diff options
Diffstat (limited to 'drivers/video/geode/gxfb.h')
-rw-r--r-- | drivers/video/geode/gxfb.h | 72 |
1 files changed, 71 insertions, 1 deletions
diff --git a/drivers/video/geode/gxfb.h b/drivers/video/geode/gxfb.h index b8db7f82646..16a96f8fd8c 100644 --- a/drivers/video/geode/gxfb.h +++ b/drivers/video/geode/gxfb.h @@ -13,10 +13,34 @@ #include <linux/io.h> +#define GP_REG_COUNT (0x50 / 4) +#define DC_REG_COUNT (0x90 / 4) +#define VP_REG_COUNT (0x138 / 8) +#define FP_REG_COUNT (0x68 / 8) + +#define DC_PAL_COUNT 0x104 + struct gxfb_par { int enable_crt; void __iomem *dc_regs; void __iomem *vid_regs; + void __iomem *gp_regs; +#ifdef CONFIG_PM + int powered_down; + + /* register state, for power management functionality */ + struct { + uint64_t padsel; + uint64_t dotpll; + } msr; + + uint32_t gp[GP_REG_COUNT]; + uint32_t dc[DC_REG_COUNT]; + uint64_t vp[VP_REG_COUNT]; + uint64_t fp[FP_REG_COUNT]; + + uint32_t pal[DC_PAL_COUNT]; +#endif }; unsigned int gx_frame_buffer_size(void); @@ -29,6 +53,43 @@ void gx_set_dclk_frequency(struct fb_info *info); void gx_configure_display(struct fb_info *info); int gx_blank_display(struct fb_info *info, int blank_mode); +#ifdef CONFIG_PM +int gx_powerdown(struct fb_info *info); +int gx_powerup(struct fb_info *info); +#endif + + +/* Graphics Processor registers (table 6-23 from the data book) */ +enum gp_registers { + GP_DST_OFFSET = 0, + GP_SRC_OFFSET, + GP_STRIDE, + GP_WID_HEIGHT, + + GP_SRC_COLOR_FG, + GP_SRC_COLOR_BG, + GP_PAT_COLOR_0, + GP_PAT_COLOR_1, + + GP_PAT_COLOR_2, + GP_PAT_COLOR_3, + GP_PAT_COLOR_4, + GP_PAT_COLOR_5, + + GP_PAT_DATA_0, + GP_PAT_DATA_1, + GP_RASTER_MODE, + GP_VECTOR_MODE, + + GP_BLT_MODE, + GP_BLT_STATUS, + GP_HST_SRC, + GP_BASE_OFFSET, /* 0x4c */ +}; + +#define GP_BLT_STATUS_BLT_PENDING (1 << 2) +#define GP_BLT_STATUS_BLT_BUSY (1 << 0) + /* Display Controller registers (table 6-38 from the data book) */ enum dc_registers { @@ -238,6 +299,16 @@ enum fp_registers { /* register access functions */ +static inline uint32_t read_gp(struct gxfb_par *par, int reg) +{ + return readl(par->gp_regs + 4*reg); +} + +static inline void write_gp(struct gxfb_par *par, int reg, uint32_t val) +{ + writel(val, par->gp_regs + 4*reg); +} + static inline uint32_t read_dc(struct gxfb_par *par, int reg) { return readl(par->dc_regs + 4*reg); @@ -248,7 +319,6 @@ static inline void write_dc(struct gxfb_par *par, int reg, uint32_t val) writel(val, par->dc_regs + 4*reg); } - static inline uint32_t read_vp(struct gxfb_par *par, int reg) { return readl(par->vid_regs + 8*reg); |