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