From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 11 Apr 2024 10:27:49 +0200
Subject: Adding upstream version 6.6.15.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 drivers/video/fbdev/aty/radeonfb.h | 520 +++++++++++++++++++++++++++++++++++++
 1 file changed, 520 insertions(+)
 create mode 100644 drivers/video/fbdev/aty/radeonfb.h

(limited to 'drivers/video/fbdev/aty/radeonfb.h')

diff --git a/drivers/video/fbdev/aty/radeonfb.h b/drivers/video/fbdev/aty/radeonfb.h
new file mode 100644
index 0000000000..91d81b5762
--- /dev/null
+++ b/drivers/video/fbdev/aty/radeonfb.h
@@ -0,0 +1,520 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __RADEONFB_H__
+#define __RADEONFB_H__
+
+#ifdef CONFIG_FB_RADEON_DEBUG
+#define DEBUG		1
+#endif
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/pci.h>
+#include <linux/fb.h>
+
+
+#ifdef CONFIG_FB_RADEON_I2C
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#endif
+
+#include <asm/io.h>
+
+#ifdef CONFIG_SPARC
+#include <asm/prom.h>
+#endif
+
+#include <video/radeon.h>
+
+/***************************************************************
+ * Most of the definitions here are adapted right from XFree86 *
+ ***************************************************************/
+
+
+/*
+ * Chip families. Must fit in the low 16 bits of a long word
+ */
+enum radeon_family {
+	CHIP_FAMILY_UNKNOW,
+	CHIP_FAMILY_LEGACY,
+	CHIP_FAMILY_RADEON,
+	CHIP_FAMILY_RV100,
+	CHIP_FAMILY_RS100,    /* U1 (IGP320M) or A3 (IGP320)*/
+	CHIP_FAMILY_RV200,
+	CHIP_FAMILY_RS200,    /* U2 (IGP330M/340M/350M) or A4 (IGP330/340/345/350),
+				 RS250 (IGP 7000) */
+	CHIP_FAMILY_R200,
+	CHIP_FAMILY_RV250,
+	CHIP_FAMILY_RS300,    /* Radeon 9000 IGP */
+	CHIP_FAMILY_RV280,
+	CHIP_FAMILY_R300,
+	CHIP_FAMILY_R350,
+	CHIP_FAMILY_RV350,
+	CHIP_FAMILY_RV380,    /* RV370/RV380/M22/M24 */
+	CHIP_FAMILY_R420,     /* R420/R423/M18 */
+	CHIP_FAMILY_RC410,
+	CHIP_FAMILY_RS400,
+	CHIP_FAMILY_RS480,
+	CHIP_FAMILY_LAST,
+};
+
+#define IS_RV100_VARIANT(rinfo) (((rinfo)->family == CHIP_FAMILY_RV100)  || \
+				 ((rinfo)->family == CHIP_FAMILY_RV200)  || \
+				 ((rinfo)->family == CHIP_FAMILY_RS100)  || \
+				 ((rinfo)->family == CHIP_FAMILY_RS200)  || \
+				 ((rinfo)->family == CHIP_FAMILY_RV250)  || \
+				 ((rinfo)->family == CHIP_FAMILY_RV280)  || \
+				 ((rinfo)->family == CHIP_FAMILY_RS300))
+
+
+#define IS_R300_VARIANT(rinfo) (((rinfo)->family == CHIP_FAMILY_R300)  || \
+				((rinfo)->family == CHIP_FAMILY_RV350) || \
+				((rinfo)->family == CHIP_FAMILY_R350)  || \
+				((rinfo)->family == CHIP_FAMILY_RV380) || \
+				((rinfo)->family == CHIP_FAMILY_R420)  || \
+                               ((rinfo)->family == CHIP_FAMILY_RC410) || \
+                               ((rinfo)->family == CHIP_FAMILY_RS480))
+
+/*
+ * Chip flags
+ */
+enum radeon_chip_flags {
+	CHIP_FAMILY_MASK	= 0x0000ffffUL,
+	CHIP_FLAGS_MASK		= 0xffff0000UL,
+	CHIP_IS_MOBILITY	= 0x00010000UL,
+	CHIP_IS_IGP		= 0x00020000UL,
+	CHIP_HAS_CRTC2		= 0x00040000UL,	
+};
+
+/*
+ * Errata workarounds
+ */
+enum radeon_errata {
+	CHIP_ERRATA_R300_CG		= 0x00000001,
+	CHIP_ERRATA_PLL_DUMMYREADS	= 0x00000002,
+	CHIP_ERRATA_PLL_DELAY		= 0x00000004,
+};
+
+
+/*
+ * Monitor types
+ */
+enum radeon_montype {
+	MT_NONE = 0,
+	MT_CRT,		/* CRT */
+	MT_LCD,		/* LCD */
+	MT_DFP,		/* DVI */
+	MT_CTV,		/* composite TV */
+	MT_STV		/* S-Video out */
+};
+
+/*
+ * DDC i2c ports
+ */
+enum ddc_type {
+	ddc_none,
+	ddc_monid,
+	ddc_dvi,
+	ddc_vga,
+	ddc_crt2,
+};
+
+/*
+ * Connector types
+ */
+enum conn_type {
+	conn_none,
+	conn_proprietary,
+	conn_crt,
+	conn_DVI_I,
+	conn_DVI_D,
+};
+
+
+/*
+ * PLL infos
+ */
+struct pll_info {
+	int ppll_max;
+	int ppll_min;
+	int sclk, mclk;
+	int ref_div;
+	int ref_clk;
+};
+
+
+/*
+ * This structure contains the various registers manipulated by this
+ * driver for setting or restoring a mode. It's mostly copied from
+ * XFree's RADEONSaveRec structure. A few chip settings might still be
+ * tweaked without beeing reflected or saved in these registers though
+ */
+struct radeon_regs {
+	/* Common registers */
+	u32		ovr_clr;
+	u32		ovr_wid_left_right;
+	u32		ovr_wid_top_bottom;
+	u32		ov0_scale_cntl;
+	u32		mpp_tb_config;
+	u32		mpp_gp_config;
+	u32		subpic_cntl;
+	u32		viph_control;
+	u32		i2c_cntl_1;
+	u32		gen_int_cntl;
+	u32		cap0_trig_cntl;
+	u32		cap1_trig_cntl;
+	u32		bus_cntl;
+	u32		surface_cntl;
+	u32		bios_5_scratch;
+
+	/* Other registers to save for VT switches or driver load/unload */
+	u32		dp_datatype;
+	u32		rbbm_soft_reset;
+	u32		clock_cntl_index;
+	u32		amcgpio_en_reg;
+	u32		amcgpio_mask;
+
+	/* Surface/tiling registers */
+	u32		surf_lower_bound[8];
+	u32		surf_upper_bound[8];
+	u32		surf_info[8];
+
+	/* CRTC registers */
+	u32		crtc_gen_cntl;
+	u32		crtc_ext_cntl;
+	u32		dac_cntl;
+	u32		crtc_h_total_disp;
+	u32		crtc_h_sync_strt_wid;
+	u32		crtc_v_total_disp;
+	u32		crtc_v_sync_strt_wid;
+	u32		crtc_offset;
+	u32		crtc_offset_cntl;
+	u32		crtc_pitch;
+	u32		disp_merge_cntl;
+	u32		grph_buffer_cntl;
+	u32		crtc_more_cntl;
+
+	/* CRTC2 registers */
+	u32		crtc2_gen_cntl;
+	u32		dac2_cntl;
+	u32		disp_output_cntl;
+	u32		disp_hw_debug;
+	u32		disp2_merge_cntl;
+	u32		grph2_buffer_cntl;
+	u32		crtc2_h_total_disp;
+	u32		crtc2_h_sync_strt_wid;
+	u32		crtc2_v_total_disp;
+	u32		crtc2_v_sync_strt_wid;
+	u32		crtc2_offset;
+	u32		crtc2_offset_cntl;
+	u32		crtc2_pitch;
+
+	/* Flat panel regs */
+	u32 		fp_crtc_h_total_disp;
+	u32		fp_crtc_v_total_disp;
+	u32		fp_gen_cntl;
+	u32		fp2_gen_cntl;
+	u32		fp_h_sync_strt_wid;
+	u32		fp2_h_sync_strt_wid;
+	u32		fp_horz_stretch;
+	u32		fp_panel_cntl;
+	u32		fp_v_sync_strt_wid;
+	u32		fp2_v_sync_strt_wid;
+	u32		fp_vert_stretch;
+	u32		lvds_gen_cntl;
+	u32		lvds_pll_cntl;
+	u32		tmds_crc;
+	u32		tmds_transmitter_cntl;
+
+	/* Computed values for PLL */
+	u32		dot_clock_freq;
+	int		feedback_div;
+	int		post_div;	
+
+	/* PLL registers */
+	u32		ppll_div_3;
+	u32		ppll_ref_div;
+	u32		vclk_ecp_cntl;
+	u32		clk_cntl_index;
+
+	/* Computed values for PLL2 */
+	u32		dot_clock_freq_2;
+	int		feedback_div_2;
+	int		post_div_2;
+
+	/* PLL2 registers */
+	u32		p2pll_ref_div;
+	u32		p2pll_div_0;
+	u32		htotal_cntl2;
+
+       	/* Palette */
+	int		palette_valid;
+};
+
+struct panel_info {
+	int xres, yres;
+	int valid;
+	int clock;
+	int hOver_plus, hSync_width, hblank;
+	int vOver_plus, vSync_width, vblank;
+	int hAct_high, vAct_high, interlaced;
+	int pwr_delay;
+	int use_bios_dividers;
+	int ref_divider;
+	int post_divider;
+	int fbk_divider;
+};
+
+struct radeonfb_info;
+
+#ifdef CONFIG_FB_RADEON_I2C
+struct radeon_i2c_chan {
+	struct radeonfb_info		*rinfo;
+	u32		 		ddc_reg;
+	struct i2c_adapter		adapter;
+	struct i2c_algo_bit_data	algo;
+};
+#endif
+
+enum radeon_pm_mode {
+	radeon_pm_none	= 0,		/* Nothing supported */
+	radeon_pm_d2	= 0x00000001,	/* Can do D2 state */
+	radeon_pm_off	= 0x00000002,	/* Can resume from D3 cold */
+};
+
+typedef void (*reinit_function_ptr)(struct radeonfb_info *rinfo);
+
+struct radeonfb_info {
+	struct fb_info		*info;
+
+	struct radeon_regs 	state;
+	struct radeon_regs	init_state;
+
+	char			name[50];
+
+	unsigned long		mmio_base_phys;
+	unsigned long		fb_base_phys;
+
+	void __iomem		*mmio_base;
+	void __iomem		*fb_base;
+
+	unsigned long		fb_local_base;
+
+	struct pci_dev		*pdev;
+#if defined(CONFIG_PPC) || defined(CONFIG_SPARC)
+	struct device_node	*of_node;
+#endif
+
+	void __iomem		*bios_seg;
+	int			fp_bios_start;
+
+	u32			pseudo_palette[16];
+	struct { u8 red, green, blue, pad; }
+				palette[256];
+
+	int			chipset;
+	u8			family;
+	u8			rev;
+	unsigned int		errata;
+	unsigned long		video_ram;
+	unsigned long		mapped_vram;
+	int			vram_width;
+	int			vram_ddr;
+
+	int			pitch, bpp, depth;
+
+	int			has_CRTC2;
+	int			is_mobility;
+	int			is_IGP;
+	int			reversed_DAC;
+	int			reversed_TMDS;
+	struct panel_info	panel_info;
+	int			mon1_type;
+	u8			*mon1_EDID;
+	struct fb_videomode	*mon1_modedb;
+	int			mon1_dbsize;
+	int			mon2_type;
+	u8		        *mon2_EDID;
+
+	u32			dp_gui_master_cntl;
+
+	struct pll_info		pll;
+
+	int			wc_cookie;
+
+	u32			save_regs[100];
+	int			asleep;
+	int			lock_blank;
+	int			dynclk;
+	int			no_schedule;
+	enum radeon_pm_mode	pm_mode;
+	reinit_function_ptr     reinit_func;
+
+	/* Lock on register access */
+	spinlock_t		reg_lock;
+
+	/* Timer used for delayed LVDS operations */
+	struct timer_list	lvds_timer;
+	u32			pending_lvds_gen_cntl;
+
+#ifdef CONFIG_FB_RADEON_I2C
+	struct radeon_i2c_chan 	i2c[4];
+#endif
+};
+
+
+#define PRIMARY_MONITOR(rinfo)	(rinfo->mon1_type)
+
+
+/*
+ * IO macros
+ */
+
+void _radeon_msleep(struct radeonfb_info *rinfo, unsigned long ms);
+
+#define INREG8(addr)		readb((rinfo->mmio_base)+addr)
+#define OUTREG8(addr,val)	writeb(val, (rinfo->mmio_base)+addr)
+#define INREG16(addr)		readw((rinfo->mmio_base)+addr)
+#define OUTREG16(addr,val)	writew(val, (rinfo->mmio_base)+addr)
+#define INREG(addr)		readl((rinfo->mmio_base)+addr)
+#define OUTREG(addr,val)	writel(val, (rinfo->mmio_base)+addr)
+
+void _OUTREGP(struct radeonfb_info *rinfo, u32 addr, u32 val, u32 mask);
+
+#define OUTREGP(addr,val,mask)	_OUTREGP(rinfo, addr, val,mask)
+
+/*
+ * Note about PLL register accesses:
+ *
+ * I have removed the spinlock on them on purpose. The driver now
+ * expects that it will only manipulate the PLL registers in normal
+ * task environment, where radeon_msleep() will be called, protected
+ * by a semaphore (currently the console semaphore) so that no conflict
+ * will happen on the PLL register index.
+ *
+ * With the latest changes to the VT layer, this is guaranteed for all
+ * calls except the actual drawing/blits which aren't supposed to use
+ * the PLL registers anyway
+ *
+ * This is very important for the workarounds to work properly. The only
+ * possible exception to this rule is the call to unblank(), which may
+ * be done at irq time if an oops is in progress.
+ */
+void radeon_pll_errata_after_index_slow(struct radeonfb_info *rinfo);
+static inline void radeon_pll_errata_after_index(struct radeonfb_info *rinfo)
+{
+	if (rinfo->errata & CHIP_ERRATA_PLL_DUMMYREADS)
+		radeon_pll_errata_after_index_slow(rinfo);
+}
+
+void radeon_pll_errata_after_data_slow(struct radeonfb_info *rinfo);
+static inline void radeon_pll_errata_after_data(struct radeonfb_info *rinfo)
+{
+	if (rinfo->errata & (CHIP_ERRATA_PLL_DELAY|CHIP_ERRATA_R300_CG))
+		radeon_pll_errata_after_data_slow(rinfo);
+}
+
+u32 __INPLL(struct radeonfb_info *rinfo, u32 addr);
+void __OUTPLL(struct radeonfb_info *rinfo, unsigned int index, u32 val);
+void __OUTPLLP(struct radeonfb_info *rinfo, unsigned int index,
+			     u32 val, u32 mask);
+
+#define INPLL(addr)			__INPLL(rinfo, addr)
+#define OUTPLL(index, val)		__OUTPLL(rinfo, index, val)
+#define OUTPLLP(index, val, mask)	__OUTPLLP(rinfo, index, val, mask)
+
+
+#define BIOS_IN8(v)  	(readb(rinfo->bios_seg + (v)))
+#define BIOS_IN16(v) 	(readb(rinfo->bios_seg + (v)) | \
+			  (readb(rinfo->bios_seg + (v) + 1) << 8))
+#define BIOS_IN32(v) 	(readb(rinfo->bios_seg + (v)) | \
+			  (readb(rinfo->bios_seg + (v) + 1) << 8) | \
+			  (readb(rinfo->bios_seg + (v) + 2) << 16) | \
+			  (readb(rinfo->bios_seg + (v) + 3) << 24))
+
+/*
+ * Inline utilities
+ */
+static inline int round_div(int num, int den)
+{
+        return (num + (den / 2)) / den;
+}
+
+static inline int var_to_depth(const struct fb_var_screeninfo *var)
+{
+	if (var->bits_per_pixel != 16)
+		return var->bits_per_pixel;
+	return (var->green.length == 5) ? 15 : 16;
+}
+
+static inline u32 radeon_get_dstbpp(u16 depth)
+{
+	switch (depth) {
+       	case 8:
+       		return DST_8BPP;
+       	case 15:
+       		return DST_15BPP;
+       	case 16:
+       		return DST_16BPP;
+       	case 32:
+       		return DST_32BPP;
+       	default:
+       		return 0;
+	}
+}
+
+/*
+ * 2D Engine helper routines
+ */
+
+void _radeon_fifo_wait(struct radeonfb_info *rinfo, int entries);
+void radeon_engine_flush(struct radeonfb_info *rinfo);
+void _radeon_engine_idle(struct radeonfb_info *rinfo);
+
+#define radeon_engine_idle()		_radeon_engine_idle(rinfo)
+#define radeon_fifo_wait(entries)	_radeon_fifo_wait(rinfo,entries)
+#define radeon_msleep(ms)		_radeon_msleep(rinfo,ms)
+
+
+/* I2C Functions */
+extern void radeon_create_i2c_busses(struct radeonfb_info *rinfo);
+extern void radeon_delete_i2c_busses(struct radeonfb_info *rinfo);
+extern int radeon_probe_i2c_connector(struct radeonfb_info *rinfo, int conn, u8 **out_edid);
+
+/* PM Functions */
+extern const struct dev_pm_ops radeonfb_pci_pm_ops;
+extern void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlist, int force_sleep);
+extern void radeonfb_pm_exit(struct radeonfb_info *rinfo);
+
+/* Monitor probe functions */
+extern void radeon_probe_screens(struct radeonfb_info *rinfo,
+				 const char *monitor_layout, int ignore_edid);
+extern void radeon_check_modes(struct radeonfb_info *rinfo, const char *mode_option);
+extern int radeon_match_mode(struct radeonfb_info *rinfo,
+			     struct fb_var_screeninfo *dest,
+			     const struct fb_var_screeninfo *src);
+
+/* Accel functions */
+extern void radeonfb_fillrect(struct fb_info *info, const struct fb_fillrect *region);
+extern void radeonfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
+extern void radeonfb_imageblit(struct fb_info *p, const struct fb_image *image);
+extern int radeonfb_sync(struct fb_info *info);
+extern void radeonfb_engine_init (struct radeonfb_info *rinfo);
+extern void radeonfb_engine_reset(struct radeonfb_info *rinfo);
+
+/* Other functions */
+extern int radeon_screen_blank(struct radeonfb_info *rinfo, int blank, int mode_switch);
+extern void radeon_write_mode (struct radeonfb_info *rinfo, struct radeon_regs *mode,
+			       int reg_only);
+
+/* Backlight functions */
+#ifdef CONFIG_FB_RADEON_BACKLIGHT
+extern void radeonfb_bl_init(struct radeonfb_info *rinfo);
+extern void radeonfb_bl_exit(struct radeonfb_info *rinfo);
+#else
+static inline void radeonfb_bl_init(struct radeonfb_info *rinfo) {}
+static inline void radeonfb_bl_exit(struct radeonfb_info *rinfo) {}
+#endif
+
+#endif /* __RADEONFB_H__ */
-- 
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