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#ifndef __SOUND_CS4231_REGS_H

#define __SOUND_CS4231_REGS_H

/*

 *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>

 *  Definitions for CS4231 & InterWave chips & compatible chips registers

 *

 *

 *   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA

 *

 */

/* IO ports */

#define CS4231P(x)              (c_d_c_CS4231##x)

#define c_d_c_CS4231REGSEL      0

#define c_d_c_CS4231REG         1

#define c_d_c_CS4231STATUS      2

#define c_d_c_CS4231PIO         3

/* codec registers */

#define CS4231_LEFT_INPUT       0x00    /* left input control */

#define CS4231_RIGHT_INPUT      0x01    /* right input control */

#define CS4231_AUX1_LEFT_INPUT  0x02    /* left AUX1 input control */

#define CS4231_AUX1_RIGHT_INPUT 0x03    /* right AUX1 input control */

#define CS4231_AUX2_LEFT_INPUT  0x04    /* left AUX2 input control */

#define CS4231_AUX2_RIGHT_INPUT 0x05    /* right AUX2 input control */

#define CS4231_LEFT_OUTPUT      0x06    /* left output control register */

#define CS4231_RIGHT_OUTPUT     0x07    /* right output control register */

#define CS4231_PLAYBK_FORMAT    0x08    /* clock and data format - playback - bits 7-0 MCE */

#define CS4231_IFACE_CTRL       0x09    /* interface control - bits 7-2 MCE */

#define CS4231_PIN_CTRL         0x0a    /* pin control */

#define CS4231_TEST_INIT        0x0b    /* test and initialization */

#define CS4231_MISC_INFO        0x0c    /* miscellaneaous information */

#define CS4231_LOOPBACK         0x0d    /* loopback control */

#define CS4231_PLY_UPR_CNT      0x0e    /* playback upper base count */

#define CS4231_PLY_LWR_CNT      0x0f    /* playback lower base count */

#define CS4231_ALT_FEATURE_1    0x10    /* alternate #1 feature enable */

#define AD1845_AF1_MIC_LEFT     0x10    /* alternate #1 feature + MIC left */

#define CS4231_ALT_FEATURE_2    0x11    /* alternate #2 feature enable */

#define AD1845_AF2_MIC_RIGHT    0x11    /* alternate #2 feature + MIC right */

#define CS4231_LEFT_LINE_IN     0x12    /* left line input control */

#define CS4231_RIGHT_LINE_IN    0x13    /* right line input control */

#define CS4231_TIMER_LOW        0x14    /* timer low byte */

#define CS4231_TIMER_HIGH       0x15    /* timer high byte */

#define CS4231_LEFT_MIC_INPUT   0x16    /* left MIC input control register (InterWave only) */

#define AD1845_UPR_FREQ_SEL     0x16    /* upper byte of frequency select */

#define CS4231_RIGHT_MIC_INPUT  0x17    /* right MIC input control register (InterWave only) */

#define AD1845_LWR_FREQ_SEL     0x17    /* lower byte of frequency select */

#define CS4236_EXT_REG          0x17    /* extended register access */

#define CS4231_IRQ_STATUS       0x18    /* irq status register */

#define CS4231_LINE_LEFT_OUTPUT 0x19    /* left line output control register (InterWave only) */

#define CS4231_VERSION          0x19    /* CS4231(A) - version values */

#define CS4231_MONO_CTRL        0x1a    /* mono input/output control */

#define CS4231_LINE_RIGHT_OUTPUT 0x1b   /* right line output control register (InterWave only) */

#define AD1845_PWR_DOWN         0x1b    /* power down control */

#define CS4235_LEFT_MASTER      0x1b    /* left master output control */

#define CS4231_REC_FORMAT       0x1c    /* clock and data format - record - bits 7-0 MCE */

#define CS4231_PLY_VAR_FREQ     0x1d    /* playback variable frequency */

#define AD1845_CLOCK            0x1d    /* crystal clock select and total power down */

#define CS4235_RIGHT_MASTER     0x1d    /* right master output control */

#define CS4231_REC_UPR_CNT      0x1e    /* record upper count */

#define CS4231_REC_LWR_CNT      0x1f    /* record lower count */

/* definitions for codec register select port - CODECP( REGSEL ) */

#define CS4231_INIT             0x80    /* CODEC is initializing */

#define CS4231_MCE              0x40    /* mode change enable */

#define CS4231_TRD              0x20    /* transfer request disable */

/* definitions for codec status register - CODECP( STATUS ) */

#define CS4231_GLOBALIRQ        0x01    /* IRQ is active */

/* definitions for codec irq status */

#define CS4231_PLAYBACK_IRQ     0x10

#define CS4231_RECORD_IRQ       0x20

#define CS4231_TIMER_IRQ        0x40

#define CS4231_ALL_IRQS         0x70

#define CS4231_REC_UNDERRUN     0x08

#define CS4231_REC_OVERRUN      0x04

#define CS4231_PLY_OVERRUN      0x02

#define CS4231_PLY_UNDERRUN     0x01

/* definitions for CS4231_LEFT_INPUT and CS4231_RIGHT_INPUT registers */

#define CS4231_ENABLE_MIC_GAIN  0x20

#define CS4231_MIXS_LINE        0x00

#define CS4231_MIXS_AUX1        0x40

#define CS4231_MIXS_MIC         0x80

#define CS4231_MIXS_ALL         0xc0

/* definitions for clock and data format register - CS4231_PLAYBK_FORMAT */

#define CS4231_LINEAR_8         0x00    /* 8-bit unsigned data */

#define CS4231_ALAW_8           0x60    /* 8-bit A-law companded */

#define CS4231_ULAW_8           0x20    /* 8-bit U-law companded */

#define CS4231_LINEAR_16        0x40    /* 16-bit twos complement data - little endian */

#define CS4231_LINEAR_16_BIG    0xc0    /* 16-bit twos complement data - big endian */

#define CS4231_ADPCM_16         0xa0    /* 16-bit ADPCM */

#define CS4231_STEREO           0x10    /* stereo mode */

/* bits 3-1 define frequency divisor */

#define CS4231_XTAL1            0x00    /* 24.576 crystal */

#define CS4231_XTAL2            0x01    /* 16.9344 crystal */

/* definitions for interface control register - CS4231_IFACE_CTRL */

#define CS4231_RECORD_PIO       0x80    /* record PIO enable */

#define CS4231_PLAYBACK_PIO     0x40    /* playback PIO enable */

#define CS4231_CALIB_MODE       0x18    /* calibration mode bits */

#define CS4231_AUTOCALIB        0x08    /* auto calibrate */

#define CS4231_SINGLE_DMA       0x04    /* use single DMA channel */

#define CS4231_RECORD_ENABLE    0x02    /* record enable */

#define CS4231_PLAYBACK_ENABLE  0x01    /* playback enable */

/* definitions for pin control register - CS4231_PIN_CTRL */

#define CS4231_IRQ_ENABLE       0x02    /* enable IRQ */

#define CS4231_XCTL1            0x40    /* external control #1 */

#define CS4231_XCTL0            0x80    /* external control #0 */

/* definitions for test and init register - CS4231_TEST_INIT */

#define CS4231_CALIB_IN_PROGRESS 0x20   /* auto calibrate in progress */

#define CS4231_DMA_REQUEST      0x10    /* DMA request in progress */

/* definitions for misc control register - CS4231_MISC_INFO */

#define CS4231_MODE2            0x40    /* MODE 2 */

#define CS4231_IW_MODE3         0x6c    /* MODE 3 - InterWave enhanced mode */

#define CS4231_4236_MODE3       0xe0    /* MODE 3 - CS4236+ enhanced mode */

/* definitions for alternate feature 1 register - CS4231_ALT_FEATURE_1 */

#define CS4231_DACZ             0x01    /* zero DAC when underrun */

#define CS4231_TIMER_ENABLE     0x40    /* codec timer enable */

#define CS4231_OLB              0x80    /* output level bit */

/* definitions for Extended Registers - CS4236+ */

#define CS4236_REG(i23val)      (((i23val << 2) & 0x10) | ((i23val >> 4) & 0x0f))

#define CS4236_I23VAL(reg)      ((((reg)&0xf) << 4) | (((reg)&0x10) >> 2) | 0x8)

#define CS4236_LEFT_LINE        0x08    /* left LINE alternate volume */

#define CS4236_RIGHT_LINE       0x18    /* right LINE alternate volume */

#define CS4236_LEFT_MIC         0x28    /* left MIC volume */

#define CS4236_RIGHT_MIC        0x38    /* right MIC volume */

#define CS4236_LEFT_MIX_CTRL    0x48    /* synthesis and left input mixer control */

#define CS4236_RIGHT_MIX_CTRL   0x58    /* right input mixer control */

#define CS4236_LEFT_FM          0x68    /* left FM volume */

#define CS4236_RIGHT_FM         0x78    /* right FM volume */

#define CS4236_LEFT_DSP         0x88    /* left DSP serial port volume */

#define CS4236_RIGHT_DSP        0x98    /* right DSP serial port volume */

#define CS4236_RIGHT_LOOPBACK   0xa8    /* right loopback monitor volume */

#define CS4236_DAC_MUTE         0xb8    /* DAC mute and IFSE enable */

#define CS4236_ADC_RATE         0xc8    /* indenpendent ADC sample frequency */

#define CS4236_DAC_RATE         0xd8    /* indenpendent DAC sample frequency */

#define CS4236_LEFT_MASTER      0xe8    /* left master digital audio volume */

#define CS4236_RIGHT_MASTER     0xf8    /* right master digital audio volume */

#define CS4236_LEFT_WAVE        0x0c    /* left wavetable serial port volume */

#define CS4236_RIGHT_WAVE       0x1c    /* right wavetable serial port volume */

#define CS4236_VERSION          0x9c    /* chip version and ID */

#endif /* __SOUND_CS4231_REGS_H */