radeonfb.h

Linux环境下视频显示卡设备的驱动程序源代码

#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>

#if defined(CONFIG_PPC_OF) || defined(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_OF) || 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;