1 files changed, 142 insertions, 0 deletions
diff --git a/sound/pci/cs46xx/cs46xx.c b/sound/pci/cs46xx/cs46xx.c
new file mode 100644
index 0000000000..8634004a60
--- /dev/null
+++ b/sound/pci/cs46xx/cs46xx.c
@@ -0,0 +1,142 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  The driver for the Cirrus Logic's Sound Fusion CS46XX based soundcards
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ */
+
+/*
+  NOTES:
+  - sometimes the sound is metallic and sibilant, unloading and 
+    reloading the module may solve this.
+*/
+
+#include <linux/pci.h>
+#include <linux/time.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include "cs46xx.h"
+#include <sound/initval.h>
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
+MODULE_DESCRIPTION("Cirrus Logic Sound Fusion CS46XX");
+MODULE_LICENSE("GPL");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;	/* Index 0-MAX */
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
+static bool external_amp[SNDRV_CARDS];
+static bool thinkpad[SNDRV_CARDS];
+static bool mmap_valid[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 1};
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for the CS46xx soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for the CS46xx soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable CS46xx soundcard.");
+module_param_array(external_amp, bool, NULL, 0444);
+MODULE_PARM_DESC(external_amp, "Force to enable external amplifier.");
+module_param_array(thinkpad, bool, NULL, 0444);
+MODULE_PARM_DESC(thinkpad, "Force to enable Thinkpad's CLKRUN control.");
+module_param_array(mmap_valid, bool, NULL, 0444);
+MODULE_PARM_DESC(mmap_valid, "Support OSS mmap.");
+
+static const struct pci_device_id snd_cs46xx_ids[] = {
+	{ PCI_VDEVICE(CIRRUS, 0x6001), 0, },   /* CS4280 */
+	{ PCI_VDEVICE(CIRRUS, 0x6003), 0, },   /* CS4612 */
+	{ PCI_VDEVICE(CIRRUS, 0x6004), 0, },   /* CS4615 */
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, snd_cs46xx_ids);
+
+static int snd_card_cs46xx_probe(struct pci_dev *pci,
+				 const struct pci_device_id *pci_id)
+{
+	static int dev;
+	struct snd_card *card;
+	struct snd_cs46xx *chip;
+	int err;
+
+	if (dev >= SNDRV_CARDS)
+		return -ENODEV;
+	if (!enable[dev]) {
+		dev++;
+		return -ENOENT;
+	}
+
+	err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
+				sizeof(*chip), &card);
+	if (err < 0)
+		return err;
+	chip = card->private_data;
+	err = snd_cs46xx_create(card, pci,
+				external_amp[dev], thinkpad[dev]);
+	if (err < 0)
+		goto error;
+	card->private_data = chip;
+	chip->accept_valid = mmap_valid[dev];
+	err = snd_cs46xx_pcm(chip, 0);
+	if (err < 0)
+		goto error;
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	err = snd_cs46xx_pcm_rear(chip, 1);
+	if (err < 0)
+		goto error;
+	err = snd_cs46xx_pcm_iec958(chip, 2);
+	if (err < 0)
+		goto error;
+#endif
+	err = snd_cs46xx_mixer(chip, 2);
+	if (err < 0)
+		goto error;
+#ifdef CONFIG_SND_CS46XX_NEW_DSP
+	if (chip->nr_ac97_codecs ==2) {
+		err = snd_cs46xx_pcm_center_lfe(chip, 3);
+		if (err < 0)
+			goto error;
+	}
+#endif
+	err = snd_cs46xx_midi(chip, 0);
+	if (err < 0)
+		goto error;
+	err = snd_cs46xx_start_dsp(chip);
+	if (err < 0)
+		goto error;
+
+	snd_cs46xx_gameport(chip);
+
+	strcpy(card->driver, "CS46xx");
+	strcpy(card->shortname, "Sound Fusion CS46xx");
+	sprintf(card->longname, "%s at 0x%lx/0x%lx, irq %i",
+		card->shortname,
+		chip->ba0_addr,
+		chip->ba1_addr,
+		chip->irq);
+
+	err = snd_card_register(card);
+	if (err < 0)
+		goto error;
+
+	pci_set_drvdata(pci, card);
+	dev++;
+	return 0;
+
+ error:
+	snd_card_free(card);
+	return err;
+}
+
+static struct pci_driver cs46xx_driver = {
+	.name = KBUILD_MODNAME,
+	.id_table = snd_cs46xx_ids,
+	.probe = snd_card_cs46xx_probe,
+#ifdef CONFIG_PM_SLEEP
+	.driver = {
+		.pm = &snd_cs46xx_pm,
+	},
+#endif
+};
+
+module_pci_driver(cs46xx_driver);