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9e061ed2ff
alsa-lib/alsa-git.patch
Jaroslav Kysela 9e061ed2ff 1.2.5 fixes
2021-06-02 19:21:12 +02:00

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From ddfc32abf5697de1618b9e7ffdf57a0f97013090 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Wed, 2 Jun 2021 08:49:32 +0200
Subject: [PATCH 1/3] conf: fix load_for_all_cards()
The 63f7745b commit is loading the driver specific configuration
multiple times which ends with the array merges (see the bug).
Introduce the loaded compound which traces the already loaded
driver configurations and skip the multiple load requests.
Fixes: https://github.com/alsa-project/alsa-lib/issues/143
Fixes: 63f7745b ("conf: extend load_for_all_cards hook (id/value table)")
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
src/conf.c | 33 ++++++++++++++++++++++++++++-----
1 file changed, 28 insertions(+), 5 deletions(-)
diff --git a/src/conf.c b/src/conf.c
index f6c80031..d863dec6 100644
--- a/src/conf.c
+++ b/src/conf.c
@@ -4325,18 +4325,23 @@ static int _snd_config_hook_table(snd_config_t *root, snd_config_t *config, snd_
int snd_config_hook_load_for_all_cards(snd_config_t *root, snd_config_t *config, snd_config_t **dst, snd_config_t *private_data ATTRIBUTE_UNUSED)
{
int card = -1, err;
+ snd_config_t *loaded; // trace loaded cards
+ err = snd_config_top(&loaded);
+ if (err < 0)
+ return err;
do {
err = snd_card_next(&card);
if (err < 0)
- return err;
+ goto __fin_err;
if (card >= 0) {
- snd_config_t *n, *private_data = NULL;
+ snd_config_t *n, *m, *private_data = NULL;
const char *driver;
char *fdriver = NULL;
+ bool load;
err = snd_determine_driver(card, &fdriver);
if (err < 0)
- return err;
+ goto __fin_err;
if (snd_config_search(root, fdriver, &n) >= 0) {
if (snd_config_get_string(n, &driver) < 0) {
if (snd_config_get_type(n) == SND_CONFIG_TYPE_COMPOUND) {
@@ -4357,6 +4362,19 @@ int snd_config_hook_load_for_all_cards(snd_config_t *root, snd_config_t *config,
driver = fdriver;
}
__std:
+ load = true;
+ err = snd_config_imake_integer(&m, driver, 1);
+ if (err < 0)
+ goto __err;
+ err = snd_config_add(loaded, m);
+ if (err < 0) {
+ if (err == -EEXIST) {
+ snd_config_delete(m);
+ load = false;
+ } else {
+ goto __err;
+ }
+ }
private_data = _snd_config_hook_private_data(card, driver);
if (!private_data) {
err = -ENOMEM;
@@ -4365,17 +4383,22 @@ int snd_config_hook_load_for_all_cards(snd_config_t *root, snd_config_t *config,
err = _snd_config_hook_table(root, config, private_data);
if (err < 0)
goto __err;
- err = snd_config_hook_load(root, config, &n, private_data);
+ if (load)
+ err = snd_config_hook_load(root, config, &n, private_data);
__err:
if (private_data)
snd_config_delete(private_data);
free(fdriver);
if (err < 0)
- return err;
+ goto __fin_err;
}
} while (card >= 0);
+ snd_config_delete(loaded);
*dst = NULL;
return 0;
+__fin_err:
+ snd_config_delete(loaded);
+ return err;
}
#ifndef DOC_HIDDEN
SND_DLSYM_BUILD_VERSION(snd_config_hook_load_for_all_cards, SND_CONFIG_DLSYM_VERSION_HOOK);
--
2.30.2
From 0e4ba2ea8c0402f12a645032a14693eb9b1278e6 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Wed, 2 Jun 2021 11:09:43 +0200
Subject: [PATCH 2/3] ucm: add _alibpref to get the private device prefix
It may be useful to get the device prefix for the local configuration.
Link: https://gitlab.freedesktop.org/pipewire/pipewire/-/issues/1251
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
include/use-case.h | 1 +
src/ucm/main.c | 21 +++++++++++++++++++++
2 files changed, 22 insertions(+)
diff --git a/include/use-case.h b/include/use-case.h
index ec1a97b0..7890358b 100644
--- a/include/use-case.h
+++ b/include/use-case.h
@@ -258,6 +258,7 @@ int snd_use_case_get_list(snd_use_case_mgr_t *uc_mgr,
* - _verb - return current verb
* - _file - return configuration file loaded for current card
* - _alibcfg - return private alsa-lib's configuration for current card
+ * - _alibpref - return private alsa-lib's configuration device prefix for current card
*
* - [=]{NAME}[/[{modifier}|{/device}][/{verb}]]
* - value identifier {NAME}
diff --git a/src/ucm/main.c b/src/ucm/main.c
index 361952f6..3c9ea15d 100644
--- a/src/ucm/main.c
+++ b/src/ucm/main.c
@@ -2138,6 +2138,25 @@ static int get_alibcfg(snd_use_case_mgr_t *uc_mgr, char **str)
return 0;
}
+/**
+ * \brief Get device prefix for private alsa-lib configuration
+ * \param uc_mgr Use case manager
+ * \param str Returned value string
+ * \return Zero on success (value is filled), otherwise a negative error code
+ */
+static int get_alibpref(snd_use_case_mgr_t *uc_mgr, char **str)
+{
+ const size_t l = 9;
+ char *s;
+
+ s = malloc(l);
+ if (s == NULL)
+ return -ENOMEM;
+ snprintf(s, l, "_ucm%04X", uc_mgr->ucm_card_number);
+ *str = s;
+ return 0;
+}
+
/**
* \brief Get current - string
* \param uc_mgr Use case manager
@@ -2193,6 +2212,8 @@ int snd_use_case_get(snd_use_case_mgr_t *uc_mgr,
} else if (strcmp(identifier, "_alibcfg") == 0) {
err = get_alibcfg(uc_mgr, (char **)value);
+ } else if (strcmp(identifier, "_alibpref") == 0) {
+ err = get_alibpref(uc_mgr, (char **)value);
} else if (identifier[0] == '_') {
err = -ENOENT;
} else {
--
2.30.2
From 9621d0bff2e60b43e329ffa5059ab19f2914ec14 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Wed, 2 Jun 2021 11:21:54 +0200
Subject: [PATCH 3/3] ucm: fix _alibpref string (add '.' delimiter to the end)
Fixes: 0e4ba2ea ("ucm: add _alibpref to get the private device prefix")
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
---
src/ucm/main.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/ucm/main.c b/src/ucm/main.c
index 3c9ea15d..c9b37b68 100644
--- a/src/ucm/main.c
+++ b/src/ucm/main.c
@@ -2146,13 +2146,13 @@ static int get_alibcfg(snd_use_case_mgr_t *uc_mgr, char **str)
*/
static int get_alibpref(snd_use_case_mgr_t *uc_mgr, char **str)
{
- const size_t l = 9;
+ const size_t l = 10;
char *s;
s = malloc(l);
if (s == NULL)
return -ENOMEM;
- snprintf(s, l, "_ucm%04X", uc_mgr->ucm_card_number);
+ snprintf(s, l, "_ucm%04X.", uc_mgr->ucm_card_number);
*str = s;
return 0;
}
--
2.30.2
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