lxfb: add power management functionality

[net-next-2.6.git] / drivers / video / geode / lxfb.h

diff --git a/drivers/video/geode/lxfb.h b/drivers/video/geode/lxfb.h
index b3fbc56ccbd7ae5f81b6e29f04526dba56ef6185..3b9416f4ee20fba2143169e97b886633e4d63fa5 100644 (file)
--- a/drivers/video/geode/lxfb.h
+++ b/drivers/video/geode/lxfb.h
@@ -3,6 +3,16 @@
 
 #include <linux/fb.h>
 
+#define GP_REG_COUNT   (0x7c / 4)
+#define DC_REG_COUNT   (0xf0 / 4)
+#define VP_REG_COUNT   (0x158 / 8)
+#define FP_REG_COUNT   (0x60 / 8)
+
+#define DC_PAL_COUNT   0x104
+#define DC_HFILT_COUNT 0x100
+#define DC_VFILT_COUNT 0x100
+#define VP_COEFF_SIZE  0x1000
+
 #define OUTPUT_CRT   0x01
 #define OUTPUT_PANEL 0x02
 
@@ -12,6 +22,27 @@ struct lxfb_par {
        void __iomem *gp_regs;
        void __iomem *dc_regs;
        void __iomem *vp_regs;
+#ifdef CONFIG_PM
+       int powered_down;
+
+       /* register state, for power mgmt functionality */
+       struct {
+               uint64_t padsel;
+               uint64_t dotpll;
+               uint64_t dfglcfg;
+               uint64_t dcspare;
+       } 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];
+       uint32_t hcoeff[DC_HFILT_COUNT * 2];
+       uint32_t vcoeff[DC_VFILT_COUNT];
+       uint32_t vp_coeff[VP_COEFF_SIZE / 4];
+#endif
 };
 
 static inline unsigned int lx_get_pitch(unsigned int xres, int bpp)
@@ -27,6 +58,11 @@ int lx_blank_display(struct fb_info *, int);
 void lx_set_palette_reg(struct fb_info *, unsigned int, unsigned int,
                        unsigned int, unsigned int);
 
+#ifdef CONFIG_PM
+int lx_powerdown(struct fb_info *info);
+int lx_powerup(struct fb_info *info);
+#endif
+
 
 /* Graphics Processor registers (table 6-29 from the data book) */
 enum gp_registers {
@@ -182,6 +218,9 @@ enum dc_registers {
 #define DC_DV_CTL_DV_LINE_SIZE_2K      (1 << 10)
 #define DC_DV_CTL_DV_LINE_SIZE_4K      (1 << 11)
 #define DC_DV_CTL_DV_LINE_SIZE_8K      ((1 << 10) | (1 << 11))
+#define DC_DV_CTL_CLEAR_DV_RAM         (1 << 0)
+
+#define DC_IRQ_FILT_CTL_H_FILT_SEL     (1 << 10)
 
 #define DC_CLR_KEY_CLR_KEY_EN          (1 << 24)
 
@@ -267,6 +306,8 @@ enum vp_registers {
        VP_A2YE,
 
        VP_A3YE,        /* 0x150 */
+
+       VP_VCR = 0x1000, /* 0x1000 - 0x1fff */
 };
 
 #define VP_VCFG_VID_EN                 (1 << 0)
@@ -319,6 +360,10 @@ enum fp_registers {
 #define FP_PT2_SCRC                    (1 << 27)       /* shfclk free */
 
 #define FP_PM_P                                (1 << 24)       /* panel power ctl */
+#define FP_PM_PANEL_PWR_UP             (1 << 3)        /* r/o */
+#define FP_PM_PANEL_PWR_DOWN           (1 << 2)        /* r/o */
+#define FP_PM_PANEL_OFF                        (1 << 1)        /* r/o */
+#define FP_PM_PANEL_ON                 (1 << 0)        /* r/o */
 
 #define FP_DFC_BC                      ((1 << 4) | (1 << 5) | (1 << 6))