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kernel add
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/*
* Copyright (C) STMicroelectronics SA 2014
* Authors: Benjamin Gaignard <benjamin.gaignard@st.com>
* Fabien Dessenne <fabien.dessenne@st.com>
* for STMicroelectronics.
* License terms: GNU General Public License (GPL), version 2
*/
#ifndef _STI_COMPOSITOR_H_
#define _STI_COMPOSITOR_H_
#include <linux/clk.h>
#include <linux/kernel.h>
#include "sti_mixer.h"
#include "sti_plane.h"
#define WAIT_NEXT_VSYNC_MS 50 /*ms*/
#define STI_MAX_MIXER 2
#define STI_MAX_VID 1
enum sti_compositor_subdev_type {
STI_MIXER_MAIN_SUBDEV,
STI_MIXER_AUX_SUBDEV,
STI_GPD_SUBDEV,
STI_VID_SUBDEV,
STI_CURSOR_SUBDEV,
};
struct sti_compositor_subdev_descriptor {
enum sti_compositor_subdev_type type;
int id;
unsigned int offset;
};
/**
* STI Compositor data structure
*
* @nb_subdev: number of subdevices supported by the compositor
* @subdev_desc: subdev list description
*/
#define MAX_SUBDEV 9
struct sti_compositor_data {
unsigned int nb_subdev;
struct sti_compositor_subdev_descriptor subdev_desc[MAX_SUBDEV];
};
/**
* STI Compositor structure
*
* @dev: driver device
* @regs: registers (main)
* @data: device data
* @clk_compo_main: clock for main compo
* @clk_compo_aux: clock for aux compo
* @clk_pix_main: pixel clock for main path
* @clk_pix_aux: pixel clock for aux path
* @rst_main: reset control of the main path
* @rst_aux: reset control of the aux path
* @mixer: array of mixers
* @vid: array of vids
* @vtg_main: vtg for main data path
* @vtg_aux: vtg for auxillary data path
* @vtg_vblank_nb: callback for VTG VSYNC notification
*/
struct sti_compositor {
struct device *dev;
void __iomem *regs;
struct sti_compositor_data data;
struct clk *clk_compo_main;
struct clk *clk_compo_aux;
struct clk *clk_pix_main;
struct clk *clk_pix_aux;
struct reset_control *rst_main;
struct reset_control *rst_aux;
struct sti_mixer *mixer[STI_MAX_MIXER];
struct sti_vid *vid[STI_MAX_VID];
struct sti_vtg *vtg_main;
struct sti_vtg *vtg_aux;
struct notifier_block vtg_vblank_nb;
};
#endif
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