Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 356 insertions, 0 deletions

diff --git a/include/video/sstfb.h b/include/video/sstfb.h
new file mode 100644
index 000000000..28384f354
--- /dev/null
+++ b/include/video/sstfb.h
@@ -0,0 +1,356 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * linux/drivers/video/sstfb.h -- voodoo graphics frame buffer
+ *
+ *     Copyright (c) 2000,2001 Ghozlane Toumi <gtoumi@messel.emse.fr>
+ *
+ *     Created 28 Aug 2001 by Ghozlane Toumi
+ */
+
+
+#ifndef _SSTFB_H_
+#define _SSTFB_H_
+
+/*
+ *
+ *  Debug Stuff
+ *
+ */
+
+#ifdef SST_DEBUG
+#  define dprintk(X...)		printk("sstfb: " X)
+#  define SST_DEBUG_REG  1
+#  define SST_DEBUG_FUNC 1
+#  define SST_DEBUG_VAR  1
+#else
+#  define dprintk(X...)
+#  define SST_DEBUG_REG  0
+#  define SST_DEBUG_FUNC 0
+#  define SST_DEBUG_VAR  0
+#endif
+
+#if (SST_DEBUG_REG > 0)
+#  define r_dprintk(X...)	dprintk(X)
+#else
+#  define r_dprintk(X...)
+#endif
+#if (SST_DEBUG_REG > 1)
+#  define r_ddprintk(X...)	dprintk(" " X)
+#else
+#  define r_ddprintk(X...)
+#endif
+
+#if (SST_DEBUG_FUNC > 0)
+#  define f_dprintk(X...)	dprintk(X)
+#else
+#  define f_dprintk(X...)
+#endif
+#if (SST_DEBUG_FUNC > 1)
+#  define f_ddprintk(X...)	dprintk(" " X)
+#else
+#  define f_ddprintk(X...)
+#endif
+#if (SST_DEBUG_FUNC > 2)
+#  define f_dddprintk(X...)	dprintk(" " X)
+#else
+#  define f_dddprintk(X...)
+#endif
+
+#if (SST_DEBUG_VAR > 0)
+#  define v_dprintk(X...)	dprintk(X)
+#  define print_var(V, X...)	\
+   {				\
+     dprintk(X);		\
+     printk(" :\n");		\
+     sst_dbg_print_var(V);	\
+   }
+#else
+#  define v_dprintk(X...)
+#  define print_var(X,Y...)
+#endif
+
+#define POW2(x)		(1ul<<(x))
+
+/*
+ *
+ *  Const
+ *
+ */
+
+/* pci stuff */
+#define PCI_INIT_ENABLE		0x40
+#  define PCI_EN_INIT_WR	  BIT(0)
+#  define PCI_EN_FIFO_WR	  BIT(1)
+#  define PCI_REMAP_DAC		  BIT(2)
+#define PCI_VCLK_ENABLE		0xc0	/* enable video */
+#define PCI_VCLK_DISABLE	0xe0
+
+/* register offsets from memBaseAddr */
+#define STATUS			0x0000
+#  define STATUS_FBI_BUSY	  BIT(7)
+#define FBZMODE			0x0110
+#  define EN_CLIPPING		  BIT(0)	/* enable clipping */
+#  define EN_RGB_WRITE		  BIT(9)	/* enable writes to rgb area */
+#  define EN_ALPHA_WRITE	  BIT(10)
+#  define ENGINE_INVERT_Y	  BIT(17)	/* invert Y origin (pipe) */
+#define LFBMODE			0x0114
+#  define LFB_565		  0		/* bits 3:0 .16 bits RGB */
+#  define LFB_888		  4		/* 24 bits RGB */
+#  define LFB_8888		  5		/* 32 bits ARGB */
+#  define WR_BUFF_FRONT		  0		/* write buf select (front) */
+#  define WR_BUFF_BACK		  (1 << 4)	/* back */
+#  define RD_BUFF_FRONT		  0		/* read buff select (front) */
+#  define RD_BUFF_BACK		  (1 << 6)	/* back */
+#  define EN_PXL_PIPELINE	  BIT(8)	/* pixel pipeline (clip..)*/
+#  define LFB_WORD_SWIZZLE_WR	  BIT(11)	/* enable write-wordswap (big-endian) */
+#  define LFB_BYTE_SWIZZLE_WR	  BIT(12)	/* enable write-byteswap (big-endian) */
+#  define LFB_INVERT_Y		  BIT(13)	/* invert Y origin (LFB) */
+#  define LFB_WORD_SWIZZLE_RD	  BIT(15)	/* enable read-wordswap (big-endian) */
+#  define LFB_BYTE_SWIZZLE_RD	  BIT(16)	/* enable read-byteswap (big-endian) */
+#define CLIP_LEFT_RIGHT		0x0118
+#define CLIP_LOWY_HIGHY		0x011c
+#define NOPCMD			0x0120
+#define FASTFILLCMD		0x0124
+#define SWAPBUFFCMD		0x0128
+#define FBIINIT4		0x0200		/* misc controls */
+#  define FAST_PCI_READS	  0		/* 1 waitstate */
+#  define SLOW_PCI_READS	  BIT(0)	/* 2 ws */
+#  define LFB_READ_AHEAD	  BIT(1)
+#define BACKPORCH		0x0208
+#define VIDEODIMENSIONS		0x020c
+#define FBIINIT0		0x0210		/* misc+fifo  controls */
+#  define DIS_VGA_PASSTHROUGH	  BIT(0)
+#  define FBI_RESET		  BIT(1)
+#  define FIFO_RESET		  BIT(2)
+#define FBIINIT1		0x0214		/* PCI + video controls */
+#  define VIDEO_MASK		  0x8080010f	/* masks video related bits V1+V2*/
+#  define FAST_PCI_WRITES	  0		/* 0 ws */
+#  define SLOW_PCI_WRITES	  BIT(1)	/* 1 ws */
+#  define EN_LFB_READ		  BIT(3)
+#  define TILES_IN_X_SHIFT	  4
+#  define VIDEO_RESET		  BIT(8)
+#  define EN_BLANKING		  BIT(12)
+#  define EN_DATA_OE		  BIT(13)
+#  define EN_BLANK_OE		  BIT(14)
+#  define EN_HVSYNC_OE		  BIT(15)
+#  define EN_DCLK_OE		  BIT(16)
+#  define SEL_INPUT_VCLK_2X	  0		/* bit 17 */
+#  define SEL_INPUT_VCLK_SLAVE	  BIT(17)
+#  define SEL_SOURCE_VCLK_SLAVE	  0		/* bits 21:20 */
+#  define SEL_SOURCE_VCLK_2X_DIV2 (0x01 << 20)
+#  define SEL_SOURCE_VCLK_2X_SEL  (0x02 << 20)
+#  define EN_24BPP		  BIT(22)
+#  define TILES_IN_X_MSB_SHIFT	  24		/* v2 */
+#  define VCLK_2X_SEL_DEL_SHIFT	  27		/* vclk out delay 0,4,6,8ns */
+#  define VCLK_DEL_SHIFT	  29		/* vclk in delay */
+#define FBIINIT2		0x0218		/* Dram controls */
+#  define EN_FAST_RAS_READ	  BIT(5)
+#  define EN_DRAM_OE		  BIT(6)
+#  define EN_FAST_RD_AHEAD_WR	  BIT(7)
+#  define VIDEO_OFFSET_SHIFT	  11		/* unit: #rows tile 64x16/2 */
+#  define SWAP_DACVSYNC		  0
+#  define SWAP_DACDATA0		  (1 << 9)
+#  define SWAP_FIFO_STALL	  (2 << 9)
+#  define EN_RD_AHEAD_FIFO	  BIT(21)
+#  define EN_DRAM_REFRESH	  BIT(22)
+#  define DRAM_REFRESH_16	  (0x30 << 23)	/* dram 16 ms */
+#define DAC_READ		FBIINIT2	/* in remap mode */
+#define FBIINIT3		0x021c		/* fbi controls */
+#  define DISABLE_TEXTURE	  BIT(6)
+#  define Y_SWAP_ORIGIN_SHIFT	  22		/* Y swap subtraction value */
+#define HSYNC			0x0220
+#define VSYNC			0x0224
+#define DAC_DATA		0x022c
+#  define DAC_READ_CMD		  BIT(11)	/* set read dacreg mode */
+#define FBIINIT5		0x0244		/* v2 specific */
+#  define FBIINIT5_MASK		  0xfa40ffff    /* mask video bits*/
+#  define HDOUBLESCAN		  BIT(20)
+#  define VDOUBLESCAN		  BIT(21)
+#  define HSYNC_HIGH 		  BIT(23)
+#  define VSYNC_HIGH 		  BIT(24)
+#  define INTERLACE		  BIT(26)
+#define FBIINIT6		0x0248		/* v2 specific */
+#  define TILES_IN_X_LSB_SHIFT	  30		/* v2 */
+#define FBIINIT7		0x024c		/* v2 specific */
+
+#define BLTSRCBASEADDR		0x02c0	/* BitBLT Source base address */
+#define BLTDSTBASEADDR		0x02c4	/* BitBLT Destination base address */
+#define BLTXYSTRIDES		0x02c8	/* BitBLT Source and Destination strides */
+#define BLTSRCCHROMARANGE	0x02cc	/* BitBLT Source Chroma key range */
+#define BLTDSTCHROMARANGE	0x02d0	/* BitBLT Destination Chroma key range */
+#define BLTCLIPX		0x02d4	/* BitBLT Min/Max X clip values */
+#define BLTCLIPY		0x02d8	/* BitBLT Min/Max Y clip values */
+#define BLTSRCXY		0x02e0	/* BitBLT Source starting XY coordinates */
+#define BLTDSTXY		0x02e4	/* BitBLT Destination starting XY coordinates */
+#define BLTSIZE			0x02e8	/* BitBLT width and height */
+#define BLTROP			0x02ec	/* BitBLT Raster operations */
+#  define BLTROP_COPY		  0x0cccc
+#  define BLTROP_INVERT		  0x05555
+#  define BLTROP_XOR		  0x06666
+#define BLTCOLOR		0x02f0	/* BitBLT and foreground background colors */
+#define BLTCOMMAND		0x02f8	/* BitBLT command mode (v2 specific) */
+# define BLT_SCR2SCR_BITBLT	  0	  /* Screen-to-Screen BitBLT */
+# define BLT_CPU2SCR_BITBLT	  1	  /* CPU-to-screen BitBLT */
+# define BLT_RECFILL_BITBLT	  2	  /* BitBLT Rectangle Fill */
+# define BLT_16BPP_FMT		  2	  /* 16 BPP (5-6-5 RGB) */
+#define BLTDATA			0x02fc	/* BitBLT data for CPU-to-Screen BitBLTs */
+#  define LAUNCH_BITBLT		  BIT(31) /* Launch BitBLT in BltCommand, bltDstXY or bltSize */
+
+/* Dac Registers */
+#define DACREG_WMA		0x0	/* pixel write mode address */
+#define DACREG_LUT		0x01	/* color value */
+#define DACREG_RMR		0x02	/* pixel mask */
+#define DACREG_RMA		0x03	/* pixel read mode address */
+/*Dac registers in indexed mode (TI, ATT dacs) */
+#define DACREG_ADDR_I		DACREG_WMA
+#define DACREG_DATA_I		DACREG_RMR
+#define DACREG_RMR_I		0x00
+#define DACREG_CR0_I		0x01
+#  define DACREG_CR0_EN_INDEXED	  BIT(0)	/* enable indexec mode */
+#  define DACREG_CR0_8BIT	  BIT(1)	/* set dac to 8 bits/read */
+#  define DACREG_CR0_PWDOWN	  BIT(3)	/* powerdown dac */
+#  define DACREG_CR0_16BPP	  0x30		/* mode 3 */
+#  define DACREG_CR0_24BPP	  0x50		/* mode 5 */
+#define	DACREG_CR1_I		0x05
+#define DACREG_CC_I		0x06
+#  define DACREG_CC_CLKA	  BIT(7)	/* clk A controlled by regs */
+#  define DACREG_CC_CLKA_C	  (2<<4)	/* clk A uses reg C */
+#  define DACREG_CC_CLKB	  BIT(3)	/* clk B controlled by regs */
+#  define DACREG_CC_CLKB_D	  3		/* clkB uses reg D */
+#define DACREG_AC0_I		0x48		/* clock A reg C */
+#define DACREG_AC1_I		0x49
+#define DACREG_BD0_I		0x6c		/* clock B reg D */
+#define DACREG_BD1_I		0x6d
+
+/* identification constants */
+#define DACREG_MIR_TI		0x97
+#define DACREG_DIR_TI		0x09
+#define DACREG_MIR_ATT		0x84
+#define DACREG_DIR_ATT		0x09
+/* ics dac specific registers */
+#define DACREG_ICS_PLLWMA	0x04	/* PLL write mode address */
+#define DACREG_ICS_PLLDATA	0x05	/* PLL data /parameter */
+#define DACREG_ICS_CMD		0x06	/* command */
+#  define DACREG_ICS_CMD_16BPP	  0x50	/* ics color mode 6 (16bpp bypass)*/
+#  define DACREG_ICS_CMD_24BPP	  0x70	/* ics color mode 7 (24bpp bypass)*/
+#  define DACREG_ICS_CMD_PWDOWN BIT(0)	/* powerdown dac */
+#define DACREG_ICS_PLLRMA	0x07	/* PLL read mode address */
+/*
+ * pll parameter register:
+ * indexed : write addr to PLLWMA, write data in PLLDATA.
+ * for reads use PLLRMA .
+ * 8 freq registers (0-7) for video clock (CLK0)
+ * 2 freq registers (a-b) for graphic clock (CLK1)
+ */
+#define DACREG_ICS_PLL_CLK0_1_INI 0x55	/* initial pll M value for freq f1  */
+#define DACREG_ICS_PLL_CLK0_7_INI 0x71	/* f7 */
+#define DACREG_ICS_PLL_CLK1_B_INI 0x79	/* fb */
+#define DACREG_ICS_PLL_CTRL	0x0e
+#  define DACREG_ICS_CLK0	  BIT(5)
+#  define DACREG_ICS_CLK0_0	  0
+#  define DACREG_ICS_CLK1_A	  0	/* bit4 */
+
+/* sst default init registers */
+#define FBIINIT0_DEFAULT DIS_VGA_PASSTHROUGH
+
+#define FBIINIT1_DEFAULT 	\
+	(			\
+	  FAST_PCI_WRITES	\
+/*	  SLOW_PCI_WRITES*/	\
+	| VIDEO_RESET		\
+	| 10 << TILES_IN_X_SHIFT\
+	| SEL_SOURCE_VCLK_2X_SEL\
+	| EN_LFB_READ		\
+	)
+
+#define FBIINIT2_DEFAULT	\
+	(			\
+	 SWAP_DACVSYNC		\
+	| EN_DRAM_OE		\
+	| DRAM_REFRESH_16	\
+	| EN_DRAM_REFRESH	\
+	| EN_FAST_RAS_READ	\
+	| EN_RD_AHEAD_FIFO	\
+	| EN_FAST_RD_AHEAD_WR	\
+	)
+
+#define FBIINIT3_DEFAULT 	\
+	( DISABLE_TEXTURE )
+
+#define FBIINIT4_DEFAULT	\
+	(			\
+	  FAST_PCI_READS	\
+/*	  SLOW_PCI_READS*/	\
+	| LFB_READ_AHEAD	\
+	)
+/* Careful with this one : writing back the data just read will trash the DAC
+   reading some fields give logic value on pins, but setting this field will
+   set the source signal driving the pin. conclusion : just use the default
+   as a base before writing back .
+*/
+#define FBIINIT6_DEFAULT	(0x0)
+
+/*
+ *
+ * Misc Const
+ *
+ */
+
+/* ioctl to enable/disable VGA passthrough */
+#define SSTFB_SET_VGAPASS	_IOW('F', 0xdd, __u32)
+#define SSTFB_GET_VGAPASS	_IOR('F', 0xdd, __u32)
+
+
+/* used to know witch clock to set */
+enum {
+	VID_CLOCK=0,
+	GFX_CLOCK=1,
+};
+
+/* freq max */
+#define DAC_FREF	14318	/* DAC reference freq (Khz) */
+#define VCO_MAX		260000
+
+/*
+ *  driver structs
+ */
+
+struct pll_timing {
+	unsigned int m;
+	unsigned int n;
+	unsigned int p;
+};
+
+struct dac_switch {
+	const char *name;
+	int (*detect) (struct fb_info *info);
+	int (*set_pll) (struct fb_info *info, const struct pll_timing *t, const int clock);
+	void (*set_vidmod) (struct fb_info *info, const int bpp);
+};
+
+struct sst_spec {
+	char * name;
+	int default_gfx_clock;	/* 50000 for voodoo1, 75000 for voodoo2 */
+	int max_gfxclk; 	/* ! in Mhz ie 60 for voodoo 1 */
+};
+
+struct sstfb_par {
+	u32 palette[16];
+	unsigned int yDim;
+	unsigned int hSyncOn;	/* hsync_len */
+	unsigned int hSyncOff;	/* left_margin + xres + right_margin */
+	unsigned int hBackPorch;/* left_margin */
+	unsigned int vSyncOn;
+	unsigned int vSyncOff;
+	unsigned int vBackPorch;
+	struct pll_timing pll;
+	unsigned int tiles_in_X;/* num of tiles in X res */
+	u8 __iomem *mmio_vbase;
+	struct dac_switch 	dac_sw;	/* dac specific functions */
+	struct pci_dev		*dev;
+	int	type;
+	u8	revision;
+	u8	vgapass;	/* VGA pass through: 1=enabled, 0=disabled */
+};
+
+#endif /* _SSTFB_H_ */