2 * Header file for Analogix DP (Display Port) core interface driver.
4 * Copyright (C) 2012 Samsung Electronics Co., Ltd.
5 * Author: Jingoo Han <jg1.han@samsung.com>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
13 #ifndef _ANALOGIX_DP_CORE_H
14 #define _ANALOGIX_DP_CORE_H
16 #include <drm/drm_crtc.h>
17 #include <drm/drm_dp_helper.h>
19 #define DP_TIMEOUT_LOOP_COUNT 100
23 /* I2C EDID Chip ID, Slave Address */
24 #define I2C_EDID_DEVICE_ADDR 0x50
25 #define I2C_E_EDID_DEVICE_ADDR 0x30
27 #define EDID_BLOCK_LENGTH 0x80
28 #define EDID_HEADER_PATTERN 0x00
29 #define EDID_EXTENSION_FLAG 0x7e
30 #define EDID_CHECKSUM 0x7f
32 /* DP_MAX_LANE_COUNT */
33 #define DPCD_ENHANCED_FRAME_CAP(x) (((x) >> 7) & 0x1)
34 #define DPCD_MAX_LANE_COUNT(x) ((x) & 0x1f)
36 /* DP_LANE_COUNT_SET */
37 #define DPCD_LANE_COUNT_SET(x) ((x) & 0x1f)
39 /* DP_TRAINING_LANE0_SET */
40 #define DPCD_PRE_EMPHASIS_SET(x) (((x) & 0x3) << 3)
41 #define DPCD_PRE_EMPHASIS_GET(x) (((x) >> 3) & 0x3)
42 #define DPCD_VOLTAGE_SWING_SET(x) (((x) & 0x3) << 0)
43 #define DPCD_VOLTAGE_SWING_GET(x) (((x) >> 0) & 0x3)
45 enum link_lane_count_type
{
51 enum link_training_state
{
59 enum voltage_swing_level
{
66 enum pre_emphasis_level
{
94 enum color_coefficient
{
109 enum clock_recovery_m_value_type
{
114 enum video_timing_recognition_type
{
115 VIDEO_TIMING_FROM_CAPTURE
,
116 VIDEO_TIMING_FROM_REGISTER
119 enum analog_power_block
{
130 DP_IRQ_TYPE_HP_CABLE_IN
= BIT(0),
131 DP_IRQ_TYPE_HP_CABLE_OUT
= BIT(1),
132 DP_IRQ_TYPE_HP_CHANGE
= BIT(2),
133 DP_IRQ_TYPE_UNKNOWN
= BIT(3),
139 bool h_sync_polarity
;
140 bool v_sync_polarity
;
143 enum color_space color_space
;
144 enum dynamic_range dynamic_range
;
145 enum color_coefficient ycbcr_coeff
;
146 enum color_depth color_depth
;
149 enum link_lane_count_type max_lane_count
;
160 enum link_training_state lt_state
;
163 struct analogix_dp_device
{
164 struct drm_encoder
*encoder
;
166 struct drm_device
*drm_dev
;
167 struct drm_connector connector
;
168 struct drm_bridge
*bridge
;
171 void __iomem
*reg_base
;
173 struct video_info video_info
;
174 struct link_train link_train
;
179 unsigned char edid
[EDID_BLOCK_LENGTH
* 2];
182 struct mutex panel_lock
;
183 bool panel_is_modeset
;
185 struct analogix_dp_plat_data
*plat_data
;
188 /* analogix_dp_reg.c */
189 void analogix_dp_enable_video_mute(struct analogix_dp_device
*dp
, bool enable
);
190 void analogix_dp_stop_video(struct analogix_dp_device
*dp
);
191 void analogix_dp_lane_swap(struct analogix_dp_device
*dp
, bool enable
);
192 void analogix_dp_init_analog_param(struct analogix_dp_device
*dp
);
193 void analogix_dp_init_interrupt(struct analogix_dp_device
*dp
);
194 void analogix_dp_reset(struct analogix_dp_device
*dp
);
195 void analogix_dp_swreset(struct analogix_dp_device
*dp
);
196 void analogix_dp_config_interrupt(struct analogix_dp_device
*dp
);
197 void analogix_dp_mute_hpd_interrupt(struct analogix_dp_device
*dp
);
198 void analogix_dp_unmute_hpd_interrupt(struct analogix_dp_device
*dp
);
199 enum pll_status
analogix_dp_get_pll_lock_status(struct analogix_dp_device
*dp
);
200 void analogix_dp_set_pll_power_down(struct analogix_dp_device
*dp
, bool enable
);
201 void analogix_dp_set_analog_power_down(struct analogix_dp_device
*dp
,
202 enum analog_power_block block
,
204 void analogix_dp_init_analog_func(struct analogix_dp_device
*dp
);
205 void analogix_dp_init_hpd(struct analogix_dp_device
*dp
);
206 void analogix_dp_force_hpd(struct analogix_dp_device
*dp
);
207 enum dp_irq_type
analogix_dp_get_irq_type(struct analogix_dp_device
*dp
);
208 void analogix_dp_clear_hotplug_interrupts(struct analogix_dp_device
*dp
);
209 void analogix_dp_reset_aux(struct analogix_dp_device
*dp
);
210 void analogix_dp_init_aux(struct analogix_dp_device
*dp
);
211 int analogix_dp_get_plug_in_status(struct analogix_dp_device
*dp
);
212 void analogix_dp_enable_sw_function(struct analogix_dp_device
*dp
);
213 int analogix_dp_start_aux_transaction(struct analogix_dp_device
*dp
);
214 int analogix_dp_write_byte_to_dpcd(struct analogix_dp_device
*dp
,
215 unsigned int reg_addr
,
217 int analogix_dp_read_byte_from_dpcd(struct analogix_dp_device
*dp
,
218 unsigned int reg_addr
,
219 unsigned char *data
);
220 int analogix_dp_write_bytes_to_dpcd(struct analogix_dp_device
*dp
,
221 unsigned int reg_addr
,
223 unsigned char data
[]);
224 int analogix_dp_read_bytes_from_dpcd(struct analogix_dp_device
*dp
,
225 unsigned int reg_addr
,
227 unsigned char data
[]);
228 int analogix_dp_select_i2c_device(struct analogix_dp_device
*dp
,
229 unsigned int device_addr
,
230 unsigned int reg_addr
);
231 int analogix_dp_read_byte_from_i2c(struct analogix_dp_device
*dp
,
232 unsigned int device_addr
,
233 unsigned int reg_addr
,
235 int analogix_dp_read_bytes_from_i2c(struct analogix_dp_device
*dp
,
236 unsigned int device_addr
,
237 unsigned int reg_addr
,
239 unsigned char edid
[]);
240 void analogix_dp_set_link_bandwidth(struct analogix_dp_device
*dp
, u32 bwtype
);
241 void analogix_dp_get_link_bandwidth(struct analogix_dp_device
*dp
, u32
*bwtype
);
242 void analogix_dp_set_lane_count(struct analogix_dp_device
*dp
, u32 count
);
243 void analogix_dp_get_lane_count(struct analogix_dp_device
*dp
, u32
*count
);
244 void analogix_dp_enable_enhanced_mode(struct analogix_dp_device
*dp
,
246 void analogix_dp_set_training_pattern(struct analogix_dp_device
*dp
,
247 enum pattern_set pattern
);
248 void analogix_dp_set_lane0_pre_emphasis(struct analogix_dp_device
*dp
,
250 void analogix_dp_set_lane1_pre_emphasis(struct analogix_dp_device
*dp
,
252 void analogix_dp_set_lane2_pre_emphasis(struct analogix_dp_device
*dp
,
254 void analogix_dp_set_lane3_pre_emphasis(struct analogix_dp_device
*dp
,
256 void analogix_dp_set_lane0_link_training(struct analogix_dp_device
*dp
,
258 void analogix_dp_set_lane1_link_training(struct analogix_dp_device
*dp
,
260 void analogix_dp_set_lane2_link_training(struct analogix_dp_device
*dp
,
262 void analogix_dp_set_lane3_link_training(struct analogix_dp_device
*dp
,
264 u32
analogix_dp_get_lane0_link_training(struct analogix_dp_device
*dp
);
265 u32
analogix_dp_get_lane1_link_training(struct analogix_dp_device
*dp
);
266 u32
analogix_dp_get_lane2_link_training(struct analogix_dp_device
*dp
);
267 u32
analogix_dp_get_lane3_link_training(struct analogix_dp_device
*dp
);
268 void analogix_dp_reset_macro(struct analogix_dp_device
*dp
);
269 void analogix_dp_init_video(struct analogix_dp_device
*dp
);
271 void analogix_dp_set_video_color_format(struct analogix_dp_device
*dp
);
272 int analogix_dp_is_slave_video_stream_clock_on(struct analogix_dp_device
*dp
);
273 void analogix_dp_set_video_cr_mn(struct analogix_dp_device
*dp
,
274 enum clock_recovery_m_value_type type
,
277 void analogix_dp_set_video_timing_mode(struct analogix_dp_device
*dp
, u32 type
);
278 void analogix_dp_enable_video_master(struct analogix_dp_device
*dp
,
280 void analogix_dp_start_video(struct analogix_dp_device
*dp
);
281 int analogix_dp_is_video_stream_on(struct analogix_dp_device
*dp
);
282 void analogix_dp_config_video_slave_mode(struct analogix_dp_device
*dp
);
283 void analogix_dp_enable_scrambling(struct analogix_dp_device
*dp
);
284 void analogix_dp_disable_scrambling(struct analogix_dp_device
*dp
);
285 void analogix_dp_enable_psr_crc(struct analogix_dp_device
*dp
);
286 void analogix_dp_send_psr_spd(struct analogix_dp_device
*dp
,
287 struct edp_vsc_psr
*vsc
);
289 #endif /* _ANALOGIX_DP_CORE_H */