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authorClemens Ladisch <clemens@ladisch.de>2007-12-23 19:50:57 +0100
committerJaroslav Kysela <perex@perex.cz>2008-01-31 17:29:44 +0100
commitd0ce9946c52e7bdf95afb09553775cf28b752254 (patch)
tree684edc99cfd1def12b87abb5431c6b8f0ea2f716 /sound/pci/oxygen/oxygen_lib.c
parenta9b3aa8a0a203b9b62e15c465ba7d4797a6a2c79 (diff)
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[ALSA] add CMI8788 driver
Add the snd-oxygen driver for the C-Media CMI8788 (Oxygen) chip, used on the Asound A-8788, AuzenTech X-Meridian, Bgears b-Enspirer, Club3D Theatron DTS, HT-Omega Claro, Razer Barracuda AC-1, Sondigo Inferno, and TempoTec HIFIER sound cards. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/pci/oxygen/oxygen_lib.c')
-rw-r--r--sound/pci/oxygen/oxygen_lib.c361
1 files changed, 361 insertions, 0 deletions
diff --git a/sound/pci/oxygen/oxygen_lib.c b/sound/pci/oxygen/oxygen_lib.c
new file mode 100644
index 00000000000..6180cc858e6
--- /dev/null
+++ b/sound/pci/oxygen/oxygen_lib.c
@@ -0,0 +1,361 @@
+/*
+ * C-Media CMI8788 driver - main driver module
+ *
+ * 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
+ */
+
+#include <sound/driver.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <linux/pci.h>
+#include <sound/ac97_codec.h>
+#include <sound/asoundef.h>
+#include <sound/core.h>
+#include <sound/info.h>
+#include <sound/mpu401.h>
+#include <sound/pcm.h>
+#include "oxygen.h"
+
+MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
+MODULE_DESCRIPTION("C-Media CMI8788 helper library");
+MODULE_LICENSE("GPL");
+
+
+static irqreturn_t oxygen_interrupt(int dummy, void *dev_id)
+{
+ struct oxygen *chip = dev_id;
+ unsigned int status, clear, elapsed_streams, i;
+
+ status = oxygen_read16(chip, OXYGEN_INTERRUPT_STATUS);
+ if (!status)
+ return IRQ_NONE;
+
+ spin_lock(&chip->reg_lock);
+
+ clear = status & (OXYGEN_CHANNEL_A |
+ OXYGEN_CHANNEL_B |
+ OXYGEN_CHANNEL_C |
+ OXYGEN_CHANNEL_SPDIF |
+ OXYGEN_CHANNEL_MULTICH |
+ OXYGEN_CHANNEL_AC97 |
+ OXYGEN_INT_SPDIF_IN_CHANGE |
+ OXYGEN_INT_GPIO);
+ if (clear) {
+ if (clear & OXYGEN_INT_SPDIF_IN_CHANGE)
+ chip->interrupt_mask &= ~OXYGEN_INT_SPDIF_IN_CHANGE;
+ oxygen_write16(chip, OXYGEN_INTERRUPT_MASK,
+ chip->interrupt_mask & ~clear);
+ oxygen_write16(chip, OXYGEN_INTERRUPT_MASK,
+ chip->interrupt_mask);
+ }
+
+ elapsed_streams = status & chip->pcm_running;
+
+ spin_unlock(&chip->reg_lock);
+
+ for (i = 0; i < PCM_COUNT; ++i)
+ if ((elapsed_streams & (1 << i)) && chip->streams[i])
+ snd_pcm_period_elapsed(chip->streams[i]);
+
+ if (status & OXYGEN_INT_SPDIF_IN_CHANGE) {
+ spin_lock(&chip->reg_lock);
+ i = oxygen_read32(chip, OXYGEN_SPDIF_CONTROL);
+ if (i & OXYGEN_SPDIF_IN_CHANGE) {
+ oxygen_write32(chip, OXYGEN_SPDIF_CONTROL, i);
+ schedule_work(&chip->spdif_input_bits_work);
+ }
+ spin_unlock(&chip->reg_lock);
+ }
+
+ if (status & OXYGEN_INT_GPIO)
+ ;
+
+ if ((status & OXYGEN_INT_MIDI) && chip->midi)
+ snd_mpu401_uart_interrupt(0, chip->midi->private_data);
+
+ return IRQ_HANDLED;
+}
+
+static void oxygen_spdif_input_bits_changed(struct work_struct *work)
+{
+ struct oxygen *chip = container_of(work, struct oxygen,
+ spdif_input_bits_work);
+
+ spin_lock_irq(&chip->reg_lock);
+ oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL, OXYGEN_SPDIF_IN_INVERT);
+ spin_unlock_irq(&chip->reg_lock);
+ msleep(1);
+ if (!(oxygen_read32(chip, OXYGEN_SPDIF_CONTROL)
+ & OXYGEN_SPDIF_IN_VALID)) {
+ spin_lock_irq(&chip->reg_lock);
+ oxygen_set_bits32(chip, OXYGEN_SPDIF_CONTROL,
+ OXYGEN_SPDIF_IN_INVERT);
+ spin_unlock_irq(&chip->reg_lock);
+ msleep(1);
+ if (!(oxygen_read32(chip, OXYGEN_SPDIF_CONTROL)
+ & OXYGEN_SPDIF_IN_VALID)) {
+ spin_lock_irq(&chip->reg_lock);
+ oxygen_clear_bits32(chip, OXYGEN_SPDIF_CONTROL,
+ OXYGEN_SPDIF_IN_INVERT);
+ spin_unlock_irq(&chip->reg_lock);
+ }
+ }
+
+ if (chip->spdif_input_bits_ctl) {
+ spin_lock_irq(&chip->reg_lock);
+ chip->interrupt_mask |= OXYGEN_INT_SPDIF_IN_CHANGE;
+ oxygen_write16(chip, OXYGEN_INTERRUPT_MASK,
+ chip->interrupt_mask);
+ spin_unlock_irq(&chip->reg_lock);
+
+ snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
+ &chip->spdif_input_bits_ctl->id);
+ }
+}
+
+#ifdef CONFIG_PROC_FS
+static void oxygen_proc_read(struct snd_info_entry *entry,
+ struct snd_info_buffer *buffer)
+{
+ struct oxygen *chip = entry->private_data;
+ int i, j;
+
+ snd_iprintf(buffer, "CMI8788\n\n");
+ for (i = 0; i < 0x100; i += 0x10) {
+ snd_iprintf(buffer, "%02x:", i);
+ for (j = 0; j < 0x10; ++j)
+ snd_iprintf(buffer, " %02x", oxygen_read8(chip, i + j));
+ snd_iprintf(buffer, "\n");
+ }
+ if (mutex_lock_interruptible(&chip->mutex) < 0)
+ return;
+ snd_iprintf(buffer, "\nAC97\n");
+ for (i = 0; i < 0x80; i += 0x10) {
+ snd_iprintf(buffer, "%02x:", i);
+ for (j = 0; j < 0x10; j += 2)
+ snd_iprintf(buffer, " %04x",
+ oxygen_read_ac97(chip, 0, i + j));
+ snd_iprintf(buffer, "\n");
+ }
+ mutex_unlock(&chip->mutex);
+}
+
+static void __devinit oxygen_proc_init(struct oxygen *chip)
+{
+ struct snd_info_entry *entry;
+
+ if (!snd_card_proc_new(chip->card, "cmi8788", &entry))
+ snd_info_set_text_ops(entry, chip, oxygen_proc_read);
+}
+#else
+#define oxygen_proc_init(chip)
+#endif
+
+static void __devinit oxygen_init(struct oxygen *chip)
+{
+ unsigned int i;
+
+ chip->dac_routing = 1;
+ for (i = 0; i < 8; ++i)
+ chip->dac_volume[i] = 0xff;
+ chip->spdif_playback_enable = 1;
+ chip->spdif_bits = OXYGEN_SPDIF_C | OXYGEN_SPDIF_ORIGINAL |
+ (IEC958_AES1_CON_PCM_CODER << OXYGEN_SPDIF_CATEGORY_SHIFT);
+ chip->spdif_pcm_bits = chip->spdif_bits;
+
+ if (oxygen_read8(chip, OXYGEN_REVISION) & OXYGEN_REVISION_2)
+ chip->revision = 2;
+ else
+ chip->revision = 1;
+
+ if (chip->revision == 1)
+ oxygen_set_bits8(chip, OXYGEN_MISC, OXYGEN_MISC_MAGIC);
+
+ oxygen_set_bits8(chip, OXYGEN_FUNCTION,
+ OXYGEN_FUNCTION_RESET_CODEC |
+ OXYGEN_FUNCTION_ENABLE_SPI_4_5);
+ oxygen_write16(chip, OXYGEN_I2S_MULTICH_FORMAT, 0x010a);
+ oxygen_write16(chip, OXYGEN_I2S_A_FORMAT, 0x010a);
+ oxygen_write16(chip, OXYGEN_I2S_B_FORMAT, 0x010a);
+ oxygen_write16(chip, OXYGEN_I2S_C_FORMAT, 0x010a);
+ oxygen_set_bits32(chip, OXYGEN_SPDIF_CONTROL, OXYGEN_SPDIF_MAGIC2);
+ oxygen_write32(chip, OXYGEN_SPDIF_OUTPUT_BITS, chip->spdif_bits);
+ oxygen_write16(chip, OXYGEN_PLAY_ROUTING, 0x6c00);
+ oxygen_write8(chip, OXYGEN_REC_ROUTING, 0x10);
+ oxygen_write8(chip, OXYGEN_ADC_MONITOR, 0x00);
+ oxygen_write8(chip, OXYGEN_A_MONITOR_ROUTING, 0xe4);
+
+ oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0);
+ oxygen_write16(chip, OXYGEN_DMA_STATUS, 0);
+
+ oxygen_write8(chip, OXYGEN_AC97_INTERRUPT_MASK, 0x00);
+ oxygen_clear_bits16(chip, OXYGEN_AC97_OUT_CONFIG,
+ OXYGEN_AC97_OUT_MAGIC3);
+ oxygen_set_bits16(chip, OXYGEN_AC97_IN_CONFIG,
+ OXYGEN_AC97_IN_MAGIC3);
+ oxygen_write_ac97(chip, 0, AC97_RESET, 0);
+ msleep(1);
+ oxygen_ac97_set_bits(chip, 0, 0x70, 0x0300);
+ oxygen_ac97_set_bits(chip, 0, 0x64, 0x8043);
+ oxygen_ac97_set_bits(chip, 0, 0x62, 0x180f);
+ oxygen_write_ac97(chip, 0, AC97_MASTER, 0x0000);
+ oxygen_write_ac97(chip, 0, AC97_PC_BEEP, 0x8000);
+ oxygen_write_ac97(chip, 0, AC97_MIC, 0x8808);
+ oxygen_write_ac97(chip, 0, AC97_LINE, 0x0808);
+ oxygen_write_ac97(chip, 0, AC97_CD, 0x8808);
+ oxygen_write_ac97(chip, 0, AC97_VIDEO, 0x8808);
+ oxygen_write_ac97(chip, 0, AC97_AUX, 0x8808);
+ oxygen_write_ac97(chip, 0, AC97_REC_GAIN, 0x8000);
+ oxygen_write_ac97(chip, 0, AC97_CENTER_LFE_MASTER, 0x8080);
+ oxygen_write_ac97(chip, 0, AC97_SURROUND_MASTER, 0x8080);
+ oxygen_ac97_clear_bits(chip, 0, 0x72, 0x0001);
+ /* power down unused ADCs and DACs */
+ oxygen_ac97_set_bits(chip, 0, AC97_POWERDOWN,
+ AC97_PD_PR0 | AC97_PD_PR1);
+ oxygen_ac97_set_bits(chip, 0, AC97_EXTENDED_STATUS,
+ AC97_EA_PRI | AC97_EA_PRJ | AC97_EA_PRK);
+}
+
+static void oxygen_card_free(struct snd_card *card)
+{
+ struct oxygen *chip = card->private_data;
+
+ spin_lock_irq(&chip->reg_lock);
+ chip->interrupt_mask = 0;
+ chip->pcm_running = 0;
+ oxygen_write16(chip, OXYGEN_DMA_STATUS, 0);
+ oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, 0);
+ spin_unlock_irq(&chip->reg_lock);
+ if (chip->irq >= 0) {
+ free_irq(chip->irq, chip);
+ synchronize_irq(chip->irq);
+ }
+ flush_scheduled_work();
+ chip->model->cleanup(chip);
+ mutex_destroy(&chip->mutex);
+ pci_release_regions(chip->pci);
+ pci_disable_device(chip->pci);
+}
+
+int __devinit oxygen_pci_probe(struct pci_dev *pci, int index, char *id,
+ const struct oxygen_model *model)
+{
+ struct snd_card *card;
+ struct oxygen *chip;
+ int err;
+
+ card = snd_card_new(index, id, model->owner, sizeof *chip);
+ if (!card)
+ return -ENOMEM;
+
+ chip = card->private_data;
+ chip->card = card;
+ chip->pci = pci;
+ chip->irq = -1;
+ chip->model = model;
+ spin_lock_init(&chip->reg_lock);
+ mutex_init(&chip->mutex);
+ INIT_WORK(&chip->spdif_input_bits_work,
+ oxygen_spdif_input_bits_changed);
+
+ err = pci_enable_device(pci);
+ if (err < 0)
+ goto err_card;
+
+ err = pci_request_regions(pci, model->chip);
+ if (err < 0) {
+ snd_printk(KERN_ERR "cannot reserve PCI resources\n");
+ goto err_pci_enable;
+ }
+
+ if (!(pci_resource_flags(pci, 0) & IORESOURCE_IO) ||
+ pci_resource_len(pci, 0) < 0x100) {
+ snd_printk(KERN_ERR "invalid PCI I/O range\n");
+ err = -ENXIO;
+ goto err_pci_regions;
+ }
+ chip->addr = pci_resource_start(pci, 0);
+
+ pci_set_master(pci);
+ snd_card_set_dev(card, &pci->dev);
+ card->private_free = oxygen_card_free;
+
+ oxygen_init(chip);
+ model->init(chip);
+
+ err = request_irq(pci->irq, oxygen_interrupt, IRQF_SHARED,
+ model->chip, chip);
+ if (err < 0) {
+ snd_printk(KERN_ERR "cannot grab interrupt %d\n", pci->irq);
+ goto err_card;
+ }
+ chip->irq = pci->irq;
+
+ strcpy(card->driver, model->chip);
+ strcpy(card->shortname, model->shortname);
+ sprintf(card->longname, "%s (rev %u) at %#lx, irq %i",
+ model->longname, chip->revision, chip->addr, chip->irq);
+ strcpy(card->mixername, model->chip);
+ snd_component_add(card, model->chip);
+
+ err = oxygen_pcm_init(chip);
+ if (err < 0)
+ goto err_card;
+
+ err = oxygen_mixer_init(chip);
+ if (err < 0)
+ goto err_card;
+
+ if (oxygen_read8(chip, OXYGEN_MISC) & OXYGEN_MISC_MIDI) {
+ err = snd_mpu401_uart_new(card, 0, MPU401_HW_CMIPCI,
+ chip->addr + OXYGEN_MPU401,
+ MPU401_INFO_INTEGRATED, 0, 0,
+ &chip->midi);
+ if (err < 0)
+ goto err_card;
+ }
+
+ oxygen_proc_init(chip);
+
+ spin_lock_irq(&chip->reg_lock);
+ chip->interrupt_mask |= OXYGEN_INT_SPDIF_IN_CHANGE;
+ oxygen_write16(chip, OXYGEN_INTERRUPT_MASK, chip->interrupt_mask);
+ spin_unlock_irq(&chip->reg_lock);
+
+ err = snd_card_register(card);
+ if (err < 0)
+ goto err_card;
+
+ pci_set_drvdata(pci, card);
+ return 0;
+
+err_pci_regions:
+ pci_release_regions(pci);
+err_pci_enable:
+ pci_disable_device(pci);
+err_card:
+ snd_card_free(card);
+ return err;
+}
+EXPORT_SYMBOL(oxygen_pci_probe);
+
+void __devexit oxygen_pci_remove(struct pci_dev *pci)
+{
+ snd_card_free(pci_get_drvdata(pci));
+ pci_set_drvdata(pci, NULL);
+}
+EXPORT_SYMBOL(oxygen_pci_remove);