omap-dmic.h

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/*
 * omap-dmic.h  --  OMAP Digital Microphone Controller
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef _OMAP_DMIC_H
#define _OMAP_DMIC_H

#define OMAP_DMIC_REVISION_REG      0x00
#define OMAP_DMIC_SYSCONFIG_REG     0x10
#define OMAP_DMIC_IRQSTATUS_RAW_REG 0x24
#define OMAP_DMIC_IRQSTATUS_REG     0x28
#define OMAP_DMIC_IRQENABLE_SET_REG 0x2C
#define OMAP_DMIC_IRQENABLE_CLR_REG 0x30
#define OMAP_DMIC_IRQWAKE_EN_REG    0x34
#define OMAP_DMIC_DMAENABLE_SET_REG 0x38
#define OMAP_DMIC_DMAENABLE_CLR_REG 0x3C
#define OMAP_DMIC_DMAWAKEEN_REG     0x40
#define OMAP_DMIC_CTRL_REG      0x44
#define OMAP_DMIC_DATA_REG      0x48
#define OMAP_DMIC_FIFO_CTRL_REG     0x4C
#define OMAP_DMIC_FIFO_DMIC1R_DATA_REG  0x50
#define OMAP_DMIC_FIFO_DMIC1L_DATA_REG  0x54
#define OMAP_DMIC_FIFO_DMIC2R_DATA_REG  0x58
#define OMAP_DMIC_FIFO_DMIC2L_DATA_REG  0x5C
#define OMAP_DMIC_FIFO_DMIC3R_DATA_REG  0x60
#define OMAP_DMIC_FIFO_DMIC3L_DATA_REG  0x64

/* IRQSTATUS_RAW, IRQSTATUS, IRQENABLE_SET, IRQENABLE_CLR bit fields */
#define OMAP_DMIC_IRQ           (1 << 0)
#define OMAP_DMIC_IRQ_FULL      (1 << 1)
#define OMAP_DMIC_IRQ_ALMST_EMPTY   (1 << 2)
#define OMAP_DMIC_IRQ_EMPTY     (1 << 3)
#define OMAP_DMIC_IRQ_MASK      0x07

/* DMIC_DMAENABLE bit fields */
#define OMAP_DMIC_DMA_ENABLE        0x1

/* DMIC_CTRL bit fields */
#define OMAP_DMIC_UP1_ENABLE        (1 << 0)
#define OMAP_DMIC_UP2_ENABLE        (1 << 1)
#define OMAP_DMIC_UP3_ENABLE        (1 << 2)
#define OMAP_DMIC_UP_ENABLE_MASK    0x7
#define OMAP_DMIC_FORMAT        (1 << 3)
#define OMAP_DMIC_POLAR1        (1 << 4)
#define OMAP_DMIC_POLAR2        (1 << 5)
#define OMAP_DMIC_POLAR3        (1 << 6)
#define OMAP_DMIC_POLAR_MASK        (0x7 << 4)
#define OMAP_DMIC_CLK_DIV(x)        (((x) & 0x7) << 7)
#define OMAP_DMIC_CLK_DIV_MASK      (0x7 << 7)
#define OMAP_DMIC_RESET         (1 << 10)

#define OMAP_DMICOUTFORMAT_LJUST    (0 << 3)
#define OMAP_DMICOUTFORMAT_RJUST    (1 << 3)

/* DMIC_FIFO_CTRL bit fields */
#define OMAP_DMIC_THRES_MAX     0xF

enum omap_dmic_clk {
    OMAP_DMIC_SYSCLK_PAD_CLKS,      /* PAD_CLKS */
    OMAP_DMIC_SYSCLK_SLIMBLUS_CLKS,     /* SLIMBUS_CLK */
    OMAP_DMIC_SYSCLK_SYNC_MUX_CLKS,     /* DMIC_SYNC_MUX_CLK */
    OMAP_DMIC_ABE_DMIC_CLK,         /* abe_dmic_clk */
};

#endif