Adding upstream version 4.19.249.upstream/4.19.249

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2217 insertions, 0 deletions

diff --git a/sound/pci/riptide/riptide.c b/sound/pci/riptide/riptide.c
new file mode 100644
index 000000000..23017e3bc
--- /dev/null
+++ b/sound/pci/riptide/riptide.c
@@ -0,0 +1,2217 @@
+/*
+ *   Driver for the Conexant Riptide Soundchip
+ *
+ *	Copyright (c) 2004 Peter Gruber <nokos@gmx.net>
+ *
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+/*
+  History:
+   - 02/15/2004 first release
+   
+  This Driver is based on the OSS Driver version from Linuxant (riptide-0.6lnxtbeta03111100)
+  credits from the original files:
+  
+  MODULE NAME:        cnxt_rt.h                       
+  AUTHOR:             K. Lazarev  (Transcribed by KNL)
+  HISTORY:         Major Revision               Date        By
+            -----------------------------     --------     -----
+            Created                           02/1/2000     KNL
+
+  MODULE NAME:     int_mdl.c                       
+  AUTHOR:          Konstantin Lazarev    (Transcribed by KNL)
+  HISTORY:         Major Revision               Date        By
+            -----------------------------     --------     -----
+            Created                           10/01/99      KNL
+	    
+  MODULE NAME:        riptide.h                       
+  AUTHOR:             O. Druzhinin  (Transcribed by OLD)
+  HISTORY:         Major Revision               Date        By
+            -----------------------------     --------     -----
+            Created                           10/16/97      OLD
+
+  MODULE NAME:        Rp_Cmdif.cpp                       
+  AUTHOR:             O. Druzhinin  (Transcribed by OLD)
+                      K. Lazarev    (Transcribed by KNL)
+  HISTORY:         Major Revision               Date        By
+            -----------------------------     --------     -----
+            Adopted from NT4 driver            6/22/99      OLD
+            Ported to Linux                    9/01/99      KNL
+
+  MODULE NAME:        rt_hw.c                       
+  AUTHOR:             O. Druzhinin  (Transcribed by OLD)
+                      C. Lazarev    (Transcribed by CNL)
+  HISTORY:         Major Revision               Date        By
+            -----------------------------     --------     -----
+            Created                           11/18/97      OLD
+            Hardware functions for RipTide    11/24/97      CNL
+            (ES1) are coded
+            Hardware functions for RipTide    12/24/97      CNL
+            (A0) are coded
+            Hardware functions for RipTide    03/20/98      CNL
+            (A1) are coded
+            Boot loader is included           05/07/98      CNL
+            Redesigned for WDM                07/27/98      CNL
+            Redesigned for Linux              09/01/99      CNL
+
+  MODULE NAME:        rt_hw.h
+  AUTHOR:             C. Lazarev    (Transcribed by CNL)
+  HISTORY:         Major Revision               Date        By
+            -----------------------------     --------     -----
+            Created                           11/18/97      CNL
+
+  MODULE NAME:     rt_mdl.c                       
+  AUTHOR:          Konstantin Lazarev    (Transcribed by KNL)
+  HISTORY:         Major Revision               Date        By
+            -----------------------------     --------     -----
+            Created                           10/01/99      KNL
+
+  MODULE NAME:        mixer.h                        
+  AUTHOR:             K. Kenney
+  HISTORY:         Major Revision                   Date          By
+            -----------------------------          --------     -----
+            Created from MS W95 Sample             11/28/95      KRS
+            RipTide                                10/15/97      KRS
+            Adopted for Windows NT driver          01/20/98      CNL
+*/
+
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/wait.h>
+#include <linux/gameport.h>
+#include <linux/device.h>
+#include <linux/firmware.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <sound/core.h>
+#include <sound/info.h>
+#include <sound/control.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/ac97_codec.h>
+#include <sound/mpu401.h>
+#include <sound/opl3.h>
+#include <sound/initval.h>
+
+#if IS_REACHABLE(CONFIG_GAMEPORT)
+#define SUPPORT_JOYSTICK 1
+#endif
+
+MODULE_AUTHOR("Peter Gruber <nokos@gmx.net>");
+MODULE_DESCRIPTION("riptide");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("{{Conexant,Riptide}}");
+MODULE_FIRMWARE("riptide.hex");
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE;
+
+#ifdef SUPPORT_JOYSTICK
+static int joystick_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x200 };
+#endif
+static int mpu_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x330 };
+static int opl3_port[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS - 1)] = 0x388 };
+
+module_param_array(index, int, NULL, 0444);
+MODULE_PARM_DESC(index, "Index value for Riptide soundcard.");
+module_param_array(id, charp, NULL, 0444);
+MODULE_PARM_DESC(id, "ID string for Riptide soundcard.");
+module_param_array(enable, bool, NULL, 0444);
+MODULE_PARM_DESC(enable, "Enable Riptide soundcard.");
+#ifdef SUPPORT_JOYSTICK
+module_param_hw_array(joystick_port, int, ioport, NULL, 0444);
+MODULE_PARM_DESC(joystick_port, "Joystick port # for Riptide soundcard.");
+#endif
+module_param_hw_array(mpu_port, int, ioport, NULL, 0444);
+MODULE_PARM_DESC(mpu_port, "MPU401 port # for Riptide driver.");
+module_param_hw_array(opl3_port, int, ioport, NULL, 0444);
+MODULE_PARM_DESC(opl3_port, "OPL3 port # for Riptide driver.");
+
+/*
+ */
+
+#define MPU401_HW_RIPTIDE MPU401_HW_MPU401
+#define OPL3_HW_RIPTIDE   OPL3_HW_OPL3
+
+#define PCI_EXT_CapId       0x40
+#define PCI_EXT_NextCapPrt  0x41
+#define PCI_EXT_PWMC        0x42
+#define PCI_EXT_PWSCR       0x44
+#define PCI_EXT_Data00      0x46
+#define PCI_EXT_PMSCR_BSE   0x47
+#define PCI_EXT_SB_Base     0x48
+#define PCI_EXT_FM_Base     0x4a
+#define PCI_EXT_MPU_Base    0x4C
+#define PCI_EXT_Game_Base   0x4E
+#define PCI_EXT_Legacy_Mask 0x50
+#define PCI_EXT_AsicRev     0x52
+#define PCI_EXT_Reserved3   0x53
+
+#define LEGACY_ENABLE_ALL      0x8000	/* legacy device options */
+#define LEGACY_ENABLE_SB       0x4000
+#define LEGACY_ENABLE_FM       0x2000
+#define LEGACY_ENABLE_MPU_INT  0x1000
+#define LEGACY_ENABLE_MPU      0x0800
+#define LEGACY_ENABLE_GAMEPORT 0x0400
+
+#define MAX_WRITE_RETRY  10	/* cmd interface limits */
+#define MAX_ERROR_COUNT  10
+#define CMDIF_TIMEOUT    50000
+#define RESET_TRIES      5
+
+#define READ_PORT_ULONG(p)     inl((unsigned long)&(p))
+#define WRITE_PORT_ULONG(p,x)  outl(x,(unsigned long)&(p))
+
+#define READ_AUDIO_CONTROL(p)     READ_PORT_ULONG(p->audio_control)
+#define WRITE_AUDIO_CONTROL(p,x)  WRITE_PORT_ULONG(p->audio_control,x)
+#define UMASK_AUDIO_CONTROL(p,x)  WRITE_PORT_ULONG(p->audio_control,READ_PORT_ULONG(p->audio_control)|x)
+#define MASK_AUDIO_CONTROL(p,x)   WRITE_PORT_ULONG(p->audio_control,READ_PORT_ULONG(p->audio_control)&x)
+#define READ_AUDIO_STATUS(p)      READ_PORT_ULONG(p->audio_status)
+
+#define SET_GRESET(p)     UMASK_AUDIO_CONTROL(p,0x0001)	/* global reset switch */
+#define UNSET_GRESET(p)   MASK_AUDIO_CONTROL(p,~0x0001)
+#define SET_AIE(p)        UMASK_AUDIO_CONTROL(p,0x0004)	/* interrupt enable */
+#define UNSET_AIE(p)      MASK_AUDIO_CONTROL(p,~0x0004)
+#define SET_AIACK(p)      UMASK_AUDIO_CONTROL(p,0x0008)	/* interrupt acknowledge */
+#define UNSET_AIACKT(p)   MASKAUDIO_CONTROL(p,~0x0008)
+#define SET_ECMDAE(p)     UMASK_AUDIO_CONTROL(p,0x0010)
+#define UNSET_ECMDAE(p)   MASK_AUDIO_CONTROL(p,~0x0010)
+#define SET_ECMDBE(p)     UMASK_AUDIO_CONTROL(p,0x0020)
+#define UNSET_ECMDBE(p)   MASK_AUDIO_CONTROL(p,~0x0020)
+#define SET_EDATAF(p)     UMASK_AUDIO_CONTROL(p,0x0040)
+#define UNSET_EDATAF(p)   MASK_AUDIO_CONTROL(p,~0x0040)
+#define SET_EDATBF(p)     UMASK_AUDIO_CONTROL(p,0x0080)
+#define UNSET_EDATBF(p)   MASK_AUDIO_CONTROL(p,~0x0080)
+#define SET_ESBIRQON(p)   UMASK_AUDIO_CONTROL(p,0x0100)
+#define UNSET_ESBIRQON(p) MASK_AUDIO_CONTROL(p,~0x0100)
+#define SET_EMPUIRQ(p)    UMASK_AUDIO_CONTROL(p,0x0200)
+#define UNSET_EMPUIRQ(p)  MASK_AUDIO_CONTROL(p,~0x0200)
+#define IS_CMDE(a)        (READ_PORT_ULONG(a->stat)&0x1)	/* cmd empty */
+#define IS_DATF(a)        (READ_PORT_ULONG(a->stat)&0x2)	/* data filled */
+#define IS_READY(p)       (READ_AUDIO_STATUS(p)&0x0001)
+#define IS_DLREADY(p)     (READ_AUDIO_STATUS(p)&0x0002)
+#define IS_DLERR(p)       (READ_AUDIO_STATUS(p)&0x0004)
+#define IS_GERR(p)        (READ_AUDIO_STATUS(p)&0x0008)	/* error ! */
+#define IS_CMDAEIRQ(p)    (READ_AUDIO_STATUS(p)&0x0010)
+#define IS_CMDBEIRQ(p)    (READ_AUDIO_STATUS(p)&0x0020)
+#define IS_DATAFIRQ(p)    (READ_AUDIO_STATUS(p)&0x0040)
+#define IS_DATBFIRQ(p)    (READ_AUDIO_STATUS(p)&0x0080)
+#define IS_EOBIRQ(p)      (READ_AUDIO_STATUS(p)&0x0100)	/* interrupt status */
+#define IS_EOSIRQ(p)      (READ_AUDIO_STATUS(p)&0x0200)
+#define IS_EOCIRQ(p)      (READ_AUDIO_STATUS(p)&0x0400)
+#define IS_UNSLIRQ(p)     (READ_AUDIO_STATUS(p)&0x0800)
+#define IS_SBIRQ(p)       (READ_AUDIO_STATUS(p)&0x1000)
+#define IS_MPUIRQ(p)      (READ_AUDIO_STATUS(p)&0x2000)
+
+#define RESP 0x00000001		/* command flags */
+#define PARM 0x00000002
+#define CMDA 0x00000004
+#define CMDB 0x00000008
+#define NILL 0x00000000
+
+#define LONG0(a)   ((u32)a)	/* shifts and masks */
+#define BYTE0(a)   (LONG0(a)&0xff)
+#define BYTE1(a)   (BYTE0(a)<<8)
+#define BYTE2(a)   (BYTE0(a)<<16)
+#define BYTE3(a)   (BYTE0(a)<<24)
+#define WORD0(a)   (LONG0(a)&0xffff)
+#define WORD1(a)   (WORD0(a)<<8)
+#define WORD2(a)   (WORD0(a)<<16)
+#define TRINIB0(a) (LONG0(a)&0xffffff)
+#define TRINIB1(a) (TRINIB0(a)<<8)
+
+#define RET(a)     ((union cmdret *)(a))
+
+#define SEND_GETV(p,b)             sendcmd(p,RESP,GETV,0,RET(b))	/* get version */
+#define SEND_GETC(p,b,c)           sendcmd(p,PARM|RESP,GETC,c,RET(b))
+#define SEND_GUNS(p,b)             sendcmd(p,RESP,GUNS,0,RET(b))
+#define SEND_SCID(p,b)             sendcmd(p,RESP,SCID,0,RET(b))
+#define SEND_RMEM(p,b,c,d)         sendcmd(p,PARM|RESP,RMEM|BYTE1(b),LONG0(c),RET(d))	/* memory access for firmware write */
+#define SEND_SMEM(p,b,c)           sendcmd(p,PARM,SMEM|BYTE1(b),LONG0(c),RET(0))	/* memory access for firmware write */
+#define SEND_WMEM(p,b,c)           sendcmd(p,PARM,WMEM|BYTE1(b),LONG0(c),RET(0))	/* memory access for firmware write */
+#define SEND_SDTM(p,b,c)           sendcmd(p,PARM|RESP,SDTM|TRINIB1(b),0,RET(c))	/* memory access for firmware write */
+#define SEND_GOTO(p,b)             sendcmd(p,PARM,GOTO,LONG0(b),RET(0))	/* memory access for firmware write */
+#define SEND_SETDPLL(p)	           sendcmd(p,0,ARM_SETDPLL,0,RET(0))
+#define SEND_SSTR(p,b,c)           sendcmd(p,PARM,SSTR|BYTE3(b),LONG0(c),RET(0))	/* start stream */
+#define SEND_PSTR(p,b)             sendcmd(p,PARM,PSTR,BYTE3(b),RET(0))	/* pause stream */
+#define SEND_KSTR(p,b)             sendcmd(p,PARM,KSTR,BYTE3(b),RET(0))	/* stop stream */
+#define SEND_KDMA(p)               sendcmd(p,0,KDMA,0,RET(0))	/* stop all dma */
+#define SEND_GPOS(p,b,c,d)         sendcmd(p,PARM|RESP,GPOS,BYTE3(c)|BYTE2(b),RET(d))	/* get position in dma */
+#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 */
+#define SEND_GSTS(p,b,c,d)         sendcmd(p,PARM|RESP,GSTS,BYTE3(c)|BYTE2(b),RET(d))
+#define SEND_NGPOS(p,b,c,d)        sendcmd(p,PARM|RESP,NGPOS,BYTE3(c)|BYTE2(b),RET(d))
+#define SEND_PSEL(p,b,c)           sendcmd(p,PARM,PSEL,BYTE2(b)|BYTE3(c),RET(0))	/* activate lbus path */
+#define SEND_PCLR(p,b,c)           sendcmd(p,PARM,PCLR,BYTE2(b)|BYTE3(c),RET(0))	/* deactivate lbus path */
+#define SEND_PLST(p,b)             sendcmd(p,PARM,PLST,BYTE3(b),RET(0))
+#define SEND_RSSV(p,b,c,d)         sendcmd(p,PARM|RESP,RSSV,BYTE2(b)|BYTE3(c),RET(d))
+#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 */
+#define SEND_SSRC(p,b,c,d,e)       sendcmd(p,PARM,SSRC|BYTE1(b)|WORD2(c),WORD0(d)|WORD2(e),RET(0))	/* configure source */
+#define SEND_SLST(p,b)             sendcmd(p,PARM,SLST,BYTE3(b),RET(0))
+#define SEND_RSRC(p,b,c)           sendcmd(p,RESP,RSRC|BYTE1(b),0,RET(c))	/* read source config */
+#define SEND_SSRB(p,b,c)           sendcmd(p,PARM,SSRB|BYTE1(b),WORD2(c),RET(0))
+#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 */
+#define SEND_RDGV(p,b,c,d)         sendcmd(p,PARM|RESP,RDGV|BYTE2(b)|BYTE3(c),0,RET(d))	/* read digital mixer */
+#define SEND_DLST(p,b)             sendcmd(p,PARM,DLST,BYTE3(b),RET(0))
+#define SEND_SACR(p,b,c)           sendcmd(p,PARM,SACR,WORD0(b)|WORD2(c),RET(0))	/* set AC97 register */
+#define SEND_RACR(p,b,c)           sendcmd(p,PARM|RESP,RACR,WORD2(b),RET(c))	/* get AC97 register */
+#define SEND_ALST(p,b)             sendcmd(p,PARM,ALST,BYTE3(b),RET(0))
+#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))
+#define SEND_RXAC(p,b,c,d)         sendcmd(p,PARM|RESP,RXAC,BYTE2(b)|BYTE3(c),RET(d))
+#define SEND_SI2S(p,b)             sendcmd(p,PARM,SI2S,WORD2(b),RET(0))
+
+#define EOB_STATUS         0x80000000	/* status flags : block boundary */
+#define EOS_STATUS         0x40000000	/*              : stoppped */
+#define EOC_STATUS         0x20000000	/*              : stream end */
+#define ERR_STATUS         0x10000000
+#define EMPTY_STATUS       0x08000000
+
+#define IEOB_ENABLE        0x1	/* enable interrupts for status notification above */
+#define IEOS_ENABLE        0x2
+#define IEOC_ENABLE        0x4
+#define RDONCE             0x8
+#define DESC_MAX_MASK      0xff
+
+#define ST_PLAY  0x1		/* stream states */
+#define ST_STOP  0x2
+#define ST_PAUSE 0x4
+
+#define I2S_INTDEC     3	/* config for I2S link */
+#define I2S_MERGER     0
+#define I2S_SPLITTER   0
+#define I2S_MIXER      7
+#define I2S_RATE       44100
+
+#define MODEM_INTDEC   4	/* config for modem link */
+#define MODEM_MERGER   3
+#define MODEM_SPLITTER 0
+#define MODEM_MIXER    11
+
+#define FM_INTDEC      3	/* config for FM/OPL3 link */
+#define FM_MERGER      0
+#define FM_SPLITTER    0
+#define FM_MIXER       9
+
+#define SPLIT_PATH  0x80	/* path splitting flag */
+
+enum FIRMWARE {
+	DATA_REC = 0, EXT_END_OF_FILE, EXT_SEG_ADDR_REC, EXT_GOTO_CMD_REC,
+	EXT_LIN_ADDR_REC,
+};
+
+enum CMDS {
+	GETV = 0x00, GETC, GUNS, SCID, RMEM =
+	    0x10, SMEM, WMEM, SDTM, GOTO, SSTR =
+	    0x20, PSTR, KSTR, KDMA, GPOS, SETF, GSTS, NGPOS, PSEL =
+	    0x30, PCLR, PLST, RSSV, LSEL, SSRC = 0x40, SLST, RSRC, SSRB, SDGV =
+	    0x50, RDGV, DLST, SACR = 0x60, RACR, ALST, TXAC, RXAC, SI2S =
+	    0x70, ARM_SETDPLL = 0x72,
+};
+
+enum E1SOURCE {
+	ARM2LBUS_FIFO0 = 0, ARM2LBUS_FIFO1, ARM2LBUS_FIFO2, ARM2LBUS_FIFO3,
+	ARM2LBUS_FIFO4, ARM2LBUS_FIFO5, ARM2LBUS_FIFO6, ARM2LBUS_FIFO7,
+	ARM2LBUS_FIFO8, ARM2LBUS_FIFO9, ARM2LBUS_FIFO10, ARM2LBUS_FIFO11,
+	ARM2LBUS_FIFO12, ARM2LBUS_FIFO13, ARM2LBUS_FIFO14, ARM2LBUS_FIFO15,
+	INTER0_OUT, INTER1_OUT, INTER2_OUT, INTER3_OUT, INTER4_OUT,
+	INTERM0_OUT, INTERM1_OUT, INTERM2_OUT, INTERM3_OUT, INTERM4_OUT,
+	INTERM5_OUT, INTERM6_OUT, DECIMM0_OUT, DECIMM1_OUT, DECIMM2_OUT,
+	DECIMM3_OUT, DECIM0_OUT, SR3_4_OUT, OPL3_SAMPLE, ASRC0, ASRC1,
+	ACLNK2PADC, ACLNK2MODEM0RX, ACLNK2MIC, ACLNK2MODEM1RX, ACLNK2HNDMIC,
+	DIGITAL_MIXER_OUT0, GAINFUNC0_OUT, GAINFUNC1_OUT, GAINFUNC2_OUT,
+	GAINFUNC3_OUT, GAINFUNC4_OUT, SOFTMODEMTX, SPLITTER0_OUTL,
+	SPLITTER0_OUTR, SPLITTER1_OUTL, SPLITTER1_OUTR, SPLITTER2_OUTL,
+	SPLITTER2_OUTR, SPLITTER3_OUTL, SPLITTER3_OUTR, MERGER0_OUT,
+	MERGER1_OUT, MERGER2_OUT, MERGER3_OUT, ARM2LBUS_FIFO_DIRECT, NO_OUT
+};
+
+enum E2SINK {
+	LBUS2ARM_FIFO0 = 0, LBUS2ARM_FIFO1, LBUS2ARM_FIFO2, LBUS2ARM_FIFO3,
+	LBUS2ARM_FIFO4, LBUS2ARM_FIFO5, LBUS2ARM_FIFO6, LBUS2ARM_FIFO7,
+	INTER0_IN, INTER1_IN, INTER2_IN, INTER3_IN, INTER4_IN, INTERM0_IN,
+	INTERM1_IN, INTERM2_IN, INTERM3_IN, INTERM4_IN, INTERM5_IN, INTERM6_IN,
+	DECIMM0_IN, DECIMM1_IN, DECIMM2_IN, DECIMM3_IN, DECIM0_IN, SR3_4_IN,
+	PDAC2ACLNK, MODEM0TX2ACLNK, MODEM1TX2ACLNK, HNDSPK2ACLNK,
+	DIGITAL_MIXER_IN0, DIGITAL_MIXER_IN1, DIGITAL_MIXER_IN2,
+	DIGITAL_MIXER_IN3, DIGITAL_MIXER_IN4, DIGITAL_MIXER_IN5,
+	DIGITAL_MIXER_IN6, DIGITAL_MIXER_IN7, DIGITAL_MIXER_IN8,
+	DIGITAL_MIXER_IN9, DIGITAL_MIXER_IN10, DIGITAL_MIXER_IN11,
+	GAINFUNC0_IN, GAINFUNC1_IN, GAINFUNC2_IN, GAINFUNC3_IN, GAINFUNC4_IN,
+	SOFTMODEMRX, SPLITTER0_IN, SPLITTER1_IN, SPLITTER2_IN, SPLITTER3_IN,
+	MERGER0_INL, MERGER0_INR, MERGER1_INL, MERGER1_INR, MERGER2_INL,
+	MERGER2_INR, MERGER3_INL, MERGER3_INR, E2SINK_MAX
+};
+
+enum LBUS_SINK {
+	LS_SRC_INTERPOLATOR = 0, LS_SRC_INTERPOLATORM, LS_SRC_DECIMATOR,
+	LS_SRC_DECIMATORM, LS_MIXER_IN, LS_MIXER_GAIN_FUNCTION,
+	LS_SRC_SPLITTER, LS_SRC_MERGER, LS_NONE1, LS_NONE2,
+};
+
+enum RT_CHANNEL_IDS {
+	M0TX = 0, M1TX, TAMTX, HSSPKR, PDAC, DSNDTX0, DSNDTX1, DSNDTX2,
+	DSNDTX3, DSNDTX4, DSNDTX5, DSNDTX6, DSNDTX7, WVSTRTX, COP3DTX, SPARE,
+	M0RX, HSMIC, M1RX, CLEANRX, MICADC, PADC, COPRX1, COPRX2,
+	CHANNEL_ID_COUNTER
+};
+
+enum { SB_CMD = 0, MODEM_CMD, I2S_CMD0, I2S_CMD1, FM_CMD, MAX_CMD };
+
+struct lbuspath {
+	unsigned char *noconv;
+	unsigned char *stereo;
+	unsigned char *mono;
+};
+
+struct cmdport {
+	u32 data1;		/* cmd,param */
+	u32 data2;		/* param */
+	u32 stat;		/* status */
+	u32 pad[5];
+};
+
+struct riptideport {
+	u32 audio_control;	/* status registers */
+	u32 audio_status;
+	u32 pad[2];
+	struct cmdport port[2];	/* command ports */
+};
+
+struct cmdif {
+	struct riptideport *hwport;
+	spinlock_t lock;
+	unsigned int cmdcnt;	/* cmd statistics */
+	unsigned int cmdtime;
+	unsigned int cmdtimemax;
+	unsigned int cmdtimemin;
+	unsigned int errcnt;
+	int is_reset;
+};
+
+struct riptide_firmware {
+	u16 ASIC;
+	u16 CODEC;
+	u16 AUXDSP;
+	u16 PROG;
+};
+
+union cmdret {
+	u8 retbytes[8];
+	u16 retwords[4];
+	u32 retlongs[2];
+};
+
+union firmware_version {
+	union cmdret ret;
+	struct riptide_firmware firmware;
+};
+
+#define get_pcmhwdev(substream) (struct pcmhw *)(substream->runtime->private_data)
+
+#define PLAYBACK_SUBSTREAMS 3
+struct snd_riptide {
+	struct snd_card *card;
+	struct pci_dev *pci;
+	const struct firmware *fw_entry;
+
+	struct cmdif *cif;
+
+	struct snd_pcm *pcm;
+	struct snd_pcm *pcm_i2s;
+	struct snd_rawmidi *rmidi;
+	struct snd_opl3 *opl3;
+	struct snd_ac97 *ac97;
+	struct snd_ac97_bus *ac97_bus;
+
+	struct snd_pcm_substream *playback_substream[PLAYBACK_SUBSTREAMS];
+	struct snd_pcm_substream *capture_substream;
+
+	int openstreams;
+
+	int irq;
+	unsigned long port;
+	unsigned short mpuaddr;
+	unsigned short opladdr;
+#ifdef SUPPORT_JOYSTICK
+	unsigned short gameaddr;
+#endif
+	struct resource *res_port;
+
+	unsigned short device_id;
+
+	union firmware_version firmware;
+
+	spinlock_t lock;
+	struct tasklet_struct riptide_tq;
+	struct snd_info_entry *proc_entry;
+
+	unsigned long received_irqs;
+	unsigned long handled_irqs;
+#ifdef CONFIG_PM_SLEEP
+	int in_suspend;
+#endif
+};
+
+struct sgd {			/* scatter gather desriptor */
+	__le32 dwNextLink;
+	__le32 dwSegPtrPhys;
+	__le32 dwSegLen;
+	__le32 dwStat_Ctl;
+};
+
+struct pcmhw {			/* pcm descriptor */
+	struct lbuspath paths;
+	unsigned char *lbuspath;
+	unsigned char source;
+	unsigned char intdec[2];
+	unsigned char mixer;
+	unsigned char id;
+	unsigned char state;
+	unsigned int rate;
+	unsigned int channels;
+	snd_pcm_format_t format;
+	struct snd_dma_buffer sgdlist;
+	struct sgd *sgdbuf;
+	unsigned int size;
+	unsigned int pages;
+	unsigned int oldpos;
+	unsigned int pointer;
+};
+
+#define CMDRET_ZERO (union cmdret){{(u32)0, (u32) 0}}
+
+static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
+		   union cmdret *ret);
+static int getsourcesink(struct cmdif *cif, unsigned char source,
+			 unsigned char sink, unsigned char *a,
+			 unsigned char *b);
+static int snd_riptide_initialize(struct snd_riptide *chip);
+static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip);
+
+/*
+ */
+
+static const struct pci_device_id snd_riptide_ids[] = {
+	{ PCI_DEVICE(0x127a, 0x4310) },
+	{ PCI_DEVICE(0x127a, 0x4320) },
+	{ PCI_DEVICE(0x127a, 0x4330) },
+	{ PCI_DEVICE(0x127a, 0x4340) },
+	{0,},
+};
+
+#ifdef SUPPORT_JOYSTICK
+static const struct pci_device_id snd_riptide_joystick_ids[] = {
+	{ PCI_DEVICE(0x127a, 0x4312) },
+	{ PCI_DEVICE(0x127a, 0x4322) },
+	{ PCI_DEVICE(0x127a, 0x4332) },
+	{ PCI_DEVICE(0x127a, 0x4342) },
+	{0,},
+};
+#endif
+
+MODULE_DEVICE_TABLE(pci, snd_riptide_ids);
+
+/*
+ */
+
+static unsigned char lbusin2out[E2SINK_MAX + 1][2] = {
+	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
+								     LS_NONE2},
+	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1}, {NO_OUT,
+								     LS_NONE2},
+	{INTER0_OUT, LS_SRC_INTERPOLATOR}, {INTER1_OUT, LS_SRC_INTERPOLATOR},
+	{INTER2_OUT, LS_SRC_INTERPOLATOR}, {INTER3_OUT, LS_SRC_INTERPOLATOR},
+	{INTER4_OUT, LS_SRC_INTERPOLATOR}, {INTERM0_OUT, LS_SRC_INTERPOLATORM},
+	{INTERM1_OUT, LS_SRC_INTERPOLATORM}, {INTERM2_OUT,
+					      LS_SRC_INTERPOLATORM},
+	{INTERM3_OUT, LS_SRC_INTERPOLATORM}, {INTERM4_OUT,
+					      LS_SRC_INTERPOLATORM},
+	{INTERM5_OUT, LS_SRC_INTERPOLATORM}, {INTERM6_OUT,
+					      LS_SRC_INTERPOLATORM},
+	{DECIMM0_OUT, LS_SRC_DECIMATORM}, {DECIMM1_OUT, LS_SRC_DECIMATORM},
+	{DECIMM2_OUT, LS_SRC_DECIMATORM}, {DECIMM3_OUT, LS_SRC_DECIMATORM},
+	{DECIM0_OUT, LS_SRC_DECIMATOR}, {SR3_4_OUT, LS_NONE1}, {NO_OUT,
+								LS_NONE2},
+	{NO_OUT, LS_NONE1}, {NO_OUT, LS_NONE2}, {NO_OUT, LS_NONE1},
+	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
+	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
+	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
+	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
+	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
+	{DIGITAL_MIXER_OUT0, LS_MIXER_IN}, {DIGITAL_MIXER_OUT0, LS_MIXER_IN},
+	{GAINFUNC0_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC1_OUT,
+						  LS_MIXER_GAIN_FUNCTION},
+	{GAINFUNC2_OUT, LS_MIXER_GAIN_FUNCTION}, {GAINFUNC3_OUT,
+						  LS_MIXER_GAIN_FUNCTION},
+	{GAINFUNC4_OUT, LS_MIXER_GAIN_FUNCTION}, {SOFTMODEMTX, LS_NONE1},
+	{SPLITTER0_OUTL, LS_SRC_SPLITTER}, {SPLITTER1_OUTL, LS_SRC_SPLITTER},
+	{SPLITTER2_OUTL, LS_SRC_SPLITTER}, {SPLITTER3_OUTL, LS_SRC_SPLITTER},
+	{MERGER0_OUT, LS_SRC_MERGER}, {MERGER0_OUT, LS_SRC_MERGER},
+	{MERGER1_OUT, LS_SRC_MERGER},
+	{MERGER1_OUT, LS_SRC_MERGER}, {MERGER2_OUT, LS_SRC_MERGER},
+	{MERGER2_OUT, LS_SRC_MERGER},
+	{MERGER3_OUT, LS_SRC_MERGER}, {MERGER3_OUT, LS_SRC_MERGER}, {NO_OUT,
+								     LS_NONE2},
+};
+
+static unsigned char lbus_play_opl3[] = {
+	DIGITAL_MIXER_IN0 + FM_MIXER, 0xff
+};
+static unsigned char lbus_play_modem[] = {
+	DIGITAL_MIXER_IN0 + MODEM_MIXER, 0xff
+};
+static unsigned char lbus_play_i2s[] = {
+	INTER0_IN + I2S_INTDEC, DIGITAL_MIXER_IN0 + I2S_MIXER, 0xff
+};
+static unsigned char lbus_play_out[] = {
+	PDAC2ACLNK, 0xff
+};
+static unsigned char lbus_play_outhp[] = {
+	HNDSPK2ACLNK, 0xff
+};
+static unsigned char lbus_play_noconv1[] = {
+	DIGITAL_MIXER_IN0, 0xff
+};
+static unsigned char lbus_play_stereo1[] = {
+	INTER0_IN, DIGITAL_MIXER_IN0, 0xff
+};
+static unsigned char lbus_play_mono1[] = {
+	INTERM0_IN, DIGITAL_MIXER_IN0, 0xff
+};
+static unsigned char lbus_play_noconv2[] = {
+	DIGITAL_MIXER_IN1, 0xff
+};
+static unsigned char lbus_play_stereo2[] = {
+	INTER1_IN, DIGITAL_MIXER_IN1, 0xff
+};
+static unsigned char lbus_play_mono2[] = {
+	INTERM1_IN, DIGITAL_MIXER_IN1, 0xff
+};
+static unsigned char lbus_play_noconv3[] = {
+	DIGITAL_MIXER_IN2, 0xff
+};
+static unsigned char lbus_play_stereo3[] = {
+	INTER2_IN, DIGITAL_MIXER_IN2, 0xff
+};
+static unsigned char lbus_play_mono3[] = {
+	INTERM2_IN, DIGITAL_MIXER_IN2, 0xff
+};
+static unsigned char lbus_rec_noconv1[] = {
+	LBUS2ARM_FIFO5, 0xff
+};
+static unsigned char lbus_rec_stereo1[] = {
+	DECIM0_IN, LBUS2ARM_FIFO5, 0xff
+};
+static unsigned char lbus_rec_mono1[] = {
+	DECIMM3_IN, LBUS2ARM_FIFO5, 0xff
+};
+
+static unsigned char play_ids[] = { 4, 1, 2, };
+static unsigned char play_sources[] = {
+	ARM2LBUS_FIFO4, ARM2LBUS_FIFO1, ARM2LBUS_FIFO2,
+};
+static struct lbuspath lbus_play_paths[] = {
+	{
+	 .noconv = lbus_play_noconv1,
+	 .stereo = lbus_play_stereo1,
+	 .mono = lbus_play_mono1,
+	 },
+	{
+	 .noconv = lbus_play_noconv2,
+	 .stereo = lbus_play_stereo2,
+	 .mono = lbus_play_mono2,
+	 },
+	{
+	 .noconv = lbus_play_noconv3,
+	 .stereo = lbus_play_stereo3,
+	 .mono = lbus_play_mono3,
+	 },
+};
+static const struct lbuspath lbus_rec_path = {
+	.noconv = lbus_rec_noconv1,
+	.stereo = lbus_rec_stereo1,
+	.mono = lbus_rec_mono1,
+};
+
+#define FIRMWARE_VERSIONS 1
+static union firmware_version firmware_versions[] = {
+	{
+		.firmware = {
+			.ASIC = 3,
+			.CODEC = 2,
+			.AUXDSP = 3,
+			.PROG = 773,
+		},
+	},
+};
+
+static u32 atoh(const unsigned char *in, unsigned int len)
+{
+	u32 sum = 0;
+	unsigned int mult = 1;
+	unsigned char c;
+
+	while (len) {
+		int value;
+
+		c = in[len - 1];
+		value = hex_to_bin(c);
+		if (value >= 0)
+			sum += mult * value;
+		mult *= 16;
+		--len;
+	}
+	return sum;
+}
+
+static int senddata(struct cmdif *cif, const unsigned char *in, u32 offset)
+{
+	u32 addr;
+	u32 data;
+	u32 i;
+	const unsigned char *p;
+
+	i = atoh(&in[1], 2);
+	addr = offset + atoh(&in[3], 4);
+	if (SEND_SMEM(cif, 0, addr) != 0)
+		return -EACCES;
+	p = in + 9;
+	while (i) {
+		data = atoh(p, 8);
+		if (SEND_WMEM(cif, 2,
+			      ((data & 0x0f0f0f0f) << 4) | ((data & 0xf0f0f0f0)
+							    >> 4)))
+			return -EACCES;
+		i -= 4;
+		p += 8;
+	}
+	return 0;
+}
+
+static int loadfirmware(struct cmdif *cif, const unsigned char *img,
+			unsigned int size)
+{
+	const unsigned char *in;
+	u32 laddr, saddr, t, val;
+	int err = 0;
+
+	laddr = saddr = 0;
+	while (size > 0 && err == 0) {
+		in = img;
+		if (in[0] == ':') {
+			t = atoh(&in[7], 2);
+			switch (t) {
+			case DATA_REC:
+				err = senddata(cif, in, laddr + saddr);
+				break;
+			case EXT_SEG_ADDR_REC:
+				saddr = atoh(&in[9], 4) << 4;
+				break;
+			case EXT_LIN_ADDR_REC:
+				laddr = atoh(&in[9], 4) << 16;
+				break;
+			case EXT_GOTO_CMD_REC:
+				val = atoh(&in[9], 8);
+				if (SEND_GOTO(cif, val) != 0)
+					err = -EACCES;
+				break;
+			case EXT_END_OF_FILE:
+				size = 0;
+				break;
+			default:
+				break;
+			}
+			while (size > 0) {
+				size--;
+				if (*img++ == '\n')
+					break;
+			}
+		}
+	}
+	snd_printdd("load firmware return %d\n", err);
+	return err;
+}
+
+static void
+alloclbuspath(struct cmdif *cif, unsigned char source,
+	      unsigned char *path, unsigned char *mixer, unsigned char *s)
+{
+	while (*path != 0xff) {
+		unsigned char sink, type;
+
+		sink = *path & (~SPLIT_PATH);
+		if (sink != E2SINK_MAX) {
+			snd_printdd("alloc path 0x%x->0x%x\n", source, sink);
+			SEND_PSEL(cif, source, sink);
+			source = lbusin2out[sink][0];
+			type = lbusin2out[sink][1];
+			if (type == LS_MIXER_IN) {
+				if (mixer)
+					*mixer = sink - DIGITAL_MIXER_IN0;
+			}
+			if (type == LS_SRC_DECIMATORM ||
+			    type == LS_SRC_DECIMATOR ||
+			    type == LS_SRC_INTERPOLATORM ||
+			    type == LS_SRC_INTERPOLATOR) {
+				if (s) {
+					if (s[0] != 0xff)
+						s[1] = sink;
+					else
+						s[0] = sink;
+				}
+			}
+		}
+		if (*path++ & SPLIT_PATH) {
+			unsigned char *npath = path;
+
+			while (*npath != 0xff)
+				npath++;
+			alloclbuspath(cif, source + 1, ++npath, mixer, s);
+		}
+	}
+}
+
+static void
+freelbuspath(struct cmdif *cif, unsigned char source, unsigned char *path)
+{
+	while (*path != 0xff) {
+		unsigned char sink;
+
+		sink = *path & (~SPLIT_PATH);
+		if (sink != E2SINK_MAX) {
+			snd_printdd("free path 0x%x->0x%x\n", source, sink);
+			SEND_PCLR(cif, source, sink);
+			source = lbusin2out[sink][0];
+		}
+		if (*path++ & SPLIT_PATH) {
+			unsigned char *npath = path;
+
+			while (*npath != 0xff)
+				npath++;
+			freelbuspath(cif, source + 1, ++npath);
+		}
+	}
+}
+
+static int writearm(struct cmdif *cif, u32 addr, u32 data, u32 mask)
+{
+	union cmdret rptr = CMDRET_ZERO;
+	unsigned int i = MAX_WRITE_RETRY;
+	int flag = 1;
+
+	SEND_RMEM(cif, 0x02, addr, &rptr);
+	rptr.retlongs[0] &= (~mask);
+
+	while (--i) {
+		SEND_SMEM(cif, 0x01, addr);
+		SEND_WMEM(cif, 0x02, (rptr.retlongs[0] | data));
+		SEND_RMEM(cif, 0x02, addr, &rptr);
+		if ((rptr.retlongs[0] & data) == data) {
+			flag = 0;
+			break;
+		} else
+			rptr.retlongs[0] &= ~mask;
+	}
+	snd_printdd("send arm 0x%x 0x%x 0x%x return %d\n", addr, data, mask,
+		    flag);
+	return flag;
+}
+
+static int sendcmd(struct cmdif *cif, u32 flags, u32 cmd, u32 parm,
+		   union cmdret *ret)
+{
+	int i, j;
+	int err;
+	unsigned int time = 0;
+	unsigned long irqflags;
+	struct riptideport *hwport;
+	struct cmdport *cmdport = NULL;
+
+	if (snd_BUG_ON(!cif))
+		return -EINVAL;
+
+	hwport = cif->hwport;
+	if (cif->errcnt > MAX_ERROR_COUNT) {
+		if (cif->is_reset) {
+			snd_printk(KERN_ERR
+				   "Riptide: Too many failed cmds, reinitializing\n");
+			if (riptide_reset(cif, NULL) == 0) {
+				cif->errcnt = 0;
+				return -EIO;
+			}
+		}
+		snd_printk(KERN_ERR "Riptide: Initialization failed.\n");
+		return -EINVAL;
+	}
+	if (ret) {
+		ret->retlongs[0] = 0;
+		ret->retlongs[1] = 0;
+	}
+	i = 0;
+	spin_lock_irqsave(&cif->lock, irqflags);
+	while (i++ < CMDIF_TIMEOUT && !IS_READY(cif->hwport))
+		udelay(10);
+	if (i > CMDIF_TIMEOUT) {
+		err = -EBUSY;
+		goto errout;
+	}
+
+	err = 0;
+	for (j = 0, time = 0; time < CMDIF_TIMEOUT; j++, time += 2) {
+		cmdport = &(hwport->port[j % 2]);
+		if (IS_DATF(cmdport)) {	/* free pending data */
+			READ_PORT_ULONG(cmdport->data1);
+			READ_PORT_ULONG(cmdport->data2);
+		}
+		if (IS_CMDE(cmdport)) {
+			if (flags & PARM)	/* put data */
+				WRITE_PORT_ULONG(cmdport->data2, parm);
+			WRITE_PORT_ULONG(cmdport->data1, cmd);	/* write cmd */
+			if ((flags & RESP) && ret) {
+				while (!IS_DATF(cmdport) &&
+				       time < CMDIF_TIMEOUT) {
+					udelay(10);
+					time++;
+				}
+				if (time < CMDIF_TIMEOUT) {	/* read response */
+					ret->retlongs[0] =
+					    READ_PORT_ULONG(cmdport->data1);
+					ret->retlongs[1] =
+					    READ_PORT_ULONG(cmdport->data2);
+				} else {
+					err = -ENOSYS;
+					goto errout;
+				}
+			}
+			break;
+		}
+		udelay(20);
+	}
+	if (time == CMDIF_TIMEOUT) {
+		err = -ENODATA;
+		goto errout;
+	}
+	spin_unlock_irqrestore(&cif->lock, irqflags);
+
+	cif->cmdcnt++;		/* update command statistics */
+	cif->cmdtime += time;
+	if (time > cif->cmdtimemax)
+		cif->cmdtimemax = time;
+	if (time < cif->cmdtimemin)
+		cif->cmdtimemin = time;
+	if ((cif->cmdcnt) % 1000 == 0)
+		snd_printdd
+		    ("send cmd %d time: %d mintime: %d maxtime %d err: %d\n",
+		     cif->cmdcnt, cif->cmdtime, cif->cmdtimemin,
+		     cif->cmdtimemax, cif->errcnt);
+	return 0;
+
+      errout:
+	cif->errcnt++;
+	spin_unlock_irqrestore(&cif->lock, irqflags);
+	snd_printdd
+	    ("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",
+	     cif->cmdcnt, (int)((void *)&(cmdport->stat) - (void *)hwport),
+	     flags, cmd, parm, ret ? ret->retlongs[0] : 0,
+	     ret ? ret->retlongs[1] : 0, IS_CMDE(cmdport), IS_DATF(cmdport),
+	     err);
+	return err;
+}
+
+static int
+setmixer(struct cmdif *cif, short num, unsigned short rval, unsigned short lval)
+{
+	union cmdret rptr = CMDRET_ZERO;
+	int i = 0;
+
+	snd_printdd("sent mixer %d: 0x%x 0x%x\n", num, rval, lval);
+	do {
+		SEND_SDGV(cif, num, num, rval, lval);
+		SEND_RDGV(cif, num, num, &rptr);
+		if (rptr.retwords[0] == lval && rptr.retwords[1] == rval)
+			return 0;
+	} while (i++ < MAX_WRITE_RETRY);
+	snd_printdd("sent mixer failed\n");
+	return -EIO;
+}
+
+static int getpaths(struct cmdif *cif, unsigned char *o)
+{
+	unsigned char src[E2SINK_MAX];
+	unsigned char sink[E2SINK_MAX];
+	int i, j = 0;
+
+	for (i = 0; i < E2SINK_MAX; i++) {
+		getsourcesink(cif, i, i, &src[i], &sink[i]);
+		if (sink[i] < E2SINK_MAX) {
+			o[j++] = sink[i];
+			o[j++] = i;
+		}
+	}
+	return j;
+}
+
+static int
+getsourcesink(struct cmdif *cif, unsigned char source, unsigned char sink,
+	      unsigned char *a, unsigned char *b)
+{
+	union cmdret rptr = CMDRET_ZERO;
+
+	if (SEND_RSSV(cif, source, sink, &rptr) &&
+	    SEND_RSSV(cif, source, sink, &rptr))
+		return -EIO;
+	*a = rptr.retbytes[0];
+	*b = rptr.retbytes[1];
+	snd_printdd("getsourcesink 0x%x 0x%x\n", *a, *b);
+	return 0;
+}
+
+static int
+getsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int *rate)
+{
+	unsigned char *s;
+	unsigned int p[2] = { 0, 0 };
+	int i;
+	union cmdret rptr = CMDRET_ZERO;
+
+	s = intdec;
+	for (i = 0; i < 2; i++) {
+		if (*s != 0xff) {
+			if (SEND_RSRC(cif, *s, &rptr) &&
+			    SEND_RSRC(cif, *s, &rptr))
+				return -EIO;
+			p[i] += rptr.retwords[1];
+			p[i] *= rptr.retwords[2];
+			p[i] += rptr.retwords[3];
+			p[i] /= 65536;
+		}
+		s++;
+	}
+	if (p[0]) {
+		if (p[1] != p[0])
+			snd_printdd("rates differ %d %d\n", p[0], p[1]);
+		*rate = (unsigned int)p[0];
+	} else
+		*rate = (unsigned int)p[1];
+	snd_printdd("getsampleformat %d %d %d\n", intdec[0], intdec[1], *rate);
+	return 0;
+}
+
+static int
+setsampleformat(struct cmdif *cif,
+		unsigned char mixer, unsigned char id,
+		unsigned char channels, snd_pcm_format_t format)
+{
+	unsigned char w, ch, sig, order;
+
+	snd_printdd
+	    ("setsampleformat mixer: %d id: %d channels: %d format: %d\n",
+	     mixer, id, channels, format);
+	ch = channels == 1;
+	w = snd_pcm_format_width(format) == 8;
+	sig = snd_pcm_format_unsigned(format) != 0;
+	order = snd_pcm_format_big_endian(format) != 0;
+
+	if (SEND_SETF(cif, mixer, w, ch, order, sig, id) &&
+	    SEND_SETF(cif, mixer, w, ch, order, sig, id)) {
+		snd_printdd("setsampleformat failed\n");
+		return -EIO;
+	}
+	return 0;
+}
+
+static int
+setsamplerate(struct cmdif *cif, unsigned char *intdec, unsigned int rate)
+{
+	u32 D, M, N;
+	union cmdret rptr = CMDRET_ZERO;
+	int i;
+
+	snd_printdd("setsamplerate intdec: %d,%d rate: %d\n", intdec[0],
+		    intdec[1], rate);
+	D = 48000;
+	M = ((rate == 48000) ? 47999 : rate) * 65536;
+	N = M % D;
+	M /= D;
+	for (i = 0; i < 2; i++) {
+		if (*intdec != 0xff) {
+			do {
+				SEND_SSRC(cif, *intdec, D, M, N);
+				SEND_RSRC(cif, *intdec, &rptr);
+			} while (rptr.retwords[1] != D &&
+				 rptr.retwords[2] != M &&
+				 rptr.retwords[3] != N &&
+				 i++ < MAX_WRITE_RETRY);
+			if (i > MAX_WRITE_RETRY) {
+				snd_printdd("sent samplerate %d: %d failed\n",
+					    *intdec, rate);
+				return -EIO;
+			}
+		}
+		intdec++;
+	}
+	return 0;
+}
+
+static int
+getmixer(struct cmdif *cif, short num, unsigned short *rval,
+	 unsigned short *lval)
+{
+	union cmdret rptr = CMDRET_ZERO;
+
+	if (SEND_RDGV(cif, num, num, &rptr) && SEND_RDGV(cif, num, num, &rptr))
+		return -EIO;
+	*rval = rptr.retwords[0];
+	*lval = rptr.retwords[1];
+	snd_printdd("got mixer %d: 0x%x 0x%x\n", num, *rval, *lval);
+	return 0;
+}
+
+static void riptide_handleirq(unsigned long dev_id)
+{
+	struct snd_riptide *chip = (void *)dev_id;
+	struct cmdif *cif = chip->cif;
+	struct snd_pcm_substream *substream[PLAYBACK_SUBSTREAMS + 1];
+	struct snd_pcm_runtime *runtime;
+	struct pcmhw *data = NULL;
+	unsigned int pos, period_bytes;
+	struct sgd *c;
+	int i, j;
+	unsigned int flag;
+
+	if (!cif)
+		return;
+
+	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++)
+		substream[i] = chip->playback_substream[i];
+	substream[i] = chip->capture_substream;
+	for (i = 0; i < PLAYBACK_SUBSTREAMS + 1; i++) {
+		if (substream[i] &&
+		    (runtime = substream[i]->runtime) &&
+		    (data = runtime->private_data) && data->state != ST_STOP) {
+			pos = 0;
+			for (j = 0; j < data->pages; j++) {
+				c = &data->sgdbuf[j];
+				flag = le32_to_cpu(c->dwStat_Ctl);
+				if (flag & EOB_STATUS)
+					pos += le32_to_cpu(c->dwSegLen);
+				if (flag & EOC_STATUS)
+					pos += le32_to_cpu(c->dwSegLen);
+				if ((flag & EOS_STATUS)
+				    && (data->state == ST_PLAY)) {
+					data->state = ST_STOP;
+					snd_printk(KERN_ERR
+						   "Riptide: DMA stopped unexpectedly\n");
+				}
+				c->dwStat_Ctl =
+				    cpu_to_le32(flag &
+						~(EOS_STATUS | EOB_STATUS |
+						  EOC_STATUS));
+			}
+			data->pointer += pos;
+			pos += data->oldpos;
+			if (data->state != ST_STOP) {
+				period_bytes =
+				    frames_to_bytes(runtime,
+						    runtime->period_size);
+				snd_printdd
+				    ("interrupt 0x%x after 0x%lx of 0x%lx frames in period\n",
+				     READ_AUDIO_STATUS(cif->hwport),
+				     bytes_to_frames(runtime, pos),
+				     runtime->period_size);
+				j = 0;
+				if (pos >= period_bytes) {
+					j++;
+					while (pos >= period_bytes)
+						pos -= period_bytes;
+				}
+				data->oldpos = pos;
+				if (j > 0)
+					snd_pcm_period_elapsed(substream[i]);
+			}
+		}
+	}
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int riptide_suspend(struct device *dev)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	struct snd_riptide *chip = card->private_data;
+
+	chip->in_suspend = 1;
+	snd_power_change_state(card, SNDRV_CTL_POWER_D3hot);
+	snd_pcm_suspend_all(chip->pcm);
+	snd_ac97_suspend(chip->ac97);
+	return 0;
+}
+
+static int riptide_resume(struct device *dev)
+{
+	struct snd_card *card = dev_get_drvdata(dev);
+	struct snd_riptide *chip = card->private_data;
+
+	snd_riptide_initialize(chip);
+	snd_ac97_resume(chip->ac97);
+	snd_power_change_state(card, SNDRV_CTL_POWER_D0);
+	chip->in_suspend = 0;
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(riptide_pm, riptide_suspend, riptide_resume);
+#define RIPTIDE_PM_OPS	&riptide_pm
+#else
+#define RIPTIDE_PM_OPS	NULL
+#endif /* CONFIG_PM_SLEEP */
+
+static int try_to_load_firmware(struct cmdif *cif, struct snd_riptide *chip)
+{
+	union firmware_version firmware = { .ret = CMDRET_ZERO };
+	int i, timeout, err;
+
+	for (i = 0; i < 2; i++) {
+		WRITE_PORT_ULONG(cif->hwport->port[i].data1, 0);
+		WRITE_PORT_ULONG(cif->hwport->port[i].data2, 0);
+	}
+	SET_GRESET(cif->hwport);
+	udelay(100);
+	UNSET_GRESET(cif->hwport);
+	udelay(100);
+
+	for (timeout = 100000; --timeout; udelay(10)) {
+		if (IS_READY(cif->hwport) && !IS_GERR(cif->hwport))
+			break;
+	}
+	if (!timeout) {
+		snd_printk(KERN_ERR
+			   "Riptide: device not ready, audio status: 0x%x "
+			   "ready: %d gerr: %d\n",
+			   READ_AUDIO_STATUS(cif->hwport),
+			   IS_READY(cif->hwport), IS_GERR(cif->hwport));
+		return -EIO;
+	} else {
+		snd_printdd
+			("Riptide: audio status: 0x%x ready: %d gerr: %d\n",
+			 READ_AUDIO_STATUS(cif->hwport),
+			 IS_READY(cif->hwport), IS_GERR(cif->hwport));
+	}
+
+	SEND_GETV(cif, &firmware.ret);
+	snd_printdd("Firmware version: ASIC: %d CODEC %d AUXDSP %d PROG %d\n",
+		    firmware.firmware.ASIC, firmware.firmware.CODEC,
+		    firmware.firmware.AUXDSP, firmware.firmware.PROG);
+
+	if (!chip)
+		return 1;
+
+	for (i = 0; i < FIRMWARE_VERSIONS; i++) {
+		if (!memcmp(&firmware_versions[i], &firmware, sizeof(firmware)))
+			return 1; /* OK */
+
+	}
+
+	snd_printdd("Writing Firmware\n");
+	if (!chip->fw_entry) {
+		err = request_firmware(&chip->fw_entry, "riptide.hex",
+				       &chip->pci->dev);
+		if (err) {
+			snd_printk(KERN_ERR
+				   "Riptide: Firmware not available %d\n", err);
+			return -EIO;
+		}
+	}
+	err = loadfirmware(cif, chip->fw_entry->data, chip->fw_entry->size);
+	if (err) {
+		snd_printk(KERN_ERR
+			   "Riptide: Could not load firmware %d\n", err);
+		return err;
+	}
+
+	chip->firmware = firmware;
+
+	return 1; /* OK */
+}
+
+static int riptide_reset(struct cmdif *cif, struct snd_riptide *chip)
+{
+	union cmdret rptr = CMDRET_ZERO;
+	int err, tries;
+
+	if (!cif)
+		return -EINVAL;
+
+	cif->cmdcnt = 0;
+	cif->cmdtime = 0;
+	cif->cmdtimemax = 0;
+	cif->cmdtimemin = 0xffffffff;
+	cif->errcnt = 0;
+	cif->is_reset = 0;
+
+	tries = RESET_TRIES;
+	do {
+		err = try_to_load_firmware(cif, chip);
+		if (err < 0)
+			return err;
+	} while (!err && --tries);
+
+	SEND_SACR(cif, 0, AC97_RESET);
+	SEND_RACR(cif, AC97_RESET, &rptr);
+	snd_printdd("AC97: 0x%x 0x%x\n", rptr.retlongs[0], rptr.retlongs[1]);
+
+	SEND_PLST(cif, 0);
+	SEND_SLST(cif, 0);
+	SEND_DLST(cif, 0);
+	SEND_ALST(cif, 0);
+	SEND_KDMA(cif);
+
+	writearm(cif, 0x301F8, 1, 1);
+	writearm(cif, 0x301F4, 1, 1);
+
+	SEND_LSEL(cif, MODEM_CMD, 0, 0, MODEM_INTDEC, MODEM_MERGER,
+		  MODEM_SPLITTER, MODEM_MIXER);
+	setmixer(cif, MODEM_MIXER, 0x7fff, 0x7fff);
+	alloclbuspath(cif, ARM2LBUS_FIFO13, lbus_play_modem, NULL, NULL);
+
+	SEND_LSEL(cif, FM_CMD, 0, 0, FM_INTDEC, FM_MERGER, FM_SPLITTER,
+		  FM_MIXER);
+	setmixer(cif, FM_MIXER, 0x7fff, 0x7fff);
+	writearm(cif, 0x30648 + FM_MIXER * 4, 0x01, 0x00000005);
+	writearm(cif, 0x301A8, 0x02, 0x00000002);
+	writearm(cif, 0x30264, 0x08, 0xffffffff);
+	alloclbuspath(cif, OPL3_SAMPLE, lbus_play_opl3, NULL, NULL);
+
+	SEND_SSRC(cif, I2S_INTDEC, 48000,
+		  ((u32) I2S_RATE * 65536) / 48000,
+		  ((u32) I2S_RATE * 65536) % 48000);
+	SEND_LSEL(cif, I2S_CMD0, 0, 0, I2S_INTDEC, I2S_MERGER, I2S_SPLITTER,
+		  I2S_MIXER);
+	SEND_SI2S(cif, 1);
+	alloclbuspath(cif, ARM2LBUS_FIFO0, lbus_play_i2s, NULL, NULL);
+	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_out, NULL, NULL);
+	alloclbuspath(cif, DIGITAL_MIXER_OUT0, lbus_play_outhp, NULL, NULL);
+
+	SET_AIACK(cif->hwport);
+	SET_AIE(cif->hwport);
+	SET_AIACK(cif->hwport);
+	cif->is_reset = 1;
+
+	return 0;
+}
+
+static const struct snd_pcm_hardware snd_riptide_playback = {
+	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
+		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
+	.formats =
+	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
+	    | SNDRV_PCM_FMTBIT_U16_LE,
+	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
+	.rate_min = 5500,
+	.rate_max = 48000,
+	.channels_min = 1,
+	.channels_max = 2,
+	.buffer_bytes_max = (64 * 1024),
+	.period_bytes_min = PAGE_SIZE >> 1,
+	.period_bytes_max = PAGE_SIZE << 8,
+	.periods_min = 2,
+	.periods_max = 64,
+	.fifo_size = 0,
+};
+static const struct snd_pcm_hardware snd_riptide_capture = {
+	.info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
+		 SNDRV_PCM_INFO_BLOCK_TRANSFER |
+		 SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_MMAP_VALID),
+	.formats =
+	    SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8
+	    | SNDRV_PCM_FMTBIT_U16_LE,
+	.rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000,
+	.rate_min = 5500,
+	.rate_max = 48000,
+	.channels_min = 1,
+	.channels_max = 2,
+	.buffer_bytes_max = (64 * 1024),
+	.period_bytes_min = PAGE_SIZE >> 1,
+	.period_bytes_max = PAGE_SIZE << 3,
+	.periods_min = 2,
+	.periods_max = 64,
+	.fifo_size = 0,
+};
+
+static snd_pcm_uframes_t snd_riptide_pointer(struct snd_pcm_substream
+					     *substream)
+{
+	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct pcmhw *data = get_pcmhwdev(substream);
+	struct cmdif *cif = chip->cif;
+	union cmdret rptr = CMDRET_ZERO;
+	snd_pcm_uframes_t ret;
+
+	SEND_GPOS(cif, 0, data->id, &rptr);
+	if (data->size && runtime->period_size) {
+		snd_printdd
+		    ("pointer stream %d position 0x%x(0x%x in buffer) bytes 0x%lx(0x%lx in period) frames\n",
+		     data->id, rptr.retlongs[1], rptr.retlongs[1] % data->size,
+		     bytes_to_frames(runtime, rptr.retlongs[1]),
+		     bytes_to_frames(runtime,
+				     rptr.retlongs[1]) % runtime->period_size);
+		if (rptr.retlongs[1] > data->pointer)
+			ret =
+			    bytes_to_frames(runtime,
+					    rptr.retlongs[1] % data->size);
+		else
+			ret =
+			    bytes_to_frames(runtime,
+					    data->pointer % data->size);
+	} else {
+		snd_printdd("stream not started or strange parms (%d %ld)\n",
+			    data->size, runtime->period_size);
+		ret = bytes_to_frames(runtime, 0);
+	}
+	return ret;
+}
+
+static int snd_riptide_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	int i, j;
+	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
+	struct pcmhw *data = get_pcmhwdev(substream);
+	struct cmdif *cif = chip->cif;
+	union cmdret rptr = CMDRET_ZERO;
+
+	spin_lock(&chip->lock);
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+		if (!(data->state & ST_PLAY)) {
+			SEND_SSTR(cif, data->id, data->sgdlist.addr);
+			SET_AIE(cif->hwport);
+			data->state = ST_PLAY;
+			if (data->mixer != 0xff)
+				setmixer(cif, data->mixer, 0x7fff, 0x7fff);
+			chip->openstreams++;
+			data->oldpos = 0;
+			data->pointer = 0;
+		}
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+		if (data->mixer != 0xff)
+			setmixer(cif, data->mixer, 0, 0);
+		setmixer(cif, data->mixer, 0, 0);
+		SEND_KSTR(cif, data->id);
+		data->state = ST_STOP;
+		chip->openstreams--;
+		j = 0;
+		do {
+			i = rptr.retlongs[1];
+			SEND_GPOS(cif, 0, data->id, &rptr);
+			udelay(1);
+		} while (i != rptr.retlongs[1] && j++ < MAX_WRITE_RETRY);
+		if (j > MAX_WRITE_RETRY)
+			snd_printk(KERN_ERR "Riptide: Could not stop stream!");
+		break;
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		if (!(data->state & ST_PAUSE)) {
+			SEND_PSTR(cif, data->id);
+			data->state |= ST_PAUSE;
+			chip->openstreams--;
+		}
+		break;
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		if (data->state & ST_PAUSE) {
+			SEND_SSTR(cif, data->id, data->sgdlist.addr);
+			data->state &= ~ST_PAUSE;
+			chip->openstreams++;
+		}
+		break;
+	default:
+		spin_unlock(&chip->lock);
+		return -EINVAL;
+	}
+	spin_unlock(&chip->lock);
+	return 0;
+}
+
+static int snd_riptide_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct pcmhw *data = get_pcmhwdev(substream);
+	struct cmdif *cif = chip->cif;
+	unsigned char *lbuspath = NULL;
+	unsigned int rate, channels;
+	int err = 0;
+	snd_pcm_format_t format;
+
+	if (snd_BUG_ON(!cif || !data))
+		return -EINVAL;
+
+	snd_printdd("prepare id %d ch: %d f:0x%x r:%d\n", data->id,
+		    runtime->channels, runtime->format, runtime->rate);
+
+	spin_lock_irq(&chip->lock);
+	channels = runtime->channels;
+	format = runtime->format;
+	rate = runtime->rate;
+	switch (channels) {
+	case 1:
+		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
+			lbuspath = data->paths.noconv;
+		else
+			lbuspath = data->paths.mono;
+		break;
+	case 2:
+		if (rate == 48000 && format == SNDRV_PCM_FORMAT_S16_LE)
+			lbuspath = data->paths.noconv;
+		else
+			lbuspath = data->paths.stereo;
+		break;
+	}
+	snd_printdd("use sgdlist at 0x%p\n",
+		    data->sgdlist.area);
+	if (data->sgdlist.area) {
+		unsigned int i, j, size, pages, f, pt, period;
+		struct sgd *c, *p = NULL;
+
+		size = frames_to_bytes(runtime, runtime->buffer_size);
+		period = frames_to_bytes(runtime, runtime->period_size);
+		f = PAGE_SIZE;
+		while ((size + (f >> 1) - 1) <= (f << 7) && (f << 1) > period)
+			f = f >> 1;
+		pages = DIV_ROUND_UP(size, f);
+		data->size = size;
+		data->pages = pages;
+		snd_printdd
+		    ("create sgd size: 0x%x pages %d of size 0x%x for period 0x%x\n",
+		     size, pages, f, period);
+		pt = 0;
+		j = 0;
+		for (i = 0; i < pages; i++) {
+			unsigned int ofs, addr;
+			c = &data->sgdbuf[i];
+			if (p)
+				p->dwNextLink = cpu_to_le32(data->sgdlist.addr +
+							    (i *
+							     sizeof(struct
+								    sgd)));
+			c->dwNextLink = cpu_to_le32(data->sgdlist.addr);
+			ofs = j << PAGE_SHIFT;
+			addr = snd_pcm_sgbuf_get_addr(substream, ofs) + pt;
+			c->dwSegPtrPhys = cpu_to_le32(addr);
+			pt = (pt + f) % PAGE_SIZE;
+			if (pt == 0)
+				j++;
+			c->dwSegLen = cpu_to_le32(f);
+			c->dwStat_Ctl =
+			    cpu_to_le32(IEOB_ENABLE | IEOS_ENABLE |
+					IEOC_ENABLE);
+			p = c;
+			size -= f;
+		}
+		data->sgdbuf[i].dwSegLen = cpu_to_le32(size);
+	}
+	if (lbuspath && lbuspath != data->lbuspath) {
+		if (data->lbuspath)
+			freelbuspath(cif, data->source, data->lbuspath);
+		alloclbuspath(cif, data->source, lbuspath,
+			      &data->mixer, data->intdec);
+		data->lbuspath = lbuspath;
+		data->rate = 0;
+	}
+	if (data->rate != rate || data->format != format ||
+	    data->channels != channels) {
+		data->rate = rate;
+		data->format = format;
+		data->channels = channels;
+		if (setsampleformat
+		    (cif, data->mixer, data->id, channels, format)
+		    || setsamplerate(cif, data->intdec, rate))
+			err = -EIO;
+	}
+	spin_unlock_irq(&chip->lock);
+	return err;
+}
+
+static int
+snd_riptide_hw_params(struct snd_pcm_substream *substream,
+		      struct snd_pcm_hw_params *hw_params)
+{
+	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
+	struct pcmhw *data = get_pcmhwdev(substream);
+	struct snd_dma_buffer *sgdlist = &data->sgdlist;
+	int err;
+
+	snd_printdd("hw params id %d (sgdlist: 0x%p 0x%lx %d)\n", data->id,
+		    sgdlist->area, (unsigned long)sgdlist->addr,
+		    (int)sgdlist->bytes);
+	if (sgdlist->area)
+		snd_dma_free_pages(sgdlist);
+	if ((err = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV,
+				       snd_dma_pci_data(chip->pci),
+				       sizeof(struct sgd) * (DESC_MAX_MASK + 1),
+				       sgdlist)) < 0) {
+		snd_printk(KERN_ERR "Riptide: failed to alloc %d dma bytes\n",
+			   (int)sizeof(struct sgd) * (DESC_MAX_MASK + 1));
+		return err;
+	}
+	data->sgdbuf = (struct sgd *)sgdlist->area;
+	return snd_pcm_lib_malloc_pages(substream,
+					params_buffer_bytes(hw_params));
+}
+
+static int snd_riptide_hw_free(struct snd_pcm_substream *substream)
+{
+	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
+	struct pcmhw *data = get_pcmhwdev(substream);
+	struct cmdif *cif = chip->cif;
+
+	if (cif && data) {
+		if (data->lbuspath)
+			freelbuspath(cif, data->source, data->lbuspath);
+		data->lbuspath = NULL;
+		data->source = 0xff;
+		data->intdec[0] = 0xff;
+		data->intdec[1] = 0xff;
+
+		if (data->sgdlist.area) {
+			snd_dma_free_pages(&data->sgdlist);
+			data->sgdlist.area = NULL;
+		}
+	}
+	return snd_pcm_lib_free_pages(substream);
+}
+
+static int snd_riptide_playback_open(struct snd_pcm_substream *substream)
+{
+	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct pcmhw *data;
+	int sub_num = substream->number;
+
+	chip->playback_substream[sub_num] = substream;
+	runtime->hw = snd_riptide_playback;
+
+	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
+	if (data == NULL)
+		return -ENOMEM;
+	data->paths = lbus_play_paths[sub_num];
+	data->id = play_ids[sub_num];
+	data->source = play_sources[sub_num];
+	data->intdec[0] = 0xff;
+	data->intdec[1] = 0xff;
+	data->state = ST_STOP;
+	runtime->private_data = data;
+	return snd_pcm_hw_constraint_integer(runtime,
+					     SNDRV_PCM_HW_PARAM_PERIODS);
+}
+
+static int snd_riptide_capture_open(struct snd_pcm_substream *substream)
+{
+	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct pcmhw *data;
+
+	chip->capture_substream = substream;
+	runtime->hw = snd_riptide_capture;
+
+	data = kzalloc(sizeof(struct pcmhw), GFP_KERNEL);
+	if (data == NULL)
+		return -ENOMEM;
+	data->paths = lbus_rec_path;
+	data->id = PADC;
+	data->source = ACLNK2PADC;
+	data->intdec[0] = 0xff;
+	data->intdec[1] = 0xff;
+	data->state = ST_STOP;
+	runtime->private_data = data;
+	return snd_pcm_hw_constraint_integer(runtime,
+					     SNDRV_PCM_HW_PARAM_PERIODS);
+}
+
+static int snd_riptide_playback_close(struct snd_pcm_substream *substream)
+{
+	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
+	struct pcmhw *data = get_pcmhwdev(substream);
+	int sub_num = substream->number;
+
+	substream->runtime->private_data = NULL;
+	chip->playback_substream[sub_num] = NULL;
+	kfree(data);
+	return 0;
+}
+
+static int snd_riptide_capture_close(struct snd_pcm_substream *substream)
+{
+	struct snd_riptide *chip = snd_pcm_substream_chip(substream);
+	struct pcmhw *data = get_pcmhwdev(substream);
+
+	substream->runtime->private_data = NULL;
+	chip->capture_substream = NULL;
+	kfree(data);
+	return 0;
+}
+
+static const struct snd_pcm_ops snd_riptide_playback_ops = {
+	.open = snd_riptide_playback_open,
+	.close = snd_riptide_playback_close,
+	.ioctl = snd_pcm_lib_ioctl,
+	.hw_params = snd_riptide_hw_params,
+	.hw_free = snd_riptide_hw_free,
+	.prepare = snd_riptide_prepare,
+	.page = snd_pcm_sgbuf_ops_page,
+	.trigger = snd_riptide_trigger,
+	.pointer = snd_riptide_pointer,
+};
+static const struct snd_pcm_ops snd_riptide_capture_ops = {
+	.open = snd_riptide_capture_open,
+	.close = snd_riptide_capture_close,
+	.ioctl = snd_pcm_lib_ioctl,
+	.hw_params = snd_riptide_hw_params,
+	.hw_free = snd_riptide_hw_free,
+	.prepare = snd_riptide_prepare,
+	.page = snd_pcm_sgbuf_ops_page,
+	.trigger = snd_riptide_trigger,
+	.pointer = snd_riptide_pointer,
+};
+
+static int snd_riptide_pcm(struct snd_riptide *chip, int device)
+{
+	struct snd_pcm *pcm;
+	int err;
+
+	if ((err =
+	     snd_pcm_new(chip->card, "RIPTIDE", device, PLAYBACK_SUBSTREAMS, 1,
+			 &pcm)) < 0)
+		return err;
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+			&snd_riptide_playback_ops);
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
+			&snd_riptide_capture_ops);
+	pcm->private_data = chip;
+	pcm->info_flags = 0;
+	strcpy(pcm->name, "RIPTIDE");
+	chip->pcm = pcm;
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV_SG,
+					      snd_dma_pci_data(chip->pci),
+					      64 * 1024, 128 * 1024);
+	return 0;
+}
+
+static irqreturn_t
+snd_riptide_interrupt(int irq, void *dev_id)
+{
+	struct snd_riptide *chip = dev_id;
+	struct cmdif *cif = chip->cif;
+
+	if (cif) {
+		chip->received_irqs++;
+		if (IS_EOBIRQ(cif->hwport) || IS_EOSIRQ(cif->hwport) ||
+		    IS_EOCIRQ(cif->hwport)) {
+			chip->handled_irqs++;
+			tasklet_schedule(&chip->riptide_tq);
+		}
+		if (chip->rmidi && IS_MPUIRQ(cif->hwport)) {
+			chip->handled_irqs++;
+			snd_mpu401_uart_interrupt(irq,
+						  chip->rmidi->private_data);
+		}
+		SET_AIACK(cif->hwport);
+	}
+	return IRQ_HANDLED;
+}
+
+static void
+snd_riptide_codec_write(struct snd_ac97 *ac97, unsigned short reg,
+			unsigned short val)
+{
+	struct snd_riptide *chip = ac97->private_data;
+	struct cmdif *cif = chip->cif;
+	union cmdret rptr = CMDRET_ZERO;
+	int i = 0;
+
+	if (snd_BUG_ON(!cif))
+		return;
+
+	snd_printdd("Write AC97 reg 0x%x 0x%x\n", reg, val);
+	do {
+		SEND_SACR(cif, val, reg);
+		SEND_RACR(cif, reg, &rptr);
+	} while (rptr.retwords[1] != val && i++ < MAX_WRITE_RETRY);
+	if (i > MAX_WRITE_RETRY)
+		snd_printdd("Write AC97 reg failed\n");
+}
+
+static unsigned short snd_riptide_codec_read(struct snd_ac97 *ac97,
+					     unsigned short reg)
+{
+	struct snd_riptide *chip = ac97->private_data;
+	struct cmdif *cif = chip->cif;
+	union cmdret rptr = CMDRET_ZERO;
+
+	if (snd_BUG_ON(!cif))
+		return 0;
+
+	if (SEND_RACR(cif, reg, &rptr) != 0)
+		SEND_RACR(cif, reg, &rptr);
+	snd_printdd("Read AC97 reg 0x%x got 0x%x\n", reg, rptr.retwords[1]);
+	return rptr.retwords[1];
+}
+
+static int snd_riptide_initialize(struct snd_riptide *chip)
+{
+	struct cmdif *cif;
+	unsigned int device_id;
+	int err;
+
+	if (snd_BUG_ON(!chip))
+		return -EINVAL;
+
+	cif = chip->cif;
+	if (!cif) {
+		if ((cif = kzalloc(sizeof(struct cmdif), GFP_KERNEL)) == NULL)
+			return -ENOMEM;
+		cif->hwport = (struct riptideport *)chip->port;
+		spin_lock_init(&cif->lock);
+		chip->cif = cif;
+	}
+	cif->is_reset = 0;
+	if ((err = riptide_reset(cif, chip)) != 0)
+		return err;
+	device_id = chip->device_id;
+	switch (device_id) {
+	case 0x4310:
+	case 0x4320:
+	case 0x4330:
+		snd_printdd("Modem enable?\n");
+		SEND_SETDPLL(cif);
+		break;
+	}
+	snd_printdd("Enabling MPU IRQs\n");
+	if (chip->rmidi)
+		SET_EMPUIRQ(cif->hwport);
+	return err;
+}
+
+static int snd_riptide_free(struct snd_riptide *chip)
+{
+	struct cmdif *cif;
+
+	if (!chip)
+		return 0;
+
+	if ((cif = chip->cif)) {
+		SET_GRESET(cif->hwport);
+		udelay(100);
+		UNSET_GRESET(cif->hwport);
+		kfree(chip->cif);
+	}
+	if (chip->irq >= 0)
+		free_irq(chip->irq, chip);
+	release_firmware(chip->fw_entry);
+	release_and_free_resource(chip->res_port);
+	kfree(chip);
+	return 0;
+}
+
+static int snd_riptide_dev_free(struct snd_device *device)
+{
+	struct snd_riptide *chip = device->device_data;
+
+	return snd_riptide_free(chip);
+}
+
+static int
+snd_riptide_create(struct snd_card *card, struct pci_dev *pci,
+		   struct snd_riptide **rchip)
+{
+	struct snd_riptide *chip;
+	struct riptideport *hwport;
+	int err;
+	static struct snd_device_ops ops = {
+		.dev_free = snd_riptide_dev_free,
+	};
+
+	*rchip = NULL;
+	if ((err = pci_enable_device(pci)) < 0)
+		return err;
+	if (!(chip = kzalloc(sizeof(struct snd_riptide), GFP_KERNEL)))
+		return -ENOMEM;
+
+	spin_lock_init(&chip->lock);
+	chip->card = card;
+	chip->pci = pci;
+	chip->irq = -1;
+	chip->openstreams = 0;
+	chip->port = pci_resource_start(pci, 0);
+	chip->received_irqs = 0;
+	chip->handled_irqs = 0;
+	chip->cif = NULL;
+	tasklet_init(&chip->riptide_tq, riptide_handleirq, (unsigned long)chip);
+
+	if ((chip->res_port =
+	     request_region(chip->port, 64, "RIPTIDE")) == NULL) {
+		snd_printk(KERN_ERR
+			   "Riptide: unable to grab region 0x%lx-0x%lx\n",
+			   chip->port, chip->port + 64 - 1);
+		snd_riptide_free(chip);
+		return -EBUSY;
+	}
+	hwport = (struct riptideport *)chip->port;
+	UNSET_AIE(hwport);
+
+	if (request_irq(pci->irq, snd_riptide_interrupt, IRQF_SHARED,
+			KBUILD_MODNAME, chip)) {
+		snd_printk(KERN_ERR "Riptide: unable to grab IRQ %d\n",
+			   pci->irq);
+		snd_riptide_free(chip);
+		return -EBUSY;
+	}
+	chip->irq = pci->irq;
+	chip->device_id = pci->device;
+	pci_set_master(pci);
+	if ((err = snd_riptide_initialize(chip)) < 0) {
+		snd_riptide_free(chip);
+		return err;
+	}
+
+	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) {
+		snd_riptide_free(chip);
+		return err;
+	}
+
+	*rchip = chip;
+	return 0;
+}
+
+static void
+snd_riptide_proc_read(struct snd_info_entry *entry,
+		      struct snd_info_buffer *buffer)
+{
+	struct snd_riptide *chip = entry->private_data;
+	struct pcmhw *data;
+	int i;
+	struct cmdif *cif = NULL;
+	unsigned char p[256];
+	unsigned short rval = 0, lval = 0;
+	unsigned int rate;
+
+	if (!chip)
+		return;
+
+	snd_iprintf(buffer, "%s\n\n", chip->card->longname);
+	snd_iprintf(buffer, "Device ID: 0x%x\nReceived IRQs: (%ld)%ld\nPorts:",
+		    chip->device_id, chip->handled_irqs, chip->received_irqs);
+	for (i = 0; i < 64; i += 4)
+		snd_iprintf(buffer, "%c%02x: %08x",
+			    (i % 16) ? ' ' : '\n', i, inl(chip->port + i));
+	if ((cif = chip->cif)) {
+		snd_iprintf(buffer,
+			    "\nVersion: ASIC: %d CODEC: %d AUXDSP: %d PROG: %d",
+			    chip->firmware.firmware.ASIC,
+			    chip->firmware.firmware.CODEC,
+			    chip->firmware.firmware.AUXDSP,
+			    chip->firmware.firmware.PROG);
+		snd_iprintf(buffer, "\nDigital mixer:");
+		for (i = 0; i < 12; i++) {
+			getmixer(cif, i, &rval, &lval);
+			snd_iprintf(buffer, "\n %d: %d %d", i, rval, lval);
+		}
+		snd_iprintf(buffer,
+			    "\nARM Commands num: %d failed: %d time: %d max: %d min: %d",
+			    cif->cmdcnt, cif->errcnt,
+			    cif->cmdtime, cif->cmdtimemax, cif->cmdtimemin);
+	}
+	snd_iprintf(buffer, "\nOpen streams %d:\n", chip->openstreams);
+	for (i = 0; i < PLAYBACK_SUBSTREAMS; i++) {
+		if (chip->playback_substream[i]
+		    && chip->playback_substream[i]->runtime
+		    && (data =
+			chip->playback_substream[i]->runtime->private_data)) {
+			snd_iprintf(buffer,
+				    "stream: %d mixer: %d source: %d (%d,%d)\n",
+				    data->id, data->mixer, data->source,
+				    data->intdec[0], data->intdec[1]);
+			if (!(getsamplerate(cif, data->intdec, &rate)))
+				snd_iprintf(buffer, "rate: %d\n", rate);
+		}
+	}
+	if (chip->capture_substream
+	    && chip->capture_substream->runtime
+	    && (data = chip->capture_substream->runtime->private_data)) {
+		snd_iprintf(buffer,
+			    "stream: %d mixer: %d source: %d (%d,%d)\n",
+			    data->id, data->mixer,
+			    data->source, data->intdec[0], data->intdec[1]);
+		if (!(getsamplerate(cif, data->intdec, &rate)))
+			snd_iprintf(buffer, "rate: %d\n", rate);
+	}
+	snd_iprintf(buffer, "Paths:\n");
+	i = getpaths(cif, p);
+	while (i >= 2) {
+		i -= 2;
+		snd_iprintf(buffer, "%x->%x ", p[i], p[i + 1]);
+	}
+	snd_iprintf(buffer, "\n");
+}
+
+static void snd_riptide_proc_init(struct snd_riptide *chip)
+{
+	struct snd_info_entry *entry;
+
+	if (!snd_card_proc_new(chip->card, "riptide", &entry))
+		snd_info_set_text_ops(entry, chip, snd_riptide_proc_read);
+}
+
+static int snd_riptide_mixer(struct snd_riptide *chip)
+{
+	struct snd_ac97_bus *pbus;
+	struct snd_ac97_template ac97;
+	int err = 0;
+	static struct snd_ac97_bus_ops ops = {
+		.write = snd_riptide_codec_write,
+		.read = snd_riptide_codec_read,
+	};
+
+	memset(&ac97, 0, sizeof(ac97));
+	ac97.private_data = chip;
+	ac97.scaps = AC97_SCAP_SKIP_MODEM;
+
+	if ((err = snd_ac97_bus(chip->card, 0, &ops, chip, &pbus)) < 0)
+		return err;
+
+	chip->ac97_bus = pbus;
+	ac97.pci = chip->pci;
+	if ((err = snd_ac97_mixer(pbus, &ac97, &chip->ac97)) < 0)
+		return err;
+	return err;
+}
+
+#ifdef SUPPORT_JOYSTICK
+
+static int
+snd_riptide_joystick_probe(struct pci_dev *pci, const struct pci_device_id *id)
+{
+	static int dev;
+	struct gameport *gameport;
+	int ret;
+
+	if (dev >= SNDRV_CARDS)
+		return -ENODEV;
+
+	if (!enable[dev]) {
+		ret = -ENOENT;
+		goto inc_dev;
+	}
+
+	if (!joystick_port[dev]) {
+		ret = 0;
+		goto inc_dev;
+	}
+
+	gameport = gameport_allocate_port();
+	if (!gameport) {
+		ret = -ENOMEM;
+		goto inc_dev;
+	}
+	if (!request_region(joystick_port[dev], 8, "Riptide gameport")) {
+		snd_printk(KERN_WARNING
+			   "Riptide: cannot grab gameport 0x%x\n",
+			   joystick_port[dev]);
+		gameport_free_port(gameport);
+		ret = -EBUSY;
+		goto inc_dev;
+	}
+
+	gameport->io = joystick_port[dev];
+	gameport_register_port(gameport);
+	pci_set_drvdata(pci, gameport);
+
+	ret = 0;
+inc_dev:
+	dev++;
+	return ret;
+}
+
+static void snd_riptide_joystick_remove(struct pci_dev *pci)
+{
+	struct gameport *gameport = pci_get_drvdata(pci);
+	if (gameport) {
+		release_region(gameport->io, 8);
+		gameport_unregister_port(gameport);
+	}
+}
+#endif
+
+static int
+snd_card_riptide_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
+{
+	static int dev;
+	struct snd_card *card;
+	struct snd_riptide *chip;
+	unsigned short val;
+	int err;
+
+	if (dev >= SNDRV_CARDS)
+		return -ENODEV;
+	if (!enable[dev]) {
+		dev++;
+		return -ENOENT;
+	}
+
+	err = snd_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE,
+			   0, &card);
+	if (err < 0)
+		return err;
+	err = snd_riptide_create(card, pci, &chip);
+	if (err < 0)
+		goto error;
+	card->private_data = chip;
+	err = snd_riptide_pcm(chip, 0);
+	if (err < 0)
+		goto error;
+	err = snd_riptide_mixer(chip);
+	if (err < 0)
+		goto error;
+
+	val = LEGACY_ENABLE_ALL;
+	if (opl3_port[dev])
+		val |= LEGACY_ENABLE_FM;
+#ifdef SUPPORT_JOYSTICK
+	if (joystick_port[dev])
+		val |= LEGACY_ENABLE_GAMEPORT;
+#endif
+	if (mpu_port[dev])
+		val |= LEGACY_ENABLE_MPU_INT | LEGACY_ENABLE_MPU;
+	val |= (chip->irq << 4) & 0xf0;
+	pci_write_config_word(chip->pci, PCI_EXT_Legacy_Mask, val);
+	if (mpu_port[dev]) {
+		val = mpu_port[dev];
+		pci_write_config_word(chip->pci, PCI_EXT_MPU_Base, val);
+		err = snd_mpu401_uart_new(card, 0, MPU401_HW_RIPTIDE,
+					  val, MPU401_INFO_IRQ_HOOK, -1,
+					  &chip->rmidi);
+		if (err < 0)
+			snd_printk(KERN_WARNING
+				   "Riptide: Can't Allocate MPU at 0x%x\n",
+				   val);
+		else
+			chip->mpuaddr = val;
+	}
+	if (opl3_port[dev]) {
+		val = opl3_port[dev];
+		pci_write_config_word(chip->pci, PCI_EXT_FM_Base, val);
+		err = snd_opl3_create(card, val, val + 2,
+				      OPL3_HW_RIPTIDE, 0, &chip->opl3);
+		if (err < 0)
+			snd_printk(KERN_WARNING
+				   "Riptide: Can't Allocate OPL3 at 0x%x\n",
+				   val);
+		else {
+			chip->opladdr = val;
+			err = snd_opl3_hwdep_new(chip->opl3, 0, 1, NULL);
+			if (err < 0)
+				snd_printk(KERN_WARNING
+					   "Riptide: Can't Allocate OPL3-HWDEP\n");
+		}
+	}
+#ifdef SUPPORT_JOYSTICK
+	if (joystick_port[dev]) {
+		val = joystick_port[dev];
+		pci_write_config_word(chip->pci, PCI_EXT_Game_Base, val);
+		chip->gameaddr = val;
+	}
+#endif
+
+	strcpy(card->driver, "RIPTIDE");
+	strcpy(card->shortname, "Riptide");
+#ifdef SUPPORT_JOYSTICK
+	snprintf(card->longname, sizeof(card->longname),
+		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x gameport 0x%x",
+		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
+		 chip->opladdr, chip->gameaddr);
+#else
+	snprintf(card->longname, sizeof(card->longname),
+		 "%s at 0x%lx, irq %i mpu 0x%x opl3 0x%x",
+		 card->shortname, chip->port, chip->irq, chip->mpuaddr,
+		 chip->opladdr);
+#endif
+	snd_riptide_proc_init(chip);
+	err = snd_card_register(card);
+	if (err < 0)
+		goto error;
+	pci_set_drvdata(pci, card);
+	dev++;
+	return 0;
+
+ error:
+	snd_card_free(card);
+	return err;
+}
+
+static void snd_card_riptide_remove(struct pci_dev *pci)
+{
+	snd_card_free(pci_get_drvdata(pci));
+}
+
+static struct pci_driver driver = {
+	.name = KBUILD_MODNAME,
+	.id_table = snd_riptide_ids,
+	.probe = snd_card_riptide_probe,
+	.remove = snd_card_riptide_remove,
+	.driver = {
+		.pm = RIPTIDE_PM_OPS,
+	},
+};
+
+#ifdef SUPPORT_JOYSTICK
+static struct pci_driver joystick_driver = {
+	.name = KBUILD_MODNAME "-joystick",
+	.id_table = snd_riptide_joystick_ids,
+	.probe = snd_riptide_joystick_probe,
+	.remove = snd_riptide_joystick_remove,
+};
+#endif
+
+static int __init alsa_card_riptide_init(void)
+{
+	int err;
+	err = pci_register_driver(&driver);
+	if (err < 0)
+		return err;
+#if defined(SUPPORT_JOYSTICK)
+	err = pci_register_driver(&joystick_driver);
+	/* On failure unregister formerly registered audio driver */
+	if (err < 0)
+		pci_unregister_driver(&driver);
+#endif
+	return err;
+}
+
+static void __exit alsa_card_riptide_exit(void)
+{
+	pci_unregister_driver(&driver);
+#if defined(SUPPORT_JOYSTICK)
+	pci_unregister_driver(&joystick_driver);
+#endif
+}
+
+module_init(alsa_card_riptide_init);
+module_exit(alsa_card_riptide_exit);