ALSA: lx6464es - driver for the digigram lx6464es interface
prototype of a driver for the digigram lx6464es 64 channel ethersound
interface.
Signed-off-by: Tim Blechmann <tim@klingt.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/lx6464es/lx6464es.h b/sound/pci/lx6464es/lx6464es.h
new file mode 100644
index 0000000..012c010
--- /dev/null
+++ b/sound/pci/lx6464es/lx6464es.h
@@ -0,0 +1,114 @@
+/* -*- linux-c -*- *
+ *
+ * ALSA driver for the digigram lx6464es interface
+ *
+ * Copyright (c) 2009 Tim Blechmann <tim@klingt.org>
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 program; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ *
+ */
+
+#ifndef LX6464ES_H
+#define LX6464ES_H
+
+#include <linux/spinlock.h>
+#include <asm/atomic.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+
+#include "lx_core.h"
+
+#define LXP "LX6464ES: "
+
+enum {
+ ES_cmd_free = 0, /* no command executing */
+ ES_cmd_processing = 1, /* execution of a read/write command */
+ ES_read_pending = 2, /* a asynchron read command is pending */
+ ES_read_finishing = 3, /* a read command has finished waiting (set by
+ * Interrupt or CancelIrp) */
+};
+
+enum lx_stream_status {
+ LX_STREAM_STATUS_FREE,
+/* LX_STREAM_STATUS_OPEN, */
+ LX_STREAM_STATUS_SCHEDULE_RUN,
+/* LX_STREAM_STATUS_STARTED, */
+ LX_STREAM_STATUS_RUNNING,
+ LX_STREAM_STATUS_SCHEDULE_STOP,
+/* LX_STREAM_STATUS_STOPPED, */
+/* LX_STREAM_STATUS_PAUSED */
+};
+
+
+struct lx_stream {
+ struct snd_pcm_substream *stream;
+ snd_pcm_uframes_t frame_pos;
+ enum lx_stream_status status; /* free, open, running, draining
+ * pause */
+ int is_capture:1;
+};
+
+
+struct lx6464es {
+ struct snd_card *card;
+ struct pci_dev *pci;
+ int irq;
+
+ spinlock_t lock; /* interrupt spinlock */
+ struct mutex setup_mutex; /* mutex used in hw_params, open
+ * and close */
+
+ struct tasklet_struct trigger_tasklet; /* trigger tasklet */
+ struct tasklet_struct tasklet_capture;
+ struct tasklet_struct tasklet_playback;
+
+ /* ports */
+ unsigned long port_plx; /* io port (size=256) */
+ void __iomem *port_plx_remapped; /* remapped plx port */
+ void __iomem *port_dsp_bar; /* memory port (32-bit,
+ * non-prefetchable,
+ * size=8K) */
+
+ /* messaging */
+ spinlock_t msg_lock; /* message spinlock */
+ atomic_t send_message_locked;
+ struct lx_rmh rmh;
+
+ /* configuration */
+ uint freq_ratio : 2;
+ uint playback_mute : 1;
+ uint hardware_running[2];
+ u32 board_sample_rate; /* sample rate read from
+ * board */
+ u32 sample_rate; /* our sample rate */
+ u16 pcm_granularity; /* board blocksize */
+
+ /* dma */
+ struct snd_dma_buffer capture_dma_buf;
+ struct snd_dma_buffer playback_dma_buf;
+
+ /* pcm */
+ struct snd_pcm *pcm;
+
+ /* streams */
+ struct lx_stream capture_stream;
+ struct lx_stream playback_stream;
+};
+
+
+#endif /* LX6464ES_H */