1/*
2 *   Driver for the Conexant Riptide Soundchip
3 *
4 *	Copyright (c) 2004 Peter Gruber <nokos@gmx.net>
5 *
6 *   This program is free software; you can redistribute it and/or modify
7 *   it under the terms of the GNU General Public License as published by
8 *   the Free Software Foundation; either version 2 of the License, or
9 *   (at your option) any later version.
10 *
11 *   This program is distributed in the hope that it will be useful,
12 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 *   GNU General Public License for more details.
15 *
16 *   You should have received a copy of the GNU General Public License
17 *   along with this program; if not, write to the Free Software
18 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19 *
20 */
21/*
22  History:
23   - 02/15/2004 first release
24
25  This Driver is based on the OSS Driver version from Linuxant (riptide-0.6lnxtbeta03111100)
26  credits from the original files:
27
28  MODULE NAME:        cnxt_rt.h
29  AUTHOR:             K. Lazarev  (Transcribed by KNL)
30  HISTORY:         Major Revision               Date        By
31            -----------------------------     --------     -----
32            Created                           02/1/2000     KNL
33
34  MODULE NAME:     int_mdl.c
35  AUTHOR:          Konstantin Lazarev    (Transcribed by KNL)
36  HISTORY:         Major Revision               Date        By
37            -----------------------------     --------     -----
38            Created                           10/01/99      KNL
39
40  MODULE NAME:        riptide.h
41  AUTHOR:             O. Druzhinin  (Transcribed by OLD)
42  HISTORY:         Major Revision               Date        By
43            -----------------------------     --------     -----
44            Created                           10/16/97      OLD
45
46  MODULE NAME:        Rp_Cmdif.cpp
47  AUTHOR:             O. Druzhinin  (Transcribed by OLD)
48                      K. Lazarev    (Transcribed by KNL)
49  HISTORY:         Major Revision               Date        By
50            -----------------------------     --------     -----
51            Adopted from NT4 driver            6/22/99      OLD
52            Ported to Linux                    9/01/99      KNL
53
54  MODULE NAME:        rt_hw.c
55  AUTHOR:             O. Druzhinin  (Transcribed by OLD)
56                      C. Lazarev    (Transcribed by CNL)
57  HISTORY:         Major Revision               Date        By
58            -----------------------------     --------     -----
59            Created                           11/18/97      OLD
60            Hardware functions for RipTide    11/24/97      CNL
61            (ES1) are coded
62            Hardware functions for RipTide    12/24/97      CNL
63            (A0) are coded
64            Hardware functions for RipTide    03/20/98      CNL
65            (A1) are coded
66            Boot loader is included           05/07/98      CNL
67            Redesigned for WDM                07/27/98      CNL
68            Redesigned for Linux              09/01/99      CNL
69
70  MODULE NAME:        rt_hw.h
71  AUTHOR:             C. Lazarev    (Transcribed by CNL)
72  HISTORY:         Major Revision               Date        By
73            -----------------------------     --------     -----
74            Created                           11/18/97      CNL
75
76  MODULE NAME:     rt_mdl.c
77  AUTHOR:          Konstantin Lazarev    (Transcribed by KNL)
78  HISTORY:         Major Revision               Date        By
79            -----------------------------     --------     -----
80            Created                           10/01/99      KNL
81
82  MODULE NAME:        mixer.h
83  AUTHOR:             K. Kenney
84  HISTORY:         Major Revision                   Date          By
85            -----------------------------          --------     -----
86            Created from MS W95 Sample             11/28/95      KRS
87            RipTide                                10/15/97      KRS
88            Adopted for Windows NT driver          01/20/98      CNL
89*/
90
91#include <linux/delay.h>
92#include <linux/init.h>
93#include <linux/interrupt.h>
94#include <linux/pci.h>
95#include <linux/slab.h>
96#include <linux/wait.h>
97#include <linux/gameport.h>
98#include <linux/device.h>
99#include <linux/firmware.h>
100#include <linux/kernel.h>
101#include <linux/module.h>
102#include <linux/io.h>
103#include <sound/core.h>
104#include <sound/info.h>
105#include <sound/control.h>
106#include <sound/pcm.h>
107#include <sound/pcm_params.h>
108#include <sound/ac97_codec.h>
109#include <sound/mpu401.h>
110#include <sound/opl3.h>
111#include <sound/initval.h>
112
113#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
114#define SUPPORT_JOYSTICK 1
115#endif
116
117MODULE_AUTHOR("Peter Gruber <nokos@gmx.net>");
118MODULE_DESCRIPTION("riptide");
119MODULE_LICENSE("GPL");
120MODULE_SUPPORTED_DEVICE("{{Conexant,Riptide}}");
121MODULE_FIRMWARE("riptide.hex");
122
123static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
124static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
125static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
126
127#ifdef SUPPORT_JOYSTICK
128static int joystick_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x200 };
129#endif
130static int mpu_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x330 };
131static int opl3_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x388 };
132
133module_param_array(index, int, NULL, 0444);
134MODULE_PARM_DESC(index, "Index value for Riptide soundcard.");
135module_param_array(id, charp, NULL, 0444);
136MODULE_PARM_DESC(id, "ID string for Riptide soundcard.");
137module_param_array(enable, bool, NULL, 0444);
138MODULE_PARM_DESC(enable, "Enable Riptide soundcard.");
139#ifdef SUPPORT_JOYSTICK
140module_param_array(joystick_port, int, NULL, 0444);
141MODULE_PARM_DESC(joystick_port, "Joystick port # for Riptide soundcard.");
142#endif
143module_param_array(mpu_port, int, NULL, 0444);
144MODULE_PARM_DESC(mpu_port, "MPU401 port # for Riptide driver.");
145module_param_array(opl3_port, int, NULL, 0444);
146MODULE_PARM_DESC(opl3_port, "OPL3 port # for Riptide driver.");
147
148/*
149 */
150
151#define MPU401_HW_RIPTIDE MPU401_HW_MPU401
152#define OPL3_HW_RIPTIDE   OPL3_HW_OPL3
153
154#define PCI_EXT_CapId       0x40
155#define PCI_EXT_NextCapPrt  0x41
156#define PCI_EXT_PWMC        0x42
157#define PCI_EXT_PWSCR       0x44
158#define PCI_EXT_Data00      0x46
159#define PCI_EXT_PMSCR_BSE   0x47
160#define PCI_EXT_SB_Base     0x48
161#define PCI_EXT_FM_Base     0x4a
162#define PCI_EXT_MPU_Base    0x4C
163#define PCI_EXT_Game_Base   0x4E
164#define PCI_EXT_Legacy_Mask 0x50
165#define PCI_EXT_AsicRev     0x52
166#define PCI_EXT_Reserved3   0x53
167
168#define LEGACY_ENABLE_ALL      0x8000	/* legacy device options */
169#define LEGACY_ENABLE_SB       0x4000
170#define LEGACY_ENABLE_FM       0x2000
171#define LEGACY_ENABLE_MPU_INT  0x1000
172#define LEGACY_ENABLE_MPU      0x0800
173#define LEGACY_ENABLE_GAMEPORT 0x0400
174
175#define MAX_WRITE_RETRY  10	/* cmd interface limits */
176#define MAX_ERROR_COUNT  10
177#define CMDIF_TIMEOUT    50000
178#define RESET_TRIES      5
179
180#define READ_PORT_ULONG(p)     inl((unsigned long)&(p))
181#define WRITE_PORT_ULONG(p,x)  outl(x,(unsigned long)&(p))
182
183#define READ_AUDIO_CONTROL(p)     READ_PORT_ULONG(p->audio_control)
184#define WRITE_AUDIO_CONTROL(p,x)  WRITE_PORT_ULONG(p->audio_control,x)
185#define UMASK_AUDIO_CONTROL(p,x)  WRITE_PORT_ULONG(p->audio_control,READ_PORT_ULONG(p->audio_control)|x)
186#define MASK_AUDIO_CONTROL(p,x)   WRITE_PORT_ULONG(p->audio_control,READ_PORT_ULONG(p->audio_control)&x)
187#define READ_AUDIO_STATUS(p)      READ_PORT_ULONG(p->audio_status)
188
189#define SET_GRESET(p)     UMASK_AUDIO_CONTROL(p,0x0001)	/* global reset switch */
190#define UNSET_GRESET(p)   MASK_AUDIO_CONTROL(p,~0x0001)
191#define SET_AIE(p)        UMASK_AUDIO_CONTROL(p,0x0004)	/* interrupt enable */
192#define UNSET_AIE(p)      MASK_AUDIO_CONTROL(p,~0x0004)
193#define SET_AIACK(p)      UMASK_AUDIO_CONTROL(p,0x0008)	/* interrupt acknowledge */
194#define UNSET_AIACKT(p)   MASKAUDIO_CONTROL(p,~0x0008)
195#define SET_ECMDAE(p)     UMASK_AUDIO_CONTROL(p,0x0010)
196#define UNSET_ECMDAE(p)   MASK_AUDIO_CONTROL(p,~0x0010)
197#define SET_ECMDBE(p)     UMASK_AUDIO_CONTROL(p,0x0020)
198#define UNSET_ECMDBE(p)   MASK_AUDIO_CONTROL(p,~0x0020)
199#define SET_EDATAF(p)     UMASK_AUDIO_CONTROL(p,0x0040)
200#define UNSET_EDATAF(p)   MASK_AUDIO_CONTROL(p,~0x0040)
201#define SET_EDATBF(p)     UMASK_AUDIO_CONTROL(p,0x0080)
202#define UNSET_EDATBF(p)   MASK_AUDIO_CONTROL(p,~0x0080)
203#define SET_ESBIRQON(p)   UMASK_AUDIO_CONTROL(p,0x0100)
204#define UNSET_ESBIRQON(p) MASK_AUDIO_CONTROL(p,~0x0100)
205#define SET_EMPUIRQ(p)    UMASK_AUDIO_CONTROL(p,0x0200)
206#define UNSET_EMPUIRQ(p)  MASK_AUDIO_CONTROL(p,~0x0200)
207#define IS_CMDE(a)        (READ_PORT_ULONG(a->stat)&0x1)	/* cmd empty */
208#define IS_DATF(a)        (READ_PORT_ULONG(a->stat)&0x2)	/* data filled */
209#define IS_READY(p)       (READ_AUDIO_STATUS(p)&0x0001)
210#define IS_DLREADY(p)     (READ_AUDIO_STATUS(p)&0x0002)
211#define IS_DLERR(p)       (READ_AUDIO_STATUS(p)&0x0004)
212#define IS_GERR(p)        (READ_AUDIO_STATUS(p)&0x0008)	/* error ! */
213#define IS_CMDAEIRQ(p)    (READ_AUDIO_STATUS(p)&0x0010)
214#define IS_CMDBEIRQ(p)    (READ_AUDIO_STATUS(p)&0x0020)
215#define IS_DATAFIRQ(p)    (READ_AUDIO_STATUS(p)&0x0040)
216#define IS_DATBFIRQ(p)    (READ_AUDIO_STATUS(p)&0x0080)
217#define IS_EOBIRQ(p)      (READ_AUDIO_STATUS(p)&0x0100)	/* interrupt status */
218#define IS_EOSIRQ(p)      (READ_AUDIO_STATUS(p)&0x0200)
219#define IS_EOCIRQ(p)      (READ_AUDIO_STATUS(p)&0x0400)
220#define IS_UNSLIRQ(p)     (READ_AUDIO_STATUS(p)&0x0800)
221#define IS_SBIRQ(p)       (READ_AUDIO_STATUS(p)&0x1000)
222#define IS_MPUIRQ(p)      (READ_AUDIO_STATUS(p)&0x2000)
223
224#define RESP 0x00000001		/* command flags */
225#define PARM 0x00000002
226#define CMDA 0x00000004
227#define CMDB 0x00000008
228#define NILL 0x00000000
229
230#define LONG0(a)   ((u32)a)	/* shifts and masks */
231#define BYTE0(a)   (LONG0(a)&0xff)
232#define BYTE1(a)   (BYTE0(a)<<8)
233#define BYTE2(a)   (BYTE0(a)<<16)
234#define BYTE3(a)   (BYTE0(a)<<24)
235#define WORD0(a)   (LONG0(a)&0xffff)
236#define WORD1(a)   (WORD0(a)<<8)
237#define WORD2(a)   (WORD0(a)<<16)
238#define TRINIB0(a) (LONG0(a)&0xffffff)
239#define TRINIB1(a) (TRINIB0(a)<<8)
240
241#define RET(a)     ((union cmdret *)(a))
242
243#define SEND_GETV(p,b)             sendcmd(p,RESP,GETV,0,RET(b))	/* get version */
244#define SEND_GETC(p,b,c)           sendcmd(p,PARM|RESP,GETC,c,RET(b))
245#define SEND_GUNS(p,b)             sendcmd(p,RESP,GUNS,0,RET(b))
246#define SEND_SCID(p,b)             sendcmd(p,RESP,SCID,0,RET(b))
247#define SEND_RMEM(p,b,c,d)         sendcmd(p,PARM|RESP,RMEM|BYTE1(b),LONG0(c),RET(d))	/* memory access for firmware write */
248#define SEND_SMEM(p,b,c)           sendcmd(p,PARM,SMEM|BYTE1(b),LONG0(c),RET(0))	/* memory access for firmware write */
249#define SEND_WMEM(p,b,c)           sendcmd(p,PARM,WMEM|BYTE1(b),LONG0(c),RET(0))	/* memory access for firmware write */
250#define SEND_SDTM(p,b,c)           sendcmd(p,PARM|RESP,SDTM|TRINIB1(b),0,RET(c))	/* memory access for firmware write */
251#define SEND_GOTO(p,b)             sendcmd(p,PARM,GOTO,LONG0(b),RET(0))	/* memory access for firmware write */
252#define SEND_SETDPLL(p)	           sendcmd(p,0,ARM_SETDPLL,0,RET(0))
253#define SEND_SSTR(p,b,c)           sendcmd(p,PARM,SSTR|BYTE3(b),LONG0(c),RET(0))	/* start stream */
254#define SEND_PSTR(p,b)             sendcmd(p,PARM,PSTR,BYTE3(b),RET(0))	/* pause stream */
255#define SEND_KSTR(p,b)             sendcmd(p,PARM,KSTR,BYTE3(b),RET(0))	/* stop stream */
256#define SEND_KDMA(p)               sendcmd(p,0,KDMA,0,RET(0))	/* stop all dma */
257#define SEND_GPOS(p,b,c,d)         sendcmd(p,PARM|RESP,GPOS,BYTE3(c)|BYTE2(b),RET(d))	/* get position in dma */
258#define SEND_SETF(p,b,c,d,e,f,g)   sendcmd(p,PARM,SETF|WORD1(b)|BYTE3(c),d|BYTE1(e)|BYTE2(f)|BYTE3(g),RET(0))	/* set sample format at mixer */
259#define SEND_GSTS(p,b,c,d)         sendcmd(p,PARM|RESP,GSTS,BYTE3(c)|BYTE2(b),RET(d))
260#define SEND_NGPOS(p,b,c,d)        sendcmd(p,PARM|RESP,NGPOS,BYTE3(c)|BYTE2(b),RET(d))
261#define SEND_PSEL(p,b,c)           sendcmd(p,PARM,PSEL,BYTE2(b)|BYTE3(c),RET(0))	/* activate lbus path */
262#define SEND_PCLR(p,b,c)           sendcmd(p,PARM,PCLR,BYTE2(b)|BYTE3(c),RET(0))	/* deactivate lbus path */
263#define SEND_PLST(p,b)             sendcmd(p,PARM,PLST,BYTE3(b),RET(0))
264#define SEND_RSSV(p,b,c,d)         sendcmd(p,PARM|RESP,RSSV,BYTE2(b)|BYTE3(c),RET(d))
265#define SEND_LSEL(p,b,c,d,e,f,g,h) sendcmd(p,PARM,LSEL|BYTE1(b)|BYTE2(c)|BYTE3(d),BYTE0(e)|BYTE1(f)|BYTE2(g)|BYTE3(h),RET(0))	/* select paths for internal connections */
266#define SEND_SSRC(p,b,c,d,e)       sendcmd(p,PARM,SSRC|BYTE1(b)|WORD2(c),WORD0(d)|WORD2(e),RET(0))	/* configure source */
267#define SEND_SLST(p,b)             sendcmd(p,PARM,SLST,BYTE3(b),RET(0))
268#define SEND_RSRC(p,b,c)           sendcmd(p,RESP,RSRC|BYTE1(b),0,RET(c))	/* read source config */
269#define SEND_SSRB(p,b,c)           sendcmd(p,PARM,SSRB|BYTE1(b),WORD2(c),RET(0))
270#define SEND_SDGV(p,b,c,d,e)       sendcmd(p,PARM,SDGV|BYTE2(b)|BYTE3(c),WORD0(d)|WORD2(e),RET(0))	/* set digital mixer */
271#define SEND_RDGV(p,b,c,d)         sendcmd(p,PARM|RESP,RDGV|BYTE2(b)|BYTE3(c),0,RET(d))	/* read digital mixer */
272#define SEND_DLST(p,b)             sendcmd(p,PARM,DLST,BYTE3(b),RET(0))
273#define SEND_SACR(p,b,c)           sendcmd(p,PARM,SACR,WORD0(b)|WORD2(c),RET(0))	/* set AC97 register */
274#define SEND_RACR(p,b,c)           sendcmd(p,PARM|RESP,RACR,WORD2(b),RET(c))	/* get AC97 register */
275#define SEND_ALST(p,b)             sendcmd(p,PARM,ALST,BYTE3(b),RET(0))
276#define SEND_TXAC(p,b,c,d,e,f)     sendcmd(p,PARM,TXAC|BYTE1(b)|WORD2(c),WORD0(d)|BYTE2(e)|BYTE3(f),RET(0))
277#define SEND_RXAC(p,b,c,d)         sendcmd(p,PARM|RESP,RXAC,BYTE2(b)|BYTE3(c),RET(d))
278#define SEND_SI2S(p,b)             sendcmd(p,PARM,SI2S,WORD2(b),RET(0))
279
280#define EOB_STATUS         0x80000000	/* status flags : block boundary */
281#define EOS_STATUS         0x40000000	/*              : stoppped */
282#define EOC_STATUS         0x20000000	/*              : stream end */
283#define ERR_STATUS         0x10000000
284#define EMPTY_STATUS       0x08000000
285
286#define IEOB_ENABLE        0x1	/* enable interrupts for status notification above */
287#define IEOS_ENABLE        0x2
288#define IEOC_ENABLE        0x4
289#define RDONCE             0x8
290#define DESC_MAX_MASK      0xff
291
292#define ST_PLAY  0x1		/* stream states */
293#define ST_STOP  0x2
294#define ST_PAUSE 0x4
295
296#define I2S_INTDEC     3	/* config for I2S link */
297#define I2S_MERGER     0
298#define I2S_SPLITTER   0
299#define I2S_MIXER      7
300#define I2S_RATE       44100
301
302#define MODEM_INTDEC   4	/* config for modem link */
303#define MODEM_MERGER   3
304#define MODEM_SPLITTER 0
305#define MODEM_MIXER    11
306
307#define FM_INTDEC      3	/* config for FM/OPL3 link */
308#define FM_MERGER      0
309#define FM_SPLITTER    0
310#define FM_MIXER       9
311
312#define SPLIT_PATH  0x80	/* path splitting flag */
313
314enum FIRMWARE {
315	DATA_REC = 0, EXT_END_OF_FILE, EXT_SEG_ADDR_REC, EXT_GOTO_CMD_REC,
316	EXT_LIN_ADDR_REC,
317};
318
319enum CMDS {
320	GETV = 0x00, GETC, GUNS, SCID, RMEM =
321	    0x10, SMEM, WMEM, SDTM, GOTO, SSTR =
322	    0x20, PSTR, KSTR, KDMA, GPOS, SETF, GSTS, NGPOS, PSEL =
323	    0x30, PCLR, PLST, RSSV, LSEL, SSRC = 0x40, SLST, RSRC, SSRB, SDGV =
324	    0x50, RDGV, DLST, SACR = 0x60, RACR, ALST, TXAC, RXAC, SI2S =
325	    0x70, ARM_SETDPLL = 0x72,
326};
327
328enum E1SOURCE {
329	ARM2LBUS_FIFO0 = 0, ARM2LBUS_FIFO1, ARM2LBUS_FIFO2, ARM2LBUS_FIFO3,
330	ARM2LBUS_FIFO4, ARM2LBUS_FIFO5, ARM2LBUS_FIFO6, ARM2LBUS_FIFO7,
331	ARM2LBUS_FIFO8, ARM2LBUS_FIFO9, ARM2LBUS_FIFO10, ARM2LBUS_FIFO11,
332	ARM2LBUS_FIFO12, ARM2LBUS_FIFO13, ARM2LBUS_FIFO14, ARM2LBUS_FIFO15,
333	INTER0_OUT, INTER1_OUT, INTER2_OUT, INTER3_OUT, INTER4_OUT,
334	INTERM0_OUT, INTERM1_OUT, INTERM2_OUT, INTERM3_OUT, INTERM4_OUT,
335	INTERM5_OUT, INTERM6_OUT, DECIMM0_OUT, DECIMM1_OUT, DECIMM2_OUT,
336	DECIMM3_OUT, DECIM0_OUT, SR3_4_OUT, OPL3_SAMPLE, ASRC0, ASRC1,
337	ACLNK2PADC, ACLNK2MODEM0RX, ACLNK2MIC, ACLNK2MODEM1RX, ACLNK2HNDMIC,
338	DIGITAL_MIXER_OUT0, GAINFUNC0_OUT, GAINFUNC1_OUT, GAINFUNC2_OUT,
339	GAINFUNC3_OUT, GAINFUNC4_OUT, SOFTMODEMTX, SPLITTER0_OUTL,
340	SPLITTER0_OUTR, SPLITTER1_OUTL, SPLITTER1_OUTR, SPLITTER2_OUTL,
341	SPLITTER2_OUTR, SPLITTER3_OUTL, SPLITTER3_OUTR, MERGER0_OUT,
342	MERGER1_OUT, MERGER2_OUT, MERGER3_OUT, ARM2LBUS_FIFO_DIRECT, NO_OUT
343};
344
345enum E2SINK {
346	LBUS2ARM_FIFO0 = 0, LBUS2ARM_FIFO1, LBUS2ARM_FIFO2, LBUS2ARM_FIFO3,
347	LBUS2ARM_FIFO4, LBUS2ARM_FIFO5, LBUS2ARM_FIFO6, LBUS2ARM_FIFO7,
348	INTER0_IN, INTER1_IN, INTER2_IN, INTER3_IN, INTER4_IN, INTERM0_IN,
349	INTERM1_IN, INTERM2_IN, INTERM3_IN, INTERM4_IN, INTERM5_IN, INTERM6_IN,
350	DECIMM0_IN, DECIMM1_IN, DECIMM2_IN, DECIMM3_IN, DECIM0_IN, SR3_4_IN,
351	PDAC2ACLNK, MODEM0TX2ACLNK, MODEM1TX2ACLNK, HNDSPK2ACLNK,
352	DIGITAL_MIXER_IN0, DIGITAL_MIXER_IN1, DIGITAL_MIXER_IN2,
353	DIGITAL_MIXER_IN3, DIGITAL_MIXER_IN4, DIGITAL_MIXER_IN5,
354	DIGITAL_MIXER_IN6, DIGITAL_MIXER_IN7, DIGITAL_MIXER_IN8,
355	DIGITAL_MIXER_IN9, DIGITAL_MIXER_IN10, DIGITAL_MIXER_IN11,
356	GAINFUNC0_IN, GAINFUNC1_IN, GAINFUNC2_IN, GAINFUNC3_IN, GAINFUNC4_IN,
357	SOFTMODEMRX, SPLITTER0_IN, SPLITTER1_IN, SPLITTER2_IN, SPLITTER3_IN,
358	MERGER0_INL, MERGER0_INR, MERGER1_INL, MERGER1_INR, MERGER2_INL,
359	MERGER2_INR, MERGER3_INL, MERGER3_INR, E2SINK_MAX
360};
361
362enum LBUS_SINK {
363	LS_SRC_INTERPOLATOR = 0, LS_SRC_INTERPOLATORM, LS_SRC_DECIMATOR,
364	LS_SRC_DECIMATORM, LS_MIXER_IN, LS_MIXER_GAIN_FUNCTION,
365	LS_SRC_SPLITTER, LS_SRC_MERGER, LS_NONE1, LS_NONE2,
366};
367
368enum RT_CHANNEL_IDS {
369	M0TX = 0, M1TX, TAMTX, HSSPKR, PDAC, DSNDTX0, DSNDTX1, DSNDTX2,
370	DSNDTX3, DSNDTX4, DSNDTX5, DSNDTX6, DSNDTX7, WVSTRTX, COP3DTX, SPARE,
371	M0RX, HSMIC, M1RX, CLEANRX, MICADC, PADC, COPRX1, COPRX2,
372	CHANNEL_ID_COUNTER
373};
374
375enum { SB_CMD = 0, MODEM_CMD, I2S_CMD0, I2S_CMD1, FM_CMD, MAX_CMD };
376
377struct lbuspath {
378	unsigned char *noconv;
379	unsigned char *stereo;
380	unsigned char *mono;
381};
382
383struct cmdport {
384	u32 data1;		/* cmd,param */
385	u32 data2;		/* param */
386	u32 stat;		/* status */
387	u32 pad[5];
388};
389
390struct riptideport {
391	u32 audio_control;	/* status registers */
392	u32 audio_status;
393	u32 pad[2];
394	struct cmdport port[2];	/* command ports */
395};
396
397struct cmdif {
398	struct riptideport *hwport;
399	spinlock_t lock;
400	unsigned int cmdcnt;	/* cmd statistics */
401	unsigned int cmdtime;
402	unsigned int cmdtimemax;
403	unsigned int cmdtimemin;
404	unsigned int errcnt;
405	int is_reset;
406};
407
408struct riptide_firmware {
409	u16 ASIC;
410	u16 CODEC;
411	u16 AUXDSP;
412	u16 PROG;
413};
414
415union cmdret {
416	u8 retbytes[8];
417	u16 retwords[4];
418	u32 retlongs[2];
419};
420
421union firmware_version {
422	union cmdret ret;
423	struct riptide_firmware firmware;
424};
425
426#define get_pcmhwdev(substream) (struct pcmhw *)(substream->runtime->private_data)
427
428#define PLAYBACK_SUBSTREAMS 3
429struct snd_riptide {
430	struct snd_card *card;
431	struct pci_dev *pci;
432	const struct firmware *fw_entry;
433
434	struct cmdif *cif;
435
436	struct snd_pcm *pcm;
437	struct snd_pcm *pcm_i2s;
438	struct snd_rawmidi *rmidi;
439	struct snd_opl3 *opl3;
440	struct snd_ac97 *ac97;
441	struct snd_ac97_bus *ac97_bus;
442
443	struct snd_pcm_substream *playback_substream[PLAYBACK_SUBSTREAMS];
444	struct snd_pcm_substream *capture_substream;
445
446	int openstreams;
447
448	int irq;
449	unsigned long port;
450	unsigned short mpuaddr;
451	unsigned short opladdr;
452#ifdef SUPPORT_JOYSTICK
453	unsigned short gameaddr;
454#endif
455	struct resource *res_port;
456
457	unsigned short device_id;
458
459	union firmware_version firmware;
460
461	spinlock_t lock;
462	struct tasklet_struct riptide_tq;
463	struct snd_info_entry *proc_entry;
464
465	unsigned long received_irqs;
466	unsigned long handled_irqs;
467#ifdef CONFIG_PM_SLEEP
468	int in_suspend;
469#endif
470};
471
472struct sgd {			/* scatter gather desriptor */
473	u32 dwNextLink;
474	u32 dwSegPtrPhys;
475	u32 dwSegLen;
476	u32 dwStat_Ctl;
477};
478
479struct pcmhw {			/* pcm descriptor */
480	struct lbuspath paths;
481	unsigned char *lbuspath;
482	unsigned char source;
483	unsigned char intdec[2];
484	unsigned char mixer;
485	unsigned char id;
486	unsigned char state;
487	unsigned int rate;
488	unsigned int channels;
489	snd_pcm_format_t format;
490	struct snd_dma_buffer sgdlist;
491	struct sgd *sgdbuf;
492	unsigned int size;
493	unsigned int pages;
494	unsigned int oldpos;
495	unsigned int pointer;
496};
497
498#define CMDRET_ZERO (union cmdret){{(u32)0, (u32) 0}}
499
500static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
501		   union cmdret *ret);
502static int getsourcesink(struct cmdif *cif, unsigned char source,
503			 unsigned char sink, unsigned char *a,
504			 unsigned char *b);
505static int snd_riptide_initialize(struct snd_riptide *chip);
506static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip);
507
508/*
509 */
510
511static const struct pci_device_id snd_riptide_ids[] = {
512	{ PCI_DEVICE(0x127a, 0x4310) },
513	{ PCI_DEVICE(0x127a, 0x4320) },
514	{ PCI_DEVICE(0x127a, 0x4330) },
515	{ PCI_DEVICE(0x127a, 0x4340) },
516	{0,},
517};
518
519#ifdef SUPPORT_JOYSTICK
520static const struct pci_device_id snd_riptide_joystick_ids[] = {
521	{ PCI_DEVICE(0x127a, 0x4312) },
522	{ PCI_DEVICE(0x127a, 0x4322) },
523	{ PCI_DEVICE(0x127a, 0x4332) },
524	{ PCI_DEVICE(0x127a, 0x4342) },
525	{0,},
526};
527#endif
528
529MODULE_DEVICE_TABLE(pci, snd_riptide_ids);
530
531/*
532 */
533
534static unsigned char lbusin2out[E2SINK_MAX + 1][2] = {
535	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
536								     LS_NONE2},
537	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
538								     LS_NONE2},
539	{INTER0_OUT, LS_SRC_INTERPOLATOR}, {INTER1_OUT, LS_SRC_INTERPOLATOR},
540	{INTER2_OUT, LS_SRC_INTERPOLATOR}, {INTER3_OUT, LS_SRC_INTERPOLATOR},
541	{INTER4_OUT, LS_SRC_INTERPOLATOR}, {INTERM0_OUT, LS_SRC_INTERPOLATORM},
542	{INTERM1_OUT, LS_SRC_INTERPOLATORM}, {INTERM2_OUT,
543					      LS_SRC_INTERPOLATORM},
544	{INTERM3_OUT, LS_SRC_INTERPOLATORM}, {INTERM4_OUT,
545					      LS_SRC_INTERPOLATORM},
546	{INTERM5_OUT, LS_SRC_INTERPOLATORM}, {INTERM6_OUT,
547					      LS_SRC_INTERPOLATORM},
548	{DECIMM0_OUT, LS_SRC_DECIMATORM}, {DECIMM1_OUT, LS_SRC_DECIMATORM},
549	{DECIMM2_OUT, LS_SRC_DECIMATORM}, {DECIMM3_OUT, LS_SRC_DECIMATORM},
550	{DECIM0_OUT, LS_SRC_DECIMATOR}, {SR3_4_OUT, LS_NONE1}, {NO_OUT,
551								LS_NONE2},
552	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1},
553	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
554	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
555	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
556	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
557	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
558	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
559	{GAINFUNC0_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC1_OUT,
560						  LS_MIXER_GAIN_FUNCTION},
561	{GAINFUNC2_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC3_OUT,
562						  LS_MIXER_GAIN_FUNCTION},
563	{GAINFUNC4_OUT, LS_MIXER_GAIN_FUNCTION}, {SOFTMODEMTX, LS_NONE1},
564	{SPLITTER0_OUTL, LS_SRC_SPLITTER}, {SPLITTER1_OUTL, LS_SRC_SPLITTER},
565	{SPLITTER2_OUTL, LS_SRC_SPLITTER}, {SPLITTER3_OUTL, LS_SRC_SPLITTER},
566	{MERGER0_OUT, LS_SRC_MERGER}, {MERGER0_OUT, LS_SRC_MERGER},
567	{MERGER1_OUT, LS_SRC_MERGER},
568	{MERGER1_OUT, LS_SRC_MERGER}, {MERGER2_OUT, LS_SRC_MERGER},
569	{MERGER2_OUT, LS_SRC_MERGER},
570	{MERGER3_OUT, LS_SRC_MERGER}, {MERGER3_OUT, LS_SRC_MERGER}, {NO_OUT,
571								     LS_NONE2},
572};
573
574static unsigned char lbus_play_opl3[] = {
575	DIGITAL_MIXER_IN0 + FM_MIXER, 0xff
576};
577static unsigned char lbus_play_modem[] = {
578	DIGITAL_MIXER_IN0 + MODEM_MIXER, 0xff
579};
580static unsigned char lbus_play_i2s[] = {
581	INTER0_IN + I2S_INTDEC, DIGITAL_MIXER_IN0 + I2S_MIXER, 0xff
582};
583static unsigned char lbus_play_out[] = {
584	PDAC2ACLNK, 0xff
585};
586static unsigned char lbus_play_outhp[] = {
587	HNDSPK2ACLNK, 0xff
588};
589static unsigned char lbus_play_noconv1[] = {
590	DIGITAL_MIXER_IN0, 0xff
591};
592static unsigned char lbus_play_stereo1[] = {
593	INTER0_IN, DIGITAL_MIXER_IN0, 0xff
594};
595static unsigned char lbus_play_mono1[] = {
596	INTERM0_IN, DIGITAL_MIXER_IN0, 0xff
597};
598static unsigned char lbus_play_noconv2[] = {
599	DIGITAL_MIXER_IN1, 0xff
600};
601static unsigned char lbus_play_stereo2[] = {
602	INTER1_IN, DIGITAL_MIXER_IN1, 0xff
603};
604static unsigned char lbus_play_mono2[] = {
605	INTERM1_IN, DIGITAL_MIXER_IN1, 0xff
606};
607static unsigned char lbus_play_noconv3[] = {
608	DIGITAL_MIXER_IN2, 0xff
609};
610static unsigned char lbus_play_stereo3[] = {
611	INTER2_IN, DIGITAL_MIXER_IN2, 0xff
612};
613static unsigned char lbus_play_mono3[] = {
614	INTERM2_IN, DIGITAL_MIXER_IN2, 0xff
615};
616static unsigned char lbus_rec_noconv1[] = {
617	LBUS2ARM_FIFO5, 0xff
618};
619static unsigned char lbus_rec_stereo1[] = {
620	DECIM0_IN, LBUS2ARM_FIFO5, 0xff
621};
622static unsigned char lbus_rec_mono1[] = {
623	DECIMM3_IN, LBUS2ARM_FIFO5, 0xff
624};
625
626static unsigned char play_ids[] = { 4, 1, 2, };
627static unsigned char play_sources[] = {
628	ARM2LBUS_FIFO4, ARM2LBUS_FIFO1, ARM2LBUS_FIFO2,
629};
630static struct lbuspath lbus_play_paths[] = {
631	{
632	 .noconv = lbus_play_noconv1,
633	 .stereo = lbus_play_stereo1,
634	 .mono = lbus_play_mono1,
635	 },
636	{
637	 .noconv = lbus_play_noconv2,
638	 .stereo = lbus_play_stereo2,
639	 .mono = lbus_play_mono2,
640	 },
641	{
642	 .noconv = lbus_play_noconv3,
643	 .stereo = lbus_play_stereo3,
644	 .mono = lbus_play_mono3,
645	 },
646};
647static struct lbuspath lbus_rec_path = {
648	.noconv = lbus_rec_noconv1,
649	.stereo = lbus_rec_stereo1,
650	.mono = lbus_rec_mono1,
651};
652
653#define FIRMWARE_VERSIONS 1
654static union firmware_version firmware_versions[] = {
655	{
656		.firmware = {
657			.ASIC = 3,
658			.CODEC = 2,
659			.AUXDSP = 3,
660			.PROG = 773,
661		},
662	},
663};
664
665static u32 atoh(const unsigned char *in, unsigned int len)
666{
667	u32 sum = 0;
668	unsigned int mult = 1;
669	unsigned char c;
670
671	while (len) {
672		int value;
673
674		c = in[len - 1];
675		value = hex_to_bin(c);
676		if (value >= 0)
677			sum += mult * value;
678		mult *= 16;
679		--len;
680	}
681	return sum;
682}
683
684static int senddata(struct cmdif *cif, const unsigned char *in, u32 offset)
685{
686	u32 addr;
687	u32 data;
688	u32 i;
689	const unsigned char *p;
690
691	i = atoh(&in[1], 2);
692	addr = offset + atoh(&in[3], 4);
693	if (SEND_SMEM(cif, 0, addr) != 0)
694		return -EACCES;
695	p = in + 9;
696	while (i) {
697		data = atoh(p, 8);
698		if (SEND_WMEM(cif, 2,
699			      ((data & 0x0f0f0f0f) << 4) | ((data & 0xf0f0f0f0)
700							    >> 4)))
701			return -EACCES;
702		i -= 4;
703		p += 8;
704	}
705	return 0;
706}
707
708static int loadfirmware(struct cmdif *cif, const unsigned char *img,
709			unsigned int size)
710{
711	const unsigned char *in;
712	u32 laddr, saddr, t, val;
713	int err = 0;
714
715	laddr = saddr = 0;
716	while (size > 0 && err == 0) {
717		in = img;
718		if (in[0] == ':') {
719			t = atoh(&in[7], 2);
720			switch (t) {
721			case DATA_REC:
722				err = senddata(cif, in, laddr + saddr);
723				break;
724			case EXT_SEG_ADDR_REC:
725				saddr = atoh(&in[9], 4) << 4;
726				break;
727			case EXT_LIN_ADDR_REC:
728				laddr = atoh(&in[9], 4) << 16;
729				break;
730			case EXT_GOTO_CMD_REC:
731				val = atoh(&in[9], 8);
732				if (SEND_GOTO(cif, val) != 0)
733					err = -EACCES;
734				break;
735			case EXT_END_OF_FILE:
736				size = 0;
737				break;
738			default:
739				break;
740			}
741			while (size > 0) {
742				size--;
743				if (*img++ == '\n')
744					break;
745			}
746		}
747	}
748	snd_printdd("load firmware return %d\n", err);
749	return err;
750}
751
752static void
753alloclbuspath(struct cmdif *cif, unsigned char source,
754	      unsigned char *path, unsigned char *mixer, unsigned char *s)
755{
756	while (*path != 0xff) {
757		unsigned char sink, type;
758
759		sink = *path & (~SPLIT_PATH);
760		if (sink != E2SINK_MAX) {
761			snd_printdd("alloc path 0x%x->0x%x\n", source, sink);
762			SEND_PSEL(cif, source, sink);
763			source = lbusin2out[sink][0];
764			type = lbusin2out[sink][1];
765			if (type == LS_MIXER_IN) {
766				if (mixer)
767					*mixer = sink - DIGITAL_MIXER_IN0;
768			}
769			if (type == LS_SRC_DECIMATORM ||
770			    type == LS_SRC_DECIMATOR ||
771			    type == LS_SRC_INTERPOLATORM ||
772			    type == LS_SRC_INTERPOLATOR) {
773				if (s) {
774					if (s[0] != 0xff)
775						s[1] = sink;
776					else
777						s[0] = sink;
778				}
779			}
780		}
781		if (*path++ & SPLIT_PATH) {
782			unsigned char *npath = path;
783
784			while (*npath != 0xff)
785				npath++;
786			alloclbuspath(cif, source + 1, ++npath, mixer, s);
787		}
788	}
789}
790
791static void
792freelbuspath(struct cmdif *cif, unsigned char source, unsigned char *path)
793{
794	while (*path != 0xff) {
795		unsigned char sink;
796
797		sink = *path & (~SPLIT_PATH);
798		if (sink != E2SINK_MAX) {
799			snd_printdd("free path 0x%x->0x%x\n", source, sink);
800			SEND_PCLR(cif, source, sink);
801			source = lbusin2out[sink][0];
802		}
803		if (*path++ & SPLIT_PATH) {
804			unsigned char *npath = path;
805
806			while (*npath != 0xff)
807				npath++;
808			freelbuspath(cif, source + 1, ++npath);
809		}
810	}
811}
812
813static int writearm(struct cmdif *cif, u32 addr, u32 data, u32 mask)
814{
815	union cmdret rptr = CMDRET_ZERO;
816	unsigned int i = MAX_WRITE_RETRY;
817	int flag = 1;
818
819	SEND_RMEM(cif, 0x02, addr, &rptr);
820	rptr.retlongs[0] &= (~mask);
821
822	while (--i) {
823		SEND_SMEM(cif, 0x01, addr);
824		SEND_WMEM(cif, 0x02, (rptr.retlongs[0] | data));
825		SEND_RMEM(cif, 0x02, addr, &rptr);
826		if ((rptr.retlongs[0] & data) == data) {
827			flag = 0;
828			break;
829		} else
830			rptr.retlongs[0] &= ~mask;
831	}
832	snd_printdd("send arm 0x%x 0x%x 0x%x return %d\n", addr, data, mask,
833		    flag);
834	return flag;
835}
836
837static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
838		   union cmdret *ret)
839{
840	int i, j;
841	int err;
842	unsigned int time = 0;
843	unsigned long irqflags;
844	struct riptideport *hwport;
845	struct cmdport *cmdport = NULL;
846
847	if (snd_BUG_ON(!cif))
848		return -EINVAL;
849
850	hwport = cif->hwport;
851	if (cif->errcnt > MAX_ERROR_COUNT) {
852		if (cif->is_reset) {
853			snd_printk(KERN_ERR
854				   "Riptide: Too many failed cmds, reinitializing\n");
855			if (riptide_reset(cif, NULL) == 0) {
856				cif->errcnt = 0;
857				return -EIO;
858			}
859		}
860		snd_printk(KERN_ERR "Riptide: Initialization failed.\n");
861		return -EINVAL;
862	}
863	if (ret) {
864		ret->retlongs[0] = 0;
865		ret->retlongs[1] = 0;
866	}
867	i = 0;
868	spin_lock_irqsave(&cif->lock, irqflags);
869	while (i++ < CMDIF_TIMEOUT && !IS_READY(cif->hwport))
870		udelay(10);
871	if (i > CMDIF_TIMEOUT) {
872		err = -EBUSY;
873		goto errout;
874	}
875
876	err = 0;
877	for (j = 0, time = 0; time < CMDIF_TIMEOUT; j++, time += 2) {
878		cmdport = &(hwport->port[j % 2]);
879		if (IS_DATF(cmdport)) {	/* free pending data */
880			READ_PORT_ULONG(cmdport->data1);
881			READ_PORT_ULONG(cmdport->data2);
882		}
883		if (IS_CMDE(cmdport)) {
884			if (flags & PARM)	/* put data */
885				WRITE_PORT_ULONG(cmdport->data2, parm);
886			WRITE_PORT_ULONG(cmdport->data1, cmd);	/* write cmd */
887			if ((flags & RESP) && ret) {
888				while (!IS_DATF(cmdport) &&
889				       time < CMDIF_TIMEOUT) {
890					udelay(10);
891					time++;
892				}
893				if (time < CMDIF_TIMEOUT) {	/* read response */
894					ret->retlongs[0] =
895					    READ_PORT_ULONG(cmdport->data1);
896					ret->retlongs[1] =
897					    READ_PORT_ULONG(cmdport->data2);
898				} else {
899					err = -ENOSYS;
900					goto errout;
901				}
902			}
903			break;
904		}
905		udelay(20);
906	}
907	if (time == CMDIF_TIMEOUT) {
908		err = -ENODATA;
909		goto errout;
910	}
911	spin_unlock_irqrestore(&cif->lock, irqflags);
912
913	cif->cmdcnt++;		/* update command statistics */
914	cif->cmdtime += time;
915	if (time > cif->cmdtimemax)
916		cif->cmdtimemax = time;
917	if (time < cif->cmdtimemin)
918		cif->cmdtimemin = time;
919	if ((cif->cmdcnt) % 1000 == 0)
920		snd_printdd
921		    ("send cmd %d time: %d mintime: %d maxtime %d err: %d\n",
922		     cif->cmdcnt, cif->cmdtime, cif->cmdtimemin,
923		     cif->cmdtimemax, cif->errcnt);
924	return 0;
925
926      errout:
927	cif->errcnt++;
928	spin_unlock_irqrestore(&cif->lock, irqflags);
929	snd_printdd
930	    ("send cmd %d hw: 0x%x flag: 0x%x cmd: 0x%x parm: 0x%x ret: 0x%x 0x%x CMDE: %d DATF: %d failed %d\n",
931	     cif->cmdcnt, (int)((void *)&(cmdport->stat) - (void *)hwport),
932	     flags, cmd, parm, ret ? ret->retlongs[0] : 0,
933	     ret ? ret->retlongs[1] : 0, IS_CMDE(cmdport), IS_DATF(cmdport),
934	     err);
935	return err;
936}
937
938static int
939setmixer(struct cmdif *cif, short num, unsigned short rval, unsigned short lval)
940{
941	union cmdret rptr = CMDRET_ZERO;
942	int i = 0;
943
944	snd_printdd("sent mixer %d: 0x%x 0x%x\n", num, rval, lval);
945	do {
946		SEND_SDGV(cif, num, num, rval, lval);
947		SEND_RDGV(cif, num, num, &rptr);
948		if (rptr.retwords[0] == lval && rptr.retwords[1] == rval)
949			return 0;
950	} while (i++ < MAX_WRITE_RETRY);
951	snd_printdd("sent mixer failed\n");
952	return -EIO;
953}
954
955static int getpaths(struct cmdif *cif, unsigned char *o)
956{
957	unsigned char src[E2SINK_MAX];
958	unsigned char sink[E2SINK_MAX];
959	int i, j = 0;
960
961	for (i = 0; i < E2SINK_MAX; i++) {
962		getsourcesink(cif, i, i, &src[i], &sink[i]);
963		if (sink[i] < E2SINK_MAX) {
964			o[j++] = sink[i];
965			o[j++] = i;
966		}
967	}
968	return j;
969}
970
971static int
972getsourcesink(struct cmdif *cif, unsigned char source, unsigned char sink,
973	      unsigned char *a, unsigned char *b)
974{
975	union cmdret rptr = CMDRET_ZERO;
976
977	if (SEND_RSSV(cif, source, sink, &rptr) &&
978	    SEND_RSSV(cif, source, sink, &rptr))
979		return -EIO;
980	*a = rptr.retbytes[0];
981	*b = rptr.retbytes[1];
982	snd_printdd("getsourcesink 0x%x 0x%x\n", *a, *b);
983	return 0;
984}
985
986static int
987getsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int *rate)
988{
989	unsigned char *s;
990	unsigned int p[2] = { 0, 0 };
991	int i;
992	union cmdret rptr = CMDRET_ZERO;
993
994	s = intdec;
995	for (i = 0; i < 2; i++) {
996		if (*s != 0xff) {
997			if (SEND_RSRC(cif, *s, &rptr) &&
998			    SEND_RSRC(cif, *s, &rptr))
999				return -EIO;
1000			p[i] += rptr.retwords[1];
1001			p[i] *= rptr.retwords[2];
1002			p[i] += rptr.retwords[3];
1003			p[i] /= 65536;
1004		}
1005		s++;
1006	}
1007	if (p[0]) {
1008		if (p[1] != p[0])
1009			snd_printdd("rates differ %d %d\n", p[0], p[1]);
1010		*rate = (unsigned int)p[0];
1011	} else
1012		*rate = (unsigned int)p[1];
1013	snd_printdd("getsampleformat %d %d %d\n", intdec[0], intdec[1], *rate);
1014	return 0;
1015}
1016
1017static int
1018setsampleformat(struct cmdif *cif,
1019		unsigned char mixer, unsigned char id,
1020		unsigned char channels, unsigned char format)
1021{
1022	unsigned char w, ch, sig, order;
1023
1024	snd_printdd
1025	    ("setsampleformat mixer: %d id: %d channels: %d format: %d\n",
1026	     mixer, id, channels, format);
1027	ch = channels == 1;
1028	w = snd_pcm_format_width(format) == 8;
1029	sig = snd_pcm_format_unsigned(format) != 0;
1030	order = snd_pcm_format_big_endian(format) != 0;
1031
1032	if (SEND_SETF(cif, mixer, w, ch, order, sig, id) &&
1033	    SEND_SETF(cif, mixer, w, ch, order, sig, id)) {
1034		snd_printdd("setsampleformat failed\n");
1035		return -EIO;
1036	}
1037	return 0;
1038}
1039
1040static int
1041setsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int rate)
1042{
1043	u32 D, M, N;
1044	union cmdret rptr = CMDRET_ZERO;
1045	int i;
1046
1047	snd_printdd("setsamplerate intdec: %d,%d rate: %d\n", intdec[0],
1048		    intdec[1], rate);
1049	D = 48000;
1050	M = ((rate == 48000) ? 47999 : rate) * 65536;
1051	N = M % D;
1052	M /= D;
1053	for (i = 0; i < 2; i++) {
1054		if (*intdec != 0xff) {
1055			do {
1056				SEND_SSRC(cif, *intdec, D, M, N);
1057				SEND_RSRC(cif, *intdec, &rptr);
1058			} while (rptr.retwords[1] != D &&
1059				 rptr.retwords[2] != M &&
1060				 rptr.retwords[3] != N &&
1061				 i++ < MAX_WRITE_RETRY);
1062			if (i > MAX_WRITE_RETRY) {
1063				snd_printdd("sent samplerate %d: %d failed\n",
1064					    *intdec, rate);
1065				return -EIO;
1066			}
1067		}
1068		intdec++;
1069	}
1070	return 0;
1071}
1072
1073static int
1074getmixer(struct cmdif *cif, short num, unsigned short *rval,
1075	 unsigned short *lval)
1076{
1077	union cmdret rptr = CMDRET_ZERO;
1078
1079	if (SEND_RDGV(cif, num, num, &rptr) && SEND_RDGV(cif, num, num, &rptr))
1080		return -EIO;
1081	*rval = rptr.retwords[0];
1082	*lval = rptr.retwords[1];
1083	snd_printdd("got mixer %d: 0x%x 0x%x\n", num, *rval, *lval);
1084	return 0;
1085}
1086
1087static void riptide_handleirq(unsigned long dev_id)
1088{
1089	struct snd_riptide *chip = (void *)dev_id;
1090	struct cmdif *cif = chip->cif;
1091	struct snd_pcm_substream *substream[PLAYBACK_SUBSTREAMS + 1];
1092	struct snd_pcm_runtime *runtime;
1093	struct pcmhw *data = NULL;
1094	unsigned int pos, period_bytes;
1095	struct sgd *c;
1096	int i, j;
1097	unsigned int flag;
1098
1099	if (!cif)
1100		return;
1101
1102	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++)
1103		substream[i] = chip->playback_substream[i];
1104	substream[i] = chip->capture_substream;
1105	for (i = 0; i < PLAYBACK_SUBSTREAMS + 1; i++) {
1106		if (substream[i] &&
1107		    (runtime = substream[i]->runtime) &&
1108		    (data = runtime->private_data) && data->state != ST_STOP) {
1109			pos = 0;
1110			for (j = 0; j < data->pages; j++) {
1111				c = &data->sgdbuf[j];
1112				flag = le32_to_cpu(c->dwStat_Ctl);
1113				if (flag & EOB_STATUS)
1114					pos += le32_to_cpu(c->dwSegLen);
1115				if (flag & EOC_STATUS)
1116					pos += le32_to_cpu(c->dwSegLen);
1117				if ((flag & EOS_STATUS)
1118				    && (data->state == ST_PLAY)) {
1119					data->state = ST_STOP;
1120					snd_printk(KERN_ERR
1121						   "Riptide: DMA stopped unexpectedly\n");
1122				}
1123				c->dwStat_Ctl =
1124				    cpu_to_le32(flag &
1125						~(EOS_STATUS | EOB_STATUS |
1126						  EOC_STATUS));
1127			}
1128			data->pointer += pos;
1129			pos += data->oldpos;
1130			if (data->state != ST_STOP) {
1131				period_bytes =
1132				    frames_to_bytes(runtime,
1133						    runtime->period_size);
1134				snd_printdd
1135				    ("interrupt 0x%x after 0x%lx of 0x%lx frames in period\n",
1136				     READ_AUDIO_STATUS(cif->hwport),
1137				     bytes_to_frames(runtime, pos),
1138				     runtime->period_size);
1139				j = 0;
1140				if (pos >= period_bytes) {
1141					j++;
1142					while (pos >= period_bytes)
1143						pos -= period_bytes;
1144				}
1145				data->oldpos = pos;
1146				if (j > 0)
1147					snd_pcm_period_elapsed(substream[i]);
1148			}
1149		}
1150	}
1151}
1152
1153#ifdef CONFIG_PM_SLEEP
1154static int riptide_suspend(struct device *dev)
1155{
1156	struct snd_card *card = dev_get_drvdata(dev);
1157	struct snd_riptide *chip = card->private_data;
1158
1159	chip->in_suspend = 1;
1160	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1161	snd_pcm_suspend_all(chip->pcm);
1162	snd_ac97_suspend(chip->ac97);
1163	return 0;
1164}
1165
1166static int riptide_resume(struct device *dev)
1167{
1168	struct snd_card *card = dev_get_drvdata(dev);
1169	struct snd_riptide *chip = card->private_data;
1170
1171	snd_riptide_initialize(chip);
1172	snd_ac97_resume(chip->ac97);
1173	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1174	chip->in_suspend = 0;
1175	return 0;
1176}
1177
1178static SIMPLE_DEV_PM_OPS(riptide_pm, riptide_suspend, riptide_resume);
1179#define RIPTIDE_PM_OPS	&riptide_pm
1180#else
1181#define RIPTIDE_PM_OPS	NULL
1182#endif /* CONFIG_PM_SLEEP */
1183
1184static int try_to_load_firmware(struct cmdif *cif, struct snd_riptide *chip)
1185{
1186	union firmware_version firmware = { .ret = CMDRET_ZERO };
1187	int i, timeout, err;
1188
1189	for (i = 0; i < 2; i++) {
1190		WRITE_PORT_ULONG(cif->hwport->port[i].data1, 0);
1191		WRITE_PORT_ULONG(cif->hwport->port[i].data2, 0);
1192	}
1193	SET_GRESET(cif->hwport);
1194	udelay(100);
1195	UNSET_GRESET(cif->hwport);
1196	udelay(100);
1197
1198	for (timeout = 100000; --timeout; udelay(10)) {
1199		if (IS_READY(cif->hwport) && !IS_GERR(cif->hwport))
1200			break;
1201	}
1202	if (!timeout) {
1203		snd_printk(KERN_ERR
1204			   "Riptide: device not ready, audio status: 0x%x "
1205			   "ready: %d gerr: %d\n",
1206			   READ_AUDIO_STATUS(cif->hwport),
1207			   IS_READY(cif->hwport), IS_GERR(cif->hwport));
1208		return -EIO;
1209	} else {
1210		snd_printdd
1211			("Riptide: audio status: 0x%x ready: %d gerr: %d\n",
1212			 READ_AUDIO_STATUS(cif->hwport),
1213			 IS_READY(cif->hwport), IS_GERR(cif->hwport));
1214	}
1215
1216	SEND_GETV(cif, &firmware.ret);
1217	snd_printdd("Firmware version: ASIC: %d CODEC %d AUXDSP %d PROG %d\n",
1218		    firmware.firmware.ASIC, firmware.firmware.CODEC,
1219		    firmware.firmware.AUXDSP, firmware.firmware.PROG);
1220
1221	if (!chip)
1222		return 1;
1223
1224	for (i = 0; i < FIRMWARE_VERSIONS; i++) {
1225		if (!memcmp(&firmware_versions[i], &firmware, sizeof(firmware)))
1226			return 1; /* OK */
1227
1228	}
1229
1230	snd_printdd("Writing Firmware\n");
1231	if (!chip->fw_entry) {
1232		err = request_firmware(&chip->fw_entry, "riptide.hex",
1233				       &chip->pci->dev);
1234		if (err) {
1235			snd_printk(KERN_ERR
1236				   "Riptide: Firmware not available %d\n", err);
1237			return -EIO;
1238		}
1239	}
1240	err = loadfirmware(cif, chip->fw_entry->data, chip->fw_entry->size);
1241	if (err) {
1242		snd_printk(KERN_ERR
1243			   "Riptide: Could not load firmware %d\n", err);
1244		return err;
1245	}
1246
1247	chip->firmware = firmware;
1248
1249	return 1; /* OK */
1250}
1251
1252static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip)
1253{
1254	union cmdret rptr = CMDRET_ZERO;
1255	int err, tries;
1256
1257	if (!cif)
1258		return -EINVAL;
1259
1260	cif->cmdcnt = 0;
1261	cif->cmdtime = 0;
1262	cif->cmdtimemax = 0;
1263	cif->cmdtimemin = 0xffffffff;
1264	cif->errcnt = 0;
1265	cif->is_reset = 0;
1266
1267	tries = RESET_TRIES;
1268	do {
1269		err = try_to_load_firmware(cif, chip);
1270		if (err < 0)
1271			return err;
1272	} while (!err && --tries);
1273
1274	SEND_SACR(cif, 0, AC97_RESET);
1275	SEND_RACR(cif, AC97_RESET, &rptr);
1276	snd_printdd("AC97: 0x%x 0x%x\n", rptr.retlongs[0], rptr.retlongs[1]);
1277
1278	SEND_PLST(cif, 0);
1279	SEND_SLST(cif, 0);
1280	SEND_DLST(cif, 0);
1281	SEND_ALST(cif, 0);
1282	SEND_KDMA(cif);
1283
1284	writearm(cif, 0x301F8, 1, 1);
1285	writearm(cif, 0x301F4, 1, 1);
1286
1287	SEND_LSEL(cif, MODEM_CMD, 0, 0, MODEM_INTDEC, MODEM_MERGER,
1288		  MODEM_SPLITTER, MODEM_MIXER);
1289	setmixer(cif, MODEM_MIXER, 0x7fff, 0x7fff);
1290	alloclbuspath(cif, ARM2LBUS_FIFO13, lbus_play_modem, NULL, NULL);
1291
1292	SEND_LSEL(cif, FM_CMD, 0, 0, FM_INTDEC, FM_MERGER, FM_SPLITTER,
1293		  FM_MIXER);
1294	setmixer(cif, FM_MIXER, 0x7fff, 0x7fff);
1295	writearm(cif, 0x30648 + FM_MIXER * 4, 0x01, 0x00000005);
1296	writearm(cif, 0x301A8, 0x02, 0x00000002);
1297	writearm(cif, 0x30264, 0x08, 0xffffffff);
1298	alloclbuspath(cif, OPL3_SAMPLE, lbus_play_opl3, NULL, NULL);
1299
1300	SEND_SSRC(cif, I2S_INTDEC, 48000,
1301		  ((u32) I2S_RATE * 65536) / 48000,
1302		  ((u32) I2S_RATE * 65536) % 48000);
1303	SEND_LSEL(cif, I2S_CMD0, 0, 0, I2S_INTDEC, I2S_MERGER, I2S_SPLITTER,
1304		  I2S_MIXER);
1305	SEND_SI2S(cif, 1);
1306	alloclbuspath(cif, ARM2LBUS_FIFO0, lbus_play_i2s, NULL, NULL);
1307	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_out, NULL, NULL);
1308	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_outhp, NULL, NULL);
1309
1310	SET_AIACK(cif->hwport);
1311	SET_AIE(cif->hwport);
1312	SET_AIACK(cif->hwport);
1313	cif->is_reset = 1;
1314
1315	return 0;
1316}
1317
1318static struct snd_pcm_hardware snd_riptide_playback = {
1319	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1320		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1321		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1322	.formats =
1323	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1324	    | SNDRV_PCM_FMTBIT_U16_LE,
1325	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1326	.rate_min = 5500,
1327	.rate_max = 48000,
1328	.channels_min = 1,
1329	.channels_max = 2,
1330	.buffer_bytes_max = (64 * 1024),
1331	.period_bytes_min = PAGE_SIZE >> 1,
1332	.period_bytes_max = PAGE_SIZE << 8,
1333	.periods_min = 2,
1334	.periods_max = 64,
1335	.fifo_size = 0,
1336};
1337static struct snd_pcm_hardware snd_riptide_capture = {
1338	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1339		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1340		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1341	.formats =
1342	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1343	    | SNDRV_PCM_FMTBIT_U16_LE,
1344	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1345	.rate_min = 5500,
1346	.rate_max = 48000,
1347	.channels_min = 1,
1348	.channels_max = 2,
1349	.buffer_bytes_max = (64 * 1024),
1350	.period_bytes_min = PAGE_SIZE >> 1,
1351	.period_bytes_max = PAGE_SIZE << 3,
1352	.periods_min = 2,
1353	.periods_max = 64,
1354	.fifo_size = 0,
1355};
1356
1357static snd_pcm_uframes_t snd_riptide_pointer(struct snd_pcm_substream
1358					     *substream)
1359{
1360	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1361	struct snd_pcm_runtime *runtime = substream->runtime;
1362	struct pcmhw *data = get_pcmhwdev(substream);
1363	struct cmdif *cif = chip->cif;
1364	union cmdret rptr = CMDRET_ZERO;
1365	snd_pcm_uframes_t ret;
1366
1367	SEND_GPOS(cif, 0, data->id, &rptr);
1368	if (data->size && runtime->period_size) {
1369		snd_printdd
1370		    ("pointer stream %d position 0x%x(0x%x in buffer) bytes 0x%lx(0x%lx in period) frames\n",
1371		     data->id, rptr.retlongs[1], rptr.retlongs[1] % data->size,
1372		     bytes_to_frames(runtime, rptr.retlongs[1]),
1373		     bytes_to_frames(runtime,
1374				     rptr.retlongs[1]) % runtime->period_size);
1375		if (rptr.retlongs[1] > data->pointer)
1376			ret =
1377			    bytes_to_frames(runtime,
1378					    rptr.retlongs[1] % data->size);
1379		else
1380			ret =
1381			    bytes_to_frames(runtime,
1382					    data->pointer % data->size);
1383	} else {
1384		snd_printdd("stream not started or strange parms (%d %ld)\n",
1385			    data->size, runtime->period_size);
1386		ret = bytes_to_frames(runtime, 0);
1387	}
1388	return ret;
1389}
1390
1391static int snd_riptide_trigger(struct snd_pcm_substream *substream, int cmd)
1392{
1393	int i, j;
1394	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1395	struct pcmhw *data = get_pcmhwdev(substream);
1396	struct cmdif *cif = chip->cif;
1397	union cmdret rptr = CMDRET_ZERO;
1398
1399	spin_lock(&chip->lock);
1400	switch (cmd) {
1401	case SNDRV_PCM_TRIGGER_START:
1402	case SNDRV_PCM_TRIGGER_RESUME:
1403		if (!(data->state & ST_PLAY)) {
1404			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1405			SET_AIE(cif->hwport);
1406			data->state = ST_PLAY;
1407			if (data->mixer != 0xff)
1408				setmixer(cif, data->mixer, 0x7fff, 0x7fff);
1409			chip->openstreams++;
1410			data->oldpos = 0;
1411			data->pointer = 0;
1412		}
1413		break;
1414	case SNDRV_PCM_TRIGGER_STOP:
1415	case SNDRV_PCM_TRIGGER_SUSPEND:
1416		if (data->mixer != 0xff)
1417			setmixer(cif, data->mixer, 0, 0);
1418		setmixer(cif, data->mixer, 0, 0);
1419		SEND_KSTR(cif, data->id);
1420		data->state = ST_STOP;
1421		chip->openstreams--;
1422		j = 0;
1423		do {
1424			i = rptr.retlongs[1];
1425			SEND_GPOS(cif, 0, data->id, &rptr);
1426			udelay(1);
1427		} while (i != rptr.retlongs[1] && j++ < MAX_WRITE_RETRY);
1428		if (j > MAX_WRITE_RETRY)
1429			snd_printk(KERN_ERR "Riptide: Could not stop stream!");
1430		break;
1431	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1432		if (!(data->state & ST_PAUSE)) {
1433			SEND_PSTR(cif, data->id);
1434			data->state |= ST_PAUSE;
1435			chip->openstreams--;
1436		}
1437		break;
1438	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1439		if (data->state & ST_PAUSE) {
1440			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1441			data->state &= ~ST_PAUSE;
1442			chip->openstreams++;
1443		}
1444		break;
1445	default:
1446		spin_unlock(&chip->lock);
1447		return -EINVAL;
1448	}
1449	spin_unlock(&chip->lock);
1450	return 0;
1451}
1452
1453static int snd_riptide_prepare(struct snd_pcm_substream *substream)
1454{
1455	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1456	struct snd_pcm_runtime *runtime = substream->runtime;
1457	struct pcmhw *data = get_pcmhwdev(substream);
1458	struct cmdif *cif = chip->cif;
1459	unsigned char *lbuspath = NULL;
1460	unsigned int rate, channels;
1461	int err = 0;
1462	snd_pcm_format_t format;
1463
1464	if (snd_BUG_ON(!cif || !data))
1465		return -EINVAL;
1466
1467	snd_printdd("prepare id %d ch: %d f:0x%x r:%d\n", data->id,
1468		    runtime->channels, runtime->format, runtime->rate);
1469
1470	spin_lock_irq(&chip->lock);
1471	channels = runtime->channels;
1472	format = runtime->format;
1473	rate = runtime->rate;
1474	switch (channels) {
1475	case 1:
1476		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1477			lbuspath = data->paths.noconv;
1478		else
1479			lbuspath = data->paths.mono;
1480		break;
1481	case 2:
1482		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1483			lbuspath = data->paths.noconv;
1484		else
1485			lbuspath = data->paths.stereo;
1486		break;
1487	}
1488	snd_printdd("use sgdlist at 0x%p\n",
1489		    data->sgdlist.area);
1490	if (data->sgdlist.area) {
1491		unsigned int i, j, size, pages, f, pt, period;
1492		struct sgd *c, *p = NULL;
1493
1494		size = frames_to_bytes(runtime, runtime->buffer_size);
1495		period = frames_to_bytes(runtime, runtime->period_size);
1496		f = PAGE_SIZE;
1497		while ((size + (f >> 1) - 1) <= (f << 7) && (f << 1) > period)
1498			f = f >> 1;
1499		pages = (size + f - 1) / f;
1500		data->size = size;
1501		data->pages = pages;
1502		snd_printdd
1503		    ("create sgd size: 0x%x pages %d of size 0x%x for period 0x%x\n",
1504		     size, pages, f, period);
1505		pt = 0;
1506		j = 0;
1507		for (i = 0; i < pages; i++) {
1508			unsigned int ofs, addr;
1509			c = &data->sgdbuf[i];
1510			if (p)
1511				p->dwNextLink = cpu_to_le32(data->sgdlist.addr +
1512							    (i *
1513							     sizeof(struct
1514								    sgd)));
1515			c->dwNextLink = cpu_to_le32(data->sgdlist.addr);
1516			ofs = j << PAGE_SHIFT;
1517			addr = snd_pcm_sgbuf_get_addr(substream, ofs) + pt;
1518			c->dwSegPtrPhys = cpu_to_le32(addr);
1519			pt = (pt + f) % PAGE_SIZE;
1520			if (pt == 0)
1521				j++;
1522			c->dwSegLen = cpu_to_le32(f);
1523			c->dwStat_Ctl =
1524			    cpu_to_le32(IEOB_ENABLE | IEOS_ENABLE |
1525					IEOC_ENABLE);
1526			p = c;
1527			size -= f;
1528		}
1529		data->sgdbuf[i].dwSegLen = cpu_to_le32(size);
1530	}
1531	if (lbuspath && lbuspath != data->lbuspath) {
1532		if (data->lbuspath)
1533			freelbuspath(cif, data->source, data->lbuspath);
1534		alloclbuspath(cif, data->source, lbuspath,
1535			      &data->mixer, data->intdec);
1536		data->lbuspath = lbuspath;
1537		data->rate = 0;
1538	}
1539	if (data->rate != rate || data->format != format ||
1540	    data->channels != channels) {
1541		data->rate = rate;
1542		data->format = format;
1543		data->channels = channels;
1544		if (setsampleformat
1545		    (cif, data->mixer, data->id, channels, format)
1546		    || setsamplerate(cif, data->intdec, rate))
1547			err = -EIO;
1548	}
1549	spin_unlock_irq(&chip->lock);
1550	return err;
1551}
1552
1553static int
1554snd_riptide_hw_params(struct snd_pcm_substream *substream,
1555		      struct snd_pcm_hw_params *hw_params)
1556{
1557	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1558	struct pcmhw *data = get_pcmhwdev(substream);
1559	struct snd_dma_buffer *sgdlist = &data->sgdlist;
1560	int err;
1561
1562	snd_printdd("hw params id %d (sgdlist: 0x%p 0x%lx %d)\n", data->id,
1563		    sgdlist->area, (unsigned long)sgdlist->addr,
1564		    (int)sgdlist->bytes);
1565	if (sgdlist->area)
1566		snd_dma_free_pages(sgdlist);
1567	if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
1568				       snd_dma_pci_data(chip->pci),
1569				       sizeof(struct sgd) * (DESC_MAX_MASK + 1),
1570				       sgdlist)) < 0) {
1571		snd_printk(KERN_ERR "Riptide: failed to alloc %d dma bytes\n",
1572			   (int)sizeof(struct sgd) * (DESC_MAX_MASK + 1));
1573		return err;
1574	}
1575	data->sgdbuf = (struct sgd *)sgdlist->area;
1576	return snd_pcm_lib_malloc_pages(substream,
1577					params_buffer_bytes(hw_params));
1578}
1579
1580static int snd_riptide_hw_free(struct snd_pcm_substream *substream)
1581{
1582	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1583	struct pcmhw *data = get_pcmhwdev(substream);
1584	struct cmdif *cif = chip->cif;
1585
1586	if (cif && data) {
1587		if (data->lbuspath)
1588			freelbuspath(cif, data->source, data->lbuspath);
1589		data->lbuspath = NULL;
1590		data->source = 0xff;
1591		data->intdec[0] = 0xff;
1592		data->intdec[1] = 0xff;
1593
1594		if (data->sgdlist.area) {
1595			snd_dma_free_pages(&data->sgdlist);
1596			data->sgdlist.area = NULL;
1597		}
1598	}
1599	return snd_pcm_lib_free_pages(substream);
1600}
1601
1602static int snd_riptide_playback_open(struct snd_pcm_substream *substream)
1603{
1604	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1605	struct snd_pcm_runtime *runtime = substream->runtime;
1606	struct pcmhw *data;
1607	int sub_num = substream->number;
1608
1609	chip->playback_substream[sub_num] = substream;
1610	runtime->hw = snd_riptide_playback;
1611
1612	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
1613	if (data == NULL)
1614		return -ENOMEM;
1615	data->paths = lbus_play_paths[sub_num];
1616	data->id = play_ids[sub_num];
1617	data->source = play_sources[sub_num];
1618	data->intdec[0] = 0xff;
1619	data->intdec[1] = 0xff;
1620	data->state = ST_STOP;
1621	runtime->private_data = data;
1622	return snd_pcm_hw_constraint_integer(runtime,
1623					     SNDRV_PCM_HW_PARAM_PERIODS);
1624}
1625
1626static int snd_riptide_capture_open(struct snd_pcm_substream *substream)
1627{
1628	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1629	struct snd_pcm_runtime *runtime = substream->runtime;
1630	struct pcmhw *data;
1631
1632	chip->capture_substream = substream;
1633	runtime->hw = snd_riptide_capture;
1634
1635	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
1636	if (data == NULL)
1637		return -ENOMEM;
1638	data->paths = lbus_rec_path;
1639	data->id = PADC;
1640	data->source = ACLNK2PADC;
1641	data->intdec[0] = 0xff;
1642	data->intdec[1] = 0xff;
1643	data->state = ST_STOP;
1644	runtime->private_data = data;
1645	return snd_pcm_hw_constraint_integer(runtime,
1646					     SNDRV_PCM_HW_PARAM_PERIODS);
1647}
1648
1649static int snd_riptide_playback_close(struct snd_pcm_substream *substream)
1650{
1651	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1652	struct pcmhw *data = get_pcmhwdev(substream);
1653	int sub_num = substream->number;
1654
1655	substream->runtime->private_data = NULL;
1656	chip->playback_substream[sub_num] = NULL;
1657	kfree(data);
1658	return 0;
1659}
1660
1661static int snd_riptide_capture_close(struct snd_pcm_substream *substream)
1662{
1663	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1664	struct pcmhw *data = get_pcmhwdev(substream);
1665
1666	substream->runtime->private_data = NULL;
1667	chip->capture_substream = NULL;
1668	kfree(data);
1669	return 0;
1670}
1671
1672static struct snd_pcm_ops snd_riptide_playback_ops = {
1673	.open = snd_riptide_playback_open,
1674	.close = snd_riptide_playback_close,
1675	.ioctl = snd_pcm_lib_ioctl,
1676	.hw_params = snd_riptide_hw_params,
1677	.hw_free = snd_riptide_hw_free,
1678	.prepare = snd_riptide_prepare,
1679	.page = snd_pcm_sgbuf_ops_page,
1680	.trigger = snd_riptide_trigger,
1681	.pointer = snd_riptide_pointer,
1682};
1683static struct snd_pcm_ops snd_riptide_capture_ops = {
1684	.open = snd_riptide_capture_open,
1685	.close = snd_riptide_capture_close,
1686	.ioctl = snd_pcm_lib_ioctl,
1687	.hw_params = snd_riptide_hw_params,
1688	.hw_free = snd_riptide_hw_free,
1689	.prepare = snd_riptide_prepare,
1690	.page = snd_pcm_sgbuf_ops_page,
1691	.trigger = snd_riptide_trigger,
1692	.pointer = snd_riptide_pointer,
1693};
1694
1695static int snd_riptide_pcm(struct snd_riptide *chip, int device)
1696{
1697	struct snd_pcm *pcm;
1698	int err;
1699
1700	if ((err =
1701	     snd_pcm_new(chip->card, "RIPTIDE", device, PLAYBACK_SUBSTREAMS, 1,
1702			 &pcm)) < 0)
1703		return err;
1704	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1705			&snd_riptide_playback_ops);
1706	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1707			&snd_riptide_capture_ops);
1708	pcm->private_data = chip;
1709	pcm->info_flags = 0;
1710	strcpy(pcm->name, "RIPTIDE");
1711	chip->pcm = pcm;
1712	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1713					      snd_dma_pci_data(chip->pci),
1714					      64 * 1024, 128 * 1024);
1715	return 0;
1716}
1717
1718static irqreturn_t
1719snd_riptide_interrupt(int irq, void *dev_id)
1720{
1721	struct snd_riptide *chip = dev_id;
1722	struct cmdif *cif = chip->cif;
1723
1724	if (cif) {
1725		chip->received_irqs++;
1726		if (IS_EOBIRQ(cif->hwport) || IS_EOSIRQ(cif->hwport) ||
1727		    IS_EOCIRQ(cif->hwport)) {
1728			chip->handled_irqs++;
1729			tasklet_schedule(&chip->riptide_tq);
1730		}
1731		if (chip->rmidi && IS_MPUIRQ(cif->hwport)) {
1732			chip->handled_irqs++;
1733			snd_mpu401_uart_interrupt(irq,
1734						  chip->rmidi->private_data);
1735		}
1736		SET_AIACK(cif->hwport);
1737	}
1738	return IRQ_HANDLED;
1739}
1740
1741static void
1742snd_riptide_codec_write(struct snd_ac97 *ac97, unsigned short reg,
1743			unsigned short val)
1744{
1745	struct snd_riptide *chip = ac97->private_data;
1746	struct cmdif *cif = chip->cif;
1747	union cmdret rptr = CMDRET_ZERO;
1748	int i = 0;
1749
1750	if (snd_BUG_ON(!cif))
1751		return;
1752
1753	snd_printdd("Write AC97 reg 0x%x 0x%x\n", reg, val);
1754	do {
1755		SEND_SACR(cif, val, reg);
1756		SEND_RACR(cif, reg, &rptr);
1757	} while (rptr.retwords[1] != val && i++ < MAX_WRITE_RETRY);
1758	if (i > MAX_WRITE_RETRY)
1759		snd_printdd("Write AC97 reg failed\n");
1760}
1761
1762static unsigned short snd_riptide_codec_read(struct snd_ac97 *ac97,
1763					     unsigned short reg)
1764{
1765	struct snd_riptide *chip = ac97->private_data;
1766	struct cmdif *cif = chip->cif;
1767	union cmdret rptr = CMDRET_ZERO;
1768
1769	if (snd_BUG_ON(!cif))
1770		return 0;
1771
1772	if (SEND_RACR(cif, reg, &rptr) != 0)
1773		SEND_RACR(cif, reg, &rptr);
1774	snd_printdd("Read AC97 reg 0x%x got 0x%x\n", reg, rptr.retwords[1]);
1775	return rptr.retwords[1];
1776}
1777
1778static int snd_riptide_initialize(struct snd_riptide *chip)
1779{
1780	struct cmdif *cif;
1781	unsigned int device_id;
1782	int err;
1783
1784	if (snd_BUG_ON(!chip))
1785		return -EINVAL;
1786
1787	cif = chip->cif;
1788	if (!cif) {
1789		if ((cif = kzalloc(sizeof(struct cmdif), GFP_KERNEL)) == NULL)
1790			return -ENOMEM;
1791		cif->hwport = (struct riptideport *)chip->port;
1792		spin_lock_init(&cif->lock);
1793		chip->cif = cif;
1794	}
1795	cif->is_reset = 0;
1796	if ((err = riptide_reset(cif, chip)) != 0)
1797		return err;
1798	device_id = chip->device_id;
1799	switch (device_id) {
1800	case 0x4310:
1801	case 0x4320:
1802	case 0x4330:
1803		snd_printdd("Modem enable?\n");
1804		SEND_SETDPLL(cif);
1805		break;
1806	}
1807	snd_printdd("Enabling MPU IRQs\n");
1808	if (chip->rmidi)
1809		SET_EMPUIRQ(cif->hwport);
1810	return err;
1811}
1812
1813static int snd_riptide_free(struct snd_riptide *chip)
1814{
1815	struct cmdif *cif;
1816
1817	if (!chip)
1818		return 0;
1819
1820	if ((cif = chip->cif)) {
1821		SET_GRESET(cif->hwport);
1822		udelay(100);
1823		UNSET_GRESET(cif->hwport);
1824		kfree(chip->cif);
1825	}
1826	if (chip->irq >= 0)
1827		free_irq(chip->irq, chip);
1828	release_firmware(chip->fw_entry);
1829	release_and_free_resource(chip->res_port);
1830	kfree(chip);
1831	return 0;
1832}
1833
1834static int snd_riptide_dev_free(struct snd_device *device)
1835{
1836	struct snd_riptide *chip = device->device_data;
1837
1838	return snd_riptide_free(chip);
1839}
1840
1841static int
1842snd_riptide_create(struct snd_card *card, struct pci_dev *pci,
1843		   struct snd_riptide **rchip)
1844{
1845	struct snd_riptide *chip;
1846	struct riptideport *hwport;
1847	int err;
1848	static struct snd_device_ops ops = {
1849		.dev_free = snd_riptide_dev_free,
1850	};
1851
1852	*rchip = NULL;
1853	if ((err = pci_enable_device(pci)) < 0)
1854		return err;
1855	if (!(chip = kzalloc(sizeof(struct snd_riptide), GFP_KERNEL)))
1856		return -ENOMEM;
1857
1858	spin_lock_init(&chip->lock);
1859	chip->card = card;
1860	chip->pci = pci;
1861	chip->irq = -1;
1862	chip->openstreams = 0;
1863	chip->port = pci_resource_start(pci, 0);
1864	chip->received_irqs = 0;
1865	chip->handled_irqs = 0;
1866	chip->cif = NULL;
1867	tasklet_init(&chip->riptide_tq, riptide_handleirq, (unsigned long)chip);
1868
1869	if ((chip->res_port =
1870	     request_region(chip->port, 64, "RIPTIDE")) == NULL) {
1871		snd_printk(KERN_ERR
1872			   "Riptide: unable to grab region 0x%lx-0x%lx\n",
1873			   chip->port, chip->port + 64 - 1);
1874		snd_riptide_free(chip);
1875		return -EBUSY;
1876	}
1877	hwport = (struct riptideport *)chip->port;
1878	UNSET_AIE(hwport);
1879
1880	if (request_irq(pci->irq, snd_riptide_interrupt, IRQF_SHARED,
1881			KBUILD_MODNAME, chip)) {
1882		snd_printk(KERN_ERR "Riptide: unable to grab IRQ %d\n",
1883			   pci->irq);
1884		snd_riptide_free(chip);
1885		return -EBUSY;
1886	}
1887	chip->irq = pci->irq;
1888	chip->device_id = pci->device;
1889	pci_set_master(pci);
1890	if ((err = snd_riptide_initialize(chip)) < 0) {
1891		snd_riptide_free(chip);
1892		return err;
1893	}
1894
1895	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1896		snd_riptide_free(chip);
1897		return err;
1898	}
1899
1900	*rchip = chip;
1901	return 0;
1902}
1903
1904static void
1905snd_riptide_proc_read(struct snd_info_entry *entry,
1906		      struct snd_info_buffer *buffer)
1907{
1908	struct snd_riptide *chip = entry->private_data;
1909	struct pcmhw *data;
1910	int i;
1911	struct cmdif *cif = NULL;
1912	unsigned char p[256];
1913	unsigned short rval = 0, lval = 0;
1914	unsigned int rate;
1915
1916	if (!chip)
1917		return;
1918
1919	snd_iprintf(buffer, "%s\n\n", chip->card->longname);
1920	snd_iprintf(buffer, "Device ID: 0x%x\nReceived IRQs: (%ld)%ld\nPorts:",
1921		    chip->device_id, chip->handled_irqs, chip->received_irqs);
1922	for (i = 0; i < 64; i += 4)
1923		snd_iprintf(buffer, "%c%02x: %08x",
1924			    (i % 16) ? ' ' : '\n', i, inl(chip->port + i));
1925	if ((cif = chip->cif)) {
1926		snd_iprintf(buffer,
1927			    "\nVersion: ASIC: %d CODEC: %d AUXDSP: %d PROG: %d",
1928			    chip->firmware.firmware.ASIC,
1929			    chip->firmware.firmware.CODEC,
1930			    chip->firmware.firmware.AUXDSP,
1931			    chip->firmware.firmware.PROG);
1932		snd_iprintf(buffer, "\nDigital mixer:");
1933		for (i = 0; i < 12; i++) {
1934			getmixer(cif, i, &rval, &lval);
1935			snd_iprintf(buffer, "\n %d: %d %d", i, rval, lval);
1936		}
1937		snd_iprintf(buffer,
1938			    "\nARM Commands num: %d failed: %d time: %d max: %d min: %d",
1939			    cif->cmdcnt, cif->errcnt,
1940			    cif->cmdtime, cif->cmdtimemax, cif->cmdtimemin);
1941	}
1942	snd_iprintf(buffer, "\nOpen streams %d:\n", chip->openstreams);
1943	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++) {
1944		if (chip->playback_substream[i]
1945		    && chip->playback_substream[i]->runtime
1946		    && (data =
1947			chip->playback_substream[i]->runtime->private_data)) {
1948			snd_iprintf(buffer,
1949				    "stream: %d mixer: %d source: %d (%d,%d)\n",
1950				    data->id, data->mixer, data->source,
1951				    data->intdec[0], data->intdec[1]);
1952			if (!(getsamplerate(cif, data->intdec, &rate)))
1953				snd_iprintf(buffer, "rate: %d\n", rate);
1954		}
1955	}
1956	if (chip->capture_substream
1957	    && chip->capture_substream->runtime
1958	    && (data = chip->capture_substream->runtime->private_data)) {
1959		snd_iprintf(buffer,
1960			    "stream: %d mixer: %d source: %d (%d,%d)\n",
1961			    data->id, data->mixer,
1962			    data->source, data->intdec[0], data->intdec[1]);
1963		if (!(getsamplerate(cif, data->intdec, &rate)))
1964			snd_iprintf(buffer, "rate: %d\n", rate);
1965	}
1966	snd_iprintf(buffer, "Paths:\n");
1967	i = getpaths(cif, p);
1968	while (i >= 2) {
1969		i -= 2;
1970		snd_iprintf(buffer, "%x->%x ", p[i], p[i + 1]);
1971	}
1972	snd_iprintf(buffer, "\n");
1973}
1974
1975static void snd_riptide_proc_init(struct snd_riptide *chip)
1976{
1977	struct snd_info_entry *entry;
1978
1979	if (!snd_card_proc_new(chip->card, "riptide", &entry))
1980		snd_info_set_text_ops(entry, chip, snd_riptide_proc_read);
1981}
1982
1983static int snd_riptide_mixer(struct snd_riptide *chip)
1984{
1985	struct snd_ac97_bus *pbus;
1986	struct snd_ac97_template ac97;
1987	int err = 0;
1988	static struct snd_ac97_bus_ops ops = {
1989		.write = snd_riptide_codec_write,
1990		.read = snd_riptide_codec_read,
1991	};
1992
1993	memset(&ac97, 0, sizeof(ac97));
1994	ac97.private_data = chip;
1995	ac97.scaps = AC97_SCAP_SKIP_MODEM;
1996
1997	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
1998		return err;
1999
2000	chip->ac97_bus = pbus;
2001	ac97.pci = chip->pci;
2002	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
2003		return err;
2004	return err;
2005}
2006
2007#ifdef SUPPORT_JOYSTICK
2008
2009static int
2010snd_riptide_joystick_probe(struct pci_dev *pci, const struct pci_device_id *id)
2011{
2012	static int dev;
2013	struct gameport *gameport;
2014	int ret;
2015
2016	if (dev >= SNDRV_CARDS)
2017		return -ENODEV;
2018
2019	if (!enable[dev]) {
2020		ret = -ENOENT;
2021		goto inc_dev;
2022	}
2023
2024	if (!joystick_port[dev]) {
2025		ret = 0;
2026		goto inc_dev;
2027	}
2028
2029	gameport = gameport_allocate_port();
2030	if (!gameport) {
2031		ret = -ENOMEM;
2032		goto inc_dev;
2033	}
2034	if (!request_region(joystick_port[dev], 8, "Riptide gameport")) {
2035		snd_printk(KERN_WARNING
2036			   "Riptide: cannot grab gameport 0x%x\n",
2037			   joystick_port[dev]);
2038		gameport_free_port(gameport);
2039		ret = -EBUSY;
2040		goto inc_dev;
2041	}
2042
2043	gameport->io = joystick_port[dev];
2044	gameport_register_port(gameport);
2045	pci_set_drvdata(pci, gameport);
2046
2047	ret = 0;
2048inc_dev:
2049	dev++;
2050	return ret;
2051}
2052
2053static void snd_riptide_joystick_remove(struct pci_dev *pci)
2054{
2055	struct gameport *gameport = pci_get_drvdata(pci);
2056	if (gameport) {
2057		release_region(gameport->io, 8);
2058		gameport_unregister_port(gameport);
2059	}
2060}
2061#endif
2062
2063static int
2064snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2065{
2066	static int dev;
2067	struct snd_card *card;
2068	struct snd_riptide *chip;
2069	unsigned short val;
2070	int err;
2071
2072	if (dev >= SNDRV_CARDS)
2073		return -ENODEV;
2074	if (!enable[dev]) {
2075		dev++;
2076		return -ENOENT;
2077	}
2078
2079	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2080			   0, &card);
2081	if (err < 0)
2082		return err;
2083	err = snd_riptide_create(card, pci, &chip);
2084	if (err < 0)
2085		goto error;
2086	card->private_data = chip;
2087	err = snd_riptide_pcm(chip, 0);
2088	if (err < 0)
2089		goto error;
2090	err = snd_riptide_mixer(chip);
2091	if (err < 0)
2092		goto error;
2093
2094	val = LEGACY_ENABLE_ALL;
2095	if (opl3_port[dev])
2096		val |= LEGACY_ENABLE_FM;
2097#ifdef SUPPORT_JOYSTICK
2098	if (joystick_port[dev])
2099		val |= LEGACY_ENABLE_GAMEPORT;
2100#endif
2101	if (mpu_port[dev])
2102		val |= LEGACY_ENABLE_MPU_INT | LEGACY_ENABLE_MPU;
2103	val |= (chip->irq << 4) & 0xf0;
2104	pci_write_config_word(chip->pci, PCI_EXT_Legacy_Mask, val);
2105	if (mpu_port[dev]) {
2106		val = mpu_port[dev];
2107		pci_write_config_word(chip->pci, PCI_EXT_MPU_Base, val);
2108		err = snd_mpu401_uart_new(card, 0, MPU401_HW_RIPTIDE,
2109					  val, MPU401_INFO_IRQ_HOOK, -1,
2110					  &chip->rmidi);
2111		if (err < 0)
2112			snd_printk(KERN_WARNING
2113				   "Riptide: Can't Allocate MPU at 0x%x\n",
2114				   val);
2115		else
2116			chip->mpuaddr = val;
2117	}
2118	if (opl3_port[dev]) {
2119		val = opl3_port[dev];
2120		pci_write_config_word(chip->pci, PCI_EXT_FM_Base, val);
2121		err = snd_opl3_create(card, val, val + 2,
2122				      OPL3_HW_RIPTIDE, 0, &chip->opl3);
2123		if (err < 0)
2124			snd_printk(KERN_WARNING
2125				   "Riptide: Can't Allocate OPL3 at 0x%x\n",
2126				   val);
2127		else {
2128			chip->opladdr = val;
2129			err = snd_opl3_hwdep_new(chip->opl3, 0, 1, NULL);
2130			if (err < 0)
2131				snd_printk(KERN_WARNING
2132					   "Riptide: Can't Allocate OPL3-HWDEP\n");
2133		}
2134	}
2135#ifdef SUPPORT_JOYSTICK
2136	if (joystick_port[dev]) {
2137		val = joystick_port[dev];
2138		pci_write_config_word(chip->pci, PCI_EXT_Game_Base, val);
2139		chip->gameaddr = val;
2140	}
2141#endif
2142
2143	strcpy(card->driver, "RIPTIDE");
2144	strcpy(card->shortname, "Riptide");
2145#ifdef SUPPORT_JOYSTICK
2146	snprintf(card->longname, sizeof(card->longname),
2147		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x gameport 0x%x",
2148		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
2149		 chip->opladdr, chip->gameaddr);
2150#else
2151	snprintf(card->longname, sizeof(card->longname),
2152		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x",
2153		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
2154		 chip->opladdr);
2155#endif
2156	snd_riptide_proc_init(chip);
2157	err = snd_card_register(card);
2158	if (err < 0)
2159		goto error;
2160	pci_set_drvdata(pci, card);
2161	dev++;
2162	return 0;
2163
2164 error:
2165	snd_card_free(card);
2166	return err;
2167}
2168
2169static void snd_card_riptide_remove(struct pci_dev *pci)
2170{
2171	snd_card_free(pci_get_drvdata(pci));
2172}
2173
2174static struct pci_driver driver = {
2175	.name = KBUILD_MODNAME,
2176	.id_table = snd_riptide_ids,
2177	.probe = snd_card_riptide_probe,
2178	.remove = snd_card_riptide_remove,
2179	.driver = {
2180		.pm = RIPTIDE_PM_OPS,
2181	},
2182};
2183
2184#ifdef SUPPORT_JOYSTICK
2185static struct pci_driver joystick_driver = {
2186	.name = KBUILD_MODNAME "-joystick",
2187	.id_table = snd_riptide_joystick_ids,
2188	.probe = snd_riptide_joystick_probe,
2189	.remove = snd_riptide_joystick_remove,
2190};
2191#endif
2192
2193static int __init alsa_card_riptide_init(void)
2194{
2195	int err;
2196	err = pci_register_driver(&driver);
2197	if (err < 0)
2198		return err;
2199#if defined(SUPPORT_JOYSTICK)
2200	err = pci_register_driver(&joystick_driver);
2201	/* On failure unregister formerly registered audio driver */
2202	if (err < 0)
2203		pci_unregister_driver(&driver);
2204#endif
2205	return err;
2206}
2207
2208static void __exit alsa_card_riptide_exit(void)
2209{
2210	pci_unregister_driver(&driver);
2211#if defined(SUPPORT_JOYSTICK)
2212	pci_unregister_driver(&joystick_driver);
2213#endif
2214}
2215
2216module_init(alsa_card_riptide_init);
2217module_exit(alsa_card_riptide_exit);
2218