diff options
Diffstat (limited to 'drivers/video/fbdev/aty/radeonfb.h')
| -rw-r--r-- | drivers/video/fbdev/aty/radeonfb.h | 520 |
1 files changed, 520 insertions, 0 deletions
diff --git a/drivers/video/fbdev/aty/radeonfb.h b/drivers/video/fbdev/aty/radeonfb.h new file mode 100644 index 000000000..93f403cbb --- /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> + +#if defined(CONFIG_PPC) || 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) || 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__ */ |