omap-mcpdm.h
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/*
* omap-mcpdm.h
*
* Copyright (C) 2009 - 2011 Texas Instruments
*
* Contact: Misael Lopez Cruz <misael.lopez@ti.com>
*
* 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.
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
*/
#ifndef __OMAP_MCPDM_H__
#define __OMAP_MCPDM_H__
#define MCPDM_REG_REVISION 0x00
#define MCPDM_REG_SYSCONFIG 0x10
#define MCPDM_REG_IRQSTATUS_RAW 0x24
#define MCPDM_REG_IRQSTATUS 0x28
#define MCPDM_REG_IRQENABLE_SET 0x2C
#define MCPDM_REG_IRQENABLE_CLR 0x30
#define MCPDM_REG_IRQWAKE_EN 0x34
#define MCPDM_REG_DMAENABLE_SET 0x38
#define MCPDM_REG_DMAENABLE_CLR 0x3C
#define MCPDM_REG_DMAWAKEEN 0x40
#define MCPDM_REG_CTRL 0x44
#define MCPDM_REG_DN_DATA 0x48
#define MCPDM_REG_UP_DATA 0x4C
#define MCPDM_REG_FIFO_CTRL_DN 0x50
#define MCPDM_REG_FIFO_CTRL_UP 0x54
#define MCPDM_REG_DN_OFFSET 0x58
/*
* MCPDM_IRQ bit fields
* IRQSTATUS_RAW, IRQSTATUS, IRQENABLE_SET, IRQENABLE_CLR
*/
#define MCPDM_DN_IRQ (1 << 0)
#define MCPDM_DN_IRQ_EMPTY (1 << 1)
#define MCPDM_DN_IRQ_ALMST_EMPTY (1 << 2)
#define MCPDM_DN_IRQ_FULL (1 << 3)
#define MCPDM_UP_IRQ (1 << 8)
#define MCPDM_UP_IRQ_EMPTY (1 << 9)
#define MCPDM_UP_IRQ_ALMST_FULL (1 << 10)
#define MCPDM_UP_IRQ_FULL (1 << 11)
#define MCPDM_DOWNLINK_IRQ_MASK 0x00F
#define MCPDM_UPLINK_IRQ_MASK 0xF00
/*
* MCPDM_DMAENABLE bit fields
*/
#define MCPDM_DMA_DN_ENABLE (1 << 0)
#define MCPDM_DMA_UP_ENABLE (1 << 1)
/*
* MCPDM_CTRL bit fields
*/
#define MCPDM_PDM_UPLINK_EN(x) (1 << (x - 1)) /* ch1 is at bit 0 */
#define MCPDM_PDM_DOWNLINK_EN(x) (1 << (x + 2)) /* ch1 is at bit 3 */
#define MCPDM_PDMOUTFORMAT (1 << 8)
#define MCPDM_CMD_INT (1 << 9)
#define MCPDM_STATUS_INT (1 << 10)
#define MCPDM_SW_UP_RST (1 << 11)
#define MCPDM_SW_DN_RST (1 << 12)
#define MCPDM_WD_EN (1 << 14)
#define MCPDM_PDM_UP_MASK 0x7
#define MCPDM_PDM_DN_MASK (0x1f << 3)
#define MCPDM_PDMOUTFORMAT_LJUST (0 << 8)
#define MCPDM_PDMOUTFORMAT_RJUST (1 << 8)
/*
* MCPDM_FIFO_CTRL bit fields
*/
#define MCPDM_UP_THRES_MAX 0xF
#define MCPDM_DN_THRES_MAX 0xF
/*
* MCPDM_DN_OFFSET bit fields
*/
#define MCPDM_DN_OFST_RX1_EN (1 << 0)
#define MCPDM_DNOFST_RX1(x) ((x & 0x1f) << 1)
#define MCPDM_DN_OFST_RX2_EN (1 << 8)
#define MCPDM_DNOFST_RX2(x) ((x & 0x1f) << 9)
void omap_mcpdm_configure_dn_offsets(struct snd_soc_pcm_runtime *rtd,
u8 rx1, u8 rx2);
#endif /* End of __OMAP_MCPDM_H__ */