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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
 */

/*
 * CMI8788:
 *
 * SPI 0 -> 1st PCM1796 (front)
 * SPI 1 -> 2nd PCM1796 (surround)
 * SPI 2 -> 3rd PCM1796 (center/LFE)
 * SPI 4 -> 4th PCM1796 (back)
 *
 * GPIO 2 -> M0 of CS5381
 * GPIO 3 -> M1 of CS5381
 * GPIO 5 <- external power present (D2X only)
 * GPIO 7 -> ALT
 * GPIO 8 -> enable output to speakers
 *
 * CM9780:
 *
 * GPIO 0 -> enable AC'97 bypass (line in -> ADC)
 */

#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/mutex.h>
#include <sound/ac97_codec.h>
#include <sound/control.h>
#include <sound/core.h>
#include <sound/initval.h>
#include <sound/pcm.h>
#include <sound/tlv.h>
#include "oxygen.h"
#include "cm9780.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);


#define GPIO_CS5381_M_MASK    0x000c
#define GPIO_CS5381_M_SINGLE  0x0000
#define GPIO_CS5381_M_DOUBLE  0x0004
#define GPIO_CS5381_M_QUAD    0x0008
#define GPIO_EXT_POWER        0x0020
#define GPIO_ALT        0x0080
#define GPIO_OUTPUT_ENABLE    0x0100

#define GPIO_LINE_MUTE        CM9780_GPO0

/* register 16 */
#define PCM1796_ATL_MASK      0xff
/* register 17 */
#define PCM1796_ATR_MASK      0xff
/* register 18 */
#define PCM1796_MUTE          0x01
#define PCM1796_DME           0x02
#define PCM1796_DMF_MASK      0x0c
#define PCM1796_DMF_DISABLED  0x00
#define PCM1796_DMF_48        0x04
#define PCM1796_DMF_441       0x08
#define PCM1796_DMF_32        0x0c
#define PCM1796_FMT_MASK      0x70
#define PCM1796_FMT_16_RJUST  0x00
#define PCM1796_FMT_20_RJUST  0x10
#define PCM1796_FMT_24_RJUST  0x20
#define PCM1796_FMT_24_LJUST  0x30
#define PCM1796_FMT_16_I2S    0x40
#define PCM1796_FMT_24_I2S    0x50
#define PCM1796_ATLD          0x80
/* register 19 */
#define PCM1796_INZD          0x01
#define PCM1796_FLT_MASK      0x02
#define PCM1796_FLT_SHARP     0x00
#define PCM1796_FLT_SLOW      0x02
#define PCM1796_DFMS          0x04
#define PCM1796_OPE           0x10
#define PCM1796_ATS_MASK      0x60
#define PCM1796_ATS_1         0x00
#define PCM1796_ATS_2         0x20
#define PCM1796_ATS_4         0x40
#define PCM1796_ATS_8         0x60
#define PCM1796_REV           0x80
/* register 20 */
#define PCM1796_OS_MASK       0x03
#define PCM1796_OS_64         0x00
#define PCM1796_OS_32         0x01
#define PCM1796_OS_128        0x02
#define PCM1796_CHSL_MASK     0x04
#define PCM1796_CHSL_LEFT     0x00
#define PCM1796_CHSL_RIGHT    0x04
#define PCM1796_MONO          0x08
#define PCM1796_DFTH          0x10
#define PCM1796_DSD           0x20
#define PCM1796_SRST          0x40
/* register 21 */
#define PCM1796_PCMZ          0x01
#define PCM1796_DZ_MASK       0x06
/* register 22 */
#define PCM1796_ZFGL          0x01
#define PCM1796_ZFGR          0x02
/* register 23 */
#define PCM1796_ID_MASK       0x1f

struct xonar_data {
      u8 is_d2x;
      u8 has_power;
};

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, 1, 2, 4
      };
      oxygen_write_spi(chip, OXYGEN_SPI_TRIGGER  |
                   OXYGEN_SPI_DATA_LENGTH_2 |
                   OXYGEN_SPI_CLOCK_160 |
                   (codec_map[codec] << OXYGEN_SPI_CODEC_SHIFT) |
                   OXYGEN_SPI_CEN_LATCH_CLOCK_HI,
                   (reg << 8) | value);
}

static void xonar_init(struct oxygen *chip)
{
      struct xonar_data *data = chip->model_data;
      unsigned int i;

      data->is_d2x = chip->pci->subsystem_device == 0x82b7;

      for (i = 0; i < 4; ++i) {
            pcm1796_write(chip, i, 18, PCM1796_FMT_24_LJUST | PCM1796_ATLD);
            pcm1796_write(chip, i, 19, PCM1796_FLT_SHARP | PCM1796_ATS_1);
            pcm1796_write(chip, i, 20, PCM1796_OS_64);
            pcm1796_write(chip, i, 21, 0);
            pcm1796_write(chip, i, 16, 0xff); /* set ATL/ATR after ATLD */
            pcm1796_write(chip, i, 17, 0xff);
      }

      oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL,
                    GPIO_CS5381_M_MASK | GPIO_ALT);
      oxygen_write16_masked(chip, OXYGEN_GPIO_DATA,
                        GPIO_CS5381_M_SINGLE,
                        GPIO_CS5381_M_MASK | GPIO_ALT);
      if (data->is_d2x) {
            oxygen_clear_bits16(chip, OXYGEN_GPIO_CONTROL,
                            GPIO_EXT_POWER);
            oxygen_set_bits16(chip, OXYGEN_GPIO_INTERRUPT_MASK,
                          GPIO_EXT_POWER);
            chip->interrupt_mask |= OXYGEN_INT_GPIO;
            data->has_power = !!(oxygen_read16(chip, OXYGEN_GPIO_DATA)
                             & GPIO_EXT_POWER);
      }
      oxygen_ac97_set_bits(chip, 0, CM9780_JACK, CM9780_FMIC2MIC);
      oxygen_ac97_clear_bits(chip, 0, CM9780_GPIO_STATUS, GPIO_LINE_MUTE);
      msleep(300);
      oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, GPIO_OUTPUT_ENABLE);
      oxygen_set_bits16(chip, OXYGEN_GPIO_DATA, GPIO_OUTPUT_ENABLE);

      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, GPIO_OUTPUT_ENABLE);
}

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, 20, value);
#endif
}

static void update_pcm1796_volume(struct oxygen *chip)
{
      unsigned int i;

      for (i = 0; i < 4; ++i) {
            pcm1796_write(chip, i, 16, chip->dac_volume[i * 2]);
            pcm1796_write(chip, i, 17, chip->dac_volume[i * 2 + 1]);
      }
}

static void update_pcm1796_mute(struct oxygen *chip)
{
      unsigned int i;
      u8 value;

      value = PCM1796_FMT_24_LJUST | PCM1796_ATLD;
      if (chip->dac_mute)
            value |= PCM1796_MUTE;
      for (i = 0; i < 4; ++i)
            pcm1796_write(chip, i, 18, value);
}

static void set_cs5381_params(struct oxygen *chip,
                        struct snd_pcm_hw_params *params)
{
      unsigned int value;

      if (params_rate(params) <= 54000)
            value = GPIO_CS5381_M_SINGLE;
      else if (params_rate(params) <= 108000)
            value = GPIO_CS5381_M_DOUBLE;
      else
            value = GPIO_CS5381_M_QUAD;
      oxygen_write16_masked(chip, OXYGEN_GPIO_DATA,
                        value, GPIO_CS5381_M_MASK);
}

static void xonar_gpio_changed(struct oxygen *chip)
{
      struct xonar_data *data = chip->model_data;
      u8 has_power;

      if (!data->is_d2x)
            return;
      has_power = !!(oxygen_read16(chip, OXYGEN_GPIO_DATA)
                   & GPIO_EXT_POWER);
      if (has_power != data->has_power) {
            data->has_power = has_power;
            if (has_power) {
                  snd_printk(KERN_NOTICE "power restored\n");
            } else {
                  snd_printk(KERN_CRIT
                           "Hey! Don't unplug the power cable!\n");
                  /* TODO: stop PCMs */
            }
      }
}

static void mute_ac97_ctl(struct oxygen *chip, unsigned int control)
{
      unsigned int index = chip->controls[control]->private_value & 0xff;
      u16 value;

      value = oxygen_read_ac97(chip, 0, index);
      if (!(value & 0x8000)) {
            oxygen_write_ac97(chip, 0, index, value | 0x8000);
            snd_ctl_notify(chip->card, SNDRV_CTL_EVENT_MASK_VALUE,
                         &chip->controls[control]->id);
      }
}

static void xonar_ac97_switch_hook(struct oxygen *chip, unsigned int codec,
                           unsigned int reg, int mute)
{
      if (codec != 0)
            return;
      /* line-in is exclusive */
      switch (reg) {
      case AC97_LINE:
            oxygen_write_ac97_masked(chip, 0, CM9780_GPIO_STATUS,
                               mute ? GPIO_LINE_MUTE : 0,
                               GPIO_LINE_MUTE);
            if (!mute) {
                  mute_ac97_ctl(chip, CONTROL_MIC_CAPTURE_SWITCH);
                  mute_ac97_ctl(chip, CONTROL_CD_CAPTURE_SWITCH);
                  mute_ac97_ctl(chip, CONTROL_AUX_CAPTURE_SWITCH);
            }
            break;
      case AC97_MIC:
      case AC97_CD:
      case AC97_VIDEO:
      case AC97_AUX:
            if (!mute) {
                  oxygen_ac97_set_bits(chip, 0, CM9780_GPIO_STATUS,
                                   GPIO_LINE_MUTE);
                  mute_ac97_ctl(chip, CONTROL_LINE_CAPTURE_SWITCH);
            }
            break;
      }
}

static int pcm1796_volume_info(struct snd_kcontrol *ctl,
                         struct snd_ctl_elem_info *info)
{
      info->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
      info->count = 8;
      info->value.integer.min = 0x0f;
      info->value.integer.max = 0xff;
      return 0;
}

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) & GPIO_ALT);
      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 | GPIO_ALT;
      else
            new_bits = old_bits & ~GPIO_ALT;
      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_control_filter(struct snd_kcontrol_new *template)
{
      if (!strcmp(template->name, "Master Playback Volume")) {
            template->access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
            template->info = pcm1796_volume_info,
            template->tlv.p = pcm1796_db_scale;
      } else if (!strncmp(template->name, "CD Capture ", 11)) {
            /* CD in is actually connected to the video in pin */
            template->private_value ^= AC97_CD ^ AC97_VIDEO;
      } else if (!strcmp(template->name, "Line Capture Volume")) {
            return 1; /* line-in bypasses the AC'97 mixer */
      }
      return 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,
      .control_filter = xonar_control_filter,
      .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,
      .ac97_switch_hook = xonar_ac97_switch_hook,
      .gpio_changed = xonar_gpio_changed,
      .model_data_size = sizeof(struct xonar_data),
      .dac_channels = 8,
      .used_channels = OXYGEN_CHANNEL_B |
                   OXYGEN_CHANNEL_C |
                   OXYGEN_CHANNEL_SPDIF |
                   OXYGEN_CHANNEL_MULTICH,
      .function_flags = OXYGEN_FUNCTION_ENABLE_SPI_4_5,
      .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
      .adc_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
};

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], 1, &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)

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