| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * ATI Frame Buffer Device Driver Core Definitions |
| */ |
| |
| #include <linux/spinlock.h> |
| #include <linux/wait.h> |
| /* |
| * Elements of the hardware specific atyfb_par structure |
| */ |
| |
| struct crtc { |
| u32 vxres; |
| u32 vyres; |
| u32 xoffset; |
| u32 yoffset; |
| u32 bpp; |
| u32 h_tot_disp; |
| u32 h_sync_strt_wid; |
| u32 v_tot_disp; |
| u32 v_sync_strt_wid; |
| u32 vline_crnt_vline; |
| u32 off_pitch; |
| u32 gen_cntl; |
| u32 dp_pix_width; /* acceleration */ |
| u32 dp_chain_mask; /* acceleration */ |
| #ifdef CONFIG_FB_ATY_GENERIC_LCD |
| u32 horz_stretching; |
| u32 vert_stretching; |
| u32 ext_vert_stretch; |
| u32 shadow_h_tot_disp; |
| u32 shadow_h_sync_strt_wid; |
| u32 shadow_v_tot_disp; |
| u32 shadow_v_sync_strt_wid; |
| u32 lcd_gen_cntl; |
| u32 lcd_config_panel; |
| u32 lcd_index; |
| #endif |
| }; |
| |
| struct aty_interrupt { |
| wait_queue_head_t wait; |
| unsigned int count; |
| int pan_display; |
| }; |
| |
| struct pll_info { |
| int pll_max; |
| int pll_min; |
| int sclk, mclk, mclk_pm, xclk; |
| int ref_div; |
| int ref_clk; |
| int ecp_max; |
| }; |
| |
| typedef struct { |
| u16 unknown1; |
| u16 PCLK_min_freq; |
| u16 PCLK_max_freq; |
| u16 unknown2; |
| u16 ref_freq; |
| u16 ref_divider; |
| u16 unknown3; |
| u16 MCLK_pwd; |
| u16 MCLK_max_freq; |
| u16 XCLK_max_freq; |
| u16 SCLK_freq; |
| } __attribute__ ((packed)) PLL_BLOCK_MACH64; |
| |
| struct pll_514 { |
| u8 m; |
| u8 n; |
| }; |
| |
| struct pll_18818 { |
| u32 program_bits; |
| u32 locationAddr; |
| u32 period_in_ps; |
| u32 post_divider; |
| }; |
| |
| struct pll_ct { |
| u8 pll_ref_div; |
| u8 pll_gen_cntl; |
| u8 mclk_fb_div; |
| u8 mclk_fb_mult; /* 2 ro 4 */ |
| u8 sclk_fb_div; |
| u8 pll_vclk_cntl; |
| u8 vclk_post_div; |
| u8 vclk_fb_div; |
| u8 pll_ext_cntl; |
| u8 ext_vpll_cntl; |
| u8 spll_cntl2; |
| u32 dsp_config; /* Mach64 GTB DSP */ |
| u32 dsp_on_off; /* Mach64 GTB DSP */ |
| u32 dsp_loop_latency; |
| u32 fifo_size; |
| u32 xclkpagefaultdelay; |
| u32 xclkmaxrasdelay; |
| u8 xclk_ref_div; |
| u8 xclk_post_div; |
| u8 mclk_post_div_real; |
| u8 xclk_post_div_real; |
| u8 vclk_post_div_real; |
| u8 features; |
| #ifdef CONFIG_FB_ATY_GENERIC_LCD |
| u32 xres; /* use for LCD stretching/scaling */ |
| #endif |
| }; |
| |
| /* |
| for pll_ct.features |
| */ |
| #define DONT_USE_SPLL 0x1 |
| #define DONT_USE_XDLL 0x2 |
| #define USE_CPUCLK 0x4 |
| #define POWERDOWN_PLL 0x8 |
| |
| union aty_pll { |
| struct pll_ct ct; |
| struct pll_514 ibm514; |
| struct pll_18818 ics2595; |
| }; |
| |
| /* |
| * The hardware parameters for each card |
| */ |
| |
| struct atyfb_par { |
| u32 pseudo_palette[16]; |
| struct { u8 red, green, blue; } palette[256]; |
| const struct aty_dac_ops *dac_ops; |
| const struct aty_pll_ops *pll_ops; |
| void __iomem *ati_regbase; |
| unsigned long clk_wr_offset; /* meaning overloaded, clock id by CT */ |
| struct crtc crtc; |
| union aty_pll pll; |
| struct pll_info pll_limits; |
| u32 features; |
| u32 ref_clk_per; |
| u32 pll_per; |
| u32 mclk_per; |
| u32 xclk_per; |
| u8 bus_type; |
| u8 ram_type; |
| u8 mem_refresh_rate; |
| u16 pci_id; |
| u32 accel_flags; |
| int blitter_may_be_busy; |
| unsigned fifo_space; |
| int asleep; |
| int lock_blank; |
| unsigned long res_start; |
| unsigned long res_size; |
| struct pci_dev *pdev; |
| #ifdef __sparc__ |
| struct pci_mmap_map *mmap_map; |
| u8 mmaped; |
| #endif |
| int open; |
| #ifdef CONFIG_FB_ATY_GENERIC_LCD |
| unsigned long bios_base_phys; |
| unsigned long bios_base; |
| unsigned long lcd_table; |
| u16 lcd_width; |
| u16 lcd_height; |
| u32 lcd_pixclock; |
| u16 lcd_refreshrate; |
| u16 lcd_htotal; |
| u16 lcd_hdisp; |
| u16 lcd_hsync_dly; |
| u16 lcd_hsync_len; |
| u16 lcd_vtotal; |
| u16 lcd_vdisp; |
| u16 lcd_vsync_len; |
| u16 lcd_right_margin; |
| u16 lcd_lower_margin; |
| u16 lcd_hblank_len; |
| u16 lcd_vblank_len; |
| #endif |
| unsigned long aux_start; /* auxiliary aperture */ |
| unsigned long aux_size; |
| struct aty_interrupt vblank; |
| unsigned long irq_flags; |
| unsigned int irq; |
| spinlock_t int_lock; |
| int wc_cookie; |
| u32 mem_cntl; |
| struct crtc saved_crtc; |
| union aty_pll saved_pll; |
| }; |
| |
| /* |
| * ATI Mach64 features |
| */ |
| |
| #define M64_HAS(feature) ((par)->features & (M64F_##feature)) |
| |
| #define M64F_RESET_3D 0x00000001 |
| #define M64F_MAGIC_FIFO 0x00000002 |
| #define M64F_GTB_DSP 0x00000004 |
| #define M64F_FIFO_32 0x00000008 |
| #define M64F_SDRAM_MAGIC_PLL 0x00000010 |
| #define M64F_MAGIC_POSTDIV 0x00000020 |
| #define M64F_INTEGRATED 0x00000040 |
| #define M64F_CT_BUS 0x00000080 |
| #define M64F_VT_BUS 0x00000100 |
| #define M64F_MOBIL_BUS 0x00000200 |
| #define M64F_GX 0x00000400 |
| #define M64F_CT 0x00000800 |
| #define M64F_VT 0x00001000 |
| #define M64F_GT 0x00002000 |
| #define M64F_MAGIC_VRAM_SIZE 0x00004000 |
| #define M64F_G3_PB_1_1 0x00008000 |
| #define M64F_G3_PB_1024x768 0x00010000 |
| #define M64F_EXTRA_BRIGHT 0x00020000 |
| #define M64F_LT_LCD_REGS 0x00040000 |
| #define M64F_XL_DLL 0x00080000 |
| #define M64F_MFB_FORCE_4 0x00100000 |
| #define M64F_HW_TRIPLE 0x00200000 |
| #define M64F_XL_MEM 0x00400000 |
| /* |
| * Register access |
| */ |
| |
| static inline u32 aty_ld_le32(int regindex, const struct atyfb_par *par) |
| { |
| /* Hack for bloc 1, should be cleanly optimized by compiler */ |
| if (regindex >= 0x400) |
| regindex -= 0x800; |
| |
| #ifdef CONFIG_ATARI |
| return in_le32(par->ati_regbase + regindex); |
| #else |
| return readl(par->ati_regbase + regindex); |
| #endif |
| } |
| |
| static inline void aty_st_le32(int regindex, u32 val, const struct atyfb_par *par) |
| { |
| /* Hack for bloc 1, should be cleanly optimized by compiler */ |
| if (regindex >= 0x400) |
| regindex -= 0x800; |
| |
| #ifdef CONFIG_ATARI |
| out_le32(par->ati_regbase + regindex, val); |
| #else |
| writel(val, par->ati_regbase + regindex); |
| #endif |
| } |
| |
| static inline void aty_st_le16(int regindex, u16 val, |
| const struct atyfb_par *par) |
| { |
| /* Hack for bloc 1, should be cleanly optimized by compiler */ |
| if (regindex >= 0x400) |
| regindex -= 0x800; |
| #ifdef CONFIG_ATARI |
| out_le16(par->ati_regbase + regindex, val); |
| #else |
| writel(val, par->ati_regbase + regindex); |
| #endif |
| } |
| |
| static inline u8 aty_ld_8(int regindex, const struct atyfb_par *par) |
| { |
| /* Hack for bloc 1, should be cleanly optimized by compiler */ |
| if (regindex >= 0x400) |
| regindex -= 0x800; |
| #ifdef CONFIG_ATARI |
| return in_8(par->ati_regbase + regindex); |
| #else |
| return readb(par->ati_regbase + regindex); |
| #endif |
| } |
| |
| static inline void aty_st_8(int regindex, u8 val, const struct atyfb_par *par) |
| { |
| /* Hack for bloc 1, should be cleanly optimized by compiler */ |
| if (regindex >= 0x400) |
| regindex -= 0x800; |
| |
| #ifdef CONFIG_ATARI |
| out_8(par->ati_regbase + regindex, val); |
| #else |
| writeb(val, par->ati_regbase + regindex); |
| #endif |
| } |
| |
| extern void aty_st_lcd(int index, u32 val, const struct atyfb_par *par); |
| extern u32 aty_ld_lcd(int index, const struct atyfb_par *par); |
| |
| /* |
| * DAC operations |
| */ |
| |
| struct aty_dac_ops { |
| int (*set_dac) (const struct fb_info * info, |
| const union aty_pll * pll, u32 bpp, u32 accel); |
| }; |
| |
| extern const struct aty_dac_ops aty_dac_ibm514; /* IBM RGB514 */ |
| extern const struct aty_dac_ops aty_dac_ati68860b; /* ATI 68860-B */ |
| extern const struct aty_dac_ops aty_dac_att21c498; /* AT&T 21C498 */ |
| extern const struct aty_dac_ops aty_dac_unsupported; /* unsupported */ |
| extern const struct aty_dac_ops aty_dac_ct; /* Integrated */ |
| |
| |
| /* |
| * Clock operations |
| */ |
| |
| struct aty_pll_ops { |
| int (*var_to_pll) (const struct fb_info * info, u32 vclk_per, u32 bpp, union aty_pll * pll); |
| u32 (*pll_to_var) (const struct fb_info * info, const union aty_pll * pll); |
| void (*set_pll) (const struct fb_info * info, const union aty_pll * pll); |
| void (*get_pll) (const struct fb_info *info, union aty_pll * pll); |
| int (*init_pll) (const struct fb_info * info, union aty_pll * pll); |
| void (*resume_pll)(const struct fb_info *info, union aty_pll *pll); |
| }; |
| |
| extern const struct aty_pll_ops aty_pll_ati18818_1; /* ATI 18818 */ |
| extern const struct aty_pll_ops aty_pll_stg1703; /* STG 1703 */ |
| extern const struct aty_pll_ops aty_pll_ch8398; /* Chrontel 8398 */ |
| extern const struct aty_pll_ops aty_pll_att20c408; /* AT&T 20C408 */ |
| extern const struct aty_pll_ops aty_pll_ibm514; /* IBM RGB514 */ |
| extern const struct aty_pll_ops aty_pll_unsupported; /* unsupported */ |
| extern const struct aty_pll_ops aty_pll_ct; /* Integrated */ |
| |
| |
| extern void aty_set_pll_ct(const struct fb_info *info, const union aty_pll *pll); |
| extern u8 aty_ld_pll_ct(int offset, const struct atyfb_par *par); |
| |
| extern const u8 aty_postdividers[8]; |
| |
| |
| /* |
| * Hardware cursor support |
| */ |
| |
| extern int aty_init_cursor(struct fb_info *info, struct fb_ops *atyfb_ops); |
| |
| /* |
| * Hardware acceleration |
| */ |
| |
| static inline void wait_for_fifo(u16 entries, struct atyfb_par *par) |
| { |
| unsigned fifo_space = par->fifo_space; |
| while (entries > fifo_space) { |
| fifo_space = 16 - fls(aty_ld_le32(FIFO_STAT, par) & 0xffff); |
| } |
| par->fifo_space = fifo_space - entries; |
| } |
| |
| static inline void wait_for_idle(struct atyfb_par *par) |
| { |
| wait_for_fifo(16, par); |
| while ((aty_ld_le32(GUI_STAT, par) & 1) != 0); |
| par->blitter_may_be_busy = 0; |
| } |
| |
| extern void aty_reset_engine(struct atyfb_par *par); |
| extern void aty_init_engine(struct atyfb_par *par, struct fb_info *info); |
| |
| void atyfb_copyarea(struct fb_info *info, const struct fb_copyarea *area); |
| void atyfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect); |
| void atyfb_imageblit(struct fb_info *info, const struct fb_image *image); |
| |