aboutsummaryrefslogtreecommitdiffstats
path: root/target/linux/bcm27xx/patches-5.10/950-0152-Add-HDMI1-facility-to-the-driver.patch
blob: 7a4a48aaeda464dec18c1434f020d4f35badd482 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
From 3dbfcfbd3f9a0cae3bb426954ad5fd7d193507cc Mon Sep 17 00:00:00 2001
From: James Hughes <james.hughes@raspberrypi.org>
Date: Tue, 16 Jul 2019 12:18:21 +0100
Subject: [PATCH] Add HDMI1 facility to the driver.

For generic ALSA, all you need is the bcm2835.h change, but
have also added structures for IEC958 HDMI. Not sure how to
test those.
---
 .../vc04_services/bcm2835-audio/bcm2835.c     | 29 ++++++++++++++++---
 .../vc04_services/bcm2835-audio/bcm2835.h     |  4 ++-
 2 files changed, 28 insertions(+), 5 deletions(-)

--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.c
@@ -79,7 +79,11 @@ static int bcm2835_audio_alsa_newpcm(str
 	if (err)
 		return err;
 
-	err = snd_bcm2835_new_pcm(chip, "bcm2835 IEC958/HDMI", 1, 0, 1, true);
+	err = snd_bcm2835_new_pcm(chip, "bcm2835 IEC958/HDMI", 1, AUDIO_DEST_HDMI0, 1, true);
+	if (err)
+		return err;
+
+	err = snd_bcm2835_new_pcm(chip, "bcm2835 IEC958/HDMI1", 2, AUDIO_DEST_HDMI1, 1, true);
 	if (err)
 		return err;
 
@@ -106,7 +110,7 @@ static struct bcm2835_audio_driver bcm28
 	.newctl = snd_bcm2835_new_ctl,
 };
 
-static struct bcm2835_audio_driver bcm2835_audio_hdmi = {
+static struct bcm2835_audio_driver bcm2835_audio_hdmi0 = {
 	.driver = {
 		.name = "bcm2835_hdmi",
 		.owner = THIS_MODULE,
@@ -116,7 +120,20 @@ static struct bcm2835_audio_driver bcm28
 	.minchannels = 1,
 	.newpcm = bcm2835_audio_simple_newpcm,
 	.newctl = snd_bcm2835_new_hdmi_ctl,
-	.route = AUDIO_DEST_HDMI
+	.route = AUDIO_DEST_HDMI0
+};
+
+static struct bcm2835_audio_driver bcm2835_audio_hdmi1 = {
+	.driver = {
+		.name = "bcm2835_hdmi",
+		.owner = THIS_MODULE,
+	},
+	.shortname = "bcm2835 HDMI 1",
+	.longname  = "bcm2835 HDMI 1",
+	.minchannels = 1,
+	.newpcm = bcm2835_audio_simple_newpcm,
+	.newctl = snd_bcm2835_new_hdmi_ctl,
+	.route = AUDIO_DEST_HDMI1
 };
 
 static struct bcm2835_audio_driver bcm2835_audio_headphones = {
@@ -143,7 +160,11 @@ static struct bcm2835_audio_drivers chil
 		.is_enabled = &enable_compat_alsa,
 	},
 	{
-		.audio_driver = &bcm2835_audio_hdmi,
+		.audio_driver = &bcm2835_audio_hdmi0,
+		.is_enabled = &enable_hdmi,
+	},
+	{
+		.audio_driver = &bcm2835_audio_hdmi1,
 		.is_enabled = &enable_hdmi,
 	},
 	{
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h
@@ -33,7 +33,9 @@ enum {
 enum snd_bcm2835_route {
 	AUDIO_DEST_AUTO = 0,
 	AUDIO_DEST_HEADPHONES = 1,
-	AUDIO_DEST_HDMI = 2,
+	AUDIO_DEST_HDMI = 2,  // for backwards compatibility.
+	AUDIO_DEST_HDMI0 = 2,
+	AUDIO_DEST_HDMI1 = 3,
 	AUDIO_DEST_MAX,
 };