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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 #include <linux/pci.h>
21 #include <linux/io.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/rawmidi.h>
25 #include <sound/mpu401.h>
26 #include <sound/hwdep.h>
27 #include <sound/ac97_codec.h>
28 #include <sound/tlv.h>
29 
30 #ifndef CHIP_AU8820
31 #include "au88x0_eq.h"
32 #include "au88x0_a3d.h"
33 #endif
34 #ifndef CHIP_AU8810
35 #include "au88x0_wt.h"
36 #endif
37 
38 #define	hwread(x,y) readl((x)+(y))
39 #define	hwwrite(x,y,z) writel((z),(x)+(y))
40 
41 /* Vortex MPU401 defines. */
42 #define	MIDI_CLOCK_DIV		0x61
43 /* Standart MPU401 defines. */
44 #define	MPU401_RESET		0xff
45 #define	MPU401_ENTER_UART	0x3f
46 #define	MPU401_ACK		0xfe
47 
48 // Get src register value to convert from x to y.
49 #define	SRC_RATIO(x,y)		((((x<<15)/y) + 1)/2)
50 
51 /* FIFO software state constants. */
52 #define FIFO_STOP 0
53 #define FIFO_START 1
54 #define FIFO_PAUSE 2
55 
56 /* IRQ flags */
57 #define IRQ_ERR_MASK	0x00ff
58 #define IRQ_FATAL	0x0001
59 #define IRQ_PARITY	0x0002
60 #define IRQ_REG		0x0004
61 #define IRQ_FIFO	0x0008
62 #define IRQ_DMA		0x0010
63 #define IRQ_PCMOUT	0x0020	/* PCM OUT page crossing */
64 #define IRQ_TIMER	0x1000
65 #define IRQ_MIDI	0x2000
66 #define IRQ_MODEM	0x4000
67 
68 /* ADB Resource */
69 #define VORTEX_RESOURCE_DMA	0x00000000
70 #define VORTEX_RESOURCE_SRC	0x00000001
71 #define VORTEX_RESOURCE_MIXIN	0x00000002
72 #define VORTEX_RESOURCE_MIXOUT	0x00000003
73 #define VORTEX_RESOURCE_A3D	0x00000004
74 #define VORTEX_RESOURCE_LAST	0x00000005
75 
76 /* codec io: VORTEX_CODEC_IO bits */
77 #define VORTEX_CODEC_ID_SHIFT	24
78 #define VORTEX_CODEC_WRITE	0x00800000
79 #define VORTEX_CODEC_ADDSHIFT 	16
80 #define VORTEX_CODEC_ADDMASK	0x7f0000
81 #define VORTEX_CODEC_DATSHIFT	0
82 #define VORTEX_CODEC_DATMASK	0xffff
83 
84 /* Check for SDAC bit in "Extended audio ID" AC97 register */
85 //#define VORTEX_IS_QUAD(x) (((x)->codec == NULL) ?  0 : ((x)->codec->ext_id&0x80))
86 #define VORTEX_IS_QUAD(x) ((x)->isquad)
87 /* Check if chip has bug. */
88 #define IS_BAD_CHIP(x) (\
89 	(x->rev == 0xfe && x->device == PCI_DEVICE_ID_AUREAL_VORTEX_2) || \
90 	(x->rev == 0xfe && x->device == PCI_DEVICE_ID_AUREAL_ADVANTAGE))
91 
92 
93 /* PCM devices */
94 #define VORTEX_PCM_ADB		0
95 #define VORTEX_PCM_SPDIF	1
96 #define VORTEX_PCM_A3D		2
97 #define VORTEX_PCM_WT		3
98 #define VORTEX_PCM_I2S		4
99 #define VORTEX_PCM_LAST		5
100 
101 #define MIX_CAPT(x) (vortex->mixcapt[x])
102 #define MIX_PLAYB(x) (vortex->mixplayb[x])
103 #define MIX_SPDIF(x) (vortex->mixspdif[x])
104 
105 #define NR_WTPB 0x20		/* WT channels per each bank. */
106 #define NR_PCM	0x10
107 
108 struct pcm_vol {
109 	struct snd_kcontrol *kctl;
110 	int active;
111 	int dma;
112 	int mixin[4];
113 	int vol[4];
114 };
115 
116 /* Structs */
117 typedef struct {
118 	//int this_08;          /* Still unknown */
119 	int fifo_enabled;	/* this_24 */
120 	int fifo_status;	/* this_1c */
121 	u32 dma_ctrl;		/* this_78 (ADB), this_7c (WT) */
122 	int dma_unknown;	/* this_74 (ADB), this_78 (WT). WDM: +8 */
123 	int cfg0;
124 	int cfg1;
125 
126 	int nr_ch;		/* Nr of PCM channels in use */
127 	int type;		/* Output type (ac97, a3d, spdif, i2s, dsp) */
128 	int dma;		/* Hardware DMA index. */
129 	int dir;		/* Stream Direction. */
130 	u32 resources[5];
131 
132 	/* Virtual page extender stuff */
133 	int nr_periods;
134 	int period_bytes;
135 	int period_real;
136 	int period_virt;
137 
138 	struct snd_pcm_substream *substream;
139 } stream_t;
140 
141 typedef struct snd_vortex vortex_t;
142 struct snd_vortex {
143 	/* ALSA structs. */
144 	struct snd_card *card;
145 	struct snd_pcm *pcm[VORTEX_PCM_LAST];
146 
147 	struct snd_rawmidi *rmidi;	/* Legacy Midi interface. */
148 	struct snd_ac97 *codec;
149 
150 	/* Stream structs. */
151 	stream_t dma_adb[NR_ADB];
152 	int spdif_sr;
153 #ifndef CHIP_AU8810
154 	stream_t dma_wt[NR_WT];
155 	wt_voice_t wt_voice[NR_WT];	/* WT register cache. */
156 	char mixwt[(NR_WT / NR_WTPB) * 6];	/* WT mixin objects */
157 #endif
158 
159 	/* Global resources */
160 	s8 mixcapt[2];
161 	s8 mixplayb[4];
162 #ifndef CHIP_AU8820
163 	s8 mixspdif[2];
164 	s8 mixa3d[2];	/* mixers which collect all a3d streams. */
165 	s8 mixxtlk[2];	/* crosstalk canceler mixer inputs. */
166 #endif
167 	u32 fixed_res[5];
168 
169 #ifndef CHIP_AU8820
170 	/* Hardware equalizer structs */
171 	eqlzr_t eq;
172 	/* A3D structs */
173 	a3dsrc_t a3d[NR_A3D];
174 	/* Xtalk canceler */
175 	int xt_mode;		/* 1: speakers, 0:headphones. */
176 #endif
177 	struct pcm_vol pcm_vol[NR_PCM];
178 
179 	int isquad;		/* cache of extended ID codec flag. */
180 
181 	/* Gameport stuff. */
182 	struct gameport *gameport;
183 
184 	/* PCI hardware resources */
185 	unsigned long io;
186 	void __iomem *mmio;
187 	unsigned int irq;
188 	spinlock_t lock;
189 
190 	/* PCI device */
191 	struct pci_dev *pci_dev;
192 	u16 vendor;
193 	u16 device;
194 	u8 rev;
195 };
196 
197 /* Functions. */
198 
199 /* SRC */
200 static void vortex_adb_setsrc(vortex_t * vortex, int adbdma,
201 			      unsigned int cvrt, int dir);
202 
203 /* DMA Engines. */
204 static void vortex_adbdma_setbuffers(vortex_t * vortex, int adbdma,
205 				     int size, int count);
206 static void vortex_adbdma_setmode(vortex_t * vortex, int adbdma, int ie,
207 				  int dir, int fmt, int d,
208 				  u32 offset);
209 static void vortex_adbdma_setstartbuffer(vortex_t * vortex, int adbdma, int sb);
210 #ifndef CHIP_AU8810
211 static void vortex_wtdma_setbuffers(vortex_t * vortex, int wtdma,
212 				    int size, int count);
213 static void vortex_wtdma_setmode(vortex_t * vortex, int wtdma, int ie, int fmt, int d,	/*int e, */
214 				 u32 offset);
215 static void vortex_wtdma_setstartbuffer(vortex_t * vortex, int wtdma, int sb);
216 #endif
217 
218 static void vortex_adbdma_startfifo(vortex_t * vortex, int adbdma);
219 //static void vortex_adbdma_stopfifo(vortex_t *vortex, int adbdma);
220 static void vortex_adbdma_pausefifo(vortex_t * vortex, int adbdma);
221 static void vortex_adbdma_resumefifo(vortex_t * vortex, int adbdma);
222 static inline int vortex_adbdma_getlinearpos(vortex_t * vortex, int adbdma);
223 static void vortex_adbdma_resetup(vortex_t *vortex, int adbdma);
224 
225 #ifndef CHIP_AU8810
226 static void vortex_wtdma_startfifo(vortex_t * vortex, int wtdma);
227 static void vortex_wtdma_stopfifo(vortex_t * vortex, int wtdma);
228 static void vortex_wtdma_pausefifo(vortex_t * vortex, int wtdma);
229 static void vortex_wtdma_resumefifo(vortex_t * vortex, int wtdma);
230 static inline int vortex_wtdma_getlinearpos(vortex_t * vortex, int wtdma);
231 #endif
232 
233 /* global stuff. */
234 static void vortex_codec_init(vortex_t * vortex);
235 static void vortex_codec_write(struct snd_ac97 * codec, unsigned short addr,
236 			       unsigned short data);
237 static unsigned short vortex_codec_read(struct snd_ac97 * codec, unsigned short addr);
238 static void vortex_spdif_init(vortex_t * vortex, int spdif_sr, int spdif_mode);
239 
240 static int vortex_core_init(vortex_t * card);
241 static int vortex_core_shutdown(vortex_t * card);
242 static void vortex_enable_int(vortex_t * card);
243 static irqreturn_t vortex_interrupt(int irq, void *dev_id);
244 static int vortex_alsafmt_aspfmt(int alsafmt, vortex_t *v);
245 
246 /* Connection  stuff. */
247 static void vortex_connect_default(vortex_t * vortex, int en);
248 static int vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch,
249 				 int dir, int type, int subdev);
250 static char vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out,
251 				  int restype);
252 #ifndef CHIP_AU8810
253 static int vortex_wt_allocroute(vortex_t * vortex, int dma, int nr_ch);
254 static void vortex_wt_connect(vortex_t * vortex, int en);
255 static void vortex_wt_init(vortex_t * vortex);
256 #endif
257 
258 static void vortex_route(vortex_t * vortex, int en, unsigned char channel,
259 			 unsigned char source, unsigned char dest);
260 #if 0
261 static void vortex_routes(vortex_t * vortex, int en, unsigned char channel,
262 			  unsigned char source, unsigned char dest0,
263 			  unsigned char dest1);
264 #endif
265 static void vortex_connection_mixin_mix(vortex_t * vortex, int en,
266 					unsigned char mixin,
267 					unsigned char mix, int a);
268 static void vortex_mix_setinputvolumebyte(vortex_t * vortex,
269 					  unsigned char mix, int mixin,
270 					  unsigned char vol);
271 static void vortex_mix_setvolumebyte(vortex_t * vortex, unsigned char mix,
272 				     unsigned char vol);
273 
274 /* A3D functions. */
275 #ifndef CHIP_AU8820
276 static void vortex_Vort3D_enable(vortex_t * v);
277 static void vortex_Vort3D_disable(vortex_t * v);
278 static void vortex_Vort3D_connect(vortex_t * vortex, int en);
279 static void vortex_Vort3D_InitializeSource(a3dsrc_t *a, int en, vortex_t *v);
280 #endif
281 
282 /* Driver stuff. */
283 static int vortex_gameport_register(vortex_t * card);
284 static void vortex_gameport_unregister(vortex_t * card);
285 #ifndef CHIP_AU8820
286 static int vortex_eq_init(vortex_t * vortex);
287 static int vortex_eq_free(vortex_t * vortex);
288 #endif
289 /* ALSA stuff. */
290 static int snd_vortex_new_pcm(vortex_t * vortex, int idx, int nr);
291 static int snd_vortex_mixer(vortex_t * vortex);
292 static int snd_vortex_midi(vortex_t * vortex);
293 #endif
294