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Linux/sound/pci/mixart/mixart.h

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  1 /*
  2  * Driver for Digigram miXart soundcards
  3  *
  4  * main header file
  5  *
  6  * Copyright (c) 2003 by Digigram <alsa@digigram.com>
  7  *
  8  *   This program is free software; you can redistribute it and/or modify
  9  *   it under the terms of the GNU General Public License as published by
 10  *   the Free Software Foundation; either version 2 of the License, or
 11  *   (at your option) any later version.
 12  *
 13  *   This program is distributed in the hope that it will be useful,
 14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 16  *   GNU General Public License for more details.
 17  *
 18  *   You should have received a copy of the GNU General Public License
 19  *   along with this program; if not, write to the Free Software
 20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 21  */
 22 
 23 #ifndef __SOUND_MIXART_H
 24 #define __SOUND_MIXART_H
 25 
 26 #include <linux/interrupt.h>
 27 #include <linux/mutex.h>
 28 #include <sound/pcm.h>
 29 
 30 #define MIXART_DRIVER_VERSION   0x000100        /* 0.1.0 */
 31 
 32 
 33 /*
 34  */
 35 
 36 struct mixart_uid {
 37         u32 object_id;
 38         u32 desc;
 39 };
 40 
 41 struct mem_area {
 42         unsigned long phys;
 43         void __iomem *virt;
 44         struct resource *res;
 45 };
 46 
 47 
 48 struct mixart_route {
 49         unsigned char connected;
 50         unsigned char phase_inv;
 51         int volume;
 52 };
 53 
 54 
 55 /* firmware status codes  */
 56 #define MIXART_MOTHERBOARD_XLX_INDEX  0
 57 #define MIXART_MOTHERBOARD_ELF_INDEX  1
 58 #define MIXART_AESEBUBOARD_XLX_INDEX  2
 59 #define MIXART_HARDW_FILES_MAX_INDEX  3  /* xilinx, elf, AESEBU xilinx */
 60 
 61 #define MIXART_MAX_CARDS        4
 62 #define MSG_FIFO_SIZE           16
 63 
 64 #define MIXART_MAX_PHYS_CONNECTORS  (MIXART_MAX_CARDS * 2 * 2) /* 4 * stereo * (analog+digital) */
 65 
 66 struct mixart_mgr {
 67         unsigned int num_cards;
 68         struct snd_mixart *chip[MIXART_MAX_CARDS];
 69 
 70         struct pci_dev *pci;
 71 
 72         int irq;
 73 
 74         /* memory-maps */
 75         struct mem_area mem[2];
 76 
 77         /* share the name */
 78         char shortname[32];         /* short name of this soundcard */
 79         char longname[80];          /* name of this soundcard */
 80 
 81         /* one and only blocking message or notification may be pending  */
 82         u32 pending_event;
 83         wait_queue_head_t msg_sleep;
 84 
 85         /* messages fifo */
 86         u32 msg_fifo[MSG_FIFO_SIZE];
 87         int msg_fifo_readptr;
 88         int msg_fifo_writeptr;
 89         atomic_t msg_processed;       /* number of messages to be processed in takslet */
 90 
 91         struct mutex lock;              /* interrupt lock */
 92         struct mutex msg_lock;          /* mailbox lock */
 93 
 94         struct mutex setup_mutex; /* mutex used in hw_params, open and close */
 95 
 96         /* hardware interface */
 97         unsigned int dsp_loaded;      /* bit flags of loaded dsp indices */
 98         unsigned int board_type;      /* read from embedded once elf file is loaded, 250 = miXart8, 251 = with AES, 252 = with Cobranet */
 99 
100         struct snd_dma_buffer flowinfo;
101         struct snd_dma_buffer bufferinfo;
102 
103         struct mixart_uid         uid_console_manager;
104         int sample_rate;
105         int ref_count_rate;
106 
107         struct mutex mixer_mutex; /* mutex for mixer */
108 
109 };
110 
111 
112 #define MIXART_STREAM_STATUS_FREE       0
113 #define MIXART_STREAM_STATUS_OPEN       1
114 #define MIXART_STREAM_STATUS_RUNNING    2
115 #define MIXART_STREAM_STATUS_DRAINING   3
116 #define MIXART_STREAM_STATUS_PAUSE      4
117 
118 #define MIXART_PLAYBACK_STREAMS         4
119 #define MIXART_CAPTURE_STREAMS          1
120 
121 #define MIXART_PCM_ANALOG               0
122 #define MIXART_PCM_DIGITAL              1
123 #define MIXART_PCM_TOTAL                2
124 
125 #define MIXART_MAX_STREAM_PER_CARD  (MIXART_PCM_TOTAL * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS) )
126 
127 
128 #define MIXART_NOTIFY_CARD_MASK         0xF000
129 #define MIXART_NOTIFY_CARD_OFFSET       12
130 #define MIXART_NOTIFY_PCM_MASK          0x0F00
131 #define MIXART_NOTIFY_PCM_OFFSET        8
132 #define MIXART_NOTIFY_CAPT_MASK         0x0080
133 #define MIXART_NOTIFY_SUBS_MASK         0x007F
134 
135 
136 struct mixart_stream {
137         struct snd_pcm_substream *substream;
138         struct mixart_pipe *pipe;
139         int pcm_number;
140 
141         int status;      /* nothing, running, draining */
142 
143         u64  abs_period_elapsed;  /* last absolute stream position where period_elapsed was called (multiple of runtime->period_size) */
144         u32  buf_periods;         /* periods counter in the buffer (< runtime->periods) */
145         u32  buf_period_frag;     /* defines with buf_period_pos the exact position in the buffer (< runtime->period_size) */
146 
147         int channels;
148 };
149 
150 
151 enum mixart_pipe_status {
152         PIPE_UNDEFINED,
153         PIPE_STOPPED,
154         PIPE_RUNNING,
155         PIPE_CLOCK_SET
156 };
157 
158 struct mixart_pipe {
159         struct mixart_uid group_uid;                    /* id of the pipe, as returned by embedded */
160         int          stream_count;
161         struct mixart_uid uid_left_connector;   /* UID's for the audio connectors */
162         struct mixart_uid uid_right_connector;
163         enum mixart_pipe_status status;
164         int references;             /* number of subs openned */
165         int monitoring;             /* pipe used for monitoring issue */
166 };
167 
168 
169 struct snd_mixart {
170         struct snd_card *card;
171         struct mixart_mgr *mgr;
172         int chip_idx;               /* zero based */
173         struct snd_hwdep *hwdep;            /* DSP loader, only for the first card */
174 
175         struct snd_pcm *pcm;             /* PCM analog i/o */
176         struct snd_pcm *pcm_dig;         /* PCM digital i/o */
177 
178         /* allocate stereo pipe for instance */
179         struct mixart_pipe pipe_in_ana;
180         struct mixart_pipe pipe_out_ana;
181 
182         /* if AES/EBU daughter board is available, additional pipes possible on pcm_dig */
183         struct mixart_pipe pipe_in_dig;
184         struct mixart_pipe pipe_out_dig;
185 
186         struct mixart_stream playback_stream[MIXART_PCM_TOTAL][MIXART_PLAYBACK_STREAMS]; /* 0 = pcm, 1 = pcm_dig */
187         struct mixart_stream capture_stream[MIXART_PCM_TOTAL];                           /* 0 = pcm, 1 = pcm_dig */
188 
189         /* UID's for the physical io's */
190         struct mixart_uid uid_out_analog_physio;
191         struct mixart_uid uid_in_analog_physio;
192 
193         int analog_playback_active[2];          /* Mixer : Master Playback active (!mute) */
194         int analog_playback_volume[2];          /* Mixer : Master Playback Volume */
195         int analog_capture_volume[2];           /* Mixer : Master Capture Volume */
196         int digital_playback_active[2*MIXART_PLAYBACK_STREAMS][2];      /* Mixer : Digital Playback Active [(analog+AES output)*streams][stereo]*/
197         int digital_playback_volume[2*MIXART_PLAYBACK_STREAMS][2];      /* Mixer : Digital Playback Volume [(analog+AES output)*streams][stereo]*/
198         int digital_capture_volume[2][2];       /* Mixer : Digital Capture Volume [analog+AES output][stereo] */
199         int monitoring_active[2];               /* Mixer : Monitoring Active */
200         int monitoring_volume[2];               /* Mixer : Monitoring Volume */
201 };
202 
203 struct mixart_bufferinfo
204 {
205         u32 buffer_address;
206         u32 reserved[5];
207         u32 available_length;
208         u32 buffer_id;
209 };
210 
211 struct mixart_flowinfo
212 {
213         u32 bufferinfo_array_phy_address;
214         u32 reserved[11];
215         u32 bufferinfo_count;
216         u32 capture;
217 };
218 
219 /* exported */
220 int snd_mixart_create_pcm(struct snd_mixart * chip);
221 struct mixart_pipe *snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture, int monitoring);
222 int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr, struct mixart_pipe *pipe, int monitoring);
223 
224 #endif /* __SOUND_MIXART_H */
225 

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