From 568c59e722da22c9b0a485c2f1aaf28cb1b36b79 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Mon, 22 Sep 2008 08:56:01 +0200
Subject: [PATCH] ALSA: oxygen: add probe callback

Add a probe callback to the model structure so that model-specific
drivers can refine their model detection before the card is initialized.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/pci/oxygen/hifier.c     | 2 +-
 sound/pci/oxygen/oxygen.c     | 3 ++-
 sound/pci/oxygen/oxygen.h     | 4 +++-
 sound/pci/oxygen/oxygen_lib.c | 8 +++++++-
 sound/pci/oxygen/virtuoso.c   | 2 +-
 5 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/sound/pci/oxygen/hifier.c b/sound/pci/oxygen/hifier.c
index dad393ae040a..173d6dddc937 100644
--- a/sound/pci/oxygen/hifier.c
+++ b/sound/pci/oxygen/hifier.c
@@ -180,7 +180,7 @@ static int __devinit hifier_probe(struct pci_dev *pci,
 		++dev;
 		return -ENOENT;
 	}
-	err = oxygen_pci_probe(pci, index[dev], id[dev], &model_hifier);
+	err = oxygen_pci_probe(pci, index[dev], id[dev], &model_hifier, 0);
 	if (err >= 0)
 		++dev;
 	return err;
diff --git a/sound/pci/oxygen/oxygen.c b/sound/pci/oxygen/oxygen.c
index c5829d30ef86..4722fe08dca8 100644
--- a/sound/pci/oxygen/oxygen.c
+++ b/sound/pci/oxygen/oxygen.c
@@ -354,7 +354,8 @@ static int __devinit generic_oxygen_probe(struct pci_dev *pci,
 	}
 	is_meridian = pci_id->driver_data;
 	err = oxygen_pci_probe(pci, index[dev], id[dev],
-			       is_meridian ? &model_meridian : &model_generic);
+			       is_meridian ? &model_meridian : &model_generic,
+			       0);
 	if (err >= 0)
 		++dev;
 	return err;
diff --git a/sound/pci/oxygen/oxygen.h b/sound/pci/oxygen/oxygen.h
index 5f3fbf802222..914b8f406b14 100644
--- a/sound/pci/oxygen/oxygen.h
+++ b/sound/pci/oxygen/oxygen.h
@@ -58,6 +58,7 @@ struct oxygen_model {
 	const char *longname;
 	const char *chip;
 	struct module *owner;
+	int (*probe)(struct oxygen *chip, unsigned long driver_data);
 	void (*init)(struct oxygen *chip);
 	int (*control_filter)(struct snd_kcontrol_new *template);
 	int (*mixer_init)(struct oxygen *chip);
@@ -125,7 +126,8 @@ struct oxygen {
 /* oxygen_lib.c */
 
 int oxygen_pci_probe(struct pci_dev *pci, int index, char *id,
-		     const struct oxygen_model *model);
+		     const struct oxygen_model *model,
+		     unsigned long driver_data);
 void oxygen_pci_remove(struct pci_dev *pci);
 #ifdef CONFIG_PM
 int oxygen_pci_suspend(struct pci_dev *pci, pm_message_t state);
diff --git a/sound/pci/oxygen/oxygen_lib.c b/sound/pci/oxygen/oxygen_lib.c
index 07b0563cc903..58bbc010ed89 100644
--- a/sound/pci/oxygen/oxygen_lib.c
+++ b/sound/pci/oxygen/oxygen_lib.c
@@ -424,7 +424,8 @@ static void oxygen_card_free(struct snd_card *card)
 }
 
 int oxygen_pci_probe(struct pci_dev *pci, int index, char *id,
-		     const struct oxygen_model *model)
+		     const struct oxygen_model *model,
+		     unsigned long driver_data)
 {
 	struct snd_card *card;
 	struct oxygen *chip;
@@ -470,6 +471,11 @@ int oxygen_pci_probe(struct pci_dev *pci, int index, char *id,
 	snd_card_set_dev(card, &pci->dev);
 	card->private_free = oxygen_card_free;
 
+	if (chip->model.probe) {
+		err = chip->model.probe(chip, driver_data);
+		if (err < 0)
+			goto err_card;
+	}
 	oxygen_init(chip);
 	chip->model.init(chip);
 
diff --git a/sound/pci/oxygen/virtuoso.c b/sound/pci/oxygen/virtuoso.c
index 01d7b75f9182..4aa2857a1b05 100644
--- a/sound/pci/oxygen/virtuoso.c
+++ b/sound/pci/oxygen/virtuoso.c
@@ -696,7 +696,7 @@ static int __devinit xonar_probe(struct pci_dev *pci,
 		return -ENOENT;
 	}
 	err = oxygen_pci_probe(pci, index[dev], id[dev],
-			       &xonar_models[pci_id->driver_data]);
+			       &xonar_models[pci_id->driver_data], 0);
 	if (err >= 0)
 		++dev;
 	return err;