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riptide.c

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linux-6.19.14/sound/pci/riptide/riptide.c C
   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 device *dev;
 384	struct riptideport *hwport;
 385	spinlock_t lock;
 386	unsigned int cmdcnt;	/* cmd statistics */
 387	unsigned int cmdtime;
 388	unsigned int cmdtimemax;
 389	unsigned int cmdtimemin;
 390	unsigned int errcnt;
 391	int is_reset;
 392};
 393
 394struct riptide_firmware {
 395	u16 ASIC;
 396	u16 CODEC;
 397	u16 AUXDSP;
 398	u16 PROG;
 399};
 400
 401union cmdret {
 402	u8 retbytes[8];
 403	u16 retwords[4];
 404	u32 retlongs[2];
 405};
 406
 407union firmware_version {
 408	union cmdret ret;
 409	struct riptide_firmware firmware;
 410};
 411
 412#define get_pcmhwdev(substream) (struct pcmhw *)(substream->runtime->private_data)
 413
 414#define PLAYBACK_SUBSTREAMS 3
 415struct snd_riptide {
 416	struct snd_card *card;
 417	struct pci_dev *pci;
 418	const struct firmware *fw_entry;
 419
 420	struct cmdif *cif;
 421
 422	struct snd_pcm *pcm;
 423	struct snd_pcm *pcm_i2s;
 424	struct snd_rawmidi *rmidi;
 425	struct snd_opl3 *opl3;
 426	struct snd_ac97 *ac97;
 427	struct snd_ac97_bus *ac97_bus;
 428
 429	struct snd_pcm_substream *playback_substream[PLAYBACK_SUBSTREAMS];
 430	struct snd_pcm_substream *capture_substream;
 431
 432	int openstreams;
 433
 434	int irq;
 435	unsigned long port;
 436	unsigned short mpuaddr;
 437	unsigned short opladdr;
 438#ifdef SUPPORT_JOYSTICK
 439	unsigned short gameaddr;
 440#endif
 441	struct resource *res_port;
 442
 443	unsigned short device_id;
 444
 445	union firmware_version firmware;
 446
 447	spinlock_t lock;
 448	struct snd_info_entry *proc_entry;
 449
 450	unsigned long received_irqs;
 451	unsigned long handled_irqs;
 452	int in_suspend;
 453};
 454
 455struct sgd {			/* scatter gather desriptor */
 456	__le32 dwNextLink;
 457	__le32 dwSegPtrPhys;
 458	__le32 dwSegLen;
 459	__le32 dwStat_Ctl;
 460};
 461
 462struct pcmhw {			/* pcm descriptor */
 463	struct lbuspath paths;
 464	const unsigned char *lbuspath;
 465	unsigned char source;
 466	unsigned char intdec[2];
 467	unsigned char mixer;
 468	unsigned char id;
 469	unsigned char state;
 470	unsigned int rate;
 471	unsigned int channels;
 472	snd_pcm_format_t format;
 473	struct snd_dma_buffer sgdlist;
 474	struct sgd *sgdbuf;
 475	unsigned int size;
 476	unsigned int pages;
 477	unsigned int oldpos;
 478	unsigned int pointer;
 479};
 480
 481#define CMDRET_ZERO (union cmdret){{(u32)0, (u32) 0}}
 482
 483static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
 484		   union cmdret *ret);
 485static int getsourcesink(struct cmdif *cif, unsigned char source,
 486			 unsigned char sink, unsigned char *a,
 487			 unsigned char *b);
 488static int snd_riptide_initialize(struct snd_riptide *chip);
 489static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip);
 490
 491/*
 492 */
 493
 494static const struct pci_device_id snd_riptide_ids[] = {
 495	{ PCI_DEVICE(0x127a, 0x4310) },
 496	{ PCI_DEVICE(0x127a, 0x4320) },
 497	{ PCI_DEVICE(0x127a, 0x4330) },
 498	{ PCI_DEVICE(0x127a, 0x4340) },
 499	{0,},
 500};
 501
 502#ifdef SUPPORT_JOYSTICK
 503static const struct pci_device_id snd_riptide_joystick_ids[] = {
 504	{ PCI_DEVICE(0x127a, 0x4312) },
 505	{ PCI_DEVICE(0x127a, 0x4322) },
 506	{ PCI_DEVICE(0x127a, 0x4332) },
 507	{ PCI_DEVICE(0x127a, 0x4342) },
 508	{0,},
 509};
 510#endif
 511
 512MODULE_DEVICE_TABLE(pci, snd_riptide_ids);
 513
 514/*
 515 */
 516
 517static const unsigned char lbusin2out[E2SINK_MAX + 1][2] = {
 518	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
 519								     LS_NONE2},
 520	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
 521								     LS_NONE2},
 522	{INTER0_OUT, LS_SRC_INTERPOLATOR}, {INTER1_OUT, LS_SRC_INTERPOLATOR},
 523	{INTER2_OUT, LS_SRC_INTERPOLATOR}, {INTER3_OUT, LS_SRC_INTERPOLATOR},
 524	{INTER4_OUT, LS_SRC_INTERPOLATOR}, {INTERM0_OUT, LS_SRC_INTERPOLATORM},
 525	{INTERM1_OUT, LS_SRC_INTERPOLATORM}, {INTERM2_OUT,
 526					      LS_SRC_INTERPOLATORM},
 527	{INTERM3_OUT, LS_SRC_INTERPOLATORM}, {INTERM4_OUT,
 528					      LS_SRC_INTERPOLATORM},
 529	{INTERM5_OUT, LS_SRC_INTERPOLATORM}, {INTERM6_OUT,
 530					      LS_SRC_INTERPOLATORM},
 531	{DECIMM0_OUT, LS_SRC_DECIMATORM}, {DECIMM1_OUT, LS_SRC_DECIMATORM},
 532	{DECIMM2_OUT, LS_SRC_DECIMATORM}, {DECIMM3_OUT, LS_SRC_DECIMATORM},
 533	{DECIM0_OUT, LS_SRC_DECIMATOR}, {SR3_4_OUT, LS_NONE1}, {NO_OUT,
 534								LS_NONE2},
 535	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1},
 536	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
 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	{GAINFUNC0_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC1_OUT,
 543						  LS_MIXER_GAIN_FUNCTION},
 544	{GAINFUNC2_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC3_OUT,
 545						  LS_MIXER_GAIN_FUNCTION},
 546	{GAINFUNC4_OUT, LS_MIXER_GAIN_FUNCTION}, {SOFTMODEMTX, LS_NONE1},
 547	{SPLITTER0_OUTL, LS_SRC_SPLITTER}, {SPLITTER1_OUTL, LS_SRC_SPLITTER},
 548	{SPLITTER2_OUTL, LS_SRC_SPLITTER}, {SPLITTER3_OUTL, LS_SRC_SPLITTER},
 549	{MERGER0_OUT, LS_SRC_MERGER}, {MERGER0_OUT, LS_SRC_MERGER},
 550	{MERGER1_OUT, LS_SRC_MERGER},
 551	{MERGER1_OUT, LS_SRC_MERGER}, {MERGER2_OUT, LS_SRC_MERGER},
 552	{MERGER2_OUT, LS_SRC_MERGER},
 553	{MERGER3_OUT, LS_SRC_MERGER}, {MERGER3_OUT, LS_SRC_MERGER}, {NO_OUT,
 554								     LS_NONE2},
 555};
 556
 557static const unsigned char lbus_play_opl3[] = {
 558	DIGITAL_MIXER_IN0 + FM_MIXER, 0xff
 559};
 560static const unsigned char lbus_play_modem[] = {
 561	DIGITAL_MIXER_IN0 + MODEM_MIXER, 0xff
 562};
 563static const unsigned char lbus_play_i2s[] = {
 564	INTER0_IN + I2S_INTDEC, DIGITAL_MIXER_IN0 + I2S_MIXER, 0xff
 565};
 566static const unsigned char lbus_play_out[] = {
 567	PDAC2ACLNK, 0xff
 568};
 569static const unsigned char lbus_play_outhp[] = {
 570	HNDSPK2ACLNK, 0xff
 571};
 572static const unsigned char lbus_play_noconv1[] = {
 573	DIGITAL_MIXER_IN0, 0xff
 574};
 575static const unsigned char lbus_play_stereo1[] = {
 576	INTER0_IN, DIGITAL_MIXER_IN0, 0xff
 577};
 578static const unsigned char lbus_play_mono1[] = {
 579	INTERM0_IN, DIGITAL_MIXER_IN0, 0xff
 580};
 581static const unsigned char lbus_play_noconv2[] = {
 582	DIGITAL_MIXER_IN1, 0xff
 583};
 584static const unsigned char lbus_play_stereo2[] = {
 585	INTER1_IN, DIGITAL_MIXER_IN1, 0xff
 586};
 587static const unsigned char lbus_play_mono2[] = {
 588	INTERM1_IN, DIGITAL_MIXER_IN1, 0xff
 589};
 590static const unsigned char lbus_play_noconv3[] = {
 591	DIGITAL_MIXER_IN2, 0xff
 592};
 593static const unsigned char lbus_play_stereo3[] = {
 594	INTER2_IN, DIGITAL_MIXER_IN2, 0xff
 595};
 596static const unsigned char lbus_play_mono3[] = {
 597	INTERM2_IN, DIGITAL_MIXER_IN2, 0xff
 598};
 599static const unsigned char lbus_rec_noconv1[] = {
 600	LBUS2ARM_FIFO5, 0xff
 601};
 602static const unsigned char lbus_rec_stereo1[] = {
 603	DECIM0_IN, LBUS2ARM_FIFO5, 0xff
 604};
 605static const unsigned char lbus_rec_mono1[] = {
 606	DECIMM3_IN, LBUS2ARM_FIFO5, 0xff
 607};
 608
 609static const unsigned char play_ids[] = { 4, 1, 2, };
 610static const unsigned char play_sources[] = {
 611	ARM2LBUS_FIFO4, ARM2LBUS_FIFO1, ARM2LBUS_FIFO2,
 612};
 613static const struct lbuspath lbus_play_paths[] = {
 614	{
 615	 .noconv = lbus_play_noconv1,
 616	 .stereo = lbus_play_stereo1,
 617	 .mono = lbus_play_mono1,
 618	 },
 619	{
 620	 .noconv = lbus_play_noconv2,
 621	 .stereo = lbus_play_stereo2,
 622	 .mono = lbus_play_mono2,
 623	 },
 624	{
 625	 .noconv = lbus_play_noconv3,
 626	 .stereo = lbus_play_stereo3,
 627	 .mono = lbus_play_mono3,
 628	 },
 629};
 630static const struct lbuspath lbus_rec_path = {
 631	.noconv = lbus_rec_noconv1,
 632	.stereo = lbus_rec_stereo1,
 633	.mono = lbus_rec_mono1,
 634};
 635
 636#define FIRMWARE_VERSIONS 1
 637static union firmware_version firmware_versions[] = {
 638	{
 639		.firmware = {
 640			.ASIC = 3,
 641			.CODEC = 2,
 642			.AUXDSP = 3,
 643			.PROG = 773,
 644		},
 645	},
 646};
 647
 648static u32 atoh(const unsigned char *in, unsigned int len)
 649{
 650	u32 sum = 0;
 651	unsigned int mult = 1;
 652	unsigned char c;
 653
 654	while (len) {
 655		int value;
 656
 657		c = in[len - 1];
 658		value = hex_to_bin(c);
 659		if (value >= 0)
 660			sum += mult * value;
 661		mult *= 16;
 662		--len;
 663	}
 664	return sum;
 665}
 666
 667static int senddata(struct cmdif *cif, const unsigned char *in, u32 offset)
 668{
 669	u32 addr;
 670	u32 data;
 671	u32 i;
 672	const unsigned char *p;
 673
 674	i = atoh(&in[1], 2);
 675	addr = offset + atoh(&in[3], 4);
 676	if (SEND_SMEM(cif, 0, addr) != 0)
 677		return -EACCES;
 678	p = in + 9;
 679	while (i) {
 680		data = atoh(p, 8);
 681		if (SEND_WMEM(cif, 2,
 682			      ((data & 0x0f0f0f0f) << 4) | ((data & 0xf0f0f0f0)
 683							    >> 4)))
 684			return -EACCES;
 685		i -= 4;
 686		p += 8;
 687	}
 688	return 0;
 689}
 690
 691static int loadfirmware(struct cmdif *cif, const unsigned char *img,
 692			unsigned int size)
 693{
 694	const unsigned char *in;
 695	u32 laddr, saddr, t, val;
 696	int err = 0;
 697
 698	laddr = saddr = 0;
 699	while (size > 0 && err == 0) {
 700		in = img;
 701		if (in[0] == ':') {
 702			t = atoh(&in[7], 2);
 703			switch (t) {
 704			case DATA_REC:
 705				err = senddata(cif, in, laddr + saddr);
 706				break;
 707			case EXT_SEG_ADDR_REC:
 708				saddr = atoh(&in[9], 4) << 4;
 709				break;
 710			case EXT_LIN_ADDR_REC:
 711				laddr = atoh(&in[9], 4) << 16;
 712				break;
 713			case EXT_GOTO_CMD_REC:
 714				val = atoh(&in[9], 8);
 715				if (SEND_GOTO(cif, val) != 0)
 716					err = -EACCES;
 717				break;
 718			case EXT_END_OF_FILE:
 719				size = 0;
 720				break;
 721			default:
 722				break;
 723			}
 724			while (size > 0) {
 725				size--;
 726				if (*img++ == '\n')
 727					break;
 728			}
 729		}
 730	}
 731	dev_dbg(cif->dev, "load firmware return %d\n", err);
 732	return err;
 733}
 734
 735static void
 736alloclbuspath(struct cmdif *cif, unsigned char source,
 737	      const unsigned char *path, unsigned char *mixer, unsigned char *s)
 738{
 739	while (*path != 0xff) {
 740		unsigned char sink, type;
 741
 742		sink = *path & (~SPLIT_PATH);
 743		if (sink != E2SINK_MAX) {
 744			dev_dbg(cif->dev, "alloc path 0x%x->0x%x\n", source, sink);
 745			SEND_PSEL(cif, source, sink);
 746			source = lbusin2out[sink][0];
 747			type = lbusin2out[sink][1];
 748			if (type == LS_MIXER_IN) {
 749				if (mixer)
 750					*mixer = sink - DIGITAL_MIXER_IN0;
 751			}
 752			if (type == LS_SRC_DECIMATORM ||
 753			    type == LS_SRC_DECIMATOR ||
 754			    type == LS_SRC_INTERPOLATORM ||
 755			    type == LS_SRC_INTERPOLATOR) {
 756				if (s) {
 757					if (s[0] != 0xff)
 758						s[1] = sink;
 759					else
 760						s[0] = sink;
 761				}
 762			}
 763		}
 764		if (*path++ & SPLIT_PATH) {
 765			const unsigned char *npath = path;
 766
 767			while (*npath != 0xff)
 768				npath++;
 769			alloclbuspath(cif, source + 1, ++npath, mixer, s);
 770		}
 771	}
 772}
 773
 774static void
 775freelbuspath(struct cmdif *cif, unsigned char source, const unsigned char *path)
 776{
 777	while (*path != 0xff) {
 778		unsigned char sink;
 779
 780		sink = *path & (~SPLIT_PATH);
 781		if (sink != E2SINK_MAX) {
 782			dev_dbg(cif->dev, "free path 0x%x->0x%x\n", source, sink);
 783			SEND_PCLR(cif, source, sink);
 784			source = lbusin2out[sink][0];
 785		}
 786		if (*path++ & SPLIT_PATH) {
 787			const unsigned char *npath = path;
 788
 789			while (*npath != 0xff)
 790				npath++;
 791			freelbuspath(cif, source + 1, ++npath);
 792		}
 793	}
 794}
 795
 796static int writearm(struct cmdif *cif, u32 addr, u32 data, u32 mask)
 797{
 798	union cmdret rptr = CMDRET_ZERO;
 799	unsigned int i = MAX_WRITE_RETRY;
 800	int flag = 1;
 801
 802	SEND_RMEM(cif, 0x02, addr, &rptr);
 803	rptr.retlongs[0] &= (~mask);
 804
 805	while (--i) {
 806		SEND_SMEM(cif, 0x01, addr);
 807		SEND_WMEM(cif, 0x02, (rptr.retlongs[0] | data));
 808		SEND_RMEM(cif, 0x02, addr, &rptr);
 809		if ((rptr.retlongs[0] & data) == data) {
 810			flag = 0;
 811			break;
 812		} else
 813			rptr.retlongs[0] &= ~mask;
 814	}
 815	dev_dbg(cif->dev, "send arm 0x%x 0x%x 0x%x return %d\n", addr, data, mask,
 816		flag);
 817	return flag;
 818}
 819
 820static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
 821		   union cmdret *ret)
 822{
 823	int i, j;
 824	int err;
 825	unsigned int time = 0;
 826	unsigned long irqflags;
 827	struct riptideport *hwport;
 828	struct cmdport *cmdport = NULL;
 829
 830	if (snd_BUG_ON(!cif))
 831		return -EINVAL;
 832
 833	hwport = cif->hwport;
 834	if (cif->errcnt > MAX_ERROR_COUNT) {
 835		if (cif->is_reset) {
 836			dev_err(cif->dev,
 837				"Riptide: Too many failed cmds, reinitializing\n");
 838			if (riptide_reset(cif, NULL) == 0) {
 839				cif->errcnt = 0;
 840				return -EIO;
 841			}
 842		}
 843		dev_err(cif->dev, "Riptide: Initialization failed.\n");
 844		return -EINVAL;
 845	}
 846	if (ret) {
 847		ret->retlongs[0] = 0;
 848		ret->retlongs[1] = 0;
 849	}
 850	i = 0;
 851	spin_lock_irqsave(&cif->lock, irqflags);
 852	while (i++ < CMDIF_TIMEOUT && !IS_READY(cif->hwport))
 853		udelay(10);
 854	if (i > CMDIF_TIMEOUT) {
 855		err = -EBUSY;
 856		goto errout;
 857	}
 858
 859	err = 0;
 860	for (j = 0, time = 0; time < CMDIF_TIMEOUT; j++, time += 2) {
 861		cmdport = &(hwport->port[j % 2]);
 862		if (IS_DATF(cmdport)) {	/* free pending data */
 863			READ_PORT_ULONG(cmdport->data1);
 864			READ_PORT_ULONG(cmdport->data2);
 865		}
 866		if (IS_CMDE(cmdport)) {
 867			if (flags & PARM)	/* put data */
 868				WRITE_PORT_ULONG(cmdport->data2, parm);
 869			WRITE_PORT_ULONG(cmdport->data1, cmd);	/* write cmd */
 870			if ((flags & RESP) && ret) {
 871				while (!IS_DATF(cmdport) &&
 872				       time < CMDIF_TIMEOUT) {
 873					udelay(10);
 874					time++;
 875				}
 876				if (time < CMDIF_TIMEOUT) {	/* read response */
 877					ret->retlongs[0] =
 878					    READ_PORT_ULONG(cmdport->data1);
 879					ret->retlongs[1] =
 880					    READ_PORT_ULONG(cmdport->data2);
 881				} else {
 882					err = -ENOSYS;
 883					goto errout;
 884				}
 885			}
 886			break;
 887		}
 888		udelay(20);
 889	}
 890	if (time == CMDIF_TIMEOUT) {
 891		err = -ENODATA;
 892		goto errout;
 893	}
 894	spin_unlock_irqrestore(&cif->lock, irqflags);
 895
 896	cif->cmdcnt++;		/* update command statistics */
 897	cif->cmdtime += time;
 898	if (time > cif->cmdtimemax)
 899		cif->cmdtimemax = time;
 900	if (time < cif->cmdtimemin)
 901		cif->cmdtimemin = time;
 902	if ((cif->cmdcnt) % 1000 == 0)
 903		dev_dbg(cif->dev,
 904			"send cmd %d time: %d mintime: %d maxtime %d err: %d\n",
 905			cif->cmdcnt, cif->cmdtime, cif->cmdtimemin,
 906			cif->cmdtimemax, cif->errcnt);
 907	return 0;
 908
 909      errout:
 910	cif->errcnt++;
 911	spin_unlock_irqrestore(&cif->lock, irqflags);
 912	dev_dbg(cif->dev,
 913		"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",
 914		cif->cmdcnt, (int)((void *)&(cmdport->stat) - (void *)hwport),
 915		flags, cmd, parm, ret ? ret->retlongs[0] : 0,
 916		ret ? ret->retlongs[1] : 0, IS_CMDE(cmdport), IS_DATF(cmdport),
 917		err);
 918	return err;
 919}
 920
 921static int
 922setmixer(struct cmdif *cif, short num, unsigned short rval, unsigned short lval)
 923{
 924	union cmdret rptr = CMDRET_ZERO;
 925	int i = 0;
 926
 927	dev_dbg(cif->dev, "sent mixer %d: 0x%x 0x%x\n", num, rval, lval);
 928	do {
 929		SEND_SDGV(cif, num, num, rval, lval);
 930		SEND_RDGV(cif, num, num, &rptr);
 931		if (rptr.retwords[0] == lval && rptr.retwords[1] == rval)
 932			return 0;
 933	} while (i++ < MAX_WRITE_RETRY);
 934	dev_dbg(cif->dev, "sent mixer failed\n");
 935	return -EIO;
 936}
 937
 938static int getpaths(struct cmdif *cif, unsigned char *o)
 939{
 940	unsigned char src[E2SINK_MAX];
 941	unsigned char sink[E2SINK_MAX];
 942	int i, j = 0;
 943
 944	for (i = 0; i < E2SINK_MAX; i++) {
 945		getsourcesink(cif, i, i, &src[i], &sink[i]);
 946		if (sink[i] < E2SINK_MAX) {
 947			o[j++] = sink[i];
 948			o[j++] = i;
 949		}
 950	}
 951	return j;
 952}
 953
 954static int
 955getsourcesink(struct cmdif *cif, unsigned char source, unsigned char sink,
 956	      unsigned char *a, unsigned char *b)
 957{
 958	union cmdret rptr = CMDRET_ZERO;
 959
 960	if (SEND_RSSV(cif, source, sink, &rptr) &&
 961	    SEND_RSSV(cif, source, sink, &rptr))
 962		return -EIO;
 963	*a = rptr.retbytes[0];
 964	*b = rptr.retbytes[1];
 965	dev_dbg(cif->dev, "%s 0x%x 0x%x\n", __func__, *a, *b);
 966	return 0;
 967}
 968
 969static int
 970getsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int *rate)
 971{
 972	unsigned char *s;
 973	unsigned int p[2] = { 0, 0 };
 974	int i;
 975	union cmdret rptr = CMDRET_ZERO;
 976
 977	s = intdec;
 978	for (i = 0; i < 2; i++) {
 979		if (*s != 0xff) {
 980			if (SEND_RSRC(cif, *s, &rptr) &&
 981			    SEND_RSRC(cif, *s, &rptr))
 982				return -EIO;
 983			p[i] += rptr.retwords[1];
 984			p[i] *= rptr.retwords[2];
 985			p[i] += rptr.retwords[3];
 986			p[i] /= 65536;
 987		}
 988		s++;
 989	}
 990	if (p[0]) {
 991		if (p[1] != p[0])
 992			dev_dbg(cif->dev, "rates differ %d %d\n", p[0], p[1]);
 993		*rate = (unsigned int)p[0];
 994	} else
 995		*rate = (unsigned int)p[1];
 996	dev_dbg(cif->dev, "getsampleformat %d %d %d\n", intdec[0], intdec[1], *rate);
 997	return 0;
 998}
 999
1000static int
1001setsampleformat(struct cmdif *cif,
1002		unsigned char mixer, unsigned char id,
1003		unsigned char channels, snd_pcm_format_t format)
1004{
1005	unsigned char w, ch, sig, order;
1006
1007	dev_dbg(cif->dev,
1008		"%s mixer: %d id: %d channels: %d format: %d\n",
1009		__func__, mixer, id, channels, format);
1010	ch = channels == 1;
1011	w = snd_pcm_format_width(format) == 8;
1012	sig = snd_pcm_format_unsigned(format) != 0;
1013	order = snd_pcm_format_big_endian(format) != 0;
1014
1015	if (SEND_SETF(cif, mixer, w, ch, order, sig, id) &&
1016	    SEND_SETF(cif, mixer, w, ch, order, sig, id)) {
1017		dev_dbg(cif->dev, "%s failed\n", __func__);
1018		return -EIO;
1019	}
1020	return 0;
1021}
1022
1023static int
1024setsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int rate)
1025{
1026	u32 D, M, N;
1027	union cmdret rptr = CMDRET_ZERO;
1028	int i;
1029
1030	dev_dbg(cif->dev, "%s intdec: %d,%d rate: %d\n", __func__,
1031		intdec[0], intdec[1], rate);
1032	D = 48000;
1033	M = ((rate == 48000) ? 47999 : rate) * 65536;
1034	N = M % D;
1035	M /= D;
1036	for (i = 0; i < 2; i++) {
1037		if (*intdec != 0xff) {
1038			do {
1039				SEND_SSRC(cif, *intdec, D, M, N);
1040				SEND_RSRC(cif, *intdec, &rptr);
1041			} while (rptr.retwords[1] != D &&
1042				 rptr.retwords[2] != M &&
1043				 rptr.retwords[3] != N &&
1044				 i++ < MAX_WRITE_RETRY);
1045			if (i > MAX_WRITE_RETRY) {
1046				dev_dbg(cif->dev, "sent samplerate %d: %d failed\n",
1047					*intdec, rate);
1048				return -EIO;
1049			}
1050		}
1051		intdec++;
1052	}
1053	return 0;
1054}
1055
1056static int
1057getmixer(struct cmdif *cif, short num, unsigned short *rval,
1058	 unsigned short *lval)
1059{
1060	union cmdret rptr = CMDRET_ZERO;
1061
1062	if (SEND_RDGV(cif, num, num, &rptr) && SEND_RDGV(cif, num, num, &rptr))
1063		return -EIO;
1064	*rval = rptr.retwords[0];
1065	*lval = rptr.retwords[1];
1066	dev_dbg(cif->dev, "got mixer %d: 0x%x 0x%x\n", num, *rval, *lval);
1067	return 0;
1068}
1069
1070static irqreturn_t riptide_handleirq(int irq, void *dev_id)
1071{
1072	struct snd_riptide *chip = dev_id;
1073	struct cmdif *cif = chip->cif;
1074	struct snd_pcm_substream *substream[PLAYBACK_SUBSTREAMS + 1];
1075	struct snd_pcm_runtime *runtime;
1076	struct pcmhw *data = NULL;
1077	unsigned int pos, period_bytes;
1078	struct sgd *c;
1079	int i, j;
1080	unsigned int flag;
1081
1082	if (!cif)
1083		return IRQ_HANDLED;
1084
1085	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++)
1086		substream[i] = chip->playback_substream[i];
1087	substream[i] = chip->capture_substream;
1088	for (i = 0; i < PLAYBACK_SUBSTREAMS + 1; i++) {
1089		if (!substream[i])
1090			continue;
1091		runtime = substream[i]->runtime;
1092		if (!runtime)
1093			continue;
1094		data = runtime->private_data;
1095		if (!data)
1096			continue;
1097		if (data->state != ST_STOP) {
1098			pos = 0;
1099			for (j = 0; j < data->pages; j++) {
1100				c = &data->sgdbuf[j];
1101				flag = le32_to_cpu(c->dwStat_Ctl);
1102				if (flag & EOB_STATUS)
1103					pos += le32_to_cpu(c->dwSegLen);
1104				if (flag & EOC_STATUS)
1105					pos += le32_to_cpu(c->dwSegLen);
1106				if ((flag & EOS_STATUS)
1107				    && (data->state == ST_PLAY)) {
1108					data->state = ST_STOP;
1109					dev_err(cif->dev,
1110						"Riptide: DMA stopped unexpectedly\n");
1111				}
1112				c->dwStat_Ctl =
1113				    cpu_to_le32(flag &
1114						~(EOS_STATUS | EOB_STATUS |
1115						  EOC_STATUS));
1116			}
1117			data->pointer += pos;
1118			pos += data->oldpos;
1119			if (data->state != ST_STOP) {
1120				period_bytes =
1121				    frames_to_bytes(runtime,
1122						    runtime->period_size);
1123				dev_dbg(cif->dev,
1124					"interrupt 0x%x after 0x%lx of 0x%lx frames in period\n",
1125					READ_AUDIO_STATUS(cif->hwport),
1126					bytes_to_frames(runtime, pos),
1127					runtime->period_size);
1128				j = 0;
1129				if (pos >= period_bytes) {
1130					j++;
1131					while (pos >= period_bytes)
1132						pos -= period_bytes;
1133				}
1134				data->oldpos = pos;
1135				if (j > 0)
1136					snd_pcm_period_elapsed(substream[i]);
1137			}
1138		}
1139	}
1140
1141	return IRQ_HANDLED;
1142}
1143
1144static int riptide_suspend(struct device *dev)
1145{
1146	struct snd_card *card = dev_get_drvdata(dev);
1147	struct snd_riptide *chip = card->private_data;
1148
1149	chip->in_suspend = 1;
1150	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
1151	snd_ac97_suspend(chip->ac97);
1152	return 0;
1153}
1154
1155static int riptide_resume(struct device *dev)
1156{
1157	struct snd_card *card = dev_get_drvdata(dev);
1158	struct snd_riptide *chip = card->private_data;
1159
1160	snd_riptide_initialize(chip);
1161	snd_ac97_resume(chip->ac97);
1162	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
1163	chip->in_suspend = 0;
1164	return 0;
1165}
1166
1167static DEFINE_SIMPLE_DEV_PM_OPS(riptide_pm, riptide_suspend, riptide_resume);
1168
1169static int try_to_load_firmware(struct cmdif *cif, struct snd_riptide *chip)
1170{
1171	union firmware_version firmware = { .ret = CMDRET_ZERO };
1172	int i, timeout, err;
1173
1174	for (i = 0; i < 2; i++) {
1175		WRITE_PORT_ULONG(cif->hwport->port[i].data1, 0);
1176		WRITE_PORT_ULONG(cif->hwport->port[i].data2, 0);
1177	}
1178	SET_GRESET(cif->hwport);
1179	udelay(100);
1180	UNSET_GRESET(cif->hwport);
1181	udelay(100);
1182
1183	for (timeout = 100000; --timeout; udelay(10)) {
1184		if (IS_READY(cif->hwport) && !IS_GERR(cif->hwport))
1185			break;
1186	}
1187	if (!timeout) {
1188		dev_err(cif->dev,
1189			"Riptide: device not ready, audio status: 0x%x ready: %d gerr: %d\n",
1190			READ_AUDIO_STATUS(cif->hwport),
1191			IS_READY(cif->hwport), IS_GERR(cif->hwport));
1192		return -EIO;
1193	} else {
1194		dev_dbg(cif->dev,
1195			"Riptide: audio status: 0x%x ready: %d gerr: %d\n",
1196			READ_AUDIO_STATUS(cif->hwport),
1197			IS_READY(cif->hwport), IS_GERR(cif->hwport));
1198	}
1199
1200	SEND_GETV(cif, &firmware.ret);
1201	dev_dbg(cif->dev,
1202		"Firmware version: ASIC: %d CODEC %d AUXDSP %d PROG %d\n",
1203		firmware.firmware.ASIC, firmware.firmware.CODEC,
1204		firmware.firmware.AUXDSP, firmware.firmware.PROG);
1205
1206	if (!chip)
1207		return 1;
1208
1209	for (i = 0; i < FIRMWARE_VERSIONS; i++) {
1210		if (!memcmp(&firmware_versions[i], &firmware, sizeof(firmware)))
1211			return 1; /* OK */
1212
1213	}
1214
1215	dev_dbg(cif->dev, "Writing Firmware\n");
1216	if (!chip->fw_entry) {
1217		err = request_firmware(&chip->fw_entry, "riptide.hex",
1218				       &chip->pci->dev);
1219		if (err) {
1220			dev_err(cif->dev,
1221				"Riptide: Firmware not available %d\n", err);
1222			return -EIO;
1223		}
1224	}
1225	err = loadfirmware(cif, chip->fw_entry->data, chip->fw_entry->size);
1226	if (err) {
1227		dev_err(cif->dev,
1228			"Riptide: Could not load firmware %d\n", err);
1229		return err;
1230	}
1231
1232	chip->firmware = firmware;
1233
1234	return 1; /* OK */
1235}
1236
1237static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip)
1238{
1239	union cmdret rptr = CMDRET_ZERO;
1240	int err, tries;
1241
1242	if (!cif)
1243		return -EINVAL;
1244
1245	cif->cmdcnt = 0;
1246	cif->cmdtime = 0;
1247	cif->cmdtimemax = 0;
1248	cif->cmdtimemin = 0xffffffff;
1249	cif->errcnt = 0;
1250	cif->is_reset = 0;
1251
1252	tries = RESET_TRIES;
1253	do {
1254		err = try_to_load_firmware(cif, chip);
1255		if (err < 0)
1256			return err;
1257	} while (!err && --tries);
1258
1259	SEND_SACR(cif, 0, AC97_RESET);
1260	SEND_RACR(cif, AC97_RESET, &rptr);
1261	dev_dbg(cif->dev, "AC97: 0x%x 0x%x\n", rptr.retlongs[0], rptr.retlongs[1]);
1262
1263	SEND_PLST(cif, 0);
1264	SEND_SLST(cif, 0);
1265	SEND_DLST(cif, 0);
1266	SEND_ALST(cif, 0);
1267	SEND_KDMA(cif);
1268
1269	writearm(cif, 0x301F8, 1, 1);
1270	writearm(cif, 0x301F4, 1, 1);
1271
1272	SEND_LSEL(cif, MODEM_CMD, 0, 0, MODEM_INTDEC, MODEM_MERGER,
1273		  MODEM_SPLITTER, MODEM_MIXER);
1274	setmixer(cif, MODEM_MIXER, 0x7fff, 0x7fff);
1275	alloclbuspath(cif, ARM2LBUS_FIFO13, lbus_play_modem, NULL, NULL);
1276
1277	SEND_LSEL(cif, FM_CMD, 0, 0, FM_INTDEC, FM_MERGER, FM_SPLITTER,
1278		  FM_MIXER);
1279	setmixer(cif, FM_MIXER, 0x7fff, 0x7fff);
1280	writearm(cif, 0x30648 + FM_MIXER * 4, 0x01, 0x00000005);
1281	writearm(cif, 0x301A8, 0x02, 0x00000002);
1282	writearm(cif, 0x30264, 0x08, 0xffffffff);
1283	alloclbuspath(cif, OPL3_SAMPLE, lbus_play_opl3, NULL, NULL);
1284
1285	SEND_SSRC(cif, I2S_INTDEC, 48000,
1286		  ((u32) I2S_RATE * 65536) / 48000,
1287		  ((u32) I2S_RATE * 65536) % 48000);
1288	SEND_LSEL(cif, I2S_CMD0, 0, 0, I2S_INTDEC, I2S_MERGER, I2S_SPLITTER,
1289		  I2S_MIXER);
1290	SEND_SI2S(cif, 1);
1291	alloclbuspath(cif, ARM2LBUS_FIFO0, lbus_play_i2s, NULL, NULL);
1292	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_out, NULL, NULL);
1293	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_outhp, NULL, NULL);
1294
1295	SET_AIACK(cif->hwport);
1296	SET_AIE(cif->hwport);
1297	SET_AIACK(cif->hwport);
1298	cif->is_reset = 1;
1299
1300	return 0;
1301}
1302
1303static const struct snd_pcm_hardware snd_riptide_playback = {
1304	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1305		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1306		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1307	.formats =
1308	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1309	    | SNDRV_PCM_FMTBIT_U16_LE,
1310	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1311	.rate_min = 5500,
1312	.rate_max = 48000,
1313	.channels_min = 1,
1314	.channels_max = 2,
1315	.buffer_bytes_max = (64 * 1024),
1316	.period_bytes_min = PAGE_SIZE >> 1,
1317	.period_bytes_max = PAGE_SIZE << 8,
1318	.periods_min = 2,
1319	.periods_max = 64,
1320	.fifo_size = 0,
1321};
1322static const struct snd_pcm_hardware snd_riptide_capture = {
1323	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
1324		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
1325		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
1326	.formats =
1327	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
1328	    | SNDRV_PCM_FMTBIT_U16_LE,
1329	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
1330	.rate_min = 5500,
1331	.rate_max = 48000,
1332	.channels_min = 1,
1333	.channels_max = 2,
1334	.buffer_bytes_max = (64 * 1024),
1335	.period_bytes_min = PAGE_SIZE >> 1,
1336	.period_bytes_max = PAGE_SIZE << 3,
1337	.periods_min = 2,
1338	.periods_max = 64,
1339	.fifo_size = 0,
1340};
1341
1342static snd_pcm_uframes_t snd_riptide_pointer(struct snd_pcm_substream
1343					     *substream)
1344{
1345	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1346	struct snd_pcm_runtime *runtime = substream->runtime;
1347	struct pcmhw *data = get_pcmhwdev(substream);
1348	struct cmdif *cif = chip->cif;
1349	union cmdret rptr = CMDRET_ZERO;
1350	snd_pcm_uframes_t ret;
1351
1352	SEND_GPOS(cif, 0, data->id, &rptr);
1353	if (data->size && runtime->period_size) {
1354		dev_dbg(cif->dev,
1355			"pointer stream %d position 0x%x(0x%x in buffer) bytes 0x%lx(0x%lx in period) frames\n",
1356			data->id, rptr.retlongs[1], rptr.retlongs[1] % data->size,
1357			bytes_to_frames(runtime, rptr.retlongs[1]),
1358			bytes_to_frames(runtime,
1359				     rptr.retlongs[1]) % runtime->period_size);
1360		if (rptr.retlongs[1] > data->pointer)
1361			ret =
1362			    bytes_to_frames(runtime,
1363					    rptr.retlongs[1] % data->size);
1364		else
1365			ret =
1366			    bytes_to_frames(runtime,
1367					    data->pointer % data->size);
1368	} else {
1369		dev_dbg(cif->dev,
1370			"stream not started or strange parms (%d %ld)\n",
1371			data->size, runtime->period_size);
1372		ret = bytes_to_frames(runtime, 0);
1373	}
1374	return ret;
1375}
1376
1377static int snd_riptide_trigger(struct snd_pcm_substream *substream, int cmd)
1378{
1379	int i, j;
1380	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1381	struct pcmhw *data = get_pcmhwdev(substream);
1382	struct cmdif *cif = chip->cif;
1383	union cmdret rptr = CMDRET_ZERO;
1384
1385	spin_lock(&chip->lock);
1386	switch (cmd) {
1387	case SNDRV_PCM_TRIGGER_START:
1388	case SNDRV_PCM_TRIGGER_RESUME:
1389		if (!(data->state & ST_PLAY)) {
1390			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1391			SET_AIE(cif->hwport);
1392			data->state = ST_PLAY;
1393			if (data->mixer != 0xff)
1394				setmixer(cif, data->mixer, 0x7fff, 0x7fff);
1395			chip->openstreams++;
1396			data->oldpos = 0;
1397			data->pointer = 0;
1398		}
1399		break;
1400	case SNDRV_PCM_TRIGGER_STOP:
1401	case SNDRV_PCM_TRIGGER_SUSPEND:
1402		if (data->mixer != 0xff)
1403			setmixer(cif, data->mixer, 0, 0);
1404		setmixer(cif, data->mixer, 0, 0);
1405		SEND_KSTR(cif, data->id);
1406		data->state = ST_STOP;
1407		chip->openstreams--;
1408		j = 0;
1409		do {
1410			i = rptr.retlongs[1];
1411			SEND_GPOS(cif, 0, data->id, &rptr);
1412			udelay(1);
1413		} while (i != rptr.retlongs[1] && j++ < MAX_WRITE_RETRY);
1414		if (j > MAX_WRITE_RETRY)
1415			dev_err(cif->dev, "Riptide: Could not stop stream!");
1416		break;
1417	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
1418		if (!(data->state & ST_PAUSE)) {
1419			SEND_PSTR(cif, data->id);
1420			data->state |= ST_PAUSE;
1421			chip->openstreams--;
1422		}
1423		break;
1424	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
1425		if (data->state & ST_PAUSE) {
1426			SEND_SSTR(cif, data->id, data->sgdlist.addr);
1427			data->state &= ~ST_PAUSE;
1428			chip->openstreams++;
1429		}
1430		break;
1431	default:
1432		spin_unlock(&chip->lock);
1433		return -EINVAL;
1434	}
1435	spin_unlock(&chip->lock);
1436	return 0;
1437}
1438
1439static int snd_riptide_prepare(struct snd_pcm_substream *substream)
1440{
1441	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1442	struct snd_pcm_runtime *runtime = substream->runtime;
1443	struct pcmhw *data = get_pcmhwdev(substream);
1444	struct cmdif *cif = chip->cif;
1445	const unsigned char *lbuspath = NULL;
1446	unsigned int rate, channels;
1447	int err = 0;
1448	snd_pcm_format_t format;
1449
1450	if (snd_BUG_ON(!cif || !data))
1451		return -EINVAL;
1452
1453	dev_dbg(cif->dev, "prepare id %d ch: %d f:0x%x r:%d\n", data->id,
1454		runtime->channels, runtime->format, runtime->rate);
1455
1456	spin_lock_irq(&chip->lock);
1457	channels = runtime->channels;
1458	format = runtime->format;
1459	rate = runtime->rate;
1460	switch (channels) {
1461	case 1:
1462		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1463			lbuspath = data->paths.noconv;
1464		else
1465			lbuspath = data->paths.mono;
1466		break;
1467	case 2:
1468		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
1469			lbuspath = data->paths.noconv;
1470		else
1471			lbuspath = data->paths.stereo;
1472		break;
1473	}
1474	dev_dbg(cif->dev, "use sgdlist at 0x%p\n", data->sgdlist.area);
1475	if (data->sgdlist.area) {
1476		unsigned int i, j, size, pages, f, pt, period;
1477		struct sgd *c, *p = NULL;
1478
1479		size = frames_to_bytes(runtime, runtime->buffer_size);
1480		period = frames_to_bytes(runtime, runtime->period_size);
1481		f = PAGE_SIZE;
1482		while ((size + (f >> 1) - 1) <= (f << 7) && (f << 1) > period)
1483			f = f >> 1;
1484		pages = DIV_ROUND_UP(size, f);
1485		data->size = size;
1486		data->pages = pages;
1487		dev_dbg(cif->dev,
1488			"create sgd size: 0x%x pages %d of size 0x%x for period 0x%x\n",
1489			size, pages, f, period);
1490		pt = 0;
1491		j = 0;
1492		for (i = 0; i < pages; i++) {
1493			unsigned int ofs, addr;
1494			c = &data->sgdbuf[i];
1495			if (p)
1496				p->dwNextLink = cpu_to_le32(data->sgdlist.addr +
1497							    (i *
1498							     sizeof(struct
1499								    sgd)));
1500			c->dwNextLink = cpu_to_le32(data->sgdlist.addr);
1501			ofs = j << PAGE_SHIFT;
1502			addr = snd_pcm_sgbuf_get_addr(substream, ofs) + pt;
1503			c->dwSegPtrPhys = cpu_to_le32(addr);
1504			pt = (pt + f) % PAGE_SIZE;
1505			if (pt == 0)
1506				j++;
1507			c->dwSegLen = cpu_to_le32(f);
1508			c->dwStat_Ctl =
1509			    cpu_to_le32(IEOB_ENABLE | IEOS_ENABLE |
1510					IEOC_ENABLE);
1511			p = c;
1512			size -= f;
1513		}
1514		data->sgdbuf[i].dwSegLen = cpu_to_le32(size);
1515	}
1516	if (lbuspath && lbuspath != data->lbuspath) {
1517		if (data->lbuspath)
1518			freelbuspath(cif, data->source, data->lbuspath);
1519		alloclbuspath(cif, data->source, lbuspath,
1520			      &data->mixer, data->intdec);
1521		data->lbuspath = lbuspath;
1522		data->rate = 0;
1523	}
1524	if (data->rate != rate || data->format != format ||
1525	    data->channels != channels) {
1526		data->rate = rate;
1527		data->format = format;
1528		data->channels = channels;
1529		if (setsampleformat
1530		    (cif, data->mixer, data->id, channels, format)
1531		    || setsamplerate(cif, data->intdec, rate))
1532			err = -EIO;
1533	}
1534	spin_unlock_irq(&chip->lock);
1535	return err;
1536}
1537
1538static int
1539snd_riptide_hw_params(struct snd_pcm_substream *substream,
1540		      struct snd_pcm_hw_params *hw_params)
1541{
1542	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1543	struct pcmhw *data = get_pcmhwdev(substream);
1544	struct snd_dma_buffer *sgdlist = &data->sgdlist;
1545	int err;
1546
1547	dev_dbg(chip->card->dev, "hw params id %d (sgdlist: 0x%p 0x%lx %d)\n",
1548		data->id, sgdlist->area, (unsigned long)sgdlist->addr,
1549		(int)sgdlist->bytes);
1550	if (sgdlist->area)
1551		snd_dma_free_pages(sgdlist);
1552	err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, &chip->pci->dev,
1553				  sizeof(struct sgd) * (DESC_MAX_MASK + 1),
1554				  sgdlist);
1555	if (err < 0) {
1556		dev_err(chip->card->dev,
1557			"Riptide: failed to alloc %d dma bytes\n",
1558			(int)sizeof(struct sgd) * (DESC_MAX_MASK + 1));
1559		return err;
1560	}
1561	data->sgdbuf = (struct sgd *)sgdlist->area;
1562	return 0;
1563}
1564
1565static int snd_riptide_hw_free(struct snd_pcm_substream *substream)
1566{
1567	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1568	struct pcmhw *data = get_pcmhwdev(substream);
1569	struct cmdif *cif = chip->cif;
1570
1571	if (cif && data) {
1572		if (data->lbuspath)
1573			freelbuspath(cif, data->source, data->lbuspath);
1574		data->lbuspath = NULL;
1575		data->source = 0xff;
1576		data->intdec[0] = 0xff;
1577		data->intdec[1] = 0xff;
1578
1579		if (data->sgdlist.area) {
1580			snd_dma_free_pages(&data->sgdlist);
1581			data->sgdlist.area = NULL;
1582		}
1583	}
1584	return 0;
1585}
1586
1587static int snd_riptide_playback_open(struct snd_pcm_substream *substream)
1588{
1589	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1590	struct snd_pcm_runtime *runtime = substream->runtime;
1591	struct pcmhw *data;
1592	int sub_num = substream->number;
1593
1594	chip->playback_substream[sub_num] = substream;
1595	runtime->hw = snd_riptide_playback;
1596
1597	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
1598	if (data == NULL)
1599		return -ENOMEM;
1600	data->paths = lbus_play_paths[sub_num];
1601	data->id = play_ids[sub_num];
1602	data->source = play_sources[sub_num];
1603	data->intdec[0] = 0xff;
1604	data->intdec[1] = 0xff;
1605	data->state = ST_STOP;
1606	runtime->private_data = data;
1607	return snd_pcm_hw_constraint_integer(runtime,
1608					     SNDRV_PCM_HW_PARAM_PERIODS);
1609}
1610
1611static int snd_riptide_capture_open(struct snd_pcm_substream *substream)
1612{
1613	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1614	struct snd_pcm_runtime *runtime = substream->runtime;
1615	struct pcmhw *data;
1616
1617	chip->capture_substream = substream;
1618	runtime->hw = snd_riptide_capture;
1619
1620	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
1621	if (data == NULL)
1622		return -ENOMEM;
1623	data->paths = lbus_rec_path;
1624	data->id = PADC;
1625	data->source = ACLNK2PADC;
1626	data->intdec[0] = 0xff;
1627	data->intdec[1] = 0xff;
1628	data->state = ST_STOP;
1629	runtime->private_data = data;
1630	return snd_pcm_hw_constraint_integer(runtime,
1631					     SNDRV_PCM_HW_PARAM_PERIODS);
1632}
1633
1634static int snd_riptide_playback_close(struct snd_pcm_substream *substream)
1635{
1636	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1637	struct pcmhw *data = get_pcmhwdev(substream);
1638	int sub_num = substream->number;
1639
1640	substream->runtime->private_data = NULL;
1641	chip->playback_substream[sub_num] = NULL;
1642	kfree(data);
1643	return 0;
1644}
1645
1646static int snd_riptide_capture_close(struct snd_pcm_substream *substream)
1647{
1648	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
1649	struct pcmhw *data = get_pcmhwdev(substream);
1650
1651	substream->runtime->private_data = NULL;
1652	chip->capture_substream = NULL;
1653	kfree(data);
1654	return 0;
1655}
1656
1657static const struct snd_pcm_ops snd_riptide_playback_ops = {
1658	.open = snd_riptide_playback_open,
1659	.close = snd_riptide_playback_close,
1660	.hw_params = snd_riptide_hw_params,
1661	.hw_free = snd_riptide_hw_free,
1662	.prepare = snd_riptide_prepare,
1663	.trigger = snd_riptide_trigger,
1664	.pointer = snd_riptide_pointer,
1665};
1666static const struct snd_pcm_ops snd_riptide_capture_ops = {
1667	.open = snd_riptide_capture_open,
1668	.close = snd_riptide_capture_close,
1669	.hw_params = snd_riptide_hw_params,
1670	.hw_free = snd_riptide_hw_free,
1671	.prepare = snd_riptide_prepare,
1672	.trigger = snd_riptide_trigger,
1673	.pointer = snd_riptide_pointer,
1674};
1675
1676static int snd_riptide_pcm(struct snd_riptide *chip, int device)
1677{
1678	struct snd_pcm *pcm;
1679	int err;
1680
1681	err = snd_pcm_new(chip->card, "RIPTIDE", device, PLAYBACK_SUBSTREAMS, 1,
1682			  &pcm);
1683	if (err < 0)
1684		return err;
1685	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
1686			&snd_riptide_playback_ops);
1687	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
1688			&snd_riptide_capture_ops);
1689	pcm->private_data = chip;
1690	pcm->info_flags = 0;
1691	strscpy(pcm->name, "RIPTIDE");
1692	chip->pcm = pcm;
1693	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
1694				       &chip->pci->dev, 64 * 1024, 128 * 1024);
1695	return 0;
1696}
1697
1698static irqreturn_t
1699snd_riptide_interrupt(int irq, void *dev_id)
1700{
1701	struct snd_riptide *chip = dev_id;
1702	struct cmdif *cif = chip->cif;
1703	irqreturn_t ret = IRQ_HANDLED;
1704
1705	if (cif) {
1706		chip->received_irqs++;
1707		if (IS_EOBIRQ(cif->hwport) || IS_EOSIRQ(cif->hwport) ||
1708		    IS_EOCIRQ(cif->hwport)) {
1709			chip->handled_irqs++;
1710			ret = IRQ_WAKE_THREAD;
1711		}
1712		if (chip->rmidi && IS_MPUIRQ(cif->hwport)) {
1713			chip->handled_irqs++;
1714			snd_mpu401_uart_interrupt(irq,
1715						  chip->rmidi->private_data);
1716		}
1717		SET_AIACK(cif->hwport);
1718	}
1719	return ret;
1720}
1721
1722static void
1723snd_riptide_codec_write(struct snd_ac97 *ac97, unsigned short reg,
1724			unsigned short val)
1725{
1726	struct snd_riptide *chip = ac97->private_data;
1727	struct cmdif *cif = chip->cif;
1728	union cmdret rptr = CMDRET_ZERO;
1729	int i = 0;
1730
1731	if (snd_BUG_ON(!cif))
1732		return;
1733
1734	dev_dbg(cif->dev, "Write AC97 reg 0x%x 0x%x\n", reg, val);
1735	do {
1736		SEND_SACR(cif, val, reg);
1737		SEND_RACR(cif, reg, &rptr);
1738	} while (rptr.retwords[1] != val && i++ < MAX_WRITE_RETRY);
1739	if (i > MAX_WRITE_RETRY)
1740		dev_dbg(cif->dev, "Write AC97 reg failed\n");
1741}
1742
1743static unsigned short snd_riptide_codec_read(struct snd_ac97 *ac97,
1744					     unsigned short reg)
1745{
1746	struct snd_riptide *chip = ac97->private_data;
1747	struct cmdif *cif = chip->cif;
1748	union cmdret rptr = CMDRET_ZERO;
1749
1750	if (snd_BUG_ON(!cif))
1751		return 0;
1752
1753	if (SEND_RACR(cif, reg, &rptr) != 0)
1754		SEND_RACR(cif, reg, &rptr);
1755	dev_dbg(cif->dev, "Read AC97 reg 0x%x got 0x%x\n", reg, rptr.retwords[1]);
1756	return rptr.retwords[1];
1757}
1758
1759static int snd_riptide_initialize(struct snd_riptide *chip)
1760{
1761	struct cmdif *cif;
1762	unsigned int device_id;
1763	int err;
1764
1765	if (snd_BUG_ON(!chip))
1766		return -EINVAL;
1767
1768	cif = chip->cif;
1769	if (!cif) {
1770		cif = kzalloc(sizeof(struct cmdif), GFP_KERNEL);
1771		if (!cif)
1772			return -ENOMEM;
1773		cif->dev = chip->card->dev;
1774		cif->hwport = (struct riptideport *)chip->port;
1775		spin_lock_init(&cif->lock);
1776		chip->cif = cif;
1777	}
1778	cif->is_reset = 0;
1779	err = riptide_reset(cif, chip);
1780	if (err)
1781		return err;
1782	device_id = chip->device_id;
1783	switch (device_id) {
1784	case 0x4310:
1785	case 0x4320:
1786	case 0x4330:
1787		dev_dbg(cif->dev, "Modem enable?\n");
1788		SEND_SETDPLL(cif);
1789		break;
1790	}
1791	dev_dbg(cif->dev, "Enabling MPU IRQs\n");
1792	if (chip->rmidi)
1793		SET_EMPUIRQ(cif->hwport);
1794	return err;
1795}
1796
1797static void snd_riptide_free(struct snd_card *card)
1798{
1799	struct snd_riptide *chip = card->private_data;
1800	struct cmdif *cif;
1801
1802	cif = chip->cif;
1803	if (cif) {
1804		SET_GRESET(cif->hwport);
1805		udelay(100);
1806		UNSET_GRESET(cif->hwport);
1807		kfree(chip->cif);
1808	}
1809	release_firmware(chip->fw_entry);
1810}
1811
1812static int
1813snd_riptide_create(struct snd_card *card, struct pci_dev *pci)
1814{
1815	struct snd_riptide *chip = card->private_data;
1816	struct riptideport *hwport;
1817	int err;
1818
1819	err = pcim_enable_device(pci);
1820	if (err < 0)
1821		return err;
1822
1823	spin_lock_init(&chip->lock);
1824	chip->card = card;
1825	chip->pci = pci;
1826	chip->irq = -1;
1827	chip->openstreams = 0;
1828	chip->port = pci_resource_start(pci, 0);
1829	chip->received_irqs = 0;
1830	chip->handled_irqs = 0;
1831	chip->cif = NULL;
1832	card->private_free = snd_riptide_free;
1833
1834	err = pcim_request_all_regions(pci, "RIPTIDE");
1835	if (err < 0)
1836		return err;
1837	hwport = (struct riptideport *)chip->port;
1838	UNSET_AIE(hwport);
1839
1840	if (devm_request_threaded_irq(&pci->dev, pci->irq,
1841				      snd_riptide_interrupt,
1842				      riptide_handleirq, IRQF_SHARED,
1843				      KBUILD_MODNAME, chip)) {
1844		dev_err(&pci->dev, "Riptide: unable to grab IRQ %d\n",
1845			pci->irq);
1846		return -EBUSY;
1847	}
1848	chip->irq = pci->irq;
1849	card->sync_irq = chip->irq;
1850	chip->device_id = pci->device;
1851	pci_set_master(pci);
1852	err = snd_riptide_initialize(chip);
1853	if (err < 0)
1854		return err;
1855
1856	return 0;
1857}
1858
1859static void
1860snd_riptide_proc_read(struct snd_info_entry *entry,
1861		      struct snd_info_buffer *buffer)
1862{
1863	struct snd_riptide *chip = entry->private_data;
1864	struct pcmhw *data;
1865	int i;
1866	struct cmdif *cif = NULL;
1867	unsigned char p[256];
1868	unsigned short rval = 0, lval = 0;
1869	unsigned int rate;
1870
1871	if (!chip)
1872		return;
1873
1874	snd_iprintf(buffer, "%s\n\n", chip->card->longname);
1875	snd_iprintf(buffer, "Device ID: 0x%x\nReceived IRQs: (%ld)%ld\nPorts:",
1876		    chip->device_id, chip->handled_irqs, chip->received_irqs);
1877	for (i = 0; i < 64; i += 4)
1878		snd_iprintf(buffer, "%c%02x: %08x",
1879			    (i % 16) ? ' ' : '\n', i, inl(chip->port + i));
1880	cif = chip->cif;
1881	if (cif) {
1882		snd_iprintf(buffer,
1883			    "\nVersion: ASIC: %d CODEC: %d AUXDSP: %d PROG: %d",
1884			    chip->firmware.firmware.ASIC,
1885			    chip->firmware.firmware.CODEC,
1886			    chip->firmware.firmware.AUXDSP,
1887			    chip->firmware.firmware.PROG);
1888		snd_iprintf(buffer, "\nDigital mixer:");
1889		for (i = 0; i < 12; i++) {
1890			getmixer(cif, i, &rval, &lval);
1891			snd_iprintf(buffer, "\n %d: %d %d", i, rval, lval);
1892		}
1893		snd_iprintf(buffer,
1894			    "\nARM Commands num: %d failed: %d time: %d max: %d min: %d",
1895			    cif->cmdcnt, cif->errcnt,
1896			    cif->cmdtime, cif->cmdtimemax, cif->cmdtimemin);
1897	}
1898	snd_iprintf(buffer, "\nOpen streams %d:\n", chip->openstreams);
1899	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++) {
1900		if (!chip->playback_substream[i] ||
1901		    !chip->playback_substream[i]->runtime)
1902			continue;
1903		data = chip->playback_substream[i]->runtime->private_data;
1904		if (data) {
1905			snd_iprintf(buffer,
1906				    "stream: %d mixer: %d source: %d (%d,%d)\n",
1907				    data->id, data->mixer, data->source,
1908				    data->intdec[0], data->intdec[1]);
1909			if (!(getsamplerate(cif, data->intdec, &rate)))
1910				snd_iprintf(buffer, "rate: %d\n", rate);
1911		}
1912	}
1913	if (chip->capture_substream && chip->capture_substream->runtime) {
1914		data = chip->capture_substream->runtime->private_data;
1915		if (data) {
1916			snd_iprintf(buffer,
1917				    "stream: %d mixer: %d source: %d (%d,%d)\n",
1918				    data->id, data->mixer,
1919				    data->source, data->intdec[0], data->intdec[1]);
1920			if (!(getsamplerate(cif, data->intdec, &rate)))
1921				snd_iprintf(buffer, "rate: %d\n", rate);
1922		}
1923	}
1924	snd_iprintf(buffer, "Paths:\n");
1925	i = getpaths(cif, p);
1926	while (i >= 2) {
1927		i -= 2;
1928		snd_iprintf(buffer, "%x->%x ", p[i], p[i + 1]);
1929	}
1930	snd_iprintf(buffer, "\n");
1931}
1932
1933static void snd_riptide_proc_init(struct snd_riptide *chip)
1934{
1935	snd_card_ro_proc_new(chip->card, "riptide", chip,
1936			     snd_riptide_proc_read);
1937}
1938
1939static int snd_riptide_mixer(struct snd_riptide *chip)
1940{
1941	struct snd_ac97_bus *pbus;
1942	struct snd_ac97_template ac97;
1943	int err = 0;
1944	static const struct snd_ac97_bus_ops ops = {
1945		.write = snd_riptide_codec_write,
1946		.read = snd_riptide_codec_read,
1947	};
1948
1949	memset(&ac97, 0, sizeof(ac97));
1950	ac97.private_data = chip;
1951	ac97.scaps = AC97_SCAP_SKIP_MODEM;
1952
1953	err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus);
1954	if (err < 0)
1955		return err;
1956
1957	chip->ac97_bus = pbus;
1958	ac97.pci = chip->pci;
1959	err = snd_ac97_mixer(pbus, &ac97, &chip->ac97);
1960	if (err < 0)
1961		return err;
1962	return err;
1963}
1964
1965#ifdef SUPPORT_JOYSTICK
1966
1967static int
1968snd_riptide_joystick_probe(struct pci_dev *pci, const struct pci_device_id *id)
1969{
1970	static int dev;
1971	struct gameport *gameport;
1972	int ret;
1973
1974	if (dev >= SNDRV_CARDS)
1975		return -ENODEV;
1976
1977	if (!enable[dev]) {
1978		ret = -ENOENT;
1979		goto inc_dev;
1980	}
1981
1982	if (!joystick_port[dev]) {
1983		ret = 0;
1984		goto inc_dev;
1985	}
1986
1987	gameport = gameport_allocate_port();
1988	if (!gameport) {
1989		ret = -ENOMEM;
1990		goto inc_dev;
1991	}
1992	if (!request_region(joystick_port[dev], 8, "Riptide gameport")) {
1993		dev_err(&pci->dev,
1994			"Riptide: cannot grab gameport 0x%x\n",
1995			joystick_port[dev]);
1996		gameport_free_port(gameport);
1997		ret = -EBUSY;
1998		goto inc_dev;
1999	}
2000
2001	gameport->io = joystick_port[dev];
2002	gameport_register_port(gameport);
2003	pci_set_drvdata(pci, gameport);
2004
2005	ret = 0;
2006inc_dev:
2007	dev++;
2008	return ret;
2009}
2010
2011static void snd_riptide_joystick_remove(struct pci_dev *pci)
2012{
2013	struct gameport *gameport = pci_get_drvdata(pci);
2014	if (gameport) {
2015		release_region(gameport->io, 8);
2016		gameport_unregister_port(gameport);
2017	}
2018}
2019#endif
2020
2021static int
2022__snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2023{
2024	static int dev;
2025	struct snd_card *card;
2026	struct snd_riptide *chip;
2027	unsigned short val;
2028	int err;
2029
2030	if (dev >= SNDRV_CARDS)
2031		return -ENODEV;
2032	if (!enable[dev]) {
2033		dev++;
2034		return -ENOENT;
2035	}
2036
2037	err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
2038				sizeof(*chip), &card);
2039	if (err < 0)
2040		return err;
2041	chip = card->private_data;
2042	err = snd_riptide_create(card, pci);
2043	if (err < 0)
2044		return err;
2045	err = snd_riptide_pcm(chip, 0);
2046	if (err < 0)
2047		return err;
2048	err = snd_riptide_mixer(chip);
2049	if (err < 0)
2050		return err;
2051
2052	val = LEGACY_ENABLE_ALL;
2053	if (opl3_port[dev])
2054		val |= LEGACY_ENABLE_FM;
2055#ifdef SUPPORT_JOYSTICK
2056	if (joystick_port[dev])
2057		val |= LEGACY_ENABLE_GAMEPORT;
2058#endif
2059	if (mpu_port[dev])
2060		val |= LEGACY_ENABLE_MPU_INT | LEGACY_ENABLE_MPU;
2061	val |= (chip->irq << 4) & 0xf0;
2062	pci_write_config_word(chip->pci, PCI_EXT_Legacy_Mask, val);
2063	if (mpu_port[dev]) {
2064		val = mpu_port[dev];
2065		pci_write_config_word(chip->pci, PCI_EXT_MPU_Base, val);
2066		err = snd_mpu401_uart_new(card, 0, MPU401_HW_RIPTIDE,
2067					  val, MPU401_INFO_IRQ_HOOK, -1,
2068					  &chip->rmidi);
2069		if (err < 0)
2070			dev_warn(&pci->dev,
2071				 "Riptide: Can't Allocate MPU at 0x%x\n",
2072				 val);
2073		else
2074			chip->mpuaddr = val;
2075	}
2076	if (opl3_port[dev]) {
2077		val = opl3_port[dev];
2078		pci_write_config_word(chip->pci, PCI_EXT_FM_Base, val);
2079		err = snd_opl3_create(card, val, val + 2,
2080				      OPL3_HW_RIPTIDE, 0, &chip->opl3);
2081		if (err < 0)
2082			dev_warn(&pci->dev,
2083				 "Riptide: Can't Allocate OPL3 at 0x%x\n",
2084				 val);
2085		else {
2086			chip->opladdr = val;
2087			err = snd_opl3_hwdep_new(chip->opl3, 0, 1, NULL);
2088			if (err < 0)
2089				dev_warn(&pci->dev,
2090					 "Riptide: Can't Allocate OPL3-HWDEP\n");
2091		}
2092	}
2093#ifdef SUPPORT_JOYSTICK
2094	if (joystick_port[dev]) {
2095		val = joystick_port[dev];
2096		pci_write_config_word(chip->pci, PCI_EXT_Game_Base, val);
2097		chip->gameaddr = val;
2098	}
2099#endif
2100
2101	strscpy(card->driver, "RIPTIDE");
2102	strscpy(card->shortname, "Riptide");
2103#ifdef SUPPORT_JOYSTICK
2104	scnprintf(card->longname, sizeof(card->longname),
2105		  "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x gameport 0x%x",
2106		  card->shortname, chip->port, chip->irq, chip->mpuaddr,
2107		  chip->opladdr, chip->gameaddr);
2108#else
2109	scnprintf(card->longname, sizeof(card->longname),
2110		  "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x",
2111		  card->shortname, chip->port, chip->irq, chip->mpuaddr,
2112		  chip->opladdr);
2113#endif
2114	snd_riptide_proc_init(chip);
2115	err = snd_card_register(card);
2116	if (err < 0)
2117		return err;
2118	pci_set_drvdata(pci, card);
2119	dev++;
2120	return 0;
2121}
2122
2123static int
2124snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
2125{
2126	return snd_card_free_on_error(&pci->dev, __snd_card_riptide_probe(pci, pci_id));
2127}
2128
2129static struct pci_driver driver = {
2130	.name = KBUILD_MODNAME,
2131	.id_table = snd_riptide_ids,
2132	.probe = snd_card_riptide_probe,
2133	.driver = {
2134		.pm = &riptide_pm,
2135	},
2136};
2137
2138#ifdef SUPPORT_JOYSTICK
2139static struct pci_driver joystick_driver = {
2140	.name = KBUILD_MODNAME "-joystick",
2141	.id_table = snd_riptide_joystick_ids,
2142	.probe = snd_riptide_joystick_probe,
2143	.remove = snd_riptide_joystick_remove,
2144};
2145#endif
2146
2147static int __init alsa_card_riptide_init(void)
2148{
2149	int err;
2150	err = pci_register_driver(&driver);
2151	if (err < 0)
2152		return err;
2153#if defined(SUPPORT_JOYSTICK)
2154	err = pci_register_driver(&joystick_driver);
2155	/* On failure unregister formerly registered audio driver */
2156	if (err < 0)
2157		pci_unregister_driver(&driver);
2158#endif
2159	return err;
2160}
2161
2162static void __exit alsa_card_riptide_exit(void)
2163{
2164	pci_unregister_driver(&driver);
2165#if defined(SUPPORT_JOYSTICK)
2166	pci_unregister_driver(&joystick_driver);
2167#endif
2168}
2169
2170module_init(alsa_card_riptide_init);
2171module_exit(alsa_card_riptide_exit);
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