root/sound/soc/kirkwood/kirkwood.h
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * kirkwood.h
 *
 * (c) 2010 Arnaud Patard <apatard@mandriva.com>
 */

#ifndef _KIRKWOOD_AUDIO_H
#define _KIRKWOOD_AUDIO_H

#define DRV_NAME        "mvebu-audio"

#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_RECCTL_ENABLE_MASK             (KIRKWOOD_RECCTL_SPDIF_EN | \
                                                 KIRKWOOD_RECCTL_I2S_EN)

#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_PLAYCTL_ENABLE_MASK            (KIRKWOOD_PLAYCTL_SPDIF_EN | \
                                                 KIRKWOOD_PLAYCTL_I2S_EN)

#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_CLOCKS_CTRL                    0x1230
#define KIRKWOOD_MCLK_SOURCE_MASK               (3<<0)
#define KIRKWOOD_MCLK_SOURCE_DCO                (0<<0)
#define KIRKWOOD_MCLK_SOURCE_EXTCLK             (3<<0)

#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                2
#define KIRKWOOD_SND_MAX_PERIODS                16
#define KIRKWOOD_SND_MIN_PERIOD_BYTES           256
#define KIRKWOOD_SND_MAX_PERIOD_BYTES           0x8000
#define KIRKWOOD_SND_MAX_BUFFER_BYTES           (KIRKWOOD_SND_MAX_PERIOD_BYTES \
                                                 * KIRKWOOD_SND_MAX_PERIODS)

struct kirkwood_dma_data {
        void __iomem *io;
        void __iomem *pll_config;
        void __iomem *soc_control;
        struct clk *clk;
        struct clk *extclk;
        uint32_t ctl_play;
        uint32_t ctl_rec;
        struct snd_pcm_substream *substream_play;
        struct snd_pcm_substream *substream_rec;
        int irq;
        int burst;
};

extern const struct snd_soc_component_driver kirkwood_soc_component;

#endif