xref: /linux/sound/pci/riptide/riptide.c (revision 7e0af29d6f3964bec3d72c6caeb87a603e660fdf)
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 <sound/driver.h>
92 #include <linux/delay.h>
93 #include <linux/init.h>
94 #include <linux/interrupt.h>
95 #include <linux/pci.h>
96 #include <linux/slab.h>
97 #include <linux/wait.h>
98 #include <linux/gameport.h>
99 #include <linux/device.h>
100 #include <linux/firmware.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 
116 MODULE_AUTHOR("Peter Gruber <nokos@gmx.net>");
117 MODULE_DESCRIPTION("riptide");
118 MODULE_LICENSE("GPL");
119 MODULE_SUPPORTED_DEVICE("{{Conexant,Riptide}}");
120 MODULE_FIRMWARE("riptide.hex");
121 
122 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
123 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
124 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
125 
126 #ifdef SUPPORT_JOYSTICK
127 static int joystick_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x200 };
128 #endif
129 static int mpu_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x330 };
130 static int opl3_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x388 };
131 
132 module_param_array(index, int, NULL, 0444);
133 MODULE_PARM_DESC(index, "Index value for Riptide soundcard.");
134 module_param_array(id, charp, NULL, 0444);
135 MODULE_PARM_DESC(id, "ID string for Riptide soundcard.");
136 module_param_array(enable, bool, NULL, 0444);
137 MODULE_PARM_DESC(enable, "Enable Riptide soundcard.");
138 #ifdef SUPPORT_JOYSTICK
139 module_param_array(joystick_port, int, NULL, 0444);
140 MODULE_PARM_DESC(joystick_port, "Joystick port # for Riptide soundcard.");
141 #endif
142 module_param_array(mpu_port, int, NULL, 0444);
143 MODULE_PARM_DESC(mpu_port, "MPU401 port # for Riptide driver.");
144 module_param_array(opl3_port, int, NULL, 0444);
145 MODULE_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    500000
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 
313 enum FIRMWARE {
314 	DATA_REC = 0, EXT_END_OF_FILE, EXT_SEG_ADDR_REC, EXT_GOTO_CMD_REC,
315 	EXT_LIN_ADDR_REC,
316 };
317 
318 enum 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 
327 enum 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 
344 enum 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 
361 enum 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 
367 enum 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 
374 enum { SB_CMD = 0, MODEM_CMD, I2S_CMD0, I2S_CMD1, FM_CMD, MAX_CMD };
375 
376 struct lbuspath {
377 	unsigned char *noconv;
378 	unsigned char *stereo;
379 	unsigned char *mono;
380 };
381 
382 struct cmdport {
383 	u32 data1;		/* cmd,param */
384 	u32 data2;		/* param */
385 	u32 stat;		/* status */
386 	u32 pad[5];
387 };
388 
389 struct riptideport {
390 	u32 audio_control;	/* status registers */
391 	u32 audio_status;
392 	u32 pad[2];
393 	struct cmdport port[2];	/* command ports */
394 };
395 
396 struct 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 
407 struct riptide_firmware {
408 	u16 ASIC;
409 	u16 CODEC;
410 	u16 AUXDSP;
411 	u16 PROG;
412 };
413 
414 union cmdret {
415 	u8 retbytes[8];
416 	u16 retwords[4];
417 	u32 retlongs[2];
418 };
419 
420 union 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
428 struct 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 
471 struct sgd {			/* scatter gather desriptor */
472 	u32 dwNextLink;
473 	u32 dwSegPtrPhys;
474 	u32 dwSegLen;
475 	u32 dwStat_Ctl;
476 };
477 
478 struct 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 
499 static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
500 		   union cmdret *ret);
501 static int getsourcesink(struct cmdif *cif, unsigned char source,
502 			 unsigned char sink, unsigned char *a,
503 			 unsigned char *b);
504 static int snd_riptide_initialize(struct snd_riptide *chip);
505 static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip);
506 
507 /*
508  */
509 
510 static struct pci_device_id snd_riptide_ids[] = {
511 	{
512 	 .vendor = 0x127a,.device = 0x4310,
513 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
514 	 },
515 	{
516 	 .vendor = 0x127a,.device = 0x4320,
517 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
518 	 },
519 	{
520 	 .vendor = 0x127a,.device = 0x4330,
521 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
522 	 },
523 	{
524 	 .vendor = 0x127a,.device = 0x4340,
525 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
526 	 },
527 	{0,},
528 };
529 
530 #ifdef SUPPORT_JOYSTICK
531 static struct pci_device_id snd_riptide_joystick_ids[] __devinitdata = {
532 	{
533 	 .vendor = 0x127a,.device = 0x4312,
534 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
535 	 },
536 	{
537 	 .vendor = 0x127a,.device = 0x4322,
538 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
539 	 },
540 	{.vendor = 0x127a,.device = 0x4332,
541 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
542 	 },
543 	{.vendor = 0x127a,.device = 0x4342,
544 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
545 	 },
546 	{0,},
547 };
548 #endif
549 
550 MODULE_DEVICE_TABLE(pci, snd_riptide_ids);
551 
552 /*
553  */
554 
555 static unsigned char lbusin2out[E2SINK_MAX + 1][2] = {
556 	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
557 								     LS_NONE2},
558 	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
559 								     LS_NONE2},
560 	{INTER0_OUT, LS_SRC_INTERPOLATOR}, {INTER1_OUT, LS_SRC_INTERPOLATOR},
561 	{INTER2_OUT, LS_SRC_INTERPOLATOR}, {INTER3_OUT, LS_SRC_INTERPOLATOR},
562 	{INTER4_OUT, LS_SRC_INTERPOLATOR}, {INTERM0_OUT, LS_SRC_INTERPOLATORM},
563 	{INTERM1_OUT, LS_SRC_INTERPOLATORM}, {INTERM2_OUT,
564 					      LS_SRC_INTERPOLATORM},
565 	{INTERM3_OUT, LS_SRC_INTERPOLATORM}, {INTERM4_OUT,
566 					      LS_SRC_INTERPOLATORM},
567 	{INTERM5_OUT, LS_SRC_INTERPOLATORM}, {INTERM6_OUT,
568 					      LS_SRC_INTERPOLATORM},
569 	{DECIMM0_OUT, LS_SRC_DECIMATORM}, {DECIMM1_OUT, LS_SRC_DECIMATORM},
570 	{DECIMM2_OUT, LS_SRC_DECIMATORM}, {DECIMM3_OUT, LS_SRC_DECIMATORM},
571 	{DECIM0_OUT, LS_SRC_DECIMATOR}, {SR3_4_OUT, LS_NONE1}, {NO_OUT,
572 								LS_NONE2},
573 	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1},
574 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
575 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
576 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
577 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
578 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
579 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
580 	{GAINFUNC0_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC1_OUT,
581 						  LS_MIXER_GAIN_FUNCTION},
582 	{GAINFUNC2_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC3_OUT,
583 						  LS_MIXER_GAIN_FUNCTION},
584 	{GAINFUNC4_OUT, LS_MIXER_GAIN_FUNCTION}, {SOFTMODEMTX, LS_NONE1},
585 	{SPLITTER0_OUTL, LS_SRC_SPLITTER}, {SPLITTER1_OUTL, LS_SRC_SPLITTER},
586 	{SPLITTER2_OUTL, LS_SRC_SPLITTER}, {SPLITTER3_OUTL, LS_SRC_SPLITTER},
587 	{MERGER0_OUT, LS_SRC_MERGER}, {MERGER0_OUT, LS_SRC_MERGER},
588 	{MERGER1_OUT, LS_SRC_MERGER},
589 	{MERGER1_OUT, LS_SRC_MERGER}, {MERGER2_OUT, LS_SRC_MERGER},
590 	{MERGER2_OUT, LS_SRC_MERGER},
591 	{MERGER3_OUT, LS_SRC_MERGER}, {MERGER3_OUT, LS_SRC_MERGER}, {NO_OUT,
592 								     LS_NONE2},
593 };
594 
595 static unsigned char lbus_play_opl3[] = {
596 	DIGITAL_MIXER_IN0 + FM_MIXER, 0xff
597 };
598 static unsigned char lbus_play_modem[] = {
599 	DIGITAL_MIXER_IN0 + MODEM_MIXER, 0xff
600 };
601 static unsigned char lbus_play_i2s[] = {
602 	INTER0_IN + I2S_INTDEC, DIGITAL_MIXER_IN0 + I2S_MIXER, 0xff
603 };
604 static unsigned char lbus_play_out[] = {
605 	PDAC2ACLNK, 0xff
606 };
607 static unsigned char lbus_play_outhp[] = {
608 	HNDSPK2ACLNK, 0xff
609 };
610 static unsigned char lbus_play_noconv1[] = {
611 	DIGITAL_MIXER_IN0, 0xff
612 };
613 static unsigned char lbus_play_stereo1[] = {
614 	INTER0_IN, DIGITAL_MIXER_IN0, 0xff
615 };
616 static unsigned char lbus_play_mono1[] = {
617 	INTERM0_IN, DIGITAL_MIXER_IN0, 0xff
618 };
619 static unsigned char lbus_play_noconv2[] = {
620 	DIGITAL_MIXER_IN1, 0xff
621 };
622 static unsigned char lbus_play_stereo2[] = {
623 	INTER1_IN, DIGITAL_MIXER_IN1, 0xff
624 };
625 static unsigned char lbus_play_mono2[] = {
626 	INTERM1_IN, DIGITAL_MIXER_IN1, 0xff
627 };
628 static unsigned char lbus_play_noconv3[] = {
629 	DIGITAL_MIXER_IN2, 0xff
630 };
631 static unsigned char lbus_play_stereo3[] = {
632 	INTER2_IN, DIGITAL_MIXER_IN2, 0xff
633 };
634 static unsigned char lbus_play_mono3[] = {
635 	INTERM2_IN, DIGITAL_MIXER_IN2, 0xff
636 };
637 static unsigned char lbus_rec_noconv1[] = {
638 	LBUS2ARM_FIFO5, 0xff
639 };
640 static unsigned char lbus_rec_stereo1[] = {
641 	DECIM0_IN, LBUS2ARM_FIFO5, 0xff
642 };
643 static unsigned char lbus_rec_mono1[] = {
644 	DECIMM3_IN, LBUS2ARM_FIFO5, 0xff
645 };
646 
647 static unsigned char play_ids[] = { 4, 1, 2, };
648 static unsigned char play_sources[] = {
649 	ARM2LBUS_FIFO4, ARM2LBUS_FIFO1, ARM2LBUS_FIFO2,
650 };
651 static struct lbuspath lbus_play_paths[] = {
652 	{
653 	 .noconv = lbus_play_noconv1,
654 	 .stereo = lbus_play_stereo1,
655 	 .mono = lbus_play_mono1,
656 	 },
657 	{
658 	 .noconv = lbus_play_noconv2,
659 	 .stereo = lbus_play_stereo2,
660 	 .mono = lbus_play_mono2,
661 	 },
662 	{
663 	 .noconv = lbus_play_noconv3,
664 	 .stereo = lbus_play_stereo3,
665 	 .mono = lbus_play_mono3,
666 	 },
667 };
668 static struct lbuspath lbus_rec_path = {
669 	.noconv = lbus_rec_noconv1,
670 	.stereo = lbus_rec_stereo1,
671 	.mono = lbus_rec_mono1,
672 };
673 
674 #define FIRMWARE_VERSIONS 1
675 static union firmware_version firmware_versions[] = {
676 	{
677 		.firmware = {
678 			.ASIC = 3,
679 			.CODEC = 2,
680 			.AUXDSP = 3,
681 			.PROG = 773,
682 		},
683 	},
684 };
685 
686 static u32 atoh(unsigned char *in, unsigned int len)
687 {
688 	u32 sum = 0;
689 	unsigned int mult = 1;
690 	unsigned char c;
691 
692 	while (len) {
693 		c = in[len - 1];
694 		if ((c >= '0') && (c <= '9'))
695 			sum += mult * (c - '0');
696 		else if ((c >= 'A') && (c <= 'F'))
697 			sum += mult * (c - ('A' - 10));
698 		else if ((c >= 'a') && (c <= 'f'))
699 			sum += mult * (c - ('a' - 10));
700 		mult *= 16;
701 		--len;
702 	}
703 	return sum;
704 }
705 
706 static int senddata(struct cmdif *cif, unsigned char *in, u32 offset)
707 {
708 	u32 addr;
709 	u32 data;
710 	u32 i;
711 	unsigned char *p;
712 
713 	i = atoh(&in[1], 2);
714 	addr = offset + atoh(&in[3], 4);
715 	if (SEND_SMEM(cif, 0, addr) != 0)
716 		return -EACCES;
717 	p = in + 9;
718 	while (i) {
719 		data = atoh(p, 8);
720 		if (SEND_WMEM(cif, 2,
721 			      ((data & 0x0f0f0f0f) << 4) | ((data & 0xf0f0f0f0)
722 							    >> 4)))
723 			return -EACCES;
724 		i -= 4;
725 		p += 8;
726 	}
727 	return 0;
728 }
729 
730 static int loadfirmware(struct cmdif *cif, unsigned char *img,
731 			unsigned int size)
732 {
733 	unsigned char *in;
734 	u32 laddr, saddr, t, val;
735 	int err = 0;
736 
737 	laddr = saddr = 0;
738 	while (size > 0 && err == 0) {
739 		in = img;
740 		if (in[0] == ':') {
741 			t = atoh(&in[7], 2);
742 			switch (t) {
743 			case DATA_REC:
744 				err = senddata(cif, in, laddr + saddr);
745 				break;
746 			case EXT_SEG_ADDR_REC:
747 				saddr = atoh(&in[9], 4) << 4;
748 				break;
749 			case EXT_LIN_ADDR_REC:
750 				laddr = atoh(&in[9], 4) << 16;
751 				break;
752 			case EXT_GOTO_CMD_REC:
753 				val = atoh(&in[9], 8);
754 				if (SEND_GOTO(cif, val) != 0)
755 					err = -EACCES;
756 				break;
757 			case EXT_END_OF_FILE:
758 				size = 0;
759 				break;
760 			default:
761 				break;
762 			}
763 			while (size > 0) {
764 				size--;
765 				if (*img++ == '\n')
766 					break;
767 			}
768 		}
769 	}
770 	snd_printdd("load firmware return %d\n", err);
771 	return err;
772 }
773 
774 static void
775 alloclbuspath(struct cmdif *cif, unsigned char source,
776 	      unsigned char *path, unsigned char *mixer, unsigned char *s)
777 {
778 	while (*path != 0xff) {
779 		unsigned char sink, type;
780 
781 		sink = *path & (~SPLIT_PATH);
782 		if (sink != E2SINK_MAX) {
783 			snd_printdd("alloc path 0x%x->0x%x\n", source, sink);
784 			SEND_PSEL(cif, source, sink);
785 			source = lbusin2out[sink][0];
786 			type = lbusin2out[sink][1];
787 			if (type == LS_MIXER_IN) {
788 				if (mixer)
789 					*mixer = sink - DIGITAL_MIXER_IN0;
790 			}
791 			if (type == LS_SRC_DECIMATORM ||
792 			    type == LS_SRC_DECIMATOR ||
793 			    type == LS_SRC_INTERPOLATORM ||
794 			    type == LS_SRC_INTERPOLATOR) {
795 				if (s) {
796 					if (s[0] != 0xff)
797 						s[1] = sink;
798 					else
799 						s[0] = sink;
800 				}
801 			}
802 		}
803 		if (*path++ & SPLIT_PATH) {
804 			unsigned char *npath = path;
805 
806 			while (*npath != 0xff)
807 				npath++;
808 			alloclbuspath(cif, source + 1, ++npath, mixer, s);
809 		}
810 	}
811 }
812 
813 static void
814 freelbuspath(struct cmdif *cif, unsigned char source, unsigned char *path)
815 {
816 	while (*path != 0xff) {
817 		unsigned char sink;
818 
819 		sink = *path & (~SPLIT_PATH);
820 		if (sink != E2SINK_MAX) {
821 			snd_printdd("free path 0x%x->0x%x\n", source, sink);
822 			SEND_PCLR(cif, source, sink);
823 			source = lbusin2out[sink][0];
824 		}
825 		if (*path++ & SPLIT_PATH) {
826 			unsigned char *npath = path;
827 
828 			while (*npath != 0xff)
829 				npath++;
830 			freelbuspath(cif, source + 1, ++npath);
831 		}
832 	}
833 }
834 
835 static int writearm(struct cmdif *cif, u32 addr, u32 data, u32 mask)
836 {
837 	union cmdret rptr = CMDRET_ZERO;
838 	unsigned int i = MAX_WRITE_RETRY;
839 	int flag = 1;
840 
841 	SEND_RMEM(cif, 0x02, addr, &rptr);
842 	rptr.retlongs[0] &= (~mask);
843 
844 	while (--i) {
845 		SEND_SMEM(cif, 0x01, addr);
846 		SEND_WMEM(cif, 0x02, (rptr.retlongs[0] | data));
847 		SEND_RMEM(cif, 0x02, addr, &rptr);
848 		if ((rptr.retlongs[0] & data) == data) {
849 			flag = 0;
850 			break;
851 		} else
852 			rptr.retlongs[0] &= ~mask;
853 	}
854 	snd_printdd("send arm 0x%x 0x%x 0x%x return %d\n", addr, data, mask,
855 		    flag);
856 	return flag;
857 }
858 
859 static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
860 		   union cmdret *ret)
861 {
862 	int i, j;
863 	int err;
864 	unsigned int time = 0;
865 	unsigned long irqflags;
866 	struct riptideport *hwport;
867 	struct cmdport *cmdport = NULL;
868 
869 	snd_assert(cif, return -EINVAL);
870 
871 	hwport = cif->hwport;
872 	if (cif->errcnt > MAX_ERROR_COUNT) {
873 		if (cif->is_reset) {
874 			snd_printk(KERN_ERR
875 				   "Riptide: Too many failed cmds, reinitializing\n");
876 			if (riptide_reset(cif, NULL) == 0) {
877 				cif->errcnt = 0;
878 				return -EIO;
879 			}
880 		}
881 		snd_printk(KERN_ERR "Riptide: Initialization failed.\n");
882 		return -EINVAL;
883 	}
884 	if (ret) {
885 		ret->retlongs[0] = 0;
886 		ret->retlongs[1] = 0;
887 	}
888 	i = 0;
889 	spin_lock_irqsave(&cif->lock, irqflags);
890 	while (i++ < CMDIF_TIMEOUT && !IS_READY(cif->hwport))
891 		udelay(10);
892 	if (i >= CMDIF_TIMEOUT) {
893 		err = -EBUSY;
894 		goto errout;
895 	}
896 
897 	err = 0;
898 	for (j = 0, time = 0; time < CMDIF_TIMEOUT; j++, time += 2) {
899 		cmdport = &(hwport->port[j % 2]);
900 		if (IS_DATF(cmdport)) {	/* free pending data */
901 			READ_PORT_ULONG(cmdport->data1);
902 			READ_PORT_ULONG(cmdport->data2);
903 		}
904 		if (IS_CMDE(cmdport)) {
905 			if (flags & PARM)	/* put data */
906 				WRITE_PORT_ULONG(cmdport->data2, parm);
907 			WRITE_PORT_ULONG(cmdport->data1, cmd);	/* write cmd */
908 			if ((flags & RESP) && ret) {
909 				while (!IS_DATF(cmdport) &&
910 				       time++ < CMDIF_TIMEOUT)
911 					udelay(10);
912 				if (time < CMDIF_TIMEOUT) {	/* read response */
913 					ret->retlongs[0] =
914 					    READ_PORT_ULONG(cmdport->data1);
915 					ret->retlongs[1] =
916 					    READ_PORT_ULONG(cmdport->data2);
917 				} else {
918 					err = -ENOSYS;
919 					goto errout;
920 				}
921 			}
922 			break;
923 		}
924 		udelay(20);
925 	}
926 	if (time == CMDIF_TIMEOUT) {
927 		err = -ENODATA;
928 		goto errout;
929 	}
930 	spin_unlock_irqrestore(&cif->lock, irqflags);
931 
932 	cif->cmdcnt++;		/* update command statistics */
933 	cif->cmdtime += time;
934 	if (time > cif->cmdtimemax)
935 		cif->cmdtimemax = time;
936 	if (time < cif->cmdtimemin)
937 		cif->cmdtimemin = time;
938 	if ((cif->cmdcnt) % 1000 == 0)
939 		snd_printdd
940 		    ("send cmd %d time: %d mintime: %d maxtime %d err: %d\n",
941 		     cif->cmdcnt, cif->cmdtime, cif->cmdtimemin,
942 		     cif->cmdtimemax, cif->errcnt);
943 	return 0;
944 
945       errout:
946 	cif->errcnt++;
947 	spin_unlock_irqrestore(&cif->lock, irqflags);
948 	snd_printdd
949 	    ("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",
950 	     cif->cmdcnt, (int)((void *)&(cmdport->stat) - (void *)hwport),
951 	     flags, cmd, parm, ret ? ret->retlongs[0] : 0,
952 	     ret ? ret->retlongs[1] : 0, IS_CMDE(cmdport), IS_DATF(cmdport),
953 	     err);
954 	return err;
955 }
956 
957 static int
958 setmixer(struct cmdif *cif, short num, unsigned short rval, unsigned short lval)
959 {
960 	union cmdret rptr = CMDRET_ZERO;
961 	int i = 0;
962 
963 	snd_printdd("sent mixer %d: 0x%d 0x%d\n", num, rval, lval);
964 	do {
965 		SEND_SDGV(cif, num, num, rval, lval);
966 		SEND_RDGV(cif, num, num, &rptr);
967 		if (rptr.retwords[0] == lval && rptr.retwords[1] == rval)
968 			return 0;
969 	} while (i++ < MAX_WRITE_RETRY);
970 	snd_printdd("sent mixer failed\n");
971 	return -EIO;
972 }
973 
974 static int getpaths(struct cmdif *cif, unsigned char *o)
975 {
976 	unsigned char src[E2SINK_MAX];
977 	unsigned char sink[E2SINK_MAX];
978 	int i, j = 0;
979 
980 	for (i = 0; i < E2SINK_MAX; i++) {
981 		getsourcesink(cif, i, i, &src[i], &sink[i]);
982 		if (sink[i] < E2SINK_MAX) {
983 			o[j++] = sink[i];
984 			o[j++] = i;
985 		}
986 	}
987 	return j;
988 }
989 
990 static int
991 getsourcesink(struct cmdif *cif, unsigned char source, unsigned char sink,
992 	      unsigned char *a, unsigned char *b)
993 {
994 	union cmdret rptr = CMDRET_ZERO;
995 
996 	if (SEND_RSSV(cif, source, sink, &rptr) &&
997 	    SEND_RSSV(cif, source, sink, &rptr))
998 		return -EIO;
999 	*a = rptr.retbytes[0];
1000 	*b = rptr.retbytes[1];
1001 	snd_printdd("getsourcesink 0x%x 0x%x\n", *a, *b);
1002 	return 0;
1003 }
1004 
1005 static int
1006 getsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int *rate)
1007 {
1008 	unsigned char *s;
1009 	unsigned int p[2] = { 0, 0 };
1010 	int i;
1011 	union cmdret rptr = CMDRET_ZERO;
1012 
1013 	s = intdec;
1014 	for (i = 0; i < 2; i++) {
1015 		if (*s != 0xff) {
1016 			if (SEND_RSRC(cif, *s, &rptr) &&
1017 			    SEND_RSRC(cif, *s, &rptr))
1018 				return -EIO;
1019 			p[i] += rptr.retwords[1];
1020 			p[i] *= rptr.retwords[2];
1021 			p[i] += rptr.retwords[3];
1022 			p[i] /= 65536;
1023 		}
1024 		s++;
1025 	}
1026 	if (p[0]) {
1027 		if (p[1] != p[0])
1028 			snd_printdd("rates differ %d %d\n", p[0], p[1]);
1029 		*rate = (unsigned int)p[0];
1030 	} else
1031 		*rate = (unsigned int)p[1];
1032 	snd_printdd("getsampleformat %d %d %d\n", intdec[0], intdec[1], *rate);
1033 	return 0;
1034 }
1035 
1036 static int
1037 setsampleformat(struct cmdif *cif,
1038 		unsigned char mixer, unsigned char id,
1039 		unsigned char channels, unsigned char format)
1040 {
1041 	unsigned char w, ch, sig, order;
1042 
1043 	snd_printdd
1044 	    ("setsampleformat mixer: %d id: %d channels: %d format: %d\n",
1045 	     mixer, id, channels, format);
1046 	ch = channels == 1;
1047 	w = snd_pcm_format_width(format) == 8;
1048 	sig = snd_pcm_format_unsigned(format) != 0;
1049 	order = snd_pcm_format_big_endian(format) != 0;
1050 
1051 	if (SEND_SETF(cif, mixer, w, ch, order, sig, id) &&
1052 	    SEND_SETF(cif, mixer, w, ch, order, sig, id)) {
1053 		snd_printdd("setsampleformat failed\n");
1054 		return -EIO;
1055 	}
1056 	return 0;
1057 }
1058 
1059 static int
1060 setsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int rate)
1061 {
1062 	u32 D, M, N;
1063 	union cmdret rptr = CMDRET_ZERO;
1064 	int i;
1065 
1066 	snd_printdd("setsamplerate intdec: %d,%d rate: %d\n", intdec[0],
1067 		    intdec[1], rate);
1068 	D = 48000;
1069 	M = ((rate == 48000) ? 47999 : rate) * 65536;
1070 	N = M % D;
1071 	M /= D;
1072 	for (i = 0; i < 2; i++) {
1073 		if (*intdec != 0xff) {
1074 			do {
1075 				SEND_SSRC(cif, *intdec, D, M, N);
1076 				SEND_RSRC(cif, *intdec, &rptr);
1077 			} while (rptr.retwords[1] != D &&
1078 				 rptr.retwords[2] != M &&
1079 				 rptr.retwords[3] != N &&
1080 				 i++ < MAX_WRITE_RETRY);
1081 			if (i == MAX_WRITE_RETRY) {
1082 				snd_printdd("sent samplerate %d: %d failed\n",
1083 					    *intdec, rate);
1084 				return -EIO;
1085 			}
1086 		}
1087 		intdec++;
1088 	}
1089 	return 0;
1090 }
1091 
1092 static int
1093 getmixer(struct cmdif *cif, short num, unsigned short *rval,
1094 	 unsigned short *lval)
1095 {
1096 	union cmdret rptr = CMDRET_ZERO;
1097 
1098 	if (SEND_RDGV(cif, num, num, &rptr) && SEND_RDGV(cif, num, num, &rptr))
1099 		return -EIO;
1100 	*rval = rptr.retwords[0];
1101 	*lval = rptr.retwords[1];
1102 	snd_printdd("got mixer %d: 0x%d 0x%d\n", num, *rval, *lval);
1103 	return 0;
1104 }
1105 
1106 static void riptide_handleirq(unsigned long dev_id)
1107 {
1108 	struct snd_riptide *chip = (void *)dev_id;
1109 	struct cmdif *cif = chip->cif;
1110 	struct snd_pcm_substream *substream[PLAYBACK_SUBSTREAMS + 1];
1111 	struct snd_pcm_runtime *runtime;
1112 	struct pcmhw *data = NULL;
1113 	unsigned int pos, period_bytes;
1114 	struct sgd *c;
1115 	int i, j;
1116 	unsigned int flag;
1117 
1118 	if (!cif)
1119 		return;
1120 
1121 	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++)
1122 		substream[i] = chip->playback_substream[i];
1123 	substream[i] = chip->capture_substream;
1124 	for (i = 0; i < PLAYBACK_SUBSTREAMS + 1; i++) {
1125 		if (substream[i] &&
1126 		    (runtime = substream[i]->runtime) &&
1127 		    (data = runtime->private_data) && data->state != ST_STOP) {
1128 			pos = 0;
1129 			for (j = 0; j < data->pages; j++) {
1130 				c = &data->sgdbuf[j];
1131 				flag = le32_to_cpu(c->dwStat_Ctl);
1132 				if (flag & EOB_STATUS)
1133 					pos += le32_to_cpu(c->dwSegLen);
1134 				if (flag & EOC_STATUS)
1135 					pos += le32_to_cpu(c->dwSegLen);
1136 				if ((flag & EOS_STATUS)
1137 				    && (data->state == ST_PLAY)) {
1138 					data->state = ST_STOP;
1139 					snd_printk(KERN_ERR
1140 						   "Riptide: DMA stopped unexpectedly\n");
1141 				}
1142 				c->dwStat_Ctl =
1143 				    cpu_to_le32(flag &
1144 						~(EOS_STATUS | EOB_STATUS |
1145 						  EOC_STATUS));
1146 			}
1147 			data->pointer += pos;
1148 			pos += data->oldpos;
1149 			if (data->state != ST_STOP) {
1150 				period_bytes =
1151 				    frames_to_bytes(runtime,
1152 						    runtime->period_size);
1153 				snd_printdd
1154 				    ("interrupt 0x%x after 0x%lx of 0x%lx frames in period\n",
1155 				     READ_AUDIO_STATUS(cif->hwport),
1156 				     bytes_to_frames(runtime, pos),
1157 				     runtime->period_size);
1158 				j = 0;
1159 				if (pos >= period_bytes) {
1160 					j++;
1161 					while (pos >= period_bytes)
1162 						pos -= period_bytes;
1163 				}
1164 				data->oldpos = pos;
1165 				if (j > 0)
1166 					snd_pcm_period_elapsed(substream[i]);
1167 			}
1168 		}
1169 	}
1170 }
1171 
1172 #ifdef CONFIG_PM
1173 static int riptide_suspend(struct pci_dev *pci, pm_message_t state)
1174 {
1175 	struct snd_card *card = pci_get_drvdata(pci);
1176 	struct snd_riptide *chip = card->private_data;
1177 
1178 	chip->in_suspend = 1;
1179 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1180 	snd_pcm_suspend_all(chip->pcm);
1181 	snd_ac97_suspend(chip->ac97);
1182 	pci_disable_device(pci);
1183 	pci_save_state(pci);
1184 	pci_set_power_state(pci, pci_choose_state(pci, state));
1185 	return 0;
1186 }
1187 
1188 static int riptide_resume(struct pci_dev *pci)
1189 {
1190 	struct snd_card *card = pci_get_drvdata(pci);
1191 	struct snd_riptide *chip = card->private_data;
1192 
1193 	pci_set_power_state(pci, PCI_D0);
1194 	pci_restore_state(pci);
1195 	if (pci_enable_device(pci) < 0) {
1196 		printk(KERN_ERR "riptide: pci_enable_device failed, "
1197 		       "disabling device\n");
1198 		snd_card_disconnect(card);
1199 		return -EIO;
1200 	}
1201 	pci_set_master(pci);
1202 	snd_riptide_initialize(chip);
1203 	snd_ac97_resume(chip->ac97);
1204 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1205 	chip->in_suspend = 0;
1206 	return 0;
1207 }
1208 #endif
1209 
1210 static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip)
1211 {
1212 	int timeout, tries;
1213 	union cmdret rptr = CMDRET_ZERO;
1214 	union firmware_version firmware;
1215 	int i, j, err, has_firmware;
1216 
1217 	if (!cif)
1218 		return -EINVAL;
1219 
1220 	cif->cmdcnt = 0;
1221 	cif->cmdtime = 0;
1222 	cif->cmdtimemax = 0;
1223 	cif->cmdtimemin = 0xffffffff;
1224 	cif->errcnt = 0;
1225 	cif->is_reset = 0;
1226 
1227 	tries = RESET_TRIES;
1228 	has_firmware = 0;
1229 	while (has_firmware == 0 && tries-- > 0) {
1230 		for (i = 0; i < 2; i++) {
1231 			WRITE_PORT_ULONG(cif->hwport->port[i].data1, 0);
1232 			WRITE_PORT_ULONG(cif->hwport->port[i].data2, 0);
1233 		}
1234 		SET_GRESET(cif->hwport);
1235 		udelay(100);
1236 		UNSET_GRESET(cif->hwport);
1237 		udelay(100);
1238 
1239 		for (timeout = 100000; --timeout; udelay(10)) {
1240 			if (IS_READY(cif->hwport) && !IS_GERR(cif->hwport))
1241 				break;
1242 		}
1243 		if (timeout == 0) {
1244 			snd_printk(KERN_ERR
1245 				   "Riptide: device not ready, audio status: 0x%x ready: %d gerr: %d\n",
1246 				   READ_AUDIO_STATUS(cif->hwport),
1247 				   IS_READY(cif->hwport), IS_GERR(cif->hwport));
1248 			return -EIO;
1249 		} else {
1250 			snd_printdd
1251 			    ("Riptide: audio status: 0x%x ready: %d gerr: %d\n",
1252 			     READ_AUDIO_STATUS(cif->hwport),
1253 			     IS_READY(cif->hwport), IS_GERR(cif->hwport));
1254 		}
1255 
1256 		SEND_GETV(cif, &rptr);
1257 		for (i = 0; i < 4; i++)
1258 			firmware.ret.retwords[i] = rptr.retwords[i];
1259 
1260 		snd_printdd
1261 		    ("Firmware version: ASIC: %d CODEC %d AUXDSP %d PROG %d\n",
1262 		     firmware.firmware.ASIC, firmware.firmware.CODEC,
1263 		     firmware.firmware.AUXDSP, firmware.firmware.PROG);
1264 
1265 		for (j = 0; j < FIRMWARE_VERSIONS; j++) {
1266 			has_firmware = 1;
1267 			for (i = 0; i < 4; i++) {
1268 				if (firmware_versions[j].ret.retwords[i] !=
1269 				    firmware.ret.retwords[i])
1270 					has_firmware = 0;
1271 			}
1272 			if (has_firmware)
1273 				break;
1274 		}
1275 
1276 		if (chip != NULL && has_firmware == 0) {
1277 			snd_printdd("Writing Firmware\n");
1278 			if (!chip->fw_entry) {
1279 				if ((err =
1280 				     request_firmware(&chip->fw_entry,
1281 						      "riptide.hex",
1282 						      &chip->pci->dev)) != 0) {
1283 					snd_printk(KERN_ERR
1284 						   "Riptide: Firmware not available %d\n",
1285 						   err);
1286 					return -EIO;
1287 				}
1288 			}
1289 			err = loadfirmware(cif, chip->fw_entry->data,
1290 					   chip->fw_entry->size);
1291 			if (err)
1292 				snd_printk(KERN_ERR
1293 					   "Riptide: Could not load firmware %d\n",
1294 					   err);
1295 		}
1296 	}
1297 
1298 	SEND_SACR(cif, 0, AC97_RESET);
1299 	SEND_RACR(cif, AC97_RESET, &rptr);
1300 	snd_printdd("AC97: 0x%x 0x%x\n", rptr.retlongs[0], rptr.retlongs[1]);
1301 
1302 	SEND_PLST(cif, 0);
1303 	SEND_SLST(cif, 0);
1304 	SEND_DLST(cif, 0);
1305 	SEND_ALST(cif, 0);
1306 	SEND_KDMA(cif);
1307 
1308 	writearm(cif, 0x301F8, 1, 1);
1309 	writearm(cif, 0x301F4, 1, 1);
1310 
1311 	SEND_LSEL(cif, MODEM_CMD, 0, 0, MODEM_INTDEC, MODEM_MERGER,
1312 		  MODEM_SPLITTER, MODEM_MIXER);
1313 	setmixer(cif, MODEM_MIXER, 0x7fff, 0x7fff);
1314 	alloclbuspath(cif, ARM2LBUS_FIFO13, lbus_play_modem, NULL, NULL);
1315 
1316 	SEND_LSEL(cif, FM_CMD, 0, 0, FM_INTDEC, FM_MERGER, FM_SPLITTER,
1317 		  FM_MIXER);
1318 	setmixer(cif, FM_MIXER, 0x7fff, 0x7fff);
1319 	writearm(cif, 0x30648 + FM_MIXER * 4, 0x01, 0x00000005);
1320 	writearm(cif, 0x301A8, 0x02, 0x00000002);
1321 	writearm(cif, 0x30264, 0x08, 0xffffffff);
1322 	alloclbuspath(cif, OPL3_SAMPLE, lbus_play_opl3, NULL, NULL);
1323 
1324 	SEND_SSRC(cif, I2S_INTDEC, 48000,
1325 		  ((u32) I2S_RATE * 65536) / 48000,
1326 		  ((u32) I2S_RATE * 65536) % 48000);
1327 	SEND_LSEL(cif, I2S_CMD0, 0, 0, I2S_INTDEC, I2S_MERGER, I2S_SPLITTER,
1328 		  I2S_MIXER);
1329 	SEND_SI2S(cif, 1);
1330 	alloclbuspath(cif, ARM2LBUS_FIFO0, lbus_play_i2s, NULL, NULL);
1331 	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_out, NULL, NULL);
1332 	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_outhp, NULL, NULL);
1333 
1334 	SET_AIACK(cif->hwport);
1335 	SET_AIE(cif->hwport);
1336 	SET_AIACK(cif->hwport);
1337 	cif->is_reset = 1;
1338 	if (chip) {
1339 		for (i = 0; i < 4; i++)
1340 			chip->firmware.ret.retwords[i] =
1341 			    firmware.ret.retwords[i];
1342 	}
1343 
1344 	return 0;
1345 }
1346 
1347 static struct snd_pcm_hardware snd_riptide_playback = {
1348 	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1349 		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1350 		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1351 	.formats =
1352 	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1353 	    | SNDRV_PCM_FMTBIT_U16_LE,
1354 	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1355 	.rate_min = 5500,
1356 	.rate_max = 48000,
1357 	.channels_min = 1,
1358 	.channels_max = 2,
1359 	.buffer_bytes_max = (64 * 1024),
1360 	.period_bytes_min = PAGE_SIZE >> 1,
1361 	.period_bytes_max = PAGE_SIZE << 8,
1362 	.periods_min = 2,
1363 	.periods_max = 64,
1364 	.fifo_size = 0,
1365 };
1366 static struct snd_pcm_hardware snd_riptide_capture = {
1367 	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1368 		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1369 		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1370 	.formats =
1371 	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1372 	    | SNDRV_PCM_FMTBIT_U16_LE,
1373 	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1374 	.rate_min = 5500,
1375 	.rate_max = 48000,
1376 	.channels_min = 1,
1377 	.channels_max = 2,
1378 	.buffer_bytes_max = (64 * 1024),
1379 	.period_bytes_min = PAGE_SIZE >> 1,
1380 	.period_bytes_max = PAGE_SIZE << 3,
1381 	.periods_min = 2,
1382 	.periods_max = 64,
1383 	.fifo_size = 0,
1384 };
1385 
1386 static snd_pcm_uframes_t snd_riptide_pointer(struct snd_pcm_substream
1387 					     *substream)
1388 {
1389 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1390 	struct snd_pcm_runtime *runtime = substream->runtime;
1391 	struct pcmhw *data = get_pcmhwdev(substream);
1392 	struct cmdif *cif = chip->cif;
1393 	union cmdret rptr = CMDRET_ZERO;
1394 	snd_pcm_uframes_t ret;
1395 
1396 	SEND_GPOS(cif, 0, data->id, &rptr);
1397 	if (data->size && runtime->period_size) {
1398 		snd_printdd
1399 		    ("pointer stream %d position 0x%x(0x%x in buffer) bytes 0x%lx(0x%lx in period) frames\n",
1400 		     data->id, rptr.retlongs[1], rptr.retlongs[1] % data->size,
1401 		     bytes_to_frames(runtime, rptr.retlongs[1]),
1402 		     bytes_to_frames(runtime,
1403 				     rptr.retlongs[1]) % runtime->period_size);
1404 		if (rptr.retlongs[1] > data->pointer)
1405 			ret =
1406 			    bytes_to_frames(runtime,
1407 					    rptr.retlongs[1] % data->size);
1408 		else
1409 			ret =
1410 			    bytes_to_frames(runtime,
1411 					    data->pointer % data->size);
1412 	} else {
1413 		snd_printdd("stream not started or strange parms (%d %ld)\n",
1414 			    data->size, runtime->period_size);
1415 		ret = bytes_to_frames(runtime, 0);
1416 	}
1417 	return ret;
1418 }
1419 
1420 static int snd_riptide_trigger(struct snd_pcm_substream *substream, int cmd)
1421 {
1422 	int i, j;
1423 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1424 	struct pcmhw *data = get_pcmhwdev(substream);
1425 	struct cmdif *cif = chip->cif;
1426 	union cmdret rptr = CMDRET_ZERO;
1427 
1428 	spin_lock(&chip->lock);
1429 	switch (cmd) {
1430 	case SNDRV_PCM_TRIGGER_START:
1431 	case SNDRV_PCM_TRIGGER_RESUME:
1432 		if (!(data->state & ST_PLAY)) {
1433 			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1434 			SET_AIE(cif->hwport);
1435 			data->state = ST_PLAY;
1436 			if (data->mixer != 0xff)
1437 				setmixer(cif, data->mixer, 0x7fff, 0x7fff);
1438 			chip->openstreams++;
1439 			data->oldpos = 0;
1440 			data->pointer = 0;
1441 		}
1442 		break;
1443 	case SNDRV_PCM_TRIGGER_STOP:
1444 	case SNDRV_PCM_TRIGGER_SUSPEND:
1445 		if (data->mixer != 0xff)
1446 			setmixer(cif, data->mixer, 0, 0);
1447 		setmixer(cif, data->mixer, 0, 0);
1448 		SEND_KSTR(cif, data->id);
1449 		data->state = ST_STOP;
1450 		chip->openstreams--;
1451 		j = 0;
1452 		do {
1453 			i = rptr.retlongs[1];
1454 			SEND_GPOS(cif, 0, data->id, &rptr);
1455 			udelay(1);
1456 		} while (i != rptr.retlongs[1] && j++ < MAX_WRITE_RETRY);
1457 		if (j >= MAX_WRITE_RETRY)
1458 			snd_printk(KERN_ERR "Riptide: Could not stop stream!");
1459 		break;
1460 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1461 		if (!(data->state & ST_PAUSE)) {
1462 			SEND_PSTR(cif, data->id);
1463 			data->state |= ST_PAUSE;
1464 			chip->openstreams--;
1465 		}
1466 		break;
1467 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1468 		if (data->state & ST_PAUSE) {
1469 			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1470 			data->state &= ~ST_PAUSE;
1471 			chip->openstreams++;
1472 		}
1473 		break;
1474 	default:
1475 		spin_unlock(&chip->lock);
1476 		return -EINVAL;
1477 	}
1478 	spin_unlock(&chip->lock);
1479 	return 0;
1480 }
1481 
1482 static int snd_riptide_prepare(struct snd_pcm_substream *substream)
1483 {
1484 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1485 	struct snd_pcm_runtime *runtime = substream->runtime;
1486 	struct snd_sg_buf *sgbuf = snd_pcm_substream_sgbuf(substream);
1487 	struct pcmhw *data = get_pcmhwdev(substream);
1488 	struct cmdif *cif = chip->cif;
1489 	unsigned char *lbuspath = NULL;
1490 	unsigned int rate, channels;
1491 	int err = 0;
1492 	snd_pcm_format_t format;
1493 
1494 	snd_assert(cif && data, return -EINVAL);
1495 
1496 	snd_printdd("prepare id %d ch: %d f:0x%x r:%d\n", data->id,
1497 		    runtime->channels, runtime->format, runtime->rate);
1498 
1499 	spin_lock_irq(&chip->lock);
1500 	channels = runtime->channels;
1501 	format = runtime->format;
1502 	rate = runtime->rate;
1503 	switch (channels) {
1504 	case 1:
1505 		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1506 			lbuspath = data->paths.noconv;
1507 		else
1508 			lbuspath = data->paths.mono;
1509 		break;
1510 	case 2:
1511 		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1512 			lbuspath = data->paths.noconv;
1513 		else
1514 			lbuspath = data->paths.stereo;
1515 		break;
1516 	}
1517 	snd_printdd("use sgdlist at 0x%p and buffer at 0x%p\n",
1518 		    data->sgdlist.area, sgbuf);
1519 	if (data->sgdlist.area && sgbuf) {
1520 		unsigned int i, j, size, pages, f, pt, period;
1521 		struct sgd *c, *p = NULL;
1522 
1523 		size = frames_to_bytes(runtime, runtime->buffer_size);
1524 		period = frames_to_bytes(runtime, runtime->period_size);
1525 		f = PAGE_SIZE;
1526 		while ((size + (f >> 1) - 1) <= (f << 7) && (f << 1) > period)
1527 			f = f >> 1;
1528 		pages = (size + f - 1) / f;
1529 		data->size = size;
1530 		data->pages = pages;
1531 		snd_printdd
1532 		    ("create sgd size: 0x%x pages %d of size 0x%x for period 0x%x\n",
1533 		     size, pages, f, period);
1534 		pt = 0;
1535 		j = 0;
1536 		for (i = 0; i < pages; i++) {
1537 			c = &data->sgdbuf[i];
1538 			if (p)
1539 				p->dwNextLink = cpu_to_le32(data->sgdlist.addr +
1540 							    (i *
1541 							     sizeof(struct
1542 								    sgd)));
1543 			c->dwNextLink = cpu_to_le32(data->sgdlist.addr);
1544 			c->dwSegPtrPhys =
1545 			    cpu_to_le32(sgbuf->table[j].addr + pt);
1546 			pt = (pt + f) % PAGE_SIZE;
1547 			if (pt == 0)
1548 				j++;
1549 			c->dwSegLen = cpu_to_le32(f);
1550 			c->dwStat_Ctl =
1551 			    cpu_to_le32(IEOB_ENABLE | IEOS_ENABLE |
1552 					IEOC_ENABLE);
1553 			p = c;
1554 			size -= f;
1555 		}
1556 		data->sgdbuf[i].dwSegLen = cpu_to_le32(size);
1557 	}
1558 	if (lbuspath && lbuspath != data->lbuspath) {
1559 		if (data->lbuspath)
1560 			freelbuspath(cif, data->source, data->lbuspath);
1561 		alloclbuspath(cif, data->source, lbuspath,
1562 			      &data->mixer, data->intdec);
1563 		data->lbuspath = lbuspath;
1564 		data->rate = 0;
1565 	}
1566 	if (data->rate != rate || data->format != format ||
1567 	    data->channels != channels) {
1568 		data->rate = rate;
1569 		data->format = format;
1570 		data->channels = channels;
1571 		if (setsampleformat
1572 		    (cif, data->mixer, data->id, channels, format)
1573 		    || setsamplerate(cif, data->intdec, rate))
1574 			err = -EIO;
1575 	}
1576 	spin_unlock_irq(&chip->lock);
1577 	return err;
1578 }
1579 
1580 static int
1581 snd_riptide_hw_params(struct snd_pcm_substream *substream,
1582 		      struct snd_pcm_hw_params *hw_params)
1583 {
1584 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1585 	struct pcmhw *data = get_pcmhwdev(substream);
1586 	struct snd_dma_buffer *sgdlist = &data->sgdlist;
1587 	int err;
1588 
1589 	snd_printdd("hw params id %d (sgdlist: 0x%p 0x%lx %d)\n", data->id,
1590 		    sgdlist->area, (unsigned long)sgdlist->addr,
1591 		    (int)sgdlist->bytes);
1592 	if (sgdlist->area)
1593 		snd_dma_free_pages(sgdlist);
1594 	if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
1595 				       snd_dma_pci_data(chip->pci),
1596 				       sizeof(struct sgd) * (DESC_MAX_MASK + 1),
1597 				       sgdlist)) < 0) {
1598 		snd_printk(KERN_ERR "Riptide: failed to alloc %d dma bytes\n",
1599 			   (int)sizeof(struct sgd) * (DESC_MAX_MASK + 1));
1600 		return err;
1601 	}
1602 	data->sgdbuf = (struct sgd *)sgdlist->area;
1603 	return snd_pcm_lib_malloc_pages(substream,
1604 					params_buffer_bytes(hw_params));
1605 }
1606 
1607 static int snd_riptide_hw_free(struct snd_pcm_substream *substream)
1608 {
1609 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1610 	struct pcmhw *data = get_pcmhwdev(substream);
1611 	struct cmdif *cif = chip->cif;
1612 
1613 	if (cif && data) {
1614 		if (data->lbuspath)
1615 			freelbuspath(cif, data->source, data->lbuspath);
1616 		data->lbuspath = NULL;
1617 		data->source = 0xff;
1618 		data->intdec[0] = 0xff;
1619 		data->intdec[1] = 0xff;
1620 
1621 		if (data->sgdlist.area) {
1622 			snd_dma_free_pages(&data->sgdlist);
1623 			data->sgdlist.area = NULL;
1624 		}
1625 	}
1626 	return snd_pcm_lib_free_pages(substream);
1627 }
1628 
1629 static int snd_riptide_playback_open(struct snd_pcm_substream *substream)
1630 {
1631 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1632 	struct snd_pcm_runtime *runtime = substream->runtime;
1633 	struct pcmhw *data;
1634 	int index = substream->number;
1635 
1636 	chip->playback_substream[index] = substream;
1637 	runtime->hw = snd_riptide_playback;
1638 	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
1639 	data->paths = lbus_play_paths[index];
1640 	data->id = play_ids[index];
1641 	data->source = play_sources[index];
1642 	data->intdec[0] = 0xff;
1643 	data->intdec[1] = 0xff;
1644 	data->state = ST_STOP;
1645 	runtime->private_data = data;
1646 	return snd_pcm_hw_constraint_integer(runtime,
1647 					     SNDRV_PCM_HW_PARAM_PERIODS);
1648 }
1649 
1650 static int snd_riptide_capture_open(struct snd_pcm_substream *substream)
1651 {
1652 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1653 	struct snd_pcm_runtime *runtime = substream->runtime;
1654 	struct pcmhw *data;
1655 
1656 	chip->capture_substream = substream;
1657 	runtime->hw = snd_riptide_capture;
1658 	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
1659 	data->paths = lbus_rec_path;
1660 	data->id = PADC;
1661 	data->source = ACLNK2PADC;
1662 	data->intdec[0] = 0xff;
1663 	data->intdec[1] = 0xff;
1664 	data->state = ST_STOP;
1665 	runtime->private_data = data;
1666 	return snd_pcm_hw_constraint_integer(runtime,
1667 					     SNDRV_PCM_HW_PARAM_PERIODS);
1668 }
1669 
1670 static int snd_riptide_playback_close(struct snd_pcm_substream *substream)
1671 {
1672 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1673 	struct pcmhw *data = get_pcmhwdev(substream);
1674 	int index = substream->number;
1675 
1676 	substream->runtime->private_data = NULL;
1677 	chip->playback_substream[index] = NULL;
1678 	kfree(data);
1679 	return 0;
1680 }
1681 
1682 static int snd_riptide_capture_close(struct snd_pcm_substream *substream)
1683 {
1684 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1685 	struct pcmhw *data = get_pcmhwdev(substream);
1686 
1687 	substream->runtime->private_data = NULL;
1688 	chip->capture_substream = NULL;
1689 	kfree(data);
1690 	return 0;
1691 }
1692 
1693 static struct snd_pcm_ops snd_riptide_playback_ops = {
1694 	.open = snd_riptide_playback_open,
1695 	.close = snd_riptide_playback_close,
1696 	.ioctl = snd_pcm_lib_ioctl,
1697 	.hw_params = snd_riptide_hw_params,
1698 	.hw_free = snd_riptide_hw_free,
1699 	.prepare = snd_riptide_prepare,
1700 	.page = snd_pcm_sgbuf_ops_page,
1701 	.trigger = snd_riptide_trigger,
1702 	.pointer = snd_riptide_pointer,
1703 };
1704 static struct snd_pcm_ops snd_riptide_capture_ops = {
1705 	.open = snd_riptide_capture_open,
1706 	.close = snd_riptide_capture_close,
1707 	.ioctl = snd_pcm_lib_ioctl,
1708 	.hw_params = snd_riptide_hw_params,
1709 	.hw_free = snd_riptide_hw_free,
1710 	.prepare = snd_riptide_prepare,
1711 	.page = snd_pcm_sgbuf_ops_page,
1712 	.trigger = snd_riptide_trigger,
1713 	.pointer = snd_riptide_pointer,
1714 };
1715 
1716 static int __devinit
1717 snd_riptide_pcm(struct snd_riptide *chip, int device, struct snd_pcm **rpcm)
1718 {
1719 	struct snd_pcm *pcm;
1720 	int err;
1721 
1722 	if (rpcm)
1723 		*rpcm = NULL;
1724 	if ((err =
1725 	     snd_pcm_new(chip->card, "RIPTIDE", device, PLAYBACK_SUBSTREAMS, 1,
1726 			 &pcm)) < 0)
1727 		return err;
1728 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1729 			&snd_riptide_playback_ops);
1730 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1731 			&snd_riptide_capture_ops);
1732 	pcm->private_data = chip;
1733 	pcm->info_flags = 0;
1734 	strcpy(pcm->name, "RIPTIDE");
1735 	chip->pcm = pcm;
1736 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1737 					      snd_dma_pci_data(chip->pci),
1738 					      64 * 1024, 128 * 1024);
1739 	if (rpcm)
1740 		*rpcm = pcm;
1741 	return 0;
1742 }
1743 
1744 static irqreturn_t
1745 snd_riptide_interrupt(int irq, void *dev_id)
1746 {
1747 	struct snd_riptide *chip = dev_id;
1748 	struct cmdif *cif = chip->cif;
1749 
1750 	if (cif) {
1751 		chip->received_irqs++;
1752 		if (IS_EOBIRQ(cif->hwport) || IS_EOSIRQ(cif->hwport) ||
1753 		    IS_EOCIRQ(cif->hwport)) {
1754 			chip->handled_irqs++;
1755 			tasklet_hi_schedule(&chip->riptide_tq);
1756 		}
1757 		if (chip->rmidi && IS_MPUIRQ(cif->hwport)) {
1758 			chip->handled_irqs++;
1759 			snd_mpu401_uart_interrupt(irq,
1760 						  chip->rmidi->private_data);
1761 		}
1762 		SET_AIACK(cif->hwport);
1763 	}
1764 	return IRQ_HANDLED;
1765 }
1766 
1767 static void
1768 snd_riptide_codec_write(struct snd_ac97 *ac97, unsigned short reg,
1769 			unsigned short val)
1770 {
1771 	struct snd_riptide *chip = ac97->private_data;
1772 	struct cmdif *cif = chip->cif;
1773 	union cmdret rptr = CMDRET_ZERO;
1774 	int i = 0;
1775 
1776 	snd_assert(cif, return);
1777 
1778 	snd_printdd("Write AC97 reg 0x%x 0x%x\n", reg, val);
1779 	do {
1780 		SEND_SACR(cif, val, reg);
1781 		SEND_RACR(cif, reg, &rptr);
1782 	} while (rptr.retwords[1] != val && i++ < MAX_WRITE_RETRY);
1783 	if (i == MAX_WRITE_RETRY)
1784 		snd_printdd("Write AC97 reg failed\n");
1785 }
1786 
1787 static unsigned short snd_riptide_codec_read(struct snd_ac97 *ac97,
1788 					     unsigned short reg)
1789 {
1790 	struct snd_riptide *chip = ac97->private_data;
1791 	struct cmdif *cif = chip->cif;
1792 	union cmdret rptr = CMDRET_ZERO;
1793 
1794 	snd_assert(cif, return 0);
1795 
1796 	if (SEND_RACR(cif, reg, &rptr) != 0)
1797 		SEND_RACR(cif, reg, &rptr);
1798 	snd_printdd("Read AC97 reg 0x%x got 0x%x\n", reg, rptr.retwords[1]);
1799 	return rptr.retwords[1];
1800 }
1801 
1802 static int snd_riptide_initialize(struct snd_riptide *chip)
1803 {
1804 	struct cmdif *cif;
1805 	unsigned int device_id;
1806 	int err;
1807 
1808 	snd_assert(chip, return -EINVAL);
1809 
1810 	cif = chip->cif;
1811 	if (!cif) {
1812 		if ((cif = kzalloc(sizeof(struct cmdif), GFP_KERNEL)) == NULL)
1813 			return -ENOMEM;
1814 		cif->hwport = (struct riptideport *)chip->port;
1815 		spin_lock_init(&cif->lock);
1816 		chip->cif = cif;
1817 	}
1818 	cif->is_reset = 0;
1819 	if ((err = riptide_reset(cif, chip)) != 0)
1820 		return err;
1821 	device_id = chip->device_id;
1822 	switch (device_id) {
1823 	case 0x4310:
1824 	case 0x4320:
1825 	case 0x4330:
1826 		snd_printdd("Modem enable?\n");
1827 		SEND_SETDPLL(cif);
1828 		break;
1829 	}
1830 	snd_printdd("Enabling MPU IRQs\n");
1831 	if (chip->rmidi)
1832 		SET_EMPUIRQ(cif->hwport);
1833 	return err;
1834 }
1835 
1836 static int snd_riptide_free(struct snd_riptide *chip)
1837 {
1838 	struct cmdif *cif;
1839 
1840 	snd_assert(chip, return 0);
1841 
1842 	if ((cif = chip->cif)) {
1843 		SET_GRESET(cif->hwport);
1844 		udelay(100);
1845 		UNSET_GRESET(cif->hwport);
1846 		kfree(chip->cif);
1847 	}
1848 	if (chip->irq >= 0)
1849 		free_irq(chip->irq, chip);
1850 	if (chip->fw_entry)
1851 		release_firmware(chip->fw_entry);
1852 	release_and_free_resource(chip->res_port);
1853 	kfree(chip);
1854 	return 0;
1855 }
1856 
1857 static int snd_riptide_dev_free(struct snd_device *device)
1858 {
1859 	struct snd_riptide *chip = device->device_data;
1860 
1861 	return snd_riptide_free(chip);
1862 }
1863 
1864 static int __devinit
1865 snd_riptide_create(struct snd_card *card, struct pci_dev *pci,
1866 		   struct snd_riptide **rchip)
1867 {
1868 	struct snd_riptide *chip;
1869 	struct riptideport *hwport;
1870 	int err;
1871 	static struct snd_device_ops ops = {
1872 		.dev_free = snd_riptide_dev_free,
1873 	};
1874 
1875 	*rchip = NULL;
1876 	if ((err = pci_enable_device(pci)) < 0)
1877 		return err;
1878 	if (!(chip = kzalloc(sizeof(struct snd_riptide), GFP_KERNEL)))
1879 		return -ENOMEM;
1880 
1881 	spin_lock_init(&chip->lock);
1882 	chip->card = card;
1883 	chip->pci = pci;
1884 	chip->irq = -1;
1885 	chip->openstreams = 0;
1886 	chip->port = pci_resource_start(pci, 0);
1887 	chip->received_irqs = 0;
1888 	chip->handled_irqs = 0;
1889 	chip->cif = NULL;
1890 	tasklet_init(&chip->riptide_tq, riptide_handleirq, (unsigned long)chip);
1891 
1892 	if ((chip->res_port =
1893 	     request_region(chip->port, 64, "RIPTIDE")) == NULL) {
1894 		snd_printk(KERN_ERR
1895 			   "Riptide: unable to grab region 0x%lx-0x%lx\n",
1896 			   chip->port, chip->port + 64 - 1);
1897 		snd_riptide_free(chip);
1898 		return -EBUSY;
1899 	}
1900 	hwport = (struct riptideport *)chip->port;
1901 	UNSET_AIE(hwport);
1902 
1903 	if (request_irq(pci->irq, snd_riptide_interrupt, IRQF_SHARED,
1904 			"RIPTIDE", chip)) {
1905 		snd_printk(KERN_ERR "Riptide: unable to grab IRQ %d\n",
1906 			   pci->irq);
1907 		snd_riptide_free(chip);
1908 		return -EBUSY;
1909 	}
1910 	chip->irq = pci->irq;
1911 	chip->device_id = pci->device;
1912 	pci_set_master(pci);
1913 	if ((err = snd_riptide_initialize(chip)) < 0) {
1914 		snd_riptide_free(chip);
1915 		return err;
1916 	}
1917 
1918 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1919 		snd_riptide_free(chip);
1920 		return err;
1921 	}
1922 
1923 	snd_card_set_dev(card, &pci->dev);
1924 
1925 	*rchip = chip;
1926 	return 0;
1927 }
1928 
1929 static void
1930 snd_riptide_proc_read(struct snd_info_entry *entry,
1931 		      struct snd_info_buffer *buffer)
1932 {
1933 	struct snd_riptide *chip = entry->private_data;
1934 	struct pcmhw *data;
1935 	int i;
1936 	struct cmdif *cif = NULL;
1937 	unsigned char p[256];
1938 	unsigned short rval = 0, lval = 0;
1939 	unsigned int rate;
1940 
1941 	if (!chip)
1942 		return;
1943 
1944 	snd_iprintf(buffer, "%s\n\n", chip->card->longname);
1945 	snd_iprintf(buffer, "Device ID: 0x%x\nReceived IRQs: (%ld)%ld\nPorts:",
1946 		    chip->device_id, chip->handled_irqs, chip->received_irqs);
1947 	for (i = 0; i < 64; i += 4)
1948 		snd_iprintf(buffer, "%c%02x: %08x",
1949 			    (i % 16) ? ' ' : '\n', i, inl(chip->port + i));
1950 	if ((cif = chip->cif)) {
1951 		snd_iprintf(buffer,
1952 			    "\nVersion: ASIC: %d CODEC: %d AUXDSP: %d PROG: %d",
1953 			    chip->firmware.firmware.ASIC,
1954 			    chip->firmware.firmware.CODEC,
1955 			    chip->firmware.firmware.AUXDSP,
1956 			    chip->firmware.firmware.PROG);
1957 		snd_iprintf(buffer, "\nDigital mixer:");
1958 		for (i = 0; i < 12; i++) {
1959 			getmixer(cif, i, &rval, &lval);
1960 			snd_iprintf(buffer, "\n %d: %d %d", i, rval, lval);
1961 		}
1962 		snd_iprintf(buffer,
1963 			    "\nARM Commands num: %d failed: %d time: %d max: %d min: %d",
1964 			    cif->cmdcnt, cif->errcnt,
1965 			    cif->cmdtime, cif->cmdtimemax, cif->cmdtimemin);
1966 	}
1967 	snd_iprintf(buffer, "\nOpen streams %d:\n", chip->openstreams);
1968 	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++) {
1969 		if (chip->playback_substream[i]
1970 		    && chip->playback_substream[i]->runtime
1971 		    && (data =
1972 			chip->playback_substream[i]->runtime->private_data)) {
1973 			snd_iprintf(buffer,
1974 				    "stream: %d mixer: %d source: %d (%d,%d)\n",
1975 				    data->id, data->mixer, data->source,
1976 				    data->intdec[0], data->intdec[1]);
1977 			if (!(getsamplerate(cif, data->intdec, &rate)))
1978 				snd_iprintf(buffer, "rate: %d\n", rate);
1979 		}
1980 	}
1981 	if (chip->capture_substream
1982 	    && chip->capture_substream->runtime
1983 	    && (data = chip->capture_substream->runtime->private_data)) {
1984 		snd_iprintf(buffer,
1985 			    "stream: %d mixer: %d source: %d (%d,%d)\n",
1986 			    data->id, data->mixer,
1987 			    data->source, data->intdec[0], data->intdec[1]);
1988 		if (!(getsamplerate(cif, data->intdec, &rate)))
1989 			snd_iprintf(buffer, "rate: %d\n", rate);
1990 	}
1991 	snd_iprintf(buffer, "Paths:\n");
1992 	i = getpaths(cif, p);
1993 	while (i--) {
1994 		snd_iprintf(buffer, "%x->%x ", p[i - 1], p[i]);
1995 		i--;
1996 	}
1997 	snd_iprintf(buffer, "\n");
1998 }
1999 
2000 static void __devinit snd_riptide_proc_init(struct snd_riptide *chip)
2001 {
2002 	struct snd_info_entry *entry;
2003 
2004 	if (!snd_card_proc_new(chip->card, "riptide", &entry))
2005 		snd_info_set_text_ops(entry, chip, snd_riptide_proc_read);
2006 }
2007 
2008 static int __devinit snd_riptide_mixer(struct snd_riptide *chip)
2009 {
2010 	struct snd_ac97_bus *pbus;
2011 	struct snd_ac97_template ac97;
2012 	int err = 0;
2013 	static struct snd_ac97_bus_ops ops = {
2014 		.write = snd_riptide_codec_write,
2015 		.read = snd_riptide_codec_read,
2016 	};
2017 
2018 	memset(&ac97, 0, sizeof(ac97));
2019 	ac97.private_data = chip;
2020 	ac97.scaps = AC97_SCAP_SKIP_MODEM;
2021 
2022 	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
2023 		return err;
2024 
2025 	chip->ac97_bus = pbus;
2026 	ac97.pci = chip->pci;
2027 	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
2028 		return err;
2029 	return err;
2030 }
2031 
2032 #ifdef SUPPORT_JOYSTICK
2033 static int have_joystick;
2034 static struct pci_dev *riptide_gameport_pci;
2035 static struct gameport *riptide_gameport;
2036 
2037 static int __devinit
2038 snd_riptide_joystick_probe(struct pci_dev *pci, const struct pci_device_id *id)
2039 {
2040 	static int dev;
2041 
2042 	if (dev >= SNDRV_CARDS)
2043 		return -ENODEV;
2044 	if (!enable[dev]) {
2045 		dev++;
2046 		return -ENOENT;
2047 	}
2048 
2049 	if (joystick_port[dev]) {
2050 		riptide_gameport = gameport_allocate_port();
2051 		if (riptide_gameport) {
2052 			if (!request_region
2053 			    (joystick_port[dev], 8, "Riptide gameport")) {
2054 				snd_printk(KERN_WARNING
2055 					   "Riptide: cannot grab gameport 0x%x\n",
2056 					   joystick_port[dev]);
2057 				gameport_free_port(riptide_gameport);
2058 				riptide_gameport = NULL;
2059 			} else {
2060 				riptide_gameport_pci = pci;
2061 				riptide_gameport->io = joystick_port[dev];
2062 				gameport_register_port(riptide_gameport);
2063 			}
2064 		}
2065 	}
2066 	dev++;
2067 	return 0;
2068 }
2069 
2070 static void __devexit snd_riptide_joystick_remove(struct pci_dev *pci)
2071 {
2072 	if (riptide_gameport) {
2073 		if (riptide_gameport_pci == pci) {
2074 			release_region(riptide_gameport->io, 8);
2075 			riptide_gameport_pci = NULL;
2076 			gameport_unregister_port(riptide_gameport);
2077 			riptide_gameport = NULL;
2078 		}
2079 	}
2080 }
2081 #endif
2082 
2083 static int __devinit
2084 snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2085 {
2086 	static int dev;
2087 	struct snd_card *card;
2088 	struct snd_riptide *chip;
2089 	unsigned short addr;
2090 	int err = 0;
2091 
2092 	if (dev >= SNDRV_CARDS)
2093 		return -ENODEV;
2094 	if (!enable[dev]) {
2095 		dev++;
2096 		return -ENOENT;
2097 	}
2098 
2099 	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2100 	if (card == NULL)
2101 		return -ENOMEM;
2102 	if ((err = snd_riptide_create(card, pci, &chip)) < 0) {
2103 		snd_card_free(card);
2104 		return err;
2105 	}
2106 	card->private_data = chip;
2107 	if ((err = snd_riptide_pcm(chip, 0, NULL)) < 0) {
2108 		snd_card_free(card);
2109 		return err;
2110 	}
2111 	if ((err = snd_riptide_mixer(chip)) < 0) {
2112 		snd_card_free(card);
2113 		return err;
2114 	}
2115 	pci_write_config_word(chip->pci, PCI_EXT_Legacy_Mask, LEGACY_ENABLE_ALL
2116 			      | (opl3_port[dev] ? LEGACY_ENABLE_FM : 0)
2117 #ifdef SUPPORT_JOYSTICK
2118 			      | (joystick_port[dev] ? LEGACY_ENABLE_GAMEPORT :
2119 				 0)
2120 #endif
2121 			      | (mpu_port[dev]
2122 				 ? (LEGACY_ENABLE_MPU_INT | LEGACY_ENABLE_MPU) :
2123 				 0)
2124 			      | ((chip->irq << 4) & 0xF0));
2125 	if ((addr = mpu_port[dev]) != 0) {
2126 		pci_write_config_word(chip->pci, PCI_EXT_MPU_Base, addr);
2127 		if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_RIPTIDE,
2128 					       addr, 0, chip->irq, 0,
2129 					       &chip->rmidi)) < 0)
2130 			snd_printk(KERN_WARNING
2131 				   "Riptide: Can't Allocate MPU at 0x%x\n",
2132 				   addr);
2133 		else
2134 			chip->mpuaddr = addr;
2135 	}
2136 	if ((addr = opl3_port[dev]) != 0) {
2137 		pci_write_config_word(chip->pci, PCI_EXT_FM_Base, addr);
2138 		if ((err = snd_opl3_create(card, addr, addr + 2,
2139 					   OPL3_HW_RIPTIDE, 0,
2140 					   &chip->opl3)) < 0)
2141 			snd_printk(KERN_WARNING
2142 				   "Riptide: Can't Allocate OPL3 at 0x%x\n",
2143 				   addr);
2144 		else {
2145 			chip->opladdr = addr;
2146 			if ((err =
2147 			     snd_opl3_hwdep_new(chip->opl3, 0, 1, NULL)) < 0)
2148 				snd_printk(KERN_WARNING
2149 					   "Riptide: Can't Allocate OPL3-HWDEP\n");
2150 		}
2151 	}
2152 #ifdef SUPPORT_JOYSTICK
2153 	if ((addr = joystick_port[dev]) != 0) {
2154 		pci_write_config_word(chip->pci, PCI_EXT_Game_Base, addr);
2155 		chip->gameaddr = addr;
2156 	}
2157 #endif
2158 
2159 	strcpy(card->driver, "RIPTIDE");
2160 	strcpy(card->shortname, "Riptide");
2161 #ifdef SUPPORT_JOYSTICK
2162 	snprintf(card->longname, sizeof(card->longname),
2163 		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x gameport 0x%x",
2164 		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
2165 		 chip->opladdr, chip->gameaddr);
2166 #else
2167 	snprintf(card->longname, sizeof(card->longname),
2168 		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x",
2169 		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
2170 		 chip->opladdr);
2171 #endif
2172 	snd_riptide_proc_init(chip);
2173 	if ((err = snd_card_register(card)) < 0) {
2174 		snd_card_free(card);
2175 		return err;
2176 	}
2177 	pci_set_drvdata(pci, card);
2178 	dev++;
2179 	return 0;
2180 }
2181 
2182 static void __devexit snd_card_riptide_remove(struct pci_dev *pci)
2183 {
2184 	snd_card_free(pci_get_drvdata(pci));
2185 	pci_set_drvdata(pci, NULL);
2186 }
2187 
2188 static struct pci_driver driver = {
2189 	.name = "RIPTIDE",
2190 	.id_table = snd_riptide_ids,
2191 	.probe = snd_card_riptide_probe,
2192 	.remove = __devexit_p(snd_card_riptide_remove),
2193 #ifdef CONFIG_PM
2194 	.suspend = riptide_suspend,
2195 	.resume = riptide_resume,
2196 #endif
2197 };
2198 
2199 #ifdef SUPPORT_JOYSTICK
2200 static struct pci_driver joystick_driver = {
2201 	.name = "Riptide Joystick",
2202 	.id_table = snd_riptide_joystick_ids,
2203 	.probe = snd_riptide_joystick_probe,
2204 	.remove = __devexit_p(snd_riptide_joystick_remove),
2205 };
2206 #endif
2207 
2208 static int __init alsa_card_riptide_init(void)
2209 {
2210 	int err;
2211 	if ((err = pci_register_driver(&driver)) < 0)
2212 		return err;
2213 #if defined(SUPPORT_JOYSTICK)
2214 	if (pci_register_driver(&joystick_driver) < 0) {
2215 		have_joystick = 0;
2216 		snd_printk(KERN_INFO "no joystick found\n");
2217 	} else
2218 		have_joystick = 1;
2219 #endif
2220 	return 0;
2221 }
2222 
2223 static void __exit alsa_card_riptide_exit(void)
2224 {
2225 	pci_unregister_driver(&driver);
2226 #if defined(SUPPORT_JOYSTICK)
2227 	if (have_joystick)
2228 		pci_unregister_driver(&joystick_driver);
2229 #endif
2230 }
2231 
2232 module_init(alsa_card_riptide_init);
2233 module_exit(alsa_card_riptide_exit);
2234