f07e572f64
bcm2708: boot tested on RPi B+ v1.2 bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G bcm2710: boot tested on RPi 3B v1.2 bcm2711: boot tested on RPi 4B v1.1 4G Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
125 lines
4.1 KiB
Diff
125 lines
4.1 KiB
Diff
From c9ba62745ba17d21542db28bf7dc28a39e19f7c2 Mon Sep 17 00:00:00 2001
|
|
From: popcornmix <popcornmix@gmail.com>
|
|
Date: Tue, 10 Mar 2020 22:21:15 +0000
|
|
Subject: [PATCH] vc4_hdmi: Set HDMI_MAI_FMT
|
|
|
|
The hardware uses this for generating the right audio
|
|
data island packets when using formats other than PCM
|
|
|
|
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
|
|
---
|
|
drivers/gpu/drm/vc4/vc4_hdmi.c | 47 ++++++++++++++++++++++++++++++++++
|
|
drivers/gpu/drm/vc4/vc4_regs.h | 31 ++++++++++++++++++++++
|
|
2 files changed, 78 insertions(+)
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
|
|
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
|
|
@@ -917,6 +917,45 @@ static void vc4_hdmi_audio_shutdown(stru
|
|
vc4_hdmi->audio.substream = NULL;
|
|
}
|
|
|
|
+static int sample_rate_to_mai_fmt(int samplerate)
|
|
+{
|
|
+ switch(samplerate)
|
|
+ {
|
|
+ case 8000:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_8000;
|
|
+ case 11025:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_11025;
|
|
+ case 12000:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_12000;
|
|
+ case 16000:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_16000;
|
|
+ case 22050:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_22050;
|
|
+ case 24000:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_24000;
|
|
+ case 32000:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_32000;
|
|
+ case 44100:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_44100;
|
|
+ case 48000:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_48000;
|
|
+ case 64000:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_64000;
|
|
+ case 88200:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_88200;
|
|
+ case 96000:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_96000;
|
|
+ case 128000:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_128000;
|
|
+ case 176400:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_176400;
|
|
+ case 192000:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_192000;
|
|
+ default:
|
|
+ return VC4_HDMI_MAI_SAMPLE_RATE_NOT_INDICATED;
|
|
+ }
|
|
+}
|
|
+
|
|
/* HDMI audio codec callbacks */
|
|
static int vc4_hdmi_audio_hw_params(struct snd_pcm_substream *substream,
|
|
struct snd_pcm_hw_params *params,
|
|
@@ -926,6 +965,8 @@ static int vc4_hdmi_audio_hw_params(stru
|
|
struct device *dev = &vc4_hdmi->pdev->dev;
|
|
u32 audio_packet_config, channel_mask;
|
|
u32 channel_map;
|
|
+ u32 mai_audio_format;
|
|
+ u32 mai_sample_rate;
|
|
|
|
if (substream != vc4_hdmi->audio.substream)
|
|
return -EINVAL;
|
|
@@ -946,6 +987,12 @@ static int vc4_hdmi_audio_hw_params(stru
|
|
|
|
vc4_hdmi_audio_set_mai_clock(vc4_hdmi);
|
|
|
|
+ mai_sample_rate = sample_rate_to_mai_fmt(vc4_hdmi->audio.samplerate);
|
|
+ mai_audio_format = VC4_HDMI_MAI_FORMAT_PCM;
|
|
+ HDMI_WRITE(HDMI_MAI_FMT,
|
|
+ VC4_SET_FIELD(mai_sample_rate, VC4_HDMI_MAI_FORMAT_SAMPLE_RATE) |
|
|
+ VC4_SET_FIELD(mai_audio_format, VC4_HDMI_MAI_FORMAT_AUDIO_FORMAT));
|
|
+
|
|
/* The B frame identifier should match the value used by alsa-lib (8) */
|
|
audio_packet_config =
|
|
VC4_HDMI_AUDIO_PACKET_ZERO_DATA_ON_SAMPLE_FLAT |
|
|
--- a/drivers/gpu/drm/vc4/vc4_regs.h
|
|
+++ b/drivers/gpu/drm/vc4/vc4_regs.h
|
|
@@ -516,6 +516,37 @@
|
|
# define VC4_HDMI_AUDIO_PACKET_CEA_MASK_MASK VC4_MASK(7, 0)
|
|
# define VC4_HDMI_AUDIO_PACKET_CEA_MASK_SHIFT 0
|
|
|
|
+
|
|
+# define VC4_HDMI_MAI_FORMAT_AUDIO_FORMAT_MASK VC4_MASK(23, 16)
|
|
+# define VC4_HDMI_MAI_FORMAT_AUDIO_FORMAT_SHIFT 16
|
|
+
|
|
+enum {
|
|
+ VC4_HDMI_MAI_FORMAT_PCM = 2,
|
|
+ VC4_HDMI_MAI_FORMAT_HBR = 200,
|
|
+};
|
|
+
|
|
+# define VC4_HDMI_MAI_FORMAT_SAMPLE_RATE_MASK VC4_MASK(15, 8)
|
|
+# define VC4_HDMI_MAI_FORMAT_SAMPLE_RATE_SHIFT 8
|
|
+
|
|
+enum {
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_NOT_INDICATED = 0,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_8000 = 1,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_11025 = 2,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_12000 = 3,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_16000 = 4,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_22050 = 5,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_24000 = 6,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_32000 = 7,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_44100 = 8,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_48000 = 9,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_64000 = 10,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_88200 = 11,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_96000 = 12,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_128000 = 13,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_176400 = 14,
|
|
+ VC4_HDMI_MAI_SAMPLE_RATE_192000 = 15,
|
|
+};
|
|
+
|
|
# define VC4_HDMI_RAM_PACKET_ENABLE BIT(16)
|
|
|
|
/* When set, the CTS_PERIOD counts based on MAI bus sync pulse instead
|