xref: /openbmc/linux/sound/pci/riptide/riptide.c (revision 6c9111bc)
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  *   Driver for the Conexant Riptide Soundchip
4  *
5  *	Copyright (c) 2004 Peter Gruber <nokos@gmx.net>
6  */
7 /*
8   History:
9    - 02/15/2004 first release
10 
11   This Driver is based on the OSS Driver version from Linuxant (riptide-0.6lnxtbeta03111100)
12   credits from the original files:
13 
14   MODULE NAME:        cnxt_rt.h
15   AUTHOR:             K. Lazarev  (Transcribed by KNL)
16   HISTORY:         Major Revision               Date        By
17             -----------------------------     --------     -----
18             Created                           02/1/2000     KNL
19 
20   MODULE NAME:     int_mdl.c
21   AUTHOR:          Konstantin Lazarev    (Transcribed by KNL)
22   HISTORY:         Major Revision               Date        By
23             -----------------------------     --------     -----
24             Created                           10/01/99      KNL
25 
26   MODULE NAME:        riptide.h
27   AUTHOR:             O. Druzhinin  (Transcribed by OLD)
28   HISTORY:         Major Revision               Date        By
29             -----------------------------     --------     -----
30             Created                           10/16/97      OLD
31 
32   MODULE NAME:        Rp_Cmdif.cpp
33   AUTHOR:             O. Druzhinin  (Transcribed by OLD)
34                       K. Lazarev    (Transcribed by KNL)
35   HISTORY:         Major Revision               Date        By
36             -----------------------------     --------     -----
37             Adopted from NT4 driver            6/22/99      OLD
38             Ported to Linux                    9/01/99      KNL
39 
40   MODULE NAME:        rt_hw.c
41   AUTHOR:             O. Druzhinin  (Transcribed by OLD)
42                       C. Lazarev    (Transcribed by CNL)
43   HISTORY:         Major Revision               Date        By
44             -----------------------------     --------     -----
45             Created                           11/18/97      OLD
46             Hardware functions for RipTide    11/24/97      CNL
47             (ES1) are coded
48             Hardware functions for RipTide    12/24/97      CNL
49             (A0) are coded
50             Hardware functions for RipTide    03/20/98      CNL
51             (A1) are coded
52             Boot loader is included           05/07/98      CNL
53             Redesigned for WDM                07/27/98      CNL
54             Redesigned for Linux              09/01/99      CNL
55 
56   MODULE NAME:        rt_hw.h
57   AUTHOR:             C. Lazarev    (Transcribed by CNL)
58   HISTORY:         Major Revision               Date        By
59             -----------------------------     --------     -----
60             Created                           11/18/97      CNL
61 
62   MODULE NAME:     rt_mdl.c
63   AUTHOR:          Konstantin Lazarev    (Transcribed by KNL)
64   HISTORY:         Major Revision               Date        By
65             -----------------------------     --------     -----
66             Created                           10/01/99      KNL
67 
68   MODULE NAME:        mixer.h
69   AUTHOR:             K. Kenney
70   HISTORY:         Major Revision                   Date          By
71             -----------------------------          --------     -----
72             Created from MS W95 Sample             11/28/95      KRS
73             RipTide                                10/15/97      KRS
74             Adopted for Windows NT driver          01/20/98      CNL
75 */
76 
77 #include <linux/delay.h>
78 #include <linux/init.h>
79 #include <linux/interrupt.h>
80 #include <linux/pci.h>
81 #include <linux/slab.h>
82 #include <linux/wait.h>
83 #include <linux/gameport.h>
84 #include <linux/device.h>
85 #include <linux/firmware.h>
86 #include <linux/kernel.h>
87 #include <linux/module.h>
88 #include <linux/io.h>
89 #include <sound/core.h>
90 #include <sound/info.h>
91 #include <sound/control.h>
92 #include <sound/pcm.h>
93 #include <sound/pcm_params.h>
94 #include <sound/ac97_codec.h>
95 #include <sound/mpu401.h>
96 #include <sound/opl3.h>
97 #include <sound/initval.h>
98 
99 #if IS_REACHABLE(CONFIG_GAMEPORT)
100 #define SUPPORT_JOYSTICK 1
101 #endif
102 
103 MODULE_AUTHOR("Peter Gruber <nokos@gmx.net>");
104 MODULE_DESCRIPTION("riptide");
105 MODULE_LICENSE("GPL");
106 MODULE_SUPPORTED_DEVICE("{{Conexant,Riptide}}");
107 MODULE_FIRMWARE("riptide.hex");
108 
109 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
110 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
111 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
112 
113 #ifdef SUPPORT_JOYSTICK
114 static int joystick_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x200 };
115 #endif
116 static int mpu_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x330 };
117 static int opl3_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x388 };
118 
119 module_param_array(index, int, NULL, 0444);
120 MODULE_PARM_DESC(index, "Index value for Riptide soundcard.");
121 module_param_array(id, charp, NULL, 0444);
122 MODULE_PARM_DESC(id, "ID string for Riptide soundcard.");
123 module_param_array(enable, bool, NULL, 0444);
124 MODULE_PARM_DESC(enable, "Enable Riptide soundcard.");
125 #ifdef SUPPORT_JOYSTICK
126 module_param_hw_array(joystick_port, int, ioport, NULL, 0444);
127 MODULE_PARM_DESC(joystick_port, "Joystick port # for Riptide soundcard.");
128 #endif
129 module_param_hw_array(mpu_port, int, ioport, NULL, 0444);
130 MODULE_PARM_DESC(mpu_port, "MPU401 port # for Riptide driver.");
131 module_param_hw_array(opl3_port, int, ioport, NULL, 0444);
132 MODULE_PARM_DESC(opl3_port, "OPL3 port # for Riptide driver.");
133 
134 /*
135  */
136 
137 #define MPU401_HW_RIPTIDE MPU401_HW_MPU401
138 #define OPL3_HW_RIPTIDE   OPL3_HW_OPL3
139 
140 #define PCI_EXT_CapId       0x40
141 #define PCI_EXT_NextCapPrt  0x41
142 #define PCI_EXT_PWMC        0x42
143 #define PCI_EXT_PWSCR       0x44
144 #define PCI_EXT_Data00      0x46
145 #define PCI_EXT_PMSCR_BSE   0x47
146 #define PCI_EXT_SB_Base     0x48
147 #define PCI_EXT_FM_Base     0x4a
148 #define PCI_EXT_MPU_Base    0x4C
149 #define PCI_EXT_Game_Base   0x4E
150 #define PCI_EXT_Legacy_Mask 0x50
151 #define PCI_EXT_AsicRev     0x52
152 #define PCI_EXT_Reserved3   0x53
153 
154 #define LEGACY_ENABLE_ALL      0x8000	/* legacy device options */
155 #define LEGACY_ENABLE_SB       0x4000
156 #define LEGACY_ENABLE_FM       0x2000
157 #define LEGACY_ENABLE_MPU_INT  0x1000
158 #define LEGACY_ENABLE_MPU      0x0800
159 #define LEGACY_ENABLE_GAMEPORT 0x0400
160 
161 #define MAX_WRITE_RETRY  10	/* cmd interface limits */
162 #define MAX_ERROR_COUNT  10
163 #define CMDIF_TIMEOUT    50000
164 #define RESET_TRIES      5
165 
166 #define READ_PORT_ULONG(p)     inl((unsigned long)&(p))
167 #define WRITE_PORT_ULONG(p,x)  outl(x,(unsigned long)&(p))
168 
169 #define READ_AUDIO_CONTROL(p)     READ_PORT_ULONG(p->audio_control)
170 #define WRITE_AUDIO_CONTROL(p,x)  WRITE_PORT_ULONG(p->audio_control,x)
171 #define UMASK_AUDIO_CONTROL(p,x)  WRITE_PORT_ULONG(p->audio_control,READ_PORT_ULONG(p->audio_control)|x)
172 #define MASK_AUDIO_CONTROL(p,x)   WRITE_PORT_ULONG(p->audio_control,READ_PORT_ULONG(p->audio_control)&x)
173 #define READ_AUDIO_STATUS(p)      READ_PORT_ULONG(p->audio_status)
174 
175 #define SET_GRESET(p)     UMASK_AUDIO_CONTROL(p,0x0001)	/* global reset switch */
176 #define UNSET_GRESET(p)   MASK_AUDIO_CONTROL(p,~0x0001)
177 #define SET_AIE(p)        UMASK_AUDIO_CONTROL(p,0x0004)	/* interrupt enable */
178 #define UNSET_AIE(p)      MASK_AUDIO_CONTROL(p,~0x0004)
179 #define SET_AIACK(p)      UMASK_AUDIO_CONTROL(p,0x0008)	/* interrupt acknowledge */
180 #define UNSET_AIACKT(p)   MASKAUDIO_CONTROL(p,~0x0008)
181 #define SET_ECMDAE(p)     UMASK_AUDIO_CONTROL(p,0x0010)
182 #define UNSET_ECMDAE(p)   MASK_AUDIO_CONTROL(p,~0x0010)
183 #define SET_ECMDBE(p)     UMASK_AUDIO_CONTROL(p,0x0020)
184 #define UNSET_ECMDBE(p)   MASK_AUDIO_CONTROL(p,~0x0020)
185 #define SET_EDATAF(p)     UMASK_AUDIO_CONTROL(p,0x0040)
186 #define UNSET_EDATAF(p)   MASK_AUDIO_CONTROL(p,~0x0040)
187 #define SET_EDATBF(p)     UMASK_AUDIO_CONTROL(p,0x0080)
188 #define UNSET_EDATBF(p)   MASK_AUDIO_CONTROL(p,~0x0080)
189 #define SET_ESBIRQON(p)   UMASK_AUDIO_CONTROL(p,0x0100)
190 #define UNSET_ESBIRQON(p) MASK_AUDIO_CONTROL(p,~0x0100)
191 #define SET_EMPUIRQ(p)    UMASK_AUDIO_CONTROL(p,0x0200)
192 #define UNSET_EMPUIRQ(p)  MASK_AUDIO_CONTROL(p,~0x0200)
193 #define IS_CMDE(a)        (READ_PORT_ULONG(a->stat)&0x1)	/* cmd empty */
194 #define IS_DATF(a)        (READ_PORT_ULONG(a->stat)&0x2)	/* data filled */
195 #define IS_READY(p)       (READ_AUDIO_STATUS(p)&0x0001)
196 #define IS_DLREADY(p)     (READ_AUDIO_STATUS(p)&0x0002)
197 #define IS_DLERR(p)       (READ_AUDIO_STATUS(p)&0x0004)
198 #define IS_GERR(p)        (READ_AUDIO_STATUS(p)&0x0008)	/* error ! */
199 #define IS_CMDAEIRQ(p)    (READ_AUDIO_STATUS(p)&0x0010)
200 #define IS_CMDBEIRQ(p)    (READ_AUDIO_STATUS(p)&0x0020)
201 #define IS_DATAFIRQ(p)    (READ_AUDIO_STATUS(p)&0x0040)
202 #define IS_DATBFIRQ(p)    (READ_AUDIO_STATUS(p)&0x0080)
203 #define IS_EOBIRQ(p)      (READ_AUDIO_STATUS(p)&0x0100)	/* interrupt status */
204 #define IS_EOSIRQ(p)      (READ_AUDIO_STATUS(p)&0x0200)
205 #define IS_EOCIRQ(p)      (READ_AUDIO_STATUS(p)&0x0400)
206 #define IS_UNSLIRQ(p)     (READ_AUDIO_STATUS(p)&0x0800)
207 #define IS_SBIRQ(p)       (READ_AUDIO_STATUS(p)&0x1000)
208 #define IS_MPUIRQ(p)      (READ_AUDIO_STATUS(p)&0x2000)
209 
210 #define RESP 0x00000001		/* command flags */
211 #define PARM 0x00000002
212 #define CMDA 0x00000004
213 #define CMDB 0x00000008
214 #define NILL 0x00000000
215 
216 #define LONG0(a)   ((u32)a)	/* shifts and masks */
217 #define BYTE0(a)   (LONG0(a)&0xff)
218 #define BYTE1(a)   (BYTE0(a)<<8)
219 #define BYTE2(a)   (BYTE0(a)<<16)
220 #define BYTE3(a)   (BYTE0(a)<<24)
221 #define WORD0(a)   (LONG0(a)&0xffff)
222 #define WORD1(a)   (WORD0(a)<<8)
223 #define WORD2(a)   (WORD0(a)<<16)
224 #define TRINIB0(a) (LONG0(a)&0xffffff)
225 #define TRINIB1(a) (TRINIB0(a)<<8)
226 
227 #define RET(a)     ((union cmdret *)(a))
228 
229 #define SEND_GETV(p,b)             sendcmd(p,RESP,GETV,0,RET(b))	/* get version */
230 #define SEND_GETC(p,b,c)           sendcmd(p,PARM|RESP,GETC,c,RET(b))
231 #define SEND_GUNS(p,b)             sendcmd(p,RESP,GUNS,0,RET(b))
232 #define SEND_SCID(p,b)             sendcmd(p,RESP,SCID,0,RET(b))
233 #define SEND_RMEM(p,b,c,d)         sendcmd(p,PARM|RESP,RMEM|BYTE1(b),LONG0(c),RET(d))	/* memory access for firmware write */
234 #define SEND_SMEM(p,b,c)           sendcmd(p,PARM,SMEM|BYTE1(b),LONG0(c),RET(0))	/* memory access for firmware write */
235 #define SEND_WMEM(p,b,c)           sendcmd(p,PARM,WMEM|BYTE1(b),LONG0(c),RET(0))	/* memory access for firmware write */
236 #define SEND_SDTM(p,b,c)           sendcmd(p,PARM|RESP,SDTM|TRINIB1(b),0,RET(c))	/* memory access for firmware write */
237 #define SEND_GOTO(p,b)             sendcmd(p,PARM,GOTO,LONG0(b),RET(0))	/* memory access for firmware write */
238 #define SEND_SETDPLL(p)	           sendcmd(p,0,ARM_SETDPLL,0,RET(0))
239 #define SEND_SSTR(p,b,c)           sendcmd(p,PARM,SSTR|BYTE3(b),LONG0(c),RET(0))	/* start stream */
240 #define SEND_PSTR(p,b)             sendcmd(p,PARM,PSTR,BYTE3(b),RET(0))	/* pause stream */
241 #define SEND_KSTR(p,b)             sendcmd(p,PARM,KSTR,BYTE3(b),RET(0))	/* stop stream */
242 #define SEND_KDMA(p)               sendcmd(p,0,KDMA,0,RET(0))	/* stop all dma */
243 #define SEND_GPOS(p,b,c,d)         sendcmd(p,PARM|RESP,GPOS,BYTE3(c)|BYTE2(b),RET(d))	/* get position in dma */
244 #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 */
245 #define SEND_GSTS(p,b,c,d)         sendcmd(p,PARM|RESP,GSTS,BYTE3(c)|BYTE2(b),RET(d))
246 #define SEND_NGPOS(p,b,c,d)        sendcmd(p,PARM|RESP,NGPOS,BYTE3(c)|BYTE2(b),RET(d))
247 #define SEND_PSEL(p,b,c)           sendcmd(p,PARM,PSEL,BYTE2(b)|BYTE3(c),RET(0))	/* activate lbus path */
248 #define SEND_PCLR(p,b,c)           sendcmd(p,PARM,PCLR,BYTE2(b)|BYTE3(c),RET(0))	/* deactivate lbus path */
249 #define SEND_PLST(p,b)             sendcmd(p,PARM,PLST,BYTE3(b),RET(0))
250 #define SEND_RSSV(p,b,c,d)         sendcmd(p,PARM|RESP,RSSV,BYTE2(b)|BYTE3(c),RET(d))
251 #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 */
252 #define SEND_SSRC(p,b,c,d,e)       sendcmd(p,PARM,SSRC|BYTE1(b)|WORD2(c),WORD0(d)|WORD2(e),RET(0))	/* configure source */
253 #define SEND_SLST(p,b)             sendcmd(p,PARM,SLST,BYTE3(b),RET(0))
254 #define SEND_RSRC(p,b,c)           sendcmd(p,RESP,RSRC|BYTE1(b),0,RET(c))	/* read source config */
255 #define SEND_SSRB(p,b,c)           sendcmd(p,PARM,SSRB|BYTE1(b),WORD2(c),RET(0))
256 #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 */
257 #define SEND_RDGV(p,b,c,d)         sendcmd(p,PARM|RESP,RDGV|BYTE2(b)|BYTE3(c),0,RET(d))	/* read digital mixer */
258 #define SEND_DLST(p,b)             sendcmd(p,PARM,DLST,BYTE3(b),RET(0))
259 #define SEND_SACR(p,b,c)           sendcmd(p,PARM,SACR,WORD0(b)|WORD2(c),RET(0))	/* set AC97 register */
260 #define SEND_RACR(p,b,c)           sendcmd(p,PARM|RESP,RACR,WORD2(b),RET(c))	/* get AC97 register */
261 #define SEND_ALST(p,b)             sendcmd(p,PARM,ALST,BYTE3(b),RET(0))
262 #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))
263 #define SEND_RXAC(p,b,c,d)         sendcmd(p,PARM|RESP,RXAC,BYTE2(b)|BYTE3(c),RET(d))
264 #define SEND_SI2S(p,b)             sendcmd(p,PARM,SI2S,WORD2(b),RET(0))
265 
266 #define EOB_STATUS         0x80000000	/* status flags : block boundary */
267 #define EOS_STATUS         0x40000000	/*              : stoppped */
268 #define EOC_STATUS         0x20000000	/*              : stream end */
269 #define ERR_STATUS         0x10000000
270 #define EMPTY_STATUS       0x08000000
271 
272 #define IEOB_ENABLE        0x1	/* enable interrupts for status notification above */
273 #define IEOS_ENABLE        0x2
274 #define IEOC_ENABLE        0x4
275 #define RDONCE             0x8
276 #define DESC_MAX_MASK      0xff
277 
278 #define ST_PLAY  0x1		/* stream states */
279 #define ST_STOP  0x2
280 #define ST_PAUSE 0x4
281 
282 #define I2S_INTDEC     3	/* config for I2S link */
283 #define I2S_MERGER     0
284 #define I2S_SPLITTER   0
285 #define I2S_MIXER      7
286 #define I2S_RATE       44100
287 
288 #define MODEM_INTDEC   4	/* config for modem link */
289 #define MODEM_MERGER   3
290 #define MODEM_SPLITTER 0
291 #define MODEM_MIXER    11
292 
293 #define FM_INTDEC      3	/* config for FM/OPL3 link */
294 #define FM_MERGER      0
295 #define FM_SPLITTER    0
296 #define FM_MIXER       9
297 
298 #define SPLIT_PATH  0x80	/* path splitting flag */
299 
300 enum FIRMWARE {
301 	DATA_REC = 0, EXT_END_OF_FILE, EXT_SEG_ADDR_REC, EXT_GOTO_CMD_REC,
302 	EXT_LIN_ADDR_REC,
303 };
304 
305 enum CMDS {
306 	GETV = 0x00, GETC, GUNS, SCID, RMEM =
307 	    0x10, SMEM, WMEM, SDTM, GOTO, SSTR =
308 	    0x20, PSTR, KSTR, KDMA, GPOS, SETF, GSTS, NGPOS, PSEL =
309 	    0x30, PCLR, PLST, RSSV, LSEL, SSRC = 0x40, SLST, RSRC, SSRB, SDGV =
310 	    0x50, RDGV, DLST, SACR = 0x60, RACR, ALST, TXAC, RXAC, SI2S =
311 	    0x70, ARM_SETDPLL = 0x72,
312 };
313 
314 enum E1SOURCE {
315 	ARM2LBUS_FIFO0 = 0, ARM2LBUS_FIFO1, ARM2LBUS_FIFO2, ARM2LBUS_FIFO3,
316 	ARM2LBUS_FIFO4, ARM2LBUS_FIFO5, ARM2LBUS_FIFO6, ARM2LBUS_FIFO7,
317 	ARM2LBUS_FIFO8, ARM2LBUS_FIFO9, ARM2LBUS_FIFO10, ARM2LBUS_FIFO11,
318 	ARM2LBUS_FIFO12, ARM2LBUS_FIFO13, ARM2LBUS_FIFO14, ARM2LBUS_FIFO15,
319 	INTER0_OUT, INTER1_OUT, INTER2_OUT, INTER3_OUT, INTER4_OUT,
320 	INTERM0_OUT, INTERM1_OUT, INTERM2_OUT, INTERM3_OUT, INTERM4_OUT,
321 	INTERM5_OUT, INTERM6_OUT, DECIMM0_OUT, DECIMM1_OUT, DECIMM2_OUT,
322 	DECIMM3_OUT, DECIM0_OUT, SR3_4_OUT, OPL3_SAMPLE, ASRC0, ASRC1,
323 	ACLNK2PADC, ACLNK2MODEM0RX, ACLNK2MIC, ACLNK2MODEM1RX, ACLNK2HNDMIC,
324 	DIGITAL_MIXER_OUT0, GAINFUNC0_OUT, GAINFUNC1_OUT, GAINFUNC2_OUT,
325 	GAINFUNC3_OUT, GAINFUNC4_OUT, SOFTMODEMTX, SPLITTER0_OUTL,
326 	SPLITTER0_OUTR, SPLITTER1_OUTL, SPLITTER1_OUTR, SPLITTER2_OUTL,
327 	SPLITTER2_OUTR, SPLITTER3_OUTL, SPLITTER3_OUTR, MERGER0_OUT,
328 	MERGER1_OUT, MERGER2_OUT, MERGER3_OUT, ARM2LBUS_FIFO_DIRECT, NO_OUT
329 };
330 
331 enum E2SINK {
332 	LBUS2ARM_FIFO0 = 0, LBUS2ARM_FIFO1, LBUS2ARM_FIFO2, LBUS2ARM_FIFO3,
333 	LBUS2ARM_FIFO4, LBUS2ARM_FIFO5, LBUS2ARM_FIFO6, LBUS2ARM_FIFO7,
334 	INTER0_IN, INTER1_IN, INTER2_IN, INTER3_IN, INTER4_IN, INTERM0_IN,
335 	INTERM1_IN, INTERM2_IN, INTERM3_IN, INTERM4_IN, INTERM5_IN, INTERM6_IN,
336 	DECIMM0_IN, DECIMM1_IN, DECIMM2_IN, DECIMM3_IN, DECIM0_IN, SR3_4_IN,
337 	PDAC2ACLNK, MODEM0TX2ACLNK, MODEM1TX2ACLNK, HNDSPK2ACLNK,
338 	DIGITAL_MIXER_IN0, DIGITAL_MIXER_IN1, DIGITAL_MIXER_IN2,
339 	DIGITAL_MIXER_IN3, DIGITAL_MIXER_IN4, DIGITAL_MIXER_IN5,
340 	DIGITAL_MIXER_IN6, DIGITAL_MIXER_IN7, DIGITAL_MIXER_IN8,
341 	DIGITAL_MIXER_IN9, DIGITAL_MIXER_IN10, DIGITAL_MIXER_IN11,
342 	GAINFUNC0_IN, GAINFUNC1_IN, GAINFUNC2_IN, GAINFUNC3_IN, GAINFUNC4_IN,
343 	SOFTMODEMRX, SPLITTER0_IN, SPLITTER1_IN, SPLITTER2_IN, SPLITTER3_IN,
344 	MERGER0_INL, MERGER0_INR, MERGER1_INL, MERGER1_INR, MERGER2_INL,
345 	MERGER2_INR, MERGER3_INL, MERGER3_INR, E2SINK_MAX
346 };
347 
348 enum LBUS_SINK {
349 	LS_SRC_INTERPOLATOR = 0, LS_SRC_INTERPOLATORM, LS_SRC_DECIMATOR,
350 	LS_SRC_DECIMATORM, LS_MIXER_IN, LS_MIXER_GAIN_FUNCTION,
351 	LS_SRC_SPLITTER, LS_SRC_MERGER, LS_NONE1, LS_NONE2,
352 };
353 
354 enum RT_CHANNEL_IDS {
355 	M0TX = 0, M1TX, TAMTX, HSSPKR, PDAC, DSNDTX0, DSNDTX1, DSNDTX2,
356 	DSNDTX3, DSNDTX4, DSNDTX5, DSNDTX6, DSNDTX7, WVSTRTX, COP3DTX, SPARE,
357 	M0RX, HSMIC, M1RX, CLEANRX, MICADC, PADC, COPRX1, COPRX2,
358 	CHANNEL_ID_COUNTER
359 };
360 
361 enum { SB_CMD = 0, MODEM_CMD, I2S_CMD0, I2S_CMD1, FM_CMD, MAX_CMD };
362 
363 struct lbuspath {
364 	const unsigned char *noconv;
365 	const unsigned char *stereo;
366 	const unsigned char *mono;
367 };
368 
369 struct cmdport {
370 	u32 data1;		/* cmd,param */
371 	u32 data2;		/* param */
372 	u32 stat;		/* status */
373 	u32 pad[5];
374 };
375 
376 struct riptideport {
377 	u32 audio_control;	/* status registers */
378 	u32 audio_status;
379 	u32 pad[2];
380 	struct cmdport port[2];	/* command ports */
381 };
382 
383 struct cmdif {
384 	struct riptideport *hwport;
385 	spinlock_t lock;
386 	unsigned int cmdcnt;	/* cmd statistics */
387 	unsigned int cmdtime;
388 	unsigned int cmdtimemax;
389 	unsigned int cmdtimemin;
390 	unsigned int errcnt;
391 	int is_reset;
392 };
393 
394 struct riptide_firmware {
395 	u16 ASIC;
396 	u16 CODEC;
397 	u16 AUXDSP;
398 	u16 PROG;
399 };
400 
401 union cmdret {
402 	u8 retbytes[8];
403 	u16 retwords[4];
404 	u32 retlongs[2];
405 };
406 
407 union firmware_version {
408 	union cmdret ret;
409 	struct riptide_firmware firmware;
410 };
411 
412 #define get_pcmhwdev(substream) (struct pcmhw *)(substream->runtime->private_data)
413 
414 #define PLAYBACK_SUBSTREAMS 3
415 struct snd_riptide {
416 	struct snd_card *card;
417 	struct pci_dev *pci;
418 	const struct firmware *fw_entry;
419 
420 	struct cmdif *cif;
421 
422 	struct snd_pcm *pcm;
423 	struct snd_pcm *pcm_i2s;
424 	struct snd_rawmidi *rmidi;
425 	struct snd_opl3 *opl3;
426 	struct snd_ac97 *ac97;
427 	struct snd_ac97_bus *ac97_bus;
428 
429 	struct snd_pcm_substream *playback_substream[PLAYBACK_SUBSTREAMS];
430 	struct snd_pcm_substream *capture_substream;
431 
432 	int openstreams;
433 
434 	int irq;
435 	unsigned long port;
436 	unsigned short mpuaddr;
437 	unsigned short opladdr;
438 #ifdef SUPPORT_JOYSTICK
439 	unsigned short gameaddr;
440 #endif
441 	struct resource *res_port;
442 
443 	unsigned short device_id;
444 
445 	union firmware_version firmware;
446 
447 	spinlock_t lock;
448 	struct snd_info_entry *proc_entry;
449 
450 	unsigned long received_irqs;
451 	unsigned long handled_irqs;
452 #ifdef CONFIG_PM_SLEEP
453 	int in_suspend;
454 #endif
455 };
456 
457 struct sgd {			/* scatter gather desriptor */
458 	__le32 dwNextLink;
459 	__le32 dwSegPtrPhys;
460 	__le32 dwSegLen;
461 	__le32 dwStat_Ctl;
462 };
463 
464 struct pcmhw {			/* pcm descriptor */
465 	struct lbuspath paths;
466 	const unsigned char *lbuspath;
467 	unsigned char source;
468 	unsigned char intdec[2];
469 	unsigned char mixer;
470 	unsigned char id;
471 	unsigned char state;
472 	unsigned int rate;
473 	unsigned int channels;
474 	snd_pcm_format_t format;
475 	struct snd_dma_buffer sgdlist;
476 	struct sgd *sgdbuf;
477 	unsigned int size;
478 	unsigned int pages;
479 	unsigned int oldpos;
480 	unsigned int pointer;
481 };
482 
483 #define CMDRET_ZERO (union cmdret){{(u32)0, (u32) 0}}
484 
485 static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
486 		   union cmdret *ret);
487 static int getsourcesink(struct cmdif *cif, unsigned char source,
488 			 unsigned char sink, unsigned char *a,
489 			 unsigned char *b);
490 static int snd_riptide_initialize(struct snd_riptide *chip);
491 static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip);
492 
493 /*
494  */
495 
496 static const struct pci_device_id snd_riptide_ids[] = {
497 	{ PCI_DEVICE(0x127a, 0x4310) },
498 	{ PCI_DEVICE(0x127a, 0x4320) },
499 	{ PCI_DEVICE(0x127a, 0x4330) },
500 	{ PCI_DEVICE(0x127a, 0x4340) },
501 	{0,},
502 };
503 
504 #ifdef SUPPORT_JOYSTICK
505 static const struct pci_device_id snd_riptide_joystick_ids[] = {
506 	{ PCI_DEVICE(0x127a, 0x4312) },
507 	{ PCI_DEVICE(0x127a, 0x4322) },
508 	{ PCI_DEVICE(0x127a, 0x4332) },
509 	{ PCI_DEVICE(0x127a, 0x4342) },
510 	{0,},
511 };
512 #endif
513 
514 MODULE_DEVICE_TABLE(pci, snd_riptide_ids);
515 
516 /*
517  */
518 
519 static const unsigned char lbusin2out[E2SINK_MAX + 1][2] = {
520 	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
521 								     LS_NONE2},
522 	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
523 								     LS_NONE2},
524 	{INTER0_OUT, LS_SRC_INTERPOLATOR}, {INTER1_OUT, LS_SRC_INTERPOLATOR},
525 	{INTER2_OUT, LS_SRC_INTERPOLATOR}, {INTER3_OUT, LS_SRC_INTERPOLATOR},
526 	{INTER4_OUT, LS_SRC_INTERPOLATOR}, {INTERM0_OUT, LS_SRC_INTERPOLATORM},
527 	{INTERM1_OUT, LS_SRC_INTERPOLATORM}, {INTERM2_OUT,
528 					      LS_SRC_INTERPOLATORM},
529 	{INTERM3_OUT, LS_SRC_INTERPOLATORM}, {INTERM4_OUT,
530 					      LS_SRC_INTERPOLATORM},
531 	{INTERM5_OUT, LS_SRC_INTERPOLATORM}, {INTERM6_OUT,
532 					      LS_SRC_INTERPOLATORM},
533 	{DECIMM0_OUT, LS_SRC_DECIMATORM}, {DECIMM1_OUT, LS_SRC_DECIMATORM},
534 	{DECIMM2_OUT, LS_SRC_DECIMATORM}, {DECIMM3_OUT, LS_SRC_DECIMATORM},
535 	{DECIM0_OUT, LS_SRC_DECIMATOR}, {SR3_4_OUT, LS_NONE1}, {NO_OUT,
536 								LS_NONE2},
537 	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1},
538 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
539 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
540 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
541 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
542 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
543 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
544 	{GAINFUNC0_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC1_OUT,
545 						  LS_MIXER_GAIN_FUNCTION},
546 	{GAINFUNC2_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC3_OUT,
547 						  LS_MIXER_GAIN_FUNCTION},
548 	{GAINFUNC4_OUT, LS_MIXER_GAIN_FUNCTION}, {SOFTMODEMTX, LS_NONE1},
549 	{SPLITTER0_OUTL, LS_SRC_SPLITTER}, {SPLITTER1_OUTL, LS_SRC_SPLITTER},
550 	{SPLITTER2_OUTL, LS_SRC_SPLITTER}, {SPLITTER3_OUTL, LS_SRC_SPLITTER},
551 	{MERGER0_OUT, LS_SRC_MERGER}, {MERGER0_OUT, LS_SRC_MERGER},
552 	{MERGER1_OUT, LS_SRC_MERGER},
553 	{MERGER1_OUT, LS_SRC_MERGER}, {MERGER2_OUT, LS_SRC_MERGER},
554 	{MERGER2_OUT, LS_SRC_MERGER},
555 	{MERGER3_OUT, LS_SRC_MERGER}, {MERGER3_OUT, LS_SRC_MERGER}, {NO_OUT,
556 								     LS_NONE2},
557 };
558 
559 static const unsigned char lbus_play_opl3[] = {
560 	DIGITAL_MIXER_IN0 + FM_MIXER, 0xff
561 };
562 static const unsigned char lbus_play_modem[] = {
563 	DIGITAL_MIXER_IN0 + MODEM_MIXER, 0xff
564 };
565 static const unsigned char lbus_play_i2s[] = {
566 	INTER0_IN + I2S_INTDEC, DIGITAL_MIXER_IN0 + I2S_MIXER, 0xff
567 };
568 static const unsigned char lbus_play_out[] = {
569 	PDAC2ACLNK, 0xff
570 };
571 static const unsigned char lbus_play_outhp[] = {
572 	HNDSPK2ACLNK, 0xff
573 };
574 static const unsigned char lbus_play_noconv1[] = {
575 	DIGITAL_MIXER_IN0, 0xff
576 };
577 static const unsigned char lbus_play_stereo1[] = {
578 	INTER0_IN, DIGITAL_MIXER_IN0, 0xff
579 };
580 static const unsigned char lbus_play_mono1[] = {
581 	INTERM0_IN, DIGITAL_MIXER_IN0, 0xff
582 };
583 static const unsigned char lbus_play_noconv2[] = {
584 	DIGITAL_MIXER_IN1, 0xff
585 };
586 static const unsigned char lbus_play_stereo2[] = {
587 	INTER1_IN, DIGITAL_MIXER_IN1, 0xff
588 };
589 static const unsigned char lbus_play_mono2[] = {
590 	INTERM1_IN, DIGITAL_MIXER_IN1, 0xff
591 };
592 static const unsigned char lbus_play_noconv3[] = {
593 	DIGITAL_MIXER_IN2, 0xff
594 };
595 static const unsigned char lbus_play_stereo3[] = {
596 	INTER2_IN, DIGITAL_MIXER_IN2, 0xff
597 };
598 static const unsigned char lbus_play_mono3[] = {
599 	INTERM2_IN, DIGITAL_MIXER_IN2, 0xff
600 };
601 static const unsigned char lbus_rec_noconv1[] = {
602 	LBUS2ARM_FIFO5, 0xff
603 };
604 static const unsigned char lbus_rec_stereo1[] = {
605 	DECIM0_IN, LBUS2ARM_FIFO5, 0xff
606 };
607 static const unsigned char lbus_rec_mono1[] = {
608 	DECIMM3_IN, LBUS2ARM_FIFO5, 0xff
609 };
610 
611 static const unsigned char play_ids[] = { 4, 1, 2, };
612 static const unsigned char play_sources[] = {
613 	ARM2LBUS_FIFO4, ARM2LBUS_FIFO1, ARM2LBUS_FIFO2,
614 };
615 static const struct lbuspath lbus_play_paths[] = {
616 	{
617 	 .noconv = lbus_play_noconv1,
618 	 .stereo = lbus_play_stereo1,
619 	 .mono = lbus_play_mono1,
620 	 },
621 	{
622 	 .noconv = lbus_play_noconv2,
623 	 .stereo = lbus_play_stereo2,
624 	 .mono = lbus_play_mono2,
625 	 },
626 	{
627 	 .noconv = lbus_play_noconv3,
628 	 .stereo = lbus_play_stereo3,
629 	 .mono = lbus_play_mono3,
630 	 },
631 };
632 static const struct lbuspath lbus_rec_path = {
633 	.noconv = lbus_rec_noconv1,
634 	.stereo = lbus_rec_stereo1,
635 	.mono = lbus_rec_mono1,
636 };
637 
638 #define FIRMWARE_VERSIONS 1
639 static union firmware_version firmware_versions[] = {
640 	{
641 		.firmware = {
642 			.ASIC = 3,
643 			.CODEC = 2,
644 			.AUXDSP = 3,
645 			.PROG = 773,
646 		},
647 	},
648 };
649 
650 static u32 atoh(const unsigned char *in, unsigned int len)
651 {
652 	u32 sum = 0;
653 	unsigned int mult = 1;
654 	unsigned char c;
655 
656 	while (len) {
657 		int value;
658 
659 		c = in[len - 1];
660 		value = hex_to_bin(c);
661 		if (value >= 0)
662 			sum += mult * value;
663 		mult *= 16;
664 		--len;
665 	}
666 	return sum;
667 }
668 
669 static int senddata(struct cmdif *cif, const unsigned char *in, u32 offset)
670 {
671 	u32 addr;
672 	u32 data;
673 	u32 i;
674 	const unsigned char *p;
675 
676 	i = atoh(&in[1], 2);
677 	addr = offset + atoh(&in[3], 4);
678 	if (SEND_SMEM(cif, 0, addr) != 0)
679 		return -EACCES;
680 	p = in + 9;
681 	while (i) {
682 		data = atoh(p, 8);
683 		if (SEND_WMEM(cif, 2,
684 			      ((data & 0x0f0f0f0f) << 4) | ((data & 0xf0f0f0f0)
685 							    >> 4)))
686 			return -EACCES;
687 		i -= 4;
688 		p += 8;
689 	}
690 	return 0;
691 }
692 
693 static int loadfirmware(struct cmdif *cif, const unsigned char *img,
694 			unsigned int size)
695 {
696 	const unsigned char *in;
697 	u32 laddr, saddr, t, val;
698 	int err = 0;
699 
700 	laddr = saddr = 0;
701 	while (size > 0 && err == 0) {
702 		in = img;
703 		if (in[0] == ':') {
704 			t = atoh(&in[7], 2);
705 			switch (t) {
706 			case DATA_REC:
707 				err = senddata(cif, in, laddr + saddr);
708 				break;
709 			case EXT_SEG_ADDR_REC:
710 				saddr = atoh(&in[9], 4) << 4;
711 				break;
712 			case EXT_LIN_ADDR_REC:
713 				laddr = atoh(&in[9], 4) << 16;
714 				break;
715 			case EXT_GOTO_CMD_REC:
716 				val = atoh(&in[9], 8);
717 				if (SEND_GOTO(cif, val) != 0)
718 					err = -EACCES;
719 				break;
720 			case EXT_END_OF_FILE:
721 				size = 0;
722 				break;
723 			default:
724 				break;
725 			}
726 			while (size > 0) {
727 				size--;
728 				if (*img++ == '\n')
729 					break;
730 			}
731 		}
732 	}
733 	snd_printdd("load firmware return %d\n", err);
734 	return err;
735 }
736 
737 static void
738 alloclbuspath(struct cmdif *cif, unsigned char source,
739 	      const unsigned char *path, unsigned char *mixer, unsigned char *s)
740 {
741 	while (*path != 0xff) {
742 		unsigned char sink, type;
743 
744 		sink = *path & (~SPLIT_PATH);
745 		if (sink != E2SINK_MAX) {
746 			snd_printdd("alloc path 0x%x->0x%x\n", source, sink);
747 			SEND_PSEL(cif, source, sink);
748 			source = lbusin2out[sink][0];
749 			type = lbusin2out[sink][1];
750 			if (type == LS_MIXER_IN) {
751 				if (mixer)
752 					*mixer = sink - DIGITAL_MIXER_IN0;
753 			}
754 			if (type == LS_SRC_DECIMATORM ||
755 			    type == LS_SRC_DECIMATOR ||
756 			    type == LS_SRC_INTERPOLATORM ||
757 			    type == LS_SRC_INTERPOLATOR) {
758 				if (s) {
759 					if (s[0] != 0xff)
760 						s[1] = sink;
761 					else
762 						s[0] = sink;
763 				}
764 			}
765 		}
766 		if (*path++ & SPLIT_PATH) {
767 			const unsigned char *npath = path;
768 
769 			while (*npath != 0xff)
770 				npath++;
771 			alloclbuspath(cif, source + 1, ++npath, mixer, s);
772 		}
773 	}
774 }
775 
776 static void
777 freelbuspath(struct cmdif *cif, unsigned char source, const unsigned char *path)
778 {
779 	while (*path != 0xff) {
780 		unsigned char sink;
781 
782 		sink = *path & (~SPLIT_PATH);
783 		if (sink != E2SINK_MAX) {
784 			snd_printdd("free path 0x%x->0x%x\n", source, sink);
785 			SEND_PCLR(cif, source, sink);
786 			source = lbusin2out[sink][0];
787 		}
788 		if (*path++ & SPLIT_PATH) {
789 			const unsigned char *npath = path;
790 
791 			while (*npath != 0xff)
792 				npath++;
793 			freelbuspath(cif, source + 1, ++npath);
794 		}
795 	}
796 }
797 
798 static int writearm(struct cmdif *cif, u32 addr, u32 data, u32 mask)
799 {
800 	union cmdret rptr = CMDRET_ZERO;
801 	unsigned int i = MAX_WRITE_RETRY;
802 	int flag = 1;
803 
804 	SEND_RMEM(cif, 0x02, addr, &rptr);
805 	rptr.retlongs[0] &= (~mask);
806 
807 	while (--i) {
808 		SEND_SMEM(cif, 0x01, addr);
809 		SEND_WMEM(cif, 0x02, (rptr.retlongs[0] | data));
810 		SEND_RMEM(cif, 0x02, addr, &rptr);
811 		if ((rptr.retlongs[0] & data) == data) {
812 			flag = 0;
813 			break;
814 		} else
815 			rptr.retlongs[0] &= ~mask;
816 	}
817 	snd_printdd("send arm 0x%x 0x%x 0x%x return %d\n", addr, data, mask,
818 		    flag);
819 	return flag;
820 }
821 
822 static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
823 		   union cmdret *ret)
824 {
825 	int i, j;
826 	int err;
827 	unsigned int time = 0;
828 	unsigned long irqflags;
829 	struct riptideport *hwport;
830 	struct cmdport *cmdport = NULL;
831 
832 	if (snd_BUG_ON(!cif))
833 		return -EINVAL;
834 
835 	hwport = cif->hwport;
836 	if (cif->errcnt > MAX_ERROR_COUNT) {
837 		if (cif->is_reset) {
838 			snd_printk(KERN_ERR
839 				   "Riptide: Too many failed cmds, reinitializing\n");
840 			if (riptide_reset(cif, NULL) == 0) {
841 				cif->errcnt = 0;
842 				return -EIO;
843 			}
844 		}
845 		snd_printk(KERN_ERR "Riptide: Initialization failed.\n");
846 		return -EINVAL;
847 	}
848 	if (ret) {
849 		ret->retlongs[0] = 0;
850 		ret->retlongs[1] = 0;
851 	}
852 	i = 0;
853 	spin_lock_irqsave(&cif->lock, irqflags);
854 	while (i++ < CMDIF_TIMEOUT && !IS_READY(cif->hwport))
855 		udelay(10);
856 	if (i > CMDIF_TIMEOUT) {
857 		err = -EBUSY;
858 		goto errout;
859 	}
860 
861 	err = 0;
862 	for (j = 0, time = 0; time < CMDIF_TIMEOUT; j++, time += 2) {
863 		cmdport = &(hwport->port[j % 2]);
864 		if (IS_DATF(cmdport)) {	/* free pending data */
865 			READ_PORT_ULONG(cmdport->data1);
866 			READ_PORT_ULONG(cmdport->data2);
867 		}
868 		if (IS_CMDE(cmdport)) {
869 			if (flags & PARM)	/* put data */
870 				WRITE_PORT_ULONG(cmdport->data2, parm);
871 			WRITE_PORT_ULONG(cmdport->data1, cmd);	/* write cmd */
872 			if ((flags & RESP) && ret) {
873 				while (!IS_DATF(cmdport) &&
874 				       time < CMDIF_TIMEOUT) {
875 					udelay(10);
876 					time++;
877 				}
878 				if (time < CMDIF_TIMEOUT) {	/* read response */
879 					ret->retlongs[0] =
880 					    READ_PORT_ULONG(cmdport->data1);
881 					ret->retlongs[1] =
882 					    READ_PORT_ULONG(cmdport->data2);
883 				} else {
884 					err = -ENOSYS;
885 					goto errout;
886 				}
887 			}
888 			break;
889 		}
890 		udelay(20);
891 	}
892 	if (time == CMDIF_TIMEOUT) {
893 		err = -ENODATA;
894 		goto errout;
895 	}
896 	spin_unlock_irqrestore(&cif->lock, irqflags);
897 
898 	cif->cmdcnt++;		/* update command statistics */
899 	cif->cmdtime += time;
900 	if (time > cif->cmdtimemax)
901 		cif->cmdtimemax = time;
902 	if (time < cif->cmdtimemin)
903 		cif->cmdtimemin = time;
904 	if ((cif->cmdcnt) % 1000 == 0)
905 		snd_printdd
906 		    ("send cmd %d time: %d mintime: %d maxtime %d err: %d\n",
907 		     cif->cmdcnt, cif->cmdtime, cif->cmdtimemin,
908 		     cif->cmdtimemax, cif->errcnt);
909 	return 0;
910 
911       errout:
912 	cif->errcnt++;
913 	spin_unlock_irqrestore(&cif->lock, irqflags);
914 	snd_printdd
915 	    ("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",
916 	     cif->cmdcnt, (int)((void *)&(cmdport->stat) - (void *)hwport),
917 	     flags, cmd, parm, ret ? ret->retlongs[0] : 0,
918 	     ret ? ret->retlongs[1] : 0, IS_CMDE(cmdport), IS_DATF(cmdport),
919 	     err);
920 	return err;
921 }
922 
923 static int
924 setmixer(struct cmdif *cif, short num, unsigned short rval, unsigned short lval)
925 {
926 	union cmdret rptr = CMDRET_ZERO;
927 	int i = 0;
928 
929 	snd_printdd("sent mixer %d: 0x%x 0x%x\n", num, rval, lval);
930 	do {
931 		SEND_SDGV(cif, num, num, rval, lval);
932 		SEND_RDGV(cif, num, num, &rptr);
933 		if (rptr.retwords[0] == lval && rptr.retwords[1] == rval)
934 			return 0;
935 	} while (i++ < MAX_WRITE_RETRY);
936 	snd_printdd("sent mixer failed\n");
937 	return -EIO;
938 }
939 
940 static int getpaths(struct cmdif *cif, unsigned char *o)
941 {
942 	unsigned char src[E2SINK_MAX];
943 	unsigned char sink[E2SINK_MAX];
944 	int i, j = 0;
945 
946 	for (i = 0; i < E2SINK_MAX; i++) {
947 		getsourcesink(cif, i, i, &src[i], &sink[i]);
948 		if (sink[i] < E2SINK_MAX) {
949 			o[j++] = sink[i];
950 			o[j++] = i;
951 		}
952 	}
953 	return j;
954 }
955 
956 static int
957 getsourcesink(struct cmdif *cif, unsigned char source, unsigned char sink,
958 	      unsigned char *a, unsigned char *b)
959 {
960 	union cmdret rptr = CMDRET_ZERO;
961 
962 	if (SEND_RSSV(cif, source, sink, &rptr) &&
963 	    SEND_RSSV(cif, source, sink, &rptr))
964 		return -EIO;
965 	*a = rptr.retbytes[0];
966 	*b = rptr.retbytes[1];
967 	snd_printdd("getsourcesink 0x%x 0x%x\n", *a, *b);
968 	return 0;
969 }
970 
971 static int
972 getsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int *rate)
973 {
974 	unsigned char *s;
975 	unsigned int p[2] = { 0, 0 };
976 	int i;
977 	union cmdret rptr = CMDRET_ZERO;
978 
979 	s = intdec;
980 	for (i = 0; i < 2; i++) {
981 		if (*s != 0xff) {
982 			if (SEND_RSRC(cif, *s, &rptr) &&
983 			    SEND_RSRC(cif, *s, &rptr))
984 				return -EIO;
985 			p[i] += rptr.retwords[1];
986 			p[i] *= rptr.retwords[2];
987 			p[i] += rptr.retwords[3];
988 			p[i] /= 65536;
989 		}
990 		s++;
991 	}
992 	if (p[0]) {
993 		if (p[1] != p[0])
994 			snd_printdd("rates differ %d %d\n", p[0], p[1]);
995 		*rate = (unsigned int)p[0];
996 	} else
997 		*rate = (unsigned int)p[1];
998 	snd_printdd("getsampleformat %d %d %d\n", intdec[0], intdec[1], *rate);
999 	return 0;
1000 }
1001 
1002 static int
1003 setsampleformat(struct cmdif *cif,
1004 		unsigned char mixer, unsigned char id,
1005 		unsigned char channels, snd_pcm_format_t format)
1006 {
1007 	unsigned char w, ch, sig, order;
1008 
1009 	snd_printdd
1010 	    ("setsampleformat mixer: %d id: %d channels: %d format: %d\n",
1011 	     mixer, id, channels, format);
1012 	ch = channels == 1;
1013 	w = snd_pcm_format_width(format) == 8;
1014 	sig = snd_pcm_format_unsigned(format) != 0;
1015 	order = snd_pcm_format_big_endian(format) != 0;
1016 
1017 	if (SEND_SETF(cif, mixer, w, ch, order, sig, id) &&
1018 	    SEND_SETF(cif, mixer, w, ch, order, sig, id)) {
1019 		snd_printdd("setsampleformat failed\n");
1020 		return -EIO;
1021 	}
1022 	return 0;
1023 }
1024 
1025 static int
1026 setsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int rate)
1027 {
1028 	u32 D, M, N;
1029 	union cmdret rptr = CMDRET_ZERO;
1030 	int i;
1031 
1032 	snd_printdd("setsamplerate intdec: %d,%d rate: %d\n", intdec[0],
1033 		    intdec[1], rate);
1034 	D = 48000;
1035 	M = ((rate == 48000) ? 47999 : rate) * 65536;
1036 	N = M % D;
1037 	M /= D;
1038 	for (i = 0; i < 2; i++) {
1039 		if (*intdec != 0xff) {
1040 			do {
1041 				SEND_SSRC(cif, *intdec, D, M, N);
1042 				SEND_RSRC(cif, *intdec, &rptr);
1043 			} while (rptr.retwords[1] != D &&
1044 				 rptr.retwords[2] != M &&
1045 				 rptr.retwords[3] != N &&
1046 				 i++ < MAX_WRITE_RETRY);
1047 			if (i > MAX_WRITE_RETRY) {
1048 				snd_printdd("sent samplerate %d: %d failed\n",
1049 					    *intdec, rate);
1050 				return -EIO;
1051 			}
1052 		}
1053 		intdec++;
1054 	}
1055 	return 0;
1056 }
1057 
1058 static int
1059 getmixer(struct cmdif *cif, short num, unsigned short *rval,
1060 	 unsigned short *lval)
1061 {
1062 	union cmdret rptr = CMDRET_ZERO;
1063 
1064 	if (SEND_RDGV(cif, num, num, &rptr) && SEND_RDGV(cif, num, num, &rptr))
1065 		return -EIO;
1066 	*rval = rptr.retwords[0];
1067 	*lval = rptr.retwords[1];
1068 	snd_printdd("got mixer %d: 0x%x 0x%x\n", num, *rval, *lval);
1069 	return 0;
1070 }
1071 
1072 static irqreturn_t riptide_handleirq(int irq, void *dev_id)
1073 {
1074 	struct snd_riptide *chip = dev_id;
1075 	struct cmdif *cif = chip->cif;
1076 	struct snd_pcm_substream *substream[PLAYBACK_SUBSTREAMS + 1];
1077 	struct snd_pcm_runtime *runtime;
1078 	struct pcmhw *data = NULL;
1079 	unsigned int pos, period_bytes;
1080 	struct sgd *c;
1081 	int i, j;
1082 	unsigned int flag;
1083 
1084 	if (!cif)
1085 		return IRQ_HANDLED;
1086 
1087 	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++)
1088 		substream[i] = chip->playback_substream[i];
1089 	substream[i] = chip->capture_substream;
1090 	for (i = 0; i < PLAYBACK_SUBSTREAMS + 1; i++) {
1091 		if (substream[i] &&
1092 		    (runtime = substream[i]->runtime) &&
1093 		    (data = runtime->private_data) && data->state != ST_STOP) {
1094 			pos = 0;
1095 			for (j = 0; j < data->pages; j++) {
1096 				c = &data->sgdbuf[j];
1097 				flag = le32_to_cpu(c->dwStat_Ctl);
1098 				if (flag & EOB_STATUS)
1099 					pos += le32_to_cpu(c->dwSegLen);
1100 				if (flag & EOC_STATUS)
1101 					pos += le32_to_cpu(c->dwSegLen);
1102 				if ((flag & EOS_STATUS)
1103 				    && (data->state == ST_PLAY)) {
1104 					data->state = ST_STOP;
1105 					snd_printk(KERN_ERR
1106 						   "Riptide: DMA stopped unexpectedly\n");
1107 				}
1108 				c->dwStat_Ctl =
1109 				    cpu_to_le32(flag &
1110 						~(EOS_STATUS | EOB_STATUS |
1111 						  EOC_STATUS));
1112 			}
1113 			data->pointer += pos;
1114 			pos += data->oldpos;
1115 			if (data->state != ST_STOP) {
1116 				period_bytes =
1117 				    frames_to_bytes(runtime,
1118 						    runtime->period_size);
1119 				snd_printdd
1120 				    ("interrupt 0x%x after 0x%lx of 0x%lx frames in period\n",
1121 				     READ_AUDIO_STATUS(cif->hwport),
1122 				     bytes_to_frames(runtime, pos),
1123 				     runtime->period_size);
1124 				j = 0;
1125 				if (pos >= period_bytes) {
1126 					j++;
1127 					while (pos >= period_bytes)
1128 						pos -= period_bytes;
1129 				}
1130 				data->oldpos = pos;
1131 				if (j > 0)
1132 					snd_pcm_period_elapsed(substream[i]);
1133 			}
1134 		}
1135 	}
1136 
1137 	return IRQ_HANDLED;
1138 }
1139 
1140 #ifdef CONFIG_PM_SLEEP
1141 static int riptide_suspend(struct device *dev)
1142 {
1143 	struct snd_card *card = dev_get_drvdata(dev);
1144 	struct snd_riptide *chip = card->private_data;
1145 
1146 	chip->in_suspend = 1;
1147 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1148 	snd_ac97_suspend(chip->ac97);
1149 	return 0;
1150 }
1151 
1152 static int riptide_resume(struct device *dev)
1153 {
1154 	struct snd_card *card = dev_get_drvdata(dev);
1155 	struct snd_riptide *chip = card->private_data;
1156 
1157 	snd_riptide_initialize(chip);
1158 	snd_ac97_resume(chip->ac97);
1159 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1160 	chip->in_suspend = 0;
1161 	return 0;
1162 }
1163 
1164 static SIMPLE_DEV_PM_OPS(riptide_pm, riptide_suspend, riptide_resume);
1165 #define RIPTIDE_PM_OPS	&riptide_pm
1166 #else
1167 #define RIPTIDE_PM_OPS	NULL
1168 #endif /* CONFIG_PM_SLEEP */
1169 
1170 static int try_to_load_firmware(struct cmdif *cif, struct snd_riptide *chip)
1171 {
1172 	union firmware_version firmware = { .ret = CMDRET_ZERO };
1173 	int i, timeout, err;
1174 
1175 	for (i = 0; i < 2; i++) {
1176 		WRITE_PORT_ULONG(cif->hwport->port[i].data1, 0);
1177 		WRITE_PORT_ULONG(cif->hwport->port[i].data2, 0);
1178 	}
1179 	SET_GRESET(cif->hwport);
1180 	udelay(100);
1181 	UNSET_GRESET(cif->hwport);
1182 	udelay(100);
1183 
1184 	for (timeout = 100000; --timeout; udelay(10)) {
1185 		if (IS_READY(cif->hwport) && !IS_GERR(cif->hwport))
1186 			break;
1187 	}
1188 	if (!timeout) {
1189 		snd_printk(KERN_ERR
1190 			   "Riptide: device not ready, audio status: 0x%x "
1191 			   "ready: %d gerr: %d\n",
1192 			   READ_AUDIO_STATUS(cif->hwport),
1193 			   IS_READY(cif->hwport), IS_GERR(cif->hwport));
1194 		return -EIO;
1195 	} else {
1196 		snd_printdd
1197 			("Riptide: audio status: 0x%x ready: %d gerr: %d\n",
1198 			 READ_AUDIO_STATUS(cif->hwport),
1199 			 IS_READY(cif->hwport), IS_GERR(cif->hwport));
1200 	}
1201 
1202 	SEND_GETV(cif, &firmware.ret);
1203 	snd_printdd("Firmware version: ASIC: %d CODEC %d AUXDSP %d PROG %d\n",
1204 		    firmware.firmware.ASIC, firmware.firmware.CODEC,
1205 		    firmware.firmware.AUXDSP, firmware.firmware.PROG);
1206 
1207 	if (!chip)
1208 		return 1;
1209 
1210 	for (i = 0; i < FIRMWARE_VERSIONS; i++) {
1211 		if (!memcmp(&firmware_versions[i], &firmware, sizeof(firmware)))
1212 			return 1; /* OK */
1213 
1214 	}
1215 
1216 	snd_printdd("Writing Firmware\n");
1217 	if (!chip->fw_entry) {
1218 		err = request_firmware(&chip->fw_entry, "riptide.hex",
1219 				       &chip->pci->dev);
1220 		if (err) {
1221 			snd_printk(KERN_ERR
1222 				   "Riptide: Firmware not available %d\n", err);
1223 			return -EIO;
1224 		}
1225 	}
1226 	err = loadfirmware(cif, chip->fw_entry->data, chip->fw_entry->size);
1227 	if (err) {
1228 		snd_printk(KERN_ERR
1229 			   "Riptide: Could not load firmware %d\n", err);
1230 		return err;
1231 	}
1232 
1233 	chip->firmware = firmware;
1234 
1235 	return 1; /* OK */
1236 }
1237 
1238 static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip)
1239 {
1240 	union cmdret rptr = CMDRET_ZERO;
1241 	int err, tries;
1242 
1243 	if (!cif)
1244 		return -EINVAL;
1245 
1246 	cif->cmdcnt = 0;
1247 	cif->cmdtime = 0;
1248 	cif->cmdtimemax = 0;
1249 	cif->cmdtimemin = 0xffffffff;
1250 	cif->errcnt = 0;
1251 	cif->is_reset = 0;
1252 
1253 	tries = RESET_TRIES;
1254 	do {
1255 		err = try_to_load_firmware(cif, chip);
1256 		if (err < 0)
1257 			return err;
1258 	} while (!err && --tries);
1259 
1260 	SEND_SACR(cif, 0, AC97_RESET);
1261 	SEND_RACR(cif, AC97_RESET, &rptr);
1262 	snd_printdd("AC97: 0x%x 0x%x\n", rptr.retlongs[0], rptr.retlongs[1]);
1263 
1264 	SEND_PLST(cif, 0);
1265 	SEND_SLST(cif, 0);
1266 	SEND_DLST(cif, 0);
1267 	SEND_ALST(cif, 0);
1268 	SEND_KDMA(cif);
1269 
1270 	writearm(cif, 0x301F8, 1, 1);
1271 	writearm(cif, 0x301F4, 1, 1);
1272 
1273 	SEND_LSEL(cif, MODEM_CMD, 0, 0, MODEM_INTDEC, MODEM_MERGER,
1274 		  MODEM_SPLITTER, MODEM_MIXER);
1275 	setmixer(cif, MODEM_MIXER, 0x7fff, 0x7fff);
1276 	alloclbuspath(cif, ARM2LBUS_FIFO13, lbus_play_modem, NULL, NULL);
1277 
1278 	SEND_LSEL(cif, FM_CMD, 0, 0, FM_INTDEC, FM_MERGER, FM_SPLITTER,
1279 		  FM_MIXER);
1280 	setmixer(cif, FM_MIXER, 0x7fff, 0x7fff);
1281 	writearm(cif, 0x30648 + FM_MIXER * 4, 0x01, 0x00000005);
1282 	writearm(cif, 0x301A8, 0x02, 0x00000002);
1283 	writearm(cif, 0x30264, 0x08, 0xffffffff);
1284 	alloclbuspath(cif, OPL3_SAMPLE, lbus_play_opl3, NULL, NULL);
1285 
1286 	SEND_SSRC(cif, I2S_INTDEC, 48000,
1287 		  ((u32) I2S_RATE * 65536) / 48000,
1288 		  ((u32) I2S_RATE * 65536) % 48000);
1289 	SEND_LSEL(cif, I2S_CMD0, 0, 0, I2S_INTDEC, I2S_MERGER, I2S_SPLITTER,
1290 		  I2S_MIXER);
1291 	SEND_SI2S(cif, 1);
1292 	alloclbuspath(cif, ARM2LBUS_FIFO0, lbus_play_i2s, NULL, NULL);
1293 	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_out, NULL, NULL);
1294 	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_outhp, NULL, NULL);
1295 
1296 	SET_AIACK(cif->hwport);
1297 	SET_AIE(cif->hwport);
1298 	SET_AIACK(cif->hwport);
1299 	cif->is_reset = 1;
1300 
1301 	return 0;
1302 }
1303 
1304 static const struct snd_pcm_hardware snd_riptide_playback = {
1305 	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1306 		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1307 		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1308 	.formats =
1309 	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1310 	    | SNDRV_PCM_FMTBIT_U16_LE,
1311 	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1312 	.rate_min = 5500,
1313 	.rate_max = 48000,
1314 	.channels_min = 1,
1315 	.channels_max = 2,
1316 	.buffer_bytes_max = (64 * 1024),
1317 	.period_bytes_min = PAGE_SIZE >> 1,
1318 	.period_bytes_max = PAGE_SIZE << 8,
1319 	.periods_min = 2,
1320 	.periods_max = 64,
1321 	.fifo_size = 0,
1322 };
1323 static const struct snd_pcm_hardware snd_riptide_capture = {
1324 	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1325 		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1326 		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1327 	.formats =
1328 	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1329 	    | SNDRV_PCM_FMTBIT_U16_LE,
1330 	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1331 	.rate_min = 5500,
1332 	.rate_max = 48000,
1333 	.channels_min = 1,
1334 	.channels_max = 2,
1335 	.buffer_bytes_max = (64 * 1024),
1336 	.period_bytes_min = PAGE_SIZE >> 1,
1337 	.period_bytes_max = PAGE_SIZE << 3,
1338 	.periods_min = 2,
1339 	.periods_max = 64,
1340 	.fifo_size = 0,
1341 };
1342 
1343 static snd_pcm_uframes_t snd_riptide_pointer(struct snd_pcm_substream
1344 					     *substream)
1345 {
1346 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1347 	struct snd_pcm_runtime *runtime = substream->runtime;
1348 	struct pcmhw *data = get_pcmhwdev(substream);
1349 	struct cmdif *cif = chip->cif;
1350 	union cmdret rptr = CMDRET_ZERO;
1351 	snd_pcm_uframes_t ret;
1352 
1353 	SEND_GPOS(cif, 0, data->id, &rptr);
1354 	if (data->size && runtime->period_size) {
1355 		snd_printdd
1356 		    ("pointer stream %d position 0x%x(0x%x in buffer) bytes 0x%lx(0x%lx in period) frames\n",
1357 		     data->id, rptr.retlongs[1], rptr.retlongs[1] % data->size,
1358 		     bytes_to_frames(runtime, rptr.retlongs[1]),
1359 		     bytes_to_frames(runtime,
1360 				     rptr.retlongs[1]) % runtime->period_size);
1361 		if (rptr.retlongs[1] > data->pointer)
1362 			ret =
1363 			    bytes_to_frames(runtime,
1364 					    rptr.retlongs[1] % data->size);
1365 		else
1366 			ret =
1367 			    bytes_to_frames(runtime,
1368 					    data->pointer % data->size);
1369 	} else {
1370 		snd_printdd("stream not started or strange parms (%d %ld)\n",
1371 			    data->size, runtime->period_size);
1372 		ret = bytes_to_frames(runtime, 0);
1373 	}
1374 	return ret;
1375 }
1376 
1377 static int snd_riptide_trigger(struct snd_pcm_substream *substream, int cmd)
1378 {
1379 	int i, j;
1380 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1381 	struct pcmhw *data = get_pcmhwdev(substream);
1382 	struct cmdif *cif = chip->cif;
1383 	union cmdret rptr = CMDRET_ZERO;
1384 
1385 	spin_lock(&chip->lock);
1386 	switch (cmd) {
1387 	case SNDRV_PCM_TRIGGER_START:
1388 	case SNDRV_PCM_TRIGGER_RESUME:
1389 		if (!(data->state & ST_PLAY)) {
1390 			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1391 			SET_AIE(cif->hwport);
1392 			data->state = ST_PLAY;
1393 			if (data->mixer != 0xff)
1394 				setmixer(cif, data->mixer, 0x7fff, 0x7fff);
1395 			chip->openstreams++;
1396 			data->oldpos = 0;
1397 			data->pointer = 0;
1398 		}
1399 		break;
1400 	case SNDRV_PCM_TRIGGER_STOP:
1401 	case SNDRV_PCM_TRIGGER_SUSPEND:
1402 		if (data->mixer != 0xff)
1403 			setmixer(cif, data->mixer, 0, 0);
1404 		setmixer(cif, data->mixer, 0, 0);
1405 		SEND_KSTR(cif, data->id);
1406 		data->state = ST_STOP;
1407 		chip->openstreams--;
1408 		j = 0;
1409 		do {
1410 			i = rptr.retlongs[1];
1411 			SEND_GPOS(cif, 0, data->id, &rptr);
1412 			udelay(1);
1413 		} while (i != rptr.retlongs[1] && j++ < MAX_WRITE_RETRY);
1414 		if (j > MAX_WRITE_RETRY)
1415 			snd_printk(KERN_ERR "Riptide: Could not stop stream!");
1416 		break;
1417 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1418 		if (!(data->state & ST_PAUSE)) {
1419 			SEND_PSTR(cif, data->id);
1420 			data->state |= ST_PAUSE;
1421 			chip->openstreams--;
1422 		}
1423 		break;
1424 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1425 		if (data->state & ST_PAUSE) {
1426 			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1427 			data->state &= ~ST_PAUSE;
1428 			chip->openstreams++;
1429 		}
1430 		break;
1431 	default:
1432 		spin_unlock(&chip->lock);
1433 		return -EINVAL;
1434 	}
1435 	spin_unlock(&chip->lock);
1436 	return 0;
1437 }
1438 
1439 static int snd_riptide_prepare(struct snd_pcm_substream *substream)
1440 {
1441 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1442 	struct snd_pcm_runtime *runtime = substream->runtime;
1443 	struct pcmhw *data = get_pcmhwdev(substream);
1444 	struct cmdif *cif = chip->cif;
1445 	const unsigned char *lbuspath = NULL;
1446 	unsigned int rate, channels;
1447 	int err = 0;
1448 	snd_pcm_format_t format;
1449 
1450 	if (snd_BUG_ON(!cif || !data))
1451 		return -EINVAL;
1452 
1453 	snd_printdd("prepare id %d ch: %d f:0x%x r:%d\n", data->id,
1454 		    runtime->channels, runtime->format, runtime->rate);
1455 
1456 	spin_lock_irq(&chip->lock);
1457 	channels = runtime->channels;
1458 	format = runtime->format;
1459 	rate = runtime->rate;
1460 	switch (channels) {
1461 	case 1:
1462 		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1463 			lbuspath = data->paths.noconv;
1464 		else
1465 			lbuspath = data->paths.mono;
1466 		break;
1467 	case 2:
1468 		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1469 			lbuspath = data->paths.noconv;
1470 		else
1471 			lbuspath = data->paths.stereo;
1472 		break;
1473 	}
1474 	snd_printdd("use sgdlist at 0x%p\n",
1475 		    data->sgdlist.area);
1476 	if (data->sgdlist.area) {
1477 		unsigned int i, j, size, pages, f, pt, period;
1478 		struct sgd *c, *p = NULL;
1479 
1480 		size = frames_to_bytes(runtime, runtime->buffer_size);
1481 		period = frames_to_bytes(runtime, runtime->period_size);
1482 		f = PAGE_SIZE;
1483 		while ((size + (f >> 1) - 1) <= (f << 7) && (f << 1) > period)
1484 			f = f >> 1;
1485 		pages = DIV_ROUND_UP(size, f);
1486 		data->size = size;
1487 		data->pages = pages;
1488 		snd_printdd
1489 		    ("create sgd size: 0x%x pages %d of size 0x%x for period 0x%x\n",
1490 		     size, pages, f, period);
1491 		pt = 0;
1492 		j = 0;
1493 		for (i = 0; i < pages; i++) {
1494 			unsigned int ofs, addr;
1495 			c = &data->sgdbuf[i];
1496 			if (p)
1497 				p->dwNextLink = cpu_to_le32(data->sgdlist.addr +
1498 							    (i *
1499 							     sizeof(struct
1500 								    sgd)));
1501 			c->dwNextLink = cpu_to_le32(data->sgdlist.addr);
1502 			ofs = j << PAGE_SHIFT;
1503 			addr = snd_pcm_sgbuf_get_addr(substream, ofs) + pt;
1504 			c->dwSegPtrPhys = cpu_to_le32(addr);
1505 			pt = (pt + f) % PAGE_SIZE;
1506 			if (pt == 0)
1507 				j++;
1508 			c->dwSegLen = cpu_to_le32(f);
1509 			c->dwStat_Ctl =
1510 			    cpu_to_le32(IEOB_ENABLE | IEOS_ENABLE |
1511 					IEOC_ENABLE);
1512 			p = c;
1513 			size -= f;
1514 		}
1515 		data->sgdbuf[i].dwSegLen = cpu_to_le32(size);
1516 	}
1517 	if (lbuspath && lbuspath != data->lbuspath) {
1518 		if (data->lbuspath)
1519 			freelbuspath(cif, data->source, data->lbuspath);
1520 		alloclbuspath(cif, data->source, lbuspath,
1521 			      &data->mixer, data->intdec);
1522 		data->lbuspath = lbuspath;
1523 		data->rate = 0;
1524 	}
1525 	if (data->rate != rate || data->format != format ||
1526 	    data->channels != channels) {
1527 		data->rate = rate;
1528 		data->format = format;
1529 		data->channels = channels;
1530 		if (setsampleformat
1531 		    (cif, data->mixer, data->id, channels, format)
1532 		    || setsamplerate(cif, data->intdec, rate))
1533 			err = -EIO;
1534 	}
1535 	spin_unlock_irq(&chip->lock);
1536 	return err;
1537 }
1538 
1539 static int
1540 snd_riptide_hw_params(struct snd_pcm_substream *substream,
1541 		      struct snd_pcm_hw_params *hw_params)
1542 {
1543 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1544 	struct pcmhw *data = get_pcmhwdev(substream);
1545 	struct snd_dma_buffer *sgdlist = &data->sgdlist;
1546 	int err;
1547 
1548 	snd_printdd("hw params id %d (sgdlist: 0x%p 0x%lx %d)\n", data->id,
1549 		    sgdlist->area, (unsigned long)sgdlist->addr,
1550 		    (int)sgdlist->bytes);
1551 	if (sgdlist->area)
1552 		snd_dma_free_pages(sgdlist);
1553 	if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
1554 				       &chip->pci->dev,
1555 				       sizeof(struct sgd) * (DESC_MAX_MASK + 1),
1556 				       sgdlist)) < 0) {
1557 		snd_printk(KERN_ERR "Riptide: failed to alloc %d dma bytes\n",
1558 			   (int)sizeof(struct sgd) * (DESC_MAX_MASK + 1));
1559 		return err;
1560 	}
1561 	data->sgdbuf = (struct sgd *)sgdlist->area;
1562 	return 0;
1563 }
1564 
1565 static int snd_riptide_hw_free(struct snd_pcm_substream *substream)
1566 {
1567 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1568 	struct pcmhw *data = get_pcmhwdev(substream);
1569 	struct cmdif *cif = chip->cif;
1570 
1571 	if (cif && data) {
1572 		if (data->lbuspath)
1573 			freelbuspath(cif, data->source, data->lbuspath);
1574 		data->lbuspath = NULL;
1575 		data->source = 0xff;
1576 		data->intdec[0] = 0xff;
1577 		data->intdec[1] = 0xff;
1578 
1579 		if (data->sgdlist.area) {
1580 			snd_dma_free_pages(&data->sgdlist);
1581 			data->sgdlist.area = NULL;
1582 		}
1583 	}
1584 	return 0;
1585 }
1586 
1587 static int snd_riptide_playback_open(struct snd_pcm_substream *substream)
1588 {
1589 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1590 	struct snd_pcm_runtime *runtime = substream->runtime;
1591 	struct pcmhw *data;
1592 	int sub_num = substream->number;
1593 
1594 	chip->playback_substream[sub_num] = substream;
1595 	runtime->hw = snd_riptide_playback;
1596 
1597 	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
1598 	if (data == NULL)
1599 		return -ENOMEM;
1600 	data->paths = lbus_play_paths[sub_num];
1601 	data->id = play_ids[sub_num];
1602 	data->source = play_sources[sub_num];
1603 	data->intdec[0] = 0xff;
1604 	data->intdec[1] = 0xff;
1605 	data->state = ST_STOP;
1606 	runtime->private_data = data;
1607 	return snd_pcm_hw_constraint_integer(runtime,
1608 					     SNDRV_PCM_HW_PARAM_PERIODS);
1609 }
1610 
1611 static int snd_riptide_capture_open(struct snd_pcm_substream *substream)
1612 {
1613 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1614 	struct snd_pcm_runtime *runtime = substream->runtime;
1615 	struct pcmhw *data;
1616 
1617 	chip->capture_substream = substream;
1618 	runtime->hw = snd_riptide_capture;
1619 
1620 	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
1621 	if (data == NULL)
1622 		return -ENOMEM;
1623 	data->paths = lbus_rec_path;
1624 	data->id = PADC;
1625 	data->source = ACLNK2PADC;
1626 	data->intdec[0] = 0xff;
1627 	data->intdec[1] = 0xff;
1628 	data->state = ST_STOP;
1629 	runtime->private_data = data;
1630 	return snd_pcm_hw_constraint_integer(runtime,
1631 					     SNDRV_PCM_HW_PARAM_PERIODS);
1632 }
1633 
1634 static int snd_riptide_playback_close(struct snd_pcm_substream *substream)
1635 {
1636 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1637 	struct pcmhw *data = get_pcmhwdev(substream);
1638 	int sub_num = substream->number;
1639 
1640 	substream->runtime->private_data = NULL;
1641 	chip->playback_substream[sub_num] = NULL;
1642 	kfree(data);
1643 	return 0;
1644 }
1645 
1646 static int snd_riptide_capture_close(struct snd_pcm_substream *substream)
1647 {
1648 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1649 	struct pcmhw *data = get_pcmhwdev(substream);
1650 
1651 	substream->runtime->private_data = NULL;
1652 	chip->capture_substream = NULL;
1653 	kfree(data);
1654 	return 0;
1655 }
1656 
1657 static const struct snd_pcm_ops snd_riptide_playback_ops = {
1658 	.open = snd_riptide_playback_open,
1659 	.close = snd_riptide_playback_close,
1660 	.hw_params = snd_riptide_hw_params,
1661 	.hw_free = snd_riptide_hw_free,
1662 	.prepare = snd_riptide_prepare,
1663 	.trigger = snd_riptide_trigger,
1664 	.pointer = snd_riptide_pointer,
1665 };
1666 static const struct snd_pcm_ops snd_riptide_capture_ops = {
1667 	.open = snd_riptide_capture_open,
1668 	.close = snd_riptide_capture_close,
1669 	.hw_params = snd_riptide_hw_params,
1670 	.hw_free = snd_riptide_hw_free,
1671 	.prepare = snd_riptide_prepare,
1672 	.trigger = snd_riptide_trigger,
1673 	.pointer = snd_riptide_pointer,
1674 };
1675 
1676 static int snd_riptide_pcm(struct snd_riptide *chip, int device)
1677 {
1678 	struct snd_pcm *pcm;
1679 	int err;
1680 
1681 	if ((err =
1682 	     snd_pcm_new(chip->card, "RIPTIDE", device, PLAYBACK_SUBSTREAMS, 1,
1683 			 &pcm)) < 0)
1684 		return err;
1685 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1686 			&snd_riptide_playback_ops);
1687 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1688 			&snd_riptide_capture_ops);
1689 	pcm->private_data = chip;
1690 	pcm->info_flags = 0;
1691 	strcpy(pcm->name, "RIPTIDE");
1692 	chip->pcm = pcm;
1693 	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1694 				       &chip->pci->dev, 64 * 1024, 128 * 1024);
1695 	return 0;
1696 }
1697 
1698 static irqreturn_t
1699 snd_riptide_interrupt(int irq, void *dev_id)
1700 {
1701 	struct snd_riptide *chip = dev_id;
1702 	struct cmdif *cif = chip->cif;
1703 	irqreturn_t ret = IRQ_HANDLED;
1704 
1705 	if (cif) {
1706 		chip->received_irqs++;
1707 		if (IS_EOBIRQ(cif->hwport) || IS_EOSIRQ(cif->hwport) ||
1708 		    IS_EOCIRQ(cif->hwport)) {
1709 			chip->handled_irqs++;
1710 			ret = IRQ_WAKE_THREAD;
1711 		}
1712 		if (chip->rmidi && IS_MPUIRQ(cif->hwport)) {
1713 			chip->handled_irqs++;
1714 			snd_mpu401_uart_interrupt(irq,
1715 						  chip->rmidi->private_data);
1716 		}
1717 		SET_AIACK(cif->hwport);
1718 	}
1719 	return ret;
1720 }
1721 
1722 static void
1723 snd_riptide_codec_write(struct snd_ac97 *ac97, unsigned short reg,
1724 			unsigned short val)
1725 {
1726 	struct snd_riptide *chip = ac97->private_data;
1727 	struct cmdif *cif = chip->cif;
1728 	union cmdret rptr = CMDRET_ZERO;
1729 	int i = 0;
1730 
1731 	if (snd_BUG_ON(!cif))
1732 		return;
1733 
1734 	snd_printdd("Write AC97 reg 0x%x 0x%x\n", reg, val);
1735 	do {
1736 		SEND_SACR(cif, val, reg);
1737 		SEND_RACR(cif, reg, &rptr);
1738 	} while (rptr.retwords[1] != val && i++ < MAX_WRITE_RETRY);
1739 	if (i > MAX_WRITE_RETRY)
1740 		snd_printdd("Write AC97 reg failed\n");
1741 }
1742 
1743 static unsigned short snd_riptide_codec_read(struct snd_ac97 *ac97,
1744 					     unsigned short reg)
1745 {
1746 	struct snd_riptide *chip = ac97->private_data;
1747 	struct cmdif *cif = chip->cif;
1748 	union cmdret rptr = CMDRET_ZERO;
1749 
1750 	if (snd_BUG_ON(!cif))
1751 		return 0;
1752 
1753 	if (SEND_RACR(cif, reg, &rptr) != 0)
1754 		SEND_RACR(cif, reg, &rptr);
1755 	snd_printdd("Read AC97 reg 0x%x got 0x%x\n", reg, rptr.retwords[1]);
1756 	return rptr.retwords[1];
1757 }
1758 
1759 static int snd_riptide_initialize(struct snd_riptide *chip)
1760 {
1761 	struct cmdif *cif;
1762 	unsigned int device_id;
1763 	int err;
1764 
1765 	if (snd_BUG_ON(!chip))
1766 		return -EINVAL;
1767 
1768 	cif = chip->cif;
1769 	if (!cif) {
1770 		if ((cif = kzalloc(sizeof(struct cmdif), GFP_KERNEL)) == NULL)
1771 			return -ENOMEM;
1772 		cif->hwport = (struct riptideport *)chip->port;
1773 		spin_lock_init(&cif->lock);
1774 		chip->cif = cif;
1775 	}
1776 	cif->is_reset = 0;
1777 	if ((err = riptide_reset(cif, chip)) != 0)
1778 		return err;
1779 	device_id = chip->device_id;
1780 	switch (device_id) {
1781 	case 0x4310:
1782 	case 0x4320:
1783 	case 0x4330:
1784 		snd_printdd("Modem enable?\n");
1785 		SEND_SETDPLL(cif);
1786 		break;
1787 	}
1788 	snd_printdd("Enabling MPU IRQs\n");
1789 	if (chip->rmidi)
1790 		SET_EMPUIRQ(cif->hwport);
1791 	return err;
1792 }
1793 
1794 static int snd_riptide_free(struct snd_riptide *chip)
1795 {
1796 	struct cmdif *cif;
1797 
1798 	if (!chip)
1799 		return 0;
1800 
1801 	if ((cif = chip->cif)) {
1802 		SET_GRESET(cif->hwport);
1803 		udelay(100);
1804 		UNSET_GRESET(cif->hwport);
1805 		kfree(chip->cif);
1806 	}
1807 	if (chip->irq >= 0)
1808 		free_irq(chip->irq, chip);
1809 	release_firmware(chip->fw_entry);
1810 	release_and_free_resource(chip->res_port);
1811 	kfree(chip);
1812 	return 0;
1813 }
1814 
1815 static int snd_riptide_dev_free(struct snd_device *device)
1816 {
1817 	struct snd_riptide *chip = device->device_data;
1818 
1819 	return snd_riptide_free(chip);
1820 }
1821 
1822 static int
1823 snd_riptide_create(struct snd_card *card, struct pci_dev *pci,
1824 		   struct snd_riptide **rchip)
1825 {
1826 	struct snd_riptide *chip;
1827 	struct riptideport *hwport;
1828 	int err;
1829 	static const struct snd_device_ops ops = {
1830 		.dev_free = snd_riptide_dev_free,
1831 	};
1832 
1833 	*rchip = NULL;
1834 	if ((err = pci_enable_device(pci)) < 0)
1835 		return err;
1836 	if (!(chip = kzalloc(sizeof(struct snd_riptide), GFP_KERNEL)))
1837 		return -ENOMEM;
1838 
1839 	spin_lock_init(&chip->lock);
1840 	chip->card = card;
1841 	chip->pci = pci;
1842 	chip->irq = -1;
1843 	chip->openstreams = 0;
1844 	chip->port = pci_resource_start(pci, 0);
1845 	chip->received_irqs = 0;
1846 	chip->handled_irqs = 0;
1847 	chip->cif = NULL;
1848 
1849 	if ((chip->res_port =
1850 	     request_region(chip->port, 64, "RIPTIDE")) == NULL) {
1851 		snd_printk(KERN_ERR
1852 			   "Riptide: unable to grab region 0x%lx-0x%lx\n",
1853 			   chip->port, chip->port + 64 - 1);
1854 		snd_riptide_free(chip);
1855 		return -EBUSY;
1856 	}
1857 	hwport = (struct riptideport *)chip->port;
1858 	UNSET_AIE(hwport);
1859 
1860 	if (request_threaded_irq(pci->irq, snd_riptide_interrupt,
1861 				 riptide_handleirq, IRQF_SHARED,
1862 				 KBUILD_MODNAME, chip)) {
1863 		snd_printk(KERN_ERR "Riptide: unable to grab IRQ %d\n",
1864 			   pci->irq);
1865 		snd_riptide_free(chip);
1866 		return -EBUSY;
1867 	}
1868 	chip->irq = pci->irq;
1869 	card->sync_irq = chip->irq;
1870 	chip->device_id = pci->device;
1871 	pci_set_master(pci);
1872 	if ((err = snd_riptide_initialize(chip)) < 0) {
1873 		snd_riptide_free(chip);
1874 		return err;
1875 	}
1876 
1877 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1878 		snd_riptide_free(chip);
1879 		return err;
1880 	}
1881 
1882 	*rchip = chip;
1883 	return 0;
1884 }
1885 
1886 static void
1887 snd_riptide_proc_read(struct snd_info_entry *entry,
1888 		      struct snd_info_buffer *buffer)
1889 {
1890 	struct snd_riptide *chip = entry->private_data;
1891 	struct pcmhw *data;
1892 	int i;
1893 	struct cmdif *cif = NULL;
1894 	unsigned char p[256];
1895 	unsigned short rval = 0, lval = 0;
1896 	unsigned int rate;
1897 
1898 	if (!chip)
1899 		return;
1900 
1901 	snd_iprintf(buffer, "%s\n\n", chip->card->longname);
1902 	snd_iprintf(buffer, "Device ID: 0x%x\nReceived IRQs: (%ld)%ld\nPorts:",
1903 		    chip->device_id, chip->handled_irqs, chip->received_irqs);
1904 	for (i = 0; i < 64; i += 4)
1905 		snd_iprintf(buffer, "%c%02x: %08x",
1906 			    (i % 16) ? ' ' : '\n', i, inl(chip->port + i));
1907 	if ((cif = chip->cif)) {
1908 		snd_iprintf(buffer,
1909 			    "\nVersion: ASIC: %d CODEC: %d AUXDSP: %d PROG: %d",
1910 			    chip->firmware.firmware.ASIC,
1911 			    chip->firmware.firmware.CODEC,
1912 			    chip->firmware.firmware.AUXDSP,
1913 			    chip->firmware.firmware.PROG);
1914 		snd_iprintf(buffer, "\nDigital mixer:");
1915 		for (i = 0; i < 12; i++) {
1916 			getmixer(cif, i, &rval, &lval);
1917 			snd_iprintf(buffer, "\n %d: %d %d", i, rval, lval);
1918 		}
1919 		snd_iprintf(buffer,
1920 			    "\nARM Commands num: %d failed: %d time: %d max: %d min: %d",
1921 			    cif->cmdcnt, cif->errcnt,
1922 			    cif->cmdtime, cif->cmdtimemax, cif->cmdtimemin);
1923 	}
1924 	snd_iprintf(buffer, "\nOpen streams %d:\n", chip->openstreams);
1925 	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++) {
1926 		if (chip->playback_substream[i]
1927 		    && chip->playback_substream[i]->runtime
1928 		    && (data =
1929 			chip->playback_substream[i]->runtime->private_data)) {
1930 			snd_iprintf(buffer,
1931 				    "stream: %d mixer: %d source: %d (%d,%d)\n",
1932 				    data->id, data->mixer, data->source,
1933 				    data->intdec[0], data->intdec[1]);
1934 			if (!(getsamplerate(cif, data->intdec, &rate)))
1935 				snd_iprintf(buffer, "rate: %d\n", rate);
1936 		}
1937 	}
1938 	if (chip->capture_substream
1939 	    && chip->capture_substream->runtime
1940 	    && (data = chip->capture_substream->runtime->private_data)) {
1941 		snd_iprintf(buffer,
1942 			    "stream: %d mixer: %d source: %d (%d,%d)\n",
1943 			    data->id, data->mixer,
1944 			    data->source, data->intdec[0], data->intdec[1]);
1945 		if (!(getsamplerate(cif, data->intdec, &rate)))
1946 			snd_iprintf(buffer, "rate: %d\n", rate);
1947 	}
1948 	snd_iprintf(buffer, "Paths:\n");
1949 	i = getpaths(cif, p);
1950 	while (i >= 2) {
1951 		i -= 2;
1952 		snd_iprintf(buffer, "%x->%x ", p[i], p[i + 1]);
1953 	}
1954 	snd_iprintf(buffer, "\n");
1955 }
1956 
1957 static void snd_riptide_proc_init(struct snd_riptide *chip)
1958 {
1959 	snd_card_ro_proc_new(chip->card, "riptide", chip,
1960 			     snd_riptide_proc_read);
1961 }
1962 
1963 static int snd_riptide_mixer(struct snd_riptide *chip)
1964 {
1965 	struct snd_ac97_bus *pbus;
1966 	struct snd_ac97_template ac97;
1967 	int err = 0;
1968 	static const struct snd_ac97_bus_ops ops = {
1969 		.write = snd_riptide_codec_write,
1970 		.read = snd_riptide_codec_read,
1971 	};
1972 
1973 	memset(&ac97, 0, sizeof(ac97));
1974 	ac97.private_data = chip;
1975 	ac97.scaps = AC97_SCAP_SKIP_MODEM;
1976 
1977 	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
1978 		return err;
1979 
1980 	chip->ac97_bus = pbus;
1981 	ac97.pci = chip->pci;
1982 	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
1983 		return err;
1984 	return err;
1985 }
1986 
1987 #ifdef SUPPORT_JOYSTICK
1988 
1989 static int
1990 snd_riptide_joystick_probe(struct pci_dev *pci, const struct pci_device_id *id)
1991 {
1992 	static int dev;
1993 	struct gameport *gameport;
1994 	int ret;
1995 
1996 	if (dev >= SNDRV_CARDS)
1997 		return -ENODEV;
1998 
1999 	if (!enable[dev]) {
2000 		ret = -ENOENT;
2001 		goto inc_dev;
2002 	}
2003 
2004 	if (!joystick_port[dev]) {
2005 		ret = 0;
2006 		goto inc_dev;
2007 	}
2008 
2009 	gameport = gameport_allocate_port();
2010 	if (!gameport) {
2011 		ret = -ENOMEM;
2012 		goto inc_dev;
2013 	}
2014 	if (!request_region(joystick_port[dev], 8, "Riptide gameport")) {
2015 		snd_printk(KERN_WARNING
2016 			   "Riptide: cannot grab gameport 0x%x\n",
2017 			   joystick_port[dev]);
2018 		gameport_free_port(gameport);
2019 		ret = -EBUSY;
2020 		goto inc_dev;
2021 	}
2022 
2023 	gameport->io = joystick_port[dev];
2024 	gameport_register_port(gameport);
2025 	pci_set_drvdata(pci, gameport);
2026 
2027 	ret = 0;
2028 inc_dev:
2029 	dev++;
2030 	return ret;
2031 }
2032 
2033 static void snd_riptide_joystick_remove(struct pci_dev *pci)
2034 {
2035 	struct gameport *gameport = pci_get_drvdata(pci);
2036 	if (gameport) {
2037 		release_region(gameport->io, 8);
2038 		gameport_unregister_port(gameport);
2039 	}
2040 }
2041 #endif
2042 
2043 static int
2044 snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2045 {
2046 	static int dev;
2047 	struct snd_card *card;
2048 	struct snd_riptide *chip;
2049 	unsigned short val;
2050 	int err;
2051 
2052 	if (dev >= SNDRV_CARDS)
2053 		return -ENODEV;
2054 	if (!enable[dev]) {
2055 		dev++;
2056 		return -ENOENT;
2057 	}
2058 
2059 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2060 			   0, &card);
2061 	if (err < 0)
2062 		return err;
2063 	err = snd_riptide_create(card, pci, &chip);
2064 	if (err < 0)
2065 		goto error;
2066 	card->private_data = chip;
2067 	err = snd_riptide_pcm(chip, 0);
2068 	if (err < 0)
2069 		goto error;
2070 	err = snd_riptide_mixer(chip);
2071 	if (err < 0)
2072 		goto error;
2073 
2074 	val = LEGACY_ENABLE_ALL;
2075 	if (opl3_port[dev])
2076 		val |= LEGACY_ENABLE_FM;
2077 #ifdef SUPPORT_JOYSTICK
2078 	if (joystick_port[dev])
2079 		val |= LEGACY_ENABLE_GAMEPORT;
2080 #endif
2081 	if (mpu_port[dev])
2082 		val |= LEGACY_ENABLE_MPU_INT | LEGACY_ENABLE_MPU;
2083 	val |= (chip->irq << 4) & 0xf0;
2084 	pci_write_config_word(chip->pci, PCI_EXT_Legacy_Mask, val);
2085 	if (mpu_port[dev]) {
2086 		val = mpu_port[dev];
2087 		pci_write_config_word(chip->pci, PCI_EXT_MPU_Base, val);
2088 		err = snd_mpu401_uart_new(card, 0, MPU401_HW_RIPTIDE,
2089 					  val, MPU401_INFO_IRQ_HOOK, -1,
2090 					  &chip->rmidi);
2091 		if (err < 0)
2092 			snd_printk(KERN_WARNING
2093 				   "Riptide: Can't Allocate MPU at 0x%x\n",
2094 				   val);
2095 		else
2096 			chip->mpuaddr = val;
2097 	}
2098 	if (opl3_port[dev]) {
2099 		val = opl3_port[dev];
2100 		pci_write_config_word(chip->pci, PCI_EXT_FM_Base, val);
2101 		err = snd_opl3_create(card, val, val + 2,
2102 				      OPL3_HW_RIPTIDE, 0, &chip->opl3);
2103 		if (err < 0)
2104 			snd_printk(KERN_WARNING
2105 				   "Riptide: Can't Allocate OPL3 at 0x%x\n",
2106 				   val);
2107 		else {
2108 			chip->opladdr = val;
2109 			err = snd_opl3_hwdep_new(chip->opl3, 0, 1, NULL);
2110 			if (err < 0)
2111 				snd_printk(KERN_WARNING
2112 					   "Riptide: Can't Allocate OPL3-HWDEP\n");
2113 		}
2114 	}
2115 #ifdef SUPPORT_JOYSTICK
2116 	if (joystick_port[dev]) {
2117 		val = joystick_port[dev];
2118 		pci_write_config_word(chip->pci, PCI_EXT_Game_Base, val);
2119 		chip->gameaddr = val;
2120 	}
2121 #endif
2122 
2123 	strcpy(card->driver, "RIPTIDE");
2124 	strcpy(card->shortname, "Riptide");
2125 #ifdef SUPPORT_JOYSTICK
2126 	snprintf(card->longname, sizeof(card->longname),
2127 		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x gameport 0x%x",
2128 		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
2129 		 chip->opladdr, chip->gameaddr);
2130 #else
2131 	snprintf(card->longname, sizeof(card->longname),
2132 		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x",
2133 		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
2134 		 chip->opladdr);
2135 #endif
2136 	snd_riptide_proc_init(chip);
2137 	err = snd_card_register(card);
2138 	if (err < 0)
2139 		goto error;
2140 	pci_set_drvdata(pci, card);
2141 	dev++;
2142 	return 0;
2143 
2144  error:
2145 	snd_card_free(card);
2146 	return err;
2147 }
2148 
2149 static void snd_card_riptide_remove(struct pci_dev *pci)
2150 {
2151 	snd_card_free(pci_get_drvdata(pci));
2152 }
2153 
2154 static struct pci_driver driver = {
2155 	.name = KBUILD_MODNAME,
2156 	.id_table = snd_riptide_ids,
2157 	.probe = snd_card_riptide_probe,
2158 	.remove = snd_card_riptide_remove,
2159 	.driver = {
2160 		.pm = RIPTIDE_PM_OPS,
2161 	},
2162 };
2163 
2164 #ifdef SUPPORT_JOYSTICK
2165 static struct pci_driver joystick_driver = {
2166 	.name = KBUILD_MODNAME "-joystick",
2167 	.id_table = snd_riptide_joystick_ids,
2168 	.probe = snd_riptide_joystick_probe,
2169 	.remove = snd_riptide_joystick_remove,
2170 };
2171 #endif
2172 
2173 static int __init alsa_card_riptide_init(void)
2174 {
2175 	int err;
2176 	err = pci_register_driver(&driver);
2177 	if (err < 0)
2178 		return err;
2179 #if defined(SUPPORT_JOYSTICK)
2180 	err = pci_register_driver(&joystick_driver);
2181 	/* On failure unregister formerly registered audio driver */
2182 	if (err < 0)
2183 		pci_unregister_driver(&driver);
2184 #endif
2185 	return err;
2186 }
2187 
2188 static void __exit alsa_card_riptide_exit(void)
2189 {
2190 	pci_unregister_driver(&driver);
2191 #if defined(SUPPORT_JOYSTICK)
2192 	pci_unregister_driver(&joystick_driver);
2193 #endif
2194 }
2195 
2196 module_init(alsa_card_riptide_init);
2197 module_exit(alsa_card_riptide_exit);
2198