summaryrefslogtreecommitdiff
path: root/drivers/video/geode/lxfb.h
blob: e4c4d89b786034c33aaf687b9616feddd3c76bbd (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
/* Geode LX framebuffer driver
 *
 * Copyright (C) 2006-2007, Advanced Micro Devices,Inc.
 * Copyright (c) 2008  Andres Salomon <dilinger@debian.org>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.
 */
#ifndef _LXFB_H_
#define _LXFB_H_

#include <linux/fb.h>

#define GP_REG_COUNT	(0x7c / 4)
#define DC_REG_COUNT	(0xf0 / 4)
#define VP_REG_COUNT	(0x158 / 8)
#define FP_REG_COUNT	(0x60 / 8)

#define DC_PAL_COUNT	0x104
#define DC_HFILT_COUNT	0x100
#define DC_VFILT_COUNT	0x100
#define VP_COEFF_SIZE	0x1000

#define OUTPUT_CRT   0x01
#define OUTPUT_PANEL 0x02

struct lxfb_par {
	int output;

	void __iomem *gp_regs;
	void __iomem *dc_regs;
	void __iomem *vp_regs;
#ifdef CONFIG_PM
	int powered_down;

	/* register state, for power mgmt functionality */
	struct {
		uint64_t padsel;
		uint64_t dotpll;
		uint64_t dfglcfg;
		uint64_t dcspare;
	} msr;

	uint32_t gp[GP_REG_COUNT];
	uint32_t dc[DC_REG_COUNT];
	uint64_t vp[VP_REG_COUNT];
	uint64_t fp[FP_REG_COUNT];

	uint32_t pal[DC_PAL_COUNT];
	uint32_t hcoeff[DC_HFILT_COUNT * 2];
	uint32_t vcoeff[DC_VFILT_COUNT];
	uint32_t vp_coeff[VP_COEFF_SIZE / 4];
#endif
};

static inline unsigned int lx_get_pitch(unsigned int xres, int bpp)
{
	return (((xres * (bpp >> 3)) + 7) & ~7);
}

void lx_set_mode(struct fb_info *);
unsigned int lx_framebuffer_size(void);
int lx_blank_display(struct fb_info *, int);
void lx_set_palette_reg(struct fb_info *, unsigned int, unsigned int,
			unsigned int, unsigned int);

#ifdef CONFIG_PM
int lx_powerdown(struct fb_info *info);
int lx_powerup(struct fb_info *info);
#endif


/* Graphics Processor registers (table 6-29 from the data book) */
enum gp_registers {
	GP_DST_OFFSET = 0,
	GP_SRC_OFFSET,
	GP_STRIDE,
	GP_WID_HEIGHT,

	GP_SRC_COLOR_FG,
	GP_SRC_COLOR_BG,
	GP_PAT_COLOR_0,
	GP_PAT_COLOR_1,

	GP_PAT_COLOR_2,
	GP_PAT_COLOR_3,
	GP_PAT_COLOR_4,
	GP_PAT_COLOR_5,

	GP_PAT_DATA_0,
	GP_PAT_DATA_1,
	GP_RASTER_MODE,
	GP_VECTOR_MODE,

	GP_BLT_MODE,
	GP_BLT_STATUS,
	GP_HST_SRC,
	GP_BASE_OFFSET,

	GP_CMD_TOP,
	GP_CMD_BOT,
	GP_CMD_READ,
	GP_CMD_WRITE,

	GP_CH3_OFFSET,
	GP_CH3_MODE_STR,
	GP_CH3_WIDHI,
	GP_CH3_HSRC,

	GP_LUT_INDEX,
	GP_LUT_DATA,
	GP_INT_CNTRL, /* 0x78 */
};

#define GP_BLT_STATUS_CE		(1 << 4)	/* cmd buf empty */
#define GP_BLT_STATUS_PB		(1 << 0)	/* primative busy */


/* Display Controller registers (table 6-47 from the data book) */
enum dc_registers {
	DC_UNLOCK = 0,
	DC_GENERAL_CFG,
	DC_DISPLAY_CFG,
	DC_ARB_CFG,

	DC_FB_ST_OFFSET,
	DC_CB_ST_OFFSET,
	DC_CURS_ST_OFFSET,
	DC_RSVD_0,

	DC_VID_Y_ST_OFFSET,
	DC_VID_U_ST_OFFSET,
	DC_VID_V_ST_OFFSET,
	DC_DV_TOP,

	DC_LINE_SIZE,
	DC_GFX_PITCH,
	DC_VID_YUV_PITCH,
	DC_RSVD_1,

	DC_H_ACTIVE_TIMING,
	DC_H_BLANK_TIMING,
	DC_H_SYNC_TIMING,
	DC_RSVD_2,

	DC_V_ACTIVE_TIMING,
	DC_V_BLANK_TIMING,
	DC_V_SYNC_TIMING,
	DC_FB_ACTIVE,

	DC_CURSOR_X,
	DC_CURSOR_Y,
	DC_RSVD_3,
	DC_LINE_CNT,

	DC_PAL_ADDRESS,
	DC_PAL_DATA,
	DC_DFIFO_DIAG,
	DC_CFIFO_DIAG,

	DC_VID_DS_DELTA,
	DC_GLIU0_MEM_OFFSET,
	DC_DV_CTL,
	DC_DV_ACCESS,

	DC_GFX_SCALE,
	DC_IRQ_FILT_CTL,
	DC_FILT_COEFF1,
	DC_FILT_COEFF2,

	DC_VBI_EVEN_CTL,
	DC_VBI_ODD_CTL,
	DC_VBI_HOR,
	DC_VBI_LN_ODD,

	DC_VBI_LN_EVEN,
	DC_VBI_PITCH,
	DC_CLR_KEY,
	DC_CLR_KEY_MASK,

	DC_CLR_KEY_X,
	DC_CLR_KEY_Y,
	DC_IRQ,
	DC_RSVD_4,

	DC_RSVD_5,
	DC_GENLK_CTL,
	DC_VID_EVEN_Y_ST_OFFSET,
	DC_VID_EVEN_U_ST_OFFSET,

	DC_VID_EVEN_V_ST_OFFSET,
	DC_V_ACTIVE_EVEN_TIMING,
	DC_V_BLANK_EVEN_TIMING,
	DC_V_SYNC_EVEN_TIMING,	/* 0xec */
};

#define DC_UNLOCK_LOCK			0x00000000
#define DC_UNLOCK_UNLOCK		0x00004758	/* magic value */

#define DC_GENERAL_CFG_FDTY		(1 << 17)
#define DC_GENERAL_CFG_DFHPEL_SHIFT	(12)
#define DC_GENERAL_CFG_DFHPSL_SHIFT	(8)
#define DC_GENERAL_CFG_VGAE		(1 << 7)
#define DC_GENERAL_CFG_DECE		(1 << 6)
#define DC_GENERAL_CFG_CMPE		(1 << 5)
#define DC_GENERAL_CFG_VIDE		(1 << 3)
#define DC_GENERAL_CFG_DFLE		(1 << 0)

#define DC_DISPLAY_CFG_VISL		(1 << 27)
#define DC_DISPLAY_CFG_PALB		(1 << 25)
#define DC_DISPLAY_CFG_DCEN		(1 << 24)
#define DC_DISPLAY_CFG_DISP_MODE_24BPP	(1 << 9)
#define DC_DISPLAY_CFG_DISP_MODE_16BPP	(1 << 8)
#define DC_DISPLAY_CFG_DISP_MODE_8BPP	(0)
#define DC_DISPLAY_CFG_TRUP		(1 << 6)
#define DC_DISPLAY_CFG_VDEN		(1 << 4)
#define DC_DISPLAY_CFG_GDEN		(1 << 3)
#define DC_DISPLAY_CFG_TGEN		(1 << 0)

#define DC_DV_TOP_DV_TOP_EN		(1 << 0)

#define DC_DV_CTL_DV_LINE_SIZE		((1 << 10) | (1 << 11))
#define DC_DV_CTL_DV_LINE_SIZE_1K	(0)
#define DC_DV_CTL_DV_LINE_SIZE_2K	(1 << 10)
#define DC_DV_CTL_DV_LINE_SIZE_4K	(1 << 11)
#define DC_DV_CTL_DV_LINE_SIZE_8K	((1 << 10) | (1 << 11))
#define DC_DV_CTL_CLEAR_DV_RAM		(1 << 0)

#define DC_IRQ_FILT_CTL_H_FILT_SEL	(1 << 10)

#define DC_CLR_KEY_CLR_KEY_EN		(1 << 24)

#define DC_IRQ_VIP_VSYNC_IRQ_STATUS	(1 << 21)	/* undocumented? */
#define DC_IRQ_STATUS			(1 << 20)	/* undocumented? */
#define DC_IRQ_VIP_VSYNC_LOSS_IRQ_MASK	(1 << 1)
#define DC_IRQ_MASK			(1 << 0)

#define DC_GENLK_CTL_FLICK_SEL_MASK	(0x0F << 28)
#define DC_GENLK_CTL_ALPHA_FLICK_EN	(1 << 25)
#define DC_GENLK_CTL_FLICK_EN		(1 << 24)
#define DC_GENLK_CTL_GENLK_EN		(1 << 18)


/*
 * Video Processor registers (table 6-71).
 * There is space for 64 bit values, but we never use more than the
 * lower 32 bits.  The actual register save/restore code only bothers
 * to restore those 32 bits.
 */
enum vp_registers {
	VP_VCFG = 0,
	VP_DCFG,

	VP_VX,
	VP_VY,

	VP_SCL,
	VP_VCK,

	VP_VCM,
	VP_PAR,

	VP_PDR,
	VP_SLR,

	VP_MISC,
	VP_CCS,

	VP_VYS,
	VP_VXS,

	VP_RSVD_0,
	VP_VDC,

	VP_RSVD_1,
	VP_CRC,

	VP_CRC32,
	VP_VDE,

	VP_CCK,
	VP_CCM,

	VP_CC1,
	VP_CC2,

	VP_A1X,
	VP_A1Y,

	VP_A1C,
	VP_A1T,

	VP_A2X,
	VP_A2Y,

	VP_A2C,
	VP_A2T,

	VP_A3X,
	VP_A3Y,

	VP_A3C,
	VP_A3T,

	VP_VRR,
	VP_AWT,

	VP_VTM,
	VP_VYE,

	VP_A1YE,
	VP_A2YE,

	VP_A3YE,	/* 0x150 */

	VP_VCR = 0x1000, /* 0x1000 - 0x1fff */
};

#define VP_VCFG_VID_EN			(1 << 0)

#define VP_DCFG_GV_GAM			(1 << 21)
#define VP_DCFG_PWR_SEQ_DELAY		((1 << 17) | (1 << 18) | (1 << 19))
#define VP_DCFG_PWR_SEQ_DELAY_DEFAULT	(1 << 19)	/* undocumented */
#define VP_DCFG_CRT_SYNC_SKW		((1 << 14) | (1 << 15) | (1 << 16))
#define VP_DCFG_CRT_SYNC_SKW_DEFAULT	(1 << 16)
#define VP_DCFG_CRT_VSYNC_POL		(1 << 9)
#define VP_DCFG_CRT_HSYNC_POL		(1 << 8)
#define VP_DCFG_DAC_BL_EN		(1 << 3)
#define VP_DCFG_VSYNC_EN		(1 << 2)
#define VP_DCFG_HSYNC_EN		(1 << 1)
#define VP_DCFG_CRT_EN			(1 << 0)

#define VP_MISC_APWRDN			(1 << 11)
#define VP_MISC_DACPWRDN		(1 << 10)
#define VP_MISC_BYP_BOTH		(1 << 0)


/*
 * Flat Panel registers (table 6-71).
 * Also 64 bit registers; see above note about 32-bit handling.
 */

/* we're actually in the VP register space, starting at address 0x400 */
#define VP_FP_START	0x400

enum fp_registers {
	FP_PT1 = 0,
	FP_PT2,

	FP_PM,
	FP_DFC,

	FP_RSVD_0,
	FP_RSVD_1,

	FP_RSVD_2,
	FP_RSVD_3,

	FP_RSVD_4,
	FP_DCA,

	FP_DMD,
	FP_CRC, /* 0x458 */
};

#define FP_PT2_HSP			(1 << 22)
#define FP_PT2_VSP			(1 << 23)
#define FP_PT2_SCRC			(1 << 27)	/* shfclk free */

#define FP_PM_P				(1 << 24)	/* panel power ctl */
#define FP_PM_PANEL_PWR_UP		(1 << 3)	/* r/o */
#define FP_PM_PANEL_PWR_DOWN		(1 << 2)	/* r/o */
#define FP_PM_PANEL_OFF			(1 << 1)	/* r/o */
#define FP_PM_PANEL_ON			(1 << 0)	/* r/o */

#define FP_DFC_BC			((1 << 4) | (1 << 5) | (1 << 6))


/* register access functions */

static inline uint32_t read_gp(struct lxfb_par *par, int reg)
{
	return readl(par->gp_regs + 4*reg);
}

static inline void write_gp(struct lxfb_par *par, int reg, uint32_t val)
{
	writel(val, par->gp_regs + 4*reg);
}

static inline uint32_t read_dc(struct lxfb_par *par, int reg)
{
	return readl(par->dc_regs + 4*reg);
}

static inline void write_dc(struct lxfb_par *par, int reg, uint32_t val)
{
	writel(val, par->dc_regs + 4*reg);
}

static inline uint32_t read_vp(struct lxfb_par *par, int reg)
{
	return readl(par->vp_regs + 8*reg);
}

static inline void write_vp(struct lxfb_par *par, int reg, uint32_t val)
{
	writel(val, par->vp_regs + 8*reg);
}

static inline uint32_t read_fp(struct lxfb_par *par, int reg)
{
	return readl(par->vp_regs + 8*reg + VP_FP_START);
}

static inline void write_fp(struct lxfb_par *par, int reg, uint32_t val)
{
	writel(val, par->vp_regs + 8*reg + VP_FP_START);
}


/* MSRs are defined in linux/cs5535.h; their bitfields are here */

#define MSR_GLCP_DOTPLL_LOCK		(1 << 25)	/* r/o */
#define MSR_GLCP_DOTPLL_HALFPIX		(1 << 24)
#define MSR_GLCP_DOTPLL_BYPASS		(1 << 15)
#define MSR_GLCP_DOTPLL_DOTRESET	(1 << 0)

/* note: this is actually the VP's GLD_MSR_CONFIG */
#define MSR_LX_GLD_MSR_CONFIG_FMT	((1 << 3) | (1 << 4) | (1 << 5))
#define MSR_LX_GLD_MSR_CONFIG_FMT_FP	(1 << 3)
#define MSR_LX_GLD_MSR_CONFIG_FMT_CRT	(0)
#define MSR_LX_GLD_MSR_CONFIG_FPC	(1 << 15)	/* FP *and* CRT */

#define MSR_LX_MSR_PADSEL_TFT_SEL_LOW	0xDFFFFFFF	/* ??? */
#define MSR_LX_MSR_PADSEL_TFT_SEL_HIGH	0x0000003F	/* ??? */

#define MSR_LX_SPARE_MSR_DIS_CFIFO_HGO	(1 << 11)	/* undocumented */
#define MSR_LX_SPARE_MSR_VFIFO_ARB_SEL	(1 << 10)	/* undocumented */
#define MSR_LX_SPARE_MSR_WM_LPEN_OVRD	(1 << 9)	/* undocumented */
#define MSR_LX_SPARE_MSR_LOAD_WM_LPEN_M	(1 << 8)	/* undocumented */
#define MSR_LX_SPARE_MSR_DIS_INIT_V_PRI	(1 << 7)	/* undocumented */
#define MSR_LX_SPARE_MSR_DIS_VIFO_WM	(1 << 6)
#define MSR_LX_SPARE_MSR_DIS_CWD_CHECK	(1 << 5)	/* undocumented */
#define MSR_LX_SPARE_MSR_PIX8_PAN_FIX	(1 << 4)	/* undocumented */
#define MSR_LX_SPARE_MSR_FIRST_REQ_MASK	(1 << 1)	/* undocumented */

#endif