Imported Upstream version 4.2-build2006upstream/4.2-build2006upstream

1 files changed, 377 insertions, 0 deletions

diff --git a/kernel/drv/oss_envy24/envy24_ews88d.c b/kernel/drv/oss_envy24/envy24_ews88d.c
new file mode 100644
index 0000000..c68be60
--- /dev/null
+++ b/kernel/drv/oss_envy24/envy24_ews88d.c
@@ -0,0 +1,377 @@
+/*
+ * Purpose: Card specific routines for Terratec EWS88D.
+ */
+/*
+ *
+ * This file is part of Open Sound System.
+ *
+ * Copyright (C) 4Front Technologies 1996-2008.
+ *
+ * This this source file is released under GPL v2 license (no other versions).
+ * See the COPYING file included in the main directory of this source
+ * distribution for the license terms and conditions.
+ *
+ */
+
+#include "oss_config.h"
+#include "ac97.h"
+#include "envy24.h"
+
+#if 0
+# define PRT_STATUS(v) outb(v&0xff, 0x378)
+#else
+# define PRT_STATUS(v)
+#endif
+
+/* PCF8575 pin assignment  (default 0xffff) */
+#define PCF_SPDIN_SELECT	0x0001	/* 0=optical 1=coax */
+#define PCF_OPTOUT		0x0002	/* 0=SPDIF 1=ADAT */
+#define PCF_CLOCKSRC		0x0004	/* 0=ADAT 1=SPDIF */
+#define PCF_ADATEN		0x0008	/* 0=ADAT disabled 1=ADAT enabled */
+#define PCF_ADATLOOP_		0x0010	/* 0=ADAT in->out loop, 1=no loop */
+#define PCF_CS8414_ERF_		0x0020	/* Inverted CS8414 ERF */
+#define PCF_SPDIF_ERR		0x0040	/* OR'ed from CS8414 E0..E2 */
+#define PCF_ADAT_ERROR		0x0080	/* ADAT error input */
+
+extern int envy24_gain_sliders;
+extern int envy24_virtualout;
+extern int envy24_zerolatency;	/* Testing in progress */
+/*
+ * Terratec stuff
+ */
+
+/*=============================================================================
+  Function    : IIC_GetSDA
+-------------------------------------------------------------------------------
+  Description : 
+  Returns     : unsigned char  -> 
+  Parameters  : unsigned long dwPortAddr -> 
+-------------------------------------------------------------------------------
+  Notes       : 
+=============================================================================*/
+static __inline__ unsigned char
+IIC_GetSDA (envy24_devc * devc, unsigned long dwPortAddr)
+{
+
+  unsigned char bReg, bSDA;
+
+  /* FMB TEST: RW line */
+  /* set write mask */
+  bReg = ~(0x08);		/* writeable */
+  envy24_write_cci (devc, 0x21, bReg);
+
+  /* set RW line LOW */
+  bReg = 0;			/* writeable */
+  envy24_write_cci (devc, 0x20, bReg);
+
+  /* Set direction: SDA to input and SCL to output */
+  bReg = envy24_read_cci (devc, 0x22);
+  bReg |= 0x20;			/* SCL output = 1 */
+  bReg &= ~0x10;		/* SDA input  = 0 */
+  envy24_write_cci (devc, 0x22, bReg);
+
+  /* Get SDA line state */
+  bSDA = envy24_read_cci (devc, 0x20);
+
+  /* set RW line HIGH */
+  bReg = 0x08;			/* writeable */
+  envy24_write_cci (devc, 0x20, bReg);
+
+  return 1;
+  /* return ((bSDA & 0x10) == 0x10); */
+
+}
+
+/*=============================================================================
+  Function    : IIC_SetIic
+-------------------------------------------------------------------------------
+  Description : 
+  Returns     : void  -> 
+  Parameters  : unsigned int dwPortAddr -> 
+              : unsigned char fSDA -> 
+              : unsigned char fSCL -> 
+-------------------------------------------------------------------------------
+  Notes       : 
+=============================================================================*/
+static __inline__ void
+IIC_SetIic (envy24_devc * devc, unsigned int dwPortAddr, unsigned char fSDA,
+	    unsigned char fSCL)
+{
+  unsigned char bReg;
+
+  /* Set direction: SDA and SCL to output */
+  bReg = envy24_read_cci (devc, 0x22);
+  bReg |= (0x20 | 0x10);	/* 1 -> output */
+  envy24_write_cci (devc, 0x22, bReg);
+
+  /* set write mask */
+  bReg = ~(0x20 | 0x10);	/* writeable */
+  envy24_write_cci (devc, 0x21, bReg);
+
+  /* Set line state */
+  /* FMB TEST: RW line */
+  bReg = 0x08;
+/*	bReg = 0; */
+  if (fSDA)
+    bReg += 0x10;
+  if (fSCL)
+    bReg += 0x20;
+  envy24_write_cci (devc, 0x20, bReg);
+
+}
+
+/*=============================================================================
+  Function    : IIC_Start
+-------------------------------------------------------------------------------
+  Description : 
+  Returns     : void  -> 
+  Parameters  : unsigned int dwPortAddr -> 
+-------------------------------------------------------------------------------
+  Notes       : 
+=============================================================================*/
+static __inline__ void
+IIC_Start (envy24_devc * devc, unsigned int dwPortAddr)
+{
+  /* falling edge of SDA while SCL is HIGH */
+  IIC_SetIic (devc, dwPortAddr, 1, 1);
+  IIC_SetIic (devc, dwPortAddr, 0, 1);
+}
+
+/*=============================================================================
+  Function    : IIC_Stop  
+-------------------------------------------------------------------------------
+  Description : 
+  Returns     : void -> 
+  Parameters  : unsigned int dwPortAddr -> 
+-------------------------------------------------------------------------------
+  Notes       : 
+=============================================================================*/
+static __inline__ void
+IIC_Stop (envy24_devc * devc, unsigned int dwPortAddr)
+{
+  /* rising edge of SDA while SCL is HIGH */
+  IIC_SetIic (devc, dwPortAddr, 0, 1);
+  IIC_SetIic (devc, dwPortAddr, 1, 1);
+}
+
+
+/*=============================================================================
+  Function    : IIC_SendByte
+-------------------------------------------------------------------------------
+  Description : 
+  Returns     : unsigned char -> 
+  Parameters  : unsigned int dwPortAddr -> 
+              : unsigned char bByte -> 
+-------------------------------------------------------------------------------
+  Notes       : 
+=============================================================================*/
+/*__inline  */
+static unsigned char
+IIC_SendByte (envy24_devc * devc, unsigned int dwPortAddr,
+	      unsigned char bByte)
+{
+  unsigned char bDataBit, bAck;
+  int i;
+
+  for (i = 7; i >= 0; i--)	/* send byte (MSB first) */
+    {
+      bDataBit = (bByte >> i) & 0x01;
+
+      IIC_SetIic (devc, dwPortAddr, bDataBit, 0);
+      IIC_SetIic (devc, dwPortAddr, bDataBit, 1);
+    }				/* end for i */
+
+  IIC_SetIic (devc, dwPortAddr, 1, 0);
+
+  /* Get acknowledge */
+  IIC_SetIic (devc, dwPortAddr, 1, 1);
+  bAck = IIC_GetSDA (devc, dwPortAddr);
+  /* FMB this is a start condition but never mind */
+  IIC_SetIic (devc, dwPortAddr, 0, 0);
+  return 1;
+  /* return (!bAck); *//* bAck = 0 --> success */
+}
+
+static unsigned char
+IIC_WriteWord (envy24_devc * devc, int dwPortAddr, unsigned char bIicAddress,
+	       unsigned short bByte)
+{
+  IIC_Start (devc, dwPortAddr);
+
+  /* send IIC address and data byte */
+  if (!IIC_SendByte (devc, dwPortAddr, bIicAddress))
+    {
+      cmn_err (CE_CONT, "IIC_SendByte 1 failed\n");
+      goto FAILED;
+    }
+  if (!IIC_SendByte (devc, dwPortAddr, bByte & 0xff))
+    {
+      cmn_err (CE_CONT, "IIC_SendByte 3 failed\n");
+      goto FAILED;
+    }
+  if (!IIC_SendByte (devc, dwPortAddr, (bByte >> 8) & 0xff))
+    {
+      cmn_err (CE_CONT, "IIC_SendByte 2 failed\n");
+      goto FAILED;
+    }
+
+  IIC_Stop (devc, dwPortAddr);
+  return 1;
+
+FAILED:
+  IIC_Stop (devc, dwPortAddr);
+  return 0;
+}
+
+static void
+ews88d_set_pcf8575 (envy24_devc * devc, unsigned short d)
+{
+  if (!IIC_WriteWord (devc, devc->ccs_base, 0x40, d))
+    {
+      cmn_err (CE_CONT, "IIC_WriteWord failed\n");
+    }
+  devc->gpio_tmp = d;
+}
+
+static void
+ews88d_card_init (envy24_devc * devc)
+{
+  ews88d_set_pcf8575 (devc, 0xffff);
+}
+
+static void
+set_ews88d_speed (envy24_devc * devc)
+{
+  int tmp;
+
+  tmp = devc->speedbits;
+
+  switch (devc->syncsource)
+    {
+    case SYNC_INTERNAL:
+      OUTB (devc->osdev, tmp, devc->mt_base + 0x01);
+      break;
+
+    case SYNC_SPDIF:
+      tmp |= 0x10;
+      OUTB (devc->osdev, tmp, devc->mt_base + 0x01);
+      devc->gpio_tmp &= ~PCF_CLOCKSRC;
+      ews88d_set_pcf8575 (devc, devc->gpio_tmp);
+      break;
+
+    case SYNC_WCLOCK:
+      tmp |= 0x10;
+      OUTB (devc->osdev, tmp, devc->mt_base + 0x01);
+      devc->gpio_tmp |= PCF_CLOCKSRC;
+      ews88d_set_pcf8575 (devc, devc->gpio_tmp);
+      break;
+    }
+
+  if (devc->speed > 48000)
+    {
+      devc->gpio_tmp &= ~PCF_ADATEN;
+      ews88d_set_pcf8575 (devc, devc->gpio_tmp);
+    }
+  else
+    {
+      devc->gpio_tmp |= PCF_ADATEN;
+      ews88d_set_pcf8575 (devc, devc->gpio_tmp);
+    }
+}
+
+static int
+ews88d_mixer_set (int dev, int ctrl, unsigned int cmd, int value)
+{
+  envy24_devc *devc = mixer_devs[dev]->devc;
+
+  if (cmd == SNDCTL_MIX_READ)
+    switch (ctrl)
+      {
+      case 1:
+	return !!(devc->gpio_tmp & PCF_SPDIN_SELECT);
+	break;
+
+      case 2:
+	return !!(devc->gpio_tmp & PCF_OPTOUT);
+	break;
+
+      case 3:
+	return !(devc->gpio_tmp & PCF_ADATLOOP_);
+	break;
+      }
+
+  if (cmd == SNDCTL_MIX_WRITE)
+    switch (ctrl)
+      {
+      case 1:
+	devc->gpio_tmp &= ~PCF_SPDIN_SELECT;
+	if (value)
+	  devc->gpio_tmp |= PCF_SPDIN_SELECT;
+	ews88d_set_pcf8575 (devc, devc->gpio_tmp);
+	return !!(devc->gpio_tmp & PCF_SPDIN_SELECT);
+	break;
+
+      case 2:
+	devc->gpio_tmp &= ~PCF_OPTOUT;
+	if (value)
+	  devc->gpio_tmp |= PCF_OPTOUT;
+	ews88d_set_pcf8575 (devc, devc->gpio_tmp);
+	return !!(devc->gpio_tmp & PCF_OPTOUT);
+	break;
+
+      case 3:
+	devc->gpio_tmp &= ~PCF_ADATLOOP_;
+	if (!value)
+	  devc->gpio_tmp |= PCF_ADATLOOP_;
+	ews88d_set_pcf8575 (devc, devc->gpio_tmp);
+	return !(devc->gpio_tmp & PCF_ADATLOOP_);
+	break;
+      }
+
+  return OSS_EINVAL;
+}
+
+static int
+ews88d_mix_init (envy24_devc * devc, int dev, int group)
+{
+  int err;
+
+  if ((group = mixer_ext_create_group (dev, 0, "ENVY24_EWS88D")) < 0)
+    return group;
+
+  if ((err = mixer_ext_create_control (dev, group,
+				       1, ews88d_mixer_set,
+				       MIXT_ENUM,
+				       "EWS88D_SPDIN", 2,
+				       MIXF_READABLE | MIXF_WRITEABLE)) < 0)
+    return err;
+
+  if ((err = mixer_ext_create_control (dev, group,
+				       2, ews88d_mixer_set,
+				       MIXT_ENUM,
+				       "EWS88D_OPTOUT", 2,
+				       MIXF_READABLE | MIXF_WRITEABLE)) < 0)
+    return err;
+
+  if ((err = mixer_ext_create_control (dev, group,
+				       3, ews88d_mixer_set,
+				       MIXT_ONOFF,
+				       "EWS88D_ADATLOOP", 2,
+				       MIXF_READABLE | MIXF_WRITEABLE)) < 0)
+    return err;
+
+  return 0;
+}
+
+envy24_auxdrv_t ews88d_auxdrv = {
+  ews88d_card_init,
+  ews88d_mix_init,
+  NULL,
+  NULL,
+  NULL,
+  NULL,
+  NULL,
+  set_ews88d_speed,
+  NULL,
+  cs8427_spdif_mixer_init
+};