imx_mipi_dsi_bridge.h
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/*
* Copyright 2018 NXP
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __IMX_MIPI_DSIM_BRIDGE_H__
#define __IMX_MIPI_DSIM_BRIDGE_H__
#include <linux/fb.h>
/* video mode */
#define MIPI_DSI_MODE_VIDEO BIT(0)
/* video burst mode */
#define MIPI_DSI_MODE_VIDEO_BURST BIT(1)
/* video pulse mode */
#define MIPI_DSI_MODE_VIDEO_SYNC_PULSE BIT(2)
/* enable auto vertical count mode */
#define MIPI_DSI_MODE_VIDEO_AUTO_VERT BIT(3)
/* enable hsync-end packets in vsync-pulse and v-porch area */
#define MIPI_DSI_MODE_VIDEO_HSE BIT(4)
/* disable hfront-porch area */
#define MIPI_DSI_MODE_VIDEO_HFP BIT(5)
/* disable hback-porch area */
#define MIPI_DSI_MODE_VIDEO_HBP BIT(6)
/* disable hsync-active area */
#define MIPI_DSI_MODE_VIDEO_HSA BIT(7)
/* flush display FIFO on vsync pulse */
#define MIPI_DSI_MODE_VSYNC_FLUSH BIT(8)
/* disable EoT packets in HS mode */
#define MIPI_DSI_MODE_EOT_PACKET BIT(9)
/* device supports non-continuous clock behavior (DSI spec 5.6.1) */
#define MIPI_DSI_CLOCK_NON_CONTINUOUS BIT(10)
/* transmit data in low power */
#define MIPI_DSI_MODE_LPM BIT(11)
#define DSI_CMD_BUF_MAXSIZE (128)
enum mipi_dsi_pixel_format {
MIPI_DSI_FMT_RGB888,
MIPI_DSI_FMT_RGB666,
MIPI_DSI_FMT_RGB666_PACKED,
MIPI_DSI_FMT_RGB565,
};
struct mipi_dsi_client_dev {
unsigned int channel;
unsigned int lanes;
enum mipi_dsi_pixel_format format;
unsigned long mode_flags;
const char *name;
};
struct mipi_dsi_client_driver {
int (*dsi_client_setup)(struct mipi_dsi_client_dev *panel_dev);
const char *name;
};
struct mipi_dsi_bridge_driver {
int (*attach)(struct mipi_dsi_bridge_driver *bridge_driver, struct mipi_dsi_client_dev *dsi_dev);
int (*enable)(struct mipi_dsi_bridge_driver *bridge_driver);
int (*disable)(struct mipi_dsi_bridge_driver *bridge_driver);
int (*mode_set)(struct mipi_dsi_bridge_driver *bridge_driver, struct fb_videomode *pvmode);
int (*pkt_write)(struct mipi_dsi_bridge_driver *bridge_driver, u8 data_type, const u8 *buf, int len);
int (*add_client_driver)(struct mipi_dsi_bridge_driver *bridge_driver, struct mipi_dsi_client_driver *client_driver);
const char *name;
void *driver_private;
};
static inline int mipi_dsi_pixel_format_to_bpp(enum mipi_dsi_pixel_format fmt)
{
switch (fmt) {
case MIPI_DSI_FMT_RGB888:
case MIPI_DSI_FMT_RGB666:
return 24;
case MIPI_DSI_FMT_RGB666_PACKED:
return 18;
case MIPI_DSI_FMT_RGB565:
return 16;
}
return -EINVAL;
}
int imx_mipi_dsi_bridge_attach(struct mipi_dsi_client_dev *dsi_dev);
int imx_mipi_dsi_bridge_mode_set(struct fb_videomode *pvmode);
int imx_mipi_dsi_bridge_enable(void);
int imx_mipi_dsi_bridge_disable(void);
int imx_mipi_dsi_bridge_pkt_write(u8 data_type, const u8 *buf, int len);
int imx_mipi_dsi_bridge_add_client_driver(struct mipi_dsi_client_driver *client_driver);
int imx_mipi_dsi_bridge_register_driver(struct mipi_dsi_bridge_driver *driver);
#endif