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25 #ifndef DC_DDC_TYPES_H_
26 #define DC_DDC_TYPES_H_
28 enum aux_transaction_type {
29 AUX_TRANSACTION_TYPE_DP,
30 AUX_TRANSACTION_TYPE_I2C
34 enum i2caux_transaction_action {
35 I2CAUX_TRANSACTION_ACTION_I2C_WRITE = 0x00,
36 I2CAUX_TRANSACTION_ACTION_I2C_READ = 0x10,
37 I2CAUX_TRANSACTION_ACTION_I2C_STATUS_REQUEST = 0x20,
39 I2CAUX_TRANSACTION_ACTION_I2C_WRITE_MOT = 0x40,
40 I2CAUX_TRANSACTION_ACTION_I2C_READ_MOT = 0x50,
41 I2CAUX_TRANSACTION_ACTION_I2C_STATUS_REQUEST_MOT = 0x60,
43 I2CAUX_TRANSACTION_ACTION_DP_WRITE = 0x80,
44 I2CAUX_TRANSACTION_ACTION_DP_READ = 0x90
47 enum aux_channel_operation_result {
48 AUX_CHANNEL_OPERATION_SUCCEEDED,
49 AUX_CHANNEL_OPERATION_FAILED_REASON_UNKNOWN,
50 AUX_CHANNEL_OPERATION_FAILED_INVALID_REPLY,
51 AUX_CHANNEL_OPERATION_FAILED_TIMEOUT,
52 AUX_CHANNEL_OPERATION_FAILED_HPD_DISCON
56 struct aux_request_transaction_data {
57 enum aux_transaction_type type;
58 enum i2caux_transaction_action action;
59 /* 20-bit AUX channel transaction address */
61 /* delay, in 100-microsecond units */
67 enum aux_transaction_reply {
68 AUX_TRANSACTION_REPLY_AUX_ACK = 0x00,
69 AUX_TRANSACTION_REPLY_AUX_NACK = 0x01,
70 AUX_TRANSACTION_REPLY_AUX_DEFER = 0x02,
71 AUX_TRANSACTION_REPLY_I2C_OVER_AUX_NACK = 0x04,
72 AUX_TRANSACTION_REPLY_I2C_OVER_AUX_DEFER = 0x08,
74 AUX_TRANSACTION_REPLY_I2C_ACK = 0x00,
75 AUX_TRANSACTION_REPLY_I2C_NACK = 0x10,
76 AUX_TRANSACTION_REPLY_I2C_DEFER = 0x20,
78 AUX_TRANSACTION_REPLY_HPD_DISCON = 0x40,
80 AUX_TRANSACTION_REPLY_INVALID = 0xFF
83 struct aux_reply_transaction_data {
84 enum aux_transaction_reply status;
96 enum i2c_command_engine {
97 I2C_COMMAND_ENGINE_DEFAULT,
98 I2C_COMMAND_ENGINE_SW,
103 struct i2c_payload *payloads;
104 uint8_t number_of_payloads;
106 enum i2c_command_engine engine;
109 * zero means "use default value" */
113 struct gpio_ddc_hw_info {
115 uint32_t ddc_channel;
119 struct gpio *pin_data;
120 struct gpio *pin_clock;
121 struct gpio_ddc_hw_info hw_info;
122 struct dc_context *ctx;
127 uint32_t DP_SKIP_POWER_OFF:1;
128 uint32_t DP_AUX_POWER_UP_WA_DELAY:1;
134 uint8_t EDID_QUERY_DONE_ONCE:1;
135 uint8_t IS_INTERNAL_DISPLAY:1;
136 uint8_t FORCE_READ_REPEATED_START:1;
137 uint8_t EDID_STRESS_READ:1;
141 enum ddc_transaction_type {
142 DDC_TRANSACTION_TYPE_NONE = 0,
143 DDC_TRANSACTION_TYPE_I2C,
144 DDC_TRANSACTION_TYPE_I2C_OVER_AUX,
145 DDC_TRANSACTION_TYPE_I2C_OVER_AUX_WITH_DEFER,
146 DDC_TRANSACTION_TYPE_I2C_OVER_AUX_RETRY_DEFER
149 enum display_dongle_type {
150 DISPLAY_DONGLE_NONE = 0,
151 /* Active converter types*/
152 DISPLAY_DONGLE_DP_VGA_CONVERTER,
153 DISPLAY_DONGLE_DP_DVI_CONVERTER,
154 DISPLAY_DONGLE_DP_HDMI_CONVERTER,
155 /* DP-HDMI/DVI passive dongles (Type 1 and Type 2)*/
156 DISPLAY_DONGLE_DP_DVI_DONGLE,
157 DISPLAY_DONGLE_DP_HDMI_DONGLE,
158 /* Other types of dongle*/
159 DISPLAY_DONGLE_DP_HDMI_MISMATCHED_DONGLE,
164 struct ddc_flags flags;
166 enum ddc_transaction_type transaction_type;
167 enum display_dongle_type dongle_type;
168 struct dc_context *ctx;
169 struct dc_link *link;
172 uint32_t edid_buf_len;
173 uint8_t edid_buf[DC_MAX_EDID_BUFFER_SIZE];
176 #endif /* DC_DDC_TYPES_H_ */