xref: /openbmc/linux/include/video/gbe.h (revision 42bd2d91)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * include/video/gbe.h -- SGI GBE (Graphics Back End)
4  *
5  * Copyright (C) 1999 Silicon Graphics, Inc. (Jeffrey Newquist)
6  */
7 
8 #ifndef __GBE_H__
9 #define __GBE_H__
10 
11 struct sgi_gbe {
12 	volatile uint32_t ctrlstat;	/* general control */
13 	volatile uint32_t dotclock;	/* dot clock PLL control */
14 	volatile uint32_t i2c;		/* crt I2C control */
15 	volatile uint32_t sysclk;	/* system clock PLL control */
16 	volatile uint32_t i2cfp;	/* flat panel I2C control */
17 	volatile uint32_t id;		/* device id/chip revision */
18 	volatile uint32_t config;       /* power on configuration [1] */
19 	volatile uint32_t bist;         /* internal bist status [1] */
20 	uint32_t _pad0[0x010000/4 - 8];
21 	volatile uint32_t vt_xy;	/* current dot coords */
22 	volatile uint32_t vt_xymax;	/* maximum dot coords */
23 	volatile uint32_t vt_vsync;	/* vsync on/off */
24 	volatile uint32_t vt_hsync;	/* hsync on/off */
25 	volatile uint32_t vt_vblank;	/* vblank on/off */
26 	volatile uint32_t vt_hblank;	/* hblank on/off */
27 	volatile uint32_t vt_flags;	/* polarity of vt signals */
28 	volatile uint32_t vt_f2rf_lock;	/* f2rf & framelck y coord */
29 	volatile uint32_t vt_intr01;	/* intr 0,1 y coords */
30 	volatile uint32_t vt_intr23;	/* intr 2,3 y coords */
31 	volatile uint32_t fp_hdrv;	/* flat panel hdrv on/off */
32 	volatile uint32_t fp_vdrv;	/* flat panel vdrv on/off */
33 	volatile uint32_t fp_de;	/* flat panel de on/off */
34 	volatile uint32_t vt_hpixen;	/* intrnl horiz pixel on/off */
35 	volatile uint32_t vt_vpixen;	/* intrnl vert pixel on/off */
36 	volatile uint32_t vt_hcmap;	/* cmap write (horiz) */
37 	volatile uint32_t vt_vcmap;	/* cmap write (vert) */
38 	volatile uint32_t did_start_xy;	/* eol/f did/xy reset val */
39 	volatile uint32_t crs_start_xy;	/* eol/f crs/xy reset val */
40 	volatile uint32_t vc_start_xy;	/* eol/f vc/xy reset val */
41 	uint32_t _pad1[0xffb0/4];
42 	volatile uint32_t ovr_width_tile;/*overlay plane ctrl 0 */
43 	volatile uint32_t ovr_inhwctrl;	/* overlay plane ctrl 1 */
44 	volatile uint32_t ovr_control;	/* overlay plane ctrl 1 */
45 	uint32_t _pad2[0xfff4/4];
46 	volatile uint32_t frm_size_tile;/* normal plane ctrl 0 */
47 	volatile uint32_t frm_size_pixel;/*normal plane ctrl 1 */
48 	volatile uint32_t frm_inhwctrl;	/* normal plane ctrl 2 */
49 	volatile uint32_t frm_control;	/* normal plane ctrl 3 */
50 	uint32_t _pad3[0xfff0/4];
51 	volatile uint32_t did_inhwctrl;	/* DID control */
52 	volatile uint32_t did_control;	/* DID shadow */
53 	uint32_t _pad4[0x7ff8/4];
54 	volatile uint32_t mode_regs[32];/* WID table */
55 	uint32_t _pad5[0x7f80/4];
56 	volatile uint32_t cmap[6144];	/* color map */
57 	uint32_t _pad6[0x2000/4];
58 	volatile uint32_t cm_fifo;	/* color map fifo status */
59 	uint32_t _pad7[0x7ffc/4];
60 	volatile uint32_t gmap[256];	/* gamma map */
61 	uint32_t _pad8[0x7c00/4];
62 	volatile uint32_t gmap10[1024];	/* gamma map */
63 	uint32_t _pad9[0x7000/4];
64 	volatile uint32_t crs_pos;	/* cusror control 0 */
65 	volatile uint32_t crs_ctl;	/* cusror control 1 */
66 	volatile uint32_t crs_cmap[3];	/* crs cmap */
67 	uint32_t _pad10[0x7fec/4];
68 	volatile uint32_t crs_glyph[64];/* crs glyph */
69 	uint32_t _pad11[0x7f00/4];
70 	volatile uint32_t vc_0;	/* video capture crtl 0 */
71 	volatile uint32_t vc_1;	/* video capture crtl 1 */
72 	volatile uint32_t vc_2;	/* video capture crtl 2 */
73 	volatile uint32_t vc_3;	/* video capture crtl 3 */
74 	volatile uint32_t vc_4;	/* video capture crtl 4 */
75 	volatile uint32_t vc_5;	/* video capture crtl 5 */
76 	volatile uint32_t vc_6;	/* video capture crtl 6 */
77 	volatile uint32_t vc_7;	/* video capture crtl 7 */
78 	volatile uint32_t vc_8;	/* video capture crtl 8 */
79 };
80 
81 #define MASK(msb, lsb)		\
82 	( (((u32)1<<((msb)-(lsb)+1))-1) << (lsb) )
83 #define GET(v, msb, lsb)	\
84 	( ((u32)(v) & MASK(msb,lsb)) >> (lsb) )
85 #define SET(v, f, msb, lsb)	\
86 	( (v) = ((v)&~MASK(msb,lsb)) | (( (u32)(f)<<(lsb) ) & MASK(msb,lsb)) )
87 
88 #define GET_GBE_FIELD(reg, field, v)		\
89 	GET((v), GBE_##reg##_##field##_MSB, GBE_##reg##_##field##_LSB)
90 #define SET_GBE_FIELD(reg, field, v, f)		\
91 	SET((v), (f), GBE_##reg##_##field##_MSB, GBE_##reg##_##field##_LSB)
92 
93 /*
94  * Bit mask information
95  */
96 #define GBE_CTRLSTAT_CHIPID_MSB		 3
97 #define GBE_CTRLSTAT_CHIPID_LSB		 0
98 #define GBE_CTRLSTAT_SENSE_N_MSB	 4
99 #define GBE_CTRLSTAT_SENSE_N_LSB	 4
100 #define GBE_CTRLSTAT_PCLKSEL_MSB	29
101 #define GBE_CTRLSTAT_PCLKSEL_LSB	28
102 
103 #define GBE_DOTCLK_M_MSB		 7
104 #define GBE_DOTCLK_M_LSB		 0
105 #define GBE_DOTCLK_N_MSB		13
106 #define GBE_DOTCLK_N_LSB		 8
107 #define GBE_DOTCLK_P_MSB		15
108 #define GBE_DOTCLK_P_LSB		14
109 #define GBE_DOTCLK_RUN_MSB		20
110 #define GBE_DOTCLK_RUN_LSB		20
111 
112 #define GBE_VT_XY_Y_MSB		23
113 #define GBE_VT_XY_Y_LSB		12
114 #define GBE_VT_XY_X_MSB		11
115 #define GBE_VT_XY_X_LSB		 0
116 #define GBE_VT_XY_FREEZE_MSB		31
117 #define GBE_VT_XY_FREEZE_LSB		31
118 
119 #define GBE_FP_VDRV_ON_MSB	23
120 #define GBE_FP_VDRV_ON_LSB	12
121 #define GBE_FP_VDRV_OFF_MSB	11
122 #define GBE_FP_VDRV_OFF_LSB	0
123 
124 #define GBE_FP_HDRV_ON_MSB	23
125 #define GBE_FP_HDRV_ON_LSB	12
126 #define GBE_FP_HDRV_OFF_MSB	11
127 #define GBE_FP_HDRV_OFF_LSB	0
128 
129 #define GBE_FP_DE_ON_MSB		23
130 #define GBE_FP_DE_ON_LSB		12
131 #define GBE_FP_DE_OFF_MSB		11
132 #define GBE_FP_DE_OFF_LSB		0
133 
134 #define GBE_VT_VSYNC_VSYNC_ON_MSB	23
135 #define GBE_VT_VSYNC_VSYNC_ON_LSB	12
136 #define GBE_VT_VSYNC_VSYNC_OFF_MSB	11
137 #define GBE_VT_VSYNC_VSYNC_OFF_LSB	 0
138 
139 #define GBE_VT_HSYNC_HSYNC_ON_MSB	23
140 #define GBE_VT_HSYNC_HSYNC_ON_LSB	12
141 #define GBE_VT_HSYNC_HSYNC_OFF_MSB	11
142 #define GBE_VT_HSYNC_HSYNC_OFF_LSB	 0
143 
144 #define GBE_VT_VBLANK_VBLANK_ON_MSB	23
145 #define GBE_VT_VBLANK_VBLANK_ON_LSB	12
146 #define GBE_VT_VBLANK_VBLANK_OFF_MSB	11
147 #define GBE_VT_VBLANK_VBLANK_OFF_LSB	 0
148 
149 #define GBE_VT_HBLANK_HBLANK_ON_MSB	23
150 #define GBE_VT_HBLANK_HBLANK_ON_LSB	12
151 #define GBE_VT_HBLANK_HBLANK_OFF_MSB	11
152 #define GBE_VT_HBLANK_HBLANK_OFF_LSB	 0
153 
154 #define GBE_VT_FLAGS_F2RF_HIGH_MSB	 6
155 #define GBE_VT_FLAGS_F2RF_HIGH_LSB	 6
156 #define GBE_VT_FLAGS_SYNC_LOW_MSB	 5
157 #define GBE_VT_FLAGS_SYNC_LOW_LSB	 5
158 #define GBE_VT_FLAGS_SYNC_HIGH_MSB	 4
159 #define GBE_VT_FLAGS_SYNC_HIGH_LSB	 4
160 #define GBE_VT_FLAGS_HDRV_LOW_MSB	 3
161 #define GBE_VT_FLAGS_HDRV_LOW_LSB	 3
162 #define GBE_VT_FLAGS_HDRV_INVERT_MSB	 2
163 #define GBE_VT_FLAGS_HDRV_INVERT_LSB	 2
164 #define GBE_VT_FLAGS_VDRV_LOW_MSB	 1
165 #define GBE_VT_FLAGS_VDRV_LOW_LSB	 1
166 #define GBE_VT_FLAGS_VDRV_INVERT_MSB	 0
167 #define GBE_VT_FLAGS_VDRV_INVERT_LSB	 0
168 
169 #define GBE_VT_VCMAP_VCMAP_ON_MSB	23
170 #define GBE_VT_VCMAP_VCMAP_ON_LSB	12
171 #define GBE_VT_VCMAP_VCMAP_OFF_MSB	11
172 #define GBE_VT_VCMAP_VCMAP_OFF_LSB	 0
173 
174 #define GBE_VT_HCMAP_HCMAP_ON_MSB	23
175 #define GBE_VT_HCMAP_HCMAP_ON_LSB	12
176 #define GBE_VT_HCMAP_HCMAP_OFF_MSB	11
177 #define GBE_VT_HCMAP_HCMAP_OFF_LSB	 0
178 
179 #define GBE_VT_XYMAX_MAXX_MSB	11
180 #define GBE_VT_XYMAX_MAXX_LSB	 0
181 #define GBE_VT_XYMAX_MAXY_MSB	23
182 #define GBE_VT_XYMAX_MAXY_LSB	12
183 
184 #define GBE_VT_HPIXEN_HPIXEN_ON_MSB	23
185 #define GBE_VT_HPIXEN_HPIXEN_ON_LSB	12
186 #define GBE_VT_HPIXEN_HPIXEN_OFF_MSB	11
187 #define GBE_VT_HPIXEN_HPIXEN_OFF_LSB	 0
188 
189 #define GBE_VT_VPIXEN_VPIXEN_ON_MSB	23
190 #define GBE_VT_VPIXEN_VPIXEN_ON_LSB	12
191 #define GBE_VT_VPIXEN_VPIXEN_OFF_MSB	11
192 #define GBE_VT_VPIXEN_VPIXEN_OFF_LSB	 0
193 
194 #define GBE_OVR_CONTROL_OVR_DMA_ENABLE_MSB	 0
195 #define GBE_OVR_CONTROL_OVR_DMA_ENABLE_LSB	 0
196 
197 #define GBE_OVR_INHWCTRL_OVR_DMA_ENABLE_MSB	 0
198 #define GBE_OVR_INHWCTRL_OVR_DMA_ENABLE_LSB	 0
199 
200 #define GBE_OVR_WIDTH_TILE_OVR_FIFO_RESET_MSB	13
201 #define GBE_OVR_WIDTH_TILE_OVR_FIFO_RESET_LSB	13
202 
203 #define GBE_FRM_CONTROL_FRM_DMA_ENABLE_MSB	 0
204 #define GBE_FRM_CONTROL_FRM_DMA_ENABLE_LSB	 0
205 #define GBE_FRM_CONTROL_FRM_TILE_PTR_MSB	31
206 #define GBE_FRM_CONTROL_FRM_TILE_PTR_LSB	 9
207 #define GBE_FRM_CONTROL_FRM_LINEAR_MSB		 1
208 #define GBE_FRM_CONTROL_FRM_LINEAR_LSB		 1
209 
210 #define GBE_FRM_INHWCTRL_FRM_DMA_ENABLE_MSB	 0
211 #define GBE_FRM_INHWCTRL_FRM_DMA_ENABLE_LSB	 0
212 
213 #define GBE_FRM_SIZE_TILE_FRM_WIDTH_TILE_MSB	12
214 #define GBE_FRM_SIZE_TILE_FRM_WIDTH_TILE_LSB	 5
215 #define GBE_FRM_SIZE_TILE_FRM_RHS_MSB		 4
216 #define GBE_FRM_SIZE_TILE_FRM_RHS_LSB		 0
217 #define GBE_FRM_SIZE_TILE_FRM_DEPTH_MSB		14
218 #define GBE_FRM_SIZE_TILE_FRM_DEPTH_LSB		13
219 #define GBE_FRM_SIZE_TILE_FRM_FIFO_RESET_MSB	15
220 #define GBE_FRM_SIZE_TILE_FRM_FIFO_RESET_LSB	15
221 
222 #define GBE_FRM_SIZE_PIXEL_FB_HEIGHT_PIX_MSB	31
223 #define GBE_FRM_SIZE_PIXEL_FB_HEIGHT_PIX_LSB	16
224 
225 #define GBE_DID_CONTROL_DID_DMA_ENABLE_MSB	 0
226 #define GBE_DID_CONTROL_DID_DMA_ENABLE_LSB	 0
227 #define GBE_DID_INHWCTRL_DID_DMA_ENABLE_MSB	 0
228 #define GBE_DID_INHWCTRL_DID_DMA_ENABLE_LSB	 0
229 
230 #define GBE_DID_START_XY_DID_STARTY_MSB		23
231 #define GBE_DID_START_XY_DID_STARTY_LSB		12
232 #define GBE_DID_START_XY_DID_STARTX_MSB		11
233 #define GBE_DID_START_XY_DID_STARTX_LSB		 0
234 
235 #define GBE_CRS_START_XY_CRS_STARTY_MSB		23
236 #define GBE_CRS_START_XY_CRS_STARTY_LSB		12
237 #define GBE_CRS_START_XY_CRS_STARTX_MSB		11
238 #define GBE_CRS_START_XY_CRS_STARTX_LSB		 0
239 
240 #define GBE_WID_AUX_MSB		12
241 #define GBE_WID_AUX_LSB		11
242 #define GBE_WID_GAMMA_MSB	10
243 #define GBE_WID_GAMMA_LSB	10
244 #define GBE_WID_CM_MSB		 9
245 #define GBE_WID_CM_LSB		 5
246 #define GBE_WID_TYP_MSB		 4
247 #define GBE_WID_TYP_LSB		 2
248 #define GBE_WID_BUF_MSB		 1
249 #define GBE_WID_BUF_LSB		 0
250 
251 #define GBE_VC_START_XY_VC_STARTY_MSB	23
252 #define GBE_VC_START_XY_VC_STARTY_LSB	12
253 #define GBE_VC_START_XY_VC_STARTX_MSB	11
254 #define GBE_VC_START_XY_VC_STARTX_LSB	 0
255 
256 /* Constants */
257 
258 #define GBE_FRM_DEPTH_8		0
259 #define GBE_FRM_DEPTH_16	1
260 #define GBE_FRM_DEPTH_32	2
261 
262 #define GBE_CMODE_I8		0
263 #define GBE_CMODE_I12		1
264 #define GBE_CMODE_RG3B2		2
265 #define GBE_CMODE_RGB4		3
266 #define GBE_CMODE_ARGB5		4
267 #define GBE_CMODE_RGB8		5
268 #define GBE_CMODE_RGBA5		6
269 #define GBE_CMODE_RGB10		7
270 
271 #define GBE_BMODE_BOTH		3
272 
273 #define GBE_CRS_MAGIC		54
274 #define GBE_PIXEN_MAGIC_ON	19
275 #define GBE_PIXEN_MAGIC_OFF	 2
276 
277 #define GBE_TLB_SIZE		128
278 
279 /* [1] - only GBE revision 2 and later */
280 
281 /*
282  * Video Timing Data Structure
283  */
284 
285 struct gbe_timing_info {
286 	int flags;
287 	short width;		/* Monitor resolution */
288 	short height;
289 	int fields_sec;		/* fields/sec  (Hz -3 dec. places */
290 	int cfreq;		/* pixel clock frequency (MHz -3 dec. places) */
291 	short htotal;		/* Horizontal total pixels */
292 	short hblank_start;	/* Horizontal blank start */
293 	short hblank_end;	/* Horizontal blank end */
294 	short hsync_start;	/* Horizontal sync start */
295 	short hsync_end;	/* Horizontal sync end */
296 	short vtotal;		/* Vertical total lines */
297 	short vblank_start;	/* Vertical blank start */
298 	short vblank_end;	/* Vertical blank end */
299 	short vsync_start;	/* Vertical sync start */
300 	short vsync_end;	/* Vertical sync end */
301 	short pll_m;		/* PLL M parameter */
302 	short pll_n;		/* PLL P parameter */
303 	short pll_p;		/* PLL N parameter */
304 };
305 
306 /* Defines for gbe_vof_info_t flags */
307 
308 #define GBE_VOF_UNKNOWNMON	1
309 #define GBE_VOF_STEREO		2
310 #define GBE_VOF_DO_GENSYNC	4	/* enable incoming sync */
311 #define GBE_VOF_SYNC_ON_GREEN	8	/* sync on green */
312 #define GBE_VOF_FLATPANEL	0x1000	/* FLATPANEL Timing */
313 #define GBE_VOF_MAGICKEY	0x2000	/* Backdoor key */
314 
315 #endif		/* ! __GBE_H__ */
316