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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _TDFX_H
#define _TDFX_H
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
/* membase0 register offsets */
#define STATUS 0x00
#define PCIINIT0 0x04
#define SIPMONITOR 0x08
#define LFBMEMORYCONFIG 0x0c
#define MISCINIT0 0x10
#define MISCINIT1 0x14
#define DRAMINIT0 0x18
#define DRAMINIT1 0x1c
#define AGPINIT 0x20
#define TMUGBEINIT 0x24
#define VGAINIT0 0x28
#define VGAINIT1 0x2c
#define DRAMCOMMAND 0x30
#define DRAMDATA 0x34
/* reserved 0x38 */
/* reserved 0x3c */
#define PLLCTRL0 0x40
#define PLLCTRL1 0x44
#define PLLCTRL2 0x48
#define DACMODE 0x4c
#define DACADDR 0x50
#define DACDATA 0x54
#define RGBMAXDELTA 0x58
#define VIDPROCCFG 0x5c
#define HWCURPATADDR 0x60
#define HWCURLOC 0x64
#define HWCURC0 0x68
#define HWCURC1 0x6c
#define VIDINFORMAT 0x70
#define VIDINSTATUS 0x74
#define VIDSERPARPORT 0x78
#define VIDINXDELTA 0x7c
#define VIDININITERR 0x80
#define VIDINYDELTA 0x84
#define VIDPIXBUFTHOLD 0x88
#define VIDCHRMIN 0x8c
#define VIDCHRMAX 0x90
#define VIDCURLIN 0x94
#define VIDSCREENSIZE 0x98
#define VIDOVRSTARTCRD 0x9c
#define VIDOVRENDCRD 0xa0
#define VIDOVRDUDX 0xa4
#define VIDOVRDUDXOFF 0xa8
#define VIDOVRDVDY 0xac
/* ... */
#define VIDOVRDVDYOFF 0xe0
#define VIDDESKSTART 0xe4
#define VIDDESKSTRIDE 0xe8
#define VIDINADDR0 0xec
#define VIDINADDR1 0xf0
#define VIDINADDR2 0xf4
#define VIDINSTRIDE 0xf8
#define VIDCUROVRSTART 0xfc
#define INTCTRL (0x00100000 + 0x04)
#define CLIP0MIN (0x00100000 + 0x08)
#define CLIP0MAX (0x00100000 + 0x0c)
#define DSTBASE (0x00100000 + 0x10)
#define DSTFORMAT (0x00100000 + 0x14)
#define SRCBASE (0x00100000 + 0x34)
#define COMMANDEXTRA_2D (0x00100000 + 0x38)
#define CLIP1MIN (0x00100000 + 0x4c)
#define CLIP1MAX (0x00100000 + 0x50)
#define SRCFORMAT (0x00100000 + 0x54)
#define SRCSIZE (0x00100000 + 0x58)
#define SRCXY (0x00100000 + 0x5c)
#define COLORBACK (0x00100000 + 0x60)
#define COLORFORE (0x00100000 + 0x64)
#define DSTSIZE (0x00100000 + 0x68)
#define DSTXY (0x00100000 + 0x6c)
#define COMMAND_2D (0x00100000 + 0x70)
#define LAUNCH_2D (0x00100000 + 0x80)
#define COMMAND_3D (0x00200000 + 0x120)
/* register bitfields (not all, only as needed) */
/* COMMAND_2D reg. values */
#define TDFX_ROP_COPY 0xcc /* src */
#define TDFX_ROP_INVERT 0x55 /* NOT dst */
#define TDFX_ROP_XOR 0x66 /* src XOR dst */
#define AUTOINC_DSTX BIT(10)
#define AUTOINC_DSTY BIT(11)
#define COMMAND_2D_FILLRECT 0x05
#define COMMAND_2D_S2S_BITBLT 0x01 /* screen to screen */
#define COMMAND_2D_H2S_BITBLT 0x03 /* host to screen */
#define COMMAND_3D_NOP 0x00
#define STATUS_RETRACE BIT(6)
#define STATUS_BUSY BIT(9)
#define MISCINIT1_CLUT_INV BIT(0)
#define MISCINIT1_2DBLOCK_DIS BIT(15)
#define DRAMINIT0_SGRAM_NUM BIT(26)
#define DRAMINIT0_SGRAM_TYPE BIT(27)
#define DRAMINIT0_SGRAM_TYPE_MASK (BIT(27) | BIT(28) | BIT(29))
#define DRAMINIT0_SGRAM_TYPE_SHIFT 27
#define DRAMINIT1_MEM_SDRAM BIT(30)
#define VGAINIT0_VGA_DISABLE BIT(0)
#define VGAINIT0_EXT_TIMING BIT(1)
#define VGAINIT0_8BIT_DAC BIT(2)
#define VGAINIT0_EXT_ENABLE BIT(6)
#define VGAINIT0_WAKEUP_3C3 BIT(8)
#define VGAINIT0_LEGACY_DISABLE BIT(9)
#define VGAINIT0_ALT_READBACK BIT(10)
#define VGAINIT0_FAST_BLINK BIT(11)
#define VGAINIT0_EXTSHIFTOUT BIT(12)
#define VGAINIT0_DECODE_3C6 BIT(13)
#define VGAINIT0_SGRAM_HBLANK_DISABLE BIT(22)
#define VGAINIT1_MASK 0x1fffff
#define VIDCFG_VIDPROC_ENABLE BIT(0)
#define VIDCFG_CURS_X11 BIT(1)
#define VIDCFG_INTERLACE BIT(3)
#define VIDCFG_HALF_MODE BIT(4)
#define VIDCFG_DESK_ENABLE BIT(7)
#define VIDCFG_CLUT_BYPASS BIT(10)
#define VIDCFG_2X BIT(26)
#define VIDCFG_HWCURSOR_ENABLE BIT(27)
#define VIDCFG_PIXFMT_SHIFT 18
#define DACMODE_2X BIT(0)
/* I2C bit locations in the VIDSERPARPORT register */
#define DDC_ENAB 0x00040000
#define DDC_SCL_OUT 0x00080000
#define DDC_SDA_OUT 0x00100000
#define DDC_SCL_IN 0x00200000
#define DDC_SDA_IN 0x00400000
#define I2C_ENAB 0x00800000
#define I2C_SCL_OUT 0x01000000
#define I2C_SDA_OUT 0x02000000
#define I2C_SCL_IN 0x04000000
#define I2C_SDA_IN 0x08000000
/* VGA rubbish, need to change this for multihead support */
#define MISC_W 0x3c2
#define MISC_R 0x3cc
#define SEQ_I 0x3c4
#define SEQ_D 0x3c5
#define CRT_I 0x3d4
#define CRT_D 0x3d5
#define ATT_IW 0x3c0
#define IS1_R 0x3da
#define GRA_I 0x3ce
#define GRA_D 0x3cf
#ifdef __KERNEL__
struct banshee_reg {
/* VGA rubbish */
unsigned char att[21];
unsigned char crt[25];
unsigned char gra[9];
unsigned char misc[1];
unsigned char seq[5];
/* Banshee extensions */
unsigned char ext[2];
unsigned long vidcfg;
unsigned long vidpll;
unsigned long mempll;
unsigned long gfxpll;
unsigned long dacmode;
unsigned long vgainit0;
unsigned long vgainit1;
unsigned long screensize;
unsigned long stride;
unsigned long cursloc;
unsigned long curspataddr;
unsigned long cursc0;
unsigned long cursc1;
unsigned long startaddr;
unsigned long clip0min;
unsigned long clip0max;
unsigned long clip1min;
unsigned long clip1max;
unsigned long miscinit0;
};
struct tdfx_par;
struct tdfxfb_i2c_chan {
struct tdfx_par *par;
struct i2c_adapter adapter;
struct i2c_algo_bit_data algo;
};
struct tdfx_par {
u32 max_pixclock;
u32 palette[16];
void __iomem *regbase_virt;
unsigned long iobase;
int wc_cookie;
#ifdef CONFIG_FB_3DFX_I2C
struct tdfxfb_i2c_chan chan[2];
#endif
};
#endif /* __KERNEL__ */
#endif /* _TDFX_H */
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