From: Tomi Valkeinen <[email protected]> Implement transparent copy and constant fill features for OMAP2/3.
Signed-off-by: Tomi Valkeinen <[email protected]> Signed-off-by: Tony Lindgren <[email protected]> --- arch/arm/plat-omap/dma.c | 77 +++++++++++++++++++++------------ arch/arm/plat-omap/include/mach/dma.h | 1 2 files changed, 50 insertions(+), 28 deletions(-) diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c index 7fc8c04..58d98ad 100644 --- a/arch/arm/plat-omap/dma.c +++ b/arch/arm/plat-omap/dma.c @@ -310,41 +310,62 @@ EXPORT_SYMBOL(omap_set_dma_transfer_params); void omap_set_dma_color_mode(int lch, enum omap_dma_color_mode mode, u32 color) { - u16 w; - BUG_ON(omap_dma_in_1510_mode()); - if (cpu_class_is_omap2()) { - REVISIT_24XX(); - return; - } + if (cpu_class_is_omap1()) { + u16 w; - w = dma_read(CCR2(lch)); - w &= ~0x03; + w = dma_read(CCR2(lch)); + w &= ~0x03; - switch (mode) { - case OMAP_DMA_CONSTANT_FILL: - w |= 0x01; - break; - case OMAP_DMA_TRANSPARENT_COPY: - w |= 0x02; - break; - case OMAP_DMA_COLOR_DIS: - break; - default: - BUG(); + switch (mode) { + case OMAP_DMA_CONSTANT_FILL: + w |= 0x01; + break; + case OMAP_DMA_TRANSPARENT_COPY: + w |= 0x02; + break; + case OMAP_DMA_COLOR_DIS: + break; + default: + BUG(); + } + dma_write(w, CCR2(lch)); + + w = dma_read(LCH_CTRL(lch)); + w &= ~0x0f; + /* Default is channel type 2D */ + if (mode) { + dma_write((u16)color, COLOR_L(lch)); + dma_write((u16)(color >> 16), COLOR_U(lch)); + w |= 1; /* Channel type G */ + } + dma_write(w, LCH_CTRL(lch)); } - dma_write(w, CCR2(lch)); - w = dma_read(LCH_CTRL(lch)); - w &= ~0x0f; - /* Default is channel type 2D */ - if (mode) { - dma_write((u16)color, COLOR_L(lch)); - dma_write((u16)(color >> 16), COLOR_U(lch)); - w |= 1; /* Channel type G */ + if (cpu_class_is_omap2()) { + u32 val; + + val = dma_read(CCR(lch)); + val &= ~((1 << 17) | (1 << 16)); + + switch (mode) { + case OMAP_DMA_CONSTANT_FILL: + val |= 1 << 16; + break; + case OMAP_DMA_TRANSPARENT_COPY: + val |= 1 << 17; + break; + case OMAP_DMA_COLOR_DIS: + break; + default: + BUG(); + } + dma_write(val, CCR(lch)); + + color &= 0xffffff; + dma_write(color, COLOR(lch)); } - dma_write(w, LCH_CTRL(lch)); } EXPORT_SYMBOL(omap_set_dma_color_mode); diff --git a/arch/arm/plat-omap/include/mach/dma.h b/arch/arm/plat-omap/include/mach/dma.h index 54fe966..35fefdb 100644 --- a/arch/arm/plat-omap/include/mach/dma.h +++ b/arch/arm/plat-omap/include/mach/dma.h @@ -144,6 +144,7 @@ #define OMAP_DMA4_CSSA_U(n) 0 #define OMAP_DMA4_CDSA_L(n) 0 #define OMAP_DMA4_CDSA_U(n) 0 +#define OMAP1_DMA_COLOR(n) 0 /*----------------------------------------------------------------------------*/ -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
