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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         /* one and only blocking message or notification may be pending  */
 78         u32 pending_event;
 79         wait_queue_head_t msg_sleep;
 80 
 81         /* messages fifo */
 82         u32 msg_fifo[MSG_FIFO_SIZE];
 83         int msg_fifo_readptr;
 84         int msg_fifo_writeptr;
 85         atomic_t msg_processed;       /* number of messages to be processed in tasklet */
 86 
 87         struct mutex lock;              /* interrupt lock */
 88         struct mutex msg_lock;          /* mailbox lock */
 89 
 90         struct mutex setup_mutex; /* mutex used in hw_params, open and close */
 91 
 92         /* hardware interface */
 93         unsigned int dsp_loaded;      /* bit flags of loaded dsp indices */
 94         unsigned int board_type;      /* read from embedded once elf file is loaded, 250 = miXart8, 251 = with AES, 252 = with Cobranet */
 95 
 96         struct snd_dma_buffer flowinfo;
 97         struct snd_dma_buffer bufferinfo;
 98 
 99         struct mixart_uid         uid_console_manager;
100         int sample_rate;
101         int ref_count_rate;
102 
103         struct mutex mixer_mutex; /* mutex for mixer */
104 
105 };
106 
107 
108 #define MIXART_STREAM_STATUS_FREE       0
109 #define MIXART_STREAM_STATUS_OPEN       1
110 #define MIXART_STREAM_STATUS_RUNNING    2
111 #define MIXART_STREAM_STATUS_DRAINING   3
112 #define MIXART_STREAM_STATUS_PAUSE      4
113 
114 #define MIXART_PLAYBACK_STREAMS         4
115 #define MIXART_CAPTURE_STREAMS          1
116 
117 #define MIXART_PCM_ANALOG               0
118 #define MIXART_PCM_DIGITAL              1
119 #define MIXART_PCM_TOTAL                2
120 
121 #define MIXART_MAX_STREAM_PER_CARD  (MIXART_PCM_TOTAL * (MIXART_PLAYBACK_STREAMS + MIXART_CAPTURE_STREAMS) )
122 
123 
124 #define MIXART_NOTIFY_CARD_MASK         0xF000
125 #define MIXART_NOTIFY_CARD_OFFSET       12
126 #define MIXART_NOTIFY_PCM_MASK          0x0F00
127 #define MIXART_NOTIFY_PCM_OFFSET        8
128 #define MIXART_NOTIFY_CAPT_MASK         0x0080
129 #define MIXART_NOTIFY_SUBS_MASK         0x007F
130 
131 
132 struct mixart_stream {
133         struct snd_pcm_substream *substream;
134         struct mixart_pipe *pipe;
135         int pcm_number;
136 
137         int status;      /* nothing, running, draining */
138 
139         u64  abs_period_elapsed;  /* last absolute stream position where period_elapsed was called (multiple of runtime->period_size) */
140         u32  buf_periods;         /* periods counter in the buffer (< runtime->periods) */
141         u32  buf_period_frag;     /* defines with buf_period_pos the exact position in the buffer (< runtime->period_size) */
142 
143         int channels;
144 };
145 
146 
147 enum mixart_pipe_status {
148         PIPE_UNDEFINED,
149         PIPE_STOPPED,
150         PIPE_RUNNING,
151         PIPE_CLOCK_SET
152 };
153 
154 struct mixart_pipe {
155         struct mixart_uid group_uid;                    /* id of the pipe, as returned by embedded */
156         int          stream_count;
157         struct mixart_uid uid_left_connector;   /* UID's for the audio connectors */
158         struct mixart_uid uid_right_connector;
159         enum mixart_pipe_status status;
160         int references;             /* number of subs openned */
161         int monitoring;             /* pipe used for monitoring issue */
162 };
163 
164 
165 struct snd_mixart {
166         struct snd_card *card;
167         struct mixart_mgr *mgr;
168         int chip_idx;               /* zero based */
169         struct snd_hwdep *hwdep;            /* DSP loader, only for the first card */
170 
171         struct snd_pcm *pcm;             /* PCM analog i/o */
172         struct snd_pcm *pcm_dig;         /* PCM digital i/o */
173 
174         /* allocate stereo pipe for instance */
175         struct mixart_pipe pipe_in_ana;
176         struct mixart_pipe pipe_out_ana;
177 
178         /* if AES/EBU daughter board is available, additional pipes possible on pcm_dig */
179         struct mixart_pipe pipe_in_dig;
180         struct mixart_pipe pipe_out_dig;
181 
182         struct mixart_stream playback_stream[MIXART_PCM_TOTAL][MIXART_PLAYBACK_STREAMS]; /* 0 = pcm, 1 = pcm_dig */
183         struct mixart_stream capture_stream[MIXART_PCM_TOTAL];                           /* 0 = pcm, 1 = pcm_dig */
184 
185         /* UID's for the physical io's */
186         struct mixart_uid uid_out_analog_physio;
187         struct mixart_uid uid_in_analog_physio;
188 
189         int analog_playback_active[2];          /* Mixer : Master Playback active (!mute) */
190         int analog_playback_volume[2];          /* Mixer : Master Playback Volume */
191         int analog_capture_volume[2];           /* Mixer : Master Capture Volume */
192         int digital_playback_active[2*MIXART_PLAYBACK_STREAMS][2];      /* Mixer : Digital Playback Active [(analog+AES output)*streams][stereo]*/
193         int digital_playback_volume[2*MIXART_PLAYBACK_STREAMS][2];      /* Mixer : Digital Playback Volume [(analog+AES output)*streams][stereo]*/
194         int digital_capture_volume[2][2];       /* Mixer : Digital Capture Volume [analog+AES output][stereo] */
195         int monitoring_active[2];               /* Mixer : Monitoring Active */
196         int monitoring_volume[2];               /* Mixer : Monitoring Volume */
197 };
198 
199 struct mixart_bufferinfo
200 {
201         u32 buffer_address;
202         u32 reserved[5];
203         u32 available_length;
204         u32 buffer_id;
205 };
206 
207 struct mixart_flowinfo
208 {
209         u32 bufferinfo_array_phy_address;
210         u32 reserved[11];
211         u32 bufferinfo_count;
212         u32 capture;
213 };
214 
215 /* exported */
216 int snd_mixart_create_pcm(struct snd_mixart * chip);
217 struct mixart_pipe *snd_mixart_add_ref_pipe(struct snd_mixart *chip, int pcm_number, int capture, int monitoring);
218 int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr, struct mixart_pipe *pipe, int monitoring);
219 
220 #endif /* __SOUND_MIXART_H */
221 

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