drivers/video/aty/atyfb.h

   1 /*
   2  *  ATI Frame Buffer Device Driver Core Definitions
   3  */
   4
   5 #include <linux/config.h>
   6 #include <linux/spinlock.h>
   7 #include <linux/wait.h>
   8     /*
   9      *  Elements of the hardware specific atyfb_par structure
  10      */
  11
  12 struct crtc {
  13         u32 vxres;
  14         u32 vyres;
  15         u32 xoffset;
  16         u32 yoffset;
  17         u32 bpp;
  18         u32 h_tot_disp;
  19         u32 h_sync_strt_wid;
  20         u32 v_tot_disp;
  21         u32 v_sync_strt_wid;
  22         u32 vline_crnt_vline;
  23         u32 off_pitch;
  24         u32 gen_cntl;
  25         u32 dp_pix_width;       /* acceleration */
  26         u32 dp_chain_mask;      /* acceleration */
  27 #ifdef CONFIG_FB_ATY_GENERIC_LCD
  28         u32 horz_stretching;
  29         u32 vert_stretching;
  30         u32 ext_vert_stretch;
  31         u32 shadow_h_tot_disp;
  32         u32 shadow_h_sync_strt_wid;
  33         u32 shadow_v_tot_disp;
  34         u32 shadow_v_sync_strt_wid;
  35         u32 lcd_gen_cntl;
  36         u32 lcd_config_panel;
  37         u32 lcd_index;
  38 #endif
  39 };
  40
  41 struct aty_interrupt {
  42         wait_queue_head_t wait;
  43         unsigned int count;
  44         int pan_display;
  45 };
  46
  47 struct pll_info {
  48         int pll_max;
  49         int pll_min;
  50         int sclk, mclk, mclk_pm, xclk;
  51         int ref_div;
  52         int ref_clk;
  53 };
  54
  55 typedef struct {
  56         u16 unknown1;
  57         u16 PCLK_min_freq;
  58         u16 PCLK_max_freq;
  59         u16 unknown2;
  60         u16 ref_freq;
  61         u16 ref_divider;
  62         u16 unknown3;
  63         u16 MCLK_pwd;
  64         u16 MCLK_max_freq;
  65         u16 XCLK_max_freq;
  66         u16 SCLK_freq;
  67 } __attribute__ ((packed)) PLL_BLOCK_MACH64;
  68
  69 struct pll_514 {
  70         u8 m;
  71         u8 n;
  72 };
  73
  74 struct pll_18818 {
  75         u32 program_bits;
  76         u32 locationAddr;
  77         u32 period_in_ps;
  78         u32 post_divider;
  79 };
  80
  81 struct pll_ct {
  82         u8 pll_ref_div;
  83         u8 pll_gen_cntl;
  84         u8 mclk_fb_div;
  85         u8 mclk_fb_mult; /* 2 ro 4 */
  86         u8 sclk_fb_div;
  87         u8 pll_vclk_cntl;
  88         u8 vclk_post_div;
  89         u8 vclk_fb_div;
  90         u8 pll_ext_cntl;
  91         u8 ext_vpll_cntl;
  92         u8 spll_cntl2;
  93         u32 dsp_config; /* Mach64 GTB DSP */
  94         u32 dsp_on_off; /* Mach64 GTB DSP */
  95         u32 dsp_loop_latency;
  96         u32 fifo_size;
  97         u32 xclkpagefaultdelay;
  98         u32 xclkmaxrasdelay;
  99         u8 xclk_ref_div;
 100         u8 xclk_post_div;
 101         u8 mclk_post_div_real;
 102         u8 xclk_post_div_real;
 103         u8 vclk_post_div_real;
 104         u8 features;
 105 #ifdef CONFIG_FB_ATY_GENERIC_LCD
 106         u32 xres; /* use for LCD stretching/scaling */
 107 #endif
 108 };
 109
 110 /*
 111         for pll_ct.features
 112 */
 113 #define DONT_USE_SPLL 0x1
 114 #define DONT_USE_XDLL 0x2
 115 #define USE_CPUCLK    0x4
 116 #define POWERDOWN_PLL 0x8
 117
 118 union aty_pll {
 119         struct pll_ct ct;
 120         struct pll_514 ibm514;
 121         struct pll_18818 ics2595;
 122 };
 123
 124     /*
 125      *  The hardware parameters for each card
 126      */
 127
 128 struct atyfb_par {
 129         struct aty_cmap_regs __iomem *aty_cmap_regs;
 130         struct { u8 red, green, blue; } palette[256];
 131         const struct aty_dac_ops *dac_ops;
 132         const struct aty_pll_ops *pll_ops;
 133         void __iomem *ati_regbase;
 134         unsigned long clk_wr_offset; /* meaning overloaded, clock id by CT */
 135         struct crtc crtc;
 136         union aty_pll pll;
 137         struct pll_info pll_limits;
 138         u32 features;
 139         u32 ref_clk_per;
 140         u32 pll_per;
 141         u32 mclk_per;
 142         u32 xclk_per;
 143         u8 bus_type;
 144         u8 ram_type;
 145         u8 mem_refresh_rate;
 146         u16 pci_id;
 147         u32 accel_flags;
 148         int blitter_may_be_busy;
 149         int asleep;
 150         int lock_blank;
 151         unsigned long res_start;
 152         unsigned long res_size;
 153 #ifdef __sparc__
 154         struct pci_mmap_map *mmap_map;
 155         u8 mmaped;
 156 #endif
 157         int open;
 158 #ifdef CONFIG_FB_ATY_GENERIC_LCD
 159         unsigned long bios_base_phys;
 160         unsigned long bios_base;
 161         unsigned long lcd_table;
 162         u16 lcd_width;
 163         u16 lcd_height;
 164         u32 lcd_pixclock;
 165         u16 lcd_refreshrate;
 166         u16 lcd_htotal;
 167         u16 lcd_hdisp;
 168         u16 lcd_hsync_dly;
 169         u16 lcd_hsync_len;
 170         u16 lcd_vtotal;
 171         u16 lcd_vdisp;
 172         u16 lcd_vsync_len;
 173         u16 lcd_right_margin;
 174         u16 lcd_lower_margin;
 175         u16 lcd_hblank_len;
 176         u16 lcd_vblank_len;
 177 #endif
 178         unsigned long aux_start; /* auxiliary aperture */
 179         unsigned long aux_size;
 180         struct aty_interrupt vblank;
 181         unsigned long irq_flags;
 182         unsigned int irq;
 183         spinlock_t int_lock;
 184 #ifdef CONFIG_MTRR
 185         int mtrr_aper;
 186         int mtrr_reg;
 187 #endif
 188 };
 189
 190     /*
 191      *  ATI Mach64 features
 192      */
 193
 194 #define M64_HAS(feature)        ((par)->features & (M64F_##feature))
 195
 196 #define M64F_RESET_3D           0x00000001
 197 #define M64F_MAGIC_FIFO         0x00000002
 198 #define M64F_GTB_DSP            0x00000004
 199 #define M64F_FIFO_32            0x00000008
 200 #define M64F_SDRAM_MAGIC_PLL    0x00000010
 201 #define M64F_MAGIC_POSTDIV      0x00000020
 202 #define M64F_INTEGRATED         0x00000040
 203 #define M64F_CT_BUS             0x00000080
 204 #define M64F_VT_BUS             0x00000100
 205 #define M64F_MOBIL_BUS          0x00000200
 206 #define M64F_GX                 0x00000400
 207 #define M64F_CT                 0x00000800
 208 #define M64F_VT                 0x00001000
 209 #define M64F_GT                 0x00002000
 210 #define M64F_MAGIC_VRAM_SIZE    0x00004000
 211 #define M64F_G3_PB_1_1          0x00008000
 212 #define M64F_G3_PB_1024x768     0x00010000
 213 #define M64F_EXTRA_BRIGHT       0x00020000
 214 #define M64F_LT_LCD_REGS        0x00040000
 215 #define M64F_XL_DLL             0x00080000
 216 #define M64F_MFB_FORCE_4        0x00100000
 217 #define M64F_HW_TRIPLE          0x00200000
 218     /*
 219      *  Register access
 220      */
 221
 222 static inline u32 aty_ld_le32(int regindex, const struct atyfb_par *par)
 223 {
 224         /* Hack for bloc 1, should be cleanly optimized by compiler */
 225         if (regindex >= 0x400)
 226                 regindex -= 0x800;
 227
 228 #ifdef CONFIG_ATARI
 229         return in_le32((volatile u32 *)(par->ati_regbase + regindex));
 230 #else
 231         return readl(par->ati_regbase + regindex);
 232 #endif
 233 }
 234
 235 static inline void aty_st_le32(int regindex, u32 val, const struct atyfb_par *par)
 236 {
 237         /* Hack for bloc 1, should be cleanly optimized by compiler */
 238         if (regindex >= 0x400)
 239                 regindex -= 0x800;
 240
 241 #ifdef CONFIG_ATARI
 242         out_le32((volatile u32 *)(par->ati_regbase + regindex), val);
 243 #else
 244         writel(val, par->ati_regbase + regindex);
 245 #endif
 246 }
 247
 248 static inline void aty_st_le16(int regindex, u16 val,
 249                                const struct atyfb_par *par)
 250 {
 251         /* Hack for bloc 1, should be cleanly optimized by compiler */
 252         if (regindex >= 0x400)
 253                 regindex -= 0x800;
 254 #ifdef CONFIG_ATARI
 255         out_le16((volatile u16 *)(par->ati_regbase + regindex), val);
 256 #else
 257         writel(val, par->ati_regbase + regindex);
 258 #endif
 259 }
 260
 261 static inline u8 aty_ld_8(int regindex, const struct atyfb_par *par)
 262 {
 263         /* Hack for bloc 1, should be cleanly optimized by compiler */
 264         if (regindex >= 0x400)
 265                 regindex -= 0x800;
 266 #ifdef CONFIG_ATARI
 267         return in_8(par->ati_regbase + regindex);
 268 #else
 269         return readb(par->ati_regbase + regindex);
 270 #endif
 271 }
 272
 273 static inline void aty_st_8(int regindex, u8 val, const struct atyfb_par *par)
 274 {
 275         /* Hack for bloc 1, should be cleanly optimized by compiler */
 276         if (regindex >= 0x400)
 277                 regindex -= 0x800;
 278
 279 #ifdef CONFIG_ATARI
 280         out_8(par->ati_regbase + regindex, val);
 281 #else
 282         writeb(val, par->ati_regbase + regindex);
 283 #endif
 284 }
 285
 286 #if defined(CONFIG_PM) || defined(CONFIG_PMAC_BACKLIGHT) || defined (CONFIG_FB_ATY_GENERIC_LCD)
 287 extern void aty_st_lcd(int index, u32 val, const struct atyfb_par *par);
 288 extern u32 aty_ld_lcd(int index, const struct atyfb_par *par);
 289 #endif
 290
 291     /*
 292      *  DAC operations
 293      */
 294
 295 struct aty_dac_ops {
 296         int (*set_dac) (const struct fb_info * info,
 297                 const union aty_pll * pll, u32 bpp, u32 accel);
 298 };
 299
 300 extern const struct aty_dac_ops aty_dac_ibm514; /* IBM RGB514 */
 301 extern const struct aty_dac_ops aty_dac_ati68860b; /* ATI 68860-B */
 302 extern const struct aty_dac_ops aty_dac_att21c498; /* AT&T 21C498 */
 303 extern const struct aty_dac_ops aty_dac_unsupported; /* unsupported */
 304 extern const struct aty_dac_ops aty_dac_ct; /* Integrated */
 305
 306
 307     /*
 308      *  Clock operations
 309      */
 310
 311 struct aty_pll_ops {
 312         int (*var_to_pll) (const struct fb_info * info, u32 vclk_per, u32 bpp, union aty_pll * pll);
 313         u32 (*pll_to_var) (const struct fb_info * info, const union aty_pll * pll);
 314         void (*set_pll)   (const struct fb_info * info, const union aty_pll * pll);
 315         void (*get_pll)   (const struct fb_info *info, union aty_pll * pll);
 316         int (*init_pll)   (const struct fb_info * info, union aty_pll * pll);
 317 };
 318
 319 extern const struct aty_pll_ops aty_pll_ati18818_1; /* ATI 18818 */
 320 extern const struct aty_pll_ops aty_pll_stg1703; /* STG 1703 */
 321 extern const struct aty_pll_ops aty_pll_ch8398; /* Chrontel 8398 */
 322 extern const struct aty_pll_ops aty_pll_att20c408; /* AT&T 20C408 */
 323 extern const struct aty_pll_ops aty_pll_ibm514; /* IBM RGB514 */
 324 extern const struct aty_pll_ops aty_pll_unsupported; /* unsupported */
 325 extern const struct aty_pll_ops aty_pll_ct; /* Integrated */
 326
 327
 328 extern void aty_set_pll_ct(const struct fb_info *info, const union aty_pll *pll);
 329 extern u8 aty_ld_pll_ct(int offset, const struct atyfb_par *par);
 330
 331
 332     /*
 333      *  Hardware cursor support
 334      */
 335
 336 extern int aty_init_cursor(struct fb_info *info);
 337
 338     /*
 339      *  Hardware acceleration
 340      */
 341
 342 static inline void wait_for_fifo(u16 entries, const struct atyfb_par *par)
 343 {
 344         while ((aty_ld_le32(FIFO_STAT, par) & 0xffff) >
 345                ((u32) (0x8000 >> entries)));
 346 }
 347
 348 static inline void wait_for_idle(struct atyfb_par *par)
 349 {
 350         wait_for_fifo(16, par);
 351         while ((aty_ld_le32(GUI_STAT, par) & 1) != 0);
 352         par->blitter_may_be_busy = 0;
 353 }
 354
 355 extern void aty_reset_engine(const struct atyfb_par *par);
 356 extern void aty_init_engine(struct atyfb_par *par, struct fb_info *info);
 357 extern int  atyfb_xl_init(struct fb_info *info);
 358 extern void aty_st_pll_ct(int offset, u8 val, const struct atyfb_par *par);
 359 extern u8   aty_ld_pll_ct(int offset, const struct atyfb_par *par);