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Like the previous patch for VX boards, miXart device driver can be also rewritten to use nonatomic PCM ops. Simply spinlocks are replaced with mutex, the tasklet code is merged into the threaded irq handler. Also, now mgr->msg_mutex is superfluous, so merged to msg_lock. Signed-off-by: Takashi Iwai <tiwai@suse.de>
225 lines
6.6 KiB
C
225 lines
6.6 KiB
C
/*
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* Driver for Digigram miXart soundcards
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*
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* main header file
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*
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* Copyright (c) 2003 by Digigram <alsa@digigram.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __SOUND_MIXART_H
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#define __SOUND_MIXART_H
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#include <linux/interrupt.h>
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#include <linux/mutex.h>
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#include <sound/pcm.h>
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#define MIXART_DRIVER_VERSION 0x000100 /* 0.1.0 */
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/*
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*/
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struct mixart_uid {
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u32 object_id;
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u32 desc;
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};
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struct mem_area {
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unsigned long phys;
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void __iomem *virt;
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struct resource *res;
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};
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struct mixart_route {
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unsigned char connected;
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unsigned char phase_inv;
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int volume;
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};
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/* firmware status codes */
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#define MIXART_MOTHERBOARD_XLX_INDEX 0
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#define MIXART_MOTHERBOARD_ELF_INDEX 1
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#define MIXART_AESEBUBOARD_XLX_INDEX 2
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#define MIXART_HARDW_FILES_MAX_INDEX 3 /* xilinx, elf, AESEBU xilinx */
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#define MIXART_MAX_CARDS 4
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#define MSG_FIFO_SIZE 16
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#define MIXART_MAX_PHYS_CONNECTORS (MIXART_MAX_CARDS * 2 * 2) /* 4 * stereo * (analog+digital) */
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struct mixart_mgr {
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unsigned int num_cards;
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struct snd_mixart *chip[MIXART_MAX_CARDS];
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struct pci_dev *pci;
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int irq;
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/* memory-maps */
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struct mem_area mem[2];
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/* share the name */
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char shortname[32]; /* short name of this soundcard */
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char longname[80]; /* name of this soundcard */
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/* one and only blocking message or notification may be pending */
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u32 pending_event;
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wait_queue_head_t msg_sleep;
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/* messages fifo */
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u32 msg_fifo[MSG_FIFO_SIZE];
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int msg_fifo_readptr;
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int msg_fifo_writeptr;
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atomic_t msg_processed; /* number of messages to be processed in takslet */
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struct mutex lock; /* interrupt lock */
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struct mutex msg_lock; /* mailbox lock */
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struct mutex setup_mutex; /* mutex used in hw_params, open and close */
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/* hardware interface */
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unsigned int dsp_loaded; /* bit flags of loaded dsp indices */
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unsigned int board_type; /* read from embedded once elf file is loaded, 250 = miXart8, 251 = with AES, 252 = with Cobranet */
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struct snd_dma_buffer flowinfo;
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struct snd_dma_buffer bufferinfo;
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struct mixart_uid uid_console_manager;
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int sample_rate;
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int ref_count_rate;
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struct mutex mixer_mutex; /* mutex for mixer */
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};
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#define MIXART_STREAM_STATUS_FREE 0
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#define MIXART_STREAM_STATUS_OPEN 1
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#define MIXART_STREAM_STATUS_RUNNING 2
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#define MIXART_STREAM_STATUS_DRAINING 3
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#define MIXART_STREAM_STATUS_PAUSE 4
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#define MIXART_PLAYBACK_STREAMS 4
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#define MIXART_CAPTURE_STREAMS 1
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#define MIXART_PCM_ANALOG 0
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#define MIXART_PCM_DIGITAL 1
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#define MIXART_PCM_TOTAL 2
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#define MIXART_MAX_STREAM_PER_CARD (MIXART_PCM_TOTAL * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS) )
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#define MIXART_NOTIFY_CARD_MASK 0xF000
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#define MIXART_NOTIFY_CARD_OFFSET 12
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#define MIXART_NOTIFY_PCM_MASK 0x0F00
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#define MIXART_NOTIFY_PCM_OFFSET 8
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#define MIXART_NOTIFY_CAPT_MASK 0x0080
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#define MIXART_NOTIFY_SUBS_MASK 0x007F
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struct mixart_stream {
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struct snd_pcm_substream *substream;
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struct mixart_pipe *pipe;
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int pcm_number;
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int status; /* nothing, running, draining */
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u64 abs_period_elapsed; /* last absolute stream position where period_elapsed was called (multiple of runtime->period_size) */
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u32 buf_periods; /* periods counter in the buffer (< runtime->periods) */
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u32 buf_period_frag; /* defines with buf_period_pos the exact position in the buffer (< runtime->period_size) */
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int channels;
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};
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enum mixart_pipe_status {
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PIPE_UNDEFINED,
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PIPE_STOPPED,
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PIPE_RUNNING,
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PIPE_CLOCK_SET
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};
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struct mixart_pipe {
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struct mixart_uid group_uid; /* id of the pipe, as returned by embedded */
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int stream_count;
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struct mixart_uid uid_left_connector; /* UID's for the audio connectors */
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struct mixart_uid uid_right_connector;
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enum mixart_pipe_status status;
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int references; /* number of subs openned */
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int monitoring; /* pipe used for monitoring issue */
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};
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struct snd_mixart {
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struct snd_card *card;
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struct mixart_mgr *mgr;
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int chip_idx; /* zero based */
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struct snd_hwdep *hwdep; /* DSP loader, only for the first card */
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struct snd_pcm *pcm; /* PCM analog i/o */
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struct snd_pcm *pcm_dig; /* PCM digital i/o */
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/* allocate stereo pipe for instance */
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struct mixart_pipe pipe_in_ana;
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struct mixart_pipe pipe_out_ana;
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/* if AES/EBU daughter board is available, additional pipes possible on pcm_dig */
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struct mixart_pipe pipe_in_dig;
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struct mixart_pipe pipe_out_dig;
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struct mixart_stream playback_stream[MIXART_PCM_TOTAL][MIXART_PLAYBACK_STREAMS]; /* 0 = pcm, 1 = pcm_dig */
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struct mixart_stream capture_stream[MIXART_PCM_TOTAL]; /* 0 = pcm, 1 = pcm_dig */
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/* UID's for the physical io's */
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struct mixart_uid uid_out_analog_physio;
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struct mixart_uid uid_in_analog_physio;
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int analog_playback_active[2]; /* Mixer : Master Playback active (!mute) */
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int analog_playback_volume[2]; /* Mixer : Master Playback Volume */
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int analog_capture_volume[2]; /* Mixer : Master Capture Volume */
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int digital_playback_active[2*MIXART_PLAYBACK_STREAMS][2]; /* Mixer : Digital Playback Active [(analog+AES output)*streams][stereo]*/
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int digital_playback_volume[2*MIXART_PLAYBACK_STREAMS][2]; /* Mixer : Digital Playback Volume [(analog+AES output)*streams][stereo]*/
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int digital_capture_volume[2][2]; /* Mixer : Digital Capture Volume [analog+AES output][stereo] */
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int monitoring_active[2]; /* Mixer : Monitoring Active */
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int monitoring_volume[2]; /* Mixer : Monitoring Volume */
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};
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struct mixart_bufferinfo
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{
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u32 buffer_address;
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u32 reserved[5];
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u32 available_length;
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u32 buffer_id;
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};
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struct mixart_flowinfo
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{
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u32 bufferinfo_array_phy_address;
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u32 reserved[11];
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u32 bufferinfo_count;
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u32 capture;
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};
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/* exported */
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int snd_mixart_create_pcm(struct snd_mixart * chip);
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struct mixart_pipe *snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture, int monitoring);
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int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr, struct mixart_pipe *pipe, int monitoring);
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#endif /* __SOUND_MIXART_H */
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