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