kirkwood.h

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/*
 * kirkwood.h
 *
 * (c) 2010 Arnaud Patard <[email protected]>
 *
 *  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.
 */

#ifndef _KIRKWOOD_AUDIO_H
#define _KIRKWOOD_AUDIO_H

#define KIRKWOOD_RECORD_WIN         0
#define KIRKWOOD_PLAYBACK_WIN           1
#define KIRKWOOD_MAX_AUDIO_WIN          2

#define KIRKWOOD_AUDIO_WIN_BASE_REG(win)    (0xA00 + ((win)<<3))
#define KIRKWOOD_AUDIO_WIN_CTRL_REG(win)    (0xA04 + ((win)<<3))


#define KIRKWOOD_RECCTL         0x1000
#define KIRKWOOD_RECCTL_SPDIF_EN        (1<<11)
#define KIRKWOOD_RECCTL_I2S_EN          (1<<10)
#define KIRKWOOD_RECCTL_PAUSE           (1<<9)
#define KIRKWOOD_RECCTL_MUTE            (1<<8)
#define KIRKWOOD_RECCTL_BURST_MASK      (3<<5)
#define KIRKWOOD_RECCTL_BURST_128       (2<<5)
#define KIRKWOOD_RECCTL_BURST_32        (1<<5)
#define KIRKWOOD_RECCTL_MONO            (1<<4)
#define KIRKWOOD_RECCTL_MONO_CHAN_RIGHT (1<<3)
#define KIRKWOOD_RECCTL_MONO_CHAN_LEFT      (0<<3)
#define KIRKWOOD_RECCTL_SIZE_MASK       (7<<0)
#define KIRKWOOD_RECCTL_SIZE_16     (7<<0)
#define KIRKWOOD_RECCTL_SIZE_16_C       (3<<0)
#define KIRKWOOD_RECCTL_SIZE_20     (2<<0)
#define KIRKWOOD_RECCTL_SIZE_24     (1<<0)
#define KIRKWOOD_RECCTL_SIZE_32     (0<<0)

#define KIRKWOOD_REC_BUF_ADDR           0x1004
#define KIRKWOOD_REC_BUF_SIZE           0x1008
#define KIRKWOOD_REC_BYTE_COUNT         0x100C

#define KIRKWOOD_PLAYCTL            0x1100
#define KIRKWOOD_PLAYCTL_PLAY_BUSY      (1<<16)
#define KIRKWOOD_PLAYCTL_BURST_MASK     (3<<11)
#define KIRKWOOD_PLAYCTL_BURST_128      (2<<11)
#define KIRKWOOD_PLAYCTL_BURST_32       (1<<11)
#define KIRKWOOD_PLAYCTL_PAUSE          (1<<9)
#define KIRKWOOD_PLAYCTL_SPDIF_MUTE     (1<<8)
#define KIRKWOOD_PLAYCTL_MONO_MASK      (3<<5)
#define KIRKWOOD_PLAYCTL_MONO_BOTH      (3<<5)
#define KIRKWOOD_PLAYCTL_MONO_OFF       (0<<5)
#define KIRKWOOD_PLAYCTL_I2S_MUTE       (1<<7)
#define KIRKWOOD_PLAYCTL_SPDIF_EN       (1<<4)
#define KIRKWOOD_PLAYCTL_I2S_EN     (1<<3)
#define KIRKWOOD_PLAYCTL_SIZE_MASK      (7<<0)
#define KIRKWOOD_PLAYCTL_SIZE_16        (7<<0)
#define KIRKWOOD_PLAYCTL_SIZE_16_C      (3<<0)
#define KIRKWOOD_PLAYCTL_SIZE_20        (2<<0)
#define KIRKWOOD_PLAYCTL_SIZE_24        (1<<0)
#define KIRKWOOD_PLAYCTL_SIZE_32        (0<<0)

#define KIRKWOOD_PLAY_BUF_ADDR          0x1104
#define KIRKWOOD_PLAY_BUF_SIZE          0x1108
#define KIRKWOOD_PLAY_BYTE_COUNT        0x110C

#define KIRKWOOD_DCO_CTL            0x1204
#define KIRKWOOD_DCO_CTL_OFFSET_MASK        (0xFFF<<2)
#define KIRKWOOD_DCO_CTL_OFFSET_0       (0x800<<2)
#define KIRKWOOD_DCO_CTL_FREQ_MASK      (3<<0)
#define KIRKWOOD_DCO_CTL_FREQ_11        (0<<0)
#define KIRKWOOD_DCO_CTL_FREQ_12        (1<<0)
#define KIRKWOOD_DCO_CTL_FREQ_24        (2<<0)

#define KIRKWOOD_DCO_SPCR_STATUS        0x120c
#define KIRKWOOD_DCO_SPCR_STATUS_DCO_LOCK   (1<<16)

#define KIRKWOOD_ERR_CAUSE          0x1300
#define KIRKWOOD_ERR_MASK           0x1304

#define KIRKWOOD_INT_CAUSE          0x1308
#define KIRKWOOD_INT_MASK           0x130C
#define KIRKWOOD_INT_CAUSE_PLAY_BYTES       (1<<14)
#define KIRKWOOD_INT_CAUSE_REC_BYTES        (1<<13)
#define KIRKWOOD_INT_CAUSE_DMA_PLAY_END (1<<7)
#define KIRKWOOD_INT_CAUSE_DMA_PLAY_3Q      (1<<6)
#define KIRKWOOD_INT_CAUSE_DMA_PLAY_HALF    (1<<5)
#define KIRKWOOD_INT_CAUSE_DMA_PLAY_1Q      (1<<4)
#define KIRKWOOD_INT_CAUSE_DMA_REC_END      (1<<3)
#define KIRKWOOD_INT_CAUSE_DMA_REC_3Q       (1<<2)
#define KIRKWOOD_INT_CAUSE_DMA_REC_HALF (1<<1)
#define KIRKWOOD_INT_CAUSE_DMA_REC_1Q       (1<<0)

#define KIRKWOOD_REC_BYTE_INT_COUNT     0x1310
#define KIRKWOOD_PLAY_BYTE_INT_COUNT        0x1314
#define KIRKWOOD_BYTE_INT_COUNT_MASK        0xffffff

#define KIRKWOOD_I2S_PLAYCTL            0x2508
#define KIRKWOOD_I2S_RECCTL         0x2408
#define KIRKWOOD_I2S_CTL_JUST_MASK      (0xf<<26)
#define KIRKWOOD_I2S_CTL_LJ         (0<<26)
#define KIRKWOOD_I2S_CTL_I2S            (5<<26)
#define KIRKWOOD_I2S_CTL_RJ         (8<<26)
#define KIRKWOOD_I2S_CTL_SIZE_MASK      (3<<30)
#define KIRKWOOD_I2S_CTL_SIZE_16        (3<<30)
#define KIRKWOOD_I2S_CTL_SIZE_20        (2<<30)
#define KIRKWOOD_I2S_CTL_SIZE_24        (1<<30)
#define KIRKWOOD_I2S_CTL_SIZE_32        (0<<30)

#define KIRKWOOD_AUDIO_BUF_MAX          (16*1024*1024)

/* Theses values come from the marvell alsa driver */
/* need to find where they come from               */
#define KIRKWOOD_SND_MIN_PERIODS        8
#define KIRKWOOD_SND_MAX_PERIODS        16
#define KIRKWOOD_SND_MIN_PERIOD_BYTES       0x4000
#define KIRKWOOD_SND_MAX_PERIOD_BYTES       0x4000

struct kirkwood_dma_data {
    struct resource *mem;
    void __iomem *io;
    int irq;
    int burst;
    struct clk *clk;
};

#endif