xref: /openbmc/linux/drivers/gpu/drm/i2c/ch7006_priv.h (revision 8e8e69d6)
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/drm_probe_helper.h>
34 #include <drm/i2c/ch7006.h>
35 
36 typedef int64_t fixed;
37 #define fixed1 (1LL << 32)
38 
39 enum ch7006_tv_norm {
40 	TV_NORM_PAL,
41 	TV_NORM_PAL_M,
42 	TV_NORM_PAL_N,
43 	TV_NORM_PAL_NC,
44 	TV_NORM_PAL_60,
45 	TV_NORM_NTSC_M,
46 	TV_NORM_NTSC_J,
47 	NUM_TV_NORMS
48 };
49 
50 struct ch7006_tv_norm_info {
51 	fixed vrefresh;
52 	int vdisplay;
53 	int vtotal;
54 	int hvirtual;
55 
56 	fixed subc_freq;
57 	fixed black_level;
58 
59 	uint32_t dispmode;
60 	int voffset;
61 };
62 
63 struct ch7006_mode {
64 	struct drm_display_mode mode;
65 
66 	int enc_hdisp;
67 	int enc_vdisp;
68 
69 	fixed subc_coeff;
70 	uint32_t dispmode;
71 
72 	uint32_t valid_scales;
73 	uint32_t valid_norms;
74 };
75 
76 struct ch7006_state {
77 	uint8_t regs[0x26];
78 };
79 
80 struct ch7006_priv {
81 	struct ch7006_encoder_params params;
82 	const struct ch7006_mode *mode;
83 
84 	struct ch7006_state state;
85 	struct ch7006_state saved_state;
86 
87 	struct drm_property *scale_property;
88 
89 	int select_subconnector;
90 	int subconnector;
91 	int hmargin;
92 	int vmargin;
93 	enum ch7006_tv_norm norm;
94 	int brightness;
95 	int contrast;
96 	int flicker;
97 	int scale;
98 
99 	int chip_version;
100 	int last_dpms;
101 };
102 
103 #define to_ch7006_priv(x) \
104 	((struct ch7006_priv *)to_encoder_slave(x)->slave_priv)
105 
106 extern int ch7006_debug;
107 extern char *ch7006_tv_norm;
108 extern int ch7006_scale;
109 
110 extern const char * const ch7006_tv_norm_names[];
111 extern const struct ch7006_tv_norm_info ch7006_tv_norms[];
112 extern const struct ch7006_mode ch7006_modes[];
113 
114 const struct ch7006_mode *ch7006_lookup_mode(struct drm_encoder *encoder,
115 					     const struct drm_display_mode *drm_mode);
116 
117 void ch7006_setup_levels(struct drm_encoder *encoder);
118 void ch7006_setup_subcarrier(struct drm_encoder *encoder);
119 void ch7006_setup_pll(struct drm_encoder *encoder);
120 void ch7006_setup_power_state(struct drm_encoder *encoder);
121 void ch7006_setup_properties(struct drm_encoder *encoder);
122 
123 void ch7006_write(struct i2c_client *client, uint8_t addr, uint8_t val);
124 uint8_t ch7006_read(struct i2c_client *client, uint8_t addr);
125 
126 void ch7006_state_load(struct i2c_client *client,
127 		       struct ch7006_state *state);
128 void ch7006_state_save(struct i2c_client *client,
129 		       struct ch7006_state *state);
130 
131 /* Some helper macros */
132 
133 #define ch7006_dbg(client, format, ...) do {				\
134 		if (ch7006_debug)					\
135 			dev_printk(KERN_DEBUG, &client->dev,		\
136 				   "%s: " format, __func__, ## __VA_ARGS__); \
137 	} while (0)
138 #define ch7006_info(client, format, ...) \
139 				dev_info(&client->dev, format, __VA_ARGS__)
140 #define ch7006_err(client, format, ...) \
141 				dev_err(&client->dev, format, __VA_ARGS__)
142 
143 #define __mask(src, bitfield) \
144 		(((2 << (1 ? bitfield)) - 1) & ~((1 << (0 ? bitfield)) - 1))
145 #define mask(bitfield) __mask(bitfield)
146 
147 #define __bitf(src, bitfield, x) \
148 		(((x) >> (src) << (0 ? bitfield)) &  __mask(src, bitfield))
149 #define bitf(bitfield, x) __bitf(bitfield, x)
150 #define bitfs(bitfield, s) __bitf(bitfield, bitfield##_##s)
151 #define setbitf(state, reg, bitfield, x)				\
152 	state->regs[reg] = (state->regs[reg] & ~mask(reg##_##bitfield))	\
153 		| bitf(reg##_##bitfield, x)
154 
155 #define __unbitf(src, bitfield, x) \
156 		((x & __mask(src, bitfield)) >> (0 ? bitfield) << (src))
157 #define unbitf(bitfield, x) __unbitf(bitfield, x)
158 
159 static inline int interpolate(int y0, int y1, int y2, int x)
160 {
161 	return y1 + (x < 50 ? y1 - y0 : y2 - y1) * (x - 50) / 50;
162 }
163 
164 static inline int32_t round_fixed(fixed x)
165 {
166 	return (x + fixed1/2) >> 32;
167 }
168 
169 #define ch7006_load_reg(client, state, reg) ch7006_write(client, reg, state->regs[reg])
170 #define ch7006_save_reg(client, state, reg) state->regs[reg] = ch7006_read(client, reg)
171 
172 /* Fixed hardware specs */
173 
174 #define CH7006_FREQ0				14318
175 #define CH7006_MAXN				650
176 #define CH7006_MAXM				315
177 
178 /* Register definitions */
179 
180 #define CH7006_DISPMODE				0x00
181 #define CH7006_DISPMODE_INPUT_RES		0, 7:5
182 #define CH7006_DISPMODE_INPUT_RES_512x384	0x0
183 #define CH7006_DISPMODE_INPUT_RES_720x400	0x1
184 #define CH7006_DISPMODE_INPUT_RES_640x400	0x2
185 #define CH7006_DISPMODE_INPUT_RES_640x480	0x3
186 #define CH7006_DISPMODE_INPUT_RES_800x600	0x4
187 #define CH7006_DISPMODE_INPUT_RES_NATIVE	0x5
188 #define CH7006_DISPMODE_OUTPUT_STD		0, 4:3
189 #define CH7006_DISPMODE_OUTPUT_STD_PAL		0x0
190 #define CH7006_DISPMODE_OUTPUT_STD_NTSC		0x1
191 #define CH7006_DISPMODE_OUTPUT_STD_PAL_M	0x2
192 #define CH7006_DISPMODE_OUTPUT_STD_NTSC_J	0x3
193 #define CH7006_DISPMODE_SCALING_RATIO		0, 2:0
194 #define CH7006_DISPMODE_SCALING_RATIO_5_4	0x0
195 #define CH7006_DISPMODE_SCALING_RATIO_1_1	0x1
196 #define CH7006_DISPMODE_SCALING_RATIO_7_8	0x2
197 #define CH7006_DISPMODE_SCALING_RATIO_5_6	0x3
198 #define CH7006_DISPMODE_SCALING_RATIO_3_4	0x4
199 #define CH7006_DISPMODE_SCALING_RATIO_7_10	0x5
200 
201 #define CH7006_FFILTER				0x01
202 #define CH7006_FFILTER_TEXT			0, 5:4
203 #define CH7006_FFILTER_LUMA			0, 3:2
204 #define CH7006_FFILTER_CHROMA			0, 1:0
205 #define CH7006_FFILTER_CHROMA_NO_DCRAWL		0x3
206 
207 #define CH7006_BWIDTH				0x03
208 #define CH7006_BWIDTH_5L_FFILER			(1 << 7)
209 #define CH7006_BWIDTH_CVBS_NO_CHROMA		(1 << 6)
210 #define CH7006_BWIDTH_CHROMA			0, 5:4
211 #define CH7006_BWIDTH_SVIDEO_YPEAK		(1 << 3)
212 #define CH7006_BWIDTH_SVIDEO_LUMA		0, 2:1
213 #define CH7006_BWIDTH_CVBS_LUMA			0, 0:0
214 
215 #define CH7006_INPUT_FORMAT			0x04
216 #define CH7006_INPUT_FORMAT_DAC_GAIN		(1 << 6)
217 #define CH7006_INPUT_FORMAT_RGB_PASS_THROUGH	(1 << 5)
218 #define CH7006_INPUT_FORMAT_FORMAT		0, 3:0
219 #define CH7006_INPUT_FORMAT_FORMAT_RGB16	0x0
220 #define CH7006_INPUT_FORMAT_FORMAT_YCrCb24m16	0x1
221 #define CH7006_INPUT_FORMAT_FORMAT_RGB24m16	0x2
222 #define CH7006_INPUT_FORMAT_FORMAT_RGB15	0x3
223 #define CH7006_INPUT_FORMAT_FORMAT_RGB24m12C	0x4
224 #define CH7006_INPUT_FORMAT_FORMAT_RGB24m12I	0x5
225 #define CH7006_INPUT_FORMAT_FORMAT_RGB24m8	0x6
226 #define CH7006_INPUT_FORMAT_FORMAT_RGB16m8	0x7
227 #define CH7006_INPUT_FORMAT_FORMAT_RGB15m8	0x8
228 #define CH7006_INPUT_FORMAT_FORMAT_YCrCb24m8	0x9
229 
230 #define CH7006_CLKMODE				0x06
231 #define CH7006_CLKMODE_SUBC_LOCK		(1 << 7)
232 #define CH7006_CLKMODE_MASTER			(1 << 6)
233 #define CH7006_CLKMODE_POS_EDGE			(1 << 4)
234 #define CH7006_CLKMODE_XCM			0, 3:2
235 #define CH7006_CLKMODE_PCM			0, 1:0
236 
237 #define CH7006_START_ACTIVE			0x07
238 #define CH7006_START_ACTIVE_0			0, 7:0
239 
240 #define CH7006_POV				0x08
241 #define CH7006_POV_START_ACTIVE_8		8, 2:2
242 #define CH7006_POV_HPOS_8			8, 1:1
243 #define CH7006_POV_VPOS_8			8, 0:0
244 
245 #define CH7006_BLACK_LEVEL			0x09
246 #define CH7006_BLACK_LEVEL_0			0, 7:0
247 
248 #define CH7006_HPOS				0x0a
249 #define CH7006_HPOS_0				0, 7:0
250 
251 #define CH7006_VPOS				0x0b
252 #define CH7006_VPOS_0				0, 7:0
253 
254 #define CH7006_INPUT_SYNC			0x0d
255 #define CH7006_INPUT_SYNC_EMBEDDED		(1 << 3)
256 #define CH7006_INPUT_SYNC_OUTPUT		(1 << 2)
257 #define CH7006_INPUT_SYNC_PVSYNC		(1 << 1)
258 #define CH7006_INPUT_SYNC_PHSYNC		(1 << 0)
259 
260 #define CH7006_POWER				0x0e
261 #define CH7006_POWER_SCART			(1 << 4)
262 #define CH7006_POWER_RESET			(1 << 3)
263 #define CH7006_POWER_LEVEL			0, 2:0
264 #define CH7006_POWER_LEVEL_CVBS_OFF		0x0
265 #define CH7006_POWER_LEVEL_POWER_OFF		0x1
266 #define CH7006_POWER_LEVEL_SVIDEO_OFF		0x2
267 #define CH7006_POWER_LEVEL_NORMAL		0x3
268 #define CH7006_POWER_LEVEL_FULL_POWER_OFF	0x4
269 
270 #define CH7006_DETECT				0x10
271 #define CH7006_DETECT_SVIDEO_Y_TEST		(1 << 3)
272 #define CH7006_DETECT_SVIDEO_C_TEST		(1 << 2)
273 #define CH7006_DETECT_CVBS_TEST			(1 << 1)
274 #define CH7006_DETECT_SENSE			(1 << 0)
275 
276 #define CH7006_CONTRAST				0x11
277 #define CH7006_CONTRAST_0			0, 2:0
278 
279 #define CH7006_PLLOV	 			0x13
280 #define CH7006_PLLOV_N_8	 		8, 2:1
281 #define CH7006_PLLOV_M_8	 		8, 0:0
282 
283 #define CH7006_PLLM	 			0x14
284 #define CH7006_PLLM_0	 			0, 7:0
285 
286 #define CH7006_PLLN	 			0x15
287 #define CH7006_PLLN_0	 			0, 7:0
288 
289 #define CH7006_BCLKOUT	 			0x17
290 
291 #define CH7006_SUBC_INC0			0x18
292 #define CH7006_SUBC_INC0_28			28, 3:0
293 
294 #define CH7006_SUBC_INC1			0x19
295 #define CH7006_SUBC_INC1_24			24, 3:0
296 
297 #define CH7006_SUBC_INC2			0x1a
298 #define CH7006_SUBC_INC2_20			20, 3:0
299 
300 #define CH7006_SUBC_INC3			0x1b
301 #define CH7006_SUBC_INC3_GPIO1_VAL		(1 << 7)
302 #define CH7006_SUBC_INC3_GPIO0_VAL		(1 << 6)
303 #define CH7006_SUBC_INC3_POUT_3_3V		(1 << 5)
304 #define CH7006_SUBC_INC3_POUT_INV		(1 << 4)
305 #define CH7006_SUBC_INC3_16			16, 3:0
306 
307 #define CH7006_SUBC_INC4			0x1c
308 #define CH7006_SUBC_INC4_GPIO1_IN		(1 << 7)
309 #define CH7006_SUBC_INC4_GPIO0_IN		(1 << 6)
310 #define CH7006_SUBC_INC4_DS_INPUT		(1 << 4)
311 #define CH7006_SUBC_INC4_12			12, 3:0
312 
313 #define CH7006_SUBC_INC5			0x1d
314 #define CH7006_SUBC_INC5_8			8, 3:0
315 
316 #define CH7006_SUBC_INC6			0x1e
317 #define CH7006_SUBC_INC6_4			4, 3:0
318 
319 #define CH7006_SUBC_INC7			0x1f
320 #define CH7006_SUBC_INC7_0			0, 3:0
321 
322 #define CH7006_PLL_CONTROL			0x20
323 #define CH7006_PLL_CONTROL_CPI			(1 << 5)
324 #define CH7006_PLL_CONTROL_CAPACITOR		(1 << 4)
325 #define CH7006_PLL_CONTROL_7STAGES		(1 << 3)
326 #define CH7006_PLL_CONTROL_DIGITAL_5V		(1 << 2)
327 #define CH7006_PLL_CONTROL_ANALOG_5V		(1 << 1)
328 #define CH7006_PLL_CONTROL_MEMORY_5V		(1 << 0)
329 
330 #define CH7006_CALC_SUBC_INC0			0x21
331 #define CH7006_CALC_SUBC_INC0_24		24, 4:3
332 #define CH7006_CALC_SUBC_INC0_HYST		0, 2:1
333 #define CH7006_CALC_SUBC_INC0_AUTO		(1 << 0)
334 
335 #define CH7006_CALC_SUBC_INC1			0x22
336 #define CH7006_CALC_SUBC_INC1_16		16, 7:0
337 
338 #define CH7006_CALC_SUBC_INC2			0x23
339 #define CH7006_CALC_SUBC_INC2_8			8, 7:0
340 
341 #define CH7006_CALC_SUBC_INC3			0x24
342 #define CH7006_CALC_SUBC_INC3_0			0, 7:0
343 
344 #define CH7006_VERSION_ID			0x25
345 
346 #endif
347