lxfb: clean up register definitions

 - Rename various bitfield defines to match the data sheet names.
 - Rename DF_ register definitions to VP_ to match the data sheet;
   ie, DF_PAR -> VP_PAR.
 - for GP/DC registers, rather than defining to specific addresses, use
   an enum to number them sequentially and just multiply by 4 (bytes) to
   access them (in read_*/write_* functions).
 - for VP/FP registers, use an enum and multiple by 8 (bytes).  They're
   64bit registers.

Signed-off-by: Andres Salomon <dilinger@debian.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Cc: Jordan Crouse <jordan.crouse@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 269 insertions, 108 deletions

diff --git a/drivers/video/geode/lxfb.h b/drivers/video/geode/lxfb.h
index 60579f4d004a..6eac13d0ffb4 100644
--- a/drivers/video/geode/lxfb.h
+++ b/drivers/video/geode/lxfb.h
@@ -54,181 +54,342 @@ void lx_set_palette_reg(struct fb_info *, unsigned int, unsigned int,
 #define DC_SPARE_PIX8_PAN_FIX              0x00000010
 #define DC_SPARE_FIRST_REQ_MASK            0x00000002
 
-/* Registers */
 
-#define DC_UNLOCK         0x00
-#define  DC_UNLOCK_CODE   0x4758
+/* Graphics Processor registers (table 6-29 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,
+
+        GP_CMD_TOP,
+        GP_CMD_BOT,
+        GP_CMD_READ,
+        GP_CMD_WRITE,
+
+        GP_CH3_OFFSET,
+        GP_CH3_MODE_STR,
+        GP_CH3_WIDHI,
+        GP_CH3_HSRC,
+
+        GP_LUT_INDEX,
+        GP_LUT_DATA,
+        GP_INT_CNTRL, /* 0x78 */
+};
+
+#define GP_BLT_STATUS_CE                (1 << 4)        /* cmd buf empty */
+#define GP_BLT_STATUS_PB                (1 << 0)        /* primative busy */
+
+
+/* Display Controller registers (table 6-47 from the data book) */
+enum dc_registers {
+        DC_UNLOCK = 0,
+        DC_GENERAL_CFG,
+        DC_DISPLAY_CFG,
+        DC_ARB_CFG,
+
+        DC_FB_ST_OFFSET,
+        DC_CB_ST_OFFSET,
+        DC_CURS_ST_OFFSET,
+        DC_RSVD_0,
+
+        DC_VID_Y_ST_OFFSET,
+        DC_VID_U_ST_OFFSET,
+        DC_VID_V_ST_OFFSET,
+        DC_DV_TOP,
+
+        DC_LINE_SIZE,
+        DC_GFX_PITCH,
+        DC_VID_YUV_PITCH,
+        DC_RSVD_1,
+
+        DC_H_ACTIVE_TIMING,
+        DC_H_BLANK_TIMING,
+        DC_H_SYNC_TIMING,
+        DC_RSVD_2,
+
+        DC_V_ACTIVE_TIMING,
+        DC_V_BLANK_TIMING,
+        DC_V_SYNC_TIMING,
+        DC_FB_ACTIVE,
+
+        DC_CURSOR_X,
+        DC_CURSOR_Y,
+        DC_RSVD_3,
+        DC_LINE_CNT,
+
+        DC_PAL_ADDRESS,
+        DC_PAL_DATA,
+        DC_DFIFO_DIAG,
+        DC_CFIFO_DIAG,
+
+        DC_VID_DS_DELTA,
+        DC_GLIU0_MEM_OFFSET,
+        DC_DV_CTL,
+        DC_DV_ACCESS,
+
+        DC_GFX_SCALE,
+        DC_IRQ_FILT_CTL,
+        DC_FILT_COEFF1,
+        DC_FILT_COEFF2,
+
+        DC_VBI_EVEN_CTL,
+        DC_VBI_ODD_CTL,
+        DC_VBI_HOR,
+        DC_VBI_LN_ODD,
+
+        DC_VBI_LN_EVEN,
+        DC_VBI_PITCH,
+        DC_CLR_KEY,
+        DC_CLR_KEY_MASK,
+
+        DC_CLR_KEY_X,
+        DC_CLR_KEY_Y,
+        DC_IRQ,
+        DC_RSVD_4,
+
+        DC_RSVD_5,
+        DC_GENLK_CTL,
+        DC_VID_EVEN_Y_ST_OFFSET,
+        DC_VID_EVEN_U_ST_OFFSET,
+
+        DC_VID_EVEN_V_ST_OFFSET,
+        DC_V_ACTIVE_EVEN_TIMING,
+        DC_V_BLANK_EVEN_TIMING,
+        DC_V_SYNC_EVEN_TIMING,  /* 0xec */
+};
+
+#define DC_UNLOCK_LOCK                  0x00000000
+#define DC_UNLOCK_UNLOCK                0x00004758      /* magic value */
+
+#define DC_GENERAL_CFG_FDTY             (1 << 17)
+#define DC_GENERAL_CFG_DFHPEL_SHIFT     (12)
+#define DC_GENERAL_CFG_DFHPSL_SHIFT     (8)
+#define DC_GENERAL_CFG_VGAE             (1 << 7)
+#define DC_GENERAL_CFG_DECE             (1 << 6)
+#define DC_GENERAL_CFG_CMPE             (1 << 5)
+#define DC_GENERAL_CFG_VIDE             (1 << 3)
+#define DC_GENERAL_CFG_DFLE             (1 << 0)
 
-#define DC_GENERAL_CFG    0x04
-#define  DC_GCFG_DFLE     (1 << 0)
-#define  DC_GCFG_VIDE     (1 << 3)
-#define  DC_GCFG_VGAE     (1 << 7)
-#define  DC_GCFG_CMPE     (1 << 5)
-#define  DC_GCFG_DECE     (1 << 6)
-#define  DC_GCFG_FDTY     (1 << 17)
+#define DC_DISPLAY_CFG_VISL             (1 << 27)
+#define DC_DISPLAY_CFG_PALB             (1 << 25)
+#define DC_DISPLAY_CFG_DCEN             (1 << 24)
+#define DC_DISPLAY_CFG_DISP_MODE_24BPP  (1 << 9)
+#define DC_DISPLAY_CFG_DISP_MODE_16BPP  (1 << 8)
+#define DC_DISPLAY_CFG_DISP_MODE_8BPP   (0)
+#define DC_DISPLAY_CFG_TRUP             (1 << 6)
+#define DC_DISPLAY_CFG_VDEN             (1 << 4)
+#define DC_DISPLAY_CFG_GDEN             (1 << 3)
+#define DC_DISPLAY_CFG_TGEN             (1 << 0)
 
-#define DC_DISPLAY_CFG    0x08
-#define  DC_DCFG_TGEN     (1 << 0)
-#define  DC_DCFG_GDEN     (1 << 3)
-#define  DC_DCFG_VDEN     (1 << 4)
-#define  DC_DCFG_TRUP     (1 << 6)
-#define  DC_DCFG_DCEN     (1 << 24)
-#define  DC_DCFG_PALB     (1 << 25)
-#define  DC_DCFG_VISL     (1 << 27)
+#define DC_DV_TOP_DV_TOP_EN             (1 << 0)
 
-#define  DC_DCFG_16BPP           0x0
+#define DC_DV_CTL_DV_LINE_SIZE          ((1 << 10) | (1 << 11))
+#define DC_DV_CTL_DV_LINE_SIZE_1K       (0)
+#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_DCFG_DISP_MODE_MASK  0x00000300
-#define  DC_DCFG_DISP_MODE_8BPP  0x00000000
-#define  DC_DCFG_DISP_MODE_16BPP 0x00000100
-#define  DC_DCFG_DISP_MODE_24BPP 0x00000200
-#define  DC_DCFG_DISP_MODE_32BPP 0x00000300
+#define DC_CLR_KEY_CLR_KEY_EN           (1 << 24)
 
+#define DC_IRQ_VIP_VSYNC_IRQ_STATUS     (1 << 21)       /* undocumented? */
+#define DC_IRQ_STATUS                   (1 << 20)       /* undocumented? */
+#define DC_IRQ_VIP_VSYNC_LOSS_IRQ_MASK  (1 << 1)
+#define DC_IRQ_MASK                     (1 << 0)
 
-#define DC_ARB_CFG        0x0C
+#define DC_GENLK_CTL_FLICK_SEL_MASK     (0x0F << 28)
+#define DC_GENLK_CTL_ALPHA_FLICK_EN     (1 << 25)
+#define DC_GENLK_CTL_FLICK_EN           (1 << 24)
+#define DC_GENLK_CTL_GENLK_EN           (1 << 18)
 
-#define DC_FB_START       0x10
-#define DC_CB_START       0x14
-#define DC_CURSOR_START   0x18
 
-#define DC_DV_TOP          0x2C
-#define DC_DV_TOP_ENABLE   (1 << 0)
+/*
+ * Video Processor registers (table 6-71).
+ * There is space for 64 bit values, but we never use more than the
+ * lower 32 bits.  The actual register save/restore code only bothers
+ * to restore those 32 bits.
+ */
+enum vp_registers {
+        VP_VCFG = 0,
+        VP_DCFG,
 
-#define DC_LINE_SIZE       0x30
-#define DC_GRAPHICS_PITCH  0x34
-#define DC_H_ACTIVE_TIMING 0x40
-#define DC_H_BLANK_TIMING  0x44
-#define DC_H_SYNC_TIMING   0x48
-#define DC_V_ACTIVE_TIMING 0x50
-#define DC_V_BLANK_TIMING  0x54
-#define DC_V_SYNC_TIMING   0x58
-#define DC_FB_ACTIVE       0x5C
+        VP_VX,
+        VP_VY,
 
-#define DC_PAL_ADDRESS     0x70
-#define DC_PAL_DATA        0x74
+        VP_SCL,
+        VP_VCK,
 
-#define DC_PHY_MEM_OFFSET  0x84
+        VP_VCM,
+        VP_PAR,
 
-#define DC_DV_CTL          0x88
-#define DC_DV_LINE_SIZE_MASK               0x00000C00
-#define DC_DV_LINE_SIZE_1024               0x00000000
-#define DC_DV_LINE_SIZE_2048               0x00000400
-#define DC_DV_LINE_SIZE_4096               0x00000800
-#define DC_DV_LINE_SIZE_8192               0x00000C00
+        VP_PDR,
+        VP_SLR,
 
+        VP_MISC,
+        VP_CCS,
 
-#define DC_GFX_SCALE       0x90
-#define DC_IRQ_FILT_CTL    0x94
+        VP_VYS,
+        VP_VXS,
 
+        VP_RSVD_0,
+        VP_VDC,
 
-#define DC_IRQ               0xC8
-#define  DC_IRQ_MASK         (1 << 0)
-#define  DC_VSYNC_IRQ_MASK   (1 << 1)
-#define  DC_IRQ_STATUS       (1 << 20)
-#define  DC_VSYNC_IRQ_STATUS (1 << 21)
+        VP_RSVD_1,
+        VP_CRC,
 
-#define DC_GENLCK_CTRL      0xD4
-#define  DC_GENLCK_ENABLE   (1 << 18)
-#define  DC_GC_ALPHA_FLICK_ENABLE  (1 << 25)
-#define  DC_GC_FLICKER_FILTER_ENABLE (1 << 24)
-#define  DC_GC_FLICKER_FILTER_MASK (0x0F << 28)
+        VP_CRC32,
+        VP_VDE,
 
-#define DC_COLOR_KEY       0xB8
-#define DC_CLR_KEY_ENABLE (1 << 24)
+        VP_CCK,
+        VP_CCM,
 
+        VP_CC1,
+        VP_CC2,
 
-#define DC3_DV_LINE_SIZE_MASK               0x00000C00
-#define DC3_DV_LINE_SIZE_1024               0x00000000
-#define DC3_DV_LINE_SIZE_2048               0x00000400
-#define DC3_DV_LINE_SIZE_4096               0x00000800
-#define DC3_DV_LINE_SIZE_8192               0x00000C00
+        VP_A1X,
+        VP_A1Y,
 
-#define DF_VIDEO_CFG       0x0
-#define  DF_VCFG_VID_EN    (1 << 0)
+        VP_A1C,
+        VP_A1T,
 
-#define DF_DISPLAY_CFG     0x08
+        VP_A2X,
+        VP_A2Y,
 
-#define DF_DCFG_CRT_EN     (1 << 0)
-#define DF_DCFG_HSYNC_EN   (1 << 1)
-#define DF_DCFG_VSYNC_EN   (1 << 2)
-#define DF_DCFG_DAC_BL_EN  (1 << 3)
-#define DF_DCFG_CRT_HSYNC_POL  (1 << 8)
-#define DF_DCFG_CRT_VSYNC_POL  (1 << 9)
-#define DF_DCFG_GV_PAL_BYP     (1 << 21)
+        VP_A2C,
+        VP_A2T,
 
-#define DF_DCFG_CRT_SYNC_SKW_INIT 0x10000
-#define DF_DCFG_CRT_SYNC_SKW_MASK  0x1c000
+        VP_A3X,
+        VP_A3Y,
 
-#define DF_DCFG_PWR_SEQ_DLY_INIT     0x80000
-#define DF_DCFG_PWR_SEQ_DLY_MASK     0xe0000
+        VP_A3C,
+        VP_A3T,
+
+        VP_VRR,
+        VP_AWT,
+
+        VP_VTM,
+        VP_VYE,
+
+        VP_A1YE,
+        VP_A2YE,
+
+        VP_A3YE,        /* 0x150 */
+};
 
-#define DF_MISC            0x50
+#define VP_VCFG_VID_EN                  (1 << 0)
 
-#define  DF_MISC_GAM_BYPASS (1 << 0)
-#define  DF_MISC_DAC_PWRDN  (1 << 10)
-#define  DF_MISC_A_PWRDN    (1 << 11)
+#define VP_DCFG_GV_GAM                  (1 << 21)
+#define VP_DCFG_PWR_SEQ_DELAY           ((1 << 17) | (1 << 18) | (1 << 19))
+#define VP_DCFG_PWR_SEQ_DELAY_DEFAULT   (1 << 19)       /* undocumented */
+#define VP_DCFG_CRT_SYNC_SKW            ((1 << 14) | (1 << 15) | (1 << 16))
+#define VP_DCFG_CRT_SYNC_SKW_DEFAULT    (1 << 16)
+#define VP_DCFG_CRT_VSYNC_POL           (1 << 9)
+#define VP_DCFG_CRT_HSYNC_POL           (1 << 8)
+#define VP_DCFG_DAC_BL_EN               (1 << 3)
+#define VP_DCFG_VSYNC_EN                (1 << 2)
+#define VP_DCFG_HSYNC_EN                (1 << 1)
+#define VP_DCFG_CRT_EN                  (1 << 0)
 
-#define DF_PAR             0x38
-#define DF_PDR             0x40
-#define DF_ALPHA_CONTROL_1 0xD8
-#define DF_VIDEO_REQUEST   0x120
+#define VP_MISC_APWRDN                  (1 << 11)
+#define VP_MISC_DACPWRDN                (1 << 10)
+#define VP_MISC_BYP_BOTH                (1 << 0)
 
-#define DF_PANEL_TIM1      0x400
-#define DF_DEFAULT_TFT_PMTIM1 0x0
 
-#define DF_PANEL_TIM2      0x408
-#define DF_DEFAULT_TFT_PMTIM2 0x08000000
+/*
+ * Flat Panel registers (table 6-71).
+ * Also 64 bit registers; see above note about 32-bit handling.
+ */
+
+/* we're actually in the VP register space, starting at address 0x400 */
+#define VP_FP_START     0x400
+
+enum fp_registers {
+        FP_PT1 = 0,
+        FP_PT2,
+
+        FP_PM,
+        FP_DFC,
+
+        FP_RSVD_0,
+        FP_RSVD_1,
+
+        FP_RSVD_2,
+        FP_RSVD_3,
+
+        FP_RSVD_4,
+        FP_DCA,
+
+        FP_DMD,
+        FP_CRC, /* 0x458 */
+};
+
+#define FP_PT2_SCRC                     (1 << 27)       /* shfclk free */
 
-#define DF_FP_PM             0x410
-#define  DF_FP_PM_P          (1 << 24)
+#define FP_PM_P                         (1 << 24)       /* panel power ctl */
 
-#define DF_DITHER_CONTROL    0x418
-#define DF_DEFAULT_TFT_DITHCTL                  0x00000070
-#define GP_BLT_STATUS      0x44
-#define  GP_BS_BLT_BUSY    (1 << 0)
-#define  GP_BS_CB_EMPTY    (1 << 4)
+#define FP_DFC_BC                       ((1 << 4) | (1 << 5) | (1 << 6))
 
 
 /* register access functions */
 
 static inline uint32_t read_gp(struct lxfb_par *par, int reg)
 {
-        return readl(par->gp_regs + reg);
+        return readl(par->gp_regs + 4*reg);
 }
 
 static inline void write_gp(struct lxfb_par *par, int reg, uint32_t val)
 {
-        writel(val, par->gp_regs + reg);
+        writel(val, par->gp_regs + 4*reg);
 }
 
 static inline uint32_t read_dc(struct lxfb_par *par, int reg)
 {
-        return readl(par->dc_regs + reg);
+        return readl(par->dc_regs + 4*reg);
 }
 
 static inline void write_dc(struct lxfb_par *par, int reg, uint32_t val)
 {
-        writel(val, par->dc_regs + reg);
+        writel(val, par->dc_regs + 4*reg);
 }
 
 static inline uint32_t read_vp(struct lxfb_par *par, int reg)
 {
-        return readl(par->df_regs + reg);
+        return readl(par->df_regs + 8*reg);
 }
 
 static inline void write_vp(struct lxfb_par *par, int reg, uint32_t val)
 {
-        writel(val, par->df_regs + reg);
+        writel(val, par->df_regs + 8*reg);
 }
 
 static inline uint32_t read_fp(struct lxfb_par *par, int reg)
 {
-        return readl(par->df_regs + reg);
+        return readl(par->df_regs + 8*reg + VP_FP_START);
 }
 
 static inline void write_fp(struct lxfb_par *par, int reg, uint32_t val)
 {
-        writel(val, par->df_regs + reg);
+        writel(val, par->df_regs + 8*reg + VP_FP_START);
 }
 
 #endif