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/* sun_cg_common.h
* contains the definitions of the structures that various sun
* frame buffer can use to do console driver stuff.
*
* This is not in sun_framebuffer.h because you may not want cgXX
* support so you wont require this.
*
*/
#define BT_D4M3(x) ((((x) >> 2) << 1) + ((x) >> 2)) /* (x / 4) * 3 */
#define BT_D4M4(x) ((x) & ~3) /* (x / 4) * 4 */
#define D4M3(x) ((((x)>>2)<<1) + ((x)>>2)) /* (x/4)*3 */
#define D4M4(x) ((x)&~0x3) /* (x/4)*4 */
struct bt_regs {
volatile unsigned int addr; /* address register */
volatile unsigned int color_map; /* color map */
volatile unsigned int control; /* control register */
volatile unsigned int cursor; /* cursor map register */
};
/* The cg3 driver, obio space addresses for mapping the cg3 stuff */
/* We put these constants here, because the cg14 driver initially will emulate a cg3 */
#define CG3_REGS 0x400000
#define CG3_RAM 0x800000
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