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