xref: /linux/drivers/gpu/drm/bridge/analogix/analogix-i2c-dptx.h (revision 8dd06ef34b6e2f41b29fbf5fc1663780f2524285)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright(c) 2016, Analogix Semiconductor.
4  *
5  * Based on anx7808 driver obtained from chromeos with copyright:
6  * Copyright(c) 2013, Google Inc.
7  */
8 #ifndef _ANALOGIX_I2C_DPTX_H_
9 #define _ANALOGIX_I2C_DPTX_H_
10 
11 /***************************************************************/
12 /* Register definitions for TX_P0                              */
13 /***************************************************************/
14 
15 /* HDCP Status Register */
16 #define SP_TX_HDCP_STATUS_REG		0x00
17 #define SP_AUTH_FAIL			BIT(5)
18 #define SP_AUTHEN_PASS			BIT(1)
19 
20 /* HDCP Control Register 0 */
21 #define SP_HDCP_CTRL0_REG		0x01
22 #define SP_RX_REPEATER			BIT(6)
23 #define SP_RE_AUTH			BIT(5)
24 #define SP_SW_AUTH_OK			BIT(4)
25 #define SP_HARD_AUTH_EN			BIT(3)
26 #define SP_HDCP_ENC_EN			BIT(2)
27 #define SP_BKSV_SRM_PASS		BIT(1)
28 #define SP_KSVLIST_VLD			BIT(0)
29 /* HDCP Function Enabled */
30 #define SP_HDCP_FUNCTION_ENABLED	(BIT(0) | BIT(1) | BIT(2) | BIT(3))
31 
32 /* HDCP Receiver BSTATUS Register 0 */
33 #define	SP_HDCP_RX_BSTATUS0_REG		0x1b
34 /* HDCP Receiver BSTATUS Register 1 */
35 #define	SP_HDCP_RX_BSTATUS1_REG		0x1c
36 
37 /* HDCP Embedded "Blue Screen" Content Registers */
38 #define SP_HDCP_VID0_BLUE_SCREEN_REG	0x2c
39 #define SP_HDCP_VID1_BLUE_SCREEN_REG	0x2d
40 #define SP_HDCP_VID2_BLUE_SCREEN_REG	0x2e
41 
42 /* HDCP Wait R0 Timing Register */
43 #define SP_HDCP_WAIT_R0_TIME_REG	0x40
44 
45 /* HDCP Link Integrity Check Timer Register */
46 #define SP_HDCP_LINK_CHECK_TIMER_REG	0x41
47 
48 /* HDCP Repeater Ready Wait Timer Register */
49 #define SP_HDCP_RPTR_RDY_WAIT_TIME_REG	0x42
50 
51 /* HDCP Auto Timer Register */
52 #define SP_HDCP_AUTO_TIMER_REG		0x51
53 
54 /* HDCP Key Status Register */
55 #define SP_HDCP_KEY_STATUS_REG		0x5e
56 
57 /* HDCP Key Command Register */
58 #define SP_HDCP_KEY_COMMAND_REG		0x5f
59 #define SP_DISABLE_SYNC_HDCP		BIT(2)
60 
61 /* OTP Memory Key Protection Registers */
62 #define SP_OTP_KEY_PROTECT1_REG		0x60
63 #define SP_OTP_KEY_PROTECT2_REG		0x61
64 #define SP_OTP_KEY_PROTECT3_REG		0x62
65 #define SP_OTP_PSW1			0xa2
66 #define SP_OTP_PSW2			0x7e
67 #define SP_OTP_PSW3			0xc6
68 
69 /* DP System Control Registers */
70 #define SP_DP_SYSTEM_CTRL_BASE		(0x80 - 1)
71 /* Bits for DP System Control Register 2 */
72 #define SP_CHA_STA			BIT(2)
73 /* Bits for DP System Control Register 3 */
74 #define SP_HPD_STATUS			BIT(6)
75 #define SP_HPD_FORCE			BIT(5)
76 #define SP_HPD_CTRL			BIT(4)
77 #define SP_STRM_VALID			BIT(2)
78 #define SP_STRM_FORCE			BIT(1)
79 #define SP_STRM_CTRL			BIT(0)
80 /* Bits for DP System Control Register 4 */
81 #define SP_ENHANCED_MODE		BIT(3)
82 
83 /* DP Video Control Register */
84 #define SP_DP_VIDEO_CTRL_REG		0x84
85 #define SP_COLOR_F_MASK			0x06
86 #define SP_COLOR_F_SHIFT		1
87 #define SP_BPC_MASK			0xe0
88 #define SP_BPC_SHIFT			5
89 #  define SP_BPC_6BITS			0x00
90 #  define SP_BPC_8BITS			0x01
91 #  define SP_BPC_10BITS			0x02
92 #  define SP_BPC_12BITS			0x03
93 
94 /* DP Audio Control Register */
95 #define SP_DP_AUDIO_CTRL_REG		0x87
96 #define SP_AUD_EN			BIT(0)
97 
98 /* 10us Pulse Generate Timer Registers */
99 #define SP_I2C_GEN_10US_TIMER0_REG	0x88
100 #define SP_I2C_GEN_10US_TIMER1_REG	0x89
101 
102 /* Packet Send Control Register */
103 #define SP_PACKET_SEND_CTRL_REG		0x90
104 #define SP_AUD_IF_UP			BIT(7)
105 #define SP_AVI_IF_UD			BIT(6)
106 #define SP_MPEG_IF_UD			BIT(5)
107 #define SP_SPD_IF_UD			BIT(4)
108 #define SP_AUD_IF_EN			BIT(3)
109 #define SP_AVI_IF_EN			BIT(2)
110 #define SP_MPEG_IF_EN			BIT(1)
111 #define SP_SPD_IF_EN			BIT(0)
112 
113 /* DP HDCP Control Register */
114 #define SP_DP_HDCP_CTRL_REG		0x92
115 #define SP_AUTO_EN			BIT(7)
116 #define SP_AUTO_START			BIT(5)
117 #define SP_LINK_POLLING			BIT(1)
118 
119 /* DP Main Link Bandwidth Setting Register */
120 #define SP_DP_MAIN_LINK_BW_SET_REG	0xa0
121 #define SP_LINK_BW_SET_MASK		0x1f
122 #define SP_INITIAL_SLIM_M_AUD_SEL	BIT(5)
123 
124 /* DP Lane Count Setting Register */
125 #define SP_DP_LANE_COUNT_SET_REG	0xa1
126 
127 /* DP Training Pattern Set Register */
128 #define SP_DP_TRAINING_PATTERN_SET_REG	0xa2
129 
130 /* DP Lane 0 Link Training Control Register */
131 #define SP_DP_LANE0_LT_CTRL_REG		0xa3
132 #define SP_TX_SW_SET_MASK		0x1b
133 #define SP_MAX_PRE_REACH		BIT(5)
134 #define SP_MAX_DRIVE_REACH		BIT(4)
135 #define SP_PRE_EMP_LEVEL1		BIT(3)
136 #define SP_DRVIE_CURRENT_LEVEL1		BIT(0)
137 
138 /* DP Link Training Control Register */
139 #define SP_DP_LT_CTRL_REG		0xa8
140 #define SP_DP_LT_INPROGRESS		0x80
141 #define SP_LT_ERROR_TYPE_MASK		0x70
142 #  define SP_LT_NO_ERROR		0x00
143 #  define SP_LT_AUX_WRITE_ERROR		0x01
144 #  define SP_LT_MAX_DRIVE_REACHED	0x02
145 #  define SP_LT_WRONG_LANE_COUNT_SET	0x03
146 #  define SP_LT_LOOP_SAME_5_TIME	0x04
147 #  define SP_LT_CR_FAIL_IN_EQ		0x05
148 #  define SP_LT_EQ_LOOP_5_TIME		0x06
149 #define SP_LT_EN			BIT(0)
150 
151 /* DP CEP Training Control Registers */
152 #define SP_DP_CEP_TRAINING_CTRL0_REG	0xa9
153 #define SP_DP_CEP_TRAINING_CTRL1_REG	0xaa
154 
155 /* DP Debug Register 1 */
156 #define SP_DP_DEBUG1_REG		0xb0
157 #define SP_DEBUG_PLL_LOCK		BIT(4)
158 #define SP_POLLING_EN			BIT(1)
159 
160 /* DP Polling Control Register */
161 #define SP_DP_POLLING_CTRL_REG		0xb4
162 #define SP_AUTO_POLLING_DISABLE		BIT(0)
163 
164 /* DP Link Debug Control Register */
165 #define SP_DP_LINK_DEBUG_CTRL_REG	0xb8
166 #define SP_M_VID_DEBUG			BIT(5)
167 #define SP_NEW_PRBS7			BIT(4)
168 #define SP_INSERT_ER			BIT(1)
169 #define SP_PRBS31_EN			BIT(0)
170 
171 /* AUX Misc control Register */
172 #define SP_AUX_MISC_CTRL_REG		0xbf
173 
174 /* DP PLL control Register */
175 #define SP_DP_PLL_CTRL_REG		0xc7
176 #define SP_PLL_RST			BIT(6)
177 
178 /* DP Analog Power Down Register */
179 #define SP_DP_ANALOG_POWER_DOWN_REG	0xc8
180 #define SP_CH0_PD			BIT(0)
181 
182 /* DP Misc Control Register */
183 #define SP_DP_MISC_CTRL_REG		0xcd
184 #define SP_EQ_TRAINING_LOOP		BIT(6)
185 
186 /* DP Extra I2C Device Address Register */
187 #define SP_DP_EXTRA_I2C_DEV_ADDR_REG	0xce
188 #define SP_I2C_STRETCH_DISABLE		BIT(7)
189 
190 #define SP_I2C_EXTRA_ADDR		0x50
191 
192 /* DP Downspread Control Register 1 */
193 #define SP_DP_DOWNSPREAD_CTRL1_REG	0xd0
194 
195 /* DP M Value Calculation Control Register */
196 #define SP_DP_M_CALCULATION_CTRL_REG	0xd9
197 #define SP_M_GEN_CLK_SEL		BIT(0)
198 
199 /* AUX Channel Access Status Register */
200 #define SP_AUX_CH_STATUS_REG		0xe0
201 #define SP_AUX_STATUS			0x0f
202 
203 /* AUX Channel DEFER Control Register */
204 #define SP_AUX_DEFER_CTRL_REG		0xe2
205 #define SP_DEFER_CTRL_EN		BIT(7)
206 
207 /* DP Buffer Data Count Register */
208 #define SP_BUF_DATA_COUNT_REG		0xe4
209 #define SP_BUF_DATA_COUNT_MASK		0x1f
210 #define SP_BUF_CLR			BIT(7)
211 
212 /* DP AUX Channel Control Register 1 */
213 #define SP_DP_AUX_CH_CTRL1_REG		0xe5
214 #define SP_AUX_TX_COMM_MASK		0x0f
215 #define SP_AUX_LENGTH_MASK		0xf0
216 #define SP_AUX_LENGTH_SHIFT		4
217 
218 /* DP AUX CH Address Register 0 */
219 #define SP_AUX_ADDR_7_0_REG		0xe6
220 
221 /* DP AUX CH Address Register 1 */
222 #define SP_AUX_ADDR_15_8_REG		0xe7
223 
224 /* DP AUX CH Address Register 2 */
225 #define SP_AUX_ADDR_19_16_REG		0xe8
226 #define SP_AUX_ADDR_19_16_MASK		0x0f
227 
228 /* DP AUX Channel Control Register 2 */
229 #define SP_DP_AUX_CH_CTRL2_REG		0xe9
230 #define SP_AUX_SEL_RXCM			BIT(6)
231 #define SP_AUX_CHSEL			BIT(3)
232 #define SP_AUX_PN_INV			BIT(2)
233 #define SP_ADDR_ONLY			BIT(1)
234 #define SP_AUX_EN			BIT(0)
235 
236 /* DP Video Stream Control InfoFrame Register */
237 #define SP_DP_3D_VSC_CTRL_REG		0xea
238 #define SP_INFO_FRAME_VSC_EN		BIT(0)
239 
240 /* DP Video Stream Data Byte 1 Register */
241 #define SP_DP_VSC_DB1_REG		0xeb
242 
243 /* DP AUX Channel Control Register 3 */
244 #define SP_DP_AUX_CH_CTRL3_REG		0xec
245 #define SP_WAIT_COUNTER_7_0_MASK	0xff
246 
247 /* DP AUX Channel Control Register 4 */
248 #define SP_DP_AUX_CH_CTRL4_REG		0xed
249 
250 /* DP AUX Buffer Data Registers */
251 #define SP_DP_BUF_DATA0_REG		0xf0
252 
253 ssize_t anx_dp_aux_transfer(struct regmap *map_dptx,
254 				struct drm_dp_aux_msg *msg);
255 
256 #endif
257