1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * ATI/AMD codec support
17 #define is_amdhdmi_rev3_or_later(codec) \  argument
18 	((codec)->core.vendor_id == 0x1002aa01 && \
19 	 ((codec)->core.revision_id & 0xff00) >= 0x0300)
20 #define has_amd_full_remap_support(codec) is_amdhdmi_rev3_or_later(codec)  argument
23 #define ATI_VERB_SET_CHANNEL_ALLOCATION	0x771
24 #define ATI_VERB_SET_DOWNMIX_INFO	0x772
25 #define ATI_VERB_SET_MULTICHANNEL_01	0x777
26 #define ATI_VERB_SET_MULTICHANNEL_23	0x778
27 #define ATI_VERB_SET_MULTICHANNEL_45	0x779
28 #define ATI_VERB_SET_MULTICHANNEL_67	0x77a
29 #define ATI_VERB_SET_HBR_CONTROL	0x77c
30 #define ATI_VERB_SET_MULTICHANNEL_1	0x785
31 #define ATI_VERB_SET_MULTICHANNEL_3	0x786
32 #define ATI_VERB_SET_MULTICHANNEL_5	0x787
33 #define ATI_VERB_SET_MULTICHANNEL_7	0x788
34 #define ATI_VERB_SET_MULTICHANNEL_MODE	0x789
35 #define ATI_VERB_GET_CHANNEL_ALLOCATION	0xf71
36 #define ATI_VERB_GET_DOWNMIX_INFO	0xf72
37 #define ATI_VERB_GET_MULTICHANNEL_01	0xf77
38 #define ATI_VERB_GET_MULTICHANNEL_23	0xf78
39 #define ATI_VERB_GET_MULTICHANNEL_45	0xf79
40 #define ATI_VERB_GET_MULTICHANNEL_67	0xf7a
41 #define ATI_VERB_GET_HBR_CONTROL	0xf7c
42 #define ATI_VERB_GET_MULTICHANNEL_1	0xf85
43 #define ATI_VERB_GET_MULTICHANNEL_3	0xf86
44 #define ATI_VERB_GET_MULTICHANNEL_5	0xf87
45 #define ATI_VERB_GET_MULTICHANNEL_7	0xf88
46 #define ATI_VERB_GET_MULTICHANNEL_MODE	0xf89
49 #define ATI_VERB_SET_RAMP_RATE		0x770
50 #define ATI_VERB_GET_RAMP_RATE		0xf70
52 #define ATI_OUT_ENABLE 0x1
54 #define ATI_MULTICHANNEL_MODE_PAIRED	0
57 #define ATI_HBR_CAPABLE 0x01
58 #define ATI_HBR_ENABLE 0x10
62 #define ATI_VERB_SET_AUDIO_DESCRIPTOR	0x776
63 #define ATI_VERB_SET_SINK_INFO_INDEX	0x780
64 #define ATI_VERB_GET_SPEAKER_ALLOCATION	0xf70
65 #define ATI_VERB_GET_AUDIO_DESCRIPTOR	0xf76
66 #define ATI_VERB_GET_AUDIO_VIDEO_DELAY	0xf7b
67 #define ATI_VERB_GET_SINK_INFO_INDEX	0xf80
68 #define ATI_VERB_GET_SINK_INFO_DATA	0xf81
70 #define ATI_SPKALLOC_SPKALLOC		0x007f
71 #define ATI_SPKALLOC_TYPE_HDMI		0x0100
72 #define ATI_SPKALLOC_TYPE_DISPLAYPORT	0x0200
75 #define ATI_AUDIODESC_CHANNELS		0x00000007
76 #define ATI_AUDIODESC_RATES		0x0000ff00
77 #define ATI_AUDIODESC_LPCM_STEREO_RATES	0xff000000
80 #define ATI_DELAY_VIDEO_LATENCY		0x000000ff
81 #define ATI_DELAY_AUDIO_LATENCY		0x0000ff00
84 	ATI_INFO_IDX_MANUFACTURER_ID	= 0,
93 static int get_eld_ati(struct hda_codec *codec, hda_nid_t nid,  in get_eld_ati()  argument
97 	int sink_desc_len = 0;  in get_eld_ati()
102 	spkalloc = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SPEAKER_ALLOCATION, 0);  in get_eld_ati()
104 	if (spkalloc <= 0) {  in get_eld_ati()
105 		codec_info(codec, "HDMI ATI/AMD: no speaker allocation for ELD\n");  in get_eld_ati()
106 		return -EINVAL;  in get_eld_ati()
109 	memset(buf, 0, ELD_FIXED_BYTES + ELD_MAX_MNL + ELD_MAX_SAD * 3);  in get_eld_ati()
112 	buf[0] = ELD_VER_CEA_861D << 3;  in get_eld_ati()
119 		buf[5] |= 0x04;  in get_eld_ati()
126 		snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_PORT_ID_LOW);  in get_eld_ati()
127 		sink_info = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);  in get_eld_ati()
130 		snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_PORT_ID_HIGH);  in get_eld_ati()
131 		sink_info = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);  in get_eld_ati()
134 		snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_MANUFACTURER_ID);  in get_eld_ati()
135 		sink_info = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);  in get_eld_ati()
138 		snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_PRODUCT_ID);  in get_eld_ati()
139 		sink_info = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);  in get_eld_ati()
142 		snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_SINK_DESC_LEN);  in get_eld_ati()
143 		sink_desc_len = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);  in get_eld_ati()
146 			codec_info(codec, "HDMI ATI/AMD: Truncating HDMI sink description with length %d\n",  in get_eld_ati()
153 		for (i = 0; i < sink_desc_len; i++) {  in get_eld_ati()
154 …snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_SINK_DESC_FIRST + i);  in get_eld_ati()
155 			buf[pos++] = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);  in get_eld_ati()
163 		snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_AUDIO_DESCRIPTOR, i << 3);  in get_eld_ati()
164 		ati_sad = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_AUDIO_DESCRIPTOR, 0);  in get_eld_ati()
166 		if (ati_sad <= 0)  in get_eld_ati()
170 			/* format is supported, copy SAD as-is */  in get_eld_ati()
171 			buf[pos++] = (ati_sad & 0x0000ff) >> 0;  in get_eld_ati()
172 			buf[pos++] = (ati_sad & 0x00ff00) >> 8;  in get_eld_ati()
173 			buf[pos++] = (ati_sad & 0xff0000) >> 16;  in get_eld_ati()
180 			buf[pos++] = ((ati_sad & 0x000000ff) & ~ATI_AUDIODESC_CHANNELS) | 0x1;  in get_eld_ati()
182 			buf[pos++] = (ati_sad & 0xff000000) >> 24;  in get_eld_ati()
183 			buf[pos++] = (ati_sad & 0x00ff0000) >> 16;  in get_eld_ati()
188 		codec_info(codec, "HDMI ATI/AMD: no audio descriptors for ELD\n");  in get_eld_ati()
189 		return -EINVAL;  in get_eld_ati()
195 	 *  0          field not valid or unknown latency  in get_eld_ati()
196 	 *  [1..251]   msecs = (x-1)*2  (max 500ms with x = 251 = 0xfb)  in get_eld_ati()
201 	 *  0          unknown or 0ms  in get_eld_ati()
202 	 *  [1..250]   msecs = x*2  (max 500ms with x = 250 = 0xfa)  in get_eld_ati()
205 	aud_synch = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_AUDIO_VIDEO_DELAY, 0);  in get_eld_ati()
210 		if (video_latency_hdmi <= 0xfb && audio_latency_hdmi <= 0xfb &&  in get_eld_ati()
212 			buf[6] = video_latency_hdmi - audio_latency_hdmi;  in get_eld_ati()
213 		/* else unknown/invalid or 0ms or video ahead of audio, so use zero */  in get_eld_ati()
217 	buf[5] |= ((pos - ELD_FIXED_BYTES - sink_desc_len) / 3) << 4;  in get_eld_ati()
219 	/* Baseline ELD block length is 4-byte aligned */  in get_eld_ati()
222 	/* Baseline ELD length (4-byte header is not counted in) */  in get_eld_ati()
223 	buf[2] = (pos - 4) / 4;  in get_eld_ati()
227 	return 0;  in get_eld_ati()
230 static int atihdmi_pin_get_eld(struct hda_codec *codec, hda_nid_t nid,  in atihdmi_pin_get_eld()  argument
233 	WARN_ON(dev_id != 0);  in atihdmi_pin_get_eld()
234 	/* call hda_eld.c ATI/AMD-specific function */  in atihdmi_pin_get_eld()
235 	return get_eld_ati(codec, nid, buf, eld_size,  in atihdmi_pin_get_eld()
236 			   is_amdhdmi_rev3_or_later(codec));  in atihdmi_pin_get_eld()
239 static void atihdmi_pin_setup_infoframe(struct hda_codec *codec,  in atihdmi_pin_setup_infoframe()  argument
243 	WARN_ON(dev_id != 0);  in atihdmi_pin_setup_infoframe()
244 	snd_hda_codec_write(codec, pin_nid, 0, ATI_VERB_SET_CHANNEL_ALLOCATION, ca);  in atihdmi_pin_setup_infoframe()
250 	 * ATI/AMD have automatic FC/LFE swap built-in  in atihdmi_paired_swap_fc_lfe()
268 	/* check that only channel pairs need to be remapped on old pre-rev3 ATI/AMD */  in atihdmi_paired_chmap_validate()
271 	for (i = 0; i < chs; ++i) {  in atihdmi_paired_chmap_validate()
279 		for (j = 0 + i % 2; j < 8; j += 2) {  in atihdmi_paired_chmap_validate()
280 			int chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j);  in atihdmi_paired_chmap_validate()
282 			if (cap->speakers[chan_idx] == mask) {  in atihdmi_paired_chmap_validate()
286 				if (i % 2 == 0 && i + 1 < chs) {  in atihdmi_paired_chmap_validate()
288 					int comp_chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j + 1);  in atihdmi_paired_chmap_validate()
290 					int comp_mask_act = cap->speakers[comp_chan_idx];  in atihdmi_paired_chmap_validate()
295 						return -EINVAL;  in atihdmi_paired_chmap_validate()
302 			return -EINVAL;  in atihdmi_paired_chmap_validate()
308 	return 0;  in atihdmi_paired_chmap_validate()
314 	struct hda_codec *codec = hdac_to_hda_codec(hdac);  in atihdmi_pin_set_slot_channel()  local
316 	int ati_channel_setup = 0;  in atihdmi_pin_set_slot_channel()
319 		return -EINVAL;  in atihdmi_pin_set_slot_channel()
321 	if (!has_amd_full_remap_support(codec)) {  in atihdmi_pin_set_slot_channel()
329 		if (hdmi_slot % 2 != 0 && stream_channel == 0xf)  in atihdmi_pin_set_slot_channel()
330 			return 0;  in atihdmi_pin_set_slot_channel()
332 		hdmi_slot -= hdmi_slot % 2;  in atihdmi_pin_set_slot_channel()
334 		if (stream_channel != 0xf)  in atihdmi_pin_set_slot_channel()
335 			stream_channel -= stream_channel % 2;  in atihdmi_pin_set_slot_channel()
338 	verb = ATI_VERB_SET_MULTICHANNEL_01 + hdmi_slot/2 + (hdmi_slot % 2) * 0x00e;  in atihdmi_pin_set_slot_channel()
340 	/* ati_channel_setup format: [7..4] = stream_channel_id, [1] = mute, [0] = enable */  in atihdmi_pin_set_slot_channel()
342 	if (stream_channel != 0xf)  in atihdmi_pin_set_slot_channel()
345 	return snd_hda_codec_write(codec, pin_nid, 0, verb, ati_channel_setup);  in atihdmi_pin_set_slot_channel()
351 	struct hda_codec *codec = hdac_to_hda_codec(hdac);  in atihdmi_pin_get_slot_channel()  local
358 		return -EINVAL;  in atihdmi_pin_get_slot_channel()
360 	if (!has_amd_full_remap_support(codec)) {  in atihdmi_pin_get_slot_channel()
362 		if (ati_asp_slot % 2 != 0) {  in atihdmi_pin_get_slot_channel()
363 			ati_asp_slot -= 1;  in atihdmi_pin_get_slot_channel()
368 	verb = ATI_VERB_GET_MULTICHANNEL_01 + ati_asp_slot/2 + (ati_asp_slot % 2) * 0x00e;  in atihdmi_pin_get_slot_channel()
370 	ati_channel_setup = snd_hda_codec_read(codec, pin_nid, 0, verb, 0);  in atihdmi_pin_get_slot_channel()
373 		return 0xf;  in atihdmi_pin_get_slot_channel()
375 	return ((ati_channel_setup & 0xf0) >> 4) + !!was_odd;  in atihdmi_pin_get_slot_channel()
386 	 * Pre-rev3 ATI/AMD codecs operate in a paired channel mode, so  in atihdmi_paired_chmap_cea_alloc_validate_get_type()
391 	int chanpairs = 0;  in atihdmi_paired_chmap_cea_alloc_validate_get_type()
393 	/* We only produce even-numbered channel count TLVs */  in atihdmi_paired_chmap_cea_alloc_validate_get_type()
394 	if ((channels % 2) != 0)  in atihdmi_paired_chmap_cea_alloc_validate_get_type()
395 		return -1;  in atihdmi_paired_chmap_cea_alloc_validate_get_type()
397 	for (c = 0; c < 7; c += 2) {  in atihdmi_paired_chmap_cea_alloc_validate_get_type()
398 		if (cap->speakers[c] || cap->speakers[c+1])  in atihdmi_paired_chmap_cea_alloc_validate_get_type()
403 		return -1;  in atihdmi_paired_chmap_cea_alloc_validate_get_type()
412 	/* produce paired maps for pre-rev3 ATI/AMD codecs */  in atihdmi_paired_cea_alloc_to_tlv_chmap()
413 	int count = 0;  in atihdmi_paired_cea_alloc_to_tlv_chmap()
416 	for (c = 7; c >= 0; c--) {  in atihdmi_paired_cea_alloc_to_tlv_chmap()
417 		int chan = 7 - atihdmi_paired_swap_fc_lfe(7 - c);  in atihdmi_paired_cea_alloc_to_tlv_chmap()
418 		int spk = cap->speakers[chan];  in atihdmi_paired_cea_alloc_to_tlv_chmap()
422 			if (cap->speakers[chan + (chan % 2 ? -1 : 1)])  in atihdmi_paired_cea_alloc_to_tlv_chmap()
434 static int atihdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,  in atihdmi_pin_hbr_setup()  argument
439 	WARN_ON(dev_id != 0);  in atihdmi_pin_hbr_setup()
441 	hbr_ctl = snd_hda_codec_read(codec, pin_nid, 0, ATI_VERB_GET_HBR_CONTROL, 0);  in atihdmi_pin_hbr_setup()
442 	if (hbr_ctl >= 0 && (hbr_ctl & ATI_HBR_CAPABLE)) {  in atihdmi_pin_hbr_setup()
448 		codec_dbg(codec,  in atihdmi_pin_hbr_setup()
449 			  "%s: NID=0x%x, %shbr-ctl=0x%x\n",  in atihdmi_pin_hbr_setup()
452 			  hbr_ctl == hbr_ctl_new ? "" : "new-",  in atihdmi_pin_hbr_setup()
456 			snd_hda_codec_write(codec, pin_nid, 0,  in atihdmi_pin_hbr_setup()
461 		return -EINVAL;  in atihdmi_pin_hbr_setup()
463 	return 0;  in atihdmi_pin_hbr_setup()
466 static int atihdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,  in atihdmi_setup_stream()  argument
470 	if (is_amdhdmi_rev3_or_later(codec)) {  in atihdmi_setup_stream()
472 		/* disable ramp-up/down for non-pcm as per AMD spec */  in atihdmi_setup_stream()
474 			ramp_rate = 0;  in atihdmi_setup_stream()
476 		snd_hda_codec_write(codec, cvt_nid, 0, ATI_VERB_SET_RAMP_RATE, ramp_rate);  in atihdmi_setup_stream()
479 	return snd_hda_hdmi_setup_stream(codec, cvt_nid, pin_nid, dev_id,  in atihdmi_setup_stream()
484 static int atihdmi_init(struct hda_codec *codec)  in atihdmi_init()  argument
486 	struct hdmi_spec *spec = codec->spec;  in atihdmi_init()
489 	err = snd_hda_hdmi_generic_init(codec);  in atihdmi_init()
494 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {  in atihdmi_init()
498 		snd_hda_codec_write(codec, per_pin->pin_nid, 0, ATI_VERB_SET_DOWNMIX_INFO, 0);  in atihdmi_init()
500 		/* enable channel-wise remap mode if supported */  in atihdmi_init()
501 		if (has_amd_full_remap_support(codec))  in atihdmi_init()
502 			snd_hda_codec_write(codec, per_pin->pin_nid, 0,  in atihdmi_init()
506 	codec->auto_runtime_pm = 1;  in atihdmi_init()
508 	return 0;  in atihdmi_init()
511 /* map from pin NID to port; port is 0-based */
515 	return pin_nid / 2 - 1;  in atihdmi_pin2port()
518 /* reverse-map from port to pin NID: see above */
519 static int atihdmi_port2pin(struct hda_codec *codec, int port)  in atihdmi_port2pin()  argument
531 static int atihdmi_probe(struct hda_codec *codec, const struct hda_device_id *id)  in atihdmi_probe()  argument
537 	err = snd_hda_hdmi_generic_probe(codec);  in atihdmi_probe()
541 	spec = codec->spec;  in atihdmi_probe()
543 	spec->static_pcm_mapping = true;  in atihdmi_probe()
545 	spec->ops.pin_get_eld = atihdmi_pin_get_eld;  in atihdmi_probe()
546 	spec->ops.pin_setup_infoframe = atihdmi_pin_setup_infoframe;  in atihdmi_probe()
547 	spec->ops.pin_hbr_setup = atihdmi_pin_hbr_setup;  in atihdmi_probe()
548 	spec->ops.setup_stream = atihdmi_setup_stream;  in atihdmi_probe()
550 	spec->chmap.ops.pin_get_slot_channel = atihdmi_pin_get_slot_channel;  in atihdmi_probe()
551 	spec->chmap.ops.pin_set_slot_channel = atihdmi_pin_set_slot_channel;  in atihdmi_probe()
553 	if (!has_amd_full_remap_support(codec)) {  in atihdmi_probe()
554 		/* override to ATI/AMD-specific versions with pairwise mapping */  in atihdmi_probe()
555 		spec->chmap.ops.chmap_cea_alloc_validate_get_type =  in atihdmi_probe()
557 		spec->chmap.ops.cea_alloc_to_tlv_chmap =  in atihdmi_probe()
559 		spec->chmap.ops.chmap_validate = atihdmi_paired_chmap_validate;  in atihdmi_probe()
563 	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {  in atihdmi_probe()
565 		per_cvt->channels_max = max(per_cvt->channels_max, 8u);  in atihdmi_probe()
566 		per_cvt->rates |= SUPPORTED_RATES;  in atihdmi_probe()
567 		per_cvt->formats |= SUPPORTED_FORMATS;  in atihdmi_probe()
568 		per_cvt->maxbps = max(per_cvt->maxbps, 24u);  in atihdmi_probe()
571 	spec->chmap.channels_max = max(spec->chmap.channels_max, 8u);  in atihdmi_probe()
574 	 * the link-down as is.  Tell the core to allow it.  in atihdmi_probe()
576 	codec->link_down_at_suspend = 1;  in atihdmi_probe()
578 	snd_hda_hdmi_acomp_init(codec, &atihdmi_audio_ops, atihdmi_port2pin);  in atihdmi_probe()
580 	return 0;  in atihdmi_probe()
598 	HDA_CODEC_ID(0x1002793c, "RS600 HDMI"),
599 	HDA_CODEC_ID(0x10027919, "RS600 HDMI"),
600 	HDA_CODEC_ID(0x1002791a, "RS690/780 HDMI"),
601 	HDA_CODEC_ID(0x1002aa01, "R6xx HDMI"),
607 MODULE_DESCRIPTION("AMD/ATI HDMI HD-audio codec");