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 <asm/io.h>
102#include <sound/core.h>
103#include <sound/info.h>
104#include <sound/control.h>
105#include <sound/pcm.h>
106#include <sound/pcm_params.h>
107#include <sound/ac97_codec.h>
108#include <sound/mpu401.h>
109#include <sound/opl3.h>
110#include <sound/initval.h>
111
112#if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
113#define SUPPORT_JOYSTICK 1
114#endif
115
116MODULE_AUTHOR("Peter Gruber <nokos@gmx.net>");
117MODULE_DESCRIPTION("riptide");
118MODULE_LICENSE("GPL");
119MODULE_SUPPORTED_DEVICE("{{Conexant,Riptide}}");
120MODULE_FIRMWARE("riptide.hex");
121
122static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
123static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
124static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
125
126#ifdef SUPPORT_JOYSTICK
127static int joystick_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x200 };
128#endif
129static int mpu_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x330 };
130static int opl3_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x388 };
131
132module_param_array(index, int, NULL, 0444);
133MODULE_PARM_DESC(index, "Index value for Riptide soundcard.");
134module_param_array(id, charp, NULL, 0444);
135MODULE_PARM_DESC(id, "ID string for Riptide soundcard.");
136module_param_array(enable, bool, NULL, 0444);
137MODULE_PARM_DESC(enable, "Enable Riptide soundcard.");
138#ifdef SUPPORT_JOYSTICK
139module_param_array(joystick_port, int, NULL, 0444);
140MODULE_PARM_DESC(joystick_port, "Joystick port # for Riptide soundcard.");
141#endif
142module_param_array(mpu_port, int, NULL, 0444);
143MODULE_PARM_DESC(mpu_port, "MPU401 port # for Riptide driver.");
144module_param_array(opl3_port, int, NULL, 0444);
145MODULE_PARM_DESC(opl3_port, "OPL3 port # for Riptide driver.");
146
147/*
148 */
149
150#define MPU401_HW_RIPTIDE MPU401_HW_MPU401
151#define OPL3_HW_RIPTIDE   OPL3_HW_OPL3
152
153#define PCI_EXT_CapId       0x40
154#define PCI_EXT_NextCapPrt  0x41
155#define PCI_EXT_PWMC        0x42
156#define PCI_EXT_PWSCR       0x44
157#define PCI_EXT_Data00      0x46
158#define PCI_EXT_PMSCR_BSE   0x47
159#define PCI_EXT_SB_Base     0x48
160#define PCI_EXT_FM_Base     0x4a
161#define PCI_EXT_MPU_Base    0x4C
162#define PCI_EXT_Game_Base   0x4E
163#define PCI_EXT_Legacy_Mask 0x50
164#define PCI_EXT_AsicRev     0x52
165#define PCI_EXT_Reserved3   0x53
166
167#define LEGACY_ENABLE_ALL      0x8000	/* legacy device options */
168#define LEGACY_ENABLE_SB       0x4000
169#define LEGACY_ENABLE_FM       0x2000
170#define LEGACY_ENABLE_MPU_INT  0x1000
171#define LEGACY_ENABLE_MPU      0x0800
172#define LEGACY_ENABLE_GAMEPORT 0x0400
173
174#define MAX_WRITE_RETRY  10	/* cmd interface limits */
175#define MAX_ERROR_COUNT  10
176#define CMDIF_TIMEOUT    50000
177#define RESET_TRIES      5
178
179#define READ_PORT_ULONG(p)     inl((unsigned long)&(p))
180#define WRITE_PORT_ULONG(p,x)  outl(x,(unsigned long)&(p))
181
182#define READ_AUDIO_CONTROL(p)     READ_PORT_ULONG(p->audio_control)
183#define WRITE_AUDIO_CONTROL(p,x)  WRITE_PORT_ULONG(p->audio_control,x)
184#define UMASK_AUDIO_CONTROL(p,x)  WRITE_PORT_ULONG(p->audio_control,READ_PORT_ULONG(p->audio_control)|x)
185#define MASK_AUDIO_CONTROL(p,x)   WRITE_PORT_ULONG(p->audio_control,READ_PORT_ULONG(p->audio_control)&x)
186#define READ_AUDIO_STATUS(p)      READ_PORT_ULONG(p->audio_status)
187
188#define SET_GRESET(p)     UMASK_AUDIO_CONTROL(p,0x0001)	/* global reset switch */
189#define UNSET_GRESET(p)   MASK_AUDIO_CONTROL(p,~0x0001)
190#define SET_AIE(p)        UMASK_AUDIO_CONTROL(p,0x0004)	/* interrupt enable */
191#define UNSET_AIE(p)      MASK_AUDIO_CONTROL(p,~0x0004)
192#define SET_AIACK(p)      UMASK_AUDIO_CONTROL(p,0x0008)	/* interrupt acknowledge */
193#define UNSET_AIACKT(p)   MASKAUDIO_CONTROL(p,~0x0008)
194#define SET_ECMDAE(p)     UMASK_AUDIO_CONTROL(p,0x0010)
195#define UNSET_ECMDAE(p)   MASK_AUDIO_CONTROL(p,~0x0010)
196#define SET_ECMDBE(p)     UMASK_AUDIO_CONTROL(p,0x0020)
197#define UNSET_ECMDBE(p)   MASK_AUDIO_CONTROL(p,~0x0020)
198#define SET_EDATAF(p)     UMASK_AUDIO_CONTROL(p,0x0040)
199#define UNSET_EDATAF(p)   MASK_AUDIO_CONTROL(p,~0x0040)
200#define SET_EDATBF(p)     UMASK_AUDIO_CONTROL(p,0x0080)
201#define UNSET_EDATBF(p)   MASK_AUDIO_CONTROL(p,~0x0080)
202#define SET_ESBIRQON(p)   UMASK_AUDIO_CONTROL(p,0x0100)
203#define UNSET_ESBIRQON(p) MASK_AUDIO_CONTROL(p,~0x0100)
204#define SET_EMPUIRQ(p)    UMASK_AUDIO_CONTROL(p,0x0200)
205#define UNSET_EMPUIRQ(p)  MASK_AUDIO_CONTROL(p,~0x0200)
206#define IS_CMDE(a)        (READ_PORT_ULONG(a->stat)&0x1)	/* cmd empty */
207#define IS_DATF(a)        (READ_PORT_ULONG(a->stat)&0x2)	/* data filled */
208#define IS_READY(p)       (READ_AUDIO_STATUS(p)&0x0001)
209#define IS_DLREADY(p)     (READ_AUDIO_STATUS(p)&0x0002)
210#define IS_DLERR(p)       (READ_AUDIO_STATUS(p)&0x0004)
211#define IS_GERR(p)        (READ_AUDIO_STATUS(p)&0x0008)	/* error ! */
212#define IS_CMDAEIRQ(p)    (READ_AUDIO_STATUS(p)&0x0010)
213#define IS_CMDBEIRQ(p)    (READ_AUDIO_STATUS(p)&0x0020)
214#define IS_DATAFIRQ(p)    (READ_AUDIO_STATUS(p)&0x0040)
215#define IS_DATBFIRQ(p)    (READ_AUDIO_STATUS(p)&0x0080)
216#define IS_EOBIRQ(p)      (READ_AUDIO_STATUS(p)&0x0100)	/* interrupt status */
217#define IS_EOSIRQ(p)      (READ_AUDIO_STATUS(p)&0x0200)
218#define IS_EOCIRQ(p)      (READ_AUDIO_STATUS(p)&0x0400)
219#define IS_UNSLIRQ(p)     (READ_AUDIO_STATUS(p)&0x0800)
220#define IS_SBIRQ(p)       (READ_AUDIO_STATUS(p)&0x1000)
221#define IS_MPUIRQ(p)      (READ_AUDIO_STATUS(p)&0x2000)
222
223#define RESP 0x00000001		/* command flags */
224#define PARM 0x00000002
225#define CMDA 0x00000004
226#define CMDB 0x00000008
227#define NILL 0x00000000
228
229#define LONG0(a)   ((u32)a)	/* shifts and masks */
230#define BYTE0(a)   (LONG0(a)&0xff)
231#define BYTE1(a)   (BYTE0(a)<<8)
232#define BYTE2(a)   (BYTE0(a)<<16)
233#define BYTE3(a)   (BYTE0(a)<<24)
234#define WORD0(a)   (LONG0(a)&0xffff)
235#define WORD1(a)   (WORD0(a)<<8)
236#define WORD2(a)   (WORD0(a)<<16)
237#define TRINIB0(a) (LONG0(a)&0xffffff)
238#define TRINIB1(a) (TRINIB0(a)<<8)
239
240#define RET(a)     ((union cmdret *)(a))
241
242#define SEND_GETV(p,b)             sendcmd(p,RESP,GETV,0,RET(b))	/* get version */
243#define SEND_GETC(p,b,c)           sendcmd(p,PARM|RESP,GETC,c,RET(b))
244#define SEND_GUNS(p,b)             sendcmd(p,RESP,GUNS,0,RET(b))
245#define SEND_SCID(p,b)             sendcmd(p,RESP,SCID,0,RET(b))
246#define SEND_RMEM(p,b,c,d)         sendcmd(p,PARM|RESP,RMEM|BYTE1(b),LONG0(c),RET(d))	/* memory access for firmware write */
247#define SEND_SMEM(p,b,c)           sendcmd(p,PARM,SMEM|BYTE1(b),LONG0(c),RET(0))	/* memory access for firmware write */
248#define SEND_WMEM(p,b,c)           sendcmd(p,PARM,WMEM|BYTE1(b),LONG0(c),RET(0))	/* memory access for firmware write */
249#define SEND_SDTM(p,b,c)           sendcmd(p,PARM|RESP,SDTM|TRINIB1(b),0,RET(c))	/* memory access for firmware write */
250#define SEND_GOTO(p,b)             sendcmd(p,PARM,GOTO,LONG0(b),RET(0))	/* memory access for firmware write */
251#define SEND_SETDPLL(p)	           sendcmd(p,0,ARM_SETDPLL,0,RET(0))
252#define SEND_SSTR(p,b,c)           sendcmd(p,PARM,SSTR|BYTE3(b),LONG0(c),RET(0))	/* start stream */
253#define SEND_PSTR(p,b)             sendcmd(p,PARM,PSTR,BYTE3(b),RET(0))	/* pause stream */
254#define SEND_KSTR(p,b)             sendcmd(p,PARM,KSTR,BYTE3(b),RET(0))	/* stop stream */
255#define SEND_KDMA(p)               sendcmd(p,0,KDMA,0,RET(0))	/* stop all dma */
256#define SEND_GPOS(p,b,c,d)         sendcmd(p,PARM|RESP,GPOS,BYTE3(c)|BYTE2(b),RET(d))	/* get position in dma */
257#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 */
258#define SEND_GSTS(p,b,c,d)         sendcmd(p,PARM|RESP,GSTS,BYTE3(c)|BYTE2(b),RET(d))
259#define SEND_NGPOS(p,b,c,d)        sendcmd(p,PARM|RESP,NGPOS,BYTE3(c)|BYTE2(b),RET(d))
260#define SEND_PSEL(p,b,c)           sendcmd(p,PARM,PSEL,BYTE2(b)|BYTE3(c),RET(0))	/* activate lbus path */
261#define SEND_PCLR(p,b,c)           sendcmd(p,PARM,PCLR,BYTE2(b)|BYTE3(c),RET(0))	/* deactivate lbus path */
262#define SEND_PLST(p,b)             sendcmd(p,PARM,PLST,BYTE3(b),RET(0))
263#define SEND_RSSV(p,b,c,d)         sendcmd(p,PARM|RESP,RSSV,BYTE2(b)|BYTE3(c),RET(d))
264#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 */
265#define SEND_SSRC(p,b,c,d,e)       sendcmd(p,PARM,SSRC|BYTE1(b)|WORD2(c),WORD0(d)|WORD2(e),RET(0))	/* configure source */
266#define SEND_SLST(p,b)             sendcmd(p,PARM,SLST,BYTE3(b),RET(0))
267#define SEND_RSRC(p,b,c)           sendcmd(p,RESP,RSRC|BYTE1(b),0,RET(c))	/* read source config */
268#define SEND_SSRB(p,b,c)           sendcmd(p,PARM,SSRB|BYTE1(b),WORD2(c),RET(0))
269#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 */
270#define SEND_RDGV(p,b,c,d)         sendcmd(p,PARM|RESP,RDGV|BYTE2(b)|BYTE3(c),0,RET(d))	/* read digital mixer */
271#define SEND_DLST(p,b)             sendcmd(p,PARM,DLST,BYTE3(b),RET(0))
272#define SEND_SACR(p,b,c)           sendcmd(p,PARM,SACR,WORD0(b)|WORD2(c),RET(0))	/* set AC97 register */
273#define SEND_RACR(p,b,c)           sendcmd(p,PARM|RESP,RACR,WORD2(b),RET(c))	/* get AC97 register */
274#define SEND_ALST(p,b)             sendcmd(p,PARM,ALST,BYTE3(b),RET(0))
275#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))
276#define SEND_RXAC(p,b,c,d)         sendcmd(p,PARM|RESP,RXAC,BYTE2(b)|BYTE3(c),RET(d))
277#define SEND_SI2S(p,b)             sendcmd(p,PARM,SI2S,WORD2(b),RET(0))
278
279#define EOB_STATUS         0x80000000	/* status flags : block boundary */
280#define EOS_STATUS         0x40000000	/*              : stoppped */
281#define EOC_STATUS         0x20000000	/*              : stream end */
282#define ERR_STATUS         0x10000000
283#define EMPTY_STATUS       0x08000000
284
285#define IEOB_ENABLE        0x1	/* enable interrupts for status notification above */
286#define IEOS_ENABLE        0x2
287#define IEOC_ENABLE        0x4
288#define RDONCE             0x8
289#define DESC_MAX_MASK      0xff
290
291#define ST_PLAY  0x1		/* stream states */
292#define ST_STOP  0x2
293#define ST_PAUSE 0x4
294
295#define I2S_INTDEC     3	/* config for I2S link */
296#define I2S_MERGER     0
297#define I2S_SPLITTER   0
298#define I2S_MIXER      7
299#define I2S_RATE       44100
300
301#define MODEM_INTDEC   4	/* config for modem link */
302#define MODEM_MERGER   3
303#define MODEM_SPLITTER 0
304#define MODEM_MIXER    11
305
306#define FM_INTDEC      3	/* config for FM/OPL3 link */
307#define FM_MERGER      0
308#define FM_SPLITTER    0
309#define FM_MIXER       9
310
311#define SPLIT_PATH  0x80	/* path splitting flag */
312
313enum FIRMWARE {
314	DATA_REC = 0, EXT_END_OF_FILE, EXT_SEG_ADDR_REC, EXT_GOTO_CMD_REC,
315	EXT_LIN_ADDR_REC,
316};
317
318enum CMDS {
319	GETV = 0x00, GETC, GUNS, SCID, RMEM =
320	    0x10, SMEM, WMEM, SDTM, GOTO, SSTR =
321	    0x20, PSTR, KSTR, KDMA, GPOS, SETF, GSTS, NGPOS, PSEL =
322	    0x30, PCLR, PLST, RSSV, LSEL, SSRC = 0x40, SLST, RSRC, SSRB, SDGV =
323	    0x50, RDGV, DLST, SACR = 0x60, RACR, ALST, TXAC, RXAC, SI2S =
324	    0x70, ARM_SETDPLL = 0x72,
325};
326
327enum E1SOURCE {
328	ARM2LBUS_FIFO0 = 0, ARM2LBUS_FIFO1, ARM2LBUS_FIFO2, ARM2LBUS_FIFO3,
329	ARM2LBUS_FIFO4, ARM2LBUS_FIFO5, ARM2LBUS_FIFO6, ARM2LBUS_FIFO7,
330	ARM2LBUS_FIFO8, ARM2LBUS_FIFO9, ARM2LBUS_FIFO10, ARM2LBUS_FIFO11,
331	ARM2LBUS_FIFO12, ARM2LBUS_FIFO13, ARM2LBUS_FIFO14, ARM2LBUS_FIFO15,
332	INTER0_OUT, INTER1_OUT, INTER2_OUT, INTER3_OUT, INTER4_OUT,
333	INTERM0_OUT, INTERM1_OUT, INTERM2_OUT, INTERM3_OUT, INTERM4_OUT,
334	INTERM5_OUT, INTERM6_OUT, DECIMM0_OUT, DECIMM1_OUT, DECIMM2_OUT,
335	DECIMM3_OUT, DECIM0_OUT, SR3_4_OUT, OPL3_SAMPLE, ASRC0, ASRC1,
336	ACLNK2PADC, ACLNK2MODEM0RX, ACLNK2MIC, ACLNK2MODEM1RX, ACLNK2HNDMIC,
337	DIGITAL_MIXER_OUT0, GAINFUNC0_OUT, GAINFUNC1_OUT, GAINFUNC2_OUT,
338	GAINFUNC3_OUT, GAINFUNC4_OUT, SOFTMODEMTX, SPLITTER0_OUTL,
339	SPLITTER0_OUTR, SPLITTER1_OUTL, SPLITTER1_OUTR, SPLITTER2_OUTL,
340	SPLITTER2_OUTR, SPLITTER3_OUTL, SPLITTER3_OUTR, MERGER0_OUT,
341	MERGER1_OUT, MERGER2_OUT, MERGER3_OUT, ARM2LBUS_FIFO_DIRECT, NO_OUT
342};
343
344enum E2SINK {
345	LBUS2ARM_FIFO0 = 0, LBUS2ARM_FIFO1, LBUS2ARM_FIFO2, LBUS2ARM_FIFO3,
346	LBUS2ARM_FIFO4, LBUS2ARM_FIFO5, LBUS2ARM_FIFO6, LBUS2ARM_FIFO7,
347	INTER0_IN, INTER1_IN, INTER2_IN, INTER3_IN, INTER4_IN, INTERM0_IN,
348	INTERM1_IN, INTERM2_IN, INTERM3_IN, INTERM4_IN, INTERM5_IN, INTERM6_IN,
349	DECIMM0_IN, DECIMM1_IN, DECIMM2_IN, DECIMM3_IN, DECIM0_IN, SR3_4_IN,
350	PDAC2ACLNK, MODEM0TX2ACLNK, MODEM1TX2ACLNK, HNDSPK2ACLNK,
351	DIGITAL_MIXER_IN0, DIGITAL_MIXER_IN1, DIGITAL_MIXER_IN2,
352	DIGITAL_MIXER_IN3, DIGITAL_MIXER_IN4, DIGITAL_MIXER_IN5,
353	DIGITAL_MIXER_IN6, DIGITAL_MIXER_IN7, DIGITAL_MIXER_IN8,
354	DIGITAL_MIXER_IN9, DIGITAL_MIXER_IN10, DIGITAL_MIXER_IN11,
355	GAINFUNC0_IN, GAINFUNC1_IN, GAINFUNC2_IN, GAINFUNC3_IN, GAINFUNC4_IN,
356	SOFTMODEMRX, SPLITTER0_IN, SPLITTER1_IN, SPLITTER2_IN, SPLITTER3_IN,
357	MERGER0_INL, MERGER0_INR, MERGER1_INL, MERGER1_INR, MERGER2_INL,
358	MERGER2_INR, MERGER3_INL, MERGER3_INR, E2SINK_MAX
359};
360
361enum LBUS_SINK {
362	LS_SRC_INTERPOLATOR = 0, LS_SRC_INTERPOLATORM, LS_SRC_DECIMATOR,
363	LS_SRC_DECIMATORM, LS_MIXER_IN, LS_MIXER_GAIN_FUNCTION,
364	LS_SRC_SPLITTER, LS_SRC_MERGER, LS_NONE1, LS_NONE2,
365};
366
367enum RT_CHANNEL_IDS {
368	M0TX = 0, M1TX, TAMTX, HSSPKR, PDAC, DSNDTX0, DSNDTX1, DSNDTX2,
369	DSNDTX3, DSNDTX4, DSNDTX5, DSNDTX6, DSNDTX7, WVSTRTX, COP3DTX, SPARE,
370	M0RX, HSMIC, M1RX, CLEANRX, MICADC, PADC, COPRX1, COPRX2,
371	CHANNEL_ID_COUNTER
372};
373
374enum { SB_CMD = 0, MODEM_CMD, I2S_CMD0, I2S_CMD1, FM_CMD, MAX_CMD };
375
376struct lbuspath {
377	unsigned char *noconv;
378	unsigned char *stereo;
379	unsigned char *mono;
380};
381
382struct cmdport {
383	u32 data1;		/* cmd,param */
384	u32 data2;		/* param */
385	u32 stat;		/* status */
386	u32 pad[5];
387};
388
389struct riptideport {
390	u32 audio_control;	/* status registers */
391	u32 audio_status;
392	u32 pad[2];
393	struct cmdport port[2];	/* command ports */
394};
395
396struct cmdif {
397	struct riptideport *hwport;
398	spinlock_t lock;
399	unsigned int cmdcnt;	/* cmd statistics */
400	unsigned int cmdtime;
401	unsigned int cmdtimemax;
402	unsigned int cmdtimemin;
403	unsigned int errcnt;
404	int is_reset;
405};
406
407struct riptide_firmware {
408	u16 ASIC;
409	u16 CODEC;
410	u16 AUXDSP;
411	u16 PROG;
412};
413
414union cmdret {
415	u8 retbytes[8];
416	u16 retwords[4];
417	u32 retlongs[2];
418};
419
420union firmware_version {
421	union cmdret ret;
422	struct riptide_firmware firmware;
423};
424
425#define get_pcmhwdev(substream) (struct pcmhw *)(substream->runtime->private_data)
426
427#define PLAYBACK_SUBSTREAMS 3
428struct snd_riptide {
429	struct snd_card *card;
430	struct pci_dev *pci;
431	const struct firmware *fw_entry;
432
433	struct cmdif *cif;
434
435	struct snd_pcm *pcm;
436	struct snd_pcm *pcm_i2s;
437	struct snd_rawmidi *rmidi;
438	struct snd_opl3 *opl3;
439	struct snd_ac97 *ac97;
440	struct snd_ac97_bus *ac97_bus;
441
442	struct snd_pcm_substream *playback_substream[PLAYBACK_SUBSTREAMS];
443	struct snd_pcm_substream *capture_substream;
444
445	int openstreams;
446
447	int irq;
448	unsigned long port;
449	unsigned short mpuaddr;
450	unsigned short opladdr;
451#ifdef SUPPORT_JOYSTICK
452	unsigned short gameaddr;
453#endif
454	struct resource *res_port;
455
456	unsigned short device_id;
457
458	union firmware_version firmware;
459
460	spinlock_t lock;
461	struct tasklet_struct riptide_tq;
462	struct snd_info_entry *proc_entry;
463
464	unsigned long received_irqs;
465	unsigned long handled_irqs;
466#ifdef CONFIG_PM
467	int in_suspend;
468#endif
469};
470
471struct sgd {			/* scatter gather desriptor */
472	u32 dwNextLink;
473	u32 dwSegPtrPhys;
474	u32 dwSegLen;
475	u32 dwStat_Ctl;
476};
477
478struct pcmhw {			/* pcm descriptor */
479	struct lbuspath paths;
480	unsigned char *lbuspath;
481	unsigned char source;
482	unsigned char intdec[2];
483	unsigned char mixer;
484	unsigned char id;
485	unsigned char state;
486	unsigned int rate;
487	unsigned int channels;
488	snd_pcm_format_t format;
489	struct snd_dma_buffer sgdlist;
490	struct sgd *sgdbuf;
491	unsigned int size;
492	unsigned int pages;
493	unsigned int oldpos;
494	unsigned int pointer;
495};
496
497#define CMDRET_ZERO (union cmdret){{(u32)0, (u32) 0}}
498
499static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
500		   union cmdret *ret);
501static int getsourcesink(struct cmdif *cif, unsigned char source,
502			 unsigned char sink, unsigned char *a,
503			 unsigned char *b);
504static int snd_riptide_initialize(struct snd_riptide *chip);
505static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip);
506
507/*
508 */
509
510static DEFINE_PCI_DEVICE_TABLE(snd_riptide_ids) = {
511	{ PCI_DEVICE(0x127a, 0x4310) },
512	{ PCI_DEVICE(0x127a, 0x4320) },
513	{ PCI_DEVICE(0x127a, 0x4330) },
514	{ PCI_DEVICE(0x127a, 0x4340) },
515	{0,},
516};
517
518#ifdef SUPPORT_JOYSTICK
519static DEFINE_PCI_DEVICE_TABLE(snd_riptide_joystick_ids) = {
520	{ PCI_DEVICE(0x127a, 0x4312) },
521	{ PCI_DEVICE(0x127a, 0x4322) },
522	{ PCI_DEVICE(0x127a, 0x4332) },
523	{ PCI_DEVICE(0x127a, 0x4342) },
524	{0,},
525};
526#endif
527
528MODULE_DEVICE_TABLE(pci, snd_riptide_ids);
529
530/*
531 */
532
533static unsigned char lbusin2out[E2SINK_MAX + 1][2] = {
534	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
535								     LS_NONE2},
536	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
537								     LS_NONE2},
538	{INTER0_OUT, LS_SRC_INTERPOLATOR}, {INTER1_OUT, LS_SRC_INTERPOLATOR},
539	{INTER2_OUT, LS_SRC_INTERPOLATOR}, {INTER3_OUT, LS_SRC_INTERPOLATOR},
540	{INTER4_OUT, LS_SRC_INTERPOLATOR}, {INTERM0_OUT, LS_SRC_INTERPOLATORM},
541	{INTERM1_OUT, LS_SRC_INTERPOLATORM}, {INTERM2_OUT,
542					      LS_SRC_INTERPOLATORM},
543	{INTERM3_OUT, LS_SRC_INTERPOLATORM}, {INTERM4_OUT,
544					      LS_SRC_INTERPOLATORM},
545	{INTERM5_OUT, LS_SRC_INTERPOLATORM}, {INTERM6_OUT,
546					      LS_SRC_INTERPOLATORM},
547	{DECIMM0_OUT, LS_SRC_DECIMATORM}, {DECIMM1_OUT, LS_SRC_DECIMATORM},
548	{DECIMM2_OUT, LS_SRC_DECIMATORM}, {DECIMM3_OUT, LS_SRC_DECIMATORM},
549	{DECIM0_OUT, LS_SRC_DECIMATOR}, {SR3_4_OUT, LS_NONE1}, {NO_OUT,
550								LS_NONE2},
551	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1},
552	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
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	{GAINFUNC0_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC1_OUT,
559						  LS_MIXER_GAIN_FUNCTION},
560	{GAINFUNC2_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC3_OUT,
561						  LS_MIXER_GAIN_FUNCTION},
562	{GAINFUNC4_OUT, LS_MIXER_GAIN_FUNCTION}, {SOFTMODEMTX, LS_NONE1},
563	{SPLITTER0_OUTL, LS_SRC_SPLITTER}, {SPLITTER1_OUTL, LS_SRC_SPLITTER},
564	{SPLITTER2_OUTL, LS_SRC_SPLITTER}, {SPLITTER3_OUTL, LS_SRC_SPLITTER},
565	{MERGER0_OUT, LS_SRC_MERGER}, {MERGER0_OUT, LS_SRC_MERGER},
566	{MERGER1_OUT, LS_SRC_MERGER},
567	{MERGER1_OUT, LS_SRC_MERGER}, {MERGER2_OUT, LS_SRC_MERGER},
568	{MERGER2_OUT, LS_SRC_MERGER},
569	{MERGER3_OUT, LS_SRC_MERGER}, {MERGER3_OUT, LS_SRC_MERGER}, {NO_OUT,
570								     LS_NONE2},
571};
572
573static unsigned char lbus_play_opl3[] = {
574	DIGITAL_MIXER_IN0 + FM_MIXER, 0xff
575};
576static unsigned char lbus_play_modem[] = {
577	DIGITAL_MIXER_IN0 + MODEM_MIXER, 0xff
578};
579static unsigned char lbus_play_i2s[] = {
580	INTER0_IN + I2S_INTDEC, DIGITAL_MIXER_IN0 + I2S_MIXER, 0xff
581};
582static unsigned char lbus_play_out[] = {
583	PDAC2ACLNK, 0xff
584};
585static unsigned char lbus_play_outhp[] = {
586	HNDSPK2ACLNK, 0xff
587};
588static unsigned char lbus_play_noconv1[] = {
589	DIGITAL_MIXER_IN0, 0xff
590};
591static unsigned char lbus_play_stereo1[] = {
592	INTER0_IN, DIGITAL_MIXER_IN0, 0xff
593};
594static unsigned char lbus_play_mono1[] = {
595	INTERM0_IN, DIGITAL_MIXER_IN0, 0xff
596};
597static unsigned char lbus_play_noconv2[] = {
598	DIGITAL_MIXER_IN1, 0xff
599};
600static unsigned char lbus_play_stereo2[] = {
601	INTER1_IN, DIGITAL_MIXER_IN1, 0xff
602};
603static unsigned char lbus_play_mono2[] = {
604	INTERM1_IN, DIGITAL_MIXER_IN1, 0xff
605};
606static unsigned char lbus_play_noconv3[] = {
607	DIGITAL_MIXER_IN2, 0xff
608};
609static unsigned char lbus_play_stereo3[] = {
610	INTER2_IN, DIGITAL_MIXER_IN2, 0xff
611};
612static unsigned char lbus_play_mono3[] = {
613	INTERM2_IN, DIGITAL_MIXER_IN2, 0xff
614};
615static unsigned char lbus_rec_noconv1[] = {
616	LBUS2ARM_FIFO5, 0xff
617};
618static unsigned char lbus_rec_stereo1[] = {
619	DECIM0_IN, LBUS2ARM_FIFO5, 0xff
620};
621static unsigned char lbus_rec_mono1[] = {
622	DECIMM3_IN, LBUS2ARM_FIFO5, 0xff
623};
624
625static unsigned char play_ids[] = { 4, 1, 2, };
626static unsigned char play_sources[] = {
627	ARM2LBUS_FIFO4, ARM2LBUS_FIFO1, ARM2LBUS_FIFO2,
628};
629static struct lbuspath lbus_play_paths[] = {
630	{
631	 .noconv = lbus_play_noconv1,
632	 .stereo = lbus_play_stereo1,
633	 .mono = lbus_play_mono1,
634	 },
635	{
636	 .noconv = lbus_play_noconv2,
637	 .stereo = lbus_play_stereo2,
638	 .mono = lbus_play_mono2,
639	 },
640	{
641	 .noconv = lbus_play_noconv3,
642	 .stereo = lbus_play_stereo3,
643	 .mono = lbus_play_mono3,
644	 },
645};
646static struct lbuspath lbus_rec_path = {
647	.noconv = lbus_rec_noconv1,
648	.stereo = lbus_rec_stereo1,
649	.mono = lbus_rec_mono1,
650};
651
652#define FIRMWARE_VERSIONS 1
653static union firmware_version firmware_versions[] = {
654	{
655		.firmware = {
656			.ASIC = 3,
657			.CODEC = 2,
658			.AUXDSP = 3,
659			.PROG = 773,
660		},
661	},
662};
663
664static u32 atoh(const unsigned char *in, unsigned int len)
665{
666	u32 sum = 0;
667	unsigned int mult = 1;
668	unsigned char c;
669
670	while (len) {
671		int value;
672
673		c = in[len - 1];
674		value = hex_to_bin(c);
675		if (value >= 0)
676			sum += mult * value;
677		mult *= 16;
678		--len;
679	}
680	return sum;
681}
682
683static int senddata(struct cmdif *cif, const unsigned char *in, u32 offset)
684{
685	u32 addr;
686	u32 data;
687	u32 i;
688	const unsigned char *p;
689
690	i = atoh(&in[1], 2);
691	addr = offset + atoh(&in[3], 4);
692	if (SEND_SMEM(cif, 0, addr) != 0)
693		return -EACCES;
694	p = in + 9;
695	while (i) {
696		data = atoh(p, 8);
697		if (SEND_WMEM(cif, 2,
698			      ((data & 0x0f0f0f0f) << 4) | ((data & 0xf0f0f0f0)
699							    >> 4)))
700			return -EACCES;
701		i -= 4;
702		p += 8;
703	}
704	return 0;
705}
706
707static int loadfirmware(struct cmdif *cif, const unsigned char *img,
708			unsigned int size)
709{
710	const unsigned char *in;
711	u32 laddr, saddr, t, val;
712	int err = 0;
713
714	laddr = saddr = 0;
715	while (size > 0 && err == 0) {
716		in = img;
717		if (in[0] == ':') {
718			t = atoh(&in[7], 2);
719			switch (t) {
720			case DATA_REC:
721				err = senddata(cif, in, laddr + saddr);
722				break;
723			case EXT_SEG_ADDR_REC:
724				saddr = atoh(&in[9], 4) << 4;
725				break;
726			case EXT_LIN_ADDR_REC:
727				laddr = atoh(&in[9], 4) << 16;
728				break;
729			case EXT_GOTO_CMD_REC:
730				val = atoh(&in[9], 8);
731				if (SEND_GOTO(cif, val) != 0)
732					err = -EACCES;
733				break;
734			case EXT_END_OF_FILE:
735				size = 0;
736				break;
737			default:
738				break;
739			}
740			while (size > 0) {
741				size--;
742				if (*img++ == '\n')
743					break;
744			}
745		}
746	}
747	snd_printdd("load firmware return %d\n", err);
748	return err;
749}
750
751static void
752alloclbuspath(struct cmdif *cif, unsigned char source,
753	      unsigned char *path, unsigned char *mixer, unsigned char *s)
754{
755	while (*path != 0xff) {
756		unsigned char sink, type;
757
758		sink = *path & (~SPLIT_PATH);
759		if (sink != E2SINK_MAX) {
760			snd_printdd("alloc path 0x%x->0x%x\n", source, sink);
761			SEND_PSEL(cif, source, sink);
762			source = lbusin2out[sink][0];
763			type = lbusin2out[sink][1];
764			if (type == LS_MIXER_IN) {
765				if (mixer)
766					*mixer = sink - DIGITAL_MIXER_IN0;
767			}
768			if (type == LS_SRC_DECIMATORM ||
769			    type == LS_SRC_DECIMATOR ||
770			    type == LS_SRC_INTERPOLATORM ||
771			    type == LS_SRC_INTERPOLATOR) {
772				if (s) {
773					if (s[0] != 0xff)
774						s[1] = sink;
775					else
776						s[0] = sink;
777				}
778			}
779		}
780		if (*path++ & SPLIT_PATH) {
781			unsigned char *npath = path;
782
783			while (*npath != 0xff)
784				npath++;
785			alloclbuspath(cif, source + 1, ++npath, mixer, s);
786		}
787	}
788}
789
790static void
791freelbuspath(struct cmdif *cif, unsigned char source, unsigned char *path)
792{
793	while (*path != 0xff) {
794		unsigned char sink;
795
796		sink = *path & (~SPLIT_PATH);
797		if (sink != E2SINK_MAX) {
798			snd_printdd("free path 0x%x->0x%x\n", source, sink);
799			SEND_PCLR(cif, source, sink);
800			source = lbusin2out[sink][0];
801		}
802		if (*path++ & SPLIT_PATH) {
803			unsigned char *npath = path;
804
805			while (*npath != 0xff)
806				npath++;
807			freelbuspath(cif, source + 1, ++npath);
808		}
809	}
810}
811
812static int writearm(struct cmdif *cif, u32 addr, u32 data, u32 mask)
813{
814	union cmdret rptr = CMDRET_ZERO;
815	unsigned int i = MAX_WRITE_RETRY;
816	int flag = 1;
817
818	SEND_RMEM(cif, 0x02, addr, &rptr);
819	rptr.retlongs[0] &= (~mask);
820
821	while (--i) {
822		SEND_SMEM(cif, 0x01, addr);
823		SEND_WMEM(cif, 0x02, (rptr.retlongs[0] | data));
824		SEND_RMEM(cif, 0x02, addr, &rptr);
825		if ((rptr.retlongs[0] & data) == data) {
826			flag = 0;
827			break;
828		} else
829			rptr.retlongs[0] &= ~mask;
830	}
831	snd_printdd("send arm 0x%x 0x%x 0x%x return %d\n", addr, data, mask,
832		    flag);
833	return flag;
834}
835
836static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
837		   union cmdret *ret)
838{
839	int i, j;
840	int err;
841	unsigned int time = 0;
842	unsigned long irqflags;
843	struct riptideport *hwport;
844	struct cmdport *cmdport = NULL;
845
846	if (snd_BUG_ON(!cif))
847		return -EINVAL;
848
849	hwport = cif->hwport;
850	if (cif->errcnt > MAX_ERROR_COUNT) {
851		if (cif->is_reset) {
852			snd_printk(KERN_ERR
853				   "Riptide: Too many failed cmds, reinitializing\n");
854			if (riptide_reset(cif, NULL) == 0) {
855				cif->errcnt = 0;
856				return -EIO;
857			}
858		}
859		snd_printk(KERN_ERR "Riptide: Initialization failed.\n");
860		return -EINVAL;
861	}
862	if (ret) {
863		ret->retlongs[0] = 0;
864		ret->retlongs[1] = 0;
865	}
866	i = 0;
867	spin_lock_irqsave(&cif->lock, irqflags);
868	while (i++ < CMDIF_TIMEOUT && !IS_READY(cif->hwport))
869		udelay(10);
870	if (i > CMDIF_TIMEOUT) {
871		err = -EBUSY;
872		goto errout;
873	}
874
875	err = 0;
876	for (j = 0, time = 0; time < CMDIF_TIMEOUT; j++, time += 2) {
877		cmdport = &(hwport->port[j % 2]);
878		if (IS_DATF(cmdport)) {	/* free pending data */
879			READ_PORT_ULONG(cmdport->data1);
880			READ_PORT_ULONG(cmdport->data2);
881		}
882		if (IS_CMDE(cmdport)) {
883			if (flags & PARM)	/* put data */
884				WRITE_PORT_ULONG(cmdport->data2, parm);
885			WRITE_PORT_ULONG(cmdport->data1, cmd);	/* write cmd */
886			if ((flags & RESP) && ret) {
887				while (!IS_DATF(cmdport) &&
888				       time < CMDIF_TIMEOUT) {
889					udelay(10);
890					time++;
891				}
892				if (time < CMDIF_TIMEOUT) {	/* read response */
893					ret->retlongs[0] =
894					    READ_PORT_ULONG(cmdport->data1);
895					ret->retlongs[1] =
896					    READ_PORT_ULONG(cmdport->data2);
897				} else {
898					err = -ENOSYS;
899					goto errout;
900				}
901			}
902			break;
903		}
904		udelay(20);
905	}
906	if (time == CMDIF_TIMEOUT) {
907		err = -ENODATA;
908		goto errout;
909	}
910	spin_unlock_irqrestore(&cif->lock, irqflags);
911
912	cif->cmdcnt++;		/* update command statistics */
913	cif->cmdtime += time;
914	if (time > cif->cmdtimemax)
915		cif->cmdtimemax = time;
916	if (time < cif->cmdtimemin)
917		cif->cmdtimemin = time;
918	if ((cif->cmdcnt) % 1000 == 0)
919		snd_printdd
920		    ("send cmd %d time: %d mintime: %d maxtime %d err: %d\n",
921		     cif->cmdcnt, cif->cmdtime, cif->cmdtimemin,
922		     cif->cmdtimemax, cif->errcnt);
923	return 0;
924
925      errout:
926	cif->errcnt++;
927	spin_unlock_irqrestore(&cif->lock, irqflags);
928	snd_printdd
929	    ("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",
930	     cif->cmdcnt, (int)((void *)&(cmdport->stat) - (void *)hwport),
931	     flags, cmd, parm, ret ? ret->retlongs[0] : 0,
932	     ret ? ret->retlongs[1] : 0, IS_CMDE(cmdport), IS_DATF(cmdport),
933	     err);
934	return err;
935}
936
937static int
938setmixer(struct cmdif *cif, short num, unsigned short rval, unsigned short lval)
939{
940	union cmdret rptr = CMDRET_ZERO;
941	int i = 0;
942
943	snd_printdd("sent mixer %d: 0x%d 0x%d\n", num, rval, lval);
944	do {
945		SEND_SDGV(cif, num, num, rval, lval);
946		SEND_RDGV(cif, num, num, &rptr);
947		if (rptr.retwords[0] == lval && rptr.retwords[1] == rval)
948			return 0;
949	} while (i++ < MAX_WRITE_RETRY);
950	snd_printdd("sent mixer failed\n");
951	return -EIO;
952}
953
954static int getpaths(struct cmdif *cif, unsigned char *o)
955{
956	unsigned char src[E2SINK_MAX];
957	unsigned char sink[E2SINK_MAX];
958	int i, j = 0;
959
960	for (i = 0; i < E2SINK_MAX; i++) {
961		getsourcesink(cif, i, i, &src[i], &sink[i]);
962		if (sink[i] < E2SINK_MAX) {
963			o[j++] = sink[i];
964			o[j++] = i;
965		}
966	}
967	return j;
968}
969
970static int
971getsourcesink(struct cmdif *cif, unsigned char source, unsigned char sink,
972	      unsigned char *a, unsigned char *b)
973{
974	union cmdret rptr = CMDRET_ZERO;
975
976	if (SEND_RSSV(cif, source, sink, &rptr) &&
977	    SEND_RSSV(cif, source, sink, &rptr))
978		return -EIO;
979	*a = rptr.retbytes[0];
980	*b = rptr.retbytes[1];
981	snd_printdd("getsourcesink 0x%x 0x%x\n", *a, *b);
982	return 0;
983}
984
985static int
986getsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int *rate)
987{
988	unsigned char *s;
989	unsigned int p[2] = { 0, 0 };
990	int i;
991	union cmdret rptr = CMDRET_ZERO;
992
993	s = intdec;
994	for (i = 0; i < 2; i++) {
995		if (*s != 0xff) {
996			if (SEND_RSRC(cif, *s, &rptr) &&
997			    SEND_RSRC(cif, *s, &rptr))
998				return -EIO;
999			p[i] += rptr.retwords[1];
1000			p[i] *= rptr.retwords[2];
1001			p[i] += rptr.retwords[3];
1002			p[i] /= 65536;
1003		}
1004		s++;
1005	}
1006	if (p[0]) {
1007		if (p[1] != p[0])
1008			snd_printdd("rates differ %d %d\n", p[0], p[1]);
1009		*rate = (unsigned int)p[0];
1010	} else
1011		*rate = (unsigned int)p[1];
1012	snd_printdd("getsampleformat %d %d %d\n", intdec[0], intdec[1], *rate);
1013	return 0;
1014}
1015
1016static int
1017setsampleformat(struct cmdif *cif,
1018		unsigned char mixer, unsigned char id,
1019		unsigned char channels, unsigned char format)
1020{
1021	unsigned char w, ch, sig, order;
1022
1023	snd_printdd
1024	    ("setsampleformat mixer: %d id: %d channels: %d format: %d\n",
1025	     mixer, id, channels, format);
1026	ch = channels == 1;
1027	w = snd_pcm_format_width(format) == 8;
1028	sig = snd_pcm_format_unsigned(format) != 0;
1029	order = snd_pcm_format_big_endian(format) != 0;
1030
1031	if (SEND_SETF(cif, mixer, w, ch, order, sig, id) &&
1032	    SEND_SETF(cif, mixer, w, ch, order, sig, id)) {
1033		snd_printdd("setsampleformat failed\n");
1034		return -EIO;
1035	}
1036	return 0;
1037}
1038
1039static int
1040setsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int rate)
1041{
1042	u32 D, M, N;
1043	union cmdret rptr = CMDRET_ZERO;
1044	int i;
1045
1046	snd_printdd("setsamplerate intdec: %d,%d rate: %d\n", intdec[0],
1047		    intdec[1], rate);
1048	D = 48000;
1049	M = ((rate == 48000) ? 47999 : rate) * 65536;
1050	N = M % D;
1051	M /= D;
1052	for (i = 0; i < 2; i++) {
1053		if (*intdec != 0xff) {
1054			do {
1055				SEND_SSRC(cif, *intdec, D, M, N);
1056				SEND_RSRC(cif, *intdec, &rptr);
1057			} while (rptr.retwords[1] != D &&
1058				 rptr.retwords[2] != M &&
1059				 rptr.retwords[3] != N &&
1060				 i++ < MAX_WRITE_RETRY);
1061			if (i > MAX_WRITE_RETRY) {
1062				snd_printdd("sent samplerate %d: %d failed\n",
1063					    *intdec, rate);
1064				return -EIO;
1065			}
1066		}
1067		intdec++;
1068	}
1069	return 0;
1070}
1071
1072static int
1073getmixer(struct cmdif *cif, short num, unsigned short *rval,
1074	 unsigned short *lval)
1075{
1076	union cmdret rptr = CMDRET_ZERO;
1077
1078	if (SEND_RDGV(cif, num, num, &rptr) && SEND_RDGV(cif, num, num, &rptr))
1079		return -EIO;
1080	*rval = rptr.retwords[0];
1081	*lval = rptr.retwords[1];
1082	snd_printdd("got mixer %d: 0x%d 0x%d\n", num, *rval, *lval);
1083	return 0;
1084}
1085
1086static void riptide_handleirq(unsigned long dev_id)
1087{
1088	struct snd_riptide *chip = (void *)dev_id;
1089	struct cmdif *cif = chip->cif;
1090	struct snd_pcm_substream *substream[PLAYBACK_SUBSTREAMS + 1];
1091	struct snd_pcm_runtime *runtime;
1092	struct pcmhw *data = NULL;
1093	unsigned int pos, period_bytes;
1094	struct sgd *c;
1095	int i, j;
1096	unsigned int flag;
1097
1098	if (!cif)
1099		return;
1100
1101	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++)
1102		substream[i] = chip->playback_substream[i];
1103	substream[i] = chip->capture_substream;
1104	for (i = 0; i < PLAYBACK_SUBSTREAMS + 1; i++) {
1105		if (substream[i] &&
1106		    (runtime = substream[i]->runtime) &&
1107		    (data = runtime->private_data) && data->state != ST_STOP) {
1108			pos = 0;
1109			for (j = 0; j < data->pages; j++) {
1110				c = &data->sgdbuf[j];
1111				flag = le32_to_cpu(c->dwStat_Ctl);
1112				if (flag & EOB_STATUS)
1113					pos += le32_to_cpu(c->dwSegLen);
1114				if (flag & EOC_STATUS)
1115					pos += le32_to_cpu(c->dwSegLen);
1116				if ((flag & EOS_STATUS)
1117				    && (data->state == ST_PLAY)) {
1118					data->state = ST_STOP;
1119					snd_printk(KERN_ERR
1120						   "Riptide: DMA stopped unexpectedly\n");
1121				}
1122				c->dwStat_Ctl =
1123				    cpu_to_le32(flag &
1124						~(EOS_STATUS | EOB_STATUS |
1125						  EOC_STATUS));
1126			}
1127			data->pointer += pos;
1128			pos += data->oldpos;
1129			if (data->state != ST_STOP) {
1130				period_bytes =
1131				    frames_to_bytes(runtime,
1132						    runtime->period_size);
1133				snd_printdd
1134				    ("interrupt 0x%x after 0x%lx of 0x%lx frames in period\n",
1135				     READ_AUDIO_STATUS(cif->hwport),
1136				     bytes_to_frames(runtime, pos),
1137				     runtime->period_size);
1138				j = 0;
1139				if (pos >= period_bytes) {
1140					j++;
1141					while (pos >= period_bytes)
1142						pos -= period_bytes;
1143				}
1144				data->oldpos = pos;
1145				if (j > 0)
1146					snd_pcm_period_elapsed(substream[i]);
1147			}
1148		}
1149	}
1150}
1151
1152#ifdef CONFIG_PM
1153static int riptide_suspend(struct pci_dev *pci, pm_message_t state)
1154{
1155	struct snd_card *card = pci_get_drvdata(pci);
1156	struct snd_riptide *chip = card->private_data;
1157
1158	chip->in_suspend = 1;
1159	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1160	snd_pcm_suspend_all(chip->pcm);
1161	snd_ac97_suspend(chip->ac97);
1162	pci_disable_device(pci);
1163	pci_save_state(pci);
1164	pci_set_power_state(pci, pci_choose_state(pci, state));
1165	return 0;
1166}
1167
1168static int riptide_resume(struct pci_dev *pci)
1169{
1170	struct snd_card *card = pci_get_drvdata(pci);
1171	struct snd_riptide *chip = card->private_data;
1172
1173	pci_set_power_state(pci, PCI_D0);
1174	pci_restore_state(pci);
1175	if (pci_enable_device(pci) < 0) {
1176		printk(KERN_ERR "riptide: pci_enable_device failed, "
1177		       "disabling device\n");
1178		snd_card_disconnect(card);
1179		return -EIO;
1180	}
1181	pci_set_master(pci);
1182	snd_riptide_initialize(chip);
1183	snd_ac97_resume(chip->ac97);
1184	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1185	chip->in_suspend = 0;
1186	return 0;
1187}
1188#endif
1189
1190static int try_to_load_firmware(struct cmdif *cif, struct snd_riptide *chip)
1191{
1192	union firmware_version firmware = { .ret = CMDRET_ZERO };
1193	int i, timeout, err;
1194
1195	for (i = 0; i < 2; i++) {
1196		WRITE_PORT_ULONG(cif->hwport->port[i].data1, 0);
1197		WRITE_PORT_ULONG(cif->hwport->port[i].data2, 0);
1198	}
1199	SET_GRESET(cif->hwport);
1200	udelay(100);
1201	UNSET_GRESET(cif->hwport);
1202	udelay(100);
1203
1204	for (timeout = 100000; --timeout; udelay(10)) {
1205		if (IS_READY(cif->hwport) && !IS_GERR(cif->hwport))
1206			break;
1207	}
1208	if (!timeout) {
1209		snd_printk(KERN_ERR
1210			   "Riptide: device not ready, audio status: 0x%x "
1211			   "ready: %d gerr: %d\n",
1212			   READ_AUDIO_STATUS(cif->hwport),
1213			   IS_READY(cif->hwport), IS_GERR(cif->hwport));
1214		return -EIO;
1215	} else {
1216		snd_printdd
1217			("Riptide: audio status: 0x%x ready: %d gerr: %d\n",
1218			 READ_AUDIO_STATUS(cif->hwport),
1219			 IS_READY(cif->hwport), IS_GERR(cif->hwport));
1220	}
1221
1222	SEND_GETV(cif, &firmware.ret);
1223	snd_printdd("Firmware version: ASIC: %d CODEC %d AUXDSP %d PROG %d\n",
1224		    firmware.firmware.ASIC, firmware.firmware.CODEC,
1225		    firmware.firmware.AUXDSP, firmware.firmware.PROG);
1226
1227	if (!chip)
1228		return 1;
1229
1230	for (i = 0; i < FIRMWARE_VERSIONS; i++) {
1231		if (!memcmp(&firmware_versions[i], &firmware, sizeof(firmware)))
1232			return 1; /* OK */
1233
1234	}
1235
1236	snd_printdd("Writing Firmware\n");
1237	if (!chip->fw_entry) {
1238		err = request_firmware(&chip->fw_entry, "riptide.hex",
1239				       &chip->pci->dev);
1240		if (err) {
1241			snd_printk(KERN_ERR
1242				   "Riptide: Firmware not available %d\n", err);
1243			return -EIO;
1244		}
1245	}
1246	err = loadfirmware(cif, chip->fw_entry->data, chip->fw_entry->size);
1247	if (err) {
1248		snd_printk(KERN_ERR
1249			   "Riptide: Could not load firmware %d\n", err);
1250		return err;
1251	}
1252
1253	chip->firmware = firmware;
1254
1255	return 1; /* OK */
1256}
1257
1258static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip)
1259{
1260	union cmdret rptr = CMDRET_ZERO;
1261	int err, tries;
1262
1263	if (!cif)
1264		return -EINVAL;
1265
1266	cif->cmdcnt = 0;
1267	cif->cmdtime = 0;
1268	cif->cmdtimemax = 0;
1269	cif->cmdtimemin = 0xffffffff;
1270	cif->errcnt = 0;
1271	cif->is_reset = 0;
1272
1273	tries = RESET_TRIES;
1274	do {
1275		err = try_to_load_firmware(cif, chip);
1276		if (err < 0)
1277			return err;
1278	} while (!err && --tries);
1279
1280	SEND_SACR(cif, 0, AC97_RESET);
1281	SEND_RACR(cif, AC97_RESET, &rptr);
1282	snd_printdd("AC97: 0x%x 0x%x\n", rptr.retlongs[0], rptr.retlongs[1]);
1283
1284	SEND_PLST(cif, 0);
1285	SEND_SLST(cif, 0);
1286	SEND_DLST(cif, 0);
1287	SEND_ALST(cif, 0);
1288	SEND_KDMA(cif);
1289
1290	writearm(cif, 0x301F8, 1, 1);
1291	writearm(cif, 0x301F4, 1, 1);
1292
1293	SEND_LSEL(cif, MODEM_CMD, 0, 0, MODEM_INTDEC, MODEM_MERGER,
1294		  MODEM_SPLITTER, MODEM_MIXER);
1295	setmixer(cif, MODEM_MIXER, 0x7fff, 0x7fff);
1296	alloclbuspath(cif, ARM2LBUS_FIFO13, lbus_play_modem, NULL, NULL);
1297
1298	SEND_LSEL(cif, FM_CMD, 0, 0, FM_INTDEC, FM_MERGER, FM_SPLITTER,
1299		  FM_MIXER);
1300	setmixer(cif, FM_MIXER, 0x7fff, 0x7fff);
1301	writearm(cif, 0x30648 + FM_MIXER * 4, 0x01, 0x00000005);
1302	writearm(cif, 0x301A8, 0x02, 0x00000002);
1303	writearm(cif, 0x30264, 0x08, 0xffffffff);
1304	alloclbuspath(cif, OPL3_SAMPLE, lbus_play_opl3, NULL, NULL);
1305
1306	SEND_SSRC(cif, I2S_INTDEC, 48000,
1307		  ((u32) I2S_RATE * 65536) / 48000,
1308		  ((u32) I2S_RATE * 65536) % 48000);
1309	SEND_LSEL(cif, I2S_CMD0, 0, 0, I2S_INTDEC, I2S_MERGER, I2S_SPLITTER,
1310		  I2S_MIXER);
1311	SEND_SI2S(cif, 1);
1312	alloclbuspath(cif, ARM2LBUS_FIFO0, lbus_play_i2s, NULL, NULL);
1313	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_out, NULL, NULL);
1314	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_outhp, NULL, NULL);
1315
1316	SET_AIACK(cif->hwport);
1317	SET_AIE(cif->hwport);
1318	SET_AIACK(cif->hwport);
1319	cif->is_reset = 1;
1320
1321	return 0;
1322}
1323
1324static struct snd_pcm_hardware snd_riptide_playback = {
1325	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1326		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1327		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1328	.formats =
1329	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1330	    | SNDRV_PCM_FMTBIT_U16_LE,
1331	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1332	.rate_min = 5500,
1333	.rate_max = 48000,
1334	.channels_min = 1,
1335	.channels_max = 2,
1336	.buffer_bytes_max = (64 * 1024),
1337	.period_bytes_min = PAGE_SIZE >> 1,
1338	.period_bytes_max = PAGE_SIZE << 8,
1339	.periods_min = 2,
1340	.periods_max = 64,
1341	.fifo_size = 0,
1342};
1343static struct snd_pcm_hardware snd_riptide_capture = {
1344	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1345		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1346		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1347	.formats =
1348	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1349	    | SNDRV_PCM_FMTBIT_U16_LE,
1350	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1351	.rate_min = 5500,
1352	.rate_max = 48000,
1353	.channels_min = 1,
1354	.channels_max = 2,
1355	.buffer_bytes_max = (64 * 1024),
1356	.period_bytes_min = PAGE_SIZE >> 1,
1357	.period_bytes_max = PAGE_SIZE << 3,
1358	.periods_min = 2,
1359	.periods_max = 64,
1360	.fifo_size = 0,
1361};
1362
1363static snd_pcm_uframes_t snd_riptide_pointer(struct snd_pcm_substream
1364					     *substream)
1365{
1366	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1367	struct snd_pcm_runtime *runtime = substream->runtime;
1368	struct pcmhw *data = get_pcmhwdev(substream);
1369	struct cmdif *cif = chip->cif;
1370	union cmdret rptr = CMDRET_ZERO;
1371	snd_pcm_uframes_t ret;
1372
1373	SEND_GPOS(cif, 0, data->id, &rptr);
1374	if (data->size && runtime->period_size) {
1375		snd_printdd
1376		    ("pointer stream %d position 0x%x(0x%x in buffer) bytes 0x%lx(0x%lx in period) frames\n",
1377		     data->id, rptr.retlongs[1], rptr.retlongs[1] % data->size,
1378		     bytes_to_frames(runtime, rptr.retlongs[1]),
1379		     bytes_to_frames(runtime,
1380				     rptr.retlongs[1]) % runtime->period_size);
1381		if (rptr.retlongs[1] > data->pointer)
1382			ret =
1383			    bytes_to_frames(runtime,
1384					    rptr.retlongs[1] % data->size);
1385		else
1386			ret =
1387			    bytes_to_frames(runtime,
1388					    data->pointer % data->size);
1389	} else {
1390		snd_printdd("stream not started or strange parms (%d %ld)\n",
1391			    data->size, runtime->period_size);
1392		ret = bytes_to_frames(runtime, 0);
1393	}
1394	return ret;
1395}
1396
1397static int snd_riptide_trigger(struct snd_pcm_substream *substream, int cmd)
1398{
1399	int i, j;
1400	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1401	struct pcmhw *data = get_pcmhwdev(substream);
1402	struct cmdif *cif = chip->cif;
1403	union cmdret rptr = CMDRET_ZERO;
1404
1405	spin_lock(&chip->lock);
1406	switch (cmd) {
1407	case SNDRV_PCM_TRIGGER_START:
1408	case SNDRV_PCM_TRIGGER_RESUME:
1409		if (!(data->state & ST_PLAY)) {
1410			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1411			SET_AIE(cif->hwport);
1412			data->state = ST_PLAY;
1413			if (data->mixer != 0xff)
1414				setmixer(cif, data->mixer, 0x7fff, 0x7fff);
1415			chip->openstreams++;
1416			data->oldpos = 0;
1417			data->pointer = 0;
1418		}
1419		break;
1420	case SNDRV_PCM_TRIGGER_STOP:
1421	case SNDRV_PCM_TRIGGER_SUSPEND:
1422		if (data->mixer != 0xff)
1423			setmixer(cif, data->mixer, 0, 0);
1424		setmixer(cif, data->mixer, 0, 0);
1425		SEND_KSTR(cif, data->id);
1426		data->state = ST_STOP;
1427		chip->openstreams--;
1428		j = 0;
1429		do {
1430			i = rptr.retlongs[1];
1431			SEND_GPOS(cif, 0, data->id, &rptr);
1432			udelay(1);
1433		} while (i != rptr.retlongs[1] && j++ < MAX_WRITE_RETRY);
1434		if (j > MAX_WRITE_RETRY)
1435			snd_printk(KERN_ERR "Riptide: Could not stop stream!");
1436		break;
1437	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1438		if (!(data->state & ST_PAUSE)) {
1439			SEND_PSTR(cif, data->id);
1440			data->state |= ST_PAUSE;
1441			chip->openstreams--;
1442		}
1443		break;
1444	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1445		if (data->state & ST_PAUSE) {
1446			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1447			data->state &= ~ST_PAUSE;
1448			chip->openstreams++;
1449		}
1450		break;
1451	default:
1452		spin_unlock(&chip->lock);
1453		return -EINVAL;
1454	}
1455	spin_unlock(&chip->lock);
1456	return 0;
1457}
1458
1459static int snd_riptide_prepare(struct snd_pcm_substream *substream)
1460{
1461	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1462	struct snd_pcm_runtime *runtime = substream->runtime;
1463	struct pcmhw *data = get_pcmhwdev(substream);
1464	struct cmdif *cif = chip->cif;
1465	unsigned char *lbuspath = NULL;
1466	unsigned int rate, channels;
1467	int err = 0;
1468	snd_pcm_format_t format;
1469
1470	if (snd_BUG_ON(!cif || !data))
1471		return -EINVAL;
1472
1473	snd_printdd("prepare id %d ch: %d f:0x%x r:%d\n", data->id,
1474		    runtime->channels, runtime->format, runtime->rate);
1475
1476	spin_lock_irq(&chip->lock);
1477	channels = runtime->channels;
1478	format = runtime->format;
1479	rate = runtime->rate;
1480	switch (channels) {
1481	case 1:
1482		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1483			lbuspath = data->paths.noconv;
1484		else
1485			lbuspath = data->paths.mono;
1486		break;
1487	case 2:
1488		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1489			lbuspath = data->paths.noconv;
1490		else
1491			lbuspath = data->paths.stereo;
1492		break;
1493	}
1494	snd_printdd("use sgdlist at 0x%p\n",
1495		    data->sgdlist.area);
1496	if (data->sgdlist.area) {
1497		unsigned int i, j, size, pages, f, pt, period;
1498		struct sgd *c, *p = NULL;
1499
1500		size = frames_to_bytes(runtime, runtime->buffer_size);
1501		period = frames_to_bytes(runtime, runtime->period_size);
1502		f = PAGE_SIZE;
1503		while ((size + (f >> 1) - 1) <= (f << 7) && (f << 1) > period)
1504			f = f >> 1;
1505		pages = (size + f - 1) / f;
1506		data->size = size;
1507		data->pages = pages;
1508		snd_printdd
1509		    ("create sgd size: 0x%x pages %d of size 0x%x for period 0x%x\n",
1510		     size, pages, f, period);
1511		pt = 0;
1512		j = 0;
1513		for (i = 0; i < pages; i++) {
1514			unsigned int ofs, addr;
1515			c = &data->sgdbuf[i];
1516			if (p)
1517				p->dwNextLink = cpu_to_le32(data->sgdlist.addr +
1518							    (i *
1519							     sizeof(struct
1520								    sgd)));
1521			c->dwNextLink = cpu_to_le32(data->sgdlist.addr);
1522			ofs = j << PAGE_SHIFT;
1523			addr = snd_pcm_sgbuf_get_addr(substream, ofs) + pt;
1524			c->dwSegPtrPhys = cpu_to_le32(addr);
1525			pt = (pt + f) % PAGE_SIZE;
1526			if (pt == 0)
1527				j++;
1528			c->dwSegLen = cpu_to_le32(f);
1529			c->dwStat_Ctl =
1530			    cpu_to_le32(IEOB_ENABLE | IEOS_ENABLE |
1531					IEOC_ENABLE);
1532			p = c;
1533			size -= f;
1534		}
1535		data->sgdbuf[i].dwSegLen = cpu_to_le32(size);
1536	}
1537	if (lbuspath && lbuspath != data->lbuspath) {
1538		if (data->lbuspath)
1539			freelbuspath(cif, data->source, data->lbuspath);
1540		alloclbuspath(cif, data->source, lbuspath,
1541			      &data->mixer, data->intdec);
1542		data->lbuspath = lbuspath;
1543		data->rate = 0;
1544	}
1545	if (data->rate != rate || data->format != format ||
1546	    data->channels != channels) {
1547		data->rate = rate;
1548		data->format = format;
1549		data->channels = channels;
1550		if (setsampleformat
1551		    (cif, data->mixer, data->id, channels, format)
1552		    || setsamplerate(cif, data->intdec, rate))
1553			err = -EIO;
1554	}
1555	spin_unlock_irq(&chip->lock);
1556	return err;
1557}
1558
1559static int
1560snd_riptide_hw_params(struct snd_pcm_substream *substream,
1561		      struct snd_pcm_hw_params *hw_params)
1562{
1563	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1564	struct pcmhw *data = get_pcmhwdev(substream);
1565	struct snd_dma_buffer *sgdlist = &data->sgdlist;
1566	int err;
1567
1568	snd_printdd("hw params id %d (sgdlist: 0x%p 0x%lx %d)\n", data->id,
1569		    sgdlist->area, (unsigned long)sgdlist->addr,
1570		    (int)sgdlist->bytes);
1571	if (sgdlist->area)
1572		snd_dma_free_pages(sgdlist);
1573	if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
1574				       snd_dma_pci_data(chip->pci),
1575				       sizeof(struct sgd) * (DESC_MAX_MASK + 1),
1576				       sgdlist)) < 0) {
1577		snd_printk(KERN_ERR "Riptide: failed to alloc %d dma bytes\n",
1578			   (int)sizeof(struct sgd) * (DESC_MAX_MASK + 1));
1579		return err;
1580	}
1581	data->sgdbuf = (struct sgd *)sgdlist->area;
1582	return snd_pcm_lib_malloc_pages(substream,
1583					params_buffer_bytes(hw_params));
1584}
1585
1586static int snd_riptide_hw_free(struct snd_pcm_substream *substream)
1587{
1588	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1589	struct pcmhw *data = get_pcmhwdev(substream);
1590	struct cmdif *cif = chip->cif;
1591
1592	if (cif && data) {
1593		if (data->lbuspath)
1594			freelbuspath(cif, data->source, data->lbuspath);
1595		data->lbuspath = NULL;
1596		data->source = 0xff;
1597		data->intdec[0] = 0xff;
1598		data->intdec[1] = 0xff;
1599
1600		if (data->sgdlist.area) {
1601			snd_dma_free_pages(&data->sgdlist);
1602			data->sgdlist.area = NULL;
1603		}
1604	}
1605	return snd_pcm_lib_free_pages(substream);
1606}
1607
1608static int snd_riptide_playback_open(struct snd_pcm_substream *substream)
1609{
1610	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1611	struct snd_pcm_runtime *runtime = substream->runtime;
1612	struct pcmhw *data;
1613	int sub_num = substream->number;
1614
1615	chip->playback_substream[sub_num] = substream;
1616	runtime->hw = snd_riptide_playback;
1617
1618	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
1619	if (data == NULL)
1620		return -ENOMEM;
1621	data->paths = lbus_play_paths[sub_num];
1622	data->id = play_ids[sub_num];
1623	data->source = play_sources[sub_num];
1624	data->intdec[0] = 0xff;
1625	data->intdec[1] = 0xff;
1626	data->state = ST_STOP;
1627	runtime->private_data = data;
1628	return snd_pcm_hw_constraint_integer(runtime,
1629					     SNDRV_PCM_HW_PARAM_PERIODS);
1630}
1631
1632static int snd_riptide_capture_open(struct snd_pcm_substream *substream)
1633{
1634	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1635	struct snd_pcm_runtime *runtime = substream->runtime;
1636	struct pcmhw *data;
1637
1638	chip->capture_substream = substream;
1639	runtime->hw = snd_riptide_capture;
1640
1641	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
1642	if (data == NULL)
1643		return -ENOMEM;
1644	data->paths = lbus_rec_path;
1645	data->id = PADC;
1646	data->source = ACLNK2PADC;
1647	data->intdec[0] = 0xff;
1648	data->intdec[1] = 0xff;
1649	data->state = ST_STOP;
1650	runtime->private_data = data;
1651	return snd_pcm_hw_constraint_integer(runtime,
1652					     SNDRV_PCM_HW_PARAM_PERIODS);
1653}
1654
1655static int snd_riptide_playback_close(struct snd_pcm_substream *substream)
1656{
1657	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1658	struct pcmhw *data = get_pcmhwdev(substream);
1659	int sub_num = substream->number;
1660
1661	substream->runtime->private_data = NULL;
1662	chip->playback_substream[sub_num] = NULL;
1663	kfree(data);
1664	return 0;
1665}
1666
1667static int snd_riptide_capture_close(struct snd_pcm_substream *substream)
1668{
1669	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1670	struct pcmhw *data = get_pcmhwdev(substream);
1671
1672	substream->runtime->private_data = NULL;
1673	chip->capture_substream = NULL;
1674	kfree(data);
1675	return 0;
1676}
1677
1678static struct snd_pcm_ops snd_riptide_playback_ops = {
1679	.open = snd_riptide_playback_open,
1680	.close = snd_riptide_playback_close,
1681	.ioctl = snd_pcm_lib_ioctl,
1682	.hw_params = snd_riptide_hw_params,
1683	.hw_free = snd_riptide_hw_free,
1684	.prepare = snd_riptide_prepare,
1685	.page = snd_pcm_sgbuf_ops_page,
1686	.trigger = snd_riptide_trigger,
1687	.pointer = snd_riptide_pointer,
1688};
1689static struct snd_pcm_ops snd_riptide_capture_ops = {
1690	.open = snd_riptide_capture_open,
1691	.close = snd_riptide_capture_close,
1692	.ioctl = snd_pcm_lib_ioctl,
1693	.hw_params = snd_riptide_hw_params,
1694	.hw_free = snd_riptide_hw_free,
1695	.prepare = snd_riptide_prepare,
1696	.page = snd_pcm_sgbuf_ops_page,
1697	.trigger = snd_riptide_trigger,
1698	.pointer = snd_riptide_pointer,
1699};
1700
1701static int __devinit
1702snd_riptide_pcm(struct snd_riptide *chip, int device, struct snd_pcm **rpcm)
1703{
1704	struct snd_pcm *pcm;
1705	int err;
1706
1707	if (rpcm)
1708		*rpcm = NULL;
1709	if ((err =
1710	     snd_pcm_new(chip->card, "RIPTIDE", device, PLAYBACK_SUBSTREAMS, 1,
1711			 &pcm)) < 0)
1712		return err;
1713	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1714			&snd_riptide_playback_ops);
1715	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1716			&snd_riptide_capture_ops);
1717	pcm->private_data = chip;
1718	pcm->info_flags = 0;
1719	strcpy(pcm->name, "RIPTIDE");
1720	chip->pcm = pcm;
1721	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1722					      snd_dma_pci_data(chip->pci),
1723					      64 * 1024, 128 * 1024);
1724	if (rpcm)
1725		*rpcm = pcm;
1726	return 0;
1727}
1728
1729static irqreturn_t
1730snd_riptide_interrupt(int irq, void *dev_id)
1731{
1732	struct snd_riptide *chip = dev_id;
1733	struct cmdif *cif = chip->cif;
1734
1735	if (cif) {
1736		chip->received_irqs++;
1737		if (IS_EOBIRQ(cif->hwport) || IS_EOSIRQ(cif->hwport) ||
1738		    IS_EOCIRQ(cif->hwport)) {
1739			chip->handled_irqs++;
1740			tasklet_schedule(&chip->riptide_tq);
1741		}
1742		if (chip->rmidi && IS_MPUIRQ(cif->hwport)) {
1743			chip->handled_irqs++;
1744			snd_mpu401_uart_interrupt(irq,
1745						  chip->rmidi->private_data);
1746		}
1747		SET_AIACK(cif->hwport);
1748	}
1749	return IRQ_HANDLED;
1750}
1751
1752static void
1753snd_riptide_codec_write(struct snd_ac97 *ac97, unsigned short reg,
1754			unsigned short val)
1755{
1756	struct snd_riptide *chip = ac97->private_data;
1757	struct cmdif *cif = chip->cif;
1758	union cmdret rptr = CMDRET_ZERO;
1759	int i = 0;
1760
1761	if (snd_BUG_ON(!cif))
1762		return;
1763
1764	snd_printdd("Write AC97 reg 0x%x 0x%x\n", reg, val);
1765	do {
1766		SEND_SACR(cif, val, reg);
1767		SEND_RACR(cif, reg, &rptr);
1768	} while (rptr.retwords[1] != val && i++ < MAX_WRITE_RETRY);
1769	if (i > MAX_WRITE_RETRY)
1770		snd_printdd("Write AC97 reg failed\n");
1771}
1772
1773static unsigned short snd_riptide_codec_read(struct snd_ac97 *ac97,
1774					     unsigned short reg)
1775{
1776	struct snd_riptide *chip = ac97->private_data;
1777	struct cmdif *cif = chip->cif;
1778	union cmdret rptr = CMDRET_ZERO;
1779
1780	if (snd_BUG_ON(!cif))
1781		return 0;
1782
1783	if (SEND_RACR(cif, reg, &rptr) != 0)
1784		SEND_RACR(cif, reg, &rptr);
1785	snd_printdd("Read AC97 reg 0x%x got 0x%x\n", reg, rptr.retwords[1]);
1786	return rptr.retwords[1];
1787}
1788
1789static int snd_riptide_initialize(struct snd_riptide *chip)
1790{
1791	struct cmdif *cif;
1792	unsigned int device_id;
1793	int err;
1794
1795	if (snd_BUG_ON(!chip))
1796		return -EINVAL;
1797
1798	cif = chip->cif;
1799	if (!cif) {
1800		if ((cif = kzalloc(sizeof(struct cmdif), GFP_KERNEL)) == NULL)
1801			return -ENOMEM;
1802		cif->hwport = (struct riptideport *)chip->port;
1803		spin_lock_init(&cif->lock);
1804		chip->cif = cif;
1805	}
1806	cif->is_reset = 0;
1807	if ((err = riptide_reset(cif, chip)) != 0)
1808		return err;
1809	device_id = chip->device_id;
1810	switch (device_id) {
1811	case 0x4310:
1812	case 0x4320:
1813	case 0x4330:
1814		snd_printdd("Modem enable?\n");
1815		SEND_SETDPLL(cif);
1816		break;
1817	}
1818	snd_printdd("Enabling MPU IRQs\n");
1819	if (chip->rmidi)
1820		SET_EMPUIRQ(cif->hwport);
1821	return err;
1822}
1823
1824static int snd_riptide_free(struct snd_riptide *chip)
1825{
1826	struct cmdif *cif;
1827
1828	if (!chip)
1829		return 0;
1830
1831	if ((cif = chip->cif)) {
1832		SET_GRESET(cif->hwport);
1833		udelay(100);
1834		UNSET_GRESET(cif->hwport);
1835		kfree(chip->cif);
1836	}
1837	if (chip->irq >= 0)
1838		free_irq(chip->irq, chip);
1839	if (chip->fw_entry)
1840		release_firmware(chip->fw_entry);
1841	release_and_free_resource(chip->res_port);
1842	kfree(chip);
1843	return 0;
1844}
1845
1846static int snd_riptide_dev_free(struct snd_device *device)
1847{
1848	struct snd_riptide *chip = device->device_data;
1849
1850	return snd_riptide_free(chip);
1851}
1852
1853static int __devinit
1854snd_riptide_create(struct snd_card *card, struct pci_dev *pci,
1855		   struct snd_riptide **rchip)
1856{
1857	struct snd_riptide *chip;
1858	struct riptideport *hwport;
1859	int err;
1860	static struct snd_device_ops ops = {
1861		.dev_free = snd_riptide_dev_free,
1862	};
1863
1864	*rchip = NULL;
1865	if ((err = pci_enable_device(pci)) < 0)
1866		return err;
1867	if (!(chip = kzalloc(sizeof(struct snd_riptide), GFP_KERNEL)))
1868		return -ENOMEM;
1869
1870	spin_lock_init(&chip->lock);
1871	chip->card = card;
1872	chip->pci = pci;
1873	chip->irq = -1;
1874	chip->openstreams = 0;
1875	chip->port = pci_resource_start(pci, 0);
1876	chip->received_irqs = 0;
1877	chip->handled_irqs = 0;
1878	chip->cif = NULL;
1879	tasklet_init(&chip->riptide_tq, riptide_handleirq, (unsigned long)chip);
1880
1881	if ((chip->res_port =
1882	     request_region(chip->port, 64, "RIPTIDE")) == NULL) {
1883		snd_printk(KERN_ERR
1884			   "Riptide: unable to grab region 0x%lx-0x%lx\n",
1885			   chip->port, chip->port + 64 - 1);
1886		snd_riptide_free(chip);
1887		return -EBUSY;
1888	}
1889	hwport = (struct riptideport *)chip->port;
1890	UNSET_AIE(hwport);
1891
1892	if (request_irq(pci->irq, snd_riptide_interrupt, IRQF_SHARED,
1893			"RIPTIDE", chip)) {
1894		snd_printk(KERN_ERR "Riptide: unable to grab IRQ %d\n",
1895			   pci->irq);
1896		snd_riptide_free(chip);
1897		return -EBUSY;
1898	}
1899	chip->irq = pci->irq;
1900	chip->device_id = pci->device;
1901	pci_set_master(pci);
1902	if ((err = snd_riptide_initialize(chip)) < 0) {
1903		snd_riptide_free(chip);
1904		return err;
1905	}
1906
1907	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1908		snd_riptide_free(chip);
1909		return err;
1910	}
1911
1912	snd_card_set_dev(card, &pci->dev);
1913
1914	*rchip = chip;
1915	return 0;
1916}
1917
1918static void
1919snd_riptide_proc_read(struct snd_info_entry *entry,
1920		      struct snd_info_buffer *buffer)
1921{
1922	struct snd_riptide *chip = entry->private_data;
1923	struct pcmhw *data;
1924	int i;
1925	struct cmdif *cif = NULL;
1926	unsigned char p[256];
1927	unsigned short rval = 0, lval = 0;
1928	unsigned int rate;
1929
1930	if (!chip)
1931		return;
1932
1933	snd_iprintf(buffer, "%s\n\n", chip->card->longname);
1934	snd_iprintf(buffer, "Device ID: 0x%x\nReceived IRQs: (%ld)%ld\nPorts:",
1935		    chip->device_id, chip->handled_irqs, chip->received_irqs);
1936	for (i = 0; i < 64; i += 4)
1937		snd_iprintf(buffer, "%c%02x: %08x",
1938			    (i % 16) ? ' ' : '\n', i, inl(chip->port + i));
1939	if ((cif = chip->cif)) {
1940		snd_iprintf(buffer,
1941			    "\nVersion: ASIC: %d CODEC: %d AUXDSP: %d PROG: %d",
1942			    chip->firmware.firmware.ASIC,
1943			    chip->firmware.firmware.CODEC,
1944			    chip->firmware.firmware.AUXDSP,
1945			    chip->firmware.firmware.PROG);
1946		snd_iprintf(buffer, "\nDigital mixer:");
1947		for (i = 0; i < 12; i++) {
1948			getmixer(cif, i, &rval, &lval);
1949			snd_iprintf(buffer, "\n %d: %d %d", i, rval, lval);
1950		}
1951		snd_iprintf(buffer,
1952			    "\nARM Commands num: %d failed: %d time: %d max: %d min: %d",
1953			    cif->cmdcnt, cif->errcnt,
1954			    cif->cmdtime, cif->cmdtimemax, cif->cmdtimemin);
1955	}
1956	snd_iprintf(buffer, "\nOpen streams %d:\n", chip->openstreams);
1957	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++) {
1958		if (chip->playback_substream[i]
1959		    && chip->playback_substream[i]->runtime
1960		    && (data =
1961			chip->playback_substream[i]->runtime->private_data)) {
1962			snd_iprintf(buffer,
1963				    "stream: %d mixer: %d source: %d (%d,%d)\n",
1964				    data->id, data->mixer, data->source,
1965				    data->intdec[0], data->intdec[1]);
1966			if (!(getsamplerate(cif, data->intdec, &rate)))
1967				snd_iprintf(buffer, "rate: %d\n", rate);
1968		}
1969	}
1970	if (chip->capture_substream
1971	    && chip->capture_substream->runtime
1972	    && (data = chip->capture_substream->runtime->private_data)) {
1973		snd_iprintf(buffer,
1974			    "stream: %d mixer: %d source: %d (%d,%d)\n",
1975			    data->id, data->mixer,
1976			    data->source, data->intdec[0], data->intdec[1]);
1977		if (!(getsamplerate(cif, data->intdec, &rate)))
1978			snd_iprintf(buffer, "rate: %d\n", rate);
1979	}
1980	snd_iprintf(buffer, "Paths:\n");
1981	i = getpaths(cif, p);
1982	while (i >= 2) {
1983		i -= 2;
1984		snd_iprintf(buffer, "%x->%x ", p[i], p[i + 1]);
1985	}
1986	snd_iprintf(buffer, "\n");
1987}
1988
1989static void __devinit snd_riptide_proc_init(struct snd_riptide *chip)
1990{
1991	struct snd_info_entry *entry;
1992
1993	if (!snd_card_proc_new(chip->card, "riptide", &entry))
1994		snd_info_set_text_ops(entry, chip, snd_riptide_proc_read);
1995}
1996
1997static int __devinit snd_riptide_mixer(struct snd_riptide *chip)
1998{
1999	struct snd_ac97_bus *pbus;
2000	struct snd_ac97_template ac97;
2001	int err = 0;
2002	static struct snd_ac97_bus_ops ops = {
2003		.write = snd_riptide_codec_write,
2004		.read = snd_riptide_codec_read,
2005	};
2006
2007	memset(&ac97, 0, sizeof(ac97));
2008	ac97.private_data = chip;
2009	ac97.scaps = AC97_SCAP_SKIP_MODEM;
2010
2011	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
2012		return err;
2013
2014	chip->ac97_bus = pbus;
2015	ac97.pci = chip->pci;
2016	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
2017		return err;
2018	return err;
2019}
2020
2021#ifdef SUPPORT_JOYSTICK
2022
2023static int __devinit
2024snd_riptide_joystick_probe(struct pci_dev *pci, const struct pci_device_id *id)
2025{
2026	static int dev;
2027	struct gameport *gameport;
2028
2029	if (dev >= SNDRV_CARDS)
2030		return -ENODEV;
2031	if (!enable[dev]) {
2032		dev++;
2033		return -ENOENT;
2034	}
2035
2036	if (!joystick_port[dev++])
2037		return 0;
2038
2039	gameport = gameport_allocate_port();
2040	if (!gameport)
2041		return -ENOMEM;
2042	if (!request_region(joystick_port[dev], 8, "Riptide gameport")) {
2043		snd_printk(KERN_WARNING
2044			   "Riptide: cannot grab gameport 0x%x\n",
2045			   joystick_port[dev]);
2046		gameport_free_port(gameport);
2047		return -EBUSY;
2048	}
2049
2050	gameport->io = joystick_port[dev];
2051	gameport_register_port(gameport);
2052	pci_set_drvdata(pci, gameport);
2053	return 0;
2054}
2055
2056static void __devexit snd_riptide_joystick_remove(struct pci_dev *pci)
2057{
2058	struct gameport *gameport = pci_get_drvdata(pci);
2059	if (gameport) {
2060		release_region(gameport->io, 8);
2061		gameport_unregister_port(gameport);
2062		pci_set_drvdata(pci, NULL);
2063	}
2064}
2065#endif
2066
2067static int __devinit
2068snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2069{
2070	static int dev;
2071	struct snd_card *card;
2072	struct snd_riptide *chip;
2073	unsigned short val;
2074	int err;
2075
2076	if (dev >= SNDRV_CARDS)
2077		return -ENODEV;
2078	if (!enable[dev]) {
2079		dev++;
2080		return -ENOENT;
2081	}
2082
2083	err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
2084	if (err < 0)
2085		return err;
2086	err = snd_riptide_create(card, pci, &chip);
2087	if (err < 0)
2088		goto error;
2089	card->private_data = chip;
2090	err = snd_riptide_pcm(chip, 0, NULL);
2091	if (err < 0)
2092		goto error;
2093	err = snd_riptide_mixer(chip);
2094	if (err < 0)
2095		goto error;
2096
2097	val = LEGACY_ENABLE_ALL;
2098	if (opl3_port[dev])
2099		val |= LEGACY_ENABLE_FM;
2100#ifdef SUPPORT_JOYSTICK
2101	if (joystick_port[dev])
2102		val |= LEGACY_ENABLE_GAMEPORT;
2103#endif
2104	if (mpu_port[dev])
2105		val |= LEGACY_ENABLE_MPU_INT | LEGACY_ENABLE_MPU;
2106	val |= (chip->irq << 4) & 0xf0;
2107	pci_write_config_word(chip->pci, PCI_EXT_Legacy_Mask, val);
2108	if (mpu_port[dev]) {
2109		val = mpu_port[dev];
2110		pci_write_config_word(chip->pci, PCI_EXT_MPU_Base, val);
2111		err = snd_mpu401_uart_new(card, 0, MPU401_HW_RIPTIDE,
2112					  val, 0, chip->irq, 0,
2113					  &chip->rmidi);
2114		if (err < 0)
2115			snd_printk(KERN_WARNING
2116				   "Riptide: Can't Allocate MPU at 0x%x\n",
2117				   val);
2118		else
2119			chip->mpuaddr = val;
2120	}
2121	if (opl3_port[dev]) {
2122		val = opl3_port[dev];
2123		pci_write_config_word(chip->pci, PCI_EXT_FM_Base, val);
2124		err = snd_opl3_create(card, val, val + 2,
2125				      OPL3_HW_RIPTIDE, 0, &chip->opl3);
2126		if (err < 0)
2127			snd_printk(KERN_WARNING
2128				   "Riptide: Can't Allocate OPL3 at 0x%x\n",
2129				   val);
2130		else {
2131			chip->opladdr = val;
2132			err = snd_opl3_hwdep_new(chip->opl3, 0, 1, NULL);
2133			if (err < 0)
2134				snd_printk(KERN_WARNING
2135					   "Riptide: Can't Allocate OPL3-HWDEP\n");
2136		}
2137	}
2138#ifdef SUPPORT_JOYSTICK
2139	if (joystick_port[dev]) {
2140		val = joystick_port[dev];
2141		pci_write_config_word(chip->pci, PCI_EXT_Game_Base, val);
2142		chip->gameaddr = val;
2143	}
2144#endif
2145
2146	strcpy(card->driver, "RIPTIDE");
2147	strcpy(card->shortname, "Riptide");
2148#ifdef SUPPORT_JOYSTICK
2149	snprintf(card->longname, sizeof(card->longname),
2150		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x gameport 0x%x",
2151		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
2152		 chip->opladdr, chip->gameaddr);
2153#else
2154	snprintf(card->longname, sizeof(card->longname),
2155		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x",
2156		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
2157		 chip->opladdr);
2158#endif
2159	snd_riptide_proc_init(chip);
2160	err = snd_card_register(card);
2161	if (err < 0)
2162		goto error;
2163	pci_set_drvdata(pci, card);
2164	dev++;
2165	return 0;
2166
2167 error:
2168	snd_card_free(card);
2169	return err;
2170}
2171
2172static void __devexit snd_card_riptide_remove(struct pci_dev *pci)
2173{
2174	snd_card_free(pci_get_drvdata(pci));
2175	pci_set_drvdata(pci, NULL);
2176}
2177
2178static struct pci_driver driver = {
2179	.name = "RIPTIDE",
2180	.id_table = snd_riptide_ids,
2181	.probe = snd_card_riptide_probe,
2182	.remove = __devexit_p(snd_card_riptide_remove),
2183#ifdef CONFIG_PM
2184	.suspend = riptide_suspend,
2185	.resume = riptide_resume,
2186#endif
2187};
2188
2189#ifdef SUPPORT_JOYSTICK
2190static struct pci_driver joystick_driver = {
2191	.name = "Riptide Joystick",
2192	.id_table = snd_riptide_joystick_ids,
2193	.probe = snd_riptide_joystick_probe,
2194	.remove = __devexit_p(snd_riptide_joystick_remove),
2195};
2196#endif
2197
2198static int __init alsa_card_riptide_init(void)
2199{
2200	int err;
2201	err = pci_register_driver(&driver);
2202	if (err < 0)
2203		return err;
2204#if defined(SUPPORT_JOYSTICK)
2205	err = pci_register_driver(&joystick_driver);
2206	/* On failure unregister formerly registered audio driver */
2207	if (err < 0)
2208		pci_unregister_driver(&driver);
2209#endif
2210	return err;
2211}
2212
2213static void __exit alsa_card_riptide_exit(void)
2214{
2215	pci_unregister_driver(&driver);
2216#if defined(SUPPORT_JOYSTICK)
2217	pci_unregister_driver(&joystick_driver);
2218#endif
2219}
2220
2221module_init(alsa_card_riptide_init);
2222module_exit(alsa_card_riptide_exit);
2223