sound/oss/emu10k1/ecard.h

   1 /*
   2  **********************************************************************
   3  *     ecard.h
   4  *     Copyright 1999, 2000 Creative Labs, Inc.
   5  *
   6  **********************************************************************
   7  *
   8  *     This program is free software; you can redistribute it and/or
   9  *     modify it under the terms of the GNU General Public License as
  10  *     published by the Free Software Foundation; either version 2 of
  11  *     the License, or (at your option) any later version.
  12  *
  13  *     This program is distributed in the hope that it will be useful,
  14  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *     GNU General Public License for more details.
  17  *
  18  *     You should have received a copy of the GNU General Public
  19  *     License along with this program; if not, write to the Free
  20  *     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
  21  *     USA.
  22  *
  23  **********************************************************************
  24  */
  25
  26 #ifndef _ECARD_H
  27 #define _ECARD_H
  28
  29 #include "8010.h"
  30 #include "hwaccess.h"
  31 #include <linux/init.h>
  32
  33 /* In A1 Silicon, these bits are in the HC register */
  34 #define HOOKN_BIT   (1L << 12)
  35 #define HANDN_BIT   (1L << 11)
  36 #define PULSEN_BIT  (1L << 10)
  37
  38 #define EC_GDI1 (1 << 13)
  39 #define EC_GDI0 (1 << 14)
  40
  41 #define EC_NUM_CONTROL_BITS 20
  42
  43 #define EC_AC3_DATA_SELN  0x0001L
  44 #define EC_EE_DATA_SEL    0x0002L
  45 #define EC_EE_CNTRL_SELN  0x0004L
  46 #define EC_EECLK          0x0008L
  47 #define EC_EECS           0x0010L
  48 #define EC_EESDO          0x0020L
  49 #define EC_TRIM_CSN       0x0040L
  50 #define EC_TRIM_SCLK      0x0080L
  51 #define EC_TRIM_SDATA     0x0100L
  52 #define EC_TRIM_MUTEN     0x0200L
  53 #define EC_ADCCAL         0x0400L
  54 #define EC_ADCRSTN        0x0800L
  55 #define EC_DACCAL         0x1000L
  56 #define EC_DACMUTEN       0x2000L
  57 #define EC_LEDN           0x4000L
  58
  59 #define EC_SPDIF0_SEL_SHIFT     15
  60 #define EC_SPDIF1_SEL_SHIFT     17
  61 #define EC_SPDIF0_SEL_MASK      (0x3L << EC_SPDIF0_SEL_SHIFT)
  62 #define EC_SPDIF1_SEL_MASK      (0x7L << EC_SPDIF1_SEL_SHIFT)
  63 #define EC_SPDIF0_SELECT(_x) (((_x) << EC_SPDIF0_SEL_SHIFT) & EC_SPDIF0_SEL_MASK)
  64 #define EC_SPDIF1_SELECT(_x) (((_x) << EC_SPDIF1_SEL_SHIFT) & EC_SPDIF1_SEL_MASK)
  65 #define EC_CURRENT_PROM_VERSION 0x01 /* Self-explanatory.  This should
  66                                       * be incremented any time the EEPROM's
  67                                       * format is changed.  */
  68
  69 #define EC_EEPROM_SIZE          0x40 /* ECARD EEPROM has 64 16-bit words */
  70
  71 /* Addresses for special values stored in to EEPROM */
  72 #define EC_PROM_VERSION_ADDR    0x20    /* Address of the current prom version */
  73 #define EC_BOARDREV0_ADDR       0x21    /* LSW of board rev */
  74 #define EC_BOARDREV1_ADDR       0x22    /* MSW of board rev */
  75
  76 #define EC_LAST_PROMFILE_ADDR   0x2f
  77
  78 #define EC_SERIALNUM_ADD        0x30    /* First word of serial number.  The number
  79                                          * can be up to 30 characters in length
  80                                          * and is stored as a NULL-terminated
  81                                          * ASCII string.  Any unused bytes must be
  82                                          * filled with zeros */
  83 #define EC_CHECKSUM_ADDR        0x3f    /* Location at which checksum is stored */
  84
  85
  86
  87 /* Most of this stuff is pretty self-evident.  According to the hardware
  88  * dudes, we need to leave the ADCCAL bit low in order to avoid a DC
  89  * offset problem.  Weird.
  90  */
  91 #define EC_RAW_RUN_MODE (EC_DACMUTEN | EC_ADCRSTN | EC_TRIM_MUTEN | EC_TRIM_CSN)
  92
  93
  94 #define EC_DEFAULT_ADC_GAIN   0xC4C4
  95 #define EC_DEFAULT_SPDIF0_SEL 0x0
  96 #define EC_DEFAULT_SPDIF1_SEL 0x4
  97
  98 #define HC_EA 0x01L
  99
 100 /* ECARD state structure.  This structure maintains the state
 101  * for various portions of the ECARD's onboard hardware.
 102  */
 103 struct ecard_state {
 104         u32 control_bits;
 105         u16 adc_gain;
 106         u16 mux0_setting;
 107         u16 mux1_setting;
 108         u16 mux2_setting;
 109 };
 110
 111 void emu10k1_ecard_init(struct emu10k1_card *) __devinit;
 112
 113 #endif /* _ECARD_H */