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atyfb.h
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1 /*
2  * ATI Frame Buffer Device Driver Core Definitions
3  */
4 
5 #include <linux/spinlock.h>
6 #include <linux/wait.h>
7  /*
8  * Elements of the hardware specific atyfb_par structure
9  */
10 
11 struct crtc {
24  u32 dp_pix_width; /* acceleration */
25  u32 dp_chain_mask; /* acceleration */
26 #ifdef CONFIG_FB_ATY_GENERIC_LCD
27  u32 horz_stretching;
28  u32 vert_stretching;
29  u32 ext_vert_stretch;
30  u32 shadow_h_tot_disp;
31  u32 shadow_h_sync_strt_wid;
32  u32 shadow_v_tot_disp;
33  u32 shadow_v_sync_strt_wid;
34  u32 lcd_gen_cntl;
35  u32 lcd_config_panel;
36  u32 lcd_index;
37 #endif
38 };
39 
40 struct aty_interrupt {
42  unsigned int count;
44 };
45 
46 struct pll_info {
47  int pll_max;
48  int pll_min;
50  int ref_div;
51  int ref_clk;
52  int ecp_max;
53 };
54 
55 typedef struct {
67 } __attribute__ ((packed)) PLL_BLOCK_MACH64;
68 
70  u8 m;
71  u8 n;
72 };
73 
74 struct pll_18818 {
79 };
80 
81 struct pll_ct {
85  u8 mclk_fb_mult; /* 2 ro 4 */
93  u32 dsp_config; /* Mach64 GTB DSP */
94  u32 dsp_on_off; /* Mach64 GTB DSP */
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;
122 };
123 
124  /*
125  * The hardware parameters for each card
126  */
127 
128 struct atyfb_par {
130  struct { u8 red, green, blue; } palette[256];
131  const struct aty_dac_ops *dac_ops;
132  const struct aty_pll_ops *pll_ops;
134  unsigned long clk_wr_offset; /* meaning overloaded, clock id by CT */
135  struct crtc crtc;
136  union aty_pll pll;
149  int asleep;
151  unsigned long res_start;
152  unsigned long res_size;
153  struct pci_dev *pdev;
154 #ifdef __sparc__
155  struct pci_mmap_map *mmap_map;
156  u8 mmaped;
157 #endif
158  int open;
159 #ifdef CONFIG_FB_ATY_GENERIC_LCD
160  unsigned long bios_base_phys;
161  unsigned long bios_base;
162  unsigned long lcd_table;
163  u16 lcd_width;
164  u16 lcd_height;
165  u32 lcd_pixclock;
166  u16 lcd_refreshrate;
167  u16 lcd_htotal;
168  u16 lcd_hdisp;
169  u16 lcd_hsync_dly;
170  u16 lcd_hsync_len;
171  u16 lcd_vtotal;
172  u16 lcd_vdisp;
173  u16 lcd_vsync_len;
174  u16 lcd_right_margin;
175  u16 lcd_lower_margin;
176  u16 lcd_hblank_len;
177  u16 lcd_vblank_len;
178 #endif
179  unsigned long aux_start; /* auxiliary aperture */
180  unsigned long aux_size;
182  unsigned long irq_flags;
183  unsigned int irq;
185 #ifdef CONFIG_MTRR
186  int mtrr_aper;
187  int mtrr_reg;
188 #endif
190  struct crtc saved_crtc;
192 };
193 
194  /*
195  * ATI Mach64 features
196  */
197 
198 #define M64_HAS(feature) ((par)->features & (M64F_##feature))
199 
200 #define M64F_RESET_3D 0x00000001
201 #define M64F_MAGIC_FIFO 0x00000002
202 #define M64F_GTB_DSP 0x00000004
203 #define M64F_FIFO_32 0x00000008
204 #define M64F_SDRAM_MAGIC_PLL 0x00000010
205 #define M64F_MAGIC_POSTDIV 0x00000020
206 #define M64F_INTEGRATED 0x00000040
207 #define M64F_CT_BUS 0x00000080
208 #define M64F_VT_BUS 0x00000100
209 #define M64F_MOBIL_BUS 0x00000200
210 #define M64F_GX 0x00000400
211 #define M64F_CT 0x00000800
212 #define M64F_VT 0x00001000
213 #define M64F_GT 0x00002000
214 #define M64F_MAGIC_VRAM_SIZE 0x00004000
215 #define M64F_G3_PB_1_1 0x00008000
216 #define M64F_G3_PB_1024x768 0x00010000
217 #define M64F_EXTRA_BRIGHT 0x00020000
218 #define M64F_LT_LCD_REGS 0x00040000
219 #define M64F_XL_DLL 0x00080000
220 #define M64F_MFB_FORCE_4 0x00100000
221 #define M64F_HW_TRIPLE 0x00200000
222 #define M64F_XL_MEM 0x00400000
223  /*
224  * Register access
225  */
226 
227 static inline u32 aty_ld_le32(int regindex, const struct atyfb_par *par)
228 {
229  /* Hack for bloc 1, should be cleanly optimized by compiler */
230  if (regindex >= 0x400)
231  regindex -= 0x800;
232 
233 #ifdef CONFIG_ATARI
234  return in_le32(par->ati_regbase + regindex);
235 #else
236  return readl(par->ati_regbase + regindex);
237 #endif
238 }
239 
240 static inline void aty_st_le32(int regindex, u32 val, const struct atyfb_par *par)
241 {
242  /* Hack for bloc 1, should be cleanly optimized by compiler */
243  if (regindex >= 0x400)
244  regindex -= 0x800;
245 
246 #ifdef CONFIG_ATARI
247  out_le32(par->ati_regbase + regindex, val);
248 #else
249  writel(val, par->ati_regbase + regindex);
250 #endif
251 }
252 
253 static inline void aty_st_le16(int regindex, u16 val,
254  const struct atyfb_par *par)
255 {
256  /* Hack for bloc 1, should be cleanly optimized by compiler */
257  if (regindex >= 0x400)
258  regindex -= 0x800;
259 #ifdef CONFIG_ATARI
260  out_le16(par->ati_regbase + regindex, val);
261 #else
262  writel(val, par->ati_regbase + regindex);
263 #endif
264 }
265 
266 static inline u8 aty_ld_8(int regindex, const struct atyfb_par *par)
267 {
268  /* Hack for bloc 1, should be cleanly optimized by compiler */
269  if (regindex >= 0x400)
270  regindex -= 0x800;
271 #ifdef CONFIG_ATARI
272  return in_8(par->ati_regbase + regindex);
273 #else
274  return readb(par->ati_regbase + regindex);
275 #endif
276 }
277 
278 static inline void aty_st_8(int regindex, u8 val, const struct atyfb_par *par)
279 {
280  /* Hack for bloc 1, should be cleanly optimized by compiler */
281  if (regindex >= 0x400)
282  regindex -= 0x800;
283 
284 #ifdef CONFIG_ATARI
285  out_8(par->ati_regbase + regindex, val);
286 #else
287  writeb(val, par->ati_regbase + regindex);
288 #endif
289 }
290 
291 #if defined(CONFIG_PM) || defined(CONFIG_PMAC_BACKLIGHT) || \
292 defined (CONFIG_FB_ATY_GENERIC_LCD) || defined (CONFIG_FB_ATY_BACKLIGHT)
293 extern void aty_st_lcd(int index, u32 val, const struct atyfb_par *par);
294 extern u32 aty_ld_lcd(int index, const struct atyfb_par *par);
295 #endif
296 
297  /*
298  * DAC operations
299  */
300 
301 struct aty_dac_ops {
302  int (*set_dac) (const struct fb_info * info,
303  const union aty_pll * pll, u32 bpp, u32 accel);
304 };
305 
306 extern const struct aty_dac_ops aty_dac_ibm514; /* IBM RGB514 */
307 extern const struct aty_dac_ops aty_dac_ati68860b; /* ATI 68860-B */
308 extern const struct aty_dac_ops aty_dac_att21c498; /* AT&T 21C498 */
309 extern const struct aty_dac_ops aty_dac_unsupported; /* unsupported */
310 extern const struct aty_dac_ops aty_dac_ct; /* Integrated */
311 
312 
313  /*
314  * Clock operations
315  */
316 
317 struct aty_pll_ops {
318  int (*var_to_pll) (const struct fb_info * info, u32 vclk_per, u32 bpp, union aty_pll * pll);
319  u32 (*pll_to_var) (const struct fb_info * info, const union aty_pll * pll);
320  void (*set_pll) (const struct fb_info * info, const union aty_pll * pll);
321  void (*get_pll) (const struct fb_info *info, union aty_pll * pll);
322  int (*init_pll) (const struct fb_info * info, union aty_pll * pll);
323  void (*resume_pll)(const struct fb_info *info, union aty_pll *pll);
324 };
325 
326 extern const struct aty_pll_ops aty_pll_ati18818_1; /* ATI 18818 */
327 extern const struct aty_pll_ops aty_pll_stg1703; /* STG 1703 */
328 extern const struct aty_pll_ops aty_pll_ch8398; /* Chrontel 8398 */
329 extern const struct aty_pll_ops aty_pll_att20c408; /* AT&T 20C408 */
330 extern const struct aty_pll_ops aty_pll_ibm514; /* IBM RGB514 */
331 extern const struct aty_pll_ops aty_pll_unsupported; /* unsupported */
332 extern const struct aty_pll_ops aty_pll_ct; /* Integrated */
333 
334 
335 extern void aty_set_pll_ct(const struct fb_info *info, const union aty_pll *pll);
336 extern u8 aty_ld_pll_ct(int offset, const struct atyfb_par *par);
337 
338 
339  /*
340  * Hardware cursor support
341  */
342 
343 extern int aty_init_cursor(struct fb_info *info);
344 
345  /*
346  * Hardware acceleration
347  */
348 
349 static inline void wait_for_fifo(u16 entries, const struct atyfb_par *par)
350 {
351  while ((aty_ld_le32(FIFO_STAT, par) & 0xffff) >
352  ((u32) (0x8000 >> entries)));
353 }
354 
355 static inline void wait_for_idle(struct atyfb_par *par)
356 {
357  wait_for_fifo(16, par);
358  while ((aty_ld_le32(GUI_STAT, par) & 1) != 0);
359  par->blitter_may_be_busy = 0;
360 }
361 
362 extern void aty_reset_engine(const struct atyfb_par *par);
363 extern void aty_init_engine(struct atyfb_par *par, struct fb_info *info);
364 extern u8 aty_ld_pll_ct(int offset, const struct atyfb_par *par);
365 
366 void atyfb_copyarea(struct fb_info *info, const struct fb_copyarea *area);
367 void atyfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect);
368 void atyfb_imageblit(struct fb_info *info, const struct fb_image *image);
369