1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
4  * Author:Mark Yao <mark.yao@rock-chips.com>
5  */
6 
7 #ifndef _ROCKCHIP_DRM_VOP_H
8 #define _ROCKCHIP_DRM_VOP_H
9 
10 /*
11  * major: IP major version, used for IP structure
12  * minor: big feature change under same structure
13  */
14 #define VOP_VERSION(major, minor)	((major) << 8 | (minor))
15 #define VOP_MAJOR(version)		((version) >> 8)
16 #define VOP_MINOR(version)		((version) & 0xff)
17 
18 #define NUM_YUV2YUV_COEFFICIENTS 12
19 
20 /* AFBC supports a number of configurable modes. Relevant to us is block size
21  * (16x16 or 32x8), storage modifiers (SPARSE, SPLIT), and the YUV-like
22  * colourspace transform (YTR). 16x16 SPARSE mode is always used. SPLIT mode
23  * could be enabled via the hreg_block_split register, but is not currently
24  * handled. The colourspace transform is implicitly always assumed by the
25  * decoder, so consumers must use this transform as well.
26  *
27  * Failure to match modifiers will cause errors displaying AFBC buffers
28  * produced by conformant AFBC producers, including Mesa.
29  */
30 #define ROCKCHIP_AFBC_MOD \
31 	DRM_FORMAT_MOD_ARM_AFBC( \
32 		AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 | AFBC_FORMAT_MOD_SPARSE \
33 			| AFBC_FORMAT_MOD_YTR \
34 	)
35 
36 enum vop_data_format {
37 	VOP_FMT_ARGB8888 = 0,
38 	VOP_FMT_RGB888,
39 	VOP_FMT_RGB565,
40 	VOP_FMT_YUV420SP = 4,
41 	VOP_FMT_YUV422SP,
42 	VOP_FMT_YUV444SP,
43 };
44 
45 struct vop_reg {
46 	uint32_t mask;
47 	uint16_t offset;
48 	uint8_t shift;
49 	bool write_mask;
50 	bool relaxed;
51 };
52 
53 struct vop_afbc {
54 	struct vop_reg enable;
55 	struct vop_reg win_sel;
56 	struct vop_reg format;
57 	struct vop_reg hreg_block_split;
58 	struct vop_reg pic_size;
59 	struct vop_reg hdr_ptr;
60 	struct vop_reg rstn;
61 };
62 
63 struct vop_modeset {
64 	struct vop_reg htotal_pw;
65 	struct vop_reg hact_st_end;
66 	struct vop_reg hpost_st_end;
67 	struct vop_reg vtotal_pw;
68 	struct vop_reg vact_st_end;
69 	struct vop_reg vpost_st_end;
70 };
71 
72 struct vop_output {
73 	struct vop_reg pin_pol;
74 	struct vop_reg dp_pin_pol;
75 	struct vop_reg dp_dclk_pol;
76 	struct vop_reg edp_pin_pol;
77 	struct vop_reg edp_dclk_pol;
78 	struct vop_reg hdmi_pin_pol;
79 	struct vop_reg hdmi_dclk_pol;
80 	struct vop_reg mipi_pin_pol;
81 	struct vop_reg mipi_dclk_pol;
82 	struct vop_reg rgb_pin_pol;
83 	struct vop_reg rgb_dclk_pol;
84 	struct vop_reg dp_en;
85 	struct vop_reg edp_en;
86 	struct vop_reg hdmi_en;
87 	struct vop_reg mipi_en;
88 	struct vop_reg mipi_dual_channel_en;
89 	struct vop_reg rgb_en;
90 };
91 
92 struct vop_common {
93 	struct vop_reg cfg_done;
94 	struct vop_reg dsp_blank;
95 	struct vop_reg data_blank;
96 	struct vop_reg pre_dither_down;
97 	struct vop_reg dither_down_sel;
98 	struct vop_reg dither_down_mode;
99 	struct vop_reg dither_down_en;
100 	struct vop_reg dither_up;
101 	struct vop_reg dsp_lut_en;
102 	struct vop_reg gate_en;
103 	struct vop_reg mmu_en;
104 	struct vop_reg out_mode;
105 	struct vop_reg standby;
106 };
107 
108 struct vop_misc {
109 	struct vop_reg global_regdone_en;
110 };
111 
112 struct vop_intr {
113 	const int *intrs;
114 	uint32_t nintrs;
115 
116 	struct vop_reg line_flag_num[2];
117 	struct vop_reg enable;
118 	struct vop_reg clear;
119 	struct vop_reg status;
120 };
121 
122 struct vop_scl_extension {
123 	struct vop_reg cbcr_vsd_mode;
124 	struct vop_reg cbcr_vsu_mode;
125 	struct vop_reg cbcr_hsd_mode;
126 	struct vop_reg cbcr_ver_scl_mode;
127 	struct vop_reg cbcr_hor_scl_mode;
128 	struct vop_reg yrgb_vsd_mode;
129 	struct vop_reg yrgb_vsu_mode;
130 	struct vop_reg yrgb_hsd_mode;
131 	struct vop_reg yrgb_ver_scl_mode;
132 	struct vop_reg yrgb_hor_scl_mode;
133 	struct vop_reg line_load_mode;
134 	struct vop_reg cbcr_axi_gather_num;
135 	struct vop_reg yrgb_axi_gather_num;
136 	struct vop_reg vsd_cbcr_gt2;
137 	struct vop_reg vsd_cbcr_gt4;
138 	struct vop_reg vsd_yrgb_gt2;
139 	struct vop_reg vsd_yrgb_gt4;
140 	struct vop_reg bic_coe_sel;
141 	struct vop_reg cbcr_axi_gather_en;
142 	struct vop_reg yrgb_axi_gather_en;
143 	struct vop_reg lb_mode;
144 };
145 
146 struct vop_scl_regs {
147 	const struct vop_scl_extension *ext;
148 
149 	struct vop_reg scale_yrgb_x;
150 	struct vop_reg scale_yrgb_y;
151 	struct vop_reg scale_cbcr_x;
152 	struct vop_reg scale_cbcr_y;
153 };
154 
155 struct vop_yuv2yuv_phy {
156 	struct vop_reg y2r_coefficients[NUM_YUV2YUV_COEFFICIENTS];
157 };
158 
159 struct vop_win_phy {
160 	const struct vop_scl_regs *scl;
161 	const uint32_t *data_formats;
162 	uint32_t nformats;
163 	const uint64_t *format_modifiers;
164 
165 	struct vop_reg enable;
166 	struct vop_reg gate;
167 	struct vop_reg format;
168 	struct vop_reg rb_swap;
169 	struct vop_reg act_info;
170 	struct vop_reg dsp_info;
171 	struct vop_reg dsp_st;
172 	struct vop_reg yrgb_mst;
173 	struct vop_reg uv_mst;
174 	struct vop_reg yrgb_vir;
175 	struct vop_reg uv_vir;
176 	struct vop_reg y_mir_en;
177 	struct vop_reg x_mir_en;
178 
179 	struct vop_reg dst_alpha_ctl;
180 	struct vop_reg src_alpha_ctl;
181 	struct vop_reg alpha_pre_mul;
182 	struct vop_reg alpha_mode;
183 	struct vop_reg alpha_en;
184 	struct vop_reg channel;
185 };
186 
187 struct vop_win_yuv2yuv_data {
188 	uint32_t base;
189 	const struct vop_yuv2yuv_phy *phy;
190 	struct vop_reg y2r_en;
191 };
192 
193 struct vop_win_data {
194 	uint32_t base;
195 	const struct vop_win_phy *phy;
196 	enum drm_plane_type type;
197 };
198 
199 struct vop_data {
200 	uint32_t version;
201 	const struct vop_intr *intr;
202 	const struct vop_common *common;
203 	const struct vop_misc *misc;
204 	const struct vop_modeset *modeset;
205 	const struct vop_output *output;
206 	const struct vop_afbc *afbc;
207 	const struct vop_win_yuv2yuv_data *win_yuv2yuv;
208 	const struct vop_win_data *win;
209 	unsigned int win_size;
210 	unsigned int lut_size;
211 
212 #define VOP_FEATURE_OUTPUT_RGB10	BIT(0)
213 #define VOP_FEATURE_INTERNAL_RGB	BIT(1)
214 	u64 feature;
215 };
216 
217 /* interrupt define */
218 #define DSP_HOLD_VALID_INTR		(1 << 0)
219 #define FS_INTR				(1 << 1)
220 #define LINE_FLAG_INTR			(1 << 2)
221 #define BUS_ERROR_INTR			(1 << 3)
222 
223 #define INTR_MASK			(DSP_HOLD_VALID_INTR | FS_INTR | \
224 					 LINE_FLAG_INTR | BUS_ERROR_INTR)
225 
226 #define DSP_HOLD_VALID_INTR_EN(x)	((x) << 4)
227 #define FS_INTR_EN(x)			((x) << 5)
228 #define LINE_FLAG_INTR_EN(x)		((x) << 6)
229 #define BUS_ERROR_INTR_EN(x)		((x) << 7)
230 #define DSP_HOLD_VALID_INTR_MASK	(1 << 4)
231 #define FS_INTR_MASK			(1 << 5)
232 #define LINE_FLAG_INTR_MASK		(1 << 6)
233 #define BUS_ERROR_INTR_MASK		(1 << 7)
234 
235 #define INTR_CLR_SHIFT			8
236 #define DSP_HOLD_VALID_INTR_CLR		(1 << (INTR_CLR_SHIFT + 0))
237 #define FS_INTR_CLR			(1 << (INTR_CLR_SHIFT + 1))
238 #define LINE_FLAG_INTR_CLR		(1 << (INTR_CLR_SHIFT + 2))
239 #define BUS_ERROR_INTR_CLR		(1 << (INTR_CLR_SHIFT + 3))
240 
241 #define DSP_LINE_NUM(x)			(((x) & 0x1fff) << 12)
242 #define DSP_LINE_NUM_MASK		(0x1fff << 12)
243 
244 /* src alpha ctrl define */
245 #define SRC_FADING_VALUE(x)		(((x) & 0xff) << 24)
246 #define SRC_GLOBAL_ALPHA(x)		(((x) & 0xff) << 16)
247 #define SRC_FACTOR_M0(x)		(((x) & 0x7) << 6)
248 #define SRC_ALPHA_CAL_M0(x)		(((x) & 0x1) << 5)
249 #define SRC_BLEND_M0(x)			(((x) & 0x3) << 3)
250 #define SRC_ALPHA_M0(x)			(((x) & 0x1) << 2)
251 #define SRC_COLOR_M0(x)			(((x) & 0x1) << 1)
252 #define SRC_ALPHA_EN(x)			(((x) & 0x1) << 0)
253 /* dst alpha ctrl define */
254 #define DST_FACTOR_M0(x)		(((x) & 0x7) << 6)
255 
256 /*
257  * display output interface supported by rockchip lcdc
258  */
259 #define ROCKCHIP_OUT_MODE_P888	0
260 #define ROCKCHIP_OUT_MODE_P666	1
261 #define ROCKCHIP_OUT_MODE_P565	2
262 /* for use special outface */
263 #define ROCKCHIP_OUT_MODE_AAAA	15
264 
265 /* output flags */
266 #define ROCKCHIP_OUTPUT_DSI_DUAL	BIT(0)
267 
268 enum alpha_mode {
269 	ALPHA_STRAIGHT,
270 	ALPHA_INVERSE,
271 };
272 
273 enum global_blend_mode {
274 	ALPHA_GLOBAL,
275 	ALPHA_PER_PIX,
276 	ALPHA_PER_PIX_GLOBAL,
277 };
278 
279 enum alpha_cal_mode {
280 	ALPHA_SATURATION,
281 	ALPHA_NO_SATURATION,
282 };
283 
284 enum color_mode {
285 	ALPHA_SRC_PRE_MUL,
286 	ALPHA_SRC_NO_PRE_MUL,
287 };
288 
289 enum factor_mode {
290 	ALPHA_ZERO,
291 	ALPHA_ONE,
292 	ALPHA_SRC,
293 	ALPHA_SRC_INVERSE,
294 	ALPHA_SRC_GLOBAL,
295 };
296 
297 enum scale_mode {
298 	SCALE_NONE = 0x0,
299 	SCALE_UP   = 0x1,
300 	SCALE_DOWN = 0x2
301 };
302 
303 enum lb_mode {
304 	LB_YUV_3840X5 = 0x0,
305 	LB_YUV_2560X8 = 0x1,
306 	LB_RGB_3840X2 = 0x2,
307 	LB_RGB_2560X4 = 0x3,
308 	LB_RGB_1920X5 = 0x4,
309 	LB_RGB_1280X8 = 0x5
310 };
311 
312 enum sacle_up_mode {
313 	SCALE_UP_BIL = 0x0,
314 	SCALE_UP_BIC = 0x1
315 };
316 
317 enum scale_down_mode {
318 	SCALE_DOWN_BIL = 0x0,
319 	SCALE_DOWN_AVG = 0x1
320 };
321 
322 enum dither_down_mode {
323 	RGB888_TO_RGB565 = 0x0,
324 	RGB888_TO_RGB666 = 0x1
325 };
326 
327 enum dither_down_mode_sel {
328 	DITHER_DOWN_ALLEGRO = 0x0,
329 	DITHER_DOWN_FRC = 0x1
330 };
331 
332 enum vop_pol {
333 	HSYNC_POSITIVE = 0,
334 	VSYNC_POSITIVE = 1,
335 	DEN_NEGATIVE   = 2
336 };
337 
338 #define FRAC_16_16(mult, div)    (((mult) << 16) / (div))
339 #define SCL_FT_DEFAULT_FIXPOINT_SHIFT	12
340 #define SCL_MAX_VSKIPLINES		4
341 #define MIN_SCL_FT_AFTER_VSKIP		1
342 
343 static inline uint16_t scl_cal_scale(int src, int dst, int shift)
344 {
345 	return ((src * 2 - 3) << (shift - 1)) / (dst - 1);
346 }
347 
348 static inline uint16_t scl_cal_scale2(int src, int dst)
349 {
350 	return ((src - 1) << 12) / (dst - 1);
351 }
352 
353 #define GET_SCL_FT_BILI_DN(src, dst)	scl_cal_scale(src, dst, 12)
354 #define GET_SCL_FT_BILI_UP(src, dst)	scl_cal_scale(src, dst, 16)
355 #define GET_SCL_FT_BIC(src, dst)	scl_cal_scale(src, dst, 16)
356 
357 static inline uint16_t scl_get_bili_dn_vskip(int src_h, int dst_h,
358 					     int vskiplines)
359 {
360 	int act_height;
361 
362 	act_height = DIV_ROUND_UP(src_h, vskiplines);
363 
364 	if (act_height == dst_h)
365 		return GET_SCL_FT_BILI_DN(src_h, dst_h) / vskiplines;
366 
367 	return GET_SCL_FT_BILI_DN(act_height, dst_h);
368 }
369 
370 static inline enum scale_mode scl_get_scl_mode(int src, int dst)
371 {
372 	if (src < dst)
373 		return SCALE_UP;
374 	else if (src > dst)
375 		return SCALE_DOWN;
376 
377 	return SCALE_NONE;
378 }
379 
380 static inline int scl_get_vskiplines(uint32_t srch, uint32_t dsth)
381 {
382 	uint32_t vskiplines;
383 
384 	for (vskiplines = SCL_MAX_VSKIPLINES; vskiplines > 1; vskiplines /= 2)
385 		if (srch >= vskiplines * dsth * MIN_SCL_FT_AFTER_VSKIP)
386 			break;
387 
388 	return vskiplines;
389 }
390 
391 static inline int scl_vop_cal_lb_mode(int width, bool is_yuv)
392 {
393 	int lb_mode;
394 
395 	if (is_yuv) {
396 		if (width > 1280)
397 			lb_mode = LB_YUV_3840X5;
398 		else
399 			lb_mode = LB_YUV_2560X8;
400 	} else {
401 		if (width > 2560)
402 			lb_mode = LB_RGB_3840X2;
403 		else if (width > 1920)
404 			lb_mode = LB_RGB_2560X4;
405 		else
406 			lb_mode = LB_RGB_1920X5;
407 	}
408 
409 	return lb_mode;
410 }
411 
412 extern const struct component_ops vop_component_ops;
413 #endif /* _ROCKCHIP_DRM_VOP_H */
414