78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
|
/* SPDX-License-Identifier: GPL-2.0-only */
|
||
|
|
/* drivers/video/backlight/ili9320.h
|
||
|
|
*
|
||
|
|
* ILI9320 LCD controller driver core.
|
||
|
|
*
|
||
|
|
* Copyright 2007 Simtec Electronics
|
||
|
|
* Ben Dooks <ben@simtec.co.uk>
|
||
|
|
*
|
||
|
|
* http://armlinux.simtec.co.uk/
|
||
|
|
*/
|
||
|
|
|
||
|
|
/* Holder for register and value pairs. */
|
||
|
|
struct ili9320_reg {
|
||
|
|
unsigned short address;
|
||
|
|
unsigned short value;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct ili9320;
|
||
|
|
|
||
|
|
struct ili9320_client {
|
||
|
|
const char *name;
|
||
|
|
int (*init)(struct ili9320 *ili, struct ili9320_platdata *cfg);
|
||
|
|
|
||
|
|
};
|
||
|
|
/* Device attached via an SPI bus. */
|
||
|
|
struct ili9320_spi {
|
||
|
|
struct spi_device *dev;
|
||
|
|
struct spi_message message;
|
||
|
|
struct spi_transfer xfer[2];
|
||
|
|
|
||
|
|
unsigned char id;
|
||
|
|
unsigned char buffer_addr[4];
|
||
|
|
unsigned char buffer_data[4];
|
||
|
|
};
|
||
|
|
|
||
|
|
/* ILI9320 device state. */
|
||
|
|
struct ili9320 {
|
||
|
|
union {
|
||
|
|
struct ili9320_spi spi; /* SPI attachged device. */
|
||
|
|
} access; /* Register access method. */
|
||
|
|
|
||
|
|
struct device *dev;
|
||
|
|
struct lcd_device *lcd; /* LCD device we created. */
|
||
|
|
struct ili9320_client *client;
|
||
|
|
struct ili9320_platdata *platdata;
|
||
|
|
|
||
|
|
int power; /* current power state. */
|
||
|
|
int initialised;
|
||
|
|
|
||
|
|
unsigned short display1;
|
||
|
|
unsigned short power1;
|
||
|
|
|
||
|
|
int (*write)(struct ili9320 *ili, unsigned int reg, unsigned int val);
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/* ILI9320 register access routines */
|
||
|
|
|
||
|
|
extern int ili9320_write(struct ili9320 *ili,
|
||
|
|
unsigned int reg, unsigned int value);
|
||
|
|
|
||
|
|
extern int ili9320_write_regs(struct ili9320 *ili,
|
||
|
|
const struct ili9320_reg *values,
|
||
|
|
int nr_values);
|
||
|
|
|
||
|
|
/* Device probe */
|
||
|
|
|
||
|
|
extern int ili9320_probe_spi(struct spi_device *spi,
|
||
|
|
struct ili9320_client *cli);
|
||
|
|
|
||
|
|
extern int ili9320_remove(struct ili9320 *lcd);
|
||
|
|
extern void ili9320_shutdown(struct ili9320 *lcd);
|
||
|
|
|
||
|
|
/* PM */
|
||
|
|
|
||
|
|
extern int ili9320_suspend(struct ili9320 *lcd);
|
||
|
|
extern int ili9320_resume(struct ili9320 *lcd);
|