xref: /openbmc/linux/sound/pci/riptide/riptide.c (revision 9ac8d3fb)
1 /*
2  *   Driver for the Conexant Riptide Soundchip
3  *
4  *	Copyright (c) 2004 Peter Gruber <nokos@gmx.net>
5  *
6  *   This program is free software; you can redistribute it and/or modify
7  *   it under the terms of the GNU General Public License as published by
8  *   the Free Software Foundation; either version 2 of the License, or
9  *   (at your option) any later version.
10  *
11  *   This program is distributed in the hope that it will be useful,
12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *   GNU General Public License for more details.
15  *
16  *   You should have received a copy of the GNU General Public License
17  *   along with this program; if not, write to the Free Software
18  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
19  *
20  */
21 /*
22   History:
23    - 02/15/2004 first release
24 
25   This Driver is based on the OSS Driver version from Linuxant (riptide-0.6lnxtbeta03111100)
26   credits from the original files:
27 
28   MODULE NAME:        cnxt_rt.h
29   AUTHOR:             K. Lazarev  (Transcribed by KNL)
30   HISTORY:         Major Revision               Date        By
31             -----------------------------     --------     -----
32             Created                           02/1/2000     KNL
33 
34   MODULE NAME:     int_mdl.c
35   AUTHOR:          Konstantin Lazarev    (Transcribed by KNL)
36   HISTORY:         Major Revision               Date        By
37             -----------------------------     --------     -----
38             Created                           10/01/99      KNL
39 
40   MODULE NAME:        riptide.h
41   AUTHOR:             O. Druzhinin  (Transcribed by OLD)
42   HISTORY:         Major Revision               Date        By
43             -----------------------------     --------     -----
44             Created                           10/16/97      OLD
45 
46   MODULE NAME:        Rp_Cmdif.cpp
47   AUTHOR:             O. Druzhinin  (Transcribed by OLD)
48                       K. Lazarev    (Transcribed by KNL)
49   HISTORY:         Major Revision               Date        By
50             -----------------------------     --------     -----
51             Adopted from NT4 driver            6/22/99      OLD
52             Ported to Linux                    9/01/99      KNL
53 
54   MODULE NAME:        rt_hw.c
55   AUTHOR:             O. Druzhinin  (Transcribed by OLD)
56                       C. Lazarev    (Transcribed by CNL)
57   HISTORY:         Major Revision               Date        By
58             -----------------------------     --------     -----
59             Created                           11/18/97      OLD
60             Hardware functions for RipTide    11/24/97      CNL
61             (ES1) are coded
62             Hardware functions for RipTide    12/24/97      CNL
63             (A0) are coded
64             Hardware functions for RipTide    03/20/98      CNL
65             (A1) are coded
66             Boot loader is included           05/07/98      CNL
67             Redesigned for WDM                07/27/98      CNL
68             Redesigned for Linux              09/01/99      CNL
69 
70   MODULE NAME:        rt_hw.h
71   AUTHOR:             C. Lazarev    (Transcribed by CNL)
72   HISTORY:         Major Revision               Date        By
73             -----------------------------     --------     -----
74             Created                           11/18/97      CNL
75 
76   MODULE NAME:     rt_mdl.c
77   AUTHOR:          Konstantin Lazarev    (Transcribed by KNL)
78   HISTORY:         Major Revision               Date        By
79             -----------------------------     --------     -----
80             Created                           10/01/99      KNL
81 
82   MODULE NAME:        mixer.h
83   AUTHOR:             K. Kenney
84   HISTORY:         Major Revision                   Date          By
85             -----------------------------          --------     -----
86             Created from MS W95 Sample             11/28/95      KRS
87             RipTide                                10/15/97      KRS
88             Adopted for Windows NT driver          01/20/98      CNL
89 */
90 
91 #include <linux/delay.h>
92 #include <linux/init.h>
93 #include <linux/interrupt.h>
94 #include <linux/pci.h>
95 #include <linux/slab.h>
96 #include <linux/wait.h>
97 #include <linux/gameport.h>
98 #include <linux/device.h>
99 #include <linux/firmware.h>
100 #include <asm/io.h>
101 #include <sound/core.h>
102 #include <sound/info.h>
103 #include <sound/control.h>
104 #include <sound/pcm.h>
105 #include <sound/pcm_params.h>
106 #include <sound/ac97_codec.h>
107 #include <sound/mpu401.h>
108 #include <sound/opl3.h>
109 #include <sound/initval.h>
110 
111 #if defined(CONFIG_GAMEPORT) || (defined(MODULE) && defined(CONFIG_GAMEPORT_MODULE))
112 #define SUPPORT_JOYSTICK 1
113 #endif
114 
115 MODULE_AUTHOR("Peter Gruber <nokos@gmx.net>");
116 MODULE_DESCRIPTION("riptide");
117 MODULE_LICENSE("GPL");
118 MODULE_SUPPORTED_DEVICE("{{Conexant,Riptide}}");
119 MODULE_FIRMWARE("riptide.hex");
120 
121 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
122 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
123 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
124 
125 #ifdef SUPPORT_JOYSTICK
126 static int joystick_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x200 };
127 #endif
128 static int mpu_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x330 };
129 static int opl3_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x388 };
130 
131 module_param_array(index, int, NULL, 0444);
132 MODULE_PARM_DESC(index, "Index value for Riptide soundcard.");
133 module_param_array(id, charp, NULL, 0444);
134 MODULE_PARM_DESC(id, "ID string for Riptide soundcard.");
135 module_param_array(enable, bool, NULL, 0444);
136 MODULE_PARM_DESC(enable, "Enable Riptide soundcard.");
137 #ifdef SUPPORT_JOYSTICK
138 module_param_array(joystick_port, int, NULL, 0444);
139 MODULE_PARM_DESC(joystick_port, "Joystick port # for Riptide soundcard.");
140 #endif
141 module_param_array(mpu_port, int, NULL, 0444);
142 MODULE_PARM_DESC(mpu_port, "MPU401 port # for Riptide driver.");
143 module_param_array(opl3_port, int, NULL, 0444);
144 MODULE_PARM_DESC(opl3_port, "OPL3 port # for Riptide driver.");
145 
146 /*
147  */
148 
149 #define MPU401_HW_RIPTIDE MPU401_HW_MPU401
150 #define OPL3_HW_RIPTIDE   OPL3_HW_OPL3
151 
152 #define PCI_EXT_CapId       0x40
153 #define PCI_EXT_NextCapPrt  0x41
154 #define PCI_EXT_PWMC        0x42
155 #define PCI_EXT_PWSCR       0x44
156 #define PCI_EXT_Data00      0x46
157 #define PCI_EXT_PMSCR_BSE   0x47
158 #define PCI_EXT_SB_Base     0x48
159 #define PCI_EXT_FM_Base     0x4a
160 #define PCI_EXT_MPU_Base    0x4C
161 #define PCI_EXT_Game_Base   0x4E
162 #define PCI_EXT_Legacy_Mask 0x50
163 #define PCI_EXT_AsicRev     0x52
164 #define PCI_EXT_Reserved3   0x53
165 
166 #define LEGACY_ENABLE_ALL      0x8000	/* legacy device options */
167 #define LEGACY_ENABLE_SB       0x4000
168 #define LEGACY_ENABLE_FM       0x2000
169 #define LEGACY_ENABLE_MPU_INT  0x1000
170 #define LEGACY_ENABLE_MPU      0x0800
171 #define LEGACY_ENABLE_GAMEPORT 0x0400
172 
173 #define MAX_WRITE_RETRY  10	/* cmd interface limits */
174 #define MAX_ERROR_COUNT  10
175 #define CMDIF_TIMEOUT    500000
176 #define RESET_TRIES      5
177 
178 #define READ_PORT_ULONG(p)     inl((unsigned long)&(p))
179 #define WRITE_PORT_ULONG(p,x)  outl(x,(unsigned long)&(p))
180 
181 #define READ_AUDIO_CONTROL(p)     READ_PORT_ULONG(p->audio_control)
182 #define WRITE_AUDIO_CONTROL(p,x)  WRITE_PORT_ULONG(p->audio_control,x)
183 #define UMASK_AUDIO_CONTROL(p,x)  WRITE_PORT_ULONG(p->audio_control,READ_PORT_ULONG(p->audio_control)|x)
184 #define MASK_AUDIO_CONTROL(p,x)   WRITE_PORT_ULONG(p->audio_control,READ_PORT_ULONG(p->audio_control)&x)
185 #define READ_AUDIO_STATUS(p)      READ_PORT_ULONG(p->audio_status)
186 
187 #define SET_GRESET(p)     UMASK_AUDIO_CONTROL(p,0x0001)	/* global reset switch */
188 #define UNSET_GRESET(p)   MASK_AUDIO_CONTROL(p,~0x0001)
189 #define SET_AIE(p)        UMASK_AUDIO_CONTROL(p,0x0004)	/* interrupt enable */
190 #define UNSET_AIE(p)      MASK_AUDIO_CONTROL(p,~0x0004)
191 #define SET_AIACK(p)      UMASK_AUDIO_CONTROL(p,0x0008)	/* interrupt acknowledge */
192 #define UNSET_AIACKT(p)   MASKAUDIO_CONTROL(p,~0x0008)
193 #define SET_ECMDAE(p)     UMASK_AUDIO_CONTROL(p,0x0010)
194 #define UNSET_ECMDAE(p)   MASK_AUDIO_CONTROL(p,~0x0010)
195 #define SET_ECMDBE(p)     UMASK_AUDIO_CONTROL(p,0x0020)
196 #define UNSET_ECMDBE(p)   MASK_AUDIO_CONTROL(p,~0x0020)
197 #define SET_EDATAF(p)     UMASK_AUDIO_CONTROL(p,0x0040)
198 #define UNSET_EDATAF(p)   MASK_AUDIO_CONTROL(p,~0x0040)
199 #define SET_EDATBF(p)     UMASK_AUDIO_CONTROL(p,0x0080)
200 #define UNSET_EDATBF(p)   MASK_AUDIO_CONTROL(p,~0x0080)
201 #define SET_ESBIRQON(p)   UMASK_AUDIO_CONTROL(p,0x0100)
202 #define UNSET_ESBIRQON(p) MASK_AUDIO_CONTROL(p,~0x0100)
203 #define SET_EMPUIRQ(p)    UMASK_AUDIO_CONTROL(p,0x0200)
204 #define UNSET_EMPUIRQ(p)  MASK_AUDIO_CONTROL(p,~0x0200)
205 #define IS_CMDE(a)        (READ_PORT_ULONG(a->stat)&0x1)	/* cmd empty */
206 #define IS_DATF(a)        (READ_PORT_ULONG(a->stat)&0x2)	/* data filled */
207 #define IS_READY(p)       (READ_AUDIO_STATUS(p)&0x0001)
208 #define IS_DLREADY(p)     (READ_AUDIO_STATUS(p)&0x0002)
209 #define IS_DLERR(p)       (READ_AUDIO_STATUS(p)&0x0004)
210 #define IS_GERR(p)        (READ_AUDIO_STATUS(p)&0x0008)	/* error ! */
211 #define IS_CMDAEIRQ(p)    (READ_AUDIO_STATUS(p)&0x0010)
212 #define IS_CMDBEIRQ(p)    (READ_AUDIO_STATUS(p)&0x0020)
213 #define IS_DATAFIRQ(p)    (READ_AUDIO_STATUS(p)&0x0040)
214 #define IS_DATBFIRQ(p)    (READ_AUDIO_STATUS(p)&0x0080)
215 #define IS_EOBIRQ(p)      (READ_AUDIO_STATUS(p)&0x0100)	/* interrupt status */
216 #define IS_EOSIRQ(p)      (READ_AUDIO_STATUS(p)&0x0200)
217 #define IS_EOCIRQ(p)      (READ_AUDIO_STATUS(p)&0x0400)
218 #define IS_UNSLIRQ(p)     (READ_AUDIO_STATUS(p)&0x0800)
219 #define IS_SBIRQ(p)       (READ_AUDIO_STATUS(p)&0x1000)
220 #define IS_MPUIRQ(p)      (READ_AUDIO_STATUS(p)&0x2000)
221 
222 #define RESP 0x00000001		/* command flags */
223 #define PARM 0x00000002
224 #define CMDA 0x00000004
225 #define CMDB 0x00000008
226 #define NILL 0x00000000
227 
228 #define LONG0(a)   ((u32)a)	/* shifts and masks */
229 #define BYTE0(a)   (LONG0(a)&0xff)
230 #define BYTE1(a)   (BYTE0(a)<<8)
231 #define BYTE2(a)   (BYTE0(a)<<16)
232 #define BYTE3(a)   (BYTE0(a)<<24)
233 #define WORD0(a)   (LONG0(a)&0xffff)
234 #define WORD1(a)   (WORD0(a)<<8)
235 #define WORD2(a)   (WORD0(a)<<16)
236 #define TRINIB0(a) (LONG0(a)&0xffffff)
237 #define TRINIB1(a) (TRINIB0(a)<<8)
238 
239 #define RET(a)     ((union cmdret *)(a))
240 
241 #define SEND_GETV(p,b)             sendcmd(p,RESP,GETV,0,RET(b))	/* get version */
242 #define SEND_GETC(p,b,c)           sendcmd(p,PARM|RESP,GETC,c,RET(b))
243 #define SEND_GUNS(p,b)             sendcmd(p,RESP,GUNS,0,RET(b))
244 #define SEND_SCID(p,b)             sendcmd(p,RESP,SCID,0,RET(b))
245 #define SEND_RMEM(p,b,c,d)         sendcmd(p,PARM|RESP,RMEM|BYTE1(b),LONG0(c),RET(d))	/* memory access for firmware write */
246 #define SEND_SMEM(p,b,c)           sendcmd(p,PARM,SMEM|BYTE1(b),LONG0(c),RET(0))	/* memory access for firmware write */
247 #define SEND_WMEM(p,b,c)           sendcmd(p,PARM,WMEM|BYTE1(b),LONG0(c),RET(0))	/* memory access for firmware write */
248 #define SEND_SDTM(p,b,c)           sendcmd(p,PARM|RESP,SDTM|TRINIB1(b),0,RET(c))	/* memory access for firmware write */
249 #define SEND_GOTO(p,b)             sendcmd(p,PARM,GOTO,LONG0(b),RET(0))	/* memory access for firmware write */
250 #define SEND_SETDPLL(p)	           sendcmd(p,0,ARM_SETDPLL,0,RET(0))
251 #define SEND_SSTR(p,b,c)           sendcmd(p,PARM,SSTR|BYTE3(b),LONG0(c),RET(0))	/* start stream */
252 #define SEND_PSTR(p,b)             sendcmd(p,PARM,PSTR,BYTE3(b),RET(0))	/* pause stream */
253 #define SEND_KSTR(p,b)             sendcmd(p,PARM,KSTR,BYTE3(b),RET(0))	/* stop stream */
254 #define SEND_KDMA(p)               sendcmd(p,0,KDMA,0,RET(0))	/* stop all dma */
255 #define SEND_GPOS(p,b,c,d)         sendcmd(p,PARM|RESP,GPOS,BYTE3(c)|BYTE2(b),RET(d))	/* get position in dma */
256 #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 */
257 #define SEND_GSTS(p,b,c,d)         sendcmd(p,PARM|RESP,GSTS,BYTE3(c)|BYTE2(b),RET(d))
258 #define SEND_NGPOS(p,b,c,d)        sendcmd(p,PARM|RESP,NGPOS,BYTE3(c)|BYTE2(b),RET(d))
259 #define SEND_PSEL(p,b,c)           sendcmd(p,PARM,PSEL,BYTE2(b)|BYTE3(c),RET(0))	/* activate lbus path */
260 #define SEND_PCLR(p,b,c)           sendcmd(p,PARM,PCLR,BYTE2(b)|BYTE3(c),RET(0))	/* deactivate lbus path */
261 #define SEND_PLST(p,b)             sendcmd(p,PARM,PLST,BYTE3(b),RET(0))
262 #define SEND_RSSV(p,b,c,d)         sendcmd(p,PARM|RESP,RSSV,BYTE2(b)|BYTE3(c),RET(d))
263 #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 */
264 #define SEND_SSRC(p,b,c,d,e)       sendcmd(p,PARM,SSRC|BYTE1(b)|WORD2(c),WORD0(d)|WORD2(e),RET(0))	/* configure source */
265 #define SEND_SLST(p,b)             sendcmd(p,PARM,SLST,BYTE3(b),RET(0))
266 #define SEND_RSRC(p,b,c)           sendcmd(p,RESP,RSRC|BYTE1(b),0,RET(c))	/* read source config */
267 #define SEND_SSRB(p,b,c)           sendcmd(p,PARM,SSRB|BYTE1(b),WORD2(c),RET(0))
268 #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 */
269 #define SEND_RDGV(p,b,c,d)         sendcmd(p,PARM|RESP,RDGV|BYTE2(b)|BYTE3(c),0,RET(d))	/* read digital mixer */
270 #define SEND_DLST(p,b)             sendcmd(p,PARM,DLST,BYTE3(b),RET(0))
271 #define SEND_SACR(p,b,c)           sendcmd(p,PARM,SACR,WORD0(b)|WORD2(c),RET(0))	/* set AC97 register */
272 #define SEND_RACR(p,b,c)           sendcmd(p,PARM|RESP,RACR,WORD2(b),RET(c))	/* get AC97 register */
273 #define SEND_ALST(p,b)             sendcmd(p,PARM,ALST,BYTE3(b),RET(0))
274 #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))
275 #define SEND_RXAC(p,b,c,d)         sendcmd(p,PARM|RESP,RXAC,BYTE2(b)|BYTE3(c),RET(d))
276 #define SEND_SI2S(p,b)             sendcmd(p,PARM,SI2S,WORD2(b),RET(0))
277 
278 #define EOB_STATUS         0x80000000	/* status flags : block boundary */
279 #define EOS_STATUS         0x40000000	/*              : stoppped */
280 #define EOC_STATUS         0x20000000	/*              : stream end */
281 #define ERR_STATUS         0x10000000
282 #define EMPTY_STATUS       0x08000000
283 
284 #define IEOB_ENABLE        0x1	/* enable interrupts for status notification above */
285 #define IEOS_ENABLE        0x2
286 #define IEOC_ENABLE        0x4
287 #define RDONCE             0x8
288 #define DESC_MAX_MASK      0xff
289 
290 #define ST_PLAY  0x1		/* stream states */
291 #define ST_STOP  0x2
292 #define ST_PAUSE 0x4
293 
294 #define I2S_INTDEC     3	/* config for I2S link */
295 #define I2S_MERGER     0
296 #define I2S_SPLITTER   0
297 #define I2S_MIXER      7
298 #define I2S_RATE       44100
299 
300 #define MODEM_INTDEC   4	/* config for modem link */
301 #define MODEM_MERGER   3
302 #define MODEM_SPLITTER 0
303 #define MODEM_MIXER    11
304 
305 #define FM_INTDEC      3	/* config for FM/OPL3 link */
306 #define FM_MERGER      0
307 #define FM_SPLITTER    0
308 #define FM_MIXER       9
309 
310 #define SPLIT_PATH  0x80	/* path splitting flag */
311 
312 enum FIRMWARE {
313 	DATA_REC = 0, EXT_END_OF_FILE, EXT_SEG_ADDR_REC, EXT_GOTO_CMD_REC,
314 	EXT_LIN_ADDR_REC,
315 };
316 
317 enum CMDS {
318 	GETV = 0x00, GETC, GUNS, SCID, RMEM =
319 	    0x10, SMEM, WMEM, SDTM, GOTO, SSTR =
320 	    0x20, PSTR, KSTR, KDMA, GPOS, SETF, GSTS, NGPOS, PSEL =
321 	    0x30, PCLR, PLST, RSSV, LSEL, SSRC = 0x40, SLST, RSRC, SSRB, SDGV =
322 	    0x50, RDGV, DLST, SACR = 0x60, RACR, ALST, TXAC, RXAC, SI2S =
323 	    0x70, ARM_SETDPLL = 0x72,
324 };
325 
326 enum E1SOURCE {
327 	ARM2LBUS_FIFO0 = 0, ARM2LBUS_FIFO1, ARM2LBUS_FIFO2, ARM2LBUS_FIFO3,
328 	ARM2LBUS_FIFO4, ARM2LBUS_FIFO5, ARM2LBUS_FIFO6, ARM2LBUS_FIFO7,
329 	ARM2LBUS_FIFO8, ARM2LBUS_FIFO9, ARM2LBUS_FIFO10, ARM2LBUS_FIFO11,
330 	ARM2LBUS_FIFO12, ARM2LBUS_FIFO13, ARM2LBUS_FIFO14, ARM2LBUS_FIFO15,
331 	INTER0_OUT, INTER1_OUT, INTER2_OUT, INTER3_OUT, INTER4_OUT,
332 	INTERM0_OUT, INTERM1_OUT, INTERM2_OUT, INTERM3_OUT, INTERM4_OUT,
333 	INTERM5_OUT, INTERM6_OUT, DECIMM0_OUT, DECIMM1_OUT, DECIMM2_OUT,
334 	DECIMM3_OUT, DECIM0_OUT, SR3_4_OUT, OPL3_SAMPLE, ASRC0, ASRC1,
335 	ACLNK2PADC, ACLNK2MODEM0RX, ACLNK2MIC, ACLNK2MODEM1RX, ACLNK2HNDMIC,
336 	DIGITAL_MIXER_OUT0, GAINFUNC0_OUT, GAINFUNC1_OUT, GAINFUNC2_OUT,
337 	GAINFUNC3_OUT, GAINFUNC4_OUT, SOFTMODEMTX, SPLITTER0_OUTL,
338 	SPLITTER0_OUTR, SPLITTER1_OUTL, SPLITTER1_OUTR, SPLITTER2_OUTL,
339 	SPLITTER2_OUTR, SPLITTER3_OUTL, SPLITTER3_OUTR, MERGER0_OUT,
340 	MERGER1_OUT, MERGER2_OUT, MERGER3_OUT, ARM2LBUS_FIFO_DIRECT, NO_OUT
341 };
342 
343 enum E2SINK {
344 	LBUS2ARM_FIFO0 = 0, LBUS2ARM_FIFO1, LBUS2ARM_FIFO2, LBUS2ARM_FIFO3,
345 	LBUS2ARM_FIFO4, LBUS2ARM_FIFO5, LBUS2ARM_FIFO6, LBUS2ARM_FIFO7,
346 	INTER0_IN, INTER1_IN, INTER2_IN, INTER3_IN, INTER4_IN, INTERM0_IN,
347 	INTERM1_IN, INTERM2_IN, INTERM3_IN, INTERM4_IN, INTERM5_IN, INTERM6_IN,
348 	DECIMM0_IN, DECIMM1_IN, DECIMM2_IN, DECIMM3_IN, DECIM0_IN, SR3_4_IN,
349 	PDAC2ACLNK, MODEM0TX2ACLNK, MODEM1TX2ACLNK, HNDSPK2ACLNK,
350 	DIGITAL_MIXER_IN0, DIGITAL_MIXER_IN1, DIGITAL_MIXER_IN2,
351 	DIGITAL_MIXER_IN3, DIGITAL_MIXER_IN4, DIGITAL_MIXER_IN5,
352 	DIGITAL_MIXER_IN6, DIGITAL_MIXER_IN7, DIGITAL_MIXER_IN8,
353 	DIGITAL_MIXER_IN9, DIGITAL_MIXER_IN10, DIGITAL_MIXER_IN11,
354 	GAINFUNC0_IN, GAINFUNC1_IN, GAINFUNC2_IN, GAINFUNC3_IN, GAINFUNC4_IN,
355 	SOFTMODEMRX, SPLITTER0_IN, SPLITTER1_IN, SPLITTER2_IN, SPLITTER3_IN,
356 	MERGER0_INL, MERGER0_INR, MERGER1_INL, MERGER1_INR, MERGER2_INL,
357 	MERGER2_INR, MERGER3_INL, MERGER3_INR, E2SINK_MAX
358 };
359 
360 enum LBUS_SINK {
361 	LS_SRC_INTERPOLATOR = 0, LS_SRC_INTERPOLATORM, LS_SRC_DECIMATOR,
362 	LS_SRC_DECIMATORM, LS_MIXER_IN, LS_MIXER_GAIN_FUNCTION,
363 	LS_SRC_SPLITTER, LS_SRC_MERGER, LS_NONE1, LS_NONE2,
364 };
365 
366 enum RT_CHANNEL_IDS {
367 	M0TX = 0, M1TX, TAMTX, HSSPKR, PDAC, DSNDTX0, DSNDTX1, DSNDTX2,
368 	DSNDTX3, DSNDTX4, DSNDTX5, DSNDTX6, DSNDTX7, WVSTRTX, COP3DTX, SPARE,
369 	M0RX, HSMIC, M1RX, CLEANRX, MICADC, PADC, COPRX1, COPRX2,
370 	CHANNEL_ID_COUNTER
371 };
372 
373 enum { SB_CMD = 0, MODEM_CMD, I2S_CMD0, I2S_CMD1, FM_CMD, MAX_CMD };
374 
375 struct lbuspath {
376 	unsigned char *noconv;
377 	unsigned char *stereo;
378 	unsigned char *mono;
379 };
380 
381 struct cmdport {
382 	u32 data1;		/* cmd,param */
383 	u32 data2;		/* param */
384 	u32 stat;		/* status */
385 	u32 pad[5];
386 };
387 
388 struct riptideport {
389 	u32 audio_control;	/* status registers */
390 	u32 audio_status;
391 	u32 pad[2];
392 	struct cmdport port[2];	/* command ports */
393 };
394 
395 struct cmdif {
396 	struct riptideport *hwport;
397 	spinlock_t lock;
398 	unsigned int cmdcnt;	/* cmd statistics */
399 	unsigned int cmdtime;
400 	unsigned int cmdtimemax;
401 	unsigned int cmdtimemin;
402 	unsigned int errcnt;
403 	int is_reset;
404 };
405 
406 struct riptide_firmware {
407 	u16 ASIC;
408 	u16 CODEC;
409 	u16 AUXDSP;
410 	u16 PROG;
411 };
412 
413 union cmdret {
414 	u8 retbytes[8];
415 	u16 retwords[4];
416 	u32 retlongs[2];
417 };
418 
419 union firmware_version {
420 	union cmdret ret;
421 	struct riptide_firmware firmware;
422 };
423 
424 #define get_pcmhwdev(substream) (struct pcmhw *)(substream->runtime->private_data)
425 
426 #define PLAYBACK_SUBSTREAMS 3
427 struct snd_riptide {
428 	struct snd_card *card;
429 	struct pci_dev *pci;
430 	const struct firmware *fw_entry;
431 
432 	struct cmdif *cif;
433 
434 	struct snd_pcm *pcm;
435 	struct snd_pcm *pcm_i2s;
436 	struct snd_rawmidi *rmidi;
437 	struct snd_opl3 *opl3;
438 	struct snd_ac97 *ac97;
439 	struct snd_ac97_bus *ac97_bus;
440 
441 	struct snd_pcm_substream *playback_substream[PLAYBACK_SUBSTREAMS];
442 	struct snd_pcm_substream *capture_substream;
443 
444 	int openstreams;
445 
446 	int irq;
447 	unsigned long port;
448 	unsigned short mpuaddr;
449 	unsigned short opladdr;
450 #ifdef SUPPORT_JOYSTICK
451 	unsigned short gameaddr;
452 #endif
453 	struct resource *res_port;
454 
455 	unsigned short device_id;
456 
457 	union firmware_version firmware;
458 
459 	spinlock_t lock;
460 	struct tasklet_struct riptide_tq;
461 	struct snd_info_entry *proc_entry;
462 
463 	unsigned long received_irqs;
464 	unsigned long handled_irqs;
465 #ifdef CONFIG_PM
466 	int in_suspend;
467 #endif
468 };
469 
470 struct sgd {			/* scatter gather desriptor */
471 	u32 dwNextLink;
472 	u32 dwSegPtrPhys;
473 	u32 dwSegLen;
474 	u32 dwStat_Ctl;
475 };
476 
477 struct pcmhw {			/* pcm descriptor */
478 	struct lbuspath paths;
479 	unsigned char *lbuspath;
480 	unsigned char source;
481 	unsigned char intdec[2];
482 	unsigned char mixer;
483 	unsigned char id;
484 	unsigned char state;
485 	unsigned int rate;
486 	unsigned int channels;
487 	snd_pcm_format_t format;
488 	struct snd_dma_buffer sgdlist;
489 	struct sgd *sgdbuf;
490 	unsigned int size;
491 	unsigned int pages;
492 	unsigned int oldpos;
493 	unsigned int pointer;
494 };
495 
496 #define CMDRET_ZERO (union cmdret){{(u32)0, (u32) 0}}
497 
498 static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
499 		   union cmdret *ret);
500 static int getsourcesink(struct cmdif *cif, unsigned char source,
501 			 unsigned char sink, unsigned char *a,
502 			 unsigned char *b);
503 static int snd_riptide_initialize(struct snd_riptide *chip);
504 static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip);
505 
506 /*
507  */
508 
509 static struct pci_device_id snd_riptide_ids[] = {
510 	{
511 	 .vendor = 0x127a,.device = 0x4310,
512 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
513 	 },
514 	{
515 	 .vendor = 0x127a,.device = 0x4320,
516 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
517 	 },
518 	{
519 	 .vendor = 0x127a,.device = 0x4330,
520 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
521 	 },
522 	{
523 	 .vendor = 0x127a,.device = 0x4340,
524 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
525 	 },
526 	{0,},
527 };
528 
529 #ifdef SUPPORT_JOYSTICK
530 static struct pci_device_id snd_riptide_joystick_ids[] __devinitdata = {
531 	{
532 	 .vendor = 0x127a,.device = 0x4312,
533 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
534 	 },
535 	{
536 	 .vendor = 0x127a,.device = 0x4322,
537 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
538 	 },
539 	{.vendor = 0x127a,.device = 0x4332,
540 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
541 	 },
542 	{.vendor = 0x127a,.device = 0x4342,
543 	 .subvendor = PCI_ANY_ID,.subdevice = PCI_ANY_ID,
544 	 },
545 	{0,},
546 };
547 #endif
548 
549 MODULE_DEVICE_TABLE(pci, snd_riptide_ids);
550 
551 /*
552  */
553 
554 static unsigned char lbusin2out[E2SINK_MAX + 1][2] = {
555 	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
556 								     LS_NONE2},
557 	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
558 								     LS_NONE2},
559 	{INTER0_OUT, LS_SRC_INTERPOLATOR}, {INTER1_OUT, LS_SRC_INTERPOLATOR},
560 	{INTER2_OUT, LS_SRC_INTERPOLATOR}, {INTER3_OUT, LS_SRC_INTERPOLATOR},
561 	{INTER4_OUT, LS_SRC_INTERPOLATOR}, {INTERM0_OUT, LS_SRC_INTERPOLATORM},
562 	{INTERM1_OUT, LS_SRC_INTERPOLATORM}, {INTERM2_OUT,
563 					      LS_SRC_INTERPOLATORM},
564 	{INTERM3_OUT, LS_SRC_INTERPOLATORM}, {INTERM4_OUT,
565 					      LS_SRC_INTERPOLATORM},
566 	{INTERM5_OUT, LS_SRC_INTERPOLATORM}, {INTERM6_OUT,
567 					      LS_SRC_INTERPOLATORM},
568 	{DECIMM0_OUT, LS_SRC_DECIMATORM}, {DECIMM1_OUT, LS_SRC_DECIMATORM},
569 	{DECIMM2_OUT, LS_SRC_DECIMATORM}, {DECIMM3_OUT, LS_SRC_DECIMATORM},
570 	{DECIM0_OUT, LS_SRC_DECIMATOR}, {SR3_4_OUT, LS_NONE1}, {NO_OUT,
571 								LS_NONE2},
572 	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1},
573 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
574 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
575 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
576 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
577 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
578 	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
579 	{GAINFUNC0_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC1_OUT,
580 						  LS_MIXER_GAIN_FUNCTION},
581 	{GAINFUNC2_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC3_OUT,
582 						  LS_MIXER_GAIN_FUNCTION},
583 	{GAINFUNC4_OUT, LS_MIXER_GAIN_FUNCTION}, {SOFTMODEMTX, LS_NONE1},
584 	{SPLITTER0_OUTL, LS_SRC_SPLITTER}, {SPLITTER1_OUTL, LS_SRC_SPLITTER},
585 	{SPLITTER2_OUTL, LS_SRC_SPLITTER}, {SPLITTER3_OUTL, LS_SRC_SPLITTER},
586 	{MERGER0_OUT, LS_SRC_MERGER}, {MERGER0_OUT, LS_SRC_MERGER},
587 	{MERGER1_OUT, LS_SRC_MERGER},
588 	{MERGER1_OUT, LS_SRC_MERGER}, {MERGER2_OUT, LS_SRC_MERGER},
589 	{MERGER2_OUT, LS_SRC_MERGER},
590 	{MERGER3_OUT, LS_SRC_MERGER}, {MERGER3_OUT, LS_SRC_MERGER}, {NO_OUT,
591 								     LS_NONE2},
592 };
593 
594 static unsigned char lbus_play_opl3[] = {
595 	DIGITAL_MIXER_IN0 + FM_MIXER, 0xff
596 };
597 static unsigned char lbus_play_modem[] = {
598 	DIGITAL_MIXER_IN0 + MODEM_MIXER, 0xff
599 };
600 static unsigned char lbus_play_i2s[] = {
601 	INTER0_IN + I2S_INTDEC, DIGITAL_MIXER_IN0 + I2S_MIXER, 0xff
602 };
603 static unsigned char lbus_play_out[] = {
604 	PDAC2ACLNK, 0xff
605 };
606 static unsigned char lbus_play_outhp[] = {
607 	HNDSPK2ACLNK, 0xff
608 };
609 static unsigned char lbus_play_noconv1[] = {
610 	DIGITAL_MIXER_IN0, 0xff
611 };
612 static unsigned char lbus_play_stereo1[] = {
613 	INTER0_IN, DIGITAL_MIXER_IN0, 0xff
614 };
615 static unsigned char lbus_play_mono1[] = {
616 	INTERM0_IN, DIGITAL_MIXER_IN0, 0xff
617 };
618 static unsigned char lbus_play_noconv2[] = {
619 	DIGITAL_MIXER_IN1, 0xff
620 };
621 static unsigned char lbus_play_stereo2[] = {
622 	INTER1_IN, DIGITAL_MIXER_IN1, 0xff
623 };
624 static unsigned char lbus_play_mono2[] = {
625 	INTERM1_IN, DIGITAL_MIXER_IN1, 0xff
626 };
627 static unsigned char lbus_play_noconv3[] = {
628 	DIGITAL_MIXER_IN2, 0xff
629 };
630 static unsigned char lbus_play_stereo3[] = {
631 	INTER2_IN, DIGITAL_MIXER_IN2, 0xff
632 };
633 static unsigned char lbus_play_mono3[] = {
634 	INTERM2_IN, DIGITAL_MIXER_IN2, 0xff
635 };
636 static unsigned char lbus_rec_noconv1[] = {
637 	LBUS2ARM_FIFO5, 0xff
638 };
639 static unsigned char lbus_rec_stereo1[] = {
640 	DECIM0_IN, LBUS2ARM_FIFO5, 0xff
641 };
642 static unsigned char lbus_rec_mono1[] = {
643 	DECIMM3_IN, LBUS2ARM_FIFO5, 0xff
644 };
645 
646 static unsigned char play_ids[] = { 4, 1, 2, };
647 static unsigned char play_sources[] = {
648 	ARM2LBUS_FIFO4, ARM2LBUS_FIFO1, ARM2LBUS_FIFO2,
649 };
650 static struct lbuspath lbus_play_paths[] = {
651 	{
652 	 .noconv = lbus_play_noconv1,
653 	 .stereo = lbus_play_stereo1,
654 	 .mono = lbus_play_mono1,
655 	 },
656 	{
657 	 .noconv = lbus_play_noconv2,
658 	 .stereo = lbus_play_stereo2,
659 	 .mono = lbus_play_mono2,
660 	 },
661 	{
662 	 .noconv = lbus_play_noconv3,
663 	 .stereo = lbus_play_stereo3,
664 	 .mono = lbus_play_mono3,
665 	 },
666 };
667 static struct lbuspath lbus_rec_path = {
668 	.noconv = lbus_rec_noconv1,
669 	.stereo = lbus_rec_stereo1,
670 	.mono = lbus_rec_mono1,
671 };
672 
673 #define FIRMWARE_VERSIONS 1
674 static union firmware_version firmware_versions[] = {
675 	{
676 		.firmware = {
677 			.ASIC = 3,
678 			.CODEC = 2,
679 			.AUXDSP = 3,
680 			.PROG = 773,
681 		},
682 	},
683 };
684 
685 static u32 atoh(const unsigned char *in, unsigned int len)
686 {
687 	u32 sum = 0;
688 	unsigned int mult = 1;
689 	unsigned char c;
690 
691 	while (len) {
692 		c = in[len - 1];
693 		if ((c >= '0') && (c <= '9'))
694 			sum += mult * (c - '0');
695 		else if ((c >= 'A') && (c <= 'F'))
696 			sum += mult * (c - ('A' - 10));
697 		else if ((c >= 'a') && (c <= 'f'))
698 			sum += mult * (c - ('a' - 10));
699 		mult *= 16;
700 		--len;
701 	}
702 	return sum;
703 }
704 
705 static int senddata(struct cmdif *cif, const unsigned char *in, u32 offset)
706 {
707 	u32 addr;
708 	u32 data;
709 	u32 i;
710 	const unsigned char *p;
711 
712 	i = atoh(&in[1], 2);
713 	addr = offset + atoh(&in[3], 4);
714 	if (SEND_SMEM(cif, 0, addr) != 0)
715 		return -EACCES;
716 	p = in + 9;
717 	while (i) {
718 		data = atoh(p, 8);
719 		if (SEND_WMEM(cif, 2,
720 			      ((data & 0x0f0f0f0f) << 4) | ((data & 0xf0f0f0f0)
721 							    >> 4)))
722 			return -EACCES;
723 		i -= 4;
724 		p += 8;
725 	}
726 	return 0;
727 }
728 
729 static int loadfirmware(struct cmdif *cif, const unsigned char *img,
730 			unsigned int size)
731 {
732 	const unsigned char *in;
733 	u32 laddr, saddr, t, val;
734 	int err = 0;
735 
736 	laddr = saddr = 0;
737 	while (size > 0 && err == 0) {
738 		in = img;
739 		if (in[0] == ':') {
740 			t = atoh(&in[7], 2);
741 			switch (t) {
742 			case DATA_REC:
743 				err = senddata(cif, in, laddr + saddr);
744 				break;
745 			case EXT_SEG_ADDR_REC:
746 				saddr = atoh(&in[9], 4) << 4;
747 				break;
748 			case EXT_LIN_ADDR_REC:
749 				laddr = atoh(&in[9], 4) << 16;
750 				break;
751 			case EXT_GOTO_CMD_REC:
752 				val = atoh(&in[9], 8);
753 				if (SEND_GOTO(cif, val) != 0)
754 					err = -EACCES;
755 				break;
756 			case EXT_END_OF_FILE:
757 				size = 0;
758 				break;
759 			default:
760 				break;
761 			}
762 			while (size > 0) {
763 				size--;
764 				if (*img++ == '\n')
765 					break;
766 			}
767 		}
768 	}
769 	snd_printdd("load firmware return %d\n", err);
770 	return err;
771 }
772 
773 static void
774 alloclbuspath(struct cmdif *cif, unsigned char source,
775 	      unsigned char *path, unsigned char *mixer, unsigned char *s)
776 {
777 	while (*path != 0xff) {
778 		unsigned char sink, type;
779 
780 		sink = *path & (~SPLIT_PATH);
781 		if (sink != E2SINK_MAX) {
782 			snd_printdd("alloc path 0x%x->0x%x\n", source, sink);
783 			SEND_PSEL(cif, source, sink);
784 			source = lbusin2out[sink][0];
785 			type = lbusin2out[sink][1];
786 			if (type == LS_MIXER_IN) {
787 				if (mixer)
788 					*mixer = sink - DIGITAL_MIXER_IN0;
789 			}
790 			if (type == LS_SRC_DECIMATORM ||
791 			    type == LS_SRC_DECIMATOR ||
792 			    type == LS_SRC_INTERPOLATORM ||
793 			    type == LS_SRC_INTERPOLATOR) {
794 				if (s) {
795 					if (s[0] != 0xff)
796 						s[1] = sink;
797 					else
798 						s[0] = sink;
799 				}
800 			}
801 		}
802 		if (*path++ & SPLIT_PATH) {
803 			unsigned char *npath = path;
804 
805 			while (*npath != 0xff)
806 				npath++;
807 			alloclbuspath(cif, source + 1, ++npath, mixer, s);
808 		}
809 	}
810 }
811 
812 static void
813 freelbuspath(struct cmdif *cif, unsigned char source, unsigned char *path)
814 {
815 	while (*path != 0xff) {
816 		unsigned char sink;
817 
818 		sink = *path & (~SPLIT_PATH);
819 		if (sink != E2SINK_MAX) {
820 			snd_printdd("free path 0x%x->0x%x\n", source, sink);
821 			SEND_PCLR(cif, source, sink);
822 			source = lbusin2out[sink][0];
823 		}
824 		if (*path++ & SPLIT_PATH) {
825 			unsigned char *npath = path;
826 
827 			while (*npath != 0xff)
828 				npath++;
829 			freelbuspath(cif, source + 1, ++npath);
830 		}
831 	}
832 }
833 
834 static int writearm(struct cmdif *cif, u32 addr, u32 data, u32 mask)
835 {
836 	union cmdret rptr = CMDRET_ZERO;
837 	unsigned int i = MAX_WRITE_RETRY;
838 	int flag = 1;
839 
840 	SEND_RMEM(cif, 0x02, addr, &rptr);
841 	rptr.retlongs[0] &= (~mask);
842 
843 	while (--i) {
844 		SEND_SMEM(cif, 0x01, addr);
845 		SEND_WMEM(cif, 0x02, (rptr.retlongs[0] | data));
846 		SEND_RMEM(cif, 0x02, addr, &rptr);
847 		if ((rptr.retlongs[0] & data) == data) {
848 			flag = 0;
849 			break;
850 		} else
851 			rptr.retlongs[0] &= ~mask;
852 	}
853 	snd_printdd("send arm 0x%x 0x%x 0x%x return %d\n", addr, data, mask,
854 		    flag);
855 	return flag;
856 }
857 
858 static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
859 		   union cmdret *ret)
860 {
861 	int i, j;
862 	int err;
863 	unsigned int time = 0;
864 	unsigned long irqflags;
865 	struct riptideport *hwport;
866 	struct cmdport *cmdport = NULL;
867 
868 	if (snd_BUG_ON(!cif))
869 		return -EINVAL;
870 
871 	hwport = cif->hwport;
872 	if (cif->errcnt > MAX_ERROR_COUNT) {
873 		if (cif->is_reset) {
874 			snd_printk(KERN_ERR
875 				   "Riptide: Too many failed cmds, reinitializing\n");
876 			if (riptide_reset(cif, NULL) == 0) {
877 				cif->errcnt = 0;
878 				return -EIO;
879 			}
880 		}
881 		snd_printk(KERN_ERR "Riptide: Initialization failed.\n");
882 		return -EINVAL;
883 	}
884 	if (ret) {
885 		ret->retlongs[0] = 0;
886 		ret->retlongs[1] = 0;
887 	}
888 	i = 0;
889 	spin_lock_irqsave(&cif->lock, irqflags);
890 	while (i++ < CMDIF_TIMEOUT && !IS_READY(cif->hwport))
891 		udelay(10);
892 	if (i >= CMDIF_TIMEOUT) {
893 		err = -EBUSY;
894 		goto errout;
895 	}
896 
897 	err = 0;
898 	for (j = 0, time = 0; time < CMDIF_TIMEOUT; j++, time += 2) {
899 		cmdport = &(hwport->port[j % 2]);
900 		if (IS_DATF(cmdport)) {	/* free pending data */
901 			READ_PORT_ULONG(cmdport->data1);
902 			READ_PORT_ULONG(cmdport->data2);
903 		}
904 		if (IS_CMDE(cmdport)) {
905 			if (flags & PARM)	/* put data */
906 				WRITE_PORT_ULONG(cmdport->data2, parm);
907 			WRITE_PORT_ULONG(cmdport->data1, cmd);	/* write cmd */
908 			if ((flags & RESP) && ret) {
909 				while (!IS_DATF(cmdport) &&
910 				       time++ < CMDIF_TIMEOUT)
911 					udelay(10);
912 				if (time < CMDIF_TIMEOUT) {	/* read response */
913 					ret->retlongs[0] =
914 					    READ_PORT_ULONG(cmdport->data1);
915 					ret->retlongs[1] =
916 					    READ_PORT_ULONG(cmdport->data2);
917 				} else {
918 					err = -ENOSYS;
919 					goto errout;
920 				}
921 			}
922 			break;
923 		}
924 		udelay(20);
925 	}
926 	if (time == CMDIF_TIMEOUT) {
927 		err = -ENODATA;
928 		goto errout;
929 	}
930 	spin_unlock_irqrestore(&cif->lock, irqflags);
931 
932 	cif->cmdcnt++;		/* update command statistics */
933 	cif->cmdtime += time;
934 	if (time > cif->cmdtimemax)
935 		cif->cmdtimemax = time;
936 	if (time < cif->cmdtimemin)
937 		cif->cmdtimemin = time;
938 	if ((cif->cmdcnt) % 1000 == 0)
939 		snd_printdd
940 		    ("send cmd %d time: %d mintime: %d maxtime %d err: %d\n",
941 		     cif->cmdcnt, cif->cmdtime, cif->cmdtimemin,
942 		     cif->cmdtimemax, cif->errcnt);
943 	return 0;
944 
945       errout:
946 	cif->errcnt++;
947 	spin_unlock_irqrestore(&cif->lock, irqflags);
948 	snd_printdd
949 	    ("send cmd %d hw: 0x%x flag: 0x%x cmd: 0x%x parm: 0x%x ret: 0x%x 0x%x CMDE: %d DATF: %d failed %d\n",
950 	     cif->cmdcnt, (int)((void *)&(cmdport->stat) - (void *)hwport),
951 	     flags, cmd, parm, ret ? ret->retlongs[0] : 0,
952 	     ret ? ret->retlongs[1] : 0, IS_CMDE(cmdport), IS_DATF(cmdport),
953 	     err);
954 	return err;
955 }
956 
957 static int
958 setmixer(struct cmdif *cif, short num, unsigned short rval, unsigned short lval)
959 {
960 	union cmdret rptr = CMDRET_ZERO;
961 	int i = 0;
962 
963 	snd_printdd("sent mixer %d: 0x%d 0x%d\n", num, rval, lval);
964 	do {
965 		SEND_SDGV(cif, num, num, rval, lval);
966 		SEND_RDGV(cif, num, num, &rptr);
967 		if (rptr.retwords[0] == lval && rptr.retwords[1] == rval)
968 			return 0;
969 	} while (i++ < MAX_WRITE_RETRY);
970 	snd_printdd("sent mixer failed\n");
971 	return -EIO;
972 }
973 
974 static int getpaths(struct cmdif *cif, unsigned char *o)
975 {
976 	unsigned char src[E2SINK_MAX];
977 	unsigned char sink[E2SINK_MAX];
978 	int i, j = 0;
979 
980 	for (i = 0; i < E2SINK_MAX; i++) {
981 		getsourcesink(cif, i, i, &src[i], &sink[i]);
982 		if (sink[i] < E2SINK_MAX) {
983 			o[j++] = sink[i];
984 			o[j++] = i;
985 		}
986 	}
987 	return j;
988 }
989 
990 static int
991 getsourcesink(struct cmdif *cif, unsigned char source, unsigned char sink,
992 	      unsigned char *a, unsigned char *b)
993 {
994 	union cmdret rptr = CMDRET_ZERO;
995 
996 	if (SEND_RSSV(cif, source, sink, &rptr) &&
997 	    SEND_RSSV(cif, source, sink, &rptr))
998 		return -EIO;
999 	*a = rptr.retbytes[0];
1000 	*b = rptr.retbytes[1];
1001 	snd_printdd("getsourcesink 0x%x 0x%x\n", *a, *b);
1002 	return 0;
1003 }
1004 
1005 static int
1006 getsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int *rate)
1007 {
1008 	unsigned char *s;
1009 	unsigned int p[2] = { 0, 0 };
1010 	int i;
1011 	union cmdret rptr = CMDRET_ZERO;
1012 
1013 	s = intdec;
1014 	for (i = 0; i < 2; i++) {
1015 		if (*s != 0xff) {
1016 			if (SEND_RSRC(cif, *s, &rptr) &&
1017 			    SEND_RSRC(cif, *s, &rptr))
1018 				return -EIO;
1019 			p[i] += rptr.retwords[1];
1020 			p[i] *= rptr.retwords[2];
1021 			p[i] += rptr.retwords[3];
1022 			p[i] /= 65536;
1023 		}
1024 		s++;
1025 	}
1026 	if (p[0]) {
1027 		if (p[1] != p[0])
1028 			snd_printdd("rates differ %d %d\n", p[0], p[1]);
1029 		*rate = (unsigned int)p[0];
1030 	} else
1031 		*rate = (unsigned int)p[1];
1032 	snd_printdd("getsampleformat %d %d %d\n", intdec[0], intdec[1], *rate);
1033 	return 0;
1034 }
1035 
1036 static int
1037 setsampleformat(struct cmdif *cif,
1038 		unsigned char mixer, unsigned char id,
1039 		unsigned char channels, unsigned char format)
1040 {
1041 	unsigned char w, ch, sig, order;
1042 
1043 	snd_printdd
1044 	    ("setsampleformat mixer: %d id: %d channels: %d format: %d\n",
1045 	     mixer, id, channels, format);
1046 	ch = channels == 1;
1047 	w = snd_pcm_format_width(format) == 8;
1048 	sig = snd_pcm_format_unsigned(format) != 0;
1049 	order = snd_pcm_format_big_endian(format) != 0;
1050 
1051 	if (SEND_SETF(cif, mixer, w, ch, order, sig, id) &&
1052 	    SEND_SETF(cif, mixer, w, ch, order, sig, id)) {
1053 		snd_printdd("setsampleformat failed\n");
1054 		return -EIO;
1055 	}
1056 	return 0;
1057 }
1058 
1059 static int
1060 setsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int rate)
1061 {
1062 	u32 D, M, N;
1063 	union cmdret rptr = CMDRET_ZERO;
1064 	int i;
1065 
1066 	snd_printdd("setsamplerate intdec: %d,%d rate: %d\n", intdec[0],
1067 		    intdec[1], rate);
1068 	D = 48000;
1069 	M = ((rate == 48000) ? 47999 : rate) * 65536;
1070 	N = M % D;
1071 	M /= D;
1072 	for (i = 0; i < 2; i++) {
1073 		if (*intdec != 0xff) {
1074 			do {
1075 				SEND_SSRC(cif, *intdec, D, M, N);
1076 				SEND_RSRC(cif, *intdec, &rptr);
1077 			} while (rptr.retwords[1] != D &&
1078 				 rptr.retwords[2] != M &&
1079 				 rptr.retwords[3] != N &&
1080 				 i++ < MAX_WRITE_RETRY);
1081 			if (i == MAX_WRITE_RETRY) {
1082 				snd_printdd("sent samplerate %d: %d failed\n",
1083 					    *intdec, rate);
1084 				return -EIO;
1085 			}
1086 		}
1087 		intdec++;
1088 	}
1089 	return 0;
1090 }
1091 
1092 static int
1093 getmixer(struct cmdif *cif, short num, unsigned short *rval,
1094 	 unsigned short *lval)
1095 {
1096 	union cmdret rptr = CMDRET_ZERO;
1097 
1098 	if (SEND_RDGV(cif, num, num, &rptr) && SEND_RDGV(cif, num, num, &rptr))
1099 		return -EIO;
1100 	*rval = rptr.retwords[0];
1101 	*lval = rptr.retwords[1];
1102 	snd_printdd("got mixer %d: 0x%d 0x%d\n", num, *rval, *lval);
1103 	return 0;
1104 }
1105 
1106 static void riptide_handleirq(unsigned long dev_id)
1107 {
1108 	struct snd_riptide *chip = (void *)dev_id;
1109 	struct cmdif *cif = chip->cif;
1110 	struct snd_pcm_substream *substream[PLAYBACK_SUBSTREAMS + 1];
1111 	struct snd_pcm_runtime *runtime;
1112 	struct pcmhw *data = NULL;
1113 	unsigned int pos, period_bytes;
1114 	struct sgd *c;
1115 	int i, j;
1116 	unsigned int flag;
1117 
1118 	if (!cif)
1119 		return;
1120 
1121 	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++)
1122 		substream[i] = chip->playback_substream[i];
1123 	substream[i] = chip->capture_substream;
1124 	for (i = 0; i < PLAYBACK_SUBSTREAMS + 1; i++) {
1125 		if (substream[i] &&
1126 		    (runtime = substream[i]->runtime) &&
1127 		    (data = runtime->private_data) && data->state != ST_STOP) {
1128 			pos = 0;
1129 			for (j = 0; j < data->pages; j++) {
1130 				c = &data->sgdbuf[j];
1131 				flag = le32_to_cpu(c->dwStat_Ctl);
1132 				if (flag & EOB_STATUS)
1133 					pos += le32_to_cpu(c->dwSegLen);
1134 				if (flag & EOC_STATUS)
1135 					pos += le32_to_cpu(c->dwSegLen);
1136 				if ((flag & EOS_STATUS)
1137 				    && (data->state == ST_PLAY)) {
1138 					data->state = ST_STOP;
1139 					snd_printk(KERN_ERR
1140 						   "Riptide: DMA stopped unexpectedly\n");
1141 				}
1142 				c->dwStat_Ctl =
1143 				    cpu_to_le32(flag &
1144 						~(EOS_STATUS | EOB_STATUS |
1145 						  EOC_STATUS));
1146 			}
1147 			data->pointer += pos;
1148 			pos += data->oldpos;
1149 			if (data->state != ST_STOP) {
1150 				period_bytes =
1151 				    frames_to_bytes(runtime,
1152 						    runtime->period_size);
1153 				snd_printdd
1154 				    ("interrupt 0x%x after 0x%lx of 0x%lx frames in period\n",
1155 				     READ_AUDIO_STATUS(cif->hwport),
1156 				     bytes_to_frames(runtime, pos),
1157 				     runtime->period_size);
1158 				j = 0;
1159 				if (pos >= period_bytes) {
1160 					j++;
1161 					while (pos >= period_bytes)
1162 						pos -= period_bytes;
1163 				}
1164 				data->oldpos = pos;
1165 				if (j > 0)
1166 					snd_pcm_period_elapsed(substream[i]);
1167 			}
1168 		}
1169 	}
1170 }
1171 
1172 #ifdef CONFIG_PM
1173 static int riptide_suspend(struct pci_dev *pci, pm_message_t state)
1174 {
1175 	struct snd_card *card = pci_get_drvdata(pci);
1176 	struct snd_riptide *chip = card->private_data;
1177 
1178 	chip->in_suspend = 1;
1179 	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1180 	snd_pcm_suspend_all(chip->pcm);
1181 	snd_ac97_suspend(chip->ac97);
1182 	pci_disable_device(pci);
1183 	pci_save_state(pci);
1184 	pci_set_power_state(pci, pci_choose_state(pci, state));
1185 	return 0;
1186 }
1187 
1188 static int riptide_resume(struct pci_dev *pci)
1189 {
1190 	struct snd_card *card = pci_get_drvdata(pci);
1191 	struct snd_riptide *chip = card->private_data;
1192 
1193 	pci_set_power_state(pci, PCI_D0);
1194 	pci_restore_state(pci);
1195 	if (pci_enable_device(pci) < 0) {
1196 		printk(KERN_ERR "riptide: pci_enable_device failed, "
1197 		       "disabling device\n");
1198 		snd_card_disconnect(card);
1199 		return -EIO;
1200 	}
1201 	pci_set_master(pci);
1202 	snd_riptide_initialize(chip);
1203 	snd_ac97_resume(chip->ac97);
1204 	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1205 	chip->in_suspend = 0;
1206 	return 0;
1207 }
1208 #endif
1209 
1210 static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip)
1211 {
1212 	int timeout, tries;
1213 	union cmdret rptr = CMDRET_ZERO;
1214 	union firmware_version firmware;
1215 	int i, j, err, has_firmware;
1216 
1217 	if (!cif)
1218 		return -EINVAL;
1219 
1220 	cif->cmdcnt = 0;
1221 	cif->cmdtime = 0;
1222 	cif->cmdtimemax = 0;
1223 	cif->cmdtimemin = 0xffffffff;
1224 	cif->errcnt = 0;
1225 	cif->is_reset = 0;
1226 
1227 	tries = RESET_TRIES;
1228 	has_firmware = 0;
1229 	while (has_firmware == 0 && tries-- > 0) {
1230 		for (i = 0; i < 2; i++) {
1231 			WRITE_PORT_ULONG(cif->hwport->port[i].data1, 0);
1232 			WRITE_PORT_ULONG(cif->hwport->port[i].data2, 0);
1233 		}
1234 		SET_GRESET(cif->hwport);
1235 		udelay(100);
1236 		UNSET_GRESET(cif->hwport);
1237 		udelay(100);
1238 
1239 		for (timeout = 100000; --timeout; udelay(10)) {
1240 			if (IS_READY(cif->hwport) && !IS_GERR(cif->hwport))
1241 				break;
1242 		}
1243 		if (timeout == 0) {
1244 			snd_printk(KERN_ERR
1245 				   "Riptide: device not ready, audio status: 0x%x ready: %d gerr: %d\n",
1246 				   READ_AUDIO_STATUS(cif->hwport),
1247 				   IS_READY(cif->hwport), IS_GERR(cif->hwport));
1248 			return -EIO;
1249 		} else {
1250 			snd_printdd
1251 			    ("Riptide: audio status: 0x%x ready: %d gerr: %d\n",
1252 			     READ_AUDIO_STATUS(cif->hwport),
1253 			     IS_READY(cif->hwport), IS_GERR(cif->hwport));
1254 		}
1255 
1256 		SEND_GETV(cif, &rptr);
1257 		for (i = 0; i < 4; i++)
1258 			firmware.ret.retwords[i] = rptr.retwords[i];
1259 
1260 		snd_printdd
1261 		    ("Firmware version: ASIC: %d CODEC %d AUXDSP %d PROG %d\n",
1262 		     firmware.firmware.ASIC, firmware.firmware.CODEC,
1263 		     firmware.firmware.AUXDSP, firmware.firmware.PROG);
1264 
1265 		for (j = 0; j < FIRMWARE_VERSIONS; j++) {
1266 			has_firmware = 1;
1267 			for (i = 0; i < 4; i++) {
1268 				if (firmware_versions[j].ret.retwords[i] !=
1269 				    firmware.ret.retwords[i])
1270 					has_firmware = 0;
1271 			}
1272 			if (has_firmware)
1273 				break;
1274 		}
1275 
1276 		if (chip != NULL && has_firmware == 0) {
1277 			snd_printdd("Writing Firmware\n");
1278 			if (!chip->fw_entry) {
1279 				if ((err =
1280 				     request_firmware(&chip->fw_entry,
1281 						      "riptide.hex",
1282 						      &chip->pci->dev)) != 0) {
1283 					snd_printk(KERN_ERR
1284 						   "Riptide: Firmware not available %d\n",
1285 						   err);
1286 					return -EIO;
1287 				}
1288 			}
1289 			err = loadfirmware(cif, chip->fw_entry->data,
1290 					   chip->fw_entry->size);
1291 			if (err)
1292 				snd_printk(KERN_ERR
1293 					   "Riptide: Could not load firmware %d\n",
1294 					   err);
1295 		}
1296 	}
1297 
1298 	SEND_SACR(cif, 0, AC97_RESET);
1299 	SEND_RACR(cif, AC97_RESET, &rptr);
1300 	snd_printdd("AC97: 0x%x 0x%x\n", rptr.retlongs[0], rptr.retlongs[1]);
1301 
1302 	SEND_PLST(cif, 0);
1303 	SEND_SLST(cif, 0);
1304 	SEND_DLST(cif, 0);
1305 	SEND_ALST(cif, 0);
1306 	SEND_KDMA(cif);
1307 
1308 	writearm(cif, 0x301F8, 1, 1);
1309 	writearm(cif, 0x301F4, 1, 1);
1310 
1311 	SEND_LSEL(cif, MODEM_CMD, 0, 0, MODEM_INTDEC, MODEM_MERGER,
1312 		  MODEM_SPLITTER, MODEM_MIXER);
1313 	setmixer(cif, MODEM_MIXER, 0x7fff, 0x7fff);
1314 	alloclbuspath(cif, ARM2LBUS_FIFO13, lbus_play_modem, NULL, NULL);
1315 
1316 	SEND_LSEL(cif, FM_CMD, 0, 0, FM_INTDEC, FM_MERGER, FM_SPLITTER,
1317 		  FM_MIXER);
1318 	setmixer(cif, FM_MIXER, 0x7fff, 0x7fff);
1319 	writearm(cif, 0x30648 + FM_MIXER * 4, 0x01, 0x00000005);
1320 	writearm(cif, 0x301A8, 0x02, 0x00000002);
1321 	writearm(cif, 0x30264, 0x08, 0xffffffff);
1322 	alloclbuspath(cif, OPL3_SAMPLE, lbus_play_opl3, NULL, NULL);
1323 
1324 	SEND_SSRC(cif, I2S_INTDEC, 48000,
1325 		  ((u32) I2S_RATE * 65536) / 48000,
1326 		  ((u32) I2S_RATE * 65536) % 48000);
1327 	SEND_LSEL(cif, I2S_CMD0, 0, 0, I2S_INTDEC, I2S_MERGER, I2S_SPLITTER,
1328 		  I2S_MIXER);
1329 	SEND_SI2S(cif, 1);
1330 	alloclbuspath(cif, ARM2LBUS_FIFO0, lbus_play_i2s, NULL, NULL);
1331 	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_out, NULL, NULL);
1332 	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_outhp, NULL, NULL);
1333 
1334 	SET_AIACK(cif->hwport);
1335 	SET_AIE(cif->hwport);
1336 	SET_AIACK(cif->hwport);
1337 	cif->is_reset = 1;
1338 	if (chip) {
1339 		for (i = 0; i < 4; i++)
1340 			chip->firmware.ret.retwords[i] =
1341 			    firmware.ret.retwords[i];
1342 	}
1343 
1344 	return 0;
1345 }
1346 
1347 static struct snd_pcm_hardware snd_riptide_playback = {
1348 	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1349 		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1350 		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1351 	.formats =
1352 	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1353 	    | SNDRV_PCM_FMTBIT_U16_LE,
1354 	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1355 	.rate_min = 5500,
1356 	.rate_max = 48000,
1357 	.channels_min = 1,
1358 	.channels_max = 2,
1359 	.buffer_bytes_max = (64 * 1024),
1360 	.period_bytes_min = PAGE_SIZE >> 1,
1361 	.period_bytes_max = PAGE_SIZE << 8,
1362 	.periods_min = 2,
1363 	.periods_max = 64,
1364 	.fifo_size = 0,
1365 };
1366 static struct snd_pcm_hardware snd_riptide_capture = {
1367 	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1368 		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1369 		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1370 	.formats =
1371 	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1372 	    | SNDRV_PCM_FMTBIT_U16_LE,
1373 	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1374 	.rate_min = 5500,
1375 	.rate_max = 48000,
1376 	.channels_min = 1,
1377 	.channels_max = 2,
1378 	.buffer_bytes_max = (64 * 1024),
1379 	.period_bytes_min = PAGE_SIZE >> 1,
1380 	.period_bytes_max = PAGE_SIZE << 3,
1381 	.periods_min = 2,
1382 	.periods_max = 64,
1383 	.fifo_size = 0,
1384 };
1385 
1386 static snd_pcm_uframes_t snd_riptide_pointer(struct snd_pcm_substream
1387 					     *substream)
1388 {
1389 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1390 	struct snd_pcm_runtime *runtime = substream->runtime;
1391 	struct pcmhw *data = get_pcmhwdev(substream);
1392 	struct cmdif *cif = chip->cif;
1393 	union cmdret rptr = CMDRET_ZERO;
1394 	snd_pcm_uframes_t ret;
1395 
1396 	SEND_GPOS(cif, 0, data->id, &rptr);
1397 	if (data->size && runtime->period_size) {
1398 		snd_printdd
1399 		    ("pointer stream %d position 0x%x(0x%x in buffer) bytes 0x%lx(0x%lx in period) frames\n",
1400 		     data->id, rptr.retlongs[1], rptr.retlongs[1] % data->size,
1401 		     bytes_to_frames(runtime, rptr.retlongs[1]),
1402 		     bytes_to_frames(runtime,
1403 				     rptr.retlongs[1]) % runtime->period_size);
1404 		if (rptr.retlongs[1] > data->pointer)
1405 			ret =
1406 			    bytes_to_frames(runtime,
1407 					    rptr.retlongs[1] % data->size);
1408 		else
1409 			ret =
1410 			    bytes_to_frames(runtime,
1411 					    data->pointer % data->size);
1412 	} else {
1413 		snd_printdd("stream not started or strange parms (%d %ld)\n",
1414 			    data->size, runtime->period_size);
1415 		ret = bytes_to_frames(runtime, 0);
1416 	}
1417 	return ret;
1418 }
1419 
1420 static int snd_riptide_trigger(struct snd_pcm_substream *substream, int cmd)
1421 {
1422 	int i, j;
1423 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1424 	struct pcmhw *data = get_pcmhwdev(substream);
1425 	struct cmdif *cif = chip->cif;
1426 	union cmdret rptr = CMDRET_ZERO;
1427 
1428 	spin_lock(&chip->lock);
1429 	switch (cmd) {
1430 	case SNDRV_PCM_TRIGGER_START:
1431 	case SNDRV_PCM_TRIGGER_RESUME:
1432 		if (!(data->state & ST_PLAY)) {
1433 			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1434 			SET_AIE(cif->hwport);
1435 			data->state = ST_PLAY;
1436 			if (data->mixer != 0xff)
1437 				setmixer(cif, data->mixer, 0x7fff, 0x7fff);
1438 			chip->openstreams++;
1439 			data->oldpos = 0;
1440 			data->pointer = 0;
1441 		}
1442 		break;
1443 	case SNDRV_PCM_TRIGGER_STOP:
1444 	case SNDRV_PCM_TRIGGER_SUSPEND:
1445 		if (data->mixer != 0xff)
1446 			setmixer(cif, data->mixer, 0, 0);
1447 		setmixer(cif, data->mixer, 0, 0);
1448 		SEND_KSTR(cif, data->id);
1449 		data->state = ST_STOP;
1450 		chip->openstreams--;
1451 		j = 0;
1452 		do {
1453 			i = rptr.retlongs[1];
1454 			SEND_GPOS(cif, 0, data->id, &rptr);
1455 			udelay(1);
1456 		} while (i != rptr.retlongs[1] && j++ < MAX_WRITE_RETRY);
1457 		if (j >= MAX_WRITE_RETRY)
1458 			snd_printk(KERN_ERR "Riptide: Could not stop stream!");
1459 		break;
1460 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1461 		if (!(data->state & ST_PAUSE)) {
1462 			SEND_PSTR(cif, data->id);
1463 			data->state |= ST_PAUSE;
1464 			chip->openstreams--;
1465 		}
1466 		break;
1467 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1468 		if (data->state & ST_PAUSE) {
1469 			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1470 			data->state &= ~ST_PAUSE;
1471 			chip->openstreams++;
1472 		}
1473 		break;
1474 	default:
1475 		spin_unlock(&chip->lock);
1476 		return -EINVAL;
1477 	}
1478 	spin_unlock(&chip->lock);
1479 	return 0;
1480 }
1481 
1482 static int snd_riptide_prepare(struct snd_pcm_substream *substream)
1483 {
1484 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1485 	struct snd_pcm_runtime *runtime = substream->runtime;
1486 	struct pcmhw *data = get_pcmhwdev(substream);
1487 	struct cmdif *cif = chip->cif;
1488 	unsigned char *lbuspath = NULL;
1489 	unsigned int rate, channels;
1490 	int err = 0;
1491 	snd_pcm_format_t format;
1492 
1493 	if (snd_BUG_ON(!cif || !data))
1494 		return -EINVAL;
1495 
1496 	snd_printdd("prepare id %d ch: %d f:0x%x r:%d\n", data->id,
1497 		    runtime->channels, runtime->format, runtime->rate);
1498 
1499 	spin_lock_irq(&chip->lock);
1500 	channels = runtime->channels;
1501 	format = runtime->format;
1502 	rate = runtime->rate;
1503 	switch (channels) {
1504 	case 1:
1505 		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1506 			lbuspath = data->paths.noconv;
1507 		else
1508 			lbuspath = data->paths.mono;
1509 		break;
1510 	case 2:
1511 		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1512 			lbuspath = data->paths.noconv;
1513 		else
1514 			lbuspath = data->paths.stereo;
1515 		break;
1516 	}
1517 	snd_printdd("use sgdlist at 0x%p\n",
1518 		    data->sgdlist.area);
1519 	if (data->sgdlist.area) {
1520 		unsigned int i, j, size, pages, f, pt, period;
1521 		struct sgd *c, *p = NULL;
1522 
1523 		size = frames_to_bytes(runtime, runtime->buffer_size);
1524 		period = frames_to_bytes(runtime, runtime->period_size);
1525 		f = PAGE_SIZE;
1526 		while ((size + (f >> 1) - 1) <= (f << 7) && (f << 1) > period)
1527 			f = f >> 1;
1528 		pages = (size + f - 1) / f;
1529 		data->size = size;
1530 		data->pages = pages;
1531 		snd_printdd
1532 		    ("create sgd size: 0x%x pages %d of size 0x%x for period 0x%x\n",
1533 		     size, pages, f, period);
1534 		pt = 0;
1535 		j = 0;
1536 		for (i = 0; i < pages; i++) {
1537 			unsigned int ofs, addr;
1538 			c = &data->sgdbuf[i];
1539 			if (p)
1540 				p->dwNextLink = cpu_to_le32(data->sgdlist.addr +
1541 							    (i *
1542 							     sizeof(struct
1543 								    sgd)));
1544 			c->dwNextLink = cpu_to_le32(data->sgdlist.addr);
1545 			ofs = j << PAGE_SHIFT;
1546 			addr = snd_pcm_sgbuf_get_addr(substream, ofs) + pt;
1547 			c->dwSegPtrPhys = cpu_to_le32(addr);
1548 			pt = (pt + f) % PAGE_SIZE;
1549 			if (pt == 0)
1550 				j++;
1551 			c->dwSegLen = cpu_to_le32(f);
1552 			c->dwStat_Ctl =
1553 			    cpu_to_le32(IEOB_ENABLE | IEOS_ENABLE |
1554 					IEOC_ENABLE);
1555 			p = c;
1556 			size -= f;
1557 		}
1558 		data->sgdbuf[i].dwSegLen = cpu_to_le32(size);
1559 	}
1560 	if (lbuspath && lbuspath != data->lbuspath) {
1561 		if (data->lbuspath)
1562 			freelbuspath(cif, data->source, data->lbuspath);
1563 		alloclbuspath(cif, data->source, lbuspath,
1564 			      &data->mixer, data->intdec);
1565 		data->lbuspath = lbuspath;
1566 		data->rate = 0;
1567 	}
1568 	if (data->rate != rate || data->format != format ||
1569 	    data->channels != channels) {
1570 		data->rate = rate;
1571 		data->format = format;
1572 		data->channels = channels;
1573 		if (setsampleformat
1574 		    (cif, data->mixer, data->id, channels, format)
1575 		    || setsamplerate(cif, data->intdec, rate))
1576 			err = -EIO;
1577 	}
1578 	spin_unlock_irq(&chip->lock);
1579 	return err;
1580 }
1581 
1582 static int
1583 snd_riptide_hw_params(struct snd_pcm_substream *substream,
1584 		      struct snd_pcm_hw_params *hw_params)
1585 {
1586 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1587 	struct pcmhw *data = get_pcmhwdev(substream);
1588 	struct snd_dma_buffer *sgdlist = &data->sgdlist;
1589 	int err;
1590 
1591 	snd_printdd("hw params id %d (sgdlist: 0x%p 0x%lx %d)\n", data->id,
1592 		    sgdlist->area, (unsigned long)sgdlist->addr,
1593 		    (int)sgdlist->bytes);
1594 	if (sgdlist->area)
1595 		snd_dma_free_pages(sgdlist);
1596 	if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
1597 				       snd_dma_pci_data(chip->pci),
1598 				       sizeof(struct sgd) * (DESC_MAX_MASK + 1),
1599 				       sgdlist)) < 0) {
1600 		snd_printk(KERN_ERR "Riptide: failed to alloc %d dma bytes\n",
1601 			   (int)sizeof(struct sgd) * (DESC_MAX_MASK + 1));
1602 		return err;
1603 	}
1604 	data->sgdbuf = (struct sgd *)sgdlist->area;
1605 	return snd_pcm_lib_malloc_pages(substream,
1606 					params_buffer_bytes(hw_params));
1607 }
1608 
1609 static int snd_riptide_hw_free(struct snd_pcm_substream *substream)
1610 {
1611 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1612 	struct pcmhw *data = get_pcmhwdev(substream);
1613 	struct cmdif *cif = chip->cif;
1614 
1615 	if (cif && data) {
1616 		if (data->lbuspath)
1617 			freelbuspath(cif, data->source, data->lbuspath);
1618 		data->lbuspath = NULL;
1619 		data->source = 0xff;
1620 		data->intdec[0] = 0xff;
1621 		data->intdec[1] = 0xff;
1622 
1623 		if (data->sgdlist.area) {
1624 			snd_dma_free_pages(&data->sgdlist);
1625 			data->sgdlist.area = NULL;
1626 		}
1627 	}
1628 	return snd_pcm_lib_free_pages(substream);
1629 }
1630 
1631 static int snd_riptide_playback_open(struct snd_pcm_substream *substream)
1632 {
1633 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1634 	struct snd_pcm_runtime *runtime = substream->runtime;
1635 	struct pcmhw *data;
1636 	int sub_num = substream->number;
1637 
1638 	chip->playback_substream[sub_num] = substream;
1639 	runtime->hw = snd_riptide_playback;
1640 	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
1641 	data->paths = lbus_play_paths[sub_num];
1642 	data->id = play_ids[sub_num];
1643 	data->source = play_sources[sub_num];
1644 	data->intdec[0] = 0xff;
1645 	data->intdec[1] = 0xff;
1646 	data->state = ST_STOP;
1647 	runtime->private_data = data;
1648 	return snd_pcm_hw_constraint_integer(runtime,
1649 					     SNDRV_PCM_HW_PARAM_PERIODS);
1650 }
1651 
1652 static int snd_riptide_capture_open(struct snd_pcm_substream *substream)
1653 {
1654 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1655 	struct snd_pcm_runtime *runtime = substream->runtime;
1656 	struct pcmhw *data;
1657 
1658 	chip->capture_substream = substream;
1659 	runtime->hw = snd_riptide_capture;
1660 	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
1661 	data->paths = lbus_rec_path;
1662 	data->id = PADC;
1663 	data->source = ACLNK2PADC;
1664 	data->intdec[0] = 0xff;
1665 	data->intdec[1] = 0xff;
1666 	data->state = ST_STOP;
1667 	runtime->private_data = data;
1668 	return snd_pcm_hw_constraint_integer(runtime,
1669 					     SNDRV_PCM_HW_PARAM_PERIODS);
1670 }
1671 
1672 static int snd_riptide_playback_close(struct snd_pcm_substream *substream)
1673 {
1674 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1675 	struct pcmhw *data = get_pcmhwdev(substream);
1676 	int sub_num = substream->number;
1677 
1678 	substream->runtime->private_data = NULL;
1679 	chip->playback_substream[sub_num] = NULL;
1680 	kfree(data);
1681 	return 0;
1682 }
1683 
1684 static int snd_riptide_capture_close(struct snd_pcm_substream *substream)
1685 {
1686 	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1687 	struct pcmhw *data = get_pcmhwdev(substream);
1688 
1689 	substream->runtime->private_data = NULL;
1690 	chip->capture_substream = NULL;
1691 	kfree(data);
1692 	return 0;
1693 }
1694 
1695 static struct snd_pcm_ops snd_riptide_playback_ops = {
1696 	.open = snd_riptide_playback_open,
1697 	.close = snd_riptide_playback_close,
1698 	.ioctl = snd_pcm_lib_ioctl,
1699 	.hw_params = snd_riptide_hw_params,
1700 	.hw_free = snd_riptide_hw_free,
1701 	.prepare = snd_riptide_prepare,
1702 	.page = snd_pcm_sgbuf_ops_page,
1703 	.trigger = snd_riptide_trigger,
1704 	.pointer = snd_riptide_pointer,
1705 };
1706 static struct snd_pcm_ops snd_riptide_capture_ops = {
1707 	.open = snd_riptide_capture_open,
1708 	.close = snd_riptide_capture_close,
1709 	.ioctl = snd_pcm_lib_ioctl,
1710 	.hw_params = snd_riptide_hw_params,
1711 	.hw_free = snd_riptide_hw_free,
1712 	.prepare = snd_riptide_prepare,
1713 	.page = snd_pcm_sgbuf_ops_page,
1714 	.trigger = snd_riptide_trigger,
1715 	.pointer = snd_riptide_pointer,
1716 };
1717 
1718 static int __devinit
1719 snd_riptide_pcm(struct snd_riptide *chip, int device, struct snd_pcm **rpcm)
1720 {
1721 	struct snd_pcm *pcm;
1722 	int err;
1723 
1724 	if (rpcm)
1725 		*rpcm = NULL;
1726 	if ((err =
1727 	     snd_pcm_new(chip->card, "RIPTIDE", device, PLAYBACK_SUBSTREAMS, 1,
1728 			 &pcm)) < 0)
1729 		return err;
1730 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1731 			&snd_riptide_playback_ops);
1732 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1733 			&snd_riptide_capture_ops);
1734 	pcm->private_data = chip;
1735 	pcm->info_flags = 0;
1736 	strcpy(pcm->name, "RIPTIDE");
1737 	chip->pcm = pcm;
1738 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1739 					      snd_dma_pci_data(chip->pci),
1740 					      64 * 1024, 128 * 1024);
1741 	if (rpcm)
1742 		*rpcm = pcm;
1743 	return 0;
1744 }
1745 
1746 static irqreturn_t
1747 snd_riptide_interrupt(int irq, void *dev_id)
1748 {
1749 	struct snd_riptide *chip = dev_id;
1750 	struct cmdif *cif = chip->cif;
1751 
1752 	if (cif) {
1753 		chip->received_irqs++;
1754 		if (IS_EOBIRQ(cif->hwport) || IS_EOSIRQ(cif->hwport) ||
1755 		    IS_EOCIRQ(cif->hwport)) {
1756 			chip->handled_irqs++;
1757 			tasklet_hi_schedule(&chip->riptide_tq);
1758 		}
1759 		if (chip->rmidi && IS_MPUIRQ(cif->hwport)) {
1760 			chip->handled_irqs++;
1761 			snd_mpu401_uart_interrupt(irq,
1762 						  chip->rmidi->private_data);
1763 		}
1764 		SET_AIACK(cif->hwport);
1765 	}
1766 	return IRQ_HANDLED;
1767 }
1768 
1769 static void
1770 snd_riptide_codec_write(struct snd_ac97 *ac97, unsigned short reg,
1771 			unsigned short val)
1772 {
1773 	struct snd_riptide *chip = ac97->private_data;
1774 	struct cmdif *cif = chip->cif;
1775 	union cmdret rptr = CMDRET_ZERO;
1776 	int i = 0;
1777 
1778 	if (snd_BUG_ON(!cif))
1779 		return;
1780 
1781 	snd_printdd("Write AC97 reg 0x%x 0x%x\n", reg, val);
1782 	do {
1783 		SEND_SACR(cif, val, reg);
1784 		SEND_RACR(cif, reg, &rptr);
1785 	} while (rptr.retwords[1] != val && i++ < MAX_WRITE_RETRY);
1786 	if (i == MAX_WRITE_RETRY)
1787 		snd_printdd("Write AC97 reg failed\n");
1788 }
1789 
1790 static unsigned short snd_riptide_codec_read(struct snd_ac97 *ac97,
1791 					     unsigned short reg)
1792 {
1793 	struct snd_riptide *chip = ac97->private_data;
1794 	struct cmdif *cif = chip->cif;
1795 	union cmdret rptr = CMDRET_ZERO;
1796 
1797 	if (snd_BUG_ON(!cif))
1798 		return 0;
1799 
1800 	if (SEND_RACR(cif, reg, &rptr) != 0)
1801 		SEND_RACR(cif, reg, &rptr);
1802 	snd_printdd("Read AC97 reg 0x%x got 0x%x\n", reg, rptr.retwords[1]);
1803 	return rptr.retwords[1];
1804 }
1805 
1806 static int snd_riptide_initialize(struct snd_riptide *chip)
1807 {
1808 	struct cmdif *cif;
1809 	unsigned int device_id;
1810 	int err;
1811 
1812 	if (snd_BUG_ON(!chip))
1813 		return -EINVAL;
1814 
1815 	cif = chip->cif;
1816 	if (!cif) {
1817 		if ((cif = kzalloc(sizeof(struct cmdif), GFP_KERNEL)) == NULL)
1818 			return -ENOMEM;
1819 		cif->hwport = (struct riptideport *)chip->port;
1820 		spin_lock_init(&cif->lock);
1821 		chip->cif = cif;
1822 	}
1823 	cif->is_reset = 0;
1824 	if ((err = riptide_reset(cif, chip)) != 0)
1825 		return err;
1826 	device_id = chip->device_id;
1827 	switch (device_id) {
1828 	case 0x4310:
1829 	case 0x4320:
1830 	case 0x4330:
1831 		snd_printdd("Modem enable?\n");
1832 		SEND_SETDPLL(cif);
1833 		break;
1834 	}
1835 	snd_printdd("Enabling MPU IRQs\n");
1836 	if (chip->rmidi)
1837 		SET_EMPUIRQ(cif->hwport);
1838 	return err;
1839 }
1840 
1841 static int snd_riptide_free(struct snd_riptide *chip)
1842 {
1843 	struct cmdif *cif;
1844 
1845 	if (!chip)
1846 		return 0;
1847 
1848 	if ((cif = chip->cif)) {
1849 		SET_GRESET(cif->hwport);
1850 		udelay(100);
1851 		UNSET_GRESET(cif->hwport);
1852 		kfree(chip->cif);
1853 	}
1854 	if (chip->irq >= 0)
1855 		free_irq(chip->irq, chip);
1856 	if (chip->fw_entry)
1857 		release_firmware(chip->fw_entry);
1858 	release_and_free_resource(chip->res_port);
1859 	kfree(chip);
1860 	return 0;
1861 }
1862 
1863 static int snd_riptide_dev_free(struct snd_device *device)
1864 {
1865 	struct snd_riptide *chip = device->device_data;
1866 
1867 	return snd_riptide_free(chip);
1868 }
1869 
1870 static int __devinit
1871 snd_riptide_create(struct snd_card *card, struct pci_dev *pci,
1872 		   struct snd_riptide **rchip)
1873 {
1874 	struct snd_riptide *chip;
1875 	struct riptideport *hwport;
1876 	int err;
1877 	static struct snd_device_ops ops = {
1878 		.dev_free = snd_riptide_dev_free,
1879 	};
1880 
1881 	*rchip = NULL;
1882 	if ((err = pci_enable_device(pci)) < 0)
1883 		return err;
1884 	if (!(chip = kzalloc(sizeof(struct snd_riptide), GFP_KERNEL)))
1885 		return -ENOMEM;
1886 
1887 	spin_lock_init(&chip->lock);
1888 	chip->card = card;
1889 	chip->pci = pci;
1890 	chip->irq = -1;
1891 	chip->openstreams = 0;
1892 	chip->port = pci_resource_start(pci, 0);
1893 	chip->received_irqs = 0;
1894 	chip->handled_irqs = 0;
1895 	chip->cif = NULL;
1896 	tasklet_init(&chip->riptide_tq, riptide_handleirq, (unsigned long)chip);
1897 
1898 	if ((chip->res_port =
1899 	     request_region(chip->port, 64, "RIPTIDE")) == NULL) {
1900 		snd_printk(KERN_ERR
1901 			   "Riptide: unable to grab region 0x%lx-0x%lx\n",
1902 			   chip->port, chip->port + 64 - 1);
1903 		snd_riptide_free(chip);
1904 		return -EBUSY;
1905 	}
1906 	hwport = (struct riptideport *)chip->port;
1907 	UNSET_AIE(hwport);
1908 
1909 	if (request_irq(pci->irq, snd_riptide_interrupt, IRQF_SHARED,
1910 			"RIPTIDE", chip)) {
1911 		snd_printk(KERN_ERR "Riptide: unable to grab IRQ %d\n",
1912 			   pci->irq);
1913 		snd_riptide_free(chip);
1914 		return -EBUSY;
1915 	}
1916 	chip->irq = pci->irq;
1917 	chip->device_id = pci->device;
1918 	pci_set_master(pci);
1919 	if ((err = snd_riptide_initialize(chip)) < 0) {
1920 		snd_riptide_free(chip);
1921 		return err;
1922 	}
1923 
1924 	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
1925 		snd_riptide_free(chip);
1926 		return err;
1927 	}
1928 
1929 	snd_card_set_dev(card, &pci->dev);
1930 
1931 	*rchip = chip;
1932 	return 0;
1933 }
1934 
1935 static void
1936 snd_riptide_proc_read(struct snd_info_entry *entry,
1937 		      struct snd_info_buffer *buffer)
1938 {
1939 	struct snd_riptide *chip = entry->private_data;
1940 	struct pcmhw *data;
1941 	int i;
1942 	struct cmdif *cif = NULL;
1943 	unsigned char p[256];
1944 	unsigned short rval = 0, lval = 0;
1945 	unsigned int rate;
1946 
1947 	if (!chip)
1948 		return;
1949 
1950 	snd_iprintf(buffer, "%s\n\n", chip->card->longname);
1951 	snd_iprintf(buffer, "Device ID: 0x%x\nReceived IRQs: (%ld)%ld\nPorts:",
1952 		    chip->device_id, chip->handled_irqs, chip->received_irqs);
1953 	for (i = 0; i < 64; i += 4)
1954 		snd_iprintf(buffer, "%c%02x: %08x",
1955 			    (i % 16) ? ' ' : '\n', i, inl(chip->port + i));
1956 	if ((cif = chip->cif)) {
1957 		snd_iprintf(buffer,
1958 			    "\nVersion: ASIC: %d CODEC: %d AUXDSP: %d PROG: %d",
1959 			    chip->firmware.firmware.ASIC,
1960 			    chip->firmware.firmware.CODEC,
1961 			    chip->firmware.firmware.AUXDSP,
1962 			    chip->firmware.firmware.PROG);
1963 		snd_iprintf(buffer, "\nDigital mixer:");
1964 		for (i = 0; i < 12; i++) {
1965 			getmixer(cif, i, &rval, &lval);
1966 			snd_iprintf(buffer, "\n %d: %d %d", i, rval, lval);
1967 		}
1968 		snd_iprintf(buffer,
1969 			    "\nARM Commands num: %d failed: %d time: %d max: %d min: %d",
1970 			    cif->cmdcnt, cif->errcnt,
1971 			    cif->cmdtime, cif->cmdtimemax, cif->cmdtimemin);
1972 	}
1973 	snd_iprintf(buffer, "\nOpen streams %d:\n", chip->openstreams);
1974 	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++) {
1975 		if (chip->playback_substream[i]
1976 		    && chip->playback_substream[i]->runtime
1977 		    && (data =
1978 			chip->playback_substream[i]->runtime->private_data)) {
1979 			snd_iprintf(buffer,
1980 				    "stream: %d mixer: %d source: %d (%d,%d)\n",
1981 				    data->id, data->mixer, data->source,
1982 				    data->intdec[0], data->intdec[1]);
1983 			if (!(getsamplerate(cif, data->intdec, &rate)))
1984 				snd_iprintf(buffer, "rate: %d\n", rate);
1985 		}
1986 	}
1987 	if (chip->capture_substream
1988 	    && chip->capture_substream->runtime
1989 	    && (data = chip->capture_substream->runtime->private_data)) {
1990 		snd_iprintf(buffer,
1991 			    "stream: %d mixer: %d source: %d (%d,%d)\n",
1992 			    data->id, data->mixer,
1993 			    data->source, data->intdec[0], data->intdec[1]);
1994 		if (!(getsamplerate(cif, data->intdec, &rate)))
1995 			snd_iprintf(buffer, "rate: %d\n", rate);
1996 	}
1997 	snd_iprintf(buffer, "Paths:\n");
1998 	i = getpaths(cif, p);
1999 	while (i--) {
2000 		snd_iprintf(buffer, "%x->%x ", p[i - 1], p[i]);
2001 		i--;
2002 	}
2003 	snd_iprintf(buffer, "\n");
2004 }
2005 
2006 static void __devinit snd_riptide_proc_init(struct snd_riptide *chip)
2007 {
2008 	struct snd_info_entry *entry;
2009 
2010 	if (!snd_card_proc_new(chip->card, "riptide", &entry))
2011 		snd_info_set_text_ops(entry, chip, snd_riptide_proc_read);
2012 }
2013 
2014 static int __devinit snd_riptide_mixer(struct snd_riptide *chip)
2015 {
2016 	struct snd_ac97_bus *pbus;
2017 	struct snd_ac97_template ac97;
2018 	int err = 0;
2019 	static struct snd_ac97_bus_ops ops = {
2020 		.write = snd_riptide_codec_write,
2021 		.read = snd_riptide_codec_read,
2022 	};
2023 
2024 	memset(&ac97, 0, sizeof(ac97));
2025 	ac97.private_data = chip;
2026 	ac97.scaps = AC97_SCAP_SKIP_MODEM;
2027 
2028 	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
2029 		return err;
2030 
2031 	chip->ac97_bus = pbus;
2032 	ac97.pci = chip->pci;
2033 	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
2034 		return err;
2035 	return err;
2036 }
2037 
2038 #ifdef SUPPORT_JOYSTICK
2039 static int have_joystick;
2040 static struct pci_dev *riptide_gameport_pci;
2041 static struct gameport *riptide_gameport;
2042 
2043 static int __devinit
2044 snd_riptide_joystick_probe(struct pci_dev *pci, const struct pci_device_id *id)
2045 {
2046 	static int dev;
2047 
2048 	if (dev >= SNDRV_CARDS)
2049 		return -ENODEV;
2050 	if (!enable[dev]) {
2051 		dev++;
2052 		return -ENOENT;
2053 	}
2054 
2055 	if (joystick_port[dev]) {
2056 		riptide_gameport = gameport_allocate_port();
2057 		if (riptide_gameport) {
2058 			if (!request_region
2059 			    (joystick_port[dev], 8, "Riptide gameport")) {
2060 				snd_printk(KERN_WARNING
2061 					   "Riptide: cannot grab gameport 0x%x\n",
2062 					   joystick_port[dev]);
2063 				gameport_free_port(riptide_gameport);
2064 				riptide_gameport = NULL;
2065 			} else {
2066 				riptide_gameport_pci = pci;
2067 				riptide_gameport->io = joystick_port[dev];
2068 				gameport_register_port(riptide_gameport);
2069 			}
2070 		}
2071 	}
2072 	dev++;
2073 	return 0;
2074 }
2075 
2076 static void __devexit snd_riptide_joystick_remove(struct pci_dev *pci)
2077 {
2078 	if (riptide_gameport) {
2079 		if (riptide_gameport_pci == pci) {
2080 			release_region(riptide_gameport->io, 8);
2081 			riptide_gameport_pci = NULL;
2082 			gameport_unregister_port(riptide_gameport);
2083 			riptide_gameport = NULL;
2084 		}
2085 	}
2086 }
2087 #endif
2088 
2089 static int __devinit
2090 snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2091 {
2092 	static int dev;
2093 	struct snd_card *card;
2094 	struct snd_riptide *chip;
2095 	unsigned short addr;
2096 	int err = 0;
2097 
2098 	if (dev >= SNDRV_CARDS)
2099 		return -ENODEV;
2100 	if (!enable[dev]) {
2101 		dev++;
2102 		return -ENOENT;
2103 	}
2104 
2105 	card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0);
2106 	if (card == NULL)
2107 		return -ENOMEM;
2108 	if ((err = snd_riptide_create(card, pci, &chip)) < 0) {
2109 		snd_card_free(card);
2110 		return err;
2111 	}
2112 	card->private_data = chip;
2113 	if ((err = snd_riptide_pcm(chip, 0, NULL)) < 0) {
2114 		snd_card_free(card);
2115 		return err;
2116 	}
2117 	if ((err = snd_riptide_mixer(chip)) < 0) {
2118 		snd_card_free(card);
2119 		return err;
2120 	}
2121 	pci_write_config_word(chip->pci, PCI_EXT_Legacy_Mask, LEGACY_ENABLE_ALL
2122 			      | (opl3_port[dev] ? LEGACY_ENABLE_FM : 0)
2123 #ifdef SUPPORT_JOYSTICK
2124 			      | (joystick_port[dev] ? LEGACY_ENABLE_GAMEPORT :
2125 				 0)
2126 #endif
2127 			      | (mpu_port[dev]
2128 				 ? (LEGACY_ENABLE_MPU_INT | LEGACY_ENABLE_MPU) :
2129 				 0)
2130 			      | ((chip->irq << 4) & 0xF0));
2131 	if ((addr = mpu_port[dev]) != 0) {
2132 		pci_write_config_word(chip->pci, PCI_EXT_MPU_Base, addr);
2133 		if ((err = snd_mpu401_uart_new(card, 0, MPU401_HW_RIPTIDE,
2134 					       addr, 0, chip->irq, 0,
2135 					       &chip->rmidi)) < 0)
2136 			snd_printk(KERN_WARNING
2137 				   "Riptide: Can't Allocate MPU at 0x%x\n",
2138 				   addr);
2139 		else
2140 			chip->mpuaddr = addr;
2141 	}
2142 	if ((addr = opl3_port[dev]) != 0) {
2143 		pci_write_config_word(chip->pci, PCI_EXT_FM_Base, addr);
2144 		if ((err = snd_opl3_create(card, addr, addr + 2,
2145 					   OPL3_HW_RIPTIDE, 0,
2146 					   &chip->opl3)) < 0)
2147 			snd_printk(KERN_WARNING
2148 				   "Riptide: Can't Allocate OPL3 at 0x%x\n",
2149 				   addr);
2150 		else {
2151 			chip->opladdr = addr;
2152 			if ((err =
2153 			     snd_opl3_hwdep_new(chip->opl3, 0, 1, NULL)) < 0)
2154 				snd_printk(KERN_WARNING
2155 					   "Riptide: Can't Allocate OPL3-HWDEP\n");
2156 		}
2157 	}
2158 #ifdef SUPPORT_JOYSTICK
2159 	if ((addr = joystick_port[dev]) != 0) {
2160 		pci_write_config_word(chip->pci, PCI_EXT_Game_Base, addr);
2161 		chip->gameaddr = addr;
2162 	}
2163 #endif
2164 
2165 	strcpy(card->driver, "RIPTIDE");
2166 	strcpy(card->shortname, "Riptide");
2167 #ifdef SUPPORT_JOYSTICK
2168 	snprintf(card->longname, sizeof(card->longname),
2169 		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x gameport 0x%x",
2170 		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
2171 		 chip->opladdr, chip->gameaddr);
2172 #else
2173 	snprintf(card->longname, sizeof(card->longname),
2174 		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x",
2175 		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
2176 		 chip->opladdr);
2177 #endif
2178 	snd_riptide_proc_init(chip);
2179 	if ((err = snd_card_register(card)) < 0) {
2180 		snd_card_free(card);
2181 		return err;
2182 	}
2183 	pci_set_drvdata(pci, card);
2184 	dev++;
2185 	return 0;
2186 }
2187 
2188 static void __devexit snd_card_riptide_remove(struct pci_dev *pci)
2189 {
2190 	snd_card_free(pci_get_drvdata(pci));
2191 	pci_set_drvdata(pci, NULL);
2192 }
2193 
2194 static struct pci_driver driver = {
2195 	.name = "RIPTIDE",
2196 	.id_table = snd_riptide_ids,
2197 	.probe = snd_card_riptide_probe,
2198 	.remove = __devexit_p(snd_card_riptide_remove),
2199 #ifdef CONFIG_PM
2200 	.suspend = riptide_suspend,
2201 	.resume = riptide_resume,
2202 #endif
2203 };
2204 
2205 #ifdef SUPPORT_JOYSTICK
2206 static struct pci_driver joystick_driver = {
2207 	.name = "Riptide Joystick",
2208 	.id_table = snd_riptide_joystick_ids,
2209 	.probe = snd_riptide_joystick_probe,
2210 	.remove = __devexit_p(snd_riptide_joystick_remove),
2211 };
2212 #endif
2213 
2214 static int __init alsa_card_riptide_init(void)
2215 {
2216 	int err;
2217 	if ((err = pci_register_driver(&driver)) < 0)
2218 		return err;
2219 #if defined(SUPPORT_JOYSTICK)
2220 	if (pci_register_driver(&joystick_driver) < 0) {
2221 		have_joystick = 0;
2222 		snd_printk(KERN_INFO "no joystick found\n");
2223 	} else
2224 		have_joystick = 1;
2225 #endif
2226 	return 0;
2227 }
2228 
2229 static void __exit alsa_card_riptide_exit(void)
2230 {
2231 	pci_unregister_driver(&driver);
2232 #if defined(SUPPORT_JOYSTICK)
2233 	if (have_joystick)
2234 		pci_unregister_driver(&joystick_driver);
2235 #endif
2236 }
2237 
2238 module_init(alsa_card_riptide_init);
2239 module_exit(alsa_card_riptide_exit);
2240