From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Wed, 30 Aug 2017 08:25:59 +0000
Subject: Initial file dump from open source release

---
 drivers/video/savage/savagefb.h | 415 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 415 insertions(+)
 create mode 100644 drivers/video/savage/savagefb.h

(limited to 'drivers/video/savage/savagefb.h')

diff --git a/drivers/video/savage/savagefb.h b/drivers/video/savage/savagefb.h
new file mode 100644
index 00000000..dcaab901
--- /dev/null
+++ b/drivers/video/savage/savagefb.h
@@ -0,0 +1,415 @@
+/*
+ * linux/drivers/video/savagefb.h -- S3 Savage Framebuffer Driver
+ *
+ * Copyright (c) 2001  Denis Oliver Kropp <dok@convergence.de>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ */
+
+
+#ifndef __SAVAGEFB_H__
+#define __SAVAGEFB_H__
+
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/mutex.h>
+#include <video/vga.h>
+#include "../edid.h"
+
+#ifdef SAVAGEFB_DEBUG
+# define DBG(x)		printk (KERN_DEBUG "savagefb: %s\n", (x));
+#else
+# define DBG(x)
+# define SavagePrintRegs(...)
+#endif
+
+
+#define PCI_CHIP_SAVAGE4      0x8a22
+#define PCI_CHIP_SAVAGE3D     0x8a20
+#define PCI_CHIP_SAVAGE3D_MV  0x8a21
+#define PCI_CHIP_SAVAGE2000   0x9102
+#define PCI_CHIP_SAVAGE_MX_MV 0x8c10
+#define PCI_CHIP_SAVAGE_MX    0x8c11
+#define PCI_CHIP_SAVAGE_IX_MV 0x8c12
+#define PCI_CHIP_SAVAGE_IX    0x8c13
+#define PCI_CHIP_PROSAVAGE_PM 0x8a25
+#define PCI_CHIP_PROSAVAGE_KM 0x8a26
+#define PCI_CHIP_S3TWISTER_P  0x8d01
+#define PCI_CHIP_S3TWISTER_K  0x8d02
+#define PCI_CHIP_PROSAVAGE_DDR          0x8d03
+#define PCI_CHIP_PROSAVAGE_DDRK         0x8d04
+#define PCI_CHIP_SUPSAV_MX128		0x8c22
+#define PCI_CHIP_SUPSAV_MX64		0x8c24
+#define PCI_CHIP_SUPSAV_MX64C		0x8c26
+#define PCI_CHIP_SUPSAV_IX128SDR	0x8c2a
+#define PCI_CHIP_SUPSAV_IX128DDR	0x8c2b
+#define PCI_CHIP_SUPSAV_IX64SDR		0x8c2c
+#define PCI_CHIP_SUPSAV_IX64DDR		0x8c2d
+#define PCI_CHIP_SUPSAV_IXCSDR		0x8c2e
+#define PCI_CHIP_SUPSAV_IXCDDR		0x8c2f
+
+
+#define S3_SAVAGE_SERIES(chip)    ((chip>=S3_SAVAGE3D) && (chip<=S3_SAVAGE2000))
+
+#define S3_SAVAGE3D_SERIES(chip)  ((chip>=S3_SAVAGE3D) && (chip<=S3_SAVAGE_MX))
+
+#define S3_SAVAGE4_SERIES(chip)   ((chip>=S3_SAVAGE4) && (chip<=S3_PROSAVAGEDDR))
+
+#define S3_SAVAGE_MOBILE_SERIES(chip)  ((chip==S3_SAVAGE_MX) || (chip==S3_SUPERSAVAGE))
+
+#define S3_MOBILE_TWISTER_SERIES(chip) ((chip==S3_TWISTER) || (chip==S3_PROSAVAGEDDR))
+
+/* Chip tags.  These are used to group the adapters into
+ * related families.
+ */
+
+typedef enum {
+  S3_UNKNOWN = 0,
+  S3_SAVAGE3D,
+  S3_SAVAGE_MX,
+  S3_SAVAGE4,
+  S3_PROSAVAGE,
+  S3_TWISTER,
+  S3_PROSAVAGEDDR,
+  S3_SUPERSAVAGE,
+  S3_SAVAGE2000,
+  S3_LAST
+} savage_chipset;
+
+#define BIOS_BSIZE		     1024
+#define BIOS_BASE		     0xc0000
+
+#define SAVAGE_NEWMMIO_REGBASE_S3    0x1000000  /* 16MB */
+#define SAVAGE_NEWMMIO_REGBASE_S4    0x0000000
+#define SAVAGE_NEWMMIO_REGSIZE	     0x0080000  /* 512kb */
+#define SAVAGE_NEWMMIO_VGABASE	     0x8000
+
+#define BASE_FREQ		     14318
+#define HALF_BASE_FREQ               7159
+
+#define FIFO_CONTROL_REG	     0x8200
+#define MIU_CONTROL_REG		     0x8204
+#define STREAMS_TIMEOUT_REG	     0x8208
+#define MISC_TIMEOUT_REG	     0x820c
+
+#define MONO_PAT_0                   0xa4e8
+#define MONO_PAT_1                   0xa4ec
+
+#define MAXFIFO                      0x7f00
+
+#define BCI_CMD_NOP                  0x40000000
+#define BCI_CMD_SETREG               0x96000000
+#define BCI_CMD_RECT                 0x48000000
+#define BCI_CMD_RECT_XP              0x01000000
+#define BCI_CMD_RECT_YP              0x02000000
+#define BCI_CMD_SEND_COLOR           0x00008000
+#define BCI_CMD_DEST_GBD             0x00000000
+#define BCI_CMD_SRC_GBD              0x00000020
+#define BCI_CMD_SRC_SOLID            0x00000000
+#define BCI_CMD_SRC_MONO             0x00000060
+#define BCI_CMD_CLIP_NEW             0x00006000
+#define BCI_CMD_CLIP_LR              0x00004000
+
+#define BCI_CLIP_LR(l, r)            ((((r) << 16) | (l)) & 0x0FFF0FFF)
+#define BCI_CLIP_TL(t, l)            ((((t) << 16) | (l)) & 0x0FFF0FFF)
+#define BCI_CLIP_BR(b, r)            ((((b) << 16) | (r)) & 0x0FFF0FFF)
+#define BCI_W_H(w, h)                (((h) << 16) | ((w) & 0xFFF))
+#define BCI_X_Y(x, y)                (((y) << 16) | ((x) & 0xFFF))
+
+#define BCI_GBD1                     0xE0
+#define BCI_GBD2                     0xE1
+
+#define BCI_BUFFER_OFFSET            0x10000
+#define BCI_SIZE                     0x4000
+
+#define BCI_SEND(dw)                 writel(dw, par->bci_base + par->bci_ptr++)
+
+#define BCI_CMD_GET_ROP(cmd)         (((cmd) >> 16) & 0xFF)
+#define BCI_CMD_SET_ROP(cmd, rop)    ((cmd) |= ((rop & 0xFF) << 16))
+#define BCI_CMD_SEND_COLOR           0x00008000
+
+#define DISP_CRT     1
+#define DISP_LCD     2
+#define DISP_DFP     3
+
+struct xtimings {
+	unsigned int Clock;
+	unsigned int HDisplay;
+	unsigned int HSyncStart;
+	unsigned int HSyncEnd;
+	unsigned int HTotal;
+	unsigned int HAdjusted;
+	unsigned int VDisplay;
+	unsigned int VSyncStart;
+	unsigned int VSyncEnd;
+	unsigned int VTotal;
+	unsigned int sync;
+	int	       dblscan;
+	int	       interlaced;
+};
+
+struct savage_reg {
+	unsigned char MiscOutReg;     /* Misc */
+	unsigned char CRTC[25];       /* Crtc Controller */
+	unsigned char Sequencer[5];   /* Video Sequencer */
+	unsigned char Graphics[9];    /* Video Graphics */
+	unsigned char Attribute[21];  /* Video Attribute */
+
+	unsigned int mode, refresh;
+	unsigned char SR08, SR0E, SR0F;
+	unsigned char SR10, SR11, SR12, SR13, SR15, SR18, SR29, SR30;
+	unsigned char SR54[8];
+	unsigned char Clock;
+	unsigned char CR31, CR32, CR33, CR34, CR36, CR3A, CR3B, CR3C;
+	unsigned char CR40, CR41, CR42, CR43, CR45;
+	unsigned char CR50, CR51, CR53, CR55, CR58, CR5B, CR5D, CR5E;
+	unsigned char CR60, CR63, CR65, CR66, CR67, CR68, CR69, CR6D, CR6F;
+	unsigned char CR86, CR88;
+	unsigned char CR90, CR91, CRB0;
+	unsigned int  STREAMS[22];	/* yuck, streams regs */
+	unsigned int  MMPR0, MMPR1, MMPR2, MMPR3;
+};
+/* --------------------------------------------------------------------- */
+
+#define NR_PALETTE	256
+
+
+struct savagefb_par;
+
+struct savagefb_i2c_chan {
+	struct savagefb_par *par;
+	struct i2c_adapter adapter;
+	struct i2c_algo_bit_data algo;
+	volatile u8 __iomem *ioaddr;
+	u32   reg;
+};
+
+struct savagefb_par {
+	struct pci_dev *pcidev;
+	savage_chipset  chip;
+	struct savagefb_i2c_chan chan;
+	struct savage_reg state;
+	struct savage_reg save;
+	struct savage_reg initial;
+	struct vgastate vgastate;
+	struct mutex open_lock;
+	unsigned char   *edid;
+	u32 pseudo_palette[16];
+	u32 open_count;
+	int paletteEnabled;
+	int pm_state;
+	int display_type;
+	int dvi;
+	int crtonly;
+	int dacSpeedBpp;
+	int maxClock;
+	int minClock;
+	int numClocks;
+	int clock[4];
+	int MCLK, REFCLK, LCDclk;
+	struct {
+		void   __iomem *vbase;
+		u32    pbase;
+		u32    len;
+#ifdef CONFIG_MTRR
+		int    mtrr;
+#endif
+	} video;
+
+	struct {
+		void  __iomem *vbase;
+		u32           pbase;
+		u32           len;
+	} mmio;
+
+	volatile u32  __iomem *bci_base;
+	unsigned int  bci_ptr;
+	u32           cob_offset;
+	u32           cob_size;
+	int           cob_index;
+
+	void (*SavageWaitIdle) (struct savagefb_par *par);
+	void (*SavageWaitFifo) (struct savagefb_par *par, int space);
+
+	int HorizScaleFactor;
+
+	/* Panels size */
+	int SavagePanelWidth;
+	int SavagePanelHeight;
+
+	struct {
+		u16 red, green, blue, transp;
+	} palette[NR_PALETTE];
+
+	int depth;
+	int vwidth;
+};
+
+#define BCI_BD_BW_DISABLE            0x10000000
+#define BCI_BD_SET_BPP(bd, bpp)      ((bd) |= (((bpp) & 0xFF) << 16))
+#define BCI_BD_SET_STRIDE(bd, st)    ((bd) |= ((st) & 0xFFFF))
+
+
+/* IO functions */
+static inline u8 savage_in8(u32 addr, struct savagefb_par *par)
+{
+	return readb(par->mmio.vbase + addr);
+}
+
+static inline u16 savage_in16(u32 addr, struct savagefb_par *par)
+{
+	return readw(par->mmio.vbase + addr);
+}
+
+static inline u32 savage_in32(u32 addr, struct savagefb_par *par)
+{
+	return readl(par->mmio.vbase + addr);
+}
+
+static inline void savage_out8(u32 addr, u8 val, struct savagefb_par *par)
+{
+	writeb(val, par->mmio.vbase + addr);
+}
+
+static inline void savage_out16(u32 addr, u16 val, struct savagefb_par *par)
+{
+	writew(val, par->mmio.vbase + addr);
+}
+
+static inline void savage_out32(u32 addr, u32 val, struct savagefb_par *par)
+{
+	writel(val, par->mmio.vbase + addr);
+}
+
+static inline u8 vga_in8(int addr, struct savagefb_par *par)
+{
+	return savage_in8(0x8000 + addr, par);
+}
+
+static inline u16 vga_in16(int addr, struct savagefb_par *par)
+{
+	return savage_in16(0x8000 + addr, par);
+}
+
+static inline u8 vga_in32(int addr, struct savagefb_par *par)
+{
+	return savage_in32(0x8000 + addr, par);
+}
+
+static inline void vga_out8(int addr, u8 val, struct savagefb_par *par)
+{
+	savage_out8(0x8000 + addr, val, par);
+}
+
+static inline void vga_out16(int addr, u16 val, struct savagefb_par *par)
+{
+	savage_out16(0x8000 + addr, val, par);
+}
+
+static inline void vga_out32(int addr, u32 val, struct savagefb_par *par)
+{
+	savage_out32(0x8000 + addr, val, par);
+}
+
+static inline u8 VGArCR (u8 index, struct savagefb_par *par)
+{
+	vga_out8(0x3d4, index,  par);
+	return vga_in8(0x3d5, par);
+}
+
+static inline u8 VGArGR (u8 index, struct savagefb_par *par)
+{
+	vga_out8(0x3ce, index, par);
+	return vga_in8(0x3cf, par);
+}
+
+static inline u8 VGArSEQ (u8 index, struct savagefb_par *par)
+{
+	vga_out8(0x3c4, index, par);
+	return vga_in8(0x3c5, par);
+}
+
+static inline void VGAwCR(u8 index, u8 val, struct savagefb_par *par)
+{
+	vga_out8(0x3d4, index, par);
+	vga_out8(0x3d5, val, par);
+}
+
+static inline void VGAwGR(u8 index, u8 val, struct savagefb_par *par)
+{
+	vga_out8(0x3ce, index, par);
+	vga_out8(0x3cf, val, par);
+}
+
+static inline void VGAwSEQ(u8 index, u8 val, struct savagefb_par *par)
+{
+	vga_out8(0x3c4, index, par);
+	vga_out8 (0x3c5, val, par);
+}
+
+static inline void VGAenablePalette(struct savagefb_par *par)
+{
+	u8 tmp;
+
+	tmp = vga_in8(0x3da, par);
+	vga_out8(0x3c0, 0x00, par);
+	par->paletteEnabled = 1;
+}
+
+static inline void VGAdisablePalette(struct savagefb_par *par)
+{
+	u8 tmp;
+
+	tmp = vga_in8(0x3da, par);
+	vga_out8(0x3c0, 0x20, par);
+	par->paletteEnabled = 0;
+}
+
+static inline void VGAwATTR(u8 index, u8 value, struct savagefb_par *par)
+{
+	u8 tmp;
+
+	if (par->paletteEnabled)
+		index &= ~0x20;
+	else
+		index |= 0x20;
+
+	tmp = vga_in8(0x3da, par);
+	vga_out8(0x3c0, index, par);
+	vga_out8 (0x3c0, value, par);
+}
+
+static inline void VGAwMISC(u8 value, struct savagefb_par *par)
+{
+	vga_out8(0x3c2, value, par);
+}
+
+#ifndef CONFIG_FB_SAVAGE_ACCEL
+#define savagefb_set_clip(x)
+#endif
+
+static inline void VerticalRetraceWait(struct savagefb_par *par)
+{
+	vga_out8(0x3d4, 0x17, par);
+	if (vga_in8(0x3d5, par) & 0x80) {
+		while ((vga_in8(0x3da, par) & 0x08) == 0x08);
+		while ((vga_in8(0x3da, par) & 0x08) == 0x00);
+	}
+}
+
+extern int savagefb_probe_i2c_connector(struct fb_info *info,
+					u8 **out_edid);
+extern void savagefb_create_i2c_busses(struct fb_info *info);
+extern void savagefb_delete_i2c_busses(struct fb_info *info);
+extern int  savagefb_sync(struct fb_info *info);
+extern void savagefb_copyarea(struct fb_info *info,
+			      const struct fb_copyarea *region);
+extern void savagefb_fillrect(struct fb_info *info,
+			      const struct fb_fillrect *rect);
+extern void savagefb_imageblit(struct fb_info *info,
+			       const struct fb_image *image);
+
+
+#endif /* __SAVAGEFB_H__ */
-- 
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