Commit | Line | Data |
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8a8e6b9d AS |
1 | /* Geode LX framebuffer driver |
2 | * | |
3 | * Copyright (C) 2006-2007, Advanced Micro Devices,Inc. | |
4 | * Copyright (c) 2008 Andres Salomon <dilinger@debian.org> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2 of the License, or (at your | |
9 | * option) any later version. | |
10 | */ | |
3968cb49 JC |
11 | #ifndef _LXFB_H_ |
12 | #define _LXFB_H_ | |
13 | ||
14 | #include <linux/fb.h> | |
15 | ||
f694e53b AS |
16 | #define GP_REG_COUNT (0x7c / 4) |
17 | #define DC_REG_COUNT (0xf0 / 4) | |
18 | #define VP_REG_COUNT (0x158 / 8) | |
19 | #define FP_REG_COUNT (0x60 / 8) | |
20 | ||
21 | #define DC_PAL_COUNT 0x104 | |
22 | #define DC_HFILT_COUNT 0x100 | |
23 | #define DC_VFILT_COUNT 0x100 | |
24 | #define VP_COEFF_SIZE 0x1000 | |
16cdd433 | 25 | #define VP_PAL_COUNT 0x100 |
f694e53b | 26 | |
3968cb49 JC |
27 | #define OUTPUT_CRT 0x01 |
28 | #define OUTPUT_PANEL 0x02 | |
29 | ||
30 | struct lxfb_par { | |
31 | int output; | |
3968cb49 JC |
32 | |
33 | void __iomem *gp_regs; | |
34 | void __iomem *dc_regs; | |
31f51fa8 | 35 | void __iomem *vp_regs; |
f694e53b AS |
36 | #ifdef CONFIG_PM |
37 | int powered_down; | |
38 | ||
39 | /* register state, for power mgmt functionality */ | |
40 | struct { | |
41 | uint64_t padsel; | |
42 | uint64_t dotpll; | |
43 | uint64_t dfglcfg; | |
44 | uint64_t dcspare; | |
45 | } msr; | |
46 | ||
47 | uint32_t gp[GP_REG_COUNT]; | |
48 | uint32_t dc[DC_REG_COUNT]; | |
49 | uint64_t vp[VP_REG_COUNT]; | |
50 | uint64_t fp[FP_REG_COUNT]; | |
51 | ||
16cdd433 DD |
52 | uint32_t dc_pal[DC_PAL_COUNT]; |
53 | uint32_t vp_pal[VP_PAL_COUNT]; | |
f694e53b AS |
54 | uint32_t hcoeff[DC_HFILT_COUNT * 2]; |
55 | uint32_t vcoeff[DC_VFILT_COUNT]; | |
56 | uint32_t vp_coeff[VP_COEFF_SIZE / 4]; | |
57 | #endif | |
3968cb49 JC |
58 | }; |
59 | ||
60 | static inline unsigned int lx_get_pitch(unsigned int xres, int bpp) | |
61 | { | |
62 | return (((xres * (bpp >> 3)) + 7) & ~7); | |
63 | } | |
64 | ||
65 | void lx_set_mode(struct fb_info *); | |
3968cb49 JC |
66 | unsigned int lx_framebuffer_size(void); |
67 | int lx_blank_display(struct fb_info *, int); | |
68 | void lx_set_palette_reg(struct fb_info *, unsigned int, unsigned int, | |
69 | unsigned int, unsigned int); | |
70 | ||
f694e53b AS |
71 | #ifdef CONFIG_PM |
72 | int lx_powerdown(struct fb_info *info); | |
73 | int lx_powerup(struct fb_info *info); | |
74 | #endif | |
75 | ||
3968cb49 | 76 | |
f5c90e85 AS |
77 | /* Graphics Processor registers (table 6-29 from the data book) */ |
78 | enum gp_registers { | |
79 | GP_DST_OFFSET = 0, | |
80 | GP_SRC_OFFSET, | |
81 | GP_STRIDE, | |
82 | GP_WID_HEIGHT, | |
83 | ||
84 | GP_SRC_COLOR_FG, | |
85 | GP_SRC_COLOR_BG, | |
86 | GP_PAT_COLOR_0, | |
87 | GP_PAT_COLOR_1, | |
88 | ||
89 | GP_PAT_COLOR_2, | |
90 | GP_PAT_COLOR_3, | |
91 | GP_PAT_COLOR_4, | |
92 | GP_PAT_COLOR_5, | |
93 | ||
94 | GP_PAT_DATA_0, | |
95 | GP_PAT_DATA_1, | |
96 | GP_RASTER_MODE, | |
97 | GP_VECTOR_MODE, | |
98 | ||
99 | GP_BLT_MODE, | |
100 | GP_BLT_STATUS, | |
101 | GP_HST_SRC, | |
102 | GP_BASE_OFFSET, | |
103 | ||
104 | GP_CMD_TOP, | |
105 | GP_CMD_BOT, | |
106 | GP_CMD_READ, | |
107 | GP_CMD_WRITE, | |
108 | ||
109 | GP_CH3_OFFSET, | |
110 | GP_CH3_MODE_STR, | |
111 | GP_CH3_WIDHI, | |
112 | GP_CH3_HSRC, | |
113 | ||
114 | GP_LUT_INDEX, | |
115 | GP_LUT_DATA, | |
116 | GP_INT_CNTRL, /* 0x78 */ | |
117 | }; | |
118 | ||
119 | #define GP_BLT_STATUS_CE (1 << 4) /* cmd buf empty */ | |
120 | #define GP_BLT_STATUS_PB (1 << 0) /* primative busy */ | |
121 | ||
122 | ||
123 | /* Display Controller registers (table 6-47 from the data book) */ | |
124 | enum dc_registers { | |
125 | DC_UNLOCK = 0, | |
126 | DC_GENERAL_CFG, | |
127 | DC_DISPLAY_CFG, | |
128 | DC_ARB_CFG, | |
129 | ||
130 | DC_FB_ST_OFFSET, | |
131 | DC_CB_ST_OFFSET, | |
132 | DC_CURS_ST_OFFSET, | |
133 | DC_RSVD_0, | |
134 | ||
135 | DC_VID_Y_ST_OFFSET, | |
136 | DC_VID_U_ST_OFFSET, | |
137 | DC_VID_V_ST_OFFSET, | |
138 | DC_DV_TOP, | |
139 | ||
140 | DC_LINE_SIZE, | |
141 | DC_GFX_PITCH, | |
142 | DC_VID_YUV_PITCH, | |
143 | DC_RSVD_1, | |
144 | ||
145 | DC_H_ACTIVE_TIMING, | |
146 | DC_H_BLANK_TIMING, | |
147 | DC_H_SYNC_TIMING, | |
148 | DC_RSVD_2, | |
149 | ||
150 | DC_V_ACTIVE_TIMING, | |
151 | DC_V_BLANK_TIMING, | |
152 | DC_V_SYNC_TIMING, | |
153 | DC_FB_ACTIVE, | |
154 | ||
155 | DC_CURSOR_X, | |
156 | DC_CURSOR_Y, | |
157 | DC_RSVD_3, | |
158 | DC_LINE_CNT, | |
159 | ||
160 | DC_PAL_ADDRESS, | |
161 | DC_PAL_DATA, | |
162 | DC_DFIFO_DIAG, | |
163 | DC_CFIFO_DIAG, | |
164 | ||
165 | DC_VID_DS_DELTA, | |
166 | DC_GLIU0_MEM_OFFSET, | |
167 | DC_DV_CTL, | |
168 | DC_DV_ACCESS, | |
169 | ||
170 | DC_GFX_SCALE, | |
171 | DC_IRQ_FILT_CTL, | |
172 | DC_FILT_COEFF1, | |
173 | DC_FILT_COEFF2, | |
174 | ||
175 | DC_VBI_EVEN_CTL, | |
176 | DC_VBI_ODD_CTL, | |
177 | DC_VBI_HOR, | |
178 | DC_VBI_LN_ODD, | |
179 | ||
180 | DC_VBI_LN_EVEN, | |
181 | DC_VBI_PITCH, | |
182 | DC_CLR_KEY, | |
183 | DC_CLR_KEY_MASK, | |
184 | ||
185 | DC_CLR_KEY_X, | |
186 | DC_CLR_KEY_Y, | |
187 | DC_IRQ, | |
188 | DC_RSVD_4, | |
189 | ||
190 | DC_RSVD_5, | |
191 | DC_GENLK_CTL, | |
192 | DC_VID_EVEN_Y_ST_OFFSET, | |
193 | DC_VID_EVEN_U_ST_OFFSET, | |
194 | ||
195 | DC_VID_EVEN_V_ST_OFFSET, | |
196 | DC_V_ACTIVE_EVEN_TIMING, | |
197 | DC_V_BLANK_EVEN_TIMING, | |
198 | DC_V_SYNC_EVEN_TIMING, /* 0xec */ | |
199 | }; | |
200 | ||
201 | #define DC_UNLOCK_LOCK 0x00000000 | |
202 | #define DC_UNLOCK_UNLOCK 0x00004758 /* magic value */ | |
203 | ||
204 | #define DC_GENERAL_CFG_FDTY (1 << 17) | |
205 | #define DC_GENERAL_CFG_DFHPEL_SHIFT (12) | |
206 | #define DC_GENERAL_CFG_DFHPSL_SHIFT (8) | |
207 | #define DC_GENERAL_CFG_VGAE (1 << 7) | |
208 | #define DC_GENERAL_CFG_DECE (1 << 6) | |
209 | #define DC_GENERAL_CFG_CMPE (1 << 5) | |
210 | #define DC_GENERAL_CFG_VIDE (1 << 3) | |
211 | #define DC_GENERAL_CFG_DFLE (1 << 0) | |
3968cb49 | 212 | |
f5c90e85 AS |
213 | #define DC_DISPLAY_CFG_VISL (1 << 27) |
214 | #define DC_DISPLAY_CFG_PALB (1 << 25) | |
215 | #define DC_DISPLAY_CFG_DCEN (1 << 24) | |
216 | #define DC_DISPLAY_CFG_DISP_MODE_24BPP (1 << 9) | |
217 | #define DC_DISPLAY_CFG_DISP_MODE_16BPP (1 << 8) | |
218 | #define DC_DISPLAY_CFG_DISP_MODE_8BPP (0) | |
219 | #define DC_DISPLAY_CFG_TRUP (1 << 6) | |
220 | #define DC_DISPLAY_CFG_VDEN (1 << 4) | |
221 | #define DC_DISPLAY_CFG_GDEN (1 << 3) | |
222 | #define DC_DISPLAY_CFG_TGEN (1 << 0) | |
3968cb49 | 223 | |
f5c90e85 | 224 | #define DC_DV_TOP_DV_TOP_EN (1 << 0) |
3968cb49 | 225 | |
f5c90e85 AS |
226 | #define DC_DV_CTL_DV_LINE_SIZE ((1 << 10) | (1 << 11)) |
227 | #define DC_DV_CTL_DV_LINE_SIZE_1K (0) | |
228 | #define DC_DV_CTL_DV_LINE_SIZE_2K (1 << 10) | |
229 | #define DC_DV_CTL_DV_LINE_SIZE_4K (1 << 11) | |
230 | #define DC_DV_CTL_DV_LINE_SIZE_8K ((1 << 10) | (1 << 11)) | |
f694e53b AS |
231 | #define DC_DV_CTL_CLEAR_DV_RAM (1 << 0) |
232 | ||
233 | #define DC_IRQ_FILT_CTL_H_FILT_SEL (1 << 10) | |
3968cb49 | 234 | |
f5c90e85 | 235 | #define DC_CLR_KEY_CLR_KEY_EN (1 << 24) |
3968cb49 | 236 | |
f5c90e85 AS |
237 | #define DC_IRQ_VIP_VSYNC_IRQ_STATUS (1 << 21) /* undocumented? */ |
238 | #define DC_IRQ_STATUS (1 << 20) /* undocumented? */ | |
239 | #define DC_IRQ_VIP_VSYNC_LOSS_IRQ_MASK (1 << 1) | |
240 | #define DC_IRQ_MASK (1 << 0) | |
3968cb49 | 241 | |
f5c90e85 AS |
242 | #define DC_GENLK_CTL_FLICK_SEL_MASK (0x0F << 28) |
243 | #define DC_GENLK_CTL_ALPHA_FLICK_EN (1 << 25) | |
244 | #define DC_GENLK_CTL_FLICK_EN (1 << 24) | |
245 | #define DC_GENLK_CTL_GENLK_EN (1 << 18) | |
3968cb49 | 246 | |
3968cb49 | 247 | |
f5c90e85 AS |
248 | /* |
249 | * Video Processor registers (table 6-71). | |
250 | * There is space for 64 bit values, but we never use more than the | |
251 | * lower 32 bits. The actual register save/restore code only bothers | |
252 | * to restore those 32 bits. | |
253 | */ | |
254 | enum vp_registers { | |
255 | VP_VCFG = 0, | |
256 | VP_DCFG, | |
3968cb49 | 257 | |
f5c90e85 AS |
258 | VP_VX, |
259 | VP_VY, | |
3968cb49 | 260 | |
f5c90e85 AS |
261 | VP_SCL, |
262 | VP_VCK, | |
3968cb49 | 263 | |
f5c90e85 AS |
264 | VP_VCM, |
265 | VP_PAR, | |
3968cb49 | 266 | |
f5c90e85 AS |
267 | VP_PDR, |
268 | VP_SLR, | |
3968cb49 | 269 | |
f5c90e85 AS |
270 | VP_MISC, |
271 | VP_CCS, | |
3968cb49 | 272 | |
f5c90e85 AS |
273 | VP_VYS, |
274 | VP_VXS, | |
3968cb49 | 275 | |
f5c90e85 AS |
276 | VP_RSVD_0, |
277 | VP_VDC, | |
3968cb49 | 278 | |
f5c90e85 AS |
279 | VP_RSVD_1, |
280 | VP_CRC, | |
3968cb49 | 281 | |
f5c90e85 AS |
282 | VP_CRC32, |
283 | VP_VDE, | |
3968cb49 | 284 | |
f5c90e85 AS |
285 | VP_CCK, |
286 | VP_CCM, | |
3968cb49 | 287 | |
f5c90e85 AS |
288 | VP_CC1, |
289 | VP_CC2, | |
3968cb49 | 290 | |
f5c90e85 AS |
291 | VP_A1X, |
292 | VP_A1Y, | |
3968cb49 | 293 | |
f5c90e85 AS |
294 | VP_A1C, |
295 | VP_A1T, | |
3968cb49 | 296 | |
f5c90e85 AS |
297 | VP_A2X, |
298 | VP_A2Y, | |
3968cb49 | 299 | |
f5c90e85 AS |
300 | VP_A2C, |
301 | VP_A2T, | |
3968cb49 | 302 | |
f5c90e85 AS |
303 | VP_A3X, |
304 | VP_A3Y, | |
3968cb49 | 305 | |
f5c90e85 AS |
306 | VP_A3C, |
307 | VP_A3T, | |
308 | ||
309 | VP_VRR, | |
310 | VP_AWT, | |
311 | ||
312 | VP_VTM, | |
313 | VP_VYE, | |
314 | ||
315 | VP_A1YE, | |
316 | VP_A2YE, | |
317 | ||
318 | VP_A3YE, /* 0x150 */ | |
f694e53b AS |
319 | |
320 | VP_VCR = 0x1000, /* 0x1000 - 0x1fff */ | |
f5c90e85 | 321 | }; |
3968cb49 | 322 | |
f5c90e85 | 323 | #define VP_VCFG_VID_EN (1 << 0) |
3968cb49 | 324 | |
f5c90e85 AS |
325 | #define VP_DCFG_GV_GAM (1 << 21) |
326 | #define VP_DCFG_PWR_SEQ_DELAY ((1 << 17) | (1 << 18) | (1 << 19)) | |
327 | #define VP_DCFG_PWR_SEQ_DELAY_DEFAULT (1 << 19) /* undocumented */ | |
328 | #define VP_DCFG_CRT_SYNC_SKW ((1 << 14) | (1 << 15) | (1 << 16)) | |
329 | #define VP_DCFG_CRT_SYNC_SKW_DEFAULT (1 << 16) | |
330 | #define VP_DCFG_CRT_VSYNC_POL (1 << 9) | |
331 | #define VP_DCFG_CRT_HSYNC_POL (1 << 8) | |
332 | #define VP_DCFG_DAC_BL_EN (1 << 3) | |
333 | #define VP_DCFG_VSYNC_EN (1 << 2) | |
334 | #define VP_DCFG_HSYNC_EN (1 << 1) | |
335 | #define VP_DCFG_CRT_EN (1 << 0) | |
3968cb49 | 336 | |
f5c90e85 AS |
337 | #define VP_MISC_APWRDN (1 << 11) |
338 | #define VP_MISC_DACPWRDN (1 << 10) | |
339 | #define VP_MISC_BYP_BOTH (1 << 0) | |
3968cb49 | 340 | |
3968cb49 | 341 | |
f5c90e85 AS |
342 | /* |
343 | * Flat Panel registers (table 6-71). | |
344 | * Also 64 bit registers; see above note about 32-bit handling. | |
345 | */ | |
346 | ||
347 | /* we're actually in the VP register space, starting at address 0x400 */ | |
348 | #define VP_FP_START 0x400 | |
349 | ||
350 | enum fp_registers { | |
351 | FP_PT1 = 0, | |
352 | FP_PT2, | |
353 | ||
354 | FP_PM, | |
355 | FP_DFC, | |
356 | ||
357 | FP_RSVD_0, | |
358 | FP_RSVD_1, | |
359 | ||
360 | FP_RSVD_2, | |
361 | FP_RSVD_3, | |
362 | ||
363 | FP_RSVD_4, | |
364 | FP_DCA, | |
365 | ||
366 | FP_DMD, | |
367 | FP_CRC, /* 0x458 */ | |
368 | }; | |
369 | ||
b5c26f97 MG |
370 | #define FP_PT2_HSP (1 << 22) |
371 | #define FP_PT2_VSP (1 << 23) | |
f5c90e85 | 372 | #define FP_PT2_SCRC (1 << 27) /* shfclk free */ |
3968cb49 | 373 | |
f5c90e85 | 374 | #define FP_PM_P (1 << 24) /* panel power ctl */ |
f694e53b AS |
375 | #define FP_PM_PANEL_PWR_UP (1 << 3) /* r/o */ |
376 | #define FP_PM_PANEL_PWR_DOWN (1 << 2) /* r/o */ | |
377 | #define FP_PM_PANEL_OFF (1 << 1) /* r/o */ | |
378 | #define FP_PM_PANEL_ON (1 << 0) /* r/o */ | |
3968cb49 | 379 | |
f5c90e85 | 380 | #define FP_DFC_BC ((1 << 4) | (1 << 5) | (1 << 6)) |
3968cb49 | 381 | |
9286361b AS |
382 | |
383 | /* register access functions */ | |
384 | ||
385 | static inline uint32_t read_gp(struct lxfb_par *par, int reg) | |
386 | { | |
f5c90e85 | 387 | return readl(par->gp_regs + 4*reg); |
9286361b AS |
388 | } |
389 | ||
390 | static inline void write_gp(struct lxfb_par *par, int reg, uint32_t val) | |
391 | { | |
f5c90e85 | 392 | writel(val, par->gp_regs + 4*reg); |
9286361b AS |
393 | } |
394 | ||
395 | static inline uint32_t read_dc(struct lxfb_par *par, int reg) | |
396 | { | |
f5c90e85 | 397 | return readl(par->dc_regs + 4*reg); |
9286361b AS |
398 | } |
399 | ||
400 | static inline void write_dc(struct lxfb_par *par, int reg, uint32_t val) | |
401 | { | |
f5c90e85 | 402 | writel(val, par->dc_regs + 4*reg); |
9286361b AS |
403 | } |
404 | ||
405 | static inline uint32_t read_vp(struct lxfb_par *par, int reg) | |
406 | { | |
31f51fa8 | 407 | return readl(par->vp_regs + 8*reg); |
9286361b AS |
408 | } |
409 | ||
410 | static inline void write_vp(struct lxfb_par *par, int reg, uint32_t val) | |
411 | { | |
31f51fa8 | 412 | writel(val, par->vp_regs + 8*reg); |
9286361b AS |
413 | } |
414 | ||
415 | static inline uint32_t read_fp(struct lxfb_par *par, int reg) | |
416 | { | |
31f51fa8 | 417 | return readl(par->vp_regs + 8*reg + VP_FP_START); |
9286361b AS |
418 | } |
419 | ||
420 | static inline void write_fp(struct lxfb_par *par, int reg, uint32_t val) | |
421 | { | |
31f51fa8 | 422 | writel(val, par->vp_regs + 8*reg + VP_FP_START); |
9286361b AS |
423 | } |
424 | ||
aec40532 | 425 | |
f3a57a60 | 426 | /* MSRs are defined in linux/cs5535.h; their bitfields are here */ |
aec40532 AS |
427 | |
428 | #define MSR_GLCP_DOTPLL_LOCK (1 << 25) /* r/o */ | |
429 | #define MSR_GLCP_DOTPLL_HALFPIX (1 << 24) | |
430 | #define MSR_GLCP_DOTPLL_BYPASS (1 << 15) | |
431 | #define MSR_GLCP_DOTPLL_DOTRESET (1 << 0) | |
432 | ||
433 | /* note: this is actually the VP's GLD_MSR_CONFIG */ | |
434 | #define MSR_LX_GLD_MSR_CONFIG_FMT ((1 << 3) | (1 << 4) | (1 << 5)) | |
435 | #define MSR_LX_GLD_MSR_CONFIG_FMT_FP (1 << 3) | |
436 | #define MSR_LX_GLD_MSR_CONFIG_FMT_CRT (0) | |
437 | #define MSR_LX_GLD_MSR_CONFIG_FPC (1 << 15) /* FP *and* CRT */ | |
438 | ||
439 | #define MSR_LX_MSR_PADSEL_TFT_SEL_LOW 0xDFFFFFFF /* ??? */ | |
440 | #define MSR_LX_MSR_PADSEL_TFT_SEL_HIGH 0x0000003F /* ??? */ | |
441 | ||
442 | #define MSR_LX_SPARE_MSR_DIS_CFIFO_HGO (1 << 11) /* undocumented */ | |
443 | #define MSR_LX_SPARE_MSR_VFIFO_ARB_SEL (1 << 10) /* undocumented */ | |
444 | #define MSR_LX_SPARE_MSR_WM_LPEN_OVRD (1 << 9) /* undocumented */ | |
445 | #define MSR_LX_SPARE_MSR_LOAD_WM_LPEN_M (1 << 8) /* undocumented */ | |
446 | #define MSR_LX_SPARE_MSR_DIS_INIT_V_PRI (1 << 7) /* undocumented */ | |
447 | #define MSR_LX_SPARE_MSR_DIS_VIFO_WM (1 << 6) | |
448 | #define MSR_LX_SPARE_MSR_DIS_CWD_CHECK (1 << 5) /* undocumented */ | |
449 | #define MSR_LX_SPARE_MSR_PIX8_PAN_FIX (1 << 4) /* undocumented */ | |
450 | #define MSR_LX_SPARE_MSR_FIRST_REQ_MASK (1 << 1) /* undocumented */ | |
451 | ||
3968cb49 | 452 | #endif |