[PATCH 0/5] ALSA: hda/ca0132 - Fix no-audio issues and add documentation.

[PATCH 0/5] ALSA: hda/ca0132 - Fix no-audio issues and add documentation.

[Connor McAdams]

This patch series attempts to fix the no audio at startup issues that
have been occurring for some users, using information gained through
reverse engineering the ca0132's onboard 8051 processor.

The issue of no audio on startup seemed to be caused by two separate
problems: not resetting the codec upon initialization, and not making
sure the DSP allocates it's DMA channels correctly.

Tested and working on all cards, except for the AE-7. The AE-7 shouldn't
have any issues, however, I don't have one on hand to test.

As an aside, I'm not sure how to classify which commits this necessarily
'fixes', as it's covering multiple areas. Please let me know if this is
necessary.

Connor McAdams (5):
  ALSA: hda/ca0132 - Reset codec upon initialization.
  ALSA: hda/ca0132 - Add stream port remapping function.
  ALSA: hda/ca0132 - Add 8051 exram helper functions.
  ALSA: hda/ca0132 - Ensure DSP is properly setup post-firmware
    download.
  ALSA: hda/ca0132 - Remove now unnecessary DSP setup functions.

 sound/pci/hda/patch_ca0132.c | 567 ++++++++++++++++++++++-------------
 1 file changed, 363 insertions(+), 204 deletions(-)

-- 
2.25.1

[PATCH 1/5] ALSA: hda/ca0132 - Reset codec upon initialization.

[Connor McAdams]

Reset the codec upon initialization to clear out anything that may have
been setup on a previous boot into Windows, or in case of an improper
shutdown.

Signed-off-by: Connor McAdams <conmanx360@gmail.com>
---
 sound/pci/hda/patch_ca0132.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 4fbec4258f58..05945f021e74 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -8642,6 +8642,22 @@ static void ca0132_init_chip(struct hda_codec *codec)
 
 	mutex_init(&spec->chipio_mutex);
 
+	/*
+	 * The Windows driver always does this upon startup, which seems to
+	 * clear out any previous configuration. This should help issues where
+	 * a boot into Windows prior to a boot into Linux breaks things. Also,
+	 * Windows always sends the reset twice.
+	 */
+	if (ca0132_use_alt_functions(spec)) {
+		chipio_set_control_flag(codec, CONTROL_FLAG_IDLE_ENABLE, 0);
+		chipio_write_no_mutex(codec, 0x18b0a4, 0x000000c2);
+
+		snd_hda_codec_write(codec, codec->core.afg, 0,
+			    AC_VERB_SET_CODEC_RESET, 0);
+		snd_hda_codec_write(codec, codec->core.afg, 0,
+			    AC_VERB_SET_CODEC_RESET, 0);
+	}
+
 	spec->cur_out_type = SPEAKER_OUT;
 	if (!ca0132_use_alt_functions(spec))
 		spec->cur_mic_type = DIGITAL_MIC;
@@ -9262,11 +9278,6 @@ static void ae5_register_set(struct hda_codec *codec)
 
 	if (ca0132_quirk(spec) == QUIRK_AE5)
 		ca0113_mmio_command_set(codec, 0x48, 0x07, 0x83);
-
-	chipio_write(codec, 0x18b0a4, 0x000000c2);
-
-	snd_hda_codec_write(codec, 0x01, 0, 0x7ff, 0x00);
-	snd_hda_codec_write(codec, 0x01, 0, 0x7ff, 0x00);
 }
 
 /*
-- 
2.25.1

[PATCH 2/5] ALSA: hda/ca0132 - Add stream port remapping function.

[Connor McAdams]

Add function for remapping a ChipIO stream's ports. Also include some
documentation as to how this works.

Signed-off-by: Connor McAdams <conmanx360@gmail.com>
---
 sound/pci/hda/patch_ca0132.c | 208 ++++++++++++++++++++++++++---------
 1 file changed, 156 insertions(+), 52 deletions(-)

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 05945f021e74..650a7e2bd311 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -788,6 +788,40 @@ static const struct ae5_filter_set ae5_filter_presets[] = {
 	}
 };
 
+/*
+ * Data structures for storing audio router remapping data. These are used to
+ * remap a currently active streams ports.
+ */
+struct chipio_stream_remap_data {
+	unsigned int stream_id;
+	unsigned int count;
+
+	unsigned int offset[16];
+	unsigned int value[16];
+};
+
+static const struct chipio_stream_remap_data stream_remap_data[] = {
+	{ .stream_id = 0x14,
+	  .count     = 0x04,
+	  .offset    = { 0x00, 0x04, 0x08, 0x0c },
+	  .value     = { 0x0001f8c0, 0x0001f9c1, 0x0001fac6, 0x0001fbc7 },
+	},
+	{ .stream_id = 0x0c,
+	  .count     = 0x0c,
+	  .offset    = { 0x00, 0x04, 0x08, 0x0c, 0x10, 0x14, 0x18, 0x1c,
+			 0x20, 0x24, 0x28, 0x2c },
+	  .value     = { 0x0001e0c0, 0x0001e1c1, 0x0001e4c2, 0x0001e5c3,
+			 0x0001e2c4, 0x0001e3c5, 0x0001e8c6, 0x0001e9c7,
+			 0x0001ecc8, 0x0001edc9, 0x0001eaca, 0x0001ebcb },
+	},
+	{ .stream_id = 0x0c,
+	  .count     = 0x08,
+	  .offset    = { 0x08, 0x0c, 0x10, 0x14, 0x20, 0x24, 0x28, 0x2c },
+	  .value     = { 0x000140c2, 0x000141c3, 0x000150c4, 0x000151c5,
+			 0x000142c8, 0x000143c9, 0x000152ca, 0x000153cb },
+	}
+};
+
 enum hda_cmd_vendor_io {
 	/* for DspIO node */
 	VENDOR_DSPIO_SCP_WRITE_DATA_LOW      = 0x000,
@@ -7423,6 +7457,104 @@ static void ca0132_refresh_widget_caps(struct hda_codec *codec)
 	}
 }
 
+/*
+ * The region of ChipIO memory from 0x190000-0x1903fc is a sort of 'audio
+ * router', where each entry represents a 48khz audio channel, with a format
+ * of an 8-bit destination, an 8-bit source, and an unknown 2-bit number
+ * value. The 2-bit number value is seemingly 0 if inactive, 1 if active,
+ * and 3 if it's using Sample Rate Converter ports.
+ * An example is:
+ * 0x0001f8c0
+ * In this case, f8 is the destination, and c0 is the source. The number value
+ * is 1.
+ * This region of memory is normally managed internally by the 8051, where
+ * the region of exram memory from 0x1477-0x1575 has each byte represent an
+ * entry within the 0x190000 range, and when a range of entries is in use, the
+ * ending value is overwritten with 0xff.
+ * 0x1578 in exram is a table of 0x25 entries, corresponding to the ChipIO
+ * streamID's, where each entry is a starting 0x190000 port offset.
+ * 0x159d in exram is the same as 0x1578, except it contains the ending port
+ * offset for the corresponding streamID.
+ *
+ * On certain cards, such as the SBZ/ZxR/AE7, these are originally setup by
+ * the 8051, then manually overwritten to remap the ports to work with the
+ * new DACs.
+ *
+ * Currently known portID's:
+ * 0x00-0x1f: HDA audio stream input/output ports.
+ * 0x80-0xbf: Sample rate converter input/outputs. Only valid ports seem to
+ *            have the lower-nibble set to 0x1, 0x2, and 0x9.
+ * 0xc0-0xdf: DSP DMA input/output ports. Dynamically assigned.
+ * 0xe0-0xff: DAC/ADC audio input/output ports.
+ *
+ * Currently known streamID's:
+ * 0x03: Mic1 ADC to DSP.
+ * 0x04: Mic2 ADC to DSP.
+ * 0x05: HDA node 0x02 audio stream to DSP.
+ * 0x0f: DSP Mic exit to HDA node 0x07.
+ * 0x0c: DSP processed audio to DACs.
+ * 0x14: DAC0, front L/R.
+ *
+ * It is possible to route the HDA audio streams directly to the DAC and
+ * bypass the DSP entirely, with the only downside being that since the DSP
+ * does volume control, the only volume control you'll get is through PCM on
+ * the PC side, in the same way volume is handled for optical out. This may be
+ * useful for debugging.
+ */
+static void chipio_remap_stream(struct hda_codec *codec,
+		const struct chipio_stream_remap_data *remap_data)
+{
+	unsigned int i, stream_offset, tmp;
+
+	/* Get the starting port for the stream to be remapped. */
+	tmp = 0x1578 + remap_data->stream_id;
+	for (i = 0; i < 2; i++) {
+		snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
+				    VENDOR_CHIPIO_8051_ADDRESS_LOW + i,
+				    ((tmp >> (i * 8)) & 0xff));
+	}
+
+	stream_offset = snd_hda_codec_read(codec, WIDGET_CHIP_CTRL, 0,
+				   VENDOR_CHIPIO_8051_DATA_READ, 0);
+
+	/*
+	 * Check if the stream's port value is 0xff, because the 8051 may not
+	 * have gotten around to setting up the stream yet. Wait until it's
+	 * setup to remap it's ports.
+	 */
+	if (stream_offset == 0xff) {
+		for (i = 0; i < 5; i++) {
+			msleep(25);
+
+			stream_offset = snd_hda_codec_read(codec,
+					WIDGET_CHIP_CTRL, 0,
+					VENDOR_CHIPIO_8051_DATA_READ, 0);
+
+			if (stream_offset != 0xff)
+				break;
+		}
+	}
+
+	if (stream_offset == 0xff) {
+		codec_info(codec, "%s: Stream 0x%02x ports aren't allocated, remap failed!\n",
+				__func__, remap_data->stream_id);
+		return;
+	}
+
+	/* Offset isn't in bytes, its in 32-bit words, so multiply it by 4. */
+	stream_offset *= 0x04;
+	stream_offset += 0x190000;
+
+	for (i = 0; i < remap_data->count; i++) {
+		chipio_write_no_mutex(codec,
+				stream_offset + remap_data->offset[i],
+				remap_data->value[i]);
+	}
+
+	/* Update stream map configuration. */
+	chipio_write_no_mutex(codec, 0x19042c, 0x00000001);
+}
+
 /*
  * Default speaker tuning values setup for alternative codecs.
  */
@@ -7570,46 +7702,35 @@ static void sbz_connect_streams(struct hda_codec *codec)
  */
 static void sbz_chipio_startup_data(struct hda_codec *codec)
 {
+	const struct chipio_stream_remap_data *dsp_out_remap_data;
 	struct ca0132_spec *spec = codec->spec;
 
 	mutex_lock(&spec->chipio_mutex);
 	codec_dbg(codec, "Startup Data entered, mutex locked and loaded.\n");
 
-	/* These control audio output */
-	chipio_write_no_mutex(codec, 0x190060, 0x0001f8c0);
-	chipio_write_no_mutex(codec, 0x190064, 0x0001f9c1);
-	chipio_write_no_mutex(codec, 0x190068, 0x0001fac6);
-	chipio_write_no_mutex(codec, 0x19006c, 0x0001fbc7);
-	/* Signal to update I think */
-	chipio_write_no_mutex(codec, 0x19042c, 0x00000001);
+	/* Remap DAC0's output ports. */
+	chipio_remap_stream(codec, &stream_remap_data[0]);
 
-	chipio_set_stream_channels(codec, 0x0C, 6);
-	chipio_set_stream_control(codec, 0x0C, 1);
-	/* No clue what these control */
-	if (ca0132_quirk(spec) == QUIRK_SBZ) {
-		chipio_write_no_mutex(codec, 0x190030, 0x0001e0c0);
-		chipio_write_no_mutex(codec, 0x190034, 0x0001e1c1);
-		chipio_write_no_mutex(codec, 0x190038, 0x0001e4c2);
-		chipio_write_no_mutex(codec, 0x19003c, 0x0001e5c3);
-		chipio_write_no_mutex(codec, 0x190040, 0x0001e2c4);
-		chipio_write_no_mutex(codec, 0x190044, 0x0001e3c5);
-		chipio_write_no_mutex(codec, 0x190048, 0x0001e8c6);
-		chipio_write_no_mutex(codec, 0x19004c, 0x0001e9c7);
-		chipio_write_no_mutex(codec, 0x190050, 0x0001ecc8);
-		chipio_write_no_mutex(codec, 0x190054, 0x0001edc9);
-		chipio_write_no_mutex(codec, 0x190058, 0x0001eaca);
-		chipio_write_no_mutex(codec, 0x19005c, 0x0001ebcb);
-	} else if (ca0132_quirk(spec) == QUIRK_ZXR) {
-		chipio_write_no_mutex(codec, 0x190038, 0x000140c2);
-		chipio_write_no_mutex(codec, 0x19003c, 0x000141c3);
-		chipio_write_no_mutex(codec, 0x190040, 0x000150c4);
-		chipio_write_no_mutex(codec, 0x190044, 0x000151c5);
-		chipio_write_no_mutex(codec, 0x190050, 0x000142c8);
-		chipio_write_no_mutex(codec, 0x190054, 0x000143c9);
-		chipio_write_no_mutex(codec, 0x190058, 0x000152ca);
-		chipio_write_no_mutex(codec, 0x19005c, 0x000153cb);
+	/* Remap DSP audio output stream ports. */
+	switch (ca0132_quirk(spec)) {
+	case QUIRK_SBZ:
+		dsp_out_remap_data = &stream_remap_data[1];
+		break;
+
+	case QUIRK_ZXR:
+		dsp_out_remap_data = &stream_remap_data[2];
+		break;
+
+	default:
+		dsp_out_remap_data = NULL;
+		break;
 	}
-	chipio_write_no_mutex(codec, 0x19042c, 0x00000001);
+
+	chipio_set_stream_channels(codec, 0x0c, 6);
+	chipio_set_stream_control(codec, 0x0c, 1);
+
+	if (dsp_out_remap_data)
+		chipio_remap_stream(codec, dsp_out_remap_data);
 
 	codec_dbg(codec, "Startup Data exited, mutex released.\n");
 	mutex_unlock(&spec->chipio_mutex);
@@ -7842,34 +7963,17 @@ static void ae5_post_dsp_startup_data(struct hda_codec *codec)
 	mutex_unlock(&spec->chipio_mutex);
 }
 
-static const unsigned int ae7_port_set_data[] = {
-	0x0001e0c0, 0x0001e1c1, 0x0001e4c2, 0x0001e5c3, 0x0001e2c4, 0x0001e3c5,
-	0x0001e8c6, 0x0001e9c7, 0x0001ecc8, 0x0001edc9, 0x0001eaca, 0x0001ebcb
-};
-
 static void ae7_post_dsp_setup_ports(struct hda_codec *codec)
 {
 	struct ca0132_spec *spec = codec->spec;
-	unsigned int i, count, addr;
 
 	mutex_lock(&spec->chipio_mutex);
 
 	chipio_set_stream_channels(codec, 0x0c, 6);
 	chipio_set_stream_control(codec, 0x0c, 1);
 
-	count = ARRAY_SIZE(ae7_port_set_data);
-	addr = 0x190030;
-	for (i = 0; i < count; i++) {
-		chipio_write_no_mutex(codec, addr, ae7_port_set_data[i]);
-
-		/* Addresses are incremented by 4-bytes. */
-		addr += 0x04;
-	}
-
-	/*
-	 * Port setting always ends with a write of 0x1 to address 0x19042c.
-	 */
-	chipio_write_no_mutex(codec, 0x19042c, 0x00000001);
+	/* Seems to share the same port remapping as the SBZ. */
+	chipio_remap_stream(codec, &stream_remap_data[1]);
 
 	ca0113_mmio_command_set(codec, 0x30, 0x30, 0x00);
 	ca0113_mmio_command_set(codec, 0x48, 0x0d, 0x40);
-- 
2.25.1

[PATCH 3/5] ALSA: hda/ca0132 - Add 8051 exram helper functions.

[Connor McAdams]

Add functions for both reading and writing to the 8051's exram. Also,
add a little bit of documentation on how the addresses are segmented.

Signed-off-by: Connor McAdams <conmanx360@gmail.com>
---
 sound/pci/hda/patch_ca0132.c | 138 ++++++++++++++++++++---------------
 1 file changed, 80 insertions(+), 58 deletions(-)

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 650a7e2bd311..cb725586d38b 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -1901,6 +1901,71 @@ static void chipio_8051_write_direct(struct hda_codec *codec,
 	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0, verb, addr);
 }
 
+/*
+ * Writes to the 8051's exram, which has 16-bits of address space.
+ * Data at addresses 0x2000-0x7fff is mirrored to 0x8000-0xdfff.
+ * Data at 0x8000-0xdfff can also be used as program memory for the 8051 by
+ * setting the pmem bank selection SFR.
+ * 0xe000-0xffff is always mapped as program memory, with only 0xf000-0xffff
+ * being writable.
+ */
+static void chipio_8051_write_exram(struct hda_codec *codec,
+		unsigned int addr, unsigned int data, bool use_mutex)
+{
+	struct ca0132_spec *spec = codec->spec;
+	unsigned int tmp;
+
+	if (use_mutex)
+		mutex_lock(&spec->chipio_mutex);
+
+	/* Lower 8-bits. */
+	tmp = addr & 0xff;
+	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
+			    VENDOR_CHIPIO_8051_ADDRESS_LOW, tmp);
+
+	/* Upper 8-bits. */
+	tmp = (addr >> 8) & 0xff;
+	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
+			    VENDOR_CHIPIO_8051_ADDRESS_HIGH, tmp);
+
+	/* 8-bits of data. */
+	tmp = data & 0xff;
+	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
+			    VENDOR_CHIPIO_8051_DATA_WRITE, tmp);
+
+	if (use_mutex)
+		mutex_unlock(&spec->chipio_mutex);
+}
+
+/* Readback data from the 8051's exram. */
+static void chipio_8051_read_exram(struct hda_codec *codec,
+		unsigned int addr, unsigned int *data, bool use_mutex)
+{
+	struct ca0132_spec *spec = codec->spec;
+	unsigned int tmp;
+
+	if (use_mutex)
+		mutex_lock(&spec->chipio_mutex);
+
+	/* Lower 8-bits. */
+	tmp = addr & 0xff;
+	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
+			    VENDOR_CHIPIO_8051_ADDRESS_LOW, tmp);
+
+	/* Upper 8-bits. */
+	tmp = (addr >> 8) & 0xff;
+	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
+			    VENDOR_CHIPIO_8051_ADDRESS_HIGH, tmp);
+
+	/* 8-bits of data. */
+	*data = snd_hda_codec_read(codec, WIDGET_CHIP_CTRL, 0,
+				   VENDOR_CHIPIO_8051_DATA_READ,
+				   0);
+
+	if (use_mutex)
+		mutex_unlock(&spec->chipio_mutex);
+}
+
 /*
  * Enable clocks.
  */
@@ -7422,18 +7487,10 @@ static void ca0132_init_analog_mic2(struct hda_codec *codec)
 	struct ca0132_spec *spec = codec->spec;
 
 	mutex_lock(&spec->chipio_mutex);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_LOW, 0x20);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_HIGH, 0x19);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_DATA_WRITE, 0x00);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_LOW, 0x2D);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_HIGH, 0x19);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_DATA_WRITE, 0x00);
+
+	chipio_8051_write_exram(codec, 0x1920, 0x00, false);
+	chipio_8051_write_exram(codec, 0x192d, 0x00, false);
+
 	mutex_unlock(&spec->chipio_mutex);
 }
 
@@ -7504,18 +7561,11 @@ static void ca0132_refresh_widget_caps(struct hda_codec *codec)
 static void chipio_remap_stream(struct hda_codec *codec,
 		const struct chipio_stream_remap_data *remap_data)
 {
-	unsigned int i, stream_offset, tmp;
+	unsigned int i, stream_offset;
 
 	/* Get the starting port for the stream to be remapped. */
-	tmp = 0x1578 + remap_data->stream_id;
-	for (i = 0; i < 2; i++) {
-		snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-				    VENDOR_CHIPIO_8051_ADDRESS_LOW + i,
-				    ((tmp >> (i * 8)) & 0xff));
-	}
-
-	stream_offset = snd_hda_codec_read(codec, WIDGET_CHIP_CTRL, 0,
-				   VENDOR_CHIPIO_8051_DATA_READ, 0);
+	chipio_8051_read_exram(codec, 0x1578 + remap_data->stream_id,
+			&stream_offset, false);
 
 	/*
 	 * Check if the stream's port value is 0xff, because the 8051 may not
@@ -7526,9 +7576,8 @@ static void chipio_remap_stream(struct hda_codec *codec,
 		for (i = 0; i < 5; i++) {
 			msleep(25);
 
-			stream_offset = snd_hda_codec_read(codec,
-					WIDGET_CHIP_CTRL, 0,
-					VENDOR_CHIPIO_8051_DATA_READ, 0);
+			chipio_8051_read_exram(codec, 0x1578 + remap_data->stream_id,
+					&stream_offset, false);
 
 			if (stream_offset != 0xff)
 				break;
@@ -7863,12 +7912,7 @@ static void ae5_post_dsp_param_setup(struct hda_codec *codec)
 	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0, 0x724, 0x83);
 	chipio_set_control_param(codec, CONTROL_PARAM_ASI, 0);
 
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_LOW, 0x92);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_HIGH, 0xfa);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_DATA_WRITE, 0x22);
+	chipio_8051_write_exram(codec, 0xfa92, 0x22, true);
 }
 
 static void ae5_post_dsp_pll_setup(struct hda_codec *codec)
@@ -8134,12 +8178,7 @@ static void ae7_post_dsp_asi_setup(struct hda_codec *codec)
 	chipio_set_control_param(codec, CONTROL_PARAM_ASI, 0);
 	snd_hda_codec_write(codec, 0x17, 0, 0x794, 0x00);
 
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_LOW, 0x92);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_HIGH, 0xfa);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_DATA_WRITE, 0x22);
+	chipio_8051_write_exram(codec, 0xfa92, 0x22, true);
 
 	ae7_post_dsp_pll_setup(codec);
 	ae7_post_dsp_asi_stream_setup(codec);
@@ -9133,12 +9172,7 @@ static void r3d_pre_dsp_setup(struct hda_codec *codec)
 {
 	chipio_write(codec, 0x18b0a4, 0x000000c2);
 
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_LOW, 0x1E);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_HIGH, 0x1C);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_DATA_WRITE, 0x5B);
+	chipio_8051_write_exram(codec, 0x1c1e, 0x5b, true);
 
 	snd_hda_codec_write(codec, 0x11, 0,
 			AC_VERB_SET_PIN_WIDGET_CONTROL, 0x44);
@@ -9148,21 +9182,9 @@ static void r3di_pre_dsp_setup(struct hda_codec *codec)
 {
 	chipio_write(codec, 0x18b0a4, 0x000000c2);
 
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_LOW, 0x1E);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_HIGH, 0x1C);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_DATA_WRITE, 0x5B);
-
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_LOW, 0x20);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_ADDRESS_HIGH, 0x19);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_DATA_WRITE, 0x00);
-	snd_hda_codec_write(codec, WIDGET_CHIP_CTRL, 0,
-			    VENDOR_CHIPIO_8051_DATA_WRITE, 0x40);
+	chipio_8051_write_exram(codec, 0x1c1e, 0x5b, true);
+	chipio_8051_write_exram(codec, 0x1920, 0x00, true);
+	chipio_8051_write_exram(codec, 0x1921, 0x40, true);
 
 	snd_hda_codec_write(codec, 0x11, 0,
 			AC_VERB_SET_PIN_WIDGET_CONTROL, 0x04);
-- 
2.25.1

Re: [PATCH 3/5] ALSA: hda/ca0132 - Add 8051 exram helper functions.

[Takashi Iwai]

On Tue, 08 Dec 2020 22:25:43 +0100,
Connor McAdams wrote:
> 
> +static void chipio_8051_write_exram(struct hda_codec *codec,
> +		unsigned int addr, unsigned int data, bool use_mutex)
> +{
> +	struct ca0132_spec *spec = codec->spec;
> +	unsigned int tmp;
> +
> +	if (use_mutex)
> +		mutex_lock(&spec->chipio_mutex);

This can be better to split to two functions: a core helper function
without mutex and a helper function to take the mutex lock and call
the former function.  Applying the lock conditionally is often
error-prone.


thanks,

Takashi

[PATCH 4/5] ALSA: hda/ca0132 - Ensure DSP is properly setup post-firmware download.

[Connor McAdams]

Make sure that the DSP has no DMA channels allocated once the firmware
is downloaded, and that the default audio streams in use by the DSP are
setup in the correct order.

Signed-off-by: Connor McAdams <conmanx360@gmail.com>
---
 sound/pci/hda/patch_ca0132.c | 127 +++++++++++++++++++++++++++++++++++
 1 file changed, 127 insertions(+)

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index cb725586d38b..12fee1146fc2 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -1863,6 +1863,27 @@ static void chipio_set_stream_control(struct hda_codec *codec,
 			CONTROL_PARAM_STREAM_CONTROL, enable);
 }
 
+/*
+ * Get ChipIO audio stream's status.
+ */
+static void chipio_get_stream_control(struct hda_codec *codec,
+				int streamid, unsigned int *enable,
+				bool use_mutex)
+{
+	struct ca0132_spec *spec = codec->spec;
+
+	if (use_mutex)
+		mutex_lock(&spec->chipio_mutex);
+
+	chipio_set_control_param_no_mutex(codec,
+			CONTROL_PARAM_STREAM_ID, streamid);
+	*enable = snd_hda_codec_read(codec, WIDGET_CHIP_CTRL, 0,
+			   VENDOR_CHIPIO_PARAM_GET,
+			   CONTROL_PARAM_STREAM_CONTROL);
+
+	if (use_mutex)
+		mutex_unlock(&spec->chipio_mutex);
+}
 
 /*
  * Set sampling rate of the connection point. NO MUTEX.
@@ -7514,6 +7535,108 @@ static void ca0132_refresh_widget_caps(struct hda_codec *codec)
 	}
 }
 
+
+/* If there is an active channel for some reason, find it and free it. */
+static void ca0132_alt_free_active_dma_channels(struct hda_codec *codec)
+{
+	unsigned int i, tmp;
+	int status;
+
+	/* Read active DSPDMAC channel register. */
+	status = chipio_read(codec, DSPDMAC_CHNLSTART_MODULE_OFFSET, &tmp);
+	if (status >= 0) {
+		/* AND against 0xfff to get the active channel bits. */
+		tmp = tmp & 0xfff;
+
+		/* If there are no active channels, nothing to free. */
+		if (!tmp)
+			return;
+	} else {
+		codec_dbg(codec, "%s: Failed to read active DSP DMA channel register.\n",
+				__func__);
+		return;
+	}
+
+	/*
+	 * Check each DSP DMA channel for activity, and if the channel is
+	 * active, free it.
+	 */
+	for (i = 0; i < DSPDMAC_DMA_CFG_CHANNEL_COUNT; i++) {
+		if (dsp_is_dma_active(codec, i)) {
+			status = dspio_free_dma_chan(codec, i);
+			if (status < 0)
+				codec_dbg(codec, "%s: Failed to free active DSP DMA channel %d.\n",
+						__func__, i);
+		}
+	}
+}
+
+/*
+ * In the case of CT_EXTENSIONS_ENABLE being set to 1, and the DSP being in
+ * use, audio is no longer routed directly to the DAC/ADC from the HDA stream.
+ * Instead, audio is now routed through the DSP's DMA controllers, which
+ * the DSP is tasked with setting up itself. Through debugging, it seems the
+ * cause of most of the no-audio on startup issues were due to improperly
+ * configured DSP DMA channels.
+ *
+ * Normally, the DSP configures these the first time an HDA audio stream is
+ * started post DSP firmware download. That is why creating a 'dummy' stream
+ * worked in fixing the audio in some cases. This works most of the time, but
+ * sometimes if a stream is started/stopped before the DSP can setup the DMA
+ * configuration registers, it ends up in a broken state. Issues can also
+ * arise if streams are started in an unusual order, i.e the audio output dma
+ * channel being sandwiched between the mic1 and mic2 dma channels.
+ *
+ * The solution to this is to make sure that the DSP has no DMA channels
+ * in use post DSP firmware download, and then to manually start each default
+ * DSP stream that uses the DMA channels. These are 0x0c, the audio output
+ * stream, 0x03, analog mic 1, and 0x04, analog mic 2.
+ */
+static void ca0132_alt_start_dsp_audio_streams(struct hda_codec *codec)
+{
+	const unsigned int dsp_dma_stream_ids[] = { 0x0c, 0x03, 0x04 };
+	struct ca0132_spec *spec = codec->spec;
+	unsigned int i, tmp;
+
+	/*
+	 * Check if any of the default streams are active, and if they are,
+	 * stop them.
+	 */
+	for (i = 0; i < ARRAY_SIZE(dsp_dma_stream_ids); i++) {
+		chipio_get_stream_control(codec, dsp_dma_stream_ids[i], &tmp,
+				true);
+
+		if (tmp) {
+			mutex_lock(&spec->chipio_mutex);
+			chipio_set_stream_control(codec,
+					dsp_dma_stream_ids[i], 0);
+			mutex_unlock(&spec->chipio_mutex);
+		}
+	}
+
+	/*
+	 * If all DSP streams are inactive, there should be no active DSP DMA
+	 * channels. Check and make sure this is the case, and if it isn't,
+	 * free any active channels.
+	 */
+	ca0132_alt_free_active_dma_channels(codec);
+
+	mutex_lock(&spec->chipio_mutex);
+
+	/* Make sure stream 0x0c is six channels. */
+	chipio_set_stream_channels(codec, 0x0c, 6);
+
+	for (i = 0; i < ARRAY_SIZE(dsp_dma_stream_ids); i++) {
+		chipio_set_stream_control(codec,
+				dsp_dma_stream_ids[i], 1);
+
+		/* Give the DSP some time to setup the DMA channel. */
+		msleep(75);
+	}
+
+	mutex_unlock(&spec->chipio_mutex);
+}
+
 /*
  * The region of ChipIO memory from 0x190000-0x1903fc is a sort of 'audio
  * router', where each entry represents a 48khz audio channel, with a format
@@ -8251,6 +8374,7 @@ static void r3d_setup_defaults(struct hda_codec *codec)
 
 	ca0132_alt_dsp_scp_startup(codec);
 	ca0132_alt_init_analog_mics(codec);
+	ca0132_alt_start_dsp_audio_streams(codec);
 
 	/*remove DSP headroom*/
 	tmp = FLOAT_ZERO;
@@ -8301,6 +8425,7 @@ static void sbz_setup_defaults(struct hda_codec *codec)
 
 	ca0132_alt_dsp_scp_startup(codec);
 	ca0132_alt_init_analog_mics(codec);
+	ca0132_alt_start_dsp_audio_streams(codec);
 	sbz_connect_streams(codec);
 	sbz_chipio_startup_data(codec);
 
@@ -8360,6 +8485,7 @@ static void ae5_setup_defaults(struct hda_codec *codec)
 
 	ca0132_alt_dsp_scp_startup(codec);
 	ca0132_alt_init_analog_mics(codec);
+	ca0132_alt_start_dsp_audio_streams(codec);
 	chipio_set_stream_control(codec, 0x03, 1);
 	chipio_set_stream_control(codec, 0x04, 1);
 
@@ -8429,6 +8555,7 @@ static void ae7_setup_defaults(struct hda_codec *codec)
 
 	ca0132_alt_dsp_scp_startup(codec);
 	ca0132_alt_init_analog_mics(codec);
+	ca0132_alt_start_dsp_audio_streams(codec);
 	ae7_post_dsp_setup_ports(codec);
 
 	tmp = FLOAT_ZERO;
-- 
2.25.1

[PATCH 5/5] ALSA: hda/ca0132 - Remove now unnecessary DSP setup functions.

[Connor McAdams]

Now that the DSP's audio configuration is understood, remove previous
hacky methods of trying to properly configure it.

Signed-off-by: Connor McAdams <conmanx360@gmail.com>
---
 sound/pci/hda/patch_ca0132.c | 105 -----------------------------------
 1 file changed, 105 deletions(-)

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 12fee1146fc2..b7d36c9b28b5 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -2436,13 +2436,6 @@ static int dspio_set_uint_param(struct hda_codec *codec, int mod_id,
 			sizeof(unsigned int));
 }
 
-static int dspio_set_uint_param_no_source(struct hda_codec *codec, int mod_id,
-			int req, const unsigned int data)
-{
-	return dspio_set_param(codec, mod_id, 0x00, req, &data,
-			sizeof(unsigned int));
-}
-
 /*
  * Allocate a DSP DMA channel via an SCP message
  */
@@ -7789,24 +7782,6 @@ static void ca0132_alt_init_speaker_tuning(struct hda_codec *codec)
 				SPEAKER_TUNING_FRONT_LEFT_DELAY + i, values[i]);
 }
 
-/*
- * Creates a dummy stream to bind the output to. This seems to have to be done
- * after changing the main outputs source and destination streams.
- */
-static void ca0132_alt_create_dummy_stream(struct hda_codec *codec)
-{
-	struct ca0132_spec *spec = codec->spec;
-	unsigned int stream_format;
-
-	stream_format = snd_hdac_calc_stream_format(48000, 2,
-			SNDRV_PCM_FORMAT_S32_LE, 32, 0);
-
-	snd_hda_codec_setup_stream(codec, spec->dacs[0], spec->dsp_stream_id,
-					0, stream_format);
-
-	snd_hda_codec_cleanup_stream(codec, spec->dacs[0]);
-}
-
 /*
  * Initialize mic for non-chromebook ca0132 implementations.
  */
@@ -7848,9 +7823,6 @@ static void sbz_connect_streams(struct hda_codec *codec)
 
 	codec_dbg(codec, "Connect Streams entered, mutex locked and loaded.\n");
 
-	chipio_set_stream_channels(codec, 0x0C, 6);
-	chipio_set_stream_control(codec, 0x0C, 1);
-
 	/* This value is 0x43 for 96khz, and 0x83 for 192khz. */
 	chipio_write_no_mutex(codec, 0x18a020, 0x00000043);
 
@@ -7898,9 +7870,6 @@ static void sbz_chipio_startup_data(struct hda_codec *codec)
 		break;
 	}
 
-	chipio_set_stream_channels(codec, 0x0c, 6);
-	chipio_set_stream_control(codec, 0x0c, 1);
-
 	if (dsp_out_remap_data)
 		chipio_remap_stream(codec, dsp_out_remap_data);
 
@@ -7908,57 +7877,6 @@ static void sbz_chipio_startup_data(struct hda_codec *codec)
 	mutex_unlock(&spec->chipio_mutex);
 }
 
-/*
- * Custom DSP SCP commands where the src value is 0x00 instead of 0x20. This is
- * done after the DSP is loaded.
- */
-static void ca0132_alt_dsp_scp_startup(struct hda_codec *codec)
-{
-	struct ca0132_spec *spec = codec->spec;
-	unsigned int tmp, i;
-
-	/*
-	 * Gotta run these twice, or else mic works inconsistently. Not clear
-	 * why this is, but multiple tests have confirmed it.
-	 */
-	for (i = 0; i < 2; i++) {
-		switch (ca0132_quirk(spec)) {
-		case QUIRK_SBZ:
-		case QUIRK_AE5:
-		case QUIRK_AE7:
-			tmp = 0x00000003;
-			dspio_set_uint_param_no_source(codec, 0x80, 0x0C, tmp);
-			tmp = 0x00000000;
-			dspio_set_uint_param_no_source(codec, 0x80, 0x0A, tmp);
-			tmp = 0x00000001;
-			dspio_set_uint_param_no_source(codec, 0x80, 0x0B, tmp);
-			tmp = 0x00000004;
-			dspio_set_uint_param_no_source(codec, 0x80, 0x0C, tmp);
-			tmp = 0x00000005;
-			dspio_set_uint_param_no_source(codec, 0x80, 0x0C, tmp);
-			tmp = 0x00000000;
-			dspio_set_uint_param_no_source(codec, 0x80, 0x0C, tmp);
-			break;
-		case QUIRK_R3D:
-		case QUIRK_R3DI:
-			tmp = 0x00000000;
-			dspio_set_uint_param_no_source(codec, 0x80, 0x0A, tmp);
-			tmp = 0x00000001;
-			dspio_set_uint_param_no_source(codec, 0x80, 0x0B, tmp);
-			tmp = 0x00000004;
-			dspio_set_uint_param_no_source(codec, 0x80, 0x0C, tmp);
-			tmp = 0x00000005;
-			dspio_set_uint_param_no_source(codec, 0x80, 0x0C, tmp);
-			tmp = 0x00000000;
-			dspio_set_uint_param_no_source(codec, 0x80, 0x0C, tmp);
-			break;
-		default:
-			break;
-		}
-		msleep(100);
-	}
-}
-
 static void ca0132_alt_dsp_initial_mic_setup(struct hda_codec *codec)
 {
 	struct ca0132_spec *spec = codec->spec;
@@ -8076,9 +7994,6 @@ static void ae5_post_dsp_stream_setup(struct hda_codec *codec)
 
 	chipio_set_conn_rate_no_mutex(codec, 0x70, SR_96_000);
 
-	chipio_set_stream_channels(codec, 0x0C, 6);
-	chipio_set_stream_control(codec, 0x0C, 1);
-
 	chipio_set_stream_source_dest(codec, 0x5, 0x43, 0x0);
 
 	chipio_set_stream_source_dest(codec, 0x18, 0x9, 0xd0);
@@ -8136,9 +8051,6 @@ static void ae7_post_dsp_setup_ports(struct hda_codec *codec)
 
 	mutex_lock(&spec->chipio_mutex);
 
-	chipio_set_stream_channels(codec, 0x0c, 6);
-	chipio_set_stream_control(codec, 0x0c, 1);
-
 	/* Seems to share the same port remapping as the SBZ. */
 	chipio_remap_stream(codec, &stream_remap_data[1]);
 
@@ -8164,8 +8076,6 @@ static void ae7_post_dsp_asi_stream_setup(struct hda_codec *codec)
 	ca0113_mmio_command_set(codec, 0x30, 0x2b, 0x00);
 
 	chipio_set_conn_rate_no_mutex(codec, 0x70, SR_96_000);
-	chipio_set_stream_channels(codec, 0x0c, 6);
-	chipio_set_stream_control(codec, 0x0c, 1);
 
 	chipio_set_stream_source_dest(codec, 0x05, 0x43, 0x00);
 	chipio_set_stream_source_dest(codec, 0x18, 0x09, 0xd0);
@@ -8372,7 +8282,6 @@ static void r3d_setup_defaults(struct hda_codec *codec)
 	if (spec->dsp_state != DSP_DOWNLOADED)
 		return;
 
-	ca0132_alt_dsp_scp_startup(codec);
 	ca0132_alt_init_analog_mics(codec);
 	ca0132_alt_start_dsp_audio_streams(codec);
 
@@ -8423,15 +8332,11 @@ static void sbz_setup_defaults(struct hda_codec *codec)
 	if (spec->dsp_state != DSP_DOWNLOADED)
 		return;
 
-	ca0132_alt_dsp_scp_startup(codec);
 	ca0132_alt_init_analog_mics(codec);
 	ca0132_alt_start_dsp_audio_streams(codec);
 	sbz_connect_streams(codec);
 	sbz_chipio_startup_data(codec);
 
-	chipio_set_stream_control(codec, 0x03, 1);
-	chipio_set_stream_control(codec, 0x04, 1);
-
 	/*
 	 * Sets internal input loopback to off, used to have a switch to
 	 * enable input loopback, but turned out to be way too buggy.
@@ -8466,8 +8371,6 @@ static void sbz_setup_defaults(struct hda_codec *codec)
 	}
 
 	ca0132_alt_init_speaker_tuning(codec);
-
-	ca0132_alt_create_dummy_stream(codec);
 }
 
 /*
@@ -8483,11 +8386,8 @@ static void ae5_setup_defaults(struct hda_codec *codec)
 	if (spec->dsp_state != DSP_DOWNLOADED)
 		return;
 
-	ca0132_alt_dsp_scp_startup(codec);
 	ca0132_alt_init_analog_mics(codec);
 	ca0132_alt_start_dsp_audio_streams(codec);
-	chipio_set_stream_control(codec, 0x03, 1);
-	chipio_set_stream_control(codec, 0x04, 1);
 
 	/* New, unknown SCP req's */
 	tmp = FLOAT_ZERO;
@@ -8536,8 +8436,6 @@ static void ae5_setup_defaults(struct hda_codec *codec)
 	}
 
 	ca0132_alt_init_speaker_tuning(codec);
-
-	ca0132_alt_create_dummy_stream(codec);
 }
 
 /*
@@ -8553,7 +8451,6 @@ static void ae7_setup_defaults(struct hda_codec *codec)
 	if (spec->dsp_state != DSP_DOWNLOADED)
 		return;
 
-	ca0132_alt_dsp_scp_startup(codec);
 	ca0132_alt_init_analog_mics(codec);
 	ca0132_alt_start_dsp_audio_streams(codec);
 	ae7_post_dsp_setup_ports(codec);
@@ -8622,8 +8519,6 @@ static void ae7_setup_defaults(struct hda_codec *codec)
 	}
 
 	ca0132_alt_init_speaker_tuning(codec);
-
-	ca0132_alt_create_dummy_stream(codec);
 }
 
 /*
-- 
2.25.1