omap1610_camera_hw.h

Linux Kernel 2.6.9 for OMAP1710

/*
 *  linux/drivers/media/video/omap/omap1610_camera_hw.h
 *
 * Copyright (C) 2004 Texas Instruments Inc
 *
 * 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.
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef OMAP1610_CAMERA_HW_H
#define OMAP1610_CAMERA_HW_H

/*
 * ---------------------------------------------------------------------------
 *  OMAP1610 Camera Interface
 * ---------------------------------------------------------------------------
 */

#ifdef CONFIG_MACH_OMAP_H3
#define CAMERA_BASE          (0x2007d800)
#else
#define CAMERA_BASE          (IO_VIRT + 0x6800)
#endif

#define CAM_CTRLCLOCK_REG    (CAMERA_BASE + 0x00)
#define CAM_IT_STATUS_REG    (CAMERA_BASE + 0x04)
#define CAM_MODE_REG         (CAMERA_BASE + 0x08)
#define CAM_STATUS_REG       (CAMERA_BASE + 0x0C)
#define CAM_CAMDATA_REG      (CAMERA_BASE + 0x10)
#define CAM_GPIO_REG         (CAMERA_BASE + 0x14)
#define CAM_PEAK_CTR_REG     (CAMERA_BASE + 0x18)
#define CAMERA_IOSIZE        0x1C

typedef struct {
        unsigned int ctrlclock;     // 00
        unsigned int it_status;     // 04
        unsigned int mode;          // 08
        unsigned int status;        // 0C
        unsigned int camdata;       // 10
        unsigned int gpio;   	    // 14
        unsigned int peak_counter;  // 18
} camera_regs_t;

/* CTRLCLOCK bit shifts */
#define FOSCMOD_BIT    0
#define FOSCMOD_MASK   (0x7 << FOSCMOD_BIT)
#define   FOSCMOD_12MHz    0x0
#define   FOSCMOD_6MHz     0x2
#define   FOSCMOD_9_6MHz   0x4
#define   FOSCMOD_24MHz    0x5
#define   FOSCMOD_8MHz     0x6
#define   FOSCMOD_TC2_CK2     0x3
#define   FOSCMOD_TC2_CK3     0x1
#define   FOSCMOD_TC2_CK4     0x5
#define   FOSCMOD_TC2_CK8     0x0
#define   FOSCMOD_TC2_CK10     0x4
#define   FOSCMOD_TC2_CK12     0x6
#define   FOSCMOD_TC2_CK16     0x2
#define POLCLK         (1<<3)
#define CAMEXCLK_EN    (1<<4)
#define MCLK_EN        (1<<5)
#define DPLL_EN        (1<<6)
#define LCLK_EN        (1<<7)

/* IT_STATUS bit shifts */
#define V_UP           (1<<0)
#define V_DOWN         (1<<1)
#define H_UP           (1<<2)
#define H_DOWN         (1<<3)
#define FIFO_FULL      (1<<4)
#define DATA_XFER      (1<<5)

/* MODE bit shifts */
#define CAMOSC         (1<<0)
#define IMGSIZE_BIT    1
#define IMGSIZE_MASK   (0x3 << IMGSIZE_BIT)
#define   IMGSIZE_CIF      (0x0 << IMGSIZE_BIT)    /* 352x288 */
#define   IMGSIZE_QCIF     (0x1 << IMGSIZE_BIT)    /* 176x144 */
#define   IMGSIZE_VGA      (0x2 << IMGSIZE_BIT)    /* 640x480 */
#define   IMGSIZE_QVGA     (0x3 << IMGSIZE_BIT)    /* 320x240 */
#define ORDERCAMD      (1<<3)
#define EN_V_UP        (1<<4)
#define EN_V_DOWN      (1<<5)
#define EN_H_UP        (1<<6)
#define EN_H_DOWN      (1<<7)
#define EN_DMA         (1<<8)
#define THRESHOLD      (1<<9)
#define THRESHOLD_BIT  9
#define THRESHOLD_MASK (0x7f<<9)
#define EN_NIRQ        (1<<16)
#define EN_FIFO_FULL   (1<<17)
#define RAZ_FIFO       (1<<18)

/* STATUS bit shifts */
#define VSTATUS        (1<<0)
#define HSTATUS        (1<<1)

/* GPIO bit shifts */
#define CAM_RST        (1<<0)


#define XCLK_6MHZ     6000000
#define XCLK_8MHZ     8000000
#define XCLK_9_6MHZ   9000000
#define XCLK_12MHZ   12000000
#define XCLK_24MHZ   24000000

/* Function prototype */
void omap1610_camera_enable (int);
void omap1610_camera_disable (void);
void omap1610_camera_mode_set (unsigned int mask);
void omap1610_camera_mode_clear (unsigned int mask);
void omap1610_clear_fifo (void);
void omap1610_set_dma_threshold (void);
void omap1610_enable_dma (void);
void omap1610_capture_abort (void);
irqreturn_t omap1610_isr(int, void *, struct pt_regs *);
int omap1610_camera_init (unsigned long *);


#endif /* OMAP1610_CAMERA_HW_H */