xref: /openbmc/linux/drivers/gpu/drm/i2c/ch7006_priv.h (revision e3d786a3)
1 /*
2  * Copyright (C) 2009 Francisco Jerez.
3  * All Rights Reserved.
4  *
5  * Permission is hereby granted, free of charge, to any person obtaining
6  * a copy of this software and associated documentation files (the
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sublicense, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the
14  * next paragraph) shall be included in all copies or substantial
15  * portions of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  *
25  */
26 
27 #ifndef __DRM_I2C_CH7006_PRIV_H__
28 #define __DRM_I2C_CH7006_PRIV_H__
29 
30 #include <drm/drmP.h>
31 #include <drm/drm_crtc_helper.h>
32 #include <drm/drm_encoder_slave.h>
33 #include <drm/i2c/ch7006.h>
34 
35 typedef int64_t fixed;
36 #define fixed1 (1LL << 32)
37 
38 enum ch7006_tv_norm {
39 	TV_NORM_PAL,
40 	TV_NORM_PAL_M,
41 	TV_NORM_PAL_N,
42 	TV_NORM_PAL_NC,
43 	TV_NORM_PAL_60,
44 	TV_NORM_NTSC_M,
45 	TV_NORM_NTSC_J,
46 	NUM_TV_NORMS
47 };
48 
49 struct ch7006_tv_norm_info {
50 	fixed vrefresh;
51 	int vdisplay;
52 	int vtotal;
53 	int hvirtual;
54 
55 	fixed subc_freq;
56 	fixed black_level;
57 
58 	uint32_t dispmode;
59 	int voffset;
60 };
61 
62 struct ch7006_mode {
63 	struct drm_display_mode mode;
64 
65 	int enc_hdisp;
66 	int enc_vdisp;
67 
68 	fixed subc_coeff;
69 	uint32_t dispmode;
70 
71 	uint32_t valid_scales;
72 	uint32_t valid_norms;
73 };
74 
75 struct ch7006_state {
76 	uint8_t regs[0x26];
77 };
78 
79 struct ch7006_priv {
80 	struct ch7006_encoder_params params;
81 	const struct ch7006_mode *mode;
82 
83 	struct ch7006_state state;
84 	struct ch7006_state saved_state;
85 
86 	struct drm_property *scale_property;
87 
88 	int select_subconnector;
89 	int subconnector;
90 	int hmargin;
91 	int vmargin;
92 	enum ch7006_tv_norm norm;
93 	int brightness;
94 	int contrast;
95 	int flicker;
96 	int scale;
97 
98 	int chip_version;
99 	int last_dpms;
100 };
101 
102 #define to_ch7006_priv(x) \
103 	((struct ch7006_priv *)to_encoder_slave(x)->slave_priv)
104 
105 extern int ch7006_debug;
106 extern char *ch7006_tv_norm;
107 extern int ch7006_scale;
108 
109 extern const char * const ch7006_tv_norm_names[];
110 extern const struct ch7006_tv_norm_info ch7006_tv_norms[];
111 extern const struct ch7006_mode ch7006_modes[];
112 
113 const struct ch7006_mode *ch7006_lookup_mode(struct drm_encoder *encoder,
114 					     const struct drm_display_mode *drm_mode);
115 
116 void ch7006_setup_levels(struct drm_encoder *encoder);
117 void ch7006_setup_subcarrier(struct drm_encoder *encoder);
118 void ch7006_setup_pll(struct drm_encoder *encoder);
119 void ch7006_setup_power_state(struct drm_encoder *encoder);
120 void ch7006_setup_properties(struct drm_encoder *encoder);
121 
122 void ch7006_write(struct i2c_client *client, uint8_t addr, uint8_t val);
123 uint8_t ch7006_read(struct i2c_client *client, uint8_t addr);
124 
125 void ch7006_state_load(struct i2c_client *client,
126 		       struct ch7006_state *state);
127 void ch7006_state_save(struct i2c_client *client,
128 		       struct ch7006_state *state);
129 
130 /* Some helper macros */
131 
132 #define ch7006_dbg(client, format, ...) do {				\
133 		if (ch7006_debug)					\
134 			dev_printk(KERN_DEBUG, &client->dev,		\
135 				   "%s: " format, __func__, ## __VA_ARGS__); \
136 	} while (0)
137 #define ch7006_info(client, format, ...) \
138 				dev_info(&client->dev, format, __VA_ARGS__)
139 #define ch7006_err(client, format, ...) \
140 				dev_err(&client->dev, format, __VA_ARGS__)
141 
142 #define __mask(src, bitfield) \
143 		(((2 << (1 ? bitfield)) - 1) & ~((1 << (0 ? bitfield)) - 1))
144 #define mask(bitfield) __mask(bitfield)
145 
146 #define __bitf(src, bitfield, x) \
147 		(((x) >> (src) << (0 ? bitfield)) &  __mask(src, bitfield))
148 #define bitf(bitfield, x) __bitf(bitfield, x)
149 #define bitfs(bitfield, s) __bitf(bitfield, bitfield##_##s)
150 #define setbitf(state, reg, bitfield, x)				\
151 	state->regs[reg] = (state->regs[reg] & ~mask(reg##_##bitfield))	\
152 		| bitf(reg##_##bitfield, x)
153 
154 #define __unbitf(src, bitfield, x) \
155 		((x & __mask(src, bitfield)) >> (0 ? bitfield) << (src))
156 #define unbitf(bitfield, x) __unbitf(bitfield, x)
157 
158 static inline int interpolate(int y0, int y1, int y2, int x)
159 {
160 	return y1 + (x < 50 ? y1 - y0 : y2 - y1) * (x - 50) / 50;
161 }
162 
163 static inline int32_t round_fixed(fixed x)
164 {
165 	return (x + fixed1/2) >> 32;
166 }
167 
168 #define ch7006_load_reg(client, state, reg) ch7006_write(client, reg, state->regs[reg])
169 #define ch7006_save_reg(client, state, reg) state->regs[reg] = ch7006_read(client, reg)
170 
171 /* Fixed hardware specs */
172 
173 #define CH7006_FREQ0				14318
174 #define CH7006_MAXN				650
175 #define CH7006_MAXM				315
176 
177 /* Register definitions */
178 
179 #define CH7006_DISPMODE				0x00
180 #define CH7006_DISPMODE_INPUT_RES		0, 7:5
181 #define CH7006_DISPMODE_INPUT_RES_512x384	0x0
182 #define CH7006_DISPMODE_INPUT_RES_720x400	0x1
183 #define CH7006_DISPMODE_INPUT_RES_640x400	0x2
184 #define CH7006_DISPMODE_INPUT_RES_640x480	0x3
185 #define CH7006_DISPMODE_INPUT_RES_800x600	0x4
186 #define CH7006_DISPMODE_INPUT_RES_NATIVE	0x5
187 #define CH7006_DISPMODE_OUTPUT_STD		0, 4:3
188 #define CH7006_DISPMODE_OUTPUT_STD_PAL		0x0
189 #define CH7006_DISPMODE_OUTPUT_STD_NTSC		0x1
190 #define CH7006_DISPMODE_OUTPUT_STD_PAL_M	0x2
191 #define CH7006_DISPMODE_OUTPUT_STD_NTSC_J	0x3
192 #define CH7006_DISPMODE_SCALING_RATIO		0, 2:0
193 #define CH7006_DISPMODE_SCALING_RATIO_5_4	0x0
194 #define CH7006_DISPMODE_SCALING_RATIO_1_1	0x1
195 #define CH7006_DISPMODE_SCALING_RATIO_7_8	0x2
196 #define CH7006_DISPMODE_SCALING_RATIO_5_6	0x3
197 #define CH7006_DISPMODE_SCALING_RATIO_3_4	0x4
198 #define CH7006_DISPMODE_SCALING_RATIO_7_10	0x5
199 
200 #define CH7006_FFILTER				0x01
201 #define CH7006_FFILTER_TEXT			0, 5:4
202 #define CH7006_FFILTER_LUMA			0, 3:2
203 #define CH7006_FFILTER_CHROMA			0, 1:0
204 #define CH7006_FFILTER_CHROMA_NO_DCRAWL		0x3
205 
206 #define CH7006_BWIDTH				0x03
207 #define CH7006_BWIDTH_5L_FFILER			(1 << 7)
208 #define CH7006_BWIDTH_CVBS_NO_CHROMA		(1 << 6)
209 #define CH7006_BWIDTH_CHROMA			0, 5:4
210 #define CH7006_BWIDTH_SVIDEO_YPEAK		(1 << 3)
211 #define CH7006_BWIDTH_SVIDEO_LUMA		0, 2:1
212 #define CH7006_BWIDTH_CVBS_LUMA			0, 0:0
213 
214 #define CH7006_INPUT_FORMAT			0x04
215 #define CH7006_INPUT_FORMAT_DAC_GAIN		(1 << 6)
216 #define CH7006_INPUT_FORMAT_RGB_PASS_THROUGH	(1 << 5)
217 #define CH7006_INPUT_FORMAT_FORMAT		0, 3:0
218 #define CH7006_INPUT_FORMAT_FORMAT_RGB16	0x0
219 #define CH7006_INPUT_FORMAT_FORMAT_YCrCb24m16	0x1
220 #define CH7006_INPUT_FORMAT_FORMAT_RGB24m16	0x2
221 #define CH7006_INPUT_FORMAT_FORMAT_RGB15	0x3
222 #define CH7006_INPUT_FORMAT_FORMAT_RGB24m12C	0x4
223 #define CH7006_INPUT_FORMAT_FORMAT_RGB24m12I	0x5
224 #define CH7006_INPUT_FORMAT_FORMAT_RGB24m8	0x6
225 #define CH7006_INPUT_FORMAT_FORMAT_RGB16m8	0x7
226 #define CH7006_INPUT_FORMAT_FORMAT_RGB15m8	0x8
227 #define CH7006_INPUT_FORMAT_FORMAT_YCrCb24m8	0x9
228 
229 #define CH7006_CLKMODE				0x06
230 #define CH7006_CLKMODE_SUBC_LOCK		(1 << 7)
231 #define CH7006_CLKMODE_MASTER			(1 << 6)
232 #define CH7006_CLKMODE_POS_EDGE			(1 << 4)
233 #define CH7006_CLKMODE_XCM			0, 3:2
234 #define CH7006_CLKMODE_PCM			0, 1:0
235 
236 #define CH7006_START_ACTIVE			0x07
237 #define CH7006_START_ACTIVE_0			0, 7:0
238 
239 #define CH7006_POV				0x08
240 #define CH7006_POV_START_ACTIVE_8		8, 2:2
241 #define CH7006_POV_HPOS_8			8, 1:1
242 #define CH7006_POV_VPOS_8			8, 0:0
243 
244 #define CH7006_BLACK_LEVEL			0x09
245 #define CH7006_BLACK_LEVEL_0			0, 7:0
246 
247 #define CH7006_HPOS				0x0a
248 #define CH7006_HPOS_0				0, 7:0
249 
250 #define CH7006_VPOS				0x0b
251 #define CH7006_VPOS_0				0, 7:0
252 
253 #define CH7006_INPUT_SYNC			0x0d
254 #define CH7006_INPUT_SYNC_EMBEDDED		(1 << 3)
255 #define CH7006_INPUT_SYNC_OUTPUT		(1 << 2)
256 #define CH7006_INPUT_SYNC_PVSYNC		(1 << 1)
257 #define CH7006_INPUT_SYNC_PHSYNC		(1 << 0)
258 
259 #define CH7006_POWER				0x0e
260 #define CH7006_POWER_SCART			(1 << 4)
261 #define CH7006_POWER_RESET			(1 << 3)
262 #define CH7006_POWER_LEVEL			0, 2:0
263 #define CH7006_POWER_LEVEL_CVBS_OFF		0x0
264 #define CH7006_POWER_LEVEL_POWER_OFF		0x1
265 #define CH7006_POWER_LEVEL_SVIDEO_OFF		0x2
266 #define CH7006_POWER_LEVEL_NORMAL		0x3
267 #define CH7006_POWER_LEVEL_FULL_POWER_OFF	0x4
268 
269 #define CH7006_DETECT				0x10
270 #define CH7006_DETECT_SVIDEO_Y_TEST		(1 << 3)
271 #define CH7006_DETECT_SVIDEO_C_TEST		(1 << 2)
272 #define CH7006_DETECT_CVBS_TEST			(1 << 1)
273 #define CH7006_DETECT_SENSE			(1 << 0)
274 
275 #define CH7006_CONTRAST				0x11
276 #define CH7006_CONTRAST_0			0, 2:0
277 
278 #define CH7006_PLLOV	 			0x13
279 #define CH7006_PLLOV_N_8	 		8, 2:1
280 #define CH7006_PLLOV_M_8	 		8, 0:0
281 
282 #define CH7006_PLLM	 			0x14
283 #define CH7006_PLLM_0	 			0, 7:0
284 
285 #define CH7006_PLLN	 			0x15
286 #define CH7006_PLLN_0	 			0, 7:0
287 
288 #define CH7006_BCLKOUT	 			0x17
289 
290 #define CH7006_SUBC_INC0			0x18
291 #define CH7006_SUBC_INC0_28			28, 3:0
292 
293 #define CH7006_SUBC_INC1			0x19
294 #define CH7006_SUBC_INC1_24			24, 3:0
295 
296 #define CH7006_SUBC_INC2			0x1a
297 #define CH7006_SUBC_INC2_20			20, 3:0
298 
299 #define CH7006_SUBC_INC3			0x1b
300 #define CH7006_SUBC_INC3_GPIO1_VAL		(1 << 7)
301 #define CH7006_SUBC_INC3_GPIO0_VAL		(1 << 6)
302 #define CH7006_SUBC_INC3_POUT_3_3V		(1 << 5)
303 #define CH7006_SUBC_INC3_POUT_INV		(1 << 4)
304 #define CH7006_SUBC_INC3_16			16, 3:0
305 
306 #define CH7006_SUBC_INC4			0x1c
307 #define CH7006_SUBC_INC4_GPIO1_IN		(1 << 7)
308 #define CH7006_SUBC_INC4_GPIO0_IN		(1 << 6)
309 #define CH7006_SUBC_INC4_DS_INPUT		(1 << 4)
310 #define CH7006_SUBC_INC4_12			12, 3:0
311 
312 #define CH7006_SUBC_INC5			0x1d
313 #define CH7006_SUBC_INC5_8			8, 3:0
314 
315 #define CH7006_SUBC_INC6			0x1e
316 #define CH7006_SUBC_INC6_4			4, 3:0
317 
318 #define CH7006_SUBC_INC7			0x1f
319 #define CH7006_SUBC_INC7_0			0, 3:0
320 
321 #define CH7006_PLL_CONTROL			0x20
322 #define CH7006_PLL_CONTROL_CPI			(1 << 5)
323 #define CH7006_PLL_CONTROL_CAPACITOR		(1 << 4)
324 #define CH7006_PLL_CONTROL_7STAGES		(1 << 3)
325 #define CH7006_PLL_CONTROL_DIGITAL_5V		(1 << 2)
326 #define CH7006_PLL_CONTROL_ANALOG_5V		(1 << 1)
327 #define CH7006_PLL_CONTROL_MEMORY_5V		(1 << 0)
328 
329 #define CH7006_CALC_SUBC_INC0			0x21
330 #define CH7006_CALC_SUBC_INC0_24		24, 4:3
331 #define CH7006_CALC_SUBC_INC0_HYST		0, 2:1
332 #define CH7006_CALC_SUBC_INC0_AUTO		(1 << 0)
333 
334 #define CH7006_CALC_SUBC_INC1			0x22
335 #define CH7006_CALC_SUBC_INC1_16		16, 7:0
336 
337 #define CH7006_CALC_SUBC_INC2			0x23
338 #define CH7006_CALC_SUBC_INC2_8			8, 7:0
339 
340 #define CH7006_CALC_SUBC_INC3			0x24
341 #define CH7006_CALC_SUBC_INC3_0			0, 7:0
342 
343 #define CH7006_VERSION_ID			0x25
344 
345 #endif
346