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Diffstat (limited to 'include/video/tgafb.h')
| -rw-r--r-- | include/video/tgafb.h | 238 |
1 files changed, 238 insertions, 0 deletions
diff --git a/include/video/tgafb.h b/include/video/tgafb.h new file mode 100644 index 00000000000..be2b3e94e25 --- /dev/null +++ b/include/video/tgafb.h @@ -0,0 +1,238 @@ +/* + * linux/drivers/video/tgafb.h -- DEC 21030 TGA frame buffer device + * + * Copyright (C) 1999,2000 Martin Lucina, Tom Zerucha + * + * $Id: tgafb.h,v 1.4.2.3 2000/04/04 06:44:56 mato Exp $ + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file COPYING in the main directory of this archive for + * more details. + */ + +#ifndef TGAFB_H +#define TGAFB_H + +/* + * TGA hardware description (minimal) + */ + +#define TGA_TYPE_8PLANE 0 +#define TGA_TYPE_24PLANE 1 +#define TGA_TYPE_24PLUSZ 3 + +/* + * Offsets within Memory Space + */ + +#define TGA_ROM_OFFSET 0x0000000 +#define TGA_REGS_OFFSET 0x0100000 +#define TGA_8PLANE_FB_OFFSET 0x0200000 +#define TGA_24PLANE_FB_OFFSET 0x0804000 +#define TGA_24PLUSZ_FB_OFFSET 0x1004000 + +#define TGA_FOREGROUND_REG 0x0020 +#define TGA_BACKGROUND_REG 0x0024 +#define TGA_PLANEMASK_REG 0x0028 +#define TGA_PIXELMASK_ONESHOT_REG 0x002c +#define TGA_MODE_REG 0x0030 +#define TGA_RASTEROP_REG 0x0034 +#define TGA_PIXELSHIFT_REG 0x0038 +#define TGA_DEEP_REG 0x0050 +#define TGA_PIXELMASK_REG 0x005c +#define TGA_CURSOR_BASE_REG 0x0060 +#define TGA_HORIZ_REG 0x0064 +#define TGA_VERT_REG 0x0068 +#define TGA_BASE_ADDR_REG 0x006c +#define TGA_VALID_REG 0x0070 +#define TGA_CURSOR_XY_REG 0x0074 +#define TGA_INTR_STAT_REG 0x007c +#define TGA_DATA_REG 0x0080 +#define TGA_RAMDAC_SETUP_REG 0x00c0 +#define TGA_BLOCK_COLOR0_REG 0x0140 +#define TGA_BLOCK_COLOR1_REG 0x0144 +#define TGA_BLOCK_COLOR2_REG 0x0148 +#define TGA_BLOCK_COLOR3_REG 0x014c +#define TGA_BLOCK_COLOR4_REG 0x0150 +#define TGA_BLOCK_COLOR5_REG 0x0154 +#define TGA_BLOCK_COLOR6_REG 0x0158 +#define TGA_BLOCK_COLOR7_REG 0x015c +#define TGA_COPY64_SRC 0x0160 +#define TGA_COPY64_DST 0x0164 +#define TGA_CLOCK_REG 0x01e8 +#define TGA_RAMDAC_REG 0x01f0 +#define TGA_CMD_STAT_REG 0x01f8 + + +/* + * Useful defines for managing the registers + */ + +#define TGA_HORIZ_ODD 0x80000000 +#define TGA_HORIZ_POLARITY 0x40000000 +#define TGA_HORIZ_ACT_MSB 0x30000000 +#define TGA_HORIZ_BP 0x0fe00000 +#define TGA_HORIZ_SYNC 0x001fc000 +#define TGA_HORIZ_FP 0x00007c00 +#define TGA_HORIZ_ACT_LSB 0x000001ff + +#define TGA_VERT_SE 0x80000000 +#define TGA_VERT_POLARITY 0x40000000 +#define TGA_VERT_RESERVED 0x30000000 +#define TGA_VERT_BP 0x0fc00000 +#define TGA_VERT_SYNC 0x003f0000 +#define TGA_VERT_FP 0x0000f800 +#define TGA_VERT_ACTIVE 0x000007ff + +#define TGA_VALID_VIDEO 0x01 +#define TGA_VALID_BLANK 0x02 +#define TGA_VALID_CURSOR 0x04 + +#define TGA_MODE_SBM_8BPP 0x000 +#define TGA_MODE_SBM_24BPP 0x300 + +#define TGA_MODE_SIMPLE 0x00 +#define TGA_MODE_SIMPLEZ 0x10 +#define TGA_MODE_OPAQUE_STIPPLE 0x01 +#define TGA_MODE_OPAQUE_FILL 0x21 +#define TGA_MODE_TRANSPARENT_STIPPLE 0x03 +#define TGA_MODE_TRANSPARENT_FILL 0x23 +#define TGA_MODE_BLOCK_STIPPLE 0x0d +#define TGA_MODE_BLOCK_FILL 0x2d +#define TGA_MODE_COPY 0x07 +#define TGA_MODE_DMA_READ_COPY_ND 0x17 +#define TGA_MODE_DMA_READ_COPY_D 0x37 +#define TGA_MODE_DMA_WRITE_COPY 0x1f + + +/* + * Useful defines for managing the ICS1562 PLL clock + */ + +#define TGA_PLL_BASE_FREQ 14318 /* .18 */ +#define TGA_PLL_MAX_FREQ 230000 + + +/* + * Useful defines for managing the BT485 on the 8-plane TGA + */ + +#define BT485_READ_BIT 0x01 +#define BT485_WRITE_BIT 0x00 + +#define BT485_ADDR_PAL_WRITE 0x00 +#define BT485_DATA_PAL 0x02 +#define BT485_PIXEL_MASK 0x04 +#define BT485_ADDR_PAL_READ 0x06 +#define BT485_ADDR_CUR_WRITE 0x08 +#define BT485_DATA_CUR 0x0a +#define BT485_CMD_0 0x0c +#define BT485_ADDR_CUR_READ 0x0e +#define BT485_CMD_1 0x10 +#define BT485_CMD_2 0x12 +#define BT485_STATUS 0x14 +#define BT485_CMD_3 0x14 +#define BT485_CUR_RAM 0x16 +#define BT485_CUR_LOW_X 0x18 +#define BT485_CUR_HIGH_X 0x1a +#define BT485_CUR_LOW_Y 0x1c +#define BT485_CUR_HIGH_Y 0x1e + + +/* + * Useful defines for managing the BT463 on the 24-plane TGAs + */ + +#define BT463_ADDR_LO 0x0 +#define BT463_ADDR_HI 0x1 +#define BT463_REG_ACC 0x2 +#define BT463_PALETTE 0x3 + +#define BT463_CUR_CLR_0 0x0100 +#define BT463_CUR_CLR_1 0x0101 + +#define BT463_CMD_REG_0 0x0201 +#define BT463_CMD_REG_1 0x0202 +#define BT463_CMD_REG_2 0x0203 + +#define BT463_READ_MASK_0 0x0205 +#define BT463_READ_MASK_1 0x0206 +#define BT463_READ_MASK_2 0x0207 +#define BT463_READ_MASK_3 0x0208 + +#define BT463_BLINK_MASK_0 0x0209 +#define BT463_BLINK_MASK_1 0x020a +#define BT463_BLINK_MASK_2 0x020b +#define BT463_BLINK_MASK_3 0x020c + +#define BT463_WINDOW_TYPE_BASE 0x0300 + +/* + * The framebuffer driver private data. + */ + +struct tga_par { + /* PCI device. */ + struct pci_dev *pdev; + + /* Device dependent information. */ + void __iomem *tga_mem_base; + void __iomem *tga_fb_base; + void __iomem *tga_regs_base; + u8 tga_type; /* TGA_TYPE_XXX */ + u8 tga_chip_rev; /* dc21030 revision */ + + /* Remember blank mode. */ + u8 vesa_blanked; + + /* Define the video mode. */ + u32 xres, yres; /* resolution in pixels */ + u32 htimings; /* horizontal timing register */ + u32 vtimings; /* vertical timing register */ + u32 pll_freq; /* pixclock in mhz */ + u32 bits_per_pixel; /* bits per pixel */ + u32 sync_on_green; /* set if sync is on green */ +}; + + +/* + * Macros for reading/writing TGA and RAMDAC registers + */ + +static inline void +TGA_WRITE_REG(struct tga_par *par, u32 v, u32 r) +{ + writel(v, par->tga_regs_base +r); +} + +static inline u32 +TGA_READ_REG(struct tga_par *par, u32 r) +{ + return readl(par->tga_regs_base +r); +} + +static inline void +BT485_WRITE(struct tga_par *par, u8 v, u8 r) +{ + TGA_WRITE_REG(par, r, TGA_RAMDAC_SETUP_REG); + TGA_WRITE_REG(par, v | (r << 8), TGA_RAMDAC_REG); +} + +static inline void +BT463_LOAD_ADDR(struct tga_par *par, u16 a) +{ + TGA_WRITE_REG(par, BT463_ADDR_LO<<2, TGA_RAMDAC_SETUP_REG); + TGA_WRITE_REG(par, (BT463_ADDR_LO<<10) | (a & 0xff), TGA_RAMDAC_REG); + TGA_WRITE_REG(par, BT463_ADDR_HI<<2, TGA_RAMDAC_SETUP_REG); + TGA_WRITE_REG(par, (BT463_ADDR_HI<<10) | (a >> 8), TGA_RAMDAC_REG); +} + +static inline void +BT463_WRITE(struct tga_par *par, u32 m, u16 a, u8 v) +{ + BT463_LOAD_ADDR(par, a); + TGA_WRITE_REG(par, m << 2, TGA_RAMDAC_SETUP_REG); + TGA_WRITE_REG(par, m << 10 | v, TGA_RAMDAC_REG); +} + +#endif /* TGAFB_H */ |