linux-imx

/*

 * drivers/media/i2c/smiapp-pll.h

 *

 * Generic driver for SMIA/SMIA++ compliant camera modules

 *

 * Copyright (C) 2012 Nokia Corporation

 * Contact: Sakari Ailus <sakari.ailus@iki.fi>

 *

 * 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.

 */

​

#ifndef SMIAPP_PLL_H

#define SMIAPP_PLL_H

​

/* CSI-2 or CCP-2 */

#define SMIAPP_PLL_BUS_TYPE_CSI2                0x00

#define SMIAPP_PLL_BUS_TYPE_PARALLEL                0x01

​

/* op pix clock is for all lanes in total normally */

#define SMIAPP_PLL_FLAG_OP_PIX_CLOCK_PER_LANE           (1 << 0)

#define SMIAPP_PLL_FLAG_NO_OP_CLOCKS                (1 << 1)

​

struct smiapp_pll_branch {

    uint16_t sys_clk_div;

    uint16_t pix_clk_div;

    uint32_t sys_clk_freq_hz;

    uint32_t pix_clk_freq_hz;

};

​

struct smiapp_pll {

    /* input values */

    uint8_t bus_type;

    union {

        struct {

            uint8_t lanes;

        } csi2;

        struct {

            uint8_t bus_width;

        } parallel;

    };

    unsigned long flags;

    uint8_t binning_horizontal;

    uint8_t binning_vertical;

    uint8_t scale_m;

    uint8_t scale_n;

    uint8_t bits_per_pixel;

    uint32_t link_freq;

    uint32_t ext_clk_freq_hz;

​

    /* output values */

    uint16_t pre_pll_clk_div;

    uint16_t pll_multiplier;

    uint32_t pll_ip_clk_freq_hz;

    uint32_t pll_op_clk_freq_hz;

    struct smiapp_pll_branch vt;

    struct smiapp_pll_branch op;