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Diffstat (limited to 'sound/oss/emu10k1/ecard.h')
| -rw-r--r-- | sound/oss/emu10k1/ecard.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/sound/oss/emu10k1/ecard.h b/sound/oss/emu10k1/ecard.h new file mode 100644 index 000000000000..67aead16e8ec --- /dev/null +++ b/sound/oss/emu10k1/ecard.h @@ -0,0 +1,113 @@ +/* + ********************************************************************** + * 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 */ |