114 lines
3.9 KiB
C
114 lines
3.9 KiB
C
/*
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**********************************************************************
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* ecard.h
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* Copyright 1999, 2000 Creative Labs, Inc.
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*
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**********************************************************************
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
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* USA.
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*
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**********************************************************************
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*/
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#ifndef _ECARD_H
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#define _ECARD_H
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#include "8010.h"
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#include "hwaccess.h"
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#include <linux/init.h>
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/* In A1 Silicon, these bits are in the HC register */
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#define HOOKN_BIT (1L << 12)
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#define HANDN_BIT (1L << 11)
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#define PULSEN_BIT (1L << 10)
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#define EC_GDI1 (1 << 13)
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#define EC_GDI0 (1 << 14)
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#define EC_NUM_CONTROL_BITS 20
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#define EC_AC3_DATA_SELN 0x0001L
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#define EC_EE_DATA_SEL 0x0002L
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#define EC_EE_CNTRL_SELN 0x0004L
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#define EC_EECLK 0x0008L
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#define EC_EECS 0x0010L
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#define EC_EESDO 0x0020L
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#define EC_TRIM_CSN 0x0040L
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#define EC_TRIM_SCLK 0x0080L
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#define EC_TRIM_SDATA 0x0100L
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#define EC_TRIM_MUTEN 0x0200L
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#define EC_ADCCAL 0x0400L
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#define EC_ADCRSTN 0x0800L
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#define EC_DACCAL 0x1000L
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#define EC_DACMUTEN 0x2000L
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#define EC_LEDN 0x4000L
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#define EC_SPDIF0_SEL_SHIFT 15
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#define EC_SPDIF1_SEL_SHIFT 17
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#define EC_SPDIF0_SEL_MASK (0x3L << EC_SPDIF0_SEL_SHIFT)
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#define EC_SPDIF1_SEL_MASK (0x7L << EC_SPDIF1_SEL_SHIFT)
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#define EC_SPDIF0_SELECT(_x) (((_x) << EC_SPDIF0_SEL_SHIFT) & EC_SPDIF0_SEL_MASK)
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#define EC_SPDIF1_SELECT(_x) (((_x) << EC_SPDIF1_SEL_SHIFT) & EC_SPDIF1_SEL_MASK)
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#define EC_CURRENT_PROM_VERSION 0x01 /* Self-explanatory. This should
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* be incremented any time the EEPROM's
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* format is changed. */
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#define EC_EEPROM_SIZE 0x40 /* ECARD EEPROM has 64 16-bit words */
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/* Addresses for special values stored in to EEPROM */
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#define EC_PROM_VERSION_ADDR 0x20 /* Address of the current prom version */
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#define EC_BOARDREV0_ADDR 0x21 /* LSW of board rev */
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#define EC_BOARDREV1_ADDR 0x22 /* MSW of board rev */
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#define EC_LAST_PROMFILE_ADDR 0x2f
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#define EC_SERIALNUM_ADD 0x30 /* First word of serial number. The number
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* can be up to 30 characters in length
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* and is stored as a NULL-terminated
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* ASCII string. Any unused bytes must be
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* filled with zeros */
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#define EC_CHECKSUM_ADDR 0x3f /* Location at which checksum is stored */
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/* Most of this stuff is pretty self-evident. According to the hardware
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* dudes, we need to leave the ADCCAL bit low in order to avoid a DC
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* offset problem. Weird.
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*/
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#define EC_RAW_RUN_MODE (EC_DACMUTEN | EC_ADCRSTN | EC_TRIM_MUTEN | EC_TRIM_CSN)
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#define EC_DEFAULT_ADC_GAIN 0xC4C4
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#define EC_DEFAULT_SPDIF0_SEL 0x0
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#define EC_DEFAULT_SPDIF1_SEL 0x4
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#define HC_EA 0x01L
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/* ECARD state structure. This structure maintains the state
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* for various portions of the ECARD's onboard hardware.
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*/
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struct ecard_state {
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u32 control_bits;
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u16 adc_gain;
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u16 mux0_setting;
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u16 mux1_setting;
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u16 mux2_setting;
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};
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void emu10k1_ecard_init(struct emu10k1_card *) __devinit;
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#endif /* _ECARD_H */
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