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au88x0.h
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1 /*
2  * This program is free software; you can redistribute it and/or modify
3  * it under the terms of the GNU General Public License as published by
4  * the Free Software Foundation; either version 2 of the License, or
5  * (at your option) any later version.
6  *
7  * This program is distributed in the hope that it will be useful,
8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10  * GNU Library General Public License for more details.
11  *
12  * You should have received a copy of the GNU General Public License
13  * along with this program; if not, write to the Free Software
14  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
15  */
16 
17 #ifndef __SOUND_AU88X0_H
18 #define __SOUND_AU88X0_H
19 
20 #ifdef __KERNEL__
21 #include <linux/pci.h>
22 #include <asm/io.h>
23 #include <sound/core.h>
24 #include <sound/pcm.h>
25 #include <sound/rawmidi.h>
26 #include <sound/mpu401.h>
27 #include <sound/hwdep.h>
28 #include <sound/ac97_codec.h>
29 #include <sound/tlv.h>
30 #endif
31 
32 #ifndef CHIP_AU8820
33 #include "au88x0_eq.h"
34 #include "au88x0_a3d.h"
35 #endif
36 #ifndef CHIP_AU8810
37 #include "au88x0_wt.h"
38 #endif
39 
40 #define hwread(x,y) readl((x)+(y))
41 #define hwwrite(x,y,z) writel((z),(x)+(y))
42 
43 /* Vortex MPU401 defines. */
44 #define MIDI_CLOCK_DIV 0x61
45 /* Standart MPU401 defines. */
46 #define MPU401_RESET 0xff
47 #define MPU401_ENTER_UART 0x3f
48 #define MPU401_ACK 0xfe
49 
50 // Get src register value to convert from x to y.
51 #define SRC_RATIO(x,y) ((((x<<15)/y) + 1)/2)
52 
53 /* FIFO software state constants. */
54 #define FIFO_STOP 0
55 #define FIFO_START 1
56 #define FIFO_PAUSE 2
57 
58 /* IRQ flags */
59 #define IRQ_ERR_MASK 0x00ff
60 #define IRQ_FATAL 0x0001
61 #define IRQ_PARITY 0x0002
62 #define IRQ_REG 0x0004
63 #define IRQ_FIFO 0x0008
64 #define IRQ_DMA 0x0010
65 #define IRQ_PCMOUT 0x0020 /* PCM OUT page crossing */
66 #define IRQ_TIMER 0x1000
67 #define IRQ_MIDI 0x2000
68 #define IRQ_MODEM 0x4000
69 
70 /* ADB Resource */
71 #define VORTEX_RESOURCE_DMA 0x00000000
72 #define VORTEX_RESOURCE_SRC 0x00000001
73 #define VORTEX_RESOURCE_MIXIN 0x00000002
74 #define VORTEX_RESOURCE_MIXOUT 0x00000003
75 #define VORTEX_RESOURCE_A3D 0x00000004
76 #define VORTEX_RESOURCE_LAST 0x00000005
77 
78 /* codec io: VORTEX_CODEC_IO bits */
79 #define VORTEX_CODEC_ID_SHIFT 24
80 #define VORTEX_CODEC_WRITE 0x00800000
81 #define VORTEX_CODEC_ADDSHIFT 16
82 #define VORTEX_CODEC_ADDMASK 0x7f0000
83 #define VORTEX_CODEC_DATSHIFT 0
84 #define VORTEX_CODEC_DATMASK 0xffff
85 
86 /* Check for SDAC bit in "Extended audio ID" AC97 register */
87 //#define VORTEX_IS_QUAD(x) (((x)->codec == NULL) ? 0 : ((x)->codec->ext_id&0x80))
88 #define VORTEX_IS_QUAD(x) ((x)->isquad)
89 /* Check if chip has bug. */
90 #define IS_BAD_CHIP(x) (\
91  (x->rev == 0xfe && x->device == PCI_DEVICE_ID_AUREAL_VORTEX_2) || \
92  (x->rev == 0xfe && x->device == PCI_DEVICE_ID_AUREAL_ADVANTAGE))
93 
94 
95 /* PCM devices */
96 #define VORTEX_PCM_ADB 0
97 #define VORTEX_PCM_SPDIF 1
98 #define VORTEX_PCM_A3D 2
99 #define VORTEX_PCM_WT 3
100 #define VORTEX_PCM_I2S 4
101 #define VORTEX_PCM_LAST 5
102 
103 #define MIX_CAPT(x) (vortex->mixcapt[x])
104 #define MIX_PLAYB(x) (vortex->mixplayb[x])
105 #define MIX_SPDIF(x) (vortex->mixspdif[x])
106 
107 #define NR_WTPB 0x20 /* WT channels per each bank. */
108 #define NR_PCM 0x10
109 
110 struct pcm_vol {
111  struct snd_kcontrol *kctl;
112  int active;
113  int dma;
114  int mixin[4];
115  int vol[4];
116 };
117 
118 /* Structs */
119 typedef struct {
120  //int this_08; /* Still unknown */
121  int fifo_enabled; /* this_24 */
122  int fifo_status; /* this_1c */
123  u32 dma_ctrl; /* this_78 (ADB), this_7c (WT) */
124  int dma_unknown; /* this_74 (ADB), this_78 (WT). WDM: +8 */
125  int cfg0;
126  int cfg1;
127 
128  int nr_ch; /* Nr of PCM channels in use */
129  int type; /* Output type (ac97, a3d, spdif, i2s, dsp) */
130  int dma; /* Hardware DMA index. */
131  int dir; /* Stream Direction. */
132  u32 resources[5];
133 
134  /* Virtual page extender stuff */
135  int nr_periods;
136  int period_bytes;
137  int period_real;
138  int period_virt;
139 
140  struct snd_pcm_substream *substream;
141 } stream_t;
142 
143 typedef struct snd_vortex vortex_t;
144 struct snd_vortex {
145  /* ALSA structs. */
146  struct snd_card *card;
147  struct snd_pcm *pcm[VORTEX_PCM_LAST];
148 
149  struct snd_rawmidi *rmidi; /* Legacy Midi interface. */
150  struct snd_ac97 *codec;
151 
152  /* Stream structs. */
153  stream_t dma_adb[NR_ADB];
154  int spdif_sr;
155 #ifndef CHIP_AU8810
156  stream_t dma_wt[NR_WT];
157  wt_voice_t wt_voice[NR_WT]; /* WT register cache. */
158  char mixwt[(NR_WT / NR_WTPB) * 6]; /* WT mixin objects */
159 #endif
160 
161  /* Global resources */
162  s8 mixcapt[2];
163  s8 mixplayb[4];
164 #ifndef CHIP_AU8820
165  s8 mixspdif[2];
166  s8 mixa3d[2]; /* mixers which collect all a3d streams. */
167  s8 mixxtlk[2]; /* crosstalk canceler mixer inputs. */
168 #endif
169  u32 fixed_res[5];
170 
171 #ifndef CHIP_AU8820
172  /* Hardware equalizer structs */
173  eqlzr_t eq;
174  /* A3D structs */
175  a3dsrc_t a3d[NR_A3D];
176  /* Xtalk canceler */
177  int xt_mode; /* 1: speakers, 0:headphones. */
178 #endif
179  struct pcm_vol pcm_vol[NR_PCM];
180 
181  int isquad; /* cache of extended ID codec flag. */
182 
183  /* Gameport stuff. */
184  struct gameport *gameport;
185 
186  /* PCI hardware resources */
187  unsigned long io;
188  void __iomem *mmio;
189  unsigned int irq;
190  spinlock_t lock;
191 
192  /* PCI device */
193  struct pci_dev *pci_dev;
194  u16 vendor;
195  u16 device;
196  u8 rev;
197 };
198 
199 /* Functions. */
200 
201 /* SRC */
202 static void vortex_adb_setsrc(vortex_t * vortex, int adbdma,
203  unsigned int cvrt, int dir);
204 
205 /* DMA Engines. */
206 static void vortex_adbdma_setbuffers(vortex_t * vortex, int adbdma,
207  int size, int count);
208 static void vortex_adbdma_setmode(vortex_t * vortex, int adbdma, int ie,
209  int dir, int fmt, int d,
210  u32 offset);
211 static void vortex_adbdma_setstartbuffer(vortex_t * vortex, int adbdma, int sb);
212 #ifndef CHIP_AU8810
213 static void vortex_wtdma_setbuffers(vortex_t * vortex, int wtdma,
214  int size, int count);
215 static void vortex_wtdma_setmode(vortex_t * vortex, int wtdma, int ie, int fmt, int d, /*int e, */
216  u32 offset);
217 static void vortex_wtdma_setstartbuffer(vortex_t * vortex, int wtdma, int sb);
218 #endif
219 
220 static void vortex_adbdma_startfifo(vortex_t * vortex, int adbdma);
221 //static void vortex_adbdma_stopfifo(vortex_t *vortex, int adbdma);
222 static void vortex_adbdma_pausefifo(vortex_t * vortex, int adbdma);
223 static void vortex_adbdma_resumefifo(vortex_t * vortex, int adbdma);
224 static inline int vortex_adbdma_getlinearpos(vortex_t * vortex, int adbdma);
225 static void vortex_adbdma_resetup(vortex_t *vortex, int adbdma);
226 
227 #ifndef CHIP_AU8810
228 static void vortex_wtdma_startfifo(vortex_t * vortex, int wtdma);
229 static void vortex_wtdma_stopfifo(vortex_t * vortex, int wtdma);
230 static void vortex_wtdma_pausefifo(vortex_t * vortex, int wtdma);
231 static void vortex_wtdma_resumefifo(vortex_t * vortex, int wtdma);
232 static inline int vortex_wtdma_getlinearpos(vortex_t * vortex, int wtdma);
233 #endif
234 
235 /* global stuff. */
236 static void vortex_codec_init(vortex_t * vortex);
237 static void vortex_codec_write(struct snd_ac97 * codec, unsigned short addr,
238  unsigned short data);
239 static unsigned short vortex_codec_read(struct snd_ac97 * codec, unsigned short addr);
240 static void vortex_spdif_init(vortex_t * vortex, int spdif_sr, int spdif_mode);
241 
242 static int vortex_core_init(vortex_t * card);
243 static int vortex_core_shutdown(vortex_t * card);
244 static void vortex_enable_int(vortex_t * card);
245 static irqreturn_t vortex_interrupt(int irq, void *dev_id);
246 static int vortex_alsafmt_aspfmt(int alsafmt);
247 
248 /* Connection stuff. */
249 static void vortex_connect_default(vortex_t * vortex, int en);
250 static int vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch,
251  int dir, int type, int subdev);
252 static char vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out,
253  int restype);
254 #ifndef CHIP_AU8810
255 static int vortex_wt_allocroute(vortex_t * vortex, int dma, int nr_ch);
256 static void vortex_wt_connect(vortex_t * vortex, int en);
257 static void vortex_wt_init(vortex_t * vortex);
258 #endif
259 
260 static void vortex_route(vortex_t * vortex, int en, unsigned char channel,
261  unsigned char source, unsigned char dest);
262 #if 0
263 static void vortex_routes(vortex_t * vortex, int en, unsigned char channel,
264  unsigned char source, unsigned char dest0,
265  unsigned char dest1);
266 #endif
267 static void vortex_connection_mixin_mix(vortex_t * vortex, int en,
268  unsigned char mixin,
269  unsigned char mix, int a);
270 static void vortex_mix_setinputvolumebyte(vortex_t * vortex,
271  unsigned char mix, int mixin,
272  unsigned char vol);
273 static void vortex_mix_setvolumebyte(vortex_t * vortex, unsigned char mix,
274  unsigned char vol);
275 
276 /* A3D functions. */
277 #ifndef CHIP_AU8820
278 static void vortex_Vort3D_enable(vortex_t * v);
279 static void vortex_Vort3D_disable(vortex_t * v);
280 static void vortex_Vort3D_connect(vortex_t * vortex, int en);
281 static void vortex_Vort3D_InitializeSource(a3dsrc_t * a, int en);
282 #endif
283 
284 /* Driver stuff. */
285 static int vortex_gameport_register(vortex_t * card);
286 static void vortex_gameport_unregister(vortex_t * card);
287 #ifndef CHIP_AU8820
288 static int vortex_eq_init(vortex_t * vortex);
289 static int vortex_eq_free(vortex_t * vortex);
290 #endif
291 /* ALSA stuff. */
292 static int snd_vortex_new_pcm(vortex_t * vortex, int idx, int nr);
293 static int snd_vortex_mixer(vortex_t * vortex);
294 static int snd_vortex_midi(vortex_t * vortex);
295 #endif
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