ALSA: hda - Allow override more fields via patch loader
Allow the override of vendor-id, subsystem-id, revision-id and chip name
via patch loading. Updated the document, too.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c
index b36919c..a1fc837 100644
--- a/sound/pci/hda/hda_hwdep.c
+++ b/sound/pci/hda/hda_hwdep.c
@@ -625,6 +625,10 @@
LINE_MODE_PINCFG,
LINE_MODE_VERB,
LINE_MODE_HINT,
+ LINE_MODE_VENDOR_ID,
+ LINE_MODE_SUBSYSTEM_ID,
+ LINE_MODE_REVISION_ID,
+ LINE_MODE_CHIP_NAME,
NUM_LINE_MODES,
};
@@ -654,53 +658,71 @@
}
/* parse the contents after the other command tags, [pincfg], [verb],
- * [hint] and [model]
+ * [vendor_id], [subsystem_id], [revision_id], [chip_name], [hint] and [model]
* just pass to the sysfs helper (only when any codec was specified)
*/
static void parse_pincfg_mode(char *buf, struct hda_bus *bus,
struct hda_codec **codecp)
{
- if (!*codecp)
- return;
parse_user_pin_configs(*codecp, buf);
}
static void parse_verb_mode(char *buf, struct hda_bus *bus,
struct hda_codec **codecp)
{
- if (!*codecp)
- return;
parse_init_verbs(*codecp, buf);
}
static void parse_hint_mode(char *buf, struct hda_bus *bus,
struct hda_codec **codecp)
{
- if (!*codecp)
- return;
parse_hints(*codecp, buf);
}
static void parse_model_mode(char *buf, struct hda_bus *bus,
struct hda_codec **codecp)
{
- if (!*codecp)
- return;
kfree((*codecp)->modelname);
(*codecp)->modelname = kstrdup(buf, GFP_KERNEL);
}
+static void parse_chip_name_mode(char *buf, struct hda_bus *bus,
+ struct hda_codec **codecp)
+{
+ kfree((*codecp)->chip_name);
+ (*codecp)->chip_name = kstrdup(buf, GFP_KERNEL);
+}
+
+#define DEFINE_PARSE_ID_MODE(name) \
+static void parse_##name##_mode(char *buf, struct hda_bus *bus, \
+ struct hda_codec **codecp) \
+{ \
+ unsigned long val; \
+ if (!strict_strtoul(buf, 0, &val)) \
+ (*codecp)->name = val; \
+}
+
+DEFINE_PARSE_ID_MODE(vendor_id);
+DEFINE_PARSE_ID_MODE(subsystem_id);
+DEFINE_PARSE_ID_MODE(revision_id);
+
+
struct hda_patch_item {
const char *tag;
void (*parser)(char *buf, struct hda_bus *bus, struct hda_codec **retc);
+ int need_codec;
};
static struct hda_patch_item patch_items[NUM_LINE_MODES] = {
- [LINE_MODE_CODEC] = { "[codec]", parse_codec_mode },
- [LINE_MODE_MODEL] = { "[model]", parse_model_mode },
- [LINE_MODE_VERB] = { "[verb]", parse_verb_mode },
- [LINE_MODE_PINCFG] = { "[pincfg]", parse_pincfg_mode },
- [LINE_MODE_HINT] = { "[hint]", parse_hint_mode },
+ [LINE_MODE_CODEC] = { "[codec]", parse_codec_mode, 0 },
+ [LINE_MODE_MODEL] = { "[model]", parse_model_mode, 1 },
+ [LINE_MODE_VERB] = { "[verb]", parse_verb_mode, 1 },
+ [LINE_MODE_PINCFG] = { "[pincfg]", parse_pincfg_mode, 1 },
+ [LINE_MODE_HINT] = { "[hint]", parse_hint_mode, 1 },
+ [LINE_MODE_VENDOR_ID] = { "[vendor_id]", parse_vendor_id_mode, 1 },
+ [LINE_MODE_SUBSYSTEM_ID] = { "[subsystem_id]", parse_subsystem_id_mode, 1 },
+ [LINE_MODE_REVISION_ID] = { "[revision_id]", parse_revision_id_mode, 1 },
+ [LINE_MODE_CHIP_NAME] = { "[chip_name]", parse_chip_name_mode, 1 },
};
/* check the line starting with '[' -- change the parser mode accodingly */
@@ -783,7 +805,8 @@
continue;
if (*buf == '[')
line_mode = parse_line_mode(buf, bus);
- else if (patch_items[line_mode].parser)
+ else if (patch_items[line_mode].parser &&
+ (codec || !patch_items[line_mode].need_codec))
patch_items[line_mode].parser(buf, bus, &codec);
}
release_firmware(fw);