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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef __RADEONFB_H__ |
3 | #define __RADEONFB_H__ | |
4 | ||
b0313f89 JD |
5 | #ifdef CONFIG_FB_RADEON_DEBUG |
6 | #define DEBUG 1 | |
7 | #endif | |
8 | ||
1da177e4 LT |
9 | #include <linux/module.h> |
10 | #include <linux/kernel.h> | |
11 | #include <linux/sched.h> | |
12 | #include <linux/delay.h> | |
13 | #include <linux/pci.h> | |
14 | #include <linux/fb.h> | |
15 | ||
16 | ||
e764a201 | 17 | #ifdef CONFIG_FB_RADEON_I2C |
1da177e4 | 18 | #include <linux/i2c.h> |
1da177e4 | 19 | #include <linux/i2c-algo-bit.h> |
e764a201 | 20 | #endif |
1da177e4 LT |
21 | |
22 | #include <asm/io.h> | |
23 | ||
758ddd1d | 24 | #if defined(CONFIG_PPC) || defined(CONFIG_SPARC) |
1da177e4 LT |
25 | #include <asm/prom.h> |
26 | #endif | |
27 | ||
28 | #include <video/radeon.h> | |
29 | ||
30 | /*************************************************************** | |
31 | * Most of the definitions here are adapted right from XFree86 * | |
32 | ***************************************************************/ | |
33 | ||
34 | ||
35 | /* | |
36 | * Chip families. Must fit in the low 16 bits of a long word | |
37 | */ | |
38 | enum radeon_family { | |
39 | CHIP_FAMILY_UNKNOW, | |
40 | CHIP_FAMILY_LEGACY, | |
41 | CHIP_FAMILY_RADEON, | |
42 | CHIP_FAMILY_RV100, | |
43 | CHIP_FAMILY_RS100, /* U1 (IGP320M) or A3 (IGP320)*/ | |
44 | CHIP_FAMILY_RV200, | |
45 | CHIP_FAMILY_RS200, /* U2 (IGP330M/340M/350M) or A4 (IGP330/340/345/350), | |
46 | RS250 (IGP 7000) */ | |
47 | CHIP_FAMILY_R200, | |
48 | CHIP_FAMILY_RV250, | |
49 | CHIP_FAMILY_RS300, /* Radeon 9000 IGP */ | |
50 | CHIP_FAMILY_RV280, | |
51 | CHIP_FAMILY_R300, | |
52 | CHIP_FAMILY_R350, | |
53 | CHIP_FAMILY_RV350, | |
54 | CHIP_FAMILY_RV380, /* RV370/RV380/M22/M24 */ | |
55 | CHIP_FAMILY_R420, /* R420/R423/M18 */ | |
0b693eaf | 56 | CHIP_FAMILY_RC410, |
a6c0c37d | 57 | CHIP_FAMILY_RS400, |
dd144713 | 58 | CHIP_FAMILY_RS480, |
1da177e4 LT |
59 | CHIP_FAMILY_LAST, |
60 | }; | |
61 | ||
62 | #define IS_RV100_VARIANT(rinfo) (((rinfo)->family == CHIP_FAMILY_RV100) || \ | |
63 | ((rinfo)->family == CHIP_FAMILY_RV200) || \ | |
64 | ((rinfo)->family == CHIP_FAMILY_RS100) || \ | |
65 | ((rinfo)->family == CHIP_FAMILY_RS200) || \ | |
66 | ((rinfo)->family == CHIP_FAMILY_RV250) || \ | |
67 | ((rinfo)->family == CHIP_FAMILY_RV280) || \ | |
68 | ((rinfo)->family == CHIP_FAMILY_RS300)) | |
69 | ||
70 | ||
71 | #define IS_R300_VARIANT(rinfo) (((rinfo)->family == CHIP_FAMILY_R300) || \ | |
72 | ((rinfo)->family == CHIP_FAMILY_RV350) || \ | |
73 | ((rinfo)->family == CHIP_FAMILY_R350) || \ | |
74 | ((rinfo)->family == CHIP_FAMILY_RV380) || \ | |
dd144713 | 75 | ((rinfo)->family == CHIP_FAMILY_R420) || \ |
0b693eaf SB |
76 | ((rinfo)->family == CHIP_FAMILY_RC410) || \ |
77 | ((rinfo)->family == CHIP_FAMILY_RS480)) | |
1da177e4 LT |
78 | |
79 | /* | |
80 | * Chip flags | |
81 | */ | |
82 | enum radeon_chip_flags { | |
83 | CHIP_FAMILY_MASK = 0x0000ffffUL, | |
84 | CHIP_FLAGS_MASK = 0xffff0000UL, | |
85 | CHIP_IS_MOBILITY = 0x00010000UL, | |
86 | CHIP_IS_IGP = 0x00020000UL, | |
87 | CHIP_HAS_CRTC2 = 0x00040000UL, | |
88 | }; | |
89 | ||
90 | /* | |
91 | * Errata workarounds | |
92 | */ | |
93 | enum radeon_errata { | |
94 | CHIP_ERRATA_R300_CG = 0x00000001, | |
95 | CHIP_ERRATA_PLL_DUMMYREADS = 0x00000002, | |
96 | CHIP_ERRATA_PLL_DELAY = 0x00000004, | |
97 | }; | |
98 | ||
99 | ||
100 | /* | |
101 | * Monitor types | |
102 | */ | |
103 | enum radeon_montype { | |
104 | MT_NONE = 0, | |
105 | MT_CRT, /* CRT */ | |
106 | MT_LCD, /* LCD */ | |
107 | MT_DFP, /* DVI */ | |
108 | MT_CTV, /* composite TV */ | |
109 | MT_STV /* S-Video out */ | |
110 | }; | |
111 | ||
112 | /* | |
113 | * DDC i2c ports | |
114 | */ | |
115 | enum ddc_type { | |
116 | ddc_none, | |
117 | ddc_monid, | |
118 | ddc_dvi, | |
119 | ddc_vga, | |
120 | ddc_crt2, | |
121 | }; | |
122 | ||
123 | /* | |
124 | * Connector types | |
125 | */ | |
126 | enum conn_type { | |
127 | conn_none, | |
128 | conn_proprietary, | |
129 | conn_crt, | |
130 | conn_DVI_I, | |
131 | conn_DVI_D, | |
132 | }; | |
133 | ||
134 | ||
135 | /* | |
136 | * PLL infos | |
137 | */ | |
138 | struct pll_info { | |
139 | int ppll_max; | |
140 | int ppll_min; | |
141 | int sclk, mclk; | |
142 | int ref_div; | |
143 | int ref_clk; | |
144 | }; | |
145 | ||
146 | ||
147 | /* | |
148 | * This structure contains the various registers manipulated by this | |
149 | * driver for setting or restoring a mode. It's mostly copied from | |
150 | * XFree's RADEONSaveRec structure. A few chip settings might still be | |
151 | * tweaked without beeing reflected or saved in these registers though | |
152 | */ | |
153 | struct radeon_regs { | |
154 | /* Common registers */ | |
155 | u32 ovr_clr; | |
156 | u32 ovr_wid_left_right; | |
157 | u32 ovr_wid_top_bottom; | |
158 | u32 ov0_scale_cntl; | |
159 | u32 mpp_tb_config; | |
160 | u32 mpp_gp_config; | |
161 | u32 subpic_cntl; | |
162 | u32 viph_control; | |
163 | u32 i2c_cntl_1; | |
164 | u32 gen_int_cntl; | |
165 | u32 cap0_trig_cntl; | |
166 | u32 cap1_trig_cntl; | |
167 | u32 bus_cntl; | |
168 | u32 surface_cntl; | |
169 | u32 bios_5_scratch; | |
170 | ||
171 | /* Other registers to save for VT switches or driver load/unload */ | |
172 | u32 dp_datatype; | |
173 | u32 rbbm_soft_reset; | |
174 | u32 clock_cntl_index; | |
175 | u32 amcgpio_en_reg; | |
176 | u32 amcgpio_mask; | |
177 | ||
178 | /* Surface/tiling registers */ | |
179 | u32 surf_lower_bound[8]; | |
180 | u32 surf_upper_bound[8]; | |
181 | u32 surf_info[8]; | |
182 | ||
183 | /* CRTC registers */ | |
184 | u32 crtc_gen_cntl; | |
185 | u32 crtc_ext_cntl; | |
186 | u32 dac_cntl; | |
187 | u32 crtc_h_total_disp; | |
188 | u32 crtc_h_sync_strt_wid; | |
189 | u32 crtc_v_total_disp; | |
190 | u32 crtc_v_sync_strt_wid; | |
191 | u32 crtc_offset; | |
192 | u32 crtc_offset_cntl; | |
193 | u32 crtc_pitch; | |
194 | u32 disp_merge_cntl; | |
195 | u32 grph_buffer_cntl; | |
196 | u32 crtc_more_cntl; | |
197 | ||
198 | /* CRTC2 registers */ | |
199 | u32 crtc2_gen_cntl; | |
200 | u32 dac2_cntl; | |
201 | u32 disp_output_cntl; | |
202 | u32 disp_hw_debug; | |
203 | u32 disp2_merge_cntl; | |
204 | u32 grph2_buffer_cntl; | |
205 | u32 crtc2_h_total_disp; | |
206 | u32 crtc2_h_sync_strt_wid; | |
207 | u32 crtc2_v_total_disp; | |
208 | u32 crtc2_v_sync_strt_wid; | |
209 | u32 crtc2_offset; | |
210 | u32 crtc2_offset_cntl; | |
211 | u32 crtc2_pitch; | |
212 | ||
213 | /* Flat panel regs */ | |
214 | u32 fp_crtc_h_total_disp; | |
215 | u32 fp_crtc_v_total_disp; | |
216 | u32 fp_gen_cntl; | |
217 | u32 fp2_gen_cntl; | |
218 | u32 fp_h_sync_strt_wid; | |
219 | u32 fp2_h_sync_strt_wid; | |
220 | u32 fp_horz_stretch; | |
221 | u32 fp_panel_cntl; | |
222 | u32 fp_v_sync_strt_wid; | |
223 | u32 fp2_v_sync_strt_wid; | |
224 | u32 fp_vert_stretch; | |
225 | u32 lvds_gen_cntl; | |
226 | u32 lvds_pll_cntl; | |
227 | u32 tmds_crc; | |
228 | u32 tmds_transmitter_cntl; | |
229 | ||
230 | /* Computed values for PLL */ | |
231 | u32 dot_clock_freq; | |
232 | int feedback_div; | |
233 | int post_div; | |
234 | ||
235 | /* PLL registers */ | |
236 | u32 ppll_div_3; | |
237 | u32 ppll_ref_div; | |
238 | u32 vclk_ecp_cntl; | |
239 | u32 clk_cntl_index; | |
240 | ||
241 | /* Computed values for PLL2 */ | |
242 | u32 dot_clock_freq_2; | |
243 | int feedback_div_2; | |
244 | int post_div_2; | |
245 | ||
246 | /* PLL2 registers */ | |
247 | u32 p2pll_ref_div; | |
248 | u32 p2pll_div_0; | |
249 | u32 htotal_cntl2; | |
250 | ||
251 | /* Palette */ | |
252 | int palette_valid; | |
253 | }; | |
254 | ||
255 | struct panel_info { | |
256 | int xres, yres; | |
257 | int valid; | |
258 | int clock; | |
259 | int hOver_plus, hSync_width, hblank; | |
260 | int vOver_plus, vSync_width, vblank; | |
261 | int hAct_high, vAct_high, interlaced; | |
262 | int pwr_delay; | |
263 | int use_bios_dividers; | |
264 | int ref_divider; | |
265 | int post_divider; | |
266 | int fbk_divider; | |
267 | }; | |
268 | ||
269 | struct radeonfb_info; | |
270 | ||
271 | #ifdef CONFIG_FB_RADEON_I2C | |
272 | struct radeon_i2c_chan { | |
273 | struct radeonfb_info *rinfo; | |
274 | u32 ddc_reg; | |
275 | struct i2c_adapter adapter; | |
276 | struct i2c_algo_bit_data algo; | |
277 | }; | |
278 | #endif | |
279 | ||
280 | enum radeon_pm_mode { | |
281 | radeon_pm_none = 0, /* Nothing supported */ | |
282 | radeon_pm_d2 = 0x00000001, /* Can do D2 state */ | |
283 | radeon_pm_off = 0x00000002, /* Can resume from D3 cold */ | |
284 | }; | |
285 | ||
994aad25 VB |
286 | typedef void (*reinit_function_ptr)(struct radeonfb_info *rinfo); |
287 | ||
1da177e4 LT |
288 | struct radeonfb_info { |
289 | struct fb_info *info; | |
290 | ||
291 | struct radeon_regs state; | |
292 | struct radeon_regs init_state; | |
293 | ||
ca52a498 | 294 | char name[50]; |
1da177e4 LT |
295 | |
296 | unsigned long mmio_base_phys; | |
297 | unsigned long fb_base_phys; | |
298 | ||
299 | void __iomem *mmio_base; | |
300 | void __iomem *fb_base; | |
301 | ||
302 | unsigned long fb_local_base; | |
303 | ||
304 | struct pci_dev *pdev; | |
758ddd1d | 305 | #if defined(CONFIG_PPC) || defined(CONFIG_SPARC) |
1da177e4 LT |
306 | struct device_node *of_node; |
307 | #endif | |
308 | ||
309 | void __iomem *bios_seg; | |
310 | int fp_bios_start; | |
311 | ||
f0e3ad44 | 312 | u32 pseudo_palette[16]; |
1da177e4 LT |
313 | struct { u8 red, green, blue, pad; } |
314 | palette[256]; | |
315 | ||
316 | int chipset; | |
317 | u8 family; | |
318 | u8 rev; | |
319 | unsigned int errata; | |
320 | unsigned long video_ram; | |
321 | unsigned long mapped_vram; | |
322 | int vram_width; | |
323 | int vram_ddr; | |
324 | ||
325 | int pitch, bpp, depth; | |
326 | ||
327 | int has_CRTC2; | |
328 | int is_mobility; | |
329 | int is_IGP; | |
330 | int reversed_DAC; | |
331 | int reversed_TMDS; | |
332 | struct panel_info panel_info; | |
333 | int mon1_type; | |
334 | u8 *mon1_EDID; | |
335 | struct fb_videomode *mon1_modedb; | |
336 | int mon1_dbsize; | |
337 | int mon2_type; | |
338 | u8 *mon2_EDID; | |
339 | ||
6c34bc29 | 340 | u32 dp_gui_master_cntl; |
1da177e4 LT |
341 | |
342 | struct pll_info pll; | |
343 | ||
5e200b53 | 344 | int wc_cookie; |
1da177e4 | 345 | |
1da177e4 LT |
346 | u32 save_regs[100]; |
347 | int asleep; | |
348 | int lock_blank; | |
349 | int dynclk; | |
350 | int no_schedule; | |
351 | enum radeon_pm_mode pm_mode; | |
994aad25 | 352 | reinit_function_ptr reinit_func; |
1da177e4 LT |
353 | |
354 | /* Lock on register access */ | |
355 | spinlock_t reg_lock; | |
356 | ||
357 | /* Timer used for delayed LVDS operations */ | |
358 | struct timer_list lvds_timer; | |
359 | u32 pending_lvds_gen_cntl; | |
360 | ||
361 | #ifdef CONFIG_FB_RADEON_I2C | |
362 | struct radeon_i2c_chan i2c[4]; | |
363 | #endif | |
1da177e4 LT |
364 | }; |
365 | ||
366 | ||
367 | #define PRIMARY_MONITOR(rinfo) (rinfo->mon1_type) | |
368 | ||
369 | ||
1da177e4 LT |
370 | /* |
371 | * IO macros | |
372 | */ | |
373 | ||
08bfb453 | 374 | void _radeon_msleep(struct radeonfb_info *rinfo, unsigned long ms); |
1da177e4 LT |
375 | |
376 | #define INREG8(addr) readb((rinfo->mmio_base)+addr) | |
377 | #define OUTREG8(addr,val) writeb(val, (rinfo->mmio_base)+addr) | |
017fb98e DM |
378 | #define INREG16(addr) readw((rinfo->mmio_base)+addr) |
379 | #define OUTREG16(addr,val) writew(val, (rinfo->mmio_base)+addr) | |
1da177e4 LT |
380 | #define INREG(addr) readl((rinfo->mmio_base)+addr) |
381 | #define OUTREG(addr,val) writel(val, (rinfo->mmio_base)+addr) | |
382 | ||
08bfb453 | 383 | void _OUTREGP(struct radeonfb_info *rinfo, u32 addr, u32 val, u32 mask); |
1da177e4 LT |
384 | |
385 | #define OUTREGP(addr,val,mask) _OUTREGP(rinfo, addr, val,mask) | |
386 | ||
387 | /* | |
388 | * Note about PLL register accesses: | |
389 | * | |
390 | * I have removed the spinlock on them on purpose. The driver now | |
391 | * expects that it will only manipulate the PLL registers in normal | |
392 | * task environment, where radeon_msleep() will be called, protected | |
393 | * by a semaphore (currently the console semaphore) so that no conflict | |
394 | * will happen on the PLL register index. | |
395 | * | |
396 | * With the latest changes to the VT layer, this is guaranteed for all | |
397 | * calls except the actual drawing/blits which aren't supposed to use | |
398 | * the PLL registers anyway | |
399 | * | |
400 | * This is very important for the workarounds to work properly. The only | |
401 | * possible exception to this rule is the call to unblank(), which may | |
402 | * be done at irq time if an oops is in progress. | |
403 | */ | |
08bfb453 | 404 | void radeon_pll_errata_after_index_slow(struct radeonfb_info *rinfo); |
1da177e4 LT |
405 | static inline void radeon_pll_errata_after_index(struct radeonfb_info *rinfo) |
406 | { | |
08bfb453 DV |
407 | if (rinfo->errata & CHIP_ERRATA_PLL_DUMMYREADS) |
408 | radeon_pll_errata_after_index_slow(rinfo); | |
1da177e4 LT |
409 | } |
410 | ||
08bfb453 | 411 | void radeon_pll_errata_after_data_slow(struct radeonfb_info *rinfo); |
1da177e4 LT |
412 | static inline void radeon_pll_errata_after_data(struct radeonfb_info *rinfo) |
413 | { | |
08bfb453 DV |
414 | if (rinfo->errata & (CHIP_ERRATA_PLL_DELAY|CHIP_ERRATA_R300_CG)) |
415 | radeon_pll_errata_after_data_slow(rinfo); | |
1da177e4 LT |
416 | } |
417 | ||
08bfb453 DV |
418 | u32 __INPLL(struct radeonfb_info *rinfo, u32 addr); |
419 | void __OUTPLL(struct radeonfb_info *rinfo, unsigned int index, u32 val); | |
420 | void __OUTPLLP(struct radeonfb_info *rinfo, unsigned int index, | |
421 | u32 val, u32 mask); | |
1da177e4 LT |
422 | |
423 | #define INPLL(addr) __INPLL(rinfo, addr) | |
424 | #define OUTPLL(index, val) __OUTPLL(rinfo, index, val) | |
425 | #define OUTPLLP(index, val, mask) __OUTPLLP(rinfo, index, val, mask) | |
426 | ||
427 | ||
428 | #define BIOS_IN8(v) (readb(rinfo->bios_seg + (v))) | |
429 | #define BIOS_IN16(v) (readb(rinfo->bios_seg + (v)) | \ | |
430 | (readb(rinfo->bios_seg + (v) + 1) << 8)) | |
431 | #define BIOS_IN32(v) (readb(rinfo->bios_seg + (v)) | \ | |
432 | (readb(rinfo->bios_seg + (v) + 1) << 8) | \ | |
433 | (readb(rinfo->bios_seg + (v) + 2) << 16) | \ | |
434 | (readb(rinfo->bios_seg + (v) + 3) << 24)) | |
435 | ||
436 | /* | |
437 | * Inline utilities | |
438 | */ | |
439 | static inline int round_div(int num, int den) | |
440 | { | |
441 | return (num + (den / 2)) / den; | |
442 | } | |
443 | ||
444 | static inline int var_to_depth(const struct fb_var_screeninfo *var) | |
445 | { | |
446 | if (var->bits_per_pixel != 16) | |
447 | return var->bits_per_pixel; | |
448 | return (var->green.length == 5) ? 15 : 16; | |
449 | } | |
450 | ||
451 | static inline u32 radeon_get_dstbpp(u16 depth) | |
452 | { | |
453 | switch (depth) { | |
454 | case 8: | |
455 | return DST_8BPP; | |
456 | case 15: | |
457 | return DST_15BPP; | |
458 | case 16: | |
459 | return DST_16BPP; | |
460 | case 32: | |
461 | return DST_32BPP; | |
462 | default: | |
463 | return 0; | |
464 | } | |
465 | } | |
466 | ||
467 | /* | |
468 | * 2D Engine helper routines | |
469 | */ | |
a6c0c37d | 470 | |
08bfb453 DV |
471 | void _radeon_fifo_wait(struct radeonfb_info *rinfo, int entries); |
472 | void radeon_engine_flush(struct radeonfb_info *rinfo); | |
473 | void _radeon_engine_idle(struct radeonfb_info *rinfo); | |
1da177e4 | 474 | |
6c34bc29 LT |
475 | #define radeon_engine_idle() _radeon_engine_idle(rinfo) |
476 | #define radeon_fifo_wait(entries) _radeon_fifo_wait(rinfo,entries) | |
1da177e4 LT |
477 | #define radeon_msleep(ms) _radeon_msleep(rinfo,ms) |
478 | ||
479 | ||
480 | /* I2C Functions */ | |
481 | extern void radeon_create_i2c_busses(struct radeonfb_info *rinfo); | |
482 | extern void radeon_delete_i2c_busses(struct radeonfb_info *rinfo); | |
483 | extern int radeon_probe_i2c_connector(struct radeonfb_info *rinfo, int conn, u8 **out_edid); | |
484 | ||
485 | /* PM Functions */ | |
486 | extern int radeonfb_pci_suspend(struct pci_dev *pdev, pm_message_t state); | |
487 | extern int radeonfb_pci_resume(struct pci_dev *pdev); | |
994aad25 | 488 | extern void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlist, int force_sleep); |
1da177e4 LT |
489 | extern void radeonfb_pm_exit(struct radeonfb_info *rinfo); |
490 | ||
491 | /* Monitor probe functions */ | |
492 | extern void radeon_probe_screens(struct radeonfb_info *rinfo, | |
493 | const char *monitor_layout, int ignore_edid); | |
494 | extern void radeon_check_modes(struct radeonfb_info *rinfo, const char *mode_option); | |
495 | extern int radeon_match_mode(struct radeonfb_info *rinfo, | |
496 | struct fb_var_screeninfo *dest, | |
497 | const struct fb_var_screeninfo *src); | |
498 | ||
499 | /* Accel functions */ | |
500 | extern void radeonfb_fillrect(struct fb_info *info, const struct fb_fillrect *region); | |
501 | extern void radeonfb_copyarea(struct fb_info *info, const struct fb_copyarea *area); | |
502 | extern void radeonfb_imageblit(struct fb_info *p, const struct fb_image *image); | |
503 | extern int radeonfb_sync(struct fb_info *info); | |
504 | extern void radeonfb_engine_init (struct radeonfb_info *rinfo); | |
505 | extern void radeonfb_engine_reset(struct radeonfb_info *rinfo); | |
506 | ||
507 | /* Other functions */ | |
508 | extern int radeon_screen_blank(struct radeonfb_info *rinfo, int blank, int mode_switch); | |
509 | extern void radeon_write_mode (struct radeonfb_info *rinfo, struct radeon_regs *mode, | |
510 | int reg_only); | |
511 | ||
5474c120 MH |
512 | /* Backlight functions */ |
513 | #ifdef CONFIG_FB_RADEON_BACKLIGHT | |
514 | extern void radeonfb_bl_init(struct radeonfb_info *rinfo); | |
515 | extern void radeonfb_bl_exit(struct radeonfb_info *rinfo); | |
516 | #else | |
517 | static inline void radeonfb_bl_init(struct radeonfb_info *rinfo) {} | |
518 | static inline void radeonfb_bl_exit(struct radeonfb_info *rinfo) {} | |
519 | #endif | |
520 | ||
1da177e4 | 521 | #endif /* __RADEONFB_H__ */ |