xref: /openbmc/linux/sound/pci/riptide/riptide.c (revision 715f23b6)
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 	unsigned char *noconv;
365 	unsigned char *stereo;
366 	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 tasklet_struct riptide_tq;
449 	struct snd_info_entry *proc_entry;
450 
451 	unsigned long received_irqs;
452 	unsigned long handled_irqs;
453 #ifdef CONFIG_PM_SLEEP
454 	int in_suspend;
455 #endif
456 };
457 
458 struct sgd {			/* scatter gather desriptor */
459 	__le32 dwNextLink;
460 	__le32 dwSegPtrPhys;
461 	__le32 dwSegLen;
462 	__le32 dwStat_Ctl;
463 };
464 
465 struct pcmhw {			/* pcm descriptor */
466 	struct lbuspath paths;
467 	unsigned char *lbuspath;
468 	unsigned char source;
469 	unsigned char intdec[2];
470 	unsigned char mixer;
471 	unsigned char id;
472 	unsigned char state;
473 	unsigned int rate;
474 	unsigned int channels;
475 	snd_pcm_format_t format;
476 	struct snd_dma_buffer sgdlist;
477 	struct sgd *sgdbuf;
478 	unsigned int size;
479 	unsigned int pages;
480 	unsigned int oldpos;
481 	unsigned int pointer;
482 };
483 
484 #define CMDRET_ZERO (union cmdret){{(u32)0, (u32) 0}}
485 
486 static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
487 		   union cmdret *ret);
488 static int getsourcesink(struct cmdif *cif, unsigned char source,
489 			 unsigned char sink, unsigned char *a,
490 			 unsigned char *b);
491 static int snd_riptide_initialize(struct snd_riptide *chip);
492 static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip);
493 
494 /*
495  */
496 
497 static const struct pci_device_id snd_riptide_ids[] = {
498 	{ PCI_DEVICE(0x127a, 0x4310) },
499 	{ PCI_DEVICE(0x127a, 0x4320) },
500 	{ PCI_DEVICE(0x127a, 0x4330) },
501 	{ PCI_DEVICE(0x127a, 0x4340) },
502 	{0,},
503 };
504 
505 #ifdef SUPPORT_JOYSTICK
506 static const struct pci_device_id snd_riptide_joystick_ids[] = {
507 	{ PCI_DEVICE(0x127a, 0x4312) },
508 	{ PCI_DEVICE(0x127a, 0x4322) },
509 	{ PCI_DEVICE(0x127a, 0x4332) },
510 	{ PCI_DEVICE(0x127a, 0x4342) },
511 	{0,},
512 };
513 #endif
514 
515 MODULE_DEVICE_TABLE(pci, snd_riptide_ids);
516 
517 /*
518  */
519 
520 static unsigned char lbusin2out[E2SINK_MAX + 1][2] = {
521 	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
522 								     LS_NONE2},
523 	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
524 								     LS_NONE2},
525 	{INTER0_OUT, LS_SRC_INTERPOLATOR}, {INTER1_OUT, LS_SRC_INTERPOLATOR},
526 	{INTER2_OUT, LS_SRC_INTERPOLATOR}, {INTER3_OUT, LS_SRC_INTERPOLATOR},
527 	{INTER4_OUT, LS_SRC_INTERPOLATOR}, {INTERM0_OUT, LS_SRC_INTERPOLATORM},
528 	{INTERM1_OUT, LS_SRC_INTERPOLATORM}, {INTERM2_OUT,
529 					      LS_SRC_INTERPOLATORM},
530 	{INTERM3_OUT, LS_SRC_INTERPOLATORM}, {INTERM4_OUT,
531 					      LS_SRC_INTERPOLATORM},
532 	{INTERM5_OUT, LS_SRC_INTERPOLATORM}, {INTERM6_OUT,
533 					      LS_SRC_INTERPOLATORM},
534 	{DECIMM0_OUT, LS_SRC_DECIMATORM}, {DECIMM1_OUT, LS_SRC_DECIMATORM},
535 	{DECIMM2_OUT, LS_SRC_DECIMATORM}, {DECIMM3_OUT, LS_SRC_DECIMATORM},
536 	{DECIM0_OUT, LS_SRC_DECIMATOR}, {SR3_4_OUT, LS_NONE1}, {NO_OUT,
537 								LS_NONE2},
538 	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1},
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 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
545 	{GAINFUNC0_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC1_OUT,
546 						  LS_MIXER_GAIN_FUNCTION},
547 	{GAINFUNC2_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC3_OUT,
548 						  LS_MIXER_GAIN_FUNCTION},
549 	{GAINFUNC4_OUT, LS_MIXER_GAIN_FUNCTION}, {SOFTMODEMTX, LS_NONE1},
550 	{SPLITTER0_OUTL, LS_SRC_SPLITTER}, {SPLITTER1_OUTL, LS_SRC_SPLITTER},
551 	{SPLITTER2_OUTL, LS_SRC_SPLITTER}, {SPLITTER3_OUTL, LS_SRC_SPLITTER},
552 	{MERGER0_OUT, LS_SRC_MERGER}, {MERGER0_OUT, LS_SRC_MERGER},
553 	{MERGER1_OUT, LS_SRC_MERGER},
554 	{MERGER1_OUT, LS_SRC_MERGER}, {MERGER2_OUT, LS_SRC_MERGER},
555 	{MERGER2_OUT, LS_SRC_MERGER},
556 	{MERGER3_OUT, LS_SRC_MERGER}, {MERGER3_OUT, LS_SRC_MERGER}, {NO_OUT,
557 								     LS_NONE2},
558 };
559 
560 static unsigned char lbus_play_opl3[] = {
561 	DIGITAL_MIXER_IN0 + FM_MIXER, 0xff
562 };
563 static unsigned char lbus_play_modem[] = {
564 	DIGITAL_MIXER_IN0 + MODEM_MIXER, 0xff
565 };
566 static unsigned char lbus_play_i2s[] = {
567 	INTER0_IN + I2S_INTDEC, DIGITAL_MIXER_IN0 + I2S_MIXER, 0xff
568 };
569 static unsigned char lbus_play_out[] = {
570 	PDAC2ACLNK, 0xff
571 };
572 static unsigned char lbus_play_outhp[] = {
573 	HNDSPK2ACLNK, 0xff
574 };
575 static unsigned char lbus_play_noconv1[] = {
576 	DIGITAL_MIXER_IN0, 0xff
577 };
578 static unsigned char lbus_play_stereo1[] = {
579 	INTER0_IN, DIGITAL_MIXER_IN0, 0xff
580 };
581 static unsigned char lbus_play_mono1[] = {
582 	INTERM0_IN, DIGITAL_MIXER_IN0, 0xff
583 };
584 static unsigned char lbus_play_noconv2[] = {
585 	DIGITAL_MIXER_IN1, 0xff
586 };
587 static unsigned char lbus_play_stereo2[] = {
588 	INTER1_IN, DIGITAL_MIXER_IN1, 0xff
589 };
590 static unsigned char lbus_play_mono2[] = {
591 	INTERM1_IN, DIGITAL_MIXER_IN1, 0xff
592 };
593 static unsigned char lbus_play_noconv3[] = {
594 	DIGITAL_MIXER_IN2, 0xff
595 };
596 static unsigned char lbus_play_stereo3[] = {
597 	INTER2_IN, DIGITAL_MIXER_IN2, 0xff
598 };
599 static unsigned char lbus_play_mono3[] = {
600 	INTERM2_IN, DIGITAL_MIXER_IN2, 0xff
601 };
602 static unsigned char lbus_rec_noconv1[] = {
603 	LBUS2ARM_FIFO5, 0xff
604 };
605 static unsigned char lbus_rec_stereo1[] = {
606 	DECIM0_IN, LBUS2ARM_FIFO5, 0xff
607 };
608 static unsigned char lbus_rec_mono1[] = {
609 	DECIMM3_IN, LBUS2ARM_FIFO5, 0xff
610 };
611 
612 static unsigned char play_ids[] = { 4, 1, 2, };
613 static unsigned char play_sources[] = {
614 	ARM2LBUS_FIFO4, ARM2LBUS_FIFO1, ARM2LBUS_FIFO2,
615 };
616 static struct lbuspath lbus_play_paths[] = {
617 	{
618 	 .noconv = lbus_play_noconv1,
619 	 .stereo = lbus_play_stereo1,
620 	 .mono = lbus_play_mono1,
621 	 },
622 	{
623 	 .noconv = lbus_play_noconv2,
624 	 .stereo = lbus_play_stereo2,
625 	 .mono = lbus_play_mono2,
626 	 },
627 	{
628 	 .noconv = lbus_play_noconv3,
629 	 .stereo = lbus_play_stereo3,
630 	 .mono = lbus_play_mono3,
631 	 },
632 };
633 static const struct lbuspath lbus_rec_path = {
634 	.noconv = lbus_rec_noconv1,
635 	.stereo = lbus_rec_stereo1,
636 	.mono = lbus_rec_mono1,
637 };
638 
639 #define FIRMWARE_VERSIONS 1
640 static union firmware_version firmware_versions[] = {
641 	{
642 		.firmware = {
643 			.ASIC = 3,
644 			.CODEC = 2,
645 			.AUXDSP = 3,
646 			.PROG = 773,
647 		},
648 	},
649 };
650 
651 static u32 atoh(const unsigned char *in, unsigned int len)
652 {
653 	u32 sum = 0;
654 	unsigned int mult = 1;
655 	unsigned char c;
656 
657 	while (len) {
658 		int value;
659 
660 		c = in[len - 1];
661 		value = hex_to_bin(c);
662 		if (value >= 0)
663 			sum += mult * value;
664 		mult *= 16;
665 		--len;
666 	}
667 	return sum;
668 }
669 
670 static int senddata(struct cmdif *cif, const unsigned char *in, u32 offset)
671 {
672 	u32 addr;
673 	u32 data;
674 	u32 i;
675 	const unsigned char *p;
676 
677 	i = atoh(&in[1], 2);
678 	addr = offset + atoh(&in[3], 4);
679 	if (SEND_SMEM(cif, 0, addr) != 0)
680 		return -EACCES;
681 	p = in + 9;
682 	while (i) {
683 		data = atoh(p, 8);
684 		if (SEND_WMEM(cif, 2,
685 			      ((data & 0x0f0f0f0f) << 4) | ((data & 0xf0f0f0f0)
686 							    >> 4)))
687 			return -EACCES;
688 		i -= 4;
689 		p += 8;
690 	}
691 	return 0;
692 }
693 
694 static int loadfirmware(struct cmdif *cif, const unsigned char *img,
695 			unsigned int size)
696 {
697 	const unsigned char *in;
698 	u32 laddr, saddr, t, val;
699 	int err = 0;
700 
701 	laddr = saddr = 0;
702 	while (size > 0 && err == 0) {
703 		in = img;
704 		if (in[0] == ':') {
705 			t = atoh(&in[7], 2);
706 			switch (t) {
707 			case DATA_REC:
708 				err = senddata(cif, in, laddr + saddr);
709 				break;
710 			case EXT_SEG_ADDR_REC:
711 				saddr = atoh(&in[9], 4) << 4;
712 				break;
713 			case EXT_LIN_ADDR_REC:
714 				laddr = atoh(&in[9], 4) << 16;
715 				break;
716 			case EXT_GOTO_CMD_REC:
717 				val = atoh(&in[9], 8);
718 				if (SEND_GOTO(cif, val) != 0)
719 					err = -EACCES;
720 				break;
721 			case EXT_END_OF_FILE:
722 				size = 0;
723 				break;
724 			default:
725 				break;
726 			}
727 			while (size > 0) {
728 				size--;
729 				if (*img++ == '\n')
730 					break;
731 			}
732 		}
733 	}
734 	snd_printdd("load firmware return %d\n", err);
735 	return err;
736 }
737 
738 static void
739 alloclbuspath(struct cmdif *cif, unsigned char source,
740 	      unsigned char *path, unsigned char *mixer, unsigned char *s)
741 {
742 	while (*path != 0xff) {
743 		unsigned char sink, type;
744 
745 		sink = *path & (~SPLIT_PATH);
746 		if (sink != E2SINK_MAX) {
747 			snd_printdd("alloc path 0x%x->0x%x\n", source, sink);
748 			SEND_PSEL(cif, source, sink);
749 			source = lbusin2out[sink][0];
750 			type = lbusin2out[sink][1];
751 			if (type == LS_MIXER_IN) {
752 				if (mixer)
753 					*mixer = sink - DIGITAL_MIXER_IN0;
754 			}
755 			if (type == LS_SRC_DECIMATORM ||
756 			    type == LS_SRC_DECIMATOR ||
757 			    type == LS_SRC_INTERPOLATORM ||
758 			    type == LS_SRC_INTERPOLATOR) {
759 				if (s) {
760 					if (s[0] != 0xff)
761 						s[1] = sink;
762 					else
763 						s[0] = sink;
764 				}
765 			}
766 		}
767 		if (*path++ & SPLIT_PATH) {
768 			unsigned char *npath = path;
769 
770 			while (*npath != 0xff)
771 				npath++;
772 			alloclbuspath(cif, source + 1, ++npath, mixer, s);
773 		}
774 	}
775 }
776 
777 static void
778 freelbuspath(struct cmdif *cif, unsigned char source, unsigned char *path)
779 {
780 	while (*path != 0xff) {
781 		unsigned char sink;
782 
783 		sink = *path & (~SPLIT_PATH);
784 		if (sink != E2SINK_MAX) {
785 			snd_printdd("free path 0x%x->0x%x\n", source, sink);
786 			SEND_PCLR(cif, source, sink);
787 			source = lbusin2out[sink][0];
788 		}
789 		if (*path++ & SPLIT_PATH) {
790 			unsigned char *npath = path;
791 
792 			while (*npath != 0xff)
793 				npath++;
794 			freelbuspath(cif, source + 1, ++npath);
795 		}
796 	}
797 }
798 
799 static int writearm(struct cmdif *cif, u32 addr, u32 data, u32 mask)
800 {
801 	union cmdret rptr = CMDRET_ZERO;
802 	unsigned int i = MAX_WRITE_RETRY;
803 	int flag = 1;
804 
805 	SEND_RMEM(cif, 0x02, addr, &rptr);
806 	rptr.retlongs[0] &= (~mask);
807 
808 	while (--i) {
809 		SEND_SMEM(cif, 0x01, addr);
810 		SEND_WMEM(cif, 0x02, (rptr.retlongs[0] | data));
811 		SEND_RMEM(cif, 0x02, addr, &rptr);
812 		if ((rptr.retlongs[0] & data) == data) {
813 			flag = 0;
814 			break;
815 		} else
816 			rptr.retlongs[0] &= ~mask;
817 	}
818 	snd_printdd("send arm 0x%x 0x%x 0x%x return %d\n", addr, data, mask,
819 		    flag);
820 	return flag;
821 }
822 
823 static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
824 		   union cmdret *ret)
825 {
826 	int i, j;
827 	int err;
828 	unsigned int time = 0;
829 	unsigned long irqflags;
830 	struct riptideport *hwport;
831 	struct cmdport *cmdport = NULL;
832 
833 	if (snd_BUG_ON(!cif))
834 		return -EINVAL;
835 
836 	hwport = cif->hwport;
837 	if (cif->errcnt > MAX_ERROR_COUNT) {
838 		if (cif->is_reset) {
839 			snd_printk(KERN_ERR
840 				   "Riptide: Too many failed cmds, reinitializing\n");
841 			if (riptide_reset(cif, NULL) == 0) {
842 				cif->errcnt = 0;
843 				return -EIO;
844 			}
845 		}
846 		snd_printk(KERN_ERR "Riptide: Initialization failed.\n");
847 		return -EINVAL;
848 	}
849 	if (ret) {
850 		ret->retlongs[0] = 0;
851 		ret->retlongs[1] = 0;
852 	}
853 	i = 0;
854 	spin_lock_irqsave(&cif->lock, irqflags);
855 	while (i++ < CMDIF_TIMEOUT && !IS_READY(cif->hwport))
856 		udelay(10);
857 	if (i > CMDIF_TIMEOUT) {
858 		err = -EBUSY;
859 		goto errout;
860 	}
861 
862 	err = 0;
863 	for (j = 0, time = 0; time < CMDIF_TIMEOUT; j++, time += 2) {
864 		cmdport = &(hwport->port[j % 2]);
865 		if (IS_DATF(cmdport)) {	/* free pending data */
866 			READ_PORT_ULONG(cmdport->data1);
867 			READ_PORT_ULONG(cmdport->data2);
868 		}
869 		if (IS_CMDE(cmdport)) {
870 			if (flags & PARM)	/* put data */
871 				WRITE_PORT_ULONG(cmdport->data2, parm);
872 			WRITE_PORT_ULONG(cmdport->data1, cmd);	/* write cmd */
873 			if ((flags & RESP) && ret) {
874 				while (!IS_DATF(cmdport) &&
875 				       time < CMDIF_TIMEOUT) {
876 					udelay(10);
877 					time++;
878 				}
879 				if (time < CMDIF_TIMEOUT) {	/* read response */
880 					ret->retlongs[0] =
881 					    READ_PORT_ULONG(cmdport->data1);
882 					ret->retlongs[1] =
883 					    READ_PORT_ULONG(cmdport->data2);
884 				} else {
885 					err = -ENOSYS;
886 					goto errout;
887 				}
888 			}
889 			break;
890 		}
891 		udelay(20);
892 	}
893 	if (time == CMDIF_TIMEOUT) {
894 		err = -ENODATA;
895 		goto errout;
896 	}
897 	spin_unlock_irqrestore(&cif->lock, irqflags);
898 
899 	cif->cmdcnt++;		/* update command statistics */
900 	cif->cmdtime += time;
901 	if (time > cif->cmdtimemax)
902 		cif->cmdtimemax = time;
903 	if (time < cif->cmdtimemin)
904 		cif->cmdtimemin = time;
905 	if ((cif->cmdcnt) % 1000 == 0)
906 		snd_printdd
907 		    ("send cmd %d time: %d mintime: %d maxtime %d err: %d\n",
908 		     cif->cmdcnt, cif->cmdtime, cif->cmdtimemin,
909 		     cif->cmdtimemax, cif->errcnt);
910 	return 0;
911 
912       errout:
913 	cif->errcnt++;
914 	spin_unlock_irqrestore(&cif->lock, irqflags);
915 	snd_printdd
916 	    ("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",
917 	     cif->cmdcnt, (int)((void *)&(cmdport->stat) - (void *)hwport),
918 	     flags, cmd, parm, ret ? ret->retlongs[0] : 0,
919 	     ret ? ret->retlongs[1] : 0, IS_CMDE(cmdport), IS_DATF(cmdport),
920 	     err);
921 	return err;
922 }
923 
924 static int
925 setmixer(struct cmdif *cif, short num, unsigned short rval, unsigned short lval)
926 {
927 	union cmdret rptr = CMDRET_ZERO;
928 	int i = 0;
929 
930 	snd_printdd("sent mixer %d: 0x%x 0x%x\n", num, rval, lval);
931 	do {
932 		SEND_SDGV(cif, num, num, rval, lval);
933 		SEND_RDGV(cif, num, num, &rptr);
934 		if (rptr.retwords[0] == lval && rptr.retwords[1] == rval)
935 			return 0;
936 	} while (i++ < MAX_WRITE_RETRY);
937 	snd_printdd("sent mixer failed\n");
938 	return -EIO;
939 }
940 
941 static int getpaths(struct cmdif *cif, unsigned char *o)
942 {
943 	unsigned char src[E2SINK_MAX];
944 	unsigned char sink[E2SINK_MAX];
945 	int i, j = 0;
946 
947 	for (i = 0; i < E2SINK_MAX; i++) {
948 		getsourcesink(cif, i, i, &src[i], &sink[i]);
949 		if (sink[i] < E2SINK_MAX) {
950 			o[j++] = sink[i];
951 			o[j++] = i;
952 		}
953 	}
954 	return j;
955 }
956 
957 static int
958 getsourcesink(struct cmdif *cif, unsigned char source, unsigned char sink,
959 	      unsigned char *a, unsigned char *b)
960 {
961 	union cmdret rptr = CMDRET_ZERO;
962 
963 	if (SEND_RSSV(cif, source, sink, &rptr) &&
964 	    SEND_RSSV(cif, source, sink, &rptr))
965 		return -EIO;
966 	*a = rptr.retbytes[0];
967 	*b = rptr.retbytes[1];
968 	snd_printdd("getsourcesink 0x%x 0x%x\n", *a, *b);
969 	return 0;
970 }
971 
972 static int
973 getsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int *rate)
974 {
975 	unsigned char *s;
976 	unsigned int p[2] = { 0, 0 };
977 	int i;
978 	union cmdret rptr = CMDRET_ZERO;
979 
980 	s = intdec;
981 	for (i = 0; i < 2; i++) {
982 		if (*s != 0xff) {
983 			if (SEND_RSRC(cif, *s, &rptr) &&
984 			    SEND_RSRC(cif, *s, &rptr))
985 				return -EIO;
986 			p[i] += rptr.retwords[1];
987 			p[i] *= rptr.retwords[2];
988 			p[i] += rptr.retwords[3];
989 			p[i] /= 65536;
990 		}
991 		s++;
992 	}
993 	if (p[0]) {
994 		if (p[1] != p[0])
995 			snd_printdd("rates differ %d %d\n", p[0], p[1]);
996 		*rate = (unsigned int)p[0];
997 	} else
998 		*rate = (unsigned int)p[1];
999 	snd_printdd("getsampleformat %d %d %d\n", intdec[0], intdec[1], *rate);
1000 	return 0;
1001 }
1002 
1003 static int
1004 setsampleformat(struct cmdif *cif,
1005 		unsigned char mixer, unsigned char id,
1006 		unsigned char channels, snd_pcm_format_t format)
1007 {
1008 	unsigned char w, ch, sig, order;
1009 
1010 	snd_printdd
1011 	    ("setsampleformat mixer: %d id: %d channels: %d format: %d\n",
1012 	     mixer, id, channels, format);
1013 	ch = channels == 1;
1014 	w = snd_pcm_format_width(format) == 8;
1015 	sig = snd_pcm_format_unsigned(format) != 0;
1016 	order = snd_pcm_format_big_endian(format) != 0;
1017 
1018 	if (SEND_SETF(cif, mixer, w, ch, order, sig, id) &&
1019 	    SEND_SETF(cif, mixer, w, ch, order, sig, id)) {
1020 		snd_printdd("setsampleformat failed\n");
1021 		return -EIO;
1022 	}
1023 	return 0;
1024 }
1025 
1026 static int
1027 setsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int rate)
1028 {
1029 	u32 D, M, N;
1030 	union cmdret rptr = CMDRET_ZERO;
1031 	int i;
1032 
1033 	snd_printdd("setsamplerate intdec: %d,%d rate: %d\n", intdec[0],
1034 		    intdec[1], rate);
1035 	D = 48000;
1036 	M = ((rate == 48000) ? 47999 : rate) * 65536;
1037 	N = M % D;
1038 	M /= D;
1039 	for (i = 0; i < 2; i++) {
1040 		if (*intdec != 0xff) {
1041 			do {
1042 				SEND_SSRC(cif, *intdec, D, M, N);
1043 				SEND_RSRC(cif, *intdec, &rptr);
1044 			} while (rptr.retwords[1] != D &&
1045 				 rptr.retwords[2] != M &&
1046 				 rptr.retwords[3] != N &&
1047 				 i++ < MAX_WRITE_RETRY);
1048 			if (i > MAX_WRITE_RETRY) {
1049 				snd_printdd("sent samplerate %d: %d failed\n",
1050 					    *intdec, rate);
1051 				return -EIO;
1052 			}
1053 		}
1054 		intdec++;
1055 	}
1056 	return 0;
1057 }
1058 
1059 static int
1060 getmixer(struct cmdif *cif, short num, unsigned short *rval,
1061 	 unsigned short *lval)
1062 {
1063 	union cmdret rptr = CMDRET_ZERO;
1064 
1065 	if (SEND_RDGV(cif, num, num, &rptr) && SEND_RDGV(cif, num, num, &rptr))
1066 		return -EIO;
1067 	*rval = rptr.retwords[0];
1068 	*lval = rptr.retwords[1];
1069 	snd_printdd("got mixer %d: 0x%x 0x%x\n", num, *rval, *lval);
1070 	return 0;
1071 }
1072 
1073 static void riptide_handleirq(unsigned long dev_id)
1074 {
1075 	struct snd_riptide *chip = (void *)dev_id;
1076 	struct cmdif *cif = chip->cif;
1077 	struct snd_pcm_substream *substream[PLAYBACK_SUBSTREAMS + 1];
1078 	struct snd_pcm_runtime *runtime;
1079 	struct pcmhw *data = NULL;
1080 	unsigned int pos, period_bytes;
1081 	struct sgd *c;
1082 	int i, j;
1083 	unsigned int flag;
1084 
1085 	if (!cif)
1086 		return;
1087 
1088 	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++)
1089 		substream[i] = chip->playback_substream[i];
1090 	substream[i] = chip->capture_substream;
1091 	for (i = 0; i < PLAYBACK_SUBSTREAMS + 1; i++) {
1092 		if (substream[i] &&
1093 		    (runtime = substream[i]->runtime) &&
1094 		    (data = runtime->private_data) && data->state != ST_STOP) {
1095 			pos = 0;
1096 			for (j = 0; j < data->pages; j++) {
1097 				c = &data->sgdbuf[j];
1098 				flag = le32_to_cpu(c->dwStat_Ctl);
1099 				if (flag & EOB_STATUS)
1100 					pos += le32_to_cpu(c->dwSegLen);
1101 				if (flag & EOC_STATUS)
1102 					pos += le32_to_cpu(c->dwSegLen);
1103 				if ((flag & EOS_STATUS)
1104 				    && (data->state == ST_PLAY)) {
1105 					data->state = ST_STOP;
1106 					snd_printk(KERN_ERR
1107 						   "Riptide: DMA stopped unexpectedly\n");
1108 				}
1109 				c->dwStat_Ctl =
1110 				    cpu_to_le32(flag &
1111 						~(EOS_STATUS | EOB_STATUS |
1112 						  EOC_STATUS));
1113 			}
1114 			data->pointer += pos;
1115 			pos += data->oldpos;
1116 			if (data->state != ST_STOP) {
1117 				period_bytes =
1118 				    frames_to_bytes(runtime,
1119 						    runtime->period_size);
1120 				snd_printdd
1121 				    ("interrupt 0x%x after 0x%lx of 0x%lx frames in period\n",
1122 				     READ_AUDIO_STATUS(cif->hwport),
1123 				     bytes_to_frames(runtime, pos),
1124 				     runtime->period_size);
1125 				j = 0;
1126 				if (pos >= period_bytes) {
1127 					j++;
1128 					while (pos >= period_bytes)
1129 						pos -= period_bytes;
1130 				}
1131 				data->oldpos = pos;
1132 				if (j > 0)
1133 					snd_pcm_period_elapsed(substream[i]);
1134 			}
1135 		}
1136 	}
1137 }
1138 
1139 #ifdef CONFIG_PM_SLEEP
1140 static int riptide_suspend(struct device *dev)
1141 {
1142 	struct snd_card *card = dev_get_drvdata(dev);
1143 	struct snd_riptide *chip = card->private_data;
1144 
1145 	chip->in_suspend = 1;
1146 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1147 	snd_ac97_suspend(chip->ac97);
1148 	return 0;
1149 }
1150 
1151 static int riptide_resume(struct device *dev)
1152 {
1153 	struct snd_card *card = dev_get_drvdata(dev);
1154 	struct snd_riptide *chip = card->private_data;
1155 
1156 	snd_riptide_initialize(chip);
1157 	snd_ac97_resume(chip->ac97);
1158 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1159 	chip->in_suspend = 0;
1160 	return 0;
1161 }
1162 
1163 static SIMPLE_DEV_PM_OPS(riptide_pm, riptide_suspend, riptide_resume);
1164 #define RIPTIDE_PM_OPS	&riptide_pm
1165 #else
1166 #define RIPTIDE_PM_OPS	NULL
1167 #endif /* CONFIG_PM_SLEEP */
1168 
1169 static int try_to_load_firmware(struct cmdif *cif, struct snd_riptide *chip)
1170 {
1171 	union firmware_version firmware = { .ret = CMDRET_ZERO };
1172 	int i, timeout, err;
1173 
1174 	for (i = 0; i < 2; i++) {
1175 		WRITE_PORT_ULONG(cif->hwport->port[i].data1, 0);
1176 		WRITE_PORT_ULONG(cif->hwport->port[i].data2, 0);
1177 	}
1178 	SET_GRESET(cif->hwport);
1179 	udelay(100);
1180 	UNSET_GRESET(cif->hwport);
1181 	udelay(100);
1182 
1183 	for (timeout = 100000; --timeout; udelay(10)) {
1184 		if (IS_READY(cif->hwport) && !IS_GERR(cif->hwport))
1185 			break;
1186 	}
1187 	if (!timeout) {
1188 		snd_printk(KERN_ERR
1189 			   "Riptide: device not ready, audio status: 0x%x "
1190 			   "ready: %d gerr: %d\n",
1191 			   READ_AUDIO_STATUS(cif->hwport),
1192 			   IS_READY(cif->hwport), IS_GERR(cif->hwport));
1193 		return -EIO;
1194 	} else {
1195 		snd_printdd
1196 			("Riptide: audio status: 0x%x ready: %d gerr: %d\n",
1197 			 READ_AUDIO_STATUS(cif->hwport),
1198 			 IS_READY(cif->hwport), IS_GERR(cif->hwport));
1199 	}
1200 
1201 	SEND_GETV(cif, &firmware.ret);
1202 	snd_printdd("Firmware version: ASIC: %d CODEC %d AUXDSP %d PROG %d\n",
1203 		    firmware.firmware.ASIC, firmware.firmware.CODEC,
1204 		    firmware.firmware.AUXDSP, firmware.firmware.PROG);
1205 
1206 	if (!chip)
1207 		return 1;
1208 
1209 	for (i = 0; i < FIRMWARE_VERSIONS; i++) {
1210 		if (!memcmp(&firmware_versions[i], &firmware, sizeof(firmware)))
1211 			return 1; /* OK */
1212 
1213 	}
1214 
1215 	snd_printdd("Writing Firmware\n");
1216 	if (!chip->fw_entry) {
1217 		err = request_firmware(&chip->fw_entry, "riptide.hex",
1218 				       &chip->pci->dev);
1219 		if (err) {
1220 			snd_printk(KERN_ERR
1221 				   "Riptide: Firmware not available %d\n", err);
1222 			return -EIO;
1223 		}
1224 	}
1225 	err = loadfirmware(cif, chip->fw_entry->data, chip->fw_entry->size);
1226 	if (err) {
1227 		snd_printk(KERN_ERR
1228 			   "Riptide: Could not load firmware %d\n", err);
1229 		return err;
1230 	}
1231 
1232 	chip->firmware = firmware;
1233 
1234 	return 1; /* OK */
1235 }
1236 
1237 static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip)
1238 {
1239 	union cmdret rptr = CMDRET_ZERO;
1240 	int err, tries;
1241 
1242 	if (!cif)
1243 		return -EINVAL;
1244 
1245 	cif->cmdcnt = 0;
1246 	cif->cmdtime = 0;
1247 	cif->cmdtimemax = 0;
1248 	cif->cmdtimemin = 0xffffffff;
1249 	cif->errcnt = 0;
1250 	cif->is_reset = 0;
1251 
1252 	tries = RESET_TRIES;
1253 	do {
1254 		err = try_to_load_firmware(cif, chip);
1255 		if (err < 0)
1256 			return err;
1257 	} while (!err && --tries);
1258 
1259 	SEND_SACR(cif, 0, AC97_RESET);
1260 	SEND_RACR(cif, AC97_RESET, &rptr);
1261 	snd_printdd("AC97: 0x%x 0x%x\n", rptr.retlongs[0], rptr.retlongs[1]);
1262 
1263 	SEND_PLST(cif, 0);
1264 	SEND_SLST(cif, 0);
1265 	SEND_DLST(cif, 0);
1266 	SEND_ALST(cif, 0);
1267 	SEND_KDMA(cif);
1268 
1269 	writearm(cif, 0x301F8, 1, 1);
1270 	writearm(cif, 0x301F4, 1, 1);
1271 
1272 	SEND_LSEL(cif, MODEM_CMD, 0, 0, MODEM_INTDEC, MODEM_MERGER,
1273 		  MODEM_SPLITTER, MODEM_MIXER);
1274 	setmixer(cif, MODEM_MIXER, 0x7fff, 0x7fff);
1275 	alloclbuspath(cif, ARM2LBUS_FIFO13, lbus_play_modem, NULL, NULL);
1276 
1277 	SEND_LSEL(cif, FM_CMD, 0, 0, FM_INTDEC, FM_MERGER, FM_SPLITTER,
1278 		  FM_MIXER);
1279 	setmixer(cif, FM_MIXER, 0x7fff, 0x7fff);
1280 	writearm(cif, 0x30648 + FM_MIXER * 4, 0x01, 0x00000005);
1281 	writearm(cif, 0x301A8, 0x02, 0x00000002);
1282 	writearm(cif, 0x30264, 0x08, 0xffffffff);
1283 	alloclbuspath(cif, OPL3_SAMPLE, lbus_play_opl3, NULL, NULL);
1284 
1285 	SEND_SSRC(cif, I2S_INTDEC, 48000,
1286 		  ((u32) I2S_RATE * 65536) / 48000,
1287 		  ((u32) I2S_RATE * 65536) % 48000);
1288 	SEND_LSEL(cif, I2S_CMD0, 0, 0, I2S_INTDEC, I2S_MERGER, I2S_SPLITTER,
1289 		  I2S_MIXER);
1290 	SEND_SI2S(cif, 1);
1291 	alloclbuspath(cif, ARM2LBUS_FIFO0, lbus_play_i2s, NULL, NULL);
1292 	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_out, NULL, NULL);
1293 	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_outhp, NULL, NULL);
1294 
1295 	SET_AIACK(cif->hwport);
1296 	SET_AIE(cif->hwport);
1297 	SET_AIACK(cif->hwport);
1298 	cif->is_reset = 1;
1299 
1300 	return 0;
1301 }
1302 
1303 static const struct snd_pcm_hardware snd_riptide_playback = {
1304 	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1305 		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1306 		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1307 	.formats =
1308 	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1309 	    | SNDRV_PCM_FMTBIT_U16_LE,
1310 	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1311 	.rate_min = 5500,
1312 	.rate_max = 48000,
1313 	.channels_min = 1,
1314 	.channels_max = 2,
1315 	.buffer_bytes_max = (64 * 1024),
1316 	.period_bytes_min = PAGE_SIZE >> 1,
1317 	.period_bytes_max = PAGE_SIZE << 8,
1318 	.periods_min = 2,
1319 	.periods_max = 64,
1320 	.fifo_size = 0,
1321 };
1322 static const struct snd_pcm_hardware snd_riptide_capture = {
1323 	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1324 		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1325 		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1326 	.formats =
1327 	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1328 	    | SNDRV_PCM_FMTBIT_U16_LE,
1329 	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1330 	.rate_min = 5500,
1331 	.rate_max = 48000,
1332 	.channels_min = 1,
1333 	.channels_max = 2,
1334 	.buffer_bytes_max = (64 * 1024),
1335 	.period_bytes_min = PAGE_SIZE >> 1,
1336 	.period_bytes_max = PAGE_SIZE << 3,
1337 	.periods_min = 2,
1338 	.periods_max = 64,
1339 	.fifo_size = 0,
1340 };
1341 
1342 static snd_pcm_uframes_t snd_riptide_pointer(struct snd_pcm_substream
1343 					     *substream)
1344 {
1345 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1346 	struct snd_pcm_runtime *runtime = substream->runtime;
1347 	struct pcmhw *data = get_pcmhwdev(substream);
1348 	struct cmdif *cif = chip->cif;
1349 	union cmdret rptr = CMDRET_ZERO;
1350 	snd_pcm_uframes_t ret;
1351 
1352 	SEND_GPOS(cif, 0, data->id, &rptr);
1353 	if (data->size && runtime->period_size) {
1354 		snd_printdd
1355 		    ("pointer stream %d position 0x%x(0x%x in buffer) bytes 0x%lx(0x%lx in period) frames\n",
1356 		     data->id, rptr.retlongs[1], rptr.retlongs[1] % data->size,
1357 		     bytes_to_frames(runtime, rptr.retlongs[1]),
1358 		     bytes_to_frames(runtime,
1359 				     rptr.retlongs[1]) % runtime->period_size);
1360 		if (rptr.retlongs[1] > data->pointer)
1361 			ret =
1362 			    bytes_to_frames(runtime,
1363 					    rptr.retlongs[1] % data->size);
1364 		else
1365 			ret =
1366 			    bytes_to_frames(runtime,
1367 					    data->pointer % data->size);
1368 	} else {
1369 		snd_printdd("stream not started or strange parms (%d %ld)\n",
1370 			    data->size, runtime->period_size);
1371 		ret = bytes_to_frames(runtime, 0);
1372 	}
1373 	return ret;
1374 }
1375 
1376 static int snd_riptide_trigger(struct snd_pcm_substream *substream, int cmd)
1377 {
1378 	int i, j;
1379 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1380 	struct pcmhw *data = get_pcmhwdev(substream);
1381 	struct cmdif *cif = chip->cif;
1382 	union cmdret rptr = CMDRET_ZERO;
1383 
1384 	spin_lock(&chip->lock);
1385 	switch (cmd) {
1386 	case SNDRV_PCM_TRIGGER_START:
1387 	case SNDRV_PCM_TRIGGER_RESUME:
1388 		if (!(data->state & ST_PLAY)) {
1389 			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1390 			SET_AIE(cif->hwport);
1391 			data->state = ST_PLAY;
1392 			if (data->mixer != 0xff)
1393 				setmixer(cif, data->mixer, 0x7fff, 0x7fff);
1394 			chip->openstreams++;
1395 			data->oldpos = 0;
1396 			data->pointer = 0;
1397 		}
1398 		break;
1399 	case SNDRV_PCM_TRIGGER_STOP:
1400 	case SNDRV_PCM_TRIGGER_SUSPEND:
1401 		if (data->mixer != 0xff)
1402 			setmixer(cif, data->mixer, 0, 0);
1403 		setmixer(cif, data->mixer, 0, 0);
1404 		SEND_KSTR(cif, data->id);
1405 		data->state = ST_STOP;
1406 		chip->openstreams--;
1407 		j = 0;
1408 		do {
1409 			i = rptr.retlongs[1];
1410 			SEND_GPOS(cif, 0, data->id, &rptr);
1411 			udelay(1);
1412 		} while (i != rptr.retlongs[1] && j++ < MAX_WRITE_RETRY);
1413 		if (j > MAX_WRITE_RETRY)
1414 			snd_printk(KERN_ERR "Riptide: Could not stop stream!");
1415 		break;
1416 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1417 		if (!(data->state & ST_PAUSE)) {
1418 			SEND_PSTR(cif, data->id);
1419 			data->state |= ST_PAUSE;
1420 			chip->openstreams--;
1421 		}
1422 		break;
1423 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1424 		if (data->state & ST_PAUSE) {
1425 			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1426 			data->state &= ~ST_PAUSE;
1427 			chip->openstreams++;
1428 		}
1429 		break;
1430 	default:
1431 		spin_unlock(&chip->lock);
1432 		return -EINVAL;
1433 	}
1434 	spin_unlock(&chip->lock);
1435 	return 0;
1436 }
1437 
1438 static int snd_riptide_prepare(struct snd_pcm_substream *substream)
1439 {
1440 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1441 	struct snd_pcm_runtime *runtime = substream->runtime;
1442 	struct pcmhw *data = get_pcmhwdev(substream);
1443 	struct cmdif *cif = chip->cif;
1444 	unsigned char *lbuspath = NULL;
1445 	unsigned int rate, channels;
1446 	int err = 0;
1447 	snd_pcm_format_t format;
1448 
1449 	if (snd_BUG_ON(!cif || !data))
1450 		return -EINVAL;
1451 
1452 	snd_printdd("prepare id %d ch: %d f:0x%x r:%d\n", data->id,
1453 		    runtime->channels, runtime->format, runtime->rate);
1454 
1455 	spin_lock_irq(&chip->lock);
1456 	channels = runtime->channels;
1457 	format = runtime->format;
1458 	rate = runtime->rate;
1459 	switch (channels) {
1460 	case 1:
1461 		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1462 			lbuspath = data->paths.noconv;
1463 		else
1464 			lbuspath = data->paths.mono;
1465 		break;
1466 	case 2:
1467 		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1468 			lbuspath = data->paths.noconv;
1469 		else
1470 			lbuspath = data->paths.stereo;
1471 		break;
1472 	}
1473 	snd_printdd("use sgdlist at 0x%p\n",
1474 		    data->sgdlist.area);
1475 	if (data->sgdlist.area) {
1476 		unsigned int i, j, size, pages, f, pt, period;
1477 		struct sgd *c, *p = NULL;
1478 
1479 		size = frames_to_bytes(runtime, runtime->buffer_size);
1480 		period = frames_to_bytes(runtime, runtime->period_size);
1481 		f = PAGE_SIZE;
1482 		while ((size + (f >> 1) - 1) <= (f << 7) && (f << 1) > period)
1483 			f = f >> 1;
1484 		pages = DIV_ROUND_UP(size, f);
1485 		data->size = size;
1486 		data->pages = pages;
1487 		snd_printdd
1488 		    ("create sgd size: 0x%x pages %d of size 0x%x for period 0x%x\n",
1489 		     size, pages, f, period);
1490 		pt = 0;
1491 		j = 0;
1492 		for (i = 0; i < pages; i++) {
1493 			unsigned int ofs, addr;
1494 			c = &data->sgdbuf[i];
1495 			if (p)
1496 				p->dwNextLink = cpu_to_le32(data->sgdlist.addr +
1497 							    (i *
1498 							     sizeof(struct
1499 								    sgd)));
1500 			c->dwNextLink = cpu_to_le32(data->sgdlist.addr);
1501 			ofs = j << PAGE_SHIFT;
1502 			addr = snd_pcm_sgbuf_get_addr(substream, ofs) + pt;
1503 			c->dwSegPtrPhys = cpu_to_le32(addr);
1504 			pt = (pt + f) % PAGE_SIZE;
1505 			if (pt == 0)
1506 				j++;
1507 			c->dwSegLen = cpu_to_le32(f);
1508 			c->dwStat_Ctl =
1509 			    cpu_to_le32(IEOB_ENABLE | IEOS_ENABLE |
1510 					IEOC_ENABLE);
1511 			p = c;
1512 			size -= f;
1513 		}
1514 		data->sgdbuf[i].dwSegLen = cpu_to_le32(size);
1515 	}
1516 	if (lbuspath && lbuspath != data->lbuspath) {
1517 		if (data->lbuspath)
1518 			freelbuspath(cif, data->source, data->lbuspath);
1519 		alloclbuspath(cif, data->source, lbuspath,
1520 			      &data->mixer, data->intdec);
1521 		data->lbuspath = lbuspath;
1522 		data->rate = 0;
1523 	}
1524 	if (data->rate != rate || data->format != format ||
1525 	    data->channels != channels) {
1526 		data->rate = rate;
1527 		data->format = format;
1528 		data->channels = channels;
1529 		if (setsampleformat
1530 		    (cif, data->mixer, data->id, channels, format)
1531 		    || setsamplerate(cif, data->intdec, rate))
1532 			err = -EIO;
1533 	}
1534 	spin_unlock_irq(&chip->lock);
1535 	return err;
1536 }
1537 
1538 static int
1539 snd_riptide_hw_params(struct snd_pcm_substream *substream,
1540 		      struct snd_pcm_hw_params *hw_params)
1541 {
1542 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1543 	struct pcmhw *data = get_pcmhwdev(substream);
1544 	struct snd_dma_buffer *sgdlist = &data->sgdlist;
1545 	int err;
1546 
1547 	snd_printdd("hw params id %d (sgdlist: 0x%p 0x%lx %d)\n", data->id,
1548 		    sgdlist->area, (unsigned long)sgdlist->addr,
1549 		    (int)sgdlist->bytes);
1550 	if (sgdlist->area)
1551 		snd_dma_free_pages(sgdlist);
1552 	if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
1553 				       &chip->pci->dev,
1554 				       sizeof(struct sgd) * (DESC_MAX_MASK + 1),
1555 				       sgdlist)) < 0) {
1556 		snd_printk(KERN_ERR "Riptide: failed to alloc %d dma bytes\n",
1557 			   (int)sizeof(struct sgd) * (DESC_MAX_MASK + 1));
1558 		return err;
1559 	}
1560 	data->sgdbuf = (struct sgd *)sgdlist->area;
1561 	return snd_pcm_lib_malloc_pages(substream,
1562 					params_buffer_bytes(hw_params));
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 snd_pcm_lib_free_pages(substream);
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 	.ioctl = snd_pcm_lib_ioctl,
1661 	.hw_params = snd_riptide_hw_params,
1662 	.hw_free = snd_riptide_hw_free,
1663 	.prepare = snd_riptide_prepare,
1664 	.trigger = snd_riptide_trigger,
1665 	.pointer = snd_riptide_pointer,
1666 };
1667 static const struct snd_pcm_ops snd_riptide_capture_ops = {
1668 	.open = snd_riptide_capture_open,
1669 	.close = snd_riptide_capture_close,
1670 	.ioctl = snd_pcm_lib_ioctl,
1671 	.hw_params = snd_riptide_hw_params,
1672 	.hw_free = snd_riptide_hw_free,
1673 	.prepare = snd_riptide_prepare,
1674 	.trigger = snd_riptide_trigger,
1675 	.pointer = snd_riptide_pointer,
1676 };
1677 
1678 static int snd_riptide_pcm(struct snd_riptide *chip, int device)
1679 {
1680 	struct snd_pcm *pcm;
1681 	int err;
1682 
1683 	if ((err =
1684 	     snd_pcm_new(chip->card, "RIPTIDE", device, PLAYBACK_SUBSTREAMS, 1,
1685 			 &pcm)) < 0)
1686 		return err;
1687 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1688 			&snd_riptide_playback_ops);
1689 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1690 			&snd_riptide_capture_ops);
1691 	pcm->private_data = chip;
1692 	pcm->info_flags = 0;
1693 	strcpy(pcm->name, "RIPTIDE");
1694 	chip->pcm = pcm;
1695 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1696 					      &chip->pci->dev,
1697 					      64 * 1024, 128 * 1024);
1698 	return 0;
1699 }
1700 
1701 static irqreturn_t
1702 snd_riptide_interrupt(int irq, void *dev_id)
1703 {
1704 	struct snd_riptide *chip = dev_id;
1705 	struct cmdif *cif = chip->cif;
1706 
1707 	if (cif) {
1708 		chip->received_irqs++;
1709 		if (IS_EOBIRQ(cif->hwport) || IS_EOSIRQ(cif->hwport) ||
1710 		    IS_EOCIRQ(cif->hwport)) {
1711 			chip->handled_irqs++;
1712 			tasklet_schedule(&chip->riptide_tq);
1713 		}
1714 		if (chip->rmidi && IS_MPUIRQ(cif->hwport)) {
1715 			chip->handled_irqs++;
1716 			snd_mpu401_uart_interrupt(irq,
1717 						  chip->rmidi->private_data);
1718 		}
1719 		SET_AIACK(cif->hwport);
1720 	}
1721 	return IRQ_HANDLED;
1722 }
1723 
1724 static void
1725 snd_riptide_codec_write(struct snd_ac97 *ac97, unsigned short reg,
1726 			unsigned short val)
1727 {
1728 	struct snd_riptide *chip = ac97->private_data;
1729 	struct cmdif *cif = chip->cif;
1730 	union cmdret rptr = CMDRET_ZERO;
1731 	int i = 0;
1732 
1733 	if (snd_BUG_ON(!cif))
1734 		return;
1735 
1736 	snd_printdd("Write AC97 reg 0x%x 0x%x\n", reg, val);
1737 	do {
1738 		SEND_SACR(cif, val, reg);
1739 		SEND_RACR(cif, reg, &rptr);
1740 	} while (rptr.retwords[1] != val && i++ < MAX_WRITE_RETRY);
1741 	if (i > MAX_WRITE_RETRY)
1742 		snd_printdd("Write AC97 reg failed\n");
1743 }
1744 
1745 static unsigned short snd_riptide_codec_read(struct snd_ac97 *ac97,
1746 					     unsigned short reg)
1747 {
1748 	struct snd_riptide *chip = ac97->private_data;
1749 	struct cmdif *cif = chip->cif;
1750 	union cmdret rptr = CMDRET_ZERO;
1751 
1752 	if (snd_BUG_ON(!cif))
1753 		return 0;
1754 
1755 	if (SEND_RACR(cif, reg, &rptr) != 0)
1756 		SEND_RACR(cif, reg, &rptr);
1757 	snd_printdd("Read AC97 reg 0x%x got 0x%x\n", reg, rptr.retwords[1]);
1758 	return rptr.retwords[1];
1759 }
1760 
1761 static int snd_riptide_initialize(struct snd_riptide *chip)
1762 {
1763 	struct cmdif *cif;
1764 	unsigned int device_id;
1765 	int err;
1766 
1767 	if (snd_BUG_ON(!chip))
1768 		return -EINVAL;
1769 
1770 	cif = chip->cif;
1771 	if (!cif) {
1772 		if ((cif = kzalloc(sizeof(struct cmdif), GFP_KERNEL)) == NULL)
1773 			return -ENOMEM;
1774 		cif->hwport = (struct riptideport *)chip->port;
1775 		spin_lock_init(&cif->lock);
1776 		chip->cif = cif;
1777 	}
1778 	cif->is_reset = 0;
1779 	if ((err = riptide_reset(cif, chip)) != 0)
1780 		return err;
1781 	device_id = chip->device_id;
1782 	switch (device_id) {
1783 	case 0x4310:
1784 	case 0x4320:
1785 	case 0x4330:
1786 		snd_printdd("Modem enable?\n");
1787 		SEND_SETDPLL(cif);
1788 		break;
1789 	}
1790 	snd_printdd("Enabling MPU IRQs\n");
1791 	if (chip->rmidi)
1792 		SET_EMPUIRQ(cif->hwport);
1793 	return err;
1794 }
1795 
1796 static int snd_riptide_free(struct snd_riptide *chip)
1797 {
1798 	struct cmdif *cif;
1799 
1800 	if (!chip)
1801 		return 0;
1802 
1803 	if ((cif = chip->cif)) {
1804 		SET_GRESET(cif->hwport);
1805 		udelay(100);
1806 		UNSET_GRESET(cif->hwport);
1807 		kfree(chip->cif);
1808 	}
1809 	if (chip->irq >= 0)
1810 		free_irq(chip->irq, chip);
1811 	release_firmware(chip->fw_entry);
1812 	release_and_free_resource(chip->res_port);
1813 	kfree(chip);
1814 	return 0;
1815 }
1816 
1817 static int snd_riptide_dev_free(struct snd_device *device)
1818 {
1819 	struct snd_riptide *chip = device->device_data;
1820 
1821 	return snd_riptide_free(chip);
1822 }
1823 
1824 static int
1825 snd_riptide_create(struct snd_card *card, struct pci_dev *pci,
1826 		   struct snd_riptide **rchip)
1827 {
1828 	struct snd_riptide *chip;
1829 	struct riptideport *hwport;
1830 	int err;
1831 	static struct snd_device_ops ops = {
1832 		.dev_free = snd_riptide_dev_free,
1833 	};
1834 
1835 	*rchip = NULL;
1836 	if ((err = pci_enable_device(pci)) < 0)
1837 		return err;
1838 	if (!(chip = kzalloc(sizeof(struct snd_riptide), GFP_KERNEL)))
1839 		return -ENOMEM;
1840 
1841 	spin_lock_init(&chip->lock);
1842 	chip->card = card;
1843 	chip->pci = pci;
1844 	chip->irq = -1;
1845 	chip->openstreams = 0;
1846 	chip->port = pci_resource_start(pci, 0);
1847 	chip->received_irqs = 0;
1848 	chip->handled_irqs = 0;
1849 	chip->cif = NULL;
1850 	tasklet_init(&chip->riptide_tq, riptide_handleirq, (unsigned long)chip);
1851 
1852 	if ((chip->res_port =
1853 	     request_region(chip->port, 64, "RIPTIDE")) == NULL) {
1854 		snd_printk(KERN_ERR
1855 			   "Riptide: unable to grab region 0x%lx-0x%lx\n",
1856 			   chip->port, chip->port + 64 - 1);
1857 		snd_riptide_free(chip);
1858 		return -EBUSY;
1859 	}
1860 	hwport = (struct riptideport *)chip->port;
1861 	UNSET_AIE(hwport);
1862 
1863 	if (request_irq(pci->irq, snd_riptide_interrupt, IRQF_SHARED,
1864 			KBUILD_MODNAME, chip)) {
1865 		snd_printk(KERN_ERR "Riptide: unable to grab IRQ %d\n",
1866 			   pci->irq);
1867 		snd_riptide_free(chip);
1868 		return -EBUSY;
1869 	}
1870 	chip->irq = pci->irq;
1871 	chip->device_id = pci->device;
1872 	pci_set_master(pci);
1873 	if ((err = snd_riptide_initialize(chip)) < 0) {
1874 		snd_riptide_free(chip);
1875 		return err;
1876 	}
1877 
1878 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1879 		snd_riptide_free(chip);
1880 		return err;
1881 	}
1882 
1883 	*rchip = chip;
1884 	return 0;
1885 }
1886 
1887 static void
1888 snd_riptide_proc_read(struct snd_info_entry *entry,
1889 		      struct snd_info_buffer *buffer)
1890 {
1891 	struct snd_riptide *chip = entry->private_data;
1892 	struct pcmhw *data;
1893 	int i;
1894 	struct cmdif *cif = NULL;
1895 	unsigned char p[256];
1896 	unsigned short rval = 0, lval = 0;
1897 	unsigned int rate;
1898 
1899 	if (!chip)
1900 		return;
1901 
1902 	snd_iprintf(buffer, "%s\n\n", chip->card->longname);
1903 	snd_iprintf(buffer, "Device ID: 0x%x\nReceived IRQs: (%ld)%ld\nPorts:",
1904 		    chip->device_id, chip->handled_irqs, chip->received_irqs);
1905 	for (i = 0; i < 64; i += 4)
1906 		snd_iprintf(buffer, "%c%02x: %08x",
1907 			    (i % 16) ? ' ' : '\n', i, inl(chip->port + i));
1908 	if ((cif = chip->cif)) {
1909 		snd_iprintf(buffer,
1910 			    "\nVersion: ASIC: %d CODEC: %d AUXDSP: %d PROG: %d",
1911 			    chip->firmware.firmware.ASIC,
1912 			    chip->firmware.firmware.CODEC,
1913 			    chip->firmware.firmware.AUXDSP,
1914 			    chip->firmware.firmware.PROG);
1915 		snd_iprintf(buffer, "\nDigital mixer:");
1916 		for (i = 0; i < 12; i++) {
1917 			getmixer(cif, i, &rval, &lval);
1918 			snd_iprintf(buffer, "\n %d: %d %d", i, rval, lval);
1919 		}
1920 		snd_iprintf(buffer,
1921 			    "\nARM Commands num: %d failed: %d time: %d max: %d min: %d",
1922 			    cif->cmdcnt, cif->errcnt,
1923 			    cif->cmdtime, cif->cmdtimemax, cif->cmdtimemin);
1924 	}
1925 	snd_iprintf(buffer, "\nOpen streams %d:\n", chip->openstreams);
1926 	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++) {
1927 		if (chip->playback_substream[i]
1928 		    && chip->playback_substream[i]->runtime
1929 		    && (data =
1930 			chip->playback_substream[i]->runtime->private_data)) {
1931 			snd_iprintf(buffer,
1932 				    "stream: %d mixer: %d source: %d (%d,%d)\n",
1933 				    data->id, data->mixer, data->source,
1934 				    data->intdec[0], data->intdec[1]);
1935 			if (!(getsamplerate(cif, data->intdec, &rate)))
1936 				snd_iprintf(buffer, "rate: %d\n", rate);
1937 		}
1938 	}
1939 	if (chip->capture_substream
1940 	    && chip->capture_substream->runtime
1941 	    && (data = chip->capture_substream->runtime->private_data)) {
1942 		snd_iprintf(buffer,
1943 			    "stream: %d mixer: %d source: %d (%d,%d)\n",
1944 			    data->id, data->mixer,
1945 			    data->source, data->intdec[0], data->intdec[1]);
1946 		if (!(getsamplerate(cif, data->intdec, &rate)))
1947 			snd_iprintf(buffer, "rate: %d\n", rate);
1948 	}
1949 	snd_iprintf(buffer, "Paths:\n");
1950 	i = getpaths(cif, p);
1951 	while (i >= 2) {
1952 		i -= 2;
1953 		snd_iprintf(buffer, "%x->%x ", p[i], p[i + 1]);
1954 	}
1955 	snd_iprintf(buffer, "\n");
1956 }
1957 
1958 static void snd_riptide_proc_init(struct snd_riptide *chip)
1959 {
1960 	snd_card_ro_proc_new(chip->card, "riptide", chip,
1961 			     snd_riptide_proc_read);
1962 }
1963 
1964 static int snd_riptide_mixer(struct snd_riptide *chip)
1965 {
1966 	struct snd_ac97_bus *pbus;
1967 	struct snd_ac97_template ac97;
1968 	int err = 0;
1969 	static struct snd_ac97_bus_ops ops = {
1970 		.write = snd_riptide_codec_write,
1971 		.read = snd_riptide_codec_read,
1972 	};
1973 
1974 	memset(&ac97, 0, sizeof(ac97));
1975 	ac97.private_data = chip;
1976 	ac97.scaps = AC97_SCAP_SKIP_MODEM;
1977 
1978 	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
1979 		return err;
1980 
1981 	chip->ac97_bus = pbus;
1982 	ac97.pci = chip->pci;
1983 	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
1984 		return err;
1985 	return err;
1986 }
1987 
1988 #ifdef SUPPORT_JOYSTICK
1989 
1990 static int
1991 snd_riptide_joystick_probe(struct pci_dev *pci, const struct pci_device_id *id)
1992 {
1993 	static int dev;
1994 	struct gameport *gameport;
1995 	int ret;
1996 
1997 	if (dev >= SNDRV_CARDS)
1998 		return -ENODEV;
1999 
2000 	if (!enable[dev]) {
2001 		ret = -ENOENT;
2002 		goto inc_dev;
2003 	}
2004 
2005 	if (!joystick_port[dev]) {
2006 		ret = 0;
2007 		goto inc_dev;
2008 	}
2009 
2010 	gameport = gameport_allocate_port();
2011 	if (!gameport) {
2012 		ret = -ENOMEM;
2013 		goto inc_dev;
2014 	}
2015 	if (!request_region(joystick_port[dev], 8, "Riptide gameport")) {
2016 		snd_printk(KERN_WARNING
2017 			   "Riptide: cannot grab gameport 0x%x\n",
2018 			   joystick_port[dev]);
2019 		gameport_free_port(gameport);
2020 		ret = -EBUSY;
2021 		goto inc_dev;
2022 	}
2023 
2024 	gameport->io = joystick_port[dev];
2025 	gameport_register_port(gameport);
2026 	pci_set_drvdata(pci, gameport);
2027 
2028 	ret = 0;
2029 inc_dev:
2030 	dev++;
2031 	return ret;
2032 }
2033 
2034 static void snd_riptide_joystick_remove(struct pci_dev *pci)
2035 {
2036 	struct gameport *gameport = pci_get_drvdata(pci);
2037 	if (gameport) {
2038 		release_region(gameport->io, 8);
2039 		gameport_unregister_port(gameport);
2040 	}
2041 }
2042 #endif
2043 
2044 static int
2045 snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2046 {
2047 	static int dev;
2048 	struct snd_card *card;
2049 	struct snd_riptide *chip;
2050 	unsigned short val;
2051 	int err;
2052 
2053 	if (dev >= SNDRV_CARDS)
2054 		return -ENODEV;
2055 	if (!enable[dev]) {
2056 		dev++;
2057 		return -ENOENT;
2058 	}
2059 
2060 	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2061 			   0, &card);
2062 	if (err < 0)
2063 		return err;
2064 	err = snd_riptide_create(card, pci, &chip);
2065 	if (err < 0)
2066 		goto error;
2067 	card->private_data = chip;
2068 	err = snd_riptide_pcm(chip, 0);
2069 	if (err < 0)
2070 		goto error;
2071 	err = snd_riptide_mixer(chip);
2072 	if (err < 0)
2073 		goto error;
2074 
2075 	val = LEGACY_ENABLE_ALL;
2076 	if (opl3_port[dev])
2077 		val |= LEGACY_ENABLE_FM;
2078 #ifdef SUPPORT_JOYSTICK
2079 	if (joystick_port[dev])
2080 		val |= LEGACY_ENABLE_GAMEPORT;
2081 #endif
2082 	if (mpu_port[dev])
2083 		val |= LEGACY_ENABLE_MPU_INT | LEGACY_ENABLE_MPU;
2084 	val |= (chip->irq << 4) & 0xf0;
2085 	pci_write_config_word(chip->pci, PCI_EXT_Legacy_Mask, val);
2086 	if (mpu_port[dev]) {
2087 		val = mpu_port[dev];
2088 		pci_write_config_word(chip->pci, PCI_EXT_MPU_Base, val);
2089 		err = snd_mpu401_uart_new(card, 0, MPU401_HW_RIPTIDE,
2090 					  val, MPU401_INFO_IRQ_HOOK, -1,
2091 					  &chip->rmidi);
2092 		if (err < 0)
2093 			snd_printk(KERN_WARNING
2094 				   "Riptide: Can't Allocate MPU at 0x%x\n",
2095 				   val);
2096 		else
2097 			chip->mpuaddr = val;
2098 	}
2099 	if (opl3_port[dev]) {
2100 		val = opl3_port[dev];
2101 		pci_write_config_word(chip->pci, PCI_EXT_FM_Base, val);
2102 		err = snd_opl3_create(card, val, val + 2,
2103 				      OPL3_HW_RIPTIDE, 0, &chip->opl3);
2104 		if (err < 0)
2105 			snd_printk(KERN_WARNING
2106 				   "Riptide: Can't Allocate OPL3 at 0x%x\n",
2107 				   val);
2108 		else {
2109 			chip->opladdr = val;
2110 			err = snd_opl3_hwdep_new(chip->opl3, 0, 1, NULL);
2111 			if (err < 0)
2112 				snd_printk(KERN_WARNING
2113 					   "Riptide: Can't Allocate OPL3-HWDEP\n");
2114 		}
2115 	}
2116 #ifdef SUPPORT_JOYSTICK
2117 	if (joystick_port[dev]) {
2118 		val = joystick_port[dev];
2119 		pci_write_config_word(chip->pci, PCI_EXT_Game_Base, val);
2120 		chip->gameaddr = val;
2121 	}
2122 #endif
2123 
2124 	strcpy(card->driver, "RIPTIDE");
2125 	strcpy(card->shortname, "Riptide");
2126 #ifdef SUPPORT_JOYSTICK
2127 	snprintf(card->longname, sizeof(card->longname),
2128 		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x gameport 0x%x",
2129 		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
2130 		 chip->opladdr, chip->gameaddr);
2131 #else
2132 	snprintf(card->longname, sizeof(card->longname),
2133 		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x",
2134 		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
2135 		 chip->opladdr);
2136 #endif
2137 	snd_riptide_proc_init(chip);
2138 	err = snd_card_register(card);
2139 	if (err < 0)
2140 		goto error;
2141 	pci_set_drvdata(pci, card);
2142 	dev++;
2143 	return 0;
2144 
2145  error:
2146 	snd_card_free(card);
2147 	return err;
2148 }
2149 
2150 static void snd_card_riptide_remove(struct pci_dev *pci)
2151 {
2152 	snd_card_free(pci_get_drvdata(pci));
2153 }
2154 
2155 static struct pci_driver driver = {
2156 	.name = KBUILD_MODNAME,
2157 	.id_table = snd_riptide_ids,
2158 	.probe = snd_card_riptide_probe,
2159 	.remove = snd_card_riptide_remove,
2160 	.driver = {
2161 		.pm = RIPTIDE_PM_OPS,
2162 	},
2163 };
2164 
2165 #ifdef SUPPORT_JOYSTICK
2166 static struct pci_driver joystick_driver = {
2167 	.name = KBUILD_MODNAME "-joystick",
2168 	.id_table = snd_riptide_joystick_ids,
2169 	.probe = snd_riptide_joystick_probe,
2170 	.remove = snd_riptide_joystick_remove,
2171 };
2172 #endif
2173 
2174 static int __init alsa_card_riptide_init(void)
2175 {
2176 	int err;
2177 	err = pci_register_driver(&driver);
2178 	if (err < 0)
2179 		return err;
2180 #if defined(SUPPORT_JOYSTICK)
2181 	err = pci_register_driver(&joystick_driver);
2182 	/* On failure unregister formerly registered audio driver */
2183 	if (err < 0)
2184 		pci_unregister_driver(&driver);
2185 #endif
2186 	return err;
2187 }
2188 
2189 static void __exit alsa_card_riptide_exit(void)
2190 {
2191 	pci_unregister_driver(&driver);
2192 #if defined(SUPPORT_JOYSTICK)
2193 	pci_unregister_driver(&joystick_driver);
2194 #endif
2195 }
2196 
2197 module_init(alsa_card_riptide_init);
2198 module_exit(alsa_card_riptide_exit);
2199