ecard.h
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上传日期:2013-02-24
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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 ECARD's onboard hardware.
- */
- struct ecard_state {
- u32 control_bits;
- u16 adc_gain;
- u16 mux0_setting;
- u16 mux1_setting;
- u16 mux2_setting;
- };
- void emu10k1_ecard_init(struct emu10k1_card *) __devinit;
- #endif /* _ECARD_H */