108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
|
/*
|
||
|
|
* 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;
|
||
|
|
|
||
|
|
uint32_t pixel_rate_csi;
|
||
|
|
uint32_t pixel_rate_pixel_array;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct smiapp_pll_branch_limits {
|
||
|
|
uint16_t min_sys_clk_div;
|
||
|
|
uint16_t max_sys_clk_div;
|
||
|
|
uint32_t min_sys_clk_freq_hz;
|
||
|
|
uint32_t max_sys_clk_freq_hz;
|
||
|
|
uint16_t min_pix_clk_div;
|
||
|
|
uint16_t max_pix_clk_div;
|
||
|
|
uint32_t min_pix_clk_freq_hz;
|
||
|
|
uint32_t max_pix_clk_freq_hz;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct smiapp_pll_limits {
|
||
|
|
/* Strict PLL limits */
|
||
|
|
uint32_t min_ext_clk_freq_hz;
|
||
|
|
uint32_t max_ext_clk_freq_hz;
|
||
|
|
uint16_t min_pre_pll_clk_div;
|
||
|
|
uint16_t max_pre_pll_clk_div;
|
||
|
|
uint32_t min_pll_ip_freq_hz;
|
||
|
|
uint32_t max_pll_ip_freq_hz;
|
||
|
|
uint16_t min_pll_multiplier;
|
||
|
|
uint16_t max_pll_multiplier;
|
||
|
|
uint32_t min_pll_op_freq_hz;
|
||
|
|
uint32_t max_pll_op_freq_hz;
|
||
|
|
|
||
|
|
struct smiapp_pll_branch_limits vt;
|
||
|
|
struct smiapp_pll_branch_limits op;
|
||
|
|
|
||
|
|
/* Other relevant limits */
|
||
|
|
uint32_t min_line_length_pck_bin;
|
||
|
|
uint32_t min_line_length_pck;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct device;
|
||
|
|
|
||
|
|
int smiapp_pll_calculate(struct device *dev,
|
||
|
|
const struct smiapp_pll_limits *limits,
|
||
|
|
struct smiapp_pll *pll);
|
||
|
|
|
||
|
|
#endif /* SMIAPP_PLL_H */
|