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| author | eric miao <eric.miao@marvell.com> | 2008-04-30 11:52:21 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-30 19:29:31 +0400 |
| commit | 2c42dd8ebdd92ad59d9a68f88f0e20ad9f45270a (patch) | |
| tree | 1013b04a3543aa1f1e1c9a2472ba15eb2e8f0cd9 /drivers/video/pxafb.h | |
| parent | ce4fb7b892a6d6c6a0f87366b26fd834d2923dd7 (diff) | |
| download | linux-2c42dd8ebdd92ad59d9a68f88f0e20ad9f45270a.tar.xz | |
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.h | 46 |
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; |