154 lines
4.4 KiB
C
154 lines
4.4 KiB
C
/*
|
|
* mcpdm.h -- Defines for McPDM driver
|
|
*
|
|
* Author: Jorge Eduardo Candelaria <x0107209@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
|
|
*
|
|
*/
|
|
|
|
/* McPDM registers */
|
|
|
|
#define MCPDM_REVISION 0x00
|
|
#define MCPDM_SYSCONFIG 0x10
|
|
#define MCPDM_IRQSTATUS_RAW 0x24
|
|
#define MCPDM_IRQSTATUS 0x28
|
|
#define MCPDM_IRQENABLE_SET 0x2C
|
|
#define MCPDM_IRQENABLE_CLR 0x30
|
|
#define MCPDM_IRQWAKE_EN 0x34
|
|
#define MCPDM_DMAENABLE_SET 0x38
|
|
#define MCPDM_DMAENABLE_CLR 0x3C
|
|
#define MCPDM_DMAWAKEEN 0x40
|
|
#define MCPDM_CTRL 0x44
|
|
#define MCPDM_DN_DATA 0x48
|
|
#define MCPDM_UP_DATA 0x4C
|
|
#define MCPDM_FIFO_CTRL_DN 0x50
|
|
#define MCPDM_FIFO_CTRL_UP 0x54
|
|
#define MCPDM_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 DMA_DN_ENABLE 0x1
|
|
#define DMA_UP_ENABLE 0x2
|
|
|
|
/*
|
|
* MCPDM_CTRL bit fields
|
|
*/
|
|
|
|
#define PDM_UP1_EN 0x0001
|
|
#define PDM_UP2_EN 0x0002
|
|
#define PDM_UP3_EN 0x0004
|
|
#define PDM_DN1_EN 0x0008
|
|
#define PDM_DN2_EN 0x0010
|
|
#define PDM_DN3_EN 0x0020
|
|
#define PDM_DN4_EN 0x0040
|
|
#define PDM_DN5_EN 0x0080
|
|
#define PDMOUTFORMAT 0x0100
|
|
#define CMD_INT 0x0200
|
|
#define STATUS_INT 0x0400
|
|
#define SW_UP_RST 0x0800
|
|
#define SW_DN_RST 0x1000
|
|
#define PDM_UP_MASK 0x007
|
|
#define PDM_DN_MASK 0x0F8
|
|
#define PDM_CMD_MASK 0x200
|
|
#define PDM_STATUS_MASK 0x400
|
|
|
|
|
|
#define PDMOUTFORMAT_LJUST (0 << 8)
|
|
#define PDMOUTFORMAT_RJUST (1 << 8)
|
|
|
|
/*
|
|
* MCPDM_FIFO_CTRL bit fields
|
|
*/
|
|
|
|
#define UP_THRES_MAX 0xF
|
|
#define DN_THRES_MAX 0xF
|
|
|
|
/*
|
|
* MCPDM_DN_OFFSET bit fields
|
|
*/
|
|
|
|
#define DN_OFST_RX1_EN 0x0001
|
|
#define DN_OFST_RX2_EN 0x0100
|
|
|
|
#define DN_OFST_RX1 1
|
|
#define DN_OFST_RX2 9
|
|
#define DN_OFST_MAX 0x1F
|
|
|
|
#define MCPDM_UPLINK 1
|
|
#define MCPDM_DOWNLINK 2
|
|
|
|
struct omap_mcpdm_link {
|
|
int irq_mask;
|
|
int threshold;
|
|
int format;
|
|
int channels;
|
|
};
|
|
|
|
struct omap_mcpdm_platform_data {
|
|
unsigned long phys_base;
|
|
u16 irq;
|
|
};
|
|
|
|
struct omap_mcpdm {
|
|
struct device *dev;
|
|
unsigned long phys_base;
|
|
void __iomem *io_base;
|
|
u8 free;
|
|
int irq;
|
|
|
|
spinlock_t lock;
|
|
struct omap_mcpdm_platform_data *pdata;
|
|
struct clk *clk;
|
|
struct omap_mcpdm_link *downlink;
|
|
struct omap_mcpdm_link *uplink;
|
|
struct completion irq_completion;
|
|
|
|
int dn_channels;
|
|
int up_channels;
|
|
};
|
|
|
|
extern void omap_mcpdm_start(int stream);
|
|
extern void omap_mcpdm_stop(int stream);
|
|
extern int omap_mcpdm_capture_open(struct omap_mcpdm_link *uplink);
|
|
extern int omap_mcpdm_playback_open(struct omap_mcpdm_link *downlink);
|
|
extern int omap_mcpdm_capture_close(struct omap_mcpdm_link *uplink);
|
|
extern int omap_mcpdm_playback_close(struct omap_mcpdm_link *downlink);
|
|
extern int omap_mcpdm_request(void);
|
|
extern void omap_mcpdm_free(void);
|
|
extern int omap_mcpdm_set_offset(int offset1, int offset2);
|
|
int __devinit omap_mcpdm_probe(struct platform_device *pdev);
|
|
int __devexit omap_mcpdm_remove(struct platform_device *pdev);
|