[ALSA] add Asus Xonar driver

Add the snd-virtuoso driver for the Asus Virtuoso 200 chip used on the
PCI and PCI-E models of the Xonar sound card.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

sound/pci/Kconfig

@@ -885,6 +885,17 @@ config SND_VIA82XX_MODEM
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-via82xx-modem.
 
+config SND_VIRTUOSO
+	tristate "Asus Virtuoso 200 (Xonar)"
+	depends on SND
+	select SND_OXYGEN_LIB
+	help
+	  Say Y here to include support for sound cards based on the
+	  Asus AV200 chip, i.e., Xonar D2 and Xonar D2X.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-virtuoso.
+
 config SND_VX222
 	tristate "Digigram VX222"
 	depends on SND

sound/pci/oxygen/Makefile

 snd-oxygen-lib-objs := oxygen_io.o oxygen_lib.o oxygen_mixer.o oxygen_pcm.o
 snd-oxygen-objs := oxygen.o
+snd-virtuoso-objs := virtuoso.o
 
 obj-$(CONFIG_SND_OXYGEN_LIB) += snd-oxygen-lib.o
 obj-$(CONFIG_SND_OXYGEN) += snd-oxygen.o
+obj-$(CONFIG_SND_VIRTUOSO) += snd-virtuoso.o

sound/pci/oxygen/virtuoso.c

+/*
+ * C-Media CMI8788 driver for Asus Xonar cards
+ *
+ * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
+ *
+ *
+ *  This driver is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License, version 2.
+ *
+ *  This driver is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this driver; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+/*
+ * SPI 0 -> 1st PCM1796 (front)
+ * SPI 1 -> 2nd PCM1796 (side)
+ * SPI 2 -> 3rd PCM1796 (center/LFE)
+ * SPI 4 -> 4th PCM1796 (rear)
+ *
+ * GPIO 2 -> M0 of CS5381
+ * GPIO 3 -> M1 of CS5381
+ * GPIO 5 <- ? (D2X only)
+ * GPIO 7 -> ALT
+ * GPIO 8 -> ? (amps enable?)
+ */
+
+#include <sound/driver.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <sound/control.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/tlv.h>
+#include "oxygen.h"
+
+MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
+MODULE_DESCRIPTION("Asus AV200 driver");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Asus,AV200}}");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "card index");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "enable card");
+
+static struct pci_device_id xonar_ids[] __devinitdata = {
+	{ OXYGEN_PCI_SUBID(0x1043, 0x8269) }, /* Asus Xonar D2 */
+	{ OXYGEN_PCI_SUBID(0x1043, 0x82b7) }, /* Asus Xonar D2X */
+	{ }
+};
+MODULE_DEVICE_TABLE(pci, xonar_ids);
+
+/* register 0x12 */
+#define PCM1796_MUTE		0x01
+#define PCM1796_FMT_24_MSB	0x30
+#define PCM1796_ATLD		0x80
+/* register 0x14 */
+#define PCM1796_OS_64		0x00
+#define PCM1796_OS_32		0x01
+#define PCM1796_OS_128		0x02
+
+static void pcm1796_write(struct oxygen *chip, unsigned int codec,
+			  u8 reg, u8 value)
+{
+	/* maps ALSA channel pair number to SPI output */
+	static const u8 codec_map[4] = {
+		0, 4, 2, 1
+	};
+	oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER_WRITE |
+			 OXYGEN_SPI_DATA_LENGTH_2 |
+			 (codec_map[codec] << OXYGEN_SPI_CODEC_SHIFT) |
+			 OXYGEN_SPI_MAGIC,
+			 (reg << 8) | value);
+}
+
+static void xonar_init(struct oxygen *chip)
+{
+	unsigned int i;
+
+	for (i = 0; i < 4; ++i) {
+		pcm1796_write(chip, i, 0x12, PCM1796_FMT_24_MSB | PCM1796_ATLD);
+		pcm1796_write(chip, i, 0x13, 0);
+		pcm1796_write(chip, i, 0x14, PCM1796_OS_64);
+		pcm1796_write(chip, i, 0x15, 0);
+		pcm1796_write(chip, i, 0x10, 0xff);
+		pcm1796_write(chip, i, 0x11, 0xff);
+	}
+
+	oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x8c);
+	oxygen_write16_masked(chip, OXYGEN_GPIO_DATA, 0x00, 0x8c);
+#if 0
+	oxygen_clear_bits16(chip, OXYGEN_I2S_MULTICH_FORMAT,
+			    OXYGEN_I2S_MAGIC1_MASK);
+#endif
+	oxygen_ac97_set_bits(chip, 0, 0x62, 0x0080);
+	msleep(300);
+	oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x100);
+	oxygen_set_bits16(chip, OXYGEN_GPIO_DATA, 0x100);
+
+	snd_component_add(chip->card, "PCM1796");
+	snd_component_add(chip->card, "CS5381");
+}
+
+static void xonar_cleanup(struct oxygen *chip)
+{
+	oxygen_clear_bits16(chip, OXYGEN_GPIO_DATA, 0x100);
+}
+
+static void set_pcm1796_params(struct oxygen *chip,
+			       struct snd_pcm_hw_params *params)
+{
+#if 0
+	unsigned int i;
+	u8 value;
+
+	value = params_rate(params) >= 96000 ? PCM1796_OS_32 : PCM1796_OS_64;
+	for (i = 0; i < 4; ++i)
+		pcm1796_write(chip, i, 0x14, value);
+#endif
+}
+
+static void update_pcm1796_volume(struct oxygen *chip)
+{
+	unsigned int i;
+
+	for (i = 0; i < 4; ++i) {
+		pcm1796_write(chip, i, 0x10, chip->dac_volume[i * 2]);
+		pcm1796_write(chip, i, 0x11, chip->dac_volume[i * 2 + 1]);
+	}
+}
+
+static void update_pcm1796_mute(struct oxygen *chip)
+{
+	unsigned int i;
+	u8 value;
+
+	value = PCM1796_FMT_24_MSB | PCM1796_ATLD;
+	if (chip->dac_mute)
+		value |= PCM1796_MUTE;
+	for (i = 0; i < 4; ++i)
+		pcm1796_write(chip, i, 0x12, value);
+}
+
+static void set_cs5381_params(struct oxygen *chip,
+			      struct snd_pcm_hw_params *params)
+{
+	unsigned int value;
+
+	if (params_rate(params) <= 54000)
+		value = 0;
+	else if (params_rate(params) <= 108000)
+		value = 4;
+	else
+		value = 8;
+	oxygen_write16_masked(chip, OXYGEN_GPIO_DATA, value, 0x000c);
+}
+
+static int alt_switch_get(struct snd_kcontrol *ctl,
+			  struct snd_ctl_elem_value *value)
+{
+	struct oxygen *chip = ctl->private_data;
+
+	value->value.integer.value[0] =
+		!!(oxygen_read16(chip, OXYGEN_GPIO_DATA) & 0x80);
+	return 0;
+}
+
+static int alt_switch_put(struct snd_kcontrol *ctl,
+			  struct snd_ctl_elem_value *value)
+{
+	struct oxygen *chip = ctl->private_data;
+	u16 old_bits, new_bits;
+	int changed;
+
+	spin_lock_irq(&chip->reg_lock);
+	old_bits = oxygen_read16(chip, OXYGEN_GPIO_DATA);
+	if (value->value.integer.value[0])
+		new_bits = old_bits | 0x80;
+	else
+		new_bits = old_bits & ~0x80;
+	changed = new_bits != old_bits;
+	if (changed)
+		oxygen_write16(chip, OXYGEN_GPIO_DATA, new_bits);
+	spin_unlock_irq(&chip->reg_lock);
+	return changed;
+}
+
+static const struct snd_kcontrol_new alt_switch = {
+	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+	.name = "Analog Loopback Switch",
+	.info = snd_ctl_boolean_mono_info,
+	.get = alt_switch_get,
+	.put = alt_switch_put,
+};
+
+static const DECLARE_TLV_DB_SCALE(pcm1796_db_scale, -12000, 50, 0);
+
+static int xonar_mixer_init(struct oxygen *chip)
+{
+	return snd_ctl_add(chip->card, snd_ctl_new1(&alt_switch, chip));
+}
+
+static const struct oxygen_model model_xonar = {
+	.shortname = "Asus AV200",
+	.longname = "Asus Virtuoso 200",
+	.chip = "AV200",
+	.init = xonar_init,
+	.mixer_init = xonar_mixer_init,
+	.cleanup = xonar_cleanup,
+	.set_dac_params = set_pcm1796_params,
+	.set_adc_params = set_cs5381_params,
+	.update_dac_volume = update_pcm1796_volume,
+	.update_dac_mute = update_pcm1796_mute,
+	.dac_tlv = pcm1796_db_scale,
+	.record_from_dma_b = 1,
+	.cd_in_from_video_in = 1,
+	.dac_minimum_volume = 15,
+};
+
+static int __devinit xonar_probe(struct pci_dev *pci,
+				 const struct pci_device_id *pci_id)
+{
+	static int dev;
+	int err;
+
+	if (dev >= SNDRV_CARDS)
+		return -ENODEV;
+	if (!enable[dev]) {
+		++dev;
+		return -ENOENT;
+	}
+	err = oxygen_pci_probe(pci, index[dev], id[dev], &model_xonar);
+	if (err >= 0)
+		++dev;
+	return err;
+}
+
+static struct pci_driver xonar_driver = {
+	.name = "AV200",
+	.id_table = xonar_ids,
+	.probe = xonar_probe,
+	.remove = __devexit_p(oxygen_pci_remove),
+};
+
+static int __init alsa_card_xonar_init(void)
+{
+	return pci_register_driver(&xonar_driver);
+}
+
+static void __exit alsa_card_xonar_exit(void)
+{
+	pci_unregister_driver(&xonar_driver);
+}
+
+module_init(alsa_card_xonar_init)
+module_exit(alsa_card_xonar_exit)