4 /* generic STI structures & functions */
7 #define DPRINTK(x) printk x
12 #define MAX_STI_ROMS 4 /* max no. of ROMs which this driver handles */
14 #define STI_REGION_MAX 8 /* hardcoded STI constants */
15 #define STI_DEV_NAME_LENGTH 32
16 #define STI_MONITOR_MAX 256
18 #define STI_FONT_HPROMAN8 1
19 #define STI_FONT_KANA8 2
21 /* The latency of the STI functions cannot really be reduced by setting
22 * this to 0; STI doesn't seem to be designed to allow calling a different
23 * function (or the same function with different arguments) after a
24 * function exited with 1 as return value.
26 * As all of the functions below could be called from interrupt context,
27 * we have to spin_lock_irqsave around the do { ret = bla(); } while(ret==1)
28 * block. Really bad latency there.
30 * Probably the best solution to all this is have the generic code manage
31 * the screen buffer and a kernel thread to call STI occasionally.
33 * Luckily, the frame buffer guys have the same problem so we can just wait
34 * for them to fix it and steal their solution. prumpf
39 #include <asm/io.h> /* for USE_HPPA_IOREMAP */
43 #define STI_PTR(p) (p)
44 #define PTR_STI(p) (p)
45 static inline int STI_CALL( unsigned long func,
46 void *flags, void *inptr, void *outptr, void *glob_cfg )
48 int (*f)(void *,void *,void *,void *);
50 return f(flags, inptr, outptr, glob_cfg);
53 #else /* !USE_HPPA_IOREMAP */
55 #define STI_PTR(p) ( virt_to_phys(p) )
56 #define PTR_STI(p) ( phys_to_virt((long)p) )
57 #define STI_CALL(func, flags, inptr, outptr, glob_cfg) \
59 pdc_sti_call( func, (unsigned long)STI_PTR(flags), \
60 (unsigned long)STI_PTR(inptr), \
61 (unsigned long)STI_PTR(outptr), \
62 (unsigned long)STI_PTR(glob_cfg)); \
65 #endif /* USE_HPPA_IOREMAP */
68 #define sti_onscreen_x(sti) (sti->glob_cfg->onscreen_x)
69 #define sti_onscreen_y(sti) (sti->glob_cfg->onscreen_y)
71 /* sti_font_xy() use the native font ROM ! */
72 #define sti_font_x(sti) (PTR_STI(sti->font)->width)
73 #define sti_font_y(sti) (PTR_STI(sti->font)->height)
76 /* STI function configuration structs */
78 typedef union region {
80 u32 offset : 14; /* offset in 4kbyte page */
81 u32 sys_only : 1; /* don't map to user space */
82 u32 cache : 1; /* map to data cache */
83 u32 btlb : 1; /* map to block tlb */
84 u32 last : 1; /* last region in list */
85 u32 length : 14; /* length in 4kbyte page */
88 u32 region; /* complete region value */
91 #define REGION_OFFSET_TO_PHYS( rt, hpa ) \
92 (((rt).region_desc.offset << 12) + (hpa))
94 struct sti_glob_cfg_ext {
95 u8 curr_mon; /* current monitor configured */
96 u8 friendly_boot; /* in friendly boot mode */
97 s16 power; /* power calculation (in Watts) */
98 s32 freq_ref; /* frequency refrence */
99 u32 sti_mem_addr; /* pointer to global sti memory (size=sti_mem_request) */
100 u32 future_ptr; /* pointer to future data */
103 struct sti_glob_cfg {
104 s32 text_planes; /* number of planes used for text */
105 s16 onscreen_x; /* screen width in pixels */
106 s16 onscreen_y; /* screen height in pixels */
107 s16 offscreen_x; /* offset width in pixels */
108 s16 offscreen_y; /* offset height in pixels */
109 s16 total_x; /* frame buffer width in pixels */
110 s16 total_y; /* frame buffer height in pixels */
111 u32 region_ptrs[STI_REGION_MAX]; /* region pointers */
112 s32 reent_lvl; /* storage for reentry level value */
113 u32 save_addr; /* where to save or restore reentrant state */
114 u32 ext_ptr; /* pointer to extended glob_cfg data structure */
118 /* STI init function structs */
120 struct sti_init_flags {
121 u32 wait : 1; /* should routine idle wait or not */
122 u32 reset : 1; /* hard reset the device? */
123 u32 text : 1; /* turn on text display planes? */
124 u32 nontext : 1; /* turn on non-text display planes? */
125 u32 clear : 1; /* clear text display planes? */
126 u32 cmap_blk : 1; /* non-text planes cmap black? */
127 u32 enable_be_timer : 1; /* enable bus error timer */
128 u32 enable_be_int : 1; /* enable bus error timer interrupt */
129 u32 no_chg_tx : 1; /* don't change text settings */
130 u32 no_chg_ntx : 1; /* don't change non-text settings */
131 u32 no_chg_bet : 1; /* don't change berr timer settings */
132 u32 no_chg_bei : 1; /* don't change berr int settings */
133 u32 init_cmap_tx : 1; /* initialize cmap for text planes */
134 u32 cmt_chg : 1; /* change current monitor type */
135 u32 retain_ie : 1; /* don't allow reset to clear int enables */
136 u32 caller_bootrom : 1; /* set only by bootrom for each call */
137 u32 caller_kernel : 1; /* set only by kernel for each call */
138 u32 caller_other : 1; /* set only by non-[BR/K] caller */
139 u32 pad : 14; /* pad to word boundary */
140 u32 future_ptr; /* pointer to future data */
143 struct sti_init_inptr_ext {
144 u8 config_mon_type; /* configure to monitor type */
145 u8 pad[1]; /* pad to word boundary */
146 u16 inflight_data; /* inflight data possible on PCI */
147 u32 future_ptr; /* pointer to future data */
150 struct sti_init_inptr {
151 s32 text_planes; /* number of planes to use for text */
152 u32 ext_ptr; /* pointer to extended init_graph inptr data structure*/
156 struct sti_init_outptr {
157 s32 errno; /* error number on failure */
158 s32 text_planes; /* number of planes used for text */
159 u32 future_ptr; /* pointer to future data */
164 /* STI configuration function structs */
166 struct sti_conf_flags {
167 u32 wait : 1; /* should routine idle wait or not */
168 u32 pad : 31; /* pad to word boundary */
169 u32 future_ptr; /* pointer to future data */
172 struct sti_conf_inptr {
173 u32 future_ptr; /* pointer to future data */
176 struct sti_conf_outptr_ext {
177 u32 crt_config[3]; /* hardware specific X11/OGL information */
182 struct sti_conf_outptr {
183 s32 errno; /* error number on failure */
184 s16 onscreen_x; /* screen width in pixels */
185 s16 onscreen_y; /* screen height in pixels */
186 s16 offscreen_x; /* offscreen width in pixels */
187 s16 offscreen_y; /* offscreen height in pixels */
188 s16 total_x; /* frame buffer width in pixels */
189 s16 total_y; /* frame buffer height in pixels */
190 s32 bits_per_pixel; /* bits/pixel device has configured */
191 s32 bits_used; /* bits which can be accessed */
192 s32 planes; /* number of fb planes in system */
193 u8 dev_name[STI_DEV_NAME_LENGTH]; /* null terminated product name */
194 u32 attributes; /* flags denoting attributes */
195 u32 ext_ptr; /* pointer to future data */
242 u32 set_cm_entry_addr;
243 u32 image_unpack_addr;
244 u32 pa_risx_addrs[7];
247 struct sti_rom_font {
252 u8 font_type; /* language type */
260 /* sticore internal font handling */
262 struct sti_cooked_font {
263 struct sti_rom_font *raw;
264 struct sti_cooked_font *next_font;
267 struct sti_cooked_rom {
269 struct sti_cooked_font *font_start;
272 /* STI font printing function structs */
274 struct sti_font_inptr {
275 u32 font_start_addr; /* address of font start */
276 s16 index; /* index into font table of character */
277 u8 fg_color; /* foreground color of character */
278 u8 bg_color; /* background color of character */
279 s16 dest_x; /* X location of character upper left */
280 s16 dest_y; /* Y location of character upper left */
281 u32 future_ptr; /* pointer to future data */
284 struct sti_font_flags {
285 u32 wait : 1; /* should routine idle wait or not */
286 u32 non_text : 1; /* font unpack/move in non_text planes =1, text =0 */
287 u32 pad : 30; /* pad to word boundary */
288 u32 future_ptr; /* pointer to future data */
291 struct sti_font_outptr {
292 s32 errno; /* error number on failure */
293 u32 future_ptr; /* pointer to future data */
296 /* STI blockmove structs */
298 struct sti_blkmv_flags {
299 u32 wait : 1; /* should routine idle wait or not */
300 u32 color : 1; /* change color during move? */
301 u32 clear : 1; /* clear during move? */
302 u32 non_text : 1; /* block move in non_text planes =1, text =0 */
303 u32 pad : 28; /* pad to word boundary */
304 u32 future_ptr; /* pointer to future data */
307 struct sti_blkmv_inptr {
308 u8 fg_color; /* foreground color after move */
309 u8 bg_color; /* background color after move */
310 s16 src_x; /* source upper left pixel x location */
311 s16 src_y; /* source upper left pixel y location */
312 s16 dest_x; /* dest upper left pixel x location */
313 s16 dest_y; /* dest upper left pixel y location */
314 s16 width; /* block width in pixels */
315 s16 height; /* block height in pixels */
316 u32 future_ptr; /* pointer to future data */
319 struct sti_blkmv_outptr {
320 s32 errno; /* error number on failure */
321 u32 future_ptr; /* pointer to future data */
325 /* internal generic STI struct */
330 /* the following fields needs to be filled in by the word/byte routines */
333 /* char **mon_strings; */
337 struct sti_cooked_rom *rom;
339 unsigned long font_unpmv;
340 unsigned long block_move;
341 unsigned long init_graph;
342 unsigned long inq_conf;
344 /* all following fields are initialized by the generic routines */
346 region_t regions[STI_REGION_MAX];
347 unsigned long regions_phys[STI_REGION_MAX];
349 struct sti_glob_cfg *glob_cfg;
350 struct sti_cooked_font *font; /* ptr to selected font (cooked) */
352 struct sti_conf_outptr outptr; /* configuration */
353 struct sti_conf_outptr_ext outptr_ext;
355 /* PCI data structures (pg. 17ff from sti.pdf) */
357 u8 rm_entry[16]; /* pci region mapper array == pci config space offset */
359 /* pointer to the fb_info where this STI device is used */
360 struct fb_info *info;
364 /* sticore interface functions */
366 struct sti_struct *sti_get_rom(unsigned int index); /* 0: default sti */
368 /* functions to call the STI ROM directly */
370 int sti_init_graph(struct sti_struct *sti);
371 void sti_inq_conf(struct sti_struct *sti);
372 void sti_putc(struct sti_struct *sti, int c, int y, int x);
373 void sti_set(struct sti_struct *sti, int src_y, int src_x,
374 int height, int width, u8 color);
375 void sti_clear(struct sti_struct *sti, int src_y, int src_x,
376 int height, int width, int c);
377 void sti_bmove(struct sti_struct *sti, int src_y, int src_x,
378 int dst_y, int dst_x, int height, int width);
380 #endif /* STICORE_H */