
#include <xf86RamDac.h>

RamDacHelperRecPtr IBMramdacProbe(ScrnInfoPtr pScrn, RamDacSupportedInfoRecPtr ramdacs);
void IBMramdacSave(ScrnInfoPtr pScrn, RamDacRecPtr RamDacRec, RamDacRegRecPtr RamDacRegRec);
void IBMramdacRestore(ScrnInfoPtr pScrn, RamDacRecPtr RamDacRec, RamDacRegRecPtr RamDacRegRec);
void IBMramdac526SetBpp(ScrnInfoPtr pScrn, RamDacRegRecPtr RamDacRegRec);
void IBMramdac640SetBpp(ScrnInfoPtr pScrn, RamDacRegRecPtr RamDacRegRec);
unsigned long IBMramdac526CalculateMNPCForClock(unsigned long RefClock,
    unsigned long ReqClock, char IsPixClock, unsigned long MinClock,
    unsigned long MaxClock, unsigned long *rM, unsigned long *rN,
    unsigned long *rP, unsigned long *rC);
unsigned long IBMramdac640CalculateMNPCForClock(unsigned long RefClock,
    unsigned long ReqClock, char IsPixClock, unsigned long MinClock,
    unsigned long MaxClock, unsigned long *rM, unsigned long *rN,
    unsigned long *rP, unsigned long *rC);
void IBMramdac526HWCursorInit(xf86CursorInfoPtr infoPtr);
void IBMramdac640HWCursorInit(xf86CursorInfoPtr infoPtr);

typedef void IBMramdac526SetBppProc(ScrnInfoPtr, RamDacRegRecPtr);
IBMramdac526SetBppProc *IBMramdac526SetBppWeak(void);

#define IBM524_RAMDAC		((VENDOR_IBM << 16) | 0x00)
#define IBM524A_RAMDAC		((VENDOR_IBM << 16) | 0x01)
#define IBM525_RAMDAC		((VENDOR_IBM << 16) | 0x02)
#define IBM526_RAMDAC		((VENDOR_IBM << 16) | 0x03)
#define IBM526DB_RAMDAC		((VENDOR_IBM << 16) | 0x04)
#define IBM528_RAMDAC		((VENDOR_IBM << 16) | 0x05)
#define IBM528A_RAMDAC		((VENDOR_IBM << 16) | 0x06)
#define IBM624_RAMDAC		((VENDOR_IBM << 16) | 0x07)
#define IBM624DB_RAMDAC		((VENDOR_IBM << 16) | 0x08)
#define IBM640_RAMDAC		((VENDOR_IBM << 16) | 0x09)

/*
 * IBM Ramdac registers
 */

#define IBMRGB_REF_FREQ_1       14.31818
#define IBMRGB_REF_FREQ_2       50.00000

#define IBMRGB_rev		0x00
#define IBMRGB_id		0x01
#define IBMRGB_misc_clock	0x02
#define IBMRGB_sync		0x03
#define IBMRGB_hsync_pos	0x04
#define IBMRGB_pwr_mgmt		0x05
#define IBMRGB_dac_op		0x06
#define IBMRGB_pal_ctrl		0x07
#define IBMRGB_sysclk		0x08  /* not RGB525 */
#define IBMRGB_pix_fmt		0x0a
#define IBMRGB_8bpp		0x0b
#define IBMRGB_16bpp		0x0c
#define IBMRGB_24bpp		0x0d
#define IBMRGB_32bpp		0x0e
#define IBMRGB_pll_ctrl1	0x10
#define IBMRGB_pll_ctrl2	0x11
#define IBMRGB_pll_ref_div_fix	0x14
#define IBMRGB_sysclk_ref_div	0x15  /* not RGB525 */
#define IBMRGB_sysclk_vco_div	0x16  /* not RGB525 */
/* #define IBMRGB_f0		0x20 */

#define IBMRGB_sysclk_n		0x15
#define IBMRGB_sysclk_m		0x16
#define IBMRGB_sysclk_p		0x17
#define IBMRGB_sysclk_c		0x18

#define IBMRGB_m0		0x20
#define IBMRGB_n0		0x21
#define IBMRGB_p0		0x22
#define IBMRGB_c0		0x23
#define IBMRGB_m1		0x24
#define IBMRGB_n1		0x25
#define IBMRGB_p1		0x26
#define IBMRGB_c1		0x27
#define IBMRGB_m2		0x28
#define IBMRGB_n2		0x29
#define IBMRGB_p2		0x2a
#define IBMRGB_c2		0x2b
#define IBMRGB_m3		0x2c
#define IBMRGB_n3		0x2d
#define IBMRGB_p3		0x2e
#define IBMRGB_c3		0x2f

#define IBMRGB_curs		0x30
#define IBMRGB_curs_xl		0x31
#define IBMRGB_curs_xh		0x32
#define IBMRGB_curs_yl		0x33
#define IBMRGB_curs_yh		0x34
#define IBMRGB_curs_hot_x	0x35
#define IBMRGB_curs_hot_y	0x36
#define IBMRGB_curs_col1_r	0x40
#define IBMRGB_curs_col1_g	0x41
#define IBMRGB_curs_col1_b	0x42
#define IBMRGB_curs_col2_r	0x43
#define IBMRGB_curs_col2_g	0x44
#define IBMRGB_curs_col2_b	0x45
#define IBMRGB_curs_col3_r	0x46
#define IBMRGB_curs_col3_g	0x47
#define IBMRGB_curs_col3_b	0x48
#define IBMRGB_border_col_r	0x60
#define IBMRGB_border_col_g	0x61
#define IBMRGB_botder_col_b	0x62
#define IBMRGB_key		0x68
#define IBMRGB_key_mask		0x6C
#define IBMRGB_misc1		0x70
#define IBMRGB_misc2		0x71
#define IBMRGB_misc3		0x72
#define IBMRGB_misc4		0x73  /* not RGB525 */
#define IBMRGB_key_control	0x78
#define IBMRGB_dac_sense	0x82
#define IBMRGB_misr_r		0x84
#define IBMRGB_misr_g		0x86
#define IBMRGB_misr_b		0x88
#define IBMRGB_pll_vco_div_in	0x8e
#define IBMRGB_pll_ref_div_in	0x8f
#define IBMRGB_vram_mask_0	0x90
#define IBMRGB_vram_mask_1	0x91
#define IBMRGB_vram_mask_2	0x92
#define IBMRGB_vram_mask_3	0x93
#define IBMRGB_curs_array	0x100



/* Constants rgb525.h */  

/* RGB525_REVISION_LEVEL */
#define RGB525_PRODUCT_REV_LEVEL        0xf0

/* RGB525_ID */
#define RGB525_PRODUCT_ID               0x01

/* RGB525_MISC_CTRL_1 */
#define MISR_CNTL_ENABLE                0x80
#define VMSK_CNTL_ENABLE                0x40
#define PADR_RDMT_RDADDR                0x0
#define PADR_RDMT_PAL_STATE             0x20
#define SENS_DSAB_DISABLE               0x10
#define SENS_SEL_BIT3                   0x0
#define SENS_SEL_BIT7                   0x08
#define VRAM_SIZE_32                    0x0
#define VRAM_SIZE_64                    0x01

/* RGB525_MISC_CTRL_2 */
#define PCLK_SEL_LCLK                   0x0
#define PCLK_SEL_PLL                    0x40
#define PCLK_SEL_EXT                    0x80
#define INTL_MODE_ENABLE                0x20
#define BLANK_CNTL_ENABLE               0x10
#define COL_RES_6BIT                    0x0
#define COL_RES_8BIT                    0x04
#define PORT_SEL_VGA                    0x0
#define PORT_SEL_VRAM                   0x01

/* RGB525_MISC_CTRL_3 */
#define SWAP_RB                         0x80
#define SWAP_WORD_LOHI                  0x0
#define SWAP_WORD_HILO                  0x10
#define SWAP_NIB_HILO                   0x0
#define SWAP_NIB_LOHI                   0x02

/* RGB525_MISC_CLK_CTRL */
#define DDOT_CLK_ENABLE                 0x0
#define DDOT_CLK_DISABLE                0x80
#define SCLK_ENABLE                     0x0
#define SCLK_DISABLE                    0x40
#define B24P_DDOT_PLL                   0x0
#define B24P_DDOT_SCLK                  0x20
#define DDOT_DIV_PLL_1                  0x0
#define DDOT_DIV_PLL_2                  0x02
#define DDOT_DIV_PLL_4                  0x04
#define DDOT_DIV_PLL_8                  0x06
#define DDOT_DIV_PLL_16                 0x08
#define PLL_DISABLE                     0x0
#define PLL_ENABLE                      0x01

/* RGB525_SYNC_CTRL */
#define DLY_CNTL_ADD                    0x0
#define DLY_SYNC_NOADD                  0x80
#define CSYN_INVT_DISABLE               0x0
#define CSYN_INVT_ENABLE                0x40
#define VSYN_INVT_DISABLE               0x0
#define VSYN_INVT_ENABLE                0x20
#define HSYN_INVT_DISABLE               0x0
#define HSYN_INVT_ENABLE                0x10
#define VSYN_CNTL_NORMAL                0x0
#define VSYN_CNTL_HIGH                  0x04
#define VSYN_CNTL_LOW                   0x08
#define VSYN_CNTL_DISABLE               0x0C
#define HSYN_CNTL_NORMAL                0x0
#define HSYN_CNTL_HIGH                  0x01
#define HSYN_CNTL_LOW                   0x02
#define HSYN_CNTL_DISABLE               0x03

/* RGB525_HSYNC_CTRL */
#define HSYN_POS(n)                     (n)

/* RGB525_POWER_MANAGEMENT */
#define SCLK_PWR_NORMAL                 0x0
#define SCLK_PWR_DISABLE                0x10
#define DDOT_PWR_NORMAL                 0x0
#define DDOT_PWR_DISABLE                0x08
#define SYNC_PWR_NORMAL                 0x0
#define SYNC_PWR_DISABLE                0x04
#define ICLK_PWR_NORMAL                 0x0
#define ICLK_PWR_DISABLE                0x02
#define DAC_PWR_NORMAL                  0x0
#define DAC_PWR_DISABLE                 0x01

/* RGB525_DAC_OPERATION */
#define SOG_DISABLE                     0x0
#define SOG_ENABLE                      0x08
#define BRB_NORMAL                      0x0
#define BRB_ALWAYS                      0x04
#define DSR_DAC_SLOW                    0x02
#define DSR_DAC_FAST                    0x0
#define DPE_DISABLE                     0x0
#define DPE_ENABLE                      0x01

/* RGB525_PALETTE_CTRL */
#define SIXBIT_LINEAR_ENABLE            0x0
#define SIXBIT_LINEAR_DISABLE           0x80
#define PALETTE_PARITION(n)             (n)

/* RGB525_PIXEL_FORMAT */
#define PIXEL_FORMAT_4BPP               0x02
#define PIXEL_FORMAT_8BPP               0x03
#define PIXEL_FORMAT_16BPP              0x04
#define PIXEL_FORMAT_24BPP              0x05
#define PIXEL_FORMAT_32BPP              0x06

/* RGB525_8BPP_CTRL */
#define B8_DCOL_INDIRECT                0x0
#define B8_DCOL_DIRECT                  0x01

/* RGB525_16BPP_CTRL */
#define B16_DCOL_INDIRECT               0x0
#define B16_DCOL_DYNAMIC                0x40
#define B16_DCOL_DIRECT                 0xC0
#define B16_POL_FORCE_BYPASS            0x0
#define B16_POL_FORCE_LOOKUP            0x20
#define B16_ZIB                         0x0
#define B16_LINEAR                      0x04
#define B16_555                         0x0
#define B16_565                         0x02
#define B16_SPARSE                      0x0
#define B16_CONTIGUOUS                  0x01

/* RGB525_24BPP_CTRL */
#define B24_DCOL_INDIRECT               0x0
#define B24_DCOL_DIRECT                 0x01

/* RGB525_32BPP_CTRL */
#define B32_POL_FORCE_BYPASS            0x0
#define B32_POL_FORCE_LOOKUP            0x04
#define B32_DCOL_INDIRECT               0x0
#define B32_DCOL_DYNAMIC                0x01
#define B32_DCOL_DIRECT                 0x03

/* RGB525_PLL_CTRL_1 */
#define REF_SRC_REFCLK                  0x0
#define REF_SRC_EXTCLK                  0x10
#define PLL_EXT_FS_3_0                  0x0
#define PLL_EXT_FS_2_0                  0x01
#define PLL_CNTL2_3_0                   0x02
#define PLL_CNTL2_2_0                   0x03

/* RGB525_PLL_CTRL_2 */
#define PLL_INT_FS_3_0(n)               (n)
#define PLL_INT_FS_2_0(n)               (n)

/* RGB525_PLL_REF_DIV_COUNT */
#define REF_DIV_COUNT(n)                (n)

/* RGB525_F0 - RGB525_F15 */
#define VCO_DIV_COUNT(n)                (n)

/* RGB525_PLL_REFCLK values */
#define RGB525_PLL_REFCLK_MHz(n)        ((n)/2)

/* RGB525_CURSOR_CONTROL */
#define SMLC_PART_0                     0x0
#define SMLC_PART_1                     0x40
#define SMLC_PART_2                     0x80
#define SMLC_PART_3                     0xC0
#define PIX_ORDER_RL                    0x0
#define PIX_ORDER_LR                    0x20
#define LOC_READ_LAST                   0x0
#define LOC_READ_ACTUAL                 0x10
#define UPDT_CNTL_DELAYED               0x0
#define UPDT_CNTL_IMMEDIATE             0x08
#define CURSOR_SIZE_32                  0x0
#define CURSOR_SIZE_64                  0x40
#define CURSOR_MODE_OFF                 0x0
#define CURSOR_MODE_3_COLOR             0x01
#define CURSOR_MODE_2_COLOR_HL          0x02
#define CURSOR_MODE_2_COLOR             0x03

/* RGB525_REVISION_LEVEL */
#define REVISION_LEVEL                  0xF0    /* predefined */

/* RGB525_ID */
#define ID_CODE                         0x01    /* predefined */

/* MISR status */
#define RGB525_MISR_DONE                0x01

/* the IBMRGB640 is rather different from the rest of the RAMDACs,
   so we define a completely new set of register names for it */
#define RGB640_SER_07_00		0x02
#define RGB640_SER_15_08		0x03
#define RGB640_SER_23_16		0x04
#define RGB640_SER_31_24		0x05
#define RGB640_SER_WID_03_00		0x06
#define RGB640_SER_WID_07_04		0x07
#define RGB640_SER_MODE			0x08
#define		IBM640_SER_2_1	0x00
#define		IBM640_SER_4_1	0x01
#define		IBM640_SER_8_1	0x02
#define		IBM640_SER_16_1	0x03
#define		IBM640_SER_16_3	0x05
#define		IBM640_SER_5_1	0x06
#define RGB640_PIXEL_INTERLEAVE		0x09
#define RGB640_MISC_CONF		0x0a
#define		IBM640_PCLK		0x00
#define		IBM640_PCLK_2		0x40
#define		IBM640_PCLK_4		0x80
#define		IBM640_PCLK_8		0xc0
#define		IBM640_PSIZE10		0x10
#define		IBM640_LCI		0x08
#define		IBM640_WIDCTL_MASK	0x07
#define RGB640_VGA_CONTROL		0x0b
#define 	IBM640_RDBK	0x04
#define 	IBM640_PSIZE8	0x02
#define		IBM640_VRAM	0x01
#define RGB640_DAC_CONTROL		0x0d
#define		IBM640_MONO	0x08
#define		IBM640_DACENBL	0x04
#define		IBM640_SHUNT	0x02
#define		IBM640_SLOWSLEW	0x01
#define RGB640_OUTPUT_CONTROL		0x0e
#define		IBM640_RDAI	0x04
#define		IBM640_WDAI	0x02
#define		IBM640_WATCTL	0x01
#define RGB640_SYNC_CONTROL		0x0f
#define		IBM640_PWR	0x20
#define		IBM640_VSP	0x10
#define		IBM640_HSP	0x08
#define		IBM640_CSE	0x04
#define		IBM640_CSG	0x02
#define		IBM640_BPE	0x01
#define RGB640_PLL_N			0x10
#define RGB640_PLL_M			0x11
#define RGB640_PLL_P			0x12
#define RGB640_PLL_CTL			0x13
#define 	IBM640_PLL_EN	0x04
#define		IBM640_PLL_HIGH	0x10
#define		IBM640_PLL_LOW	0x01
#define RGB640_AUX_PLL_CTL		0x17
#define		IBM640_AUXPLL	0x04
#define		IBM640_AUX_HI	0x02
#define		IBM640_AUX_LO	0x01
#define RGB640_CHROMA_KEY0		0x20
#define RGB640_CHROMA_MASK0		0x21
#define RGB640_CURS_X_LOW		0x40
#define RGB640_CURS_X_HIGH		0x41
#define RGB640_CURS_Y_LOW		0x42
#define RGB640_CURS_Y_HIGH		0x43
#define RGB640_CURS_OFFSETX		0x44
#define RGB640_CURS_OFFSETY		0x45
#define RGB640_CURSOR_CONTROL		0x4B
#define		IBM640_CURS_OFF		0x00
#define		IBM640_CURS_MODE0	0x01
#define		IBM640_CURS_MODE1	0x02
#define		IBM640_CURS_MODE2	0x03
#define		IBM640_CURS_ADV		0x04
#define RGB640_CROSSHAIR_CONTROL	0x57
#define RGB640_VRAM_MASK0		0xf0
#define RGB640_VRAM_MASK1		0xf1
#define RGB640_VRAM_MASK2		0xf2
#define RGB640_DIAGS			0xfa
#define RGB640_CURS_WRITE		0x1000
#define RGB640_CURS_COL0		0x4800
#define RGB640_CURS_COL1		0x4801
#define RGB640_CURS_COL2		0x4802
#define RGB640_CURS_COL3		0x4803
