1 /*
2  * Copyright 2019 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25 
26 #ifndef _DMUB_CMD_H_
27 #define _DMUB_CMD_H_
28 
29 #if defined(_TEST_HARNESS) || defined(FPGA_USB4)
30 #include "dmub_fw_types.h"
31 #include "include_legacy/atomfirmware.h"
32 
33 #if defined(_TEST_HARNESS)
34 #include <string.h>
35 #endif
36 #else
37 
38 #include <asm/byteorder.h>
39 #include <linux/types.h>
40 #include <linux/string.h>
41 #include <linux/delay.h>
42 #include <stdarg.h>
43 
44 #include "atomfirmware.h"
45 
46 #endif // defined(_TEST_HARNESS) || defined(FPGA_USB4)
47 
48 /* Firmware versioning. */
49 #ifdef DMUB_EXPOSE_VERSION
50 #define DMUB_FW_VERSION_GIT_HASH 0x6444c02e7
51 #define DMUB_FW_VERSION_MAJOR 0
52 #define DMUB_FW_VERSION_MINOR 0
53 #define DMUB_FW_VERSION_REVISION 51
54 #define DMUB_FW_VERSION_TEST 0
55 #define DMUB_FW_VERSION_VBIOS 0
56 #define DMUB_FW_VERSION_HOTFIX 0
57 #define DMUB_FW_VERSION_UCODE (((DMUB_FW_VERSION_MAJOR & 0xFF) << 24) | \
58 		((DMUB_FW_VERSION_MINOR & 0xFF) << 16) | \
59 		((DMUB_FW_VERSION_REVISION & 0xFF) << 8) | \
60 		((DMUB_FW_VERSION_TEST & 0x1) << 7) | \
61 		((DMUB_FW_VERSION_VBIOS & 0x1) << 6) | \
62 		(DMUB_FW_VERSION_HOTFIX & 0x3F))
63 
64 #endif
65 
66 //<DMUB_TYPES>==================================================================
67 /* Basic type definitions. */
68 
69 #define __forceinline inline
70 
71 #define SET_ABM_PIPE_GRADUALLY_DISABLE           0
72 #define SET_ABM_PIPE_IMMEDIATELY_DISABLE         255
73 #define SET_ABM_PIPE_IMMEDIATE_KEEP_GAIN_DISABLE 254
74 #define SET_ABM_PIPE_NORMAL                      1
75 
76 /* Maximum number of streams on any ASIC. */
77 #define DMUB_MAX_STREAMS 6
78 
79 /* Maximum number of planes on any ASIC. */
80 #define DMUB_MAX_PLANES 6
81 
82 #ifndef PHYSICAL_ADDRESS_LOC
83 #define PHYSICAL_ADDRESS_LOC union large_integer
84 #endif
85 
86 #ifndef dmub_memcpy
87 #define dmub_memcpy(dest, source, bytes) memcpy((dest), (source), (bytes))
88 #endif
89 
90 #ifndef dmub_memset
91 #define dmub_memset(dest, val, bytes) memset((dest), (val), (bytes))
92 #endif
93 
94 #if defined(__cplusplus)
95 extern "C" {
96 #endif
97 
98 #ifndef dmub_udelay
99 #define dmub_udelay(microseconds) udelay(microseconds)
100 #endif
101 
102 union dmub_addr {
103 	struct {
104 		uint32_t low_part;
105 		uint32_t high_part;
106 	} u;
107 	uint64_t quad_part;
108 };
109 
110 union dmub_psr_debug_flags {
111 	struct {
112 		uint32_t visual_confirm : 1;
113 		uint32_t use_hw_lock_mgr : 1;
114 		uint32_t log_line_nums : 1;
115 	} bitfields;
116 
117 	uint32_t u32All;
118 };
119 
120 struct dmub_feature_caps {
121 	uint8_t psr;
122 	uint8_t reserved[7];
123 };
124 
125 #if defined(__cplusplus)
126 }
127 #endif
128 
129 //==============================================================================
130 //</DMUB_TYPES>=================================================================
131 //==============================================================================
132 //< DMUB_META>==================================================================
133 //==============================================================================
134 #pragma pack(push, 1)
135 
136 /* Magic value for identifying dmub_fw_meta_info */
137 #define DMUB_FW_META_MAGIC 0x444D5542
138 
139 /* Offset from the end of the file to the dmub_fw_meta_info */
140 #define DMUB_FW_META_OFFSET 0x24
141 
142 /**
143  * struct dmub_fw_meta_info - metadata associated with fw binary
144  *
145  * NOTE: This should be considered a stable API. Fields should
146  *       not be repurposed or reordered. New fields should be
147  *       added instead to extend the structure.
148  *
149  * @magic_value: magic value identifying DMUB firmware meta info
150  * @fw_region_size: size of the firmware state region
151  * @trace_buffer_size: size of the tracebuffer region
152  * @fw_version: the firmware version information
153  * @dal_fw: 1 if the firmware is DAL
154  */
155 struct dmub_fw_meta_info {
156 	uint32_t magic_value;
157 	uint32_t fw_region_size;
158 	uint32_t trace_buffer_size;
159 	uint32_t fw_version;
160 	uint8_t dal_fw;
161 	uint8_t reserved[3];
162 };
163 
164 /* Ensure that the structure remains 64 bytes. */
165 union dmub_fw_meta {
166 	struct dmub_fw_meta_info info;
167 	uint8_t reserved[64];
168 };
169 
170 #pragma pack(pop)
171 
172 //==============================================================================
173 //< DMUB_STATUS>================================================================
174 //==============================================================================
175 
176 /**
177  * DMCUB scratch registers can be used to determine firmware status.
178  * Current scratch register usage is as follows:
179  *
180  * SCRATCH0: FW Boot Status register
181  * SCRATCH15: FW Boot Options register
182  */
183 
184 /* Register bit definition for SCRATCH0 */
185 union dmub_fw_boot_status {
186 	struct {
187 		uint32_t dal_fw : 1;
188 		uint32_t mailbox_rdy : 1;
189 		uint32_t optimized_init_done : 1;
190 		uint32_t restore_required : 1;
191 	} bits;
192 	uint32_t all;
193 };
194 
195 enum dmub_fw_boot_status_bit {
196 	DMUB_FW_BOOT_STATUS_BIT_DAL_FIRMWARE = (1 << 0),
197 	DMUB_FW_BOOT_STATUS_BIT_MAILBOX_READY = (1 << 1),
198 	DMUB_FW_BOOT_STATUS_BIT_OPTIMIZED_INIT_DONE = (1 << 2),
199 	DMUB_FW_BOOT_STATUS_BIT_RESTORE_REQUIRED = (1 << 3),
200 };
201 
202 /* Register bit definition for SCRATCH15 */
203 union dmub_fw_boot_options {
204 	struct {
205 		uint32_t pemu_env : 1;
206 		uint32_t fpga_env : 1;
207 		uint32_t optimized_init : 1;
208 		uint32_t skip_phy_access : 1;
209 		uint32_t disable_clk_gate: 1;
210 		uint32_t skip_phy_init_panel_sequence: 1;
211 		uint32_t reserved : 26;
212 	} bits;
213 	uint32_t all;
214 };
215 
216 enum dmub_fw_boot_options_bit {
217 	DMUB_FW_BOOT_OPTION_BIT_PEMU_ENV = (1 << 0),
218 	DMUB_FW_BOOT_OPTION_BIT_FPGA_ENV = (1 << 1),
219 	DMUB_FW_BOOT_OPTION_BIT_OPTIMIZED_INIT_DONE = (1 << 2),
220 };
221 
222 //==============================================================================
223 //</DMUB_STATUS>================================================================
224 //==============================================================================
225 //< DMUB_VBIOS>=================================================================
226 //==============================================================================
227 
228 /*
229  * Command IDs should be treated as stable ABI.
230  * Do not reuse or modify IDs.
231  */
232 
233 enum dmub_cmd_vbios_type {
234 	DMUB_CMD__VBIOS_DIGX_ENCODER_CONTROL = 0,
235 	DMUB_CMD__VBIOS_DIG1_TRANSMITTER_CONTROL = 1,
236 	DMUB_CMD__VBIOS_SET_PIXEL_CLOCK = 2,
237 	DMUB_CMD__VBIOS_ENABLE_DISP_POWER_GATING = 3,
238 	DMUB_CMD__VBIOS_LVTMA_CONTROL = 15,
239 };
240 
241 //==============================================================================
242 //</DMUB_VBIOS>=================================================================
243 //==============================================================================
244 //< DMUB_GPINT>=================================================================
245 //==============================================================================
246 
247 /**
248  * The shifts and masks below may alternatively be used to format and read
249  * the command register bits.
250  */
251 
252 #define DMUB_GPINT_DATA_PARAM_MASK 0xFFFF
253 #define DMUB_GPINT_DATA_PARAM_SHIFT 0
254 
255 #define DMUB_GPINT_DATA_COMMAND_CODE_MASK 0xFFF
256 #define DMUB_GPINT_DATA_COMMAND_CODE_SHIFT 16
257 
258 #define DMUB_GPINT_DATA_STATUS_MASK 0xF
259 #define DMUB_GPINT_DATA_STATUS_SHIFT 28
260 
261 /**
262  * Command responses.
263  */
264 
265 #define DMUB_GPINT__STOP_FW_RESPONSE 0xDEADDEAD
266 
267 /**
268  * The register format for sending a command via the GPINT.
269  */
270 union dmub_gpint_data_register {
271 	struct {
272 		uint32_t param : 16;
273 		uint32_t command_code : 12;
274 		uint32_t status : 4;
275 	} bits;
276 	uint32_t all;
277 };
278 
279 /*
280  * Command IDs should be treated as stable ABI.
281  * Do not reuse or modify IDs.
282  */
283 
284 enum dmub_gpint_command {
285 	DMUB_GPINT__INVALID_COMMAND = 0,
286 	DMUB_GPINT__GET_FW_VERSION = 1,
287 	DMUB_GPINT__STOP_FW = 2,
288 	DMUB_GPINT__GET_PSR_STATE = 7,
289 	/**
290 	 * DESC: Notifies DMCUB of the currently active streams.
291 	 * ARGS: Stream mask, 1 bit per active stream index.
292 	 */
293 	DMUB_GPINT__IDLE_OPT_NOTIFY_STREAM_MASK = 8,
294 	DMUB_GPINT__PSR_RESIDENCY = 9,
295 };
296 
297 //==============================================================================
298 //</DMUB_GPINT>=================================================================
299 //==============================================================================
300 //< DMUB_CMD>===================================================================
301 //==============================================================================
302 
303 #define DMUB_RB_CMD_SIZE 64
304 #define DMUB_RB_MAX_ENTRY 128
305 #define DMUB_RB_SIZE (DMUB_RB_CMD_SIZE * DMUB_RB_MAX_ENTRY)
306 #define REG_SET_MASK 0xFFFF
307 
308 /*
309  * Command IDs should be treated as stable ABI.
310  * Do not reuse or modify IDs.
311  */
312 
313 enum dmub_cmd_type {
314 	DMUB_CMD__NULL = 0,
315 	DMUB_CMD__REG_SEQ_READ_MODIFY_WRITE = 1,
316 	DMUB_CMD__REG_SEQ_FIELD_UPDATE_SEQ = 2,
317 	DMUB_CMD__REG_SEQ_BURST_WRITE = 3,
318 	DMUB_CMD__REG_REG_WAIT = 4,
319 	DMUB_CMD__PLAT_54186_WA = 5,
320 	DMUB_CMD__QUERY_FEATURE_CAPS = 6,
321 	DMUB_CMD__PSR = 64,
322 	DMUB_CMD__MALL = 65,
323 	DMUB_CMD__ABM = 66,
324 	DMUB_CMD__HW_LOCK = 69,
325 	DMUB_CMD__DP_AUX_ACCESS = 70,
326 	DMUB_CMD__OUTBOX1_ENABLE = 71,
327 	DMUB_CMD__VBIOS = 128,
328 };
329 
330 enum dmub_out_cmd_type {
331 	DMUB_OUT_CMD__NULL = 0,
332 	DMUB_OUT_CMD__DP_AUX_REPLY = 1,
333 	DMUB_OUT_CMD__DP_HPD_NOTIFY = 2,
334 };
335 
336 #pragma pack(push, 1)
337 
338 struct dmub_cmd_header {
339 	unsigned int type : 8;
340 	unsigned int sub_type : 8;
341 	unsigned int ret_status : 1;
342 	unsigned int reserved0 : 7;
343 	unsigned int payload_bytes : 6;  /* up to 60 bytes */
344 	unsigned int reserved1 : 2;
345 };
346 
347 /*
348  * Read modify write
349  *
350  * 60 payload bytes can hold up to 5 sets of read modify writes,
351  * each take 3 dwords.
352  *
353  * number of sequences = header.payload_bytes / sizeof(struct dmub_cmd_read_modify_write_sequence)
354  *
355  * modify_mask = 0xffff'ffff means all fields are going to be updated.  in this case
356  * command parser will skip the read and we can use modify_mask = 0xffff'ffff as reg write
357  */
358 struct dmub_cmd_read_modify_write_sequence {
359 	uint32_t addr;
360 	uint32_t modify_mask;
361 	uint32_t modify_value;
362 };
363 
364 #define DMUB_READ_MODIFY_WRITE_SEQ__MAX		5
365 struct dmub_rb_cmd_read_modify_write {
366 	struct dmub_cmd_header header;  // type = DMUB_CMD__REG_SEQ_READ_MODIFY_WRITE
367 	struct dmub_cmd_read_modify_write_sequence seq[DMUB_READ_MODIFY_WRITE_SEQ__MAX];
368 };
369 
370 /*
371  * Update a register with specified masks and values sequeunce
372  *
373  * 60 payload bytes can hold address + up to 7 sets of mask/value combo, each take 2 dword
374  *
375  * number of field update sequence = (header.payload_bytes - sizeof(addr)) / sizeof(struct read_modify_write_sequence)
376  *
377  *
378  * USE CASE:
379  *   1. auto-increment register where additional read would update pointer and produce wrong result
380  *   2. toggle a bit without read in the middle
381  */
382 
383 struct dmub_cmd_reg_field_update_sequence {
384 	uint32_t modify_mask;  // 0xffff'ffff to skip initial read
385 	uint32_t modify_value;
386 };
387 
388 #define DMUB_REG_FIELD_UPDATE_SEQ__MAX		7
389 struct dmub_rb_cmd_reg_field_update_sequence {
390 	struct dmub_cmd_header header;
391 	uint32_t addr;
392 	struct dmub_cmd_reg_field_update_sequence seq[DMUB_REG_FIELD_UPDATE_SEQ__MAX];
393 };
394 
395 /*
396  * Burst write
397  *
398  * support use case such as writing out LUTs.
399  *
400  * 60 payload bytes can hold up to 14 values to write to given address
401  *
402  * number of payload = header.payload_bytes / sizeof(struct read_modify_write_sequence)
403  */
404 #define DMUB_BURST_WRITE_VALUES__MAX  14
405 struct dmub_rb_cmd_burst_write {
406 	struct dmub_cmd_header header;  // type = DMUB_CMD__REG_SEQ_BURST_WRITE
407 	uint32_t addr;
408 	uint32_t write_values[DMUB_BURST_WRITE_VALUES__MAX];
409 };
410 
411 
412 struct dmub_rb_cmd_common {
413 	struct dmub_cmd_header header;
414 	uint8_t cmd_buffer[DMUB_RB_CMD_SIZE - sizeof(struct dmub_cmd_header)];
415 };
416 
417 struct dmub_cmd_reg_wait_data {
418 	uint32_t addr;
419 	uint32_t mask;
420 	uint32_t condition_field_value;
421 	uint32_t time_out_us;
422 };
423 
424 struct dmub_rb_cmd_reg_wait {
425 	struct dmub_cmd_header header;
426 	struct dmub_cmd_reg_wait_data reg_wait;
427 };
428 
429 struct dmub_cmd_PLAT_54186_wa {
430 	uint32_t DCSURF_SURFACE_CONTROL;
431 	uint32_t DCSURF_PRIMARY_SURFACE_ADDRESS_HIGH;
432 	uint32_t DCSURF_PRIMARY_SURFACE_ADDRESS;
433 	uint32_t DCSURF_PRIMARY_SURFACE_ADDRESS_HIGH_C;
434 	uint32_t DCSURF_PRIMARY_SURFACE_ADDRESS_C;
435 	struct {
436 		uint8_t hubp_inst : 4;
437 		uint8_t tmz_surface : 1;
438 		uint8_t immediate :1;
439 		uint8_t vmid : 4;
440 		uint8_t grph_stereo : 1;
441 		uint32_t reserved : 21;
442 	} flip_params;
443 	uint32_t reserved[9];
444 };
445 
446 struct dmub_rb_cmd_PLAT_54186_wa {
447 	struct dmub_cmd_header header;
448 	struct dmub_cmd_PLAT_54186_wa flip;
449 };
450 
451 struct dmub_rb_cmd_mall {
452 	struct dmub_cmd_header header;
453 	union dmub_addr cursor_copy_src;
454 	union dmub_addr cursor_copy_dst;
455 	uint32_t tmr_delay;
456 	uint32_t tmr_scale;
457 	uint16_t cursor_width;
458 	uint16_t cursor_pitch;
459 	uint16_t cursor_height;
460 	uint8_t cursor_bpp;
461 	uint8_t debug_bits;
462 
463 	uint8_t reserved1;
464 	uint8_t reserved2;
465 };
466 
467 struct dmub_cmd_digx_encoder_control_data {
468 	union dig_encoder_control_parameters_v1_5 dig;
469 };
470 
471 struct dmub_rb_cmd_digx_encoder_control {
472 	struct dmub_cmd_header header;
473 	struct dmub_cmd_digx_encoder_control_data encoder_control;
474 };
475 
476 struct dmub_cmd_set_pixel_clock_data {
477 	struct set_pixel_clock_parameter_v1_7 clk;
478 };
479 
480 struct dmub_rb_cmd_set_pixel_clock {
481 	struct dmub_cmd_header header;
482 	struct dmub_cmd_set_pixel_clock_data pixel_clock;
483 };
484 
485 struct dmub_cmd_enable_disp_power_gating_data {
486 	struct enable_disp_power_gating_parameters_v2_1 pwr;
487 };
488 
489 struct dmub_rb_cmd_enable_disp_power_gating {
490 	struct dmub_cmd_header header;
491 	struct dmub_cmd_enable_disp_power_gating_data power_gating;
492 };
493 
494 struct dmub_dig_transmitter_control_data_v1_7 {
495 	uint8_t phyid; /**< 0=UNIPHYA, 1=UNIPHYB, 2=UNIPHYC, 3=UNIPHYD, 4=UNIPHYE, 5=UNIPHYF */
496 	uint8_t action; /**< Defined as ATOM_TRANSMITER_ACTION_xxx */
497 	union {
498 		uint8_t digmode; /**< enum atom_encode_mode_def */
499 		uint8_t dplaneset; /**< DP voltage swing and pre-emphasis value, "DP_LANE_SET__xDB_y_zV" */
500 	} mode_laneset;
501 	uint8_t lanenum; /**< Number of lanes */
502 	union {
503 		uint32_t symclk_10khz; /**< Symbol Clock in 10Khz */
504 	} symclk_units;
505 	uint8_t hpdsel; /**< =1: HPD1, =2: HPD2, ..., =6: HPD6, =0: HPD is not assigned */
506 	uint8_t digfe_sel; /**< DIG front-end selection, bit0 means DIG0 FE is enabled */
507 	uint8_t connobj_id; /**< Connector Object Id defined in ObjectId.h */
508 	uint8_t reserved0; /**< For future use */
509 	uint8_t reserved1; /**< For future use */
510 	uint8_t reserved2[3]; /**< For future use */
511 	uint32_t reserved3[11]; /**< For future use */
512 };
513 
514 union dmub_cmd_dig1_transmitter_control_data {
515 	struct dig_transmitter_control_parameters_v1_6 dig;
516 	struct dmub_dig_transmitter_control_data_v1_7 dig_v1_7;
517 };
518 
519 struct dmub_rb_cmd_dig1_transmitter_control {
520 	struct dmub_cmd_header header;
521 	union dmub_cmd_dig1_transmitter_control_data transmitter_control;
522 };
523 
524 struct dmub_rb_cmd_dpphy_init {
525 	struct dmub_cmd_header header;
526 	uint8_t reserved[60];
527 };
528 
529 enum dp_aux_request_action {
530 	DP_AUX_REQ_ACTION_I2C_WRITE		= 0x00,
531 	DP_AUX_REQ_ACTION_I2C_READ		= 0x10,
532 	DP_AUX_REQ_ACTION_I2C_STATUS_REQ	= 0x20,
533 	DP_AUX_REQ_ACTION_I2C_WRITE_MOT		= 0x40,
534 	DP_AUX_REQ_ACTION_I2C_READ_MOT		= 0x50,
535 	DP_AUX_REQ_ACTION_I2C_STATUS_REQ_MOT	= 0x60,
536 	DP_AUX_REQ_ACTION_DPCD_WRITE		= 0x80,
537 	DP_AUX_REQ_ACTION_DPCD_READ		= 0x90
538 };
539 
540 enum aux_return_code_type {
541 	AUX_RET_SUCCESS = 0,
542 	AUX_RET_ERROR_UNKNOWN,
543 	AUX_RET_ERROR_INVALID_REPLY,
544 	AUX_RET_ERROR_TIMEOUT,
545 	AUX_RET_ERROR_HPD_DISCON,
546 	AUX_RET_ERROR_ENGINE_ACQUIRE,
547 	AUX_RET_ERROR_INVALID_OPERATION,
548 	AUX_RET_ERROR_PROTOCOL_ERROR,
549 };
550 
551 enum aux_channel_type {
552 	AUX_CHANNEL_LEGACY_DDC,
553 	AUX_CHANNEL_DPIA
554 };
555 
556 /* DP AUX command */
557 struct aux_transaction_parameters {
558 	uint8_t is_i2c_over_aux;
559 	uint8_t action;
560 	uint8_t length;
561 	uint8_t pad;
562 	uint32_t address;
563 	uint8_t data[16];
564 };
565 
566 struct dmub_cmd_dp_aux_control_data {
567 	uint32_t handle;
568 	uint8_t instance;
569 	uint8_t sw_crc_enabled;
570 	uint16_t timeout;
571 	enum aux_channel_type type;
572 	struct aux_transaction_parameters dpaux;
573 };
574 
575 struct dmub_rb_cmd_dp_aux_access {
576 	struct dmub_cmd_header header;
577 	struct dmub_cmd_dp_aux_control_data aux_control;
578 };
579 
580 struct dmub_rb_cmd_outbox1_enable {
581 	struct dmub_cmd_header header;
582 	uint32_t enable;
583 };
584 
585 /* DP AUX Reply command - OutBox Cmd */
586 struct aux_reply_data {
587 	uint8_t command;
588 	uint8_t length;
589 	uint8_t pad[2];
590 	uint8_t data[16];
591 };
592 
593 struct aux_reply_control_data {
594 	uint32_t handle;
595 	uint8_t instance;
596 	uint8_t result;
597 	uint16_t pad;
598 };
599 
600 struct dmub_rb_cmd_dp_aux_reply {
601 	struct dmub_cmd_header header;
602 	struct aux_reply_control_data control;
603 	struct aux_reply_data reply_data;
604 };
605 
606 /* DP HPD Notify command - OutBox Cmd */
607 enum dp_hpd_type {
608 	DP_HPD = 0,
609 	DP_IRQ
610 };
611 
612 enum dp_hpd_status {
613 	DP_HPD_UNPLUG = 0,
614 	DP_HPD_PLUG
615 };
616 
617 struct dp_hpd_data {
618 	uint8_t instance;
619 	uint8_t hpd_type;
620 	uint8_t hpd_status;
621 	uint8_t pad;
622 };
623 
624 struct dmub_rb_cmd_dp_hpd_notify {
625 	struct dmub_cmd_header header;
626 	struct dp_hpd_data hpd_data;
627 };
628 
629 /*
630  * Command IDs should be treated as stable ABI.
631  * Do not reuse or modify IDs.
632  */
633 
634 enum dmub_cmd_psr_type {
635 	DMUB_CMD__PSR_SET_VERSION		= 0,
636 	DMUB_CMD__PSR_COPY_SETTINGS		= 1,
637 	DMUB_CMD__PSR_ENABLE			= 2,
638 	DMUB_CMD__PSR_DISABLE			= 3,
639 	DMUB_CMD__PSR_SET_LEVEL			= 4,
640 	DMUB_CMD__PSR_FORCE_STATIC		= 5,
641 };
642 
643 enum psr_version {
644 	PSR_VERSION_1				= 0,
645 	PSR_VERSION_UNSUPPORTED			= 0xFFFFFFFF,
646 };
647 
648 enum dmub_cmd_mall_type {
649 	DMUB_CMD__MALL_ACTION_ALLOW = 0,
650 	DMUB_CMD__MALL_ACTION_DISALLOW = 1,
651 	DMUB_CMD__MALL_ACTION_COPY_CURSOR = 2,
652 	DMUB_CMD__MALL_ACTION_NO_DF_REQ = 3,
653 };
654 
655 struct dmub_cmd_psr_copy_settings_data {
656 	union dmub_psr_debug_flags debug;
657 	uint16_t psr_level;
658 	uint8_t dpp_inst;
659 	/* opp_inst and mpcc_inst will not be used in dmub fw,
660 	 * dmub fw will get active opp by reading odm registers.
661 	 */
662 	uint8_t mpcc_inst;
663 	uint8_t opp_inst;
664 
665 	uint8_t otg_inst;
666 	uint8_t digfe_inst;
667 	uint8_t digbe_inst;
668 	uint8_t dpphy_inst;
669 	uint8_t aux_inst;
670 	uint8_t smu_optimizations_en;
671 	uint8_t frame_delay;
672 	uint8_t frame_cap_ind;
673 	uint8_t pad[2];
674 	uint8_t multi_disp_optimizations_en;
675 	uint16_t init_sdp_deadline;
676 	uint16_t pad2;
677 	uint32_t line_time_in_us;
678 };
679 
680 struct dmub_rb_cmd_psr_copy_settings {
681 	struct dmub_cmd_header header;
682 	struct dmub_cmd_psr_copy_settings_data psr_copy_settings_data;
683 };
684 
685 struct dmub_cmd_psr_set_level_data {
686 	uint16_t psr_level;
687 	uint8_t pad[2];
688 };
689 
690 struct dmub_rb_cmd_psr_set_level {
691 	struct dmub_cmd_header header;
692 	struct dmub_cmd_psr_set_level_data psr_set_level_data;
693 };
694 
695 struct dmub_rb_cmd_psr_enable {
696 	struct dmub_cmd_header header;
697 };
698 
699 struct dmub_cmd_psr_set_version_data {
700 	enum psr_version version; // PSR version 1 or 2
701 };
702 
703 struct dmub_rb_cmd_psr_set_version {
704 	struct dmub_cmd_header header;
705 	struct dmub_cmd_psr_set_version_data psr_set_version_data;
706 };
707 
708 struct dmub_rb_cmd_psr_force_static {
709 	struct dmub_cmd_header header;
710 };
711 
712 union dmub_hw_lock_flags {
713 	struct {
714 		uint8_t lock_pipe   : 1;
715 		uint8_t lock_cursor : 1;
716 		uint8_t lock_dig    : 1;
717 		uint8_t triple_buffer_lock : 1;
718 	} bits;
719 
720 	uint8_t u8All;
721 };
722 
723 struct dmub_hw_lock_inst_flags {
724 	uint8_t otg_inst;
725 	uint8_t opp_inst;
726 	uint8_t dig_inst;
727 	uint8_t pad;
728 };
729 
730 enum hw_lock_client {
731 	HW_LOCK_CLIENT_DRIVER = 0,
732 	HW_LOCK_CLIENT_FW,
733 	HW_LOCK_CLIENT_INVALID = 0xFFFFFFFF,
734 };
735 
736 struct dmub_cmd_lock_hw_data {
737 	enum hw_lock_client client;
738 	struct dmub_hw_lock_inst_flags inst_flags;
739 	union dmub_hw_lock_flags hw_locks;
740 	uint8_t lock;
741 	uint8_t should_release;
742 	uint8_t pad;
743 };
744 
745 struct dmub_rb_cmd_lock_hw {
746 	struct dmub_cmd_header header;
747 	struct dmub_cmd_lock_hw_data lock_hw_data;
748 };
749 
750 enum dmub_cmd_abm_type {
751 	DMUB_CMD__ABM_INIT_CONFIG	= 0,
752 	DMUB_CMD__ABM_SET_PIPE		= 1,
753 	DMUB_CMD__ABM_SET_BACKLIGHT	= 2,
754 	DMUB_CMD__ABM_SET_LEVEL		= 3,
755 	DMUB_CMD__ABM_SET_AMBIENT_LEVEL	= 4,
756 	DMUB_CMD__ABM_SET_PWM_FRAC	= 5,
757 };
758 
759 #define NUM_AMBI_LEVEL                  5
760 #define NUM_AGGR_LEVEL                  4
761 #define NUM_POWER_FN_SEGS               8
762 #define NUM_BL_CURVE_SEGS               16
763 
764 /*
765  * Parameters for ABM2.4 algorithm.
766  * Padded explicitly to 32-bit boundary.
767  */
768 struct abm_config_table {
769 	/* Parameters for crgb conversion */
770 	uint16_t crgb_thresh[NUM_POWER_FN_SEGS];                 // 0B
771 	uint16_t crgb_offset[NUM_POWER_FN_SEGS];                 // 16B
772 	uint16_t crgb_slope[NUM_POWER_FN_SEGS];                  // 32B
773 
774 	/* Parameters for custom curve */
775 	uint16_t backlight_thresholds[NUM_BL_CURVE_SEGS];        // 48B
776 	uint16_t backlight_offsets[NUM_BL_CURVE_SEGS];           // 78B
777 
778 	uint16_t ambient_thresholds_lux[NUM_AMBI_LEVEL];         // 112B
779 	uint16_t min_abm_backlight;                              // 122B
780 
781 	uint8_t min_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];   // 124B
782 	uint8_t max_reduction[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];   // 144B
783 	uint8_t bright_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL]; // 164B
784 	uint8_t dark_pos_gain[NUM_AMBI_LEVEL][NUM_AGGR_LEVEL];   // 184B
785 	uint8_t hybrid_factor[NUM_AGGR_LEVEL];                   // 204B
786 	uint8_t contrast_factor[NUM_AGGR_LEVEL];                 // 208B
787 	uint8_t deviation_gain[NUM_AGGR_LEVEL];                  // 212B
788 	uint8_t min_knee[NUM_AGGR_LEVEL];                        // 216B
789 	uint8_t max_knee[NUM_AGGR_LEVEL];                        // 220B
790 	uint8_t iir_curve[NUM_AMBI_LEVEL];                       // 224B
791 	uint8_t pad3[3];                                         // 229B
792 
793 	uint16_t blRampReduction[NUM_AGGR_LEVEL];                // 232B
794 	uint16_t blRampStart[NUM_AGGR_LEVEL];                    // 240B
795 };
796 
797 struct dmub_cmd_abm_set_pipe_data {
798 	uint8_t otg_inst;
799 	uint8_t panel_inst;
800 	uint8_t set_pipe_option;
801 	uint8_t ramping_boundary; // TODO: Remove this
802 };
803 
804 struct dmub_rb_cmd_abm_set_pipe {
805 	struct dmub_cmd_header header;
806 	struct dmub_cmd_abm_set_pipe_data abm_set_pipe_data;
807 };
808 
809 struct dmub_cmd_abm_set_backlight_data {
810 	uint32_t frame_ramp;
811 	uint32_t backlight_user_level;
812 };
813 
814 struct dmub_rb_cmd_abm_set_backlight {
815 	struct dmub_cmd_header header;
816 	struct dmub_cmd_abm_set_backlight_data abm_set_backlight_data;
817 };
818 
819 struct dmub_cmd_abm_set_level_data {
820 	uint32_t level;
821 };
822 
823 struct dmub_rb_cmd_abm_set_level {
824 	struct dmub_cmd_header header;
825 	struct dmub_cmd_abm_set_level_data abm_set_level_data;
826 };
827 
828 struct dmub_cmd_abm_set_ambient_level_data {
829 	uint32_t ambient_lux;
830 };
831 
832 struct dmub_rb_cmd_abm_set_ambient_level {
833 	struct dmub_cmd_header header;
834 	struct dmub_cmd_abm_set_ambient_level_data abm_set_ambient_level_data;
835 };
836 
837 struct dmub_cmd_abm_set_pwm_frac_data {
838 	uint32_t fractional_pwm;
839 };
840 
841 struct dmub_rb_cmd_abm_set_pwm_frac {
842 	struct dmub_cmd_header header;
843 	struct dmub_cmd_abm_set_pwm_frac_data abm_set_pwm_frac_data;
844 };
845 
846 struct dmub_cmd_abm_init_config_data {
847 	union dmub_addr src;
848 	uint16_t bytes;
849 };
850 
851 struct dmub_rb_cmd_abm_init_config {
852 	struct dmub_cmd_header header;
853 	struct dmub_cmd_abm_init_config_data abm_init_config_data;
854 };
855 
856 struct dmub_cmd_query_feature_caps_data {
857 	 struct dmub_feature_caps feature_caps;
858 };
859 
860 struct dmub_rb_cmd_query_feature_caps {
861 	 struct dmub_cmd_header header;
862 	 struct dmub_cmd_query_feature_caps_data query_feature_caps_data;
863 };
864 
865  union dmub_rb_cmd {
866 	struct dmub_rb_cmd_lock_hw lock_hw;
867 	struct dmub_rb_cmd_read_modify_write read_modify_write;
868 	struct dmub_rb_cmd_reg_field_update_sequence reg_field_update_seq;
869 	struct dmub_rb_cmd_burst_write burst_write;
870 	struct dmub_rb_cmd_reg_wait reg_wait;
871 	struct dmub_rb_cmd_common cmd_common;
872 	struct dmub_rb_cmd_digx_encoder_control digx_encoder_control;
873 	struct dmub_rb_cmd_set_pixel_clock set_pixel_clock;
874 	struct dmub_rb_cmd_enable_disp_power_gating enable_disp_power_gating;
875 	struct dmub_rb_cmd_dpphy_init dpphy_init;
876 	struct dmub_rb_cmd_dig1_transmitter_control dig1_transmitter_control;
877 	struct dmub_rb_cmd_psr_set_version psr_set_version;
878 	struct dmub_rb_cmd_psr_copy_settings psr_copy_settings;
879 	struct dmub_rb_cmd_psr_enable psr_enable;
880 	struct dmub_rb_cmd_psr_set_level psr_set_level;
881 	struct dmub_rb_cmd_psr_force_static psr_force_static;
882 	struct dmub_rb_cmd_PLAT_54186_wa PLAT_54186_wa;
883 	struct dmub_rb_cmd_mall mall;
884 	struct dmub_rb_cmd_abm_set_pipe abm_set_pipe;
885 	struct dmub_rb_cmd_abm_set_backlight abm_set_backlight;
886 	struct dmub_rb_cmd_abm_set_level abm_set_level;
887 	struct dmub_rb_cmd_abm_set_ambient_level abm_set_ambient_level;
888 	struct dmub_rb_cmd_abm_set_pwm_frac abm_set_pwm_frac;
889 	struct dmub_rb_cmd_abm_init_config abm_init_config;
890 	struct dmub_rb_cmd_dp_aux_access dp_aux_access;
891 	struct dmub_rb_cmd_outbox1_enable outbox1_enable;
892 	struct dmub_rb_cmd_query_feature_caps query_feature_caps;
893 };
894 
895 union dmub_rb_out_cmd {
896 	struct dmub_rb_cmd_common cmd_common;
897 	struct dmub_rb_cmd_dp_aux_reply dp_aux_reply;
898 	struct dmub_rb_cmd_dp_hpd_notify dp_hpd_notify;
899 };
900 #pragma pack(pop)
901 
902 
903 //==============================================================================
904 //</DMUB_CMD>===================================================================
905 //==============================================================================
906 //< DMUB_RB>====================================================================
907 //==============================================================================
908 
909 #if defined(__cplusplus)
910 extern "C" {
911 #endif
912 
913 struct dmub_rb_init_params {
914 	void *ctx;
915 	void *base_address;
916 	uint32_t capacity;
917 	uint32_t read_ptr;
918 	uint32_t write_ptr;
919 };
920 
921 struct dmub_rb {
922 	void *base_address;
923 	uint32_t data_count;
924 	uint32_t rptr;
925 	uint32_t wrpt;
926 	uint32_t capacity;
927 
928 	void *ctx;
929 	void *dmub;
930 };
931 
932 
933 static inline bool dmub_rb_empty(struct dmub_rb *rb)
934 {
935 	return (rb->wrpt == rb->rptr);
936 }
937 
938 static inline bool dmub_rb_full(struct dmub_rb *rb)
939 {
940 	uint32_t data_count;
941 
942 	if (rb->wrpt >= rb->rptr)
943 		data_count = rb->wrpt - rb->rptr;
944 	else
945 		data_count = rb->capacity - (rb->rptr - rb->wrpt);
946 
947 	return (data_count == (rb->capacity - DMUB_RB_CMD_SIZE));
948 }
949 
950 static inline bool dmub_rb_push_front(struct dmub_rb *rb,
951 				      const union dmub_rb_cmd *cmd)
952 {
953 	uint64_t volatile *dst = (uint64_t volatile *)(rb->base_address) + rb->wrpt / sizeof(uint64_t);
954 	const uint64_t *src = (const uint64_t *)cmd;
955 	uint8_t i;
956 
957 	if (dmub_rb_full(rb))
958 		return false;
959 
960 	// copying data
961 	for (i = 0; i < DMUB_RB_CMD_SIZE / sizeof(uint64_t); i++)
962 		*dst++ = *src++;
963 
964 	rb->wrpt += DMUB_RB_CMD_SIZE;
965 
966 	if (rb->wrpt >= rb->capacity)
967 		rb->wrpt %= rb->capacity;
968 
969 	return true;
970 }
971 
972 static inline bool dmub_rb_out_push_front(struct dmub_rb *rb,
973 				      const union dmub_rb_out_cmd *cmd)
974 {
975 	uint8_t *dst = (uint8_t *)(rb->base_address) + rb->wrpt;
976 	const uint8_t *src = (uint8_t *)cmd;
977 
978 	if (dmub_rb_full(rb))
979 		return false;
980 
981 	dmub_memcpy(dst, src, DMUB_RB_CMD_SIZE);
982 
983 	rb->wrpt += DMUB_RB_CMD_SIZE;
984 
985 	if (rb->wrpt >= rb->capacity)
986 		rb->wrpt %= rb->capacity;
987 
988 	return true;
989 }
990 
991 static inline bool dmub_rb_front(struct dmub_rb *rb,
992 				 union dmub_rb_cmd  **cmd)
993 {
994 	uint8_t *rb_cmd = (uint8_t *)(rb->base_address) + rb->rptr;
995 
996 	if (dmub_rb_empty(rb))
997 		return false;
998 
999 	*cmd = (union dmub_rb_cmd *)rb_cmd;
1000 
1001 	return true;
1002 }
1003 
1004 static inline bool dmub_rb_out_front(struct dmub_rb *rb,
1005 				 union dmub_rb_out_cmd  *cmd)
1006 {
1007 	const uint64_t volatile *src = (const uint64_t volatile *)(rb->base_address) + rb->rptr / sizeof(uint64_t);
1008 	uint64_t *dst = (uint64_t *)cmd;
1009 	uint8_t i;
1010 
1011 	if (dmub_rb_empty(rb))
1012 		return false;
1013 
1014 	// copying data
1015 	for (i = 0; i < DMUB_RB_CMD_SIZE / sizeof(uint64_t); i++)
1016 		*dst++ = *src++;
1017 
1018 	return true;
1019 }
1020 
1021 static inline bool dmub_rb_pop_front(struct dmub_rb *rb)
1022 {
1023 	if (dmub_rb_empty(rb))
1024 		return false;
1025 
1026 	rb->rptr += DMUB_RB_CMD_SIZE;
1027 
1028 	if (rb->rptr >= rb->capacity)
1029 		rb->rptr %= rb->capacity;
1030 
1031 	return true;
1032 }
1033 
1034 static inline void dmub_rb_flush_pending(const struct dmub_rb *rb)
1035 {
1036 	uint32_t rptr = rb->rptr;
1037 	uint32_t wptr = rb->wrpt;
1038 
1039 	while (rptr != wptr) {
1040 		uint64_t volatile *data = (uint64_t volatile *)rb->base_address + rptr / sizeof(uint64_t);
1041 		uint8_t i;
1042 
1043 		for (i = 0; i < DMUB_RB_CMD_SIZE / sizeof(uint64_t); i++)
1044 			*data++;
1045 
1046 		rptr += DMUB_RB_CMD_SIZE;
1047 		if (rptr >= rb->capacity)
1048 			rptr %= rb->capacity;
1049 	}
1050 }
1051 
1052 static inline void dmub_rb_init(struct dmub_rb *rb,
1053 				struct dmub_rb_init_params *init_params)
1054 {
1055 	rb->base_address = init_params->base_address;
1056 	rb->capacity = init_params->capacity;
1057 	rb->rptr = init_params->read_ptr;
1058 	rb->wrpt = init_params->write_ptr;
1059 }
1060 
1061 static inline void dmub_rb_get_return_data(struct dmub_rb *rb,
1062 					   union dmub_rb_cmd *cmd)
1063 {
1064 	// Copy rb entry back into command
1065 	uint8_t *rd_ptr = (rb->rptr == 0) ?
1066 		(uint8_t *)rb->base_address + rb->capacity - DMUB_RB_CMD_SIZE :
1067 		(uint8_t *)rb->base_address + rb->rptr - DMUB_RB_CMD_SIZE;
1068 
1069 	dmub_memcpy(cmd, rd_ptr, DMUB_RB_CMD_SIZE);
1070 }
1071 
1072 #if defined(__cplusplus)
1073 }
1074 #endif
1075 
1076 //==============================================================================
1077 //</DMUB_RB>====================================================================
1078 //==============================================================================
1079 
1080 #endif /* _DMUB_CMD_H_ */
1081