ALSA: add Studio Evolution SE6X support

Add a driver for an embedded sound card.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

2 files changed, 162 insertions, 0 deletions

diff --git a/sound/pci/oxygen/Makefile b/sound/pci/oxygen/Makefile
index 8f4c409f7e45..ab085d753661 100644
--- a/sound/pci/oxygen/Makefile
+++ b/sound/pci/oxygen/Makefile
@@ -1,8 +1,10 @@
 snd-oxygen-lib-objs := oxygen_io.o oxygen_lib.o oxygen_mixer.o oxygen_pcm.o
 snd-oxygen-objs := oxygen.o xonar_dg_mixer.o xonar_dg.o
+snd-se6x-objs := se6x.o
 snd-virtuoso-objs := virtuoso.o xonar_lib.o \
         xonar_pcm179x.o xonar_cs43xx.o xonar_wm87x6.o xonar_hdmi.o
 
 obj-$(CONFIG_SND_OXYGEN_LIB) += snd-oxygen-lib.o
 obj-$(CONFIG_SND_OXYGEN) += snd-oxygen.o
+obj-$(CONFIG_SND_SE6X) += snd-se6x.o
 obj-$(CONFIG_SND_VIRTUOSO) += snd-virtuoso.o
diff --git a/sound/pci/oxygen/se6x.c b/sound/pci/oxygen/se6x.c
new file mode 100644
index 000000000000..f70d514c1084
--- /dev/null
+++ b/sound/pci/oxygen/se6x.c
@@ -0,0 +1,160 @@
+/*
+ * C-Media CMI8787 driver for the Studio Evolution SE6X
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+/*
+ * CMI8787:
+ *
+ *   SPI    -> microcontroller (not actually used)
+ *   GPIO 0 -> do.
+ *   GPIO 2 -> do.
+ *
+ *   DAC0   -> both PCM1792A (L+R, each in mono mode)
+ *   ADC1  <-  1st PCM1804
+ *   ADC2  <-  2nd PCM1804
+ *   ADC3  <-  3rd PCM1804
+ */
+
+#include <linux/pci.h>
+#include <linux/module.h>
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include "oxygen.h"
+
+MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
+MODULE_DESCRIPTION("Studio Evolution SE6X driver");
+MODULE_LICENSE("GPL v2");
+MODULE_SUPPORTED_DEVICE("{{Studio Evolution,SE6X}}");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static bool 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 const struct pci_device_id se6x_ids[] = {
+        { OXYGEN_PCI_SUBID(0x13f6, 0x8788) },
+        { }
+};
+MODULE_DEVICE_TABLE(pci, se6x_ids);
+
+static void se6x_init(struct oxygen *chip)
+{
+        oxygen_set_bits16(chip, OXYGEN_GPIO_CONTROL, 0x005);
+
+        snd_component_add(chip->card, "PCM1792A");
+        snd_component_add(chip->card, "PCM1804");
+}
+
+static int se6x_control_filter(struct snd_kcontrol_new *template)
+{
+        /* no DAC volume/mute */
+        if (!strncmp(template->name, "Master Playback ", 16))
+                return 1;
+        return 0;
+}
+
+static void se6x_cleanup(struct oxygen *chip)
+{
+}
+
+static void set_pcm1792a_params(struct oxygen *chip,
+                                struct snd_pcm_hw_params *params)
+{
+        /* nothing to do (the microcontroller monitors DAC_LRCK) */
+}
+
+static void set_pcm1804_params(struct oxygen *chip,
+                               struct snd_pcm_hw_params *params)
+{
+}
+
+static unsigned int se6x_adjust_dac_routing(struct oxygen *chip,
+                                            unsigned int play_routing)
+{
+        /* route the same stereo pair to DAC0 and DAC1 */
+        return ( play_routing       & OXYGEN_PLAY_DAC0_SOURCE_MASK) |
+               ((play_routing << 2) & OXYGEN_PLAY_DAC1_SOURCE_MASK);
+}
+
+static const struct oxygen_model model_se6x = {
+        .shortname = "Studio Evolution SE6X",
+        .longname = "C-Media Oxygen HD Audio",
+        .chip = "CMI8787",
+        .init = se6x_init,
+        .control_filter = se6x_control_filter,
+        .cleanup = se6x_cleanup,
+        .set_dac_params = set_pcm1792a_params,
+        .set_adc_params = set_pcm1804_params,
+        .adjust_dac_routing = se6x_adjust_dac_routing,
+        .device_config = PLAYBACK_0_TO_I2S |
+                         CAPTURE_0_FROM_I2S_1 |
+                         CAPTURE_2_FROM_I2S_2 |
+                         CAPTURE_3_FROM_I2S_3,
+        .dac_channels_pcm = 2,
+        .function_flags = OXYGEN_FUNCTION_SPI,
+        .dac_mclks = OXYGEN_MCLKS(256, 128, 128),
+        .adc_mclks = OXYGEN_MCLKS(256, 256, 128),
+        .dac_i2s_format = OXYGEN_I2S_FORMAT_LJUST,
+        .adc_i2s_format = OXYGEN_I2S_FORMAT_I2S,
+};
+
+static int se6x_get_model(struct oxygen *chip,
+                          const struct pci_device_id *pci_id)
+{
+        chip->model = model_se6x;
+        return 0;
+}
+
+static int se6x_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], THIS_MODULE,
+                               se6x_ids, se6x_get_model);
+        if (err >= 0)
+                ++dev;
+        return err;
+}
+
+static struct pci_driver se6x_driver = {
+        .name = KBUILD_MODNAME,
+        .id_table = se6x_ids,
+        .probe = se6x_probe,
+        .remove = oxygen_pci_remove,
+#ifdef CONFIG_PM_SLEEP
+        .driver = {
+                .pm = &oxygen_pci_pm,
+        },
+#endif
+        .shutdown = oxygen_pci_shutdown,
+};
+
+module_pci_driver(se6x_driver);