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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /sound/pci/lx6464es/lx6464es.h | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/pci/lx6464es/lx6464es.h')
-rw-r--r-- | sound/pci/lx6464es/lx6464es.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/sound/pci/lx6464es/lx6464es.h b/sound/pci/lx6464es/lx6464es.h new file mode 100644 index 000000000..1cfe10d23 --- /dev/null +++ b/sound/pci/lx6464es/lx6464es.h @@ -0,0 +1,95 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* -*- linux-c -*- * + * + * ALSA driver for the digigram lx6464es interface + * + * Copyright (c) 2009 Tim Blechmann <tim@klingt.org> + */ + +#ifndef LX6464ES_H +#define LX6464ES_H + +#include <linux/spinlock.h> +#include <linux/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 */ + unsigned int is_capture:1; +}; + + +struct lx6464es { + struct snd_card *card; + struct pci_dev *pci; + int irq; + + u8 mac_address[6]; + + struct mutex lock; /* interrupt lock */ + struct mutex setup_mutex; /* mutex used in hw_params, open + * and close */ + + /* 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 */ + struct mutex msg_lock; /* message lock */ + struct lx_rmh rmh; + u32 irqsrc; + + /* configuration */ + uint freq_ratio : 2; + uint playback_mute : 1; + uint hardware_running[2]; + u32 board_sample_rate; /* sample rate read from + * board */ + 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 */ |