT_SUSPENDED, &ctx->flags))
return;
val = COORDINATE_X(plane->crtc_x) | COORDINATE_Y(plane->crtc_y);
writel(val, ctx->addr + DECON_VIDOSDxA(win));
val = COORDINATE_X(plane->crtc_x + plane->crtc_w - 1) |
COORDINATE_Y(plane->crtc_y + plane->crtc_h - 1);
writel(val, ctx->addr + DECON_VIDOSDxB(win));
val = VIDOSD_Wx_ALPHA_R_F(0x0) | VIDOSD_Wx_ALPHA_G_F(0x0) |
VIDOSD_Wx_ALPHA_B_F(0x0);
writel(val, ctx->addr + DECON_VIDOSDxC(win));
val = VIDOSD_Wx_ALPHA_R_F(0x0) | VIDOSD_Wx_ALPHA_G_F(0x0) |
VIDOSD_Wx_ALPHA_B_F(0x0);
writel(val, ctx->addr + DECON_VIDOSDxD(win));
writel(plane->dma_addr[0], ctx->addr + DECON_VIDW0xADD0B0(win));
val = plane->dma_addr[0] + pitch * plane->crtc_h;
writel(val, ctx->addr + DECON_VIDW0xADD1B0(win));
if (ctx->out_type != IFTYPE_HDMI)
val = BIT_VAL(pitch - plane->crtc_w * bpp, 27, 14)
| BIT_VAL(plane->crtc_w * bpp, 13, 0);
else
val = BIT_VAL(pitch - plane->crtc_w * bpp, 29, 15)
| BIT_VAL(plane->crtc_w * bpp, 14, 0);
writel(val, ctx->addr + DECON_VIDW0xADD2(win));
decon_win_set_pixfmt(ctx, win, state->fb);
/* window enable */
decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, ~0);
/* standalone update */
decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0);
}
static void decon_disable_plane(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
struct decon_context *ctx = crtc->ctx;
unsigned int win = plane->zpos;
u32 val;
if (ctx->suspended)
return;
decon_shadow_protect_win(ctx, win, true);
/* window disable */
val = readl(ctx->addr + DECON_WINCONx(win));
val &= ~WINCONx_ENWIN_F;
writel(val, ctx->addr + DECON_WINCONx(win));
decon_shadow_protect_win(ctx, win, false);
/* standalone update */
val = readl(ctx->addr + DECON_UPDATE);
val |= STANDALONE_UPDATE_F;
writel(val, ctx->addr + DECON_UPDATE);
}
static void decon_disable_plane(struct exynos_drm_crtc *crtc,
struct exynos_drm_plane *plane)
{
struct decon_context *ctx = crtc->ctx;
unsigned int win = plane->zpos;
if (test_bit(BIT_SUSPENDED, &ctx->flags))
return;
decon_shadow_protect_win(ctx, win, true);
/* window disable */
decon_set_bits(ctx, DECON_WINCONx(win), WINCONx_ENWIN_F, 0);
decon_shadow_protect_win(ctx, win, false);
/* standalone update */
decon_set_bits(ctx, DECON_UPDATE, STANDALONE_UPDATE_F, ~0);
}