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  • only in /asuswrt-rt-n18u-9.0.0.4.380.2695/release/src-rt-6.x.4708/linux/linux-2.6.36/sound/pci/au88x0/
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
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 eahc bank. */
108
109/* Structs */
110typedef struct {
111	//int this_08;          /* Still unknown */
112	int fifo_enabled;	/* this_24 */
113	int fifo_status;	/* this_1c */
114	u32 dma_ctrl;		/* this_78 (ADB), this_7c (WT) */
115	int dma_unknown;	/* this_74 (ADB), this_78 (WT). WDM: +8 */
116	int cfg0;
117	int cfg1;
118
119	int nr_ch;		/* Nr of PCM channels in use */
120	int type;		/* Output type (ac97, a3d, spdif, i2s, dsp) */
121	int dma;		/* Hardware DMA index. */
122	int dir;		/* Stream Direction. */
123	u32 resources[5];
124
125	/* Virtual page extender stuff */
126	int nr_periods;
127	int period_bytes;
128	int period_real;
129	int period_virt;
130
131	struct snd_pcm_substream *substream;
132} stream_t;
133
134typedef struct snd_vortex vortex_t;
135struct snd_vortex {
136	/* ALSA structs. */
137	struct snd_card *card;
138	struct snd_pcm *pcm[VORTEX_PCM_LAST];
139
140	struct snd_rawmidi *rmidi;	/* Legacy Midi interface. */
141	struct snd_ac97 *codec;
142
143	/* Stream structs. */
144	stream_t dma_adb[NR_ADB];
145	int spdif_sr;
146#ifndef CHIP_AU8810
147	stream_t dma_wt[NR_WT];
148	wt_voice_t wt_voice[NR_WT];	/* WT register cache. */
149	char mixwt[(NR_WT / NR_WTPB) * 6];	/* WT mixin objects */
150#endif
151
152	/* Global resources */
153	s8 mixcapt[2];
154	s8 mixplayb[4];
155#ifndef CHIP_AU8820
156	s8 mixspdif[2];
157	s8 mixa3d[2];	/* mixers which collect all a3d streams. */
158	s8 mixxtlk[2];	/* crosstalk canceler mixer inputs. */
159#endif
160	u32 fixed_res[5];
161
162#ifndef CHIP_AU8820
163	/* Hardware equalizer structs */
164	eqlzr_t eq;
165	/* A3D structs */
166	a3dsrc_t a3d[NR_A3D];
167	/* Xtalk canceler */
168	int xt_mode;		/* 1: speakers, 0:headphones. */
169#endif
170
171	int isquad;		/* cache of extended ID codec flag. */
172
173	/* Gameport stuff. */
174	struct gameport *gameport;
175
176	/* PCI hardware resources */
177	unsigned long io;
178	void __iomem *mmio;
179	unsigned int irq;
180	spinlock_t lock;
181
182	/* PCI device */
183	struct pci_dev *pci_dev;
184	u16 vendor;
185	u16 device;
186	u8 rev;
187};
188
189/* Functions. */
190
191/* SRC */
192static void vortex_adb_setsrc(vortex_t * vortex, int adbdma,
193			      unsigned int cvrt, int dir);
194
195/* DMA Engines. */
196static void vortex_adbdma_setbuffers(vortex_t * vortex, int adbdma,
197				     int size, int count);
198static void vortex_adbdma_setmode(vortex_t * vortex, int adbdma, int ie,
199				  int dir, int fmt, int d,
200				  u32 offset);
201static void vortex_adbdma_setstartbuffer(vortex_t * vortex, int adbdma, int sb);
202#ifndef CHIP_AU8810
203static void vortex_wtdma_setbuffers(vortex_t * vortex, int wtdma,
204				    int size, int count);
205static void vortex_wtdma_setmode(vortex_t * vortex, int wtdma, int ie, int fmt, int d,	/*int e, */
206				 u32 offset);
207static void vortex_wtdma_setstartbuffer(vortex_t * vortex, int wtdma, int sb);
208#endif
209
210static void vortex_adbdma_startfifo(vortex_t * vortex, int adbdma);
211//static void vortex_adbdma_stopfifo(vortex_t *vortex, int adbdma);
212static void vortex_adbdma_pausefifo(vortex_t * vortex, int adbdma);
213static void vortex_adbdma_resumefifo(vortex_t * vortex, int adbdma);
214static int inline vortex_adbdma_getlinearpos(vortex_t * vortex, int adbdma);
215static void vortex_adbdma_resetup(vortex_t *vortex, int adbdma);
216
217#ifndef CHIP_AU8810
218static void vortex_wtdma_startfifo(vortex_t * vortex, int wtdma);
219static void vortex_wtdma_stopfifo(vortex_t * vortex, int wtdma);
220static void vortex_wtdma_pausefifo(vortex_t * vortex, int wtdma);
221static void vortex_wtdma_resumefifo(vortex_t * vortex, int wtdma);
222static int inline vortex_wtdma_getlinearpos(vortex_t * vortex, int wtdma);
223#endif
224
225/* global stuff. */
226static void vortex_codec_init(vortex_t * vortex);
227static void vortex_codec_write(struct snd_ac97 * codec, unsigned short addr,
228			       unsigned short data);
229static unsigned short vortex_codec_read(struct snd_ac97 * codec, unsigned short addr);
230static void vortex_spdif_init(vortex_t * vortex, int spdif_sr, int spdif_mode);
231
232static int vortex_core_init(vortex_t * card);
233static int vortex_core_shutdown(vortex_t * card);
234static void vortex_enable_int(vortex_t * card);
235static irqreturn_t vortex_interrupt(int irq, void *dev_id);
236static int vortex_alsafmt_aspfmt(int alsafmt);
237
238/* Connection  stuff. */
239static void vortex_connect_default(vortex_t * vortex, int en);
240static int vortex_adb_allocroute(vortex_t * vortex, int dma, int nr_ch,
241				 int dir, int type);
242static char vortex_adb_checkinout(vortex_t * vortex, int resmap[], int out,
243				  int restype);
244#ifndef CHIP_AU8810
245static int vortex_wt_allocroute(vortex_t * vortex, int dma, int nr_ch);
246static void vortex_wt_connect(vortex_t * vortex, int en);
247static void vortex_wt_init(vortex_t * vortex);
248#endif
249
250static void vortex_route(vortex_t * vortex, int en, unsigned char channel,
251			 unsigned char source, unsigned char dest);
252static void vortex_connection_mixin_mix(vortex_t * vortex, int en,
253					unsigned char mixin,
254					unsigned char mix, int a);
255static void vortex_mix_setinputvolumebyte(vortex_t * vortex,
256					  unsigned char mix, int mixin,
257					  unsigned char vol);
258static void vortex_mix_setvolumebyte(vortex_t * vortex, unsigned char mix,
259				     unsigned char vol);
260
261/* A3D functions. */
262#ifndef CHIP_AU8820
263static void vortex_Vort3D_enable(vortex_t * v);
264static void vortex_Vort3D_disable(vortex_t * v);
265static void vortex_Vort3D_connect(vortex_t * vortex, int en);
266static void vortex_Vort3D_InitializeSource(a3dsrc_t * a, int en);
267#endif
268
269/* Driver stuff. */
270static int vortex_gameport_register(vortex_t * card);
271static void vortex_gameport_unregister(vortex_t * card);
272#ifndef CHIP_AU8820
273static int vortex_eq_init(vortex_t * vortex);
274static int vortex_eq_free(vortex_t * vortex);
275#endif
276/* ALSA stuff. */
277static int snd_vortex_new_pcm(vortex_t * vortex, int idx, int nr);
278static int snd_vortex_mixer(vortex_t * vortex);
279static int snd_vortex_midi(vortex_t * vortex);
280#endif
281