/* 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/ * * 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. */ /* 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, 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, pm_message_t state); extern int ili9320_resume(struct ili9320 *lcd);