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 */ 114