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cccb6d3c14
Provide support for the ILI9320 display controller chip which is found in many LCD displays. Included with this is support for an example LCD using this chip, the VGG2432A4. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
81 lines
1.9 KiB
C
81 lines
1.9 KiB
C
/* 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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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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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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 int 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, pm_message_t state);
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extern int ili9320_resume(struct ili9320 *lcd);
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