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authoreric miao <eric.miao@marvell.com>2008-04-30 00:52:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-30 08:29:31 -0700
commit2c42dd8ebdd92ad59d9a68f88f0e20ad9f45270a (patch)
tree1013b04a3543aa1f1e1c9a2472ba15eb2e8f0cd9 /drivers/video/pxafb.h
parentce4fb7b892a6d6c6a0f87366b26fd834d2923dd7 (diff)
downloadlinux-linaro-stable-2c42dd8ebdd92ad59d9a68f88f0e20ad9f45270a.tar.gz
pxafb: introduce "struct pxafb_dma_buff" for palette and dma descriptors
Use structure and array for palette buffer and dma descriptors to: 1. better organize code for future expansion like overlays 2. separate palette and dma descriptors from frame buffer Signed-off-by: eric miao <eric.miao@marvell.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/video/pxafb.h')
-rw-r--r--drivers/video/pxafb.h46
1 files changed, 34 insertions, 12 deletions
diff --git a/drivers/video/pxafb.h b/drivers/video/pxafb.h
index c7c561df3b68..b777641c5e70 100644
--- a/drivers/video/pxafb.h
+++ b/drivers/video/pxafb.h
@@ -37,6 +37,36 @@ struct pxafb_dma_descriptor {
unsigned int ldcmd;
};
+enum {
+ PAL_NONE = -1,
+ PAL_BASE = 0,
+ PAL_OV1 = 1,
+ PAL_OV2 = 2,
+ PAL_MAX,
+};
+
+enum {
+ DMA_BASE = 0,
+ DMA_UPPER = 0,
+ DMA_LOWER = 1,
+ DMA_OV1 = 1,
+ DMA_OV2_Y = 2,
+ DMA_OV2_Cb = 3,
+ DMA_OV2_Cr = 4,
+ DMA_CURSOR = 5,
+ DMA_CMD = 6,
+ DMA_MAX,
+};
+
+/* maximum palette size - 256 entries, each 4 bytes long */
+#define PALETTE_SIZE (256 * 4)
+
+struct pxafb_dma_buff {
+ unsigned char palette[PAL_MAX * PALETTE_SIZE];
+ struct pxafb_dma_descriptor pal_desc[PAL_MAX];
+ struct pxafb_dma_descriptor dma_desc[DMA_MAX];
+};
+
struct pxafb_info {
struct fb_info fb;
struct device *dev;
@@ -44,6 +74,10 @@ struct pxafb_info {
void __iomem *mmio_base;
+ struct pxafb_dma_buff *dma_buff;
+ dma_addr_t dma_buff_phys;
+ dma_addr_t fdadr[DMA_MAX];
+
/*
* These are the addresses we mapped
* the framebuffer memory region to.
@@ -57,20 +91,8 @@ struct pxafb_info {
u_char * screen_cpu; /* virtual address of frame buffer */
dma_addr_t screen_dma; /* physical address of frame buffer */
u16 * palette_cpu; /* virtual address of palette memory */
- dma_addr_t palette_dma; /* physical address of palette memory */
u_int palette_size;
- /* DMA descriptors */
- struct pxafb_dma_descriptor * dmadesc_fblow_cpu;
- dma_addr_t dmadesc_fblow_dma;
- struct pxafb_dma_descriptor * dmadesc_fbhigh_cpu;
- dma_addr_t dmadesc_fbhigh_dma;
- struct pxafb_dma_descriptor * dmadesc_palette_cpu;
- dma_addr_t dmadesc_palette_dma;
-
- dma_addr_t fdadr0;
- dma_addr_t fdadr1;
-
u_int lccr0;
u_int lccr3;
u_int lccr4;