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/*
**********************************************************************
* ecard.h
* Copyright 1999, 2000 Creative Labs, Inc.
*
**********************************************************************
*
* 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., 675 Mass Ave, Cambridge, MA 02139,
* USA.
*
**********************************************************************
*/
#ifndef _ECARD_H
#define _ECARD_H
#include "8010.h"
#include "hwaccess.h"
#include <linux/init.h>
/* In A1 Silicon, these bits are in the HC register */
#define HOOKN_BIT (1L << 12)
#define HANDN_BIT (1L << 11)
#define PULSEN_BIT (1L << 10)
#define EC_GDI1 (1 << 13)
#define EC_GDI0 (1 << 14)
#define EC_NUM_CONTROL_BITS 20
#define EC_AC3_DATA_SELN 0x0001L
#define EC_EE_DATA_SEL 0x0002L
#define EC_EE_CNTRL_SELN 0x0004L
#define EC_EECLK 0x0008L
#define EC_EECS 0x0010L
#define EC_EESDO 0x0020L
#define EC_TRIM_CSN 0x0040L
#define EC_TRIM_SCLK 0x0080L
#define EC_TRIM_SDATA 0x0100L
#define EC_TRIM_MUTEN 0x0200L
#define EC_ADCCAL 0x0400L
#define EC_ADCRSTN 0x0800L
#define EC_DACCAL 0x1000L
#define EC_DACMUTEN 0x2000L
#define EC_LEDN 0x4000L
#define EC_SPDIF0_SEL_SHIFT 15
#define EC_SPDIF1_SEL_SHIFT 17
#define EC_SPDIF0_SEL_MASK (0x3L << EC_SPDIF0_SEL_SHIFT)
#define EC_SPDIF1_SEL_MASK (0x7L << EC_SPDIF1_SEL_SHIFT)
#define EC_SPDIF0_SELECT(_x) (((_x) << EC_SPDIF0_SEL_SHIFT) & EC_SPDIF0_SEL_MASK)
#define EC_SPDIF1_SELECT(_x) (((_x) << EC_SPDIF1_SEL_SHIFT) & EC_SPDIF1_SEL_MASK)
#define EC_CURRENT_PROM_VERSION 0x01 /* Self-explanatory. This should
* be incremented any time the EEPROM's
* format is changed. */
#define EC_EEPROM_SIZE 0x40 /* ECARD EEPROM has 64 16-bit words */
/* Addresses for special values stored in to EEPROM */
#define EC_PROM_VERSION_ADDR 0x20 /* Address of the current prom version */
#define EC_BOARDREV0_ADDR 0x21 /* LSW of board rev */
#define EC_BOARDREV1_ADDR 0x22 /* MSW of board rev */
#define EC_LAST_PROMFILE_ADDR 0x2f
#define EC_SERIALNUM_ADD 0x30 /* First word of serial number. The number
* can be up to 30 characters in length
* and is stored as a NULL-terminated
* ASCII string. Any unused bytes must be
* filled with zeros */
#define EC_CHECKSUM_ADDR 0x3f /* Location at which checksum is stored */
/* Most of this stuff is pretty self-evident. According to the hardware
* dudes, we need to leave the ADCCAL bit low in order to avoid a DC
* offset problem. Weird.
*/
#define EC_RAW_RUN_MODE (EC_DACMUTEN | EC_ADCRSTN | EC_TRIM_MUTEN | EC_TRIM_CSN)
#define EC_DEFAULT_ADC_GAIN 0xC4C4
#define EC_DEFAULT_SPDIF0_SEL 0x0
#define EC_DEFAULT_SPDIF1_SEL 0x4
#define HC_EA 0x01L
/* ECARD state structure. This structure maintains the state
* for various portions of the the ECARD's onboard hardware.
*/
struct ecard_state {
u32 control_bits;
u16 adc_gain;
u16 mux0_setting;
u16 mux1_setting;
u16 mux2_setting;
};
int emu10k1_ecard_init(struct emu10k1_card *) __devinit;
#endif /* _ECARD_H */
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